feat: Enhance configuration forms and validation for storage providers

- Added hidden input fields to ensure critical values are submitted with the form for S3 and other storage providers.
- Implemented JavaScript functionality to auto-populate hidden fields based on user input for S3-compatible providers.
- Updated validation logic for WebDAV and SMB providers to ensure required fields are checked.
- Enhanced the configuration handler to explicitly set fields for various storage provider types, including S3, Wasabi, MinIO, and B2.
- Improved error handling and logging for form submissions and provider credential management.

components/config_form.templ

@@ -457,6 +457,29 @@ templ ConfigForm(ctx context.Context, data ConfigFormData) {
 
 							// Initialize command requirements
 							updateCommandRequirements();
+							
+							// Initialize hidden input fields with their values to ensure they're included in form submission
+							document.getElementById('hidden_name').value = name;
+							document.getElementById('hidden_source_path').value = sourcePath;
+							document.getElementById('hidden_destination_path').value = destinationPath;
+							
+							// Initialize S3 source fields if applicable
+							if (sourceType === 's3' || sourceType === 'b2' || sourceType === 'wasabi' || sourceType === 'minio') {
+								document.getElementById('hidden_source_access_key').value = sourceAccessKey;
+								document.getElementById('hidden_source_secret_key').value = sourceSecretKey;
+								document.getElementById('hidden_source_endpoint').value = sourceEndpoint;
+								document.getElementById('hidden_source_bucket').value = sourceBucket;
+								document.getElementById('hidden_source_region').value = sourceRegion;
+							}
+							
+							// Initialize S3 destination fields if applicable
+							if (destinationType === 's3' || destinationType === 'b2' || destinationType === 'wasabi' || destinationType === 'minio') {
+								document.getElementById('hidden_dest_access_key').value = destAccessKey;
+								document.getElementById('hidden_dest_secret_key').value = destSecretKey;
+								document.getElementById('hidden_dest_endpoint').value = destEndpoint;
+								document.getElementById('hidden_dest_bucket').value = destBucket;
+								document.getElementById('hidden_dest_region').value = destRegion;
+							}
 						})"
 						x-effect="if (sourceType === 'sftp' && (sourcePort === 0 || sourcePort === 21 || sourcePort === 23)) {
 							sourcePort = 22;
@@ -478,8 +501,50 @@ templ ConfigForm(ctx context.Context, data ConfigFormData) {
 							console.log('Updating destination port to 23 for Hetzner');
 						}"
 						@formvalidation
+						@submit="
+							// Basic fields
+							document.getElementById('hidden_name').value = name; 
+							document.getElementById('hidden_source_path').value = sourcePath; 
+							document.getElementById('hidden_destination_path').value = destinationPath;
+							
+							// S3 source fields
+							if (sourceType === 's3' || sourceType === 'b2' || sourceType === 'wasabi' || sourceType === 'minio') {
+								document.getElementById('hidden_source_access_key').value = sourceAccessKey;
+								document.getElementById('hidden_source_secret_key').value = sourceSecretKey;
+								document.getElementById('hidden_source_endpoint').value = sourceEndpoint;
+								document.getElementById('hidden_source_bucket').value = sourceBucket;
+								document.getElementById('hidden_source_region').value = sourceRegion;
+							}
+							
+							// S3 destination fields
+							if (destinationType === 's3' || destinationType === 'b2' || destinationType === 'wasabi' || destinationType === 'minio') {
+								document.getElementById('hidden_dest_access_key').value = destAccessKey;
+								document.getElementById('hidden_dest_secret_key').value = destSecretKey;
+								document.getElementById('hidden_dest_endpoint').value = destEndpoint;
+								document.getElementById('hidden_dest_bucket').value = destBucket;
+								document.getElementById('hidden_dest_region').value = destRegion;
+							}
+						"
 						>
 						
+						<!-- Hidden fields to ensure values are submitted with the form -->
+						<input type="hidden" id="hidden_name" name="name" />
+						<input type="hidden" id="hidden_source_path" name="source_path" />
+						<input type="hidden" id="hidden_destination_path" name="destination_path" />
+						
+						<!-- Hidden fields for S3-compatible providers -->
+						<input type="hidden" id="hidden_source_access_key" name="source_access_key" />
+						<input type="hidden" id="hidden_source_secret_key" name="source_secret_key" />
+						<input type="hidden" id="hidden_source_endpoint" name="source_endpoint" /> 
+						<input type="hidden" id="hidden_source_bucket" name="source_bucket" />
+						<input type="hidden" id="hidden_source_region" name="source_region" />
+						
+						<input type="hidden" id="hidden_dest_access_key" name="dest_access_key" />
+						<input type="hidden" id="hidden_dest_secret_key" name="dest_secret_key" />
+						<input type="hidden" id="hidden_dest_endpoint" name="dest_endpoint" />
+						<input type="hidden" id="hidden_dest_bucket" name="dest_bucket" />
+						<input type="hidden" id="hidden_dest_region" name="dest_region" />
+						
 						<!-- Form Error Container -->
 						<div id="form-errors" class="hidden p-4 mb-6 text-sm text-red-800 rounded-lg bg-red-50 dark:bg-red-800/20 dark:text-red-400 border border-red-200 dark:border-red-900" role="alert">
 							<div class="flex items-center mb-2">
@@ -510,6 +575,7 @@ templ ConfigForm(ctx context.Context, data ConfigFormData) {
 								id="name" 
 								name="name" 
 								x-model="name" 
+								@input="document.getElementById('hidden_name').value = name"
 								required 
 								aria-required="true"
 								class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
@@ -645,6 +711,7 @@ templ ConfigForm(ctx context.Context, data ConfigFormData) {
 											id="source_path" 
 											name="source_path" 
 											x-model="sourcePath"
+											@input="document.getElementById('hidden_source_path').value = sourcePath"
 											@blur="checkPath(sourcePath, 'source')"
 											class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full ps-10 p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
 											placeholder="/path/to/source"
@@ -775,6 +842,7 @@ templ ConfigForm(ctx context.Context, data ConfigFormData) {
 											id="destination_path" 
 											name="destination_path" 
 											x-model="destinationPath"
+											@input="document.getElementById('hidden_destination_path').value = destinationPath"
 											@blur="checkPath(destinationPath, 'dest')"
 											class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full ps-10 p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
 											placeholder="/path/to/destination"

