kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2021-2022 Savoir-faire Linux Inc. |
| 3 | * |
| 4 | * Author: Kateryna Kostiuk <kateryna.kostiuk@savoirfairelinux.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | */ |
| 20 | |
| 21 | #import "Adapter.h" |
| 22 | #import "Utils.h" |
| 23 | #import "jamiNotificationExtension-Swift.h" |
| 24 | |
| 25 | #import "jami/jami.h" |
| 26 | #import "jami/configurationmanager_interface.h" |
| 27 | #import "jami/callmanager_interface.h" |
| 28 | #import "jami/conversation_interface.h" |
| 29 | #import "jami/datatransfer_interface.h" |
| 30 | |
| 31 | #define MSGPACK_DISABLE_LEGACY_NIL |
| 32 | #import "opendht/crypto.h" |
| 33 | #import "opendht/default_types.h" |
kkostiuk | e10e657 | 2022-07-26 15:41:12 -0400 | [diff] [blame] | 34 | #import "yaml-cpp/yaml.h" |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 35 | |
| 36 | #import "json/json.h" |
| 37 | #import "fstream" |
| 38 | #import "charconv" |
| 39 | |
| 40 | @implementation Adapter |
| 41 | |
| 42 | static id<AdapterDelegate> _delegate; |
| 43 | |
Kateryna Kostiuk | c3c0016 | 2022-11-10 11:21:14 -0500 | [diff] [blame] | 44 | using namespace libjami; |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 45 | |
| 46 | struct PeerConnectionRequest : public dht::EncryptedValue<PeerConnectionRequest> |
| 47 | { |
| 48 | static const constexpr dht::ValueType& TYPE = dht::ValueType::USER_DATA; |
| 49 | static constexpr const char* key_prefix = "peer:"; |
| 50 | dht::Value::Id id = dht::Value::INVALID_ID; |
| 51 | std::string ice_msg {}; |
| 52 | bool isAnswer {false}; |
| 53 | std::string connType {}; |
| 54 | MSGPACK_DEFINE_MAP(id, ice_msg, isAnswer, connType) |
| 55 | }; |
| 56 | |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 57 | // Constants |
| 58 | const std::string fileSeparator = "/"; |
| 59 | NSString* const certificates = @"certificates"; |
| 60 | NSString* const crls = @"crls"; |
| 61 | NSString* const ocsp = @"ocsp"; |
kkostiuk | e10e657 | 2022-07-26 15:41:12 -0400 | [diff] [blame] | 62 | NSString* const nameCache = @"namecache"; |
| 63 | NSString* const defaultNameServer = @"ns.jami.net"; |
| 64 | std::string const nameServerConfiguration = "RingNS.uri"; |
| 65 | NSString* const accountConfig = @"config.yml"; |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 66 | |
| 67 | std::map<std::string, std::shared_ptr<CallbackWrapperBase>> confHandlers; |
kkostiuk | e10e657 | 2022-07-26 15:41:12 -0400 | [diff] [blame] | 68 | std::map<std::string, std::string> cachedNames; |
| 69 | std::map<std::string, std::string> nameServers; |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 70 | |
| 71 | #pragma mark Callbacks registration |
| 72 | - (void)registerSignals |
| 73 | { |
| 74 | confHandlers.insert(exportable_callback<ConfigurationSignal::GetAppDataPath>( |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 75 | [](const std::string& name, std::vector<std::string>* ret) { |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 76 | if (name == "cache") { |
| 77 | auto path = [Constants cachesPath]; |
| 78 | ret->push_back(std::string([path.path UTF8String])); |
| 79 | } else { |
| 80 | auto path = [Constants documentsPath]; |
| 81 | ret->push_back(std::string([path.path UTF8String])); |
| 82 | } |
| 83 | })); |
| 84 | |
| 85 | confHandlers.insert(exportable_callback<ConversationSignal::MessageReceived>( |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 86 | [weakDelegate = Adapter.delegate](const std::string& accountId, |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 87 | const std::string& conversationId, |
