| 1 | # PyKota |
|---|
| 2 | # |
|---|
| 3 | # PyKota : Print Quotas for CUPS |
|---|
| 4 | # |
|---|
| 5 | # (c) 2003 Jerome Alet <alet@librelogiciel.com> |
|---|
| 6 | # You're welcome to redistribute this software under the |
|---|
| 7 | # terms of the GNU General Public Licence version 2.0 |
|---|
| 8 | # or, at your option, any higher version. |
|---|
| 9 | # |
|---|
| 10 | # You can read the complete GNU GPL in the file COPYING |
|---|
| 11 | # which should come along with this software, or visit |
|---|
| 12 | # the Free Software Foundation's WEB site http://www.fsf.org |
|---|
| 13 | # |
|---|
| 14 | # $Id$ |
|---|
| 15 | # |
|---|
| 16 | # $Log$ |
|---|
| 17 | # Revision 1.9 2003/02/06 14:52:35 jalet |
|---|
| 18 | # Forgotten import |
|---|
| 19 | # |
|---|
| 20 | # Revision 1.8 2003/02/06 14:49:04 jalet |
|---|
| 21 | # edpykota should be ok now |
|---|
| 22 | # |
|---|
| 23 | # Revision 1.7 2003/02/06 14:28:59 jalet |
|---|
| 24 | # edpykota should be ok, minus some typos |
|---|
| 25 | # |
|---|
| 26 | # Revision 1.6 2003/02/06 09:19:02 jalet |
|---|
| 27 | # More robust behavior (hopefully) when the user or printer is not managed |
|---|
| 28 | # correctly by the Quota System : e.g. cupsFilter added in ppd file, but |
|---|
| 29 | # printer and/or user not 'yet?' in storage. |
|---|
| 30 | # |
|---|
| 31 | # Revision 1.5 2003/02/05 23:26:22 jalet |
|---|
| 32 | # Incorrect handling of grace delay |
|---|
| 33 | # |
|---|
| 34 | # Revision 1.4 2003/02/05 23:02:10 jalet |
|---|
| 35 | # Typo |
|---|
| 36 | # |
|---|
| 37 | # Revision 1.3 2003/02/05 23:00:12 jalet |
|---|
| 38 | # Forgotten import |
|---|
| 39 | # Bad datetime conversion |
|---|
| 40 | # |
|---|
| 41 | # Revision 1.2 2003/02/05 22:28:38 jalet |
|---|
| 42 | # More robust storage |
|---|
| 43 | # |
|---|
| 44 | # Revision 1.1 2003/02/05 21:28:17 jalet |
|---|
| 45 | # Initial import into CVS |
|---|
| 46 | # |
|---|
| 47 | # |
|---|
| 48 | # |
|---|
| 49 | |
|---|
| 50 | import fnmatch |
|---|
| 51 | |
|---|
| 52 | class SQLStorage : |
|---|
| 53 | def getMatchingPrinters(self, printerpattern) : |
|---|
| 54 | """Returns the list of all printer names which match a certain pattern.""" |
|---|
| 55 | printerslist = [] |
|---|
| 56 | # We 'could' do a SELECT printername FROM printers WHERE printername LIKE ... |
|---|
| 57 | # but we don't because other storages semantics may be different, so every |
|---|
| 58 | # storage should use fnmatch to match patterns and be storage agnostic |
|---|
| 59 | result = self.doQuery("SELECT printername FROM printers;") |
|---|
| 60 | result = self.doParseResult(result) |
|---|
| 61 | if result is not None : |
|---|
| 62 | for printer in result : |
|---|
| 63 | if fnmatch.fnmatchcase(printer["printername"], printerpattern) : |
|---|
| 64 | printerslist.append(printer["printername"]) |
|---|
| 65 | return printerslist |
|---|
| 66 | |
|---|
| 67 | def getUserId(self, username) : |
|---|
| 68 | """Returns a userid given a username.""" |
|---|
| 69 | result = self.doQuery("SELECT id FROM users WHERE username=%s;" % self.doQuote(username)) |
|---|
| 70 | try : |
|---|
| 71 | return self.doParseResult(result)[0]["id"] |
|---|
| 72 | except TypeError : # Not found |
|---|
| 73 | return |
|---|
| 74 | |
|---|
| 75 | def getPrinterId(self, printername) : |
|---|
| 76 | """Returns a printerid given a printername.""" |
|---|
| 77 | result = self.doQuery("SELECT id FROM printers WHERE printername=%s;" % self.doQuote(printername)) |
|---|
| 78 | try : |
|---|
| 79 | return self.doParseResult(result)[0]["id"] |
|---|
| 80 | except TypeError : # Not found |
|---|
| 81 | return |
|---|
| 82 | |
|---|
