Add files using upload-large-folder tool

local-test-zookeeper-full-01/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-zookeeper-full-01/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-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/cifuzz.ts

@@ -0,0 +1,70 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import {println} from './logger';
+
+/**
+ * Creates a CIFuzz template
+ * @param language
+ * @param projectName
+ * @param secondToRun
+ * @returns
+ */
+export function cifuzzGenerator(
+  language: string,
+  projectName: string,
+  secondToRun: Number
+) {
+  println('Exporting cifuzz logic ' + language);
+
+  const cifuzzTemplate = `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: '${projectName}'
+        language: ${language}
+    - name: Run Fuzzers
+        uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+        with:
+        oss-fuzz-project-name: '${projectName}'
+        language: ${language}
+        fuzz-seconds: ${secondToRun}
+        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`;
+
+  return cifuzzTemplate;
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commandUtils.ts

@@ -0,0 +1,17 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+export const commandHistory: any[] = [];

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdBuildFuzzerFromWorkspace.ts

@@ -0,0 +1,80 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import * as vscode from 'vscode';
+import {println} from '../logger';
+import {commandHistory} from '../commandUtils';
+import {
+  hasOssFuzzInWorkspace,
+  getOssFuzzWorkspaceProjectName,
+  setStatusText,
+} from '../utils';
+import {buildFuzzersFromWorkspace} from '../ossfuzzWrappers';
+
+export async function cmdInputCollectorBuildFuzzersFromWorkspace() {
+  let ossFuzzProjectName = '';
+  // First determine if we have a name in the workspace
+  if (await hasOssFuzzInWorkspace()) {
+    /**
+     * The fuzzers are in the workspace, as opposed to e.g. the oss-fuzz dirctory.
+     */
+    ossFuzzProjectName = await getOssFuzzWorkspaceProjectName();
+  } else {
+    // If we did not have that, ask the user.
+
+    const ossFuzzProjectNameInput = await vscode.window.showInputBox({
+      value: '',
+      placeHolder: 'The OSS-Fuzz project name',
+    });
+    if (!ossFuzzProjectNameInput) {
+      println('Did not get a ossFuzzTargetProject');
+      return false;
+    }
+    ossFuzzProjectName = ossFuzzProjectNameInput.toString();
+  }
+
+  // Create an history object
+  const args = new Object({
+    projectName: ossFuzzProjectName,
+    sanitizer: '',
+    toClean: false,
+  });
+
+  const commandObject = new Object({
+    commandType: 'oss-fuzz.WSBuildFuzzers',
+    Arguments: args,
+    dispatcherFunc: cmdDispatchBuildFuzzersFromWorkspace,
+  });
+  console.log('L1: ' + commandHistory.length);
+  commandHistory.push(commandObject);
+
+  await cmdDispatchBuildFuzzersFromWorkspace(args);
+  return true;
+}
+
+async function cmdDispatchBuildFuzzersFromWorkspace(args: any) {
+  await setStatusText('Building fuzzers: starting');
+  const res = await buildFuzzersFromWorkspace(
+    args.projectName,
+    args.sanitizer,
+    args.toClean
+  );
+  if (res) {
+    await setStatusText('Building fuzzers: finished');
+  } else {
+    await setStatusText('Building fuzzers: failed');
+  }
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdCreateOSSFuzzSetup.ts

@@ -0,0 +1,28 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import {setupProjectInitialFiles} from '../projectIntegrationHelper';
+import {setStatusText} from '../utils';
+
+export async function createOssFuzzSetup() {
+  await setStatusText('Creating OSS-Fuzz setup: starting');
+  const res = await setupProjectInitialFiles(false);
+  if (res) {
+    await setStatusText('Creating OSS-Fuzz setup: finished');
+  } else {
+    await setStatusText('Creating OSS-Fuzz setup: failed');
+  }
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdDispatcherGenerateClusterfuzzLite.ts

@@ -0,0 +1,38 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Command for generating template fuzzers. This is a short-cut for rapid
+ * prototyping as well as an archive for inspiration.
+ */
+import * as vscode from 'vscode';
+import {setStatusText} from '../utils';
+
+import {setupProjectInitialFiles} from '../projectIntegrationHelper';
+
+export async function cmdDispatcherGenerateClusterfuzzLite(
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  _context: vscode.ExtensionContext
+) {
+  await setStatusText('Creating OSS-Fuzz setup: starting');
+  const res = await setupProjectInitialFiles(true);
+  if (res) {
+    await setStatusText('Creating OSS-Fuzz setup: finished');
+  } else {
+    await setStatusText('Creating OSS-Fuzz setup: failed');
+  }
+  return;
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdRedo.ts

@@ -0,0 +1,35 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import {commandHistory} from '../commandUtils';
+
+/**
+ * Rerun the latest command
+ */
+export async function cmdDispatcherRe() {
+  if (commandHistory.length === 0) {
+    console.log('command history is empty');
+    return false;
+  }
+
+  const commandObj: any = commandHistory[commandHistory.length - 1];
+
+  console.log('Redoing');
+  console.log(commandObj.commandType);
+  await commandObj.dispatcherFunc(commandObj.Arguments);
+  //await commandObj.dispatcherFunc(commandObj.args);
+  return true;
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdReproduceTestcase.ts

