superjojo2001

Assuming I set up a virtual machine on a Windows system with a fresh Ubuntu 24.xx installation, and walked you through the roughly 20 Linux commands required to install WordPress and Moodle and Edwiser plugins — and assuming I could reproduce the exact same issue in that environment — my question is: would you be able to run such a VM on your end to verify it?

If not, there’s no point in me investing time in preparing this setup.

Please advise.

And I’m not sure if you’ve noticed, but Moodle 5.0 was released two days ago.
Since older versions will be reaching end-of-support, I’ll be moving forward with the installation of Moodle 5.0.

Regards
Armin

You are writing to test a code, but I can’t find it in your post. It might be forgotten, or?

Thanks
Armin

I want to follow your idea of changing wordpress edwiser plugin code. I extended the following line in

edwiser-bridge/admin/class-eb-settings-ajax-initiater.php

public function connection_test_initiater() {

            error_log('connection_test_initiater() called');

            // verifying generated nonce we created earlier.
            if ( ! isset( $_POST['_wpnonce_field'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['_wpnonce_field'] ) ), 'check_sync_action' ) ) {
                    die( 'Busted!' );

and I also edited the following line

  public function check_valid_json_response() {

            error_log('check_valid_json_response() called');

            // verifying generated nonce we created earlier.

            if ( ! isset( $_POST['_wpnonce_field'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_POST['_wpnonce_field'] ) ), 'check_sync_action' ) ) {
                    wp_send_json_error();
            }
            // start working on request.
            $url   = isset( $_POST['url'] ) ? sanitize_text_field( wp_unslash( $_POST['url'] ) ) : '';

Then I clicked on your “Test Connection” button in Edwiser plugin afterwards and I was looking to my ./wp-content/debug.log file
It says
[10-Apr-2025 14:40:36 UTC] connection_test_initiater() called

There is no indication that check_valid_json_response() was called at all.

Hello,

The two specified URLs are only accessible within my local home network.

The Ubuntu server, where both applications are installed and running under Apache2, has the local IP address 192.168.30.40. On my home DNS server, I configured the hostnames lms.wordpress.local and lms.moodle.local to resolve to this IP address. Therefore, it is of course expected that these URLs are not reachable from the internet by you.

The Apache server is functioning correctly, as I can access the WordPress admin interface via lms.wordpress.local and the Moodle admin interface via lms.moodle.local without any issues.

Additionally, when accessing the local server via the following URL:

https://lms.moodle.local/webservice/rest/server.php?wstoken=2f73e220ba27271267ecf26a48156eef&wsfunction=auth_edwiserbridge_test_connection&moodlewsrestformat=json

the browser returns the following JSON-formatted response coming from Moodle web server interface:

{"exception":"core\\exception\\invalid_parameter_exception","errorcode":"invalidparameter","message":"Invalid parameter value detected"}

This response clearly indicates that both Apache2 and the Moodle installation are functioning correctly and the web server interface is active. If Apache2 were misconfigured or Moodle were not properly set up, the browser would not return a structured error message—instead, it would result in a timeout or connection error.

If I call the same command with an invalid token, the response is

{"exception":"core\\exception\\moodle_exception","errorcode":"invalidtoken","message":"Invalid token - token not found"}

To demonstrate that my Moodle instance is functioning properly and also my token ist correct, I verified the same Moodle instance and webservice interface by accessing the following URL:

https://lms.moodle.local/webservice/rest/server.php?wstoken=2f73e220ba27271267ecf26a48156eef&wsfunction=core_webservice_get_site_info&moodlewsrestformat=json

