CB-5946 force lowercase userid (#3074)

Co-authored-by: Evgenia <139753579+EvgeniaBzzz@users.noreply.github.com>

server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/server/CBApplication.java

@@ -529,7 +529,7 @@ public abstract class CBApplication<T extends CBServerConfig> extends
         }
 
         if (isConfigurationMode()) {
-            finishSecurityServiceConfiguration(adminName, adminPassword, authInfoList);
+            finishSecurityServiceConfiguration(adminName.toLowerCase(), adminPassword, authInfoList);
         }
 
         // Save runtime configuration

server/bundles/io.cloudbeaver.service.security/src/io/cloudbeaver/service/security/CBEmbeddedSecurityController.java

@@ -851,8 +851,13 @@ public class CBEmbeddedSecurityController<T extends WebAuthApplication>
         }
         List<String[]> transformedCredentials;
         WebAuthProviderDescriptor authProvider = getAuthProvider(authProviderId);
+        if (authProvider.isCaseInsensitive() && !isSubjectExists(userId) && isSubjectExists(userId.toLowerCase())) {
+            log.warn("User with id '" + userId + "' not found, credentials will be set for the user: " + userId.toLowerCase());
+            userId = userId.toLowerCase();
+        }
         try {
             SMAuthCredentialsProfile credProfile = getCredentialProfileByParameters(authProvider, credentials.keySet());
+            String finalUserId = userId;
             transformedCredentials = credentials.entrySet().stream().map(cred -> {
                 String propertyName = cred.getKey();
                 AuthPropertyDescriptor property = credProfile.getCredentialParameter(propertyName);
@@ -860,7 +865,7 @@ public class CBEmbeddedSecurityController<T extends WebAuthApplication>
                     return null;
                 }
                 String encodedValue = CommonUtils.toString(cred.getValue());
-                encodedValue = property.getEncryption().encrypt(userId, encodedValue);
+                encodedValue = property.getEncryption().encrypt(finalUserId, encodedValue);
                 return new String[]{propertyName, encodedValue};
             }).toList();
         } catch (Exception e) {

server/bundles/io.cloudbeaver.service.security/src/io/cloudbeaver/service/security/db/CBDatabaseInitialData.java

@@ -17,6 +17,7 @@
 package io.cloudbeaver.service.security.db;
 
 import org.jkiss.dbeaver.model.security.user.SMTeam;
+import org.jkiss.utils.CommonUtils;
 
 import java.util.List;
 
@@ -26,7 +27,7 @@ class CBDatabaseInitialData {
     private List<SMTeam> teams;
 
     public String getAdminName() {
-        return adminName;
+        return CommonUtils.isEmpty(adminName) ? null : adminName.toLowerCase();
     }
 
     public String getAdminPassword() {