forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
websocket_basic_stream_adapters.cc
210 lines (170 loc) · 5.65 KB
/
websocket_basic_stream_adapters.cc
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
// Copyright 2018 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 "net/websockets/websocket_basic_stream_adapters.h"
#include <algorithm>
#include <cstring>
#include <utility>
#include "base/bind.h"
#include "base/location.h"
#include "base/single_thread_task_runner.h"
#include "base/threading/thread_task_runner_handle.h"
#include "net/base/io_buffer.h"
#include "net/socket/client_socket_handle.h"
#include "net/socket/socket.h"
#include "net/spdy/spdy_buffer.h"
namespace net {
WebSocketClientSocketHandleAdapter::WebSocketClientSocketHandleAdapter(
std::unique_ptr<ClientSocketHandle> connection)
: connection_(std::move(connection)) {}
WebSocketClientSocketHandleAdapter::~WebSocketClientSocketHandleAdapter() {}
int WebSocketClientSocketHandleAdapter::Read(IOBuffer* buf,
int buf_len,
CompletionOnceCallback callback) {
return connection_->socket()->Read(buf, buf_len, std::move(callback));
}
int WebSocketClientSocketHandleAdapter::Write(
IOBuffer* buf,
int buf_len,
CompletionOnceCallback callback,
const NetworkTrafficAnnotationTag& traffic_annotation) {
return connection_->socket()->Write(buf, buf_len, std::move(callback),
traffic_annotation);
}
void WebSocketClientSocketHandleAdapter::Disconnect() {
connection_->socket()->Disconnect();
}
bool WebSocketClientSocketHandleAdapter::is_initialized() const {
return connection_->is_initialized();
}
WebSocketSpdyStreamAdapter::WebSocketSpdyStreamAdapter(
base::WeakPtr<SpdyStream> stream,
Delegate* delegate,
NetLogWithSource net_log)
: headers_sent_(false),
stream_(stream),
stream_error_(ERR_CONNECTION_CLOSED),
delegate_(delegate),
write_length_(0),
net_log_(net_log) {
stream_->SetDelegate(this);
}
WebSocketSpdyStreamAdapter::~WebSocketSpdyStreamAdapter() {
if (stream_) {
// DetachDelegate() also cancels the stream.
stream_->DetachDelegate();
}
}
void WebSocketSpdyStreamAdapter::DetachDelegate() {
delegate_ = nullptr;
}
int WebSocketSpdyStreamAdapter::Read(IOBuffer* buf,
int buf_len,
CompletionOnceCallback callback) {
DCHECK(!read_callback_);
DCHECK_LT(0, buf_len);
read_buffer_ = buf;
// |read_length_| is size_t and |buf_len| is a non-negative int, therefore
// conversion is always valid.
read_length_ = buf_len;
if (!read_data_.IsEmpty())
return CopySavedReadDataIntoBuffer();
if (!stream_)
return stream_error_;
read_callback_ = std::move(callback);
return ERR_IO_PENDING;
}
int WebSocketSpdyStreamAdapter::Write(
IOBuffer* buf,
int buf_len,
CompletionOnceCallback callback,
const NetworkTrafficAnnotationTag& traffic_annotation) {
CHECK(headers_sent_);
DCHECK(!write_callback_);
DCHECK(callback);
DCHECK_LT(0, buf_len);
if (!stream_)
return stream_error_;
stream_->SendData(buf, buf_len, MORE_DATA_TO_SEND);
write_callback_ = std::move(callback);
write_length_ = buf_len;
return ERR_IO_PENDING;
}
void WebSocketSpdyStreamAdapter::Disconnect() {
if (stream_) {
stream_->DetachDelegate();
stream_ = nullptr;
}
}
bool WebSocketSpdyStreamAdapter::is_initialized() const {
return true;
}
// SpdyStream::Delegate methods.
void WebSocketSpdyStreamAdapter::OnHeadersSent() {
headers_sent_ = true;
if (delegate_)
delegate_->OnHeadersSent();
}
void WebSocketSpdyStreamAdapter::OnHeadersReceived(
const spdy::SpdyHeaderBlock& response_headers,
const spdy::SpdyHeaderBlock* pushed_request_headers) {
if (delegate_)
delegate_->OnHeadersReceived(response_headers);
}
void WebSocketSpdyStreamAdapter::OnDataReceived(
std::unique_ptr<SpdyBuffer> buffer) {
read_data_.Enqueue(std::move(buffer));
if (read_callback_)
std::move(read_callback_).Run(CopySavedReadDataIntoBuffer());
}
void WebSocketSpdyStreamAdapter::OnDataSent() {
DCHECK(write_callback_);
std::move(write_callback_).Run(write_length_);
}
void WebSocketSpdyStreamAdapter::OnTrailers(
const spdy::SpdyHeaderBlock& trailers) {}
void WebSocketSpdyStreamAdapter::OnClose(int status) {
DCHECK_GT(ERR_IO_PENDING, status);
stream_error_ = status;
stream_ = nullptr;
auto self = weak_factory_.GetWeakPtr();
if (read_callback_) {
DCHECK(read_data_.IsEmpty());
// Might destroy |this|.
std::move(read_callback_).Run(status);
if (!self)
return;
}
if (write_callback_) {
// Might destroy |this|.
std::move(write_callback_).Run(status);
if (!self)
return;
}
// Delay calling delegate_->OnClose() until all buffered data are read.
if (read_data_.IsEmpty() && delegate_) {
// Might destroy |this|.
delegate_->OnClose(status);
}
}
NetLogSource WebSocketSpdyStreamAdapter::source_dependency() const {
return net_log_.source();
}
int WebSocketSpdyStreamAdapter::CopySavedReadDataIntoBuffer() {
int rv = read_data_.Dequeue(read_buffer_->data(), read_length_);
// Stream has been destroyed earlier but delegate_->OnClose() call was
// delayed until all buffered data are read. PostTask so that Read() can
// return beforehand.
if (!stream_ && delegate_ && read_data_.IsEmpty()) {
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE,
base::BindOnce(&WebSocketSpdyStreamAdapter::CallDelegateOnClose,
weak_factory_.GetWeakPtr()));
}
return rv;
}
void WebSocketSpdyStreamAdapter::CallDelegateOnClose() {
if (delegate_)
delegate_->OnClose(stream_error_);
}
} // namespace net