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#!/usr/bin/env python3
# Copyright 2017 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Updates NetTrustAnchors enum in histograms.xml file with values read
from net/data/ssl/root_stores/root_stores.json.
If the file was pretty-printed, the updated version is pretty-printed too.
"""
from __future__ import print_function
import json
import os.path
import sys
sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'common'))
import path_util
import update_histogram_enum
NET_ROOT_CERTS_PATH = 'net/data/ssl/root_stores/root_stores.json'
def main():
if len(sys.argv) > 1:
print('No arguments expected!', file=sys.stderr)
sys.stderr.write(__doc__)
sys.exit(1)
with open(path_util.GetInputFile(NET_ROOT_CERTS_PATH)) as f:
root_stores = json.load(f)
spki_enum = {}
spki_enum[0] = 'Unknown or locally-installed trust anchor'
for spki, spki_data in sorted(root_stores['spkis'].items()):
spki_enum[int(spki_data['id'])] = spki
update_histogram_enum.UpdateHistogramFromDict(
'tools/metrics/histograms/metadata/net/enums.xml', 'NetTrustAnchors',
spki_enum, NET_ROOT_CERTS_PATH, os.path.basename(__file__))
if __name__ == '__main__':
main()
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