[1021] | 1 | # PyKota |
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| 2 | # |
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| 3 | # PyKota : Print Quotas for CUPS and LPRng |
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| 4 | # |
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| 5 | # (c) 2003 Jerome Alet <alet@librelogiciel.com> |
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| 6 | # This program is free software; you can redistribute it and/or modify |
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| 7 | # it under the terms of the GNU General Public License as published by |
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| 8 | # the Free Software Foundation; either version 2 of the License, or |
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| 9 | # (at your option) any later version. |
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| 10 | # |
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| 11 | # This program is distributed in the hope that it will be useful, |
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| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | # GNU General Public License for more details. |
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| 15 | # |
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| 16 | # You should have received a copy of the GNU General Public License |
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| 17 | # along with this program; if not, write to the Free Software |
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| 18 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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| 19 | # |
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| 20 | # $Id$ |
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| 21 | # |
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| 22 | # $Log$ |
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| 23 | # Revision 1.1 2003/06/10 16:37:54 jalet |
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| 24 | # Deletion of the second user which is not needed anymore. |
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| 25 | # Added a debug configuration field in /etc/pykota.conf |
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| 26 | # All queries can now be sent to the logger in debug mode, this will |
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| 27 | # greatly help improve performance when time for this will come. |
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| 28 | # |
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| 29 | # |
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| 30 | # |
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| 31 | # |
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| 32 | |
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| 33 | import fnmatch |
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| 34 | |
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| 35 | from pykota.storage import PyKotaStorageError |
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| 36 | |
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| 37 | try : |
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| 38 | import pg |
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| 39 | except ImportError : |
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| 40 | import sys |
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| 41 | # TODO : to translate or not to translate ? |
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| 42 | raise PyKotaStorageError, "This python version (%s) doesn't seem to have the PygreSQL module installed correctly." % sys.version.split()[0] |
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| 43 | |
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| 44 | class Storage : |
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| 45 | def __init__(self, pykotatool, host, dbname, user, passwd) : |
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| 46 | """Opens the PostgreSQL database connection.""" |
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| 47 | self.tool = pykotatool |
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| 48 | self.debug = pykotatool.config.getDebug() |
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| 49 | self.closed = 1 |
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| 50 | try : |
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| 51 | (host, port) = host.split(":") |
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| 52 | port = int(port) |
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| 53 | except ValueError : |
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| 54 | port = -1 # Use PostgreSQL's default tcp/ip port (5432). |
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| 55 | |
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| 56 | try : |
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| 57 | self.database = pg.connect(host=host, port=port, dbname=dbname, user=user, passwd=passwd) |
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| 58 | self.closed = 0 |
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| 59 | except pg.error, msg : |
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| 60 | raise PyKotaStorageError, msg |
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| 61 | else : |
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| 62 | if self.debug : |
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| 63 | self.tool.logger.log_message("Database opened (host=%s, port=%s, dbname=%s, user=%s)" % (host, port, dbname, user), "debug") |
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| 64 | |
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| 65 | def __del__(self) : |
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| 66 | """Closes the database connection.""" |
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| 67 | if not self.closed : |
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| 68 | self.database.close() |
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| 69 | self.closed = 1 |
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| 70 | if self.debug : |
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| 71 | self.tool.logger.log_message("Database closed.", "debug") |
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| 72 | |
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| 73 | def doQuery(self, query) : |
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| 74 | """Does a query.""" |
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| 75 | if type(query) in (type([]), type(())) : |
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| 76 | query = ";".join(query) |
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| 77 | query = query.strip() |
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| 78 | if not query.endswith(';') : |
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| 79 | query += ';' |
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| 80 | self.database.query("BEGIN;") |
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| 81 | if self.debug : |
