openhim-core

<!doctype html> <html lang="en"> <head> <title>Code coverage report for src/middleware/router.coffee</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../prettify.css" /> <link rel="stylesheet" href="../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../index.html">All files</a> / <a href="index.html">src/middleware</a> router.coffee </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 19.23% Statements 40/208 </div> <div class='fl pad1y space-right2'> 0% Branches 0/71 </div> <div class='fl pad1y space-right2'> 0% Functions 0/45 </div> <div class='fl pad1y space-right2'> 19.61% Lines 40/204 </div> </div> </div> <div class='status-line low'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">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</td><td class="line-coverage quiet">1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x   1x 1x     1x   1x           1x     1x                                                                           1x   1x                               1x                                     1x                                                                                                                                                                                                                                           1x                                                                     1x               1x                               1x                                                                                                                                                                     1x                                                                                                         1x                                 1x                                                         1x                   1x            </td><td class="text"><pre class="prettyprint lang-js">util = require 'util' zlib = require 'zlib' http = require 'http' https = require 'https' net = require 'net' tls = require 'tls' Q = require 'q' config = require '../config/config' config.mongo = config.get 'mongo' config.router = config.get 'router' logger = require 'winston' cookie = require 'cookie' fs = require 'fs' utils = require '../utils' messageStore = require '../middleware/messageStore' events = require '../middleware/events' stats = require "../stats" statsdServer = config.get 'statsd' application = config.get 'application' SDC = require 'statsd-client' os = require 'os'   domain = "#{os.hostname()}.#{application.name}.appMetrics" sdc = new SDC statsdServer     isRouteEnabled = (route) -> not route.status? or route.status is 'enabled'   exports.numberOfPrimaryRoutes = numberOfPrimaryRoutes = (routes) -> numPrimaries = 0 for route in routes numPrimaries++ if isRouteEnabled(route) and route.primary return numPrimaries   containsMultiplePrimaries = (routes) -> numberOfPrimaryRoutes(routes) > 1     setKoaResponse = (ctx, response) ->   # Try and parse the status to an int if it is a string if typeof response.status is 'string' try response.status = parseInt response.status catch err logger.error err   ctx.response.status = response.status ctx.response.timestamp = response.timestamp ctx.response.body = response.body   if not ctx.response.header ctx.response.header = {}   if ctx.request?.header?["X-OpenHIM-TransactionID"] if response?.headers? response.headers["X-OpenHIM-TransactionID"] = ctx.request.header["X-OpenHIM-TransactionID"]   for key, value of response.headers switch key.toLowerCase() when 'set-cookie' then setCookiesOnContext ctx, value when 'location' if response.status >= 300 and response.status < 400 ctx.response.redirect value else ctx.response.set key, value when 'content-type' then ctx.response.type = value else try # Strip the content and transfer encoding headers if key != 'content-encoding' and key != 'transfer-encoding' ctx.response.set key, value catch err logger.error err   if process.env.NODE_ENV == "test" exports.setKoaResponse = setKoaResponse   setCookiesOnContext = (ctx, value) -> logger.info 'Setting cookies on context' for c_key,c_value in value c_opts = {path:false,httpOnly:false} #clear out default values in cookie module c_vals = {} for p_key,p_val of cookie.parse c_key p_key_l = p_key.toLowerCase() switch p_key_l when 'max-age' then c_opts['maxage'] = parseInt p_val, 10 when 'expires' then c_opts['expires'] = new Date p_val when 'path','domain','secure','signed','overwrite' then c_opts[p_key_l] = p_val when 'httponly' then c_opts['httpOnly'] = p_val else c_vals[p_key] = p_val for p_key,p_val of c_vals ctx.cookies.set p_key,p_val,c_opts   handleServerError = (ctx, err, route) -> ctx.autoRetry = true if route route.error = message: err.message stack: err.stack if err.stack else ctx.response.status = 500 ctx.response.timestamp = new Date() ctx.response.body = "An internal server error occurred" # primary route error ctx.error = message: err.message stack: err.stack if err.stack   logger.error "[#{ctx.transactionId?.toString()}] Internal server error occured: #{err}" logger.error "#{err.stack}" if err.stack     sendRequestToRoutes = (ctx, routes, next) -> promises = [] promise = {} ctx.timer = new Date   if containsMultiplePrimaries routes return next new Error "Cannot route transaction: Channel contains multiple primary routes and only one primary is allowed"   utils.getKeystore (err, keystore) ->   for route in routes do (route) -> if not isRouteEnabled route then return #continue   path = getDestinationPath route, ctx.path options = hostname: route.host port: route.port path: path method: ctx.request.method headers: ctx.request.header agent: false rejectUnauthorized: true key: keystore.key cert: keystore.cert.data secureProtocol: 'TLSv1_method'   if route.cert? options.ca = keystore.ca.id(route.cert).data   if ctx.request.querystring options.path += '?' + ctx.request.querystring   if options.headers and options.headers.authorization and not route.forwardAuthHeader delete options.headers.authorization   if route.username and route.password options.auth = route.username + ":" + route.password   if options.headers && options.headers.host delete options.headers.host   if route.primary ctx.primaryRoute = route promise = sendRequest(ctx, route, options) .then (response) -> logger.info "executing primary route : #{route.name}" if response.headers?['content-type']?.indexOf('application/json+openhim') > -1 # handle mediator reponse responseObj = JSON.parse response.body ctx.mediatorResponse = responseObj   if responseObj.error? ctx.autoRetry = true ctx.error = responseObj.error   # then set koa response from responseObj.response setKoaResponse ctx, responseObj.response else setKoaResponse ctx, response .then -> logger.info "primary route completed" next()   .fail (reason) -> # on failure handleServerError ctx, reason next() else logger.info "executing non primary: #{route.name}" promise = buildNonPrimarySendRequestPromise(ctx, route, options, path) .then (routeObj) -> logger.info "Storing non primary route responses #{route.name}"   try if not routeObj?.name? routeObj = name: route.name   if not routeObj?.response? routeObj.response = status: 500 timestamp: ctx.requestTimestamp   if not routeObj?.request? routeObj.request = host: options.hostname port: options.port path: path headers: ctx.request.header querystring: ctx.request.querystring method: ctx.request.method timestamp: ctx.requestTimestamp   messageStore.storeNonPrimaryResponse ctx, routeObj, -> stats.nonPrimaryRouteRequestCount ctx, routeObj, -> stats.nonPrimaryRouteDurations ctx, routeObj, ->   catch err logger.error err     promises.push promise   (Q.all promises).then -> messageStore.setFinalStatus ctx, -> logger.info "All routes completed for transaction: #{ctx.transactionId.toString()}" if ctx.routes logger.debug "Storing route events for transaction: #{ctx.transactionId}"   done = (err) -> logger.error err if err trxEvents = []   events.createSecondaryRouteEvents trxEvents, ctx.transactionId, ctx.requestTimestamp, ctx.authorisedChannel, ctx.routes, ctx.currentAttempt events.saveEvents trxEvents, done     # function to build fresh promise for transactions routes buildNonPrimarySendRequestPromise = (ctx, route, options, path) -> sendRequest ctx, route, options .then (response) -> routeObj = {} routeObj.name = route.name routeObj.request = host: options.hostname port: options.port path: path headers: ctx.request.header querystring: ctx.request.querystring method: ctx.request.method timestamp: ctx.requestTimestamp   if response.headers?['content-type']?.indexOf('application/json+openhim') > -1 # handle mediator reponse responseObj = JSON.parse response.body routeObj.mediatorURN = responseObj['x-mediator-urn'] routeObj.orchestrations = responseObj.orchestrations routeObj.properties = responseObj.properties routeObj.metrics = responseObj.metrics if responseObj.metrics routeObj.response = responseObj.response else routeObj.response = response   ctx.routes = [] if not ctx.routes ctx.routes.push routeObj return routeObj .fail (reason) -> # on failure routeObj = {} routeObj.name = route.name handleServerError ctx, reason, routeObj return routeObj   sendRequest = (ctx, route, options) -> if route.type is 'tcp' or route.type is 'mllp' logger.info 'Routing socket request' return sendSocketRequest ctx, route, options else logger.info 'Routing http(s) request' return sendHttpRequest ctx, route, options   obtainCharset = (headers) -> contentType = headers['content-type'] || '' matches = contentType.match(/charset=([^;,\r\n]+)/i) if (matches && matches[1]) return matches[1] return 'utf-8'   ### # A promise returning function that send a request to the given route and resolves # the returned promise with a response object of the following form: # response = # status: <http_status code> # body: <http body> # headers: <http_headers_object> # timestamp: <the time the response was recieved> ### sendHttpRequest = (ctx, route, options) -> defered = Q.defer() response = {}   gunzip = zlib.createGunzip() inflate = zlib.createInflate()   method = http   if route.secured method = https   routeReq = method.request options, (routeRes) -> response.status = routeRes.statusCode response.headers = routeRes.headers   uncompressedBodyBufs = [] if routeRes.headers['content-encoding'] == 'gzip' #attempt to gunzip routeRes.pipe gunzip   gunzip.on "data", (data) -> uncompressedBodyBufs.push data return   if routeRes.headers['content-encoding'] == 'deflate' #attempt to inflate routeRes.pipe inflate   inflate.on "data", (data) -> uncompressedBodyBufs.push data return   bufs = [] routeRes.on "data", (chunk) -> bufs.push chunk   # See https://www.exratione.com/2014/07/nodejs-handling-uncertain-http-response-compression/ routeRes.on "end", -> response.timestamp = new Date() charset = obtainCharset(routeRes.headers) if routeRes.headers['content-encoding'] == 'gzip' gunzip.on "end", -> uncompressedBody = Buffer.concat uncompressedBodyBufs response.body = uncompressedBody.toString charset if not defered.promise.isRejected() defered.resolve response return   else if routeRes.headers['content-encoding'] == 'deflate' inflate.on "end", -> uncompressedBody = Buffer.concat uncompressedBodyBufs response.body = uncompressedBody.toString charset if not defered.promise.isRejected() defered.resolve response return   else response.body = Buffer.concat bufs if not defered.promise.isRejected() defered.resolve response   routeReq.on "error", (err) -> defered.reject err   routeReq.on "clientError", (err) -> defered.reject err   routeReq.setTimeout config.router.timeout, -> defered.reject "Request Timed Out"   if ctx.request.method == "POST" || ctx.request.method == "PUT" <span class="cstat-no" title="state