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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 "content/renderer/media/crypto/proxy_decryptor.h" | 5 #include "content/renderer/media/crypto/proxy_decryptor.h" |
6 | 6 |
7 #include <cstring> | 7 #include <cstring> |
8 | 8 |
9 #include "base/bind.h" | 9 #include "base/bind.h" |
10 #include "base/callback_helpers.h" | 10 #include "base/callback_helpers.h" |
11 #include "base/logging.h" | 11 #include "base/logging.h" |
12 #include "base/strings/string_util.h" | 12 #include "base/strings/string_util.h" |
13 #include "content/renderer/media/crypto/content_decryption_module_factory.h" | 13 #include "content/renderer/media/crypto/content_decryption_module_factory.h" |
14 #include "media/base/cdm_promise.h" | 14 #include "media/base/cdm_callback_promise.h" |
15 #include "media/cdm/json_web_key.h" | 15 #include "media/cdm/json_web_key.h" |
16 #include "media/cdm/key_system_names.h" | 16 #include "media/cdm/key_system_names.h" |
17 | 17 |
18 #if defined(ENABLE_PEPPER_CDMS) | 18 #if defined(ENABLE_PEPPER_CDMS) |
19 #include "content/renderer/media/crypto/pepper_cdm_wrapper.h" | 19 #include "content/renderer/media/crypto/pepper_cdm_wrapper.h" |
20 #endif // defined(ENABLE_PEPPER_CDMS) | 20 #endif // defined(ENABLE_PEPPER_CDMS) |
21 | 21 |
22 #if defined(ENABLE_BROWSER_CDMS) | 22 #if defined(ENABLE_BROWSER_CDMS) |
23 #include "content/renderer/media/crypto/renderer_cdm_manager.h" | 23 #include "content/renderer/media/crypto/renderer_cdm_manager.h" |
24 #endif // defined(ENABLE_BROWSER_CDMS) | 24 #endif // defined(ENABLE_BROWSER_CDMS) |
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105 SessionCreationType session_creation_type = TemporarySession; | 105 SessionCreationType session_creation_type = TemporarySession; |
106 if (HasHeader(init_data, init_data_length, kPrefixedApiLoadSessionHeader)) { | 106 if (HasHeader(init_data, init_data_length, kPrefixedApiLoadSessionHeader)) { |
107 session_creation_type = LoadSession; | 107 session_creation_type = LoadSession; |
108 } else if (HasHeader(init_data, | 108 } else if (HasHeader(init_data, |
109 init_data_length, | 109 init_data_length, |
110 kPrefixedApiPersistentSessionHeader)) { | 110 kPrefixedApiPersistentSessionHeader)) { |
111 session_creation_type = PersistentSession; | 111 session_creation_type = PersistentSession; |
112 } | 112 } |
113 | 113 |
114 scoped_ptr<media::NewSessionCdmPromise> promise( | 114 scoped_ptr<media::NewSessionCdmPromise> promise( |
115 new media::NewSessionCdmPromise( | 115 new media::CdmCallbackPromise<std::string>( |
116 base::Bind(&ProxyDecryptor::SetSessionId, | 116 base::Bind(&ProxyDecryptor::SetSessionId, |
117 weak_ptr_factory_.GetWeakPtr(), | 117 weak_ptr_factory_.GetWeakPtr(), |
118 session_creation_type), | 118 session_creation_type), |
119 base::Bind(&ProxyDecryptor::OnSessionError, | 119 base::Bind(&ProxyDecryptor::OnSessionError, |
120 weak_ptr_factory_.GetWeakPtr(), | 120 weak_ptr_factory_.GetWeakPtr(), |
121 std::string()))); // No session id until created. | 121 std::string()))); // No session id until created. |
122 | 122 |
123 if (session_creation_type == LoadSession) { | 123 if (session_creation_type == LoadSession) { |
124 media_keys_->LoadSession( | 124 media_keys_->LoadSession( |
125 std::string(reinterpret_cast<const char*>( | 125 std::string(reinterpret_cast<const char*>( |
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156 session_id = it->first; | 156 session_id = it->first; |
157 } else { | 157 } else { |
158 OnSessionError(std::string(), | 158 OnSessionError(std::string(), |
159 media::MediaKeys::NOT_SUPPORTED_ERROR, | 159 media::MediaKeys::NOT_SUPPORTED_ERROR, |
160 0, | 160 0, |
161 "SessionId not specified."); | 161 "SessionId not specified."); |
162 return; | 162 return; |
163 } | 163 } |
164 } | 164 } |
165 | 165 |
166 scoped_ptr<media::SimpleCdmPromise> promise( | 166 scoped_ptr<media::SimpleCdmPromise> promise(new media::CdmCallbackPromise<>( |
167 new media::SimpleCdmPromise(base::Bind(&ProxyDecryptor::OnSessionReady, | 167 base::Bind(&ProxyDecryptor::OnSessionReady, |
