add check exists certificate in bootstrap

api/server/bootstrap.py

@@ -32,17 +32,38 @@ def init(cert, key, cert_path, data_path, certbase, args, port, user_name):
     except KeyError, e:
         print e
         return 1
-    if check():
+    new_serv_cert = False
+    if not check_serv_cert(cert_path):
+        print 'Generate Server Certificate'
         for step in range (2):
             args = change_args(args, step)
             create_server_cert(cert, key, cert_path, args, port)
+        new_serv_cert = True
+    else:
+        print 'Server certificate already exists'
         
+    if new_serv_cert or not check_client_cert(user_name):
+        print 'Generate Client Certificate'
         create_client_cert(cert, cert_path, data_path, certbase, user_name)
         change_owner(pwdObj, user_name)
+    else:
+        print 'Client certificate already exists'
 
-def check():
-    return True
+def check_serv_cert(cert_path):
+    if path.isfile (cert_path + '/server.crt') and path.isfile \
+                                                   (cert_path + '/server.key'):
+        return True
+    return False
 
+def check_client_cert(user_name):
+    client_cert_path = check_user_path(user_name)
+    server_host_name = socket.getfqdn()
+    if path.isfile (client_cert_path + server_host_name + '.crt') and \
+                    path.isfile (client_cert_path + server_host_name + '.key'):
+        return True
+    return False
+    
+    
 def change_args(args, step = None):
     if step == 0:
         args.host = False