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// Copyright (c) 2010 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 "chrome/browser/browsing_data_indexed_db_helper.h"
#include "base/file_util.h"
#include "base/message_loop.h"
#include "base/scoped_ptr.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/browser_thread.h"
#include "chrome/browser/in_process_webkit/webkit_context.h"
#include "chrome/browser/profiles/profile.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCString.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"
using WebKit::WebSecurityOrigin;
namespace {
class BrowsingDataIndexedDBHelperImpl : public BrowsingDataIndexedDBHelper {
public:
explicit BrowsingDataIndexedDBHelperImpl(Profile* profile);
virtual void StartFetching(
Callback1<const std::vector<IndexedDBInfo>& >::Type* callback);
virtual void CancelNotification();
virtual void DeleteIndexedDBFile(const FilePath& file_path);
private:
virtual ~BrowsingDataIndexedDBHelperImpl();
// Enumerates all indexed database files in the WEBKIT thread.
void FetchIndexedDBInfoInWebKitThread();
// Notifies the completion callback in the UI thread.
void NotifyInUIThread();
// Delete a single indexed database file in the WEBKIT thread.
void DeleteIndexedDBFileInWebKitThread(const FilePath& file_path);
Profile* profile_;
// This only mutates in the WEBKIT thread.
std::vector<IndexedDBInfo> indexed_db_info_;
// This only mutates on the UI thread.
scoped_ptr<Callback1<const std::vector<IndexedDBInfo>& >::Type >
completion_callback_;
// Indicates whether or not we're currently fetching information:
// it's true when StartFetching() is called in the UI thread, and it's reset
// after we notified the callback in the UI thread.
// This only mutates on the UI thread.
bool is_fetching_;
DISALLOW_COPY_AND_ASSIGN(BrowsingDataIndexedDBHelperImpl);
};
BrowsingDataIndexedDBHelperImpl::BrowsingDataIndexedDBHelperImpl(
Profile* profile)
: profile_(profile),
completion_callback_(NULL),
is_fetching_(false) {
DCHECK(profile_);
}
BrowsingDataIndexedDBHelperImpl::~BrowsingDataIndexedDBHelperImpl() {
}
void BrowsingDataIndexedDBHelperImpl::StartFetching(
Callback1<const std::vector<IndexedDBInfo>& >::Type* callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!is_fetching_);
DCHECK(callback);
is_fetching_ = true;
completion_callback_.reset(callback);
BrowserThread::PostTask(
BrowserThread::WEBKIT, FROM_HERE,
NewRunnableMethod(
this,
&BrowsingDataIndexedDBHelperImpl::FetchIndexedDBInfoInWebKitThread));
}
void BrowsingDataIndexedDBHelperImpl::CancelNotification() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
completion_callback_.reset(NULL);
}
void BrowsingDataIndexedDBHelperImpl::DeleteIndexedDBFile(
const FilePath& file_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
BrowserThread::PostTask(
BrowserThread::WEBKIT, FROM_HERE,
NewRunnableMethod(
this,
&BrowsingDataIndexedDBHelperImpl::
DeleteIndexedDBFileInWebKitThread,
file_path));
}
void BrowsingDataIndexedDBHelperImpl::FetchIndexedDBInfoInWebKitThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT));
file_util::FileEnumerator file_enumerator(
profile_->GetWebKitContext()->data_path().Append(
IndexedDBContext::kIndexedDBDirectory),
false, file_util::FileEnumerator::FILES);
for (FilePath file_path = file_enumerator.Next(); !file_path.empty();
file_path = file_enumerator.Next()) {
if (file_path.Extension() == IndexedDBContext::kIndexedDBExtension) {
WebSecurityOrigin web_security_origin =
WebKit::WebSecurityOrigin::createFromDatabaseIdentifier(
webkit_glue::FilePathToWebString(file_path.BaseName()));
if (EqualsASCII(web_security_origin.protocol(),
chrome::kExtensionScheme)) {
// Extension state is not considered browsing data.
continue;
}
base::PlatformFileInfo file_info;
bool ret = file_util::GetFileInfo(file_path, &file_info);
if (ret) {
indexed_db_info_.push_back(IndexedDBInfo(
web_security_origin.protocol().utf8(),
web_security_origin.host().utf8(),
web_security_origin.port(),
web_security_origin.databaseIdentifier().utf8(),
web_security_origin.toString().utf8(),
file_path,
file_info.size,
file_info.last_modified));
}
}
}
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
NewRunnableMethod(
this, &BrowsingDataIndexedDBHelperImpl::NotifyInUIThread));
}
void BrowsingDataIndexedDBHelperImpl::NotifyInUIThread() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(is_fetching_);
// Note: completion_callback_ mutates only in the UI thread, so it's safe to
// test it here.
if (completion_callback_ != NULL) {
completion_callback_->Run(indexed_db_info_);
completion_callback_.reset();
}
is_fetching_ = false;
}
void BrowsingDataIndexedDBHelperImpl::DeleteIndexedDBFileInWebKitThread(
const FilePath& file_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT));
// TODO(jochen): implement this once it's possible to delete indexed DBs.
}
} // namespace
// static
BrowsingDataIndexedDBHelper* BrowsingDataIndexedDBHelper::Create(
Profile* profile) {
return new BrowsingDataIndexedDBHelperImpl(profile);
}
CannedBrowsingDataIndexedDBHelper::CannedBrowsingDataIndexedDBHelper(
Profile* profile)
: profile_(profile) {
DCHECK(profile);
}
void CannedBrowsingDataIndexedDBHelper::AddIndexedDB(
const GURL& origin, const string16& description) {
WebSecurityOrigin web_security_origin =
WebSecurityOrigin::createFromString(
UTF8ToUTF16(origin.spec()));
std::string security_origin(web_security_origin.toString().utf8());
for (std::vector<IndexedDBInfo>::iterator
indexed_db = indexed_db_info_.begin();
indexed_db != indexed_db_info_.end(); ++indexed_db) {
if (indexed_db->origin == security_origin)
return;
}
indexed_db_info_.push_back(IndexedDBInfo(
web_security_origin.protocol().utf8(),
web_security_origin.host().utf8(),
web_security_origin.port(),
web_security_origin.databaseIdentifier().utf8(),
security_origin,
profile_->GetWebKitContext()->indexed_db_context()->
GetIndexedDBFilePath(web_security_origin.databaseIdentifier()),
0,
base::Time()));
}
void CannedBrowsingDataIndexedDBHelper::Reset() {
indexed_db_info_.clear();
}
bool CannedBrowsingDataIndexedDBHelper::empty() const {
return indexed_db_info_.empty();
}
void CannedBrowsingDataIndexedDBHelper::StartFetching(
Callback1<const std::vector<IndexedDBInfo>& >::Type* callback) {
callback->Run(indexed_db_info_);
delete callback;
}
CannedBrowsingDataIndexedDBHelper::~CannedBrowsingDataIndexedDBHelper() {}
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