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Limnoria/others/SOAPpy/Server.py
Jeremy Fincher da8ebdb64a Upgraded google, which required upgrading SOAP.
2004-09-30 08:09:08 +00:00

707 lines
26 KiB
Python
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"""
################################################################################
#
# SOAPpy - Cayce Ullman (cayce@actzero.com)
# Brian Matthews (blm@actzero.com)
# Gregory Warnes (gregory_r_warnes@groton.pfizer.com)
# Christopher Blunck (blunck@gst.com)
#
################################################################################
# Copyright (c) 2003, Pfizer
# Copyright (c) 2001, Cayce Ullman.
# Copyright (c) 2001, Brian Matthews.
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# Neither the name of actzero, inc. nor the names of its contributors may
# be used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
################################################################################
"""
ident = '$Id$'
from version import __version__
from __future__ import nested_scopes
#import xml.sax
import re
import socket
import sys
import SocketServer
from types import *
import BaseHTTPServer
import thread
# SOAPpy modules
from Parser import parseSOAPRPC
from Config import Config
from Types import faultType, voidType, simplify
from NS import NS
from SOAPBuilder import buildSOAP
from Utilities import debugHeader, debugFooter
try: from M2Crypto import SSL
except: pass
ident = '$Id$'
from version import __version__
################################################################################
# Call context dictionary
################################################################################
_contexts = dict()
def GetSOAPContext():
global _contexts
return _contexts[thread.get_ident()]
################################################################################
# Server
################################################################################
# Method Signature class for adding extra info to registered funcs, right now
# used just to indicate it should be called with keywords, instead of ordered
# params.
class MethodSig:
def __init__(self, func, keywords=0, context=0):
self.func = func
self.keywords = keywords
self.context = context
self.__name__ = func.__name__
def __call__(self, *args, **kw):
return apply(self.func,args,kw)
class SOAPContext:
def __init__(self, header, body, attrs, xmldata, connection, httpheaders,
soapaction):
self.header = header
self.body = body
self.attrs = attrs
self.xmldata = xmldata
self.connection = connection
self.httpheaders= httpheaders
self.soapaction = soapaction
# A class to describe how header messages are handled
class HeaderHandler:
# Initially fail out if there are any problems.
def __init__(self, header, attrs):
for i in header.__dict__.keys():
if i[0] == "_":
continue
d = getattr(header, i)
try:
fault = int(attrs[id(d)][(NS.ENV, 'mustUnderstand')])
except:
fault = 0
if fault:
raise faultType, ("%s:MustUnderstand" % NS.ENV_T,
"Required Header Misunderstood",
"%s" % i)
################################################################################
# SOAP Server
################################################################################
class SOAPServerBase:
def get_request(self):
sock, addr = SocketServer.TCPServer.get_request(self)
if self.ssl_context:
sock = SSL.Connection(self.ssl_context, sock)
sock._setup_ssl(addr)
if sock.accept_ssl() != 1:
raise socket.error, "Couldn't accept SSL connection"
return sock, addr
def registerObject(self, object, namespace = '', path = ''):
if namespace == '' and path == '': namespace = self.namespace
if namespace == '' and path != '':
namespace = path.replace("/", ":")
if namespace[0] == ":": namespace = namespace[1:]
self.objmap[namespace] = object
def registerFunction(self, function, namespace = '', funcName = None,
path = ''):
if not funcName : funcName = function.__name__
if namespace == '' and path == '': namespace = self.namespace
if namespace == '' and path != '':
namespace = path.replace("/", ":")
if namespace[0] == ":": namespace = namespace[1:]
if self.funcmap.has_key(namespace):
self.funcmap[namespace][funcName] = function
else:
self.funcmap[namespace] = {funcName : function}
def registerKWObject(self, object, namespace = '', path = ''):
if namespace == '' and path == '': namespace = self.namespace
if namespace == '' and path != '':
namespace = path.replace("/", ":")
if namespace[0] == ":": namespace = namespace[1:]
for i in dir(object.__class__):
if i[0] != "_" and callable(getattr(object, i)):
self.registerKWFunction(getattr(object,i), namespace)
