コード例 #1
0
ファイル: links.php プロジェクト: rair/yacs
 /**
  * duplicate all links for a given anchor
  *
  * This function duplicates records in the database, and changes anchors
  * to attach new records as per second parameter.
  *
  * @param string the source anchor
  * @param string the target anchor
  * @return int the number of duplicated records
  *
  * @see shared/anchors.php
  */
 public static function duplicate_for_anchor($anchor_from, $anchor_to)
 {
     global $context;
     // look for records attached to this anchor
     $count = 0;
     $query = "SELECT * FROM " . SQL::table_name('links') . " WHERE anchor LIKE '" . SQL::escape($anchor_from) . "'";
     if (($result = SQL::query($query)) && SQL::count($result)) {
         // process all matching records one at a time
         while ($item = SQL::fetch($result)) {
             // a new id will be allocated
             $old_id = $item['id'];
             unset($item['id']);
             // target anchor
             $item['anchor'] = $anchor_to;
             // actual duplication
             if ($item['id'] = Links::post($item)) {
                 // duplicate elements related to this item
                 Anchors::duplicate_related_to('link:' . $old_id, 'link:' . $item['id']);
                 // stats
                 $count++;
             }
         }
     }
     // number of duplicated records
     return $count;
 }
コード例 #2
0
ファイル: edit.php プロジェクト: rair/yacs
     $_REQUEST['link_url'] = preg_replace($from, $to, $_REQUEST['link_url']);
 }
 // an anchor is mandatory
 if (!is_object($anchor)) {
     Logger::error(i18n::s('No anchor has been found.'));
     $item = $_REQUEST;
     $with_form = TRUE;
     // stop robots
 } elseif (Surfer::may_be_a_robot()) {
     Logger::error(i18n::s('Please prove you are not a robot.'));
     $item = $_REQUEST;
     $with_form = TRUE;
     // reward the poster for new posts
 } elseif (!isset($item['id'])) {
     // display the form on error
     if (!($_REQUEST['id'] = Links::post($_REQUEST))) {
         $item = $_REQUEST;
         $with_form = TRUE;
         // follow-up
     } else {
         // touch the related anchor
         $anchor->touch('link:create', $_REQUEST['id'], isset($_REQUEST['silent']) && $_REQUEST['silent'] == 'Y');
         // clear cache
         Links::clear($_REQUEST);
         // increment the post counter of the surfer
         Users::increment_posts(Surfer::get_id());
         // thanks
         $context['page_title'] = i18n::s('Thank you for your contribution');
         // the action
         $context['text'] .= '<p>' . i18n::s('The link has been successfully recorded.') . '</p>';
         // list persons that have been notified
コード例 #3
0
ファイル: ping.php プロジェクト: rair/yacs
                 $fields['title'] = $matches[1];
             } elseif (preg_match("/<title>(.*)<\\/title>/i", $content, $matches)) {
                 $fields['title'] = $matches[1];
             }
             // try to extract some text around the link
             $extract = strip_tags(substr($content, max(0, $position - 70), 210), '<a><b><i>');
             if (preg_match('/[^<]*>(.*)$/', $extract, $matches)) {
                 $extract = $matches[1];
             }
             if ($extract) {
                 $fields['description'] = '...' . $extract . '...';
             }
             // save in the database
             $fields['anchor'] = $anchor;
             $fields['link_url'] = $source;
             if (!($fields['id'] = Links::post($fields))) {
                 $response = 0;
             } else {
                 $response = 'Thanks for the ping';
                 Links::clear($fields);
             }
         }
     }
     break;
     // ping an external reference to some page on this site
 // ping an external reference to some page on this site
 case 'weblogUpdates.ping':
     list($label, $url) = $parameters['params'];
     // caller has been banned
     if ($_SERVER['REMOTE_HOST'] && ($server = Servers::get($_SERVER['REMOTE_HOST']) && $server['process_ping'] != 'Y')) {
         $response = array('flerror' => 49, 'message' => 'Access denied');
コード例 #4
0
ファイル: feeds.php プロジェクト: rair/yacs
 /**
  * get news from remote servers
  *
  * This function queries remote sources and populate the table of links based on fetched news.
  *
  * On tick, the including hook calls [code]Feeds::tick_hook()[/code].
  * See [script]control/scan.php[/script] for a more complete description of hooks.
  *
  * The function browses the database to locate servers acting as feeders, and read the URLs to use.
  *
  * A round-robin algorithm is implemented, meaning that servers are polled in sequence throughout successive ticks.
  * At most 1 feed is parsed on each tick, to limit impact when the "poor-man" cron mechanism is used,
  * which is the default setting.
  *
  * XML feeds are fetched and parsed according to their type.
  * At the moment YACS is able to process RSS and slashdot feeds.
  * Link records are created or updated in the database saving as much of possible of provided data.
  * Item data is reflected in Link, Title, and Description fields.
  * Channel	data is used to populate the Source field.
  * Stamping information is based on feeding date, and channel title.
  * Also, the edit action 'link:feed' marks links that are collected from feeders.
  * The anchor field is set to the category assigned in the server profile.
  *
  * At the end of the feeding process, the database is purged from oldest links according to the limit
  * defined in parameters/feeds.include.php, set through feeds/configure.php.
  * See Links::purge_old_news().
