Server::serve() - Code Metrics - Inspection of "Compatibility with uppy" - ankitpokhrel/tus-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#21)

by Ankit

created 2018-03-13 03:41 UTC

Server::serve() B

↳ Parent: Server

Complexity

Conditions	3
Paths	4

Size

Total Lines	29
Code Lines	17

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	17
CRAP Score	3

Importance

Changes

Metric	Value
cc	3
eloc	17
nc	4
nop	0
dl	0
loc	29
ccs	17
cts	17
cp	1
crap	3
rs	8.8571
c	0
b	0
f	0

<?php

namespace TusPhp\Tus;

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

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

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

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

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

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

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

    /** @const string Default checksum algorithm */
    const DEFAULT_CHECKSUM_ALGORITHM = 'sha256';

    /** @const int 24 hours access control max age header */
    const HEADER_ACCESS_CONTROL_MAX_AGE = 86400;

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

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

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

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

    /**
     * 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 getServerChecksum(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 self::DEFAULT_CHECKSUM_ALGORITHM;
        }

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

        return $checksumAlgorithm;
    }

    /**
     * Set upload key.
     *
     * @param string $key
     *
     * @return Server
     */
    public function setUploadKey(string $key) : self
    {
        $this->uploadKey = $key;

        return $this;
    }

    /**
     * Get upload key from header.
     *
     * @return string|HttpResponse
     */
    public function getUploadKey()
    {
        if ( ! empty($this->uploadKey)) {
            return $this->uploadKey;
        }

        $key = $this->getRequest()->header('Upload-Key') ?? Uuid::uuid4()->toString();

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

        $this->uploadKey = $key;

        return $this->uploadKey;
    }

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

        $globalHeaders = [
            'Access-Control-Allow-Origin' => $this->request->header('Origin'),
            'Access-Control-Allow-Methods' => implode(',', $allowedHttpVerbs),
            'Access-Control-Allow-Headers' => 'Origin, X-Requested-With, Content-Type, Content-Length, Upload-Key, Upload-Checksum, Upload-Length, Upload-Offset, Tus-Version, Tus-Resumable, Upload-Metadata',
            'Access-Control-Expose-Headers' => 'Upload-Key, Upload-Checksum, Upload-Length, Upload-Offset, Upload-Metadata, Tus-Version, Tus-Resumable, Tus-Extension, Location',
            'Access-Control-Max-Age' => self::HEADER_ACCESS_CONTROL_MAX_AGE,
            'X-Content-Type-Options' => 'nosniff',
        ];

        if (HttpRequest::METHOD_OPTIONS !== $requestMethod) {
            $globalHeaders['Tus-Resumable'] = self::TUS_PROTOCOL_VERSION;
        }

        $this->getResponse()->setHeaders($globalHeaders);

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

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

        $this->{$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' => implode(',', $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
    {
        $key = $this->request->key();

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

        $offset = $fileMeta['offset'] ?? false;

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

        return $this->response->send(null, HttpResponse::HTTP_OK, $this->getHeadersForHeadRequest($fileMeta));
    }

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

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

        $uploadKey = $this->getUploadKey();
        $filePath  = $this->uploadDir . DIRECTORY_SEPARATOR . $fileName;

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

        if ($this->getRequest()->isPartial()) {
            $filePath   = $this->getPathForPartialUpload($uploadKey) . $fileName;
            $uploadType = self::UPLOAD_TYPE_PARTIAL;
        }

        $checksum = $this->getClientChecksum();
        $location = $this->getRequest()->url() . $this->getApiPath() . '/' . $uploadKey;

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

        $this->cache->set($uploadKey, $file->details() + ['upload_type' => $uploadType]);

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

    /**
     * Handle file concatenation.
     *
     * @param string $fileName
     * @param string $filePath
     *
     * @return HttpResponse
     */
    protected function handleConcatenation(string $fileName, string $filePath) : HttpResponse
    {
        $partials  = $this->getRequest()->extractPartials();
        $uploadKey = $this->getUploadKey();
        $files     = $this->getPartialsMeta($partials);
        $filePaths = array_column($files, 'file_path');
        $location  = $this->getRequest()->url() . $this->getApiPath() . '/' . $uploadKey;

