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<?php
/**
* @package c1k.it
* @author Silvino Rodrigues (@silvinor)
* @copyright (c) 2024 - See LICENSE.md for copyright notice and details.
* @license MIT
*/
/* ╔═════════════════════════════════════════════════════════════════════════╗
* ║ ║
* ║ ClickIt-URL-Shortener, © 2024 Silvino Rodrigues ║
* ║ ║
* ╚═════════════════════════════════════════════════════════════════════════╝
*/
const DEFAULT_REDIRECTION_CODE = 307;
const DEFAULT_CACHE_TIME = (24 * 60 * 60); // 1 day, in seconds
const DEFAULT_CURL_TIMEOUT = 15; // in seconds
const DEBUG = false;
global $config, $command, $promise, $content, $short, $url, $error;
/*
* You can skip using an external URLs file by populating your list right here.
* To do that, just uncomment the line below and populate the array with your URLs.
* Note: This will also disable the loading of the `$config` object, so edit that too.
*/
/* $urls = [
's1' => 'http://{your_url}',
's2' => 'http://{your_url}, 302',
's3' => [ 'https://{your_url}', 302 ]
]; /* */
$config = [
'json_data_filename' => 'short_urls.json',
'private' => true,
// Thanks to https://goqr.me/api/doc/create-qr-code/
'qr_code_engine' => 'https://api.qrserver.com/v1/create-qr-code/?format=svg&color=000000&bgcolor=FFFFFF&qzone=2&margin=0&size=300x300&ecc=L&data={{url}}',
'qr_content_type' => 'image/svg+xml',
'qr_file_ext' => '.svg',
'extra_css' => '<style>.img-qrcode{width:300px;height:300px}</style>',
'default_title' => 'c1k.it',
// Thanks to https://www.srihash.org/ for the SRI Hash Generator
'bootstrap_css' => [
'url' => 'assets/css/bootstrap-dark.min.css',
'hash' => ''
],
'fontawesome_css' => [
'url' => 'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css',
'hash' => 'sha384-PPIZEGYM1v8zp5Py7UjFb79S58UeqCL9pYVnVPURKEqvioPROaVAJKKLzvH2rDnI'
],
'highlight_css' => [
'url' => 'https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/default.min.css',
'hash' => 'sha384-4Y0nObtF3CbKnh+lpzmAVdAMtQXl+ganWiiv73RcGVdRdfVIya8Cao1C8ZsVRRDz'
],
'jquery_js' => [
'url' => 'https://cdn.jsdelivr.net/npm/[email protected]/dist/jquery.slim.min.js',
'hash' => 'sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj'
],
// Don't think I need popper for this project
// 'popper_js' => [
// 'url' => 'https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js',
// 'hash' => 'sha384-9/reFTGAW83EW2RDu2S0VKaIzap3H66lZH81PoYlFhbGU+6BZp6G7niu735Sk7lN'
// ],
'bootstrap_js' => [
'url' => 'https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js',
'hash' => 'sha384-+sLIOodYLS7CIrQpBjl+C7nPvqq+FbNUBDunl/OZv93DB7Ln/533i8e/mZXLi/P+'
],
'highlight_js' => [
'url' => 'https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js',
'hash' => 'sha384-F/bZzf7p3Joyp5psL90p/p89AZJsndkSoGwRpXcZhleCWhd8SnRuoYo4d0yirjJp'
],
'copyright' => '© 2011-2025 Silvino Rodrigues | <a href="https://github.com/silvinor/clickit-url-shortener"><i class="fa-brands fa-github-alt"></i> ClickIt-URL-Shortener</a>'
];
/* --------- Static content --------- */
$images = [
'icon.svg' => [
'c' => 'image/svg+xml',
'b' => false,
'h' => 2592000, // 30 days
'd' => '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 506 503"><defs><linearGradient id="a" x1="0%" x2="100%" y1="0%" y2="50%"><stop offset="0%" stop-color="#0066A3" stop-opacity=".8"/><stop offset="100%" stop-color="#003B5F" stop-opacity=".8"/></linearGradient></defs><path fill="url(#a)" d="m232.37 218.89 220.2-108.185-220.2-100.27-220.202 100.27z" transform="translate(20.63)"/><path d="M248.923 1.477 28.715 101.747a9.85 9.85 0 0 0-5.766 8.816 9.85 9.85 0 0 0 5.505 8.983l220.208 108.185a9.847 9.847 0 0 0 8.676 0l220.208-108.185a9.85 9.85 0 0 0 5.505-8.983 9.85 9.85 0 0 0-5.766-8.817L257.077 1.476a9.847 9.847 0 0 0-8.154 0ZM253 21.254l197.185 89.792L253 207.923 55.815 111.046 253 21.254Z"/><path fill="url(#a)" d="M237.801 124.77 