Use system dbus for communication between frontend and script

Install configuration file in /etc/dbus-1/system.d for proper permissions
Modified some text strings

Makefile

@@ -14,8 +14,9 @@ bindir 		:= /usr/bin
 sbindir 	:= /usr/sbin
 sysconfdir	:= /etc
 datadir 	:= /usr/share
-mambadir 	:= /usr/share/openmamba
-polkitdir 	:= /usr/share/polkit-1/actions
+mambadir 	:= ${datadir}/openmamba
+polkitdir 	:= ${datadir}/polkit-1/actions
+dbussystemdir 	:= ${sysconfdir}/dbus-1/system.d
 localesdir 	:= ${datadir}/locale
 
 DESTDIR 	:=
@@ -50,6 +51,7 @@ install-dirs:
 	@$(INSTALL_DIR) $(DESTDIR)$(datadir)/applications
 	@$(INSTALL_DIR) $(DESTDIR)$(mambadir)/usbinstall/img
 	@$(INSTALL_DIR) $(DESTDIR)$(polkitdir)
+	@$(INSTALL_DIR) $(DESTDIR)$(dbussystemdir)
 
 install: install-dirs install-locales
 	$(INSTALL_PROGRAM) src/usbinstall.py $(DESTDIR)$(mambadir)/usbinstall/usbinstall.py
@@ -57,6 +59,7 @@ install: install-dirs install-locales
 	$(INSTALL_DATA) src/fdisk_template $(DESTDIR)$(mambadir)/usbinstall/fdisk_template
 	$(INSTALL_DATA) src/img/*.png $(DESTDIR)$(mambadir)/usbinstall/img/
 	$(INSTALL_DATA) src/org.openmamba.usbinstall.policy $(DESTDIR)$(polkitdir)/org.openmamba.usbinstall.policy
+	$(INSTALL_DATA) src/org.openmamba.usbinstall.conf $(DESTDIR)$(dbussystemdir)/org.openmamba.usbinstall.conf
 	$(INSTALL_DATA) src/usbinstall.desktop $(DESTDIR)$(datadir)/applications/usbinstall.desktop
 
 clean: 

src/org.openmamba.usbinstall.conf

@@ -0,0 +1,12 @@
+<!DOCTYPE busconfig PUBLIC
+ "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
+ "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
+<busconfig>
+        <policy user="root">
+                <allow send_destination="org.openmamba.usbinstall"/>
+        </policy>
+        <policy at_console="true">
+                <allow own="org.openmamba.usbinstall"/>
+        </policy>
+</busconfig>
+

src/usbinstall.py

@@ -294,10 +294,10 @@ class set_dbus(dbus.service.Object):
 		return 0
 
 def dbus_start():
-	session_bus = dbus.SessionBus()
-	bus_name = dbus.service.BusName('org.openmamba.usbinstall', bus=session_bus)
+	session_bus = dbus.SystemBus()
+	bus_name = dbus.service.BusName('org.openmamba.usbinstall', bus=dbus.SystemBus())
 	dbus_loop = set_dbus(bus_name)
-	bus = dbus.SessionBus(mainloop=dbus_loop)
+	bus = dbus.SystemBus(mainloop=dbus_loop)
 #4)###############################(DBUS CODE)########################################
 
 
@@ -368,7 +368,7 @@ def step4():
 	# Show the progressBar
 	window.p_install.show()
 	dbus_start()
-	process_sh = Popen(["pkexec", "/usr/sbin/usbinstall", path_dev, path_cpio, path_iso, "-y"], env={"DBUS_USBINSTALL": "1"})
+	process_sh = Popen(["pkexec", "/usr/sbin/usbinstall", path_dev, path_cpio, path_iso, "-d"])
 
 
 # Show a list of object (step 1 and 2)

src/usbinstall.sh

@@ -68,7 +68,7 @@ function dbus_properties_get_bool() {
 set_pbar()
 {
 	if [ "$DBUS_USBINSTALL" == "1" ]; then
-		dbus-send --print-reply --session --dest=org.openmamba.usbinstall /org/openmamba/usbinstall org.openmamba.usbinstall.Set_progressBar int32:$1
+		dbus-send --system --print-reply --dest=org.openmamba.usbinstall /org/openmamba/usbinstall org.openmamba.usbinstall.Set_progressBar int32:$1 >/dev/null
 	fi
 }
 
