* * heavily inspired (copy-pasted) from * Esther Brunner 's poll plugin * * previous version by * Stephane Chazelas * * latest changes: * - added language support (german) * - fixed the error message "Security Token did not match. Possible CSRF attack." * - simplyfied source code */ if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/'); if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/'); require_once(DOKU_PLUGIN.'syntax.php'); /** * All DokuWiki plugins to extend the parser/rendering mechanism * need to inherit from this class */ class syntax_plugin_userpoll extends DokuWiki_Syntax_Plugin { /** * return some info */ function getInfo(){ return array( 'author' => 'Randolf Rotta', 'email' => 'randolf.rotta@gmail.com', 'date' => '2013-05-09', 'name' => 'Userpoll Plugin', 'desc' => 'allows to create simple polls', 'url' => 'http://wiki.splitbrain.org/plugin:userpoll', ); } function getType(){ return 'substition';} function getPType(){ return 'block';} function getSort(){ return 167; } /** * Connect pattern to lexer */ function connectTo($mode){ $this->Lexer->addSpecialPattern('.+?', $mode, 'plugin_userpoll'); } /** * Handle the match */ function handle($match, $state, $pos, &$handler){ $match = substr($match, 10, -11); // strip markup list($title, $options) = preg_split('/>/u', $match, 2); $options = explode('*', $options); $text = array_shift($options); for ($i = 0; $i < count($options); $i++){ $options[$i] = trim($options[$i]); } return array(trim($title), trim($text), $options); } /** * Create output */ function render($mode, &$renderer, $data) { if ($mode == 'xhtml'){ if (isset($_POST['vote']) && checkSecurityToken()) { $this->_handlePost($data); } return $this->_renderPoll($renderer, $data); } return false; } function _handlePost($data) { $options = $data[2]; $title = hsc($data[0]); $pollid = md5('@userpoll@'.$title); $user = $_SERVER['REMOTE_USER']; // ignore submits for other polls if ($pollid != $_POST['pollid']) return; // get poll file contents $pfile = metaFN($pollid, '.userpoll'); $poll = unserialize(@file_get_contents($pfile)); if ($_POST['vote']=='@FORGET@') { // user changed his/her mind, wipe him from the records $opt = $poll['users'][$user]; unset($poll['users'][$user]); $poll['results'][$opt] -= 1; $poll['votes'] -= 1; } elseif (!isset($poll['users'][$user])) { // user has just voted -> update results $vote = $_POST['vote']; $c = count($options); for ($i = 0; $i < $c; $i++){ $opt = hsc($options[$i]); if ($vote == $opt){ $poll['results'][$opt] += 1; $poll['votes'] += 1; $poll['users'][$user] = $opt; } elseif (!isset($poll['results'][$opt])){ $poll['results'][$opt] = 0; } } } // write poll file $fh = fopen($pfile, 'w'); fwrite($fh, serialize($poll)); fclose($fh); } function _renderPoll(&$renderer, $data) { $options = $data[2]; $text = $data[1]; $title = hsc($data[0]); // prevent caching to ensure the poll results are fresh $renderer->info['cache'] = false; // get poll file contents $pollid = md5('@userpoll@'.$title); $pfile = metaFN($pollid, '.userpoll'); $poll = unserialize(@file_get_contents($pfile)); // output the poll $renderer->doc .= '

'. ''.$title.''; if ($text) { $renderer->doc .= '

'.$renderer->_xmlEntities($text).'

'; } if (isset($_SERVER['REMOTE_USER'])) { $user = $_SERVER['REMOTE_USER']; if (isset($poll['users']) && isset($poll['users'][$user])) { // display results $renderer->doc .= $this->_pollResults($poll, $pollid); } else { // display poll form $renderer->doc .= $this->_pollForm($options, $pollid); } } else { $renderer->doc .= '

' .$this->getLang('login_required') . '

' . $this->_pollResults($poll); } $renderer->doc .= '

'; return true; } function _pollResults($poll, $pollid = false){ global $ID; global $lang; $total = $poll['votes']; if ($total == 0) return ''; $ret = ''; $options = array_keys($poll['results']); $votes = array_values($poll['results']); for ($i = 0; $i < count($options); $i++){ $absolute = $votes[$i]; $percent = round(($absolute*100)/$total); $ret .= ''. ''; } if ($pollid) { // user had already voted, allow him/her to changer his/her mind $ret .= ''; } $ret .= ''; return $ret; } function _pollForm($options, $pollid){ global $lang; global $ID; $ret = ''; return $ret; } } //Setup VIM: ex: et ts=4 enc=utf-8 :

'.$options[$i].'	'; if ($percent) $ret .= ' '; $ret .= '	'.$percent.'%	('.$absolute.')
' . ' ' . ' ' . '' . '' . '' . '' // einfg durch AG Server Mai 2013 . '