| 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 1.115 2004/07/21 09:35:48 jalet |
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| 25 | # Software accounting seems to be OK with LPRng support now |
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| 26 | # |
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| 27 | # Revision 1.114 2004/07/20 22:19:45 jalet |
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| 28 | # Sanitized a bit + use of gettext |
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| 29 | # |
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| 30 | # Revision 1.113 2004/07/17 20:37:27 jalet |
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| 31 | # Missing file... Am I really stupid ? |
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| 32 | # |
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| 33 | # Revision 1.112 2004/07/16 12:22:47 jalet |
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| 34 | # LPRng support early version |
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| 35 | # |
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| 36 | # Revision 1.111 2004/07/06 18:09:42 jalet |
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| 37 | # Reduced the set of invalid characters in names |
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| 38 | # |
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| 39 | # Revision 1.110 2004/07/01 19:56:42 jalet |
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| 40 | # Better dispatching of error messages |
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| 41 | # |
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| 42 | # Revision 1.109 2004/07/01 17:45:49 jalet |
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| 43 | # Added code to handle the description field for printers |
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| 44 | # |
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| 45 | # Revision 1.108 2004/06/24 23:09:30 jalet |
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| 46 | # Also prints read size on last block |
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| 47 | # |
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| 48 | # Revision 1.107 2004/06/23 13:03:28 jalet |
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| 49 | # Catches accounter configuration errors earlier |
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| 50 | # |
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| 51 | # Revision 1.106 2004/06/22 09:31:18 jalet |
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| 52 | # Always send some debug info to CUPS' back channel stream (stderr) as |
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| 53 | # informationnal messages. |
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| 54 | # |
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| 55 | # Revision 1.105 2004/06/21 08:17:38 jalet |
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| 56 | # Added version number in subject message for directive crashrecipient. |
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| 57 | # |
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| 58 | # Revision 1.104 2004/06/18 13:34:49 jalet |
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| 59 | # Now all tracebacks include PyKota's version number |
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| 60 | # |
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| 61 | # Revision 1.103 2004/06/18 13:17:26 jalet |
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| 62 | # Now includes PyKota's version number in messages sent by the crashrecipient |
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| 63 | # directive. |
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| 64 | # |
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| 65 | # Revision 1.102 2004/06/17 13:26:51 jalet |
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| 66 | # Better exception handling code |
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| 67 | # |
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| 68 | # Revision 1.101 2004/06/16 20:56:34 jalet |
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| 69 | # Smarter initialisation code |
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| 70 | # |
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| 71 | # Revision 1.100 2004/06/11 08:16:03 jalet |
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| 72 | # More exceptions catched in case of very early failure. |
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| 73 | # |
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| 74 | # Revision 1.99 2004/06/11 07:07:38 jalet |
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| 75 | # Now detects and logs configuration syntax errors instead of failing without |
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| 76 | # any notice message. |
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| 77 | # |
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| 78 | # Revision 1.98 2004/06/08 19:27:12 jalet |
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| 79 | # Doesn't ignore SIGCHLD anymore |
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| 80 | # |
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| 81 | # Revision 1.97 2004/06/07 22:45:35 jalet |
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| 82 | # Now accepts a job when enforcement is STRICT and predicted account balance |
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| 83 | # is equal to 0.0 : since the job hasn't been printed yet, only its printing |
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| 84 | # will really render balance equal to 0.0, so we should be allowed to print. |
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| 85 | # |
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| 86 | # Revision 1.96 2004/06/05 22:18:04 jalet |
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| 87 | # Now catches some exceptions earlier. |
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| 88 | # storage.py and ldapstorage.py : removed old comments |
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| 89 | # |
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| 90 | # Revision 1.95 2004/06/03 21:50:34 jalet |
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| 91 | # Improved error logging. |
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| 92 | # crashrecipient directive added. |
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| 93 | # Now exports the job's size in bytes too. |
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| 94 | # |
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| 95 | # Revision 1.94 2004/06/03 08:51:03 jalet |
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| 96 | # logs job's size in bytes now |
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| 97 | # |
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| 98 | # Revision 1.93 2004/06/02 21:51:02 jalet |
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| 99 | # Moved the sigterm capturing elsewhere |
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| 100 | # |
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| 101 | # Revision 1.92 2004/06/02 13:21:38 jalet |
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| 102 | # Debug message added |
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| 103 | # |
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| 104 | # Revision 1.91 2004/05/25 05:17:52 jalet |
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| 105 | # Now precomputes the job's size only if current printer's enforcement |
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| 106 | # is "STRICT" |
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| 107 | # |
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| 108 | # Revision 1.90 2004/05/24 22:45:49 jalet |
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| 109 | # New 'enforcement' directive added |
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| 110 | # Polling loop improvements |
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| 111 | # |
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| 112 | # Revision 1.89 2004/05/21 22:02:52 jalet |
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| 113 | # Preliminary work on pre-accounting |
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| 114 | # |
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| 115 | # Revision 1.88 2004/05/18 14:49:20 jalet |
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| 116 | # Big code changes to completely remove the need for "requester" directives, |
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| 117 | # jsut use "hardware(... your previous requester directive's content ...)" |
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| 118 | # |
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| 119 | # Revision 1.87 2004/05/17 19:14:59 jalet |
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| 120 | # Now catches SIGPIPE and SIGCHLD |
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| 121 | # |
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| 122 | # Revision 1.86 2004/05/13 13:59:28 jalet |
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| 123 | # Code simplifications |
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| 124 | # |
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| 125 | # Revision 1.85 2004/05/11 08:26:27 jalet |
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| 126 | # Now catches connection problems to SMTP server |
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| 127 | # |
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| 128 | # Revision 1.84 2004/04/21 08:36:32 jalet |
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| 129 | # Exports the PYKOTASTATUS environment variable when SIGTERM is received. |
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| 130 | # |
