Client::isExpiredToken() - Code Metrics - Inspection of "[WIP] Version 3" - traderinteractive/tol-api-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#42)

by Chad

created 2018-02-28 20:29 UTC

Client::isExpiredToken() C

↳ Parent: Client

Complexity

Conditions	7
Paths	11

Size

Total Lines	27
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	27
c	0
b	0
f	0
rs	6.7272
cc	7
eloc	14
nc	11
nop	1

<?php

namespace TraderInteractive\Api;

use Chadicus\Psr\SimpleCache\NullCache;
use DominionEnterprises\Util;
use DominionEnterprises\Util\Arrays;
use DominionEnterprises\Util\Http;
use Psr\SimpleCache\CacheInterface;

/**
 * Client for apis
 */
final class Client implements ClientInterface
{
    /**
     * Flag to cache no requests
     *
     * @const int
     */
    const CACHE_MODE_NONE = 0;

    /**
     * Flag to cache only GET requests
     *
     * @const int
     */
    const CACHE_MODE_GET = 1;

    /**
     * Flag to cache only TOKEN requests
     *
     * @const int
     */
    const CACHE_MODE_TOKEN = 2;

    /**
     * Flag to cache ALL requests
     *
     * @const int
     */
    const CACHE_MODE_ALL = 3;

    /**
     * Flag to refresh cache on ALL requests
     *
     * @const int
     */
    const CACHE_MODE_REFRESH = 4;

    /**
     * @var array
     */
    const CACHE_MODES = [
        self::CACHE_MODE_NONE,
        self::CACHE_MODE_GET,
        self::CACHE_MODE_TOKEN,
        self::CACHE_MODE_ALL,
        self::CACHE_MODE_REFRESH,
    ];

    /**
     * Base url of the API server
     *
     * @var string
     */
    private $baseUrl;

    /**
     * HTTP Adapter for sending request to the api
     *
     * @var Adapter
     */
    private $adapter;

    /**
     * Oauth authentication implementation
     *
     * @var Authentication
     */
    private $authentication;

    /**
     * API access token
     *
     * @var string
     */
    private $accessToken;

    /**
     * API refresh token
     *
     * @var string
     */
    private $refreshToken;

    /**
     * Storage for cached API responses
     *
     * @var Cache
     */
    private $cache;

    /**
     * Strategy for caching
     *
     * @var int
     */
    private $cacheMode;

    /**
     * Handles set in start()
     *
     * @var array like [opaqueKey => [cached response (Response), adapter handle (opaque), Request]]
     */
    private $handles = [];

    /**
     * Array of headers that are passed on every request unless they are overridden
     *
     * @var array
     */
    private $defaultHeaders = [];

    /**
     * Create a new instance of Client
     *
     * @param Adapter $adapter
     * @param Authentication $authentication
     * @param string $baseUrl
     * @param int $cacheMode
     * @param Cache $cache
     * @param string $accessToken
     * @param string $refreshToken
     *
     * @throws \InvalidArgumentException Thrown if $baseUrl is not a non-empty string
     * @throws \InvalidArgumentException Thrown if $cacheMode is not one of the cache mode constants
     */
    public function __construct(
        Adapter $adapter,
        Authentication $authentication,
        $baseUrl,
        $cacheMode = self::CACHE_MODE_NONE,
        CacheInterface $cache = null,
        $accessToken = null,
        $refreshToken = null
    ) {
        Util::throwIfNotType(['string' => [$baseUrl]], true);
        Util::throwIfNotType(['string' => [$accessToken, $refreshToken]], true, true);
        Util::ensure(
            true,
            in_array($cacheMode, self::CACHE_MODES, true),
            '\InvalidArgumentException',
            ['$cacheMode must be a valid cache mode constant']
        );

        $this->adapter = $adapter;
        $this->baseUrl = $baseUrl;
        $this->authentication = $authentication;
        $this->cache = $cache ?? new NullCache();

        $this->cacheMode = $cacheMode;
        $this->accessToken = $accessToken;
        $this->refreshToken = $refreshToken;
    }

    /**
     * Get access token and refresh token
     *
     * @return array two string values, access token and refresh token
     */
    public function getTokens()
    {
        return [$this->accessToken, $this->refreshToken];
    }

