ravenscott-blog/app.js

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JavaScript
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require('dotenv').config(); // Load environment variables
const express = require('express');
const path = require('path');
const fs = require('fs');
const { marked } = require('marked');
const nodemailer = require('nodemailer');
const hljs = require('highlight.js');
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const { format } = require('date-fns'); // To format dates in a proper XML format
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const app = express();
// Set options for marked to use highlight.js for syntax highlighting
marked.setOptions({
highlight: function (code, language) {
// Check if the language is valid
const validLanguage = hljs.getLanguage(language) ? language : 'plaintext';
return hljs.highlight(validLanguage, code).value;
}
});
// Set EJS as templating engine
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'));
// Middleware to parse URL-encoded bodies (form submissions)
app.use(express.urlencoded({ extended: false }));
// Serve static files (CSS, Images)
app.use(express.static(path.join(__dirname, 'public')));
// Function to load and parse markdown files and extract lead
function loadMarkdownWithLead(file) {
const markdownContent = fs.readFileSync(path.join(__dirname, 'markdown', file), 'utf-8');
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let lead = '';
let contentMarkdown = markdownContent;
// Detect and extract the lead section
const leadKeyword = '<!-- lead -->';
if (contentMarkdown.includes(leadKeyword)) {
const [beforeLead, afterLead] = contentMarkdown.split(leadKeyword);
// Extract the first paragraph after the lead keyword
lead = afterLead.split('\n').find(line => line.trim() !== '').trim();
// Remove the lead from the main content
contentMarkdown = beforeLead + afterLead.replace(lead, '').trim();
}
// Convert markdown to HTML
const contentHtml = marked.parse(contentMarkdown);
return { contentHtml, lead };
}
// Function to convert a title (with spaces and special characters) into a URL-friendly slug (with dashes)
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function titleToSlug(title) {
return title
.toLowerCase() // Convert to lowercase
.replace(/[^a-z0-9\s-]/g, '') // Remove all non-alphanumeric characters except spaces and dashes
.replace(/\s+/g, '-'); // Replace spaces with dashes
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}
// Function to convert a slug (with dashes) back into a readable title (with spaces)
function slugToTitle(slug) {
return slug.replace(/-/g, ' ');
}
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// Function to load all blog posts with pagination support
function getAllBlogPosts(page = 1, postsPerPage = 5) {
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const blogFiles = fs.readdirSync(path.join(__dirname, 'markdown')).filter(file => file.endsWith('.md'));
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// Paginate the results
const totalPosts = blogFiles.length;
const totalPages = Math.ceil(totalPosts / postsPerPage);
const start = (page - 1) * postsPerPage;
const end = start + postsPerPage;
const paginatedFiles = blogFiles.slice(start, end);
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const blogPosts = paginatedFiles.map(file => {
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const title = file.replace('.md', '').replace(/-/g, ' '); // Keep original casing for title
const slug = titleToSlug(title); // Convert title to slug (lowercase)
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// Get the last modified date of the markdown file
const stats = fs.statSync(path.join(__dirname, 'markdown', file));
const lastModifiedDate = new Date(stats.mtime); // Use mtime for last modification time
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// Format the date
const formattedDate = lastModifiedDate.toLocaleDateString('en-US', {
year: 'numeric',
month: 'long',
day: 'numeric'
});
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return {
title, // Original casing title
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slug,
date: formattedDate // Include the formatted date
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};
});
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return { blogPosts, totalPages };
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}
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// Home Route (Blog Home with Pagination)
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app.get('/', (req, res) => {
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const page = parseInt(req.query.page) || 1;
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if (page < 1) {
return res.redirect(req.hostname);
}
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const postsPerPage = 5; // Set how many posts to display per page
const { blogPosts, totalPages } = getAllBlogPosts(page, postsPerPage);
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res.render('index', {
title: 'Raven Scott Blog',
blogPosts,
currentPage: page,
totalPages
});
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});
// About Route
app.get('/about', (req, res) => {
res.render('about', { title: 'About Raven Scott' });
});
// Display the Request a Quote form
app.get('/contact', (req, res) => {
res.render('contact', { title: 'Contact Raven Scott', msg: undefined });
});
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// Handle contact form submission
app.post('/contact', (req, res) => {
const { name, email, subject, message } = req.body;
// Validate form inputs (basic example)
if (!name || !email || !subject || !message) {
return res.render('contact', { title: 'Contact Raven Scott', msg: 'All fields are required.' });
}
// Create email content
const output = `
<p>You have a new contact request from <strong>${name}</strong>.</p>
<h3>Contact Details</h3>
<ul>
<li><strong>Name:</strong> ${name}</li>
<li><strong>Email:</strong> ${email}</li>
<li><strong>Subject:</strong> ${subject}</li>
</ul>
<h3>Message</h3>
<p>${message}</p>
`;
// Set up Nodemailer transporter
let transporter = nodemailer.createTransport({
host: process.env.SMTP_HOST,
port: process.env.SMTP_PORT,
secure: false, // true for 465, false for other ports
auth: {
user: process.env.EMAIL_USER, // Email user from environment variables
