| 1 | #! /usr/bin/env python |
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| 2 | # -*- coding: UTF-8 -*- |
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| 3 | # |
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| 4 | # PyKota : Print Quotas for CUPS |
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| 5 | # |
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| 6 | # (c) 2003, 2004, 2005, 2006, 2007, 2008 Jerome Alet <alet@librelogiciel.com> |
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| 7 | # This program is free software: you can redistribute it and/or modify |
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| 8 | # it under the terms of the GNU General Public License as published by |
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| 9 | # the Free Software Foundation, either version 3 of the License, or |
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| 10 | # (at your option) any later version. |
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| 11 | # |
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| 12 | # This program is distributed in the hope that it will be useful, |
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | # GNU General Public License for more details. |
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| 16 | # |
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| 17 | # You should have received a copy of the GNU General Public License |
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| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 19 | # |
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| 20 | # $Id$ |
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| 21 | # |
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| 22 | # |
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| 23 | |
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| 24 | """A refunding tool for PyKota""" |
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| 25 | |
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| 26 | import sys |
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| 27 | import os |
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| 28 | import pwd |
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| 29 | import time |
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| 30 | import cStringIO |
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| 31 | |
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| 32 | try : |
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| 33 | from reportlab.pdfgen import canvas |
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| 34 | from reportlab.lib import pagesizes |
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| 35 | from reportlab.lib.units import cm |
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| 36 | except ImportError : |
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| 37 | hasRL = False |
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| 38 | else : |
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| 39 | hasRL = True |
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| 40 | |
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| 41 | try : |
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| 42 | import PIL.Image |
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| 43 | except ImportError : |
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| 44 | hasPIL = False |
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| 45 | else : |
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| 46 | hasPIL = True |
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| 47 | |
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| 48 | import pykota.appinit |
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| 49 | from pykota.utils import run |
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| 50 | from pykota.commandline import PyKotaOptionParser, \ |
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| 51 | checkandset_pagesize, \ |
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| 52 | checkandset_positiveint |
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| 53 | from pykota.pdfutils import getPageSize |
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| 54 | from pykota.errors import PyKotaToolError, PyKotaCommandLineError |
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| 55 | from pykota.tool import Percent, PyKotaTool |
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| 56 | |
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| 57 | class PKRefund(PyKotaTool) : |
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| 58 | """A class for refund manager.""" |
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| 59 | validfilterkeys = [ "username", |
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| 60 | "printername", |
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| 61 | "hostname", |
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| 62 | "jobid", |
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| 63 | "billingcode", |
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| 64 | "start", |
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| 65 | "end", |
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| 66 | ] |
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| 67 | |
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| 68 | def printVar(self, label, value, size) : |
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| 69 | """Outputs a variable onto the PDF canvas. |
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| 70 | |
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| 71 | Returns the number of points to substract to current Y coordinate. |
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| 72 | """ |
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| 73 | xcenter = (self.pagesize[0] / 2.0) - 1*cm |
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| 74 | self.canvas.saveState() |
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| 75 | self.canvas.setFont("Helvetica-Bold", size) |
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| 76 | self.canvas.setFillColorRGB(0, 0, 0) |
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| 77 | self.canvas.drawRightString(xcenter, self.ypos, "%s :" % label) |
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| 78 | self.canvas.setFont("Courier-Bold", size) |
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| 79 | self.canvas.setFillColorRGB(0, 0, 1) |
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| 80 | self.canvas.drawString(xcenter + 0.5*cm, self.ypos, value) |
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| 81 | self.canvas.restoreState() |
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| 82 | self.ypos -= (size + 4) |
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| 83 | |
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| 84 | def pagePDF(self, receiptnumber, name, values, unit, reason) : |
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| 85 | """Generates a new page in the PDF document.""" |
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| 86 | if values["nbpages"] : |
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| 87 | self.canvas.doForm("background") |
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| 88 | self.ypos = self.yorigine - (cm + 20) |
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| 89 | self.printVar(_("Refunding receipt"), "#%s" % receiptnumber, 22) |
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| 90 | self.printVar(_("Username"), name, 22) |
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| 91 | self.ypos -= 20 |
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| 92 | datetime = time.strftime("%c", time.localtime()).decode(self.charset, "replace") |
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| 93 | self.printVar(_("Edited on"), datetime, 14) |
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| 94 | |
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| 95 | self.ypos -= 20 |
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| 96 | self.printVar(_("Jobs refunded"), str(values["nbjobs"]), 18) |
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| 97 | self.printVar(_("Pages refunded"), str(values["nbpages"]), 18) |
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| 98 | self.printVar(_("Amount refunded"), "%.3f %s" % (values["nbcredits"], unit), 18) |
