[1016] | 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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[1020] | 23 | # Revision 1.4 2003/06/10 10:45:32 jalet |
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| 24 | # Not implemented methods now raise an exception when called. |
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| 25 | # |
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[1018] | 26 | # Revision 1.3 2003/06/06 20:49:15 jalet |
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| 27 | # Very latest schema. UNTESTED. |
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| 28 | # |
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[1017] | 29 | # Revision 1.2 2003/06/06 14:21:08 jalet |
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| 30 | # New LDAP schema. |
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| 31 | # Small bug fixes. |
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| 32 | # |
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[1016] | 33 | # Revision 1.1 2003/06/05 11:19:13 jalet |
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| 34 | # More good work on LDAP storage. |
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| 35 | # |
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| 36 | # |
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| 37 | # |
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| 38 | |
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| 39 | # |
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| 40 | # My IANA assigned number, for |
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| 41 | # "Conseil Internet & Logiciels Libres, J�me Alet" |
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| 42 | # is 16868. Use this as a base to create the LDAP schema. |
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| 43 | # |
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| 44 | |
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| 45 | import fnmatch |
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| 46 | |
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| 47 | from pykota.storage import PyKotaStorageError |
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| 48 | |
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| 49 | try : |
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| 50 | import ldap |
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| 51 | except ImportError : |
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| 52 | import sys |
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| 53 | # TODO : to translate or not to translate ? |
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| 54 | raise PyKotaStorageError, "This python version (%s) doesn't seem to have the python-ldap module installed correctly." % sys.version.split()[0] |
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| 55 | |
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| 56 | class Storage : |
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| 57 | def __init__(self, host, dbname, user, passwd) : |
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| 58 | """Opens the LDAP connection.""" |
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| 59 | # raise PyKotaStorageError, "Sorry, the LDAP backend for PyKota is not yet implemented !" |
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| 60 | self.closed = 1 |
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| 61 | try : |
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| 62 | self.database = ldap.initialize(host) |
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| 63 | self.database.simple_bind_s(user, passwd) |
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| 64 | self.basedn = dbname |
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| 65 | except ldap.SERVER_DOWN : |
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| 66 | raise PyKotaStorageError, "LDAP backend for PyKota seems to be down !" # TODO : translate |
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| 67 | else : |
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| 68 | self.closed = 0 |
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| 69 | |
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| 70 | def __del__(self) : |
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| 71 | """Closes the database connection.""" |
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| 72 | if not self.closed : |
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| 73 | del self.database |
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| 74 | self.closed = 1 |
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| 75 | |
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[1017] | 76 | def doSearch(self, key, fields, base="", scope=ldap.SCOPE_SUBTREE) : |
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[1016] | 77 | """Does an LDAP search query.""" |
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| 78 | try : |
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| 79 | # prepends something more restrictive at the beginning of the base dn |
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[1017] | 80 | result = self.database.search_s(base or self.basedn, scope, key, fields) |
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[1016] | 81 | except ldap.NO_SUCH_OBJECT : |
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| 82 | return |
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| 83 | else : |
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| 84 | return result |
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| 85 | |
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| 86 | def getMatchingPrinters(self, printerpattern) : |
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| 87 | """Returns the list of all printers as tuples (id, name) for printer names which match a certain pattern.""" |
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| 88 | result = self.doSearch("objectClass=pykotaPrinter", ["pykotaPrinterName"]) |
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| 89 | if result : |
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| 90 | return [(printerid, printer["pykotaPrinterName"][0]) for (printerid, printer) in result if fnmatch.fnmatchcase(printer["pykotaPrinterName"][0], printerpattern)] |
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| 91 | |
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| 92 | def getPrinterId(self, printername) : |
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| 93 | """Returns a printerid given a printername.""" |
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[1018] | 94 | result = self.doSearch("(&(objectClass=pykotaPrinter)(|(pykotaPrinterName=%s)(cn=%s)))" % (printername, printername), ["pykotaPrinterName"]) |
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[1016] | 95 | if result : |
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| 96 | return result[0][0] |
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| 97 | |
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| 98 | def getPrinterPrices(self, printerid) : |
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| 99 | """Returns a printer prices per page and per job given a printerid.""" |
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[1018] | 100 | result = self.doSearch("(|(pykotaPrinterName=*)(cn=*))", ["pykotaPricePerPage", "pykotaPricePerJob"], base=printerid, scope=ldap.SCOPE_BASE) |
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[1016] | 101 | if result : |
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| 102 | return (float(result[0][1]["pykotaPricePerPage"][0]), float(result[0][1]["pykotaPricePerJob"][0])) |
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| 103 | |
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| 104 | def setPrinterPrices(self, printerid, perpage, perjob) : |
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| 105 | """Sets prices per job and per page for a given printer.""" |
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[1020] | 106 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 107 | |
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| 108 | def getUserId(self, username) : |
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| 109 | """Returns a userid given a username.""" |
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[1018] | 110 | result = self.doSearch("(&(objectClass=pykotaAccount)(|(pykotaUserName=%s)(uid=%s)))" % (username, username), ["uid"]) |
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[1016] | 111 | if result : |
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| 112 | return result[0][0] |
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| 113 | |
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| 114 | def getGroupId(self, groupname) : |
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| 115 | """Returns a groupid given a grupname.""" |
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[1018] | 116 | result = self.doSearch("(&(objectClass=pykotaGroup)(|(pykotaGroupName=%s)(cn=%s)))" % (groupname, groupname), ["cn"]) |
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[1016] | 117 | if result is not None : |
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| 118 | (groupid, dummy) = result[0] |
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| 119 | return groupid |
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| 120 | |
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| 121 | def getJobHistoryId(self, jobid, userid, printerid) : |
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| 122 | """Returns the history line's id given a (jobid, userid, printerid).""" |
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[1020] | 123 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 124 | |
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| 125 | def getPrinterUsers(self, printerid) : |
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| 126 | """Returns the list of userids and usernames which uses a given printer.""" |
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[1017] | 127 | # first get the printer's name from the id |
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[1018] | 128 | result = self.doSearch("objectClass=pykotaPrinter", ["pykotaPrinterName", "cn"], base=printerid, scope=ldap.SCOPE_BASE) |
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[1016] | 129 | if result : |
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[1018] | 130 | fields = result[0][1] |
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| 131 | printername = (fields.get("pykotaPrinterName") or fields.get("cn"))[0] |
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[1017] | 132 | result = self.doSearch("(&(objectClass=pykotaUserPQuota)(pykotaPrinterName=%s))" % printername, ["pykotaUserName"]) |
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| 133 | if result : |
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| 134 | return [(pquotauserid, fields["pykotaUserName"][0]) for (pquotauserid, fields) in result] |
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[1016] | 135 | |
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| 136 | def getPrinterGroups(self, printerid) : |
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| 137 | """Returns the list of groups which uses a given printer.""" |
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[1017] | 138 | # first get the printer's name from the id |
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[1018] | 139 | result = self.doSearch("objectClass=pykotaPrinter", ["pykotaPrinterName", "cn"], base=printerid, scope=ldap.SCOPE_BASE) |
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[1016] | 140 | if result : |
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[1018] | 141 | fields = result[0][1] |
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| 142 | printername = (fields.get("pykotaPrinterName") or fields.get("cn"))[0] |
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[1017] | 143 | result = self.doSearch("(&(objectClass=pykotaGroupPQuota)(pykotaPrinterName=%s))" % printername, ["pykotaGroupName"]) |
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| 144 | if result : |
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| 145 | return [(pquotagroupid, fields["pykotaGroupName"][0]) for (pquotagroupid, fields) in result] |
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[1016] | 146 | |
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| 147 | def getGroupMembersNames(self, groupname) : |
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| 148 | """Returns the list of user's names which are member of this group.""" |
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[1018] | 149 | result = self.doSearch("(&(objectClass=pykotaGroup)(|(pykotaGroupName=%s)(cn=%s)))" % (groupname, groupname), ["memberUid", "uniqueMember", "member"]) |
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[1016] | 150 | if result : |
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[1018] | 151 | fields = result[0][1] |
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| 152 | return fields.get("memberUid") or fields.get("uniqueMember") or fields.get("member") |
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[1016] | 153 | |
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| 154 | def getUserGroupsNames(self, userid) : |
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| 155 | """Returns the list of groups' names the user is a member of.""" |
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[1020] | 156 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 157 | |
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| 158 | def addPrinter(self, printername) : |
