User interface prompt to create vault

hub/src/main/java/cloud/katta/crypto/uvf/UvfJWKCallback.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2025 shift7 GmbH. All rights reserved.
+ */
+
+package cloud.katta.crypto.uvf;
+
+import ch.cyberduck.core.Host;
+import ch.cyberduck.core.LoginOptions;
+import ch.cyberduck.core.exception.LoginCanceledException;
+import ch.cyberduck.core.vault.JWKCallback;
+import ch.cyberduck.core.vault.JWKCredentials;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.nimbusds.jose.jwk.JWK;
+
+public class UvfJWKCallback implements JWKCallback {
+
+    private final JWK key;
+
+    public UvfJWKCallback(final JWK key) throws JsonProcessingException {
+        this.key = key;
+    }
+
+    @Override
+    public void close(final String input) {
+        //
+    }
+
+    @Override
+    public JWKCredentials prompt(final Host bookmark, final String title, final String reason, final LoginOptions options) throws LoginCanceledException {
+        return new JWKCredentials(key);
+    }
+}

hub/src/main/java/cloud/katta/crypto/uvf/VaultIdMetadataUVFProvider.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2025 shift7 GmbH. All rights reserved.
+ */
+
+package cloud.katta.crypto.uvf;
+
+import ch.cyberduck.core.Host;
+import ch.cyberduck.core.HostUrlProvider;
+import ch.cyberduck.core.cryptomator.impl.uvf.VaultMetadataUVFProvider;
+import ch.cyberduck.core.vault.VaultMetadataProvider;
+
+import java.nio.charset.StandardCharsets;
+import java.util.UUID;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.nimbusds.jose.JOSEException;
+
+public class VaultIdMetadataUVFProvider implements VaultMetadataUVFProvider {
+
+    private final UUID vaultId;
+    private final UvfMetadataPayload.UniversalVaultFormatJWKS jwks;
+    private final byte[] vaultMetadata;
+    private final byte[] rootDirectoryMetadata;
+    private final String hashedRootDirId;
+
+    public VaultIdMetadataUVFProvider(final Host storage, final UUID vaultId,
+                                      final UvfMetadataPayload.UniversalVaultFormatJWKS jwks, final UvfMetadataPayload vaultMetadata) throws JOSEException, JsonProcessingException {
+        this(vaultId, jwks, vaultMetadata.encrypt(
+                        String.format("%s/api", new HostUrlProvider(false, true).get(storage)),
+                        vaultId,
+                        jwks.toJWKSet()
+                ).getBytes(StandardCharsets.US_ASCII),
+                vaultMetadata.computeRootDirUvf(),
+                vaultMetadata.computeRootDirIdHash()
+        );
+    }
+
+    public VaultIdMetadataUVFProvider(final UUID vaultId, final UvfMetadataPayload.UniversalVaultFormatJWKS jwks, final byte[] vaultMetadata, final byte[] rootDirectoryMetadata, final String hashedRootDirId) {
+        this.vaultId = vaultId;
+        this.jwks = jwks;
+        this.vaultMetadata = vaultMetadata;
+        this.rootDirectoryMetadata = rootDirectoryMetadata;
+        this.hashedRootDirId = hashedRootDirId;
+    }
+
+    public static VaultIdMetadataUVFProvider cast(VaultMetadataProvider provider) {
+        if(provider instanceof VaultIdMetadataUVFProvider) {
+            return (VaultIdMetadataUVFProvider) provider;
+        }
+        else {
+            throw new IllegalArgumentException("Unsupported metadata type " + provider.getClass());
+        }
+    }
+
+    public UUID getVaultId() {
+        return vaultId;
+    }
+
+    public UvfMetadataPayload.UniversalVaultFormatJWKS getJwks() {
+        return jwks;
+    }
+
+    @Override
+    public byte[] getMetadata() {
+        return vaultMetadata;
+    }
+
+    @Override
+    public byte[] getRootDirectoryMetadata() {
+        return rootDirectoryMetadata;
+    }
+
+    @Override
+    public String getDirPath() {
+        return hashedRootDirId;
+    }
+}

