Server::getChecksum() - Code Metrics - Inspection of "Add support for tus concatenation extension" - ankitpokhrel/tus-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#11)

by Ankit

created 2018-01-27 08:23 UTC

Server::getChecksum() A

↳ Parent: Server

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	1
dl	0
loc	3
ccs	0
cts	2
cp	0
crap	2
rs	10
c	0
b	0
f	0

<?php

namespace TusPhp\Tus;

use TusPhp\File;
use Carbon\Carbon;
use TusPhp\Request;
use TusPhp\Response;
use TusPhp\Cache\Cacheable;
use TusPhp\Exception\FileException;
use TusPhp\Exception\ConnectionException;
use TusPhp\Exception\OutOfRangeException;
use Illuminate\Http\Response as HttpResponse;
use Symfony\Component\HttpFoundation\BinaryFileResponse;

class Server extends AbstractTus
{
    /** @const Tus Creation Extension */
    const TUS_EXTENSION_CREATION = 'creation';

    /** @const Tus Termination Extension */
    const TUS_EXTENSION_TERMINATION = 'termination';

    /** @const Tus Checksum Extension */
    const TUS_EXTENSION_CHECKSUM = 'checksum';

    /** @const Tus Expiration Extension */
    const TUS_EXTENSION_EXPIRATION = 'expiration';

    /** @const Tus Concatenation Extension */
    const TUS_EXTENSION_CONCATENATION = 'concatenation';

    /** @const 460 Checksum Mismatch */
    const HTTP_CHECKSUM_MISMATCH = 460;

    /** @var Request */
    protected $request;

    /** @var Response */
    protected $response;

    /** @var string */
    protected $uploadDir;

    /**
     * TusServer constructor.
     *
     * @param Cacheable|string $cacheAdapter
     */
    public function __construct($cacheAdapter = 'file')
    {
        $this->request   = new Request;
        $this->response  = new Response;
        $this->uploadDir = dirname(__DIR__, 2) . DIRECTORY_SEPARATOR . 'uploads';

        $this->setCache($cacheAdapter);
    }

    /**
     * Set upload dir.
     *
     * @param string $path
     *
     * @return void
     */
    public function setUploadDir(string $path)
    {
        $this->uploadDir = $path;
    }

    /**
     * Get upload dir.
     *
     * @return string
     */
    public function getUploadDir() : string
    {
        return $this->uploadDir;
    }

    /**
     * Get request.
     *
     * @return Request
     */
    public function getRequest() : Request
    {
        return $this->request;
    }

    /**
     * Get request.
     *
     * @return Response
     */
    public function getResponse() : Response
    {
        return $this->response;
    }

    /**
     * Get file checksum.
     *
     * @param string $filePath
     *
     * @return string
     */
    public function getChecksum(string $filePath)
    {
        return hash_file($this->getChecksumAlgorithm(), $filePath);
    }

    /**
     * Get checksum algorithm.
     *
     * @return string|null
     */
    public function getChecksumAlgorithm()
    {
        $checksumHeader = $this->getRequest()->header('Upload-Checksum');

        if (empty($checksumHeader)) {
            return null;
        }

        list($checksumAlgorithm) = explode(' ', $checksumHeader);

        return $checksumAlgorithm;
    }

    /**
     * Handle all HTTP request.
     *
     * @return null|HttpResponse
     */
    public function serve()
    {
        $method = $this->getRequest()->method();

        if ( ! in_array($method, $this->request->allowedHttpVerbs())) {
            return $this->response->send(null, HttpResponse::HTTP_METHOD_NOT_ALLOWED);
        }

        $method = 'handle' . ucfirst(strtolower($method));

        $this->{$method}();

        $this->exit();
    }

    /**
     * Exit from current php process.
     *
     * @codeCoverageIgnore
     */
    protected function exit()
    {
        exit(0);
    }

    /**
     * Handle OPTIONS request.
     *
     * @return HttpResponse
     */
    protected function handleOptions() : HttpResponse
    {
        return $this->response->send(
            null,
            HttpResponse::HTTP_OK,
            [
                'Allow' => $this->request->allowedHttpVerbs(),
                'Tus-Version' => self::TUS_PROTOCOL_VERSION,
                'Tus-Extension' => implode(',', [
                    self::TUS_EXTENSION_CREATION,
                    self::TUS_EXTENSION_TERMINATION,
                    self::TUS_EXTENSION_CHECKSUM,
                    self::TUS_EXTENSION_EXPIRATION,
                    self::TUS_EXTENSION_CONCATENATION,
                ]),
                'Tus-Checksum-Algorithm' => $this->getSupportedHashAlgorithms(),
            ]
        );
    }

