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#
# XML-RPC CLIENT LIBRARY
# $Id$
#
# an XML-RPC client interface for Python.
#
# the marshalling and response parser code can also be used to
# implement XML-RPC servers.
#
# Notes:
# this version is designed to work with Python 2.1 or newer.
#
# History:
# 1999-01-14 fl Created
# 1999-01-15 fl Changed dateTime to use localtime
# 1999-01-16 fl Added Binary/base64 element, default to RPC2 service
# 1999-01-19 fl Fixed array data element (from Skip Montanaro)
# 1999-01-21 fl Fixed dateTime constructor, etc.
# 1999-02-02 fl Added fault handling, handle empty sequences, etc.
# 1999-02-10 fl Fixed problem with empty responses (from Skip Montanaro)
# 1999-06-20 fl Speed improvements, pluggable parsers/transports (0.9.8)
# 2000-11-28 fl Changed boolean to check the truth value of its argument
# 2001-02-24 fl Added encoding/Unicode/SafeTransport patches
# 2001-02-26 fl Added compare support to wrappers (0.9.9/1.0b1)
# 2001-03-28 fl Make sure response tuple is a singleton
# 2001-03-29 fl Don't require empty params element (from Nicholas Riley)
# 2001-06-10 fl Folded in _xmlrpclib accelerator support (1.0b2)
# 2001-08-20 fl Base xmlrpclib.Error on built-in Exception (from Paul Prescod)
# 2001-09-03 fl Allow Transport subclass to override getparser
# 2001-09-10 fl Lazy import of urllib, cgi, xmllib (20x import speedup)
# 2001-10-01 fl Remove containers from memo cache when done with them
# 2001-10-01 fl Use faster escape method (80% dumps speedup)
# 2001-10-02 fl More dumps microtuning
# 2001-10-04 fl Make sure import expat gets a parser (from Guido van Rossum)
# 2001-10-10 sm Allow long ints to be passed as ints if they don't overflow
# 2001-10-17 sm Test for int and long overflow (allows use on 64-bit systems)
# 2001-11-12 fl Use repr() to marshal doubles (from Paul Felix)
# 2002-03-17 fl Avoid buffered read when possible (from James Rucker)
# 2002-04-07 fl Added pythondoc comments
# 2002-04-16 fl Added __str__ methods to datetime/binary wrappers
# 2002-05-15 fl Added error constants (from Andrew Kuchling)
# 2002-06-27 fl Merged with Python CVS version
# 2002-10-22 fl Added basic authentication (based on code from Phillip Eby)
# 2003-01-22 sm Add support for the bool type
# 2003-02-27 gvr Remove apply calls
# 2003-04-24 sm Use cStringIO if available
# 2003-04-25 ak Add support for nil
# 2003-06-15 gn Add support for time.struct_time
# 2003-07-12 gp Correct marshalling of Faults
# 2003-10-31 mvl Add multicall support
# 2004-08-20 mvl Bump minimum supported Python version to 2.1
#
# Copyright (c) 1999-2002 by Secret Labs AB.
# Copyright (c) 1999-2002 by Fredrik Lundh.
#
# [email protected]
# http://www.pythonware.com
#
# --------------------------------------------------------------------
# The XML-RPC client interface is
#
# Copyright (c) 1999-2002 by Secret Labs AB
# Copyright (c) 1999-2002 by Fredrik Lundh
#
# By obtaining, using, and/or copying this software and/or its
# associated documentation, you agree that you have read, understood,
# and will comply with the following terms and conditions:
#
# Permission to use, copy, modify, and distribute this software and
# its associated documentation for any purpose and without fee is
# hereby granted, provided that the above copyright notice appears in
# all copies, and that both that copyright notice and this permission
# notice appear in supporting documentation, and that the name of
# Secret Labs AB or the author not be used in advertising or publicity
# pertaining to distribution of the software without specific, written
# prior permission.
#
# SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
# TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT-
# ABILITY AND FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR
# BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
# OF THIS SOFTWARE.
# --------------------------------------------------------------------
#
# things to look into some day:
# TODO: sort out True/False/boolean issues for Python 2.3
"""
An XML-RPC client interface for Python.
The marshalling and response parser code can also be used to
implement XML-RPC servers.
Exported exceptions:
Error Base class for client errors
ProtocolError Indicates an HTTP protocol error
ResponseError Indicates a broken response package
Fault Indicates an XML-RPC fault package
Exported classes:
ServerProxy Represents a logical connection to an XML-RPC server
MultiCall Executor of boxcared xmlrpc requests
Boolean boolean wrapper to generate a "boolean" XML-RPC value
DateTime dateTime wrapper for an ISO 8601 string or time tuple or
localtime integer value to generate a "dateTime.iso8601"
XML-RPC value
Binary binary data wrapper
SlowParser Slow but safe standard parser (based on xmllib)
Marshaller Generate an XML-RPC params chunk from a Python data structure
Unmarshaller Unmarshal an XML-RPC response from incoming XML event message
Transport Handles an HTTP transaction to an XML-RPC server
SafeTransport Handles an HTTPS transaction to an XML-RPC server
Exported constants:
True
False
Exported functions:
boolean Convert any Python value to an XML-RPC boolean
getparser Create instance of the fastest available parser & attach
to an unmarshalling object
dumps Convert an argument tuple or a Fault instance to an XML-RPC
request (or response, if the methodresponse option is used).
loads Convert an XML-RPC packet to unmarshalled data plus a method
name (None if not present).
"""
import re, string, time, operator
from types import *
# --------------------------------------------------------------------
# Internal stuff
try:
unicode
except NameError:
unicode = None # unicode support not available
try:
import datetime
except ImportError:
datetime = None
try:
_bool_is_builtin = False.__class__.__name__ == "bool"
except NameError:
_bool_is_builtin = 0
def _decode(data, encoding, is8bit=re.compile("[\x80-\xff]").search):
# decode non-ascii string (if possible)
if unicode and encoding and is8bit(data):
data = unicode(data, encoding)
return data
def escape(s, replace=string.replace):
s = replace(s, "&", "&")
s = replace(s, "<", "<")
return replace(s, ">", ">",)
if unicode:
def _stringify(string):
# convert to 7-bit ascii if possible
try:
return string.encode("ascii")
except UnicodeError:
return string
else:
def _stringify(string):
return string
__version__ = "1.0.1"
# xmlrpc integer limits
MAXINT = 2L**31-1
MININT = -2L**31
# --------------------------------------------------------------------
# Error constants (from Dan Libby's specification at
# http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php)
# Ranges of errors
PARSE_ERROR = -32700
SERVER_ERROR = -32600
APPLICATION_ERROR = -32500
SYSTEM_ERROR = -32400
TRANSPORT_ERROR = -32300
# Specific errors
NOT_WELLFORMED_ERROR = -32700
UNSUPPORTED_ENCODING = -32701
INVALID_ENCODING_CHAR = -32702
INVALID_XMLRPC = -32600
METHOD_NOT_FOUND = -32601
INVALID_METHOD_PARAMS = -32602
INTERNAL_ERROR = -32603
# --------------------------------------------------------------------
# Exceptions
##
# Base class for all kinds of client-side errors.
class Error(Exception):
"""Base class for client errors."""
def __str__(self):
return repr(self)
##
# Indicates an HTTP-level protocol error. This is raised by the HTTP
# transport layer, if the server returns an error code other than 200
# (OK).
#
# @param url The target URL.
# @param errcode The HTTP error code.
# @param errmsg The HTTP error message.
# @param headers The HTTP header dictionary.
class ProtocolError(Error):
"""Indicates an HTTP protocol error."""
def __init__(self, url, errcode, errmsg, headers):
Error.__init__(self)
self.url = url
self.errcode = errcode
self.errmsg = errmsg
self.headers = headers
def __repr__(self):
return (
"" %
(self.url, self.errcode, self.errmsg)
)
##
# Indicates a broken XML-RPC response package. This exception is
# raised by the unmarshalling layer, if the XML-RPC response is
# malformed.
class ResponseError(Error):
"""Indicates a broken response package."""
