Incorrect handling of unlimited/unknown disk quota

[icewind1991]

Some external storage backend either don't provide quota information or provide unlimited storage.

When quota information is requested for such a storage oC will return -2 for unknown free space and -3 for unlimited free space (-1 is for not computed).

The sync client does't handle these values and shows the quota being full in the user interface

[dragotin]

To get quota information, the client does this kind of request:

<?xml version='1.0' encoding='UTF-8'?> 
<d:propfind xmlns:d="DAV:">
   <d:prop>
     <d:quota-available-bytes/>
     <d:quota-used-bytes/>
   </d:prop>
</d:propfind>

which would typically be answered like this:

<?xml version='1.0' encoding='utf-8'?>
<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:oc="http://owncloud.org/ns">
  <d:response>
    <d:href>/oc/remote.php/webdav/</d:href>
    <d:propstat>
      <d:prop>
        <oc:id>00000009ocsutmmj6g6t</oc:id>
        <oc:permissions>RDNVCK</oc:permissions>
        <oc:size>208659510</oc:size>
        <d:quota-available-bytes>1055690</d:quota-available-bytes>
        <d:quota-used-bytes>208659510</d:quota-used-bytes>
      </d:prop>
      <d:status>HTTP/1.1 200 OK</d:status>
    </d:propstat>
  </d:response>
</d:multistatus>

Where would the -1, -2 or -3 show up? As a quota value?
@icewind1991

[icewind1991]

<?xml version="1.0" encoding="utf-8"?>
<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:oc="http://owncloud.org/ns">
  <d:response>
    <d:href>/owncloud/remote.php/webdav/</d:href>
    <d:propstat>
      <d:prop>
        <d:quota-available-bytes>-3</d:quota-available-bytes>
        <d:quota-used-bytes>15192979931</d:quota-used-bytes>
      </d:prop>
      <d:status>HTTP/1.1 200 OK</d:status>
    </d:propstat>
  </d:response>
</d:multistatus>

[ogoffart]

I tested by hardcoding the value in the code. I don't know how to ge the server to actually return these special values

[icewind1991]

Now works as expected, thanks