Source Code for Module ndg.saml.common.xml

  1  """SAML Common XML module 
  2   
  3  Implementation of SAML 2.0 for NDG Security 
  4   
  5  NERC DataGrid Project 
  6   
  7  This implementation is adapted from the Java OpenSAML implementation.  The  
  8  copyright and licence information are included here: 
  9   
 10  Copyright [2005] [University Corporation for Advanced Internet Development, Inc.] 
 11   
 12  Licensed under the Apache License, Version 2.0 (the "License"); 
 13  you may not use this file except in compliance with the License. 
 14  You may obtain a copy of the License at 
 15   
 16  http://www.apache.org/licenses/LICENSE-2.0 
 17   
 18  Unless required by applicable law or agreed to in writing, software 
 19  distributed under the License is distributed on an "AS IS" BASIS, 
 20  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 21  See the License for the specific language governing permissions and 
 22  limitations under the License. 
 23  """ 
 24  __author__ = "P J Kershaw" 
 25  __date__ = "23/07/09" 
 26  __copyright__ = "(C) 2009 Science and Technology Facilities Council" 
 27  __contact__ = "Philip.Kershaw@stfc.ac.uk" 
 28  __license__ = "http://www.apache.org/licenses/LICENSE-2.0" 
 29  __contact__ = "Philip.Kershaw@stfc.ac.uk" 
 30  __revision__ = "$Id: xml.py 8009 2012-01-30 16:19:43Z rwilkinson $" 
 31  from ndg.saml.xml import XMLConstants     
 32   
 33   
 34 -class SAMLConstants(XMLConstants): 
 35      '''XML related constants used in the SAML specifications. 
 36      @cvar POST_METHOD: HTTP Request Method - POST.                            
 37      @type POST_METHOD: string                                                  
 38      @cvar GET_METHOD: HTTP Method - GET.                                      
 39      @type GET_METHOD: string                                                   
 40      @cvar SCHEMA_DIR: Directory, on the classpath, schemas are located in.    
 41      @type SCHEMA_DIR: string                                                   
 42      @cvar XML_SCHEMA_LOCATION: XML core schema system Id.                     
 43      @type XML_SCHEMA_LOCATION: string                                          
 44      @cvar XMLSIG_SCHEMA_LOCATION:  XML Signature schema Id.                   
 45      @type XMLSIG_SCHEMA_LOCATION: string                                       
 46      @cvar XMLENC_SCHEMA_LOCATION: XML Encryption schema Id.                   
 47      @type XMLENC_SCHEMA_LOCATION: string                                       
 48      @cvar SOAP11ENV_SCHEMA_LOCATION:  SOAP 1.1 schema Id.                     
 49      @type SOAP11ENV_SCHEMA_LOCATION: string                                    
 50      @cvar SOAP11ENV_NS:  SOAP 1.1 Envelope XML namespace.                     
 51      @type SOAP11ENV_NS: string                                                 
 52      @cvar SOAP11ENV_PREFIX:  SOAP 1.1 Envelope QName prefix.                  
 53      @type SOAP11ENV_PREFIX: string                                             
 54      @cvar PAOS_NS:  Liberty PAOS XML Namespace.                               
 55      @type PAOS_NS: string                                                      
 56      @cvar PAOS_PREFIX:  Liberty PAOS QName prefix.                            
 57      @type PAOS_PREFIX: string                                                  
 58      @cvar SAML10_SCHEMA_LOCATION: SAML 1.0 Assertion schema system Id.        
 59      @type SAML10_SCHEMA_LOCATION: string                                       
 60      @cvar SAML11_SCHEMA_LOCATION: SAML 1.1 Assertion schema system Id.        
 61      @type SAML11_SCHEMA_LOCATION: string                                       
 62      @cvar SAML1_NS: SAML 1.X XML namespace.                                   
 63      @type SAML1_NS: string                                                     
 64      @cvar SAML10P_SCHEMA_LOCATION: SAML 1.0 Protocol schema system Id.        
 65      @type SAML10P_SCHEMA_LOCATION: string                                      
 66      @cvar SAML11P_SCHEMA_LOCATION: SAML 1.1 Protocol schema system Id.        
 67      @type SAML11P_SCHEMA_LOCATION: string                                      
 68      @cvar SAML10P_NS: SAML 1.X protocol XML namespace.                        
 69      @type SAML10P_NS: string                                                   
 70      @cvar SAML11P_NS: SupportEnumeration.                                     