@@ -0,0 +1,167 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import * as vscode from 'vscode';
+const fs = require('fs');
+import {println} from '../logger';
+import {commandHistory} from '../commandUtils';
+import {systemSyncLogIfFailure} from '../utils';
+import {buildFuzzersFromWorkspace} from '../ossfuzzWrappers';
+import {extensionConfig} from '../config';
+const readline = require('readline');
+
+export async function cmdInputCollectorReproduceTestcase() {
+  // Runs a fuzzer from a given project.
+  const crashFileInput = await vscode.window.showInputBox({
+    value: '',
+    placeHolder: 'The ID of the testcase.',
+  });
+  if (!crashFileInput) {
+    return;
+  }
+  // Create an history object and append it to the command history.
+  const args = new Object({
+    crashFile: crashFileInput.toString(),
+  });
+
+  const commandObject = new Object({
+    commandType: 'oss-fuzz.ReproduceFuzzer',
+    Arguments: args,
+    dispatcherFunc: cmdDispatchReproduceTestcase,
+  });
+  commandHistory.push(commandObject);
+
+  await cmdDispatchReproduceTestcase(args);
+  return true;
+}
+
+async function cmdDispatchReproduceTestcase(args: any) {
+  await reproduceTestcase(args.crashFile);
+}
+
+export async function reproduceTestcase(crashInfoFileInput: string) {
+  println('Reproducing testcase for ' + crashInfoFileInput);
+  println('Checking directory: ' + extensionConfig.crashesDirectory);
+
+  const crashInfoFile =
+    extensionConfig.crashesDirectory + '/' + crashInfoFileInput + '.info';
+  println(crashInfoFile);
+  try {
+    if (fs.existsSync(crashInfoFile)) {
+      println('File exists');
+    } else {
+      println('Crash file does not exist');
+      return;
+    }
+  } catch (err) {
+    console.error(err);
+    return;
+  }
+
+  // At this point the file exists
+  const r = readline.createInterface({
+    input: fs.createReadStream(crashInfoFile),
+  });
+
+  let targetProject = 'N/A';
+  let targetFuzzer = 'N/A';
+  // Logic for passing the file. This is based off of clusterfuzz monorail reports,
+  // and the intention is the file needs to be a copy of:
+  //
+  // Project: project-name
+  // Fuzzing Engine: libFuzzer
+  // Fuzz Target: fuzzer-name
+  //
+  // Example:
+  // The following URL: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=59747
+  // has the bug information:
+  // """
+  // Project: my-fuzzing-project
+  // Fuzzing Engine: libFuzzer
+  // Fuzz Target: the-fuzzer-name-fuzz-parseXX
+  // Job Type: libfuzzer_asan_my-fuzzing-project
+  // Platform Id: linux
+  // """
+  // and a link to a reproducer test case:
+  // https://oss-fuzz.com/download?testcase_id=5009071179431936
+  // which, when accessed will download the file
+  // clusterfuzz-testcase-minimized-flb-it-fuzz-config_map_fuzzer_OSSFUZZ-5009071179431936
+  //
+  // To enable reproducing of this issue we need to:
+  // - 1) Download the crash file and place it in the directory given in config.ts
+  //      and "crashesDirectory" variable.
+  // - 2) create a file "5009071179431936.info" and paste the information above
+  //      (Project:... Fuzz Target: ...) into the file. This information is
+  //      needed because we need to know project name and fuzzer name in order
+  //      to reproduce the crash.
+  // - 3) the reproducer can now be reproduced using the reproduce command
+  //      with argument "5009071179431936" as argument.
+  r.on('line', (text: string) => {
+    println(text);
+    if (text.startsWith('Project: ')) {
+      println('Starts with project');
+      println(text.split('Project: ').toString());
+      targetProject = text.split('Project: ')[1];
+    } else if (text.startsWith('Fuzzing Engine: ')) {
+      println('Starts with fuzzing engine');
+    } else if (text.startsWith('Fuzz Target:')) {
+      println('Starts with Fuzz Target');
+      targetFuzzer = text.split('Fuzz Target: ')[1];
+    } else if (text.startsWith('Job Type:')) {
+      println('Starts with Job Type');
+    }
+  });
+
+  r.on('close', async () => {
+    println('Target project: ' + targetProject);
+    println('Target fuzzer: ' + targetFuzzer);
+
+    // Build a fresh version of the project.
+    const buildResult: boolean = await buildFuzzersFromWorkspace(
+      targetProject,
+      '',
+      true
+    );
+    if (!buildResult) {
+      println('Failed to build fuzzers');
+      return false;
+    }
+
+    // We have a fresh build of the project, proceed to reproduce the testcase.
+    const crashInputTestCase =
+      extensionConfig.crashesDirectory +
+      '/' +
+      'clusterfuzz-testcase-minimized-' +
+      targetFuzzer +
+      '-' +
+      crashInfoFileInput;
+    // Run reproduce command against the target file
+    // Build the fuzzers using OSS-Fuzz infrastructure.
+    const cmdToExec = 'python3';
+    const args = [
+      extensionConfig.ossFuzzPepositoryWorkPath + '/infra/helper.py',
+      'reproduce',
+      targetProject,
+      targetFuzzer,
+      crashInputTestCase,
+    ];
+    if (!(await systemSyncLogIfFailure(cmdToExec, args))) {
+      println('Failed to reproduce testcase');
+    }
+
+    return true;
+  });
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdRunFI.ts