    /**
     * Handle HEAD request.
     *
     * @return HttpResponse
     */
    protected function handleHead() : HttpResponse
    {
        $checksum = $this->request->checksum();

        if ( ! $this->cache->get($checksum)) {
            return $this->response->send(null, HttpResponse::HTTP_NOT_FOUND);
        }

        $offset = $this->cache->get($checksum)['offset'] ?? false;

        if (false === $offset) {
            return $this->response->send(null, HttpResponse::HTTP_GONE);
        }

        return $this->response->send(null, HttpResponse::HTTP_OK, [
            'Upload-Offset' => (int) $offset,
            'Cache-Control' => 'no-store',
            'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
        ]);
    }

    /**
     * Handle POST request.
     *
     * @return HttpResponse
     */
    protected function handlePost() : HttpResponse
    {
        $fileName = $this->getRequest()->extractFileName();

        if (empty($fileName)) {
            return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
        }

        $checksum = $this->getUploadChecksum();
        $filePath = $this->uploadDir . DIRECTORY_SEPARATOR . $fileName;

        if ($this->getRequest()->isFinal()) {
            return $this->handleConcatenation($fileName, $filePath);
        }

        if ($this->getRequest()->isPartial()) {
            $filePath = $this->getPathForPartialUpload($checksum) . $fileName;
        }

        $location = $this->getRequest()->url() . '/' . basename($this->uploadDir) . '/' . $fileName;

        $file = $this->buildFile([
            'name' => $fileName,
            'offset' => 0,
            'size' => $this->getRequest()->header('Upload-Length'),
            'file_path' => $filePath,
            'location' => $location,
        ])->setChecksum($checksum);

        $this->cache->set($checksum, $file->details());

        return $this->response->send(
            ['data' => ['checksum' => $checksum]],
            HttpResponse::HTTP_CREATED,
            [
                'Location' => $location,
                'Upload-Expires' => $this->cache->get($checksum)['expires_at'],
                'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
            ]
        );
    }

    /**
     * Handle file concatenation.
     *
     * @param string $fileName
     * @param string $filePath
     *
     * @return HttpResponse
     */
    protected function handleConcatenation(string $fileName, string $filePath) : HttpResponse
    {
        $files    = [];
        $partials = $this->getRequest()->extractPartials();
        $location = $this->getRequest()->url() . '/' . basename($this->uploadDir) . '/' . $fileName;

        foreach ($partials as $partial) {
            $fileMeta = $this->getCache()->get($partial);

            $files[] = $fileMeta['file_path'];
        }

        $file = (new File($fileName, $this->cache))->setFilePath($filePath);

        $file->merge($files);

        // Verify checksum.
        $checksum = $this->getChecksum($filePath);

        if ($checksum !== $this->getUploadChecksum()) {
            return $this->response->send(null, self::HTTP_CHECKSUM_MISMATCH);
        }

        // Cleanup.
        $file->delete($files, true);

        return $this->response->send(
            ['data' => ['checksum' => $checksum]],
            HttpResponse::HTTP_CREATED,
            [
                'Location' => $location,
                'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
            ]
        );
    }

    /**
     * Handle PATCH request.
     *
     * @return HttpResponse
     */
    protected function handlePatch() : HttpResponse
    {
        $checksum = $this->request->checksum();

        if ( ! $this->cache->get($checksum)) {
            return $this->response->send(null, HttpResponse::HTTP_GONE);
        }

        $meta = $this->cache->get($checksum);
        $file = $this->buildFile($meta);

        try {
            $fileSize = $file->getFileSize();
            $offset   = $file->setChecksum($checksum)->upload($fileSize);

            // If upload is done, verify checksum.
            if ($offset === $fileSize && $checksum !== $this->getUploadChecksum()) {
                return $this->response->send(null, self::HTTP_CHECKSUM_MISMATCH);
            }
        } catch (FileException $e) {
            return $this->response->send($e->getMessage(), HttpResponse::HTTP_UNPROCESSABLE_ENTITY);
        } catch (OutOfRangeException $e) {
            return $this->response->send(null, HttpResponse::HTTP_REQUESTED_RANGE_NOT_SATISFIABLE);
        } catch (ConnectionException $e) {
            return $this->response->send(null, HttpResponse::HTTP_CONTINUE);
        }

        return $this->response->send(null, HttpResponse::HTTP_NO_CONTENT, [
            'Upload-Expires' => $this->cache->get($checksum)['expires_at'],
            'Upload-Offset' => $offset,
            'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
        ]);
    }

    /**
     * Handle GET request.
     *
     * @return BinaryFileResponse|HttpResponse
     */
    protected function handleGet()
    {
        $checksum = $this->request->checksum();

        if (empty($checksum)) {
            return $this->response->send('400 bad request.', HttpResponse::HTTP_BAD_REQUEST);
        }

        $fileMeta = $this->cache->get($checksum);

        if ( ! $fileMeta) {
            return $this->response->send('404 upload not found.', HttpResponse::HTTP_NOT_FOUND);
        }

        $resource = $fileMeta['file_path'] ?? null;
        $fileName = $fileMeta['name'] ?? null;

        if ( ! $resource || ! file_exists($resource)) {
            return $this->response->send('404 upload not found.', HttpResponse::HTTP_NOT_FOUND);
        }

        return $this->response->download($resource, $fileName);
    }

    /**
     * Handle DELETE request.
     *
     * @return HttpResponse
     */
    protected function handleDelete() : HttpResponse
    {
        $checksum = $this->request->checksum();
        $fileMeta = $this->cache->get($checksum);
        $resource = $fileMeta['file_path'] ?? null;

        if ( ! $resource) {
            return $this->response->send(null, HttpResponse::HTTP_NOT_FOUND);
        }

        $isDeleted = $this->cache->delete($checksum);

        if ( ! $isDeleted || ! file_exists($resource)) {
            return $this->response->send(null, HttpResponse::HTTP_GONE);
        }

        unlink($resource);

        return $this->response->send(null, HttpResponse::HTTP_NO_CONTENT, [
            'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
            'Tus-Extension' => self::TUS_EXTENSION_TERMINATION,
        ]);
    }

    /**
     * Build file object.
     *
     * @param array $meta
     *
     * @return File
     */
    protected function buildFile(array $meta) : File
    {
        return (new File($meta['name'], $this->cache))
            ->setMeta($meta['offset'], $meta['size'], $meta['file_path'], $meta['location']);
    }

    /**
     * Get list of supported hash algorithms.
     *
     * @return string
     */
    protected function getSupportedHashAlgorithms()
    {
        $supportedAlgorithms = hash_algos();

        $algorithms = [];
        foreach ($supportedAlgorithms as $hashAlgo) {
            if (false !== strpos($hashAlgo, ',')) {
                $algorithms[] = "'{$hashAlgo}'";
            } else {
                $algorithms[] = $hashAlgo;
            }
        }

        return implode(',', $algorithms);
    }

    /**
     * Verify and get upload checksum from header.
     *
     * @return string|HttpResponse
     */
    protected function getUploadChecksum()
    {
        $checksumHeader = $this->getRequest()->header('Upload-Checksum');

        if (empty($checksumHeader)) {
            return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
        }

        list($checksumAlgorithm, $checksum) = explode(' ', $checksumHeader);

        $checksum = base64_decode($checksum);

        if ( ! in_array($checksumAlgorithm, hash_algos()) || false === $checksum) {
            return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
        }

        return $checksum;
    }

    /**
     * Get expired but incomplete uploads.
     *
     * @param array|null $contents
     *
     * @return bool
     */
    protected function isExpired($contents) : bool
    {
        $isExpired = empty($contents['expires_at']) || Carbon::parse($contents['expires_at'])->lt(Carbon::now());

        if ($isExpired && $contents['offset'] !== $contents['size']) {
            return true;
        }

        return false;
    }

    /**
     * Get path for partial upload.
     *
     * @param string $checksum
     *
     * @return string
     */
    protected function getPathForPartialUpload(string $checksum) : string
    {
        list($actualChecksum) = explode(self::PARTIAL_UPLOAD_NAME_SEPARATOR, $checksum);

