341 lines
15 KiB
PHP
341 lines
15 KiB
PHP
<?php
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if (IN_serendipity !== true) {
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die ("Don't hack!");
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}
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@serendipity_plugin_api::load_language(dirname(__FILE__));
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class serendipity_event_trackback extends serendipity_event
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{
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var $title = PLUGIN_EVENT_MTRACKBACK_TITLETITLE;
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var $cache = array();
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function introspect(&$propbag)
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{
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global $serendipity;
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$propbag->add('name', PLUGIN_EVENT_MTRACKBACK_TITLETITLE);
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$propbag->add('description', PLUGIN_EVENT_MTRACKBACK_TITLEDESC);
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$propbag->add('stackable', false);
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$propbag->add('author', 'Garvin Hicking, Malte Paskuda, Ian');
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$propbag->add('version', '1.20.1');
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$propbag->add('requirements', array(
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'serendipity' => '1.6',
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'smarty' => '2.6.7',
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'php' => '4.1.0'
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));
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$propbag->add('event_hooks', array(
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'backend_display' => true,
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'backend_trackbacks' => true,
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'backend_trackback_check' => true,
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'backend_http_request' => true,
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'genpage' => true,
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'backend_publish' => true,
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'backend_save' => true
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));
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$propbag->add('configuration', array('disable_trackall', 'trackown', 'delayed_trackbacks', 'host', 'port', 'user', 'password'));
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$propbag->add('groups', array('BACKEND_EDITOR'));
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}
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function introspect_config_item($name, &$propbag)
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{
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switch($name) {
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case 'trackown':
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$propbag->add('type', 'boolean');
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$propbag->add('name', PLUGIN_EVENT_MTRACKBACK_TITLETRACKOWN);
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$propbag->add('default', 'true');
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break;
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case 'disable_trackall':
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$propbag->add('type', 'boolean');
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$propbag->add('name', PLUGIN_EVENT_MTRACKBACK_TITLETRACKALL);
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$propbag->add('default', 'false');
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break;
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case 'delayed_trackbacks':
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$propbag->add('type', 'boolean');
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$propbag->add('name', PLUGIN_EVENT_MTRACKBACK_DELAYED_TRACKBACKS_NAME);
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$propbag->add('description', PLUGIN_EVENT_MTRACKBACK_DELAYED_TRACKBACKS_DESC);
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$propbag->add('default', 'true');
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break;
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case 'host':
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$propbag->add('type', 'string');
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$propbag->add('name', 'Proxy Host');
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$propbag->add('default', '');
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break;
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case 'port':
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$propbag->add('type', 'string');
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$propbag->add('name', 'Proxy Port');
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$propbag->add('default', '');
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break;
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case 'user':
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$propbag->add('type', 'string');
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$propbag->add('name', 'Proxy User');
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$propbag->add('default', '');
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break;
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case 'password':
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$propbag->add('type', 'string');
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$propbag->add('name', 'Proxy Password');
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$propbag->add('default', '');
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break;
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default:
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return false;
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}
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return true;
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}
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function generate_content(&$title)
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{
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$title = PLUGIN_EVENT_MTRACKBACK_TITLETITLE;
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}
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function install()
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{
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$this->setupDB();
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}
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function event_hook($event, &$bag, &$eventData, $addData = null)
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{
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global $serendipity;
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$hooks = &$bag->get('event_hooks');
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if (isset($hooks[$event])) {
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switch($event) {
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case 'backend_http_request':
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// Setup a Proxy?
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$host = $this->get_config('host');
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if (!empty($host)) {
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$eventData['proxy_host'] = $host;
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$eventData['proxy_port'] = $this->get_config('port');
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$eventData['proxy_user'] = $this->get_config('user');
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$eventData['proxy_pass'] = $this->get_config('password');
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}
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break;
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case 'backend_trackbacks':
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if (!isset($serendipity['POST']['enable_trackback']) &&
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serendipity_db_bool($this->get_config('disable_trackall', 'false'))) {
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$serendipity['noautodiscovery'] = true;
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} elseif (($serendipity['POST']['enable_trackback'] ?? null) == 'off') {
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$serendipity['noautodiscovery'] = true;
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} else {
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if (($serendipity['POST']['enable_trackback'] ?? null) == 'selective') {
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// Clear TB URLs from the entry, start afresh from the textarea input.
