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<?php /* Plugin Name: Expiry Plugin URI: https://github.com/joshp23/YOURLS-Expiry Description: Will set expiration conditions on your links (or not) Version: 2.4.1 Author: Josh Panter Author URI: https://unfettered.net / // No direct call if( !defined( 'YOURLS_ABSPATH' ) ) die(); / * * EARLY LOADER FUNCTIONS * * / yourls_add_action( 'plugins_loaded', function () { // Register admin forms yourls_register_plugin_page( 'expiry', 'Expiry', 'expiry_do_page' ); // Is authMgrPlus active? if( yourls_is_active_plugin( 'authMgrPlus/plugin.php' ) ) { yourls_add_filter( 'amp_action_capability_map', function( $var ) { $var += ['expiry-stats' => ampCap::ViewStats]; return $var; } ); yourls_add_filter( 'amp_button_capability_map', function( $var ) { $var += ['expiry' => ampCap::DeleteURL]; return $var; } ); yourls_add_filter( 'amp_restricted_buttons', function( $var ) { $var += ['expiry']; return $var; } ); } // Expiry-Change-Error-MSG if( !yourls_is_active_plugin('change-error-messages/plugin.php') ) { // If the keyword exists, display the long URL in the error message yourls_add_filter( 'add_new_link', function ( $return, $url, $keyword, $title ) { if ( isset( $return['code'] ) ) { if ( $return['code'] === 'error:keyword' ){ $long_url = yourls_get_keyword_longurl( $keyword ); if ($long_url){ $return['message'] = 'The keyword "' . $keyword . '" already exists for: ' . $long_url; } elseif ( yourls_keyword_is_reserved( $keyword ) ){ $return['message'] = "The keyword '" . $keyword . "' is reserved"; } } elseif ( $return['code'] === 'error:url' ){ if ($url_exists = yourls_long_url_exists( $url )){ $keyword = $url_exists->keyword; $return['status'] = 'success'; $return['message'] = 'This URL already has a short link: ' . YOURLS_SITE .'/'. $keyword; $return['title'] = $url_exists->title; $return['shorturl'] = YOURLS_SITE .'/'. $keyword; } } } return yourls_apply_filter( 'after_custom_error_message', $return, $url, $keyword, $title ); }); } }); / * * ADMIN PAGE * * / // Display page 0.01 - maybe insert some JS and CSS files to head yourls_add_action( 'html_head', function ($context) { if ( $context[0] == 'plugin_page_expiry' ) { $home = YOURLS_SITE; echo "<link rel=\"stylesheet\" href=\"".$home."/css/infos.css?v=".YOURLS_VERSION."\" type=\"text/css\" media=\"screen\" />\n"; echo "<script src=\"".$home."/js/infos.js?v=".YOURLS_VERSION."\" type=\"text/javascript\"></script>\n"; } elseif ($context[0] == 'index') { $loc = yourls_plugin_url(dirname(__FILE__)); $file = dirname( __FILE__ )."/plugin.php"; $data = yourls_get_plugin_data( $file ); $v = $data['Version']; echo "\n<! --------------------------Expiry Start-------------------------- >\n"; echo "<script src=\"".$loc."/assets/expiry.js?v=".$v."\" type=\"text/javascript\"></script>\n"; echo "<link rel=\"stylesheet\" href=\"".$loc."/assets/expiry.css?v=".$v."\" type=\"text/css\" />\n"; echo "<! --------------------------Expiry END---------------------------- >\n"; } }); function expiry_do_page() { expiry_update_ops(); expiry_flush(); $opt = expiry_config(); // neccessary values for display $globalExp = array("none" => " ", "click" => " ", "clock" => " "); switch ($opt[9]) { case 'click': $globalExp['click'] = 'selected'; break; case 'clock': $globalExp['clock'] = 'selected'; break; default: $globalExp['none'] = 'selected'; break; } $ageMod = array("min" => " ", "day" => " ", "hour" => " "); switch ($opt[7]) { case 'min': $ageMod['min'] = 'selected'; break; case 'hour': $ageMod['hour'] = 'selected'; break; default: $ageMod['day'] = 'selected'; break; } $intercept = array("simple" => " ", "custome" => " ", "template" => " "); switch ($opt[0]) { case 'template': $intercept['template'] = 'selected'; break; case 'custome': $intercept['custome'] = 'selected'; break; default: $intercept['simple'] = 'selected'; break; } $ciVisChk = ( $opt[0] !== 'custome' ? 'none' : 'inline' ); $unique = ( YOURLS_UNIQUE_URLS == true ) ? ' disabled="disabled" <p><strong>Notice:</strong> <code>YOURLS_UNIQUE_URLS</code> is set to <code>true</code>. This value must be set to <code>false</code> to use this function.</p>' : ' > Use a global post-expiration URL?'; if( $opt[5] == 'false' ) { $gpxVisChk = 'none'; $gpxChk = null; } else { $gpxVisChk = 'inline'; $gpxChk = 'checked'; } $expChk = ( $opt[3] == 'true' ? 'checked' : null ); $tblChk = ( $opt[2] == 'true' ? 'checked' : null ); // Create nonce $nonce = yourls_create_nonce( 'expiry' ); // Misc for cron example pre-formatting $sig = yourls_auth_signature(); $site = YOURLS_SITE; $cronEG = rawurlencode('<html><body><pre>0 * * * wget -O - -q -t 1 <strong>'.$site.'</strong>/yourls-api.php?signature=<strong>'.$sig.'</strong>&format=simple&action=prune&scope=expired >/dev/null 2>&1</pre></body></html>'); echo <<<HTML <div id="wrap"> <div id="tabs"> <div class="wrap_unfloat"> <ul id="headers" class="toggle_display stat_tab"> <li class="selected"><a href="#stat_tab_config"><h2>Config</h2></a></li> <li><a href="#stat_tab_exp_list"><h2>Expiry List</h2></a></li> <li><a href="#stat_tab_prune"><h2>Prune</h2></a></li> <li><a href="#stat_tab_api"><h2>API</h2></a></li> </ul> </div> <div id="stat_tab_config" class="tab"> <form method="post"> <br> <h3>Default Expiry Type</h3> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <select name="expiry_global_expiry" size="1" > <option value="click" {$globalExp['click']}>Click Counter</option> <option value="clock" {$globalExp['clock']}>Timer</option> <option value="none" {$globalExp['none']}>None</option> </select> <p>Set this if you want a global expiration condition for ALL new links.