StatementsApiClient::doGetStatements() - Code Metrics - Inspection of "adding support to send and fetch attachments" - php-xapi/client - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 760352...c3f335 )

by Christian

created 2016-10-30 16:25 UTC

StatementsApiClient::doGetStatements() B

↳ Parent: StatementsApiClient

Complexity

Conditions	5
Paths	4

Size

Total Lines	32
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	6.8667

Importance

Changes

Metric	Value
dl	0
loc	32
ccs	11
cts	19
cp	0.5789
rs	8.439
c	0
b	0
f	0
cc	5
eloc	21
nc	4
nop	2
crap	6.8667

<?php

/*
 * This file is part of the xAPI package.
 *
 * (c) Christian Flothmann <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Xabbuh\XApi\Client\Api;

use Xabbuh\XApi\Client\Http\MultipartStatementBody;
use Xabbuh\XApi\Client\Request\HandlerInterface;
use Xabbuh\XApi\Model\StatementId;
use Xabbuh\XApi\Serializer\ActorSerializerInterface;
use Xabbuh\XApi\Serializer\StatementResultSerializerInterface;
use Xabbuh\XApi\Serializer\StatementSerializerInterface;
use Xabbuh\XApi\Model\Actor;
use Xabbuh\XApi\Model\Statement;
use Xabbuh\XApi\Model\StatementResult;
use Xabbuh\XApi\Model\StatementsFilter;

/**
 * Client to access the statements API of an xAPI based learning record store.
 *
 * @author Christian Flothmann <[email protected]>
 */
final class StatementsApiClient implements StatementsApiClientInterface
{
    private $requestHandler;
    private $version;
    private $statementSerializer;
    private $statementResultSerializer;
    private $actorSerializer;

    /**
     * @param HandlerInterface                   $requestHandler            The HTTP request handler
     * @param string                             $version                   The xAPI version
     * @param StatementSerializerInterface       $statementSerializer       The statement serializer
     * @param StatementResultSerializerInterface $statementResultSerializer The statement result serializer
     * @param ActorSerializerInterface           $actorSerializer           The actor serializer
     */
    public function __construct(
        HandlerInterface $requestHandler,
        $version,
        StatementSerializerInterface $statementSerializer,
        StatementResultSerializerInterface $statementResultSerializer,
        ActorSerializerInterface $actorSerializer
    ) {
        $this->requestHandler = $requestHandler;
        $this->version = $version;
        $this->statementSerializer = $statementSerializer;
        $this->statementResultSerializer = $statementResultSerializer;
        $this->actorSerializer = $actorSerializer;
    }

    /**
     * {@inheritDoc}
     */
    public function storeStatement(Statement $statement)
    {
        if (null !== $statement->getId()) {
            return $this->doStoreStatements(

                $statement,
                'put',
                array('statementId' => $statement->getId()->getValue()),
                204
            );
        } else {
            return $this->doStoreStatements($statement);

        }
    }

    /**
     * {@inheritDoc}
     */
    public function storeStatements(array $statements)
    {
        // check that only Statements without ids will be sent to the LRS
        foreach ($statements as $statement) {
            /** @var Statement $statement */

            $isStatement = is_object($statement) && $statement instanceof Statement;

            if (!$isStatement || null !== $statement->getId()) {
                throw new \InvalidArgumentException('API can only handle statements without ids');
            }
        }

        return $this->doStoreStatements($statements);

    }

    /**
     * {@inheritDoc}
     */
    public function voidStatement(Statement $statement, Actor $actor)
    {
        return $this->storeStatement($statement->getVoidStatement($actor));
    }

    /**
     * {@inheritDoc}
     */
    public function getStatement(StatementId $statementId, $attachments = true)
    {
        return $this->doGetStatements('statements', array(

            'statementId' => $statementId->getValue(),
            'attachments' => $attachments ? 'true' : 'false',
        ));
    }

    /**
     * {@inheritDoc}
     */
    public function getVoidedStatement(StatementId $statementId, $attachments = true)
    {
        return $this->doGetStatements('statements', array(

            'voidedStatementId' => $statementId->getValue(),
            'attachments' => $attachments ? 'true' : 'false',
        ));
    }

    /**
     * {@inheritDoc}
     */
    public function getStatements(StatementsFilter $filter = null, $attachments = true)
    {
        $urlParameters = array();

        if (null !== $filter) {
            $urlParameters = $filter->getFilter();
        }

        // the Agent must be JSON encoded
        if (isset($urlParameters['agent'])) {
            $urlParameters['agent'] = $this->actorSerializer->serializeActor($urlParameters['agent']);
        }

        return $this->doGetStatements('statements', $urlParameters);