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| 82 | self.tool.logger.log_message("Transaction began.", "debug") |
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| 83 | try : |
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| 84 | if self.debug : |
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| 85 | self.tool.logger.log_message("QUERY : %s" % query, "debug") |
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| 86 | result = self.database.query(query) |
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| 87 | except pg.error, msg : |
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| 88 | self.database.query("ROLLBACK;") |
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| 89 | if self.debug : |
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| 90 | self.tool.logger.log_message("Transaction aborted.", "debug") |
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| 91 | raise PyKotaStorageError, msg |
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| 92 | else : |
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| 93 | self.database.query("COMMIT;") |
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| 94 | if self.debug : |
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| 95 | self.tool.logger.log_message("Transaction committed.", "debug") |
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| 96 | return result |
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| 97 | |
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| 98 | def doQuote(self, field) : |
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| 99 | """Quotes a field for use as a string in SQL queries.""" |
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| 100 | if type(field) == type(0.0) : |
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| 101 | typ = "decimal" |
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| 102 | elif type(field) == type(0) : |
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| 103 | typ = "int" |
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| 104 | else : |
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| 105 | typ = "text" |
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| 106 | return pg._quote(field, typ) |
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| 107 | |
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| 108 | def doParseResult(self, result) : |
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| 109 | """Returns the result as a list of Python mappings.""" |
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| 110 | if (result is not None) and (result.ntuples() > 0) : |
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| 111 | return result.dictresult() |
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| 112 | |
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| 113 | def getMatchingPrinters(self, printerpattern) : |
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| 114 | """Returns the list of all printers as tuples (id, name) for printer names which match a certain pattern.""" |
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| 115 | printerslist = [] |
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| 116 | # We 'could' do a SELECT printername FROM printers WHERE printername LIKE ... |
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| 117 | # but we don't because other storages semantics may be different, so every |
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| 118 | # storage should use fnmatch to match patterns and be storage agnostic |
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| 119 | result = self.doQuery("SELECT id, printername FROM printers") |
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| 120 | result = self.doParseResult(result) |
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| 121 | if result is not None : |
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| 122 | for printer in result : |
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| 123 | if fnmatch.fnmatchcase(printer["printername"], printerpattern) : |
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| 124 | printerslist.append((printer["id"], printer["printername"])) |
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| 125 | return printerslist |
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| 126 | |
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| 127 | def getPrinterId(self, printername) : |
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| 128 | """Returns a printerid given a printername.""" |
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| 129 | result = self.doQuery("SELECT id FROM printers WHERE printername=%s" % self.doQuote(printername)) |
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| 130 | try : |
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| 131 | return self.doParseResult(result)[0]["id"] |
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| 132 | except TypeError : # Not found |
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| 133 | return |
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| 134 | |
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| 135 | def getPrinterPrices(self, printerid) : |
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| 136 | """Returns a printer prices per page and per job given a printerid.""" |
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| 137 | result = self.doQuery("SELECT priceperpage, priceperjob FROM printers WHERE id=%s" % self.doQuote(printerid)) |
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| 138 | try : |
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| 139 | printerprices = self.doParseResult(result)[0] |
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| 140 | return (printerprices["priceperpage"], printerprices["priceperjob"]) |
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| 141 | except TypeError : # Not found |
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| 142 | return |
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| 143 | |
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| 144 | def setPrinterPrices(self, printerid, perpage, perjob) : |
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| 145 | """Sets prices per job and per page for a given printer.""" |
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| 146 | self.doQuery("UPDATE printers SET priceperpage=%s, priceperjob=%s WHERE id=%s" % (self.doQuote(perpage), self.doQuote(perjob), self.doQuote(printerid))) |
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| 147 | |
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| 148 | def getUserId(self, username) : |
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| 149 | """Returns a userid given a username.""" |
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| 150 | result = self.doQuery("SELECT id FROM users WHERE username=%s" % self.doQuote(username)) |
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| 151 | try : |
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| 152 | return self.doParseResult(result)[0]["id"] |
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| 153 | except TypeError : # Not found |
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| 154 | return |
