moved pythonrewrite branch to trunk

bin-perl-old/cryptobox.pl

@@ -532,7 +532,7 @@ if ( ! &check_ssl()) {
 		if ($device eq '') {
 			&debug_msg(DEBUG_INFO, "invalid device: " . $query->param('device'));
 			$pagedata->setValue('Data.Warning', 'InvalidDevice');
-			$pagedata->setValue('Data.Action', 'empty');
+			$pagedata->setValue('Data.Action', 'emptu');
 		} elsif ( ! &check_config()) {
 			$pagedata->setValue('Data.Warning', 'NotInitialized');
 			$pagedata->setValue('Data.Action', 'form_init');

bin/CryptoBox.py

@@ -0,0 +1,276 @@
+#!/usr/bin/env python2.4
+'''
+This is the web interface for a fileserver managing encrypted filesystems.
+ 
+It was originally written in bash/perl. Now a complete rewrite is in
+progress. So things might be confusing here. Hopefully not for long.
+:)
+'''
+
+# check python version
+import sys
+(ver_major, ver_minor, ver_sub, ver_desc, ver_subsub) = sys.version_info
+if (ver_major < 2) or ((ver_major == 2) and (ver_minor < 4)):
+	sys.stderr.write("You need a python version >= 2.4\nCurrent version is:\n %s\n" % sys.version)
+	sys.exit(1)
+
+import CryptoBoxContainer
+from CryptoBoxExceptions import *
+import re
+import os
+import CryptoBoxTools
+import subprocess
+
+
+
+class CryptoBox:
+	'''this class rules them all!
+
+	put things like logging, conf and oter stuff in here,
+	that might be used by more classes, it will be passed on to them'''
+
+	VERSION = "0.3~1"
+
+	def __init__(self, config_file=None):
+		import CryptoBoxSettings
+		self.log = self.__getStartupLogger()
+		self.prefs = CryptoBoxSettings.CryptoBoxSettings(config_file)
+		self.__runTests()
+
+
+	def __getStartupLogger(self):	
+		import logging
+		'''initialises the logging system
+		
+		use it with: 'self.log.[debug|info|warning|error|critical](logmessage)'
+		all classes should get the logging instance during __init__:
+			self.log = logging.getLogger("CryptoBox")
+
+		first we output all warnings/errors to stderr
+		as soon as we opened the config file successfully, we redirect debug output
+		to the configured destination'''
+		## basicConfig(...) needs python >= 2.4
+		try:
+			log_handler = logging.getLogger("CryptoBox")
+			logging.basicConfig(
+				format='%(asctime)s CryptoBox %(levelname)s: %(message)s',
+				stderr=sys.stderr)
+			log_handler.setLevel(logging.ERROR)
+			log_handler.info("loggingsystem is up'n running")
+			## from now on everything can be logged via self.log...
+		except:
+			raise CBEnvironmentError("couldn't initialise the loggingsystem. I give up.")
+		return log_handler
+
+
+	# do some initial checks
+	def __runTests(self):
+		self.__runTestUID()
+		self.__runTestRootPriv()
+
+	
+	def __runTestUID(self):
+		if os.geteuid() == 0:
+			raise CBEnvironmentError("you may not run the cryptobox as root")
+
+
+	def __runTestRootPriv(self):
+		"""try to run 'super' with 'CryptoBoxRootActions'"""
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			raise CBEnvironmentError("could not open %s for writing!" % os.devnull)
+		try:
+			prog_super = self.prefs["Programs"]["super"]
+		except KeyError:
+			raise CBConfigUndefinedError("Programs", "super")
+		try:
+			prog_rootactions = self.prefs["Programs"]["CryptoBoxRootActions"]
+		except KeyError:
+			raise CBConfigUndefinedError("Programs", "CryptoBoxRootActions")
+		try:
+			proc = subprocess.Popen(
+				shell = False,
+				stdout = devnull,
+				stderr = devnull,
+				args = [prog_super, prog_rootactions, "check"])
+		except OSError:
+			raise CBEnvironmentError("failed to execute 'super' (%s)" % self.prefs["Programs"]["super"])
+		proc.wait()
+		if proc.returncode != 0:
+			raise CBEnvironmentError("failed to call CryptoBoxRootActions (%s) via 'super' - maybe you did not add the appropriate line to /etc/super.tab?" % prog_rootactions)
+
+
+	# this method just demonstrates inheritance effects - may be removed
+	def cbx_inheritance_test(self, string="you lucky widow"):
+		self.log.info(string)
+	
+
+# RFC: why should CryptoBoxProps inherit CryptoBox? [l]
+# RFC: shouldn't we move all useful functions of CryptoBoxProps to CryptoBox? [l]
+class CryptoBoxProps(CryptoBox):
+	'''Get and set the properties of a CryptoBox
+
+	This class contains all available devices that may be accessed.
+	All properties of the cryptobox can be accessed by this class.
+	'''
+
+	def __init__(self, config_file=None):
+		'''read config and fill class variables'''
+		CryptoBox.__init__(self, config_file)
+		self.reReadContainerList()
+	
+
+	def reReadContainerList(self):
+		self.log.debug("rereading container list")
+		self.containers = []
+		for device in CryptoBoxTools.getAvailablePartitions():
+			if self.isDeviceAllowed(device) and not self.isConfigPartition(device):
+				self.containers.append(CryptoBoxContainer.CryptoBoxContainer(device, self))
+		## sort by container name
+		self.containers.sort(cmp = lambda x,y: x.getName() < y.getName() and -1 or 1)
+	
+
+	def isConfigPartition(self, device):
+		proc = subprocess.Popen(
+			shell = False,
+			stdout = subprocess.PIPE,
+			args = [
+				self.prefs["Programs"]["blkid"],
+				"-c", os.path.devnull,
+				"-o", "value",
+				"-s", "LABEL",
+				device])
+		(output, error) = proc.communicate()
+		return output.strip() == self.prefs["Main"]["ConfigVolumeLabel"]
+
+
+	def isDeviceAllowed(self, devicename):
+		"check if a device is white-listed for being used as cryptobox containers"
+		import types
+		allowed = self.prefs["Main"]["AllowedDevices"]
+		if type(allowed) == types.StringType: allowed = [allowed]
+		for a_dev in allowed:
+			"remove double dots and so on ..."
+			real_device = os.path.realpath(devicename)
+			if a_dev and re.search('^' + a_dev, real_device):	return True
+		return False
+
+
+	def getLogData(self, lines=None, maxSize=None):
+		"""get the most recent log entries of the cryptobox
+
+		the maximum number and size of these entries can be limited by 'lines' and 'maxSize'
+		"""
+		# return nothing if the currently selected log output is not a file
+		try:
+			if self.prefs["Log"]["Destination"].upper() != "FILE": return []
+			log_file = self.prefs["Log"]["Details"]
+		except KeyError:
+			self.log.error("could not evaluate one of the following config settings: [Log]->Destination or [Log]->Details")
+			return []
+		try:
+			fd = open(log_file, "r")
+			if maxSize:	fd.seek(-maxSize, 2)	# seek relative to the end of the file
+			content = fd.readlines()
+			fd.close()
+		except IOError:
+			self.log.warn("failed to read the log file (%s)" % log_file)
+			return []
+		if lines:	content = content[-lines:]
+		content.reverse()
+		return content
+
+
+	def getContainerList(self, filterType=None, filterName=None):
+		"retrieve the list of all containers of this cryptobox"
+		try:
+			result = self.containers[:]
+			if filterType != None:
+				if filterType in range(len(CryptoBoxContainer.Types)):
+					return [e for e in self.containers if e.getType() == filterType]
+				else:
+					self.log.info("invalid filterType (%d)" % filterType)
+					result.clear()
+			if filterName != None:
+				result = [e for e in self.containers if e.getName() == filterName]
+			return result
+		except AttributeError:
+			return []
+
+
+	def getContainer(self, device):
+		"retrieve the container element for this device"
+		all = [e for e in self.getContainerList() if e.device == device]
+		if all:
+			return all[0]
+		else:
+			return None
+
+
+	def setNameForUUID(self, uuid, name):
+		"assign a name to a uuid in the ContainerNameDatabase"
+		used_uuid = self.getUUIDForName(name)
+		"first remove potential conflicting uuid/name combination"
+		if used_uuid:
+			## remember the container which name was overriden
+			for e in self.containers:
+				if e.getName() == name:
+					forcedRename = e
+					break
+			del self.prefs.nameDB[used_uuid]
+		self.prefs.nameDB[uuid] = name
+		self.prefs.nameDB.write()
+		## rename the container that lost its name (necessary while we use cherrypy)
+		if used_uuid:
+			## this is surely not the best way to regenerate the name
+			dev = e.getDevice()
+			old_index = self.containers.index(e)
+			self.containers.remove(e)
+			self.containers.insert(old_index, CryptoBoxContainer.CryptoBoxContainer(dev,self))
+		## there should be no reason for any failure
+		return True
+
+
+	def getNameForUUID(self, uuid):
+		"get the name belonging to a specified key (usually the UUID of a fs)"
+		try:
+			return self.prefs.nameDB[uuid]
+		except KeyError:
+			return None
+	
+
+	def getUUIDForName(self, name):
+		"""	get the key belonging to a value in the ContainerNameDatabase
+			this is the reverse action of 'getNameForUUID'	"""
+		for key in self.prefs.nameDB.keys():
+			if self.prefs.nameDB[key] == name: return key
+		"the uuid was not found"
+		return None
+	
+
+	def removeUUID(self, uuid):
+		if uuid in self.prefs.nameDB.keys():
+			del self.prefs.nameDB[uuid]
+			return True
+		else:
+			return False
+
+
+	def getAvailableLanguages(self):
+		'''reads all files in path LangDir and returns a list of
+		basenames from existing hdf files, that should are all available
+		languages'''
+		languages = [ f.rstrip(".hdf")
+			for f in os.listdir(self.prefs["Locations"]["LangDir"])
+			if f.endswith(".hdf") ]
+		if len(languages) < 1:
+			self.log.error("No .hdf files found! The website won't render properly.")
+		return languages
+
+
+
+
+if __name__ == "__main__":
+	cb = CryptoBoxProps()
+

