implemented EncryptedUserService

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

de.srsoftware.oidc.api/src/main/java/de/srsoftware/oidc/api/UserService.java

@@ -29,6 +29,6 @@ public interface UserService {
 	public Optional<User> load(String id);
 	public Optional<User> load(String username, String password);
 	public boolean	      passwordMatches(String plaintextPassword, User user);
-	public <T extends UserService> T save(User user);
+	public UserService    save(User user);
-	public <T extends UserService> T updatePassword(User user, String plaintextPassword);
+	public UserService    updatePassword(User user, String plaintextPassword);
 }

de.srsoftware.oidc.api/src/main/java/de/srsoftware/oidc/api/data/User.java

@@ -96,6 +96,10 @@ public final class User {
 		return Optional.of(user);
 	}
 
+	public Set<Permission> permissions() {
+		return Set.copyOf(permissions);
+	}
+
 	public String realName() {
 		return realName;
 	}

de.srsoftware.oidc.app/src/main/java/de/srsoftware/oidc/app/Application.java

@@ -19,6 +19,7 @@ import de.srsoftware.oidc.api.*;
 import de.srsoftware.oidc.api.data.User;
 import de.srsoftware.oidc.backend.*;
 import de.srsoftware.oidc.datastore.encrypted.EncryptedMailConfig;
+import de.srsoftware.oidc.datastore.encrypted.EncryptedUserService;
 import de.srsoftware.oidc.datastore.file.FileStoreProvider;
 import de.srsoftware.oidc.datastore.file.PlaintextKeyStore;
 import de.srsoftware.oidc.datastore.sqlite.*;
@@ -128,10 +129,18 @@ public class Application {
 
 	private static UserService setupUserService(Configuration config, Path defaultFile, FileStoreProvider fileStoreProvider, UuidHasher passHasher) throws SQLException {
 		var userStorageLocation = new File(config.getOrDefault("user_storage",defaultFile));
-		return switch (extension(userStorageLocation).toLowerCase()){
+		var userService =  switch (extension(userStorageLocation).toLowerCase()){
 			case "db", "sqlite", "sqlite3" -> new SqliteUserService(connectionProvider.get(userStorageLocation),passHasher);
 			default -> fileStoreProvider.get(userStorageLocation);
 		};
+
+		Optional<String>            encryptionKey = config.get(ENCRYPTION_KEY);
+
+		if (encryptionKey.isPresent()){
+			var salt = config.getOrDefault(SALT,uuid());
+			userService = new EncryptedUserService(userService,encryptionKey.get(),salt,passHasher);
+		}
+		return userService;
 	}
 
 	private static KeyStorage setupKeyStore(Configuration config, Path defaultConfigDir) throws SQLException {

de.srsoftware.oidc.datastore.encrypted/build.gradle

@@ -15,7 +15,7 @@ dependencies {
     implementation project(':de.srsoftware.oidc.api')
     implementation 'com.sun.mail:jakarta.mail:2.0.1'
     implementation project(':de.srsoftware.utils')
-
+    testImplementation project(path: ':de.srsoftware.oidc.api', configuration: "testBundle")
 }
 
 test {

de.srsoftware.oidc.datastore.encrypted/src/main/java/de/srsoftware/oidc/datastore/encrypted/EncryptedUserService.java

@@ -1,21 +1,25 @@
+/* © SRSoftware 2024 */
 package de.srsoftware.oidc.datastore.encrypted;
 
+import static java.util.Optional.empty;
+
 import de.srsoftware.oidc.api.UserService;
 import de.srsoftware.oidc.api.data.AccessToken;
 import de.srsoftware.oidc.api.data.User;
-import de.srsoftware.utils.Optionals;
+import de.srsoftware.utils.PasswordHasher;
-
+import java.util.HashMap;
 import java.util.List;
 import java.util.Optional;
 import java.util.Set;
-import java.util.stream.Collectors;
 
 public class EncryptedUserService extends EncryptedConfig implements UserService {
 	private final UserService    backend;
+	private final PasswordHasher hasher;
 
