Feature: Prompt for credentials when connecting smb (files-community#11144)

Author: radu-cernatescu

src/Files.App/Filesystem/NetworkDrivesAPI.cs

@@ -1,11 +1,16 @@
-using Files.App.Shell;
+using Files.App.Extensions;
+using Files.App.Helpers;
+using Files.App.Shell;
 using System;
 using System.ComponentModel;
 using System.Runtime.InteropServices;
+using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 using Vanara.Extensions;
 using Vanara.InteropServices;
+using static Vanara.PInvoke.AdvApi32;
+using Vanara.PInvoke;
 using static Vanara.PInvoke.Mpr;
 
 namespace Files.App.Filesystem
@@ -117,6 +122,52 @@ public static Task<bool> OpenMapNetworkDriveDialog(long hwnd)
 			});
 		}
 
+		public static async Task<bool> AuthenticateNetworkShare(string path)
+		{
+			NETRESOURCE nr = new NETRESOURCE
+			{
+				dwType = NETRESOURCEType.RESOURCETYPE_DISK,
+				lpRemoteName = path
+			};
+
+			Win32Error connectionError = WNetAddConnection3(HWND.NULL, nr, null, null, 0);  // if creds are saved, this will return NO_ERROR
+
+			if (connectionError == Win32Error.ERROR_LOGON_FAILURE)
+			{
+				var dialog = DynamicDialogFactory.GetFor_CredentialEntryDialog(path);
+				await dialog.ShowAsync();
+				var credentialsReturned = dialog.ViewModel.AdditionalData as string[];
+
+				if (credentialsReturned is string[] && credentialsReturned[1] != null)
+				{
+					connectionError = WNetAddConnection3(HWND.NULL, nr, credentialsReturned[1], credentialsReturned[0], 0);
+					if (credentialsReturned[2] == "y" && connectionError == Win32Error.NO_ERROR)
+					{
+						CREDENTIAL creds = new CREDENTIAL();
+						creds.TargetName = new StrPtrAuto(path.Substring(2));
+						creds.UserName = new StrPtrAuto(credentialsReturned[0]);
+						creds.Type = CRED_TYPE.CRED_TYPE_DOMAIN_PASSWORD;
+						creds.AttributeCount = 0;
+						creds.Persist = CRED_PERSIST.CRED_PERSIST_ENTERPRISE;
+						byte[] bpassword = Encoding.Unicode.GetBytes(credentialsReturned[1]);
+						creds.CredentialBlobSize = (UInt32)bpassword.Length;
+						creds.CredentialBlob = Marshal.StringToCoTaskMemUni(credentialsReturned[1]);
+						CredWrite(creds, 0);
+					}
+				}
+				else
+					return false;
+			}
+
+			if (connectionError == Win32Error.NO_ERROR)
+				return true;
+			else
+			{
+				await DialogDisplayHelper.ShowDialogAsync("NetworkFolderErrorDialogTitle".GetLocalizedResource(), connectionError.ToString().Split(":")[1].Trim());
+				return false;
+			}
+		}
+
 		public static bool DisconnectNetworkDrive(string drive)
 		{
 			return WNetCancelConnection2(drive.TrimEnd('\\'), CONNECT.CONNECT_UPDATE_PROFILE, true).Succeeded;

src/Files.App/Helpers/DynamicDialogFactory.cs

@@ -60,7 +60,6 @@ public static DynamicDialog GetFor_RenameDialog()
 			DynamicDialog? dialog = null;
 			TextBox inputText = new()
 			{
-				Height = 35d,
 				PlaceholderText = "RenameDialogInputText/PlaceholderText".GetLocalizedResource()
 			};
 
