~azzar1/unity/add-show-desktop-key

1079 by William Grant
Merge setup-refactor branch. This completely breaks existing installations;
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# IVLE - Informatics Virtual Learning Environment
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# Copyright (C) 2007-2008 The University of Melbourne
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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# Module: Guest Authenticate
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# Author: Matt Giuca
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# Date:   21/2/2008
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# Pluggable authentication module for LDAP servers.
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# This module is part-test part-something-you-may-want.
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# If enabled, it allows "external auth" against an account "guest" with
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# password "guest".
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# It may be called with a None user, and will return a guest User object,
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# which will mean it gets put in the database.
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# Thus it behaves similarly to a module which retrieves user details from an
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# external source like LDAP.
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# This module is NOT active implicitly - it must be specified in the
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# "auth_modules" config string.
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1080.1.12 by me at id
ivle.auth.autherror: Remove, moving AuthError into ivle.auth itself.
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from ivle.auth import AuthError
1080.1.14 by me at id
ivle.auth.* now uses Storm, and not ivle.(db|user). This changes the interface
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from ivle.database import User
1079 by William Grant
Merge setup-refactor branch. This completely breaks existing installations;
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# XXX: What to put here
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GUEST_UID = 4000
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1080.1.14 by me at id
ivle.auth.* now uses Storm, and not ivle.(db|user). This changes the interface
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def auth(store, login, password, user):
1079 by William Grant
Merge setup-refactor branch. This completely breaks existing installations;
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    """
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    A plugin auth function, as described above.
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    This one authenticates against a "guest"/"guest" account.
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    Returns user if successful. Raises AuthError if unsuccessful.
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    Returns a new User object if user is None.
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    """
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    if login != "guest" or password != "guest":
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        raise AuthError()
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    if user is not None:
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        return user
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    # Create a guest user
1080.1.14 by me at id
ivle.auth.* now uses Storm, and not ivle.(db|user). This changes the interface
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    return User(login=u"guest", fullname=u"Guest Account", nick=u"Guest",
1101 by William Grant
Privileges (apart from admin) are now offering-local, not global.
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        state=u"no_agreement", unixid=GUEST_UID)