send_muse.php

<?php
session_start();
if(!isset($_SESSION['loggedin']) || $_SESSION['loggedin']!==true){
  header('location:login.php');
  exit;
}
require('mysql_conn.php');
$username=trim($_SESSION['username']);
$receiver=trim($_POST['receiver']);
$receiver=filter_var($receiver,FILTER_SANITIZE_STRING);
$messages=trim($_POST['send_content']);
$messages=filter_var($messages,FILTER_SANITIZE_STRING);
$ciphering = "AES-128-CTR";
$iv_length = openssl_cipher_iv_length($ciphering);
$options = 0;
$encryption_iv = '1234567891011121';
$encryption_key = "easy_encryption";
$messages_encrypted = openssl_encrypt($messages, $ciphering, $encryption_key, $options, $encryption_iv);

$max_msg=1000;
if(strlen($messages)==0){
	header('location:view_inbox.php?id='.$receiver);
	exit;
}
$result=$conn->query("select id from $username where sender='$receiver' or receiver='$receiver' order by id asc;");
if($result->num_rows==$max_msg){
  $row=$result->fetch_assoc();
  $conn->query("delete from $username where id='".$row['id']."';");
}
$result=$conn->query("select id from $receiver where sender='$username' or receiver='$username' order by id asc;");
if($result->num_rows==$max_msg){
  $row=$result->fetch_assoc();
  $conn->query("delete from $receiver where id='".$row['id']."';");
}

$time=date("h:ia").", ".date("d M Y");
$time=$_POST['time'];
$conn->query("insert into $receiver (inbox,sender,timeinbox,viewed) values ('$messages_encrypted','$username','$time',0);");
$conn->query("insert into $username (outbox,receiver,timeoutbox,viewed) values ('$messages_encrypted','$receiver','$time',1);");

require 'vendor/autoload.php';
$client = new \Fcm\FcmClient('AAAAAgwfQzw:APA91bFXh8r8k9veJhve3cBNpPE9tL2ZOen2Uk9AqPuA_re85VMJsJbc6_knKouFzZ61K3arrLoOHGzMHo7liMp1VdxBMAHX9z2QVzlq7jG-plM4gwK6zmVJ1I3B0uEjVxNYmJetWFdg','8793310012');

$notification = new \Fcm\Push\Notification();
$res=$conn->query("select token_id from users where username='$receiver';");
$row=$res->fetch_assoc();
$deviceId=$row['token_id'];
#$deviceId=$_SESSION['token'];
#echo $deviceId;
$notification
    ->addRecipient($deviceId)
    ->setTitle("Message from @".$username)
    ->setColor('#20F037')
    ->setIcon("ic_small_icon.png")
    ->setSound("default")
    ->setBadge(11)
    ->setBody($messages);

// Shortcut function:
#$notification = $client->pushNotification('The title', 'The body', $deviceId);
#print_r($notification);
$response = $client->send($notification);


header('location:view_inbox.php?error=0&id='.$receiver);

?>