X-Git-Url: https://git.llucax.com/software/pymin.git/blobdiff_plain/7cd50fbc836fa07396e60b41bc169649c38e3153..12b7d86229346c68e653a51d1e6598a5973901ba:/services/dns/__init__.py

diff --git a/services/dns/__init__.py b/services/dns/__init__.py
index 92c3a66..23046c5 100644
--- a/services/dns/__init__.py
+++ b/services/dns/__init__.py
@@ -1,427 +1,84 @@
 # vim: set encoding=utf-8 et sw=4 sts=4 :
 
-from mako.template import Template
-from mako.runtime import Context
+# TODO COMMENT
 from os import path
 from os import unlink
+import logging ; log = logging.getLogger('pymin.services.dns')
 
-try:
-    import cPickle as pickle
-except ImportError:
-    import pickle
-try:
-    from dispatcher import handler
-except ImportError:
-    def handler(f): return f # NOP for testing
+from pymin.seqtools import Sequence
+from pymin.dispatcher import handler, HandlerError, Handler
+from pymin.service.util import Restorable, ConfigWriter, InitdHandler, \
+                               TransactionalHandler, ParametersHandler, \
+                               DictComposedSubHandler, DictSubHandler, call
 
-__ALL__ = ('DnsHandler',)
+__all__ = ('DnsHandler', 'get_service')
 
-pickle_ext = '.pkl'
 
-pickle_vars = 'vars'
-pickle_zones = 'zones'
+def get_service(config):
+    return DnsHandler(config.dns.pickle_dir, config.dns.config_dir)
 
-config_filename = 'named.conf'
-zone_filename = 'zoneX.zone'
-zone_filename_ext = '.zone'
 
