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1 // Copyright 2014 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 "chrome/browser/net/sqlite_channel_id_store.h" | |
6 | |
7 #include <list> | |
8 #include <set> | |
9 | |
10 #include "base/basictypes.h" | |
11 #include "base/bind.h" | |
12 #include "base/files/file_path.h" | |
13 #include "base/files/file_util.h" | |
14 #include "base/logging.h" | |
15 #include "base/memory/scoped_ptr.h" | |
16 #include "base/metrics/histogram.h" | |
17 #include "base/strings/string_util.h" | |
18 #include "base/threading/thread.h" | |
19 #include "base/threading/thread_restrictions.h" | |
20 #include "net/cert/x509_certificate.h" | |
21 #include "net/cookies/cookie_util.h" | |
22 #include "net/ssl/ssl_client_cert_type.h" | |
23 #include "sql/error_delegate_util.h" | |
24 #include "sql/meta_table.h" | |
25 #include "sql/statement.h" | |
26 #include "sql/transaction.h" | |
27 #include "third_party/sqlite/sqlite3.h" | |
28 #include "url/gurl.h" | |
29 #include "webkit/browser/quota/special_storage_policy.h" | |
30 | |
31 // This class is designed to be shared between any calling threads and the | |
32 // background task runner. It batches operations and commits them on a timer. | |
33 class SQLiteChannelIDStore::Backend | |
34 : public base::RefCountedThreadSafe<SQLiteChannelIDStore::Backend> { | |
35 public: | |
36 Backend( | |
37 const base::FilePath& path, | |
38 const scoped_refptr<base::SequencedTaskRunner>& background_task_runner, | |
39 storage::SpecialStoragePolicy* special_storage_policy) | |
40 : path_(path), | |
41 num_pending_(0), | |
42 force_keep_session_state_(false), | |
43 background_task_runner_(background_task_runner), | |
44 special_storage_policy_(special_storage_policy), | |
45 corruption_detected_(false) {} | |
46 | |
47 // Creates or loads the SQLite database. | |
48 void Load(const LoadedCallback& loaded_callback); | |
49 | |
50 // Batch a channel ID addition. | |
51 void AddChannelID( | |
52 const net::DefaultChannelIDStore::ChannelID& channel_id); | |
53 | |
54 // Batch a channel ID deletion. | |
55 void DeleteChannelID( | |
56 const net::DefaultChannelIDStore::ChannelID& channel_id); | |
57 | |
58 // Commit any pending operations and close the database. This must be called | |
59 // before the object is destructed. | |
60 void Close(); | |
61 | |
62 void SetForceKeepSessionState(); | |
63 | |
64 private: | |
65 void LoadOnDBThread( | |
66 ScopedVector<net::DefaultChannelIDStore::ChannelID>* channel_ids); | |
67 | |
68 friend class base::RefCountedThreadSafe<SQLiteChannelIDStore::Backend>; | |
69 | |
70 // You should call Close() before destructing this object. | |
71 ~Backend() { | |
72 DCHECK(!db_.get()) << "Close should have already been called."; | |
73 DCHECK(num_pending_ == 0 && pending_.empty()); | |
74 } | |
75 | |
76 // Database upgrade statements. | |
77 bool EnsureDatabaseVersion(); | |
78 | |
79 class PendingOperation { | |
80 public: | |
81 typedef enum { | |
82 CHANNEL_ID_ADD, | |
83 CHANNEL_ID_DELETE | |
84 } OperationType; | |
85 | |
86 PendingOperation( | |
87 OperationType op, | |
88 const net::DefaultChannelIDStore::ChannelID& channel_id) | |
89 : op_(op), channel_id_(channel_id) {} | |
90 | |
91 OperationType op() const { return op_; } | |
92 const net::DefaultChannelIDStore::ChannelID& channel_id() const { | |
93 return channel_id_; | |
94 } | |
95 | |
96 private: | |
97 OperationType op_; | |
