Brakes not working?

http://imgur.com/xUQituU (bad picture, sorry) This the firewall from the inside
http://imgur.com/ackkiU5 and this is where I found the leak. The thing circled in orange is where it's dripping from. Not sure if it's coming directly from that, or if it's dripping off the MC, onto that, then dripping on the ground. Does this help any??

EDIT: The pedal still has a good firm feeling. The rear reservoir is still full.

There is no doubt that the master cylinder is leaking from the back side.