forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
spdy_http_utils.cc
172 lines (154 loc) · 5.75 KB
/
spdy_http_utils.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
// 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 "net/spdy/spdy_http_utils.h"
#include <string>
#include <vector>
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_piece.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/time/time.h"
#include "net/base/escape.h"
#include "net/base/load_flags.h"
#include "net/base/url_util.h"
#include "net/http/http_request_headers.h"
#include "net/http/http_request_info.h"
#include "net/http/http_response_headers.h"
#include "net/http/http_response_info.h"
#include "net/http/http_util.h"
namespace net {
namespace {
void AddSpdyHeader(const std::string& name,
const std::string& value,
spdy::SpdyHeaderBlock* headers) {
if (headers->find(name) == headers->end()) {
(*headers)[name] = value;
} else {
std::string joint_value = (*headers)[name].as_string();
joint_value.append(1, '\0');
joint_value.append(value);
(*headers)[name] = joint_value;
}
}
} // namespace
bool SpdyHeadersToHttpResponse(const spdy::SpdyHeaderBlock& headers,
HttpResponseInfo* response) {
// The ":status" header is required.
spdy::SpdyHeaderBlock::const_iterator it =
headers.find(spdy::kHttp2StatusHeader);
if (it == headers.end())
return false;
std::string status = it->second.as_string();
std::string raw_headers("HTTP/1.1 ");
raw_headers.append(status);
raw_headers.push_back('\0');
for (it = headers.begin(); it != headers.end(); ++it) {
// For each value, if the server sends a NUL-separated
// list of values, we separate that back out into
// individual headers for each value in the list.
// e.g.
// Set-Cookie "foo\0bar"
// becomes
// Set-Cookie: foo\0
// Set-Cookie: bar\0
std::string value = it->second.as_string();
size_t start = 0;
size_t end = 0;
do {
end = value.find('\0', start);
std::string tval;
if (end != value.npos)
tval = value.substr(start, (end - start));
else
tval = value.substr(start);
if (it->first[0] == ':')
raw_headers.append(it->first.as_string().substr(1));
else
raw_headers.append(it->first.as_string());
raw_headers.push_back(':');
raw_headers.append(tval);
raw_headers.push_back('\0');
start = end + 1;
} while (end != value.npos);
}
response->headers = new HttpResponseHeaders(raw_headers);
response->was_fetched_via_spdy = true;
return true;
}
void CreateSpdyHeadersFromHttpRequest(const HttpRequestInfo& info,
const HttpRequestHeaders& request_headers,
spdy::SpdyHeaderBlock* headers) {
(*headers)[spdy::kHttp2MethodHeader] = info.method;
if (info.method == "CONNECT") {
(*headers)[spdy::kHttp2AuthorityHeader] = GetHostAndPort(info.url);
} else {
(*headers)[spdy::kHttp2AuthorityHeader] = GetHostAndOptionalPort(info.url);
(*headers)[spdy::kHttp2SchemeHeader] = info.url.scheme();
(*headers)[spdy::kHttp2PathHeader] = info.url.PathForRequest();
}
HttpRequestHeaders::Iterator it(request_headers);
while (it.GetNext()) {
std::string name = base::ToLowerASCII(it.name());
if (name.empty() || name[0] == ':' || name == "connection" ||
name == "proxy-connection" || name == "transfer-encoding" ||
name == "host") {
continue;
}
AddSpdyHeader(name, it.value(), headers);
}
}
void CreateSpdyHeadersFromHttpRequestForWebSocket(
const GURL& url,
const HttpRequestHeaders& request_headers,
spdy::SpdyHeaderBlock* headers) {
(*headers)[spdy::kHttp2MethodHeader] = "CONNECT";
(*headers)[spdy::kHttp2AuthorityHeader] = GetHostAndOptionalPort(url);
(*headers)[spdy::kHttp2SchemeHeader] = "https";
(*headers)[spdy::kHttp2PathHeader] = url.PathForRequest();
(*headers)[spdy::kHttp2ProtocolHeader] = "websocket";
HttpRequestHeaders::Iterator it(request_headers);
while (it.GetNext()) {
std::string name = base::ToLowerASCII(it.name());
if (name.empty() || name[0] == ':' || name == "upgrade" ||
name == "connection" || name == "proxy-connection" ||
name == "transfer-encoding" || name == "host") {
continue;
}
AddSpdyHeader(name, it.value(), headers);
}
}
static_assert(HIGHEST - LOWEST < 4 && HIGHEST - MINIMUM_PRIORITY < 6,
"request priority incompatible with spdy");
spdy::SpdyPriority ConvertRequestPriorityToSpdyPriority(
const RequestPriority priority) {
DCHECK_GE(priority, MINIMUM_PRIORITY);
DCHECK_LE(priority, MAXIMUM_PRIORITY);
return static_cast<spdy::SpdyPriority>(MAXIMUM_PRIORITY - priority +
spdy::kV3HighestPriority);
}
NET_EXPORT_PRIVATE RequestPriority
ConvertSpdyPriorityToRequestPriority(spdy::SpdyPriority priority) {
// Handle invalid values gracefully.
return ((priority - spdy::kV3HighestPriority) >
(MAXIMUM_PRIORITY - MINIMUM_PRIORITY))
? IDLE
: static_cast<RequestPriority>(
MAXIMUM_PRIORITY - (priority - spdy::kV3HighestPriority));
}
NET_EXPORT_PRIVATE void ConvertHeaderBlockToHttpRequestHeaders(
const spdy::SpdyHeaderBlock& spdy_headers,
HttpRequestHeaders* http_headers) {
for (const auto& it : spdy_headers) {
base::StringPiece key = it.first;
if (key[0] == ':') {
key.remove_prefix(1);
}
std::vector<base::StringPiece> values = base::SplitStringPiece(
it.second, "\0", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
for (const auto& value : values) {
http_headers->SetHeader(key, value);
}
}
}
} // namespace net