chrome/browser/profiles/off_the_record_profile_io_data.cc

// 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/profiles/off_the_record_profile_io_data.h"

#include <utility>

#include "base/bind.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/stl_util.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/custom_handlers/protocol_handler_registry.h"
#include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
#include "chrome/browser/io_thread.h"
#include "chrome/browser/net/chrome_network_delegate.h"
#include "chrome/browser/net/chrome_url_request_context_getter.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/url_constants.h"
#include "components/net_log/chrome_net_log.h"
#include "components/prefs/pref_service.h"
#include "components/safe_browsing/common/safe_browsing_prefs.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/cookie_store_factory.h"
#include "content/public/browser/resource_context.h"
#include "extensions/common/constants.h"
#include "extensions/features/features.h"
#include "net/http/http_cache.h"
#include "net/http/http_network_session.h"
#include "net/http/http_server_properties_impl.h"
#include "net/ssl/channel_id_service.h"
#include "net/ssl/default_channel_id_store.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_builder.h"
#include "net/url_request/url_request_job_factory_impl.h"
#include "storage/browser/database/database_tracker.h"

#if BUILDFLAG(ENABLE_EXTENSIONS)
#include "extensions/common/extension.h"
#endif

using content::BrowserThread;

OffTheRecordProfileIOData::Handle::Handle(Profile* profile)
    : io_data_(new OffTheRecordProfileIOData(profile->GetProfileType())),
      profile_(profile),
      initialized_(false) {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  DCHECK(profile);
}

OffTheRecordProfileIOData::Handle::~Handle() {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  io_data_->ShutdownOnUIThread(GetAllContextGetters());
}

content::ResourceContext*
OffTheRecordProfileIOData::Handle::GetResourceContext() const {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  LazyInitialize();
  return GetResourceContextNoInit();
}

content::ResourceContext*
OffTheRecordProfileIOData::Handle::GetResourceContextNoInit() const {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  // Don't call LazyInitialize here, since the resource context is created at
  // the beginning of initalization and is used by some members while they're
  // being initialized (i.e. AppCacheService).
  return io_data_->GetResourceContext();
}

scoped_refptr<ChromeURLRequestContextGetter>
OffTheRecordProfileIOData::Handle::CreateMainRequestContextGetter(
    content::ProtocolHandlerMap* protocol_handlers,
    content::URLRequestInterceptorScopedVector request_interceptors) const {
  // TODO(oshima): Re-enable when ChromeOS only accesses the profile on the UI
  // thread.
#if !defined(OS_CHROMEOS)
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
#endif  // defined(OS_CHROMEOS)
  LazyInitialize();
  DCHECK(!main_request_context_getter_.get());
  main_request_context_getter_ = ChromeURLRequestContextGetter::Create(
      profile_, io_data_, protocol_handlers, std::move(request_interceptors));
  return main_request_context_getter_;
}

scoped_refptr<ChromeURLRequestContextGetter>
OffTheRecordProfileIOData::Handle::GetExtensionsRequestContextGetter() const {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  LazyInitialize();
  if (!extensions_request_context_getter_.get()) {
    extensions_request_context_getter_ =
        ChromeURLRequestContextGetter::CreateForExtensions(profile_, io_data_);
  }
  return extensions_request_context_getter_;
}

scoped_refptr<ChromeURLRequestContextGetter>
OffTheRecordProfileIOData::Handle::GetIsolatedAppRequestContextGetter(
    const base::FilePath& partition_path,
    bool in_memory) const {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  DCHECK(!partition_path.empty());
  LazyInitialize();

  // Keep a map of request context getters, one per requested app ID.
  StoragePartitionDescriptor descriptor(partition_path, in_memory);
  ChromeURLRequestContextGetterMap::iterator iter =
      app_request_context_getter_map_.find(descriptor);
  CHECK(iter != app_request_context_getter_map_.end());
  return iter->second;
}

scoped_refptr<ChromeURLRequestContextGetter>
OffTheRecordProfileIOData::Handle::CreateIsolatedAppRequestContextGetter(
    const base::FilePath& partition_path,
    bool in_memory,
    content::ProtocolHandlerMap* protocol_handlers,
    content::URLRequestInterceptorScopedVector request_interceptors) const {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  DCHECK(!partition_path.empty());
  LazyInitialize();

