PayPalRequest::verifyIPN() - Code Metrics - Inspection of "Refactoring setApiCredentials method" - srmklive/laravel-paypal - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 8b1c68...7c567b )

by Raza

created 2017-03-28 10:52 UTC

PayPalRequest::verifyIPN() A

↳ Parent: PayPalRequest

Complexity

Conditions	1
Paths	1

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
cc	1
eloc	4
c	2
b	0
f	0
nc	1
nop	1
dl	0
loc	8
rs	9.4285

<?php

namespace Srmklive\PayPal\Traits;

use GuzzleHttp\Client as HttpClient;
use GuzzleHttp\Exception\BadResponseException as HttpBadResponseException;
use GuzzleHttp\Exception\ClientException as HttpClientException;
use GuzzleHttp\Exception\ServerException as HttpServerException;
use Illuminate\Support\Collection;

trait PayPalRequest
{
    /**
     * Http Client class object.
     *
     * @var HttpClient
     */
    private $client;

    /**
     * PayPal API mode to be used.
     *
     * @var string
     */
    public $mode;

    /**
     * Request data to be sent to PayPal.
     *
     * @var \Illuminate\Support\Collection
     */
    protected $post;

    /**
     * PayPal API configuration.
     *
     * @var array
     */
    private $config;

    /**
     * Default currency for PayPal.
     *
     * @var string
     */
    private $currency;

    /**
     * Additional options for PayPal API request.
     *
     * @var array
     */
    private $options;

    /**
     * Default payment action for PayPal.
     *
     * @var string
     */
    private $paymentAction;

    /**
     * Default locale for PayPal.
     *
     * @var string
     */
    private $locale;

    /**
     * PayPal API Endpoint.
     *
     * @var string
     */
    private $apiUrl;

    /**
     * IPN notification url for PayPal.
     *
     * @var string
     */
    private $notifyUrl;

    /**
     * Http Client request body parameter name.
     *
     * @var string
     */
    private $httpBodyParam;

    /**
     * Function To Set PayPal API Configuration.
     *
     * @param array $config
     *
     * @return void
     */
    private function setConfig(array $config = [])
    {
        // Setting Http Client
        $this->client = $this->setClient();

        // Set Api Credentials
        if (function_exists('config')) {
            $this->setApiCredentials(
                config('paypal')
            );
        } elseif (!empty($config)) {
            $this->setApiCredentials($config);
        }

        // Set options to be empty.
        $this->options = [];

        $this->setRequestData();
    }

    /**
     * Function to initialize Http Client.
     *
     * @return HttpClient
     */
    protected function setClient()
    {
        return new HttpClient([
            'curl' => [
                CURLOPT_SSLVERSION => CURL_SSLVERSION_TLSv1_2,
            ],
        ]);
    }

    /**
     * Set PayPal API Credentials.
     *
     * @param array $credentials
     *
     * @throws \Exception
     *
     * @return void
     */
    public function setApiCredentials($credentials)
    {
        // Setting Default PayPal Mode If not set
        $this->setApiEnvironment($credentials);

        // Set API configuration for the PayPal provider
        $this->setApiProviderConfiguration($credentials);

        // Set default currency.
        $this->setCurrency($credentials['currency']);

        // Set default payment action.
        $this->paymentAction = $this->config['payment_action'];

        // Set default locale.
        $this->locale = $this->config['locale'];

        // Set PayPal API Endpoint.
        $this->apiUrl = $this->config['api_url'];

        // Set PayPal IPN Notification URL
        $this->notifyUrl = $credentials['notify_url'];
    }

    /**
     * Set API environment to be used by PayPal.
     *
     * @param array $credentials
     *
     * @return void
     */
    private function setApiEnvironment($credentials)
    {
        if (empty($credentials['mode']) || !in_array($credentials['mode'], ['sandbox', 'live'])) {
            $this->mode = 'live';
        } else {
            $this->mode = $credentials['mode'];
        }
    }

    /**
     * Set configuration details for the provider.
     *
     * @param array $credentials
     *
     * @throws \Exception
     *
     * @return void
     */
    private function setApiProviderConfiguration($credentials)
    {
        // Setting PayPal API Credentials
        collect($credentials[$this->mode])->map(function ($value, $key) {
            $this->config[$key] = $value;
        });

        // Setup PayPal API Signature value to use.
        $this->config['signature'] = empty($this->config['certificate']) ?
            $this->config['secret'] : file_get_contents($this->config['certificate']);

        if ($this instanceof \Srmklive\PayPal\Services\AdaptivePayments) {
            $this->setAdaptivePaymentsOptions();
        } elseif ($this instanceof \Srmklive\PayPal\Services\ExpressCheckout) {
            $this->setExpressCheckoutOptions($credentials);

        } else {
            throw new \Exception('Invalid api credentials provided for PayPal!. Please provide the right api credentials.');
        }

        if (empty($credentials['payment_action'])) {
            $credentials['payment_action'] = 'Sale';
        }

        if (empty($credentials['locale'])) {
            $credentials['locale'] = 'en_US';
        }

        // Adding params outside sandbox / live array
        $this->config['payment_action'] = $credentials['payment_action'];
        $this->config['notify_url'] = $credentials['notify_url'];
        $this->config['locale'] = $credentials['locale'];
    }

    /**
     * Setup request data to be sent to PayPal.
     *
     * @param array $data
     *
     * @return \Illuminate\Support\Collection
     */
    protected function setRequestData(array $data = [])
    {
        if (($this->post instanceof Collection) && ($this->post->isNotEmpty())) {
            unset($this->post);
        }

        $this->post = new Collection($data);

        return $this->post;
    }

    /**
     * Set other/override PayPal API parameters.
     *
     * @param array $options
     *
     * @return $this
     */
    public function addOptions(array $options)
    {
        $this->options = $options;

        return $this;
    }

    /**
     * Function to set currency.
     *
     * @param string $currency
     *
     * @throws \Exception
     *
     * @return $this
     */
    public function setCurrency($currency = 'USD')
    {
        $allowedCurrencies = ['AUD', 'BRL', 'CAD', 'CZK', 'DKK', 'EUR', 'HKD', 'HUF', 'ILS', 'JPY', 'MYR', 'MXN', 'NOK', 'NZD', 'PHP', 'PLN', 'GBP', 'SGD', 'SEK', 'CHF', 'TWD', 'THB', 'USD', 'RUB'];

        // Check if provided currency is valid.
        if (!in_array($currency, $allowedCurrencies)) {
            throw new \Exception('Currency is not supported by PayPal.');
        }

        $this->currency = $currency;

        return $this;
    }

    /**
     * Retrieve PayPal IPN Response.
     *
     * @param array $post
     *
     * @return array
     */
    public function verifyIPN($post)
    {
        $this->setRequestData($post);

        $this->apiUrl = $this->config['gateway_url'].'/cgi-bin/webscr';

        return $this->doPayPalRequest('verifyipn');
    }

    /**
     * Refund PayPal Transaction.
     *
     * @param string $transaction
     * @param float  $amount
     *
     * @return array
     */
    public function refundTransaction($transaction, $amount = 0.00)
    {
        $this->setRequestData([
            'TRANSACTIONID' => $transaction,
        ]);

        if ($amount > 0) {
            $this->post->merge([
                'REFUNDTYPE' => 'Partial',
                'AMT'        => $amount,
            ]);
        }

        return $this->doPayPalRequest('RefundTransaction');
    }

    /**
     * Search Transactions On PayPal.
     *
     * @param array $post
     *
     * @return array
     */
    public function searchTransactions($post)
    {
        $this->setRequestData($post);

        return $this->doPayPalRequest('TransactionSearch');
    }

    /**
     * Create request payload to be sent to PayPal.
     *
     * @param string $method
     */
    private function createRequestPayload($method)
    {
        $config = array_merge([
            'USER'      => $this->config['username'],
            'PWD'       => $this->config['password'],
            'SIGNATURE' => $this->config['signature'],
            'VERSION'   => 123,
            'METHOD'    => $method,
        ], $this->options);

        $this->post = $this->post->merge($config)
            ->filter(function ($value, $key) use ($method) {
                return (($method === 'verifyipn') && ($key === 'METHOD')) ?: $value;
            });
    }