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| 99 | self.ypos -= 20 |
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| 100 | self.printVar(_("Reason"), reason, 14) |
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| 101 | self.canvas.showPage() |
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| 102 | return 1 |
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| 103 | return 0 |
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| 104 | |
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| 105 | def initPDF(self, logo) : |
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| 106 | """Initializes the PDF document.""" |
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| 107 | self.pdfDocument = cStringIO.StringIO() |
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| 108 | self.canvas = c = canvas.Canvas(self.pdfDocument, \ |
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| 109 | pagesize=self.pagesize, \ |
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| 110 | pageCompression=1) |
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| 111 | |
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| 112 | c.setAuthor(self.effectiveUserName) |
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| 113 | c.setTitle(_("PyKota print job refunding receipts")) |
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| 114 | c.setSubject(_("Print job refunding receipts generated with PyKota")) |
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| 115 | |
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| 116 | self.canvas.beginForm("background") |
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| 117 | self.canvas.saveState() |
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| 118 | |
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| 119 | self.ypos = self.pagesize[1] - (2 * cm) |
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| 120 | |
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| 121 | xcenter = self.pagesize[0] / 2.0 |
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| 122 | if logo : |
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| 123 | try : |
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| 124 | imglogo = PIL.Image.open(logo) |
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| 125 | except IOError : |
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| 126 | self.printInfo("Unable to open image %s" % logo, "warn") |
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| 127 | else : |
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| 128 | (width, height) = imglogo.size |
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| 129 | multi = float(width) / (8 * cm) |
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| 130 | width = float(width) / multi |
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| 131 | height = float(height) / multi |
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| 132 | self.ypos -= height |
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| 133 | c.drawImage(logo, xcenter - (width / 2.0), \ |
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| 134 | self.ypos, \ |
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| 135 | width, height) |
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| 136 | |
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| 137 | self.ypos -= (cm + 20) |
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| 138 | self.canvas.setFont("Helvetica-Bold", 14) |
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| 139 | self.canvas.setFillColorRGB(0, 0, 0) |
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| 140 | msg = _("Here's the receipt for the refunding of your print jobs") |
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| 141 | self.canvas.drawCentredString(xcenter, self.ypos, "%s :" % msg) |
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| 142 | |
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| 143 | self.yorigine = self.ypos |
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| 144 | self.canvas.restoreState() |
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| 145 | self.canvas.endForm() |
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| 146 | |
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| 147 | def endPDF(self, fname) : |
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| 148 | """Flushes the PDF generator.""" |
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| 149 | self.canvas.save() |
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| 150 | if fname != "-" : |
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| 151 | outfile = open(fname, "w") |
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| 152 | outfile.write(self.pdfDocument.getvalue()) |
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| 153 | outfile.close() |
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| 154 | else : |
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| 155 | sys.stdout.write(self.pdfDocument.getvalue()) |
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| 156 | sys.stdout.flush() |
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| 157 | |
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| 158 | def genReceipts(self, peruser, logo, outfname, firstnumber, reason, unit) : |
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| 159 | """Generates the receipts file.""" |
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| 160 | if len(peruser) : |
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| 161 | percent = Percent(self, size=len(peruser)) |
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| 162 | if outfname != "-" : |
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| 163 | percent.display("%s...\n" % _("Generating receipts")) |
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| 164 | |
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| 165 | self.initPDF(logo) |
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| 166 | number = firstnumber |
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| 167 | for (name, values) in peruser.items() : |
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| 168 | number += self.pagePDF(number, name, values, unit, reason) |
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| 169 | if outfname != "-" : |
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| 170 | percent.oneMore() |
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| 171 | |
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| 172 | if number > firstnumber : |
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| 173 | self.endPDF(outfname) |
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| 174 | |
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| 175 | if outfname != "-" : |
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| 176 | percent.done() |
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| 177 | |
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| 178 | def main(self, arguments, options) : |
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| 179 | """Refunds jobs.""" |
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| 180 | if not hasRL : |
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| 181 | raise PyKotaToolError, "The ReportLab module is missing. Download it from http://www.reportlab.org" |
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| 182 | if not hasPIL : |
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| 183 | raise PyKotaToolError, "The Python Imaging Library is missing. Download it from http://www.pythonware.com/downloads" |
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| 184 | |
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| 185 | if not self.config.isAdmin : |
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| 186 | raise PyKotaCommandLineError, "%s : %s" % (pwd.getpwuid(os.geteuid())[0], _("You're not allowed to use this command.")) |
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| 187 | |
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| 188 | self.pagesize = getPageSize(options.pagesize) |
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| 189 | |
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| 190 | if (not options.reason) or (not options.reason.strip()) : |
