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- """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
- import sys
-
- 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
- sys.stdout.write(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()
-