98 net::DefaultChannelIDStore::ChannelID channel_id_; | |
99 }; | |
100 | |
101 private: | |
102 // Batch a channel id operation (add or delete). | |
103 void BatchOperation( | |
104 PendingOperation::OperationType op, | |
105 const net::DefaultChannelIDStore::ChannelID& channel_id); | |
106 // Commit our pending operations to the database. | |
107 void Commit(); | |
108 // Close() executed on the background thread. | |
109 void InternalBackgroundClose(); | |
110 | |
111 void DeleteCertificatesOnShutdown(); | |
112 | |
113 void DatabaseErrorCallback(int error, sql::Statement* stmt); | |
114 void KillDatabase(); | |
115 | |
116 base::FilePath path_; | |
117 scoped_ptr<sql::Connection> db_; | |
118 sql::MetaTable meta_table_; | |
119 | |
120 typedef std::list<PendingOperation*> PendingOperationsList; | |
121 PendingOperationsList pending_; | |
122 PendingOperationsList::size_type num_pending_; | |
123 // True if the persistent store should skip clear on exit rules. | |
124 bool force_keep_session_state_; | |
125 // Guard |pending_|, |num_pending_| and |force_keep_session_state_|. | |
126 base::Lock lock_; | |
127 | |
128 // Cache of origins we have channel IDs stored for. | |
129 std::set<std::string> channel_id_origins_; | |
130 | |
131 scoped_refptr<base::SequencedTaskRunner> background_task_runner_; | |
132 | |
133 scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy_; | |
134 | |
135 // Indicates if the kill-database callback has been scheduled. | |
136 bool corruption_detected_; | |
137 | |
138 DISALLOW_COPY_AND_ASSIGN(Backend); | |
139 }; | |
140 | |
141 // Version number of the database. | |
142 static const int kCurrentVersionNumber = 4; | |
143 static const int kCompatibleVersionNumber = 1; | |
144 | |
145 namespace { | |
146 | |
147 // Initializes the certs table, returning true on success. | |
148 bool InitTable(sql::Connection* db) { | |
149 // The table is named "origin_bound_certs" for backwards compatability before | |
150 // we renamed this class to SQLiteChannelIDStore. Likewise, the primary | |
151 // key is "origin", but now can be other things like a plain domain. | |
152 if (!db->DoesTableExist("origin_bound_certs")) { | |
153 if (!db->Execute("CREATE TABLE origin_bound_certs (" | |
154 "origin TEXT NOT NULL UNIQUE PRIMARY KEY," | |
155 "private_key BLOB NOT NULL," | |
156 "cert BLOB NOT NULL," | |
157 "cert_type INTEGER," | |
158 "expiration_time INTEGER," | |
159 "creation_time INTEGER)")) | |
160 return false; | |
161 } | |
162 | |
163 return true; | |
164 } | |
165 | |
166 } // namespace | |
167 | |
168 void SQLiteChannelIDStore::Backend::Load( | |
169 const LoadedCallback& loaded_callback) { | |
170 // This function should be called only once per instance. | |
171 DCHECK(!db_.get()); | |
172 scoped_ptr<ScopedVector<net::DefaultChannelIDStore::ChannelID> > | |
173 channel_ids(new ScopedVector<net::DefaultChannelIDStore::ChannelID>()); | |
174 ScopedVector<net::DefaultChannelIDStore::ChannelID>* channel_ids_ptr = | |
175 channel_ids.get(); | |
176 | |
177 background_task_runner_->PostTaskAndReply( | |
178 FROM_HERE, | |
179 base::Bind(&Backend::LoadOnDBThread, this, channel_ids_ptr), | |
180 base::Bind(loaded_callback, base::Passed(&channel_ids))); | |
181 } | |
182 | |
183 void SQLiteChannelIDStore::Backend::LoadOnDBThread( | |
184 ScopedVector<net::DefaultChannelIDStore::ChannelID>* channel_ids) { | |
185 DCHECK(background_task_runner_->RunsTasksOnCurrentThread()); | |
186 | |
187 // This method should be called only once per instance. | |
188 DCHECK(!db_.get()); | |
189 | |
190 base::TimeTicks start = base::TimeTicks::Now(); | |
191 | |
192 // Ensure the parent directory for storing certs is created before reading | |
193 // from it. | |
194 const base::FilePath dir = path_.DirName(); | |
195 if (!base::PathExists(dir) && !base::CreateDirectory(dir)) | |
196 return; | |
197 | |
198 int64 db_size = 0; | |
199 if (base::GetFileSize(path_, &db_size)) | |
200 UMA_HISTOGRAM_COUNTS("DomainBoundCerts.DBSizeInKB", db_size / 1024 ); | |
201 | |
202 db_.reset(new sql::Connection); | |
203 db_->set_histogram_tag("DomainBoundCerts"); | |
204 | |
205 // Unretained to avoid a ref loop with db_. | |
206 db_->set_error_callback( | |
207 base::Bind(&SQLiteChannelIDStore::Backend::DatabaseErrorCallback, | |
208 base::Unretained(this))); | |
209 | |
210 if (!db_->Open(path_)) { | |
211 NOTREACHED() << "Unable to open cert DB."; | |
212 if (corruption_detected_) | |
213 KillDatabase(); | |
214 db_.reset(); | |
215 return; | |
216 } | |
217 | |
218 if (!EnsureDatabaseVersion() || !InitTable(db_.get())) { | |
219 NOTREACHED() << "Unable to open cert DB."; | |
220 if (corruption_detected_) | |
221 KillDatabase(); | |
222 meta_table_.Reset(); | |
223 db_.reset(); | |
224 return; | |
225 } | |
226 | |
227 db_->Preload(); | |
228 | |
229 // Slurp all the certs into the out-vector. | |
230 sql::Statement smt(db_->GetUniqueStatement( | |
231 "SELECT origin, private_key, cert, cert_type, expiration_time, " | |
232 "creation_time FROM origin_bound_certs")); | |
233 if (!smt.is_valid()) { | |
234 if (corruption_detected_) | |
235 KillDatabase(); | |
236 meta_table_.Reset(); | |
237 db_.reset(); | |
238 return; | |
239 } | |
240 | |
241 while (smt.Step()) { | |
242 net::SSLClientCertType type = | |
243 static_cast<net::SSLClientCertType>(smt.ColumnInt(3)); | |
244 if (type != net::CLIENT_CERT_ECDSA_SIGN) | |
245 continue; | |
246 std::string private_key_from_db, cert_from_db; | |
247 smt.ColumnBlobAsString(1, &private_key_from_db); | |
248 smt.ColumnBlobAsString(2, &cert_from_db); | |
249 scoped_ptr<net::DefaultChannelIDStore::ChannelID> channel_id( | |
250 new net::DefaultChannelIDStore::ChannelID( | |
251 smt.ColumnString(0), // origin | |
252 base::Time::FromInternalValue(smt.ColumnInt64(5)), | |
253 base::Time::FromInternalValue(smt.ColumnInt64(4)), | |
254 private_key_from_db, | |
255 cert_from_db)); | |
256 channel_id_origins_.insert(channel_id->server_identifier()); | |
257 channel_ids->push_back(channel_id.release()); | |
258 } | |
259 | |
260 UMA_HISTOGRAM_COUNTS_10000("DomainBoundCerts.DBLoadedCount", | |
261 channel_ids->size()); | |
262 base::TimeDelta load_time = base::TimeTicks::Now() - start; | |
263 UMA_HISTOGRAM_CUSTOM_TIMES("DomainBoundCerts.DBLoadTime", | |
264 load_time, | |
265 base::TimeDelta::FromMilliseconds(1), | |
266 base::TimeDelta::FromMinutes(1), | |
267 50); | |
268 DVLOG(1) << "loaded " << channel_ids->size() << " in " | |
269 << load_time.InMilliseconds() << " ms"; | |
270 } | |
271 | |
272 bool SQLiteChannelIDStore::Backend::EnsureDatabaseVersion() { | |
273 // Version check. | |
274 if (!meta_table_.Init( | |
275 db_.get(), kCurrentVersionNumber, kCompatibleVersionNumber)) { | |
276 return false; | |
277 } | |
278 | |
279 if (meta_table_.GetCompatibleVersionNumber() > kCurrentVersionNumber) { | |
280 LOG(WARNING) << "Server bound cert database is too new."; | |
281 return false; | |
282 } | |
283 | |
284 int cur_version = meta_table_.GetVersionNumber(); | |
285 if (cur_version == 1) { | |
286 sql::Transaction transaction(db_.get()); | |
287 if (!transaction.Begin()) | |
288 return false; | |
289 if (!db_->Execute("ALTER TABLE origin_bound_certs ADD COLUMN cert_type " | |
290 "INTEGER")) { | |
291 LOG(WARNING) << "Unable to update server bound cert database to " | |
292 << "version 2."; | |
293 return false; | |
294 } | |
295 // All certs in version 1 database are rsa_sign, which are unsupported. | |
296 // Just discard them all. | |
297 if (!db_->Execute("DELETE from origin_bound_certs")) { | |
298 LOG(WARNING) << "Unable to update server bound cert database to " | |
299 << "version 2."; | |
300 return false; | |
301 } | |
302 ++cur_version; | |
303 meta_table_.SetVersionNumber(cur_version); | |
304 meta_table_.SetCompatibleVersionNumber( | |
305 std::min(cur_version, kCompatibleVersionNumber)); | |
306 transaction.Commit(); | |
307 } | |
308 | |
309 if (cur_version <= 3) { | |
310 sql::Transaction transaction(db_.get()); | |
311 if (!transaction.Begin()) | |
312 return false; | |
313 | |
314 if (cur_version == 2) { | |
315 if (!db_->Execute("ALTER TABLE origin_bound_certs ADD COLUMN " | |
316 "expiration_time INTEGER")) { | |
317 LOG(WARNING) << "Unable to update server bound cert database to " | |
318 << "version 4."; | |
319 return false; | |
320 } | |
321 } | |
322 | |
323 if (!db_->Execute("ALTER TABLE origin_bound_certs ADD COLUMN " | |
324 "creation_time INTEGER")) { | |
325 LOG(WARNING) << "Unable to update server bound cert database to " | |
326 << "version 4."; | |
327 return false; | |
328 } | |
329 | |
330 sql::Statement smt(db_->GetUniqueStatement( | |
331 "SELECT origin, cert FROM origin_bound_certs")); | |
332 sql::Statement update_expires_smt(db_->GetUniqueStatement( | |
333 "UPDATE origin_bound_certs SET expiration_time = ? WHERE origin = ?")); | |
334 sql::Statement update_creation_smt(db_->GetUniqueStatement( | |
335 "UPDATE origin_bound_certs SET creation_time = ? WHERE origin = ?")); | |
336 if (!smt.is_valid() || | |
337 !update_expires_smt.is_valid() || | |
338 !update_creation_smt.is_valid()) { | |
339 LOG(WARNING) << "Unable to update server bound cert database to " | |
340 << "version 4."; | |
341 return false; | |
342 } | |
343 | |
344 while (smt.Step()) { | |
345 std::string origin = smt.ColumnString(0); | |
346 std::string cert_from_db; | |
347 smt.ColumnBlobAsString(1, &cert_from_db); | |
348 // Parse the cert and extract the real value and then update the DB. | |
349 scoped_refptr<net::X509Certificate> cert( | |
350 net::X509Certificate::CreateFromBytes( | |
351 cert_from_db.data(), cert_from_db.size())); | |
352 if (cert.get()) { | |
353 if (cur_version == 2) { | |
354 update_expires_smt.Reset(true); | |
355 update_expires_smt.BindInt64(0, | |
356 cert->valid_expiry().ToInternalValue()); | |
357 update_expires_smt.BindString(1, origin); | |
358 if (!update_expires_smt.Run()) { | |
359 LOG(WARNING) << "Unable to update server bound cert database to " | |
360 << "version 4."; | |
361 return false; | |
362 } | |
363 } | |
364 | |
365 update_creation_smt.Reset(true); | |
366 update_creation_smt.BindInt64(0, cert->valid_start().ToInternalValue()); | |
367 update_creation_smt.BindString(1, origin); | |
368 if (!update_creation_smt.Run()) { | |
369 LOG(WARNING) << "Unable to update server bound cert database to " | |
