cef/libcef/dom_storage_context.cc

304 lines
11 KiB
C++
Raw Normal View History

// 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 "dom_storage_context.h"
#include "cef_thread.h"
#include "dom_storage_namespace.h"
#include <algorithm>
#include "base/bind.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "base/string_util.h"
#include "dom_storage_area.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageNamespace.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebString.h"
#include "webkit/database/database_util.h"
#include "webkit/glue/webkit_glue.h"
const FilePath::CharType DOMStorageContext::kLocalStorageDirectory[] =
FILE_PATH_LITERAL("Local Storage");
const FilePath::CharType DOMStorageContext::kLocalStorageExtension[] =
FILE_PATH_LITERAL(".localstorage");
// Use WebStorageNamespace quota sizes as the default.
unsigned int DOMStorageContext::local_storage_quota_ =
WebKit::WebStorageNamespace::m_localStorageQuota;
unsigned int DOMStorageContext::session_storage_quota_ =
WebKit::WebStorageNamespace::m_sessionStorageQuota;
DOMStorageContext::DOMStorageContext(const FilePath& local_storage_path)
: local_storage_path_(local_storage_path),
last_storage_area_id_(0),
last_session_storage_namespace_id_on_ui_thread_(kLocalStorageNamespaceId),
last_session_storage_namespace_id_on_io_thread_(kLocalStorageNamespaceId){
}
DOMStorageContext::~DOMStorageContext() {
for (StorageNamespaceMap::iterator iter(storage_namespace_map_.begin());
iter != storage_namespace_map_.end(); ++iter) {
delete iter->second;
}
}
int64 DOMStorageContext::AllocateStorageAreaId() {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
return ++last_storage_area_id_;
}
int64 DOMStorageContext::AllocateSessionStorageNamespaceId() {
if (CefThread::CurrentlyOn(CefThread::UI))
return ++last_session_storage_namespace_id_on_ui_thread_;
return --last_session_storage_namespace_id_on_io_thread_;
}
int64 DOMStorageContext::CloneSessionStorage(int64 original_id) {
DCHECK(!CefThread::CurrentlyOn(CefThread::UI));
int64 clone_id = AllocateSessionStorageNamespaceId();
CefThread::PostTask(
CefThread::UI, FROM_HERE,
base::Bind(&DOMStorageContext::CompleteCloningSessionStorage, this,
original_id, clone_id));
return clone_id;
}
void DOMStorageContext::RegisterStorageArea(DOMStorageArea* storage_area) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
int64 id = storage_area->id();
DCHECK(!GetStorageArea(id));
storage_area_map_[id] = storage_area;
}
void DOMStorageContext::UnregisterStorageArea(DOMStorageArea* storage_area) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
int64 id = storage_area->id();
DCHECK(GetStorageArea(id));
storage_area_map_.erase(id);
}
DOMStorageArea* DOMStorageContext::GetStorageArea(int64 id) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
StorageAreaMap::iterator iter = storage_area_map_.find(id);
if (iter == storage_area_map_.end())
return NULL;
return iter->second;
}
void DOMStorageContext::DeleteSessionStorageNamespace(int64 namespace_id) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
StorageNamespaceMap::iterator iter =
storage_namespace_map_.find(namespace_id);
if (iter == storage_namespace_map_.end())
return;
DCHECK(iter->second->dom_storage_type() == DOM_STORAGE_SESSION);
delete iter->second;
storage_namespace_map_.erase(iter);
}
void DOMStorageContext::DeleteLocalStorageNamespace() {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
StorageNamespaceMap::iterator iter =
storage_namespace_map_.find(kLocalStorageNamespaceId);
if (iter == storage_namespace_map_.end())
return;
DCHECK(iter->second->dom_storage_type() == DOM_STORAGE_LOCAL);
delete iter->second;
storage_namespace_map_.erase(iter);
}
DOMStorageNamespace* DOMStorageContext::GetStorageNamespace(
int64 id, bool allocation_allowed) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
StorageNamespaceMap::iterator iter = storage_namespace_map_.find(id);
if (iter != storage_namespace_map_.end())
return iter->second;
if (!allocation_allowed)
return NULL;
if (id == kLocalStorageNamespaceId)
return CreateLocalStorage();
return CreateSessionStorage(id);
}
DOMStorageArea* DOMStorageContext::GetStorageArea(int64 namespace_id,
const string16& origin, bool allocation_allowed) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
DOMStorageNamespace* ns =
GetStorageNamespace(namespace_id, allocation_allowed);
if (ns)
return ns->GetStorageArea(origin, allocation_allowed);
return NULL;
}
void DOMStorageContext::PurgeMemory(int64 namespace_id) {
DOMStorageNamespace* ns = GetStorageNamespace(namespace_id, false);
if (ns)
ns->PurgeMemory();
}
void DOMStorageContext::DeleteDataModifiedSince(
const base::Time& cutoff,
const char* url_scheme_to_be_skipped,
const std::vector<string16>& protected_origins) {
// Make sure that we don't delete a database that's currently being accessed
// by unloading all of the databases temporarily.
