Open Cloud Mesh (OCM) / Federate with Owncloud 10

[denniskuehl]

Hi,

I'm trying to connect/mesh/federate OpenCloud 4.1.0 with Owncloud 10.16.0. When I try to register the OpenCloud in Owncloud -> Settings -> Admin -> Sharing -> Federation -> Add OwnCloud Server I get "Remote server version is too low. ownCloud 9.0 is required."

In the OpenCloud ocmproviders.json the Owncloud is configured like this:

      {
        "name": "ownCloud Test",
        "full_name": "ownCloud Test provider",
        "organization": "ownCloud",
        "domain": "lab-dk-lab.tux:8080",
        "homepage": "http://lab-dk-lab.tux:8080",
        "description": "ownCloud Example cloud storage",
        "services": [
            {
                "endpoint": {
                    "type": {
                        "name": "OCM",
                        "description": "lab-dk-lab.tux:8080 Open Cloud Mesh API"
                    },
                    "name": "lab-dk-lab.tux:8080 - OCM API",
                    "path": "http://lab-dk-lab.tux:8080/ocm/",
                    "is_monitored": true
                },
                "api_version": "1.1.0",
                "host": "http://lab-dk-lab.tux:8080"
            },
            {
                "endpoint": {
                    "type": {
                        "name": "Webdav",
                        "description": "lab-dk-lab.tux:8080 Webdav API"
                    },
                    "name": "lab-dk-lab.tux:8080 Example - Webdav API",
                    "path": "http://lab-dk-lab.tux:8080/dav/",
                    "is_monitored": true
                },
                "api_version": "1.1.0",
                "host": "http://lab-dk-lab.tux:8080/"
            }
        ]
    }

OpenCloud to OpenCloud works fine, so I assume, that the basic config is ok.

Can anybody point to the right direction?
Thanks in advance.

[rhafer]

Hm, owncloud is doing a request to status.php to check whether the remote is an owncloud instance (see: https://github.com/owncloud/core/blob/master/apps/federation/lib/Command/TrustedServerAdd.php#L65).

This request is AFAICT not part of the OCM spec. IMO it's a bug in owncloud. Nextcloud has similar code AFAICS (
https://github.com/nextcloud/server/blob/master/apps/federation/lib/TrustedServers.php#L152)

I guess we could return a fake response on the status.php that would make owncloud/nextcloud talk to opencloud. OTOH it would probably be more correct if owncloud/nextcloud would follow the specs.

cc @dragotin @butonic

[rhafer]

I guess we could return a fake response on the status.php

Hm, actually we even had that once. Removed it almost a year ago ...

[rhafer]

@denniskuehl I've move this to an issue: #2187

But, even with that fix, I wouldn't be surprised if federation with ownCloud would still not work. AFAICT the owncloud implementation of OCM is somewhat outdated and based on an older specification that what OpenCloud is providing.

[denniskuehl]

Thank you very much.