bin/CryptoBoxContainer.py

@@ -0,0 +1,607 @@
+#!/usr/bin/env python2.4
+
+## check python version
+import sys
+(ver_major, ver_minor, ver_sub, ver_desc, ver_subsub) = sys.version_info
+if (ver_major < 2) or ((ver_major == 2) and (ver_minor < 4)):
+	sys.stderr.write("You need a python version >= 2.4\nCurrent version is:\n %s\n" % sys.version)
+	sys.exit(1)
+
+import subprocess
+import os
+import re
+import logging
+from CryptoBoxExceptions import *
+
+"""exceptions:
+	VolumeIsActive
+	NameActivelyUsed
+	InvalidName
+	InvalidPassword
+	InvalidType
+	CreateError
+	MountError
+	ChangePasswordError
+	"""
+
+class CryptoBoxContainer:
+
+	Types = {
+		"unused":0,
+		"plain":1,
+		"luks":2,
+		"swap":3}
+	
+
+	__fsTypes = {
+		"plain":["ext3", "ext2", "vfat", "reiser"],
+		"swap":["swap"]}
+	# TODO: more filesystem types? / check 'reiser'
+
+	__dmDir = "/dev/mapper"
+
+
+	def __init__(self, device, cbox):
+		self.device = device
+		self.cbox = cbox
+		self.log = logging.getLogger("CryptoBox")
+		self.resetObject()
+
+
+	def getName(self):
+		return self.name
+
+
+	def setName(self, new_name):
+		if new_name == self.name: return
+		if self.isMounted():
+			raise CBVolumeIsActive("the container must be inactive during renaming")
+		if not re.search(r'^[a-zA-Z0-9_\.\- ]+$', new_name):
+			raise CBInvalidName("the supplied new name contains illegal characters")
+		"check for active partitions with the same name"
+		prev_name_owner = self.cbox.getContainerList(filterName=new_name)
+		if prev_name_owner:
+			for a in prev_name_owner:
+				if a.isMounted():
+					raise CBNameActivelyUsed("the supplied new name is already in use for an active partition")
+		if not self.cbox.setNameForUUID(self.uuid, new_name):
+			raise CBContainerError("failed to change the volume name for unknown reasons")
+		self.name = new_name
+
+
+	def getDevice(self):
+		return self.device
+
+
+	def getType(self):
+		return self.type
+
+
+	def isMounted(self):
+		return os.path.ismount(self.__getMountPoint())
+	
+
+	def getCapacity(self):
+		"""return the current capacity state of the volume
+
+		the volume may not be mounted
+		the result is a tuple of values in megabyte:
+			(size, available, used)
+		"""
+		info = os.statvfs(self.__getMountPoint())
+		return (
+			int(info.f_bsize*info.f_blocks/1024/1024),
+			int(info.f_bsize*info.f_bavail/1024/1024),
+			int(info.f_bsize*(info.f_blocks-info.f_bavail)/1024/1024))
+	
+
+	def getSize(self):
+		"""return the size of the block device (_not_ of the filesystem)
+
+		the result is a value in megabyte
+		an error is indicated by "-1"
+		"""
+		import CryptoBoxTools
+		return CryptoBoxTools.getBlockDeviceSize(self.device)
+
+
+	def resetObject(self):
+		"""	recheck the information about this container
+			this is especially useful after changing the type via 'create'	"""
+		self.uuid = self.__getUUID()
+		self.type = self.__getTypeOfPartition()
+		self.name = self.__getNameOfContainer()
+		if self.type == self.Types["luks"]:
+			self.mount = self.__mountLuks
+			self.umount = self.__umountLuks
+		elif self.type == self.Types["plain"]:
+			self.mount = self.__mountPlain
+			self.umount = self.__umountPlain
+
+
+	def create(self, type, password=None):
+		old_name = self.getName()
+		if type == self.Types["luks"]:
+			self.__createLuks(password)
+		elif type == self.Types["plain"]:
+			self.__createPlain()
+		else:
+			raise CBInvalidType("invalid container type (%d) supplied" % (type, ))
+		## no exception was raised during creation -> we can continue
+		## reset the properties (encryption state, ...) of the device
+		self.resetObject()
+		## restore the old name (must be after resetObject)
+		self.setName(old_name)
+
+
+	def changePassword(self, oldpw, newpw):
+		if self.type != self.Types["luks"]:
+			raise CBInvalidType("changing of password is possible only for luks containers")
+		if not oldpw:
+			raise CBInvalidPassword("no old password supplied for password change")
+		if not newpw:
+			raise CBInvalidPassword("no new password supplied for password change")
+		"return if new and old passwords are the same"
+		if oldpw == newpw: return
+		if self.isMounted():
+			raise CBVolumeIsActive("this container is currently active")
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		"remove any potential open luks mapping"
+		self.__umountLuks()
+		"create the luks header"
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = subprocess.PIPE,
+			stdout = subprocess.PIPE,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["super"],
+				self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+				"cryptsetup",
+				"luksAddKey",
+				self.device,
+				"--batch-mode"])
+		proc.stdin.write("%s\n%s" % (oldpw, newpw))
+		(output, errout) = proc.communicate()
+		if proc.returncode != 0:
+			errorMsg = "Could not add a new luks key: %s - %s" % (output.strip(), errout.strip(), )
+			self.log.error(errorMsg)
+			raise CBChangePasswordError(errorMsg)
+		## retrieve the key slot we used for unlocking
+		keys_found = re.search(r'key slot (\d{1,3}) unlocked', output).groups()
+		if keys_found:
+			keyslot = int(keys_found[0])
+		else:
+			raise CBChangePasswordError("could not get the old key slot")
+		"remove the old key"
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = None,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["cryptsetup"],
+				"--batch-mode",
+				"luksDelKey",
+				self.device,
+				"%d" % (keyslot, )])
+		proc.wait()
+		if proc.returncode != 0:
+			errorMsg = "Could not remove the old luks key: %s" % (proc.stderr.read().strip(), )
+			self.log.error(errorMsg)
+			raise CBChangePasswordError(errorMsg)
+		
+
+
+	" ****************** internal stuff ********************* "
+
+	def __getNameOfContainer(self):
+		"retrieve the name of the container by querying the database"
+		def_name = self.cbox.getNameForUUID(self.uuid)
+		if def_name: return def_name
+		"there is no name defined for this uuid - we will propose a good one"
+		prefix = self.cbox.prefs["Main"]["DefaultVolumePrefix"]
+		unused_found = False
+		counter = 1
+		while not unused_found:
+			guess = prefix + str(counter)
+			if self.cbox.getUUIDForName(guess):
+				counter += 1
+			else:
+				unused_found = True
+		self.cbox.setNameForUUID(self.uuid, guess)
+		return guess
+
+
+	def __getUUID(self):
+		if self.__getTypeOfPartition() == self.Types["luks"]:
+			guess = self.__getLuksUUID()
+		else:
+			guess = self.__getNonLuksUUID()
+		## did we get a valid value?
+		if guess:
+			return guess
+		else:
+			## emergency default value
+			return self.device.replace(os.path.sep, "_")
+
+
+	def __getLuksUUID(self):
+		"""get uuid for luks devices"""
+		proc = subprocess.Popen(
+			shell = False,
+			stdout = subprocess.PIPE,
+			stderr = subprocess.PIPE,
+			args = [self.cbox.prefs["Programs"]["cryptsetup"],
+				"luksUUID",
+				self.device])
+		(stdout, stderr) = proc.communicate()
+		if proc.returncode != 0:
+			self.cbox.log.info("could not retrieve luks uuid (%s): %s", (self.device, stderr.strip()))
+			return None
+		return stdout.strip()
+
+	
+	def __getNonLuksUUID(self):
+		"""return UUID for ext2/3 and vfat filesystems"""
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.warn("Could not open %s" % (os.devnull, ))
+		proc = subprocess.Popen(
+			shell=False,
+			stdout=subprocess.PIPE,
+			stderr=subprocess.PIPE,
+			args=[self.cbox.prefs["Programs"]["blkid"],
+				"-s", "UUID",
+				"-o", "value",
+				"-c", os.devnull,
+				"-w", os.devnull,
+				self.device])
+		(stdout, stderr) = proc.communicate()
+		devnull.close()
+		## execution failed?
+		if proc.returncode != 0:
+			self.log.info("retrieving of partition type (%s) via 'blkid' failed: %s - maybe it is encrypted?" % (self.device, stderr.strip()))
+			return None
+		## return output of blkid
+		return stdout.strip()
+
+
+	def __getTypeOfPartition(self):
+		"retrieve the type of the given partition (see CryptoBoxContainer.Types)"
+		if self.__isLuksPartition(): return self.Types["luks"]
+		typeOfPartition = self.__getTypeIdOfPartition()
+		if typeOfPartition in self.__fsTypes["plain"]:
+			return self.Types["plain"]
+		if typeOfPartition in self.__fsTypes["swap"]:
+			return self.Types["swap"]
+		return self.Types["unused"]
+
+
+	def __getTypeIdOfPartition(self):
+		"returns the type of the partition (see 'man blkid')"
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		proc = subprocess.Popen(
+			shell=False,
+			stdin=None,
+			stdout=subprocess.PIPE,
+			stderr=subprocess.PIPE,
+			args=[self.cbox.prefs["Programs"]["blkid"],
+				"-s", "TYPE",
+				"-o", "value",
+				"-c", os.devnull,
+				"-w", os.devnull,
+				self.device])
+		proc.wait()
+		output = proc.stdout.read().strip()
+		if proc.returncode != 0:
+			self.log.warn("retrieving of partition type via 'blkid' failed: %s" % (proc.stderr.read().strip(), ))
+			return None
+		devnull.close()
+		return output
+
+
+	def __isLuksPartition(self):
+		"check if the given device is a luks partition"
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = None,
+			stdout = devnull,
+			stderr = devnull,
+			args = [
+				self.cbox.prefs["Programs"]["cryptsetup"],
+				"--batch-mode",
+				"isLuks",
+				self.device])
+		proc.wait()
+		devnull.close()
+		return proc.returncode == 0
+
+
+	def __getMountPoint(self):
+		"return the name of the mountpoint of this volume"
+		return os.path.join(self.cbox.prefs["Locations"]["MountParentDir"], self.name)
+
+
+	def __mountLuks(self, password):
+		"mount a luks partition"
+		if not password:
+			raise CBInvalidPassword("no password supplied for luksOpen")
+		if self.isMounted(): raise CBVolumeIsActive("this container is already active")
+		self.__umountLuks()
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		self.__cleanMountDirs()
+		if not os.path.exists(self.__getMountPoint()):
+			os.mkdir(self.__getMountPoint())
+		if not os.path.exists(self.__getMountPoint()):
+			errorMsg = "Could not create mountpoint (%s)" % (self.__getMountPoint(), )
+			self.log.error(errorMsg)
+			raise CBMountError(errorMsg)
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = subprocess.PIPE,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["super"],
+				self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+				"cryptsetup",
+				"luksOpen",
+				self.device,
+				self.name,
+				"--batch-mode"])
+		proc.stdin.write(password)
+		(output, errout) = proc.communicate()
+		if proc.returncode != 0:
+			errorMsg = "Could not open the luks mapping: %s" % (errout.strip(), )
+			self.log.warn(errorMsg)
+			raise CBMountError(errorMsg)
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = None,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["super"],
+				self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+				"mount",
+				os.path.join(self.__dmDir, self.name),
+				self.__getMountPoint()])
+		proc.wait()
+		if proc.returncode != 0:
+			errorMsg = "Could not mount the filesystem: %s" % (proc.stderr.read().strip(), )
+			self.log.warn(errorMsg)
+			raise CBMountError(errorMsg)
+		devnull.close()
+
+
+	def __umountLuks(self):
+		"umount a luks partition"
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		if self.isMounted():
+			proc = subprocess.Popen(
+				shell = False,
+				stdin = None,
+				stdout = devnull,
+				stderr = subprocess.PIPE,
+				args = [
+					self.cbox.prefs["Programs"]["super"],
+					self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+					"umount",
+					self.__getMountPoint()])
+			proc.wait()
+			if proc.returncode != 0:
+				errorMsg = "Could not umount the filesystem: %s" % (proc.stderr.read().strip(), )
+				self.log.warn(errorMsg)
+				raise CBUmountError(errorMsg)
+		if os.path.exists(os.path.join(self.__dmDir, self.name)):
+			proc = subprocess.Popen(
+				shell = False,
+				stdin = None,
+				stdout = devnull,
+				stderr = subprocess.PIPE,
+				args = [
+					self.cbox.prefs["Programs"]["super"],
+					self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+					"cryptsetup",
+					"luksClose",
+					self.name,
+					"--batch-mode"])
+			proc.wait()
+			if proc.returncode != 0:
+				errorMsg = "Could not remove the luks mapping: %s" % (proc.stderr.read().strip(), )
+				self.log.warn(errorMsg)
+				raise CBUmountError(errorMsg)
+		devnull.close()
+
+
+	def __mountPlain(self):
+		"mount a plaintext partition"
+		if self.isMounted(): raise CBVolumeIsActive("this container is already active")
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		self.__cleanMountDirs()
+		if not os.path.exists(self.__getMountPoint()):
+			os.mkdir(self.__getMountPoint())
+		if not os.path.exists(self.__getMountPoint()):
+			errorMsg = "Could not create mountpoint (%s)" % (self.__getMountPoint(), )
+			self.log.error(errorMsg)
+			raise CBMountError(errorMsg)
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = None,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["super"],
+				self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+				"mount",
+				self.device,
+				self.__getMountPoint()])
+		proc.wait()
+		if proc.returncode != 0:
+			errorMsg = "Could not mount the filesystem: %s" % (proc.stderr.read().strip(), )
+			self.log.warn(errorMsg)
+			raise CBMountError(errorMsg)
+		devnull.close()
+
+
+	def __umountPlain(self):
+		"umount a plaintext partition"
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		if self.isMounted():
+			proc = subprocess.Popen(
+				shell = False,
+				stdin = None,
+				stdout = devnull,
+				stderr = subprocess.PIPE,
+				args = [
+					self.cbox.prefs["Programs"]["super"],
+					self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+					"umount",
+					self.__getMountPoint()])
+			proc.wait()
+			if proc.returncode != 0:
+				errorMsg = "Could not umount the filesystem: %s" % (proc.stderr.read().strip(), )
+				self.log.warn(errorMsg)
+				raise CBUmountError(errorMsg)
+		devnull.close()
+	
+
+	def __createPlain(self):
+		"make a plaintext partition"
+		if self.isMounted():
+			raise CBVolumeIsActive("deactivate the partition before filesystem initialization")
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = None,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["mkfs-data"],
+				self.device])
+		proc.wait()
+		if proc.returncode != 0:
+			errorMsg = "Could not create the filesystem: %s" % (proc.stderr.read().strip(), )
+			self.log.error(errorMsg)
+			raise CBCreateError(errorMsg)
+		devnull.close()
+
+
+	def __createLuks(self, password):
+		"make a luks partition"
+		if not password:
+			raise CBInvalidPassword("no password supplied for new luks mapping")
+		if self.isMounted():
+			raise CBVolumeIsActive("deactivate the partition before filesystem initialization")
+		devnull = None
+		try:
+			devnull = open(os.devnull, "w")
+		except IOError:
+			self.log.warn("Could not open %s" % (os.devnull, ))
+		"remove any potential open luks mapping"
+		self.__umountLuks()
+		"create the luks header"
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = subprocess.PIPE,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["super"],
+				self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+				"cryptsetup",
+				"luksFormat",
+				self.device,
+				"--batch-mode",
+				"--cipher", self.cbox.prefs["Main"]["DefaultCipher"],
+				"--iter-time", "2000"])
+		proc.stdin.write(password)
+		(output, errout) = proc.communicate()
+		if proc.returncode != 0:
+			errorMsg = "Could not create the luks header: %s" % (errout.strip(), )
+			self.log.error(errorMsg)
+			raise CBCreateError(errorMsg)
+		"open the luks container for mkfs"
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = subprocess.PIPE,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["super"],
+				self.cbox.prefs["Programs"]["CryptoBoxRootActions"],
+				"cryptsetup",
+				"luksOpen",
+				self.device,
+				self.name,
+				"--batch-mode"])
+		proc.stdin.write(password)
+		(output, errout) = proc.communicate()
+		if proc.returncode != 0:
+			errorMsg = "Could not open the new luks mapping: %s" % (errout.strip(), )
+			self.log.error(errorMsg)
+			raise CBCreateError(errorMsg)
+		"make the filesystem"
+		proc = subprocess.Popen(
+			shell = False,
+			stdin = None,
+			stdout = devnull,
+			stderr = subprocess.PIPE,
+			args = [
+				self.cbox.prefs["Programs"]["mkfs-data"],
+				os.path.join(self.__dmDir, self.name)])
+		proc.wait()
+		"remove the mapping - for every exit status"
+		self.__umountLuks()
+		if proc.returncode != 0:
+			errorMsg = "Could not create the filesystem: %s" % (proc.stderr.read().strip(), )
+			self.log.error(errorMsg)
+			"remove the luks mapping"
+			raise CBCreateError(errorMsg)
+		devnull.close()
+
+
+	def __cleanMountDirs(self):
+		"""	remove all unnecessary subdirs of the mount parent directory
+			this should be called for every (u)mount	"""
+		subdirs = os.listdir(self.cbox.prefs["Locations"]["MountParentDir"])
+		for dir in subdirs:
+			abs_dir = os.path.join(self.cbox.prefs["Locations"]["MountParentDir"], dir)
+			if (not os.path.islink(abs_dir)) and os.path.isdir(abs_dir) and (not os.path.ismount(abs_dir)):
+				os.rmdir(abs_dir)
+
+

bin/CryptoBoxExceptions.py

@@ -0,0 +1,107 @@
+"""
+exceptions of the cryptobox package
+"""
+
+
+class CryptoBoxError(Exception):
+	"""base class for exceptions of the cryptobox"""
+	pass
+
+
+class CBConfigError(CryptoBoxError):
+	"""any kind of error related to the configuration of a cryptobox"""
+	pass
+
+
+class CBConfigUnavailableError(CBConfigError):
+	"""config file/input was not available at all"""
+	
+	def __init__(self, source=None):
+		self.source = source
+	
+	def __str__(self):
+		if self.source:
+			return "failed to access the configuration of the cryptobox: %s" % self.source
+		else:
+			return "failed to access the configuration of the cryptobox"
+
+
+class CBConfigUndefinedError(CBConfigError):
+	"""a specific configuration setting was not defined"""
+
+	def __init__(self, section, name=None):
+		self.section = section
+		self.name = name
+	
+	def __str__(self):
+		# is it a settings or a section?
+		if self.name:
+			# setting
+			return "undefined configuration setting: [%s]->%s - please check your configuration file" % (self.section, self.name)
+		else:
+			# section
+			return "undefined configuration section: [%s] - please check your configuration file" % (self.section, )
+			
+
+
+class CBConfigInvalidValueError(CBConfigError):
+	"""a configuration setting was invalid somehow"""
+
+	def __init__(self, section, name, value, reason):
+		self.section = section
+		self.name = name
+		self.value = value
+		self.reason = reason
+	
+	def __str__(self):
+		return "invalid configuration setting [%s]->%s (%s): %s" % (self.section, self.name, self.value, self.reason)
+
+
+class CBEnvironmentError(CryptoBoxError):
+	"""some part of the environment of the cryptobox is broken
+	e.g. the wrong version of a required program
+	"""
+
+	def __init__(self, desc):
+		self.desc = desc
+
+	def __str__(self):
+		return "misconfiguration detected: %s" % self.desc
+
+
+class CBContainerError(CryptoBoxError):
+	"""any error raised while manipulating a cryptobox container"""
+	
+	def __init__(self, desc):
+		self.desc = desc
+
+	def __str__(self):
+		return self.desc
+
+class CBCreateError(CBContainerError):
+	pass
+
+class CBVolumeIsActive(CBContainerError):
+	pass
+
+class CBInvalidName(CBContainerError):
+	pass
+
+class CBNameActivelyUsed(CBContainerError):
+	pass
+
+class CBInvalidType(CBContainerError):
+	pass
+
+class CBInvalidPassword(CBContainerError):
+	pass
+
+class CBChangePasswordError(CBContainerError):
+	pass
+
+class CBMountError(CBContainerError):
+	pass
+
+class CBUmountError(CBContainerError):
+	pass
+

