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Tests unusual/boundary specs: no flags, no users, no firewall rules,
db-only flags, file-only flags, multiple vulns, empty golden path.
"""
from __future__ import annotations
import tempfile
from pathlib import Path
import pytest
from open_range.builder.renderer import SnapshotRenderer, _build_context
from open_range.protocols import (
FlagSpec,
GoldenPathStep,
NPCTrafficSpec,
SnapshotSpec,
TaskSpec,
TruthGraph,
Vulnerability,
)
@pytest.fixture
def renderer():
return SnapshotRenderer()
def _minimal_topology(**overrides):
"""Build a minimal topology dict, with optional overrides."""
topo = {
"hosts": ["web", "db"],
"zones": {"dmz": ["web"], "internal": ["db"]},
"users": [],
"firewall_rules": [],
}
topo.update(overrides)
return topo
# ---------------------------------------------------------------------------
# Spec with no flags
# ---------------------------------------------------------------------------
class TestNoFlags:
"""Spec with zero flags should render without errors."""
def test_renders_without_error(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(
vulns=[Vulnerability(id="v1", type="sqli", host="web")]
),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "no_flags"
renderer.render(spec, out)
for fname in ["docker-compose.yml", "Dockerfile.web", "init.sql"]:
assert (out / fname).exists()
def test_dockerfile_has_no_flag_lines(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "no_flags"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
assert "FLAG{" not in dockerfile
def test_context_has_empty_flags(self):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["flags"] == []
# ---------------------------------------------------------------------------
# Spec with no users
# ---------------------------------------------------------------------------
class TestNoUsers:
"""Spec with zero topology users should render cleanly."""
def test_renders_without_error(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(users=[]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "no_users"
renderer.render(spec, out)
assert (out / "Dockerfile.web").exists()
def test_dockerfile_has_no_useradd(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(users=[]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "no_users"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
assert "useradd" not in dockerfile
def test_context_defaults_db_user(self):
"""With no users, context should synthesize a service DB account."""
spec = SnapshotSpec(
topology=_minimal_topology(users=[]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["db_user"] == "svc_db"
assert ctx["db_pass"]
assert ctx["db_pass"] != "AppUs3r!2024"
# ---------------------------------------------------------------------------
# Spec with no firewall rules
# ---------------------------------------------------------------------------
class TestNoFirewallRules:
"""Spec with no firewall rules should render iptables with defaults."""
def test_renders_iptables_without_error(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(firewall_rules=[]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "no_fw"
renderer.render(spec, out)
rules = (out / "iptables.rules").read_text()
assert "*filter" in rules
assert "COMMIT" in rules
def test_context_has_empty_firewall_rules(self):
spec = SnapshotSpec(
topology=_minimal_topology(firewall_rules=[]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["firewall_rules"] == []
# ---------------------------------------------------------------------------
# Spec with db-only flags
# ---------------------------------------------------------------------------
class TestDBOnlyFlags:
"""Flags on the db host with db: paths should appear in SQL, not Dockerfile."""
def test_flag_not_in_dockerfile(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(
vulns=[Vulnerability(id="v1", type="idor", host="web")]
),
flags=[
FlagSpec(
id="flag1",
value="FLAG{db_only_flag}",
path="db:flags.secrets.flag",
host="db",
),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "db_only"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
assert "FLAG{db_only_flag}" not in dockerfile
def test_flag_path_with_mysql_prefix_not_in_dockerfile(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[
FlagSpec(
id="flag1",
value="FLAG{mysql_flag}",
path="mysql:flags.secrets.flag",
host="db",
),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "mysql_flag"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
assert "FLAG{mysql_flag}" not in dockerfile
def test_db_flag_host_not_web(self, renderer):
"""Flag with host='db' should never appear in Dockerfile.web regardless of path."""
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[
FlagSpec(
id="flag1",
value="FLAG{host_db}",
path="/some/path/flag.txt",
host="db",
),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "db_host"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
# Template checks flag.host == 'web', so db-hosted flag shouldn't be there
assert "FLAG{host_db}" not in dockerfile
# ---------------------------------------------------------------------------
# Spec with file-only flags
# ---------------------------------------------------------------------------
class TestFileOnlyFlags:
"""Flags stored as files on web should appear in Dockerfile, not SQL."""
def test_flag_in_dockerfile(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[
FlagSpec(
id="flag1",
value="FLAG{file_only}",
path="/var/flags/flag1.txt",
host="web",
),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "file_only"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
assert "FLAG{file_only}" in dockerfile
assert "/var/flags/flag1.txt" in dockerfile
def test_flag_not_in_sql(self, renderer):
"""File-based flag should NOT appear in init.sql (it's template-generated, static)."""
