Ruby

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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Ruby

require 'chilkat'

success = false

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

mime = Chilkat::CkMime.new()
success = mime.LoadMimeFile("qa_data/message.eml")
if (success == false)
    print mime.lastErrorText() + "\n";
    exit
end

if (mime.ContainsEncryptedParts())
    print "The message tree contains an encrypted part." + "\n";
else
    print "The message tree contains no encrypted part." + "\n";
end