A Roundcube plugin which lets you directly view mail attachments in the browser with cloud viewers like Google Docs or Microsoft Office Web.

• Text: doc, docx, odt^[1], ott^[1]
• Spreadsheet: xls, xlsx, ods^[1], ots^[1]
• Presentation: ppt, pptx, odp^[1], otp^[1]

^[1]: only available in Microsoft Office Web

• pdf

This plugin is tested in the following environment.

• Roundcube: 1.4
• PHP: 7.1 (min requirement), 7.4
• Skin: Classic, Larry, Elastic

Different environments may work as well without guarantee.

This plugin has been published on Packagist by the name of jfcherng-roundcube/cloudview.

1. Go to your ROUNDCUBE_HOME (i.e., the root directory of your Roundcube).
2. Run composer require jfcherng-roundcube/cloudview.
3. You may edit the config.inc.php under this plugin's directory if you want to do some configurations.

1. Create folder cloudview in ROUNDCUBE_HOME/plugins if it does not exist.
2. Copy all plugin files there.
3. Copy config.inc.php.dist to config.inc.php and edit config.inc.php if you want.
4. Edit ROUNDCUBE_HOME/conf/config.inc.php locate $config['plugins'] and add 'cloudview', there:

<?php

// some other codes...

$config['plugins'] = array(
    // some other plugins...
    'cloudview', // <-- add this
);

This plugin will extract attachments from messages into plugins/cloudview/temp/ so that remote cloud viewers can publicly access them. But those files will not be deleted automatically. You will need to setup a cron job to periodically delete them.

For example, execute crontab -e and add the following job

# delete temporary files every day
0 0 * * * rm -f PATH_TO_ROUNDCUBE/plugins/cloudview/temp/*

• The basic idea comes from https://github.com/brestows/cloudview-roundcube
• This plugin is sponsored by @Galandrix.