crx3 is a python library for packaging and parsing crx files.
crx3 is available on PyPI:
$ python -m pip install crx3crx3 officially supports Python 3.7+.
- Create a private key for signing the crx file.
from crx3 import creator creator.create_private_key_file('output/example-extension.pem')- Packaging a zip file or extension code directory to a crx file.
from crx3 import creator creator.create_crx_file('example/example-extension', 'example/example-extension.pem', 'output/example-extension.crx')- Verify if a file is a valid crx version 3 file.
from crx3 import verifier verifier_result, header_info = verifier.verify('example/example-extension.crx') assert verifier_result == verifier.VerifierResult.OK_FULL assert header_info.crx_id == 'jjomgndeajdmncfenopimafofpnflcfo' assert header_info.public_key == 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMI...FkbU7H8sDQIDAQAB'- Create a crx file.
crx3 create [-pk PRIVATE_KEY_FILE] [-o OUTPUT_FILE] [-v] source
usage: crx3 create [-h] [-pk PRIVATE_KEY_FILE] [-o OUTPUT_FILE] [-v] source positional arguments: source zip file or directory to be packed options: -h, --help show this help message and exit -pk PRIVATE_KEY_FILE, --private-key PRIVATE_KEY_FILE private key file to be used for signing. If not specified, the program automatically creates a new one and saves it to the same directory as the crx file -o OUTPUT_FILE, --output OUTPUT_FILE path to the output crx file -v, --verbose print more information - Verify that a crx file is valid.
crx3 verify [-v] crx_file
usage: crx3 verify [-h] [-v] crx_file positional arguments: crx_file crx file options: -h, --help show this help message and exit -v, --verbose print more information