shorturl/index.php

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<?php
require('config.php');
if (is_readable(DATA_FILE))
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{
$data = unserialize(gzinflate(file_get_contents(DATA_FILE)));
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}
else
$data = array();
// If we don't have exactly one $_GET arg, we print a default page
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if (count($_GET) != 1) {
if (!empty($_POST['url']) || (isset($_GET['add']) && !empty($_GET['url']))) {
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$default_url = htmlspecialchars($_GET['url']);
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}
else {
$default_url = '';
}
if (!empty($_POST['short'])) {
$default_short = htmlspecialchars($_GET['short']);
}
else {
$default_short = '';
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}
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?>
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<!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="utf-8">
<title>Shorten me</title>
<link rel="stylesheet" media="screen" type="text/css" href="design.css" />
</head>
<body>
<h1>It's too long…</h1>
<form method="post" action="process.php">
<p>
<label for="url">URL: </label><input type="text" size="50" name="url" id="url" value="<?php echo $default_url; ?>"/>
</p>
<p>
<label for="short">Shortcut (optional): </label><input type="short" size="50" name="short" id="short" value="<?php echo $default_short;?>"/>
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</p>
<p><input type="submit" value="Shorten !"/></p>
<p>Add this link to your bookmarks to shorten links in one click !
<a href="javascript:javascript:(function(){var%20url%20=%20location.href;var%20title%20=%20document.title%20||%20url;window.open('<?php echo BASE_URL; ?>/?add&url='%20+%20encodeURIComponent(url),'_blank','menubar=no,height=390,width=600,toolbar=no,scrollbars=no,status=no,dialog=1');})();">Short link</a>
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</p>
</form>
</body>
</html>
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<?php
}
// Else, we redirect the visitor to the right URL
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else {
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// We get the shortened url
$get = each($_GET);
$short = $get['key'];
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$url = BASE_URL;
if (array_key_exists($short, $data)) {
$url = $data[$short]['url'];
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}
// $url is now index.php if no element was found, the right url if found
header('location:'.$url);
}
?>