596 lines
20 KiB
Python
596 lines
20 KiB
Python
|
"""Simple XML-RPC Server.
|
||
|
|
|
||
|
|
This module can be used to create simple XML-RPC servers
|
||
|
|
by creating a server and either installing functions, a
|
||
|
|
class instance, or by extending the SimpleXMLRPCServer
|
||
|
|
class.
|
||
|
|
|
||
|
|
It can also be used to handle XML-RPC requests in a CGI
|
||
|
|
environment using CGIXMLRPCRequestHandler.
|
||
|
|
|
||
|
|
A list of possible usage patterns follows:
|
||
|
|
|
||
|
|
1. Install functions:
|
||
|
|
|
||
|
|
server = SimpleXMLRPCServer(("localhost", 8000))
|
||
|
|
server.register_function(pow)
|
||
|
|
server.register_function(lambda x,y: x+y, 'add')
|
||
|
|
server.serve_forever()
|
||
|
|
|
||
|
|
2. Install an instance:
|
||
|
|
|
||
|
|
class MyFuncs:
|
||
|
|
def __init__(self):
|
||
|
|
# make all of the string functions available through
|
||
|
|
# string.func_name
|
||
|
|
import string
|
||
|
|
self.string = string
|
||
|
|
def _listMethods(self):
|
||
|
|
# implement this method so that system.listMethods
|
||
|
|
# knows to advertise the strings methods
|
||
|
|
return list_public_methods(self) + \
|
||
|
|
['string.' + method for method in list_public_methods(self.string)]
|
||
|
|
def pow(self, x, y): return pow(x, y)
|
||
|
|
def add(self, x, y) : return x + y
|
||
|
|
|
||
|
|
server = SimpleXMLRPCServer(("localhost", 8000))
|
||
|
|
server.register_introspection_functions()
|
||
|
|
server.register_instance(MyFuncs())
|
||
|
|
server.serve_forever()
|
||
|
|
|
||
|
|
3. Install an instance with custom dispatch method:
|
||
|
|
|
||
|
|
class Math:
|
||
|
|
def _listMethods(self):
|
||
|
|
# this method must be present for system.listMethods
|
||
|
|
# to work
|
||
|
|
return ['add', 'pow']
|
||
|
|
def _methodHelp(self, method):
|
||
|
|
# this method must be present for system.methodHelp
|
||
|
|
# to work
|
||
|
|
if method == 'add':
|
||
|
|
return "add(2,3) => 5"
|
||
|
|
elif method == 'pow':
|
||
|
|
return "pow(x, y[, z]) => number"
|
||
|
|
else:
|
||
|
|
# By convention, return empty
|
||
|
|
# string if no help is available
|
||
|
|
return ""
|
||
|
|
def _dispatch(self, method, params):
|
||
|
|
if method == 'pow':
|
||
|
|
return pow(*params)
|
||
|
|
elif method == 'add':
|
||
|
|
return params[0] + params[1]
|
||
|
|
else:
|
||
|
|
raise 'bad method'
|
||
|
|
|
||
|
|
server = SimpleXMLRPCServer(("localhost", 8000))
|
||
|
|
server.register_introspection_functions()
|
||
|
|
server.register_instance(Math())
|
||
|
|
server.serve_forever()
|
||
|
|
|
||
|
|
4. Subclass SimpleXMLRPCServer:
|
||
|
|
|
||
|
|
class MathServer(SimpleXMLRPCServer):
|
||
|
|
def _dispatch(self, method, params):
|
||
|
|
try:
|
||
|
|
# We are forcing the 'export_' prefix on methods that are
|
||
|
|
# callable through XML-RPC to prevent potential security
|
||
|
|
# problems
|
||
|
|
func = getattr(self, 'export_' + method)
|
||
|
|
except AttributeError:
|
||
|
|
raise Exception('method "%s" is not supported' % method)
|
||
|
|
else:
|
||
|
|
return func(*params)
|
||
|
|
|
||
|
|
def export_add(self, x, y):
|
||
|
|
return x + y
|
||
|
|
|
||
|
|
server = MathServer(("localhost", 8000))
|
||
|
|
server.serve_forever()
|
||
|
|
|
||
|
|
5. CGI script:
|
||
|
|
|
||
|
|
server = CGIXMLRPCRequestHandler()
|
||
|
|
server.register_function(pow)
|
||
|
|
server.handle_request()
|
||
|
|
"""
