Add files using upload-large-folder tool

local-test-commons-compress-delta-03/fuzz-tooling/infra/base-images/README.md

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+Building all infra images:
+
+```bash
+# run from project root
+infra/base-images/all.sh
+```

local-test-commons-compress-delta-03/fuzz-tooling/infra/base-images/aixcc_build_all.sh

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+#!/bin/bash -eux
+
+if [ "$1" = "--cache-from" ]; then
+    PULL_CACHE=1
+    shift
+    CACHE_TAG="${1//\//-}"  # s/\//-/g -> for branch names that contain slashes
+    shift
+elif [ "$1" = "--cache-to" ]; then
+    PUSH_CACHE=1
+    shift
+    CACHE_TAG="${1//\//-}"  # s/\//-/g -> for branch names that contain slashes
+    shift
+fi
+
+ARG_TAG="$1"
+shift
+
+BASE_IMAGES=(
+    "ghcr.io/aixcc-finals/base-image            infra/base-images/base-image"
+    "ghcr.io/aixcc-finals/base-clang            infra/base-images/base-clang"
+    "ghcr.io/aixcc-finals/base-builder          infra/base-images/base-builder"
+    "ghcr.io/aixcc-finals/base-builder-go       infra/base-images/base-builder-go"
+    "ghcr.io/aixcc-finals/base-builder-jvm      infra/base-images/base-builder-jvm"
+    "ghcr.io/aixcc-finals/base-builder-python   infra/base-images/base-builder-python"
+    "ghcr.io/aixcc-finals/base-builder-rust     infra/base-images/base-builder-rust"
+    "ghcr.io/aixcc-finals/base-builder-ruby     infra/base-images/base-builder-ruby"
+    "ghcr.io/aixcc-finals/base-builder-swift    infra/base-images/base-builder-swift"
+    "ghcr.io/aixcc-finals/base-runner           infra/base-images/base-runner"
+    "ghcr.io/aixcc-finals/base-runner-debug     infra/base-images/base-runner-debug"
+)
+
+for tuple in "${BASE_IMAGES[@]}"; do
+    read -r image path <<< "$tuple"
+
+    if [ "${PULL_CACHE+x}" ]; then
+
+        docker buildx build \
+            --build-arg IMG_TAG="${ARG_TAG}" \
+            --cache-from=type=registry,ref="${image}:${CACHE_TAG}" \
+            --tag "${image}:${ARG_TAG}" --push "$@" "${path}"
+
+    elif [ "${PUSH_CACHE+x}" ]; then
+
+        docker buildx build \
+            --build-arg IMG_TAG="${ARG_TAG}" \
+            --cache-from=type=registry,ref="${image}:${CACHE_TAG}" \
+            --cache-to=type=registry,ref="${image}:${CACHE_TAG}",mode=max \
+            --tag "${image}:${ARG_TAG}" --push "$@" "${path}"
+
+    else
+
+        docker buildx build \
+            --build-arg IMG_TAG="${ARG_TAG}" \
+            --tag "${image}:${ARG_TAG}" --push "$@" "${path}"
+
+    fi
+
+done
+

local-test-commons-compress-delta-03/fuzz-tooling/infra/base-images/all.sh

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+#!/bin/bash -eux
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+docker build --pull -t ghcr.io/aixcc-finals/base-image "$@" infra/base-images/base-image
+docker build -t ghcr.io/aixcc-finals/base-clang "$@" infra/base-images/base-clang
+docker build -t ghcr.io/aixcc-finals/base-builder "$@" infra/base-images/base-builder
+docker build -t ghcr.io/aixcc-finals/base-builder-go "$@" infra/base-images/base-builder-go
+docker build -t ghcr.io/aixcc-finals/base-builder-jvm "$@" infra/base-images/base-builder-jvm
+docker build -t ghcr.io/aixcc-finals/base-builder-python "$@" infra/base-images/base-builder-python
+docker build -t ghcr.io/aixcc-finals/base-builder-rust "$@" infra/base-images/base-builder-rust
+docker build -t ghcr.io/aixcc-finals/base-builder-ruby "$@" infra/base-images/base-builder-ruby
+docker build -t ghcr.io/aixcc-finals/base-builder-swift "$@" infra/base-images/base-builder-swift
+docker build -t ghcr.io/aixcc-finals/base-runner "$@" infra/base-images/base-runner
+docker build -t ghcr.io/aixcc-finals/base-runner-debug "$@" infra/base-images/base-runner-debug

local-test-commons-compress-delta-03/fuzz-tooling/infra/ci/build.py

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+#!/usr/bin/env python
+# Copyright 2019 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+"""Build modified projects."""
+
+from __future__ import print_function
+
+import enum
+import os
+import re
+import sys
+import subprocess
+import yaml
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import constants
+
+CANARY_PROJECT = 'skcms'
+
+DEFAULT_ARCHITECTURES = ['x86_64']
+DEFAULT_ENGINES = ['afl', 'honggfuzz', 'libfuzzer', 'centipede']
+DEFAULT_SANITIZERS = ['address', 'undefined']
+
+
+def get_changed_files_output():
+  """Returns the output of a git command that discovers changed files."""
+  branch_commit_hash = subprocess.check_output(
+      ['git', 'merge-base', 'HEAD', 'origin/HEAD']).strip().decode()
+
+  return subprocess.check_output(
+      ['git', 'diff', '--name-only', branch_commit_hash + '..']).decode()
+
+
+def get_modified_buildable_projects():
+  """Returns a list of all the projects modified in this commit that have a
+  build.sh file."""
+  git_output = get_changed_files_output()
+  projects_regex = '.*projects/(?P<name>.*)/.*\n'
+  modified_projects = set(re.findall(projects_regex, git_output))
+  projects_dir = os.path.join(get_oss_fuzz_root(), 'projects')
+  # Filter out projects without Dockerfile files since new projects and reverted
+  # projects frequently don't have them. In these cases we don't want Travis's
+  # builds to fail.
+  modified_buildable_projects = []
+  for project in modified_projects:
+    if not os.path.exists(os.path.join(projects_dir, project, 'Dockerfile')):
+      print('Project {0} does not have Dockerfile. skipping build.'.format(
+          project))
+      continue
+    modified_buildable_projects.append(project)
+  return modified_buildable_projects
+
+
+def get_oss_fuzz_root():
+  """Get the absolute path of the root of the oss-fuzz checkout."""
+  script_path = os.path.realpath(__file__)
+  return os.path.abspath(
+      os.path.dirname(os.path.dirname(os.path.dirname(script_path))))
+
+
+def execute_helper_command(helper_command):
+  """Execute |helper_command| using helper.py."""
+  root = get_oss_fuzz_root()
+  script_path = os.path.join(root, 'infra', 'helper.py')
+  command = ['python', script_path] + helper_command
+  print('Running command: %s' % ' '.join(command))
+  subprocess.check_call(command)
+
+
+def build_fuzzers(project, engine, sanitizer, architecture):
+  """Execute helper.py's build_fuzzers command on |project|. Build the fuzzers
+  with |engine| and |sanitizer| for |architecture|."""
+  execute_helper_command([
+      'build_fuzzers', project, '--engine', engine, '--sanitizer', sanitizer,
+      '--architecture', architecture
+  ])
+
+
+def check_build(project, engine, sanitizer, architecture):
+  """Execute helper.py's check_build command on |project|, assuming it was most
+  recently built with |engine| and |sanitizer| for |architecture|."""
+  execute_helper_command([
+      'check_build', project, '--engine', engine, '--sanitizer', sanitizer,
+      '--architecture', architecture
+  ])
+
+
+def should_build_coverage(project_yaml):
+  """Returns True if a coverage build should be done based on project.yaml
+  contents."""
+  # Enable coverage builds on projects that use engines. Those that don't use
+  # engines shouldn't get coverage builds.
+  engines = project_yaml.get('fuzzing_engines', DEFAULT_ENGINES)
+  engineless = 'none' in engines
+  if engineless:
+    assert_message = ('Forbidden to specify multiple engines for '
+                      '"fuzzing_engines" if "none" is specified.')
+    assert len(engines) == 1, assert_message
+    return False
+  if 'wycheproof' in engines:
+    return False
+
+  language = project_yaml.get('language')
+  if language not in constants.LANGUAGES_WITH_COVERAGE_SUPPORT:
+    print(('Project is written in "{language}", '
+           'coverage is not supported yet.').format(language=language))
+    return False
+
+  return True
+
+
+def flatten_options(option_list):
+  """Generator that flattens |option_list| (a list of sanitizers, architectures
+  or fuzzing engines) by returning each element in the list that isn't a
+  dictionary. For elements that are dictionaries, the sole key is returned."""
+  result = []
+  for option in option_list:
+    if isinstance(option, dict):
+      keys = list(option.keys())
+      assert len(keys) == 1
+      result.append(keys[0])
+      continue
+    result.append(option)
+  print(result)
+  return result
+
+
+def should_build(project_yaml):
+  """Returns True on if the build specified is enabled in the project.yaml."""
+
+  if os.getenv('SANITIZER') == 'coverage':
+    # This assumes we only do coverage builds with libFuzzer on x86_64.
+    return should_build_coverage(project_yaml)
+
+  def is_enabled(env_var, yaml_name, defaults):
+    """Is the value of |env_var| enabled in |project_yaml| (in the |yaml_name|
+    section)? Uses |defaults| if |yaml_name| section is unspecified."""
+    return os.getenv(env_var) in flatten_options(
+        project_yaml.get(yaml_name, defaults))
+
+  return (is_enabled('ENGINE', 'fuzzing_engines', DEFAULT_ENGINES) and
+          is_enabled('SANITIZER', 'sanitizers', DEFAULT_SANITIZERS) and
+          is_enabled('ARCHITECTURE', 'architectures', DEFAULT_ARCHITECTURES))
+
+
+def build_project(project):
+  """Do the build of |project| that is specified by the environment variables -
+  SANITIZER, ENGINE, and ARCHITECTURE."""
+  root = get_oss_fuzz_root()
+  project_yaml_path = os.path.join(root, 'projects', project, 'project.yaml')
+  with open(project_yaml_path) as file_handle:
+    project_yaml = yaml.safe_load(file_handle)
+
+  if project_yaml.get('disabled', False):
+    print('Project {0} is disabled, skipping build.'.format(project))
+    return
+
+  engine = os.getenv('ENGINE')
+  sanitizer = os.getenv('SANITIZER')
+  architecture = os.getenv('ARCHITECTURE')
+
+  if not should_build(project_yaml):
+    print(('Specified build: engine: {0}, sanitizer: {1}, architecture: {2} '
+           'not enabled for this project: {3}. Skipping build.').format(
+               engine, sanitizer, architecture, project))
+
+    return
+
+  print('Building project', project)
+  build_fuzzers(project, engine, sanitizer, architecture)
+
+  run_tests = project_yaml.get('run_tests', True)
+  if engine != 'none' and sanitizer != 'coverage' and run_tests:
+    check_build(project, engine, sanitizer, architecture)
+
+
+class BuildModifiedProjectsResult(enum.Enum):
+  """Enum containing the return values of build_modified_projects()."""
+  NONE_BUILT = 0
+  BUILD_SUCCESS = 1
+  BUILD_FAIL = 2
+
+
+def build_modified_projects():
+  """Build modified projects. Returns BuildModifiedProjectsResult.NONE_BUILT if
+  no builds were attempted. Returns BuildModifiedProjectsResult.BUILD_SUCCESS if
+  all attempts succeed, otherwise returns
+  BuildModifiedProjectsResult.BUILD_FAIL."""
+  projects = get_modified_buildable_projects()
+  if not projects:
+    return BuildModifiedProjectsResult.NONE_BUILT
+
+  failed_projects = []
+  for project in projects:
+    try:
+      build_project(project)
+    except subprocess.CalledProcessError:
+      failed_projects.append(project)
+
+  if failed_projects:
+    print('Failed projects:', ' '.join(failed_projects))
+    return BuildModifiedProjectsResult.BUILD_FAIL
+
+  return BuildModifiedProjectsResult.BUILD_SUCCESS
+
+
+def is_infra_changed():
+  """Returns True if the infra directory was changed."""
+  git_output = get_changed_files_output()
+  infra_code_regex = '.*infra/.*\n'
+  return re.search(infra_code_regex, git_output) is not None
+
+
+def build_base_images():
+  """Builds base images."""
+  # TODO(jonathanmetzman): Investigate why caching fails so often and
+  # when we improve it, build base-clang as well. Also, move this function
+  # to a helper command when we can support base-clang.
+  execute_helper_command(['pull_images'])
+  images = [
+      'base-image',
+      'base-builder',
+      'base-builder-go',
+      'base-builder-javascript',
+      'base-builder-jvm',
+      'base-builder-python',
+      'base-builder-rust',
+      'base-builder-swift',
+      'base-builder-ruby',
+      'base-runner',
+  ]
+  for image in images:
+    try:
+      execute_helper_command(['build_image', image, '--no-pull', '--cache'])
+    except subprocess.CalledProcessError:
+      return 1
+
+  return 0
+
+
+def build_canary_project():
+  """Builds a specific project when infra/ is changed to verify that infra/
+  changes don't break things. Returns False if build was attempted but
+  failed."""
+
+  try:
+    build_project('skcms')
+  except subprocess.CalledProcessError:
+    return False
+
+  return True
+
+
+def main():
+  """Build modified projects or canary project."""
+  os.environ['OSS_FUZZ_CI'] = '1'
+  infra_changed = is_infra_changed()
+  if infra_changed:
+    print('Pulling and building base images first.')
+    if build_base_images():
+      return 1
+
+  result = build_modified_projects()
+  if result == BuildModifiedProjectsResult.BUILD_FAIL:
+    return 1
+
+  # It's unnecessary to build the canary if we've built any projects already.
+  no_projects_built = result == BuildModifiedProjectsResult.NONE_BUILT
+  should_build_canary = no_projects_built and infra_changed
+  if should_build_canary and not build_canary_project():
+    return 1
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())

local-test-commons-compress-delta-03/fuzz-tooling/infra/ci/build_test.py

@@ -0,0 +1,124 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+"""Tests for build.py"""
+
+import os
+import sys
+import unittest
+from unittest import mock
+
+# pylint: disable=wrong-import-position
+INFRA_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.append(INFRA_DIR)
+
+from ci import build
+
+
+def patch_environ(testcase_obj):
+  """Patch environment."""
+  env = {}
+  patcher = mock.patch.dict(os.environ, env)
+  testcase_obj.addCleanup(patcher.stop)
+  patcher.start()
+
+
+def _set_coverage_build():
+  """Set the right environment variables for a coverage build."""
+  os.environ['SANITIZER'] = 'coverage'
+  os.environ['ENGINE'] = 'libfuzzer'
+  os.environ['ARCHITECTURE'] = 'x86_64'
+
+
+class TestShouldBuild(unittest.TestCase):
+  """Tests that should_build() works as intended."""
+
+  def setUp(self):
+    patch_environ(self)
+
+  def test_none_engine_coverage_build(self):
+    """Tests that should_build returns False for a coverage build of a
+    project that specifies 'none' for fuzzing_engines."""
+    _set_coverage_build()
+    project_yaml = {
+        'language': 'c++',
+        'fuzzing_engines': ['none'],
+        'sanitizers': ['address']
+    }
+    self.assertFalse(build.should_build(project_yaml))
+
+  def test_unspecified_engines_coverage_build(self):
+    """Tests that should_build returns True for a coverage build of a
+    project that doesn't specify fuzzing_engines."""
+    _set_coverage_build()
+    project_yaml = {'language': 'c++'}
+    self.assertTrue(build.should_build(project_yaml))
+
+  def test_libfuzzer_coverage_build(self):
+    """Tests that should_build returns True for coverage build of a project
+    specifying 'libfuzzer' for fuzzing_engines."""
+    _set_coverage_build()
+    project_yaml = {
+        'language': 'c++',
+        'fuzzing_engines': ['libfuzzer'],
+        'sanitizers': ['address']
+    }
+    self.assertTrue(build.should_build(project_yaml))
+
+  def test_go_coverage_build(self):
+    """Tests that should_build returns True for coverage build of a project
+    specifying 'libfuzzer' for fuzzing_engines."""
+    _set_coverage_build()
+    project_yaml = {'language': 'go'}
+    self.assertTrue(build.should_build(project_yaml))
+
+  def test_engine_project_none_build(self):
+    """Tests that should_build returns False for an engine: 'none' build when
+    the project doesn't specify engines."""
+    os.environ['SANITIZER'] = 'address'
+    os.environ['ENGINE'] = 'none'
+    os.environ['ARCHITECTURE'] = 'x86_64'
+    project_yaml = {
+        'language': 'c++',
+        'fuzzing_engines': ['libfuzzer'],
+        'sanitizers': ['address']
+    }
+    self.assertFalse(build.should_build(project_yaml))
+
+  def test_centipede_none_build(self):
+    """Tests that should_build returns True for none sanitizer build of a
+    project specifying 'centipede' for fuzzing_engines."""
+    os.environ['SANITIZER'] = 'none'
+    os.environ['ENGINE'] = 'centipede'
+    os.environ['ARCHITECTURE'] = 'x86_64'
+    project_yaml = {
+        'language': 'c++',
+        'fuzzing_engines': ['centipede'],
+        'sanitizers': ['none']
+    }
+    self.assertTrue(build.should_build(project_yaml))
+
+  def test_centipede_address_build(self):
+    """Tests that should_build returns True for address sanitizer build of a
+    project specifying 'centipede' for fuzzing_engines."""
+    os.environ['SANITIZER'] = 'address'
+    os.environ['ENGINE'] = 'centipede'
+    os.environ['ARCHITECTURE'] = 'x86_64'
+    project_yaml = {
+        'language': 'c++',
+        'fuzzing_engines': ['centipede'],
+        'sanitizers': ['address']
+    }
+    self.assertTrue(build.should_build(project_yaml))

local-test-commons-compress-delta-03/fuzz-tooling/infra/ci/requirements.txt

@@ -0,0 +1,9 @@
+# Requirements for submitting code changes to infra/ (needed by presubmit.py).
+parameterized==0.7.4
+pyfakefs==4.5.6
+pylint==2.5.3
+pytest==7.1.2
+pytest-xdist==2.5.0
+PyYAML==6.0
+requests==2.31.0
+yapf==0.32.0

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/CHANGELOG

@@ -0,0 +1,3 @@
+	Next Release:
+
+	Improve detection of changed files better by fixing https://github.com/google/oss-fuzz/issues/7011

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/affected_fuzz_targets.py

@@ -0,0 +1,113 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for dealing with fuzz targets affected by the change-under-test
+(CUT)."""
+import logging
+import os
+import sys
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+import utils
+
+
+def remove_unaffected_fuzz_targets(clusterfuzz_deployment, out_dir,
+                                   files_changed, repo_path):
+  """Removes all non affected fuzz targets in the out directory.
+
+  Args:
+    clusterfuzz_deployment: The ClusterFuzz deployment object.
+    out_dir: The location of the fuzz target binaries.
+    files_changed: A list of files changed compared to HEAD.
+    repo_path: The location of the OSS-Fuzz repo in the docker image.
+
+  This function will not delete fuzz targets unless it knows that the fuzz
+  targets are unaffected. For example, this means that fuzz targets which don't
+  have coverage data on will not be deleted.
+  """
+  if not files_changed:
+    # Don't remove any fuzz targets if there is no difference from HEAD.
+    logging.info('No files changed compared to HEAD.')
+    return
+
+  logging.info('Files changed in PR: %s', files_changed)
+
+  fuzz_target_paths = utils.get_fuzz_targets(out_dir)
+  if not fuzz_target_paths:
+    # Nothing to remove.
+    logging.error('No fuzz targets found in out dir.')
+    return
+
+  coverage = clusterfuzz_deployment.get_coverage(repo_path)
+  if not coverage:
+    # Don't remove any fuzz targets unless we have data.
+    logging.error('Could not find latest coverage report.')
+    return
+
+  affected_fuzz_targets = get_affected_fuzz_targets(coverage, fuzz_target_paths,
+                                                    files_changed)
+
+  if not affected_fuzz_targets:
+    logging.info('No affected fuzz targets detected, keeping all as fallback.')
+    return
+
+  logging.info('Using affected fuzz targets: %s.', affected_fuzz_targets)
+  unaffected_fuzz_targets = set(fuzz_target_paths) - affected_fuzz_targets
+  logging.info('Removing unaffected fuzz targets: %s.', unaffected_fuzz_targets)
+
+  # Remove all the targets that are not affected.
+  for fuzz_target_path in unaffected_fuzz_targets:
+    try:
+      os.remove(fuzz_target_path)
+    except OSError as error:
+      logging.error('%s occurred while removing file %s', error,
+                    fuzz_target_path)
+
+
+def is_fuzz_target_affected(coverage, fuzz_target_path, files_changed):
+  """Returns True if a fuzz target (|fuzz_target_path|) is affected by
+  |files_changed|."""
+  fuzz_target = os.path.basename(fuzz_target_path)
+  covered_files = coverage.get_files_covered_by_target(fuzz_target)
+  if not covered_files:
+    # Assume a fuzz target is affected if we can't get its coverage from
+    # OSS-Fuzz.
+    # TODO(metzman): Figure out what we should do if covered_files is [].
+    # Should we act as if we couldn't get the coverage?
+    logging.info('Could not get coverage for %s. Treating as affected.',
+                 fuzz_target)
+    return True
+
+  covered_files = [
+      os.path.normpath(covered_file) for covered_file in covered_files
+  ]
+  logging.info('Fuzz target %s is affected by: %s', fuzz_target, covered_files)
+  for filename in files_changed:
+    if filename in covered_files:
+      logging.info('Fuzz target %s is affected by changed file: %s',
+                   fuzz_target, filename)
+      return True
+
+  logging.info('Fuzz target %s is not affected.', fuzz_target)
+  return False
+
+
+def get_affected_fuzz_targets(coverage, fuzz_target_paths, files_changed):
+  """Returns a list of paths of affected targets."""
+  affected_fuzz_targets = set()
+  for fuzz_target_path in fuzz_target_paths:
+    if is_fuzz_target_affected(coverage, fuzz_target_path, files_changed):
+      affected_fuzz_targets.add(fuzz_target_path)
+
+  return affected_fuzz_targets

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/affected_fuzz_targets_test.py

@@ -0,0 +1,113 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for affected_fuzz_targets.py"""
+import os
+import shutil
+import tempfile
+import unittest
+from unittest import mock
+
+import parameterized
+
+import affected_fuzz_targets
+import clusterfuzz_deployment
+import get_coverage
+import test_helpers
+import workspace_utils
+
+# pylint: disable=protected-access
+
+# NOTE: This integration test relies on
+# https://github.com/google/oss-fuzz/tree/master/projects/example project.
+EXAMPLE_PROJECT = 'example'
+
+EXAMPLE_FILE_CHANGED = 'test.txt'
+
+TEST_DATA_OUT_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                                  'test_data', 'build-out')
+
+
+class RemoveUnaffectedFuzzTargetsTest(unittest.TestCase):
+  """Tests remove_unaffected_fuzzers."""
+
+  TEST_FUZZER_1 = os.path.join(TEST_DATA_OUT_PATH, 'example_crash_fuzzer')
+  TEST_FUZZER_2 = os.path.join(TEST_DATA_OUT_PATH, 'example_nocrash_fuzzer')
+
+  # yapf: disable
+  @parameterized.parameterized.expand([
+      # Tests specific affected fuzzers are kept.
+      ([[EXAMPLE_FILE_CHANGED], None], 2,),
+
+      # Tests specific affected fuzzer is kept.
+      ([[EXAMPLE_FILE_CHANGED], ['not/a/real/file']], 1),
+
+      # Tests all fuzzers are kept if none are deemed affected.
+      ([None, None], 2),
+
+      # Tests that multiple fuzzers are kept if multiple fuzzers are affected.
+      ([[EXAMPLE_FILE_CHANGED], [EXAMPLE_FILE_CHANGED]], 2),
+      ])
+  # yapf: enable
+  def test_remove_unaffected_fuzz_targets(self, side_effect, expected_dir_len):
+    """Tests that remove_unaffected_fuzzers has the intended effect."""
+    config = test_helpers.create_run_config(
+        cfl_platform='github',
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        workspace='/workspace')
+    workspace = workspace_utils.Workspace(config)
+    deployment = clusterfuzz_deployment.get_clusterfuzz_deployment(
+        config, workspace)
+    # We can't use fakefs in this test because this test executes
+    # utils.is_fuzz_target_local. This function relies on the executable bit
+    # being set, which doesn't work properly in fakefs.
+    with tempfile.TemporaryDirectory() as tmp_dir, mock.patch(
+        'get_coverage.OSSFuzzCoverage.get_files_covered_by_target'
+    ) as mock_get_files:
+      with mock.patch('get_coverage._get_oss_fuzz_fuzzer_stats_dir_url',
+                      return_value=1):
+        mock_get_files.side_effect = side_effect
+        shutil.copy(self.TEST_FUZZER_1, tmp_dir)
+        shutil.copy(self.TEST_FUZZER_2, tmp_dir)
+
+        affected_fuzz_targets.remove_unaffected_fuzz_targets(
+            deployment, tmp_dir, [EXAMPLE_FILE_CHANGED], '')
+        self.assertEqual(expected_dir_len, len(os.listdir(tmp_dir)))
+
+
+class IsFuzzTargetAffectedTest(unittest.TestCase):
+  """Tests for is_fuzz_target_affected."""
+
+  def setUp(self):
+    self.fuzz_target_path = '/fuzz_target'
+
+  def test_relative_paths(self):
+    """Tests that is_fuzz_target_affected works as intended when the covered
+    files are relative paths."""
+    with mock.patch.object(
+        get_coverage.FilesystemCoverage,
+        'get_files_covered_by_target',
+    ) as get_files_covered_by_target:
+      get_files_covered_by_target.return_value = [
+          '/work/build/../../src/systemd/src/basic/alloc-util.c'
+      ]
+      coverage = get_coverage.FilesystemCoverage('/', '/')
+
+      self.assertTrue(
+          affected_fuzz_targets.is_fuzz_target_affected(
+              coverage, self.fuzz_target_path,
+              ['/src/systemd/src/basic/alloc-util.c']))
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/base_runner_utils.py

@@ -0,0 +1,33 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Utilities for scripts from ghcr.io/aixcc-finals/base-runner."""
+
+import os
+
+import config_utils
+
+
+def get_env(config, workspace):
+  """Returns a dictionary containing the current environment with additional env
+  vars set to values needed to run a fuzzer."""
+  env = os.environ.copy()
+  env['SANITIZER'] = config.sanitizer
+  env['FUZZING_LANGUAGE'] = config.language
+  env['OUT'] = workspace.out
+  env['CIFUZZ'] = 'True'
+  env['FUZZING_ENGINE'] = config_utils.DEFAULT_ENGINE
+  env['ARCHITECTURE'] = config.architecture
+  # Do this so we don't fail in tests.
+  env['FUZZER_ARGS'] = '-rss_limit_mb=2560 -timeout=25'
+  return env

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/build-images.sh

@@ -0,0 +1,34 @@
+#! /bin/bash -eux
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Script for building the docker images for cifuzz.
+
+CIFUZZ_DIR=$(dirname "$0")
+CIFUZZ_DIR=$(realpath $CIFUZZ_DIR)
+INFRA_DIR=$(realpath $CIFUZZ_DIR/..)
+OSS_FUZZ_ROOT=$(realpath $INFRA_DIR/..)
+
+# Build cifuzz-base.
+docker build --tag ghcr.io/aixcc-finals/cifuzz-base --file $CIFUZZ_DIR/cifuzz-base/Dockerfile $OSS_FUZZ_ROOT
+
+# Build run-fuzzers and build-fuzzers images.
+docker build \
+  --tag ghcr.io/aixcc-finals/clusterfuzzlite-build-fuzzers-test:v1 \
+  --tag ghcr.io/aixcc-finals/clusterfuzzlite-build-fuzzers:v1 \
+  --file $INFRA_DIR/build_fuzzers.Dockerfile $INFRA_DIR
+docker build \
+  --tag ghcr.io/aixcc-finals/clusterfuzzlite-run-fuzzers:v1 \
+  --tag ghcr.io/aixcc-finals/clusterfuzzlite-run-fuzzers-test:v1 \
+  --file $INFRA_DIR/run_fuzzers.Dockerfile $INFRA_DIR