bin/CryptoBoxPlugin.py

@@ -0,0 +1,165 @@
+# $Id$
+#
+# parent class for all plugins of the CryptoBox
+#
+
+import os
+import cherrypy
+
+
+class CryptoBoxPlugin:
+
+	## default capability is "system" - the other supported capability is: "volume"
+	pluginCapabilities = [ "system" ]
+
+	## does this plugin require admin authentification?
+	requestAuth = False
+
+	## is this plugin enabled by default?
+	enabled = True
+
+	## default rank (0..100) of the plugin in listings (lower value means higher priority)
+	rank = 80
+
+
+	## default icon of this plugin (relative path)
+	defaultIconFileName = "plugin_icon.png"
+
+
+	def __init__(self, cbox, pluginDir):
+		self.cbox = cbox
+		self.hdf = {}
+		self.pluginDir = pluginDir
+		self.hdf_prefix = "Data.Plugins.%s." % self.getName()
+
+
+	def doAction(self, **args):
+		"""override doAction with your plugin code"""
+		raise Exception, "undefined action handler ('doAction') in plugin '%'" % self.getName()
+	
+
+	def getStatus(self):
+		"""you should override this, to supply useful state information"""
+		raise Exception, "undefined state handler ('getStatus') in plugin '%'" % self.getName()
+	
+
+	def getName(self):
+		"""the name of the python file (module) should be the name of the plugin"""
+		return self.__module__
+	
+
+	@cherrypy.expose
+	def getIcon(self, image=None, **kargs):
+		"""return the image data of the icon of the plugin
+		
+		the parameter 'image' may be used for alternative image locations (relative
+		to the directory of the plugin)
+		'**kargs' is necessary, as a 'weblang' attribute may be specified (and ignored)"""
+		import cherrypy, re
+		if (image is None): # or (re.search(u'[\w-\.]', image)):
+			plugin_icon_file = os.path.join(self.pluginDir, self.defaultIconFileName)
+		else:
+			plugin_icon_file = os.path.join(self.pluginDir, image)
+		if not os.access(plugin_icon_file, os.R_OK):
+			plugin_icon_file = os.path.join(self.cbox.prefs["Locations"]["PluginDir"], "plugin_icon_unknown.png")
+		return cherrypy.lib.cptools.serveFile(plugin_icon_file)
+
+
+	def getTemplateFileName(self, template_name):
+		"""return the filename of the template, if it is part of this plugin
+
+		use this function to check, if the plugin provides the specified template
+		"""
+		result_file = os.path.join(self.pluginDir, template_name + ".cs")
+		if os.access(result_file, os.R_OK) and os.path.isfile(result_file):
+			return result_file
+		else:
+			return None
+
+
+	def getLanguageData(self, lang="en"):
+		try:
+			import neo_cgi, neo_util
+		except:
+			raise CryptoBoxExceptions.CBEnvironmentError("couldn't import 'neo_*'! Try 'apt-get install python-clearsilver'.")
+		langdir = os.path.abspath(os.path.join(self.pluginDir, "lang"))
+		## first: the default language file (english)
+		langFiles = [os.path.join(langdir, "en.hdf")]
+		## maybe we have to load a translation afterwards
+		if lang != "en":
+			langFiles.append(os.path.join(langdir, lang + ".hdf"))
+		file_found = False
+		lang_hdf = neo_util.HDF()
+		for langFile in langFiles:
+			if os.access(langFile, os.R_OK):
+				lang_hdf.readFile(langFile)
+				file_found = True
+		if file_found:
+			return lang_hdf
+		else:
+			self.cbox.log.debug("Couldn't find a valid plugin language file (%s)" % str(langFiles))
+			return None
+
+
+	def loadDataSet(self, hdf):
+		for (key, value) in self.hdf.items():
+			hdf.setValue(key, str(value))
+
+
+	def isAuthRequired(self):
+		"""check if this plugin requires authentication
+		first step: check plugin configuration
+		second step: check default value of plugin"""
+		try:
+			if self.cbox.prefs.pluginConf[self.getName()]["requestAuth"] is None:
+				return self.requestAuth
+			if self.cbox.prefs.pluginConf[self.getName()]["requestAuth"]:
+				return True
+			else:
+				return False
+		except KeyError:
+			return self.requestAuth
+
+
+	def isEnabled(self):
+		"""check if this plugin is enabled
+		first step: check plugin configuration
+		second step: check default value of plugin"""
+		import types
+		try:
+			if self.cbox.prefs.pluginConf[self.getName()]["enabled"] is None:
+				return self.enabled
+			if self.cbox.prefs.pluginConf[self.getName()]["enabled"]:
+				return True
+			else:
+				return False
+		except KeyError:
+			return self.enabled
+
+
+	def getRank(self):
+		"""check the rank of this plugin
+		first step: check plugin configuration
+		second step: check default value of plugin"""
+		try:
+			if self.cbox.prefs.pluginConf[self.getName()]["rank"] is None:
+				return self.rank
+			return int(self.cbox.prefs.pluginConf[self.getName()]["rank"])
+		except KeyError, TypeError:
+			return self.rank
+
+
+	def getTestClass(self):
+		import imp
+		pl_file = os.path.join(self.pluginDir, "unittests.py")
+		if os.access(pl_file, os.R_OK) and os.path.isfile(pl_file):
+			try:
+				return getattr(imp.load_source("unittests_%s" % self.getName(), pl_file), "unittests")
+			except AttributeError:
+				pass
+		try:
+			self.cbox.log.info("could not load unittests for plugin: %s" % self.getName())
+		except AttributeError:
+			pass
+		return None
+

bin/CryptoBoxRootActions.py

@@ -0,0 +1,386 @@
+#!/usr/bin/env python2.4
+
+"""module for executing the programs, that need root privileges
+
+Syntax:
+	- program
+	- device
+	- [action]
+	- [action args]
+
+this script will always return with an exitcode 0 (true), if "check" is the only argument
+"""
+
+import os
+import sys
+import subprocess
+import pwd
+import grp
+import types
+
+allowedProgs = {
+	"sfdisk":	"/sbin/sfdisk",
+	"cryptsetup":	"/sbin/cryptsetup",
+	"mount":	"/bin/mount",
+	"umount":	"/bin/umount",
+	"blkid":	"/sbin/blkid",
+	}
+
+
+DEV_TYPES = { "pipe":1, "char":2, "dir":4, "block":6, "file":8, "link":10, "socket":12}
+
+
+def checkIfPluginIsSafe(plugin):
+	"""check if the plugin and its parents are only writeable for root"""
+	#FIXME: for now we may skip this test - but users will not like it this way :)
+	return True
+	props = os.stat(plugin)
+	## check if it is owned by non-root
+	if props.st_uid != 0: return False
+	## check group-write permission if gid is not zero
+	if (props.st_gid != 0) and (props.st_mode % 32 / 16 > 0): return False
+	## check if it is world-writeable
+	if props.st_mode % 4 / 2 > 0: return False
+	## are we at root-level (directory-wise)? If yes, then we are ok ...
+	if plugin == os.path.sep: return True
+	## check if the parent directory is ok - recursively :)
+	return checkIfPluginIsSafe(os.path.dirname(os.path.abspath(plugin)))
+
+
+def	checkIfPluginIsValid(plugin):
+	import imp
+	try:
+		x = imp.load_source("cbox_plugin",plugin)
+	except Exception:
+		return False
+	try:
+		if getattr(x, "PLUGIN_TYPE") == "cryptobox":
+			return True
+		else:
+			return False
+	except Exception:
+		return False
+
+
+def call_plugin(args):
+	"""check if the plugin may be called - and do it finally ..."""
+	plugin = os.path.abspath(args[0])
+	del args[0]
+	## check existence and excutability
+	if not os.access(plugin, os.X_OK):
+		raise Exception, "could not find executable plugin (%s)" % plugin
+	## check if the plugin (and its parents) are only writeable for root
+	if not checkIfPluginIsSafe(plugin):
+		raise Exception, "the plugin (%s) was not safe - check its (and its parents') permissions" % plugin
+	## check if the plugin is a python program, that is marked as a cryptobox plugin
+	if not checkIfPluginIsValid(plugin):
+		raise Exception, "the plugin (%s) is not a correctly marked python script" % plugin
+	args.insert(0,plugin)
+	proc = subprocess.Popen(
+		shell = False,
+		args = args)
+	proc.wait()
+	return proc.returncode == 0
+
+
+def isWriteable(device, force_dev_type=None):
+	"""check if the calling user (not root!) has write access to the device/file
+
+	the real (not the effictive) user id is used for the check
+	additionally the permissions of the default groups of the real uid are checked
+	this check works nicely together with "super", as it changes (by default) only
+	the effective uid (not the real uid)
+	"""
+	# first check, if the device/file exists
+	if not os.path.exists(device):
+		return False
+	# check the type of the device - if necessary
+	if not force_dev_type is None:
+		dev_type = os.stat(device).st_mode % 65536 / 4096
+		if dev_type != force_dev_type: return False
+	# retrieve the information for the real user id
+	(trustUserName, trustUID, groupsOfTrustUser) = getUserInfo(os.getuid())
+	# set the default groups of the caller for the check (restore them later)
+	savedGroups = os.getgroups()
+	os.setgroups(groupsOfTrustUser)
+	# check permissions
+	result = os.access(device, os.W_OK) and os.access(device, os.R_OK)
+	# reset the groups of this process
+	os.setgroups(savedGroups)
+	return result
+
+
+def run_cryptsetup(args):
+	"""execute cryptsetup as root
+
+	@args: list of arguments - they will be treated accordingly to the first element
+		of this list (the action)"""
+	if not args: raise "WrongArguments", "no action for cryptsetup supplied"
+	if type(args) != types.ListType: raise "WrongArguments", "invalid arguments supplied: %s" % (args, )
+	try:
+		action = args[0]
+		del args[0]
+		device = None
+		cmd_args = []
+		if action == "luksFormat":
+			device = args[0]; del args[0]
+			cmd_args.append(action)
+			cmd_args.append(device)
+		elif action == "luksUUID":
+			device = args[0]; del args[0]
+			cmd_args.append(action)
+			cmd_args.append(device)
+		elif action == "luksOpen":
+			if len(args) < 2: raise "WrongArguments", "missing arguments"
+			device = args[0]; del args[0]
+			destination = args[0]; del args[0]
+			cmd_args.append(action)
+			cmd_args.append(device)
+			cmd_args.append(destination)
+		elif action == "luksClose":
+			if len(args) < 1: raise "WrongArguments", "missing arguments"
+			destination = args[0]; del args[0]
+			# maybe add a check for the mapped device's permissions?
+			# dmsetup deps self.device
+			cmd_args.append(action)
+			cmd_args.append(destination)
+		elif action == "luksAddKey":
+			device = args[0]; del args[0]
+			cmd_args.append(action)
+			cmd_args.append(device)
+		elif action == "luksDelKey":
+			if len(cs_args) < 2: raise "WrongArguments", "missing arguments"
+			device = args[0]; del args[0]
+			cmd_args.insert(-1, action)
+			cmd_args.insert(-1, device)
+		elif action == "isLuks":
+			device = args[0]; del args[0]
+			cmd_args.append(action)
+			cmd_args.append(device)
+		else: raise "WrongArguments", "invalid action supplied: %s" % (action, )
+		# check if a device was defined - and check it
+		if (not device is None) and (not isWriteable(device, DEV_TYPES["block"])):
+			raise "WrongArguments", "%s is not a writeable block device" % (device, )
+		cs_args = [allowedProgs["cryptsetup"]]
+		cs_args.extend(args)
+		cs_args.extend(cmd_args)
+	except (TypeError, IndexError):
+		raise "WrongArguments", "invalid arguments supplied: %s" % (args, )
+	# execute cryptsetup with the given parameters
+	proc = subprocess.Popen(
+		shell = False,
+		args = cs_args)
+	proc.wait()
+	## chown the devmapper block device to the cryptobox user
+	if (proc.returncode == 0) and (action == "luksOpen"):
+		os.chown(os.path.join(os.path.sep, "dev", "mapper", destination), os.getuid(), os.getgid())
+	return proc.returncode == 0
+
+
+def run_sfdisk(args):
+	"""execute sfdisk for partitioning
+
+	not implemented yet"""
+	print "ok - you are free to call sfdisk ..."
+	print "  not yet implemented ..."
+	return True
+
+
+def getFSType(device):
+	"""get the filesystem type of a device"""
+	proc = subprocess.Popen(
+		shell = False,
+		stdout	= subprocess.PIPE,
+		args = [ allowedProgs["blkid"],
+			"-s", "TYPE",
+			"-o", "value",
+			"-c", os.devnull,
+			"-w", os.devnull,
+			device])
+	(stdout, stderr) = proc.communicate()
+	if proc.returncode != 0:
+		return None
+	return stdout.strip()
+
+
+def run_mount(args):
+	"""execute mount
+	"""
+	if not args: raise "WrongArguments", "no destination for mount supplied"
+	if type(args) != types.ListType: raise "WrongArguments", "invalid arguments supplied: %s" % (args, )
+	try:
+		device = args[0]
+		del args[0]
+		destination = args[0]
+		del args[0]
+		# check permissions for the device
+		if not isWriteable(device, DEV_TYPES["block"]):
+			raise "WrongArguments", "%s is not a writeable block device" % (device, )
+		## check permissions for the mountpoint
+		if not isWriteable(destination, DEV_TYPES["dir"]):
+			raise "WrongArguments", "the mountpoint (%s) is not writeable" % (destination, )
+		# check for additional (not allowed) arguments
+		if len(args) != 0:
+			raise "WrongArguments", "too many arguments for 'mount': %s" % (args, )
+	except TypeError:
+		raise "WrongArguments", "invalid arguments supplied: %s" % (args, )
+	# execute mount with the given parameters
+	# first overwrite the real uid, as 'mount' wants this to be zero (root)
+	savedUID = os.getuid()
+	os.setuid(os.geteuid())
+	## we have to change the permissions of the mounted directory - otherwise it will
+	## not be writeable for the cryptobox user
+	## for 'vfat' we have to do this during mount
+	## for ext2/3 we have to do it afterward
+	## first: get the user/group of the target
+	(trustUserName, trustUID, groupsOfTrustUser) = getUserInfo(savedUID)
+	trustGID = groupsOfTrustUser[0]
+	fsType = getFSType(device)
+	## define arguments
+	if fsType == "vfat":
+		## add the "uid/gid" arguments to the mount call
+		mount_args = [allowedProgs["mount"],
+			"-o", "uid=%d,gid=%d" % (trustUID, trustGID),
+			device,
+			destination]
+	else:
+		## all other filesystem types will be handled after mount
+		mount_args = [allowedProgs["mount"], device, destination]
+	# execute mount
+	proc = subprocess.Popen(
+		shell = False,
+		args = mount_args)
+	proc.wait()
+	## return in case of an error
+	if proc.returncode != 0:
+		return False
+	## for vfat: we are done
+	if fsType == "vfat": return True
+	## for all other filesystem types: chown the mount directory
+	try:
+		os.chown(destination, trustUID, groupsOfTrustUser[0])
+	except OSError, errMsg:
+		sys.stderr.write("could not chown the mount destination (%s) to the specified user (%d/%d): %s\n" % (destination, trustUID, groupsOfTrustUser[0], errMsg))
+		sys.stderr.write("UID: %d\n" % (os.geteuid(),))
+		return False
+	## BEWARE: it would be nice, if we could restore the previous uid (not euid) but
+	## this would also override the euid (see 'man 2 setuid') - any ideas?
+	return True
+
+
+def run_umount(args):
+	"""execute mount
+	"""
+	if not args: raise "WrongArguments", "no mountpoint for umount supplied"
+	if type(args) != types.ListType: raise "WrongArguments", "invalid arguments supplied"
+	try:
+		destination = args[0]
+		del args[0]
+		# check permissions for the destination
+		if not isWriteable(os.path.dirname(destination), DEV_TYPES["dir"]):
+			raise "WrongArguments", "the parent of the mountpoint (%s) is not writeable" % (destination, )
+		if len(args) != 0: raise "WrongArguments", "umount does not allow arguments"
+	except TypeError:
+		raise "WrongArguments", "invalid arguments supplied"
+	# execute umount with the given parameters
+	# first overwrite the real uid, as 'umount' wants this to be zero (root)
+	savedUID = os.getuid()
+	os.setuid(os.geteuid())
+	# execute umount (with the parameter '-l' - lazy umount)
+	proc = subprocess.Popen(
+		shell = False,
+		args = [allowedProgs["umount"], "-l", destination])
+	proc.wait()
+	# restore previous real uid
+	os.setuid(savedUID)
+	return proc.returncode == 0
+
+
+def getUserInfo(user):
+	"""return information about the specified user
+
+	@user:		(uid or name)
+	@return:	tuple of (name, uid, (groups))
+	"""
+	if user is None: raise "KeyError", "no user supplied"
+	# first check, if 'user' contains an id - then check for a name
+	try:
+		userinfo = pwd.getpwuid(user)
+	except TypeError:
+		# if a KeyError is raised again, then the supplied user was invalid
+		userinfo = pwd.getpwnam(user)
+	u_groups =[one_group.gr_gid
+		for one_group in grp.getgrall()
+		if userinfo.pw_name in one_group.gr_mem]
+	if not userinfo.pw_gid in u_groups: u_groups.append(userinfo.pw_gid)
+	return (userinfo.pw_name, userinfo.pw_uid, u_groups)
+
+
+# **************** main **********************
+
+# prevent import
+if __name__ == "__main__":
+
+	# do we have root privileges (effective uid is zero)?
+	if os.geteuid() != 0:
+		sys.stderr.write("the effective uid is not zero - you should use 'super' to call this script (%s)" % sys.argv[0])
+		sys.exit(100)
+
+	# remove program name
+	args = sys.argv[1:]
+
+	# do not allow to use root permissions (real uid may not be zero)
+	if os.getuid() == 0:
+		sys.stderr.write("the uid of the caller is zero (root) - this is not allowed\n")
+		sys.exit(100)
+	
+	# check if there were arguments
+	if (len(args) == 0):
+		sys.stderr.write("No arguments supplied\n")
+		sys.exit(100)
+
+	# did the user call the "check" action?
+	if (len(args) == 1) and (args[0].lower() == "check"):
+		# exit silently
+		sys.exit(0)
+	
+	if args[0].lower() == "plugin":
+		del args[0]
+		try:
+			isOK = call_plugin(args)
+		except Exception, errMsg:
+			sys.stderr.write("Execution of plugin failed: %s\n" % errMsg)
+			sys.exit(100)
+		if isOK:
+			sys.exit(0)
+		else:
+			sys.exit(1)
+
+	# check parameters count
+	if len(args) < 2:
+		sys.stderr.write("Not enough arguments supplied (%s)!\n" % " ".join(args))
+		sys.exit(100)
+
+	progRequest = args[0]
+	del args[0]
+
+	if not progRequest in allowedProgs.keys():
+		sys.stderr.write("Invalid program requested: %s\n" % progRequest)
+		sys.exit(100)
+
+	if progRequest == "cryptsetup":	runner = run_cryptsetup
+	elif progRequest == "sfdisk":	runner = run_sfdisk
+	elif progRequest == "mount":	runner = run_mount
+	elif progRequest == "umount":	runner = run_umount
+	else:
+		sys.stderr.write("The interface for this program (%s) is not yet implemented!\n" % progRequest)
+		sys.exit(100)
+	try:
+		if runner(args):
+			sys.exit(0)
+		else:
+			sys.exit(1)
+	except "WrongArguments", errstr:
+		sys.stderr.write("Execution failed: %s\n" % errstr)
+		sys.exit(100)
+

