Session::init() - Code Metrics - Inspection of "Merge pull request #474 from bluzphp/develop" - bluzphp/framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( e47c19...3aaaf2 )

by Anton

created 2021-07-05 13:03 UTC

Session::init() B

↳ Parent: Session

Complexity

Conditions	7
Paths	5

Size

Total Lines	20
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	18.42

Importance

Changes

Metric	Value
cc	7
eloc	12
nc	5
nop	0
dl	0
loc	20
ccs	5
cts	13
cp	0.3846
crap	18.42
rs	8.8333
c	0
b	0
f	0

<?php

/**
 * Bluz Framework Component
 *
 * @copyright Bluz PHP Team
 * @link      https://github.com/bluzphp/framework
 */

declare(strict_types=1);

namespace Bluz\Session;

use Bluz\Common\Exception\ComponentException;
use Bluz\Common\Options;
use SessionHandlerInterface;

/**
 * Session
 *
 * @package  Bluz\Session
 * @author   Anton Shevchuk
 * @link     https://github.com/bluzphp/framework/wiki/Session
 */
class Session
{
    use Options;

    /**
     * @var string value returned by session_name()
     */
    protected $name;

    /**
     * @var string namespace
     */
    protected $namespace = 'bluz';

    /**
     * @var string Session handler name
     */
    protected $adapter = 'files';

    /**
     * @var SessionHandlerInterface Session save handler
     */
    protected $sessionHandler;

    /**
     * Attempt to set the session name
     *
     * If the session has already been started, or if the name provided fails
     * validation, an exception will be raised.
     *
     * @param string $name
     *
     * @return void
     * @throws SessionException
     */
    public function setName(string $name): void
    {
        if ($this->sessionExists()) {
            throw new SessionException(
                'Cannot set session name after a session has already started'
            );
        }

        if (!preg_match('/^[a-zA-Z0-9]+$/', $name)) {
            throw new SessionException(
                'Name provided contains invalid characters; must be alphanumeric only'
            );
        }

        $this->name = $name;
        session_name($name);
    }

    /**
     * Get session name
     *
     * Proxies to {@link session_name()}.
     *
     * @return string
     */
    public function getName(): string
    {
        if (null === $this->name) {
            // If we're grabbing via session_name(), we don't need our
            // validation routine; additionally, calling setName() after
            // session_start() can lead to issues, and often we just need the name
            // in order to do things such as setting cookies.
            $this->name = session_name();
        }
        return $this->name;
    }

    /**
     * Set Namespace
     *
     * @param  string $namespace
     *
     * @return void
     */
    public function setNamespace(string $namespace): void
    {
        $this->namespace = $namespace;
    }

    /**
     * Get Namespace
     *
     * @return string
     */
    public function getNamespace(): string
    {
        return $this->namespace;
    }

    /**
     * Set session ID
     *
     * Can safely be called in the middle of a session.
     *
     * @param string $id
     *
     * @return void
     * @throws SessionException
     */
    public function setId(string $id): void
    {
        if ($this->sessionExists()) {
            throw new SessionException(
                'Session has already been started, to change the session ID call regenerateId()'
            );
        }
        session_id($id);
    }

    /**
     * Get session ID
     *
     * Proxies to {@link session_id()}
     *
     * @return string
     */
    public function getId(): string
    {
        return session_id();
    }

    /**
     * Regenerate id
     *
     * Regenerate the session ID, using session save handler's
     * native ID generation Can safely be called in the middle of a session.
     *
     * @param bool $deleteOldSession
     *
     * @return bool
     */
    public function regenerateId(bool $deleteOldSession = true): bool
    {
        if ($this->sessionExists() && session_id() !== '') {
            return session_regenerate_id($deleteOldSession);
        }
        return false;
    }

    /**
     * Returns true if session ID is set
     *
     * @return bool
     */
    public function cookieExists(): bool
    {
        return isset($_COOKIE[session_name()]);
    }

    /**
     * Does a session started and is it currently active?
     *
     * @return bool
     */
    public function sessionExists(): bool
    {
        return session_status() === PHP_SESSION_ACTIVE;
    }

    /**
     * Start session
     *
     * if No session currently exists, attempt to start it. Calls
     * {@link isValid()} once session_start() is called, and raises an
     * exception if validation fails.
     *
     * @return bool
     * @throws ComponentException
     */
    public function start(): bool
    {
        if ($this->sessionExists()) {
            return true;
        }

        if ($this->init()) {
            return session_start();
        }

        throw new ComponentException('Invalid adapter settings');
    }

    /**
     * Destroy/end a session
     *
     * @return void
     */
    public function destroy(): void
    {
        if (!$this->cookieExists() || !$this->sessionExists()) {
            return;
        }

        session_destroy();

