| 1 | import 'dart:async'; |
| 2 | import 'dart:convert'; |
| 3 | import 'dart:io'; |
| 4 | import 'dart:typed_data'; |
| 5 | import 'package:cw_core/utils/proxy_logger/abstract.dart'; |
| 6 | import 'package:cw_core/utils/proxy_socket/abstract.dart'; |
| 7 | import 'package:cw_core/utils/tor/abstract.dart'; |
| 8 | import 'package:http/http.dart'; |
| 9 | import 'package:socks5_proxy/socks_client.dart'; |
| 10 | import 'package:http/io_client.dart' as ioc; |
| 11 | |
| 12 | class ProxyWrapper { |
| 13 | static final ProxyWrapper _proxyWrapper = ProxyWrapper._internal(); |
| 14 | static ProxyLogger? logger; |
| 15 | |
| 16 | factory ProxyWrapper() { |
| 17 | return _proxyWrapper; |
| 18 | } |
| 19 | |
| 20 | ProxyWrapper._internal(); |
| 21 | Future<ProxySocket> getSocksSocket(bool sslEnabled, String host, int port, |
| 22 | {Duration? connectionTimeout}) async { |
| 23 | logger?.log( |
| 24 | uri: Uri( |
| 25 | scheme: sslEnabled ? "https" : "http", |
| 26 | host: host, |
| 27 | port: port, |
| 28 | ), |
| 29 | method: RequestMethod.newProxySocket, |
| 30 | body: Uint8List(0), |
| 31 | response: null, |
| 32 | network: requestNetwork(), |
| 33 | error: null); |
| 34 | return ProxySocket.connect(sslEnabled, ProxyAddress(host: host, port: port), |
| 35 | connectionTimeout: connectionTimeout); |
| 36 | } |
| 37 | |
| 38 | RequestNetwork requestNetwork() { |
| 39 | return CakeTor.instance!.started ? RequestNetwork.tor : RequestNetwork.clearnet; |
| 40 | } |
| 41 | |
| 42 | ioc.IOClient getHttpIOClient({int? portOverride, bool internal = false}) { |
| 43 | if (!internal) { |
| 44 | logger?.log( |
| 45 | uri: null, |
| 46 | method: RequestMethod.newHttpIOClient, |
| 47 | body: Uint8List(0), |
| 48 | response: null, |
| 49 | network: requestNetwork(), |
| 50 | error: null, |
| 51 | ); |
| 52 | } |
| 53 | // ignore: deprecated_member_use_from_same_package |
| 54 | final httpClient = ProxyWrapper().getHttpClient(portOverride: portOverride, internal: true); |
| 55 | return ioc.IOClient(httpClient); |
| 56 | } |
| 57 | |
| 58 | int getPort() => CakeTor.instance!.port; |
| 59 | |
| 60 | @Deprecated( |
| 61 | 'Use ProxyWrapper().get/post/put methods instead, and provide proper clearnet and onion uri.') |
| 62 | HttpClient getHttpClient({int? portOverride, bool internal = false}) { |
| 63 | if (!internal) { |
| 64 | logger?.log( |
| 65 | uri: null, |
| 66 | method: RequestMethod.newProxySocket, |
| 67 | body: Uint8List(0), |
| 68 | response: null, |
| 69 | network: requestNetwork(), |
| 70 | error: null); |
| 71 | } |
| 72 | if (CakeTor.instance!.started) { |
| 73 | // Assign connection factory. |
| 74 | final client = HttpClient(); |
| 75 | SocksTCPClient.assignToHttpClient(client, [ |
| 76 | ProxySettings( |
| 77 | InternetAddress.loopbackIPv4, |
| 78 | CakeTor.instance!.port, |
| 79 | password: null, |
| 80 | ), |
| 81 | ]); |
| 82 | return client; |
| 83 | } else { |
| 84 | return HttpClient(); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | Future<Response> _make({ |
| 89 | required RequestMethod method, |
| 90 | required ioc.IOClient client, |
| 91 | required Uri uri, |
| 92 | required Map<String, String>? headers, |
| 93 | String? body, |
| 94 | }) async { |
| 95 | Object? error; |
| 96 | Response? resp; |
| 97 | try { |
| 98 | switch (method) { |
| 99 | case RequestMethod.get: |
| 100 | resp = await client.get( |
| 101 | uri, |
| 102 | headers: headers, |
| 103 | ); |
| 104 | break; |
| 105 | case RequestMethod.delete: |
| 106 | resp = await client.delete( |
| 107 | uri, |
| 108 | headers: headers, |
| 109 | body: body, |
| 110 | ); |
| 111 | break; |
| 112 | case RequestMethod.post: |
| 113 | resp = await client.post( |
| 114 | uri, |
| 115 | headers: headers, |
| 116 | body: body, |
| 117 | ); |
| 118 | break; |
| 119 | case RequestMethod.put: |
| 120 | resp = await client.put( |
| 121 | uri, |
| 122 | headers: headers, |
| 123 | body: body, |
| 124 | ); |
| 125 | break; |
| 126 | case RequestMethod.newHttpClient: |
| 127 | case RequestMethod.newHttpIOClient: |
| 128 | case RequestMethod.newProxySocket: |
| 129 | throw UnimplementedError(); |
| 130 | } |
| 131 | return resp; |