13.718 12.15l23.593 228.518 202.255 126.233z" transform="translate(-3 126.03)"/><path d="M15.138 129.385a9.847 9.847 0 0 0-14.215 9.807l23.592 228.516a9.847 9.847 0 0 0 4.585 7.346l202.254 126.23a9.847 9.847 0 0 0 15.054-8.422l-1.762-242.131a9.847 9.847 0 0 0-5.423-8.731L15.138 129.385Zm7.224 25.661L225 256.9l1.592 218.2L43.608 360.9 22.362 155.046Z"/><path fill="url(#a)" d="M14.26 124.77 238.343 12.15 214.75 240.667 12.496 366.901z" transform="translate(256.938 126.03)"/><path d="M497.692 128.638a9.847 9.847 0 0 0-6.83.747L266.777 242a9.847 9.847 0 0 0-5.423 8.73l-1.762 242.132a9.848 9.848 0 0 0 15.054 8.423L476.9 375.054a9.847 9.847 0 0 0 4.585-7.346l23.592-228.516a9.847 9.847 0 0 0-7.385-10.554Zm-14.054 26.408L462.392 360.9 279.408 475.1 281 256.9l202.638-101.854Z"/></svg>'
],
'logo.svg' => [
'c' => 'image/svg+xml',
'b' => false,
'h' => 2592000, // 30 days
'd' => '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 565 128"><defs><linearGradient id="a" x1="0%" x2="100%" y1="0%" y2="50%"><stop offset="0%" stop-color="#0066A3" stop-opacity=".8"/><stop offset="100%" stop-color="#003B5F" stop-opacity=".8"/></linearGradient></defs><path fill="url(#a)" d="m59 55.578 55.91-27.47L59 2.65 3.09 28.109z" transform="translate(5)"/><path d="M62.965.375 7.053 25.834a2.501 2.501 0 0 0-.067 4.52l55.912 27.468a2.5 2.5 0 0 0 2.204 0l55.912-27.468a2.501 2.501 0 0 0-.067-4.52L65.035.375a2.5 2.5 0 0 0-2.07 0ZM64 5.396l50.066 22.8L64 52.792 13.934 28.195 64 5.396Z"/><path fill="url(#a)" d="M60.38 31.68 3.482 3.085l5.99 58.022 51.354 32.051z" transform="translate(-1 32)"/><path d="M3.605 32.852a2.5 2.5 0 0 0-3.609 2.49l5.99 58.021A2.5 2.5 0 0 0 7.15 95.23l51.354 32.05a2.5 2.5 0 0 0 3.822-2.138l-.447-61.479a2.5 2.5 0 0 0-1.377-2.217L3.605 32.852Zm1.834 6.515L56.891 65.23l.404 55.402-46.461-28.996-5.395-52.268Z"/><path fill="url(#a)" d="M3.62 31.68 60.518 3.085l-5.99 58.022L3.172 93.158z" transform="translate(65 32)"/><path d="M126.129 32.662a2.5 2.5 0 0 0-1.734.19L67.498 61.445a2.5 2.5 0 0 0-1.377 2.217l-.447 61.479a2.5 2.5 0 0 0 3.822 2.138l51.354-32.05a2.5 2.5 0 0 0 1.164-1.866l5.99-58.021a2.5 2.5 0 0 0-1.875-2.68Zm-3.568 6.705-5.395 52.268-46.46 28.996.403-55.402 51.452-25.862Z"/><path fill="url(#a)" d="M150.204 84.625c0-4.794.752-9.306 2.256-13.536 1.504-4.23 3.807-7.896 6.909-10.998 3.102-3.196 7.003-5.687 11.703-7.473 4.794-1.88 10.481-2.82 17.061-2.82 3.948 0 7.52.282 10.716.846 3.196.564 6.439 1.504 9.729 2.82l-3.807 13.959c-1.88-.658-3.995-1.222-6.345-1.692-2.256-.564-5.17-.846-8.742-.846-4.136 0-7.614.517-10.434 1.551-2.726.94-4.935 2.303-6.627 4.089-1.692 1.692-2.914 3.76-3.666 6.204-.752 2.444-1.128 5.076-1.128 7.896 0 6.11 1.692 10.904 5.076 14.382 3.478 3.478 9.353 5.217 17.625 5.217a66.12 66.12 0 0 0 8.46-.564c3.008-.376 5.734-.987 8.178-1.833l2.538 14.241c-2.444.94-5.405 1.692-8.883 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],
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'c' => 'image/png',
'b' => true,
'h' => 2592000, // 30 days
'd' => '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'
]
];
// ---------- Helper functions ---------
/**
* Check if a valid HTML Respose code is used
*
* 301 Moved Permanently
* The URL of the requested resource has been changed permanently. The new URL is given in the response.
*
* 302 Found
* This response code means that the URI of requested resource has been changed temporarily.
* Further changes in the URI might be made in the future. Therefore, this same URI should be used by the client in future requests.
*
* 307 Temporary Redirect
* The server sends this response to direct the client to get the requested resource at another URI with the same method that was used in the prior request.
* This has the same semantics as the 302 response code, with the exception that the user agent must not change the HTTP method used.
