Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 1 | // Copyright 2015 The Chromium OS 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 "buffet/buffet_config.h" |
| 6 | |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 7 | #include <map> |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 8 | #include <set> |
| 9 | |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 10 | #include <base/files/file_enumerator.h> |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 11 | #include <base/files/file_util.h> |
| 12 | #include <base/files/important_file_writer.h> |
| 13 | #include <base/logging.h> |
| 14 | #include <base/strings/string_number_conversions.h> |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 15 | #include <chromeos/errors/error.h> |
| 16 | #include <chromeos/errors/error_codes.h> |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 17 | #include <chromeos/strings/string_utils.h> |
| 18 | #include <weave/enum_to_string.h> |
| 19 | |
| 20 | namespace buffet { |
| 21 | |
| 22 | namespace { |
| 23 | |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 24 | const char kErrorDomain[] = "buffet"; |
| 25 | const char kFileReadError[] = "file_read_error"; |
| 26 | |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 27 | bool StringToTimeDelta(const std::string& value, base::TimeDelta* delta) { |
| 28 | uint64_t ms{0}; |
| 29 | if (!base::StringToUint64(value, &ms)) |
| 30 | return false; |
| 31 | *delta = base::TimeDelta::FromMilliseconds(ms); |
| 32 | return true; |
| 33 | } |
| 34 | |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 35 | bool LoadFile(const base::FilePath& file_path, |
| 36 | std::string* data, |
| 37 | chromeos::ErrorPtr* error) { |
| 38 | if (!base::ReadFileToString(file_path, data)) { |
| 39 | chromeos::errors::system::AddSystemError(error, FROM_HERE, errno); |
| 40 | chromeos::Error::AddToPrintf(error, FROM_HERE, kErrorDomain, kFileReadError, |
| 41 | "Failed to read file '%s'", |
| 42 | file_path.value().c_str()); |
| 43 | return false; |
| 44 | } |
| 45 | return true; |
| 46 | } |
| 47 | |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 48 | } // namespace |
| 49 | |
| 50 | namespace config_keys { |
| 51 | |
| 52 | const char kClientId[] = "client_id"; |
| 53 | const char kClientSecret[] = "client_secret"; |
| 54 | const char kApiKey[] = "api_key"; |
| 55 | const char kOAuthURL[] = "oauth_url"; |
| 56 | const char kServiceURL[] = "service_url"; |
| 57 | const char kName[] = "name"; |
| 58 | const char kDescription[] = "description"; |
| 59 | const char kLocation[] = "location"; |
| 60 | const char kLocalAnonymousAccessRole[] = "local_anonymous_access_role"; |
| 61 | const char kLocalDiscoveryEnabled[] = "local_discovery_enabled"; |
| 62 | const char kLocalPairingEnabled[] = "local_pairing_enabled"; |
| 63 | const char kOemName[] = "oem_name"; |
| 64 | const char kModelName[] = "model_name"; |
| 65 | const char kModelId[] = "model_id"; |
| 66 | const char kPollingPeriodMs[] = "polling_period_ms"; |
| 67 | const char kBackupPollingPeriodMs[] = "backup_polling_period_ms"; |
| 68 | const char kWifiAutoSetupEnabled[] = "wifi_auto_setup_enabled"; |
| 69 | const char kBleSetupEnabled[] = "ble_setup_enabled"; |
| 70 | const char kEmbeddedCode[] = "embedded_code"; |
| 71 | const char kPairingModes[] = "pairing_modes"; |
| 72 | |
| 73 | } // namespace config_keys |
| 74 | |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 75 | BuffetConfig::BuffetConfig(const BuffetConfigPaths& paths) : paths_(paths) {} |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 76 | |
| 77 | void BuffetConfig::AddOnChangedCallback(const OnChangedCallback& callback) { |
| 78 | on_changed_.push_back(callback); |
| 79 | } |
| 80 | |
| 81 | bool BuffetConfig::LoadDefaults(weave::Settings* settings) { |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 82 | if (!base::PathExists(paths_.defaults)) |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 83 | return true; // Nothing to load. |
| 84 | |