hub/src/main/java/cloud/katta/protocols/hub/HubStorageLocationService.java

@@ -121,7 +121,7 @@ public UvfMetadataPayload toUvfMetadataPayload(final Path bucket) {
                             .provider(this.getProfile())
                             .defaultPath(bucket.getAbsolute())
                             .region(this.getRegion())
-                            .nickname(null != bucket.attributes().getDisplayname() ? bucket.attributes().getDisplayname() : "Vault"))
+                            .nickname(bucket.attributes().getDisplayname()))
                     .withAutomaticAccessGrant(new VaultMetadataJWEAutomaticAccessGrantDto()
                             .enabled(true)
                             .maxWotDepth(null));

hub/src/main/java/cloud/katta/protocols/hub/HubUVFVault.java

@@ -7,26 +7,19 @@
 import ch.cyberduck.core.DisabledCancelCallback;
 import ch.cyberduck.core.DisabledHostKeyCallback;
 import ch.cyberduck.core.Host;
-import ch.cyberduck.core.HostUrlProvider;
 import ch.cyberduck.core.LoginCallback;
 import ch.cyberduck.core.PasswordCallback;
 import ch.cyberduck.core.Path;
-import ch.cyberduck.core.PathAttributes;
 import ch.cyberduck.core.Session;
-import ch.cyberduck.core.cryptomator.ContentWriter;
-import ch.cyberduck.core.cryptomator.UVFVault;
+import ch.cyberduck.core.cryptomator.AbstractVault;
+import ch.cyberduck.core.cryptomator.impl.uvf.CryptoVault;
 import ch.cyberduck.core.exception.BackgroundException;
 import ch.cyberduck.core.exception.InteroperabilityException;
 import ch.cyberduck.core.exception.UnsupportedException;
-import ch.cyberduck.core.features.AttributesFinder;
-import ch.cyberduck.core.features.Directory;
-import ch.cyberduck.core.features.Write;
 import ch.cyberduck.core.preferences.HostPreferencesFactory;
-import ch.cyberduck.core.preferences.PreferencesFactory;
 import ch.cyberduck.core.proxy.ProxyFactory;
 import ch.cyberduck.core.s3.S3Session;
-import ch.cyberduck.core.transfer.TransferStatus;
-import ch.cyberduck.core.vault.VaultCredentials;
+import ch.cyberduck.core.vault.VaultMetadataProvider;
 import ch.cyberduck.core.vault.VaultUnlockCancelException;
 
 import org.apache.logging.log4j.LogManager;
@@ -35,7 +28,6 @@
 
 import java.nio.charset.StandardCharsets;
 import java.util.Collections;
-import java.util.EnumSet;
 import java.util.UUID;
 
 import cloud.katta.client.ApiException;
@@ -44,8 +36,7 @@
 import cloud.katta.client.model.VaultDto;
 import cloud.katta.core.DeviceSetupCallback;
 import cloud.katta.crypto.UserKeys;
-import cloud.katta.crypto.uvf.UvfMetadataPayload;
-import cloud.katta.crypto.uvf.UvfMetadataPayloadPasswordCallback;
+import cloud.katta.crypto.uvf.VaultIdMetadataUVFProvider;
 import cloud.katta.protocols.hub.exceptions.HubExceptionMappingService;
 import cloud.katta.protocols.s3.S3AssumeRoleProtocol;
 import com.fasterxml.jackson.core.JsonProcessingException;
@@ -54,12 +45,9 @@
 /**
  * Unified vault format (UVF) implementation for Katta
  */
-public class HubUVFVault extends UVFVault {
+public class HubUVFVault extends CryptoVault {
     private static final Logger log = LogManager.getLogger(HubUVFVault.class);
 
-    private final UUID vaultId;
-    private final UvfMetadataPayload vaultMetadata;
-
     /**
      * Storage connection only available after loading vault
      */
@@ -68,17 +56,13 @@ public class HubUVFVault extends UVFVault {
 
     /**
      *
-     * @param storage       Storage connection
-     * @param vaultId       Vault Id
-     * @param vaultMetadata Vault UVF metadata
-     * @param prompt        Login prompt to access storage
+     * @param storage Storage connection
+     * @param bucket  Vault UVF metadata
+     * @param prompt  Login prompt to access storage
      */
-    public HubUVFVault(final Session<?> storage, final UUID vaultId, final UvfMetadataPayload vaultMetadata, final LoginCallback prompt) {
-        super(new Path(vaultMetadata.storage().getDefaultPath(), EnumSet.of(Path.Type.directory, Path.Type.volume),
-                new PathAttributes().setDisplayname(vaultMetadata.storage().getNickname())));
+    public HubUVFVault(final Session<?> storage, final Path bucket, final LoginCallback prompt) {
+        super(bucket);
         this.storage = storage;
-        this.vaultId = vaultId;
-        this.vaultMetadata = vaultMetadata;
         this.login = prompt;
     }
 
