DorianNiemiecSVRJS/svrjs
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Add client error handler, and lint out index.js

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Dorian Niemiec 2024-08-25 11:32:03 +02:00
parent 0085ff740d
commit 726d161a64
1 changed files with 727 additions and 72 deletions
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785
src/index.js
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@ -31,13 +31,30 @@ let disableMods = false;
// Handle command line arguments
const args = process.argv;
for (let i = (process.argv[0].indexOf("node") > -1 || process.argv[0].indexOf("bun") > -1 ? 2 : 1); i < args.length; i++) {
if (args[i] == "-h" || args[i] == "--help" || args[i] == "-?" || args[i] == "/h" || args[i] == "/?") {
for (
let i =
process.argv[0].indexOf("node") > -1 || process.argv[0].indexOf("bun") > -1
? 2
: 1;
i < args.length;
i++
) {
if (
args[i] == "-h" ||
args[i] == "--help" ||
args[i] == "-?" ||
args[i] == "/h" ||
args[i] == "/?"
) {
console.log("SVR.JS usage:");
console.log("node svr.js [-h] [--help] [-?] [/h] [/?] [--secure] [--reset] [--clean] [--disable-mods] [--single-threaded] [-v] [--version]");
console.log(
"node svr.js [-h] [--help] [-?] [/h] [/?] [--secure] [--reset] [--clean] [--disable-mods] [--single-threaded] [-v] [--version]",
);
console.log("-h -? /h /? --help -- Displays help");
console.log("--clean -- Cleans up files created by SVR.JS");
console.log("--reset -- Resets SVR.JS to default settings (WARNING: DANGEROUS)");
console.log(
"--reset -- Resets SVR.JS to default settings (WARNING: DANGEROUS)",
);
console.log("--secure -- Runs HTTPS server");
console.log("--disable-mods -- Disables mods (safe mode)");
console.log("--single-threaded -- Run single-threaded");
@ -75,10 +92,14 @@ for (let i = (process.argv[0].indexOf("node") > -1 || process.argv[0].indexOf("b
} else {
console.log("Unrecognized argument: " + args[i]);
console.log("SVR.JS usage:");
console.log("node svr.js [-h] [--help] [-?] [/h] [/?] [--secure] [--reset] [--clean] [--disable-mods] [--single-threaded] [-v] [--version]");
console.log(
"node svr.js [-h] [--help] [-?] [/h] [/?] [--secure] [--reset] [--clean] [--disable-mods] [--single-threaded] [-v] [--version]",
);
console.log("-h -? /h /? --help -- Displays help");
console.log("--clean -- Cleans up files created by SVR.JS");
console.log("--reset -- Resets SVR.JS to default settings (WARNING: DANGEROUS)");
console.log(
"--reset -- Resets SVR.JS to default settings (WARNING: DANGEROUS)",
);
console.log("--secure -- Runs HTTPS server");
console.log("--disable-mods -- Disables mods (safe mode)");
console.log("--single-threaded -- Run single-threaded");
@ -88,13 +109,17 @@ for (let i = (process.argv[0].indexOf("node") > -1 || process.argv[0].indexOf("b
}
// Create log, mods and temp directories, if they don't exist.