|
||
|
|
|
||
|
|
# Written by Brian Quinlan (brian@sweetapp.com).
|
||
|
|
# Based on code written by Fredrik Lundh.
|
||
|
|
|
||
|
|
import xmlrpclib
|
||
|
|
from xmlrpclib import Fault
|
||
|
|
import SocketServer
|
||
|
|
import BaseHTTPServer
|
||
|
|
import sys
|
||
|
|
import os
|
||
|
|
try:
|
||
|
|
import fcntl
|
||
|
|
except ImportError:
|
||
|
|
fcntl = None
|
||
|
|
|
||
|
|
def resolve_dotted_attribute(obj, attr, allow_dotted_names=True):
|
||
|
|
"""resolve_dotted_attribute(a, 'b.c.d') => a.b.c.d
|
||
|
|
|
||
|
|
Resolves a dotted attribute name to an object. Raises
|
||
|
|
an AttributeError if any attribute in the chain starts with a '_'.
|
||
|
|
|
||
|
|
If the optional allow_dotted_names argument is false, dots are not
|
||
|
|
supported and this function operates similar to getattr(obj, attr).
|
||
|
|
"""
|
||
|
|
|
||
|
|
if allow_dotted_names:
|
||
|
|
attrs = attr.split('.')
|
||
|
|
else:
|
||
|
|
attrs = [attr]
|
||
|
|
|
||
|
|
for i in attrs:
|
||
|
|
if i.startswith('_'):
|
||
|
|
raise AttributeError(
|
||
|
|
'attempt to access private attribute "%s"' % i
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
obj = getattr(obj,i)
|
||
|
|
return obj
|
||
|
|
|
||
|
|
def list_public_methods(obj):
|
||
|
|
"""Returns a list of attribute strings, found in the specified
|
||
|
|
object, which represent callable attributes"""
|
||
|
|
|
||
|
|
return [member for member in dir(obj)
|
||
|
|
if not member.startswith('_') and
|
||
|
|
callable(getattr(obj, member))]
|
||
|
|
|
||
|
|
def remove_duplicates(lst):
|
||
|
|
"""remove_duplicates([2,2,2,1,3,3]) => [3,1,2]
|
||
|
|
|
||
|
|
Returns a copy of a list without duplicates. Every list
|
||
|
|
item must be hashable and the order of the items in the
|
||
|
|
resulting list is not defined.
|
||
|
|
"""
|
||
|
|
u = {}
|
||
|
|
for x in lst:
|
||
|
|
u[x] = 1
|
||
|
|
|
||
|
|
return u.keys()
|
||
|
|
|
||
|
|
class SimpleXMLRPCDispatcher:
|
||
|
|
"""Mix-in class that dispatches XML-RPC requests.
|
||
|
|
|
||
|
|
This class is used to register XML-RPC method handlers
|
||
|
|
and then to dispatch them. There should never be any
|
||
|
|
reason to instantiate this class directly.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, allow_none, encoding):
|
||
|
|
self.funcs = {}
|
||
|
|
self.instance = None
|
||
|
|
self.allow_none = allow_none
|
||
|
|
self.encoding = encoding
|
||
|
|
|
||
|
|
def register_instance(self, instance, allow_dotted_names=False):
|
||
|
|
"""Registers an instance to respond to XML-RPC requests.
|
||
|
|
|
||
|
|
Only one instance can be installed at a time.
