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/loader/resource_dispatcher_host_impl.h"
  10 #include "content/browser/loader/resource_request_info_impl.h"
  11 #include "content/browser/streams/stream_context.h"
  12 #include "content/browser/webui/url_data_manager_backend.h"
  13 #include "content/public/browser/browser_context.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "net/base/keygen_handler.h"
  16 #include "net/ssl/client_cert_store.h"
  17
  18 using base::UserDataAdapter;
  19
  20 namespace content {
  21
  22 namespace {
  23
  24 // Key names on ResourceContext.
  25 const char kBlobStorageContextKeyName[] = "content_blob_storage_context";
  26 const char kStreamContextKeyName[] = "content_stream_context";
  27 const char kURLDataManagerBackendKeyName[] = "url_data_manager_backend";
  28
  29 // Used by the default implementation of GetMediaDeviceIDSalt, below.
  30 std::string ReturnEmptySalt() {
  31   return std::string();
  32 }
  33
  34 }  // namespace
  35
  36
  37 ResourceContext::ResourceContext() {
  38   if (ResourceDispatcherHostImpl::Get())
  39     ResourceDispatcherHostImpl::Get()->AddResourceContext(this);
  40 }
  41
  42 ResourceContext::~ResourceContext() {
  43   ResourceDispatcherHostImpl* rdhi = ResourceDispatcherHostImpl::Get();
  44   if (rdhi) {
  45     rdhi->CancelRequestsForContext(this);
  46     rdhi->RemoveResourceContext(this);
  47   }
  48
  49   // In some tests this object is destructed on UI thread.
  50   DetachUserDataThread();
  51 }
  52
  53 ResourceContext::SaltCallback ResourceContext::GetMediaDeviceIDSalt() {
  54   return base::Bind(&ReturnEmptySalt);
  55 }
  56
  57 scoped_ptr<net::ClientCertStore> ResourceContext::CreateClientCertStore() {
  58   return scoped_ptr<net::ClientCertStore>();
  59 }
  60
  61 void ResourceContext::CreateKeygenHandler(
  62     uint32 key_size_in_bits,
  63     const std::string& challenge_string,
  64     const GURL& url,
  65     const base::Callback<void(scoped_ptr<net::KeygenHandler>)>& callback) {
  66   callback.Run(make_scoped_ptr(
  67       new net::KeygenHandler(key_size_in_bits, challenge_string, url)));
  68 }
  69
  70 ChromeBlobStorageContext* GetChromeBlobStorageContextForResourceContext(
  71     const ResourceContext* resource_context) {
  72   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  73   return UserDataAdapter<ChromeBlobStorageContext>::Get(
  74       resource_context, kBlobStorageContextKeyName);
  75 }
  76
  77 StreamContext* GetStreamContextForResourceContext(
  78     const ResourceContext* resource_context) {
  79   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  80   return UserDataAdapter<StreamContext>::Get(
  81       resource_context, kStreamContextKeyName);
  82 }
  83
  84 URLDataManagerBackend* GetURLDataManagerForResourceContext(
  85     ResourceContext* context) {
  86   DCHECK_CURRENTLY_ON(BrowserThread::IO);
  87   if (!context->GetUserData(kURLDataManagerBackendKeyName)) {
  88     context->SetUserData(kURLDataManagerBackendKeyName,
  89                          new URLDataManagerBackend());
  90   }
  91   return static_cast<URLDataManagerBackend*>(
  92       context->GetUserData(kURLDataManagerBackendKeyName));
  93 }
  94
  95 void InitializeResourceContext(BrowserContext* browser_context) {
  96   ResourceContext* resource_context = browser_context->GetResourceContext();
  97
  98   resource_context->SetUserData(
  99       kBlobStorageContextKeyName,
 100       new UserDataAdapter<ChromeBlobStorageContext>(
 101           ChromeBlobStorageContext::GetFor(browser_context)));
 102
 103   resource_context->SetUserData(
 104       kStreamContextKeyName,
 105       new UserDataAdapter<StreamContext>(
 106           StreamContext::GetFor(browser_context)));
 107
 108   resource_context->DetachUserDataThread();
 109 }
 110
 111 }  // namespace content