The start of machine join

ipalib/plugins/join.py

@@ -0,0 +1,116 @@
+# Authors:
+#   Rob Crittenden <rcritten@redhat.com>
+#
+# Copyright (C) 2009  Red Hat
+# see file 'COPYING' for use and warranty information
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2 only
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+"""
+Machine join
+"""
+
+from ipalib import api, util
+from ipalib import Command, Str, Int
+from ipalib import errors2
+import krbV
+import os, subprocess
+
+def get_realm():
+    krbctx = krbV.default_context()
+
+    return krbctx.default_realm
+
+def validate_host(ugettext, cn):
+    """
+    Require at least one dot in the hostname (to support localhost.localdomain)
+    """
+    dots = len(cn.split('.'))
+    if dots < 2:
+        return 'Fully-qualified hostname required'
+    return None
+
+class join(Command):
+    """Join an IPA domain"""
+
+    takes_args = (
+        Str('cn',
+            validate_host,
+            cli_name='hostname',
+            doc="The hostname to register as",
+            default_from=util.get_fqdn,
+            #normalizer=lamda value: value.lower(),
+        ),
+    )
+    takes_options= (
+        Str('realm',
+            doc="The IPA realm",
+            default_from=get_realm,
+        ),
+    )
+
+    def execute(self, hostname, **kw):
+        """
+        Execute the machine join operation.
+
+        Returns the entry as it will be created in LDAP.
+
+        :param hostname: The name of the host joined
+        :param kw: Keyword arguments for the other attributes.
+        """
+        assert 'cn' not in kw
+        ldap = self.api.Backend.ldap
+
+        try:
+            host = api.Command['host_show'](hostname)
+        except errors2.NotFound:
+            pass
+        else:
+            raise errors2.DuplicateEntry
+
+        return api.Command['host_add'](hostname)
+
+    def output_for_cli(self, textui, result, variables, **options):
+        textui.print_plain(result)
+
+    def run(self, *args, **options):
+        """
+        Dispatch to forward() and execute() to do work locally and on the
+        server.
+        """
+        if not self.env.in_server:
+#            if os.getegid() != 0:
+#                raise errors2.RequiresRoot
+            result = self.forward(*args, **options)
+        else:
+            return self.execute(*args, **options)
+
+        self.__get_keytab(result['krbprincipalname'])
+        import pdb
+        pdb.set_trace()
+        return "Welcome to the %s realm" % options['realm']
+
+    def __get_keytab(self, principal, stdin=None):
+        args = ["/usr/sbin/ipa-getkeytab", "-s", self.env.host, "-p", principal,"-k", "/tmp/kt"]
+        return self.__run(args, stdin)
+
+    def __run(self, args, stdin=None):
+        if stdin:
+            p = subprocess.Popen(args, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
+            stdout,stderr = p.communicate(stdin)
+        else:
+            p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
+            stdout,stderr = p.communicate()
+
+api.register(join)