Refactor `OC\Server::getHasher`

Signed-off-by: Andrew Summers <18727110+summersab@users.noreply.github.com>

lib/private/Security/Hasher.php

@@ -42,10 +42,10 @@ use OCP\Security\IHasher;
  *
  * Usage:
  * // Hashing a message
- * $hash = \OC::$server->getHasher()->hash('MessageToHash');
+ * $hash = \OC::$server->get(\OCP\Security\IHasher::class)->hash('MessageToHash');
  * // Verifying a message - $newHash will contain the newly calculated hash
  * $newHash = null;
- * var_dump(\OC::$server->getHasher()->verify('a', '86f7e437faa5a7fce15d1ddcb9eaeaea377667b8', $newHash));
+ * var_dump(\OC::$server->get(\OCP\Security\IHasher::class)->verify('a', '86f7e437faa5a7fce15d1ddcb9eaeaea377667b8', $newHash));
  * var_dump($newHash);
  *
  * @package OC\Security

lib/private/Share20/ProviderFactory.php

@@ -45,6 +45,7 @@ use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\Defaults;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\IServerContainer;
+use OCP\Security\IHasher;
 use OCP\Share\IManager;
 use OCP\Share\IProviderFactory;
 use OCP\Share\IShare;
@@ -199,7 +200,7 @@ class ProviderFactory implements IProviderFactory {
 				$this->serverContainer->getActivityManager(),
 				$settingsManager,
 				$this->serverContainer->query(Defaults::class),
-				$this->serverContainer->getHasher(),
+				$this->serverContainer->get(IHasher::class),
 				$this->serverContainer->get(IEventDispatcher::class),
 				$this->serverContainer->get(IManager::class)
 			);

lib/private/User/Database.php

@@ -50,6 +50,7 @@ use OCP\Cache\CappedMemoryCache;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\IDBConnection;
 use OCP\Security\Events\ValidatePasswordPolicyEvent;
+use OCP\Security\IHasher;
 use OCP\User\Backend\ABackend;
 use OCP\User\Backend\ICheckPasswordBackend;
 use OCP\User\Backend\ICountUsersBackend;
@@ -130,7 +131,7 @@ class Database extends ABackend implements
 				$qb->insert($this->table)
 					->values([
 						'uid' => $qb->createNamedParameter($uid),
-						'password' => $qb->createNamedParameter(\OC::$server->getHasher()->hash($password)),
+						'password' => $qb->createNamedParameter(\OC::$server->get(IHasher::class)->hash($password)),
 						'uid_lower' => $qb->createNamedParameter(mb_strtolower($uid)),
 					]);
 
@@ -197,7 +198,7 @@ class Database extends ABackend implements
 		if ($this->userExists($uid)) {
 			$this->eventDispatcher->dispatchTyped(new ValidatePasswordPolicyEvent($password));
 
-			$hasher = \OC::$server->getHasher();
+			$hasher = \OC::$server->get(IHasher::class);
 			$hashedPassword = $hasher->hash($password);
 
 			$return = $this->updatePassword($uid, $hashedPassword);
@@ -353,7 +354,7 @@ class Database extends ABackend implements
 		if ($found && is_array($this->cache[$loginName])) {
 			$storedHash = $this->cache[$loginName]['password'];
 			$newHash = '';
-			if (\OC::$server->getHasher()->verify($password, $storedHash, $newHash)) {
+			if (\OC::$server->get(IHasher::class)->verify($password, $storedHash, $newHash)) {
 				if (!empty($newHash)) {
 					$this->updatePassword($loginName, $newHash);
 				}

lib/public/Security/IHasher.php

@@ -37,10 +37,10 @@ namespace OCP\Security;
  *
  * Usage:
  * // Hashing a message
- * $hash = \OC::$server->getHasher()->hash('MessageToHash');
+ * $hash = \OC::$server->get(\OCP\Security\IHasher::class)->hash('MessageToHash');
  * // Verifying a message - $newHash will contain the newly calculated hash
  * $newHash = null;
- * var_dump(\OC::$server->getHasher()->verify('a', '86f7e437faa5a7fce15d1ddcb9eaeaea377667b8', $newHash));
+ * var_dump(\OC::$server->get(\OCP\Security\IHasher::class)->verify('a', '86f7e437faa5a7fce15d1ddcb9eaeaea377667b8', $newHash));
  * var_dump($newHash);
  *
  * @since 8.0.0

tests/lib/Authentication/Token/PublicKeyTokenProviderTest.php

@@ -70,7 +70,7 @@ class PublicKeyTokenProviderTest extends TestCase {
 		parent::setUp();
 
 		$this->mapper = $this->createMock(PublicKeyTokenMapper::class);
-		$this->hasher = \OC::$server->getHasher();
+		$this->hasher = \OC::$server->get(IHasher::class);
 		$this->crypto = \OC::$server->getCrypto();
 		$this->config = $this->createMock(IConfig::class);
 		$this->config->method('getSystemValueInt')