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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "net/cert/crl_set.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "base/time/time.h" | |
9 | |
10 namespace net { | |
11 | |
12 CRLSet::CRLSet() | |
13 : sequence_(0), | |
14 not_after_(0) { | |
15 } | |
16 | |
17 CRLSet::~CRLSet() { | |
18 } | |
19 | |
20 CRLSet::Result CRLSet::CheckSPKI(const base::StringPiece& spki_hash) const { | |
21 for (std::vector<std::string>::const_iterator i = blocked_spkis_.begin(); | |
22 i != blocked_spkis_.end(); ++i) { | |
23 if (spki_hash.size() == i->size() && | |
24 memcmp(spki_hash.data(), i->data(), i->size()) == 0) { | |
25 return REVOKED; | |
26 } | |
27 } | |
28 | |
29 return GOOD; | |
30 } | |
31 | |
32 CRLSet::Result CRLSet::CheckSerial( | |
33 const base::StringPiece& serial_number, | |
34 const base::StringPiece& issuer_spki_hash) const { | |
35 base::StringPiece serial(serial_number); | |
36 | |
37 if (!serial.empty() && (serial[0] & 0x80) != 0) { | |
38 // This serial number is negative but the process which generates CRL sets | |
39 // will reject any certificates with negative serial numbers as invalid. | |
40 return UNKNOWN; | |
41 } | |
42 | |
43 // Remove any leading zero bytes. | |
44 while (serial.size() > 1 && serial[0] == 0x00) | |
45 serial.remove_prefix(1); | |
46 | |
47 base::hash_map<std::string, size_t>::const_iterator crl_index = | |
48 crls_index_by_issuer_.find(issuer_spki_hash.as_string()); | |
49 if (crl_index == crls_index_by_issuer_.end()) | |
50 return UNKNOWN; | |
51 const std::vector<std::string>& serials = crls_[crl_index->second].second; | |
52 | |
53 for (std::vector<std::string>::const_iterator i = serials.begin(); | |
54 i != serials.end(); ++i) { | |
55 if (base::StringPiece(*i) == serial) | |
56 return REVOKED; | |
57 } | |
58 | |
59 return GOOD; | |
60 } | |
61 | |
62 bool CRLSet::IsExpired() const { | |
63 if (not_after_ == 0) | |
64 return false; | |
65 | |
66 uint64 now = base::Time::Now().ToTimeT(); | |
67 return now > not_after_; | |
68 } | |
69 | |
70 uint32 CRLSet::sequence() const { | |
71 return sequence_; | |
72 } | |
73 | |
74 const CRLSet::CRLList& CRLSet::crls() const { | |
75 return crls_; | |
76 } | |
77 | |
78 // static | |
79 CRLSet* CRLSet::EmptyCRLSetForTesting() { | |
80 return ForTesting(false, NULL, ""); | |
81 } | |
82 | |
83 CRLSet* CRLSet::ExpiredCRLSetForTesting() { | |
84 return ForTesting(true, NULL, ""); | |
85 } | |
86 | |
87 // static | |
88 CRLSet* CRLSet::ForTesting(bool is_expired, | |
89 const SHA256HashValue* issuer_spki, | |
90 const std::string& serial_number) { | |
91 CRLSet* crl_set = new CRLSet; | |
92 if (is_expired) | |
93 crl_set->not_after_ = 1; | |
94 if (issuer_spki != NULL) { | |
95 const std::string spki(reinterpret_cast<const char*>(issuer_spki->data), | |
96 sizeof(issuer_spki->data)); | |
97 crl_set->crls_.push_back(make_pair(spki, std::vector<std::string>())); | |
98 crl_set->crls_index_by_issuer_[spki] = 0; | |
99 } | |
100 | |
101 if (!serial_number.empty()) | |
102 crl_set->crls_[0].second.push_back(serial_number); | |
103 | |
104 return crl_set; | |
105 } | |
106 | |
107 } // namespace net | |
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