| 88 | std::map<std::string, std::string> message) { |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 89 | id<AdapterDelegate> delegate = weakDelegate; |
| 90 | if (delegate) { |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 91 | NSString* convId = [NSString stringWithUTF8String:conversationId.c_str()]; |
| 92 | NSString* account = [NSString stringWithUTF8String:accountId.c_str()]; |
| 93 | NSMutableDictionary* interaction = [Utils mapToDictionnary:message]; |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 94 | [delegate newInteractionWithConversationId:convId |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 95 | accountId:account |
| 96 | message:interaction]; |
| 97 | } |
| 98 | })); |
| 99 | |
| 100 | confHandlers.insert(exportable_callback<DataTransferSignal::DataTransferEvent>( |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 101 | [weakDelegate = Adapter.delegate](const std::string& account_id, |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 102 | const std::string& conversation_id, |
| 103 | const std::string& interaction_id, |
| 104 | const std::string& file_id, |
| 105 | int eventCode) { |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 106 | id<AdapterDelegate> delegate = weakDelegate; |
| 107 | if (delegate) { |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 108 | NSString* accountId = [NSString stringWithUTF8String:account_id.c_str()]; |
| 109 | NSString* conversationId = [NSString stringWithUTF8String:conversation_id.c_str()]; |
| 110 | NSString* fileId = [NSString stringWithUTF8String:file_id.c_str()]; |
| 111 | NSString* interactionId = [NSString stringWithUTF8String:interaction_id.c_str()]; |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 112 | [delegate dataTransferEventWithFileId:fileId |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 113 | withEventCode:eventCode |
| 114 | accountId:accountId |
| 115 | conversationId:conversationId |
| 116 | interactionId:interactionId]; |
| 117 | } |
| 118 | })); |
| 119 | |
| 120 | confHandlers.insert(exportable_callback<ConversationSignal::ConversationSyncFinished>( |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 121 | [weakDelegate = Adapter.delegate](const std::string& account_id) { |
| 122 | id<AdapterDelegate> delegate = weakDelegate; |
| 123 | if (delegate) { |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 124 | NSString* accountId = [NSString stringWithUTF8String:account_id.c_str()]; |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 125 | [delegate conversationSyncCompletedWithAccountId:accountId]; |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 126 | } |
| 127 | })); |
| 128 | |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 129 | confHandlers.insert(exportable_callback<ConversationSignal::ConversationRequestReceived>([weakDelegate = Adapter.delegate](const std::string& accountId, const std::string& conversationId, std::map<std::string, std::string> metadata) { |
| 130 | id<AdapterDelegate> delegate = weakDelegate; |
| 131 | if (delegate) { |
Kateryna Kostiuk | 2648aab | 2022-08-30 14:24:03 -0400 | [diff] [blame] | 132 | NSString* accountIdStr = [NSString stringWithUTF8String:accountId.c_str()]; |
| 133 | NSString* convIdStr = [NSString stringWithUTF8String:conversationId.c_str()]; |
| 134 | NSMutableDictionary* info = [Utils mapToDictionnary: metadata]; |
Kateryna Kostiuk | 8483442 | 2023-04-11 10:53:56 -0400 | [diff] [blame] | 135 | [delegate receivedConversationRequestWithAccountId: accountIdStr conversationId: convIdStr metadata:info]; |
Kateryna Kostiuk | 2648aab | 2022-08-30 14:24:03 -0400 | [diff] [blame] | 136 | } |