168 weak_ptr_factory_.GetWeakPtr(), | 168 weak_ptr_factory_.GetWeakPtr(), |
169 web_session_id), | 169 web_session_id), |
170 base::Bind(&ProxyDecryptor::OnSessionError, | 170 base::Bind(&ProxyDecryptor::OnSessionError, |
171 weak_ptr_factory_.GetWeakPtr(), | 171 weak_ptr_factory_.GetWeakPtr(), |
172 web_session_id))); | 172 web_session_id))); |
173 | 173 |
174 // EME WD spec only supports a single array passed to the CDM. For | 174 // EME WD spec only supports a single array passed to the CDM. For |
175 // Clear Key using v0.1b, both arrays are used (|init_data| is key_id). | 175 // Clear Key using v0.1b, both arrays are used (|init_data| is key_id). |
176 // Since the EME WD spec supports the key as a JSON Web Key, | 176 // Since the EME WD spec supports the key as a JSON Web Key, |
177 // convert the 2 arrays to a JWK and pass it as the single array. | 177 // convert the 2 arrays to a JWK and pass it as the single array. |
178 if (is_clear_key_) { | 178 if (is_clear_key_) { |
179 // Decryptor doesn't support empty key ID (see http://crbug.com/123265). | 179 // Decryptor doesn't support empty key ID (see http://crbug.com/123265). |
180 // So ensure a non-empty value is passed. | 180 // So ensure a non-empty value is passed. |
181 if (!init_data) { | 181 if (!init_data) { |
182 static const uint8 kDummyInitData[1] = {0}; | 182 static const uint8 kDummyInitData[1] = {0}; |
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193 promise.Pass()); | 193 promise.Pass()); |
194 return; | 194 return; |
195 } | 195 } |
196 | 196 |
197 media_keys_->UpdateSession(session_id, key, key_length, promise.Pass()); | 197 media_keys_->UpdateSession(session_id, key, key_length, promise.Pass()); |
198 } | 198 } |
199 | 199 |
200 void ProxyDecryptor::CancelKeyRequest(const std::string& web_session_id) { | 200 void ProxyDecryptor::CancelKeyRequest(const std::string& web_session_id) { |
201 DVLOG(1) << "CancelKeyRequest()"; | 201 DVLOG(1) << "CancelKeyRequest()"; |
202 | 202 |
203 scoped_ptr<media::SimpleCdmPromise> promise( | 203 scoped_ptr<media::SimpleCdmPromise> promise(new media::CdmCallbackPromise<>( |
204 new media::SimpleCdmPromise(base::Bind(&ProxyDecryptor::OnSessionClosed, | 204 base::Bind(&ProxyDecryptor::OnSessionClosed, |
205 weak_ptr_factory_.GetWeakPtr(), | 205 weak_ptr_factory_.GetWeakPtr(), |
206 web_session_id), | 206 web_session_id), |
207 base::Bind(&ProxyDecryptor::OnSessionError, | 207 base::Bind(&ProxyDecryptor::OnSessionError, |
208 weak_ptr_factory_.GetWeakPtr(), | 208 weak_ptr_factory_.GetWeakPtr(), |
209 web_session_id))); | 209 web_session_id))); |
210 media_keys_->RemoveSession(web_session_id, promise.Pass()); | 210 media_keys_->RemoveSession(web_session_id, promise.Pass()); |
211 } | 211 } |
212 | 212 |
213 scoped_ptr<media::MediaKeys> ProxyDecryptor::CreateMediaKeys( | 213 scoped_ptr<media::MediaKeys> ProxyDecryptor::CreateMediaKeys( |
214 const std::string& key_system, | 214 const std::string& key_system, |
215 const GURL& security_origin) { | 215 const GURL& security_origin) { |
216 return ContentDecryptionModuleFactory::Create( | 216 return ContentDecryptionModuleFactory::Create( |
217 key_system, | 217 key_system, |
218 security_origin, | 218 security_origin, |
219 #if defined(ENABLE_PEPPER_CDMS) | 219 #if defined(ENABLE_PEPPER_CDMS) |
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324 bool is_persistent = | 324 bool is_persistent = |
325 session_type == PersistentSession || session_type == LoadSession; | 325 session_type == PersistentSession || session_type == LoadSession; |
326 active_sessions_.insert(std::make_pair(web_session_id, is_persistent)); | 326 active_sessions_.insert(std::make_pair(web_session_id, is_persistent)); |
327 | 327 |
328 // For LoadSession(), generate the SessionReady event. | 328 // For LoadSession(), generate the SessionReady event. |
329 if (session_type == LoadSession) | 329 if (session_type == LoadSession) |
330 OnSessionReady(web_session_id); | 330 OnSessionReady(web_session_id); |
331 } | 331 } |
332 | 332 |
333 } // namespace content | 333 } // namespace content |
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