@@ -0,0 +1,24 @@
+// Copyright 2024 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import {runFuzzIntrospector} from '../fuzzIntrospectorHelper';
+
+/**
+ * Function for setting up Fuzz Introspector by way of a Python virtual env.
+ */
+export async function runFuzzIntrospectorHandler() {
+  runFuzzIntrospector();
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdSetOSSFuzzPath.ts

@@ -0,0 +1,59 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import * as vscode from 'vscode';
+
+import {println} from '../logger';
+import {extensionConfig} from '../config';
+
+// Set the oss-fuzz path.
+export async function setOssFuzzPath() {
+  println('Setting path');
+  const newOssFuzzPath = await vscode.window.showInputBox({
+    value: '',
+    placeHolder: 'Type path',
+  });
+  if (!newOssFuzzPath) {
+    println('Failed getting path');
+    return;
+  }
+
+  const fpathh = vscode.Uri.file(newOssFuzzPath);
+  let isValid = false;
+  try {
+    if (await vscode.workspace.fs.readDirectory(fpathh)) {
+      println('Is a directory');
+      const helperPathURI = vscode.Uri.file(
+        newOssFuzzPath + '/infra/helper.py'
+      );
+      if (await vscode.workspace.fs.readFile(helperPathURI)) {
+        println('Found helper file');
+        isValid = true;
+      }
+      isValid = true;
+    } else {
+      isValid = false;
+    }
+  } catch {
+    isValid = false;
+  }
+
+  if (isValid) {
+    extensionConfig.ossFuzzPepositoryWorkPath = newOssFuzzPath;
+  } else {
+    println('Not setting OSS-Fuzz path');
+  }
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdSetupCIFuzz.ts

@@ -0,0 +1,87 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import * as vscode from 'vscode';
+import {println} from '../logger';
+import {determineWorkspaceLanguage} from '../utils';
+import {cifuzzGenerator} from '../cifuzz';
+
+export async function setupCIFuzzHandler() {
+  const workspaceFolder = vscode.workspace.workspaceFolders;
+  if (!workspaceFolder) {
+    return false;
+  }
+
+  const wsPath = workspaceFolder[0].uri.fsPath; // gets the path of the first workspace folder
+
+  /**
+   * Go through GitHub workflows to find potential traces of CIFuzz
+   */
+  const githubWorkflowsPath = vscode.Uri.file(wsPath + '/.github/workflows');
+  try {
+    await vscode.workspace.fs.readDirectory(githubWorkflowsPath);
+  } catch {
+    println('Did not find a workflows path.');
+    return false;
+  }
+
+  for (const [name, type] of await vscode.workspace.fs.readDirectory(
+    githubWorkflowsPath
+  )) {
+    // Skip directories.
+    if (type === 2) {
+      continue;
+    }
+
+    // Read the files.
+    println('Is a file');
+    const workflowFile = vscode.Uri.file(wsPath + '/.github/workflows/' + name);
+    const doc = await vscode.workspace.openTextDocument(workflowFile);
+    if (doc.getText().includes('cifuzz')) {
+      println('Found existing CIFuzz, will not continue.');
+      return false;
+    }
+  }
+
+  println('Did not find CIFuzz, creating one.');
+  const projectName = await vscode.window.showInputBox({
+    value: '',
+    placeHolder: 'OSS-Fuzz project name',
+  });
+  if (!projectName) {
+    println('Failed to get project name');
+    return false;
+  }
+
+  /*
+   * There is no CIFuzz found, so we create one.
+   */
+  // Determine the language of the workspace.
+  const targetLanguage = await determineWorkspaceLanguage();
+  println('Target language: ' + targetLanguage);
+
+  // Generate a CIFuzz workflow text.
+  const cifuzzWorkflowText = cifuzzGenerator(targetLanguage, projectName, 30);
+
+  // Create the CIFuzz .yml file and write the contents to it to path
+  // .github/workflows/cifuzz.yml
+  const cifuzzYml = vscode.Uri.file(wsPath + '/.github/workflows/cifuzz.yml');
+  const wsedit = new vscode.WorkspaceEdit();
+  wsedit.createFile(cifuzzYml, {ignoreIfExists: true});
+  wsedit.insert(cifuzzYml, new vscode.Position(0, 0), cifuzzWorkflowText);
+  vscode.workspace.applyEdit(wsedit);
+  return true;
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdSetupFI.ts

