forked from svrjs/svrjs
Move core middleware to the request handler.
This commit is contained in:
parent
988ff7c29c
commit
fb7c5ed854
3 changed files with 683 additions and 689 deletions
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@ -1,3 +1,11 @@
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const http = require("http");
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const fs = require("fs");
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const net = require("net");
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const generateErrorStack = require("../utils/generateErrorStack.js");
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const serverHTTPErrorDescs = require("../res/httpErrorDescriptions.js");
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const fixNodeMojibakeURL = require("../utils/urlMojibakeFixer.js");
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const ipMatch = require("../utils/ipMatch.js");
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const matchHostname = require("../utils/matchHostname.js");
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const generateServerString = require("../utils/generateServerString.js");
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let serverconsole = {};
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let middleware = [];
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@ -22,6 +30,681 @@ function requestHandler(req, res) {
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// SVR.JS configuration object (modified)
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const config = Object.assign(process.serverConfig);
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config.generateServerString = () => {
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return generateServerString(config.exposeServerVersion);
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};
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// getCustomHeaders() in SVR.JS 3.x
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config.getCustomHeaders = () => {
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let ph = Object.assign(config.customHeaders);
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if (config.customHeadersVHost) {
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let vhostP = null;
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config.customHeadersVHost.every(function (vhost) {
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if (
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matchHostname(vhost.host, req.headers.host) &&
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ipMatch(vhost.ip, req.socket ? req.socket.localAddress : undefined)
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) {
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vhostP = vhost;
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return false;
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} else {
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return true;
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}
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});
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if (vhostP && vhostP.headers) {
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const phNu = Object.assign(vhostP.headers);
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Object.keys(phNu).forEach(function (phNuK) {
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ph[phNuK] = phNu[phNuK];
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});
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}
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}
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Object.keys(ph).forEach(function (phk) {
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if (typeof ph[phk] == "string")
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ph[phk] = ph[phk].replace(/\{path\}/g, req.url);
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});
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ph["Server"] = config.generateServerString();
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return ph;
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};
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// Estimate fromMain from SVR.JS 3.x
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let fromMain = !(config.secure && !req.socket.encrypted);
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// Make HTTP/1.x API-based scripts compatible with HTTP/2.0 API
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if (config.enableHTTP2 == true && req.httpVersion == "2.0") {
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// Set HTTP/1.x methods (to prevent process warnings)
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res.writeHeadNodeApi = res.writeHead;
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res.setHeaderNodeApi = res.setHeader;
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res.writeHead = function (a, b, c) {
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let table = c;
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if (typeof b == "object") table = b;
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if (table == undefined) table = this.tHeaders;
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if (table == undefined) table = {};
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table = Object.assign(table);
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Object.keys(table).forEach(function (key) {
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const al = key.toLowerCase();
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if (
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al == "transfer-encoding" ||
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al == "connection" ||
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al == "keep-alive" ||
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al == "upgrade"
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)
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delete table[key];
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});
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if (res.stream && res.stream.destroyed) {
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return false;
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} else {
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return res.writeHeadNodeApi(a, table);
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}
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};
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res.setHeader = function (headerName, headerValue) {
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const al = headerName.toLowerCase();
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if (
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al != "transfer-encoding" &&
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al != "connection" &&
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al != "keep-alive" &&
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al != "upgrade"
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)
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return res.setHeaderNodeApi(headerName, headerValue);
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return false;
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};
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// Set HTTP/1.x headers
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if (!req.headers.host) req.headers.host = req.headers[":authority"];
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if (!req.url) req.url = req.headers[":path"];
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if (!req.protocol) req.protocol = req.headers[":scheme"];
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if (!req.method) req.method = req.headers[":method"];
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if (
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req.headers[":path"] == undefined ||
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req.headers[":method"] == undefined
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) {
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let err = new Error(
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'Either ":path" or ":method" pseudoheader is missing.',
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);
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if (Buffer.alloc) err.rawPacket = Buffer.alloc(0);
