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
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
|
// 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/http/http_response_info.h"
#include "base/logging.h"
#include "base/pickle.h"
#include "base/time/time.h"
#include "net/base/auth.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/cert/signed_certificate_timestamp.h"
#include "net/cert/x509_certificate.h"
#include "net/http/http_response_headers.h"
#include "net/ssl/ssl_cert_request_info.h"
using base::Time;
namespace net {
namespace {
X509Certificate::PickleType GetPickleTypeForVersion(int version) {
switch (version) {
case 1:
return X509Certificate::PICKLETYPE_SINGLE_CERTIFICATE;
case 2:
return X509Certificate::PICKLETYPE_CERTIFICATE_CHAIN_V2;
case 3:
default:
return X509Certificate::PICKLETYPE_CERTIFICATE_CHAIN_V3;
}
}
} // namespace
// These values can be bit-wise combined to form the flags field of the
// serialized HttpResponseInfo.
enum {
// The version of the response info used when persisting response info.
RESPONSE_INFO_VERSION = 3,
// The minimum version supported for deserializing response info.
RESPONSE_INFO_MINIMUM_VERSION = 1,
// We reserve up to 8 bits for the version number.
RESPONSE_INFO_VERSION_MASK = 0xFF,
// This bit is set if the response info has a cert at the end.
// Version 1 serialized only the end-entity certificate, while subsequent
// versions include the available certificate chain.
RESPONSE_INFO_HAS_CERT = 1 << 8,
// This bit is set if the response info has a security-bits field (security
// strength, in bits, of the SSL connection) at the end.
RESPONSE_INFO_HAS_SECURITY_BITS = 1 << 9,
// This bit is set if the response info has a cert status at the end.
RESPONSE_INFO_HAS_CERT_STATUS = 1 << 10,
// This bit is set if the response info has vary header data.
RESPONSE_INFO_HAS_VARY_DATA = 1 << 11,
// This bit is set if the request was cancelled before completion.
RESPONSE_INFO_TRUNCATED = 1 << 12,
// This bit is set if the response was received via SPDY.
RESPONSE_INFO_WAS_SPDY = 1 << 13,
// This bit is set if the request has NPN negotiated.
RESPONSE_INFO_WAS_NPN = 1 << 14,
// This bit is set if the request was fetched via an explicit proxy.
RESPONSE_INFO_WAS_PROXY = 1 << 15,
// This bit is set if the response info has an SSL connection status field.
// This contains the ciphersuite used to fetch the resource as well as the
// protocol version, compression method and whether SSLv3 fallback was used.
RESPONSE_INFO_HAS_SSL_CONNECTION_STATUS = 1 << 16,
// This bit is set if the response info has protocol version.
RESPONSE_INFO_HAS_NPN_NEGOTIATED_PROTOCOL = 1 << 17,
// This bit is set if the response info has connection info.
RESPONSE_INFO_HAS_CONNECTION_INFO = 1 << 18,
// This bit is set if the request has http authentication.
RESPONSE_INFO_USE_HTTP_AUTHENTICATION = 1 << 19,
// This bit is set if ssl_info has SCTs.
RESPONSE_INFO_HAS_SIGNED_CERTIFICATE_TIMESTAMPS = 1 << 20,
RESPONSE_INFO_UNUSED_SINCE_PREFETCH = 1 << 21,
// TODO(darin): Add other bits to indicate alternate request methods.
// For now, we don't support storing those.