    }

    /**
     * {@inheritDoc}
     */
    public function getNextStatements(StatementResult $statementResult)
    {
        return $this->doGetStatements($statementResult->getMoreUrlPath()->getValue());

    }

    /**
     * @param Statement|Statement[] $statements
     * @param string                $method
     * @param string[]              $parameters
     * @param int                   $validStatusCode
     *
     * @return Statement|Statement[] The created statement(s)
     */
    private function doStoreStatements($statements, $method = 'post', $parameters = array(), $validStatusCode = 200)
    {
        $attachments = array();

        if (is_array($statements)) {
            foreach ($statements as $statement) {
                if (null !== $statement->getAttachments()) {
                    foreach ($statement->getAttachments() as $attachment) {
                        if ($attachment->getContent()) {
                            $attachments[] = $attachment;
                        }
                    }
                }
            }

            $serializedStatements = $this->statementSerializer->serializeStatements($statements);
        } else {
            if (null !== $statements->getAttachments()) {
                foreach ($statements->getAttachments() as $attachment) {
                    if ($attachment->getContent()) {
                        $attachments[] = $attachment;
                    }
                }
            }

            $serializedStatements = $this->statementSerializer->serializeStatement($statements);
        }

        $headers = array();

        if (!empty($attachments)) {
            $builder = new MultipartStatementBody($serializedStatements, $attachments);
            $headers = array(
                'Content-Type' => 'multipart/mixed; boundary='.$builder->getBoundary(),
            );
            $body = $builder->build();
        } else {
            $body = $serializedStatements;
        }

        $request = $this->requestHandler->createRequest(
            $method,
            'statements',
            $parameters,
            $body,
            $headers
        );
        $response = $this->requestHandler->executeRequest($request, array($validStatusCode));
        $statementIds = json_decode((string) $response->getBody());

        if (is_array($statements)) {
            /** @var Statement[] $statements */
            $createdStatements = array();

            foreach ($statements as $index => $statement) {
                $createdStatements[] = $statement->withId(StatementId::fromString($statementIds[$index]));
            }

            return $createdStatements;
        } else {
            /** @var Statement $statements */

            if (200 === $validStatusCode) {
                return $statements->withId(StatementId::fromString($statementIds[0]));
            } else {
                return $statements;
            }
        }
    }

    /**
     * Fetch one or more Statements.
     *
     * @param string $url           URL to request
     * @param array  $urlParameters URL parameters
     *
     * @return Statement|StatementResult
     */
    private function doGetStatements($url, array $urlParameters = array())
    {
        $request = $this->requestHandler->createRequest('get', $url, $urlParameters);
        $response = $this->requestHandler->executeRequest($request, array(200));

        $contentType = $response->getHeader('Content-Type')[0];
        $body = (string) $response->getBody();
        $attachments = array();

        if (false !== strpos($contentType, 'application/json')) {
            $serializedStatement = $body;
        } else {
            $boundary = substr($contentType, strpos($contentType, '=') + 1);
            $parts = $this->parseMultipartResponseBody($body, $boundary);
            $serializedStatement = $parts[0]['content'];

            unset($parts[0]);

            foreach ($parts as $part) {
                $attachments[$part['headers']['X-Experience-API-Hash'][0]] = array(
                    'type' => $part['headers']['Content-Type'][0],
                    'content' => $part['content'],
                );
            }
        }

        if (isset($urlParameters['statementId']) || isset($urlParameters['voidedStatementId'])) {
            return $this->statementSerializer->deserializeStatement($serializedStatement, $attachments);
        } else {
            return $this->statementResultSerializer->deserializeStatementResult($serializedStatement, $attachments);
        }
    }

    private function parseMultipartResponseBody($body, $boundary)
    {
        $parts = array();
        $lines = explode("\r\n", $body);
        $currentPart = null;
        $isHeaderLine = true;

        foreach ($lines as $line) {
            if (false !== strpos($line, '--'.$boundary)) {
                if (null !== $currentPart) {
                    $parts[] = $currentPart;
                }