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| 155 | |
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| 156 | def getGroupId(self, groupname) : |
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| 157 | """Returns a groupid given a grupname.""" |
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| 158 | result = self.doQuery("SELECT id FROM groups WHERE groupname=%s" % self.doQuote(groupname)) |
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| 159 | try : |
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| 160 | return self.doParseResult(result)[0]["id"] |
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| 161 | except TypeError : # Not found |
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| 162 | return |
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| 163 | |
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| 164 | def getJobHistoryId(self, jobid, userid, printerid) : |
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| 165 | """Returns the history line's id given a (jobid, userid, printerid).""" |
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| 166 | result = self.doQuery("SELECT id FROM jobhistory WHERE jobid=%s AND userid=%s AND printerid=%s" % (self.doQuote(jobid), self.doQuote(userid), self.doQuote(printerid))) |
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| 167 | try : |
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| 168 | return self.doParseResult(result)[0]["id"] |
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| 169 | except TypeError : # Not found |
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| 170 | return |
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| 171 | |
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| 172 | def getPrinterUsers(self, printerid) : |
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| 173 | """Returns the list of userids and usernames which uses a given printer.""" |
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| 174 | result = self.doQuery("SELECT DISTINCT id, username FROM users WHERE id IN (SELECT userid FROM userpquota WHERE printerid=%s) ORDER BY username" % self.doQuote(printerid)) |
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| 175 | result = self.doParseResult(result) |
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| 176 | if result is None : |
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| 177 | return [] |
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| 178 | else : |
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| 179 | return [(record["id"], record["username"]) for record in result] |
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| 180 | |
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| 181 | def getPrinterGroups(self, printerid) : |
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| 182 | """Returns the list of groups which uses a given printer.""" |
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| 183 | result = self.doQuery("SELECT DISTINCT id, groupname FROM groups WHERE id IN (SELECT groupid FROM grouppquota WHERE printerid=%s)" % self.doQuote(printerid)) |
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| 184 | result = self.doParseResult(result) |
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| 185 | if result is None : |
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| 186 | return [] |
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| 187 | else : |
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| 188 | return [(record["id"], record["groupname"]) for record in result] |
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| 189 | |
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| 190 | def getGroupMembersNames(self, groupname) : |
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| 191 | """Returns the list of user's names which are member of this group.""" |
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| 192 | groupid = self.getGroupId(groupname) |
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| 193 | if groupid is None : |
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| 194 | return [] |
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| 195 | else : |
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| 196 | result = self.doQuery("SELECT DISTINCT username FROM users WHERE id IN (SELECT userid FROM groupsmembers WHERE groupid=%s)" % self.doQuote(groupid)) |
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| 197 | return [record["username"] for record in (self.doParseResult(result) or [])] |
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| 198 | |
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| 199 | def getUserGroupsNames(self, userid) : |
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| 200 | """Returns the list of groups' names the user is a member of.""" |
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| 201 | result = self.doQuery("SELECT DISTINCT groupname FROM groups WHERE id IN (SELECT groupid FROM groupsmembers WHERE userid=%s)" % self.doQuote(userid)) |
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| 202 | return [record["groupname"] for record in (self.doParseResult(result) or [])] |
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| 203 | |
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| 204 | def addPrinter(self, printername) : |
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| 205 | """Adds a printer to the quota storage, returns its id.""" |
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| 206 | self.doQuery("INSERT INTO printers (printername) VALUES (%s)" % self.doQuote(printername)) |
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| 207 | return self.getPrinterId(printername) |
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| 208 | |
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| 209 | def addUser(self, username) : |
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| 210 | """Adds a user to the quota storage, returns its id.""" |
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| 211 | self.doQuery("INSERT INTO users (username) VALUES (%s)" % self.doQuote(username)) |
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| 212 | return self.getUserId(username) |
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| 213 | |
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| 214 | def addGroup(self, groupname) : |
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| 215 | """Adds a group to the quota storage, returns its id.""" |
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| 216 | self.doQuery("INSERT INTO groups (groupname) VALUES (%s)" % self.doQuote(groupname)) |
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| 217 | return self.getGroupId(groupname) |
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| 218 | |
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| 219 | def addUserPQuota(self, username, printerid) : |
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| 220 | """Initializes a user print quota on a printer, adds the user to the quota storage if needed.""" |
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| 221 | userid = self.getUserId(username) |
