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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/browser/in_process_webkit/indexed_db_key_utility_client.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/lazy_instance.h" | |
| 9 #include "base/synchronization/waitable_event.h" | |
| 10 #include "content/browser/utility_process_host_impl.h" | |
| 11 #include "content/common/indexed_db/indexed_db_key.h" | |
| 12 #include "content/common/indexed_db/indexed_db_key_path.h" | |
| 13 #include "content/common/indexed_db/indexed_db_messages.h" | |
| 14 #include "content/common/utility_messages.h" | |
| 15 #include "content/public/browser/utility_process_host_client.h" | |
| 16 #include "content/public/common/serialized_script_value.h" | |
| 17 | |
| 18 using content::BrowserThread; | |
| 19 using content::IndexedDBKey; | |
| 20 using content::IndexedDBKeyPath; | |
| 21 using content::UtilityProcessHostClient; | |
| 22 using content::SerializedScriptValue; | |
| 23 | |
| 24 // This class is used to obtain IndexedDBKeys from SerializedScriptValues | |
| 25 // given an IDBKeyPath. It uses UtilityProcess to do this inside a sandbox | |
| 26 // (a V8 lock is required there). At this level, all methods are synchronous | |
| 27 // as required by the caller. The public API is used on WEBKIT thread, | |
| 28 // but internally it moves around to UI and IO as needed. | |
| 29 class KeyUtilityClientImpl | |
| 30 : public base::RefCountedThreadSafe<KeyUtilityClientImpl> { | |
| 31 public: | |
| 32 KeyUtilityClientImpl(); | |
| 33 | |
| 34 // Starts the UtilityProcess. Must be called before any other method. | |
| 35 void StartUtilityProcess(); | |
| 36 | |
| 37 // Stops the UtilityProcess. No further keys can be created after this. | |
| 38 void Shutdown(); | |
| 39 | |
| 40 // Synchronously obtain the |keys| from |values| for the given |key_path|. | |
| 41 void CreateIDBKeysFromSerializedValuesAndKeyPath( | |
| 42 const std::vector<SerializedScriptValue>& values, | |
| 43 const IndexedDBKeyPath& key_path, | |
| 44 std::vector<IndexedDBKey>* keys); | |
| 45 | |
| 46 // Synchronously inject |key| into |value| using the given |key_path|, | |
| 47 // returning the new value. | |
| 48 SerializedScriptValue InjectIDBKeyIntoSerializedValue( | |
| 49 const IndexedDBKey& key, | |
| 50 const SerializedScriptValue& value, | |
| 51 const IndexedDBKeyPath& key_path); | |
| 52 | |
| 53 private: | |
| 54 class Client : public UtilityProcessHostClient { | |
| 55 public: | |
| 56 explicit Client(KeyUtilityClientImpl* parent); | |
| 57 | |
| 58 // UtilityProcessHostClient | |
| 59 virtual void OnProcessCrashed(int exit_code); | |
| 60 virtual bool OnMessageReceived(const IPC::Message& message); | |
| 61 | |
| 62 // IPC message handlers | |
| 63 void OnIDBKeysFromValuesAndKeyPathSucceeded( | |
| 64 int id, const std::vector<IndexedDBKey>& keys); | |
| 65 void OnIDBKeysFromValuesAndKeyPathFailed(int id); | |
| 66 void OnInjectIDBKeyFinished(const SerializedScriptValue& value); | |
| 67 | |
| 68 private: | |
| 69 virtual ~Client() {} | |
| 70 | |
| 71 KeyUtilityClientImpl* parent_; | |
| 72 | |
| 73 DISALLOW_COPY_AND_ASSIGN(Client); | |
| 74 }; | |
| 75 | |