| 137 | })); |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 138 | registerSignalHandlers(confHandlers); |
| 139 | } |
| 140 | |
| 141 | #pragma mark AdapterDelegate |
| 142 | + (id<AdapterDelegate>)delegate |
| 143 | { |
| 144 | return _delegate; |
| 145 | } |
| 146 | |
| 147 | + (void)setDelegate:(id<AdapterDelegate>)delegate |
| 148 | { |
| 149 | _delegate = delegate; |
| 150 | } |
| 151 | |
| 152 | - (bool)downloadFileWithFileId:(NSString*)fileId |
| 153 | accountId:(NSString*)accountId |
| 154 | conversationId:(NSString*)conversationId |
| 155 | interactionId:(NSString*)interactionId |
| 156 | withFilePath:(NSString*)filePath |
| 157 | { |
| 158 | return downloadFile(std::string([accountId UTF8String]), |
| 159 | std::string([conversationId UTF8String]), |
| 160 | std::string([interactionId UTF8String]), |
| 161 | std::string([fileId UTF8String]), |
| 162 | std::string([filePath UTF8String])); |
| 163 | } |
| 164 | |
Kateryna Kostiuk | 1943765 | 2022-08-02 13:02:21 -0400 | [diff] [blame] | 165 | - (BOOL)start:(NSString*)accountId |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 166 | { |
| 167 | [self registerSignals]; |
Kateryna Kostiuk | c3c0016 | 2022-11-10 11:21:14 -0500 | [diff] [blame] | 168 | if (initialized() == true) { |
Kateryna Kostiuk | dfee1c9 | 2023-03-29 10:22:52 -0400 | [diff] [blame] | 169 | reloadConversationsAndRequests(std::string([accountId UTF8String])); |
Kateryna Kostiuk | 1943765 | 2022-08-02 13:02:21 -0400 | [diff] [blame] | 170 | setAccountActive(std::string([accountId UTF8String]), true); |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 171 | return true; |
| 172 | } |
| 173 | #if DEBUG |
Kateryna Kostiuk | d500b5d | 2023-05-17 16:20:00 -0400 | [diff] [blame] | 174 | int flag = LIBJAMI_FLAG_CONSOLE_LOG | LIBJAMI_FLAG_DEBUG | LIBJAMI_FLAG_IOS_EXTENSION | LIBJAMI_FLAG_NO_AUTOSYNC | LIBJAMI_FLAG_NO_LOCAL_AUDIO; |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 175 | #else |
Kateryna Kostiuk | d500b5d | 2023-05-17 16:20:00 -0400 | [diff] [blame] | 176 | int flag = LIBJAMI_FLAG_IOS_EXTENSION | LIBJAMI_FLAG_NO_AUTOSYNC | LIBJAMI_FLAG_NO_LOCAL_AUDIO; |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 177 | #endif |
| 178 | if (![[NSThread currentThread] isMainThread]) { |
| 179 | __block bool success; |
| 180 | dispatch_sync(dispatch_get_main_queue(), ^{ |
Kateryna Kostiuk | c3c0016 | 2022-11-10 11:21:14 -0500 | [diff] [blame] | 181 | if (init(static_cast<InitFlag>(flag))) { |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 182 | success = start({}); |
| 183 | } else { |
| 184 | success = false; |
| 185 | } |
| 186 | }); |
| 187 | return success; |
| 188 | } else { |
Kateryna Kostiuk | c3c0016 | 2022-11-10 11:21:14 -0500 | [diff] [blame] | 189 | if (init(static_cast<InitFlag>(flag))) { |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 190 | return start({}); |
| 191 | } |
| 192 | return false; |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | - (void)stop |
| 197 | { |
| 198 | unregisterSignalHandlers(); |
| 199 | confHandlers.clear(); |
| 200 | [self setAccountsActive:false]; |
| 201 | } |
| 202 | |
| 203 | - (void)setAccountsActive:(BOOL)active |
| 204 | { |
| 205 | auto accounts = getAccountList(); |
| 206 | for (auto account : accounts) { |
Kateryna Kostiuk | dfee1c9 | 2023-03-29 10:22:52 -0400 | [diff] [blame] | 207 | if (active) { |
| 208 | reloadConversationsAndRequests(account); |
| 209 | } |
kkostiuk | 3967293 | 2022-07-12 11:36:30 -0400 | [diff] [blame] | 210 | setAccountActive(account, active, true); |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 211 | } |
| 212 | } |
| 213 | |
| 214 | - (NSDictionary<NSString*, NSString*>*)decrypt:(NSString*)keyPath |