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/build_fuzzers.py

@@ -0,0 +1,217 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module used by CI tools in order to interact with fuzzers. This module helps
+CI tools to build fuzzers."""
+
+import logging
+import os
+import sys
+
+import affected_fuzz_targets
+import base_runner_utils
+import clusterfuzz_deployment
+import continuous_integration
+import docker
+import logs
+import workspace_utils
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+import helper
+import utils
+
+logs.init()
+
+
+def check_project_src_path(project_src_path):
+  """Returns True if |project_src_path| exists."""
+  if not os.path.exists(project_src_path):
+    logging.error(
+        'PROJECT_SRC_PATH: %s does not exist. '
+        'Are you mounting it correctly?', project_src_path)
+    return False
+  return True
+
+
+# pylint: disable=too-many-arguments
+
+
+class Builder:  # pylint: disable=too-many-instance-attributes
+  """Class for fuzzer builders."""
+
+  def __init__(self, config, ci_system):
+    self.config = config
+    self.ci_system = ci_system
+    self.workspace = workspace_utils.Workspace(config)
+    self.workspace.initialize_dir(self.workspace.out)
+    self.workspace.initialize_dir(self.workspace.work)
+    self.clusterfuzz_deployment = (
+        clusterfuzz_deployment.get_clusterfuzz_deployment(
+            self.config, self.workspace))
+    self.image_repo_path = None
+    self.host_repo_path = None
+    self.repo_manager = None
+
+  def build_image_and_checkout_src(self):
+    """Builds the project builder image and checkout source code for the patch
+    we want to fuzz (if necessary). Returns True on success."""
+    result = self.ci_system.prepare_for_fuzzer_build()
+    if not result.success:
+      return False
+    self.image_repo_path = result.image_repo_path
+    self.repo_manager = result.repo_manager
+    if self.config.output_sarif:
+      self.workspace.make_repo_for_sarif(self.repo_manager)
+    logging.info('repo_dir: %s.', self.repo_manager.repo_dir)
+    self.host_repo_path = self.repo_manager.repo_dir
+    return True
+
+  def build_fuzzers(self):
+    """Moves the source code we want to fuzz into the project builder and builds
+    the fuzzers from that source code. Returns True on success."""
+    docker_args, docker_container = docker.get_base_docker_run_args(
+        self.workspace, self.config.sanitizer, self.config.language,
+        self.config.architecture, self.config.docker_in_docker)
+    if not docker_container:
+      docker_args.extend(
+          _get_docker_build_fuzzers_args_not_container(self.host_repo_path))
+
+    build_command = self.ci_system.get_build_command(self.host_repo_path,
+                                                     self.image_repo_path)
+
+    # Set extra environment variables so that they are visible to the build.
+    for key in self.config.extra_environment_variables:
+      # Don't specify their value in case they get echoed.
+      docker_args.extend(['-e', key])
+
+    docker_args.extend([
+        docker.get_project_image_name(self.config.oss_fuzz_project_name),
+        '/bin/bash',
+        '-c',
+        build_command,
+    ])
+    logging.info('Building with %s sanitizer.', self.config.sanitizer)
+
+    # TODO(metzman): Stop using helper.docker_run so we can get rid of
+    # docker.get_base_docker_run_args and merge its contents into
+    # docker.get_base_docker_run_command.
+    if not helper.docker_run(docker_args):
+      logging.error('Building fuzzers failed.')
+      return False
+
+    return True
+
+  def upload_build(self):
+    """Upload build."""
+    if self.config.upload_build:
+      self.clusterfuzz_deployment.upload_build(
+          self.repo_manager.get_current_commit())
+
+    return True
+
+  def check_fuzzer_build(self):
+    """Checks the fuzzer build. Returns True on success or if config specifies
+    to skip check."""
+    if not self.config.bad_build_check:
+      return True
+
+    return check_fuzzer_build(self.config)
+
+  def build(self):
+    """Builds the image, checkouts the source (if needed), builds the fuzzers
+    and then removes the unaffectted fuzzers. Returns True on success."""
+    methods = [
+        self.build_image_and_checkout_src,
+        self.build_fuzzers,
+        self.remove_unaffected_fuzz_targets,
+        self.upload_build,
+        self.check_fuzzer_build,
+    ]
+    for method in methods:
+      if not method():
+        return False
+    return True
+
+  def remove_unaffected_fuzz_targets(self):
+    """Removes the fuzzers unaffected by the patch."""
+    if self.config.keep_unaffected_fuzz_targets:
+      logging.info('Not removing unaffected fuzz targets.')
+      return True
+
+    logging.info('Removing unaffected fuzz targets.')
+    changed_files = self.ci_system.get_changed_code_under_test(
+        self.repo_manager)
+    affected_fuzz_targets.remove_unaffected_fuzz_targets(
+        self.clusterfuzz_deployment, self.workspace.out, changed_files,
+        self.image_repo_path)
+    return True
+
+
+def build_fuzzers(config):
+  """Builds all of the fuzzers for a specific OSS-Fuzz project.
+
+  Args:
+    config: The configuration object for building fuzzers.
+
+  Returns:
+    True if build succeeded.
+  """
+  # Do some quick validation.
+  if config.project_src_path and not check_project_src_path(
+      config.project_src_path):
+    return False
+
+  # Get the builder and then build the fuzzers.
+  ci_system = continuous_integration.get_ci(config)
+  logging.info('ci_system: %s.', ci_system)
+  builder = Builder(config, ci_system)
+  return builder.build()
+
+
+def check_fuzzer_build(config):
+  """Checks the integrity of the built fuzzers.
+
+  Args:
+    config: The config object.
+
+  Returns:
+    True if fuzzers pass OSS-Fuzz's build check.
+  """
+  workspace = workspace_utils.Workspace(config)
+  if not os.path.exists(workspace.out):
+    logging.error('Invalid out directory: %s.', workspace.out)
+    return False
+  if not os.listdir(workspace.out):
+    logging.error('No fuzzers found in out directory: %s.', workspace.out)
+    return False
+
+  env = base_runner_utils.get_env(config, workspace)
+  if config.allowed_broken_targets_percentage is not None:
+    env['ALLOWED_BROKEN_TARGETS_PERCENTAGE'] = (
+        config.allowed_broken_targets_percentage)
+
+  stdout, stderr, retcode = utils.execute('test_all.py', env=env)
+  print(f'Build check: stdout: {stdout}\nstderr: {stderr}')
+  if retcode == 0:
+    logging.info('Build check passed.')
+    return True
+  logging.error('Build check failed.')
+  return False
+
+
+def _get_docker_build_fuzzers_args_not_container(host_repo_path):
+  """Returns arguments to the docker build arguments that are needed to use
+  |host_repo_path| when the host of the OSS-Fuzz builder container is not
+  another container."""
+  return ['-v', f'{host_repo_path}:{host_repo_path}']

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/build_fuzzers_entrypoint.py

@@ -0,0 +1,60 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Builds a specific OSS-Fuzz project's fuzzers for CI tools."""
+import logging
+import sys
+
+import build_fuzzers
+import logs
+import config_utils
+
+# pylint: disable=c-extension-no-member
+# pylint gets confused because of the relative import of cifuzz.
+
+logs.init()
+
+
+def build_fuzzers_entrypoint():
+  """Builds OSS-Fuzz project's fuzzers for CI tools."""
+  config = config_utils.BuildFuzzersConfig()
+
+  if config.dry_run:
+    # Sets the default return code on error to success.
+    returncode = 0
+  else:
+    # The default return code when an error occurs.
+    returncode = 1
+
+  if not build_fuzzers.build_fuzzers(config):
+    logging.error('Error building fuzzers for (commit: %s, pr_ref: %s).',
+                  config.git_sha, config.pr_ref)
+    return returncode
+
+  return 0
+
+
+def main():
+  """Builds OSS-Fuzz project's fuzzers for CI tools.
+
+  Note: The resulting fuzz target binaries of this build are placed in
+  the directory: ${GITHUB_WORKSPACE}/out
+
+  Returns:
+    0 on success or nonzero on failure.
+  """
+  return build_fuzzers_entrypoint()
+
+
+if __name__ == '__main__':
+  sys.exit(main())

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/build_fuzzers_test.py

@@ -0,0 +1,403 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests the functionality of the cifuzz module."""
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+from unittest import mock
+
+import parameterized
+
+# pylint: disable=wrong-import-position
+INFRA_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.append(INFRA_DIR)
+
+OSS_FUZZ_DIR = os.path.dirname(INFRA_DIR)
+
+import build_fuzzers
+import continuous_integration
+import repo_manager
+import test_helpers
+
+# NOTE: This integration test relies on
+# https://github.com/google/oss-fuzz/tree/master/projects/example project.
+EXAMPLE_PROJECT = 'example'
+
+# Location of data used for testing.
+TEST_DATA_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                              'test_data')
+
+# An example fuzzer that triggers an crash.
+# Binary is a copy of the example project's do_stuff_fuzzer and can be
+# generated by running "python3 infra/helper.py build_fuzzers example".
+EXAMPLE_CRASH_FUZZER = 'example_crash_fuzzer'
+
+# An example fuzzer that does not trigger a crash.
+# Binary is a modified version of example project's do_stuff_fuzzer. It is
+# created by removing the bug in my_api.cpp.
+EXAMPLE_NOCRASH_FUZZER = 'example_nocrash_fuzzer'
+
+# A fuzzer to be built in build_fuzzers integration tests.
+EXAMPLE_BUILD_FUZZER = 'do_stuff_fuzzer'
+
+# pylint: disable=no-self-use,protected-access,too-few-public-methods,unused-argument
+
+
+def docker_command_has_env_var_arg(command, env_var_arg):
+  """Returns True if a docker command has a specific env var argument."""
+  for idx, element in enumerate(command):
+    if idx == 0:
+      # We're looking for the variable which can't be the first argument.
+      continue
+
+    if element == env_var_arg and command[idx - 1] == '-e':
+      return True
+  return False
+
+
+class BuildFuzzersTest(unittest.TestCase):
+  """Unit tests for build_fuzzers."""
+
+  @mock.patch('build_specified_commit.detect_main_repo',
+              return_value=('example.com', '/path'))
+  @mock.patch('repo_manager._clone', return_value=None)
+  @mock.patch('continuous_integration.checkout_specified_commit')
+  @mock.patch('helper.docker_run', return_value=False)  # We want to quit early.
+  def test_cifuzz_env_var(self, mock_docker_run, _, __, ___):
+    """Tests that the CIFUZZ env var is set."""
+
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      build_fuzzers.build_fuzzers(
+          test_helpers.create_build_config(
+              oss_fuzz_project_name=EXAMPLE_PROJECT,
+              project_repo_name=EXAMPLE_PROJECT,
+              workspace=tmp_dir,
+              pr_ref='refs/pull/1757/merge'))
+
+      docker_run_command = mock_docker_run.call_args_list[0][0][0]
+
+    self.assertTrue(
+        docker_command_has_env_var_arg(docker_run_command, 'CIFUZZ=True'))
+
+  @mock.patch('build_specified_commit.detect_main_repo',
+              return_value=('example.com', '/path'))
+  @mock.patch('repo_manager._clone', return_value=None)
+  @mock.patch('continuous_integration.checkout_specified_commit')
+  @mock.patch('helper.docker_run', return_value=False)  # We want to quit early.
+  def test_extra_env_var(self, mock_docker_run, _, __, ___):
+    """Tests that the CIFUZZ env var is set."""
+
+    extra_env_var = 'CFL_EXTRA_TOKEN'
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      with mock.patch.dict(os.environ, {extra_env_var: 'BLAH'}):
+        build_fuzzers.build_fuzzers(
+            test_helpers.create_build_config(
+                oss_fuzz_project_name=EXAMPLE_PROJECT,
+                project_repo_name=EXAMPLE_PROJECT,
+                workspace=tmp_dir,
+                pr_ref='refs/pull/1757/merge'))
+
+    docker_run_command = mock_docker_run.call_args_list[0][0][0]
+    self.assertTrue(
+        docker_command_has_env_var_arg(docker_run_command, extra_env_var))
+
+
+class InternalGithubBuildTest(unittest.TestCase):
+  """Tests for building OSS-Fuzz projects on GitHub actions."""
+  PROJECT_REPO_NAME = 'myproject'
+  SANITIZER = 'address'
+  GIT_SHA = 'fake'
+  PR_REF = 'fake'
+
+  def _create_builder(self, tmp_dir, oss_fuzz_project_name='myproject'):
+    """Creates an InternalGithubBuilder and returns it."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name=oss_fuzz_project_name,
+        project_repo_name=self.PROJECT_REPO_NAME,
+        workspace=tmp_dir,
+        sanitizer=self.SANITIZER,
+        git_sha=self.GIT_SHA,
+        pr_ref=self.PR_REF,
+        cfl_platform='github')
+    cfl_platform = continuous_integration.get_ci(config)
+    builder = build_fuzzers.Builder(config, cfl_platform)
+    builder.repo_manager = repo_manager.RepoManager('/fake')
+    return builder
+
+  @mock.patch('helper.docker_run', return_value=True)
+  @mock.patch('continuous_integration.checkout_specified_commit',
+              side_effect=None)
+  def test_correct_host_repo_path(self, _, __):
+    """Tests that the correct self.host_repo_path is set by
+    build_image_and_checkout_src. Specifically, we want the name of the
+    directory the repo is in to match the name used in the docker
+    image/container, so that it will replace the host's copy properly."""
+    image_repo_path = '/src/repo_dir'
+    with tempfile.TemporaryDirectory() as tmp_dir, mock.patch(
+        'build_specified_commit.detect_main_repo',
+        return_value=('inferred_url', image_repo_path)):
+      builder = self._create_builder(tmp_dir)
+      builder.build_image_and_checkout_src()
+
+    self.assertEqual(os.path.basename(builder.host_repo_path),
+                     os.path.basename(image_repo_path))
+
+  @mock.patch('clusterfuzz_deployment.ClusterFuzzLite.upload_build',
+              return_value=True)
+  def test_upload_build_disabled(self, mock_upload_build):
+    """Test upload build (disabled)."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      builder = self._create_builder(tmp_dir)
+      builder.upload_build()
+
+    mock_upload_build.assert_not_called()
+
+  @mock.patch('repo_manager.RepoManager.get_current_commit',
+              return_value='commit')
+  @mock.patch('clusterfuzz_deployment.ClusterFuzzLite.upload_build',
+              return_value=True)
+  def test_upload_build(self, mock_upload_build, mock_get_current_commit):
+    """Test upload build."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      builder = self._create_builder(tmp_dir, oss_fuzz_project_name='')
+      builder.config.upload_build = True
+      builder.upload_build()
+
+    mock_upload_build.assert_called_with('commit')
+
+
+@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
+                 'INTEGRATION_TESTS=1 not set')
+class BuildFuzzersIntegrationTest(unittest.TestCase):
+  """Integration tests for build_fuzzers."""
+
+  def setUp(self):
+    self.temp_dir_ctx_manager = test_helpers.docker_temp_dir()
+    self.workspace = self.temp_dir_ctx_manager.__enter__()
+    self.out_dir = os.path.join(self.workspace, 'build-out')
+    test_helpers.patch_environ(self)
+
+    base_runner_path = os.path.join(INFRA_DIR, 'base-images', 'base-runner')
+    os.environ['PATH'] = os.environ['PATH'] + os.pathsep + base_runner_path
+
+  def tearDown(self):
+    self.temp_dir_ctx_manager.__exit__(None, None, None)
+
+  def test_external_github_project(self):
+    """Tests building fuzzers from an external project on Github."""
+    project_repo_name = 'external-project'
+    git_url = 'https://github.com/jonathanmetzman/cifuzz-external-example.git'
+    # This test is dependant on the state of
+    # github.com/jonathanmetzman/cifuzz-external-example.
+    config = test_helpers.create_build_config(
+        project_repo_name=project_repo_name,
+        workspace=self.workspace,
+        git_url=git_url,
+        git_sha='HEAD',
+        cfl_platform='github',
+        base_commit='HEAD^1')
+    self.assertTrue(build_fuzzers.build_fuzzers(config))
+    self.assertTrue(
+        os.path.exists(os.path.join(self.out_dir, EXAMPLE_BUILD_FUZZER)))
+
+  def test_external_generic_project(self):
+    """Tests building fuzzers from an external project not on Github."""
+    project_repo_name = 'cifuzz-external-example'
+    git_url = 'https://github.com/jonathanmetzman/cifuzz-external-example.git'
+    # This test is dependant on the state of
+    # github.com/jonathanmetzman/cifuzz-external-example.
+    manager = repo_manager.clone_repo_and_get_manager(
+        'https://github.com/jonathanmetzman/cifuzz-external-example',
+        self.workspace)
+    project_src_path = manager.repo_dir
+    config = test_helpers.create_build_config(
+        project_repo_name=project_repo_name,
+        workspace=self.workspace,
+        git_url=git_url,
+        filestore='no_filestore',
+        git_sha='HEAD',
+        project_src_path=project_src_path,
+        base_commit='HEAD^1')
+    self.assertTrue(build_fuzzers.build_fuzzers(config))
+    self.assertTrue(
+        os.path.exists(os.path.join(self.out_dir, EXAMPLE_BUILD_FUZZER)))
+
+  def test_valid_commit(self):
+    """Tests building fuzzers with valid inputs."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        project_repo_name='oss-fuzz',
+        workspace=self.workspace,
+        git_sha='0b95fe1039ed7c38fea1f97078316bfc1030c523',
+        base_commit='da0746452433dc18bae699e355a9821285d863c8',
+        cfl_platform='github')
+    self.assertTrue(build_fuzzers.build_fuzzers(config))
+    self.assertTrue(
+        os.path.exists(os.path.join(self.out_dir, EXAMPLE_BUILD_FUZZER)))
+
+  def test_valid_pull_request(self):
+    """Tests building fuzzers with valid pull request."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        project_repo_name='oss-fuzz',
+        workspace=self.workspace,
+        pr_ref='refs/pull/1757/merge',
+        base_ref='master',
+        cfl_platform='github')
+    self.assertTrue(build_fuzzers.build_fuzzers(config))
+    self.assertTrue(
+        os.path.exists(os.path.join(self.out_dir, EXAMPLE_BUILD_FUZZER)))
+
+  def test_invalid_pull_request(self):
+    """Tests building fuzzers with invalid pull request."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        project_repo_name='oss-fuzz',
+        workspace=self.workspace,
+        pr_ref='ref-1/merge',
+        base_ref='master',
+        cfl_platform='github')
+    self.assertTrue(build_fuzzers.build_fuzzers(config))
+
+  def test_invalid_oss_fuzz_project_name(self):
+    """Tests building fuzzers with invalid project name."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name='not_a_valid_project',
+        project_repo_name='oss-fuzz',
+        workspace=self.workspace,
+        git_sha='0b95fe1039ed7c38fea1f97078316bfc1030c523')
+    self.assertFalse(build_fuzzers.build_fuzzers(config))
+
+  def test_invalid_repo_name(self):
+    """Tests building fuzzers with invalid repo name."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        project_repo_name='not-real-repo',
+        workspace=self.workspace,
+        git_sha='0b95fe1039ed7c38fea1f97078316bfc1030c523')
+    self.assertFalse(build_fuzzers.build_fuzzers(config))
+
+  def test_invalid_git_sha(self):
+    """Tests building fuzzers with invalid commit SHA."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        project_repo_name='oss-fuzz',
+        workspace=self.workspace,
+        git_sha='',
+        cfl_platform='github')
+    with self.assertRaises(AssertionError):
+      build_fuzzers.build_fuzzers(config)
+
+  def test_invalid_workspace(self):
+    """Tests building fuzzers with invalid workspace."""
+    config = test_helpers.create_build_config(
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        project_repo_name='oss-fuzz',
+        workspace=os.path.join(self.workspace, 'not', 'a', 'dir'),
+        git_sha='0b95fe1039ed7c38fea1f97078316bfc1030c523')
+    self.assertFalse(build_fuzzers.build_fuzzers(config))
+
+
+class CheckFuzzerBuildTest(unittest.TestCase):
+  """Tests the check_fuzzer_build function in the cifuzz module."""
+
+  SANITIZER = 'address'
+  LANGUAGE = 'c++'
+
+  def setUp(self):
+    self.temp_dir_obj = tempfile.TemporaryDirectory()
+    workspace_path = os.path.join(self.temp_dir_obj.name, 'workspace')
+    self.config = test_helpers.create_build_config(
+        oss_fuzz_project_name=EXAMPLE_PROJECT,
+        sanitizer=self.SANITIZER,
+        language=self.LANGUAGE,
+        workspace=workspace_path,
+        pr_ref='refs/pull/1757/merge')
+    self.workspace = test_helpers.create_workspace(workspace_path)
+    shutil.copytree(TEST_DATA_PATH, workspace_path)
+    test_helpers.patch_environ(self, runner=True)
+
+  def tearDown(self):
+    self.temp_dir_obj.cleanup()
+
+  def test_correct_fuzzer_build(self):
+    """Checks check_fuzzer_build function returns True for valid fuzzers."""
+    self.assertTrue(build_fuzzers.check_fuzzer_build(self.config))
+
+  def test_not_a_valid_path(self):
+    """Tests that False is returned when a nonexistent path is given."""
+    self.config.workspace = 'not/a/valid/path'
+    self.assertFalse(build_fuzzers.check_fuzzer_build(self.config))
+
+  def test_no_valid_fuzzers(self):
+    """Tests that False is returned when an empty directory is given."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      self.config.workspace = tmp_dir
+      os.mkdir(os.path.join(self.config.workspace, 'build-out'))
+      self.assertFalse(build_fuzzers.check_fuzzer_build(self.config))
+
+  @mock.patch('utils.execute', return_value=(None, None, 0))
+  def test_allow_broken_fuzz_targets_percentage(self, mock_execute):
+    """Tests that ALLOWED_BROKEN_TARGETS_PERCENTAGE is set when running
+    docker if passed to check_fuzzer_build."""
+    percentage = '0'
+    self.config.allowed_broken_targets_percentage = percentage
+    build_fuzzers.check_fuzzer_build(self.config)
+    self.assertEqual(
+        mock_execute.call_args[1]['env']['ALLOWED_BROKEN_TARGETS_PERCENTAGE'],
+        percentage)
+
+
+@unittest.skip('Test is too long to be run with presubmit.')
+class BuildSantizerIntegrationTest(unittest.TestCase):
+  """Integration tests for the build_fuzzers.
+    Note: This test relies on "curl" being an OSS-Fuzz project."""
+  PROJECT_NAME = 'curl'
+  PR_REF = 'fake_pr'
+
+  @classmethod
+  def _create_config(cls, tmp_dir, sanitizer):
+    return test_helpers.create_build_config(
+        oss_fuzz_project_name=cls.PROJECT_NAME,
+        project_repo_name=cls.PROJECT_NAME,
+        workspace=tmp_dir,
+        pr_ref=cls.PR_REF,
+        sanitizer=sanitizer)
+
+  @parameterized.parameterized.expand([('memory',), ('undefined',)])
+  def test_valid_project_curl(self, sanitizer):
+    """Tests that MSAN can be detected from project.yaml"""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      self.assertTrue(
+          build_fuzzers.build_fuzzers(self._create_config(tmp_dir, sanitizer)))
+
+
+class GetDockerBuildFuzzersArgsNotContainerTest(unittest.TestCase):
+  """Tests that _get_docker_build_fuzzers_args_not_container works as
+  intended."""
+
+  def test_get_docker_build_fuzzers_args_no_container(self):
+    """Tests that _get_docker_build_fuzzers_args_not_container works
+    as intended."""
+    host_repo_path = '/host/repo'
+    result = build_fuzzers._get_docker_build_fuzzers_args_not_container(
+        host_repo_path)
+    expected_result = ['-v', '/host/repo:/host/repo']
+    self.assertEqual(result, expected_result)
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/cifuzz_combined_entrypoint.py

@@ -0,0 +1,40 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Builds fuzzers and runs fuzzers. Entrypoint used for external users"""
+import logging
+import sys
+
+import build_fuzzers_entrypoint
+import run_fuzzers_entrypoint
+
+
+def main():
+  """Builds and runs fuzzers for CI tools.
+
+  NOTE: Any crash report will be in the filepath: $WORKSPACE/out/testcase
+  This can be used with GitHub's upload-artifact action to surface the logs.
+
+  Required environment variables:
+  Returns:
+    0 on success or 1 on failure.
+  """
+  logging.debug("Using cifuzz_combined_entrypoint.")
+  result = build_fuzzers_entrypoint.build_fuzzers_entrypoint()
+  if result != 0:
+    return result
+  return run_fuzzers_entrypoint.run_fuzzers_entrypoint()
+
+
+if __name__ == '__main__':
+  sys.exit(main())

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/cifuzz_end_to_end_test.py

@@ -0,0 +1,48 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""End-to-End tests for CIFuzz."""
+import os
+import unittest
+
+import run_cifuzz
+import test_helpers
+
+CIFUZZ_DIR = os.path.dirname(os.path.abspath(__file__))
+EXTERNAL_PROJECT_PATH = os.path.join(CIFUZZ_DIR, 'test_data',
+                                     'external-project')
+
+
+# This test will fail if not run as root because the fuzzer build process
+# creates binaries that only root can write to.
+# Use a seperate env var to keep this seperate from integration tests which
+# don't have this annoying property.
+@unittest.skipIf(not os.getenv('END_TO_END_TESTS'),
+                 'END_TO_END_TESTS=1 not set')
+class EndToEndTest(unittest.TestCase):
+  """End-to-End tests for CIFuzz."""
+
+  def setUp(self):
+    test_helpers.patch_environ(self, runner=True)
+
+  def test_simple(self):
+    """Simple end-to-end test using run_cifuzz.main()."""
+    os.environ['REPOSITORY'] = 'external-project'
+    os.environ['PROJECT_SRC_PATH'] = EXTERNAL_PROJECT_PATH
+    os.environ['FILESTORE'] = 'no_filestore'
+    os.environ['NO_CLUSTERFUZZ_DEPLOYMENT'] = 'True'
+
+    with test_helpers.docker_temp_dir() as temp_dir:
+      os.environ['WORKSPACE'] = temp_dir
+      # TODO(metzman): Verify the crash, affected fuzzers, and other things.
+      self.assertEqual(run_cifuzz.main(), 1)

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/cloudbuild.yaml

@@ -0,0 +1,52 @@
+# TODO(metzman): Get rid of cifuzz-build-fuzzers and cifuzz-run-fuzzers.
+steps:
+- name: 'gcr.io/cloud-builders/docker'
+  args:
+  - build
+  - '-t'
+  - ghcr.io/aixcc-finals/cifuzz-base
+  - '-t'
+  - ghcr.io/aixcc-finals/cifuzz-base:v1
+  - '-f'
+  - infra/cifuzz/cifuzz-base/Dockerfile
+  - .
+- name: 'gcr.io/cloud-builders/docker'
+  args:
+  - build
+  - '-t'
+  - ghcr.io/aixcc-finals/cifuzz-build-fuzzers
+  - '-t'
+  - ghcr.io/aixcc-finals/cifuzz-build-fuzzers:v1
+  - '-t'
+  - ghcr.io/aixcc-finals/clusterfuzzlite-build-fuzzers
+  - '-t'
+  - ghcr.io/aixcc-finals/clusterfuzzlite-build-fuzzers:v1
+  - '-f'
+  - infra/build_fuzzers.Dockerfile
+  - infra
+- name: 'gcr.io/cloud-builders/docker'
+  args:
+  - build
+  - '-t'
+  - ghcr.io/aixcc-finals/cifuzz-run-fuzzers
+  - '-t'
+  - ghcr.io/aixcc-finals/cifuzz-run-fuzzers:v1
+  - '-t'
+  - ghcr.io/aixcc-finals/clusterfuzzlite-run-fuzzers
+  - '-t'
+  - ghcr.io/aixcc-finals/clusterfuzzlite-run-fuzzers:v1
+  - '-f'
+  - infra/run_fuzzers.Dockerfile
+  - infra
+images:
+- ghcr.io/aixcc-finals/cifuzz-base
+- ghcr.io/aixcc-finals/cifuzz-base:v1
+- ghcr.io/aixcc-finals/cifuzz-run-fuzzers
+- ghcr.io/aixcc-finals/cifuzz-run-fuzzers:v1
+- ghcr.io/aixcc-finals/cifuzz-build-fuzzers
+- ghcr.io/aixcc-finals/cifuzz-build-fuzzers:v1
+- ghcr.io/aixcc-finals/clusterfuzzlite-build-fuzzers
+- ghcr.io/aixcc-finals/clusterfuzzlite-build-fuzzers:v1
+- ghcr.io/aixcc-finals/clusterfuzzlite-run-fuzzers
+- ghcr.io/aixcc-finals/clusterfuzzlite-run-fuzzers:v1
+timeout: 1800s