        $file = $this->buildFile([
            'name' => $fileName,
            'offset' => 0,
            'size' => 0,
            'file_path' => $filePath,
            'location' => $location,
        ])->setFilePath($filePath);

        $file->setOffset($file->merge($files));

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

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

        $this->cache->set($uploadKey, $file->details() + ['upload_type' => self::UPLOAD_TYPE_FINAL]);

        // Cleanup.
        if ($file->delete($filePaths, true)) {
            $this->cache->deleteAll($partials);
        }

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

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

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

        if (self::UPLOAD_TYPE_FINAL === $meta['upload_type']) {
            return $this->response->send(null, HttpResponse::HTTP_FORBIDDEN);
        }

        $file     = $this->buildFile($meta);
        $checksum = $meta['checksum'];

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

            // If upload is done, verify checksum.
            if ($offset === $fileSize && ! empty($checksum) && $checksum !== $this->getServerChecksum($meta['file_path'])) {
                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, [
            'Content-Type' => 'application/offset+octet-stream',
            'Upload-Expires' => $this->cache->get($uploadKey)['expires_at'],
            'Upload-Offset' => $offset,
        ]);
    }

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

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

        if ( ! $fileMeta = $this->cache->get($key)) {
            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
    {
        $key      = $this->request->key();
        $fileMeta = $this->cache->get($key);
        $resource = $fileMeta['file_path'] ?? null;

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

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

        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-Extension' => self::TUS_EXTENSION_TERMINATION,
        ]);
    }

    /**
     * Get required headers for head request.
     *
     * @param array $fileMeta
     *
     * @return array
     */
    protected function getHeadersForHeadRequest(array $fileMeta) : array
    {
        $headers = [
            'Upload-Length' => (int) $fileMeta['size'],
            'Upload-Offset' => (int) $fileMeta['offset'],
            'Cache-Control' => 'no-store',
        ];

        if (self::UPLOAD_TYPE_FINAL === $fileMeta['upload_type'] && $fileMeta['size'] !== $fileMeta['offset']) {
            unset($headers['Upload-Offset']);
        }

        if (self::UPLOAD_TYPE_NORMAL !== $fileMeta['upload_type']) {
            $headers += ['Upload-Concat' => $fileMeta['upload_type']];
        }

        return $headers;
    }

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

        if (array_key_exists('offset', $meta)) {
            $file->setMeta($meta['offset'], $meta['size'], $meta['file_path'], $meta['location']);
        }

        return $file;
    }

    /**
     * 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 getClientChecksum()
    {
        $checksumHeader = $this->getRequest()->header('Upload-Checksum');

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

        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 $key
     *
     * @return string
     */
    protected function getPathForPartialUpload(string $key) : string
    {
        list($actualKey) = explode(self::PARTIAL_UPLOAD_NAME_SEPARATOR, $key);

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

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

        return $path;
    }

    /**
     * Get metadata of partials.
     *
     * @param array $partials
     *
     * @return array
     */
    protected function getPartialsMeta(array $partials)
    {
        $files = [];