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| 191 | raise PyKotaCommandLineError, _("Refunding for no reason is forbidden. Please use the --reason command line option.") |
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| 192 | |
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| 193 | extractonly = {} |
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| 194 | for filterexp in arguments : |
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| 195 | if filterexp.strip() : |
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| 196 | try : |
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| 197 | (filterkey, filtervalue) = [part.strip() for part in filterexp.split("=")] |
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| 198 | filterkey = filterkey.lower() |
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| 199 | if filterkey not in self.validfilterkeys : |
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| 200 | raise ValueError |
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| 201 | except ValueError : |
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| 202 | raise PyKotaCommandLineError, _("Invalid filter value [%s], see help.") % filterexp |
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| 203 | else : |
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| 204 | extractonly.update({ filterkey : filtervalue }) |
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| 205 | |
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| 206 | percent = Percent(self) |
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| 207 | outfname = options.output.strip().encode(sys.getfilesystemencoding()) |
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| 208 | if outfname != "-" : |
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| 209 | percent.display("%s..." % _("Extracting datas")) |
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| 210 | else : |
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| 211 | options.force = True |
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| 212 | self.printInfo(_("The PDF file containing the receipts will be sent to stdout. --force is assumed."), "warn") |
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| 213 | |
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| 214 | username = extractonly.get("username") |
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| 215 | if username : |
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| 216 | user = self.storage.getUser(username) |
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| 217 | else : |
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| 218 | user = None |
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| 219 | |
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| 220 | printername = extractonly.get("printername") |
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| 221 | if printername : |
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| 222 | printer = self.storage.getPrinter(printername) |
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| 223 | else : |
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| 224 | printer = None |
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| 225 | |
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| 226 | start = extractonly.get("start") |
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| 227 | end = extractonly.get("end") |
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| 228 | (start, end) = self.storage.cleanDates(start, end) |
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| 229 | |
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| 230 | jobs = self.storage.retrieveHistory(user=user, |
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| 231 | printer=printer, |
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| 232 | hostname=extractonly.get("hostname"), |
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| 233 | billingcode=extractonly.get("billingcode"), |
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| 234 | jobid=extractonly.get("jobid"), |
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| 235 | start=start, |
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| 236 | end=end, |
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| 237 | limit=0) |
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| 238 | |
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| 239 | peruser = {} |
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| 240 | nbjobs = 0 |
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| 241 | nbpages = 0 |
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| 242 | nbcredits = 0.0 |
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| 243 | percent.setSize(len(jobs)) |
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| 244 | if outfname != "-" : |
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| 245 | percent.display("\n") |
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| 246 | for job in jobs : |
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| 247 | if job.JobSize and (job.JobAction not in ("DENY", "CANCEL", "REFUND")) : |
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| 248 | if options.force : |
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| 249 | nbpages += job.JobSize |
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| 250 | nbcredits += job.JobPrice |
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| 251 | counters = peruser.setdefault(job.UserName, { "nbjobs" : 0, "nbpages" : 0, "nbcredits" : 0.0 }) |
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| 252 | counters["nbpages"] += job.JobSize |
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| 253 | counters["nbcredits"] += job.JobPrice |
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| 254 | job.refund(options.reason) |
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| 255 | counters["nbjobs"] += 1 |
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| 256 | nbjobs += 1 |
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| 257 | if outfname != "-" : |
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| 258 | percent.oneMore() |
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| 259 | else : |
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| 260 | print _("Date : %s") % str(job.JobDate)[:19] |
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| 261 | print _("Printer : %s") % job.PrinterName |
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| 262 | print _("User : %s") % job.UserName |
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| 263 | print _("JobId : %s") % job.JobId |
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| 264 | print _("Title : %s") % job.JobTitle |
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| 265 | if job.JobBillingCode : |
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| 266 | print _("Billing code : %s") % job.JobBillingCode |
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| 267 | print _("Pages : %i") % job.JobSize |
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| 268 | print _("Credits : %.3f") % job.JobPrice |
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| 269 | |
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| 270 | while True : |
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| 271 | answer = raw_input("\t%s ? " % _("Refund (Y/N)")).strip().upper() |
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| 272 | if answer == _("Y") : |
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| 273 | nbpages += job.JobSize |
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| 274 | nbcredits += job.JobPrice |
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| 275 | counters = peruser.setdefault(job.UserName, { "nbjobs" : 0, "nbpages" : 0, "nbcredits" : 0.0 }) |
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| 276 | counters["nbpages"] += job.JobSize |
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| 277 | counters["nbcredits"] += job.JobPrice |
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| 278 | job.refund(options.reason) |
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| 279 | counters["nbjobs"] += 1 |
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| 280 | nbjobs += 1 |
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| 281 | break |
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| 282 | elif answer == _("N") : |
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| 283 | break |
