#!/bin/bash

[ -x /etc/icpc/bocaserver.sh ] && . /etc/icpc/bocaserver.sh
if [ "$BOCASERVER" == "" ]; then
  echo "This computer has no configured BOCA server. Ask an admin to update /etc/icpc/bocaserver.sh (usually resetting everything is an easy way)"
  exit 1
fi

[ -x /etc/icpc/bocaservers.sh ] && . /etc/icpc/bocaservers.sh
if [ "$BOCASERVERS" == "" ]; then
	BOCASERVERS=$BOCASERVER
else
	BOCASERVERS="$BOCASERVER;$BOCASERVER"
fi

for i in uuencode wget tr perl sha256sum cut; do
  p=`which $i`
  if [ -x "$p" ]; then
    echo -n ""
  else
    echo "$i" not found
    exit 1
  fi
done
temp=/tmp/.temp.`date +%s%N`.txt

if [ "$1" == "" ]; then
	echo "Usage: $0 USER PASSWORD PROBLEM LANGUAGE FILE"
	echo ""
	echo "where USER is your username"
	echo "PASSWORD is your password"
	echo "FILE is your submission file"
	echo "PROBLEM and LANGUAGE are according to defined in BOCA"
	exit 1
fi

if [ -r "$5" ]; then
	nom=`echo -n "$5" | perl -MURI::Escape -lne 'print uri_escape($_)'`
	for BOCASERVER in `echo $BOCASERVERS | cut -d';'`; do
		md=`wget -t 2 -T 7 -S http://$BOCASERVER/boca/index.php -O /dev/null --save-cookies /tmp/.cookie.txt --keep-session-cookies 2>&1 | grep PHPSESS | tail -n1`
		echo "$md" | grep -q PHPSESS
		if [ "$?" == "0" ]; then
			md=`echo $md | cut -f2 -d'=' | cut -f1 -d';'`
			user=$1
			pass=$2
			res=`echo -n $pass | sha256sum - | cut -f1 -d' '`
			res=`echo -n "${res}${md}" | sha256sum - | cut -f1 -d' '`
			wget "http://$BOCASERVER/boca/index.php?name=${user}&password=${res}" --load-cookies /tmp/.cookie.txt --keep-session-cookies --save-cookies /tmp/.cookie.txt -O $temp 2>/dev/null >/dev/null
			grep -qi incorrect $temp
			if [ $? == 0 ]; then 
				echo "$BOCASERVER: User or password incorrect"
			else
				echo -n "name=${nom}&data=" > $temp
				uuencode -m zzzzzzzzzz < $1 | grep -v "begin-base64.*zzzzzzzzzz" | perl -MURI::Escape -lne 'print uri_escape($_)' >> $temp
				wget "http://$BOCASERVER/boca/team/getfile.php" --load-cookies /tmp/.cookie.txt --keep-session-cookies -O /dev/null --post-file=$temp >/dev/null 2>/dev/null
			fi
			rm -f $temp
			rm -f /tmp/.cookie.txt
		else
			echo "$BOCASERVER: time-out - this will automatically retry soon, you should not worry"
			echo "BOCASERVER=$BOCASERVER" > $temp
			echo "user=$user" >> $temp
			echo "pass=$pass" >> $temp
			echo "name=${nom}" >> $temp
			echo -n "data=" >> $temp
			uuencode -m zzzzzzzzzz < "$5" | grep -v "begin-base64.*zzzzzzzzzz" | perl -MURI::Escape -lne 'print uri_escape($_)' >> $temp
			echo "" >> $temp
			boca-submit-run-root $temp
		fi
	done
else
	echo "file $1 not found/readable"
fi