/** * @param BlockCypherHttpConfig $httpConfig * @param string $request * @param mixed $options * @return mixed|void * @throws BlockCypherConfigurationException * @throws BlockCypherInvalidCredentialException * @throws BlockCypherMissingCredentialException */ public function handle($httpConfig, $request, $options) { $credential = $this->apiContext->getCredential(); $config = $this->apiContext->getConfig(); if ($credential == null) { // Try picking credentials from the config file $credMgr = BlockCypherCredentialManager::getInstance($config); $credValues = $credMgr->getCredentialObject(); if (!is_array($credValues)) { throw new BlockCypherMissingCredentialException("Empty or invalid credentials passed"); } $credential = new SimpleTokenCredential($credValues['accessToken']); } if ($credential == null || !$credential instanceof SimpleTokenCredential) { throw new BlockCypherInvalidCredentialException("Invalid credentials passed"); } $path = isset($options['path']) ? $options['path'] : ''; $url = $this->getAbsoluteUrl($path, $this->apiContext); $httpConfig->setUrl($url); if (!array_key_exists("User-Agent", $httpConfig->getHeaders())) { $httpConfig->addHeader("User-Agent", BlockCypherUserAgent::getValue(BlockCypherConstants::SDK_NAME, BlockCypherConstants::SDK_VERSION)); } /*if (!is_null($credential) && $credential instanceof SimpleTokenCredential && is_null($httpConfig->getHeader('Authorization'))) { $httpConfig->addHeader('Authorization', "Bearer " . $credential->getAccessToken($config), false); }*/ if ($httpConfig->getMethod() == 'POST' || $httpConfig->getMethod() == 'PUT') { $httpConfig->addHeader('BlockCypher-Request-Id', $this->apiContext->getRequestId()); } // Add any additional Headers that they may have provided $headers = $this->apiContext->getRequestHeaders(); foreach ($headers as $key => $value) { $httpConfig->addHeader($key, $value); } }
/** * Executes an HTTP request * * @param string $data query string OR POST content as a string * @return mixed * @throws BlockCypherConnectionException */ public function execute($data) { //Initialize the logger $this->logger->info($this->httpConfig->getMethod() . ' ' . $this->httpConfig->getUrl()); //Initialize Curl Options $ch = curl_init($this->httpConfig->getUrl()); curl_setopt_array($ch, $this->httpConfig->getCurlOptions()); curl_setopt($ch, CURLOPT_URL, $this->httpConfig->getUrl()); curl_setopt($ch, CURLOPT_HEADER, true); curl_setopt($ch, CURLINFO_HEADER_OUT, true); curl_setopt($ch, CURLOPT_HTTPHEADER, $this->getHttpHeaders()); //Determine Curl Options based on Method switch ($this->httpConfig->getMethod()) { case 'POST': curl_setopt($ch, CURLOPT_POST, true); case 'PUT': case 'PATCH': case 'DELETE': curl_setopt($ch, CURLOPT_POSTFIELDS, $data); break; } //Default Option if Method not of given types in switch case if ($this->httpConfig->getMethod() != NULL) { curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $this->httpConfig->getMethod()); } //Logging Each Headers for debugging purposes foreach ($this->getHttpHeaders() as $header) { //TODO: Strip out credentials and other secure info when logging. // $this->logger->debug($header); } //Execute Curl Request $result = curl_exec($ch); //Retrieve Response Status $httpStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE); //Retry if Certificate Exception if (curl_errno($ch) == 60) { $this->logger->info("Invalid or no certificate authority found - Retrying using bundled CA certs file"); curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem'); $result = curl_exec($ch); //Retrieve Response Status $httpStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE); } //Retry if Failing $retries = 0; if (in_array($httpStatus, self::$retryCodes) && $this->httpConfig->getHttpRetryCount() != null) { $this->logger->info("Got {$httpStatus} response from server. Retrying"); do { $result = curl_exec($ch); //Retrieve Response Status $httpStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE); } while (in_array($httpStatus, self::$retryCodes) && ++$retries < $this->httpConfig->getHttpRetryCount()); } //Throw Exception if Retries and Certificates does not work if (curl_errno($ch)) { $ex = new BlockCypherConnectionException($this->httpConfig->getUrl(), curl_error($ch), curl_errno($ch)); curl_close($ch); throw $ex; } // Get Request and Response Headers $requestHeaders = curl_getinfo($ch, CURLINFO_HEADER_OUT); //Using alternative solution to CURLINFO_HEADER_SIZE as it throws invalid number when called using PROXY. $responseHeaderSize = strlen($result) - curl_getinfo($ch, CURLINFO_SIZE_DOWNLOAD); $responseHeaders = substr($result, 0, $responseHeaderSize); $result = substr($result, $responseHeaderSize); //$this->logger->debug("Request Retries \t: " . $retries); $this->logger->debug("Request Headers \t: " . str_replace("\r\n", ", ", $requestHeaders)); $this->logger->debug(($data && $data != '' ? "Request Data\t\t: " . $data : "No Request Payload") . "\n" . str_repeat('-', 128) . "\n"); $this->logger->info("Response Status \t: " . $httpStatus); $this->logger->debug("Response Headers\t: " . str_replace("\r\n", ", ", $responseHeaders)); //Close the curl request curl_close($ch); //More Exceptions based on HttpStatus Code if (in_array($httpStatus, self::$retryCodes)) { $ex = new BlockCypherConnectionException($this->httpConfig->getUrl(), "Got Http response code {$httpStatus} when accessing {$this->httpConfig->getUrl()}. " . "Retried {$retries} times."); $ex->setData($result); $this->logger->error("Got Http response code {$httpStatus} when accessing {$this->httpConfig->getUrl()}. " . "Retried {$retries} times." . $result); $this->logger->debug("\n\n" . str_repeat('=', 128) . "\n"); throw $ex; } else { if ($httpStatus < 200 || $httpStatus >= 300) { $ex = new BlockCypherConnectionException($this->httpConfig->getUrl(), "Got Http response code {$httpStatus} when accessing {$this->httpConfig->getUrl()}.", $httpStatus); $ex->setData($result); $this->logger->error("Got Http response code {$httpStatus} when accessing {$this->httpConfig->getUrl()}. " . $result); $this->logger->debug("\n\n" . str_repeat('=', 128) . "\n"); throw $ex; } } $this->logger->debug(($result && $result != '' ? "Response Data \t: " . $result : "No Response Body") . "\n\n" . str_repeat('=', 128) . "\n"); //Return result object return $result; }