How 1Password Injects Code Into 64-Bit Safari on Snow Leopard

Nice detective work by Kevin Ballard:

One of the big changes in Snow Leopard is the move to 64-bit applications system-wide. This includes Safari. Unfortunately, this change breaks all of the Safari plugins out there, including mine. Thereโ€™s two reasons for this. The first is simply that these plugins are all 32-bit binaries, and a 64-bit app cannot load a 32-bit binary. The second, and significantly harder obstacle, is that the entire Input Manager mechanism has been eliminated in 64-bit apps.

The answer? They’re injecting code via a scripting addition — scripting additions being one of the few remaining plugin types that still load in 64-bit apps.

โ˜… Monday, 21 September 2009

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