AppleScript Forward Messages Attachments

Question

Hello,
I'm trying to make it so that any iMessages including picture/video attachments I receive get forwarded to my e-mail address. I created a script that runs on the "message received" event from the iMessages preferences. It worked fine for just text, but cant seem to get the video/picture out of the message.
using terms from application "Messages"
          on message received theMessage from theBuddy for theChat
                         get attachment theFile
                         tell application "Mail"
                                        set theNewMessage to make new outgoing message with properties {subject:"sometext", content:theMessage, visible:true}
                                        tell theNewMessage
                make new to recipient at end of to recipients with properties {address:"[email protected]"}
                make new attachment with properties {file name:theFile}
                                                       send
                                        end tell
                         end tell
          end message received
end using terms from
As I expected I get an error that "theFile" is undefined or whatever, meaning that get attachment had no effect. For now lets assume every message received will always contain a picture and some text.
Any help would be greatly appreciated!

Answer 1

I did some more reading online and looked for information on iChat as it is apparently very similar to
Messages. I found this on Apple Developer:
https://developer.apple.com/library/mac/#samplecode/iChatAppleScriptSamples/List ings/Add_Incoming_Images_to_iPhoto_Add_incoming_image_to_iPhoto_applescript.html
So I modified the code to this but still no luck:
on received file transfer invitation theFileTransfer
         accept transfer of theFileTransfer
                    tell application "Mail"
                                   set theNewMessage to make new outgoing message with properties
                         {subject:"photo", content:"themessage", visible:true}
                   tell theNewMessage
                           make new to recipient at end of to recipients with properties
                                   {address:"[email protected]"}
                           send
                   end tell
                    end tell
end received file transfer invitation
Also, made sure to have the AppleScript run on Incoming File Transfer in the Messages preferences.