pass
##
# Indicates an XML-RPC fault response package. This exception is
# raised by the unmarshalling layer, if the XML-RPC response contains
# a fault string. This exception can also used as a class, to
# generate a fault XML-RPC message.
#
# @param faultCode The XML-RPC fault code.
# @param faultString The XML-RPC fault string.
class Fault(Error):
"""Indicates an XML-RPC fault package."""
def __init__(self, faultCode, faultString, **extra):
Error.__init__(self)
self.faultCode = faultCode
self.faultString = faultString
def __repr__(self):
return (
"" %
(self.faultCode, repr(self.faultString))
)
# --------------------------------------------------------------------
# Special values
##
# Wrapper for XML-RPC boolean values. Use the xmlrpclib.True and
# xmlrpclib.False constants, or the xmlrpclib.boolean() function, to
# generate boolean XML-RPC values.
#
# @param value A boolean value. Any true value is interpreted as True,
# all other values are interpreted as False.
if _bool_is_builtin:
boolean = Boolean = bool
# to avoid breaking code which references xmlrpclib.{True,False}
True, False = True, False
else:
class Boolean:
"""Boolean-value wrapper.
Use True or False to generate a "boolean" XML-RPC value.
"""
def __init__(self, value = 0):
self.value = operator.truth(value)
def encode(self, out):
out.write("%d " % id(self)
else:
return "" % id(self)
def __int__(self):
return self.value
def __nonzero__(self):
return self.value
True, False = Boolean(1), Boolean(0)
##
# Map true or false value to XML-RPC boolean values.
#
# @def boolean(value)
# @param value A boolean value. Any true value is mapped to True,
# all other values are mapped to False.
# @return xmlrpclib.True or xmlrpclib.False.
# @see Boolean
# @see True
# @see False
def boolean(value, _truefalse=(False, True)):
"""Convert any Python value to XML-RPC 'boolean'."""
return _truefalse[operator.truth(value)]
##
# Wrapper for XML-RPC DateTime values. This converts a time value to
# the format used by XML-RPC.
#
# The value can be given as a string in the format
# "yyyymmddThh:mm:ss", as a 9-item time tuple (as returned by
# time.localtime()), or an integer value (as returned by time.time()).
# The wrapper uses time.localtime() to convert an integer to a time
# tuple.
#
# @param value The time, given as an ISO 8601 string, a time
# tuple, or a integer time value.
class DateTime:
"""DateTime wrapper for an ISO 8601 string or time tuple or
localtime integer value to generate 'dateTime.iso8601' XML-RPC
value.
"""
def __init__(self, value=0):
if not isinstance(value, StringType):
if datetime and isinstance(value, datetime.datetime):
self.value = value.strftime("%Y%m%dT%H:%M:%S")
return
if datetime and isinstance(value, datetime.date):
self.value = value.strftime("%Y%m%dT%H:%M:%S")
return
if datetime and isinstance(value, datetime.time):
today = datetime.datetime.now().strftime("%Y%m%d")
self.value = value.strftime(today+"T%H:%M:%S")
return
if not isinstance(value, (TupleType, time.struct_time)):
if value == 0:
value = time.time()
value = time.localtime(value)
value = time.strftime("%Y%m%dT%H:%M:%S", value)
self.value = value
def __cmp__(self, other):
if isinstance(other, DateTime):
other = other.value
return cmp(self.value, other)
