root / pykota / trunk / bin / pkrefund @ 3063

#! /usr/bin/env python
# -*- coding: ISO-8859-15 -*-

# PyKota Print Job Refund Manager
#
# PyKota - Print Quotas for CUPS and LPRng
#
# (c) 2003, 2004, 2005, 2006 Jerome Alet <alet@librelogiciel.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# $Id$
#
#

import sys

from pykota.tool import PyKotaTool, PyKotaCommandLineError, crashed, N_

__doc__ = N_("""pkrefund v%(__version__)s (c) %(__years__)s %(__author__)s

Refunds jobs.

command line usage :

  pkrefund [options] [filterexpr]

options :

  -v | --version       Prints pkrefund's version number then exits.
  -h | --help          Prints this message then exits.
  
  -f | --force         Doesn't ask for confirmation before refunding jobs.
  -r | --reason txt    Sets textual information to explain the refunding.

  Use the filter expressions to extract only parts of the 
  datas. Allowed filters are of the form :
                
         key=value
                         
  Allowed keys for now are :  
                       
         username       User's name
         printername    Printer's name
         hostname       Client's hostname
         jobid          Job's Id
         billingcode    Job's billing code
         start          Job's date of printing
         end            Job's date of printing
         
  Contrary to other PyKota management tools, wildcard characters are not 
  expanded, so you can't use them.
  
Examples :

  $ pkrefund jobid=503
  
  This will refund all jobs which Id is 503. BEWARE : installing CUPS
  afresh will reset the first job id at 1. So you probably want to use
  a more precise filter as explained below
  
  $ pkrefund --reason "Hardware problem" jobid=503 start=today-7
  
  Refunds all jobs which id is 503 but which were printed during the
  past week. The reason will be marked as being an hardware problem.
  
  $ pkrefund --force username=jerome printername=HP2100
  
  Refunds all jobs printed by user jerome on printer HP2100. No
  confirmation will be asked.
  
  $ pkrefund --force printername=HP2100 start=200602 end=yesterday
  
  Refunds all jobs printed on printer HP2100 between February 1st 2006
  and yesterday. No confirmation will be asked.
""")
        
class PkRefund(PyKotaTool) :        
    """A class for refund manager."""
    validfilterkeys = [ "username",
                        "printername",
                        "hostname",
                        "jobid",
                        "billingcode",
                        "start",
                        "end",
                      ]
    def main(self, arguments, options, restricted=1) :
        """Print Quota Data Dumper."""
        if restricted and not self.config.isAdmin :
            raise PyKotaCommandLineError, "%s : %s" % (pwd.getpwuid(os.geteuid())[0], _("You're not allowed to use this command."))
            
        extractonly = {}
        for filterexp in arguments :
            if filterexp.strip() :
                try :
                    (filterkey, filtervalue) = [part.strip() for part in filterexp.split("=")]
                    filterkey = filterkey.lower()
                    if filterkey not in self.validfilterkeys :
                        raise ValueError                
                except ValueError :    
                    raise PyKotaCommandLineError, _("Invalid filter value [%s], see help.") % filterexp
                else :    
                    extractonly.update({ filterkey : filtervalue })
            
        username = extractonly.get("username")    
        if username :
            user = self.storage.getUser(username)
        else :
            user = None
            
        printername = extractonly.get("printername")    
        if printername :
            printer = self.storage.getPrinter(printername)
        else :    
            printer = None
            
        start = extractonly.get("start")
        end = extractonly.get("end")
        (start, end) = self.storage.cleanDates(start, end)
        
        jobs = self.storage.retrieveHistory(user=user,    
                                            printer=printer, 
                                            hostname=extractonly.get("hostname"),
                                            billingcode=extractonly.get("billingcode"),
                                            jobid=extractonly.get("jobid"),
                                            start=start,
                                            end=end,
                                            limit=0)
        nbjobs = 0                                    
        nbpages = 0                                            
        nbcredits = 0.0
        reason = (options.get("reason") or "").strip()
        for job in jobs :                                    
            if job.JobSize and (job.JobAction not in ("DENY", "CANCEL", "REFUND")) :
                if options["force"] :
                    nbpages += job.JobSize
                    nbcredits += job.JobPrice
                    job.refund(reason)
                    nbjobs += 1
                else :    
                    print _("Date : %s") % str(job.JobDate)[:19]
                    print _("JobId : %s") % job.JobId
                    print _("Username : %s") % job.User.Name
                    print _("Printername : %s") % job.Printer.Name
                    print _("Billing code : %s") % job.JobBillingCode
                    print _("Pages : %i") % job.JobSize
                    print _("Credits : %.3f") % job.JobPrice
                    print _("Title : %s") % job.JobTitle
                    
                    while True :                             
                        answer = raw_input("\t%s ? " % _("Refund (Y/N)")).strip().upper()
                        if answer == _("Y") :
                            nbpages += job.JobSize
                            nbcredits += job.JobPrice
                            job.refund(reason)
                            nbjobs += 1
                            break    
                        elif answer == _("N") :    
                            break
                    print        
        print _("Refunded %i jobs, %i pages and %.3f credits") % (nbjobs, nbpages, nbcredits)                                 
                    
            
if __name__ == "__main__" : 
    retcode = 0
    try :
        short_options = "vhfr"
        long_options = ["help", "version", "force", "reason="]
        
        # Initializes the command line tool
        refundmanager = PkRefund(doc=__doc__)
        refundmanager.deferredInit()
        
        # parse and checks the command line
        (options, args) = refundmanager.parseCommandline(sys.argv[1:], short_options, long_options, allownothing=1)
        
        # sets long options
        options["help"] = options["h"] or options["help"]
        options["version"] = options["v"] or options["version"]
        options["force"] = options["f"] or options["force"]
        options["reason"] = options["r"] or options["reason"]
        
        if options["help"] :
            refundmanager.display_usage_and_quit()
        elif options["version"] :
            refundmanager.display_version_and_quit()
        else :
            retcode = refundmanager.main(args, options)
    except KeyboardInterrupt :        
        sys.stderr.write("\nInterrupted with Ctrl+C !\n")
        retcode = -3
    except PyKotaCommandLineError, msg :    
        sys.stderr.write("%s : %s\n" % (sys.argv[0], msg))
        retcode = -2
    except SystemExit :        
        pass
    except :
        try :
            refundmanager.crashed("pkrefund failed")
        except :    
            crashed("pkrefund failed")
        retcode = -1

    try :
        refundmanager.storage.close()
    except (TypeError, NameError, AttributeError) :    
        pass
        
    sys.exit(retcode)