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| 1 /* | |
| 2 * Copyright 2008 The WebRTC Project Authors. All rights reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "webrtc/base/optionsfile.h" | |
| 12 | |
| 13 #include <ctype.h> | |
| 14 | |
| 15 #include "webrtc/base/logging.h" | |
| 16 #include "webrtc/base/stream.h" | |
| 17 #include "webrtc/base/stringencode.h" | |
| 18 | |
| 19 namespace rtc { | |
| 20 | |
| 21 OptionsFile::OptionsFile(const std::string &path) : path_(path) { | |
| 22 } | |
| 23 | |
| 24 OptionsFile::~OptionsFile() = default; | |
| 25 | |
| 26 bool OptionsFile::Load() { | |
| 27 options_.clear(); | |
| 28 // Open file. | |
| 29 FileStream stream; | |
| 30 int err; | |
| 31 if (!stream.Open(path_, "r", &err)) { | |
| 32 LOG_F(LS_WARNING) << "Could not open file, err=" << err; | |
| 33 // We do not consider this an error because we expect there to be no file | |
| 34 // until the user saves a setting. | |
| 35 return true; | |
| 36 } | |
| 37 // Read in all its data. | |
| 38 std::string line; | |
| 39 StreamResult res; | |
| 40 for (;;) { | |
| 41 res = stream.ReadLine(&line); | |
| 42 if (res != SR_SUCCESS) { | |
| 43 break; | |
| 44 } | |
| 45 size_t equals_pos = line.find('='); | |
| 46 if (equals_pos == std::string::npos) { | |
| 47 // We do not consider this an error. Instead we ignore the line and | |
| 48 // keep going. | |
| 49 LOG_F(LS_WARNING) << "Ignoring malformed line in " << path_; | |
| 50 continue; | |
| 51 } | |
| 52 std::string key(line, 0, equals_pos); | |
| 53 std::string value(line, equals_pos + 1, line.length() - (equals_pos + 1)); | |
| 54 options_[key] = value; | |
| 55 } | |
| 56 if (res != SR_EOS) { | |
| 57 LOG_F(LS_ERROR) << "Error when reading from file"; | |
| 58 return false; | |
| 59 } else { | |
| 60 return true; | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 bool OptionsFile::Save() { | |
| 65 // Open file. | |
| 66 FileStream stream; | |
| 67 int err; | |
| 68 if (!stream.Open(path_, "w", &err)) { | |
| 69 LOG_F(LS_ERROR) << "Could not open file, err=" << err; | |
| 70 return false; | |
| 71 } | |
| 72 // Write out all the data. | |
| 73 StreamResult res = SR_SUCCESS; | |
| 74 size_t written; | |
| 75 int error; | |
| 76 for (OptionsMap::const_iterator i = options_.begin(); i != options_.end(); | |
| 77 ++i) { | |
| 78 res = stream.WriteAll(i->first.c_str(), i->first.length(), &written, | |
| 79 &error); | |
| 80 if (res != SR_SUCCESS) { | |
| 81 break; | |
| 82 } | |
| 83 res = stream.WriteAll("=", 1, &written, &error); | |
| 84 if (res != SR_SUCCESS) { | |
| 85 break; | |
| 86 } | |
| 87 res = stream.WriteAll(i->second.c_str(), i->second.length(), &written, | |
| 88 &error); | |
| 89 if (res != SR_SUCCESS) { | |
| 90 break; | |
| 91 } | |
| 92 res = stream.WriteAll("\n", 1, &written, &error); | |
| 93 if (res != SR_SUCCESS) { | |
| 94 break; | |
| 95 } | |
| 96 } | |
| 97 if (res != SR_SUCCESS) { | |
| 98 LOG_F(LS_ERROR) << "Unable to write to file"; | |
| 99 return false; | |
| 100 } else { | |
| 101 return true; | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 bool OptionsFile::IsLegalName(const std::string &name) { | |
| 106 for (size_t pos = 0; pos < name.length(); ++pos) { | |
| 107 if (name[pos] == '\n' || name[pos] == '\\' || name[pos] == '=') { | |
| 108 // Illegal character. | |
| 109 LOG(LS_WARNING) << "Ignoring operation for illegal option " << name; | |
| 110 return false; | |
| 111 } | |
| 112 } | |
| 113 return true; | |
| 114 } | |
| 115 | |
| 116 bool OptionsFile::IsLegalValue(const std::string &value) { | |
| 117 for (size_t pos = 0; pos < value.length(); ++pos) { | |
| 118 if (value[pos] == '\n' || value[pos] == '\\') { | |
| 119 // Illegal character. | |
| 120 LOG(LS_WARNING) << "Ignoring operation for illegal value " << value; | |
| 121 return false; | |
| 122 } | |
| 123 } | |
| 124 return true; | |
| 125 } | |
| 126 | |
| 127 bool OptionsFile::GetStringValue(const std::string& option, | |
| 128 std::string *out_val) const { | |
| 129 LOG(LS_VERBOSE) << "OptionsFile::GetStringValue " | |
| 130 << option; | |
| 131 if (!IsLegalName(option)) { | |
| 132 return false; | |
| 133 } | |
| 134 OptionsMap::const_iterator i = options_.find(option); | |
| 135 if (i == options_.end()) { | |
| 136 return false; | |
| 137 } | |
| 138 *out_val = i->second; | |
| 139 return true; | |
| 140 } | |
| 141 | |
| 142 bool OptionsFile::GetIntValue(const std::string& option, | |
| 143 int *out_val) const { | |
| 144 LOG(LS_VERBOSE) << "OptionsFile::GetIntValue " | |
| 145 << option; | |
| 146 if (!IsLegalName(option)) { | |
| 147 return false; | |
| 148 } | |
| 149 OptionsMap::const_iterator i = options_.find(option); | |
| 150 if (i == options_.end()) { | |
| 151 return false; | |
| 152 } | |
| 153 return FromString(i->second, out_val); | |
| 154 } | |
| 155 | |
| 156 bool OptionsFile::SetStringValue(const std::string& option, | |
| 157 const std::string& value) { | |
| 158 LOG(LS_VERBOSE) << "OptionsFile::SetStringValue " | |
| 159 << option << ":" << value; | |
| 160 if (!IsLegalName(option) || !IsLegalValue(value)) { | |
| 161 return false; | |
| 162 } | |
| 163 options_[option] = value; | |
| 164 return true; | |
| 165 } | |
| 166 | |
| 167 bool OptionsFile::SetIntValue(const std::string& option, | |
| 168 int value) { | |
| 169 LOG(LS_VERBOSE) << "OptionsFile::SetIntValue " | |
| 170 << option << ":" << value; | |
| 171 if (!IsLegalName(option)) { | |
| 172 return false; | |
| 173 } | |
| 174 return ToString(value, &options_[option]); | |
| 175 } | |
| 176 | |
| 177 bool OptionsFile::RemoveValue(const std::string& option) { | |
| 178 LOG(LS_VERBOSE) << "OptionsFile::RemoveValue " << option; | |
| 179 if (!IsLegalName(option)) { | |
| 180 return false; | |
| 181 } | |
| 182 options_.erase(option); | |
| 183 return true; | |
| 184 } | |
| 185 | |
| 186 } // namespace rtc | |
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Chromium Code Reviews
Issue 2877023002:
Move webrtc/{base => rtc_base} (Closed)