    /**
     * Search the API resource using the specified $filters
     *
     * @param string $resource
     * @param array $filters
     *
     * @return mixed opaque handle to be given to endIndex()
     */
    public function startIndex($resource, array $filters = [])
    {
        Util::throwIfNotType(['string' => [$resource]], true);
        $url = "{$this->baseUrl}/" . urlencode($resource) . '?' . Http::buildQueryString($filters);
        return $this->start($url, 'GET');
    }

    /**
     * @see startIndex()
     */
    public function index($resource, array $filters = [])
    {
        return $this->end($this->startIndex($resource, $filters));
    }

    /**
     * Get the details of an API resource based on $id
     *
     * @param string $resource
     * @param string $id
     * @param array  $parameters
     *
     * @return mixed opaque handle to be given to endGet()
     */
    public function startGet($resource, $id, array $parameters = [])
    {
        Util::throwIfNotType(['string' => [$resource, $id]], true);
        $url = "{$this->baseUrl}/" . urlencode($resource) . '/' . urlencode($id);
        if (!empty($parameters)) {
            $url .= '?' . Http::buildQueryString($parameters);
        }

        return $this->start($url, 'GET');
    }

    /**
     * @see startGet()
     */
    public function get($resource, $id, array $parameters = [])
    {
        return $this->end($this->startGet($resource, $id, $parameters));
    }

    /**
     * Create a new instance of an API resource using the provided $data
     *
     * @param string $resource
     * @param array $data
     *
     * @return mixed opaque handle to be given to endPost()
     */
    public function startPost($resource, array $data)
    {
        Util::throwIfNotType(['string' => [$resource]], true);
        $url = "{$this->baseUrl}/" . urlencode($resource);
        return $this->start($url, 'POST', json_encode($data), ['Content-Type' => 'application/json']);
    }

    /**
     * @see startPost()
     */
    public function post($resource, array $data)
    {
        return $this->end($this->startPost($resource, $data));
    }

    /**
     * Update an existing instance of an API resource specified by $id with the provided $data
     *
     * @param string $resource
     * @param string $id
     * @param array $data
     *
     * @return mixed opaque handle to be given to endPut()
     */
    public function startPut($resource, $id, array $data)
    {
        Util::throwIfNotType(['string' => [$resource, $id]], true);
        $url = "{$this->baseUrl}/" . urlencode($resource) . '/' . urlencode($id);
        return $this->start($url, 'PUT', json_encode($data), ['Content-Type' => 'application/json']);
    }

    /**
     * @see startPut()
     */
    public function put($resource, $id, array $data)
    {
        return $this->end($this->startPut($resource, $id, $data));
    }

    /**
     * Delete an existing instance of an API resource specified by $id
     *
     * @param string $resource
     * @param string $id
     * @param array $data
     *
     * @return mixed opaque handle to be given to endDelete()
     */
    public function startDelete($resource, $id = null, array $data = null)
    {
        Util::throwIfNotType(['string' => [$resource]], true);
        $url = "{$this->baseUrl}/" . urlencode($resource);
        if ($id !== null) {
            Util::throwIfNotType(['string' => [$id]], true);
            $url .= '/' . urlencode($id);
        }

        $json = $data !== null ? json_encode($data) : null;
        return $this->start($url, 'DELETE', $json, ['Content-Type' => 'application/json']);
    }

    /**
     * @see startDelete()
     */
    public function delete($resource, $id = null, array $data = null)
    {
        return $this->end($this->startDelete($resource, $id, $data));
    }

    /**
     * Get response of start*() method
     *
     * @param mixed $handle opaque handle from start*()
     *
     * @return Response
     */
    public function end($handle)
    {
        Util::ensure(
            true,
            array_key_exists($handle, $this->handles),
            '\InvalidArgumentException',
            ['$handle not found']
        );

        list($cachedResponse, $adapterHandle, $request) = $this->handles[$handle];
        unset($this->handles[$handle]);

        if ($cachedResponse !== null) {
            return $cachedResponse;
        }

        $response = $this->adapter->end($adapterHandle);

        if (self::isExpiredToken($response)) {
            $this->refreshAccessToken();
            $headers = $request->getHeaders();
            $headers['Authorization'] = "Bearer {$this->accessToken}";
            $request = new Request($request->getUrl(), $request->getMethod(), $request->getBody(), $headers);
            $response = $this->adapter->end($this->adapter->start($request));
        }

        if (($this->cacheMode === self::CACHE_MODE_REFRESH

                || $this->cacheMode & self::CACHE_MODE_GET)
                && $request->getMethod() === 'GET') {
            $this->cache->set($this->getCacheKey($request), $response);
        }

        return $response;
    }

    /**
     * Set the default headers
     *
     * @param array The default headers
     *
     * @return void
     */
    public function setDefaultHeaders($defaultHeaders)
    {
        $this->defaultHeaders = $defaultHeaders;
    }

    private static function isExpiredToken(Response $response)
    {
        if ($response->getHttpCode() !== 401) {
            return false;
        }

        $parsedJson = $response->getResponse();
        $error = Arrays::get($parsedJson, 'error');

        if (is_array($error)) {
            $error = Arrays::get($error, 'code');
        }

        //This detects expired access tokens on Apigee
        if ($error !== null) {
            return $error === 'invalid_grant' || $error === 'invalid_token';
        }

        $fault = Arrays::get($parsedJson, 'fault');
        if ($fault === null) {
            return false;
        }

        $error = strtolower(Arrays::get($fault, 'faultstring', ''));

        return $error === 'invalid access token' || $error === 'access token expired';
    }

    /**
     * Obtains a new access token from the API
     *
     * @return void
     */
    private function refreshAccessToken()
    {
        $request = $this->authentication->getTokenRequest($this->baseUrl, $this->refreshToken);
        $response = $this->adapter->end($this->adapter->start($request));

        list($this->accessToken, $this->refreshToken, $expires) = Authentication::parseTokenResponse($response);

        if ($this->cache === self::CACHE_MODE_REFRESH || $this->cacheMode & self::CACHE_MODE_TOKEN) {

            $this->cache->set($this->getCacheKey($request), $response, $expires);
            return;
        }
    }

    /**
     * Helper method to set this clients access token from cache
     *
     * @return void
     */
    private function setTokenFromCache()
    {
        if (($this->cacheMode & self::CACHE_MODE_TOKEN) === 0) {
            return;
        }

        $cachedResponse = $this->cache->get(
            $this->getCacheKey($this->authentication->getTokenRequest($this->baseUrl, $this->refreshToken))
        );
        if ($cachedResponse === null) {
            return;
        }

        list($this->accessToken, $this->refreshToken, ) = Authentication::parseTokenResponse($cachedResponse);
    }

    /**
     * Calls adapter->start() using caches
     *
     * @param string $url
     * @param string $method
     * @param string|null $body
     * @param array $headers Authorization key will be overwritten with the bearer token, and Accept-Encoding wil be
     *                       overwritten with gzip.
     *
     * @return mixed opaque handle to be given to end()
     */
    private function start($url, $method, $body = null, array $headers = [])
    {
        $headers += $this->defaultHeaders;
        $headers['Accept-Encoding'] = 'gzip';
        if ($this->accessToken === null) {
            $this->setTokenFromCache();
        }

        if ($this->accessToken === null) {
            $this->refreshAccessToken();
        }

        $headers['Authorization'] = "Bearer {$this->accessToken}";

        $request = new Request($url, $method, $body, $headers);

        if ($request->getMethod() === 'GET' && $this->cacheMode & self::CACHE_MODE_GET) {
            $cached = $this->cache->get($this->getCacheKey($request));
            if ($cached !== null) {
                //The response is cache. Generate a key for the handles array
                $key = uniqid();
                $this->handles[$key] = [$cached, null, $request];
                return $key;
            }
        }

        $key = $this->adapter->start($request);
        $this->handles[$key] = [null, $key, $request];
        return $key;
    }

    private function getCacheKey(Request $request) : string
    {
        return CacheHelper::getCacheKey($request);
    }
}


1		<?php
2
3		namespace TraderInteractive\Api;
4
5		use Chadicus\Psr\SimpleCache\NullCache;
6		use DominionEnterprises\Util;
7		use DominionEnterprises\Util\Arrays;
8		use DominionEnterprises\Util\Http;
9		use Psr\SimpleCache\CacheInterface;
10
11		/**
12		* Client for apis
13		*/
14		final class Client implements ClientInterface
15		{
16		/**
17		* Flag to cache no requests
18		*
19		* @const int
20		*/
21		const CACHE_MODE_NONE = 0;
22
23		/**
24		* Flag to cache only GET requests
25		*
26		* @const int
27		*/
28		const CACHE_MODE_GET = 1;
29
30		/**
31		* Flag to cache only TOKEN requests
32		*
33		* @const int
34		*/
35		const CACHE_MODE_TOKEN = 2;
36
37		/**
38		* Flag to cache ALL requests
39		*
40		* @const int
41		*/
42		const CACHE_MODE_ALL = 3;
43
44		/**
45		* Flag to refresh cache on ALL requests
46		*
47		* @const int
48		*/
49		const CACHE_MODE_REFRESH = 4;
50
51		/**
52		* @var array
53		*/
54		const CACHE_MODES = [
55		self::CACHE_MODE_NONE,
56		self::CACHE_MODE_GET,
57		self::CACHE_MODE_TOKEN,
58		self::CACHE_MODE_ALL,
59		self::CACHE_MODE_REFRESH,
60		];
61
62		/**
63		* Base url of the API server
64		*
65		* @var string
66		*/
67		private $baseUrl;
68
69		/**
70		* HTTP Adapter for sending request to the api
71		*
72		* @var Adapter
73		*/
74		private $adapter;
75
76		/**
77		* Oauth authentication implementation
78		*
79		* @var Authentication
80		*/
81		private $authentication;
82
83		/**
84		* API access token
85		*
86		* @var string
87		*/
88		private $accessToken;
89
90		/**
91		* API refresh token
92		*
93		* @var string
94		*/
95		private $refreshToken;
96
97		/**
98		* Storage for cached API responses
99		*
100		* @var Cache
101		*/
102		private $cache;
103
104		/**
105		* Strategy for caching
106		*
107		* @var int
108		*/
109		private $cacheMode;
110
111		/**
112		* Handles set in start()
113		*
114		* @var array like [opaqueKey => [cached response (Response), adapter handle (opaque), Request]]
115		*/
116		private $handles = [];
117
118		/**
119		* Array of headers that are passed on every request unless they are overridden
120		*
121		* @var array
122		*/
123		private $defaultHeaders = [];
124
125		/**
126		* Create a new instance of Client
127		*
128		* @param Adapter $adapter
129		* @param Authentication $authentication
130		* @param string $baseUrl
131		* @param int $cacheMode
132		* @param Cache $cache
133		* @param string $accessToken
134		* @param string $refreshToken
135		*
136		* @throws \InvalidArgumentException Thrown if $baseUrl is not a non-empty string
137		* @throws \InvalidArgumentException Thrown if $cacheMode is not one of the cache mode constants
138		*/
139		public function __construct(
140		Adapter $adapter,
141		Authentication $authentication,
142		$baseUrl,
143		$cacheMode = self::CACHE_MODE_NONE,
144		CacheInterface $cache = null,
145		$accessToken = null,
146		$refreshToken = null
147		) {
148		Util::throwIfNotType(['string' => [$baseUrl]], true);
149		Util::throwIfNotType(['string' => [$accessToken, $refreshToken]], true, true);
150		Util::ensure(
151		true,
152		in_array($cacheMode, self::CACHE_MODES, true),
153		'\InvalidArgumentException',
154		['$cacheMode must be a valid cache mode constant']
155		);
156
157		$this->adapter = $adapter;
158		$this->baseUrl = $baseUrl;
159		$this->authentication = $authentication;
160		$this->cache = $cache ?? new NullCache();
		0 ignored issues – show Documentation Bug introduced 2018-02-25 22:39 UTC by Report Bug Copy Issue Report It seems like `$cache ?? new \Chadicus\...SimpleCache\NullCache()` of type `object<Psr\SimpleCache\CacheInterface>` is incompatible with the declared type `object<TraderInteractive\Api\Cache>` of property `$cache`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
161		$this->cacheMode = $cacheMode;
162		$this->accessToken = $accessToken;
163		$this->refreshToken = $refreshToken;
164		}
165
166		/**
167		* Get access token and refresh token
168		*
169		* @return array two string values, access token and refresh token
170		*/
171		public function getTokens()
172		{
173		return [$this->accessToken, $this->refreshToken];
174		}
175
176		/**
177		* Search the API resource using the specified $filters
178		*
179		* @param string $resource
180		* @param array $filters
181		*
182		* @return mixed opaque handle to be given to endIndex()
183		*/
184		public function startIndex($resource, array $filters = [])
185		{
