Visual FoxPro

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.

Chilkat Visual FoxPro Downloads

Download Chilkat for Visual FoxPro

Visual FoxPro

LOCAL lnSuccess
LOCAL loMime

lnSuccess = 0

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

loMime = CreateObject('Chilkat.Mime')
lnSuccess = loMime.LoadMimeFile("qa_data/message.eml")
IF (lnSuccess = 0) THEN
    ? loMime.LastErrorText
    RELEASE loMime
    CANCEL
ENDIF

IF (loMime.ContainsEncryptedParts()) THEN
    ? "The message tree contains an encrypted part."
ELSE
    ? "The message tree contains no encrypted part."
ENDIF

RELEASE loMime