##
# Get date/time value.
#
# @return Date/time value, as an ISO 8601 string.
def __str__(self):
return self.value
def __repr__(self):
return "" % (repr(self.value), id(self))
def decode(self, data):
data = str(data)
self.value = string.strip(data)
def encode(self, out):
out.write("")
out.write(self.value)
out.write(" \n")
base64.encode(StringIO.StringIO(self.data), out)
out.write(" entity
try:
self.handle_data(self.entity[entity])
except KeyError:
self.handle_data("&%s;" % entity)
try:
from xml.parsers import expat
if not hasattr(expat, "ParserCreate"):
raise ImportError
except ImportError:
ExpatParser = None # expat not available
else:
class ExpatParser:
# fast expat parser for Python 2.0 and later. this is about
# 50% slower than sgmlop, on roundtrip testing
def __init__(self, target):
self._parser = parser = expat.ParserCreate(None, None)
self._target = target
parser.StartElementHandler = target.start
parser.EndElementHandler = target.end
parser.CharacterDataHandler = target.data
encoding = None
if not parser.returns_unicode:
encoding = "utf-8"
target.xml(encoding, None)
def feed(self, data):
self._parser.Parse(data, 0)
def close(self):
self._parser.Parse("", 1) # end of data
del self._target, self._parser # get rid of circular references
class SlowParser:
"""Default XML parser (based on xmllib.XMLParser)."""
# this is about 10 times slower than sgmlop, on roundtrip
# testing.
def __init__(self, target):
import xmllib # lazy subclassing (!)
if xmllib.XMLParser not in SlowParser.__bases__:
SlowParser.__bases__ = (xmllib.XMLParser,)
self.handle_xml = target.xml
self.unknown_starttag = target.start
self.handle_data = target.data
self.handle_cdata = target.data
self.unknown_endtag = target.end
try:
xmllib.XMLParser.__init__(self, accept_utf8=1)
except TypeError:
xmllib.XMLParser.__init__(self) # pre-2.0
# --------------------------------------------------------------------
# XML-RPC marshalling and unmarshalling code
##
# XML-RPC marshaller.
#
# @param encoding Default encoding for 8-bit strings. The default
# value is None (interpreted as UTF-8).
# @see dumps
class Marshaller:
"""Generate an XML-RPC params chunk from a Python data structure.
Create a Marshaller instance for each set of parameters, and use
the "dumps" method to convert your data (represented as a tuple)
to an XML-RPC params chunk. To write a fault response, pass a
Fault instance instead. You may prefer to use the "dumps" module
function for this purpose.
"""
# by the way, if you don't understand what's going on in here,
# that's perfectly ok.
def __init__(self, encoding=None, allow_none=0):
self.memo = {}
self.data = None
self.encoding = encoding
self.allow_none = allow_none
dispatch = {}
def dumps(self, values):
out = []
write = out.append
dump = self.__dump
if isinstance(values, Fault):
# fault instance
write("\n")
dump({'faultCode': values.faultCode,
'faultString': values.faultString},
write)
write(" \n")
else:
# parameter block
# FIXME: the xml-rpc specification allows us to leave out
# the entire block if there are no parameters.
# however, changing this may break older code (including
# old versions of xmlrpclib.py), so this is better left as
# is for now. See @XMLRPC3 for more information. /F
write("\n")
for v in values:
write("\n")
dump(v, write)
write("\n")
write(" \n")
result = string.join(out, "")
return result
def __dump(self, value, write):
try:
f = self.dispatch[type(value)]
except KeyError:
raise TypeError, "cannot marshal %s objects" % type(value)
else:
f(self, value, write)
def dump_nil (self, value, write):
if not self.allow_none:
raise TypeError, "cannot marshal None unless allow_none is enabled"
write("")
write(str(value))
write(" ")
write(value and "1" or "0")
write(" ")
write(str(int(value)))
write(" ")
write(repr(value))
write(" ")
write(escape(value))
write(" ")
write(escape(value))
write(" \n")
for v in value:
dump(v, write)
write(" \n")
for k, v in value.items():
write("\n")
if type(k) is not StringType:
if unicode and type(k) is UnicodeType:
k = k.encode(self.encoding)
else:
raise TypeError, "dictionary key must be string"
write("%s \n" % escape(k))
dump(v, write)
write(" \n")
write(" ")
write(value.strftime("%Y%m%dT%H:%M:%S"))
write(" ")
write(value.strftime("%Y%m%dT00:00:00"))
write(" ")
write(datetime.datetime.now().date().strftime("%Y%m%dT"))
write(value.strftime("%H:%M:%S"))
write(" " % id(self)
__str__ = __repr__
def __getattr__(self, name):
return _MultiCallMethod(self.__call_list, name)
def __call__(self):
marshalled_list = []
for name, args in self.__call_list:
marshalled_list.append({'methodName' : name, 'params' : args})
return MultiCallIterator(self.__server.system.multicall(marshalled_list))