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| 222 | if userid is None : |
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| 223 | userid = self.addUser(username) |
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| 224 | uqexists = (self.getUserPQuota(userid, printerid) is not None) |
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| 225 | if not uqexists : |
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| 226 | self.doQuery("INSERT INTO userpquota (userid, printerid) VALUES (%s, %s)" % (self.doQuote(userid), self.doQuote(printerid))) |
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| 227 | return (userid, printerid) |
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| 228 | |
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| 229 | def addGroupPQuota(self, groupname, printerid) : |
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| 230 | """Initializes a group print quota on a printer, adds the group to the quota storage if needed.""" |
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| 231 | groupid = self.getGroupId(groupname) |
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| 232 | if groupid is None : |
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| 233 | groupid = self.addGroup(groupname) |
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| 234 | gqexists = (self.getGroupPQuota(groupid, printerid) is not None) |
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| 235 | if not gqexists : |
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| 236 | self.doQuery("INSERT INTO grouppquota (groupid, printerid) VALUES (%s, %s)" % (self.doQuote(groupid), self.doQuote(printerid))) |
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| 237 | return (groupid, printerid) |
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| 238 | |
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| 239 | def increaseUserBalance(self, userid, amount) : |
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| 240 | """Increases (or decreases) an user's account balance by a given amount.""" |
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| 241 | self.doQuery("UPDATE users SET balance=balance+(%s), lifetimepaid=lifetimepaid+(%s) WHERE id=%s" % (self.doQuote(amount), self.doQuote(amount), self.doQuote(userid))) |
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| 242 | |
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| 243 | def getUserBalance(self, userid) : |
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| 244 | """Returns the current account balance for a given user.""" |
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| 245 | result = self.doQuery("SELECT balance, lifetimepaid FROM users WHERE id=%s" % self.doQuote(userid)) |
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| 246 | try : |
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| 247 | result = self.doParseResult(result)[0] |
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| 248 | except TypeError : # Not found |
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| 249 | return |
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| 250 | else : |
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| 251 | return (result["balance"], result["lifetimepaid"]) |
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| 252 | |
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| 253 | def getGroupBalance(self, groupid) : |
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| 254 | """Returns the current account balance for a given group, as the sum of each of its users' account balance.""" |
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| 255 | result = self.doQuery("SELECT SUM(balance) AS balance, SUM(lifetimepaid) AS lifetimepaid FROM users WHERE id in (SELECT userid FROM groupsmembers WHERE groupid=%s)" % self.doQuote(groupid)) |
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| 256 | try : |
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| 257 | result = self.doParseResult(result)[0] |
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| 258 | except TypeError : # Not found |
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| 259 | return |
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| 260 | else : |
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| 261 | return (result["balance"], result["lifetimepaid"]) |
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| 262 | |
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| 263 | def getUserLimitBy(self, userid) : |
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| 264 | """Returns the way in which user printing is limited.""" |
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| 265 | result = self.doQuery("SELECT limitby FROM users WHERE id=%s" % self.doQuote(userid)) |
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| 266 | try : |
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| 267 | return self.doParseResult(result)[0]["limitby"] |
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| 268 | except TypeError : # Not found |
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| 269 | return |
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| 270 | |
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| 271 | def getGroupLimitBy(self, groupid) : |
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| 272 | """Returns the way in which group printing is limited.""" |
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| 273 | result = self.doQuery("SELECT limitby FROM groups WHERE id=%s" % self.doQuote(groupid)) |
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| 274 | try : |
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| 275 | return self.doParseResult(result)[0]["limitby"] |
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| 276 | except TypeError : # Not found |
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| 277 | return |
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| 278 | |
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| 279 | def setUserBalance(self, userid, balance) : |
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| 280 | """Sets the account balance for a given user to a fixed value.""" |
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| 281 | (current, lifetimepaid) = self.getUserBalance(userid) |
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| 282 | difference = balance - current |
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| 283 | self.increaseUserBalance(userid, difference) |
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| 284 | |
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| 285 | def limitUserBy(self, userid, limitby) : |
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| 286 | """Limits a given user based either on print quota or on account balance.""" |
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| 287 | self.doQuery("UPDATE users SET limitby=%s WHERE id=%s" % (self.doQuote(limitby), self.doQuote(userid))) |
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| 288 | |
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| 289 | def limitGroupBy(self, groupid, limitby) : |