186		Util::throwIfNotType(['string' => [$resource]], true);
187		$url = "{$this->baseUrl}/" . urlencode($resource) . '?' . Http::buildQueryString($filters);
188		return $this->start($url, 'GET');
189		}
190
191		/**
192		* @see startIndex()
193		*/
194		public function index($resource, array $filters = [])
195		{
196		return $this->end($this->startIndex($resource, $filters));
197		}
198
199		/**
200		* Get the details of an API resource based on $id
201		*
202		* @param string $resource
203		* @param string $id
204		* @param array $parameters
205		*
206		* @return mixed opaque handle to be given to endGet()
207		*/
208		public function startGet($resource, $id, array $parameters = [])
209		{
210		Util::throwIfNotType(['string' => [$resource, $id]], true);
211		$url = "{$this->baseUrl}/" . urlencode($resource) . '/' . urlencode($id);
212		if (!empty($parameters)) {
213		$url .= '?' . Http::buildQueryString($parameters);
214		}
215
216		return $this->start($url, 'GET');
217		}
218
219		/**
220		* @see startGet()
221		*/
222		public function get($resource, $id, array $parameters = [])
223		{
224		return $this->end($this->startGet($resource, $id, $parameters));
225		}
226
227		/**
228		* Create a new instance of an API resource using the provided $data
229		*
230		* @param string $resource
231		* @param array $data
232		*
233		* @return mixed opaque handle to be given to endPost()
234		*/
235		public function startPost($resource, array $data)
236		{
237		Util::throwIfNotType(['string' => [$resource]], true);
238		$url = "{$this->baseUrl}/" . urlencode($resource);
239		return $this->start($url, 'POST', json_encode($data), ['Content-Type' => 'application/json']);
240		}
241
242		/**
243		* @see startPost()
244		*/
245		public function post($resource, array $data)
246		{
247		return $this->end($this->startPost($resource, $data));
248		}
249
250		/**
251		* Update an existing instance of an API resource specified by $id with the provided $data
252		*
253		* @param string $resource
254		* @param string $id
255		* @param array $data
256		*
257		* @return mixed opaque handle to be given to endPut()
258		*/
259		public function startPut($resource, $id, array $data)
260		{
261		Util::throwIfNotType(['string' => [$resource, $id]], true);
262		$url = "{$this->baseUrl}/" . urlencode($resource) . '/' . urlencode($id);
263		return $this->start($url, 'PUT', json_encode($data), ['Content-Type' => 'application/json']);
264		}
265
266		/**
267		* @see startPut()
268		*/
269		public function put($resource, $id, array $data)
270		{
271		return $this->end($this->startPut($resource, $id, $data));
272		}
273
274		/**
275		* Delete an existing instance of an API resource specified by $id
276		*
277		* @param string $resource
278		* @param string $id
279		* @param array $data
280		*
281		* @return mixed opaque handle to be given to endDelete()
282		*/
283		public function startDelete($resource, $id = null, array $data = null)
284		{
285		Util::throwIfNotType(['string' => [$resource]], true);
286		$url = "{$this->baseUrl}/" . urlencode($resource);
287		if ($id !== null) {
288		Util::throwIfNotType(['string' => [$id]], true);
289		$url .= '/' . urlencode($id);
290		}
291
292		$json = $data !== null ? json_encode($data) : null;
293		return $this->start($url, 'DELETE', $json, ['Content-Type' => 'application/json']);
294		}
295
296		/**
297		* @see startDelete()
298		*/
299		public function delete($resource, $id = null, array $data = null)
300		{
301		return $this->end($this->startDelete($resource, $id, $data));
302		}
303
304		/**
305		* Get response of start*() method
306		*
307		* @param mixed $handle opaque handle from start*()
308		*
309		* @return Response
310		*/
311		public function end($handle)
312		{
313		Util::ensure(
314		true,
315		array_key_exists($handle, $this->handles),
316		'\InvalidArgumentException',
317		['$handle not found']
318		);
319
320		list($cachedResponse, $adapterHandle, $request) = $this->handles[$handle];
321		unset($this->handles[$handle]);
322
323		if ($cachedResponse !== null) {
324		return $cachedResponse;
325		}
326
327		$response = $this->adapter->end($adapterHandle);
328
329		if (self::isExpiredToken($response)) {
330		$this->refreshAccessToken();
331		$headers = $request->getHeaders();
332		$headers['Authorization'] = "Bearer {$this->accessToken}";
333		$request = new Request($request->getUrl(), $request->getMethod(), $request->getBody(), $headers);
