Unable to load the login-password-less plugin

[ghost]

Hello !

We are trying to extend your image because we need to use the login-password-less plugin and it needs a custom file for the mandatory parameter.

Here is my Dockerfile :

FROM adminer:4.7.1-standalone
USER root
COPY login-password-less.php /var/www/html/plugins-enabled/login-password-less.php
USER adminer

And the content of login-password-less.php file :

<?php
require_once('plugins/login-password-less.php');

/** Set allowed password
	* @param string result of password_hash
	*/
return new AdminerLoginPasswordLess(
	$password_hash = "notthatvalue"
);

I set the env var ADMINER_PLUGINS to "login-password-less" but I still have this error on startup :

Unable to load plugin file "login-password-less", because it has required parameters: password_hash
Create a file "/var/www/html/plugins-enabled/login-password-less.php" with the following contents to load the plugin:

<?php
require_once('plugins/login-password-less.php');

/** Set allowed password
	* @param string result of password_hash
	*/
return new AdminerLoginPasswordLess(
	$password_hash = ???
);

Am I missing something ?

[TimWolla]

Am I missing something ?

Yes. The ADMINER_PLUGINS environment variable is needed for the “autoloader” that set's up the file in plugins-enabled automatically. If you create the file yourself you must not add the plugin to the environment, because it would be overridden.

[ps-feng]

For the sake of completion, here's the login-password-less.php file that allows password-less access. For DBs without password, enter admin as the password.

<?php
require_once('plugins/login-password-less.php');

/** Set allowed password
	* @param string result of password_hash
	*/
return new AdminerLoginPasswordLess(
	$password_hash = password_hash("admin", PASSWORD_DEFAULT)
);

[Shurbeski]

is it USER adminer in your dockerfile necessary?
Because i did the same thing and it didnt work.
I used this scritp:

require_once('plugins/login-password-less.php');

/** Set allowed password
	* @param string result of password_hash
	*/
return new AdminerLoginPasswordLess(
	$password_hash = password_hash("admin", PASSWORD_DEFAULT)
);

I just didn't add USER in my dockerfile as you

[TimWolla]

is it USER adminer in your dockerfile necessary?

The USER within the Dockerfile is used to run the container as a restricted system user. It has nothing to do with the database user or a login username. So yes, the USER adminer is necessary.

[nerkn]

PASSWORD_DEFAULT is global php variable, or docker environment variable, or placeholder for us to change?

[TimWolla]

PASSWORD_DEFAULT is global php variable, or docker environment variable, or placeholder for us to change?

That is a PHP constant to indicate the password hashing algorithm to use. Adminer expects a hashed password and that call will create a valid hash ad-hoc. As of right now PASSWORD_DEFAULT will result in a BCrypt hash:

php > var_dump(password_hash("admin", PASSWORD_DEFAULT));
php shell code:1:
string(60) "$2y$10$BsmC9NHuyjlOWyt9Q5FVA.WL/6lvZCZAdNF0wr9vLAA.s5SaU7xQq"

You must not replace that constant.