1 | #! /usr/bin/env python |
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2 | # -*- coding: ISO-8859-15 -*- |
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3 | |
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4 | # PyKota Printers Manager |
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5 | # |
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6 | # PyKota - Print Quotas for CUPS and LPRng |
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7 | # |
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8 | # (c) 2003, 2004, 2005, 2006 Jerome Alet <alet@librelogiciel.com> |
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9 | # This program is free software; you can redistribute it and/or modify |
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10 | # it under the terms of the GNU General Public License as published by |
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11 | # the Free Software Foundation; either version 2 of the License, or |
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12 | # (at your option) any later version. |
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13 | # |
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14 | # This program is distributed in the hope that it will be useful, |
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15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | # GNU General Public License for more details. |
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18 | # |
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19 | # You should have received a copy of the GNU General Public License |
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20 | # along with this program; if not, write to the Free Software |
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21 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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22 | # |
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23 | # $Id$ |
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24 | # |
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25 | # |
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26 | |
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27 | import os |
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28 | import sys |
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29 | import pwd |
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30 | |
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31 | from pykota.tool import PyKotaTool, PyKotaToolError, PyKotaCommandLineError, crashed, N_ |
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32 | from pykota.storage import StoragePrinter |
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33 | |
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34 | __doc__ = N_("""pkprinters v%(__version__)s (c) %(__years__)s %(__author__)s |
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35 | |
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36 | A Printers Manager for PyKota. |
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37 | |
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38 | command line usage : |
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39 | |
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40 | pkprinters [options] printer1 printer2 printer3 ... printerN |
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41 | |
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42 | options : |
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43 | |
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44 | -v | --version Prints pkprinters's version number then exits. |
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45 | -h | --help Prints this message then exits. |
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46 | |
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47 | -a | --add Adds printers if they don't exist on the Quota |
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48 | Storage Server. If they exist, they are modified |
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49 | unless -s|--skipexisting is also used. |
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50 | |
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51 | -d | --delete Deletes printers from the quota storage. |
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52 | |
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53 | -D | --description d Adds a textual description to printers. |
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54 | |
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55 | -c | --charge p[,j] Sets the price per page and per job to charge. |
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56 | Job price is optional. |
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57 | If both are to be set, separate them with a comma. |
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58 | Floating point and negative values are allowed. |
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59 | |
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60 | -g | --groups pg1[,pg2...] Adds or Remove the printer(s) to the printer |
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61 | groups pg1, pg2, etc... which must already exist. |
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62 | A printer group is just like a normal printer, |
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63 | only that it is usually unknown from the printing |
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64 | system. Create printer groups exactly the same |
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65 | way that you create printers, then add other |
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66 | printers to them with this option. |
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67 | Accounting is done on a printer and on all |
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68 | the printer groups it belongs to, quota checking |
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69 | is done on a printer and on all the printer groups |
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70 | it belongs to. |
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71 | If the --remove option below is not used, the |
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72 | default action is to add printers to the specified |
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73 | printer groups. |
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74 | |
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75 | -l | --list List informations about the printer(s) and the |
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76 | printers groups it is a member of. |
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77 | |
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78 | -r | --remove In combination with the --groups option above, |
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79 | remove printers from the specified printers groups. |
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80 | |
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81 | -s | --skipexisting In combination with the --add option above, tells |
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82 | pkprinters to not modify existing printers. |
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83 | |
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84 | -m | --maxjobsize s Sets the maximum job size allowed on the printer |
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85 | to s pages. |
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86 | |
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87 | -p | --passthrough Activate passthrough mode for the printer. In this |
