A few weeks ago, I asked for ideas about an email robot script to automagically authenticate psu wifi, so that I enter the robot's address into the PSU guest wifi request page and let the robot access the URL.
Almost there! I would like to figure out how to redirect the email to the script below. Pretend the following is (for example) a line in /etc/postfix/aliases.db that actually executes: psu: "| /bin/grep https | /bin/sed 'sX.*\(https://sentinel.net.pdx.edu/activate/email/[0-9a-f]*\).*X/usr/bin/curl -s \1X' | /bin/sh > /dev/null" Where should I actually put this one line script to make it execute when postfix gets an email to p...@keithl.com ? What more should I do to secure it against malformed emails and minimize the script's privileges to the bare minimum? Keith P.S.: how it works: it uses grep to find the line in the email (from PSU's authentication bot) with the https link, then feeds that line into sed to extract the weblink, which ends with a random hexidecimal number. I substitute the match "\1" into the string /usr/bin/curl -s [matched characters here] then pipe the string as a command into /bin/sh which executes curl. Results from curl go into /dev/null . The -s means curl runs silently, without displaying download progress. P.P.S.: Note to evildoers: I will use a different email address than "p...@keithl.com". It is true I am lazy, but I don't want to create extra hassles for PSU if some twit starts hammering my mail server. -- Keith Lofstrom kei...@keithl.com ----- Don't waste your vote in 2016! Give it to the Republicans and Democrats, and they will gladly waste it for you! _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
