mkdbjail

#!/bin/bash

# Creates a jail environment for dropbox,
# sets up DropBox, and gets it ready to go!

# daid 2012.1.17
# following along, scripting, and correcting:
# http://en.gentoo-wiki.com/wiki/Jail_Dropbox

# variables used, change as necessary
CHROOT="/var/chroot/dropbox"
DBURL="http://www.getdropbox.com/download?plat=lnx.x86"
# This will get 2.6, 2.7 and so on
PYTHONV=`eselect python list | grep "python2." | sed 's/.*python//' | sed 's/\ .*//'`

# Dep check
type -P wget &>/dev/null || { printf "mkdbjail requires wget but it's not in your PATH or not installed.\n\tPlease run: emerge wget\nAborting.\n" >&2; exit 1; }
type -P jail &>/dev/null || { printf "mkdbjail requires jail but it's not in your PATH or not installed.\n\tPlease run: emerge jail\nAborting.\n" >&2; exit 1; }

# need to make the /var/chroot (or similar directory) but enough hacking for today

mkjailenv $CHROOT

cd $CHROOT

addjailuser $CHROOT /home/dropbox /bin/bash dropbox

addjailsw $CHROOT
addjailsw $CHROOT -P bash "--version"
addjailsw $CHROOT -P readlink "--help"
addjailsw $CHROOT -P dirname "--help"

# The basic libraries required
echo "Copying basic libraries..."
cp -vp /lib/ld-linux.so.2 $CHROOT/lib/
cp -vp /lib/libgcc_s.so.1 $CHROOT/lib/
cp -vp /usr/lib/libgtk-x11-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libgdk-x11-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libatk-1.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libgdk_pixbuf-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libfontconfig.so.1 $CHROOT/usr/lib/
cp -vp /usr/lib/libXext.so.6 $CHROOT/usr/lib/
cp -vp /usr/lib/libXrender.so.1 $CHROOT/usr/lib/
cp -vp /usr/lib/libXinerama.so.1 $CHROOT/usr/lib/
cp -vp /usr/lib/libXi.so.6 $CHROOT/usr/lib/
cp -vp /usr/lib/libXrandr.so.2 $CHROOT/usr/lib/
cp -vp /usr/lib/libXcursor.so.1 $CHROOT/usr/lib/
cp -vp /usr/lib/libXcomposite.so.1 $CHROOT/usr/lib/
cp -vp /usr/lib/libXdamage.so.1 $CHROOT/usr/lib/
cp -vp /usr/lib/libpango-1.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libX11.so.6 $CHROOT/usr/lib/
cp -vp /usr/lib/libXfixes.so.3 $CHROOT/usr/lib/
cp -vp /usr/lib/libgobject-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libgmodule-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libgthread-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libglib-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libSM.so.6 $CHROOT/usr/lib/
cp -vp /usr/lib/libpangocairo-1.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libcairo.so.2 $CHROOT/usr/lib/
cp -vp /usr/lib/libpixman-1.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libXau.so.6 $CHROOT/usr/lib/
cp -vp /usr/lib/libXdmcp.so.6 $CHROOT/usr/lib/
cp -vp /usr/lib/libgio-2.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libpangoft2-1.0.so.0 $CHROOT/usr/lib/
cp -vp /usr/lib/libfreetype.so.6 $CHROOT/usr/lib/
cp -vp /usr/lib/libICE.so.6 $CHROOT/usr/lib/
cp -vp /lib/libuuid.so.1 $CHROOT/lib/
cp -vp /lib/libresolv.so.2 $CHROOT/lib/

# Copy python modules and includes (do we really need ALL of them?!)
echo "Copying python modules..."
cp -aRv /usr/lib/python$PYTHONV $CHROOT/usr/lib/
echo "Copying python includes..."
cp -aRv /usr/include/python$PYTHONV $CHROOT/usr/include/

# Get fonts so things don't look ugly
echo "Setting up fonts..."
cp -vRp /usr/share/fonts/ $CHROOT/usr/share/fonts/
mkdir -v $CHROOT/etc/fonts/
cp -vp /etc/fonts/fonts.conf $CHROOT/etc/fonts/

# to resolve DNS names
echo "Adding DNS resolution..."
cp -av /lib/libnss_dns* $CHROOT/lib/
cp -vp /lib/libcom_err.so.2 $CHROOT/lib/
cp -vp /lib/libz.so.1 $CHROOT/lib/

# We will need to copy this file any time our internet connection changes!
cp -vp /etc/resolv.conf $CHROOT/etc/

# We will need to actually work as this jailed user, so
# we want a nicer looking and functional shell as per:
# http://en.gentoo-wiki.com/wiki/Jail
echo "Making a pretty and functional shell..."
mkdir $CHROOT/etc/bash/
cp -vp /etc/bash/bashrc $CHROOT/etc/bash/
cp -vp /etc/profile $CHROOT/etc/
cp -vp /etc/DIR_COLORS $CHROOT/etc/
addjailsw $CHROOT -P whoami

# Create dropbox user home directory
echo "Creating DropBox home..."
mkdir -p $CHROOT/home/dropbox

# Ensure permissions are correct
# (Is it really necessary?  We preserved file permissions in the above steps...)
echo "Ensuring correct permissions..."
chmod -R 755 $CHROOT
if cd $CHROOT; then
 for i in bin dev etc home usr var; do
  find "$i" -type d -exec chmod 755 {} \;
 done
else
 echo "Could not change directory to $CHROOT, aborting."
fi
if cd $CHROOT/etc; then
 chmod 644 passwd profile resolv.conf DIR_COLORS
 find bash/ -type f -exec chmod 644 {} \;
else
 echo "Could not change directory to $CHROOT/etc, aborting."
fi

cd $CHROOT

# Download dropbox
echo "Downloading DropBox..."
wget -O $CHROOT/home/dropbox/dropbox.tar.gz $DBURL

echo "Extracting DropBox..."
tar xvf $CHROOT/home/dropbox/dropbox.tar.gz -C $CHROOT/home/dropbox/

# Gentoo Wiki order on this next step was wrong
# DropBox cannot find these python shared objects in the correct location
echo "Fixing some Python shared objects..."
cp -av /usr/lib/python$PYTHONV/lib-dynload/_sha.so $CHROOT/home/dropbox/.dropbox-dist/
cp -av /usr/lib/python$PYTHONV/lib-dynload/_md5.so $CHROOT/home/dropbox/.dropbox-dist/

echo "Ensuring correct permissions of the DropBox base system..."
chown dropbox:users -R $CHROOT/home/dropbox/.dropbox-dist/

if [ ! -d "$CHROOT/home/dropbox/Dropbox" ];then
	mkdir $CHROOT/home/dropbox/Dropbox
	echo "Created DropBox: $CHROOT/home/dropbox/Dropbox"
	echo "Please symlink this from your home directory (or whereever)"
	chown dropbox:users $CHROOT/home/dropbox/Dropbox
fi

mkdir $CHROOT/proc

echo "All done!"
echo "Please run the following commands to begin:"
printf "\tmount -t proc none $CHROOT/proc\n"
printf "\tmount -o bind /dev $CHROOT/dev\n"
printf "\tsu dropbox\n"
printf "\tcd .dropbox-dist\n
printf "\t./dropboxd\n"