| 76 friend class base::RefCountedThreadSafe<KeyUtilityClientImpl>; | |
| 77 ~KeyUtilityClientImpl(); | |
| 78 | |
| 79 void GetRDHAndStartUtilityProcess(); | |
| 80 void StartUtilityProcessInternal(); | |
| 81 void EndUtilityProcessInternal(); | |
| 82 void CallStartIDBKeyFromValueAndKeyPathFromIOThread( | |
| 83 const std::vector<SerializedScriptValue>& values, | |
| 84 const IndexedDBKeyPath& key_path); | |
| 85 void CallStartInjectIDBKeyFromIOThread( | |
| 86 const IndexedDBKey& key, | |
| 87 const SerializedScriptValue& value, | |
| 88 const IndexedDBKeyPath& key_path); | |
| 89 | |
| 90 void SetKeys(const std::vector<IndexedDBKey>& keys); | |
| 91 void FinishCreatingKeys(); | |
| 92 void SetValueAfterInjection(const SerializedScriptValue& value); | |
| 93 void FinishInjectingKey(); | |
| 94 | |
| 95 base::WaitableEvent waitable_event_; | |
| 96 | |
| 97 // Used in both IO and WEBKIT threads, but guarded by WaitableEvent, i.e., | |
| 98 // these members are only set / read when the other thread is blocked. | |
| 99 enum State { | |
| 100 STATE_UNINITIALIZED, | |
| 101 STATE_INITIALIZED, | |
| 102 STATE_CREATING_KEYS, | |
| 103 STATE_INJECTING_KEY, | |
| 104 STATE_SHUTDOWN, | |
| 105 }; | |
| 106 State state_; | |
| 107 std::vector<IndexedDBKey> keys_; | |
| 108 SerializedScriptValue value_after_injection_; | |
| 109 | |
| 110 // Used in the IO thread. | |
| 111 base::WeakPtr<content::UtilityProcessHost> utility_process_host_; | |
| 112 scoped_refptr<Client> client_; | |
| 113 | |
| 114 DISALLOW_COPY_AND_ASSIGN(KeyUtilityClientImpl); | |
| 115 }; | |
| 116 | |
| 117 // IndexedDBKeyUtilityClient definitions. | |
| 118 | |
| 119 static base::LazyInstance<IndexedDBKeyUtilityClient> client_instance = | |
| 120 LAZY_INSTANCE_INITIALIZER; | |
| 121 | |
| 122 IndexedDBKeyUtilityClient::IndexedDBKeyUtilityClient() | |
| 123 : is_shutdown_(false) { | |
| 124 // Note that creating the impl_ object is deferred until it is first needed, | |
| 125 // as this class can be constructed even though it never gets used. | |
| 126 } | |
| 127 | |
| 128 IndexedDBKeyUtilityClient::~IndexedDBKeyUtilityClient() { | |
| 129 DCHECK(!impl_ || is_shutdown_); | |
| 130 } | |
| 131 | |
| 132 // static | |
| 133 void IndexedDBKeyUtilityClient::Shutdown() { | |
| 134 IndexedDBKeyUtilityClient* instance = client_instance.Pointer(); | |
| 135 if (!instance->impl_) | |
| 136 return; | |
| 137 | |
| 138 instance->is_shutdown_ = true; | |
| 139 instance->impl_->Shutdown(); | |
| 140 } | |
| 141 | |
| 142 // static | |
| 143 void IndexedDBKeyUtilityClient::CreateIDBKeysFromSerializedValuesAndKeyPath( | |
| 144 const std::vector<SerializedScriptValue>& values, | |
| 145 const IndexedDBKeyPath& key_path, | |
| 146 std::vector<IndexedDBKey>* keys) { | |
| 147 IndexedDBKeyUtilityClient* instance = client_instance.Pointer(); | |
| 148 | |
| 149 if (instance->is_shutdown_) { | |
| 150 keys->clear(); | |
| 151 return; | |
| 152 } | |
| 153 | |
| 154 if (!instance->impl_) { | |
| 155 instance->impl_ = new KeyUtilityClientImpl(); | |
| 156 instance->impl_->StartUtilityProcess(); | |
| 157 } | |
| 158 | |
| 159 instance->impl_->CreateIDBKeysFromSerializedValuesAndKeyPath(values, key_path, | |
| 160 keys); | |
| 161 } | |
| 162 | |
| 163 // static | |
| 164 SerializedScriptValue | |
| 165 IndexedDBKeyUtilityClient::InjectIDBKeyIntoSerializedValue( | |
| 166 const IndexedDBKey& key, const SerializedScriptValue& value, | |
| 167 const IndexedDBKeyPath& key_path) { | |
| 168 IndexedDBKeyUtilityClient* instance = client_instance.Pointer(); | |
| 169 | |
| 170 if (instance->is_shutdown_) | |
| 171 return SerializedScriptValue(); | |
| 172 | |
| 173 if (!instance->impl_) { | |
| 174 instance->impl_ = new KeyUtilityClientImpl(); | |
| 175 instance->impl_->StartUtilityProcess(); | |
| 176 } | |
| 177 | |
| 178 return instance->impl_->InjectIDBKeyIntoSerializedValue(key, value, key_path); | |
| 179 } | |
| 180 | |
| 181 | |
| 182 | |
| 183 // KeyUtilityClientImpl definitions. | |
| 184 | |
| 185 void KeyUtilityClientImpl::Shutdown() { | |
| 186 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 187 | |
| 188 if (utility_process_host_) { | |
| 189 utility_process_host_->EndBatchMode(); | |
| 190 utility_process_host_.reset(); | |
| 191 } | |
| 192 client_ = NULL; | |
| 193 state_ = STATE_SHUTDOWN; | |
| 194 } | |
| 195 | |
| 196 KeyUtilityClientImpl::KeyUtilityClientImpl() | |
| 197 : waitable_event_(false, false), | |
| 198 state_(STATE_UNINITIALIZED) { | |
| 199 } | |
| 200 | |
| 201 KeyUtilityClientImpl::~KeyUtilityClientImpl() { | |
| 202 DCHECK(state_ == STATE_UNINITIALIZED || state_ == STATE_SHUTDOWN); | |
| 203 DCHECK(!utility_process_host_); | |
| 204 DCHECK(!client_.get()); | |
| 205 } | |
| 206 | |
| 207 void KeyUtilityClientImpl::StartUtilityProcess() { | |
| 208 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT_DEPRECATED)); | |
| 209 DCHECK(state_ == STATE_UNINITIALIZED); | |
| 210 | |
| 211 GetRDHAndStartUtilityProcess(); | |
| 212 waitable_event_.Wait(); | |
| 213 | |
| 214 DCHECK(state_ == STATE_INITIALIZED); | |
| 215 } | |
| 216 | |
| 217 void KeyUtilityClientImpl::CreateIDBKeysFromSerializedValuesAndKeyPath( | |
| 218 const std::vector<SerializedScriptValue>& values, | |
| 219 const IndexedDBKeyPath& key_path, | |
| 220 std::vector<IndexedDBKey>* keys) { | |
| 221 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT_DEPRECATED)); | |
| 222 if (state_ == STATE_SHUTDOWN) { | |
| 223 keys->clear(); | |
| 224 return; | |
| 225 } | |
| 226 | |
| 227 DCHECK(state_ == STATE_INITIALIZED); | |
| 228 | |
| 229 state_ = STATE_CREATING_KEYS; | |
| 230 CallStartIDBKeyFromValueAndKeyPathFromIOThread(values, key_path); | |
| 231 waitable_event_.Wait(); | |
| 232 DCHECK(state_ == STATE_INITIALIZED); | |
| 233 | |
| 234 *keys = keys_; | |
| 235 } | |
| 236 | |
| 237 SerializedScriptValue KeyUtilityClientImpl::InjectIDBKeyIntoSerializedValue( | |
| 238 const IndexedDBKey& key, | |
| 239 const SerializedScriptValue& value, | |
| 240 const IndexedDBKeyPath& key_path) { | |
| 241 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT_DEPRECATED)); | |
| 242 if (state_ == STATE_SHUTDOWN) | |
| 243 return SerializedScriptValue(); | |
| 244 | |
| 245 DCHECK(state_ == STATE_INITIALIZED); | |
| 246 | |
| 247 state_ = STATE_INJECTING_KEY; | |
| 248 CallStartInjectIDBKeyFromIOThread(key, value, key_path); | |
| 249 | |
| 250 waitable_event_.Wait(); | |
| 251 DCHECK(state_ == STATE_INITIALIZED); | |
