AttributeAddUsersGroups::search() - Code Metrics - Inspection of "WIP: Migrate to symfony/ldap" - simplesamlphp/simplesamlphp-module-ldap - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#28)

by Tim

created 2021-09-06 12:07 UTC

AttributeAddUsersGroups::search() B

↳ Parent: Project

Complexity

Conditions	11
Paths	16

Size

Total Lines	65
Code Lines	30

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	11
eloc	30
c	1
b	0
f	0
nc	16
nop	1
dl	0
loc	65
rs	7.3166

How to fix Long Method Complexity

<?php

/**
 * Does a reverse membership lookup on the logged in user,
 * looking for groups it is a member of and adds them to
 * a defined attribute, in DN format.
 *
 * @package SimpleSAMLphp
 */

declare(strict_types=1);

namespace SimpleSAML\Module\ldap\Auth\Process;

use SimpleSAML\Assert\Assert;
use SimpleSAML\Error;
use SimpleSAML\Logger;
use SimpleSAML\Module\ldap\Utils\Ldap as LdapUtils;
use SimpleSAML\Utils;

class AttributeAddUsersGroups extends BaseFilter
{
    /** @var string */
    protected string $searchUsername;

    /** @var string */
    protected string $searchPassword;

    /** @var string */
    protected string $product;


    /**
     * Initialize this filter.
     *
     * @param array $config Configuration information about this filter.
     * @param mixed $reserved For future use.
     */
    public function __construct(array $config, $reserved)
    {
        parent::__construct($config, $reserved);

        // Get filter specific config options
        $this->searchUsername = $this->config->getString('search.username');
        $this->searchPassword = $this->config->getString('search.password', null);
        $this->product = $this->config->getString('product', 'ActiveDirectory');
    }


    /**
     * LDAP search filters to be added to the base filters for this authproc-filter.
     * It's an array of key => value pairs that will be translated to (key=value) in the ldap query.
     *
     * @var array
     */
    protected array $additional_filters;


    /**
     * This is run when the filter is processed by SimpleSAML.
     * It will attempt to find the current users groups using
     * the best method possible for the LDAP product. The groups
     * are then added to the request attributes.
     *
     * @throws \SimpleSAML\Error\Exception
     * @param array $request
     */
    public function process(array &$request): void
    {
        Assert::keyExists($request, 'Attributes');

        // Log the process
        Logger::debug(
            $this->title . 'Attempting to get the users groups...'
        );

        $this->additional_filters = $this->config->getArray('additional_filters', []);

        // Reference the attributes, just to make the names shorter
        $attributes = &$request['Attributes'];
        $map = &$this->attribute_map;
        $distinguishedName = $attributes[$map['dn']][0];

        // Get the users groups from LDAP
        $groups = $this->getGroups($distinguishedName);

        // Make the array if it is not set already
        if (!isset($attributes[$map['groups']])) {
            $attributes[$map['groups']] = [];
        }

        // Must be an array, else cannot merge groups
        if (!is_array($attributes[$map['groups']])) {
            throw new Error\Exception(
                sprintf(
                    '%sThe group attribute [%s] is not an array of group DNs. %s',
                    $this->title, $map['groups'];

                    $this->varExport($attributes[$map['groups']])
                )
            );
        }

        // Add the users group(s)
        $group_attribute = &$attributes[$map['groups']];
        $group_attribute = array_merge($group_attribute, $groups);
        $group_attribute = array_unique($group_attribute);

        // All done
        Logger::debug(
            sprintf(
                '%sAdded users groups to the group attribute[%s]: %s',
                $this->title,
                $map['groups'],
                implode('; ', $groups)
            )
        );
    }


    /**
     * Will perform a search using the required attribute values from the user to
     * get their group membership, recursively.
     *
     * @throws \SimpleSAML\Error\Exception
     * @param array $attributes
     * @return array
     */
    protected function getGroups(array $attributes): array
    {
        // Log the request
        Logger::debug(
            $this->title . 'Checking for groups based on the best method for the LDAP product.'
        );