</p> <p>For example, you can make it so that every new link will expire in 3 days unless otherwise specified. Leave to 'none' for standard YOURLS behavior.</p> </div> <br> <h3>Default Click Counter Value</h3> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <input type="hidden" name="expiry_default_click" value="50"> <input type="number" name="expiry_default_click" min="1" max="99999" value=$opt[8]><br> <p>If the expiry type is set to 'click' and no 'count' value is set, expiry falls back to this value.</p> </div> <br> <h3>Default Countdown Time Span</h3> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <input type="hidden" name="expiry_default_age" value="50"> <input type="number" name="expiry_default_age" min="1" max="100" value=$opt[6]> <select name="expiry_default_age_mod" > <option value="min" {$ageMod['min']}>Minute(s)</option> <option value="hour" {$ageMod['hour']}>Hour(s)</option> <option value="day" {$ageMod['day']}>Day(s)</option> </select> <p>If the expiry type is set to 'clock' with no other conditions set, expiry falls back to this value.</p> </div> <br> <h3>Expiry Intercept Behavior</h3> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <select name="expiry_intercept" size="1" > <option value="simple" {$intercept['simple']}>YOURLS style</option> <option value="template" {$intercept['template']}>Bootstrap Template</option> <option value="custome" {$intercept['custome']}>Custome URL</option> </select> <p>The click that causes a link to expire must be handled, we intercept it. You can choose how to do that here.</p> </div> <div style="display:$ciVisChk;"> <br> <h3>Custome Intercept Page</h3> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <p><label for="expiry_custom">Enter intercept URL here</label> <input type="text" size=40 id="expiry_custom" name="expiry_custom" value="$opt[1]" /></p> <p>Setting the above option without setting this will fall back to default behavior.</p> </div> </div> <br> <h3>Global Post-Expiry Option</h3> <div class="checkbox" style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <label> <input name="expiry_global_post_expire_chk" type="hidden" value="false" /> <input name="expiry_global_post_expire_chk" type="checkbox" value="true" $gpxChk $unique </label> <p>Instead of being deleted form the database, expiry short links can be edited to a new url when they expire. You can set a global value for this here.</p> <p>An alternative way to acheive this might be to use the <a href="https://diegopeinador.blogspot.com/2013/04/fallback-url-simple-plugin-for-yourls.html" target="_blank">Fallbak-URL</a> plugin. Combined, there is a lot of flexibility.</p> </div> <div style="display:$gpxVisChk;"> <br> <h3>Global Post Expiry Destination URL</h3> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <p><label for="expiry_custom">Enter intercept URL here</label> <input type="text" size=40 id="expiry_custom" name="expiry_custom" value="$opt[1]" /></p> <p>Setting the above option without setting this will fall back to default behavior.</p> </div> </div> <br> <h3>Expose Expiry Tags</h3> <div class="checkbox" style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <label> <input name="expiry_expose" type="hidden" value="false" /> <input name="expiry_expose" type="checkbox" value="true" $expChk > Expose? </label> <p>If enabled, any links with an expiry set will be marked with an unobtrusive green highlight in the admin interface.</p> </div> <br> <h3>Expiry Table Handling</h3> <div class="checkbox" style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <label> <input name="expiry_table_drop" type="hidden" value="false" /> <input name="expiry_table_drop" type="checkbox" value="true" $tblChk > Drop it? </label> <p>If selected, the expiry data will be flushed if the plugin gets disabled. Leave unchecked to preserve this data.</p> </div> <input type="hidden" name="nonce" value="$nonce" /> <p><input type="submit" value="Submit" /></p> </form> </div> <div id="stat_tab_exp_list" class="tab"> <h3>Expiry URL List</h3> <h4>You can add an Expiry condition to a link that is already in the database</h4> HTML; expiry_list_mgr($nonce); echo <<<HTML </div> <div id="stat_tab_prune" class="tab"> <h3>Advanced: Database Maintenance </h3> <p>There are 3 settings for this operation</p> <ul> <li><strong>Expired</strong>: Locates all links that are beyond expiration conditions, processes them accordingly.</li> <li><strong>Scrub</strong>: Dumps all expiry data. URL's remain in the database, only expiry data is stripped.</li> <li><strong>Killall</strong>: <span style="color:red">Warning!</span> Ruthlessly expires any link with expiration conditions before thier time.</li> </ul> <form method="post"> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <select name="expiry_admin_prune_type" size="1" > <option value="lazyorblind" >Select One</option> <option value="expired" >Expired</option> <option value="scrub" >Scrub</option> <option value="killall">Killall</option> </select> <label> <input name="expiry_admin_prune_do" type="hidden" value="false" /> <input name="expiry_admin_prune_do" type="checkbox" value="true" > Do it? <p>Be sure that you have the correct option, and check the box.