Kateryna Kostiuk | ba9a7b1 | 2023-05-02 09:33:52 -0400 | [diff] [blame] | 215 | accountId:(NSString*)accountId |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 216 | treated:(NSString*)treatedMessagesPath |
| 217 | value:(NSDictionary*)value |
| 218 | { |
| 219 | if (![[NSFileManager defaultManager] fileExistsAtPath:keyPath]) { |
| 220 | return {}; |
| 221 | } |
| 222 | |
| 223 | NSData* data = [[NSFileManager defaultManager] contentsAtPath:keyPath]; |
| 224 | const uint8_t* bytes = (const uint8_t*) [data bytes]; |
| 225 | dht::crypto::PrivateKey dhtKey(bytes, [data length], ""); |
| 226 | |
| 227 | Json::Value jsonValue = toJson(value); |
| 228 | dht::Value dhtValue(jsonValue); |
| 229 | |
| 230 | if (!dhtValue.isEncrypted()) { |
| 231 | return {}; |
| 232 | } |
| 233 | try { |
kkostiuk | 03fa94c | 2022-07-14 16:30:35 -0400 | [diff] [blame] | 234 | dht::Sp<dht::Value> decrypted = dhtValue.decrypt(dhtKey); |
| 235 | auto unpacked = msgpack::unpack((const char*) decrypted->data.data(), decrypted->data.size()); |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 236 | auto peerCR = unpacked.get().as<PeerConnectionRequest>(); |
Kateryna Kostiuk | 2648aab | 2022-08-30 14:24:03 -0400 | [diff] [blame] | 237 | if (peerCR.connType.empty()) { |
| 238 | // this value is not a PeerConnectionRequest |
| 239 | // check if it a TrustRequest |
| 240 | auto conversationRequest = unpacked.get().as<dht::TrustRequest>(); |
| 241 | if (!conversationRequest.conversationId.empty()) { |
| 242 | if (conversationRequest.service == "cx.ring") { |
| 243 | // return git message type to start daemon |
| 244 | return @{@"": @"application/im-gitmessage-id"}; |
| 245 | } |
| 246 | } |
| 247 | return {}; |
| 248 | } |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 249 | if (isMessageTreated(peerCR.id, [treatedMessagesPath UTF8String])) { |
| 250 | return {}; |
| 251 | } |
Kateryna Kostiuk | f099b5c | 2023-05-02 09:11:49 -0400 | [diff] [blame] | 252 | |
| 253 | std::string peerId = ""; |
| 254 | if (peerCR.connType == "videoCall" || peerCR.connType == "audioCall") { |
Kateryna Kostiuk | ba9a7b1 | 2023-05-02 09:33:52 -0400 | [diff] [blame] | 255 | auto certPath = [[[Constants documentsPath] URLByAppendingPathComponent:accountId] URLByAppendingPathComponent:certificates].path.UTF8String; |
| 256 | auto crlPath = [[[Constants documentsPath] URLByAppendingPathComponent:accountId] URLByAppendingPathComponent:crls].path.UTF8String; |
| 257 | auto ocspPath = [[[Constants documentsPath] URLByAppendingPathComponent:accountId] URLByAppendingPathComponent:ocsp].path.UTF8String; |
Kateryna Kostiuk | f099b5c | 2023-05-02 09:11:49 -0400 | [diff] [blame] | 258 | peerId = getPeerId(decrypted->owner->getId().toString(), |
| 259 | certPath, |
| 260 | crlPath, |
| 261 | ocspPath); |
| 262 | } |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 263 | return @{@(peerId.c_str()): @(peerCR.connType.c_str())}; |
| 264 | } catch (std::runtime_error error) { |
| 265 | } |
| 266 | return {}; |
| 267 | } |
| 268 | |
kkostiuk | e10e657 | 2022-07-26 15:41:12 -0400 | [diff] [blame] | 269 | -(NSString*)getNameFor:(NSString*)address accountId:(NSString*)accountId { |
| 270 | return @(getName(std::string([address UTF8String]), std::string([accountId UTF8String])).c_str()); |
| 271 | } |
| 272 | |
| 273 | -(NSString*)nameServerForAccountId:(NSString*)accountId; { |
| 274 | auto nameServer = getNameServer(std::string([accountId UTF8String])); |
| 275 | return nameServer.empty() ? defaultNameServer : @(nameServer.c_str()); |
| 276 | } |
| 277 | |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 278 | Json::Value |