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

            $files[] = $fileMeta;
        }

        return $files;
    }

    /**
     * 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;
            }

            if ( ! $this->cache->delete($key)) {
                continue;
            }

            if (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 Ramsey\Uuid\Uuid;
10		use TusPhp\Cache\Cacheable;
11		use TusPhp\Exception\FileException;
12		use TusPhp\Exception\ConnectionException;
13		use TusPhp\Exception\OutOfRangeException;
14		use Illuminate\Http\Request as HttpRequest;
15		use Illuminate\Http\Response as HttpResponse;
16		use Symfony\Component\HttpFoundation\BinaryFileResponse;
17
18		class Server extends AbstractTus
19		{
20		/** @const string Tus Creation Extension */
21		const TUS_EXTENSION_CREATION = 'creation';
22
23		/** @const string Tus Termination Extension */
24		const TUS_EXTENSION_TERMINATION = 'termination';
25
26		/** @const string Tus Checksum Extension */
27		const TUS_EXTENSION_CHECKSUM = 'checksum';
28
29		/** @const string Tus Expiration Extension */
30		const TUS_EXTENSION_EXPIRATION = 'expiration';
31
32		/** @const string Tus Concatenation Extension */
33		const TUS_EXTENSION_CONCATENATION = 'concatenation';
34
35		/** @const int 460 Checksum Mismatch */
36		const HTTP_CHECKSUM_MISMATCH = 460;
37
38		/** @const string Default checksum algorithm */
39		const DEFAULT_CHECKSUM_ALGORITHM = 'sha256';
40
41		/** @const int 24 hours access control max age header */
42		const HEADER_ACCESS_CONTROL_MAX_AGE = 86400;
43
44		/** @var Request */
45		protected $request;
46
47		/** @var Response */
48		protected $response;
49
50		/** @var string */
51		protected $uploadDir;
52
53		/** @var string */
54		protected $uploadKey;
55
56		/**
57		* TusServer constructor.
58		*
59		* @param Cacheable\|string $cacheAdapter
60		*/
61	3	public function __construct($cacheAdapter = 'file')
62		{
63	3	$this->request = new Request;
64	3	$this->response = new Response;
65	3	$this->uploadDir = dirname(__DIR__, 2) . DIRECTORY_SEPARATOR . 'uploads';
66
67	3	$this->setCache($cacheAdapter);
68	3	}
69
70		/**
71		* Set upload dir.
72		*
73		* @param string $path
74		*
75		* @return void
76		*/
77	2	public function setUploadDir(string $path)
78		{
79	2	$this->uploadDir = $path;
80	2	}
81
82		/**
83		* Get upload dir.
84		*
85		* @return string
86		*/
87	1	public function getUploadDir() : string
88		{
89	1	return $this->uploadDir;
90		}
91
92		/**
93		* Get request.
94		*
95		* @return Request
96		*/
97	1	public function getRequest() : Request
98		{
99	1	return $this->request;
100		}
101
102		/**
103		* Get request.
104		*
105		* @return Response
106		*/
107	1	public function getResponse() : Response
108		{
109	1	return $this->response;
110		}
111
112		/**
113		* Get file checksum.
114		*
115		* @param string $filePath
116		*
117		* @return string
118		*/
119	1	public function getServerChecksum(string $filePath)
120		{
121	1	return hash_file($this->getChecksumAlgorithm(), $filePath);
122		}
123
124		/**
125		* Get checksum algorithm.
126		*
127		* @return string\|null
128		*/
129	1	public function getChecksumAlgorithm()
130		{
131	1	$checksumHeader = $this->getRequest()->header('Upload-Checksum');
132
133	1	if (empty($checksumHeader)) {
134	1	return self::DEFAULT_CHECKSUM_ALGORITHM;
135		}
136
137	1	list($checksumAlgorithm) = explode(' ', $checksumHeader);
138
139	1	return $checksumAlgorithm;
140		}
141
142		/**
143		* Set upload key.
144		*
