Migrate HintException to OCP

Signed-off-by: Gary Kim <gary@garykim.dev>

28 files changed, 134 insertions, 82 deletions

diff --git a/lib/base.php b/lib/base.php
index 473a3419cb1..45d06da0303 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -388,7 +388,7 @@ class OC {
 		if (!empty($incompatibleShippedApps)) {
 			$l = \OC::$server->getL10N('core');
 			$hint = $l->t('The files of the app %1$s were not replaced correctly. Make sure it is a version compatible with the server.', [implode(', ', $incompatibleShippedApps)]);
-			throw new \OC\HintException('The files of the app ' . implode(', ', $incompatibleShippedApps) . ' were not replaced correctly. Make sure it is a version compatible with the server.', $hint);
+			throw new \OCP\HintException('The files of the app ' . implode(', ', $incompatibleShippedApps) . ' were not replaced correctly. Make sure it is a version compatible with the server.', $hint);
 		}
 
 		$tmpl->assign('appsToUpgrade', $appManager->getAppsNeedingUpgrade($ocVersion));
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 55d02c2feeb..82c40c800a4 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -371,6 +371,7 @@ return array(
     'OCP\\Group\\Events\\UserAddedEvent' => $baseDir . '/lib/public/Group/Events/UserAddedEvent.php',
     'OCP\\Group\\Events\\UserRemovedEvent' => $baseDir . '/lib/public/Group/Events/UserRemovedEvent.php',
     'OCP\\Group\\ISubAdmin' => $baseDir . '/lib/public/Group/ISubAdmin.php',
+    'OCP\\HintException' => $baseDir . '/lib/public/HintException.php',
     'OCP\\Http\\Client\\IClient' => $baseDir . '/lib/public/Http/Client/IClient.php',
     'OCP\\Http\\Client\\IClientService' => $baseDir . '/lib/public/Http/Client/IClientService.php',
     'OCP\\Http\\Client\\IResponse' => $baseDir . '/lib/public/Http/Client/IResponse.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 6f2bb064fc0..423fd814d6b 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -400,6 +400,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OCP\\Group\\Events\\UserAddedEvent' => __DIR__ . '/../../..' . '/lib/public/Group/Events/UserAddedEvent.php',
         'OCP\\Group\\Events\\UserRemovedEvent' => __DIR__ . '/../../..' . '/lib/public/Group/Events/UserRemovedEvent.php',
         'OCP\\Group\\ISubAdmin' => __DIR__ . '/../../..' . '/lib/public/Group/ISubAdmin.php',
+        'OCP\\HintException' => __DIR__ . '/../../..' . '/lib/public/HintException.php',
         'OCP\\Http\\Client\\IClient' => __DIR__ . '/../../..' . '/lib/public/Http/Client/IClient.php',
         'OCP\\Http\\Client\\IClientService' => __DIR__ . '/../../..' . '/lib/public/Http/Client/IClientService.php',
         'OCP\\Http\\Client\\IResponse' => __DIR__ . '/../../..' . '/lib/public/Http/Client/IResponse.php',
diff --git a/lib/private/AppFramework/App.php b/lib/private/AppFramework/App.php
index 37cc0b71e3f..6c2f905afa5 100644
--- a/lib/private/AppFramework/App.php
+++ b/lib/private/AppFramework/App.php
@@ -34,11 +34,11 @@ namespace OC\AppFramework;
 use OC\AppFramework\DependencyInjection\DIContainer;
 use OC\AppFramework\Http\Dispatcher;
 use OC\AppFramework\Http\Request;
-use OC\HintException;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\ICallbackResponse;
 use OCP\AppFramework\Http\IOutput;
 use OCP\AppFramework\QueryException;
+use OCP\HintException;
 use OCP\IRequest;
 