    /**
     * Perform PayPal API request & return response.
     *
     * @throws \Exception
     *
     * @return \Psr\Http\Message\StreamInterface
     */
    private function makeHttpRequest()
    {
        try {
            return $this->client->post($this->apiUrl, [
                $this->httpBodyParam => $this->post->toArray(),
            ])->getBody();
        } catch (HttpClientException $e) {
            throw new \Exception($e->getRequest().' '.$e->getResponse());
        } catch (HttpServerException $e) {
            throw new \Exception($e->getRequest().' '.$e->getResponse());
        } catch (HttpBadResponseException $e) {
            throw new \Exception($e->getRequest().' '.$e->getResponse());
        }
    }

    /**
     * Function To Perform PayPal API Request.
     *
     * @param string $method
     *
     * @throws \Exception
     *
     * @return array|\Psr\Http\Message\StreamInterface
     */
    private function doPayPalRequest($method)
    {
        // Setup PayPal API Request Payload
        $this->createRequestPayload($method);

        try {
            // Perform PayPal HTTP API request.
            $response = $this->makeHttpRequest();

            return $this->retrieveData($method, $response);
        } catch (\Exception $e) {
            $message = collect($e->getTrace())->implode('\n');
        }

        return [
            'type'      => 'error',
            'message'   => $message,
        ];
    }

    /**
     * Parse PayPal NVP Response.
     *
     * @param string $method
     * @param mixed  $response
     *
     * @return array
     */
    private function retrieveData($method, $response)
    {
        if ($method === 'verifyipn') {
            return $response;
        }

        parse_str($response, $output);

