MailChimp::getLastResponse() - Code Metrics - Inspection of "Add support for proxy" - drewm/mailchimp-api - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#243)

by Dominik

created 2018-12-17 16:26 UTC

MailChimp::getLastResponse() A

↳ Parent: MailChimp

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	4
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	0

<?php

namespace DrewM\MailChimp;

use GuzzleHttp\ClientInterface;
use GuzzleHttp\Psr7\Request;
use GuzzleHttp\Exception\RequestException;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;

/**
 * Super-simple, minimum abstraction MailChimp API v3 wrapper
 * MailChimp API v3: http://developer.mailchimp.com
 * This wrapper: https://github.com/drewm/mailchimp-api
 *
 * @author  Drew McLellan <[email protected]>
 * @version 2.5
 */
class MailChimp
{

    /**
     * @var ClientInterface
     */
    private $client;

    private $api_key;
    private $api_endpoint = 'https://<dc>.api.mailchimp.com/3.0';

    const TIMEOUT = 10;

    private $request_successful = false;
    private $last_error         = '';
    private $last_response      = array();
    private $last_request       = array();

    /**
     * Create a new instance
     *
     * @param string $api_key      Your MailChimp API key
     * @param string $api_endpoint Optional custom API endpoint
     *
     * @throws \Exception
     */
    public function __construct(ClientInterface $client, $api_key, $api_endpoint = null)
    {
        $this->client = $client;

        $this->api_key = $api_key;

        if ($api_endpoint === null) {
            if (strpos($this->api_key, '-') === false) {
                throw new \Exception("Invalid MailChimp API key supplied.");
            }
            list(, $data_center) = explode('-', $this->api_key);
            $this->api_endpoint = str_replace('<dc>', $data_center, $this->api_endpoint);
        } else {
            $this->api_endpoint = $api_endpoint;
        }

        $this->last_response = array('headers' => null, 'body' => null);
    }

    /**
     * Create a new instance of a Batch request. Optionally with the ID of an existing batch.
     *
     * @param string $batch_id Optional ID of an existing batch, if you need to check its status for example.
     *
     * @return Batch            New Batch object.
     */
    public function new_batch($batch_id = null)
    {
        return new Batch($this, $batch_id);
    }

    /**
     * @return string The url to the API endpoint
     */
    public function getApiEndpoint()
    {
        return $this->api_endpoint;
    }


    /**
     * Convert an email address into a 'subscriber hash' for identifying the subscriber in a method URL
     *
     * @param   string $email The subscriber's email address
     *
     * @return  string          Hashed version of the input
     */
    public function subscriberHash($email)
    {
        return md5(strtolower($email));
    }

    /**
     * Was the last request successful?
     *
     * @return bool  True for success, false for failure
     */
    public function success()
    {
        return $this->request_successful;
    }

    /**
     * Get the last error returned by either the network transport, or by the API.
     * If something didn't work, this should contain the string describing the problem.
     *
     * @return  string|false  describing the error
     */
    public function getLastError()
    {
        return $this->last_error ?: false;
    }

    /**
     * Get an array containing the HTTP headers and the body of the API response.
     *
     * @return array  Assoc array with keys 'headers' and 'body'
     */
    public function getLastResponse()
    {
        return $this->last_response;
    }

    /**
     * Get an array containing the HTTP headers and the body of the API request.
     *
     * @return array  Assoc array
     */
    public function getLastRequest()
    {
        return $this->last_request;
    }

    /**
     * Make an HTTP DELETE request - for deleting data
     *
     * @param   string $method  URL of the API request method
     * @param   array  $args    Assoc array of arguments (if any)
     * @param   int    $timeout Timeout limit for request in seconds
     *
     * @return  array|false   Assoc array of API response, decoded from JSON
     */
    public function delete($method, $args = array(), $timeout = self::TIMEOUT)
    {
        return $this->makeRequest('delete', $method, $args, $timeout);
    }

    /**
     * Make an HTTP GET request - for retrieving data
     *
     * @param   string $method  URL of the API request method
     * @param   array  $args    Assoc array of arguments (usually your data)
     * @param   int    $timeout Timeout limit for request in seconds
     *
     * @return  array|false   Assoc array of API response, decoded from JSON
     */
    public function get($method, $args = array(), $timeout = self::TIMEOUT)
    {
        return $this->makeRequest('get', $method, $args, $timeout);
    }

