That's the vacuum check valve for the brake booster. I broke the one in my sedan in a similar manner. I simply went to the local wrecking yard and found one from a Volvo. I used a heat gun and some shrink tubing to insert the replacement onto the tubes--cheap and painless. Otherwise, it should be available from your dealer...or maybe some of the online vendors.
You might be able to tape off that vacuum leak, and tap the brown line into the other vacuum sources on the pump, as a temporary measure.
You might be able to tape off that vacuum leak, and tap the brown line into the other vacuum sources on the pump, as a temporary measure.