*
* 308 Permanent Redirect
* This means that the resource is now permanently located at another URI, specified.
* This has the same semantics as the 301 response code, with the exception that the user agent must not change the HTTP method used.
*
* @param int $code The code requeted
* @return int Returns the code requested if valid, else returns DEFAULT_REDIRECTION_CODE
*/
function validateRedirectionHtmlResponseCode($code) {
return (in_array($code, array(301, 302, 307, 308))) ? $code : DEFAULT_REDIRECTION_CODE;
}
/**
* Validates if a short URL is not a reserved command
*
* These are:
* - `-` - show info page
* - `@` - show QR-code
* - `*` - show sitemap.xml, disabled if priavte
* - `+` - pass data to a plugin
* - `#` - expired short
* - `e` - show error page
* - `h` - "hello" or "home" page
* - `f` - "file" fetch internal file, e.g. logo.png
* - `u` - redirect URL
* - `x` - settings missing, show "needs install" page
*/
function validateShortURLisNotCommand($s_url) {
return !in_array($s_url, ['-', '@', '*', '+', 'e', 'h', 'f', 'u', 'x']);
}
/**
* Check if the second character of a string is an "=" character.
*
* @param string $str The string to check.
* @return bool Returns true if the second character is "=", false otherwise.
*/
function isSecondCharAnEqual($str) {
if (!is_string($str) || strlen($str) < 2) { return false; }
return $str[1] === '=';
}
if (DEBUG) {
/**
* for DEGUG-ing
*/
function var_dump_ret($mixed, $name = false, $echo = false) {
ob_start();
var_dump($mixed);
$ret = !$name ? '' : '<b>' . $name . '</b> = ';
$ret .= '<code>'. htmlspecialchars(ob_get_contents(), ENT_QUOTES) . '</code><br>';
ob_end_clean();
if (!$echo) return $ret;
echo str_replace(['"', '>', '<'], ['"', '>', '<'], strip_tags( $ret ));
}
function dump_globals() {
global $config, $command, $promise, $content, $short, $url, $error;
print( var_dump_ret($command, '$command') );
print( var_dump_ret($promise, '$promise') );
print( var_dump_ret($content, '$content') );
print( var_dump_ret($short, '$short') );
print( var_dump_ret($url, '$url') );
print( var_dump_ret($error, '$error') );
print( var_dump_ret($config, '$config') );
}
}
function strip_trailing_slash($url) {
return rtrim($url, '/');
}
function add_trailing_slash($url) {
return strip_trailing_slash($url) . '/';
}
/**
* Get the URL of the calling PHP file
* !! not the best implementation, but PHP does not do this well
*/
function getCurrentUrl() {
global $config;
if (isset($config->base_url) && !empty($config->base_url)) {
$base = strip_trailing_slash( $config->base_url );
} else {
$base = strip_trailing_slash( 'http' .
((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') ? 's' : '') .
'://' .
$_SERVER['HTTP_HOST'] .
dirname($_SERVER['PHP_SELF']) );
}
return add_trailing_slash($base) . basename($_SERVER['PHP_SELF']);
}
/**
* Assume the query string of the calling PHP file
* !! not the best way to do this, but hell!, what does work ???
*/
function getCurrentQuery() {
$self = dirname($_SERVER['PHP_SELF']) . '/' . basename($_SERVER['PHP_SELF']);
$ret = $_SERVER['REQUEST_URI'];
$p = strpos($ret, $self);
if (0 === $p) $ret = substr($ret, strlen($self));
$p = strpos($ret, '?');
if (false !== $p) {
// get part after "?"
$ret = substr($ret, $p + 1);
} else {
// strip "/" from stings incase this is installed in a sub-folder
$ret = explode('/', $ret);
$ret = $ret[ count($ret) - 1 ]; // get the last one
}
return $ret;
}
/**
* find the `command=promise` pair in `$_REQUEST`
*/
function processQueryString($find) {
global $command, $promise;
if ($command !== false) return; // already has one
$find = strtolower($find);
if (isset($_REQUEST[$find])) {
$command = $find;
$promise = $_REQUEST[$find];
} else if (isset($_REQUEST[strtoupper($find)])) {
$command = $find;
$promise = $_REQUEST[strtoupper($find)];
} else {
$promise = false;
}
if (empty($promise)) $promise = false;
}
/**
* Sets the HTTP response headers so that the client does not cache the result
*/
function http_response_cache_now() {
$ts = time();
header('Expires: ' . date(DATE_RFC822, $ts));
header('Last-Modified: ' . date(DATE_RFC822, $ts));
header('Cache-Control: no-cache, must-revalidate');
header('Pragma: no-cache' );
}
/**
* Sets the HTTP response headers so that the client won't ask for the resource again
*/
function http_response_cache_never() {
header('Cache-Control: max-age=31536000, immutable');
}
/**
* Sets the HTTP response header so that the client caches the result for `$secs` seconds
*
* @param int $secs The amount of seconds to add to now
*/
function http_response_cache_for($secs = 0) {
if (0 == $secs) {
http_response_cache_now();
return;
}
$ts = time();
header('Expires: ' . date(DATE_RFC822, $ts + $secs));
header('Retry-After: ' . date(DATE_RFC822, $ts + $secs - 1));
header('Last-Modified: ' . date(DATE_RFC822, $ts));
header('Cache-Control: max-age=' . $secs . ', must-revalidate');
header('vary: User-Agent');
header('ETag: W/"' . date('YmdHis', $ts) . '"');
}
/**
* This is the main redirection code!!
