314 lines
8.9 KiB
PHP
314 lines
8.9 KiB
PHP
<?php
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/**
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* @copyright 2017 Christoph Wurst <christoph@winzerhof-wurst.at>
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* @copyright 2017 Lukas Reschke <lukas@statuscode.ch>
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Daniel Calviño Sánchez <danxuliu@gmail.com>
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* @author Georg Ehrke <oc.list@georgehrke.com>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Tobia De Koninck <tobia@ledfan.be>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\Contacts\ContactsMenu;
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use OC\KnownUser\KnownUserService;
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use OCP\Contacts\ContactsMenu\IContactsStore;
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use OCP\Contacts\ContactsMenu\IEntry;
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use OCP\Contacts\IManager;
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use OCP\IConfig;
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use OCP\IGroupManager;
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use OCP\IUser;
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use OCP\IUserManager;
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class ContactsStore implements IContactsStore {
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/** @var IManager */
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private $contactsManager;
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/** @var IConfig */
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private $config;
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/** @var IUserManager */
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private $userManager;
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/** @var IGroupManager */
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private $groupManager;
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/** @var KnownUserService */
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private $knownUserService;
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public function __construct(IManager $contactsManager,
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IConfig $config,
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IUserManager $userManager,
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IGroupManager $groupManager,
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KnownUserService $knownUserService) {
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$this->contactsManager = $contactsManager;
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$this->config = $config;
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$this->userManager = $userManager;
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$this->groupManager = $groupManager;
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$this->knownUserService = $knownUserService;
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}
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/**
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* @param IUser $user
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* @param string|null $filter
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* @return IEntry[]
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*/
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public function getContacts(IUser $user, $filter, ?int $limit = null, ?int $offset = null) {
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$options = [];
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if ($limit !== null) {
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$options['limit'] = $limit;
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}
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if ($offset !== null) {
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$options['offset'] = $offset;
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}
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$allContacts = $this->contactsManager->search(
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$filter ?: '',
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[
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'FN',
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'EMAIL'
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],
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$options
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);
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$entries = array_map(function (array $contact) {
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return $this->contactArrayToEntry($contact);
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}, $allContacts);
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return $this->filterContacts(
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$user,
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$entries,
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$filter
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);
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}
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/**
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* Filters the contacts. Applied filters:
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* 1. filter the current user
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* 2. if the `shareapi_allow_share_dialog_user_enumeration` config option is
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* enabled it will filter all local users
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* 3. if the `shareapi_exclude_groups` config option is enabled and the
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* current user is in an excluded group it will filter all local users.
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* 4. if the `shareapi_only_share_with_group_members` config option is
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* enabled it will filter all users which doens't have a common group
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* with the current user.
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*
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* @param IUser $self
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* @param Entry[] $entries
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* @param string $filter
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* @return Entry[] the filtered contacts
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*/
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private function filterContacts(IUser $self,
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array $entries,
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$filter) {
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$disallowEnumeration = $this->config->getAppValue('core', 'shareapi_allow_share_dialog_user_enumeration', 'yes') !== 'yes';
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$restrictEnumerationGroup = $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_to_group', 'no') === 'yes';
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$restrictEnumerationPhone = $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_to_phone', 'no') === 'yes';
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$allowEnumerationFullMatch = $this->config->getAppValue('core', 'shareapi_restrict_user_enumeration_full_match', 'yes') === 'yes';
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$excludedGroups = $this->config->getAppValue('core', 'shareapi_exclude_groups', 'no') === 'yes';
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// whether to filter out local users
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$skipLocal = false;
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// whether to filter out all users which don't have a common group as the current user
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$ownGroupsOnly = $this->config->getAppValue('core', 'shareapi_only_share_with_group_members', 'no') === 'yes';
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$selfGroups = $this->groupManager->getUserGroupIds($self);
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if ($excludedGroups) {
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$excludedGroups = $this->config->getAppValue('core', 'shareapi_exclude_groups_list', '');
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$decodedExcludeGroups = json_decode($excludedGroups, true);
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$excludeGroupsList = $decodedExcludeGroups ?? [];
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if (count(array_intersect($excludeGroupsList, $selfGroups)) !== 0) {
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// a group of the current user is excluded -> filter all local users
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$skipLocal = true;
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}
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}
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$selfUID = $self->getUID();
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return array_values(array_filter($entries, function (IEntry $entry) use ($skipLocal, $ownGroupsOnly, $selfGroups, $selfUID, $disallowEnumeration, $restrictEnumerationGroup, $restrictEnumerationPhone, $allowEnumerationFullMatch, $filter) {
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if ($entry->getProperty('UID') === $selfUID) {
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return false;
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}
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if ($entry->getProperty('isLocalSystemBook')) {
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if ($skipLocal) {
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return false;
