network/freenx: Added (Free implementation of the NX Server)

Thanks to Eric Hameleers (alienBOB) for the original script
on which this one is based.

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

1 files changed, 111 insertions, 0 deletions

diff --git a/network/freenx/doinst.sh b/network/freenx/doinst.sh
new file mode 100644
index 0000000000..440c22901f
--- /dev/null
+++ b/network/freenx/doinst.sh
@@ -0,0 +1,111 @@
+config() {
+  for infile in $1; do
+    NEW="$infile"
+    OLD="$(dirname $NEW)/$(basename $NEW .new)"
+    if [ ! -r $OLD ]; then
+      mv $NEW $OLD
+    elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
+      rm $NEW
+    fi
+  done
+}
+preserve_perms() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  if [ -e $OLD ]; then
+    cp -a $OLD ${NEW}.incoming
+    cat $NEW > ${NEW}.incoming
+    mv ${NEW}.incoming $NEW
+  fi
+  config $NEW
+}
+
+config etc/nxserver/node.conf.new
+config etc/logrotate.d/freenx-server.new
+preserve_perms etc/rc.d/rc.freenx.new
+
+chroot . <<EOCR 2>/dev/null
+export \$(grep ^NX_DIR usr/bin/nxloadconfig)
+export \$(grep ^NX_HOME_DIR usr/bin/nxloadconfig)
+export \$(grep ^NX_SESS_DIR usr/bin/nxloadconfig)
+export \$(grep ^NX_ETC_DIR usr/bin/nxloadconfig)
+export \$(grep ^NX_LOGFILE usr/bin/nxloadconfig)
+export \$(grep ^SSH_AUTHORIZED_KEYS usr/bin/nxloadconfig)
+
+touch \${NX_ETC_DIR}/passwords \${NX_ETC_DIR}/passwords.orig \${NX_LOGFILE}
+chmod 600 \${NX_ETC_DIR}/pass* \${NX_LOGFILE}
+
+if [ ! -e \${NX_ETC_DIR}/users.id_dsa ]; then
+  ssh-keygen -f \${NX_ETC_DIR}/users.id_dsa -t dsa -N "" > /dev/null 2>&1
+fi
+
+if [ -e \${NX_HOME_DIR}/.ssh/client.id_dsa.key ] && \
+   [ -e \${NX_HOME_DIR}/.ssh/server.id_dsa.pub.key ]; then
+  # There is a pre-existing NX installation. We use the ~nx/.ssh files.
+  echo "Copying existing nx ssh keys to \${NX_ETC_DIR} ."
+  cp -af \${NX_HOME_DIR}/.ssh/client.id_dsa.key \
+    \${NX_ETC_DIR}/client.id_dsa.key
+  cp -af \${NX_HOME_DIR}/.ssh/server.id_dsa.pub.key \
+    \${NX_ETC_DIR}/server.id_dsa.pub.key
+fi
+
+if [ ! -e \${NX_ETC_DIR}/client.id_dsa.key ] || \
+   [ ! -e \${NX_ETC_DIR}/server.id_dsa.pub.key ]; then
+  # We are going to create a new SSH key for the FreeNX server.
+  # The NX client must import this key into it's configuration to be able to
+  # connect to the FreeNX server.
+  # If you're security minded, use this key exclusively, and remove the
+  # NoMachine key from ${NX_HOME_DIR}/.ssh/authorized_keys.
+  echo "Creating a new SSH key for the FreeNX server."
+  rm -f \${NX_ETC_DIR}/client.id_dsa.key
+  rm -f \${NX_ETC_DIR}/server.id_dsa.pub.key
+  ssh-keygen -q -t dsa -N '' -f \${NX_ETC_DIR}/local.id_dsa
+  mv \${NX_ETC_DIR}/local.id_dsa \${NX_ETC_DIR}/client.id_dsa.key
+  mv \${NX_ETC_DIR}/local.id_dsa.pub \${NX_ETC_DIR}/server.id_dsa.pub.key
+
+  # Put our fresh key files in place.
+  cp -f \${NX_ETC_DIR}/client.id_dsa.key \
+    \${NX_HOME_DIR}/.ssh/client.id_dsa.key
+  cp -f \${NX_ETC_DIR}/server.id_dsa.pub.key \
+    \${NX_HOME_DIR}/.ssh/server.id_dsa.pub.key
+  chmod 600 \
+    \${NX_ETC_DIR}/client.id_dsa.key \
+    \${NX_ETC_DIR}/server.id_dsa.pub.key \
+    \${NX_HOME_DIR}/.ssh/client.id_dsa.key \
+    \${NX_HOME_DIR}/.ssh/server.id_dsa.pub.key
+  echo -n "no-port-forwarding,no-X11-forwarding,no-agent-forwarding,command=\"/usr/bin/nxserver\" "\
+    > \${NX_HOME_DIR}/.ssh/authorized_keys
+  cat \${NX_HOME_DIR}/.ssh/server.id_dsa.pub.key \
+    >> \${NX_HOME_DIR}/.ssh/authorized_keys
+  chmod 640 \${NX_HOME_DIR}/.ssh/authorized_keys
+  echo -n "127.0.0.1 " > \${NX_HOME_DIR}/.ssh/known_hosts
+  cat etc/ssh/ssh_host_rsa_key.pub >> \${NX_HOME_DIR}/.ssh/known_hosts
+
+  # Add the Nomachine pubkey to ${NX_HOME_DIR}/.ssh/authorized_keys
+  # This way, any NX client can connect to our FreeNX server without
+  # having to import our own FreeNX private key.
+  # If you want an "out-of-the-box" experience, leave the NoMachine key in
+  # ${NX_HOME_DIR}/.ssh/authorized_keys. If you're paranoid, remove
+  # this pubkey and accept only clients who have our custom FreeNX key.
+  cat <<_EOT_ >> \${NX_HOME_DIR}/.ssh/authorized_keys
+no-port-forwarding,no-X11-forwarding,no-agent-forwarding,command="/usr/bin/nxserver" ssh-dss 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 root@nettuno
+_EOT_
+fi # end "no pre-existing NX ssh keys"
+
+if [ -e var/lib/nxserver/running ]; then
+  mv var/lib/nxserver/running/* \${NX_SESS_DIR}/running
+  mv var/lib/nxserver/closed/* \${NX_SESS_DIR}/closed
+  mv var/lib/nxserver/failed/* \${NX_SESS_DIR}/failed
+  rm -rf var/lib/nxserver/running
+  rm -rf var/lib/nxserver/closed
+  rm -rf var/lib/nxserver/failed
+fi
+
+chown -R nx:root var/lib/nxserver
+chown -R nx:root \${NX_SESS_DIR}
+chown -R nx:root \${NX_ETC_DIR}
+chown -R nx:root \${NX_HOME_DIR}
+chown nx:root \${NX_LOGFILE}
+
+EOCR
+