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| 131 | # Revision 1.83 2004/04/16 17:03:49 jalet |
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| 132 | # The list of printers groups the current printer is a member of is |
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| 133 | # now exported in the PYKOTAPGROUPS environment variable |
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| 134 | # |
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| 135 | # Revision 1.82 2004/04/13 09:38:03 jalet |
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| 136 | # More work on correct child processes handling |
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| 137 | # |
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| 138 | # Revision 1.81 2004/04/09 22:24:47 jalet |
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| 139 | # Began work on correct handling of child processes when jobs are cancelled by |
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| 140 | # the user. Especially important when an external requester is running for a |
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| 141 | # long time. |
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| 142 | # |
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| 143 | # Revision 1.80 2004/04/06 12:00:21 jalet |
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| 144 | # uninitialized values caused problems |
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| 145 | # |
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| 146 | # Revision 1.79 2004/03/28 21:01:29 jalet |
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| 147 | # PYKOTALIMITBY environment variable is now exported too |
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| 148 | # |
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| 149 | # Revision 1.78 2004/03/08 20:13:25 jalet |
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| 150 | # Allow names to begin with a digit |
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| 151 | # |
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| 152 | # Revision 1.77 2004/03/03 13:10:35 jalet |
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| 153 | # Now catches all smtplib exceptions when there's a problem sending messages |
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| 154 | # |
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| 155 | # Revision 1.76 2004/03/01 14:34:15 jalet |
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| 156 | # PYKOTAPHASE wasn't set at the right time at the end of data transmission |
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| 157 | # to underlying layer (real backend) |
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| 158 | # |
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| 159 | # Revision 1.75 2004/03/01 11:23:25 jalet |
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| 160 | # Pre and Post hooks to external commands are available in the cupspykota |
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| 161 | # backend. Forthe pykota filter they will be implemented real soon now. |
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| 162 | # |
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| 163 | # Revision 1.74 2004/02/26 14:18:07 jalet |
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| 164 | # Should fix the remaining bugs wrt printers groups and users groups. |
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| 165 | # |
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| 166 | # Revision 1.73 2004/02/19 14:20:21 jalet |
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| 167 | # maildomain pykota.conf directive added. |
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| 168 | # Small improvements on mail headers quality. |
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| 169 | # |
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| 170 | # Revision 1.72 2004/01/14 15:51:19 jalet |
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| 171 | # Docstring added. |
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| 172 | # |
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| 173 | # Revision 1.71 2004/01/11 23:22:42 jalet |
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| 174 | # Major code refactoring, it's way cleaner, and now allows automated addition |
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| 175 | # of printers on first print. |
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| 176 | # |
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| 177 | # Revision 1.70 2004/01/08 14:10:32 jalet |
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| 178 | # Copyright year changed. |
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| 179 | # |
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| 180 | # Revision 1.69 2004/01/05 16:02:18 jalet |
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| 181 | # Dots in user, groups and printer names should be allowed. |
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| 182 | # |
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| 183 | # Revision 1.68 2004/01/02 17:38:40 jalet |
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| 184 | # This time it should be better... |
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| 185 | # |
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| 186 | # Revision 1.67 2004/01/02 17:37:09 jalet |
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| 187 | # I'm completely stupid !!! Better to not talk while coding ! |
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| 188 | # |
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| 189 | # Revision 1.66 2004/01/02 17:31:26 jalet |
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| 190 | # Forgot to remove some code |
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| 191 | # |
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| 192 | # Revision 1.65 2003/12/06 08:14:38 jalet |
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| 193 | # Added support for CUPS device uris which contain authentication information. |
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| 194 | # |
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| 195 | # Revision 1.64 2003/11/29 22:03:17 jalet |
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| 196 | # Some code refactoring work. New code is not used at this time. |
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| 197 | # |
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| 198 | # Revision 1.63 2003/11/29 20:06:20 jalet |
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| 199 | # Added 'utolower' configuration option to convert all usernames to |
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| 200 | # lowercase when printing. All database accesses are still and will |
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| 201 | # remain case sensitive though. |
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| 202 | # |
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| 203 | # Revision 1.62 2003/11/25 22:37:22 jalet |
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| 204 | # Small code move |
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| 205 | # |
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| 206 | # Revision 1.61 2003/11/25 22:03:28 jalet |
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| 207 | # No more message on stderr when the translation is not available. |
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| 208 | # |
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| 209 | # Revision 1.60 2003/11/25 21:54:05 jalet |
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| 210 | # updated FAQ |
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| 211 | # |
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| 212 | # Revision 1.59 2003/11/25 13:33:43 jalet |
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| 213 | # Puts 'root' instead of '' when printing from CUPS web interface (which |
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| 214 | # gives an empty username) |
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| 215 | # |
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| 216 | # Revision 1.58 2003/11/21 14:28:45 jalet |
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| 217 | # More complete job history. |
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| 218 | # |
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| 219 | # Revision 1.57 2003/11/19 23:19:38 jalet |
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| 220 | # Code refactoring work. |
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| 221 | # Explicit redirection to /dev/null has to be set in external policy now, just |
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| 222 | # like in external mailto. |
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| 223 | # |
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| 224 | # Revision 1.56 2003/11/19 07:40:20 jalet |
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| 225 | # Missing import statement. |
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| 226 | # Better documentation for mailto: external(...) |
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| 227 | # |
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| 228 | # Revision 1.55 2003/11/18 23:43:12 jalet |
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| 229 | # Mailto can be any external command now, as usual. |
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| 230 | # |
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| 231 | # Revision 1.54 2003/10/24 21:52:46 jalet |
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| 232 | # Now can force language when coming from CGI script. |
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| 233 | # |
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| 234 | # Revision 1.53 2003/10/08 21:41:38 jalet |
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| 235 | # External policies for printers works ! |
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| 236 | # We can now auto-add users on first print, and do other useful things if needed. |
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| 237 | # |
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| 238 | # Revision 1.52 2003/10/07 09:07:28 jalet |
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| 239 | # Character encoding added to please latest version of Python |
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| 240 | # |
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| 241 | # Revision 1.51 2003/10/06 14:21:41 jalet |
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| 242 | # Test reversed to not retrieve group members when no messages for them. |
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| 243 | # |
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| 244 | # Revision 1.50 2003/10/02 20:23:18 jalet |
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| 245 | # Storage caching mechanism added. |
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| 246 | # |
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| 247 | # Revision 1.49 2003/07/29 20:55:17 jalet |
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| 248 | # 1.14 is out ! |
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| 249 | # |
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| 250 | # Revision 1.48 2003/07/21 23:01:56 jalet |
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| 251 | # Modified some messages aout soft limit |
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| 252 | # |
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| 253 | # Revision 1.47 2003/07/16 21:53:08 jalet |
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| 254 | # Really big modifications wrt new configuration file's location and content. |
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| 255 | # |
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| 256 | # Revision 1.46 2003/07/09 20:17:07 jalet |
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| 257 | # Email field added to PostgreSQL schema |
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| 258 | # |
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| 259 | # Revision 1.45 2003/07/08 19:43:51 jalet |
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| 260 | # Configurable warning messages. |
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| 261 | # Poor man's treshold value added. |
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| 262 | # |
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| 263 | # Revision 1.44 2003/07/07 11:49:24 jalet |
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| 264 | # Lots of small fixes with the help of PyChecker |
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| 265 | # |
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| 266 | # Revision 1.43 2003/07/04 09:06:32 jalet |
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| 267 | # Small bug fix wrt undefined "LimitBy" field. |
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| 268 | # |
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| 269 | # Revision 1.42 2003/06/30 12:46:15 jalet |
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| 270 | # Extracted reporting code. |
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| 271 | # |
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| 272 | # Revision 1.41 2003/06/25 14:10:01 jalet |
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| 273 | # Hey, it may work (edpykota --reset excepted) ! |
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| 274 | # |
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| 275 | # Revision 1.40 2003/06/10 16:37:54 jalet |
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| 276 | # Deletion of the second user which is not needed anymore. |
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| 277 | # Added a debug configuration field in /etc/pykota.conf |
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| 278 | # All queries can now be sent to the logger in debug mode, this will |
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| 279 | # greatly help improve performance when time for this will come. |
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| 280 | # |
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| 281 | # Revision 1.39 2003/04/29 18:37:54 jalet |
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| 282 | # Pluggable accounting methods (actually doesn't support external scripts) |
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| 283 | # |
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| 284 | # Revision 1.38 2003/04/24 11:53:48 jalet |
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| 285 | # Default policy for unknown users/groups is to DENY printing instead |
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| 286 | # of the previous default to ALLOW printing. This is to solve an accuracy |
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| 287 | # problem. If you set the policy to ALLOW, jobs printed by in nexistant user |
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| 288 | # (from PyKota's POV) will be charged to the next user who prints on the |
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| 289 | # same printer. |
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| 290 | # |
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| 291 | # Revision 1.37 2003/04/24 08:08:27 jalet |
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| 292 | # Debug message forgotten |
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| 293 | # |
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| 294 | # Revision 1.36 2003/04/24 07:59:40 jalet |
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| 295 | # LPRng support now works ! |
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| 296 | # |
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| 297 | # Revision 1.35 2003/04/23 22:13:57 jalet |
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| 298 | # Preliminary support for LPRng added BUT STILL UNTESTED. |
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| 299 | # |
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| 300 | # Revision 1.34 2003/04/17 09:26:21 jalet |
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| 301 | # repykota now reports account balances too. |
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| 302 | # |
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| 303 | # Revision 1.33 2003/04/16 12:35:49 jalet |
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| 304 | # Groups quota work now ! |
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| 305 | # |
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| 306 | # Revision 1.32 2003/04/16 08:53:14 jalet |
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| 307 | # Printing can now be limited either by user's account balance or by |
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| 308 | # page quota (the default). Quota report doesn't include account balance |
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| 309 | # yet, though. |
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| 310 | # |
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| 311 | # Revision 1.31 2003/04/15 11:30:57 jalet |
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| 312 | # More work done on money print charging. |
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| 313 | # Minor bugs corrected. |
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| 314 | # All tools now access to the storage as priviledged users, repykota excepted. |
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| 315 | # |
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| 316 | # Revision 1.30 2003/04/10 21:47:20 jalet |
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| 317 | # Job history added. Upgrade script neutralized for now ! |
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| 318 | # |
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| 319 | # Revision 1.29 2003/03/29 13:45:27 jalet |
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| 320 | # GPL paragraphs were incorrectly (from memory) copied into the sources. |
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| 321 | # Two README files were added. |
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| 322 | # Upgrade script for PostgreSQL pre 1.01 schema was added. |
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| 323 | # |
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| 324 | # Revision 1.28 2003/03/29 13:08:28 jalet |
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| 325 | # Configuration is now expected to be found in /etc/pykota.conf instead of |
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| 326 | # in /etc/cups/pykota.conf |
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| 327 | # Installation script can move old config files to the new location if needed. |
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| 328 | # Better error handling if configuration file is absent. |
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| 329 | # |
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| 330 | # Revision 1.27 2003/03/15 23:01:28 jalet |
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| 331 | # New mailto option in configuration file added. |
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| 332 | # No time to test this tonight (although it should work). |
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| 333 | # |
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| 334 | # Revision 1.26 2003/03/09 23:58:16 jalet |
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| 335 | # Comment |
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| 336 | # |
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| 337 | # Revision 1.25 2003/03/07 22:56:14 jalet |
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| 338 | # 0.99 is out with some bug fixes. |
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| 339 | # |
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| 340 | # Revision 1.24 2003/02/27 23:48:41 jalet |
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| 341 | # Correctly maps PyKota's log levels to syslog log levels |
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| 342 | # |
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| 343 | # Revision 1.23 2003/02/27 22:55:20 jalet |
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| 344 | # WARN log priority doesn't exist. |
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| 345 | # |
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| 346 | # Revision 1.22 2003/02/27 09:09:20 jalet |
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| 347 | # Added a method to match strings against wildcard patterns |
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| 348 | # |
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| 349 | # Revision 1.21 2003/02/17 23:01:56 jalet |
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| 350 | # Typos |
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| 351 | # |
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| 352 | # Revision 1.20 2003/02/17 22:55:01 jalet |
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| 353 | # More options can now be set per printer or globally : |
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| 354 | # |
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| 355 | # admin |
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| 356 | # adminmail |
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| 357 | # gracedelay |
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| 358 | # requester |
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| 359 | # |
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| 360 | # the printer option has priority when both are defined. |
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| 361 | # |
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| 362 | # Revision 1.19 2003/02/10 11:28:45 jalet |
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| 363 | # Localization |
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| 364 | # |
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| 365 | # Revision 1.18 2003/02/10 01:02:17 jalet |
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| 366 | # External requester is about to work, but I must sleep |
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| 367 | # |
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| 368 | # Revision 1.17 2003/02/09 13:05:43 jalet |
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| 369 | # Internationalization continues... |
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| 370 | # |
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| 371 | # Revision 1.16 2003/02/09 12:56:53 jalet |
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| 372 | # Internationalization begins... |
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| 373 | # |
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| 374 | # Revision 1.15 2003/02/08 22:09:52 jalet |
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| 375 | # Name check method moved here |
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| 376 | # |
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| 377 | # Revision 1.14 2003/02/07 10:42:45 jalet |
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| 378 | # Indentation problem |
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| 379 | # |
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| 380 | # Revision 1.13 2003/02/07 08:34:16 jalet |
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| 381 | # Test wrt date limit was wrong |
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| 382 | # |
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| 383 | # Revision 1.12 2003/02/06 23:20:02 jalet |
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| 384 | # warnpykota doesn't need any user/group name argument, mimicing the |
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| 385 | # warnquota disk quota tool. |
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| 386 | # |
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| 387 | # Revision 1.11 2003/02/06 22:54:33 jalet |
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| 388 | # warnpykota should be ok |
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| 389 | # |
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| 390 | # Revision 1.10 2003/02/06 15:03:11 jalet |
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| 391 | # added a method to set the limit date |
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| 392 | # |
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| 393 | # Revision 1.9 2003/02/06 10:39:23 jalet |
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| 394 | # Preliminary edpykota work. |
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| 395 | # |
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| 396 | # Revision 1.8 2003/02/06 09:19:02 jalet |
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| 397 | # More robust behavior (hopefully) when the user or printer is not managed |
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| 398 | # correctly by the Quota System : e.g. cupsFilter added in ppd file, but |
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| 399 | # printer and/or user not 'yet?' in storage. |
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| 400 | # |
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| 401 | # Revision 1.7 2003/02/06 00:00:45 jalet |
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| 402 | # Now includes the printer name in email messages |
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| 403 | # |
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| 404 | # Revision 1.6 2003/02/05 23:55:02 jalet |
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| 405 | # Cleaner email messages |
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| 406 | # |
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| 407 | # Revision 1.5 2003/02/05 23:45:09 jalet |
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| 408 | # Better DateTime manipulation wrt grace delay |
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| 409 | # |
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| 410 | # Revision 1.4 2003/02/05 23:26:22 jalet |
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| 411 | # Incorrect handling of grace delay |
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| 412 | # |
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| 413 | # Revision 1.3 2003/02/05 22:16:20 jalet |
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| 414 | # DEVICE_URI is undefined outside of CUPS, i.e. for normal command line tools |
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| 415 | # |
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| 416 | # Revision 1.2 2003/02/05 22:10:29 jalet |
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| 417 | # Typos |
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| 418 | # |
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| 419 | # Revision 1.1 2003/02/05 21:28:17 jalet |
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| 420 | # Initial import into CVS |
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| 421 | # |
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| 422 | # |
|---|
| 423 | # |
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| 424 | |
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| 425 | import sys |
|---|
| 426 | import os |
|---|
| 427 | import fnmatch |
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| 428 | import getopt |
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| 429 | import smtplib |
|---|
| 430 | import gettext |
|---|
| 431 | import locale |
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| 432 | import signal |
|---|
| 433 | import socket |
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| 434 | import tempfile |
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| 435 | import ConfigParser |
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| 436 | |
|---|
| 437 | from mx import DateTime |
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| 438 | |
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| 439 | from pykota import version, config, storage, logger, accounter, pdlanalyzer |
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| 440 | |
|---|
| 441 | class PyKotaToolError(Exception): |
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| 442 | """An exception for PyKota config related stuff.""" |
|---|
| 443 | def __init__(self, message = ""): |
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| 444 | self.message = message |
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| 445 | Exception.__init__(self, message) |
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| 446 | def __repr__(self): |
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| 447 | return self.message |
|---|
| 448 | __str__ = __repr__ |
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| 449 | |
|---|
| 450 | def crashed(message) : |
|---|
| 451 | """Minimal crash method.""" |
|---|
| 452 | import traceback |
|---|
| 453 | lines = [] |
|---|
| 454 | for line in traceback.format_exception(*sys.exc_info()) : |
|---|
| 455 | lines.extend([l for l in line.split("\n") if l]) |
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| 456 | msg = "ERROR: ".join(["%s\n" % l for l in (["ERROR: PyKota v%s" % version.__version__, message] + lines)]) |
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| 457 | sys.stderr.write(msg) |
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| 458 | sys.stderr.flush() |
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| 459 | return msg |
|---|
| 460 | |
|---|
| 461 | class PyKotaTool : |
|---|
| 462 | """Base class for all PyKota command line tools.""" |
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| 463 | def __init__(self, lang=None, doc="PyKota %s (c) 2003-2004 %s" % (version.__version__, version.__author__)) : |
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| 464 | """Initializes the command line tool.""" |
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| 465 | # locale stuff |
|---|
| 466 | try : |
|---|
| 467 | locale.setlocale(locale.LC_ALL, lang) |
|---|
| 468 | gettext.install("pykota") |
|---|
| 469 | except (locale.Error, IOError) : |
|---|
| 470 | gettext.NullTranslations().install() |
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| 471 | |
|---|
| 472 | # pykota specific stuff |
|---|
| 473 | self.documentation = doc |
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| 474 | try : |
|---|
| 475 | self.config = config.PyKotaConfig("/etc/pykota") |
|---|
| 476 | except ConfigParser.ParsingError, msg : |
|---|
| 477 | sys.stderr.write("ERROR: Problem encountered while parsing configuration file : %s\n" % msg) |
|---|
| 478 | sys.stderr.flush() |
|---|
| 479 | sys.exit(-1) |
|---|
| 480 | |
|---|
| 481 | try : |
|---|
| 482 | self.debug = self.config.getDebug() |
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| 483 | self.smtpserver = self.config.getSMTPServer() |
|---|
| 484 | self.maildomain = self.config.getMailDomain() |
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| 485 | self.logger = logger.openLogger(self.config.getLoggingBackend()) |
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| 486 | self.storage = storage.openConnection(self) |
|---|
| 487 | except (config.PyKotaConfigError, logger.PyKotaLoggingError, storage.PyKotaStorageError), msg : |
|---|
| 488 | self.crashed(msg) |
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| 489 | raise |
|---|
| 490 | self.softwareJobSize = 0 |
|---|
| 491 | self.softwareJobPrice = 0.0 |
|---|
| 492 | |
|---|
| 493 | def logdebug(self, message) : |
|---|
| 494 | """Logs something to debug output if debug is enabled.""" |
|---|
| 495 | if self.debug : |
|---|
| 496 | self.logger.log_message(message, "debug") |
|---|
| 497 | |
|---|
| 498 | def printInfo(self, message, level="info") : |
|---|
| 499 | """Sends a message to standard error.""" |
|---|
| 500 | sys.stderr.write("%s: %s\n" % (level.upper(), message)) |
|---|
| 501 | sys.stderr.flush() |
|---|
| 502 | |
|---|
| 503 | def clean(self) : |
|---|
| 504 | """Ensures that the database is closed.""" |
|---|
| 505 | try : |
|---|
| 506 | self.storage.close() |
|---|
| 507 | except (TypeError, NameError, AttributeError) : |
|---|
| 508 | pass |
|---|
| 509 | |
|---|
| 510 | def display_version_and_quit(self) : |
|---|
| 511 | """Displays version number, then exists successfully.""" |
|---|
| 512 | self.clean() |
|---|
| 513 | print version.__version__ |
|---|
| 514 | sys.exit(0) |
|---|
| 515 | |
|---|
| 516 | def display_usage_and_quit(self) : |
|---|
| 517 | """Displays command line usage, then exists successfully.""" |
|---|
| 518 | self.clean() |
|---|
| 519 | print self.documentation |
|---|
| 520 | sys.exit(0) |
|---|
| 521 | |
|---|
| 522 | def crashed(self, message) : |
|---|
| 523 | """Outputs a crash message, and optionally sends it to software author.""" |
|---|
| 524 | msg = crashed(message) |
|---|
| 525 | try : |
|---|
| 526 | crashrecipient = self.config.getCrashRecipient() |
|---|
| 527 | if crashrecipient : |
|---|
| 528 | admin = self.config.getAdminMail("global") # Nice trick, isn't it ? |
|---|
| 529 | fullmessage = "========== Traceback :\n\n%s\n\n========== sys.argv :\n\n%s\n\n========== Environment :\n\n%s\n" % \ |
|---|
| 530 | (msg, \ |
|---|
| 531 | "\n".join([" %s" % repr(a) for a in sys.argv]), \ |
|---|
| 532 | "\n".join([" %s=%s" % (k, v) for (k, v) in os.environ.items()])) |
|---|
| 533 | server = smtplib.SMTP(self.smtpserver) |
|---|
| 534 | server.sendmail(admin, [admin, crashrecipient], \ |
|---|
| 535 | "From: %s\nTo: %s\nCc: %s\nSubject: PyKota v%s crash traceback !\n\n%s" % \ |
|---|
| 536 | (admin, crashrecipient, admin, version.__version__, fullmessage)) |
|---|
| 537 | server.quit() |
|---|
| 538 | except : |
|---|
| 539 | pass |
|---|
| 540 | |
|---|
| 541 | def parseCommandline(self, argv, short, long, allownothing=0) : |
|---|
| 542 | """Parses the command line, controlling options.""" |
|---|
| 543 | # split options in two lists: those which need an argument, those which don't need any |
|---|
| 544 | withoutarg = [] |
|---|
| 545 | witharg = [] |
|---|
| 546 | lgs = len(short) |
|---|
| 547 | i = 0 |
|---|
| 548 | while i < lgs : |
|---|
| 549 | ii = i + 1 |
|---|
| 550 | if (ii < lgs) and (short[ii] == ':') : |
|---|
| 551 | # needs an argument |
|---|
| 552 | witharg.append(short[i]) |
|---|
| 553 | ii = ii + 1 # skip the ':' |
|---|
| 554 | else : |
|---|
| 555 | # doesn't need an argument |
|---|
| 556 | withoutarg.append(short[i]) |
|---|
| 557 | i = ii |
|---|
| 558 | |
|---|
| 559 | for option in long : |
|---|
| 560 | if option[-1] == '=' : |
|---|
| 561 | # needs an argument |
|---|
| 562 | witharg.append(option[:-1]) |
|---|
| 563 | else : |
|---|
| 564 | # doesn't need an argument |
|---|
| 565 | withoutarg.append(option) |
|---|
| 566 | |
|---|
| 567 | # we begin with all possible options unset |
|---|
| 568 | parsed = {} |
|---|
| 569 | for option in withoutarg + witharg : |
|---|
| 570 | parsed[option] = None |
|---|
| 571 | |
|---|
| 572 | # then we parse the command line |
|---|
| 573 | args = [] # to not break if something unexpected happened |
|---|
| 574 | try : |
|---|
| 575 | options, args = getopt.getopt(argv, short, long) |
|---|
| 576 | if options : |
|---|
| 577 | for (o, v) in options : |
|---|
| 578 | # we skip the '-' chars |
|---|
| 579 | lgo = len(o) |
|---|
| 580 | i = 0 |
|---|
| 581 | while (i < lgo) and (o[i] == '-') : |
|---|
| 582 | i = i + 1 |
|---|
| 583 | o = o[i:] |
|---|
| 584 | if o in witharg : |
|---|
| 585 | # needs an argument : set it |
|---|
| 586 | parsed[o] = v |
|---|
| 587 | elif o in withoutarg : |
|---|
| 588 | # doesn't need an argument : boolean |
|---|
| 589 | parsed[o] = 1 |
|---|
| 590 | else : |
|---|
| 591 | # should never occur |
|---|
| 592 | raise PyKotaToolError, "Unexpected problem when parsing command line" |
|---|
| 593 | elif (not args) and (not allownothing) and sys.stdin.isatty() : # no option and no argument, we display help if we are a tty |
|---|
| 594 | self.display_usage_and_quit() |
|---|
| 595 | except getopt.error, msg : |
|---|
| 596 | self.printInfo(msg) |
|---|
| 597 | self.display_usage_and_quit() |
|---|
| 598 | return (parsed, args) |
|---|
| 599 | |
|---|
| 600 | def isValidName(self, name) : |
|---|
| 601 | """Checks if a user or printer name is valid.""" |
|---|
| 602 | invalidchars = "/@" |
|---|
| 603 | for c in invalidchars : |
|---|
| 604 | if c in name : |
|---|
| 605 | return 0 |
|---|
| 606 | return 1 |
|---|
| 607 | |
|---|
| 608 | def matchString(self, s, patterns) : |
|---|
| 609 | """Returns 1 if the string s matches one of the patterns, else 0.""" |
|---|
| 610 | for pattern in patterns : |
|---|
| 611 | if fnmatch.fnmatchcase(s, pattern) : |
|---|
| 612 | return 1 |
|---|
| 613 | return 0 |
|---|
| 614 | |
|---|
| 615 | def sendMessage(self, adminmail, touser, fullmessage) : |
|---|
| 616 | """Sends an email message containing headers to some user.""" |
|---|
| 617 | if "@" not in touser : |
|---|
| 618 | touser = "%s@%s" % (touser, self.maildomain or self.smtpserver) |
|---|
| 619 | try : |
|---|
| 620 | server = smtplib.SMTP(self.smtpserver) |
|---|
| 621 | except socket.error, msg : |
|---|
| 622 | self.printInfo(_("Impossible to connect to SMTP server : %s") % msg, "error") |
|---|
| 623 | else : |
|---|
| 624 | try : |
|---|
| 625 | server.sendmail(adminmail, [touser], "From: %s\nTo: %s\n%s" % (adminmail, touser, fullmessage)) |
|---|
| 626 | except smtplib.SMTPException, answer : |
|---|
| 627 | for (k, v) in answer.recipients.items() : |
|---|
| 628 | self.printInfo(_("Impossible to send mail to %s, error %s : %s") % (k, v[0], v[1]), "error") |
|---|
| 629 | server.quit() |
|---|
| 630 | |
|---|
| 631 | def sendMessageToUser(self, admin, adminmail, user, subject, message) : |
|---|
| 632 | """Sends an email message to a user.""" |
|---|
| 633 | message += _("\n\nPlease contact your system administrator :\n\n\t%s - <%s>\n") % (admin, adminmail) |
|---|
| 634 | self.sendMessage(adminmail, user.Email or user.Name, "Subject: %s\n\n%s" % (subject, message)) |
|---|
| 635 | |
|---|
| 636 | def sendMessageToAdmin(self, adminmail, subject, message) : |
|---|
| 637 | """Sends an email message to the Print Quota administrator.""" |
|---|
| 638 | self.sendMessage(adminmail, adminmail, "Subject: %s\n\n%s" % (subject, message)) |
|---|
| 639 | |
|---|
| 640 | def _checkUserPQuota(self, userpquota) : |
|---|
| 641 | """Checks the user quota on a printer and deny or accept the job.""" |
|---|
| 642 | # then we check the user's own quota |
|---|
| 643 | # if we get there we are sure that policy is not EXTERNAL |
|---|
| 644 | user = userpquota.User |
|---|
| 645 | printer = userpquota.Printer |
|---|
| 646 | enforcement = self.config.getPrinterEnforcement(printer.Name) |
|---|
| 647 | self.logdebug("Checking user %s's quota on printer %s" % (user.Name, printer.Name)) |
|---|
| 648 | (policy, dummy) = self.config.getPrinterPolicy(userpquota.Printer.Name) |
|---|
| 649 | if not userpquota.Exists : |
|---|
| 650 | # Unknown userquota |
|---|
| 651 | if policy == "ALLOW" : |
|---|
| 652 | action = "POLICY_ALLOW" |
|---|
| 653 | else : |
|---|
| 654 | action = "POLICY_DENY" |
|---|
| 655 | self.printInfo(_("Unable to match user %s on printer %s, applying default policy (%s)") % (user.Name, printer.Name, action)) |
|---|
| 656 | else : |
|---|
| 657 | pagecounter = int(userpquota.PageCounter or 0) |
|---|
| 658 | if enforcement == "STRICT" : |
|---|
| 659 | pagecounter += self.softwareJobSize |
|---|
| 660 | if userpquota.SoftLimit is not None : |
|---|
| 661 | softlimit = int(userpquota.SoftLimit) |
|---|
| 662 | if pagecounter < softlimit : |
|---|
| 663 | action = "ALLOW" |
|---|
| 664 | else : |
|---|
| 665 | if userpquota.HardLimit is None : |
|---|
| 666 | # only a soft limit, this is equivalent to having only a hard limit |
|---|
| 667 | action = "DENY" |
|---|
| 668 | else : |
|---|
| 669 | hardlimit = int(userpquota.HardLimit) |
|---|
| 670 | if softlimit <= pagecounter < hardlimit : |
|---|
| 671 | now = DateTime.now() |
|---|
| 672 | if userpquota.DateLimit is not None : |
|---|
| 673 | datelimit = DateTime.ISO.ParseDateTime(userpquota.DateLimit) |
|---|
| 674 | else : |
|---|
| 675 | datelimit = now + self.config.getGraceDelay(printer.Name) |
|---|
| 676 | userpquota.setDateLimit(datelimit) |
|---|
| 677 | if now < datelimit : |
|---|
| 678 | action = "WARN" |
|---|
| 679 | else : |
|---|
| 680 | action = "DENY" |
|---|
| 681 | else : |
|---|
| 682 | action = "DENY" |
|---|
| 683 | else : |
|---|
| 684 | if userpquota.HardLimit is not None : |
|---|
| 685 | # no soft limit, only a hard one. |
|---|
| 686 | hardlimit = int(userpquota.HardLimit) |
|---|
| 687 | if pagecounter < hardlimit : |
|---|
| 688 | action = "ALLOW" |
|---|
| 689 | else : |
|---|
| 690 | action = "DENY" |
|---|
| 691 | else : |
|---|
| 692 | # Both are unset, no quota, i.e. accounting only |
|---|
| 693 | action = "ALLOW" |
|---|
| 694 | return action |
|---|
| 695 | |
|---|
| 696 | def checkGroupPQuota(self, grouppquota) : |
|---|
| 697 | """Checks the group quota on a printer and deny or accept the job.""" |
|---|
| 698 | group = grouppquota.Group |
|---|
| 699 | printer = grouppquota.Printer |
|---|
| 700 | enforcement = self.config.getPrinterEnforcement(printer.Name) |
|---|
| 701 | self.logdebug("Checking group %s's quota on printer %s" % (group.Name, printer.Name)) |
|---|
| 702 | if group.LimitBy and (group.LimitBy.lower() == "balance") : |
|---|
| 703 | val = group.AccountBalance |
|---|
| 704 | if enforcement == "STRICT" : |
|---|
| 705 | val -= self.softwareJobPrice # use precomputed size. |
|---|
| 706 | if val <= 0.0 : |
|---|
| 707 | action = "DENY" |
|---|
| 708 | elif val <= self.config.getPoorMan() : |
|---|
| 709 | action = "WARN" |
|---|
| 710 | else : |
|---|
| 711 | action = "ALLOW" |
|---|
| 712 | if (enforcement == "STRICT") and (val == 0.0) : |
|---|
| 713 | action = "WARN" # we can still print until account is 0 |
|---|
| 714 | else : |
|---|
| 715 | val = grouppquota.PageCounter |
|---|
| 716 | if enforcement == "STRICT" : |
|---|
| 717 | val += self.softwareJobSize |
|---|
| 718 | if grouppquota.SoftLimit is not None : |
|---|
| 719 | softlimit = int(grouppquota.SoftLimit) |
|---|
| 720 | if val < softlimit : |
|---|
| 721 | action = "ALLOW" |
|---|
| 722 | else : |
|---|
| 723 | if grouppquota.HardLimit is None : |
|---|
| 724 | # only a soft limit, this is equivalent to having only a hard limit |
|---|
| 725 | action = "DENY" |
|---|
| 726 | else : |
|---|
| 727 | hardlimit = int(grouppquota.HardLimit) |
|---|
| 728 | if softlimit <= val < hardlimit : |
|---|
| 729 | now = DateTime.now() |
|---|
| 730 | if grouppquota.DateLimit is not None : |
|---|
| 731 | datelimit = DateTime.ISO.ParseDateTime(grouppquota.DateLimit) |
|---|
| 732 | else : |
|---|
| 733 | datelimit = now + self.config.getGraceDelay(printer.Name) |
|---|
| 734 | grouppquota.setDateLimit(datelimit) |
|---|
| 735 | if now < datelimit : |
|---|
| 736 | action = "WARN" |
|---|
| 737 | else : |
|---|
| 738 | action = "DENY" |
|---|
| 739 | else : |
|---|
| 740 | action = "DENY" |
|---|
| 741 | else : |
|---|
| 742 | if grouppquota.HardLimit is not None : |
|---|
| 743 | # no soft limit, only a hard one. |
|---|
| 744 | hardlimit = int(grouppquota.HardLimit) |
|---|
| 745 | if val < hardlimit : |
|---|
| 746 | action = "ALLOW" |
|---|
| 747 | else : |
|---|
| 748 | action = "DENY" |
|---|
| 749 | else : |
|---|
| 750 | # Both are unset, no quota, i.e. accounting only |
|---|
| 751 | action = "ALLOW" |
|---|
| 752 | return action |
|---|
| 753 | |
|---|
| 754 | def checkUserPQuota(self, userpquota) : |
|---|
| 755 | """Checks the user quota on a printer and all its parents and deny or accept the job.""" |
|---|
| 756 | user = userpquota.User |
|---|
| 757 | printer = userpquota.Printer |
|---|
| 758 | |
|---|
| 759 | # indicates that a warning needs to be sent |
|---|
| 760 | warned = 0 |
|---|
| 761 | |
|---|
| 762 | # first we check any group the user is a member of |
|---|
| 763 | for group in self.storage.getUserGroups(user) : |
|---|
| 764 | grouppquota = self.storage.getGroupPQuota(group, printer) |
|---|
| 765 | # for the printer and all its parents |
|---|
| 766 | for gpquota in [ grouppquota ] + grouppquota.ParentPrintersGroupPQuota : |
|---|
| 767 | if gpquota.Exists : |
|---|
| 768 | action = self.checkGroupPQuota(gpquota) |
|---|
| 769 | if action == "DENY" : |
|---|
| 770 | return action |
|---|
| 771 | elif action == "WARN" : |
|---|
| 772 | warned = 1 |
|---|
| 773 | |
|---|
| 774 | # Then we check the user's account balance |
|---|
| 775 | # if we get there we are sure that policy is not EXTERNAL |
|---|
| 776 | (policy, dummy) = self.config.getPrinterPolicy(printer.Name) |
|---|
| 777 | if user.LimitBy and (user.LimitBy.lower() == "balance") : |
|---|
| 778 | self.logdebug("Checking account balance for user %s" % user.Name) |
|---|
| 779 | if user.AccountBalance is None : |
|---|
| 780 | if policy == "ALLOW" : |
|---|
| 781 | action = "POLICY_ALLOW" |
|---|
| 782 | else : |
|---|
| 783 | action = "POLICY_DENY" |
|---|
| 784 | self.printInfo(_("Unable to find user %s's account balance, applying default policy (%s) for printer %s") % (user.Name, action, printer.Name)) |
|---|
| 785 | return action |
|---|
| 786 | else : |
|---|
| 787 | val = float(user.AccountBalance or 0.0) |
|---|
| 788 | enforcement = self.config.getPrinterEnforcement(printer.Name) |
|---|
| 789 | if enforcement == "STRICT" : |
|---|
| 790 | val -= self.softwareJobPrice # use precomputed size. |
|---|
| 791 | if val <= 0.0 : |
|---|
| 792 | action = "DENY" |
|---|
| 793 | elif val <= self.config.getPoorMan() : |
|---|
| 794 | action = "WARN" |
|---|
| 795 | else : |
|---|
| 796 | action = "ALLOW" |
|---|
| 797 | if (enforcement == "STRICT") and (val == 0.0) : |
|---|
| 798 | action = "WARN" # we can still print until account is 0 |
|---|
| 799 | return action |
|---|
| 800 | else : |
|---|
| 801 | # Then check the user quota on current printer and all its parents. |
|---|
| 802 | policyallowed = 0 |
|---|
| 803 | for upquota in [ userpquota ] + userpquota.ParentPrintersUserPQuota : |
|---|
| 804 | action = self._checkUserPQuota(upquota) |
|---|
| 805 | if action in ("DENY", "POLICY_DENY") : |
|---|
| 806 | return action |
|---|
| 807 | elif action == "WARN" : |
|---|
| 808 | warned = 1 |
|---|
| 809 | elif action == "POLICY_ALLOW" : |
|---|
| 810 | policyallowed = 1 |
|---|
| 811 | if warned : |
|---|
| 812 | return "WARN" |
|---|
| 813 | elif policyallowed : |
|---|
| 814 | return "POLICY_ALLOW" |
|---|
| 815 | else : |
|---|
| 816 | return "ALLOW" |
|---|
| 817 | |
|---|
| 818 | def externalMailTo(self, cmd, action, user, printer, message) : |
|---|
| 819 | """Warns the user with an external command.""" |
|---|
| 820 | username = user.Name |
|---|
| 821 | printername = printer.Name |
|---|
| 822 | email = user.Email or user.Name |
|---|
| 823 | if "@" not in email : |
|---|
| 824 | email = "%s@%s" % (email, self.maildomain or self.smtpserver) |
|---|
| 825 | os.system(cmd % locals()) |
|---|
| 826 | |
|---|
| 827 | def formatCommandLine(self, cmd, user, printer) : |
|---|
| 828 | """Executes an external command.""" |
|---|
| 829 | username = user.Name |
|---|
| 830 | printername = printer.Name |
|---|
| 831 | return cmd % locals() |
|---|
| 832 | |
|---|
| 833 | def warnGroupPQuota(self, grouppquota) : |
|---|
| 834 | """Checks a group quota and send messages if quota is exceeded on current printer.""" |
|---|
| 835 | group = grouppquota.Group |
|---|
| 836 | printer = grouppquota.Printer |
|---|
| 837 | admin = self.config.getAdmin(printer.Name) |
|---|
| 838 | adminmail = self.config.getAdminMail(printer.Name) |
|---|
| 839 | (mailto, arguments) = self.config.getMailTo(printer.Name) |
|---|
| 840 | action = self.checkGroupPQuota(grouppquota) |
|---|
| 841 | if action.startswith("POLICY_") : |
|---|
| 842 | action = action[7:] |
|---|
| 843 | if action == "DENY" : |
|---|
| 844 | adminmessage = _("Print Quota exceeded for group %s on printer %s") % (group.Name, printer.Name) |
|---|
| 845 | self.printInfo(adminmessage) |
|---|
| 846 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 847 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 848 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 849 | for user in self.storage.getGroupMembers(group) : |
|---|
| 850 | if mailto != "EXTERNAL" : |
|---|
| 851 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Exceeded"), self.config.getHardWarn(printer.Name)) |
|---|
| 852 | else : |
|---|
| 853 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 854 | elif action == "WARN" : |
|---|
| 855 | adminmessage = _("Print Quota low for group %s on printer %s") % (group.Name, printer.Name) |
|---|
| 856 | self.printInfo(adminmessage) |
|---|
| 857 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 858 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 859 | if group.LimitBy and (group.LimitBy.lower() == "balance") : |
|---|
| 860 | message = self.config.getPoorWarn() |
|---|
| 861 | else : |
|---|
| 862 | message = self.config.getSoftWarn(printer.Name) |
|---|
| 863 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 864 | for user in self.storage.getGroupMembers(group) : |
|---|
| 865 | if mailto != "EXTERNAL" : |
|---|
| 866 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Exceeded"), message) |
|---|
| 867 | else : |
|---|
| 868 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 869 | return action |
|---|
| 870 | |
|---|
| 871 | def warnUserPQuota(self, userpquota) : |
|---|
| 872 | """Checks a user quota and send him a message if quota is exceeded on current printer.""" |
|---|
| 873 | user = userpquota.User |
|---|
| 874 | printer = userpquota.Printer |
|---|
| 875 | admin = self.config.getAdmin(printer.Name) |
|---|
| 876 | adminmail = self.config.getAdminMail(printer.Name) |
|---|
| 877 | (mailto, arguments) = self.config.getMailTo(printer.Name) |
|---|
| 878 | action = self.checkUserPQuota(userpquota) |
|---|
| 879 | if action.startswith("POLICY_") : |
|---|
| 880 | action = action[7:] |
|---|
| 881 | if action == "DENY" : |
|---|
| 882 | adminmessage = _("Print Quota exceeded for user %s on printer %s") % (user.Name, printer.Name) |
|---|
| 883 | self.printInfo(adminmessage) |
|---|
| 884 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 885 | message = self.config.getHardWarn(printer.Name) |
|---|
| 886 | if mailto != "EXTERNAL" : |
|---|
| 887 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Exceeded"), message) |
|---|
| 888 | else : |
|---|
| 889 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 890 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 891 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 892 | elif action == "WARN" : |
|---|
| 893 | adminmessage = _("Print Quota low for user %s on printer %s") % (user.Name, printer.Name) |
|---|
| 894 | self.printInfo(adminmessage) |
|---|
| 895 | if mailto in [ "BOTH", "USER", "EXTERNAL" ] : |
|---|
| 896 | if user.LimitBy and (user.LimitBy.lower() == "balance") : |
|---|
| 897 | message = self.config.getPoorWarn() |
|---|
| 898 | else : |
|---|
| 899 | message = self.config.getSoftWarn(printer.Name) |
|---|
| 900 | if mailto != "EXTERNAL" : |
|---|
| 901 | self.sendMessageToUser(admin, adminmail, user, _("Print Quota Low"), message) |
|---|
| 902 | else : |
|---|
| 903 | self.externalMailTo(arguments, action, user, printer, message) |
|---|
| 904 | if mailto in [ "BOTH", "ADMIN" ] : |
|---|
| 905 | self.sendMessageToAdmin(adminmail, _("Print Quota"), adminmessage) |
|---|
| 906 | return action |
|---|
| 907 | |
|---|
| 908 | class PyKotaFilterOrBackend(PyKotaTool) : |
|---|
| 909 | """Class for the PyKota filter or backend.""" |
|---|
| 910 | def __init__(self) : |
|---|
| 911 | """Initialize local datas from current environment.""" |
|---|
| 912 | # We begin with ignoring signals, we may de-ignore them later on. |
|---|
| 913 | self.gotSigTerm = 0 |
|---|
| 914 | signal.signal(signal.SIGTERM, signal.SIG_IGN) |
|---|
| 915 | # signal.signal(signal.SIGCHLD, signal.SIG_IGN) |
|---|
| 916 | signal.signal(signal.SIGPIPE, signal.SIG_IGN) |
|---|
| 917 | |
|---|
| 918 | PyKotaTool.__init__(self) |
|---|
| 919 | (self.printingsystem, \ |
|---|
| 920 | self.printerhostname, \ |
|---|
| 921 | self.printername, \ |
|---|
| 922 | self.username, \ |
|---|
| 923 | self.jobid, \ |
|---|
| 924 | self.inputfile, \ |
|---|
| 925 | self.copies, \ |
|---|
| 926 | self.title, \ |
|---|
| 927 | self.options, \ |
|---|
| 928 | self.originalbackend) = self.extractInfoFromCupsOrLprng() |
|---|
| 929 | |
|---|
| 930 | self.logdebug(_("Printing system %s, args=%s") % (str(self.printingsystem), " ".join(sys.argv))) |
|---|
| 931 | |
|---|
| 932 | self.username = self.username or 'root' # when printing test page from CUPS web interface, username is empty |
|---|
| 933 | if self.config.getUserNameToLower() : |
|---|
| 934 | self.username = self.username.lower() |
|---|
| 935 | self.preserveinputfile = self.inputfile |
|---|
| 936 | try : |
|---|
| 937 | self.accounter = accounter.openAccounter(self) |
|---|
| 938 | except (config.PyKotaConfigError, accounter.PyKotaAccounterError), msg : |
|---|
| 939 | self.crashed(msg) |
|---|
| 940 | raise |
|---|
| 941 | self.exportJobInfo() |
|---|
| 942 | self.jobdatastream = self.openJobDataStream() |
|---|
| 943 | os.environ["PYKOTAJOBSIZEBYTES"] = str(self.jobSizeBytes) |
|---|
| 944 | self.logdebug("Job size is %s bytes" % self.jobSizeBytes) |
|---|
| 945 | self.logdebug("Capturing SIGTERM events.") |
|---|
| 946 | signal.signal(signal.SIGTERM, self.sigterm_handler) |
|---|
| 947 | |
|---|
| 948 | def sendBackChannelData(self, message, level="info") : |
|---|
| 949 | """Sends an informational message to CUPS via back channel stream (stderr).""" |
|---|
| 950 | sys.stderr.write("%s: PyKota (PID %s) : %s\n" % (level.upper(), os.getpid(), message.strip())) |
|---|
| 951 | sys.stderr.flush() |
|---|
| 952 | |
|---|
| 953 | def openJobDataStream(self) : |
|---|
| 954 | """Opens the file which contains the job's datas.""" |
|---|
| 955 | if self.preserveinputfile is None : |
|---|
| 956 | # Job comes from sys.stdin, but this is not |
|---|
| 957 | # seekable and complexifies our task, so create |
|---|
| 958 | # a temporary file and use it instead |
|---|
| 959 | self.logdebug("Duplicating data stream from stdin to temporary file") |
|---|
| 960 | dummy = 0 |
|---|
| 961 | MEGABYTE = 1024*1024 |
|---|
| 962 | self.jobSizeBytes = 0 |
|---|
| 963 | infile = tempfile.TemporaryFile() |
|---|
| 964 | while 1 : |
|---|
| 965 | data = sys.stdin.read(MEGABYTE) |
|---|
| 966 | if not data : |
|---|
| 967 | break |
|---|
| 968 | self.jobSizeBytes += len(data) |
|---|
| 969 | if not (dummy % 10) : |
|---|
| 970 | self.logdebug("%s bytes read..." % self.jobSizeBytes) |
|---|
| 971 | dummy += 1 |
|---|
| 972 | infile.write(data) |
|---|
| 973 | self.logdebug("%s bytes read total." % self.jobSizeBytes) |
|---|
| 974 | infile.flush() |
|---|
| 975 | infile.seek(0) |
|---|
| 976 | return infile |
|---|
| 977 | else : |
|---|
| 978 | # real file, just open it |
|---|
| 979 | self.logdebug("Opening data stream %s" % self.preserveinputfile) |
|---|
| 980 | self.jobSizeBytes = os.stat(self.preserveinputfile)[6] |
|---|
| 981 | return open(self.preserveinputfile, "rb") |
|---|
| 982 | |
|---|
| 983 | def closeJobDataStream(self) : |
|---|
| 984 | """Closes the file which contains the job's datas.""" |
|---|
| 985 | self.logdebug("Closing data stream.") |
|---|
| 986 | try : |
|---|
| 987 | self.jobdatastream.close() |
|---|
| 988 | except : |
|---|
| 989 | pass |
|---|
| 990 | |
|---|
| 991 | def precomputeJobSize(self) : |
|---|
| 992 | """Computes the job size with a software method.""" |
|---|
| 993 | self.logdebug("Precomputing job's size with generic PDL analyzer...") |
|---|
| 994 | self.jobdatastream.seek(0) |
|---|
| 995 | try : |
|---|
| 996 | parser = pdlanalyzer.PDLAnalyzer(self.jobdatastream) |
|---|
| 997 | jobsize = parser.getJobSize() |
|---|
| 998 | except pdlanalyzer.PDLAnalyzerError, msg : |
|---|
| 999 | # Here we just log the failure, but |
|---|
| 1000 | # we finally ignore it and return 0 since this |
|---|
| 1001 | # computation is just an indication of what the |
|---|
| 1002 | # job's size MAY be. |
|---|
| 1003 | self.printInfo(_("Unable to precompute the job's size with the generic PDL analyzer : %s") % msg, "warn") |
|---|
| 1004 | return 0 |
|---|
| 1005 | else : |
|---|
| 1006 | if ((self.printingsystem == "CUPS") \ |
|---|
| 1007 | and (self.preserveinputfile is not None)) \ |
|---|
| 1008 | or (self.printingsystem != "CUPS") : |
|---|
| 1009 | return jobsize * self.copies |
|---|
| 1010 | else : |
|---|
| 1011 | return jobsize |
|---|
| 1012 | |
|---|
| 1013 | def sigterm_handler(self, signum, frame) : |
|---|
| 1014 | """Sets an attribute whenever SIGTERM is received.""" |
|---|
| 1015 | self.gotSigTerm = 1 |
|---|
| 1016 | os.environ["PYKOTASTATUS"] = "CANCELLED" |
|---|
| 1017 | self.printInfo(_("SIGTERM received, job %s cancelled.") % self.jobid) |
|---|
| 1018 | |
|---|
| 1019 | def exportJobInfo(self) : |
|---|
| 1020 | """Exports job information to the environment.""" |
|---|
| 1021 | os.environ["PYKOTAUSERNAME"] = str(self.username) |
|---|
| 1022 | os.environ["PYKOTAPRINTERNAME"] = str(self.printername) |
|---|
| 1023 | os.environ["PYKOTAJOBID"] = str(self.jobid) |
|---|
| 1024 | os.environ["PYKOTATITLE"] = self.title or "" |
|---|
| 1025 | os.environ["PYKOTAFILENAME"] = self.preserveinputfile or "" |
|---|
| 1026 | os.environ["PYKOTACOPIES"] = str(self.copies) |
|---|
| 1027 | os.environ["PYKOTAOPTIONS"] = self.options or "" |
|---|
| 1028 | |
|---|
| 1029 | def exportUserInfo(self, userpquota) : |
|---|
| 1030 | """Exports user information to the environment.""" |
|---|
| 1031 | os.environ["PYKOTALIMITBY"] = str(userpquota.User.LimitBy) |
|---|
| 1032 | os.environ["PYKOTABALANCE"] = str(userpquota.User.AccountBalance or 0.0) |
|---|
| 1033 | os.environ["PYKOTALIFETIMEPAID"] = str(userpquota.User.LifeTimePaid or 0.0) |
|---|
| 1034 | os.environ["PYKOTAPAGECOUNTER"] = str(userpquota.PageCounter or 0) |
|---|
| 1035 | os.environ["PYKOTALIFEPAGECOUNTER"] = str(userpquota.LifePageCounter or 0) |
|---|
| 1036 | os.environ["PYKOTASOFTLIMIT"] = str(userpquota.SoftLimit) |
|---|
| 1037 | os.environ["PYKOTAHARDLIMIT"] = str(userpquota.HardLimit) |
|---|
| 1038 | os.environ["PYKOTADATELIMIT"] = str(userpquota.DateLimit) |
|---|
| 1039 | |
|---|
| 1040 | # not really an user information, but anyway |
|---|
| 1041 | # exports the list of printers groups the current |
|---|
| 1042 | # printer is a member of |
|---|
| 1043 | os.environ["PYKOTAPGROUPS"] = ",".join([p.Name for p in self.storage.getParentPrinters(userpquota.Printer)]) |
|---|
| 1044 | |
|---|
| 1045 | def prehook(self, userpquota) : |
|---|
| 1046 | """Allows plugging of an external hook before the job gets printed.""" |
|---|
| 1047 | prehook = self.config.getPreHook(userpquota.Printer.Name) |
|---|
| 1048 | if prehook : |
|---|
| 1049 | self.logdebug("Executing pre-hook [%s]" % prehook) |
|---|
| 1050 | os.system(prehook) |
|---|
| 1051 | |
|---|
| 1052 | def posthook(self, userpquota) : |
|---|
| 1053 | """Allows plugging of an external hook after the job gets printed and/or denied.""" |
|---|
| 1054 | posthook = self.config.getPostHook(userpquota.Printer.Name) |
|---|
| 1055 | if posthook : |