if (!fs.existsSync(process.dirname + "/log")) fs.mkdirSync(process.dirname + "/log");
if (!fs.existsSync(process.dirname + "/mods")) fs.mkdirSync(process.dirname + "/mods");
if (!fs.existsSync(process.dirname + "/temp")) fs.mkdirSync(process.dirname + "/temp");
if (!fs.existsSync(process.dirname + "/log"))
fs.mkdirSync(process.dirname + "/log");
if (!fs.existsSync(process.dirname + "/mods"))
fs.mkdirSync(process.dirname + "/mods");
if (!fs.existsSync(process.dirname + "/temp"))
fs.mkdirSync(process.dirname + "/temp");
const cluster = require("./utils/clusterBunShim.js"); // Cluster module with shim for Bun
//const generateErrorStack = require("./utils/generateErrorStack.js");
//const getOS = require("./utils/getOS.js");
const generateErrorStack = require("./utils/generateErrorStack.js");
const serverHTTPErrorDescs = require("../res/httpErrorDescriptions.js");
const getOS = require("./utils/getOS.js");
//const parseURL = require("./utils/urlParser.js");
//const fixNodeMojibakeURL = require("./utils/urlMojibakeFixer.js");
@ -117,57 +142,108 @@ if (fs.existsSync(__dirname + "/config.json")) {
// TODO: configuration from config.json
if (process.serverConfig.users === undefined) process.serverConfig.users = [];
if (process.serverConfig.secure === undefined) process.serverConfig.secure = false;
if (process.serverConfig.secure === undefined)
process.serverConfig.secure = false;
if (forceSecure) process.serverConfig.secure = true;
if (process.serverConfig.secure) {
if (process.serverConfig.key === undefined) process.serverConfig.key = "cert/key.key";
if (process.serverConfig.cert === undefined) process.serverConfig.cert = "cert/cert.crt";
if (process.serverConfig.sport === undefined) process.serverConfig.sport = 443;
if (process.serverConfig.spubport === undefined) process.serverConfig.spubport = 443;
if (process.serverConfig.key === undefined)
process.serverConfig.key = "cert/key.key";
if (process.serverConfig.cert === undefined)
process.serverConfig.cert = "cert/cert.crt";
if (process.serverConfig.sport === undefined)
process.serverConfig.sport = 443;
if (process.serverConfig.spubport === undefined)
process.serverConfig.spubport = 443;
if (process.serverConfig.sni === undefined) process.serverConfig.sni = {};
if (process.serverConfig.enableOCSPStapling === undefined) process.serverConfig.enableOCSPStapling = false;
if (process.serverConfig.enableOCSPStapling === undefined)
process.serverConfig.enableOCSPStapling = false;
}
if (process.serverConfig.port === undefined) process.serverConfig.port = 80;
if (process.serverConfig.pubport === undefined) process.serverConfig.pubport = 80;
if (process.serverConfig.domain === undefined && process.serverConfig.domian !== undefined) process.serverConfig.domain = process.serverConfig.domian;
if (process.serverConfig.pubport === undefined)
process.serverConfig.pubport = 80;
if (
process.serverConfig.domain === undefined &&
process.serverConfig.domian !== undefined
)
process.serverConfig.domain = process.serverConfig.domian;
delete process.serverConfig.domian;
if (process.serverConfig.page404 === undefined) process.serverConfig.page404 = "404.html";
if (process.serverConfig.page404 === undefined)
process.serverConfig.page404 = "404.html";
process.serverConfig.timestamp = new Date().getTime();
if (process.serverConfig.blacklist === undefined) process.serverConfig.blacklist = [];
if (process.serverConfig.nonStandardCodes === undefined) process.serverConfig.nonStandardCodes = [];
if (process.serverConfig.enableCompression === undefined) process.serverConfig.enableCompression = true;
if (process.serverConfig.customHeaders === undefined) process.serverConfig.customHeaders = {};
if (process.serverConfig.enableHTTP2 === undefined) process.serverConfig.enableHTTP2 = false;
if (process.serverConfig.enableLogging === undefined) process.serverConfig.enableLogging = true;
if (process.serverConfig.enableDirectoryListing === undefined) process.serverConfig.enableDirectoryListing = true;
if (process.serverConfig.enableDirectoryListingWithDefaultHead === undefined) process.serverConfig.enableDirectoryListingWithDefaultHead = false;
if (process.serverConfig.serverAdministratorEmail === undefined) process.serverConfig.serverAdministratorEmail = "[no contact information]";
