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<?php
/*
Plugin Name: Random ShortURLs
Plugin URI: https://yourls.org/
Description: Assign random keywords to shorturls, like bitly (sho.rt/hJudjK)
Version: 1.2
Author: Ozh
Author URI: https://ozh.org/
*/
/* Release History:
*
* 1.0 Initial release
* 1.1 Added: don't increment sequential keyword counter & save one SQL query
* Fixed: plugin now complies to character set defined in config.php
* 1.2 Adopted as YOURLS core plugin under a new name
* Now configured via YOURLS options instead of editing plugin file
*/
// No direct call
if( !defined( 'YOURLS_ABSPATH' ) ) die();
// Only register things if the old third-party plugin is not present
if( function_exists('ozh_random_keyword') ) {
yourls_add_notice( "<b>Random ShortURLs</b> plugin cannot function unless <b>Random Keywords</b> is removed first." );
} else {
// filter registration happens conditionally, to avoid conflicts
// settings action is left out here, as it allows checking settings before deleting the old plugin
yourls_add_filter( 'random_keyword', 'ozh_random_shorturl' );
yourls_add_filter( 'get_next_decimal', 'ozh_random_shorturl_next_decimal' );
}
// Generate a random keyword
function ozh_random_shorturl() {
$possible = yourls_get_shorturl_charset() ;
$str='';
while( strlen( $str ) < yourls_get_option( 'random_shorturls_length', 5 ) ) {
$str .= substr($possible, rand( 0, strlen( $possible ) - 1 ), 1 );
}
return $str;
}
// Don't increment sequential keyword tracker
function ozh_random_shorturl_next_decimal( $next ) {
return ( $next - 1 );
}
// Plugin settings page etc.
yourls_add_action( 'plugins_loaded', 'ozh_random_shorturl_add_settings' );
function ozh_random_shorturl_add_settings() {
yourls_register_plugin_page( 'random_shorturl_settings', 'Random ShortURLs Settings', 'ozh_random_shorturl_settings_page' );
}
function ozh_random_shorturl_settings_page() {
// Check if form was submitted
if( isset( $_POST['random_length'] ) ) {
// If so, verify nonce
yourls_verify_nonce( 'random_shorturl_settings' );
// and process submission if nonce is valid
ozh_random_shorturl_settings_update();
}
$random_length = yourls_get_option('random_shorturls_length');
$nonce = yourls_create_nonce( 'random_shorturl_settings' );
echo <<<HTML
<main>
<h2>Random ShortURLs Settings</h2>
<form method="post">
<input type="hidden" name="nonce" value="$nonce" />
<p>
<label>Random Keyword Length</label>
<input type="number" name="random_length" min="1" max="128" value="$random_length" />
</p>
<p><input type="submit" value="Save" class="button" /></p>
</form>
</main>
HTML;
}
function ozh_random_shorturl_settings_update() {
$random_length = $_POST['random_length'];
if( $random_length ) {
if( is_numeric( $random_length ) ) {
yourls_update_option( 'random_shorturls_length', intval( $random_length ) );
} else {
echo "Error: Length given was not a number.";
}
} else {
echo "Error: No length value given.";
}
}
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