# convenience - wraps your func for you.
def registerKWFunction(self, function, namespace = '', funcName = None,
path = ''):
if namespace == '' and path == '': namespace = self.namespace
if namespace == '' and path != '':
namespace = path.replace("/", ":")
if namespace[0] == ":": namespace = namespace[1:]
self.registerFunction(MethodSig(function,keywords=1), namespace,
funcName)
def unregisterObject(self, object, namespace = '', path = ''):
if namespace == '' and path == '': namespace = self.namespace
if namespace == '' and path != '':
namespace = path.replace("/", ":")
if namespace[0] == ":": namespace = namespace[1:]
del self.objmap[namespace]
class SOAPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
def version_string(self):
return '<a href="http://pywebsvcs.sf.net">' + \
'SOAPpy ' + __version__ + '</a> (Python ' + \
sys.version.split()[0] + ')'
def date_time_string(self):
self.__last_date_time_string = \
BaseHTTPServer.BaseHTTPRequestHandler.\
date_time_string(self)
return self.__last_date_time_string
def do_POST(self):
global _contexts
status = 500
try:
if self.server.config.dumpHeadersIn:
s = 'Incoming HTTP headers'
debugHeader(s)
print self.raw_requestline.strip()
print "\n".join(map (lambda x: x.strip(),
self.headers.headers))
debugFooter(s)
data = self.rfile.read(int(self.headers["Content-length"]))
if self.server.config.dumpSOAPIn:
s = 'Incoming SOAP'
debugHeader(s)
print data,
if data[-1] != '\n':
print
debugFooter(s)
(r, header, body, attrs) = \
parseSOAPRPC(data, header = 1, body = 1, attrs = 1)
method = r._name
args = r._aslist()
kw = r._asdict()
if Config.simplify_objects:
args = simplify(args)
kw = simplify(kw)
# Handle mixed named and unnamed arguments by assuming
# that all arguments with names of the form "v[0-9]+"
# are unnamed and should be passed in numeric order,
# other arguments are named and should be passed using
# this name.
# This is a non-standard exension to the SOAP protocol,
# but is supported by Apache AXIS.
# It is enabled by default. To disable, set
# Config.specialArgs to False.
if Config.specialArgs:
ordered_args = {}
named_args = {}
for (k,v) in kw.items():
if k[0]=="v":
try:
i = int(k[1:])
ordered_args[i] = v
except ValueError:
named_args[str(k)] = v
else:
named_args[str(k)] = v
# We have to decide namespace precedence
# I'm happy with the following scenario
# if r._ns is specified use it, if not check for
# a path, if it's specified convert it and use it as the
# namespace. If both are specified, use r._ns.
ns = r._ns
if len(self.path) > 1 and not ns:
ns = self.path.replace("/", ":")
if ns[0] == ":": ns = ns[1:]
# authorization method
a = None
keylist = ordered_args.keys()
keylist.sort()
# create list in proper order w/o names
tmp = map( lambda x: ordered_args[x], keylist)
ordered_args = tmp
#print '<-> Argument Matching Yielded:'
#print '<-> Ordered Arguments:' + str(ordered_args)
#print '<-> Named Arguments :' + str(named_args)
resp = ""
# For fault messages
if ns:
nsmethod = "%s:%s" % (ns, method)
else:
nsmethod = method
try:
# First look for registered functions
if self.server.funcmap.has_key(ns) and \
self.server.funcmap[ns].has_key(method):
f = self.server.funcmap[ns][method]
# look for the authorization method
if self.server.config.authMethod != None:
authmethod = self.server.config.authMethod
if self.server.funcmap.has_key(ns) and \
self.server.funcmap[ns].has_key(authmethod):
a = self.server.funcmap[ns][authmethod]
else:
# Now look at registered objects
# Check for nested attributes. This works even if
# there are none, because the split will return
# [method]
f = self.server.objmap[ns]
# Look for the authorization method
if self.server.config.authMethod != None:
authmethod = self.server.config.authMethod
if hasattr(f, authmethod):
a = getattr(f, authmethod)
# then continue looking for the method
l = method.split(".")