if (process.serverConfig.stackHidden === undefined) process.serverConfig.stackHidden = false;
if (process.serverConfig.enableRemoteLogBrowsing === undefined) process.serverConfig.enableRemoteLogBrowsing = false;
if (process.serverConfig.exposeServerVersion === undefined) process.serverConfig.exposeServerVersion = true;
if (process.serverConfig.disableServerSideScriptExpose === undefined) process.serverConfig.disableServerSideScriptExpose = true;
if (process.serverConfig.allowStatus === undefined) process.serverConfig.allowStatus = true;
if (process.serverConfig.rewriteMap === undefined) process.serverConfig.rewriteMap = [];
if (process.serverConfig.dontCompress === undefined) process.serverConfig.dontCompress = ["/.*\\.ipxe$/", "/.*\\.(?:jpe?g|png|bmp|tiff|jfif|gif|webp)$/", "/.*\\.(?:[id]mg|iso|flp)$/", "/.*\\.(?:zip|rar|bz2|[gb7x]z|lzma|tar)$/", "/.*\\.(?:mp[34]|mov|wm[av]|avi|webm|og[gv]|mk[va])$/"];
if (process.serverConfig.enableIPSpoofing === undefined) process.serverConfig.enableIPSpoofing = false;
if (process.serverConfig.disableNonEncryptedServer === undefined) process.serverConfig.disableNonEncryptedServer = false;
if (process.serverConfig.disableToHTTPSRedirect === undefined) process.serverConfig.disableToHTTPSRedirect = false;
if (process.serverConfig.enableETag === undefined) process.serverConfig.enableETag = true;
if (process.serverConfig.disableUnusedWorkerTermination === undefined) process.serverConfig.disableUnusedWorkerTermination = false;
if (process.serverConfig.rewriteDirtyURLs === undefined) process.serverConfig.rewriteDirtyURLs = false;
if (process.serverConfig.errorPages === undefined) process.serverConfig.errorPages = [];
if (process.serverConfig.useWebRootServerSideScript === undefined) process.serverConfig.useWebRootServerSideScript = true;
if (process.serverConfig.exposeModsInErrorPages === undefined) process.serverConfig.exposeModsInErrorPages = true;
if (process.serverConfig.disableTrailingSlashRedirects === undefined) process.serverConfig.disableTrailingSlashRedirects = false;
if (process.serverConfig.environmentVariables === undefined) process.serverConfig.environmentVariables = {};
if (process.serverConfig.customHeadersVHost === undefined) process.serverConfig.customHeadersVHost = [];
if (process.serverConfig.enableDirectoryListingVHost === undefined) process.serverConfig.enableDirectoryListingVHost = [];
if (process.serverConfig.wwwrootPostfixesVHost === undefined) process.serverConfig.wwwrootPostfixesVHost = [];
if (process.serverConfig.wwwrootPostfixPrefixesVHost === undefined) process.serverConfig.wwwrootPostfixPrefixesVHost = [];
if (process.serverConfig.allowDoubleSlashes === undefined) process.serverConfig.allowDoubleSlashes = false;
if (process.serverConfig.allowPostfixDoubleSlashes === undefined) process.serverConfig.allowPostfixDoubleSlashes = false;
if (process.serverConfig.optOutOfStatisticsServer === undefined) process.serverConfig.optOutOfStatisticsServer = false;
if (process.serverConfig.blacklist === undefined)
process.serverConfig.blacklist = [];
if (process.serverConfig.nonStandardCodes === undefined)
process.serverConfig.nonStandardCodes = [];
if (process.serverConfig.enableCompression === undefined)
process.serverConfig.enableCompression = true;
if (process.serverConfig.customHeaders === undefined)
process.serverConfig.customHeaders = {};
if (process.serverConfig.enableHTTP2 === undefined)
process.serverConfig.enableHTTP2 = false;
if (process.serverConfig.enableLogging === undefined)
process.serverConfig.enableLogging = true;
if (process.serverConfig.enableDirectoryListing === undefined)
process.serverConfig.enableDirectoryListing = true;
if (process.serverConfig.enableDirectoryListingWithDefaultHead === undefined)
process.serverConfig.enableDirectoryListingWithDefaultHead = false;
if (process.serverConfig.serverAdministratorEmail === undefined)
process.serverConfig.serverAdministratorEmail = "[no contact information]";
if (process.serverConfig.stackHidden === undefined)
process.serverConfig.stackHidden = false;
if (process.serverConfig.enableRemoteLogBrowsing === undefined)
process.serverConfig.enableRemoteLogBrowsing = false;
