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
|
// Copyright (c) 2009 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/tools/flip_server/streamer_interface.h"
#include <string>
#include "net/tools/flip_server/balsa_frame.h"
#include "net/tools/flip_server/constants.h"
#include "net/tools/flip_server/flip_config.h"
#include "net/tools/flip_server/sm_connection.h"
namespace net {
std::string StreamerSM::forward_ip_header_;
StreamerSM::StreamerSM(SMConnection* connection,
SMInterface* sm_other_interface,
EpollServer* epoll_server,
FlipAcceptor* acceptor)
: connection_(connection),
sm_other_interface_(sm_other_interface),
epoll_server_(epoll_server),
acceptor_(acceptor),
is_request_(false),
http_framer_(new BalsaFrame) {
VLOG(2) << ACCEPTOR_CLIENT_IDENT << "Creating StreamerSM object";
http_framer_->set_balsa_visitor(this);
http_framer_->set_balsa_headers(&headers_);
http_framer_->set_is_request(false);
}
StreamerSM::~StreamerSM() {
VLOG(1) << ACCEPTOR_CLIENT_IDENT << "Destroying StreamerSM object";
Reset();
delete http_framer_;
}
void StreamerSM::set_is_request() {
is_request_ = true;
http_framer_->set_is_request(true);
}
void StreamerSM::InitSMInterface(SMInterface* sm_other_interface,
int32 server_idx) {
sm_other_interface_ = sm_other_interface;
}
void StreamerSM::InitSMConnection(SMConnectionPoolInterface* connection_pool,
SMInterface* sm_interface,
EpollServer* epoll_server,
int fd,
std::string server_ip,
std::string server_port,
std::string remote_ip,
bool use_ssl) {
VLOG(2) << ACCEPTOR_CLIENT_IDENT << "StreamerSM: Initializing server "
<< "connection.";
connection_->InitSMConnection(connection_pool, sm_interface,
epoll_server, fd, server_ip,
server_port, remote_ip, use_ssl);
}
size_t StreamerSM::ProcessReadInput(const char* data, size_t len) {
// For now we only want to parse http requests. Just stream responses
if (is_request_) {
return http_framer_->ProcessInput(data, len);
} else {
return sm_other_interface_->ProcessWriteInput(data, len);
}
}
size_t StreamerSM::ProcessWriteInput(const char* data, size_t len) {
char * dataPtr = new char[len];
memcpy(dataPtr, data, len);
DataFrame* df = new DataFrame;
df->data = (const char *)dataPtr;
df->size = len;
df->delete_when_done = true;
connection_->EnqueueDataFrame(df);
return len;
}
bool StreamerSM::Error() const {
return false;
}
const char* StreamerSM::ErrorAsString() const {
return "(none)";
}
bool StreamerSM::MessageFullyRead() const {
if (is_request_) {
return http_framer_->MessageFullyRead();
} else {
return false;
}
}
void StreamerSM::Reset() {
VLOG(1) << ACCEPTOR_CLIENT_IDENT << "StreamerSM: Reset";
connection_->Cleanup("Server Reset");
http_framer_->Reset();
}
void StreamerSM::ResetForNewConnection() {
http_framer_->Reset();
sm_other_interface_->Reset();
}
void StreamerSM::Cleanup() {
if (is_request_)
http_framer_->Reset();
}
int StreamerSM::PostAcceptHook() {
if (!sm_other_interface_) {
SMConnection *server_connection =
SMConnection::NewSMConnection(epoll_server_, NULL, NULL,
acceptor_, "server_conn: ");
if (server_connection == NULL) {
LOG(ERROR) << "StreamerSM: Could not create server conenction.";
return 0;
}
VLOG(2) << ACCEPTOR_CLIENT_IDENT << "StreamerSM: Creating new server "
<< "connection.";
sm_other_interface_ = new StreamerSM(server_connection, this,
epoll_server_, acceptor_);
sm_other_interface_->InitSMInterface(this, 0);
}
// The Streamer interface is used to stream HTTPS connections, so we
// will always use the https_server_ip/port here.
sm_other_interface_->InitSMConnection(NULL,
sm_other_interface_,
epoll_server_,
-1,
acceptor_->https_server_ip_,
acceptor_->https_server_port_,
std::string(),
false);
return 1;
}
size_t StreamerSM::SendSynStream(uint32 stream_id,
const BalsaHeaders& headers) {
return 0;
}
size_t StreamerSM::SendSynReply(uint32 stream_id, const BalsaHeaders& headers) {
return 0;
}
void StreamerSM::ProcessBodyInput(const char *input, size_t size) {
VLOG(2) << ACCEPTOR_CLIENT_IDENT
<< "StreamerHttpSM: Process Body Input Data: "
<< "size " << size;
sm_other_interface_->ProcessWriteInput(input, size);
}
void StreamerSM::MessageDone() {
if (acceptor_->flip_handler_type_ == FLIP_HANDLER_PROXY) {
VLOG(2) << ACCEPTOR_CLIENT_IDENT << "StreamerHttpSM: MessageDone.";
// TODO(kelindsay): anything need to be done ehre?
} else {
VLOG(2) << ACCEPTOR_CLIENT_IDENT << "StraemerHttpSM: MessageDone.";
}
}
void StreamerSM::ProcessHeaders(const BalsaHeaders& headers) {
VLOG(2) << ACCEPTOR_CLIENT_IDENT << "HttpStreamerSM: Process Headers";
BalsaHeaders mod_headers;
mod_headers.CopyFrom(headers);
if (forward_ip_header_.length()) {
LOG(INFO) << "Adding forward header: " << forward_ip_header_;
mod_headers.ReplaceOrAppendHeader(forward_ip_header_,
connection_->client_ip());
} else {
LOG(INFO) << "NOT adding forward header.";
}
SimpleBuffer sb;
char* buffer;
int size;
mod_headers.WriteHeaderAndEndingToBuffer(&sb);
sb.GetReadablePtr(&buffer, &size);
sm_other_interface_->ProcessWriteInput(buffer, size);
}
void StreamerSM::HandleHeaderError(BalsaFrame* framer) {
HandleError();
}
void StreamerSM::HandleChunkingError(BalsaFrame* framer) {
HandleError();
}
void StreamerSM::HandleBodyError(BalsaFrame* framer) {
HandleError();
}
void StreamerSM::HandleError() {
VLOG(1) << ACCEPTOR_CLIENT_IDENT << "Error detected";
}
} // namespace net
|