| 252 | |
| 253 return value_after_injection_; | |
| 254 } | |
| 255 | |
| 256 | |
| 257 void KeyUtilityClientImpl::GetRDHAndStartUtilityProcess() { | |
| 258 // In order to start the UtilityProcess, we need to grab | |
| 259 // a pointer to the ResourceDispatcherHost. This can only | |
| 260 // be done on the UI thread. See the comment at the top of | |
| 261 // browser_process.h | |
| 262 if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) { | |
| 263 BrowserThread::PostTask( | |
| 264 BrowserThread::UI, FROM_HERE, | |
| 265 base::Bind(&KeyUtilityClientImpl::GetRDHAndStartUtilityProcess, this)); | |
| 266 return; | |
| 267 } | |
| 268 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 269 StartUtilityProcessInternal(); | |
| 270 } | |
| 271 | |
| 272 void KeyUtilityClientImpl::StartUtilityProcessInternal() { | |
| 273 // The ResourceDispatcherHost can only be used on the IO thread. | |
| 274 if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) { | |
| 275 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); | |
| 276 BrowserThread::PostTask( | |
| 277 BrowserThread::IO, FROM_HERE, | |
| 278 base::Bind(&KeyUtilityClientImpl::StartUtilityProcessInternal, this)); | |
| 279 return; | |
| 280 } | |
| 281 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 282 DCHECK(state_ == STATE_UNINITIALIZED); | |
| 283 | |
| 284 client_ = new KeyUtilityClientImpl::Client(this); | |
| 285 utility_process_host_ = (new UtilityProcessHostImpl( | |
| 286 client_.get(), BrowserThread::IO))->AsWeakPtr(); | |
| 287 utility_process_host_->EnableZygote(); | |
| 288 utility_process_host_->StartBatchMode(); | |
| 289 state_ = STATE_INITIALIZED; | |
| 290 waitable_event_.Signal(); | |
| 291 } | |
| 292 | |
| 293 void KeyUtilityClientImpl::EndUtilityProcessInternal() { | |
| 294 if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) { | |
| 295 BrowserThread::PostTask( | |
| 296 BrowserThread::IO, FROM_HERE, | |
| 297 base::Bind(&KeyUtilityClientImpl::EndUtilityProcessInternal, this)); | |
| 298 return; | |
| 299 } | |
| 300 | |
| 301 if (utility_process_host_) { | |
| 302 utility_process_host_->EndBatchMode(); | |
| 303 utility_process_host_.reset(); | |
| 304 } | |
| 305 client_ = NULL; | |
| 306 state_ = STATE_SHUTDOWN; | |
| 307 waitable_event_.Signal(); | |
| 308 } | |
| 309 | |
| 310 void KeyUtilityClientImpl::CallStartIDBKeyFromValueAndKeyPathFromIOThread( | |
| 311 const std::vector<SerializedScriptValue>& values, | |
| 312 const IndexedDBKeyPath& key_path) { | |
| 313 if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) { | |
| 314 BrowserThread::PostTask( | |
| 315 BrowserThread::IO, FROM_HERE, | |
| 316 base::Bind(&KeyUtilityClientImpl:: | |
| 317 CallStartIDBKeyFromValueAndKeyPathFromIOThread, | |
| 318 this, values, key_path)); | |
| 319 return; | |
| 320 } | |
| 321 | |
| 322 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 323 if (utility_process_host_) { | |
| 324 utility_process_host_->Send(new UtilityMsg_IDBKeysFromValuesAndKeyPath( | |
| 325 0, values, key_path)); | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 void KeyUtilityClientImpl::CallStartInjectIDBKeyFromIOThread( | |
| 330 const IndexedDBKey& key, | |