| 132 | } catch (e) { |
| 133 | error = e; |
| 134 | rethrow; |
| 135 | } finally { |
| 136 | logger?.log( |
| 137 | uri: uri, |
| 138 | method: RequestMethod.get, |
| 139 | body: utf8.encode(body ?? ''), |
| 140 | response: resp, |
| 141 | network: requestNetwork(), |
| 142 | error: error?.toString(), |
| 143 | ); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | Future<Response> get({ |
| 148 | Map<String, String>? headers, |
| 149 | int? portOverride, |
| 150 | Uri? clearnetUri, |
| 151 | Uri? onionUri, |
| 152 | }) async { |
| 153 | ioc.IOClient? torClient; |
| 154 | bool torEnabled = CakeTor.instance!.started; |
| 155 | |
| 156 | if (CakeTor.instance!.started) { |
| 157 | torEnabled = true; |
| 158 | } else { |
| 159 | torEnabled = false; |
| 160 | } |
| 161 | |
| 162 | // if tor is enabled, try to connect to the onion url first: |
| 163 | if (torEnabled) { |
| 164 | try { |
| 165 | // ignore: deprecated_member_use_from_same_package |
| 166 | torClient = await getHttpIOClient(portOverride: portOverride, internal: true); |
| 167 | } catch (_) { |
| 168 | rethrow; |
| 169 | } |
| 170 | |
| 171 | if (onionUri != null) { |
| 172 | try { |
| 173 | return await _make( |
| 174 | method: RequestMethod.get, |
| 175 | client: torClient, |
| 176 | uri: onionUri, |
| 177 | headers: headers, |
| 178 | ); |
| 179 | } catch (_) { |
| 180 | rethrow; |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | if (clearnetUri != null) { |
| 185 | try { |
| 186 | return await _make( |
| 187 | method: RequestMethod.get, |
| 188 | client: torClient, |
| 189 | uri: clearnetUri, |
| 190 | headers: headers, |
| 191 | ); |
| 192 | } catch (_) { |
| 193 | rethrow; |
| 194 | } |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | if (clearnetUri != null) { |
| 199 | try { |
| 200 | return HttpOverrides.runZoned( |
| 201 | () async { |
| 202 | return await _make( |
| 203 | method: RequestMethod.get, |
| 204 | client: ioc.IOClient(), |
| 205 | uri: clearnetUri, |
| 206 | headers: headers, |
| 207 | ); |
| 208 | }, |
| 209 | ); |
| 210 | } catch (_) { |
| 211 | // we weren't able to get a response: |
| 212 | rethrow; |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | throw Exception("Unable to connect to server"); |
| 217 | } |
| 218 | |
| 219 | Future<Response> post({ |
| 220 | Map<String, String>? headers, |
| 221 | int? portOverride, |
| 222 | Uri? clearnetUri, |
| 223 | Uri? onionUri, |
| 224 | String? body, |
| 225 | bool allowMitmMoneroBypassSSLCheck = false, |
| 226 | }) async { |
| 227 | HttpClient? torHttpClient; |
| 228 | HttpClient cleatnetHttpClient = HttpClient(); |
| 229 | if (allowMitmMoneroBypassSSLCheck) { |
| 230 | cleatnetHttpClient.badCertificateCallback = |
| 231 | ((X509Certificate cert, String host, int port) => true); |
| 232 | } |
| 233 | |
| 234 | ioc.IOClient clearnetClient = ioc.IOClient(cleatnetHttpClient); |
| 235 | |
| 236 | bool torEnabled = CakeTor.instance!.started; |
| 237 | |
| 238 | if (torEnabled) { |
| 239 | try { |
| 240 | // ignore: deprecated_member_use_from_same_package |
| 241 | torHttpClient = await getHttpClient(portOverride: portOverride); |
| 242 | } catch (_) { |
| 243 | rethrow; |
| 244 | } |
| 245 | if (allowMitmMoneroBypassSSLCheck) { |
| 246 | torHttpClient.badCertificateCallback = |
| 247 | ((X509Certificate cert, String host, int port) => true); |
| 248 | } |
| 249 | if (onionUri != null) { |
| 250 | try { |
| 251 | return await _make( |
| 252 | method: RequestMethod.post, |
| 253 | client: ioc.IOClient(torHttpClient), |
| 254 | uri: onionUri, |
| 255 | headers: headers, |
| 256 | body: body, |
| 257 | ); |
| 258 | } catch (_) { |
| 259 | rethrow; |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | if (clearnetUri != null) { |
| 264 | try { |
| 265 | return await _make( |
| 266 | method: RequestMethod.post, |
| 267 | client: ioc.IOClient(torHttpClient), |
| 268 | uri: clearnetUri, |
| 269 | headers: headers, |
| 270 | body: body, |
| 271 | ); |
| 272 | } catch (_) { |
| 273 | rethrow; |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | if (clearnetUri != null) { |
| 279 | try { |
| 280 | return HttpOverrides.runZoned( |
