199 lines
6.9 KiB
JavaScript
Executable File
199 lines
6.9 KiB
JavaScript
Executable File
const express = require('express');
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const crypto = require('crypto'); // For encrypting passwords
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const { fromUnixTime, format, getUnixTime } = require("date-fns")
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const fs = require('fs');
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const users = require('./users.js');
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const posts = require('./posts.js');
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const config = require('./config.js');
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const app = express();
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const port = 8080;
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app.use(express.urlencoded({ extended: true }));
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app.use(express.json());
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app.use(express.static(config.root_path));
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function get_userID(username) {
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for (let i = 0; i < users.users.length; i++) {
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if (users.users[i]['username'] == username) {
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return i
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}
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}
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return -1
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}
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function unix_time_to_date_format(unix_time) {
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date = fromUnixTime(unix_time)
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formatted_date = format(date, config.date_format)
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return formatted_date
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}
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function unix_time_to_rss_date(unix_time) {
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date = fromUnixTime(unix_time)
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formatted_date = format(date, "EEE, dd MMM yyyy HH:mm:ss")
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return `${formatted_date} ${config.time_zone}`
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}
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function hyperlink_tags(tags) {
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string = ""
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for (let tag_index = 0; tag_index < tags.length; tag_index++) {
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string += `<a href="/tag/${tags[tag_index]}">${tags[tag_index]}</a>`
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if (tag_index < tags.length - 1) {
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string += ", ";
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}
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}
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return string
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}
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function replace_format_indicators(input_string, post_index=0, tag_name="tag") {
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post_object = posts.posts[post_index]
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output_string = input_string
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.replaceAll("%A", (post_object["tags"]))
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.replaceAll("%B", (hyperlink_tags(post_object["tags"])))
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.replaceAll("%C", post_object["content"].replaceAll("\n","<br/>"))
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.replaceAll("%D", unix_time_to_date_format(post_object["pubdate"]))
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.replaceAll("%E", unix_time_to_date_format(post_object["editdate"]))
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.replaceAll("%F", users.users[post_object["userID"]]['prettyname'])
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.replaceAll("%G", tag_name)
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.replaceAll("%I", users.users[post_object['userID']]['description'])
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.replaceAll("%L", `/post/${post_index}`)
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.replaceAll("%N", users.users[post_object["userID"]]['username'])
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.replaceAll("%P", "/post")
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.replaceAll("%O", "/edit")
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.replaceAll("%R", "/rss")
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.replaceAll("%S", config.seperator)
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.replaceAll("%T", post_object["title"])
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.replaceAll("%U", `/user/${users.users[post_object["userID"]]['username']}`)
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.replaceAll("%Y", config.site_name)
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.replaceAll("%W", config.site_description)
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return output_string
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}
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app.get(config.rss_path, (req,res) => {
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if (config.rss == false) {
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res.send("Sorry, RSS is disabled!")
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}
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else {
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let rss_content = `<?xml version="1.0" encoding="UTF-8" ?>
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<rss version="2.0">
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<channel>
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<title>${config.site_name}</title>
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<link>${config.site_url}</link>
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<description>${config.site_description}</description>
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`
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for (let i = posts.posts.length-1; i >= 0; i--) {
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rss_content += `
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<item>
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<title>${posts.posts[i]["title"]}</title>
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<link>${config.site_url}/post/${i}.${config.file_extension}</link>
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<description><![CDATA[${posts.posts[i]["content"].replaceAll("\n","<br/>")}]]></description>
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<guid isPermaLink="true">${config.site_url}/post/${i}</guid>
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<pubDate>${unix_time_to_rss_date(posts.posts[i]['pubdate'])}</pubDate>`
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for (let j = 0; j < posts.posts[i]['tags'].length; j++) {
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rss_content += `<category><![CDATA[${posts.posts[i]['tags'][j]}]]></category>`
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};
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rss_content += "</item>"
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}
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rss_content += `
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</channel>
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</rss>`
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res.setHeader('content-type', 'application/rss+xml');
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res.send(rss_content)
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};
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});
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app.get("/", (req,res) => {
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header_div = config.timeline_header
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header_div = replace_format_indicators(header_div);
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posts_div = "";
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counter = posts.posts.length - 1;
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while ((counter >= 0) && (counter > (posts.posts.length - (config.timeline_length + 1))))
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{
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let post = config.timeline_post_format;
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posts_div += replace_format_indicators(post, counter);
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counter -= 1;
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}
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res.send(`<html><style>${config.css}</style><body><div id="header">${header_div}</div><div id="posts">${posts_div}</div></body></html>`);
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});
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app.get("/post", (req,res) => {
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res.send(`</html><style>${config.css}</style><form action="/submit_post" method="POST" onsubmit="sha512password()">
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<label>Username: </label><input required name="username"><br/>
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<label>Password: </label><input type="password" required id="password" name="password"><br/>
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<label>Title: </label><input required name="title"><br/>
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<label>Content: </label><textarea required name="content"></textarea><br/>
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<label>Tags (comma seperated): </label><input name="tags"><br/>
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<input type="submit" value="Submit">
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</form></html>`);
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});
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app.get("/edit", (req,res) => {
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res.send(`Edit page under construction`);
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});
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app.get("/user/:username", (req, res) => {
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header_div = config.user_page_header
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header_div = replace_format_indicators(header_div)
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posts_div = "";
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for (let post_index = posts.posts.length-1; post_index >= 0; post_index--) {
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if (users.users[posts.posts[post_index]["userID"]]["username"] == req.params.username) {
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let post = config.user_post_format;
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posts_div += replace_format_indicators(post, post_index);
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}
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}
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res.send(`<html><style>${config.css}</style><body><div id="header">${header_div}</div><div id="posts">${posts_div}</div></body></html>`);
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});
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app.get("/post/:post_index", (req, res) => {
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post_div = "";
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let post = config.post_page_format;
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post_div += replace_format_indicators(post, req.params.post_index);
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res.send(`<html><style>${config.css}</style><body><div id="posts">${post_div}</div></body></html>`);
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});
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app.get("/tag/:tag", (req,res) => {
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const tag = req.params.tag
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let header_div = config.tag_page_header
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header_div = replace_format_indicators(header_div,0,tag)
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let page_content = ""
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for (let i = posts.posts.length-1; i >= 0; i--) {
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if (posts.posts[i]['tags'].includes(tag)) {
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let post = config.tag_post_format;
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page_content += replace_format_indicators(post, i);
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};
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};
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res.send(`<html><style>${config.css}</style><body><div id="header">${header_div}</div><div id="posts">${page_content}</div></body></html>`);
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});
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app.post("/submit_post", (req,res) => {
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const password = crypto.createHash('sha512').update(req.body.password).digest('hex');
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const username = req.body.username
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const title = req.body.title
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const content = req.body.content
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const tags = req.body.tags.split(',');
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const unix_timestamp = getUnixTime(new Date())
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console.log(username, "is submitting a post titled:", title);
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if (get_userID(username) == -1) {
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res.send("User does not exist")
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}
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else if (users.users[get_userID(username)]['hash'] == password) { // Password matches
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posts.posts.push({
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"userID": get_userID(username),
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"title": title,
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"content": content,
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"pubdate": unix_timestamp,
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"editdate": unix_timestamp,
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"tags": tags,
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})
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fs.writeFileSync(`${__dirname}/posts.js`, `export const posts = ${JSON.stringify(posts.posts)}`, 'utf-8');
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res.redirect(302, "/");
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}
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else {
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res.send(`Invalid Password for user`,username);
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}
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});
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app.listen(port, () => {
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console.log(`Server is running at http://localhost:${port} in ${config.root_path}`);
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});
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