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[
FlagSpec(
id="flag1",
value="FLAG{file_only_check}",
path="/var/flags/flag1.txt",
host="web",
),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "file_only_sql"
renderer.render(spec, out)
sql = (out / "init.sql").read_text()
assert "FLAG{file_only_check}" not in sql
def test_multiple_file_flags(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[
FlagSpec(
id="flag1",
value="FLAG{first}",
path="/var/flags/flag1.txt",
host="web",
),
FlagSpec(
id="flag2",
value="FLAG{second}",
path="/var/flags/flag2.txt",
host="web",
),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "multi_flags"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
assert "FLAG{first}" in dockerfile
assert "FLAG{second}" in dockerfile
assert "/var/flags/flag1.txt" in dockerfile
assert "/var/flags/flag2.txt" in dockerfile
# ---------------------------------------------------------------------------
# Spec with multiple vulnerability types
# ---------------------------------------------------------------------------
class TestMultipleVulnTypes:
"""Multiple vuln types should enable correct nginx endpoint blocks."""
def test_sqli_and_path_traversal_both_enabled(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(
vulns=[
Vulnerability(
id="v1", type="sqli", host="web",
injection_point="/search?q=",
),
Vulnerability(
id="v2", type="path_traversal", host="web",
injection_point="/download?file=",
),
]
),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "multi_vuln"
renderer.render(spec, out)
nginx = (out / "nginx.conf").read_text()
assert "/search" in nginx
assert "/download" in nginx
def test_context_enables_both_endpoints(self):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(
vulns=[
Vulnerability(id="v1", type="sqli", host="web",
injection_point="/search?q="),
Vulnerability(id="v2", type="path_traversal", host="web",
injection_point="/download?file="),
]
),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx.get("search_endpoint") is True
assert ctx.get("download_endpoint") is True
def test_idor_does_not_enable_search_or_download(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(
vulns=[
Vulnerability(
id="v1", type="idor", host="web",
injection_point="/api/users/{id}",
),
]
),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert "search_endpoint" not in ctx
assert "download_endpoint" not in ctx
def test_three_vulns_render_without_error(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(
vulns=[
Vulnerability(id="v1", type="sqli", host="web",
injection_point="/search?q="),
Vulnerability(id="v2", type="path_traversal", host="web",
injection_point="/download?file="),
Vulnerability(id="v3", type="xss", host="web",
injection_point="/comment"),
]
),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "three_vulns"
renderer.render(spec, out)
for fname in ["docker-compose.yml", "Dockerfile.web", "nginx.conf",
"init.sql", "iptables.rules"]:
assert (out / fname).exists()
# ---------------------------------------------------------------------------
# Spec with empty golden path
# ---------------------------------------------------------------------------
class TestEmptyGoldenPath:
"""Spec with no golden path steps should render normally."""
def test_renders_without_error(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(
vulns=[Vulnerability(id="v1", type="sqli", host="web")]
),
flags=[
FlagSpec(id="f1", value="FLAG{x}", path="/var/flags/f.txt", host="web"),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "no_gp"
renderer.render(spec, out)
assert (out / "docker-compose.yml").exists()
def test_compose_still_valid(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "no_gp_compose"
renderer.render(spec, out)
compose = (out / "docker-compose.yml").read_text()
assert "services:" in compose
assert "web:" in compose
# ---------------------------------------------------------------------------
# Spec with only one host
# ---------------------------------------------------------------------------
class TestSingleHost:
"""Spec with only one host in topology."""
def test_renders_without_error(self, renderer):
spec = SnapshotSpec(
topology={
"hosts": ["web"],
"zones": {"dmz": ["web"]},
"users": [],
"firewall_rules": [],
},
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "single_host"
renderer.render(spec, out)
assert (out / "docker-compose.yml").exists()
def test_context_has_one_host(self):
spec = SnapshotSpec(
topology={
"hosts": ["web"],
"zones": {"dmz": ["web"]},
"users": [],
"firewall_rules": [],
},
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["host_names"] == ["web"]
assert len(ctx["hosts"]) == 1
# ---------------------------------------------------------------------------
# Spec with dict-format hosts
# ---------------------------------------------------------------------------
class TestDictFormatHosts:
"""Topology with hosts as list of dicts rather than strings."""
def test_renders_with_dict_hosts(self, renderer):
spec = SnapshotSpec(
topology={
"hosts": [
{"name": "web", "zone": "dmz", "networks": ["dmz", "internal"]},
{"name": "db", "zone": "internal", "depends_on": ["ldap"]},
],
"zones": {"dmz": ["web"], "internal": ["db"]},
"users": [],
"firewall_rules": [],
},
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "dict_hosts"
renderer.render(spec, out)
assert (out / "docker-compose.yml").exists()
def test_context_preserves_dict_host_info(self):
spec = SnapshotSpec(
topology={
"hosts": [
{"name": "web", "zone": "dmz", "networks": ["dmz", "internal"]},
{"name": "db", "zone": "internal", "depends_on": ["ldap"]},
],
"zones": {"dmz": ["web"], "internal": ["db"]},
"users": [],
"firewall_rules": [],
},
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
web_host = next(h for h in ctx["hosts"] if h["name"] == "web")
assert "dmz" in web_host["networks"]
assert "internal" in web_host["networks"]
db_host = next(h for h in ctx["hosts"] if h["name"] == "db")
assert db_host["depends_on"] == ["ldap"]
# ---------------------------------------------------------------------------
# Zone CIDR mapping edge cases
# ---------------------------------------------------------------------------
class TestZoneCIDRMapping:
"""Verify zone-to-CIDR mapping for known and unknown zones."""