        $ldapUtils = new LdapUtils();
        $ldap = $ldapUtils->bind($this->ldapServers, $this->searchUsername, $this->searchPassword);

        // Based on the directory service, search LDAP for groups
        // If any attributes are needed, prepare them before calling search method
        switch ($this->product) {
            case 'ACTIVEDIRECTORY':
                $groups = $this->getGroupsActiveDirectory($attributes);
                break;
            case 'OPENLDAP':
                $groups = $this->getGroupsOpenLdap($attributes);
                break;
            default:
                // Reference the map, just to make the name shorter
                $map = &$this->attribute_map;

                // Log the general search
                Logger::debug(
                    $this->title . 'Searching LDAP using the default search method.'
                );

                // Make sure the defined memberOf attribute exists
                if (!isset($attributes[$map['memberof']])) {
                    throw new Error\Exception(
                        $this->title . 'The memberof attribute [' . $map['memberof'] .
                        '] is not defined in the user\'s Attributes: ' . implode(', ', array_keys($attributes))
                    );
                }

                // MemberOf must be an array of group DN's
                if (!is_array($attributes[$map['memberof']])) {
                    throw new Error\Exception(
                        $this->title . 'The memberof attribute [' . $map['memberof'] .
                        '] is not an array of group DNs. ' . $this->varExport($attributes[$map['memberof']])
                    );
                }

                // Search for the users group membership, recursively
                $groups = $this->search($attributes[$map['memberof']]);
        }

        // All done
        Logger::debug(
            $this->title . 'User found to be a member of the groups:' . implode('; ', $groups)
        );
        return $groups;
    }


    /**
     * OpenLDAP optimized search
     * using the required attribute values from the user to
     * get their group membership, recursively.
     *
     * @throws \SimpleSAML\Error\Exception
     * @param array $attributes
     * @return array
     */
    protected function getGroupsOpenLdap(array $attributes): array
    {
        // Log the OpenLDAP specific search
        Logger::debug(
            $this->title . 'Searching LDAP using OpenLDAP specific method.'
        );

        // Reference the map, just to make the name shorter
        $map = &$this->attribute_map;

        // Print group search string and search for all group names
        $openldap_base = $this->config->getString('ldap.basedn', 'ou=groups,dc=example,dc=com');
        Logger::debug(
            $this->title . "Searching for groups in ldap.basedn " . $openldap_base . " with filter (" .
            $map['memberof'] . "=" . $attributes[$map['username']][0] . ") and attributes " . $map['member']
        );

        $username   = $this->config->getString('search.username');
        $password   = $this->config->getString('search.password', null);

        $ldapUtils = new LdapUtils();
        $ldapUtils->bind($this->ldap, $username, $password);

        $groups = [];
        try {
            /* Intention is to filter in 'ou=groups,dc=example,dc=com' for
             * '(memberUid = <value of attribute.username>)' and take only the attributes 'cn' (=name of the group)
             */
            $all_groups = $ldapUtils->searchForMultiple(
                $openldap_base,
                array_merge(
                    [
                        $map['memberof'] => $attributes[$map['username']][0]
                    ],
                    $this->additional_filters
                ),
                [$map['return']]
            );
        } catch (Error\UserNotFound $e) {
            return $groups; // if no groups found return with empty (still just initialized) groups array
        }

        // run through all groups and add each to our groups array
        foreach ($all_groups as $group_entry) {
            $groups[] = $group_entry[$map['return']][0];
        }

        return $groups;
    }


    /**
     * Active Directory optimized search
     * using the required attribute values from the user to
     * get their group membership, recursively.
     *
     * @throws \SimpleSAML\Error\Exception
     * @param array $attributes
     * @return array
     */
    protected function getGroupsActiveDirectory(array $attributes): array
    {
        // Log the AD specific search
        Logger::debug(
            $this->title . 'Searching LDAP using ActiveDirectory specific method.'
        );

