remove some environment settings during startup

bin/CryptoBoxWebserver

@@ -26,6 +26,9 @@
 
 __revision__ = "$Id"
 
+REMOVE_ENV_SETTINGS = [ "LANG", "LC", "LC_ALL", "LC_COLLATE", "LC_CTYPE",
+		"LC_MESSAGES", "LC_NUMERIC", "BASH_ENV", "SHELLOPTS" ]
+
 import os, sys
 import cryptobox.web.sites
 from cryptobox.core.exceptions import *
@@ -340,6 +343,14 @@ def parseOptions():
 	return options
 
 
+def clean_environment(settings_list):
+	"""Remove some environment settings with side effects (e.g. LANG)
+	
+	Useful, as some plugins depend on the output of other commands - localized
+	output would be quite ugly for them ...
+	"""
+	for one_setting in settings_list:
+		os.unsetenv(one_setting)
 
 
 if __name__ == "__main__":
@@ -349,6 +360,8 @@ if __name__ == "__main__":
 	os.umask(022)
 	## initialize the webserver class (before forking to get some error messages)
 	cbw = CryptoBoxWebserver(options)
+	## remove some environment settings
+	clean_environment(REMOVE_ENV_SETTINGS)
 	## fork to background before cbw.start() - otherwise we lose the socket
 	if options.background:
 		fork_to_background()