/// <summary>
/// Verify the password on a zip file.
/// </summary>
///
/// <remarks>
/// <para>
/// Keep in mind that passwords in zipfiles are applied to
/// zip entries, not to the entire zip file. So testing a
/// zipfile for a particular password doesn't work in the
/// general case. On the other hand, it's often the case
/// that a single password will be used on all entries in a
/// zip file. This method works for that case.
/// </para>
/// <para>
/// There is no way to check a password without doing the
/// decryption. So this code decrypts and extracts the given
/// zipfile into <see cref="System.IO.Stream.Null"/>
/// </para>
/// </remarks>
///
/// <param name="zipFileName">The filename to of the zip file to fix.</param>
///
/// <param name="password">The password to check.</param>
///
/// <returns>a bool indicating whether the password matches.</returns>
internal static bool CheckZipPassword(string zipFileName, string password)
{
string fullPath = GetFullPath(zipFileName);
var file = FileSystem.Current.GetFileFromPathAsync(fullPath).ExecuteSync();
if (file == null)
{
throw new FileNotFoundException(string.Format("That file ({0}) does not exist!", zipFileName));
}
using (var stream = file.OpenAsync(FileAccess.Read).ExecuteSync())
{
return(ZipFile.CheckZipPassword(stream, password));
}
}
/// <summary>
/// A COM-friendly wrapper for the static method <see cref="ZipFile.CheckZipPassword(string,string)"/>.
/// </summary>
///
/// <param name="filename">The filename to of the zip file to check.</param>
///
/// <param name="password">The password to check.</param>
///
/// <returns>true if the named zip file checks OK. Otherwise, false. </returns>
public bool CheckZipPassword(string filename, string password)
{
return(ZipFile.CheckZipPassword(filename, password));
}
/// <summary>
/// Verify the password on a zip file.
/// </summary>
///
/// <remarks>
/// <para>
/// Keep in mind that passwords in zipfiles are applied to
/// zip entries, not to the entire zip file. So testing a
/// zipfile for a particular password doesn't work in the
/// general case. On the other hand, it's often the case
/// that a single password will be used on all entries in a
/// zip file. This method works for that case.
/// </para>
/// <para>
/// There is no way to check a password without doing the
/// decryption. So this code decrypts and extracts the given
/// zipfile into <see cref="System.IO.Stream.Null"/>
/// </para>
/// </remarks>
///
/// <param name="zipFileName">The filename to of the zip file to fix.</param>
///
/// <param name="password">The password to check.</param>
///
/// <returns>a bool indicating whether the password matches.</returns>
public static bool CheckZipPassword(Stream zipFileStream, string password)
{
return(ZipFile.CheckZipPassword(zipFileStream, password));
}