PurgeMemory(kLocalStorageNamespaceId);
if (local_storage_path_.empty())
return;
file_util::FileEnumerator file_enumerator(
local_storage_path_.Append(kLocalStorageDirectory), false,
file_util::FileEnumerator::FILES);
for (FilePath path = file_enumerator.Next(); !path.value().empty();
path = file_enumerator.Next()) {
WebKit::WebSecurityOrigin web_security_origin =
WebKit::WebSecurityOrigin::createFromDatabaseIdentifier(
webkit_glue::FilePathToWebString(path.BaseName()));
if (EqualsASCII(web_security_origin.protocol(), url_scheme_to_be_skipped))
continue;
std::vector<string16>::const_iterator find_iter =
std::find(protected_origins.begin(), protected_origins.end(),
web_security_origin.databaseIdentifier());
if (find_iter != protected_origins.end())
continue;
file_util::FileEnumerator::FindInfo find_info;
file_enumerator.GetFindInfo(&find_info);
if (file_util::HasFileBeenModifiedSince(find_info, cutoff))
file_util::Delete(path, false);
}
}
void DOMStorageContext::DeleteLocalStorageForOrigin(const string16& origin) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
DOMStorageArea* area =
GetStorageArea(kLocalStorageNamespaceId, origin, false);
if (!area)
return;
// Calling Clear() is necessary to remove the data from the namespace.
area->Clear();
area->PurgeMemory();
if (local_storage_path_.empty())
return;
FilePath file_path = GetLocalStorageFilePath(origin);
if (!file_path.empty())
file_util::Delete(file_path, false);
}
void DOMStorageContext::DeleteAllLocalStorageFiles() {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
// Make sure that we don't delete a database that's currently being accessed
// by unloading all of the databases temporarily.
PurgeMemory(kLocalStorageNamespaceId);
if (local_storage_path_.empty())
return;
file_util::FileEnumerator file_enumerator(
local_storage_path_.Append(kLocalStorageDirectory), false,
file_util::FileEnumerator::FILES);
for (FilePath file_path = file_enumerator.Next(); !file_path.empty();
file_path = file_enumerator.Next()) {
if (file_path.Extension() == kLocalStorageExtension)
file_util::Delete(file_path, false);
}
}
void DOMStorageContext::SetLocalStoragePath(
const FilePath& local_storage_path) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
if ((local_storage_path.empty() && local_storage_path_.empty()) ||
local_storage_path == local_storage_path_)
return;
// Make sure that we don't swap out a database that's currently being accessed
// by unloading all of the databases temporarily.
PurgeMemory(kLocalStorageNamespaceId);
// Delete the current namespace, if any. It will be recreated using the new
// path when needed.
DeleteLocalStorageNamespace();
local_storage_path_ = local_storage_path;
}
DOMStorageNamespace* DOMStorageContext::CreateLocalStorage() {
FilePath dir_path;
if (!local_storage_path_.empty())
dir_path = local_storage_path_.Append(kLocalStorageDirectory);
DOMStorageNamespace* new_namespace =
DOMStorageNamespace::CreateLocalStorageNamespace(this, dir_path);
RegisterStorageNamespace(new_namespace);
return new_namespace;
}
DOMStorageNamespace* DOMStorageContext::CreateSessionStorage(
int64 namespace_id) {
DOMStorageNamespace* new_namespace =
DOMStorageNamespace::CreateSessionStorageNamespace(this, namespace_id);
RegisterStorageNamespace(new_namespace);
return new_namespace;
}
void DOMStorageContext::RegisterStorageNamespace(
DOMStorageNamespace* storage_namespace) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
int64 id = storage_namespace->id();
DCHECK(!GetStorageNamespace(id, false));
storage_namespace_map_[id] = storage_namespace;
}
/* static */
void DOMStorageContext::CompleteCloningSessionStorage(
DOMStorageContext* context, int64 existing_id, int64 clone_id) {
DCHECK(CefThread::CurrentlyOn(CefThread::UI));
DOMStorageNamespace* existing_namespace =
context->GetStorageNamespace(existing_id, false);
// If nothing exists, then there's nothing to clone.
if (existing_namespace)
context->RegisterStorageNamespace(existing_namespace->Copy(clone_id));
}
// static
void DOMStorageContext::ClearLocalState(const FilePath& profile_path,
const char* url_scheme_to_be_skipped) {
file_util::FileEnumerator file_enumerator(profile_path.Append(
kLocalStorageDirectory), false, file_util::FileEnumerator::FILES);
for (FilePath file_path = file_enumerator.Next(); !file_path.empty();
file_path = file_enumerator.Next()) {
if (file_path.Extension() == kLocalStorageExtension) {
WebKit::WebSecurityOrigin web_security_origin =
WebKit::WebSecurityOrigin::createFromDatabaseIdentifier(
webkit_glue::FilePathToWebString(file_path.BaseName()));
if (!EqualsASCII(web_security_origin.protocol(),
url_scheme_to_be_skipped))
file_util::Delete(file_path, false);
}
}
}
FilePath DOMStorageContext::GetLocalStorageFilePath(
const string16& origin) const {
DCHECK(!local_storage_path_.empty());
string16 origin_id =
webkit_database::DatabaseUtil::GetOriginIdentifier(GURL(origin));
FilePath storageDir = local_storage_path_.Append(
DOMStorageContext::kLocalStorageDirectory);
FilePath::StringType id =
webkit_glue::WebStringToFilePathString(origin_id);
return storageDir.Append(id.append(kLocalStorageExtension));
}