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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/x509_cert_types.h" | |
6 | |
7 #include <cstdlib> | |
8 #include <cstring> | |
9 | |
10 #include "base/logging.h" | |
11 #include "base/strings/string_number_conversions.h" | |
12 #include "base/strings/string_piece.h" | |
13 #include "base/time/time.h" | |
14 #include "net/cert/x509_certificate.h" | |
15 | |
16 namespace net { | |
17 | |
18 namespace { | |
19 | |
20 // Helper for ParseCertificateDate. |*field| must contain at least | |
21 // |field_len| characters. |*field| will be advanced by |field_len| on exit. | |
22 // |*ok| is set to false if there is an error in parsing the number, but left | |
23 // untouched otherwise. Returns the parsed integer. | |
24 int ParseIntAndAdvance(const char** field, size_t field_len, bool* ok) { | |
25 int result = 0; | |
26 *ok &= base::StringToInt(base::StringPiece(*field, field_len), &result); | |
27 *field += field_len; | |
28 return result; | |
29 } | |
30 | |
31 } | |
32 | |
33 CertPrincipal::CertPrincipal() { | |
34 } | |
35 | |
36 CertPrincipal::CertPrincipal(const std::string& name) : common_name(name) {} | |
37 | |
38 CertPrincipal::~CertPrincipal() { | |
39 } | |
40 | |
41 std::string CertPrincipal::GetDisplayName() const { | |
42 if (!common_name.empty()) | |
43 return common_name; | |
44 if (!organization_names.empty()) | |
45 return organization_names[0]; | |
46 if (!organization_unit_names.empty()) | |
47 return organization_unit_names[0]; | |
48 | |
49 return std::string(); | |
50 } | |
51 | |
52 bool ParseCertificateDate(const base::StringPiece& raw_date, | |
53 CertDateFormat format, | |
54 base::Time* time) { | |
55 size_t year_length = format == CERT_DATE_FORMAT_UTC_TIME ? 2 : 4; | |
56 | |
57 if (raw_date.length() < 11 + year_length) | |
58 return false; | |
59 | |
60 const char* field = raw_date.data(); | |
61 bool valid = true; | |
62 base::Time::Exploded exploded = {0}; | |
63 | |
64 exploded.year = ParseIntAndAdvance(&field, year_length, &valid); | |
65 exploded.month = ParseIntAndAdvance(&field, 2, &valid); | |
66 exploded.day_of_month = ParseIntAndAdvance(&field, 2, &valid); | |
67 exploded.hour = ParseIntAndAdvance(&field, 2, &valid); | |
68 exploded.minute = ParseIntAndAdvance(&field, 2, &valid); | |
69 exploded.second = ParseIntAndAdvance(&field, 2, &valid); | |
70 if (valid && year_length == 2) | |
71 exploded.year += exploded.year < 50 ? 2000 : 1900; | |
72 | |
73 valid &= exploded.HasValidValues(); | |
74 | |
75 if (!valid) | |
76 return false; | |
77 | |
78 *time = base::Time::FromUTCExploded(exploded); | |
79 return true; | |
80 } | |
81 | |
82 } // namespace net | |
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