From 2e8af68f769d8ad50c79a0507e8a5b3e399005e7 Mon Sep 17 00:00:00 2001
From: Software Magico <softwaremagico@gmail.com>
Date: Thu, 9 May 2024 13:59:05 +0200
Subject: [PATCH] Adding some compatibility with old non-encrypted database.

---
 .../providers/AuthenticatedUserProvider.java  | 22 ++++++++++++++-----
 .../AuthenticatedUserRepository.java          |  1 +
 2 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/backend/kendo-tournament-core/src/main/java/com/softwaremagico/kt/core/providers/AuthenticatedUserProvider.java b/backend/kendo-tournament-core/src/main/java/com/softwaremagico/kt/core/providers/AuthenticatedUserProvider.java
index ca4d067d6..008a26d22 100644
--- a/backend/kendo-tournament-core/src/main/java/com/softwaremagico/kt/core/providers/AuthenticatedUserProvider.java
+++ b/backend/kendo-tournament-core/src/main/java/com/softwaremagico/kt/core/providers/AuthenticatedUserProvider.java
@@ -38,6 +38,8 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import static com.softwaremagico.kt.persistence.encryption.KeyProperty.getDatabaseEncryptionKey;
+
 @Repository
 public class AuthenticatedUserProvider {
 
@@ -67,11 +69,21 @@ public Optional<IAuthenticatedUser> findByUsername(String username) {
             guest.setRoles(Collections.singleton(GUEST_ROLE));
             return Optional.of(guest);
         }
-        final Optional<AuthenticatedUser> authenticatedUser = authenticatedUserRepository
-                .findByUsernameHash(username);
-        if (authenticatedUser.isPresent()) {
-            authenticatedUser.get().setUsernameHash(authenticatedUser.get().getUsername());
-            return Optional.of(authenticatedUser.get());
+        if (getDatabaseEncryptionKey() != null) {
+            //Username is encrypted, use hash
+            final Optional<AuthenticatedUser> authenticatedUser = authenticatedUserRepository
+                    .findByUsernameHash(username);
+            if (authenticatedUser.isPresent()) {
+                authenticatedUser.get().setUsernameHash(authenticatedUser.get().getUsername());
+                return Optional.of(authenticatedUser.get());
+            }
+        } else {
+            //Username is not encrypted, use username for compatibility with old databases.
+            final Optional<AuthenticatedUser> authenticatedUser = authenticatedUserRepository
+                    .findByUsername(username);
+            if (authenticatedUser.isPresent()) {
+                return Optional.of(authenticatedUser.get());
+            }
         }
         final Optional<Participant> participant = participantProvider.findByTokenUsername(username);
         if (participant.isPresent()) {
diff --git a/backend/kendo-tournament-persistence/src/main/java/com/softwaremagico/kt/persistence/repositories/AuthenticatedUserRepository.java b/backend/kendo-tournament-persistence/src/main/java/com/softwaremagico/kt/persistence/repositories/AuthenticatedUserRepository.java
index 439434ac3..dc075bd5e 100644
--- a/backend/kendo-tournament-persistence/src/main/java/com/softwaremagico/kt/persistence/repositories/AuthenticatedUserRepository.java
+++ b/backend/kendo-tournament-persistence/src/main/java/com/softwaremagico/kt/persistence/repositories/AuthenticatedUserRepository.java
@@ -32,5 +32,6 @@
 @Transactional
 public interface AuthenticatedUserRepository extends JpaRepository<AuthenticatedUser, Integer> {
 
+    Optional<AuthenticatedUser> findByUsername(String username);
     Optional<AuthenticatedUser> findByUsernameHash(String username);
 }