</p> </label> </div> <input type="hidden" name="nonce" value="$nonce" /> <p><input type="submit" value="Submit" /></p> <form method="post"> </div> <div id="stat_tab_api" class="tab"> <p>Expiry will accept both GET and POST requests at the normal YOURLS API end point in order to:</p> <ul> <li>Add expiration data to a new short url</li> <li>Add expiration data to an old short url</li> <li>Retrieve expiration data for a short url</li> <li>Prune the database according to expiration data</li> </ul> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <h3>Setting expiry data to a new short url</h3> <p>With the normal API request <code>action = "shorturl"</code>:</p> <p>For a <strong>click-count</strong> based expiry send:</p> <ul> <li><code>expiry = "click"</code></li> <ul> <li><code>count = NUMERIC_VALUE</code></li> </ul> </ul> <p>For a <strong>time</strong> based expiry send:</p> <ul> <li>expiry = "clock"</li> <ul> <li><code>age = NUMERIC_VALUE</code></li> <li><code>ageMod = (min, hr, day)</code></li> </ul> </ul> <p>If <code>count</code>, <code>age</code>, and <code>ageMod</code> values are not set, site default values will be used.</p> <p><strong>Optional</strong>: set a post-expiration fallback URL:</p> <ul> <li><code>postx = URL</code></li> </ul> </div> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <h3>Setting expiry data to an old short url</h3> <p>This action requires authenitcation. Along with auth data, and using the same parameters as above, send the following:</p> <ul> <li><code>action = "expiry"</code></li> <li><code>shorturl = URL</code></li> </ul> </div> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <h3>Retrieving expiry data for any short url</h3> <p>Send the new action:</p> <ul> <li><code>action = "expiry-stats"</code></li> <li><code>shorturl = URL</code></li> </ul> </div> <div style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue;"> <h3>Prune the database</h3> <p>These actions require authenitcation. Along with auth data, send one of the following:</p> <ul> <li><code>action = "prune"</code></li> <ul> <li><code>scope = "expired"</code></li> <li><code>scope = "scrub"</code></li> <li><code>scope = "killall"</code></li> </ul> </ul> <p>See the Prune tab for explanations of these functions</p> <h4>Cron example:</h3> <p>Use the following pre-formatted example to set up a daily cron to prune your databse of expired links:</p> <iframe src="data:text/html;charset=utf-8,$cronEG" width="100%" height="51"/></iframe> <p>Look here for more info on <a href="https://help.ubuntu.com/community/CronHowto" target="_blank" >cron</a> and <a href="https://www.gnu.org/software/wget/manual/html_node/HTTP-Options.html" target="_blank">wget</a>.</p> </div> </div> </div> </div> HTML; } // Display page 0.1 - the expiry list function expiry_list($nonce) { global $ydb; echo <<<HTML <form method="post"> <table id="expiry_table" border="1" cellpadding="5"> <thead> <tr> <th>Alias</th> <th>Expiry Type</th> <th>Clicks</th> <th>Timer</th> <th>Time Unit</th> <th>PostX Destination (optional)</th> <th> </th> </tr> </thead> <tbody> <tr> <td><input type="text" name="shorturl" id="shorturl" size="8" value=""></td> <td> <select name="expiry" id="expiry" size="1" > <option value="none" selected="selected" >Select One</option> <option value="click">Click Counts</option> <option value="clock">Timer</option> </select> </td> <td><input type="text" size="3" name="count" id="count" value="" disabled ></td> <td><input type="text" size="3" name="age" id="age" value="" disabled ></td> <td> <select name="ageMod" id="ageMod" size="1" disabled > <option value="">Select One</option> <option value="min">Minutes</option> <option value="hour">Hours</option> <option value="day" >Days</option> </select> </td> <td><input type="text" name="postx" id="postx" size="" disabled></td> <td colspan=3 align=right> <input type=submit name="submit" value="Submit"> <input type="hidden" name="nonce" value="$nonce" /> </td> </tr> HTML; // populate table rows with expiry data if there is any $table = YOURLS_DB_PREFIX . 'expiry'; $sql = "SELECT * FROM `$table` ORDER BY timestamp DESC"; $expiry_list = $ydb->fetchObjects($sql); if($expiry_list) { foreach( $expiry_list as $expiry ) { $base = YOURLS_SITE; $kword = $expiry->keyword; $type = $expiry->type; $postx = $expiry->postexpire; $death = null; $click = null; if( $type == 'clock' ) { $fresh = $expiry->timestamp; $stale = $expiry->shelflife; $death = ($stale - (time() - $fresh)); $death = expiry_age_mod_reverse($death); } if( $type == 'click' ) { $life = $expiry->click; $stats = yourls_get_keyword_stats( $kword ); $link = $stats['link']; $lived = $link['clicks']; $click = $life - $lived; } $remove = ''. $_SERVER['PHP_SELF'] .'?page=expiry&action=remove&key='. $kword .''; $strip = ''. $_SERVER['PHP_SELF'] .'?page=expiry&action=no_postx&key='. $kword .''; // print if there is any data echo <<<HTML <tr> <td>$kword</td> <td>$type</td> <td>$click</td> <td>$death</td> <td></td> <td>$postx</td> <td><a href="$remove">Remove Expiry <img src="$base/images/delete.png" title="UnExpire" border=0></a></td> <td><a href="$strip">Strip Postx <img src="$base/images/delete.png" title="UnPostExpiry" border=0></a></td> </tr> HTML; } } echo <<<HTML </tbody> </table> </form> <script> document.getElementById('expiry').addEventListener('change', function () { if (this.value == "click") { $('#count').prop('disabled', false); $('#age').prop('disabled', true); $('#ageMod').prop('disabled', true); $('#postx').prop('disabled', false); } if (this.value == "clock") { $('#count').prop('disabled', true); $('#age').prop('disabled', false); $('#ageMod').prop('disabled', false); $('#postx').prop('disabled', false); } }); function getExpiryCookie(name) { var nameEQ = name + "="; var ca = document.cookie.split(';'); for(var i=0;i < ca.length;i++) { var c = ca[i]; while (c.charAt(0)==' ') c = c.substring(1,c.length); if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); } return null; } var alias = getExpiryCookie('expiry'); if (alias != "") { document.getElementById('shorturl').value = alias; $(window).on("unload", function() { document.cookie = 'expiry'+'=; Max-Age=-99999999; SameSite=Strict;'; }); } </script> HTML; } // Change Admin page New URL submission form yourls_add_filter( 'shunt_html_addnew', function ( $shunt, $url, $keyword ) { $opt = expiry_config(); $e_p = $c_c = $t_t = 'none'; $gn = $gt = $gc = $aV = $aMn = $aMh = $aMm = $aMd = $cV = NULL; switch ( $opt[9] ) { case 'click': $e_p = $c_c = 'style'; $gc = 'selected="selected"'; $cV = $opt[8]; break; case 'clock': $e_p = $t_t = 'style'; $gt = 'selected="selected"'; $aV = $opt[6]; switch ( $opt[7] ) { case 'min': $aMm = 'selected="selected"'; break; case 'hour': $aMh = 'selected="selected"'; break; default: $aMd = 'selected="selected"'; } break; default: $gn = $aMn = 'selected="selected"'; } ?> <main role="main"> <div id="new_url"> <div> <form id="new_url_form" action="" method="get"> <div> <strong><?php yourls_e( 'Enter the URL' ); ?></strong>: <input type="text" id="add-url" name="url" value="<?php echo $url; ?>" class="text" size="80" placeholder="https://" /> <?php yourls_e( 'Optional '); ?> : <strong><?php yourls_e('Custom short URL'); ?></strong>:<input type="text" id="add-keyword" name="keyword" value="<?php echo $keyword; ?>" class="text" size="8" /> <?php yourls_nonce_field( 'add_url', 'nonce-add' ); ?> <input type="button" id="add-button" name="add-button" value="<?php yourls_e( 'Shorten The URL' ); ?>" class="button" onclick="add_link_expiry();" /> </br></br> <label for="expiry"><strong>Short Link Expiration Type</strong>:</label> <select name="expiry" id="expiry" data-role="slider" > Select One <option value="" <?php echo $gn; ?> >None</option> <option value="clock" <?php echo $gt; ?> >Timer</option> <option value="click" <?php echo $gc; ?> >Click Counter</option> </select> <div id="expiry_params" style="padding-left: 10pt;border-left:1px solid blue;border-bottom:1px solid blue; display:<?php echo $e_p; ?>;"> <div style="margin:auto;width:150px;text-align:left;" > <div id="tick_tock" style="display:<?php echo $t_t; ?>"> <input style="width:50px;" type="number" name="age" id="age" value="<?php echo $aV; ?>" min="0"> <select name="ageMod" id="ageMod" size="1" > <option value="" <?php echo $aMn; ?> >Select One</option> <option value="min" <?php echo $aMm; ?> >Minutes</option> <option value="hour"<?php echo $aMh; ?> >Hours</option> <option value="day" <?php echo $aMd; ?> >Days</option> </select> </div> <div id="clip_clop" style="display:<?php echo $c_c; ?>"> <input style="width:50px;" type="number" name="count" id="count" value="<?php echo $cV; ?>" min="0" > Click limit. </div> </div> <input type="text" id="postx" name="postx" class="text" size="40" placeholder="leave blank for none"/> <strong>Fallback URL</strong> </div> </div> </form> <div id="feedback" style="display:none"></div> </div> <?php yourls_do_action( 'html_addnew' ); ?> </div> <script> document.getElementById('expiry').addEventListener('change', function () { var style = this.value !== "" ? 'block' : 'none'; document.getElementById('expiry_params').style.display = style; var style = this.value == "clock" ? 'block' : 'none'; document.getElementById('tick_tock').style.display = style; var style = this.value == "click" ? 'block' : 'none'; document.getElementById('clip_clop').style.display = style; }); </script> <?php return $shunt = true; }); // Mark expiry links on admin page FIXME identify freshly added links yourls_add_filter( 'table_add_row', function ($row, $keyword, $url, $title, $ip, $clicks, $timestamp) { global $ydb; // Check if this is wanted $expiry_expose = yourls_get_option( 'expiry_expose' ); if($expiry_expose !== "false") { // If the keyword is set to expire, make the URL show in green; $table = YOURLS_DB_PREFIX . 'expiry'; $sql = "SELECT * FROM $table WHERE `keyword` = :keyword"; $binds = array('keyword' => $keyword); $expiry = $ydb->fetchOne($sql, $binds); if( $expiry ) { $old_key = '/td class="keyword"/'; $new_key = 'td class="keyword" style="border-right: 6px solid green;"'; $newrow = preg_replace($old_key, $new_key, $row); return $newrow; } else $newrow = $row; return $newrow; } else return $row; }); // Expiry data in Share box on admin page yourls_add_action('yourls_ajax_expiry-stats', function () { $shorturl = $_REQUEST['shorturl']; $return = expiry_check( array( "expiry_infos" , $shorturl ) ); echo json_encode($return); }); // Add a Expiry Button to the Admin interface yourls_add_filter( 'table_add_row_action_array', function ( $actions, $keyword ) { $list = YOURLS_SITE . "/admin/plugins.php?page=expiry#stat_tab_exp_list"; $id = yourls_string2htmlid( $keyword ); $expiry = array ( 'expiry' => array( 'href' => "$list", 'id' => "trlink-$id", 'title' => yourls_esc_attr__( 'Expiry' ), 'anchor' => yourls__( 'Add Expiry Data' ), 'onclick' => "setExpiryCookie( 'expiry' , '$keyword' );", ) ); $result = array_merge( $actions, $expiry ); ; return $result; }); yourls_add_filter( 'table_head_start', function ($start) { return '<div style="text-align:center; padding-top: 5px;"id="exp_result" class="text-success"></div>'."\n".