OLD | NEW |
1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/quic/crypto/cert_compressor.h" | 5 #include "net/quic/crypto/cert_compressor.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
9 #include "net/quic/quic_utils.h" | 9 #include "net/quic/quic_utils.h" |
10 #include "third_party/zlib/zlib.h" | 10 #include "third_party/zlib/zlib.h" |
11 | 11 |
12 using base::StringPiece; | 12 using base::StringPiece; |
13 using std::string; | 13 using std::string; |
14 using std::vector; | 14 using std::vector; |
15 | 15 |
16 namespace net { | 16 namespace net { |
17 | 17 |
18 namespace { | 18 namespace { |
19 | 19 |
20 // kCommonCertSubstrings contains ~1500 bytes of common certificate substrings | 20 // kCommonCertSubstrings contains ~1500 bytes of common certificate substrings |
21 // in order to help zlib. This was generated via a fairly dumb algorithm from | 21 // in order to help zlib. This was generated via a fairly dumb algorithm from |
22 // the Alexa Top 5000 set - we could probably do better. | 22 // the Alexa Top 5000 set - we could probably do better. |
23 static const unsigned char kCommonCertSubstrings[] = { | 23 static const unsigned char kCommonCertSubstrings[] = { |
24 0x04, 0x02, 0x30, 0x00, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, | 24 0x04, 0x02, 0x30, 0x00, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, |
25 0x16, 0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, | 25 0x16, 0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, |
26 0x01, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x02, 0x30, | 26 0x01, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x02, 0x30, |
27 0x5f, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x86, 0xf8, 0x42, 0x04, 0x01, | 27 0x5f, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x86, 0xf8, 0x42, 0x04, 0x01, |
28 0x06, 0x06, 0x0b, 0x60, 0x86, 0x48, 0x01, 0x86, 0xfd, 0x6d, 0x01, 0x07, | 28 0x06, 0x06, 0x0b, 0x60, 0x86, 0x48, 0x01, 0x86, 0xfd, 0x6d, 0x01, 0x07, |
29 0x17, 0x01, 0x30, 0x33, 0x20, 0x45, 0x78, 0x74, 0x65, 0x6e, 0x64, 0x65, | 29 0x17, 0x01, 0x30, 0x33, 0x20, 0x45, 0x78, 0x74, 0x65, 0x6e, 0x64, 0x65, |
30 0x64, 0x20, 0x56, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x69, 0x6f, 0x6e, | 30 0x64, 0x20, 0x56, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x69, 0x6f, 0x6e, |
31 0x20, 0x53, 0x20, 0x4c, 0x69, 0x6d, 0x69, 0x74, 0x65, 0x64, 0x31, 0x34, | 31 0x20, 0x53, 0x20, 0x4c, 0x69, 0x6d, 0x69, 0x74, 0x65, 0x64, 0x31, 0x34, |
32 0x20, 0x53, 0x53, 0x4c, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d, 0x31, | 32 0x20, 0x53, 0x53, 0x4c, 0x20, 0x43, 0x41, 0x30, 0x1e, 0x17, 0x0d, 0x31, |
33 0x32, 0x20, 0x53, 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x53, 0x65, 0x72, | 33 0x32, 0x20, 0x53, 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x53, 0x65, 0x72, |
34 0x76, 0x65, 0x72, 0x20, 0x43, 0x41, 0x30, 0x2d, 0x61, 0x69, 0x61, 0x2e, | 34 0x76, 0x65, 0x72, 0x20, 0x43, 0x41, 0x30, 0x2d, 0x61, 0x69, 0x61, 0x2e, |
35 0x76, 0x65, 0x72, 0x69, 0x73, 0x69, 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, | 35 0x76, 0x65, 0x72, 0x69, 0x73, 0x69, 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, |
36 0x2f, 0x45, 0x2d, 0x63, 0x72, 0x6c, 0x2e, 0x76, 0x65, 0x72, 0x69, 0x73, | 36 0x2f, 0x45, 0x2d, 0x63, 0x72, 0x6c, 0x2e, 0x76, 0x65, 0x72, 0x69, 0x73, |
37 0x69, 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x45, 0x2e, 0x63, 0x65, | 37 0x69, 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x45, 0x2e, 0x63, 0x65, |
38 0x72, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, | 38 0x72, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, |
39 0x01, 0x05, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x4a, 0x2e, 0x63, | 39 0x01, 0x05, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x4a, 0x2e, 0x63, |
40 0x6f, 0x6d, 0x2f, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, | 40 0x6f, 0x6d, 0x2f, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, |
41 0x2f, 0x63, 0x70, 0x73, 0x20, 0x28, 0x63, 0x29, 0x30, 0x30, 0x09, 0x06, | 41 0x2f, 0x63, 0x70, 0x73, 0x20, 0x28, 0x63, 0x29, 0x30, 0x30, 0x09, 0x06, |
42 0x03, 0x55, 0x1d, 0x13, 0x04, 0x02, 0x30, 0x00, 0x30, 0x1d, 0x30, 0x0d, | 42 0x03, 0x55, 0x1d, 0x13, 0x04, 0x02, 0x30, 0x00, 0x30, 0x1d, 0x30, 0x0d, |
43 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, | 43 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, |
44 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x7b, 0x30, 0x1d, 0x06, 0x03, 0x55, | 44 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x7b, 0x30, 0x1d, 0x06, 0x03, 0x55, |
45 0x1d, 0x0e, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, | 45 0x1d, 0x0e, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, |
46 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, | 46 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, |
47 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd2, | 47 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd2, |
48 0x6f, 0x64, 0x6f, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x43, 0x2e, | 48 0x6f, 0x64, 0x6f, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x43, 0x2e, |
49 0x63, 0x72, 0x6c, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, | 49 0x63, 0x72, 0x6c, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, |
50 0x04, 0x14, 0xb4, 0x2e, 0x67, 0x6c, 0x6f, 0x62, 0x61, 0x6c, 0x73, 0x69, | 50 0x04, 0x14, 0xb4, 0x2e, 0x67, 0x6c, 0x6f, 0x62, 0x61, 0x6c, 0x73, 0x69, |
51 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x72, 0x30, 0x0b, 0x06, 0x03, | 51 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x72, 0x30, 0x0b, 0x06, 0x03, |
52 0x55, 0x1d, 0x0f, 0x04, 0x04, 0x03, 0x02, 0x01, 0x30, 0x0d, 0x06, 0x09, | 52 0x55, 0x1d, 0x0f, 0x04, 0x04, 0x03, 0x02, 0x01, 0x30, 0x0d, 0x06, 0x09, |
53 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x30, | 53 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00, 0x30, |
54 0x81, 0xca, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, | 54 0x81, 0xca, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13, |
55 0x02, 0x55, 0x53, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x08, | 55 0x02, 0x55, 0x53, 0x31, 0x10, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x04, 0x08, |
56 0x13, 0x07, 0x41, 0x72, 0x69, 0x7a, 0x6f, 0x6e, 0x61, 0x31, 0x13, 0x30, | 56 0x13, 0x07, 0x41, 0x72, 0x69, 0x7a, 0x6f, 0x6e, 0x61, 0x31, 0x13, 0x30, |
57 0x11, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x0a, 0x53, 0x63, 0x6f, 0x74, | 57 0x11, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x0a, 0x53, 0x63, 0x6f, 0x74, |
58 0x74, 0x73, 0x64, 0x61, 0x6c, 0x65, 0x31, 0x1a, 0x30, 0x18, 0x06, 0x03, | 58 0x74, 0x73, 0x64, 0x61, 0x6c, 0x65, 0x31, 0x1a, 0x30, 0x18, 0x06, 0x03, |
59 0x55, 0x04, 0x0a, 0x13, 0x11, 0x47, 0x6f, 0x44, 0x61, 0x64, 0x64, 0x79, | 59 0x55, 0x04, 0x0a, 0x13, 0x11, 0x47, 0x6f, 0x44, 0x61, 0x64, 0x64, 0x79, |
60 0x2e, 0x63, 0x6f, 0x6d, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31, 0x33, | 60 0x2e, 0x63, 0x6f, 0x6d, 0x2c, 0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31, 0x33, |