for i in l:
f = getattr(f, i)
except:
info = sys.exc_info()
try:
resp = buildSOAP(faultType("%s:Client" % NS.ENV_T,
"Method Not Found",
"%s : %s %s %s" % (nsmethod,
info[0],
info[1],
info[2])),
encoding = self.server.encoding,
config = self.server.config)
finally:
del info
status = 500
else:
try:
if header:
x = HeaderHandler(header, attrs)
fr = 1
# call context book keeping
# We're stuffing the method into the soapaction if there
# isn't one, someday, we'll set that on the client
# and it won't be necessary here
# for now we're doing both
if "SOAPAction".lower() not in self.headers.keys() or \
self.headers["SOAPAction"] == "\"\"":
self.headers["SOAPAction"] = method
thread_id = thread.get_ident()
_contexts[thread_id] = SOAPContext(header, body,
attrs, data,
self.connection,
self.headers,
self.headers["SOAPAction"])
# Do an authorization check
if a != None:
if not apply(a, (), {"_SOAPContext" :
_contexts[thread_id] }):
raise faultType("%s:Server" % NS.ENV_T,
"Authorization failed.",
"%s" % nsmethod)
# If it's wrapped, some special action may be needed
if isinstance(f, MethodSig):
c = None
if f.context: # retrieve context object
c = _contexts[thread_id]
if Config.specialArgs:
if c:
named_args["_SOAPContext"] = c
fr = apply(f, ordered_args, named_args)
elif f.keywords:
# This is lame, but have to de-unicode
# keywords
strkw = {}
for (k, v) in kw.items():
strkw[str(k)] = v
if c:
strkw["_SOAPContext"] = c
fr = apply(f, (), strkw)
elif c:
fr = apply(f, args, {'_SOAPContext':c})
else:
fr = apply(f, args, {})
else:
if Config.specialArgs:
fr = apply(f, ordered_args, named_args)
else:
fr = apply(f, args, {})
if type(fr) == type(self) and \
isinstance(fr, voidType):
resp = buildSOAP(kw = {'%sResponse' % method: fr},
encoding = self.server.encoding,
config = self.server.config)
else:
resp = buildSOAP(kw =
{'%sResponse' % method: {'Result': fr}},
encoding = self.server.encoding,
config = self.server.config)
# Clean up _contexts
if _contexts.has_key(thread_id):
del _contexts[thread_id]
except Exception, e:
import traceback
info = sys.exc_info()
try:
if self.server.config.dumpFaultInfo:
s = 'Method %s exception' % nsmethod
debugHeader(s)
traceback.print_exception(info[0], info[1],
info[2])
debugFooter(s)
if isinstance(e, faultType):
f = e
else:
f = faultType("%s:Server" % NS.ENV_T,
"Method Failed",
"%s" % nsmethod)
if self.server.config.returnFaultInfo:
f._setDetail("".join(traceback.format_exception(
info[0], info[1], info[2])))
elif not hasattr(f, 'detail'):
f._setDetail("%s %s" % (info[0], info[1]))
finally:
del info
resp = buildSOAP(f, encoding = self.server.encoding,
config = self.server.config)
status = 500
else:
status = 200
except faultType, e:
import traceback
info = sys.exc_info()
try:
if self.server.config.dumpFaultInfo:
s = 'Received fault exception'
debugHeader(s)
traceback.print_exception(info[0], info[1],
info[2])
debugFooter(s)
if self.server.config.returnFaultInfo:
e._setDetail("".join(traceback.format_exception(
info[0], info[1], info[2])))
elif not hasattr(e, 'detail'):
e._setDetail("%s %s" % (info[0], info[1]))
finally:
del info
resp = buildSOAP(e, encoding = self.server.encoding,
config = self.server.config)
status = 500
except Exception, e:
# internal error, report as HTTP server error
if self.server.config.dumpFaultInfo:
s = 'Internal exception %s' % e
import traceback
debugHeader(s)
info = sys.exc_info()
try:
traceback.print_exception(info[0], info[1], info[2])
finally:
del info
debugFooter(s)
self.send_response(500)
self.end_headers()
if self.server.config.dumpHeadersOut and \
self.request_version != 'HTTP/0.9':
s = 'Outgoing HTTP headers'
debugHeader(s)
if self.responses.has_key(status):
s = ' ' + self.responses[status][0]
else:
s = ''
print "%s %d%s" % (self.protocol_version, 500, s)
print "Server:", self.version_string()
print "Date:", self.__last_date_time_string
debugFooter(s)
else:
# got a valid SOAP response
self.send_response(status)
t = 'text/xml';
if self.server.encoding != None:
t += '; charset="%s"' % self.server.encoding
self.send_header("Content-type", t)
self.send_header("Content-length", str(len(resp)))
self.end_headers()
if self.server.config.dumpHeadersOut and \
self.request_version != 'HTTP/0.9':
s = 'Outgoing HTTP headers'
debugHeader(s)
if self.responses.has_key(status):
s = ' ' + self.responses[status][0]
else:
s = ''
print "%s %d%s" % (self.protocol_version, status, s)
print "Server:", self.version_string()
print "Date:", self.__last_date_time_string
print "Content-type:", t
print "Content-length:", len(resp)
debugFooter(s)
if self.server.config.dumpSOAPOut:
s = 'Outgoing SOAP'
debugHeader(s)
print resp,
if resp[-1] != '\n':
print
debugFooter(s)
self.wfile.write(resp)
self.wfile.flush()
