First commit

index.js

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+const express = require('express');
+const router = express.Router();
+const { exec } = require('child_process');
+
+let dir = process.argv[2] || '.';
+
+router.get('/', (req, res) => {
+    res.send('Welcome to our minimalist web application!')
+});
+
+router.get('/api/posts', (req, res) => {
+  let page = req.query.page || 1;
+  let limit = req.query.limit || 10;
+  exec(`./routes/listPosts ${dir} ${page} ${limit}`, (error, stdout, stderr) => {
+    if (error) {
+      console.log(`error: ${error.message}`);
+      return;
+    }
+    if (stderr) {
+      console.log(`stderr: ${stderr}`);
+      return;
+    }
+    let posts = stdout.split('\n').filter(Boolean);
+    res.json(posts);
+  });
+});
+
+router.get('/posts', (req, res) => {
+  let page = req.query.page || 1;
+  let limit = req.query.limit || 10;
+  exec(`./routes/listPosts ${dir} ${page} ${limit}`, (error, stdout, stderr) => {
+    if (error) {
+      console.log(`error: ${error.message}`);
+      return;
+    }
+    if (stderr) {
+      console.log(`stderr: ${stderr}`);
+      return;
+    }
+    let posts = stdout.split('\n').filter(Boolean);
+    let html = '<h1>Posts List</h1><ul>';
+    posts.forEach(post => {
+        html += `<li><a href="/viewPost?filename=${post}">${post.replace('.yaml', '')}</a></li>`;
+    });
+    html += '</ul>';
+
+    res.send(html);
+  });
+});
+
+router.get('/viewPost', (req, res) => {
+  let { filename } = req.query;
+  exec(`./routes/viewPost --filename=${filename}`, (error, stdout, stderr) => {
+    if (error) {
+      console.log(`error: ${error.message}`);
+      return;
+    }
+    if (stderr) {
+      console.log(`stderr: ${stderr}`);
+      return;
+    }
+    res.send(stdout.split('\n').filter(Boolean));
+  });
+});
+
+/*app.listen(3000, () => {
+  console.log('Server is running on port 3000');
+});
+*/
+
+module.exports = router
+

package.json

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+{
+  "name": "ao-mini",
+  "version": "1.0.0",
+  "description": "A simple and flexible web server that serves YAML files as cards or posts.",
+  "main": "index.js",
+  "scripts": {
+    "test": "test"
+  },
+  "author": "",
+  "license": "AGPL-3.0-or-later",
+  "dependencies": {
+    "dotenv": "^16.3.1",
+    "express": "^4.18.2",
+    "gray-matter": "^4.0.3",
+    "multer": "^1.4.5-lts.1",
+    "yamljs": "^0.3.0"
+  }
+}

routes/listPosts

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+#!/bin/sh
+# listPosts.sh
+
+dir=$1
+page=$2
+limit=$3
+
+offset=$(( (page - 1) * limit ))
+
+ls -1 "$dir"/*.yaml | awk -F/ '{print $NF}' | sed 's/\.yaml$//' | tail -n "+$((offset+1))" | head -n "$limit"

routes/register.js

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+const express = require('express');
+const router = express.Router();
+const { execSync } = require('child_process');
+
+router.post('/register', (req, res) => {
+  const { username, password } = req.body;
+
+  if (!username || !password) {
+    return res.status(400).json({ error: 'Username and password are required' });
+  }
+
+  execSync(`create-user ${username} ${password}`, (error, stdout, stderr) => {
+    if (error) {
+      console.log('errer')
+      if (error.message.includes('already exists')) {
+        // User already exists error handling
+        res.status(409).json({ message: 'Username already exists' });
+      } else {
+        // Other error handling
+        console.error(error);
+        res.status(500).json({ message: 'An error occurred during registration' });
+      }
+    } else {
+      res.status(200).json({ message: 'Registration successful' });
+    }
+  });
+});
+
+module.exports = router

routes/viewPost

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+#!/bin/sh
+
+# usage: ./viewPost.sh --file=<filename>
+
+# Parse the arguments
+for arg in "$@"
+do
+    case $arg in
+        --file=*)
+        file="${arg#*=}"
+        ;;
+    esac
+done
+
+# Check if the file exists and is a regular file
+if [ -f "$file" ]; then
+    cat "$file"
+else
+    echo "File does not exist"
+fi

scripts/allow-sudo

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+#!/bin/sh
+
+# Warning if run with sudo
+if [ "$EUID" -eq 0 ]; then
+  echo "Please do not run this script with sudo. Exiting."
+  exit 1
+fi
+
+# Command or file path provided as an argument
+COMMAND_OR_FILE="$1"
+
+# Get the specified username or default to the current user
+USERNAME="${2:-$(whoami)}"
+
+# Temporary file for sudoers
+TMP_FILE="/tmp/sudoers.tmp"
+
+# Determine if the input is a file or command name
+if [ -f "$COMMAND_OR_FILE" ]; then
+  # Convert to absolute path if it's a file
+  PATH_TO_ALLOW="$(realpath "$COMMAND_OR_FILE")"
+else
+  # Use 'which' to find the command path if it's a command name
+  PATH_TO_ALLOW="$(which "$COMMAND_OR_FILE")"
+fi
+
+# Check if the path was determined
+if [ -z "$PATH_TO_ALLOW" ]; then
+  echo "File or command not found."
+  exit 1
+fi
+
+# Make a temporary copy of the sudoers file using sudo
+sudo cp /etc/sudoers $TMP_FILE
+
+# Check if the entry already exists
+if ! sudo grep -q "$USERNAME ALL=(ALL) NOPASSWD: $PATH_TO_ALLOW" $TMP_FILE; then
+  # Add the new rule if it doesn't exist
+  echo "$USERNAME ALL=(ALL) NOPASSWD: $PATH_TO_ALLOW" | sudo tee -a $TMP_FILE > /dev/null
+fi
+
+# Validate the new sudoers file using sudo
+sudo visudo -cf $TMP_FILE
+
+# If validation succeeds, overwrite the sudoers file using sudo
+if [ $? -eq 0 ]; then
+  sudo cp $TMP_FILE /etc/sudoers
+  echo "Sudoers file updated successfully."
+else
+  echo "Error in sudoers file. Not updated."
+fi
+
+# Remove the temporary file using sudo
+sudo rm -f $TMP_FILE

scripts/test-register

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+curl -X POST -H "Content-Type: application/json" -d '{"username": "testuser", "password": "testpassword"}' http://localhost:3000/register
+

server.js

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+const express = require('express')
+const app = express()
+const port = process.env.PORT || 3000
+
+app.use(express.json())
+
+const os = require('os')
+console.log('Node.js is running as:', os.userInfo().username)
+
+// Import routes here to build our custom web server instance
+indexRoute = require('./index')
+app.use('/', indexRoute)
+
+registerRoute = require('./routes/register')
+app.use('/', registerRoute)
+
+app.listen(port, () => {
+    console.log(`Server is running on http://localhost:${port}`)
+});