Made IsValidIP method check that each ip octet is an integer < 255.

Added checks to the network entry settings menu to make sure that all the settings are valid.
Fixed global dns being set to True whenever static IP address were enabled for wireless networks.

gui.py

@@ -519,6 +519,8 @@ class NetworkEntry(gtk.Expander):
 
             if stringToNone(netmask.get_text()) == None: # Make sure the netmask is blank
                         netmask.set_text('255.255.255.0') # Fill in the most common one
+        elif ipAddress != "":
+            misc.error(None, "Invalid IP Address Entered.")
 
     def resetStaticCheckboxes(self):
         # Enable the right stuff
@@ -1314,7 +1316,28 @@ class appGui:
 
     def save_settings(self, type, networkid, networkentry):
         entry = networkentry.expander
+        entlist = []
+        
+        # First make sure all the Addresses entered are valid.
+        if entry.checkboxStaticIP.get_active():
+            for ent in [entry.txtIP, entry.txtNetmask, entry.txtGateway]:
+                entlist.append(ent)
+                
+        if entry.checkboxStaticDNS.get_active() and \
+           not entry.checkboxGlobalDNS.get_active():
+            entlist.append(entry.txtDNS1)
+            # Only append addition dns entries if they're entered.
+            for ent in [entry.txtDNS2, entry.txtDNS3]:
+                if ent.get_text() != "":
+                    entlist.append(ent)
+                    
+        for lblent in entlist:
+            if not misc.IsValidIP(lblent.get_text()):
+                misc.error(self.window, "Invalid address in " +
+                           lblent.label.get_label() + " entry.")
+                return False
 
+        # Now save the settings.
         if type == "wireless":
             wireless.SetWirelessProperty(networkid, "automatic",
                                          noneToString(entry.checkboxAutoConnect.get_active()))
@@ -1381,7 +1404,7 @@ class appGui:
             if entry.checkboxStaticDNS.get_active() and \
                not entry.checkboxGlobalDNS.get_active():
                 wireless.SetWiredProperty('use_static_dns', True)
-                wireless.SetWiredProperty('use_global_dns', True)
+                wireless.SetWiredProperty('use_global_dns', False)
                 wired.SetWiredProperty("dns1", noneToString(entry.txtDNS1.get_text()))
                 wired.SetWiredProperty("dns2", noneToString(entry.txtDNS2.get_text()))
                 wired.SetWiredProperty("dns3", noneToString(entry.txtDNS3.get_text()))
@@ -1396,6 +1419,7 @@ class appGui:
                 wired.SetWiredProperty("dns3",'')
 
             config.SaveWiredNetworkProfile(entry.comboProfileNames.get_active_text())
+        return True
 
     def editAdvanced(self, widget, event, type, networkid, networkentry):
         dialog = gtk.Dialog(title=language['advanced_settings'],
@@ -1405,17 +1429,28 @@ class appGui:
                                                           gtk.RESPONSE_REJECT))
         dialog.vbox.pack_start(networkentry.expander.vboxAdvanced)
         dialog.show_all()
-        result = dialog.run()
+        while True:
-        if result == gtk.RESPONSE_ACCEPT:
+            if self.run_advanced(dialog, networkid, networkentry):
-            self.save_settings(type, networkid, networkentry)
+                break
         dialog.vbox.remove(networkentry.expander.vboxAdvanced)
         dialog.destroy()
+        
+    def run_advanced(self, dialog, networkid, networkentry):
+        result = dialog.run()
+        if result == gtk.RESPONSE_ACCEPT:
+            if self.save_settings(type, networkid, networkentry):
+                return True
+            else:
+                return False
+        return True
             
     def connect(self, widget, event, type, networkid, networkentry):
         cancelButton = self.wTree.get_widget("cancel_button")
         cancelButton.set_sensitive(True)
         
-        self.save_settings(type, networkid, networkentry)
+        if not self.save_settings(type, networkid, networkentry):
+            return False
+        
         if type == "wireless":
             wireless.ConnectWireless(networkid)
         elif type == "wired":

misc.py

@@ -1,4 +1,4 @@
-''' Misc - miscellaneous functions for wicd '''
+""" Misc - miscellaneous functions for wicd """
 
 #
 #        Copyright (C) 2007 Adam Blackburn
@@ -23,13 +23,14 @@ import locale
 import gettext
 import time
 import sys
+import gtk
 from subprocess import *
 
 if __name__ == '__main__':
     wpath.chdir(__file__)
 
 def Run(cmd, include_stderr=False, return_pipe=False):
-    ''' Run a command 
+    """ Run a command.
 