components/storage_provider_form.templ

@@ -161,12 +161,12 @@ templ formFields(data StorageProviderFormData) {
 							selected="selected"
 						}
 					>OneDrive</option>
-					<option value="gdrive"
+					<option value="google_drive"
 						if data.Provider.Type == db.ProviderTypeGoogleDrive {
 							selected="selected"
 						}
 					>Google Drive</option>
-					<option value="gphotos"
+					<option value="google_photo"
 						if data.Provider.Type == db.ProviderTypeGooglePhoto {
 							selected="selected"
 						}
@@ -250,32 +250,60 @@ templ formFields(data StorageProviderFormData) {
 		
 		<!-- Endpoint -->
 		<div class="mb-4">
-			<label for="endpoint" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Endpoint <span class="text-red-500">*</span></label>
+			<label for="endpoint" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">
-			<input type="text" id="endpoint" name="endpoint" value={ data.Provider.Endpoint } class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" placeholder="e.g., s3.amazonaws.com, s3.us-west-1.wasabisys.com" />
+				Endpoint 
+				<span id="endpoint-required" class="text-red-500">*</span>
+			</label>
+			<input type="text" id="endpoint" name="endpoint" value={ data.Provider.Endpoint } 
+				class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
+				placeholder="e.g., s3.amazonaws.com, s3.us-west-1.wasabisys.com" />
+			<p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+				Custom endpoint URL (only needed for non-standard regions or non-AWS S3-compatible services). Optional for B2.
+			</p>
 		</div>
 		
 		<!-- Region -->
 		<div class="mb-4">
-			<label for="region" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Region <span class="text-red-500">*</span></label>
+			<label for="region" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">
-			<input type="text" id="region" name="region" value={ data.Provider.Region } class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" placeholder="e.g., us-east-1, eu-central-1" />
+				Region 
+				<span id="region-required" class="text-red-500">*</span>
+			</label>
+			<input type="text" id="region" name="region" value={ data.Provider.Region } 
+				class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
+				placeholder="e.g., us-east-1, eu-central-1" />
+			<p class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+				AWS Region where your S3 bucket is located (e.g., us-east-1, eu-west-1). Optional for B2 and Wasabi.
+			</p>
 		</div>
 		
 		<!-- Bucket -->
 		<div class="mb-4">
 			<label for="bucket" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Bucket <span class="text-red-500">*</span></label>
-			<input type="text" id="bucket" name="bucket" value={ data.Provider.Bucket } class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" placeholder="Your bucket name" />
+			<input type="text" id="bucket" name="bucket" value={ data.Provider.Bucket } 
+				class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
+				placeholder="Your bucket name" />
+			<p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
+				Name of your S3 bucket (case-sensitive)
+			</p>
 		</div>
 		
 		<!-- Access Key -->
 		<div class="mb-4">
 			<label for="accessKey" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Access Key <span class="text-red-500">*</span></label>
-			<input type="text" id="accessKey" name="accessKey" value={ data.Provider.AccessKey } class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" placeholder="Your access key/key ID" />
+			<input type="text" id="accessKey" name="accessKey" value={ data.Provider.AccessKey } 
+				class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
+				placeholder="Your access key/key ID" />
+			<p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
+				Your AWS Access Key ID
+			</p>
 		</div>
 		
 		<!-- Secret Key -->
 		<div class="mb-4">
 			<label for="secretKey" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Secret Key <span class="text-red-500">*</span></label>
-			<input type="password" id="secretKey" name="secretKey" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" placeholder="Your secret access key" />
+			<input type="password" id="secretKey" name="secretKey" 
+				class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
+				placeholder="Your secret access key" />
 			if data.IsEdit {
 				<p class="mt-1 text-xs text-gray-500 dark:text-gray-400">Leave empty to keep the current secret key</p>
 			}
@@ -354,6 +382,17 @@ templ formFields(data StorageProviderFormData) {
 			</button>
 		</div>
 	</div>
+
+	<!-- Hidden fields for S3 form data to ensure it gets submitted correctly -->
+	<input type="hidden" id="hidden_endpoint" name="endpoint" value={ data.Provider.Endpoint } />
+	<input type="hidden" id="hidden_region" name="region" value={ data.Provider.Region } />
+	<input type="hidden" id="hidden_bucket" name="bucket" value={ data.Provider.Bucket } />
+	<input type="hidden" id="hidden_accessKey" name="accessKey" value={ data.Provider.AccessKey } />
+	<input type="hidden" id="hidden_secretKey" name="secretKey" />
+	
+	<!-- Hidden fields for Google Drive and Google Photos -->
+	<input type="hidden" id="hidden_clientID" name="clientID" value={ data.Provider.ClientID } />
+	<input type="hidden" id="hidden_clientSecret" name="clientSecret" />
 }
 
