| 1 | # PyKota |
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| 2 | # -*- coding: ISO-8859-15 -*- |
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| 3 | |
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| 4 | # PyKota - Print Quotas for CUPS and LPRng |
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| 5 | # |
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| 6 | # (c) 2003-2004 Jerome Alet <alet@librelogiciel.com> |
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| 7 | # This program is free software; you can redistribute it and/or modify |
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| 8 | # it under the terms of the GNU General Public License as published by |
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| 9 | # the Free Software Foundation; either version 2 of the License, or |
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| 10 | # (at your option) any later version. |
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| 11 | # |
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| 12 | # This program is distributed in the hope that it will be useful, |
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | # GNU General Public License for more details. |
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| 16 | # |
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| 17 | # You should have received a copy of the GNU General Public License |
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| 18 | # along with this program; if not, write to the Free Software |
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| 19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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| 20 | # |
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| 21 | # $Id$ |
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| 22 | # |
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| 23 | # $Log$ |
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| 24 | # Revision 1.72 2004/01/14 15:51:19 jalet |
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| 25 | # Docstring added. |
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| 26 | # |
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| 27 | # Revision 1.71 2004/01/11 23:22:42 jalet |
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| 28 | # Major code refactoring, it's way cleaner, and now allows automated addition |
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| 29 | # of printers on first print. |
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| 30 | # |
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| 31 | # Revision 1.70 2004/01/08 14:10:32 jalet |
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| 32 | # Copyright year changed. |
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| 33 | # |
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| 34 | # Revision 1.69 2004/01/05 16:02:18 jalet |
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| 35 | # Dots in user, groups and printer names should be allowed. |
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| 36 | # |
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| 37 | # Revision 1.68 2004/01/02 17:38:40 jalet |
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| 38 | # This time it should be better... |
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| 39 | # |
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| 40 | # Revision 1.67 2004/01/02 17:37:09 jalet |
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| 41 | # I'm completely stupid !!! Better to not talk while coding ! |
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| 42 | # |
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| 43 | # Revision 1.66 2004/01/02 17:31:26 jalet |
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| 44 | # Forgot to remove some code |
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| 45 | # |
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| 46 | # Revision 1.65 2003/12/06 08:14:38 jalet |
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| 47 | # Added support for CUPS device uris which contain authentication information. |
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| 48 | # |
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| 49 | # Revision 1.64 2003/11/29 22:03:17 jalet |
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| 50 | # Some code refactoring work. New code is not used at this time. |
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| 51 | # |
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| 52 | # Revision 1.63 2003/11/29 20:06:20 jalet |
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| 53 | # Added 'utolower' configuration option to convert all usernames to |
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| 54 | # lowercase when printing. All database accesses are still and will |
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| 55 | # remain case sensitive though. |
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| 56 | # |
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| 57 | # Revision 1.62 2003/11/25 22:37:22 jalet |
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| 58 | # Small code move |
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| 59 | # |
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| 60 | # Revision 1.61 2003/11/25 22:03:28 jalet |
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| 61 | # No more message on stderr when the translation is not available. |
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| 62 | # |
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| 63 | # Revision 1.60 2003/11/25 21:54:05 jalet |
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| 64 | # updated FAQ |
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| 65 | # |
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| 66 | # Revision 1.59 2003/11/25 13:33:43 jalet |
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| 67 | # Puts 'root' instead of '' when printing from CUPS web interface (which |
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| 68 | # gives an empty username) |
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| 69 | # |
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| 70 | # Revision 1.58 2003/11/21 14:28:45 jalet |
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| 71 | # More complete job history. |
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| 72 | # |
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| 73 | # Revision 1.57 2003/11/19 23:19:38 jalet |
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| 74 | # Code refactoring work. |
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| 75 | # Explicit redirection to /dev/null has to be set in external policy now, just |
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| 76 | # like in external mailto. |
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| 77 | # |
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| 78 | # Revision 1.56 2003/11/19 07:40:20 jalet |
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| 79 | # Missing import statement. |
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| 80 | # Better documentation for mailto: external(...) |
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| 81 | # |
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| 82 | # Revision 1.55 2003/11/18 23:43:12 jalet |
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| 83 | # Mailto can be any external command now, as usual. |
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| 84 | # |