    /**
     * Make an HTTP PATCH request - for performing partial updates
     *
     * @param   string $method  URL of the API request method
     * @param   array  $args    Assoc array of arguments (usually your data)
     * @param   int    $timeout Timeout limit for request in seconds
     *
     * @return  array|false   Assoc array of API response, decoded from JSON
     */
    public function patch($method, $args = array(), $timeout = self::TIMEOUT)
    {
        return $this->makeRequest('patch', $method, $args, $timeout);
    }

    /**
     * Make an HTTP POST request - for creating and updating items
     *
     * @param   string $method  URL of the API request method
     * @param   array  $args    Assoc array of arguments (usually your data)
     * @param   int    $timeout Timeout limit for request in seconds
     *
     * @return  array|false   Assoc array of API response, decoded from JSON
     */
    public function post($method, $args = array(), $timeout = self::TIMEOUT)
    {
        return $this->makeRequest('post', $method, $args, $timeout);
    }

    /**
     * Make an HTTP PUT request - for creating new items
     *
     * @param   string $method  URL of the API request method
     * @param   array  $args    Assoc array of arguments (usually your data)
     * @param   int    $timeout Timeout limit for request in seconds
     *
     * @return  array|false   Assoc array of API response, decoded from JSON
     */
    public function put($method, $args = array(), $timeout = self::TIMEOUT)
    {
        return $this->makeRequest('put', $method, $args, $timeout);
    }

    /**
     * Performs the underlying HTTP request. Not very exciting.
     *
     * @param  string $http_verb The HTTP verb to use: get, post, put, patch, delete
     * @param  string $method    The API method to be called
     * @param  array  $args      Assoc array of parameters to be passed
     * @param int     $timeout
     *
     * @return array|false Assoc array of decoded result
     */
    private function makeRequest($http_verb, $method, $args = array(), $timeout = self::TIMEOUT)
    {
        $resource = $method;
        $method = strtoupper($http_verb);

        $uri = $this->api_endpoint . '/' . $resource;

        $dummyResponse = $this->prepareStateForRequest($method, $resource, $uri, $timeout);

        $headers = [
            'Accept' => ['application/vnd.api+json'],
            'Content-Type' => ['application/vnd.api+json'],
            'Authorization' => ['apikey ' . $this->api_key],
        ];

        if (isset($args['language'])) {
            $headers['Accept-Language'] = [$args['language']];
        }

        $body = null;

        switch ($method) {
            case 'POST':
            case 'PATCH':
            case 'PUT':
                $body = json_encode($args);
                $this->last_request['body'] = $body;
                break;
            case 'GET':
                $uri .= '?' . http_build_query($args, '', '&');
                break;
        }

        $request = new Request($method, $uri, $headers, $body);

        $start = microtime(true);

        $errorMessage = '';

        try {
            $response = $this->client->send($request);
        } catch (RequestException $e) {
            $errorMessage = $e->getMessage();
            if (null === $response = $e->getResponse()) {
                throw $e;
            }
        }

        $end = microtime(true);

        $requestHeader = $this->getRequestHeader($request);
        $responseHeader = $this->getResponseHeader($response);
        $responseBody = $responseHeader . (string) $response->getBody();

        $dummyResponse['headers'] = [
            'http_code' => $response->getStatusCode(),
            'header_size' => strlen($responseHeader),
            'total_time' => $end - $start,
            'request_header' => $requestHeader
        ];

        $dummyResponse = $this->setResponseState(
            $dummyResponse,
            '' === $errorMessage ? $responseBody : false,

            $errorMessage
        );

        $formattedResponse = $this->formatResponse($dummyResponse);

        $isSuccess = $this->determineSuccess($dummyResponse, $formattedResponse, $timeout);

        return is_array($formattedResponse) ? $formattedResponse : $isSuccess;
    }

    /**
     * @param RequestInterface $request
     * @return string
     */
    private function getRequestHeader(RequestInterface $request): string

    {
        $requestHeader = sprintf(
            "%s %s HTTP/%s\r\n",
            $request->getMethod(),
            $request->getRequestTarget(),
            $request->getProtocolVersion()
        );

        foreach ($request->getHeaders() as $headerName => $headerValues) {
            $requestHeader .= sprintf("%s: %s\r\n", $headerName, implode(', ', $headerValues));
        }