61 0x30, 0x31, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x2a, 0x68, 0x74, 0x74, | 61 0x30, 0x31, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x2a, 0x68, 0x74, 0x74, |
62 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, | 62 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, |
63 0x61, 0x74, 0x65, 0x73, 0x2e, 0x67, 0x6f, 0x64, 0x61, 0x64, 0x64, 0x79, | 63 0x61, 0x74, 0x65, 0x73, 0x2e, 0x67, 0x6f, 0x64, 0x61, 0x64, 0x64, 0x79, |
64 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x72, 0x65, 0x70, 0x6f, 0x73, 0x69, 0x74, | 64 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x72, 0x65, 0x70, 0x6f, 0x73, 0x69, 0x74, |
65 0x6f, 0x72, 0x79, 0x31, 0x30, 0x30, 0x2e, 0x06, 0x03, 0x55, 0x04, 0x03, | 65 0x6f, 0x72, 0x79, 0x31, 0x30, 0x30, 0x2e, 0x06, 0x03, 0x55, 0x04, 0x03, |
66 0x13, 0x27, 0x47, 0x6f, 0x20, 0x44, 0x61, 0x64, 0x64, 0x79, 0x20, 0x53, | 66 0x13, 0x27, 0x47, 0x6f, 0x20, 0x44, 0x61, 0x64, 0x64, 0x79, 0x20, 0x53, |
67 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, | 67 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, |
68 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x41, 0x75, 0x74, 0x68, | 68 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x41, 0x75, 0x74, 0x68, |
69 0x6f, 0x72, 0x69, 0x74, 0x79, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55, | 69 0x6f, 0x72, 0x69, 0x74, 0x79, 0x31, 0x11, 0x30, 0x0f, 0x06, 0x03, 0x55, |
70 0x04, 0x05, 0x13, 0x08, 0x30, 0x37, 0x39, 0x36, 0x39, 0x32, 0x38, 0x37, | 70 0x04, 0x05, 0x13, 0x08, 0x30, 0x37, 0x39, 0x36, 0x39, 0x32, 0x38, 0x37, |
71 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x31, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, | 71 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x31, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, |
72 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x05, 0xa0, 0x30, 0x0c, | 72 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04, 0x03, 0x02, 0x05, 0xa0, 0x30, 0x0c, |
73 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x02, 0x30, 0x00, | 73 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x02, 0x30, 0x00, |
74 0x30, 0x1d, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, | 74 0x30, 0x1d, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, |
75 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0x00, 0x30, 0x1d, 0x06, 0x03, 0x55, | 75 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0x00, 0x30, 0x1d, 0x06, 0x03, 0x55, |
76 0x1d, 0x25, 0x04, 0x16, 0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, | 76 0x1d, 0x25, 0x04, 0x16, 0x30, 0x14, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, |
77 0x05, 0x07, 0x03, 0x01, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, | 77 0x05, 0x07, 0x03, 0x01, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, |
78 0x03, 0x02, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, | 78 0x03, 0x02, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, |
79 0x04, 0x04, 0x03, 0x02, 0x05, 0xa0, 0x30, 0x33, 0x06, 0x03, 0x55, 0x1d, | 79 0x04, 0x04, 0x03, 0x02, 0x05, 0xa0, 0x30, 0x33, 0x06, 0x03, 0x55, 0x1d, |
80 0x1f, 0x04, 0x2c, 0x30, 0x2a, 0x30, 0x28, 0xa0, 0x26, 0xa0, 0x24, 0x86, | 80 0x1f, 0x04, 0x2c, 0x30, 0x2a, 0x30, 0x28, 0xa0, 0x26, 0xa0, 0x24, 0x86, |
81 0x22, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x72, 0x6c, 0x2e, | 81 0x22, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x72, 0x6c, 0x2e, |
82 0x67, 0x6f, 0x64, 0x61, 0x64, 0x64, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, | 82 0x67, 0x6f, 0x64, 0x61, 0x64, 0x64, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, |