|
||
|
|
|
||
|
|
If the registered instance has a _dispatch method then that
|
||
|
|
method will be called with the name of the XML-RPC method and
|
||
|
|
its parameters as a tuple
|
||
|
|
e.g. instance._dispatch('add',(2,3))
|
||
|
|
|
||
|
|
If the registered instance does not have a _dispatch method
|
||
|
|
then the instance will be searched to find a matching method
|
||
|
|
and, if found, will be called. Methods beginning with an '_'
|
||
|
|
are considered private and will not be called by
|
||
|
|
SimpleXMLRPCServer.
|
||
|
|
|
||
|
|
If a registered function matches a XML-RPC request, then it
|
||
|
|
will be called instead of the registered instance.
|
||
|
|
|
||
|
|
If the optional allow_dotted_names argument is true and the
|
||
|
|
instance does not have a _dispatch method, method names
|
||
|
|
containing dots are supported and resolved, as long as none of
|
||
|
|
the name segments start with an '_'.
|
||
|
|
|
||
|
|
*** SECURITY WARNING: ***
|
||
|
|
|
||
|
|
Enabling the allow_dotted_names options allows intruders
|
||
|
|
to access your module's global variables and may allow
|
||
|
|
intruders to execute arbitrary code on your machine. Only
|
||
|
|
use this option on a secure, closed network.
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
self.instance = instance
|
||
|
|
self.allow_dotted_names = allow_dotted_names
|
||
|
|
|
||
|
|
def register_function(self, function, name = None):
|
||
|
|
"""Registers a function to respond to XML-RPC requests.
|
||
|
|
|
||
|
|
The optional name argument can be used to set a Unicode name
|
||
|
|
for the function.
|
||
|
|
"""
|
||
|
|
|
||
|
|
if name is None:
|
||
|
|
name = function.__name__
|
||
|
|
self.funcs[name] = function
|
||
|
|
|
||
|
|
def register_introspection_functions(self):
|
||
|
|
"""Registers the XML-RPC introspection methods in the system
|
||
|
|
namespace.
|
||
|
|
|
||
|
|
see http://xmlrpc.usefulinc.com/doc/reserved.html
|
||
|
|
"""
|
||
|
|
|
||
|
|
self.funcs.update({'system.listMethods' : self.system_listMethods,
|
||
|
|
'system.methodSignature' : self.system_methodSignature,
|
||
|
|
'system.methodHelp' : self.system_methodHelp})
|
||
|
|
|
||
|
|
def register_multicall_functions(self):
|
||
|
|
"""Registers the XML-RPC multicall method in the system
|
||
|
|
namespace.
|
||
|
|
|
||
|
|
see http://www.xmlrpc.com/discuss/msgReader$1208"""
|
||
|
|
|
||
|
|
self.funcs.update({'system.multicall' : self.system_multicall})
|
||
|
|
|
||
|
|
def _marshaled_dispatch(self, data, dispatch_method = None):
|
||
|
|
"""Dispatches an XML-RPC method from marshalled (XML) data.
|
||
|
|
|
||
|
|
XML-RPC methods are dispatched from the marshalled (XML) data
|
||
|
|
using the _dispatch method and the result is returned as
|
||
|
|
marshalled data. For backwards compatibility, a dispatch
|
||
|
|
function can be provided as an argument (see comment in
|
||
|
|
SimpleXMLRPCRequestHandler.do_POST) but overriding the
|
||
|
|
existing method through subclassing is the prefered means
|
||
|
|
of changing method dispatch behavior.