$start; }); // Expiry data for info page stats tab yourls_add_action('pre_yourls_info_stats', function ($keyword) { $infos = expiry_check( array( "expiry_infos" , $keyword[0] ) ); echo "<strong>Expiry</strong>: " . $infos['simple']; }); /* * * Form submissions * * / // Options updater function expiry_update_ops() { if(isset( $_POST['expiry_global_expiry'])) { // Check nonce yourls_verify_nonce( 'expiry' ); yourls_update_option( 'expiry_global_expiry', $_POST['expiry_global_expiry'] ); if(isset( $_POST['expiry_default_click'] )) yourls_update_option( 'expiry_default_click', $_POST['expiry_default_click'] ); if(isset( $_POST['expiry_default_age'] )) yourls_update_option( 'expiry_default_age', $_POST['expiry_default_age'] ); if(isset( $_POST['expiry_default_age_mod'] )) yourls_update_option( 'expiry_default_age_mod', $_POST['expiry_default_age_mod'] ); if(isset( $_POST['expiry_intercept'] )) yourls_update_option( 'expiry_intercept', $_POST['expiry_intercept'] ); if(isset( $_POST['expiry_custom'] )) yourls_update_option( 'expiry_custom', $_POST['expiry_custom'] ); if(isset( $_POST['expiry_global_post_expire_chk'] )) yourls_update_option( 'expiry_global_post_expire_chk', $_POST['expiry_global_post_expire_chk'] ); if(isset( $_POST['expiry_global_post_expire'] )) yourls_update_option( 'expiry_global_post_expire', $_POST['expiry_global_post_expire'] ); if(isset( $_POST['expiry_expose'] )) yourls_update_option( 'expiry_expose', $_POST['expiry_expose'] ); if(isset( $_POST['expiry_table_drop'] )) yourls_update_option( 'expiry_table_drop', $_POST['expiry_table_drop'] ); } } // Epirly List Mgr function expiry_list_mgr($n) { // CHECK if UNSET form was submitted, handle expiry list if( isset( $_GET['action'] ) ) { global $ydb; // remove expiry data from a link (keeps link in YOURLS) if( $_GET['action'] == 'remove') { if( isset($_GET['key']) ) { $key = $_GET['key']; $table = YOURLS_DB_PREFIX . 'expiry'; $binds = array('key' => $key); $sql = "DELETE FROM `$table` WHERE `keyword` = :key"; $delete = $ydb->fetchAffected($sql, $binds); } // go to list expiry_list($n); } // remove fallback data from expiry (keeps expiration data) if( $_GET['action'] == 'no_postx') { if( isset($_GET['key']) ) { $key = $_GET['key']; $table = YOURLS_DB_PREFIX . 'expiry'; $binds = array('key' => $key); $sql = "UPDATE `$table` SET `postexpire` = 'none' WHERE `keyword` = :key"; $update = $ydb->fetchAffected($sql, $binds); } // go to list expiry_list($n); } } elseif( !empty($_POST) && isset( $_POST['shorturl'] ) && isset( $_POST['expiry'] ) ) { expiry_old_link(); expiry_list($n); } else { expiry_list($n); } } // Prune Form function expiry_flush() { if( isset( $_POST['expiry_admin_prune_do'] ) ) { if( $_POST['expiry_admin_prune_do'] == 'true' ) { // Check nonce yourls_verify_nonce( 'expiry' ); $type = $_POST['expiry_admin_prune_type']; expiry_db_flush( $type ); switch ($type) { case 'expired': echo '<font color="green">All expired links have beeen deleted from the system. Have a nice day.</font>'; break; case 'scrub': echo '<font color="green">All links are now non-perishable. Have a nice day.</font>'; break; case 'killall': echo '<font color="green">All links with expiration dates have been deleted. Have a nice day.</font>'; break; case 'lazyorblind'; echo '<font color="red">You submitted the form without selecting an option... try again.</font>'; break; default: echo '<font color="red">Something went wrong, check your database.</font>'; } } else { echo '<font color="red">You submitted the Prune without checking "Do it?"</font>'; } } } / * * Expiry Checking * * / // Hook on basic redirect yourls_add_action( 'redirect_shorturl', 'expiry_check' ); function expiry_check( $args ) { global $ydb; $keyword = str_replace( YOURLS_SITE . '/' , '', $args[1] ); // accept either 'http://ozh.in/abc' or 'abc' $keyword = yourls_sanitize_keyword( $keyword ); $table = YOURLS_DB_PREFIX . 'expiry'; $sql = "SELECT FROM $table WHERE `keyword` = :keyword"; $binds = array('keyword' => $keyword); $expiry = $ydb->fetchOne($sql, $binds); $result = false; if( $expiry ) { $expiry = (array)$expiry; if( $expiry['type'] == 'click' ) { $count = $expiry['click']; $stats = yourls_get_keyword_stats( $keyword ); $link = $stats['link']; $clicks = $link['clicks']; if ( $clicks >= $count ) $result = 'click-bomb'; $life = $count - $clicks; } elseif( $expiry['type'] == 'clock' ) { $fresh = $expiry['timestamp']; $stale = $expiry['shelflife']; if( ( time() - $fresh) >= $stale ) $result = 'time-bomb'; $death = ($stale - (time() - $fresh)); $life = expiry_age_mod_reverse($death); } $opt = expiry_config(); $gpx = $opt[5] == 'false' ? null : $opt[4]; $postx = (isset($expiry['postexpire']) ? $expiry['postexpire'] : $gpx); } else { $expiry['type'] = 'none'; $life = $postx = null; } if( $args[0] == "expiry_infos" ) return expiry_stats_response (array ( $result, $expiry['type'], $life, $postx ) ); if($result !== false) expiry_router($keyword, $result, $postx); } // expiry check ~ router function expiry_router($keyword, $result, $postx) { // try to edit maybe if ( $postx !== null && $postx !=='' && $postx !== 'none' && $postx !== 'false') { if( yourls_edit_link( $postx, $keyword, $keyword ) ) { $args[0] = $keyword; expiry_cleanup( $args ); if ( !yourls_is_API() && !defined('EXPIRY_CLI')) { yourls_redirect($postx, 302); die(); } } else { $postx = null; } } elseif( $postx == null \|\| $postx == '' \|\| $postx == 'none' ) { yourls_delete_link_by_keyword( $keyword ); if ( !yourls_is_API() && !defined('EXPIRY_CLI')) { $expiry_intercept = yourls_get_option( 'expiry_intercept' ); switch ($expiry_intercept) { case 'simple': yourls_die('This short URL has expired.', 'Link Expired', '403'); case 'template': expiry_display_expired($keyword, $result); case 'custom': $expiry_custom = yourls_get_option( 'expiry_custom' ); if ($expiry_custom !