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if (req.socket && req.socket.server)
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req.socket.server.emit("clientError", err, req.socket);
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}
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}
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/*if (req.headers["x-svr-js-from-main-thread"] == "true" && req.socket && (!req.socket.remoteAddress || req.socket.remoteAddress == "::1" || req.socket.remoteAddress == "::ffff:127.0.0.1" || req.socket.remoteAddress == "127.0.0.1" || req.socket.remoteAddress == "localhost" || req.socket.remoteAddress == host || req.socket.remoteAddress == "::ffff:" + host)) {
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let headers = config.getCustomHeaders();
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res.writeHead(204, http.STATUS_CODES[204], headers);
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res.end();
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return;
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}*/
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req.url = fixNodeMojibakeURL(req.url);
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let headWritten = false;
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let lastStatusCode = null;
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res.writeHeadNative = res.writeHead;
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res.writeHead = (code, codeDescription, headers) => {
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if (
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!(
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headWritten &&
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process.isBun &&
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code === lastStatusCode &&
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codeDescription === undefined &&
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codeDescription === undefined
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)
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) {
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if (headWritten) {
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process.emitWarning("res.writeHead called multiple times.", {
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code: "WARN_SVRJS_MULTIPLE_WRITEHEAD",
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});
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return res;
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} else {
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headWritten = true;
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}
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if (code >= 400 && code <= 599) {
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if (code >= 400 && code <= 499) process.err4xxcounter++;
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else if (code >= 500 && code <= 599) process.err5xxcounter++;
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logFacilities.errmessage(
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"Server responded with " + code.toString() + " code.",
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);
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} else {
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logFacilities.resmessage(
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"Server responded with " + code.toString() + " code.",
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);
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}
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if (typeof codeDescription != "string" && http.STATUS_CODES[code]) {
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if (!headers) headers = codeDescription;
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codeDescription = http.STATUS_CODES[code];
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}
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lastStatusCode = code;
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}
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res.writeHeadNative(code, codeDescription, headers);
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};
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let finished = false;
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res.on("finish", () => {
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if (!finished) {
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finished = true;
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logFacilities.locmessage("Client disconnected.");
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}
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});
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res.on("close", () => {
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if (!finished) {
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finished = true;
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logFacilities.locmessage("Client disconnected.");
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}
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});
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req.isProxy = false;
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if (req.url[0] != "/" && req.url != "*") req.isProxy = true;
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logFacilities.locmessage(
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"Somebody connected to " +
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(config.secure && fromMain
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? (typeof config.sport == "number" ? "port " : "socket ") + config.sport
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: (typeof config.port == "number" ? "port " : "socket ") +
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config.port) +
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"...",
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);
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if (req.socket == null) {
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logFacilities.errmessage("Client socket is null!!!");
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return;
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}
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// Set up X-Forwarded-For
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let reqip = req.socket.remoteAddress;
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let reqport = req.socket.remotePort;
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let oldip = "";
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let oldport = "";
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let isForwardedValid = true;
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if (config.enableIPSpoofing) {
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if (req.headers["x-forwarded-for"] != undefined) {
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let preparedReqIP = req.headers["x-forwarded-for"]
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.split(",")[0]
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.replace(/ /g, "");
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let preparedReqIPvalid = net.isIP(preparedReqIP);
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if (preparedReqIPvalid) {
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if (
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preparedReqIPvalid == 4 &&
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req.socket.remoteAddress &&
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req.socket.remoteAddress.indexOf(":") > -1
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)
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preparedReqIP = "::ffff:" + preparedReqIP;
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reqip = preparedReqIP;
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reqport = null;
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try {
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oldport = req.socket.remotePort;
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oldip = req.socket.remoteAddress;
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req.socket.realRemotePort = reqport;
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req.socket.realRemoteAddress = reqip;
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req.socket.originalRemotePort = oldport;
