JezK
Edit File: server.py
r"""XML-RPC Servers. 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. The Doc* classes can be used to create XML-RPC servers that serve pydoc-style documentation in response to HTTP GET requests. This documentation is dynamically generated based on the functions and methods registered with the server. 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 sys functions available through sys.func_name import sys self.sys = sys def _listMethods(self): # implement this method so that system.listMethods # knows to advertise the sys methods return list_public_methods(self) + \ ['sys.' + method for method in list_public_methods(self.sys)] 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 ValueError('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. from xmlrpc.client import Fault, dumps, loads, gzip_encode, gzip_decode from http.server import BaseHTTPRequestHandler import http.server import socketserver import sys import os import re import pydoc import inspect import traceback 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))] 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. This class doesn't need to be instanced directly when used by SimpleXMLRPCServer but it can be instanced when used by the MultiPathXMLRPCServer """ def __init__(self, allow_none=False, encoding=None): self.funcs = {} self.instance = None self.allow_none = allow_none self.encoding = encoding or 'utf-8' 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, path = 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 preferred means of changing method dispatch behavior. """ try: params, method = 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 = dumps(response, methodresponse=1, allow_none=self.allow_none, encoding=self.encoding) except Fault as fault: response = dumps(fault, allow_none=self.allow_none, encoding=self.encoding) except: # report exception back to server exc_type, exc_value, exc_tb = sys.exc_info() response = dumps( Fault(1, "%s:%s" % (exc_type, exc_value)), encoding=self.encoding, allow_none=self.allow_none, ) return response.encode(self.encoding) def system_listMethods(self): """system.listMethods() => ['add', 'subtract', 'multiple'] Returns a list of the methods supported by the server.""" methods = set(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 |= set(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 |= set(list_public_methods(self.instance)) return sorted(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 method_name in self.funcs: 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: 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 as fault: results.append( {'faultCode' : fault.faultCode, 'faultString' : fault.faultString} ) except: exc_type, exc_value, exc_tb = sys.exc_info() results.append( {'faultCode' : 1, 'faultString' : "%s:%s" % (exc_type, 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(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') #if not None, encode responses larger than this, if possible encode_threshold = 1400 #a common MTU #Override form StreamRequestHandler: full buffering of output #and no Nagle. wbufsize = -1 disable_nagle_algorithm = True # a re to match a gzip Accept-Encoding aepattern = re.compile(r""" \s* ([^\s;]+) \s* #content-coding (;\s* q \s*=\s* ([0-9\.]+))? #q """, re.VERBOSE | re.IGNORECASE) def accept_encodings(self): r = {} ae = self.headers.get("Accept-Encoding", "") for e in ae.split(","): match = self.aepattern.match(e) if match: v = match.group(3) v = float(v) if v else 1.0 r[match.group(1)] = v return r 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) chunk = self.rfile.read(chunk_size) if not chunk: break L.append(chunk) size_remaining -= len(L[-1]) data = b''.join(L) data = self.decode_request_content(data) if data is None: return #response has been sent # 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), self.path ) except Exception as e: # This should only happen if the module is buggy # internal error, report as HTTP server error self.send_response(500) # Send information about the exception if requested if hasattr(self.server, '_send_traceback_header') and \ self.server._send_traceback_header: self.send_header("X-exception", str(e)) trace = traceback.format_exc() trace = str(trace.encode('ASCII', 'backslashreplace'), 'ASCII') self.send_header("X-traceback", trace) self.send_header("Content-length", "0") self.end_headers() else: self.send_response(200) self.send_header("Content-type", "text/xml") if self.encode_threshold is not None: if len(response) > self.encode_threshold: q = self.accept_encodings().get("gzip", 0) if q: try: response = gzip_encode(response) self.send_header("Content-Encoding", "gzip") except NotImplementedError: pass self.send_header("Content-length", str(len(response))) self.end_headers() self.wfile.write(response) def decode_request_content(self, data): #support gzip encoding of request encoding = self.headers.get("content-encoding", "identity").lower() if encoding == "identity": return data if encoding == "gzip": try: return gzip_decode(data) except NotImplementedError: self.send_response(501, "encoding %r not supported" % encoding) except ValueError: self.send_response(400, "error decoding gzip content") else: self.send_response(501, "encoding %r not supported" % encoding) self.send_header("Content-length", "0") self.end_headers() def report_404 (self): # Report a 404 error self.send_response(404) response = b'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) def log_request(self, code='-', size='-'): """Selectively log an accepted request.""" if self.server.logRequests: 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 inherited from SimpleXMLRPCDispatcher to change this behavior. """ allow_reuse_address = True # Warning: this is for debugging purposes only! Never set this to True in # production code, as will be sending out sensitive information (exception # and stack trace details) when exceptions are raised inside # SimpleXMLRPCRequestHandler.do_POST _send_traceback_header = False def __init__(self, addr, requestHandler=SimpleXMLRPCRequestHandler, logRequests=True, allow_none=False, encoding=None, bind_and_activate=True): self.logRequests = logRequests SimpleXMLRPCDispatcher.