@@ -0,0 +1,24 @@
+// Copyright 2024 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import {setUpFuzzIntrospector} from '../fuzzIntrospectorHelper';
+
+/**
+ * Function for setting up Fuzz Introspector by way of a Python virtual env.
+ */
+export async function setUpFuzzIntrospectorHandler() {
+  setUpFuzzIntrospector();
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdSetupOSSFuzz.ts

@@ -0,0 +1,53 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import {println} from '../logger';
+import {extensionConfig} from '../config';
+import {isPathValidOssFuzzPath} from '../ossfuzzWrappers';
+import {systemSync} from '../utils';
+
+/**
+ * Function for setting up oss-fuzz. This clones the relevant directory
+ * and sets the oss-fuzz variable accordingly.
+ */
+export async function setUpOssFuzzHandler() {
+  println('Setting up oss-fuzz in /tmp/');
+
+  // First check if we already have an OSS-Fuzz path
+  const tmpOssFuzzRepositoryPath = '/tmp/oss-fuzz';
+
+  if ((await isPathValidOssFuzzPath(tmpOssFuzzRepositoryPath)) === true) {
+    println('OSS-Fuzz already exists in /tmp/oss-fuzz');
+    extensionConfig.ossFuzzPepositoryWorkPath = tmpOssFuzzRepositoryPath;
+    return;
+  }
+
+  const cmdToExec = 'git';
+  const args: Array<string> = [
+    'clone',
+    'https://github.com/google/oss-fuzz',
+    tmpOssFuzzRepositoryPath,
+  ];
+  const [res, output] = await systemSync(cmdToExec, args);
+  if (res === false) {
+    println('Failed to clone oss-fuzz');
+    println(output);
+    return;
+  }
+  println('Finished cloning oss-fuzz');
+
+  extensionConfig.ossFuzzPepositoryWorkPath = tmpOssFuzzRepositoryPath;
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdTemplate.ts