|
||
|
|
"""
|
||
|
|
|
||
|
|
try:
|
||
|
|
params, method = xmlrpclib.loads(data)
|
||
|
|
|
||
|
|
# generate response
|
||
|
|
if dispatch_method is not None:
|
||
|
|
response = dispatch_method(method, params)
|
||
|
|
else:
|
||
|
|
response = self._dispatch(method, params)
|
||
|
|
# wrap response in a singleton tuple
|
||
|
|
response = (response,)
|
||
|
|
response = xmlrpclib.dumps(response, methodresponse=1,
|
||
|
|
allow_none=self.allow_none, encoding=self.encoding)
|
||
|
|
except Fault, fault:
|
||
|
|
response = xmlrpclib.dumps(fault, allow_none=self.allow_none,
|
||
|
|
encoding=self.encoding)
|
||
|
|
except:
|
||
|
|
# report exception back to server
|
||
|
|
response = xmlrpclib.dumps(
|
||
|
|
xmlrpclib.Fault(1, "%s:%s" % (sys.exc_type, sys.exc_value)),
|
||
|
|
encoding=self.encoding, allow_none=self.allow_none,
|
||
|
|
)
|
||
|
|
|
||
|
|
return response
|
||
|
|
|
||
|
|
def system_listMethods(self):
|
||
|
|
"""system.listMethods() => ['add', 'subtract', 'multiple']
|
||
|
|
|
||
|
|
Returns a list of the methods supported by the server."""
|
||
|
|
|
||
|
|
methods = self.funcs.keys()
|
||
|
|
if self.instance is not None:
|
||
|
|
# Instance can implement _listMethod to return a list of
|
||
|
|
# methods
|
||
|
|
if hasattr(self.instance, '_listMethods'):
|
||
|
|
methods = remove_duplicates(
|
||
|
|
methods + self.instance._listMethods()
|
||
|
|
)
|
||
|
|
# if the instance has a _dispatch method then we
|
||
|
|
# don't have enough information to provide a list
|
||
|
|
# of methods
|
||
|
|
elif not hasattr(self.instance, '_dispatch'):
|
||
|
|
methods = remove_duplicates(
|
||
|
|
methods + list_public_methods(self.instance)
|
||
|
|
)
|
||
|
|
methods.sort()
|
||
|
|
return methods
|
||
|
|
|
||
|
|
def system_methodSignature(self, method_name):
|
||
|
|
"""system.methodSignature('add') => [double, int, int]
|
||
|
|
|
||
|
|
Returns a list describing the signature of the method. In the
|
||
|
|
above example, the add method takes two integers as arguments
|
||
|
|
and returns a double result.
|
||
|
|
|
||
|
|
This server does NOT support system.methodSignature."""
|
||
|
|
|
||
|
|
# See http://xmlrpc.usefulinc.com/doc/sysmethodsig.html
|
||
|
|
|
||
|
|
return 'signatures not supported'
|
||
|
|
|
||
|
|
def system_methodHelp(self, method_name):
|
||
|
|
"""system.methodHelp('add') => "Adds two integers together"
|
||
|
|
|
||
|
|
Returns a string containing documentation for the specified method."""
|
||
|
|
|
||
|
|
method = None
|
||
|
|
if self.funcs.has_key(method_name):
|
||
|
|
method = self.funcs[method_name]
|
||
|
|
elif self.instance is not None:
|
||
|
|
# Instance can implement _methodHelp to return help for a method
|
||
|
|
if hasattr(self.instance, '_methodHelp'):
|
||
|
|
return self.instance._methodHelp(method_name)
|
||
|
|
# if the instance has a _dispatch method then we
|
||
|
|
# don't have enough information to provide help
|
||
|
|
elif not hasattr(self.instance, '_dispatch'):
|
||
|
|
try:
|
||
|
|
method = resolve_dotted_attribute(
|
||
|
|
self.instance,
|
||
|
|
method_name,
|
||
|
|
self.allow_dotted_names
|
||
|
|
)
|
||
|
|
except AttributeError:
|
||
|
|
pass
|
||
|
|
|
||
|
|
# Note that we aren't checking that the method actually
|
||
|
|
# be a callable object of some kind
|
||
|
|
if method is None:
|
||
|
|
return ""
|
||
|
|
else:
|
||
|
|
import pydoc
|
||
|
|
return pydoc.getdoc(method)
|
||
|
|
|
||
|
|
def system_multicall(self, call_list):
|
||
|
|
"""system.multicall([{'methodName': 'add', 'params': [2, 2]}, ...]) => \
|
||
|
|
[[4], ...]
|
||
|
|
|
||
|
|
Allows the caller to package multiple XML-RPC calls into a single
|
||
|
|
request.