@@ -77,7 +77,7 @@ set_pbar()
 set_status()
 {
 	if [ "$DBUS_USBINSTALL" == "1" ]; then
-		dbus-send --print-reply --session --dest=org.openmamba.usbinstall /org/openmamba/usbinstall org.openmamba.usbinstall.Set_description "string:$1"
+		dbus-send --system --print-reply --dest=org.openmamba.usbinstall /org/openmamba/usbinstall org.openmamba.usbinstall.Set_description "string:$1" >/dev/null
 	fi
 }
 ####################################(DBUS)###########################################
@@ -95,13 +95,12 @@ function errorAndExit()
 
 function usage()
 {
-	echo "Usbistall: write Openmamba into your usb key!"
+	echo "usbinstall: install openmamba into your usb key!"
 	echo -e "\tUsage: sudo usbinstall Arg1 Arg2 Arg3 [-y]"
-	echo -e "\tArg 1: Usb device path (es. /dev/sdc)"
-	echo -e "\tArg 2: Cpio.gz file (es. ~/openmamba-bootusb-it-milestone2-2.0pre8.i586.cpio.gz)"
-	echo -e "\tArg 3: Iso file (es. ~/openmamba-livecd-it-milestone2-2.0pre8.i586.iso)"
-	echo -e "\t-y: Installa senza chiedere alcuna conferma [Attenzione!]"
-
+	echo -e "\tArg 1: Usb device path (e.g. /dev/sdc)"
+	echo -e "\tArg 2: Cpio.gz file (e.g. ~/openmamba-bootusb-it-milestone2-2.0pre8.i586.cpio.gz)"
+	echo -e "\tArg 3: Iso file (e.g. ~/openmamba-livecd-it-milestone2-2.0pre8.i586.iso)"
+	echo -e "\t-y: install without asking confirmation [Be careful!]"
 }
 
 
@@ -126,7 +125,7 @@ if [ -b "$1" ]; then	# If is a block device
 	if [ "$ISKEY" = "true" ]; then	# If is a usb
 		export SELECT_USB=$1
 	else # If not, user can choose
-		echo "Warning: you haven't choose a usb key ($1). Are you sure to continue? [yes/no]"
+		echo "Warning: you haven't choosen a usb key ($1). Are you sure to continue? [yes/no]"
 		read KEY
 		case "$KEY" in
 			yes)
@@ -159,7 +158,7 @@ fi
 # Check if Arg 3 is valid
 if [ -f "$3" ]; then	# Check if is a file
 	if [ -r "$3" ]; then	# Chek is is readable
-		export SELECT_ISO=$3
+		SELECT_ISO=$3
 	else
 		errorAndExit "Error(Arg 3): \"$3\" is not readable" 1
 	fi
@@ -173,9 +172,12 @@ fi
 
 # Confirm
 if [ "$4" = "-y" ]; then
-	export CONFIRM=0
+	CONFIRM=0
+elif [ "$4" = "-d" ]; then
+	CONFIRM=0
+	DBUS_USBINSTALL=1
 else
-	export CONFIRM=1
+	CONFIRM=1
 fi
 #################################(INITIAL-CHECK)#####################################
 
@@ -242,6 +244,7 @@ if [ ! -d "$MOUNTDIR" ]; then
 fi
 
 set_status "Estrazione del file di boot in corso..."
+echo "Extracting bootusb archive..."
 pushd $MOUNTDIR >/dev/null
 sudo chmod 777 ./
 gunzip -c $SELECT_BOOT | cpio -i
@@ -255,6 +258,7 @@ set_pbar 45
 
 
 set_status "Copia del file iso di openmamba in corso..."
+echo "Copying ISO..."
 # Copy code
 ORIG_SIZE=`stat -c %s $SELECT_ISO`
 cp $SELECT_ISO ./ &
@@ -279,4 +283,5 @@ LANG=C udisks --unmount ${SELECT_USB}1 |  grep failed && {
 	exit 2
 }
 set_pbar 100
+echo "Done."
 #################################(INSTALLATION)######################################