Swift

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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Swift


func chilkatTest() {
    var success: Bool = false

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

    let mime = CkoMime()!
    success = mime.loadFile(path: "qa_data/message.eml")
    if success == false {
        print("\(mime.lastErrorText!)")
        return
    }

    if mime.containsEncryptedParts() {
        print("The message tree contains an encrypted part.")
    }
    else {
        print("The message tree contains no encrypted part.")
    }


}