370 << "version 4."; | |
371 return false; | |
372 } | |
373 } else { | |
374 // If there's a cert we can't parse, just leave it. It'll get replaced | |
375 // with a new one if we ever try to use it. | |
376 LOG(WARNING) << "Error parsing cert for database upgrade for origin " | |
377 << smt.ColumnString(0); | |
378 } | |
379 } | |
380 | |
381 cur_version = 4; | |
382 meta_table_.SetVersionNumber(cur_version); | |
383 meta_table_.SetCompatibleVersionNumber( | |
384 std::min(cur_version, kCompatibleVersionNumber)); | |
385 transaction.Commit(); | |
386 } | |
387 | |
388 // Put future migration cases here. | |
389 | |
390 // When the version is too old, we just try to continue anyway, there should | |
391 // not be a released product that makes a database too old for us to handle. | |
392 LOG_IF(WARNING, cur_version < kCurrentVersionNumber) << | |
393 "Server bound cert database version " << cur_version << | |
394 " is too old to handle."; | |
395 | |
396 return true; | |
397 } | |
398 | |
399 void SQLiteChannelIDStore::Backend::DatabaseErrorCallback( | |
400 int error, | |
401 sql::Statement* stmt) { | |
402 DCHECK(background_task_runner_->RunsTasksOnCurrentThread()); | |
403 | |
404 if (!sql::IsErrorCatastrophic(error)) | |
405 return; | |
406 | |
407 // TODO(shess): Running KillDatabase() multiple times should be | |
408 // safe. | |
409 if (corruption_detected_) | |
410 return; | |
411 | |
412 corruption_detected_ = true; | |
413 | |
414 // TODO(shess): Consider just calling RazeAndClose() immediately. | |
415 // db_ may not be safe to reset at this point, but RazeAndClose() | |
416 // would cause the stack to unwind safely with errors. | |
417 background_task_runner_->PostTask(FROM_HERE, | |
418 base::Bind(&Backend::KillDatabase, this)); | |
419 } | |
420 | |
421 void SQLiteChannelIDStore::Backend::KillDatabase() { | |
422 DCHECK(background_task_runner_->RunsTasksOnCurrentThread()); | |
423 | |
424 if (db_) { | |
425 // This Backend will now be in-memory only. In a future run the database | |
426 // will be recreated. Hopefully things go better then! | |
427 bool success = db_->RazeAndClose(); | |
428 UMA_HISTOGRAM_BOOLEAN("DomainBoundCerts.KillDatabaseResult", success); | |
429 meta_table_.Reset(); | |
430 db_.reset(); | |
431 } | |
432 } | |
433 | |
434 void SQLiteChannelIDStore::Backend::AddChannelID( | |
435 const net::DefaultChannelIDStore::ChannelID& channel_id) { | |
436 BatchOperation(PendingOperation::CHANNEL_ID_ADD, channel_id); | |
437 } | |
438 | |
439 void SQLiteChannelIDStore::Backend::DeleteChannelID( | |
440 const net::DefaultChannelIDStore::ChannelID& channel_id) { | |
441 BatchOperation(PendingOperation::CHANNEL_ID_DELETE, channel_id); | |
442 } | |
443 | |
444 void SQLiteChannelIDStore::Backend::BatchOperation( | |
445 PendingOperation::OperationType op, | |
446 const net::DefaultChannelIDStore::ChannelID& channel_id) { | |
447 // Commit every 30 seconds. | |
448 static const int kCommitIntervalMs = 30 * 1000; | |
449 // Commit right away if we have more than 512 outstanding operations. | |
450 static const size_t kCommitAfterBatchSize = 512; | |
451 | |
452 // We do a full copy of the cert here, and hopefully just here. | |
453 scoped_ptr<PendingOperation> po(new PendingOperation(op, channel_id)); | |
454 | |
455 PendingOperationsList::size_type num_pending; | |
456 { | |
457 base::AutoLock locked(lock_); | |
458 pending_.push_back(po.release()); | |
