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109 lines
3.2 KiB
109 lines
3.2 KiB
# This program is free software; you can redistribute it and/or modify
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# it under the terms of the (LGPL) GNU Lesser General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Library Lesser General Public License for more details at
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# ( http://www.gnu.org/licenses/lgpl.html ).
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# written by: Jeff Ortel ( jortel@redhat.com )
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"""
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The sax module contains a collection of classes that provide a
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(D)ocument (O)bject (M)odel representation of an XML document.
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The goal is to provide an easy, intuative interface for managing XML
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documents. Although, the term, DOM, is used above, this model is
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B{far} better.
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XML namespaces in suds are represented using a (2) element tuple
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containing the prefix and the URI. Eg: I{('tns', 'http://myns')}
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@var encoder: A I{pluggable} XML special character processor used to
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encode/decode strings.
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@type encoder: L{Encoder}
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"""
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from suds.sax.enc import Encoder
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#
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# pluggable XML special character encoder.
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#
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encoder = Encoder()
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def splitPrefix(name):
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"""
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Split the name into a tuple (I{prefix}, I{name}). The first element in
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the tuple is I{None} when the name does't have a prefix.
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@param name: A node name containing an optional prefix.
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@type name: basestring
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@return: A tuple containing the (2) parts of I{name}
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@rtype: (I{prefix}, I{name})
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"""
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if isinstance(name, basestring) \
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and ':' in name:
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return tuple(name.split(':', 1))
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else:
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return (None, name)
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class Namespace:
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"""
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The namespace class represents XML namespaces.
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"""
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default = (None, None)
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xmlns = ('xml', 'http://www.w3.org/XML/1998/namespace')
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xsdns = ('xs', 'http://www.w3.org/2001/XMLSchema')
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xsins = ('xsi', 'http://www.w3.org/2001/XMLSchema-instance')
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all = (xsdns, xsins)
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@classmethod
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def create(cls, p=None, u=None):
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return (p, u)
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@classmethod
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def none(cls, ns):
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return ( ns == cls.default )
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@classmethod
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def xsd(cls, ns):
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try:
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return cls.w3(ns) and ns[1].endswith('XMLSchema')
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except:
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pass
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return False
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@classmethod
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def xsi(cls, ns):
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try:
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return cls.w3(ns) and ns[1].endswith('XMLSchema-instance')
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except:
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pass
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return False
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@classmethod
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def xs(cls, ns):
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return ( cls.xsd(ns) or cls.xsi(ns) )
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@classmethod
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def w3(cls, ns):
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try:
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return ns[1].startswith('http://www.w3.org')
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except:
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pass
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return False
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@classmethod
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def isns(cls, ns):
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try:
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return isinstance(ns, tuple) and len(ns) == len(cls.default)
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except:
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pass
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return False
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