-template_dir = path.join(path.dirname(__file__), 'templates')
-
-
-class Error(RuntimeError):
-    r"""
-    Error(command) -> Error instance :: Base DhcpHandler exception class.
-
-    All exceptions raised by the DhcpHandler inherits from this one, so you can
-    easily catch any DhcpHandler exception.
-
-    message - A descriptive error message.
-    """
-
-    def __init__(self, message):
-        r"Initialize the Error object. See class documentation for more info."
-        self.message = message
-
-    def __str__(self):
-        return self.message
-
-class ZoneError(Error, KeyError):
-    r"""
-    ZoneError(hostname) -> ZoneError instance
-
-    This is the base exception for all zone related errors.
-    """
-
-    def __init__(self, zonename):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Zone error: "%s"' % zonename
-
-
-class ZoneNotFoundError(ZoneError):
-    r"""
-    ZoneNotFoundError(zonename) -> ZoneNotFoundError instance
-
-    This exception is raised when trying to operate on a zonename that doesn't
-    exists.
-    """
-
-    def __init__(self, hostname):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'zone not found: "%s"' % hostname
-
-
-class ZoneAlreadyExistsError(ZoneError):
-    r"""
-    ZoneAlreadyExistsError(hostname) -> ZoneAlreadyExistsError instance
-
-    This exception is raised when trying to add a zonename that already exists.
-    """
-
-    def __init__(self, zonename):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Zone already exists: "%s"' % zonename
-
-
-class HostError(Error, KeyError):
-    r"""
-    HostError(hostname) -> HostError instance
-
-    This is the base exception for all host related errors.
-    """
-
-    def __init__(self, hostname):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Host error: "%s"' % hostname
-
-class HostAlreadyExistsError(HostError):
-    r"""
-    HostAlreadyExistsError(hostname) -> HostAlreadyExistsError instance
-
-    This exception is raised when trying to add a hostname that already exists.
-    """
-
-    def __init__(self, hostname):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Host already exists: "%s"' % hostname
-
-class HostNotFoundError(HostError):
-    r"""
-    HostNotFoundError(hostname) -> HostNotFoundError instance
-
-    This exception is raised when trying to operate on a hostname that doesn't
-    exists.
-    """
-
-    def __init__(self, hostname):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Host not found: "%s"' % hostname
-
-
-class MailExchangeError(Error, KeyError):
-    r"""
-    HostError(hostname) -> HostError instance
-
-    This is the base exception for all host related errors.
-    """
-
-    def __init__(self, mx):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Mail Exchange error: "%s"' % mx
-
-class MailExchangeAlreadyExistsError(MailExchangeError):
-    r"""
-    HostAlreadyExistsError(hostname) -> HostAlreadyExistsError instance
-
-    This exception is raised when trying to add a hostname that already exists.
-    """
-
-    def __init__(self, mx):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Mail Exchange already exists: "%s"' % mx
-
-class MailExchangeNotFoundError(MailExchangeError):
-    r"""
-    HostNotFoundError(hostname) -> HostNotFoundError instance
-
-    This exception is raised when trying to operate on a hostname that doesn't
-    exists.
-    """
-
-    def __init__(self, mx):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Mail Exchange not found: "%s"' % mx
-
-
-
-class NameServerError(Error, KeyError):
-    r"""
-    HostError(hostname) -> HostError instance
-
-    This is the base exception for all host related errors.
-    """
-
-    def __init__(self, ns):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Name Server error: "%s"' % ns
-
-class NameServerAlreadyExistsError(NameServerError):
-    r"""
-    HostAlreadyExistsError(hostname) -> HostAlreadyExistsError instance
-
-    This exception is raised when trying to add a hostname that already exists.
-    """
-
-    def __init__(self, ns):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Mail Exchange already exists: "%s"' % ns
-
-class NameServerNotFoundError(NameServerError):
-    r"""
-    HostNotFoundError(hostname) -> HostNotFoundError instance
-
-    This exception is raised when trying to operate on a hostname that doesn't
-    exists.
-    """
-
-    def __init__(self, ns):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Mail Exchange not found: "%s"' % ns
-
-
-class ParameterError(Error, KeyError):
-    r"""
-    ParameterError(paramname) -> ParameterError instance
-
-    This is the base exception for all DhcpHandler parameters related errors.
-    """
-
-    def __init__(self, paramname):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Parameter error: "%s"' % paramname
-
-class ParameterNotFoundError(ParameterError):
-    r"""
-    ParameterNotFoundError(hostname) -> ParameterNotFoundError instance
-
-    This exception is raised when trying to operate on a parameter that doesn't
-    exists.
-    """
-
-    def __init__(self, paramname):
-        r"Initialize the object. See class documentation for more info."
-        self.message = 'Parameter not found: "%s"' % paramname
-
-class Host:
+class Host(Sequence):
     def __init__(self, name, ip):
         self.name = name
         self.ip = ip
-
-class HostHandler:
-    def __init__(self,zones):
-        self.zones = zones
-
-    @handler
-    def add(self, name, hostname, ip):
-        if not name in self.zones:
-            raise ZoneNotFoundError(name)
-        if hostname in self.zones[name].hosts:
-            raise HostAlreadyExistsError(hostname)
-        self.zones[name].hosts[hostname] = Host(hostname, ip)
-        self.zones[name].mod = True
-
-    @handler
-    def update(self, name, hostname, ip):
-        if not name in self.zones:
-            raise ZoneNotFoundError(name)
-        if not hostname in self.zones[name].hosts:
-             raise HostNotFoundError(name)
-        self.zones[name].hosts[hostname].ip = ip
-        self.zones[name].mod = True
-
-    @handler
-    def delete(self, name, hostname):
-        r"delete(name) -> None :: Delete a zone from the zone list."
-        if not name in self.zones:
-            raise ZoneNotFoundError(name)
-        if not hostname in self.zones[name].hosts:
-             raise HostNotFoundError(name)
-        del self.zones[name].hosts[hostname]
-        self.zones[name].mod = True
-
-    @handler
-    def list(self):
-        r"""list() -> CSV string :: List all the hostnames.
-
-        The list is returned as a single CSV line with all the hostnames.
-        """
-        #return ','.join(self.zones)
-
-    @handler
-    def show(self):
-        r"""show() -> CSV string :: List all the complete hosts information.
-
-        The hosts are returned as a CSV list with each host in a line, like:
-        hostname,ip,mac
-        """
-        output = ''
-        for z in self.zones.values():
-            for h in z.hosts.values():
-                output += z.name + ',' + h.name + ',' + h.ip + '\n'
-        return output
-
-
-class MailExchange:
-
+    def update(self, ip=None):
+        if ip is not None: self.ip = ip
+    def as_tuple(self):
+        return (self.name, self.ip)
+
+class HostHandler(DictComposedSubHandler):
+    handler_help = u"Manage DNS hosts"
+    _comp_subhandler_cont = 'zones'
+    _comp_subhandler_attr = 'hosts'
+    _comp_subhandler_class = Host
+
+class MailExchange(Sequence):
     def __init__(self, mx, prio):
         self.mx = mx
         self.prio = prio
-
-class MailExchangeHandler:
-
-    def __init__(self, zones):
-        self.zones = zones
-
-    @handler
-    def add(self, zonename, mx, prio):
-        if not zonename in self.zones:
-            raise ZoneNotFoundError(zonename)
-        if mx in self.zones[zonename].mxs:
-            raise MailExchangeAlreadyExistsError(mx)
-        self.zones[zonename].mxs[mx] = MailExchange(mx, prio)
-        self.zones[zonename].mod = True
-
-    @handler
-    def update(self, zonename, mx, prio):
-        if not zonename in self.zones:
-            raise ZoneNotFoundError(zonename)
-        if not mx in self.zones[zonename].mxs:
-            raise MailExchangeNotFoundError(mx)
-        self.zones[zonename].mxs[mx].prio = prio
-        self.zones[zonename].mod = True
-
-    @handler
-    def delete(self, zonename, mx):
-        if not zonename in self.zones:
-            raise ZoneNotFoundError(zonename)
-        if not mx in self.zones[zonename].mxs:
-            raise MailExchangeNotFoundError(mx)
-        del self.zones[zonename].mxs[mx]
-        self.zones[zonename].mod = True
-
-    @handler
-    def list(self):
-        r"""list() -> CSV string :: List all the hostnames.
-
-        The list is returned as a single CSV line with all the hostnames.
-        """
-        return ','.join(self.zones)
-
-    @handler
-    def show(self):
-        r"""show() -> CSV string :: List all the complete hosts information.
-
-        The hosts are returned as a CSV list with each host in a line, like:
-        hostname,ip,mac
-        """
-        zones = self.zones.values()
-        return '\n'.join('%s,%s,%s' % (z.name, z.ns1, z.ns2) for z in zones)
-
-
-class NameServer:
-
+    def update(self, prio=None):
+        if prio is not None: self.prio = prio
+    def as_tuple(self):
+        return (self.mx, self.prio)
+
+class MailExchangeHandler(DictComposedSubHandler):
+    handler_help = u"Manage DNS mail exchangers (MX)"
+    _comp_subhandler_cont = 'zones'
+    _comp_subhandler_attr = 'mxs'
+    _comp_subhandler_class = MailExchange
+
+class NameServer(Sequence):
     def __init__(self, name):
         self.name = name
+    def as_tuple(self):
+        return (self.name,)
 
+class NameServerHandler(DictComposedSubHandler):
+    handler_help = u"Manage DNS name servers (NS)"
+    _comp_subhandler_cont = 'zones'
+    _comp_subhandler_attr = 'nss'
+    _comp_subhandler_class = NameServer
 
-class NameServerHandler:
-
-    def __init__(self, zones):
-        self.zones = zones
-
-    def add(self, zone, ns):
-        if not zone in self.zones:
-            raise ZoneNotFoundError(zone)
-        if ns in self.zones[zone].nss:
-            raise NameServerAlreadyExistsError(ns)
-        self.zones[zone].nss[ns] = NameServer(ns)
-        self.zones[zone].mod = True
-
-    def delete(self, zone, ns):
-        if not zone in self.zones:
-            raise ZoneNotFoundError(zone)
-        if not ns in self.zones[zone].nss:
-            raise NameServerNotFoundError(ns)
-        del self.zones[zone].nss[ns]
-        self.zones[zone].mod = True
-
-class Zone:
-    def __init__(self, name, ns1, ns2):
+class Zone(Sequence):
+    def __init__(self, name):
         self.name = name
-        self.ns1 = ns1
-        self.ns2 = ns2
         self.hosts = dict()
         self.mxs = dict()
         self.nss = dict()
-        self.mod = False
-        self.dele = False
-
-class ZoneHandler:
-
-    r"""ZoneHandler(zones) -> ZoneHandler instance :: Handle a list of zones.
-
-    This class is a helper for DnsHandler to do all the work related to zone
-    administration.
-
-    zones - A dictionary with string keys (zone name) and Zone instances values.
-    """
-    def __init__(self, zones):
-        self.zones = zones
-
-    @handler
-    def add(self, name, ns1, ns2=None):
-        if name in self.zones:
-            raise ZoneAlreadyExistsError(name)
-        self.zones[name] = Zone(name, ns1, ns2)
-        self.zones[name].mod = True
-
-    @handler
-    def update(self, name, ns1=None, ns2=None):
-        if not name in self.zones:
-            raise ZoneNotFoundError(name)
-        if self.zones[name].dele:
-            raise ZoneNotFoundError(name)
-        if ns1 is not None:
-            self.zones[name].ns1 = ns1
-        if ns2 is not None:
-            self.zones[name].ns2 = ns2
-        self.zones[name].mod = True
-
-    @handler
-    def delete(self, name):
-        r"delete(name) -> None :: Delete a zone from the zone list."
-        if not name in self.zones:
-            raise ZoneNotFoundError(name)
-        self.zones[name].dele = True
-
-    @handler
-    def list(self):
-        r"""list() -> CSV string :: List all the hostnames.
-
-        The list is returned as a single CSV line with all the hostnames.
-        """
-        return ','.join(self.zones)
-
-    @handler
-    def show(self):
-        r"""show() -> CSV string :: List all the complete hosts information.
-
-        The hosts are returned as a CSV list with each host in a line, like:
-        hostname,ip,mac
-        """
-        zones = self.zones.values()
-        return '\n'.join('%s,%s,%s' % (z.name, z.ns1, z.ns2) for z in zones)
-
-class DnsHandler:
+        self._add = False
+        self._update = False
+        self._delete = False
+    def as_tuple(self):
+        return (self.name, self.hosts, self.mxs, self.nss)
+
+class ZoneHandler(DictSubHandler):
+    handler_help = u"Manage DNS zones"
+    _cont_subhandler_attr = 'zones'
+    _cont_subhandler_class = Zone
+
+class DnsHandler(Restorable, ConfigWriter, InitdHandler, TransactionalHandler,
+                 ParametersHandler):
     r"""DnsHandler([pickle_dir[, config_dir]]) -> DnsHandler instance.
 
     Handles DNS service commands for the dns program.
@@ -433,183 +90,123 @@ class DnsHandler:
     Both defaults to the current working directory.
     """
 
-    def __init__(self, pickle_dir='.', config_dir='.'):
-        r"Initialize DnsHandler object, see class documentation for details."
-        self.pickle_dir = pickle_dir
-        self.config_dir = config_dir
-        c_filename = path.join(template_dir, config_filename)
-        z_filename = path.join(template_dir, zone_filename)
-        self.config_template = Template(filename=c_filename)
-        self.zone_template = Template(filename=z_filename)
-        try :
-            self._load()
-        except IOError:
-            self.zones = dict()
-            self.vars = dict(
+    handler_help = u"Manage DNS service"
+
+    _initd_name = 'named'
+
+    _persistent_attrs = ('params', 'zones')
+
+    _restorable_defaults = dict(
+            zones = dict(),
+            params  = dict(
                 isp_dns1 = '',
                 isp_dns2 = '',
                 bind_addr1 = '',
                 bind_addr2 = ''
-            )
-
-        self.host = HostHandler(self.zones)
-        self.zone = ZoneHandler(self.zones)
-        self.mx = MailExchangeHandler(self.zones)
-        self.ns = NameServerHandler(self.zones)
-
-    @handler
-    def set(self, param, value):
-        r"set(param, value) -> None :: Set a DHCP parameter."
-        if not param in self.vars:
-            raise ParameterNotFoundError(param)
-        self.vars[param] = value
-
-    @handler
-    def get(self, param):
-        r"get(param) -> None :: Get a DHCP parameter."
-        if not param in self.vars:
-            raise ParameterNotFoundError(param)
-        return self.vars[param]
-
-    @handler
-    def list(self):
-        r"""list() -> CSV string :: List all the parameter names.
-
-        The list is returned as a single CSV line with all the names.
-        """
-        return ','.join(self.vars)
-
-    @handler
-    def show(self):
-        r"""show() -> CSV string :: List all the parameters (with their values).
-
-        The parameters are returned as a CSV list with each parameter in a
-        line, like:
-        name,value
-        """
-        return '\n'.join(('%s,%s' % (k, v) for (k, v) in self.vars.items()))
-
-    @handler
-    def start(self):
-        r"start() -> None :: Start the DNS service."
-        #esto seria para poner en una interfaz
-        #y seria el hook para arrancar el servicio
-        pass
-
-    @handler
-    def stop(self):
-        r"stop() -> None :: Stop the DNS service."
-        #esto seria para poner en una interfaz
-        #y seria el hook para arrancar el servicio
-        pass
-
-    @handler
-    def restart(self):
-        r"restart() -> None :: Restart the DNS service."
-        #esto seria para poner en una interfaz
-        #y seria el hook para arrancar el servicio
-        pass
-
-    @handler
-    def reload(self):
-        r"reload() -> None :: Reload the configuration of the DNS service."
-        #esto seria para poner en una interfaz
-        #y seria el hook para arrancar el servicio
-        pass
-
-    @handler
-    def commit(self):
-        r"commit() -> None :: Commit the changes and reload the DNS service."
-        #esto seria para poner en una interfaz
-        #y seria que hace el pickle deberia llamarse
-        #al hacerse un commit
-        self._dump()
-        self._write_config()
-        self.reload()
-
-    @handler
-    def rollback(self):
-        r"rollback() -> None :: Discard the changes not yet commited."
-        self._load()
-
-    def _dump(self):
-        r"_dump() -> None :: Dump all persistent data to pickle files."
-        # XXX podría ir en una clase base
-        self._dump_var(self.vars, pickle_vars)
-        self._dump_var(self.zones, pickle_zones)
-
-    def _load(self):
-        r"_load() -> None :: Load all persistent data from pickle files."
-        # XXX podría ir en una clase base
-        self.vars = self._load_var(pickle_vars)
-        self.zones = self._load_var(pickle_zones)
-
-    def _pickle_filename(self, name):
-        r"_pickle_filename() -> string :: Construct a pickle filename."
-        # XXX podría ir en una clase base
-        return path.join(self.pickle_dir, name) + pickle_ext
-
-    def _dump_var(self, var, name):
-        r"_dump_var() -> None :: Dump a especific variable to a pickle file."
-        # XXX podría ir en una clase base
-        pkl_file = file(self._pickle_filename(name), 'wb')
-        pickle.dump(var, pkl_file, 2)
-        pkl_file.close()
-
-    def _load_var(self, name):
-        r"_load_var() -> object :: Load a especific pickle file."
-        # XXX podría ir en una clase base
-        return pickle.load(file(self._pickle_filename(name)))
+            ),
+    )
+
+    _config_writer_files = ('named.conf', 'zoneX.zone')
+    _config_writer_tpl_dir = path.join(path.dirname(__file__), 'templates')
+
+    def __init__(self, pickle_dir='.', config_dir='.'):
+        r"Initialize DnsHandler object, see class documentation for details."
+        log.debug(u'DnsHandler(%r, %r)', pickle_dir, config_dir)
+        self._persistent_dir = pickle_dir
+        self._config_writer_cfg_dir = config_dir
+        self._update = False
+        self._config_build_templates()
+        InitdHandler.__init__(self)
+        self.host = HostHandler(self)
+        self.zone = ZoneHandler(self)
+        self.mx = MailExchangeHandler(self)
+        self.ns = NameServerHandler(self)
+
+    def _zone_filename(self, zone):
+        return zone.name + '.zone'
+
+    def _get_config_vars(self, config_file):
+        return dict(zones=self.zones.values(), **self.params)
 
     def _write_config(self):
         r"_write_config() -> None :: Generate all the configuration files."
-        # XXX podría ir en una clase base, ver como generalizar variables a
-        # reemplazar en la template
-        #archivos de zona
+        log.debug(u'DnsHandler._write_config()')
         delete_zones = list()
         for a_zone in self.zones.values():
-            if a_zone.mod:
-                # TODO freeze de la zona
-                zone_out_file = file(path.join(self.config_dir, a_zone.name + zone_filename_ext), 'w')
-                ctx = Context(
-                    zone_out_file,
+            log.debug(u'DnsHandler._write_config: processing zone %s', a_zone)
+            if a_zone._update or a_zone._add:
+                if not a_zone._add and self._service_running:
+                    log.debug(u'DnsHandler._write_config: zone updated and '
+                                u'the service is running, freezing zone')
+                    call(('rndc', 'freeze', a_zone.name))
+                vars = dict(
                     zone = a_zone,
                     hosts = a_zone.hosts.values(),
                     mxs = a_zone.mxs.values(),
                     nss = a_zone.nss.values()
-                    )
-                self.zone_template.render_context(ctx)
-                zone_out_file.close()
-                a_zone.mod = False
-                # TODO unfreeze de la zona
-            if a_zone.dele:
+                )
+                self._write_single_config('zoneX.zone',
+                                            self._zone_filename(a_zone), vars)
+                a_zone._update = False
+                if not a_zone._add and self._service_running:
+                    log.debug(u'DnsHandler._write_config: unfreezing zone')
+                    call(('rndc', 'thaw', a_zone.name))
+                else :
+                    self._update = True
+                    a_zone._add = False
+            if a_zone._delete:
                 #borro el archivo .zone
+                log.debug(u'DnsHandler._write_config: zone deleted, removing '
+                            u'the file %r', self._zone_filename(a_zone))
                 try:
-                    unlink(path.join(self.config_dir, a_zone.name + zone_filename_ext))
+                    self._update = True
+                    unlink(self._zone_filename(a_zone))
                 except OSError:
                     #la excepcion pude darse en caso que haga un add de una zona y
                     #luego el del, como no hice commit, no se crea el archivo
+                    log.debug(u'DnsHandler._write_config: file not found')
                     pass
                 delete_zones.append(a_zone.name)
         #borro las zonas
         for z in delete_zones:
             del self.zones[z]
         #archivo general
-        cfg_out_file = file(path.join(self.config_dir, config_filename), 'w')
-        ctx = Context(cfg_out_file, zones=self.zones.values(), **self.vars)
-        self.config_template.render_context(ctx)
-        cfg_out_file.close()
+        if self._update:
+            self._write_single_config('named.conf')
+            self._update = False
+            return False # Do reload
+        return True # we don't need to reload
+
+    # HACK!!!!
+    def handle_timer(self):
+        log.debug(u'DnsHandler.handle_timer()')
+        import subprocess
+        p = subprocess.Popen(('pgrep', '-f', '/usr/sbin/named'),
+                                stdout=subprocess.PIPE)
+        pid = p.communicate()[0]
+        if p.returncode == 0 and len(pid) > 0:
+            log.debug(u'DnsHandler.handle_timer: pid present, running')
+            self._service_running = True
+        else:
+            log.debug(u'DnsHandler.handle_timer: pid absent, NOT running')
+            self._service_running = False
 
