Allow custom server backend encoding

Server framework does not support encoding of native Python type
values stored in Param classes and sub-classes. When backend (LDAP)
value encoding differs from Python type value representation user
has to has to hard-code the encoders in his processing.

This patch introduces a method Param.encode which is used in server
context to encode native Python Param values. The new encode method
is used for Bool parameter to convert native Python bool type value
(True, False) to LDAP value ("TRUE", "FALSE").

https://fedorahosted.org/freeipa/ticket/2039

1 files changed, 10 insertions, 0 deletions

diff --git a/ipalib/frontend.py b/ipalib/frontend.py
index 61e7f493f..851de4379 100644
--- a/ipalib/frontend.py
+++ b/ipalib/frontend.py
@@ -428,6 +428,8 @@ class Command(HasParam):
         if not self.api.env.in_server and 'version' not in params:
             params['version'] = API_VERSION
         self.validate(**params)
+        if self.api.env.in_server:
+            params = self.encode(**params)
         (args, options) = self.params_2_args_options(**params)
         ret = self.run(*args, **options)
         if (
@@ -648,6 +650,14 @@ class Command(HasParam):
             (k, self.params[k].convert(v)) for (k, v) in kw.iteritems()
         )
 
+    def encode(self, **kw):
+        """
+        Return a dictionary of encoded values.
+        """
+        return dict(
+            (k, self.params[k].encode(v)) for (k, v) in kw.iteritems()
+        )
+
     def __convert_iter(self, kw):
         for param in self.params():
             if kw.get(param.name, None) is None: