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278 lines
11 KiB
PHP
278 lines
11 KiB
PHP
<?php session_start(); ?>
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<!DOCTYPE html>
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<html dir="ltr">
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<head>
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<meta charset="utf-8">
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<title>MAILBOX</title>
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<script>
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const titles = ["Mail", "Box", "💌"];
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let i = 0;
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setInterval(() => {
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i = i % 3;
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document.title = titles[i];
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i++;
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}, 1000);
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</script>
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<link href="style.css" rel="stylesheet">
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<link rel="icon" type="image/png" href="ico.png">
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</head>
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<body>
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<div id="toppy"> Look around you. Where are you now? </div>
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<div id="lefty"> What do you notice here? Describe your surroundings. </div>
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<img class="img1" src="./img/002.png">
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<img class="img2" src="./img/005.png">
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<img class="img3" src="./img/006.png">
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<img class="img4" src="./img/010.png">
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<img class="img5" src="./img/009.png">
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<img class="img6" src="./img/016.png">
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<img class="img7" src="./img/014.png">
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<div class="guestbook" id="guestbook">
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<div class="guest-messages" id="guest-messages">
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<?php
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// ===================================================================
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// PHP FLAT-FILE GUESTBOOK by Taufik Nurrohman <http://gplus.to/tovic>
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// ===================================================================
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// START CONFIGURATION
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$database = 'database-001'; // Your TXT file name as database.
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$per_page = 10; // The number of items you want to display per page.
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$time_zone = 'Europe/Amsterdam'; // Look at `date_default_timezone_set()`
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$max_length_name = 60; // Maximum character length for guest name
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$max_length_message = 1000; // Maximum character length for guest message
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$messages = array(
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'database_missing' => 'Database not found. Created one. Please reload the page.',
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'name_missing' => 'Please enter your name.',
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'message_missing' => 'Please enter your message.',
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'max_length_name' => 'Maximum character length for guest name is ' . $max_length_name,
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'max_length_message' => 'Maximum character length for guest message is ' . $max_length_message,
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'no_content' => 'No content.'
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);
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// END CONFIGURATION
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// Set default timezone to adjust the timestamp.
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// => http://www.php.net/manual/en/function.date-default-timezone-set.php
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date_default_timezone_set($time_zone);
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// Functions to create and/or update the content of the TXT file (our database)
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function create_or_update_file($file_path, $data) {
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$handle = fopen($file_path, 'w') or die('Cannot open file: ' . $file_path);
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fwrite($handle, $data);
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}
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// Filter HTML outputs.
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// The rest will appear as plain HTML entities to prevent XSS.
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// => http://en.wikipedia.org/wiki/Cross-site_scripting
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function filter_html($data) {
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return preg_replace(
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array(
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'/<(\/?)(b|blockquote|br|em|i|ins|mark|q|strong|u)>/i', // Allowed HTML tags
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'/<center>/', // Deprecated <center> tag
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'/<\/center>/', // Deprecated </center> tag
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'/&([a-zA-Z]+|\#[0-9]+);/' // Symbols
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),
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array(
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'<$1$2>',
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'<div style="text-align:center;">',
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'</div>',
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'&$1;'
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),
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$data);
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}
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// Redefine database name via URL to load
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// Load database-002.txt => http://localhost/guestbook/index.php&data=database-002
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if(isset($_GET['data'])) {
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$database = $_GET['data'];
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}
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// Check whether the "database" is not available. If not, create one!
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if( ! file_exists($database . '.txt')) {
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// Prevent guest to create new database via `data=database-XXX` in URL
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// Only administrator can do this by editing the `$database` value
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if( ! isset($_GET['data'])) {
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create_or_update_file($database . '.txt', "");
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echo "<p class=\"message-warning\">" . $messages['database_missing'] . "</p>";
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}
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return false;
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} else {
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$old_data = file_get_contents($database . '.txt');
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}
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/**
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* Post a message
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*/
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$error = ""; // error messages
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if($_SERVER['REQUEST_METHOD'] == 'POST') {
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$name = "";
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//$url = "";
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$message = "";
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$timestamp = date('U');
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// Make sure the guest name is not empty.
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if(isset($_POST['name']) && ! empty($_POST['name'])) {
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$name = strip_tags($_POST['name']);
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} else {
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$error .= "<p class=\"message-error\">" . $messages['name_missing'] . "</p>";
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}
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// Make sure the guest message is not empty.
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if(isset($_POST['message']) && ! empty($_POST['message'])) {
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$message = preg_replace(
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array(
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'/[\n\r]{4,}/', // [1]
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'/\n/',
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'/[\r\t]/',
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'/ {2}/', // Multiple space characters
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'/ | /',
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'/<a (.*?)?href=(\'|\")(.*?)(\'|\")(.*?)?>(.*?)<\/a>/i' // Match links
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),
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array(
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'<br><br>',
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'<br>',
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'',
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' ',
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' ',
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'$6' // Unlink all links in message content!
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),
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$_POST['message']);
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$message = htmlentities($message, ENT_QUOTES, 'UTF-8'); // [2]
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} else {
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$error .= "<p class=\"message-error\">" . $messages['message_missing'] . "</p>";
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}
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// Check for character length limit
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if(strlen($name) > $max_length_name) $error .= "<p class=\"message-error\">" . $messages['max_length_name'] . "</p>";
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if(strlen($message) > $max_length_message) $error .= "<p class=\"message-error\">" . $messages['max_length_message'] . "</p>";
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// If all data entered by guest is valid, insert new data!