def test_known_zones(self):
spec = SnapshotSpec(
topology={
"hosts": ["web", "db"],
"zones": {"external": ["web"], "dmz": ["web"], "internal": ["db"],
"management": ["db"]},
"users": [],
"firewall_rules": [],
},
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["zone_cidrs"]["external"] == "0.0.0.0/0"
assert ctx["zone_cidrs"]["dmz"] == "10.0.1.0/24"
assert ctx["zone_cidrs"]["internal"] == "10.0.2.0/24"
assert ctx["zone_cidrs"]["management"] == "10.0.3.0/24"
def test_unknown_zone_gets_default(self):
spec = SnapshotSpec(
topology={
"hosts": ["web"],
"zones": {"custom_zone": ["web"]},
"users": [],
"firewall_rules": [],
},
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["zone_cidrs"]["custom_zone"] == "0.0.0.0/0"
# ---------------------------------------------------------------------------
# DB user/password resolution edge cases
# ---------------------------------------------------------------------------
class TestDBUserResolution:
"""Verify _find_db_user and _find_db_pass edge cases."""
def test_admin_user_not_picked_as_db_user(self):
"""Users in 'admins' group should not be picked as db_user."""
spec = SnapshotSpec(
topology=_minimal_topology(users=[
{
"username": "root_admin",
"password": "AdminPass!",
"groups": ["admins"],
"hosts": ["db"],
},
]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
# Should use synthesized service account since only admin has db access.
assert ctx["db_user"] == "svc_db"
def test_non_admin_db_user_picked(self):
"""Non-admin user with db access should be picked."""
spec = SnapshotSpec(
topology=_minimal_topology(users=[
{
"username": "dbworker",
"password": "Work3r!Pass",
"groups": ["users"],
"hosts": ["db", "web"],
},
]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["db_user"] == "dbworker"
assert ctx["db_pass"] == "Work3r!Pass"
def test_mysql_root_pass_from_admin_user(self):
"""Admin user with db access provides mysql root password."""
spec = SnapshotSpec(
topology=_minimal_topology(users=[
{
"username": "admin",
"password": "CustomR00t!",
"groups": ["admins"],
"hosts": ["db"],
},
]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["mysql_root_password"] == "CustomR00t!"
def test_mysql_root_pass_default(self):
"""No admin user should fall back to default root password."""
spec = SnapshotSpec(
topology=_minimal_topology(users=[]),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["mysql_root_password"] == "r00tP@ss!"
# ---------------------------------------------------------------------------
# Context: app_files from spec.files
# ---------------------------------------------------------------------------
class TestAppFiles:
"""Verify app_files context variable from spec.files."""
def test_app_files_populated_when_spec_has_files(self):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
files={"web:/var/www/portal/test.php": "<?php echo 1; ?>"},
)
ctx = _build_context(spec)
assert "web:/var/www/portal/test.php" in ctx["app_files"]
def test_app_files_empty_when_no_files(self):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[],
golden_path=[],
)
ctx = _build_context(spec)
assert ctx["app_files"] == {}
# ---------------------------------------------------------------------------
# Mixed flag types: some db, some file
# ---------------------------------------------------------------------------
class TestMixedFlagTypes:
"""Spec with both db-hosted and file-hosted flags."""
def test_only_file_flags_in_dockerfile(self, renderer):
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[
FlagSpec(
id="flag_file",
value="FLAG{in_file}",
path="/var/flags/flag1.txt",
host="web",
),
FlagSpec(
id="flag_db",
value="FLAG{in_db}",
path="db:flags.secrets.flag",
host="db",
),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "mixed"
renderer.render(spec, out)
dockerfile = (out / "Dockerfile.web").read_text()
assert "FLAG{in_file}" in dockerfile
assert "FLAG{in_db}" not in dockerfile
def test_sql_template_does_not_contain_any_flags(self, renderer):
"""init.sql is static template, flags go in via db:sql at runtime."""
spec = SnapshotSpec(
topology=_minimal_topology(),
truth_graph=TruthGraph(vulns=[]),
flags=[
FlagSpec(id="f1", value="FLAG{a}", path="/var/flags/f.txt", host="web"),
FlagSpec(id="f2", value="FLAG{b}", path="db:flags.secrets.flag", host="db"),
],
golden_path=[],
)
with tempfile.TemporaryDirectory() as tmpdir:
out = Path(tmpdir) / "mixed_sql"
renderer.render(spec, out)
sql = (out / "init.sql").read_text()
# Static template shouldn't have dynamic flag values
assert "FLAG{a}" not in sql
assert "FLAG{b}" not in sql
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