*/ // must be run within Dokuwiki if (!defined('DOKU_INC')) die(); if (!defined('DOKU_LF')) define('DOKU_LF', "\n"); if (!defined('DOKU_TAB')) define('DOKU_TAB', "\t"); if (!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/'); require_once(DOKU_PLUGIN.'action.php'); class action_plugin_discussion extends DokuWiki_Action_Plugin{ function getInfo(){ return array( 'author' => 'Esther Brunner', 'email' => 'wikidesign@gmail.com', 'date' => '2007-03-01', 'name' => 'Discussion Plugin (action component)', 'desc' => 'Enables discussion features', 'url' => 'http://www.wikidesign.ch/en/plugin/discussion/start', ); } function register(&$contr){ $contr->register_hook( 'ACTION_ACT_PREPROCESS', 'BEFORE', $this, 'handle_act_preprocess', array() ); $contr->register_hook( 'TPL_ACT_RENDER', 'AFTER', $this, 'comments', array() ); $contr->register_hook( 'RENDERER_CONTENT_POSTPROCESS', 'AFTER', $this, 'add_toc_item', array() ); $contr->register_hook( 'INDEXER_PAGE_ADD', 'AFTER', $this, 'idx_add_discussion', array() ); } /** * Main function; dispatches the comment actions */ function comments(&$event, $param){ if ($event->data != 'show') return; // nothing to do for us $cid = $_REQUEST['cid']; switch ($_REQUEST['comment']){ case 'add': $comment = array( 'user' => array( 'id' => hsc($_REQUEST['user']), 'name' => hsc($_REQUEST['name']), 'mail' => hsc($_REQUEST['mail']), 'url' => hsc($_REQUEST['url']), 'address' => hsc($_REQUEST['address'])), 'date' => array('created' => $_REQUEST['date']), 'raw' => cleanText($_REQUEST['text']) ); $repl = $_REQUEST['reply']; $this->_add($comment, $repl); break; case 'edit': $this->_show(NULL, $cid); break; case 'save': $raw = cleanText($_REQUEST['text']); $this->_save(array($cid), $raw); break; case 'delete': $this->_save(array($cid), ''); break; case 'toogle': $this->_save(array($cid), '', 'toogle'); break; default: // 'show' => $this->_show(), 'reply' => $this->_show($cid) $this->_show($cid); } } /** * Shows all comments of the current page */ function _show($reply = NULL, $edit = NULL){ global $ID, $INFO, $ACT; if ($ACT !== 'show') return false; // get .comments meta file name $file = metaFN($ID, '.comments'); if (!@file_exists($file)){ // create .comments meta file if automatic setting is switched on if ($this->getConf('automatic') && $INFO['exists']){ $data = array('status' => 1, 'number' => 0); io_saveFile($file, serialize($data)); } } else { // load data $data = unserialize(io_readFile($file, false)); } if (!$data['status']) return false; // comments are turned off // section title $title = $this->getLang('discussion'); echo '

'; echo '

'.$title.'

'; echo ''; // level2 echo '