*/
function http_response_redirection($url, $code, $cache_for) {
if (DEBUG) {
print '<html><body>';
print 'Redirect to <code>' . $url . '</code><br>';
print '<pre><code>';
dump_globals();
print '</code></pre>';
print '</body></html>';
die();
}
http_response_code($code);
header('Location: ' . $url, TRUE, $code);
http_response_cache_for($cache_for);
header('Referer: ' . getCurrentUrl()); // be nice and tell the other server where you came from
// just in case all goes wrong on the browser
echo '<html><body>';
echo 'Redirect to <a href="' . $url . '">' . mb_strimwidth($url, 0, 35, '...') . '</a>.';
echo '</body></html>';
}
/**
* A function that uses `{{` `}}`, like [Liquid](https://shopify.github.io/liquid/), to replace text.
*
* Usage: `liquefyStr("Hello {{name}}, welcome to {{place}}!", ['name' => 'Alice', 'place' => 'Wonderland']);`
*/
function liquefyStr($str, $replacements = []) {
if (!empty($replacements && is_array($replacements))) {
// Create the regex pattern
$pattern = "/" . preg_quote('{{', '/') . "\s*(.*?)\s*" . preg_quote('}}', '/') . "/i";
// Use a callback function to handle replacements
$callback = function($matches) use ($replacements) {
$key = strtolower(trim($matches[1]));
return isset($replacements[$key]) ? $replacements[$key] : $matches[0];
};
// Perform the replacement
$str = preg_replace_callback($pattern, $callback, $str);
}
return $str;
}
/**
* generates the URL for the QR-Code API provider
*/
function generateQRCodeURL($url, $qr_code_engine) {
return liquefyStr($qr_code_engine, ['url' => rawurlencode($url)]);
}
/**
*
*/
function new_file_get_contents($url) {
global $error;
$error = $curl = $data = false;
if (function_exists('curl_init')) $curl = @curl_init(); // Initialize cURL
if (false !== $curl) {
curl_setopt( $curl, CURLOPT_URL, $url );
curl_setopt( $curl, CURLOPT_RETURNTRANSFER, true); // Return the response as a string
curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, true ); // Follow redirects (if any)
curl_setopt( $curl, CURLOPT_MAXREDIRS, 10 );
curl_setopt( $curl, CURLOPT_HEADER, false );
curl_setopt( $curl, CURLOPT_BINARYTRANSFER, true );
curl_setopt( $curl, CURLOPT_HTTPGET, true );
curl_setopt( $curl, CURLOPT_TIMEOUT, DEFAULT_CURL_TIMEOUT ); // Set a timeout in seconds
curl_setopt( $curl, CURLOPT_CONNECTTIMEOUT, DEFAULT_CURL_TIMEOUT );
$data = curl_exec( $curl );
if (false === $data) { // fetch and dump
$error = 'cURL Error ' . curl_errno($curl) . ': ' . curl_error($curl);
}
curl_close( $curl ); // close cURL resource, and free up system resources
} else {
// cURL is not avail.