        $path = $this->uploadDir . DIRECTORY_SEPARATOR . $actualChecksum . DIRECTORY_SEPARATOR;

        if ( ! file_exists($path)) {
            mkdir($path);
        }

        return $path;
    }

    /**
     * Delete expired resources.
     *
     * @return array
     */
    public function handleExpiration()
    {
        $deleted   = [];
        $cacheKeys = $this->cache->keys();

        foreach ($cacheKeys as $key) {
            $fileMeta = $this->cache->get($key, true);

            if ( ! $this->isExpired($fileMeta)) {
                continue;
            }

            $cacheDeleted = $this->cache->delete($key);

            if ( ! $cacheDeleted) {
                continue;
            }

            if (file_exists($fileMeta['file_path']) && is_writable($fileMeta['file_path'])) {
                unlink($fileMeta['file_path']);
            }

            $deleted[] = $fileMeta;
        }

        return $deleted;
    }

    /**
     * No other methods are allowed.
     *
     * @param string $method
     * @param array  $params
     *
     * @return HttpResponse|BinaryFileResponse
     */
    public function __call(string $method, array $params)
    {
        return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
    }
}


1		<?php
2
3		namespace TusPhp\Tus;
4
5		use TusPhp\File;
6		use Carbon\Carbon;
7		use TusPhp\Request;
8		use TusPhp\Response;
9		use TusPhp\Cache\Cacheable;
10		use TusPhp\Exception\FileException;
11		use TusPhp\Exception\ConnectionException;
12		use TusPhp\Exception\OutOfRangeException;
13		use Illuminate\Http\Response as HttpResponse;
14		use Symfony\Component\HttpFoundation\BinaryFileResponse;
15
16		class Server extends AbstractTus
17		{
18		/** @const Tus Creation Extension */
19		const TUS_EXTENSION_CREATION = 'creation';
20
21		/** @const Tus Termination Extension */
22		const TUS_EXTENSION_TERMINATION = 'termination';
23
24		/** @const Tus Checksum Extension */
25		const TUS_EXTENSION_CHECKSUM = 'checksum';
26
27		/** @const Tus Expiration Extension */
28		const TUS_EXTENSION_EXPIRATION = 'expiration';
29
30		/** @const Tus Concatenation Extension */
31		const TUS_EXTENSION_CONCATENATION = 'concatenation';
32
33		/** @const 460 Checksum Mismatch */
34		const HTTP_CHECKSUM_MISMATCH = 460;
35
36		/** @var Request */
37		protected $request;
38
39		/** @var Response */
40		protected $response;
41
42		/** @var string */
43		protected $uploadDir;
44
45		/**
46		* TusServer constructor.
47		*
48		* @param Cacheable\|string $cacheAdapter
49		*/
50	3	public function __construct($cacheAdapter = 'file')
51		{
52	3	$this->request = new Request;
53	3	$this->response = new Response;
54	3	$this->uploadDir = dirname(__DIR__, 2) . DIRECTORY_SEPARATOR . 'uploads';
55
56	3	$this->setCache($cacheAdapter);
57	3	}
58
59		/**
60		* Set upload dir.
61		*
62		* @param string $path
63		*
64		* @return void
65		*/
66	1	public function setUploadDir(string $path)
67		{
68	1	$this->uploadDir = $path;
69	1	}
70
71		/**
72		* Get upload dir.
73		*
74		* @return string
75		*/
76	1	public function getUploadDir() : string
77		{
78	1	return $this->uploadDir;
79		}
80
81		/**
82		* Get request.
83		*
84		* @return Request
85		*/
86	1	public function getRequest() : Request
87		{
88	1	return $this->request;
89		}
90
91		/**
92		* Get request.
93		*
94		* @return Response
95		*/
96	1	public function getResponse() : Response
97		{
98	1	return $this->response;
99		}
100
101		/**
102		* Get file checksum.
103		*
104		* @param string $filePath
105		*
106		* @return string
107		*/
108		public function getChecksum(string $filePath)
109		{
110		return hash_file($this->getChecksumAlgorithm(), $filePath);
111		}
112
113		/**
114		* Get checksum algorithm.
115		*
116		* @return string\|null
117		*/
118		public function getChecksumAlgorithm()