459 num_pending = ++num_pending_; | |
460 } | |
461 | |
462 if (num_pending == 1) { | |
463 // We've gotten our first entry for this batch, fire off the timer. | |
464 background_task_runner_->PostDelayedTask( | |
465 FROM_HERE, | |
466 base::Bind(&Backend::Commit, this), | |
467 base::TimeDelta::FromMilliseconds(kCommitIntervalMs)); | |
468 } else if (num_pending == kCommitAfterBatchSize) { | |
469 // We've reached a big enough batch, fire off a commit now. | |
470 background_task_runner_->PostTask(FROM_HERE, | |
471 base::Bind(&Backend::Commit, this)); | |
472 } | |
473 } | |
474 | |
475 void SQLiteChannelIDStore::Backend::Commit() { | |
476 DCHECK(background_task_runner_->RunsTasksOnCurrentThread()); | |
477 | |
478 PendingOperationsList ops; | |
479 { | |
480 base::AutoLock locked(lock_); | |
481 pending_.swap(ops); | |
482 num_pending_ = 0; | |
483 } | |
484 | |
485 // Maybe an old timer fired or we are already Close()'ed. | |
486 if (!db_.get() || ops.empty()) | |
487 return; | |
488 | |
489 sql::Statement add_smt(db_->GetCachedStatement(SQL_FROM_HERE, | |
490 "INSERT INTO origin_bound_certs (origin, private_key, cert, cert_type, " | |
491 "expiration_time, creation_time) VALUES (?,?,?,?,?,?)")); | |
492 if (!add_smt.is_valid()) | |
493 return; | |
494 | |
495 sql::Statement del_smt(db_->GetCachedStatement(SQL_FROM_HERE, | |
496 "DELETE FROM origin_bound_certs WHERE origin=?")); | |
497 if (!del_smt.is_valid()) | |
498 return; | |
499 | |
500 sql::Transaction transaction(db_.get()); | |
501 if (!transaction.Begin()) | |
502 return; | |
503 | |
504 for (PendingOperationsList::iterator it = ops.begin(); | |
505 it != ops.end(); ++it) { | |
506 // Free the certs as we commit them to the database. | |
507 scoped_ptr<PendingOperation> po(*it); | |
508 switch (po->op()) { | |
509 case PendingOperation::CHANNEL_ID_ADD: { | |
510 channel_id_origins_.insert(po->channel_id().server_identifier()); | |
511 add_smt.Reset(true); | |
512 add_smt.BindString(0, po->channel_id().server_identifier()); | |
513 const std::string& private_key = po->channel_id().private_key(); | |
514 add_smt.BindBlob(1, private_key.data(), private_key.size()); | |
515 const std::string& cert = po->channel_id().cert(); | |
516 add_smt.BindBlob(2, cert.data(), cert.size()); | |
517 add_smt.BindInt(3, net::CLIENT_CERT_ECDSA_SIGN); | |
518 add_smt.BindInt64(4, | |
519 po->channel_id().expiration_time().ToInternalValue()); | |
520 add_smt.BindInt64(5, | |
521 po->channel_id().creation_time().ToInternalValue()); | |
522 if (!add_smt.Run()) | |
523 NOTREACHED() << "Could not add a server bound cert to the DB."; | |
524 break; | |
525 } | |
526 case PendingOperation::CHANNEL_ID_DELETE: | |
527 channel_id_origins_.erase(po->channel_id().server_identifier()); | |
528 del_smt.Reset(true); | |
529 del_smt.BindString(0, po->channel_id().server_identifier()); | |
530 if (!del_smt.Run()) | |
531 NOTREACHED() << "Could not delete a server bound cert from the DB."; | |
532 break; | |
533 | |
534 default: | |
535 NOTREACHED(); | |
536 break; | |
537 } | |
538 } | |
539 transaction.Commit(); | |
540 } | |
541 | |
542 // Fire off a close message to the background thread. We could still have a | |
543 // pending commit timer that will be holding a reference on us, but if/when | |
544 // this fires we will already have been cleaned up and it will be ignored. | |
545 void SQLiteChannelIDStore::Backend::Close() { | |
546 // Must close the backend on the background thread. | |