 /**
@@ -105,6 +105,7 @@ class App {
 
 	/**
 	 * Shortcut for calling a controller method and printing the result
+	 *
 	 * @param string $controllerName the name of the controller under which it is
 	 *                               stored in the DI container
 	 * @param string $methodName the method that you want to call
diff --git a/lib/private/Config.php b/lib/private/Config.php
index e3ace96c359..2a83d2300dc 100644
--- a/lib/private/Config.php
+++ b/lib/private/Config.php
@@ -38,6 +38,8 @@
  */
 namespace OC;
 
+use OCP\HintException;
+
 /**
  * This class is responsible for reading and writing config.php, the very basic
  * configuration file of Nextcloud.
diff --git a/lib/private/DatabaseSetupException.php b/lib/private/DatabaseSetupException.php
index b1b4956db41..44583416dbc 100644
--- a/lib/private/DatabaseSetupException.php
+++ b/lib/private/DatabaseSetupException.php
@@ -22,5 +22,7 @@
  */
 namespace OC;
 
+use OCP\HintException;
+
 class DatabaseSetupException extends HintException {
 }
diff --git a/lib/private/HintException.php b/lib/private/HintException.php
index e3173ba79fd..735832266cf 100644
--- a/lib/private/HintException.php
+++ b/lib/private/HintException.php
@@ -1,28 +1,28 @@
 <?php
+
+declare(strict_types=1);
 /**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @copyright Copyright (c) 2021 Gary Kim <gary@garykim.dev>
  *
- * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Lukas Reschke <lukas@statuscode.ch>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
+ * @author Gary Kim <gary@garykim.dev>
  *
- * @license AGPL-3.0
+ * @license GNU AGPL version 3 or any later version
  *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Affero General Public License for more details.
  *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+
 namespace OC;
 
 /**
@@ -31,48 +31,7 @@ namespace OC;
  * An Exception class with the intention to be presented to the end user
  *
  * @package OC
+ * @depreacted 23.0.0 Use \OCP\HintException
  */
-class HintException extends \Exception {
-	private $hint;
-
-	/**
-	 * HintException constructor.
-	 *
-	 * @param string $message  The error message. It will be not revealed to the
-	 *                         the user (unless the hint is empty) and thus
-	 *                         should be not translated.
-	 * @param string $hint     A useful message that is presented to the end
-	 *                         user. It should be translated, but must not
-	 *                         contain sensitive data.
-	 * @param int $code
-	 * @param \Exception|null $previous
-	 */
-	public function __construct($message, $hint = '', $code = 0, \Exception $previous = null) {
-		$this->hint = $hint;
-		parent::__construct($message, $code, $previous);
-	}
-
-	/**
-	 * Returns a string representation of this Exception that includes the error
-	 * code, the message and the hint.
-	 *
-	 * @return string
-	 */
-	public function __toString() {
-		return __CLASS__ . ": [{$this->code}]: {$this->message} ({$this->hint})\n";
-	}
-
-	/**
-	 * Returns the hint with the intention to be presented to the end user. If
-	 * an empty hint was specified upon instatiation, the message is returned
-	 * instead.
-	 *
-	 * @return string
-	 */
-	public function getHint() {
-		if (empty($this->hint)) {
-			return $this->message;
-		}
-		return $this->hint;
-	}
+class HintException extends \OCP\HintException {
 }
diff --git a/lib/private/Installer.php b/lib/private/Installer.php
index d1e903424ed..19e70aad147 100644
--- a/lib/private/Installer.php
+++ b/lib/private/Installer.php
@@ -48,6 +48,7 @@ use OC\DB\Connection;
 use OC\DB\MigrationService;
 use OC_App;
 use OC_Helper;
+use OCP\HintException;
 use OCP\Http\Client\IClientService;
 use OCP\IConfig;
 use OCP\ILogger;
diff --git a/lib/private/Log/ExceptionSerializer.php b/lib/private/Log/ExceptionSerializer.php
index aba5586297a..bab22ab4aac 100644
--- a/lib/private/Log/ExceptionSerializer.php
+++ b/lib/private/Log/ExceptionSerializer.php
@@ -29,10 +29,10 @@
 namespace OC\Log;
 