$opts = [ 'http' => [ 'method' => 'GET' ]];
$context = stream_context_create($opts);
$data = file_get_contents( $file_url, false, $context );
if (false === $data) {
$error = 'PHP `file_get_contents` Error: ' + error_get_last();
}
}
return $data;
}
/**
* fetches an external file with cURL or ``
*/
function http_get_and_print_remote_file($file_url, $content_type, $filename = false, $cache_for = DEFAULT_CACHE_TIME) {
global $error;
$error = false;
header('Content-Type: ' . $content_type, true);
if (!$filename) {
header('Content-Disposition: inline; filename="' . $filename . '"');
}
http_response_cache_for( $cache_for );
$content = new_file_get_contents($file_url);
if (false !== $content) {
print( $content );
} else {
header('Content-Type: text/plain', true);
echo $error;
}
return !!$content; // cast as bool
}
/**
* Translates the JSON error code to english
*/
function json_last_error_text() {
global $json_exception;
if (isset($json_exception)) {
$r = $json_exception->getMessage();
} else {
$e = json_last_error();
$r = $e;
// @see: https://www.php.net/manual/en/function.json-last-error.php, for descriptions
switch ($e) {
case JSON_ERROR_DEPTH: $r = 'JSON_ERROR_DEPTH'; break;
case JSON_ERROR_STATE_MISMATCH: $r = 'JSON_ERROR_STATE_MISMATCH'; break;
case JSON_ERROR_CTRL_CHAR: $r = 'JSON_ERROR_CTRL_CHAR'; break;
case JSON_ERROR_SYNTAX: $r = 'JSON_ERROR_SYNTAX'; break;
case JSON_ERROR_UTF8: $r = 'JSON_ERROR_UTF8'; break;
case JSON_ERROR_RECURSION: $r = 'JSON_ERROR_RECURSION'; break;
case JSON_ERROR_INF_OR_NAN: $r = 'JSON_ERROR_INF_OR_NAN'; break;
case JSON_ERROR_UNSUPPORTED_TYPE: $r = 'JSON_ERROR_UNSUPPORTED_TYPE'; break;
case JSON_ERROR_INVALID_PROPERTY_NAME: $r = 'JSON_ERROR_INVALID_PROPERTY_NAME'; break;
case JSON_ERROR_UTF16: $r = 'JSON_ERROR_UTF16'; break;
}
}
return $r;
}
/**
* Calls `json_decode` with the correct settings
*/
function json_decode_helper($string) {
global $json_exception;
try {
$r = json_decode($string, true, JSON_BIGINT_AS_STRING | JSON_INVALID_UTF8_SUBSTITUTE | JSON_OBJECT_AS_ARRAY | JSON_THROW_ON_ERROR );
} catch (Exception $e) {
$json_exception = clone $e;
$r = false;
}
return $r;
}
if (!function_exists('array_is_list')) {
/**
* Determines if the given array is a list.
* An array is considered a list if its keys consist of consecutive numbers from 0 to count($array)-1.
*/
function array_is_list(array $arr) {
if ($arr === []) return true;
return array_keys($arr) === range(0, count($arr) - 1);
}
}
/**
* Clean a string for use as a filename or function name
*/
function sanitize($string) {
return preg_replace('/[^a-z0-9_]/', '', strtolower($string));
}
// ---------- End of helpers ---------
/* ┌────────────────────────────────┐
* │ The good stuff starts here!! │
* └────────────────────────────────┘
*/
// Initialize Globals
$command = $promise = $content = $short = $url = $expiry = false;
$config = (object) $config;
if (!isset($urls)) $urls = false;
header('X-Powered-By: ClickIt-URL-Shortener, by Silvino Rodrigues (@silvinor)', true);
/*
* Note: Data will always load from in-file '$config->json_data_filename',
* but once loaded the content of the json may override the $config object.
*/
if ((false === $urls) && file_exists($config->json_data_filename)) {
$json_data = json_decode_helper( @file_get_contents($config->json_data_filename) );
if ((null == $json_data) || (JSON_ERROR_NONE !== json_last_error()) ) {
$command = 'e';
$content = '<p>JSON error <b>' . json_last_error_text() . '</b> in file <code>' . $config->json_data_filename . '</code></p>';
$promise = 500;
} else {
if (isset($json_data['urls'])) $urls = $json_data['urls'];
if (isset($json_data['config'])) $config = (object) array_merge( (array) $config, $json_data['config'] );
}
} else {
// JSON file not there, ask for it; a.k.a. needs install
$command = 'x';
}
if (DEBUG) {
$config->private = false;
if (isset($config->base_url)) unset($config->base_url);
}
processQueryString('e');
if (('e' == $command) && !$promise) $promise = 405;
processQueryString('f');
processQueryString('u');
/* Special case where .htaccess file 'generate's a query string like this `u=f=logo.svg` */
if ( ('u' == $command) && (strlen($promise) > 2) && isSecondCharAnEqual($promise) ) {
$command = strtolower( substr($promise, 0, 1) );
$promise = substr($promise, 2);
}
processQueryString('@'); // asking for QR-code
processQueryString('*'); // asking for sitemap.xml
if (!$command) {
// Command not set yet, so assume it's a redirection URL
$command = 'u';
$promise = getCurrentQuery();
}
/* ┌────────────┐
* │ Lets go! │
* └────────────┘
*/
if (in_array($command, ['u', '@', '-'])) {
// no query situation - if there is a url named `0` then do that, else show hello screen ;)
if (empty($promise)) $promise = '0';
// Lets go! ... find the url in the datafile
if (false !== $urls) {
$promise = strtolower($promise);
if (in_array($command, ['@', '-'])) {
$special = $command;
} else {
$special = substr($promise, -1);
if (in_array($special, ['@', '-'])) {
$promise = substr($promise, 0, strlen($promise) - 1);
} else {
$special = false;
}
}
$dest = isset($urls[$promise]) ? $urls[$promise] : false;
if (false !== $dest) {
$short = $promise; // keep this for info and QR-code gen
$url = false;
$expiry = false;
if (is_array($dest)) {
if (array_is_list($dest)) {
$url = isset($dest[0]) ? $dest[0] : false;
$promise = isset($dest[1]) ? $dest[1] : DEFAULT_REDIRECTION_CODE;
$expiry = isset($dest[2]) ? $dest[2] : false;
} else {
if (isset($dest['plugin']) && !empty($dest['plugin'])) {
$url = sanitize($dest['plugin']);
$promise = $dest;
unset($promise['plugin']);
$command = '+';
} else {
$url = isset($dest['url']) ? $dest['url'] : false;
$promise = isset($dest['code']) ? $dest['code'] : DEFAULT_REDIRECTION_CODE;
}
}
} else if (is_string($dest)) {
if (strpos($dest, ',')) {
$tmp = array_map('trim', explode(',', $dest));
$url = isset($tmp[0]) ? $tmp[0] : false;
$promise = isset($tmp[1]) ? $tmp[1] : DEFAULT_REDIRECTION_CODE;
$expiry = isset($tmp[2]) ? $tmp[2] : false;
} else {
// just a simple string
$url = $dest;
$promise = DEFAULT_REDIRECTION_CODE;
}
} // `$url == false` will handle the rest
if (false == $url) {
$command = 'e';
$promise = 500;
} else if (false !== $expiry) {
$expiry = strtotime($expiry);
}
if (('u' == $command) && (false !== $special)) $command = $special;
} else if ('0' == $promise) {
// no default, so show hello
$command = 'h';
} else {
// URL not found conditon!
