1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
// 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/extensions/api/streams_private/streams_private_api.h"
#include "base/lazy_instance.h"
#include "base/values.h"
#include "chrome/browser/extensions/extension_tab_util.h"
#include "chrome/common/extensions/api/streams_private.h"
#include "content/public/browser/stream_handle.h"
#include "content/public/browser/stream_info.h"
#include "extensions/browser/event_router.h"
#include "extensions/browser/extension_function_registry.h"
#include "extensions/browser/extension_registry.h"
#include "net/http/http_response_headers.h"
namespace {
void CreateResponseHeadersDictionary(const net::HttpResponseHeaders* headers,
base::DictionaryValue* result) {
if (!headers)
return;
void* iter = NULL;
std::string header_name;
std::string header_value;
while (headers->EnumerateHeaderLines(&iter, &header_name, &header_value)) {
base::Value* existing_value = NULL;
if (result->Get(header_name, &existing_value)) {
base::StringValue* existing_string_value =
static_cast<base::StringValue*>(existing_value);
existing_string_value->GetString()->append(", ").append(header_value);
} else {
result->SetString(header_name, header_value);
}
}
}
} // namespace
namespace extensions {
namespace streams_private = api::streams_private;
// static
StreamsPrivateAPI* StreamsPrivateAPI::Get(content::BrowserContext* context) {
return GetFactoryInstance()->Get(context);
}
StreamsPrivateAPI::StreamsPrivateAPI(content::BrowserContext* context)
: browser_context_(context),
extension_registry_observer_(this),
weak_ptr_factory_(this) {
extension_registry_observer_.Add(ExtensionRegistry::Get(browser_context_));
}
StreamsPrivateAPI::~StreamsPrivateAPI() {
}
void StreamsPrivateAPI::ExecuteMimeTypeHandler(
const std::string& extension_id,
content::WebContents* web_contents,
scoped_ptr<content::StreamInfo> stream,
const std::string& view_id,
int64 expected_content_size,
bool embedded) {
// Create the event's arguments value.
streams_private::StreamInfo info;
info.mime_type = stream->mime_type;
info.original_url = stream->original_url.spec();
info.stream_url = stream->handle->GetURL().spec();
info.tab_id = ExtensionTabUtil::GetTabId(web_contents);
info.embedded = embedded;
if (!view_id.empty()) {
info.view_id.reset(new std::string(view_id));
}
int size = -1;
if (expected_content_size <= INT_MAX)
size = expected_content_size;
info.expected_content_size = size;
CreateResponseHeadersDictionary(stream->response_headers.get(),
&info.response_headers.additional_properties);
scoped_ptr<Event> event(
new Event(streams_private::OnExecuteMimeTypeHandler::kEventName,
streams_private::OnExecuteMimeTypeHandler::Create(info)));
EventRouter::Get(browser_context_)
->DispatchEventToExtension(extension_id, event.Pass());
GURL url = stream->handle->GetURL();
streams_[extension_id][url] = make_linked_ptr(stream->handle.release());
}
void StreamsPrivateAPI::AbortStream(const std::string& extension_id,
const GURL& stream_url,
const base::Closure& callback) {
StreamMap::iterator extension_it = streams_.find(extension_id);
if (extension_it == streams_.end()) {
callback.Run();
return;
}
StreamMap::mapped_type* url_map = &extension_it->second;
StreamMap::mapped_type::iterator url_it = url_map->find(stream_url);
if (url_it == url_map->end()) {
callback.Run();
return;
}
url_it->second->AddCloseListener(callback);
url_map->erase(url_it);
}
void StreamsPrivateAPI::OnExtensionUnloaded(
content::BrowserContext* browser_context,
const Extension* extension,
UnloadedExtensionInfo::Reason reason) {
streams_.erase(extension->id());
}
StreamsPrivateAbortFunction::StreamsPrivateAbortFunction() {
}
ExtensionFunction::ResponseAction StreamsPrivateAbortFunction::Run() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &stream_url_));
StreamsPrivateAPI::Get(browser_context())->AbortStream(
extension_id(), GURL(stream_url_), base::Bind(
&StreamsPrivateAbortFunction::OnClose, this));
return RespondLater();
}
void StreamsPrivateAbortFunction::OnClose() {
DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
Respond(NoArguments());
}
static base::LazyInstance<BrowserContextKeyedAPIFactory<StreamsPrivateAPI> >
g_factory = LAZY_INSTANCE_INITIALIZER;
// static
BrowserContextKeyedAPIFactory<StreamsPrivateAPI>*
StreamsPrivateAPI::GetFactoryInstance() {
return g_factory.Pointer();
}
} // namespace extensions
|
