VBScript

Check if a MIME Tree Contains Encrypted Parts

Demonstrates the Chilkat Mime.ContainsEncryptedParts method, which returns whether the currently visible MIME tree contains a CMS/PKCS #7 encrypted entity. It takes no arguments.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own file.

Background: The tree-wide counterpart to IsEncrypted: it finds an encrypted entity nested anywhere in the message, not just at the top. This lets you detect partially-encrypted messages and decide which parts require decryption before processing.

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VBScript

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

'  Demonstrates the Mime.ContainsEncryptedParts method, which returns whether the MIME tree contains a CMS/PKCS #7 encrypted entity.  It takes no arguments.

set mime = CreateObject("Chilkat.Mime")
success = mime.LoadMimeFile("qa_data/message.eml")
If (success = 0) Then
    outFile.WriteLine(mime.LastErrorText)
    WScript.Quit
End If

If (mime.ContainsEncryptedParts()) Then
    outFile.WriteLine("The message tree contains an encrypted part.")
Else
    outFile.WriteLine("The message tree contains no encrypted part.")
End If


outFile.Close