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<?php |
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|
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namespace FluentForm\App\Services\Integrations\MailChimp; |
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|
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/** |
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* Super-simple, minimum abstraction MailChimp API v3 wrapper |
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* MailChimp API v3: http://developer.mailchimp.com |
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* This wrapper: https://github.com/drewm/mailchimp-api |
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* |
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* @author Drew McLellan <drew.mclellan@gmail.com> |
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* @version 2.4 |
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*/ |
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class MailChimp |
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{ |
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private $api_key; |
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private $api_endpoint = 'https://<dc>.api.mailchimp.com/3.0'; |
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|
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const TIMEOUT = 10; |
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|
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/* SSL Verification |
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Read before disabling: |
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http://snippets.webaware.com.au/howto/stop-turning-off-curlopt_ssl_verifypeer-and-fix-your-php-config/ |
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*/ |
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public $verify_ssl = true; |
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|
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private $request_successful = false; |
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private $last_error = ''; |
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private $last_response = array(); |
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private $last_request = array(); |
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|
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/** |
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* Create a new instance |
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* @param string $api_key Your MailChimp API key |
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* @param string $api_endpoint Optional custom API endpoint |
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* @throws \Exception |
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*/ |
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public function __construct($api_key, $api_endpoint = null) |
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{ |
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$this->api_key = $api_key; |
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|
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if ($api_endpoint === null) { |
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if (strpos($this->api_key, '-') === false) { |
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throw new \Exception("Invalid MailChimp API key `{$api_key}` supplied."); |
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} |
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list(, $data_center) = explode('-', $this->api_key); |
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$this->api_endpoint = str_replace('<dc>', $data_center, $this->api_endpoint); |
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} else { |
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$this->api_endpoint = $api_endpoint; |
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} |
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|
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$this->last_response = array('headers' => null, 'body' => null); |
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} |
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|
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/** |
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* @return string The url to the API endpoint |
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*/ |
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public function getApiEndpoint() |
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{ |
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return $this->api_endpoint; |
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} |
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|
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|
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/** |
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* Convert an email address into a 'subscriber hash' for identifying the subscriber in a method URL |
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* @param string $email The subscriber's email address |
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* @return string Hashed version of the input |
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*/ |
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public function subscriberHash($email) |
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{ |
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return md5(strtolower($email)); |
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} |
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|
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/** |
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* Was the last request successful? |
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* @return bool True for success, false for failure |
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*/ |
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public function success() |
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{ |
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return $this->request_successful; |
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} |
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|
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/** |
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* Get the last error returned by either the network transport, or by the API. |
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* If something didn't work, this should contain the string describing the problem. |
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* @return string|false describing the error |
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*/ |
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public function getLastError() |
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{ |
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return $this->last_error ?: false; |
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} |
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|
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/** |
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* Get an array containing the HTTP headers and the body of the API response. |
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* @return array Assoc array with keys 'headers' and 'body' |
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*/ |
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public function getLastResponse() |
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{ |
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return $this->last_response; |
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} |
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|
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/** |
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* Get an array containing the HTTP headers and the body of the API request. |
