Add settings to ignore second display name in search

Signed-off-by: Louis Chemineau <louis@chmn.me>

Author: artonge

apps/settings/lib/Settings/Admin/Sharing.php

@@ -89,7 +89,8 @@ public function getForm() {
 			'restrictUserEnumerationToGroup' => $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_to_group', 'no'),
 			'restrictUserEnumerationToPhone' => $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_to_phone', 'no'),
 			'restrictUserEnumerationFullMatch' => $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_full_match', 'yes'),
-			'restrictUserEnumerationFullMatchUserId' => $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_full_match_userid', 'yes'),
+			'shareeEnumerationFullMatchUserId' => $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_full_match_userid', 'yes'),
+			'shareeEnumerationIgnoreSecondDisplayName' => $this->config->getAppValue('core', 'shareapi_ignore_second_display_name', 'no'),
 			'enforceLinkPassword' => Util::isPublicLinkPasswordRequired(false),
 			'passwordExcludedGroups' => $excludedPasswordGroupsList,
 			'passwordExcludedGroupsFeatureEnabled' => $this->config->getSystemValueBool('sharing.allow_disabled_password_enforcement_groups', false),

apps/settings/templates/settings/admin/sharing.php

@@ -256,6 +256,15 @@
 } ?> />
 			<label for="shareapi_restrict_user_enumeration_full_match_userid"><?php p($l->t('Match username when restricting to full match'));?></label><br />
 		</p>
+		<p id="shareapi_ignore_second_display_name_setting" class="double-indent <?php if ($_['shareAPIEnabled'] === 'no' || $_['restrictUserEnumerationFullMatchUserId'] === 'no') {
+	p('hidden');
+}?>">
+			<input type="checkbox" name="shareapi_ignore_second_display_name" value="1" id="shareapi_ignore_second_display_name" class="checkbox"
+					<?php if ($_['shareeEnumerationIgnoreSecondDisplayName'] === 'yes') {
+	print_unescaped('checked="checked"');
+} ?> />
+			<label for="shareapi_ignore_second_display_name"><?php p($l->t('Ignore second display name in parentheses if any. Example: "First display name (second ignored display name)"'));?></label><br />
+		</p>
 
 		<p>
 			<input type="checkbox" id="publicShareDisclaimer" class="checkbox noJSAutoUpdate"

apps/settings/tests/Settings/Admin/SharingTest.php

@@ -83,6 +83,7 @@ public function testGetFormWithoutExcludedGroups(): void {
 				['core', 'shareapi_restrict_user_enumeration_to_group', 'no', 'no'],
 				['core', 'shareapi_restrict_user_enumeration_to_phone', 'no', 'no'],
 				['core', 'shareapi_restrict_user_enumeration_full_match', 'yes', 'yes'],
+				['core', 'shareapi_ignore_second_display_name', 'yes', 'yes'],
 				['core', 'shareapi_enabled', 'yes', 'yes'],
 				['core', 'shareapi_default_expire_date', 'no', 'no'],
 				['core', 'shareapi_expire_after_n_days', '7', '7'],
@@ -116,6 +117,7 @@ public function testGetFormWithoutExcludedGroups(): void {
 				'restrictUserEnumerationToGroup' => 'no',
 				'restrictUserEnumerationToPhone' => 'no',
 				'restrictUserEnumerationFullMatch' => 'yes',
+				'shareeEnumerationIgnoreSecondDisplayName' => 'yes',
 				'enforceLinkPassword' => false,
 				'onlyShareWithGroupMembers' => false,
 				'shareAPIEnabled' => 'yes',
@@ -158,6 +160,7 @@ public function testGetFormWithExcludedGroups(): void {
 				['core', 'shareapi_restrict_user_enumeration_to_group', 'no', 'no'],
 				['core', 'shareapi_restrict_user_enumeration_to_phone', 'no', 'no'],
 				['core', 'shareapi_restrict_user_enumeration_full_match', 'yes', 'yes'],
+				['core', 'shareapi_ignore_second_display_name', 'yes', 'yes'],
 				['core', 'shareapi_enabled', 'yes', 'yes'],
 				['core', 'shareapi_default_expire_date', 'no', 'no'],
 				['core', 'shareapi_expire_after_n_days', '7', '7'],
@@ -191,6 +194,7 @@ public function testGetFormWithExcludedGroups(): void {
 				'restrictUserEnumerationToGroup' => 'no',
 				'restrictUserEnumerationToPhone' => 'no',
 				'restrictUserEnumerationFullMatch' => 'yes',
+				'shareeEnumerationIgnoreSecondDisplayName' => 'yes',
 				'enforceLinkPassword' => false,
 				'onlyShareWithGroupMembers' => false,
 				'shareAPIEnabled' => 'yes',

build/integration/features/bootstrap/CollaborationContext.php

@@ -123,6 +123,7 @@ protected function resetAppConfigs(): void {
 		$this->deleteServerConfig('core', 'shareapi_restrict_user_enumeration_to_phone');
 		$this->deleteServerConfig('core', 'shareapi_restrict_user_enumeration_full_match');
 		$this->deleteServerConfig('core', 'shareapi_restrict_user_enumeration_full_match_userid');
+		$this->deleteServerConfig('core', 'shareapi_ignore_second_display_name');
 		$this->deleteServerConfig('core', 'shareapi_only_share_with_group_members');
 	}
 

lib/private/Collaboration/Collaborators/UserPlugin.php

@@ -56,6 +56,8 @@ class UserPlugin implements ISearchPlugin {
 	protected $shareeEnumerationFullMatch;
 	/* @var bool */
 	protected $shareeEnumerationFullMatchUserId;
+	/* @var bool */
+	protected $shareeEnumerationIgnoreSecondDisplayName;
 
 	/** @var IConfig */
 	private $config;
@@ -90,6 +92,7 @@ public function __construct(IConfig $config,
 		$this->shareeEnumerationPhone = $this->shareeEnumeration && $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_to_phone', 'no') === 'yes';
 		$this->shareeEnumerationFullMatch = $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_full_match', 'yes') === 'yes';
 		$this->shareeEnumerationFullMatchUserId = $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_full_match_userid', 'yes') === 'yes';
+		$this->shareeEnumerationIgnoreSecondDisplayName = $this->config->getAppValue('core', 'shareapi_ignore_second_display_name', 'no') === 'yes';
 	}
 
 	public function search($search, $limit, $offset, ISearchResult $searchResult) {
@@ -181,6 +184,7 @@ public function search($search, $limit, $offset, ISearchResult $searchResult) {
 				$this->shareeEnumerationFullMatch &&
 				$lowerSearch !== '' && (strtolower($uid) === $lowerSearch ||
 				strtolower($userDisplayName) === $lowerSearch ||
+				($this->shareeEnumerationIgnoreSecondDisplayName && strtolower(preg_replace('/ (.*)$/', '', $userDisplayName)) === $lowerSearch) ||
 				strtolower($userEmail ?? '') === $lowerSearch)
 			) {
 				if (strtolower($uid) === $lowerSearch) {