CurlBrowser::getResponseHeaders() - Code Metrics - Inspection of "fix phpstan issues" - webservco/framework - Measure and Improve Code Quality continuously with Scrutinizer

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by Radu

created 2018-10-26 16:00 UTC

CurlBrowser::getResponseHeaders() A

↳ Parent: CurlBrowser

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php
namespace WebServCo\Framework;

use WebServCo\Framework\Http;
use WebServCo\Framework\Exceptions\ApplicationException;

final class CurlBrowser implements
    \WebServCo\Framework\Interfaces\HttpBrowserInterface
{
    protected $debug;
    protected $skipSslVerification;
    protected $requestHeaders;

    protected $method;
    protected $postData;

    protected $curl;
    protected $debugStderr;
    protected $debugOutput;
    protected $debugInfo;
    protected $response;
    protected $responseHeaders;

    protected $logger;

    protected $curlError;

    public function __construct(\WebServCo\Framework\Interfaces\LoggerInterface $logger)
    {
        $this->logger = $logger;
        $this->debug = false;
        $this->skipSslVerification = false;
        $this->requestHeaders = [];
    }

    public function setDebug(bool $debug)
    {
        $this->debug = $debug;
    }

    public function setSkipSSlVerification(bool $skipSslVerification)
    {
        $this->skipSslVerification = $skipSslVerification;
    }

    public function setRequestHeader($name, $value)
    {
        $this->requestHeaders[$name] = $value;
    }

    public function getResponseHeaders()
    {
        return $this->responseHeaders;
    }

    public function get($url)
    {
        $this->setMethod(Http::METHOD_GET);
        return $this->retrieve($url);
    }

    public function head($url)
    {
        $this->setMethod(Http::METHOD_HEAD);
        return $this->retrieve($url);
    }

    public function post($url, $postData = [])
    {
        $this->setMethod(Http::METHOD_POST);
        $this->setPostData($postData);
        return $this->retrieve($url);
    }

    protected function setMethod($method)
    {
        if (!in_array($method, Http::getMethods())) {
            throw new ApplicationException('Unsupported method');
        }
        $this->method = $method;
        return true;
    }

    protected function setPostData(array $postData)
    {
        $this->postData = $postData;
    }

    protected function debugInit()
    {
        if ($this->debug) {
            ob_start();
            $this->debugStderr = fopen('php://output', 'w');
            return true;
        }
        return false;
    }

    protected function debugDo()
    {
        if ($this->debug) {
            //curl_setopt($this->curl, CURLINFO_HEADER_OUT, 1); /* verbose not working if this is enabled */
            curl_setopt($this->curl, CURLOPT_VERBOSE, 1);
            curl_setopt($this->curl, CURLOPT_STDERR, $this->debugStderr);
            return false;
        }
        return false;
    }

    protected function debugFinish()
    {
        if ($this->debug) {
            fclose($this->debugStderr);
            $this->debugOutput = ob_get_clean();

            $this->logger->debug('CURL INFO:', $this->debugInfo);
            $this->logger->debug('CURL VERBOSE:', $this->debugOutput);
            $this->logger->debug('CURL RESPONSE:', $this->response);

            return true;
        }
        return false;
    }

    protected function getHttpCode()
    {
        return isset($this->debugInfo['http_code']) ? $this->debugInfo['http_code']: false;
    }

    protected function parseRequestHeaders($headers)
    {
        $data = [];
        foreach ($headers as $k => $v) {
            if (is_array($v)) {
                foreach ($v as $item) {
                    $data[] = sprintf('%s: %s', $k, $item);
                }
            } else {
                $data[] = sprintf('%s: %s', $k, $v);
            }
        }
        return $data;
    }

    protected function parseResponseHeaders($headerString)
    {
        $headers = [];
        $lines = explode("\r\n", $headerString);
        foreach ($lines as $index => $line) {
            if (0 === $index) {
                continue; /* we'll get the status code elsewhere */
            }
            $parts = explode(': ', $line, 2);
            if (!isset($parts[1])) {
                continue; // invalid header (missing colon)
            }
            list($key, $value) = $parts;
            if (isset($headers[$key])) {
                if (!is_array($headers[$key])) {
                    $headers[$key] = [$headers[$key]];
                }
                // check cookies
                if ('Set-Cookie' == $key) {
                    $parts = explode('=', $value, 2);
                    $cookieName = $parts[0];
                    if (is_array($headers[$key])) {
                        foreach ($headers[$key] as $cookieIndex => $existingCookie) {
                            //check if we already have a cookie with the same name
                            if (0 === mb_stripos($existingCookie, $cookieName)) {
                                // remove previous cookie with the same name
                                unset($headers[$key][$cookieIndex]);
                            }
                        }
                    }
                }
                $headers[$key][] = $value;
                $headers[$key] = array_values((array) $headers[$key]); // re-index array
            } else {
                $headers[$key] = $value;
            }
        }
        return $headers;
    }

    protected function retrieve($url)
    {
        $this->debugInit();


        $this->curl = curl_init();
        if (!is_resource($this->curl)) {
            throw new ApplicationException('Not a valid resource');
        }
        curl_setopt_array(
            $this->curl,
            [
                CURLOPT_RETURNTRANSFER => true, /* return instead of outputting */
                CURLOPT_URL => $url,
                CURLOPT_HEADER => true, /* include the header in the output */
                CURLOPT_FOLLOWLOCATION => true, /* follow redirects */
                CURLOPT_CONNECTTIMEOUT => 60, // The number of seconds to wait while trying to connect.
                CURLOPT_TIMEOUT => 60, // The maximum number of seconds to allow cURL functions to execute.
            ]
        );
        if ($this->skipSslVerification) {
            // stop cURL from verifying the peer's certificate
            curl_setopt($this->curl, CURLOPT_SSL_VERIFYPEER, false);
            // don't check the existence of a common name in the SSL peer certificate
            curl_setopt($this->curl, CURLOPT_SSL_VERIFYHOST, 0);
        }
        if (!empty($this->requestHeaders)) {
            curl_setopt(
                $this->curl,
                CURLOPT_HTTPHEADER,
                $this->parseRequestHeaders($this->requestHeaders)
            );
        }

        $this->debugDo();

        switch ($this->method) {
            case Http::METHOD_POST:
                curl_setopt($this->curl, CURLOPT_POST, true);
                if (!empty($this->postData)) {
                    curl_setopt($this->curl, CURLOPT_POSTFIELDS, $this->postData);
                }
                break;
            case Http::METHOD_HEAD:
                curl_setopt($this->curl, CURLOPT_NOBODY, true);
                break;
        }

        $this->response = curl_exec($this->curl);
        $this->curlError = curl_error($this->curl);
        if (false === $this->response) {
            throw new ApplicationException(sprintf("cURL error: %s", $this->curlError));
        }

        $this->debugInfo = curl_getinfo($this->curl);

        curl_close($this->curl);

        $httpCode = $this->getHttpCode();

        if (empty($httpCode)) {
            throw new ApplicationException(sprintf("Empty HTTP status code. cURL error: %s", $this->curlError));
        }

        /**
         * For redirects, the response will contain evey header/body pair.
         * The last header/body will be at the end of the response.
         */
        $responseParts = explode("\r\n\r\n", (string) $this->response);
        $body = trim((string) array_pop($responseParts));

        $this->responseHeaders = [];
        foreach ($responseParts as $item) {
            $this->responseHeaders[] = $this->parseResponseHeaders($item);
        }

        $this->debugFinish();

        return new \WebServCo\Framework\HttpResponse(
            $body,
            $httpCode,
            end($this->responseHeaders)
        );
    }
}