| 83 | def getPrinterPageCounter(self, printername) : |
|---|
| 84 | """Returns the last page counter value for a printer given its name.""" |
|---|
| 85 | result = self.doQuery("SELECT pagecounter, lastusername FROM printers WHERE printername=%s;" % self.doQuote(printername)) |
|---|
| 86 | try : |
|---|
| 87 | return self.doParseResult(result)[0] |
|---|
| 88 | except TypeError : # Not found |
|---|
| 89 | return |
|---|
| 90 | |
|---|
| 91 | def updatePrinterPageCounter(self, printername, username, pagecount) : |
|---|
| 92 | """Updates the last page counter information for a printer given its name, last username and pagecount.""" |
|---|
| 93 | return self.doQuery("UPDATE printers SET pagecounter=%s, lastusername=%s WHERE printername=%s;" % (self.doQuote(pagecount), self.doQuote(username), self.doQuote(printername))) |
|---|
| 94 | |
|---|
| 95 | def addUserPQuota(self, username, printername) : |
|---|
| 96 | (userid, printerid) = self.getUPIds(username, printername) |
|---|
| 97 | if printerid is None : |
|---|
| 98 | self.doQuery("INSERT INTO printers (printername) VALUES (%s);" % self.doQuote(printername)) |
|---|
| 99 | if userid is None : |
|---|
| 100 | self.doQuery("INSERT INTO users (username) VALUES (%s);" % self.doQuote(username)) |
|---|
| 101 | (userid, printerid) = self.getUPIds(username, printername) |
|---|
| 102 | if (userid is not None) and (printerid is not None) : |
|---|
| 103 | return self.doQuery("INSERT INTO userpquota (userid, printerid) VALUES (%s, %s);" % (self.doQuote(userid), self.doQuote(printerid))) |
|---|
| 104 | |
|---|
| 105 | def getUPIds(self, username, printername) : |
|---|
| 106 | """Returns a tuple (userid, printerid) given a username and a printername.""" |
|---|
| 107 | return (self.getUserId(username), self.getPrinterId(printername)) |
|---|
| 108 | |
|---|
| 109 | def getUserPQuota(self, username, printername) : |
|---|
| 110 | """Returns the Print Quota information for a given (username, printername).""" |
|---|
| 111 | (userid, printerid) = self.getUPIds(username, printername) |
|---|
| 112 | if (userid is not None) and (printerid is not None) : |
|---|
| 113 | result = self.doQuery("SELECT pagecounter, softlimit, hardlimit, datelimit FROM userpquota WHERE userid=%s AND printerid=%s;" % (self.doQuote(userid), self.doQuote(printerid))) |
|---|
| 114 | try : |
|---|
| 115 | return self.doParseResult(result)[0] |
|---|
| 116 | except TypeError : # Not found |
|---|
| 117 | pass |
|---|
| 118 | |
|---|
| 119 | def setUserPQuota(self, username, printername, softlimit, hardlimit) : |
|---|
| 120 | """Sets soft and hard limits for a user quota on a specific printer given (username, printername).""" |
|---|
| 121 | (userid, printerid) = self.getUPIds(username, printername) |
|---|
| 122 | if (userid is not None) and (printerid is not None) : |
|---|
| 123 | 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))) |
|---|
| 124 | |
|---|
| 125 | def updateUserPQuota(self, username, printername, pagecount) : |
|---|
| 126 | """Updates the used user Quota information given (username, printername) and a job size in pages.""" |
|---|
| 127 | (userid, printerid) = self.getUPIds(username, printername) |
|---|
| 128 | if (userid is not None) and (printerid is not None) : |
|---|
| 129 | self.doQuery("UPDATE userpquota SET pagecounter=pagecounter+(%s) WHERE userid=%s AND printerid=%s;" % (self.doQuote(pagecount), self.doQuote(userid), self.doQuote(printerid))) |
|---|
| 130 | |
|---|
| 131 | def buyUserPQuota(self, username, printername, pagebought) : |
|---|
| 132 | """Buys pages for a given (username, printername).""" |
|---|
| 133 | self.updateUserPQuota(username, printername, -pagebought) |
|---|
| 134 | |
|---|
