openhim-core

<!doctype html> <html lang="en"> <head> <title>Code coverage report for src/middleware/rewriteUrls.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> rewriteUrls.coffee </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 28% Statements 14/50 </div> <div class='fl pad1y space-right2'> 0% Branches 0/8 </div> <div class='fl pad1y space-right2'> 0% Functions 0/8 </div> <div class='fl pad1y space-right2'> 28.57% Lines 14/49 </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</td><td class="line-coverage quiet">1x 1x 1x   1x 1x 1x 1x 1x   1x       1x                                                                                                                   1x                                                                                                         1x 1x   1x                </td><td class="text"><pre class="prettyprint lang-js">url = require 'url' winston = require 'winston' Q = require 'q'   Channel = (require '../../lib/model/channels').Channel config = require '../config/config' routerConf = config.get 'router' utils = require '../../lib/utils' router = require '../../lib/middleware/router'   invertPathTransform = (pathTransform) -> # see https://regex101.com/r/lW0cN0/1 for an explanation of this regex return pathTransform.replace /s\/(.*?)\/(.*?)(?:$|\/(.*)$)/, 's/$2/$1/$3'   exports.fetchRewriteConfig = (channel, authType, callback) -> # set the user defined rewrite config from current channel rwConfig = [] if channel.rewriteUrlsConfig? rwConfig = rwConfig.concat channel.rewriteUrlsConfig   if channel.addAutoRewriteRules ### # Add in default (virtual) rewrite rules for hosts we proxy # # For example if the SHR for some reason sent back a link to a patient in the CR # (using a direct link to the CR), then if we have a channel that points to the # CR on a primary route we are able to rewrite the link to point to us instead # because we know that host. ### utils.getAllChannelsInPriorityOrder (err, channels) -> if err? return callback err   for channel in channels for route in channel.routes do -> if route.primary ### # if this channel has a pathTranform on its primary route then # invert the path transform so that links that point to this route # have the path transform reversed when they are rewritten # # For example, say we have a channel with urlPattern=/CSD/ and a # pathTransform on the primary route as follows pathTransform=s/CSD/ihris/ # (ie. the actual server we are proxying is running on http://<host>:<port>/ihirs/). # If we get links back from this server it will be something like # http://<host>:<port>/ihirs/something/123 but we need it to be # http://<him_host>:<him_port>/CSD/something/123. To do this we can reverse # the pathTransform on the route (s/ihris/CSD/) and apply it while doing the # rewrite. ### if route.pathTransform inverseTransform = invertPathTransform route.pathTransform   # rewrite to the secure port if tls was used for this transaction if authType? is 'tls' toPort = routerConf.httpsPort else toPort = routerConf.httpPort   # add 'virtual' rewrite config after any user defined config that has been set rwConfig.push 'fromHost': route.host 'toHost': routerConf.externalHostname 'fromPort': route.port 'toPort': toPort 'pathTransform': if inverseTransform then inverseTransform else null   callback null, rwConfig else callback null, rwConfig   rewriteUrls = (body, channel, authType, callback) -> exports.fetchRewriteConfig channel, authType, (err, rwConfig) -> if err? return callback err   # rewrite each found href, src or fullUrl attribute (in JSON or XML) # See https://regex101.com/r/uY3fO1/1 for an explanation of this regex newBody = body.replace /["|']?(?:href|src|fullUrl)["|']?[:|=]\s?["|'](\S*?)["|']/g, (match, hrefUrl) -> hrefUrlObj = url.parse hrefUrl   # default to using this channel's host if no host so we can match a rewrite rule if not hrefUrlObj.host? for route in channel.routes if route.primary hrefUrlObj.hostname = route.host hrefUrlObj.port = route.port.toString() relativePath = true break   for rewriteRule in rwConfig # if we find a matching rewrite rule if rewriteRule.fromHost.toLowerCase() is hrefUrlObj.hostname and (rewriteRule.fromPort.toString() is hrefUrlObj.port or (rewriteRule.fromPort is 80 and hrefUrlObj.port is null)) hrefUrlObj.host = null # so that hostname and port are used separately hrefUrlObj.hostname = rewriteRule.toHost hrefUrlObj.port = rewriteRule.toPort   # rewrite protocol depending on the port the rewriteRule uses if hrefUrlObj.protocol if rewriteRule.toPort is routerConf.httpsPort hrefUrlObj.protocol = 'https' else hrefUrlObj.protocol = 'http'   # if this rewrite rule requires the path to be transformed then do the transform if rewriteRule.pathTransform hrefUrlObj.pathname = router.transformPath hrefUrlObj.pathname, rewriteRule.pathTransform   # we only run the first matching rule found break   if relativePath # remove the host stuff before formating hrefUrlObj.host = null hrefUrlObj.hostname = null hrefUrlObj.port = null   # replace the url in the match replacement = url.format hrefUrlObj winston.debug "Rewriting url #{hrefUrl} as #{replacement}" return match.replace hrefUrl, replacement   callback null, newBody   if process.env.NODE_ENV is 'test' exports.invertPathTransform = invertPathTransform exports.rewriteUrls = rewriteUrls   exports.koaMiddleware = (next) -> # do nothing to the request yield next # on response rewrite urls if this.authorisedChannel.rewriteUrls rewrite = Q.denodeify rewriteUrls this.response.body = yield rewrite this.response.body.toString(), this.authorisedChannel, this.authenticationType winston.info "Rewrote url in the response of transaction: #{this.transactionId}"  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Oct 10 2016 13:39:22 GMT+0200 (SAST) </div> </div> <script src="../../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../../sorter.js"></script> </body> </html>