        // Reference the map, just to make the name shorter
        $map = &$this->attribute_map;

        // Make sure the defined dn attribute exists
        if (!isset($attributes[$map['dn']])) {
            throw new Error\Exception(
                $this->title . 'The DN attribute [' . $map['dn'] .
                '] is not defined in the user\'s Attributes: ' . implode(', ', array_keys($attributes))
            );
        }

        // DN attribute must have a value
        if (!isset($attributes[$map['dn']][0]) || !$attributes[$map['dn']][0]) {
            throw new Error\Exception(
                $this->title . 'The DN attribute [' . $map['dn'] .
                '] does not have a [0] value defined. ' . $this->varExport($attributes[$map['dn']])
            );
        }

        // Pass to the AD specific search
        return $this->searchActiveDirectory($attributes[$map['dn']][0]);
    }


    /**
     * Looks for groups from the list of DN's passed. Also
     * recursively searches groups for further membership.
     * Avoids loops by only searching a DN once. Returns
     * the list of groups found.
     *
     * @param array $memberof
     * @return array
     */
    protected function search(array $memberof): array
    {
        // Used to determine what DN's have already been searched
        static $searched = [];

        // Init the groups variable
        $groups = [];

        // Shorten the variable name
        $map = &$this->attribute_map;

        // Log the search
        Logger::debug(
            $this->title . 'Checking DNs for groups.' .
            ' DNs: ' . implode('; ', $memberof) .
            ' Attributes: ' . $map['memberof'] . ', ' . $map['type'] .
            ' Group Type: ' . $this->type_map['group']
        );

        // Work out what attributes to get for a group
        $use_group_name = false;
        $get_attributes = [$map['memberof'], $map['type']];
        if (isset($map['name']) && $map['name']) {
            $get_attributes[] = $map['name'];
            $use_group_name = true;
        }

        // Check each DN of the passed memberOf
        foreach ($memberof as $dn) {
            // Avoid infinite loops, only need to check a DN once
            if (isset($searched[$dn])) {
                continue;
            }

            // Track all DN's that are searched
            // Use DN for key as well, isset() is faster than in_array()
            $searched[$dn] = $dn;

            // Query LDAP for the attribute values for the DN
            try {
                $attributes = $this->getLdap()->getAttributes($dn, $get_attributes);
            } catch (Error\AuthSource $e) {
                continue; // DN must not exist, just continue. Logged by the LDAP object
            }

            // Only look for groups
            if (!in_array($this->type_map['group'], $attributes[$map['type']], true)) {
                continue;
            }

            // Add to found groups array
            if ($use_group_name && isset($attributes[$map['name']]) && is_array($attributes[$map['name']])) {
                $groups[] = $attributes[$map['name']][0];
            } else {
                $groups[] = $dn;
            }

            // Recursively search "sub" groups
            if (!empty($attributes[$map['memberof']])) {
                $groups = array_merge($groups, $this->search($attributes[$map['memberof']]));
            }
        }

        // Return only the unique group names
        return array_unique($groups);
    }


    /**
     * Searches LDAP using a ActiveDirectory specific filter,
     * looking for group membership for the users DN. Returns
     * the list of group DNs retrieved.
     *
     * @param string $dn
     * @return array
     */
    protected function searchActiveDirectory(string $dn): array
    {
        $arrayUtils = new Utils\Arrays();

        // Shorten the variable name
        $map = &$this->attribute_map;

        // Log the search
        Logger::debug(
            $this->title . 'Searching ActiveDirectory group membership.' .
            ' DN: ' . $dn .
            ' DN Attribute: ' . $map['dn'] .
            ' Return Attribute: ' . $map['return'] .
            ' Member Attribute: ' . $map['member'] .
            ' Type Attribute: ' . $map['type'] .
            ' Type Value: ' . $this->type_map['group'] .
            ' Base: ' . implode('; ', $arrayUtils->arrayize($this->base_dn))
        );

        // AD connections should have this set
        $this->getLdap()->setOption(LDAP_OPT_REFERRALS, 0);

