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<?php
include_once 'JWT.php';
/**
* Twilio API Capability Token generator
*
* @category Services
* @package Services_Twilio
* @author Justin Witz <justin.witz@twilio.com>
* @license http://creativecommons.org/licenses/MIT/ MIT
*/
class Services_Twilio_API_Capability
{
protected $accountSid;
protected $authToken;
private $version;
private $friendlyName;
private $policies;
public function __construct($accountSid, $authToken, $version, $friendlyName)
{
$this->accountSid = $accountSid;
$this->authToken = $authToken;
$this->version = $version;
$this->friendlyName = $friendlyName;
$this->policies = array();
}
public function addPolicyDeconstructed($url, $method, $queryFilter = array(), $postFilter = array(), $allow = true) {
$policy = new Policy($url, $method, $queryFilter, $postFilter, $allow);
array_push($this->policies, $policy);
return $policy;
}
public function allow($url, $method, $queryFilter = array(), $postFilter = array()) {
$this->addPolicyDeconstructed($url, $method, $queryFilter, $postFilter, true);
}
public function deny($url, $method, $queryFilter = array(), $postFilter = array()) {
$this->addPolicyDeconstructed($url, $method, $queryFilter, $postFilter, false);
}
/**
* @deprecated Please use {Services_Twilio_API_Capability.allow, Services_Twilio_API_Capability.disallow} instead
*/
public function addPolicy($policy) {
array_push($this->policies, $policy);
}
/**
* @deprecated Please use {Services_Twilio_API_Capability.allow, Services_Twilio_API_Capability.disallow} instead
*/
public function generatePolicy($url, $method, $queryFilter = array(), $postFilter = array(), $allow = true)
{
return $this->addPolicyDeconstructed($url, $method, $queryFilter, $postFilter, $allow);
}
/**
* @deprecated Please use {Services_Twilio_API_Capability.allow, Services_Twilio_API_Capability.disallow} instead
*/
public function generateAndAddPolicy($url, $method, $queryFilter = array(), $postFilter = array(), $allow = true) {
$this->addPolicyDeconstructed($url, $method, $queryFilter, $postFilter, $allow);
}
/**
* Generates a new token based on the credentials and permissions that
* previously has been granted to this token.
*
* @param $ttl the expiration time of the token (in seconds). Default
* value is 3600 (1hr)
* @param $extraAttributes extra attributes to be tied to the jwt.
* @return the newly generated token that is valid for $ttl seconds
*/
public function generateToken($ttl = 3600, $extraAttributes = null)
{
$payload = array(
'version' => $this->version,
'friendly_name' => $this->friendlyName,
'policies' => array(),
'iss' => $this->accountSid,
'exp' => time() + $ttl
);
if(isset($extraAttributes)) {
foreach ($extraAttributes as $key => $value) {
$payload[$key] = $value;
}
}
$policyStrings = array();
foreach ($this->policies as $policy) {
$policyStrings[] = $policy->toArray();
}
$payload['policies'] = $policyStrings;
return JWT::encode($payload, $this->authToken, 'HS256');
}
}
/**
* Twilio API Policy constructor
*
* @category Services
* @package Services_Twilio
* @author Justin Witz <justin.witz@twilio.com>
* @license http://creativecommons.org/licenses/MIT/ MIT
*/
class Policy
{
private $url;
private $method;
private $queryFilter;
private $postFilter;
private $allow;
public function __construct($url, $method, $queryFilter = array(), $postFilter = array(), $allow = true)
{
$this->url = $url;
$this->method = $method;
$this->queryFilter = $queryFilter;
$this->postFilter = $postFilter;
$this->allow = $allow;
}
public function addQueryFilter($queryFilter)
{
array_push($this->queryFilter, $queryFilter);
}
public function addPostFilter($postFilter)
{
array_push($this->postFilter, $postFilter);
}
public function toArray() {
$policy_array = array('url' => $this->url, 'method' => $this->method, 'allow' => $this->allow);
if (!is_null($this->queryFilter)) {
if (count($this->queryFilter) > 0 ) {
$policy_array['query_filter'] = $this->queryFilter;
} else {
$policy_array['query_filter'] = new stdClass();
}
}
if (!is_null($this->postFilter)) {
if (count($this->postFilter) > 0 ) {
$policy_array['post_filter'] = $this->postFilter;
} else {
$policy_array['post_filter'] = new stdClass();
}
}
return $policy_array;
}
}
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