     Runs the given command, returning either the output
     of the program, or a pipe to read output from.
@@ -43,7 +44,7 @@ def Run(cmd, include_stderr=False, return_pipe=False):
                   false, all that will be returned is
                   one output string from the command.
 
-    '''
+    """
     
     cmd = to_unicode(str(cmd))
     if include_stderr:
@@ -61,16 +62,18 @@ def Run(cmd, include_stderr=False, return_pipe=False):
         return f.communicate()[0]
 
 def IsValidIP(ip):
-    ''' Make sure an entered IP is valid '''
+    """ Make sure an entered IP is valid """
-    if ip != None: # Make sure there is an IP
+    if ip != None:
-        if ip.count('.') == 3: # Make sure there are 3 periods
+        if ip.count('.') == 3:
-            ipNumbers = ip.split('.') # Split it up
+            ipNumbers = ip.split('.')
-            if not '' in ipNumbers: # Make sure the ip was split into 3 groups
+            for number in ipNumbers:
+                if not number.isdigit() or int(number) > 255:
+                    return False
                 return ipNumbers
     return False
 
 def PromptToStartDaemon():
-    ''' Prompt the user to start the daemon '''
+    """ Prompt the user to start the daemon """
     daemonloc = wpath.bin + 'launchdaemon.sh'
     gksudo_args = ['gksudo', '--message', 
                    'Wicd needs to access your computer\'s network cards.',
@@ -78,7 +81,7 @@ def PromptToStartDaemon():
     os.spawnvpe(os.P_WAIT, 'gksudo', gksudo_args, os.environ)
 
 def RunRegex(regex, string):
-    ''' runs a regex search on a string '''
+    """ runs a regex search on a string """
     m = regex.search(string)
     if m:
         return m.groups()[0]
@@ -90,15 +93,15 @@ def log(text):
     log.write(text + "\n")
 
 def WriteLine(my_file, text):
-    ''' write a line to a file '''
+    """ write a line to a file """
     my_file.write(text + "\n")
 
 def ExecuteScript(script):
-    ''' Execute a command '''
+    """ Execute a command """
     os.system(script + ' &')
 
 def ReadFile(filename):
-    ''' read in a file and return it's contents as a string '''
+    """ read in a file and return it's contents as a string """
     if not os.path.exists(filename):
         return None
     my_file = open(filename,'r')
@@ -115,7 +118,7 @@ def to_bool(var):
     return var
 
 def Noneify(variable):
-    ''' convert string types to either None or booleans'''
+    """ Convert string types to either None or booleans"""
     #set string Nones to real Nones
     if variable == "None" or variable == "":
         return None
@@ -133,12 +136,12 @@ def Noneify(variable):
     return variable
 
 def ParseEncryption(network):
-    ''' Parse through an encryption template file
+    """ Parse through an encryption template file
 
     Parses an encryption template, reading in a network's info
     and creating a config file for it
 
-    '''
+    """
     #list = open("encryption/templates/active","r")
     #types = list.readlines()
     #for i in types:
@@ -171,13 +174,13 @@ def ParseEncryption(network):
     file.close()
 
 def LoadEncryptionMethods():
-    ''' Load encryption methods from configuration files
+    """ Load encryption methods from configuration files
 
     Loads all the encryption methods from the template files
     in /encryption/templates into a data structure.  To be
     loaded, the template must be listed in the "active" file.
 
-    '''
+    """
     encryptionTypes = {}
     types = open("encryption/templates/active","r")
     enctypes = types.readlines()
@@ -213,11 +216,12 @@ def LoadEncryptionMethods():
     return encryptionTypes
 
 def noneToString(text):
-    ''' Convert None, "None", or "" to string type "None"
+    """ Convert None, "None", or "" to string type "None"
 
-    used for putting text in a text box if the value to put in is 'None' the box will be blank
+    Used for putting text in a text box.  If the value to put in is 'None',
+    the box will be blank.
 
-    '''
+    """
     if text == None or text == "None" or text == "":
         return "None"
     else:

wicd.py

@@ -44,6 +44,11 @@ import dbus.service
 import getopt
 import time
 
+# Wicd specific imports
+import wpath
+import misc
+import gui
+
 # Import egg.trayicon if we're using an older gtk version
 if not (gtk.gtk_version[0] >= 2 and gtk.gtk_version[1] >= 10):
     import egg.trayicon
@@ -54,11 +59,6 @@ else:
 if getattr(dbus, 'version', (0, 0, 0)) >= (0, 41, 0):
     import dbus.glib
 
-# Wicd specific imports
-import wpath
-import misc
-import gui
-
 if sys.platform == 'linux2':
     # Set process name.  Only works on Linux >= 2.1.57.
     try: