# Mattermost ONLYOFFICE integration plugin This app enables users to edit office documents from Mattermost using ONLYOFFICE Docs packaged as Document Server - Community or Enterprise Edition.

Features

The app allows to:

• Edit text documents, spreadsheets, and presentations.
• Share files with basic permission types - viewing/editing.
• Co-edit documents in real-time.

Supported formats:

• For editing: DOCX, XLSX, PPTX.
• For viewing: XLS, XLSX, CSV, XLSM, XLT, XLTM, ODS, FODS, OTS, PPS, PPSX, PPSM, PPT, PPTX, PPTM, POT, POTX, POTM, ODP, FODP, OTP, DOC, DOCX, DOCM, DOT, DOTX, DOTM, ODT, FODT, OTT, RTF.

Installing ONLYOFFICE Docs

You will need an instance of ONLYOFFICE Docs (Document Server) that is resolvable and connectable both from Mattermost and any end clients. ONLYOFFICE Document Server must also be able to POST to Mattermost directly.

Document Server and Mattermost can be installed either on different computers or on the same machine. In case you choose the latter option, you need to set up a custom port for Document Server.

You can install free Community version of ONLYOFFICE Docs or scalable Enterprise Edition with pro features.

To install free Community version, use Docker (recommended) or follow these instructions for Debian, Ubuntu, or derivatives.

To install Enterprise Edition, follow the instructions here.

Community Edition vs Enterprise Edition comparison can be found here.

Installing Mattermost ONLYOFFICE integration plugin

1. Install Node.js. Check instructions
2. Install Go. Check instructions

3. Install make:

   sudo apt install make

4. Clone the plugin branch:

   git clone https://github.com/ONLYOFFICE/onlyoffice-mattermost.git

5. Install the dependencies:

   cd onlyoffice-mattermost/webapp/
   npm install --legacy-peer-deps

6. Go to the project root and start the build:

   cd onlyoffice-mattermost/
   make dist

   Please note: if Error: error:0308010C:digital envelope routines::unsupported occurs, add the export NODE_OPTIONS=--openssl-legacy-provider variable.

Plugin settings

• Document Editing Service address: The URL and port of the installed ONLYOFFICE Document Server.

• Secret key: Starting from version 7.2, JWT is enabled by default and the secret key is generated automatically to restrict the access to ONLYOFFICE Docs and for security reasons and data integrity. Specify your own secret key in the Mattermost plugin configuration. In the ONLYOFFICE Docs config file, specify the same secret key and enable the validation.

• JWT Header: If JWT protection is enabled, it is necessary to specify a custom header name since the Mattermost security policy blocks external 'Authorization' Headers. This header should be specified in the ONLYOFFICE Docs signature settings as well (further information can be found here).

• JWT Prefix: Used to specify the ONLYOFFICE Docs prefix.

Using Mattermost ONLYOFFICE integration plugin

Users are able to open files sent in personal and group Mattermost chats for viewing and co-editing.

When files are sent in the chat message, the following actions are available in the file context menu by clicking the ⋮ symbol:

• Open file in ONLYOFFICE and Change access rights — for the author of the message.
• Open file in ONLYOFFICE — for the recipient of the message.

When clicking on the Open file in ONLYOFFICE button, the corresponding ONLYOFFICE editor opens in the same window.

The author of the message with attached documents is able to change access rights to the file via the context menu using the Change access rights option. This action is available both in personal and group chats.

ONLYOFFICE bot sends notifications about changes in the document specifying the name of the user who made those changes.

ONLYOFFICE Docs editions

ONLYOFFICE offers different versions of its online document editors that can be deployed on your own servers.

ONLYOFFICE Docs packaged as Document Server:

• Community Edition (onlyoffice-documentserver package)
• Enterprise Edition (onlyoffice-documentserver-ee package)

The table below will help you make the right choice.

In case of technical problems, the best way to get help is to submit your issues here. Alternatively, you can contact ONLYOFFICE team on forum.onlyoffice.com.