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1 // Copyright (c) 2009 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/base/cert_status_flags.h"
6 
7 #include "base/logging.h"
8 #include "net/base/net_errors.h"
9 
10 namespace net {
11 
MapNetErrorToCertStatus(int error)12 int MapNetErrorToCertStatus(int error) {
13   switch (error) {
14     case ERR_CERT_COMMON_NAME_INVALID:
15       return CERT_STATUS_COMMON_NAME_INVALID;
16     case ERR_CERT_DATE_INVALID:
17       return CERT_STATUS_DATE_INVALID;
18     case ERR_CERT_AUTHORITY_INVALID:
19       return CERT_STATUS_AUTHORITY_INVALID;
20     case ERR_CERT_NO_REVOCATION_MECHANISM:
21       return CERT_STATUS_NO_REVOCATION_MECHANISM;
22     case ERR_CERT_UNABLE_TO_CHECK_REVOCATION:
23       return CERT_STATUS_UNABLE_TO_CHECK_REVOCATION;
24     case ERR_CERT_REVOKED:
25       return CERT_STATUS_REVOKED;
26     // We added the ERR_CERT_CONTAINS_ERRORS error code when we were using
27     // WinInet, but we never figured out how it differs from ERR_CERT_INVALID.
28     // We should not use ERR_CERT_CONTAINS_ERRORS in new code.
29     case ERR_CERT_CONTAINS_ERRORS:
30       NOTREACHED();
31       // Falls through.
32     case ERR_CERT_INVALID:
33       return CERT_STATUS_INVALID;
34     case ERR_CERT_WEAK_SIGNATURE_ALGORITHM:
35       return CERT_STATUS_WEAK_SIGNATURE_ALGORITHM;
36     case ERR_CERT_NOT_IN_DNS:
37       return CERT_STATUS_NOT_IN_DNS;
38     default:
39       return 0;
40   }
41 }
42 
MapCertStatusToNetError(int cert_status)43 int MapCertStatusToNetError(int cert_status) {
44   // A certificate may have multiple errors.  We report the most
45   // serious error.
46 
47   // Unrecoverable errors
48   if (cert_status & CERT_STATUS_REVOKED)
49     return ERR_CERT_REVOKED;
50   if (cert_status & CERT_STATUS_INVALID)
51     return ERR_CERT_INVALID;
52 
53   // Recoverable errors
54   if (cert_status & CERT_STATUS_AUTHORITY_INVALID)
55     return ERR_CERT_AUTHORITY_INVALID;
56   if (cert_status & CERT_STATUS_COMMON_NAME_INVALID)
57     return ERR_CERT_COMMON_NAME_INVALID;
58   if (cert_status & CERT_STATUS_WEAK_SIGNATURE_ALGORITHM)
59     return ERR_CERT_WEAK_SIGNATURE_ALGORITHM;
60   if (cert_status & CERT_STATUS_DATE_INVALID)
61     return ERR_CERT_DATE_INVALID;
62 
63   // Unknown status.  Give it the benefit of the doubt.
64   if (cert_status & CERT_STATUS_UNABLE_TO_CHECK_REVOCATION)
65     return ERR_CERT_UNABLE_TO_CHECK_REVOCATION;
66   if (cert_status & CERT_STATUS_NO_REVOCATION_MECHANISM)
67     return ERR_CERT_NO_REVOCATION_MECHANISM;
68   if (cert_status & CERT_STATUS_NOT_IN_DNS)
69     return ERR_CERT_NOT_IN_DNS;
70 
71   NOTREACHED();
72   return ERR_UNEXPECTED;
73 }
74 
75 }  // namespace net
76