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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "components/crx_file/id_util.h" | 5 #include "components/crx_file/id_util.h" |
6 | 6 |
| 7 #include <stdint.h> |
| 8 |
7 #include "base/files/file_path.h" | 9 #include "base/files/file_path.h" |
8 #include "base/sha1.h" | 10 #include "base/sha1.h" |
9 #include "base/strings/string_number_conversions.h" | 11 #include "base/strings/string_number_conversions.h" |
10 #include "base/strings/string_util.h" | 12 #include "base/strings/string_util.h" |
| 13 #include "build/build_config.h" |
11 #include "crypto/sha2.h" | 14 #include "crypto/sha2.h" |
12 | 15 |
13 namespace { | 16 namespace { |
14 | 17 |
15 // Converts a normal hexadecimal string into the alphabet used by extensions. | 18 // Converts a normal hexadecimal string into the alphabet used by extensions. |
16 // We use the characters 'a'-'p' instead of '0'-'f' to avoid ever having a | 19 // We use the characters 'a'-'p' instead of '0'-'f' to avoid ever having a |
17 // completely numeric host, since some software interprets that as an IP | 20 // completely numeric host, since some software interprets that as an IP |
18 // address. | 21 // address. |
19 static void ConvertHexadecimalToIDAlphabet(std::string* id) { | 22 static void ConvertHexadecimalToIDAlphabet(std::string* id) { |
20 for (size_t i = 0; i < id->size(); ++i) { | 23 for (size_t i = 0; i < id->size(); ++i) { |
21 int val; | 24 int val; |
22 if (base::HexStringToInt( | 25 if (base::HexStringToInt( |
23 base::StringPiece(id->begin() + i, id->begin() + i + 1), &val)) { | 26 base::StringPiece(id->begin() + i, id->begin() + i + 1), &val)) { |
24 (*id)[i] = val + 'a'; | 27 (*id)[i] = val + 'a'; |
25 } else { | 28 } else { |
26 (*id)[i] = 'a'; | 29 (*id)[i] = 'a'; |
27 } | 30 } |
28 } | 31 } |
29 } | 32 } |
30 | 33 |
31 } // namespace | 34 } // namespace |
32 | 35 |
33 namespace crx_file { | 36 namespace crx_file { |
34 namespace id_util { | 37 namespace id_util { |
35 | 38 |
36 // First 16 bytes of SHA256 hashed public key. | 39 // First 16 bytes of SHA256 hashed public key. |
37 const size_t kIdSize = 16; | 40 const size_t kIdSize = 16; |
38 | 41 |
39 std::string GenerateId(const std::string& input) { | 42 std::string GenerateId(const std::string& input) { |
40 uint8 hash[kIdSize]; | 43 uint8_t hash[kIdSize]; |
41 crypto::SHA256HashString(input, hash, sizeof(hash)); | 44 crypto::SHA256HashString(input, hash, sizeof(hash)); |
42 std::string output = | 45 std::string output = |
43 base::ToLowerASCII(base::HexEncode(hash, sizeof(hash))); | 46 base::ToLowerASCII(base::HexEncode(hash, sizeof(hash))); |
44 ConvertHexadecimalToIDAlphabet(&output); | 47 ConvertHexadecimalToIDAlphabet(&output); |
45 | 48 |
46 return output; | 49 return output; |
47 } | 50 } |
48 | 51 |
49 std::string GenerateIdForPath(const base::FilePath& path) { | 52 std::string GenerateIdForPath(const base::FilePath& path) { |
50 base::FilePath new_path = MaybeNormalizePath(path); | 53 base::FilePath new_path = MaybeNormalizePath(path); |
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86 std::string temp = base::ToLowerASCII(id); | 89 std::string temp = base::ToLowerASCII(id); |
87 for (size_t i = 0; i < temp.size(); i++) | 90 for (size_t i = 0; i < temp.size(); i++) |
88 if (temp[i] < 'a' || temp[i] > 'p') | 91 if (temp[i] < 'a' || temp[i] > 'p') |
89 return false; | 92 return false; |
90 | 93 |
91 return true; | 94 return true; |
92 } | 95 } |
93 | 96 |
94 } // namespace id_util | 97 } // namespace id_util |
95 } // namespace crx_file | 98 } // namespace crx_file |
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