| 1 | # PyKota |
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| 2 | # |
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| 3 | # PyKota : Print Quotas for CUPS |
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| 4 | # |
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| 5 | # (c) 2003 Jerome Alet <alet@librelogiciel.com> |
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| 6 | # You're welcome to redistribute this software under the |
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| 7 | # terms of the GNU General Public Licence version 2.0 |
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| 8 | # or, at your option, any higher version. |
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| 9 | # |
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| 10 | # You can read the complete GNU GPL in the file COPYING |
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| 11 | # which should come along with this software, or visit |
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| 12 | # the Free Software Foundation's WEB site http://www.fsf.org |
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| 13 | # |
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| 14 | # $Id$ |
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| 15 | # |
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| 16 | # $Log$ |
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| 17 | # Revision 1.7 2003/02/06 14:28:59 jalet |
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| 18 | # edpykota should be ok, minus some typos |
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| 19 | # |
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| 20 | # Revision 1.6 2003/02/06 09:19:02 jalet |
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| 21 | # More robust behavior (hopefully) when the user or printer is not managed |
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| 22 | # correctly by the Quota System : e.g. cupsFilter added in ppd file, but |
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| 23 | # printer and/or user not 'yet?' in storage. |
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| 24 | # |
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| 25 | # Revision 1.5 2003/02/05 23:26:22 jalet |
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| 26 | # Incorrect handling of grace delay |
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| 27 | # |
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| 28 | # Revision 1.4 2003/02/05 23:02:10 jalet |
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| 29 | # Typo |
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| 30 | # |
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| 31 | # Revision 1.3 2003/02/05 23:00:12 jalet |
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| 32 | # Forgotten import |
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| 33 | # Bad datetime conversion |
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| 34 | # |
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| 35 | # Revision 1.2 2003/02/05 22:28:38 jalet |
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| 36 | # More robust storage |
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| 37 | # |
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| 38 | # Revision 1.1 2003/02/05 21:28:17 jalet |
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| 39 | # Initial import into CVS |
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| 40 | # |
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| 41 | # |
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| 42 | # |
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| 43 | |
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| 44 | class SQLStorage : |
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| 45 | def getMatchingPrinters(self, printerpattern) : |
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| 46 | """Returns the list of all printer names which match a certain pattern.""" |
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| 47 | printerslist = [] |
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| 48 | # We 'could' do a SELECT printername FROM printers WHERE printername LIKE ... |
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| 49 | # but we don't because other storages semantics may be different, so every |
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| 50 | # storage should use fnmatch to match patterns and be storage agnostic |
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| 51 | result = self.doQuery("SELECT printername FROM printers;") |
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| 52 | result = self.doParseResult() |
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| 53 | if result is not None : |
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| 54 | for printer in result : |
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| 55 | if fnmatch.fnmatchcase(printer["printername"], printerpattern) : |
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| 56 | printerslist.append(printer["printername"]) |
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| 57 | return printerslist |
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| 58 | |
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| 59 | def getUserId(self, username) : |
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| 60 | """Returns a userid given a username.""" |
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| 61 | result = self.doQuery("SELECT id FROM users WHERE username=%s;" % self.doQuote(username)) |
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| 62 | try : |
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| 63 | return self.doParseResult(result)[0]["id"] |
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| 64 | except TypeError : # Not found |
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| 65 | return |
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| 66 | |
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| 67 | def getPrinterId(self, printername) : |
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| 68 | """Returns a printerid given a printername.""" |
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| 69 | result = self.doQuery("SELECT id FROM printers WHERE printername=%s;" % self.doQuote(printername)) |
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| 70 | try : |
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| 71 | return self.doParseResult(result)[0]["id"] |
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| 72 | except TypeError : # Not found |
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| 73 | return |
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| 74 | |
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| 75 | def getPrinterPageCounter(self, printername) : |
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| 76 | """Returns the last page counter value for a printer given its name.""" |
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| 77 | result = self.doQuery("SELECT pagecounter, lastusername FROM printers WHERE printername=%s;" % self.doQuote(printername)) |
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| 78 | try : |
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| 79 | return self.doParseResult(result)[0] |
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| 80 | except TypeError : # Not found |
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| 81 | return |
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| 82 | |
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| 83 | def updatePrinterPageCounter(self, printername, username, pagecount) : |
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| 84 | """Updates the last page counter information for a printer given its name, last username and pagecount.""" |
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| 85 | return self.doQuery("UPDATE printers SET pagecounter=%s, lastusername=%s WHERE printername=%s;" % (self.doQuote(pagecount), self.doQuote(username), self.doQuote(printername))) |
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| 86 | |
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| 87 | def addUserPQuota(self, username, printername) : |
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| 88 | (userid, printerid) = self.getUPIds(username, printername) |
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| 89 | if printerid is None : |
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| 90 | self.doQuery("INSERT INTO printers (printername) VALUES (%s);" % self.doQuote(printername)) |
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| 91 | if userid is None : |
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| 92 | self.doQuery("INSERT INTO users (username) VALUES (%s);" % self.doQuote(username)) |
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| 93 | (userid, printerid) = self.getUPIds(username, printername) |
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| 94 | if (userid is not None) and (printerid is not None) : |
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| 95 | return self.doQuery("INSERT INTO userpquota (userid, printerid) VALUES (%s, %s);" % (self.doQuote(userid), self.doQuote(printerid))) |
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| 96 | |
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| 97 | def getUPIds(self, username, printername) : |
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| 98 | """Returns a tuple (userid, printerid) given a username and a printername.""" |
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| 99 | return (self.getUserId(username), self.getPrinterId(printername)) |
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| 100 | |
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| 101 | def getUserPQuota(self, username, printername) : |
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| 102 | """Returns the Print Quota information for a given (username, printername).""" |
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| 103 | (userid, printerid) = self.getUPIds(username, printername) |
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| 104 | if (userid is not None) and (printerid is not None) : |
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| 105 | result = self.doQuery("SELECT pagecounter, softlimit, hardlimit, datelimit FROM userpquota WHERE userid=%s AND printerid=%s;" % (self.doQuote(userid), self.doQuote(printerid))) |
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| 106 | try : |
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| 107 | return self.doParseResult(result)[0] |
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| 108 | except TypeError : # Not found |
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| 109 | pass |
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| 110 | |
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| 111 | def setUserPQuota(self, username, printername, softlimit, hardlimit) : |
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| 112 | """Sets soft and hard limits for a user quota on a specific printer given (username, printername).""" |
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| 113 | (userid, printerid) = self.getUPIds(username, printername) |
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| 114 | if (userid is not None) and (printerid is not None) : |
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| 115 | 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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| 116 | |
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| 117 | def updateUserPQuota(self, username, printername, pagecount) : |
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| 118 | """Updates the used user Quota information given (username, printername) and a job size in pages.""" |
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| 119 | (userid, printerid) = self.getUPIds(username, printername) |
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| 120 | if (userid is not None) and (printerid is not None) : |
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| 121 | self.doQuery("UPDATE userpquota SET pagecounter=pagecounter+(%s) WHERE userid=%s AND printerid=%s;" % (self.doQuote(pagecount), self.doQuote(userid), self.doQuote(printerid))) |
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| 122 | |
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| 123 | def buyUserPQuota(self, username, printername, pagebought) : |
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| 124 | """Buys pages for a given (username, printername).""" |
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| 125 | self.updateUserPQuota(username, printername, -pagebought) |
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| 126 | |
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