Switch client to JSON-RPC

Modify ipalib.rpc to support JSON-RPC in addition to XML-RPC.
This is done by subclassing and extending xmlrpclib, because
our existing code relies on xmlrpclib internals.

The URI to use is given in the new jsonrpc_uri env variable. When
it is not given, it is generated from xmlrpc_uri by replacing
/xml with /json.

The rpc_json_uri env variable existed before, but was unused,
undocumented and not set the install scripts.
This patch removes it in favor of jsonrpc_uri (for consistency
with xmlrpc_uri).

Add the rpc_protocol env variable to control the protocol
IPA uses. rpc_protocol defaults to 'jsonrpc', but may be changed
to 'xmlrpc'.
Make backend.Executioner and tests use the backend specified by
rpc_protocol.

For compatibility with unwrap_xml, decoding JSON now gives tuples
instead of lists.

Design: http://freeipa.org/page/V3/JSON-RPC
Ticket: https://fedorahosted.org/freeipa/ticket/3299

1 files changed, 2 insertions, 2 deletions

diff --git a/ipatests/test_ipaserver/test_rpcserver.py b/ipatests/test_ipaserver/test_rpcserver.py
index bd5673844..08d773c3d 100644
--- a/ipatests/test_ipaserver/test_rpcserver.py
+++ b/ipatests/test_ipaserver/test_rpcserver.py
@@ -241,7 +241,7 @@ class test_jsonserver(PluginTester):
         assert unicode(e.error) == 'params[1] (aka options) must be a dict'
 
         # Test with valid values:
-        args = [u'jdoe']
+        args = (u'jdoe', )
         options = dict(givenname=u'John', sn='Doe')
-        d = dict(method=u'user_add', params=[args, options], id=18)
+        d = dict(method=u'user_add', params=(args, options), id=18)
         assert o.unmarshal(json.dumps(d)) == (u'user_add', args, options, 18)