|
||
|
|
|
||
|
|
See http://www.xmlrpc.com/discuss/msgReader$1208
|
||
|
|
"""
|
||
|
|
|
||
|
|
results = []
|
||
|
|
for call in call_list:
|
||
|
|
method_name = call['methodName']
|
||
|
|
params = call['params']
|
||
|
|
|
||
|
|
try:
|
||
|
|
# XXX A marshalling error in any response will fail the entire
|
||
|
|
# multicall. If someone cares they should fix this.
|
||
|
|
results.append([self._dispatch(method_name, params)])
|
||
|
|
except Fault, fault:
|
||
|
|
results.append(
|
||
|
|
{'faultCode' : fault.faultCode,
|
||
|
|
'faultString' : fault.faultString}
|
||
|
|
)
|
||
|
|
except:
|
||
|
|
results.append(
|
||
|
|
{'faultCode' : 1,
|
||
|
|
'faultString' : "%s:%s" % (sys.exc_type, sys.exc_value)}
|
||
|
|
)
|
||
|
|
return results
|
||
|
|
|
||
|
|
def _dispatch(self, method, params):
|
||
|
|
"""Dispatches the XML-RPC method.
|
||
|
|
|
||
|
|
XML-RPC calls are forwarded to a registered function that
|
||
|
|
matches the called XML-RPC method name. If no such function
|
||
|
|
exists then the call is forwarded to the registered instance,
|
||
|
|
if available.
|
||
|
|
|
||
|
|
If the registered instance has a _dispatch method then that
|
||
|
|
method will be called with the name of the XML-RPC method and
|
||
|
|
its parameters as a tuple
|
||
|
|
e.g. instance._dispatch('add',(2,3))
|
||
|
|
|
||
|
|
If the registered instance does not have a _dispatch method
|
||
|
|
then the instance will be searched to find a matching method
|
||
|
|
and, if found, will be called.
|
||
|
|
|
||
|
|
Methods beginning with an '_' are considered private and will
|
||
|
|
not be called.
|
||
|
|
"""
|
||
|
|
|
||
|
|
func = None
|
||
|
|
try:
|
||
|
|
# check to see if a matching function has been registered
|
||
|
|
func = self.funcs[method]
|
||
|
|
except KeyError:
|
||
|
|
if self.instance is not None:
|
||
|
|
# check for a _dispatch method
|
||
|
|
if hasattr(self.instance, '_dispatch'):
|
||
|
|
return self.instance._dispatch(method, params)
|
||
|
|
else:
|
||
|
|
# call instance method directly
|
||
|
|
try:
|
||
|
|
func = resolve_dotted_attribute(
|
||
|
|
self.instance,
|
||
|
|
method,
|
||
|
|
self.allow_dotted_names
|
||
|
|
)
|
||
|
|
except AttributeError:
|
||
|
|
pass
|
||
|
|
|
||
|
|
if func is not None:
|
||
|
|
return func(*params)
|
||
|
|
else:
|
||
|
|
raise Exception('method "%s" is not supported' % method)
|
||
|
|
|
||
|
|
class SimpleXMLRPCRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
|
||
|
|
"""Simple XML-RPC request handler class.
|
||
|
|
|
||
|
|
Handles all HTTP POST requests and attempts to decode them as
|
||
|
|
XML-RPC requests.
|
||
|
|
"""
|
||
|
|
|
||
|
|
# Class attribute listing the accessible path components;
|
||
|
|
# paths not on this list will result in a 404 error.
|
||
|
|
rpc_paths = ('/', '/RPC2')
|
||
|
|
|
||
|
|
def is_rpc_path_valid(self):
|
||
|
|
if self.rpc_paths:
|
||
|
|
return self.path in self.rpc_paths
|
||
|
|
else:
|
||
|
|
# If .rpc_paths is empty, just assume all paths are legal
|
||
|
|
return True
|
||
|
|
|
||
|
|
def do_POST(self):
|
||
|
|
"""Handles the HTTP POST request.
