ClientFactory::createConfig() - Code Metrics - Inspection of "Merge branch 'release/v2.8.0'" - commercetools/commercetools-php-sdk - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( da0795...78880b )

by Jens

created 2019-06-06 09:06 UTC

ClientFactory::createConfig() A

↳ Parent: ClientFactory

Complexity

Conditions	3
Paths	3

Size

Total Lines	9
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	4.125

Importance

Changes

Metric	Value
eloc	5
dl	0
loc	9
ccs	3
cts	6
cp	0.5
rs	10
c	0
b	0
f	0
cc	3
nc	3
nop	1
crap	4.125

<?php

namespace Commercetools\Core\Client;

use Cache\Adapter\Filesystem\FilesystemCachePool;
use Commercetools\Core\Cache\CacheAdapterFactory;
use Commercetools\Core\Client\OAuth\ClientCredentials;
use Commercetools\Core\Client\OAuth\CredentialTokenProvider;
use Commercetools\Core\Client\OAuth\OAuth2Handler;
use Commercetools\Core\Client\OAuth\TokenProvider;
use Commercetools\Core\Config;
use Commercetools\Core\Error\ApiException;
use Commercetools\Core\Error\DeprecatedException;
use Commercetools\Core\Error\InvalidCredentialsError;
use Commercetools\Core\Error\InvalidTokenException;
use Commercetools\Core\Error\Message;
use Commercetools\Core\Helper\CorrelationIdProvider;
use Commercetools\Core\Error\InvalidArgumentException;
use Commercetools\Core\Response\AbstractApiResponse;
use GuzzleHttp\Client as HttpClient;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\MessageFormatter;
use GuzzleHttp\Middleware;
use League\Flysystem\Adapter\Local;
use League\Flysystem\Filesystem;
use Psr\Cache\CacheItemPoolInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Log\LoggerInterface;
use Psr\Log\LogLevel;
use Psr\SimpleCache\CacheInterface;

class ClientFactory
{
    /**
     * @var bool
     */
    private static $isGuzzle6;

    /**
     * ClientFactory constructor.
     * @throws DeprecatedException
     */
    public function __construct()
    {
        if (!self::isGuzzle6()) {
            throw new DeprecatedException("ClientFactory doesn't support Guzzle version < 6");
        }
    }

    /**
     * @param Config|array $config
     * @param LoggerInterface $logger
     * @param CacheItemPoolInterface|CacheInterface $cache
     * @param TokenProvider $provider
     * @param CacheAdapterFactory $cacheAdapterFactory
     * @return HttpClient
     */
    public function createClient(
        $config,
        LoggerInterface $logger = null,
        $cache = null,
        TokenProvider $provider = null,
        CacheAdapterFactory $cacheAdapterFactory = null
    ) {
        $config = $this->createConfig($config);

        if (is_null($cacheAdapterFactory)) {
            $cacheDir = $config->getCacheDir();
            $cacheDir = !is_null($cacheDir) ? $cacheDir : realpath(__DIR__ . '/../../..');

            $cacheAdapterFactory = new CacheAdapterFactory($cacheDir);
        }

        $credentials = $config->getClientCredentials();
        $oauthHandler = $this->getHandler(
            $credentials,
            $config->getOauthUrl(),
            $cacheAdapterFactory,
            $cache,
            $provider,
            $config->getOAuthClientOptions()
        );

        $options = $this->getDefaultOptions($config);

        return $this->createGuzzle6Client($options, $oauthHandler, $logger, $config->getCorrelationIdProvider());
    }

    private function getDefaultOptions(Config $config)
    {
        $options = $config->getClientOptions();
        $options['http_errors'] = $config->getThrowExceptions();
        $options['base_uri'] = $config->getApiUrl() . "/" . $config->getProject() . "/";
        $defaultHeaders = [
            'User-Agent' => (new UserAgentProvider())->getUserAgent()
        ];
        if (!is_null($config->getAcceptEncoding())) {