        $requestHeader .= "\r\n";

        return $requestHeader;
    }

    /**
     * @param ResponseInterface $response
     * @return string
     */
    private function getResponseHeader(ResponseInterface $response): string

    {
        $responseHeader = sprintf(
            "HTTP/%s %s %s\r\n",
            $response->getProtocolVersion(),
            $response->getStatusCode(),
            $response->getReasonPhrase()
        );

        foreach ($response->getHeaders() as $headerName => $headerValues) {
            $responseHeader .= sprintf("%s: %s\r\n", $headerName, implode(', ', $headerValues));
        }

        $responseHeader .= "\r\n";

        return $responseHeader;
    }

    /**
     * @param string  $http_verb
     * @param string  $method
     * @param string  $url
     * @param integer $timeout
     *
     * @return array
     */
    private function prepareStateForRequest($http_verb, $method, $url, $timeout)
    {
        $this->last_error = '';

        $this->request_successful = false;

        $this->last_response = array(
            'headers'     => null, // array of details from curl_getinfo()
            'httpHeaders' => null, // array of HTTP headers
            'body'        => null // content of the response
        );

        $this->last_request = array(
            'method'  => $http_verb,
            'path'    => $method,
            'url'     => $url,
            'body'    => '',
            'timeout' => $timeout,
        );

        return $this->last_response;
    }

    /**
     * Get the HTTP headers as an array of header-name => header-value pairs.
     *
     * The "Link" header is parsed into an associative array based on the
     * rel names it contains. The original value is available under
     * the "_raw" key.
     *
     * @param string $headersAsString
     *
     * @return array
     */
    private function getHeadersAsArray($headersAsString)
    {
        $headers = array();

        foreach (explode("\r\n", $headersAsString) as $i => $line) {
            if ($i === 0) { // HTTP code
                continue;
            }

            $line = trim($line);
            if (empty($line)) {
                continue;
            }

            list($key, $value) = explode(': ', $line);

            if ($key == 'Link') {
                $value = array_merge(
                    array('_raw' => $value),
                    $this->getLinkHeaderAsArray($value)
                );
            }

            $headers[$key] = $value;
        }

        return $headers;
    }

    /**
     * Extract all rel => URL pairs from the provided Link header value
     *
     * Mailchimp only implements the URI reference and relation type from
     * RFC 5988, so the value of the header is something like this:
     *
     * 'https://us13.api.mailchimp.com/schema/3.0/Lists/Instance.json; rel="describedBy",
     * <https://us13.admin.mailchimp.com/lists/members/?id=XXXX>; rel="dashboard"'
     *
     * @param string $linkHeaderAsString
     *
     * @return array
     */
    private function getLinkHeaderAsArray($linkHeaderAsString)
    {
        $urls = array();

        if (preg_match_all('/<(.*?)>\s*;\s*rel="(.*?)"\s*/', $linkHeaderAsString, $matches)) {
            foreach ($matches[2] as $i => $relName) {
                $urls[$relName] = $matches[1][$i];
            }
        }

        return $urls;
    }

    /**
     * Decode the response and format any error messages for debugging
     *
     * @param array $response The response from the curl request
     *
     * @return array|false    The JSON decoded into an array
     */
    private function formatResponse($response)
    {
        $this->last_response = $response;

        if (!empty($response['body'])) {
            return json_decode($response['body'], true);
        }

        return false;
    }

    /**
     * Do post-request formatting and setting state from the response
     *
     * @param array  $response        The response from the curl request
     * @param string $responseContent The body of the response from the curl request
     * @param string $errorMessage    The error message
     * @return array The modified response
     */
    private function setResponseState($response, $responseContent, $errorMessage)
    {
        if ($responseContent === false) {
            $this->last_error = $errorMessage;
        } else {
            $headerSize = $response['headers']['header_size'];

            $response['httpHeaders'] = $this->getHeadersAsArray(substr($responseContent, 0, $headerSize));
            $response['body']        = substr($responseContent, $headerSize);

            if (isset($response['headers']['request_header'])) {
                $this->last_request['headers'] = $response['headers']['request_header'];
            }
        }

        return $response;
    }

    /**
     * Check if the response was successful or a failure. If it failed, store the error.
     *
     * @param array       $response          The response from the curl request
     * @param array|false $formattedResponse The response body payload from the curl request
     * @param int         $timeout           The timeout supplied to the curl request.
     *
     * @return bool     If the request was successful
     */
    private function determineSuccess($response, $formattedResponse, $timeout)
    {
        $status = $this->findHTTPStatus($response, $formattedResponse);

        if ($status >= 200 && $status <= 299) {
            $this->request_successful = true;
            return true;
        }

        if (isset($formattedResponse['detail'])) {
            $this->last_error = sprintf('%d: %s', $formattedResponse['status'], $formattedResponse['detail']);
            return false;
        }

        if ($timeout > 0 && $response['headers'] && $response['headers']['total_time'] >= $timeout) {
            $this->last_error = sprintf('Request timed out after %f seconds.', $response['headers']['total_time']);
            return false;
        }

