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Implemented logic for preventing self-extracting payloads #164

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Implemented logic for preventing self-extracting payloads #164

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6 changes: 6 additions & 0 deletions stoq/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -632,6 +632,12 @@ async def scan_request(
else:
payload_idx = hashes_seen[payload_hash]
for idx in payload_idx:
if request.payloads[idx].results.payload_id in extracted_payload.results.extracted_from:
# Handle self extracting payload
dup_idx = extracted_payload.results.extracted_from.index(request.payloads[idx].results.payload_id)
del extracted_payload.results.extracted_by[dup_idx]
del extracted_payload.results.extracted_from[dup_idx]
self.log.debug(f'Self extracting payload detected for {request.payloads[idx].results.payload_id}')
request.payloads[idx].results.extracted_by.extend(
extracted_payload.results.extracted_by
)
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6 changes: 5 additions & 1 deletion stoq/tests/test_core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -298,7 +298,7 @@ async def test_scan_with_duplicate_extracted_payloads(self):
'extract_payload', response.results[1].plugins_run['workers'][0]
)
self.assertEqual('simple_worker', response.results[1].extracted_by[0])
self.assertEqual('extract_payload', response.results[1].extracted_by[1])
self.assertEqual(1, len(response.results[1].extracted_by))

async def test_scan_with_nested_required_plugin(self):
s = Stoq(base_dir=utils.get_data_dir())
Expand Down Expand Up @@ -507,6 +507,10 @@ async def test_dedup(self):
response = await s.scan(self.generic_content)
self.assertEqual(len(response.results), 2)

# Make sure extracted_from does not include the result payload_id
for result in response.results:
self.assertNotIn(result.payload_id, result.extracted_from)

@asynctest.skipIf(
sys.version_info >= (3, 8), 'skipping because python >= 3.8 breaks test'
)
Expand Down