        return $output;
    }
}


1			<?php
2
3			namespace Srmklive\PayPal\Traits;
4
5			use GuzzleHttp\Client as HttpClient;
6			use GuzzleHttp\Exception\BadResponseException as HttpBadResponseException;
7			use GuzzleHttp\Exception\ClientException as HttpClientException;
8			use GuzzleHttp\Exception\ServerException as HttpServerException;
9			use Illuminate\Support\Collection;
10
11			trait PayPalRequest
12			{
13			/**
14			* Http Client class object.
15			*
16			* @var HttpClient
17			*/
18			private $client;
19
20			/**
21			* PayPal API mode to be used.
22			*
23			* @var string
24			*/
25			public $mode;
26
27			/**
28			* Request data to be sent to PayPal.
29			*
30			* @var \Illuminate\Support\Collection
31			*/
32			protected $post;
33
34			/**
35			* PayPal API configuration.
36			*
37			* @var array
38			*/
39			private $config;
40
41			/**
42			* Default currency for PayPal.
43			*
44			* @var string
45			*/
46			private $currency;
47
48			/**
49			* Additional options for PayPal API request.
50			*
51			* @var array
52			*/
53			private $options;
54
55			/**
56			* Default payment action for PayPal.
57			*
58			* @var string
59			*/
60			private $paymentAction;
61
62			/**
63			* Default locale for PayPal.
64			*
65			* @var string
66			*/
67			private $locale;
68
69			/**
70			* PayPal API Endpoint.
71			*
72			* @var string
73			*/
74			private $apiUrl;
75
76			/**
77			* IPN notification url for PayPal.
78			*
79			* @var string
80			*/
81			private $notifyUrl;
82
83			/**
84			* Http Client request body parameter name.
85			*
86			* @var string
87			*/
88			private $httpBodyParam;
89
90			/**
91			* Function To Set PayPal API Configuration.
92			*
93			* @param array $config
94			*
95			* @return void
96			*/
97			private function setConfig(array $config = [])
98			{
99			// Setting Http Client
100			$this->client = $this->setClient();
101
102			// Set Api Credentials
103			if (function_exists('config')) {
104			$this->setApiCredentials(
105			config('paypal')
106			);
107			} elseif (!empty($config)) {
108			$this->setApiCredentials($config);
109			}
110
111			// Set options to be empty.
112			$this->options = [];
113
114			$this->setRequestData();
115			}
116
117			/**
118			* Function to initialize Http Client.
119			*
120			* @return HttpClient
121			*/
122			protected function setClient()
123			{
124			return new HttpClient([
125			'curl' => [
126			CURLOPT_SSLVERSION => CURL_SSLVERSION_TLSv1_2,
127			],
128			]);
129			}
130
131			/**
132			* Set PayPal API Credentials.
133			*
134			* @param array $credentials
135			*
136			* @throws \Exception
137			*
138			* @return void
139			*/
140			public function setApiCredentials($credentials)
141			{
142			// Setting Default PayPal Mode If not set
143			$this->setApiEnvironment($credentials);
144
145			// Set API configuration for the PayPal provider
146			$this->setApiProviderConfiguration($credentials);
147
148			// Set default currency.
149			$this->setCurrency($credentials['currency']);
150
151			// Set default payment action.
152			$this->paymentAction = $this->config['payment_action'];
153
154			// Set default locale.
155			$this->locale = $this->config['locale'];
156
157			// Set PayPal API Endpoint.
158			$this->apiUrl = $this->config['api_url'];
159
160			// Set PayPal IPN Notification URL
161			$this->notifyUrl = $credentials['notify_url'];
162			}
163
164			/**
165			* Set API environment to be used by PayPal.
166			*
167			* @param array $credentials
168			*
169			* @return void
170			*/
171			private function setApiEnvironment($credentials)
172			{
173			if (empty($credentials['mode']) \|\| !in_array($credentials['mode'], ['sandbox', 'live'])) {
174			$this->mode = 'live';
175			} else {
176			$this->mode = $credentials['mode'];
177			}
178			}
179
180			/**
181			* Set configuration details for the provider.
182			*
183			* @param array $credentials
184			*
185			* @throws \Exception
186			*
187			* @return void
188			*/
189			private function setApiProviderConfiguration($credentials)
190			{
191			// Setting PayPal API Credentials
192			collect($credentials[$this->mode])->map(function ($value, $key) {
193			$this->config[$key] = $value;
194			});
195
196			// Setup PayPal API Signature value to use.
197			$this->config['signature'] = empty($this->config['certificate']) ?
198			$this->config['secret'] : file_get_contents($this->config['certificate']);
199
200			if ($this instanceof \Srmklive\PayPal\Services\AdaptivePayments) {
201			$this->setAdaptivePaymentsOptions();
202			} elseif ($this instanceof \Srmklive\PayPal\Services\ExpressCheckout) {
203			$this->setExpressCheckoutOptions($credentials);
			0 ignored issues – show Unused Code introduced 2017-03-28 10:54 UTC by Report Bug Copy Issue Report The call to `ExpressCheckout::setExpressCheckoutOptions()` has too many arguments starting with `$credentials`. This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue. If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. In this case you can add the `@ignore` PhpDoc annotation to the duplicate definition and it will be ignored. Loading history...
204			} else {
205			throw new \Exception('Invalid api credentials provided for PayPal!. Please provide the right api credentials.');
206			}
207
208			if (empty($credentials['payment_action'])) {