|
||
|
|
|
||
|
|
Attempts to interpret all HTTP POST requests as XML-RPC calls,
|
||
|
|
which are forwarded to the server's _dispatch method for handling.
|
||
|
|
"""
|
||
|
|
|
||
|
|
# Check that the path is legal
|
||
|
|
if not self.is_rpc_path_valid():
|
||
|
|
self.report_404()
|
||
|
|
return
|
||
|
|
|
||
|
|
try:
|
||
|
|
# Get arguments by reading body of request.
|
||
|
|
# We read this in chunks to avoid straining
|
||
|
|
# socket.read(); around the 10 or 15Mb mark, some platforms
|
||
|
|
# begin to have problems (bug #792570).
|
||
|
|
max_chunk_size = 10*1024*1024
|
||
|
|
size_remaining = int(self.headers["content-length"])
|
||
|
|
L = []
|
||
|
|
while size_remaining:
|
||
|
|
chunk_size = min(size_remaining, max_chunk_size)
|
||
|
|
L.append(self.rfile.read(chunk_size))
|
||
|
|
size_remaining -= len(L[-1])
|
||
|
|
data = ''.join(L)
|
||
|
|
|
||
|
|
# In previous versions of SimpleXMLRPCServer, _dispatch
|
||
|
|
# could be overridden in this class, instead of in
|
||
|
|
# SimpleXMLRPCDispatcher. To maintain backwards compatibility,
|
||
|
|
# check to see if a subclass implements _dispatch and dispatch
|
||
|
|
# using that method if present.
|
||
|
|
response = self.server._marshaled_dispatch(
|
||
|
|
data, getattr(self, '_dispatch', None)
|
||
|
|
)
|
||
|
|
except: # This should only happen if the module is buggy
|
||
|
|
# internal error, report as HTTP server error
|
||
|
|
self.send_response(500)
|
||
|
|
self.end_headers()
|
||
|
|
else:
|
||
|
|
# got a valid XML RPC response
|
||
|
|
self.send_response(200)
|
||
|
|
self.send_header("Content-type", "text/xml")
|
||
|
|
self.send_header("Content-length", str(len(response)))
|
||
|
|
self.end_headers()
|
||
|
|
self.wfile.write(response)
|
||
|
|
|
||
|
|
# shut down the connection
|
||
|
|
self.wfile.flush()
|
||
|
|
self.connection.shutdown(1)
|
||
|
|
|
||
|
|
def report_404 (self):
|
||
|
|
# Report a 404 error
|
||
|
|
self.send_response(404)
|
||
|
|
response = 'No such page'
|
||
|
|
self.send_header("Content-type", "text/plain")
|
||
|
|
self.send_header("Content-length", str(len(response)))
|
||
|
|
self.end_headers()
|
||
|
|
self.wfile.write(response)
|
||
|
|
# shut down the connection
|
||
|
|
self.wfile.flush()
|
||
|
|
self.connection.shutdown(1)
|
||
|
|
|
||
|
|
def log_request(self, code='-', size='-'):
|
||
|
|
"""Selectively log an accepted request."""
|
||
|
|
|
||
|
|
if self.server.logRequests:
|
||
|
|
BaseHTTPServer.BaseHTTPRequestHandler.log_request(self, code, size)
|
||
|
|
|
||
|
|
class SimpleXMLRPCServer(SocketServer.TCPServer,
|
||
|
|
SimpleXMLRPCDispatcher):
|
||
|
|
"""Simple XML-RPC server.
|
||
|
|
|
||
|
|
Simple XML-RPC server that allows functions and a single instance
|
||
|
|
to be installed to handle requests. The default implementation
|
||
|
|
attempts to dispatch XML-RPC calls to the functions or instance
|
||
|
|
installed in the server. Override the _dispatch method inhereted
|
||
|
|
from SimpleXMLRPCDispatcher to change this behavior.