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* @return array Assoc array |
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*/ |
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public function getLastRequest() |
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{ |
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return $this->last_request; |
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} |
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|
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/** |
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* Make an HTTP DELETE request - for deleting data |
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* @param string $method URL of the API request method |
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* @param array $args Assoc array of arguments (if any) |
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* @param int $timeout Timeout limit for request in seconds |
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* @return array|false Assoc array of API response, decoded from JSON |
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*/ |
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public function delete($method, $args = array(), $timeout = self::TIMEOUT) |
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{ |
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return $this->makeRequest('delete', $method, $args, $timeout); |
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} |
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|
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/** |
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* Make an HTTP GET request - for retrieving data |
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* @param string $method URL of the API request method |
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* @param array $args Assoc array of arguments (usually your data) |
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* @param int $timeout Timeout limit for request in seconds |
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* @return array|false Assoc array of API response, decoded from JSON |
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*/ |
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public function get($method, $args = array(), $timeout = self::TIMEOUT) |
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{ |
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return $this->makeRequest('get', $method, $args, $timeout); |
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} |
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|
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/** |
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* Make an HTTP PATCH request - for performing partial updates |
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* @param string $method URL of the API request method |
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* @param array $args Assoc array of arguments (usually your data) |
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* @param int $timeout Timeout limit for request in seconds |
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* @return array|false Assoc array of API response, decoded from JSON |
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*/ |
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public function patch($method, $args = array(), $timeout = self::TIMEOUT) |
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{ |
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return $this->makeRequest('patch', $method, $args, $timeout); |
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} |
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|
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/** |
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* Make an HTTP POST request - for creating and updating items |
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* @param string $method URL of the API request method |
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* @param array $args Assoc array of arguments (usually your data) |
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* @param int $timeout Timeout limit for request in seconds |
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* @return array|false Assoc array of API response, decoded from JSON |
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*/ |
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public function post($method, $args = array(), $timeout = self::TIMEOUT) |
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{ |
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return $this->makeRequest('post', $method, $args, $timeout); |
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} |
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|
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/** |
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* Make an HTTP PUT request - for creating new items |
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* @param string $method URL of the API request method |
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* @param array $args Assoc array of arguments (usually your data) |
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* @param int $timeout Timeout limit for request in seconds |
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* @return array|false Assoc array of API response, decoded from JSON |
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* @throws \Exception |
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*/ |
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public function put($method, $args = array(), $timeout = self::TIMEOUT) |
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{ |
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return $this->makeRequest('put', $method, $args, $timeout); |
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} |
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|
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/** |
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* Performs the underlying HTTP request. Not very exciting. |
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* @param string $http_verb The HTTP verb to use: get, post, put, patch, delete |
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* @param string $method The API method to be called |
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* @param array $args Assoc array of parameters to be passed |
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* @param int $timeout |
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* @return array|false Assoc array of decoded result |
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* @throws \Exception |
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*/ |
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private function makeRequest($http_verb, $method, $args = array(), $timeout = self::TIMEOUT) |
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{ |
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if (!function_exists('curl_init') || !function_exists('curl_setopt')) { |
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throw new \Exception("cURL support is required, but can't be found."); |
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} |
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|
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$url = $this->api_endpoint . '/' . $method; |
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|
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$response = $this->prepareStateForRequest($http_verb, $method, $url, $timeout); |
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|
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$httpHeader = array( |
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'Accept: application/vnd.api+json', |
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'Content-Type: application/vnd.api+json', |
