[ticket/17414] Start work on new captcha classes

PHPBB-17414

phpBB/phpbb/captcha/plugins/plugin_interface.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace phpbb\captcha\plugins;
+
+interface plugin_interface
+{
+	const CONFIRMATION_REGISTRATION = 1;
+	const CONFIRMATION_LOGIN = 2;
+
+	const CONFIRMATION_POST = 3;
+
+	const CONFIRMATION_REPORT = 4;
+
+
+	/**
+	 * Check if the plugin is available
+	 * @return bool True if the plugin is available, false if not
+	 */
+	public function is_available(): bool;
+
+	/**
+	 * Check if the plugin has a configuration
+	 *
+	 * @return bool True if the plugin has a configuration, false if not
+	 */
+	public function has_config(): bool;
+
+	/**
+	 * Get the name of the plugin, should be language variable
+	 *
+	 * @return string
+	 */
+	public static function get_name(): string;
+
+	/**
+	 * Display the captcha for the specified type
+	 *
+	 * @param int $type Type of captcha, should be one of the CONFIRMATION_* constants
+	 * @return void
+	 */
+	public function show(int $type): void;
+}