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// Copyright (c) 2012 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/extensions/api/declarative/rules_registry_service.h"
#include "base/bind.h"
#include "base/logging.h"
#include "chrome/browser/extensions/api/declarative/initializing_rules_registry.h"
#include "chrome/browser/extensions/api/declarative/rules_registry_storage_delegate.h"
#include "chrome/browser/extensions/api/declarative_webrequest/webrequest_constants.h"
#include "chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.h"
#include "chrome/browser/extensions/api/web_request/web_request_api.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/extensions/extension.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
namespace extensions {
namespace {
// Returns the key to use for storing declarative rules in the state store.
std::string GetDeclarativeRuleStorageKey(const std::string& event_name,
bool incognito) {
if (incognito)
return "declarative_rules.incognito." + event_name;
else
return "declarative_rules." + event_name;
}
// Registers |web_request_rules_registry| on the IO thread.
void RegisterToExtensionWebRequestEventRouterOnIO(
void* profile,
scoped_refptr<WebRequestRulesRegistry> web_request_rules_registry) {
ExtensionWebRequestEventRouter::GetInstance()->RegisterRulesRegistry(
profile, web_request_rules_registry);
}
} // namespace
RulesRegistryService::RulesRegistryService(Profile* profile)
: profile_(profile) {
if (profile) {
registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
content::Source<Profile>(profile->GetOriginalProfile()));
}
}
RulesRegistryService::~RulesRegistryService() {
for (size_t i = 0; i < delegates_.size(); ++i)
delegates_[i]->CleanupOnUIThread();
}
void RulesRegistryService::RegisterDefaultRulesRegistries() {
RulesRegistryStorageDelegate* delegate = new RulesRegistryStorageDelegate();
scoped_refptr<WebRequestRulesRegistry> web_request_rules_registry(
new WebRequestRulesRegistry(profile_, delegate));
delegate->InitOnUIThread(profile_, web_request_rules_registry,
GetDeclarativeRuleStorageKey(
declarative_webrequest_constants::kOnRequest,
profile_->IsOffTheRecord()));
delegates_.push_back(delegate);
RegisterRulesRegistry(declarative_webrequest_constants::kOnRequest,
web_request_rules_registry);
content::BrowserThread::PostTask(
content::BrowserThread::IO, FROM_HERE,
base::Bind(&RegisterToExtensionWebRequestEventRouterOnIO,
profile_, web_request_rules_registry));
}
void RulesRegistryService::Shutdown() {
content::BrowserThread::PostTask(
content::BrowserThread::IO, FROM_HERE,
base::Bind(&RegisterToExtensionWebRequestEventRouterOnIO,
profile_, scoped_refptr<WebRequestRulesRegistry>(NULL)));
}
void RulesRegistryService::RegisterRulesRegistry(
const std::string& event_name,
scoped_refptr<RulesRegistry> rule_registry) {
DCHECK(rule_registries_.find(event_name) == rule_registries_.end());
rule_registries_[event_name] =
make_scoped_refptr(new InitializingRulesRegistry(rule_registry));
}
scoped_refptr<RulesRegistry> RulesRegistryService::GetRulesRegistry(
const std::string& event_name) const {
RulesRegistryMap::const_iterator i = rule_registries_.find(event_name);
if (i == rule_registries_.end())
return scoped_refptr<RulesRegistry>();
return i->second;
}
void RulesRegistryService::SimulateExtensionUnloaded(
const std::string& extension_id) {
OnExtensionUnloaded(extension_id);
}
void RulesRegistryService::OnExtensionUnloaded(
const std::string& extension_id) {
RulesRegistryMap::iterator i;
for (i = rule_registries_.begin(); i != rule_registries_.end(); ++i) {
scoped_refptr<RulesRegistry> registry = i->second;
if (content::BrowserThread::CurrentlyOn(registry->GetOwnerThread())) {
registry->OnExtensionUnloaded(extension_id);
} else {
content::BrowserThread::PostTask(
registry->GetOwnerThread(), FROM_HERE,
base::Bind(&RulesRegistry::OnExtensionUnloaded, registry,
extension_id));
}
}
}
void RulesRegistryService::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
const Extension* extension =
content::Details<UnloadedExtensionInfo>(details)->extension;
OnExtensionUnloaded(extension->id());
break;
}
default:
NOTREACHED();
break;
}
}
} // namespace extensions
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