1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 | 1 1 487 132 355 355 1 598 598 598 598 598 598 598 598 4 4 4 1 376 376 1 476 476 476 49 476 476 4 4 472 161 161 154 161 1 452 452 452 452 452 452 452 164 164 164 164 376 376 452 8 452 227 452 452 15 452 452 3634 3634 3425 30 3425 3634 3634 3634 3634 452 236 236 227 227 227 227 236 452 4 4 4 4 4 4 4 4 4 4 4 452 497 65 65 65 497 497 452 22 22 452 227 227 227 227 227 227 227 3 224 227 227 264 264 227 15 15 19 15 12 12 15 15 15 15 212 212 212 212 212 212 212 3 3 3 3 3 1 2 3 3 209 209 209 209 209 20 4 16 189 5 5 5 1 5 17 184 184 2 2 2 1 205 1 209 209 209 1 1 209 164 164 3 3 164 3 3 164 13 13 13 14 13 13 13 151 148 147 1 1 209 209 209 209 209 209 209 163 163 3 209 142 142 3 209 1 209 209 2 209 7 202 1 209 206 206 206 206 206 13 13 193 193 157 157 193 360 360 167 167 167 193 193 193 452 1 | 'use strict'; var EventEmitter = require('events').EventEmitter, http = require('http'), propagate = require('propagate'), DelayedBody = require('./delayed_body'), IncomingMessage = http.IncomingMessage, ClientRequest = http.ClientRequest, common = require('./common'), Socket = require('./socket'), _ = require('lodash'), debug = require('debug')('nock.request_overrider'), timers = require('timers'), ReadableStream = require('stream').Readable, globalEmitter = require('./global_emitter'); function getHeader(request, name) { if (!request._headers) { return; } var key = name.toLowerCase(); return request._headers[key]; } function setHeader(request, name, value) { debug('setHeader', name, value); var key = name.toLowerCase(); request._headers = request._headers || {}; request._headerNames = request._headerNames || {}; request._removedHeader = request._removedHeader || {}; request._headers[key] = value; request._headerNames[key] = name; if (name == 'expect' && value == '100-continue') { timers.setImmediate(function() { debug('continue'); request.emit('continue'); }); } } function isStream(obj) { var is = obj && (typeof obj !== 'string') && (!Buffer.isBuffer(obj)) && (typeof obj.setEncoding === 'function'); return is; } // Sets request headers of the given request. This is needed during both matching phase // (in case header filters were specified) and mocking phase (to correctly pass mocked // request headers). function setRequestHeaders(req, options, interceptor) { // We mock request headers if these were specified. Eif (interceptor.reqheaders) { var reqheaders = interceptor.reqheaders; _(interceptor.reqheaders).keys().each(function(key) { setHeader(req, key, reqheaders[key]); }); } // If a filtered scope is being used we have to use scope's host // in the header, otherwise 'host' header won't match. // NOTE: We use lower-case header field names throught Nock. var HOST_HEADER = 'host'; if(interceptor.__nock_filteredScope && interceptor.__nock_scopeHost) { Iif(options && options.headers) { options.headers[HOST_HEADER] = interceptor.__nock_scopeHost; } setHeader(req, HOST_HEADER, interceptor.__nock_scopeHost); } else { // For all other cases, we always add host header equal to the // requested host unless it was already defined. if (options.host && !getHeader(req, HOST_HEADER)) { var hostHeader = options.host; if (options.port === 80 || options.port === 443) { hostHeader = hostHeader.split(':')[0]; } setHeader(req, HOST_HEADER, hostHeader); } } } function RequestOverrider(req, options, interceptors, remove, cb) { var response; Eif (IncomingMessage) { response = new IncomingMessage(new EventEmitter()); } else { response = new ReadableStream(); response._read = function() {}; } var requestBodyBuffers = [], originalInterceptors = interceptors, aborted, emitError, end, ended, headers, keys, key, i, l; // We may be changing the options object and we don't want those // changes affecting the user so we use a clone of the object. options = _.clone(options) || {}; response.req = req; if (options.headers) { // We use lower-case header field names throught Nock. options.headers = common.headersFieldNamesToLowerCase(options.headers); headers = options.headers; keys = Object.keys(headers); for (i = 0, l = keys.length; i < l; i++) { key = keys[i]; setHeader(req, key, headers[key]); } } /// options.auth if (options.auth && (! options.headers || ! options.headers.authorization)) { setHeader(req, 'Authorization', 'Basic ' + (new Buffer(options.auth)).toString('base64')); } if (! req.connection) { req.connection = new EventEmitter(); } req.path = options.path; options.getHeader = function(name) { return getHeader(req, name); }; req.socket = response.socket = Socket({ proto: options.proto }); req.write = function(buffer, encoding) { debug('write', arguments); if (buffer && !aborted) { if (! Buffer.isBuffer(buffer)) { buffer = new Buffer(buffer, encoding); } requestBodyBuffers.push(buffer); } Iif (aborted) { emitError(new Error('Request aborted')); } timers.setImmediate(function() { req.emit('drain'); }); return false; }; req.end = function(buffer, encoding) { debug('req.end'); if (!aborted && !ended) { req.write(buffer, encoding); end(cb); req.emit('finish'); req.emit('end'); } Iif (aborted) { emitError(new Error('Request aborted')); } }; req.abort = function() { debug('req.abort'); aborted = true; Iif (!ended) { end(); } var err = new Error(); err.code = 'aborted'; response.emit('close', err); req.socket.destroy(); req.emit('abort'); var connResetError = new Error('socket hang up'); connResetError.code = 'ECONNRESET'; emitError(connResetError); }; // restify listens for a 'socket' event to // be emitted before calling end(), which causes // nock to hang with restify. The following logic // fakes the socket behavior for restify, // Fixes: https://github.com/pgte/nock/issues/79 req.once = req.on = function(event, listener) { // emit a fake socket. if (event == 'socket') { listener(req.socket); req.socket.emit('connect', req.socket); req.socket.emit('secureConnect', req.socket); } EventEmitter.prototype.on.call(this, event, listener); return this; }; emitError = function(error) { process.nextTick(function () { req.emit('error', error); }); }; end = function(cb) { debug('ending'); ended = true; var requestBody, responseBody, responseBuffers, interceptor; var continued = false; // When request body is a binary buffer we internally use in its hexadecimal representation. var requestBodyBuffer = common.mergeChunks(requestBodyBuffers); var isBinaryRequestBodyBuffer = common.isBinaryBuffer(requestBodyBuffer); if(isBinaryRequestBodyBuffer) { requestBody = requestBodyBuffer.toString('hex'); } else { requestBody = requestBodyBuffer.toString('utf8'); } /// put back the path into options /// because bad behaving agents like superagent /// like to change request.path in mid-flight. options.path = req.path; interceptors = interceptors.filter(function(interceptor) { // For correct matching we need to have correct request headers - if these were specified. setRequestHeaders(req, options, interceptor); return interceptor.match(options, requestBody); }); if (interceptors.length < 1) { globalEmitter.emit('no match', req, options, requestBody); // Try to find a hostname match interceptors = originalInterceptors.filter(function(interceptor) { return interceptor.match(options, requestBody, true); }); if (interceptors.length && req instanceof ClientRequest) { interceptor = interceptors[0]; Iif (interceptor.options.allowUnmocked) { var newReq = new ClientRequest(options, cb); propagate(newReq, req); // We send the raw buffer as we received it, not as we interpreted it. newReq.end(requestBodyBuffer); return; } } var err = new Error("Nock: No match for request " + common.stringifyRequest(options, requestBody)); err.statusCode = err.status = 404; emitError(err); return; } debug('interceptor identified, starting mocking'); interceptor = interceptors.shift(); // We again set request headers, now for our matched interceptor. setRequestHeaders(req, options, interceptor); interceptor.req = req; req.headers = req._headers; interceptor.scope.emit('request', req, interceptor); if (typeof interceptor.errorMessage !== 'undefined') { interceptor.interceptionCounter++; remove(interceptor); interceptor.discard(); var error; if (_.isObject(interceptor.errorMessage)) { error = interceptor.errorMessage; } else { error = new Error(interceptor.errorMessage); } timers.setTimeout(emitError, interceptor.delayInMs || 0, error); return; } response.statusCode = Number(interceptor.statusCode) || 200; response.headers = interceptor.headers || {}; response.rawHeaders = interceptor.rawHeaders || []; debug('response.rawHeaders:', response.rawHeaders); if (typeof interceptor.body === 'function') { // In case we are waiting for a callback if (interceptor.body.length === 3) { return interceptor.body(options.path, requestBody || '', continueWithResponseBody); } responseBody = interceptor.body(options.path, requestBody) || ''; } else { // If the content is encoded we know that the response body *must* be an array // of response buffers which should be mocked one by one. // (otherwise decompressions after the first one fails as unzip expects to receive // buffer by buffer and not one single merged buffer) if(common.isContentEncoded(response.headers) && ! isStream(interceptor.body)) { Iif (interceptor.delayInMs) { emitError(new Error('Response delay is currently not supported with content-encoded responses.')); return; } var buffers = interceptor.body; if(!