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authorrvelices <rv-github@modusoptimus.com>2006-11-16 03:31:57 +0000
committerrvelices <rv-github@modusoptimus.com>2006-11-16 03:31:57 +0000
commit31e312028ca8a8a546558e21a2aa899f708386f5 (patch)
treefb8c86752d157de0c113e9a652f1a6737f9e4523 /include
parent221d839769ae15035397ab691a1bea8567b60ee0 (diff)
- bug fix: comments_forall and category commentable were not checked during
POST and a comment could be inserted - feature 524: anti-spam: - check number of links - check ip address against spamhaus.org block list - action when comment is qualified spam (needs validation or reject) - so far everything is in the config file git-svn-id: http://piwigo.org/svn/trunk@1610 68402e56-0260-453c-a942-63ccdbb3a9ee
Diffstat (limited to '')
-rw-r--r--include/config_default.inc.php11
-rw-r--r--include/picture_comment.inc.php228
2 files changed, 166 insertions, 73 deletions
diff --git a/include/config_default.inc.php b/include/config_default.inc.php
index b70b24e21..56c656451 100644
--- a/include/config_default.inc.php
+++ b/include/config_default.inc.php
@@ -86,6 +86,17 @@ $conf['top_number'] = 15;
// anti-flood_time : number of seconds between 2 comments : 0 to disable
$conf['anti-flood_time'] = 60;
+// qualified spam comments are not registered (false will register them
+// but they will require admin validation)
+$conf['comment_spam_reject'] = true;
+
+// maximum number of links in a comment before it is qualified spam
+$conf['comment_spam_max_links'] = 3;
+
+// if the ip address of a comenteer is in spamhaus.org block list, the
+// comment is qualified spam
+$conf['comment_spam_check_ip'] = false;
+
// calendar_datefield : date field of table "images" used for calendar
// catgory
$conf['calendar_datefield'] = 'date_creation';
diff --git a/include/picture_comment.inc.php b/include/picture_comment.inc.php
index 679f6287f..ed8818ff4 100644
--- a/include/picture_comment.inc.php
+++ b/include/picture_comment.inc.php
@@ -29,96 +29,185 @@
* This file is included by the picture page to manage user comments
*
*/
+//returns string action to perform on a new comment: validate, moderate, reject
+function user_comment_check($action, $comment, $picture)
+{
+ global $conf,$user;
+
+ if ($action=='reject')
+ return $action;
+
+ $my_action = $conf['comment_spam_reject'] ? 'reject':'moderate';
+ if ($action==$my_action)
+ return $action;
+
+ // we do here only BASIC spam check (plugins can do more)
+ if ( !$user['is_the_guest'] )
+ return $action;
+
+ $link_count = preg_match_all( '/https?:\/\//',
+ $comment['content'], $matches);
+
+ if ( $link_count>$conf['comment_spam_max_links'] )
+ return $my_action;
+
+ if ( isset($comment['ip']) and $conf['comment_spam_check_ip'] )
+ {
+ $rev_ip = implode( '.', array_reverse( explode('.',$comment['ip']) ) );
+ $lookup = $rev_ip . '.sbl-xbl.spamhaus.org.';
+ $res = gethostbyname( $lookup );
+ if ( $lookup != $res )
+ return $my_action;
+ }
+
+ return $action;
+}
-if ( isset( $_POST['content'] ) and !empty($_POST['content']) )
+
+
+add_event_handler('user_comment_check', 'user_comment_check',
+ EVENT_HANDLER_PRIORITY_NEUTRAL, 3);
+
+
+// the picture is commentable if it belongs at least to one category which
+// is commentable
+$page['show_comments'] = false;
+foreach ($related_categories as $category)
{
- $register_comment = true;
- $author = !empty($_POST['author'])?$_POST['author']:$lang['guest'];
- // if a guest try to use the name of an already existing user, he must be
- // rejected
- if ( $author != $user['username'] )
+ if ($category['commentable'] == 'true')
{
- $query = 'SELECT COUNT(*) AS user_exists';
- $query.= ' FROM '.USERS_TABLE;
- $query.= ' WHERE '.$conf['user_fields']['username']." = '".$author."'";
- $query.= ';';
- $row = mysql_fetch_array( pwg_query( $query ) );
- if ( $row['user_exists'] == 1 )
+ $page['show_comments'] = true;
+ break;
+ }
+}
+
+if ( $page['show_comments'] and isset( $_POST['content'] ) )
+{
+ if ( $user['is_the_guest'] and !$conf['comments_forall'] )
+ {
+ die ('Session expired');
+ }
+ if (!$conf['comments_validation'] or is_admin())
+ {
+ $comment_action='validate'; //one of validate, moderate, reject
+ }
+ else
+ {
+ $comment_action='moderate'; //one of validate, moderate, reject
+ }
+
+ $_POST['content'] = trim( stripslashes($_POST['content']) );
+
+ if ( $user['is_the_guest'] )
+ {
+ $author = empty($_POST['author'])?'guest':$_POST['author'];
+ // if a guest try to use the name of an already existing user, he must be
+ // rejected
+ if ( $author != 'guest' )
{
- $template->assign_block_vars(
- 'information',
- array('INFORMATION'=>$lang['comment_user_exists']));
