#!/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

# Check defaults for TARGET
if [ "$TARGET" == "//Library/Tor" ]; then
	TARGET=/Library/Tor
fi

## Determine OSX Version
# map version to name
if [ -x /usr/bin/sw_vers ]; then
# This is poor, yet functional.  We don't care about the 3rd number in
# the OS version
  OSVER=`/usr/bin/sw_vers | grep ProductVersion | cut -f2 | cut -d"." -f1,2`
  case "$OSVER" in
 	"10.5") OS="leopard";;
	"10.4") OS="tiger";;
	"10.3") OS="panther";;
	"10.2") OS="jaguar";;
	"10.1") OS="puma";;
	"10.0") OS="cheetah";;
	*) OS="unknown";;
  esac
else
  OS="unknown"
fi

# 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 wasn'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/Privoxy ]; then
  find /Library/StartupItems/Privoxy -print0 | xargs -0 chown root:wheel
fi

# Copy Documentation
if [ -d $PACKAGE_PATH/Contents/Resources/documents ];then
   cp -r $PACKAGE_PATH/Contents/Resources/documents $TARGET/documents
fi

# Copy Uninstaller
if [ -f $PACKAGE_PATH/Contents/Resources/Tor_Uninstaller.applescript ]; then 
   cp $PACKAGE_PATH/Contents/Resources/Tor_Uninstaller.applescript $TARGET/Tor_Uninstaller.applescript
   chmod 755 $TARGET/Tor_Uninstaller.applescript
fi

if [ -f $PACKAGE_PATH/Contents/Resources/Tor_Uninstaller.app.tar.gz ]; then 
   cp $PACKAGE_PATH/Contents/Resources/Tor_Uninstaller.app.tar.gz $TARGET/Tor_Uninstaller.app.tar.gz
   cd $TARGET && tar zxf Tor_Uninstaller.app.tar.gz 
   chmod -R 755 $TARGET/Tor_Uninstaller.app
   chown -R _tor:_tor Tor_Uninstaller.app
   rm $TARGET/Tor_Uninstaller.app.tar.gz
fi

if [ -f $PACKAGE_PATH/Contents/Resources/uninstall_tor_bundle.sh ]; then
   cp $PACKAGE_PATH/Contents/Resources/uninstall_tor_bundle.sh $TARGET/uninstall_tor_bundle.sh
   chmod 755 $TARGET/uninstall_tor_bundle.sh
fi

if [ -f $PACKAGE_PATH/Contents/Resources/package_list.txt ]; then
   cp $PACKAGE_PATH/Contents/Resources/package_list.txt $TARGET/package_list.txt
fi

# If the pre-install script did it's thing, it should have saved the
# config and server keys; put these back and clean up
if [ -f /tmp/TorSavedMe.tar.gz ]; then
	tar zxf /tmp/TorSavedMe.tar.gz -C /
	rm /tmp/TorSavedMe.tar.gz
fi

# Determine how to start by OS Version
if [ $OS = "tiger" || $OS = "leopard" ]; then
  if [ -f $PACKAGE_PATH/Contents/Resources/net.freehaven.tor.plist ]; then
     rm -rf /Library/StartupItems/Tor
     cp $PACKAGE_PATH/Contents/Resources/net.freehaven.tor.plist /System/Library/LaunchDaemons/net.freehaven.tor.plist
     chmod 644 /System/Library/LaunchDaemons/net.freehaven.tor.plist
     if [ -f $TARGET/torrc ]; then
       IFS=,
       CONFIGVARS="#--START,RunAsDaemon 0,Log notice file $TARGET/var/log/tor/tor.log,DataDirectory $TARGET/var/lib/tor,Group daemon,User _tor,PidFile /var/run/Tor.pid,#--END"
       for var in ${CONFIGVARS}
         do
	 RC=`grep ^$var $TARGET/torrc`
	 if [ -z $RC ]; then
	   echo "$var" >> $TARGET/torrc
	 fi
       done
     fi
  fi
     /bin/launchctl load /System/Library/LaunchDaemons/net.freehaven.tor.plist
     /bin/launchctl start net.freehaven.tor
else
  if [ -d /Library/StartupItems/Tor ]; then
    rm -f /Library/StartupItems/Tor/Tor.loc
    echo "$TARGET" > /Library/StartupItems/Tor/Tor.loc
  fi
fi