        // send expire cookies
        $this->expireSessionCookie();

        // clear session data
        unset($_SESSION[$this->getNamespace()]);
    }

    /**
     * Set session handler name
     *
     * @param string $adapter
     *
     * @return void
     */
    public function setAdapter(string $adapter): void
    {
        $this->adapter = $adapter;
    }

    /**
     * Get session handler name
     *
     * @return string
     */
    public function getAdapter(): string
    {
        return $this->adapter;
    }

    /**
     * Register Save Handler with ext/session
     *
     * Since ext/session is coupled to this particular session manager
     * register the save handler with ext/session.
     *
     * @return bool
     * @throws ComponentException
     */
    protected function init(): bool
    {
        if ('files' === $this->adapter) {
            // try to apply settings
            if ($settings = $this->getOption('settings', 'files')) {
                $this->setSavePath($settings['save_path']);
            }
            return true;
        }
        if (null === $this->sessionHandler) {
            $adapterClass = '\\Bluz\\Session\\Adapter\\' . ucfirst($this->adapter);
            if (!class_exists($adapterClass) || !is_subclass_of($adapterClass, SessionHandlerInterface::class)) {
                throw new ComponentException("Class for session adapter `{$this->adapter}` not found");
            }
            $settings = $this->getOption('settings', $this->adapter) ?: [];

            $this->adapter = new $adapterClass($settings);

            return session_set_save_handler($this->adapter);
        }
        return true;
    }

    /**
     * Set the session cookie lifetime
     *
     * If a session already exists, destroys it (without sending an expiration
     * cookie), regenerates the session ID, and restarts the session.
     *
     * @param integer $ttl TTL in seconds
     *
     * @return void
     */
    public function setSessionCookieLifetime(int $ttl): void
    {
        // Set new cookie TTL
        session_set_cookie_params($ttl);

        if ($this->sessionExists()) {
            // There is a running session so we'll regenerate id to send a new cookie
            $this->regenerateId();
        }
    }

    /**
     * Expire the session cookie
     *
     * Sends a session cookie with no value, and with an expiry in the past.
     *
     * @return void
     */
    public function expireSessionCookie(): void
    {
        if (ini_get('session.use_cookies')) {
            $params = session_get_cookie_params();
            setcookie(
                $this->getName(),
                '',
                $_SERVER['REQUEST_TIME'] - 42000,
                $params['path'],
                $params['domain'],
                $params['secure'],
                $params['httponly']
            );
        }
    }

    /**
     * Set session save path
     *
     * @param string $savePath
     *
     * @return void
     * @throws ComponentException
     */
    protected function setSavePath(string $savePath): void
    {
        if (
            !is_dir($savePath)
            || !is_writable($savePath)
        ) {
            throw new ComponentException('Session path is not writable');
        }
        session_save_path($savePath);
    }

    /**
     * Set key/value pair
     *
     * @param string $key
     * @param mixed  $value
     *
     * @return void
     * @throws ComponentException
     */
    public function set(string $key, $value): void
    {
        $this->start();
        // check storage
        if (!isset($_SESSION[$this->getNamespace()])) {
            $_SESSION[$this->getNamespace()] = [];
        }
        $_SESSION[$this->namespace][$key] = $value;
    }

    /**
     * Get value by key
     *
     * @param string $key
     *
     * @return mixed
     * @throws ComponentException
     */
    public function get(string $key)
    {
        if ($this->contains($key)) {
            return $_SESSION[$this->namespace][$key];
        }
        return null;
    }

    /**
     * Isset
     *
     * @param string $key
     *
     * @return bool
     * @throws ComponentException
     */
    public function contains(string $key): bool
    {
        if ($this->cookieExists()) {
            $this->start();
        } elseif (!$this->sessionExists()) {
            return false;
        }
        return isset($_SESSION[$this->namespace][$key]);
    }

    /**
     * Unset
     *
     * @param string $key
     *
     * @return void
     * @throws ComponentException
     */
    public function delete(string $key): void
    {
        if ($this->contains($key)) {
            unset($_SESSION[$this->namespace][$key]);
        }
    }
}