 
 
 if __name__ == '__main__':
 
+    logging.basicConfig(
+        level   = logging.DEBUG,
+        format  = '%(asctime)s %(levelname)-8s %(message)s',
+        datefmt = '%H:%M:%S',
+    )
+
     dns = DnsHandler();
 
     dns.set('isp_dns1','la_garcha.com')
     dns.set('bind_addr1','localhost')
-    dns.zone.add('zona_loca.com','ns1,dom.com','ns2.dominio.com')
-    dns.zone.update('zona_loca.com','ns1.dominio.com')
+    dns.zone.add('zona_loca.com')
+    #dns.zone.update('zona_loca.com','ns1.dominio.com')
 
     dns.host.add('zona_loca.com','hostname_loco','192.168.0.23')
     dns.host.update('zona_loca.com','hostname_loco','192.168.0.66')
@@ -632,7 +229,7 @@ if __name__ == '__main__':
     dns.ns.add('zona_loca.com','ns3.jua.com')
     dns.ns.delete('zona_loca.com','ns3.jua.com')
 
-    dns.zone.add('zona_oscura','ns1.lala.com')
+    dns.zone.add('zona_oscura')
 
     dns.host.add('zona_oscura','hostname_a','192.168.0.24')
     dns.host.add('zona_oscura','hostname_b','192.168.0.25')
@@ -642,54 +239,57 @@ if __name__ == '__main__':
 
     dns.commit()
 
-    print 'ZONAS :'
-    print dns.zone.show() + '\n'
-    print 'HOSTS :'
-    print dns.host.show()
+    print 'ZONAS :', dns.zone.show()
+    for z in dns.zones:
+        print 'HOSTS from', z, ':', dns.host.show(z)
 
     #test zone errors
-    try:
-        dns.zone.update('zone-sarasa','lalal')
-    except ZoneNotFoundError, inst:
-        print 'Error: ', inst
+    #try:
+    #    dns.zone.update('zone-sarasa','lalal')
+    #except ZoneNotFoundError, inst:
+    #    print 'Error: ', inst
+
+    from pymin.services.util import ItemNotFoundError, ItemAlreadyExistsError, \
+                                    ContainerNotFoundError
 
     try:
         dns.zone.delete('zone-sarasa')
-    except ZoneNotFoundError, inst:
+    except ItemNotFoundError, inst:
         print 'Error: ', inst
 
-    try:
-        dns.zone.add('zona_loca.com','ns1.dom.com','ns2.dom.com')
-    except ZoneAlreadyExistsError, inst:
-        print 'Error: ', inst
+    #try:
+    #    dns.zone.add('zona_loca.com','ns1.dom.com','ns2.dom.com')
+    #except ZoneAlreadyExistsError, inst:
+    #    print 'Error: ', inst
+
 
     #test hosts errors
     try:
         dns.host.update('zone-sarasa','kuak','192.68')
-    except ZoneNotFoundError, inst:
+    except ContainerNotFoundError, inst:
         print 'Error: ', inst
 
     try:
         dns.host.update('zona_loca.com','kuak','192.68')
-    except HostNotFoundError, inst:
+    except ItemNotFoundError, inst:
         print 'Error: ', inst
 
     try:
         dns.host.delete('zone-sarasa','lala')
-    except ZoneNotFoundError, inst:
+    except ContainerNotFoundError, inst:
         print 'Error: ', inst
 
     try:
         dns.host.delete('zona_loca.com','lala')
-    except HostNotFoundError, inst:
+    except ItemNotFoundError, inst:
         print 'Error: ', inst
 
     try:
         dns.host.add('zona','hostname_loco','192.168.0.23')
-    except ZoneNotFoundError, inst:
+    except ContainerNotFoundError, inst:
         print 'Error: ', inst
 
     try:
         dns.host.add('zona_loca.com','hostname_loco','192.168.0.23')
-    except HostAlreadyExistsError, inst:
+    except ItemAlreadyExistsError, inst:
         print 'Error: ', inst