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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/in_process_webkit/indexed_db_context.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/message_loop_proxy.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "content/browser/browser_thread.h"
#include "content/browser/in_process_webkit/indexed_db_quota_client.h"
#include "content/browser/in_process_webkit/webkit_context.h"
#include "googleurl/src/gurl.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabase.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBFactory.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/quota/quota_manager.h"
#include "webkit/quota/special_storage_policy.h"
using WebKit::WebIDBDatabase;
using WebKit::WebIDBFactory;
using WebKit::WebSecurityOrigin;
namespace {
void ClearLocalState(
const FilePath& indexeddb_path,
scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy) {
file_util::FileEnumerator file_enumerator(
indexeddb_path, false, file_util::FileEnumerator::FILES);
// TODO(pastarmovj): We might need to consider exchanging this loop for
// something more efficient in the future.
for (FilePath file_path = file_enumerator.Next(); !file_path.empty();
file_path = file_enumerator.Next()) {
if (file_path.Extension() != IndexedDBContext::kIndexedDBExtension)
continue;
WebSecurityOrigin origin =
WebSecurityOrigin::createFromDatabaseIdentifier(
webkit_glue::FilePathToWebString(file_path.BaseName()));
if (special_storage_policy->IsStorageProtected(GURL(origin.toString())))
continue;
file_util::Delete(file_path, false);
}
}
} // namespace
const FilePath::CharType IndexedDBContext::kIndexedDBDirectory[] =
FILE_PATH_LITERAL("IndexedDB");
const FilePath::CharType IndexedDBContext::kIndexedDBExtension[] =
FILE_PATH_LITERAL(".leveldb");
IndexedDBContext::IndexedDBContext(
WebKitContext* webkit_context,
quota::SpecialStoragePolicy* special_storage_policy,
quota::QuotaManagerProxy* quota_manager_proxy,
base::MessageLoopProxy* webkit_thread_loop)
: clear_local_state_on_exit_(false),
special_storage_policy_(special_storage_policy),
quota_manager_proxy_(quota_manager_proxy) {
data_path_ = webkit_context->data_path().Append(kIndexedDBDirectory);
if (quota_manager_proxy) {
quota_manager_proxy->RegisterClient(
new IndexedDBQuotaClient(webkit_thread_loop, this));
}
}
IndexedDBContext::~IndexedDBContext() {
WebKit::WebIDBFactory* factory = idb_factory_.release();
if (factory)
BrowserThread::DeleteSoon(BrowserThread::WEBKIT, FROM_HERE, factory);
if (clear_local_state_on_exit_) {
// No WEBKIT thread here means we are running in a unit test where no clean
// up is needed.
BrowserThread::PostTask(BrowserThread::WEBKIT, FROM_HERE,
NewRunnableFunction(&ClearLocalState, data_path_,
special_storage_policy_));
}
}
WebIDBFactory* IndexedDBContext::GetIDBFactory() {
if (!idb_factory_.get())
idb_factory_.reset(WebIDBFactory::create());
DCHECK(idb_factory_.get());
return idb_factory_.get();
}
FilePath IndexedDBContext::GetIndexedDBFilePath(
const string16& origin_id) const {
FilePath::StringType id =
webkit_glue::WebStringToFilePathString(origin_id).append(
FILE_PATH_LITERAL(".indexeddb"));
return data_path_.Append(id.append(kIndexedDBExtension));
}
void IndexedDBContext::DeleteIndexedDBFile(const FilePath& file_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT));
// TODO(pastarmovj): Close all database connections that use that file.
file_util::Delete(file_path, false);
}
void IndexedDBContext::DeleteIndexedDBForOrigin(const string16& origin_id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT));
// TODO(pastarmovj): Remove this check once we are safe to delete any time.
FilePath idb_file = GetIndexedDBFilePath(origin_id);
DCHECK_EQ(idb_file.BaseName().value().substr(0, strlen("chrome-extension")),
FILE_PATH_LITERAL("chrome-extension"));
DeleteIndexedDBFile(GetIndexedDBFilePath(origin_id));
}
bool IndexedDBContext::IsUnlimitedStorageGranted(
const GURL& origin) const {
return special_storage_policy_->IsStorageUnlimited(origin);
}
// TODO(dgrogan): Merge this code with the similar loop in
// BrowsingDataIndexedDBHelperImpl::FetchIndexedDBInfoInWebKitThread.
void IndexedDBContext::GetAllOriginIdentifiers(
std::vector<string16>* origin_ids) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT));
file_util::FileEnumerator file_enumerator(data_path_,
false, file_util::FileEnumerator::DIRECTORIES);
for (FilePath file_path = file_enumerator.Next(); !file_path.empty();
file_path = file_enumerator.Next()) {
if (file_path.Extension() == IndexedDBContext::kIndexedDBExtension) {
WebKit::WebString origin_id_webstring =
webkit_glue::FilePathToWebString(file_path.BaseName());
origin_ids->push_back(origin_id_webstring);
}
}
}
quota::QuotaManagerProxy* IndexedDBContext::quota_manager_proxy() {
return quota_manager_proxy_;
}
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