83 0x67, 0x64, 0x73, 0x31, 0x2d, 0x32, 0x30, 0x2a, 0x30, 0x28, 0x06, 0x08, | 83 0x67, 0x64, 0x73, 0x31, 0x2d, 0x32, 0x30, 0x2a, 0x30, 0x28, 0x06, 0x08, |
84 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x02, 0x01, 0x16, 0x1c, 0x68, 0x74, | 84 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x02, 0x01, 0x16, 0x1c, 0x68, 0x74, |
85 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x76, 0x65, | 85 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x76, 0x65, |
86 0x72, 0x69, 0x73, 0x69, 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, | 86 0x72, 0x69, 0x73, 0x69, 0x67, 0x6e, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, |
87 0x70, 0x73, 0x30, 0x34, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5a, 0x17, | 87 0x70, 0x73, 0x30, 0x34, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x5a, 0x17, |
88 0x0d, 0x31, 0x33, 0x30, 0x35, 0x30, 0x39, 0x06, 0x08, 0x2b, 0x06, 0x01, | 88 0x0d, 0x31, 0x33, 0x30, 0x35, 0x30, 0x39, 0x06, 0x08, 0x2b, 0x06, 0x01, |
89 0x05, 0x05, 0x07, 0x30, 0x02, 0x86, 0x2d, 0x68, 0x74, 0x74, 0x70, 0x3a, | 89 0x05, 0x05, 0x07, 0x30, 0x02, 0x86, 0x2d, 0x68, 0x74, 0x74, 0x70, 0x3a, |
90 0x2f, 0x2f, 0x73, 0x30, 0x39, 0x30, 0x37, 0x06, 0x08, 0x2b, 0x06, 0x01, | 90 0x2f, 0x2f, 0x73, 0x30, 0x39, 0x30, 0x37, 0x06, 0x08, 0x2b, 0x06, 0x01, |
91 0x05, 0x05, 0x07, 0x02, 0x30, 0x44, 0x06, 0x03, 0x55, 0x1d, 0x20, 0x04, | 91 0x05, 0x05, 0x07, 0x02, 0x30, 0x44, 0x06, 0x03, 0x55, 0x1d, 0x20, 0x04, |
92 0x3d, 0x30, 0x3b, 0x30, 0x39, 0x06, 0x0b, 0x60, 0x86, 0x48, 0x01, 0x86, | 92 0x3d, 0x30, 0x3b, 0x30, 0x39, 0x06, 0x0b, 0x60, 0x86, 0x48, 0x01, 0x86, |
93 0xf8, 0x45, 0x01, 0x07, 0x17, 0x06, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, | 93 0xf8, 0x45, 0x01, 0x07, 0x17, 0x06, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, |
94 0x55, 0x04, 0x06, 0x13, 0x02, 0x47, 0x42, 0x31, 0x1b, 0x53, 0x31, 0x17, | 94 0x55, 0x04, 0x06, 0x13, 0x02, 0x47, 0x42, 0x31, 0x1b, 0x53, 0x31, 0x17, |
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144 0x80, 0x14, 0xfd, 0xac, 0x61, 0x32, 0x93, 0x6c, 0x45, 0xd6, 0xe2, 0xee, | 144 0x80, 0x14, 0xfd, 0xac, 0x61, 0x32, 0x93, 0x6c, 0x45, 0xd6, 0xe2, 0xee, |
145 0x85, 0x5f, 0x9a, 0xba, 0xe7, 0x76, 0x99, 0x68, 0xcc, 0xe7, 0x30, 0x27, | 145 0x85, 0x5f, 0x9a, 0xba, 0xe7, 0x76, 0x99, 0x68, 0xcc, 0xe7, 0x30, 0x27, |
146 0x86, 0x29, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x86, 0x30, | 146 0x86, 0x29, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x63, 0x86, 0x30, |
147 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x73, | 147 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x73, |
148 }; | 148 }; |
149 | 149 |
150 // CertEntry represents a certificate in compressed form. Each entry is one of | 150 // CertEntry represents a certificate in compressed form. Each entry is one of |
151 // the three types enumerated in |Type|. | 151 // the three types enumerated in |Type|. |
152 struct CertEntry { | 152 struct CertEntry { |
153 public: | 153 public: |
154 enum Type { | 154 enum Type { |
155 // Type 0 is reserved to mean "end of list" in the wire format. | 155 // Type 0 is reserved to mean "end of list" in the wire format. |
156 | 156 |
157 // COMPRESSED means that the certificate is included in the trailing zlib | 157 // COMPRESSED means that the certificate is included in the trailing zlib |
(...skipping 21 matching lines...) Expand all Loading... |
179 StringPiece client_common_set_hashes, | 179 StringPiece client_common_set_hashes, |