-	EncryptedUserService(UserService backend, String key, String salt){
+	public EncryptedUserService(UserService backend, String key, String salt, PasswordHasher passHasher) {
-		super(key,salt);
+		super(key, salt);
 		this.backend = backend;
+		hasher       = passHasher;
 	}
 
 	@Override
@@ -28,18 +32,28 @@ public class EncryptedUserService extends EncryptedConfig implements UserService
 		return backend.consumeToken(accessToken).map(this::decrypt);
 	}
 
-	public User decrypt(User secret){
+	public User decrypt(User secret) {
-return secret;
+		var decrypted = new User(decrypt(secret.username()), decrypt(secret.hashedPassword()), decrypt(secret.realName()), decrypt(secret.email()), decrypt(secret.uuid())).sessionDuration(secret.sessionDuration());
+		secret.permissions().forEach(decrypted::add);
+		return decrypted;
 	}
 
 	@Override
 	public UserService delete(User user) {
-		backend.delete(encrypt(user));
+		for (var encryptedUser : backend.list()) {
+			var decryptedUser = decrypt(encryptedUser);
+			if (decryptedUser.uuid().equals(user.uuid())) {
+				backend.delete(encryptedUser);
+				break;
+			}
+		}
 		return this;
 	}
 
-	public User encrypt(User plain){
+	public User encrypt(User plain) {
-		return plain;
+		var encrypted = new User(encrypt(plain.username()), encrypt(plain.hashedPassword()), encrypt(plain.realName()), encrypt(plain.email()), encrypt(plain.uuid())).sessionDuration(plain.sessionDuration());
+		plain.permissions().forEach(encrypted::add);
+		return encrypted;
 	}
 
 	@Override
@@ -60,33 +74,50 @@ return secret;
 
 	@Override
 	public Set<User> find(String idOrEmail) {
-		return backend.find(idOrEmail).stream().map(this::decrypt).collect(Collectors.toSet());
+		if (idOrEmail == null || idOrEmail.isBlank()) return Set.of();
+		var matching = new HashMap<String, User>();
+		for (var encryptedUser : backend.list()) {
+			var decryptedUser = decrypt(encryptedUser);
+			if (idOrEmail.equals(decryptedUser.uuid()) || idOrEmail.equals(decryptedUser.email()) || idOrEmail.equals(decryptedUser.username()) || decryptedUser.realName().contains(idOrEmail)) matching.put(decryptedUser.uuid(), decryptedUser);
+		}
+		return Set.copyOf(matching.values());
 	}
 
 	@Override
 	public Optional<User> load(String id) {
-		return backend.load(id).map(this::decrypt);
+		if (id == null || id.isBlank()) return empty();
+		for (var encryptedUser : backend.list()) {
+			var decryptedUser = decrypt(encryptedUser);
+			if (id.equals(decryptedUser.uuid())) return Optional.of(decryptedUser);
+		}
+		return empty();
 	}
 
 	@Override
 	public Optional<User> load(String username, String password) {
-		return backend.load(encrypt(username),encrypt(password));
+		if (username == null || username.isBlank()) return empty();
+		for (var encryptedUser : backend.list()) {
+			var decryptedUser = decrypt(encryptedUser);
+			if (username.equals(decryptedUser.username()) && hasher.matches(password, decryptedUser.hashedPassword())) return Optional.of(decryptedUser);
+		}
+		return empty();
 	}
 
 	@Override
 	public boolean passwordMatches(String plaintextPassword, User user) {
-		return backend.passwordMatches(encrypt(plaintextPassword),encrypt(user));
+		return hasher.matches(plaintextPassword, user.hashedPassword());
 	}
 
 	@Override
-	public EncryptedUserService save(User user) {
+	public UserService save(User user) {
+		delete(user);
 		backend.save(encrypt(user));
 		return this;
 	}
 
