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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 "device/bluetooth/bluetooth_utils.h" | |
| 6 | |
| 7 #include <vector> | |
| 8 | |
| 9 #include "base/basictypes.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "base/strings/string_util.h" | |
| 12 | |
| 13 namespace device { | |
| 14 namespace bluetooth_utils { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 const char* kCommonUuidPostfix = "-0000-1000-8000-00805f9b34fb"; | |
| 19 const char* kCommonUuidPrefix = "0000"; | |
| 20 const int kUuidSize = 36; | |
| 21 | |
| 22 // Returns the canonical, 128-bit canonical, and the format of the UUID | |
| 23 // in |canonical|, |canonical_128|, and |format| based on |uuid|. | |
| 24 void GetCanonicalUuid(std::string uuid, | |
| 25 std::string* canonical, | |
| 26 std::string* canonical_128, | |
| 27 UUID::Format* format) { | |
| 28 // Initialize the values for the failure case. | |
| 29 canonical->clear(); | |
| 30 canonical_128->clear(); | |
| 31 *format = UUID::kFormatInvalid; | |
| 32 | |
| 33 if (uuid.empty()) | |
| 34 return; | |
| 35 | |
| 36 if (uuid.size() < 11 && uuid.find("0x") == 0) | |
| 37 uuid = uuid.substr(2); | |
| 38 | |
| 39 if (!(uuid.size() == 4 || uuid.size() == 8 || uuid.size() == 36)) | |
| 40 return; | |
| 41 | |
| 42 if (uuid.size() == 4 || uuid.size() == 8) { | |
| 43 for (size_t i = 0; i < uuid.size(); ++i) { | |
| 44 if (!IsHexDigit(uuid[i])) | |
| 45 return; | |
| 46 } | |
| 47 if (uuid.size() == 4) { | |
| 48 canonical->assign(uuid); | |
| 49 canonical_128->assign(kCommonUuidPrefix + uuid + kCommonUuidPostfix); | |
| 50 *format = UUID::kFormat16Bit; | |
| 51 return; | |
| 52 } | |
| 53 canonical->assign(uuid); | |
| 54 canonical_128->assign(uuid + kCommonUuidPostfix); | |
| 55 *format = UUID::kFormat32Bit; | |
| 56 return; | |
| 57 } | |
| 58 | |
| 59 for (int i = 0; i < kUuidSize; ++i) { | |
| 60 if (i == 8 || i == 13 || i == 18 || i == 23) { | |
| 61 if (uuid[i] != '-') | |
| 62 return; | |
| 63 } else { | |
| 64 if (!IsHexDigit(uuid[i])) | |
| 65 return; | |
| 66 uuid[i] = tolower(uuid[i]); | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 canonical->assign(uuid); | |
| 71 canonical_128->assign(uuid); | |
| 72 *format = UUID::kFormat128Bit; | |
| 73 } | |
| 74 | |
| 75 } // namespace | |
| 76 | |
| 77 | |
| 78 UUID::UUID(const std::string& uuid) { | |
| 79 GetCanonicalUuid(uuid, &value_, &canonical_value_, &format_); | |
| 80 } | |
| 81 | |
| 82 UUID::~UUID() { | |
| 83 } | |
| 84 | |
| 85 bool UUID::IsValid() const { | |
| 86 return format_ != kFormatInvalid; | |
| 87 } | |
| 88 | |
| 89 bool UUID::operator<(const UUID& uuid) const { | |
| 90 return canonical_value_ < uuid.canonical_value_; | |
| 91 } | |
| 92 | |
| 93 bool UUID::operator==(const UUID& uuid) const { | |
| 94 return canonical_value_ == uuid.canonical_value_; | |
| 95 } | |
| 96 | |
| 97 bool UUID::operator!=(const UUID& uuid) const { | |
| 98 return canonical_value_ != uuid.canonical_value_; | |
| 99 } | |
| 100 | |
| 101 std::string CanonicalUuid(std::string uuid) { | |
| 102 std::string value; | |
| 103 std::string canonical_value; | |
| 104 UUID::Format format; | |
| 105 GetCanonicalUuid(uuid, &value, &canonical_value, &format); | |
| 106 return canonical_value; | |
| 107 } | |
| 108 | |
| 109 } // namespace bluetooth_utils | |
| 110 } // namespace device | |
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Chromium Code Reviews
Issue 224893002:
device/bluetooth: Rename device::bluetooth_utils::UUID to device::BluetoothUUID (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src