$command = 'e';
$short = $promise;
$promise = 404;
}
}
}
// all is good, but has it expired?
if ((false !== $expiry) && ($expiry <= time())) {
$command = 'e';
$short = $promise;
$promise = 418;
}
/* ┌─────────────────────────────────┐
* │ This is the command processor │
* └─────────────────────────────────┘
*/
$title = $config->default_title;
$inc_fa = false;
$inc_js = false;
$inc_highlighter = false;
$color = 'default';
switch ($command) {
case '-':
// --- info page ---
$heading = '<i class="fa fa-circle-info"></i> Info';
$inc_fa = true;
if (DEBUG) {
$filename = getCurrentUrl() . '?u=' . $short . '@';
} else {
$filename = generateQRCodeURL($url, $config->qr_code_engine);
}
$content = '<p class="">';
if (!empty($short)) $content .= 'Short URL = <code>' . $short . '</code><br>';
if (!empty($url)) $content .= 'Destination URL = <code>' . $url . '</code><br>';
if (!empty($promise)) $content .= 'Redirecting with code: <code>' . $promise . '</code>';
$content .= '</p>';
if (!empty($url)) $content .= '<p class="text-center"><img src="' . $filename . '" class="img-fluid img-thumbnail img-qrcode"></p>';
if (!empty($url)) $content .= '<div class="text-center"><a class="btn btn-lg btn-outline-secondary" href="' . $url . '"' .
' title="' . $url . '"' .
' target="_blank"' .
'>' . mb_strimwidth($url, 0, 25, '...') . ' <i class="ml-2 fas fa-up-right-from-square"></i></a></div>';
break;
case '@':
// --- QR-code ---
// 'qr_content_type' => 'image/svg+xml',
// 'qr_file_ext' => '.svg',
$url = generateQRCodeURL($url, $config->qr_code_engine);
if (isset($config->qr_content_type)) {
$filename = isset($config->qr_file_ext) ? sanitize($short) . $config->qr_file_ext : false;
http_get_and_print_remote_file($url, $config->qr_content_type, $filename);
} else {
http_response_redirection($url, 307, 0); // always 307, always no-cache
}
die(); // !!!
break;
case '*':
// --- SiteMap.XML ---
if (!$config->private) {
header('Content-Type: text/xml', true);
header('Content-Disposition: inline; filename="sitemap.xml"');
echo '<?xml version="1.0" encoding="UTF-8"?>' . PHP_EOL;
echo '<!-- This should never get called. The robots.txt file prohibits it. -->' . PHP_EOL;
echo '<?xml-stylesheet type="text/xsl" href="sitemap.xsl"' . '?' . '>' . PHP_EOL;
echo '<urlset' .
' xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"' .
// ' xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"' .
// ' xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"' .
'>' . PHP_EOL;
if (!empty($urls)) {
foreach ($urls as $short => $url) {
echo "\t" .'<url>';
echo '<loc>' . add_trailing_slash(getCurrentUrl()) . '?u=' . rawurlencode($short) . '</loc>';
// not doing `<lastmod>`
echo '</url>' . PHP_EOL;
}
}
echo '</urlset>';
die(); // !!!
