| 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 1.2 2003/02/05 22:28:38 jalet |
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| 18 | # More robust storage |
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| 19 | # |
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| 20 | # Revision 1.1 2003/02/05 21:28:17 jalet |
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| 21 | # Initial import into CVS |
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| 22 | # |
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| 23 | # |
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| 24 | # |
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| 25 | |
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| 26 | from mx import DateTime |
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| 27 | |
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| 28 | class SQLStorage : |
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| 29 | def getUserId(self, username) : |
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| 30 | result = self.doQuery("SELECT id FROM users WHERE username=%s;" % self.doQuote(username)) |
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| 31 | try : |
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| 32 | return self.doParseResult(result)[0]["id"] |
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| 33 | except TypeError : # Not found |
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| 34 | return |
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| 35 | |
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| 36 | def getPrinterId(self, printername) : |
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| 37 | result = self.doQuery("SELECT id FROM printers WHERE printername=%s;" % self.doQuote(printername)) |
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| 38 | try : |
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| 39 | return self.doParseResult(result)[0]["id"] |
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| 40 | except TypeError : # Not found |
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| 41 | return |
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| 42 | |
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| 43 | def getPrinterPageCounter(self, printername) : |
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| 44 | result = self.doQuery("SELECT pagecounter, lastusername FROM printers WHERE printername=%s;" % self.doQuote(printername)) |
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| 45 | try : |
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| 46 | return self.doParseResult(result)[0] |
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| 47 | except TypeError : # Not found |
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| 48 | return |
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| 49 | |
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| 50 | def updatePrinterPageCounter(self, printername, username, pagecount) : |
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| 51 | 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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| 52 | |
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| 53 | def addUserPQuota(self, username, printername) : |
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| 54 | printerid = self.getPrinterId(printername) |
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| 55 | if printerid is None : |
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| 56 | self.doQuery("INSERT INTO printers (printername) VALUES (%s);" % self.doQuote(printername)) |
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| 57 | printerid = self.getPrinterId(printername) |
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| 58 | userid = self.getUserId(username) |
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| 59 | if userid is None : |
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| 60 | self.doQuery("INSERT INTO users (username) VALUES (%s);" % self.doQuote(username)) |
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| 61 | userid = self.getUserId(username) |
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| 62 | if (printerid is not None) and (userid is not None) : |
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| 63 | return self.doQuery("INSERT INTO userpquota (userid, printerid) VALUES (%s, %s);" % (self.doQuote(userid), self.doQuote(printerid))) |
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| 64 | |
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| 65 | def getUserPQuota(self, username, printername) : |
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| 66 | result = self.doQuery("SELECT pagecounter, softlimit, hardlimit, datelimit FROM userpquota WHERE userid=%s AND printerid=%s;" % (self.doQuote(self.getUserId(username)), self.doQuote(self.getPrinterId(printername)))) |
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| 67 | try : |
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| 68 | return self.doParseResult(result)[0] |
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| 69 | except TypeError : # Not found |
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| 70 | return |
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| 71 | |
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| 72 | def setUserPQuota(self, username, printername, softlimit, hardlimit) : |
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| 73 | 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(self.getUserId(username)), self.doQuote(self.getPrinterId(printername)))) |
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| 74 | |
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| 75 | def updateUserPQuota(self, username, printername, pagecount) : |
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| 76 | self.doQuery("UPDATE userpquota SET pagecounter=pagecounter+(%s) WHERE userid=%s AND printerid=%s;" % (self.doQuote(pagecount), self.doQuote(self.getUserId(username)), self.doQuote(self.getPrinterId(printername)))) |
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| 77 | |
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| 78 | def buyUserPQuota(self, username, printername, pagebought) : |
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| 79 | self.updateUserPQuota(username, printername, -pagebought) |
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| 80 | |
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| 81 | def checkUserPQuota(self, username, printername) : |
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| 82 | # TODO : this doesn't work as expected wrt dates |
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| 83 | # TODO : GRACEDELAY should come from the configuration file |
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| 84 | # TODO : move this into the PyKotaTool class |
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| 85 | now = DateTime.now() |
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| 86 | quota = self.getUserPQuota(username, printername) |
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| 87 | pagecounter = quota["pagecounter"] |
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| 88 | softlimit = quota["softlimit"] |
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| 89 | hardlimit = quota["hardlimit"] |
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| 90 | datelimit = quota["datelimit"] |
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| 91 | if datelimit : |
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| 92 | datelimit = DateTime.DateTime(datelimit) # TODO : check this ! |
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| 93 | if softlimit is not None : |
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| 94 | if pagecounter < softlimit : |
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| 95 | action = "ALLOW" |
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| 96 | elif hardlimit is not None : |
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| 97 | if softlimit <= pagecounter < hardlimit : |
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| 98 | if datelimit is None : |
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| 99 | self.doQuery("UPDATE userpquota SET datelimit=%s WHERE userid=%s AND printerid=%s;" % ('%04i-%02i-%02i' % (now.year, now.month, now.day), self.doQuote(self.getUserId(username)), self.doQuote(self.getPrinterId(printername)))) |
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| 100 | datelimit = now |
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| 101 | if (now - datelimit) <= GRACEDELAY : |
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| 102 | action = "WARN" |
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| 103 | else : |
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| 104 | action = "DENY" |
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| 105 | else : |
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| 106 | action = "DENY" |
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| 107 | else : |
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| 108 | action = "DENY" |
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| 109 | else : |
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| 110 | action = "ALLOW" |
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| 111 | return (action, (hardlimit - pagecounter), datelimit) |
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| 112 | |
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