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| 159 | """Adds a printer to the quota storage, returns its id.""" |
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[1020] | 160 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 161 | |
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| 162 | def addUser(self, username) : |
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| 163 | """Adds a user to the quota storage, returns its id.""" |
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[1020] | 164 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 165 | |
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| 166 | def addGroup(self, groupname) : |
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| 167 | """Adds a group to the quota storage, returns its id.""" |
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[1020] | 168 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 169 | |
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| 170 | def addUserPQuota(self, username, printerid) : |
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| 171 | """Initializes a user print quota on a printer, adds the user to the quota storage if needed.""" |
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[1020] | 172 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 173 | |
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| 174 | def addGroupPQuota(self, groupname, printerid) : |
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| 175 | """Initializes a group print quota on a printer, adds the group to the quota storage if needed.""" |
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[1020] | 176 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 177 | |
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| 178 | def increaseUserBalance(self, userid, amount) : |
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| 179 | """Increases (or decreases) an user's account balance by a given amount.""" |
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[1020] | 180 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 181 | |
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[1017] | 182 | def getUserBalance(self, userquotaid) : |
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| 183 | """Returns the current account balance for a given user quota identifier.""" |
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| 184 | # first get the user's name from the user quota id |
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| 185 | result = self.doSearch("objectClass=pykotaUserPQuota", ["pykotaUserName"], base=userquotaid, scope=ldap.SCOPE_BASE) |
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[1016] | 186 | if result : |
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[1017] | 187 | username = result[0][1]["pykotaUserName"][0] |
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[1018] | 188 | result = self.doSearch("(&(objectClass=pykotaAccountBalance)(|(pykotaUserName=%s)(uid=%s)))" % (username, username), ["pykotaBalance", "pykotaLifeTimePaid"]) |
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[1017] | 189 | if result : |
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| 190 | fields = result[0][1] |
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| 191 | return (float(fields["pykotaBalance"][0]), float(fields["pykotaLifeTimePaid"][0])) |
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[1016] | 192 | |
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[1017] | 193 | def getUserBalanceFromUserId(self, userid) : |
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| 194 | """Returns the current account balance for a given user id.""" |
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| 195 | # first get the user's name from the user id |
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[1018] | 196 | result = self.doSearch("objectClass=pykotaAccount", ["pykotaUserName", "uid"], base=userid, scope=ldap.SCOPE_BASE) |
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[1017] | 197 | if result : |
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[1018] | 198 | fields = result[0][1] |
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| 199 | username = (fields.get("pykotaUserName") or fields.get("uid"))[0] |
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| 200 | result = self.doSearch("(&(objectClass=pykotaAccountBalance)(|(pykotaUserName=%s)(uid=%s)))" % (username, username), ["pykotaBalance", "pykotaLifeTimePaid"]) |
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[1017] | 201 | if result : |
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| 202 | fields = result[0][1] |
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| 203 | return (float(fields["pykotaBalance"][0]), float(fields["pykotaLifeTimePaid"][0])) |
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| 204 | |
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| 205 | def getGroupBalance(self, groupquotaid) : |
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[1016] | 206 | """Returns the current account balance for a given group, as the sum of each of its users' account balance.""" |
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[1017] | 207 | # first get the group's name from the group quota id |
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| 208 | result = self.doSearch("objectClass=pykotaGroupPQuota", ["pykotaGroupName"], base=groupquotaid, scope=ldap.SCOPE_BASE) |
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| 209 | if result : |
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| 210 | groupname = result[0][1]["pykotaGroupName"][0] |
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| 211 | members = self.getGroupMembersNames(groupname) |
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| 212 | balance = lifetimepaid = 0.0 |
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| 213 | for member in members : |
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| 214 | userid = self.getUserId(member) |
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| 215 | if userid : |
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| 216 | userbal = self.getUserBalanceFromUserId(userid) |
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| 217 | if userbal : |
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| 218 | (bal, paid) = userbal |
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| 219 | balance += bal |
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| 220 | lifetimepaid += paid |
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| 221 | return (balance, lifetimepaid) |
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[1016] | 222 | |
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| 223 | def getUserLimitBy(self, userid) : |
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| 224 | """Returns the way in which user printing is limited.""" |
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[1017] | 225 | result = self.doSearch("objectClass=pykotaAccount", ["pykotaLimitBy"], base=userid, scope=ldap.SCOPE_BASE) |
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[1016] | 226 | if result : |
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| 227 | return result[0][1]["pykotaLimitBy"][0] |
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| 228 | |
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[1017] | 229 | def getGroupLimitBy(self, groupquotaid) : |
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[1016] | 230 | """Returns the way in which group printing is limited.""" |
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[1017] | 231 | # first get the group's name from the group quota id |
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| 232 | result = self.doSearch("objectClass=pykotaGroupPQuota", ["pykotaGroupName"], base=groupquotaid, scope=ldap.SCOPE_BASE) |
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[1016] | 233 | if result : |
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[1017] | 234 | groupname = result[0][1]["pykotaGroupName"][0] |
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| 235 | result = self.doSearch("(&(objectClass=pykotaGroup)(pykotaGroupName=%s))" % groupname, ["pykotaLimitBy"]) |
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| 236 | if result : |
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| 237 | return result[0][1]["pykotaLimitBy"][0] |
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[1016] | 238 | |
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| 239 | def setUserBalance(self, userid, balance) : |
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| 240 | """Sets the account balance for a given user to a fixed value.""" |
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[1020] | 241 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 242 | |
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| 243 | def limitUserBy(self, userid, limitby) : |
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| 244 | """Limits a given user based either on print quota or on account balance.""" |
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[1020] | 245 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 246 | |
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| 247 | def limitGroupBy(self, groupid, limitby) : |
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| 248 | """Limits a given group based either on print quota or on sum of its users' account balances.""" |
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[1020] | 249 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 250 | |
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| 251 | def setUserPQuota(self, userid, printerid, softlimit, hardlimit) : |
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| 252 | """Sets soft and hard limits for a user quota on a specific printer given (userid, printerid).""" |
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[1020] | 253 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 254 | |
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| 255 | def setGroupPQuota(self, groupid, printerid, softlimit, hardlimit) : |
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| 256 | """Sets soft and hard limits for a group quota on a specific printer given (groupid, printerid).""" |
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[1020] | 257 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 258 | |
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| 259 | def resetUserPQuota(self, userid, printerid) : |
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| 260 | """Resets the page counter to zero for a user on a printer. Life time page counter is kept unchanged.""" |
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[1020] | 261 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 262 | |
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| 263 | def resetGroupPQuota(self, groupid, printerid) : |
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| 264 | """Resets the page counter to zero for a group on a printer. Life time page counter is kept unchanged.""" |
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[1020] | 265 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 266 | |
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| 267 | def updateUserPQuota(self, userid, printerid, pagecount) : |
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| 268 | """Updates the used user Quota information given (userid, printerid) and a job size in pages.""" |
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[1020] | 269 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 270 | |
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[1017] | 271 | def getUserPQuota(self, userquotaid, printerid) : |
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| 272 | """Returns the Print Quota information for a given (userquotaid, printerid).""" |
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| 273 | # first get the user's name from the id |
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| 274 | result = self.doSearch("objectClass=pykotaUserPQuota", ["pykotaUserName", "pykotaPageCounter", "pykotaLifePageCounter", "pykotaSoftLimit", "pykotaHardLimit", "pykotaDateLimit"], base=userquotaid, scope=ldap.SCOPE_BASE) |
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[1016] | 275 | if result : |
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| 276 | fields = result[0][1] |
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| 277 | datelimit = fields["pykotaDateLimit"][0].strip() |
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| 278 | if (not datelimit) or (datelimit.upper() == "NONE") : |
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| 279 | datelimit = None |
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| 280 | return { "lifepagecounter" : int(fields["pykotaLifePageCounter"][0]), |
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| 281 | "pagecounter" : int(fields["pykotaPageCounter"][0]), |
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| 282 | "softlimit" : int(fields["pykotaSoftLimit"][0]), |
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| 283 | "hardlimit" : int(fields["pykotaHardLimit"][0]), |
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| 284 | "datelimit" : datelimit |
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| 285 | } |
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| 286 | |
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[1017] | 287 | def getGroupPQuota(self, grouppquotaid, printerid) : |
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| 288 | """Returns the Print Quota information for a given (grouppquotaid, printerid).""" |