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| 290 | """Limits a given group based either on print quota or on sum of its users' account balances.""" |
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| 291 | self.doQuery("UPDATE groups SET limitby=%s WHERE id=%s" % (self.doQuote(limitby), self.doQuote(groupid))) |
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| 292 | |
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| 293 | def setUserPQuota(self, userid, printerid, softlimit, hardlimit) : |
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| 294 | """Sets soft and hard limits for a user quota on a specific printer given (userid, printerid).""" |
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| 295 | self.doQuery("UPDATE userpquota SET softlimit=%s, hardlimit=%s, datelimit=NULL WHERE userid=%s AND printerid=%s" % (self.doQuote(softlimit), self.doQuote(hardlimit), self.doQuote(userid), self.doQuote(printerid))) |
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| 296 | |
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| 297 | def setGroupPQuota(self, groupid, printerid, softlimit, hardlimit) : |
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| 298 | """Sets soft and hard limits for a group quota on a specific printer given (groupid, printerid).""" |
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| 299 | self.doQuery("UPDATE grouppquota SET softlimit=%s, hardlimit=%s, datelimit=NULL WHERE groupid=%s AND printerid=%s" % (self.doQuote(softlimit), self.doQuote(hardlimit), self.doQuote(groupid), self.doQuote(printerid))) |
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| 300 | |
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| 301 | def resetUserPQuota(self, userid, printerid) : |
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| 302 | """Resets the page counter to zero for a user on a printer. Life time page counter is kept unchanged.""" |
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| 303 | self.doQuery("UPDATE userpquota SET pagecounter=0, datelimit=NULL WHERE userid=%s AND printerid=%s" % (self.doQuote(userid), self.doQuote(printerid))) |
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| 304 | |
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| 305 | def resetGroupPQuota(self, groupid, printerid) : |
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| 306 | """Resets the page counter to zero for a group on a printer. Life time page counter is kept unchanged.""" |
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| 307 | self.doQuery("UPDATE grouppquota SET pagecounter=0, datelimit=NULL WHERE groupid=%s AND printerid=%s" % (self.doQuote(groupid), self.doQuote(printerid))) |
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| 308 | |
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| 309 | def updateUserPQuota(self, userid, printerid, pagecount) : |
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| 310 | """Updates the used user Quota information given (userid, printerid) and a job size in pages.""" |
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| 311 | jobprice = self.computePrinterJobPrice(printerid, pagecount) |
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| 312 | queries = [] |
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| 313 | queries.append("UPDATE userpquota SET lifepagecounter=lifepagecounter+(%s), pagecounter=pagecounter+(%s) WHERE userid=%s AND printerid=%s" % (self.doQuote(pagecount), self.doQuote(pagecount), self.doQuote(userid), self.doQuote(printerid))) |
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| 314 | queries.append("UPDATE users SET balance=balance-(%s) WHERE id=%s" % (self.doQuote(jobprice), self.doQuote(userid))) |
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| 315 | self.doQuery(queries) |
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| 316 | |
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| 317 | def getUserPQuota(self, userid, printerid) : |
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| 318 | """Returns the Print Quota information for a given (userid, printerid).""" |
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| 319 | result = self.doQuery("SELECT lifepagecounter, pagecounter, softlimit, hardlimit, datelimit FROM userpquota WHERE userid=%s AND printerid=%s" % (self.doQuote(userid), self.doQuote(printerid))) |
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| 320 | try : |
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| 321 | return self.doParseResult(result)[0] |
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| 322 | except TypeError : # Not found |
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| 323 | return |
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| 324 | |
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| 325 | def getGroupPQuota(self, groupid, printerid) : |
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| 326 | """Returns the Print Quota information for a given (groupid, printerid).""" |
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| 327 | result = self.doQuery("SELECT softlimit, hardlimit, datelimit FROM grouppquota WHERE groupid=%s AND printerid=%s" % (self.doQuote(groupid), self.doQuote(printerid))) |
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| 328 | try : |
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| 329 | grouppquota = self.doParseResult(result)[0] |
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| 330 | except TypeError : |
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| 331 | return |
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| 332 | else : |
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| 333 | result = self.doQuery("SELECT SUM(lifepagecounter) as lifepagecounter, SUM(pagecounter) as pagecounter FROM userpquota WHERE printerid=%s AND userid in (SELECT userid FROM groupsmembers WHERE groupid=%s)" % (self.doQuote(printerid), self.doQuote(groupid))) |
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| 334 | try : |
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| 335 | result = self.doParseResult(result)[0] |
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| 336 | except TypeError : # Not found |
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| 337 | return |
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| 338 | else : |
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| 339 | grouppquota.update({"lifepagecounter": result["lifepagecounter"], "pagecounter": result["pagecounter"]}) |
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| 340 | return grouppquota |
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| 341 | |
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| 342 | def setUserDateLimit(self, userid, printerid, datelimit) : |
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| 343 | """Sets the limit date for a soft limit to become an hard one given (userid, printerid).""" |
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| 344 | self.doQuery("UPDATE userpquota SET datelimit=%s::TIMESTAMP WHERE userid=%s AND printerid=%s" % (self.doQuote("%04i-%02i-%02i %02i:%02i:%02i" % (datelimit.year, datelimit.month, datelimit.day, datelimit.hour, datelimit.minute, datelimit.second)), self.doQuote(userid), self.doQuote(printerid))) |