'; // comment_wrapper return true; } /** * Adds a new comment and then displays all comments */ function _add($comment, $parent){ global $ID, $TEXT; $otxt = $TEXT; // set $TEXT to comment text for wordblock check $TEXT = $comment['raw']; // spamcheck against the DokuWiki blacklist if (checkwordblock()){ msg($this->getLang('wordblock'), -1); $this->_show(); return false; } $TEXT = $otxt; // restore global $TEXT // get discussion meta file name $file = metaFN($ID, '.comments'); $data = array(); $data = unserialize(io_readFile($file, false)); if ($data['status'] != 1) return false; // comments off or closed if ((!$this->getConf('allowguests')) && ($comment['user']['id'] != $_SERVER['REMOTE_USER'])) return false; // guest comments not allowed if ($comment['date']['created']) $date = strtotime($comment['date']['created']); else $date = time(); if ($date == -1) $date = time(); $cid = md5($comment['user']['id'].$date); // create a unique id if (!is_array($data['comments'][$parent])) $parent = NULL; // invalid parent comment // render the comment $xhtml = $this->_render($comment['raw']); // fill in the new comment $data['comments'][$cid] = array( 'user' => $comment['user'], 'date' => array('created' => $date), 'show' => true, 'raw' => $comment['raw'], 'xhtml' => $xhtml, 'parent' => $parent, 'replies' => array() ); // update parent comment if ($parent) $data['comments'][$parent]['replies'][] = $cid; // update the number of comments $data['number']++; // save the comment metadata file io_saveFile($file, serialize($data)); $this->_addLogEntry($date, $ID, 'cc', '', $cid); // notify subscribers of the page $this->_notify($data['comments'][$cid]); $this->_show(); return true; } /** * Saves the comment with the given ID and then displays all comments */ function _save($cids, $raw, $act = NULL){ global $ID, $INFO; if ($raw){ global $TEXT; $otxt = $TEXT; // set $TEXT to comment text for wordblock check $TEXT = $raw; // spamcheck against the DokuWiki blacklist if (checkwordblock()){ msg($this->getLang('wordblock'), -1); $this->_show(); return false; } $TEXT = $otxt; // restore global $TEXT } // get discussion meta file name $file = metaFN($ID, '.comments'); $data = unserialize(io_readFile($file, false)); if (!is_array($cids)) $cids = array($cids); foreach ($cids as $cid){ if (is_array($data['comments'][$cid]['user'])){ $user = $data['comments'][$cid]['user']['id']; $convert = false; } else { $user = $data['comments'][$cid]['user']; $convert = true; } // someone else was trying to edit our comment -> abort if (($user != $_SERVER['REMOTE_USER']) && ($INFO['perm'] != AUTH_ADMIN)) return false; $date = time(); // need to convert to new format? if ($convert){ $data['comments'][$cid]['user'] = array( 'id' => $user, 'name' => $data['comments'][$cid]['name'], 'mail' => $data['comments'][$cid]['mail'], 'url' => $data['comments'][$cid]['url'], 'address' => $data['comments'][$cid]['address'], ); $data['comments'][$cid]['date'] = array( 'created' => $data['comments'][$cid]['date'] ); } if ($act == 'toogle'){ // toogle visibility $now = $data['comments'][$cid]['show']; $data['comments'][$cid]['show'] = !$now; $data['number'] = $this->_count($data); $type = ($data['comments'][$cid]['show'] ? 'sc' : 'hc'); } elseif ($act == 'show'){ // show comment $data['comments'][$cid]['show'] = true; $data['number'] = $this->_count($data); $type = 'sc'; // show comment } elseif ($act == 'hide'){ // hide comment $data['comments'][$cid]['show'] = false; $data['number'] = $this->_count($data); $type = 'hc'; // hide comment } elseif (!$raw){ // remove the comment $data['comments'] = $this->_removeComment($cid, $data['comments']); $data['number'] = $this->_count($data); $type = 'dc'; // delete comment } else { // save changed comment $xhtml = $this->_render($raw); // now change the comment's content $data['comments'][$cid]['date']['modified'] = $date; $data['comments'][$cid]['raw'] = $raw; $data['comments'][$cid]['xhtml'] = $xhtml; $type = 'ec'; // edit comment } } // save the comment metadata file io_saveFile($file, serialize($data)); $this->_addLogEntry($date, $ID, $type, '', $cid); $this->_show(); return true; } /** * Recursive function to remove a comment */ function _removeComment($cid, $comments){ if (is_array($comments[$cid]['replies'])){ foreach ($comments[$cid]['replies'] as $rid){ $comments = $this->_removeComment($rid, $comments); } } unset($comments[$cid]); return $comments; } /** * Prints an individual comment */ function _print($cid, &$data, $parent = '', $reply = '', $visible = true){ global $conf, $lang, $ID, $INFO; if (!isset($data['comments'][$cid])) return false; // comment was removed $comment = $data['comments'][$cid]; if (!is_array($comment)) return false; // corrupt datatype if ($comment['parent'] != $parent) return true; // reply to an other comment if (!$comment['show']){ // comment hidden if ($INFO['perm'] == AUTH_ADMIN) echo '