  // Keep a map of request context getters, one per requested app ID.
  StoragePartitionDescriptor descriptor(partition_path, in_memory);
  DCHECK_EQ(app_request_context_getter_map_.count(descriptor), 0u);

  std::unique_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
      protocol_handler_interceptor(
          ProtocolHandlerRegistryFactory::GetForBrowserContext(profile_)
              ->CreateJobInterceptorFactory());
  ChromeURLRequestContextGetter* context =
      ChromeURLRequestContextGetter::CreateForIsolatedApp(
          profile_, io_data_, descriptor,
          std::move(protocol_handler_interceptor), protocol_handlers,
          std::move(request_interceptors));
  app_request_context_getter_map_[descriptor] = context;

  return context;
}

DevToolsNetworkControllerHandle*
OffTheRecordProfileIOData::Handle::GetDevToolsNetworkControllerHandle() const {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  return io_data_->network_controller_handle();
}

void OffTheRecordProfileIOData::Handle::LazyInitialize() const {
  if (initialized_)
    return;

  // Set initialized_ to true at the beginning in case any of the objects
  // below try to get the ResourceContext pointer.
  initialized_ = true;
  io_data_->safe_browsing_enabled()->Init(prefs::kSafeBrowsingEnabled,
      profile_->GetPrefs());
  io_data_->safe_browsing_enabled()->MoveToThread(
      BrowserThread::GetTaskRunnerForThread(BrowserThread::IO));
  io_data_->InitializeOnUIThread(profile_);
}

std::unique_ptr<ProfileIOData::ChromeURLRequestContextGetterVector>
OffTheRecordProfileIOData::Handle::GetAllContextGetters() {
  std::unique_ptr<ChromeURLRequestContextGetterVector> context_getters(
      new ChromeURLRequestContextGetterVector());
  ChromeURLRequestContextGetterMap::iterator iter =
      app_request_context_getter_map_.begin();
  for (; iter != app_request_context_getter_map_.end(); ++iter)
    context_getters->push_back(iter->second);

  if (extensions_request_context_getter_.get())
    context_getters->push_back(extensions_request_context_getter_);

  if (main_request_context_getter_.get())
    context_getters->push_back(main_request_context_getter_);

  return context_getters;
}

OffTheRecordProfileIOData::OffTheRecordProfileIOData(
    Profile::ProfileType profile_type)
    : ProfileIOData(profile_type) {}

OffTheRecordProfileIOData::~OffTheRecordProfileIOData() {
  DestroyResourceContext();
}

void OffTheRecordProfileIOData::InitializeInternal(
    net::URLRequestContextBuilder* builder,
    ProfileParams* profile_params,
    content::ProtocolHandlerMap* protocol_handlers,
    content::URLRequestInterceptorScopedVector request_interceptors) const {
  // For incognito, we use a non-persistent channel ID store.
  std::unique_ptr<net::ChannelIDService> channel_id_service(
      base::MakeUnique<net::ChannelIDService>(
          new net::DefaultChannelIDStore(nullptr)));

  using content::CookieStoreConfig;
  std::unique_ptr<net::CookieStore> cookie_store(
      CreateCookieStore(CookieStoreConfig(
          base::FilePath(), CookieStoreConfig::EPHEMERAL_SESSION_COOKIES, NULL,
          profile_params->cookie_monster_delegate.get())));
  cookie_store->SetChannelIDServiceID(channel_id_service->GetUniqueID());

  builder->SetCookieAndChannelIdStores(std::move(cookie_store),
                                       std::move(channel_id_service));

  AddProtocolHandlersToBuilder(builder, protocol_handlers);
  SetUpJobFactoryDefaultsForBuilder(
      builder, std::move(request_interceptors),
      std::move(profile_params->protocol_handler_interceptor));
}

void OffTheRecordProfileIOData::OnMainRequestContextCreated(
    ProfileParams* profile_params) const {
#if BUILDFLAG(ENABLE_EXTENSIONS)
  InitializeExtensionsRequestContext(profile_params);
#endif
}

void OffTheRecordProfileIOData::
    InitializeExtensionsRequestContext(ProfileParams* profile_params) const {
  // All we care about for extensions is the cookie store. For incognito, we
  // use a non-persistent cookie store.
  net::URLRequestContext* extensions_context = extensions_request_context();

