OLD | NEW |
1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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/cert/pem_tokenizer.h" | 5 #include "net/cert/pem_tokenizer.h" |
6 | 6 |
7 #include "base/base64.h" | 7 #include "base/base64.h" |
8 #include "base/strings/string_util.h" | 8 #include "base/strings/string_util.h" |
9 #include "base/strings/stringprintf.h" | 9 #include "base/strings/stringprintf.h" |
10 | 10 |
(...skipping 43 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
54 if (footer_pos == StringPiece::npos) { | 54 if (footer_pos == StringPiece::npos) { |
55 pos_ = StringPiece::npos; | 55 pos_ = StringPiece::npos; |
56 return false; | 56 return false; |
57 } | 57 } |
58 | 58 |
59 // Chop off the header and footer and parse the data in between. | 59 // Chop off the header and footer and parse the data in between. |
60 StringPiece::size_type data_begin = pos_ + it->header.size(); | 60 StringPiece::size_type data_begin = pos_ + it->header.size(); |
61 pos_ = footer_pos + it->footer.size(); | 61 pos_ = footer_pos + it->footer.size(); |
62 block_type_ = it->type; | 62 block_type_ = it->type; |
63 | 63 |
64 StringPiece encoded = str_.substr(data_begin, | 64 StringPiece encoded = str_.substr(data_begin, footer_pos - data_begin); |
65 footer_pos - data_begin); | 65 if (!base::Base64Decode( |
66 if (!base::Base64Decode(base::CollapseWhitespaceASCII(encoded.as_string(), | 66 base::CollapseWhitespaceASCII(encoded.as_string(), true), |
67 true), &data_)) { | 67 &data_)) { |
68 // The most likely cause for a decode failure is a datatype that | 68 // The most likely cause for a decode failure is a datatype that |
69 // includes PEM headers, which are not supported. | 69 // includes PEM headers, which are not supported. |
70 break; | 70 break; |
71 } | 71 } |
72 | 72 |
73 return true; | 73 return true; |
74 } | 74 } |
75 | 75 |
76 // If the block did not match any acceptable type, move past it and | 76 // If the block did not match any acceptable type, move past it and |
77 // continue the search. Otherwise, |pos_| has been updated to the most | 77 // continue the search. Otherwise, |pos_| has been updated to the most |
78 // appropriate search position to continue searching from and should not | 78 // appropriate search position to continue searching from and should not |
79 // be adjusted. | 79 // be adjusted. |
80 if (it == block_types_.end()) | 80 if (it == block_types_.end()) |
81 pos_ += sizeof(kPEMSearchBlock); | 81 pos_ += sizeof(kPEMSearchBlock); |
82 } | 82 } |
83 | 83 |
84 return false; | 84 return false; |
85 } | 85 } |
86 | 86 |
87 void PEMTokenizer::Init( | 87 void PEMTokenizer::Init(const StringPiece& str, |
88 const StringPiece& str, | 88 const std::vector<std::string>& allowed_block_types) { |
89 const std::vector<std::string>& allowed_block_types) { | |
90 str_ = str; | 89 str_ = str; |
91 pos_ = 0; | 90 pos_ = 0; |
92 | 91 |
93 // Construct PEM header/footer strings for all the accepted types, to | 92 // Construct PEM header/footer strings for all the accepted types, to |
94 // reduce parsing later. | 93 // reduce parsing later. |
95 for (std::vector<std::string>::const_iterator it = | 94 for (std::vector<std::string>::const_iterator it = |
96 allowed_block_types.begin(); it != allowed_block_types.end(); ++it) { | 95 allowed_block_types.begin(); |
| 96 it != allowed_block_types.end(); |
| 97 ++it) { |
97 PEMType allowed_type; | 98 PEMType allowed_type; |
98 allowed_type.type = *it; | 99 allowed_type.type = *it; |
99 allowed_type.header = base::StringPrintf(kPEMBeginBlock, it->c_str()); | 100 allowed_type.header = base::StringPrintf(kPEMBeginBlock, it->c_str()); |
100 allowed_type.footer = base::StringPrintf(kPEMEndBlock, it->c_str()); | 101 allowed_type.footer = base::StringPrintf(kPEMEndBlock, it->c_str()); |
101 block_types_.push_back(allowed_type); | 102 block_types_.push_back(allowed_type); |
102 } | 103 } |
103 } | 104 } |
104 | 105 |
105 } // namespace net | 106 } // namespace net |
OLD | NEW |