'.DOKU_LF; else return true; } // comment head with date and user data echo '

'.DOKU_LF. ''.DOKU_LF. ''; // prepare variables if (is_array($comment['user'])){ // new format $user = $comment['user']['id']; $name = $comment['user']['name']; $mail = $comment['user']['mail']; $url = $comment['user']['url']; $address = $comment['user']['address']; } else { // old format $user = $comment['user']; $name = $comment['name']; $mail = $comment['mail']; $url = $comment['url']; $address = $comment['address']; } if (is_array($comment['date'])){ // new format $created = $comment['date']['created']; $modified = $comment['date']['modified']; } else { // old format $created = $comment['date']; $modified = $comment['edited']; } // show avatar image? if ($this->getConf('useavatar') && (!plugin_isdisabled('avatar')) && ($avatar =& plugin_load('helper', 'avatar'))){ if ($user) echo $avatar->getXHTML($user); else echo $avatar->getXHTML($mail); $style = ' style="margin-left: '.($avatar->getConf('size') + 14).'px;"'; } else { $style = ' style="margin-left: 20px;"'; } if ($this->getConf('linkemail') && $mail){ echo $this->email($mail, $name, 'email fn'); } elseif ($url){ echo $this->external_link($url, $name, 'urlextern url fn'); } else { echo ''.$name.''; } if ($address) echo ', '.$address.''; echo ', '.date($conf['dformat'], $created).''; if ($comment['edited']) echo ' ('.date($conf['dformat'], $modified). ')'; echo ':'.DOKU_LF.'

'.DOKU_LF; // class="comment_head" // main comment content echo '

getConf('useavatar') ? $style : '').'>'.DOKU_LF. $comment['xhtml'].DOKU_LF. '

'.DOKU_LF.'

'.DOKU_LF; // class="comment_body" and class="hentry" if ($visible){ // show hide/show toogle button? echo '

'.DOKU_LF; if ($INFO['perm'] == AUTH_ADMIN){ if (!$comment['show']) $label = $this->getLang('btn_show'); else $label = $this->getLang('btn_hide'); $this->_button($cid, $label, 'toogle'); } // show reply button? if (($data['status'] == 1) && !$reply && $comment['show'] && ($this->getConf('allowguests') || $_SERVER['REMOTE_USER'])) $this->_button($cid, $this->getLang('btn_reply'), 'reply', true); // show edit and delete button? if ((($user == $_SERVER['REMOTE_USER']) && ($user != '')) || ($INFO['perm'] == AUTH_ADMIN)) $this->_button($cid, $lang['btn_secedit'], 'edit', true); if ($INFO['perm'] == AUTH_ADMIN) $this->_button($cid, $lang['btn_delete'], 'delete'); echo '

'.DOKU_LF; // class="comment_buttons" echo '

getConf('usegravatar') ? $style : '').'>

'.DOKU_LF; } // replies to this comment entry? if (count($comment['replies'])){ echo '

'.DOKU_LF; $visible = ($comment['show'] && $visible); foreach ($comment['replies'] as $rid){ $this->_print($rid, $data, $cid, $reply, $visible); } echo '

'.DOKU_LF; // class="comment_replies" } if (!$comment['show']) echo '

'.DOKU_LF; // class="comment_hidden" // reply form if ($reply == $cid){ echo '

'.DOKU_LF; $this->_form('', 'add', $cid); echo '

'.DOKU_LF; // class="comment_replies" } } /** * Outputs the comment form */ function _form($raw = '', $act = 'add', $cid = NULL){ global $lang, $conf, $ID, $INFO; // not for unregistered users when guest comments aren't allowed if (!$_SERVER['REMOTE_USER'] && !$this->getConf('allowguests')) return false; // fill $raw with $_REQUEST['text'] if it's empty (for failed CAPTCHA check) if (!$raw && ($_REQUEST['comment'] == 'show')) $raw = $_REQUEST['text']; ?>

getConf('adminimport') && ($INFO['perm'] == AUTH_ADMIN)))){ ?>

getConf('urlfield')){ ?>

getLang('url') ?>:

getConf('addressfield')){ ?>

getLang('address') ?>:

getConf('adminimport') && ($INFO['perm'] == AUTH_ADMIN)){ ?>

getLang('date') ?>:

true); trigger_event('HTML_EDITFORM_INJECTION', $evdata); ?>

getConf('usecocomment')) echo $this->_coComment(); } /** * Adds a javascript to interact with coComments */ function _coComment(){ global $ID, $conf, $INFO; $user = $_SERVER['REMOTE_USER']; ?> * @author Ben Coburn */ function _addLogEntry($date, $id, $type = 'cc', $summary = '', $extra = ''){ global $conf; $changelog = $conf['metadir'].'/_comments.changes'; if(!$date) $date = time(); //use current time if none supplied $remote = $_SERVER['REMOTE_ADDR']; $user = $_SERVER['REMOTE_USER']; $strip = array("\t", "\n"); $logline = array( 'date' => $date, 'ip' => $remote, 'type' => str_replace($strip, '', $type), 'id' => $id, 'user' => $user, 'sum' => str_replace($strip, '', $summary), 'extra' => str_replace($strip, '', $extra) ); // add changelog line $logline = implode("\t", $logline)."\n"; io_saveFile($changelog, $logline, true); //global changelog cache io_saveFile($conf['metadir'].'/_dokuwiki.changes', $logline, true); $this->_trimRecentCommentsLog($changelog); } /** * Trims the recent comments cache to the last $conf['changes_days'] recent * changes or $conf['recent'] items, which ever is larger. * The trimming is only done once a day. * * @author Ben Coburn */ function _trimRecentCommentsLog($changelog){ global $conf; if (@file_exists($changelog) && (filectime($changelog) + 86400) < time() && !@file_exists($changelog.'_tmp')){ io_lock($changelog); $lines = file($changelog); if (count($lines)<$conf['recent']) { // nothing to trim io_unlock($changelog); return true; } io_saveFile($changelog.'_tmp', ''); // presave tmp as 2nd lock $trim_time = time() - $conf['recent_days']*86400; $out_lines = array(); for ($i=0; $i 0) { ksort($old_lines); $out_lines = array_merge(array_slice($old_lines,-$extra),$out_lines); } // save trimmed changelog io_saveFile($changelog.'_tmp', implode('', $out_lines)); @unlink($changelog); if (!rename($changelog.'_tmp', $changelog)) { // rename failed so try another way... io_unlock($changelog); io_saveFile($changelog, implode('', $out_lines)); @unlink($changelog.'_tmp'); } else { io_unlock($changelog); } return true; } } /** * Sends a notify mail on new comment * * @param array $comment data array of the new comment * * @author Andreas Gohr * @author Esther Brunner */ function _notify($comment){ global $conf; global $ID; if ((!$conf['subscribers']) && (!$conf['notify'])) return; //subscribers enabled? $bcc = subscriber_addresslist($ID); if ((empty($bcc)) && (!$conf['notify'])) return; $to = $conf['notify']; $text = io_readFile($this->localFN('subscribermail')); $search = array( '@PAGE@', '@TITLE@', '@DATE@', '@NAME@', '@TEXT@', '@UNSUBSCRIBE@', '@DOKUWIKIURL@', ); $replace = array( $ID, $conf['title'], date($conf['dformat'], $comment['date']['created']), $comment['user']['name'], $comment['raw'], wl($ID, 'do=unsubscribe', true, '&'), DOKU_URL, ); $text = str_replace($search, $replace, $text); $subject = '['.$conf['title'].'] '.$this->getLang('mail_newcomment'); mail_send($to, $subject, $text, $conf['mailfrom'], '', $bcc); } /** * Counts the number of visible comments */ function _count($data){ $number = 0; foreach ($data['comments'] as $cid => $comment){ if ($comment['parent']) continue; if (!$comment['show']) continue; $number++; $rids = $comment['replies']; if (count($rids)) $number = $number + $this->_countReplies($data, $rids); } return $number; } function _countReplies(&$data, $rids){ $number = 0; foreach ($rids as $rid){ if (!isset($data['comments'][$rid])) continue; // reply was removed if (!$data['comments'][$rid]['show']) continue; $number++; $rids = $data['comments'][$rid]['replies']; if (count($rids)) $number = $number + $this->_countReplies($data, $rids); } return $number; } /** * Renders the comment text */ function _render($raw){ if ($this->getConf('wikisyntaxok')){ $xhtml = $this->render($raw); } else { // wiki syntax not allowed -> just encode special chars $xhtml = htmlspecialchars(trim($raw)); } return $xhtml; } /** * Adds a TOC item for the discussion section */ function add_toc_item(&$event, $param){ if ($event->data[0] != 'xhtml') return; // nothing to do for us if (!$this->_hasDiscussion()) return; // no discussion section $pattern = '/

(.*?)<\/div>\s<\/div>/s'; if (!preg_match($pattern, $event->data[1], $match)) return; // no TOC on this page // ok, then let's do it! global $conf; $title = $this->getLang('discussion'); $section = '#discussion__section'; $level = 3 - $conf['toptoclevel']; $item = '

'.$title.'

'; if ($level == 1) $search = "\n

"; else $search = "\n\n"; $new = str_replace($search, $item.$search, $match[0]); $event->data[1] = preg_replace($pattern, $new, $event->data[1]); } /** * Finds out whether there is a discussion section for the current page */ function _hasDiscussion(){ global $ID; $cfile = metaFN($ID, '.comments'); if (!@file_exists($cfile)){ if ($this->getConf('automatic')) return true; else return false; } $comments = unserialize(io_readFile($cfile, false)); $num = $comments['number']; if ((!$comments['status']) || (($comments['status'] == 2) && (!$num))) return false; else return true; } /** * Checks if 'newthread' was given as action or the comment form was submitted */ function handle_act_preprocess(&$event, $param){ if ($event->data == 'newthread'){ // we can handle it -> prevent others // $event->stopPropagation(); $event->preventDefault(); $event->data = $this->_newThread(); } if ((in_array($_REQUEST['comment'], array('add', 'save'))) && (@file_exists(DOKU_PLUGIN.'captcha/action.php'))){ $this->_captchaCheck(); } } /** * Creates a new thread page */ function _newThread(){ global $ID, $INFO; $ns = cleanID($_REQUEST['ns']); $title = str_replace(':', '', $_REQUEST['title']); $back = $ID; $ID = ($ns ? $ns.':' : '').cleanID($title); $INFO = pageinfo(); // check if we are allowed to create this file if ($INFO['perm'] >= AUTH_CREATE){ //check if locked by anyone - if not lock for my self if ($INFO['locked']) return 'locked'; else lock($ID); // prepare the new thread file with default stuff if (!@file_exists($INFO['filepath'])){ global $TEXT; $TEXT = pageTemplate(array(($ns ? $ns.':' : '').$title)); if (!$TEXT){ $data = array('id' => $ID, 'ns' => $ns, 'title' => $title, 'back' => $back); $TEXT = $this->_pageTemplate($data); } return 'preview'; } else { return 'edit'; } } else { return 'show'; } } /** * Adapted version of pageTemplate() function */ function _pageTemplate($data){ global $conf, $INFO; $id = $data['id']; $user = $_SERVER['REMOTE_USER']; $tpl = io_readFile(DOKU_PLUGIN.'discussion/_template.txt'); // standard replacements $replace = array( '@ID@' => $id, '@NS@' => $data['ns'], '@PAGE@' => strtr(noNS($id),'_',' '), '@USER@' => $user, '@NAME@' => $INFO['userinfo']['name'], '@MAIL@' => $INFO['userinfo']['mail'], '@DATE@' => date($conf['dformat']), ); // additional replacements $replace['@BACK@'] = $data['back']; $replace['@TITLE@'] = $data['title']; // avatar if useavatar and avatar plugin available if ($this->getConf('useavatar') && (@file_exists(DOKU_PLUGIN.'avatar/syntax.php')) && (!plugin_isdisabled('avatar'))){ $replace['@AVATAR@'] = '{{avatar>'.$user.' }} '; } else { $replace['@AVATAR@'] = ''; } // tag if tag plugin is available if ((@file_exists(DOKU_PLUGIN.'tag/syntax/tag.php')) && (!plugin_isdisabled('tag'))){ $replace['@TAG@'] = "\n\n{{tag>}}"; } else { $replace['@TAG@'] = ''; } // do the replace $tpl = str_replace(array_keys($replace), array_values($replace), $tpl); return $tpl; } /** * Checks if the CAPTCHA string submitted is valid * * @author Andreas Gohr * @adaption Esther Brunner */ function _captchaCheck(){ if (@file_exists(DOKU_PLUGIN.'captcha/disabled')) return; // CAPTCHA is disabled require_once(DOKU_PLUGIN.'captcha/action.php'); $captcha = new action_plugin_captcha; // do nothing if logged in user and no CAPTCHA required if (!$captcha->getConf('forusers') && $_SERVER['REMOTE_USER']) return; // compare provided string with decrypted captcha $rand = PMA_blowfish_decrypt($_REQUEST['plugin__captcha_secret'], auth_cookiesalt()); $code = $captcha->_generateCAPTCHA($captcha->_fixedIdent(), $rand); if (!$_REQUEST['plugin__captcha_secret'] || !$_REQUEST['plugin__captcha'] || strtoupper($_REQUEST['plugin__captcha']) != $code){ // CAPTCHA test failed! Continue to edit instead of saving msg($captcha->getLang('testfailed'), -1); if ($_REQUEST['comment'] == 'save') $_REQUEST['comment'] = 'edit'; elseif ($_REQUEST['comment'] == 'add') $_REQUEST['comment'] = 'show'; } // if we arrive here it was a valid save } /** * Adds the comments to the index */ function idx_add_discussion(&$event, $param){ // get .comments meta file name $file = metaFN($event->data[0], '.comments'); if (@file_exists($file)) $data = unserialize(io_readFile($file, false)); if ((!$data['status']) || ($data['number'] == 0)) return; // comments are turned off // now add the comments if (isset($data['comments'])){ foreach ($data['comments'] as $key => $value){ $event->data[1] .= _addCommentWords($key, $data); } } } /** * Adds the words of a given comment to the index */ function _addCommentWords($cid, &$data, $parent = ''){ if (!isset($data['comments'][$cid])) return ''; // comment was removed $comment = $data['comments'][$cid]; if (!is_array($comment)) return ''; // corrupt datatype if ($comment['parent'] != $parent) return ''; // reply to an other comment if (!$comment['show']) return ''; // hidden comment $text = $comment['raw']; // we only add the raw comment text if (is_array($comment['replies'])){ // and the replies foreach ($comment['replies'] as $rid){ $text .= $this->_addCommentWords($rid, $data, $cid); } } return ' '.$text; } } //Setup VIM: ex: et ts=4 enc=utf-8 :