        $this->last_error = 'Unknown error, call getLastResponse() to find out what happened.';
        return false;
    }

    /**
     * Find the HTTP status code from the headers or API response body
     *
     * @param array       $response          The response from the curl request
     * @param array|false $formattedResponse The response body payload from the curl request
     *
     * @return int  HTTP status code
     */
    private function findHTTPStatus($response, $formattedResponse)
    {
        if (!empty($response['headers']) && isset($response['headers']['http_code'])) {
            return (int)$response['headers']['http_code'];
        }

        if (!empty($response['body']) && isset($formattedResponse['status'])) {
            return (int)$formattedResponse['status'];
        }

        return 418;
    }
}


1		<?php
2
3		namespace DrewM\MailChimp;
4
5		use GuzzleHttp\ClientInterface;
6		use GuzzleHttp\Psr7\Request;
7		use GuzzleHttp\Exception\RequestException;
8		use Psr\Http\Message\RequestInterface;
9		use Psr\Http\Message\ResponseInterface;
10
11		/**
12		* Super-simple, minimum abstraction MailChimp API v3 wrapper
13		* MailChimp API v3: http://developer.mailchimp.com
14		* This wrapper: https://github.com/drewm/mailchimp-api
15		*
16		* @author Drew McLellan <[email protected]>
17		* @version 2.5
18		*/
19		class MailChimp
20		{
21
22		/**
23		* @var ClientInterface
24		*/
25		private $client;
26
27		private $api_key;
28		private $api_endpoint = 'https://<dc>.api.mailchimp.com/3.0';
29
30		const TIMEOUT = 10;
31
32		private $request_successful = false;
33		private $last_error = '';
34		private $last_response = array();
35		private $last_request = array();
36
37		/**
38		* Create a new instance
39		*
40		* @param string $api_key Your MailChimp API key
41		* @param string $api_endpoint Optional custom API endpoint
42		*
43		* @throws \Exception
44		*/
45		public function __construct(ClientInterface $client, $api_key, $api_endpoint = null)
46		{
47		$this->client = $client;
48
49		$this->api_key = $api_key;
50
51		if ($api_endpoint === null) {
52		if (strpos($this->api_key, '-') === false) {
53		throw new \Exception("Invalid MailChimp API key supplied.");
54		}
55		list(, $data_center) = explode('-', $this->api_key);
56		$this->api_endpoint = str_replace('<dc>', $data_center, $this->api_endpoint);
57		} else {
58		$this->api_endpoint = $api_endpoint;
59		}
60
61		$this->last_response = array('headers' => null, 'body' => null);
62		}
63
64		/**
65		* Create a new instance of a Batch request. Optionally with the ID of an existing batch.
66		*
67		* @param string $batch_id Optional ID of an existing batch, if you need to check its status for example.
68		*
69		* @return Batch New Batch object.
70		*/
71		public function new_batch($batch_id = null)
72		{
73		return new Batch($this, $batch_id);
74		}
75
76		/**
77		* @return string The url to the API endpoint
78		*/
79		public function getApiEndpoint()
80		{
81		return $this->api_endpoint;
82		}
83
84
85		/**
86		* Convert an email address into a 'subscriber hash' for identifying the subscriber in a method URL
87		*
88		* @param string $email The subscriber's email address
89		*
90		* @return string Hashed version of the input
91		*/
92		public function subscriberHash($email)
93		{
94		return md5(strtolower($email));
95		}
96
97		/**
98		* Was the last request successful?
99		*
100		* @return bool True for success, false for failure
101		*/
102		public function success()
103		{
104		return $this->request_successful;
105		}
106
107		/**
108		* Get the last error returned by either the network transport, or by the API.
109		* If something didn't work, this should contain the string describing the problem.
110		*
111		* @return string\|false describing the error
112		*/
113		public function getLastError()
114		{
115		return $this->last_error ?: false;
116		}
117
118		/**
119		* Get an array containing the HTTP headers and the body of the API response.
120		*
121		* @return array Assoc array with keys 'headers' and 'body'
122		*/
123		public function getLastResponse()
124		{
125		return $this->last_response;
126		}
127
128		/**
129		* Get an array containing the HTTP headers and the body of the API request.
130		*
131		* @return array Assoc array