_.isArray(buffers)) { buffers = [buffers]; } responseBuffers = _.map(buffers, function(buffer) { return new Buffer(buffer, 'hex'); }); } else { responseBody = interceptor.body; // If the request was binary then we assume that the response will be binary as well. // In that case we send the response as a Buffer object as that's what the client will expect. if(isBinaryRequestBodyBuffer && typeof(responseBody) === 'string') { // Try to create the buffer from the interceptor's body response as hex. try { responseBody = new Buffer(responseBody, 'hex'); } catch(err) { debug('exception during Buffer construction from hex data:', responseBody, '-', err); } // Creating buffers does not necessarily throw errors, check for difference in size if (!responseBody || (interceptor.body.length > 0 && responseBody.length === 0)) { // We fallback on constructing buffer from utf8 representation of the body. responseBody = new Buffer(interceptor.body, 'utf8'); } } } } return continueWithResponseBody(null, responseBody); function continueWithResponseBody(err, responseBody) { Iif (continued) { return; } continued = true; if (err) { response.statusCode = 500; responseBody = err.stack; } // Transform the response body if it exists (it may not exist // if we have `responseBuffers` instead) if (responseBody) { debug('transform the response body'); if (Array.isArray(responseBody) && responseBody.length == 2 && typeof responseBody[0] == 'number') { response.statusCode = Number(responseBody[0]); responseBody = responseBody[1]; } if (interceptor.delayInMs) { debug('delaying the response for', interceptor.delayInMs, 'milliseconds'); responseBody = new DelayedBody(interceptor.delayInMs, responseBody); } if (isStream(responseBody)) { debug('response body is a stream'); responseBody.pause(); responseBody.on('data', function(d) { response.push(d); }); responseBody.on('end', function() { response.push(null); }); responseBody.on('error', function(err) { response.emit('error', err); }); } else if (responseBody && !Buffer.isBuffer(responseBody)) { if (typeof responseBody === 'string') { responseBody = new Buffer(responseBody); } else { responseBody = JSON.stringify(responseBody); response.headers['content-type'] = 'application/json'; } } } interceptor.interceptionCounter++; remove(interceptor); interceptor.discard(); Iif (aborted) { return; } /// response.client.authorized = true /// fixes https://github.com/pgte/nock/issues/158 response.client = _.extend(response.client || {}, { authorized: true }); // Account for updates to Node.js response interface // cf https://github.com/request/request/pull/1615 response.socket = _.extend(response.socket || {}, { authorized: true }); // Evaluate functional headers. Object.keys(response.headers).forEach(function (key) { var value = response.headers[key]; if (typeof value === "function") { response.headers[key] = value(req, response, responseBody); } }); for(var rawHeaderIndex = 0 ; rawHeaderIndex < response.rawHeaders.length ; rawHeaderIndex += 2) { var value = response.rawHeaders[rawHeaderIndex + 1]; if (typeof value === "function") { response.rawHeaders[rawHeaderIndex + 1] = value(req, response, responseBody); } } process.nextTick(respond); function respond() { Iif (aborted) { return; } if (interceptor.socketDelayInMs && interceptor.socketDelayInMs > 0) { req.socket._checkTimeout(interceptor.socketDelayInMs); } if (interceptor.delayConnectionInMs && interceptor.delayConnectionInMs > 0) { setTimeout(_respond, interceptor.delayConnectionInMs); } else { _respond(); } function _respond() { if (aborted) { return; } debug('emitting response'); Iif (typeof cb === 'function') { debug('callback with response'); cb(response); } Iif (aborted) { emitError(new Error('Request aborted')); } else { req.emit('response', response); } if (isStream(responseBody)) { debug('resuming response stream'); responseBody.resume(); } else { responseBuffers = responseBuffers || []; if (typeof responseBody !== "undefined") { debug('adding body to buffer list'); responseBuffers.push(responseBody); } // Stream the response chunks one at a time. timers.setImmediate(function emitChunk() { var chunk = responseBuffers.shift(); if (chunk) { debug('emitting response chunk'); response.push(chunk); timers.setImmediate(emitChunk); } else { debug('ending response stream'); response.push(null); interceptor.scope.emit('replied', req, interceptor); } }); } } } } }; return req; } module.exports = RequestOverrider; |