source: extensions/Comments_on_Albums/include/functions_comment.inc.php @ 15640

Revision 15640, 10.6 KB checked in by mistic100, 8 years ago (diff)
  • sql bug comments page
  • add trigger_action for other plugins
Line 
1<?php
2/* This is a copy of include/functions_comment.inc.php but adapted for Comments On Albums */
3
4//returns string action to perform on a new comment: validate, moderate, reject
5function user_comment_check_albums($action, $comment)
6{
7  global $conf,$user;
8
9  if ($action=='reject')
10  return $action;
11
12  $my_action = $conf['comment_spam_reject'] ? 'reject':'moderate';
13
14  if ($action==$my_action)
15  return $action;
16
17  // we do here only BASIC spam check (plugins can do more)
18  if ( !is_a_guest() )
19  return $action;
20
21  $link_count = preg_match_all( '/https?:\/\//',
22  $comment['content'], $matches);
23
24  if ( strpos($comment['author'], 'http://')!==false )
25  {
26  $link_count++;
27  }
28
29  if ( $link_count>$conf['comment_spam_max_links'] )
30  return $my_action;
31
32  return $action;
33}
34
35add_event_handler('user_comment_check_albums', 'user_comment_check_albums',
36  EVENT_HANDLER_PRIORITY_NEUTRAL, 2);
37
38/**
39 * Tries to insert a user comment in the database and returns one of :
40 * validate, moderate, reject
41 * @param array comm contains author, content, category_id
42 * @param string key secret key sent back to the browser
43 * @param array infos out array of messages
44 */
45function insert_user_comment_albums( &$comm, $key, &$infos )
46{
47  global $conf, $user;
48
49  $comm = array_merge( $comm,
50    array(
51      'ip' => $_SERVER['REMOTE_ADDR'],
52      'agent' => $_SERVER['HTTP_USER_AGENT']
53    )
54   );
55
56  $infos = array();
57  if (!$conf['comments_validation'] or is_admin())
58  {
59    $comment_action='validate'; //one of validate, moderate, reject
60  }
61  else
62  {
63    $comment_action='moderate'; //one of validate, moderate, reject
64  }
65
66  // display author field if the user status is guest or generic
67  if (!is_classic_user())
68  {
69    if ( empty($comm['author']) )
70    {
71      $comm['author'] = 'guest';
72    }
73    $comm['author_id'] = $conf['guest_id'];
74    // if a guest try to use the name of an already existing user, he must be
75    // rejected
76    if ( $comm['author'] != 'guest' )
77    {
78      $query = '
79SELECT COUNT(*) AS user_exists
80  FROM '.USERS_TABLE.'
81  WHERE '.$conf['user_fields']['username']." = '".addslashes($comm['author'])."'";
82      $row = pwg_db_fetch_assoc( pwg_query( $query ) );
83      if ( $row['user_exists'] == 1 )
84      {
85        array_push($infos, l10n('This login is already used by another user') );
86        $comment_action='reject';
87      }
88    }
89  }
90  else
91  {
92    $comm['author'] = addslashes($user['username']);
93    $comm['author_id'] = $user['id'];
94  }
95
96  if ( empty($comm['content']) )
97  { // empty comment content
98    $comment_action='reject';
99  }
100
101  if ( !verify_ephemeral_key(@$key, $comm['category_id']) )
102  {
103    $comment_action='reject';
104    $_POST['cr'][] = 'key';
105  }
106
107  if ($comment_action!='reject' and $conf['anti-flood_time']>0 and !is_admin())
108  { // anti-flood system
109    $reference_date = pwg_db_get_flood_period_expression($conf['anti-flood_time']);
110
111    $query = '
112SELECT count(1) FROM '.COA_TABLE.'
113  WHERE date > '.$reference_date.'
114    AND author_id = '.$comm['author_id'];
115    list($counter) = pwg_db_fetch_row(pwg_query($query));
116    if ( $counter > 0 )
117    {
118      array_push( $infos, l10n('Anti-flood system : please wait for a moment before trying to post another comment') );
119      $comment_action='reject';
120    }
121  }
122
123  // perform more spam check
124  $comment_action = trigger_event('user_comment_check_albums',
125      $comment_action, $comm
126    );
127
128  if ( $comment_action!='reject' )
129  {
130    $query = '
131INSERT INTO '.COA_TABLE.'