bin/CryptoBoxSettings.py

@@ -0,0 +1,481 @@
+import logging
+try:
+	import validate
+except:
+	raise CryptoBoxExceptions.CBEnvironmentError("couldn't import 'validate'! Try 'apt-get install python-formencode'.")
+import os
+import CryptoBoxExceptions
+import subprocess
+try:
+	import configobj	## needed for reading and writing of the config file
+except:
+	raise CryptoBoxExceptions.CBEnvironmentError("couldn't import 'configobj'! Try 'apt-get install python-configobj'.")
+
+
+
+class CryptoBoxSettings:
+
+	CONF_LOCATIONS = [
+		"./cryptobox.conf",
+		"~/.cryptobox.conf",
+		"/etc/cryptobox/cryptobox.conf"]
+	
+	NAMEDB_FILE = "cryptobox_names.db"
+	PLUGINCONF_FILE = "cryptobox_plugins.conf"
+	USERDB_FILE = "cryptobox_users.db"
+
+
+	def __init__(self, config_file=None):
+		self.log = logging.getLogger("CryptoBox")
+		config_file = self.__getConfigFileName(config_file)
+		self.log.info("loading config file: %s" % config_file)
+		self.prefs = self.__getPreferences(config_file)
+		self.__validateConfig()
+		self.__configureLogHandler()
+		self.__checkUnknownPreferences()
+		self.preparePartition()
+		self.nameDB = self.__getNameDatabase()
+		self.pluginConf = self.__getPluginConfig()
+		self.userDB = self.__getUserDB()
+		self.misc_files = self.__getMiscFiles()
+	
+
+	def write(self):
+		"""
+		write all local setting files including the content of the "misc" subdirectory
+		"""
+		ok = True
+		try:
+			self.nameDB.write()
+		except IOError:
+			self.log.warn("could not save the name database")
+			ok = False
+		try:
+			self.pluginConf.write()
+		except IOError:
+			self.log.warn("could not save the plugin configuration")
+			ok = False
+		try:
+			self.userDB.write()
+		except IOError:
+			self.log.warn("could not save the user database")
+			ok = False
+		for misc_file in self.misc_files:
+			if not misc_file.save():
+				self.log.warn("could not save a misc setting file (%s)" % misc_file.filename)
+				ok = False
+		return ok
+
+
+	def requiresPartition(self):
+		return bool(self.prefs["Main"]["UseConfigPartition"])
+	
+
+	def getActivePartition(self):
+		settings_dir = self.prefs["Locations"]["SettingsDir"]
+		if not os.path.ismount(settings_dir): return None
+		for line in file("/proc/mounts"):
+			fields = line.split(" ")
+			mount_dir = fields[1]
+			try:
+				if os.path.samefile(mount_dir, settings_dir): return fields[0]
+			except OSError:
+				pass
+		## no matching entry found
+		return None
+
+
+	def mountPartition(self):
+		self.log.debug("trying to mount configuration partition")
+		if not self.requiresPartition():
+			self.log.warn("mountConfigPartition: configuration partition is not required - mounting anyway")
+		if self.getActivePartition():
+			self.log.warn("mountConfigPartition: configuration partition already mounted - not mounting again")
+			return False
+		confPartitions = self.getAvailablePartitions()
+		if not confPartitions:
+			self.log.error("no configuration partitions found - you have to create it first")
+			return False
+		partition = confPartitions[0]
+		proc = subprocess.Popen(
+			shell = False,
+			stdout = subprocess.PIPE,
+			stderr = subprocess.PIPE,
+			args = [
+				self.prefs["Programs"]["super"],
+				self.prefs["Programs"]["CryptoBoxRootActions"],
+				"mount",
+				partition,
+				self.prefs["Locations"]["SettingsDir"]])
+		(stdout, stderr) = proc.communicate()
+		if proc.returncode != 0:
+			self.log.error("failed to mount the configuration partition: %s" % partition)
+			self.log.error("output of mount: %s" % (stderr,))
+			return False
+		self.log.info("configuration partition mounted: %s" % partition)
+		return True
+
+
+	def umountPartition(self):
+		if not self.getActivePartition():
+			self.log.warn("umountConfigPartition: no configuration partition mounted")
+			return False
+		proc = subprocess.Popen(
+			shell = False,
+			stdout = subprocess.PIPE,
+			stderr = subprocess.PIPE,
+			args = [
+				self.prefs["Programs"]["super"],
+				self.prefs["Programs"]["CryptoBoxRootActions"],
+				"umount",
+				self.prefs["Locations"]["SettingsDir"]])
+		(stdout, stderr) = proc.communicate()
+		if proc.returncode != 0:
+			self.log.error("failed to unmount the configuration partition")
+			self.log.error("output of mount: %s" % (stderr,))
+			return False
+		self.log.info("configuration partition unmounted")
+		return True
+		
+
+	def getAvailablePartitions(self):
+		"""returns a sequence of found config partitions"""
+		proc = subprocess.Popen(
+			shell = False,
+			stdout = subprocess.PIPE,
+			args = [
+				self.prefs["Programs"]["blkid"],
+				"-c", os.path.devnull,
+				"-t", "LABEL=%s" % self.prefs["Main"]["ConfigVolumeLabel"] ])
+		(output, error) = proc.communicate()
+		if output:
+			return [e.strip().split(":",1)[0] for e in output.splitlines()]
+		else:
+			return []
+
+	
+	def preparePartition(self):
+		if self.requiresPartition() and not self.getActivePartition():
+			self.mountPartition()
+
+
+	def __getitem__(self, key):
+		"""redirect all requests to the 'prefs' attribute"""
+		return self.prefs[key]
+
+
+	def __getPreferences(self, config_file):
+		import StringIO
+		config_rules = StringIO.StringIO(self.validation_spec)
+		try:
+			prefs = configobj.ConfigObj(config_file, configspec=config_rules)
+			if prefs:
+				self.log.info("found config: %s" % prefs.items())
+			else: 
+				raise CryptoBoxExceptions.CBConfigUnavailableError("failed to load the config file: %s" % config_file)
+		except IOError:
+			raise CryptoBoxExceptions.CBConfigUnavailableError("unable to open the config file: %s" % config_file)
+		return prefs
+
+
+	def __validateConfig(self):
+		result = self.prefs.validate(CryptoBoxSettingsValidator(), preserve_errors=True)
+		error_list = configobj.flatten_errors(self.prefs, result)
+		if not error_list: return
+		errorMsgs = []
+		for sections, key, text in error_list:
+			section_name = "->".join(sections)
+			if not text:
+				errorMsg = "undefined configuration value (%s) in section '%s'" % (key, section_name)
+			else:
+				errorMsg = "invalid configuration value (%s) in section '%s': %s" % (key, section_name, text)
+			errorMsgs.append(errorMsg)
+		raise CryptoBoxExceptions.CBConfigError, "\n".join(errorMsgs)
+
+
+	def __checkUnknownPreferences(self):
+		import StringIO
+		config_rules = configobj.ConfigObj(StringIO.StringIO(self.validation_spec), list_values=False)
+		self.__recursiveConfigSectionCheck("", self.prefs, config_rules)
+		
+	
+	def __recursiveConfigSectionCheck(self, section_path, section_config, section_rules):
+		"""should be called by '__checkUnknownPreferences' for every section
+		sends a warning message to the logger for every undefined (see validation_spec)
+		configuration setting
+		"""
+		for e in section_config.keys():
+			element_path = section_path + e
+			if e in section_rules.keys():
+				if isinstance(section_config[e], configobj.Section):
+					if isinstance(section_rules[e], configobj.Section):
+						self.__recursiveConfigSectionCheck(element_path + "->", section_config[e], section_rules[e])
+					else:
+						self.log.warn("configuration setting should be a value instead of a section name: %s" % element_path)
+				else:
+					if not isinstance(section_rules[e], configobj.Section):
+						pass	# good - the setting is valid
+					else:
+						self.log.warn("configuration setting should be a section name instead of a value: %s" % element_path)
+			else:
+				self.log.warn("unknown configuration setting: %s" % element_path)
+
+
+	def __getNameDatabase(self):
+		try:
+			try:
+				nameDB_file = os.path.join(self.prefs["Locations"]["SettingsDir"], self.NAMEDB_FILE)
+			except KeyError:
+				raise CryptoBoxExceptions.CBConfigUndefinedError("Locations", "SettingsDir")
+		except SyntaxError:
+			raise CryptoBoxExceptions.CBConfigInvalidValueError("Locations", "SettingsDir", nameDB_file, "failed to interprete the filename of the name database correctly (%s)" % nameDB_file)
+		## create nameDB if necessary
+		if os.path.exists(nameDB_file):
+			nameDB = configobj.ConfigObj(nameDB_file)
+		else:
+			nameDB = configobj.ConfigObj(nameDB_file, create_empty=True)
+		## check if nameDB file was created successfully?
+		if not os.path.exists(nameDB_file):
+			raise CryptoBoxExceptions.CBEnvironmentError("failed to create name database (%s)" % nameDB_file)
+		return nameDB
+
+
+	def __getPluginConfig(self):
+		import StringIO
+		plugin_rules = StringIO.StringIO(self.pluginValidationSpec)
+		try:
+			try:
+				pluginConf_file = os.path.join(self.prefs["Locations"]["SettingsDir"], self.PLUGINCONF_FILE)
+			except KeyError:
+				raise CryptoBoxExceptions.CBConfigUndefinedError("Locations", "SettingsDir")
+		except SyntaxError:
+			raise CryptoBoxExceptions.CBConfigInvalidValueError("Locations", "SettingsDir", pluginConf_file, "failed to interprete the filename of the plugin config file correctly (%s)" % pluginConf_file)
+		## create pluginConf_file if necessary
+		if os.path.exists(pluginConf_file):
+			pluginConf = configobj.ConfigObj(pluginConf_file, configspec=plugin_rules)
+		else:
+			pluginConf = configobj.ConfigObj(pluginConf_file, configspec=plugin_rules, create_empty=True)
+		## validate and convert values according to the spec
+		pluginConf.validate(validate.Validator())
+		## check if pluginConf_file file was created successfully?
+		if not os.path.exists(pluginConf_file):
+			raise CryptoBoxExceptions.CBEnvironmentError("failed to create plugin configuration file (%s)" % pluginConf_file)
+		return pluginConf
+
+
+	def __getUserDB(self):
+		import StringIO, sha
+		userDB_rules = StringIO.StringIO(self.userDatabaseSpec)
+		try:
+			try:
+				userDB_file = os.path.join(self.prefs["Locations"]["SettingsDir"], self.USERDB_FILE)
+			except KeyError:
+				raise CryptoBoxExceptions.CBConfigUndefinedError("Locations", "SettingsDir")
+		except SyntaxError:
+			raise CryptoBoxExceptions.CBConfigInvalidValueError("Locations", "SettingsDir", userDB_file, "failed to interprete the filename of the users database file correctly (%s)" % userDB_file)
+		## create userDB_file if necessary
+		if os.path.exists(userDB_file):
+			userDB = configobj.ConfigObj(userDB_file, configspec=userDB_rules)
+		else:
+			userDB = configobj.ConfigObj(userDB_file, configspec=userDB_rules, create_empty=True)
+		## validate and set default value for "admin" user
+		userDB.validate(validate.Validator())
+		## check if userDB file was created successfully?
+		if not os.path.exists(userDB_file):
+			raise CryptoBoxExceptions.CBEnvironmentError("failed to create user database file (%s)" % userDB_file)
+		## define password hash function - never use "sha" directly - SPOT
+		userDB.getDigest = lambda password: sha.new(password).hexdigest()
+		return userDB
+
+
+	def __getMiscFiles(self):
+		misc_dir = os.path.join(self.prefs["Locations"]["SettingsDir"], "misc")
+		if (not os.path.isdir(misc_dir)) or (not os.access(misc_dir, os.X_OK)):
+			return []
+		return [MiscConfigFile(os.path.join(misc_dir, f), self.log)
+			for f in os.listdir(misc_dir)
+			if os.path.isfile(os.path.join(misc_dir, f))]
+
+
+	def __getConfigFileName(self, config_file):
+		# search for the configuration file
+		import types
+		if config_file is None:
+			# no config file was specified - we will look for it in the ususal locations
+			conf_file_list = [os.path.expanduser(f)
+				for f in self.CONF_LOCATIONS
+				if os.path.exists(os.path.expanduser(f))]
+			if not conf_file_list:
+				# no possible config file found in the usual locations
+				raise CryptoBoxExceptions.CBConfigUnavailableError()
+			config_file = conf_file_list[0]
+		else:
+			# a config file was specified (e.g. via command line)
+			if type(config_file) != types.StringType:
+				raise CryptoBoxExceptions.CBConfigUnavailableError("invalid config file specified: %s" % config_file)
+			if not os.path.exists(config_file):
+				raise CryptoBoxExceptions.CBConfigUnavailableError("could not find the specified configuration file (%s)" % config_file)
+		return config_file
+
+
+	def __configureLogHandler(self):
+		try:
+			log_level = self.prefs["Log"]["Level"].upper()
+			log_level_avail = ["DEBUG", "INFO", "WARN", "ERROR"]
+			if not log_level in log_level_avail:
+				raise TypeError
+		except KeyError:
+			raise CryptoBoxExceptions.CBConfigUndefinedError("Log", "Level")
+		except TypeError:
+			raise CryptoBoxExceptions.CBConfigInvalidValueError("Log", "Level", log_level, "invalid log level: only %s are allowed" % log_level_avail)
+		try:
+			try:
+				log_handler = logging.FileHandler(self.prefs["Log"]["Details"])
+			except KeyError:
+				raise CryptoBoxExceptions.CBConfigUndefinedError("Log", "Details")
+		except IOError:
+			raise CryptoBoxExceptions.CBEnvironmentError("could not create the log file (%s)" % self.prefs["Log"]["Details"])
+		log_handler.setFormatter(logging.Formatter('%(asctime)s CryptoBox %(levelname)s: %(message)s'))
+		cbox_log = logging.getLogger("CryptoBox")
+		## remove previous handlers
+		cbox_log.handlers = []
+		## add new one
+		cbox_log.addHandler(log_handler)
+		## do not call parent's handlers
+		cbox_log.propagate = False
+		## 'log_level' is a string -> use 'getattr'
+		cbox_log.setLevel(getattr(logging,log_level))
+		## the logger named "CryptoBox" is configured now
+
+
+	validation_spec = """
+[Main]
+AllowedDevices = list(min=1)
+DefaultVolumePrefix = string(min=1)
+DefaultCipher = string(default="aes-cbc-essiv:sha256")
+ConfigVolumeLabel = string(min=1, default="cbox_config")
+UseConfigPartition = integer(min=0, max=1, default=0)
+
+[Locations]
+MountParentDir = directoryExists(default="/var/cache/cryptobox/mnt")
+SettingsDir = directoryExists(default="/var/cache/cryptobox/settings")
+TemplateDir = directoryExists(default="/usr/share/cryptobox/template")
+LangDir = directoryExists(default="/usr/share/cryptobox/lang")
+DocDir = directoryExists(default="/usr/share/doc/cryptobox/html")
+PluginDir = directoryExists(default="/usr/share/cryptobox/plugins")
+
+[Log]
+Level = option("debug", "info", "warn", "error", default="warn")
+Destination = option("file", default="file")
+Details = string(min=1)
+
+[WebSettings]
+Stylesheet = string(min=1)
+Language = string(min=1, default="en")
+
+[Programs]
+cryptsetup = fileExecutable(default="/sbin/cryptsetup")
+mkfs-data = fileExecutable(default="/sbin/mkfs.ext3")
+blkid = fileExecutable(default="/sbin/blkid")
+blockdev = fileExecutable(default="/sbin/blockdev")
+mount = fileExecutable(default="/bin/mount")
+umount = fileExecutable(default="/bin/umount")
+super = fileExecutable(default="/usr/bin/super")
+# this is the "program" name as defined in /etc/super.tab
+CryptoBoxRootActions = string(min=1)
+		"""
+
+	pluginValidationSpec = """
+[__many__]
+enabled = boolean(default=None)
+requestAuth = boolean(default=None)
+rank = integer(default=None)
+		"""
+	
+	userDatabaseSpec = """
+[admins]
+admin = string(default=d033e22ae348aeb5660fc2140aec35850c4da997)
+		"""
+
+
+class CryptoBoxSettingsValidator(validate.Validator):
+
+	def __init__(self):
+		validate.Validator.__init__(self)
+		self.functions["directoryExists"] = self.check_directoryExists
+		self.functions["fileExecutable"] = self.check_fileExecutable
+		self.functions["fileWriteable"] = self.check_fileWriteable
+	
+
+	def check_directoryExists(self, value):
+		dir_path = os.path.abspath(value)
+		if not os.path.isdir(dir_path):
+			raise validate.VdtValueError("%s (not found)" % value)
+		if not os.access(dir_path, os.X_OK):
+			raise validate.VdtValueError("%s (access denied)" % value)
+		return dir_path
+	
+
+	def check_fileExecutable(self, value):
+		file_path = os.path.abspath(value)
+		if not os.path.isfile(file_path):
+			raise validate.VdtValueError("%s (not found)" % value)
+		if not os.access(file_path, os.X_OK):
+			raise validate.VdtValueError("%s (access denied)" % value)
+		return file_path
+	
+
+	def check_fileWriteable(self, value):
+		file_path = os.path.abspath(value)
+		if os.path.isfile(file_path):
+			if not os.access(file_path, os.W_OK):
+				raise validate.VdtValueError("%s (not found)" % value)
+		else:
+			parent_dir = os.path.dirname(file_path)
+			if os.path.isdir(parent_dir) and os.access(parent_dir, os.W_OK):
+				return file_path
+			raise validate.VdtValueError("%s (directory does not exist)" % value)
+		return file_path
+
+
+
+class MiscConfigFile:
+
+	maxSize = 20480
+
+	def __init__(self, filename, logger):
+		self.filename = filename
+		self.log = logger
+		self.load()
+
+	
+	def load(self):
+		fd = open(self.filename, "rb")
+		## limit the maximum size
+		self.content = fd.read(self.maxSize)
+		if fd.tell() == self.maxSize:
+			self.log.warn("file in misc settings directory (%s) is bigger than allowed (%s)" % (self.filename, self.maxSize))
+		fd.close()
+
+
+	def save(self):
+		save_dir = os.path.dirname(self.filename)
+		## create the directory, if necessary
+		if not os.path.isdir(save_dir):
+			try:
+				os.mkdir(save_dir)
+			except IOError:
+				return False
+		## save the content of the file
+		try:
+			fd = open(self.filename, "wb")
+		except IOError:
+			return False
+		try:
+			fd.write(self.content)
+			fd.close()
+			return True
+		except IOError:
+			fd.close()
+			return False
+