# --------------------------------------------------------------------
# convenience functions
##
# Create a parser object, and connect it to an unmarshalling instance.
# This function picks the fastest available XML parser.
#
# return A (parser, unmarshaller) tuple.
def getparser(use_datetime=0):
"""getparser() -> parser, unmarshaller
Create an instance of the fastest available parser, and attach it
to an unmarshalling object. Return both objects.
"""
if use_datetime and not datetime:
raise ValueError, "the datetime module is not available"
if FastParser and FastUnmarshaller:
if use_datetime:
mkdatetime = _datetime_type
else:
mkdatetime = _datetime
target = FastUnmarshaller(True, False, _binary, mkdatetime, Fault)
parser = FastParser(target)
else:
target = Unmarshaller(use_datetime=use_datetime)
if FastParser:
parser = FastParser(target)
elif SgmlopParser:
parser = SgmlopParser(target)
elif ExpatParser:
parser = ExpatParser(target)
else:
parser = SlowParser(target)
return parser, target
##
# Convert a Python tuple or a Fault instance to an XML-RPC packet.
#
# @def dumps(params, **options)
# @param params A tuple or Fault instance.
# @keyparam methodname If given, create a methodCall request for
# this method name.
# @keyparam methodresponse If given, create a methodResponse packet.
# If used with a tuple, the tuple must be a singleton (that is,
# it must contain exactly one element).
# @keyparam encoding The packet encoding.
# @return A string containing marshalled data.
def dumps(params, methodname=None, methodresponse=None, encoding=None,
allow_none=0):
"""data [,options] -> marshalled data
Convert an argument tuple or a Fault instance to an XML-RPC
request (or response, if the methodresponse option is used).
In addition to the data object, the following options can be given
as keyword arguments:
methodname: the method name for a methodCall packet
methodresponse: true to create a methodResponse packet.
If this option is used with a tuple, the tuple must be
a singleton (i.e. it can contain only one element).
encoding: the packet encoding (default is UTF-8)
All 8-bit strings in the data structure are assumed to use the
packet encoding. Unicode strings are automatically converted,
where necessary.
"""
assert isinstance(params, TupleType) or isinstance(params, Fault),\
"argument must be tuple or Fault instance"
if isinstance(params, Fault):
methodresponse = 1
elif methodresponse and isinstance(params, TupleType):
assert len(params) == 1, "response tuple must be a singleton"
if not encoding:
encoding = "utf-8"
if FastMarshaller:
m = FastMarshaller(encoding)
else:
m = Marshaller(encoding, allow_none)
data = m.dumps(params)
if encoding != "utf-8":
xmlheader = "\n" % str(encoding)
else:
xmlheader = "\n" # utf-8 is default
# standard XML-RPC wrappings
if methodname:
# a method call
if not isinstance(methodname, StringType):
methodname = methodname.encode(encoding)
data = (
xmlheader,
"\n"
"", methodname, " \n",
data,
" \n"
)
elif methodresponse:
# a method response, or a fault structure
data = (
xmlheader,
"\n",
data,
" \n"
)
else:
return data # return as is
return string.join(data, "")
##
# Convert an XML-RPC packet to a Python object. If the XML-RPC packet
# represents a fault condition, this function raises a Fault exception.
#
# @param data An XML-RPC packet, given as an 8-bit string.
# @return A tuple containing the unpacked data, and the method name
# (None if not present).
# @see Fault
def loads(data, use_datetime=0):
"""data -> unmarshalled data, method name
Convert an XML-RPC packet to unmarshalled data plus a method
name (None if not present).
If the XML-RPC packet represents a fault condition, this function
raises a Fault exception.