1			<?php
2			namespace WebServCo\Framework;
3
4			use WebServCo\Framework\Http;
5			use WebServCo\Framework\Exceptions\ApplicationException;
6
7			final class CurlBrowser implements
8			\WebServCo\Framework\Interfaces\HttpBrowserInterface
9			{
10			protected $debug;
11			protected $skipSslVerification;
12			protected $requestHeaders;
13
14			protected $method;
15			protected $postData;
16
17			protected $curl;
18			protected $debugStderr;
19			protected $debugOutput;
20			protected $debugInfo;
21			protected $response;
22			protected $responseHeaders;
23
24			protected $logger;
25
26			protected $curlError;
27
28			public function __construct(\WebServCo\Framework\Interfaces\LoggerInterface $logger)
29			{
30			$this->logger = $logger;
31			$this->debug = false;
32			$this->skipSslVerification = false;
33			$this->requestHeaders = [];
34			}
35
36			public function setDebug(bool $debug)
37			{
38			$this->debug = $debug;
39			}
40
41			public function setSkipSSlVerification(bool $skipSslVerification)
42			{
43			$this->skipSslVerification = $skipSslVerification;
44			}
45
46			public function setRequestHeader($name, $value)
47			{
48			$this->requestHeaders[$name] = $value;
49			}
50
51			public function getResponseHeaders()
52			{
53			return $this->responseHeaders;
54			}
55
56			public function get($url)
57			{
58			$this->setMethod(Http::METHOD_GET);
59			return $this->retrieve($url);
60			}
61
62			public function head($url)
63			{
64			$this->setMethod(Http::METHOD_HEAD);
65			return $this->retrieve($url);
66			}
67
68			public function post($url, $postData = [])
69			{
70			$this->setMethod(Http::METHOD_POST);
71			$this->setPostData($postData);
72			return $this->retrieve($url);
73			}
74
75			protected function setMethod($method)
76			{
77			if (!in_array($method, Http::getMethods())) {
78			throw new ApplicationException('Unsupported method');
79			}
80			$this->method = $method;
81			return true;
82			}
83
84			protected function setPostData(array $postData)
85			{
86			$this->postData = $postData;
87			}
88
89			protected function debugInit()
90			{
91			if ($this->debug) {
92			ob_start();
93			$this->debugStderr = fopen('php://output', 'w');
94			return true;
95			}
96			return false;
97			}
98
99			protected function debugDo()
100			{
101			if ($this->debug) {
102			//curl_setopt($this->curl, CURLINFO_HEADER_OUT, 1); /* verbose not working if this is enabled */
103			curl_setopt($this->curl, CURLOPT_VERBOSE, 1);
104			curl_setopt($this->curl, CURLOPT_STDERR, $this->debugStderr);
105			return false;
106			}
107			return false;
108			}
109
110			protected function debugFinish()
111			{
112			if ($this->debug) {
113			fclose($this->debugStderr);
114			$this->debugOutput = ob_get_clean();
115
116			$this->logger->debug('CURL INFO:', $this->debugInfo);
117			$this->logger->debug('CURL VERBOSE:', $this->debugOutput);
118			$this->logger->debug('CURL RESPONSE:', $this->response);
119
120			return true;
121			}
122			return false;
123			}
124
125			protected function getHttpCode()
126			{
127			return isset($this->debugInfo['http_code']) ? $this->debugInfo['http_code']: false;
128			}
129
130			protected function parseRequestHeaders($headers)
131			{
132			$data = [];
133			foreach ($headers as $k => $v) {
134			if (is_array($v)) {
135			foreach ($v as $item) {
136			$data[] = sprintf('%s: %s', $k, $item);
137			}
138			} else {
139			$data[] = sprintf('%s: %s', $k, $v);
140			}
141			}
142			return $data;
143			}
144
145			protected function parseResponseHeaders($headerString)
146			{
147			$headers = [];
148			$lines = explode("\r\n", $headerString);
149			foreach ($lines as $index => $line) {
150			if (0 === $index) {
151			continue; /* we'll get the status code elsewhere */
152			}
153			$parts = explode(': ', $line, 2);
154			if (!isset($parts[1])) {