 71      @type SAML11P_NS: string                                                   
 72      @cvar SAML1P_PREFIX: SAML 1.X Protocol QName prefix.                      
 73      @type SAML1P_PREFIX: string                                                
 74      @cvar SAML1_PREFIX: SAML 1.X Assertion QName prefix.                      
 75      @type SAML1_PREFIX: string                                                 
 76      @cvar SAML1MD_NS: SAML 1 Metadata extension XML namespace.                
 77      @type SAML1MD_NS: string                                                   
 78      @cvar SAML1MD_SCHEMA_LOCATION: SAML 1 Metadata extension schema system Id. 
 79      @type SAML1MD_SCHEMA_LOCATION: string                                       
 80      @cvar SAML1MD_PREFIX: SAML 1 Metadata extension namespace prefix.          
 81      @type SAML1MD_PREFIX: string                                                
 82      @cvar SAML1_ARTIFACT_BINDING_URI: URI for SAML 1 Artifact binding.         
 83      @type SAML1_ARTIFACT_BINDING_URI: string                                    
 84      @cvar SAML1_POST_BINDING_URI: URI for SAML 1 POST binding.                 
 85      @type SAML1_POST_BINDING_URI: string                                        
 86      @cvar SAML1_SOAP11_BINDING_URI: URI for SAML 1 SOAP 1.1 binding.           
 87      @type SAML1_SOAP11_BINDING_URI: string                                      
 88      @cvar SAML20_SCHEMA_LOCATION: SAML 2.0 Assertion schema Id.                
 89      @type SAML20_SCHEMA_LOCATION: string                                        
 90      @cvar SAML20_NS: SAML 2.0 Assertion XML Namespace.                         
 91      @type SAML20_NS: string                                                     
 92      @cvar SAML20_PREFIX: SAML 2.0 Assertion QName prefix.                      
 93      @type SAML20_PREFIX: string                                                 
 94      @cvar SAML20P_SCHEMA_LOCATION: SAML 2.0 Protocol schema Id.                
 95      @type SAML20P_SCHEMA_LOCATION: string                                       
 96      @cvar SAML20P_NS: SAML 2.0 Protocol XML Namespace.                         
 97      @type SAML20P_NS: string                                                    
 98      @cvar SAML20P_PREFIX: SAML 2.0 Protocol QName prefix.                      
 99      @type SAML20P_PREFIX: string                                                
100      @cvar SAML20PTHRPTY_SCHEMA_LOCATION: SAML 2.0 Protocol Third-party extension schema Id. 
101      @type SAML20PTHRPTY_SCHEMA_LOCATION: string                                              
102      @cvar SAML20PTHRPTY_NS: SAML 2.0 Protocol XML Namespace.                                
103      @type SAML20PTHRPTY_NS: string                                                           
104      @cvar SAML20PTHRPTY_PREFIX: SAML 2.0 Protocol QName prefix.                             
105      @type SAML20PTHRPTY_PREFIX: string                                                       
106      @cvar SAML20MD_SCHEMA_LOCATION: SAML 2.0 Metadata schema Id.                            
107      @type SAML20MD_SCHEMA_LOCATION: string                                                   
108      @cvar SAML20MD_NS: SAML 2.0 Metadata XML Namespace.                                     
109      @type SAML20MD_NS: string                                                                
110      @cvar SAML20MDQUERY_NS: SAML 2.0 Standalone Query Metadata extension XML namespace.     
111      @type SAML20MDQUERY_NS: string                                                           
112      @cvar SAML20MDQUERY_SCHEMA_LOCATION: SAML 2.0 Standalone Query Metadata extension schema system Id. 
113      @type SAML20MDQUERY_SCHEMA_LOCATION: string                                                          
114      @cvar SAML20MDQUERY_PREFIX: SAML 2.0 Standalone Query Metadata extension prefix.                    
115      @type SAML20MDQUERY_PREFIX: string                                                                   
116      @cvar SAML20MD_PREFIX: SAML 2.0 Metadata QName prefix. 
117      @type SAML20MD_PREFIX: string 
118      @cvar SAML20AC_SCHEMA_LOCATION: SAML 2.0 Authentication Context schema Id. 
119      @type SAML20AC_SCHEMA_LOCATION: string 
120      @cvar SAML20AC_NS: SAML 2.0 Authentication Context XML Namespace. 
121      @type SAML20AC_NS: string 
122      @cvar SAML20AC_PREFIX: SAML 2.0 Authentication Context QName prefix. 