@@ -115,36 +99,32 @@ public synchronized void close() {
     }
 
     @Override
-    public Path create(final Session<?> session, final String region, final VaultCredentials noop) throws BackgroundException {
+    public AbstractVault create(final Session<?> session, final String region, final VaultMetadataProvider metadata) throws BackgroundException {
         try {
             final HubSession hub = HubSession.coerce(session);
-            log.debug("Created metadata JWE {}", vaultMetadata);
-            final UvfMetadataPayload.UniversalVaultFormatJWKS jwks = UvfMetadataPayload.createKeys();
+            final Path home = this.getHome();
+            final UUID vaultId = VaultIdMetadataUVFProvider.cast(metadata).getVaultId();
             final VaultDto vaultDto = new VaultDto()
                     .id(vaultId)
-                    .name(vaultMetadata.storage().getNickname())
+                    .name(home.attributes().getDisplayname())
                     .description(null)
                     .archived(false)
                     .creationTime(DateTime.now())
-                    .uvfMetadataFile(vaultMetadata.encrypt(
-                            String.format("%s/api", new HostUrlProvider(false, true).get(session.getHost())),
-                            vaultId,
-                            jwks.toJWKSet()
-                    ))
-                    .uvfKeySet(jwks.serializePublicRecoverykey());
+                    .uvfMetadataFile(new String(VaultIdMetadataUVFProvider.cast(metadata).getMetadata(), StandardCharsets.US_ASCII))
+                    .uvfKeySet(VaultIdMetadataUVFProvider.cast(metadata).getJwks().serializePublicRecoverykey());
             // Create vault in Hub
             final VaultResourceApi vaultResourceApi = new VaultResourceApi(hub.getClient());
             log.debug("Create vault {}", vaultDto);
-            vaultResourceApi.apiVaultsVaultIdPut(vaultDto.getId(), vaultDto,
+            vaultResourceApi.apiVaultsVaultIdPut(vaultId, vaultDto,
                     storage.getHost().getProtocol().isRoleConfigurable() && !S3Session.isAwsHostname(storage.getHost().getHostname()),
                     storage.getHost().getProtocol().isRoleConfigurable() && S3Session.isAwsHostname(storage.getHost().getHostname()));
             // Upload JWE
             log.debug("Grant access to vault {}", vaultDto);
             final UserDto userDto = hub.getMe();
             final DeviceSetupCallback setup = login.getFeature(DeviceSetupCallback.class);
             final UserKeys userKeys = hub.getUserKeys(setup);
-            vaultResourceApi.apiVaultsVaultIdAccessTokensPost(vaultDto.getId(),
-                    Collections.singletonMap(userDto.getId(), jwks.toOwnerAccessToken().encryptForUser(userKeys.ecdhKeyPair().getPublic())));
+            vaultResourceApi.apiVaultsVaultIdAccessTokensPost(vaultId,
+                    Collections.singletonMap(userDto.getId(), VaultIdMetadataUVFProvider.cast(metadata).getJwks().toOwnerAccessToken().encryptForUser(userKeys.ecdhKeyPair().getPublic())));
             // Upload vault template to storage
             log.debug("Connect to {}", storage);
             final Host configuration = storage.getHost();
@@ -156,36 +136,8 @@ public Path create(final Session<?> session, final String region, final VaultCre
             // No role chaining when creating vault
             configuration.setProperty(S3AssumeRoleProtocol.S3_ASSUMEROLE_ROLEARN_TAG, null);
             storage.open(ProxyFactory.get(), new DisabledHostKeyCallback(), login, new DisabledCancelCallback());
-            final Path vault;
-            if(false) {
-                log.debug("Upload vault template to {}", storage);
-                return super.create(storage,
-                        HubStorageLocationService.StorageLocation.fromIdentifier(region).getRegion(), noop);
-            }
-            else { // Obsolete when implemented in super
-                final Directory<?> directory = (Directory<?>) storage._getFeature(Directory.class);
-                final Path home = this.getHome();
-                log.debug("Create vault root directory at {}", home);
-                final TransferStatus status = (new TransferStatus()).setRegion(HubStorageLocationService.StorageLocation.fromIdentifier(region).getRegion());
-                vault = directory.mkdir(storage._getFeature(Write.class), home, status);
-
-                final String hashedRootDirId = vaultMetadata.computeRootDirIdHash();
-                final Path dataDir = new Path(vault, "d", EnumSet.of(Path.Type.directory));
-                final Path firstLevel = new Path(dataDir, hashedRootDirId.substring(0, 2), EnumSet.of(Path.Type.directory));
-                final Path secondLevel = new Path(firstLevel, hashedRootDirId.substring(2), EnumSet.of(Path.Type.directory));
-
-                directory.mkdir(storage._getFeature(Write.class), dataDir, status);
-                directory.mkdir(storage._getFeature(Write.class), firstLevel, status);
-                directory.mkdir(storage._getFeature(Write.class), secondLevel, status);
-
-                // vault.uvf
-                new ContentWriter(storage).write(new Path(home, PreferencesFactory.get().getProperty("cryptomator.vault.config.filename"),
-                        EnumSet.of(Path.Type.file, Path.Type.vault)), vaultDto.getUvfMetadataFile().getBytes(StandardCharsets.US_ASCII));
-                // dir.uvf
-                new ContentWriter(storage).write(new Path(secondLevel, "dir.uvf", EnumSet.of(Path.Type.file)),
-                        vaultMetadata.computeRootDirUvf());
-            }
-            return vault;
+            log.debug("Upload vault template to {}", storage);
+            return super.create(storage, HubStorageLocationService.StorageLocation.fromIdentifier(region).getRegion(), metadata);
         }
         catch(JOSEException | JsonProcessingException e) {
             throw new InteroperabilityException(e.getMessage(), e);
@@ -199,38 +151,29 @@ public Path create(final Session<?> session, final String region, final VaultCre
      *
      * @param session Hub Connection
      * @param prompt  Return user keys
+     * @param metadata  metadata
      * @return Vault configuration with storage connection
      */
     @Override
-    public HubUVFVault load(final Session<?> session, final PasswordCallback prompt) throws BackgroundException {
+    public HubUVFVault load(final Session<?> session, final PasswordCallback prompt, final VaultMetadataProvider metadata) throws BackgroundException {
+        log.debug("Connect to {}", storage);
         try {
-            log.debug("Connect to {}", storage);
-            try {
-                storage.open(ProxyFactory.get(), new DisabledHostKeyCallback(), login, new DisabledCancelCallback());
-            }
-            catch(BackgroundException e) {
-                log.warn("Skip loading vault with failure {} connecting to storage", e.toString());
-                throw new VaultUnlockCancelException(this, e);
-            }
-            final Path home = this.getHome();
-            home.setAttributes(storage.getFeature(AttributesFinder.class).find(home)
-                    .setDisplayname(vaultMetadata.storage().getNickname()));
-            log.debug("Initialize vault {} with metadata {}", this, vaultMetadata);
-            // Initialize cryptors
-            super.load(storage, new UvfMetadataPayloadPasswordCallback(vaultMetadata.toJSON()));
-            return this;
+            storage.open(ProxyFactory.get(), new DisabledHostKeyCallback(), login, new DisabledCancelCallback());
         }
-        catch(JsonProcessingException e) {
-            throw new InteroperabilityException(e.getMessage(), e);
+        catch(BackgroundException e) {
+            log.warn("Skip loading vault with failure {} connecting to storage", e.toString());
+            throw new VaultUnlockCancelException(this, e);
         }
+        log.debug("Initialize vault {}", this);
+        // Initialize cryptors
+        super.load(storage, prompt, metadata);
+        return this;
     }
 
     @Override
     public String toString() {
         final StringBuilder sb = new StringBuilder("HubUVFVault{");
-        sb.append("vaultId=").append(vaultId);
-        sb.append(", vaultMetadata=").append(vaultMetadata);
-        sb.append(", storage=").append(storage);
+        sb.append("storage=").append(storage);
         sb.append('}');
         return sb.toString();
     }