#!/usr/bin/env python
import os,sys
import CryptoBox
try:
	import cherrypy
except: 
	print "could not import cherrypy module! Try apt-get install python-cherrypy."
	sys.exit(1)
try:
	import neo_cgi, neo_util, neo_cs
except:
	print "could not import clearsilver modules! Try apt-get install python-clearsilver."
	

class clearsilver:
	def __init__(self):
		pass
		
		
	def render(self,cs_path,settings = {},hdf_path = ""):
		"""
		render a clearsilver template and return the result.
		gets:
		- path to clearsilver template
		- dictionary with settings (optional)
		- path to hdf dataset (optional)
		"""
		
		hdf=neo_util.HDF()
		if hdf_path != "":
			hdf.readFile(hdf_path)
		for key in settings.keys():
			hdf.setValue(key,str(settings[key]))
		cs= neo_cs.CS(hdf)
		cs.parseFile(cs_path)
		return cs.render()
	

class CryptoBoxSite(CryptoBox.CryptoBoxProps):
	def index(self,action="show_status",page="",weblang="",device="", type=""):

		#PROPOSAL:
		#cherrypy could create nice paths like http://crypto.box/doc/, 
		#but that would require an update of the links in the templates.
		#is the style worth it?


		#sanitize input
		page = self.sanitize_input(page)
		action = self.sanitize_input(action)		
		device = self.sanitize_input(device)		
		type = self.sanitize_input(type)
		#setting settings ;)
		settings={}
		TemplateDir = self.cbxPrefs["Settings"]["TemplateDir"]
		settings["Settings.TemplateDir"] = TemplateDir
		settings["Settings.Stylesheet"] = self.cbxPrefs["Settings"]["Stylesheet"]
		LangDir = self.cbxPrefs["Settings"]["LangDir"]
		settings["Settings.LangDir"] = LangDir
		Language = self.cbxPrefs["Settings"]["Language"]
		settings["Settings.DocDir"] = self.cbxPrefs["Settings"]["DocDir"]
		settings["Settings.DocLang"] = self.cbxPrefs["Settings"]["DocLang"]

		
		# BEWARE: there are two kinds of actions:
		#     * some require a harddisk
		#     * some do not require a harddisk
		# take care, that you put a new action into the appropriate block below

		
		
		#TODO: check for ssl, see cryptobox.pl lines 483-9
		
		#--------------------------------------------------------------#
		# here you may define all cases that do not require a harddisk #
		# put all other cases below the harddisk check                 #
		#--------------------------------------------------------------#
		#################### show_log #######################
		if action == "show_log":
			settings["Data.Action"] = "show_log"
		##################### doc ############################
		elif action == "doc":
			settings["Data.Action"] = "show_doc"
			if page != "":
				
				settings["Data.Doc.Page"] = page
			else:
				settings["Data.Doc.Page"] ="CryptoBoxUser"
		

		##################### poweroff ######################
		elif action == "system_ask":
			settings["Data.Action"] = "form_system"
		##################### reboot ########################
		elif action == "shutdown_do":
			if type == "reboot":
				#TODO: call function for system reboot
				pass
				settings["Data.Success"] = "ReBoot"
				settings["Data.Redirect.Action"] = "show_status"
				settings["Data.Redirect.Delay"] = "180"
			else:
				settings["Data.Success"] = "PowerOff"
			settings["Data.Action"] = "empty"
		##################### check for a harddisk ##########################
		# catch this error, to prevent all following actions from execution #
		#####################################################################
		elif not True: #TODO: replace True with check for hard disk is_harddisk_available()
			settings["Data.Error"] = "NoHardDisk"
		#-------------------------------------------------------#
		# here you may define all cases that require a harddisk #
		#-------------------------------------------------------#
		################ umount_do #######################
		elif action == "unmount_do":
			if device == "":
				#TODO: debug message: "invalid device: "+ device
				settings["Data.Warning"] = "InvalidDevice"
				settings["Data.Action"] = "empty"
			elif not True: #TODO: replace True with check_config()
				settings["Data.Warning"] = "NotInitialized"
				settings["Data.Action"] = "form_init"
			elif True: #TODO: replace True with check_init_running()
				settings["Data.Warning"] = "InitNotFinished"
				settings["Data.Action"] = "empty"
				settings["Data.Redirect.Action"] = "form_config"
				settings["Data.Redirect.Delay"] = "30"
			elif not True: #TODO: replace True with check_mounted(device)
				settings["Data.Warning"] = "NotMounted"
				settings["Data.Action"] = "show_volume"
			else: #unmount
				#TODO: replace this line with umount_vol(device)
				if True: #TODO: replace True with check_mounted(device)
					settings["Data.Warning"] = "UmountFailed"
					settings["Data.Action"] = "show_volume"
				else:
					settings["Data.Action"] = "show_volume"
		################ mount_do ########################					
		elif action == "mount_do":
			if device != "":
				pass #TODO: is_encrypted = check_device_encryption(device)
			if device == "":
				#TODO: debug_msg(DEBUG_INFO, "invalid device: " + device)
				settings["Data.Warning"] = "InvalidDevice"
				settings["Data.Action"] = "empty"
			elif not True: #TODO: replace True with check_config()
				settings["Data.Warning"] = "NotInitialized"
				settings["Data.Action"] = "form_init"
		#at cryptobox.pl line 568
				
				
			
		
		#go render stuff
		cs = clearsilver()
		content = cs.render(TemplateDir+"/main.cs",settings,LangDir+"/"+Language+".hdf")
		return content


	def sanitize_input(self,data):
		#TODO: do things
		return data
	index.exposed = True

##############################################################

cherrypy.root = CryptoBoxSite()
#expose static content:
#I currently have no idea how to cleanly extract the stylesheet path from 
#the config object without an extra CryptoBox.CryptoBoxProps instance.
#perhaps put config handling into a seperate class in CryptoBox.py?
cherrypy.config.configMap.update(
	{ 
	"/cryptobox.css": { 
			"staticFilter.on" : True, 
			"staticFilter.file": os.path.abspath("../www-data/cryptobox.css" )
			}
	})
cherrypy.server.start()