/// <summary>
/// Method for getting encrypted or decrypted text from a file.
/// </summary>
/// <param name="file">A DOCX or TXT file.</param>
/// <param name="language">The language in which the key was entered.</param>
/// <param name="key">Key for encryption or decryption.</param>
/// <param name="crypt">Mode of text conversion(encryption or decryption).</param>
/// <returns>Text as a result of encryption or decryption.</returns>
/// <exception cref="Exception">Error reading the file.</exception>
public static string GetResultFile(Document file, Cipher.LanguageMode language, string key,
Cipher.CryptMode crypt)
{
if (file.GetContent() is byte[] bytesOfDocx)
{
using var stream = new MemoryStream();
var result = new StringBuilder();
stream.Write(bytesOfDocx, 0, bytesOfDocx.Length);
using var wordDocument = WordprocessingDocument.Open(stream, true);
var paragraphs = wordDocument.MainDocumentPart.Document.Body.Elements <Paragraph>();
foreach (var paragraph in paragraphs)
{
foreach (var run in paragraph.Elements <Run>())
{
foreach (var text in run.Elements <Text>())
{
result.AppendLine(new Cipher(text.Text, language, key, crypt).GetResultText());
}
}
}
return(result.ToString());
}
if (!(file.GetContent() is string content))
{
throw new Exception("The file content was not detected.");
}
return(new Cipher(content, language, key, crypt).GetResultText());
}
/// <summary>
/// Displays a notification with information about successful encryption or decryption.
/// </summary>
/// <param name="notification"></param>
/// <param name="crypt">Mode of text conversion(encryption or decryption).</param>
/// <exception cref="ArgumentOutOfRangeException">Unknown conversion mode.</exception>
public static void ShowSuccessCrypt(this IMatToaster notification, Cipher.CryptMode crypt)
{
switch (crypt)
{
case Cipher.CryptMode.Decrypt:
notification.Add("The text has been successfully decrypted.", MatToastType.Success, "Successfully");
break;
case Cipher.CryptMode.Encrypt:
notification.Add("The text has been successfully encrypted.", MatToastType.Success, "Successfully");
break;
default:
throw new ArgumentOutOfRangeException(nameof(crypt), crypt, null);
}
}
/// <summary>
/// Asynchronous method that returns the result of encrypting or decrypting text.
/// </summary>
/// <param name="text">Text that will be encrypted or decrypted.</param>
/// <param name="language">The language in which the key was entered.</param>
/// <param name="key">Key for encryption or decryption.</param>
/// <param name="crypt">Mode of text conversion(encryption or decryption).</param>
/// <returns>Text as a result of encryption or decryption.</returns>
public static Task <string> GetResultTextAsync(string text, Cipher.LanguageMode language, string key,
Cipher.CryptMode crypt)
{
return(Task.FromResult(new Cipher(text, language, key, crypt).GetResultText()));
}