| 85 | chromeos::KeyValueStore store; |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 86 | if (!store.Load(paths_.defaults)) |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 87 | return false; |
| 88 | return LoadDefaults(store, settings); |
| 89 | } |
| 90 | |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 91 | std::string BuffetConfig::LoadBaseCommandDefs() { |
| 92 | // Load global standard GCD command dictionary. |
| 93 | base::FilePath path{paths_.definitions.Append("gcd.json")}; |
| 94 | LOG(INFO) << "Loading standard commands from " << path.value(); |
| 95 | std::string result; |
| 96 | CHECK(LoadFile(path, &result, nullptr)); |
| 97 | return result; |
| 98 | } |
| 99 | |
| 100 | std::map<std::string, std::string> BuffetConfig::LoadCommandDefs() { |
| 101 | std::map<std::string, std::string> result; |
| 102 | auto load_packages = [&result](const base::FilePath& root, |
| 103 | const base::FilePath::StringType& pattern) { |
| 104 | base::FilePath dir{root.Append("commands")}; |
| 105 | VLOG(2) << "Looking for commands in " << dir.value(); |
| 106 | base::FileEnumerator enumerator(dir, false, base::FileEnumerator::FILES, |
| 107 | pattern); |
| 108 | for (base::FilePath path = enumerator.Next(); !path.empty(); |
| 109 | path = enumerator.Next()) { |
| 110 | LOG(INFO) << "Loading command schema from " << path.value(); |
| 111 | std::string category = path.BaseName().RemoveExtension().value(); |
| 112 | CHECK(LoadFile(path, &result[category], nullptr)); |
| 113 | } |
| 114 | }; |
| 115 | load_packages(paths_.definitions, FILE_PATH_LITERAL("*.json")); |
| 116 | load_packages(paths_.test_definitions, FILE_PATH_LITERAL("*test.json")); |
| 117 | return result; |
| 118 | } |
| 119 | |
| 120 | std::string BuffetConfig::LoadBaseStateDefs() { |
| 121 | // Load standard device state definition. |
| 122 | base::FilePath path{paths_.definitions.Append("base_state.schema.json")}; |
| 123 | LOG(INFO) << "Loading standard state definition from " << path.value(); |
| 124 | std::string result; |
| 125 | CHECK(LoadFile(path, &result, nullptr)); |
| 126 | return result; |
| 127 | } |
| 128 | |
| 129 | std::string BuffetConfig::LoadBaseStateDefaults() { |
| 130 | // Load standard device state defaults. |
| 131 | base::FilePath path{paths_.definitions.Append("base_state.defaults.json")}; |
| 132 | LOG(INFO) << "Loading base state defaults from " << path.value(); |
| 133 | std::string result; |
| 134 | CHECK(LoadFile(path, &result, nullptr)); |
| 135 | return result; |
| 136 | } |
| 137 | |
| 138 | std::map<std::string, std::string> BuffetConfig::LoadStateDefs() { |
| 139 | // Load component-specific device state definitions. |
| 140 | base::FilePath dir{paths_.definitions.Append("states")}; |
| 141 | base::FileEnumerator enumerator(dir, false, base::FileEnumerator::FILES, |
| 142 | FILE_PATH_LITERAL("*.schema.json")); |
| 143 | std::map<std::string, std::string> result; |
| 144 | for (base::FilePath path = enumerator.Next(); !path.empty(); |
| 145 | path = enumerator.Next()) { |
| 146 | LOG(INFO) << "Loading state definition from " << path.value(); |
| 147 | std::string category = path.BaseName().RemoveExtension().value(); |
| 148 | CHECK(LoadFile(path, &result[category], nullptr)); |
| 149 | } |
| 150 | return result; |
| 151 | } |
| 152 | |
| 153 | std::vector<std::string> BuffetConfig::LoadStateDefaults() { |
| 154 | // Load component-specific device state defaults. |
| 155 | base::FilePath dir{paths_.definitions.Append("states")}; |
| 156 | base::FileEnumerator enumerator(dir, false, base::FileEnumerator::FILES, |
| 157 | FILE_PATH_LITERAL("*.defaults.json")); |
| 158 | std::vector<std::string> result; |
| 159 | for (base::FilePath path = enumerator.Next(); !path.empty(); |
| 160 | path = enumerator.Next()) { |
| 161 | LOG(INFO) << "Loading state defaults from " << path.value(); |
| 162 | std::string json; |
| 163 | CHECK(LoadFile(path, &json, nullptr)); |
| 164 | result.push_back(json); |
| 165 | } |
| 166 | return result; |
| 167 | } |