  content::CookieStoreConfig cookie_config;
  // Enable cookies for chrome-extension URLs.
  cookie_config.cookieable_schemes.push_back(extensions::kExtensionScheme);
  extensions_cookie_store_ = content::CreateCookieStore(cookie_config);
  extensions_context->set_cookie_store(extensions_cookie_store_.get());
}

net::URLRequestContext* OffTheRecordProfileIOData::InitializeAppRequestContext(
    net::URLRequestContext* main_context,
    const StoragePartitionDescriptor& partition_descriptor,
    std::unique_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
        protocol_handler_interceptor,
    content::ProtocolHandlerMap* protocol_handlers,
    content::URLRequestInterceptorScopedVector request_interceptors) const {
  AppRequestContext* context = new AppRequestContext();

  // Copy most state from the main context.
  context->CopyFrom(main_context);

  // Use a separate in-memory cookie store for the app.
  // TODO(creis): We should have a cookie delegate for notifying the cookie
  // extensions API, but we need to update it to understand isolated apps first.
  std::unique_ptr<net::CookieStore> cookie_store =
      content::CreateCookieStore(content::CookieStoreConfig());
  std::unique_ptr<net::ChannelIDService> channel_id_service(
      new net::ChannelIDService(new net::DefaultChannelIDStore(nullptr)));
  cookie_store->SetChannelIDServiceID(channel_id_service->GetUniqueID());
  context->SetCookieStore(std::move(cookie_store));

  // Build a new HttpNetworkSession that uses the new ChannelIDService.
  net::HttpNetworkSession* network_session =
      main_request_context()->http_transaction_factory()->GetSession();
  net::HttpNetworkSession::Context session_context = network_session->context();
  session_context.channel_id_service = channel_id_service.get();
  std::unique_ptr<net::HttpNetworkSession> http_network_session(
      new net::HttpNetworkSession(network_session->params(), session_context));

  // Use a separate in-memory cache for the app.
  std::unique_ptr<net::HttpCache> app_http_cache = CreateMainHttpFactory(
      http_network_session.get(), net::HttpCache::DefaultBackend::InMemory(0));

  context->SetChannelIDService(std::move(channel_id_service));
  context->SetHttpNetworkSession(std::move(http_network_session));
  context->SetHttpTransactionFactory(std::move(app_http_cache));

  std::unique_ptr<net::URLRequestJobFactoryImpl> job_factory(
      new net::URLRequestJobFactoryImpl());
  InstallProtocolHandlers(job_factory.get(), protocol_handlers);
  std::unique_ptr<net::URLRequestJobFactory> top_job_factory;
  top_job_factory = SetUpJobFactoryDefaults(
      std::move(job_factory), std::move(request_interceptors),
      std::move(protocol_handler_interceptor), context->network_delegate(),
      context->host_resolver());
  context->SetJobFactory(std::move(top_job_factory));
  return context;
}

net::URLRequestContext*
OffTheRecordProfileIOData::InitializeMediaRequestContext(
    net::URLRequestContext* original_context,
    const StoragePartitionDescriptor& partition_descriptor,
    const char* name) const {
  NOTREACHED();
  return NULL;
}

net::URLRequestContext*
OffTheRecordProfileIOData::AcquireMediaRequestContext() const {
  NOTREACHED();
  return NULL;
}

net::URLRequestContext*
OffTheRecordProfileIOData::AcquireIsolatedAppRequestContext(
    net::URLRequestContext* main_context,
    const StoragePartitionDescriptor& partition_descriptor,
    std::unique_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
        protocol_handler_interceptor,
    content::ProtocolHandlerMap* protocol_handlers,
    content::URLRequestInterceptorScopedVector request_interceptors) const {
  // We create per-app contexts on demand, unlike the others above.
  net::URLRequestContext* app_request_context = InitializeAppRequestContext(
      main_context, partition_descriptor,
      std::move(protocol_handler_interceptor), protocol_handlers,
      std::move(request_interceptors));
  DCHECK(app_request_context);
  return app_request_context;
}

net::URLRequestContext*
OffTheRecordProfileIOData::AcquireIsolatedMediaRequestContext(
    net::URLRequestContext* app_context,
    const StoragePartitionDescriptor& partition_descriptor) const {
  NOTREACHED();
  return NULL;
}