"""
p, u = getparser(use_datetime=use_datetime)
p.feed(data)
p.close()
return u.close(), u.getmethodname()
# --------------------------------------------------------------------
# request dispatcher
class _Method:
# some magic to bind an XML-RPC method to an RPC server.
# supports "nested" methods (e.g. examples.getStateName)
def __init__(self, send, name):
self.__send = send
self.__name = name
def __getattr__(self, name):
return _Method(self.__send, "%s.%s" % (self.__name, name))
def __call__(self, *args):
return self.__send(self.__name, args)
##
# Standard transport class for XML-RPC over HTTP.
#
# You can create custom transports by subclassing this method, and
# overriding selected methods.
class Transport:
"""Handles an HTTP transaction to an XML-RPC server."""
# client identifier (may be overridden)
user_agent = "xmlrpclib.py/%s (by www.pythonware.com)" % __version__
def __init__(self, use_datetime=0):
self._use_datetime = use_datetime
##
# Send a complete request, and parse the response.
#
# @param host Target host.
# @param handler Target PRC handler.
# @param request_body XML-RPC request body.
# @param verbose Debugging flag.
# @return Parsed response.
def request(self, host, handler, request_body, verbose=0):
# issue XML-RPC request
h = self.make_connection(host)
if verbose:
h.set_debuglevel(1)
self.send_request(h, handler, request_body)
self.send_host(h, host)
self.send_user_agent(h)
self.send_content(h, request_body)
errcode, errmsg, headers = h.getreply()
if errcode != 200:
raise ProtocolError(
host + handler,
errcode, errmsg,
headers
)
self.verbose = verbose
try:
sock = h._conn.sock
except AttributeError:
sock = None
return self._parse_response(h.getfile(), sock)
##
# Create parser.
#
# @return A 2-tuple containing a parser and a unmarshaller.
def getparser(self):
# get parser and unmarshaller
return getparser(use_datetime=self._use_datetime)
##
# Get authorization info from host parameter
# Host may be a string, or a (host, x509-dict) tuple; if a string,
# it is checked for a "user:pw@host" format, and a "Basic
# Authentication" header is added if appropriate.
#
# @param host Host descriptor (URL or (URL, x509 info) tuple).
# @return A 3-tuple containing (actual host, extra headers,
# x509 info). The header and x509 fields may be None.
def get_host_info(self, host):
x509 = {}
if isinstance(host, TupleType):
host, x509 = host
import urllib
auth, host = urllib.splituser(host)
if auth:
import base64
auth = base64.encodestring(urllib.unquote(auth))
auth = string.join(string.split(auth), "") # get rid of whitespace
extra_headers = [
("Authorization", "Basic " + auth)
]
else:
extra_headers = None
return host, extra_headers, x509
##
# Connect to server.
#
# @param host Target host.
# @return A connection handle.
def make_connection(self, host):
# create a HTTP connection object from a host descriptor
import httplib
host, extra_headers, x509 = self.get_host_info(host)
return httplib.HTTP(host)
##
# Send request header.
#
# @param connection Connection handle.
# @param handler Target RPC handler.
# @param request_body XML-RPC body.
def send_request(self, connection, handler, request_body):
connection.putrequest("POST", handler)
##
# Send host name.
#
# @param connection Connection handle.
# @param host Host name.
def send_host(self, connection, host):
host, extra_headers, x509 = self.get_host_info(host)
connection.putheader("Host", host)
if extra_headers:
if isinstance(extra_headers, DictType):
extra_headers = extra_headers.items()
for key, value in extra_headers:
connection.putheader(key, value)
##
# Send user-agent identifier.
#
# @param connection Connection handle.
def send_user_agent(self, connection):
connection.putheader("User-Agent", self.user_agent)
##
# Send request body.
#
# @param connection Connection handle.
# @param request_body XML-RPC request body.
def send_content(self, connection, request_body):
connection.putheader("Content-Type", "text/xml")
connection.putheader("Content-Length", str(len(request_body)))
connection.endheaders()
if request_body:
connection.send(request_body)
##
# Parse response.
#
# @param file Stream.
# @return Response tuple and target method.
def parse_response(self, file):
# compatibility interface
return self._parse_response(file, None)