            $defaultHeaders['Accept-Encoding'] = $config->getAcceptEncoding();
        }
        $options['headers'] = array_merge($defaultHeaders, (isset($options['headers']) ? $options['headers'] : []));

        return $options;
    }

    /**
     * @param Config|array $config
     * @return Config
     * @throws InvalidArgumentException
     */
    private function createConfig($config)
    {
        if ($config instanceof Config) {
            return $config;
        }
        if (is_array($config)) {

            return Config::fromArray($config);
        }
        throw new InvalidArgumentException();
    }

    /**
     * @param array $options
     * @param LoggerInterface|null $logger
     * @param OAuth2Handler $oauthHandler
     * @return HttpClient
     */
    private function createGuzzle6Client(
        array $options,
        OAuth2Handler $oauthHandler,
        LoggerInterface $logger = null,
        CorrelationIdProvider $correlationIdProvider = null
    ) {
        if (isset($options['handler']) && $options['handler'] instanceof HandlerStack) {
            $handler = $options['handler'];
        } else {
            $handler = HandlerStack::create();
            $options['handler'] = $handler;
        }

        $options = array_merge(
            [
                'allow_redirects' => false,
                'verify' => true,
                'timeout' => 60,
                'connect_timeout' => 10,
                'pool_size' => 25,
            ],
            $options
        );

        if (!is_null($logger)) {
            $this->setLogger($handler, $logger);
        }

        $handler->remove("http_errors");
        $handler->unshift(self::httpErrors(), 'ctp_http_errors');

        $handler->push(
            Middleware::mapRequest($oauthHandler),
            'oauth_2_0'
        );
        $handler->push(
            self::reauthenticate($oauthHandler),
            'reauthenticate'
        );

        if (!is_null($correlationIdProvider)) {
            $handler->push(Middleware::mapRequest(function (RequestInterface $request) use ($correlationIdProvider) {
                return $request->withAddedHeader(
                    AbstractApiResponse::X_CORRELATION_ID,
                    $correlationIdProvider->getCorrelationId()
                );
            }), 'ctp_correlation_id');
        }

        $client = new HttpClient($options);

        return $client;
    }

    private function setLogger(
        HandlerStack $handler,
        LoggerInterface $logger,
        $logLevel = LogLevel::INFO,
        $formatter = null
    ) {
        if (is_null($formatter)) {
            $formatter = new MessageFormatter();
        }
        $handler->push(self::log($logger, $formatter, $logLevel), 'ctp_logger');
    }

    /**
     * Middleware that reauthenticates on invalid token error
     *
     * @param OAuth2Handler $oauthHandler
     * @param int $maxRetries
     * @return callable Returns a function that accepts the next handler.
     */
    public static function reauthenticate(OAuth2Handler $oauthHandler, $maxRetries = 1)
    {
        return function (callable $handler) use ($oauthHandler, $maxRetries) {
            return function (RequestInterface $request, array $options) use ($handler, $oauthHandler, $maxRetries) {
                return $handler($request, $options)->then(
                    function (ResponseInterface $response) use (
                        $request,
                        $handler,
                        $oauthHandler,
                        $options,
                        $maxRetries
                    ) {
                        if ($response->getStatusCode() == 401) {
                            if (!isset($options['reauth'])) {
                                $options['reauth'] = 0;
                            }
                            $exception = ApiException::create($request, $response);
                            if ($options['reauth'] < $maxRetries && $exception instanceof InvalidTokenException) {
                                $options['reauth']++;
                                $token = $oauthHandler->refreshToken();
                                $request = $request->withHeader(
                                    'Authorization',
                                    'Bearer ' . $token->getToken()
                                );
                                return $handler($request, $options);
                            }
                        }
                        return $response;
                    }
                );
            };
        };
    }

    /**
     * Middleware that throws exceptions for 4xx or 5xx responses when the
     * "http_error" request option is set to true.
     *
     * @return callable Returns a function that accepts the next handler.
     */
    public static function httpErrors()
    {
        return function (callable $handler) {
            return function ($request, array $options) use ($handler) {
                if (empty($options['http_errors'])) {
                    return $handler($request, $options);
                }
                return $handler($request, $options)->then(
                    function (ResponseInterface $response) use ($request, $handler) {

                        $code = $response->getStatusCode();
                        if ($code < 400) {
                            return $response;
                        }
                        throw ApiException::create($request, $response);
                    }
                );
            };
        };
    }