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/clusterfuzz_deployment.py

@@ -0,0 +1,385 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for interacting with the ClusterFuzz deployment."""
+import logging
+import os
+import sys
+import urllib.error
+import urllib.request
+
+import config_utils
+import continuous_integration
+import filestore_utils
+import http_utils
+import get_coverage
+import repo_manager
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+import utils
+
+
+class BaseClusterFuzzDeployment:
+  """Base class for ClusterFuzz deployments."""
+
+  def __init__(self, config, workspace):
+    self.config = config
+    self.workspace = workspace
+    self.ci_system = continuous_integration.get_ci(config)
+
+  def download_latest_build(self):
+    """Downloads the latest build from ClusterFuzz.
+
+    Returns:
+      A path to where the OSS-Fuzz build was stored, or None if it wasn't.
+    """
+    raise NotImplementedError('Child class must implement method.')
+
+  def upload_build(self, commit):
+    """Uploads the build with the given commit sha to the filestore."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def download_corpus(self, target_name, corpus_dir):
+    """Downloads the corpus for |target_name| from ClusterFuzz to |corpus_dir|.
+
+    Returns:
+      A path to where the OSS-Fuzz build was stored, or None if it wasn't.
+    """
+    raise NotImplementedError('Child class must implement method.')
+
+  def upload_crashes(self):
+    """Uploads crashes in |crashes_dir| to filestore."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def upload_corpus(self, target_name, corpus_dir, replace=False):  # pylint: disable=no-self-use,unused-argument
+    """Uploads the corpus for |target_name| to filestore."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def upload_coverage(self):
+    """Uploads the coverage report to the filestore."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def get_coverage(self, repo_path):
+    """Returns the project coverage object for the project."""
+    raise NotImplementedError('Child class must implement method.')
+
+
+def _make_empty_dir_if_nonexistent(path):
+  """Makes an empty directory at |path| if it does not exist."""
+  os.makedirs(path, exist_ok=True)
+
+
+class ClusterFuzzLite(BaseClusterFuzzDeployment):
+  """Class representing a deployment of ClusterFuzzLite."""
+
+  COVERAGE_NAME = 'latest'
+  LATEST_BUILD_WINDOW = 3
+
+  def __init__(self, config, workspace):
+    super().__init__(config, workspace)
+    self.filestore = filestore_utils.get_filestore(self.config)
+
+  def download_latest_build(self):
+    if os.path.exists(self.workspace.clusterfuzz_build):
+      # This path is necessary because download_latest_build can be called
+      # multiple times.That is the case because it is called only when we need
+      # to see if a bug is novel, i.e. until we want to check a bug is novel we
+      # don't want to waste time calling this, but therefore this method can be
+      # called if multiple bugs are found.
+      return self.workspace.clusterfuzz_build
+
+    repo_dir = self.ci_system.repo_dir
+    if not repo_dir:
+      raise RuntimeError('Repo checkout does not exist.')
+
+    _make_empty_dir_if_nonexistent(self.workspace.clusterfuzz_build)
+    repo = repo_manager.RepoManager(repo_dir)
+
+    diff_base = self.ci_system.get_diff_base()
+    if not diff_base:
+      diff_base = 'HEAD^'
+
+    # Builds are stored by commit, so try the latest |LATEST_BUILD_WINDOW|
+    # commits before the current diff base.
+    # TODO(ochang): If API usage becomes an issue, this can be optimized by the
+    # filestore accepting a list of filenames to try.
+    try:
+      # TODO(metzman): Why do we default to 'origin', we should avoid going down
+      # this path entirely and not need to catch an exception.
+      commit_list = repo.get_commit_list(diff_base,
+                                         limit=self.LATEST_BUILD_WINDOW)
+    except ValueError as error:
+      logging.error('Can\'t get commit list: %s', error)
+      return None
+
+    for old_commit in commit_list:
+      logging.info('Trying to downloading previous build %s.', old_commit)
+      build_name = self._get_build_name(old_commit)
+      try:
+        if self.filestore.download_build(build_name,
+                                         self.workspace.clusterfuzz_build):
+          logging.info('Done downloading previous build.')
+          return self.workspace.clusterfuzz_build
+
+        logging.info('Build for %s does not exist.', old_commit)
+      except Exception as err:  # pylint: disable=broad-except
+        logging.error('Could not download build for %s because of: %s',
+                      old_commit, err)
+
+    return None
+
+  def download_corpus(self, target_name, corpus_dir):
+    _make_empty_dir_if_nonexistent(corpus_dir)
+    logging.info('Downloading corpus for %s to %s.', target_name, corpus_dir)
+    corpus_name = self._get_corpus_name(target_name)
+    try:
+      self.filestore.download_corpus(corpus_name, corpus_dir)
+      logging.info('Done downloading corpus. Contains %d elements.',
+                   len(os.listdir(corpus_dir)))
+    except Exception as err:  # pylint: disable=broad-except
+      logging.error('Failed to download corpus for target: %s. Error: %s',
+                    target_name, str(err))
+    return corpus_dir
+
+  def _get_build_name(self, name):
+    return f'{self.config.sanitizer}-{name}'
+
+  def _get_corpus_name(self, target_name):  # pylint: disable=no-self-use
+    """Returns the name of the corpus artifact."""
+    return target_name
+
+  def upload_corpus(self, target_name, corpus_dir, replace=False):
+    """Upload the corpus produced by |target_name|."""
+    logging.info('Uploading corpus in %s for %s.', corpus_dir, target_name)
+    name = self._get_corpus_name(target_name)
+    try:
+      self.filestore.upload_corpus(name, corpus_dir, replace=replace)
+      logging.info('Done uploading corpus.')
+    except Exception as err:  # pylint: disable=broad-except
+      logging.error('Failed to upload corpus for target: %s. Error: %s.',
+                    target_name, err)
+
+  def upload_build(self, commit):
+    """Upload the build produced by CIFuzz as the latest build."""
+    logging.info('Uploading latest build in %s.', self.workspace.out)
+    build_name = self._get_build_name(commit)
+    try:
+      result = self.filestore.upload_build(build_name, self.workspace.out)
+      logging.info('Done uploading latest build.')
+      return result
+    except Exception as err:  # pylint: disable=broad-except
+      logging.error('Failed to upload latest build: %s. Error: %s',
+                    self.workspace.out, err)
+
+  def upload_crashes(self):
+    """Uploads crashes."""
+    artifact_dirs = os.listdir(self.workspace.artifacts)
+    if not artifact_dirs:
+      logging.info('No crashes in %s. Not uploading.', self.workspace.artifacts)
+      return
+
+    for crash_target in artifact_dirs:
+      artifact_dir = os.path.join(self.workspace.artifacts, crash_target)
+      if not os.path.isdir(artifact_dir):
+        logging.warning('%s is not an expected artifact directory, skipping.',
+                        crash_target)
+        continue
+
+      logging.info('Uploading crashes in %s.', artifact_dir)
+      try:
+        self.filestore.upload_crashes(crash_target, artifact_dir)
+        logging.info('Done uploading crashes.')
+      except Exception as err:  # pylint: disable=broad-except
+        logging.error('Failed to upload crashes. Error: %s', err)
+
+  def upload_coverage(self):
+    """Uploads the coverage report to the filestore."""
+    self.filestore.upload_coverage(self.COVERAGE_NAME,
+                                   self.workspace.coverage_report)
+
+  def get_coverage(self, repo_path):
+    """Returns the project coverage object for the project."""
+    _make_empty_dir_if_nonexistent(self.workspace.clusterfuzz_coverage)
+    try:
+      if not self.filestore.download_coverage(
+          self.COVERAGE_NAME, self.workspace.clusterfuzz_coverage):
+        logging.error('Could not download coverage.')
+        return None
+      return get_coverage.FilesystemCoverage(
+          repo_path, self.workspace.clusterfuzz_coverage)
+    except Exception as err:  # pylint: disable=broad-except
+      logging.error('Could not get coverage: %s.', err)
+      return None
+
+
+class OSSFuzz(BaseClusterFuzzDeployment):
+  """The OSS-Fuzz ClusterFuzz deployment."""
+
+  # Location of clusterfuzz builds on GCS.
+  CLUSTERFUZZ_BUILDS = 'clusterfuzz-builds'
+
+  # Zip file name containing the corpus.
+  CORPUS_ZIP_NAME = 'public.zip'
+
+  def get_latest_build_name(self):
+    """Gets the name of the latest OSS-Fuzz build of a project.
+
+    Returns:
+      A string with the latest build version or None.
+    """
+    version_file = (
+        f'{self.config.oss_fuzz_project_name}-{self.config.sanitizer}'
+        '-latest.version')
+    version_url = utils.url_join(utils.GCS_BASE_URL, self.CLUSTERFUZZ_BUILDS,
+                                 self.config.oss_fuzz_project_name,
+                                 version_file)
+    try:
+      response = urllib.request.urlopen(version_url)
+    except urllib.error.HTTPError:
+      logging.error('Error getting latest build version for %s from: %s.',
+                    self.config.oss_fuzz_project_name, version_url)
+      return None
+    return response.read().decode()
+
+  def download_latest_build(self):
+    """Downloads the latest OSS-Fuzz build from GCS.
+
+    Returns:
+      A path to where the OSS-Fuzz build was stored, or None if it wasn't.
+    """
+    if os.path.exists(self.workspace.clusterfuzz_build):
+      # This function can be called multiple times, don't download the build
+      # again.
+      return self.workspace.clusterfuzz_build
+
+    _make_empty_dir_if_nonexistent(self.workspace.clusterfuzz_build)
+
+    latest_build_name = self.get_latest_build_name()
+    if not latest_build_name:
+      return None
+
+    logging.info('Downloading latest build.')
+    oss_fuzz_build_url = utils.url_join(utils.GCS_BASE_URL,
+                                        self.CLUSTERFUZZ_BUILDS,
+                                        self.config.oss_fuzz_project_name,
+                                        latest_build_name)
+    if http_utils.download_and_unpack_zip(oss_fuzz_build_url,
+                                          self.workspace.clusterfuzz_build):
+      logging.info('Done downloading latest build.')
+      return self.workspace.clusterfuzz_build
+
+    return None
+
+  def upload_build(self, commit):  # pylint: disable=no-self-use
+    """Noop Implementation of upload_build."""
+    logging.info('Not uploading latest build because on OSS-Fuzz.')
+
+  def upload_corpus(self, target_name, corpus_dir, replace=False):  # pylint: disable=no-self-use,unused-argument
+    """Noop Implementation of upload_corpus."""
+    logging.info('Not uploading corpus because on OSS-Fuzz.')
+
+  def upload_crashes(self):  # pylint: disable=no-self-use
+    """Noop Implementation of upload_crashes."""
+    logging.info('Not uploading crashes because on OSS-Fuzz.')
+
+  def download_corpus(self, target_name, corpus_dir):
+    """Downloads the latest OSS-Fuzz corpus for the target.
+
+    Returns:
+      The local path to to corpus or None if download failed.
+    """
+    _make_empty_dir_if_nonexistent(corpus_dir)
+    project_qualified_fuzz_target_name = target_name
+    qualified_name_prefix = self.config.oss_fuzz_project_name + '_'
+    if not target_name.startswith(qualified_name_prefix):
+      project_qualified_fuzz_target_name = qualified_name_prefix + target_name
+
+    corpus_url = (f'{utils.GCS_BASE_URL}{self.config.oss_fuzz_project_name}'
+                  '-backup.clusterfuzz-external.appspot.com/corpus/'
+                  f'libFuzzer/{project_qualified_fuzz_target_name}/'
+                  f'{self.CORPUS_ZIP_NAME}')
+    logging.info('Downloading corpus from OSS-Fuzz: %s', corpus_url)
+
+    if not http_utils.download_and_unpack_zip(corpus_url, corpus_dir):
+      logging.warning('Failed to download corpus for %s.', target_name)
+    return corpus_dir
+
+  def upload_coverage(self):
+    """Noop Implementation of upload_coverage_report."""
+    logging.info('Not uploading coverage report because on OSS-Fuzz.')
+
+  def get_coverage(self, repo_path):
+    """Returns the project coverage object for the project."""
+    try:
+      return get_coverage.OSSFuzzCoverage(repo_path,
+                                          self.config.oss_fuzz_project_name)
+    except get_coverage.CoverageError:
+      return None
+
+
+class NoClusterFuzzDeployment(BaseClusterFuzzDeployment):
+  """ClusterFuzzDeployment implementation used when there is no deployment of
+  ClusterFuzz to use."""
+
+  def upload_build(self, commit):  # pylint: disable=no-self-use
+    """Noop Implementation of upload_build."""
+    logging.info('Not uploading latest build because no ClusterFuzz '
+                 'deployment.')
+
+  def upload_corpus(self, target_name, corpus_dir, replace=False):  # pylint: disable=no-self-use,unused-argument
+    """Noop Implementation of upload_corpus."""
+    logging.info('Not uploading corpus because no ClusterFuzz deployment.')
+
+  def upload_crashes(self):  # pylint: disable=no-self-use
+    """Noop Implementation of upload_crashes."""
+    logging.info('Not uploading crashes because no ClusterFuzz deployment.')
+
+  def download_corpus(self, target_name, corpus_dir):
+    """Noop Implementation of download_corpus."""
+    logging.info('Not downloading corpus because no ClusterFuzz deployment.')
+    return _make_empty_dir_if_nonexistent(corpus_dir)
+
+  def download_latest_build(self):  # pylint: disable=no-self-use
+    """Noop Implementation of download_latest_build."""
+    logging.info(
+        'Not downloading latest build because no ClusterFuzz deployment.')
+
+  def upload_coverage(self):
+    """Noop Implementation of upload_coverage."""
+    logging.info(
+        'Not uploading coverage report because no ClusterFuzz deployment.')
+
+  def get_coverage(self, repo_path):
+    """Noop Implementation of get_coverage."""
+    logging.info(
+        'Not getting project coverage because no ClusterFuzz deployment.')
+
+
+_PLATFORM_CLUSTERFUZZ_DEPLOYMENT_MAPPING = {
+    config_utils.BaseConfig.Platform.INTERNAL_GENERIC_CI: OSSFuzz,
+    config_utils.BaseConfig.Platform.INTERNAL_GITHUB: OSSFuzz,
+    config_utils.BaseConfig.Platform.EXTERNAL_GENERIC_CI: ClusterFuzzLite,
+    config_utils.BaseConfig.Platform.EXTERNAL_GITHUB: ClusterFuzzLite,
+}
+
+
+def get_clusterfuzz_deployment(config, workspace):
+  """Returns object reprsenting deployment of ClusterFuzz used by |config|."""
+  deployment_cls = _PLATFORM_CLUSTERFUZZ_DEPLOYMENT_MAPPING[config.platform]
+  if config.no_clusterfuzz_deployment:
+    logging.info('Overriding ClusterFuzzDeployment. Using None.')
+    deployment_cls = NoClusterFuzzDeployment
+  result = deployment_cls(config, workspace)
+  logging.info('ClusterFuzzDeployment: %s.', result)
+  return result

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/clusterfuzz_deployment_test.py

@@ -0,0 +1,268 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for clusterfuzz_deployment.py"""
+
+import os
+import unittest
+from unittest import mock
+
+import parameterized
+from pyfakefs import fake_filesystem_unittest
+
+import clusterfuzz_deployment
+import config_utils
+import test_helpers
+import workspace_utils
+
+# NOTE: This integration test relies on
+# https://github.com/google/oss-fuzz/tree/master/projects/example project.
+EXAMPLE_PROJECT = 'example'
+
+# An example fuzzer that triggers an error.
+EXAMPLE_FUZZER = 'example_crash_fuzzer'
+
+WORKSPACE = '/workspace'
+EXPECTED_LATEST_BUILD_PATH = os.path.join(WORKSPACE, 'cifuzz-prev-build')
+
+# pylint: disable=unused-argument
+
+
+def _create_config(**kwargs):
+  """Creates a config object and then sets every attribute that is a key in
+  |kwargs| to the corresponding value. Asserts that each key in |kwargs| is an
+  attribute of Config."""
+  defaults = {
+      'cfl_platform': 'github',
+      'oss_fuzz_project_name': EXAMPLE_PROJECT,
+      'workspace': WORKSPACE,
+  }
+  for default_key, default_value in defaults.items():
+    if default_key not in kwargs:
+      kwargs[default_key] = default_value
+
+  return test_helpers.create_run_config(**kwargs)
+
+
+def _create_deployment(**kwargs):
+  config = _create_config(**kwargs)
+  workspace = workspace_utils.Workspace(config)
+  return clusterfuzz_deployment.get_clusterfuzz_deployment(config, workspace)
+
+
+class OSSFuzzTest(fake_filesystem_unittest.TestCase):
+  """Tests OSSFuzz."""
+
+  def setUp(self):
+    self.setUpPyfakefs()
+    self.deployment = _create_deployment()
+    self.corpus_dir = os.path.join(self.deployment.workspace.corpora,
+                                   EXAMPLE_FUZZER)
+
+  @mock.patch('http_utils.download_and_unpack_zip', return_value=True)
+  def test_download_corpus(self, mock_download_and_unpack_zip):
+    """Tests that we can download a corpus for a valid project."""
+    self.deployment.download_corpus(EXAMPLE_FUZZER, self.corpus_dir)
+    expected_url = ('https://storage.googleapis.com/example-backup.'
+                    'clusterfuzz-external.appspot.com/corpus/libFuzzer/'
+                    'example_crash_fuzzer/public.zip')
+    call_args, _ = mock_download_and_unpack_zip.call_args
+    self.assertEqual(call_args, (expected_url, self.corpus_dir))
+    self.assertTrue(os.path.exists(self.corpus_dir))
+
+  @mock.patch('http_utils.download_and_unpack_zip', return_value=False)
+  def test_download_corpus_fail(self, _):
+    """Tests that when downloading fails, an empty corpus directory is still
+    returned."""
+    self.deployment.download_corpus(EXAMPLE_FUZZER, self.corpus_dir)
+    self.assertEqual(os.listdir(self.corpus_dir), [])
+
+  def test_get_latest_build_name(self):
+    """Tests that the latest build name can be retrieved from GCS."""
+    latest_build_name = self.deployment.get_latest_build_name()
+    self.assertTrue(latest_build_name.endswith('.zip'))
+    self.assertTrue('address' in latest_build_name)
+
+  @parameterized.parameterized.expand([
+      ('upload_build', ('commit',),
+       'Not uploading latest build because on OSS-Fuzz.'),
+      ('upload_corpus', ('target', 'corpus-dir'),
+       'Not uploading corpus because on OSS-Fuzz.'),
+      ('upload_crashes', tuple(), 'Not uploading crashes because on OSS-Fuzz.'),
+  ])
+  def test_noop_methods(self, method, method_args, expected_message):
+    """Tests that certain methods are noops for OSS-Fuzz."""
+    with mock.patch('logging.info') as mock_info:
+      method = getattr(self.deployment, method)
+      self.assertIsNone(method(*method_args))
+      mock_info.assert_called_with(expected_message)
+
+  @mock.patch('http_utils.download_and_unpack_zip', return_value=True)
+  def test_download_latest_build(self, mock_download_and_unpack_zip):
+    """Tests that downloading the latest build works as intended under normal
+    circumstances."""
+    self.assertEqual(self.deployment.download_latest_build(),
+                     EXPECTED_LATEST_BUILD_PATH)
+    expected_url = ('https://storage.googleapis.com/clusterfuzz-builds/example/'
+                    'example-address-202008030600.zip')
+    mock_download_and_unpack_zip.assert_called_with(expected_url,
+                                                    EXPECTED_LATEST_BUILD_PATH)
+
+  @mock.patch('http_utils.download_and_unpack_zip', return_value=False)
+  def test_download_latest_build_fail(self, _):
+    """Tests that download_latest_build returns None when it fails to download a
+    build."""
+    self.assertIsNone(self.deployment.download_latest_build())
+
+
+class ClusterFuzzLiteTest(fake_filesystem_unittest.TestCase):
+  """Tests for ClusterFuzzLite."""
+
+  def setUp(self):
+    self.setUpPyfakefs()
+    self.deployment = _create_deployment(mode='batch',
+                                         oss_fuzz_project_name='',
+                                         cloud_bucket='gs://bucket')
+    self.corpus_dir = os.path.join(self.deployment.workspace.corpora,
+                                   EXAMPLE_FUZZER)
+
+  @mock.patch('filestore.github_actions.GithubActionsFilestore.download_corpus',
+              return_value=True)
+  def test_download_corpus(self, mock_download_corpus):
+    """Tests that download_corpus works for a valid project."""
+    self.deployment.download_corpus(EXAMPLE_FUZZER, self.corpus_dir)
+    mock_download_corpus.assert_called_with('example_crash_fuzzer',
+                                            self.corpus_dir)
+    self.assertTrue(os.path.exists(self.corpus_dir))
+
+  @mock.patch('filestore.github_actions.GithubActionsFilestore.download_corpus',
+              side_effect=Exception)
+  def test_download_corpus_fail(self, _):
+    """Tests that when downloading fails, an empty corpus directory is still
+    returned."""
+    self.deployment.download_corpus(EXAMPLE_FUZZER, self.corpus_dir)
+    self.assertEqual(os.listdir(self.corpus_dir), [])
+
+  @mock.patch('filestore.github_actions.GithubActionsFilestore.download_build',
+              side_effect=[False, True])
+  @mock.patch('repo_manager.RepoManager.get_commit_list',
+              return_value=['commit1', 'commit2'])
+  @mock.patch('continuous_integration.GithubCiMixin.repo_dir',
+              return_value='/path/to/repo')
+  def test_download_latest_build(self, mock_repo_dir, mock_get_commit_list,
+                                 mock_download_build):
+    """Tests that downloading the latest build works as intended under normal
+    circumstances."""
+    self.assertEqual(self.deployment.download_latest_build(),
+                     EXPECTED_LATEST_BUILD_PATH)
+    expected_artifact_name = 'address-commit2'
+    mock_download_build.assert_called_with(expected_artifact_name,
+                                           EXPECTED_LATEST_BUILD_PATH)
+
+  @mock.patch('filestore.github_actions.GithubActionsFilestore.download_build',
+              side_effect=Exception)
+  @mock.patch('repo_manager.RepoManager.get_commit_list',
+              return_value=['commit1', 'commit2'])
+  @mock.patch('continuous_integration.GithubCiMixin.repo_dir',
+              return_value='/path/to/repo')
+  def test_download_latest_build_fail(self, mock_repo_dir, mock_get_commit_list,
+                                      _):
+    """Tests that download_latest_build returns None when it fails to download a
+    build."""
+    self.assertIsNone(self.deployment.download_latest_build())
+
+  @mock.patch('filestore.github_actions.GithubActionsFilestore.upload_build')
+  def test_upload_build(self, mock_upload_build):
+    """Tests that upload_build works as intended."""
+    self.deployment.upload_build('commit')
+    mock_upload_build.assert_called_with('address-commit',
+                                         '/workspace/build-out')
+
+
+class NoClusterFuzzDeploymentTest(fake_filesystem_unittest.TestCase):
+  """Tests for NoClusterFuzzDeployment."""
+
+  def setUp(self):
+    self.setUpPyfakefs()
+    config = test_helpers.create_run_config(workspace=WORKSPACE,
+                                            cfl_platform='other',
+                                            filestore='no_filestore',
+                                            no_clusterfuzz_deployment=True)
+    workspace = workspace_utils.Workspace(config)
+    self.deployment = clusterfuzz_deployment.get_clusterfuzz_deployment(
+        config, workspace)
+
+    self.corpus_dir = os.path.join(workspace.corpora, EXAMPLE_FUZZER)
+
+  @mock.patch('logging.info')
+  def test_download_corpus(self, mock_info):
+    """Tests that download corpus returns the path to the empty corpus
+    directory."""
+    self.deployment.download_corpus(EXAMPLE_FUZZER, self.corpus_dir)
+    mock_info.assert_called_with(
+        'Not downloading corpus because no ClusterFuzz deployment.')
+    self.assertTrue(os.path.exists(self.corpus_dir))
+
+  @parameterized.parameterized.expand([
+      ('upload_build', ('commit',),
+       'Not uploading latest build because no ClusterFuzz deployment.'),
+      ('upload_corpus', ('target', 'corpus-dir'),
+       'Not uploading corpus because no ClusterFuzz deployment.'),
+      ('upload_crashes', tuple(),
+       'Not uploading crashes because no ClusterFuzz deployment.'),
+      ('download_latest_build', tuple(),
+       'Not downloading latest build because no ClusterFuzz deployment.')
+  ])
+  def test_noop_methods(self, method, method_args, expected_message):
+    """Tests that certain methods are noops for NoClusterFuzzDeployment."""
+    with mock.patch('logging.info') as mock_info:
+      method = getattr(self.deployment, method)
+      self.assertIsNone(method(*method_args))
+      mock_info.assert_called_with(expected_message)
+
+
+class GetClusterFuzzDeploymentTest(unittest.TestCase):
+  """Tests for get_clusterfuzz_deployment."""
+
+  def setUp(self):
+    test_helpers.patch_environ(self)
+    os.environ['GITHUB_REPOSITORY'] = 'owner/myproject'
+
+  @parameterized.parameterized.expand([
+      (config_utils.BaseConfig.Platform.INTERNAL_GENERIC_CI,
+       clusterfuzz_deployment.OSSFuzz),
+      (config_utils.BaseConfig.Platform.INTERNAL_GITHUB,
+       clusterfuzz_deployment.OSSFuzz),
+      (config_utils.BaseConfig.Platform.EXTERNAL_GENERIC_CI,
+       clusterfuzz_deployment.ClusterFuzzLite),
+      (config_utils.BaseConfig.Platform.EXTERNAL_GITHUB,
+       clusterfuzz_deployment.ClusterFuzzLite),
+  ])
+  def test_get_clusterfuzz_deployment(self, platform, expected_deployment_cls):
+    """Tests that get_clusterfuzz_deployment returns the correct value."""
+    with mock.patch('config_utils.BaseConfig.platform',
+                    return_value=platform,
+                    new_callable=mock.PropertyMock):
+      with mock.patch('filestore_utils.get_filestore', return_value=None):
+        with mock.patch('platform_config.github._get_event_data',
+                        return_value={}):
+          config = _create_config()
+          workspace = workspace_utils.Workspace(config)
+
+          self.assertIsInstance(
+              clusterfuzz_deployment.get_clusterfuzz_deployment(
+                  config, workspace), expected_deployment_cls)
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/config_utils.py

@@ -0,0 +1,283 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for getting the configuration CIFuzz needs to run."""
+
+import enum
+import importlib
+import logging
+import os
+import sys
+
+import environment
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import platform_config
+import constants
+
+SANITIZERS = ['address', 'memory', 'undefined', 'coverage']
+
+# TODO(metzman): Set these on config objects so there's one source of truth.
+DEFAULT_ENGINE = 'libfuzzer'
+
+# This module deals a lot with env variables. Many of these will be set by users
+# and others beyond CIFuzz's control. Thus, you should be careful about using
+# the environment.py helpers for getting env vars, since it can cause values
+# that should be interpreted as strings to be returned as other types (bools or
+# ints for example). The environment.py helpers should not be used for values
+# that are supposed to be strings.
+
+
+def _get_sanitizer():
+  return os.getenv('SANITIZER', constants.DEFAULT_SANITIZER).lower()
+
+
+def _get_architecture():
+  return os.getenv('ARCHITECTURE', constants.DEFAULT_ARCHITECTURE).lower()
+
+
+def _is_dry_run():
+  """Returns True if configured to do a dry run."""
+  return environment.get_bool('DRY_RUN', False)
+
+
+def _get_language():
+  """Returns the project language."""
+  # Get language from environment. We took this approach because the convenience
+  # given to OSS-Fuzz users by not making them specify the language again (and
+  # getting it from the project.yaml) is outweighed by the complexity in
+  # implementing this. A lot of the complexity comes from our unittests not
+  # setting a proper projet at this point.
+  return os.getenv('LANGUAGE', constants.DEFAULT_LANGUAGE)
+
+
+def _get_extra_environment_variables():
+  """Gets extra environment variables specified by the user with
+  CFL_EXTRA_$NAME=$VALUE."""
+  return [key for key in os.environ if key.startswith('CFL_EXTRA_')]
+
+
+# pylint: disable=too-many-instance-attributes
+
+
+class ConfigError(Exception):
+  """Error for invalid configuration."""
+
+
+class BaseConfig:
+  """Object containing constant configuration for CIFuzz."""
+
+  class Platform(enum.Enum):
+    """Enum representing the different platforms CIFuzz runs on."""
+    EXTERNAL_GITHUB = 0  # Non-OSS-Fuzz on GitHub actions.
+    INTERNAL_GITHUB = 1  # OSS-Fuzz on GitHub actions.
+    INTERNAL_GENERIC_CI = 2  # OSS-Fuzz on any CI.
+    EXTERNAL_GENERIC_CI = 3  # Non-OSS-Fuzz on any CI.
+
+  @property
+  def is_github(self):
+    """Returns True if running on GitHub."""
+    return self.cfl_platform == 'github'
+
+  def __init__(self):
+    # Need to set these before calling self.platform.
+    self.oss_fuzz_project_name = os.getenv('OSS_FUZZ_PROJECT_NAME')
+    self.cfl_platform = os.getenv('CFL_PLATFORM')
+    logging.debug('Is github: %s.', self.is_github)
+
+    self.platform_conf = _get_platform_config(self.cfl_platform)
+    self.base_commit = self.platform_conf.base_commit
+    self.base_ref = self.platform_conf.base_ref
+    self.pr_ref = self.platform_conf.pr_ref
+    self.workspace = self.platform_conf.workspace
+    self.project_src_path = self.platform_conf.project_src_path
+    self.actor = self.platform_conf.actor
+    self.token = self.platform_conf.token
+    self.project_repo_owner = self.platform_conf.project_repo_owner
+    self.project_repo_name = self.platform_conf.project_repo_name
+    self.filestore = self.platform_conf.filestore
+
+    # This determines if builds are done using docker in docker
+    # rather than the normal method which is sibling containers.
+    self.docker_in_docker = self.platform_conf.docker_in_docker
+
+    self.dry_run = _is_dry_run()  # Check if failures should not be reported.
+    self.sanitizer = _get_sanitizer()
+    self.architecture = _get_architecture()
+    self.language = _get_language()
+    self.low_disk_space = environment.get_bool('LOW_DISK_SPACE', False)
+
+    self.git_store_repo = os.environ.get('GIT_STORE_REPO')
+    self.git_store_branch = os.environ.get('GIT_STORE_BRANCH')
+    self.git_store_branch_coverage = os.environ.get('GIT_STORE_BRANCH_COVERAGE',
+                                                    self.git_store_branch)
+    self.cloud_bucket = os.environ.get('CLOUD_BUCKET')
+    self.no_clusterfuzz_deployment = environment.get_bool(
+        'NO_CLUSTERFUZZ_DEPLOYMENT', False)
+    self.build_integration_path = (
+        constants.DEFAULT_EXTERNAL_BUILD_INTEGRATION_PATH)
+
+    self.parallel_fuzzing = environment.get_bool('PARALLEL_FUZZING', False)
+    self.extra_environment_variables = _get_extra_environment_variables()
+    self.output_sarif = environment.get_bool('OUTPUT_SARIF', False)
+
+    # TODO(metzman): Fix tests to create valid configurations and get rid of
+    # CIFUZZ_TEST here and in presubmit.py.
+    if not os.getenv('CIFUZZ_TEST') and not self.validate():
+      raise ConfigError('Invalid Configuration.')
+
+  def validate(self):
+    """Returns False if the configuration is invalid."""
+    # Do validation here so that unittests don't need to make a fully-valid
+    # config.
+    # pylint: disable=too-many-return-statements
+    if not self.workspace:
+      logging.error('Must set WORKSPACE.')
+      return False
+
+    if self.sanitizer not in SANITIZERS:
+      logging.error('Invalid SANITIZER: %s. Must be one of: %s.',
+                    self.sanitizer, SANITIZERS)
+      return False
+
+    if self.architecture not in constants.ARCHITECTURES:
+      logging.error('Invalid ARCHITECTURE: %s. Must be one of: %s.',
+                    self.architecture, constants.ARCHITECTURES)
+      return False
+
+    if self.architecture == 'i386' and self.sanitizer != 'address':
+      logging.error(
+          'ARCHITECTURE=i386 can be used with SANITIZER=address only.')
+      return False
+
+    if self.language not in constants.LANGUAGES:
+      logging.error('Invalid LANGUAGE: %s. Must be one of: %s.', self.language,
+                    constants.LANGUAGES)
+      return False
+
+    if not self.project_repo_name:
+      logging.error('Must set REPOSITORY.')
+      return False
+
+    return True
+
+  @property
+  def is_internal(self):
+    """Returns True if this is an OSS-Fuzz project."""
+    return bool(self.oss_fuzz_project_name)
+
+  @property
+  def platform(self):
+    """Returns the platform CIFuzz is runnning on."""
+    if not self.is_internal:
+      if not self.is_github:
+        return self.Platform.EXTERNAL_GENERIC_CI
+      return self.Platform.EXTERNAL_GITHUB
+
+    if self.is_github:
+      return self.Platform.INTERNAL_GITHUB
+    return self.Platform.INTERNAL_GENERIC_CI
+
+  @property
+  def is_coverage(self):
+    """Returns True if this CIFuzz run (building fuzzers and running them) for
+    generating a coverage report."""
+    return self.sanitizer == 'coverage'
+
+
+def _get_platform_config(cfl_platform):
+  """Returns the CI environment object for |cfl_platform|."""
+  module_name = f'platform_config.{cfl_platform}'
+  try:
+    cls = importlib.import_module(module_name).PlatformConfig
+  except ImportError:
+    cls = platform_config.BasePlatformConfig
+  return cls()
+
+
+class RunFuzzersConfig(BaseConfig):
+  """Class containing constant configuration for running fuzzers in CIFuzz."""
+
+  MODES = ['batch', 'code-change', 'coverage', 'prune']
+
+  def __init__(self):
+    super().__init__()
+    # TODO(metzman): Pick a better default for pruning.
+    self.fuzz_seconds = int(os.environ.get('FUZZ_SECONDS', 600))
+    self.mode = os.environ.get('MODE', 'code-change').lower()
+    if self.is_coverage:
+      self.mode = 'coverage'
+
+    self.report_unreproducible_crashes = environment.get_bool(
+        'REPORT_UNREPRODUCIBLE_CRASHES', False)
+
+    self.minimize_crashes = environment.get_bool('MINIMIZE_CRASHES', False)
+    if self.mode == 'batch':
+      logging.warning(
+          'Minimizing crashes reduces fuzzing time in batch fuzzing.')
+    self.report_timeouts = environment.get_bool('REPORT_TIMEOUTS', False)
+    self.report_ooms = environment.get_bool('REPORT_OOMS', True)
+    self.upload_all_crashes = environment.get_bool('UPLOAD_ALL_CRASHES', False)
+
+    # TODO(metzman): Fix tests to create valid configurations and get rid of
+    # CIFUZZ_TEST here and in presubmit.py.
+    if not os.getenv('CIFUZZ_TEST') and not self._run_config_validate():
+      raise ConfigError('Invalid Run Configuration.')
+
+  def _run_config_validate(self):
+    """Do extra validation on RunFuzzersConfig.__init__(). Do not name this
+    validate or else it will be called when using the parent's __init__ and will
+    fail. Returns True if valid."""
+    if self.mode not in self.MODES:
+      logging.error('Invalid MODE: %s. Must be one of %s.', self.mode,
+                    self.MODES)
+      return False
+
+    return True
+
+
+class BuildFuzzersConfig(BaseConfig):
+  """Class containing constant configuration for building fuzzers in CIFuzz."""
+
+  def __init__(self):
+    """Get the configuration from CIFuzz from the environment. These variables
+    are set by GitHub or the user."""
+    super().__init__()
+    self.git_sha = self.platform_conf.git_sha
+    self.git_url = self.platform_conf.git_url
+
+    self.allowed_broken_targets_percentage = os.getenv(
+        'ALLOWED_BROKEN_TARGETS_PERCENTAGE')
+    self.bad_build_check = environment.get_bool('BAD_BUILD_CHECK', True)
+
+    self.keep_unaffected_fuzz_targets = environment.get_bool(
+        'KEEP_UNAFFECTED_FUZZ_TARGETS')
+
+    self.upload_build = environment.get_bool('UPLOAD_BUILD', False)
+    if not self.keep_unaffected_fuzz_targets:
+      has_base_for_diff = (self.base_ref or self.base_commit)
+      if not has_base_for_diff:
+        logging.info(
+            'Keeping all fuzzers because there is nothing to diff against.')
+        self.keep_unaffected_fuzz_targets = True
+      elif self.upload_build:
+        logging.info('Keeping all fuzzers because we are uploading build.')
+        self.keep_unaffected_fuzz_targets = True
+      elif self.sanitizer == 'coverage':
+        logging.info('Keeping all fuzzers because we are doing coverage.')
+        self.keep_unaffected_fuzz_targets = True
+
+    if self.sanitizer == 'coverage':
+      self.bad_build_check = False

