Added a console command to set the password of a user.

src/Command/SetPasswordCommand.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace App\Command;
+
+use App\Entity\User;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\Security\Core\Encoder\UserPasswordEncoderInterface;
+
+class SetPasswordCommand extends Command
+{
+    protected static $defaultName = 'app:set-password';
+
+    protected $entityManager;
+    protected $encoder;
+
+    public function __construct(EntityManagerInterface $entityManager, UserPasswordEncoderInterface $passwordEncoder)
+    {
+        $this->entityManager = $entityManager;
+        $this->encoder = $passwordEncoder;
+
+
+        parent::__construct();
+    }
+
+
+    protected function configure()
+    {
+        $this
+            ->setDescription('Sets the password of a user')
+            ->setHelp('This password allows you to set the password of a user, without knowing the old password.')
+            ->addArgument('user', InputArgument::REQUIRED, 'The name of the user')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $io = new SymfonyStyle($input, $output);
+        $user_name = $input->getArgument('user');
+
+        /**
+         * @var User $user
+         */
+        $users = $this->entityManager->getRepository(User::class)->findBy(['name' => $user_name]);
+        $user = $users[0];
+
+
+        if($user == null)
+        {
+            $io->error(sprintf('No user with the given username %s found in the database!', $user_name));
+            return;
+        }
+
+        $io->note('User found!');
+
+        $proceed = $io->confirm(
+            sprintf('You are going to change the password of %s with ID %d. Proceed?',
+                $user->getFullName(true), $user->getID()));
+
+        if(!$proceed)
+        {
+            return;
+        }
+
+        $success = false;
+        $new_password = "";
+
+        while(!$success) {
+            $pw1 = $io->askHidden("Please enter new password:");
+            $pw2 = $io->askHidden('Please confirm:');
+            if($pw1 !== $pw2) {
+                $io->error('The entered password did not match! Please try again.');
+            } else {
+                //Exit loop
+                $success = true;
+                $new_password = $pw1;
+            }
+        }
+
+        //Encode password
+        $hash = $this->encoder->encodePassword($user, $new_password);
+        $user->setPassword($hash);
+
+        //And save it to databae
+        $this->entityManager->persist($user);
+        $this->entityManager->flush();
+
+        $io->success('Password was set successful! You can now log in using the new password.');
+    }
+}