                $currentPart = array(
                    'headers' => array(),
                    'content' => '',
                );
                $isBoundaryLine = true;
                $isHeaderLine = true;
            } else {
                $isBoundaryLine = false;
            }

            if ('' === $line) {
                $isHeaderLine = false;
                continue;
            }

            if (!$isBoundaryLine && !$isHeaderLine) {
                $currentPart['content'] .= $line;
            } elseif (!$isBoundaryLine && $isHeaderLine) {
                list($name, $value) = explode(':', $line, 2);
                $currentPart['headers'][$name][] = $value;
            }
        }

        return $parts;
    }
}


1		<?php
2
3		/*
4		* This file is part of the xAPI package.
5		*
6		* (c) Christian Flothmann <[email protected]>
7		*
8		* For the full copyright and license information, please view the LICENSE
9		* file that was distributed with this source code.
10		*/
11
12		namespace Xabbuh\XApi\Client\Api;
13
14		use Xabbuh\XApi\Client\Http\MultipartStatementBody;
15		use Xabbuh\XApi\Client\Request\HandlerInterface;
16		use Xabbuh\XApi\Model\StatementId;
17		use Xabbuh\XApi\Serializer\ActorSerializerInterface;
18		use Xabbuh\XApi\Serializer\StatementResultSerializerInterface;
19		use Xabbuh\XApi\Serializer\StatementSerializerInterface;
20		use Xabbuh\XApi\Model\Actor;
21		use Xabbuh\XApi\Model\Statement;
22		use Xabbuh\XApi\Model\StatementResult;
23		use Xabbuh\XApi\Model\StatementsFilter;
24
25		/**
26		* Client to access the statements API of an xAPI based learning record store.
27		*
28		* @author Christian Flothmann <[email protected]>
29		*/
30		final class StatementsApiClient implements StatementsApiClientInterface
31		{
32		private $requestHandler;
33		private $version;
34		private $statementSerializer;
35		private $statementResultSerializer;
36		private $actorSerializer;
37
38		/**
39		* @param HandlerInterface $requestHandler The HTTP request handler
40		* @param string $version The xAPI version
41		* @param StatementSerializerInterface $statementSerializer The statement serializer
42		* @param StatementResultSerializerInterface $statementResultSerializer The statement result serializer
43		* @param ActorSerializerInterface $actorSerializer The actor serializer
44		*/
45	17	public function __construct(
46		HandlerInterface $requestHandler,
47		$version,
48		StatementSerializerInterface $statementSerializer,
49		StatementResultSerializerInterface $statementResultSerializer,
50		ActorSerializerInterface $actorSerializer
51		) {
52	17	$this->requestHandler = $requestHandler;
53	17	$this->version = $version;
54	17	$this->statementSerializer = $statementSerializer;
55	17	$this->statementResultSerializer = $statementResultSerializer;
56	17	$this->actorSerializer = $actorSerializer;
57	17	}
58
59		/**
60		* {@inheritDoc}
61		*/
62	4	public function storeStatement(Statement $statement)
63		{
64	4	if (null !== $statement->getId()) {
65	2	return $this->doStoreStatements(
		0 ignored issues – show Bug Compatibility introduced 2016-09-25 07:17 UTC by Report Bug Copy Issue Report The expression `$this->doStoreStatements...d()->getValue()), 204);` of type `array\|Xabbuh\XApi\Model\Statement` adds the type `array` to the return on line 65 which is incompatible with the return type declared by the interface `Xabbuh\XApi\Client\Api\S...terface::storeStatement` of type `Xabbuh\XApi\Model\Statement`. Loading history...
66		$statement,
67	2	'put',
68	2	array('statementId' => $statement->getId()->getValue()),
69	2	204
70		);
71		} else {
72	2	return $this->doStoreStatements($statement);
		0 ignored issues – show Bug Compatibility introduced 2016-03-21 10:54 UTC by Report Bug Copy Issue Report The expression `$this->doStoreStatements($statement);` of type `array\|Xabbuh\XApi\Model\Statement` adds the type `array` to the return on line 72 which is incompatible with the return type declared by the interface `Xabbuh\XApi\Client\Api\S...terface::storeStatement` of type `Xabbuh\XApi\Model\Statement`. Loading history...
73		}
74		}
75
76		/**
77		* {@inheritDoc}
78		*/
79	4	public function storeStatements(array $statements)
80		{
81		// check that only Statements without ids will be sent to the LRS
82	4	foreach ($statements as $statement) {
83		/** @var Statement $statement */
84
85	4	$isStatement = is_object($statement) && $statement instanceof Statement;
86
87	4	if (!$isStatement \|\| null !== $statement->getId()) {