 // JavaScript helper for toggling provider fields
@@ -369,6 +408,133 @@ templ providerFormScript() {
 				// Mark the field as user-modified
 				this.dataset.userModified = 'true';
 			});
+			
+			// Add event listeners for S3 fields
+			document.getElementById('endpoint').addEventListener('input', function() {
+				document.getElementById('hidden_endpoint').value = this.value;
+			});
+			
+			document.getElementById('region').addEventListener('input', function() {
+				document.getElementById('hidden_region').value = this.value;
+			});
+			
+			document.getElementById('bucket').addEventListener('input', function() {
+				document.getElementById('hidden_bucket').value = this.value;
+			});
+			
+			document.getElementById('accessKey').addEventListener('input', function() {
+				document.getElementById('hidden_accessKey').value = this.value;
+			});
+			
+			document.getElementById('secretKey').addEventListener('input', function() {
+				document.getElementById('hidden_secretKey').value = this.value;
+			});
+			
+			// Add event listeners for Google Drive/Photos fields
+			document.getElementById('clientID').addEventListener('input', function() {
+				document.getElementById('hidden_clientID').value = this.value;
+			});
+			
+			document.getElementById('clientSecret').addEventListener('input', function() {
+				document.getElementById('hidden_clientSecret').value = this.value;
+			});
+			
+			// Add form submit listener to ensure all hidden fields are populated
+			const forms = document.querySelectorAll('form');
+			forms.forEach(form => {
+				form.addEventListener('submit', function(e) {
+					// Find active provider type
+					const providerType = document.getElementById('type').value;
+					
+					// If S3-compatible, update hidden fields
+					if (['s3', 'wasabi', 'minio', 'b2'].includes(providerType)) {
+						document.getElementById('hidden_endpoint').value = document.getElementById('endpoint').value;
+						document.getElementById('hidden_region').value = document.getElementById('region').value;
+						document.getElementById('hidden_bucket').value = document.getElementById('bucket').value;
+						document.getElementById('hidden_accessKey').value = document.getElementById('accessKey').value;
+						
+						// Make sure secretKey is always copied to the hidden field
+						// This is especially important for B2 which uses this as Application Key
+						const secretKeyValue = document.getElementById('secretKey').value;
+						document.getElementById('hidden_secretKey').value = secretKeyValue;
+						
+						// For validation - ensure we have appropriate fields for each provider type
+						if (providerType === 'b2') {
+							// B2 does not require region or endpoint
+							if (!document.getElementById('hidden_bucket').value) {
+								alert('Bucket name is required');
+								e.preventDefault();
+								return false;
+							}
+							if (!document.getElementById('hidden_accessKey').value) {
+								alert('Account ID is required');
+								e.preventDefault();
+								return false;
+							}
+							if (!secretKeyValue && !document.getElementById('hidden_secretKey').value) {
+								alert('Application Key is required');
+								e.preventDefault();
+								return false;
+							}
+						} else if (providerType === 'wasabi') {
+							// Wasabi does not require region
+							if (!document.getElementById('hidden_endpoint').value) {
+								alert('Endpoint is required for Wasabi');
+								e.preventDefault();
+								return false;
+							}
+							if (!document.getElementById('hidden_bucket').value) {
+								alert('Bucket name is required');
+								e.preventDefault();
+								return false;
+							}
+							if (!document.getElementById('hidden_accessKey').value) {
+								alert('Access key is required');
+								e.preventDefault();
+								return false;
+							}
+							if (!secretKeyValue && !document.getElementById('hidden_secretKey').value) {
+								alert('Secret key is required');
+								e.preventDefault();
+								return false;
+							}
+						}
+						
+						console.log('Submitting S3-compatible form with:', {
+							provider: providerType,
+							endpoint: document.getElementById('hidden_endpoint').value,
+							region: document.getElementById('hidden_region').value,
+							bucket: document.getElementById('hidden_bucket').value,
+							accessKey: document.getElementById('hidden_accessKey').value,
+							secretKey: document.getElementById('hidden_secretKey').value ? '[PRESENT]' : '[EMPTY]',
+							secretKeyLength: document.getElementById('hidden_secretKey').value.length
+						});
+					}
+					
+					// If Google Drive or Google Photos, update hidden fields
+					if (['google_drive', 'google_photo', 'onedrive'].includes(providerType)) {
+						document.getElementById('hidden_clientID').value = document.getElementById('clientID').value;
+						
+						// Make sure clientSecret is always copied to the hidden field
+						const clientSecretValue = document.getElementById('clientSecret').value;
+						document.getElementById('hidden_clientSecret').value = clientSecretValue;
+						
+						// Validate required fields
+						if (!document.getElementById('hidden_clientID').value) {
+							alert('Client ID is required');
+							e.preventDefault();
+							return false;
+						}
+						
+						console.log('Submitting cloud storage form with:', {
+							provider: providerType,
+							clientID: document.getElementById('hidden_clientID').value,
+							clientSecret: document.getElementById('hidden_clientSecret').value ? '[PRESENT]' : '[EMPTY]',
+							clientSecretLength: document.getElementById('hidden_clientSecret').value.length
+						});
+					}
+				});
+			});
 		});
 