bin/CryptoBoxTools.py

@@ -0,0 +1,186 @@
+import logging
+import os
+import re
+
+logger = logging.getLogger("CryptoBox")
+
+
+def getAvailablePartitions():
+	"retrieve a list of all available containers"
+	ret_list = []
+	try:
+		"the following reads all lines of /proc/partitions and adds the mentioned devices"
+		fpart = open("/proc/partitions", "r")
+		try:
+			line = fpart.readline()
+			while line:
+				p_details = line.split()
+				if (len(p_details) == 4):
+					"the following code prevents double entries like /dev/hda and /dev/hda1"
+					(p_major, p_minor, p_size, p_device) = p_details
+					## ignore lines with: invalid minor/major or extend partitions (size=1)
+					if  re.search('^[0-9]*$', p_major) and re.search('^[0-9]*$', p_minor) and (p_size != "1"):
+						p_parent = re.sub('[1-9]?[0-9]$', '', p_device)
+						if p_parent == p_device:
+							if [e for e in ret_list if re.search('^' + p_parent + '[1-9]?[0-9]$', e)]:
+								"major partition - its children are already in the list"
+								pass
+							else:
+								"major partition - but there are no children for now"
+								ret_list.append(p_device)
+						else:
+							"minor partition - remove parent if necessary"
+							if p_parent in ret_list: ret_list.remove(p_parent)
+							ret_list.append(p_device)
+				line = fpart.readline()
+		finally:
+			fpart.close()
+		return map(getAbsoluteDeviceName, ret_list)
+	except IOError:
+		logger.warning("Could not read /proc/partitions")
+		return []
+
+
+def getAbsoluteDeviceName(shortname):
+	"""	returns the absolute file name of a device (e.g.: "hda1" -> "/dev/hda1")
+		this does also work for device mapper devices
+		if the result is non-unique, one arbitrary value is returned"""
+	if re.search('^/', shortname): return shortname
+	default = os.path.join("/dev", shortname)
+	if os.path.exists(default): return default
+	result = findMajorMinorOfDevice(shortname)
+	"if no valid major/minor was found -> exit"
+	if not result: return default
+	(major, minor) = result
+	"for device-mapper devices (major == 254) ..."
+	if major == 254:
+		result = findMajorMinorDeviceName("/dev/mapper", major, minor)
+		if result: return result[0]
+	"now check all files in /dev"
+	result = findMajorMinorDeviceName("/dev", major, minor)
+	if result: return result[0]
+	return default
+
+
+def findMajorMinorOfDevice(device):
+	"return the major/minor numbers of a block device"
+	if re.match("/", device) or not os.path.exists(os.path.join(os.path.sep,"sys","block",device)):
+		## maybe it is an absolute device name
+		if not os.path.exists(device): return None
+		## okay - it seems to to a device node
+		rdev = os.stat(device).st_rdev
+		return (os.major(rdev), os.minor(rdev))
+	blockdev_info_file = os.path.join(os.path.join(os.path.sep,"sys","block", device), "dev")
+	try:
+		f_blockdev_info = open(blockdev_info_file, "r")
+		blockdev_info = f_blockdev_info.read()
+		f_blockdev_info.close()
+		(str_major, str_minor) = blockdev_info.split(":")
+		"numeric conversion"
+		try:
+			major = int(str_major)
+			minor = int(str_minor)
+			return (major, minor)
+		except ValueError:
+			"unknown device numbers -> stop guessing"
+			return None
+	except IOError:
+		pass
+		return None
+
+
+def findMajorMinorDeviceName(dir, major, minor):
+	"returns the names of devices with the specified major and minor number"
+	collected = []
+	try:
+		subdirs = [os.path.join(dir, e) for e in os.listdir(dir) if (not os.path.islink(os.path.join(dir, e))) and os.path.isdir(os.path.join(dir, e))]
+		"do a recursive call to parse the directory tree"
+		for dirs in subdirs:
+			collected.extend(findMajorMinorDeviceName(dirs, major, minor))
+		"filter all device inodes in this directory"
+		collected.extend([os.path.realpath(os.path.join(dir, e)) for e in os.listdir(dir) if (os.major(os.stat(os.path.join(dir, e)).st_rdev) == major) and (os.minor(os.stat(os.path.join(dir, e)).st_rdev) == minor)])
+		## remove double entries
+		result = []
+		for e in collected:
+			if e not in result: result.append(e)
+		return result
+	except OSError:
+		return []
+
+
+def getParentBlockDevices():
+	devs = []
+	for line in file("/proc/partitions"):
+		p_details = line.split()
+		## we expect four values - otherwise continue with next iteration
+		if len(p_details) != 4: continue
+		(p_major, p_minor, p_size, p_device) = p_details
+		## we expect numeric values in the first two columns
+		if re.search(u'\D',p_major) or re.search(u'\D',p_minor): continue
+		## now let us check, if it is a (parent) block device or a partition
+		if not os.path.isdir(os.path.join(os.path.sep, "sys", "block", p_device)): continue
+		devs.append(p_device)
+	return map(getAbsoluteDeviceName, devs)
+
+
+def isPartOfBlockDevice(parent, subdevice):
+	"""check if the given block device is a parent of 'subdevice'
+	e.g. for checking if a partition belongs to a block device"""
+	try:
+		(par_major, par_minor) = findMajorMinorOfDevice(parent)
+		(sub_major, sub_minor) = findMajorMinorOfDevice(subdevice)
+	except TypeError:
+		## at least one of these devices did not return a valid major/minor combination
+		return False
+	## search the entry below '/sys/block' belonging to the parent
+	root = os.path.join(os.path.sep, 'sys', 'block')
+	for bldev in os.listdir(root):
+		blpath = os.path.join(root, bldev, 'dev')
+		if os.access(blpath, os.R_OK):
+			try:
+				if (str(par_major), str(par_minor)) == tuple([e for e in file(blpath)][0].strip().split(":",1)):
+					parent_path = os.path.join(root, bldev)
+					break
+			except IndexError, OSError:
+				pass
+	else:
+		## no block device with this major/minor combination found below '/sys/block'
+		return False
+	for subbldev in os.listdir(parent_path):
+		subblpath = os.path.join(parent_path, subbldev, "dev")
+		if os.access(subblpath, os.R_OK):
+			try:
+				if (str(sub_major), str(sub_minor)) == tuple([e for e in file(subblpath)][0].strip().split(":",1)):
+					## the name of the subdevice node is not important - we found it!
+					return True
+			except IndexError, OSError:
+				pass
+	return False
+
+
+def getBlockDeviceSize(device):
+	if not device: return -1
+	try:
+		rdev = os.stat(device).st_rdev
+	except OSError:
+		return -1
+	minor = os.minor(rdev)
+	major = os.major(rdev)
+	for f in file("/proc/partitions"):
+		try:
+			elements = f.split()
+			if len(elements) != 4: continue
+			if (int(elements[0]) == major) and (int(elements[1]) == minor):
+				return int(elements[2])/1024
+		except ValueError:
+			pass
+	return -1
+
+
+def getBlockDeviceSizeHumanly(device):
+	size = getBlockDeviceSize(device)
+	if size > 5120:
+		return "%sGB" % size/1024
+	else:
+		return "%sMB" % size
+

bin/CryptoBoxWebserver.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python2.4
+import os
+import WebInterfaceSites
+import sys
+
+try:
+	import cherrypy
+except: 
+	print "Could not import the cherrypy module! Try 'apt-get install python-cherrypy'."
+	sys.exit(1)
+
+class CryptoBoxWebserver:
+	'''this class starts the cherryp webserver and serves the single sites'''
+
+	def __init__(self):
+		cherrypy.root = WebInterfaceSites.WebInterfaceSites()
+		#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?
+		#
+		# the following manual mapping is necessary, as we may not use relative
+		# paths in the config file
+		cherrypy.config.configMap.update({ 
+			"/cryptobox-misc": { 
+					"staticFilter.on" : True, 
+					"staticFilter.dir": os.path.abspath("../www-data" )}
+			})
+		
+	def start(self):
+		# just use this config, when we're started directly
+		cherrypy.config.update(file = "cryptoboxwebserver.conf")
+		cherrypy.server.start()
+
+if __name__ == "__main__":
+	cbw = CryptoBoxWebserver()
+	cbw.start()
+

bin/Plugins.py

@@ -0,0 +1,67 @@
+# $Id$
+
+import imp
+import os
+import logging
+
+
+class PluginManager:
+	"""manage available plugins"""
+
+	def __init__(self, cbox, plugin_dirs="."):
+		self.cbox = cbox
+		self.log = logging.getLogger("CryptoBox")
+		if hasattr(plugin_dirs, "__iter__"):
+			self.plugin_dirs = [os.path.abspath(dir) for dir in plugin_dirs]
+		else:
+			self.plugin_dirs = [os.path.abspath(plugin_dirs)]
+		self.pluginList = self.__getAllPlugins()
+
+	
+	def getPlugins(self):
+		return self.pluginList[:]
+	
+
+	def getPlugin(self, name):
+		for p in self.pluginList[:]:
+			if p.getName() == name:
+				return p
+		return None
+
+
+	def __getAllPlugins(self):
+		list = []
+		for plfile in self.__getPluginFiles():
+			list.append(self.__getPluginClass(os.path.basename(plfile)[:-3]))
+		return list
+
+
+	def __getPluginClass(self, name):
+		for plfile in self.__getPluginFiles():
+			if name == os.path.basename(plfile)[:-3]:
+				try:
+					pl_class = getattr(imp.load_source(name, plfile), name)
+				except AttributeError:
+					return None
+				return pl_class(self.cbox, os.path.dirname(plfile))
+		else:
+			return None
+	
+
+	def __getPluginFiles(self):
+		result = []
+		for dir in [os.path.abspath(e) for e in self.plugin_dirs if os.access(e, os.R_OK) and os.path.isdir(e)]:
+			for plname in [f for f in os.listdir(dir)]:
+				pldir = os.path.join(dir, plname)
+				plfile = os.path.join(pldir, plname + ".py")
+				if os.path.isfile(plfile) and os.access(plfile, os.R_OK):
+					result.append(plfile)
+		return result
+
+
+if __name__ == "__main__":
+	x = PluginManager(None, "../plugins")
+	for a in x.getPlugins():
+		if not a is None:
+			print "Plugin: %s" % a.getName()
+