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| 85 | # Revision 1.54 2003/10/24 21:52:46 jalet |
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| 86 | # Now can force language when coming from CGI script. |
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| 87 | # |
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| 88 | # Revision 1.53 2003/10/08 21:41:38 jalet |
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| 89 | # External policies for printers works ! |
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| 90 | # We can now auto-add users on first print, and do other useful things if needed. |
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| 91 | # |
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| 92 | # Revision 1.52 2003/10/07 09:07:28 jalet |
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| 93 | # Character encoding added to please latest version of Python |
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| 94 | # |
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| 95 | # Revision 1.51 2003/10/06 14:21:41 jalet |
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| 96 | # Test reversed to not retrieve group members when no messages for them. |
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| 97 | # |
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| 98 | # Revision 1.50 2003/10/02 20:23:18 jalet |
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| 99 | # Storage caching mechanism added. |
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| 100 | # |
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| 101 | # Revision 1.49 2003/07/29 20:55:17 jalet |
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| 102 | # 1.14 is out ! |
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| 103 | # |
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| 104 | # Revision 1.48 2003/07/21 23:01:56 jalet |
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| 105 | # Modified some messages aout soft limit |
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| 106 | # |
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| 107 | # Revision 1.47 2003/07/16 21:53:08 jalet |
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| 108 | # Really big modifications wrt new configuration file's location and content. |
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| 109 | # |
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| 110 | # Revision 1.46 2003/07/09 20:17:07 jalet |
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| 111 | # Email field added to PostgreSQL schema |
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| 112 | # |
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| 113 | # Revision 1.45 2003/07/08 19:43:51 jalet |
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| 114 | # Configurable warning messages. |
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| 115 | # Poor man's treshold value added. |
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| 116 | # |
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| 117 | # Revision 1.44 2003/07/07 11:49:24 jalet |
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| 118 | # Lots of small fixes with the help of PyChecker |
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| 119 | # |
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| 120 | # Revision 1.43 2003/07/04 09:06:32 jalet |
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| 121 | # Small bug fix wrt undefined "LimitBy" field. |
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| 122 | # |
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| 123 | # Revision 1.42 2003/06/30 12:46:15 jalet |
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| 124 | # Extracted reporting code. |
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| 125 | # |
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| 126 | # Revision 1.41 2003/06/25 14:10:01 jalet |
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| 127 | # Hey, it may work (edpykota --reset excepted) ! |
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| 128 | # |
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| 129 | # Revision 1.40 2003/06/10 16:37:54 jalet |
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| 130 | # Deletion of the second user which is not needed anymore. |
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| 131 | # Added a debug configuration field in /etc/pykota.conf |
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| 132 | # All queries can now be sent to the logger in debug mode, this will |
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| 133 | # greatly help improve performance when time for this will come. |
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| 134 | # |
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| 135 | # Revision 1.39 2003/04/29 18:37:54 jalet |
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| 136 | # Pluggable accounting methods (actually doesn't support external scripts) |
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| 137 | # |
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| 138 | # Revision 1.38 2003/04/24 11:53:48 jalet |
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| 139 | # Default policy for unknown users/groups is to DENY printing instead |
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| 140 | # of the previous default to ALLOW printing. This is to solve an accuracy |
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| 141 | # problem. If you set the policy to ALLOW, jobs printed by in nexistant user |
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| 142 | # (from PyKota's POV) will be charged to the next user who prints on the |
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| 143 | # same printer. |
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| 144 | # |
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| 145 | # Revision 1.37 2003/04/24 08:08:27 jalet |
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| 146 | # Debug message forgotten |
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| 147 | # |
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| 148 | # Revision 1.36 2003/04/24 07:59:40 jalet |
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| 149 | # LPRng support now works ! |
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| 150 | # |
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| 151 | # Revision 1.35 2003/04/23 22:13:57 jalet |
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| 152 | # Preliminary support for LPRng added BUT STILL UNTESTED. |
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| 153 | # |
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| 154 | # Revision 1.34 2003/04/17 09:26:21 jalet |
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| 155 | # repykota now reports account balances too. |
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| 156 | # |
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| 157 | # Revision 1.33 2003/04/16 12:35:49 jalet |
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| 158 | # Groups quota work now ! |
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| 159 | # |
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| 160 | # Revision 1.32 2003/04/16 08:53:14 jalet |
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| 161 | # Printing can now be limited either by user's account balance or by |
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| 162 | # page quota (the default). Quota report doesn't include account balance |
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| 163 | # yet, though. |