 		function toggleProviderFields() {
@@ -437,20 +603,48 @@ templ providerFormScript() {
 			// S3-compatible storage
 			if (['s3', 'wasabi', 'minio', 'b2'].includes(provider)) {
 				document.getElementById('s3-fields').classList.remove('hidden');
+				
+				// Set region and endpoint requirements based on provider type
+				const regionRequired = document.getElementById('region-required');
+				const endpointRequired = document.getElementById('endpoint-required');
+				const regionInput = document.getElementById('region');
+				const endpointInput = document.getElementById('endpoint');
+				
+				// For B2: endpoint and region are optional
+				if (provider === 'b2') {
+					regionRequired.style.display = 'none';
+					endpointRequired.style.display = 'none';
+					regionInput.removeAttribute('required');
+					endpointInput.removeAttribute('required');
+				}
+				// For Wasabi: region is optional
+				else if (provider === 'wasabi') {
+					regionRequired.style.display = 'none';
+					endpointRequired.style.display = 'inline';
+					regionInput.removeAttribute('required');
+					endpointInput.setAttribute('required', 'required');
+				}
+				// For S3 and MinIO: both are required
+				else {
+					regionRequired.style.display = 'inline';
+					endpointRequired.style.display = 'inline';
+					regionInput.setAttribute('required', 'required');
+					endpointInput.setAttribute('required', 'required');
+				}
 			}
 			
 			// Google services
-			if (['gdrive', 'gphotos'].includes(provider)) {
+			if (['google_drive', 'google_photo'].includes(provider)) {
 				document.getElementById('cloud-fields').classList.remove('hidden');
 				
 				// Google Drive specific fields
-				if (provider === 'gdrive') {
+				if (provider === 'google_drive') {
 					document.getElementById('drive-id-field').classList.remove('hidden');
 					document.getElementById('team-drive-field').classList.remove('hidden');
 				}
 				
 				// Google Photos specific fields
-				if (provider === 'gphotos') {
+				if (provider === 'google_photo') {
 					document.getElementById('readonly-field').classList.remove('hidden');
 				}
 			}

internal/db/storage_provider.go

@@ -169,9 +169,7 @@ func (sp *StorageProvider) SetAuthenticated(value bool) {
 func (sp *StorageProvider) IsOAuthProvider() bool {
 	return sp.Type == ProviderTypeOneDrive ||
 		sp.Type == ProviderTypeGoogleDrive ||
-		sp.Type == ProviderTypeGooglePhoto ||
+		sp.Type == ProviderTypeGooglePhoto
-		sp.Type == ProviderTypeWebDAV ||
-		sp.Type == ProviderTypeNextcloud
 }
 
 // RequiresEncryption returns true if the provider has sensitive fields that need encryption

internal/db/storage_provider_validator.go

@@ -30,6 +30,8 @@ func (sp *StorageProvider) Validate() error {
 		return sp.validateS3()
 	case ProviderTypeFTP:
 		return sp.validateFTP()
+	case ProviderTypeWebDAV, ProviderTypeNextcloud:
+		return sp.validateWebDAV()
 	case ProviderTypeSMB:
 		return sp.validateSMB()
 	case ProviderTypeOneDrive:
@@ -67,6 +69,24 @@ func (sp *StorageProvider) validateSFTP() error {
 	return nil
 }
 
+// validateWebDAV validates WebDAV-specific fields
+func (sp *StorageProvider) validateWebDAV() error {
+	if strings.TrimSpace(sp.Host) == "" {
+		return errors.New("host is required for WebDAV provider")
+	}
+
+	if strings.TrimSpace(sp.Username) == "" {
+		return errors.New("username is required for WebDAV provider")
+	}
+
+	// Either password or encrypted password must be provided
+	if strings.TrimSpace(sp.Password) == "" && strings.TrimSpace(sp.EncryptedPassword) == "" {
+		return errors.New("password is required for WebDAV provider")
+	}
+
+	return nil
+}
+
 // validateS3 validates S3-specific fields
 func (sp *StorageProvider) validateS3() error {
 	// For S3, either AccessKey or Username is used
@@ -115,10 +135,6 @@ func (sp *StorageProvider) validateSMB() error {
 		return errors.New("host is required for SMB provider")
 	}
 
