NbsBrowser::getGuzzleClient() - Code Metrics - Inspection of "Completed!" - RunOpenCode/exchange-rate-nbs - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 03bd4d...8fea20 )

by Nikola

created 2016-01-17 00:49 UTC

NbsBrowser::getGuzzleClient() A

↳ Parent: NbsBrowser

Complexity

Conditions	2
Paths	2

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
c	1
b	0
f	1
dl	0
loc	8
ccs	5
cts	5
cp	1
rs	9.4285
cc	2
eloc	4
nc	2
nop	0
crap	2

<?php
/*
 * This file is part of the Exchange Rate package, an RunOpenCode project.
 *
 * Implementation of exchange rate crawler for National Bank of Serbia, http://www.nbs.rs.
 *
 * (c) 2016 RunOpenCode
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace RunOpenCode\ExchangeRate\NationalBankOfSerbia\Util;

use GuzzleHttp\Client;
use GuzzleHttp\Cookie\CookieJar;
use Psr\Http\Message\StreamInterface;
use Symfony\Component\DomCrawler\Crawler;

/**
 * Class NbsBrowser
 *
 * Browser browses trough web site of National Bank of Serbia and fetches documents with rates.
 *
 * @package RunOpenCode\ExchangeRate\NationalBankOfSerbia\Util
 */
class NbsBrowser
{
    const SOURCE = 'http://www.nbs.rs/kursnaListaModul/naZeljeniDan.faces';
    /**
     * @var Client
     */
    private $guzzleClient;

    /**
     * @var CookieJar
     */
    private $guzzleCookieJar;

    /**
     * Get XML document with rates.
     *
     * @param \DateTime $date
     * @param string $rateType
     * @return StreamInterface
     */
    public function getXmlDocument(\DateTime $date, $rateType)
    {
        return $this->request('POST', array(), array(
            'index:brKursneListe:' => '',
            'index:year' => $date->format('Y'),
            'index:inputCalendar1' => $date->format('d/m/Y'),
            'index:vrsta' => call_user_func(function($rateType) {
                switch ($rateType) {
                    case 'foreign_exchange_buying':     // FALL TROUGH
                    case 'foreign_exchange_selling':
                        return 1;
                        break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
                    case 'foreign_cash_buying':        // FALL TROUGH
                    case 'foreign_cash_selling':
                        return 2;
                        break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
                    default:
                        return 3;
                        break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
                }
            }, $rateType),
            'index:prikaz' => 3, // XML
            'index:buttonShow' => 'Show',
            'index' => 'index',
            'com.sun.faces.VIEW' => $this->getFormCsrfToken()
        ));
    }

    /**
     * Execute HTTP request and get raw body response.
     *
     * @param string $method HTTP Method.
     * @param array $params Params to send with request.
     * @return StreamInterface
     */
    private function request($method, array $query = array(), array $params = array())
    {
        $client = $this->getGuzzleClient();

        $response = $client->request($method, self::SOURCE, array(
            'cookies' => $this->getGuzzleCookieJar(),
            'form_params' => $params,
            'query' => $query
        ));

        return $response->getBody();
    }

    /**
     * Get NBS's form CSRF token.
     *
     * @return string CSRF token.
     *
     * @throws \RuntimeException When API is changed.
     */
    private function getFormCsrfToken()
    {
        $crawler = new Crawler($this->request('GET')->getContents());

        $hiddens = $crawler->filter('input[type="hidden"]');

        /**
         * @var \DOMElement $hidden
         */
        foreach ($hiddens as $hidden) {

            if ($hidden->getAttribute('id') === 'com.sun.faces.VIEW') {
                return $hidden->getAttribute('value');
            }
        }

        throw new \RuntimeException('FATAL ERROR: National Bank of Serbia changed it\'s API, unable to extract token.');
    }

    /**
     * Get Guzzle Client.
     *
     * @return Client
     */
    private function getGuzzleClient()
    {
        if ($this->guzzleClient === null) {
            $this->guzzleClient = new Client(array('cookies' => true));
        }

        return $this->guzzleClient;
    }

    /**
     * Get Guzzle CookieJar.
     *
     * @return CookieJar
     */
    private function getGuzzleCookieJar()
    {
        if ($this->guzzleCookieJar === null) {
            $this->guzzleCookieJar = new CookieJar();
        }