} else {
$command = 'e';
$promise = 401;
}
break;
case '+':
// --- Plugin engine ---
$fn = 'plugin_' . $url . '.php';
if (file_exists($fn)) {
@include_once( $fn ); // load the plugin
$cnf = 'plugin_' . $url; // extract configuration from config
if (isset($config->$cnf)) {
$cnf = json_decode(json_encode($config->$cnf), true); // nasty, but can go deep
} else {
$cnf = false;
}
if (false !== $cnf) {
$cnf['short'] = $short;
$cnf['self'] = add_trailing_slash(getCurrentUrl());
}
$fn = 'f_' . $url . '_redirection';
if (isset($special)) {
switch ($special) {
case '@':
$fn .= '_at';
$cnf['qr_code_engine'] = $config->qr_code_engine;
if (isset($config->qr_content_type))
$cnf['qr_content_type'] = $config->qr_content_type;
if (isset($config->qr_file_ext))
$cnf['qr_file_ext'] = $config->qr_file_ext;
break;
case '-':
$fn .= '_dash';
break;
}
}
if (function_exists($fn)) {
$result = $fn($promise, $cnf); // call the plugin function, with conf.
if ($result) {
die(); // !!! All good, plugin did its thing.
} else {
$command = 'e';
if (!is_numeric($promise)) {
$promise = 500;
} elseif ($promise < 500 || $promise > 599) {
$promise = 510;
}
if (isset($error) && !!$error) {
$content = '<h2 class="text-center"><small class="text-muted">';
$content .= '<tt>' . strtoupper($url) . '</tt> Plugin Error: ';
$content .= '<i>' . $error . '</i>';
$content .= '</small></h2>';
}
}
} else {
$command = 'e';
$promise = 501;
$url = $fn . '()';
}
} else {
$command = 'e';
$promise = 501;
}
break;
case 'e':
/* ┌─────────────────────────────────┐
* │ Ignore for now, process later │
* └─────────────────────────────────┘
*/
break;
case 'h':
$heading = '<i class="fas fa-handshake"></i> Hello';
$inc_fa = true;
$content = '<div class="text-center">My name is <tt><b>' . $_SERVER['SERVER_NAME'] . '</b></tt></div>';
break;
case 'f':
// --- Include files, inline ---
if ( !empty($images) ) {
$promise = strtolower($promise); // lowercase filenames!
if (array_key_exists($promise, $images)) {
$ct = isset($images[$promise]['c']) ? $images[$promise]['c'] : 'text/plain';
if (isset($images[$promise]['d']) && !empty(isset($images[$promise]['d']))) {
if (isset($images[$promise]['b']) && $images[$promise]['b']) {
$content = base64_decode( $images[$promise]['d'] );
} else {
$content = $images[$promise]['d'];
}
} else {
$content = '';
}
$hold = isset($images[$promise]['h']) ? intval($images[$promise]['h']) : DEFAULT_CACHE_TIME;
header('Content-Type: ' . $ct, true);
header('Content-Disposition: inline; filename="' . $promise . '"');
http_response_cache_for( $hold );
print( $content );
die(); // !!!
} else {
$content = '<p class="h3 text-center">File <code>' . $promise . '</code> not found</p>';
$promise = 404;
}
}
$command = 'e'; // if you got here then you're in error
break;
case 'u':
/* ┌───────────────────┐
* │ URL redirection │
* └───────────────────┘
*/
$promise = validateRedirectionHtmlResponseCode($promise); // Just to make sure :)
if ((302 == $promise) || (307 == $promise)) {
http_response_cache_now();
}
if (DEBUG) {
$heading = '<i class="fas fa-location-arrow"></i> ' . $promise . ' <small class="text-danger">DEBUG</small>';
$inc_fa = true;
$content = '<div class="text-center"><a class="btn btn-lg btn-outline-secondary" href="' . $url . '"' .
' title="' . $url . '"' .
' target="_blank"' .
'>' . mb_strimwidth($url, 0, 35, '...') . ' <i class="ml-2 fas fa-up-right-from-square"></i></a></div>';
} else {
$cache_for = DEFAULT_CACHE_TIME;
if (isset($expiry) && (false !== $expiry)) {
$now = time();
$delta = $expiry - $now;
if ($delta < $cache_for) $cache_for = $delta;
}
http_response_redirection($url, $promise, $cache_for); // !!! GETS GO!
die(); // !!!