-	if strings.TrimSpace(sp.Share) == "" {
-		return errors.New("share is required for SMB provider")
-	}
-
 	if strings.TrimSpace(sp.Username) == "" {
 		return errors.New("username is required for SMB provider")
 	}

internal/db/transfer_config_store.go

@@ -191,6 +191,56 @@ func (db *DB) GenerateRcloneConfig(config *TransferConfig) error {
 		if output, err := cmd.CombinedOutput(); err != nil {
 			return fmt.Errorf("failed to create source config (sftp): %v\nOutput: %s", err, output)
 		}
+	case "smb":
+		args := []string{
+			"config", "create", sourceName, "smb",
+			"host", getStringValue(sourceCredentials, "host", config.SourceHost),
+			"user", getStringValue(sourceCredentials, "username", config.SourceUser),
+			"--non-interactive",
+			"--config", configPath,
+			"--log-level", "ERROR",
+		}
+
+		// Get domain if provided
+		domain := getStringValue(sourceCredentials, "domain", config.SourceDomain)
+		if domain != "" {
+			args = append(args, "domain", domain)
+		}
+
+		// Get port if specified (default is 445)
+		port := getIntValue(sourceCredentials, "port", config.SourcePort)
+		if port > 0 && port != 445 {
+			args = append(args, "port", fmt.Sprintf("%d", port))
+		}
+
+		// Get share if provided
+		share := getStringValue(sourceCredentials, "share", config.SourceShare)
+		if share != "" {
+			args = append(args, "share", share)
+		}
+
+		// Handle password
+		password := ""
+		if config.SourcePassword != "" {
+			password = config.SourcePassword
+		} else if encryptedPwd, ok := sourceCredentials["encrypted_password"].(string); ok && encryptedPwd != "" {
+			decryptedPwd, err := db.DecryptCredential(encryptedPwd)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt source password: %v", err)
+			}
+			password = decryptedPwd
+		} else if pwVal, ok := sourceCredentials["password"].(string); ok && pwVal != "" {
+			password = pwVal
+		}
+
+		if password != "" {
+			args = append(args, "pass", password)
+		}
+
+		cmd := exec.Command(rclonePath, args...)
+		if output, err := cmd.CombinedOutput(); err != nil {
+			return fmt.Errorf("failed to create source config (smb): %v\nOutput: %s", err, output)
+		}
 	case "s3":
 		args := []string{
 			"config", "create", sourceName, "s3",
@@ -269,12 +319,36 @@ func (db *DB) GenerateRcloneConfig(config *TransferConfig) error {
 	case "b2":
 		args := []string{
 			"config", "create", sourceName, "b2",
-			"account", config.SourceAccessKey, // B2 Account ID
-			"key", config.SourceSecretKey, // B2 Application Key
 			"--non-interactive",
 			"--config", configPath,
 			"--log-level", "ERROR",
 		}
+		// Handle account ID (access key)
+		accountID := getStringValue(sourceCredentials, "access_key", config.SourceAccessKey)
+		if accountID != "" {
+			args = append(args, "account", accountID)
+		}
+
+		// Handle secret key with proper decryption if from provider
+		secretKey := ""
+		if config.SourceSecretKey != "" {
+			// Direct input from form (transient)
+			secretKey = config.SourceSecretKey
+		} else if encryptedSecret, ok := sourceCredentials["encrypted_secret_key"].(string); ok && encryptedSecret != "" {
+			// Provider reference with encrypted secret
+			decryptedSecret, err := db.DecryptCredential(encryptedSecret)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt source secret key: %v", err)
+			}
+			secretKey = decryptedSecret
+		} else if secretVal, ok := sourceCredentials["secret_key"].(string); ok && secretVal != "" {
+			// Backward compatibility
+			secretKey = secretVal
+		}
+
+		if secretKey != "" {
+			args = append(args, "key", secretKey)
+		}
 		if config.SourceEndpoint != "" {
 			args = append(args, "endpoint", config.SourceEndpoint)
 		}
@@ -288,12 +362,32 @@ func (db *DB) GenerateRcloneConfig(config *TransferConfig) error {
 			"provider", "Minio",
 			"env_auth", "false",
 			"access_key_id", getStringValue(sourceCredentials, "access_key", config.SourceAccessKey),
-			"secret_access_key", getStringOrDefault(sourceCredentials, "secret_key", config.SourceSecretKey),
 			"endpoint", getStringValue(sourceCredentials, "endpoint", config.SourceEndpoint),
 			"--non-interactive",
 			"--config", configPath,
 			"--log-level", "ERROR",
 		}
+		// Handle secret key with proper decryption if from provider
+		secretKey := ""
+		if config.SourceSecretKey != "" {
+			// Direct input from form (transient)
+			secretKey = config.SourceSecretKey
+		} else if encryptedSecret, ok := sourceCredentials["encrypted_secret_key"].(string); ok && encryptedSecret != "" {
+			// Provider reference with encrypted secret
+			decryptedSecret, err := db.DecryptCredential(encryptedSecret)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt source secret key: %v", err)
+			}
+			secretKey = decryptedSecret
+		} else if secretVal, ok := sourceCredentials["secret_key"].(string); ok && secretVal != "" {
+			// Backward compatibility
+			secretKey = secretVal
+		}
+
+		if secretKey != "" {
+			args = append(args, "secret_access_key", secretKey)
+		}
+
 		// Add region if specified
 		if getStringValue(sourceCredentials, "region", config.SourceRegion) != "" {
 			args = append(args, "region", getStringValue(sourceCredentials, "region", config.SourceRegion))
@@ -413,19 +507,89 @@ func (db *DB) GenerateRcloneConfig(config *TransferConfig) error {
 		if output, err := cmd.CombinedOutput(); err != nil {
 			return fmt.Errorf("failed to create destination config (sftp): %v\nOutput: %s", err, output)
 		}
+	case "smb":
+		args := []string{
+			"config", "create", destName, "smb",
+			"host", getStringValue(destCredentials, "host", config.DestHost),
+			"user", getStringValue(destCredentials, "username", config.DestUser),
+			"--non-interactive",
+			"--config", configPath,
+			"--log-level", "ERROR",
+		}
+
+		// Get domain if provided
+		domain := getStringValue(destCredentials, "domain", config.DestDomain)
+		if domain != "" {
+			args = append(args, "domain", domain)
+		}
+
+		// Get port if specified (default is 445)
+		port := getIntValue(destCredentials, "port", config.DestPort)
+		if port > 0 && port != 445 {
+			args = append(args, "port", fmt.Sprintf("%d", port))
+		}
+
+		// Get share if provided
+		share := getStringValue(destCredentials, "share", config.DestShare)
+		if share != "" {
+			args = append(args, "share", share)
+		}
+
+		// Handle password
+		password := ""
+		if config.DestPassword != "" {
+			password = config.DestPassword
+		} else if encryptedPwd, ok := destCredentials["encrypted_password"].(string); ok && encryptedPwd != "" {
+			decryptedPwd, err := db.DecryptCredential(encryptedPwd)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt destination password: %v", err)
+			}
+			password = decryptedPwd
+		} else if pwVal, ok := destCredentials["password"].(string); ok && pwVal != "" {
+			password = pwVal
+		}
+
+		if password != "" {
+			args = append(args, "pass", password)
+		}
+
+		cmd := exec.Command(rclonePath, args...)
+		if output, err := cmd.CombinedOutput(); err != nil {
+			return fmt.Errorf("failed to create destination config (smb): %v\nOutput: %s", err, output)
+		}
 	case "s3":
 		args := []string{
 			"config", "create", destName, "s3",
 			"provider", "AWS", // Assuming AWS provider
 			"env_auth", "false",
 			"access_key_id", getStringValue(destCredentials, "access_key", config.DestAccessKey),
-			"secret_access_key", getStringOrDefault(destCredentials, "secret_key", config.DestSecretKey),
 			"region", getStringValue(destCredentials, "region", config.DestRegion),
 			"--non-interactive",
 			"--config", configPath,
 			"--log-level", "ERROR",
 		}
 