132		*/
133		public function getLastRequest()
134		{
135		return $this->last_request;
136		}
137
138		/**
139		* Make an HTTP DELETE request - for deleting data
140		*
141		* @param string $method URL of the API request method
142		* @param array $args Assoc array of arguments (if any)
143		* @param int $timeout Timeout limit for request in seconds
144		*
145		* @return array\|false Assoc array of API response, decoded from JSON
146		*/
147		public function delete($method, $args = array(), $timeout = self::TIMEOUT)
148		{
149		return $this->makeRequest('delete', $method, $args, $timeout);
150		}
151
152		/**
153		* Make an HTTP GET request - for retrieving data
154		*
155		* @param string $method URL of the API request method
156		* @param array $args Assoc array of arguments (usually your data)
157		* @param int $timeout Timeout limit for request in seconds
158		*
159		* @return array\|false Assoc array of API response, decoded from JSON
160		*/
161		public function get($method, $args = array(), $timeout = self::TIMEOUT)
162		{
163		return $this->makeRequest('get', $method, $args, $timeout);
164		}
165
166		/**
167		* Make an HTTP PATCH request - for performing partial updates
168		*
169		* @param string $method URL of the API request method
170		* @param array $args Assoc array of arguments (usually your data)
171		* @param int $timeout Timeout limit for request in seconds
172		*
173		* @return array\|false Assoc array of API response, decoded from JSON
174		*/
175		public function patch($method, $args = array(), $timeout = self::TIMEOUT)
176		{
177		return $this->makeRequest('patch', $method, $args, $timeout);
178		}
179
180		/**
181		* Make an HTTP POST request - for creating and updating items
182		*
183		* @param string $method URL of the API request method
184		* @param array $args Assoc array of arguments (usually your data)
185		* @param int $timeout Timeout limit for request in seconds
186		*
187		* @return array\|false Assoc array of API response, decoded from JSON
188		*/
189		public function post($method, $args = array(), $timeout = self::TIMEOUT)
190		{
191		return $this->makeRequest('post', $method, $args, $timeout);
192		}
193
194		/**
195		* Make an HTTP PUT request - for creating new items
196		*
197		* @param string $method URL of the API request method
198		* @param array $args Assoc array of arguments (usually your data)
199		* @param int $timeout Timeout limit for request in seconds
200		*
201		* @return array\|false Assoc array of API response, decoded from JSON
202		*/
203		public function put($method, $args = array(), $timeout = self::TIMEOUT)
204		{
205		return $this->makeRequest('put', $method, $args, $timeout);
206		}
207
208		/**
209		* Performs the underlying HTTP request. Not very exciting.
210		*
211		* @param string $http_verb The HTTP verb to use: get, post, put, patch, delete
212		* @param string $method The API method to be called
213		* @param array $args Assoc array of parameters to be passed
214		* @param int $timeout
215		*
216		* @return array\|false Assoc array of decoded result
217		*/
218		private function makeRequest($http_verb, $method, $args = array(), $timeout = self::TIMEOUT)
219		{
220		$resource = $method;
221		$method = strtoupper($http_verb);
222
223		$uri = $this->api_endpoint . '/' . $resource;
224
225		$dummyResponse = $this->prepareStateForRequest($method, $resource, $uri, $timeout);
226
227		$headers = [
228		'Accept' => ['application/vnd.api+json'],
229		'Content-Type' => ['application/vnd.api+json'],
230		'Authorization' => ['apikey ' . $this->api_key],
231		];
232
233		if (isset($args['language'])) {
234		$headers['Accept-Language'] = [$args['language']];
235		}
236
237		$body = null;
238
239		switch ($method) {
240		case 'POST':
241		case 'PATCH':
242		case 'PUT':
243		$body = json_encode($args);
244		$this->last_request['body'] = $body;
245		break;
246		case 'GET':
247		$uri .= '?' . http_build_query($args, '', '&');
248		break;
249		}
250
251		$request = new Request($method, $uri, $headers, $body);
252
253		$start = microtime(true);
254
255		$errorMessage = '';
256
257		try {
258		$response = $this->client->send($request);
259		} catch (RequestException $e) {
260		$errorMessage = $e->getMessage();
261		if (null === $response = $e->getResponse()) {