        return $this->guzzleCookieJar;
    }
}


1		<?php
2		/*
3		* This file is part of the Exchange Rate package, an RunOpenCode project.
4		*
5		* Implementation of exchange rate crawler for National Bank of Serbia, http://www.nbs.rs.
6		*
7		* (c) 2016 RunOpenCode
8		*
9		* For the full copyright and license information, please view the LICENSE
10		* file that was distributed with this source code.
11		*/
12		namespace RunOpenCode\ExchangeRate\NationalBankOfSerbia\Util;
13
14		use GuzzleHttp\Client;
15		use GuzzleHttp\Cookie\CookieJar;
16		use Psr\Http\Message\StreamInterface;
17		use Symfony\Component\DomCrawler\Crawler;
18
19		/**
20		* Class NbsBrowser
21		*
22		* Browser browses trough web site of National Bank of Serbia and fetches documents with rates.
23		*
24		* @package RunOpenCode\ExchangeRate\NationalBankOfSerbia\Util
25		*/
26		class NbsBrowser
27		{
28		const SOURCE = 'http://www.nbs.rs/kursnaListaModul/naZeljeniDan.faces';
29		/**
30		* @var Client
31		*/
32		private $guzzleClient;
33
34		/**
35		* @var CookieJar
36		*/
37		private $guzzleCookieJar;
38
39		/**
40		* Get XML document with rates.
41		*
42		* @param \DateTime $date
43		* @param string $rateType
44		* @return StreamInterface
45		*/
46	6	public function getXmlDocument(\DateTime $date, $rateType)
47		{
48	6	return $this->request('POST', array(), array(
49	6	'index:brKursneListe:' => '',
50	6	'index:year' => $date->format('Y'),
51	6	'index:inputCalendar1' => $date->format('d/m/Y'),
52	6	'index:vrsta' => call_user_func(function($rateType) {
53		switch ($rateType) {
54	6	case 'foreign_exchange_buying': // FALL TROUGH
55	6	case 'foreign_exchange_selling':
56	2	return 1;
57		break;
		1 ignored issue – show Unused Code introduced 2016-01-15 11:47 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
58	4	case 'foreign_cash_buying': // FALL TROUGH
59	4	case 'foreign_cash_selling':
60	2	return 2;
61		break;
		1 ignored issue – show Unused Code introduced 2016-01-15 11:47 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
62	2	default:
63	2	return 3;
64		break;
		1 ignored issue – show Unused Code introduced 2016-01-15 11:47 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
65	2	}
66	6	}, $rateType),
67	6	'index:prikaz' => 3, // XML
68	6	'index:buttonShow' => 'Show',
69	6	'index' => 'index',
70	6	'com.sun.faces.VIEW' => $this->getFormCsrfToken()
71	6	));
72		}
73
74		/**
75		* Execute HTTP request and get raw body response.
76		*
77		* @param string $method HTTP Method.
78		* @param array $params Params to send with request.
79		* @return StreamInterface
80		*/
81	6	private function request($method, array $query = array(), array $params = array())
82		{
83	6	$client = $this->getGuzzleClient();
84
85	6	$response = $client->request($method, self::SOURCE, array(
86	6	'cookies' => $this->getGuzzleCookieJar(),
87	6	'form_params' => $params,
88		'query' => $query
89	6	));
90
91	6	return $response->getBody();
92		}
93
94		/**
95		* Get NBS's form CSRF token.
96		*
97		* @return string CSRF token.
98		*
99		* @throws \RuntimeException When API is changed.
100		*/
101	6	private function getFormCsrfToken()
102		{
103	6	$crawler = new Crawler($this->request('GET')->getContents());
104
105	6	$hiddens = $crawler->filter('input[type="hidden"]');
106
107		/**
108		* @var \DOMElement $hidden
109		*/
110	6	foreach ($hiddens as $hidden) {
111
112	6	if ($hidden->getAttribute('id') === 'com.sun.faces.VIEW') {
113	6	return $hidden->getAttribute('value');
114		}
115	6	}
116
117		throw new \RuntimeException('FATAL ERROR: National Bank of Serbia changed it\'s API, unable to extract token.');
118		}
119
120		/**
121		* Get Guzzle Client.
122		*
123		* @return Client
124		*/
125	6	private function getGuzzleClient()
126		{
127	6	if ($this->guzzleClient === null) {
128	6	$this->guzzleClient = new Client(array('cookies' => true));
129	6	}
130
131	6	return $this->guzzleClient;
132		}
133
134		/**
135		* Get Guzzle CookieJar.
136		*
137		* @return CookieJar
138		*/
139	6	private function getGuzzleCookieJar()
140		{
141	6	if ($this->guzzleCookieJar === null) {
142	6	$this->guzzleCookieJar = new CookieJar();
143	6	}
144
145	6	return $this->guzzleCookieJar;
146		}
147		}
148

RunOpenCode / exchange-rate-nbs

Push — master ( 03bd4d...8fea20 )

NbsBrowser::getGuzzleClient() A

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