diff options
Diffstat (limited to 'phpBB/includes/message_parser.php')
| -rw-r--r-- | phpBB/includes/message_parser.php | 143 |
1 files changed, 121 insertions, 22 deletions
diff --git a/phpBB/includes/message_parser.php b/phpBB/includes/message_parser.php index 04a2726d22..e63f6b822b 100644 --- a/phpBB/includes/message_parser.php +++ b/phpBB/includes/message_parser.php @@ -21,6 +21,19 @@ if (!defined('IN_PHPBB')) if (!class_exists('bbcode')) { + // The following lines are for extensions which include message_parser.php + // while $phpbb_root_path and $phpEx are out of the script scope + // which may lead to the 'Undefined variable' and 'failed to open stream' errors + if (!isset($phpbb_root_path)) + { + global $phpbb_root_path; + } + + if (!isset($phpEx)) + { + global $phpEx; + } + include($phpbb_root_path . 'includes/bbcode.' . $phpEx); } @@ -115,6 +128,9 @@ class bbcode_firstpass extends bbcode // [quote] in second position. // To parse multiline URL we enable dotall option setting only for URL text // but not for link itself, thus [url][/url] is not affected. + // + // To perform custom validation in extension, use $this->validate_bbcode_by_extension() + // method which accepts variable number of parameters $this->bbcodes = array( 'code' => array('bbcode_id' => 8, 'regexp' => array('#\[code(?:=([a-z]+))?\](.+\[/code\])#uise' => "\$this->bbcode_code('\$1', '\$2')")), 'quote' => array('bbcode_id' => 0, 'regexp' => array('#\[quote(?:="(.*?)")?\](.+)\[/quote\]#uise' => "\$this->bbcode_quote('\$0')")), @@ -775,28 +791,6 @@ class bbcode_firstpass extends bbcode else if (preg_match('#^quote(?:="(.*?)")?$#is', $buffer, $m) && substr($out, -1, 1) == '[') { $this->parsed_items['quote']++; - - // the buffer holds a valid opening tag - if ($config['max_quote_depth'] && sizeof($close_tags) >= $config['max_quote_depth']) - { - if ($config['max_quote_depth'] == 1) - { - // Depth 1 - no nesting is allowed - $error_ary['quote_depth'] = $user->lang('QUOTE_NO_NESTING'); - } - else - { - // There are too many nested quotes - $error_ary['quote_depth'] = $user->lang('QUOTE_DEPTH_EXCEEDED', (int) $config['max_quote_depth']); - } - - $out .= $buffer . $tok; - $tok = '[]'; - $buffer = ''; - - continue; - } - array_push($close_tags, '/quote:' . $this->bbcode_uid); if (isset($m[1]) && $m[1]) @@ -1261,6 +1255,12 @@ class parse_message extends bbcode_firstpass return $update_this_message ? $this->warn_msg : $return_message; } + // Remove quotes that are nested too deep + if ($config['max_quote_depth'] > 0) + { + $this->remove_nested_quotes($config['max_quote_depth']); + } + // Check for "empty" message. We do not check here for maximum length, because bbcode, smilies, etc. can add to the length. // The maximum length check happened before any parsings. if ($mode === 'post' && utf8_clean_string($this->message) === '') @@ -1301,6 +1301,29 @@ class parse_message extends bbcode_firstpass $return_message = &$this->message; } + $text = $this->message; + $uid = $this->bbcode_uid; + + /** + * Event to modify the text before it is parsed + * + * @event core.modify_format_display_text_before + * @var string text The message text to parse + * @var string uid The bbcode uid + * @var bool allow_bbcode Do we allow bbcodes + * @var bool allow_magic_url Do we allow magic urls + * @var bool allow_smilies Do we allow smilies + * @var bool update_this_message Do we update the internal message + * with the parsed result + * @since 3.1.6-RC1 + */ + $vars = array('text', 'uid', 'allow_bbcode', 'allow_magic_url', 'allow_smilies', 'update_this_message'); + extract($phpbb_dispatcher->trigger_event('core.modify_format_display_text_before', compact($vars))); + + $this->message = $text; + $this->bbcode_uid = $uid; + unset($text, $uid); + if ($this->message_status == 'plain') { // Force updating message - of course. @@ -1840,6 +1863,50 @@ class parse_message extends bbcode_firstpass } /** + * Remove nested quotes at given depth in current parsed message + * + * @param integer $max_depth Depth limit + * @return null + */ + public function remove_nested_quotes($max_depth) + { + // Capture all [quote] and [/quote] tags + preg_match_all('(\\[/?quote(?:="(.*?)")?:' . $this->bbcode_uid . '\\])', $this->message, $matches, PREG_OFFSET_CAPTURE); + + // Iterate over the quote tags to mark the ranges that must be removed + $depth = 0; + $ranges = array(); + $start_pos = 0; + foreach ($matches[0] as $match) + { + if ($match[0][1] === '/') + { + --$depth; + if ($depth == $max_depth) + { + $end_pos = $match[1] + strlen($match[0]); + $length = $end_pos - $start_pos; + $ranges[] = array($start_pos, $length); + } + } + else + { + ++$depth; + if ($depth == $max_depth + 1) + { + $start_pos = $match[1]; + } + } + } + + foreach (array_reverse($ranges) as $range) + { + list($start_pos, $length) = $range; + $this->message = substr_replace($this->message, '', $start_pos, $length); + } + } + + /** * Setter function for passing the plupload object * * @param \phpbb\plupload\plupload $plupload The plupload object @@ -1862,4 +1929,36 @@ class parse_message extends bbcode_firstpass { $this->mimetype_guesser = $mimetype_guesser; } + + /** + * Function to perform custom bbcode validation by extensions + * can be used in bbcode_init() to assign regexp replacement + * Example: 'regexp' => array('#\[b\](.*?)\[/b\]#uise' => "\$this->validate_bbcode_by_extension('\$1')") + * + * Accepts variable number of parameters + * + * @return mixed Validation result + */ + public function validate_bbcode_by_extension() + { + global $phpbb_dispatcher; + + $return = false; + $params_array = func_get_args(); + + /** + * Event to validate bbcode with the custom validating methods + * provided by extensions + * + * @event core.validate_bbcode_by_extension + * @var array params_array Array with the function parameters + * @var mixed return Validation result to return + * + * @since 3.1.5-RC1 + */ + $vars = array('params_array', 'return'); + extract($phpbb_dispatcher->trigger_event('core.validate_bbcode_by_extension', compact($vars))); + + return $return; + } } |