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1 /* Part of DML (Digital Music Laboratory)
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2 Copyright 2014-2015 Samer Abdallah, University of London
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3
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4 This program is free software; you can redistribute it and/or
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5 modify it under the terms of the GNU General Public License
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6 as published by the Free Software Foundation; either version 2
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7 of the License, or (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public
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15 License along with this library; if not, write to the Free Software
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16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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17 */
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18
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19 :- module(dml_permissions, [file_permission/2]).
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20
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21 /** <module> control public access to DML resources
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22 */
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23
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24 %% file_permission(+File,-Permission:oneof([public,user,private])) is det.
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25 % This predicate is called to check whether or not the contents of a given
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26 % file should be available. There are three levels of access:
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27 % * public
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28 % Accessible to everyone.
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29 % * user
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30 % Accessible to registered, logged in Cliopatria users.
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31 % * private
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32 % Accessible to no-one.
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33 % The default level is private for all files. If you wish to make some files
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34 % available, you must copy (not link) this file to the 'config-available' directory
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35 % of your Cliopatria installation and edit the definition of file_permission/2
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36 % as you see fit.
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37
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38 %file_permission(Path,public) :- atom_concat('/home/dml/lib/mazurka/',_,Path), !.
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39 file_permission(_,public) :- user_db:logged_on(admin).
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40 file_permission(_,private).
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41
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