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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
// Copyright 2016 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 "components/ui_devtools/devtools_server.h"
#include <memory>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/format_macros.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/values.h"
#include "net/base/net_errors.h"
#include "net/log/net_log.h"
#include "net/server/http_server_request_info.h"
#include "net/socket/server_socket.h"
#include "net/socket/tcp_server_socket.h"
namespace ui_devtools {
namespace {
const char kChromeDeveloperToolsPrefix[] =
"chrome-devtools://devtools/bundled/inspector.html?ws=";
bool IsDevToolsEnabled(const char* enable_devtools_flag) {
return base::CommandLine::ForCurrentProcess()->HasSwitch(
enable_devtools_flag);
}
int GetUiDevToolsPort(const char* enable_devtools_flag, int default_port) {
DCHECK(IsDevToolsEnabled(enable_devtools_flag));
// This value is duplicated in the chrome://flags description.
int port;
if (!base::StringToInt(
base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
enable_devtools_flag),
&port))
port = default_port;
return port;
}
constexpr net::NetworkTrafficAnnotationTag kUIDevtoolsServer =
net::DefineNetworkTrafficAnnotation("ui_devtools_server", R"(
semantics {
sender: "UI Devtools Server"
description:
"Backend for UI DevTools, to inspect Aura/Views UI."
trigger:
"Run with '--enable-ui-devtools' switch."
data: "Debugging data, including any data on the open pages."
destination: OTHER
destination_other: "The data can be sent to any destination."
}
policy {
cookies_allowed: NO
setting:
"This request cannot be disabled in settings. However it will never "
"be made if user does not run with '--enable-ui-devtools' switch."
policy_exception_justification:
"Not implemented, only used in Devtools and is behind a switch."
})");
} // namespace
UiDevToolsServer* UiDevToolsServer::devtools_server_ = nullptr;
UiDevToolsServer::UiDevToolsServer(
scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner,
const char* enable_devtools_flag,
int default_port)
: io_thread_task_runner_(io_thread_task_runner),
port_(GetUiDevToolsPort(enable_devtools_flag, default_port)) {
DCHECK(!devtools_server_);
main_thread_task_runner_ = base::ThreadTaskRunnerHandle::Get();
devtools_server_ = this;
if (io_thread_task_runner_)
return;
// If io_thread_task_runner not passed in, create an I/O thread
thread_.reset(new base::Thread("UiDevToolsServerThread"));
base::Thread::Options options;
options.message_loop_type = base::MessageLoop::TYPE_IO;
CHECK(thread_->StartWithOptions(options));
io_thread_task_runner_ = thread_->task_runner();
}
UiDevToolsServer::~UiDevToolsServer() {
if (io_thread_task_runner_)
io_thread_task_runner_->DeleteSoon(FROM_HERE, server_.release());
if (thread_ && thread_->IsRunning())
thread_->Stop();
devtools_server_ = nullptr;
}
// static
std::unique_ptr<UiDevToolsServer> UiDevToolsServer::Create(
scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner,
const char* enable_devtools_flag,
int default_port) {
std::unique_ptr<UiDevToolsServer> server;
if (IsDevToolsEnabled(enable_devtools_flag) && !devtools_server_) {
// TODO(mhashmi): Change port if more than one inspectable clients
server.reset(new UiDevToolsServer(io_thread_task_runner,
enable_devtools_flag, default_port));
server->Start("0.0.0.0");
}
return server;
}
// static
std::vector<UiDevToolsServer::NameUrlPair>
UiDevToolsServer::GetClientNamesAndUrls() {
std::vector<NameUrlPair> pairs;
if (!devtools_server_)
return pairs;
for (ClientsList::size_type i = 0; i != devtools_server_->clients_.size();
i++) {
pairs.push_back(std::pair<std::string, std::string>(
devtools_server_->clients_[i]->name(),
base::StringPrintf("%s0.0.0.0:%d/%" PRIuS, kChromeDeveloperToolsPrefix,
devtools_server_->port(), i)));
}
return pairs;
}
void UiDevToolsServer::AttachClient(std::unique_ptr<UiDevToolsClient> client) {
clients_.push_back(std::move(client));
}
void UiDevToolsServer::SendOverWebSocket(int connection_id,
const String& message) {
io_thread_task_runner_->PostTask(
FROM_HERE, base::Bind(&net::HttpServer::SendOverWebSocket,
base::Unretained(server_.get()), connection_id,
message, kUIDevtoolsServer));
}
void UiDevToolsServer::Start(const std::string& address_string) {
io_thread_task_runner_->PostTask(
FROM_HERE, base::Bind(&UiDevToolsServer::StartServer,
base::Unretained(this), address_string));
}
void UiDevToolsServer::StartServer(const std::string& address_string) {
DCHECK(!server_);
std::unique_ptr<net::ServerSocket> socket(
new net::TCPServerSocket(nullptr, net::NetLogSource()));
constexpr int kBacklog = 1;
if (socket->ListenWithAddressAndPort(address_string, port_, kBacklog) !=
net::OK)
return;
server_ = std::make_unique<net::HttpServer>(std::move(socket), this);
}
// HttpServer::Delegate Implementation
void UiDevToolsServer::OnConnect(int connection_id) {
NOTIMPLEMENTED();
}
void UiDevToolsServer::OnHttpRequest(int connection_id,
const net::HttpServerRequestInfo& info) {
NOTIMPLEMENTED();
}
void UiDevToolsServer::OnWebSocketRequest(
int connection_id,
const net::HttpServerRequestInfo& info) {
size_t target_id = 0;
if (info.path.empty() ||
!base::StringToSizeT(info.path.substr(1), &target_id) ||
target_id > clients_.size())
return;
UiDevToolsClient* client = clients_[target_id].get();
// Only one user can inspect the client at a time
if (client->connected())
return;
client->set_connection_id(connection_id);
connections_[connection_id] = client;
io_thread_task_runner_->PostTask(
FROM_HERE, base::Bind(&net::HttpServer::AcceptWebSocket,
base::Unretained(server_.get()), connection_id,
info, kUIDevtoolsServer));
}
void UiDevToolsServer::OnWebSocketMessage(int connection_id,
const std::string& data) {
ConnectionsMap::iterator it = connections_.find(connection_id);
DCHECK(it != connections_.end());
UiDevToolsClient* client = it->second;
DCHECK(client);
main_thread_task_runner_->PostTask(
FROM_HERE,
base::Bind(&UiDevToolsClient::Dispatch, base::Unretained(client), data));
}
void UiDevToolsServer::OnClose(int connection_id) {
ConnectionsMap::iterator it = connections_.find(connection_id);
if (it == connections_.end())
return;
UiDevToolsClient* client = it->second;
DCHECK(client);
main_thread_task_runner_->PostTask(
FROM_HERE,
base::Bind(&UiDevToolsClient::Disconnect, base::Unretained(client)));
connections_.erase(it);
}
} // namespace ui_devtools
|
