Add a new /id command, add available commands to readme.

Author: noplanman

CHANGELOG.md

@@ -6,6 +6,7 @@ Exclamation symbols (:exclamation:) note something of importance e.g. breaking c
 ## [Unreleased]
 ### Added
 - Description for commands.
+- `/id` command, to help users find their user and chat information.
 ### Changed
 ### Deprecated
 ### Removed

README.md

@@ -5,6 +5,7 @@ Assistant bot for the [PHP Telegram Bot Support] group.
 ## Commands
 
 - `/help`: A short description of the bot and a list of all available commands.
+- `/id`: Display the user and chat information. Also, try forwarding any message from a channel to display the channel information.
 - `/rules`: Show the rules that apply in the support group.
 
 [PHP Telegram Bot Support]: https://t.me/PHP_Telegram_Bot_Support "@PHP_Telegram_Bot_Support"

commands/ChannelpostCommand.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * This file is part of the PHP Telegram Support Bot.
+ *
+ * (c) PHP Telegram Bot Team (https://github.com/php-telegram-bot)
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Longman\TelegramBot\Commands\SystemCommands;
+
+use Longman\TelegramBot\Commands\SystemCommand;
+use Longman\TelegramBot\Entities\ServerResponse;
+use Longman\TelegramBot\Exception\TelegramException;
+use Longman\TelegramBot\Request;
+
+/**
+ * Handle post sent from channel.
+ */
+class ChannelpostCommand extends SystemCommand
+{
+    /**
+     * @var string
+     */
+    protected $name = 'channelpost';
+
+    /**
+     * @var string
+     */
+    protected $description = 'Handle Channel Post';
+
+    /**
+     * @var string
+     */
+    protected $version = '0.1.0';
+
+    /**
+     * @inheritdoc
+     * @throws TelegramException
+     */
+    public function execute(): ServerResponse
+    {
+        if ($this->getChannelPost()->getCommand() === 'id') {
+            return $this->getTelegram()->executeCommand('id');
+        }
+
+        return Request::emptyResponse();
+    }
+}

commands/GenericmessageCommand.php

@@ -16,7 +16,6 @@
 use Longman\TelegramBot\Commands\SystemCommand;
 use Longman\TelegramBot\Entities\ServerResponse;
 use Longman\TelegramBot\Exception\TelegramException;
-use Longman\TelegramBot\Request;
 
 /**
  * Generic message command
@@ -36,7 +35,7 @@ class GenericmessageCommand extends SystemCommand
     /**
      * @var string
      */
-    protected $version = '0.1.0';
+    protected $version = '0.2.0';
 
     /**
      * Execute command
@@ -51,6 +50,11 @@ public function execute(): ServerResponse
             return $this->getTelegram()->executeCommand('newchatmembers');
         }
 
-        return Request::emptyResponse();
+        // Handle posts forwarded from channels.
+        if ($this->getMessage()->getForwardFrom()) {
+            return $this->getTelegram()->executeCommand('id');
+        }
+
+        return parent::execute();
     }
 }

commands/IdCommand.php

@@ -0,0 +1,117 @@
+<?php
+
+/**
+ * This file is part of the PHP Telegram Support Bot.
+ *
+ * (c) PHP Telegram Bot Team (https://github.com/php-telegram-bot)
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Longman\TelegramBot\Commands\UserCommands;
+
+use Longman\TelegramBot\Commands\UserCommand;
+use Longman\TelegramBot\Entities\ServerResponse;
+use Longman\TelegramBot\Exception\TelegramException;
+use Longman\TelegramBot\Request;
+
+/**
+ * Display user and chat information.
+ */
+class IdCommand extends UserCommand
+{
+    /**
+     * @var string
+     */
+    protected $name = 'id';
+
+    /**
+     * @var string
+     */
+    protected $description = 'Get all identifying information about the current user and chat';
+
+    /**
+     * @var string
+     */
+    protected $version = '0.1.0';
+
+    /**
+     * @var bool
+     */
+    protected $private_only = true;
+
+    /**
+     * @return ServerResponse
+     * @throws TelegramException
+     */
+    public function preExecute(): ServerResponse
+    {
+        $this->isPrivateOnly() && $this->removeNonPrivateMessage();
+
+        // Make sure we only reply to messages.
+        if (!$this->getMessage()) {
+            return Request::emptyResponse();
+        }
+
+        return $this->execute();
+    }
+
+    /**
+     * Execute command
+     *
+     * @return ServerResponse
+     * @throws TelegramException
+     */
+    public function execute(): ServerResponse
+    {
+        $user_info = '👤 *User Info*' . PHP_EOL . $this->getUserInfo();
+        $chat_info = '🗣 *Chat Info*' . PHP_EOL . $this->getChatInfo();
+
+        return $this->replyToUser($user_info . PHP_EOL . PHP_EOL . $chat_info, ['parse_mode' => 'markdown']);
+    }
+
+    /**
+     * Get the information of the user.
+     *
+     * @return string
+     */
+    protected function getUserInfo(): string
+    {
+        $user = $this->getMessage()->getFrom();
+
+        return implode(PHP_EOL, [
+            "User Id: `{$user->getId()}`",
+            'First Name: ' . (($first_name = $user->getFirstName()) ? "`{$first_name}`" : '_n/a_'),
+            'Last Name: ' . (($last_name = $user->getLastName()) ? "`{$last_name}`" : '_n/a_'),
+            'Username: ' . (($username = $user->getUsername()) ? "`{$username}`" : '_n/a_'),
+            'Language Code: ' . (($language_code = $user->getLanguageCode()) ? "`{$language_code}`" : '_n/a_'),
+        ]);
+    }
+
+    /**
+     * Get the information of the chat.
+     *
+     * @return string
+     */
+    protected function getChatInfo(): string
+    {
+        $message = $this->getMessage();
+        $chat    = $message->getForwardFromChat() ?? $message->getChat();
+
+        if (!$chat || $chat->isPrivateChat()) {
+            return '`Private chat`';
+        }
+
+        return implode(PHP_EOL, [
+            "Type: `{$chat->getType()}`",
+            "Chat Id: `{$chat->getId()}`",
+            'Title: ' . (($title = $chat->getTitle()) ? "`{$title}`" : '_n/a_'),
+            'First Name: ' . (($first_name = $chat->getFirstName()) ? "`{$first_name}`" : '_n/a_'),
+            'Last Name: ' . (($last_name = $chat->getLastName()) ? "`{$last_name}`" : '_n/a_'),
+            'Username: ' . (($username = $chat->getUsername()) ? "`{$username}`" : '_n/a_'),
+        ]);
+    }
+}