+		// Handle secret key with proper decryption if from provider
+		secretKey := ""
+		if config.DestSecretKey != "" {
+			// Direct input from form (transient)
+			secretKey = config.DestSecretKey
+		} else if encryptedSecret, ok := destCredentials["encrypted_secret_key"].(string); ok && encryptedSecret != "" {
+			// Provider reference with encrypted secret
+			decryptedSecret, err := db.DecryptCredential(encryptedSecret)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt destination secret key: %v", err)
+			}
+			secretKey = decryptedSecret
+		} else if secretVal, ok := destCredentials["secret_key"].(string); ok && secretVal != "" {
+			// Backward compatibility
+			secretKey = secretVal
+		}
+
+		if secretKey != "" {
+			args = append(args, "secret_access_key", secretKey)
+		}
+
 		endpoint := getStringValue(destCredentials, "endpoint", config.DestEndpoint)
 		if endpoint != "" {
 			args = append(args, "endpoint", endpoint)
@@ -441,13 +605,33 @@ func (db *DB) GenerateRcloneConfig(config *TransferConfig) error {
 			"provider", "Wasabi",
 			"env_auth", "false",
 			"access_key_id", getStringValue(destCredentials, "access_key", config.DestAccessKey),
-			"secret_access_key", getStringOrDefault(destCredentials, "secret_key", config.DestSecretKey),
 			"region", getStringValue(destCredentials, "region", config.DestRegion),
 			"--non-interactive",
 			"--config", configPath,
 			"--log-level", "ERROR",
 		}
 
+		// Handle secret key with proper decryption if from provider
+		secretKey := ""
+		if config.DestSecretKey != "" {
+			// Direct input from form (transient)
+			secretKey = config.DestSecretKey
+		} else if encryptedSecret, ok := destCredentials["encrypted_secret_key"].(string); ok && encryptedSecret != "" {
+			// Provider reference with encrypted secret
+			decryptedSecret, err := db.DecryptCredential(encryptedSecret)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt destination secret key: %v", err)
+			}
+			secretKey = decryptedSecret
+		} else if secretVal, ok := destCredentials["secret_key"].(string); ok && secretVal != "" {
+			// Backward compatibility
+			secretKey = secretVal
+		}
+
+		if secretKey != "" {
+			args = append(args, "secret_access_key", secretKey)
+		}
+
 		endpoint := getStringValue(destCredentials, "endpoint", config.DestEndpoint)
 		if endpoint == "" {
 			endpoint = "s3.wasabisys.com"
@@ -472,6 +656,27 @@ func (db *DB) GenerateRcloneConfig(config *TransferConfig) error {
 			args = append(args, "account", accountID)
 		}
 