== 'none') { yourls_redirect( $expiry_custom, 302 ); die(); } else { yourls_die('This short URL has expired.', 'Link Expired', '403'); } default: yourls_die('This short URL has expired.', 'Link Expired', '403'); } } } } // expiry info response function expiry_stats_response( $infos ) { if( isset($infos[3]) && $infos[3] !=='' && $infos[3] !== 'none') { $postx_info = "This link will redirect to ".$infos[3]." after expiration."; $postx_data = $infos[3]; } else { $postx_info = null; $postx_data = 'none'; } if($infos[0] !== false) { return array( 'statusCode' => 200, 'expiry' => $infos[1], 'postx' => $postx_data, 'simple' => "This link is a ". $infos[0] .", it is beyond expiration. ".$postx_info, 'message' => "This link is a ". $infos[0] .", it is beyond expiration. ".$postx_info ); } else { switch ($infos[1]) { case 'none': return array( 'statusCode' => 200, 'expiry '=> 'none', 'simple' => "No expiry data set.", 'message' => "No expiry data set." ); break; case 'click': return array( 'statusCode' => 200, 'expiry' => 'click', 'countdown' => $infos[2], 'postx' => $postx_data, 'simple' => "Short URL has ".$infos[2]." clicks left. ".$postx_info, 'message' => "Short URL has ".$infos[2]." clicks left. ".$postx_info ); break; case 'clock': return array( 'statusCode' => 200, 'expiry_type'=> 'clock', 'countdown' => $infos[2], 'postx' => $postx_data, 'simple' => "Short URL will expire in ".$infos[2]." . ".$postx_info, 'message' => "Short URL will expire in ".$infos[2]." . ".$postx_info ); break; default: return array( 'statusCode' => 400, 'simple' => "Not able to retrieve expiry data, please check your configuraiton (call).", 'message' => "Not able to retrieve expiry data, please check your configuraiton (call)." ); break; } } } /* * * API * * / // Expire new links yourls_add_filter( 'add_new_link', function ( $return, $url , $keyword, $title ) { // this method tolelrates no error in short url creation if(isset ( $return['code'] ) ) { switch( $return['code'] ) { case 'error:url': $return['expiry'] = 'Error: use "action => expiry" to add expiration data to a pre-esxisting url. No expiry data set'; return $return; default: return $return; } } $opt = expiry_config(); $type = isset($_REQUEST['expiry']) ? $_REQUEST['expiry'] : $opt[9]; switch( $type ) { case 'click': // ex. "expiry=click" $click = (isset($_REQUEST['count']) ? $_REQUEST['count'] : $opt[8]); // ex. "count=50" if( !is_numeric( $click ) ){ $return['expiry'] = "'count' must be a valid number, no expiry set"; return $return; } $fresh = $stale = 'dummy'; $return['expiry'] = "$click click expiry set"; break; case 'clock': // ex. "expiry=clock" $age = (isset($_REQUEST['age']) ? $_REQUEST['age'] : $opt[6]); // ex. "age=3" if( !is_numeric( $age ) ) { $return['expiry'] = "'age' must be a valid number, no expiry set"; return $return; } $ageMod = (isset($_REQUEST['ageMod']) ? $_REQUEST['ageMod'] : $opt[7]); // ex. "ageMod=hour" if( !in_array( $ageMod, array( 'min', 'hour', 'day' ) ) ) { $return['expiry'] = "'ageMod' must be 'min', 'day', or 'hour', no expiry set"; return $return; } $fresh = time(); $stale = expiry_age_mod($age, $ageMod); $click = 'dummy'; $return['expiry'] = "$age $ageMod expiry set."; break; default: return $return; } $gpx = $opt[5] == 'false' ? null : $opt[4]; $postx = (isset($_REQUEST['postx']) ? $_REQUEST['postx'] : $gpx); // ex. "postx=https://example.com" if($postx !== null && $postx !== 'none') { $return['postx'] = $postx; if (!filter_var($postx, FILTER_VALIDATE_URL) ) { $return['postx'] = "invalid url, not set"; $postx = 'none'; } elseif(!yourls_is_allowed_protocol( $postx ) ){ $return['postx'] = "disallowed protocol, not set"; $postx = 'none'; } } // All set, put it in the database global $ydb; $table = YOURLS_DB_PREFIX . 'expiry'; $binds = array( 'keyword' => $keyword, 'type' => $type, 'click' => $click, 'fresh' => $fresh, 'stale' => $stale, 'postx' => $postx ); $sql = "REPLACE INTO $table (keyword, type, click, timestamp, shelflife, postexpire) VALUES (:keyword, :type, :click, :fresh, :stale, :postx)"; $insert = $ydb->fetchAffected($sql, $binds); return yourls_apply_filter( 'after_expiry_new_link', $return, $url, $keyword, $title ); }); // Expiry old links yourls_add_filter( 'api_action_expiry', 'expiry_old_link' ); function expiry_old_link() { $auth = yourls_is_valid_user(); if( $auth !== true ) { $format = ( isset($_REQUEST['format']) ? $_REQUEST['format'] : 'xml' ); $callback = ( isset($_REQUEST['callback']) ? $_REQUEST['callback'] : '' ); yourls_api_output( $format, array( 'simple' => $auth, 'message' => $auth, 'errorCode' => 403, 'callback' => $callback, ) ); } if( !isset( $_REQUEST['shorturl'] ) ) { return array( 'statusCode' => 400, 'simple' => "Need a 'shorturl' parameter", 'message' => 'error: missing shorturl param', ); } $shorturl = $_REQUEST['shorturl']; if( !yourls_is_shorturl( $shorturl ) ) { return array( 'statusCode' => 400, 'simple' => "Not a valid short url", 'message' => 'error: bad url', ); } $keyword = str_replace( YOURLS_SITE . '/' , '', $shorturl ); // accept either 'http://ozh.in/abc' or 'abc' $keyword = yourls_sanitize_keyword( $keyword ); $url = yourls_get_keyword_longurl( $keyword ); $title = yourls_get_keyword_title( $keyword ); $opt = expiry_config(); $type = isset($_REQUEST['expiry']) ? $_REQUEST['expiry'] : $opt[9]; switch( $type ) { case 