@@ -0,0 +1,357 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Command for generating template fuzzers. This is a short-cut for rapid
+ * prototyping as well as an archive for inspiration.
+ */
+import * as vscode from 'vscode';
+import {println} from '../logger';
+
+export const cLangSimpleStringFuzzer = `#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+
+int 
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+    char *new_str = (char *)malloc(size+1);
+    if (new_str == NULL){
+        return 0;
+    }
+    memcpy(new_str, data, size);
+    new_str[size] = '\\0';
+
+    // Insert fuzzer contents here 
+    // fuzz data in new_str
+
+    // end of fuzzer contents
+
+    free(new_str);
+    return 0;
+}`;
+
+const cLangFileInputFuzzer = `int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	char filename[256];
+	sprintf(filename, "/tmp/libfuzzer.%d", getpid());
+
+  // Create a file on the filesystem with fuzzer data in it
+	FILE *fp = fopen(filename, "wb");
+	if (!fp) {
+		return 0;
+  }
+	fwrite(data, size, 1, fp);
+	fclose(fp);
+
+	// Fuzzer logic here. Use the file as a source of data.
+
+	// Fuzzer logic end
+
+  // Clean up the file.
+	unlink(filename);
+
+	return 0;
+}`;
+
+const cLangBareTemplateFuzzer = `int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	return 0;
+}`;
+
+const cppLangBareTemplateFuzzer = `extern "C" int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	return 0;
+}`;
+
+const cppLangStdStringTemplateFuzzer = `extern "C" int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+  std::string input(reinterpret_cast<const char*>(data), size);
+
+  return 0;
+}`;
+
+export const cppLangFDPTemplateFuzzer = `#include <fuzzer/FuzzedDataProvider.h>
+
+#include <string>
+
+extern "C" int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+  FuzzedDataProvider fdp(data, size);
+
+  // Extract higher level data types used for fuzzing, e.g.
+  // int ran_int = fdp.ConsumeIntegralInRange<int>(1, 1024);
+  // std::string s = fdp.ConsumeRandomLengthString();
+
+  return 0;
+}`;
+
+const cppLangFileInputFuzzer = `extern "C" int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+	char filename[256];
+	sprintf(filename, "/tmp/libfuzzer.%d", getpid());
+
+	FILE *fp = fopen(filename, "wb");
+	if (!fp) {
+		return 0;
+  }
+	fwrite(data, size, 1, fp);
+	fclose(fp);
+
+	// Fuzzer logic here
+
+	// Fuzzer logic end
+
+	unlink(filename);
+}`;
+
+const pythonLangBareTemplate = `import sys
+import atheris
+
+
+def TestOneInput(fuzz_bytes):
+    return
+
+
+def main():
+    atheris.Setup(sys.argv, TestOneInput)
+    atheris.Fuzz()
+
+
+if __name__ == "__main__":
+    main()`;
+
+export const pythonLangFileInputFuzzer = `import sys
+import atheris
+
+@atheris.instrument_func
+def TestOneInput(data):
+  # Write fuzz data to a file
+  with open('/tmp/fuzz_input.b') as f:
+    f.write(data)
+  
+  # Use '/tmp/fuzz_input.b' as input to file handling logic.
+
+  
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()`;
+
+const pythonLongFdpTemplate = `import sys
+import atheris
+
+def TestOneInput(fuzz_bytes):
+    fdp = atheris.FuzzedDataProvider(fuzz_bytes)
+    return
+
+def main():
+    atheris.Setup(sys.argv, TestOneInput)
+    atheris.Fuzz()
+
+if __name__ == "__main__":
+    main()`;
+
+export const javaLangBareTemplate = `import com.code_intelligence.jazzer.api.FuzzedDataProvider;
+public class SampleFuzzer {
+  public static void fuzzerTestOneInput(FuzzedDataProvider fdp) {
+    // Use fdp to create arbitrary types seeded with fuzz data
+  }
+}
+`;
+
+/**
+ * C templates
+ */
+async function cTemplates() {
+  let template = '';
+  const result = await vscode.window.showQuickPick(
+    ['Bare template', 'Null-terminated string input', 'File input'],
+    {
+      placeHolder: 'Pick which template',
+    }
+  );
+  vscode.window.showInformationMessage(`Got: ${result}`);
+
+  if (result === 'Null-terminated string input') {
+    template = cLangSimpleStringFuzzer;
+  } else if (result === 'File input') {
+    template = cLangFileInputFuzzer;
+  } else if (result === 'Bare template') {
+    template = cLangBareTemplateFuzzer;
+  } else {
+    template = 'empty';
+  }
+  const workspaceFolder = vscode.workspace.workspaceFolders;
+  if (!workspaceFolder) {
+    return;
+  }
+
+  const wsPath = workspaceFolder[0].uri.fsPath; // gets the path of the first workspace folder
+
+  const cifuzzYml = vscode.Uri.file(wsPath + '/oss-fuzz-template.c');
+  const wsedit = new vscode.WorkspaceEdit();
+  wsedit.createFile(cifuzzYml, {ignoreIfExists: true});
+  wsedit.insert(cifuzzYml, new vscode.Position(0, 0), template);
+  vscode.workspace.applyEdit(wsedit);
+  return;
+}
+
+/**
+ * CPP templates
+ */
+async function cppTemplates() {
+  let template = '';
+  const result = await vscode.window.showQuickPick(
+    [
+      'Bare template',
+      'Simple CPP string',
+      'File input fuzzer',
+      'Fuzzed data provider',
+    ],
+    {
+      placeHolder: 'Pick which template',
+    }
+  );
+  vscode.window.showInformationMessage(`Got: ${result}`);
+
+  if (result === 'Bare template') {
+    template = cppLangBareTemplateFuzzer;
+  } else if (result === 'Simple CPP string') {
+    template = cppLangStdStringTemplateFuzzer;
+  } else if (result === 'File input fuzzer') {
+    template = cppLangFileInputFuzzer;
+  } else if (result === 'Fuzzed data provider') {
+    template = cppLangFDPTemplateFuzzer;
+  } else {
+    template = 'empty';
+  }
+  const workspaceFolder = vscode.workspace.workspaceFolders;
+  if (!workspaceFolder) {
+    return;
+  }
+
+  const wsPath = workspaceFolder[0].uri.fsPath; // gets the path of the first workspace folder
+
+  const cifuzzYml = vscode.Uri.file(wsPath + '/oss-fuzz-template.cpp');
+  const wsedit = new vscode.WorkspaceEdit();
+  wsedit.createFile(cifuzzYml, {ignoreIfExists: true});
+  wsedit.insert(cifuzzYml, new vscode.Position(0, 0), template);
+  vscode.workspace.applyEdit(wsedit);
+  return;
+}
+
+/**
+ * Python templates
+ */
+async function pythonTepmlates() {
+  let template = '';
+  const result = await vscode.window.showQuickPick(
+    ['Bare template', 'Fuzzed Data Provider', 'File input fuzzer'],
+    {
+      placeHolder: 'Pick which template',
+    }
+  );
+  vscode.window.showInformationMessage(`Got: ${result}`);
+
+  if (result === 'Fuzzed Data Provider') {
+    template = pythonLongFdpTemplate;
+  } else if (result === 'Bare template') {
+    template = pythonLangBareTemplate;
+  } else if (result === 'File input fuzzer') {
+    template = pythonLangFileInputFuzzer;
+  } else {
+    template = 'empty';
+  }
+  const workspaceFolder = vscode.workspace.workspaceFolders;
+  if (!workspaceFolder) {
+    return;
+  }
+
+  const wsPath = workspaceFolder[0].uri.fsPath; // gets the path of the first workspace folder
+
+  const cifuzzYml = vscode.Uri.file(wsPath + '/oss-fuzz-template.py');
+  const wsedit = new vscode.WorkspaceEdit();
+  wsedit.createFile(cifuzzYml, {ignoreIfExists: true});
+  wsedit.insert(cifuzzYml, new vscode.Position(0, 0), template);
+  vscode.workspace.applyEdit(wsedit);
+  return;
+}
+
+/**
+ * Java templates
+ */
+async function javaTemplates() {
+  let template = '';
+  const result = await vscode.window.showQuickPick(['Bare template'], {
+    placeHolder: 'Pick which template',
+  });
+  vscode.window.showInformationMessage(`Got: ${result}`);
+
+  if (result === 'Bare template') {
+    template = javaLangBareTemplate;
+  } else {
+    template = 'empty';
+  }
+  const workspaceFolder = vscode.workspace.workspaceFolders;
+  if (!workspaceFolder) {
+    return;
+  }
+
+  const wsPath = workspaceFolder[0].uri.fsPath; // gets the path of the first workspace folder
+
+  const cifuzzYml = vscode.Uri.file(wsPath + '/oss-fuzz-template.java');
+  const wsedit = new vscode.WorkspaceEdit();
+  wsedit.createFile(cifuzzYml, {ignoreIfExists: true});
+  wsedit.insert(cifuzzYml, new vscode.Position(0, 0), template);
+  vscode.workspace.applyEdit(wsedit);
+  return;
+}
+
+export async function cmdDispatcherTemplate(context: vscode.ExtensionContext) {
+  println('Creating template');
+  const options: {
+    [key: string]: (context: vscode.ExtensionContext) => Promise<void>;
+  } = {
+    C: cTemplates,
+    CPP: cppTemplates,
+    Python: pythonTepmlates,
+    Java: javaTemplates,
+  };
+
+  const quickPick = vscode.window.createQuickPick();
+  quickPick.items = Object.keys(options).map(label => ({label}));
+  quickPick.onDidChangeSelection(selection => {
+    if (selection[0]) {
+      options[selection[0].label](context).catch(console.error);
+    }
+  });
+  quickPick.onDidHide(() => quickPick.dispose());
+  quickPick.placeholder = 'Pick language';
+  quickPick.show();
+
+  return;
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/commands/cmdTestFuzzer.ts