1		<?php
2
3		/**
4		* Bluz Framework Component
5		*
6		* @copyright Bluz PHP Team
7		* @link https://github.com/bluzphp/framework
8		*/
9
10		declare(strict_types=1);
11
12		namespace Bluz\Session;
13
14		use Bluz\Common\Exception\ComponentException;
15		use Bluz\Common\Options;
16		use SessionHandlerInterface;
17
18		/**
19		* Session
20		*
21		* @package Bluz\Session
22		* @author Anton Shevchuk
23		* @link https://github.com/bluzphp/framework/wiki/Session
24		*/
25		class Session
26		{
27		use Options;
28
29		/**
30		* @var string value returned by session_name()
31		*/
32		protected $name;
33
34		/**
35		* @var string namespace
36		*/
37		protected $namespace = 'bluz';
38
39		/**
40		* @var string Session handler name
41		*/
42		protected $adapter = 'files';
43
44		/**
45		* @var SessionHandlerInterface Session save handler
46		*/
47		protected $sessionHandler;
48
49		/**
50		* Attempt to set the session name
51		*
52		* If the session has already been started, or if the name provided fails
53		* validation, an exception will be raised.
54		*
55		* @param string $name
56		*
57		* @return void
58		* @throws SessionException
59		*/
60		public function setName(string $name): void
61		{
62		if ($this->sessionExists()) {
63		throw new SessionException(
64		'Cannot set session name after a session has already started'
65		);
66		}
67
68		if (!preg_match('/^[a-zA-Z0-9]+$/', $name)) {
69		throw new SessionException(
70		'Name provided contains invalid characters; must be alphanumeric only'
71		);
72		}
73
74		$this->name = $name;
75		session_name($name);
76		}
77
78		/**
79		* Get session name
80		*
81		* Proxies to {@link session_name()}.
82		*
83		* @return string
84		*/
85		public function getName(): string
86		{
87		if (null === $this->name) {
88		// If we're grabbing via session_name(), we don't need our
89		// validation routine; additionally, calling setName() after
90		// session_start() can lead to issues, and often we just need the name
91		// in order to do things such as setting cookies.
92		$this->name = session_name();
93		}
94		return $this->name;
95		}
96
97		/**
98		* Set Namespace
99		*
100		* @param string $namespace
101		*
102		* @return void
103		*/
104		public function setNamespace(string $namespace): void
105		{
106		$this->namespace = $namespace;
107		}
108
109		/**
110		* Get Namespace
111		*
112		* @return string
113		*/
114	8	public function getNamespace(): string
115		{
116	8	return $this->namespace;
117		}
118
119		/**
120		* Set session ID
121		*
122		* Can safely be called in the middle of a session.
123		*
124		* @param string $id
125		*
126		* @return void
127		* @throws SessionException
128		*/
129		public function setId(string $id): void
130		{
131		if ($this->sessionExists()) {
132		throw new SessionException(
133		'Session has already been started, to change the session ID call regenerateId()'
134		);
135		}
136		session_id($id);
137		}
138
139		/**
140		* Get session ID
141		*
142		* Proxies to {@link session_id()}
143		*
144		* @return string
145		*/
146		public function getId(): string
147		{
148		return session_id();
149		}
150
151		/**
152		* Regenerate id
153		*
154		* Regenerate the session ID, using session save handler's
155		* native ID generation Can safely be called in the middle of a session.
156		*
157		* @param bool $deleteOldSession
158		*
159		* @return bool
160		*/
161		public function regenerateId(bool $deleteOldSession = true): bool
162		{
163		if ($this->sessionExists() && session_id() !== '') {
164		return session_regenerate_id($deleteOldSession);
165		}
166		return false;
167		}
168
169		/**
170		* Returns true if session ID is set
171		*
172		* @return bool
173		*/
174	11	public function cookieExists(): bool
175		{
176	11	return isset($_COOKIE[session_name()]);
177		}
178
179		/**
180		* Does a session started and is it currently active?
181		*
182		* @return bool
183		*/
184	13	public function sessionExists(): bool
185		{
186	13	return session_status() === PHP_SESSION_ACTIVE;
187		}
188
189		/**
190		* Start session
191		*
192		* if No session currently exists, attempt to start it. Calls
193		* {@link isValid()} once session_start() is called, and raises an
194		* exception if validation fails.
195		*
196		* @return bool
197		* @throws ComponentException
198		*/
199	8	public function start(): bool
200		{
201	8	if ($this->sessionExists()) {
202	8	return true;
203		}
204
205	1	if ($this->init()) {
206	1	return session_start();
207		}
208
209		throw new ComponentException('Invalid adapter settings');
210		}
211
212		/**
213		* Destroy/end a session
214		*
215		* @return void
216		*/
217		public function destroy(): void
218		{
219		if (!$this->cookieExists() \|\| !$this->sessionExists()) {
220		return;
221		}
222
223		session_destroy();
224
225		// send expire cookies
