56 lines
1.9 KiB
Python
Executable File
56 lines
1.9 KiB
Python
Executable File
# -*-mode: python; py-indent-offset: 2; indent-tabs-mode: nil; coding: utf-8-unix -*-
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# http://vt5hknv6sblkgf22.onion/tutorials/examples/check_digests.html
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import sys
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import stem.descriptor.remote
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import stem.util.tor_tools
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def download_descriptors(fingerprint):
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"""
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Downloads the descriptors we need to validate this relay. Downloads are
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parallelized, providing the caller with a tuple of the form...
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(router_status_entry, server_descriptor, extrainfo_descriptor)
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"""
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conensus_query = stem.descriptor.remote.get_consensus()
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server_desc_query = stem.descriptor.remote.get_server_descriptors(fingerprint)
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extrainfo_query = stem.descriptor.remote.get_extrainfo_descriptors(fingerprint)
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router_status_entries = filter(lambda desc: desc.fingerprint == fingerprint, conensus_query.run())
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if len(router_status_entries) != 1:
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raise IOError("Unable to find relay '%s' in the consensus" % fingerprint)
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return (
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router_status_entries[0],
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server_desc_query.run()[0],
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extrainfo_query.run()[0],
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)
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if __name__ == '__main__':
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fingerprint = input("What relay fingerprint would you like to validate?\n")
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print('') # blank line
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if not stem.util.tor_tools.is_valid_fingerprint(fingerprint):
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print("'%s' is not a valid relay fingerprint" % fingerprint)
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sys.exit(1)
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try:
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router_status_entry, server_desc, extrainfo_desc = download_descriptors(fingerprint)
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except Exception as exc:
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print(exc)
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sys.exit(1)
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if router_status_entry.digest == server_desc.digest():
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print("Server descriptor digest is correct")
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else:
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print("Server descriptor digest invalid, expected %s but is %s" % (router_status_entry.digest, server_desc.digest()))
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if server_desc.extra_info_digest == extrainfo_desc.digest():
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print("Extrainfo descriptor digest is correct")
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else:
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print("Extrainfo descriptor digest invalid, expected %s but is %s" % (server_desc.extra_info_digest, extrainfo_desc.digest()))
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