Move config file to an arbitrary path.

Implement loading of config.py from arbitrary path. The file potentially
contains sensitive material like passwords, usernames, list of routers
etc. and should be placed outside the www root directory.

defaults.py

@@ -16,6 +16,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# Router config file
+config_file = '/etc/ulg/config.py'
+
 # HTML presentation settings
 header = 'Universal looking glass test header'
 refresh_interval = 5                             # interval of html refresh

tests.py

@@ -21,7 +21,6 @@
 import os, sys
 import random
 
-import config
 import defaults
 
 import ulgmodel
@@ -33,6 +32,8 @@ import re
 import time
 import traceback
 
+config = ulgmodel.import_config()
+
 
 def testRouterCommand(router=0,command=0,params=[]):
     r = config.routers[router]

ulg-cron.py

@@ -24,11 +24,12 @@ import time, datetime
 import pickle
 import re
 
-import config
 import defaults
 
 import ulgmodel
 
+config = ulgmodel.import_config()
+
 ### ULG cron script
 
 SESSION_FILE_REGEX='^ulg-.*\.session$'

ulg.py

@@ -32,12 +32,13 @@ import md5
 import time
 import random
 
-import config
 import defaults
 
 import ulgmodel
 import whois
 
+config = ulgmodel.import_config()
+
 IPV4_ANNOTATE_REGEXP = '([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}(/[0-9]{1,2})?)'
 ipv4_annotate_regexp = re.compile(IPV4_ANNOTATE_REGEXP)
 

ulgmodel.py

@@ -20,6 +20,7 @@
 # Imports
 import os
 import re
+import sys
 from time import localtime, strftime
 from genshi.template import TemplateLoader
 from genshi.core import Markup
@@ -49,6 +50,14 @@ def debug(message):
     if(defaults.debug):
         log('DEBUG:' + message)
 
+def import_config():
+    path, filename = os.path.split(defaults.config_file)
+    filename, ext = os.path.splitext(filename)
+    sys.path.append(path)
+    module = __import__(filename)
+    reload(module)
+    del sys.path[-1]
+    return module
 
 def annotateAS(asn):
     return asn+' | '+whois.lookup_as_name(asn)