bind: Replace config in setup

actions/bind

@@ -27,12 +27,41 @@ from plinth import action_utils
 
 
 CONFIG_FILE = '/etc/bind/named.conf.options'
-
+default_file = '\n'+\
-value1 = 'acl goodclients { \n   localnets;\n};\n'
+'acl goodclients {\n'+\
-value2 = '        recursion yes;\n           allow-query { goodclients; };\n\n'
+'   localnets;\n'+\
-value3 = '	// 	8.8.8.8; 8.8.4.4;\n'
+'};\n'+\
-value4 = '	//forward first;\n'
+'options {\n'+\
-value5 = '  //dnssec-enable yes;\n'
+'directory "/var/cache/bind";\n'+\
+'\n'+\
+'recursion yes;\n'+\
+'allow-query { goodclients; };\n'+\
+'\n'+\
+'// If there is a firewall between you and nameservers you want\n'+\
+'// to talk to, you may need to fix the firewall to allow multiple\n'+\
+'// ports to talk.  See http://www.kb.cert.org/vuls/id/800113\n'+\
+'\n'+\
+'// If your ISP provided one or more IP addresses for stable\n'+\
+'// nameservers, you probably want to use them as forwarders.\n'+\
+'// Uncomment the following block, and insert the addresses replacing\n'+\
+"// the all-0's placeholder.\n"+\
+'\n'+\
+'forwarders {\n'+\
+'8.8.8.8; 8.8.4.4;\n'+\
+'};\n'+\
+'forward first;\n'+\
+'\n'+\
+'dnssec-enable yes;\n'+\
+'//========================================================================\n'+\
+'// If BIND logs error messages about the root key being expired,\n'+\
+'// you will need to update your keys.  See https://www.isc.org/bind-keys\n'+\
+'//========================================================================\n'+\
+'dnssec-validation auto;\n'+\
+'\n'+\
+'auth-nxdomain no;    # conform to RFC1035\n'+\
+'listen-on-v6 { any; };\n'+\
+'};\n'+\
+'\n'
 
 def parse_arguments():
     """Return parsed command line arguments as dictionary"""
@@ -54,22 +83,9 @@ def parse_arguments():
 
 def subcommand_setup(_):
     """Setup BIND configuration."""
-    f = open(CONFIG_FILE, "r")
-    contents = f.readlines()
-    f.close()
-
-    contents.insert(0, value1)
-    contents.insert(4, value2)
-    contents.insert(15, value3)
-    contents.insert(18, value4)
-    contents.insert(20, value5)
-
     f = open(CONFIG_FILE, "w")
-    contents = "".join(contents)
+    f.write(default_file)
-    f.write(contents)
     f.close()
-    set_forwarding(True)
-    enable_dnssec(True)
     action_utils.service_restart('bind9')
 
 def subcommand_dns(arguments):

plinth/modules/bind/__init__.py

@@ -136,9 +136,9 @@ def get_default():
 
         if flag == 1:
             if '//' in line:
-                dns_set = ''
+                forwarders = ''
             else:
-                dns_set = re.sub('[;]', '', line)
+                forwarders = re.sub('[;]', '', line)
             flag = 0
         if 'forwarders {' in line:
             flag = 1
@@ -146,7 +146,7 @@ def get_default():
     conf = {
             'set_forwarding': set_forwarding,
             'enable_dnssec': enable_dnssec,
-            'dns_set': dns_set
+            'forwarders': forwarders
             }
     return conf
 

plinth/modules/bind/forms.py

@@ -39,7 +39,6 @@ class BindForm(ServiceForm):
         required=False,
         help_text=_('Enable Domain Name System Security Extensions'))
 
-    dns_set = forms.CharField(
+    forwarders = forms.CharField(
-        label=_('Set DNS server'),
         required=False,
         help_text=_('Set new DNS server'))

plinth/modules/bind/views.py

@@ -67,17 +67,17 @@ class BindServiceView(ServiceView): # pylint: disable=too-many-ancestors
 
 
 
-        if old_config['dns_set'] != data['dns_set'] and old_config['dns_set'] is not '':
+        if old_config['forwarders'] != data['forwarders'] and old_config['forwarders'] is not '':
-            if validate(data['dns_set']) is True:
+            if validate(data['forwarders']) is True:
                 actions.superuser_run(
                     'bind',
-                    ['dns', '--set', data['dns_set']])
+                    ['dns', '--set', data['forwarders']])
                 messages.success(self.request,
                                  _('DNS server configuration updated'))
             else:
                 messages.error(self.request,
                                  _('Enter a valid IPv4 or IPv6 address.'))
-        elif old_config['dns_set'] is '' and old_config['dns_set'] != data['dns_set']:
+        elif old_config['forwarders'] is '' and old_config['forwarders'] != data['forwarders']:
             messages.error(self.request,
                              _('Enable forwarding to set forwarding DNS servers'))