Cas10Controller::validate() - Code Metrics - Inspection of "SSP-2066_add_routes_and_controllers (#45)" - simplesamlphp/simplesamlphp-module-casserver - Measure and Improve Code Quality continuously with Scrutinizer

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by Tim

created 2025-01-24 17:18 UTC

Cas10Controller::validate() C

↳ Parent: Cas10Controller

Complexity

Conditions	13
Paths	22

Size

Total Lines	81
Code Lines	46

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	46
dl	0
loc	81
rs	6.6166
c	1
b	0
f	0
cc	13
nc	22
nop	4

How to fix Long Method Complexity

<?php

declare(strict_types=1);

namespace SimpleSAML\Module\casserver\Controller;

use SimpleSAML\Configuration;
use SimpleSAML\Logger;
use SimpleSAML\Module;
use SimpleSAML\Module\casserver\Cas\Factories\TicketFactory;
use SimpleSAML\Module\casserver\Cas\Protocol\Cas10;
use SimpleSAML\Module\casserver\Cas\Ticket\TicketStore;
use SimpleSAML\Module\casserver\Controller\Traits\UrlTrait;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Attribute\AsController;
use Symfony\Component\HttpKernel\Attribute\MapQueryParameter;

#[AsController]
class Cas10Controller
{
    use UrlTrait;


    /** @var Logger */
    protected Logger $logger;

    /** @var Configuration */
    protected Configuration $casConfig;

    /** @var Cas10 */
    protected Cas10 $cas10Protocol;

    /** @var TicketFactory */
    protected TicketFactory $ticketFactory;

    /** @var TicketStore */
    protected TicketStore $ticketStore;

    /**
     * @param   Configuration       $sspConfig
     * @param   Configuration|null  $casConfig
     * @param   TicketStore|null    $ticketStore
     *
     * @throws \Exception
     */
    public function __construct(
        private readonly Configuration $sspConfig,
        Configuration $casConfig = null,
        TicketStore $ticketStore = null,
    ) {
        // We are using this work around in order to bypass Symfony's autowiring for cas configuration. Since
        // the configuration class is the same, it loads the ssp configuration twice. Still, we need the constructor
        // argument in order to facilitate testin.
        $this->casConfig = ($casConfig === null || $casConfig === $sspConfig)
            ? Configuration::getConfig('module_casserver.php') : $casConfig;
        $this->cas10Protocol = new Cas10($this->casConfig);
        /* Instantiate ticket factory */
        $this->ticketFactory = new TicketFactory($this->casConfig);
        /* Instantiate ticket store */
        $ticketStoreConfig = $this->casConfig->getOptionalValue(
            'ticketstore',
            ['class' => 'casserver:FileSystemTicketStore'],
        );
        $ticketStoreClass = Module::resolveClass($ticketStoreConfig['class'], 'Cas\Ticket');
        $this->ticketStore = $ticketStore ?? new $ticketStoreClass($this->casConfig);
    }

    /**
     * @param   Request      $request
     * @param   bool  $renew  [OPTIONAL] - if this parameter is set, ticket validation will only succeed
     *                        if the service ticket was issued from the presentation of the user’s primary credentials.
     *                        It will fail if the ticket was issued from a single sign-on session.
     * @param   string|null  $ticket  [REQUIRED] - the service ticket issued by /login.
     * @param   string|null  $service [REQUIRED] - the identifier of the service for which the ticket was issued
     *
     * @return Response
     */
    public function validate(
        Request $request,
        #[MapQueryParameter] ?string $ticket = null,
        #[MapQueryParameter] bool $renew = false,
        #[MapQueryParameter] ?string $service = null,
    ): Response {
        $forceAuthn = $renew;
        // Check if any of the required query parameters are missing
        // Even though we can delegate the check to Symfony's `MapQueryParameter` we cannot return
        // the failure response needed. As a result, we allow a default value, and we handle the missing
        // values afterward.
        if ($service === null || $ticket === null) {
            $messagePostfix = $service === null ? 'service' : 'ticket';
            Logger::debug("casserver: Missing service parameter: [{$messagePostfix}]");
            return new Response(
                $this->cas10Protocol->getValidateFailureResponse(),
                Response::HTTP_BAD_REQUEST,
            );
        }

        try {
            // Get the service ticket
            // `getTicket` uses the unserializable method and Objects may throw Throwables in their
            // unserialization handlers.
            $serviceTicket = $this->ticketStore->getTicket($ticket);
            // Delete the ticket
            $this->ticketStore->deleteTicket($ticket);
        } catch (\Exception $e) {
            Logger::error('casserver:validate: internal server error. ' . var_export($e->getMessage(), true));
            return new Response(
                $this->cas10Protocol->getValidateFailureResponse(),
                Response::HTTP_INTERNAL_SERVER_ERROR,
            );
        }

        $failed = false;
        $message = '';
        if (empty($serviceTicket)) {
            // No ticket
            $message = 'ticket: ' . var_export($ticket, true) . ' not recognized';
            $failed = true;
        } elseif (!$this->ticketFactory->isServiceTicket($serviceTicket)) {
            // This is not a service ticket
            $message = 'ticket: ' . var_export($ticket, true) . ' is not a service ticket';
            $failed = true;
        } elseif ($this->ticketFactory->isExpired($serviceTicket)) {
            // the ticket has expired
            $message = 'Ticket has ' . var_export($ticket, true) . ' expired';
            $failed = true;
        } elseif ($this->sanitize($serviceTicket['service']) !== $this->sanitize($service)) {
            // The service url we passed to the query parameters does not match the one in the ticket.
            $message = 'Mismatching service parameters: expected ' .
                var_export($serviceTicket['service'], true) .
                ' but was: ' . var_export($service, true);
            $failed = true;
        } elseif ($forceAuthn && !$serviceTicket['forceAuthn']) {
            // If `forceAuthn` is required but not set in the ticket
            $message = 'Ticket was issued from single sign on session';
            $failed = true;
        }

        if ($failed) {
            Logger::error('casserver:validate: ' . $message);
            return new Response(
                $this->cas10Protocol->getValidateFailureResponse(),
                Response::HTTP_BAD_REQUEST,
            );
        }

        // Fail if the username is not present in the ticket
        if (empty($serviceTicket['userName'])) {
            return new Response(
                $this->cas10Protocol->getValidateFailureResponse(),
                Response::HTTP_BAD_REQUEST,
            );
        }

        // Successful validation
        return new Response(
            $this->cas10Protocol->getValidateSuccessResponse($serviceTicket['userName']),
            Response::HTTP_OK,
        );
    }