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| 164 | # |
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| 165 | # Revision 1.31 2003/04/15 11:30:57 jalet |
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| 166 | # More work done on money print charging. |
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| 167 | # Minor bugs corrected. |
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| 168 | # All tools now access to the storage as priviledged users, repykota excepted. |
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| 169 | # |
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| 170 | # Revision 1.30 2003/04/10 21:47:20 jalet |
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| 171 | # Job history added. Upgrade script neutralized for now ! |
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| 172 | # |
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| 173 | # Revision 1.29 2003/03/29 13:45:27 jalet |
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| 174 | # GPL paragraphs were incorrectly (from memory) copied into the sources. |
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| 175 | # Two README files were added. |
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| 176 | # Upgrade script for PostgreSQL pre 1.01 schema was added. |
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| 177 | # |
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| 178 | # Revision 1.28 2003/03/29 13:08:28 jalet |
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| 179 | # Configuration is now expected to be found in /etc/pykota.conf instead of |
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| 180 | # in /etc/cups/pykota.conf |
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| 181 | # Installation script can move old config files to the new location if needed. |
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| 182 | # Better error handling if configuration file is absent. |
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| 183 | # |
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| 184 | # Revision 1.27 2003/03/15 23:01:28 jalet |
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| 185 | # New mailto option in configuration file added. |
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| 186 | # No time to test this tonight (although it should work). |
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| 187 | # |
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| 188 | # Revision 1.26 2003/03/09 23:58:16 jalet |
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| 189 | # Comment |
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| 190 | # |
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| 191 | # Revision 1.25 2003/03/07 22:56:14 jalet |
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| 192 | # 0.99 is out with some bug fixes. |
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| 193 | # |
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| 194 | # Revision 1.24 2003/02/27 23:48:41 jalet |
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| 195 | # Correctly maps PyKota's log levels to syslog log levels |
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| 196 | # |
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| 197 | # Revision 1.23 2003/02/27 22:55:20 jalet |
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| 198 | # WARN log priority doesn't exist. |
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| 199 | # |
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| 200 | # Revision 1.22 2003/02/27 09:09:20 jalet |
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| 201 | # Added a method to match strings against wildcard patterns |
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| 202 | # |
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| 203 | # Revision 1.21 2003/02/17 23:01:56 jalet |
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| 204 | # Typos |
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| 205 | # |
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| 206 | # Revision 1.20 2003/02/17 22:55:01 jalet |
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| 207 | # More options can now be set per printer or globally : |
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| 208 | # |
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| 209 | # admin |
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| 210 | # adminmail |
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| 211 | # gracedelay |
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| 212 | # requester |
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| 213 | # |
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| 214 | # the printer option has priority when both are defined. |
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| 215 | # |
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| 216 | # Revision 1.19 2003/02/10 11:28:45 jalet |
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| 217 | # Localization |
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| 218 | # |
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| 219 | # Revision 1.18 2003/02/10 01:02:17 jalet |
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| 220 | # External requester is about to work, but I must sleep |
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| 221 | # |
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| 222 | # Revision 1.17 2003/02/09 13:05:43 jalet |
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| 223 | # Internationalization continues... |
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| 224 | # |
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| 225 | # Revision 1.16 2003/02/09 12:56:53 jalet |
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| 226 | # Internationalization begins... |
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| 227 | # |
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| 228 | # Revision 1.15 2003/02/08 22:09:52 jalet |
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| 229 | # Name check method moved here |
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| 230 | # |
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| 231 | # Revision 1.14 2003/02/07 10:42:45 jalet |
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| 232 | # Indentation problem |
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| 233 | # |
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| 234 | # Revision 1.13 2003/02/07 08:34:16 jalet |
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| 235 | # Test wrt date limit was wrong |
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| 236 | # |
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| 237 | # Revision 1.12 2003/02/06 23:20:02 jalet |
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| 238 | # warnpykota doesn't need any user/group name argument, mimicing the |
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| 239 | # warnquota disk quota tool. |
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| 240 | # |
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| 241 | # Revision 1.11 2003/02/06 22:54:33 jalet |
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| 242 | # warnpykota should be ok |
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| 243 | # |
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| 244 | # Revision 1.10 2003/02/06 15:03:11 jalet |
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| 245 | # added a method to set the limit date |
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| 246 | # |
