WebDAV HTTP authorization does not work

Problem:

• After trying to login to the WebDAV page of owncoud, the login window appears again and again.
• This problem occurs if PHP is used as a CGI module.

Solution:

• Change the Rewrite Rule of the .htaccess file to:

RewriteRule .* - [env=REMOTE_USER:%{HTTP:Authorization},last]

• Insert behind the following lines of the file /lib/base.php

//set http auth headers for apache+php-cgi work around if variable gets renamed by apache
if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['REDIRECT_HTTP_AUTHORIZATION'], $matches))
{
	list($name, $password) = explode(':', base64_decode($matches[1]));
	$_SERVER['PHP_AUTH_USER'] = strip_tags($name);
	$_SERVER['PHP_AUTH_PW'] = strip_tags($password);
}

this code snippet:

if (isset($_SERVER['REDIRECT_REMOTE_USER']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['REDIRECT_REMOTE_USER'], $matches))
{
	list($name, $password) = explode(':', base64_decode($matches[1]));
	$_SERVER['PHP_AUTH_USER'] = strip_tags($name);
	$_SERVER['PHP_AUTH_PW'] = strip_tags($password);
}

Note:

• For more details, see [1] and [2].