CLI list-users and create-user

https://github.com/FreshRSS/FreshRSS/issues/1095
https://github.com/FreshRSS/FreshRSS/issues/1090

cli/create-user.php

@@ -0,0 +1,41 @@
+#!/usr/bin/php
+<?php
+require('_cli.php');
+
+$options = getopt('', array(
+		'user:',
+		'password::',
+		'api-password::',
+		'language::',
+		'email::',
+		'token::',
+	));
+
+if (empty($options['user'])) {
+	fail('Usage: ' . basename(__FILE__) . " --user=username --password='password' --api-password='api_password'" .
+		" --language=en --email=user@example.net --token='longRandomString'");
+}
+$new_user_name = $options['user'];
+if (!ctype_alnum($new_user_name)) {
+	fail('FreshRSS error: invalid username “' . $new_user_name . '”');
+}
+
+$usernames = listUsers();
+if (preg_grep("/^$new_user_name$/i", $usernames)) {
+	fail('FreshRSS error: username already taken “' . $new_user_name . '”');
+}
+
+echo 'FreshRSS creating user “', $new_user_name, "”…\n";
+
+$ok = FreshRSS_user_Controller::createUser($new_user_name,
+	empty($options['password']) ? '' : $options['password'],
+	empty($options['api-password']) ? '' : $options['api-password'],
+	array(
+		'language' => empty($options['language']) ? '' : $options['language'],
+		'token' => empty($options['token']) ? '' : $options['token'],
+	));
+
+invalidateHttpCache(FreshRSS_Context::$system_conf->default_user);
+
+echo 'Result: ', ($ok ? 'success' : 'fail'), ".\n";
+exit($ok ? 0 : 1);