145		* @param string $key
146		*
147		* @return Server
148		*/
149	1	public function setUploadKey(string $key) : self
150		{
151	1	$this->uploadKey = $key;
152
153	1	return $this;
154		}
155
156		/**
157		* Get upload key from header.
158		*
159		* @return string\|HttpResponse
160		*/
161	4	public function getUploadKey()
162		{
163	4	if ( ! empty($this->uploadKey)) {
164	1	return $this->uploadKey;
165		}
166
167	3	$key = $this->getRequest()->header('Upload-Key') ?? Uuid::uuid4()->toString();
168
169	3	if (empty($key)) {
170	1	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
171		}
172
173	2	$this->uploadKey = $key;
174
175	2	return $this->uploadKey;
176		}
177
178		/**
179		* Handle all HTTP request.
180		*
181		* @return null\|HttpResponse
182		*/
183	2	public function serve()
184		{
185	2	$requestMethod = $this->getRequest()->method();
186	2	$allowedHttpVerbs = $this->getRequest()->allowedHttpVerbs();
187
188		$globalHeaders = [
189	2	'Access-Control-Allow-Origin' => $this->request->header('Origin'),
190	2	'Access-Control-Allow-Methods' => implode(',', $allowedHttpVerbs),
191	2	'Access-Control-Allow-Headers' => 'Origin, X-Requested-With, Content-Type, Content-Length, Upload-Key, Upload-Checksum, Upload-Length, Upload-Offset, Tus-Version, Tus-Resumable, Upload-Metadata',
192	2	'Access-Control-Expose-Headers' => 'Upload-Key, Upload-Checksum, Upload-Length, Upload-Offset, Upload-Metadata, Tus-Version, Tus-Resumable, Tus-Extension, Location',
193	2	'Access-Control-Max-Age' => self::HEADER_ACCESS_CONTROL_MAX_AGE,
194	2	'X-Content-Type-Options' => 'nosniff',
195		];
196
197	2	if (HttpRequest::METHOD_OPTIONS !== $requestMethod) {
198	2	$globalHeaders['Tus-Resumable'] = self::TUS_PROTOCOL_VERSION;
199		}
200
201	2	$this->getResponse()->setHeaders($globalHeaders);
202
203	2	if ( ! in_array($requestMethod, $allowedHttpVerbs)) {
204	1	return $this->response->send(null, HttpResponse::HTTP_METHOD_NOT_ALLOWED);
205		}
206
207	1	$method = 'handle' . ucfirst(strtolower($requestMethod));
208
209	1	$this->{$method}();
210
211	1	$this->exit();
212	1	}
213
214		/**
215		* Exit from current php process.
216		*
217		* @codeCoverageIgnore
218		*/
219		protected function exit()
220		{
221		exit(0);
222		}
223
224		/**
225		* Handle OPTIONS request.
226		*
227		* @return HttpResponse
228		*/
229	1	protected function handleOptions() : HttpResponse
230		{
231	1	return $this->response->send(
232	1	null,
233	1	HttpResponse::HTTP_OK,
234		[
235	1	'Allow' => implode(',', $this->request->allowedHttpVerbs()),
236	1	'Tus-Version' => self::TUS_PROTOCOL_VERSION,
237	1	'Tus-Extension' => implode(',', [
238	1	self::TUS_EXTENSION_CREATION,
239	1	self::TUS_EXTENSION_TERMINATION,
240	1	self::TUS_EXTENSION_CHECKSUM,
241	1	self::TUS_EXTENSION_EXPIRATION,
242	1	self::TUS_EXTENSION_CONCATENATION,
243		]),
244	1	'Tus-Checksum-Algorithm' => $this->getSupportedHashAlgorithms(),
245		]
246		);
247		}
248
249		/**
250		* Handle HEAD request.
251		*
252		* @return HttpResponse
253		*/
254	5	protected function handleHead() : HttpResponse
255		{
256	5	$key = $this->request->key();
257
258	5	if ( ! $fileMeta = $this->cache->get($key)) {
259	1	return $this->response->send(null, HttpResponse::HTTP_NOT_FOUND);
260		}
261
262	4	$offset = $fileMeta['offset'] ?? false;
263
264	4	if (false === $offset) {
265	1	return $this->response->send(null, HttpResponse::HTTP_GONE);
266		}
267
268	3	return $this->response->send(null, HttpResponse::HTTP_OK, $this->getHeadersForHeadRequest($fileMeta));
269		}
270
271		/**