# We should be able to shut down both a regular and an SSL
# connection, but under Python 2.1, calling shutdown on an
# SSL connections drops the output, so this work-around.
# This should be investigated more someday.
if self.server.config.SSLserver and \
isinstance(self.connection, SSL.Connection):
self.connection.set_shutdown(SSL.SSL_SENT_SHUTDOWN |
SSL.SSL_RECEIVED_SHUTDOWN)
else:
self.connection.shutdown(1)
def do_GET(self):
#print 'command ', self.command
#print 'path ', self.path
#print 'request_version', self.request_version
#print 'headers'
#print ' type ', self.headers.type
#print ' maintype', self.headers.maintype
#print ' subtype ', self.headers.subtype
#print ' params ', self.headers.plist
path = self.path.lower()
if path.endswith('wsdl'):
method = 'wsdl'
function = namespace = None
if self.server.funcmap.has_key(namespace) \
and self.server.funcmap[namespace].has_key(method):
function = self.server.funcmap[namespace][method]
else:
if namespace in self.server.objmap.keys():
function = self.server.objmap[namespace]
l = method.split(".")
for i in l:
function = getattr(function, i)
if function:
self.send_response(200)
self.send_header("Content-type", 'text/plain')
self.end_headers()
response = apply(function, ())
self.wfile.write(str(response))
return
# return error
self.send_response(200)
self.send_header("Content-type", 'text/html')
self.end_headers()
self.wfile.write('''\
<title>
<head>Error!</head>
</title>
<body>
<h1>Oops!</h1>
<p>
This server supports HTTP GET requests only for the the purpose of
obtaining Web Services Description Language (WSDL) for a specific
service.
Either you requested an URL that does not end in "wsdl" or this
server does not implement a wsdl method.
</p>
</body>''')
def log_message(self, format, *args):
if self.server.log:
BaseHTTPServer.BaseHTTPRequestHandler.\
log_message (self, format, *args)
class SOAPServer(SOAPServerBase, SocketServer.TCPServer):
def __init__(self, addr = ('localhost', 8000),
RequestHandler = SOAPRequestHandler, log = 0, encoding = 'UTF-8',
config = Config, namespace = None, ssl_context = None):
# Test the encoding, raising an exception if it's not known
if encoding != None:
''.encode(encoding)
if ssl_context != None and not config.SSLserver:
raise AttributeError, \
"SSL server not supported by this Python installation"
self.namespace = namespace
self.objmap = {}
self.funcmap = {}
self.ssl_context = ssl_context
self.encoding = encoding
self.config = config
self.log = log
self.allow_reuse_address= 1
SocketServer.TCPServer.__init__(self, addr, RequestHandler)
class ThreadingSOAPServer(SOAPServerBase, SocketServer.ThreadingTCPServer):
def __init__(self, addr = ('localhost', 8000),
RequestHandler = SOAPRequestHandler, log = 0, encoding = 'UTF-8',
config = Config, namespace = None, ssl_context = None):
# Test the encoding, raising an exception if it's not known
if encoding != None:
''.encode(encoding)
if ssl_context != None and not config.SSLserver:
raise AttributeError, \
"SSL server not supported by this Python installation"
self.namespace = namespace
self.objmap = {}
self.funcmap = {}
self.ssl_context = ssl_context
self.encoding = encoding
self.config = config
self.log = log
self.allow_reuse_address= 1
SocketServer.ThreadingTCPServer.__init__(self, addr, RequestHandler)
# only define class if Unix domain sockets are available
if hasattr(socket, "AF_UNIX"):
class SOAPUnixSocketServer(SOAPServerBase, SocketServer.UnixStreamServer):
def __init__(self, addr = 8000,
RequestHandler = SOAPRequestHandler, log = 0, encoding = 'UTF-8',
config = Config, namespace = None, ssl_context = None):
# Test the encoding, raising an exception if it's not known
if encoding != None:
''.encode(encoding)
if ssl_context != None and not config.SSLserver:
raise AttributeError, \
"SSL server not supported by this Python installation"
self.namespace = namespace
self.objmap = {}
self.funcmap = {}
self.ssl_context = ssl_context
self.encoding = encoding
self.config = config
self.log = log
self.allow_reuse_address= 1
SocketServer.UnixStreamServer.__init__(self, str(addr), RequestHandler)
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