--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wibble/client/ServerProxy.py	Tue Aug 30 22:19:48 2011 +0100
@@ -0,0 +1,172 @@
+#!/usr/bin/env python3
+from uuid import uuid4
+from urllib.parse import urlparse
+import json
+import http.client
+import copy
+import socket
+import hashlib
+
+class _Method(object):
+    def __init__(self, call, name, username=None, password=None):
+        self.call = call
+        self.name = name
+        self._username = username
+        self._password = password
+    
+    def __call__(self, *args, **kwargs):
+        request = {}
+        request['id'] = str(uuid4())
+        request['method'] = self.name
+
+        if len(kwargs) is not 0:
+            params = copy.copy(kwargs)
+            index = 0
+            for arg in args:
+                params[str(index)] = arg
+                index = index + 1
+        elif len(args) is not 0:
+            params = copy.copy(args)
+        else:
+            params = None
+        request['params'] = params
+
+        if self._username is not None:
+            request['username'] = self._username
+        if self._password is not None:
+            request['password'] = hashlib.md5(self._password.encode()).hexdigest()
+
+        resp = self.call(json.dumps(request))
+        if resp is not None and resp['error'] is None and resp['id'] == request['id']:
+            return resp['result']
+        else:
+            raise Exception('This is not supposed to happen -- btc') ########
+
+    def __getattr__(self, name):
+        return _Method(self.call, "%s.%s" % (self.name, name), self._username, self._password)
+        
+class _JSONRPCTransport(object):
+    headers = {'Content-Type':'application/json',
+               'Accept':'application/json'}
+
+    def __init__(self, uri, proxy_uri=None, user_agent=None):
+        self.headers['User-Agent'] = user_agent if user_agent is not None else 'jsonrpclib'
+        if proxy_uri is not None:
+            self.connection_url = urlparse(proxy_uri)
+            self.request_path = uri
+        else:
+            self.connection_url = urlparse(uri)
+            self.request_path = self.connection_url.path
+            
+    def request(self, request_body):
+        if self.connection_url.scheme == 'http':
+            if self.connection_url.port is None:
+                port = 80
+            else:
+                port = self.connection_url.port
+            connection = http.client.HTTPConnection(self.connection_url.hostname+':'+str(port))
+        elif self.connection_url.scheme == 'https':
+            if self.connection_url.port is None:
+                port = 443
+            else:
+                port = self.connection_url.port
+            connection = http.client.HTTPSConnection(self.connection_url.hostname+':'+str(port))
+        else:
+            raise Exception('unsupported transport')
+
+        connection.request('POST', self.request_path, body=request_body, headers=self.headers)
+        return connection.getresponse()
+
+class BadRequestException(Exception):
+    """HTTP 400 - Bad Request"""
+    def __init__(self):
+        Exception.__init__(self,'HTTP 400 - Bad Request')
+
+class UnauthorisedException(Exception):
+    """HTTP 401 - Unauthorised"""
+    def __init__(self):
+        Exception.__init__(self,'HTTP 401 - Unauthorised')
+
+class ForbiddenException(Exception):
+    """HTTP 403 - Forbidden"""
+    def __init__(self):
+        Exception.__init__(self,'HTTP 403 - Forbidden')
+
+class NotFoundException(Exception):
+    """HTTP 404 - Not Found"""
+    def __init__(self):
+        Exception.__init__(self,'HTTP 404 - Not Found')
+
+class NetworkSocketException(Exception):
+    def __init__(self):
+        Exception.__init__(self,'Network socket exception')
+
+class BadGatewayException(Exception):
+    """HTTP 502 - Bad Gateway"""
+    def __init__(self):
+        Exception.__init__(self,'HTTP 502 - Bad Gateway')
+
+class ServerProxy(object):
+    def __init__(self, uri=None, transport=None, proxy_uri=None, user_agent=None, username=None, password=None):
+        if uri is None and transport is None:
+            raise Exception('either uri or transport needs to be specified')
+
+        if transport is None:
+            transport = _JSONRPCTransport(uri, proxy_uri=proxy_uri, user_agent=user_agent)
+        self.__transport = transport
+        self._username = username
+        self._password = password
+
+    def __request(self, request):
+        # call a method on the remote server
+        try:
+            response = self.__transport.request(request)
+        except socket.error:
+            raise NetworkSocketException
+        if response.status == 200:
+          return json.loads(response.read().decode())
+        elif response.status == 400:
+            raise BadRequestException
+        elif response.status == 401:
+            raise UnauthorisedException
+        elif response.status == 403:
+            raise ForbiddenException
+        elif response.status == 404:
+            raise NotFoundException
+        elif response.status == 500:
+            msg = json.loads(response.read().decode())
+            raise Exception('JSONRPCError\n%s'%msg['error']['error'])
+        elif response.status == 502:
+            raise BadGatewayException
+        else:
+            raise Exception('HTTP Status %s'%response.status)
+
+    def __repr__(self):
+        return (
+            "<ServerProxy for %s%s>" %
+            (self.__host, self.__handler)
+            )
+
+    __str__ = __repr__
+
+    def __getattr__(self, name):
+        # magic method dispatcher
+        return _Method(self.__request, name, self._username, self._password)
+
+if __name__ == '__main__':
+    #### btc fixme
+    jsonrpc_client = ServerProxy('http://localhost:1337/', username='testuser', password='', user_agent='Py3NotInternetExploiter')
+    #jsonrpc_client = ServerProxy('https://www.croston.org/test/index.py',
+    #                             username='testuser',
+    #                             password='',
+    #                             user_agent='Py3NotInternetExploiter')
+    assert jsonrpc_client.api.mymethod() == jsonrpc_client.mymethod()
+    try:
+        print(jsonrpc_client.wibble('this should fail'))
+    except BadRequestException:
+        pass # test passed
+    else:
+       raise Exception('Test failed (calling unknown method)')
+
+    print('All tests passed')
+