272		* Handle POST request.
273		*
274		* @return HttpResponse
275		*/
276	4	protected function handlePost() : HttpResponse
277		{
278	4	$fileName = $this->getRequest()->extractFileName();
279	4	$uploadType = self::UPLOAD_TYPE_NORMAL;
280
281	4	if (empty($fileName)) {
282	1	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
283		}
284
285	3	$uploadKey = $this->getUploadKey();
286	3	$filePath = $this->uploadDir . DIRECTORY_SEPARATOR . $fileName;
287
288	3	if ($this->getRequest()->isFinal()) {
289	1	return $this->handleConcatenation($fileName, $filePath);
290		}
291
292	2	if ($this->getRequest()->isPartial()) {
293	1	$filePath = $this->getPathForPartialUpload($uploadKey) . $fileName;
294	1	$uploadType = self::UPLOAD_TYPE_PARTIAL;
295		}
296
297	2	$checksum = $this->getClientChecksum();
298	2	$location = $this->getRequest()->url() . $this->getApiPath() . '/' . $uploadKey;
299
300	2	$file = $this->buildFile([
301	2	'name' => $fileName,
302	2	'offset' => 0,
303	2	'size' => $this->getRequest()->header('Upload-Length'),
304	2	'file_path' => $filePath,
305	2	'location' => $location,
306	2	])->setChecksum($checksum);
307
308	2	$this->cache->set($uploadKey, $file->details() + ['upload_type' => $uploadType]);
309
310	2	return $this->response->send(
311	2	['data' => ['checksum' => $checksum]],
312	2	HttpResponse::HTTP_CREATED,
313		[
314	2	'Location' => $location,
315	2	'Upload-Expires' => $this->cache->get($uploadKey)['expires_at'],
316		]
317		);
318		}
319
320		/**
321		* Handle file concatenation.
322		*
323		* @param string $fileName
324		* @param string $filePath
325		*
326		* @return HttpResponse
327		*/
328	2	protected function handleConcatenation(string $fileName, string $filePath) : HttpResponse
329		{
330	2	$partials = $this->getRequest()->extractPartials();
331	2	$uploadKey = $this->getUploadKey();
332	2	$files = $this->getPartialsMeta($partials);
333	2	$filePaths = array_column($files, 'file_path');
334	2	$location = $this->getRequest()->url() . $this->getApiPath() . '/' . $uploadKey;
335
336	2	$file = $this->buildFile([
337	2	'name' => $fileName,
338	2	'offset' => 0,
339	2	'size' => 0,
340	2	'file_path' => $filePath,
341	2	'location' => $location,
342	2	])->setFilePath($filePath);
343
344	2	$file->setOffset($file->merge($files));
345
346		// Verify checksum.
347	2	$checksum = $this->getServerChecksum($filePath);
348
349	2	if ($checksum !== $this->getClientChecksum()) {
350	1	return $this->response->send(null, self::HTTP_CHECKSUM_MISMATCH);
351		}
352
353	1	$this->cache->set($uploadKey, $file->details() + ['upload_type' => self::UPLOAD_TYPE_FINAL]);
354
355		// Cleanup.
356	1	if ($file->delete($filePaths, true)) {
357	1	$this->cache->deleteAll($partials);
358		}
359
360	1	return $this->response->send(
361	1	['data' => ['checksum' => $checksum]],
362	1	HttpResponse::HTTP_CREATED,
363		[
364	1	'Location' => $location,
365		]
366		);
367		}
368
369		/**
370		* Handle PATCH request.
371		*
372		* @return HttpResponse
373		*/
374	7	protected function handlePatch() : HttpResponse
375		{
376	7	$uploadKey = $this->request->key();
377
378	7	if ( ! $meta = $this->cache->get($uploadKey)) {
379	1	return $this->response->send(null, HttpResponse::HTTP_GONE);
380		}
381
382	6	if (self::UPLOAD_TYPE_FINAL === $meta['upload_type']) {
383	1	return $this->response->send(null, HttpResponse::HTTP_FORBIDDEN);
384		}
385
386	5	$file = $this->buildFile($meta);
387	5	$checksum = $meta['checksum'];
388
389		try {
390	5	$fileSize = $file->getFileSize();