123      @type SAML20AC_PREFIX: string 
124      @cvar SAML20ECP_SCHEMA_LOCATION: SAML 2.0 Enhanced Client/Proxy SSO Profile schema Id. 
125      @type SAML20ECP_SCHEMA_LOCATION: string 
126      @cvar SAML20ECP_NS: SAML 2.0 Enhanced Client/Proxy SSO Profile XML Namespace. 
127      @type SAML20ECP_NS: string 
128      @cvar SAML20ECP_PREFIX: SAML 2.0 Enhanced Client/Proxy SSO Profile QName prefix. 
129      @type SAML20ECP_PREFIX: string 
130      @cvar SAML20DCE_SCHEMA_LOCATION: SAML 2.0 DCE PAC Attribute Profile schema Id. 
131      @type SAML20DCE_SCHEMA_LOCATION: string 
132      @cvar SAML20DCE_NS: SAML 2.0 DCE PAC Attribute Profile XML Namespace. 
133      @type SAML20DCE_NS: string 
134      @cvar SAML20DCE_PREFIX: SAML 2.0 DCE PAC Attribute Profile QName prefix. 
135      @type SAML20DCE_PREFIX: string 
136      @cvar SAML20X500_SCHEMA_LOCATION: SAML 2.0 X.500 Attribute Profile schema Id. 
137      @type SAML20X500_SCHEMA_LOCATION: string 
138      @cvar SAML20X500_NS: SAML 2.0 X.500 Attribute Profile XML Namespace. 
139      @type SAML20X500_NS: string 
140      @cvar SAML20X500_PREFIX: SAML 2.0 X.500 Attribute Profile QName prefix. 
141      @type SAML20X500_PREFIX: string 
142      @cvar SAML20XACML_SCHEMA_LOCATION: SAML 2.0 XACML Attribute Profile schema Id. 
143      @type SAML20XACML_SCHEMA_LOCATION: string 
144      @cvar SAML20XACML_NS: SAML 2.0 XACML Attribute Profile XML Namespace. 
145      @type SAML20XACML_NS: string 
146      @cvar SAML20XACML_PREFIX: SAML 2.0 XACML Attribute Profile QName prefix. 
147      @type SAML20XACML_PREFIX: string 
148      @cvar SAML2_ARTIFACT_BINDING_URI: URI for SAML 2 Artifact binding. 
149      @type SAML2_ARTIFACT_BINDING_URI: string 
150      @cvar SAML2_POST_BINDING_URI: URI for SAML 2 POST binding. 
151      @type SAML2_POST_BINDING_URI: string 
152      @cvar SAML2_POST_SIMPLE_SIGN_BINDING_URI: URI for SAML 2 POST-SimpleSign binding. 
153      @type SAML2_POST_SIMPLE_SIGN_BINDING_URI: string 
154      @cvar SAML2_REDIRECT_BINDING_URI: URI for SAML 2 HTTP redirect binding. 
155      @type SAML2_REDIRECT_BINDING_URI: string 
156      @cvar SAML2_SOAP11_BINDING_URI: URI for SAML 2 SOAP binding. 
157      @type SAML2_SOAP11_BINDING_URI: string 
158      ''' 
159       
160      # HTTP Constants 
161       
162      # HTTP Request Method - POST. 
163      POST_METHOD = "POST" 
164       
165      # HTTP Method - GET. 
166      GET_METHOD = "GET" 
167       
168      # OpenSAML 2 
169       
170      # Directory, on the classpath, schemas are located in. 
171      SCHEMA_DIR = "/schema/" 
172       
173      #    Core XML 
174       
175      # XML core schema system Id. 
176      XML_SCHEMA_LOCATION = SCHEMA_DIR + "xml.xsd" 
177       
178      #  XML Signature schema Id. 
179      XMLSIG_SCHEMA_LOCATION = SCHEMA_DIR + "xmldsig-core-schema.xsd" 
180       
181      # XML Encryption schema Id. 
182      XMLENC_SCHEMA_LOCATION = SCHEMA_DIR + "xenc-schema.xsd" 
183   
184       
185      #    SOAP 
186       
187      #  SOAP 1.1 schema Id. 
188      SOAP11ENV_SCHEMA_LOCATION = SCHEMA_DIR + SCHEMA_DIR + "soap-envelope.xsd" 
189       
190      #  SOAP 1.1 Envelope XML namespace. 
191      SOAP11ENV_NS = "http://schemas.xmlsoap.org/soap/envelope/" 
192       
193      #  SOAP 1.1 Envelope QName prefix. 