119		{
120		$checksumHeader = $this->getRequest()->header('Upload-Checksum');
121
122		if (empty($checksumHeader)) {
123		return null;
124		}
125
126		list($checksumAlgorithm) = explode(' ', $checksumHeader);
127
128		return $checksumAlgorithm;
129		}
130
131		/**
132		* Handle all HTTP request.
133		*
134		* @return null\|HttpResponse
135		*/
136	2	public function serve()
137		{
138	2	$method = $this->getRequest()->method();
139
140	2	if ( ! in_array($method, $this->request->allowedHttpVerbs())) {
141	1	return $this->response->send(null, HttpResponse::HTTP_METHOD_NOT_ALLOWED);
142		}
143
144	1	$method = 'handle' . ucfirst(strtolower($method));
145
146	1	$this->{$method}();
147
148	1	$this->exit();
149	1	}
150
151		/**
152		* Exit from current php process.
153		*
154		* @codeCoverageIgnore
155		*/
156		protected function exit()
157		{
158		exit(0);
159		}
160
161		/**
162		* Handle OPTIONS request.
163		*
164		* @return HttpResponse
165		*/
166	1	protected function handleOptions() : HttpResponse
167		{
168	1	return $this->response->send(
169	1	null,
170	1	HttpResponse::HTTP_OK,
171		[
172	1	'Allow' => $this->request->allowedHttpVerbs(),
173	1	'Tus-Version' => self::TUS_PROTOCOL_VERSION,
174	1	'Tus-Extension' => implode(',', [
175	1	self::TUS_EXTENSION_CREATION,
176	1	self::TUS_EXTENSION_TERMINATION,
177	1	self::TUS_EXTENSION_CHECKSUM,
178	1	self::TUS_EXTENSION_EXPIRATION,
179	1	self::TUS_EXTENSION_CONCATENATION,
180		]),
181	1	'Tus-Checksum-Algorithm' => $this->getSupportedHashAlgorithms(),
182		]
183		);
184		}
185
186		/**
187		* Handle HEAD request.
188		*
189		* @return HttpResponse
190		*/
191	3	protected function handleHead() : HttpResponse
192		{
193	3	$checksum = $this->request->checksum();
194
195	3	if ( ! $this->cache->get($checksum)) {
196	1	return $this->response->send(null, HttpResponse::HTTP_NOT_FOUND);
197		}
198
199	2	$offset = $this->cache->get($checksum)['offset'] ?? false;
200
201	2	if (false === $offset) {
202	1	return $this->response->send(null, HttpResponse::HTTP_GONE);
203		}
204
205	1	return $this->response->send(null, HttpResponse::HTTP_OK, [
206	1	'Upload-Offset' => (int) $offset,
207	1	'Cache-Control' => 'no-store',
208	1	'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
209		]);
210		}
211
212		/**
213		* Handle POST request.
214		*
215		* @return HttpResponse
216		*/
217	2	protected function handlePost() : HttpResponse
218		{
219	2	$fileName = $this->getRequest()->extractFileName();
220
221	2	if (empty($fileName)) {
222	1	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
223		}
224
225	1	$checksum = $this->getUploadChecksum();
226	1	$filePath = $this->uploadDir . DIRECTORY_SEPARATOR . $fileName;
227
228	1	if ($this->getRequest()->isFinal()) {
229		return $this->handleConcatenation($fileName, $filePath);
230		}
231
232	1	if ($this->getRequest()->isPartial()) {
233		$filePath = $this->getPathForPartialUpload($checksum) . $fileName;
234		}
235
236	1	$location = $this->getRequest()->url() . '/' . basename($this->uploadDir) . '/' . $fileName;
237
238	1	$file = $this->buildFile([
239	1	'name' => $fileName,
240	1	'offset' => 0,
241	1	'size' => $this->getRequest()->header('Upload-Length'),
242	1	'file_path' => $filePath,
243	1	'location' => $location,
244	1	])->setChecksum($checksum);
245
246	1	$this->cache->set($checksum, $file->details());
247
248	1	return $this->response->send(
249	1	['data' => ['checksum' => $checksum]],
250	1	HttpResponse::HTTP_CREATED,
251		[
252	1	'Location' => $location,
253	1	'Upload-Expires' => $this->cache->get($checksum)['expires_at'],
254	1	'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
255		]
256		);
257		}
258
259		/**
260		* Handle file concatenation.
261		*
262		* @param string $fileName
263		* @param string $filePath
264		*
265		* @return HttpResponse