88	4	throw new \InvalidArgumentException('API can only handle statements without ids');
89		}
90		}
91
92	1	return $this->doStoreStatements($statements);
		0 ignored issues – show Bug Compatibility introduced 2016-03-21 10:54 UTC by Report Bug Copy Issue Report The expression `$this->doStoreStatements($statements);` of type `array\|Xabbuh\XApi\Model\Statement` adds the type `Xabbuh\XApi\Model\Statement` to the return on line 92 which is incompatible with the return type declared by the interface `Xabbuh\XApi\Client\Api\S...erface::storeStatements` of type `Xabbuh\XApi\Model\Statement[]`. Loading history...
93		}
94
95		/**
96		* {@inheritDoc}
97		*/
98	1	public function voidStatement(Statement $statement, Actor $actor)
99		{
100	1	return $this->storeStatement($statement->getVoidStatement($actor));
101		}
102
103		/**
104		* {@inheritDoc}
105		*/
106	2	public function getStatement(StatementId $statementId, $attachments = true)
107		{
108	2	return $this->doGetStatements('statements', array(
		0 ignored issues – show Bug Compatibility introduced 2016-10-07 22:21 UTC by Report Bug Copy Issue Report The expression `$this->doGetStatements('...s ? 'true' : 'false'));` of type `Xabbuh\XApi\Model\Statem...i\Model\StatementResult` adds the type `Xabbuh\XApi\Model\StatementResult` to the return on line 108 which is incompatible with the return type declared by the interface `Xabbuh\XApi\Client\Api\S...Interface::getStatement` of type `Xabbuh\XApi\Model\Statement`. Loading history...
109	2	'statementId' => $statementId->getValue(),
110	2	'attachments' => $attachments ? 'true' : 'false',
111		));
112		}
113
114		/**
115		* {@inheritDoc}
116		*/
117	2	public function getVoidedStatement(StatementId $statementId, $attachments = true)
118		{
119	2	return $this->doGetStatements('statements', array(
		0 ignored issues – show Bug Compatibility introduced 2016-10-07 22:21 UTC by Report Bug Copy Issue Report The expression `$this->doGetStatements('...s ? 'true' : 'false'));` of type `Xabbuh\XApi\Model\Statem...i\Model\StatementResult` adds the type `Xabbuh\XApi\Model\StatementResult` to the return on line 119 which is incompatible with the return type declared by the interface `Xabbuh\XApi\Client\Api\S...ace::getVoidedStatement` of type `Xabbuh\XApi\Model\Statement`. Loading history...
120	2	'voidedStatementId' => $statementId->getValue(),
121	2	'attachments' => $attachments ? 'true' : 'false',
122		));
123		}
124
125		/**
126		* {@inheritDoc}
127		*/
128	4	public function getStatements(StatementsFilter $filter = null, $attachments = true)
129		{
130	4	$urlParameters = array();
131
132	4	if (null !== $filter) {
133	3	$urlParameters = $filter->getFilter();
134		}
135
136		// the Agent must be JSON encoded
137	4	if (isset($urlParameters['agent'])) {
138	1	$urlParameters['agent'] = $this->actorSerializer->serializeActor($urlParameters['agent']);
139		}
140
141	4	return $this->doGetStatements('statements', $urlParameters);
		0 ignored issues – show Bug Compatibility introduced 2016-03-21 10:54 UTC by Report Bug Copy Issue Report The expression `$this->doGetStatements('...ents', $urlParameters);` of type `Xabbuh\XApi\Model\Statem...i\Model\StatementResult` adds the type `Xabbuh\XApi\Model\Statement` to the return on line 141 which is incompatible with the return type declared by the interface `Xabbuh\XApi\Client\Api\S...nterface::getStatements` of type `Xabbuh\XApi\Model\StatementResult`. Loading history...
142		}
143
144		/**
145		* {@inheritDoc}
146		*/
147	1	public function getNextStatements(StatementResult $statementResult)
148		{
149	1	return $this->doGetStatements($statementResult->getMoreUrlPath()->getValue());
		0 ignored issues – show Bug Compatibility introduced 2016-09-26 07:01 UTC by Report Bug Copy Issue Report The expression `$this->doGetStatements($...UrlPath()->getValue());` of type `Xabbuh\XApi\Model\Statem...i\Model\StatementResult` adds the type `Xabbuh\XApi\Model\Statement` to the return on line 149 which is incompatible with the return type declared by the interface `Xabbuh\XApi\Client\Api\S...face::getNextStatements` of type `Xabbuh\XApi\Model\StatementResult`. Loading history...
150		}
151
152		/**
153		* @param Statement\|Statement[] $statements
154		* @param string $method
155		* @param string[] $parameters
156		* @param int $validStatusCode
157		*
158		* @return Statement\|Statement[] The created statement(s)
159		*/
160	5	private function doStoreStatements($statements, $method = 'post', $parameters = array(), $validStatusCode = 200)
