File Upload Class - MIME type detection error - 2.1.0

[eluser]Musaddiq Khan[/eluser]
Replace function is_allowed_filetype() in sysetem/libraries/Upload.php, It has worked for me.

Code:

public function is_allowed_filetype($ignore_mime = FALSE)
{
  if ($this->allowed_types == '*')
  {
   return TRUE;
  }
  //echo '$this->allowed types==>'.$this->allowed_types;
  if (count($this->allowed_types) == 0 OR ! is_array($this->allowed_types))
  {
   $this->set_error('upload_no_file_types');
   return FALSE;
  }

  $ext = strtolower(ltrim($this->file_ext, '.'));

  if ( ! in_array($ext, $this->allowed_types))
  {
   return FALSE;
  }

  // Images get some additional checks
  $image_types = array('gif', 'jpg', 'jpeg', 'png', 'jpe');

  if (in_array($ext, $image_types))
  {
   if (getimagesize($this->file_temp) === FALSE)
   {
    return FALSE;
   }
  }
  
  if ($ignore_mime === TRUE)
  {
   return TRUE;
  }
  $mime = $this->mimes_types($ext);
  
  if ($ext == 'png')
  {
   $mime[] = $ext;
   $this->file_type = $ext;
  }
  if (is_array($mime))
  {
   if (in_array($this->file_type, $mime, TRUE))
   {
    return TRUE;
   }
  }
  elseif ($mime == $this->file_type)
  {
    return TRUE;
  }

  return FALSE;
}