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Twilio.php
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Thu, Feb 6, 12:57

Twilio.php
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<?php
/*
* Author: Neuman Vong neuman@twilio.com
* License: http://creativecommons.org/licenses/MIT/ MIT
* Link: https://twilio-php.readthedocs.org/en/latest/
*/
function Services_Twilio_autoload($className) {
if (substr($className, 0, 15) != 'Services_Twilio') {
return false;
}
$file = str_replace('_', '/', $className);
$file = str_replace('Services/', '', $file);
return include dirname(__FILE__) . "/$file.php";
}
spl_autoload_register('Services_Twilio_autoload');
/**
* Create a client to talk to the Twilio API.
*
*
* :param string $sid: Your Account SID
* :param string $token: Your Auth Token from `your dashboard
* <https://www.twilio.com/user/account>`_
* :param string $version: API version to use
* :param $_http: A HTTP client for making requests.
* :type $_http: :php:class:`Services_Twilio_TinyHttp`
* :param int $retryAttempts:
* Number of times to retry failed requests. Currently only idempotent
* requests (GET's and DELETE's) are retried.
*
* Here's an example:
*
* .. code-block:: php
*
* require('Services/Twilio.php');
* $client = new Services_Twilio('AC123', '456bef', null, null, 3);
* // Take some action with the client, etc.
*/
class Services_Twilio extends Services_Twilio_Resource
{
const USER_AGENT = 'twilio-php/3.12.4';
protected $http;
protected $retryAttempts;
protected $last_response;
protected $version;
protected $versions = array('2008-08-01', '2010-04-01');
public function __construct(
$sid,
$token,
$version = null,
Services_Twilio_TinyHttp $_http = null,
$retryAttempts = 1
) {
$this->version = in_array($version, $this->versions) ?
$version : end($this->versions);
if (null === $_http) {
if (!in_array('openssl', get_loaded_extensions())) {
throw new Services_Twilio_HttpException("The OpenSSL extension is required but not currently enabled. For more information, see http://php.net/manual/en/book.openssl.php");
}
if (in_array('curl', get_loaded_extensions())) {
$_http = new Services_Twilio_TinyHttp(
"https://api.twilio.com",
array(
"curlopts" => array(
CURLOPT_USERAGENT => self::qualifiedUserAgent(phpversion()),
CURLOPT_HTTPHEADER => array('Accept-Charset: utf-8'),
CURLOPT_CAINFO => dirname(__FILE__) . '/cacert.pem',
),
)
);
} else {
$_http = new Services_Twilio_HttpStream(
"https://api.twilio.com",
array(
"http_options" => array(
"http" => array(
"user_agent" => self::qualifiedUserAgent(phpversion()),
"header" => "Accept-Charset: utf-8\r\n",
),
"ssl" => array(
'verify_peer' => true,
'cafile' => dirname(__FILE__) . '/cacert.pem',
'verify_depth' => 5,
),
),
)
);
}
}
$_http->authenticate($sid, $token);
$this->http = $_http;
$this->accounts = new Services_Twilio_Rest_Accounts($this, "/{$this->version}/Accounts");
$this->account = $this->accounts->get($sid);
$this->retryAttempts = $retryAttempts;
}
/**
* Fully qualified user agent with the current PHP Version.
*
* :return: the user agent
* :rtype: string
*/
public static function qualifiedUserAgent($php_version) {
return self::USER_AGENT . " (php $php_version)";
}
/**
* Get the api version used by the rest client
*
* :return: the API version in use
* :returntype: string
*/
public function getVersion() {
return $this->version;
}
/**
* Get the retry attempt limit used by the rest client
*
* :return: the number of retry attempts
* :rtype: int
*/
public function getRetryAttempts() {
return $this->retryAttempts;
}
/**
* Construct a URI based on initial path, query params, and paging
* information
*
* We want to use the query params, unless we have a next_page_uri from the
* API.
*
* :param string $path: The request path (may contain query params if it's
* a next_page_uri)
* :param array $params: Query parameters to use with the request
* :param boolean $full_uri: Whether the $path contains the full uri
*
* :return: the URI that should be requested by the library
* :returntype: string
*/
public static function getRequestUri($path, $params, $full_uri = false) {
$json_path = $full_uri ? $path : "$path.json";
if (!$full_uri && !empty($params)) {
$query_path = $json_path . '?' . http_build_query($params, '', '&');
} else {
$query_path = $json_path;
}
return $query_path;
}
/**
* Helper method for implementing request retry logic
*
* :param array $callable: The function that makes an HTTP request
* :param string $uri: The URI to request
* :param int $retriesLeft: Number of times to retry
*
* :return: The object representation of the resource
* :rtype: object
*/
protected function _makeIdempotentRequest($callable, $uri, $retriesLeft) {
$response = call_user_func_array($callable, array($uri));
list($status, $headers, $body) = $response;
if ($status >= 500 && $retriesLeft > 0) {
return $this->_makeIdempotentRequest($callable, $uri, $retriesLeft - 1);
} else {
return $this->_processResponse($response);
}
}
/**
* GET the resource at the specified path.
*
* :param string $path: Path to the resource
* :param array $params: Query string parameters
* :param boolean $full_uri: Whether the full URI has been passed as an
* argument
*
* :return: The object representation of the resource
* :rtype: object
*/
public function retrieveData($path, $params = array(),
$full_uri = false
) {
$uri = self::getRequestUri($path, $params, $full_uri);
return $this->_makeIdempotentRequest(array($this->http, 'get'),
$uri, $this->retryAttempts);
}
/**
* DELETE the resource at the specified path.
*
* :param string $path: Path to the resource
* :param array $params: Query string parameters
*
* :return: The object representation of the resource
* :rtype: object
*/
public function deleteData($path, $params = array())
{
$uri = self::getRequestUri($path, $params);
return $this->_makeIdempotentRequest(array($this->http, 'delete'),
$uri, $this->retryAttempts);
}
/**
* POST to the resource at the specified path.
*
* :param string $path: Path to the resource
* :param array $params: Query string parameters
*
* :return: The object representation of the resource
* :rtype: object
*/
public function createData($path, $params = array())
{
$path = "$path.json";
$headers = array('Content-Type' => 'application/x-www-form-urlencoded');
$response = $this->http->post(
$path, $headers, self::buildQuery($params, '')
);
return $this->_processResponse($response);
}
/**
* Build a query string from query data
*
* :param array $queryData: An associative array of keys and values. The
* values can be a simple type or a list, in which case the list is
* converted to multiple query parameters with the same key.
* :param string $numericPrefix:
* :param string $queryStringStyle: Determine how to build the url
* - strict: Build a standards compliant query string without braces (can be hacked by using braces in key)
* - php: Build a PHP compatible query string with nested array syntax
* :return: The encoded query string
* :rtype: string
*/
public static function buildQuery($queryData, $numericPrefix = '') {
$query = '';
// Loop through all of the $query_data
foreach ($queryData as $key => $value) {
// If the key is an int, add the numeric_prefix to the beginning
if (is_int($key)) {
$key = $numericPrefix . $key;
}
// If the value is an array, we will end up recursing
if (is_array($value)) {
// Loop through the values
foreach ($value as $value2) {
// Add an arg_separator if needed
if ($query !== '') {
$query .= '&';
}
// Recurse
$query .= self::buildQuery(array($key => $value2), $numericPrefix);
}
} else {
// Add an arg_separator if needed
if ($query !== '') {
$query .= '&';
}
// Add the key and the urlencoded value (as a string)
$query .= $key . '=' . urlencode((string)$value);
}
}
return $query;
}
/**
* Convert the JSON encoded resource into a PHP object.
*
* :param array $response: 3-tuple containing status, headers, and body
*
* :return: PHP object decoded from JSON
* :rtype: object
* :throws: A :php:class:`Services_Twilio_RestException` if the Response is
* in the 300-500 range of status codes.
*/
private function _processResponse($response)
{
list($status, $headers, $body) = $response;
if ($status === 204) {
return true;
}
$decoded = json_decode($body);
if ($decoded === null) {
throw new Services_Twilio_RestException(
$status,
'Could not decode response body as JSON. ' .
'This likely indicates a 500 server error'
);
}
if (200 <= $status && $status < 300) {
$this->last_response = $decoded;
return $decoded;
}
throw new Services_Twilio_RestException(
$status,
isset($decoded->message) ? $decoded->message : '',
isset($decoded->code) ? $decoded->code : null,
isset($decoded->more_info) ? $decoded->more_info : null
);
}
}

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