blob: b714b571178f6c6e65ee416d36e6f3582cc6e743 [file] [log] [blame]
#
# Copyright 2017 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Utility to apply GetKeys() related changes to wv_cdm.
Such changes are required for x64x11-wv to support key statuses.
"""
import os
import subprocess
def GetWideVinePath():
"""Function to return the path to wv cdm."""
paths = ['starboard', 'linux', 'x64x11', 'wv']
current_path = os.path.dirname(os.path.realpath(__file__))
for path in reversed(paths):
assert os.path.basename(current_path) == path
current_path = os.path.dirname(current_path)
return os.path.join(current_path, 'third_party', 'cdm')
def GetLastGitCommit():
"""Function to return the hash of the last commit."""
return subprocess.check_output(['git', 'log', '--oneline', '-1'])[:7]
def GetCurrentGitBranch():
"""Function to return the current git branch."""
branches = subprocess.check_output(['git', 'branch']).split('\n')
current_branches = [branch for branch in branches if branch[:2] == '* ']
if len(current_branches) == 1:
return current_branches[0][2:].strip()
return ''
def PatchWideVine():
"""Function to patch wv cdm with the `wv_cdm_get_keys.diff` if not applied."""
os.chdir(GetWideVinePath())
with open('cdm/include/content_decryption_module.h') as f:
if f.read().find('GetKeys') != -1:
# We have already patched WideVine
print 'WideVine has already been been patched with GetKeys() support.'
return
if (GetCurrentGitBranch() != 'master' and
GetCurrentGitBranch() != '(HEAD detached at 5ae19b0)' and
GetLastGitCommit() != '5ae19b0'):
raise Exception('WideVine is not at master or `5ae19b0`'
', not proceed to avoid overwriting changes.')
if (subprocess.call(['git', 'diff', '--exit-code']) == 1 or
subprocess.call(['git', 'diff', '--cached', '--exit-code']) == 1):
raise Exception('WideVine repository is not clean.')
subprocess.check_call(
['git', 'checkout', '--quiet', '-b', 'wv2.2', 'tags/v2.2'])
assert GetLastGitCommit() == '5ae19b0'
subprocess.check_call(
['git', 'apply', '../../starboard/linux/x64x11/wv_cdm_get_keys.diff'])
subprocess.check_call(
['git', 'commit', '-a', '--quiet', '-m', '"Add GetKeys() support"'])
with open('cdm/include/content_decryption_module.h') as f:
assert f.read().find('GetKeys') != -1
print('WideVine has been patched with GetKeys() support, '
'remember to re-run gyp_driver!')
PatchWideVine()