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<?php |
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/** |
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* @package net.nemein.wiki |
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* @author The Midgard Project, http://www.midgard-project.org |
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* @copyright The Midgard Project, http://www.midgard-project.org |
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* @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License |
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*/ |
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/** |
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* Wiki note helper class to be used by other components |
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* |
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* @package net.nemein.wiki |
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*/ |
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class net_nemein_wiki_wikipage extends midcom_db_article |
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{ |
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public $autodelete_dependents = [ |
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net_nemein_wiki_link_dba::class => 'frompage' |
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]; |
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public function _on_loaded() |
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{ |
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// Backwards compatibility |
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if ($this->name == '') { |
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$this->name = midcom_helper_misc::urlize($this->title); |
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$this->update(); |
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} |
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} |
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public function _on_creating() |
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{ |
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if ( $this->title == '' |
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|| !$this->topic) { |
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// We must have wikiword and topic at this stage |
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return false; |
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} |
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// Check for duplicates |
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$qb = self::new_query_builder(); |
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$qb->add_constraint('topic', '=', $this->topic); |
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$qb->add_constraint('title', '=', $this->title); |
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if ($qb->count() > 0) { |
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midcom_connection::set_error(MGD_ERR_OBJECT_NAME_EXISTS); |
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return false; |
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} |
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// Generate URL-clean name |
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if ($this->name != 'index') { |
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$this->name = midcom_helper_misc::urlize($this->title); |
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} |
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return true; |
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} |
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public function _on_updating() |
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{ |
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if (midcom::get()->auth->user) { |
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// Place current user in the page authors list |
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$authors = explode('|', substr($this->metadata->authors, 1, -1)); |
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if (!in_array(midcom::get()->auth->user->guid, $authors)) { |
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$authors[] = midcom::get()->auth->user->guid; |
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$this->metadata->authors = '|' . implode('|', $authors) . '|'; |
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} |
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} |
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return parent::_on_updating(); |
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} |
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public function _on_updated() |
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{ |
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parent::_on_updated(); |
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$this->update_watchers(); |
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$this->update_link_cache(); |
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} |
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/** |
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* Caches links in the wiki page into database for faster "what links here" queries |
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*/ |
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private function update_link_cache() |
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{ |
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$parser = new net_nemein_wiki_parser($this); |
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$links_in_content = $parser->find_links_in_content(); |
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$qb = net_nemein_wiki_link_dba::new_query_builder(); |
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$qb->add_constraint('frompage', '=', $this->id); |
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// Check links in DB versus links in content to see what needs to be removed |
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foreach ($qb->execute() as $link) { |
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if (!array_key_exists($link->topage, $links_in_content)) { |
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// This link is not any more in content, remove |
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$link->delete(); |
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continue; |
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} |
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//no change for this link |
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unset($links_in_content[$link->topage]); |
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} |
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// What is still left needs to be added |
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foreach (array_keys($links_in_content) as $wikilink) { |
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$link = new net_nemein_wiki_link_dba(); |
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$link->frompage = $this->id; |
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$link->topage = $wikilink; |
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debug_add("Creating net_nemein_wiki_link_dba: from page #{$link->frompage}, to page: '$link->topage'"); |
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$link->create(); |
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} |
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} |
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/** |
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* Get list of people watching this page |
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*/ |
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private function list_watchers() : array |
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{ |
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$topic = new midcom_db_topic($this->topic); |
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$qb = new midgard_query_builder('midgard_parameter'); |
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$qb->add_constraint('domain', '=', 'net.nemein.wiki:watch'); |
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$qb->begin_group('OR'); |
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// List people watching the whole wiki |
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$qb->add_constraint('parentguid', '=', $topic->guid); |
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// List people watching this particular page |
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$qb->add_constraint('parentguid', '=', $this->guid); |
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$qb->end_group(); |
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return array_unique(array_column($qb->execute(), 'name')); |
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} |
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private function update_watchers() |
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{ |
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$watchers = $this->list_watchers(); |
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if (empty($watchers)) { |
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return; |
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} |
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$diff = $this->get_diff(); |
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if (empty($diff)) { |
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// No sense to email empty diffs |
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return; |
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} |
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// Construct the message |
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$message = []; |
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$user_string = midcom::get()->i18n->get_string('anonymous', 'net.nemein.wiki'); |
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if (midcom::get()->auth->user) { |
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$user = midcom::get()->auth->user->get_storage(); |
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$user_string = $user->name; |
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} |
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// Title for long notifications |
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$message['title'] = sprintf(midcom::get()->i18n->get_string('page %s has been updated by %s', 'net.nemein.wiki'), $this->title, $user_string); |
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// Content for long notifications |
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$message['content'] = "{$message['title']}\n\n"; |
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$message['content'] .= midcom::get()->i18n->get_string('page modifications', 'net.nemein.wiki') . ":\n"; |
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$message['content'] .= "\n{$diff}\n\n"; |
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$message['content'] .= midcom::get()->i18n->get_string('link to page', 'net.nemein.wiki') . ":\n"; |
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$message['content'] .= midcom::get()->permalinks->create_permalink($this->guid); |
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// Content for short notifications |
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$topic = new midcom_db_topic($this->topic); |
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$message['abstract'] = sprintf(midcom::get()->i18n->get_string('page %s has been updated by %s in wiki %s', 'net.nemein.wiki'), $this->title, $user_string, $topic->extra); |
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debug_add("Processing list of Wiki subscribers"); |
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// Send the message out |
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foreach ($watchers as $recipient) { |
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debug_add("Notifying {$recipient}..."); |
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org_openpsa_notifications::notify('net.nemein.wiki:page_updated', $recipient, $message); |
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} |
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} |
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private function get_diff() : string |
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{ |
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// Load the RCS handler |
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$rcs_handler = midcom::get()->rcs->load_backend($this); |
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// Find out what versions to diff |
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$history = $rcs_handler->get_history(); |
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if (count($history->all()) < 2) { |
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return ''; |
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} |
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$this_version = $history->get_last()['revision']; |
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$prev_version = $history->get_prev_version($this_version); |
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try { |
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$diff_fields = $rcs_handler->get_diff($prev_version, $this_version); |
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} catch (midcom_error $e) { |
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$e->log(); |
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return ''; |
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} |
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return $diff_fields['content']['diff'] ?? ''; |
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} |
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} |
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flack /
openpsa
