RequestValidationHelper::validateEmail() - Code Metrics - Inspection of "Improvements to bans" - enwikipedia-acc/waca - Measure and Improve Code Quality continuously with Scrutinizer

Failed Conditions

Pull Request — bugsquish (#574)

by Simon

created 2020-06-28 14:58 UTC

RequestValidationHelper::validateEmail() A

↳ Parent: RequestValidationHelper

Complexity

Conditions	6
Paths	24

Size

Total Lines	29
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	42

Importance

Changes	1
Bugs	1	Features	0

Metric	Value
eloc	11
dl	0
loc	29
ccs	0
cts	18
cp	0
rs	9.2222
c	1
b	1
f	0
cc	6
nc	24
nop	2
crap	42

<?php
/******************************************************************************
 * Wikipedia Account Creation Assistance tool                                 *
 *                                                                            *
 * All code in this file is released into the public domain by the ACC        *
 * Development Team. Please see team.json for a list of contributors.         *
 ******************************************************************************/

namespace Waca\Validation;

use Exception;
use Waca\DataObjects\Ban;
use Waca\DataObjects\Comment;
use Waca\DataObjects\Request;
use Waca\Helpers\HttpHelper;
use Waca\Helpers\Interfaces\IBanHelper;
use Waca\Helpers\Logger;
use Waca\PdoDatabase;
use Waca\Providers\Interfaces\IAntiSpoofProvider;
use Waca\Providers\Interfaces\IXffTrustProvider;
use Waca\Providers\TorExitProvider;
use Waca\RequestStatus;
use Waca\SiteConfiguration;

/**
 * Performs the validation of an incoming request.
 */
class RequestValidationHelper
{
    /** @var IBanHelper */
    private $banHelper;
    /** @var PdoDatabase */
    private $database;
    /** @var IAntiSpoofProvider */
    private $antiSpoofProvider;
    /** @var IXffTrustProvider */
    private $xffTrustProvider;
    /** @var HttpHelper */
    private $httpHelper;
    /**
     * @var string
     */
    private $mediawikiApiEndpoint;
    private $titleBlacklistEnabled;
    /**
     * @var TorExitProvider
     */
    private $torExitProvider;
    /**
     * @var SiteConfiguration
     */
    private $siteConfiguration;

    /**
     * Summary of __construct
     *
     * @param IBanHelper         $banHelper
     * @param PdoDatabase        $database
     * @param IAntiSpoofProvider $antiSpoofProvider
     * @param IXffTrustProvider  $xffTrustProvider
     * @param HttpHelper         $httpHelper
     * @param TorExitProvider    $torExitProvider
     * @param SiteConfiguration  $siteConfiguration
     */
    public function __construct(
        IBanHelper $banHelper,
        PdoDatabase $database,
        IAntiSpoofProvider $antiSpoofProvider,
        IXffTrustProvider $xffTrustProvider,
        HttpHelper $httpHelper,
        TorExitProvider $torExitProvider,
        SiteConfiguration $siteConfiguration
    ) {
        $this->banHelper = $banHelper;
        $this->database = $database;
        $this->antiSpoofProvider = $antiSpoofProvider;
        $this->xffTrustProvider = $xffTrustProvider;
        $this->httpHelper = $httpHelper;
        $this->mediawikiApiEndpoint = $siteConfiguration->getMediawikiWebServiceEndpoint();
        $this->titleBlacklistEnabled = $siteConfiguration->getTitleBlacklistEnabled();
        $this->torExitProvider = $torExitProvider;
        $this->siteConfiguration = $siteConfiguration;
    }

    /**
     * Summary of validateName
     *
     * @param Request $request
     *
     * @return ValidationError[]
     */
    public function validateName(Request $request)
    {
        $errorList = array();

        // ERRORS
        // name is empty
        if (trim($request->getName()) == "") {
            $errorList[ValidationError::NAME_EMPTY] = new ValidationError(ValidationError::NAME_EMPTY);
        }

        // username already exists
        if ($this->userExists($request)) {
            $errorList[ValidationError::NAME_EXISTS] = new ValidationError(ValidationError::NAME_EXISTS);
        }

        // username part of SUL account
        if ($this->userSulExists($request)) {
            // using same error slot as name exists - it's the same sort of error, and we probably only want to show one.
            $errorList[ValidationError::NAME_EXISTS] = new ValidationError(ValidationError::NAME_EXISTS_SUL);
        }

        // username is numbers
        if (preg_match("/^[0-9]+$/", $request->getName()) === 1) {
            $errorList[ValidationError::NAME_NUMONLY] = new ValidationError(ValidationError::NAME_NUMONLY);
        }

