forked from svrjs/svrjs
Replaced wrapper over WHATWG URL API with custom URL parser
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parent
fa64c763bd
commit
a1160bd891
1 changed files with 124 additions and 63 deletions
187
svr.js
187
svr.js
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@ -1347,6 +1347,81 @@ function sanitizeURL(resource, allowDoubleSlashes) {
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else return sanitizedResource;
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}
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// SVR.JS URL parser function
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function parseURL(uri, prepend) {
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// Replace newline characters with its respective URL encodings
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uri = uri.replace(/\r/g, "%0D").replace(/\n/g, "%0A");
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// If URL begins with a slash, prepend a string if available
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if (prepend && uri[0] == "/") uri = prepend.replace(/\/+$/,"") + uri;
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// Determine if URL has slashes
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var hasSlashes = (uri.indexOf("/") != -1);
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// Parse the URL using regular expression
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var parsedURI = uri.match(/^(?:([^:]+:)(\/\/)?)?(?:([^@]+)@)?([^:\/?#\*]+|\[[^\*]\/]\])?(?::([0-9]+))?(\*|\/[^?#]*)?(\?[^#]*)?(#[\S\s]*)?/);
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// Match 1: protocol
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// Match 2: slashes after protocol
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// Match 3: authentication credentials
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// Match 4: host name
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// Match 5: port
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// Match 6: path name
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// Match 7: query string
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// Match 8: hash
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// If regular expression didn't match the entire URL, throw an error
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if (parsedURI[0].length != uri.length) throw new Error("Invalid URL: " + uri);
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// If match 1 is not empty, set the slash variable based on state of match 2
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if (parsedURI[1]) hasSlashes = (parsedURI[2] == "//");
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// If match 6 is empty and URL has slashes, set it to a slash.
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if (hasSlashes && !parsedURI[6]) parsedURI[6] = "/";
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// If match 4 contains Unicode characters, convert it to Punycode. If the result is an empty string, throw an error
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if (parsedURI[4] && !parsedURI[4].match(/^[a-zA-Z0-9\.\-]+$/)) {
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parsedURI[4] = url.domainToASCII(parsedURI[4]);
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if (!parsedURI[4]) throw new Error("Invalid URL: " + uri);
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}
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// Create a new URL object
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var uobject = new url.Url();
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// Populate a URL object
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if (hasSlashes) uobject.slashes = true;
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if (parsedURI[1]) uobject.protocol = parsedURI[1];
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if (parsedURI[3]) uobject.auth = parsedURI[3];
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if (parsedURI[4]) {
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uobject.host = parsedURI[4] + (parsedURI[5] ? (":" + parsedURI[5]) : "");
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if (parsedURI[4][0] == "[") uobject.hostname = parsedURI[4].substring(1, parsedURI[4].length-1);
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else uobject.hostname = parsedURI[4];
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}
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if (parsedURI[5]) uobject.port = parsedURI[5];
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if (parsedURI[6]) uobject.pathname = parsedURI[6];
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if (parsedURI[7]) {
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uobject.search = parsedURI[7];
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// Parse query strings
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var qobject = Object.create(null);
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var parsedQuery = parsedURI[7].substring(1).match(/([^&=]*)(?:=([^&]*))?/g);
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parsedQuery.forEach(function (qp) {
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if (qp.length > 0) {
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var parsedQP = qp.match(/([^&=]*)(?:=([^&]*))?/);
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if (parsedQP) {
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qobject[parsedQP[1]] = parsedQP[2] ? parsedQP[2] : "";
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}
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}
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});
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uobject.query = qobject;
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} else {
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uobject.query = Object.create(null);
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}
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if (parsedURI[8]) uobject.hash = parsedURI[8];
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if (uobject.pathname) uobject.path = uobject.pathname + (uobject.search ? uobject.search : "");
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uobject.href = (uobject.protocol ? (uobject.protocol + (uobject.slashes ? "//" : "")) : "") + (uobject.auth ? (uobject.auth + "@") : "") + (uobject.hostname ? uobject.hostname : "") + (uobject.path ? uobject.path : "") + (uobject.hash ? uobject.hash : "");
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return uobject;
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}
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// Node.JS mojibake URL fixing function
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function fixNodeMojibakeURL(string) {
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var encoded = "";
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@ -3319,68 +3394,19 @@ if (!cluster.isPrimary) {
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});
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}
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// Function to parse a URL string into a URL object
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function parseURL(uri) {
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// Prepare the path (remove multiple slashes)
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var preparedURI = uri.replace(/^\/{2,}/,"/");
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// Check if the URL API is available (Node.js version >= 10)
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if (typeof URL !== "undefined" && url.Url) {
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try {
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// Create a new URL object using the provided URI and base URL
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var uobject = new URL(preparedURI, "http" + (req.socket.encrypted ? "s" : "") + "://" + (req.headers.host ? req.headers.host : (domain ? domain : "unknown.invalid")));
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// Create a new URL object (similar to deprecated url.Url)
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var nuobject = new url.Url();
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// Set properties of the new URL object from the provided URL
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if (preparedURI.indexOf("/") != -1) nuobject.slashes = true;
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if (uobject.protocol != "") nuobject.protocol = uobject.protocol;
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if (uobject.username != "" && uobject.password != "") nuobject.auth = uobject.username + ":" + uobject.password;
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if (uobject.host != "") nuobject.host = uobject.host;
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if (uobject.hostname != "") nuobject.hostname = uobject.hostname;
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if (uobject.port != "") nuobject.port = uobject.port;
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if (uobject.pathname != "") nuobject.pathname = uobject.pathname;
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if (uobject.search != "") nuobject.search = uobject.search;
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if (uobject.hash != "") nuobject.hash = uobject.hash;
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if (uobject.href != "") nuobject.href = uobject.href;
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// Adjust the pathname and href properties if the URI doesn't start with "/"
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if (preparedURI[0] != "/") {
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if (nuobject.pathname) {
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nuobject.pathname = nuobject.pathname.substring(1);
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nuobject.href = nuobject.pathname + (nuobject.search ? nuobject.search : "");
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}
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}
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// Set the path property as a combination of pathname and search
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if (nuobject.pathname) {
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nuobject.path = nuobject.pathname + (nuobject.search ? nuobject.search : "");
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}
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// Initialize the query object and copy URL search parameters to it
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nuobject.query = {};
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uobject.searchParams.forEach(function (value, key) {
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nuobject.query[key] = value;
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});
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// Return the created URL object
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return nuobject;
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} catch (err) {
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// If there was an error using the URL API, fall back to deprecated url.parse
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return url.parse(preparedURI, true);
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}
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} else {
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// If the URL API is not available, fall back to deprecated url.parse
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return url.parse(preparedURI, true);
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}
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}
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// Authenticated user variable
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var authUser = null;
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// URL-related objects.
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var uobject = parseURL(req.url);
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var uobject = {};
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try {
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uobject = parseURL(req.url, "http" + (req.socket.encrypted ? "s" : "") + "://" + (req.headers.host ? req.headers.host : (domain ? domain : "unknown.invalid")));
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} catch (err) {
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// Return an 400 error
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callServerError(400);
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serverconsole.errmessage("Bad request!");
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return;
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}
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var search = uobject.search;
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var href = uobject.pathname;
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var ext = href.match(/[^\/]\.([^.]+)$/);
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@ -4173,7 +4199,14 @@ if (!cluster.isPrimary) {
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serverconsole.resmessage("URL sanitized: " + req.url + " => " + sanitizedURL);
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if (rewriteDirtyURLs) {
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req.url = sanitizedURL;
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uobject = parseURL(req.url);
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try {
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uobject = parseURL(req.url, "http" + (req.socket.encrypted ? "s" : "") + "://" + (req.headers.host ? req.headers.host : (domain ? domain : "unknown.invalid")));
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} catch (err) {
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// Return an 400 error
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callServerError(400);
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serverconsole.errmessage("Bad request!");
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return;
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}
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search = uobject.search;
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href = uobject.pathname;
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ext = href.match(/[^\/]\.([^.]+)$/);
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@ -4352,7 +4385,14 @@ if (!cluster.isPrimary) {
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if (urlWithPostfix != preparedReqUrl3) {
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serverconsole.resmessage("Added web root postfix: " + req.url + " => " + urlWithPostfix);
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req.url = urlWithPostfix;
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uobject = parseURL(req.url);
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try {
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uobject = parseURL(req.url, "http" + (req.socket.encrypted ? "s" : "") + "://" + (req.headers.host ? req.headers.host : (domain ? domain : "unknown.invalid")));
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} catch (err) {
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// Return an 400 error
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callServerError(400);
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serverconsole.errmessage("Bad request!");
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return;
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}
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search = uobject.search;
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href = uobject.pathname;
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ext = href.match(/[^\/]\.([^.]+)$/);
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@ -4388,7 +4428,14 @@ if (!cluster.isPrimary) {
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rewrittenAgainURL = url.format(rewrittenAgainURL);
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serverconsole.resmessage("URL sanitized: " + req.url + " => " + rewrittenAgainURL);
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req.url = rewrittenAgainURL;
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uobject = parseURL(req.url);
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try {
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uobject = parseURL(req.url, "http" + (req.socket.encrypted ? "s" : "") + "://" + (req.headers.host ? req.headers.host : (domain ? domain : "unknown.invalid")));
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} catch (err) {
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// Return an 400 error
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callServerError(400);
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serverconsole.errmessage("Bad request!");
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return;
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}
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search = uobject.search;
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href = uobject.pathname;
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ext = href.match(/[^\/]\.([^.]+)$/);
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@ -4415,7 +4462,14 @@ if (!cluster.isPrimary) {
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if (rewrittenURL != req.url) {
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serverconsole.resmessage("URL rewritten: " + req.url + " => " + rewrittenURL);
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req.url = rewrittenURL;
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uobject = parseURL(req.url);
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try {
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uobject = parseURL(req.url, "http" + (req.socket.encrypted ? "s" : "") + "://" + (req.headers.host ? req.headers.host : (domain ? domain : "unknown.invalid")));
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} catch (err) {
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// Return an 400 error
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callServerError(400);
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serverconsole.errmessage("Bad request!");
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return;
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}
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search = uobject.search;
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href = uobject.pathname;
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ext = href.match(/[^\/]\.([^.]+)$/);
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@ -4450,7 +4504,14 @@ if (!cluster.isPrimary) {
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rewrittenAgainURL = url.format(rewrittenAgainURL);
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serverconsole.resmessage("URL sanitized: " + req.url + " => " + rewrittenAgainURL);
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req.url = rewrittenAgainURL;
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uobject = parseURL(req.url);
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try {
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uobject = parseURL(req.url, "http" + (req.socket.encrypted ? "s" : "") + "://" + (req.headers.host ? req.headers.host : (domain ? domain : "unknown.invalid")));
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} catch (err) {
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// Return an 400 error
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callServerError(400);
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serverconsole.errmessage("Bad request!");
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return;
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}
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search = uobject.search;
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href = uobject.pathname;
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ext = href.match(/[^\/]\.([^.]+)$/);
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