##
# Parse response (alternate interface). This is similar to the
# parse_response method, but also provides direct access to the
# underlying socket object (where available).
#
# @param file Stream.
# @param sock Socket handle (or None, if the socket object
# could not be accessed).
# @return Response tuple and target method.
def _parse_response(self, file, sock):
# read response from input file/socket, and parse it
p, u = self.getparser()
while 1:
if sock:
response = sock.recv(1024)
else:
response = file.read(1024)
if not response:
break
if self.verbose:
print "body:", repr(response)
p.feed(response)
file.close()
p.close()
return u.close()
##
# Standard transport class for XML-RPC over HTTPS.
class SafeTransport(Transport):
"""Handles an HTTPS transaction to an XML-RPC server."""
# FIXME: mostly untested
def make_connection(self, host):
# create a HTTPS connection object from a host descriptor
# host may be a string, or a (host, x509-dict) tuple
import httplib
host, extra_headers, x509 = self.get_host_info(host)
try:
HTTPS = httplib.HTTPS
except AttributeError:
raise NotImplementedError(
"your version of httplib doesn't support HTTPS"
)
else:
return HTTPS(host, None, **(x509 or {}))
##
# Standard server proxy. This class establishes a virtual connection
# to an XML-RPC server.
#
# This class is available as ServerProxy and Server. New code should
# use ServerProxy, to avoid confusion.
#
# @def ServerProxy(uri, **options)
# @param uri The connection point on the server.
# @keyparam transport A transport factory, compatible with the
# standard transport class.
# @keyparam encoding The default encoding used for 8-bit strings
# (default is UTF-8).
# @keyparam verbose Use a true value to enable debugging output.
# (printed to standard output).
# @see Transport
class ServerProxy:
"""uri [,options] -> a logical connection to an XML-RPC server
uri is the connection point on the server, given as
scheme://host/target.
The standard implementation always supports the "http" scheme. If
SSL socket support is available (Python 2.0), it also supports
"https".
If the target part and the slash preceding it are both omitted,
"/RPC2" is assumed.
The following options can be given as keyword arguments:
transport: a transport factory
encoding: the request encoding (default is UTF-8)
All 8-bit strings passed to the server proxy are assumed to use
the given encoding.
"""
def __init__(self, uri, transport=None, encoding=None, verbose=0,
allow_none=0, use_datetime=0):
# establish a "logical" server connection
# get the url
import urllib
type, uri = urllib.splittype(uri)
if type not in ("http", "https"):
raise IOError, "unsupported XML-RPC protocol"
self.__host, self.__handler = urllib.splithost(uri)
if not self.__handler:
self.__handler = "/RPC2"
if transport is None:
if type == "https":
transport = SafeTransport(use_datetime=use_datetime)
else:
transport = Transport(use_datetime=use_datetime)
self.__transport = transport
self.__encoding = encoding
self.__verbose = verbose
self.__allow_none = allow_none
def __request(self, methodname, params):
# call a method on the remote server
request = dumps(params, methodname, encoding=self.__encoding,
allow_none=self.__allow_none)
response = self.__transport.request(
self.__host,
self.__handler,
request,
verbose=self.__verbose
)
if len(response) == 1:
response = response[0]
return response
def __repr__(self):
return (
"" %
(self.__host, self.__handler)
)
__str__ = __repr__
def __getattr__(self, name):
# magic method dispatcher
return _Method(self.__request, name)
# note: to call a remote object with an non-standard name, use
# result getattr(server, "strange-python-name")(args)
# compatibility
Server = ServerProxy
# --------------------------------------------------------------------
# test code
if __name__ == "__main__":
# simple test program (from the XML-RPC specification)
# server = ServerProxy("http://localhost:8000") # local server
server = ServerProxy("http://time.xmlrpc.com/RPC2")
print server
try:
print server.currentTime.getCurrentTime()
except Error, v:
print "ERROR", v
multi = MultiCall(server)
multi.currentTime.getCurrentTime()
multi.currentTime.getCurrentTime()
try:
for response in multi():
print response
except Error, v:
print "ERROR", v