pass: process.env.EMAIL_PASS, // Email password from environment variables
},
tls: {
rejectUnauthorized: false,
},
});
// Set up email options
let mailOptions = {
from: `"${name}" <quote@node-geeks.com>`,
to: process.env.RECEIVER_EMAIL, // Your email address to receive contact form submissions
subject: subject,
html: output,
};
// Send email
transporter.sendMail(mailOptions, (error, info) => {
if (error) {
console.error(error);
return res.render('contact', { title: 'Contact Raven Scott', msg: 'An error occurred. Please try again.' });
} else {
console.log('Email sent: ' + info.response);
return res.render('contact', { title: 'Contact Raven Scott', msg: 'Your message has been sent successfully!' });
}
});
});
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// Blog Post Route
app.get('/blog/:slug', (req, res) => {
const slug = req.params.slug;
const markdownFile = fs.readdirSync(path.join(__dirname, 'markdown'))
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.find(file => titleToSlug(file.replace('.md', '')) === slug);
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if (markdownFile) {
const originalTitle = markdownFile.replace('.md', ''); // Original title with casing
const blogPosts = getAllBlogPosts();
const { contentHtml, lead } = loadMarkdownWithLead(markdownFile);
res.render('blog-post', {
title: originalTitle, // Use the original title with casing
content: contentHtml,
lead: lead,
blogPosts
});
} else {
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res.redirect('/'); // Redirect to the home page if the blog post is not found
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}
});
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// Sitemap Route
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// Sitemap Route
app.get('/sitemap.xml', (req, res) => {
const hostname = req.headers.host || 'http://localhost'; // Ensure this is your site URL in production
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const blogFiles = fs.readdirSync(path.join(__dirname, 'markdown'))
.filter(file => file.endsWith('.md'))
.sort((a, b) => {
const statA = fs.statSync(path.join(__dirname, 'markdown', a)).mtime;
const statB = fs.statSync(path.join(__dirname, 'markdown', b)).mtime;
return statB - statA; // Sort in descending order (latest first)
});
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// Static URLs (e.g., homepage, about, contact)
const staticUrls = [
{ url: '/', changefreq: 'weekly', priority: 1.0 },
{ url: '/about', changefreq: 'monthly', priority: 0.8 },
{ url: '/contact', changefreq: 'monthly', priority: 0.8 }
];
// Dynamic URLs (e.g., blog posts)
const blogUrls = blogFiles.map(file => {
const title = file.replace('.md', '');
const slug = titleToSlug(title);
// Get the last modified date of the markdown file
const stats = fs.statSync(path.join(__dirname, 'markdown', file));
const lastModifiedDate = format(new Date(stats.mtime), 'yyyy-MM-dd');
return {
url: `/blog/${slug}`,
lastmod: lastModifiedDate,
changefreq: 'monthly',
priority: 0.9
};
});
// Combine static and dynamic URLs
const urls = [...staticUrls, ...blogUrls];
// Generate the XML for the sitemap
let sitemap = `<?xml version="1.0" encoding="UTF-8"?>\n<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">\n`;
urls.forEach(({ url, lastmod, changefreq, priority }) => {
sitemap += ` <url>\n`;
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sitemap += ` <loc>https://${hostname}${url}</loc>\n`;
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if (lastmod) {
sitemap += ` <lastmod>${lastmod}</lastmod>\n`;
}
sitemap += ` <changefreq>${changefreq}</changefreq>\n`;
sitemap += ` <priority>${priority}</priority>\n`;
sitemap += ` </url>\n`;
});
sitemap += `</urlset>`;
// Set the content type to XML and send the response
res.header('Content-Type', 'application/xml');
res.send(sitemap);
});
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// RSS Feed Route
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// RSS Feed Route
app.get('/rss', (req, res) => {
const hostname = req.headers.host || 'http://localhost'; // Adjust for production if needed
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const blogFiles = fs.readdirSync(path.join(__dirname, 'markdown'))
.filter(file => file.endsWith('.md'))
.sort((a, b) => {
const statA = fs.statSync(path.join(__dirname, 'markdown', a)).mtime;
const statB = fs.statSync(path.join(__dirname, 'markdown', b)).mtime;
return statB - statA; // Sort in descending order (latest first)
});
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// Build RSS feed
let rssFeed = `<?xml version="1.0" encoding="UTF-8" ?>\n<rss version="2.0">\n<channel>\n`;
rssFeed += `<title>Raven Scott Blog</title>\n`;
rssFeed += `<link>https://${hostname}</link>\n`;
rssFeed += `<description>This is the RSS feed for Raven Scott's blog.</description>\n`;
// Generate RSS items for each blog post
blogFiles.forEach(file => {
const title = file.replace('.md', '');
const slug = titleToSlug(title);
// Get the last modified date of the markdown file
const stats = fs.statSync(path.join(__dirname, 'markdown', file));
const lastModifiedDate = new Date(stats.mtime).toUTCString(); // Use UTC date for RSS
// Load and parse markdown content to extract a lead or description
const { lead } = loadMarkdownWithLead(file);
// RSS item for each post
rssFeed += `<item>\n`;
rssFeed += `<title>${title}</title>\n`;
rssFeed += `<link>https://${hostname}/blog/${slug}</link>\n`;
rssFeed += `<description>${lead || 'Read the full post on the blog.'}</description>\n`;
rssFeed += `<pubDate>${lastModifiedDate}</pubDate>\n`;
rssFeed += `<guid>https://${hostname}/blog/${slug}</guid>\n`;
rssFeed += `</item>\n`;
});
rssFeed += `</channel>\n</rss>`;
// Set content type to XML and send the RSS feed
res.header('Content-Type', 'application/rss+xml');
res.send(rssFeed);
});
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// Global 404 handler for any other unmatched routes
app.use((req, res) => {
res.redirect('/'); // Redirect to the home page for any 404 error
});
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// ================================
// Server Listening
// ================================
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const PORT = process.env.PORT || 8899;
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app.listen(PORT, () => {
console.log(`Server running on http://localhost:${PORT}`);
});