    /**
     * @param ClientCredentials $credentials
     * @param string $accessTokenUrl
     * @param CacheAdapterFactory $cacheAdapterFactory
     * @param CacheItemPoolInterface|CacheInterface $cache
     * @param TokenProvider $provider
     * @param array $authClientOptions
     * @return OAuth2Handler
     */
    private function getHandler(
        ClientCredentials $credentials,
        $accessTokenUrl,
        CacheAdapterFactory $cacheAdapterFactory,
        $cache,
        TokenProvider $provider = null,
        array $authClientOptions = []
    ) {
        if (is_null($provider)) {
            $provider = new CredentialTokenProvider(
                new HttpClient($authClientOptions),
                $accessTokenUrl,
                $credentials
            );
        }
        $cacheKey = sha1($credentials->getClientId() . $credentials->getScope());
        return new OAuth2Handler($provider, $cache, $cacheAdapterFactory, $cacheKey);
    }

    /**
     * Middleware that logs requests, responses, and errors using a message
     * formatter.
     *
     * @param LoggerInterface  $logger Logs messages.
     * @param MessageFormatter $formatter Formatter used to create message strings.
     * @param string           $logLevel Level at which to log requests.
     *
     * @return callable Returns a function that accepts the next handler.
     */
    private static function log(LoggerInterface $logger, MessageFormatter $formatter, $logLevel = LogLevel::INFO)
    {
        return function (callable $handler) use ($logger, $formatter, $logLevel) {
            return function ($request, array $options) use ($handler, $logger, $formatter, $logLevel) {
                return $handler($request, $options)->then(
                    function (ResponseInterface $response) use ($logger, $request, $formatter, $logLevel) {
                        $message = $formatter->format($request, $response);
                        $context = [
                            AbstractApiResponse::X_CORRELATION_ID => $response->getHeader(
                                AbstractApiResponse::X_CORRELATION_ID
                            )
                        ];
                        $logger->log($logLevel, $message, $context);
                        return $response;
                    },
                    function ($reason) use ($logger, $request, $formatter) {
                        $response = null;
                        $context = [];
                        if ($reason instanceof RequestException) {
                            $response = $reason->getResponse();
                            if (!is_null($response)) {
                                $context[AbstractApiResponse::X_CORRELATION_ID] = $response->getHeader(
                                    AbstractApiResponse::X_CORRELATION_ID
                                );
                            }
                        }
                        $message = $formatter->format($request, $response, $reason);
                        $logger->notice($message, $context);
                        return \GuzzleHttp\Promise\rejection_for($reason);
                    }
                );
            };
        };
    }

    /**
     * @return bool
     */
    private static function isGuzzle6()
    {
        if (is_null(self::$isGuzzle6)) {

            if (version_compare(HttpClient::VERSION, '6.0.0', '>=')) {
                self::$isGuzzle6 = true;
            } else {
                self::$isGuzzle6 = false;
            }
        }
        return self::$isGuzzle6;
    }

    /**
     * @return ClientFactory
     */
    public static function of()
    {
        return new static();
    }
}


