configure.py
author Kate McKinley <kmckinley@mozilla.com>
Tue, 26 Jul 2016 13:03:00 +0800
changeset 346851 8dc198cd46fff3b1f6e39ea6e80bb4507bf2cdbe
parent 344557 278b332af0cdbe52578a2ea6498380f3e806e2be
child 350222 9c5103b414491be921f00ef2210968d5b6c3d0a9
permissions -rw-r--r--
Bug 1246540 HSTS Priming Proof of Concept HSTS priming changes the order of mixed-content blocking and HSTS upgrades, and adds a priming request to check if a mixed-content load is accesible over HTTPS and the server supports upgrading via the Strict-Transport-Security header. Every call site that uses AsyncOpen2 passes through the mixed-content blocker, and has a LoadInfo. If the mixed-content blocker marks the load as needing HSTS priming, nsHttpChannel will build and send an HSTS priming request on the same URI with the scheme upgraded to HTTPS. If the server allows the upgrade, then channel performs an internal redirect to the HTTPS URI, otherwise use the result of mixed-content blocker to allow or block the load. nsISiteSecurityService adds an optional boolean out parameter to determine if the HSTS state is already cached for negative assertions. If the host has been probed within the previous 24 hours, no HSTS priming check will be sent. (r=ckerschb,r=mayhemer,r=jld,r=smaug,r=dkeeler,r=jmaher,p=ally)

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import print_function, unicode_literals

import codecs
import json
import os
import subprocess
import sys


base_dir = os.path.abspath(os.path.dirname(__file__))
sys.path.insert(0, os.path.join(base_dir, 'python', 'mozbuild'))
from mozbuild.configure import ConfigureSandbox


def main(argv):
    config = {}
    sandbox = ConfigureSandbox(config, os.environ, argv)
    sandbox.run(os.path.join(os.path.dirname(__file__), 'moz.configure'))

    if sandbox._help:
        return 0

    return config_status(config)


def config_status(config):
    # Sanitize config data to feed config.status
    # Ideally, all the backend and frontend code would handle the booleans, but
    # there are so many things involved, that it's easier to keep config.status
    # untouched for now.
    def sanitized_bools(v):
        if v is True:
            return '1'
        if v is False:
            return ''
        return v

    sanitized_config = {}
    sanitized_config['substs'] = {
        k: sanitized_bools(v) for k, v in config.iteritems()
        if k not in ('DEFINES', 'non_global_defines', 'TOPSRCDIR', 'TOPOBJDIR')
    }
    sanitized_config['defines'] = {
        k: sanitized_bools(v) for k, v in config['DEFINES'].iteritems()
    }
    sanitized_config['non_global_defines'] = config['non_global_defines']
    sanitized_config['topsrcdir'] = config['TOPSRCDIR']
    sanitized_config['topobjdir'] = config['TOPOBJDIR']
    sanitized_config['mozconfig'] = config.get('MOZCONFIG')

    # Create config.status. Eventually, we'll want to just do the work it does
    # here, when we're able to skip configure tests/use cached results/not rely
    # on autoconf.
    print("Creating config.status", file=sys.stderr)
    encoding = 'mbcs' if sys.platform == 'win32' else 'utf-8'
    with codecs.open('config.status', 'w', encoding) as fh:
        fh.write('#!%s\n' % config['PYTHON'])
        fh.write('# coding=%s\n' % encoding)
        # Because we're serializing as JSON but reading as python, the values
        # for True, False and None are true, false and null, which don't exist.
        # Define them.
        fh.write('true, false, null = True, False, None\n')
        for k, v in sanitized_config.iteritems():
            fh.write('%s = ' % k)
            json.dump(v, fh, sort_keys=True, indent=4, ensure_ascii=False)
            fh.write('\n')
        fh.write("__all__ = ['topobjdir', 'topsrcdir', 'defines', "
                 "'non_global_defines', 'substs', 'mozconfig']")

        if config.get('MOZ_BUILD_APP') != 'js' or config.get('JS_STANDALONE'):
            fh.write('''
if __name__ == '__main__':
    args = dict([(name, globals()[name]) for name in __all__])
    from mozbuild.config_status import config_status
    config_status(**args)
''')

    # Other things than us are going to run this file, so we need to give it
    # executable permissions.
    os.chmod('config.status', 0755)
    if config.get('MOZ_BUILD_APP') != 'js' or config.get('JS_STANDALONE'):
        os.environ['WRITE_MOZINFO'] = '1'
        # Until we have access to the virtualenv from this script, execute
        # config.status externally, with the virtualenv python.
        return subprocess.call([config['PYTHON'], 'config.status'])
    return 0


if __name__ == '__main__':
    sys.exit(main(sys.argv))