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Issue 1132223002: Sanitize data before providing it to the CDM (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: windows change Created 5 years, 7 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "media/cdm/key_system_names.h" 5 #include "media/cdm/key_system_names.h"
6 6
7 #include <string> 7 #include <string>
8 8
9 namespace media { 9 namespace media {
10 10
11 const char kClearKey[] = "org.w3.clearkey"; 11 const char kClearKey[] = "org.w3.clearkey";
12 const char kExternalClearKey[] = "org.chromium.externalclearkey"; 12 const char kExternalClearKey[] = "org.chromium.externalclearkey";
13 13
14 bool IsClearKey(const std::string& key_system) {
15 return key_system == kClearKey;
16 }
17
14 bool IsParentKeySystemOf(const std::string& parent_key_system, 18 bool IsParentKeySystemOf(const std::string& parent_key_system,
15 const std::string& key_system) { 19 const std::string& key_system) {
16 std::string prefix = parent_key_system + '.'; 20 std::string prefix = parent_key_system + '.';
17 return key_system.substr(0, prefix.size()) == prefix; 21 return key_system.substr(0, prefix.size()) == prefix;
18 } 22 }
19 23
20 bool IsExternalClearKey(const std::string& key_system) { 24 bool IsExternalClearKey(const std::string& key_system) {
21 return key_system == kExternalClearKey || 25 return key_system == kExternalClearKey ||
22 IsParentKeySystemOf(kExternalClearKey, key_system); 26 IsParentKeySystemOf(kExternalClearKey, key_system);
23 } 27 }
24 28
25 } // namespace media 29 } // namespace media
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