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req.socket.originalRemoteAddress = oldip;
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res.socket.realRemotePort = reqport;
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res.socket.realRemoteAddress = reqip;
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res.socket.originalRemotePort = oldport;
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res.socket.originalRemoteAddress = oldip;
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} catch (err) {
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// Address setting failed
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}
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} else {
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isForwardedValid = false;
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}
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}
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}
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process.reqcounter++;
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// Process the Host header
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let oldHostHeader = req.headers.host;
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if (typeof req.headers.host == "string") {
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req.headers.host = req.headers.host.toLowerCase();
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if (!req.headers.host.match(/^\.+$/))
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req.headers.host = req.headers.host.replace(/\.$/g, "");
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}
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logFacilities.reqmessage(
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"Client " +
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(!reqip || reqip == ""
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? "[unknown client]"
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: reqip +
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(reqport && reqport !== 0 && reqport != "" ? ":" + reqport : "")) +
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" wants " +
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(req.method == "GET"
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? "content in "
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: req.method == "POST"
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? "to post content in "
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: req.method == "PUT"
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? "to add content in "
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: req.method == "DELETE"
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? "to delete content in "
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: req.method == "PATCH"
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? "to patch content in "
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: "to access content using " + req.method + " method in ") +
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(req.headers.host == undefined || req.isProxy ? "" : req.headers.host) +
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req.url,
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);
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if (req.headers["user-agent"] != undefined)
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logFacilities.reqmessage("Client uses " + req.headers["user-agent"]);
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if (oldHostHeader && oldHostHeader != req.headers.host)
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logFacilities.resmessage(
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"Host name rewritten: " + oldHostHeader + " => " + req.headers.host,
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);
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// Header and footer placeholders
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res.head = "";
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res.foot = "";
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res.responseEnd = (body) => {
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// If body is Buffer, then it is converted to String anyway.
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res.write(res.head + body + res.foot);
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res.end();
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};
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// Server error calling method
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res.error = (errorCode, extName, stack, ch) => {
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if (typeof errorCode !== "number") {
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throw new TypeError("HTTP error code parameter needs to be an integer.");
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}
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// Handle optional parameters
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if (extName && typeof extName === "object") {
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ch = stack;
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stack = extName;
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extName = undefined;
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} else if (
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typeof extName !== "string" &&
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extName !== null &&
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extName !== undefined
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) {
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throw new TypeError("Extension name parameter needs to be a string.");
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}
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if (
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stack &&
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typeof stack === "object" &&
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Object.prototype.toString.call(stack) !== "[object Error]"
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) {
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ch = stack;
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stack = undefined;
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} else if (
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typeof stack !== "object" &&
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typeof stack !== "string" &&
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stack
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) {
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throw new TypeError(
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"Error stack parameter needs to be either a string or an instance of Error object.",
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);
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}
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// Determine error file
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function getErrorFileName(list, callback, _i) {
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function medCallback(p) {
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if (p) callback(p);
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else {
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if (errorCode == 404) {
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fs.access(config.page404, fs.constants.F_OK, function (err) {
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if (err) {
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fs.access(
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"." + errorCode.toString(),
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fs.constants.F_OK,
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function (err) {
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try {
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if (err) {
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callback(errorCode.toString() + ".html");
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} else {
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callback("." + errorCode.toString());
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}
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} catch (err2) {
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res.error(500, err2);
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}
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},
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);
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} else {
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try {
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callback(config.page404);
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} catch (err2) {
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res.error(500, err2);
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}
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}
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});
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} else {
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fs.access(
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"." + errorCode.toString(),
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fs.constants.F_OK,
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function (err) {
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try {
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if (err) {
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callback(errorCode.toString() + ".html");
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} else {
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callback("." + errorCode.toString());
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}
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} catch (err2) {
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res.error(500, err2);
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}
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},
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);
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}
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}
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}
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if (!_i) _i = 0;
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if (_i >= list.length) {
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medCallback(false);
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return;
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}
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if (
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list[_i].scode != errorCode ||
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!(
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matchHostname(list[_i].host, req.headers.host) &&
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ipMatch(list[_i].ip, req.socket ? req.socket.localAddress : undefined)
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)
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) {
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getErrorFileName(list, callback, _i + 1);
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return;
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} else {
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fs.access(list[_i].path, fs.constants.F_OK, function (err) {
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if (err) {
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getErrorFileName(list, callback, _i + 1);
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} else {
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medCallback(list[_i].path);
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}
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});
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}
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}
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getErrorFileName(config.errorPages, function (errorFile) {
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// Generate error stack if not provided
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if (Object.prototype.toString.call(stack) === "[object Error]")
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stack = generateErrorStack(stack);
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if (stack === undefined)
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stack = generateErrorStack(new Error("Unknown error"));
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if (errorCode == 500 || errorCode == 502) {
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logFacilities.errmessage(
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"There was an error while processing the request!",
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);
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logFacilities.errmessage("Stack:");
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logFacilities.errmessage(stack);
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}
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// Hide the error stack if specified
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if (config.stackHidden) stack = "[error stack hidden]";
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// Validate the error code and handle unknown codes
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if (serverHTTPErrorDescs[errorCode] === undefined) {
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res.error(501, extName, stack);
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} else {
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// Process custom headers if provided
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let cheaders = { ...config.getCustomHeaders(), ...ch };
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cheaders["Content-Type"] = "text/html; charset=utf-8";
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// Set default Allow header for 405 error if not provided
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if (errorCode == 405 && !cheaders["Allow"])
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cheaders["Allow"] = "GET, POST, HEAD, OPTIONS";
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// Read the error file and replace placeholders with error information
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fs.readFile(errorFile, function (err, data) {
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try {
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if (err) throw err;
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res.writeHead(errorCode, http.STATUS_CODES[errorCode], cheaders);
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res.responseEnd(
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data
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.toString()
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.replace(
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/{errorMessage}/g,
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errorCode.toString() +
|
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" " +
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http.STATUS_CODES[errorCode]
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.replace(/&/g, "&")
|
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.replace(/</g, "<")
|
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.replace(/>/g, ">"),
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)
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.replace(/{errorDesc}/g, serverHTTPErrorDescs[errorCode])
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.replace(
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/{stack}/g,
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stack
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.replace(/&/g, "&")
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.replace(/</g, "<")
|
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.replace(/>/g, ">")
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.replace(/\r\n/g, "<br/>")
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.replace(/\n/g, "<br/>")
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.replace(/\r/g, "<br/>")
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.replace(/ {2}/g, " "),
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)
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.replace(
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/{path}/g,
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req.url
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.replace(/&/g, "&")
|
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.replace(/</g, "<")
|
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.replace(/>/g, ">"),
|