391	5	$offset = $file->setKey($uploadKey)->setChecksum($checksum)->upload($fileSize);
392
393		// If upload is done, verify checksum.
394	2	if ($offset === $fileSize && ! empty($checksum) && $checksum !== $this->getServerChecksum($meta['file_path'])) {
395	2	return $this->response->send(null, self::HTTP_CHECKSUM_MISMATCH);
396		}
397	3	} catch (FileException $e) {
398	1	return $this->response->send($e->getMessage(), HttpResponse::HTTP_UNPROCESSABLE_ENTITY);
399	2	} catch (OutOfRangeException $e) {
400	1	return $this->response->send(null, HttpResponse::HTTP_REQUESTED_RANGE_NOT_SATISFIABLE);
401	1	} catch (ConnectionException $e) {
402	1	return $this->response->send(null, HttpResponse::HTTP_CONTINUE);
403		}
404
405	1	return $this->response->send(null, HttpResponse::HTTP_NO_CONTENT, [
406	1	'Content-Type' => 'application/offset+octet-stream',
407	1	'Upload-Expires' => $this->cache->get($uploadKey)['expires_at'],
408	1	'Upload-Offset' => $offset,
409		]);
410		}
411
412		/**
413		* Handle GET request.
414		*
415		* @return BinaryFileResponse\|HttpResponse
416		*/
417	4	protected function handleGet()
418		{
419	4	$key = $this->request->key();
420
421	4	if (empty($key)) {
422	1	return $this->response->send('400 bad request.', HttpResponse::HTTP_BAD_REQUEST);
423		}
424
425	3	if ( ! $fileMeta = $this->cache->get($key)) {
426	1	return $this->response->send('404 upload not found.', HttpResponse::HTTP_NOT_FOUND);
427		}
428
429	2	$resource = $fileMeta['file_path'] ?? null;
430	2	$fileName = $fileMeta['name'] ?? null;
431
432	2	if ( ! $resource \|\| ! file_exists($resource)) {
433	1	return $this->response->send('404 upload not found.', HttpResponse::HTTP_NOT_FOUND);
434		}
435
436	1	return $this->response->download($resource, $fileName);
437		}
438
439		/**
440		* Handle DELETE request.
441		*
442		* @return HttpResponse
443		*/
444	3	protected function handleDelete() : HttpResponse
445		{
446	3	$key = $this->request->key();
447	3	$fileMeta = $this->cache->get($key);
448	3	$resource = $fileMeta['file_path'] ?? null;
449
450	3	if ( ! $resource) {
451	1	return $this->response->send(null, HttpResponse::HTTP_NOT_FOUND);
452		}
453
454	2	$isDeleted = $this->cache->delete($key);
455
456	2	if ( ! $isDeleted \|\| ! file_exists($resource)) {
457	1	return $this->response->send(null, HttpResponse::HTTP_GONE);
458		}
459
460	1	unlink($resource);
461
462	1	return $this->response->send(null, HttpResponse::HTTP_NO_CONTENT, [
463	1	'Tus-Extension' => self::TUS_EXTENSION_TERMINATION,
464		]);
465		}
466
467		/**
468		* Get required headers for head request.
469		*
470		* @param array $fileMeta
471		*
472		* @return array
473		*/
474	4	protected function getHeadersForHeadRequest(array $fileMeta) : array
475		{
476		$headers = [
477	4	'Upload-Length' => (int) $fileMeta['size'],
478	4	'Upload-Offset' => (int) $fileMeta['offset'],
479	4	'Cache-Control' => 'no-store',
480		];
481
482	4	if (self::UPLOAD_TYPE_FINAL === $fileMeta['upload_type'] && $fileMeta['size'] !== $fileMeta['offset']) {
483	2	unset($headers['Upload-Offset']);
484		}
485
486	4	if (self::UPLOAD_TYPE_NORMAL !== $fileMeta['upload_type']) {
487	3	$headers += ['Upload-Concat' => $fileMeta['upload_type']];
488		}
489
490	4	return $headers;
491		}
492
493		/**
494		* Build file object.
495		*
496		* @param array $meta
497		*
498		* @return File
499		*/
500	1	protected function buildFile(array $meta) : File
501		{
502	1	$file = new File($meta['name'], $this->cache);
503
504	1	if (array_key_exists('offset', $meta)) {