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'Authorization: apikey ' . $this->api_key |
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); |
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|
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if (isset($args["language"])) { |
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$httpHeader[] = "Accept-Language: " . $args["language"]; |
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} |
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|
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$ch = curl_init(); |
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curl_setopt($ch, CURLOPT_URL, $url); |
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curl_setopt($ch, CURLOPT_HTTPHEADER, $httpHeader); |
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curl_setopt($ch, CURLOPT_USERAGENT, 'DrewM/MailChimp-API/3.0 (github.com/drewm/mailchimp-api)'); |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($ch, CURLOPT_VERBOSE, true); |
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curl_setopt($ch, CURLOPT_HEADER, true); |
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curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); |
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $this->verify_ssl); |
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curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0); |
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curl_setopt($ch, CURLOPT_ENCODING, ''); |
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curl_setopt($ch, CURLINFO_HEADER_OUT, true); |
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|
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switch ($http_verb) { |
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case 'post': |
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curl_setopt($ch, CURLOPT_POST, true); |
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$this->attachRequestPayload($ch, $args); |
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break; |
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|
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case 'get': |
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$query = http_build_query($args, '', '&'); |
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curl_setopt($ch, CURLOPT_URL, $url . '?' . $query); |
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break; |
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|
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case 'delete': |
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'DELETE'); |
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break; |
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|
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case 'patch': |
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PATCH'); |
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$this->attachRequestPayload($ch, $args); |
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break; |
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|
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case 'put': |
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT'); |
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$this->attachRequestPayload($ch, $args); |
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break; |
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} |
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|
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$responseContent = curl_exec($ch); |
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$response['headers'] = curl_getinfo($ch); |
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$response = $this->setResponseState($response, $responseContent, $ch); |
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$formattedResponse = $this->formatResponse($response); |
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|
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curl_close($ch); |
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|
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$this->determineSuccess($response, $formattedResponse, $timeout); |
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|
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return $formattedResponse; |
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} |
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|
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/** |
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* @param string $http_verb |
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* @param string $method |
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* @param string $url |
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* @param integer $timeout |
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*/ |
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private function prepareStateForRequest($http_verb, $method, $url, $timeout) |
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{ |
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$this->last_error = ''; |
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|
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$this->request_successful = false; |
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|
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$this->last_response = array( |
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'headers' => null, // array of details from curl_getinfo() |
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'httpHeaders' => null, // array of HTTP headers |
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'body' => null // content of the response |
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); |
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|
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$this->last_request = array( |
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'method' => $http_verb, |
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'path' => $method, |
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'url' => $url, |
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'body' => '', |
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'timeout' => $timeout, |
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); |
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|
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return $this->last_response; |
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} |
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|
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/** |
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* Get the HTTP headers as an array of header-name => header-value pairs. |
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* |
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* The "Link" header is parsed into an associative array based on the |
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* rel names it contains. The original value is available under |
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* the "_raw" key. |
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* |
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* @param string $headersAsString |
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* @return array |
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*/ |
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private function getHeadersAsArray($headersAsString) |
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{ |
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$headers = array(); |
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|
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foreach (explode("\r\n", $headersAsString) as $i => $line) { |
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if ($i === 0) { // HTTP code |
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continue; |