if (process.serverConfig.exposeServerVersion === undefined)
process.serverConfig.exposeServerVersion = true;
if (process.serverConfig.disableServerSideScriptExpose === undefined)
process.serverConfig.disableServerSideScriptExpose = true;
if (process.serverConfig.allowStatus === undefined)
process.serverConfig.allowStatus = true;
if (process.serverConfig.rewriteMap === undefined)
process.serverConfig.rewriteMap = [];
if (process.serverConfig.dontCompress === undefined)
process.serverConfig.dontCompress = [
"/.*\\.ipxe$/",
"/.*\\.(?:jpe?g|png|bmp|tiff|jfif|gif|webp)$/",
"/.*\\.(?:[id]mg|iso|flp)$/",
"/.*\\.(?:zip|rar|bz2|[gb7x]z|lzma|tar)$/",
"/.*\\.(?:mp[34]|mov|wm[av]|avi|webm|og[gv]|mk[va])$/",
];
if (process.serverConfig.enableIPSpoofing === undefined)
process.serverConfig.enableIPSpoofing = false;
if (process.serverConfig.disableNonEncryptedServer === undefined)
process.serverConfig.disableNonEncryptedServer = false;
if (process.serverConfig.disableToHTTPSRedirect === undefined)
process.serverConfig.disableToHTTPSRedirect = false;
if (process.serverConfig.enableETag === undefined)
process.serverConfig.enableETag = true;
if (process.serverConfig.disableUnusedWorkerTermination === undefined)
process.serverConfig.disableUnusedWorkerTermination = false;
if (process.serverConfig.rewriteDirtyURLs === undefined)
process.serverConfig.rewriteDirtyURLs = false;
if (process.serverConfig.errorPages === undefined)
process.serverConfig.errorPages = [];
if (process.serverConfig.useWebRootServerSideScript === undefined)
process.serverConfig.useWebRootServerSideScript = true;
if (process.serverConfig.exposeModsInErrorPages === undefined)
process.serverConfig.exposeModsInErrorPages = true;
if (process.serverConfig.disableTrailingSlashRedirects === undefined)
process.serverConfig.disableTrailingSlashRedirects = false;
if (process.serverConfig.environmentVariables === undefined)
process.serverConfig.environmentVariables = {};
if (process.serverConfig.customHeadersVHost === undefined)
process.serverConfig.customHeadersVHost = [];
if (process.serverConfig.enableDirectoryListingVHost === undefined)
process.serverConfig.enableDirectoryListingVHost = [];
if (process.serverConfig.wwwrootPostfixesVHost === undefined)
process.serverConfig.wwwrootPostfixesVHost = [];
if (process.serverConfig.wwwrootPostfixPrefixesVHost === undefined)
process.serverConfig.wwwrootPostfixPrefixesVHost = [];
if (process.serverConfig.allowDoubleSlashes === undefined)
process.serverConfig.allowDoubleSlashes = false;
if (process.serverConfig.allowPostfixDoubleSlashes === undefined)
process.serverConfig.allowPostfixDoubleSlashes = false;
if (process.serverConfig.optOutOfStatisticsServer === undefined)
process.serverConfig.optOutOfStatisticsServer = false;
process.serverConfig.version = version; // Compatiblity for very old SVR.JS mods
@ -190,9 +266,14 @@ if (!process.stdout.isTTY && !inspectorURL) {
process.stdout._writev = function () {};
}
var wwwrootError = null;
let wwwrootError = null;
try {
if (cluster.isPrimary || cluster.isPrimary === undefined) process.chdir(process.serverConfig.wwwroot != undefined ? process.serverConfig.wwwroot : process.dirname);
if (cluster.isPrimary || cluster.isPrimary === undefined)
process.chdir(
process.serverConfig.wwwroot != undefined
? process.serverConfig.wwwroot
: process.dirname,
);
} catch (err) {
wwwrootError = err;
}
@ -211,7 +292,7 @@ let middleware = [
// TODO: SVR.JS mods go here
require("./middleware/defaultHandlerChecks.js"),
require("./middleware/status.js"),
require("./middleware/staticFileServingAndDirectoryListings.js")
require("./middleware/staticFileServingAndDirectoryListings.js"),
];
function addMiddleware(mw) {
@ -221,7 +302,8 @@ function addMiddleware(mw) {
function requestHandler(req, res) {
let reqIdInt = Math.floor(Math.random() * 16777216);
if (reqIdInt == 16777216) reqIdInt = 0;
const reqId = "0".repeat(6 - reqIdInt.toString(16).length) + reqIdInt.toString(16);
const reqId =
"0".repeat(6 - reqIdInt.toString(16).length) + reqIdInt.toString(16);
// SVR.JS log facilities
const logFacilities = {
@ -231,7 +313,7 @@ function requestHandler(req, res) {
errmessage: (msg) => serverconsole.errmessage(msg, reqId),
locerrmessage: (msg) => serverconsole.locerrmessage(msg, reqId),
locwarnmessage: (msg) => serverconsole.locwarnmessage(msg, reqId),
locmessage: (msg) => serverconsole.locmessage(msg, reqId)
locmessage: (msg) => serverconsole.locmessage(msg, reqId),
};
// SVR.JS configuration object (modified)
@ -248,11 +330,13 @@ function requestHandler(req, res) {
} catch (err) {
if (res.error) res.error(500, err);
else {
logFacilities.errmessage("There was an error while processing the request!");
logFacilities.errmessage(
"There was an error while processing the request!",
);
logFacilities.errmessage("Stack:");
logFacilities.errmessage(err.stack);
res.writeHead(500, "Internal Server Error", {
Server: generateServerString(config.exposeServerVersion)
Server: generateServerString(config.exposeServerVersion),
});
res.end("Error while executing the request handler");
}
@ -261,19 +345,590 @@ function requestHandler(req, res) {
if (res.error) res.error(404);
else {
res.writeHead(404, "Not Found", {
Server: generateServerString(config.exposeServerVersion)
Server: generateServerString(config.exposeServerVersion),
});
res.end("Request handler missing");
}
}
}
};
// Handle middleware
next();
}
function clientErrorHandler(err, socket) {
const config = Object.assign(process.serverConfig);
config.generateServerString = () =>
generateServerString(config.exposeServerVersion);
// getCustomHeaders() in SVR.JS 3.x
config.getCustomHeaders = () => Object.assign(config.customHeaders);
// Prevent multiple error handlers from one request
if (socket.__assigned__) {
return;
} else {
socket.__assigned__ = true;
}
// Estimate fromMain from SVR.JS 3.x
let fromMain = !(
config.secure &&
!socket.encrypted &&
socket.localPort == config.sport
);
// Define response object similar to Node.JS native one
let res = {
socket: socket,
write: (x) => {
if (err.code === "ECONNRESET" || !socket.writable) {
return;
}
socket.write(x);
},
end: (x) => {
if (err.code === "ECONNRESET" || !socket.writable) {
return;
}
socket.end(x, function () {
try {
socket.destroy();
} catch (err) {
// Socket is probably already destroyed
}
});
},
writeHead: (code, name, headers) => {
if (code >= 400 && code <= 499) process.err4xxcounter++;
if (code >= 500 && code <= 599) process.err5xxcounter++;
let head = "HTTP/1.1 " + code.toString() + " " + name + "\r\n";
headers = Object.assign(headers);
headers["Date"] = new Date().toGMTString();
headers["Connection"] = "close";
Object.keys(headers).forEach(function (headername) {
if (headername.toLowerCase() == "set-cookie") {
headers[headername].forEach(function (headerValueS) {
if (
headername.match(/[^\x09\x20-\x7e\x80-\xff]|.:/) ||
headerValueS.match(/[^\x09\x20-\x7e\x80-\xff]/)
)
throw new Error("Invalid header!!! (" + headername + ")");
head += headername + ": " + headerValueS;
});
} else {
if (
headername.match(/[^\x09\x20-\x7e\x80-\xff]|.:/) ||
headers[headername].match(/[^\x09\x20-\x7e\x80-\xff]/)
)
throw new Error("Invalid header!!! (" + headername + ")");
head += headername + ": " + headers[headername];
}
head += "\r\n";
});
head += "\r\n";
res.write(head);
},
};
let reqIdInt = Math.floor(Math.random() * 16777216);
if (reqIdInt == 16777216) reqIdInt = 0;
let reqId =
"0".repeat(6 - reqIdInt.toString(16).length) + reqIdInt.toString(16);
// SVR.JS log facilities
const logFacilities = {
climessage: (msg) => serverconsole.climessage(msg, reqId),
reqmessage: (msg) => serverconsole.reqmessage(msg, reqId),
resmessage: (msg) => serverconsole.resmessage(msg, reqId),
errmessage: (msg) => serverconsole.errmessage(msg, reqId),
locerrmessage: (msg) => serverconsole.locerrmessage(msg, reqId),
locwarnmessage: (msg) => serverconsole.locwarnmessage(msg, reqId),
locmessage: (msg) => serverconsole.locmessage(msg, reqId),
};
socket.on("close", function (hasError) {
if (
!hasError ||
err.code == "ERR_SSL_HTTP_REQUEST" ||
err.message.indexOf("http request") != -1
)
logFacilities.locmessage("Client disconnected.");
else logFacilities.locmessage("Client disconnected due to error.");
});
socket.on("error", function () {});
// Header and footer placeholders
let head = "";
let foot = "";
const responseEnd = (body) => {
// If body is Buffer, then it is converted to String anyway.
res.write(head + body + foot);
res.end();
};
// Server error calling method
const callServerError = (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
const getErrorFileName = (list, callback, _i) => {
if (
err.code == "ERR_SSL_HTTP_REQUEST" &&
process.version &&
parseInt(process.version.split(".")[0].substring(1)) >= 16
) {
// Disable custom error page for HTTP SSL error
callback(errorCode.toString() + ".html");
return;
}
const 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) {
callServerError(500, err2);
}
},
);
} else {
try {
callback(config.page404);
} catch (err2) {
callServerError(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) {
callServerError(500, err2);
}
},
);
}
}
};
if (!_i) _i = 0;
if (_i >= list.length) {
medCallback(false);
return;
}
if (list[_i].scode != errorCode) {
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) {
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);
}
if (config.stackHidden) stack = "[error stack hidden]";
if (serverHTTPErrorDescs[errorCode] === undefined) {
callServerError(501, extName, stack);
} else {
let cheaders = { ...config.getCustomHeaders(), ...ch };
cheaders["Content-Type"] = "text/html; charset=utf-8";
if (errorCode == 405 && !cheaders["Allow"])
cheaders["Allow"] = "GET, POST, HEAD, OPTIONS";
if (
err.code == "ERR_SSL_HTTP_REQUEST" &&
process.version &&
parseInt(process.version.split(".")[0].substring(1)) >= 16
) {
// Disable custom error page for HTTP SSL error
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><p><i>{server}</i></p></body></html>'
.replace(
/{errorMessage}/g,
errorCode.toString() +
" " +
http.STATUS_CODES[errorCode]
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;"),
)
.replace(/{errorDesc}/g, serverHTTPErrorDescs[errorCode])
.replace(
/{stack}/g,
stack
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/\r\n/g, "<br/>")
.replace(/\n/g, "<br/>")
.replace(/\r/g, "<br/>")
.replace(/ {2}/g, "&nbsp;&nbsp;"),
)
.replace(
/{server}/g,
"" +
(
config.generateServerString() +
(!config.exposeModsInErrorPages || extName == undefined
? ""
: " " + extName)
)
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;"),
)
.replace(
/{contact}/g,
config.serverAdministratorEmail
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/\./g, "[dot]")
.replace(/@/g, "[at]"),
),
);
res.end();
} else {
fs.readFile(errorFile, function (err, data) {
try {
if (err) throw err;
res.writeHead(errorCode, http.STATUS_CODES[errorCode], cheaders);
responseEnd(
data
.toString()
.replace(
/{errorMessage}/g,
errorCode.toString() +
" " +
http.STATUS_CODES[errorCode]
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;"),
)
.replace(/{errorDesc}/g, serverHTTPErrorDescs[errorCode])
.replace(
/{stack}/g,
stack
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/\r\n/g, "<br/>")
.replace(/\n/g, "<br/>")
.replace(/\r/g, "<br/>")
.replace(/ {2}/g, "&nbsp;&nbsp;"),
)
.replace(
/{server}/g,
"" +
(
config.generateServerString() +
(!config.exposeModsInErrorPages || extName == undefined
? ""
: " " + extName)
)
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;"),
)
.replace(
/{contact}/g,
config.serverAdministratorEmail
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/\./g, "[dot]")
.replace(/@/g, "[at]"),
),
);
} catch (err) {
let additionalError = 500;
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, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;"),
)
.replace(/{errorDesc}/g, serverHTTPErrorDescs[errorCode])
.replace(
/{stack}/g,
stack
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/\r\n/g, "<br/>")
.replace(/\n/g, "<br/>")
.replace(/\r/g, "<br/>")
.replace(/ {2}/g, "&nbsp;&nbsp;"),
)
.replace(
/{server}/g,
(config.generateServerString() +
(config.exposeModsInErrorPages || extName == undefined)
? ""
: " " + extName
)
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;"),
)
.replace(
/{contact}/g,
config.serverAdministratorEmail
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/\./g, "[dot]")
.replace(/@/g, "[at]"),
)
.replace(/{additionalError}/g, additionalError.toString()),