bin/WebInterfaceDataset.py

@@ -0,0 +1,136 @@
+import os
+import CryptoBoxContainer
+import CryptoBoxTools
+
+## useful constant for some functions
+CONT_TYPES = CryptoBoxContainer.CryptoBoxContainer.Types
+
+class WebInterfaceDataset(dict):
+	"""this class contains all data that should be available for the clearsilver
+	templates
+	"""
+
+	def __init__(self, cbox, prefs, plugins):
+		self.prefs = prefs
+		self.cbox = cbox
+		self.__setConfigValues()
+		self.plugins = plugins
+		self.setCryptoBoxState()
+		self.setPluginData()
+		self.setContainersState()
+
+
+	def setCryptoBoxState(self):
+		import cherrypy
+		self["Data.Version"] = self.cbox.VERSION
+		langs = self.cbox.getAvailableLanguages()
+		langs.sort()
+		for (index, lang) in enumerate(langs):
+			self.cbox.log.info("language loaded: %s" % lang)
+			self["Data.Languages.%d.name" % index] = lang
+			self["Data.Languages.%d.link" % index] = self.__getLanguageName(lang)
+		try:
+			self["Data.ScriptURL.Prot"] = cherrypy.request.scheme
+			host = cherrypy.request.headers["Host"]
+			self["Data.ScriptURL.Host"] = host.split(":",1)[0]
+			complete_url = "%s://%s" % (self["Data.ScriptURL.Prot"], self["Data.ScriptURL.Host"])
+			try:
+				port = int(host.split(":",1)[1])
+				complete_url += ":%s" % port
+			except (IndexError, ValueError):
+				if cherrypy.request.scheme == "http":
+					port = 80
+				elif cherrypy.request.scheme == "https":
+					port = 443
+				else:
+					## unknown scheme -> port 0
+					self.cbox.log.info("unknown protocol scheme used: %s" % (cherrypy.request.scheme,))
+					port = 0
+			self["Data.ScriptURL.Port"] = port
+			## retrieve the relative address of the CGI (or the cherrypy base address)
+			## remove the last part of the url and add a slash
+			path = "/".join(cherrypy.request.path.split("/")[:-1]) + "/"
+			self["Data.ScriptURL.Path"] = path
+			complete_url += path
+			self["Data.ScriptURL"] = complete_url
+		except AttributeError:
+			self["Data.ScriptURL"] = ""
+
+
+	def setCurrentDiskState(self, device):
+		for container in self.cbox.getContainerList():
+			if container.getDevice() == device:
+				isEncrypted = (container.getType() == CONT_TYPES["luks"]) and 1 or 0
+				isPlain = (container.getType() == CONT_TYPES["plain"]) and 1 or 0
+				isMounted = container.isMounted() and 1 or 0
+				self["Data.CurrentDisk.device"] = container.getDevice()
+				self["Data.CurrentDisk.name"] = container.getName()
+				self["Data.CurrentDisk.encryption"] = isEncrypted
+				self["Data.CurrentDisk.plaintext"] = isPlain
+				self["Data.CurrentDisk.active"] = isMounted
+				self["Data.CurrentDisk.size"] = CryptoBoxTools.getBlockDeviceSizeHumanly(container.getDevice())
+				if isMounted:
+					(size, avail, used) = container.getCapacity()
+					percent = used / size
+					self["Data.CurrentDisk.capacity.used"] = used
+					self["Data.CurrentDisk.capacity.free"] = avail
+					self["Data.CurrentDisk.capacity.size"] = size
+					self["Data.CurrentDisk.capacity.percent"] = percent
+		self["Settings.LinkAttrs.device"] = device
+	
+
+	def setContainersState(self):
+		avail_counter  = 0
+		active_counter = 0
+		for container in self.cbox.getContainerList():
+			## useful if the container was changed during an action
+			container.resetObject()
+			isEncrypted = (container.getType() == CONT_TYPES["luks"]) and 1 or 0
+			isPlain = (container.getType() == CONT_TYPES["plain"]) and 1 or 0
+			isMounted = container.isMounted() and 1 or 0
+			self["Data.Disks.%d.device" % avail_counter] = container.getDevice()
+			self["Data.Disks.%d.name" % avail_counter] = container.getName()
+			self["Data.Disks.%d.encryption" % avail_counter] = isEncrypted
+			self["Data.Disks.%d.plaintext" % avail_counter] = isPlain
+			self["Data.Disks.%d.active" % avail_counter] = isMounted
+			self["Data.Disks.%d.size" % avail_counter] = CryptoBoxTools.getBlockDeviceSizeHumanly(container.getDevice())
+			if isMounted: active_counter += 1
+			avail_counter += 1
+		self["Data.activeDisksCount"] = active_counter
+	
+
+	def setPluginData(self):
+		for p in self.plugins:
+			lang_data = p.getLanguageData()
+			entryName = "Settings.PluginList." + p.getName()
+			self[entryName] = p.getName()
+			self[entryName + ".Link"] = lang_data.getValue("Link", p.getName())
+			self[entryName + ".Rank"] = p.getRank()
+			self[entryName + ".RequestAuth"] = p.isAuthRequired() and "1" or "0"
+			self[entryName + ".Enabled"] = p.isEnabled() and "1" or "0"
+			for a in p.pluginCapabilities:
+				self[entryName + ".Types." + a] = "1"
+
+
+	def __setConfigValues(self):
+		self["Settings.TemplateDir"] = os.path.abspath(self.prefs["Locations"]["TemplateDir"])
+		self["Settings.LanguageDir"] = os.path.abspath(self.prefs["Locations"]["LangDir"])
+		self["Settings.DocDir"] = os.path.abspath(self.prefs["Locations"]["DocDir"])
+		self["Settings.Stylesheet"] = self.prefs["WebSettings"]["Stylesheet"]
+		self["Settings.Language"] = self.prefs["WebSettings"]["Language"]
+		self["Settings.PluginDir"] = self.prefs["Locations"]["PluginDir"]
+		self["Settings.SettingsDir"] = self.prefs["Locations"]["SettingsDir"]
+
+
+	def __getLanguageName(self, lang):
+		try:
+			import neo_cgi, neo_util, neo_cs
+		except:
+			raise CryptoBoxExceptions.CBEnvironmentError("couldn't import 'neo_*'! Try 'apt-get install python-clearsilver'.")
+		hdf_path = os.path.join(self.prefs["Locations"]["LangDir"], lang + ".hdf")
+		hdf = neo_util.HDF()
+		hdf.readFile(hdf_path)
+		return hdf.getValue("Name",lang)
+
+
+

bin/WebInterfaceSites.py

@@ -0,0 +1,427 @@
+import CryptoBox
+import WebInterfaceDataset
+import re
+import Plugins
+from CryptoBoxExceptions import *
+import cherrypy
+import types
+import os
+
+try:
+	import neo_cgi, neo_util, neo_cs
+except ImportError:
+	errorMsg = "Could not import clearsilver module. Try 'apt-get install python-clearsilver'."
+	self.log.error(errorMsg)
+	sys.stderr.write(errorMsg)
+	raise ImportError, errorMsg
+
+
+
+class PluginIconHandler:
+
+	def __init__(self, plugins):
+		for plugin in plugins.getPlugins():
+			if not plugin: continue
+			plname = plugin.getName()
+			## expose the getIcon function of this plugin
+			setattr(self, plname, plugin.getIcon)
+
+
+
+class WebInterfaceSites:
+	'''
+	'''
+
+	## this template is used under strange circumstances
+	defaultTemplate = "empty"
+
+
+	def __init__(self):
+		import logging
+		self.cbox = CryptoBox.CryptoBoxProps()
+		self.log = logging.getLogger("CryptoBox")
+		self.prefs = self.cbox.prefs
+		self.__resetDataset()
+
+
+	def __resetDataset(self):
+		"""this method has to be called at the beginning of every "site" action
+			important: only at the beginning of an action (to not loose information)
+			important: for _every_ "site" action (cherrypy is stateful)
+		also take care for the plugins, as they also contain datasets
+		"""
+		self.__loadPlugins()
+		self.dataset = WebInterfaceDataset.WebInterfaceDataset(self.cbox, self.prefs, self.pluginList.getPlugins())
+		## publish plugin icons
+		self.icons = PluginIconHandler(self.pluginList)
+		self.icons.exposed = True
+		## check, if a configuration partition has become available
+		self.cbox.prefs.preparePartition()
+
+
+	def __loadPlugins(self):
+		self.pluginList = Plugins.PluginManager(self.cbox, self.prefs["Locations"]["PluginDir"])
+		for plugin in self.pluginList.getPlugins():
+			if not plugin: continue
+			plname = plugin.getName()
+			if plugin.isEnabled():
+				self.cbox.log.info("Plugin '%s' loaded" % plname)
+				## this should be the "easiest" way to expose all plugins as URLs
+				setattr(self, plname, self.return_plugin_action(plugin))
+				setattr(getattr(self, plname), "exposed", True)
+				# TODO: check, if this really works - for now the "stream_response" feature seems to be broken
+				#setattr(getattr(self, plname), "stream_respones", True)
+			else:
+				self.cbox.log.info("Plugin '%s' is disabled" % plname)
+				## remove the plugin, if it was active before
+				setattr(self, plname, None)
+
+
+	## this is a function decorator to check authentication
+	## it has to be defined before any page definition requiring authentification
+	def __requestAuth(self=None):
+		def check_credentials(site):
+			def _inner_wrapper(self, *args, **kargs):
+				import base64
+				## define a "non-allowed" function
+				user, password = None, None
+				try:
+					resp = cherrypy.request.headers["Authorization"][6:]	# ignore "Basic "
+					(user, password) = base64.b64decode(resp).split(":",1)
+				except KeyError:
+					## no "authorization" header was sent
+					pass
+				except TypeError:
+					## invalid base64 string
+					pass
+				except AttributeError:
+					## no cherrypy response header defined
+					pass
+				authDict = self.cbox.prefs.userDB["admins"]
+				if user in authDict.keys():
+					if self.cbox.prefs.userDB.getDigest(password) == authDict[user]:
+						## ok: return the choosen page
+						self.cbox.log.info("access granted for: %s" % user)
+						return site(self, *args, **kargs)
+					else:
+						self.cbox.log.info("wrong password supplied for: %s" % user)
+				else:
+					self.cbox.log.info("unknown user: %s" % str(user))
+				## wrong credentials: return "access denied"
+				cherrypy.response.headers["WWW-Authenticate"] = '''Basic realm="CryptoBox"'''
+				cherrypy.response.status = 401
+				return self.__render("access_denied")
+			return _inner_wrapper
+		return check_credentials
+	
+
+	######################################################################
+	## put real sites down here and don't forget to expose them at the end
+
+
+	@cherrypy.expose
+	def index(self, weblang=""):
+		self.__resetDataset()
+		self.__setWebLang(weblang)
+		self.__checkEnvironment()
+		## do not forget the language!
+		param_dict = {"weblang":weblang}
+		## render "disks" plugin by default
+		return self.return_plugin_action(self.pluginList.getPlugin("disks"))(**param_dict)
+	
+
+	def return_plugin_action(self, plugin):
+		def handler(self, **args):
+			self.__resetDataset()
+			self.__checkEnvironment()
+			args_orig = dict(args)
+			## set web interface language
+			try:
+				self.__setWebLang(args["weblang"])
+				del args["weblang"]
+			except KeyError:
+				self.__setWebLang("")
+			## we always read the "device" setting - otherwise volume-plugin links
+			## would not work easily (see "volume_props" linking to "format_fs")
+			## it will get ignored for non-volume plugins
+			try:
+				plugin.device = None
+				if self.__setDevice(args["device"]):
+					plugin.device = args["device"]
+				del args["device"]
+			except KeyError:
+				pass
+			## check the device argument of volume plugins
+			if "volume" in plugin.pluginCapabilities:
+				## initialize the dataset of the selected device if necessary
+				if plugin.device:
+					self.dataset.setCurrentDiskState(plugin.device)
+				else:
+					## invalid (or missing) device setting
+					return self.__render(self.defaultTemplate)
+			## check if there is a "redirect" setting - this will override the return
+			## value of the doAction function (e.g. useful for umount-before-format)
+			try:
+				if args["redirect"]:
+					override_nextTemplate = { "plugin":args["redirect"] }
+					if "volume" in plugin.pluginCapabilities:
+						override_nextTemplate["values"] = {"device":plugin.device}
+					del args["redirect"]
+			except KeyError:
+				override_nextTemplate = None
+			## call the plugin handler
+			nextTemplate = plugin.doAction(**args)
+			## for 'volume' plugins: reread the dataset of the current disk
+			## additionally: set the default template for plugins
+			if "volume" in plugin.pluginCapabilities:
+				## maybe the state of the current volume was changed?
+				self.dataset.setCurrentDiskState(plugin.device)
+				if not nextTemplate: nextTemplate = { "plugin":"volume_mount", "values":{"device":plugin.device}}
+			else:
+				## maybe a non-volume plugin changed some plugin settings (e.g. plugin_manager)
+				self.dataset.setPluginData()
+				## update the container hdf-dataset (maybe a plugin changed the state of a container)
+				self.dataset.setContainersState()
+				## default page for non-volume plugins is the disk selection
+				if not nextTemplate: nextTemplate = { "plugin":"disks", "values":{} }
+			## was a redirect requested?
+			if override_nextTemplate:
+				nextTemplate = override_nextTemplate
+			## if another plugins was choosen for 'nextTemplate', then do it!
+			if isinstance(nextTemplate, types.DictType) \
+					and "plugin" in nextTemplate.keys() \
+					and "values" in nextTemplate.keys() \
+					and self.pluginList.getPlugin(nextTemplate["plugin"]):
+				valueDict = dict(nextTemplate["values"])
+				## force the current weblang attribute - otherwise it gets lost
+				valueDict["weblang"] = self.dataset["Settings.Language"]
+				new_plugin = self.pluginList.getPlugin(nextTemplate["plugin"])
+				return self.return_plugin_action(new_plugin)(**valueDict)
+			## save the currently active plugin name
+			self.dataset["Data.ActivePlugin"] = plugin.getName()
+			return self.__render(nextTemplate, plugin)
+		## apply authentication?
+		if plugin.isAuthRequired():
+			return lambda **args: self.__requestAuth()(handler)(self, **args)
+		else:
+			return lambda **args: handler(self, **args)
+
+				
+	## test authentication
+	@cherrypy.expose
+	@__requestAuth
+	def test(self, weblang=""):
+		self.__resetDataset()
+		self.__setWebLang(weblang)
+		self.__checkEnvironment()
+		return "test passed"
+	
+
+	@cherrypy.expose
+	def test_stream(self):
+		"""just for testing purposes - to check if the "stream_response" feature
+		actually works - for now (September 02006) it does not seem to be ok"""
+		import time
+		yield "<html><head><title>neu</title></head><body><p><ul>"
+		for a in range(10):
+			yield "<li>yes: %d - %s</li>" % (a, str(time.time()))
+			time.sleep(1)
+		yield "</ul></p></html>"
+
+
+
+	##################### input checker ##########################
+
+	def __checkEnvironment(self):
+		"""here we should place all interesting checks to inform the user of problems
+
+		examples are: non-https, readonly-config, ...
+		"""
+		## TODO: maybe add an option "mount"?
+		if self.cbox.prefs.requiresPartition() and not self.cbox.prefs.getActivePartition():
+			self.dataset["Data.EnvironmentWarning"] = "ReadOnlyConfig"
+		# TODO: turn this on soon (add "not") - for now it is annoying
+		if self.__checkHTTPS():
+			self.dataset["Data.EnvironmentWarning"] = "NoSSL"
+
+
+	def __checkHTTPS(self):
+		## check the request scheme
+		if cherrypy.request.scheme == "https": return True
+		## check an environment setting - this is quite common behind proxies
+		try:
+			if os.environ["HTTPS"]: return True
+		except KeyError:
+			pass
+		## check http header TODO (check pound for the name)
+		try:
+			if cherrypy.request.headers["TODO"]: return True
+		except KeyError:
+			pass
+		## the connection seems to be unencrypted
+		return False
+
+
+	def __setWebLang(self, value):
+		guess = value
+		availLangs = self.cbox.getAvailableLanguages()
+		## no language specified: check browser language
+		if not guess:
+			guess = self.__getPreferredBrowserLanguage(availLangs)
+		## no preferred language or invalid language?
+		if not guess \
+				or not guess in availLangs \
+				or re.search(u'\W', guess):
+			## warn only for invalid languages
+			if not guess is None:
+				self.cbox.log.info("invalid language choosen: %s" % guess)
+			guess = self.prefs["WebSettings"]["Language"]
+		## maybe the language is still not valid
+		if not guess in availLangs:
+			self.log.warn("the configured language is invalid: %s" % guess)
+			guess = "en"
+		## maybe there is no english dataset???
+		if not guess in availLangs:
+			self.log.warn("couldn't find the english dataset")
+			guess = availLangs[0]
+		self.dataset["Settings.Language"] = guess
+		## we only have to save it, if it was specified correctly and explicitly
+		if value == guess:
+			self.dataset["Settings.LinkAttrs.weblang"] = guess
+
+
+	def __getPreferredBrowserLanguage(self, availLangs):
+		"""guess the preferred language of the user (as sent by the browser)
+		take the first language, that is part of 'availLangs'
+		"""
+		try:
+			pref_lang_header = cherrypy.request.headers["Accept-Language"]
+		except KeyError:
+			## no language header was specified
+			return None
+		## this could be a typical 'Accept-Language' header:
+		##	de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
+		regex = re.compile(u"\w+(-\w+)?(;q=[\d\.]+)?$")
+		pref_langs = [e.split(";",1)[0]
+			for e in pref_lang_header.split(",")
+			if regex.match(e)]
+		## is one of these preferred languages available?
+		for lang in pref_langs:
+			if lang in availLangs: return lang
+		## we try to be nice: also look for "de" if "de-de" was specified ...
+		for lang in pref_langs:
+			## use only the first part of the language
+			short_lang = lang.split("-",1)[0]
+			if short_lang in availLangs: return short_lang
+		## we give up
+		return None
+
+
+	def __setDevice(self, device):
+		if device and re.match(u'[\w /\-]+$', device) and self.cbox.getContainer(device):
+			self.log.debug("select device: %s" % device)
+			return True
+		else:
+			self.log.warn("invalid device: %s" % device)
+			self.dataset["Data.Warning"] = "InvalidDevice"
+			return False
+	
+
+	def __checkVolumeName(self, name):
+		if name and re.match(u'[\w \-]+$', name):
+			return True
+		else:
+			return False
+
+
+	def __getLanguageValue(self, value):
+		hdf = self.__getLanguageData(self.dataset["Settings.Language"])
+		return hdf.getValue(value, "")
+
+
+	def __getLanguageData(self, web_lang="en"):
+		default_lang = "en"
+		conf_lang = self.prefs["WebSettings"]["Language"]
+		hdf = neo_util.HDF()
+		langDir = os.path.abspath(self.prefs["Locations"]["LangDir"])
+		langFiles = []
+		## first: read default language (en)
+		if (default_lang != conf_lang) and (default_lang != web_lang):
+			langFiles.append(os.path.join(langDir, default_lang + ".hdf"))
+		## second: read language as defined in the config file
+		if (conf_lang != web_lang):
+			langFiles.append(os.path.join(langDir, conf_lang + ".hdf"))
+		## third: read language as configured via web interface
+		langFiles.append(os.path.join(langDir, web_lang + ".hdf"))
+		for langFile in langFiles:
+			if os.access(langFile, os.R_OK):
+				hdf.readFile(langFile)
+			else:
+				log.warn("Couldn't read language file: %s" % langFile)
+		return hdf
+
+	
+	def __render(self, renderInfo, plugin=None):
+		'''renders from clearsilver templates and returns the resulting html
+		'''
+		## is renderInfo a string (filename of the template) or a dictionary?
+		if type(renderInfo) == types.DictType:
+			template = renderInfo["template"]
+			if renderInfo.has_key("generator"):
+				generator = renderInfo["generator"]
+			else:
+				generator = False
+		else:
+			(template, generator) = (renderInfo, None)
+
+		## load the language data
+		hdf = neo_util.HDF()
+		hdf.copy("Lang", self.__getLanguageData(self.dataset["Settings.Language"]))
+
+		## first: assume, that the template file is in the global template directory
+		self.dataset["Settings.TemplateFile"] = os.path.abspath(os.path.join(self.prefs["Locations"]["TemplateDir"], template + ".cs"))
+
+		if plugin:
+			## check, if the plugin provides the template file -> overriding
+			plugin_cs_file = plugin.getTemplateFileName(template)
+			if plugin_cs_file:
+				self.dataset["Settings.TemplateFile"] = plugin_cs_file
+
+			## add the current state of the plugins to the hdf dataset
+			self.dataset["Data.Status.Plugins.%s" % plugin.getName()] = plugin.getStatus()
+			## load the language data
+			pl_lang = plugin.getLanguageData(self.dataset["Settings.Language"])
+			if pl_lang:
+				hdf.copy("Lang.Plugins.%s" % plugin.getName(), pl_lang)
+			## load the dataset of the plugin
+			plugin.loadDataSet(hdf)
+
+		self.log.info("rendering site: " + template)
+
+		cs_path = os.path.abspath(os.path.join(self.prefs["Locations"]["TemplateDir"], "main.cs"))
+		if not os.access(cs_path, os.R_OK):
+			log.error("Couldn't read clearsilver file: %s" % cs_path)
+			yield "Couldn't read clearsilver file: %s" % cs_path
+			return
+
+		self.log.debug(self.dataset)
+		for key in self.dataset.keys():
+			hdf.setValue(key,str(self.dataset[key]))
+		cs = neo_cs.CS(hdf)
+		cs.parseFile(cs_path)
+
+		## is there a generator containing additional information?
+		if generator is None:
+			## all content in one flush
+			yield cs.render()
+		else:
+			content_generate = generator()
+			dummy_line = """<!-- CONTENT_DUMMY -->"""
+			## now we do it linewise - checking for the content marker
+			for line in cs.render().splitlines():
+				if line.find(dummy_line) != -1:
+					yield line.replace(dummy_line, content_generate.next())
+				else:
+					yield line + "\n"
+
+