'click': // ex. "expiry=click" $count = (isset($_REQUEST['count']) ? $_REQUEST['count'] : $opt[8]); // ex. "count=50" if( !is_numeric( $count ) ){ return array( 'statusCode' => 400, 'simple' => "'count' must be a valid number, no expiry set", 'message' => "error: 'count' must be a valid number", ); } $fresh = $stale = null; $return['expiry'] = "$count click expiry set"; $return['expiry_type'] = "click"; $return['expiry_life'] = "$count"; break; case 'clock': // ex. "expiry=clock" $age = (isset($_REQUEST['age']) ? $_REQUEST['age'] : $opt[6]); // ex. "age=3" if( !is_numeric( $age ) ) { return array( 'statusCode' => 400, 'simple' => "'age' must be a valid number, no expiry set", 'message' => "error: 'age' must be a valid number", ); } $ageMod = (isset($_REQUEST['ageMod']) ? $_REQUEST['ageMod'] : $opt[7]); // ex. "ageMod=hour" if( !in_array( $ageMod, array( 'min', 'hour', 'day' ) ) ) { return array( 'statusCode' => 400, 'simple' => "'ageMod' must be set to 'min', 'day', or 'hour', no expiry set", 'message' => "error: 'ageMod' must be set to 'min', 'day', or 'hour'", ); } $count = null; $fresh = time(); $stale = expiry_age_mod($age, $ageMod); $return['expiry'] = "$age $ageMod expiry set."; $return['expiry_type'] = "clock"; $return['expiry_life'] = "$stale"; // in seconds break; case 'none': return array( 'statusCode' => 400, 'simple' => "'expiry' must be set to 'click' or 'clock', no expiry set", 'message' => "error: 'expiry' must be set to 'click' or 'clock'", ); } $gpx = $opt[5] == 'false' ? null : $opt[4]; $postx = (isset($_REQUEST['postx']) ? $_REQUEST['postx'] : $gpx); // ex. "postx=https://example.com" if($postx !== null && $postx !== 'none') { $return['postx'] = $postx; if (!filter_var($postx, FILTER_VALIDATE_URL) ) { $return['postx'] = "error: invalid url, not set"; $postx = null; } elseif(!yourls_is_allowed_protocol( $postx ) ){ $return['postx'] = "error: disallowed protocol, not set"; $postx = null; } } $shorturl = YOURLS_SITE . '/' . $keyword; $return['statusCode'] = "200"; $return['message'] = "success: expiry set"; $return['shorturl'] = $shorturl; $return['url'] = $url; $return['title'] = $title; $return['simple'] = "Success: '$type' expiry set for $shorturl "; // All set, put it in the database global $ydb; $table = YOURLS_DB_PREFIX . 'expiry'; $binds = array( 'keyword' => $keyword, 'type' => $type, 'click' => $count, 'fresh' => $fresh, 'stale' => $stale, 'postx' => $postx ); $sql = "REPLACE INTO $table (keyword, type, click, timestamp, shelflife, postexpire) VALUES (:keyword, :type, :click, :fresh, :stale, :postx)"; $insert = $ydb->fetchAffected($sql, $binds); return yourls_apply_filter( 'after_expiry_old_link', $return, $url, $keyword, $title ); } // Check Shortlink expiry data yourls_add_filter( 'api_action_expiry-stats', function () { if( !isset( $_REQUEST['shorturl'] ) ) { return array( 'statusCode' => 400, 'simple' => "Need a 'shorturl' parameter", 'message' => 'error: missing shorturl param', ); } $r = $_REQUEST['shorturl']; if( !yourls_is_shorturl( $r ) ) { return array( 'statusCode' => 400, 'simple' => "Not a valid short url", 'message' => 'error: bad url', ); } $return = expiry_check( array( "expiry_infos" , $r ) ); return $return; }); // Prune away expired links yourls_add_filter( 'api_action_prune', function () { $auth = yourls_is_valid_user(); if( $auth !== true ) { $format = ( isset($_REQUEST['format']) ? $_REQUEST['format'] : 'xml' ); $callback = ( isset($_REQUEST['callback']) ? $_REQUEST['callback'] : '' ); yourls_api_output( $format, array( 'simple' => $auth, 'message' => $auth, 'errorCode' => 403, 'callback' => $callback, ) ); } // We need a scope for the prune if( !isset( $_REQUEST['scope'] ) ) { return array( 'statusCode' => 400, 'simple' => "Need a 'scope' parameter", 'message' => "error: missing 'scope' param", ); } // Scope must be in range if( !in_array( $_REQUEST['scope'], array( 'expired', 'scrub', 'killall' ) ) ) { return array( 'statusCode' => 400, 'simple' => "Error: 'scope' must be set to 'expired', 'scrub' or 'killall'", 'message' => "error: bad param value for 'scope'", ); } $type = $_REQUEST['scope']; switch( $type ) { case 'expired': if( expiry_db_flush( $type ) ) { return array( 'statusCode' => 200, 'simple' => "Expired links have been pruned", 'message' => 'success: pruned', ); } else { return array( 'statusCode' => 500, 'simple' => 'Error: could not prune expiry, not sure why :-/', 'message' => 'error: unknown error', ); } case 'scrub': if( expiry_db_flush( $type ) ) { return array( 'statusCode' => 200, 'simple' => "Expirations have been stripped from all links", 'message' => 'success: pruned', ); } else { return array( 'statusCode' => 500, 'simple' => 'Error: could not prune expiry, not sure why :-/', 'message' => 'error: unknown error', ); } case 'killall': if( expiry_db_flush( $type ) ) { return array( 'statusCode' => 200, 'simple' => "All perishable links have been pruned", 'message' => 'success: pruned', ); } else { return array( 'statusCode' => 500, 'simple' => 'Error: could not prune expiry, not sure why :-/', 'message' => 'error: unknown error', ); } } }); / * * Database * * / // temporary update DB script if (!defined( 'EXPIRY_DB_UPDATE' )) define( 'EXPIRY_DB_UPDATE', false ); if ( EXPIRY_DB_UPDATE ) yourls_add_action( 'plugins_loaded', 'expiry_update_DB' ); function expiry_update_DB () { yourls_delete_option('expiry_init'); global $ydb; $table = 'expiry'; if ( YOURLS_DB_PREFIX ) { try { $sql = "DESCRIBE `".YOURLS_DB_PREFIX . $table."`"; $fix = $ydb->fetchAffected($sql); } catch (PDOException $e) { $sql = "RENAME TABLE `".