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| 247 | # Revision 1.9 2003/02/06 10:39:23 jalet |
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| 248 | # Preliminary edpykota work. |
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| 249 | # |
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| 250 | # Revision 1.8 2003/02/06 09:19:02 jalet |
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| 251 | # More robust behavior (hopefully) when the user or printer is not managed |
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| 252 | # correctly by the Quota System : e.g. cupsFilter added in ppd file, but |
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| 253 | # printer and/or user not 'yet?' in storage. |
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| 254 | # |
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| 255 | # Revision 1.7 2003/02/06 00:00:45 jalet |
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| 256 | # Now includes the printer name in email messages |
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| 257 | # |
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| 258 | # Revision 1.6 2003/02/05 23:55:02 jalet |
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| 259 | # Cleaner email messages |
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| 260 | # |
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| 261 | # Revision 1.5 2003/02/05 23:45:09 jalet |
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| 262 | # Better DateTime manipulation wrt grace delay |
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| 263 | # |
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| 264 | # Revision 1.4 2003/02/05 23:26:22 jalet |
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| 265 | # Incorrect handling of grace delay |
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| 266 | # |
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| 267 | # Revision 1.3 2003/02/05 22:16:20 jalet |
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| 268 | # DEVICE_URI is undefined outside of CUPS, i.e. for normal command line tools |
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| 269 | # |
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| 270 | # Revision 1.2 2003/02/05 22:10:29 jalet |
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| 271 | # Typos |
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| 272 | # |
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| 273 | # Revision 1.1 2003/02/05 21:28:17 jalet |
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| 274 | # Initial import into CVS |
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| 275 | # |
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| 276 | # |
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| 277 | # |
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| 278 | |
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| 279 | import sys |
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| 280 | import os |
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| 281 | import fnmatch |
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| 282 | import getopt |
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| 283 | import smtplib |
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| 284 | import gettext |
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| 285 | import locale |
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| 286 | |
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| 287 | from mx import DateTime |
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| 288 | |
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| 289 | from pykota import version, config, storage, logger, accounter |
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| 290 | |
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| 291 | class PyKotaToolError(Exception): |
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| 292 | """An exception for PyKota config related stuff.""" |
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| 293 | def __init__(self, message = ""): |
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| 294 | self.message = message |
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| 295 | Exception.__init__(self, message) |
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| 296 | def __repr__(self): |
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| 297 | return self.message |
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| 298 | __str__ = __repr__ |
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| 299 | |
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| 300 | class PyKotaTool : |
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| 301 | """Base class for all PyKota command line tools.""" |
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| 302 | def __init__(self, lang=None, doc="PyKota %s (c) 2003-2004 %s" % (version.__version__, version.__author__)) : |
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| 303 | """Initializes the command line tool.""" |
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| 304 | # locale stuff |
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| 305 | try : |
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| 306 | locale.setlocale(locale.LC_ALL, lang) |
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| 307 | gettext.install("pykota") |
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| 308 | except (locale.Error, IOError) : |
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| 309 | gettext.NullTranslations().install() |
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| 310 | # sys.stderr.write("PyKota : Error while loading translations\n") |
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| 311 | |
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| 312 | # pykota specific stuff |
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| 313 | self.documentation = doc |
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| 314 | self.config = config.PyKotaConfig("/etc/pykota") |
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| 315 | self.logger = logger.openLogger(self.config.getLoggingBackend()) |
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| 316 | self.debug = self.config.getDebug() |
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| 317 | self.storage = storage.openConnection(self) |
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| 318 | self.smtpserver = self.config.getSMTPServer() |
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| 319 | |
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| 320 | def logdebug(self, message) : |
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| 321 | """Logs something to debug output if debug is enabled.""" |
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| 322 | if self.debug : |
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| 323 | self.logger.log_message(message, "debug") |
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| 324 | |
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| 325 | def clean(self) : |
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| 326 | """Ensures that the database is closed.""" |
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| 327 | try : |
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| 328 | self.storage.close() |
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| 329 | except (TypeError, NameError, AttributeError) : |
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| 330 | pass |
