EventsController::initialize() - Code Metrics - Inspection of "Create the logs folder for cli tests" - phpmyadmin/error-reporting-server - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 083ff7...c84473 )

by William

created 2021-03-08 22:23 UTC

EventsController::initialize() A

↳ Parent: EventsController

Complexity

Conditions	1
Paths	1

Size

Total Lines	7
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	2
nc	1
nop	0
dl	0
loc	7
ccs	3
cts	3
cp	1
crap	1
rs	10
c	1
b	0
f	0

<?php

/**
 * Events controller Github webhook events
 *
 * phpMyAdmin Error reporting server
 * Copyright (c) phpMyAdmin project (https://www.phpmyadmin.net/)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright Copyright (c) phpMyAdmin project (https://www.phpmyadmin.net/)
 * @license   https://opensource.org/licenses/mit-license.php MIT License
 *
 * @see      https://www.phpmyadmin.net/
 */

namespace App\Controller;

use Cake\Core\Configure;
use Cake\Event\EventInterface;
use Cake\Http\Response;
use Cake\Http\ServerRequest;
use Cake\Log\Log;
use Cake\ORM\TableRegistry;
use function count;
use function explode;
use function file_get_contents;
use function hash_hmac;
use function strpos;
use function json_decode;

/**
 * Events controller Github webhook events
 */
class EventsController extends AppController
{
    public function initialize(): void
    {
        parent::initialize();
        //FIXME: it got deprecated and does not work anymore
        //$this->loadComponent('Csrf');

        $this->Reports = TableRegistry::getTableLocator()->get('Reports');
    }

    public function beforeFilter(EventInterface $event)
    {
        //$this->getEventManager()->off($this->Csrf);
    }

    public function index(): ?Response
    {
        // Only allow POST requests
        $this->request->allowMethod(['post']);

        // Validate request
        $statusCode = $this->validateRequest($this->request);
        if ($statusCode !== 201) {
            Log::error(
                'Could not validate the request. Sending a '
                    . $statusCode . ' response.'
            );

            // Send a response
            $this->disableAutoRender();

            return $this->response->withStatus($statusCode);
        }

        if ($statusCode === 200) {
           // Send a success response to ping event
            $this->disableAutoRender();

            return $this->response->withStatus($statusCode);
        }

        $issuesData = json_decode((string) $this->request->getBody(), true);
        $eventAction = $issuesData['action'];
        $issueNumber = $issuesData['issue'] ? $issuesData['issue']['number'] : '';

        if ($eventAction === 'closed'
            || $eventAction === 'opened'
            || $eventAction === 'reopened'
        ) {
            $status = $this->getAppropriateStatus($eventAction);
            $reportsUpdated = $this->Reports->setLinkedReportStatus($issueNumber, $status);
            if ($reportsUpdated > 0) {
                Log::debug(
                    $reportsUpdated . ' linked reports to issue number '
                        . $issueNumber . ' were updated according to received action '
                        . $eventAction
                );
            } else {
                Log::info(
                    'No linked report found for issue number \'' . $issueNumber
                    . '\'. Ignoring the event.'
                );
                $statusCode = 204;
            }
        } else {
            Log::info(
                'received a webhook event for action \'' . $eventAction
                . '\' on issue number ' . $issueNumber . '. Ignoring the event.'
            );
            $statusCode = 204;
        }

        // Send a response
        $this->disableAutoRender();

        return $this->response->withStatus($statusCode);
    }

    /**
     * Validate HTTP Request received
     *
     * @param ServerRequest $request Request object
     *
     * @return int status code based on if this is a valid request
     */
    protected function validateRequest(ServerRequest $request): int
    {
        // Default $statusCode
        $statusCode = 201;

        $userAgent = $request->getHeaderLine('User-Agent');
        $eventType = $request->getHeaderLine('X-GitHub-Event');

        $receivedHashHeader = $request->getHeaderLine('X-Hub-Signature');
        $algo = '';
        $receivedHash = '';
        if ($receivedHashHeader !== null) {
            $parts = explode('=', $receivedHashHeader);
            if (count($parts) > 1) {
                $algo = $parts[0];
                $receivedHash = $parts[1];
            }
        }

        $expectedHash = $this->getHash(file_get_contents('php://input'), $algo);

        if ($userAgent !== null && strpos($userAgent, 'GitHub-Hookshot') !== 0) {
            // Check if the User-agent is Github
            // Otherwise, Send a '403: Forbidden'

            Log::error(
                'Invalid User agent: ' . $userAgent
                . '. Ignoring the event.'
            );

            return 403;
        }

        if ($eventType !== null && $eventType === 'ping') {
            // Check if the request is based on 'issues' event
            // Otherwise, Send a '400: Bad Request'

            Log::info(
                'Ping event type received.'
            );

            return 200;
        }

        if ($eventType !== null && $eventType !== 'issues') {
            // Check if the request is based on 'issues' event
            // Otherwise, Send a '400: Bad Request'

            Log::error(
                'Unexpected event type: ' . $eventType
                . '. Ignoring the event.'
            );

            return 400;
        }

        if ($receivedHash !== $expectedHash) {
            // Check if hash matches
            // Otherwise, Send a '401: Unauthorized'

            Log::error(
                'received hash ' . $receivedHash . ' does not match '
                . ' expected hash ' . $expectedHash
                . '. Ignoring the event.'
            );

            return 401;
        }

        return $statusCode;
    }

    /**
     * Get the hash of raw POST payload
     *
     * @param string $payload Raw POST body string
     * @param string $algo    Algorithm used to calculate the hash
     *
     * @return string Hmac Digest-based hash of payload
     */
    protected function getHash(string $payload, string $algo): string
    {
        if ($algo === '') {
            return '';
        }
        $key = Configure::read('GithubWebhookSecret');

        return hash_hmac($algo, $payload, $key);
    }

    /**
     * Get appropriate new status based on action received in github event
     *
     * @param string $action Action received in Github webhook event
     *
     * @return string Appropriate new status for the related reports
     */
    protected function getAppropriateStatus(string $action): string
    {
        $status = 'forwarded';

        switch ($action) {
            case 'opened':
                break;

            case 'reopened':
                break;

            case 'closed':
                $status = 'resolved';
                break;
        }

        return $status;
    }
}


1		<?php
2
3		/**
4		* Events controller Github webhook events
5		*
6		* phpMyAdmin Error reporting server
7		* Copyright (c) phpMyAdmin project (https://www.phpmyadmin.net/)
8		*
9		* Licensed under The MIT License
10		* For full copyright and license information, please see the LICENSE.txt
11		* Redistributions of files must retain the above copyright notice.
12		*
13		* @copyright Copyright (c) phpMyAdmin project (https://www.phpmyadmin.net/)
14		* @license https://opensource.org/licenses/mit-license.php MIT License
15		*
16		* @see https://www.phpmyadmin.net/
17		*/
18
19		namespace App\Controller;
20
21		use Cake\Core\Configure;
22		use Cake\Event\EventInterface;
23		use Cake\Http\Response;
24		use Cake\Http\ServerRequest;
25		use Cake\Log\Log;
26		use Cake\ORM\TableRegistry;
27		use function count;
28		use function explode;
29		use function file_get_contents;
30		use function hash_hmac;
31		use function strpos;
32		use function json_decode;
33
34		/**
35		* Events controller Github webhook events
36		*/
37		class EventsController extends AppController
38		{
39	7	public function initialize(): void
40		{
41	7	parent::initialize();
42		//FIXME: it got deprecated and does not work anymore
43		//$this->loadComponent('Csrf');
44
45	7	$this->Reports = TableRegistry::getTableLocator()->get('Reports');
46	7	}
47
48	7	public function beforeFilter(EventInterface $event)
49		{
50		//$this->getEventManager()->off($this->Csrf);
51	7	}
52
53	7	public function index(): ?Response
54		{
55		// Only allow POST requests
56	7	$this->request->allowMethod(['post']);
57
58		// Validate request
59	7	$statusCode = $this->validateRequest($this->request);
60	7	if ($statusCode !== 201) {
61	7	Log::error(
62		'Could not validate the request. Sending a '
63	7	. $statusCode . ' response.'
64		);
65
66		// Send a response
67	7	$this->disableAutoRender();
68
69	7	return $this->response->withStatus($statusCode);
70		}
71
72	7	if ($statusCode === 200) {
73		// Send a success response to ping event
74		$this->disableAutoRender();
75
76		return $this->response->withStatus($statusCode);
77		}
78
79	7	$issuesData = json_decode((string) $this->request->getBody(), true);
80	7	$eventAction = $issuesData['action'];
81	7	$issueNumber = $issuesData['issue'] ? $issuesData['issue']['number'] : '';
82
83	7	if ($eventAction === 'closed'
84	7	\|\| $eventAction === 'opened'
85	7	\|\| $eventAction === 'reopened'
86		) {
87	7	$status = $this->getAppropriateStatus($eventAction);
88	7	$reportsUpdated = $this->Reports->setLinkedReportStatus($issueNumber, $status);
89	7	if ($reportsUpdated > 0) {
90	7	Log::debug(
91	7	$reportsUpdated . ' linked reports to issue number '
92	7	. $issueNumber . ' were updated according to received action '
93	7	. $eventAction
94		);
95		} else {
96	7	Log::info(
97	7	'No linked report found for issue number \'' . $issueNumber
98	7	. '\'. Ignoring the event.'
99		);
100	7	$statusCode = 204;
101		}
102		} else {
103	7	Log::info(
104	7	'received a webhook event for action \'' . $eventAction
105	7	. '\' on issue number ' . $issueNumber . '. Ignoring the event.'
106		);
107	7	$statusCode = 204;
108		}
109
110		// Send a response
111	7	$this->disableAutoRender();
112
113	7	return $this->response->withStatus($statusCode);
114		}
115
116		/**
117		* Validate HTTP Request received
118		*
119		* @param ServerRequest $request Request object
120		*
121		* @return int status code based on if this is a valid request
122		*/
123	7	protected function validateRequest(ServerRequest $request): int
124		{
125		// Default $statusCode
126	7	$statusCode = 201;
127
128	7	$userAgent = $request->getHeaderLine('User-Agent');
129	7	$eventType = $request->getHeaderLine('X-GitHub-Event');
130
131	7	$receivedHashHeader = $request->getHeaderLine('X-Hub-Signature');
132	7	$algo = '';
133	7	$receivedHash = '';
134	7	if ($receivedHashHeader !== null) {
135	7	$parts = explode('=', $receivedHashHeader);
136	7	if (count($parts) > 1) {
137	7	$algo = $parts[0];
138	7	$receivedHash = $parts[1];
139		}
140		}
141
142	7	$expectedHash = $this->getHash(file_get_contents('php://input'), $algo);
143
144	7	if ($userAgent !== null && strpos($userAgent, 'GitHub-Hookshot') !== 0) {
145		// Check if the User-agent is Github
146		// Otherwise, Send a '403: Forbidden'
147
148	7	Log::error(
149	7	'Invalid User agent: ' . $userAgent
150	7	. '. Ignoring the event.'
151		);
152
153	7	return 403;
154		}
155
156	7	if ($eventType !== null && $eventType === 'ping') {
157		// Check if the request is based on 'issues' event
158		// Otherwise, Send a '400: Bad Request'
159
160	7	Log::info(
161	7	'Ping event type received.'
162		);
163
164	7	return 200;
165		}
166
167	7	if ($eventType !== null && $eventType !== 'issues') {
168		// Check if the request is based on 'issues' event
169		// Otherwise, Send a '400: Bad Request'
170
171	7	Log::error(
172	7	'Unexpected event type: ' . $eventType
173	7	. '. Ignoring the event.'
174		);
175
176	7	return 400;
177		}
178
179	7	if ($receivedHash !== $expectedHash) {
180		// Check if hash matches
181		// Otherwise, Send a '401: Unauthorized'
182
183	7	Log::error(
184	7	'received hash ' . $receivedHash . ' does not match '
185	7	. ' expected hash ' . $expectedHash
186	7	. '. Ignoring the event.'
187		);
188
189	7	return 401;
190		}
191
192	7	return $statusCode;
193		}
194
195		/**
196		* Get the hash of raw POST payload
197		*
198		* @param string $payload Raw POST body string
199		* @param string $algo Algorithm used to calculate the hash
200		*
201		* @return string Hmac Digest-based hash of payload
202		*/
203	7	protected function getHash(string $payload, string $algo): string
204		{
205	7	if ($algo === '') {
206	7	return '';
207		}
208	7	$key = Configure::read('GithubWebhookSecret');
209
210	7	return hash_hmac($algo, $payload, $key);
211		}
212
213		/**
214		* Get appropriate new status based on action received in github event
215		*
216		* @param string $action Action received in Github webhook event
217		*
218		* @return string Appropriate new status for the related reports
219		*/
220	7	protected function getAppropriateStatus(string $action): string
221		{
222	7	$status = 'forwarded';
223
224	7	switch ($action) {
225	7	case 'opened':
226	7	break;
227
228	7	case 'reopened':
229	7	break;
230
231	7	case 'closed':
232	7	$status = 'resolved';
233	7	break;
234		}
235
236	7	return $status;
237		}
238		}
239

phpmyadmin / error-reporting-server

Push — master ( 083ff7...c84473 )

EventsController::initialize() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

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