How to use certificate-transparency library?

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The Python library for searching certificate logs has very little documentation. How is it possible to use it to search the logs and retrieve something intelligible?

The closest I can find is just to run dashboard.py or simple_scan.py, but simple_scan.py throws this error:

  File "/certificate-transparency/python/ct/client/tools/simple_scan.py", line 35, in run
    if not FLAGS.output:
NameError: global name 'FLAGS' is not defined

This makes no sense since FLAGS is part of gflags and gflags is imported in the script.

dashboard.py throws this error:

  File "/certificate-transparency/python/ct/dashboard/dashboard.py", line 141, in <module>
    with open(FLAGS.ctlog_config, "r") as config:
IOError: [Errno 2] No such file or directory: 'ct/config/logs.config'

ct/config/logs.config definitely exists. I assume it's a PYTHONPATH issue, but ct's parent directory, python, is in the PYTHONPATH.

Ideally I wouldn't use this library as scripts anyway but as a library. I suppose I could just basically cut and paste what I need from the scripts, but it's not clear what I need for the scripts to function since the scripts don't function at all!

I see absolutely no guidance as to how to handle this thing. As another example, I sense that I could use something like this async_client, but it's not at all clear what exactly it's doing beyond fetching an sth and running as a server in some way.

Any ideas? How am I supposed to figure this out?

certificate-transparency certificate python
2 Answers

If you set the variable PYTHONPATH to the python folder you could start using it.

export PYTHONPATH=/path-to-repo/certificate-transparency/python

The output flag can be set by starting the command in this way:

./ct/client/tools/simple_scan.py --output /tmp/pct
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