Have a look at this thread:
https://www.mail-archive.com/qmailtoaster-list@qmailtoaster.com/msg41927.html
On 7/14/2019 11:29 AM, Angus McIntyre wrote:
Has anyone been able to successfully run Roundcube with PHP7 on a QMT
install?
I'm following -- more or less -- the install guidelines given on the
qmailtoaster site.
When I have PHP 5.4 installed, I am able to log in and use Roundcube
without problems.
When I have PHP7.2 or 7.3 installed, attempts to log in fail with the
error message 'Invalid request! No data was saved.'
Does this sound familiar to anyone and, if so, how did you solve it?
Thanks,
Angus
TECHNICAL DETAILS
Checking the logs at '/var/log/roundcubemail/errors' shows a slew of
warning messages, most of which read:
PHP Warning: count(): Parameter must be an array or an object
that implements Countable in
/usr/share/roundcubemail/program/lib/Roundcube/rcube_plugin_api.php on
line 406
Mixed in with those is a single instance of:
PHP Warning: session_start(): Failed to read session data: user
(path: /var/lib/php/session) in
/usr/share/roundcubemail/program/lib/Roundcube/rcube_session.php on
line 117
It looks to me as if Roundcube is trying and failing to find a plugin
(or anything else) that implements the 'authenticate' hook. It's
possible that that's not critical, and that it falls back to some core
authentication method -- which is then failing because of a
session-related issue.
Some other data points:
The directory '/var/lib/php/session' exists, and can be read and
written by the 'apache' user.
The database parameters in '/etc/roundcubemail/config.inc.php' are
able to connect to the database.
Session storage is set to 'db':
$config['session_storage'] = 'db'
Changing this to 'php' does not resolve the issue.
Rainloop and Squirrelmail both run without problems on this host.
Squirrelmail creates session records in '/var/lib/php/session'
successfully.
Roundcube version is 1.1.12, and configuration files are taken
directly from the qmailtoaster.com site.
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