161		{
162	5	$attachments = array();
163
164	5	if (is_array($statements)) {
165	1	foreach ($statements as $statement) {
166	1	if (null !== $statement->getAttachments()) {
167		foreach ($statement->getAttachments() as $attachment) {
168		if ($attachment->getContent()) {
169	1	$attachments[] = $attachment;
170		}
171		}
172		}
173		}
174
175	1	$serializedStatements = $this->statementSerializer->serializeStatements($statements);
176		} else {
177	4	if (null !== $statements->getAttachments()) {
178		foreach ($statements->getAttachments() as $attachment) {
179		if ($attachment->getContent()) {
180		$attachments[] = $attachment;
181		}
182		}
183		}
184
185	4	$serializedStatements = $this->statementSerializer->serializeStatement($statements);
186		}
187
188	5	$headers = array();
189
190	5	if (!empty($attachments)) {
191		$builder = new MultipartStatementBody($serializedStatements, $attachments);
192		$headers = array(
193		'Content-Type' => 'multipart/mixed; boundary='.$builder->getBoundary(),
194		);
195		$body = $builder->build();
196		} else {
197	5	$body = $serializedStatements;
198		}
199
200	5	$request = $this->requestHandler->createRequest(
201		$method,
202	5	'statements',
203		$parameters,
204		$body,
205		$headers
206		);
207	5	$response = $this->requestHandler->executeRequest($request, array($validStatusCode));
208	5	$statementIds = json_decode((string) $response->getBody());
209
210	5	if (is_array($statements)) {
211		/** @var Statement[] $statements */
212	1	$createdStatements = array();
213
214	1	foreach ($statements as $index => $statement) {
215	1	$createdStatements[] = $statement->withId(StatementId::fromString($statementIds[$index]));
216		}
217
218	1	return $createdStatements;
219		} else {
220		/** @var Statement $statements */
221
222	4	if (200 === $validStatusCode) {
223	2	return $statements->withId(StatementId::fromString($statementIds[0]));
224		} else {
225	2	return $statements;
226		}
227		}
228		}
229
230		/**
231		* Fetch one or more Statements.
232		*
233		* @param string $url URL to request
234		* @param array $urlParameters URL parameters
235		*
236		* @return Statement\|StatementResult
237		*/
238	9	private function doGetStatements($url, array $urlParameters = array())
239		{
240	9	$request = $this->requestHandler->createRequest('get', $url, $urlParameters);
241	9	$response = $this->requestHandler->executeRequest($request, array(200));
242
243	7	$contentType = $response->getHeader('Content-Type')[0];
244	7	$body = (string) $response->getBody();
245	7	$attachments = array();
246
247	7	if (false !== strpos($contentType, 'application/json')) {
248	7	$serializedStatement = $body;
249		} else {
250		$boundary = substr($contentType, strpos($contentType, '=') + 1);
251		$parts = $this->parseMultipartResponseBody($body, $boundary);
252		$serializedStatement = $parts[0]['content'];
253
254		unset($parts[0]);
255
256		foreach ($parts as $part) {
257		$attachments[$part['headers']['X-Experience-API-Hash'][0]] = array(
258		'type' => $part['headers']['Content-Type'][0],
259		'content' => $part['content'],
260		);
261		}
262		}
263
264	7	if (isset($urlParameters['statementId']) \|\| isset($urlParameters['voidedStatementId'])) {
265	2	return $this->statementSerializer->deserializeStatement($serializedStatement, $attachments);
266		} else {
267	5	return $this->statementResultSerializer->deserializeStatementResult($serializedStatement, $attachments);
268		}
269		}
270
271		private function parseMultipartResponseBody($body, $boundary)
272		{
273		$parts = array();
274		$lines = explode("\r\n", $body);
275		$currentPart = null;
276		$isHeaderLine = true;
277
278		foreach ($lines as $line) {
279		if (false !== strpos($line, '--'.$boundary)) {
280		if (null !== $currentPart) {
281		$parts[] = $currentPart;
282		}
283
284		$currentPart = array(
285		'headers' => array(),
286		'content' => '',
287		);
288		$isBoundaryLine = true;
289		$isHeaderLine = true;
290		} else {
291		$isBoundaryLine = false;
292		}
293
294		if ('' === $line) {
295		$isHeaderLine = false;
296		continue;
297		}
298
299		if (!$isBoundaryLine && !$isHeaderLine) {
300		$currentPart['content'] .= $line;
301		} elseif (!$isBoundaryLine && $isHeaderLine) {
302		list($name, $value) = explode(':', $line, 2);
303		$currentPart['headers'][$name][] = $value;
304		}
305		}
306
307		return $parts;
308		}
309		}
310

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StatementsApiClient::doGetStatements() B

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