226		$this->expireSessionCookie();
227
228		// clear session data
229		unset($_SESSION[$this->getNamespace()]);
230		}
231
232		/**
233		* Set session handler name
234		*
235		* @param string $adapter
236		*
237		* @return void
238		*/
239	604	public function setAdapter(string $adapter): void
240		{
241	604	$this->adapter = $adapter;
242	604	}
243
244		/**
245		* Get session handler name
246		*
247		* @return string
248		*/
249		public function getAdapter(): string
250		{
251		return $this->adapter;
252		}
253
254		/**
255		* Register Save Handler with ext/session
256		*
257		* Since ext/session is coupled to this particular session manager
258		* register the save handler with ext/session.
259		*
260		* @return bool
261		* @throws ComponentException
262		*/
263	1	protected function init(): bool
264		{
265	1	if ('files' === $this->adapter) {
266		// try to apply settings
267	1	if ($settings = $this->getOption('settings', 'files')) {
268	1	$this->setSavePath($settings['save_path']);
269		}
270	1	return true;
271		}
272		if (null === $this->sessionHandler) {
273		$adapterClass = '\\Bluz\\Session\\Adapter\\' . ucfirst($this->adapter);
274		if (!class_exists($adapterClass) \|\| !is_subclass_of($adapterClass, SessionHandlerInterface::class)) {
275		throw new ComponentException("Class for session adapter `{$this->adapter}` not found");
276		}
277		$settings = $this->getOption('settings', $this->adapter) ?: [];
278
279		$this->adapter = new $adapterClass($settings);
		0 ignored issues – show Documentation Bug introduced 2021-07-05 07:56 UTC by Report Bug Copy Issue Report It seems like `new $adapterClass($settings)` of type `object` is incompatible with the declared type `string` of property `$adapter`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
280		return session_set_save_handler($this->adapter);
281		}
282		return true;
283		}
284
285		/**
286		* Set the session cookie lifetime
287		*
288		* If a session already exists, destroys it (without sending an expiration
289		* cookie), regenerates the session ID, and restarts the session.
290		*
291		* @param integer $ttl TTL in seconds
292		*
293		* @return void
294		*/
295		public function setSessionCookieLifetime(int $ttl): void
296		{
297		// Set new cookie TTL
298		session_set_cookie_params($ttl);
299
300		if ($this->sessionExists()) {
301		// There is a running session so we'll regenerate id to send a new cookie
302		$this->regenerateId();
303		}
304		}
305
306		/**
307		* Expire the session cookie
308		*
309		* Sends a session cookie with no value, and with an expiry in the past.
310		*
311		* @return void
312		*/
313		public function expireSessionCookie(): void
314		{
315		if (ini_get('session.use_cookies')) {
316		$params = session_get_cookie_params();
317		setcookie(
318		$this->getName(),
319		'',
320		$_SERVER['REQUEST_TIME'] - 42000,
321		$params['path'],
322		$params['domain'],
323		$params['secure'],
324		$params['httponly']
325		);
326		}
327		}
328
329		/**
330		* Set session save path
331		*
332		* @param string $savePath
333		*
334		* @return void
335		* @throws ComponentException
336		*/
337	1	protected function setSavePath(string $savePath): void
338		{
339		if (
340	1	!is_dir($savePath)
341	1	\|\| !is_writable($savePath)
342		) {
343		throw new ComponentException('Session path is not writable');
344		}
345	1	session_save_path($savePath);
346	1	}
347
348		/**
349		* Set key/value pair
350		*
351		* @param string $key
352		* @param mixed $value
353		*
354		* @return void
355		* @throws ComponentException
356		*/
357	9	public function set(string $key, $value): void
358		{
359	9	$this->start();
360		// check storage
361	9	if (!isset($_SESSION[$this->getNamespace()])) {
362	9	$_SESSION[$this->getNamespace()] = [];
363		}
364	9	$_SESSION[$this->namespace][$key] = $value;
365	9	}
366
367		/**
368		* Get value by key
369		*
370		* @param string $key
371		*
372		* @return mixed
373		* @throws ComponentException
374		*/
375	12	public function get(string $key)
376		{
377	12	if ($this->contains($key)) {
378	7	return $_SESSION[$this->namespace][$key];
379		}
380	12	return null;
381		}
382
383		/**
384		* Isset
385		*
386		* @param string $key
387		*
388		* @return bool
389		* @throws ComponentException
390		*/
391	12	public function contains(string $key): bool
392		{
393	12	if ($this->cookieExists()) {
394		$this->start();
395	12	} elseif (!$this->sessionExists()) {
396		return false;
397		}
398	12	return isset($_SESSION[$this->namespace][$key]);
399		}
400
401		/**
402		* Unset
403		*
404		* @param string $key
405		*
406		* @return void
407		* @throws ComponentException
408		*/
409	1	public function delete(string $key): void
410		{
411	1	if ($this->contains($key)) {
412	1	unset($_SESSION[$this->namespace][$key]);
413		}
414	1	}
415		}
416

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