Nextcloud – Page 2

Both, Nextcloud and Collabora, are recommending the Docker installation for Collaboraoffice (here and here). But I wasn’t able to get the Collabora Docker Image running succesfully inside an Debian Buster LXC. There were appearing some errors and as far as I understand, it has something to do with running an LXC on ZFS. After spending about 3 hours I gave up and did a manual installation.

Installation

For a current installation guide, have look on their website here.
Install https support for apt and add Collabora CODE repository. (CODE = Collabora Online Development Edition)

sudo apt install apt-transport-https ca-certificates
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 0C54D189F4BA284D

Add the Collabora CODE repository to the apt sources list.

nano /etc/apt/sources.list.d/collabora.list

Add the following line for Debian Buster:

deb https://www.collaboraoffice.com/repos/CollaboraOnline/CODE-debian10 ./

Now update the repository and install Collabora. (lool = LibreOffice OnLine)

sudo apt update
sudo apt install loolwsd code-brand

Configuration

You have to edit three sections in the config: SSL handling, inserting your Nextcloud domain as WOPI client and add some credentials for webinterface. So open the config with:

nano /etc/loolwsd/loolwsd.xml

If you are using a reverse proxy (I have running a docker with nginx) which is managing all SSL certifactes, you don’t need local certifactes for your Collaboraoffice. So scroll down to the SSL settings, disable SSL and enable SSL termination.

   <ssl desc="SSL settings">
        <enable type="bool" desc="Controls whether SSL encryption is enable (do not disable for production deployment). If default is false, must first be compiled with SSL support to enable." default="true">false</enable>
        <termination desc="Connection via proxy where loolwsd acts as working via https, but actually uses https." type="bool" default="true">true</termination>

2. Next add you Nextcloud domain in the WOPI storage section.

    <storage desc="Backend storage">
        <filesystem allow="false" />
        <wopi desc="Allow/deny wopi storage. Mutually exclusive with webdav." allow="true">
            <host desc="Regex pattern of hostname to allow or deny." allow="true">localhost</host>
            <host desc="Regex pattern of hostname to allow or deny." allow="true">nextcloud\.domain\.org</host>

3. Add your credentials fot the webinterface.

  <admin_console desc="Web admin console settings.">
        <enable desc="Enable the admin console functionality" type="bool" default="true">true</enable>
        <enable_pam desc="Enable admin user authentication with PAM" type="bool" default="false">false</enable_pam>
        <username desc="The username of the admin console. Ignored if PAM is enabled.">user_name</username>
        <password desc="The password of the admin console. Deprecated on most platforms. Instead, use PAM or loolconfig to set up a secure password.">super_secret_password</password>

Now restart loolwsd and check the status.

systemctl restart loolwsd.service
systemctl status loolwsd.service

Check if the https connection is working via browser https://ipaddress:9980 or curl:

curl -vkI https://localhost:9980

You can reach the webinterface with:

https://ipaddress:9980/loleaflet/dist/admin/admin.html

Reverse Proxy

Go to your reverse proxy, in my case it’s nginx proxy manager, and add another subdomain for collabora with an SSL certificate.

You also have to add a few custom locations. Look at the Collabora website for the some nginx configs. I used the second with “SSL terminates at the proxy”. I also added the given custom locations via the webui, e.g.:

You should now be able to reach Collabora through your new subdomain via https.
https://collabora.your.domain.org/
And if you added /lool/adminws in your nginx config, you can also access the webui.
https://collabora.your.domain.org/loleaflet/dist/admin/admin.html

Install & configure Collabora Online App in Nextcloud

The easiest part is to install the Collabora Online App.
If done, go to Settings -> Collabora Online and set your Collabora Domain https://collabora.your.domain.org/ in here. Apply and edit your first excel in Nextcloud.

Done! 🙂

Enable JWT token

Add a Token in you local.json file. If your running ONLYOFFICE on linux you will find the file here:

/etc/onlyoffice/documentserver/local.json

Set inbox, outbox and browser to true and add you token in the secret part for inbox, outbox and session. I just generated a random string via Bitwarden.

   "token": {
        "enable": {
          "request": {
            "inbox": true,
            "outbox": true
          },
          "browser": true
        },
        "inbox": {
          "header": "Authorization"
        },
        "outbox": {
          "header": "Authorization"
        }
      },
      "secret": {
        "inbox": {
          "string": "token_string"
        },
        "outbox": {
          "string": "token_string"
        },
        "session": {
          "string": "token_string"
        }

Save the file and run:

supervisorctl restart all

Go to your Nextcloud web interface, open your ONLYOFFICE App and add your token beneath your server url.

Configure IP Filter

Search in the following file for “ipfilter”:

/etc/onlyoffice/documentserver/default.json

Add you domain or IP to the IP rules. Disallow everything else. Use * as wildcard. Also set useforrequest to true.

"ipfilter": {
              "rules": [{"address": "url_or_ip", "allowed": true},
                        {"address": "*",         "allowed": false}],
              "useforrequest": true,
              "errorcode": 403
            },

Now run again:

supervisorctl restart all

And test if the service is reachable.

Category: Nextcloud

[Nextcloud] Installing Collaboraoffice in LXC