mirror of
https://github.com/vee1e/flare-floss.git
synced 2026-09-01 17:57:06 +00:00
ab07022ff3
Replace the header from source code files using the following script:
```Python
for dir_path, dir_names, file_names in os.walk("flare-floss"):
for file_name in file_names:
try:
file_path = f"{dir_path}/{file_name}"
f = open(file_path, "rb+")
content = f.read()
m = re.search(OLD_HEADER, content)
if not m:
continue
print(f"{file_path}: {m.group('year')}")
content = content.replace(m.group(0), NEW_HEADER % m.group("year"))
f.seek(0)
f.write(content)
except:
continue
```
Some files had the copyright headers inside a `"""` comment and needed
manual changes before applying the script.
The old header had the confusing sentence `All rights reserved`, which
does not make sense for an open source license. Replace the header by
the default Google header that corrects this issue and keep floss
consistent with other Google projects.
106 lines
4.1 KiB
Python
106 lines
4.1 KiB
Python
#!/usr/bin/env python3
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# Copyright 2021 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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render-r2-import-script.py
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Translate a floss result document into an radare2 script
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that marks up the current workspace.
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Usage:
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$ floss suspicious.exe -j > floss-results.json
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$ python render-r2-import-script.py floss-results.json > apply_floss.py
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# now run `apply_floss.py` in radare2
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"""
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import sys
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import base64
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import logging
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import argparse
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from pathlib import Path
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from floss.results import AddressType, ResultDocument
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logger = logging.getLogger("floss.render-r2-import-script")
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def render_r2_script(result_document: ResultDocument) -> str:
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"""
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Create r2script contents for r2 session annotations.
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"""
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main_commands = []
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fvas = []
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for ds in result_document.strings.decoded_strings:
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if ds.string != "":
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sanitized_string = base64.b64encode(
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b'"FLOSS: %s (floss_%x)"' % (ds.string.encode("utf-8"), ds.address)
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).decode("ascii")
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if ds.address_type == AddressType.GLOBAL:
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main_commands.append("CCu base64:%s @ %d" % (sanitized_string, ds.address))
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if ds.decoding_routine not in fvas:
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main_commands.append("af @ %d" % (ds.decoding_routine))
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main_commands.append("afn floss_%x @ %d" % (ds.decoding_routine, ds.decoding_routine))
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fvas.append(ds.decoding_routine)
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else:
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main_commands.append("CCu base64:%s @ %d" % (sanitized_string, ds.decoded_at))
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if ds.decoding_routine not in fvas:
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main_commands.append("af @ %d" % (ds.decoding_routine))
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main_commands.append("afn floss_%x @ %d" % (ds.decoding_routine, ds.decoding_routine))
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fvas.append(ds.decoding_routine)
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for ss in result_document.strings.stack_strings:
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if ss.string != "":
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sanitized_string = base64.b64encode(b'"FLOSS: %s"' % ss.string.encode("utf-8")).decode("ascii")
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main_commands.append("Ca -0x%x base64:%s @ %d" % (ss.frame_offset, sanitized_string, ss.function))
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for ts in result_document.strings.tight_strings:
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if ts.string != "":
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sanitized_string = base64.b64encode(b'"FLOSS: %s"' % ts.string.encode("utf-8")).decode("ascii")
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main_commands.append("Ca -0x%x base64:%s @ %d" % (ts.frame_offset, sanitized_string, ts.function))
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return "\n".join(main_commands)
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def main():
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parser = argparse.ArgumentParser(description="Generate an radare2 script to apply FLOSS results.")
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parser.add_argument("/path/to/report.json", help="path to JSON document from `floss --json`")
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logging_group = parser.add_argument_group("logging arguments")
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logging_group.add_argument("-d", "--debug", action="store_true", help="enable debugging output on STDERR")
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logging_group.add_argument(
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"-q", "--quiet", action="store_true", help="disable all status output except fatal errors"
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)
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args = parser.parse_args()
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args.report_path = getattr(args, "/path/to/report.json")
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if args.quiet:
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logging.basicConfig(level=logging.WARNING)
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logging.getLogger().setLevel(logging.WARNING)
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elif args.debug:
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logging.basicConfig(level=logging.DEBUG)
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logging.getLogger().setLevel(logging.DEBUG)
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else:
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logging.basicConfig(level=logging.INFO)
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logging.getLogger().setLevel(logging.INFO)
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result_document = ResultDocument.parse_file(Path(args.report_path))
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print(render_r2_script(result_document))
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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