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| 345 | |
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| 346 | def setGroupDateLimit(self, groupid, printerid, datelimit) : |
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| 347 | """Sets the limit date for a soft limit to become an hard one given (groupid, printerid).""" |
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| 348 | self.doQuery("UPDATE grouppquota SET datelimit=%s::TIMESTAMP WHERE groupid=%s AND printerid=%s" % (self.doQuote("%04i-%02i-%02i %02i:%02i:%02i" % (datelimit.year, datelimit.month, datelimit.day, datelimit.hour, datelimit.minute, datelimit.second)), self.doQuote(groupid), self.doQuote(printerid))) |
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| 349 | |
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| 350 | def addJobToHistory(self, jobid, userid, printerid, pagecounter, action, jobsize=None) : |
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| 351 | """Adds a job to the history: (jobid, userid, printerid, last page counter taken from requester).""" |
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| 352 | self.doQuery("INSERT INTO jobhistory (jobid, userid, printerid, pagecounter, action, jobsize) VALUES (%s, %s, %s, %s, %s, %s)" % (self.doQuote(jobid), self.doQuote(userid), self.doQuote(printerid), self.doQuote(pagecounter), self.doQuote(action), self.doQuote(jobsize))) |
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| 353 | return self.getJobHistoryId(jobid, userid, printerid) # in case jobid is not sufficient |
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| 354 | |
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| 355 | def updateJobSizeInHistory(self, historyid, jobsize) : |
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| 356 | """Updates a job size in the history given the history line's id.""" |
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| 357 | self.doQuery("UPDATE jobhistory SET jobsize=%s WHERE id=%s" % (self.doQuote(jobsize), self.doQuote(historyid))) |
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| 358 | |
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| 359 | def getPrinterPageCounter(self, printerid) : |
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| 360 | """Returns the last page counter value for a printer given its id, also returns last username, last jobid and history line id.""" |
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| 361 | result = self.doQuery("SELECT jobhistory.id, jobid, userid, username, pagecounter, jobsize FROM jobhistory, users WHERE printerid=%s AND userid=users.id ORDER BY jobdate DESC LIMIT 1" % self.doQuote(printerid)) |
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| 362 | try : |
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| 363 | return self.doParseResult(result)[0] |
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| 364 | except TypeError : # Not found |
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| 365 | return |
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| 366 | |
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| 367 | def addUserToGroup(self, userid, groupid) : |
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| 368 | """Adds an user to a group.""" |
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| 369 | result = self.doQuery("SELECT COUNT(*) AS mexists FROM groupsmembers WHERE groupid=%s AND userid=%s" % (self.doQuote(groupid), self.doQuote(userid))) |
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| 370 | try : |
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| 371 | mexists = self.doParseResult(result)[0]["mexists"] |
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| 372 | except TypeError : |
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| 373 | mexists = 0 |
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| 374 | if not mexists : |
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| 375 | self.doQuery("INSERT INTO groupsmembers (groupid, userid) VALUES (%s, %s)" % (self.doQuote(groupid), self.doQuote(userid))) |
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| 376 | |
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| 377 | def deleteUser(self, userid) : |
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| 378 | """Completely deletes an user from the Quota Storage.""" |
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| 379 | queries = [] |
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| 380 | queries.append("DELETE FROM groupsmembers WHERE userid=%s" % self.doQuote(userid)) |
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| 381 | queries.append("DELETE FROM jobhistory WHERE userid=%s" % self.doQuote(userid)) |
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| 382 | queries.append("DELETE FROM userpquota WHERE userid=%s" % self.doQuote(userid)) |
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| 383 | queries.append("DELETE FROM users WHERE id=%s" % self.doQuote(userid)) |
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| 384 | # TODO : What should we do if we delete the last person who used a given printer ? |
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| 385 | self.doQuery(queries) |
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| 386 | |
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| 387 | def deleteGroup(self, groupid) : |
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| 388 | """Completely deletes an user from the Quota Storage.""" |
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| 389 | queries = [] |
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| 390 | queries.append("DELETE FROM groupsmembers WHERE groupid=%s" % self.doQuote(groupid)) |
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| 391 | queries.append("DELETE FROM grouppquota WHERE groupid=%s" % self.doQuote(groupid)) |
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| 392 | queries.append("DELETE FROM groups WHERE id=%s" % self.doQuote(groupid)) |
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| 393 | self.doQuery(queries) |
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| 394 | |
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| 395 | def computePrinterJobPrice(self, printerid, jobsize) : |
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| 396 | """Returns the price for a job on a given printer.""" |
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| 397 | # TODO : create a base class with things like this |
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| 398 | prices = self.getPrinterPrices(printerid) |
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| 399 | if prices is None : |
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| 400 | perpage = perjob = 0.0 |
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| 401 | else : |
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| 402 | (perpage, perjob) = prices |
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| 403 | return perjob + (perpage * jobsize) |
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| 404 | |
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