new file mode 100644

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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 array|null $params

+     * @param array|null $headers

+     *

+     * @return array An array whose first element is an API response and second

+     *    element is the API key used to make the request.

+     * @throws Error\Api

+     * @throws Error\Authentication

+     * @throws Error\Card

+     * @throws Error\InvalidRequest

+     * @throws Error\Permission

+     * @throws Error\RateLimit

+     * @throws Error\Idempotency

+     * @throws Error\ApiConnection

+     */

+    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 Error\InvalidRequest if the error is caused by the user.

+     * @throws Error\Authentication if the error is caused by a lack of

+     *    permissions.

+     * @throws Error\Permission if the error is caused by insufficient

+     *    permissions.

+     * @throws Error\Card if the error is the error code is 402 (payment

+     *    required)

+     * @throws Error\InvalidRequest if the error is caused by the user.

+     * @throws Error\Idempotency if the error is caused by an idempotency key.

+     * @throws Error\Permission if the error is caused by insufficient

+     *    permissions.

+     * @throws Error\RateLimit if the error is caused by too many requests

+     *    hitting the API.

+     * @throws Error\Api otherwise.

+     */

+    public function handleErrorResponse($rbody, $rcode, $rheaders, $resp)

+    {

+        if (!is_array($resp) || !isset($resp['error'])) {

+            $msg = "Invalid response object from API: $rbody "

+              . "(HTTP response code was $rcode)";

+            throw new Error\Api($msg, $rcode, $rbody, $resp, $rheaders);

+        }

+

+        $errorData = $resp['error'];

+

+        #echo $rbody;exit;

+

+        $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 Error\RateLimit|Error\Idempotency|Error\InvalidRequest|Error\Authentication|Error\Card|Error\Permission|Error\Api

+     */

+    private static function _specificAPIError($rbody, $rcode, $rheaders, $resp, $errorData)

+    {

+        $msg = isset($errorData['message']) ? $errorData['message'] : null;

+        $param = isset($errorData['param']) ? $errorData['param'] : null;

+        $code = isset($errorData['code']) ? $errorData['code'] : null;

+        $type = isset($errorData['type']) ? $errorData['type'] : null;

+

+        switch ($rcode) {

+            case 400:

+                // 'rate_limit' code is deprecated, but left here for backwards compatibility

+                // for API versions earlier than 2015-09-08

+                if ($code == 'rate_limit') {

+                    return new Error\RateLimit($msg, $param, $rcode, $rbody, $resp, $rheaders);

+                }

+                if ($type == 'idempotency_error') {

+                    return new Error\Idempotency($msg, $rcode, $rbody, $resp, $rheaders);

+                }

+

+                // intentional fall-through

+                // no break

+            case 404:

+                return new Error\InvalidRequest($msg, $param, $rcode, $rbody, $resp, $rheaders);

+            case 401:

+                return new Error\Authentication($msg, $rcode, $rbody, $resp, $rheaders);

+            case 402:

+                return new Error\Card($msg, $param, $code, $rcode, $rbody, $resp, $rheaders);

+            case 403:

+                return new Error\Permission($msg, $rcode, $rbody, $resp, $rheaders);

+            case 429:

+                return new Error\RateLimit($msg, $param, $rcode, $rbody, $resp, $rheaders);

+            default:

+                return new Error\Api($msg, $rcode, $rbody, $resp, $rheaders);

+        }

+    }

+

+    /**

+     * @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

+     *

+     * @return array

+     * @throws Error\Api

+     * @throws Error\ApiConnection

+     * @throws Error\Authentication

+     */

+    private function _requestRaw($method, $url, $params, $headers)

+    {

+        $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 Error\Authentication($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 (array_key_exists('request-id', $rheaders)) {

+        if (property_exists($rheaders, 'request-id') && (null !== $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

+     *

+     * @return \CURLFile|string

+     * @throws Error\Api

+     */

+    private function _processResourceParam($resource, $hasCurlFile)

+    {

+        if (get_resource_type($resource) !== 'stream') {

+            throw new Error\Api(

+                'Attempted to upload a resource that is not a stream'

+            );

+        }

+

+        $metaData = stream_get_meta_data($resource);

+        if ($metaData['wrapper_type'] !== 'plainfile') {

+            throw new Error\Api(

+                '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

+     *

+     * @return mixed

+     * @throws Error\Api

+     * @throws Error\Authentication

+     * @throws Error\Card

+     * @throws Error\InvalidRequest

+     * @throws Error\Permission

+     * @throws Error\RateLimit

+     * @throws Error\Idempotency

+     */

+    private function _interpretResponse($rbody, $rcode, $rheaders)

+    {

+        $resp = json_decode($rbody, true);

+

+        // Move [data] to the parent node

+        if (isset($resp['data'])) {

+            $resp = $resp['data'];

+        }

+

+        $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 Error\Api($msg, $rcode, $rbody);

+        }

+

+        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;

+    }

+}