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Editing: ProfileManager.php

<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OC\Profile;

use OC\AppFramework\Bootstrap\Coordinator;
use OC\Config\PresetManager;
use OC\Core\Db\ProfileConfig;
use OC\Core\Db\ProfileConfigMapper;
use OC\Core\ResponseDefinitions;
use OC\KnownUser\KnownUserService;
use OC\Profile\Actions\BlueskyAction;
use OC\Profile\Actions\EmailAction;
use OC\Profile\Actions\FediverseAction;
use OC\Profile\Actions\PhoneAction;
use OC\Profile\Actions\TwitterAction;
use OC\Profile\Actions\WebsiteAction;
use OCP\Accounts\IAccountManager;
use OCP\Accounts\PropertyDoesNotExistException;
use OCP\App\IAppManager;
use OCP\AppFramework\Db\DoesNotExistException;
use OCP\Cache\CappedMemoryCache;
use OCP\Config\Lexicon\Preset;
use OCP\IConfig;
use OCP\IUser;
use OCP\L10N\IFactory;
use OCP\Profile\ILinkAction;
use OCP\Profile\IProfileManager;
use Psr\Container\ContainerInterface;
use Psr\Log\LoggerInterface;
use function array_flip;
use function usort;

/**
 * @psalm-import-type CoreProfileFields from ResponseDefinitions
 */
class ProfileManager implements IProfileManager {
	/** @var ILinkAction[] */
	private array $actions = [];

/** @var null|ILinkAction[] */
	private ?array $sortedActions = null;
	/** @var CappedMemoryCache<ProfileConfig> */
	private CappedMemoryCache $configCache;

private const CORE_APP_ID = 'core';

/**
	 * Array of account property actions
	 */
	private const ACCOUNT_PROPERTY_ACTIONS = [
		EmailAction::class,
		PhoneAction::class,
		WebsiteAction::class,
		TwitterAction::class,
		BlueskyAction::class,
		FediverseAction::class,
	];

/**
	 * Array of account properties displayed on the profile
	 */
	private const PROFILE_PROPERTIES = [
		IAccountManager::PROPERTY_ADDRESS,
		IAccountManager::PROPERTY_AVATAR,
		IAccountManager::PROPERTY_BIOGRAPHY,
		IAccountManager::PROPERTY_DISPLAYNAME,
		IAccountManager::PROPERTY_HEADLINE,
		IAccountManager::PROPERTY_ORGANISATION,
		IAccountManager::PROPERTY_ROLE,
		IAccountManager::PROPERTY_PRONOUNS,
	];

public function __construct(
		private IAccountManager $accountManager,
		private IAppManager $appManager,
		private IConfig $config,
		private ProfileConfigMapper $configMapper,
		private ContainerInterface $container,
		private KnownUserService $knownUserService,
		private IFactory $l10nFactory,
		private LoggerInterface $logger,
		private Coordinator $coordinator,
		private readonly PresetManager $presetManager,
	) {
		$this->configCache = new CappedMemoryCache();
	}

/**
	 * If no user is passed as an argument return whether profile is enabled globally in `config.php`
	 */
	public function isProfileEnabled(?IUser $user = null): bool {
		$profileEnabledGlobally = $this->config->getSystemValueBool('profile.enabled', true);

if (empty($user) || !$profileEnabledGlobally) {
			return $profileEnabledGlobally;
		}

$account = $this->accountManager->getAccount($user);
		return (bool)filter_var(
			$account->getProperty(IAccountManager::PROPERTY_PROFILE_ENABLED)->getValue(),
			FILTER_VALIDATE_BOOLEAN,
			FILTER_NULL_ON_FAILURE,
		);
	}

/**
	 * Register an action for the user
	 */
	private function registerAction(ILinkAction $action, IUser $targetUser, ?IUser $visitingUser): void {
		$action->preload($targetUser);

if ($action->getTarget() === null) {
			// Actions without a target are not registered
			return;
		}

if ($action->getAppId() !== self::CORE_APP_ID) {
			if (!$this->appManager->isEnabledForUser($action->getAppId(), $targetUser)) {
				$this->logger->notice('App: ' . $action->getAppId() . ' cannot register actions as it is not enabled for the target user: ' . $targetUser->getUID());
				return;
			}
			if (!$this->appManager->isEnabledForUser($action->getAppId(), $visitingUser)) {
				$this->logger->notice('App: ' . $action->getAppId() . ' cannot register actions as it is not enabled for the visiting user: ' . ($visitingUser ? $visitingUser->getUID() : '(user not connected)'));
				return;
			}
		}

if (in_array($action->getId(), self::PROFILE_PROPERTIES, true)) {
			$this->logger->error('Cannot register action with ID: ' . $action->getId() . ', as it is used by a core account property.');
			return;
		}

if (isset($this->actions[$action->getId()])) {
			$this->logger->error('Cannot register duplicate action: ' . $action->getId());
			return;
		}

// Add action to associative array of actions
		$this->actions[$action->getId()] = $action;
	}