| 331 const SerializedScriptValue& value, | |
| 332 const IndexedDBKeyPath& key_path) { | |
| 333 if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) { | |
| 334 BrowserThread::PostTask( | |
| 335 BrowserThread::IO, FROM_HERE, | |
| 336 base::Bind(&KeyUtilityClientImpl::CallStartInjectIDBKeyFromIOThread, | |
| 337 this, key, value, key_path)); | |
| 338 return; | |
| 339 } | |
| 340 | |
| 341 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 342 if (utility_process_host_) | |
| 343 utility_process_host_->Send(new UtilityMsg_InjectIDBKey( | |
| 344 key, value, key_path)); | |
| 345 } | |
| 346 | |
| 347 void KeyUtilityClientImpl::SetKeys(const std::vector<IndexedDBKey>& keys) { | |
| 348 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 349 keys_ = keys; | |
| 350 } | |
| 351 | |
| 352 void KeyUtilityClientImpl::FinishCreatingKeys() { | |
| 353 DCHECK(state_ == STATE_CREATING_KEYS); | |
| 354 state_ = STATE_INITIALIZED; | |
| 355 waitable_event_.Signal(); | |
| 356 } | |
| 357 | |
| 358 void KeyUtilityClientImpl::SetValueAfterInjection( | |
| 359 const SerializedScriptValue& value) { | |
| 360 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | |
| 361 value_after_injection_ = value; | |
| 362 } | |
| 363 | |
| 364 void KeyUtilityClientImpl::FinishInjectingKey() { | |
| 365 DCHECK(state_ == STATE_INJECTING_KEY); | |
| 366 state_ = STATE_INITIALIZED; | |
| 367 waitable_event_.Signal(); | |
| 368 } | |
| 369 | |
| 370 KeyUtilityClientImpl::Client::Client(KeyUtilityClientImpl* parent) | |
| 371 : parent_(parent) { | |
| 372 } | |
| 373 | |
| 374 void KeyUtilityClientImpl::Client::OnProcessCrashed(int exit_code) { | |
| 375 if (parent_->state_ == STATE_CREATING_KEYS) | |
| 376 parent_->FinishCreatingKeys(); | |
| 377 parent_->Shutdown(); | |
| 378 } | |
| 379 | |
| 380 bool KeyUtilityClientImpl::Client::OnMessageReceived( | |
| 381 const IPC::Message& message) { | |
| 382 bool handled = true; | |
| 383 IPC_BEGIN_MESSAGE_MAP(KeyUtilityClientImpl::Client, message) | |
| 384 IPC_MESSAGE_HANDLER(UtilityHostMsg_IDBKeysFromValuesAndKeyPath_Succeeded, | |
| 385 OnIDBKeysFromValuesAndKeyPathSucceeded) | |
| 386 IPC_MESSAGE_HANDLER(UtilityHostMsg_InjectIDBKey_Finished, | |
| 387 OnInjectIDBKeyFinished) | |
| 388 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 389 IPC_END_MESSAGE_MAP() | |
| 390 return handled; | |
| 391 } | |
| 392 | |
| 393 void KeyUtilityClientImpl::Client::OnIDBKeysFromValuesAndKeyPathSucceeded( | |
| 394 int id, const std::vector<IndexedDBKey>& keys) { | |
| 395 parent_->SetKeys(keys); | |
| 396 parent_->FinishCreatingKeys(); | |
| 397 } | |
| 398 | |
| 399 void KeyUtilityClientImpl::Client::OnInjectIDBKeyFinished( | |
| 400 const SerializedScriptValue& value) { | |
| 401 parent_->SetValueAfterInjection(value); | |
| 402 parent_->FinishInjectingKey(); | |
| 403 } | |
| 404 | |
| 405 void KeyUtilityClientImpl::Client::OnIDBKeysFromValuesAndKeyPathFailed( | |
| 406 int id) { | |
| 407 parent_->FinishCreatingKeys(); | |
| 408 } | |
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Chromium Code Reviews
Issue 10834350:
Remove all the indexeddb-related utility process code (Closed)
Base URL: http://git.chromium.org/chromium/src.git@opencursor-cleanup