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/config_utils_test.py

@@ -0,0 +1,200 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for config_utils."""
+import os
+import unittest
+from unittest import mock
+
+import config_utils
+import constants
+import test_helpers
+
+# pylint: disable=no-self-use,protected-access
+
+
+class BaseConfigTest(unittest.TestCase):
+  """Tests for BaseConfig."""
+
+  def setUp(self):
+    test_helpers.patch_environ(self)
+
+  def _create_config(self):
+    return config_utils.BuildFuzzersConfig()
+
+  def test_language_default(self):
+    """Tests that the correct default language is set."""
+    config = self._create_config()
+    self.assertEqual(config.language, 'c++')
+
+  def test_language(self):
+    """Tests that the correct language is set."""
+    language = 'python'
+    os.environ['LANGUAGE'] = language
+    config = self._create_config()
+    self.assertEqual(config.language, language)
+
+  def test_is_coverage(self):
+    """Tests that is_coverage is set correctly."""
+    # Test it is set when it is supposed to be.
+    os.environ['SANITIZER'] = 'coverage'
+    config = self._create_config()
+    self.assertTrue(config.is_coverage)
+
+    # Test it is not set when it is not supposed to be.
+    os.environ['SANITIZER'] = 'address'
+    config = self._create_config()
+    self.assertFalse(config.is_coverage)
+
+  @mock.patch('logging.error')
+  def test_validate_no_workspace(self, mock_error):
+    """Tests that validate returns False if GITHUB_WORKSPACE isn't set."""
+    os.environ['OSS_FUZZ_PROJECT_NAME'] = 'example'
+    config = self._create_config()
+    self.assertFalse(config.validate())
+    mock_error.assert_called_with('Must set WORKSPACE.')
+
+  @mock.patch('logging.error')
+  def test_validate_invalid_language(self, mock_error):
+    """Tests that validate returns False if GITHUB_WORKSPACE isn't set."""
+    os.environ['OSS_FUZZ_PROJECT_NAME'] = 'example'
+    os.environ['WORKSPACE'] = '/workspace'
+    os.environ['LANGUAGE'] = 'invalid-language'
+    config = self._create_config()
+    self.assertFalse(config.validate())
+    mock_error.assert_called_with('Invalid LANGUAGE: %s. Must be one of: %s.',
+                                  os.environ['LANGUAGE'], constants.LANGUAGES)
+
+  @mock.patch('logging.error')
+  def test_validate_invalid_sanitizer(self, mock_error):
+    """Tests that validate returns False if GITHUB_WORKSPACE isn't set."""
+    os.environ['OSS_FUZZ_PROJECT_NAME'] = 'example'
+    os.environ['WORKSPACE'] = '/workspace'
+    os.environ['SANITIZER'] = 'invalid-sanitizer'
+    config = self._create_config()
+    self.assertFalse(config.validate())
+    mock_error.assert_called_with('Invalid SANITIZER: %s. Must be one of: %s.',
+                                  os.environ['SANITIZER'],
+                                  config_utils.SANITIZERS)
+
+  def test_validate(self):
+    """Tests that validate returns True if config is valid."""
+    os.environ['OSS_FUZZ_PROJECT_NAME'] = 'example'
+    os.environ['WORKSPACE'] = '/workspace'
+    os.environ['REPOSITORY'] = 'repo'
+    config = self._create_config()
+    self.assertTrue(config.validate())
+
+
+class BuildFuzzersConfigTest(unittest.TestCase):
+  """Tests for BuildFuzzersConfig."""
+
+  def setUp(self):
+    test_helpers.patch_environ(self)
+
+  def _create_config(self):
+    return config_utils.BuildFuzzersConfig()
+
+  @mock.patch('platform_config.github._get_event_data', return_value={})
+  def test_github_base_ref(self, _):
+    """Tests that base_ref is set properly."""
+    expected_base_ref = 'expected_base_ref'
+    os.environ['GITHUB_BASE_REF'] = expected_base_ref
+    os.environ['CFL_PLATFORM'] = 'github'
+    os.environ['GITHUB_REPOSITORY'] = 'owner/repo'
+    config = self._create_config()
+    self.assertEqual(config.base_ref, expected_base_ref)
+
+  def test_base_ref(self):
+    """Tests that base_ref is set properly."""
+    expected_base_ref = 'expected_base_ref'
+    os.environ['GIT_BASE_REF'] = expected_base_ref
+    config = self._create_config()
+    self.assertEqual(config.base_ref, expected_base_ref)
+
+  def test_keep_unaffected_defaults_to_true(self):
+    """Tests that keep_unaffected_fuzz_targets defaults to true."""
+    config = self._create_config()
+    self.assertTrue(config.keep_unaffected_fuzz_targets)
+
+  def test_keep_unaffected_defaults_to_false_when_pr(self):
+    """Tests that keep_unaffected_fuzz_targets defaults to false when from a
+    pr."""
+    os.environ['GIT_BASE_REF'] = 'base-ref'
+    config = self._create_config()
+    self.assertFalse(config.keep_unaffected_fuzz_targets)
+
+
+class RunFuzzersConfigTest(unittest.TestCase):
+  """Tests for RunFuzzersConfig."""
+
+  def setUp(self):
+    test_helpers.patch_environ(self)
+
+  def _create_config(self):
+    return config_utils.RunFuzzersConfig()
+
+  def test_coverage(self):
+    """Tests that mode is overriden properly based on is_coverage."""
+    # Test that it is overriden when it is supposed to be.
+    os.environ['SANITIZER'] = 'coverage'
+    os.environ['MODE'] = 'code-change'
+    config = self._create_config()
+    self.assertEqual(config.mode, 'coverage')
+
+    # Test that it isn't overriden when it isn't supposed to be.
+    os.environ['SANITIZER'] = 'address'
+    mode = 'code-change'
+    os.environ['MODE'] = mode
+    config = self._create_config()
+    self.assertEqual(config.mode, mode)
+
+  def test_run_config_validate(self):
+    """Tests that _run_config_validate returns True when the config is valid."""
+    self.assertTrue(self._create_config()._run_config_validate())
+
+  @mock.patch('logging.error')
+  def test_run_config_invalid_mode(self, mock_error):
+    """Tests that _run_config_validate returns False when mode is invalid."""
+    fake_mode = 'fake-mode'
+    os.environ['MODE'] = fake_mode
+    self.assertFalse(self._create_config()._run_config_validate())
+    mock_error.assert_called_with('Invalid MODE: %s. Must be one of %s.',
+                                  fake_mode,
+                                  config_utils.RunFuzzersConfig.MODES)
+
+
+class GetSanitizerTest(unittest.TestCase):
+  """Tests for _get_sanitizer."""
+
+  def setUp(self):
+    test_helpers.patch_environ(self)
+    self.sanitizer = 'memory'
+
+  def test_default_value(self):
+    """Tests that the default value returned by _get_sanitizer is correct."""
+    self.assertEqual(config_utils._get_sanitizer(), 'address')
+
+  def test_normal_case(self):
+    """Tests that _get_sanitizer returns the correct value in normal cases."""
+    os.environ['SANITIZER'] = self.sanitizer
+    self.assertEqual(config_utils._get_sanitizer(), self.sanitizer)
+
+  def test_capitalization(self):
+    """Tests that that _get_sanitizer handles capitalization properly."""
+    os.environ['SANITIZER'] = self.sanitizer.upper()
+    self.assertEqual(config_utils._get_sanitizer(), self.sanitizer)
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/continuous_integration.py

@@ -0,0 +1,375 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Implementations for various CI systems."""
+
+import os
+import collections
+import sys
+import logging
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+import build_specified_commit
+import docker
+import helper
+import repo_manager
+import retry
+import utils
+import workspace_utils
+
+# pylint: disable=too-few-public-methods
+
+BuildPreparationResult = collections.namedtuple(
+    'BuildPreparationResult', ['success', 'image_repo_path', 'repo_manager'])
+
+_IMAGE_BUILD_TRIES = 3
+_IMAGE_BUILD_BACKOFF = 2
+
+
+def fix_git_repo_for_diff(repo_manager_obj):
+  """Fixes git repos cloned by the "checkout" action so that diffing works on
+  them."""
+  command = [
+      'git', 'symbolic-ref', 'refs/remotes/origin/HEAD',
+      'refs/remotes/origin/master'
+  ]
+  return utils.execute(command, location=repo_manager_obj.repo_dir)
+
+
+class BaseCi:
+  """Class representing common CI functionality."""
+
+  def __init__(self, config):
+    self.config = config
+    self.workspace = workspace_utils.Workspace(config)
+    self._repo_dir = None
+
+  @property
+  def repo_dir(self):
+    """Returns the source repo path, if it has been checked out. None is
+    returned otherwise."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def prepare_for_fuzzer_build(self):
+    """Builds the fuzzer builder image and gets the source code we need to
+    fuzz."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def get_diff_base(self):
+    """Returns the base to diff against with git to get the change under
+    test."""
+    if self.config.base_ref:
+      logging.debug('Diffing against base_ref: %s.', self.config.base_ref)
+      return self.config.base_ref
+    if self.config.base_commit:
+      logging.debug('Diffing against base_commit: %s.', self.config.base_commit)
+      return self.config.base_commit
+    # TODO(metzman): Do we want this at all? What purpose does it serve? I guess
+    # it is a decent fallback when there is no base_commit or base_ref.
+    logging.debug('Diffing against origin.')
+    return 'origin'
+
+  def get_changed_code_under_test(self, repo_manager_obj):
+    """Returns the changed files that need to be tested."""
+    if self.config.base_ref:
+      repo_manager_obj.fetch_branch(self.config.base_ref)
+    fix_git_repo_for_diff(repo_manager_obj)
+    base = self.get_diff_base()
+    logging.info('Diffing against %s.', base)
+    # git diff <commit>... is equivalent to
+    # git diff $(git merge-base <commit> HEAD)
+    return repo_manager_obj.get_git_diff(base + '...')
+
+  def get_build_command(self, host_repo_path, image_repo_path):
+    """Returns the command for building the project that is run inside the
+    project builder container."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def _build_external_project_docker_image(self, manager):
+    """Helper for child classes that builds an external project's docker image.
+    Returns a BuildPreparationResult indicating failure or success."""
+    build_integration_abs_path = os.path.join(
+        manager.repo_dir, self.config.build_integration_path)
+    if not build_external_project_docker_image(manager.repo_dir,
+                                               build_integration_abs_path):
+      logging.error('Failed to build external project.')
+      return get_build_preparation_failure()
+    image_repo_path = os.path.join('/src', self.config.project_repo_name)
+    return BuildPreparationResult(success=True,
+                                  image_repo_path=image_repo_path,
+                                  repo_manager=manager)
+
+  def _make_repo_storage_dir(self):
+    os.makedirs(self.workspace.repo_storage, exist_ok=True)
+
+  def _clone_repo_and_checkout(self, repo_url, repo_name):
+    """Helper for child classes that clones the git repo specified by |repo_url|
+    to |repo_name|, checks out the specified commit, and returns the
+    |manager|."""
+    self._make_repo_storage_dir()
+    # Checkout project's repo in the shared volume.
+    manager = repo_manager.clone_repo_and_get_manager(
+        repo_url,
+        self.workspace.repo_storage,
+        repo_name=repo_name,
+        username=self.config.actor,
+        password=self.config.token)
+    self._checkout_specified_commit(manager)
+    return manager
+
+  def _checkout_specified_commit(self, manager):
+    checkout_specified_commit(manager, self.config.pr_ref, self.config.git_sha)
+
+  def _detect_main_repo(self):
+    """Helper for child classes that detects the main repo and returns a tuple
+    containing the inffered url and path to the repo in the image."""
+    inferred_url, image_repo_path = build_specified_commit.detect_main_repo(
+        self.config.oss_fuzz_project_name,
+        repo_name=self.config.project_repo_name)
+    if not inferred_url or not image_repo_path:
+      logging.error('Could not detect repo.')
+    return inferred_url, image_repo_path
+
+  def _create_repo_manager_for_project_src_path(self):
+    """Returns a repo manager for |project_src_path|."""
+    return repo_manager.RepoManager(self.config.project_src_path)
+
+
+def get_build_command():
+  """Returns the command to build the project inside the project builder
+  container."""
+  return 'compile'
+
+
+def get_replace_repo_and_build_command(host_repo_path, image_repo_path):
+  """Returns the command to replace the repo located at |image_repo_path| with
+  |host_repo_path| and build the project inside the project builder
+  container."""
+  rm_path = os.path.join(image_repo_path, '*')
+  image_src_path = os.path.dirname(image_repo_path)
+  build_command = get_build_command()
+  command = (f'cd / && rm -rf {rm_path} && cp -r {host_repo_path} '
+             f'{image_src_path} && cd - && {build_command}')
+  return command
+
+
+def get_ci(config):
+  """Determines what kind of CI is being used and returns the object
+  representing that system."""
+
+  if config.platform == config.Platform.EXTERNAL_GENERIC_CI:
+    # Non-OSS-Fuzz projects must bring their own source and their own build
+    # integration (which is relative to that source).
+    return ExternalGeneric(config)
+  if config.platform == config.Platform.EXTERNAL_GITHUB:
+    # Non-OSS-Fuzz projects must bring their own source and their own build
+    # integration (which is relative to that source).
+    return ExternalGithub(config)
+
+  if config.platform == config.Platform.INTERNAL_GENERIC_CI:
+    # Builds of OSS-Fuzz projects not hosted on Github must bring their own
+    # source since the checkout logic CIFuzz implements is github-specific.
+    # TODO(metzman): Consider moving Github-actions builds of OSS-Fuzz projects
+    # to this system to reduce implementation complexity.
+    return InternalGeneric(config)
+
+  return InternalGithub(config)
+
+
+def checkout_specified_commit(repo_manager_obj, pr_ref, git_sha):
+  """Checks out the specified commit or pull request using
+  |repo_manager_obj|."""
+  try:
+    if pr_ref:
+      repo_manager_obj.checkout_pr(pr_ref)
+    else:
+      repo_manager_obj.checkout_commit(git_sha)
+  except (RuntimeError, ValueError):
+    logging.error(
+        'Can not check out requested state %s. '
+        'Using current repo state.', pr_ref or git_sha)
+
+
+class GithubCiMixin:
+  """Mixin for Github based CI systems."""
+
+  def __init__(self, config):
+    super().__init__(config)
+    # Unlike in other classes, here _repo_dir is the parent directory of the
+    # repo, not its actual directory.
+    self._repo_dir = self.workspace.repo_storage
+
+  @property
+  def repo_dir(self):
+    """Returns the source repo path, if it has been checked out. None is
+    returned otherwise."""
+    if not os.path.exists(self._repo_dir):
+      logging.warning('Repo dir: %s does not exist.', self._repo_dir)
+      return None
+
+    # Note: this assumes there is only one repo checked out here.
+    listing = os.listdir(self._repo_dir)
+    if len(listing) != 1:
+      raise RuntimeError('Invalid repo directory.')
+
+    repo_path = os.path.join(self._repo_dir, listing[0])
+    if not os.path.isdir(repo_path):
+      raise RuntimeError('Repo is not a directory.')
+
+    return repo_path
+
+
+class InternalGithub(GithubCiMixin, BaseCi):
+  """Class representing CI for an OSS-Fuzz project on Github Actions."""
+
+  def _copy_repo_from_image(self, image_repo_path):
+    self._make_repo_storage_dir()
+    repo_name = os.path.basename(image_repo_path)
+    host_repo_path = os.path.join(self._repo_dir, repo_name)
+    bash_command = f'cp -r {image_repo_path} {host_repo_path}'
+    docker_args, _ = docker.get_base_docker_run_args(
+        self.workspace, self.config.sanitizer, self.config.language,
+        self.config.architecture, self.config.docker_in_docker)
+    docker_args.extend([
+        docker.get_project_image_name(self.config.oss_fuzz_project_name),
+        '/bin/bash', '-c', bash_command
+    ])
+    if not helper.docker_run(docker_args):
+      raise RuntimeError('Failed to copy repo.')
+    return repo_manager.RepoManager(host_repo_path)
+
+  def prepare_for_fuzzer_build(self):
+    """Builds the fuzzer builder image, checks out the pull request/commit and
+    returns the BuildPreparationResult."""
+    logging.info('InternalGithub: preparing for fuzzer build.')
+    assert self.config.pr_ref or self.config.git_sha
+    # _detect_main_repo builds the image as a side effect.
+    _, image_repo_path = self._detect_main_repo()
+    if not image_repo_path:
+      return get_build_preparation_failure()
+
+    # Use the same name used in the docker image so we can overwrite it.
+    manager = self._copy_repo_from_image(image_repo_path)
+    self._checkout_specified_commit(manager)
+    return BuildPreparationResult(success=True,
+                                  image_repo_path=image_repo_path,
+                                  repo_manager=manager)
+
+  def get_build_command(self, host_repo_path, image_repo_path):  # pylint: disable=no-self-use
+    """Returns the command for building the project that is run inside the
+    project builder container. Command also replaces |image_repo_path| with
+    |host_repo_path|."""
+    return get_replace_repo_and_build_command(host_repo_path, image_repo_path)
+
+
+def get_build_preparation_failure():
+  """Returns a BuildPreparationResult indicating failure."""
+  return BuildPreparationResult(success=False,
+                                image_repo_path=None,
+                                repo_manager=None)
+
+
+class InternalGeneric(BaseCi):
+  """Class representing CI for an OSS-Fuzz project on a CI other than Github
+  actions."""
+
+  def __init__(self, config):
+    super().__init__(config)
+    self._repo_dir = config.project_src_path
+
+  @property
+  def repo_dir(self):
+    """Returns the source repo path, if it has been checked out. None is
+    returned otherwise."""
+    return self._repo_dir
+
+  def prepare_for_fuzzer_build(self):
+    """Builds the project builder image for an OSS-Fuzz project outside of
+    GitHub actions. Returns the repo_manager. Does not checkout source code
+    since external projects are expected to bring their own source code to
+    CIFuzz."""
+    logging.info('InternalGeneric: preparing for fuzzer build.')
+    # detect_main_repo builds the image as a side effect.
+    _, image_repo_path = self._detect_main_repo()
+
+    if not image_repo_path:
+      return get_build_preparation_failure()
+
+    manager = self._create_repo_manager_for_project_src_path()
+    return BuildPreparationResult(success=True,
+                                  image_repo_path=image_repo_path,
+                                  repo_manager=manager)
+
+  def get_build_command(self, host_repo_path, image_repo_path):  # pylint: disable=no-self-use
+    """Returns the command for building the project that is run inside the
+    project builder container. Command also replaces |image_repo_path| with
+    |host_repo_path|."""
+    return get_replace_repo_and_build_command(host_repo_path, image_repo_path)
+
+
+@retry.wrap(_IMAGE_BUILD_TRIES, _IMAGE_BUILD_BACKOFF)
+def build_external_project_docker_image(project_src, build_integration_path):
+  """Builds the project builder image for an external (non-OSS-Fuzz) project.
+  Returns True on success."""
+  dockerfile_path = os.path.join(build_integration_path, 'Dockerfile')
+  command = [
+      '-t', docker.EXTERNAL_PROJECT_IMAGE, '-f', dockerfile_path, project_src
+  ]
+  return helper.docker_build(command)
+
+
+class ExternalGeneric(BaseCi):
+  """CI implementation for generic CI for external (non-OSS-Fuzz) projects."""
+
+  def __init__(self, config):
+    super().__init__(config)
+    self._repo_dir = config.project_src_path
+
+  @property
+  def repo_dir(self):
+    """Returns the source repo path, if it has been checked out. None is
+    returned otherwise."""
+    return self._repo_dir
+
+  def prepare_for_fuzzer_build(self):
+    logging.info('ExternalGeneric: preparing for fuzzer build.')
+    manager = self._create_repo_manager_for_project_src_path()
+    return self._build_external_project_docker_image(manager)
+
+  def get_build_command(self, host_repo_path, image_repo_path):  # pylint: disable=no-self-use
+    """Returns the command for building the project that is run inside the
+    project builder container."""
+    return get_build_command()
+
+
+class ExternalGithub(GithubCiMixin, BaseCi):
+  """Class representing CI for a non-OSS-Fuzz project on Github Actions."""
+
+  def prepare_for_fuzzer_build(self):
+    """Builds the project builder image for a non-OSS-Fuzz project on GitHub
+    actions. Sets the repo manager. Does not checkout source code since external
+    projects are expected to bring their own source code to CIFuzz. Returns True
+    on success."""
+    logging.info('ExternalGithub: preparing for fuzzer build.')
+    # Checkout before building, so we don't need to rely on copying the source
+    # from the image.
+    # TODO(metzman): Figure out if we want second copy at all.
+    manager = self._clone_repo_and_checkout(self.config.git_url,
+                                            self.config.project_repo_name)
+    return self._build_external_project_docker_image(manager)
+
+  def get_build_command(self, host_repo_path, image_repo_path):  # pylint: disable=no-self-use
+    """Returns the command for building the project that is run inside the
+    project builder container."""
+    return get_build_command()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/continuous_integration_test.py

@@ -0,0 +1,88 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for continuous_integration_module."""
+import os
+import sys
+import unittest
+from unittest import mock
+
+import continuous_integration
+import docker
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import repo_manager
+
+# pylint: disable=no-self-use
+
+
+class FixGitRepoForDiffTest(unittest.TestCase):
+  """Tests for fix_git_repo_for_diff."""
+
+  @mock.patch('utils.execute')
+  def test_fix_git_repo_for_diff(self, mock_execute):
+    """Tests that fix_git_repo_for_diff works as intended."""
+    repo_dir = '/dir'
+    repo_manager_obj = repo_manager.RepoManager(repo_dir)
+    continuous_integration.fix_git_repo_for_diff(repo_manager_obj)
+    expected_command = [
+        'git', 'symbolic-ref', 'refs/remotes/origin/HEAD',
+        'refs/remotes/origin/master'
+    ]
+
+    mock_execute.assert_called_with(expected_command, location=repo_dir)
+
+
+class GetBuildCommand(unittest.TestCase):
+  """Tests for get_build_command."""
+
+  def test_build_command(self):
+    """Tests that get_build_command works as intended."""
+    self.assertEqual(continuous_integration.get_build_command(), 'compile')
+
+
+class GetReplaceRepoAndBuildCommand(unittest.TestCase):
+  """Tests for get_replace_repo_and_build_command."""
+
+  def test_get_replace_repo_and_build_command(self):
+    """Tests that get_replace_repo_and_build_command works as intended."""
+    host_repo_path = '/path/on/host/to/repo'
+    image_repo_path = '/src/repo'
+    command = continuous_integration.get_replace_repo_and_build_command(
+        host_repo_path, image_repo_path)
+    expected_command = ('cd / && rm -rf /src/repo/* && '
+                        'cp -r /path/on/host/to/repo /src && cd - '
+                        '&& compile')
+    self.assertEqual(command, expected_command)
+
+
+class BuildExternalProjetDockerImage(unittest.TestCase):
+  """Tests for build_external_project_docker_image."""
+
+  @mock.patch('helper.docker_build')
+  def test_build_external_project_docker_image(self, mock_docker_build):
+    """Tests that build_external_project_docker_image works as intended."""
+    build_integration_path = '.clusterfuzzlite'
+    project_src = '/path/to/project/src'
+    continuous_integration.build_external_project_docker_image(
+        project_src, build_integration_path)
+
+    mock_docker_build.assert_called_with([
+        '-t', docker.EXTERNAL_PROJECT_IMAGE, '-f',
+        os.path.join('.clusterfuzzlite', 'Dockerfile'), project_src
+    ])
+
+
+# TODO(metzman): Write tests for the rest of continuous_integration.py.

