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
|
// Copyright 2014 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.
#ifndef EXTENSIONS_BROWSER_API_SOCKET_SOCKET_H_
#define EXTENSIONS_BROWSER_API_SOCKET_SOCKET_H_
#include <stdint.h>
#include <memory>
#include <string>
#include <utility>
#include "base/callback.h"
#include "base/containers/queue.h"
#include "base/memory/ref_counted.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "content/public/browser/browser_thread.h"
#include "extensions/browser/api/api_resource.h"
#include "extensions/browser/api/api_resource_manager.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "net/base/completion_once_callback.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_endpoint.h"
#include "net/socket/tcp_client_socket.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
#include "services/network/public/mojom/tcp_socket.mojom.h"
#include "services/network/public/mojom/tls_socket.mojom.h"
#if BUILDFLAG(IS_CHROMEOS_ASH)
#include "extensions/browser/api/socket/app_firewall_hole_manager.h"
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
namespace net {
class AddressList;
class IPEndPoint;
class Socket;
}
namespace extensions {
using SetNoDelayCallback = base::OnceCallback<void(bool)>;
using SetKeepAliveCallback = base::OnceCallback<void(bool)>;
using ReadCompletionCallback = base::OnceCallback<
void(int, scoped_refptr<net::IOBuffer> io_buffer, bool socket_destroying)>;
using RecvFromCompletionCallback =
base::OnceCallback<void(int,
scoped_refptr<net::IOBuffer> io_buffer,
bool socket_destroying,
const std::string&,
uint16_t)>;
using ListenCallback =
base::OnceCallback<void(int, const std::string& error_msg)>;
using AcceptCompletionCallback = base::OnceCallback<void(
int,
mojo::PendingRemote<network::mojom::TCPConnectedSocket>,
const absl::optional<net::IPEndPoint>&,
mojo::ScopedDataPipeConsumerHandle,
mojo::ScopedDataPipeProducerHandle)>;
// A Socket wraps a low-level socket and includes housekeeping information that
// we need to manage it in the context of an extension.
class Socket : public ApiResource {
public:
static const content::BrowserThread::ID kThreadId =
content::BrowserThread::UI;
enum SocketType { TYPE_TCP, TYPE_UDP, TYPE_TLS };
~Socket() override;
// The hostname of the remote host that this socket is connected to. This
// may be the empty string if the client does not intend to ever upgrade the
// socket to TLS, and thusly has not invoked set_hostname().
const std::string& hostname() const { return hostname_; }
// Set the hostname of the remote host that this socket is connected to.
// Note: This may be an IP literal. In the case of IDNs, this should be a
// series of U-LABELs (UTF-8), not A-LABELs. IP literals for IPv6 will be
// unbracketed.
void set_hostname(const std::string& hostname) { hostname_ = hostname; }
#if BUILDFLAG(IS_CHROMEOS_ASH)
void set_firewall_hole(std::unique_ptr<AppFirewallHole> firewall_hole) {
firewall_hole_ = std::move(firewall_hole);
}
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
// Note: |address| contains the resolved IP address, not the hostname of
// the remote endpoint. In order to upgrade this socket to TLS, callers
// must also supply the hostname of the endpoint via set_hostname().
virtual void Connect(const net::AddressList& address,
net::CompletionOnceCallback callback) = 0;
// |socket_destroying| is true if disconnect is due to destruction of the
// socket.
virtual void Disconnect(bool socket_destroying) = 0;
virtual void Bind(const std::string& address,
uint16_t port,
net::CompletionOnceCallback callback) = 0;
// The |callback| will be called with the number of bytes read into the
// buffer, or a negative number if an error occurred.
virtual void Read(int count, ReadCompletionCallback callback) = 0;
// The |callback| will be called with |byte_count| or a negative number if an
// error occurred.
void Write(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
net::CompletionOnceCallback callback);
virtual void RecvFrom(int count, RecvFromCompletionCallback callback) = 0;
virtual void SendTo(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
const net::IPEndPoint& address,
net::CompletionOnceCallback callback) = 0;
virtual void SetKeepAlive(bool enable,
int delay,
SetKeepAliveCallback callback);
virtual void SetNoDelay(bool no_delay, SetNoDelayCallback callback);
virtual void Listen(const std::string& address,
uint16_t port,
int backlog,
ListenCallback callback);
virtual void Accept(AcceptCompletionCallback callback);
virtual bool IsConnected() = 0;
virtual bool GetPeerAddress(net::IPEndPoint* address) = 0;
virtual bool GetLocalAddress(net::IPEndPoint* address) = 0;
virtual SocketType GetSocketType() const = 0;
static bool StringAndPortToIPEndPoint(const std::string& ip_address_str,
uint16_t port,
net::IPEndPoint* ip_end_point);
static void IPEndPointToStringAndPort(const net::IPEndPoint& address,
std::string* ip_address_str,
uint16_t* port);
static net::NetworkTrafficAnnotationTag GetNetworkTrafficAnnotationTag();
protected:
explicit Socket(const std::string& owner_extension_id_);
void WriteData();
virtual int WriteImpl(net::IOBuffer* io_buffer,
int io_buffer_size,
net::CompletionOnceCallback callback) = 0;
std::string hostname_;
bool is_connected_;
private:
friend class ApiResourceManager<Socket>;
static const char* service_name() { return "SocketManager"; }
struct WriteRequest {
WriteRequest(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
net::CompletionOnceCallback callback);
WriteRequest(WriteRequest&& other);
~WriteRequest();
scoped_refptr<net::IOBuffer> io_buffer;
int byte_count;
net::CompletionOnceCallback callback;
int bytes_written;
};
void OnWriteComplete(int result);
base::queue<WriteRequest> write_queue_;
scoped_refptr<net::IOBuffer> io_buffer_write_;
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Represents a hole punched in the system firewall for this socket.
std::unique_ptr<AppFirewallHole> firewall_hole_;
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_API_SOCKET_SOCKET_H_
|