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| 331 | |
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| 332 | def display_version_and_quit(self) : |
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| 333 | """Displays version number, then exists successfully.""" |
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| 334 | self.clean() |
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| 335 | print version.__version__ |
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| 336 | sys.exit(0) |
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| 337 | |
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| 338 | def display_usage_and_quit(self) : |
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| 339 | """Displays command line usage, then exists successfully.""" |
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| 340 | self.clean() |
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| 341 | print self.documentation |
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| 342 | sys.exit(0) |
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| 343 | |
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| 344 | def parseCommandline(self, argv, short, long, allownothing=0) : |
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| 345 | """Parses the command line, controlling options.""" |
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| 346 | # split options in two lists: those which need an argument, those which don't need any |
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| 347 | withoutarg = [] |
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| 348 | witharg = [] |
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| 349 | lgs = len(short) |
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| 350 | i = 0 |
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| 351 | while i < lgs : |
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| 352 | ii = i + 1 |
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| 353 | if (ii < lgs) and (short[ii] == ':') : |
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| 354 | # needs an argument |
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| 355 | witharg.append(short[i]) |
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| 356 | ii = ii + 1 # skip the ':' |
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| 357 | else : |
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| 358 | # doesn't need an argument |
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| 359 | withoutarg.append(short[i]) |
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| 360 | i = ii |
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| 361 | |
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| 362 | for option in long : |
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| 363 | if option[-1] == '=' : |
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| 364 | # needs an argument |
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| 365 | witharg.append(option[:-1]) |
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| 366 | else : |
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| 367 | # doesn't need an argument |
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| 368 | withoutarg.append(option) |
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| 369 | |
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| 370 | # we begin with all possible options unset |
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| 371 | parsed = {} |
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| 372 | for option in withoutarg + witharg : |
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| 373 | parsed[option] = None |
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| 374 | |
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| 375 | # then we parse the command line |
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| 376 | args = [] # to not break if something unexpected happened |
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| 377 | try : |
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| 378 | options, args = getopt.getopt(argv, short, long) |
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| 379 | if options : |
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| 380 | for (o, v) in options : |
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| 381 | # we skip the '-' chars |
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| 382 | lgo = len(o) |
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| 383 | i = 0 |
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| 384 | while (i < lgo) and (o[i] == '-') : |
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| 385 | i = i + 1 |
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| 386 | o = o[i:] |
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| 387 | if o in witharg : |
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| 388 | # needs an argument : set it |
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| 389 | parsed[o] = v |
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| 390 | elif o in withoutarg : |
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| 391 | # doesn't need an argument : boolean |
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| 392 | parsed[o] = 1 |
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| 393 | else : |
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| 394 | # should never occur |
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| 395 | raise PyKotaToolError, "Unexpected problem when parsing command line" |
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| 396 | elif (not args) and (not allownothing) and sys.stdin.isatty() : # no option and no argument, we display help if we are a tty |
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| 397 | self.display_usage_and_quit() |
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| 398 | except getopt.error, msg : |
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| 399 | sys.stderr.write("%s\n" % msg) |
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| 400 | sys.stderr.flush() |
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| 401 | self.display_usage_and_quit() |
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| 402 | return (parsed, args) |
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| 403 | |
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| 404 | def isValidName(self, name) : |
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| 405 | """Checks if a user or printer name is valid.""" |
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| 406 | # unfortunately Python 2.1 string modules doesn't define ascii_letters... |
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| 407 | asciiletters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' |
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| 408 | digits = '0123456789' |
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| 409 | if name[0] in asciiletters : |
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| 410 | validchars = asciiletters + digits + "-_." |
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| 411 | for c in name[1:] : |
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| 412 | if c not in validchars : |
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| 413 | return 0 |
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| 414 | return 1 |
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| 415 | return 0 |
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| 416 | |
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| 417 | def matchString(self, s, patterns) : |
