Viewing file:  jwt.php (2.81 KB) -rw-r--r--
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<?php
namespace Plivo\Util;
use Plivo\Authentication\BasicAuth;
use Plivo\Exceptions\PlivoValidationException;
use \Firebase\JWT\JWT;
/**
* Class jwt
* @package Plivo\Util
*/
class AccessToken
{
protected $basicAuth;
protected $username;
protected $validFrom;
protected $lifetime = 86400;
protected $grants = [];
protected $uid;
/**
* Instantiates a new AccessToken object.
*
* @param string|null $authId
* @param string|null $authToken
* @param string $username endpoint
* @param integer|null $validFrom valid not before this epoch
* @param integer|null $lifetime validity in seconds
* @param integer|null $validTill validity expires at this epoch
* @param null $uid
*/
public function __construct(
$authId = null,
$authToken = null,
$username = null,
$validFrom = null,
$lifetime = null,
$validTill = null,
$uid = null
)
{
$this->basicAuth = new BasicAuth($authId, $authToken);
if ($username == null) {
throw new PlivoValidationException("null username not allowed");
}
$this->username = $username;
$this->validFrom = intval($validFrom?:gmdate('U'));
$this->lifetime = intval($lifetime?:86400);
if ($lifetime != null) {
if ($validTill != null) {
throw new PlivoValidationException("use either lifetime or validTill");
}
} else if ($validTill != null) {
$this->lifetime = intval($validTill)-$this->validFrom;
if ($this->lifetime < 180 || $this->lifetime > 86400) {
throw new PlivoValidationException("lifetime out of [180, 86400]");
}
}
$this->uid = $uid?:$this->username."-".microtime(true);
}
/**
* Adds voice calling permissions to the token
*
* @param bool $incoming
* @param bool $outgoing
*/
public function addVoiceGrants($incoming = false, $outgoing = false)
{
$this->grants = array(
"voice" => array(
"incoming_allow" => $incoming,
"outgoing_allow" => $outgoing
)
);
}
/**
* Returns JWT
* @returns string $jwt
*/
public function toJwt() {
$key = $this->basicAuth->getAuthToken();
$headers = array(
"typ" => "JWT",
"alg" => "HS256",
"cty" => "plivo;v=1"
);
$payload = array(
"jti" => $this->uid,
"iss" => $this->basicAuth->getAuthId(),
"sub" => $this->username,
"nbf" => $this->validFrom,
"exp" => $this->validFrom + $this->lifetime,
"grants" => $this->grants
);
return JWT::encode($payload, $key, "HS256", null, $headers);
}
}
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