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$eventData = array();
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}
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if (isset($serendipity['POST']['additional_trackbacks']) &&
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!empty($serendipity['POST']['additional_trackbacks'])) {
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$trackbackURLs = preg_split('@[ \s]+@', trim($serendipity['POST']['additional_trackbacks']));
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foreach($trackbackURLs AS $trackbackURL) {
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$trackbackURL = trim($trackbackURL);
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if (!in_array($trackbackURL, $eventData)) {
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$eventData[] = $trackbackURL;
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$this->cache[$trackbackURL] = 'plugin';
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}
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}
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}
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// Shall URLs be removed that point to your own blog?
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if (!serendipity_db_bool($this->get_config('trackown', 'true'))) {
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foreach($eventData as $idx => $url) {
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if (preg_match('@' . preg_quote($serendipity['baseURL'], '@') . '@i', $url)) {
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unset($eventData[$idx]);
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}
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}
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}
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}
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break;
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case 'backend_trackback_check':
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$checklock = '';
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if (isset($this->cache[$addData])) {
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$eventData[2] = $addData;
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$eventData['skipValidate'] = true;
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}
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break;
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case 'backend_display':
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$trackbackURLs = array();
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if (isset($eventData['id']) && $eventData['id'] > 0) {
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$urls = serendipity_db_query("SELECT link FROM {$serendipity['dbPrefix']}references WHERE entry_id = '". (int)$eventData['id'] ."'");
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if (is_array($urls)) {
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foreach($urls AS $row) {
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$trackbackURLs[] = (function_exists('serendipity_specialchars') ? serendipity_specialchars($row['link']) : htmlspecialchars($row['link'], ENT_COMPAT, LANG_CHARSET));
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}
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}
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}
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if (isset($serendipity['POST']['additional_trackbacks'])) {
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$additional_urls = preg_split('@[ \s]+@', trim($serendipity['POST']['additional_trackbacks']));
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foreach($additional_urls AS $additional_url) {
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$additional_url = trim($additional_url);
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if (!in_array($additional_url, $trackbackURLs)) {
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$trackbackURLs[] = (function_exists('serendipity_specialchars') ? serendipity_specialchars($additional_url) : htmlspecialchars($additional_url, ENT_COMPAT, LANG_CHARSET));
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}
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}
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}
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if (!isset($serendipity['POST']['enable_trackback'])) {
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if (serendipity_db_bool($this->get_config('disable_trackall', 'false'))) {
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$serendipity['POST']['enable_trackback'] = 'off';
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} else {
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$serendipity['POST']['enable_trackback'] = 'on';
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}
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}
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?>
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<fieldset style="margin: 5px">
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<legend><?php echo PLUGIN_EVENT_MTRACKBACK_TITLETITLE; ?></legend>
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<input class="input_radio" type="radio" id="checkbox_enable_trackback_1" <?php echo ($serendipity['POST']['enable_trackback'] == 'on' ? 'checked="checked"' : ''); ?> name="serendipity[enable_trackback]" value="on" /><label for="checkbox_enable_trackback_1"><?php echo ACTIVATE_AUTODISCOVERY; ?></label><br />
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<input class="input_radio" type="radio" id="checkbox_enable_trackback_2" <?php echo ($serendipity['POST']['enable_trackback'] == 'off' ? 'checked="checked"' : ''); ?> name="serendipity[enable_trackback]" value="off" /><label for="checkbox_enable_trackback_2"><?php echo PLUGIN_EVENT_MTRACKBACK_TITLETRACKALL; ?></label><br />
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<input class="input_radio" type="radio" id="checkbox_enable_trackback_3" <?php echo ($serendipity['POST']['enable_trackback'] == 'selective' ? 'checked="checked"' : ''); ?> name="serendipity[enable_trackback]" value="selective" /><label for="checkbox_enable_trackback_3"><?php echo PLUGIN_EVENT_MTRACKBACK_TITLETRACKSEL; ?></label><br />
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<br />
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<label for="input_additional_trackbacks"><?php echo PLUGIN_EVENT_MTRACKBACK_TITLEADDITIONAL; ?></label><br />
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<textarea rows="5" cols="50" id="input_additional_trackbacks" name="serendipity[additional_trackbacks]"><?php echo trim(implode("\n", $trackbackURLs)); ?></textarea>
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</fieldset>
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<?php
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break;
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case 'backend_save':
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case 'backend_publish':
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if (!serendipity_db_bool($eventData['isdraft'])
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&&
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$eventData['timestamp'] >= serendipity_serverOffsetHour()
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&&
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serendipity_db_bool($this->get_config('delayed_trackbacks', 'true'))
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) {
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#trackbacks couldn't get generated, so store this entry
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$this->delay($eventData['id'], $eventData['timestamp']);
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}
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break;
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case 'genpage':
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#don't check on every page
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$try = mt_rand(1, 10);