194      SOAP11ENV_PREFIX = "SOAP-ENV" 
195       
196      #  Liberty PAOS XML Namespace. 
197      PAOS_NS = "urn:liberty:paos:2003-08" 
198       
199      #  Liberty PAOS QName prefix. 
200      PAOS_PREFIX = "paos" 
201       
202      #    SAML 1.X 
203       
204      # SAML 1.0 Assertion schema system Id. 
205      SAML10_SCHEMA_LOCATION = SCHEMA_DIR + "cs-sstc-schema-assertion-01.xsd" 
206       
207      # SAML 1.1 Assertion schema system Id. 
208      SAML11_SCHEMA_LOCATION = SCHEMA_DIR + "cs-sstc-schema-assertion-1.1.xsd" 
209       
210      # SAML 1.X XML namespace. 
211      SAML1_NS = "urn:oasis:names:tc:SAML:1.0:assertion" 
212       
213      # SAML 1.0 Protocol schema system Id. 
214      SAML10P_SCHEMA_LOCATION = SCHEMA_DIR + "cs-sstc-schema-protocol-01.xsd" 
215       
216      # SAML 1.1 Protocol schema system Id. 
217      SAML11P_SCHEMA_LOCATION = SCHEMA_DIR + "cs-sstc-schema-protocol-1.1.xsd" 
218   
219      # SAML 1.X protocol XML namespace. 
220      SAML10P_NS = "urn:oasis:names:tc:SAML:1.0:protocol" 
221       
222      # SAML 1.1 protocol XML namespace, used only in SAML 2 metadata protocol 
223      # SupportEnumeration. 
224      SAML11P_NS = "urn:oasis:names:tc:SAML:1.1:protocol" 
225       
226      # SAML 1.X Protocol QName prefix. 
227      SAML1P_PREFIX = "samlp" 
228   
229      # SAML 1.X Assertion QName prefix. 
230      SAML1_PREFIX = "saml" 
231       
232      # SAML 1 Metadata extension XML namespace. 
233      SAML1MD_NS = "urn:oasis:names:tc:SAML:profiles:v1metadata" 
234       
235      # SAML 1 Metadata extension schema system Id. 
236      SAML1MD_SCHEMA_LOCATION = SCHEMA_DIR + "sstc-saml1x-metadata.xsd" 
237       
238      # SAML 1 Metadata extension namespace prefix. 
239      SAML1MD_PREFIX = "saml1md" 
240       
241      # URI for SAML 1 Artifact binding. 
242      SAML1_ARTIFACT_BINDING_URI = \ 
243          "urn:oasis:names:tc:SAML:1.0:profiles:artifact-01" 
244       
245      # URI for SAML 1 POST binding. 
246      SAML1_POST_BINDING_URI = \ 
247          "urn:oasis:names:tc:SAML:1.0:profiles:browser-post" 
248       
249      # URI for SAML 1 SOAP 1.1 binding. 
250      SAML1_SOAP11_BINDING_URI = \ 
251          "urn:oasis:names:tc:SAML:1.0:bindings:SOAP-binding" 
252       
253      #    SAML 2.0 
254       
255      # SAML 2.0 Assertion schema Id. 
256      SAML20_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-assertion-2.0.xsd" 
257       
258      # SAML 2.0 Assertion XML Namespace. 
259      SAML20_NS = "urn:oasis:names:tc:SAML:2.0:assertion" 
260       
261      # SAML 2.0 Assertion QName prefix. 
262      SAML20_PREFIX ="saml" 
263       
264      # SAML 2.0 Protocol schema Id. 
265      SAML20P_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-protocol-2.0.xsd" 
266       
267      # SAML 2.0 Protocol XML Namespace. 
268      SAML20P_NS = "urn:oasis:names:tc:SAML:2.0:protocol" 
269       
270      # SAML 2.0 Protocol QName prefix. 
271      SAML20P_PREFIX ="samlp" 
272       
273      # SAML 2.0 Protocol Third-party extension schema Id. 
274      SAML20PTHRPTY_SCHEMA_LOCATION = SCHEMA_DIR + \ 
275                                      "sstc-saml-protocol-ext-thirdparty.xsd" 
276       
277      # SAML 2.0 Protocol XML Namespace. 
278      SAML20PTHRPTY_NS = "urn:oasis:names:tc:SAML:protocol:ext:third-party" 
279       
280      # SAML 2.0 Protocol QName prefix. 