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}
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$checkedCommonGroupAlready = false;
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// Prevent enumerating local users
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if ($disallowEnumeration) {
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if (!$allowEnumerationFullMatch) {
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return false;
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}
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$filterOutUser = true;
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$mailAddresses = $entry->getEMailAddresses();
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foreach ($mailAddresses as $mailAddress) {
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if ($mailAddress === $filter) {
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$filterOutUser = false;
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break;
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}
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}
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if ($entry->getProperty('UID') && $entry->getProperty('UID') === $filter) {
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$filterOutUser = false;
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}
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if ($filterOutUser) {
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return false;
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}
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} elseif ($restrictEnumerationPhone || $restrictEnumerationGroup) {
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$canEnumerate = false;
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if ($restrictEnumerationPhone) {
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$canEnumerate = $this->knownUserService->isKnownToUser($selfUID, $entry->getProperty('UID'));
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}
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if (!$canEnumerate && $restrictEnumerationGroup) {
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$user = $this->userManager->get($entry->getProperty('UID'));
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if ($user === null) {
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return false;
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}
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$contactGroups = $this->groupManager->getUserGroupIds($user);
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$canEnumerate = !empty(array_intersect($contactGroups, $selfGroups));
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$checkedCommonGroupAlready = true;
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}
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if (!$canEnumerate) {
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return false;
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}
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}
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if ($ownGroupsOnly && !$checkedCommonGroupAlready) {
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$user = $this->userManager->get($entry->getProperty('UID'));
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if (!$user instanceof IUser) {
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return false;
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}
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$contactGroups = $this->groupManager->getUserGroupIds($user);
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if (empty(array_intersect($contactGroups, $selfGroups))) {
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// no groups in common, so shouldn't see the contact
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return false;
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}
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}
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}
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return true;
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}));
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}
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/**
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* @param IUser $user
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* @param integer $shareType
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* @param string $shareWith
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* @return IEntry|null
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*/
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public function findOne(IUser $user, $shareType, $shareWith) {
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switch ($shareType) {
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case 0:
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case 6:
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$filter = ['UID'];
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break;
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case 4:
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$filter = ['EMAIL'];
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break;
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default:
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return null;
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}
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$userId = $user->getUID();
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$allContacts = $this->contactsManager->search($shareWith, $filter);
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$contacts = array_filter($allContacts, function ($contact) use ($userId) {
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return $contact['UID'] !== $userId;
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});
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$match = null;
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foreach ($contacts as $contact) {
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if ($shareType === 4 && isset($contact['EMAIL'])) {
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if (in_array($shareWith, $contact['EMAIL'])) {
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$match = $contact;
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break;
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}
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}
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if ($shareType === 0 || $shareType === 6) {
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$isLocal = $contact['isLocalSystemBook'] ?? false;
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if ($contact['UID'] === $shareWith && $isLocal === true) {
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$match = $contact;
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break;
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}
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}
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}
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if ($match) {
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$match = $this->filterContacts($user, [$this->contactArrayToEntry($match)], $shareWith);
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if (count($match) === 1) {
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$match = $match[0];
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} else {
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$match = null;
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}
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}
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return $match;
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}
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/**
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* @param array $contact
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* @return Entry
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*/
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private function contactArrayToEntry(array $contact) {
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$entry = new Entry();
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if (isset($contact['id'])) {
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$entry->setId($contact['id']);
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}
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if (isset($contact['FN'])) {
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$entry->setFullName($contact['FN']);
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}
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$avatarPrefix = "VALUE=uri:";
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if (isset($contact['PHOTO']) && strpos($contact['PHOTO'], $avatarPrefix) === 0) {
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$entry->setAvatar(substr($contact['PHOTO'], strlen($avatarPrefix)));
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}
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if (isset($contact['EMAIL'])) {
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foreach ($contact['EMAIL'] as $email) {
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$entry->addEMailAddress($email);
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}
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}
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// Attach all other properties to the entry too because some
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// providers might make use of it.
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$entry->setProperties($contact);
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return $entry;
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}
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}
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