505	1	$file->setMeta($meta['offset'], $meta['size'], $meta['file_path'], $meta['location']);
506		}
507
508	1	return $file;
509		}
510
511		/**
512		* Get list of supported hash algorithms.
513		*
514		* @return string
515		*/
516	1	protected function getSupportedHashAlgorithms()
517		{
518	1	$supportedAlgorithms = hash_algos();
519
520	1	$algorithms = [];
521	1	foreach ($supportedAlgorithms as $hashAlgo) {
522	1	if (false !== strpos($hashAlgo, ',')) {
523	1	$algorithms[] = "'{$hashAlgo}'";
524		} else {
525	1	$algorithms[] = $hashAlgo;
526		}
527		}
528
529	1	return implode(',', $algorithms);
530		}
531
532		/**
533		* Verify and get upload checksum from header.
534		*
535		* @return string\|HttpResponse
536		*/
537	4	protected function getClientChecksum()
538		{
539	4	$checksumHeader = $this->getRequest()->header('Upload-Checksum');
540
541	4	if (empty($checksumHeader)) {
542	1	return '';
543		}
544
545	3	list($checksumAlgorithm, $checksum) = explode(' ', $checksumHeader);
546
547	3	$checksum = base64_decode($checksum);
548
549	3	if ( ! in_array($checksumAlgorithm, hash_algos()) \|\| false === $checksum) {
550	2	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
551		}
552
553	1	return $checksum;
554		}
555
556		/**
557		* Get expired but incomplete uploads.
558		*
559		* @param array\|null $contents
560		*
561		* @return bool
562		*/
563	3	protected function isExpired($contents) : bool
564		{
565	3	$isExpired = empty($contents['expires_at']) \|\| Carbon::parse($contents['expires_at'])->lt(Carbon::now());
566
567	3	if ($isExpired && $contents['offset'] !== $contents['size']) {
568	3	return true;
569		}
570
571	2	return false;
572		}
573
574		/**
575		* Get path for partial upload.
576		*
577		* @param string $key
578		*
579		* @return string
580		*/
581	1	protected function getPathForPartialUpload(string $key) : string
582		{
583	1	list($actualKey) = explode(self::PARTIAL_UPLOAD_NAME_SEPARATOR, $key);
584
585	1	$path = $this->uploadDir . DIRECTORY_SEPARATOR . $actualKey . DIRECTORY_SEPARATOR;
586
587	1	if ( ! file_exists($path)) {
588	1	mkdir($path);
589		}
590
591	1	return $path;
592		}
593
594		/**
595		* Get metadata of partials.
596		*
597		* @param array $partials
598		*
599		* @return array
600		*/
601	3	protected function getPartialsMeta(array $partials)
602		{
603	3	$files = [];
604
605	3	foreach ($partials as $partial) {
606	3	$fileMeta = $this->getCache()->get($partial);
607
608	3	$files[] = $fileMeta;
609		}
610
611	3	return $files;
612		}
613
614		/**
615		* Delete expired resources.
616		*
617		* @return array
618		*/
619	2	public function handleExpiration()
620		{
621	2	$deleted = [];
622	2	$cacheKeys = $this->cache->keys();
623
624	2	foreach ($cacheKeys as $key) {
625	2	$fileMeta = $this->cache->get($key, true);
626
627	2	if ( ! $this->isExpired($fileMeta)) {
628	1	continue;
629		}
630
631	2	if ( ! $this->cache->delete($key)) {
632	1	continue;
633		}
634
635	1	if (is_writable($fileMeta['file_path'])) {
636	1	unlink($fileMeta['file_path']);
637		}
638
639	1	$deleted[] = $fileMeta;
640		}
641
642	2	return $deleted;
643		}
644
645		/**
646		* No other methods are allowed.
647		*
648		* @param string $method
649		* @param array $params
650		*
651		* @return HttpResponse\|BinaryFileResponse
652		*/
653	1	public function __call(string $method, array $params)
654		{
655	1	return $this->response->send(null, HttpResponse::HTTP_BAD_REQUEST);
656		}
657		}
658

ankitpokhrel / tus-php

Pull Request — master (#21)

Server::serve() B

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