139 lines
3.8 KiB
JavaScript
139 lines
3.8 KiB
JavaScript
var url = require("url");
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module.exports.rewriteLinks = function (userServer) {
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var host = userServer.hostname;
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var string = host;
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var port = userServer.port;
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if (host && port) {
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if (parseInt(port, 10) !== 80) {
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string = host + ":" + port;
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}
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}
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return {
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match: new RegExp("https?:\\\\/\\\\/" + string + "|('|\")\\\/\\\/" + string + "|https?://" + string + "(\/)?|('|\")(https?://|/|\\.)?" + string + "(\/)?(.*?)(?=[ ,'\"\\s])", "g"),
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//match: new RegExp("https?:\\\\/\\\\/" + string + "|https?://" + string + "(\/)?|('|\")(https?://|/|\\.)?" + string + "(\/)?(.*?)(?=[ ,'\"\\s])", "g"),
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//match: new RegExp("https?:\\\\?/\\\\?/" + string + "(\/)?|('|\")(https?://|\\\\?/|\\.)?" + string + "(\/)?(.*?)(?=[ ,'\"\\s])", "g"),
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//match: new RegExp('https?://' + string + '(\/)?|(\'|")(https?://|/|\\.)?' + string + '(\/)?(.*?)(?=[ ,\'"\\s])', 'g'),
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//match: new RegExp("https?:\\\\/\\\\/" + string, "g"),
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fn: function (req, res, match) {
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var proxyUrl = req.headers["host"];
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/**
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* Reject subdomains
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*/
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if (match[0] === ".") {
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return match;
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}
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var captured = match[0] === "'" || match[0] === "\"" ? match[0] : "";
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/**
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* allow http https
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* @type {string}
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*/
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var pre = "//";
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if (match[0] === "'" || match[0] === "\"") {
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match = match.slice(1);
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}
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/**
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* parse the url
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* @type {number|*}
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*/
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var out = url.parse(match);
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/**
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* If host not set, just do a simple replace
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*/
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if (!out.host) {
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string = string.replace(/^(\/)/, "");
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return captured + match.replace(string, proxyUrl);
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}
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/**
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* Only add trailing slash if one was
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* present in the original match
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*/
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if (out.path === "/") {
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if (match.slice(-1) === "/") {
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out.path = "/";
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} else {
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out.path = "";
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}
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}
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/**
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* Finally append all of parsed url
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*/
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return [
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captured,
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pre,
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proxyUrl,
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out.path || "",
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out.hash || ""
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].join("");
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}
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};
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};
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/**
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* Remove 'domain' from any cookies
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* @param {Object} res
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*/
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module.exports.checkCookies = function checkCookies (res) {
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if (typeof(res.headers["set-cookie"]) !== "undefined") {
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res.headers["set-cookie"] = res.headers["set-cookie"].map(function (item) {
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return rewriteCookies(item);
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});
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}
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};
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/**
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* Remove the domain from any cookies.
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* @param rawCookie
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* @returns {string}
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*/
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function rewriteCookies (rawCookie) {
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var objCookie = (function () {
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// simple parse function (does not remove quotes)
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var obj = {};
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var pairs = rawCookie.split(/; */);
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pairs.forEach( function( pair ) {
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var eqIndex = pair.indexOf("=");
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// skip things that don't look like key=value
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if (eqIndex < 0) {
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return;
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}
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var key = pair.substr(0, eqIndex).trim();
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obj[key] = pair.substr(eqIndex + 1, pair.length).trim();
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});
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return obj;
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})();
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var pairs = Object.keys(objCookie)
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.filter(function (item) {
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return item !== "domain";
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})
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.map(function (key) {
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return key + "=" + objCookie[key];
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});
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if (rawCookie.match(/httponly/i)) {
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pairs.push("HttpOnly");
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}
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return pairs.join("; ");
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}
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module.exports.rewriteCookies = rewriteCookies;
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