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| 418 | """Returns 1 if the string s matches one of the patterns, else 0.""" |
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| 419 | for pattern in patterns : |
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| 420 | if fnmatch.fnmatchcase(s, pattern) : |
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| 421 | return 1 |
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| 422 | return 0 |
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| 423 | |
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| 424 | def sendMessage(self, adminmail, touser, fullmessage) : |
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| 425 | """Sends an email message containing headers to some user.""" |
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| 426 | if "@" not in touser : |
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| 427 | touser = "%s@%s" % (touser, self.smtpserver) |
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| 428 | server = smtplib.SMTP(self.smtpserver) |
|---|
| 429 | try : |
|---|
| 430 | server.sendmail(adminmail, [touser], fullmessage) |
|---|
| 431 | except smtplib.SMTPRecipientsRefused, answer : |
|---|
| 432 | for (k, v) in answer.recipients.items() : |
|---|
| 433 | self.logger.log_message(_("Impossible to send mail to %s, error %s : %s") % (k, v[0], v[1]), "error") |
|---|
| 434 | server.quit() |
|---|
| 435 | |
|---|
| 436 | def sendMessageToUser(self, admin, adminmail, user, subject, message) : |
|---|
| 437 | """Sends an email message to a user.""" |
|---|
| 438 | message += _("\n\nPlease contact your system administrator :\n\n\t%s - <%s>\n") % (admin, adminmail) |
|---|
| 439 | self.sendMessage(adminmail, user.Email or user.Name, "Subject: %s\n\n%s" % (subject, message)) |
|---|
| 440 | |
|---|
| 441 | def sendMessageToAdmin(self, adminmail, subject, message) : |
|---|
| 442 | """Sends an email message to the Print Quota administrator.""" |
|---|
| 443 | self.sendMessage(adminmail, adminmail, "Subject: %s\n\n%s" % (subject, message)) |
|---|
| 444 | |
|---|
| 445 | def checkGroupPQuota(self, grouppquota) : |
|---|
| 446 | """Checks the group quota on a printer and deny or accept the job.""" |
|---|
| 447 | group = grouppquota.Group |
|---|
| 448 | printer = grouppquota.Printer |
|---|
| 449 | if group.LimitBy and (group.LimitBy.lower() == "balance") : |
|---|
| 450 | if group.AccountBalance <= 0.0 : |
|---|
| 451 | action = "DENY" |
|---|
| 452 | elif group.AccountBalance <= self.config.getPoorMan() : |
|---|
| 453 | action = "WARN" |
|---|
| 454 | else : |
|---|
| 455 | action = "ALLOW" |
|---|
| 456 | else : |
|---|
| 457 | if grouppquota.SoftLimit is not None : |
|---|
| 458 | softlimit = int(grouppquota.SoftLimit) |
|---|
| 459 | if grouppquota.PageCounter < softlimit : |
|---|
| 460 | action = "ALLOW" |
|---|
| 461 | else : |
|---|
| 462 | if grouppquota.HardLimit is None : |
|---|
| 463 | # only a soft limit, this is equivalent to having only a hard limit |
|---|
| 464 | action = "DENY" |
|---|
| 465 | else : |
|---|
| 466 | hardlimit = int(grouppquota.HardLimit) |
|---|
| 467 | if softlimit <= grouppquota.PageCounter < hardlimit : |
|---|
| 468 | now = DateTime.now() |
|---|
| 469 | if grouppquota.DateLimit is not None : |
|---|
| 470 | datelimit = DateTime.ISO.ParseDateTime(grouppquota.DateLimit) |
|---|
| 471 | else : |
|---|
| 472 | datelimit = now + self.config.getGraceDelay(printer.Name) |
|---|
| 473 | grouppquota.setDateLimit(datelimit) |
|---|
| 474 | if now < datelimit : |
|---|
| 475 | action = "WARN" |
|---|
| 476 | else : |
|---|
| 477 | action = "DENY" |
|---|
| 478 | else : |
|---|
| 479 | action = "DENY" |
|---|
| 480 | else : |
|---|
| 481 | if grouppquota.HardLimit is not None : |
|---|
| 482 | # no soft limit, only a hard one. |
|---|
| 483 | hardlimit = int(grouppquota.HardLimit) |
|---|
| 484 | if grouppquota.PageCounter < hardlimit : |
|---|
| 485 | action = "ALLOW" |
|---|
| 486 | else : |
|---|
| 487 | action = "DENY" |
|---|
| 488 | else : |
|---|
| 489 | # Both are unset, no quota, i.e. accounting only |
|---|
| 490 | action = "ALLOW" |
|---|
| 491 | return action |
|---|
| 492 | |
|---|
| 493 | def checkUserPQuota(self, userpquota) : |
|---|
| 494 | """Checks the user quota on a printer and deny or accept the job.""" |
|---|
| 495 | user = userpquota.User |
|---|
| 496 | printer = userpquota.Printer |
|---|
| 497 | |
|---|
| 498 | # first we check any group the user is a member of |
|---|
| 499 | for group in self.storage.getUserGroups(user) : |
|---|
| 500 | grouppquota = self.storage.getGroupPQuota(group, printer) |
|---|
| 501 | if grouppquota.Exists : |
|---|
| 502 | action = self.checkGroupPQuota(grouppquota) |
|---|
| 503 | if action == "DENY" : |
|---|
| 504 | return action |
|---|
| 505 | |
|---|
| 506 | # then we check the user's own quota |
|---|
| 507 | # if we get there we are sure that policy is not EXTERNAL |
|---|
| 508 | (policy, dummy) = self.config.getPrinterPolicy(printer.Name) |
|---|
| 509 | if user.LimitBy and (user.LimitBy.lower() == "balance") : |
|---|
| 510 | if user.AccountBalance is None : |
|---|
| 511 | if policy == "ALLOW" : |
|---|
| 512 | action = "POLICY_ALLOW" |
|---|
| 513 | else : |
|---|
| 514 | action = "POLICY_DENY" |
|---|
| 515 | self.logger.log_message(_("Unable to find user %s's account balance, applying default policy (%s) for printer %s") % (user.Name, action, printer.Name)) |
|---|
| 516 | else : |
|---|
| 517 | val = float(user.AccountBalance or 0.0) |
|---|
| 518 | if val <= 0.0 : |
|---|
| 519 | action = "DENY" |
|---|
| 520 | elif val <= self.config.getPoorMan() : |
|---|
| 521 | action = "WARN" |
|---|
| 522 | else : |
|---|
| 523 | action = "ALLOW" |
|---|
| 524 | else : |
|---|
| 525 | if not userpquota.Exists : |
|---|
| 526 | # Unknown userquota |
|---|
| 527 | if policy == "ALLOW" : |
|---|
| 528 | action = "POLICY_ALLOW" |
|---|
| 529 | else : |
|---|
| 530 | action = "POLICY_DENY" |
|---|
| 531 | self.logger.log_message(_("Unable to match user %s on printer %s, applying default policy (%s)") % (user.Name, printer.Name, action)) |
|---|
| 532 | else : |
|---|
| 533 | pagecounter = int(userpquota.PageCounter or 0) |
|---|
| 534 | if userpquota.SoftLimit is not None : |
|---|
| 535 | softlimit = int(userpquota.SoftLimit) |
|---|
| 536 | if pagecounter < softlimit : |
|---|
| 537 | action = "ALLOW" |
|---|
| 538 | else : |
|---|
| 539 | if userpquota.HardLimit is None : |
|---|
| 540 | # only a soft limit, this is equivalent to having only a hard limit |
|---|
| 541 | action = "DENY" |
|---|
| 542 | else : |
|---|
| 543 | hardlimit = int(userpquota.HardLimit) |
|---|
| 544 | if softlimit <= pagecounter < hardlimit : |
|---|
| 545 | now = DateTime.now() |
|---|
| 546 | if userpquota.DateLimit is not None : |
|---|
| 547 | datelimit = DateTime.ISO.ParseDateTime(userpquota.DateLimit) |
|---|
| 548 | else : |
|---|
| 549 | datelimit = now + self.config.getGraceDelay(printer.Name) |
|---|
| 550 | userpquota.setDateLimit(datelimit) |
|---|
| 551 | if now < datelimit : |
|---|
| 552 | action = "WARN" |
|---|
| 553 | else : |
|---|
| 554 | action = "DENY" |
|---|
| 555 | else : |
|---|
| 556 | action = "DENY" |
|---|
| 557 | else : |
|---|
| 558 | if userpquota.HardLimit is not None : |
|---|
| 559 | # no soft limit, only a hard one. |
|---|
| 560 | hardlimit = int(userpquota.HardLimit) |
|---|
| 561 | if pagecounter < hardlimit : |
|---|
| 562 | action = "ALLOW" |
|---|
| 563 | else : |
|---|
| 564 | action = "DENY" |
|---|
| 565 | else : |
|---|
| 566 | # Both are unset, no quota, i.e. accounting only |
