If you find Zimbra WebDAV Client useful and want to support its continued development, you can make donations via:

• PayPal: [email protected]
• Bank transfer: IBAN NL55ABNA0623226413 ; BIC ABNANL2A

Demo video: https://www.youtube.com/watch?v=8pVMoXkNt8c

User manual : https://barrydegraaff.github.io/owncloud/

Integrate any WebDAV server in Zimbra Collaboration, currently tested with ownCloud 9.1, Nextcloud 15-16, Alfresco Enterprise - 5.2.0 and Nuxeo.

Supported Zimbra versions 8.8.12.

Zimbra Desktop is not supported and does not work. Ubuntu 12.04 is not supported (https://github.com/Zimbra-Community/owncloud-zimlet/issues/117) If you have trouble installing on Ubuntu see below on the known issues.

Bugs and feedback: https://github.com/Zimbra-Community/owncloud-zimlet/issues

Report security issues to [email protected] (PGP fingerprint: 97f4694a1d9aedad012533db725ddd156d36a2d0)

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• A running Zimbra server
• A running WebDAV server (for example ownCloud/Nextcloud)

wget --no-cache https://raw.githubusercontent.com/Zimbra-Community/owncloud-zimlet/soapServiceBarry/webdav-client-installer.sh -O /tmp/webdav-client-installer.sh
chmod +rx /tmp/webdav-client-installer.sh

The zimlet and extensions support multi server ZCS cluster setups where proxies and mailboxes are in different machines. The zimlet and extensions should only be installed on the mailbox servers. The zimlet and extensions must be installed on all of your mailbox servers (refer to the Installing section).

/tmp/webdav-client-installer.sh 
[zimbra@server zimbra]$ zmmailboxdctl restart

/tmp/webdav-client-installer.sh --auto
[zimbra@server zimbra]$ zmmailboxdctl restart

Non interactive mode does not enable experimental Libreoffice document preview, automatically installs the Zimlet (in production mode) and force enables it in all COS'es. It also installs public link sharing.

Using Zimbra WebDAV Client you can preview and edit docx,xlsx,pptx,txt and md directly from the Zimbra UI using the power of OnlyOffice by configuring your OnlyOffice Document Server API url in owncloud_zimlet_onlyoffice_api_url. See owncloud_zimlet_enable_onlyoffice below.

In order to make sure OnlyOffice integration works, specially in muti server ZCS clusters, make sure that all of your domains have defined:

• zimbraPublicServiceHostname
• zimbraPublicServiceProtocol
• zimbraPublicServicePort

values which can be found at:

• Configure
• Domains
• example.com
• General Information
  • Public service hostname: mail.example.com
  • Public service protocol: https
  • Public service port: 443

Zimbra WebDAV Client uses OnlyOffice, LibreOffice and jsPDF to display previews of your documents. To enable LibreOffice preview, re-run the installer and choose Y when asked to install LibreOffice Document Preview. Previews are supported for the following file types: pdf,jpg,jpeg,png,txt,md (markdown rendering). Video playback results may be poor supported types: mp4 and webm. If you enabled the optional LibreOffice conversion in the installer, these file types are previewed as well: docx,doc,xlsx,xls,pptx,ppt,odt,ods,odp. On CentOS 7 only (see extras folder): djvu. On top of that the Zimbra WebDAV Client supports editing and redering plain/text and markdown documents. If you install both OnlyOffice and LibreOffice, docx,xlsx and pptx will be renderered using OnlyOffice and odt,ods and odp using LibreOffice.

Zimbra WebDAV Client sends all requests to Nextcloud with an X-Forwarded-For HTTP header. You must configure Zimbra and Nextcloud properly to avoid problems with Nextcloud's bruteforce protection mechanism.

On Zimbra:

#Check current config
zmlocalconfig zimbra_http_originating_ip_header
zimbra_http_originating_ip_header = X-Forwarded-For
zmprov gcf zimbraMailTrustedIP #default empty

#Add Zimbra Proxies and Zimbra Server
zmprov mcf +zimbraMailTrustedIP <zimbra server proxy ip here>

#This needs to be told to Zimbra WebDAV Client as well (workaround for an issue in upload handler)
echo -n "zimbramailtrustedips=" >> /opt/zimbra/lib/ext/ownCloud/trustedIPs.properties
echo $(su zimbra -c "/opt/zimbra/bin/zmprov gcf zimbraMailTrustedIP | cut -c22- | tr '\n' ';'") >> /opt/zimbra/lib/ext/ownCloud/trustedIPs.properties

Then in Nextcloud config.php:

'trusted_proxies' => array('<zimbra server proxy ip here>'),
'forwarded_for_headers' => array('HTTP_X_FORWARDED_FOR'),

You do not need to restart anything after changing these IP.

