xref: /plugin/discussion/admin.php (revision b8efbcc2bc3516a7bfc8875ffe6c14c5a948c807) 
1<?php
2/**
3 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
4 * @author     Esther Brunner <wikidesign@gmail.com>
5 */
6
7// must be run within Dokuwiki
8if (!defined('DOKU_INC')) die();
9
10if (!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
11
12require_once(DOKU_PLUGIN.'admin.php');
13
14class admin_plugin_discussion extends DokuWiki_Admin_Plugin {
15
16    function getMenuSort() { return 200; }
17    function forAdminOnly() { return false; }
18
19    function handle() {
20        global $lang;
21
22        $cid = $_REQUEST['cid'];
23        if (is_array($cid)) $cid = array_keys($cid);
24
25        $action =& plugin_load('action', 'discussion');
26        if (!$action) return; // couldn't load action plugin component
27
28        switch ($_REQUEST['comment']) {
29            case $lang['btn_delete']:
30                $action->_save($cid, '');
31                break;
32
33            case $this->getLang('btn_show'):
34                $action->_save($cid, '', 'show');
35                break;
36
37            case $this->getLang('btn_hide'):
38                $action->_save($cid, '', 'hide');
39                break;
40
41            case $this->getLang('btn_change'):
42                $this->_changeStatus($_REQUEST['status']);
43                break;
44        }
45    }
46
47    function html() {
48        global $conf;
49
50        $first = $_REQUEST['first'];
51        if (!is_numeric($first)) $first = 0;
52        $num = ($conf['recent']) ? $conf['recent'] : 20;
53
54        ptln('<h1>'.$this->getLang('menu').'</h1>');
55
56        $threads = $this->_getThreads();
57
58        // slice the needed chunk of discussion pages
59        $more = ((count($threads) > ($first + $num)) ? true : false);
60        $threads = array_slice($threads, $first, $num);
61
62        foreach ($threads as $thread) {
63            $comments = $this->_getComments($thread);
64            $this->_threadHead($thread);
65            if ($comments === false) {
66                ptln('</div>', 6); // class="level2"
67                continue;
68            }
69
70            ptln('<form method="post" action="'.wl($thread['id']).'">', 8);
71            ptln('<div class="no">', 10);
72            ptln('<input type="hidden" name="do" value="admin" />', 10);
73            ptln('<input type="hidden" name="page" value="discussion" />', 10);
74            echo html_buildlist($comments, 'admin_discussion', array($this, '_commentItem'), array($this, '_li_comment'));
75            $this->_actionButtons($thread['id']);
76        }
77        $this->_browseDiscussionLinks($more, $first, $num);
78
79    }
80
81    /**
82     * Returns an array of pages with discussion sections, sorted by recent comments
83     */
84    function _getThreads() {
85        global $conf;
86
87        require_once(DOKU_INC.'inc/search.php');
88
89        // returns the list of pages in the given namespace and it's subspaces
90        $items = array();
91        search($items, $conf['datadir'], 'search_allpages', '');
92
93        // add pages with comments to result
94        $result = array();
95        foreach ($items as $item) {
96            $id = $item['id'];
97
98            // some checks
99            $file = metaFN($id, '.comments');
100            if (!@file_exists($file)) continue; // skip if no comments file
101
102            $date = filemtime($file);
103            $result[] = array(
104                    'id'   => $id,
105                    'file' => $file,
106                    'date' => $date,
107                    );
108        }
109
110        // finally sort by time of last comment
111        usort($result, array('admin_plugin_discussion', '_threadCmp'));
112
113        return $result;
114    }
115
116    /**
117     * Callback for comparison of thread data.
118     *
119     * Used for sorting threads in descending order by date of last comment.
120     * If this date happens to be equal for the compared threads, page id
121     * is used as second comparison attribute.
122     */
123    function _threadCmp($a, $b) {
124        if ($a['date'] == $b['date']) {
125            return strcmp($a['id'], $b['id']);
126        }
127        return ($a['date'] < $b['date']) ? 1 : -1;
128    }
129
130    /**
131     * Outputs header, page ID and status of a discussion thread
132     */
133    function _threadHead($thread) {
134        $id = $thread['id'];
135
136        $labels = array(
137                0 => $this->getLang('off'),
138                1 => $this->getLang('open'),
139                2 => $this->getLang('closed')
140                );
141        $title = p_get_metadata($id, 'title');
142        if (!$title) $title = $id;
143        ptln('<h2 name="'.$id.'" id="'.$id.'">'.hsc($title).'</h2>', 6);
144        ptln('<form method="post" action="'.wl($id).'">', 6);
145        ptln('<div class="mediaright">', 8);
146        ptln('<input type="hidden" name="do" value="admin" />', 10);
147        ptln('<input type="hidden" name="page" value="discussion" />', 10);
148        ptln($this->getLang('status').': <select name="status" size="1">', 10);
149        foreach ($labels as $key => $label) {
150            $selected = (($key == $thread['status']) ? ' selected="selected"' : '');
151            ptln('<option value="'.$key.'"'.$selected.'>'.$label.'</option>', 12);
152        }
153        ptln('</select> ', 10);
154        ptln('<input type="submit" class="button" name="comment" value="'.$this->getLang('btn_change').'" class"button" title="'.$this->getLang('btn_change').'" />', 10);
155        ptln('</div>', 8);
156        ptln('</form>', 6);
157        ptln('<div class="level2">', 6);
158        ptln('<a href="'.wl($id).'" class="wikilink1">'.$id.'</a> ', 8);
159        return true;
160    }
161
162    /**
163     * Returns the full comments data for a given wiki page
164     */
165    function _getComments(&$thread) {
166        $id = $thread['id'];
167
168        if (!$thread['file']) $thread['file'] = metaFN($id, '.comments');
169        if (!@file_exists($thread['file'])) return false; // no discussion thread at all
170
171        $data = unserialize(io_readFile($thread['file'], false));
172
173        $thread['status'] = $data['status'];
174        $thread['number'] = $data['number'];
175        if (!$data['status']) return false;   // comments are turned off
176        if (!$data['comments']) return false; // no comments
177
178        $result = array();
179        foreach ($data['comments'] as $cid => $comment) {
180            $this->_addComment($cid, $data, $result);
181        }
182
183        if (empty($result)) return false;
184        else return $result;
185    }
186
187    /**
188     * Recursive function to add the comment hierarchy to the result
189     */
190    function _addComment($cid, &$data, &$result, $parent = '', $level = 1) {
191        if (!is_array($data['comments'][$cid])) return; // corrupt datatype
192        $comment = $data['comments'][$cid];
193        if ($comment['parent'] != $parent) return;      // answer to another comment
194
195        // okay, add the comment to the result
196        $comment['id'] = $cid;
197        $comment['level'] = $level;
198        $result[] = $comment;
199
200        // check answers to this comment
201        if (count($comment['replies'])) {
202            foreach ($comment['replies'] as $rid) {
203                $this->_addComment($rid, $data, $result, $cid, $level + 1);
204            }
205        }
206    }
207
208    /**
209     * Checkbox and info about a comment item
210     */
211    function _commentItem($comment) {
212        global $conf;
213
214        // prepare variables
215        if (is_array($comment['user'])) { // new format
216            $name    = $comment['user']['name'];
217            $mail    = $comment['user']['mail'];
218        } else {                         // old format
219            $name    = $comment['name'];
220            $mail    = $comment['mail'];
221        }
222        if (is_array($comment['date'])) { // new format
223            $created  = $comment['date']['created'];
224        } else {                         // old format
225            $created  = $comment['date'];
226        }
227        $abstract = preg_replace('/\s+?/', ' ', strip_tags($comment['xhtml']));
228        if (utf8_strlen($abstract) > 160) $abstract = utf8_substr($abstract, 0, 160).'...';
229
230        return '<input type="checkbox" name="cid['.$comment['id'].']" value="1" /> '.
231            $this->email($mail, $name, 'email').', '.strftime($conf['dformat'], $created).': '.
232            '<span class="abstract">'.$abstract.'</span>';
233    }
234
235    /**
236     * list item tag
237     */
238    function _li_comment($comment) {
239        $show = ($comment['show'] ? '' : ' hidden');
240        return '<li class="level'.$comment['level'].$show.'">';
241    }
242
243    /**
244     * Show buttons to bulk remove, hide or show comments
245     */
246    function _actionButtons($id) {
247        global $lang;
248
249        ptln('<div class="comment_buttons">', 12);
250        ptln('<input type="submit" name="comment" value="'.$this->getLang('btn_show').'" class="button" title="'.$this->getLang('btn_show').'" />', 14);
251        ptln('<input type="submit" name="comment" value="'.$this->getLang('btn_hide').'" class="button" title="'.$this->getLang('btn_hide').'" />', 14);
252        ptln('<input type="submit" name="comment" value="'.$lang['btn_delete'].'" class="button" title="'.$lang['btn_delete'].'" />', 14);
253        ptln('</div>', 12); // class="comment_buttons"
254        ptln('</div>', 10); // class="no"
255        ptln('</form>', 8);
256        ptln('</div>', 6); // class="level2"
257        return true;
258    }
259
260    /**
261     * Displays links to older newer discussions
262     */
263    function _browseDiscussionLinks($more, $first, $num) {
264        global $ID;
265
266        if (($first == 0) && (!$more)) return true;
267
268        $params = array('do' => 'admin', 'page' => 'discussion');
269        $last = $first+$num;
270        ptln('<div class="level1">', 8);
271        if ($first > 0) {
272            $first -= $num;
273            if ($first < 0) $first = 0;
274            $params['first'] = $first;
275            ptln('<p class="centeralign">', 8);
276            $ret = '<a href="'.wl($ID, $params).'" class="wikilink1">&lt;&lt; '.$this->getLang('newer').'</a>';
277            if ($more) {
278                $ret .= ' | ';
279            } else {
280                ptln($ret, 10);
281                ptln('</p>', 8);
282            }
283        } else if ($more) {
284            ptln('<p class="centeralign">', 8);
285        }
286        if ($more) {
287            $params['first'] = $last;
288            $ret .= '<a href="'.wl($ID, $params).'" class="wikilink1">'.$this->getLang('older').' &gt;&gt;</a>';
289            ptln($ret, 10);
290            ptln('</p>', 8);
291        }
292        ptln('</div>', 6); // class="level1"
293        return true;
294    }
295
296    /**
297     * Changes the status of a comment
298     */
299    function _changeStatus($new) {
300        global $ID;
301
302        // get discussion meta file name
303        $file = metaFN($ID, '.comments');
304        $data = unserialize(io_readFile($file, false));
305
306        $old = $data['status'];
307        if ($old == $new) return true;
308
309        // save the comment metadata file
310        $data['status'] = $new;
311        io_saveFile($file, serialize($data));
312
313        // look for ~~DISCUSSION~~ command in page file and change it accordingly
314        $patterns = array('~~DISCUSSION:off\2~~', '~~DISCUSSION\2~~', '~~DISCUSSION:closed\2~~');
315        $replace = $patterns[$new];
316        $wiki = preg_replace('/~~DISCUSSION([\w:]*)(\|?.*?)~~/', $replace, rawWiki($ID));
317        saveWikiText($ID, $wiki, $this->getLang('statuschanged'), true);
318
319        return true;
320    }
321}
322// vim:ts=4:sw=4:et:enc=utf-8:
323