@@ -0,0 +1,90 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import * as vscode from 'vscode';
+import {println} from '../logger';
+import {runFuzzerHandler, buildFuzzersFromWorkspace} from '../ossfuzzWrappers';
+import {setStatusText} from '../utils';
+import {commandHistory} from '../commandUtils';
+import {extensionConfig} from '../config';
+
+/**
+ * Does an end-to-end test of a project/fuzzer. This is done by
+ * first building the project and then running the fuzzer.
+ * @param context
+ * @returns
+ */
+
+export async function cmdInputCollectorTestFuzzer() {
+  setStatusText('Testing specific fuzzer: getting input');
+  // Get the project name and fuzzer name to test.
+  const ossFuzzProjectNameInput = await vscode.window.showInputBox({
+    value: '',
+    placeHolder: 'The OSS-Fuzz project name',
+  });
+  if (!ossFuzzProjectNameInput) {
+    println('Did not get a ossFuzzTargetProject');
+    return;
+  }
+  println('Project name: ' + ossFuzzProjectNameInput);
+
+  // Get the fuzzer to run
+  const fuzzerNameInput = await vscode.window.showInputBox({
+    value: '',
+    placeHolder: 'Type a fuzzer name',
+  });
+  if (!fuzzerNameInput) {
+    println('Failed to get fuzzer name');
+    return;
+  }
+
+  // Create the args object for the dispatcher
+  const args = new Object({
+    projectName: ossFuzzProjectNameInput.toString(),
+    fuzzerName: fuzzerNameInput.toString(),
+  });
+
+  // Create a dispatcher object.
+  const commandObject = new Object({
+    commandType: 'oss-fuzz.TestFuzzer',
+    Arguments: args,
+    dispatcherFunc: cmdDispatchTestFuzzerHandler,
+  });
+  commandHistory.push(commandObject);
+
+  await cmdDispatchTestFuzzerHandler(args);
+}
+
+async function cmdDispatchTestFuzzerHandler(args: any) {
+  // Build the project
+  setStatusText('Test specific fuzzer: building fuzzers in workspace');
+  if (!(await buildFuzzersFromWorkspace(args.projectName, '', false))) {
+    println('Build projects');
+    return;
+  }
+
+  // Run the fuzzer for 10 seconds
+  println('Running fuzzer');
+  setStatusText('Test specific fuzzer: running fuzzer ' + args.fuzzerName);
+  await runFuzzerHandler(
+    args.projectName,
+    args.fuzzerName,
+    extensionConfig.numberOfSecondsForTestRuns.toString(),
+    ''
+  );
+  setStatusText('Test specific fuzzer: test completed of ' + args.fuzzerName);
+  return;
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/logger.ts