Each user can configure the WebDAV Client for themselves by clicking Preferences in the Zimlet menu.

Initially the Preferences dialog will be filled with best guess values and values provided by the administrator in config.properties.

It is recommended that the administrator reviews the config.properties and change it to fit the needs. Doing this simplifies things for your users. You can find the configuration in /opt/zimbra/lib/ext/ownCloud/config.properties.

Please note that a preference set by the user has priority over a preference set in config.properties. And config.properties has priority over best guess preferences.

After changing config.properties run the following:

wget https://raw.githubusercontent.com/Zimbra-Community/prop2xml/master/set-java-path.sh -O /tmp/set-java-path.sh
wget https://github.com/Zimbra-Community/prop2xml/raw/master/out/artifacts/prop2xml_jar/prop2xml.jar -O /tmp/prop2xml.jar
chmod +rx /tmp/set-java-path.sh
source /tmp/set-java-path.sh

(Development mode):

java -jar /tmp/prop2xml.jar tk_barrydegraaff_owncloud_zimlet /opt/zimbra/lib/ext/ownCloud/config.properties /opt/zimbra/zimlets-deployed/_dev/tk_barrydegraaff_owncloud_zimlet/config_template.xml

(Production mode):

java -jar /tmp/prop2xml.jar tk_barrydegraaff_owncloud_zimlet /opt/zimbra/lib/ext/ownCloud/config.properties /opt/zimbra/zimlets-deployed/tk_barrydegraaff_owncloud_zimlet/config_template.xml
zmzimletctl configure /opt/zimbra/zimlets-deployed/tk_barrydegraaff_owncloud_zimlet/config_template.xml
zmcontrol restart

Your clients can connect to all dav servers by default, you can restrict the allowed DAV servers to connect to in:

/opt/zimbra/lib/ext/ownCloud/config.properties
allowdomains=allowme.example.com;allowmealso.example.com

No service restart is needed after changing this file.

When the user stores the Nexctloud password on the Zimlet, that password is stored unencrypted in the Zimbra LDAP. As an admin you can either disable the storing of the password OR let your users use an app password or device password see https://docs.nextcloud.com/server/stable/user_manual/session_management.html#managing-devices.

If you use WebDAV Client to connect to Nextcloud (most of us do) you can do a trick to use the Nextcloud logo and name in the Zimbra UI. From your Zimbra server as root:

git clone https://github.com/Zimbra-Community/owncloud-zimlet
cd owncloud-zimlet
./nextcloud-labels.sh

rm -Rf /opt/zimbra/zimlets-deployed/_dev/tk_barrydegraaff_owncloud_zimlet/
rm -Rf /opt/zimbra/zimlets-deployed/_dev/tk_barrydegraaff_docconvert/
rm -Rf /opt/zimbra/lib/ext/ownCloud/
rm -Rf /opt/zimbra/lib/ext/OCS
rm -Rf /opt/zimbra/lib/ext/DocConvert/
zmzimletctl undeploy tk_barrydegraaff_owncloud_zimlet
# It's ok if zmzimlet uninstall fails in development mode
[zimbra@server zimbra]$ zmmailboxdctl restart

The Zimbra WebDAV Client uses built-in language strings from Zimbra, as such it is translated for all languages that are supported by Zimbra.

1. Installer does not work on Ubuntu fails to get the sources from git. This is a suspected cache issue, try again after 10 minutes, if that does not work open the webdav-client-installer.sh and change OWNCLOUD_ZIMLET_CLONE_URL to https://github.com/Zimbra-Community/owncloud-zimlet or http://github.com/Zimbra-Community/owncloud-zimlet or git://github.com/Zimbra-Community/owncloud-zimlet.
2. Passwords with characters like @ will not work, try to install this using a simple account and password (A-Za-z0-9). fixed in 0.6.2.
3. Error 500 but some features work, if you use ownCloud external storage, make sure it is available and marked green.
4. Running a WebDAV server behind and NGINX reverse proxy (from CentOS or Debian) won't work, it will work when proper options are enabled (as for example with zimbra-proxy, also based on NGINX).
5. Delay of 30 seconds in response from Nextcloud, the brute force login protection has kicked in. Configure X-Forwarded-For see above! Or and this is not recommended: set in your Nextcloud the preference 'auth.bruteforce.protection.enabled' => false, and issue truncate table bruteforce_attempts;

See: https://github.com/Zimbra-Community/owncloud-zimlet/wiki/Troubleshooting

And: https://github.com/Zimbra-Community/owncloud-zimlet/wiki/Troubleshooting#example-configuration

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Copyright (C) 2015-2019 Barry de Graaff A Zeta Alliance Zimlet, Michele Olivo ZeXtras

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.