#!/bin/sh

# TorPostflight gets invoked after any install or upgrade.

ADDSYSUSER=$RECEIPT_PATH/addsysuser
if [ ! -x "$ADDSYSUSER" ]; then
  echo "Could not find addsysuser script."
  exit 1
fi

TORUSER=_tor
TORGROUP=daemon
TARGET=$2/Library/Tor
TORDIR=$TARGET/var/lib/tor
LOGDIR=$TARGET/var/log/tor

# Create user $TORUSER in group daemon.  If it's already there, great.
$ADDSYSUSER $TORUSER "Tor System user" $TORDIR

# Create the tor directory, if it doesn't exist.
if [ ! -d $TORDIR ]; then
  mkdir -p $TORDIR
fi
if [ ! -d $LOGDIR ]; then
  mkdir -p $LOGDIR
fi
# Check its permissions.
chown $TORUSER $TORDIR
chgrp daemon $TORDIR
chmod 700 $TORDIR
chown $TORUSER $LOGDIR
chgrp daemon $LOGDIR
chmod 700 $LOGDIR

# Create the configuration file only if there wan't one already.
if [ ! -f $TARGET/torrc ]; then
  cp $TARGET/torrc.sample $TARGET/torrc
fi

# Ensure symbolic links
cd /usr/bin
if [ -e /usr/bin/tor -a ! -L /usr/bin/tor ]; then
  mv tor tor_old
fi
if [ -e /usr/bin/tor-resolve -a ! -L /usr/bin/tor-resolve ]; then
  mv tor-resolve tor-resolve_old
fi
ln -sf $TARGET/tor .
ln -sf $TARGET/tor_resolve .

cd /usr/share/man/man1
MAN1=$TARGET/man/man1
ln -sf $MAN1/*.1 .

if [ ! -e /var/log/tor -o -L /var/log/tor ]; then
  cd /var/log
  rm -f tor
  ln -sf $LOGDIR tor
fi

if [ ! -d /Library/StartupItems/Tor ]; then
  mkdir -p /Library/StartupItems/Tor
fi
rm -f /Library/StartupItems/Tor/Tor.loc
echo "$TARGET" > /Library/StartupItems/Tor/Tor.loc

if [ -d /Library/StartupItems/Privoxy ]; then
  find /Library/StartupItems/Privoxy -print0 | xargs -0 chown root:wheel
fi