180 StringPiece client_cached_cert_hashes, | 180 StringPiece client_cached_cert_hashes, |
181 const CommonCertSets* common_sets) { | 181 const CommonCertSets* common_sets) { |
182 vector<CertEntry> entries; | 182 vector<CertEntry> entries; |
183 entries.reserve(certs.size()); | 183 entries.reserve(certs.size()); |
184 | 184 |
185 const bool cached_valid = | 185 const bool cached_valid = |
186 client_cached_cert_hashes.size() % sizeof(uint64) == 0 && | 186 client_cached_cert_hashes.size() % sizeof(uint64) == 0 && |
187 !client_cached_cert_hashes.empty(); | 187 !client_cached_cert_hashes.empty(); |
188 | 188 |
189 for (vector<string>::const_iterator i = certs.begin(); | 189 for (vector<string>::const_iterator i = certs.begin(); i != certs.end(); |
190 i != certs.end(); ++i) { | 190 ++i) { |
191 CertEntry entry; | 191 CertEntry entry; |
192 | 192 |
193 if (cached_valid) { | 193 if (cached_valid) { |
194 bool cached = false; | 194 bool cached = false; |
195 | 195 |
196 uint64 hash = QuicUtils::FNV1a_64_Hash(i->data(), i->size()); | 196 uint64 hash = QuicUtils::FNV1a_64_Hash(i->data(), i->size()); |
197 // This assumes that the machine is little-endian. | 197 // This assumes that the machine is little-endian. |
198 for (size_t i = 0; i < client_cached_cert_hashes.size(); | 198 for (size_t i = 0; i < client_cached_cert_hashes.size(); |
199 i += sizeof(uint64)) { | 199 i += sizeof(uint64)) { |
200 uint64 cached_hash; | 200 uint64 cached_hash; |
201 memcpy(&cached_hash, client_cached_cert_hashes.data() + i, | 201 memcpy( |
202 sizeof(uint64)); | 202 &cached_hash, client_cached_cert_hashes.data() + i, sizeof(uint64)); |
203 if (hash != cached_hash) { | 203 if (hash != cached_hash) { |
204 continue; | 204 continue; |
205 } | 205 } |
206 | 206 |
207 entry.type = CertEntry::CACHED; | 207 entry.type = CertEntry::CACHED; |
208 entry.hash = hash; | 208 entry.hash = hash; |
209 entries.push_back(entry); | 209 entries.push_back(entry); |
210 cached = true; | 210 cached = true; |
211 break; | 211 break; |
212 } | 212 } |
213 | 213 |
214 if (cached) { | 214 if (cached) { |
215 continue; | 215 continue; |
216 } | 216 } |
217 } | 217 } |
218 | 218 |
219 if (common_sets && common_sets->MatchCert(*i, client_common_set_hashes, | 219 if (common_sets && |
220 &entry.set_hash, &entry.index)) { | 220 common_sets->MatchCert( |
| 221 *i, client_common_set_hashes, &entry.set_hash, &entry.index)) { |
221 entry.type = CertEntry::COMMON; | 222 entry.type = CertEntry::COMMON; |
222 entries.push_back(entry); | 223 entries.push_back(entry); |
223 continue; | 224 continue; |
224 } | 225 } |
225 | 226 |
226 entry.type = CertEntry::COMPRESSED; | 227 entry.type = CertEntry::COMPRESSED; |
227 entries.push_back(entry); | 228 entries.push_back(entry); |
228 } | 229 } |
229 | 230 |
230 return entries; | 231 return entries; |
231 } | 232 } |
232 | 233 |
233 // CertEntriesSize returns the size, in bytes, of the serialised form of | 234 // CertEntriesSize returns the size, in bytes, of the serialised form of |
234 // |entries|. | 235 // |entries|. |
235 size_t CertEntriesSize(const vector<CertEntry>& entries) { | 236 size_t CertEntriesSize(const vector<CertEntry>& entries) { |
236 size_t entries_size = 0; | 237 size_t entries_size = 0; |
237 | 238 |
238 for (vector<CertEntry>::const_iterator i = entries.begin(); | 239 for (vector<CertEntry>::const_iterator i = entries.begin(); |
239 i != entries.end(); ++i) { | 240 i != entries.end(); |
| 241 ++i) { |
240 entries_size++; | 242 entries_size++; |
241 switch (i->type) { | 243 switch (i->type) { |
