/**
* Create thumbnail of image.
* @param string $source Source image.
* @param string $dest Thumbnail path.
* @param array $source_dimensions Source image dimensions.
* @param array $type Image file type.
* @param int $resize_x Thumbnail width.
* @param int $resize_y Thumbnail height.
* @return array|boolean
* thumbnail dimensions or FALSE if any error occurred. Also in case of error
* set last error to appropriate error object.
*/
function create_thumbnail($source, $dest, $source_dimensions, $type, $resize_x, $resize_y)
{
$result = array();
// small image doesn't need to be thumbnailed
if ($source_dimensions['x'] < $resize_x && $source_dimensions['y'] < $resize_y) {
// big file but small image is some kind of trolling
if (filesize($source) > Config::SMALLIMAGE_LIMIT_FILE_SIZE) {
kotoba_set_last_error(new MaxSmallImgSizeError());
return FALSE;
}
$result['x'] = $source_dimensions['x'];
$result['y'] = $source_dimensions['y'];
link_file($source, $dest);
return $result;
}
return $type['upload_handler_name']($source, $dest, $source_dimensions, $type, $resize_x, $resize_y);
}
/**
* Load user settings.
* @param MySQLi $link Link to database.
* @param string $keyword Keyword hash.
* @return array|boolean Returns array of user settings or boolean FALSE if any
* error occurred and set last error to appropriate error object.
*/
function db_users_get_by_keyword($link, $keyword)
{
$query = "call sp_users_get_by_keyword('{$keyword}')";
if (mysqli_multi_query($link, $query) == FALSE) {
throw new DBException(mysqli_error($link));
}
// User settings.
if (($result = mysqli_store_result($link)) == FALSE) {
throw new DBException(mysqli_error($link));
}
if (($row = mysqli_fetch_assoc($result)) !== NULL) {
$user_settings['id'] = $row['id'];
$user_settings['posts_per_thread'] = $row['posts_per_thread'];
$user_settings['threads_per_page'] = $row['threads_per_page'];
$user_settings['lines_per_post'] = $row['lines_per_post'];
$user_settings['language'] = $row['language'];
$user_settings['stylesheet'] = $row['stylesheet'];
$user_settings['password'] = $row['password'];
$user_settings['goto'] = $row['goto'];
} else {
kotoba_set_last_error(new UserNotExistsError($keyword));
return FALSE;
}
mysqli_free_result($result);
if (!mysqli_next_result($link)) {
throw new DBException(mysqli_error($link));
}
// Groups.
if (($result = mysqli_store_result($link)) == FALSE) {
throw new DBException(mysqli_error($link));
}
$user_settings['groups'] = array();
while (($row = mysqli_fetch_assoc($result)) !== NULL) {
array_push($user_settings['groups'], $row['name']);
}
if (count($user_settings['groups']) <= 0) {
throw new UserWithoutGroupException($user_settings['id']);
}
// Cleanup.
mysqli_free_result($result);
db_cleanup_link($link);
return $user_settings;
}
/**
* Check youtube video code.
* @param string $code Code of vide.
* @return string|boolean
* safe code of video or FALSE if file link too long and set last error to
* appropriate error value.
*/
function videos_check_code($code)
{
$code = RawURLEncode($code);
if (strlen($code) > Config::MAX_FILE_LINK) {
kotoba_set_last_error(new MaxFileLinkError());
return FALSE;
}
return RawURLEncode($code);
}