547 background_task_runner_->PostTask( | |
548 FROM_HERE, base::Bind(&Backend::InternalBackgroundClose, this)); | |
549 } | |
550 | |
551 void SQLiteChannelIDStore::Backend::InternalBackgroundClose() { | |
552 DCHECK(background_task_runner_->RunsTasksOnCurrentThread()); | |
553 // Commit any pending operations | |
554 Commit(); | |
555 | |
556 if (!force_keep_session_state_ && | |
557 special_storage_policy_.get() && | |
558 special_storage_policy_->HasSessionOnlyOrigins()) { | |
559 DeleteCertificatesOnShutdown(); | |
560 } | |
561 | |
562 db_.reset(); | |
563 } | |
564 | |
565 void SQLiteChannelIDStore::Backend::DeleteCertificatesOnShutdown() { | |
566 DCHECK(background_task_runner_->RunsTasksOnCurrentThread()); | |
567 | |
568 if (!db_.get()) | |
569 return; | |
570 | |
571 if (channel_id_origins_.empty()) | |
572 return; | |
573 | |
574 if (!special_storage_policy_.get()) | |
575 return; | |
576 | |
577 sql::Statement del_smt(db_->GetCachedStatement( | |
578 SQL_FROM_HERE, "DELETE FROM origin_bound_certs WHERE origin=?")); | |
579 if (!del_smt.is_valid()) { | |
580 LOG(WARNING) << "Unable to delete certificates on shutdown."; | |
581 return; | |
582 } | |
583 | |
584 sql::Transaction transaction(db_.get()); | |
585 if (!transaction.Begin()) { | |
586 LOG(WARNING) << "Unable to delete certificates on shutdown."; | |
587 return; | |
588 } | |
589 | |
590 for (std::set<std::string>::iterator it = channel_id_origins_.begin(); | |
591 it != channel_id_origins_.end(); ++it) { | |
592 const GURL url(net::cookie_util::CookieOriginToURL(*it, true)); | |
593 if (!url.is_valid() || !special_storage_policy_->IsStorageSessionOnly(url)) | |
594 continue; | |
595 del_smt.Reset(true); | |
596 del_smt.BindString(0, *it); | |
597 if (!del_smt.Run()) | |
598 NOTREACHED() << "Could not delete a certificate from the DB."; | |
599 } | |
600 | |
601 if (!transaction.Commit()) | |
602 LOG(WARNING) << "Unable to delete certificates on shutdown."; | |
603 } | |
604 | |
605 void SQLiteChannelIDStore::Backend::SetForceKeepSessionState() { | |
606 base::AutoLock locked(lock_); | |
607 force_keep_session_state_ = true; | |
608 } | |
609 | |
610 SQLiteChannelIDStore::SQLiteChannelIDStore( | |
611 const base::FilePath& path, | |
612 const scoped_refptr<base::SequencedTaskRunner>& background_task_runner, | |
613 storage::SpecialStoragePolicy* special_storage_policy) | |
614 : backend_( | |
615 new Backend(path, background_task_runner, special_storage_policy)) { | |
616 } | |
617 | |
618 void SQLiteChannelIDStore::Load( | |
619 const LoadedCallback& loaded_callback) { | |
620 backend_->Load(loaded_callback); | |
621 } | |
622 | |
623 void SQLiteChannelIDStore::AddChannelID( | |
624 const net::DefaultChannelIDStore::ChannelID& channel_id) { | |
625 backend_->AddChannelID(channel_id); | |
626 } | |
627 | |
628 void SQLiteChannelIDStore::DeleteChannelID( | |
629 const net::DefaultChannelIDStore::ChannelID& channel_id) { | |
630 backend_->DeleteChannelID(channel_id); | |
631 } | |
632 | |
633 void SQLiteChannelIDStore::SetForceKeepSessionState() { | |
634 backend_->SetForceKeepSessionState(); | |
635 } | |
636 | |
637 SQLiteChannelIDStore::~SQLiteChannelIDStore() { | |
638 backend_->Close(); | |
639 // We release our reference to the Backend, though it will probably still have | |
640 // a reference if the background thread has not run Close() yet. | |
641 } | |
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