 use OC\Core\Controller\SetupController;
-use OC\HintException;
 use OC\Security\IdentityProof\Key;
 use OC\Setup;
 use OC\SystemConfig;
+use OCP\HintException;
 
 class ExceptionSerializer {
 	public const methodsWithSensitiveParameters = [
diff --git a/lib/private/Log/Systemdlog.php b/lib/private/Log/Systemdlog.php
index 17778891efe..a01826c0b05 100644
--- a/lib/private/Log/Systemdlog.php
+++ b/lib/private/Log/Systemdlog.php
@@ -25,8 +25,8 @@
  */
 namespace OC\Log;
 
-use OC\HintException;
 use OC\SystemConfig;
+use OCP\HintException;
 use OCP\ILogger;
 use OCP\Log\IWriter;
 
diff --git a/lib/private/Memcache/Factory.php b/lib/private/Memcache/Factory.php
index 9810f068148..28a84308edc 100644
--- a/lib/private/Memcache/Factory.php
+++ b/lib/private/Memcache/Factory.php
@@ -86,12 +86,12 @@ class Factory implements ICacheFactory {
 		$missingCacheMessage = 'Memcache {class} not available for {use} cache';
 		$missingCacheHint = 'Is the matching PHP module installed and enabled?';
 		if (!class_exists($localCacheClass) || !$localCacheClass::isAvailable()) {
-			throw new \OC\HintException(strtr($missingCacheMessage, [
+			throw new \OCP\HintException(strtr($missingCacheMessage, [
 				'{class}' => $localCacheClass, '{use}' => 'local'
 			]), $missingCacheHint);
 		}
 		if (!class_exists($distributedCacheClass) || !$distributedCacheClass::isAvailable()) {
-			throw new \OC\HintException(strtr($missingCacheMessage, [
+			throw new \OCP\HintException(strtr($missingCacheMessage, [
 				'{class}' => $distributedCacheClass, '{use}' => 'distributed'
 			]), $missingCacheHint);
 		}
diff --git a/lib/private/Memcache/Memcached.php b/lib/private/Memcache/Memcached.php
index cd1af031d8a..b3414a7d290 100644
--- a/lib/private/Memcache/Memcached.php
+++ b/lib/private/Memcache/Memcached.php
@@ -31,7 +31,7 @@
  */
 namespace OC\Memcache;
 
-use OC\HintException;
+use OCP\HintException;
 use OCP\IMemcache;
 
 class Memcached extends Cache implements IMemcache {
diff --git a/lib/private/Setup.php b/lib/private/Setup.php
index 8e7e6ae6aea..d39fa069286 100644
--- a/lib/private/Setup.php
+++ b/lib/private/Setup.php
@@ -224,7 +224,7 @@ class Setup {
 			try {
 				$util = new \OC_Util();
 				$htAccessWorking = $util->isHtaccessWorking(\OC::$server->getConfig());
-			} catch (\OC\HintException $e) {
+			} catch (\OCP\HintException $e) {
 				$errors[] = [
 					'error' => $e->getMessage(),
 					'exception' => $e,
diff --git a/lib/private/Share20/Manager.php b/lib/private/Share20/Manager.php
index b5e1b944bc5..7047c32e339 100644
--- a/lib/private/Share20/Manager.php
+++ b/lib/private/Share20/Manager.php
@@ -43,7 +43,6 @@ namespace OC\Share20;
 