        // username can't contain #@/<>[]|{}
        if (preg_match("/[" . preg_quote("#@/<>[]|{}", "/") . "]/", $request->getName()) === 1) {
            $errorList[ValidationError::NAME_INVALIDCHAR] = new ValidationError(ValidationError::NAME_INVALIDCHAR);
        }

        // existing non-closed request for this name
        if ($this->nameRequestExists($request)) {
            $errorList[ValidationError::OPEN_REQUEST_NAME] = new ValidationError(ValidationError::OPEN_REQUEST_NAME);
        }

        return $errorList;
    }

    /**
     * Summary of validateEmail
     *
     * @param Request $request
     * @param string  $emailConfirmation
     *
     * @return ValidationError[]
     */
    public function validateEmail(Request $request, $emailConfirmation)
    {
        $errorList = array();

        // ERRORS

        // email addresses must match
        if ($request->getEmail() != $emailConfirmation) {
            $errorList[ValidationError::EMAIL_MISMATCH] = new ValidationError(ValidationError::EMAIL_MISMATCH);
        }

        // email address must be validly formed
        if (trim($request->getEmail()) == "") {
            $errorList[ValidationError::EMAIL_EMPTY] = new ValidationError(ValidationError::EMAIL_EMPTY);
        }

        // email address must be validly formed
        if (!filter_var($request->getEmail(), FILTER_VALIDATE_EMAIL)) {
            if (trim($request->getEmail()) != "") {
                $errorList[ValidationError::EMAIL_INVALID] = new ValidationError(ValidationError::EMAIL_INVALID);
            }
        }

        // email address can't be wikimedia/wikipedia .com/org
        if (preg_match('/.*@.*wiki(m.dia|p.dia)\.(org|com)/i', $request->getEmail()) === 1) {
            $errorList[ValidationError::EMAIL_WIKIMEDIA] = new ValidationError(ValidationError::EMAIL_WIKIMEDIA);
        }

        return $errorList;
    }

    /**
     * Summary of validateOther
     *
     * @param Request $request
     *
     * @return ValidationError[]
     */
    public function validateOther(Request $request)
    {
        $errorList = array();

        $trustedIp = $this->xffTrustProvider->getTrustedClientIp($request->getIp(),
            $request->getForwardedIp());

        // ERRORS

        // TOR nodes
        if ($this->torExitProvider->isTorExit($trustedIp)) {
            $errorList[ValidationError::BANNED] = new ValidationError(ValidationError::BANNED_TOR);
        }

        // Bans
        if ($this->banHelper->isBlockBanned($request)) {
            $errorList[ValidationError::BANNED] = new ValidationError(ValidationError::BANNED);
        }

        return $errorList;
    }

    public function postSaveValidations(Request $request)
    {
        // Antispoof check
        $this->checkAntiSpoof($request);

        // Blacklist check
        $this->checkTitleBlacklist($request);

        $bans = $this->banHelper->getBans($request);

        foreach ($bans as $ban) {
            if ($ban->getAction() == Ban::ACTION_DROP) {
                $request->setStatus(RequestStatus::CLOSED);
                $request->save();

                Logger::closeRequest($request->getDatabase(), $request, 0, null);

                $comment = new Comment();
                $comment->setDatabase($this->database);
                $comment->setRequest($request->getId());
                $comment->setVisibility('user');
                $comment->setUser(null);

                $comment->setComment('Request dropped automatically due to matching rule.');
                $comment->save();
            }

            if ($ban->getAction() == Ban::ACTION_DEFER) {
                $this->deferRequest($request, $ban->getActionTarget(), 'Request deferred automatically due to matching rule.');
            }
        }
    }

    private function checkAntiSpoof(Request $request)
    {
        try {
            if (count($this->antiSpoofProvider->getSpoofs($request->getName())) > 0) {
                // If there were spoofs an Admin should handle the request.
                $this->deferRequest($request, 'Flagged users',
                    'Request automatically deferred to flagged users due to AntiSpoof hit');
            }
        }
        catch (Exception $ex) {
            // logme
        }
    }

    private function checkTitleBlacklist(Request $request)
    {
        if ($this->titleBlacklistEnabled == 1) {
            $apiResult = $this->httpHelper->get(
                $this->mediawikiApiEndpoint,
                array(
                    'action'       => 'titleblacklist',
                    'tbtitle'      => $request->getName(),
                    'tbaction'     => 'new-account',
                    'tbnooverride' => true,
                    'format'       => 'php',
                )
            );

            $data = unserialize($apiResult);

            $requestIsOk = $data['titleblacklist']['result'] == "ok";

            if (!$requestIsOk) {
                $this->deferRequest($request, 'Flagged users',
                    'Request automatically deferred to flagged users due to title blacklist hit');
            }
        }
    }

    private function userExists(Request $request)
    {
        $userExists = $this->httpHelper->get(
            $this->mediawikiApiEndpoint,
            array(
                'action'  => 'query',
                'list'    => 'users',
                'ususers' => $request->getName(),
                'format'  => 'php',
            )
        );

        $ue = unserialize($userExists);
        if (!isset ($ue['query']['users']['0']['missing']) && isset ($ue['query']['users']['0']['userid'])) {
            return true;
        }

        return false;
    }

    private function userSulExists(Request $request)
    {
        $requestName = $request->getName();

        $userExists = $this->httpHelper->get(
            $this->mediawikiApiEndpoint,
            array(
                'action'  => 'query',
                'meta'    => 'globaluserinfo',
                'guiuser' => $requestName,
                'format'  => 'php',
            )
        );

        $ue = unserialize($userExists);
        if (isset ($ue['query']['globaluserinfo']['id'])) {
            return true;
        }

        return false;
    }

    /**
     * Checks if a request with this name is currently open
     *
     * @param Request $request
     *
     * @return bool
     */
    private function nameRequestExists(Request $request)
    {
        $query = "SELECT COUNT(id) FROM request WHERE status != 'Closed' AND name = :name;";
        $statement = $this->database->prepare($query);
        $statement->execute(array(':name' => $request->getName()));

        if (!$statement) {
            return false;
        }

        return $statement->fetchColumn() > 0;
    }

    private function deferRequest(Request $request, $targetQueue, $deferComment): void
    {
        $request->setStatus($targetQueue);
        $request->save();

        $logTarget = $this->siteConfiguration->getRequestStates()[$targetQueue]['defertolog'];

        Logger::deferRequest($this->database, $request, $logTarget);

        $comment = new Comment();
        $comment->setDatabase($this->database);
        $comment->setRequest($request->getId());
        $comment->setVisibility('user');
        $comment->setUser(null);

        $comment->setComment($deferComment);
        $comment->save();
    }
}


1			<?php
2			/******************************************************************************
3			* Wikipedia Account Creation Assistance tool *
4			* *
5			* All code in this file is released into the public domain by the ACC *
6			* Development Team. Please see team.json for a list of contributors. *
7			******************************************************************************/
8
9			namespace Waca\Validation;
10
11			use Exception;
12			use Waca\DataObjects\Ban;
13			use Waca\DataObjects\Comment;
14			use Waca\DataObjects\Request;
15			use Waca\Helpers\HttpHelper;
16			use Waca\Helpers\Interfaces\IBanHelper;
17			use Waca\Helpers\Logger;
18			use Waca\PdoDatabase;
19			use Waca\Providers\Interfaces\IAntiSpoofProvider;
20			use Waca\Providers\Interfaces\IXffTrustProvider;
21			use Waca\Providers\TorExitProvider;
22			use Waca\RequestStatus;
23			use Waca\SiteConfiguration;
24
25			/**
26			* Performs the validation of an incoming request.
27			*/
28			class RequestValidationHelper
29			{
30			/** @var IBanHelper */
31			private $banHelper;
32			/** @var PdoDatabase */
33			private $database;
34			/** @var IAntiSpoofProvider */
35			private $antiSpoofProvider;
36			/** @var IXffTrustProvider */
37			private $xffTrustProvider;
38			/** @var HttpHelper */
39			private $httpHelper;
40			/**
41			* @var string
42			*/
43			private $mediawikiApiEndpoint;
44			private $titleBlacklistEnabled;
45			/**
46			* @var TorExitProvider
47			*/
48			private $torExitProvider;
49			/**
50			* @var SiteConfiguration
51			*/
52			private $siteConfiguration;
53
54			/**
55			* Summary of __construct
56			*
57			* @param IBanHelper $banHelper
58			* @param PdoDatabase $database
59			* @param IAntiSpoofProvider $antiSpoofProvider
60			* @param IXffTrustProvider $xffTrustProvider
61			* @param HttpHelper $httpHelper
62			* @param TorExitProvider $torExitProvider
63			* @param SiteConfiguration $siteConfiguration
64			*/
65			public function __construct(
66			IBanHelper $banHelper,
67			PdoDatabase $database,
68			IAntiSpoofProvider $antiSpoofProvider,
69			IXffTrustProvider $xffTrustProvider,
70			HttpHelper $httpHelper,
71			TorExitProvider $torExitProvider,
72			SiteConfiguration $siteConfiguration
73			) {
74			$this->banHelper = $banHelper;
75			$this->database = $database;
76			$this->antiSpoofProvider = $antiSpoofProvider;
77			$this->xffTrustProvider = $xffTrustProvider;
78			$this->httpHelper = $httpHelper;
79			$this->mediawikiApiEndpoint = $siteConfiguration->getMediawikiWebServiceEndpoint();
80			$this->titleBlacklistEnabled = $siteConfiguration->getTitleBlacklistEnabled();
81			$this->torExitProvider = $torExitProvider;
82			$this->siteConfiguration = $siteConfiguration;
83			}
84
85			/**
86			* Summary of validateName
87			*
88			* @param Request $request
89			*
90			* @return ValidationError[]
91			*/
92			public function validateName(Request $request)
93			{
94			$errorList = array();
95
96			// ERRORS
97			// name is empty
98			if (trim($request->getName()) == "") {
99			$errorList[ValidationError::NAME_EMPTY] = new ValidationError(ValidationError::NAME_EMPTY);
100			}
101
102			// username already exists
103			if ($this->userExists($request)) {
104			$errorList[ValidationError::NAME_EXISTS] = new ValidationError(ValidationError::NAME_EXISTS);
105			}
106
107			// username part of SUL account
108			if ($this->userSulExists($request)) {
109			// using same error slot as name exists - it's the same sort of error, and we probably only want to show one.
110			$errorList[ValidationError::NAME_EXISTS] = new ValidationError(ValidationError::NAME_EXISTS_SUL);
111			}
112
113			// username is numbers
114			if (preg_match("/^[0-9]+$/", $request->getName()) === 1) {
115			$errorList[ValidationError::NAME_NUMONLY] = new ValidationError(ValidationError::NAME_NUMONLY);
116			}
117
118			// username can't contain #@/<>[]\|{}
119			if (preg_match("/[" . preg_quote("#@/<>[]\|{}", "/") . "]/", $request->getName()) === 1) {
120			$errorList[ValidationError::NAME_INVALIDCHAR] = new ValidationError(ValidationError::NAME_INVALIDCHAR);
121			}
122
123			// existing non-closed request for this name
124			if ($this->nameRequestExists($request)) {
125			$errorList[ValidationError::OPEN_REQUEST_NAME] = new ValidationError(ValidationError::OPEN_REQUEST_NAME);
126			}
127
128			return $errorList;
129			}
130
131			/**
132			* Summary of validateEmail
133			*
134			* @param Request $request
135			* @param string $emailConfirmation
136			*
137			* @return ValidationError[]
138			*/
139			public function validateEmail(Request $request, $emailConfirmation)
140			{
141			$errorList = array();
142
143			// ERRORS
144
145			// email addresses must match
146			if ($request->getEmail() != $emailConfirmation) {
147			$errorList[ValidationError::EMAIL_MISMATCH] = new ValidationError(ValidationError::EMAIL_MISMATCH);
148			}
149
150			// email address must be validly formed
151			if (trim($request->getEmail()) == "") {
152			$errorList[ValidationError::EMAIL_EMPTY] = new ValidationError(ValidationError::EMAIL_EMPTY);
153			}
154
155			// email address must be validly formed
156			if (!filter_var($request->getEmail(), FILTER_VALIDATE_EMAIL)) {
157			if (trim($request->getEmail()) != "") {
158			$errorList[ValidationError::EMAIL_INVALID] = new ValidationError(ValidationError::EMAIL_INVALID);
159			}
160			}
161
162			// email address can't be wikimedia/wikipedia .com/org