+		// Handle secret key with proper decryption if from provider
+		secretKey := ""
+		if config.DestSecretKey != "" {
+			// Direct input from form (transient)
+			secretKey = config.DestSecretKey
+		} else if encryptedSecret, ok := destCredentials["encrypted_secret_key"].(string); ok && encryptedSecret != "" {
+			// Provider reference with encrypted secret
+			decryptedSecret, err := db.DecryptCredential(encryptedSecret)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt destination secret key: %v", err)
+			}
+			secretKey = decryptedSecret
+		} else if secretVal, ok := destCredentials["secret_key"].(string); ok && secretVal != "" {
+			// Backward compatibility
+			secretKey = secretVal
+		}
+
+		if secretKey != "" {
+			args = append(args, "key", secretKey)
+		}
+
 		// Handle application key (secret key) with proper decryption if from provider
 		appKey := ""
 		if config.DestSecretKey != "" {
@@ -508,12 +713,33 @@ func (db *DB) GenerateRcloneConfig(config *TransferConfig) error {
 			"provider", "Minio",
 			"env_auth", "false",
 			"access_key_id", getStringValue(destCredentials, "access_key", config.DestAccessKey),
-			"secret_access_key", getStringOrDefault(destCredentials, "secret_key", config.DestSecretKey),
 			"endpoint", getStringValue(destCredentials, "endpoint", config.DestEndpoint),
 			"--non-interactive",
 			"--config", configPath,
 			"--log-level", "ERROR",
 		}
+
+		// Handle secret key with proper decryption if from provider
+		secretKey := ""
+		if config.DestSecretKey != "" {
+			// Direct input from form (transient)
+			secretKey = config.DestSecretKey
+		} else if encryptedSecret, ok := destCredentials["encrypted_secret_key"].(string); ok && encryptedSecret != "" {
+			// Provider reference with encrypted secret
+			decryptedSecret, err := db.DecryptCredential(encryptedSecret)
+			if err != nil {
+				return fmt.Errorf("failed to decrypt destination secret key: %v", err)
+			}
+			secretKey = decryptedSecret
+		} else if secretVal, ok := destCredentials["secret_key"].(string); ok && secretVal != "" {
+			// Backward compatibility
+			secretKey = secretVal
+		}
+
+		if secretKey != "" {
+			args = append(args, "secret_access_key", secretKey)
+		}
+
 		// Add region if specified
 		if getStringValue(destCredentials, "region", config.DestRegion) != "" {
 			args = append(args, "region", getStringValue(destCredentials, "region", config.DestRegion))

internal/storage/connector_service.go

@@ -104,7 +104,15 @@ func createTempTransferConfig(provider *db.StorageProvider) *db.TransferConfig {
 			config.SetSourcePassiveMode(passive)
 		}
 
-	case db.ProviderTypeS3:
+	case db.ProviderTypeS3, db.ProviderTypeWasabi, db.ProviderTypeMinio:
+		config.SourceAccessKey = provider.AccessKey
+		config.SourceSecretKey = provider.SecretKey
+		config.SourceBucket = provider.Bucket
+		config.SourceRegion = provider.Region
+		config.SourceEndpoint = provider.Endpoint
+
+	case db.ProviderTypeB2:
+		// B2 uses AccessKey as account and SecretKey as application key
 		config.SourceAccessKey = provider.AccessKey
 		config.SourceSecretKey = provider.SecretKey
 		config.SourceBucket = provider.Bucket
@@ -162,13 +170,18 @@ func (s *ConnectorService) decryptProviderCredentials(provider *db.StorageProvid
 			provider.Password = password
 		}
 
-	case db.ProviderTypeS3:
+	case db.ProviderTypeS3, db.ProviderTypeWasabi, db.ProviderTypeMinio, db.ProviderTypeB2:
 		if provider.EncryptedSecretKey != "" {
 			secretKey, err := s.credentialEncryptor.Decrypt(provider.EncryptedSecretKey)
 			if err != nil {
 				return fmt.Errorf("failed to decrypt secret key: %w", err)
 			}
 			provider.SecretKey = secretKey
+			log.Printf("DEBUG: Decrypted secret key for %s provider (ID: %d, Type: %s) with length: %d",
+				provider.Name, provider.ID, provider.Type, len(provider.SecretKey))
+		} else {
+			log.Printf("WARNING: No encrypted secret key found for %s provider (ID: %d, Type: %s)",
+				provider.Name, provider.ID, provider.Type)
 		}
 
 	case db.ProviderTypeOneDrive, db.ProviderTypeGoogleDrive, db.ProviderTypeGooglePhoto:

internal/web/handlers/config_handlers.go

@@ -147,6 +147,112 @@ func (h *Handlers) HandleCreateConfig(c *gin.Context) {
 	userID := c.GetUint("userID")
 	config.CreatedBy = userID
 
