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<?php
/**
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Esther Brunner <wikidesign@gmail.com>
*/
// must be run within Dokuwiki
if (!defined('DOKU_INC')) die();
if (!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'admin.php');
class admin_plugin_discussion extends DokuWiki_Admin_Plugin {
function getInfo() {
return array(
'author' => 'Gina Häußge, Michael Klier, Esther Brunner',
'email' => 'dokuwiki@chimeric.de',
'date' => @file_get_contents(DOKU_PLUGIN.'discussion/VERSION'),
'name' => 'Discussion Plugin (admin component)',
'desc' => 'Moderate discussions',
'url' => 'http://wiki.splitbrain.org/plugin:discussion',
);
}
function getMenuSort() { return 200; }
function forAdminOnly() { return false; }
function handle() {
global $lang;
$cid = $_REQUEST['cid'];
if (is_array($cid)) $cid = array_keys($cid);
$action =& plugin_load('action', 'discussion');
if (!$action) return; // couldn't load action plugin component
switch ($_REQUEST['comment']) {
case $lang['btn_delete']:
$action->_save($cid, '');
break;
case $this->getLang('btn_show'):
$action->_save($cid, '', 'show');
break;
case $this->getLang('btn_hide'):
$action->_save($cid, '', 'hide');
break;
case $this->getLang('btn_change'):
$this->_changeStatus($_REQUEST['status']);
break;
}
}
function html() {
global $conf;
$first = $_REQUEST['first'];
if (!is_numeric($first)) $first = 0;
$num = $conf['recent'];
ptln('<h1>'.$this->getLang('menu').'</h1>');
$threads = $this->_getThreads();
// slice the needed chunk of discussion pages
$more = ((count($threads) > ($first + $num)) ? true : false);
$threads = array_slice($threads, $first, $num);
foreach ($threads as $thread) {
$comments = $this->_getComments($thread);
$this->_threadHead($thread);
if ($comments === false) {
ptln('</div>', 6); // class="level2"
continue;
}
ptln('<form method="post" action="'.wl($thread['id']).'">', 8);
ptln('<div class="no">', 10);
ptln('<input type="hidden" name="do" value="admin" />', 10);
ptln('<input type="hidden" name="page" value="discussion" />', 10);
echo html_buildlist($comments, 'admin_discussion', array($this, '_commentItem'), array($this, '_li_comment'));
$this->_actionButtons($thread['id']);
}
$this->_browseDiscussionLinks($more, $first, $num);
}
/**
* Returns an array of pages with discussion sections, sorted by recent comments
*/
function _getThreads() {
global $conf;
require_once(DOKU_INC.'inc/search.php');
// returns the list of pages in the given namespace and it's subspaces
$items = array();
search($items, $conf['datadir'], 'search_allpages', '');
// add pages with comments to result
$result = array();
foreach ($items as $item) {
$id = $item['id'];
// some checks
$file = metaFN($id, '.comments');
if (!@file_exists($file)) continue; // skip if no comments file
$date = filemtime($file);
$result[] = array(
'id' => $id,
'file' => $file,
'date' => $date,
);
}
// finally sort by time of last comment
usort($result, array('admin_plugin_discussion', '_threadCmp'));
return $result;
}
/**
* Callback for comparison of thread data.
*
* Used for sorting threads in descending order by date of last comment.
* If this date happens to be equal for the compared threads, page id
* is used as second comparison attribute.
*/
function _threadCmp($a, $b) {
if ($a['date'] == $b['date']) {
return strcmp($a['id'], $b['id']);
}
return ($a['date'] < $b['date']) ? 1 : -1;
}
/**
* Outputs header, page ID and status of a discussion thread
*/
function _threadHead($thread) {
$id = $thread['id'];
$labels = array(
0 => $this->getLang('off'),
1 => $this->getLang('open'),
2 => $this->getLang('closed')
);
$title = p_get_metadata($id, 'title');
if (!$title) $title = $id;
ptln('<h2 name="'.$id.'" id="'.$id.'">'.hsc($title).'</h2>', 6);
ptln('<form method="post" action="'.wl($id).'">', 6);
ptln('<div class="mediaright">', 8);
ptln('<input type="hidden" name="do" value="admin" />', 10);
ptln('<input type="hidden" name="page" value="discussion" />', 10);
ptln($this->getLang('status').': <select name="status" size="1">', 10);
foreach ($labels as $key => $label) {
$selected = (($key == $thread['status']) ? ' selected="selected"' : '');
ptln('<option value="'.$key.'"'.$selected.'>'.$label.'</option>', 12);
}
ptln('</select> ', 10);
ptln('<input type="submit" name="comment" value="'.$this->getLang('btn_change').'" class"button" title="'.$this->getLang('btn_change').'" />', 10);
ptln('</div>', 8);
ptln('</form>', 6);
ptln('<div class="level2">', 6);
ptln('<a href="'.wl($id).'" class="wikilink1">'.$id.'</a> ', 8);
return true;
}
/**
* Returns the full comments data for a given wiki page
*/
function _getComments(&$thread) {
$id = $thread['id'];
if (!$thread['file']) $thread['file'] = metaFN($id, '.comments');
if (!@file_exists($thread['file'])) return false; // no discussion thread at all
$data = unserialize(io_readFile($thread['file'], false));
$thread['status'] = $data['status'];
$thread['number'] = $data['number'];
if (!$data['status']) return false; // comments are turned off
if (!$data['comments']) return false; // no comments
$result = array();
foreach ($data['comments'] as $cid => $comment) {
$this->_addComment($cid, $data, $result);
}
if (empty($result)) return false;
else return $result;
}
/**
* Recursive function to add the comment hierarchy to the result
*/
function _addComment($cid, &$data, &$result, $parent = '', $level = 1) {
if (!is_array($data['comments'][$cid])) return; // corrupt datatype
$comment = $data['comments'][$cid];
if ($comment['parent'] != $parent) return; // answer to another comment
// okay, add the comment to the result
$comment['id'] = $cid;
$comment['level'] = $level;
$result[] = $comment;
// check answers to this comment
if (count($comment['replies'])) {
foreach ($comment['replies'] as $rid) {
$this->_addComment($rid, $data, $result, $cid, $level + 1);
}
}
}
/**
* Checkbox and info about a comment item
*/
function _commentItem($comment) {
global $conf;
// prepare variables
if (is_array($comment['user'])) { // new format
$name = $comment['user']['name'];
$mail = $comment['user']['mail'];
} else { // old format
$name = $comment['name'];
$mail = $comment['mail'];
}
if (is_array($comment['date'])) { // new format
$created = $comment['date']['created'];
} else { // old format
$created = $comment['date'];
}
$abstract = preg_replace('/\s+?/', ' ', strip_tags($comment['xhtml']));
if (utf8_strlen($abstract) > 160) $abstract = utf8_substr($abstract, 0, 160).'...';
return '<input type="checkbox" name="cid['.$comment['id'].']" value="1" /> '.
$this->email($mail, $name, 'email').', '.strftime($conf['dformat'], $created).': '.
'<span class="abstract">'.$abstract.'</span>';
}
/**
* list item tag
*/
function _li_comment($comment) {
$show = ($comment['show'] ? '' : ' hidden');
return '<li class="level'.$comment['level'].$show.'">';
}
/**
* Show buttons to bulk remove, hide or show comments
*/
function _actionButtons($id) {
global $lang;
ptln('<div class="comment_buttons">', 12);
ptln('<input type="submit" name="comment" value="'.$this->getLang('btn_show').'" class="button" title="'.$this->getLang('btn_show').'" />', 14);
ptln('<input type="submit" name="comment" value="'.$this->getLang('btn_hide').'" class="button" title="'.$this->getLang('btn_hide').'" />', 14);
ptln('<input type="submit" name="comment" value="'.$lang['btn_delete'].'" class="button" title="'.$lang['btn_delete'].'" />', 14);
ptln('</div>', 12); // class="comment_buttons"
ptln('</div>', 10); // class="no"
ptln('</form>', 8);
ptln('</div>', 6); // class="level2"
return true;
}
/**
* Displays links to older newer discussions
*/
function _browseDiscussionLinks($more, $first, $num) {
global $ID;
if (($first == 0) && (!$more)) return true;
$params = array('do' => 'admin', 'page' => 'discussion');
$last = $first+$num;
ptln('<div class="level1">', 8);
if ($first > 0) {
$first -= $num;
if ($first < 0) $first = 0;
$params['first'] = $first;
ptln('<p class="centeralign">', 8);
$ret = '<a href="'.wl($ID, $params).'" class="wikilink1"><< '.$this->getLang('newer').'</a>';
if ($more) {
$ret .= ' | ';
} else {
ptln($ret, 10);
ptln('</p>', 8);
}
} else if ($more) {
ptln('<p class="centeralign">', 8);
}
if ($more) {
$params['first'] = $last;
$ret .= '<a href="'.wl($ID, $params).'" class="wikilink1">'.$this->getLang('older').' >></a>';
ptln($ret, 10);
ptln('</p>', 8);
}
ptln('</div>', 6); // class="level1"
return true;
}
/**
* Changes the status of a comment
*/
function _changeStatus($new) {
global $ID;
// get discussion meta file name
$file = metaFN($ID, '.comments');
$data = unserialize(io_readFile($file, false));
$old = $data['status'];
if ($old == $new) return true;
// save the comment metadata file
$data['status'] = $new;
io_saveFile($file, serialize($data));
// look for ~~DISCUSSION~~ command in page file and change it accordingly
$patterns = array('~~DISCUSSION:off\2~~', '~~DISCUSSION\2~~', '~~DISCUSSION:closed\2~~');
$replace = $patterns[$new];
$wiki = preg_replace('/~~DISCUSSION([\w:]*)(\|?.*?)~~/', $replace, rawWiki($ID));
saveWikiText($ID, $wiki, $this->getLang('statuschanged'), true);
return true;
}
}
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