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} |
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|
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$line = trim($line); |
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if (empty($line)) { |
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continue; |
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} |
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|
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list($key, $value) = explode(': ', $line); |
| 305 |
|
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if ($key == 'Link') { |
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$value = array_merge( |
| 308 |
array('_raw' => $value), |
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$this->getLinkHeaderAsArray($value) |
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); |
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} |
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|
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$headers[$key] = $value; |
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} |
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|
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return $headers; |
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} |
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|
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/** |
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* Extract all rel => URL pairs from the provided Link header value |
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* |
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* Mailchimp only implements the URI reference and relation type from |
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* RFC 5988, so the value of the header is something like this: |
| 324 |
* |
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* 'https://us13.api.mailchimp.com/schema/3.0/Lists/Instance.json; rel="describedBy", <https://us13.admin.mailchimp.com/lists/members/?id=XXXX>; rel="dashboard"' |
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* |
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* @param string $linkHeaderAsString |
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* @return array |
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*/ |
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private function getLinkHeaderAsArray($linkHeaderAsString) |
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{ |
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$urls = array(); |
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|
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if (preg_match_all('/<(.*?)>\s*;\s*rel="(.*?)"\s*/', $linkHeaderAsString, $matches)) { |
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foreach ($matches[2] as $i => $relName) { |
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$urls[$relName] = $matches[1][$i]; |
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} |
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} |
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|
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return $urls; |
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} |
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|
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/** |
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* Encode the data and attach it to the request |
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* @param resource $ch cURL session handle, used by reference |
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* @param array $data Assoc array of data to attach |
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*/ |
| 348 |
private function attachRequestPayload(&$ch, $data) |
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{ |
| 350 |
$encoded = json_encode($data); |
| 351 |
$this->last_request['body'] = $encoded; |
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curl_setopt($ch, CURLOPT_POSTFIELDS, $encoded); |
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} |
| 354 |
|
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/** |
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* Decode the response and format any error messages for debugging |
| 357 |
* @param array $response The response from the curl request |
| 358 |
* @return array|false The JSON decoded into an array |
| 359 |
*/ |
| 360 |
private function formatResponse($response) |
| 361 |
{ |
| 362 |
$this->last_response = $response; |
| 363 |
|
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if (!empty($response['body'])) { |
| 365 |
return json_decode($response['body'], true); |
| 366 |
} |
| 367 |
|
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return false; |
| 369 |
} |
| 370 |
|
| 371 |
/** |
| 372 |
* Do post-request formatting and setting state from the response |
| 373 |
* @param array $response The response from the curl request |
| 374 |
* @param string $responseContent The body of the response from the curl request |
| 375 |
* * @return array The modified response |
| 376 |
*/ |
| 377 |
private function setResponseState($response, $responseContent, $ch) |
| 378 |
{ |
| 379 |
if ($responseContent === false) { |
| 380 |
$this->last_error = curl_error($ch); |
| 381 |
} else { |
| 382 |
|
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$headerSize = $response['headers']['header_size']; |
| 384 |
|
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$response['httpHeaders'] = $this->getHeadersAsArray(substr($responseContent, 0, $headerSize)); |
| 386 |
$response['body'] = substr($responseContent, $headerSize); |
| 387 |
|
| 388 |
if (isset($response['headers']['request_header'])) { |
| 389 |
$this->last_request['headers'] = $response['headers']['request_header']; |
| 390 |
} |
| 391 |
} |
| 392 |
|
| 393 |
return $response; |
| 394 |
} |
| 395 |
|
| 396 |
/** |
| 397 |
* Check if the response was successful or a failure. If it failed, store the error. |
| 398 |
* @param array $response The response from the curl request |
| 399 |
* @param array|false $formattedResponse The response body payload from the curl request |
| 400 |
* @param int $timeout The timeout supplied to the curl request. |
| 401 |
* @return bool If the request was successful |
| 402 |
*/ |
| 403 |
private function determineSuccess($response, $formattedResponse, $timeout) |
| 404 |
{ |
| 405 |
$status = $this->findHTTPStatus($response, $formattedResponse); |
| 406 |
|
| 407 |
if ($status >= 200 && $status <= 299) { |
| 408 |
$this->request_successful = true; |
| 409 |
return true; |
| 410 |
} |
| 411 |
|
| 412 |
if (isset($formattedResponse['detail'])) { |
| 413 |
$this->last_error = sprintf('%d: %s', $formattedResponse['status'], $formattedResponse['detail']); |
| 414 |
return false; |
| 415 |
} |
| 416 |
|
| 417 |
if( $timeout > 0 && $response['headers'] && $response['headers']['total_time'] >= $timeout ) { |
| 418 |
$this->last_error = sprintf('Request timed out after %f seconds.', $response['headers']['total_time'] ); |
| 419 |
return false; |
| 420 |
} |
| 421 |
|
| 422 |
$this->last_error = 'Unknown error, call getLastResponse() to find out what happened.'; |
| 423 |
return false; |
| 424 |
} |
| 425 |
|
| 426 |
/** |
| 427 |
* Find the HTTP status code from the headers or API response body |
| 428 |
* @param array $response The response from the curl request |
| 429 |
* @param array|false $formattedResponse The response body payload from the curl request |
| 430 |
* @return int HTTP status code |
| 431 |
*/ |
| 432 |
private function findHTTPStatus($response, $formattedResponse) |
| 433 |
{ |
| 434 |
if (!empty($response['headers']) && isset($response['headers']['http_code'])) { |
| 435 |
return (int) $response['headers']['http_code']; |
| 436 |
} |
| 437 |
|
| 438 |
if (!empty($response['body']) && isset($formattedResponse['status'])) { |
| 439 |
return (int) $formattedResponse['status']; |
| 440 |
} |
| 441 |
|
| 442 |
return 418; |
| 443 |
} |
| 444 |
} |
| 445 |
|