- $register_comment = false;
+ $query = 'SELECT COUNT(*) AS user_exists';
+ $query.= ' FROM '.USERS_TABLE;
+ $query.= ' WHERE '.$conf['user_fields']['username']." = '".$author."'";
+ $query.= ';';
+ $row = mysql_fetch_assoc( pwg_query( $query ) );
+ if ( $row['user_exists'] == 1 )
+ {
+ $template->assign_block_vars(
+ 'information',
+ array('INFORMATION'=>$lang['comment_user_exists']));
+ $comment_action='reject';
+ }
}
}
-
- if ( $register_comment )
+ else
{
- // anti-flood system
+ $author = $user['username'];
+ }
+
+ $comm = array(
+ 'author' => $author,
+ 'content' => $_POST['content'],
+ 'image_id' => $page['image_id'],
+ 'ip' => $_SERVER['REMOTE_ADDR'],
+ 'agent' => $_SERVER['HTTP_USER_AGENT']
+ );
+
+ if ($comment_action!='reject' and empty($comm['content']) )
+ { // empty comment content
+ $comment_action='reject';
+ }
+
+ if ($comment_action!='reject' and $conf['anti-flood_time']>0 )
+ { // anti-flood system
$reference_date = time() - $conf['anti-flood_time'];
$query = 'SELECT id FROM '.COMMENTS_TABLE;
$query.= ' WHERE date > FROM_UNIXTIME('.$reference_date.')';
- $query.= " AND author = '".$author."'";
+ $query.= " AND author = '".$comm['author']."'";
$query.= ';';
- if ( mysql_num_rows( pwg_query( $query ) ) == 0
- or $conf['anti-flood_time'] == 0 )
+ if ( mysql_num_rows( pwg_query( $query ) ) > 0 )
{
- list($dbnow) = mysql_fetch_row(pwg_query('SELECT NOW();'));
-
- $data = array();
- $data{'author'} = $author;
- $data{'date'} = $dbnow;
- $data{'image_id'} = $page['image_id'];
- $data{'content'} = htmlspecialchars( $_POST['content'], ENT_QUOTES);
-
- if (!$conf['comments_validation'] or is_admin())
- {
- $data{'validated'} = 'true';
- $data{'validation_date'} = $dbnow;
- }
- else
- {
- $data{'validated'} = 'false';
- }
+ $template->assign_block_vars(
+ 'information',
+ array('INFORMATION'=>$lang['comment_anti-flood']));
+ $comment_action='reject';
+ }
+ }
- include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
- $fields = array('author', 'date', 'image_id', 'content', 'validated',
- 'validation_date');
- mass_inserts(COMMENTS_TABLE, $fields, array($data));
+ // perform more spam check
+ $comment_action = trigger_event('user_comment_check',
+ $comment_action, $comm, $picture['current']
+ );
- // information message
- $message = $lang['comment_added'];
+ if ( $comment_action!='reject' )
+ {
+ list($dbnow) = mysql_fetch_row(pwg_query('SELECT NOW();'));
- if (!$conf['comments_validation'] or is_admin())
+ $data = $comm;
+ $data['date'] = $dbnow;
+ $data['content'] = addslashes(
+ // this htmlpsecialchars is not good here
+ htmlspecialchars($comm['content'],ENT_QUOTES)
+ );
- if ( $conf['comments_validation'] and !is_admin() )
- {
- $message.= '<br />'.$lang['comment_to_validate'];
- }
- $template->assign_block_vars('information',
- array('INFORMATION'=>$message));
+ if ($comment_action=='validate')
+ {
+ $data['validated'] = 'true';
+ $data['validation_date'] = $dbnow;
}
else
{
- // information message
- $template->assign_block_vars(
- 'information',
- array('INFORMATION'=>$lang['comment_anti-flood']));
+ $data['validated'] = 'false';
}
- }
-}
-// the picture is commentable if it belongs at least to one category which
-// is commentable
-$page['show_comments'] = false;
-foreach ($related_categories as $category)
-{
- if ($category['commentable'] == 'true')
+ include_once(PHPWG_ROOT_PATH.'admin/include/functions.php');
+ $fields = array('author', 'date', 'image_id', 'content', 'validated',
+ 'validation_date');
+ mass_inserts(COMMENTS_TABLE, $fields, array($data));
+ $comm['id'] = mysql_insert_id();
+
+ // information message
+ $message = $lang['comment_added'];
+ if ($comment_action!='validate')
+ {
+ $message.= '<br />'.$lang['comment_to_validate'];
+ }
+ $template->assign_block_vars('information',
+ array('INFORMATION'=>$message));
+ }
+ else
{
- $page['show_comments'] = true;
+ $template->assign_block_vars('information',
+ array('INFORMATION'=>l10n('comment_not_added') )
+ );
}
+
+ // allow plugins to notify what's going on
+ trigger_action( 'user_comment_insertion',
+ array_merge($comm, array('action'=>$comment_action) )
+ );
}
+
if ($page['show_comments'])
{
// number of comment for this picture
@@ -204,14 +293,7 @@ SELECT id,author,date,image_id,content
{
$template->assign_block_vars('comments.add_comment', array());
// display author field if the user is not logged in
- if (!$user['is_the_guest'])
- {
- $template->assign_block_vars(
- 'comments.add_comment.author_known',
- array('KNOWN_AUTHOR'=>$user['username'])
- );
- }
- else
+ if ($user['is_the_guest'])
{
$template->assign_block_vars(
'comments.add_comment.author_field', array()