#!/usr/bin/env node
'use strict';
/*
2022-09-14 Hyperling
Coding my own website rather than using WordPress or anything bloaty.
*/
//// Libraries ////
let express = require('express');
let app = express();
const execSync = require('child_process').execSync;
const fs = require('fs');
//// Global Variables ////
const DEBUG = false;
const app_name = "hyperling.com";
let pages = [];
const pages_dir = "./pages/";
const file_types = ["php", "sh"];
let ports = [];
// Check parameters for numeric port numbers.
process.argv.forEach(function (val, index, array) {
console.log("Parameter", index + ':', val, !isNaN(val));
if (!isNaN(val)) {
console.log("Adding Port", val)
ports.push(val);
}
});
// Default port if none were passed.
if (ports.length === 0) {
ports.push(8080);
}
const stringsToRemove = [
RegExp("#!/usr/bin/php\n", "g")
]
//// Functions ////
/* Code exists inside a main function so that we may use async/await.
*/
async function main() {
console.log("...Starting Main...");
// Getting dates in Node.js is awful, just use Linux.
const start_datetime = "" + await execSync('date "+%Y-%m-%dT%H:%M:%S%:z"');
const start_datetime_trimmed = start_datetime.trim();
console.log("Set app to return HTML documents.");
app.use(function (req, res, next) {
res.contentType('text/html');
next();
});
/* Loop through all file in the pages subdirectory and add the allowed
// file types into the pages array for automatic router creation.
*/
console.log("...Starting Main...");
let ls = await fs.promises.readdir(pages_dir);
if (DEBUG) console.log("DEBUG: Results of ls, ", ls);
for (let file of ls) {
let file_test = file.split(".");
let file_name = file_test[0];
let file_type = file_test[file_test.length - 1];
if (file_types.includes(file_type)) {
if (DEBUG) console.log("DEBUG: Hooray!", file, "is being added.");
pages[file_name] = pages_dir + file;
console.log(" * Added page", file);
} else {
if (DEBUG) console.log("DEBUG: ", file, "is not an approved type, skipping.");
}
}
console.log(" * Pages loaded: ", pages);
//return; // Stop execution FORTESTING
/* Create both an XML and HTML sitemap based on these entries. XML is used for
// bots like SEO scrapers. HTML will be for human users looking for a list of
// all pages. Some are not in the menu. Generated an example XML sitemap at
// www.xml-sitemaps.com then stripped it apart and made it dynamic.
*/
let sitemap_xml = `<?xml version="1.0" encoding="UTF-8"?>
<urlset
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"
>
<url>
<loc>https://hyperling.com/</loc>
<lastmod>`+start_datetime_trimmed+`</lastmod>
<priority>1.00</priority>
</url>
<url>
<loc>https://hyperling.com/sitemap/</loc>
<lastmod>`+start_datetime_trimmed+`</lastmod>
<priority>0.80</priority>
</url>
`;
let sitemap_html = `
<html><body>
<strong>Special Pages</strong>
<ul>
<li>
<b>Main Site</b>
(<a href="/">Local</a>)
(<a href="https://`+app_name+`/">Hardlink</a>)
</li>
<li>
<b>XML Site Map</b>
(<a href="/sitemap.xml">Local</a>)
(<a href="https://`+app_name+`/sitemap.xml">Hardlink</a>)
</li>
<li>
<b>HTML Site Map</b>
(<a href="/sitemap/">Local</a>)
(<a href="https://`+app_name+`/sitemap/">Hardlink</a>)
<i>[You are here!]</i>
</li>
</ul>
<strong>Web Pages (Alphabetical)</strong>
<ul>
`;
console.log("...Adding Routes...");
let router = express.Router();
/* AUTOMATIC METHOD BASED ON OBJECT/ARRAY OF WEB SCRIPTS
// Creates routes with the URL of the key and location of the value.
*/
for (let key in pages) {
console.log(" * Creating router for", key);
router.get("/" + key, function (req,res) {
console.log(key, "fulfilling request to", req.socket.remoteAddress, "asking for", req.url);
let html = "" + execSync(pages[key]);
stringsToRemove.forEach(string => {
html = html.replace(string, "");
});
res.send(html);
});
/* Append the page to the sitemap variables.
*/
console.log(" * * Adding to sitemap.xml");
sitemap_xml = sitemap_xml + `
<url>
<loc>https://hyperling.com/`+key+`/</loc>
<lastmod>`+start_datetime_trimmed+`</lastmod>
<priority>0.80</priority>
</url>
`;
console.log(" * * Adding to sitemap.html");
sitemap_html = sitemap_html + `
<li>
<b>`+key+`</b>
(<a href="/`+key+`/">Local</a>)
(<a href="https://`+app_name+`/`+key+`/">Hardlink</a>)
</li>
`;
}
/* Close the sitemap variables
*/
sitemap_xml = sitemap_xml + `
</urlset>
`;
sitemap_html = sitemap_html + `
</ul></body></html>
`;
// Provide sitemap.xml file for "SEO".
console.log(" * Creating router for sitemap.xml");
router.get('/sitemap.xml', function (req, res) {
console.log("sitemap.xml being provided to", req.socket.remoteAddress)
res.contentType('text/xml');
res.send(sitemap_xml);
});
// Provide human-usable sitemap links.
console.log(" * Creating router for sitemap*");
router.get('/sitemap*', function (req, res) {
console.log("sitemap.html being provided to", req.socket.remoteAddress)
res.send(sitemap_html);
});
// Return a resource from the files folder.
console.log(" * Creating router for files");
router.get('/files*', function (req, res) {
console.log("file response to", req.socket.remoteAddress, "asking for", req.url)
// Build variables.
const file = "." + req.path;
const extensions = req.path.split(".");
const extension = extensions[extensions.length-1];
// Check extension and guess a MIME type.
let mime;
switch (extension) {
case "apk":
mime = "application/vnd.android.package-archive";
break;
case "jpg" || "jpeg":
mime = "image/jpeg";
break;
case "png":
mime = "image/png";
break;
case "html":
mime = "text/html";
break;
case "zip":
mime = "application/zip";
break;
case "txt" || "csv" || "md":
mime = "text/*";
break;
default:
mime = "application/" + extension;
break;
}
// Return the file
res.contentType(mime);
let f = fs.createReadStream(file)
.on("error", function(e) {
res.contentType("text/plain");
res.send(404, "File Not Found");
})
.pipe(res)
;
});
// Originally a test, now a catch-all redirection to Home!
console.log(" * Creating router for redirection");
router.get('/*', function (req, res) {
// WARNING: These are huge so only look when you need to.
//console.log(req);
//console.log(res);
console.log("*wildcard* replying to", req.socket.remoteAddress, "asking for", req.url)
let html = "" + execSync("./pages/home.php");
stringsToRemove.forEach(string => {
html = html.replace(string, "");
});
res.send(html);
});
app.use('', router);
console.log("...Adding Ports...");
ports.forEach(port => {
app.listen(port);
console.log(" * Now listening on port " + port + ".");
});
console.log("Done! Now we wait...");
}
//// Program Execution ////
main();