I am getting this response

{"sitename":"Test","username":"admin","firstname":"Armin","lastname":"xxxx","fullname":"Armin xxxx","lang":"en","userid":2,"siteurl":"https:\/\/lms.moodle.local","userpictureurl":"https:\/\/lms.moodle.local\/pluginfile.php\/5\/user\/icon\/degrade\/f1?rev=175","functions":[{"name":"core_user_create_users","version":"2024100703.04"},{"name":"core_user_delete_users","version":"2024100703.04"},{"name":"core_user_get_users_by_field","version":"2024100703.04"},{"name":"core_user_update_users","version":"2024100703.04"},{"name":"core_course_get_courses","version":"2024100703.04"},{"name":"core_course_get_courses_by_field","version":"2024100703.04"},{"name":"core_course_get_categories","version":"2024100703.04"},{"name":"enrol_manual_enrol_users","version":"2024100700"},{"name":"enrol_manual_unenrol_users","version":"2024100700"},{"name":"core_enrol_get_users_courses","version":"2024100703.04"},{"name":"core_cohort_add_cohort_members","version":"2024100703.04"},{"name":"core_cohort_create_cohorts","version":"2024100703.04"},{"name":"core_role_assign_roles","version":"2024100703.04"},{"name":"core_role_unassign_roles","version":"2024100703.04"},{"name":"core_cohort_delete_cohort_members","version":"2024100703.04"},{"name":"core_cohort_get_cohorts","version":"2024100703.04"},{"name":"core_webservice_get_site_info","version":"2024100703.04"},{"name":"auth_edwiserbridge_test_connection","version":"2025040200"},{"name":"auth_edwiserbridge_get_site_data","version":"2025040200"},{"name":"auth_edwiserbridge_get_course_progress","version":"2025040200"},{"name":"auth_edwiserbridge_get_edwiser_plugins_info","version":"2025040200"},{"name":"auth_edwiserbridge_get_course_enrollment_method","version":"2025040200"},{"name":"auth_edwiserbridge_update_course_enrollment_method","version":"2025040200"},{"name":"auth_edwiserbridge_get_mandatory_settings","version":"2025040200"},{"name":"auth_edwiserbridge_enable_plugin_settings","version":"2025040200"},{"name":"auth_edwiserbridge_validate_token","version":"2025040200"},{"name":"auth_edwiserbridge_verify_sso_token","version":"2025040200"},{"name":"auth_edwiserbridge_get_users","version":"2025040200"},{"name":"auth_edwiserbridge_get_courses","version":"2025040200"},{"name":"auth_edwiserbridge_manage_cohort_enrollment","version":"2025040200"},{"name":"auth_edwiserbridge_delete_cohort","version":"2025040200"},{"name":"auth_edwiserbridge_manage_user_cohort_enrollment","version":"2025040200"}],"downloadfiles":1,"uploadfiles":1,"release":"4.5.3+ (Build: 20250328)","version":"2024100703.04","mobilecssurl":"","advancedfeatures":[{"name":"usecomments","value":1},{"name":"usetags","value":1},{"name":"enablenotes","value":1},{"name":"messaging","value":1},{"name":"enableblogs","value":1},{"name":"enablecompletion","value":1},{"name":"enablebadges","value":1},{"name":"messagingallusers","value":0},{"name":"enablecustomreports","value":1},{"name":"enableglobalsearch","value":0},{"name":"mnet_dispatcher_mode","value":0},{"name":"enablecompetencies","value":1}],"usercanmanageownfiles":true,"userquota":0,"usermaxuploadfilesize":-1,"userhomepage":0,"userprivateaccesskey":"f13747c321e5e6990fb8685e2e0e7bfd","siteid":1,"sitecalendartype":"gregorian","usercalendartype":"gregorian","userissiteadmin":true,"theme":"degrade","limitconcurrentlogins":0,"policyagreed":0}

As you can see, basic web service access is functioning correctly.

The only difference lies in the wsfunction parameter. Moreover, since the core_webservice_get_site_info call returns a JSON response listing all supported web service functions, this confirms that the function auth_edwiserbridge_test_connection should indeed be available and supported.

Is there any configuration in Moodle that I might have overlooked which could prevent receiving a valid response from the web service interface?

P.S.: I would also like to inform you that, once my private testing with Edwiser Bridge at home is successfully completed, the company I work for intends to proceed with the purchase of an official Edwiser Bridge Pro Lifetime license in Q3/2025.

Thanks
Armin

I downgraded to php 8.1.x. The error still remains. Here is what the phpinfo page is showing to me right now