334		$response = $this->adapter->end($this->adapter->start($request));
335		}
336
337	View Code Duplication	if (($this->cacheMode === self::CACHE_MODE_REFRESH
		0 ignored issues – show Duplication introduced 2018-02-23 12:17 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
338		\|\| $this->cacheMode & self::CACHE_MODE_GET)
339		&& $request->getMethod() === 'GET') {
340		$this->cache->set($this->getCacheKey($request), $response);
341		}
342
343		return $response;
344		}
345
346		/**
347		* Set the default headers
348		*
349		* @param array The default headers
350		*
351		* @return void
352		*/
353		public function setDefaultHeaders($defaultHeaders)
354		{
355		$this->defaultHeaders = $defaultHeaders;
356		}
357
358		private static function isExpiredToken(Response $response)
359		{
360		if ($response->getHttpCode() !== 401) {
361		return false;
362		}
363
364		$parsedJson = $response->getResponse();
365		$error = Arrays::get($parsedJson, 'error');
366
367		if (is_array($error)) {
368		$error = Arrays::get($error, 'code');
369		}
370
371		//This detects expired access tokens on Apigee
372		if ($error !== null) {
373		return $error === 'invalid_grant' \|\| $error === 'invalid_token';
374		}
375
376		$fault = Arrays::get($parsedJson, 'fault');
377		if ($fault === null) {
378		return false;
379		}
380
381		$error = strtolower(Arrays::get($fault, 'faultstring', ''));
382
383		return $error === 'invalid access token' \|\| $error === 'access token expired';
384		}
385
386		/**
387		* Obtains a new access token from the API
388		*
389		* @return void
390		*/
391		private function refreshAccessToken()
392		{
393		$request = $this->authentication->getTokenRequest($this->baseUrl, $this->refreshToken);
394		$response = $this->adapter->end($this->adapter->start($request));
395
396		list($this->accessToken, $this->refreshToken, $expires) = Authentication::parseTokenResponse($response);
397
398	View Code Duplication	if ($this->cache === self::CACHE_MODE_REFRESH \|\| $this->cacheMode & self::CACHE_MODE_TOKEN) {
		0 ignored issues – show Duplication introduced 2017-12-13 17:00 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
399		$this->cache->set($this->getCacheKey($request), $response, $expires);
400		return;
401		}
402		}
403
404		/**
405		* Helper method to set this clients access token from cache
406		*
407		* @return void
408		*/
409		private function setTokenFromCache()
410		{
411		if (($this->cacheMode & self::CACHE_MODE_TOKEN) === 0) {
412		return;
413		}
414
415		$cachedResponse = $this->cache->get(
416		$this->getCacheKey($this->authentication->getTokenRequest($this->baseUrl, $this->refreshToken))
417		);
418		if ($cachedResponse === null) {
419		return;
420		}
421
422		list($this->accessToken, $this->refreshToken, ) = Authentication::parseTokenResponse($cachedResponse);
423		}
424
425		/**
426		* Calls adapter->start() using caches
427		*
428		* @param string $url
429		* @param string $method
430		* @param string\|null $body
431		* @param array $headers Authorization key will be overwritten with the bearer token, and Accept-Encoding wil be
432		* overwritten with gzip.
433		*
434		* @return mixed opaque handle to be given to end()
435		*/
436		private function start($url, $method, $body = null, array $headers = [])
437		{
438		$headers += $this->defaultHeaders;
439		$headers['Accept-Encoding'] = 'gzip';
440		if ($this->accessToken === null) {
441		$this->setTokenFromCache();
442		}
443
444		if ($this->accessToken === null) {
445		$this->refreshAccessToken();
446		}
447
448		$headers['Authorization'] = "Bearer {$this->accessToken}";
449
450		$request = new Request($url, $method, $body, $headers);
451
452		if ($request->getMethod() === 'GET' && $this->cacheMode & self::CACHE_MODE_GET) {
453		$cached = $this->cache->get($this->getCacheKey($request));
454		if ($cached !== null) {
455		//The response is cache. Generate a key for the handles array
456		$key = uniqid();
457		$this->handles[$key] = [$cached, null, $request];
458		return $key;
459		}
460		}
461
462		$key = $this->adapter->start($request);
463		$this->handles[$key] = [null, $key, $request];
464		return $key;
465		}
466
467		private function getCacheKey(Request $request) : string
468		{
469		return CacheHelper::getCacheKey($request);
470		}
471		}
472

traderinteractive / tol-api-php

Pull Request — master (#42)

Client::isExpiredToken() C

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