| 279 | toJson(NSDictionary* value) |
| 280 | { |
| 281 | Json::Value val; |
| 282 | for (NSString* key in value.allKeys) { |
| 283 | if ([[value objectForKey:key] isKindOfClass:[NSString class]]) { |
| 284 | NSString* stringValue = [value objectForKey:key]; |
| 285 | val[key.UTF8String] = stringValue.UTF8String; |
| 286 | } else if ([[value objectForKey:key] isKindOfClass:[NSNumber class]]) { |
| 287 | NSNumber* number = [value objectForKey:key]; |
| 288 | if ([key isEqualToString:@"id"]) { |
| 289 | unsigned long long int intValue = [number unsignedLongLongValue]; |
| 290 | val[key.UTF8String] = intValue; |
| 291 | } else { |
| 292 | int intValue = [number intValue]; |
| 293 | val[key.UTF8String] = intValue; |
| 294 | } |
| 295 | } |
| 296 | } |
| 297 | return val; |
| 298 | } |
| 299 | |
kkostiuk | e10e657 | 2022-07-26 15:41:12 -0400 | [diff] [blame] | 300 | std::string getName(std::string addres, std::string accountId) |
| 301 | { |
| 302 | auto name = cachedNames.find(addres); |
| 303 | if (name != cachedNames.end()) { |
| 304 | return name->second; |
| 305 | } |
| 306 | |
| 307 | auto ns = getNameServer(accountId); |
Kateryna Kostiuk | 1c0e756 | 2022-08-23 15:17:44 -0400 | [diff] [blame] | 308 | NSURL *url = [NSURL URLWithString: @(ns.c_str())]; |
| 309 | NSString* host = [url host]; |
| 310 | NSString* nameServer = host.length == 0 ? defaultNameServer : host; |
kkostiuk | e10e657 | 2022-07-26 15:41:12 -0400 | [diff] [blame] | 311 | std::string namesPath = [[[Constants cachesPath] URLByAppendingPathComponent: nameCache] URLByAppendingPathComponent: nameServer].path.UTF8String; |
| 312 | |
| 313 | msgpack::unpacker pac; |
| 314 | // read file |
| 315 | std::ifstream file = std::ifstream(namesPath, std::ios_base::in); |
| 316 | if (!file.is_open()) { |
| 317 | return ""; |
| 318 | } |
| 319 | std::string line; |
| 320 | while (std::getline(file, line)) { |
| 321 | pac.reserve_buffer(line.size()); |
| 322 | memcpy(pac.buffer(), line.data(), line.size()); |
| 323 | pac.buffer_consumed(line.size()); |
| 324 | } |
| 325 | |
| 326 | // load values |
| 327 | msgpack::object_handle oh; |
| 328 | if (pac.next(oh)) |
| 329 | oh.get().convert(cachedNames); |
| 330 | auto cacheRes = cachedNames.find(addres); |
| 331 | return cacheRes != cachedNames.end() ? cacheRes->second : std::string {}; |
| 332 | } |
| 333 | |
| 334 | std::string getNameServer(std::string accountId) { |
| 335 | auto it = nameServers.find(accountId); |
| 336 | if (it != nameServers.end()) { |
| 337 | return it->second; |
| 338 | } |
| 339 | std::string nameServer {}; |
| 340 | auto accountConfigPath = [[[Constants documentsPath] URLByAppendingPathComponent: @(accountId.c_str())] URLByAppendingPathComponent: accountConfig].path.UTF8String; |
| 341 | try { |
| 342 | std::ifstream file = std::ifstream(accountConfigPath, std::ios_base::in); |
| 343 | YAML::Node node = YAML::Load(file); |
| 344 | file.close(); |
| 345 | nameServer = node[nameServerConfiguration].as<std::string>(); |
| 346 | if (!nameServer.empty()) { |
| 347 | nameServers.insert(std::pair<std::string, std::string>(accountId, nameServer)); |
| 348 | } |
| 349 | } catch (const std::exception& e) {} |
| 350 | return nameServer; |
| 351 | } |
| 352 | |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 353 | #pragma mark functions copied from the daemon |
| 354 | |
| 355 | #define LIKELY(expr) (expr) |
| 356 | #define UNLIKELY(expr) (expr) |
| 357 | |
| 358 | /* |
| 359 | * Check whether a Unicode (5.2) char is in a valid range. |
| 360 | * |
| 361 | * The first check comes from the Unicode guarantee to never encode |