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if($error === "") {
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$new_data = " 💌 " . $name ." 🕊 " . "\n" . "\n" . $message . "\n" . $timestamp;
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if( ! empty($old_data)) {
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create_or_update_file($database . '.txt', $new_data . "\n\n==\n" . $old_data); // Prepend data
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} else {
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create_or_update_file($database . '.txt', $new_data); // Insert data
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}
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} else {
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// else, print the error messages.
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echo $error;
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}
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}
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// [3]
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$_SESSION['guest_name'] = isset($_POST['name']) ? $_POST['name'] : "";
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$_SESSION['guest_message'] = isset($_POST['message']) && $error != "" ? htmlentities($_POST['message'], ENT_QUOTES, 'UTF-8') : "";
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// ----------------------------------------------------------------------------------------
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// [1]. Prevent guest to type too many line break symbols.
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// People usually do these thing to make their SPAM messages looks striking.
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// [2]. Convert all HTML tags into HTML entities. This is done thoroughly for safety.
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// We can revert back the escaped HTML into normal HTML tags later via `filter_html()`
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// [3]. Save the form data into session. So if something goes wrong, the data entered
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// by guest will still be stored in the form after submitting.
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// ----------------------------------------------------------------------------------------
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/**
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* Show the existing data.
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*/
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$data = file_get_contents($database . '.txt');
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$current_page = isset($_GET['page']) ? $_GET['page'] : 1;
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$nav = "";
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if( ! empty($data)) {
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$data = explode("\n\n==\n", $data);
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$total_pages = ceil(count($data) / $per_page);
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// Create navigation if the number of pages is more than 1.
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if($total_pages > 1) {
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for($i = 0; $i < $total_pages; $i++) {
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if($current_page == ($i + 1)) {
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$nav .= " <span>" . ($i + 1) . "</span>"; // Disabled navigation
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} else {
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$nav .= " <a href=\"?page=" . ($i + 1) . (isset($_GET['data']) ? '&data=' . $database : '') . "\">" . ($i + 1) . "</a>";
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}
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}
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}
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for($i = 0; $i < count($data); $i++) {
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$item = explode("\n", $data[$i]);
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// Permalink (single item)
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// http://localhost/guestbook/index.php&data=database-001&guest=0123456789
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if(isset($_GET['guest']) && preg_match('/[0-9]+/', $_GET['guest'])) {
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if($item[3] == $_GET['guest']) {
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echo " <div class=\"guest-item\" id=\"guest-" . $item[3] . "\">\n";
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echo " <strong class=\"guest-name\">";
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echo $item[1] == "-" ? "" : "<a href=\"" . $item[1] . "\" rel=\"nofollow\" target=\"_blank\">";
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echo $item[0];
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echo $item[1] == "-" ? "" : "</a>";
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echo "</strong>\n";
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echo " <span class=\"guest-timestamp\">";
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echo "<time datetime=\"" . date('c', $item[3]) . "\">" . date('Y/m/d H:i', $item[3]) . "</time>";
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echo " <a href=\"?data=" . $database . "&guest=" . $item[3] . "\" title=\"Permanent Link\">#</a>";
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echo "</span>\n";
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echo " <span class=\"guest-message\">" . filter_html($item[2]) . "</span>\n";
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echo " </div>\n";
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}
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// Normal list
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} else {
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if($i <= ($per_page * $current_page) - 1 && $i > ($per_page * ($current_page - 1)) - 1) {
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echo " <div class=\"guest-item\" id=\"guest-" . $item[3] . "\">\n";
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echo " <strong class=\"guest-name\">";
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echo $item[1] == "-" ? "" : "<a href=\"" . $item[1] . "\" rel=\"nofollow\" target=\"_blank\">";
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echo $item[0];
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echo $item[1] == "-" ? "" : "</a>";
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echo "</strong>\n";
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echo " <span class=\"guest-timestamp\">";
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echo "<time datetime=\"" . date('c', $item[3]) . "\">" . date('Y/m/d H:i', $item[3]) . "</time>";
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echo " <a href=\"?data=" . $database . "&guest=" . $item[3] . "\" title=\"Permanent Link\">#</a>";
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echo "</span>\n";
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echo " <span class=\"guest-message\">" . filter_html($item[2]) . "</span>\n";
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echo " </div>\n";
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}
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}
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}
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} else {
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echo " <div class=\"guest-item\">\n";
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echo " <strong class=\"guest-name\">Guestbook</strong>\n";
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echo " <span class=\"guest-message\">" . $messages['no_content'] . "</span>\n";
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echo " </div>\n";
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}
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?>
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</div>
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<div class="guestbook-nav"><?php echo trim($nav); ?></div>
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<?php if( ! isset($_GET['data']) && ! isset($_GET['guest'])): ?>
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<form method="post">
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<label>Name</label>
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<div><input type="text" name="name" value="<?php echo isset($_SESSION['guest_name']) ? $_SESSION['guest_name'] : ''; ?>"></div>
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<div><input style="display: none" type="text" name="url" value="<?php echo isset($_SESSION['guest_url']) ? $_SESSION['guest_url'] : 'http://'; ?>"></div>
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<label>Message</label>
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<div><textarea name="message" placeholder="Look around you. Where are you now? What do you notice here? Describe your surroundings."><?php echo isset($_SESSION['guest_message']) ? $_SESSION['guest_message'] : ''; ?></textarea></div>
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<hr>
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<div style="display: none"><?php echo $math; ?> = <input style="display: none" type="text" name="math" autocomplete="off"> </div><div><button type="submit">Leave a trace</button></div>
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<span class="clear"></span>
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</form>
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<?php endif; ?>
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</div>
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</body>
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</html>
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