Viewing file:  ApiRequestor.php (12.7 KB) -rwxr-xr-x
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<?php
namespace Telnyx;
/**
* Class ApiRequestor
*
* @package Telnyx
*/
class ApiRequestor
{
/**
* @var string|null
*/
private $_apiKey;
/**
* @var string
*/
private $_apiBase;
/**
* @var HttpClient\ClientInterface
*/
private static $_httpClient;
/**
* @var RequestTelemetry
*/
private static $requestTelemetry;
/**
* ApiRequestor constructor.
*
* @param string|null $apiKey
* @param string|null $apiBase
*/
public function __construct($apiKey = null, $apiBase = null)
{
$this->_apiKey = $apiKey;
if (!$apiBase) {
$apiBase = Telnyx::$apiBase;
}
$this->_apiBase = $apiBase;
}
/**
* Creates a telemetry json blob for use in 'X-Telnyx-Client-Telemetry' headers
* @static
*
* @param RequestTelemetry $requestTelemetry
* @return string
*/
private static function _telemetryJson($requestTelemetry)
{
$payload = array(
'last_request_metrics' => array(
'request_id' => $requestTelemetry->requestId,
'request_duration_ms' => $requestTelemetry->requestDuration,
));
$result = json_encode($payload);
if ($result != false) {
return $result;
} else {
Telnyx::getLogger()->error("Serializing telemetry payload failed!");
return "{}";
}
}
/**
* @static
*
* @param ApiResource|bool|array|mixed $d
*
* @return ApiResource|array|string|mixed
*/
private static function _encodeObjects($d)
{
if ($d instanceof ApiResource) {
return Util\Util::utf8($d->id);
} elseif ($d === true) {
return 'true';
} elseif ($d === false) {
return 'false';
} elseif (is_array($d)) {
$res = [];
foreach ($d as $k => $v) {
$res[$k] = self::_encodeObjects($v);
}
return $res;
} else {
return Util\Util::utf8($d);
}
}
/**
* @param string $method
* @param string $url
* @param null|array $params
* @param null|array $headers
*
* @throws Exception\ApiErrorException
*
* @return array tuple containing (ApiReponse, API key)
*/
public function request($method, $url, $params = null, $headers = null)
{
$params = $params ?: [];
$headers = $headers ?: [];
list($rbody, $rcode, $rheaders, $myApiKey) = $this->_requestRaw($method, $url, $params, $headers);
$json = $this->_interpretResponse($rbody, $rcode, $rheaders);
$resp = new ApiResponse($rbody, $rcode, $rheaders, $json);
return [$resp, $myApiKey];
}
/**
* @param string $rbody a JSON string
* @param int $rcode
* @param array $rheaders
* @param array $resp
*
* @throws Exception\UnexpectedValueException
* @throws Exception\ApiErrorException
*/
public function handleErrorResponse($rbody, $rcode, $rheaders, $resp)
{
if (!\is_array($resp) || !isset($resp['errors'])) {
$msg = "Invalid response object from API: {$rbody} "
. "(HTTP response code was {$rcode})";
throw new Exception\UnexpectedValueException($msg);
}
$errorData = $resp['errors'];
$error = null;
if (!$error) {
$error = self::_specificAPIError($rbody, $rcode, $rheaders, $resp, $errorData);
}
throw $error;
}
/**
* @static
*
* @param string $rbody
* @param int $rcode
* @param array $rheaders
* @param array $resp
* @param array $errorData
*
* @return Exception\ApiErrorException
*/
private static function _specificAPIError($rbody, $rcode, $rheaders, $resp, $errorData)
{
$msg = isset($errorData[0]['detail']) ? $errorData[0]['detail'] : (isset($errorData[0]['title']) ? $errorData[0]['title'] : null) ;
$param = isset($errorData[0]['param']) ? $errorData[0]['param'] : null;
$code = isset($errorData[0]['code']) ? $errorData[0]['code'] : null;
$type = isset($errorData[0]['type']) ? $errorData[0]['type'] : null;
switch ($rcode) {
//case 400:
// if ('idempotency_error' === $type) {
// return Exception\IdempotencyException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
// }
// no break
case 404:
return Exception\InvalidRequestException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code, $param);
case 401:
return Exception\AuthenticationException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
case 403:
return Exception\PermissionException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
case 429:
return Exception\RateLimitException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code, $param);
default:
return Exception\UnknownApiErrorException::factory($msg, $rcode, $rbody, $resp, $rheaders, $code);
}
}
/**
* @static
*
* @param null|array $appInfo
*
* @return null|string
*/
private static function _formatAppInfo($appInfo)
{
if ($appInfo !== null) {
$string = $appInfo['name'];
if ($appInfo['version'] !== null) {
$string .= '/' . $appInfo['version'];
}
if ($appInfo['url'] !== null) {
$string .= ' (' . $appInfo['url'] . ')';
}
return $string;
} else {
return null;
}
}
/**
* @static
*
* @param string $apiKey
* @param null $clientInfo
*
* @return array
*/
private static function _defaultHeaders($apiKey, $clientInfo = null)
{
$uaString = 'Telnyx/v2 PhpBindings/' . Telnyx::VERSION;
$langVersion = phpversion();
$uname = php_uname();
$appInfo = Telnyx::getAppInfo();
$ua = [
'bindings_version' => Telnyx::VERSION,
'lang' => 'php',
'lang_version' => $langVersion,
'publisher' => 'telnyx',
'uname' => $uname,
];
if ($clientInfo) {