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if ($try == 1 && serendipity_db_bool($this->get_config('delayed_trackbacks', 'true'))) {
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$this->generateDelayed();
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}
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break;
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default:
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return false;
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}
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return true;
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} else {
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return false;
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}
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}
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#store id of an entry and wanted release-timestamp
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function delay($id, $timestamp)
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{
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global $serendipity;
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$this->upgradeCheck();
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$this->removeDelayed($id);
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$sql = "INSERT INTO
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{$serendipity['dbPrefix']}delayed_trackbacks (id, timestamp)
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VALUES
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({$id}, {$timestamp})";
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serendipity_db_query($sql);
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}
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#generate trackbacks for entries which now are shown
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function generateDelayed()
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{
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global $serendipity;
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$this->upgradeCheck();
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$sql = "SELECT id, timestamp
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FROM
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{$serendipity['dbPrefix']}delayed_trackbacks";
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$entries = serendipity_db_query($sql);
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if (is_array($entries) && !empty($entries)) {
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foreach ($entries as $entry) {
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if ($entry['timestamp'] <= serendipity_serverOffsetHour()) {
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include_once S9Y_INCLUDE_PATH . 'include/functions_trackbacks.inc.php';
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$stored_entry = serendipity_fetchEntry('id', $entry['id'], 1, 1);
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if ($stored_entry == false) {
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// The entry must have been deleted
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$this->removeDelayed($entry['id']);
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}
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if (isset($_SESSION['serendipityRightPublish'])) {
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$oldPublighRights = $_SESSION['serendipityRightPublish'];
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} else {
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$oldPublighRights = 'unset';
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}
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$_SESSION['serendipityRightPublish'] = true;
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#remove unnatural entry-data which let the update fail
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if (isset($stored_entry['loginname'])) {
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unset($stored_entry['loginname']);
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}
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if (isset($stored_entry['email'])) {
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unset($stored_entry['email']);
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}
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# Convert fetched categories to storable categories.
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$current_cat = $stored_entry['categories'];
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$stored_entry['categories'] = array();
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foreach($current_cat AS $categoryidx => $category_data) {
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$stored_entry['categories'][$category_data['categoryid']] = $category_data['categoryid'];
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}
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ob_start();
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serendipity_updertEntry($stored_entry);
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ob_end_clean();
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if ($oldPublighRights == 'unset') {
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unset($_SESSION['serendipityRightPublish']);
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} else {
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$_SESSION['serendipityRightPublish'] = $oldPublighRights;
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}
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# the trackbacks are now generated
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$this->removeDelayed($entry['id']);
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}
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}
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}
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}
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#remove delayed entry from further use
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function removeDelayed($id)
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{
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global $serendipity;
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$sql = "DELETE FROM {$serendipity['dbPrefix']}delayed_trackbacks
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WHERE id={$id}";
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serendipity_db_query($sql);
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}
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function setupDB()
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{
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global $serendipity;
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$sql = "CREATE TABLE IF NOT EXISTS {$serendipity['dbPrefix']}delayed_trackbacks (
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id int(11) NOT NULL {PRIMARY},
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timestamp int(10) {UNSIGNED}
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)";
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serendipity_db_schema_import($sql);
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}
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function upgradeCheck()
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{
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$db_upgrade = $this->get_config('db_upgrade', '');
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if ($db_upgrade != 3) {
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$this->setupDB();
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$this->set_config('db_upgrade', 3);
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}
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}
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}
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/* vim: set sts=4 ts=4 expandtab : */
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?>
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