        // Search AD with the specific recursive flag
        try {
            $entries = $this->getLdap()->searchformultiple(
                $this->base_dn,
                array_merge(
                    [
                        $map['type'] => $this->type_map['group'],
                        $map['member'] . ':1.2.840.113556.1.4.1941:' => $dn
                    ],
                    $this->additional_filters
                ),
                [$map['return']]
            );

        // The search may throw an exception if no entries
        // are found, unlikely but possible.
        } catch (Error\UserNotFound $e) {
            return [];
        }

        //Init the groups
        $groups = [];

        // Check each entry..
        foreach ($entries as $entry) {
            // Check for the DN using the original attribute name
            if (isset($entry[$map['return']][0])) {
                $groups[] = $entry[$map['return']][0];
                continue;
            }

            // Sometimes the returned attribute names are lowercase
            if (isset($entry[strtolower($map['return'])][0])) {
                $groups[] = $entry[strtolower($map['return'])][0];
                continue;
            }

            // AD queries also seem to return the objects dn by default
            if (isset($entry['return'])) {
                $groups[] = $entry['return'];
                continue;
            }

            // Could not find DN, log and continue
            Logger::notice(
                $this->title . 'The return attribute [' .
                implode(', ', [$map['return'], strtolower($map['return'])]) .
                '] could not be found in the entry. ' . $this->varExport($entry)
            );
        }