$table."` TO `".YOURLS_DB_PREFIX.$table."`"; $fix = $ydb->fetchAffected($sql); } $table = YOURLS_DB_PREFIX . $table; } try { $sql = "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = `".$table."` AND ENGINE = 'INNODB' LIMIT 1"; $fix = $ydb->fetchAffected($sql); } catch (PDOException $e) { $sql = "ALTER TABLE `".$table."` ENGINE = INNODB;"; $fix = $ydb->fetchAffected($sql); } } // Create tables for this plugin when activated yourls_add_action( 'activated_expiry/plugin.php', function () { global $ydb; // Create the expiry table $table = YOURLS_DB_PREFIX . 'expiry'; $table_expiry = "CREATE TABLE IF NOT EXISTS `".$table."` ("; $table_expiry .= "keyword varchar(200) NOT NULL, "; $table_expiry .= "type varchar(5) NOT NULL, "; $table_expiry .= "click varchar(5), "; $table_expiry .= "timestamp varchar(20), "; $table_expiry .= "shelflife varchar(20), "; $table_expiry .= "postexpire varchar(200), "; $table_expiry .= "PRIMARY KEY (keyword) "; $table_expiry .= ") ENGINE=InnoDB DEFAULT CHARSET=latin1;"; $tables = $ydb->fetchAffected($table_expiry); }); // Delete table when plugin is deactivated yourls_add_action('deactivated_expiry/plugin.php', function () { $expiry_table_drop = yourls_get_option('expiry_table_drop'); if ( $expiry_table_drop !== 'false' ) { global $ydb; $table = YOURLS_DB_PREFIX . 'expiry'; $sql = "DROP TABLE IF EXISTS $table"; $ydb->fetchAffected($sql); } }); // DB Flushing function expiry_db_flush( $type ) { global $ydb; $table = YOURLS_DB_PREFIX . 'expiry'; switch ( $type ) { // remove expiry data from all links & preserve the short url case 'scrub': $sql = "TRUNCATE TABLE $table"; $ydb->fetchAffected($sql); $result = true; break; // delete every short url that is set to expire case 'killall': // nuke $sql = "SELECT FROM `$table` ORDER BY timestamp DESC"; $expiry_list = $ydb->fetchObjects($sql); if($expiry_list) { foreach( $expiry_list as $expiry ) { $keyword = $expiry->keyword; yourls_delete_link_by_keyword( $keyword ); } } $result = true; break; case 'expired': // get rid of expired links that have not been triggered default: $sql = "SELECT * FROM `$table` ORDER BY timestamp DESC"; $expiry_list = $ydb->fetchObjects($sql); if($expiry_list) { foreach( $expiry_list as $expiry ) { $keyword = $expiry->keyword; $args = array("prune", $keyword); expiry_check($args); } } $result = true; break; } return $result; } // auto-delete expiry records yourls_add_action( 'delete_link', 'expiry_cleanup' ); // cleanup on keyword deletion function expiry_cleanup( $args ) { global $ydb; $keyword = $args[0]; // Keyword to delete // Delete the expiry data, no need for it anymore $table = YOURLS_DB_PREFIX . 'expiry'; $binds = array( 'keyword' => $keyword ); $sql = "DELETE FROM $table WHERE `keyword` = :keyword"; $ydb->fetchAffected($sql, $binds); } /* * * Helpers * * / // Get options and set defaults function expiry_config() { // Get values from DB $intercept = yourls_get_option( 'expiry_intercept' ); $int_cust = yourls_get_option( 'expiry_custom' ); $tbl_drop = yourls_get_option( 'expiry_table_drop' ); $expose = yourls_get_option( 'expiry_expose' ); $gpx = yourls_get_option( 'expiry_global_post_expire' ); $gpx_chk = yourls_get_option( 'expiry_global_post_expire_chk' ); $age = yourls_get_option( 'expiry_default_age' ); $ageMod = yourls_get_option( 'expiry_default_age_mod' ); $click = yourls_get_option( 'expiry_default_click' ); $global = yourls_get_option( 'expiry_global_expiry' ); // Set defaults if necessary if( $intercept == null ) $intercept = 'simple'; if( $int_cust == null ) $int_cust = 'none'; if( $tbl_drop == null ) $tbl_drop = 'false'; if( $expose == null ) $expose = 'true'; // if( $gpx == null ) $gpx = 'false'; if( $gpx_chk == null ) $gpx_chk = 'false'; if( $age == null ) $age = '3'; if( $ageMod == null ) $ageMod = 'day'; if( $click == null ) $click = '50'; if( $global == null ) $global = 'none'; if( YOURLS_UNIQUE_URLS == true) $gpx_chk = 'false'; return array( $intercept, // opt[0] $int_cust, // opt[1] $tbl_drop, // opt[2] $expose, // opt[3] $gpx, // opt[4] $gpx_chk, // opt[5] $age, // opt[6] $ageMod, // opt[7] $click, // opt[8] $global // opt[9] ); } // Adjust human readable time into seconds function expiry_age_mod($age, $ageMod) { switch ($ageMod) { case 'day': $age = $age 24 * 60 * 60; break; case 'hour': $age = $age * 60 * 60; break; case 'min': $age = $age * 60; break; default: $age = $age; } return $age; } // Adjust seconds into human readable time function expiry_age_mod_reverse($ss) { $s = $ss%60; $m = floor(($ss%3600)/60); $h = floor(($ss%86400)/3600); $d = floor($ss/86400) . "d "; if ($s < 10) $s = '0' . $s; if ($m < 10) $m = '0' . $m; if ($h < 10) $h = '0' . $h; if ($d == "0d ") $d = ""; return "$d$h"."h".$m.":"."$s"; } // intercept template function expiry_display_expired($keyword, $result) { $base = YOURLS_SITE; $img = yourls_plugin_url( dirname( __FILE__ ).'/assets/caution.png' ); $css = yourls_plugin_url( dirname( __FILE__ ).'/assets/bootstrap.min.css' ); $vars = array(); $vars['keyword'] = $keyword; $vars['result'] = $result; //TODO - put in intercept.php $vars['base'] = $base; $vars['img'] = $img; $vars['css'] = $css; $intercept = file_get_contents( dirname( __FILE__ ) . '/assets/intercept.php' ); // Replace all %stuff% in intercept.php with variable $stuff $intercept = preg_replace_callback( '/%([^%]+)?%/', function( $match ) use( $vars ) { return $vars[ $match[1] ]; }, $intercept ); echo $intercept; die(); }

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