1		<?php
2
3		namespace Commercetools\Core\Client;
4
5		use Cache\Adapter\Filesystem\FilesystemCachePool;
6		use Commercetools\Core\Cache\CacheAdapterFactory;
7		use Commercetools\Core\Client\OAuth\ClientCredentials;
8		use Commercetools\Core\Client\OAuth\CredentialTokenProvider;
9		use Commercetools\Core\Client\OAuth\OAuth2Handler;
10		use Commercetools\Core\Client\OAuth\TokenProvider;
11		use Commercetools\Core\Config;
12		use Commercetools\Core\Error\ApiException;
13		use Commercetools\Core\Error\DeprecatedException;
14		use Commercetools\Core\Error\InvalidCredentialsError;
15		use Commercetools\Core\Error\InvalidTokenException;
16		use Commercetools\Core\Error\Message;
17		use Commercetools\Core\Helper\CorrelationIdProvider;
18		use Commercetools\Core\Error\InvalidArgumentException;
19		use Commercetools\Core\Response\AbstractApiResponse;
20		use GuzzleHttp\Client as HttpClient;
21		use GuzzleHttp\Exception\RequestException;
22		use GuzzleHttp\HandlerStack;
23		use GuzzleHttp\MessageFormatter;
24		use GuzzleHttp\Middleware;
25		use League\Flysystem\Adapter\Local;
26		use League\Flysystem\Filesystem;
27		use Psr\Cache\CacheItemPoolInterface;
28		use Psr\Http\Message\RequestInterface;
29		use Psr\Http\Message\ResponseInterface;
30		use Psr\Log\LoggerInterface;
31		use Psr\Log\LogLevel;
32		use Psr\SimpleCache\CacheInterface;
33
34		class ClientFactory
35		{
36		/**
37		* @var bool
38		*/
39		private static $isGuzzle6;
40
41		/**
42		* ClientFactory constructor.
43		* @throws DeprecatedException
44		*/
45	6	public function __construct()
46		{
47	6	if (!self::isGuzzle6()) {
48		throw new DeprecatedException("ClientFactory doesn't support Guzzle version < 6");
49		}
50	6	}
51
52		/**
53		* @param Config\|array $config
54		* @param LoggerInterface $logger
55		* @param CacheItemPoolInterface\|CacheInterface $cache
56		* @param TokenProvider $provider
57		* @param CacheAdapterFactory $cacheAdapterFactory
58		* @return HttpClient
59		*/
60	5	public function createClient(
61		$config,
62		LoggerInterface $logger = null,
63		$cache = null,
64		TokenProvider $provider = null,
65		CacheAdapterFactory $cacheAdapterFactory = null
66		) {
67	5	$config = $this->createConfig($config);
68
69	5	if (is_null($cacheAdapterFactory)) {
70	5	$cacheDir = $config->getCacheDir();
71	5	$cacheDir = !is_null($cacheDir) ? $cacheDir : realpath(__DIR__ . '/../../..');
		0 ignored issues – show introduced 2019-05-24 08:22 UTC by Report Bug Copy Issue Report The condition `is_null($cacheDir)` is always `false`. Loading history...
72	5	$cacheAdapterFactory = new CacheAdapterFactory($cacheDir);
73		}
74
75	5	$credentials = $config->getClientCredentials();
76	5	$oauthHandler = $this->getHandler(
77	5	$credentials,
78	5	$config->getOauthUrl(),
79	5	$cacheAdapterFactory,
80	5	$cache,
81	5	$provider,
82	5	$config->getOAuthClientOptions()
83		);
84
85	5	$options = $this->getDefaultOptions($config);
86
87	5	return $this->createGuzzle6Client($options, $oauthHandler, $logger, $config->getCorrelationIdProvider());
88		}
89
90	5	private function getDefaultOptions(Config $config)
91		{
92	5	$options = $config->getClientOptions();
93	5	$options['http_errors'] = $config->getThrowExceptions();
94	5	$options['base_uri'] = $config->getApiUrl() . "/" . $config->getProject() . "/";
95		$defaultHeaders = [
96	5	'User-Agent' => (new UserAgentProvider())->getUserAgent()
97		];
98	5	if (!is_null($config->getAcceptEncoding())) {
		0 ignored issues – show introduced 2019-05-24 08:22 UTC by Report Bug Copy Issue Report The condition `is_null($config->getAcceptEncoding())` is always `false`. Loading history...
99	5	$defaultHeaders['Accept-Encoding'] = $config->getAcceptEncoding();
100		}
101	5	$options['headers'] = array_merge($defaultHeaders, (isset($options['headers']) ? $options['headers'] : []));
102
103	5	return $options;
104		}
105
106		/**
107		* @param Config\|array $config
108		* @return Config
109		* @throws InvalidArgumentException
110		*/
111	5	private function createConfig($config)
112		{