        // All done
        return $groups;
    }
}


1			<?php
2
3			/**
4			* Does a reverse membership lookup on the logged in user,
5			* looking for groups it is a member of and adds them to
6			* a defined attribute, in DN format.
7			*
8			* @package SimpleSAMLphp
9			*/
10
11			declare(strict_types=1);
12
13			namespace SimpleSAML\Module\ldap\Auth\Process;
14
15			use SimpleSAML\Assert\Assert;
16			use SimpleSAML\Error;
17			use SimpleSAML\Logger;
18			use SimpleSAML\Module\ldap\Utils\Ldap as LdapUtils;
19			use SimpleSAML\Utils;
20
21			class AttributeAddUsersGroups extends BaseFilter
22			{
23			/** @var string */
24			protected string $searchUsername;
25
26			/** @var string */
27			protected string $searchPassword;
28
29			/** @var string */
30			protected string $product;
31
32
33			/**
34			* Initialize this filter.
35			*
36			* @param array $config Configuration information about this filter.
37			* @param mixed $reserved For future use.
38			*/
39			public function __construct(array $config, $reserved)
40			{
41			parent::__construct($config, $reserved);
42
43			// Get filter specific config options
44			$this->searchUsername = $this->config->getString('search.username');
45			$this->searchPassword = $this->config->getString('search.password', null);
46			$this->product = $this->config->getString('product', 'ActiveDirectory');
47			}
48
49
50			/**
51			* LDAP search filters to be added to the base filters for this authproc-filter.
52			* It's an array of key => value pairs that will be translated to (key=value) in the ldap query.
53			*
54			* @var array
55			*/
56			protected array $additional_filters;
57
58
59			/**
60			* This is run when the filter is processed by SimpleSAML.
61			* It will attempt to find the current users groups using
62			* the best method possible for the LDAP product. The groups
63			* are then added to the request attributes.
64			*
65			* @throws \SimpleSAML\Error\Exception
66			* @param array $request
67			*/
68			public function process(array &$request): void
69			{
70			Assert::keyExists($request, 'Attributes');
71
72			// Log the process
73			Logger::debug(
74			$this->title . 'Attempting to get the users groups...'
75			);
76
77			$this->additional_filters = $this->config->getArray('additional_filters', []);
78
79			// Reference the attributes, just to make the names shorter
80			$attributes = &$request['Attributes'];
81			$map = &$this->attribute_map;
82			$distinguishedName = $attributes[$map['dn']][0];
83
84			// Get the users groups from LDAP
85			$groups = $this->getGroups($distinguishedName);
86
87			// Make the array if it is not set already
88			if (!isset($attributes[$map['groups']])) {
89			$attributes[$map['groups']] = [];
90			}
91
92			// Must be an array, else cannot merge groups
93			if (!is_array($attributes[$map['groups']])) {
94			throw new Error\Exception(
95			sprintf(
96			'%sThe group attribute [%s] is not an array of group DNs. %s',
97			$this->title, $map['groups'];
			0 ignored issues – show Bug introduced 2021-09-06 12:07 UTC by Report Bug Copy Issue Report A parse error occurred: Syntax error, unexpected ';', expecting ',' or ')' on line 97 at column 48 Loading history...
98			$this->varExport($attributes[$map['groups']])
99			)
100			);
101			}
102
103			// Add the users group(s)
104			$group_attribute = &$attributes[$map['groups']];
105			$group_attribute = array_merge($group_attribute, $groups);
106			$group_attribute = array_unique($group_attribute);
107
108			// All done
109			Logger::debug(
110			sprintf(
111			'%sAdded users groups to the group attribute[%s]: %s',
112			$this->title,
113			$map['groups'],
114			implode('; ', $groups)
115			)
116			);
117			}
118
119
120			/**
121			* Will perform a search using the required attribute values from the user to
122			* get their group membership, recursively.
123			*
124			* @throws \SimpleSAML\Error\Exception
125			* @param array $attributes
126			* @return array
127			*/
128			protected function getGroups(array $attributes): array
129			{
130			// Log the request
131			Logger::debug(
132			$this->title . 'Checking for groups based on the best method for the LDAP product.'
133			);
134
135			$ldapUtils = new LdapUtils();
136			$ldap = $ldapUtils->bind($this->ldapServers, $this->searchUsername, $this->searchPassword);
137
138			// Based on the directory service, search LDAP for groups
139			// If any attributes are needed, prepare them before calling search method
140			switch ($this->product) {
141			case 'ACTIVEDIRECTORY':
142			$groups = $this->getGroupsActiveDirectory($attributes);
143			break;
144			case 'OPENLDAP':
145			$groups = $this->getGroupsOpenLdap($attributes);
146			break;
147			default:
148			// Reference the map, just to make the name shorter
149			$map = &$this->attribute_map;
