Add base code for webhook.php

Added check_command, send_html, json decoding, and a loop to check for which command was called.

webhook.php

@@ -0,0 +1,71 @@
+<?php
+$bot_name = "zeeth_naaw_bot";
+$bot_api = require('api_key.php');
+
+// Checks whether the given command is the same as the entered command
+function check_command($command) {
+  global $bot_name;
+  global $decoded;
+  $command_list = explode(" ", $decoded->{"message"}->{"text"});
+  if ($command_list[0] == $command || $command_list[0] == $command . "@" . $bot_name) {
+    return True;
+  }
+  else {
+    return False;
+  }
+}
+
+// Send html back to the sender.
+function send_html($post_message, $reply=false) {
+  global $decoded;
+  global $bot_api;
+  global $chat_id;
+  $url = 'https://api.telegram.org/bot' . $bot_api . '/sendMessage';
+  $post_msg = array('chat_id' => $chat_id, 'text' =>$post_message, 'parse_mode' => 'html');
+  if ($reply != false) {
+    if ($reply === true){
+      $post_msg['reply_to_message_id'] = $decoded->{'message'}->{'message_id'};
+    }
+    else {
+      $post_msg['reply_to_message_id'] = $reply;
+    }
+  }
+  $options = array(
+    'http' => array(
+      'header' => "Content-type: application/x-www-form-urlencoded\r\n",
+      'method' => 'POST',
+      'content' => http_build_query($post_msg)
+    )
+  );
+  $context = stream_context_create($options);
+  $result = file_get_contents($url, false, $context);
+}
+
+// Get JSON from post, store it and decode it.
+$var = file_get_contents('php://input');
+$decoded = json_decode($var);
+
+// Store the chat ID
+$chat_id = $decoded->{"message"}->{"chat"}->{"id"};
+
+if ($chat_id != -1001180504638){
+  die();
+}
+
+$modules = array(
+  array(
+    "command" => "/update",
+    "function" => "update();"
+  )
+);
+
+
+$command_list = explode(" ", $decoded->{"message"}->{"text"});
+
+foreach ($modules as $module ) {
+  if (check_command($module["command"])) {
+    eval($module["function"]);
+    exit();
+  }
+}
+?>