/**
	 * Return an array of registered profile actions for the user
	 *
	 * @return ILinkAction[]
	 */
	private function getActions(IUser $targetUser, ?IUser $visitingUser): array {
		// If actions are already registered and sorted, return them
		if ($this->sortedActions !== null) {
			return $this->sortedActions;
		}

foreach (self::ACCOUNT_PROPERTY_ACTIONS as $actionClass) {
			/** @var ILinkAction $action */
			$action = $this->container->get($actionClass);
			$this->registerAction($action, $targetUser, $visitingUser);
		}

$context = $this->coordinator->getRegistrationContext();

if ($context !== null) {
			foreach ($context->getProfileLinkActions() as $registration) {
				/** @var ILinkAction $action */
				$action = $this->container->get($registration->getService());
				$this->registerAction($action, $targetUser, $visitingUser);
			}
		}

$actionsClone = $this->actions;
		// Sort associative array into indexed array in ascending order of priority
		usort($actionsClone, function (ILinkAction $a, ILinkAction $b) {
			return $a->getPriority() === $b->getPriority() ? 0 : ($a->getPriority() < $b->getPriority() ? -1 : 1);
		});

$this->sortedActions = $actionsClone;
		return $this->sortedActions;
	}

/**
	 * Return whether the profile parameter of the target user
	 * is visible to the visiting user
	 */
	public function isProfileFieldVisible(string $profileField, IUser $targetUser, ?IUser $visitingUser): bool {
		try {
			$account = $this->accountManager->getAccount($targetUser);
			$scope = $account->getProperty($profileField)->getScope();
		} catch (PropertyDoesNotExistException $e) {
			// Allow the exception as not all profile parameters are account properties
		}

$visibility = $this->getProfileConfig($targetUser, $visitingUser)[$profileField]['visibility'];
		// Handle profile visibility and account property scope

if ($visibility === self::VISIBILITY_SHOW_USERS_ONLY) {
			if (empty($scope)) {
				return $visitingUser !== null;
			}

return match ($scope) {
				IAccountManager::SCOPE_PRIVATE => $visitingUser !== null && $this->knownUserService->isKnownToUser($targetUser->getUID(), $visitingUser->getUID()),
				IAccountManager::SCOPE_LOCAL,
				IAccountManager::SCOPE_FEDERATED,
				IAccountManager::SCOPE_PUBLISHED => $visitingUser !== null,
				default => false,
			};
		}

if ($visibility === self::VISIBILITY_SHOW) {
			if (empty($scope)) {
				return true;
			}

return false;
	}

/**
	 * Return the profile parameters of the target user that are visible to the visiting user
	 * in an associative array
	 * @psalm-return CoreProfileFields
	 */
	public function getProfileFields(IUser $targetUser, ?IUser $visitingUser): array {
		$account = $this->accountManager->getAccount($targetUser);

// Initialize associative array of profile parameters
		$profileParameters = [
			'userId' => $account->getUser()->getUID(),
		];

// Add account properties
		foreach (self::PROFILE_PROPERTIES as $property) {
			switch ($property) {
				case IAccountManager::PROPERTY_ADDRESS:
				case IAccountManager::PROPERTY_BIOGRAPHY:
				case IAccountManager::PROPERTY_DISPLAYNAME:
				case IAccountManager::PROPERTY_HEADLINE:
				case IAccountManager::PROPERTY_ORGANISATION:
				case IAccountManager::PROPERTY_ROLE:
				case IAccountManager::PROPERTY_PRONOUNS:
					$profileParameters[$property]
						= $this->isProfileFieldVisible($property, $targetUser, $visitingUser)
						// Explicitly set to null when value is empty string
						? ($account->getProperty($property)->getValue() ?: null)
						: null;
					break;
				case IAccountManager::PROPERTY_AVATAR:
					// Add avatar visibility
					$profileParameters['isUserAvatarVisible'] = $this->isProfileFieldVisible($property, $targetUser, $visitingUser);
					break;
			}
		}

// Add actions
		$profileParameters['actions'] = array_map(
			function (ILinkAction $action) {
				return [
					'id' => $action->getId(),
					'icon' => $action->getIcon(),
					'title' => $action->getTitle(),
					'target' => $action->getTarget(),
				];
			},
			// This is needed to reindex the array after filtering
			array_values(
				array_filter(
					$this->getActions($targetUser, $visitingUser),
					function (ILinkAction $action) use ($targetUser, $visitingUser) {
						return $this->isProfileFieldVisible($action->getId(), $targetUser, $visitingUser);
					}
				),
			)
		);

return $profileParameters;
	}

/**
	 * Return the filtered profile config containing only
	 * the properties to be stored on the database
	 */
	private function filterNotStoredProfileConfig(array $profileConfig): array {
		$dbParamConfigProperties = [
			'visibility',
		];

foreach ($profileConfig as $paramId => $paramConfig) {
			$profileConfig[$paramId] = array_intersect_key($paramConfig, array_flip($dbParamConfigProperties));
		}

return $profileConfig;
	}

/**
	 * Return the default profile config
	 */
	private function getDefaultProfileConfig(IUser $targetUser, ?IUser $visitingUser): array {
		// Construct the default config for actions
		$actionsConfig = [];
		foreach ($this->getActions($targetUser, $visitingUser) as $action) {
			$actionsConfig[$action->getId()] = ['visibility' => self::DEFAULT_VISIBILITY];
		}

