This isn't the same angle as the first Casablanca picture, but this location convinced me that the building was the bar as remembered.
Here you can see the front of the old building's facade as it appears now, with the alley beside it plainly in view.
Facing it head on, the old bar seems authentic. The same can't be said of the Shanghai Bar, once right beside it, but now demolished.
Finally, we can all see that the old Casablanca has been attached to a building behind it. If that black building had any significance in 1968, let me know. No memories for me here.