163			if (preg_match('/.@.wiki(m.dia\|p.dia)\.(org\|com)/i', $request->getEmail()) === 1) {
164			$errorList[ValidationError::EMAIL_WIKIMEDIA] = new ValidationError(ValidationError::EMAIL_WIKIMEDIA);
165			}
166
167			return $errorList;
168			}
169
170			/**
171			* Summary of validateOther
172			*
173			* @param Request $request
174			*
175			* @return ValidationError[]
176			*/
177			public function validateOther(Request $request)
178			{
179			$errorList = array();
180
181			$trustedIp = $this->xffTrustProvider->getTrustedClientIp($request->getIp(),
182			$request->getForwardedIp());
183
184			// ERRORS
185
186			// TOR nodes
187			if ($this->torExitProvider->isTorExit($trustedIp)) {
188			$errorList[ValidationError::BANNED] = new ValidationError(ValidationError::BANNED_TOR);
189			}
190
191			// Bans
192			if ($this->banHelper->isBlockBanned($request)) {
193			$errorList[ValidationError::BANNED] = new ValidationError(ValidationError::BANNED);
194			}
195
196			return $errorList;
197			}
198
199			public function postSaveValidations(Request $request)
200			{
201			// Antispoof check
202			$this->checkAntiSpoof($request);
203
204			// Blacklist check
205			$this->checkTitleBlacklist($request);
206
207			$bans = $this->banHelper->getBans($request);
208
209			foreach ($bans as $ban) {
210			if ($ban->getAction() == Ban::ACTION_DROP) {
211			$request->setStatus(RequestStatus::CLOSED);
212			$request->save();
213
214			Logger::closeRequest($request->getDatabase(), $request, 0, null);
215
216			$comment = new Comment();
217			$comment->setDatabase($this->database);
218			$comment->setRequest($request->getId());
219			$comment->setVisibility('user');
220			$comment->setUser(null);
221
222			$comment->setComment('Request dropped automatically due to matching rule.');
223			$comment->save();
224			}
225
226			if ($ban->getAction() == Ban::ACTION_DEFER) {
227			$this->deferRequest($request, $ban->getActionTarget(), 'Request deferred automatically due to matching rule.');
228			}
229			}
230			}
231
232			private function checkAntiSpoof(Request $request)
233			{
234			try {
235			if (count($this->antiSpoofProvider->getSpoofs($request->getName())) > 0) {
236			// If there were spoofs an Admin should handle the request.
237			$this->deferRequest($request, 'Flagged users',
238			'Request automatically deferred to flagged users due to AntiSpoof hit');
239			}
240			}
241			catch (Exception $ex) {
242			// logme
243			}
244			}
245
246			private function checkTitleBlacklist(Request $request)
247			{
248			if ($this->titleBlacklistEnabled == 1) {
249			$apiResult = $this->httpHelper->get(
250			$this->mediawikiApiEndpoint,
251			array(
252			'action' => 'titleblacklist',
253			'tbtitle' => $request->getName(),
254			'tbaction' => 'new-account',
255			'tbnooverride' => true,
256			'format' => 'php',
257			)
258			);
259
260			$data = unserialize($apiResult);
261
262			$requestIsOk = $data['titleblacklist']['result'] == "ok";
263
264			if (!$requestIsOk) {
265			$this->deferRequest($request, 'Flagged users',
266			'Request automatically deferred to flagged users due to title blacklist hit');
267			}
268			}
269			}
270
271			private function userExists(Request $request)
272			{
273			$userExists = $this->httpHelper->get(
274			$this->mediawikiApiEndpoint,
275			array(
276			'action' => 'query',
277			'list' => 'users',
278			'ususers' => $request->getName(),
279			'format' => 'php',
280			)
281			);
282
283			$ue = unserialize($userExists);
284			if (!isset ($ue['query']['users']['0']['missing']) && isset ($ue['query']['users']['0']['userid'])) {
285			return true;
286			}
287
288			return false;
289			}
290
291			private function userSulExists(Request $request)
292			{
293			$requestName = $request->getName();
294
295			$userExists = $this->httpHelper->get(
296			$this->mediawikiApiEndpoint,
297			array(
298			'action' => 'query',
299			'meta' => 'globaluserinfo',
300			'guiuser' => $requestName,
301			'format' => 'php',
302			)
303			);
304
305			$ue = unserialize($userExists);
306			if (isset ($ue['query']['globaluserinfo']['id'])) {
307			return true;
308			}
309
310			return false;
311			}
312
313			/**
314			* Checks if a request with this name is currently open
315			*
316			* @param Request $request
317			*
318			* @return bool
319			*/
320			private function nameRequestExists(Request $request)
321			{
322			$query = "SELECT COUNT(id) FROM request WHERE status != 'Closed' AND name = :name;";
323			$statement = $this->database->prepare($query);
324			$statement->execute(array(':name' => $request->getName()));
325
326			if (!$statement) {
327			return false;
328			}
329
330			return $statement->fetchColumn() > 0;
331			}
332
333			private function deferRequest(Request $request, $targetQueue, $deferComment): void
334			{
335			$request->setStatus($targetQueue);
336			$request->save();
337
338			$logTarget = $this->siteConfiguration->getRequestStates()[$targetQueue]['defertolog'];
339
340			Logger::deferRequest($this->database, $request, $logTarget);
341
342			$comment = new Comment();
343			$comment->setDatabase($this->database);
344			$comment->setRequest($request->getId());
345			$comment->setVisibility('user');
346			$comment->setUser(null);
347
348			$comment->setComment($deferComment);
349			$comment->save();
350			}
351			}
352

enwikipedia-acc / waca

Pull Request — bugsquish (#574)

RequestValidationHelper::validateEmail() A

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