Patch #536883: SimpleXMLRPCServer auto-docing subclass.
diff --git a/Lib/DocXMLRPCServer.py b/Lib/DocXMLRPCServer.py
new file mode 100644
index 0000000..adb8a93
--- /dev/null
+++ b/Lib/DocXMLRPCServer.py
@@ -0,0 +1,302 @@
+"""Self documenting XML-RPC Server.
+
+This module 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.
+
+This module is built upon the pydoc and SimpleXMLRPCServer
+modules.
+"""
+
+import pydoc
+import inspect
+import types
+import re
+
+from SimpleXMLRPCServer import SimpleXMLRPCServer,\
+ SimpleXMLRPCRequestHandler,\
+ CGIXMLRPCRequestHandler,\
+ resolve_dotted_attribute
+
+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 expressions 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/peps/pep-%04d.html' % 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=None, 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>' % (anchor, name)
+
+ if inspect.ismethod(object):
+ args, varargs, varkw, defaults = inspect.getargspec(object.im_func)
+ # 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, types.TupleType):
+ 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]
+
+ 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 = methods.items()
+ method_items.sort()
+ for key, value in method_items:
+ contents.append(self.docroutine(value, key, funcs=fdict))
+ result = result + self.bigsection(
+ 'Methods', '#ffffff', '#eeaa77', pydoc.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 self.funcs.has_key(method_name):
+ 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.
+ """
+
+ response = self.server.generate_html_documentation()
+ 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)
+
+ # shut down the connection
+ self.wfile.flush()
+ self.connection.shutdown(1)
+
+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=1):
+ SimpleXMLRPCServer.__init__(self, addr, requestHandler, logRequests)
+ 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()
+
+ print 'Content-Type: text/html'
+ print 'Content-Length: %d' % len(response)
+ print
+ print response
+
+ def __init__(self):
+ CGIXMLRPCRequestHandler.__init__(self)
+ XMLRPCDocGenerator.__init__(self)
+
+if __name__ == '__main__':
+ def deg_to_rad(deg):
+ """deg_to_rad(90) => 1.5707963267948966
+
+ Converts an angle in degrees to an angle in radians"""
+ import math
+ return deg * math.pi / 180
+
+ server = DocXMLRPCServer(("localhost", 8000))
+
+ server.set_server_title("Math Server")
+ server.set_server_name("Math XML-RPC Server")
+ server.set_server_documentation("""This server supports various mathematical functions.
+
+You can use it from Python as follows:
+
+>>> from xmlrpclib import ServerProxy
+>>> s = ServerProxy("http://localhost:8000")
+>>> s.deg_to_rad(90.0)
+1.5707963267948966""")
+
+ server.register_function(deg_to_rad)
+ server.register_introspection_functions()
+
+ server.serve_forever()
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