@@ -0,0 +1,31 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import * as vscode from 'vscode';
+export const vscodeOutputChannel =
+  vscode.window.createOutputChannel('oss-fuzz');
+
+export function println(line: string) {
+  vscodeOutputChannel.appendLine(line);
+}
+
+export function printRaw(line: string) {
+  vscodeOutputChannel.append(line);
+}
+
+export function debugPrintln(line: string) {
+  console.log(line);
+}

local-test-zookeeper-full-01/fuzz-tooling/tools/vscode-extension/src/utils.ts

@@ -0,0 +1,306 @@
+// 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import * as vscode from 'vscode';
+import {extensionConfig} from './config';
+import {getApi, FileDownloader} from '@microsoft/vscode-file-downloader-api';
+
+const fs = require('fs');
+const {spawn} = require('node:child_process');
+const statusBarComp = vscode.window.createStatusBarItem(
+  vscode.StatusBarAlignment.Right,
+  100
+);
+
+import {println, printRaw, debugPrintln} from './logger';
+
+export async function setStatusText(statusText: string) {
+  //let myStatusBarItem: vscode.StatusBarItem;
+  statusBarComp.text = '$(megaphone) OSS-Fuzz: ' + statusText;
+  statusBarComp.show();
+}
+
+export async function downloadRemoteURL(
+  urlString: string,
+  targetFile: string,
+  context: vscode.ExtensionContext
+) {
+  const fileDownloader: FileDownloader = await getApi();
+  println('URL: ' + urlString);
+  let codeCoverageFile: vscode.Uri;
+  try {
+    codeCoverageFile = await fileDownloader.downloadFile(
+      vscode.Uri.parse(urlString),
+      targetFile,
+      context
+    );
+  } catch (err) {
+    println('Could not get the coverage summary file');
+    return false;
+  }
+  return codeCoverageFile;
+}
+
+export async function getLocalOutBuildDir(projectName: string) {
+  const summaryCovPath =
+    extensionConfig.ossFuzzPepositoryWorkPath + '/build/out/' + projectName;
+  return summaryCovPath;
+}
+
+export async function getOSSFuzzCloudURL(projectName: string) {
+  const currentDate = new Date();
+  const yesterday = new Date(currentDate);
+  yesterday.setDate(yesterday.getDate() - 1);
+
+  const day = yesterday.getDate();
+  const month = yesterday.getMonth();
+  const year = yesterday.getFullYear();
+
+  let urlString =
+    'https://storage.googleapis.com/oss-fuzz-coverage/' +
+    projectName +
+    '/reports/' +
+    year.toString();
+
+  if (month < 10) {
+    urlString += '0';
+  }
+  urlString += month.toString();
+  if (day < 10) {
+    urlString += '0';
+  }
+  urlString += day.toString();
+
+  return urlString;
+}
+
+/**
+ * Checks if the current workspace has a generated OSS-Fuzz folder. This is the
+ * generated folder from our auto-generation capabilities.
+ *
+ * @returns boolean
+ */
+export async function hasOssFuzzInWorkspace() {
+  const workspaceFolder = vscode.workspace.workspaceFolders;
+
+  if (!workspaceFolder) {
+    return false;
+  }
+
+  // Identify if the workspace folder has a OSS-Fuzz set up.
+  const wsPath = workspaceFolder[0].uri.fsPath; // gets the path of the first workspace folder
+  const ossfuzzDockerFilepath = vscode.Uri.file(wsPath + '/OSS-Fuzz/');
+  try {
+    if (await vscode.workspace.fs.readDirectory(ossfuzzDockerFilepath)) {
+      for (const [name, type] of await vscode.workspace.fs.readDirectory(
+        ossfuzzDockerFilepath
+      )) {
+        // If it's a directory then we know we have the project set up in there.
+        if (type === 2) {
+          // We assume this is the project folder for now.
+          println('Found the relevant directory: ' + name);
+          return true;
+        }
+      }
+    }
+  } catch {
+    /* empty */
+  }
+  return false;
+}
+
+/**
+ * Gets the project name of the integrated OSS-Fuzz project.
+ * @returns string
+ */
+export async function getOssFuzzWorkspaceProjectName() {
+  const workspaceFolder = vscode.workspace.workspaceFolders;
+  if (!workspaceFolder) {
+    return 'N/A';
+  }
+
+  // Identify if the workspace folder has a OSS-Fuzz set up.
+  const wsPath = workspaceFolder[0].uri.fsPath; // gets the path of the first workspace folder
+  const ossfuzzDockerFilepath = vscode.Uri.file(wsPath + '/OSS-Fuzz/');
+  try {
+    if (await vscode.workspace.fs.readDirectory(ossfuzzDockerFilepath)) {
+      for (const [name, type] of await vscode.workspace.fs.readDirectory(
+        ossfuzzDockerFilepath
+      )) {
+        if (type === 2) {
+          // println('Is a directory');
+          // We assume this is the project folder for now.
+          return name;
+        }
+      }
+    }
+  } catch {
+    /* empty */
+  }
+
+  return 'N/A';