266		*/
267		protected function handleConcatenation(string $fileName, string $filePath) : HttpResponse
268		{
269		$files = [];
270		$partials = $this->getRequest()->extractPartials();
271		$location = $this->getRequest()->url() . '/' . basename($this->uploadDir) . '/' . $fileName;
272
273		foreach ($partials as $partial) {
274		$fileMeta = $this->getCache()->get($partial);
275
276		$files[] = $fileMeta['file_path'];
277		}
278
279		$file = (new File($fileName, $this->cache))->setFilePath($filePath);
280
281		$file->merge($files);
282
283		// Verify checksum.
284		$checksum = $this->getChecksum($filePath);
285
286		if ($checksum !== $this->getUploadChecksum()) {
287		return $this->response->send(null, self::HTTP_CHECKSUM_MISMATCH);
288		}
289
290		// Cleanup.
291		$file->delete($files, true);
292
293		return $this->response->send(
294		['data' => ['checksum' => $checksum]],
295		HttpResponse::HTTP_CREATED,
296		[
297		'Location' => $location,
298		'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
299		]
300		);
301		}
302
303		/**
304		* Handle PATCH request.
305		*
306		* @return HttpResponse
307		*/
308	6	protected function handlePatch() : HttpResponse
309		{
310	6	$checksum = $this->request->checksum();
311
312	6	if ( ! $this->cache->get($checksum)) {
313	1	return $this->response->send(null, HttpResponse::HTTP_GONE);
314		}
315
316	5	$meta = $this->cache->get($checksum);
317	5	$file = $this->buildFile($meta);
318
319		try {
320	5	$fileSize = $file->getFileSize();
321	5	$offset = $file->setChecksum($checksum)->upload($fileSize);
322
323		// If upload is done, verify checksum.
324	2	if ($offset === $fileSize && $checksum !== $this->getUploadChecksum()) {
325	2	return $this->response->send(null, self::HTTP_CHECKSUM_MISMATCH);
326		}
327	3	} catch (FileException $e) {
328	1	return $this->response->send($e->getMessage(), HttpResponse::HTTP_UNPROCESSABLE_ENTITY);
329	2	} catch (OutOfRangeException $e) {
330	1	return $this->response->send(null, HttpResponse::HTTP_REQUESTED_RANGE_NOT_SATISFIABLE);
331	1	} catch (ConnectionException $e) {
332	1	return $this->response->send(null, HttpResponse::HTTP_CONTINUE);
333		}
334
335	1	return $this->response->send(null, HttpResponse::HTTP_NO_CONTENT, [
336	1	'Upload-Expires' => $this->cache->get($checksum)['expires_at'],
337	1	'Upload-Offset' => $offset,
338	1	'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
339		]);
340		}
341
342		/**
343		* Handle GET request.
344		*
345		* @return BinaryFileResponse\|HttpResponse
346		*/
347	4	protected function handleGet()
348		{
349	4	$checksum = $this->request->checksum();
350
351	4	if (empty($checksum)) {
352	1	return $this->response->send('400 bad request.', HttpResponse::HTTP_BAD_REQUEST);
353		}
354
355	3	$fileMeta = $this->cache->get($checksum);
356
357	3	if ( ! $fileMeta) {
358	1	return $this->response->send('404 upload not found.', HttpResponse::HTTP_NOT_FOUND);
359		}
360
361	2	$resource = $fileMeta['file_path'] ?? null;
362	2	$fileName = $fileMeta['name'] ?? null;
363
364	2	if ( ! $resource \|\| ! file_exists($resource)) {
365	1	return $this->response->send('404 upload not found.', HttpResponse::HTTP_NOT_FOUND);
366		}
367
368	1	return $this->response->download($resource, $fileName);
369		}
370
371		/**
372		* Handle DELETE request.
373		*
374		* @return HttpResponse
375		*/
376	3	protected function handleDelete() : HttpResponse
377		{
378	3	$checksum = $this->request->checksum();
379	3	$fileMeta = $this->cache->get($checksum);
380	3	$resource = $fileMeta['file_path'] ?? null;
381
382	3	if ( ! $resource) {
383	1	return $this->response->send(null, HttpResponse::HTTP_NOT_FOUND);
384		}
385
386	2	$isDeleted = $this->cache->delete($checksum);
387
388	2	if ( ! $isDeleted \|\| ! file_exists($resource)) {