209			$credentials['payment_action'] = 'Sale';
210			}
211
212			if (empty($credentials['locale'])) {
213			$credentials['locale'] = 'en_US';
214			}
215
216			// Adding params outside sandbox / live array
217			$this->config['payment_action'] = $credentials['payment_action'];
218			$this->config['notify_url'] = $credentials['notify_url'];
219			$this->config['locale'] = $credentials['locale'];
220			}
221
222			/**
223			* Setup request data to be sent to PayPal.
224			*
225			* @param array $data
226			*
227			* @return \Illuminate\Support\Collection
228			*/
229			protected function setRequestData(array $data = [])
230			{
231			if (($this->post instanceof Collection) && ($this->post->isNotEmpty())) {
232			unset($this->post);
233			}
234
235			$this->post = new Collection($data);
236
237			return $this->post;
238			}
239
240			/**
241			* Set other/override PayPal API parameters.
242			*
243			* @param array $options
244			*
245			* @return $this
246			*/
247			public function addOptions(array $options)
248			{
249			$this->options = $options;
250
251			return $this;
252			}
253
254			/**
255			* Function to set currency.
256			*
257			* @param string $currency
258			*
259			* @throws \Exception
260			*
261			* @return $this
262			*/
263			public function setCurrency($currency = 'USD')
264			{
265			$allowedCurrencies = ['AUD', 'BRL', 'CAD', 'CZK', 'DKK', 'EUR', 'HKD', 'HUF', 'ILS', 'JPY', 'MYR', 'MXN', 'NOK', 'NZD', 'PHP', 'PLN', 'GBP', 'SGD', 'SEK', 'CHF', 'TWD', 'THB', 'USD', 'RUB'];
266
267			// Check if provided currency is valid.
268			if (!in_array($currency, $allowedCurrencies)) {
269			throw new \Exception('Currency is not supported by PayPal.');
270			}
271
272			$this->currency = $currency;
273
274			return $this;
275			}
276
277			/**
278			* Retrieve PayPal IPN Response.
279			*
280			* @param array $post
281			*
282			* @return array
283			*/
284			public function verifyIPN($post)
285			{
286			$this->setRequestData($post);
287
288			$this->apiUrl = $this->config['gateway_url'].'/cgi-bin/webscr';
289
290			return $this->doPayPalRequest('verifyipn');
291			}
292
293			/**
294			* Refund PayPal Transaction.
295			*
296			* @param string $transaction
297			* @param float $amount
298			*
299			* @return array
300			*/
301			public function refundTransaction($transaction, $amount = 0.00)
302			{
303			$this->setRequestData([
304			'TRANSACTIONID' => $transaction,
305			]);
306
307			if ($amount > 0) {
308			$this->post->merge([
309			'REFUNDTYPE' => 'Partial',
310			'AMT' => $amount,
311			]);
312			}
313
314			return $this->doPayPalRequest('RefundTransaction');
315			}
316
317			/**
318			* Search Transactions On PayPal.
319			*
320			* @param array $post
321			*
322			* @return array
323			*/
324			public function searchTransactions($post)
325			{
326			$this->setRequestData($post);
327
328			return $this->doPayPalRequest('TransactionSearch');
329			}
330
331			/**
332			* Create request payload to be sent to PayPal.
333			*
334			* @param string $method
335			*/
336			private function createRequestPayload($method)
337			{
338			$config = array_merge([
339			'USER' => $this->config['username'],
340			'PWD' => $this->config['password'],
341			'SIGNATURE' => $this->config['signature'],
342			'VERSION' => 123,
343			'METHOD' => $method,
344			], $this->options);
345
346			$this->post = $this->post->merge($config)
347			->filter(function ($value, $key) use ($method) {
348			return (($method === 'verifyipn') && ($key === 'METHOD')) ?: $value;
349			});
350			}
351
352			/**
353			* Perform PayPal API request & return response.
354			*
355			* @throws \Exception
356			*
357			* @return \Psr\Http\Message\StreamInterface
358			*/
359			private function makeHttpRequest()
360			{
361			try {
362			return $this->client->post($this->apiUrl, [
363			$this->httpBodyParam => $this->post->toArray(),
364			])->getBody();
365			} catch (HttpClientException $e) {
366			throw new \Exception($e->getRequest().' '.$e->getResponse());
367			} catch (HttpServerException $e) {
368			throw new \Exception($e->getRequest().' '.$e->getResponse());
369			} catch (HttpBadResponseException $e) {
370			throw new \Exception($e->getRequest().' '.$e->getResponse());
371			}
372			}
373
374			/**
375			* Function To Perform PayPal API Request.
376			*
377			* @param string $method
378			*
379			* @throws \Exception
380			*
381			* @return array\|\Psr\Http\Message\StreamInterface
382			*/
383			private function doPayPalRequest($method)
384			{
385			// Setup PayPal API Request Payload
386			$this->createRequestPayload($method);
387
388			try {
389			// Perform PayPal HTTP API request.
390			$response = $this->makeHttpRequest();
391
392			return $this->retrieveData($method, $response);
393			} catch (\Exception $e) {
394			$message = collect($e->getTrace())->implode('\n');
395			}
396
397			return [
398			'type' => 'error',
399			'message' => $message,
400			];
401			}
402
403			/**
404			* Parse PayPal NVP Response.
405			*
406			* @param string $method
407			* @param mixed $response
408			*
409			* @return array
410			*/
411			private function retrieveData($method, $response)
412			{
413			if ($method === 'verifyipn') {
414			return $response;
415			}
416
417			parse_str($response, $output);
418
419			return $output;
420			}
421			}
422

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