PHP Version 8.1.32
SystemLinux cirrus7-ubuntu 6.8.0-57-generic #59-Ubuntu SMP PREEMPT_DYNAMIC Sat Mar 15 17:40:59 UTC 2025 x86_64Build DateMar 13 2025 18:27:44Build SystemLinuxServer APIApache 2.0 HandlerVirtual Directory SupportdisabledConfiguration File (php.ini) Path/etc/php/8.1/apache2Loaded Configuration File/etc/php/8.1/apache2/php.iniScan this dir for additional .ini files/etc/php/8.1/apache2/conf.dAdditional .ini files parsed/etc/php/8.1/apache2/conf.d/10-mysqlnd.ini, /etc/php/8.1/apache2/conf.d/10-opcache.ini, /etc/php/8.1/apache2/conf.d/10-pdo.ini, /etc/php/8.1/apache2/conf.d/15-xml.ini, /etc/php/8.1/apache2/conf.d/20-calendar.ini, /etc/php/8.1/apache2/conf.d/20-ctype.ini, /etc/php/8.1/apache2/conf.d/20-curl.ini, /etc/php/8.1/apache2/conf.d/20-dom.ini, /etc/php/8.1/apache2/conf.d/20-exif.ini, /etc/php/8.1/apache2/conf.d/20-ffi.ini, /etc/php/8.1/apache2/conf.d/20-fileinfo.ini, /etc/php/8.1/apache2/conf.d/20-ftp.ini, /etc/php/8.1/apache2/conf.d/20-gettext.ini, /etc/php/8.1/apache2/conf.d/20-iconv.ini, /etc/php/8.1/apache2/conf.d/20-mbstring.ini, /etc/php/8.1/apache2/conf.d/20-mysqli.ini, /etc/php/8.1/apache2/conf.d/20-pdo_mysql.ini, /etc/php/8.1/apache2/conf.d/20-phar.ini, /etc/php/8.1/apache2/conf.d/20-posix.ini, /etc/php/8.1/apache2/conf.d/20-readline.ini, /etc/php/8.1/apache2/conf.d/20-shmop.ini, /etc/php/8.1/apache2/conf.d/20-simplexml.ini, /etc/php/8.1/apache2/conf.d/20-sockets.ini, /etc/php/8.1/apache2/conf.d/20-sysvmsg.ini, /etc/php/8.1/apache2/conf.d/20-sysvsem.ini, /etc/php/8.1/apache2/conf.d/20-sysvshm.ini, /etc/php/8.1/apache2/conf.d/20-tokenizer.ini, /etc/php/8.1/apache2/conf.d/20-xmlreader.ini, /etc/php/8.1/apache2/conf.d/20-xmlwriter.ini, /etc/php/8.1/apache2/conf.d/20-xsl.ini, /etc/php/8.1/apache2/conf.d/20-zip.iniPHP API20210902PHP Extension20210902Zend Extension420210902Zend Extension BuildAPI420210902,NTSPHP Extension BuildAPI20210902,NTSDebug BuildnoThread SafetydisabledZend Signal HandlingenabledZend Memory ManagerenabledZend Multibyte Supportprovided by mbstringZend Max Execution TimersdisabledIPv6 SupportenabledDTrace Supportavailable, disabledRegistered PHP Streamshttps, ftps, compress.zlib, php, file, glob, data, http, ftp, phar, zipRegistered Stream Socket Transportstcp, udp, unix, udg, ssl, tls, tlsv1.0, tlsv1.1, tlsv1.2, tlsv1.3Registered Stream Filterszlib.*, string.rot13, string.toupper, string.tolower, convert.*, consumed, dechunk, convert.iconv.*

I can’t append pictures to this chat unfortunately

Thank you once again for your response.

As mentioned in my initial message, I’m working with a completely fresh setup: a clean installation of Ubuntu, a brand-new WordPress instance, and the first — and only — plugin I installed was the Edwiser plugin. There is no plugin history or interference from other extensions, as I haven’t installed anything else.

Given this, there’s nothing I can deactivate or troubleshoot in terms of conflicts — it’s a 100% fresh Ubuntu environment, 100% fresh WordPress installation, and a 100% clean Edwiser plugin setup.

P.S.:

1. And the installation of Edwiser Plugin into moodle worked well as instructed.
2. The Ubuntu was installed natively on a PC machine. It is not a Virtual machine by the way.

This is the WordPress installation I did

sudo apt update
sudo apt -y install apache2 \
ghostscript \
libapache2-mod-php \
mariadb-server \
php \
php-bcmath \
php-curl \
php-imagick \
php-intl \
php-json \
php-mbstring \
php-mysql \
php-xml \
php-zip

Then I installed the actual wordpress into the apache HTML folder

sudo chown www-data: /var/www/html
curl https://ww.wp.xz.cn/latest.tar.gz | sudo -u www-data tar zx -C /var/www/html

Then I configured the mariadb-server

sudo mysql -u root -p
CREATE DATABASE wordpress_db DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
CREATE USER 'wp_user'@'localhost' IDENTIFIED BY 'xxxxxxxxxxxxxxx';
GRANT ALL PRIVILEGES ON wordpress_db.* TO 'wp_user'@'localhost';
FLUSH PRIVILEGES;

I setup the apache server

sudo nano /etc/apache2/sites-available/wordpress.conf

and configured the wordpress.conf file for a virtual host and ssl certificates. I enabled the site with

sudo a2ensite wordpress.conf
sudo a2enmod rewrite
sudo a2enmod ssl
sudo a2enmod headers
sudo a2dissite 000-default
sudo apache2ctl configtest
sudo systemctl reload apache2

Finally I was able to access the fresh WordPress page and to login. It asked me for the database setup and I entered the credentials … and the setup was finished.

And from there I started to install the Edwiser Plugin and tried to activate it.

This is my history.

I removed the complete printf line just for a test. The error is gone in that line, but at the same time it appeared in another printf line.