__init__(self, allow_none, encoding) socketserver.TCPServer.__init__(self, addr, requestHandler, bind_and_activate) # [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 MultiPathXMLRPCServer(SimpleXMLRPCServer): """Multipath XML-RPC Server This specialization of SimpleXMLRPCServer allows the user to create multiple Dispatcher instances and assign them to different HTTP request paths. This makes it possible to run two or more 'virtual XML-RPC servers' at the same port. Make sure that the requestHandler accepts the paths in question. """ def __init__(self, addr, requestHandler=SimpleXMLRPCRequestHandler, logRequests=True, allow_none=False, encoding=None, bind_and_activate=True): SimpleXMLRPCServer.__init__(self, addr, requestHandler, logRequests, allow_none, encoding, bind_and_activate) self.dispatchers = {} self.allow_none = allow_none self.encoding = encoding or 'utf-8' def add_dispatcher(self, path, dispatcher): self.dispatchers[path] = dispatcher return dispatcher def get_dispatcher(self, path): return self.dispatchers[path] def _marshaled_dispatch(self, data, dispatch_method = None, path = None): try: response = self.dispatchers[path]._marshaled_dispatch( data, dispatch_method, path) except: # report low level exception back to server # (each dispatcher should have handled their own # exceptions) exc_type, exc_value = sys.exc_info()[:2] response = dumps( Fault(1, "%s:%s" % (exc_type, exc_value)), encoding=self.encoding, allow_none=self.allow_none) response = response.encode(self.encoding) return response 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.flush() sys.stdout.buffer.write(response) sys.stdout.buffer.flush() 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 = BaseHTTPRequestHandler.responses[code] response = http.server.DEFAULT_ERROR_MESSAGE % \ { 'code' : code, 'message' : message, 'explain' : explain } response = response.encode('utf-8') print('Status: %d %s' % (code, message)) print('Content-Type: %s' % http.server.DEFAULT_ERROR_CONTENT_TYPE) print('Content-Length: %d' % len(response)) print() sys.stdout.flush() sys.stdout.buffer.write(response) sys.stdout.buffer.flush() 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 try: length = int(os.environ.get('CONTENT_LENGTH', None)) except (ValueError, TypeError): length = -1 if request_text is None: request_text = sys.stdin.read(length) self.handle_xmlrpc(request_text) # ----------------------------------------------------------------------------- # Self documenting XML-RPC Server. class ServerHTMLDoc(pydoc.HTMLDoc): """Class used to generate pydoc HTML document for a server""" def markup(self, text, escape=None, funcs={}, classes={}, methods={}): """Mark up some plain text, given a context of symbols to look for. Each context dictionary maps object names to anchor names.""" escape = escape or self.escape results = [] here = 0 # XXX Note that this regular expression does not allow for the # hyperlinking of arbitrary strings being used as method # names. Only methods with names consisting of word characters # and '.'s are hyperlinked. pattern = re.compile(r'\b((http|ftp)://\S+[\w/]|' r'RFC[- ]?(\d+)|' r'PEP[- ]?(\d+)|' r'(self\.)?((?:\w|\.)+))\b') while 1: match = pattern.search(text, here) if not match: break start, end = match.span() results.append(escape(text[here:start])) all, scheme, rfc, pep, selfdot, name = match.groups() if scheme: url = escape(all).replace('"', '"') results.append('<a href="%s">%s</a>' % (url, url)) elif rfc: url = 'http://www.rfc-editor.org/rfc/rfc%d.txt' % int(rfc) results.append('<a href="%s">%s</a>' % (url, escape(all))) elif pep: url = 'http://www.python.org/dev/peps/pep-%04d/' % int(pep) results.append('<a href="%s">%s</a>' % (url, escape(all))) elif text[end:end+1] == '(': results.append(self.namelink(name, methods, funcs, classes)) elif selfdot: results.append('self.<strong>%s</strong>' % name) else: results.append(self.namelink(name, classes)) here = end results.append(escape(text[here:])) return ''.join(results) def docroutine(self, object, name, mod=None, funcs={}, classes={}, methods={}, cl=None): """Produce HTML documentation for a function or method object.""" anchor = (cl and cl.