Trail of gas and cabin smells of gas

[Persian]

Greetings fine people of Xoutpost,

I come to you at the grand odometer reading of 248,100 kM

This afternoon I've come to find the car reeking of gasoline smell. Upon later inspection, and after moving the car, there was a trail of gas coming from the car. Left side.

This trail of gas comes from here:

http://i.imgur.com/oQ3Ktyn.jpg
http://i.imgur.com/MbmqWjR.jpg

Is there a mechanic's bulletin that I can use to diagnose this issue and fix it?

The car seems to leak more when actually turned on. So I am uneasy about taking it to my mechanic with this issue. I will get an estimate on a tow.. But it seems rather wasteful.

I appreciate any & all advice.

Thank you.