 use OC\Cache\CappedMemoryCache;
 use OC\Files\Mount\MoveableMount;
-use OC\HintException;
 use OC\Share20\Exception\ProviderException;
 use OCA\Files_Sharing\ISharedStorage;
 use OCP\EventDispatcher\IEventDispatcher;
@@ -52,6 +51,7 @@ use OCP\Files\Folder;
 use OCP\Files\IRootFolder;
 use OCP\Files\Mount\IMountManager;
 use OCP\Files\Node;
+use OCP\HintException;
 use OCP\IConfig;
 use OCP\IGroupManager;
 use OCP\IL10N;
diff --git a/lib/private/Updater.php b/lib/private/Updater.php
index 5fa41e48c0c..cffdac310cb 100644
--- a/lib/private/Updater.php
+++ b/lib/private/Updater.php
@@ -45,6 +45,7 @@ use OC\DB\MigrationService;
 use OC\Hooks\BasicEmitter;
 use OC\IntegrityCheck\Checker;
 use OC_App;
+use OCP\HintException;
 use OCP\IConfig;
 use OCP\ILogger;
 use OCP\Util;
diff --git a/lib/private/User/Manager.php b/lib/private/User/Manager.php
index 07a599cf017..12c615d500b 100644
--- a/lib/private/User/Manager.php
+++ b/lib/private/User/Manager.php
@@ -33,10 +33,10 @@
  */
 namespace OC\User;
 
-use OC\HintException;
 use OC\Hooks\PublicEmitter;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\EventDispatcher\IEventDispatcher;
+use OCP\HintException;
 use OCP\ICache;
 use OCP\ICacheFactory;
 use OCP\IConfig;
diff --git a/lib/private/legacy/OC_Hook.php b/lib/private/legacy/OC_Hook.php
index d9e4c99e498..b223b0fa6d6 100644
--- a/lib/private/legacy/OC_Hook.php
+++ b/lib/private/legacy/OC_Hook.php
@@ -81,7 +81,7 @@ class OC_Hook {
 	 * @param string $signalName name of signal
 	 * @param mixed $params default: array() array with additional data
 	 * @return bool true if slots exists or false if not
-	 * @throws \OC\HintException
+	 * @throws \OCP\HintException
 	 * @throws \OC\ServerNotAvailableException Emits a signal. To get data from the slot use references!
 	 *
 	 * TODO: write example
@@ -107,7 +107,7 @@ class OC_Hook {
 			} catch (Exception $e) {
 				self::$thrownExceptions[] = $e;
 				\OC::$server->getLogger()->logException($e);
-				if ($e instanceof \OC\HintException) {
+				if ($e instanceof \OCP\HintException) {
 					throw $e;
 				}
 				if ($e instanceof \OC\ServerNotAvailableException) {
diff --git a/lib/private/legacy/OC_Util.php b/lib/private/legacy/OC_Util.php
index 87964f98374..333b621e359 100644
--- a/lib/private/legacy/OC_Util.php
+++ b/lib/private/legacy/OC_Util.php
@@ -63,6 +63,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>
  *
  */
+
 use bantu\IniGetWrapper\IniGetWrapper;
 use OC\AppFramework\Http\Request;
 use OC\Files\Storage\LocalRootStorage;
@@ -1214,7 +1215,7 @@ class OC_Util {
 
 		$fp = @fopen($testFile, 'w');
 		if (!$fp) {
-			throw new OC\HintException('Can\'t create test file to check for working .htaccess file.',
+			throw new \OCP\HintException('Can\'t create test file to check for working .htaccess file.',
 				'Make sure it is possible for the webserver to write to ' . $testFile);
 		}
 		fwrite($fp, $testContent);
@@ -1225,10 +1226,11 @@ class OC_Util {
 