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/docker.py

@@ -0,0 +1,127 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for dealing with docker."""
+import logging
+import os
+import sys
+import uuid
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import constants
+import utils
+import environment
+
+BASE_BUILDER_TAG = 'ghcr.io/aixcc-finals/base-builder'
+PROJECT_TAG_PREFIX = 'gcr.io/oss-fuzz/'
+
+# Default fuzz configuration.
+_DEFAULT_DOCKER_RUN_ARGS = [
+    '-e', 'FUZZING_ENGINE=' + constants.DEFAULT_ENGINE, '-e', 'CIFUZZ=True'
+]
+
+UNIQUE_ID_SUFFIX = '-' + uuid.uuid4().hex
+
+# TODO(metzman): Make run_fuzzers able to delete this image.
+EXTERNAL_PROJECT_IMAGE = 'external-cfl-project' + UNIQUE_ID_SUFFIX
+
+_DEFAULT_DOCKER_RUN_COMMAND = [
+    'docker',
+    'run',
+    '--rm',
+    '--privileged',
+]
+
+
+def get_docker_env_vars(env_mapping):
+  """Returns a list of docker arguments that sets each key in |env_mapping| as
+  an env var and the value of that key in |env_mapping| as the value."""
+  env_var_args = []
+  for env_var, env_var_val in env_mapping.items():
+    env_var_args.extend(['-e', f'{env_var}={env_var_val}'])
+  return env_var_args
+
+
+def get_project_image_name(project):
+  """Returns the name of the project builder image for |project_name|."""
+  # TODO(jonathanmetzman): We may need unique names to support parallel fuzzing
+  # for CIFuzz (like CFL supports). Don't do this for now because no one has
+  # asked for it and build_specified_commit would need to be modified to support
+  # this.
+  if project:
+    return PROJECT_TAG_PREFIX + project
+
+  return EXTERNAL_PROJECT_IMAGE
+
+
+def delete_images(images):
+  """Deletes |images|."""
+  command = ['docker', 'rmi', '-f'] + images
+  utils.execute(command)
+  utils.execute(['docker', 'builder', 'prune', '-f'])
+
+
+def get_base_docker_run_args(workspace,
+                             sanitizer=constants.DEFAULT_SANITIZER,
+                             language=constants.DEFAULT_LANGUAGE,
+                             architecture=constants.DEFAULT_ARCHITECTURE,
+                             docker_in_docker=False):
+  """Returns arguments that should be passed to every invocation of 'docker
+  run'."""
+  docker_args = _DEFAULT_DOCKER_RUN_ARGS.copy()
+  env_mapping = {
+      'SANITIZER': sanitizer,
+      'ARCHITECTURE': architecture,
+      'FUZZING_LANGUAGE': language,
+      'OUT': workspace.out
+  }
+  docker_args += get_docker_env_vars(env_mapping)
+  docker_container = environment.get('CFL_CONTAINER_ID',
+                                     utils.get_container_name())
+  logging.info('Docker container: %s.', docker_container)
+  if docker_container and not docker_in_docker:
+    # Don't map specific volumes if in a docker container, it breaks when
+    # running a sibling container.
+    docker_args += ['--volumes-from', docker_container]
+  else:
+    docker_args += _get_args_mapping_host_path_to_container(workspace.workspace)
+  return docker_args, docker_container
+
+
+def get_base_docker_run_command(workspace,
+                                sanitizer=constants.DEFAULT_SANITIZER,
+                                language=constants.DEFAULT_LANGUAGE,
+                                architecture=constants.DEFAULT_ARCHITECTURE,
+                                docker_in_docker=False):
+  """Returns part of the command that should be used everytime 'docker run' is
+  invoked."""
+  docker_args, docker_container = get_base_docker_run_args(
+      workspace,
+      sanitizer,
+      language,
+      architecture,
+      docker_in_docker=docker_in_docker)
+  command = _DEFAULT_DOCKER_RUN_COMMAND.copy() + docker_args
+  return command, docker_container
+
+
+def _get_args_mapping_host_path_to_container(host_path, container_path=None):
+  """Get arguments to docker run that will map |host_path| a path on the host to
+  a path in the container. If |container_path| is specified, that path is mapped
+  to. If not, then |host_path| is mapped to itself in the container."""
+  # WARNING: Do not use this function when running in production (and
+  # --volumes-from) is used for mapping volumes. It will break production.
+  container_path = host_path if container_path is None else container_path
+  return ['-v', f'{host_path}:{container_path}']

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/docker_test.py

@@ -0,0 +1,119 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests the functionality of the docker module."""
+import unittest
+from unittest import mock
+
+import docker
+import test_helpers
+import workspace_utils
+
+CONTAINER_NAME = 'example-container'
+config = test_helpers.create_run_config(oss_fuzz_project_name='project',
+                                        workspace='/workspace')
+config.workspace = '/workspace'
+WORKSPACE = workspace_utils.Workspace(config)
+SANITIZER = 'example-sanitizer'
+LANGUAGE = 'example-language'
+
+
+class GetProjectImageTest(unittest.TestCase):
+  """Tests for get_project_image."""
+
+  def test_get_project_image(self):
+    """Tests that get_project_image_name works as intended."""
+    project = 'my-project'
+    self.assertEqual(docker.get_project_image_name(project),
+                     'gcr.io/oss-fuzz/my-project')
+
+
+class GetDeleteImagesTest(unittest.TestCase):
+  """Tests for delete_images."""
+
+  @mock.patch('utils.execute')
+  def test_delete_images(self, mock_execute):  # pylint: disable=no-self-use
+    """Tests that get_project_image_name works as intended."""
+    images = ['image']
+    docker.delete_images(images)
+    expected_calls = [
+        mock.call(['docker', 'rmi', '-f'] + images),
+        mock.call(['docker', 'builder', 'prune', '-f'])
+    ]
+
+    mock_execute.assert_has_calls(expected_calls)
+
+
+class GetBaseDockerRunArgsTest(unittest.TestCase):
+  """Tests get_base_docker_run_args."""
+
+  @mock.patch('utils.get_container_name', return_value=CONTAINER_NAME)
+  def test_get_base_docker_run_args_container(self, _):
+    """Tests that get_base_docker_run_args works as intended when inside a
+    container."""
+    docker_args, docker_container = docker.get_base_docker_run_args(
+        WORKSPACE, SANITIZER, LANGUAGE)
+    self.assertEqual(docker_container, CONTAINER_NAME)
+    expected_docker_args = []
+    expected_docker_args = [
+        '-e',
+        'FUZZING_ENGINE=libfuzzer',
+        '-e',
+        'CIFUZZ=True',
+        '-e',
+        f'SANITIZER={SANITIZER}',
+        '-e',
+        'ARCHITECTURE=x86_64',
+        '-e',
+        f'FUZZING_LANGUAGE={LANGUAGE}',
+        '-e',
+        f'OUT={WORKSPACE.out}',
+        '--volumes-from',
+        CONTAINER_NAME,
+    ]
+    self.assertEqual(docker_args, expected_docker_args)
+
+  @mock.patch('utils.get_container_name', return_value=None)
+  def test_get_base_docker_run_args_no_container(self, _):
+    """Tests that get_base_docker_run_args works as intended when not inside a
+    container."""
+    docker_args, docker_container = docker.get_base_docker_run_args(
+        WORKSPACE, SANITIZER, LANGUAGE)
+    self.assertEqual(docker_container, None)
+    expected_docker_args = [
+        '-e', 'FUZZING_ENGINE=libfuzzer', '-e', 'CIFUZZ=True', '-e',
+        f'SANITIZER={SANITIZER}', '-e', 'ARCHITECTURE=x86_64', '-e',
+        f'FUZZING_LANGUAGE={LANGUAGE}', '-e', f'OUT={WORKSPACE.out}', '-v',
+        f'{WORKSPACE.workspace}:{WORKSPACE.workspace}'
+    ]
+    self.assertEqual(docker_args, expected_docker_args)
+
+
+class GetBaseDockerRunCommandTest(unittest.TestCase):
+  """Tests get_base_docker_run_args."""
+
+  @mock.patch('utils.get_container_name', return_value=None)
+  def test_get_base_docker_run_command_no_container(self, _):
+    """Tests that get_base_docker_run_args works as intended when not inside a
+    container."""
+    docker_args, docker_container = docker.get_base_docker_run_command(
+        WORKSPACE, SANITIZER, LANGUAGE)
+    self.assertEqual(docker_container, None)
+    expected_docker_command = [
+        'docker', 'run', '--rm', '--privileged', '-e',
+        'FUZZING_ENGINE=libfuzzer', '-e', 'CIFUZZ=True', '-e',
+        f'SANITIZER={SANITIZER}', '-e', 'ARCHITECTURE=x86_64', '-e',
+        f'FUZZING_LANGUAGE={LANGUAGE}', '-e', f'OUT={WORKSPACE.out}', '-v',
+        f'{WORKSPACE.workspace}:{WORKSPACE.workspace}'
+    ]
+    self.assertEqual(docker_args, expected_docker_command)

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/environment.py

@@ -0,0 +1,51 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for dealing with env vars."""
+
+import ast
+import os
+
+
+def _eval_value(value_string):
+  """Returns evaluated value."""
+  try:
+    return ast.literal_eval(value_string)
+  except:  # pylint: disable=bare-except
+    # String fallback.
+    return value_string
+
+
+def get(env_var, default_value=None):
+  """Returns an environment variable value."""
+  value_string = os.getenv(env_var)
+  if value_string is None:
+    return default_value
+
+  return _eval_value(value_string)
+
+
+def get_bool(env_var, default_value=None):
+  """Returns a boolean environment variable value. This is needed because a lot
+  of CIFuzz users specified 'false' for dry-run. So we need to special case
+  this."""
+  value = get(env_var, default_value)
+  if not isinstance(value, str):
+    return bool(value)
+
+  lower_value = value.lower()
+  allowed_values = {'true', 'false'}
+  if lower_value not in allowed_values:
+    raise Exception(f'Bool env var {env_var} value {value} is invalid. '
+                    f'Must be one of {allowed_values}.')
+  return lower_value == 'true'

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/example_cifuzz.yml

@@ -0,0 +1,33 @@
+name: CIFuzz
+on: [pull_request]
+permissions: {}
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+    steps:
+    - name: Build Fuzzers
+      id: build
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'example'
+    - name: Run Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'example'
+        fuzz-seconds: 600
+        output-sarif: true
+    - name: Upload Crash
+      uses: actions/upload-artifact@v3
+      if: failure() && steps.build.outcome == 'success'
+      with:
+        name: artifacts
+        path: ./out/artifacts   
+    - name: Upload Sarif
+      if: always() && steps.build.outcome == 'success'
+      uses: github/codeql-action/upload-sarif@v2
+      with:
+        # Path to SARIF file relative to the root of the repository
+        sarif_file: cifuzz-sarif/results.sarif
+        checkout_path: cifuzz-sarif

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/filestore_utils.py

@@ -0,0 +1,48 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""External filestore interface. Cannot be depended on by filestore code."""
+import filestore
+import filestore.filesystem
+import filestore.git
+import filestore.github_actions
+import filestore.gsutil
+import filestore.no_filestore
+import filestore.gitlab
+
+FILESTORE_MAPPING = {
+    'filesystem': filestore.filesystem.FilesystemFilestore,
+    'gsutil': filestore.gsutil.GSUtilFilestore,
+    'github-actions': filestore.github_actions.GithubActionsFilestore,
+    'git': filestore.git.GitFilestore,
+    # TODO(metzman): Change to "no-filestore"
+    'no_filestore': filestore.no_filestore.NoFilestore,
+    'gitlab': filestore.gitlab.GitlabFilestore,
+}
+
+
+def get_filestore(config):
+  """Returns the correct filestore object based on the platform in |config|.
+  Raises an exception if there is no correct filestore for the platform."""
+  if config.platform == config.Platform.EXTERNAL_GITHUB:
+    ci_filestore = filestore.github_actions.GithubActionsFilestore(config)
+    if not config.git_store_repo:
+      return ci_filestore
+
+    return filestore.git.GitFilestore(config, ci_filestore)
+
+  filestore_cls = FILESTORE_MAPPING.get(config.filestore)
+  if filestore_cls is None:
+    raise filestore.FilestoreError(
+        f'Filestore: {config.filestore} doesn\'t exist.')
+  return filestore_cls(config)

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/filestore_utils_test.py

@@ -0,0 +1,50 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for filestore_utils."""
+import unittest
+from unittest import mock
+
+import parameterized
+
+import platform_config
+import filestore
+from filestore import github_actions
+import filestore_utils
+import test_helpers
+
+
+class GetFilestoreTest(unittest.TestCase):
+  """Tests for get_filestore."""
+
+  @parameterized.parameterized.expand([
+      ({
+          'cfl_platform': 'github',
+      }, github_actions.GithubActionsFilestore),
+  ])
+  def test_get_filestore(self, config_kwargs, filestore_cls):
+    """Tests that get_filestore returns the right filestore given a certain
+    platform."""
+    run_config = test_helpers.create_run_config(**config_kwargs)
+    filestore_impl = filestore_utils.get_filestore(run_config)
+    self.assertIsInstance(filestore_impl, filestore_cls)
+
+  @mock.patch('config_utils.BaseConfig.platform', return_value='other')
+  @mock.patch('config_utils._get_platform_config',
+              return_value=platform_config.BasePlatformConfig())
+  def test_get_filestore_unsupported_platform(self, _, __):
+    """Tests that get_filestore exceptions given a platform it doesn't
+    support."""
+    run_config = test_helpers.create_run_config()
+    with self.assertRaises(filestore.FilestoreError):
+      filestore_utils.get_filestore(run_config)

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/fuzz_target.py

@@ -0,0 +1,408 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""A module to handle running a fuzz target for a specified amount of time."""
+import collections
+import logging
+import multiprocessing
+import os
+import shutil
+import stat
+import tempfile
+from typing import Optional
+
+import clusterfuzz.environment
+import clusterfuzz.fuzz
+
+import config_utils
+import logs
+
+logs.init()
+
+# Use len_control=0 since we don't have enough time fuzzing for len_control to
+# make sense (probably).
+LIBFUZZER_OPTIONS_BATCH = ['-len_control=0']
+# Use a fixed seed for determinism for code change fuzzing.
+LIBFUZZER_OPTIONS_CODE_CHANGE = LIBFUZZER_OPTIONS_BATCH + ['-seed=1337']
+LIBFUZZER_OPTIONS_NO_REPORT_OOM = ['-rss_limit_mb=0']
+
+# The number of reproduce attempts for a crash.
+REPRODUCE_ATTEMPTS = 10
+
+DEFAULT_REPRODUCE_TIME_SECONDS = 30
+PER_LANGUAGE_REPRODUCE_TIMEOUTS = {
+    'python': 30 * 4  # Python takes a bit longer on startup.
+}
+MINIMIZE_TIME_SECONDS = 60 * 4
+
+# Seconds on top of duration until a timeout error is raised.
+BUFFER_TIME = 10
+
+# Log message if we can't check if crash reproduces on an recent build.
+COULD_NOT_TEST_ON_CLUSTERFUZZ_MESSAGE = (
+    'Could not run previous build of target to determine if this code change '
+    '(pr/commit) introduced crash. Assuming crash was newly introduced.')
+
+FuzzResult = collections.namedtuple('FuzzResult',
+                                    ['testcase', 'stacktrace', 'corpus_path'])
+
+
+def get_libfuzzer_parallel_options():
+  """Returns a list containing options to pass to libFuzzer to fuzz using all
+  available cores."""
+  return ['-jobs=' + str(multiprocessing.cpu_count())]
+
+
+class ReproduceError(Exception):
+  """Error for when we can't attempt to reproduce a crash."""
+
+
+def get_fuzz_target_corpus_dir(workspace, target_name):
+  """Returns the directory for storing |target_name|'s corpus in |workspace|."""
+  return os.path.join(workspace.corpora, target_name)
+
+
+def get_fuzz_target_pruned_corpus_dir(workspace, target_name):
+  """Returns the directory for storing |target_name|'s puned corpus in
+  |workspace|."""
+  return os.path.join(workspace.pruned_corpora, target_name)
+
+
+class FuzzTarget:  # pylint: disable=too-many-instance-attributes
+  """A class to manage a single fuzz target.
+
+  Attributes:
+    target_name: The name of the fuzz target.
+    duration: The length of time in seconds that the target should run.
+    target_path: The location of the fuzz target binary.
+    workspace: The workspace for storing things related to fuzzing.
+  """
+
+  # pylint: disable=too-many-arguments
+  def __init__(self, target_path, duration, workspace, clusterfuzz_deployment,
+               config):
+    """Represents a single fuzz target.
+
+    Args:
+      target_path: The location of the fuzz target binary.
+      duration: The length of time  in seconds the target should run.
+      workspace: The path used for storing things needed for fuzzing.
+      clusterfuzz_deployment: The object representing the ClusterFuzz
+          deployment.
+      config: The config of this project.
+    """
+    self.target_path = target_path
+    self.target_name = os.path.basename(self.target_path)
+    self.duration = int(duration)
+    self.workspace = workspace
+    self.clusterfuzz_deployment = clusterfuzz_deployment
+    self.config = config
+    self.latest_corpus_path = get_fuzz_target_corpus_dir(
+        self.workspace, self.target_name)
+    os.makedirs(self.latest_corpus_path, exist_ok=True)
+    self.pruned_corpus_path = get_fuzz_target_pruned_corpus_dir(
+        self.workspace, self.target_name)
+    os.makedirs(self.pruned_corpus_path, exist_ok=True)
+
+  def _download_corpus(self):
+    """Downloads the corpus for the target from ClusterFuzz and returns the path
+    to the corpus. An empty directory is provided if the corpus can't be
+    downloaded or is empty."""
+    self.clusterfuzz_deployment.download_corpus(self.target_name,
+                                                self.latest_corpus_path)
+    return self.latest_corpus_path
+
+  def _target_artifact_path(self):
+    """Target artifact path."""
+    artifact_path = os.path.join(self.workspace.artifacts, self.target_name,
+                                 self.config.sanitizer)
+    os.makedirs(artifact_path, exist_ok=True)
+    return artifact_path
+
+  def _save_crash(self, crash):
+    """Add stacktraces to crashes."""
+    target_reproducer_path = os.path.join(self._target_artifact_path(),
+                                          os.path.basename(crash.input_path))
+    shutil.copy(crash.input_path, target_reproducer_path)
+    bug_summary_artifact_path = target_reproducer_path + '.summary'
+    with open(bug_summary_artifact_path, 'w') as handle:
+      handle.write(crash.stacktrace)
+
+    # Set permissions of testcase to be the same as summary so that we're sure
+    # it can be read by necessary users.
+    permissions_mode = os.stat(bug_summary_artifact_path).st_mode
+    os.chmod(target_reproducer_path, permissions_mode & 0o777)
+    return target_reproducer_path
+
+  def prune(self):
+    """Prunes the corpus and returns the result."""
+    self._download_corpus()
+    with clusterfuzz.environment.Environment(config_utils.DEFAULT_ENGINE,
+                                             self.config.sanitizer,
+                                             self.target_path):
+      engine_impl = clusterfuzz.fuzz.get_engine(config_utils.DEFAULT_ENGINE)
+      result = engine_impl.minimize_corpus(self.target_path, [],
+                                           [self.latest_corpus_path],
+                                           self.pruned_corpus_path,
+                                           self._target_artifact_path(),
+                                           self.duration)
+
+    print(result.logs)
+    return FuzzResult(None, result.logs, self.pruned_corpus_path)
+
+  def fuzz(self, batch=False) -> Optional[FuzzResult]:
+    """Starts the fuzz target run for the length of time specified by duration.
+
+    Returns:
+      FuzzResult namedtuple with stacktrace and testcase if applicable.
+    """
+    logging.info('Running fuzzer: %s.', self.target_name)
+
+    self._download_corpus()
+    corpus_path = self.latest_corpus_path
+
+    logging.info('Starting fuzzing')
+    with tempfile.TemporaryDirectory() as artifacts_dir:
+      with clusterfuzz.environment.Environment(config_utils.DEFAULT_ENGINE,
+                                               self.config.sanitizer,
+                                               self.target_path) as env:
+        engine_impl = clusterfuzz.fuzz.get_engine(config_utils.DEFAULT_ENGINE)
+        options = engine_impl.prepare(corpus_path, env.target_path,
+                                      env.build_dir)
+        options.merge_back_new_testcases = False
+        options.analyze_dictionary = False
+        if batch:
+          options.arguments.extend(LIBFUZZER_OPTIONS_BATCH)
+        else:
+          options.arguments.extend(LIBFUZZER_OPTIONS_CODE_CHANGE)
+
+        if not self.config.report_ooms:
+          options.arguments.extend(LIBFUZZER_OPTIONS_NO_REPORT_OOM)
+
+        if self.config.parallel_fuzzing:
+          if self.config.sanitizer == 'memory':
+            # TODO(https://github.com/google/oss-fuzz/issues/11915): Don't gate
+            # this after jobs is fixed for MSAN.
+            logging.info('Not using jobs because it breaks MSAN.')
+          else:
+            options.arguments.extend(get_libfuzzer_parallel_options())
+
+        result = engine_impl.fuzz(self.target_path, options, artifacts_dir,
+                                  self.duration)
+        print(f'Fuzzing logs:\n{result.logs}')
+
+      if not result.crashes:
+        # Libfuzzer max time was reached.
+        logging.info('Fuzzer %s finished with no crashes discovered.',
+                     self.target_name)
+        return FuzzResult(None, None, self.latest_corpus_path)
+
+      if result.timed_out:
+        logging.info('Not reporting crash in %s because process timed out.',
+                     self.target_name)
+        return FuzzResult(None, None, self.latest_corpus_path)
+
+      # Only report first crash.
+      crash = result.crashes[0]
+      logging.info('Fuzzer: %s. Detected bug.', self.target_name)
+
+      is_reportable = self.is_crash_reportable(crash.input_path,
+                                               crash.reproduce_args,
+                                               batch=batch)
+      if is_reportable or self.config.upload_all_crashes:
+        logging.info('SAVING CRASH')
+        fuzzer_logs = result.logs
+        testcase_path = self._save_crash(crash)
+        if is_reportable and self.config.minimize_crashes:
+          # TODO(metzman): We don't want to minimize unreproducible crashes.
+          # Use is_reportable to decide this even though reportable crashes
+          # are a subset of reproducible ones.
+          self.minimize_testcase(testcase_path)
+        else:
+          logging.info('NOT MINIMIZED')
+      else:
+        fuzzer_logs = None
+        testcase_path = None
+
+    return FuzzResult(testcase_path, fuzzer_logs, self.latest_corpus_path)
+
+  def minimize_testcase(self, testcase_path):
+    """Minimizes the testcase located at |testcase_path|."""
+    with clusterfuzz.environment.Environment(config_utils.DEFAULT_ENGINE,
+                                             self.config.sanitizer,
+                                             self.target_path):
+      engine_impl = clusterfuzz.fuzz.get_engine(config_utils.DEFAULT_ENGINE)
+      minimized_testcase_path = testcase_path + '-minimized'
+      return engine_impl.minimize_testcase(self.target_path, [],
+                                           testcase_path,
+                                           minimized_testcase_path,
+                                           max_time=MINIMIZE_TIME_SECONDS)
+
+  def free_disk_if_needed(self, delete_fuzz_target=True):
+    """Deletes things that are no longer needed from fuzzing this fuzz target to
+    save disk space if needed."""
+    if not self.config.low_disk_space:
+      logging.info('Not freeing disk space after running fuzz target.')
+      return
+    logging.info('Deleting corpus and seed corpus of %s to save disk.',
+                 self.target_name)
+
+    # Delete the seed corpus, corpus, and fuzz target.
+    for corpus_path in [self.latest_corpus_path, self.pruned_corpus_path]:
+      # Use ignore_errors=True to fix
+      # https://github.com/google/oss-fuzz/issues/5383.
+      shutil.rmtree(corpus_path, ignore_errors=True)
+
+    target_seed_corpus_path = self.target_path + '_seed_corpus.zip'
+    if os.path.exists(target_seed_corpus_path):
+      os.remove(target_seed_corpus_path)
+
+    if delete_fuzz_target:
+      logging.info('Deleting fuzz target: %s.', self.target_name)
+      os.remove(self.target_path)
+    logging.info('Done deleting.')
+
+  def is_reproducible(self, testcase, target_path, reproduce_args):
+    """Checks if the testcase reproduces.
+
+      Args:
+        testcase: The path to the testcase to be tested.
+        target_path: The path to the fuzz target to be tested
+        reproduce_args: The arguments to pass to the target to reproduce the
+          crash.
+
+      Returns:
+        True if crash is reproducible and we were able to run the
+        binary.
+
+      Raises:
+        ReproduceError if we can't attempt to reproduce the crash.
+    """
+    if not os.path.exists(target_path):
+      logging.info('Target: %s does not exist.', target_path)
+      raise ReproduceError(f'Target {target_path} not found.')
+
+    os.chmod(target_path, stat.S_IRWXO)
+
+    logging.info('Trying to reproduce crash using: %s.', testcase)
+    with clusterfuzz.environment.Environment(config_utils.DEFAULT_ENGINE,
+                                             self.config.sanitizer,
+                                             target_path):
+      reproduce_time_seconds = PER_LANGUAGE_REPRODUCE_TIMEOUTS.get(
+          self.config.language, DEFAULT_REPRODUCE_TIME_SECONDS)
+      for _ in range(REPRODUCE_ATTEMPTS):
+        engine_impl = clusterfuzz.fuzz.get_engine(config_utils.DEFAULT_ENGINE)
+        try:
+          result = engine_impl.reproduce(target_path,
+                                         testcase,
+                                         arguments=reproduce_args,
+                                         max_time=reproduce_time_seconds)
+        except TimeoutError as error:
+          logging.error('%s.', error)
+          return False
+
+        if result.return_code != 0:
+          logging.info('Reproduce command returned: %s. Reproducible on %s.',
+                       result.return_code, target_path)
+
+          return True
+
+    logging.info('Reproduce command returned: 0. Not reproducible on %s.',
+                 target_path)
+    return False
+
+  def is_crash_reportable(self, testcase, reproduce_args, batch=False):
+    """Returns True if a crash is reportable. This means the crash is
+    reproducible but not reproducible on a build from the ClusterFuzz deployment
+    (meaning the crash was introduced by this PR/commit/code change).
+
+    Args:
+      testcase: The path to the testcase that triggered the crash.
+      reproduce_args: The arguments to pass to the target to reproduce the
+      crash.
+
+    Returns:
+      True if the crash was introduced by the current pull request.
+
+    Raises:
+      ReproduceError if we can't attempt to reproduce the crash on the PR build.
+    """
+
+    if not self.is_crash_type_reportable(testcase):
+      return False
+
+    if not os.path.exists(testcase):
+      raise ReproduceError(f'Testcase {testcase} not found.')
+
+    try:
+      reproducible_on_code_change = self.is_reproducible(
+          testcase, self.target_path, reproduce_args)
+    except ReproduceError as error:
+      logging.error('Could not check for crash reproducibility.'
+                    'Please file an issue:'
+                    'https://github.com/google/oss-fuzz/issues/new.')
+      raise error
+
+    if not reproducible_on_code_change:
+      logging.info('Crash is not reproducible.')
+      return self.config.report_unreproducible_crashes
+
+    logging.info('Crash is reproducible.')
+    if batch:
+      # We don't need to check if the crash is novel for batch fuzzing.
+      return True
+
+    return self.is_crash_novel(testcase, reproduce_args)
+
+  def is_crash_type_reportable(self, testcase):
+    """Returns True if |testcase| is an actual crash. If crash is a timeout or
+    OOM then returns True if config says we should report those."""
+    # TODO(metzman): Use a less hacky method.
+    testcase = os.path.basename(testcase)
+    if testcase.startswith('oom-'):
+      return self.config.report_ooms
+    if testcase.startswith('timeout-'):
+      return self.config.report_timeouts
+    return True
+
+  def is_crash_novel(self, testcase, reproduce_args):
+    """Returns whether or not the crash is new. A crash is considered new if it
+    can't be reproduced on an older ClusterFuzz build of the target."""
+    if not os.path.exists(testcase):
+      raise ReproduceError('Testcase %s not found.' % testcase)
+    clusterfuzz_build_dir = self.clusterfuzz_deployment.download_latest_build()
+    if not clusterfuzz_build_dir:
+      # Crash is reproducible on PR build and we can't test on a recent
+      # ClusterFuzz/OSS-Fuzz build.
+      logging.info(COULD_NOT_TEST_ON_CLUSTERFUZZ_MESSAGE)
+      return True
+
+    clusterfuzz_target_path = os.path.join(clusterfuzz_build_dir,
+                                           self.target_name)
+
+    try:
+      reproducible_on_clusterfuzz_build = self.is_reproducible(
+          testcase, clusterfuzz_target_path, reproduce_args)
+    except ReproduceError:
+      # This happens if the project has ClusterFuzz builds, but the fuzz target
+      # is not in it (e.g. because the fuzz target is new).
+      logging.info(COULD_NOT_TEST_ON_CLUSTERFUZZ_MESSAGE)
+      return True
+
+    if reproducible_on_clusterfuzz_build:
+      logging.info('The crash is reproducible on previous build. '
+                   'Code change (pr/commit) did not introduce crash.')
+      return False
+    logging.info('The crash is not reproducible on previous build. '
+                 'Code change (pr/commit) introduced crash.')
+    return True

