332 lines
11 KiB
PHP
332 lines
11 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_textlinkads extends serendipity_event
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{
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var $title = PLUGIN_EVENT_TEXTLINKADS_TITLE;
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function introspect(&$propbag) {
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global $serendipity;
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$propbag->add('name', PLUGIN_EVENT_TEXTLINKADS_TITLE);
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$propbag->add('description', PLUGIN_EVENT_TEXTLINKADS_DESC);
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$propbag->add('stackable', true);
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$propbag->add('author', 'Garvin Hicking');
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$propbag->add('requirements', array(
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'serendipity' => '0.8',
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'smarty' => '2.6.7',
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'php' => '4.1.0'
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));
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$propbag->add('groups', array('FRONTEND_EXTERNAL_SERVICES'));
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$propbag->add('version', '0.13.1');
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$propbag->add('configuration', array('htmlid', 'xmlfilename'));
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$propbag->add('event_hooks', array(
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'css' => true,
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'external_service_tla' => true,
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'external_service_ad' => true
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));
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$propbag->add('legal', array(
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'services' => array(
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'text-link-ads.com' => array(
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'url' => 'https://www.text-link-ads.com',
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'desc' => 'Receives text link ads.'
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),
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),
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'frontend' => array(
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'',
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),
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'backend' => array(
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),
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'cookies' => array(
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),
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'stores_user_input' => true,
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'stores_ip' => false,
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'uses_ip' => true,
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'transmits_user_input' => true
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));
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}
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function example() {
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return PLUGIN_EVENT_TEXTLINKADS_INFO;
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}
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function introspect_config_item($name, &$propbag) {
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switch($name) {
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case 'htmlid':
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$propbag->add('type', 'string');
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$propbag->add('name', PLUGIN_EVENT_TEXTLINKADS_HTMLID);
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$propbag->add('description', '');
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$propbag->add('default', 'textlinkad1');
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break;
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case 'xmlfilename':
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$propbag->add('type', 'string');
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$propbag->add('name', PLUGIN_EVENT_TEXTLINKADS_XMLFILENAME);
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$propbag->add('description', '');
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$propbag->add('default', 'local_0815.xml');
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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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/* BEGIN FOREIGN CODE */
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function tla_ads() {
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global $serendipity;
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// Number of seconds before connection to XML times out
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// (This can be left the way it is)
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$CONNECTION_TIMEOUT = 10;
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// Local file to store XML
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// This file MUST be writable by web server
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// You should create a blank file and CHMOD it to 666
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$LOCAL_XML_FILENAME = $serendipity['serendipityPath'] . $this->get_config('xmlfilename');
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if (!file_exists($LOCAL_XML_FILENAME)) {
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echo "Text Link Ads script error: $LOCAL_XML_FILENAME does not exist. Please create a blank file named $LOCAL_XML_FILENAME.";
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return false;
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}
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if (!is_writable($LOCAL_XML_FILENAME)) {
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echo "Text Link Ads script error: $LOCAL_XML_FILENAME is not writable. Please set write permissions on $LOCAL_XML_FILENAME.";
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return false;
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}
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if (filemtime($LOCAL_XML_FILENAME) < (time() - 3600) || filesize($LOCAL_XML_FILENAME) < 20) {
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$request_uri = '';
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$user_agent = '';
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$this->tla_updateLocalXML("http://www.text-link-ads.com/xml.php?inventory_key=0FPDC7VH5JLP3YAN8K1M&referer=" . urlencode($request_uri) . "&user_agent=" . urlencode($user_agent), $LOCAL_XML_FILENAME, $CONNECTION_TIMEOUT);
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}
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$xml = $this->tla_getLocalXML($LOCAL_XML_FILENAME);
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$arr_xml = $this->tla_decodeXML($xml);
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if (!is_array($arr_xml)) {
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return false;
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}
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echo "\n<ul id=\"" . $this->get_config('htmlid') . "\">\n";
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for ($i = 0, $maxi = count($arr_xml['URL']); $i < $maxi; $i++) {
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echo "<li><span>" . $arr_xml['BeforeText'][$i] . " <a href=\"".$arr_xml['URL'][$i]."\">" . $arr_xml['Text'][$i] . "</a> "
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. $arr_xml['AfterText'][$i] . "</span></li>\n";
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}
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echo "</ul>";
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}
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function tla_updateLocalXML($url, $file, $time_out) {
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if ($handle = fopen($file, "a")) {
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fwrite($handle, "\n");
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fclose($handle);
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}
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if ($xml = $this->file_get_contents_tla($url, $time_out)) {
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$xml = substr($xml, strpos($xml, '<?'));
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if ($handle = fopen($file, "w")) {
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fwrite($handle, $xml);
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fclose($handle);
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}
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}
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}
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function tla_getLocalXML($file) {
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$contents = "";
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if ($handle = fopen($file, "r")){
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$contents = fread($handle, filesize($file)+1);
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fclose($handle);
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}
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return $contents;
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}
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function file_get_contents_tla($url, $time_out) {
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$result = "";
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$url = parse_url($url);
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if ($handle = @fsockopen ($url["host"], 80)) {
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if (function_exists("socket_set_timeout")) {
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socket_set_timeout($handle,$time_out,0);
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} else if(function_exists("stream_set_timeout")) {
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stream_set_timeout($handle,$time_out,0);
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}