// Construct the default config for account properties
		$propertiesConfig = [];
		foreach (self::DEFAULT_PROPERTY_VISIBILITY as $property => $visibility) {
			$this->applyDefaultProfilePreset($property, $visibility);
			$propertiesConfig[$property] = ['visibility' => $visibility];
		}

return array_merge($actionsConfig, $propertiesConfig);
	}

/**
	 * modify property visibility, based on current Preset
	 *
	 * @psalm-suppress UnhandledMatchCondition if conditions are not met, we do not change $visibility
	 */
	private function applyDefaultProfilePreset(string $property, string &$visibility): void {
		try {
			$overwrite = match ($this->presetManager->getLexiconPreset()) {
				Preset::SHARED, Preset::SCHOOL, Preset::UNIVERSITY => match ($property) {
					IAccountManager::PROPERTY_ADDRESS, IAccountManager::PROPERTY_EMAIL, IAccountManager::PROPERTY_PHONE => self::VISIBILITY_HIDE,
				},
				Preset::PRIVATE, Preset::FAMILY, Preset::CLUB => match ($property) {
					IAccountManager::PROPERTY_EMAIL => self::VISIBILITY_SHOW,
				},
				Preset::SMALL, Preset::MEDIUM, Preset::LARGE => match ($property) {
					IAccountManager::PROPERTY_EMAIL, IAccountManager::PROPERTY_PHONE => self::VISIBILITY_SHOW,
				},
			};
		} catch (\UnhandledMatchError) {
			return;
		}

$visibility = $overwrite;
	}

/**
	 * Return the profile config of the target user,
	 * if a config does not already exist a default config is created and returned
	 */
	public function getProfileConfig(IUser $targetUser, ?IUser $visitingUser): array {
		$defaultProfileConfig = $this->getDefaultProfileConfig($targetUser, $visitingUser);
		try {
			if (($config = $this->configCache[$targetUser->getUID()]) === null) {
				$config = $this->configMapper->get($targetUser->getUID());
				$this->configCache[$targetUser->getUID()] = $config;
			}
			// Merge defaults with the existing config in case the defaults are missing
			$config->setConfigArray(array_merge(
				$defaultProfileConfig,
				$this->filterNotStoredProfileConfig($config->getConfigArray()),
			));
			$this->configMapper->update($config);
			$configArray = $config->getConfigArray();
		} catch (DoesNotExistException $e) {
			// Create a new default config if it does not exist
			$config = new ProfileConfig();
			$config->setUserId($targetUser->getUID());
			$config->setConfigArray($defaultProfileConfig);
			$this->configMapper->insert($config);
			$configArray = $config->getConfigArray();
		}

return $configArray;
	}

/**
	 * Return the profile config of the target user with additional metadata,
	 * if a config does not already exist a default config is created and returned
	 */
	public function getProfileConfigWithMetadata(IUser $targetUser, ?IUser $visitingUser): array {
		$configArray = $this->getProfileConfig($targetUser, $visitingUser);

$actionsMetadata = [];
		foreach ($this->getActions($targetUser, $visitingUser) as $action) {
			$actionsMetadata[$action->getId()] = [
				'appId' => $action->getAppId(),
				'displayId' => $action->getDisplayId(),
			];
		}

// Add metadata for account property actions which are always configurable
		foreach (self::ACCOUNT_PROPERTY_ACTIONS as $actionClass) {
			/** @var ILinkAction $action */
			$action = $this->container->get($actionClass);
			if (!isset($actionsMetadata[$action->getId()])) {
				$actionsMetadata[$action->getId()] = [
					'appId' => $action->getAppId(),
					'displayId' => $action->getDisplayId(),
				];
			}
		}

$propertiesMetadata = [
			IAccountManager::PROPERTY_ADDRESS => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('Address'),
			],
			IAccountManager::PROPERTY_AVATAR => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('Profile picture'),
			],
			IAccountManager::PROPERTY_BIOGRAPHY => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('About'),
			],
			IAccountManager::PROPERTY_DISPLAYNAME => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('Display name'),
			],
			IAccountManager::PROPERTY_HEADLINE => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('Headline'),
			],
			IAccountManager::PROPERTY_ORGANISATION => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('Organization'),
			],
			IAccountManager::PROPERTY_ROLE => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('Role'),
			],
			IAccountManager::PROPERTY_PRONOUNS => [
				'appId' => self::CORE_APP_ID,
				'displayId' => $this->l10nFactory->get('lib')->t('Pronouns'),
			],
		];

$paramMetadata = array_merge($actionsMetadata, $propertiesMetadata);
		$configArray = array_intersect_key($configArray, $paramMetadata);

foreach ($configArray as $paramId => $paramConfig) {
			if (isset($paramMetadata[$paramId])) {
				$configArray[$paramId] = array_merge(
					$paramConfig,
					$paramMetadata[$paramId],
				);
			}
		}

return $configArray;
	}
}

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