| 362 | * a point above 0x0010ffff, since UTF-16 couldn't represent it. |
| 363 | * |
| 364 | * The second check covers surrogate pairs (category Cs). |
| 365 | * |
| 366 | * @param Char the character |
| 367 | */ |
| 368 | #define UNICODE_VALID(Char) ((Char) < 0x110000 && (((Char) &0xFFFFF800) != 0xD800)) |
| 369 | |
| 370 | #define CONTINUATION_CHAR \ |
| 371 | if ((*(unsigned char*) p & 0xc0) != 0x80) /* 10xxxxxx */ \ |
| 372 | goto error; \ |
| 373 | val <<= 6; \ |
| 374 | val |= (*(unsigned char*) p) & 0x3f; |
| 375 | |
kkostiuk | 74d1ae4 | 2021-06-17 11:10:15 -0400 | [diff] [blame] | 376 | template<typename ID = dht::Value::Id> |
| 377 | bool |
| 378 | isMessageTreated(ID messageId, const std::string& path) |
| 379 | { |
| 380 | std::ifstream file = std::ifstream(path, std::ios_base::in); |
| 381 | if (!file.is_open()) { |
| 382 | return false; |
| 383 | } |
| 384 | std::set<ID, std::less<>> treatedMessages; |
| 385 | std::string line; |
| 386 | while (std::getline(file, line)) { |
| 387 | if constexpr (std::is_same<ID, std::string>::value) { |
| 388 | treatedMessages.emplace(std::move(line)); |
| 389 | } else if constexpr (std::is_integral<ID>::value) { |
| 390 | ID vid; |
| 391 | if (auto [p, ec] = std::from_chars(line.data(), line.data() + line.size(), vid, 16); |
| 392 | ec == std::errc()) { |
| 393 | treatedMessages.emplace(vid); |
| 394 | } |
| 395 | } |
| 396 | } |
| 397 | return treatedMessages.find(messageId) != treatedMessages.end(); |
| 398 | } |
| 399 | |
| 400 | std::string |
| 401 | getPeerId(const std::string& key, |
| 402 | const std::string& certPath, |
| 403 | const std::string& crlPath, |
| 404 | const std::string& ocspPath) |
| 405 | { |
| 406 | std::map<std::string, std::shared_ptr<dht::crypto::Certificate>> certs; |
| 407 | auto dir_content = readDirectory(certPath); |
| 408 | unsigned n = 0; |
| 409 | for (const auto& f : dir_content) { |
| 410 | try { |
| 411 | auto crt = std::make_shared<dht::crypto::Certificate>( |
| 412 | loadFile(certPath + fileSeparator + f)); |
| 413 | auto id = crt->getId().toString(); |
| 414 | auto longId = crt->getLongId().toString(); |
| 415 | if (id != f && longId != f) |
| 416 | throw std::logic_error("Certificate id mismatch"); |
| 417 | while (crt) { |
| 418 | id = crt->getId().toString(); |
| 419 | longId = crt->getLongId().toString(); |
| 420 | certs.emplace(std::move(id), crt); |
| 421 | certs.emplace(std::move(longId), crt); |
| 422 | loadRevocations(*crt, crlPath, ocspPath); |
| 423 | crt = crt->issuer; |
| 424 | ++n; |
| 425 | } |
| 426 | } catch (const std::exception& e) { |
| 427 | } |
| 428 | } |
| 429 | auto cit = certs.find(key); |
| 430 | if (cit == certs.cend()) { |
| 431 | return {}; |
| 432 | } |
| 433 | dht::InfoHash peer_account_id; |
| 434 | if (not foundPeerDevice(cit->second, peer_account_id)) { |
| 435 | return {}; |
| 436 | } |
| 437 | return peer_account_id.toString(); |
| 438 | } |
| 439 | |
| 440 | void |
| 441 | loadRevocations(dht::crypto::Certificate& crt, |
| 442 | const std::string& crlPath, |
| 443 | const std::string& ocspPath) |
| 444 | { |
| 445 | auto dir = crlPath + fileSeparator + crt.getId().toString(); |
| 446 | for (const auto& crl : readDirectory(dir)) { |
| 447 | try { |
| 448 | crt.addRevocationList( |
| 449 | std::make_shared<dht::crypto::RevocationList>(loadFile(dir + fileSeparator + crl))); |
| 450 | } catch (const std::exception& e) { |
| 451 | } |
| 452 | } |
| 453 | auto ocsp_dir = ocspPath + fileSeparator + crt.getId().toString(); |
| 454 | for (const auto& ocsp : readDirectory(ocsp_dir)) { |
| 455 | try { |
| 456 | std::string ocsp_filepath = ocsp_dir + fileSeparator + ocsp; |
| 457 | auto serial = crt.getSerialNumber(); |