$ua = array_merge($clientInfo, $ua);
}
if ($appInfo !== null) {
$uaString .= ' ' . self::_formatAppInfo($appInfo);
$ua['application'] = $appInfo;
}
$defaultHeaders = [
'X-Telnyx-Client-User-Agent' => json_encode($ua),
'User-Agent' => $uaString,
'Authorization' => 'Bearer ' . $apiKey,
];
return $defaultHeaders;
}
/**
* @param string $method
* @param string $url
* @param array $params
* @param array $headers
*
* @throws Exception\AuthenticationException
* @throws Exception\ApiConnectionException
*
* @return array
*/
public function _requestRaw($method, $url, $params, $headers) // Note: this is currently only public for TelephonyCredential's token() request
{
$myApiKey = $this->_apiKey;
if (!$myApiKey) {
$myApiKey = Telnyx::$apiKey;
}
if (!$myApiKey) {
$msg = 'No API key provided. (HINT: set your API key using '
. '"Telnyx::setApiKey(<API-KEY>)". You can generate API keys from '
. 'the Telnyx web interface. See https://developers.telnyx.com/docs/v2/development/authentication '
. 'for details, or email support@telnyx.com if you have any questions.';
throw new Exception\AuthenticationException($msg);
}
// Clients can supply arbitrary additional keys to be included in the
// X-Telnyx-Client-User-Agent header via the optional getUserAgentInfo()
// method
$clientUAInfo = null;
if (method_exists($this->httpClient(), 'getUserAgentInfo')) {
$clientUAInfo = $this->httpClient()->getUserAgentInfo();
}
$absUrl = $this->_apiBase.$url;
$params = self::_encodeObjects($params);
$defaultHeaders = $this->_defaultHeaders($myApiKey, $clientUAInfo);
if (Telnyx::$apiVersion) {
$defaultHeaders['Telnyx-Version'] = Telnyx::$apiVersion;
}
if (Telnyx::$accountId) {
$defaultHeaders['Telnyx-Account'] = Telnyx::$accountId;
}
if (Telnyx::$enableTelemetry && self::$requestTelemetry != null) {
$defaultHeaders["X-Telnyx-Client-Telemetry"] = self::_telemetryJson(self::$requestTelemetry);
}
$hasFile = false;
$hasCurlFile = class_exists('\CURLFile', false);
foreach ($params as $k => $v) {
if (is_resource($v)) {
$hasFile = true;
$params[$k] = self::_processResourceParam($v, $hasCurlFile);
} elseif ($hasCurlFile && $v instanceof \CURLFile) {
$hasFile = true;
}
}
if ($hasFile) {
$defaultHeaders['Content-Type'] = 'multipart/form-data';
} else {
$defaultHeaders['Content-Type'] = 'application/json';
}
$combinedHeaders = array_merge($defaultHeaders, $headers);
$rawHeaders = [];
foreach ($combinedHeaders as $header => $value) {
$rawHeaders[] = $header . ': ' . $value;
}
$requestStartMs = Util\Util::currentTimeMillis();
list($rbody, $rcode, $rheaders) = $this->httpClient()->request(
$method,
$absUrl,
$rawHeaders,
$params,
$hasFile
);
if (isset($rheaders['request-id'])) {
self::$requestTelemetry = new RequestTelemetry(
$rheaders['request-id'],
Util\Util::currentTimeMillis() - $requestStartMs
);
}
return [$rbody, $rcode, $rheaders, $myApiKey];
}
/**
* @param resource $resource
* @param bool $hasCurlFile
*
* @throws Exception\InvalidArgumentException
*
* @return \CURLFile|string
*/
private function _processResourceParam($resource, $hasCurlFile)
{
if (get_resource_type($resource) !== 'stream') {
throw new Exception\InvalidArgumentException(
'Attempted to upload a resource that is not a stream'
);
}
$metaData = stream_get_meta_data($resource);
if ($metaData['wrapper_type'] !== 'plainfile') {
throw new Exception\InvalidArgumentException(
'Only plainfile resource streams are supported'
);
}
if ($hasCurlFile) {
// We don't have the filename or mimetype, but the API doesn't care
return new \CURLFile($metaData['uri']);
} else {
return '@'.$metaData['uri'];
}
}
/**
* @param string $rbody
* @param int $rcode
* @param array $rheaders
*
* @throws Exception\UnexpectedValueException
* @throws Exception\ApiErrorException
*
* @return array
*/
public function _interpretResponse($rbody, $rcode, $rheaders)
{
$resp = json_decode($rbody, true);
if (isset($resp['data'])) {
// See if this is NOT a \Telnyx\Collection because Collections are not explicitly specified by the API
if (isset($resp['data']['record_type']) && !isset($resp['data'][0])) {
$resp = $resp['data']; // Move [data] to the parent node because it is a single entry, not a collection
}
}
$jsonError = json_last_error();
if ($resp === null && $jsonError !== JSON_ERROR_NONE) {
$msg = "Invalid response body from API: $rbody "
. "(HTTP response code was $rcode, json_last_error() was $jsonError)";
throw new Exception\UnexpectedValueException($msg, $rcode);
}
if ($rcode < 200 || $rcode >= 300) {
$this->handleErrorResponse($rbody, $rcode, $rheaders, $resp);
}
return $resp;
}
/**
* @static
*
* @param HttpClient\ClientInterface $client
*/
public static function setHttpClient($client)
{
self::$_httpClient = $client;
}
/**
* @static
*
* Resets any stateful telemetry data
*/
public static function resetTelemetry()
{
self::$requestTelemetry = null;
}
/**
* @return HttpClient\ClientInterface
*/
private function httpClient()
{
if (!self::$_httpClient) {
self::$_httpClient = HttpClient\CurlClient::instance();
}
return self::$_httpClient;
}
}
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