|---|
| 567 | action = "ALLOW" |
|---|
| 568 | return action |
|---|
| 569 | |
|---|
| 570 | def externalMailTo(self, cmd, action, user, printer, message) : |
|---|
| 571 | """Warns the user with an external command.""" |
|---|
| 572 | username = user.Name |
|---|
| 573 | printername = printer.Name |
|---|
| 574 | email = user.Email or user.Name |
|---|
| 575 | if "@" not in email : |
|---|
| 576 | email = "%s@%s" % (email, self.smtpserver) |
|---|
| 577 | os.system(cmd % locals()) |
|---|
| 578 | |
|---|
| 579 | def formatCommandLine(self, cmd, user, printer) : |
|---|
| 580 | """Executes an external command.""" |
|---|
| 581 | username = user.Name |
|---|
| 582 | printername = printer.Name |
|---|
| 583 | return cmd % locals() |
|---|
| 584 | |
|---|
| 585 | def warnGroupPQuota(self, grouppquota) : |
|---|
| 586 | """Checks a group quota and send messages if quota is exceeded on current printer.""" |
|---|
| 587 | group = grouppquota.Group |
|---|
| 588 | printer = grouppquota.Printer |
|---|
| 589 | admin = self.config.getAdmin(printer.Name) |
|---|
| 590 | adminmail = self.config.getAdminMail(printer.Name) |
|---|
| 591 | (mailto, arguments) = self.config.getMailTo(printer.Name) |
|---|
| 592 | action = self.checkGroupPQuota(grouppquota) |
|---|
| 593 | if action.startswith("POLICY_") : |
|---|
| 594 | action = action[7:] |
|---|
| 595 | if action == "DENY" : |
|---|
| 596 | adminmessage = _("Print Quota exceeded for group %s on printer %s") % (group.Name, printer.Name) |
|---|
| 597 | self.logger.log_message(adminmessage) |
|---|
| 598 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 599 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 600 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 601 | for user in self.storage.getGroupMembers(group) : |
|---|
| 602 | if mailto != "EXTERNAL" : |
|---|
| 603 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Exceeded"), self.config.getHardWarn(printer.Name)) |
|---|
| 604 | else : |
|---|
| 605 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 606 | elif action == "WARN" : |
|---|
| 607 | adminmessage = _("Print Quota low for group %s on printer %s") % (group.Name, printer.Name) |
|---|
| 608 | self.logger.log_message(adminmessage) |
|---|
| 609 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 610 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 611 | if group.LimitBy and (group.LimitBy.lower() == "balance") : |
|---|
| 612 | message = self.config.getPoorWarn() |
|---|
| 613 | else : |
|---|
| 614 | message = self.config.getSoftWarn(printer.Name) |
|---|
| 615 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 616 | for user in self.storage.getGroupMembers(group) : |
|---|
| 617 | if mailto != "EXTERNAL" : |
|---|
| 618 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Exceeded"), message) |
|---|
| 619 | else : |
|---|
| 620 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 621 | return action |
|---|
| 622 | |
|---|
| 623 | def warnUserPQuota(self, userpquota) : |
|---|
| 624 | """Checks a user quota and send him a message if quota is exceeded on current printer.""" |
|---|
| 625 | user = userpquota.User |
|---|
| 626 | printer = userpquota.Printer |
|---|
| 627 | admin = self.config.getAdmin(printer.Name) |
|---|
| 628 | adminmail = self.config.getAdminMail(printer.Name) |
|---|
| 629 | (mailto, arguments) = self.config.getMailTo(printer.Name) |
|---|
| 630 | action = self.checkUserPQuota(userpquota) |
|---|
| 631 | if action.startswith("POLICY_") : |
|---|
| 632 | action = action[7:] |
|---|
| 633 | if action == "DENY" : |
|---|
| 634 | adminmessage = _("Print Quota exceeded for user %s on printer %s") % (user.Name, printer.Name) |
|---|
| 635 | self.logger.log_message(adminmessage) |
|---|
| 636 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 637 | message = self.config.getHardWarn(printer.Name) |
|---|
| 638 | if mailto != "EXTERNAL" : |
|---|
| 639 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Exceeded"), message) |
|---|
| 640 | else : |
|---|
| 641 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 642 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 643 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 644 | elif action == "WARN" : |
|---|
| 645 | adminmessage = _("Print Quota low for user %s on printer %s") % (user.Name, printer.Name) |
|---|
| 646 | self.logger.log_message(adminmessage) |
|---|
| 647 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 648 | if user.LimitBy and (user.LimitBy.lower() == "balance") : |
|---|
| 649 | message = self.config.getPoorWarn() |
|---|
| 650 | else : |
|---|
| 651 | message = self.config.getSoftWarn(printer.Name) |
|---|
| 652 | if mailto != "EXTERNAL" : |
|---|
| 653 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Low"), message) |
|---|
| 654 | else : |
|---|
| 655 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 656 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 657 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 658 | return action |
|---|
| 659 | |
|---|
| 660 | class PyKotaFilterOrBackend(PyKotaTool) : |
|---|
| 661 | """Class for the PyKota filter or backend.""" |
|---|
| 662 | def __init__(self) : |
|---|
| 663 | """Initialize local datas from current environment.""" |
|---|
| 664 | PyKotaTool.__init__(self) |
|---|
| 665 | (self.printingsystem, \ |
|---|
| 666 | self.printerhostname, \ |
|---|
| 667 | self.printername, \ |
|---|
| 668 | self.username, \ |
|---|
| 669 | self.jobid, \ |
|---|
| 670 | self.inputfile, \ |
|---|
| 671 | self.copies, \ |
|---|
| 672 | self.title, \ |
|---|
| 673 | self.options, \ |
|---|
| 674 | self.originalbackend) = self.extractInfoFromCupsOrLprng() |
|---|
| 675 | self.username = self.username or 'root' |
|---|
| 676 | if self.config.getUserNameToLower() : |
|---|
| 677 | self.username = self.username.lower() |
|---|
| 678 | self.preserveinputfile = self.inputfile |
|---|
| 679 | self.accounter = accounter.openAccounter(self) |
|---|
| 680 | |
|---|
| 681 | def extractInfoFromCupsOrLprng(self) : |
|---|
| 682 | """Returns a tuple (printingsystem, printerhostname, printername, username, jobid, filename, title, options, backend). |
|---|
| 683 | |
|---|
| 684 | Returns (None, None, None, None, None, None, None, None, None, None) if no printing system is recognized. |
|---|
| 685 | """ |
|---|
| 686 | # Try to detect CUPS |
|---|
| 687 | if os.environ.has_key("CUPS_SERVERROOT") and os.path.isdir(os.environ.get("CUPS_SERVERROOT", "")) : |
|---|
| 688 | if len(sys.argv) == 7 : |
|---|
| 689 | inputfile = sys.argv[6] |
|---|
| 690 | else : |
|---|
| 691 | inputfile = None |
|---|
| 692 | |
|---|
| 693 | # check that the DEVICE_URI environment variable's value is |
|---|
| 694 | # prefixed with "cupspykota:" otherwise don't touch it. |
|---|
| 695 | # If this is the case, we have to remove the prefix from |
|---|
| 696 | # the environment before launching the real backend in cupspykota |
|---|
| 697 | device_uri = os.environ.get("DEVICE_URI", "") |
|---|
| 698 | if device_uri.startswith("cupspykota:") : |
|---|
| 699 | fulldevice_uri = device_uri[:] |
|---|
| 700 | device_uri = fulldevice_uri[len("cupspykota:"):] |
|---|
| 701 | if device_uri.startswith("//") : # lpd (at least) |
|---|
| 702 | device_uri = device_uri[2:] |
|---|
| 703 | os.environ["DEVICE_URI"] = device_uri # TODO : side effect ! |
|---|
| 704 | # TODO : check this for more complex urls than ipp://myprinter.dot.com:631/printers/lp |
|---|
| 705 | try : |
|---|
| 706 | (backend, destination) = device_uri.split(":", 1) |
|---|
| 707 | except ValueError : |
|---|
| 708 | raise PyKotaToolError, "Invalid DEVICE_URI : %s\n" % device_uri |