 	/**
 	 * Check if the .htaccess file is working
+	 *
 	 * @param \OCP\IConfig $config
 	 * @return bool
 	 * @throws Exception
-	 * @throws \OC\HintException If the test file can't get written.
+	 * @throws \OCP\HintException If the test file can't get written.
 	 */
 	public function isHtaccessWorking(\OCP\IConfig $config) {
 		if (\OC::$CLI || !$config->getSystemValue('check_for_working_htaccess', true)) {
@@ -1422,7 +1424,7 @@ class OC_Util {
 	 *
 	 * @param \OC\SystemConfig $config
 	 * @return bool whether the core or any app needs an upgrade
-	 * @throws \OC\HintException When the upgrade from the given version is not allowed
+	 * @throws \OCP\HintException When the upgrade from the given version is not allowed
 	 */
 	public static function needUpgrade(\OC\SystemConfig $config) {
 		if ($config->getValue('installed', false)) {
@@ -1442,11 +1444,11 @@ class OC_Util {
 					return true;
 				} else {
 					// downgrade attempt, throw exception
-					throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
+					throw new \OCP\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
 				}
 			} elseif ($versionDiff < 0) {
 				// downgrade attempt, throw exception
-				throw new \OC\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
+				throw new \OCP\HintException('Downgrading is not supported and is likely to cause unpredictable issues (from ' . $installedVersion . ' to ' . $currentVersion . ')');
 			}
 
 			// also check for upgrades for apps (independently from the user)
diff --git a/lib/public/Encryption/Exceptions/GenericEncryptionException.php b/lib/public/Encryption/Exceptions/GenericEncryptionException.php
index 9f349a28a76..aef4114bb1b 100644
--- a/lib/public/Encryption/Exceptions/GenericEncryptionException.php
+++ b/lib/public/Encryption/Exceptions/GenericEncryptionException.php
@@ -26,7 +26,7 @@
  */
 namespace OCP\Encryption\Exceptions;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Class GenericEncryptionException
diff --git a/lib/public/Federation/Exceptions/ActionNotSupportedException.php b/lib/public/Federation/Exceptions/ActionNotSupportedException.php
index 3ec729e415a..7b2ca3d9597 100644
--- a/lib/public/Federation/Exceptions/ActionNotSupportedException.php
+++ b/lib/public/Federation/Exceptions/ActionNotSupportedException.php
@@ -22,7 +22,7 @@
  */
 namespace OCP\Federation\Exceptions;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Class ActionNotSupportedException
diff --git a/lib/public/Federation/Exceptions/AuthenticationFailedException.php b/lib/public/Federation/Exceptions/AuthenticationFailedException.php
index 61ea080f5d4..dfcd9636035 100644
--- a/lib/public/Federation/Exceptions/AuthenticationFailedException.php
+++ b/lib/public/Federation/Exceptions/AuthenticationFailedException.php
@@ -22,7 +22,7 @@
  */
 namespace OCP\Federation\Exceptions;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Class AuthenticationFailedException
diff --git a/lib/public/Federation/Exceptions/BadRequestException.php b/lib/public/Federation/Exceptions/BadRequestException.php
index bea6fba2b18..8054c0e89f0 100644
--- a/lib/public/Federation/Exceptions/BadRequestException.php
+++ b/lib/public/Federation/Exceptions/BadRequestException.php
@@ -23,7 +23,7 @@
  */
 namespace OCP\Federation\Exceptions;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Class BadRequestException
diff --git a/lib/public/Federation/Exceptions/ProviderAlreadyExistsException.php b/lib/public/Federation/Exceptions/ProviderAlreadyExistsException.php
index 48aa883a028..b6d4b7e9bce 100644
--- a/lib/public/Federation/Exceptions/ProviderAlreadyExistsException.php
+++ b/lib/public/Federation/Exceptions/ProviderAlreadyExistsException.php
@@ -24,7 +24,7 @@
  */
 namespace OCP\Federation\Exceptions;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Class ProviderAlreadyExistsException
diff --git a/lib/public/Federation/Exceptions/ProviderCouldNotAddShareException.php b/lib/public/Federation/Exceptions/ProviderCouldNotAddShareException.php
index c647b2d9c9e..efcc8788386 100644
--- a/lib/public/Federation/Exceptions/ProviderCouldNotAddShareException.php
+++ b/lib/public/Federation/Exceptions/ProviderCouldNotAddShareException.php
@@ -22,8 +22,8 @@
  */
 namespace OCP\Federation\Exceptions;
 
