private async void EncryptResFileToBase64String_Clicked(object sender, EventArgs e)
{
if (p_resfile1.SelectedIndex == -1)
{
await DisplayAlert("Error", "Please select resource file", "OK");
}
else
{
await Navigation.PushModalAsync(popup);
await Task.Delay(5000);
string encryptedStr = await XamEncDec.EncryptResourceFileAsBase64String(assembly, GetResourceValue(p_resfile1.SelectedIndex), "myPassword");
if (encryptedStr != "")
{
//edt_encrestostr.Text = encryptedStr;
Output outp = new Output();
outp.OutputStr = encryptedStr;
var OutputPage = new OutputText();
OutputPage.BindingContext = outp;
await Navigation.PushAsync(OutputPage);
}
else
{
await DisplayAlert("Error", "Resource file failed to encrypted", "OK");
}
await Navigation.PopModalAsync();
}
}
private async void EncryptFileToBase64String_Clicked(object sender, EventArgs e)
{
FileData file = await CrossFilePicker.Current.PickFile();
if (file != null)
{
await Navigation.PushModalAsync(popup);
await Task.Delay(5000);
StringBuilder stb = new StringBuilder(file.FilePath);
int postIndex = IndexOf(stb, file.FileName, 0, true);
string folderPath = stb.Remove(postIndex, file.FilePath.Length - postIndex).ToString();
//convert android content Uri into physical path, normally happens in Android emulator
folderPath = ConvertAndroidContentUriPath(folderPath);
string encryptedStr = await XamEncDec.EncryptFileAsBase64String(false, false, folderPath, "", file.FileName, "myPassword");
//edt_encfiletostr.Text = encryptedStr;
file.Dispose();
Output outp = new Output();
outp.OutputStr = encryptedStr;
var OutputPage = new OutputText();
OutputPage.BindingContext = outp;
await Navigation.PushAsync(OutputPage);
await Navigation.PopModalAsync();
}
}
public async void DecryptEncryptedString(string encryptedString)
{
//eg. decrypt encrypted Base64 string
//XamEncDec.DecryptEncryptedStringAsBase64String(<encrypted string>, <password used for encryption>);
var decryptedString = await XamEncDec.DecryptEncryptedStringAsString(encryptedString, "myPassword");
}
public async void EncryptResourceFileToBase64String(Assembly assembly, string resourceName, string password)
{
//eg. encrypt resource file and generate encrypted Base64 string
//XamEncDec.EncryptResourceFileAsBase64String(<Assembly object>,
//<Resource filename>, <password>);
var encryptedString = await XamEncDec.EncryptResourceFileAsBase64String(assembly, "TestFileEncryptDecryptXamarin.Files.MARBLES.JPG", "myPassword");
}
public async void EncryptFileToBase64String()
{
//eg. encrypt a file and generate encrypted base64 string
//XamEncDec.EncryptFileAsBase64String(<true/false to delete source file>,
//<True=local directory,False=use custom path>, <set string for custom path>,
//<new/existing folder name>, <file name to be encrypted>, <password for encryption>);
var encryptedString = await XamEncDec.EncryptFileAsBase64String(false, true, "", "folderName2", "MARBLES.JPG", "myPassword");
}
public async void EncryptResourceFileToNewFile()
{
//eg. encrypt resource file and generate a new encrypted file
//XamEncDec.EncryptResourceFileAsNewFile(<Assembly object>, <Resource filename>,
//<True=local directory,False=use custom path>,<set string for custom path>,
//<new/existing folder name>,<new filename>, <password>);
var isFileEncrypted = await XamEncDec.EncryptResourceFileAsNewFile(assembly, "TestFileEncryptDecryptXamarin.Files.MARBLES.JPG", true, "", "folderName1", "MARBLES.JPG", "myPassword");
}
public async void DecryptEncryptedFileToNewFile()
{
//eg. decrypt encrypted file to a new file
//XamEncDec.DecryptFileAsNewFile(<True=local directory,False=use custom path>,
//<set string for custom path>, <folder name for output>, <encrypted filename>,
//<password used for encryption>, <new filename for decrypted file>);
var isFileDecrypted = await XamEncDec.DecryptFileAsNewFile(true, "", "folderName1", "MARBLES_ENCRYPTED.JPG", "myPassword", "MARBLES_DECRYPTED.JPG");
}
public async void DecryptEncryptedStringToNewFile(string encryptedString)
{
//eg. decrypt encrypted string to a new file
//XamEncDec.DecryptEncryptedStringAsNewFile(<True=local directory,False=use custom path>,
//<set string for custom path>, <folder name for output>, <encrypted Base64 string>,
//<new filename for decrypted file>, <password used for encryption>);
var isFileDecrypted = await XamEncDec.DecryptEncryptedStringAsNewFile(false, androidSDPath, "test7", encryptedString, "test1.jpg", "myPassword");
}
public async void EncryptFileToNewFile()
{
//eg. encrypt a file and generate new encrypted file
//XamEncDec.EncryptFileAsNewFile(<true/false to delete source file>,
//<True=local directory,False=use custom path>, <set string for custom path>,
//<new/existing folder name>, <file name to be encrypted>, <password for encryption>,
//<new file name for encrypted file>);
bool isFileEncrypted = false;
if (Device.RuntimePlatform == Device.Android)
{
isFileEncrypted = await XamEncDec.EncryptFileAsNewFile(false, false,
CrossXamarinFileEncryptorDecryptor.Current.GetAndroidExternalStoragePath(),
"folderName1", "MARBLES.JPG", "myPassword", "MARBLES_ENCRYPTED.JPG");
}
}
private async void DecryptFileToNewFile_Clicked(object sender, EventArgs e)
{
if (ent_filetofile_filename.Text != "" && ent_filetofile_filename.Text != null)
{
var file = await CrossFilePicker.Current.PickFile();
try
{
if (file != null)
{
await Navigation.PushModalAsync(popup);
await Task.Delay(5000);
StringBuilder stb = new StringBuilder(file.FilePath);
int postIndex = IndexOf(stb, file.FileName, 0, true);
string folderPath = stb.Remove(postIndex, file.FilePath.Length - postIndex).ToString();
//convert android content Uri into physical path, normally happens in Android emulator
folderPath = ConvertAndroidContentUriPath(folderPath);
bool isFileEncrypted = await XamEncDec.DecryptFileAsNewFile(false, folderPath, "", file.FileName, "myPassword", ent_filetofile_filename.Text);
if (isFileEncrypted)
{
await DisplayAlert("Decrypt", "File successfully decrypted", "OK");
}
else
{
await DisplayAlert("Error", "Decryption failed", "OK");
}
file.Dispose();
}
}
catch (Exception ex)
{
await DisplayAlert("Error", "Decryption failed, file is not a valid encrypted file", "OK");
}
await Navigation.PopModalAsync();
}
else
{
await DisplayAlert("Error", "Please set the filename", "OK");
}
}
private async void EncryptResFileToNewFile_Clicked(object sender, EventArgs e)
{
if (p_resfile2.SelectedIndex == -1)
{
await DisplayAlert("Error", "Please select resource file", "OK");
}
else
{
if (p_restofile.SelectedIndex == -1)
{
await DisplayAlert("Error", "Please select path for generating encrpyted file", "OK");
}
else
{
if (ent_restofile_filename.Text == "")
{
await DisplayAlert("Error", "Please set the filename", "OK");
}
else
{
await Navigation.PushModalAsync(popup);
await Task.Delay(5000);
bool isFileEncrypted = await XamEncDec.EncryptResourceFileAsNewFile(assembly,
GetResourceValue(p_resfile2.SelectedIndex),
UseLocalDirectory(p_restofile.SelectedIndex),
SetPath(p_restofile.SelectedIndex),
ent_restofile_foldername.Text, ent_restofile_filename.Text, "myPassword");
await Navigation.PopModalAsync();
if (isFileEncrypted)
{
await DisplayAlert("Encrypt", "File successfully encrypted", "OK");
}
else
{
await DisplayAlert("Error", "Encryption failed", "OK");
}
}
}
}
}
public MainPage()
{
InitializeComponent();
NavigationPage.SetHasNavigationBar(this, false);
popup = new SharedPopup();
//popup.IsLoading = true;
//popup.ToggleTemp = true;
//For using application directory - no direct access to user
localPath = XamEncDec.GetLocalPath();
//For using roaming directory - not all platform support this
roamingPath = XamEncDec.GetRoamingPath();
//For using external storage path in Android
androidSDPath = "";
if (Device.RuntimePlatform == Device.Android)
{
androidSDPath = CrossXamarinFileEncryptorDecryptor.Current.GetAndroidExternalStoragePath();
}
//For using shared document path - commonly for iOS
documentPath = XamEncDec.GetDocumentsPath();
//For using library path in iOS
libraryPath = "";
if (Device.RuntimePlatform == Device.iOS)
{
libraryPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "..", "Library");
}
//Other paths that you can use, theres more if you google
localAppDataPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
commonAppDataPath = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
commonDocPath = Environment.GetFolderPath(Environment.SpecialFolder.CommonDocuments);
//getting the assembly to access resource files
assembly = IntrospectionExtensions.GetTypeInfo(typeof(TestFileEncryptDecryptXamarin.App)).Assembly;
}