);
res.end();
}
});
}
}
});
};
let reqip = socket.remoteAddress;
let reqport = socket.remotePort;
process.reqcounter++;
process.malformedcounter++;
logFacilities.locmessage(
"Somebody connected to " +
(config.secure && fromMain
? (typeof config.sport == "number" ? "port " : "socket ") + config.sport
: (typeof config.port == "number" ? "port " : "socket ") +
config.port) +
"...",
);
logFacilities.reqmessage(
"Client " +
(!reqip || reqip == ""
? "[unknown client]"
: reqip +
(reqport && reqport !== 0 && reqport != "" ? ":" + reqport : "")) +
" sent invalid request.",
);
try {
head = fs.existsSync("./.head")
? fs.readFileSync("./.head").toString()
: fs.existsSync("./head.html")
? fs.readFileSync("./head.html").toString()
: ""; // header
foot = fs.existsSync("./.foot")
? fs.readFileSync("./.foot").toString()
: fs.existsSync("./foot.html")
? fs.readFileSync("./foot.html").toString()
: ""; // footer
if (
(err.code &&
(err.code.indexOf("ERR_SSL_") == 0 ||
err.code.indexOf("ERR_TLS_") == 0)) ||
(!err.code && err.message.indexOf("SSL routines") != -1)
) {
if (
err.code == "ERR_SSL_HTTP_REQUEST" ||
err.message.indexOf("http request") != -1
) {
logFacilities.errmessage("Client sent HTTP request to HTTPS port.");
callServerError(497);
return;
} else {
logFacilities.errmessage(
"An SSL error occured: " + (err.code ? err.code : err.message),
);
callServerError(400);
return;
}
}
if (err.code && err.code.indexOf("ERR_HTTP2_") == 0) {
logFacilities.errmessage("An HTTP/2 error occured: " + err.code);
callServerError(400);
return;
}
if (err.code && err.code == "ERR_HTTP_REQUEST_TIMEOUT") {
logFacilities.errmessage("Client timed out.");
callServerError(408);
return;
}
if (!err.rawPacket) {
logFacilities.errmessage("Connection ended prematurely.");
callServerError(400);
return;
}
const packetLines = err.rawPacket.toString().split("\r\n");
if (packetLines.length == 0) {
logFacilities.errmessage("Invalid request.");
callServerError(400);
return;
}
const checkHeaders = (beginsFromFirst) => {
for (let i = beginsFromFirst ? 0 : 1; i < packetLines.length; i++) {
const header = packetLines[i];
if (header == "")
return false; // Beginning of body
else if (header.indexOf(":") < 1) {
logFacilities.errmessage("Invalid header.");
callServerError(400);
return true;
} else if (header.length > 8192) {
logFacilities.errmessage("Header too large.");
callServerError(431); // Headers too large
return true;
}
}
return false;
};
const packetLine1 = packetLines[0].split(" ");
let method = "GET";
let httpVersion = "HTTP/1.1";
if (String(packetLine1[0]).indexOf(":") > 0) {
if (!checkHeaders(true)) {
logFacilities.errmessage(
"The request is invalid (it may be a part of larger invalid request).",
);
callServerError(400); // Also malformed Packet
return;
}
}
if (String(packetLine1[0]).length < 50) method = packetLine1.shift();
if (String(packetLine1[packetLine1.length - 1]).length < 50)
httpVersion = packetLine1.pop();
if (packetLine1.length != 1) {
logFacilities.errmessage("The head of request is invalid.");
callServerError(400); // Malformed Packet
} else if (!httpVersion.toString().match(/^HTTP[\/]/i)) {
logFacilities.errmessage("Invalid protocol.");
callServerError(400); // bad protocol version
} else if (http.METHODS.indexOf(method) == -1) {
logFacilities.errmessage("Invalid method.");
callServerError(405); // Also malformed Packet
} else {
if (checkHeaders(false)) return;
if (packetLine1[0].length > 255) {
logFacilities.errmessage("URI too long.");
callServerError(414); // Also malformed Packet
} else {
logFacilities.errmessage("The request is invalid.");
callServerError(400); // Also malformed Packet
}
}
} catch (err) {
logFacilities.errmessage(
"There was an error while determining type of malformed request.",
);
callServerError(400);
}
}
// Create HTTP server
http.createServer(requestHandler).listen(3000);
http
.createServer(requestHandler)
.on("clientError", clientErrorHandler)
.listen(3000);
if (wwwrootError) throw wwwrootError;
if (configJSONRErr) throw configJSONRErr;