| 168 | |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 169 | bool BuffetConfig::LoadDefaults(const chromeos::KeyValueStore& store, |
| 170 | weave::Settings* settings) { |
| 171 | store.GetString(config_keys::kClientId, &settings->client_id); |
| 172 | store.GetString(config_keys::kClientSecret, &settings->client_secret); |
| 173 | store.GetString(config_keys::kApiKey, &settings->api_key); |
| 174 | store.GetString(config_keys::kOAuthURL, &settings->oauth_url); |
| 175 | store.GetString(config_keys::kServiceURL, &settings->service_url); |
| 176 | store.GetString(config_keys::kOemName, &settings->oem_name); |
| 177 | store.GetString(config_keys::kModelName, &settings->model_name); |
| 178 | store.GetString(config_keys::kModelId, &settings->model_id); |
Vitaly Buka | 7b9ebee | 2015-08-16 01:55:41 -0700 | [diff] [blame] | 179 | |
| 180 | base::FilePath lsb_release_path("/etc/lsb-release"); |
| 181 | chromeos::KeyValueStore lsb_release_store; |
| 182 | if (lsb_release_store.Load(lsb_release_path) && |
| 183 | lsb_release_store.GetString("CHROMEOS_RELEASE_VERSION", |
| 184 | &settings->firmware_version)) { |
| 185 | } else { |
| 186 | LOG(ERROR) << "Failed to get CHROMEOS_RELEASE_VERSION from " |
| 187 | << lsb_release_path.value(); |
| 188 | } |
| 189 | |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 190 | std::string polling_period_str; |
| 191 | if (store.GetString(config_keys::kPollingPeriodMs, &polling_period_str) && |
| 192 | !StringToTimeDelta(polling_period_str, &settings->polling_period)) { |
| 193 | return false; |
| 194 | } |
| 195 | |
| 196 | if (store.GetString(config_keys::kBackupPollingPeriodMs, |
| 197 | &polling_period_str) && |
| 198 | !StringToTimeDelta(polling_period_str, |
| 199 | &settings->backup_polling_period)) { |
| 200 | return false; |
| 201 | } |
| 202 | |
| 203 | store.GetBoolean(config_keys::kWifiAutoSetupEnabled, |
| 204 | &settings->wifi_auto_setup_enabled); |
| 205 | store.GetBoolean(config_keys::kBleSetupEnabled, &settings->ble_setup_enabled); |
| 206 | store.GetString(config_keys::kEmbeddedCode, &settings->embedded_code); |
| 207 | |
| 208 | std::string modes_str; |
| 209 | if (store.GetString(config_keys::kPairingModes, &modes_str)) { |
| 210 | std::set<weave::PairingType> pairing_modes; |
| 211 | for (const std::string& mode : |
| 212 | chromeos::string_utils::Split(modes_str, ",", true, true)) { |
| 213 | weave::PairingType pairing_mode; |
| 214 | if (!StringToEnum(mode, &pairing_mode)) |
| 215 | return false; |
| 216 | pairing_modes.insert(pairing_mode); |
| 217 | } |
| 218 | settings->pairing_modes = std::move(pairing_modes); |
| 219 | } |
| 220 | |
| 221 | store.GetString(config_keys::kName, &settings->name); |
| 222 | store.GetString(config_keys::kDescription, &settings->description); |
| 223 | store.GetString(config_keys::kLocation, &settings->location); |
| 224 | store.GetString(config_keys::kLocalAnonymousAccessRole, |
| 225 | &settings->local_anonymous_access_role); |
| 226 | store.GetBoolean(config_keys::kLocalDiscoveryEnabled, |
| 227 | &settings->local_discovery_enabled); |
| 228 | store.GetBoolean(config_keys::kLocalPairingEnabled, |
| 229 | &settings->local_pairing_enabled); |
| 230 | return true; |
| 231 | } |
| 232 | |
| 233 | std::string BuffetConfig::LoadSettings() { |
| 234 | std::string json_string; |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 235 | base::ReadFileToString(paths_.settings, &json_string); |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 236 | return json_string; |
| 237 | } |
| 238 | |
| 239 | void BuffetConfig::SaveSettings(const std::string& settings) { |
Vitaly Buka | becd461 | 2015-08-16 23:31:55 -0700 | [diff] [blame^] | 240 | base::ImportantFileWriter::WriteFileAtomically(paths_.settings, settings); |
Vitaly Buka | 1175a9b | 2015-08-15 10:42:17 -0700 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | void BuffetConfig::OnSettingsChanged(const weave::Settings& settings) { |
| 244 | for (const auto& cb : on_changed_) |
| 245 | cb.Run(settings); |
| 246 | } |
| 247 | |
| 248 | } // namespace buffet |