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88 | mode, users are allowed to print without any impact |
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89 | on their quota or account balance. |
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90 | |
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91 | -n | --nopassthrough Deactivate passthrough mode for the printer. |
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92 | Without -p or -n, printers are created in |
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93 | normal mode, i.e. no passthrough. |
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94 | |
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95 | printer1 through printerN can contain wildcards if the --add option |
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96 | is not set. |
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97 | |
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98 | examples : |
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99 | |
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100 | $ pkprinters --add -D "HP Printer" --charge 0.05,0.1 hp2100 hp2200 hp8000 |
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101 | |
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102 | Will create three printers named hp2100, hp2200 and hp8000. |
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103 | Their price per page will be set at 0.05 unit, and their price |
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104 | per job will be set at 0.1 unit. Units are in your own currency, |
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105 | or whatever you want them to mean. |
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106 | All of their descriptions will be set to the string "HP Printer". |
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107 | If any of these printers already exists, it will also be modified |
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108 | unless the -s|--skipexisting command line option is also used. |
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109 | |
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110 | $ pkprinters --delete "*" |
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111 | |
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112 | This will completely delete all printers and associated quota information, |
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113 | as well as their job history. USE WITH CARE ! |
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114 | |
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115 | $ pkprinters --groups Laser,HP "hp*" |
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116 | |
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117 | This will put all printers which name matches "hp*" into printers groups |
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118 | Laser and HP, which MUST already exist. |
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119 | |
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120 | $ pkprinters --groups LexMark --remove hp2200 |
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121 | |
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122 | This will remove the hp2200 printer from the LexMark printer group. |
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123 | """) |
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124 | |
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125 | class PKPrinters(PyKotaTool) : |
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126 | """A class for a printers manager.""" |
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127 | def modifyPrinter(self, printer, charges, perpage, perjob, description, passthrough, nopassthrough, maxjobsize) : |
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128 | if charges : |
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129 | printer.setPrices(perpage, perjob) |
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130 | if description is not None : # NB : "" is allowed ! |
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131 | printer.setDescription(description) |
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132 | if nopassthrough : |
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133 | printer.setPassThrough(False) |
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134 | if passthrough : |
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135 | printer.setPassThrough(True) |
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136 | if maxjobsize is not None : |
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137 | printer.setMaxJobSize(maxjobsize) |
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138 | |
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139 | def managePrintersGroups(self, pgroups, printer, remove) : |
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140 | """Manage printer group membership.""" |
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141 | for pgroup in pgroups : |
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142 | if remove : |
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143 | pgroup.delPrinterFromGroup(printer) |
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144 | else : |
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145 | pgroup.addPrinterToGroup(printer) |
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146 | |
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147 | def main(self, names, options) : |
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148 | """Manage printers.""" |
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149 | if (not self.config.isAdmin) and (not options["list"]) : |
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150 | raise PyKotaCommandLineError, "%s : %s" % (pwd.getpwuid(os.geteuid())[0], _("You're not allowed to use this command.")) |
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151 | |
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152 | if not options["add"] : |
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153 | if not options["list"] : |
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154 | self.display(_("Extracting datas...")) |
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155 | if not names : # NB : can't happen for --delete because it's catched earlier |
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156 | names = ["*"] |
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157 | printers = self.storage.getMatchingPrinters(",".join(names)) |
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158 | if not printers : |
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159 | raise PyKotaCommandLineError, _("There's no printer matching %s") % " ".join(names) |
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160 | |
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161 | if options["list"] : |
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162 | for printer in printers : |
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163 | parents = ", ".join([p.Name for p in self.storage.getParentPrinters(printer)]) |
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164 | print "%s [%s] (%s + #*%s)" % \ |
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165 | (printer.Name, printer.Description, printer.PricePerJob, \ |
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166 | printer.PricePerPage) |
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167 | print " %s" % (_("Passthrough mode : %s") % ((printer.PassThrough and _("ON")) or _("OFF"))) |
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168 | print " %s" % (_("Maximum job size : %s") % ((printer.MaxJobSize and (_("%s pages") % printer.MaxJobSize)) or _("Unlimited"))) |