 	@Override
-	public EncryptedUserService updatePassword(User user, String plaintextPassword) {
+	public UserService updatePassword(User user, String plaintextPassword) {
-		backend.updatePassword(encrypt(user),encrypt(plaintextPassword));
+		var pass = hasher.hash(plaintextPassword, user.uuid());
-		return this;
+		return save(user.hashedPassword(pass));
 	}
 }

de.srsoftware.oidc.datastore.encrypted/src/test/java/EncryptedUserServiceTest.java

@@ -0,0 +1,113 @@
+/* © SRSoftware 2024 */
+import static de.srsoftware.utils.Optionals.nullable;
+import static de.srsoftware.utils.Strings.uuid;
+
+import de.srsoftware.oidc.api.UserService;
+import de.srsoftware.oidc.api.UserServiceTest;
+import de.srsoftware.oidc.api.data.AccessToken;
+import de.srsoftware.oidc.api.data.User;
+import de.srsoftware.oidc.datastore.encrypted.EncryptedUserService;
+import de.srsoftware.utils.PasswordHasher;
+import java.io.File;
+import java.util.*;
+import java.util.stream.Collectors;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+
+public class EncryptedUserServiceTest extends UserServiceTest {
+	private class InMemoryUserService implements UserService {
+		private final PasswordHasher<String> hasher;
+		private HashMap<String, User>	     users = new HashMap<>();
+
+		public InMemoryUserService(PasswordHasher<String> hasher) {
+			this.hasher = hasher;
+		}
+
+		@Override
+		public AccessToken accessToken(User user) {
+			return null;
+		}
+
+		@Override
+		public Optional<User> consumeToken(String accessToken) {
+			return Optional.empty();
+		}
+
+		@Override
+		public UserService delete(User user) {
+			users.remove(user.uuid());
+			return this;
+		}
+
+		@Override
+		public Optional<User> forToken(String accessToken) {
+			return Optional.empty();
+		}
+
+		@Override
+		public UserService init(User defaultUser) {
+			if (users.isEmpty()) users.put(defaultUser.uuid(), defaultUser);
+			return this;
+		}
+
+		@Override
+		public List<User> list() {
+			return List.copyOf(users.values());
+		}
+
+		@Override
+		public Set<User> find(String idOrEmail) {
+			return list().stream().filter(user -> user.uuid().equals(idOrEmail) || user.email().equals(idOrEmail)).collect(Collectors.toSet());
+		}
+
+		@Override
+		public Optional<User> load(String id) {
+			return nullable(users.get(id));
+		}
+
+		@Override
+		public Optional<User> load(String username, String password) {
+			return users.values().stream().filter(user -> user.username().equals(username) && passwordMatches(password, user)).findAny();
+		}
+
+		@Override
+		public boolean passwordMatches(String plaintextPassword, User user) {
+			return hasher.matches(plaintextPassword, user.hashedPassword());
+		}
+
+		@Override
+		public UserService save(User user) {
+			users.put(user.uuid(), user);
+			return this;
+		}
+
+		@Override
+		public UserService updatePassword(User user, String plaintextPassword) {
+			var old = users.get(user.uuid());
+			save(user.hashedPassword(hasher.hash(plaintextPassword, uuid())));
+			return this;
+		}
+	}
+	private File	    storage = new File("/tmp/" + UUID.randomUUID());
+	private UserService userService;
+	private String	    key, salt;
+
+	@AfterEach
+	public void tearDown() {
+		if (storage.exists()) storage.delete();
+	}
+
+	@BeforeEach
+	public void setup() {
+		tearDown();
+		key	            = uuid();
+		salt	            = uuid();
+		InMemoryUserService backend = new InMemoryUserService(hasher());
+		userService	            = new EncryptedUserService(backend, key, salt, hasher());
+	}
+
+	@Override
+	protected UserService userService() {
+		return userService;
+	}
+}