  *
  * @param boolean if set to true, fetch news on each call; else use normal period of time
  * @return a string to be displayed in resulting page, if any
  *
  * @see control/scan.php
  * @see feeds/configure.php
  */
 public static function tick_hook($forced = FALSE)
 {
     global $context;
     // load librairies only once
     include_once $context['path_to_root'] . 'links/links.php';
     include_once $context['path_to_root'] . 'servers/servers.php';
     include_once $context['path_to_root'] . 'shared/values.php';
     // feeds.tick
     // get feeding parameters
     Safe::load('parameters/feeds.include.php');
     // delay between feeds - minimum is 5 minutes
     if (!isset($context['minutes_between_feeds']) || $context['minutes_between_feeds'] < 5) {
         $context['minutes_between_feeds'] = 5;
     }
     // do not wait for the end of a feeding cycle
     if ($forced) {
         $threshold = gmstrftime('%Y-%m-%d %H:%M:%S');
     } else {
         $threshold = gmstrftime('%Y-%m-%d %H:%M:%S', time() - $context['minutes_between_feeds'] * 60);
     }
     // get a batch of feeders
     if (!($feeders = Servers::list_for_feed(0, 1, 'feed'))) {
         return 'feeds/feeds.php: no feed has been defined' . BR;
     }
     // remember start time
     $start_time = get_micro_time();
     // list banned tokens
     $banned_pattern = Servers::get_banned_pattern();
     // browse each feed
     $count = 0;
     foreach ($feeders as $server_id => $attributes) {
         // get specific feed parameters
         list($feed_url, $feed_title, $anchor, $stamp) = $attributes;
         // skip servers processed recently
         if ($stamp > $threshold) {
             continue;
         }
         // flag this record to enable round-robin even on error
         Servers::stamp($server_id);
         // fetch news from the provided link
         if (!($news = Feeds::get_remote_news_from($feed_url)) || !is_array($news)) {
             continue;
         }
         // no anchor has been defined for this feed
         if (!$anchor) {
             // create a default section if necessary
             if (!($anchor = Sections::lookup('external_news'))) {
                 $fields = array();
                 $fields['nick_name'] = 'external_news';
                 $fields['create_date'] = gmstrftime('%Y-%m-%d %H:%M:%S', time());
                 $fields['edit_date'] = gmstrftime('%Y-%m-%d %H:%M:%S', time());
                 $fields['index_map'] = 'N';
                 $fields['locked'] = 'Y';
                 // no direct contributions
                 $fields['rank'] = 40000;
                 // at the end of the list
                 $fields['title'] = i18n::c('External News');
                 $fields['description'] = i18n::c('Received from feeding servers');
                 if (!($fields['id'] = Sections::post($fields))) {
                     Logger::remember('feeds/feeds.php: Impossible to add a section.');
                     return;
                 }
                 $anchor = 'section:' . $fields['id'];
             }
         }
         // process retrieved links
         $links = 0;
         foreach ($news as $item) {
             // link has to be valid
             if (!isset($item['link']) || !($item['title'] . $item['description'])) {
                 if (isset($context['debug_feeds']) && $context['debug_feeds'] == 'Y') {
                     Logger::remember('feeds/feeds.php: feed item is invalid', $item, 'debug');
                 }
                 continue;
             }
             // skip banned servers
             if ($banned_pattern && preg_match($banned_pattern, $item['link'])) {
                 if (isset($context['debug_feeds']) && $context['debug_feeds'] == 'Y') {
                     Logger::remember('feeds/feeds.php: feed host has been banned', $item['link'], 'debug');
                 }
                 continue;
             }
             // one link processed
             $links++;
             // link description
             $fields = array();
             $fields['anchor'] = $anchor;
             $fields['link_url'] = $item['link'];
             $fields['title'] = $item['title'];
             $fields['description'] = $item['description'];
             if ($item['category']) {
                 $fields['description'] .= ' (' . $item['category'] . ')';
             }
             $fields['edit_name'] = $feed_title;
             $fields['edit_address'] = $feed_url;
             $fields['edit_action'] = 'link:feed';
             if ($item['pubDate']) {
                 $fields['edit_date'] = gmstrftime('%Y-%m-%d %H:%M:%S', strtotime($item['pubDate']));
             }
             // update links that already exist in the database
             if (Links::have($item['link'], $anchor, $fields)) {
                 continue;
             }
             // save link in the database
             if (!Links::post($fields)) {
                 Logger::remember('feeds/feeds.php: Impossible to save feed link: ' . Logger::error_pop());
             }
         }
         // one feed has been processed
         $count += 1;
         // remember tick date
         Values::set('feeds.tick.' . $feed_url, $links);
     }
     // cap the number of links used for news
     if (!isset($context['maximum_news']) || !$context['maximum_news']) {
         $context['maximum_news'] = 1000;
     }
     if ($context['maximum_news'] > 10) {
         include_once $context['path_to_root'] . 'links/links.php';
         Links::purge_old_news($context['maximum_news']);
     }
     // compute execution time
     $time = round(get_micro_time() - $start_time, 2);
     // report on work achieved
     if ($count > 1) {
         return 'feeds/feeds.php: ' . $count . ' feeds have been processed (' . $time . ' seconds)' . BR;
     } elseif ($count == 1) {
         return 'feeds/feeds.php: 1 feed has been processed (' . $time . ' seconds)' . BR;
     } else {
         return 'feeds/feeds.php: nothing to do (' . $time . ' seconds)' . BR;
     }
 }