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169 | if parents : |
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170 | print " %s %s" % (_("in"), parents) |
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171 | print |
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172 | elif options["delete"] : |
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173 | self.display("\n%s..." % _("Deletion")) |
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174 | self.storage.deleteManyPrinters(printers) |
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175 | self.display("\n") |
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176 | else : |
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177 | if options["groups"] : |
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178 | printersgroups = self.storage.getMatchingPrinters(options["groups"]) |
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179 | if not printersgroups : |
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180 | raise PyKotaCommandLineError, _("There's no printer matching %s") % " ".join(options["groups"].split(',')) |
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181 | else : |
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182 | printersgroups = [] |
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183 | |
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184 | if options["charge"] : |
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185 | try : |
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186 | charges = [float(part) for part in options["charge"].split(',', 1)] |
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187 | except ValueError : |
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188 | raise PyKotaCommandLineError, _("Invalid charge amount value %s") % options["charge"] |
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189 | else : |
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190 | if len(charges) > 2 : |
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191 | charges = charges[:2] |
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192 | if len(charges) != 2 : |
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193 | charges = [charges[0], None] |
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194 | (perpage, perjob) = charges |
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195 | else : |
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196 | charges = perpage = perjob = None |
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197 | |
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198 | if options["maxjobsize"] : |
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199 | try : |
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200 | maxjobsize = int(options["maxjobsize"]) |
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201 | if maxjobsize < 0 : |
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202 | raise ValueError |
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203 | except ValueError : |
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204 | raise PyKotaCommandLineError, _("Invalid maximum job size value %s") % options["maxjobsize"] |
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205 | else : |
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206 | maxjobsize = None |
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207 | |
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208 | description = options["description"] |
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209 | if description : |
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210 | description = description.strip() |
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211 | |
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212 | nopassthrough = options["nopassthrough"] |
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213 | passthrough = options["passthrough"] |
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214 | remove = options["remove"] |
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215 | skipexisting = options["skipexisting"] |
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216 | self.storage.beginTransaction() |
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217 | try : |
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218 | if options["add"] : |
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219 | self.display("%s...\n" % _("Creation")) |
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220 | nbtotal = len(names) |
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221 | for i in range(nbtotal) : |
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222 | pname = names[i] |
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223 | if self.isValidName(pname) : |
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224 | printer = StoragePrinter(self.storage, pname) |
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225 | self.modifyPrinter(printer, charges, perpage, perjob,\ |
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226 | description, passthrough, \ |
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227 | nopassthrough, maxjobsize) |
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228 | oldprinter = self.storage.addPrinter(printer) |
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229 | if oldprinter is not None : |
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230 | if skipexisting : |
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231 | self.logdebug(_("Printer %s already exists, skipping.") % pname) |
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232 | else : |
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233 | self.logdebug(_("Printer %s already exists, will be modified.") % pname) |
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234 | self.modifyPrinter(oldprinter, charges, \ |
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235 | perpage, perjob, description, \ |
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236 | passthrough, nopassthrough, \ |
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237 | maxjobsize) |
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238 | oldprinter.save() |
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239 | self.managePrintersGroups(printersgroups, oldprinter, remove) |
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240 | elif printersgroups : |
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241 | self.managePrintersGroups(printersgroups, \ |
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242 | self.storage.getPrinter(pname), \ |
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243 | remove) |
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244 | else : |
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245 | raise PyKotaCommandLineError, _("Invalid printer name %s") % pname |
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246 | percent = 100.0 * float(i) / float(nbtotal) |
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247 | self.display("\r%.02f%%" % percent) |
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248 | else : |
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249 | self.display("\n%s...\n" % _("Modification")) |
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250 | nbtotal = len(printers) |
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251 | for i in range(nbtotal) : |
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252 | printer = printers[i] |
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253 | self.modifyPrinter(printer, charges, perpage, perjob, \ |
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254 | description, passthrough, \ |
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255 | nopassthrough, maxjobsize) |