155			continue; // invalid header (missing colon)
156			}
157			list($key, $value) = $parts;
158			if (isset($headers[$key])) {
159			if (!is_array($headers[$key])) {
160			$headers[$key] = [$headers[$key]];
161			}
162			// check cookies
163			if ('Set-Cookie' == $key) {
164			$parts = explode('=', $value, 2);
165			$cookieName = $parts[0];
166			if (is_array($headers[$key])) {
167			foreach ($headers[$key] as $cookieIndex => $existingCookie) {
168			//check if we already have a cookie with the same name
169			if (0 === mb_stripos($existingCookie, $cookieName)) {
170			// remove previous cookie with the same name
171			unset($headers[$key][$cookieIndex]);
172			}
173			}
174			}
175			}
176			$headers[$key][] = $value;
177			$headers[$key] = array_values((array) $headers[$key]); // re-index array
178			} else {
179			$headers[$key] = $value;
180			}
181			}
182			return $headers;
183			}
184
185			protected function retrieve($url)
186			{
187			$this->debugInit();
188
189
190			$this->curl = curl_init();
191			if (!is_resource($this->curl)) {
192			throw new ApplicationException('Not a valid resource');
193			}
194			curl_setopt_array(
195			$this->curl,
196			[
197			CURLOPT_RETURNTRANSFER => true, /* return instead of outputting */
198			CURLOPT_URL => $url,
199			CURLOPT_HEADER => true, /* include the header in the output */
200			CURLOPT_FOLLOWLOCATION => true, /* follow redirects */
201			CURLOPT_CONNECTTIMEOUT => 60, // The number of seconds to wait while trying to connect.
202			CURLOPT_TIMEOUT => 60, // The maximum number of seconds to allow cURL functions to execute.
203			]
204			);
205			if ($this->skipSslVerification) {
206			// stop cURL from verifying the peer's certificate
207			curl_setopt($this->curl, CURLOPT_SSL_VERIFYPEER, false);
208			// don't check the existence of a common name in the SSL peer certificate
209			curl_setopt($this->curl, CURLOPT_SSL_VERIFYHOST, 0);
210			}
211			if (!empty($this->requestHeaders)) {
212			curl_setopt(
213			$this->curl,
214			CURLOPT_HTTPHEADER,
215			$this->parseRequestHeaders($this->requestHeaders)
216			);
217			}
218
219			$this->debugDo();
220
221			switch ($this->method) {
222			case Http::METHOD_POST:
223			curl_setopt($this->curl, CURLOPT_POST, true);
224			if (!empty($this->postData)) {
225			curl_setopt($this->curl, CURLOPT_POSTFIELDS, $this->postData);
226			}
227			break;
228			case Http::METHOD_HEAD:
229			curl_setopt($this->curl, CURLOPT_NOBODY, true);
230			break;
231			}
232
233			$this->response = curl_exec($this->curl);
234			$this->curlError = curl_error($this->curl);
235			if (false === $this->response) {
236			throw new ApplicationException(sprintf("cURL error: %s", $this->curlError));
237			}
238
239			$this->debugInfo = curl_getinfo($this->curl);
240
241			curl_close($this->curl);
242
243			$httpCode = $this->getHttpCode();
244
245			if (empty($httpCode)) {
246			throw new ApplicationException(sprintf("Empty HTTP status code. cURL error: %s", $this->curlError));
247			}
248
249			/**
250			* For redirects, the response will contain evey header/body pair.
251			* The last header/body will be at the end of the response.
252			*/
253			$responseParts = explode("\r\n\r\n", (string) $this->response);
254			$body = trim((string) array_pop($responseParts));
255
256			$this->responseHeaders = [];
257			foreach ($responseParts as $item) {
258			$this->responseHeaders[] = $this->parseResponseHeaders($item);
259			}
260
261			$this->debugFinish();
262
263			return new \WebServCo\Framework\HttpResponse(
264			$body,
265			$httpCode,
266			end($this->responseHeaders)
267			);
268			}
269			}
270

webservco / framework

Push — master ( 2d5568...2edf78 )

CurlBrowser::getResponseHeaders() A

Complexity

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Duplication

Importance

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