281      SAML20PTHRPTY_PREFIX ="thrpty" 
282       
283      # SAML 2.0 Metadata schema Id. 
284      SAML20MD_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-metadata-2.0.xsd" 
285       
286      # SAML 2.0 Metadata XML Namespace. 
287      SAML20MD_NS ="urn:oasis:names:tc:SAML:2.0:metadata" 
288       
289      # SAML 2.0 Standalone Query Metadata extension XML namespace. 
290      SAML20MDQUERY_NS = "urn:oasis:names:tc:SAML:metadata:ext:query" 
291       
292      # SAML 2.0 Standalone Query Metadata extension schema system Id. 
293      SAML20MDQUERY_SCHEMA_LOCATION = SCHEMA_DIR + \ 
294                                      "sstc-saml-metadata-ext-query.xsd" 
295       
296      # SAML 2.0 Standalone Query Metadata extension prefix. 
297      SAML20MDQUERY_PREFIX = "query" 
298       
299      # SAML 2.0 Metadata QName prefix. 
300      SAML20MD_PREFIX = "md" 
301       
302      # SAML 2.0 Authentication Context schema Id. 
303      SAML20AC_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-authn-context-2.0.xsd" 
304       
305      # SAML 2.0 Authentication Context XML Namespace. 
306      SAML20AC_NS ="urn:oasis:names:tc:SAML:2.0:ac" 
307       
308      # SAML 2.0 Authentication Context QName prefix. 
309      SAML20AC_PREFIX = "ac" 
310       
311      # SAML 2.0 Enhanced Client/Proxy SSO Profile schema Id. 
312      SAML20ECP_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-ecp-2.0.xsd" 
313       
314      # SAML 2.0 Enhanced Client/Proxy SSO Profile XML Namespace. 
315      SAML20ECP_NS = "urn:oasis:names:tc:SAML:2.0:profiles:SSO:ecp" 
316       
317      # SAML 2.0 Enhanced Client/Proxy SSO Profile QName prefix. 
318      SAML20ECP_PREFIX = "ecp" 
319       
320      # SAML 2.0 DCE PAC Attribute Profile schema Id. 
321      SAML20DCE_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-dce-2.0.xsd" 
322       
323      # SAML 2.0 DCE PAC Attribute Profile XML Namespace. 
324      SAML20DCE_NS = "urn:oasis:names:tc:SAML:2.0:profiles:attribute:DCE" 
325       
326      # SAML 2.0 DCE PAC Attribute Profile QName prefix. 
327      SAML20DCE_PREFIX = "DCE" 
328       
329      # SAML 2.0 X.500 Attribute Profile schema Id. 
330      SAML20X500_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-x500-2.0.xsd" 
331       
332      # SAML 2.0 X.500 Attribute Profile XML Namespace. 
333      SAML20X500_NS = "urn:oasis:names:tc:SAML:2.0:profiles:attribute:X500" 
334       
335      # SAML 2.0 X.500 Attribute Profile QName prefix. 
336      SAML20X500_PREFIX = "x500" 
337       
338      # SAML 2.0 XACML Attribute Profile schema Id. 
339      SAML20XACML_SCHEMA_LOCATION = SCHEMA_DIR + "saml-schema-xacml-2.0.xsd" 
340       
341      # SAML 2.0 XACML Attribute Profile XML Namespace. 
342      SAML20XACML_NS = "urn:oasis:names:tc:SAML:2.0:profiles:attribute:XACML" 
343       
344      # SAML 2.0 XACML Attribute Profile QName prefix. 
345      SAML20XACML_PREFIX = "xacmlprof" 
346       
347      # URI for SAML 2 Artifact binding. 
348      SAML2_ARTIFACT_BINDING_URI = \ 
349                          "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact" 
350       
351      # URI for SAML 2 POST binding. 
352      SAML2_POST_BINDING_URI = "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" 
353       
354      # URI for SAML 2 POST-SimpleSign binding. 
355      SAML2_POST_SIMPLE_SIGN_BINDING_URI = \ 
356                  "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST-SimpleSign" 
357       
358      # URI for SAML 2 HTTP redirect binding. 
359      SAML2_REDIRECT_BINDING_URI = \ 
360                  "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" 
361       
362      # URI for SAML 2 SOAP binding. 