};
HttpResponseInfo::HttpResponseInfo()
: was_cached(false),
server_data_unavailable(false),
network_accessed(false),
was_fetched_via_spdy(false),
was_npn_negotiated(false),
was_fetched_via_proxy(false),
did_use_http_auth(false),
unused_since_prefetch(false),
connection_info(CONNECTION_INFO_UNKNOWN) {
}
HttpResponseInfo::HttpResponseInfo(const HttpResponseInfo& rhs)
: was_cached(rhs.was_cached),
server_data_unavailable(rhs.server_data_unavailable),
network_accessed(rhs.network_accessed),
was_fetched_via_spdy(rhs.was_fetched_via_spdy),
was_npn_negotiated(rhs.was_npn_negotiated),
was_fetched_via_proxy(rhs.was_fetched_via_proxy),
proxy_server(rhs.proxy_server),
did_use_http_auth(rhs.did_use_http_auth),
unused_since_prefetch(rhs.unused_since_prefetch),
socket_address(rhs.socket_address),
npn_negotiated_protocol(rhs.npn_negotiated_protocol),
connection_info(rhs.connection_info),
request_time(rhs.request_time),
response_time(rhs.response_time),
auth_challenge(rhs.auth_challenge),
cert_request_info(rhs.cert_request_info),
ssl_info(rhs.ssl_info),
headers(rhs.headers),
vary_data(rhs.vary_data),
metadata(rhs.metadata) {
}
HttpResponseInfo::~HttpResponseInfo() {
}
HttpResponseInfo& HttpResponseInfo::operator=(const HttpResponseInfo& rhs) {
was_cached = rhs.was_cached;
server_data_unavailable = rhs.server_data_unavailable;
network_accessed = rhs.network_accessed;
was_fetched_via_spdy = rhs.was_fetched_via_spdy;
proxy_server = rhs.proxy_server;
was_npn_negotiated = rhs.was_npn_negotiated;
was_fetched_via_proxy = rhs.was_fetched_via_proxy;
did_use_http_auth = rhs.did_use_http_auth;
unused_since_prefetch = rhs.unused_since_prefetch;
socket_address = rhs.socket_address;
npn_negotiated_protocol = rhs.npn_negotiated_protocol;
connection_info = rhs.connection_info;
request_time = rhs.request_time;
response_time = rhs.response_time;
auth_challenge = rhs.auth_challenge;
cert_request_info = rhs.cert_request_info;
ssl_info = rhs.ssl_info;
headers = rhs.headers;
vary_data = rhs.vary_data;
metadata = rhs.metadata;
return *this;
}
bool HttpResponseInfo::InitFromPickle(const Pickle& pickle,
bool* response_truncated) {
PickleIterator iter(pickle);
// Read flags and verify version
int flags;
if (!iter.ReadInt(&flags))
return false;
int version = flags & RESPONSE_INFO_VERSION_MASK;
if (version < RESPONSE_INFO_MINIMUM_VERSION ||
version > RESPONSE_INFO_VERSION) {
DLOG(ERROR) << "unexpected response info version: " << version;
return false;
}
// Read request-time
int64 time_val;
if (!iter.ReadInt64(&time_val))
return false;
request_time = Time::FromInternalValue(time_val);
was_cached = true; // Set status to show cache resurrection.
// Read response-time
if (!iter.ReadInt64(&time_val))
return false;
response_time = Time::FromInternalValue(time_val);
// Read response-headers
headers = new HttpResponseHeaders(&iter);
if (headers->response_code() == -1)
return false;
// Read ssl-info
if (flags & RESPONSE_INFO_HAS_CERT) {
X509Certificate::PickleType type = GetPickleTypeForVersion(version);
ssl_info.cert = X509Certificate::CreateFromPickle(&iter, type);
if (!ssl_info.cert.get())
return false;
}
if (flags & RESPONSE_INFO_HAS_CERT_STATUS) {
CertStatus cert_status;
if (!iter.ReadUInt32(&cert_status))
return false;
ssl_info.cert_status = cert_status;
}
if (flags & RESPONSE_INFO_HAS_SECURITY_BITS) {
int security_bits;
if (!iter.ReadInt(&security_bits))
return false;
ssl_info.security_bits = security_bits;
}
if (flags & RESPONSE_INFO_HAS_SSL_CONNECTION_STATUS) {
int connection_status;
if (!iter.ReadInt(&connection_status))
return false;
ssl_info.connection_status = connection_status;
}
if (flags & RESPONSE_INFO_HAS_SIGNED_CERTIFICATE_TIMESTAMPS) {
int num_scts;
if (!iter.ReadInt(&num_scts))
return false;
for (int i = 0; i < num_scts; ++i) {
scoped_refptr<ct::SignedCertificateTimestamp> sct(
ct::SignedCertificateTimestamp::CreateFromPickle(&iter));
uint16 status;
if (!sct.get() || !iter.ReadUInt16(&status))
return false;
ssl_info.signed_certificate_timestamps.push_back(
SignedCertificateTimestampAndStatus(
sct, static_cast<ct::SCTVerifyStatus>(status)));
}
}
// Read vary-data
if (flags & RESPONSE_INFO_HAS_VARY_DATA) {
if (!vary_data.InitFromPickle(&iter))
return false;
}
// Read socket_address.