113	5	if ($config instanceof Config) {
114	5	return $config;
115		}
116		if (is_array($config)) {
		0 ignored issues – show introduced 2019-05-24 08:22 UTC by Report Bug Copy Issue Report The condition `is_array($config)` is always `true`. Loading history...
117		return Config::fromArray($config);
118		}
119		throw new InvalidArgumentException();
120		}
121
122		/**
123		* @param array $options
124		* @param LoggerInterface\|null $logger
125		* @param OAuth2Handler $oauthHandler
126		* @return HttpClient
127		*/
128	5	private function createGuzzle6Client(
129		array $options,
130		OAuth2Handler $oauthHandler,
131		LoggerInterface $logger = null,
132		CorrelationIdProvider $correlationIdProvider = null
133		) {
134	5	if (isset($options['handler']) && $options['handler'] instanceof HandlerStack) {
135		$handler = $options['handler'];
136		} else {
137	5	$handler = HandlerStack::create();
138	5	$options['handler'] = $handler;
139		}
140
141	5	$options = array_merge(
142		[
143	5	'allow_redirects' => false,
144		'verify' => true,
145		'timeout' => 60,
146		'connect_timeout' => 10,
147		'pool_size' => 25,
148		],
149	5	$options
150		);
151
152	5	if (!is_null($logger)) {
153	5	$this->setLogger($handler, $logger);
154		}
155
156	5	$handler->remove("http_errors");
157	5	$handler->unshift(self::httpErrors(), 'ctp_http_errors');
158
159	5	$handler->push(
160	5	Middleware::mapRequest($oauthHandler),
161	5	'oauth_2_0'
162		);
163	5	$handler->push(
164	5	self::reauthenticate($oauthHandler),
165	5	'reauthenticate'
166		);
167
168	5	if (!is_null($correlationIdProvider)) {
169		$handler->push(Middleware::mapRequest(function (RequestInterface $request) use ($correlationIdProvider) {
170	5	return $request->withAddedHeader(
171	5	AbstractApiResponse::X_CORRELATION_ID,
172	5	$correlationIdProvider->getCorrelationId()
173		);
174	5	}), 'ctp_correlation_id');
175		}
176
177	5	$client = new HttpClient($options);
178
179	5	return $client;
180		}
181
182	5	private function setLogger(
183		HandlerStack $handler,
184		LoggerInterface $logger,
185		$logLevel = LogLevel::INFO,
186		$formatter = null
187		) {
188	5	if (is_null($formatter)) {
189	5	$formatter = new MessageFormatter();
190		}
191	5	$handler->push(self::log($logger, $formatter, $logLevel), 'ctp_logger');
192	5	}
193
194		/**
195		* Middleware that reauthenticates on invalid token error
196		*
197		* @param OAuth2Handler $oauthHandler
198		* @param int $maxRetries
199		* @return callable Returns a function that accepts the next handler.
200		*/
201	5	public static function reauthenticate(OAuth2Handler $oauthHandler, $maxRetries = 1)
202		{
203		return function (callable $handler) use ($oauthHandler, $maxRetries) {
204		return function (RequestInterface $request, array $options) use ($handler, $oauthHandler, $maxRetries) {
205	5	return $handler($request, $options)->then(
206		function (ResponseInterface $response) use (
207	5	$request,
208	5	$handler,
209	5	$oauthHandler,
210	5	$options,
211	5	$maxRetries
212		) {
213	5	if ($response->getStatusCode() == 401) {
214	1	if (!isset($options['reauth'])) {
215	1	$options['reauth'] = 0;
216		}
217	1	$exception = ApiException::create($request, $response);
218	1	if ($options['reauth'] < $maxRetries && $exception instanceof InvalidTokenException) {
219	1	$options['reauth']++;
220	1	$token = $oauthHandler->refreshToken();
221	1	$request = $request->withHeader(
222	1	'Authorization',
223	1	'Bearer ' . $token->getToken()
224		);
225	1	return $handler($request, $options);
226		}
227		}
228	4	return $response;
229	5	}
230		);
231	5	};
232	5	};
233		}
234
235		/**
236		* Middleware that throws exceptions for 4xx or 5xx responses when the
237		* "http_error" request option is set to true.
238		*
239		* @return callable Returns a function that accepts the next handler.
240		*/
241	5	public static function httpErrors()
242		{
243		return function (callable $handler) {
244		return function ($request, array $options) use ($handler) {
245	5	if (empty($options['http_errors'])) {
