content/browser/resource_context_impl.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/resource_context_impl.h"
   6
   7 #include "base/logging.h"
   8 #include "content/browser/fileapi/chrome_blob_storage_context.h"
   9 #include "content/browser/host_zoom_map_impl.h"
  10 #include "content/browser/loader/resource_dispatcher_host_impl.h"
  11 #include "content/browser/loader/resource_request_info_impl.h"
  12 #include "content/browser/streams/stream_context.h"
  13 #include "content/browser/webui/url_data_manager_backend.h"
  14 #include "content/public/browser/browser_context.h"
  15 #include "content/public/browser/browser_thread.h"
  16 #include "net/base/keygen_handler.h"
  17 #include "net/ssl/client_cert_store.h"
  18
  19 using base::UserDataAdapter;
  20
  21 namespace content {
  22
  23 namespace {
  24
  25 // Key names on ResourceContext.
  26 const char kBlobStorageContextKeyName[] = "content_blob_storage_context";
  27 const char kHostZoomMapKeyName[] = "content_host_zoom_map";
  28 const char kStreamContextKeyName[] = "content_stream_context";
  29 const char kURLDataManagerBackendKeyName[] = "url_data_manager_backend";
  30
  31 class NonOwningZoomData : public base::SupportsUserData::Data {
  32  public:
  33   explicit NonOwningZoomData(HostZoomMap* hzm) : host_zoom_map_(hzm) {}
  34   HostZoomMap* host_zoom_map() { return host_zoom_map_; }
  35
  36  private:
  37   HostZoomMap* host_zoom_map_;
  38 };
  39
  40 }  // namespace
  41
  42
  43 ResourceContext::ResourceContext() {
  44   if (ResourceDispatcherHostImpl::Get())
  45     ResourceDispatcherHostImpl::Get()->AddResourceContext(this);
  46 }
  47
  48 ResourceContext::~ResourceContext() {
  49   ResourceDispatcherHostImpl* rdhi = ResourceDispatcherHostImpl::Get();
  50   if (rdhi) {
  51     rdhi->CancelRequestsForContext(this);
  52     rdhi->RemoveResourceContext(this);
  53   }
  54
  55   // In some tests this object is destructed on UI thread.
  56   DetachUserDataThread();
  57 }
  58
  59 std::string ResourceContext::GetMediaDeviceIDSalt() {
  60   return std::string();
  61 }
  62
  63 scoped_ptr<net::ClientCertStore> ResourceContext::CreateClientCertStore() {
  64   return scoped_ptr<net::ClientCertStore>();
  65 }
  66
  67 void ResourceContext::CreateKeygenHandler(
  68     uint32 key_size_in_bits,
  69     const std::string& challenge_string,
  70     const GURL& url,
  71     const base::Callback<void(scoped_ptr<net::KeygenHandler>)>& callback) {
  72   callback.Run(make_scoped_ptr(
  73       new net::KeygenHandler(key_size_in_bits, challenge_string, url)));
  74 }
  75
  76 ChromeBlobStorageContext* GetChromeBlobStorageContextForResourceContext(
  77     ResourceContext* resource_context) {
  78   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  79   return UserDataAdapter<ChromeBlobStorageContext>::Get(
  80       resource_context, kBlobStorageContextKeyName);
  81 }
  82
  83 StreamContext* GetStreamContextForResourceContext(
  84     ResourceContext* resource_context) {
  85   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  86   return UserDataAdapter<StreamContext>::Get(
  87       resource_context, kStreamContextKeyName);
  88 }
  89
  90 HostZoomMap* GetHostZoomMapForResourceContext(ResourceContext* context) {
  91   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  92   return static_cast<NonOwningZoomData*>(
  93       context->GetUserData(kHostZoomMapKeyName))->host_zoom_map();
  94 }
  95
  96 URLDataManagerBackend* GetURLDataManagerForResourceContext(
  97     ResourceContext* context) {
  98   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  99   if (!context->GetUserData(kURLDataManagerBackendKeyName)) {
 100     context->SetUserData(kURLDataManagerBackendKeyName,
 101                          new URLDataManagerBackend());
 102   }
 103   return static_cast<URLDataManagerBackend*>(
 104       context->GetUserData(kURLDataManagerBackendKeyName));
 105 }
 106
 107 void InitializeResourceContext(BrowserContext* browser_context) {
 108   ResourceContext* resource_context = browser_context->GetResourceContext();
 109   DCHECK(!resource_context->GetUserData(kHostZoomMapKeyName));
 110
 111   resource_context->SetUserData(
 112       kBlobStorageContextKeyName,
 113       new UserDataAdapter<ChromeBlobStorageContext>(
 114           ChromeBlobStorageContext::GetFor(browser_context)));
 115
 116   resource_context->SetUserData(
 117       kStreamContextKeyName,
 118       new UserDataAdapter<StreamContext>(
 119           StreamContext::GetFor(browser_context)));
 120
 121   // This object is owned by the BrowserContext and not ResourceContext, so
 122   // store a non-owning pointer here.
 123   resource_context->SetUserData(
 124       kHostZoomMapKeyName,
 125       new NonOwningZoomData(
 126           HostZoomMap::GetForBrowserContext(browser_context)));
 127
 128   resource_context->DetachUserDataThread();
 129 }
 130
 131 }  // namespace content