|---|
| 709 | while destination.startswith("/") : |
|---|
| 710 | destination = destination[1:] |
|---|
| 711 | checkauth = destination.split("@", 1) |
|---|
| 712 | if len(checkauth) == 2 : |
|---|
| 713 | destination = checkauth[1] |
|---|
| 714 | printerhostname = destination.split("/")[0].split(":")[0] |
|---|
| 715 | return ("CUPS", \ |
|---|
| 716 | printerhostname, \ |
|---|
| 717 | os.environ.get("PRINTER"), \ |
|---|
| 718 | sys.argv[2].strip(), \ |
|---|
| 719 | sys.argv[1].strip(), \ |
|---|
| 720 | inputfile, \ |
|---|
| 721 | int(sys.argv[4].strip()), \ |
|---|
| 722 | sys.argv[3], \ |
|---|
| 723 | sys.argv[5], \ |
|---|
| 724 | backend) |
|---|
| 725 | else : |
|---|
| 726 | # Try to detect LPRng |
|---|
| 727 | # TODO : try to extract filename, job's title, and options if available |
|---|
| 728 | jseen = Pseen = nseen = rseen = Kseen = None |
|---|
| 729 | for arg in sys.argv : |
|---|
| 730 | if arg.startswith("-j") : |
|---|
| 731 | jseen = arg[2:].strip() |
|---|
| 732 | elif arg.startswith("-n") : |
|---|
| 733 | nseen = arg[2:].strip() |
|---|
| 734 | elif arg.startswith("-P") : |
|---|
| 735 | Pseen = arg[2:].strip() |
|---|
| 736 | elif arg.startswith("-r") : |
|---|
| 737 | rseen = arg[2:].strip() |
|---|
| 738 | elif arg.startswith("-K") or arg.startswith("-#") : |
|---|
| 739 | Kseen = int(arg[2:].strip()) |
|---|
| 740 | if Kseen is None : |
|---|
| 741 | Kseen = 1 # we assume the user wants at least one copy... |
|---|
| 742 | if (rseen is None) and jseen and Pseen and nseen : |
|---|
| 743 | self.logger.log_message(_("Printer hostname undefined, set to 'localhost'"), "warn") |
|---|
| 744 | rseen = "localhost" |
|---|
| 745 | if jseen and Pseen and nseen and rseen : |
|---|
| 746 | # job is always in stdin (None) |
|---|
| 747 | return ("LPRNG", rseen, Pseen, nseen, jseen, None, Kseen, None, None, None) |
|---|
| 748 | self.logger.log_message(_("Printing system unknown, args=%s") % " ".join(sys.argv), "warn") |
|---|
| 749 | return (None, None, None, None, None, None, None, None, None, None) # Unknown printing system |
|---|
| 750 | |
|---|
| 751 | def getPrinterUserAndUserPQuota(self) : |
|---|
| 752 | """Returns a tuple (policy, printer, user, and user print quota) on this printer. |
|---|
| 753 | |
|---|
| 754 | "OK" is returned in the policy if both printer, user and user print quota |
|---|
| 755 | exist in the Quota Storage. |
|---|
| 756 | Otherwise, the policy as defined for this printer in pykota.conf is returned. |
|---|
| 757 | |
|---|
| 758 | If policy was set to "EXTERNAL" and one of printer, user, or user print quota |
|---|
| 759 | doesn't exist in the Quota Storage, then an external command is launched, as |
|---|
| 760 | defined in the external policy for this printer in pykota.conf |
|---|
| 761 | This external command can do anything, like automatically adding printers |
|---|
| 762 | or users, for example, and finally extracting printer, user and user print |
|---|
| 763 | quota from the Quota Storage is tried a second time. |
|---|
| 764 | |
|---|
| 765 | "EXTERNALERROR" is returned in case policy was "EXTERNAL" and an error status |
|---|
| 766 | was returned by the external command. |
|---|
| 767 | """ |
|---|
| 768 | for passnumber in range(1, 3) : |
|---|
| 769 | printer = self.storage.getPrinter(self.printername) |
|---|
| 770 | user = self.storage.getUser(self.username) |
|---|
| 771 | userpquota = self.storage.getUserPQuota(user, printer) |
|---|
| 772 | if printer.Exists and user.Exists and userpquota.Exists : |
|---|
| 773 | policy = "OK" |
|---|
| 774 | break |
|---|
| 775 | (policy, args) = self.config.getPrinterPolicy(self.printername) |
|---|
| 776 | if policy == "EXTERNAL" : |
|---|
| 777 | commandline = self.formatCommandLine(args, user, printer) |
|---|
| 778 | if not printer.Exists : |
|---|
| 779 | self.logger.log_message(_("Printer %s not registered in the PyKota system, applying external policy (%s) for printer %s") % (self.printername, commandline, self.printername), "info") |
|---|
| 780 | if not user.Exists : |
|---|
| 781 | self.logger.log_message(_("User %s not registered in the PyKota system, applying external policy (%s) for printer %s") % (self.username, commandline, self.printername), "info") |
|---|
| 782 | if not userpquota.Exists : |
|---|
| 783 | self.logger.log_message(_("User %s doesn't have quota on printer %s in the PyKota system, applying external policy (%s) for printer %s") % (self.username, self.printername, commandline, self.printername), "info") |
|---|
| 784 | if os.system(commandline) : |
|---|
| 785 | self.logger.log_message(_("External policy %s for printer %s produced an error. Job rejected. Please check PyKota's configuration files.") % (commandline, self.printername), "error") |
|---|
| 786 | policy = "EXTERNALERROR" |
|---|
| 787 | break |
|---|
| 788 | else : |
|---|
| 789 | if not printer.Exists : |
|---|
| 790 | self.logger.log_message(_("Printer %s not registered in the PyKota system, applying default policy (%s)") % (self.printername, policy), "info") |
|---|
| 791 | if not user.Exists : |
|---|
| 792 | self.logger.log_message(_("User %s not registered in the PyKota system, applying default policy (%s) for printer %s") % (self.username, policy, self.printername), "info") |
|---|
| 793 | if not userpquota.Exists : |
|---|
| 794 | self.logger.log_message(_("User %s doesn't have quota on printer %s in the PyKota system, applying default policy (%s)") % (self.username, self.printername, policy), "info") |
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| 795 | break |
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| 796 | if policy == "EXTERNAL" : |
|---|
| 797 | if not printer.Exists : |
|---|
| 798 | self.logger.log_message(_("Printer %s still not registered in the PyKota system, job will be rejected") % self.printername, "info") |
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| 799 | if not user.Exists : |
|---|
| 800 | self.logger.log_message(_("User %s still not registered in the PyKota system, job will be rejected on printer %s") % (self.username, self.printername), "info") |
|---|
| 801 | if not userpquota.Exists : |
|---|
| 802 | self.logger.log_message(_("User %s still doesn't have quota on printer %s in the PyKota system, job will be rejected") % (self.username, self.printername), "info") |
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| 803 | return (policy, printer, user, userpquota) |
|---|
| 804 | |
|---|
| 805 | def mainWork(self) : |
|---|
| 806 | """Main work is done here.""" |
|---|
| 807 | (policy, printer, user, userpquota) = self.getPrinterUserAndUserPQuota() |
|---|
| 808 | # TODO : check for last user's quota in case pykota filter is used with querying |
|---|
| 809 | if policy == "EXTERNALERROR" : |
|---|
| 810 | # Policy was 'EXTERNAL' and the external command returned an error code |
|---|
| 811 | return self.removeJob() |
|---|
| 812 | elif policy == "EXTERNAL" : |
|---|
| 813 | # Policy was 'EXTERNAL' and the external command wasn't able |
|---|
| 814 | # to add either the printer, user or user print quota |
|---|
| 815 | return self.removeJob() |
|---|
| 816 | elif policy == "DENY" : |
|---|
| 817 | # Either printer, user or user print quota doesn't exist, |
|---|
| 818 | # and the job should be rejected. |
|---|
| 819 | return self.removeJob() |
|---|
| 820 | else : |
|---|
| 821 | if policy not in ("OK", "ALLOW") : |
|---|
| 822 | self.logger.log_message(_("Invalid policy %s for printer %s") % (policy, self.printername)) |
|---|
| 823 | return self.removeJob() |
|---|
| 824 | else : |
|---|
| 825 | return self.doWork(policy, printer, user, userpquota) |
|---|