| 281 | () async { |
| 282 | return await _make( |
| 283 | method: RequestMethod.post, |
| 284 | client: clearnetClient, |
| 285 | uri: clearnetUri, |
| 286 | headers: headers, |
| 287 | body: body, |
| 288 | ); |
| 289 | }, |
| 290 | ); |
| 291 | } catch (_) { |
| 292 | rethrow; |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | throw Exception("Unable to connect to server"); |
| 297 | } |
| 298 | |
| 299 | Future<Response> put({ |
| 300 | Map<String, String>? headers, |
| 301 | int? portOverride, |
| 302 | Uri? clearnetUri, |
| 303 | Uri? onionUri, |
| 304 | String? body, |
| 305 | }) async { |
| 306 | ioc.IOClient? torClient; |
| 307 | bool torEnabled = CakeTor.instance!.started; |
| 308 | |
| 309 | if (torEnabled) { |
| 310 | try { |
| 311 | // ignore: deprecated_member_use_from_same_package |
| 312 | torClient = await getHttpIOClient(portOverride: portOverride, internal: true); |
| 313 | } catch (_) {} |
| 314 | |
| 315 | if (onionUri != null) { |
| 316 | try { |
| 317 | return await _make( |
| 318 | method: RequestMethod.put, |
| 319 | client: torClient!, |
| 320 | uri: onionUri, |
| 321 | headers: headers, |
| 322 | body: body, |
| 323 | ); |
| 324 | } catch (_) { |
| 325 | rethrow; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | if (clearnetUri != null) { |
| 330 | try { |
| 331 | return await _make( |
| 332 | method: RequestMethod.put, |
| 333 | client: torClient!, |
| 334 | uri: clearnetUri, |
| 335 | headers: headers, |
| 336 | body: body, |
| 337 | ); |
| 338 | } catch (_) { |
| 339 | rethrow; |
| 340 | } |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | if (clearnetUri != null) { |
| 345 | try { |
| 346 | return HttpOverrides.runZoned( |
| 347 | () async { |
| 348 | return await _make( |
| 349 | method: RequestMethod.put, |
| 350 | client: ioc.IOClient(), |
| 351 | uri: clearnetUri, |
| 352 | headers: headers, |
| 353 | body: body, |
| 354 | ); |
| 355 | }, |
| 356 | ); |
| 357 | } catch (_) { |
| 358 | // we weren't able to get a response: |
| 359 | rethrow; |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | throw Exception("Unable to connect to server"); |
| 364 | } |
| 365 | |
| 366 | Future<Response> delete({ |
| 367 | Map<String, String>? headers, |
| 368 | int? portOverride, |
| 369 | Uri? clearnetUri, |
| 370 | Uri? onionUri, |
| 371 | }) async { |
| 372 | ioc.IOClient? torClient; |
| 373 | bool torEnabled = CakeTor.instance!.started; |
| 374 | |
| 375 | if (CakeTor.instance!.started) { |
| 376 | torEnabled = true; |
| 377 | } else { |
| 378 | torEnabled = false; |
| 379 | } |
| 380 | |
| 381 | // if tor is enabled, try to connect to the onion url first: |
| 382 | if (torEnabled) { |
| 383 | try { |
| 384 | // ignore: deprecated_member_use_from_same_package |
| 385 | torClient = await getHttpIOClient(portOverride: portOverride, internal: true); |
| 386 | } catch (_) { |
| 387 | rethrow; |
| 388 | } |
| 389 | |
| 390 | if (onionUri != null) { |
| 391 | try { |
| 392 | return await _make( |
| 393 | method: RequestMethod.delete, |
| 394 | client: torClient, |
| 395 | uri: onionUri, |
| 396 | headers: headers, |
| 397 | ); |
| 398 | } catch (_) { |
| 399 | rethrow; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | if (clearnetUri != null) { |
| 404 | try { |
| 405 | return await _make( |
| 406 | method: RequestMethod.delete, |
| 407 | client: torClient, |
| 408 | uri: clearnetUri, |
| 409 | headers: headers, |
| 410 | ); |
| 411 | } catch (_) { |
| 412 | rethrow; |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | if (clearnetUri != null) { |
| 418 | try { |
| 419 | return HttpOverrides.runZoned( |
| 420 | () async { |
| 421 | return await _make( |
| 422 | method: RequestMethod.delete, |
| 423 | client: ioc.IOClient(), |
| 424 | uri: clearnetUri, |
| 425 | headers: headers, |
| 426 | ); |
| 427 | }, |
| 428 | ); |
| 429 | } catch (_) { |
| 430 | // we weren't able to get a response: |
| 431 | rethrow; |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | throw Exception("Unable to connect to server"); |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | class CakeTor { |
| 440 | static CakeTorInstance? instance; |
| 441 | } |