__name__ or '') + '-' + name note = '' title = '<a name="%s"><strong>%s</strong></a>' % ( self.escape(anchor), self.escape(name)) if inspect.ismethod(object): args, varargs, varkw, defaults = inspect.getargspec(object) # exclude the argument bound to the instance, it will be # confusing to the non-Python user argspec = inspect.formatargspec ( args[1:], varargs, varkw, defaults, formatvalue=self.formatvalue ) elif inspect.isfunction(object): args, varargs, varkw, defaults = inspect.getargspec(object) argspec = inspect.formatargspec( args, varargs, varkw, defaults, formatvalue=self.formatvalue) else: argspec = '(...)' if isinstance(object, tuple): argspec = object[0] or argspec docstring = object[1] or "" else: docstring = pydoc.getdoc(object) decl = title + argspec + (note and self.grey( '<font face="helvetica, arial">%s</font>' % note)) doc = self.markup( docstring, self.preformat, funcs, classes, methods) doc = doc and '<dd><tt>%s</tt></dd>' % doc return '<dl><dt>%s</dt>%s</dl>\n' % (decl, doc) def docserver(self, server_name, package_documentation, methods): """Produce HTML documentation for an XML-RPC server.""" fdict = {} for key, value in methods.items(): fdict[key] = '#-' + key fdict[value] = fdict[key] server_name = self.escape(server_name) head = '<big><big><strong>%s</strong></big></big>' % server_name result = self.heading(head, '#ffffff', '#7799ee') doc = self.markup(package_documentation, self.preformat, fdict) doc = doc and '<tt>%s</tt>' % doc result = result + '<p>%s</p>\n' % doc contents = [] method_items = sorted(methods.items()) for key, value in method_items: contents.append(self.docroutine(value, key, funcs=fdict)) result = result + self.bigsection( 'Methods', '#ffffff', '#eeaa77', ''.join(contents)) return result class XMLRPCDocGenerator: """Generates documentation for an XML-RPC server. This class is designed as mix-in and should not be constructed directly. """ def __init__(self): # setup variables used for HTML documentation self.server_name = 'XML-RPC Server Documentation' self.server_documentation = \ "This server exports the following methods through the XML-RPC "\ "protocol." self.server_title = 'XML-RPC Server Documentation' def set_server_title(self, server_title): """Set the HTML title of the generated server documentation""" self.server_title = server_title def set_server_name(self, server_name): """Set the name of the generated HTML server documentation""" self.server_name = server_name def set_server_documentation(self, server_documentation): """Set the documentation string for the entire server.""" self.server_documentation = server_documentation def generate_html_documentation(self): """generate_html_documentation() => html documentation for the server Generates HTML documentation for the server using introspection for installed functions and instances that do not implement the _dispatch method. Alternatively, instances can choose to implement the _get_method_argstring(method_name) method to provide the argument string used in the documentation and the _methodHelp(method_name) method to provide the help text used in the documentation.""" methods = {} for method_name in self.system_listMethods(): if method_name in self.funcs: method = self.funcs[method_name] elif self.instance is not None: method_info = [None, None] # argspec, documentation if hasattr(self.instance, '_get_method_argstring'): method_info[0] = self.instance._get_method_argstring(method_name) if hasattr(self.instance, '_methodHelp'): method_info[1] = self.instance._methodHelp(method_name) method_info = tuple(method_info) if method_info != (None, None): method = method_info elif not hasattr(self.instance, '_dispatch'): try: method = resolve_dotted_attribute( self.instance, method_name ) except AttributeError: method = method_info else: method = method_info else: assert 0, "Could not find method in self.functions and no "\ "instance installed" methods[method_name] = method documenter = ServerHTMLDoc() documentation = documenter.docserver( self.server_name, self.server_documentation, methods ) return documenter.page(self.server_title, documentation) class DocXMLRPCRequestHandler(SimpleXMLRPCRequestHandler): """XML-RPC and documentation request handler class. Handles all HTTP POST requests and attempts to decode them as XML-RPC requests. Handles all HTTP GET requests and interprets them as requests for documentation. """ def do_GET(self): """Handles the HTTP GET request. Interpret all HTTP GET requests as requests for server documentation. """ # Check that the path is legal if not self.is_rpc_path_valid(): self.report_404() return response = self.server.generate_html_documentation().encode('utf-8') self.send_response(200) self.send_header("Content-type", "text/html") self.send_header("Content-length", str(len(response))) self.end_headers() self.wfile.write(response) class DocXMLRPCServer( SimpleXMLRPCServer, XMLRPCDocGenerator): """XML-RPC and HTML documentation server. Adds the ability to serve server documentation to the capabilities of SimpleXMLRPCServer. """ def __init__(self, addr, requestHandler=DocXMLRPCRequestHandler, logRequests=True, allow_none=False, encoding=None, bind_and_activate=True): SimpleXMLRPCServer.__init__(self, addr, requestHandler, logRequests, allow_none, encoding, bind_and_activate) XMLRPCDocGenerator.__init__(self) class DocCGIXMLRPCRequestHandler( CGIXMLRPCRequestHandler, XMLRPCDocGenerator): """Handler for XML-RPC data and documentation requests passed through CGI""" def handle_get(self): """Handles the HTTP GET request. Interpret all HTTP GET requests as requests for server documentation. """ response = self.generate_html_documentation().encode('utf-8') print('Content-Type: text/html') print('Content-Length: %d' % len(response)) print() sys.stdout.flush() sys.stdout.buffer.write(response) sys.stdout.buffer.flush() def __init__(self): CGIXMLRPCRequestHandler.__init__(self) XMLRPCDocGenerator.__init__(self) 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()