1 | #! /usr/bin/env python |
---|
2 | # -*- coding: UTF-8 -*- |
---|
3 | # |
---|
4 | # PyKota : Print Quotas for CUPS |
---|
5 | # |
---|
6 | # (c) 2003, 2004, 2005, 2006, 2007, 2008 Jerome Alet <alet@librelogiciel.com> |
---|
7 | # This program is free software: you can redistribute it and/or modify |
---|
8 | # it under the terms of the GNU General Public License as published by |
---|
9 | # the Free Software Foundation, either version 3 of the License, or |
---|
10 | # (at your option) any later version. |
---|
11 | # |
---|
12 | # This program is distributed in the hope that it will be useful, |
---|
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
15 | # GNU General Public License for more details. |
---|
16 | # |
---|
17 | # You should have received a copy of the GNU General Public License |
---|
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
---|
19 | # |
---|
20 | # $Id$ |
---|
21 | # |
---|
22 | # |
---|
23 | |
---|
24 | import os |
---|
25 | import sys |
---|
26 | import pwd |
---|
27 | |
---|
28 | import pykota.appinit |
---|
29 | from pykota.utils import * |
---|
30 | |
---|
31 | from pykota.errors import PyKotaCommandLineError |
---|
32 | from pykota.tool import Percent, PyKotaTool |
---|
33 | from pykota.storage import StoragePrinter |
---|
34 | |
---|
35 | from pkipplib import pkipplib |
---|
36 | |
---|
37 | __doc__ = N_("""pkprinters v%(__version__)s (c) %(__years__)s %(__author__)s |
---|
38 | |
---|
39 | A Printers Manager for PyKota. |
---|
40 | |
---|
41 | command line usage : |
---|
42 | |
---|
43 | pkprinters [options] printer1 printer2 printer3 ... printerN |
---|
44 | |
---|
45 | options : |
---|
46 | |
---|
47 | -v | --version Prints pkprinters's version number then exits. |
---|
48 | -h | --help Prints this message then exits. |
---|
49 | |
---|
50 | -a | --add Adds printers if they don't exist on the Quota |
---|
51 | Storage Server. If they exist, they are modified |
---|
52 | unless -s|--skipexisting is also used. |
---|
53 | |
---|
54 | -d | --delete Deletes printers from the quota storage. |
---|
55 | |
---|
56 | -D | --description d Adds a textual description to printers. |
---|
57 | |
---|
58 | -C | --cups Also modifies the DeviceURI in CUPS' printers.conf |
---|
59 | |
---|
60 | -c | --charge p[,j] Sets the price per page and per job to charge. |
---|
61 | Job price is optional. |
---|
62 | If both are to be set, separate them with a comma. |
---|
63 | Floating point and negative values are allowed. |
---|
64 | |
---|
65 | -g | --groups pg1[,pg2...] Adds or Remove the printer(s) to the printer |
---|
66 | groups pg1, pg2, etc... which must already exist. |
---|
67 | A printer group is just like a normal printer, |
---|
68 | only that it is usually unknown from the printing |
---|
69 | system. Create printer groups exactly the same |
---|
70 | way that you create printers, then add other |
---|
71 | printers to them with this option. |
---|
72 | Accounting is done on a printer and on all |
---|
73 | the printer groups it belongs to, quota checking |
---|
74 | is done on a printer and on all the printer groups |
---|
75 | it belongs to. |
---|
76 | If the --remove option below is not used, the |
---|
77 | default action is to add printers to the specified |
---|
78 | printer groups. |
---|
79 | |
---|
80 | -l | --list List informations about the printer(s) and the |
---|
81 | printers groups it is a member of. |
---|
82 | |
---|
83 | -r | --remove In combination with the --groups option above, |
---|
84 | remove printers from the specified printers groups. |
---|
85 | |
---|
86 | -s | --skipexisting In combination with the --add option above, tells |
---|
87 | pkprinters to not modify existing printers. |
---|
88 | |
---|
89 | -m | --maxjobsize s Sets the maximum job size allowed on the printer |
---|
90 | to s pages. |
---|
91 | |
---|
92 | -p | --passthrough Activate passthrough mode for the printer. In this |
---|
93 | mode, users are allowed to print without any impact |
---|
94 | on their quota or account balance. |
---|
95 | |
---|
96 | -n | --nopassthrough Deactivate passthrough mode for the printer. |
---|
97 | Without -p or -n, printers are created in |
---|
98 | normal mode, i.e. no passthrough. |
---|
99 | |
---|
100 | printer1 through printerN can contain wildcards if the --add option |
---|
101 | is not set. |
---|
102 | |
---|
103 | examples : |
---|
104 | |