bin/WebInterfaceTestClass.py

@@ -0,0 +1,77 @@
+"""
+super class of all web interface unittests for the cryptobox
+
+just inherit this class and add some test functions
+"""
+
+import unittest
+import twill
+import cherrypy 
+import WebInterfaceSites
+
+## we do the following, for easy surfing
+## e.g. use: cbx.go(your_url)
+## commands api: http://twill.idyll.org/commands.html
+CBXHOST="localhost"
+CBXPORT=8081
+CBX_URL="http://%s:%d/" % (CBXHOST, CBXPORT)
+LOG_FILE="/tmp/twill.log"
+
+class WebInterfaceTestClass(unittest.TestCase):
+	'''this class checks the webserver, using "twill"
+
+	the tests in this class are from the browsers point of view, so not
+	really unittests.
+	fetch twill from: http://twill.idyll.org
+	one way to manually run twill code is through the python
+	interpreter commandline e.g.:
+
+	import twill
+	twill.shell.main()
+	go http://localhost:8080
+	find "my very special html content"
+	help
+	'''
+
+	def setUp(self):
+		'''configures the cherrypy server that it works nice with twill
+		'''
+		cherrypy.config.update({ 
+					'server.logToScreen' : False,
+					'autoreload.on': False,
+					'server.threadPool': 1,
+					'server.environment': 'production',
+					})
+		cherrypy.root = WebInterfaceSites.WebInterfaceSites()
+		cherrypy.server.start(initOnly=True, serverClass=None)
+
+		from cherrypy._cpwsgi import wsgiApp 
+		twill.add_wsgi_intercept(CBXHOST, CBXPORT, lambda: wsgiApp) 
+
+		# grab the output of twill commands
+		self.output = open(LOG_FILE,"a")
+		twill.set_output(self.output)
+		self.cmd = twill.commands
+		self.URL = CBX_URL
+		self.cbox = cherrypy.root.cbox
+		self.globals, self.locals = twill.namespaces.get_twill_glocals()
+
+
+	def tearDown(self):
+		'''clean up the room when leaving'''
+		# remove intercept.
+		twill.remove_wsgi_intercept(CBXHOST, CBXPORT)
+		# shut down the cherrypy server.
+		cherrypy.server.stop()
+		self.output.close()
+
+
+	def __get_soup():
+		browser = twill.commands.get_browser()
+		soup = BeautifulSoup(browser.get_html())
+		return soup
+
+
+	def register_auth(self, url, user="admin", password="admin"):
+		self.cmd.add_auth("CryptoBox", url, user, password)
+

bin/coding_guidelines.txt

@@ -0,0 +1,18 @@
+Maybe we can add some notes here to get a consistent coding experience :)
+
+-------------------------------------------------------------------------------
+
+comments:
+	- should be usable for pydoc
+	 - ''' or """ at the beginning of every class/method
+	 - ## for longterm comments, that are useful for understanding
+	 - #blabla for codelines, that are out for experimenting and might be used later again
+
+error handling:
+	- unspecific error handling is evil (try: "grep -r except: .")
+
+unit testing:
+	- first write a unittest and then write the relating code until the unittest stops failing :)
+	- 'unittests.ClassName.py' should contain all tests for 'ClassName.py'
+	- commits with broken unit tests are evil (fix or disable the code (not the test ;) ))
+

bin/cryptobox.conf

@@ -0,0 +1,83 @@
+[Main]
+
+# comma separated list of possible prefixes for accesible devices
+# beware: .e.g "/dev/hd" grants access to _all_ harddisks
+AllowedDevices = /dev/loop, /dev/ubdb
+
+# use sepepate config partition? (1=yes / 0=no)
+UseConfigPartition = 1
+
+# the default name prefix of not unnamed containers
+DefaultVolumePrefix = "Disk "
+
+# which cipher should cryptsetup-luks use?
+#TODO: uml does not support this module - DefaultCipher = aes-cbc-essiv:sha256
+DefaultCipher = aes-plain
+
+# label of the configuration partition (you should never change this)
+ConfigVolumeLabel = cbox_config
+
+
+[Locations]
+# where should we mount volumes?
+# this directory must be writeable by the cryptobox user (see above)
+MountParentDir = /var/cache/cryptobox/mnt
+
+# settings directory: contains name database and plugin configuration
+SettingsDir = /var/cache/cryptobox/settings
+
+# where are the clearsilver templates?
+#TemplateDir = /usr/share/cryptobox/templates
+TemplateDir = ../templates
+
+# path to language files
+#LangDir = /usr/share/cryptobox/lang
+LangDir = ../lang
+
+# path to documentation	files
+#DocDir = /usr/share/doc/cryptobox/html
+DocDir = ../doc/html
+
+# path to the plugin directory
+#PluginDir = /usr/share/cryptobox/plugins
+PluginDir = ../plugins
+
+
+
+[Log]
+# possible values are "debug", "info", "warn" and "error" or numbers from
+# 0 (debug) to 7 (error)
+Level		= debug
+
+# where to write the log messages to?
+# possible values are: file
+# syslog support will be added later
+Destination	= file
+
+# depending on the choosen destination (see above) you may select
+# details. Possible values for the different destinations are:
+#  file:	$FILENAME
+#  syslog:	$LOG_FACILITY
+#Details	= /var/log/cryptobox.log
+Details	= ./cryptobox.log
+
+
+[WebSettings]
+# URL of default stylesheet
+Stylesheet = /cryptobox-misc/cryptobox.css
+
+# default language
+Language = de
+
+
+[Programs]
+cryptsetup	= /sbin/cryptsetup
+mkfs-data	= /sbin/mkfs.ext3
+blkid		= /sbin/blkid
+blockdev	= /sbin/blockdev
+mount		= /bin/mount
+umount		= /bin/umount
+super		= /usr/bin/super
+# this is the "program" name as defined in /etc/super.tab
+CryptoBoxRootActions = CryptoBoxRootActions
+

bin/cryptoboxd

@@ -0,0 +1,39 @@
+#!/bin/sh
+
+#TODO: CBXPATH=/usr/lib/cryptobox
+CBXPATH=$(pwd)
+CBXSERVER=CryptoBoxWebserver.py
+PIDFILE=/var/run/cryptobox.pid
+DAEMON=/usr/bin/python2.4
+DAEMON_OPTS=${CBXPATH}/CryptoBoxWebserver.py
+NAME=cryptoboxd
+DESC="CryptoBox Daemon (webinterface)"
+#TODO: RUNAS=cryptobox
+RUNAS=$USERNAME
+
+#test -x $DAEMON -a -f /etc/exports || exit 0
+
+set -e
+
+case "$1" in
+	start)
+		echo -n "Starting $DESC: "
+		start-stop-daemon --background --chdir "$CBXPATH" --chuid "$RUNAS" --start --quiet --oknodo --user "$RUNAS" --make-pidfile --pidfile "$PIDFILE" --exec "$DAEMON" \
+			-- $DAEMON_OPTS 
+		echo "$NAME."
+		;;
+
+	stop)
+		echo -n "Stopping $DESC: "
+		#FIXME: this is the same as "killall python2.4"
+		# using a pid file instead prevents problems, but does not kill children???
+		start-stop-daemon --stop --oknodo --exec "$DAEMON"
+		echo "$NAME."
+		;;
+	*)
+		echo "Usage: $(basename $0) {start|stop}" >&2
+		exit 1
+		;;
+esac
+
+exit 0

bin/cryptoboxwebserver.conf

@@ -0,0 +1,17 @@
+[global] 
+server.socketPort = 8080
+#server.environment = "production"
+server.environment = "development"
+server.logToScreen = True
+server.log_tracebacks = True
+server.threadPool = 1
+server.reverseDNS = False
+server.logFile = "cryptoboxwebserver.log"
+
+[/favicon.ico]
+static_filter.on = True
+# TODO: use live-cd/live-cd-tree.d/var/www/favicon.ico
+static_filter.file = "/usr/share/doc/python-cherrypy/cherrypy/favicon.ico"
+
+[/test_stream]
+stream_response = True

bin/do_unittests.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+#
+# run this script _before_ you do a commit and fix errors before uploading
+#
+
+# check if /dev/loop1 is available - otherwise some tests will fail!
+if /sbin/losetup /dev/loop1 &>/dev/null
+  then	true
+  else	echo "misconfiguration detected: sorry - you need /dev/loop1 for the tests" >&2
+  		echo "just do the following:" >&2
+		echo "	dd if=/dev/zero of=test.img bs=1M count=1 seek=100" >&2
+		echo "	sudo /sbin/losetup /dev/loop1 test.img" >&2
+		echo "then you can run the tests again ..." >&2
+		echo >&2
+		exit 1
+ fi
+
+# do the tests
+for a in unittests.*.py
+	do	testoob -v "$a"
+ done
+

bin/example-super.tab

@@ -0,0 +1,2 @@
+# adapt the following line to your local setup and add it to /etc/super.tab
+CryptoBoxRootActions	/your/local/path/to/CryptoBoxRootActions.py	yourUserName