+}
+
+/**
+ * Lists the fuzzers available in the OSS-Fuzz build project.
+ *
+ * @param projectName
+ * @param ossFuzzRepositoryPath
+ * @returns
+ */
+export async function listFuzzersForProject(
+  projectName: string,
+  ossFuzzRepositoryPath: string
+) {
+  const projectOssFuzzBuildPath = vscode.Uri.file(
+    ossFuzzRepositoryPath + '/build/out/' + projectName
+  );
+  const fuzzersInProject: Array<string> = [];
+  for (const [name, type] of await vscode.workspace.fs.readDirectory(
+    projectOssFuzzBuildPath
+  )) {
+    // Is it a file?
+    if (type === 1) {
+      const filepath =
+        ossFuzzRepositoryPath + '/build/out/' + projectName + '/' + name;
+      const binary = fs.readFileSync(filepath);
+
+      // Check if fuzzer entrypoint exists in file. This is similar to how OSS-Fuzz
+      // checks whether a file is fuzzer or not.
+      if (binary.lastIndexOf('LLVMFuzzerTestOneInput') !== -1) {
+        fuzzersInProject.push(name);
+      }
+    }
+  }
+  println('Successfully build the project.');
+  println('The fuzzers in project');
+  for (const fuzzName of fuzzersInProject) {
+    println(fuzzName);
+  }
+  return fuzzersInProject;
+}
+
+/**
+ * Helper functions for identifying the primary programming language of the workspace.
+ *
+ * This is achieved by identifying the suffix of files and then sorting
+ * based on those with most of a given language supported by OSS-Fuzz.
+ *
+ * @returns
+ */
+export async function determineWorkspaceLanguage() {
+  const pythonFiles = await vscode.workspace.findFiles('**/*.py');
+  const cppFiles = await vscode.workspace.findFiles('**/*.c++');
+  const cfiles = await vscode.workspace.findFiles('**/*.c');
+  const rustFiles = await vscode.workspace.findFiles('**/*.rust');
+  const golangFiles = await vscode.workspace.findFiles('**/*.go');
+
+  println('Number of python files: ' + pythonFiles.length);
+  println('Number of C++ files: ' + cppFiles.length);
+  println('Number of C files: ' + cfiles.length);
+  println('Number of rustFiles files: ' + rustFiles.length);
+  println('Number of golangFiles files: ' + golangFiles.length);
+
+  const maxCount = Math.max(
+    pythonFiles.length,
+    cppFiles.length,
+    cfiles.length,
+    rustFiles.length,
+    golangFiles.length
+  );
+  let target = '';
+  if (maxCount === pythonFiles.length) {
+    target = 'python';
+  } else if (maxCount === cppFiles.length) {
+    target = 'c++';
+  } else if (maxCount === cfiles.length) {
+    target = 'c';
+  } else if (maxCount === rustFiles.length) {
+    target = 'rust';
+  } else if (maxCount === golangFiles.length) {
+    target = 'golang';
+  } else {
+    target = 'not implemented';
+  }
+
+  println('Target language: ' + target);
+  return target;
+}
+
+/**
+ * Helper method to execute commands on the system.
+ */
+export async function systemSync(cmd: string, args: Array<string | undefined>) {
+  debugPrintln('Running command');
+  debugPrintln(cmd);
+  debugPrintln(args.toString());
+  debugPrintln('<<<<<<<<<<<<');
+
+  // Launch the command
+  const command = spawn(cmd, args);
+
+  // Callbacks for output events, to capture stdout and stderr live.
+  command.stdout.on('data', (x: {toString: () => string}) => {
+    printRaw(x.toString());
+  });
+  command.stderr.on('data', (x: {toString: () => string}) => {
+    printRaw(x.toString());
+  });
+
+  // Monitor for child exit.
+  let hasChildExited = 0;
+  let childExitCode = 0;
+  command.on('exit', (code: any, signal: any) => {
+    // println('child process exited with ' + `code ${code} and signal ${signal}`);
+    childExitCode = code;
+    hasChildExited = 1;
+  });
+
+  // Block until the child process has exited.
+  const snooze = (ms: number) =>
+    new Promise(resolve => setTimeout(resolve, ms));
+
+  let idx = 0;
+  const maxSeconds = 1800;
+  debugPrintln('Child exited: ' + hasChildExited);
+
+  // I think we can convert the following loop to a Promise wrapping the command
+  // exeuction. TODO(David).
+  while (hasChildExited === 0 && idx < maxSeconds) {
+    idx += 1;
+    await snooze(1000);
+  }
+
+  // Command execution is done, return appropriately if success/error.
+  if (childExitCode !== 0) {
+    println('Command execution errored');
+    return [false, command.toString()];
+  }
+  // println('Succes');
+  return [true, command.toString()];
+}
+
+export async function systemSyncLogIfFailure(
+  cmd: string,
+  args: Array<string | undefined>
+): Promise<boolean> {
+  const [res, cmdMsg] = await systemSync(cmd, args);
+  if (res === false) {
+    println(cmdMsg);
+    return false;
+  }
+  return true;
+}