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app.js
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117
app.js
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const express = require('express');
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const crypto = require('crypto');
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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 = 8005;
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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 unix_time_to_date_format(unix_time) {
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let date_object = new Date(unix_time)
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let formatter = new Intl.DateTimeFormat(config.date_format,config.date_options);
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let formatted_time = formatter.format(date_object);
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return formatted_time
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}
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function replace_format_indicators(input_string, post_index) {
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post_object = posts.posts[post_index]
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output_string = input_string
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.replace("%A", (post_object["tags"]))
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.replace("%C", post_object["content"])
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.replace("%D", unix_time_to_date_format(post_object["pubdate"]))
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.replace("%E", unix_time_to_date_format(post_object["editdate"]))
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.replace("%L", `/post/${post_index}`)
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.replace("%N", post_object["poster"])
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.replace("%P", "/post")
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.replace("%O", "/edit")
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.replace("%R", "/rss")
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.replace("%S", config.seperator)
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.replace("%T", post_object["title"])
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.replace("%U", `/user/${post_object["poster"]}`)
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.replace("%Y", config.site_name)
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.replace("%W", config.site_description)
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return output_string
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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, 0);
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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><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><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 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 = `<h1>${req.params.username}</h1>`
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posts_div = "";
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for (let post_index = posts.posts.length-1; post_index >= 0; post_index--) {
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if (posts.posts[post_index]["poster"] == req.params.username) {
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let post = config.user_post_format;
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posts_div += replace_format_indicators(post, post_index);
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}
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}
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res.send(`<html><body><div id="header">${header_div}</div><div id="posts">${posts_div}</div></body></html>`);
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});
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app.get("/post/:post_index", (req, res) => {
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post_div = "";
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let post = config.post_page_format;
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post_div += replace_format_indicators(post, req.params.post_index);
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res.send(`<html><body><div id="posts">${post_div}</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 datetime = new Date().getTime()
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console.log(username, "is submitting a post titled:", title);
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if (users.users[username] == password) { // Password matches
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posts.posts.push({
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"poster": username,
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"title": title,
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"content": content,
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"pubdate": datetime,
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"editdate": datetime,
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"tags": tags,
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})
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fs.writeFileSync(`${config.root_path}/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}`);
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});
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59
config.js
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59
config.js
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export const seperator = "<hr/>"
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export const site_name = "DeaDvey's Blog"
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export const site_description = "Films, tech, random shit"
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export const timeline_length = 20
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export const root_path = "/home/gaming/code/web/blogger"
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// Date format using https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString
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export const date_format = 'en-GB';
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export const date_options = {
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day: '2-digit',
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month: '2-digit',
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year: 'numeric',
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hour: '2-digit',
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minute: '2-digit',
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second: '2-digit',
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hour12: true,
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timeZone: 'UTC'
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}
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//// Format /////
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// The syntax for this is pretty simple
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// %A - List of tags
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// %C - Post content
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// %D - Published date in the format specified by date_format
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// %E - Edited date in the format specified by date_format
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// %L - URL Permanent link to the post
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// %N - the username of the user (poster)
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// %P - URL to create a new post
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// %O - URL to edit a post
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// %R - Site wide RSS feed
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// %S - post seperator as defined by post_seperator
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// %T - Title
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// %U - URL the the user (poster)
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// %Y - Site Name as defined by site_name
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// %W - Site Description as defined by site_description
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export const timeline_header = `<h1>%Y</h1>
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<h2>%W</h2>
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<a href="%P">Create Post</a><br/>
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<a href="%O">Edit Post</a><br/>
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<a href="%R">RSS Feed</a>
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%S`
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export const user_post_format = `<h2>%T</h2>
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<p>%C</p>
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<i>%A</i><br/>
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<a href="%L">Permalink</a><br/>
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%S`
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export const post_page_format = `<h1>%T</h1>
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<p>%C</p>
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<i>%A</i><br/>
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<i>By <a href="%U">%N</a></i><br/<
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<i>Posted: %D</i><br/>
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<i>Edited: %E</i>`
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export const timeline_post_format = `<h3>%T</h3>
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<p>%C</p>
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<a href="%L">Permalink</a><br/>
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<i>By <a href="%U">%N</a></i>
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%S`
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