security/apps/gen_cert_header.py

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 # This Source Code Form is subject to the terms of the Mozilla Public
     2 # License, v. 2.0. If a copy of the MPL was not distributed with this
     3 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
     5 import sys
     6 import binascii
     8 def file_byte_generator(filename, block_size = 512):
     9   with open(filename, "rb") as f:
    10     while True:
    11       block = f.read(block_size)
    12       if block:
    13         for byte in block:
    14           yield byte
    15       else:
    16         break
    18 def create_header(array_name, in_filename):
    19   hexified = ["0x" + binascii.hexlify(byte) for byte in file_byte_generator(in_filename)]
    20   print "const uint8_t " + array_name + "[] = {"
    21   print ", ".join(hexified)
    22   print "};"
    23   return 0
    25 if __name__ == '__main__':
    26   if len(sys.argv) < 3:
    27     print 'ERROR: usage: gen_cert_header.py array_name in_filename'
    28     sys.exit(1);
    29   sys.exit(create_header(sys.argv[1], sys.argv[2]))

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