262		throw $e;
263		}
264		}
265
266		$end = microtime(true);
267
268		$requestHeader = $this->getRequestHeader($request);
269		$responseHeader = $this->getResponseHeader($response);
270		$responseBody = $responseHeader . (string) $response->getBody();
271
272		$dummyResponse['headers'] = [
273		'http_code' => $response->getStatusCode(),
274		'header_size' => strlen($responseHeader),
275		'total_time' => $end - $start,
276		'request_header' => $requestHeader
277		];
278
279		$dummyResponse = $this->setResponseState(
280		$dummyResponse,
281		'' === $errorMessage ? $responseBody : false,
		0 ignored issues – show Security Bug introduced 2018-12-17 16:23 UTC by Report Bug Copy Issue Report It seems like `'' === $errorMessage ? $responseBody : false` can also be of type `false`; however, `DrewM\MailChimp\MailChimp::setResponseState()` does only seem to accept `string`, did you maybe forget to handle an error condition? Loading history...
282		$errorMessage
283		);
284
285		$formattedResponse = $this->formatResponse($dummyResponse);
286
287		$isSuccess = $this->determineSuccess($dummyResponse, $formattedResponse, $timeout);
288
289		return is_array($formattedResponse) ? $formattedResponse : $isSuccess;
290		}
291
292		/**
293		* @param RequestInterface $request
294		* @return string
295		*/
296	View Code Duplication	private function getRequestHeader(RequestInterface $request): string
		0 ignored issues – show Duplication introduced 2018-12-17 16:23 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
297		{
298		$requestHeader = sprintf(
299		"%s %s HTTP/%s\r\n",
300		$request->getMethod(),
301		$request->getRequestTarget(),
302		$request->getProtocolVersion()
303		);
304
305		foreach ($request->getHeaders() as $headerName => $headerValues) {
306		$requestHeader .= sprintf("%s: %s\r\n", $headerName, implode(', ', $headerValues));
307		}
308
309		$requestHeader .= "\r\n";
310
311		return $requestHeader;
312		}
313
314		/**
315		* @param ResponseInterface $response
316		* @return string
317		*/
318	View Code Duplication	private function getResponseHeader(ResponseInterface $response): string
		0 ignored issues – show Duplication introduced 2018-12-17 16:23 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
319		{
320		$responseHeader = sprintf(
321		"HTTP/%s %s %s\r\n",
322		$response->getProtocolVersion(),
323		$response->getStatusCode(),
324		$response->getReasonPhrase()
325		);
326
327		foreach ($response->getHeaders() as $headerName => $headerValues) {
328		$responseHeader .= sprintf("%s: %s\r\n", $headerName, implode(', ', $headerValues));
329		}
330
331		$responseHeader .= "\r\n";
332
333		return $responseHeader;
334		}
335
336		/**
337		* @param string $http_verb
338		* @param string $method
339		* @param string $url
340		* @param integer $timeout
341		*
342		* @return array
343		*/
344		private function prepareStateForRequest($http_verb, $method, $url, $timeout)
345		{
346		$this->last_error = '';
347
348		$this->request_successful = false;
349
350		$this->last_response = array(
351		'headers' => null, // array of details from curl_getinfo()
352		'httpHeaders' => null, // array of HTTP headers
353		'body' => null // content of the response
354		);
355
356		$this->last_request = array(
357		'method' => $http_verb,
358		'path' => $method,
359		'url' => $url,
360		'body' => '',
361		'timeout' => $timeout,
362		);
363
364		return $this->last_response;
365		}
366
367		/**
368		* Get the HTTP headers as an array of header-name => header-value pairs.
369		*
370		* The "Link" header is parsed into an associative array based on the
371		* rel names it contains. The original value is available under
372		* the "_raw" key.
373		*
374		* @param string $headersAsString
375		*
376		* @return array
377		*/
378		private function getHeadersAsArray($headersAsString)
379		{
380		$headers = array();
381
382		foreach (explode("\r\n", $headersAsString) as $i => $line) {
383		if ($i === 0) { // HTTP code
384		continue;
385		}
386
387		$line = trim($line);
388		if (empty($line)) {
389		continue;
390		}
391
392		list($key, $value) = explode(': ', $line);
393
394		if ($key == 'Link') {
395		$value = array_merge(
396		array('_raw' => $value),
397		$this->getLinkHeaderAsArray($value)
398		);
399		}
400
401		$headers[$key] = $value;