363      SAML2_SOAP11_BINDING_URI = "urn:oasis:names:tc:SAML:2.0:bindings:SOAP" 
364     
365       
366      # SAML 2.0 profile for XACML 
367   
368      # SAML 2.0 profile for XACML assertion namespace 
369      SAML2_XACML_ASSERTION_NS = "urn:oasis:xacml:2.0:saml:assertion:schema:os" 
370   
371      # SAML 2.0 profile for XACML assertion QName prefix 
372      SAML2_XACML_ASSERTION_PREFIX = "xacml-saml" 
373   
374      # SAML 2.0 profile for XACML protocol namespace 
375      SAML2_XACML_PROTOCOL_NS = "urn:oasis:xacml:2.0:saml:protocol:schema:os" 
376   
377      # SAML 2.0 profile for XACML protocol QName prefix 
378      SAML2_XACML_PROTOCOL_PREFIX = "xacml-samlp" 
379   
380 -class QName(object): 
381      """XML Qualified Name 
382      @ivar __namespaceURI: the namespace the element is in 
383      @type __namespaceURI: basestring 
384      @ivar __localPart: the local name of the XML element  
385      @type __localPart: basestring 
386      @ivar __prefix: the prefix for the given namespace 
387      @type __prefix: basestring 
388      """  
389   
390 -    def __init__(self, namespaceURI, localPart, prefix): 
391          ''' 
392          @param namespaceURI: the namespace the element is in 
393          @type namespaceURI: basestring 
394          @param localPart: the local name of the XML element  
395          @type localPart: basestring 
396          @param prefix: the prefix for the given namespace 
397          @type prefix: basestring 
398          ''' 
399          self.namespaceURI = namespaceURI 
400          self.localPart = localPart 
401          self.prefix = prefix 
402       
403 -    def _getPrefix(self): 
404          """Get prefix 
405          @return: prefix 
406          @rtype: string 
407          """ 
408          return self.__prefix 
409   
410 -    def _setPrefix(self, value): 
411          """Set prefix 
412          @param value: prefix 
413          @type value: string 
414          @raise TypeError: invalid input value type 
415          """ 
416          if not isinstance(value, basestring): 
417              raise TypeError('Expected string type for "prefix"; got %r' % 
418                              type(value)) 
419          self.__prefix = value 
420       
421      prefix = property(_getPrefix, _setPrefix, None, "Namespace Prefix") 
422   
423 -    def _getLocalPart(self): 
424          """Get local part 
425          @return: local part 
426          @rtype: string 
427          """ 
428          return self.__localPart 
429       
430 -    def _setLocalPart(self, value): 
431          """Set local part 
432          @param value: local part 
433          @type value: string 
434          @raise TypeError: invalid input value type 
435          """ 
436          if not isinstance(value, basestring): 
437              raise TypeError('Expected string type for "localPart"; got %r' % 
438                              type(value)) 
439          self.__localPart = value 
440           
441      localPart = property(_getLocalPart, _setLocalPart, None, "LocalPart") 
442   
443 -    def _getNamespaceURI(self): 
444          """Get namespace URI 
445          @return: namespace URI 
446          @rtype: string 
447          """ 
448          return self.__namespaceURI 
449   
450 -    def _setNamespaceURI(self, value): 
451          """Set namespace URI 
452          @param value: namespace URI 
453          @type value: string 
454          @raise TypeError: invalid input value type 
455          """ 
456          if not isinstance(value, basestring): 
457              raise TypeError('Expected string type for "namespaceURI"; got %r' % 
458                              type(value)) 
459          self.__namespaceURI = value 
460     
461      namespaceURI = property(_getNamespaceURI, _setNamespaceURI, None,  
462                              "Namespace URI") 
463   
464 -    def __eq__(self, qname): 
465          """Enable equality check for QName 
466          @type qname: saml.common.xml.QName 
467          @param qname: Qualified Name to compare with self  
468          @return: True if input and this object match 
469          @rtype: bool 
470          @return: True if input and this object match 
471          @rtype: bool 
472          """ 
473          if not isinstance(qname, QName): 
474              raise TypeError('Expecting %r; got %r' % (QName, type(qname))) 
475                               
476          return (self.prefix, self.namespaceURI, self.localPart) == \ 
477                 (qname.prefix, qname.namespaceURI, qname.localPart) 
478   
479 -    def __ne__(self, qname): 
480          """Enable equality check for QName 
481          @type qname: saml.common.xml.QName 
482          @param qname: Qualified Name to compare with self  
483          @return: True if input and this object don't match 
484          @rtype: bool 
485          """ 
486          return not self.__eq__(qname) 
487