}
break;
case 'x':
// --- No JSON file ---
$heading = '<b class="text-danger">Error:</b> Site not set up';
$content = '<p class="card-text">File <code>' . $config->json_data_filename . '</code> not found.</p>
<p class="card-text">Please create this file on the base folder of the server with the following content:<br>
<pre class="border p-1 shadow"><code class="language-json">{
"urls": {
"x": "https://{your_url}",
"y": [ "https://{your_url}", 302 ]
}
}</code></pre>
</p>
<p>Read the docs <a target="_blank" href="https://github.com/silvinor/clickit-url-shortener/blob/master/docs/readme.md">here</a>.</p>';
$href = 'https://github.com/silvinor/clickit-url-shortener';
$href = '';
$btn_text = '<i class="fa-brands fa-github-alt"></i> View project';
$color = 'info';
$inc_highlighter = true;
break;
default:
/* ┌───────────────────────────────┐
* │ WTF? You shoudn't be here! │
* └───────────────────────────────┘
*/
$color = 'secondary';
$heading = '<b>WTF</b> <i class="fas fa-question"></i>';
$inc_fa = true;
if (!isset($content)) $content = '';
$content .= var_dump_ret($command, '$command');
$content .= var_dump_ret($promise, '$promise');
$content .= var_dump_ret($url, '$url');
$content .= var_dump_ret($short, '$short');
http_response_code(500); header('X-Server-Error: WTF?', true, 500);
http_response_cache_now();
}
if ('e' == $command) { // Error page, common
// ----- Error -----
if (!is_numeric($promise) || ($promise < 100) || ($promise > 599)) $promise = 501;
http_response_code($promise);
header('X-Server-Error: ' . $promise, true, $promise);
if ($promise >= 100 && $promise <= 199) {
$_fa = 'circle-info';
$color = 'info';
} elseif ($promise >= 200 && $promise <= 299) {
$_fa = 'thumbs-up';
$color = 'success';
} elseif ($promise >= 300 && $promise <= 399) {
$_fa = 'location-arrow';
$color = 'primary';
} elseif ($promise >= 400 && $promise <= 499 && $promise <> 404) {
$_fa = 'circle-exclamation';
$color = 'warning';
} else {
$_fa = 'triangle-exclamation';
$color = 'danger';
}
// Build string for some 4xx, and the 500 client response codes
if (empty($content)) {
$content .= '<h2 class="text-center"><small class="text-muted">';
switch ($promise) {
case 400: $content .= 'Bad Request'; break;
case 401: $content .= 'Unauthorized'; break;
case 403: $content .= 'Forbidden'; break;
case 404:
if (!$short) {
$content .= 'Not Found';
} else {
$content .= 'URL not found';
}
break;
case 410: $content .= 'Gone'; break;
case 418: $content .= 'Expired'; break; // I'm a tea pot!!
case 500: $content .= 'Internal Server Error'; break;
case 501:
$content .= 'Not Implemented';
if (!empty($url)) $content .= ': <code>' . $url . '</code>';
break;
default: break;
}
$content .= '</small></h2>';
}
$heading = '<i class="fas fa-' . $_fa . '"></i> ' . $promise;
$heading = '<span class="text-' . $color . '">' . $heading . '</span>';
if (DEBUG) {
echo '<!--' . PHP_EOL;
var_dump_ret($command, '$command', true);
var_dump_ret($promise, '$promise', true);
var_dump_ret($url, '$url', true);
var_dump_ret($short, '$short', true);
echo '-->';
}
$inc_fa = true;
if ((410 == $promise) || (418 == $promise)) {
if (418 == $promise) header('HTTP/1.1 418 Expired', true, 418); // Override I'm a teapot
http_response_cache_never();
} else {
http_response_cache_now();
}
}
/* ┌─────────────────────────────┐
* │ HTML Goodness starts here │
* └─────────────────────────────┘
*/
?><!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link rel="stylesheet" href="<?= $config->bootstrap_css['url'] ?>" integrity="<?= $config->bootstrap_css['hash'] ?>" crossorigin="anonymous" media="all">
<?php if ($inc_fa) { ?>
<link rel="stylesheet" href="<?= $config->fontawesome_css['url'] ?>" integrity="<?= $config->fontawesome_css['hash'] ?>" crossorigin="anonymous" media="all">
<?php } ?>
<?php if ($inc_highlighter) { ?>
<link rel="stylesheet" href="<?= $config->highlight_css['url'] ?>" integrity="<?= $config->highlight_css['hash'] ?>" crossorigin="anonymous">
<?php } ?>
<link rel="apple-touch-icon" href="<?= add_trailing_slash(getCurrentUrl()) . '?f=favicon.png' ?>">
<link rel="icon" type="image/png" href="<?= add_trailing_slash(getCurrentUrl()) . '?f=favicon.png' ?>">
<link rel="icon" type="image/svg+xml" href="<?= add_trailing_slash(getCurrentUrl()) . '?f=icon.svg' ?>" sizes="any">
<title><?= $title ?></title>
<style>
.wrapper { position: absolute; top: 0; left: 0; width: 100%; height: 100%; display: flex; justify-content: center; align-items: center; }
.dialog { display: flex; z-index: 100; max-width: 100%; }
.logo { max-height: 64px; max-width: 100%; }
.card { border-radius: 1em !important; }
.card-header { border-top-left-radius: 1em !important; border-top-right-radius: 1em !important; }
.card-body p { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
</style>
<?php if (isset($config->extra_css) && !empty($config->extra_css)) { echo $config->extra_css . PHP_EOL; } ?>
</head>
<body>
<div class="wrapper">
<div class="dialog card border rounded-lg shadow-lg text-center border-<?= $color ?>">
<h5 class="card-header bg-light px-5 py-3 border-<?= $color ?>"><img src="<?= add_trailing_slash(getCurrentUrl()) . '?f=logo.svg' ?>" class="logo"></h5>
<div class="card-body text-left">
<h1 class="card-title text-center"><?= $heading ?></h1>
<?= $content ?>
</div>