242 case CertEntry::COMPRESSED: | 244 case CertEntry::COMPRESSED: |
243 break; | 245 break; |
244 case CertEntry::CACHED: | 246 case CertEntry::CACHED: |
245 entries_size += sizeof(uint64); | 247 entries_size += sizeof(uint64); |
246 break; | 248 break; |
247 case CertEntry::COMMON: | 249 case CertEntry::COMMON: |
248 entries_size += sizeof(uint64) + sizeof(uint32); | 250 entries_size += sizeof(uint64) + sizeof(uint32); |
249 break; | 251 break; |
250 } | 252 } |
251 } | 253 } |
252 | 254 |
253 entries_size++; // for end marker | 255 entries_size++; // for end marker |
254 | 256 |
255 return entries_size; | 257 return entries_size; |
256 } | 258 } |
257 | 259 |
258 // SerializeCertEntries serialises |entries| to |out|, which must have enough | 260 // SerializeCertEntries serialises |entries| to |out|, which must have enough |
259 // space to contain them. | 261 // space to contain them. |
260 void SerializeCertEntries(uint8* out, const vector<CertEntry>& entries) { | 262 void SerializeCertEntries(uint8* out, const vector<CertEntry>& entries) { |
261 for (vector<CertEntry>::const_iterator i = entries.begin(); | 263 for (vector<CertEntry>::const_iterator i = entries.begin(); |
262 i != entries.end(); ++i) { | 264 i != entries.end(); |
| 265 ++i) { |
263 *out++ = i->type; | 266 *out++ = i->type; |
264 switch (i->type) { | 267 switch (i->type) { |
265 case CertEntry::COMPRESSED: | 268 case CertEntry::COMPRESSED: |
266 break; | 269 break; |
267 case CertEntry::CACHED: | 270 case CertEntry::CACHED: |
268 memcpy(out, &i->hash, sizeof(i->hash)); | 271 memcpy(out, &i->hash, sizeof(i->hash)); |
269 out += sizeof(uint64); | 272 out += sizeof(uint64); |
270 break; | 273 break; |
271 case CertEntry::COMMON: | 274 case CertEntry::COMMON: |
272 // Assumes a little-endian machine. | 275 // Assumes a little-endian machine. |
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
314 DCHECK_EQ(zlib_dict.size(), zlib_dict_size); | 317 DCHECK_EQ(zlib_dict.size(), zlib_dict_size); |
315 | 318 |
316 return zlib_dict; | 319 return zlib_dict; |
317 } | 320 } |
318 | 321 |
319 // HashCerts returns the FNV-1a hashes of |certs|. | 322 // HashCerts returns the FNV-1a hashes of |certs|. |
320 vector<uint64> HashCerts(const vector<string>& certs) { | 323 vector<uint64> HashCerts(const vector<string>& certs) { |
321 vector<uint64> ret; | 324 vector<uint64> ret; |
322 ret.reserve(certs.size()); | 325 ret.reserve(certs.size()); |
323 | 326 |
324 for (vector<string>::const_iterator i = certs.begin(); | 327 for (vector<string>::const_iterator i = certs.begin(); i != certs.end(); |
325 i != certs.end(); ++i) { | 328 ++i) { |
326 ret.push_back(QuicUtils::FNV1a_64_Hash(i->data(), i->size())); | 329 ret.push_back(QuicUtils::FNV1a_64_Hash(i->data(), i->size())); |
327 } | 330 } |
328 | 331 |
329 return ret; | 332 return ret; |
330 } | 333 } |
331 | 334 |
332 // ParseEntries parses the serialised form of a vector of CertEntries from | 335 // ParseEntries parses the serialised form of a vector of CertEntries from |
333 // |in_out| and writes them to |out_entries|. CACHED and COMMON entries are | 336 // |in_out| and writes them to |out_entries|. CACHED and COMMON entries are |
334 // resolved using |cached_certs| and |common_sets| and written to |out_certs|. | 337 // resolved using |cached_certs| and |common_sets| and written to |out_certs|. |
335 // |in_out| is updated to contain the trailing data. | 338 // |in_out| is updated to contain the trailing data. |
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422 DEFLATE, | 425 DEFLATE, |