389	1	return $this->response->send(null, HttpResponse::HTTP_GONE);
390		}
391
392	1	unlink($resource);
393
394	1	return $this->response->send(null, HttpResponse::HTTP_NO_CONTENT, [
395	1	'Tus-Resumable' => self::TUS_PROTOCOL_VERSION,
396	1	'Tus-Extension' => self::TUS_EXTENSION_TERMINATION,
397		]);
398		}
399
400		/**
401		* Build file object.
402		*
403		* @param array $meta
404		*
405		* @return File
406		*/
407	1	protected function buildFile(array $meta) : File
408		{
409	1	return (new File($meta['name'], $this->cache))
410	1	->setMeta($meta['offset'], $meta['size'], $meta['file_path'], $meta['location']);
411		}
412
413		/**
414		* Get list of supported hash algorithms.
415		*
416		* @return string
417		*/
418	1	protected function getSupportedHashAlgorithms()
419		{
420	1	$supportedAlgorithms = hash_algos();
421
422	1	$algorithms = [];
423	1	foreach ($supportedAlgorithms as $hashAlgo) {
424	1	if (false !== strpos($hashAlgo, ',')) {
425	1	$algorithms[] = "'{$hashAlgo}'";
426		} else {
427	1	$algorithms[] = $hashAlgo;
428		}
429		}
430
431	1	return implode(',', $algorithms);
432		}
433
434		/**
435		* Verify and get upload checksum from header.
436		*
437		* @return string\|HttpResponse
438		*/
439	4	protected function getUploadChecksum()
440		{
441	4	$checksumHeader = $this->getRequest()->header('Upload-Checksum');
442
443	4	if (empty($checksumHeader)) {
444	1	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
445		}
446
447	3	list($checksumAlgorithm, $checksum) = explode(' ', $checksumHeader);
448
449	3	$checksum = base64_decode($checksum);
450
451	3	if ( ! in_array($checksumAlgorithm, hash_algos()) \|\| false === $checksum) {
452	2	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
453		}
454
455	1	return $checksum;
456		}
457
458		/**
459		* Get expired but incomplete uploads.
460		*
461		* @param array\|null $contents
462		*
463		* @return bool
464		*/
465	3	protected function isExpired($contents) : bool
466		{
467	3	$isExpired = empty($contents['expires_at']) \|\| Carbon::parse($contents['expires_at'])->lt(Carbon::now());
468
469	3	if ($isExpired && $contents['offset'] !== $contents['size']) {
470	3	return true;
471		}
472
473	2	return false;
474		}
475
476		/**
477		* Get path for partial upload.
478		*
479		* @param string $checksum
480		*
481		* @return string
482		*/
483		protected function getPathForPartialUpload(string $checksum) : string
484		{
485		list($actualChecksum) = explode(self::PARTIAL_UPLOAD_NAME_SEPARATOR, $checksum);
486
487		$path = $this->uploadDir . DIRECTORY_SEPARATOR . $actualChecksum . DIRECTORY_SEPARATOR;
488
489		if ( ! file_exists($path)) {
490		mkdir($path);
491		}
492
493		return $path;
494		}
495
496		/**
497		* Delete expired resources.
498		*
499		* @return array
500		*/
501	2	public function handleExpiration()
502		{
503	2	$deleted = [];
504	2	$cacheKeys = $this->cache->keys();
505
506	2	foreach ($cacheKeys as $key) {
507	2	$fileMeta = $this->cache->get($key, true);
508
509	2	if ( ! $this->isExpired($fileMeta)) {
510	1	continue;
511		}
512
513	2	$cacheDeleted = $this->cache->delete($key);
514
515	2	if ( ! $cacheDeleted) {
516	1	continue;
517		}
518
519	1	if (file_exists($fileMeta['file_path']) && is_writable($fileMeta['file_path'])) {
520	1	unlink($fileMeta['file_path']);
521		}
522
523	1	$deleted[] = $fileMeta;
524		}
525
526	2	return $deleted;
527		}
528
529		/**
530		* No other methods are allowed.
531		*
532		* @param string $method
533		* @param array $params
534		*
535		* @return HttpResponse\|BinaryFileResponse
536		*/
537	1	public function __call(string $method, array $params)
538		{
539	1	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
540		}
541		}
542

ankitpokhrel / tus-php

Pull Request — master (#11)

Server::getChecksum() A

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