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:
NonOwningZoomData(HostZoomMap * hzm)33 explicit NonOwningZoomData(HostZoomMap* hzm) : host_zoom_map_(hzm) {}
host_zoom_map()34 HostZoomMap* host_zoom_map() { return host_zoom_map_; }
35
36 private:
37 HostZoomMap* host_zoom_map_;
38 };
39
40 // Used by the default implementation of GetMediaDeviceIDSalt, below.
ReturnEmptySalt()41 std::string ReturnEmptySalt() {
42 return std::string();
43 }
44
45 } // namespace
46
47
ResourceContext()48 ResourceContext::ResourceContext() {
49 if (ResourceDispatcherHostImpl::Get())
50 ResourceDispatcherHostImpl::Get()->AddResourceContext(this);
51 }
52
~ResourceContext()53 ResourceContext::~ResourceContext() {
54 ResourceDispatcherHostImpl* rdhi = ResourceDispatcherHostImpl::Get();
55 if (rdhi) {
56 rdhi->CancelRequestsForContext(this);
57 rdhi->RemoveResourceContext(this);
58 }
59
60 // In some tests this object is destructed on UI thread.
61 DetachUserDataThread();
62 }
63
GetMediaDeviceIDSalt()64 ResourceContext::SaltCallback ResourceContext::GetMediaDeviceIDSalt() {
65 return base::Bind(&ReturnEmptySalt);
66 }
67
CreateClientCertStore()68 scoped_ptr<net::ClientCertStore> ResourceContext::CreateClientCertStore() {
69 return scoped_ptr<net::ClientCertStore>();
70 }
71
CreateKeygenHandler(uint32 key_size_in_bits,const std::string & challenge_string,const GURL & url,const base::Callback<void (scoped_ptr<net::KeygenHandler>)> & callback)72 void ResourceContext::CreateKeygenHandler(
73 uint32 key_size_in_bits,
74 const std::string& challenge_string,
75 const GURL& url,
76 const base::Callback<void(scoped_ptr<net::KeygenHandler>)>& callback) {
77 callback.Run(make_scoped_ptr(
78 new net::KeygenHandler(key_size_in_bits, challenge_string, url)));
79 }
80
GetChromeBlobStorageContextForResourceContext(ResourceContext * resource_context)81 ChromeBlobStorageContext* GetChromeBlobStorageContextForResourceContext(
82 ResourceContext* resource_context) {
83 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
84 return UserDataAdapter<ChromeBlobStorageContext>::Get(
85 resource_context, kBlobStorageContextKeyName);
86 }
87
GetStreamContextForResourceContext(ResourceContext * resource_context)88 StreamContext* GetStreamContextForResourceContext(
89 ResourceContext* resource_context) {
90 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
91 return UserDataAdapter<StreamContext>::Get(
92 resource_context, kStreamContextKeyName);
93 }
94
GetHostZoomMapForResourceContext(ResourceContext * context)95 HostZoomMap* GetHostZoomMapForResourceContext(ResourceContext* context) {
96 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
97 NonOwningZoomData* result = static_cast<NonOwningZoomData*>(
98 context->GetUserData(kHostZoomMapKeyName));
99 if (!result)
100 return NULL;
101 return result->host_zoom_map();
102 }
103
GetURLDataManagerForResourceContext(ResourceContext * context)104 URLDataManagerBackend* GetURLDataManagerForResourceContext(
105 ResourceContext* context) {
106 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
107 if (!context->GetUserData(kURLDataManagerBackendKeyName)) {
108 context->SetUserData(kURLDataManagerBackendKeyName,
109 new URLDataManagerBackend());
110 }
111 return static_cast<URLDataManagerBackend*>(
112 context->GetUserData(kURLDataManagerBackendKeyName));
113 }
114
InitializeResourceContext(BrowserContext * browser_context)115 void InitializeResourceContext(BrowserContext* browser_context) {
116 ResourceContext* resource_context = browser_context->GetResourceContext();
117 DCHECK(!resource_context->GetUserData(kHostZoomMapKeyName));
118
119 resource_context->SetUserData(
120 kBlobStorageContextKeyName,
121 new UserDataAdapter<ChromeBlobStorageContext>(
122 ChromeBlobStorageContext::GetFor(browser_context)));
123
124 resource_context->SetUserData(
125 kStreamContextKeyName,
126 new UserDataAdapter<StreamContext>(
127 StreamContext::GetFor(browser_context)));
128
129 // This object is owned by the BrowserContext and not ResourceContext, so
130 // store a non-owning pointer here.
131 resource_context->SetUserData(
132 kHostZoomMapKeyName,
133 new NonOwningZoomData(
134 HostZoomMap::GetDefaultForBrowserContext(browser_context)));
135
136 resource_context->DetachUserDataThread();
137 }
138
139 } // namespace content
140