-use OC\HintException;
 use OCP\AppFramework\Http;
+use OCP\HintException;
 
 /**
  * Class ProviderCouldNotAddShareException
diff --git a/lib/public/Federation/Exceptions/ProviderDoesNotExistsException.php b/lib/public/Federation/Exceptions/ProviderDoesNotExistsException.php
index b56a6ef8d4c..69c69f17d99 100644
--- a/lib/public/Federation/Exceptions/ProviderDoesNotExistsException.php
+++ b/lib/public/Federation/Exceptions/ProviderDoesNotExistsException.php
@@ -22,7 +22,7 @@
  */
 namespace OCP\Federation\Exceptions;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Class ProviderDoesNotExistsException
diff --git a/lib/public/Files/StorageNotAvailableException.php b/lib/public/Files/StorageNotAvailableException.php
index e166df90d77..f600ef80808 100644
--- a/lib/public/Files/StorageNotAvailableException.php
+++ b/lib/public/Files/StorageNotAvailableException.php
@@ -32,7 +32,7 @@
 
 namespace OCP\Files;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Storage is temporarily not available
diff --git a/lib/public/HintException.php b/lib/public/HintException.php
new file mode 100644
index 00000000000..b5ee7642b03
--- /dev/null
+++ b/lib/public/HintException.php
@@ -0,0 +1,82 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ * @author Bart Visscher <bartv@thisnet.nl>
+ * @author Lukas Reschke <lukas@statuscode.ch>
+ * @author Michael Gapczynski <GapczynskiM@gmail.com>
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OCP;
+
+/**
+ * Class HintException
+ *
+ * An Exception class with the intention to be presented to the end user
+ *
+ * @package OCP
+ * @since 23.0.0
+ */
+class HintException extends \Exception {
+	private $hint;
+
+	/**
+	 * HintException constructor.
+	 *
+	 * @since 23.0.0
+	 * @param string $message  The error message. It will be not revealed to the
+	 *                         the user (unless the hint is empty) and thus
+	 *                         should be not translated.
+	 * @param string $hint     A useful message that is presented to the end
+	 *                         user. It should be translated, but must not
+	 *                         contain sensitive data.
+	 * @param int $code
+	 * @param \Exception|null $previous
+	 */
+	public function __construct($message, $hint = '', $code = 0, \Exception $previous = null) {
+		$this->hint = $hint;
+		parent::__construct($message, $code, $previous);
+	}
+
+	/**
+	 * Returns a string representation of this Exception that includes the error
+	 * code, the message and the hint.
+	 *
+	 * @since 23.0.0
+	 * @return string
+	 */
+	public function __toString(): string {
+		return __CLASS__ . ": [{$this->code}]: {$this->message} ({$this->hint})\n";
+	}
+
+	/**
+	 * Returns the hint with the intention to be presented to the end user. If
+	 * an empty hint was specified upon instatiation, the message is returned
+	 * instead.
+	 *
+	 * @since 23.0.0
+	 * @return string
+	 */
+	public function getHint(): string {
+		if (empty($this->hint)) {
+			return $this->message;
+		}
+		return $this->hint;
+	}
+}
diff --git a/lib/public/Share/Exceptions/GenericShareException.php b/lib/public/Share/Exceptions/GenericShareException.php
index 46a46ac0ab7..85c440e2387 100644
--- a/lib/public/Share/Exceptions/GenericShareException.php
+++ b/lib/public/Share/Exceptions/GenericShareException.php
@@ -24,7 +24,7 @@
  */
 namespace OCP\Share\Exceptions;
 
-use OC\HintException;
+use OCP\HintException;
 
 /**
  * Class GenericEncryptionException