|---|
| 1056 | self.logdebug("Executing post-hook [%s]" % posthook) |
|---|
| 1057 | os.system(posthook) |
|---|
| 1058 | |
|---|
| 1059 | def printInfo(self, message, level="info") : |
|---|
| 1060 | """Sends a message to standard error.""" |
|---|
| 1061 | self.logger.log_message("%s" % message, level) |
|---|
| 1062 | |
|---|
| 1063 | def extractInfoFromCupsOrLprng(self) : |
|---|
| 1064 | """Returns a tuple (printingsystem, printerhostname, printername, username, jobid, filename, title, options, backend). |
|---|
| 1065 | |
|---|
| 1066 | Returns (None, None, None, None, None, None, None, None, None, None) if no printing system is recognized. |
|---|
| 1067 | """ |
|---|
| 1068 | # Try to detect CUPS |
|---|
| 1069 | if os.environ.has_key("CUPS_SERVERROOT") and os.path.isdir(os.environ.get("CUPS_SERVERROOT", "")) : |
|---|
| 1070 | if len(sys.argv) == 7 : |
|---|
| 1071 | inputfile = sys.argv[6] |
|---|
| 1072 | else : |
|---|
| 1073 | inputfile = None |
|---|
| 1074 | |
|---|
| 1075 | # check that the DEVICE_URI environment variable's value is |
|---|
| 1076 | # prefixed with "cupspykota:" otherwise don't touch it. |
|---|
| 1077 | # If this is the case, we have to remove the prefix from |
|---|
| 1078 | # the environment before launching the real backend in cupspykota |
|---|
| 1079 | device_uri = os.environ.get("DEVICE_URI", "") |
|---|
| 1080 | if device_uri.startswith("cupspykota:") : |
|---|
| 1081 | fulldevice_uri = device_uri[:] |
|---|
| 1082 | device_uri = fulldevice_uri[len("cupspykota:"):] |
|---|
| 1083 | if device_uri.startswith("//") : # lpd (at least) |
|---|
| 1084 | device_uri = device_uri[2:] |
|---|
| 1085 | os.environ["DEVICE_URI"] = device_uri # TODO : side effect ! |
|---|
| 1086 | # TODO : check this for more complex urls than ipp://myprinter.dot.com:631/printers/lp |
|---|
| 1087 | try : |
|---|
| 1088 | (backend, destination) = device_uri.split(":", 1) |
|---|
| 1089 | except ValueError : |
|---|
| 1090 | raise PyKotaToolError, "Invalid DEVICE_URI : %s\n" % device_uri |
|---|
| 1091 | while destination.startswith("/") : |
|---|
| 1092 | destination = destination[1:] |
|---|
| 1093 | checkauth = destination.split("@", 1) |
|---|
| 1094 | if len(checkauth) == 2 : |
|---|
| 1095 | destination = checkauth[1] |
|---|
| 1096 | printerhostname = destination.split("/")[0].split(":")[0] |
|---|
| 1097 | return ("CUPS", \ |
|---|
| 1098 | printerhostname, \ |
|---|
| 1099 | os.environ.get("PRINTER"), \ |
|---|
| 1100 | sys.argv[2].strip(), \ |
|---|
| 1101 | sys.argv[1].strip(), \ |
|---|
| 1102 | inputfile, \ |
|---|
| 1103 | int(sys.argv[4].strip()), \ |
|---|
| 1104 | sys.argv[3], \ |
|---|
| 1105 | sys.argv[5], \ |
|---|
| 1106 | backend) |
|---|
| 1107 | else : |
|---|
| 1108 | # Try to detect LPRng |
|---|
| 1109 | # TODO : try to extract filename, options if available |
|---|
| 1110 | jseen = Jseen = Pseen = nseen = rseen = Kseen = None |
|---|
| 1111 | for arg in sys.argv : |
|---|
| 1112 | if arg.startswith("-j") : |
|---|
| 1113 | jseen = arg[2:].strip() |
|---|
| 1114 | elif arg.startswith("-n") : |
|---|
| 1115 | nseen = arg[2:].strip() |
|---|
| 1116 | elif arg.startswith("-P") : |
|---|
| 1117 | Pseen = arg[2:].strip() |
|---|
| 1118 | elif arg.startswith("-r") : |
|---|
| 1119 | rseen = arg[2:].strip() |
|---|
| 1120 | elif arg.startswith("-J") : |
|---|
| 1121 | Jseen = arg[2:].strip() |
|---|
| 1122 | elif arg.startswith("-K") or arg.startswith("-#") : |
|---|
| 1123 | Kseen = int(arg[2:].strip()) |
|---|
| 1124 | if Kseen is None : |
|---|
| 1125 | Kseen = 1 # we assume the user wants at least one copy... |
|---|
| 1126 | if (rseen is None) and jseen and Pseen and nseen : |
|---|
| 1127 | self.printInfo(_("Printer hostname undefined, set to 'localhost'"), "warn") |
|---|
| 1128 | rseen = "localhost" |
|---|
| 1129 | try : |
|---|
| 1130 | df_name = [line[8:] for line in os.environ.get("HF", "").split() if line.startswith("df_name=")][0] |
|---|
| 1131 | except IndexError : |
|---|
| 1132 | try : |
|---|
| 1133 | cftransfername = [line[15:] for line in os.environ.get("HF", "").split() if line.startswith("cftransfername=")][0] |
|---|
| 1134 | except IndexError : |
|---|
| 1135 | inputfile = None |
|---|
| 1136 | else : |
|---|
| 1137 | inputfile = os.path.join(os.environ.get("SPOOL_DIR", "."), "d" + cftransfername[1:]) |
|---|
| 1138 | else : |
|---|
| 1139 | inputfile = os.path.join(os.environ.get("SPOOL_DIR", "."), df_name) |
|---|
| 1140 | if jseen and Pseen and nseen and rseen : |
|---|
| 1141 | options = os.environ.get("HF", "") |
|---|
| 1142 | return ("LPRNG", rseen, Pseen, nseen, jseen, inputfile, Kseen, Jseen, options, None) |
|---|
| 1143 | self.printInfo(_("Printing system unknown, args=%s") % " ".join(sys.argv), "warn") |
|---|
| 1144 | return (None, None, None, None, None, None, None, None, None, None) # Unknown printing system |
|---|
| 1145 | |
|---|
| 1146 | def getPrinterUserAndUserPQuota(self) : |
|---|
| 1147 | """Returns a tuple (policy, printer, user, and user print quota) on this printer. |
|---|
| 1148 | |
|---|
| 1149 | "OK" is returned in the policy if both printer, user and user print quota |
|---|
| 1150 | exist in the Quota Storage. |
|---|
| 1151 | Otherwise, the policy as defined for this printer in pykota.conf is returned. |
|---|
| 1152 | |
|---|
| 1153 | If policy was set to "EXTERNAL" and one of printer, user, or user print quota |
|---|
| 1154 | doesn't exist in the Quota Storage, then an external command is launched, as |
|---|
| 1155 | defined in the external policy for this printer in pykota.conf |
|---|
| 1156 | This external command can do anything, like automatically adding printers |
|---|
| 1157 | or users, for example, and finally extracting printer, user and user print |
|---|
| 1158 | quota from the Quota Storage is tried a second time. |
|---|
| 1159 | |
|---|
| 1160 | "EXTERNALERROR" is returned in case policy was "EXTERNAL" and an error status |
|---|
| 1161 | was returned by the external command. |
|---|
| 1162 | """ |
|---|
| 1163 | for passnumber in range(1, 3) : |
|---|
| 1164 | printer = self.storage.getPrinter(self.printername) |
|---|
| 1165 | user = self.storage.getUser(self.username) |
|---|
| 1166 | userpquota = self.storage.getUserPQuota(user, printer) |
|---|
| 1167 | if printer.Exists and user.Exists and userpquota.Exists : |
|---|
| 1168 | policy = "OK" |
|---|
| 1169 | break |
|---|
| 1170 | (policy, args) = self.config.getPrinterPolicy(self.printername) |
|---|
| 1171 | if policy == "EXTERNAL" : |
|---|
| 1172 | commandline = self.formatCommandLine(args, user, printer) |
|---|
| 1173 | if not printer.Exists : |
|---|
| 1174 | self.printInfo(_("Printer %s not registered in the PyKota system, applying external policy (%s) for printer %s") % (self.printername, commandline, self.printername)) |
|---|
| 1175 | if not user.Exists : |
|---|
| 1176 | self.printInfo(_("User %s not registered in the PyKota system, applying external policy (%s) for printer %s") % (self.username, commandline, self.printername)) |
|---|
| 1177 | if not userpquota.Exists : |
|---|
| 1178 | self.printInfo(_("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)) |
|---|
| 1179 | if os.system(commandline) : |
|---|
| 1180 | self.printInfo(_("External policy %s for printer %s produced an error. Job rejected. Please check PyKota's configuration files.") % (commandline, self.printername), "error") |
|---|
| 1181 | policy = "EXTERNALERROR" |
|---|
| 1182 | break |
|---|
| 1183 | else : |
|---|
| 1184 | if not printer.Exists : |
|---|
| 1185 | self.printInfo(_("Printer %s not registered in the PyKota system, applying default policy (%s)") % (self.printername, policy)) |
|---|
| 1186 | if not user.Exists : |
|---|
| 1187 | self.printInfo(_("User %s not registered in the PyKota system, applying default policy (%s) for printer %s") % (self.username, policy, self.printername)) |
|---|
| 1188 | if not userpquota.Exists : |
|---|
| 1189 | self.printInfo(_("User %s doesn't have quota on printer %s in the PyKota system, applying default policy (%s)") % (self.username, self.printername, policy)) |
|---|
| 1190 | break |
|---|
| 1191 | if policy == "EXTERNAL" : |
|---|
| 1192 | if not printer.Exists : |
|---|
| 1193 | self.printInfo(_("Printer %s still not registered in the PyKota system, job will be rejected") % self.printername) |
|---|
| 1194 | if not user.Exists : |
|---|
| 1195 | self.printInfo(_("User %s still not registered in the PyKota system, job will be rejected on printer %s") % (self.username, self.printername)) |
|---|
| 1196 | if not userpquota.Exists : |
|---|
| 1197 | self.printInfo(_("User %s still doesn't have quota on printer %s in the PyKota system, job will be rejected") % (self.username, self.printername)) |
|---|
| 1198 | return (policy, printer, user, userpquota) |
|---|
| 1199 | |
|---|
| 1200 | def mainWork(self) : |
|---|
| 1201 | """Main work is done here.""" |
|---|
| 1202 | (policy, printer, user, userpquota) = self.getPrinterUserAndUserPQuota() |
|---|
| 1203 | # TODO : check for last user's quota in case pykota filter is used with querying |
|---|
| 1204 | if policy == "EXTERNALERROR" : |
|---|
| 1205 | # Policy was 'EXTERNAL' and the external command returned an error code |
|---|
| 1206 | return self.removeJob() |
|---|
| 1207 | elif policy == "EXTERNAL" : |
|---|
| 1208 | # Policy was 'EXTERNAL' and the external command wasn't able |
|---|
| 1209 | # to add either the printer, user or user print quota |
|---|
| 1210 | return self.removeJob() |
|---|
| 1211 | elif policy == "DENY" : |
|---|
| 1212 | # Either printer, user or user print quota doesn't exist, |
|---|
| 1213 | # and the job should be rejected. |
|---|
| 1214 | return self.removeJob() |
|---|
| 1215 | else : |
|---|
| 1216 | if policy not in ("OK", "ALLOW") : |
|---|
| 1217 | self.printInfo(_("Invalid policy %s for printer %s") % (policy, self.printername)) |
|---|
| 1218 | return self.removeJob() |
|---|
| 1219 | else : |
|---|
| 1220 | return self.doWork(policy, printer, user, userpquota) |
|---|