246	3	return $handler($request, $options);
247		}
248	2	return $handler($request, $options)->then(
249		function (ResponseInterface $response) use ($request, $handler) {
		0 ignored issues – show Unused Code introduced 2019-05-24 08:22 UTC by Report Bug Copy Issue Report The import `$handler` is not used and could be removed. This check looks for imports that have been defined, but are not used in the scope. Loading history...
250	2	$code = $response->getStatusCode();
251	2	if ($code < 400) {
252		return $response;
253		}
254	2	throw ApiException::create($request, $response);
255	2	}
256		);
257	5	};
258	5	};
259		}
260
261		/**
262		* @param ClientCredentials $credentials
263		* @param string $accessTokenUrl
264		* @param CacheAdapterFactory $cacheAdapterFactory
265		* @param CacheItemPoolInterface\|CacheInterface $cache
266		* @param TokenProvider $provider
267		* @param array $authClientOptions
268		* @return OAuth2Handler
269		*/
270	5	private function getHandler(
271		ClientCredentials $credentials,
272		$accessTokenUrl,
273		CacheAdapterFactory $cacheAdapterFactory,
274		$cache,
275		TokenProvider $provider = null,
276		array $authClientOptions = []
277		) {
278	5	if (is_null($provider)) {
279	5	$provider = new CredentialTokenProvider(
280	5	new HttpClient($authClientOptions),
281	5	$accessTokenUrl,
282	5	$credentials
283		);
284		}
285	5	$cacheKey = sha1($credentials->getClientId() . $credentials->getScope());
286	5	return new OAuth2Handler($provider, $cache, $cacheAdapterFactory, $cacheKey);
287		}
288
289		/**
290		* Middleware that logs requests, responses, and errors using a message
291		* formatter.
292		*
293		* @param LoggerInterface $logger Logs messages.
294		* @param MessageFormatter $formatter Formatter used to create message strings.
295		* @param string $logLevel Level at which to log requests.
296		*
297		* @return callable Returns a function that accepts the next handler.
298		*/
299	5	private static function log(LoggerInterface $logger, MessageFormatter $formatter, $logLevel = LogLevel::INFO)
300		{
301		return function (callable $handler) use ($logger, $formatter, $logLevel) {
302		return function ($request, array $options) use ($handler, $logger, $formatter, $logLevel) {
303	5	return $handler($request, $options)->then(
304		function (ResponseInterface $response) use ($logger, $request, $formatter, $logLevel) {
305	5	$message = $formatter->format($request, $response);
306		$context = [
307	5	AbstractApiResponse::X_CORRELATION_ID => $response->getHeader(
308	5	AbstractApiResponse::X_CORRELATION_ID
309		)
310		];
311	5	$logger->log($logLevel, $message, $context);
312	5	return $response;
313	5	},
314		function ($reason) use ($logger, $request, $formatter) {
315		$response = null;
316		$context = [];
317		if ($reason instanceof RequestException) {
318		$response = $reason->getResponse();
319		if (!is_null($response)) {
320		$context[AbstractApiResponse::X_CORRELATION_ID] = $response->getHeader(
321		AbstractApiResponse::X_CORRELATION_ID
322		);
323		}
324		}
325		$message = $formatter->format($request, $response, $reason);
326		$logger->notice($message, $context);
327		return \GuzzleHttp\Promise\rejection_for($reason);
328	5	}
329		);
330	5	};
331	5	};
332		}
333
334		/**
335		* @return bool
336		*/
337	6	private static function isGuzzle6()
338		{
339	6	if (is_null(self::$isGuzzle6)) {
		0 ignored issues – show introduced 2019-05-24 08:22 UTC by Report Bug Copy Issue Report The condition `is_null(self::isGuzzle6)` is always `false`. Loading history...
340	1	if (version_compare(HttpClient::VERSION, '6.0.0', '>=')) {
341	1	self::$isGuzzle6 = true;
342		} else {
343		self::$isGuzzle6 = false;
344		}
345		}
346	6	return self::$isGuzzle6;
347		}
348
349		/**
350		* @return ClientFactory
351		*/
352	6	public static function of()
353		{
354	6	return new static();
355		}
356		}
357

commercetools / commercetools-php-sdk

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ClientFactory::createConfig() A

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