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| 289 | result = self.doSearch("objectClass=pykotaGroupPQuota", ["pykotaGroupName", "pykotaSoftLimit", "pykotaHardLimit", "pykotaDateLimit"], base=grouppquotaid, scope=ldap.SCOPE_BASE) |
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[1016] | 290 | if result : |
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| 291 | fields = result[0][1] |
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[1017] | 292 | groupname = fields["pykotaGroupName"][0] |
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[1016] | 293 | datelimit = fields["pykotaDateLimit"][0].strip() |
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| 294 | if (not datelimit) or (datelimit.upper() == "NONE") : |
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| 295 | datelimit = None |
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| 296 | quota = { |
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| 297 | "softlimit" : int(fields["pykotaSoftLimit"][0]), |
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| 298 | "hardlimit" : int(fields["pykotaHardLimit"][0]), |
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| 299 | "datelimit" : datelimit |
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| 300 | } |
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| 301 | members = self.getGroupMembersNames(groupname) |
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| 302 | pagecounter = lifepagecounter = 0 |
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| 303 | printerusers = self.getPrinterUsers(printerid) |
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| 304 | if printerusers : |
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| 305 | for (userid, username) in printerusers : |
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| 306 | if username in members : |
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| 307 | userpquota = self.getUserPQuota(userid, printerid) |
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| 308 | if userpquota : |
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| 309 | pagecounter += userpquota["pagecounter"] |
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| 310 | lifepagecounter += userpquota["lifepagecounter"] |
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| 311 | quota.update({"pagecounter": pagecounter, "lifepagecounter": lifepagecounter}) |
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| 312 | return quota |
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| 313 | |
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| 314 | def setUserDateLimit(self, userid, printerid, datelimit) : |
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| 315 | """Sets the limit date for a soft limit to become an hard one given (userid, printerid).""" |
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[1020] | 316 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 317 | |
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| 318 | def setGroupDateLimit(self, groupid, printerid, datelimit) : |
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| 319 | """Sets the limit date for a soft limit to become an hard one given (groupid, printerid).""" |
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[1020] | 320 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 321 | |
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| 322 | def addJobToHistory(self, jobid, userid, printerid, pagecounter, action) : |
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| 323 | """Adds a job to the history: (jobid, userid, printerid, last page counter taken from requester).""" |
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[1020] | 324 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 325 | |
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| 326 | def updateJobSizeInHistory(self, historyid, jobsize) : |
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| 327 | """Updates a job size in the history given the history line's id.""" |
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[1020] | 328 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 329 | |
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| 330 | def getPrinterPageCounter(self, printerid) : |
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| 331 | """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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| 332 | return # TODO |
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| 333 | result = self.doSearch("objectClass=pykotaPrinterJob", ["pykotaJobHistoryId", "pykotaJobId", "uid", "pykotaPrinterPageCounter", "pykotaJobSize", "pykotaAction", "pykotaJobDate"], base=printerid) |
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| 334 | if result : |
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| 335 | pass # TODO |
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| 336 | |
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| 337 | def addUserToGroup(self, userid, groupid) : |
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| 338 | """Adds an user to a group.""" |
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[1020] | 339 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 340 | |
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| 341 | def deleteUser(self, userid) : |
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| 342 | """Completely deletes an user from the Quota Storage.""" |
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[1020] | 343 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 344 | |
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| 345 | def deleteGroup(self, groupid) : |
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| 346 | """Completely deletes an user from the Quota Storage.""" |
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[1020] | 347 | raise PyKotaStorageError, "Not implemented !" |
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[1016] | 348 | |
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| 349 | def computePrinterJobPrice(self, printerid, jobsize) : |
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| 350 | """Returns the price for a job on a given printer.""" |
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| 351 | # TODO : create a base class with things like this |
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| 352 | prices = self.getPrinterPrices(printerid) |
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| 353 | if prices is None : |
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| 354 | perpage = perjob = 0.0 |
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| 355 | else : |
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| 356 | (perpage, perjob) = prices |
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| 357 | return perjob + (perpage * jobsize) |
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