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| 284 | print |
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| 285 | if outfname != "-" : |
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| 286 | percent.done() |
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| 287 | self.genReceipts(peruser, |
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| 288 | options.logo.strip().encode(sys.getfilesystemencoding()), |
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| 289 | outfname, |
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| 290 | options.number, |
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| 291 | options.reason, |
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| 292 | options.unit or _("Credits")) |
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| 293 | if outfname != "-" : |
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| 294 | nbusers = len(peruser) |
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| 295 | print _("Refunded %(nbusers)i users for %(nbjobs)i jobs, %(nbpages)i pages and %(nbcredits).3f credits") \ |
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| 296 | % locals() |
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| 297 | |
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| 298 | if __name__ == "__main__" : |
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| 299 | parser = PyKotaOptionParser(description=_("Refunding tool for PyKota."), |
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| 300 | usage="pkrefund [options] [filterexpr]") |
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| 301 | parser.add_option("-f", "--force", |
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| 302 | dest="force", |
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| 303 | action="store_true", |
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| 304 | help=_("Doesn't ask for confirmation before refunding.")) |
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| 305 | parser.add_option("-l", "--logo", |
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| 306 | dest="logo", |
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| 307 | default=u"/usr/share/pykota/logos/pykota.jpeg", |
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| 308 | help=_("The image to use as a logo. The logo will be drawn at the center top of the page. The default logo is %default")) |
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| 309 | parser.add_option("-p", "--pagesize", |
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| 310 | type="string", |
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| 311 | action="callback", |
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| 312 | callback=checkandset_pagesize, |
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| 313 | dest="pagesize", |
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| 314 | default=u"A4", |
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| 315 | help=_("Set the size of the page. Most well known page sizes are recognized, like 'A4' or 'Letter' to name a few. The default page size is %default")) |
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| 316 | parser.add_option("-n", "--number", |
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| 317 | dest="number", |
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| 318 | type="int", |
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| 319 | action="callback", |
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| 320 | callback=checkandset_positiveint, |
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| 321 | default=1, |
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| 322 | help=_("Sets the number of the first receipt. This number will automatically be incremented for each receipt. The default value is %default")) |
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| 323 | parser.add_option("-o", "--output", |
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| 324 | dest="output", |
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| 325 | type="string", |
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| 326 | default=u"-", |
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| 327 | help=_("The name of the file to which the PDF receipts will be written. If not set or set to '%default', the PDF document will be sent to the standard output.")) |
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| 328 | parser.add_option("-r", "--reason", |
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| 329 | dest="reason", |
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| 330 | type="string", |
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| 331 | help=_("The reason why there was a refund.")) |
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| 332 | |
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| 333 | # TODO : due to Python's optparse.py bug #1498146 fixed in rev 46861 |
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| 334 | # TODO : we can't use 'default=_("Credits")' for this option |
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| 335 | parser.add_option("-u", "--unit", |
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| 336 | dest="unit", |
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| 337 | type="string", |
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| 338 | help=_("The name of the unit to use on the receipts. The default value is 'Credits' or its locale translation.")) |
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| 339 | |
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| 340 | parser.add_filterexpression("username", _("User's name")) |
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| 341 | parser.add_filterexpression("printername", _("Printer's name")) |
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| 342 | parser.add_filterexpression("hostname", _("Host's name")) |
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| 343 | parser.add_filterexpression("jobid", _("Job's id")) |
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| 344 | parser.add_filterexpression("billingcode", _("Job's billing code")) |
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| 345 | parser.add_filterexpression("start", _("Job's date of printing")) |
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| 346 | parser.add_filterexpression("end", _("Job's date of printing")) |
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| 347 | |
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| 348 | parser.add_example('--output /tmp/receipts.pdf jobid=503', |
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| 349 | _("This would refund all jobs which Id is 503. A confirmation would be asked for each job to refund, and a PDF file named /tmp/receipts.pdf would be created containing printable receipts. BEWARE of job ids rolling over if you reset CUPS' history.")) |
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| 350 | |
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| 351 | parser.add_example('--reason "Hardware problem" jobid=503 start=today-7', |
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| 352 | _("This would refund all jobs which id is 503 but which would have been printed during the past week. The reason would be marked as being an hardware problem.")) |
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| 353 | |
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| 354 | parser.add_example('--force username=jerome printername=HP2100', |
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| 355 | _("This would refund all jobs printed by user jerome on printer HP2100. No confirmation would be asked.")) |
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| 356 | |
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| 357 | parser.add_example('--force printername=HP2100 start=200602 end=yesterday', |
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| 358 | _("This would refund all jobs printed on printer HP2100 between February 1st 2006 and yesterday. No confirmation would be asked.")) |
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| 359 | |
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| 360 | (options, arguments) = parser.parse_args() |
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| 361 | run(parser, PKRefund) |
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