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#!/usr/bin/python3
# Validate digital-signature fixtures used by Atril tests.
import os
import subprocess
import sys
def run_pdfsig(pdf_path):
cmd = ["pdfsig", "-nocert", pdf_path]
result = subprocess.run(cmd, capture_output=True, text=True, check=False)
return result.returncode, (result.stdout + result.stderr)
def assert_contains(output, expected):
if expected not in output:
raise AssertionError(f"Expected '{expected}' in output:\n{output}")
def main():
test_dir = os.path.dirname(os.path.abspath(__file__))
unsigned_pdf = os.path.join(test_dir, "test-signature-unsigned.pdf")
valid_pdf = os.path.join(test_dir, "test-signature-valid.pdf")
invalid_pdf = os.path.join(test_dir, "test-signature-invalid.pdf")
for fixture in (unsigned_pdf, valid_pdf, invalid_pdf):
if not os.path.exists(fixture):
raise FileNotFoundError(f"Missing fixture: {fixture}")
unsigned_rc, unsigned_out = run_pdfsig(unsigned_pdf)
valid_rc, valid_out = run_pdfsig(valid_pdf)
invalid_rc, invalid_out = run_pdfsig(invalid_pdf)
if unsigned_rc not in (0, 2):
raise RuntimeError(f"pdfsig failed for unsigned fixture (rc={unsigned_rc}):\n{unsigned_out}")
if valid_rc != 0:
raise RuntimeError(f"pdfsig failed for valid fixture (rc={valid_rc}):\n{valid_out}")
if invalid_rc != 0:
raise RuntimeError(f"pdfsig failed for invalid fixture (rc={invalid_rc}):\n{invalid_out}")
assert_contains(unsigned_out, "does not contain any signatures")
assert_contains(valid_out, "Signature Validation: Signature is Valid.")
assert_contains(invalid_out, "Signature Validation: Digest Mismatch.")
if __name__ == "__main__":
try:
main()
except Exception as exc:
print(exc)
sys.exit(1)
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