423 }; | 426 }; |
424 | 427 |
425 explicit ScopedZLib(Type type) : z_(NULL), type_(type) {} | 428 explicit ScopedZLib(Type type) : z_(NULL), type_(type) {} |
426 | 429 |
427 void reset(z_stream* z) { | 430 void reset(z_stream* z) { |
428 Clear(); | 431 Clear(); |
429 z_ = z; | 432 z_ = z; |
430 } | 433 } |
431 | 434 |
432 ~ScopedZLib() { | 435 ~ScopedZLib() { Clear(); } |
433 Clear(); | |
434 } | |
435 | 436 |
436 private: | 437 private: |
437 void Clear() { | 438 void Clear() { |
438 if (!z_) { | 439 if (!z_) { |
439 return; | 440 return; |
440 } | 441 } |
441 | 442 |
442 if (type_ == DEFLATE) { | 443 if (type_ == DEFLATE) { |
443 deflateEnd(z_); | 444 deflateEnd(z_); |
444 } else { | 445 } else { |
445 inflateEnd(z_); | 446 inflateEnd(z_); |
446 } | 447 } |
447 z_ = NULL; | 448 z_ = NULL; |
448 } | 449 } |
449 | 450 |
450 z_stream* z_; | 451 z_stream* z_; |
451 const Type type_; | 452 const Type type_; |
452 }; | 453 }; |
453 | 454 |
454 } // anonymous namespace | 455 } // anonymous namespace |
455 | 456 |
456 | |
457 // static | 457 // static |
458 string CertCompressor::CompressChain(const vector<string>& certs, | 458 string CertCompressor::CompressChain(const vector<string>& certs, |
459 StringPiece client_common_set_hashes, | 459 StringPiece client_common_set_hashes, |
460 StringPiece client_cached_cert_hashes, | 460 StringPiece client_cached_cert_hashes, |
461 const CommonCertSets* common_sets) { | 461 const CommonCertSets* common_sets) { |
462 const vector<CertEntry> entries = MatchCerts( | 462 const vector<CertEntry> entries = MatchCerts( |
463 certs, client_common_set_hashes, client_cached_cert_hashes, common_sets); | 463 certs, client_common_set_hashes, client_cached_cert_hashes, common_sets); |
464 DCHECK_EQ(entries.size(), certs.size()); | 464 DCHECK_EQ(entries.size(), certs.size()); |
465 | 465 |
466 size_t uncompressed_size = 0; | 466 size_t uncompressed_size = 0; |
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478 memset(&z, 0, sizeof(z)); | 478 memset(&z, 0, sizeof(z)); |
479 int rv = deflateInit(&z, Z_DEFAULT_COMPRESSION); | 479 int rv = deflateInit(&z, Z_DEFAULT_COMPRESSION); |
480 DCHECK_EQ(Z_OK, rv); | 480 DCHECK_EQ(Z_OK, rv); |
481 if (rv != Z_OK) { | 481 if (rv != Z_OK) { |
482 return ""; | 482 return ""; |
483 } | 483 } |
484 scoped_z.reset(&z); | 484 scoped_z.reset(&z); |
485 | 485 |
486 string zlib_dict = ZlibDictForEntries(entries, certs); | 486 string zlib_dict = ZlibDictForEntries(entries, certs); |
487 | 487 |
488 rv = deflateSetDictionary(&z, reinterpret_cast<const uint8*>(&zlib_dict[0]), | 488 rv = deflateSetDictionary( |
489 zlib_dict.size()); | 489 &z, reinterpret_cast<const uint8*>(&zlib_dict[0]), zlib_dict.size()); |
490 DCHECK_EQ(Z_OK, rv); | 490 DCHECK_EQ(Z_OK, rv); |
491 if (rv != Z_OK) { | 491 if (rv != Z_OK) { |
492 return ""; | 492 return ""; |
493 } | 493 } |
494 | 494 |
495 compressed_size = deflateBound(&z, uncompressed_size); | 495 compressed_size = deflateBound(&z, uncompressed_size); |
496 } | 496 } |
497 | 497 |
498 const size_t entries_size = CertEntriesSize(entries); | 498 const size_t entries_size = CertEntriesSize(entries); |
499 | 499 |
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637 } | 637 } |
638 | 638 |
639 if (!uncompressed.empty()) { | 639 if (!uncompressed.empty()) { |
640 return false; | 640 return false; |
641 } | 641 } |
642 | 642 |
643 return true; | 643 return true; |
644 } | 644 } |
645 | 645 |
646 } // namespace net | 646 } // namespace net |
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