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)
|
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.replace(
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/{server}/g,
|
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"" +
|
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(
|
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config.generateServerString() +
|
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(!config.exposeModsInErrorPages || extName == undefined
|
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? ""
|
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: " " + extName)
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)
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.replace(/&/g, "&")
|
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.replace(/</g, "<")
|
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.replace(/>/g, ">") +
|
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(req.headers.host == undefined || req.isProxy
|
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? ""
|
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: " on " +
|
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String(req.headers.host)
|
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.replace(/&/g, "&")
|
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.replace(/</g, "<")
|
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.replace(/>/g, ">")),
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)
|
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.replace(
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/{contact}/g,
|
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config.serverAdministratorEmail
|
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.replace(/&/g, "&")
|
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.replace(/</g, "<")
|
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.replace(/>/g, ">")
|
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.replace(/\./g, "[dot]")
|
||||
.replace(/@/g, "[at]"),
|
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),
|
||||
); // Replace placeholders in error response
|
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} catch (err) {
|
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let additionalError = 500;
|
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// Handle additional error cases
|
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if (err.code == "ENOENT") {
|
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additionalError = 404;
|
||||
} else if (err.code == "ENOTDIR") {
|
||||
additionalError = 404; // Assume that file doesn't exist
|
||||
} else if (err.code == "EACCES") {
|
||||
additionalError = 403;
|
||||
} else if (err.code == "ENAMETOOLONG") {
|
||||
additionalError = 414;
|
||||
} else if (err.code == "EMFILE") {
|
||||
additionalError = 503;
|
||||
} else if (err.code == "ELOOP") {
|
||||
additionalError = 508;
|
||||
}
|
||||
|
||||
res.writeHead(errorCode, http.STATUS_CODES[errorCode], cheaders);
|
||||
res.write(
|
||||
(
|
||||
'<!DOCTYPE html><html><head><title>{errorMessage}</title><meta name="viewport" content="width=device-width, initial-scale=1.0" /><style>html{background-color:#dfffdf;color:#000000;font-family:FreeSans, Helvetica, Tahoma, Verdana, Arial, sans-serif;margin:0.75em}body{background-color:#ffffff;padding:0.5em 0.5em 0.1em;margin:0.5em auto;width:90%;max-width:800px;-webkit-box-shadow:0 5px 10px 0 rgba(0, 0, 0, 0.15);-moz-box-shadow:0 5px 10px 0 rgba(0, 0, 0, 0.15);box-shadow:0 5px 10px 0 rgba(0, 0, 0, 0.15)}h1{text-align:center;font-size:2.25em;margin:0.3em 0 0.5em}code{background-color:#dfffdf;-webkit-box-shadow:0 2px 4px 0 rgba(0, 0, 0, 0.1);-moz-box-shadow:0 2px 4px 0 rgba(0, 0, 0, 0.1);box-shadow:0 2px 4px 0 rgba(0, 0, 0, 0.1);display:block;padding:0.2em;font-family:"DejaVu Sans Mono", "Bitstream Vera Sans Mono", Hack, Menlo, Consolas, Monaco, monospace;font-size:0.85em;margin:auto;width:95%;max-width:600px}table{width:95%;border-collapse:collapse;margin:auto;overflow-wrap:break-word;word-wrap:break-word;word-break:break-all;word-break:break-word;position:relative;z-index:0}table tbody{background-color:#ffffff;color:#000000}table tbody:after{-webkit-box-shadow:0 4px 8px 0 rgba(0, 0, 0, 0.175);-moz-box-shadow:0 4px 8px 0 rgba(0, 0, 0, 0.175);box-shadow:0 4px 8px 0 rgba(0, 0, 0, 0.175);content:\' \';position:absolute;top:0;left:0;right:0;bottom:0;z-index:-1}table img{margin:0;display:inline}th,tr{padding:0.15em;text-align:center}th{background-color:#007000;color:#ffffff}th a{color:#ffffff}td,th{padding:0.225em}td{text-align:left}tr:nth-child(odd){background-color:#dfffdf}hr{color:#ffffff}@media screen and (prefers-color-scheme: dark){html{background-color:#002000;color:#ffffff}body{background-color:#000f00;-webkit-box-shadow:0 5px 10px 0 rgba(127, 127, 127, 0.15);-moz-box-shadow:0 5px 10px 0 rgba(127, 127, 127, 0.15);box-shadow:0 5px 10px 0 rgba(127, 127, 127, 0.15)}code{background-color:#002000;-webkit-box-shadow:0 2px 4px 0 rgba(127, 127, 127, 0.1);-moz-box-shadow:0 2px 4px 0 rgba(127, 127, 127, 0.1);box-shadow:0 2px 4px 0 rgba(127, 127, 127, 0.1)}a{color:#ffffff}a:hover{color:#00ff00}table tbody{background-color:#000f00;color:#ffffff}table tbody:after{-webkit-box-shadow:0 4px 8px 0 rgba(127, 127, 127, 0.175);-moz-box-shadow:0 4px 8px 0 rgba(127, 127, 127, 0.175);box-shadow:0 4px 8px 0 rgba(127, 127, 127, 0.175)}tr:nth-child(odd){background-color:#002000}}</style></head><body><h1>{errorMessage}</h1><p>{errorDesc}</p>' +
|
||||
(additionalError == 404
|
||||
? ""
|
||||
: "<p>Additionally, a {additionalError} error occurred while loading an error page.</p>") +
|
||||
"<p><i>{server}</i></p></body></html>"
|
||||
)
|
||||
.replace(
|
||||
/{errorMessage}/g,
|
||||
errorCode.toString() +
|
||||
" " +
|
||||
http.STATUS_CODES[errorCode]
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">"),
|
||||
)
|
||||
.replace(/{errorDesc}/g, serverHTTPErrorDescs[errorCode])
|
||||
.replace(
|
||||
/{stack}/g,
|
||||
stack
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")
|
||||
.replace(/\r\n/g, "<br/>")
|
||||
.replace(/\n/g, "<br/>")
|
||||
.replace(/\r/g, "<br/>")
|
||||
.replace(/ {2}/g, " "),
|
||||
)
|
||||
.replace(
|
||||
/{path}/g,
|
||||
req.url
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">"),
|
||||
)
|
||||
.replace(
|
||||
/{server}/g,
|
||||
"" +
|
||||
(
|
||||
config.generateServerString() +
|
||||
(!config.exposeModsInErrorPages || extName == undefined
|
||||
? ""
|
||||
: " " + extName)
|
||||
)
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">") +
|
||||
(req.headers.host == undefined || req.isProxy
|
||||
? ""
|
||||
: " on " +
|
||||
String(req.headers.host)
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")),
|
||||
)
|
||||
.replace(
|
||||
/{contact}/g,
|
||||
config.serverAdministratorEmail
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")
|
||||
.replace(/\./g, "[dot]")
|
||||
.replace(/@/g, "[at]"),
|
||||
)
|
||||
.replace(/{additionalError}/g, additionalError.toString()),
|
||||
); // Replace placeholders in error response
|
||||
res.end();
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
};
|
||||
|
||||
// Function to perform HTTP redirection to a specified destination URL
|
||||
res.redirect = (destination, isTemporary, keepMethod, customHeaders) => {
|
||||
// If keepMethod is a object, then save it to customHeaders
|
||||
if (typeof keepMethod == "object") customHeaders = keepMethod;
|
||||
|
||||
// If isTemporary is a object, then save it to customHeaders
|
||||
if (typeof isTemporary == "object") customHeaders = isTemporary;
|
||||
|
||||
// If customHeaders are not provided, get the default custom headers
|
||||
if (customHeaders === undefined) customHeaders = config.getCustomHeaders();
|
||||
|
||||
// Set the "Location" header to the destination URL
|
||||
customHeaders["Location"] = destination;
|
||||
|
||||
// Determine the status code for redirection based on the isTemporary and keepMethod flags
|
||||
const statusCode = keepMethod
|
||||
? isTemporary
|
||||
? 307
|
||||
: 308
|
||||
: isTemporary
|
||||
? 302
|
||||
: 301;
|
||||
|
||||
// Write the response header with the appropriate status code and message
|
||||
res.writeHead(statusCode, http.STATUS_CODES[statusCode], customHeaders);
|
||||
|
||||
// Log the redirection message
|
||||
logFacilities.resmessage("Client redirected to " + destination);
|
||||
|
||||
// End the response
|
||||
res.end();
|
||||
|
||||
// Return from the function
|
||||
return;
|
||||
};
|
||||
|
||||
try {
|
||||
res.head = fs.existsSync("./.head")
|
||||
