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whyallyn / unarchive-plist

Convert a NSKeyedArchiver keyed archived plist to a serialization with key-value pairs.

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cannot decode object of class (InstantMessage)

russellaugust opened this issue · comments

commented

Running into a problem trying to decode a iChat archive. Any help would be much appreciated!

I'm running:

python unarchive_plist.py \
    -r "myfriend on 2008-04-18 at 00.07.ichat" \
    -f xml1 \
    -w test.xml

and my output error is:
[ERROR] NSInvalidUnarchiveOperationException - *** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (InstantMessage) for key (NS.objects); the class may be defined in source code or a library that is not linked

commented

Hi @russellaugust, It's been awhile since I looked at this code!

It appears there isn't a class definition for InstantMessage, so NSKeyedUnarchiver cannot unarchive it.
If you found the class, or reversed and defined it yourself, you could add the following before the unarchiveObjectWithFile_ call and NSKeyedUnarchiver should work: NSKeyedUnarchiver.setClass_forClassName_(instant_message_object, "InstantMessage")

I don't expect defining the InstantMessage class to be easy. I would probably just live with the XML conversion that plutil provides: plutil -convert xml1 myfriend.ichat -o myfriend.xml

Hope this helps!

commented

thanks @whyallyn I'll stick to the plutil