[horde] Sending HTTP 401 Unauthorized header response

[Arjen de Korte]

Citeren Arjen de Korte <build+horde at de-korte.org>:

> Possibly more log spam:
>
> 2019-01-04T13:23:44+01:00 ERR: horde Sending HTTP 401 Unauthorized  
> header response. [pid 1949 on line 126 of  
> "/usr/share/php7/PEAR/Horde/Rpc/ActiveSync.php"]
>
> Dumping $serverVars just a few lines before this line, it looks like  
> the client attempts to authenticate with type "Bearer" but there is  
> no token. I also see requests where the same client is using Basic  
> authentication with a base64 encoded username and password, which  
> works fine. The client in question is the built-in Windows 10 Mail  
> and synchronizes as usual.
>
> I've removed the account and recreated it, but the problem remains.

It occurs with multiple accounts, all using the Windows 10 Mail  
client. When logging the $serverVars['HTTP_AUTHORIZATION'] variable,  
they seem to come in pairs:

     2019-01-04T19:24:10+01:00 DEBUG: Variable information:
     string(50) "Basic XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX=="

     Backtrace:
     1. Horde_Rpc_ActiveSync->getResponse() /srv/www/htdocs/horde/rpc.php:160
     2. Horde::debug() /usr/share/php7/PEAR/Horde/Rpc/ActiveSync.php:120

     2019-01-04T19:24:26+01:00 DEBUG: Variable information:
     string(6) "Bearer"

     Backtrace:
     1. Horde_Rpc_ActiveSync->getResponse() /srv/www/htdocs/horde/rpc.php:160
     2. Horde::debug() /usr/share/php7/PEAR/Horde/Rpc/ActiveSync.php:120

Could it somehow be that no token is sent from the server to the  
client? Can I somehow log the token?