PHP Classes

File: src/func/DynamicKey5.php

Recommend this page to a friend!
  Classes of Ujah Chigozie peter   PHP Agora Tokens   src/func/DynamicKey5.php   Download  
File: src/func/DynamicKey5.php
Role: Auxiliary script
Content type: text/plain
Description: Configuration script
Class: PHP Agora Tokens
Generate Agora user authentication tokens
Author: By
Last change:
Date: 19 days ago
Size: 2,930 bytes
 

Contents

Class file image Download
<?php
namespace Peterujah\Agora\func;
$version = "005";
$NO_UPLOAD = "0";
$AUDIO_VIDEO_UPLOAD = "3";

// InChannelPermissionKey
$ALLOW_UPLOAD_IN_CHANNEL = 1;

// Service Type
$MEDIA_CHANNEL_SERVICE = 1;
$RECORDING_SERVICE = 2;
$PUBLIC_SHARING_SERVICE = 3;
$IN_CHANNEL_PERMISSION = 4;

function generateRecordingKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs)
{
    return generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $GLOBALS["RECORDING_SERVICE"], array());
}

function generateMediaChannelKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs)
{
    return generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $GLOBALS["MEDIA_CHANNEL_SERVICE"], array());
}

function generateInChannelPermissionKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $permission)
{
    $extra[$GLOBALS["ALLOW_UPLOAD_IN_CHANNEL"]] = $permission;
    return generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $GLOBALS["IN_CHANNEL_PERMISSION"], $extra);
}

function generateDynamicKey($appID, $appCertificate, $channelName, $ts, $randomInt, $uid, $expiredTs, $serviceType, $extra)
{
    $signature = generateSignature($serviceType, $appID, $appCertificate, $channelName, $uid, $ts, $randomInt, $expiredTs, $extra);
    $content = packContent($serviceType, $signature, hex2bin($appID), $ts, $randomInt, $expiredTs, $extra);
    // echo bin2hex($content);
    return $GLOBALS["version"] . base64_encode($content);
}

function generateSignature($serviceType, $appID, $appCertificate, $channelName, $uid, $ts, $salt, $expiredTs, $extra)
{
    $rawAppID = hex2bin($appID);
    $rawAppCertificate = hex2bin($appCertificate);
   
    $buffer = pack("S", $serviceType);
    $buffer .= pack("S", strlen($rawAppID)) . $rawAppID;
    $buffer .= pack("I", $ts);
    $buffer .= pack("I", $salt);
    $buffer .= pack("S", strlen($channelName)) . $channelName;
    $buffer .= pack("I", $uid);
    $buffer .= pack("I", $expiredTs);

    $buffer .= pack("S", count($extra));
    foreach ($extra as $key => $value) {
        $buffer .= pack("S", $key);
        $buffer .= pack("S", strlen($value)) . $value;
    }

    return strtoupper(hash_hmac('sha1', $buffer, $rawAppCertificate));
}

function packString($value)
{
    return pack("S", strlen($value)) . $value;
}

function packContent($serviceType, $signature, $appID, $ts, $salt, $expiredTs, $extra)
{
    $buffer = pack("S", $serviceType);
    $buffer .= packString($signature);
    $buffer .= packString($appID);
    $buffer .= pack("I", $ts);
    $buffer .= pack("I", $salt);
    $buffer .= pack("I", $expiredTs);

    $buffer .= pack("S", count($extra));
    foreach ($extra as $key => $value) {
        $buffer .= pack("S", $key);
        $buffer .= packString($value);
    }

    return $buffer;
}