further checks on maximum storage length

git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@8667 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Meik Sievertsen 2008-06-21 16:05:02 +00:00
parent b8647dc952
commit 11f27bee84
4 changed files with 43 additions and 20 deletions

View file

@ -822,7 +822,7 @@ function tz_select($default = '', $truncate = false)
{ {
if ($truncate) if ($truncate)
{ {
$zone_trunc = truncate_string($zone, 50, false, '...'); $zone_trunc = truncate_string($zone, 50, 255, false, '...');
} }
else else
{ {

View file

@ -1066,8 +1066,16 @@ function extension_allowed($forum_id, $extension, &$extensions)
/** /**
* Truncates string while retaining special characters if going over the max length * Truncates string while retaining special characters if going over the max length
* The default max length is 60 at the moment * The default max length is 60 at the moment
* The maximum storage length is there to fit the string within the given length. The string may be further truncated due to html entities.
* For example: string given is 'a "quote"' (length: 9), would be a stored as 'a "quote"' (length: 19)
*
* @param string $string The text to truncate to the given length. String is specialchared.
* @param int $max_length Maximum length of string (multibyte character count as 1 char / Html entity count as 1 char)
* @param int $max_store_length Maximum character length of string (multibyte character count as 1 char / Html entity count as entity chars).
* @param bool $allow_reply Allow Re: in front of string
* @param string $append String to be appended
*/ */
function truncate_string($string, $max_length = 60, $allow_reply = true, $append = '') function truncate_string($string, $max_length = 60, $max_store_length = 255, $allow_reply = true, $append = '')
{ {
$chars = array(); $chars = array();
@ -1090,6 +1098,21 @@ function truncate_string($string, $max_length = 60, $allow_reply = true, $append
$stripped = true; $stripped = true;
} }
// Due to specialchars, we may not be able to store the string...
if (utf8_strlen($string) > $max_store_length)
{
// let's split again, we do not want half-baked strings where entities are split
$_chars = utf8_str_split(htmlspecialchars_decode($string));
$chars = array_map('utf8_htmlspecialchars', $_chars);
do
{
array_pop($chars);
$string = implode('', $chars);
}
while (utf8_strlen($string) > $max_store_length || !sizeof($chars));
}
if ($strip_reply) if ($strip_reply)
{ {
$string = 'Re: ' . $string; $string = 'Re: ' . $string;

View file

@ -1282,7 +1282,7 @@ function restore_config($schema)
// Most are... // Most are...
if (is_string($config_value)) if (is_string($config_value))
{ {
$config_value = truncate_string(utf8_htmlspecialchars($config_value), 255, false); $config_value = truncate_string(utf8_htmlspecialchars($config_value), 255, 255, false);
} }
set_config($config_name, $config_value); set_config($config_name, $config_value);

View file

@ -1651,7 +1651,7 @@ function submit_post($mode, $subject, $username, $topic_type, &$poll, &$data, $u
// Display edit info if edit reason given or user is editing his post, which is not the last within the topic. // Display edit info if edit reason given or user is editing his post, which is not the last within the topic.
if ($data['post_edit_reason'] || (!$auth->acl_get('m_edit', $data['forum_id']) && ($post_mode == 'edit' || $post_mode == 'edit_first_post'))) if ($data['post_edit_reason'] || (!$auth->acl_get('m_edit', $data['forum_id']) && ($post_mode == 'edit' || $post_mode == 'edit_first_post')))
{ {
$data['post_edit_reason'] = truncate_string($data['post_edit_reason'], 255, false); $data['post_edit_reason'] = truncate_string($data['post_edit_reason'], 255, 255, false);
$sql_data[POSTS_TABLE]['sql'] = array( $sql_data[POSTS_TABLE]['sql'] = array(
'post_edit_time' => $current_time, 'post_edit_time' => $current_time,