From c4de45d84a95ec7e3b61780eae6a591885fc9bbf Mon Sep 17 00:00:00 2001
From: Andrew Brestick <brestick@mcs.anl.gov>
Date: Thu, 19 Jun 2008 15:11:06 +0000
Subject: Resolves ticket #541 and fixes client adding/deleting

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@4701 ce84e21b-d406-0410-9b95-82705330c041
---
 src/lib/Server/Admin/Client.py | 55 ++++++++++++++++++++++++++++++------------
 1 file changed, 40 insertions(+), 15 deletions(-)

(limited to 'src/lib/Server/Admin/Client.py')

diff --git a/src/lib/Server/Admin/Client.py b/src/lib/Server/Admin/Client.py
index 9d75a6ab3..c4f931350 100644
--- a/src/lib/Server/Admin/Client.py
+++ b/src/lib/Server/Admin/Client.py
@@ -1,50 +1,75 @@
 import lxml.etree
-
+import fcntl
 import Bcfg2.Server.Admin
 
 class Client(Bcfg2.Server.Admin.Mode):
     __shorthelp__ = 'bcfg2-admin client add <client> attr1=val1 attr2=val2\nbcfg2-admin client del <client>'
     __longhelp__ = __shorthelp__ + '\n\tCreate or delete client entries'
-    def __init__(self):
-        Bcfg2.Server.Admin.Mode.__init__(self)
+    def __init__(self, configfile):
+        Bcfg2.Server.Admin.Mode.__init__(self, configfile)
         try:
-            self.bcore = Bcfg2.Server.Core.Core(self.repo, [], ['Metadata'],
+            self.bcore = Bcfg2.Server.Core.Core(self.get_repo_path(), [], ['Metadata'],
                                                 'foo', False)
         except Bcfg2.Server.Core.CoreInitError, msg:
             self.errExit("Core load failed because %s" % msg)
-        [bcore.fam.Service() for _ in range(5)]
-        while bcore.fam.Service():
+        [self.bcore.fam.Service() for _ in range(5)]
+        while self.bcore.fam.Service():
             pass
+        self.tree = lxml.etree.parse(self.get_repo_path() + "/Metadata/clients.xml")
+        self.root = self.tree.getroot()
 
     def __call__(self, args):
         Bcfg2.Server.Admin.Mode.__call__(self, args)
         if args[0] == 'add':
             attr_d = {}
-            for i in args[1:]:
+            for i in args[2:]:
                 attr, val = i.split('=', 1)
                 if attr not in ['profile', 'uuid', 'password', 'address',
                                 'secure', 'location']:
                     print "Attribute %s unknown" % attr
                     raise SystemExit(1)
                 attr_d[attr] = val
-            self.AddClient(args[1], attr_d)
+            self.add_client(args[1], attr_d)
         elif args[0] in ['delete', 'remove', 'del', 'rm']:
-            self.DelClient(args[1])
+            self.del_client(args[1])
         else:
             print "No command specified"
             raise SystemExit(1)
-        self.tree.write(self.get_repo_path() + '/Metadata/clients.xml')        
+        client_tree = open(self.get_repo_path() + "/Metadata/clients.xml","w")
+        fd = client_tree.fileno()
+        while True:
+            try:
+                fcntl.lockf(fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
+            except IOError:
+                continue
+            else:
+                break
+        self.tree.write(client_tree)        
+        fcntl.lockf(fd, fcntl.LOCK_UN)
+        client_tree.close()
     
-    def AddClient(self, client, attrs):
+    def add_client(self, client, attrs):
         '''add a new client'''
-        # FIXME add a dup client check
         element = lxml.etree.Element("Client", name=client)
         for key, val in attrs.iteritems():
             element.set(key, val)
+        node = self.search_client(client)
+        if node != None:
+            print "Client \"%s\" already exists" % (client)
+            raise SystemExit(1)
         self.root.append(element)
 
-    def DelClient(self, client):
+    def del_client(self, client):
         '''delete an existing client'''
-        # FIXME DelClient not implemented
-        pass
+        node = self.search_client(client)
+        if node == None:
+            print "Client \"%s\" not found" % (client)
+            raise SystemExit(1)
+        self.root.remove(node)
 
+    def search_client(self, client):
+        '''find a client'''
+        for node in self.root:
+            if node.attrib["name"] == client:
+                return node
+        return None
-- 
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