+	// Explicitly set critical fields
+	config.Name = c.PostForm("name")
+	config.SourcePath = c.PostForm("source_path")
+	config.DestinationPath = c.PostForm("destination_path")
+	config.SourceType = c.PostForm("source_type")
+	config.DestinationType = c.PostForm("destination_type")
+
+	// Debug logs
+	log.Printf("DEBUG: Config data from form - Name: '%s', SourcePath: '%s', DestPath: '%s', SourceType: '%s', DestType: '%s'",
+		config.Name, config.SourcePath, config.DestinationPath, config.SourceType, config.DestinationType)
+
+	// Additional fields we need to explicitly set
+	if config.SourceType == "sftp" || config.SourceType == "ftp" || config.SourceType == "hetzner" {
+		config.SourceHost = c.PostForm("source_host")
+		portStr := c.PostForm("source_port")
+		if portStr != "" {
+			port, err := strconv.Atoi(portStr)
+			if err == nil {
+				config.SourcePort = port
+			}
+		}
+		config.SourceUser = c.PostForm("source_user")
+		config.SourcePassword = c.PostForm("source_password")
+		config.SourceKeyFile = c.PostForm("source_key_file")
+	}
+
+	if config.DestinationType == "sftp" || config.DestinationType == "ftp" || config.DestinationType == "hetzner" {
+		config.DestHost = c.PostForm("dest_host")
+		portStr := c.PostForm("dest_port")
+		if portStr != "" {
+			port, err := strconv.Atoi(portStr)
+			if err == nil {
+				config.DestPort = port
+			}
+		}
+		config.DestUser = c.PostForm("dest_user")
+		config.DestPassword = c.PostForm("dest_password")
+		config.DestKeyFile = c.PostForm("dest_key_file")
+	}
+
+	// S3 and similar providers
+	if config.SourceType == "s3" || config.SourceType == "wasabi" || config.SourceType == "minio" || config.SourceType == "b2" {
+		config.SourceBucket = c.PostForm("source_bucket")
+		config.SourceRegion = c.PostForm("source_region")
+		config.SourceAccessKey = c.PostForm("source_access_key")
+		config.SourceSecretKey = c.PostForm("source_secret_key")
+		config.SourceEndpoint = c.PostForm("source_endpoint")
+
+		// Debug logging for S3-compatible providers
+		log.Printf("DEBUG: S3-compatible source provider details - Type: %s, Bucket: %s, Region: %s, Endpoint: %s, Has Access Key: %t, Has Secret Key: %t",
+			config.SourceType,
+			config.SourceBucket,
+			config.SourceRegion,
+			config.SourceEndpoint,
+			config.SourceAccessKey != "",
+			config.SourceSecretKey != "")
+	}
+
+	if config.DestinationType == "s3" || config.DestinationType == "wasabi" || config.DestinationType == "minio" || config.DestinationType == "b2" {
+		config.DestBucket = c.PostForm("dest_bucket")
+		config.DestRegion = c.PostForm("dest_region")
+		config.DestAccessKey = c.PostForm("dest_access_key")
+		config.DestSecretKey = c.PostForm("dest_secret_key")
+		config.DestEndpoint = c.PostForm("dest_endpoint")
+
+		// Debug logging for S3-compatible providers
+		log.Printf("DEBUG: S3-compatible destination provider details - Type: %s, Bucket: %s, Region: %s, Endpoint: %s, Has Access Key: %t, Has Secret Key: %t",
+			config.DestinationType,
+			config.DestBucket,
+			config.DestRegion,
+			config.DestEndpoint,
+			config.DestAccessKey != "",
+			config.DestSecretKey != "")
+	}
+
+	// SMB specific fields
+	if config.SourceType == "smb" {
+		config.SourceShare = c.PostForm("source_share")
+		config.SourceDomain = c.PostForm("source_domain")
+	}
+
+	if config.DestinationType == "smb" {
+		config.DestShare = c.PostForm("dest_share")
+		config.DestDomain = c.PostForm("dest_domain")
+	}
+
+	// File pattern fields
+	config.FilePattern = c.PostForm("file_pattern")
+	config.OutputPattern = c.PostForm("output_pattern")
+
+	// Archive path
+	config.ArchivePath = c.PostForm("archive_path")
+
+	// Max concurrent transfers
+	maxConcurrentStr := c.PostForm("max_concurrent_transfers")
+	if maxConcurrentStr != "" {
+		maxConcurrent, err := strconv.Atoi(maxConcurrentStr)
+		if err == nil && maxConcurrent > 0 {
+			config.MaxConcurrentTransfers = maxConcurrent
+		} else {
+			config.MaxConcurrentTransfers = 4 // Default value
+		}
+	} else {
+		config.MaxConcurrentTransfers = 4 // Default value
+	}
+
 	// Process Boolean fields
 	skipProcessedVal := c.Request.FormValue("skip_processed_files")
 	skipProcessedValue := skipProcessedVal == "on" || skipProcessedVal == "true"

internal/web/handlers/storage_provider_handlers.go

@@ -441,7 +441,12 @@ func (h *Handlers) parseProviderFromForm(c *gin.Context) (db.StorageProvider, er
 			return provider, fmt.Errorf("host is required")
 		}
 
-	case db.ProviderTypeS3:
+	case db.ProviderTypeWebDAV, db.ProviderTypeNextcloud:
+		// WebDAV specific fields
+		provider.Username = c.PostForm("username")
+		provider.Password = c.PostForm("password")
+
+	case db.ProviderTypeS3, db.ProviderTypeWasabi, db.ProviderTypeMinio, db.ProviderTypeB2:
 		// S3 specific fields
 		provider.AccessKey = c.PostForm("accessKey")
 		provider.SecretKey = c.PostForm("secretKey")
@@ -458,8 +463,13 @@ func (h *Handlers) parseProviderFromForm(c *gin.Context) (db.StorageProvider, er
 			return provider, fmt.Errorf("bucket is required")
 		}
 
-		if provider.Region == "" {
+		// Validate region based on provider type
-			return provider, fmt.Errorf("region is required")
+		// B2 doesn't require region or endpoint
+		// Wasabi doesn't require region
+		if provider.Type == db.ProviderTypeS3 || provider.Type == db.ProviderTypeMinio {
+			if provider.Region == "" {
+				return provider, fmt.Errorf("region is required for %s", provider.Type)
+			}
 		}
 
 	case db.ProviderTypeOneDrive, db.ProviderTypeGoogleDrive, db.ProviderTypeGooglePhoto: