162 lines
4.8 KiB
Python
162 lines
4.8 KiB
Python
"""
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@file credentials.py
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@date 2008-09-16
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Contributors can be viewed at:
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http://svn.secondlife.com/svn/linden/projects/2008/pyogp/CONTRIBUTORS.txt
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$LicenseInfo:firstyear=2008&license=apachev2$
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Copyright 2008, Linden Research, Inc.
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Licensed under the Apache License, Version 2.0 (the "License").
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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or in
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http://svn.secondlife.com/svn/linden/projects/2008/pyogp/LICENSE.txt
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$/LicenseInfo$
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"""
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from zope.interface import implements
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from zope.component import adapts
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import md5
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from indra.base import llsd
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import grokcore.component as grok
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from interfaces import IPlainPasswordCredential, IMD5PasswordCredential
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from interfaces import ISerialization, ICredentialDeserialization
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import exc
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class PlainPasswordCredential(object):
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"""a plain password credential"""
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implements(IPlainPasswordCredential)
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PW_TYPE = "plain"
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def __init__(self, firstname, lastname, password):
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"""initialize this credential"""
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self.firstname = firstname
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self.lastname = lastname
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self.password = password
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def __repr__(self):
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"""return a string represenation"""
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return "PlainPasswordCredential for '%s %s'" %(self.firstname, self.lastname)
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def get_xmlrpc_login_params(self):
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""" return a dictionary of login params """
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login_params = {
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'first': self.firstname,
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'last': self.lastname,
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'passwd': self.password
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}
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return login_params
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class MD5PasswordCredential(object):
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"""a md5 password credential"""
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implements(IMD5PasswordCredential)
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PW_TYPE = "md5"
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def __init__(self, firstname, lastname, plainpw='', md5pw=None):
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"""initialize this credential"""
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self.firstname = firstname
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self.lastname = lastname
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if md5pw is not None:
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self.password = md5pw
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else:
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self.password = md5.new(plainpw).hexdigest()
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def __repr__(self):
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"""return a string represenation"""
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return "MD5PasswordCredential for '%s %s'" %(self.firstname, self.lastname)
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class PlainPasswordLLSDSerializer(grok.Adapter):
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"""converts a plain password credential to LLSD
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Here is how you can use it:
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>>> credential = PlainPasswordCredential('Firstname','Lastname','password')
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>>> serializer = ISerialization(credential)
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>>> serializer.serialize()
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'<?xml version="1.0" ?><llsd><map><key>lastname</key><string>Lastname</string><key>password</key><string>password</string><key>firstname</key><string>Firstname</string></map></llsd>'
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>>> serializer.content_type
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'application/llsd+xml'
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"""
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grok.implements(ISerialization)
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grok.context(IPlainPasswordCredential)
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def __init__(self, context):
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"""initialize this adapter by storing the context (the credential)"""
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self.context = context
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def serialize(self):
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"""return the credential as a string"""
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loginparams={
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'password' : self.context.password,
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'lastname' : self.context.lastname,
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'firstname' : self.context.firstname
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}
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llsdlist = llsd.format_xml(loginparams)
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return llsdlist
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@property
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def content_type(self):
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"""return HTTP headers needed here"""
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return "application/llsd+xml"
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class MD5PasswordLLSDSerializer(PlainPasswordLLSDSerializer):
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"""converts a md5 credential object to LLSD XML
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"""
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grok.implements(ISerialization)
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grok.context(IMD5PasswordCredential)
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def serialize(self):
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"""return the credential as a string"""
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loginparams={
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'md5-password' : self.context.password,
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'lastname' : self.context.lastname,
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'firstname' : self.context.firstname
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}
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llsdlist = llsd.format_xml(loginparams)
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return llsdlist
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class CredentialLLSDDeserializer(grok.GlobalUtility):
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"""take an LLSD string and create a credential object
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This is a utility
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"""
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grok.implements(ICredentialDeserialization)
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grok.name('application/llsd+xml')
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def deserialize(self, s):
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payload = llsd.parse(s)
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# now we dispatch which credential object we need to instantiate
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# this simply depends whether it's md5-password or password we find
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keys = payload.keys()
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if 'firstname' in keys and 'lastname' in keys:
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if payload.has_key("password"):
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return PlainPasswordCredential(payload['firstname'], payload['lastname'], payload['password'])
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elif payload.has_key("md5-password"):
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return MD5PasswordCredential(payload['firstname'], payload['lastname'], md5pw=payload['md5-password'])
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raise exc.CredentialDeserializerNotFound(str(payload))
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