| 458 | if (dht::toHex(serial.data(), serial.size()) != ocsp) |
| 459 | continue; |
| 460 | dht::Blob ocspBlob = loadFile(ocsp_filepath); |
| 461 | crt.ocspResponse = std::make_shared<dht::crypto::OcspResponse>(ocspBlob.data(), |
| 462 | ocspBlob.size()); |
| 463 | } catch (const std::exception& e) { |
| 464 | } |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | bool |
| 469 | foundPeerDevice(const std::shared_ptr<dht::crypto::Certificate>& crt, dht::InfoHash& account_id) |
| 470 | { |
| 471 | if (not crt) |
| 472 | return false; |
| 473 | |
| 474 | auto top_issuer = crt; |
| 475 | while (top_issuer->issuer) |
| 476 | top_issuer = top_issuer->issuer; |
| 477 | |
| 478 | if (top_issuer == crt) { |
| 479 | return false; |
| 480 | } |
| 481 | dht::crypto::TrustList peer_trust; |
| 482 | peer_trust.add(*top_issuer); |
| 483 | if (not peer_trust.verify(*crt)) { |
| 484 | return false; |
| 485 | } |
| 486 | if (crt->ocspResponse and crt->ocspResponse->getCertificateStatus() != GNUTLS_OCSP_CERT_GOOD) { |
| 487 | return false; |
| 488 | } |
| 489 | account_id = crt->issuer->getId(); |
| 490 | return true; |
| 491 | } |
| 492 | |
| 493 | std::vector<std::string> |
| 494 | readDirectory(const std::string& dir) |
| 495 | { |
| 496 | NSError* error; |
| 497 | NSFileManager* fileMgr = [NSFileManager defaultManager]; |
| 498 | NSArray* files = [fileMgr contentsOfDirectoryAtPath:@(dir.c_str()) error:&error]; |
| 499 | |
| 500 | std::vector<std::string> vector; |
| 501 | for (NSString* fileName in files) { |
| 502 | vector.push_back([fileName UTF8String]); |
| 503 | } |
| 504 | return vector; |
| 505 | } |
| 506 | |
| 507 | std::vector<uint8_t> |
| 508 | loadFile(const std::string& path) |
| 509 | { |
| 510 | if (![[NSFileManager defaultManager] fileExistsAtPath:@(path.c_str())]) { |
| 511 | return {}; |
| 512 | } |
| 513 | NSData* data = [[NSFileManager defaultManager] contentsAtPath:@(path.c_str())]; |
| 514 | return [Utils vectorOfUInt8FromData:data]; |
| 515 | } |
| 516 | |
| 517 | std::string |
| 518 | utf8_make_valid(const std::string& name) |
| 519 | { |
| 520 | ssize_t remaining_bytes = name.size(); |
| 521 | ssize_t valid_bytes; |
| 522 | const char* remainder = name.c_str(); |
| 523 | const char* invalid; |
| 524 | char* str = NULL; |
| 525 | char* pos = nullptr; |
| 526 | |
| 527 | while (remaining_bytes != 0) { |
| 528 | if (utf8_validate_c_str(remainder, remaining_bytes, &invalid)) |
| 529 | break; |
| 530 | |
| 531 | valid_bytes = invalid - remainder; |
| 532 | |
| 533 | if (str == NULL) |
| 534 | // If every byte is replaced by U+FFFD, max(strlen(string)) == 3 * name.size() |
| 535 | str = new char[3 * remaining_bytes]; |
| 536 | |
| 537 | pos = str; |
| 538 | |
| 539 | strncpy(pos, remainder, valid_bytes); |
| 540 | pos += valid_bytes; |
| 541 | |
| 542 | /* append U+FFFD REPLACEMENT CHARACTER */ |
| 543 | pos[0] = '\357'; |
| 544 | pos[1] = '\277'; |
| 545 | pos[2] = '\275'; |
| 546 | |
| 547 | pos += 3; |
| 548 | |
| 549 | remaining_bytes -= valid_bytes + 1; |
| 550 | remainder = invalid + 1; |
| 551 | } |
| 552 | |
| 553 | if (str == NULL) |
| 554 | return std::string(name); |
| 555 | |
| 556 | strncpy(pos, remainder, remaining_bytes); |
| 557 | pos += remaining_bytes; |
| 558 | |
| 559 | std::string answer(str, pos - str); |
| 560 | assert(utf8_validate_c_str(answer.c_str(), -1, NULL)); |
| 561 | |
| 562 | delete[] str; |
| 563 | |
| 564 | return answer; |
| 565 | } |
| 566 | |
| 567 | bool |
| 568 | utf8_validate_c_str(const char* str, ssize_t max_len, const char** end) |
| 569 | { |
| 570 | const char* p; |
| 571 | |
| 572 | if (max_len < 0) |
