content/browser/appcache/chrome_appcache_service.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/appcache/chrome_appcache_service.h"
   6
   7 #include "base/files/file_path.h"
   8 #include "base/profiler/scoped_tracker.h"
   9 #include "content/browser/appcache/appcache_storage_impl.h"
  10 #include "content/public/browser/browser_thread.h"
  11 #include "content/public/browser/content_browser_client.h"
  12 #include "content/public/browser/resource_context.h"
  13 #include "net/base/net_errors.h"
  14 #include "net/url_request/url_request_context_getter.h"
  15 #include "storage/browser/quota/quota_manager.h"
  16
  17 namespace content {
  18
  19 ChromeAppCacheService::ChromeAppCacheService(
  20     storage::QuotaManagerProxy* quota_manager_proxy)
  21     : AppCacheServiceImpl(quota_manager_proxy), resource_context_(NULL) {
  22 }
  23
  24 void ChromeAppCacheService::InitializeOnIOThread(
  25     const base::FilePath& cache_path,
  26     ResourceContext* resource_context,
  27     net::URLRequestContextGetter* request_context_getter,
  28     scoped_refptr<storage::SpecialStoragePolicy> special_storage_policy) {
  29   // TODO(pkasting): Remove ScopedTracker below once crbug.com/477117 is fixed.
  30   tracked_objects::ScopedTracker tracking_profile(
  31       FROM_HERE_WITH_EXPLICIT_FUNCTION(
  32           "477117 ChromeAppCacheService::InitializeOnIOThread"));
  33   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  34
  35   cache_path_ = cache_path;
  36   resource_context_ = resource_context;
  37
  38   // The |request_context_getter| can be NULL in some unit tests.
  39   //
  40   // TODO(ajwong): TestProfile is difficult to work with. The
  41   // SafeBrowsing tests require that GetRequestContext return NULL
  42   // so we can't depend on having a non-NULL value here. See crbug/149783.
  43   if (request_context_getter)
  44     set_request_context(request_context_getter->GetURLRequestContext());
  45
  46   // Init our base class.
  47   Initialize(
  48       cache_path_,
  49       BrowserThread::GetMessageLoopProxyForThread(
  50           BrowserThread::FILE_USER_BLOCKING)
  51           .get(),
  52       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE).get());
  53   set_appcache_policy(this);
  54   set_special_storage_policy(special_storage_policy.get());
  55 }
  56
  57 bool ChromeAppCacheService::CanLoadAppCache(const GURL& manifest_url,
  58                                             const GURL& first_party) {
  59   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  60   // We don't prompt for read access.
  61   return GetContentClient()->browser()->AllowAppCache(
  62       manifest_url, first_party, resource_context_);
  63 }
  64
  65 bool ChromeAppCacheService::CanCreateAppCache(
  66     const GURL& manifest_url, const GURL& first_party) {
  67   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  68   return GetContentClient()->browser()->AllowAppCache(
  69       manifest_url, first_party, resource_context_);
  70 }
  71
  72 ChromeAppCacheService::~ChromeAppCacheService() {}
  73
  74 void ChromeAppCacheService::DeleteOnCorrectThread() const {
  75   if (BrowserThread::CurrentlyOn(BrowserThread::IO)) {
  76     delete this;
  77     return;
  78   }
  79   if (BrowserThread::IsMessageLoopValid(BrowserThread::IO)) {
  80     BrowserThread::DeleteSoon(BrowserThread::IO, FROM_HERE, this);
  81     return;
  82   }
  83   // Better to leak than crash on shutdown.
  84 }
  85
  86 }  // namespace content