@@ -134,5 +133,83 @@ public static DynamicDialog GetFor_FileInUseDialog(List<Shared.Win32Process> loc
 			});
 			return dialog;
 		}
+
+		public static DynamicDialog GetFor_CredentialEntryDialog(string path)
+		{
+			string[] userAndPass = new string[3];
+			DynamicDialog? dialog = null;
+
+			TextBox inputUsername = new()
+			{
+				PlaceholderText = "CredentialDialogUserName/PlaceholderText".GetLocalizedResource()
+			};
+
+			PasswordBox inputPassword = new()
+			{
+				PlaceholderText = "CredentialDialogPassword/PlaceholderText".GetLocalizedResource()
+			};
+
+			CheckBox saveCreds = new()
+			{
+				Content = "NetworkAuthenticationSaveCheckbox".GetLocalizedResource()
+			};
+
+			inputUsername.TextChanged += (textBox, args) =>
+			{
+				userAndPass[0] = inputUsername.Text;
+				dialog.ViewModel.AdditionalData = userAndPass;
+			};
+
+			inputPassword.PasswordChanged += (textBox, args) =>
+			{
+				userAndPass[1] = inputPassword.Password;
+				dialog.ViewModel.AdditionalData = userAndPass;
+			};
+
+			saveCreds.Checked += (textBox, args) =>
+			{
+				userAndPass[2] = "y";
+				dialog.ViewModel.AdditionalData = userAndPass;
+			};
+
+			saveCreds.Unchecked += (textBox, args) =>
+			{
+				userAndPass[2] = "n";
+				dialog.ViewModel.AdditionalData = userAndPass;
+			};
+
+			dialog = new DynamicDialog(new DynamicDialogViewModel()
+			{
+				TitleText = "NetworkAuthenticationDialogTitle".GetLocalizedResource(),
+				PrimaryButtonText = "AskCredentialDialog/PrimaryButtonText".GetLocalizedResource(),
+				CloseButtonText = "Cancel".GetLocalizedResource(),
+				SubtitleText = string.Format("NetworkAuthenticationDialogMessage".GetLocalizedResource(), path.Substring(2)),
+				DisplayControl = new Grid()
+				{
+					MinWidth = 250d,
+					Children =
+					{
+						new StackPanel()
+						{
+							Spacing = 10d,
+							Children =
+							{
+								inputUsername,
+								inputPassword,
+								saveCreds
+							}
+						}
+					}
+				},
+				CloseButtonAction = (vm, e) =>
+				{
+					dialog.ViewModel.AdditionalData = null;
+					vm.HideDialog();
+				}
+
+			});
+
+			return dialog;
+		}
 	}
 }

src/Files.App/Helpers/NavigationHelpers.cs

@@ -254,6 +254,7 @@ private static async Task<FilesystemResult> OpenDirectory(string path, IShellPag
 			var opened = (FilesystemResult)false;
 			bool isHiddenItem = NativeFileOperationsHelper.HasFileAttribute(path, System.IO.FileAttributes.Hidden);
 			bool isShortcut = FileExtensionHelpers.IsShortcutOrUrlFile(path);
+			bool isNetwork = path.StartsWith(@"\\", StringComparison.Ordinal);
 
 			if (isShortcut)
 			{
@@ -273,6 +274,27 @@ private static async Task<FilesystemResult> OpenDirectory(string path, IShellPag
 				await OpenPath(forceOpenInNewTab, userSettingsService.FoldersSettingsService.OpenFoldersInNewTab, path, associatedInstance);
 				opened = (FilesystemResult)true;
 			}
+			else if (isNetwork)
+			{
+				var auth = await NetworkDrivesAPI.AuthenticateNetworkShare(path);
+				if (auth)
+				{
+					if (forceOpenInNewTab || userSettingsService.FoldersSettingsService.OpenFoldersInNewTab)
+					{
+						await OpenPathInNewTab(path);
+					}
+					else
+					{
+						associatedInstance.ToolbarViewModel.PathControlDisplayText = path;
+						associatedInstance.NavigateWithArguments(associatedInstance.InstanceViewModel.FolderSettings.GetLayoutType(path), new NavigationArguments()
+						{
+							NavPathParam = path,
+							AssociatedTabInstance = associatedInstance
+						});
+					}
+					opened = (FilesystemResult)true;
+				}
+			}
 			else
 			{
 				opened = await associatedInstance.FilesystemViewModel.GetFolderWithPathFromPathAsync(path)

src/Files.App/Strings/en-US/Resources.resw

@@ -2900,5 +2900,17 @@
   </data>
   <data name="DisplayEditTagsMenu" xml:space="preserve">
     <value>Display the edit tags flyout</value>
+  </data>
+	<data name="NetworkAuthenticationDialogMessage" xml:space="preserve">
+    <value>Enter your credentials to connect to: {0}</value>
+  </data>
+	<data name="NetworkAuthenticationDialogTitle" xml:space="preserve">
+    <value>Enter Network Credentials</value>
+  </data>
+	<data name="NetworkAuthenticationSaveCheckbox" xml:space="preserve">
+    <value>Remember my credentials</value>
+  </data>
+	<data name="NetworkFolderErrorDialogTitle" xml:space="preserve">
+    <value>Network folder error</value>
   </data>
 </root>

src/Files.App/ViewModels/ToolbarViewModel.cs

@@ -950,6 +950,13 @@ public async Task CheckPathInput(string currentInput, string currentSelectedPath
 			if (currentInput.StartsWith('\\') && !currentInput.StartsWith("\\\\", StringComparison.Ordinal))
 				currentInput = currentInput.Insert(0, "\\");
 
+			if (currentInput.StartsWith('\\'))
+			{
+				var auth = await NetworkDrivesAPI.AuthenticateNetworkShare(currentInput);
+				if (!auth)
+					return;
+			}
+
 			if (currentSelectedPath == currentInput || string.IsNullOrWhiteSpace(currentInput))
 				return;