? fs.readFileSync("./.head").toString()
|
||||
: fs.existsSync("./head.html")
|
||||
? fs.readFileSync("./head.html").toString()
|
||||
: ""; // header
|
||||
res.foot = fs.existsSync("./.foot")
|
||||
? fs.readFileSync("./.foot").toString()
|
||||
: fs.existsSync("./foot.html")
|
||||
? fs.readFileSync("./foot.html").toString()
|
||||
: ""; // footer
|
||||
} catch (err) {
|
||||
res.error(500, err);
|
||||
}
|
||||
|
||||
// Authenticated user variable
|
||||
req.authUser = null;
|
||||
|
||||
if (req.url == "*") {
|
||||
// Handle "*" URL
|
||||
if (req.method == "OPTIONS") {
|
||||
// Respond with list of methods
|
||||
let hdss = config.getCustomHeaders();
|
||||
hdss["Allow"] = "GET, POST, HEAD, OPTIONS";
|
||||
res.writeHead(204, http.STATUS_CODES[204], hdss);
|
||||
res.end();
|
||||
return;
|
||||
} else {
|
||||
// SVR.JS doesn't understand that request, so throw an 400 error
|
||||
res.error(400);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (req.headers["expect"] && req.headers["expect"] != "100-continue") {
|
||||
// Expectations not met.
|
||||
res.error(417);
|
||||
return;
|
||||
}
|
||||
|
||||
if (req.method == "CONNECT") {
|
||||
// CONNECT requests should be handled in "connect" event.
|
||||
res.error(501);
|
||||
logFacilities.errmessage(
|
||||
"CONNECT requests aren't supported. Your JS runtime probably doesn't support 'connect' handler for HTTP library.",
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!isForwardedValid) {
|
||||
logFacilities.errmessage("X-Forwarded-For header is invalid.");
|
||||
res.error(400);
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
req.parsedURL = new URL(
|
||||
req.url,
|
||||
"http" +
|
||||
(req.socket.encrypted ? "s" : "") +
|
||||
"://" +
|
||||
(req.headers.host
|
||||
? req.headers.host
|
||||
: config.domain
|
||||
? config.domain
|
||||
: "unknown.invalid"),
|
||||
);
|
||||
} catch (err) {
|
||||
res.error(400, err);
|
||||
return;
|
||||
}
|
||||
|
||||
let index = 0;
|
||||
|
||||
// Call the next middleware function
|
||||
|
|
|
|||
|
|
@ -279,7 +279,6 @@ try {
|
|||
}
|
||||
|
||||
let middleware = [
|
||||
require("./middleware/core.js"),
|
||||
require("./middleware/urlSanitizer.js"),
|
||||
require("./middleware/redirects.js"),
|
||||
require("./middleware/blocklist.js"),
|
||||
|
|
|
|||
|
|
@ -1,688 +0,0 @@
|
|||
const http = require("http");
|
||||
const fs = require("fs");
|
||||
const net = require("net");
|
||||
const generateErrorStack = require("../utils/generateErrorStack.js");
|
||||
const generateServerString = require("../utils/generateServerString.js");
|
||||
const serverHTTPErrorDescs = require("../res/httpErrorDescriptions.js");
|
||||
const fixNodeMojibakeURL = require("../utils/urlMojibakeFixer.js");
|
||||
const ipMatch = require("../utils/ipMatch.js");
|
||||
const matchHostname = require("../utils/matchHostname.js");
|
||||
|
||||
module.exports = (req, res, logFacilities, config, next) => {
|
||||
config.generateServerString = () => {
|
||||
return generateServerString(config.exposeServerVersion);
|
||||
};
|
||||
|
||||
// getCustomHeaders() in SVR.JS 3.x
|
||||
config.getCustomHeaders = () => {
|
||||
let ph = Object.assign(config.customHeaders);
|
||||
if (config.customHeadersVHost) {
|
||||
let vhostP = null;
|
||||
config.customHeadersVHost.every(function (vhost) {
|
||||
if (
|
||||
matchHostname(vhost.host, req.headers.host) &&
|
||||
ipMatch(vhost.ip, req.socket ? req.socket.localAddress : undefined)
|
||||
) {
|
||||
vhostP = vhost;
|
||||
return false;
|
||||
} else {
|
||||
return true;
|
||||
}
|
||||
});
|
||||
if (vhostP && vhostP.headers) {
|
||||
const phNu = Object.assign(vhostP.headers);
|
||||
Object.keys(phNu).forEach(function (phNuK) {
|
||||
ph[phNuK] = phNu[phNuK];
|
||||
});
|
||||
}
|
||||
}
|
||||
Object.keys(ph).forEach(function (phk) {
|
||||
if (typeof ph[phk] == "string")
|
||||
ph[phk] = ph[phk].replace(/\{path\}/g, req.url);
|
||||
});
|
||||
ph["Server"] = config.generateServerString();
|
||||
return ph;
|
||||
};
|
||||
|
||||
// Estimate fromMain from SVR.JS 3.x
|
||||
let fromMain = !(config.secure && !req.socket.encrypted);
|
||||
|
||||
// Make HTTP/1.x API-based scripts compatible with HTTP/2.0 API
|
||||
if (config.enableHTTP2 == true && req.httpVersion == "2.0") {
|
||||
// Set HTTP/1.x methods (to prevent process warnings)
|
||||
res.writeHeadNodeApi = res.writeHead;
|
||||
res.setHeaderNodeApi = res.setHeader;
|
||||
|
||||
res.writeHead = function (a, b, c) {
|
||||
let table = c;
|
||||
if (typeof b == "object") table = b;
|
||||
if (table == undefined) table = this.tHeaders;
|
||||
if (table == undefined) table = {};
|
||||
table = Object.assign(table);
|
||||
Object.keys(table).forEach(function (key) {
|
||||
const al = key.toLowerCase();
|
||||
if (
|
||||
al == "transfer-encoding" ||
|
||||
al == "connection" ||
|
||||
al == "keep-alive" ||
|
||||
al == "upgrade"
|
||||
)
|
||||
delete table[key];
|
||||
});
|
||||
if (res.stream && res.stream.destroyed) {
|
||||
return false;
|
||||
} else {
|
||||
return res.writeHeadNodeApi(a, table);
|
||||
}
|
||||
};
|
||||
res.setHeader = function (headerName, headerValue) {
|
||||
const al = headerName.toLowerCase();
|
||||
if (
|
||||
al != "transfer-encoding" &&
|
||||
al != "connection" &&
|
||||
al != "keep-alive" &&
|
||||
al != "upgrade"
|
||||
)
|
||||
return res.setHeaderNodeApi(headerName, headerValue);
|
||||
return false;
|
||||
};
|
||||
|
||||
// Set HTTP/1.x headers
|
||||
if (!req.headers.host) req.headers.host = req.headers[":authority"];
|
||||
if (!req.url) req.url = req.headers[":path"];
|
||||
if (!req.protocol) req.protocol = req.headers[":scheme"];
|
||||
if (!req.method) req.method = req.headers[":method"];
|
||||
if (
|
||||
req.headers[":path"] == undefined ||
|
||||
req.headers[":method"] == undefined
|
||||
) {
|
||||
let err = new Error(
|
||||
'Either ":path" or ":method" pseudoheader is missing.',
|
||||
);
|
||||
if (Buffer.alloc) err.rawPacket = Buffer.alloc(0);
|
||||
if (req.socket && req.socket.server)
|
||||
req.socket.server.emit("clientError", err, req.socket);
|
||||
}
|
||||
}
|
||||
|
||||
/*if (req.headers["x-svr-js-from-main-thread"] == "true" && req.socket && (!req.socket.remoteAddress || req.socket.remoteAddress == "::1" || req.socket.remoteAddress == "::ffff:127.0.0.1" || req.socket.remoteAddress == "127.0.0.1" || req.socket.remoteAddress == "localhost" || req.socket.remoteAddress == host || req.socket.remoteAddress == "::ffff:" + host)) {
|
||||
let headers = config.getCustomHeaders();
|
||||
res.writeHead(204, http.STATUS_CODES[204], headers);
|
||||
res.end();
|
||||
return;
|
||||
}*/
|
||||
|
||||
req.url = fixNodeMojibakeURL(req.url);
|
||||
|
||||
let headWritten = false;
|
||||
let lastStatusCode = null;
|
||||
res.writeHeadNative = res.writeHead;
|
||||
res.writeHead = function (code, codeDescription, headers) {
|
||||
if (
|
||||
!(
|
||||
headWritten &&
|
||||
process.isBun &&
|
||||
code === lastStatusCode &&
|
||||
codeDescription === undefined &&
|
||||
codeDescription === undefined
|
||||
)
|
||||
) {
|
||||
if (headWritten) {
|
||||
process.emitWarning("res.writeHead called multiple times.", {
|
||||
code: "WARN_SVRJS_MULTIPLE_WRITEHEAD",
|
||||
});
|
||||
return res;
|
||||
} else {
|
||||
headWritten = true;
|
||||
}
|
||||
if (code >= 400 && code <= 599) {
|
||||
if (code >= 400 && code <= 499) process.err4xxcounter++;
|
||||
else if (code >= 500 && code <= 599) process.err5xxcounter++;
|
||||
logFacilities.errmessage(
|
||||
"Server responded with " + code.toString() + " code.",
|
||||
);
|
||||
} else {
|
||||
logFacilities.resmessage(
|
||||
"Server responded with " + code.toString() + " code.",
|
||||
);
|
||||
}
|
||||
if (typeof codeDescription != "string" && http.STATUS_CODES[code]) {
|
||||
if (!headers) headers = codeDescription;
|
||||
codeDescription = http.STATUS_CODES[code];
|
||||
}
|
||||
lastStatusCode = code;
|
||||
}
|
||||
res.writeHeadNative(code, codeDescription, headers);
|
||||
};
|
||||
|
||||
let finished = false;
|
||||
res.on("finish", function () {
|
||||
if (!finished) {
|
||||
finished = true;
|
||||
logFacilities.locmessage("Client disconnected.");
|
||||
}
|
||||
});
|
||||
res.on("close", function () {
|
||||
if (!finished) {
|
||||
finished = true;
|
||||
logFacilities.locmessage("Client disconnected.");
|
||||
}
|
||||
});
|
||||
|
||||
req.isProxy = false;
|
||||
if (req.url[0] != "/" && req.url != "*") req.isProxy = true;
|
||||
logFacilities.locmessage(
|
||||
"Somebody connected to " +
|
||||
(config.secure && fromMain
|
||||
? (typeof config.sport == "number" ? "port " : "socket ") + config.sport
|
||||
: (typeof config.port == "number" ? "port " : "socket ") +
|
||||
config.port) +
|
||||
"...",
|
||||
);
|
||||
|
||||
if (req.socket == null) {
|
||||
logFacilities.errmessage("Client socket is null!!!");
|
||||
return;
|
||||
}
|
||||
|
||||
// Set up X-Forwarded-For
|
||||
let reqip = req.socket.remoteAddress;
|
||||
let reqport = req.socket.remotePort;
|
||||
let oldip = "";
|
||||
let oldport = "";
|
||||
let isForwardedValid = true;
|
||||
if (config.enableIPSpoofing) {
|
||||
if (req.headers["x-forwarded-for"] != undefined) {
|
||||
let preparedReqIP = req.headers["x-forwarded-for"]
|
||||
.split(",")[0]
|
||||
.replace(/ /g, "");
|
||||
let preparedReqIPvalid = net.isIP(preparedReqIP);
|
||||
if (preparedReqIPvalid) {
|
||||
if (
|
||||
preparedReqIPvalid == 4 &&
|
||||
req.socket.remoteAddress &&
|
||||
req.socket.remoteAddress.indexOf(":") > -1
|
||||
)
|
||||
preparedReqIP = "::ffff:" + preparedReqIP;
|
||||
reqip = preparedReqIP;
|
||||
reqport = null;
|
||||
try {
|
||||
oldport = req.socket.remotePort;
|
||||
oldip = req.socket.remoteAddress;
|
||||
req.socket.realRemotePort = reqport;
|
||||
req.socket.realRemoteAddress = reqip;
|
||||
req.socket.originalRemotePort = oldport;
|
||||
req.socket.originalRemoteAddress = oldip;
|
||||
res.socket.realRemotePort = reqport;
|
||||
res.socket.realRemoteAddress = reqip;
|
||||
res.socket.originalRemotePort = oldport;
|
||||
res.socket.originalRemoteAddress = oldip;
|
||||
} catch (err) {
|
||||
// Address setting failed
|
||||
}
|
||||
} else {
|
||||
isForwardedValid = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
process.reqcounter++;
|
||||
|
||||
// Process the Host header
|
||||
let oldHostHeader = req.headers.host;
|
||||
if (typeof req.headers.host == "string") {
|
||||
req.headers.host = req.headers.host.toLowerCase();
|
||||
if (!req.headers.host.match(/^\.+$/))
|
||||
req.headers.host = req.headers.host.replace(/\.$/g, "");
|
||||
}
|
||||
|
||||
logFacilities.reqmessage(
|
||||
"Client " +
|
||||
(!reqip || reqip == ""
|
||||
? "[unknown client]"
|
||||
: reqip +
|
||||
(reqport && reqport !== 0 && reqport != "" ? ":" + reqport : "")) +
|
||||
" wants " +
|
||||
(req.method == "GET"
|
||||
? "content in "
|
||||
: req.method == "POST"
|
||||
? "to post content in "
|
||||
: req.method == "PUT"
|
||||
? "to add content in "
|
||||
: req.method == "DELETE"
|
||||
? "to delete content in "
|
||||
: req.method == "PATCH"
|
||||
? "to patch content in "
|
||||
: "to access content using " + req.method + " method in ") +
|
||||
(req.headers.host == undefined || req.isProxy ? "" : req.headers.host) +
|
||||
req.url,
|
||||
);
|
||||
if (req.headers["user-agent"] != undefined)
|
||||
logFacilities.reqmessage("Client uses " + req.headers["user-agent"]);
|
||||
if (oldHostHeader && oldHostHeader != req.headers.host)
|
||||
logFacilities.resmessage(
|
||||
"Host name rewritten: " + oldHostHeader + " => " + req.headers.host,
|
||||
);
|
||||
|
||||
// Header and footer placeholders
|
||||
res.head = "";
|
||||
res.foot = "";
|
||||
|
||||
res.responseEnd = (body) => {
|
||||
// If body is Buffer, then it is converted to String anyway.
|
||||
res.write(res.head + body + res.foot);
|
||||
res.end();
|
||||
};
|
||||
|
||||
// Server error calling method
|
||||
res.error = (errorCode, extName, stack, ch) => {
|
||||
if (typeof errorCode !== "number") {
|
||||
throw new TypeError("HTTP error code parameter needs to be an integer.");
|
||||
}
|
||||
|
||||
// Handle optional parameters
|
||||
if (extName && typeof extName === "object") {
|
||||
ch = stack;
|
||||
stack = extName;
|
||||
extName = undefined;
|
||||
} else if (
|
||||
typeof extName !== "string" &&
|
||||
extName !== null &&
|
||||
extName !== undefined
|
||||
) {
|
||||
throw new TypeError("Extension name parameter needs to be a string.");
|
||||
}
|
||||
|
||||
if (
|
||||
stack &&
|
||||
typeof stack === "object" &&
|
||||
Object.prototype.toString.call(stack) !== "[object Error]"
|
||||
) {
|
||||
ch = stack;
|
||||
stack = undefined;
|
||||
} else if (
|
||||
typeof stack !== "object" &&
|
||||
typeof stack !== "string" &&
|
||||
stack
|
||||
) {
|
||||
throw new TypeError(
|
||||
"Error stack parameter needs to be either a string or an instance of Error object.",
|
||||
);
|
||||
}
|
||||
|
||||
// Determine error file
|
||||
function getErrorFileName(list, callback, _i) {
|
||||
function medCallback(p) {
|
||||
if (p) callback(p);
|
||||
else {
|
||||
if (errorCode == 404) {
|
||||
fs.access(config.page404, fs.constants.F_OK, function (err) {
|
||||
if (err) {
|
||||
fs.access(
|
||||
"." + errorCode.toString(),
|
||||
fs.constants.F_OK,
|
||||
function (err) {
|
||||
try {
|
||||
if (err) {
|
||||
callback(errorCode.toString() + ".html");
|
||||
} else {
|
||||
callback("." + errorCode.toString());
|
||||
}
|
||||
} catch (err2) {
|
||||
res.error(500, err2);
|
||||
}
|
||||
},
|
||||
);
|
||||
} else {
|
||||
try {
|
||||
callback(config.page404);
|
||||
} catch (err2) {
|
||||
res.error(500, err2);
|
||||
}
|
||||
}
|
||||
});
|
||||
} else {
|
||||
fs.access(
|
||||
"." + errorCode.toString(),
|
||||
fs.constants.F_OK,
|
||||
function (err) {
|
||||
try {
|
||||
if (err) {
|
||||
callback(errorCode.toString() + ".html");
|
||||
} else {
|
||||
callback("." + errorCode.toString());
|
||||
}
|
||||
} catch (err2) {
|
||||
res.error(500, err2);
|
||||
}
|
||||
},
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (!_i) _i = 0;
|
||||
if (_i >= list.length) {
|
||||
medCallback(false);
|
||||
return;
|
||||
}
|
||||
|
||||
if (
|
||||
list[_i].scode != errorCode ||
|
||||
!(
|
||||
matchHostname(list[_i].host, req.headers.host) &&
|
||||
ipMatch(list[_i].ip, req.socket ? req.socket.localAddress : undefined)
|
||||
)
|
||||
) {
|
||||
getErrorFileName(list, callback, _i + 1);
|
||||
return;
|
||||
} else {
|
||||
fs.access(list[_i].path, fs.constants.F_OK, function (err) {
|
||||
if (err) {
|
||||
getErrorFileName(list, callback, _i + 1);
|
||||
} else {
|
||||
medCallback(list[_i].path);
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
getErrorFileName(config.errorPages, function (errorFile) {
|
||||
// Generate error stack if not provided
|
||||
if (Object.prototype.toString.call(stack) === "[object Error]")
|
||||
stack = generateErrorStack(stack);
|
||||
if (stack === undefined)
|
||||
stack = generateErrorStack(new Error("Unknown error"));
|
||||
|
||||
if (errorCode == 500 || errorCode == 502) {
|
||||
logFacilities.errmessage(
|
||||
"There was an error while processing the request!",
|
||||
);
|
||||
logFacilities.errmessage("Stack:");
|
||||
logFacilities.errmessage(stack);
|
||||
}
|
||||
|
||||
// Hide the error stack if specified
|
||||
if (config.stackHidden) stack = "[error stack hidden]";
|
||||
|
||||
// Validate the error code and handle unknown codes
|
||||
if (serverHTTPErrorDescs[errorCode] === undefined) {
|
||||
res.error(501, extName, stack);
|
||||
} else {
|
||||
// Process custom headers if provided
|
||||
let cheaders = { ...config.getCustomHeaders(), ...ch };
|
||||
|
||||
cheaders["Content-Type"] = "text/html; charset=utf-8";
|
||||
|
||||
// Set default Allow header for 405 error if not provided
|
||||
if (errorCode == 405 && !cheaders["Allow"])
|
||||
cheaders["Allow"] = "GET, POST, HEAD, OPTIONS";
|
||||
|
||||
// Read the error file and replace placeholders with error information
|
||||
fs.readFile(errorFile, function (err, data) {
|
||||
try {
|
||||
if (err) throw err;
|
||||
res.writeHead(errorCode, http.STATUS_CODES[errorCode], cheaders);
|
||||
res.responseEnd(
|
||||
data
|
||||
.toString()
|
||||
.replace(
|
||||
/{errorMessage}/g,
|
||||
errorCode.toString() +
|
||||
" " +
|
||||
http.STATUS_CODES[errorCode]
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">"),
|
||||
)
|
||||
.replace(/{errorDesc}/g, serverHTTPErrorDescs[errorCode])
|
||||
.replace(
|
||||
/{stack}/g,
|
||||
stack
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")
|
||||
.replace(/\r\n/g, "<br/>")
|
||||
.replace(/\n/g, "<br/>")
|
||||
.replace(/\r/g, "<br/>")
|
||||
.replace(/ {2}/g, " "),
|
||||
)
|
||||
.replace(
|
||||
/{path}/g,
|
||||
req.url
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">"),
|
||||
)
|
||||
.replace(
|
||||
/{server}/g,
|
||||
"" +
|
||||
(
|
||||
config.generateServerString() +
|
||||
(!config.exposeModsInErrorPages || extName == undefined
|
||||
? ""
|
||||
: " " + extName)
|
||||
)
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">") +
|
||||
(req.headers.host == undefined || req.isProxy
|
||||
? ""
|
||||
: " on " +
|
||||
String(req.headers.host)
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")),
|
||||
)
|
||||
.replace(
|
||||
/{contact}/g,
|
||||
config.serverAdministratorEmail
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")
|
||||
.replace(/\./g, "[dot]")
|
||||
.replace(/@/g, "[at]"),
|
||||
),
|
||||
); // Replace placeholders in error response
|
||||
} catch (err) {
|
||||
let additionalError = 500;
|
||||
// Handle additional error cases
|
||||
if (err.code == "ENOENT") {
|
||||
additionalError = 404;
|
||||
} else if (err.code == "ENOTDIR") {
|
||||
additionalError = 404; // Assume that file doesn't exist
|
||||
} else if (err.code == "EACCES") {
|
||||
additionalError = 403;
|
||||
} else if (err.code == "ENAMETOOLONG") {
|
||||
additionalError = 414;
|
||||
} else if (err.code == "EMFILE") {
|
||||
additionalError = 503;
|
||||
} else if (err.code == "ELOOP") {
|
||||
additionalError = 508;
|
||||
}
|
||||
|
||||
res.writeHead(errorCode, http.STATUS_CODES[errorCode], cheaders);
|
||||
res.write(
|
||||
(
|
||||
'<!DOCTYPE html><html><head><title>{errorMessage}</title><meta name="viewport" content="width=device-width, initial-scale=1.0" /><style>html{background-color:#dfffdf;color:#000000;font-family:FreeSans, Helvetica, Tahoma, Verdana, Arial, sans-serif;margin:0.75em}body{background-color:#ffffff;padding:0.5em 0.5em 0.1em;margin:0.5em auto;width:90%;max-width:800px;-webkit-box-shadow:0 5px 10px 0 rgba(0, 0, 0, 0.15);-moz-box-shadow:0 5px 10px 0 rgba(0, 0, 0, 0.15);box-shadow:0 5px 10px 0 rgba(0, 0, 0, 0.15)}h1{text-align:center;font-size:2.25em;margin:0.3em 0 0.5em}code{background-color:#dfffdf;-webkit-box-shadow:0 2px 4px 0 rgba(0, 0, 0, 0.1);-moz-box-shadow:0 2px 4px 0 rgba(0, 0, 0, 0.1);box-shadow:0 2px 4px 0 rgba(0, 0, 0, 0.1);display:block;padding:0.2em;font-family:"DejaVu Sans Mono", "Bitstream Vera Sans Mono", Hack, Menlo, Consolas, Monaco, monospace;font-size:0.85em;margin:auto;width:95%;max-width:600px}table{width:95%;border-collapse:collapse;margin:auto;overflow-wrap:break-word;word-wrap:break-word;word-break:break-all;word-break:break-word;position:relative;z-index:0}table tbody{background-color:#ffffff;color:#000000}table tbody:after{-webkit-box-shadow:0 4px 8px 0 rgba(0, 0, 0, 0.175);-moz-box-shadow:0 4px 8px 0 rgba(0, 0, 0, 0.175);box-shadow:0 4px 8px 0 rgba(0, 0, 0, 0.175);content:\' \';position:absolute;top:0;left:0;right:0;bottom:0;z-index:-1}table img{margin:0;display:inline}th,tr{padding:0.15em;text-align:center}th{background-color:#007000;color:#ffffff}th a{color:#ffffff}td,th{padding:0.225em}td{text-align:left}tr:nth-child(odd){background-color:#dfffdf}hr{color:#ffffff}@media screen and (prefers-color-scheme: dark){html{background-color:#002000;color:#ffffff}body{background-color:#000f00;-webkit-box-shadow:0 5px 10px 0 rgba(127, 127, 127, 0.15);-moz-box-shadow:0 5px 10px 0 rgba(127, 127, 127, 0.15);box-shadow:0 5px 10px 0 rgba(127, 127, 127, 0.15)}code{background-color:#002000;-webkit-box-shadow:0 2px 4px 0 rgba(127, 127, 127, 0.1);-moz-box-shadow:0 2px 4px 0 rgba(127, 127, 127, 0.1);box-shadow:0 2px 4px 0 rgba(127, 127, 127, 0.1)}a{color:#ffffff}a:hover{color:#00ff00}table tbody{background-color:#000f00;color:#ffffff}table tbody:after{-webkit-box-shadow:0 4px 8px 0 rgba(127, 127, 127, 0.175);-moz-box-shadow:0 4px 8px 0 rgba(127, 127, 127, 0.175);box-shadow:0 4px 8px 0 rgba(127, 127, 127, 0.175)}tr:nth-child(odd){background-color:#002000}}</style></head><body><h1>{errorMessage}</h1><p>{errorDesc}</p>' +
|
||||
(additionalError == 404
|
||||
? ""
|
||||
: "<p>Additionally, a {additionalError} error occurred while loading an error page.</p>") +
|
||||
"<p><i>{server}</i></p></body></html>"
|
||||
)
|
||||
.replace(
|
||||
/{errorMessage}/g,
|
||||
errorCode.toString() +
|
||||
" " +
|
||||
http.STATUS_CODES[errorCode]
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">"),
|
||||
)
|
||||
.replace(/{errorDesc}/g, serverHTTPErrorDescs[errorCode])
|
||||
.replace(
|
||||
/{stack}/g,
|
||||
stack
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")
|
||||
.replace(/\r\n/g, "<br/>")
|
||||
.replace(/\n/g, "<br/>")
|
||||
.replace(/\r/g, "<br/>")
|
||||
.replace(/ {2}/g, " "),
|
||||
)
|
||||
.replace(
|
||||
/{path}/g,
|
||||
req.url
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">"),
|
||||
)
|
||||
.replace(
|
||||
/{server}/g,
|
||||
"" +
|
||||
(
|
||||
config.generateServerString() +
|
||||
(!config.exposeModsInErrorPages || extName == undefined
|
||||
? ""
|
||||
: " " + extName)
|
||||
)
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">") +
|
||||
(req.headers.host == undefined || req.isProxy
|
||||
? ""
|
||||
: " on " +
|
||||
String(req.headers.host)
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")),
|
||||
)
|
||||
.replace(
|
||||
/{contact}/g,
|
||||
config.serverAdministratorEmail
|
||||
.replace(/&/g, "&")
|
||||
.replace(/</g, "<")
|
||||
.replace(/>/g, ">")
|
||||
.replace(/\./g, "[dot]")
|
||||
.replace(/@/g, "[at]"),
|
||||
)
|
||||
.replace(/{additionalError}/g, additionalError.toString()),
|
||||
); // Replace placeholders in error response
|
||||
res.end();
|
||||
}
|
||||
});
|
||||
}
|
||||
});
|
||||
};
|
||||
|
||||
// Function to perform HTTP redirection to a specified destination URL
|
||||
res.redirect = (destination, isTemporary, keepMethod, customHeaders) => {
|
||||
// If keepMethod is a object, then save it to customHeaders
|
||||
if (typeof keepMethod == "object") customHeaders = keepMethod;
|
||||
|
||||
// If isTemporary is a object, then save it to customHeaders
|
||||
if (typeof isTemporary == "object") customHeaders = isTemporary;
|
||||
|
||||
// If customHeaders are not provided, get the default custom headers
|
||||
if (customHeaders === undefined) customHeaders = config.getCustomHeaders();
|
||||
|
||||
// Set the "Location" header to the destination URL
|
||||
customHeaders["Location"] = destination;
|
||||
|
||||
// Determine the status code for redirection based on the isTemporary and keepMethod flags
|
||||
const statusCode = keepMethod
|
||||
? isTemporary
|
||||
? 307
|
||||
: 308
|
||||
: isTemporary
|
||||
? 302
|
||||
: 301;
|
||||
|
||||
// Write the response header with the appropriate status code and message
|
||||
res.writeHead(statusCode, http.STATUS_CODES[statusCode], customHeaders);
|
||||
|
||||
// Log the redirection message
|
||||
logFacilities.resmessage("Client redirected to " + destination);
|
||||
|
||||
// End the response
|
||||
res.end();
|
||||
|
||||
// Return from the function
|
||||
return;
|
||||
};
|
||||
|
||||
try {
|
||||
res.head = fs.existsSync("./.head")
|
||||
? fs.readFileSync("./.head").toString()
|
||||
: fs.existsSync("./head.html")
|
||||
? fs.readFileSync("./head.html").toString()
|
||||
: ""; // header
|
||||
res.foot = fs.existsSync("./.foot")
|
||||
? fs.readFileSync("./.foot").toString()
|
||||
: fs.existsSync("./foot.html")
|
||||
? fs.readFileSync("./foot.html").toString()
|
||||
: ""; // footer
|
||||
} catch (err) {
|
||||
res.error(500, err);
|
||||
}
|
||||
|
||||
// Authenticated user variable
|
||||
req.authUser = null;
|
||||
|
||||
if (req.url == "*") {
|
||||
// Handle "*" URL
|
||||
if (req.method == "OPTIONS") {
|
||||
// Respond with list of methods
|
||||
let hdss = config.getCustomHeaders();
|
||||
hdss["Allow"] = "GET, POST, HEAD, OPTIONS";
|
||||
res.writeHead(204, http.STATUS_CODES[204], hdss);
|
||||
res.end();
|
||||
return;
|
||||
} else {
|
||||
// SVR.JS doesn't understand that request, so throw an 400 error
|
||||
res.error(400);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (req.headers["expect"] && req.headers["expect"] != "100-continue") {
|
||||
// Expectations not met.
|
||||
res.error(417);
|
||||
return;
|
||||
}
|
||||
|
||||
if (req.method == "CONNECT") {
|
||||
// CONNECT requests should be handled in "connect" event.
|
||||
res.error(501);
|
||||
logFacilities.errmessage(
|
||||
"CONNECT requests aren't supported. Your JS runtime probably doesn't support 'connect' handler for HTTP library.",
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
if (!isForwardedValid) {
|
||||
logFacilities.errmessage("X-Forwarded-For header is invalid.");
|
||||
res.error(400);
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
req.parsedURL = new URL(
|
||||
req.url,
|
||||
"http" +
|
||||
(req.socket.encrypted ? "s" : "") +
|
||||
"://" +
|
||||
(req.headers.host
|
||||
? req.headers.host
|
||||
: config.domain
|
||||
? config.domain
|
||||
: "unknown.invalid"),
|
||||
);
|
||||
} catch (err) {
|
||||
res.error(400, err);
|
||||
return;
|
||||
}
|
||||
|
||||
next();
|
||||
};
|
||||
Reference in a new issue