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fwrite ($handle, "GET $url[path]?$url[query] HTTP/1.0\r\nHost: $url[host]\r\nConnection: Close\r\n\r\n");
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while (!feof($handle)) {
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$result .= @fread($handle, 40960);
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}
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fclose($handle);
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}
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return $result;
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}
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function html_entity_decode($string) {
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if (function_exists('html_entity_decode')) {
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return html_entity_decode($string, ENT_COMPAT, LANG_CHARSET);
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}
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// replace numeric entities
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$string = preg_replace('~&#x([0-9a-f]+);~ei', 'chr(hexdec("\1"))', $string);
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$string = preg_replace('~&#([0-9]+);~e', 'chr(\1)', $string);
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// replace literal entities
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$trans_tbl = get_html_translation_table(HTML_ENTITIES);
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$trans_tbl = array_flip($trans_tbl);
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return strtr($string, $trans_tbl);
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}
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function tla_decodeXML($xmlstg) {
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$out = "";
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$retarr = "";
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preg_match_all ("/<(.*?)>(.*?)</", $xmlstg, $out, PREG_SET_ORDER);
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$search_ar = array('<', '>', '"');
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$replace_ar = array('<', '>', '"');
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$n = 0;
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while (isset($out[$n])) {
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$retarr[$out[$n][1]][] = str_replace($search_ar, $replace_ar, $this->html_entity_decode(strip_tags($out[$n][0]), ENT_COMPAT, LANG_CHARSET));
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$n++;
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}
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return $retarr;
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}
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/* END FOREIGN CODE */
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function generate_content(&$title) {
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$title = $this->title;
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}
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function textlink_custom(&$data) {
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global $serendipity;
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$config = explode(':', $data);
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$params['dir'] = $config[0];
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$params['frequency'] = $config[1];
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if (!isset($params['dir'])) {
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echo __FUNCTION__ .": missing 'dir' parameter";
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return;
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}
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if (!isset($params['frequency'])) {
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$params['frequency'] = 'per-call';
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}
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$basedir = dirname(__FILE__) . '/';
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if (!is_dir($basedir . $params['dir'])) {
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echo __FUNCTION__ .": dir '{$basedir}" . (function_exists('serendipity_specialchars') ? serendipity_specialchars($params['dir']) : htmlspecialchars($params['dir'], ENT_COMPAT, LANG_CHARSET)) . " does not exist";
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return;
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}
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$last = $this->get_config('last_' . $data);
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if (empty($last)) {
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$last = 1;
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}
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$use_cache = false;
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$now = time();
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switch($params['frequency']) {
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case 'per-call':
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break;
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case 'weekly':
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if ($last > ($now - 86400*7)) {
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$use_cache = true;
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}
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break;
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case 'daily':
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if ($last > ($now - 86400)) {
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$use_cache = true;
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}
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break;
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case 'hourly':
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if ($last > ($now - 3600)) {
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$use_cache = true;
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}
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break;
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case 'half-hour':
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if ($last > ($now - 1800)) {
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$use_cache = true;
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}
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break;
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}
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if ($use_cache) {
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echo "<!--Cached: Last $last, Now $now-->" . $this->get_config('ad_' . $data);
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return;
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}
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$dh = opendir($basedir . $params['dir']);
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$stack = array();
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while (false !== ($file = readdir($dh))) {
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if ($file[0] == '.') continue;
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if (!preg_match('@\.html?$@', $file)) continue;
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$stack[] = $file;
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}
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$randomkey = array_rand($stack, 1);
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$file = $stack[$randomkey];
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$out = file_get_contents($basedir . $params['dir'] . '/' . $file);
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echo "<!--Stored {$params['frequency']}: Last $last, Now $now-->$out";
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$this->set_config('ad_' . $data, $out);
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$this->set_config('last_' . $data, $now);
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return;
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}
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function event_hook($event, &$bag, &$eventData, $addData = null) {
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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 'external_service_ad':
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$this->textlink_custom($eventData);
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break;
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case 'css':
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$id = $this->get_config('htmlid');
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?>
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ul#<?php echo $id; ?> { width: 100%; list-style: none; overflow: hidden; margin: 0px; padding: 0px; border: 1px solid #000000; border-spacing: 0px; background-color: #F0F0F0; }
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ul#<?php echo $id; ?> li { display: inline; float: left; clear: none; width: 100%; padding: 0px; margin: 0px; }
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ul#<?php echo $id; ?> li span { display: block; width: 100%; padding: 3px; margin: 0px; font-size: 12px; color: #000000; }
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ul#<?php echo $id; ?> li span a { font-size: 12px; color: #0000FF; }
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<?php
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return true;
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break;
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case 'external_service_tla':
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$this->tla_ads();
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return true;
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break;
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default:
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return false;
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break;
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}
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} else {
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return false;
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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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