[4.0] Issue installing Joomla 4 Plesk

[OrgasmicSweets]

Steps to reproduce the issue

Upload Joomla 4 Install files and navigate to the directory

Expected result

Show Install Page

Actual result

Error An error has occurred while processing your request. 0 Could not create session directory "/var/lib/php/session"

System information (as much as possible)

Plesk Control Panel
Cento OS 7
PHP 7.1

Additional comments

Changed Title to show Issue is about 4.0.

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/20821.}

[Twincarb]

Confirmed issue on my plesk server, the following error is shown in the php error log.

[21-Jun-2018 10:16:12] WARNING: [pool testbed.example.co.uk] child 29054 said into stderr: "NOTICE: PHP message: PHP Warning: is_dir(): open_basedir restriction in effect. File(/var/lib/php/session) is not within the allowed path(s): (/var/www/vhosts/example.co.uk/:/tmp/) in /var/www/vhosts/example.co.uk/testbed.example.co.uk/libraries/vendor/joomla/session/src/Handler/FilesystemHandler.php on line 53"

[21-Jun-2018 10:16:12] WARNING: [pool testbed.example.co.uk] child 29054 said into stderr: "NOTICE: PHP message: PHP Warning: mkdir(): open_basedir restriction in effect. File(/var/lib/php/session) is not within the allowed path(s): (/var/www/vhosts/example.co.uk/:/tmp/) in /var/www/vhosts/example.co.uk/testbed.example.co.uk/libraries/vendor/joomla/session/src/Handler/FilesystemHandler.php on line 55"

The value for open_basedir = {WEBSPACEROOT}{/}{:}{TMP}{/}

the exact same webhost has no issues with a J3.8 install

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/20821.}

[Twincarb]

Changing open_basedir = none allows the install to carry on

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/20821.}

[brianteeman]

@Kubik-Rubik could you take a look at this please

[Kubik-Rubik]

@brianteeman Yes, I will check tomorrow morning. Thank you for mentioning me!

[brianteeman]

if there is a plesk expert then we should take advantage of their expertise - thanks buddy

[Kubik-Rubik]

Okay, just analysed it in detail, this happens due to security restrictions in Plesk's PHP handler.

You need to add the path /var/lib/php/session to the open_basedir value to be able to start the installation process in Joomla! 4.

Go to the PHP settings and change the open_basedir value to:

{WEBSPACEROOT}{/}{:}{TMP}{/}{:}{/}var{/}lib{/}php{/}session{/}

TODO We should check why this is required in Joomla! 4 but not in all previous versions!

Before:

After:

See here for more information: https://support.plesk.com/hc/en-us/articles/115000278993-A-website-hosted-in-Plesk-is-not-accessible-open-basedir-restriction-in-effect

EDIT

We get the path diretly from the PHP settings (libraries/vendor/joomla/session/src/Handler/FileSystemHandler.php):

$path = $path ?: ini_get('session.save_path');

and the path is pre-defined to /var/lib/php/session which is not writeable due to the restriction mentioned above.

Hmm, I will report this internally to Plesk's dev team and see what we can do here! Thank you for reporting this.

[brianteeman]

@Kubik-Rubik Is there anything "we" need to do

[Kubik-Rubik]

@brianteeman Not at the moment, I'm still on this topic internally. I will keep you informed here!

[brianteeman]

great - thanks

[wilsonge]

Assuming there's not much more to be done here so closing