|
||
|
|
"""
|
||
|
|
|
||
|
|
allow_reuse_address = True
|
||
|
|
|
||
|
|
def __init__(self, addr, requestHandler=SimpleXMLRPCRequestHandler,
|
||
|
|
logRequests=True, allow_none=False, encoding=None):
|
||
|
|
self.logRequests = logRequests
|
||
|
|
|
||
|
|
SimpleXMLRPCDispatcher.__init__(self, allow_none, encoding)
|
||
|
|
SocketServer.TCPServer.__init__(self, addr, requestHandler)
|
||
|
|
|
||
|
|
# [Bug #1222790] If possible, set close-on-exec flag; if a
|
||
|
|
# method spawns a subprocess, the subprocess shouldn't have
|
||
|
|
# the listening socket open.
|
||
|
|
if fcntl is not None and hasattr(fcntl, 'FD_CLOEXEC'):
|
||
|
|
flags = fcntl.fcntl(self.fileno(), fcntl.F_GETFD)
|
||
|
|
flags |= fcntl.FD_CLOEXEC
|
||
|
|
fcntl.fcntl(self.fileno(), fcntl.F_SETFD, flags)
|
||
|
|
|
||
|
|
class CGIXMLRPCRequestHandler(SimpleXMLRPCDispatcher):
|
||
|
|
"""Simple handler for XML-RPC data passed through CGI."""
|
||
|
|
|
||
|
|
def __init__(self, allow_none=False, encoding=None):
|
||
|
|
SimpleXMLRPCDispatcher.__init__(self, allow_none, encoding)
|
||
|
|
|
||
|
|
def handle_xmlrpc(self, request_text):
|
||
|
|
"""Handle a single XML-RPC request"""
|
||
|
|
|
||
|
|
response = self._marshaled_dispatch(request_text)
|
||
|
|
|
||
|
|
print 'Content-Type: text/xml'
|
||
|
|
print 'Content-Length: %d' % len(response)
|
||
|
|
print
|
||
|
|
sys.stdout.write(response)
|
||
|
|
|
||
|
|
def handle_get(self):
|
||
|
|
"""Handle a single HTTP GET request.
|
||
|
|
|
||
|
|
Default implementation indicates an error because
|
||
|
|
XML-RPC uses the POST method.
|
||
|
|
"""
|
||
|
|
|
||
|
|
code = 400
|
||
|
|
message, explain = \
|
||
|
|
BaseHTTPServer.BaseHTTPRequestHandler.responses[code]
|
||
|
|
|
||
|
|
response = BaseHTTPServer.DEFAULT_ERROR_MESSAGE % \
|
||
|
|
{
|
||
|
|
'code' : code,
|
||
|
|
'message' : message,
|
||
|
|
'explain' : explain
|
||
|
|
}
|
||
|
|
print 'Status: %d %s' % (code, message)
|
||
|
|
print 'Content-Type: text/html'
|
||
|
|
print 'Content-Length: %d' % len(response)
|
||
|
|
print
|
||
|
|
sys.stdout.write(response)
|
||
|
|
|
||
|
|
def handle_request(self, request_text = None):
|
||
|
|
"""Handle a single XML-RPC request passed through a CGI post method.
|
||
|
|
|
||
|
|
If no XML data is given then it is read from stdin. The resulting
|
||
|
|
XML-RPC response is printed to stdout along with the correct HTTP
|
||
|
|
headers.
|
||
|
|
"""
|
||
|
|
|
||
|
|
if request_text is None and \
|
||
|
|
os.environ.get('REQUEST_METHOD', None) == 'GET':
|
||
|
|
self.handle_get()
|
||
|
|
else:
|
||
|
|
# POST data is normally available through stdin
|
||
|
|
if request_text is None:
|
||
|
|
request_text = sys.stdin.read()
|
||
|
|
|
||
|
|
self.handle_xmlrpc(request_text)
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
print 'Running XML-RPC server on port 8000'
|
||
|
|
server = SimpleXMLRPCServer(("localhost", 8000))
|
||
|
|
server.register_function(pow)
|
||
|
|
server.register_function(lambda x,y: x+y, 'add')
|
||
|
|
server.serve_forever()
|