402		}
403
404		return $headers;
405		}
406
407		/**
408		* Extract all rel => URL pairs from the provided Link header value
409		*
410		* Mailchimp only implements the URI reference and relation type from
411		* RFC 5988, so the value of the header is something like this:
412		*
413		* 'https://us13.api.mailchimp.com/schema/3.0/Lists/Instance.json; rel="describedBy",
414		* <https://us13.admin.mailchimp.com/lists/members/?id=XXXX>; rel="dashboard"'
415		*
416		* @param string $linkHeaderAsString
417		*
418		* @return array
419		*/
420		private function getLinkHeaderAsArray($linkHeaderAsString)
421		{
422		$urls = array();
423
424		if (preg_match_all('/<(.?)>\s;\srel="(.?)"\s*/', $linkHeaderAsString, $matches)) {
425		foreach ($matches[2] as $i => $relName) {
426		$urls[$relName] = $matches[1][$i];
427		}
428		}
429
430		return $urls;
431		}
432
433		/**
434		* Decode the response and format any error messages for debugging
435		*
436		* @param array $response The response from the curl request
437		*
438		* @return array\|false The JSON decoded into an array
439		*/
440		private function formatResponse($response)
441		{
442		$this->last_response = $response;
443
444		if (!empty($response['body'])) {
445		return json_decode($response['body'], true);
446		}
447
448		return false;
449		}
450
451		/**
452		* Do post-request formatting and setting state from the response
453		*
454		* @param array $response The response from the curl request
455		* @param string $responseContent The body of the response from the curl request
456		* @param string $errorMessage The error message
457		* @return array The modified response
458		*/
459		private function setResponseState($response, $responseContent, $errorMessage)
460		{
461		if ($responseContent === false) {
462		$this->last_error = $errorMessage;
463		} else {
464		$headerSize = $response['headers']['header_size'];
465
466		$response['httpHeaders'] = $this->getHeadersAsArray(substr($responseContent, 0, $headerSize));
467		$response['body'] = substr($responseContent, $headerSize);
468
469		if (isset($response['headers']['request_header'])) {
470		$this->last_request['headers'] = $response['headers']['request_header'];
471		}
472		}
473
474		return $response;
475		}
476
477		/**
478		* Check if the response was successful or a failure. If it failed, store the error.
479		*
480		* @param array $response The response from the curl request
481		* @param array\|false $formattedResponse The response body payload from the curl request
482		* @param int $timeout The timeout supplied to the curl request.
483		*
484		* @return bool If the request was successful
485		*/
486		private function determineSuccess($response, $formattedResponse, $timeout)
487		{
488		$status = $this->findHTTPStatus($response, $formattedResponse);
489
490		if ($status >= 200 && $status <= 299) {
491		$this->request_successful = true;
492		return true;
493		}
494
495		if (isset($formattedResponse['detail'])) {
496		$this->last_error = sprintf('%d: %s', $formattedResponse['status'], $formattedResponse['detail']);
497		return false;
498		}
499
500		if ($timeout > 0 && $response['headers'] && $response['headers']['total_time'] >= $timeout) {
501		$this->last_error = sprintf('Request timed out after %f seconds.', $response['headers']['total_time']);
502		return false;
503		}
504
505		$this->last_error = 'Unknown error, call getLastResponse() to find out what happened.';
506		return false;
507		}
508
509		/**
510		* Find the HTTP status code from the headers or API response body
511		*
512		* @param array $response The response from the curl request
513		* @param array\|false $formattedResponse The response body payload from the curl request
514		*
515		* @return int HTTP status code
516		*/
517		private function findHTTPStatus($response, $formattedResponse)
518		{
519		if (!empty($response['headers']) && isset($response['headers']['http_code'])) {
520		return (int)$response['headers']['http_code'];
521		}
522
523		if (!empty($response['body']) && isset($formattedResponse['status'])) {
524		return (int)$formattedResponse['status'];
525		}
526
527		return 418;
528		}
529		}
530

drewm / mailchimp-api

Pull Request — master (#243)

MailChimp::getLastResponse() A

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