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256 | printer.save() |
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257 | self.managePrintersGroups(printersgroups, printer, remove) |
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258 | percent = 100.0 * float(i) / float(nbtotal) |
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259 | self.display("\r%.02f%%" % percent) |
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260 | except : |
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261 | self.storage.rollbackTransaction() |
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262 | raise |
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263 | else : |
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264 | self.storage.commitTransaction() |
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265 | if not options["list"] : |
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266 | self.done() |
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267 | |
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268 | if __name__ == "__main__" : |
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269 | retcode = 0 |
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270 | try : |
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271 | short_options = "hvac:D:dg:lrsnpm:" |
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272 | long_options = ["help", "version", "add", "charge=", "description=", \ |
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273 | "delete", "groups=", "list", "remove", \ |
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274 | "skipexisting", "passthrough", "nopassthrough", \ |
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275 | "maxjobsize="] |
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276 | |
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277 | # Initializes the command line tool |
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278 | manager = PKPrinters(doc=__doc__) |
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279 | manager.deferredInit() |
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280 | |
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281 | # parse and checks the command line |
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282 | (options, args) = manager.parseCommandline(sys.argv[1:], short_options, long_options) |
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283 | |
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284 | # sets long options |
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285 | options["help"] = options["h"] or options["help"] |
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286 | options["version"] = options["v"] or options["version"] |
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287 | options["add"] = options["a"] or options["add"] |
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288 | options["charge"] = options["c"] or options["charge"] |
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289 | options["description"] = options["D"] or options["description"] |
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290 | options["delete"] = options["d"] or options["delete"] |
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291 | options["groups"] = options["g"] or options["groups"] |
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292 | options["list"] = options["l"] or options["list"] |
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293 | options["remove"] = options["r"] or options["remove"] |
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294 | options["skipexisting"] = options["s"] or options["skipexisting"] |
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295 | options["maxjobsize"] = options["m"] or options["maxjobsize"] |
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296 | options["passthrough"] = options["p"] or options["passthrough"] |
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297 | options["nopassthrough"] = options["n"] or options["nopassthrough"] |
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298 | |
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299 | if options["help"] : |
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300 | manager.display_usage_and_quit() |
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301 | elif options["version"] : |
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302 | manager.display_version_and_quit() |
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303 | elif (options["delete"] and (options["add"] or options["groups"] or options["charge"] or options["remove"] or options["description"])) \ |
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304 | or (options["skipexisting"] and not options["add"]) \ |
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305 | or (options["list"] and (options["add"] or options["delete"] or options["groups"] or options["charge"] or options["remove"] or options["description"])) \ |
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306 | or (options["passthrough"] and options["nopassthrough"]) \ |
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307 | or (options["remove"] and options["add"]) : |
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308 | raise PyKotaCommandLineError, _("incompatible options, see help.") |
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309 | elif options["remove"] and not options["groups"] : |
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310 | raise PyKotaCommandLineError, _("You have to pass printer groups names on the command line") |
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311 | elif (not args) and (options["add"] or options["delete"]) : |
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312 | raise PyKotaCommandLineError, _("You have to pass printer names on the command line") |
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313 | else : |
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314 | retcode = manager.main(args, options) |
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315 | except KeyboardInterrupt : |
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316 | sys.stderr.write("\nInterrupted with Ctrl+C !\n") |
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317 | retcode = -3 |
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318 | except PyKotaCommandLineError, msg : |
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319 | sys.stderr.write("%s : %s\n" % (sys.argv[0], msg)) |
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320 | retcode = -2 |
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321 | except SystemExit : |
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322 | pass |
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323 | except : |
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324 | try : |
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325 | manager.crashed("pkprinters failed") |
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326 | except : |
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327 | crashed("pkprinters failed") |
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328 | retcode = -1 |
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329 | |
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330 | try : |
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331 | manager.storage.close() |
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332 | except (TypeError, NameError, AttributeError) : |
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333 | pass |
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334 | |
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335 | sys.exit(retcode) |
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