| 573 | p = fast_validate(str); |
| 574 | else |
| 575 | p = fast_validate_len(str, max_len); |
| 576 | |
| 577 | if (end) |
| 578 | *end = p; |
| 579 | |
| 580 | if ((max_len >= 0 && p != str + max_len) || (max_len < 0 && *p != '\0')) |
| 581 | return false; |
| 582 | else |
| 583 | return true; |
| 584 | } |
| 585 | |
| 586 | static const char* |
| 587 | fast_validate(const char* str) |
| 588 | { |
| 589 | char32_t val = 0; |
| 590 | char32_t min = 0; |
| 591 | const char* p; |
| 592 | |
| 593 | for (p = str; *p; p++) { |
| 594 | if (*(unsigned char*) p < 128) |
| 595 | /* done */; |
| 596 | else { |
| 597 | const char* last; |
| 598 | |
| 599 | last = p; |
| 600 | |
| 601 | if ((*(unsigned char*) p & 0xe0) == 0xc0) { /* 110xxxxx */ |
| 602 | if (UNLIKELY((*(unsigned char*) p & 0x1e) == 0)) |
| 603 | goto error; |
| 604 | |
| 605 | p++; |
| 606 | |
| 607 | if (UNLIKELY((*(unsigned char*) p & 0xc0) != 0x80)) /* 10xxxxxx */ |
| 608 | goto error; |
| 609 | } else { |
| 610 | if ((*(unsigned char*) p & 0xf0) == 0xe0) { /* 1110xxxx */ |
| 611 | min = (1 << 11); |
| 612 | val = *(unsigned char*) p & 0x0f; |
| 613 | goto TWO_REMAINING; |
| 614 | } else if ((*(unsigned char*) p & 0xf8) == 0xf0) { /* 11110xxx */ |
| 615 | min = (1 << 16); |
| 616 | val = *(unsigned char*) p & 0x07; |
| 617 | } else |
| 618 | goto error; |
| 619 | |
| 620 | p++; |
| 621 | CONTINUATION_CHAR; |
| 622 | TWO_REMAINING: |
| 623 | p++; |
| 624 | CONTINUATION_CHAR; |
| 625 | p++; |
| 626 | CONTINUATION_CHAR; |
| 627 | |
| 628 | if (UNLIKELY(val < min)) |
| 629 | goto error; |
| 630 | |
| 631 | if (UNLIKELY(!UNICODE_VALID(val))) |
| 632 | goto error; |
| 633 | } |
| 634 | |
| 635 | continue; |
| 636 | |
| 637 | error: |
| 638 | return last; |
| 639 | } |
| 640 | } |
| 641 | |
| 642 | return p; |
| 643 | } |
| 644 | |
| 645 | static const char* |
| 646 | fast_validate_len(const char* str, ssize_t max_len) |
| 647 | { |
| 648 | char32_t val = 0; |
| 649 | char32_t min = 0; |
| 650 | const char* p; |
| 651 | |
| 652 | assert(max_len >= 0); |
| 653 | |
| 654 | for (p = str; ((p - str) < max_len) && *p; p++) { |
| 655 | if (*(unsigned char*) p < 128) |
| 656 | /* done */; |
| 657 | else { |
| 658 | const char* last; |
| 659 | |
| 660 | last = p; |
| 661 | |
| 662 | if ((*(unsigned char*) p & 0xe0) == 0xc0) { /* 110xxxxx */ |
| 663 | if (UNLIKELY(max_len - (p - str) < 2)) |
| 664 | goto error; |
| 665 | |
| 666 | if (UNLIKELY((*(unsigned char*) p & 0x1e) == 0)) |
| 667 | goto error; |
| 668 | |
| 669 | p++; |
| 670 | |
| 671 | if (UNLIKELY((*(unsigned char*) p & 0xc0) != 0x80)) /* 10xxxxxx */ |
| 672 | goto error; |
| 673 | } else { |
| 674 | if ((*(unsigned char*) p & 0xf0) == 0xe0) { /* 1110xxxx */ |
| 675 | if (UNLIKELY(max_len - (p - str) < 3)) |
| 676 | goto error; |
| 677 | |
| 678 | min = (1 << 11); |
| 679 | val = *(unsigned char*) p & 0x0f; |
| 680 | goto TWO_REMAINING; |
| 681 | } else if ((*(unsigned char*) p & 0xf8) == 0xf0) { /* 11110xxx */ |
| 682 | if (UNLIKELY(max_len - (p - str) < 4)) |
| 683 | goto error; |
| 684 | |
| 685 | min = (1 << 16); |
| 686 | val = *(unsigned char*) p & 0x07; |
| 687 | } else |
| 688 | goto error; |
| 689 | |
| 690 | p++; |
| 691 | CONTINUATION_CHAR; |
| 692 | TWO_REMAINING: |
| 693 | p++; |
| 694 | CONTINUATION_CHAR; |
| 695 | p++; |
| 696 | CONTINUATION_CHAR; |
| 697 | |
| 698 | if (UNLIKELY(val < min)) |
| 699 | goto error; |
| 700 | |
| 701 | if (UNLIKELY(!UNICODE_VALID(val))) |
| 702 | goto error; |
| 703 | } |
| 704 | |
| 705 | continue; |
| 706 | |
| 707 | error: |
| 708 | return last; |
| 709 | } |
| 710 | } |
| 711 | |
| 712 | return p; |
| 713 | } |
| 714 | |
| 715 | @end |