std::string socket_address_host;
if (iter.ReadString(&socket_address_host)) {
// If the host was written, we always expect the port to follow.
uint16 socket_address_port;
if (!iter.ReadUInt16(&socket_address_port))
return false;
socket_address = HostPortPair(socket_address_host, socket_address_port);
} else if (version > 1) {
// socket_address was not always present in version 1 of the response
// info, so we don't fail if it can't be read.
return false;
}
// Read protocol-version.
if (flags & RESPONSE_INFO_HAS_NPN_NEGOTIATED_PROTOCOL) {
if (!iter.ReadString(&npn_negotiated_protocol))
return false;
}
// Read connection info.
if (flags & RESPONSE_INFO_HAS_CONNECTION_INFO) {
int value;
if (!iter.ReadInt(&value))
return false;
if (value > static_cast<int>(CONNECTION_INFO_UNKNOWN) &&
value < static_cast<int>(NUM_OF_CONNECTION_INFOS)) {
connection_info = static_cast<ConnectionInfo>(value);
}
}
was_fetched_via_spdy = (flags & RESPONSE_INFO_WAS_SPDY) != 0;
was_npn_negotiated = (flags & RESPONSE_INFO_WAS_NPN) != 0;
was_fetched_via_proxy = (flags & RESPONSE_INFO_WAS_PROXY) != 0;
*response_truncated = (flags & RESPONSE_INFO_TRUNCATED) != 0;
did_use_http_auth = (flags & RESPONSE_INFO_USE_HTTP_AUTHENTICATION) != 0;
unused_since_prefetch = (flags & RESPONSE_INFO_UNUSED_SINCE_PREFETCH) != 0;
return true;
}
void HttpResponseInfo::Persist(Pickle* pickle,
bool skip_transient_headers,
bool response_truncated) const {
int flags = RESPONSE_INFO_VERSION;
if (ssl_info.is_valid()) {
flags |= RESPONSE_INFO_HAS_CERT;
flags |= RESPONSE_INFO_HAS_CERT_STATUS;
if (ssl_info.security_bits != -1)
flags |= RESPONSE_INFO_HAS_SECURITY_BITS;
if (ssl_info.connection_status != 0)
flags |= RESPONSE_INFO_HAS_SSL_CONNECTION_STATUS;
}
if (vary_data.is_valid())
flags |= RESPONSE_INFO_HAS_VARY_DATA;
if (response_truncated)
flags |= RESPONSE_INFO_TRUNCATED;
if (was_fetched_via_spdy)
flags |= RESPONSE_INFO_WAS_SPDY;
if (was_npn_negotiated) {
flags |= RESPONSE_INFO_WAS_NPN;
flags |= RESPONSE_INFO_HAS_NPN_NEGOTIATED_PROTOCOL;
}
if (was_fetched_via_proxy)
flags |= RESPONSE_INFO_WAS_PROXY;
if (connection_info != CONNECTION_INFO_UNKNOWN)
flags |= RESPONSE_INFO_HAS_CONNECTION_INFO;
if (did_use_http_auth)
flags |= RESPONSE_INFO_USE_HTTP_AUTHENTICATION;
if (unused_since_prefetch)
flags |= RESPONSE_INFO_UNUSED_SINCE_PREFETCH;
if (!ssl_info.signed_certificate_timestamps.empty())
flags |= RESPONSE_INFO_HAS_SIGNED_CERTIFICATE_TIMESTAMPS;
pickle->WriteInt(flags);
pickle->WriteInt64(request_time.ToInternalValue());
pickle->WriteInt64(response_time.ToInternalValue());
net::HttpResponseHeaders::PersistOptions persist_options =