150
151			// Log the general search
152			Logger::debug(
153			$this->title . 'Searching LDAP using the default search method.'
154			);
155
156			// Make sure the defined memberOf attribute exists
157			if (!isset($attributes[$map['memberof']])) {
158			throw new Error\Exception(
159			$this->title . 'The memberof attribute [' . $map['memberof'] .
160			'] is not defined in the user\'s Attributes: ' . implode(', ', array_keys($attributes))
161			);
162			}
163
164			// MemberOf must be an array of group DN's
165			if (!is_array($attributes[$map['memberof']])) {
166			throw new Error\Exception(
167			$this->title . 'The memberof attribute [' . $map['memberof'] .
168			'] is not an array of group DNs. ' . $this->varExport($attributes[$map['memberof']])
169			);
170			}
171
172			// Search for the users group membership, recursively
173			$groups = $this->search($attributes[$map['memberof']]);
174			}
175
176			// All done
177			Logger::debug(
178			$this->title . 'User found to be a member of the groups:' . implode('; ', $groups)
179			);
180			return $groups;
181			}
182
183
184			/**
185			* OpenLDAP optimized search
186			* using the required attribute values from the user to
187			* get their group membership, recursively.
188			*
189			* @throws \SimpleSAML\Error\Exception
190			* @param array $attributes
191			* @return array
192			*/
193			protected function getGroupsOpenLdap(array $attributes): array
194			{
195			// Log the OpenLDAP specific search
196			Logger::debug(
197			$this->title . 'Searching LDAP using OpenLDAP specific method.'
198			);
199
200			// Reference the map, just to make the name shorter
201			$map = &$this->attribute_map;
202
203			// Print group search string and search for all group names
204			$openldap_base = $this->config->getString('ldap.basedn', 'ou=groups,dc=example,dc=com');
205			Logger::debug(
206			$this->title . "Searching for groups in ldap.basedn " . $openldap_base . " with filter (" .
207			$map['memberof'] . "=" . $attributes[$map['username']][0] . ") and attributes " . $map['member']
208			);
209
210			$username = $this->config->getString('search.username');
211			$password = $this->config->getString('search.password', null);
212
213			$ldapUtils = new LdapUtils();
214			$ldapUtils->bind($this->ldap, $username, $password);
215
216			$groups = [];
217			try {
218			/* Intention is to filter in 'ou=groups,dc=example,dc=com' for
219			* '(memberUid = <value of attribute.username>)' and take only the attributes 'cn' (=name of the group)
220			*/
221			$all_groups = $ldapUtils->searchForMultiple(
222			$openldap_base,
223			array_merge(
224			[
225			$map['memberof'] => $attributes[$map['username']][0]
226			],
227			$this->additional_filters
228			),
229			[$map['return']]
230			);
231			} catch (Error\UserNotFound $e) {
232			return $groups; // if no groups found return with empty (still just initialized) groups array
233			}
234
235			// run through all groups and add each to our groups array
236			foreach ($all_groups as $group_entry) {
237			$groups[] = $group_entry[$map['return']][0];
238			}
239
240			return $groups;
241			}
242
243
244			/**
245			* Active Directory optimized search
246			* using the required attribute values from the user to
247			* get their group membership, recursively.
248			*
249			* @throws \SimpleSAML\Error\Exception
250			* @param array $attributes
251			* @return array
252			*/
253			protected function getGroupsActiveDirectory(array $attributes): array
254			{
255			// Log the AD specific search
256			Logger::debug(
257			$this->title . 'Searching LDAP using ActiveDirectory specific method.'
258			);
259
260			// Reference the map, just to make the name shorter
261			$map = &$this->attribute_map;
262
263			// Make sure the defined dn attribute exists
264			if (!isset($attributes[$map['dn']])) {
265			throw new Error\Exception(
266			$this->title . 'The DN attribute [' . $map['dn'] .
267			'] is not defined in the user\'s Attributes: ' . implode(', ', array_keys($attributes))
268			);
269			}
270
271			// DN attribute must have a value
272			if (!isset($attributes[$map['dn']][0]) \|\| !$attributes[$map['dn']][0]) {
273			throw new Error\Exception(
274			$this->title . 'The DN attribute [' . $map['dn'] .
275			'] does not have a [0] value defined. ' . $this->varExport($attributes[$map['dn']])
276			);
277			}
278
279			// Pass to the AD specific search
280			return $this->searchActiveDirectory($attributes[$map['dn']][0]);
281			}
282
283
284			/**
285			* Looks for groups from the list of DN's passed. Also
286			* recursively searches groups for further membership.
287			* Avoids loops by only searching a DN once. Returns
288			* the list of groups found.
289			*
290			* @param array $memberof
291			* @return array
292			*/