132  (author, author_id, content, date, validated, validation_date, category_id)
133  VALUES (
134    \''.$comm['author'].'\',
135    '.$comm['author_id'].',
136    \''.$comm['content'].'\',
137    NOW(),
138    \''.($comment_action=='validate' ? 'true':'false').'\',
139    '.($comment_action=='validate' ? 'NOW()':'NULL').',
140    '.$comm['category_id'].'
141  )
142';
143
144    pwg_query($query);
145
146    $comm['id'] = pwg_db_insert_id(COA_TABLE);
147
148    if ( ($conf['email_admin_on_comment'] && 'validate' == $comment_action)
149        or ($conf['email_admin_on_comment_validation'] and 'moderate' == $comment_action))
150    {
151      include_once(PHPWG_ROOT_PATH.'include/functions_mail.inc.php');
152
153      $comment_url = get_absolute_root_url().'comments.php?display_mode=albums&comment_id='.$comm['id'];
154
155      $keyargs_content = array
156      (
157        get_l10n_args('Author: %s', stripslashes($comm['author']) ),
158        get_l10n_args('Comment: %s', stripslashes($comm['content']) ),
159        get_l10n_args('', ''),
160        get_l10n_args('Manage this user comment: %s', $comment_url)
161      );
162
163      if ('moderate' == $comment_action)
164      {
165        $keyargs_content[] = get_l10n_args('', '');
166        $keyargs_content[] = get_l10n_args('(!) This comment requires validation', '');
167      }
168
169      pwg_mail_notification_admins
170      (
171        get_l10n_args('Comment by %s', stripslashes($comm['author']) ),
172        $keyargs_content
173      );
174    }
175  }
176  return $comment_action;
177}
178
179/**
180 * Tries to delete a user comment in the database
181 * only admin can delete all comments
182 * other users can delete their own comments
183 * so to avoid a new sql request we add author in where clause
184 *
185 * @param comment_id
186 */
187function delete_user_comment_albums($comment_id) 
188{
189  $user_where_clause = '';
190  if (!is_admin())
191  {
192    $user_where_clause = '   AND author_id = \''.$GLOBALS['user']['id'].'\'';
193  }
194 
195  if (is_array($comment_id))
196    $where_clause = 'id IN('.implode(',', $comment_id).')';
197  else
198    $where_clause = 'id = '.$comment_id;
199 
200  $query = '
201DELETE FROM '.COA_TABLE.'
202  WHERE '.$where_clause.
203$user_where_clause.'
204;';
205  $result = pwg_query($query);
206 
207  if ($result) 
208  {
209    email_admin('delete', 
210                array('author' => $GLOBALS['user']['username'],
211                      'comment_id' => $comment_id
212                  ));
213  }
214 
215  trigger_action('user_comment_deletion', $comment_id, 'category');
216}
217
218/**
219 * Tries to update a user comment in the database
220 * only admin can update all comments
221 * users can edit their own comments if admin allow them
222 * so to avoid a new sql request we add author in where clause
223 *
224 * @param comment_id
225 * @param post_key
226 * @param content
227 */
228function update_user_comment_albums($comment, $post_key)
229{
230  global $conf;
231
232  $comment_action = 'validate';
233
234  if ( !verify_ephemeral_key($post_key, $comment['category_id']) )
235  {
236    $comment_action='reject';
237  }
238  elseif (!$conf['comments_validation'] or is_admin()) // should the updated comment must be validated
239  {
240    $comment_action='validate'; //one of validate, moderate, reject
241  }
242  else
243  {
244    $comment_action='moderate'; //one of validate, moderate, reject
245  }
246
247  // perform more spam check
248  $comment_action =
249    trigger_event('user_comment_check_albums',
250      $comment_action,
251      array_merge($comment,
252            array('author' => $GLOBALS['user']['username'])
253            )
254      );
255
256  if ( $comment_action!='reject' )
257  {
258    $user_where_clause = '';
259    if (!is_admin())
260    {
261      $user_where_clause = '   AND author_id = \''.
262  $GLOBALS['user']['id'].'\'';
263    }
264
265    $query = '
266UPDATE '.COA_TABLE.'
267  SET content = \''.$comment['content'].'\',
268      validated = \''.($comment_action=='validate' ? 'true':'false').'\',
269      validation_date = '.($comment_action=='validate' ? 'NOW()':'NULL').'
270  WHERE id = '.$comment['comment_id'].
271$user_where_clause.'
272;';
273    $result = pwg_query($query);
274   
275    // mail admin and ask to validate the comment
276    if ($result and $conf['email_admin_on_comment_validation'] and 'moderate' == $comment_action) 
277    {
278      include_once(PHPWG_ROOT_PATH.'include/functions_mail.inc.php');
279
280      $comment_url = get_absolute_root_url().'comments.php?display_mode=albums&amp;comment_id='.$comment['comment_id'];
281
282      $keyargs_content = array
283      (
284        get_l10n_args('Author: %s', stripslashes($GLOBALS['user']['username']) ),
285        get_l10n_args('Comment: %s', stripslashes($comment['content']) ),
286        get_l10n_args('', ''),
287        get_l10n_args('Manage this user comment: %s', $comment_url),
288        get_l10n_args('', ''),
289        get_l10n_args('(!) This comment requires validation', ''),
290      );
291
292      pwg_mail_notification_admins
293      (
294        get_l10n_args('Comment by %s', stripslashes($GLOBALS['user']['username']) ),
295        $keyargs_content
296      );
297    }
298    // just mail admin
299    else if ($result)
300    {
301      email_admin('edit', array('author' => $GLOBALS['user']['username'],
302        'content' => stripslashes($comment['content'])) );
303    }
304  }
305 
306  return $comment_action;
307}
308
309if (!function_exists('email_admin')) 
310{
311  function email_admin($action, $comment)
312  {
313    global $conf;
314
315    if (!in_array($action, array('edit', 'delete'))
316      or (($action=='edit') and !$conf['email_admin_on_comment_edition'])
317      or (($action=='delete') and !$conf['email_admin_on_comment_deletion']))
318    {
319    return;
320    }
321
322    include_once(PHPWG_ROOT_PATH.'include/functions_mail.inc.php');
323
324    $keyargs_content = array();
325    $keyargs_content[] = get_l10n_args('Author: %s', $comment['author']);
326    if ($action=='delete')
327    {
328    $keyargs_content[] = get_l10n_args('This author removed the comment with id %d',
329               $comment['comment_id']
330               );
331    }
332    else
333    {
334    $keyargs_content[] = get_l10n_args('This author modified following comment:', '');
335    $keyargs_content[] = get_l10n_args('Comment: %s', $comment['content']);
336    }
337
338    pwg_mail_notification_admins(get_l10n_args('Comment by %s',
339               $comment['author']),
340             $keyargs_content
341             );
342  }
343}
344
345function get_comment_author_id_albums($comment_id, $die_on_error=true)
346{
347  $query = '
348SELECT
349    author_id
350  FROM '.COA_TABLE.'
351  WHERE id = '.$comment_id.'
352;';
353  $result = pwg_query($query);
354  if (pwg_db_num_rows($result) == 0)
355  {
356    if ($die_on_error)
357    {
358      fatal_error('Unknown comment identifier');
359    }
360    else
361    {
362      return false;
363    }
364  }
365 
366  list($author_id) = pwg_db_fetch_row($result);
367
368  return $author_id;
369}
370
371/**
372 * Tries to validate a user comment in the database
373 * @param int or array of int comment_id
374 */
375function validate_user_comment_albums($comment_id)
376{
377  if (is_array($comment_id))
378    $where_clause = 'id IN('.implode(',', $comment_id).')';
379  else
380    $where_clause = 'id = '.$comment_id;
381   
382  $query = '
383UPDATE '.COA_TABLE.'
384  SET validated = \'true\'
385    , validation_date = NOW()
386  WHERE '.$where_clause.'
387;';
388  pwg_query($query);
389 
390  trigger_action('user_comment_validation', $comment_id, 'category');
391}
392?>
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