net::HttpResponseHeaders::PERSIST_RAW;
if (skip_transient_headers) {
persist_options =
net::HttpResponseHeaders::PERSIST_SANS_COOKIES |
net::HttpResponseHeaders::PERSIST_SANS_CHALLENGES |
net::HttpResponseHeaders::PERSIST_SANS_HOP_BY_HOP |
net::HttpResponseHeaders::PERSIST_SANS_NON_CACHEABLE |
net::HttpResponseHeaders::PERSIST_SANS_RANGES |
net::HttpResponseHeaders::PERSIST_SANS_SECURITY_STATE;
}
headers->Persist(pickle, persist_options);
if (ssl_info.is_valid()) {
ssl_info.cert->Persist(pickle);
pickle->WriteUInt32(ssl_info.cert_status);
if (ssl_info.security_bits != -1)
pickle->WriteInt(ssl_info.security_bits);
if (ssl_info.connection_status != 0)
pickle->WriteInt(ssl_info.connection_status);
if (!ssl_info.signed_certificate_timestamps.empty()) {
pickle->WriteInt(ssl_info.signed_certificate_timestamps.size());
for (SignedCertificateTimestampAndStatusList::const_iterator it =
ssl_info.signed_certificate_timestamps.begin(); it !=
ssl_info.signed_certificate_timestamps.end(); ++it) {
it->sct->Persist(pickle);
pickle->WriteUInt16(static_cast<uint16>(it->status));
}
}
}
if (vary_data.is_valid())
vary_data.Persist(pickle);
pickle->WriteString(socket_address.host());
pickle->WriteUInt16(socket_address.port());
if (was_npn_negotiated)
pickle->WriteString(npn_negotiated_protocol);
if (connection_info != CONNECTION_INFO_UNKNOWN)
pickle->WriteInt(static_cast<int>(connection_info));
}
HttpResponseInfo::ConnectionInfo HttpResponseInfo::ConnectionInfoFromNextProto(
NextProto next_proto) {
switch (next_proto) {
case kProtoDeprecatedSPDY2:
return CONNECTION_INFO_DEPRECATED_SPDY2;
case kProtoSPDY3:
case kProtoSPDY31:
return CONNECTION_INFO_SPDY3;
case kProtoSPDY4_14:
return CONNECTION_INFO_HTTP2_14;
case kProtoSPDY4_15:
return CONNECTION_INFO_HTTP2_15;
case kProtoQUIC1SPDY3:
return CONNECTION_INFO_QUIC1_SPDY3;
case kProtoUnknown:
case kProtoHTTP11:
break;
}
NOTREACHED();
return CONNECTION_INFO_UNKNOWN;
}
// static
std::string HttpResponseInfo::ConnectionInfoToString(
ConnectionInfo connection_info) {
switch (connection_info) {
case CONNECTION_INFO_UNKNOWN:
return "unknown";
case CONNECTION_INFO_HTTP1:
return "http/1";
case CONNECTION_INFO_DEPRECATED_SPDY2:
return "spdy/2";
case CONNECTION_INFO_SPDY3:
return "spdy/3";
case CONNECTION_INFO_HTTP2_14:
// For internal consistency, HTTP/2 is named SPDY4 within Chromium.
// This is the HTTP/2 draft-14 identifier.
return "h2-14";
case CONNECTION_INFO_HTTP2_15:
// This is the HTTP/2 draft-15 identifier.
return "h2-15";
case CONNECTION_INFO_QUIC1_SPDY3:
return "quic/1+spdy/3";
case NUM_OF_CONNECTION_INFOS:
break;
}
NOTREACHED();
return "";
}
} // namespace net
|