    /**
     * Used by the unit tests
     *
     * @return TicketStore
     */
    public function getTicketStore(): TicketStore
    {
        return $this->ticketStore;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace SimpleSAML\Module\casserver\Controller;
6
7			use SimpleSAML\Configuration;
8			use SimpleSAML\Logger;
9			use SimpleSAML\Module;
10			use SimpleSAML\Module\casserver\Cas\Factories\TicketFactory;
11			use SimpleSAML\Module\casserver\Cas\Protocol\Cas10;
12			use SimpleSAML\Module\casserver\Cas\Ticket\TicketStore;
13			use SimpleSAML\Module\casserver\Controller\Traits\UrlTrait;
14			use Symfony\Component\HttpFoundation\Request;
15			use Symfony\Component\HttpFoundation\Response;
16			use Symfony\Component\HttpKernel\Attribute\AsController;
17			use Symfony\Component\HttpKernel\Attribute\MapQueryParameter;
18
19			#[AsController]
20			class Cas10Controller
21			{
22			use UrlTrait;
			1 ignored issue – show introduced 2024-11-19 18:22 UTC by Report Bug Copy Issue Report The trait `SimpleSAML\Module\casser...troller\Traits\UrlTrait` requires some properties which are not provided by `SimpleSAML\Module\casser...troller\Cas10Controller`: `$query`, `$request` Loading history...
23
24			/** @var Logger */
25			protected Logger $logger;
26
27			/** @var Configuration */
28			protected Configuration $casConfig;
29
30			/** @var Cas10 */
31			protected Cas10 $cas10Protocol;
32
33			/** @var TicketFactory */
34			protected TicketFactory $ticketFactory;
35
36			/** @var TicketStore */
37			protected TicketStore $ticketStore;
38
39			/**
40			* @param Configuration $sspConfig
41			* @param Configuration\|null $casConfig
42			* @param TicketStore\|null $ticketStore
43			*
44			* @throws \Exception
45			*/
46			public function __construct(
47			private readonly Configuration $sspConfig,
48			Configuration $casConfig = null,
49			TicketStore $ticketStore = null,
50			) {
51			// We are using this work around in order to bypass Symfony's autowiring for cas configuration. Since
52			// the configuration class is the same, it loads the ssp configuration twice. Still, we need the constructor
53			// argument in order to facilitate testin.
54			$this->casConfig = ($casConfig === null \|\| $casConfig === $sspConfig)
55			? Configuration::getConfig('module_casserver.php') : $casConfig;
56			$this->cas10Protocol = new Cas10($this->casConfig);
57			/* Instantiate ticket factory */
58			$this->ticketFactory = new TicketFactory($this->casConfig);
59			/* Instantiate ticket store */
60			$ticketStoreConfig = $this->casConfig->getOptionalValue(
61			'ticketstore',
62			['class' => 'casserver:FileSystemTicketStore'],
63			);
64			$ticketStoreClass = Module::resolveClass($ticketStoreConfig['class'], 'Cas\Ticket');
65			$this->ticketStore = $ticketStore ?? new $ticketStoreClass($this->casConfig);
66			}
67
68			/**
69			* @param Request $request
70			* @param bool $renew [OPTIONAL] - if this parameter is set, ticket validation will only succeed
71			* if the service ticket was issued from the presentation of the user’s primary credentials.
72			* It will fail if the ticket was issued from a single sign-on session.
73			* @param string\|null $ticket [REQUIRED] - the service ticket issued by /login.
74			* @param string\|null $service [REQUIRED] - the identifier of the service for which the ticket was issued
75			*
76			* @return Response
77			*/
78			public function validate(
79			Request $request,
80			#[MapQueryParameter] ?string $ticket = null,
81			#[MapQueryParameter] bool $renew = false,
82			#[MapQueryParameter] ?string $service = null,
83			): Response {
84			$forceAuthn = $renew;
85			// Check if any of the required query parameters are missing
86			// Even though we can delegate the check to Symfony's `MapQueryParameter` we cannot return
87			// the failure response needed. As a result, we allow a default value, and we handle the missing
88			// values afterward.
89			if ($service === null \|\| $ticket === null) {
90			$messagePostfix = $service === null ? 'service' : 'ticket';
91			Logger::debug("casserver: Missing service parameter: [{$messagePostfix}]");
92			return new Response(
93			$this->cas10Protocol->getValidateFailureResponse(),
94			Response::HTTP_BAD_REQUEST,
95			);
96			}
97
98			try {
99			// Get the service ticket
100			// `getTicket` uses the unserializable method and Objects may throw Throwables in their
101			// unserialization handlers.
102			$serviceTicket = $this->ticketStore->getTicket($ticket);
103			// Delete the ticket
104			$this->ticketStore->deleteTicket($ticket);
105			} catch (\Exception $e) {
106			Logger::error('casserver:validate: internal server error. ' . var_export($e->getMessage(), true));
107			return new Response(
108			$this->cas10Protocol->getValidateFailureResponse(),
109			Response::HTTP_INTERNAL_SERVER_ERROR,
110			);
111			}
112
113			$failed = false;
114			$message = '';
115			if (empty($serviceTicket)) {
116			// No ticket
117			$message = 'ticket: ' . var_export($ticket, true) . ' not recognized';
118			$failed = true;
119			} elseif (!$this->ticketFactory->isServiceTicket($serviceTicket)) {
120			// This is not a service ticket
121			$message = 'ticket: ' . var_export($ticket, true) . ' is not a service ticket';
122			$failed = true;
123			} elseif ($this->ticketFactory->isExpired($serviceTicket)) {
124			// the ticket has expired
125			$message = 'Ticket has ' . var_export($ticket, true) . ' expired';
126			$failed = true;
127			} elseif ($this->sanitize($serviceTicket['service']) !== $this->sanitize($service)) {
128			// The service url we passed to the query parameters does not match the one in the ticket.
129			$message = 'Mismatching service parameters: expected ' .
130			var_export($serviceTicket['service'], true) .
131			' but was: ' . var_export($service, true);
132			$failed = true;
133			} elseif ($forceAuthn && !$serviceTicket['forceAuthn']) {
134			// If `forceAuthn` is required but not set in the ticket
135			$message = 'Ticket was issued from single sign on session';
136			$failed = true;
137			}
138
139			if ($failed) {
140			Logger::error('casserver:validate: ' . $message);
141			return new Response(
142			$this->cas10Protocol->getValidateFailureResponse(),
143			Response::HTTP_BAD_REQUEST,
144			);
145			}
146
147			// Fail if the username is not present in the ticket
148			if (empty($serviceTicket['userName'])) {
149			return new Response(
150			$this->cas10Protocol->getValidateFailureResponse(),
151			Response::HTTP_BAD_REQUEST,
152			);
153			}
154
155			// Successful validation
156			return new Response(
157			$this->cas10Protocol->getValidateSuccessResponse($serviceTicket['userName']),
158			Response::HTTP_OK,
159			);
160			}
161
162			/**
163			* Used by the unit tests
164			*
165			* @return TicketStore
166			*/
167			public function getTicketStore(): TicketStore
168			{
169			return $this->ticketStore;
170			}
171			}
172

simplesamlphp / simplesamlphp-module-casserver

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Cas10Controller::validate() C

Complexity

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Duplication

Importance

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