293			protected function search(array $memberof): array
294			{
295			// Used to determine what DN's have already been searched
296			static $searched = [];
297
298			// Init the groups variable
299			$groups = [];
300
301			// Shorten the variable name
302			$map = &$this->attribute_map;
303
304			// Log the search
305			Logger::debug(
306			$this->title . 'Checking DNs for groups.' .
307			' DNs: ' . implode('; ', $memberof) .
308			' Attributes: ' . $map['memberof'] . ', ' . $map['type'] .
309			' Group Type: ' . $this->type_map['group']
310			);
311
312			// Work out what attributes to get for a group
313			$use_group_name = false;
314			$get_attributes = [$map['memberof'], $map['type']];
315			if (isset($map['name']) && $map['name']) {
316			$get_attributes[] = $map['name'];
317			$use_group_name = true;
318			}
319
320			// Check each DN of the passed memberOf
321			foreach ($memberof as $dn) {
322			// Avoid infinite loops, only need to check a DN once
323			if (isset($searched[$dn])) {
324			continue;
325			}
326
327			// Track all DN's that are searched
328			// Use DN for key as well, isset() is faster than in_array()
329			$searched[$dn] = $dn;
330
331			// Query LDAP for the attribute values for the DN
332			try {
333			$attributes = $this->getLdap()->getAttributes($dn, $get_attributes);
334			} catch (Error\AuthSource $e) {
335			continue; // DN must not exist, just continue. Logged by the LDAP object
336			}
337
338			// Only look for groups
339			if (!in_array($this->type_map['group'], $attributes[$map['type']], true)) {
340			continue;
341			}
342
343			// Add to found groups array
344			if ($use_group_name && isset($attributes[$map['name']]) && is_array($attributes[$map['name']])) {
345			$groups[] = $attributes[$map['name']][0];
346			} else {
347			$groups[] = $dn;
348			}
349
350			// Recursively search "sub" groups
351			if (!empty($attributes[$map['memberof']])) {
352			$groups = array_merge($groups, $this->search($attributes[$map['memberof']]));
353			}
354			}
355
356			// Return only the unique group names
357			return array_unique($groups);
358			}
359
360
361			/**
362			* Searches LDAP using a ActiveDirectory specific filter,
363			* looking for group membership for the users DN. Returns
364			* the list of group DNs retrieved.
365			*
366			* @param string $dn
367			* @return array
368			*/
369			protected function searchActiveDirectory(string $dn): array
370			{
371			$arrayUtils = new Utils\Arrays();
372
373			// Shorten the variable name
374			$map = &$this->attribute_map;
375
376			// Log the search
377			Logger::debug(
378			$this->title . 'Searching ActiveDirectory group membership.' .
379			' DN: ' . $dn .
380			' DN Attribute: ' . $map['dn'] .
381			' Return Attribute: ' . $map['return'] .
382			' Member Attribute: ' . $map['member'] .
383			' Type Attribute: ' . $map['type'] .
384			' Type Value: ' . $this->type_map['group'] .
385			' Base: ' . implode('; ', $arrayUtils->arrayize($this->base_dn))
386			);
387
388			// AD connections should have this set
389			$this->getLdap()->setOption(LDAP_OPT_REFERRALS, 0);
390
391			// Search AD with the specific recursive flag
392			try {
393			$entries = $this->getLdap()->searchformultiple(
394			$this->base_dn,
395			array_merge(
396			[
397			$map['type'] => $this->type_map['group'],
398			$map['member'] . ':1.2.840.113556.1.4.1941:' => $dn
399			],
400			$this->additional_filters
401			),
402			[$map['return']]
403			);
404
405			// The search may throw an exception if no entries
406			// are found, unlikely but possible.
407			} catch (Error\UserNotFound $e) {
408			return [];
409			}
410
411			//Init the groups
412			$groups = [];
413
414			// Check each entry..
415			foreach ($entries as $entry) {
416			// Check for the DN using the original attribute name
417			if (isset($entry[$map['return']][0])) {
418			$groups[] = $entry[$map['return']][0];
419			continue;
420			}
421
422			// Sometimes the returned attribute names are lowercase
423			if (isset($entry[strtolower($map['return'])][0])) {
424			$groups[] = $entry[strtolower($map['return'])][0];
425			continue;
426			}
427
428			// AD queries also seem to return the objects dn by default
429			if (isset($entry['return'])) {
430			$groups[] = $entry['return'];
431			continue;
432			}
433
434			// Could not find DN, log and continue
435			Logger::notice(
436			$this->title . 'The return attribute [' .
437			implode(', ', [$map['return'], strtolower($map['return'])]) .
438			'] could not be found in the entry. ' . $this->varExport($entry)
439			);
440			}
441
442			// All done
443			return $groups;
444			}
445			}
446

simplesamlphp / simplesamlphp-module-ldap

Pull Request — master (#28)

AttributeAddUsersGroups::search() B

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