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/fuzz_target_test.py

@@ -0,0 +1,298 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests the functionality of the fuzz_target module."""
+
+import os
+import shutil
+import tempfile
+import unittest
+from unittest import mock
+
+import certifi
+# Importing this later causes import failures with pytest for some reason.
+# TODO(ochang): Figure out why.
+import parameterized
+import google.cloud.ndb  # pylint: disable=unused-import
+from pyfakefs import fake_filesystem_unittest
+from clusterfuzz.fuzz import engine
+
+import clusterfuzz_deployment
+import fuzz_target
+import test_helpers
+import workspace_utils
+
+# NOTE: This integration test relies on
+# https://github.com/google/oss-fuzz/tree/master/projects/example project.
+EXAMPLE_PROJECT = 'example'
+
+# An example fuzzer that triggers an error.
+EXAMPLE_FUZZER = 'example_crash_fuzzer'
+
+# Mock return values for engine_impl.reproduce.
+EXECUTE_SUCCESS_RESULT = engine.ReproduceResult([], 0, 0, '')
+EXECUTE_FAILURE_RESULT = engine.ReproduceResult([], 1, 0, '')
+
+TEST_DATA_PATH = os.path.join(os.path.dirname(__file__), 'test_data')
+
+
+def _create_config(**kwargs):
+  """Creates a config object and then sets every attribute that is a key in
+  |kwargs| to the corresponding value. Asserts that each key in |kwargs| is an
+  attribute of Config."""
+  defaults = {
+      'cfl_platform': 'github',
+      'oss_fuzz_project_name': EXAMPLE_PROJECT,
+      'workspace': '/workspace'
+  }
+  for default_key, default_value in defaults.items():
+    if default_key not in kwargs:
+      kwargs[default_key] = default_value
+
+  return test_helpers.create_run_config(**kwargs)
+
+
+def _create_deployment(**kwargs):
+  config = _create_config(**kwargs)
+  workspace = workspace_utils.Workspace(config)
+  return clusterfuzz_deployment.get_clusterfuzz_deployment(config, workspace)
+
+
+@mock.patch('utils.get_container_name', return_value='container')
+class IsReproducibleTest(fake_filesystem_unittest.TestCase):
+  """Tests the is_reproducible method in the fuzz_target.FuzzTarget class."""
+
+  def setUp(self):
+    """Sets up example fuzz target to test is_reproducible method."""
+    self.fuzz_target_name = 'fuzz-target'
+    deployment = _create_deployment()
+    self.config = deployment.config
+    self.workspace = deployment.workspace
+    self.fuzz_target_path = os.path.join(self.workspace.out,
+                                         self.fuzz_target_name)
+    self.setUpPyfakefs()
+    self.fs.create_file(self.fuzz_target_path)
+    self.testcase_path = '/testcase'
+    self.fs.create_file(self.testcase_path)
+
+    self.target = fuzz_target.FuzzTarget(self.fuzz_target_path,
+                                         fuzz_target.REPRODUCE_ATTEMPTS,
+                                         self.workspace, deployment,
+                                         deployment.config)
+
+    # ClusterFuzz requires ROOT_DIR.
+    root_dir = os.environ['ROOT_DIR']
+    test_helpers.patch_environ(self, empty=True)
+    os.environ['ROOT_DIR'] = root_dir
+
+  # There's an extremely bad issue that happens if this test is run: Other tests
+  # in this file fail in CI with stacktraces using referencing fakefs even if
+  # the tests do not use fakefs.
+  # TODO(metzman): Stop using fakefs.
+  @mock.patch('os.chmod')
+  @unittest.skip('Skip because of weird failures.')
+  def test_repro_timed_out(self, mock_chmod, mock_get_container_name):
+    """Tests that is_reproducible behaves correctly when reproduction times
+    out."""
+    del mock_get_container_name
+    del mock_chmod
+
+    with mock.patch(
+        'clusterfuzz._internal.bot.fuzzers.libFuzzer.engine.LibFuzzerEngine.'
+        'reproduce',
+        side_effect=TimeoutError):
+      self.assertFalse(
+          self.target.is_reproducible('/testcase', self.target.target_path, []))
+
+  def test_reproducible(self, _):
+    """Tests that is_reproducible returns True if crash is detected and that
+    is_reproducible uses the correct command to reproduce a crash."""
+    all_repro = [EXECUTE_FAILURE_RESULT] * fuzz_target.REPRODUCE_ATTEMPTS
+    with mock.patch('clusterfuzz.fuzz.get_engine') as mock_get_engine:
+      mock_get_engine().reproduce.side_effect = all_repro
+
+      result = self.target.is_reproducible(self.testcase_path,
+                                           self.fuzz_target_path, [])
+      mock_get_engine().reproduce.assert_called_once_with(
+          '/workspace/build-out/fuzz-target',
+          '/testcase',
+          arguments=[],
+          max_time=30)
+      self.assertTrue(result)
+      self.assertEqual(1, mock_get_engine().reproduce.call_count)
+
+  def test_flaky(self, _):
+    """Tests that is_reproducible returns True if crash is detected on the last
+    attempt."""
+    last_time_repro = [EXECUTE_SUCCESS_RESULT] * 9 + [EXECUTE_FAILURE_RESULT]
+    with mock.patch('clusterfuzz.fuzz.get_engine') as mock_get_engine:
+      mock_get_engine().reproduce.side_effect = last_time_repro
+      self.assertTrue(
+          self.target.is_reproducible(self.testcase_path, self.fuzz_target_path,
+                                      []))
+      self.assertEqual(fuzz_target.REPRODUCE_ATTEMPTS,
+                       mock_get_engine().reproduce.call_count)
+
+  def test_nonexistent_fuzzer(self, _):
+    """Tests that is_reproducible raises an error if it could not attempt
+    reproduction because the fuzzer doesn't exist."""
+    with self.assertRaises(fuzz_target.ReproduceError):
+      self.target.is_reproducible(self.testcase_path, '/non-existent-path', [])
+
+  def test_unreproducible(self, _):
+    """Tests that is_reproducible returns False for a crash that did not
+    reproduce."""
+    all_unrepro = [EXECUTE_SUCCESS_RESULT] * fuzz_target.REPRODUCE_ATTEMPTS
+    with mock.patch('clusterfuzz.fuzz.get_engine') as mock_get_engine:
+      mock_get_engine().reproduce.side_effect = all_unrepro
+      result = self.target.is_reproducible(self.testcase_path,
+                                           self.fuzz_target_path, [])
+      self.assertFalse(result)
+
+
+class IsCrashReportableTest(fake_filesystem_unittest.TestCase):
+  """Tests the is_crash_reportable method of FuzzTarget."""
+
+  def setUp(self):
+    """Sets up example fuzz target to test is_crash_reportable method."""
+    self.setUpPyfakefs()
+    self.fuzz_target_path = '/example/do_stuff_fuzzer'
+    deployment = _create_deployment()
+    self.target = fuzz_target.FuzzTarget(self.fuzz_target_path, 100,
+                                         deployment.workspace, deployment,
+                                         deployment.config)
+    self.oss_fuzz_build_path = '/oss-fuzz-build'
+    self.fs.create_file(self.fuzz_target_path)
+    self.oss_fuzz_target_path = os.path.join(
+        self.oss_fuzz_build_path, os.path.basename(self.fuzz_target_path))
+    self.fs.create_file(self.oss_fuzz_target_path)
+    self.testcase_path = '/testcase'
+    self.fs.create_file(self.testcase_path, contents='')
+
+    # Do this to prevent pyfakefs from messing with requests.
+    self.fs.add_real_directory(os.path.dirname(certifi.__file__))
+
+  @mock.patch('fuzz_target.FuzzTarget.is_reproducible',
+              side_effect=[True, False])
+  @mock.patch('logging.info')
+  def test_new_reproducible_crash(self, mock_info, _):
+    """Tests that a new reproducible crash returns True."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      self.target.out_dir = tmp_dir
+      self.assertTrue(self.target.is_crash_reportable(self.testcase_path, []))
+    mock_info.assert_called_with(
+        'The crash is not reproducible on previous build. '
+        'Code change (pr/commit) introduced crash.')
+
+  # yapf: disable
+  @parameterized.parameterized.expand([
+      # Reproducible on PR build, but also reproducible on OSS-Fuzz.
+      ([True, True],),
+
+      # Not reproducible on PR build, but somehow reproducible on OSS-Fuzz.
+      # Unlikely to happen in real world except if test is flaky.
+      ([False, True],),
+
+      # Not reproducible on PR build, and not reproducible on OSS-Fuzz.
+      ([False, False],),
+  ])
+  # yapf: enable
+  def test_invalid_crash(self, is_reproducible_retvals):
+    """Tests that a nonreportable crash causes the method to return False."""
+    with mock.patch('fuzz_target.FuzzTarget.is_reproducible',
+                    side_effect=is_reproducible_retvals):
+      with mock.patch('clusterfuzz_deployment.OSSFuzz.download_latest_build',
+                      return_value=self.oss_fuzz_build_path):
+        self.assertFalse(self.target.is_crash_reportable(
+            self.testcase_path, []))
+
+  @mock.patch('logging.info')
+  @mock.patch('fuzz_target.FuzzTarget.is_reproducible', return_value=[True])
+  def test_reproducible_no_oss_fuzz_target(self, _, mock_info):
+    """Tests that is_crash_reportable returns True when a crash reproduces on
+    the PR build but the target is not in the OSS-Fuzz build (usually because it
+    is new)."""
+    os.remove(self.oss_fuzz_target_path)
+
+    def is_reproducible_side_effect(testcase, target_path, reproduce_arguments):
+      del testcase
+      del reproduce_arguments
+      if os.path.dirname(target_path) == self.oss_fuzz_build_path:
+        raise fuzz_target.ReproduceError()
+      return True
+
+    with mock.patch(
+        'fuzz_target.FuzzTarget.is_reproducible',
+        side_effect=is_reproducible_side_effect) as mock_is_reproducible:
+      with mock.patch('clusterfuzz_deployment.OSSFuzz.download_latest_build',
+                      return_value=self.oss_fuzz_build_path):
+        self.assertTrue(self.target.is_crash_reportable(self.testcase_path, []))
+    mock_is_reproducible.assert_any_call(self.testcase_path,
+                                         self.oss_fuzz_target_path, [])
+    mock_info.assert_called_with(
+        'Could not run previous build of target to determine if this code '
+        'change (pr/commit) introduced crash. Assuming crash was newly '
+        'introduced.')
+
+
+class FuzzTest(fake_filesystem_unittest.TestCase):
+  """Fuzz test."""
+
+  def setUp(self):
+    """Sets up example fuzz target."""
+    self.setUpPyfakefs()
+    deployment = _create_deployment()
+    config = deployment.config
+    workspace = deployment.workspace
+    self.fuzz_target = fuzz_target.FuzzTarget('/path/fuzz-target', 10,
+                                              workspace, deployment, config)
+
+  def test_get_fuzz_target_artifact(self):
+    """Tests that get_fuzz_target_artifact works as intended."""
+    # pylint: disable=protected-access
+    fuzz_target_artifact = self.fuzz_target._target_artifact_path()
+    self.assertEqual('/workspace/out/artifacts/fuzz-target/address',
+                     fuzz_target_artifact)
+
+
+class TimeoutIntegrationTest(unittest.TestCase):
+  """Tests handling of fuzzer timeout (timeout crashes reported by
+  libFuzzer)."""
+  TIMEOUT_FUZZER_NAME = 'timeout_fuzzer'
+
+  @parameterized.parameterized.expand([(True, True), (False, False)])
+  def test_timeout_reported(self, report_timeouts, expect_crash):
+    """Tests that timeouts are not reported."""
+    with test_helpers.temp_dir_copy(TEST_DATA_PATH) as temp_dir:
+      fuzz_target_path = os.path.join(temp_dir, 'build-out',
+                                      self.TIMEOUT_FUZZER_NAME)
+      shutil.copy(os.path.join(temp_dir, self.TIMEOUT_FUZZER_NAME),
+                  fuzz_target_path)
+      deployment = _create_deployment(workspace=temp_dir,
+                                      report_timeouts=report_timeouts)
+      config = deployment.config
+      fuzz_target_obj = fuzz_target.FuzzTarget(fuzz_target_path,
+                                               fuzz_target.REPRODUCE_ATTEMPTS,
+                                               deployment.workspace, deployment,
+                                               config)
+      with mock.patch('clusterfuzz._internal.bot.fuzzers.libfuzzer.'
+                      'fix_timeout_argument_for_reproduction') as _:
+        with mock.patch(
+            'clusterfuzz._internal.bot.fuzzers.libFuzzer.fuzzer.get_arguments',
+            return_value=['-timeout=1', '-rss_limit_mb=2560']):
+          fuzz_result = fuzz_target_obj.fuzz()
+    self.assertEqual(bool(fuzz_result.testcase), expect_crash)
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/generate_coverage_report.py

@@ -0,0 +1,48 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for generating coverage reports."""
+import os
+
+import base_runner_utils
+import fuzz_target
+import utils
+
+
+def run_coverage_command(config, workspace):
+  """Runs the coverage command in base-runner to generate a coverage report."""
+  env = base_runner_utils.get_env(config, workspace)
+  env['HTTP_PORT'] = ''
+  env['COVERAGE_EXTRA_ARGS'] = ''
+  env['CORPUS_DIR'] = workspace.corpora
+  env['COVERAGE_OUTPUT_DIR'] = workspace.coverage_report
+  command = 'coverage'
+  return utils.execute(command, env=env)
+
+
+def download_corpora(fuzz_target_paths, clusterfuzz_deployment):
+  """Downloads corpora for fuzz targets in |fuzz_target_paths| using
+  |clusterfuzz_deployment| to download corpora from ClusterFuzz/OSS-Fuzz."""
+  for target_path in fuzz_target_paths:
+    target_name = os.path.basename(target_path)
+    corpus_dir = fuzz_target.get_fuzz_target_corpus_dir(
+        clusterfuzz_deployment.workspace, target_name)
+    clusterfuzz_deployment.download_corpus(target_name, corpus_dir)
+
+
+def generate_coverage_report(fuzz_target_paths, workspace,
+                             clusterfuzz_deployment, config):
+  """Generates a coverage report using Clang's source based coverage."""
+  download_corpora(fuzz_target_paths, clusterfuzz_deployment)
+  run_coverage_command(config, workspace)
+  clusterfuzz_deployment.upload_coverage()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/generate_coverage_report_test.py

@@ -0,0 +1,71 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for generate_coverage_report."""
+
+import unittest
+from unittest import mock
+
+import generate_coverage_report
+import test_helpers
+
+OUT_DIR = '/outdir'
+PROJECT = 'example-project'
+SANITIZER = 'coverage'
+
+
+class TestRunCoverageCommand(unittest.TestCase):
+  """Tests run_coverage_command"""
+
+  def setUp(self):
+    test_helpers.patch_environ(self, empty=True)
+
+  @mock.patch('utils.execute')
+  def test_run_coverage_command(self, mock_execute):  # pylint: disable=no-self-use
+    """Tests that run_coverage_command works as intended."""
+    config = test_helpers.create_run_config(oss_fuzz_project_name=PROJECT,
+                                            sanitizer=SANITIZER)
+    workspace = test_helpers.create_workspace()
+    generate_coverage_report.run_coverage_command(config, workspace)
+    expected_command = 'coverage'
+    expected_env = {
+        'SANITIZER': config.sanitizer,
+        'FUZZING_LANGUAGE': config.language,
+        'OUT': workspace.out,
+        'CIFUZZ': 'True',
+        'FUZZING_ENGINE': 'libfuzzer',
+        'ARCHITECTURE': 'x86_64',
+        'FUZZER_ARGS': '-rss_limit_mb=2560 -timeout=25',
+        'HTTP_PORT': '',
+        'COVERAGE_EXTRA_ARGS': '',
+        'CORPUS_DIR': workspace.corpora,
+        'COVERAGE_OUTPUT_DIR': workspace.coverage_report
+    }
+    mock_execute.assert_called_with(expected_command, env=expected_env)
+
+
+class DownloadCorporaTest(unittest.TestCase):
+  """Tests for download_corpora."""
+
+  def test_download_corpora(self):  # pylint: disable=no-self-use
+    """Tests that download_corpora works as intended."""
+    clusterfuzz_deployment = mock.Mock()
+    clusterfuzz_deployment.workspace = test_helpers.create_workspace()
+    fuzz_target_paths = ['/path/to/fuzzer1', '/path/to/fuzzer2']
+    expected_calls = [
+        mock.call('fuzzer1', '/workspace/cifuzz-corpus/fuzzer1'),
+        mock.call('fuzzer2', '/workspace/cifuzz-corpus/fuzzer2')
+    ]
+    generate_coverage_report.download_corpora(fuzz_target_paths,
+                                              clusterfuzz_deployment)
+    clusterfuzz_deployment.download_corpus.assert_has_calls(expected_calls)

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/get_coverage.py

@@ -0,0 +1,208 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for determining coverage of fuzz targets."""
+import json
+import logging
+import os
+import sys
+
+import http_utils
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+import utils
+
+# The path to get OSS-Fuzz project's latest report json file.`
+OSS_FUZZ_LATEST_COVERAGE_INFO_PATH = 'oss-fuzz-coverage/latest_report_info/'
+
+
+# pylint: disable=too-few-public-methods
+class CoverageError(Exception):
+  """Exceptions for project coverage."""
+
+
+class BaseCoverage:
+  """Gets coverage data for a project."""
+
+  def __init__(self, repo_path):
+    self.repo_path = _normalize_repo_path(repo_path)
+
+  def get_files_covered_by_target(self, target):
+    """Returns a list of source files covered by the specific fuzz target.
+
+    Args:
+      target: The name of the fuzz target whose coverage is requested.
+
+    Returns:
+      A list of files that the fuzz target covers or None.
+    """
+    target_cov = self.get_target_coverage(target)
+    if not target_cov:
+      logging.info('No coverage available for %s.', target)
+      return None
+
+    coverage_per_file = get_coverage_per_file(target_cov)
+    if not coverage_per_file:
+      logging.info('No files found in coverage report.')
+      return None
+
+    affected_file_list = []
+    for file_cov in coverage_per_file:
+      norm_file_path = os.path.normpath(file_cov['filename'])
+      if not norm_file_path.startswith(self.repo_path):
+        # Exclude files outside of the main repo.
+        continue
+
+      if not is_file_covered(file_cov):
+        # Don't consider a file affected if code in it is never executed.
+        continue
+
+      # TODO(metzman): It's weird to me that we access file_cov['filename']
+      # again and not norm_file_path, figure out if this makes sense.
+      relative_path = utils.remove_prefix(file_cov['filename'], self.repo_path)
+      affected_file_list.append(relative_path)
+
+    return affected_file_list
+
+  def get_target_coverage(self, target):
+    """Get the coverage report for a specific fuzz target.
+
+    Args:
+      target: The name of the fuzz target whose coverage is requested.
+
+    Returns:
+      The target's coverage json dict or None on failure.
+    """
+    raise NotImplementedError('Child class must implement method.')
+
+
+class OSSFuzzCoverage(BaseCoverage):
+  """Gets coverage data for a project from OSS-Fuzz."""
+
+  def __init__(self, repo_path, oss_fuzz_project_name):
+    """Constructor for OSSFuzzCoverage."""
+    super().__init__(repo_path)
+    self.oss_fuzz_project_name = oss_fuzz_project_name
+    self.fuzzer_stats_url = _get_oss_fuzz_fuzzer_stats_dir_url(
+        self.oss_fuzz_project_name)
+    if self.fuzzer_stats_url is None:
+      raise CoverageError('Could not get latest coverage.')
+
+  def get_target_coverage(self, target):
+    """Get the coverage report for a specific fuzz target.
+
+    Args:
+      target: The name of the fuzz target whose coverage is requested.
+
+    Returns:
+      The target's coverage json dict or None on failure.
+    """
+    if not self.fuzzer_stats_url:
+      return None
+
+    target_url = utils.url_join(self.fuzzer_stats_url, target + '.json')
+    return http_utils.get_json_from_url(target_url)
+
+
+def _get_oss_fuzz_latest_cov_report_info(oss_fuzz_project_name):
+  """Gets and returns a dictionary containing the latest coverage report info
+  for |project|."""
+  latest_report_info_url = utils.url_join(utils.GCS_BASE_URL,
+                                          OSS_FUZZ_LATEST_COVERAGE_INFO_PATH,
+                                          oss_fuzz_project_name + '.json')
+  latest_cov_info = http_utils.get_json_from_url(latest_report_info_url)
+  if latest_cov_info is None:
+    logging.error('Could not get the coverage report json from url: %s.',
+                  latest_report_info_url)
+    return None
+  return latest_cov_info
+
+
+def _get_oss_fuzz_fuzzer_stats_dir_url(oss_fuzz_project_name):
+  """Gets latest coverage report info for a specific OSS-Fuzz project from
+  GCS.
+
+  Args:
+    oss_fuzz_project_name: The name of the project.
+
+  Returns:
+    The projects coverage report info in json dict or None on failure.
+  """
+  latest_cov_info = _get_oss_fuzz_latest_cov_report_info(oss_fuzz_project_name)
+
+  if not latest_cov_info:
+    return None
+
+  if 'fuzzer_stats_dir' not in latest_cov_info:
+    logging.error('fuzzer_stats_dir not in latest coverage info.')
+    return None
+
+  fuzzer_stats_dir_gs_url = latest_cov_info['fuzzer_stats_dir']
+  fuzzer_stats_dir_url = utils.gs_url_to_https(fuzzer_stats_dir_gs_url)
+  return fuzzer_stats_dir_url
+
+
+class FilesystemCoverage(BaseCoverage):
+  """Class that gets a project's coverage from the filesystem."""
+
+  def __init__(self, repo_path, project_coverage_dir):
+    super().__init__(repo_path)
+    self.project_coverage_dir = project_coverage_dir
+
+  def get_target_coverage(self, target):
+    """Get the coverage report for a specific fuzz target.
+
+    Args:
+      target: The name of the fuzz target whose coverage is requested.
+
+    Returns:
+      The target's coverage json dict or None on failure.
+    """
+    logging.info('Getting coverage for %s from filesystem.', target)
+    fuzzer_stats_json_path = os.path.join(self.project_coverage_dir,
+                                          'fuzzer_stats', target + '.json')
+    if not os.path.exists(fuzzer_stats_json_path):
+      logging.warning('%s does not exist.', fuzzer_stats_json_path)
+      return None
+
+    with open(fuzzer_stats_json_path) as fuzzer_stats_json_file_handle:
+      try:
+        return json.load(fuzzer_stats_json_file_handle)
+      except json.decoder.JSONDecodeError as err:
+        logging.error('Could not decode: %s. Error: %s.',
+                      fuzzer_stats_json_path, err)
+        return None
+
+
+def is_file_covered(file_cov):
+  """Returns whether the file is covered."""
+  return file_cov['summary']['regions']['covered']
+
+
+def get_coverage_per_file(target_cov):
+  """Returns the coverage per file within |target_cov|."""
+  try:
+    return target_cov['data'][0]['files']
+  except (IndexError, TypeError, KeyError):
+    logging.error('target_cov: %s is malformed.', target_cov)
+    return None
+
+
+def _normalize_repo_path(repo_path):
+  """Normalizes and returns |repo_path| to make sure cases like /src/curl and
+  /src/curl/ are both handled."""
+  repo_path = os.path.normpath(repo_path)
+  if not repo_path.endswith('/'):
+    repo_path += '/'
+  return repo_path

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/get_coverage_test.py

@@ -0,0 +1,253 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for get_coverage.py"""
+import os
+import json
+import unittest
+from unittest import mock
+
+import parameterized
+from pyfakefs import fake_filesystem_unittest
+import pytest
+
+import get_coverage
+
+# pylint: disable=protected-access
+
+TEST_DATA_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                              'test_data')
+
+PROJECT_NAME = 'curl'
+REPO_PATH = '/src/curl'
+FUZZ_TARGET = 'curl_fuzzer'
+PROJECT_COV_JSON_FILENAME = 'example_curl_cov.json'
+FUZZ_TARGET_COV_JSON_FILENAME = 'example_curl_fuzzer_cov.json'
+INVALID_TARGET = 'not-a-fuzz-target'
+
+with open(os.path.join(TEST_DATA_PATH,
+                       PROJECT_COV_JSON_FILENAME),) as cov_file_handle:
+  PROJECT_COV_INFO = json.loads(cov_file_handle.read())
+
+
+class GetOssFuzzFuzzerStatsDirUrlTest(unittest.TestCase):
+  """Tests _get_oss_fuzz_fuzzer_stats_dir_url."""
+
+  @mock.patch('http_utils.get_json_from_url',
+              return_value={
+                  'fuzzer_stats_dir':
+                      'gs://oss-fuzz-coverage/systemd/fuzzer_stats/20210303'
+              })
+  def test_get_valid_project(self, mock_get_json_from_url):
+    """Tests that a project's coverage report can be downloaded and parsed.
+
+    NOTE: This test relies on the PROJECT_NAME repo's coverage report.
+    The "example" project was not used because it has no coverage reports.
+    """
+    result = get_coverage._get_oss_fuzz_fuzzer_stats_dir_url(PROJECT_NAME)
+    (url,), _ = mock_get_json_from_url.call_args
+    self.assertEqual(
+        'https://storage.googleapis.com/oss-fuzz-coverage/'
+        'latest_report_info/curl.json', url)
+
+    expected_result = (
+        'https://storage.googleapis.com/oss-fuzz-coverage/systemd/fuzzer_stats/'
+        '20210303')
+    self.assertEqual(result, expected_result)
+
+  def test_get_invalid_project(self):
+    """Tests that passing a bad project returns None."""
+    self.assertIsNone(
+        get_coverage._get_oss_fuzz_fuzzer_stats_dir_url('not-a-proj'))
+
+
+class OSSFuzzCoverageGetTargetCoverageTest(unittest.TestCase):
+  """Tests OSSFuzzCoverage.get_target_coverage."""
+
+  def setUp(self):
+    with mock.patch('get_coverage._get_oss_fuzz_latest_cov_report_info',
+                    return_value=PROJECT_COV_INFO):
+      self.oss_fuzz_coverage = get_coverage.OSSFuzzCoverage(
+          REPO_PATH, PROJECT_NAME)
+
+  @mock.patch('http_utils.get_json_from_url', return_value={})
+  def test_valid_target(self, mock_get_json_from_url):
+    """Tests that a target's coverage report can be downloaded and parsed."""
+    self.oss_fuzz_coverage.get_target_coverage(FUZZ_TARGET)
+    (url,), _ = mock_get_json_from_url.call_args
+    self.assertEqual(
+        'https://storage.googleapis.com/oss-fuzz-coverage/'
+        'curl/fuzzer_stats/20200226/curl_fuzzer.json', url)
+
+  def test_invalid_target(self):
+    """Tests that passing an invalid target coverage report returns None."""
+    self.assertIsNone(
+        self.oss_fuzz_coverage.get_target_coverage(INVALID_TARGET))
+
+  @mock.patch('get_coverage._get_oss_fuzz_latest_cov_report_info',
+              return_value=None)
+  def test_invalid_project_json(self, _):  # pylint: disable=no-self-use
+    """Tests an invalid project JSON results in None being returned."""
+    with pytest.raises(get_coverage.CoverageError):
+      get_coverage.OSSFuzzCoverage(REPO_PATH, PROJECT_NAME)
+
+
+def _get_expected_curl_covered_file_list():
+  """Returns the expected covered file list for
+  FUZZ_TARGET_COV_JSON_FILENAME."""
+  curl_files_list_path = os.path.join(TEST_DATA_PATH,
+                                      'example_curl_file_list.json')
+  with open(curl_files_list_path) as file_handle:
+    return json.loads(file_handle.read())
+
+
+def _get_example_curl_coverage():
+  """Returns the contents of the fuzzer stats JSON file for
+  FUZZ_TARGET_COV_JSON_FILENAME."""
+  with open(os.path.join(TEST_DATA_PATH,
+                         FUZZ_TARGET_COV_JSON_FILENAME)) as file_handle:
+    return json.loads(file_handle.read())
+
+
+class OSSFuzzCoverageGetFilesCoveredByTargetTest(unittest.TestCase):
+  """Tests OSSFuzzCoverage.get_files_covered_by_target."""
+
+  def setUp(self):
+    with mock.patch('get_coverage._get_oss_fuzz_latest_cov_report_info',
+                    return_value=PROJECT_COV_INFO):
+      self.oss_fuzz_coverage = get_coverage.OSSFuzzCoverage(
+          REPO_PATH, PROJECT_NAME)
+
+  @parameterized.parameterized.expand([({
+      'data': []
+  },), ({
+      'data': [[]]
+  },), ({
+      'data': [{}]
+  },)])
+  def test_malformed_cov_data(self, coverage_data):
+    """Tests that covered files can be retrieved from a coverage report."""
+    with mock.patch('get_coverage.OSSFuzzCoverage.get_target_coverage',
+                    return_value=coverage_data):
+      self.oss_fuzz_coverage.get_files_covered_by_target(FUZZ_TARGET)
+
+  def test_valid_target(self):
+    """Tests that covered files can be retrieved from a coverage report."""
+    fuzzer_cov_data = _get_example_curl_coverage()
+    with mock.patch('get_coverage.OSSFuzzCoverage.get_target_coverage',
+                    return_value=fuzzer_cov_data):
+      file_list = self.oss_fuzz_coverage.get_files_covered_by_target(
+          FUZZ_TARGET)
+
+    expected_file_list = _get_expected_curl_covered_file_list()
+    self.assertCountEqual(file_list, expected_file_list)
+
+  def test_invalid_target(self):
+    """Tests passing invalid fuzz target returns None."""
+    self.assertIsNone(
+        self.oss_fuzz_coverage.get_files_covered_by_target(INVALID_TARGET))
+
+
+class FilesystemCoverageGetFilesCoveredByTargetTest(
+    fake_filesystem_unittest.TestCase):
+  """Tests FilesystemCoverage.get_files_covered_by_target."""
+
+  def setUp(self):
+    _fuzzer_cov_data = _get_example_curl_coverage()
+    self._expected_file_list = _get_expected_curl_covered_file_list()
+    self.coverage_path = '/coverage'
+    self.filesystem_coverage = get_coverage.FilesystemCoverage(
+        REPO_PATH, self.coverage_path)
+    self.setUpPyfakefs()
+    self.fs.create_file(os.path.join(self.coverage_path, 'fuzzer_stats',
+                                     FUZZ_TARGET + '.json'),
+                        contents=json.dumps(_fuzzer_cov_data))
+
+  def test_valid_target(self):
+    """Tests that covered files can be retrieved from a coverage report."""
+    file_list = self.filesystem_coverage.get_files_covered_by_target(
+        FUZZ_TARGET)
+    self.assertCountEqual(file_list, self._expected_file_list)
+
+  def test_invalid_target(self):
+    """Tests passing invalid fuzz target returns None."""
+    self.assertIsNone(
+        self.filesystem_coverage.get_files_covered_by_target(INVALID_TARGET))
+
+
+class IsFileCoveredTest(unittest.TestCase):
+  """Tests for is_file_covered."""
+
+  def test_is_file_covered_covered(self):
+    """Tests that is_file_covered returns True for a covered file."""
+    file_coverage = {
+        'filename': '/src/systemd/src/basic/locale-util.c',
+        'summary': {
+            'regions': {
+                'count': 204,
+                'covered': 200,
+                'notcovered': 200,
+                'percent': 98.03
+            }
+        }
+    }
+    self.assertTrue(get_coverage.is_file_covered(file_coverage))
+
+  def test_is_file_covered_not_covered(self):
+    """Tests that is_file_covered returns False for a not covered file."""
+    file_coverage = {
+        'filename': '/src/systemd/src/basic/locale-util.c',
+        'summary': {
+            'regions': {
+                'count': 204,
+                'covered': 0,
+                'notcovered': 0,
+                'percent': 0
+            }
+        }
+    }
+    self.assertFalse(get_coverage.is_file_covered(file_coverage))
+
+
+class GetOssFuzzLatestCovReportInfo(unittest.TestCase):
+  """Tests that _get_oss_fuzz_latest_cov_report_info works as
+  intended."""
+
+  PROJECT = 'project'
+  LATEST_REPORT_INFO_URL = ('https://storage.googleapis.com/oss-fuzz-coverage/'
+                            'latest_report_info/project.json')
+
+  @mock.patch('logging.error')
+  @mock.patch('http_utils.get_json_from_url', return_value={'coverage': 1})
+  def test_get_oss_fuzz_latest_cov_report_info(self, mock_get_json_from_url,
+                                               mock_error):
+    """Tests that _get_oss_fuzz_latest_cov_report_info works as intended."""
+    result = get_coverage._get_oss_fuzz_latest_cov_report_info(self.PROJECT)
+    self.assertEqual(result, {'coverage': 1})
+    mock_error.assert_not_called()
+    mock_get_json_from_url.assert_called_with(self.LATEST_REPORT_INFO_URL)
+
+  @mock.patch('logging.error')
+  @mock.patch('http_utils.get_json_from_url', return_value=None)
+  def test_get_oss_fuzz_latest_cov_report_info_fail(self, _, mock_error):
+    """Tests that _get_oss_fuzz_latest_cov_report_info works as intended when we
+    can't get latest report info."""
+    result = get_coverage._get_oss_fuzz_latest_cov_report_info('project')
+    self.assertIsNone(result)
+    mock_error.assert_called_with(
+        'Could not get the coverage report json from url: %s.',
+        self.LATEST_REPORT_INFO_URL)
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/http_utils.py

@@ -0,0 +1,118 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Utility module for HTTP."""
+import json
+import logging
+import os
+import sys
+import tempfile
+import zipfile
+
+import requests
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+import retry
+
+_DOWNLOAD_URL_RETRIES = 3
+_DOWNLOAD_URL_BACKOFF = 1
+_HTTP_REQUEST_TIMEOUT = 10
+
+
+def download_and_unpack_zip(url, extract_directory, headers=None):
+  """Downloads and unpacks a zip file from an HTTP URL.
+
+  Args:
+    url: A url to the zip file to be downloaded and unpacked.
+    extract_directory: The path where the zip file should be extracted to.
+    headers: (Optional) HTTP headers to send with the download request.
+
+  Returns:
+    True on success.
+  """
+  if headers is None:
+    headers = {}
+
+  if not os.path.exists(extract_directory):
+    logging.error('Extract directory: %s does not exist.', extract_directory)
+    return False
+
+  # Gives the temporary zip file a unique identifier in the case that
+  # that download_and_unpack_zip is done in parallel.
+  with tempfile.NamedTemporaryFile(suffix='.zip') as tmp_file:
+    if not download_url(url, tmp_file.name, headers=headers):
+      return False
+
+    try:
+      with zipfile.ZipFile(tmp_file.name, 'r') as zip_file:
+        zip_file.extractall(extract_directory)
+    except zipfile.BadZipFile:
+      logging.error('Error unpacking zip from %s. Bad Zipfile.', url)
+      return False
+
+  return True
+
+
+def download_url(*args, **kwargs):
+  """Wrapper around _download_url that returns False if _download_url
+  exceptions."""
+  try:
+    return _download_url(*args, **kwargs)
+  except Exception:  # pylint: disable=broad-except
+    return False
+
+
+def get_json_from_url(url):
+  """Gets a json object from a specified HTTP URL.
+
+  Args:
+    url: The url of the json to be downloaded.
+
+  Returns:
+    A dictionary deserialized from JSON or None on failure.
+  """
+  try:
+    return requests.get(url, timeout=_HTTP_REQUEST_TIMEOUT).json()
+  except (ValueError, TypeError, json.JSONDecodeError,
+          requests.exceptions.ReadTimeout) as err:
+    logging.error('Loading json from url %s failed with: %s.', url, str(err))
+    return None
+
+
+@retry.wrap(_DOWNLOAD_URL_RETRIES, _DOWNLOAD_URL_BACKOFF)
+def _download_url(url, filename, headers=None):
+  """Downloads the file located at |url|, using HTTP to |filename|.
+
+  Args:
+    url: A url to a file to download.
+    filename: The path the file should be downloaded to.
+    headers: (Optional) HTTP headers to send with the download request.
+
+  Returns:
+    True on success.
+  """
+  if headers is None:
+    headers = {}
+
+  response = requests.get(url, headers=headers)
+
+  if response.status_code != 200:
+    logging.error('Unable to download from: %s. Code: %d. Content: %s.', url,
+                  response.status_code, response.content)
+    return False
+
+  with open(filename, 'wb') as file_handle:
+    file_handle.write(response.content)
+
+  return True