bin/test.complete.CryptoBox.py

@@ -0,0 +1,116 @@
+#!/usr/bin/env python2.4
+
+"""
+BEWARE: this script may overwrite the data of one of your loop devices. You
+should restrict the AllowedDevices directive in cryptobox.conf to exclude
+your precious black devices from being used by this script.
+
+the following script runs a number of tests for different parts 
+"""
+
+from CryptoBox import CryptoBoxProps
+from CryptoBoxContainer import CryptoBoxContainer
+import sys
+
+
+def main():
+	cb = CryptoBoxProps()
+
+	print "Confguration:"
+	print "\tConfig file:\t\t%s" % (cb.prefs.prefs.filename, )
+	print "\tAllowed devices:\t%s" % (cb.prefs["Main"]["AllowedDevices"], )
+
+	"""for e in cb.getContainerList(filterType=CryptoBoxContainer.Types["luks"]):"""
+	for e in cb.getContainerList():
+		print "\t\t%d\t\t%s - %s - %d" % (cb.getContainerList().index(e), e.getDevice(), e.getName(), e.getType())
+
+	if not cb.getContainerList() or len(cb.getContainerList()) < 1:
+		print "no loop devices found for testing"
+		sys.exit(1)
+
+	if len(cb.getContainerList()) > 1:
+		print "I found more than one available loop device - I will stop now to avoid risking data loss."
+		print "Please change the 'AllowedDevices' setting in 'cryptobox.conf' to reduce the number of allowed devices to only one."
+		sys.exit(1)
+
+	testElement = cb.getContainerList()[0]
+	print "\nRunning some tests now ..."
+	if not plain_tests(testElement):
+		print "some previous tests failed - we should stop now"
+		sys.exit(1)
+	luks_tests(testElement)
+
+
+" ***************** some functions ******************** "
+
+def luks_tests(e):
+	# umount if necessary
+	try:
+		e.umount()
+	except "MountError":
+		pass
+	
+	e.create(e.Types["luks"], "alt")
+	print "\tluks create:\tok"
+
+	e.changePassword("alt","neu")
+	print "\tluks changepw:\tok"
+
+	e.setName("lalla")
+	print "\tluks setName:\tok"
+
+	try:
+		e.mount("neu")
+	except "MountError":
+		pass
+	if e.isMounted():	print "\tluks mount:\tok"
+	else:				print "\tluks mount:\tfailed"
+
+	print "\tCapacity (size, free, used) [MB]:\t%s" % (e.getCapacity(), )
+
+	try:
+		e.umount()
+	except "MountError":
+		pass
+	if e.isMounted():	print "\tluks umount:\tfailed"
+	else:				print "\tluks umount:\tok"
+
+	if e.isMounted(): return False
+	else: return True
+
+
+def	plain_tests(e):
+	# umount if necessary
+	try:
+		e.umount()
+	except "MountError":
+		pass
+	
+	e.create(e.Types["plain"])
+	print "\tplain create:\tok"
+
+	e.setName("plain-lili")
+	print "\tplain setName:\tok"
+
+	try:
+		e.mount()
+	except "MountError":
+		pass
+	if e.isMounted():	print "\tplain mount:\tok"
+	else:				print "\tplain mount:\tfailed"
+
+	print "\tCapacity (size, free, used) [MB]:\t%s" % (e.getCapacity(), )
+
+	try:
+		e.umount()
+	except "MountError":
+		pass
+	if e.isMounted():	print "\tplain umount:\tfailed"
+	else:				print "\tplain umount:\tok"
+
+	if e.isMounted(): return False
+	else: return True
+
+# ************ main ****************
+
+main()

bin/uml-setup.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+ROOT_IMG=/home/lars/devel-stuff/devel-chroots/cryptobox.img
+TEST_IMG=test.img
+TEST_SIZE=256
+MEM_SIZE=128M
+
+# Preparations:
+#  echo "tun" >>/etc/modules
+#  follow the instructions in /usr/share/doc/uml-utilities/README.Debian
+#  add your user to the group 'uml-net'
+#
+
+/sbin/ifconfig tap0 &>/dev/null || { echo "tap0 is not configured - read /usr/share/doc/uml-utilities/README.Debian for hints"; exit 1; }
+
+
+if [ ! -e "$TEST_IMG" ]
+	then	echo "Creating testing image file ..."
+			dd if=/dev/zero of="$TEST_IMG" bs=1M count=$TEST_SIZE
+  fi
+
+linux ubd0="$ROOT_IMG" ubd1="$TEST_IMG" con=xterm hostfs=../ fakehd eth0=daemon mem=$MEM_SIZE
+

bin/unittests.CryptoBox.py

@@ -0,0 +1,138 @@
+#!/usr/bin/env python2.4
+
+import unittest
+import sys
+from CryptoBox import *
+from CryptoBoxExceptions import *
+import CryptoBoxSettings
+
+class CryptoBoxPropsDeviceTests(unittest.TestCase):
+	import CryptoBox
+	cb = CryptoBox.CryptoBoxProps()
+		
+	def testAllowedDevices(self):
+		'''isDeviceAllowed should accept permitted devices'''
+		self.assertTrue(self.cb.isDeviceAllowed("/dev/loop"))
+		self.assertTrue(self.cb.isDeviceAllowed("/dev/loop1"))
+		self.assertTrue(self.cb.isDeviceAllowed("/dev/loop/urgd"))
+		self.assertTrue(self.cb.isDeviceAllowed("/dev/usb/../loop1"))
+	
+	def testDeniedDevices(self):
+		'''isDeviceAllowed should fail with not explicitly allowed devices'''
+		self.assertFalse(self.cb.isDeviceAllowed("/dev/hda"))
+		self.assertFalse(self.cb.isDeviceAllowed("/dev/loopa/../hda"))
+		self.assertFalse(self.cb.isDeviceAllowed("/"))
+	
+
+class CryptoBoxPropsConfigTests(unittest.TestCase):
+	'''test here if everything with the config turns right'''
+	import os
+	import CryptoBox
+	
+	files = {
+		"configFileOK"	:  "cbox-test_ok.conf",
+		"configFileBroken"	:  "cbox-test_broken.conf",
+		"nameDBFile"	: "cryptobox_names.db",
+		"pluginConf"	: "cryptobox_plugins.conf",
+		"userDB"	: "cryptobox_users.db",
+		"logFile"	: "cryptobox.log",
+		"tmpdir"	: "cryptobox-mnt" }
+	tmpdirname = ""
+	filenames = {}
+	configContentOK = """
+[Main]
+AllowedDevices  = /dev/loop
+DefaultVolumePrefix = "Data "
+DefaultCipher   = aes-cbc-essiv:sha256
+[Locations]
+SettingsDir    = %s
+MountParentDir  = %s
+TemplateDir		= ../templates
+LangDir			= ../lang
+DocDir			= ../doc/html
+PluginDir		= ../plugins
+[Log]
+Level           = debug
+Destination        = file
+Details     = %s/cryptobox.log
+[WebSettings]
+Stylesheet	= /cryptobox-misc/cryptobox.css
+[Programs]
+blkid			= /sbin/blkid
+cryptsetup		= /sbin/cryptsetup
+super			= /usr/bin/super
+CryptoBoxRootActions	= CryptoBoxRootActions
+"""
+
+
+	def setUp(self):
+		'''generate all files in tmp and remember the names'''
+		import tempfile
+		os = self.os
+		self.tmpdirname = tempfile.mkdtemp(prefix="cbox-")
+		for file in self.files.keys():
+			self.filenames[file] = os.path.join(self.tmpdirname, self.files[file])
+		self.writeConfig()
+
+
+	def tearDown(self):
+		'''remove the created tmpfiles'''
+		os = self.os
+		# remove temp files
+		for file in self.filenames.values():
+			compl_name = os.path.join(self.tmpdirname, file)
+			if os.path.exists(compl_name): 
+				os.remove(compl_name)
+		# remove temp dir
+		os.rmdir(self.tmpdirname)
+
+
+	def testConfigInit(self):
+		'''Check various branches of config file loading'''
+		import os
+		self.assertRaises(CBConfigUnavailableError, self.CryptoBox.CryptoBoxProps,"/invalid/path/to/config/file")
+		self.assertRaises(CBConfigUnavailableError, self.CryptoBox.CryptoBoxProps,"/etc/shadow")
+		""" check one of the following things:
+		1) are we successfully using an existing config file?
+		2) do we break, if no config file is there?
+		depending on the existence of a config file, only one of these conditions
+		can be checked - hints for more comprehensive tests are appreciated :) """
+		for a in CryptoBoxSettings.CryptoBoxSettings.CONF_LOCATIONS:
+			if os.path.exists(a):
+				self.CryptoBox.CryptoBoxProps()
+				break	# this skips the 'else' clause
+		else:	self.assertRaises(CBConfigUnavailableError, self.CryptoBox.CryptoBoxProps) 
+		self.assertRaises(CBConfigUnavailableError, self.CryptoBox.CryptoBoxProps,[])
+
+	
+	def testBrokenConfigs(self):
+		"""Check various broken configurations"""
+		self.writeConfig("SettingsDir", "SettingsDir=/foo/bar", filename=self.filenames["configFileBroken"])
+		self.assertRaises(CBConfigError, self.CryptoBox.CryptoBoxProps,self.filenames["configFileBroken"])
+		self.writeConfig("Level", "Level = ho", filename=self.filenames["configFileBroken"])
+		self.assertRaises(CBConfigError, self.CryptoBox.CryptoBoxProps,self.filenames["configFileBroken"])
+		self.writeConfig("Details", "#out", filename=self.filenames["configFileBroken"])
+		self.assertRaises(CBConfigError, self.CryptoBox.CryptoBoxProps,self.filenames["configFileBroken"])
+		self.writeConfig("super", "super=/bin/invalid/no", filename=self.filenames["configFileBroken"])
+		self.assertRaises(CBConfigError, self.CryptoBox.CryptoBoxProps,self.filenames["configFileBroken"])
+		self.writeConfig("CryptoBoxRootActions", "#not here", filename=self.filenames["configFileBroken"])
+		self.assertRaises(CBConfigError, self.CryptoBox.CryptoBoxProps,self.filenames["configFileBroken"])
+		self.writeConfig("CryptoBoxRootActions", "CryptoBoxRootActions = /bin/false", filename=self.filenames["configFileBroken"])
+		self.assertRaises(CBEnvironmentError, self.CryptoBox.CryptoBoxProps,self.filenames["configFileBroken"])
+	
+
+	def writeConfig(self, replace=None, newline=None, filename=None):
+		"""write a config file and (optional) replace a line in it"""
+		import re
+		if not filename: filename = self.filenames["configFileOK"]
+		content = self.configContentOK % (self.tmpdirname, self.tmpdirname, self.tmpdirname)
+		if replace:
+			pattern = re.compile('^' + replace + '\\s*=.*$', flags=re.M)
+			content = re.sub(pattern, newline, content)
+		cf = open(filename, "w")
+		cf.write(content)
+		cf.close()
+
+
+if __name__ == "__main__":
+	unittest.main()

bin/unittests.CryptoBoxTools.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python2.4
+
+import unittest
+import CryptoBoxTools
+import os
+
+
+class CryptoBoxToolsTests(unittest.TestCase):
+
+	def testGetAbsoluteDeviceName(self):
+		func = CryptoBoxTools.getAbsoluteDeviceName
+		self.assertTrue(func("hda") == "/dev/hda")
+		self.assertTrue(func("loop0") == "/dev/loop0")
+		self.assertTrue(func(os.path.devnull) == os.path.devnull)
+
+
+	def testFindMajorMinorOfDevice(self):
+		func = CryptoBoxTools.findMajorMinorOfDevice
+		self.assertTrue(func("/dev/hda") == (3,0))
+		self.assertTrue(func("/dev/hda1") == (3,1))
+		self.assertTrue(func(os.path.devnull) == (1,3))
+		self.assertTrue(func("/dev/nothere") is None)
+
+
+	def testFindMajorMinorDeviceName(self):
+		func = CryptoBoxTools.findMajorMinorDeviceName
+		dir = os.path.join(os.path.sep, "dev")
+		self.assertTrue(os.path.join(dir,"hda") in func(dir,3,0))
+		self.assertTrue(os.path.devnull in func(dir,1,3))
+		self.assertFalse(os.path.devnull in func(dir,2,3))
+
+
+	def testIsPartOfBlockDevice(self):
+		func = CryptoBoxTools.isPartOfBlockDevice
+		self.assertTrue(func("/dev/hda", "/dev/hda1"))
+		self.assertFalse(func("/dev/hda", "/dev/hda"))
+		self.assertFalse(func("/dev/hda1", "/dev/hda"))
+		self.assertFalse(func("/dev/hda1", "/dev/hda1"))
+		self.assertFalse(func("/dev/hda", "/dev/hdb1"))
+		self.assertFalse(func(None, "/dev/hdb1"))
+		self.assertFalse(func("/dev/hda", None))
+		self.assertFalse(func(None, ""))
+		self.assertFalse(func("loop0", "loop1"))
+
+
+if __name__ == "__main__":
+	unittest.main()
+

bin/unittests.Plugins.py

@@ -0,0 +1,33 @@
+#!/usr/bin/python2.4
+
+import unittest
+import Plugins
+
+class CheckForUndefinedTestCases(unittest.TestCase):
+	"""here we will add failing test functions for every non-existing testcase"""
+
+
+def create_testcases():
+	
+	plugins = Plugins.PluginManager(None, "../plugins").getPlugins()
+	glob_dict = globals()
+	loc_dict = locals()
+	for pl in plugins:
+		test_class = pl.getTestClass()
+		if test_class:
+			## add the testclass to the global dictionary
+			glob_dict["unittest" + pl.getName()] = test_class
+		else:
+			subname = "test_existence_%s" % pl.getName()
+			def test_existence(self):
+				"""check if the plugin (%s) contains tests""" % pl.getName()
+				self.fail("no tests defined for plugin: %s" % pl.getName())
+			## add this function to the class above
+			setattr(CheckForUndefinedTestCases, subname, test_existence)
+			#FIXME: the failure output always contains the same name for all plugins
+
+
+create_testcases()
+
+if __name__ == "__main__":
+	unittest.main()

bin/unittests.WebSites.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python2.4
+
+import unittest
+
+## this makes assertRaises shorter
+from twill.errors import *
+from mechanize import BrowserStateError, LinkNotFoundError
+
+## import the module of the common super class of all web interface test classes
+import WebInterfaceTestClass
+
+
+
+class WebServer(WebInterfaceTestClass.WebInterfaceTestClass):
+
+	def test_is_server_running(self):
+		'''the server should run under given name and port'''
+		self.cmd.go(self.URL)
+		## other URLs must not be checked, as we do not know, if they are valid
+
+
+class BuiltinPages(WebInterfaceTestClass.WebInterfaceTestClass):
+
+
+	def test_goto_index(self):
+		'''display all devices'''
+		self.cmd.go(self.URL + "?weblang=en")
+		self.cmd.find("The CryptoBox")
+		self.cmd.go(self.URL + "?weblang=de")
+		self.cmd.find("Die CryptoBox")
+		self.cmd.go(self.URL + "?weblang=si")
+		self.cmd.find("Privatnost v vsako vas")
+		self.cmd.go(self.URL + "?weblang=fr")
+		self.cmd.find("La CryptoBox")
+
+
+if __name__ == "__main__":
+	unittest.main()
+

debian/README.Debian

@@ -1,6 +1,5 @@
 CryptoBox for Debian - installation notes
 
-be aware of two things:
+be aware of one thing:
 1) you need cryptsetup with luks support (for now only in unstable)
-2) the debian perl-clearsilver package is broken (at least until April 02006)
 

debian/control

@@ -7,8 +7,7 @@ Standards-Version: 3.6.2
 
 Package: cryptobox
 Architecture: any
-Depends: bash (>=2.0), sed (>=4.0), coreutils, grep (>=2.0), perl, httpd-cgi, hashalot, libconfigfile-perl, cryptsetup (>=20050111), dmsetup, pmount, initscripts, e2fsprogs (>= 1.27), adduser
-Recommends: perl-clearsilver
+Depends: bash (>=2.0), sed (>=4.0), coreutils, grep (>=2.0), httpd-cgi, hashalot, cryptsetup (>=20050111), dmsetup, initscripts, e2fsprogs (>= 1.27), adduser, python (>=2.4), python-clearsilver
 Suggests: cron, samba
 Description: Web interface for an encrypting fileserver
  This bundle of scripts and cgis allow you to manage an encrypted harddisk

debian/rules

@@ -74,19 +74,14 @@ binary-arch: build install
 #	dh_installmenu
 #	dh_installdebconf	
 #	dh_installlogrotate
-#	dh_installemacsen
-#	dh_installpam
-#	dh_installmime
 	dh_installinit
 #	dh_installcron
-#	dh_installinfo
 	dh_installman
 	dh_link
 	dh_strip
 	dh_compress
 	dh_fixperms
-	dh_perl
-#	dh_python
+	dh_python
 #	dh_makeshlibs
 	dh_installdeb
 	dh_shlibdeps

design/background_frame_corner.svg

@@ -0,0 +1,265 @@
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