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/http_utils_test.py

@@ -0,0 +1,71 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for http_utils.py"""
+
+import unittest
+from unittest import mock
+
+from pyfakefs import fake_filesystem_unittest
+
+import http_utils
+
+mock_get_response = mock.MagicMock(status_code=200, content=b'')
+
+
+class DownloadUrlTest(unittest.TestCase):
+  """Tests that download_url works."""
+  URL = 'https://example.com/file'
+  FILE_PATH = '/tmp/file'
+
+  @mock.patch('time.sleep')
+  @mock.patch('requests.get', return_value=mock_get_response)
+  def test_download_url_no_error(self, mock_urlretrieve, _):
+    """Tests that download_url works when there is no error."""
+    self.assertTrue(http_utils.download_url(self.URL, self.FILE_PATH))
+    self.assertEqual(1, mock_urlretrieve.call_count)
+
+  @mock.patch('time.sleep')
+  @mock.patch('logging.error')
+  @mock.patch('requests.get',
+              return_value=mock.MagicMock(status_code=404, content=b''))
+  def test_download_url_http_error(self, mock_get, mock_error, _):
+    """Tests that download_url doesn't retry when there is an HTTP error."""
+    self.assertFalse(http_utils.download_url(self.URL, self.FILE_PATH))
+    mock_error.assert_called_with(
+        'Unable to download from: %s. Code: %d. Content: %s.', self.URL, 404,
+        b'')
+    self.assertEqual(1, mock_get.call_count)
+
+  @mock.patch('time.sleep')
+  @mock.patch('requests.get', side_effect=ConnectionResetError)
+  def test_download_url_connection_error(self, mock_get, mock_sleep):
+    """Tests that download_url doesn't retry when there is an HTTP error."""
+    self.assertFalse(http_utils.download_url(self.URL, self.FILE_PATH))
+    self.assertEqual(4, mock_get.call_count)
+    self.assertEqual(3, mock_sleep.call_count)
+
+
+class DownloadAndUnpackZipTest(fake_filesystem_unittest.TestCase):
+  """Tests download_and_unpack_zip."""
+
+  def setUp(self):
+    self.setUpPyfakefs()
+
+  @mock.patch('requests.get', return_value=mock_get_response)
+  def test_bad_zip_download(self, _):
+    """Tests download_and_unpack_zip returns none when a bad zip is passed."""
+    self.fs.create_file('/url_tmp.zip', contents='Test file.')
+    self.assertFalse(
+        http_utils.download_and_unpack_zip('/not/a/real/url',
+                                           '/extract-directory'))

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/logs.py

@@ -0,0 +1,25 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Log helpers."""
+
+import logging
+import os
+
+
+def init():
+  """Initialize logging."""
+  log_level = logging.DEBUG if os.getenv('CIFUZZ_DEBUG') else logging.INFO
+  logging.basicConfig(
+      format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
+      level=log_level)

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/requirements.txt

@@ -0,0 +1,4 @@
+clusterfuzz==2.5.9
+requests==2.28.0
+protobuf==3.20.2
+gsutil==5.20

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/run_cifuzz.py

@@ -0,0 +1,89 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Script for running CIFuzz end-to-end. This is meant to work outside any
+docker image. This cannot depend on any CIFuzz code or third party packages."""
+import os
+import subprocess
+import sys
+import tempfile
+import logging
+
+INFRA_DIR = os.path.dirname(os.path.dirname(__file__))
+DEFAULT_ENVS = [('DRY_RUN', '0'), ('SANITIZER', 'address')]
+BASE_CIFUZZ_DOCKER_TAG = 'ghcr.io/aixcc-finals'
+
+
+def set_default_env_var_if_unset(env_var, default_value):
+  """Sets the value of |env_var| in the environment to |default_value| if it was
+  not already set."""
+  if env_var not in os.environ:
+    os.environ[env_var] = default_value
+
+
+def docker_run(name, workspace, project_src_path):
+  """Runs a CIFuzz docker container with |name|."""
+  command = [
+      'docker', 'run', '--name', name, '--rm', '-e', 'PROJECT_SRC_PATH', '-e',
+      'OSS_FUZZ_PROJECT_NAME', '-e', 'WORKSPACE', '-e', 'REPOSITORY', '-e',
+      'DRY_RUN', '-e', 'CI', '-e', 'SANITIZER', '-e', 'GIT_SHA', '-e',
+      'FILESTORE', '-e', 'NO_CLUSTERFUZZ_DEPLOYMENT'
+  ]
+  if project_src_path:
+    command += ['-v', f'{project_src_path}:{project_src_path}']
+  command += [
+      '-v', '/var/run/docker.sock:/var/run/docker.sock', '-v',
+      f'{workspace}:{workspace}', f'{BASE_CIFUZZ_DOCKER_TAG}/{name}'
+  ]
+  print('Running docker command:', command)
+  subprocess.run(command, check=True)
+
+
+def docker_build(image):
+  """Builds the CIFuzz |image|. Only suitable for building CIFuzz images."""
+  command = [
+      'docker', 'build', '-t', f'{BASE_CIFUZZ_DOCKER_TAG}/{image}', '--file',
+      f'{image}.Dockerfile', '.'
+  ]
+  subprocess.run(command, check=True, cwd=INFRA_DIR)
+
+
+def main():
+  """Builds and runs fuzzers using CIFuzz."""
+  for env_var, default_value in DEFAULT_ENVS:
+    set_default_env_var_if_unset(env_var, default_value)
+
+  repository = os.getenv('REPOSITORY')
+  assert repository
+
+  project_src_path = os.getenv('PROJECT_SRC_PATH')
+
+  with tempfile.TemporaryDirectory() as temp_dir:
+    if 'WORKSPACE' not in os.environ:
+      os.environ['WORKSPACE'] = temp_dir
+
+    workspace = os.environ['WORKSPACE']
+
+    docker_build('build_fuzzers')
+    docker_run('build_fuzzers', workspace, project_src_path)
+    docker_build('run_fuzzers')
+    try:
+      docker_run('run_fuzzers', workspace, project_src_path)
+    except subprocess.CalledProcessError:
+      logging.error('run_fuzzers failed.')
+      return 1
+    return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/run_fuzzers.py

@@ -0,0 +1,321 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for running fuzzers."""
+import enum
+import logging
+import os
+import sys
+import time
+
+import clusterfuzz_deployment
+import fuzz_target
+import generate_coverage_report
+import workspace_utils
+import sarif_utils
+
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import utils
+
+
+class RunFuzzersResult(enum.Enum):
+  """Enum result from running fuzzers."""
+  ERROR = 0
+  BUG_FOUND = 1
+  NO_BUG_FOUND = 2
+
+
+class BaseFuzzTargetRunner:
+  """Base class for fuzzer runners."""
+
+  def __init__(self, config):
+    self.config = config
+    self.workspace = workspace_utils.Workspace(config)
+    self.clusterfuzz_deployment = (
+        clusterfuzz_deployment.get_clusterfuzz_deployment(
+            self.config, self.workspace))
+
+    # Set by the initialize method.
+    self.fuzz_target_paths = None
+
+  def get_fuzz_targets(self):
+    """Returns fuzz targets in out directory."""
+    return utils.get_fuzz_targets(self.workspace.out)
+
+  def initialize(self):
+    """Initialization method. Must be called before calling run_fuzz_targets.
+    Returns True on success."""
+    # Use a separate initialization function so we can return False on failure
+    # instead of exceptioning like we need to do if this were done in the
+    # __init__ method.
+
+    logging.info('Using %s sanitizer.', self.config.sanitizer)
+
+    # TODO(metzman) Add a check to ensure we aren't over time limit.
+    if not self.config.fuzz_seconds or self.config.fuzz_seconds < 1:
+      logging.error(
+          'Fuzz_seconds argument must be greater than 1, but was: %s.',
+          self.config.fuzz_seconds)
+      return False
+
+    if not os.path.exists(self.workspace.out):
+      logging.error('Out directory: %s does not exist.', self.workspace.out)
+      return False
+
+    if not os.path.exists(self.workspace.artifacts):
+      os.makedirs(self.workspace.artifacts)
+    elif (not os.path.isdir(self.workspace.artifacts) or
+          os.listdir(self.workspace.artifacts)):
+      logging.error('Artifacts path: %s exists and is not an empty directory.',
+                    self.workspace.artifacts)
+      return False
+
+    self.fuzz_target_paths = self.get_fuzz_targets()
+    logging.info('Fuzz targets: %s', self.fuzz_target_paths)
+    if not self.fuzz_target_paths:
+      logging.error('No fuzz targets were found in out directory: %s.',
+                    self.workspace.out)
+      return False
+
+    return True
+
+  def cleanup_after_fuzz_target_run(self, fuzz_target_obj):  # pylint: disable=no-self-use
+    """Cleans up after running |fuzz_target_obj|."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def run_fuzz_target(self, fuzz_target_obj):  # pylint: disable=no-self-use
+    """Fuzzes with |fuzz_target_obj| and returns the result."""
+    raise NotImplementedError('Child class must implement method.')
+
+  @property
+  def quit_on_bug_found(self):
+    """Property that is checked to determine if fuzzing should quit after first
+    bug is found."""
+    raise NotImplementedError('Child class must implement method.')
+
+  def create_fuzz_target_obj(self, target_path, run_seconds):
+    """Returns a fuzz target object."""
+    return fuzz_target.FuzzTarget(target_path, run_seconds, self.workspace,
+                                  self.clusterfuzz_deployment, self.config)
+
+  def run_fuzz_targets(self):
+    """Runs fuzz targets. Returns True if a bug was found."""
+    fuzzers_left_to_run = len(self.fuzz_target_paths)
+
+    # Make a copy since we will mutate it.
+    fuzz_seconds = self.config.fuzz_seconds
+
+    min_seconds_per_fuzzer = fuzz_seconds // fuzzers_left_to_run
+    bug_found = False
+    for target_path in self.fuzz_target_paths:
+      # By doing this, we can ensure that every fuzz target runs for at least
+      # min_seconds_per_fuzzer, but that other fuzzers will have longer to run
+      # if one ends early.
+      run_seconds = max(fuzz_seconds // fuzzers_left_to_run,
+                        min_seconds_per_fuzzer)
+
+      target = self.create_fuzz_target_obj(target_path, run_seconds)
+      start_time = time.time()
+      result = self.run_fuzz_target(target)
+      self.cleanup_after_fuzz_target_run(target)
+
+      # It's OK if this goes negative since we take max when determining
+      # run_seconds.
+      fuzz_seconds -= time.time() - start_time
+
+      fuzzers_left_to_run -= 1
+      if not result.testcase or not result.stacktrace:
+        logging.info('Fuzzer %s finished running without reportable crashes.',
+                     target.target_name)
+        continue
+
+      bug_found = True
+      if self.quit_on_bug_found:
+        logging.info('Bug found. Stopping fuzzing.')
+        break
+
+    # pylint: disable=undefined-loop-variable
+    if not target_path:
+      logging.error('Ran no fuzz targets.')
+    elif self.config.output_sarif:
+      # TODO(metzman): Handle multiple crashes.
+      write_fuzz_result_to_sarif(result, target_path, self.workspace)
+    self.clusterfuzz_deployment.upload_crashes()
+    return bug_found
+
+
+def write_fuzz_result_to_sarif(fuzz_result, target_path, workspace):
+  """Write results of fuzzing to SARIF."""
+  logging.info('Writing sarif results.')
+  sarif_utils.write_stacktrace_to_sarif(fuzz_result.stacktrace, target_path,
+                                        workspace)
+
+
+class PruneTargetRunner(BaseFuzzTargetRunner):
+  """Runner that prunes corpora."""
+
+  @property
+  def quit_on_bug_found(self):
+    return False
+
+  def run_fuzz_target(self, fuzz_target_obj):
+    """Prunes with |fuzz_target_obj| and returns the result."""
+    result = fuzz_target_obj.prune()
+    logging.debug('Corpus path contents: %s.', os.listdir(result.corpus_path))
+    self.clusterfuzz_deployment.upload_corpus(fuzz_target_obj.target_name,
+                                              result.corpus_path,
+                                              replace=True)
+    return result
+
+  def cleanup_after_fuzz_target_run(self, fuzz_target_obj):  # pylint: disable=no-self-use
+    """Cleans up after pruning with |fuzz_target_obj|."""
+    fuzz_target_obj.free_disk_if_needed()
+
+
+NON_FUZZ_TARGETS_FOR_COVERAGE = {
+    'llvm-symbolizer',
+    'jazzer_agent_deploy.jar',
+    'jazzer_driver',
+    'jazzer_driver_with_sanitizer',
+}
+
+
+def is_coverage_fuzz_target(file_path):
+  """Returns whether |file_path| is a fuzz target binary for the purposes of a
+  coverage report. Inspired by infra/base-images/base-runner/coverage."""
+  if not os.path.isfile(file_path):
+    return False
+  if not utils.is_executable(file_path):
+    return False
+  filename = os.path.basename(file_path)
+  return filename not in NON_FUZZ_TARGETS_FOR_COVERAGE
+
+
+def get_coverage_fuzz_targets(out):
+  """Returns a list of fuzz targets in |out| for coverage."""
+  # We only want fuzz targets from the root because during the coverage build,
+  # a lot of the image's filesystem is copied into /out for the purpose of
+  # generating coverage reports.
+  fuzz_targets = []
+  for filename in os.listdir(out):
+    file_path = os.path.join(out, filename)
+    if is_coverage_fuzz_target(file_path):
+      fuzz_targets.append(file_path)
+  return fuzz_targets
+
+
+class CoverageTargetRunner(BaseFuzzTargetRunner):
+  """Runner that runs the 'coverage' command."""
+
+  @property
+  def quit_on_bug_found(self):
+    raise NotImplementedError('Not implemented for CoverageTargetRunner.')
+
+  def get_fuzz_targets(self):
+    """Returns fuzz targets in out directory."""
+    return get_coverage_fuzz_targets(self.workspace.out)
+
+  def run_fuzz_targets(self):
+    """Generates a coverage report. Always returns False since it never finds
+    any bugs."""
+    generate_coverage_report.generate_coverage_report(
+        self.fuzz_target_paths, self.workspace, self.clusterfuzz_deployment,
+        self.config)
+    return False
+
+  def run_fuzz_target(self, fuzz_target_obj):  # pylint: disable=no-self-use
+    """Fuzzes with |fuzz_target_obj| and returns the result."""
+    raise NotImplementedError('Not implemented for CoverageTargetRunner.')
+
+  def cleanup_after_fuzz_target_run(self, fuzz_target_obj):  # pylint: disable=no-self-use
+    """Cleans up after running |fuzz_target_obj|."""
+    raise NotImplementedError('Not implemented for CoverageTargetRunner.')
+
+
+class CiFuzzTargetRunner(BaseFuzzTargetRunner):
+  """Runner for fuzz targets used in CI (patch-fuzzing) context."""
+
+  @property
+  def quit_on_bug_found(self):
+    return True
+
+  def cleanup_after_fuzz_target_run(self, fuzz_target_obj):  # pylint: disable=no-self-use
+    """Cleans up after running |fuzz_target_obj|."""
+    fuzz_target_obj.free_disk_if_needed()
+
+  def run_fuzz_target(self, fuzz_target_obj):  # pylint: disable=no-self-use
+    return fuzz_target_obj.fuzz()
+
+
+class BatchFuzzTargetRunner(BaseFuzzTargetRunner):
+  """Runner for fuzz targets used in batch fuzzing context."""
+
+  @property
+  def quit_on_bug_found(self):
+    return False
+
+  def run_fuzz_target(self, fuzz_target_obj):
+    """Fuzzes with |fuzz_target_obj| and returns the result."""
+    result = fuzz_target_obj.fuzz(batch=True)
+    logging.debug('Corpus path contents: %s.', os.listdir(result.corpus_path))
+    self.clusterfuzz_deployment.upload_corpus(fuzz_target_obj.target_name,
+                                              result.corpus_path)
+    return result
+
+  def cleanup_after_fuzz_target_run(self, fuzz_target_obj):
+    """Cleans up after running |fuzz_target_obj|."""
+    # This must be done after we upload the corpus, otherwise it will be deleted
+    # before we get a chance to upload it. We can't delete the fuzz target
+    # because it is needed when we upload the build.
+    fuzz_target_obj.free_disk_if_needed(delete_fuzz_target=False)
+
+
+_MODE_RUNNER_MAPPING = {
+    'batch': BatchFuzzTargetRunner,
+    'coverage': CoverageTargetRunner,
+    'prune': PruneTargetRunner,
+    'code-change': CiFuzzTargetRunner,
+}
+
+
+def get_fuzz_target_runner(config):
+  """Returns a fuzz target runner object based on the mode of
+  |config|."""
+  runner = _MODE_RUNNER_MAPPING[config.mode](config)
+  logging.info('run fuzzers MODE is: %s. Runner: %s.', config.mode, runner)
+  return runner
+
+
+def run_fuzzers(config):  # pylint: disable=too-many-locals
+  """Runs fuzzers for a specific OSS-Fuzz project.
+
+  Args:
+    config: A RunFuzzTargetsConfig.
+
+  Returns:
+    A RunFuzzersResult enum value indicating what happened during fuzzing.
+  """
+  fuzz_target_runner = get_fuzz_target_runner(config)
+  if not fuzz_target_runner.initialize():
+    # We didn't fuzz at all because of internal (CIFuzz) errors. And we didn't
+    # find any bugs.
+    return RunFuzzersResult.ERROR
+
+  if not fuzz_target_runner.run_fuzz_targets():
+    # We fuzzed successfully, but didn't find any bugs (in the fuzz target).
+    return RunFuzzersResult.NO_BUG_FOUND
+
+  # We fuzzed successfully and found bug(s) in the fuzz targets.
+  return RunFuzzersResult.BUG_FOUND

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/run_fuzzers_entrypoint.py

@@ -0,0 +1,97 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Runs a specific OSS-Fuzz project's fuzzers for CI tools."""
+import logging
+import sys
+
+import config_utils
+import docker
+import logs
+import run_fuzzers
+
+# pylint: disable=c-extension-no-member
+# pylint gets confused because of the relative import of cifuzz.
+
+logs.init()
+
+
+def delete_unneeded_docker_images(config):
+  """Deletes unneeded docker images if running in an environment with low
+  disk space."""
+  if not config.low_disk_space:
+    return
+  logging.info('Deleting builder docker images to save disk space.')
+  project_image = docker.get_project_image_name(config.oss_fuzz_project_name)
+  images = [
+      project_image,
+      docker.BASE_BUILDER_TAG,
+      docker.BASE_BUILDER_TAG + '-go',
+      docker.BASE_BUILDER_TAG + '-javascript',
+      docker.BASE_BUILDER_TAG + '-jvm',
+      docker.BASE_BUILDER_TAG + '-python',
+      docker.BASE_BUILDER_TAG + '-rust',
+      docker.BASE_BUILDER_TAG + '-ruby',
+      docker.BASE_BUILDER_TAG + '-swift',
+  ]
+  docker.delete_images(images)
+
+
+def run_fuzzers_entrypoint():
+  """This is the entrypoint for the run_fuzzers github action.
+  This action can be added to any OSS-Fuzz project's workflow that uses
+  Github."""
+  config = config_utils.RunFuzzersConfig()
+  # The default return code when an error occurs.
+  returncode = 1
+  if config.dry_run:
+    # Sets the default return code on error to success.
+    returncode = 0
+
+  delete_unneeded_docker_images(config)
+  # Run the specified project's fuzzers from the build.
+  result = run_fuzzers.run_fuzzers(config)
+  if result == run_fuzzers.RunFuzzersResult.ERROR:
+    logging.error('Error occurred while running in workspace %s.',
+                  config.workspace)
+    return returncode
+  if result == run_fuzzers.RunFuzzersResult.BUG_FOUND:
+    logging.info('Bug found.')
+    if not config.dry_run:
+      # Return 2 when a bug was found by a fuzzer causing the CI to fail.
+      return 2
+  return 0
+
+
+def main():
+  """Runs project's fuzzers for CI tools.
+  This is the entrypoint for the run_fuzzers github action.
+
+  NOTE: libFuzzer binaries must be located in the $WORKSPACE/build-out
+  directory in order for this action to be used. This action will only fuzz the
+  binaries that are located in that directory. It is recommended that you add
+  the build_fuzzers action preceding this one.
+
+  NOTE: Any crash report will be in the filepath:
+  ${GITHUB_WORKSPACE}/out/testcase
+  This can be used in parallel with the upload-artifact action to surface the
+  logs.
+
+  Returns:
+    0 on success or nonzero on failure.
+  """
+  return run_fuzzers_entrypoint()
+
+
+if __name__ == '__main__':
+  sys.exit(main())

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/run_fuzzers_test.py

@@ -0,0 +1,475 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for running fuzzers."""
+import json
+import os
+import shutil
+import stat
+import sys
+import tempfile
+import unittest
+from unittest import mock
+
+import parameterized
+from pyfakefs import fake_filesystem_unittest
+
+import build_fuzzers
+import fuzz_target
+import run_fuzzers
+
+# pylint: disable=wrong-import-position
+INFRA_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.append(INFRA_DIR)
+
+import helper
+import test_helpers
+
+# NOTE: This integration test relies on
+# https://github.com/google/oss-fuzz/tree/master/projects/example project.
+EXAMPLE_PROJECT = 'example'
+
+# Location of files used for testing.
+TEST_DATA_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                              'test_data')
+
+MEMORY_FUZZER_DIR = os.path.join(TEST_DATA_PATH, 'memory')
+MEMORY_FUZZER = 'curl_fuzzer_memory'
+
+UNDEFINED_FUZZER_DIR = os.path.join(TEST_DATA_PATH, 'undefined')
+UNDEFINED_FUZZER = 'curl_fuzzer_undefined'
+
+FUZZ_SECONDS = 10
+
+
+class RunFuzzerIntegrationTestMixin:  # pylint: disable=too-few-public-methods,invalid-name
+  """Mixin for integration test classes that runbuild_fuzzers on builds of a
+  specific sanitizer."""
+  # These must be defined by children.
+  FUZZER_DIR = None
+  FUZZER = None
+
+  def setUp(self):
+    """Patch the environ so that we can execute runner scripts."""
+    test_helpers.patch_environ(self, runner=True)
+
+  def _test_run_with_sanitizer(self, fuzzer_dir, sanitizer):
+    """Calls run_fuzzers on fuzzer_dir and |sanitizer| and asserts
+    the run succeeded and that no bug was found."""
+    with test_helpers.temp_dir_copy(fuzzer_dir) as fuzzer_dir_copy:
+      config = test_helpers.create_run_config(fuzz_seconds=FUZZ_SECONDS,
+                                              workspace=fuzzer_dir_copy,
+                                              oss_fuzz_project_name='curl',
+                                              sanitizer=sanitizer)
+      result = run_fuzzers.run_fuzzers(config)
+    self.assertEqual(result, run_fuzzers.RunFuzzersResult.NO_BUG_FOUND)
+
+
+@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
+                 'INTEGRATION_TESTS=1 not set')
+class RunMemoryFuzzerIntegrationTest(RunFuzzerIntegrationTestMixin,
+                                     unittest.TestCase):
+  """Integration test for build_fuzzers with an MSAN build."""
+  FUZZER_DIR = MEMORY_FUZZER_DIR
+  FUZZER = MEMORY_FUZZER
+
+  def test_run_with_memory_sanitizer(self):
+    """Tests run_fuzzers with a valid MSAN build."""
+    self._test_run_with_sanitizer(self.FUZZER_DIR, 'memory')
+
+
+@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
+                 'INTEGRATION_TESTS=1 not set')
+class RunUndefinedFuzzerIntegrationTest(RunFuzzerIntegrationTestMixin,
+                                        unittest.TestCase):
+  """Integration test for build_fuzzers with an UBSAN build."""
+  FUZZER_DIR = UNDEFINED_FUZZER_DIR
+  FUZZER = UNDEFINED_FUZZER
+
+  def test_run_with_undefined_sanitizer(self):
+    """Tests run_fuzzers with a valid UBSAN build."""
+    self._test_run_with_sanitizer(self.FUZZER_DIR, 'undefined')
+
+
+class BaseFuzzTargetRunnerTest(unittest.TestCase):
+  """Tests BaseFuzzTargetRunner."""
+
+  def _create_runner(self, **kwargs):  # pylint: disable=no-self-use
+    defaults = {
+        'fuzz_seconds': FUZZ_SECONDS,
+        'oss_fuzz_project_name': EXAMPLE_PROJECT
+    }
+    for default_key, default_value in defaults.items():
+      if default_key not in kwargs:
+        kwargs[default_key] = default_value
+
+    config = test_helpers.create_run_config(**kwargs)
+    return run_fuzzers.BaseFuzzTargetRunner(config)
+
+  def _test_initialize_fail(self, expected_error_args, **create_runner_kwargs):
+    with mock.patch('logging.error') as mock_error:
+      runner = self._create_runner(**create_runner_kwargs)
+      self.assertFalse(runner.initialize())
+      mock_error.assert_called_with(*expected_error_args)
+
+  @parameterized.parameterized.expand([(0,), (None,), (-1,)])
+  def test_initialize_invalid_fuzz_seconds(self, fuzz_seconds):
+    """Tests initialize fails with an invalid fuzz seconds."""
+    expected_error_args = ('Fuzz_seconds argument must be greater than 1, '
+                           'but was: %s.', fuzz_seconds)
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      os.mkdir(out_path)
+      with mock.patch('utils.get_fuzz_targets') as mock_get_fuzz_targets:
+        mock_get_fuzz_targets.return_value = [
+            os.path.join(out_path, 'fuzz_target')
+        ]
+        self._test_initialize_fail(expected_error_args,
+                                   fuzz_seconds=fuzz_seconds,
+                                   workspace=tmp_dir)
+
+  def test_initialize_no_out_dir(self):
+    """Tests initialize fails with no out dir."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      expected_error_args = ('Out directory: %s does not exist.', out_path)
+      self._test_initialize_fail(expected_error_args, workspace=tmp_dir)
+
+  def test_initialize_nonempty_artifacts(self):
+    """Tests initialize with a file artifacts path."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      os.mkdir(out_path)
+      os.makedirs(os.path.join(tmp_dir, 'out'))
+      artifacts_path = os.path.join(tmp_dir, 'out', 'artifacts')
+      with open(artifacts_path, 'w') as artifacts_handle:
+        artifacts_handle.write('fake')
+      expected_error_args = (
+          'Artifacts path: %s exists and is not an empty directory.',
+          artifacts_path)
+      self._test_initialize_fail(expected_error_args, workspace=tmp_dir)
+
+  def test_initialize_bad_artifacts(self):
+    """Tests initialize with a non-empty artifacts path."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      os.mkdir(out_path)
+      artifacts_path = os.path.join(tmp_dir, 'out', 'artifacts')
+      os.makedirs(artifacts_path)
+      artifact_path = os.path.join(artifacts_path, 'artifact')
+      with open(artifact_path, 'w') as artifact_handle:
+        artifact_handle.write('fake')
+      expected_error_args = (
+          'Artifacts path: %s exists and is not an empty directory.',
+          artifacts_path)
+      self._test_initialize_fail(expected_error_args, workspace=tmp_dir)
+
+  @mock.patch('utils.get_fuzz_targets')
+  @mock.patch('logging.error')
+  def test_initialize_empty_artifacts(self, mock_log_error,
+                                      mock_get_fuzz_targets):
+    """Tests initialize with an empty artifacts dir."""
+    mock_get_fuzz_targets.return_value = ['fuzz-target']
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      os.mkdir(out_path)
+      artifacts_path = os.path.join(tmp_dir, 'out', 'artifacts')
+      os.makedirs(artifacts_path)
+      runner = self._create_runner(workspace=tmp_dir)
+      self.assertTrue(runner.initialize())
+      mock_log_error.assert_not_called()
+      self.assertTrue(os.path.isdir(artifacts_path))
+
+  @mock.patch('utils.get_fuzz_targets')
+  @mock.patch('logging.error')
+  def test_initialize_no_artifacts(self, mock_log_error, mock_get_fuzz_targets):
+    """Tests initialize with no artifacts dir (the expected setting)."""
+    mock_get_fuzz_targets.return_value = ['fuzz-target']
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      os.mkdir(out_path)
+      runner = self._create_runner(workspace=tmp_dir)
+      self.assertTrue(runner.initialize())
+      mock_log_error.assert_not_called()
+      self.assertTrue(os.path.isdir(os.path.join(tmp_dir, 'out', 'artifacts')))
+
+  def test_initialize_no_fuzz_targets(self):
+    """Tests initialize with no fuzz targets."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      os.makedirs(out_path)
+      expected_error_args = ('No fuzz targets were found in out directory: %s.',
+                             out_path)
+      self._test_initialize_fail(expected_error_args, workspace=tmp_dir)
+
+
+class CiFuzzTargetRunnerTest(fake_filesystem_unittest.TestCase):
+  """Tests that CiFuzzTargetRunner works as intended."""
+
+  def setUp(self):
+    self.setUpPyfakefs()
+
+  @mock.patch('clusterfuzz_deployment.OSSFuzz.upload_crashes')
+  @mock.patch('utils.get_fuzz_targets')
+  @mock.patch('run_fuzzers.CiFuzzTargetRunner.run_fuzz_target')
+  @mock.patch('run_fuzzers.CiFuzzTargetRunner.create_fuzz_target_obj')
+  def test_run_fuzz_targets_quits(self, mock_create_fuzz_target_obj,
+                                  mock_run_fuzz_target, mock_get_fuzz_targets,
+                                  mock_upload_crashes):
+    """Tests that run_fuzz_targets quits on the first crash it finds."""
+    workspace = 'workspace'
+    out_path = os.path.join(workspace, 'build-out')
+    self.fs.create_dir(out_path)
+    config = test_helpers.create_run_config(
+        fuzz_seconds=FUZZ_SECONDS,
+        workspace=workspace,
+        oss_fuzz_project_name=EXAMPLE_PROJECT)
+    runner = run_fuzzers.CiFuzzTargetRunner(config)
+
+    mock_get_fuzz_targets.return_value = ['target1', 'target2']
+    runner.initialize()
+    testcase = os.path.join(workspace, 'testcase')
+    self.fs.create_file(testcase)
+    stacktrace = 'stacktrace'
+    corpus_dir = 'corpus'
+    self.fs.create_dir(corpus_dir)
+    mock_run_fuzz_target.return_value = fuzz_target.FuzzResult(
+        testcase, stacktrace, corpus_dir)
+    magic_mock = mock.MagicMock()
+    magic_mock.target_name = 'target1'
+    mock_create_fuzz_target_obj.return_value = magic_mock
+    self.assertTrue(runner.run_fuzz_targets())
+    self.assertEqual(mock_run_fuzz_target.call_count, 1)
+    self.assertEqual(mock_upload_crashes.call_count, 1)
+
+
+class BatchFuzzTargetRunnerTest(fake_filesystem_unittest.TestCase):
+  """Tests that BatchFuzzTargetRunnerTest works as intended."""
+  WORKSPACE = 'workspace'
+  STACKTRACE = 'stacktrace'
+  CORPUS_DIR = 'corpus'
+
+  def setUp(self):
+    self.setUpPyfakefs()
+    out_dir = os.path.join(self.WORKSPACE, 'build-out')
+    self.fs.create_dir(out_dir)
+    self.testcase1 = os.path.join(out_dir, 'testcase-aaa')
+    self.fs.create_file(self.testcase1)
+    self.testcase2 = os.path.join(out_dir, 'testcase-bbb')
+    self.fs.create_file(self.testcase2)
+    self.config = test_helpers.create_run_config(fuzz_seconds=FUZZ_SECONDS,
+                                                 workspace=self.WORKSPACE,
+                                                 cfl_platform='github')
+
+  @mock.patch('utils.get_fuzz_targets', return_value=['target1', 'target2'])
+  @mock.patch('clusterfuzz_deployment.ClusterFuzzLite.upload_crashes')
+  @mock.patch('run_fuzzers.BatchFuzzTargetRunner.run_fuzz_target')
+  @mock.patch('run_fuzzers.BatchFuzzTargetRunner.create_fuzz_target_obj')
+  def test_run_fuzz_targets_quits(self, mock_create_fuzz_target_obj,
+                                  mock_run_fuzz_target, mock_upload_crashes, _):
+    """Tests that run_fuzz_targets doesn't quit on the first crash it finds."""
+    runner = run_fuzzers.BatchFuzzTargetRunner(self.config)
+    runner.initialize()
+
+    call_count = 0
+
+    def mock_run_fuzz_target_impl(_):
+      nonlocal call_count
+      if call_count == 0:
+        testcase = self.testcase1
+      elif call_count == 1:
+        testcase = self.testcase2
+      assert call_count != 2
+      call_count += 1
+      if not os.path.exists(self.CORPUS_DIR):
+        self.fs.create_dir(self.CORPUS_DIR)
+      return fuzz_target.FuzzResult(testcase, self.STACKTRACE, self.CORPUS_DIR)
+
+    mock_run_fuzz_target.side_effect = mock_run_fuzz_target_impl
+    magic_mock = mock.MagicMock()
+    magic_mock.target_name = 'target1'
+    mock_create_fuzz_target_obj.return_value = magic_mock
+    self.assertTrue(runner.run_fuzz_targets())
+    self.assertEqual(mock_run_fuzz_target.call_count, 2)
+    self.assertEqual(mock_upload_crashes.call_count, 1)
+
+
+class GetCoverageTargetsTest(unittest.TestCase):
+  """Tests for get_coverage_fuzz_targets."""
+
+  def test_get_fuzz_targets(self):
+    """Tests that get_coverage_fuzz_targets returns expected targets."""
+    with tempfile.TemporaryDirectory() as temp_dir:
+      # Setup.
+      fuzz_target_path = os.path.join(temp_dir, 'fuzz-target')
+      with open(fuzz_target_path, 'w') as file_handle:
+        file_handle.write('')
+      fuzz_target_st = os.stat(fuzz_target_path)
+      os.chmod(fuzz_target_path, fuzz_target_st.st_mode | stat.S_IEXEC)
+      non_fuzz_target1 = os.path.join(temp_dir, 'non-fuzz-target1')
+      with open(non_fuzz_target1, 'w') as file_handle:
+        file_handle.write('LLVMFuzzerTestOneInput')
+      subdir = os.path.join(temp_dir, 'subdir')
+      os.mkdir(subdir)
+      non_fuzz_target2 = os.path.join(subdir, 'non-fuzz-target1')
+      with open(non_fuzz_target2, 'w') as file_handle:
+        file_handle.write('LLVMFuzzerTestOneInput')
+
+      self.assertEqual(run_fuzzers.get_coverage_fuzz_targets(temp_dir),
+                       [fuzz_target_path])
+
+
+@unittest.skip('TODO(metzman): Fix this test')
+@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
+                 'INTEGRATION_TESTS=1 not set')
+class CoverageReportIntegrationTest(unittest.TestCase):
+  """Integration tests for coverage reports."""
+  SANITIZER = 'coverage'
+
+  def setUp(self):
+    test_helpers.patch_environ(self, runner=True)
+
+  @mock.patch('filestore.github_actions._upload_artifact_with_upload_js')
+  def test_coverage_report(self, _):
+    """Tests generation of coverage reports end-to-end, from building to
+    generation."""
+
+    with test_helpers.docker_temp_dir() as temp_dir:
+      shared = os.path.join(temp_dir, 'shared')
+      os.mkdir(shared)
+      copy_command = ('cp -r /opt/code_coverage /shared && '
+                      'cp $(which llvm-profdata) /shared && '
+                      'cp $(which llvm-cov) /shared')
+      assert helper.docker_run([
+          '-v', f'{shared}:/shared', 'ghcr.io/aixcc-finals/base-runner', 'bash',
+          '-c', copy_command
+      ])
+
+      os.environ['CODE_COVERAGE_SRC'] = os.path.join(shared, 'code_coverage')
+      os.environ['PATH'] += os.pathsep + shared
+      # Do coverage build.
+      build_config = test_helpers.create_build_config(
+          oss_fuzz_project_name=EXAMPLE_PROJECT,
+          project_repo_name='oss-fuzz',
+          workspace=temp_dir,
+          git_sha='0b95fe1039ed7c38fea1f97078316bfc1030c523',
+          base_commit='da0746452433dc18bae699e355a9821285d863c8',
+          sanitizer=self.SANITIZER,
+          cfl_platform='github',
+          # Needed for test not to fail because of permissions issues.
+          bad_build_check=False)
+      self.assertTrue(build_fuzzers.build_fuzzers(build_config))
+
+      # TODO(metzman): Get rid of this here and make 'compile' do this.
+      chmod_command = ('chmod -R +r /out && '
+                       'find /out -type d -exec chmod +x {} +')
+
+      assert helper.docker_run([
+          '-v', f'{os.path.join(temp_dir, "build-out")}:/out',
+          'ghcr.io/aixcc-finals/base-builder', 'bash', '-c', chmod_command
+      ])
+
+      # Generate report.
+      run_config = test_helpers.create_run_config(fuzz_seconds=FUZZ_SECONDS,
+                                                  workspace=temp_dir,
+                                                  sanitizer=self.SANITIZER,
+                                                  mode='coverage',
+                                                  cfl_platform='github')
+      result = run_fuzzers.run_fuzzers(run_config)
+      self.assertEqual(result, run_fuzzers.RunFuzzersResult.NO_BUG_FOUND)
+      expected_summary_path = os.path.join(
+          TEST_DATA_PATH, 'example_coverage_report_summary.json')
+      with open(expected_summary_path) as file_handle:
+        expected_summary = json.loads(file_handle.read())
+        actual_summary_path = os.path.join(temp_dir, 'cifuzz-coverage',
+                                           'report', 'linux', 'summary.json')
+      with open(actual_summary_path) as file_handle:
+        actual_summary = json.loads(file_handle.read())
+      self.assertEqual(expected_summary, actual_summary)
+
+
+@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
+                 'INTEGRATION_TESTS=1 not set')
+class RunAddressFuzzersIntegrationTest(RunFuzzerIntegrationTestMixin,
+                                       unittest.TestCase):
+  """Integration tests for build_fuzzers with an ASAN build."""
+
+  BUILD_DIR_NAME = 'cifuzz-latest-build'
+
+  def test_new_bug_found(self):
+    """Tests run_fuzzers with a valid ASAN build."""
+    # Set the first return value to True, then the second to False to
+    # emulate a bug existing in the current PR but not on the downloaded
+    # OSS-Fuzz build.
+    with mock.patch('fuzz_target.FuzzTarget.is_reproducible',
+                    side_effect=[True, False]):
+      with tempfile.TemporaryDirectory() as tmp_dir:
+        workspace = os.path.join(tmp_dir, 'workspace')
+        shutil.copytree(TEST_DATA_PATH, workspace)
+        config = test_helpers.create_run_config(
+            fuzz_seconds=FUZZ_SECONDS,
+            workspace=workspace,
+            oss_fuzz_project_name=EXAMPLE_PROJECT)
+        result = run_fuzzers.run_fuzzers(config)
+        self.assertEqual(result, run_fuzzers.RunFuzzersResult.BUG_FOUND)
+
+  @mock.patch('fuzz_target.FuzzTarget.is_reproducible',
+              side_effect=[True, True])
+  def test_old_bug_found(self, _):
+    """Tests run_fuzzers with a bug found in OSS-Fuzz before."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      workspace = os.path.join(tmp_dir, 'workspace')
+      shutil.copytree(TEST_DATA_PATH, workspace)
+      config = test_helpers.create_run_config(
+          fuzz_seconds=FUZZ_SECONDS,
+          workspace=workspace,
+          oss_fuzz_project_name=EXAMPLE_PROJECT)
+      result = run_fuzzers.run_fuzzers(config)
+      self.assertEqual(result, run_fuzzers.RunFuzzersResult.NO_BUG_FOUND)
+
+  def test_invalid_build(self):
+    """Tests run_fuzzers with an invalid ASAN build."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      out_path = os.path.join(tmp_dir, 'build-out')
+      os.mkdir(out_path)
+      config = test_helpers.create_run_config(
+          fuzz_seconds=FUZZ_SECONDS,
+          workspace=tmp_dir,
+          oss_fuzz_project_name=EXAMPLE_PROJECT)
+      result = run_fuzzers.run_fuzzers(config)
+    self.assertEqual(result, run_fuzzers.RunFuzzersResult.ERROR)
+
+
+class GetFuzzTargetRunnerTest(unittest.TestCase):
+  """Tests for get_fuzz_fuzz_target_runner."""
+
+  @parameterized.parameterized.expand([
+      ('batch', run_fuzzers.BatchFuzzTargetRunner),
+      ('code-change', run_fuzzers.CiFuzzTargetRunner),
+      ('coverage', run_fuzzers.CoverageTargetRunner)
+  ])
+  def test_get_fuzz_target_runner(self, mode, fuzz_target_runner_cls):
+    """Tests that get_fuzz_target_runner returns the correct runner based on the
+    specified mode."""
+    with tempfile.TemporaryDirectory() as tmp_dir:
+      run_config = test_helpers.create_run_config(
+          fuzz_seconds=FUZZ_SECONDS,
+          workspace=tmp_dir,
+          oss_fuzz_project_name='example',
+          mode=mode)
+      runner = run_fuzzers.get_fuzz_target_runner(run_config)
+      self.assertTrue(isinstance(runner, fuzz_target_runner_cls))
+
+
+if __name__ == '__main__':
+  unittest.main()

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/sarif_utils.py

@@ -0,0 +1,251 @@
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for outputting SARIF data."""
+import copy
+import json
+import logging
+import os
+
+from clusterfuzz import stacktraces
+
+SARIF_RULES = [
+    {
+        'id': 'no-crashes',
+        'shortDescription': {
+            'text': 'Don\'t crash'
+        },
+        'helpUri': 'https://cwe.mitre.org/data/definitions/416.html',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id': 'heap-use-after-free',
+        'shortDescription': {
+            'text': 'Use of a heap-object after it has been freed.'
+        },
+        'helpUri': 'https://cwe.mitre.org/data/definitions/416.html',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id': 'heap-buffer-overflow',
+        'shortDescription': {
+            'text': 'A read or write past the end of a heap buffer.'
+        },
+        'helpUri': 'https://cwe.mitre.org/data/definitions/122.html',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id': 'stack-buffer-overflow',
+        'shortDescription': {
+            'text': 'A read or write past the end of a stack buffer.'
+        },
+        'helpUri': 'https://cwe.mitre.org/data/definitions/121.html',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id': 'global-buffer-overflow',
+        'shortDescription': {
+            'text': 'A read or write past the end of a global buffer.'
+        },
+        'helpUri': 'https://cwe.mitre.org/data/definitions/121.html',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id': 'stack-use-after-return',
+        'shortDescription': {
+            'text':
+                'A stack-based variable has been used after the function returned.'
+        },
+        'helpUri': 'https://cwe.mitre.org/data/definitions/562.html',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id': 'stack-use-after-scope',
+        'shortDescription': {
+            'text':
+                'A stack-based variable has been used outside of the scope in which it exists.'
+        },
+        'helpUri': 'https://cwe.mitre.org/data/definitions/562.html',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id': 'initialization-order-fiasco',
+        'shortDescription': {
+            'text': 'Problem with order of initialization of global objects.'
+        },
+        'helpUri': 'https://isocpp.org/wiki/faq/ctors#static-init-order',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id':
+            'direct-leak',
+        'shortDescription': {
+            'text': 'Memory is leaked.'
+        },
+        'helpUri':
+            'https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+    {
+        'id':
+            'indirect-leak',
+        'shortDescription': {
+            'text': 'Memory is leaked.'
+        },
+        'helpUri':
+            'https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer',
+        'properties': {
+            'category': 'Crashes'
+        }
+    },
+]
+SARIF_DATA = {
+    'version':
+        '2.1.0',
+    '$schema':
+        'http://json.schemastore.org/sarif-2.1.0-rtm.4',
+    'runs': [{
+        'tool': {
+            'driver': {
+                'name': 'ClusterFuzzLite/CIFuzz',
+                'informationUri': 'https://google.github.io/clusterfuzzlite/',
+                'rules': SARIF_RULES,
+            }
+        },
+        'results': []
+    }]
+}
+
+SRC_ROOT = '/src/'
+
+
+def redact_src_path(src_path):
+  """Redact the src path so that it can be reported to users."""
+  src_path = os.path.normpath(src_path)
+  if src_path.startswith(SRC_ROOT):
+    src_path = src_path[len(SRC_ROOT):]
+
+  src_path = os.sep.join(src_path.split(os.sep)[1:])
+  return src_path
+
+
+def get_error_frame(crash_info):
+  """Returns the stackframe where the error occurred."""
+  if not crash_info.crash_state:
+    return None
+  state = crash_info.crash_state.split('\n')[0]
+  logging.info('state: %s frames %s, %s', state, crash_info.frames,
+               [f.function_name for f in crash_info.frames[0]])
+
+  for crash_frames in crash_info.frames:
+    for frame in crash_frames:
+      # TODO(metzman): Do something less fragile here.
+      if frame.function_name is None:
+        continue
+      if state in frame.function_name:
+        return frame
+  return None
+
+
+def get_error_source_info(crash_info):
+  """Returns the filename and the line where the bug occurred."""
+  frame = get_error_frame(crash_info)
+  if not frame:
+    return (None, 1)
+  try:
+    return redact_src_path(frame.filename), int(frame.fileline or 1)
+  except TypeError:
+    return (None, 1)
+
+
+def get_rule_index(crash_type):
+  """Returns the rule index describe the rule that |crash_type| ran afoul of."""
+  # Don't include "READ" or "WRITE" or number of bytes.
+  crash_type = crash_type.replace('\n', ' ').split(' ')[0].lower()
+  logging.info('crash_type: %s.', crash_type)
+  for idx, rule in enumerate(SARIF_RULES):
+    if rule['id'] == crash_type:
+      logging.info('Rule index: %d.', idx)
+      return idx
+
+  return get_rule_index('no-crashes')
+
+
+def get_sarif_data(stacktrace, target_path):
+  """Returns a description of the crash in SARIF."""
+  data = copy.deepcopy(SARIF_DATA)
+  if stacktrace is None:
+    return data
+
+  fuzz_target = os.path.basename(target_path)
+  stack_parser = stacktraces.StackParser(fuzz_target=fuzz_target,
+                                         symbolized=True,
+                                         detect_ooms_and_hangs=True,
+                                         include_ubsan=True)
+  crash_info = stack_parser.parse(stacktrace)
+  error_source_info = get_error_source_info(crash_info)
+  rule_idx = get_rule_index(crash_info.crash_type)
+  rule_id = SARIF_RULES[rule_idx]['id']
+  uri = error_source_info[0]
+
+  result = {
+      'level': 'error',
+      'message': {
+          'text': crash_info.crash_type
+      },
+      'locations': [{
+          'physicalLocation': {
+              'artifactLocation': {
+                  'uri': uri,
+                  'index': 0
+              },
+              'region': {
+                  'startLine': error_source_info[1],
+                  # We don't have this granualarity fuzzing.
+                  'startColumn': 1,
+              }
+          }
+      }],
+      'ruleId': rule_id,
+      'ruleIndex': rule_idx
+  }
+  if uri:
+    data['runs'][0]['results'].append(result)
+  return data
+
+
+def write_stacktrace_to_sarif(stacktrace, target_path, workspace):
+  """Writes a description of the crash in stacktrace to a SARIF file."""
+  data = get_sarif_data(stacktrace, target_path)
+  if not os.path.exists(workspace.sarif):
+    os.makedirs(workspace.sarif)
+  with open(os.path.join(workspace.sarif, 'results.sarif'), 'w') as file_handle:
+    file_handle.write(json.dumps(data))

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/sarif_utils_test.py

@@ -0,0 +1,128 @@
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Tests for sarif_utils.py"""
+import os
+import unittest
+from unittest import mock
+
+import sarif_utils
+
+CRASH_INFO_FILELINE = 403
+
+TEST_DATA = os.path.join(os.path.dirname(__file__), 'test_data')
+
+
+class GetSarifDataTest(unittest.TestCase):
+  """Tests for get_sarif_data."""
+
+  def setUp(self):
+    self.maxDiff = None  # pylint: disable=invalid-name
+
+  def test_get_sarif_data_none(self):
+    """Tests get_sarif_data when there was no crash."""
+    self.assertEqual(sarif_utils.get_sarif_data(None, '/root/target'),
+                     sarif_utils.SARIF_DATA)
+
+  def test_ordinary_case(self):
+    stacktrace_filename = os.path.join(TEST_DATA,
+                                       'sarif_utils_systemd_stack.txt')
+    with open(stacktrace_filename, 'r') as fp:
+      stacktrace = fp.read()
+    expected_result = {
+        'level': 'error',
+        'message': {
+            'text': 'Heap-buffer-overflow\nREAD 4'
+        },
+        'locations': [{
+            'physicalLocation': {
+                'artifactLocation': {
+                    'uri': 'src/core/fuzz-unit-file.c',
+                    'index': 0
+                },
+                'region': {
+                    'startLine': 30,
+                    # We don't have this granualarity fuzzing.
+                    'startColumn': 1,
+                }
+            }
+        }],
+        'ruleId': 'heap-buffer-overflow',
+        'ruleIndex': 2
+    }
+    actual_result = sarif_utils.get_sarif_data(
+        stacktrace, '/root/target')['runs'][0]['results'][0]
+    self.assertEqual(actual_result, expected_result)
+
+  def test_llvmfuzzertestoneinput_case(self):
+    stacktrace_filename = os.path.join(TEST_DATA,
+                                       'sarif_utils_only_llvmfuzzer_stack.txt')
+    with open(stacktrace_filename, 'r') as fp:
+      stacktrace = fp.read()
+    actual_result = sarif_utils.get_sarif_data(
+        stacktrace, '/root/target')['runs'][0]['results']
+    self.assertEqual(actual_result, [])
+
+  def test_msan(self):
+    """Tests that MSAN stacktraces don't exception."""
+    stacktrace_filename = os.path.join(TEST_DATA, 'sarif_utils_msan_stack.txt')
+    with open(stacktrace_filename, 'r') as fp:
+      stacktrace = fp.read()
+
+    actual_result = sarif_utils.get_sarif_data(stacktrace, '/root/target')
+
+
+class RedactSrcPathTest(unittest.TestCase):
+  """Tests for redact_src_path."""
+
+  def test_redact_src_path(self):
+    """Tests redact_src_path."""
+    path = '/src/src-repo/subdir/file'
+    self.assertEqual(sarif_utils.redact_src_path(path), 'subdir/file')
+
+
+def _get_mock_crash_info():
+  """Returns a mock crash_info to be used in tests."""
+  stack_frame = mock.MagicMock()
+  stack_frame.filename = '/src/repo-dir/sub/vuln.cc'
+  stack_frame.function_name = 'vuln_func'
+  stack_frame.fileline = CRASH_INFO_FILELINE
+  crash1_frames = [stack_frame, stack_frame]
+  frames = [crash1_frames]
+  crash_info = mock.MagicMock()
+  crash_info.frames = frames
+  crash_info.crash_state = 'vuln_func\nvuln_func0\nvuln_func1'
+  return crash_info
+
+
+class GetErrorSourceInfoTest(unittest.TestCase):
+  """Tests for get_error_source_info."""
+
+  def test_redact_src_path(self):
+    """Tests that get_error_source_info finds the right source info."""
+    crash_info = _get_mock_crash_info()
+    source_info = sarif_utils.get_error_source_info(crash_info)
+    expected_source_info = ('sub/vuln.cc', CRASH_INFO_FILELINE)
+    self.assertEqual(source_info, expected_source_info)
+
+
+class GetRuleIndexTest(unittest.TestCase):
+  """Tests for get_rule_index."""
+  CRASH_INFO_CRASH_TYPE = 'Heap-use-after-free READ 8'
+
+  def test_get_rule_index(self):
+    """Tests that get_rule_index finds the right rule index."""
+    index = sarif_utils.get_rule_index(self.CRASH_INFO_CRASH_TYPE)
+    self.assertEqual(sarif_utils.SARIF_RULES[index]['id'],
+                     'heap-use-after-free')
+    self.assertEqual(sarif_utils.get_rule_index('no-crashes'), 0)

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/test_helpers.py

@@ -0,0 +1,117 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Contains convenient helpers for writing tests."""
+
+import contextlib
+import os
+import sys
+import shutil
+import tempfile
+from unittest import mock
+
+import config_utils
+import docker
+import workspace_utils
+
+INFRA_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+# pylint: disable=wrong-import-position,import-error
+sys.path.append(INFRA_DIR)
+
+import helper
+
+
+# TODO(metzman): Get rid of these decorators.
+@mock.patch('config_utils._is_dry_run', return_value=True)
+@mock.patch('platform_config.BasePlatformConfig.project_src_path',
+            return_value=None)
+@mock.patch('os.path.basename', return_value=None)
+def _create_config(config_cls, _, __, ___, **kwargs):
+  """Creates a config object from |config_cls| and then sets every attribute
+  that is a key in |kwargs| to the corresponding value. Asserts that each key in
+  |kwargs| is an attribute of config."""
+  with mock.patch('config_utils.BaseConfig.validate', return_value=True):
+    config = config_cls()
+  for key, value in kwargs.items():
+    assert hasattr(config, key), 'Config doesn\'t have attribute: ' + key
+    setattr(config, key, value)
+
+  return config
+
+
+def create_build_config(**kwargs):
+  """Wrapper around _create_config for build configs."""
+  return _create_config(config_utils.BuildFuzzersConfig, **kwargs)
+
+
+def create_run_config(**kwargs):
+  """Wrapper around _create_config for run configs."""
+  return _create_config(config_utils.RunFuzzersConfig, **kwargs)
+
+
+def create_workspace(workspace_path='/workspace'):
+  """Returns a workspace located at |workspace_path| ('/workspace' by
+  default)."""
+  config = create_run_config(workspace=workspace_path)
+  return workspace_utils.Workspace(config)
+
+
+def patch_environ(testcase_obj, env=None, empty=False, runner=False):
+  """Patch environment. |testcase_obj| is the unittest.TestCase that contains
+  tests. |env|, if specified, is a dictionary of environment variables to start
+  from. If |empty| is True then the new patched environment will be empty. If
+  |runner| is True then the necessary environment variables will be set to run
+  the scripts from base-runner."""
+  if env is None:
+    env = {}
+
+  patcher = mock.patch.dict(os.environ, env)
+  testcase_obj.addCleanup(patcher.stop)
+  patcher.start()
+  if empty:
+    for key in os.environ.copy():
+      del os.environ[key]
+
+  if runner:
+    # Add the scripts for base-runner to the path since the wont be in
+    # /usr/local/bin on host machines during testing.
+    base_runner_dir = os.path.join(INFRA_DIR, 'base-images', 'base-runner')
+    os.environ['PATH'] = (os.environ.get('PATH', '') + os.pathsep +
+                          base_runner_dir)
+    if 'GOPATH' not in os.environ:
+      # A GOPATH must be set or else the coverage script fails, even for getting
+      # the coverage of non-Go programs.
+      os.environ['GOPATH'] = '/root/go'
+
+
+@contextlib.contextmanager
+def temp_dir_copy(directory):
+  """Context manager that yields a temporary copy of |directory|."""
+  with tempfile.TemporaryDirectory() as temp_dir:
+    temp_copy_path = os.path.join(temp_dir, os.path.basename(directory))
+    shutil.copytree(directory, temp_copy_path)
+    yield temp_copy_path
+
+
+@contextlib.contextmanager
+def docker_temp_dir():
+  """Returns a temporary a directory that is useful for use with docker. On
+  cleanup this contextmanager uses docker to delete the directory's contents so
+  that if anything is owned by root it can be deleted (which
+  tempfile.TemporaryDirectory() cannot do) by non-root users."""
+  with tempfile.TemporaryDirectory() as temp_dir:
+    yield temp_dir
+    helper.docker_run([
+        '-v', f'{temp_dir}:/temp_dir', '-t', docker.BASE_BUILDER_TAG,
+        '/bin/bash', '-c', 'rm -rf /temp_dir/*'
+    ])

local-test-commons-compress-delta-03/fuzz-tooling/infra/cifuzz/workspace_utils.py

@@ -0,0 +1,85 @@
+# Copyright 2021 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""Module for representing the workspace directory which CIFuzz uses."""
+
+import os
+import shutil
+
+
+class Workspace:
+  """Class representing the workspace directory."""
+
+  def __init__(self, config):
+    self.workspace = config.workspace
+
+  def initialize_dir(self, directory):  # pylint: disable=no-self-use
+    """Creates directory if it doesn't already exist, otherwise does nothing."""
+    os.makedirs(directory, exist_ok=True)
+
+  @property
+  def repo_storage(self):
+    """The parent directory for repo storage."""
+    return os.path.join(self.workspace, 'storage')
+
+  @property
+  def out(self):
+    """The out directory used for storing the fuzzer build built by
+    build_fuzzers."""
+    # Don't use 'out' because it needs to be used by artifacts.
+    return os.path.join(self.workspace, 'build-out')
+
+  @property
+  def work(self):
+    """The directory used as the work directory for the fuzzer build/run."""
+    return os.path.join(self.workspace, 'work')
+
+  @property
+  def artifacts(self):
+    """The directory used to store artifacts for download by CI-system users."""
+    # This is hardcoded by a lot of clients, so we need to use this.
+    return os.path.join(self.workspace, 'out', 'artifacts')
+
+  @property
+  def clusterfuzz_build(self):
+    """The directory where builds from ClusterFuzz are stored."""
+    return os.path.join(self.workspace, 'cifuzz-prev-build')
+
+  @property
+  def clusterfuzz_coverage(self):
+    """The directory where builds from ClusterFuzz are stored."""
+    return os.path.join(self.workspace, 'cifuzz-prev-coverage')
+
+  @property
+  def coverage_report(self):
+    """The directory where coverage reports generated by cifuzz are put."""
+    return os.path.join(self.workspace, 'cifuzz-coverage')
+
+  @property
+  def corpora(self):
+    """The directory where corpora from ClusterFuzz are stored."""
+    return os.path.join(self.workspace, 'cifuzz-corpus')
+
+  @property
+  def pruned_corpora(self):
+    """The directory where pruned corpora are stored."""
+    return os.path.join(self.workspace, 'cifuzz-pruned-corpus')
+
+  @property
+  def sarif(self):
+    """The directory where sarif files are stored."""
+    return os.path.join(self.workspace, 'cifuzz-sarif')
+
+  def make_repo_for_sarif(self, repo_manager):
+    """Copies the repo over for the sarif upload GitHub action."""
+    return shutil.copytree(repo_manager.repo_dir, self.sarif, symlinks=True)

local-test-commons-compress-delta-03/fuzz-tooling/infra/experimental/SystemSan/Makefile

@@ -0,0 +1,41 @@
+.POSIX:
+CXX     = clang++
+CFLAGS = -std=c++17 -Wall -Wextra -O3 -g3 -Werror
+
+all: SystemSan target target_file target_dns
+
+SystemSan: SystemSan.cpp inspect_dns.cpp inspect_utils.cpp
+	$(CXX) $(CFLAGS) -lpthread -o $@ $^
+
+# Needs atheris.
+python-test: all
+	./SystemSan python shell_injection_poc_fuzzer.py
+
+target: target.cpp
+	$(CXX) $(CFLAGS) -fsanitize=address,fuzzer -o $@ $^
+
+target_file: target_file.cpp
+	$(CXX) $(CFLAGS) -fsanitize=address,fuzzer -o $@ $^
+
+target_dns: target_dns.cpp
+	$(CXX) $(CFLAGS) -fsanitize=address,fuzzer -o $@ $^
+
+test:  all vuln.dict
+	./SystemSan ./target -dict=vuln.dict
+	./SystemSan ./target_file -dict=vuln.dict
+	./SystemSan ./target_dns -dict=vuln.dict
+
+pytorch-lightning-1.5.10:
+	cp SystemSan.cpp PoEs/pytorch-lightning-1.5.10/; \
+	cd PoEs/pytorch-lightning-1.5.10/; \
+	docker build . --tag syssan_pytorch-lightning; \
+	docker run -t systemsan_pytorch-lightning:latest;
+
+node-shell-quote-v1.7.3:
+	cp SystemSan.cpp PoEs/node-shell-quote-v1.7.3/; \
+	cd PoEs/node-shell-quote-v1.7.3/; \
+	docker build . --tag systemsan_node-shell-quote; \
+	docker run -t systemsan_node-shell-quote:latest;
+
+clean:
+	rm -f SystemSan /tmp/tripwire target target_file target_dns