---|
105 | $ pkprinters --add -D "HP Printer" --charge 0.05,0.1 hp2100 hp2200 hp8000 |
---|
106 | |
---|
107 | Will create three printers named hp2100, hp2200 and hp8000. |
---|
108 | Their price per page will be set at 0.05 unit, and their price |
---|
109 | per job will be set at 0.1 unit. Units are in your own currency, |
---|
110 | or whatever you want them to mean. |
---|
111 | All of their descriptions will be set to the string "HP Printer". |
---|
112 | If any of these printers already exists, it will also be modified |
---|
113 | unless the -s|--skipexisting command line option is also used. |
---|
114 | |
---|
115 | $ pkprinters --delete "*" |
---|
116 | |
---|
117 | This will completely delete all printers and associated quota information, |
---|
118 | as well as their job history. USE WITH CARE ! |
---|
119 | |
---|
120 | $ pkprinters --groups Laser,HP "hp*" |
---|
121 | |
---|
122 | This will put all printers which name matches "hp*" into printers groups |
---|
123 | Laser and HP, which MUST already exist. |
---|
124 | |
---|
125 | $ pkprinters --groups LexMark --remove hp2200 |
---|
126 | |
---|
127 | This will remove the hp2200 printer from the LexMark printer group. |
---|
128 | """) |
---|
129 | |
---|
130 | class PKPrinters(PyKotaTool) : |
---|
131 | """A class for a printers manager.""" |
---|
132 | def modifyPrinter(self, printer, charges, perpage, perjob, description, passthrough, nopassthrough, maxjobsize) : |
---|
133 | if charges : |
---|
134 | printer.setPrices(perpage, perjob) |
---|
135 | if description is not None : # NB : "" is allowed ! |
---|
136 | printer.setDescription(description) |
---|
137 | if nopassthrough : |
---|
138 | printer.setPassThrough(False) |
---|
139 | if passthrough : |
---|
140 | printer.setPassThrough(True) |
---|
141 | if maxjobsize is not None : |
---|
142 | printer.setMaxJobSize(maxjobsize) |
---|
143 | |
---|
144 | def managePrintersGroups(self, pgroups, printer, remove) : |
---|
145 | """Manage printer group membership.""" |
---|
146 | for pgroup in pgroups : |
---|
147 | if remove : |
---|
148 | pgroup.delPrinterFromGroup(printer) |
---|
149 | else : |
---|
150 | pgroup.addPrinterToGroup(printer) |
---|
151 | |
---|
152 | def getPrinterDeviceURI(self, printername) : |
---|
153 | """Returns the Device URI attribute for a particular printer.""" |
---|
154 | if not printername : |
---|
155 | return "" |
---|
156 | cups = pkipplib.CUPS() |
---|
157 | req = cups.newRequest(pkipplib.IPP_GET_PRINTER_ATTRIBUTES) |
---|
158 | req.operation["printer-uri"] = ("uri", cups.identifierToURI("printers", printername)) |
---|
159 | try : |
---|
160 | return cups.doRequest(req).printer["device-uri"][0][1] |
---|
161 | except : |
---|
162 | self.printInfo(_("Impossible to retrieve %(printername)s's DeviceURI") % locals(), "warn") |
---|
163 | return "" |
---|
164 | |
---|
165 | def isPrinterCaptured(self, printername=None, deviceuri=None) : |
---|
166 | """Returns True if the printer is already redirected through PyKota's backend, else False.""" |
---|
167 | if (deviceuri or self.getPrinterDeviceURI(printername)).find("cupspykota:") != -1 : |
---|
168 | return True |
---|
169 | else : |
---|
170 | return False |
---|
171 | |
---|
172 | def reroutePrinterThroughPyKota(self, printer) : |
---|
173 | """Reroutes a CUPS printer through PyKota.""" |
---|
174 | uri = self.getPrinterDeviceURI(printer.Name) |
---|
175 | if uri and (not self.isPrinterCaptured(deviceuri=uri)) : |
---|
176 | newuri = "cupspykota://%s" % uri |
---|
177 | os.system('lpadmin -p "%s" -v "%s"' % (printer.Name, newuri)) |
---|
178 | self.logdebug("Printer %s rerouted to %s" % (printer.Name, newuri)) |
---|
179 | |
---|
180 | def deroutePrinterFromPyKota(self, printer) : |
---|
181 | """Deroutes a PyKota printer through CUPS only.""" |
---|
182 | uri = self.getPrinterDeviceURI(printer.Name) |
---|
183 | if uri and self.isPrinterCaptured(deviceuri=uri) : |
---|
184 | newuri = uri.replace("cupspykota:", "") |
---|
185 | if newuri.startswith("//") : |
---|
186 | newuri = newuri[2:] |
---|
187 | os.system('lpadmin -p "%s" -v "%s"' % (printer.Name, newuri)) |
---|
188 | self.logdebug("Printer %s rerouted to %s" % (printer.Name, newuri)) |
---|
189 | |
---|
190 | def main(self, names, options) : |
---|
191 | """Manage printers.""" |
---|
192 | if not options["list"] : |
---|
193 | self.adminOnly() |
---|
194 | |
---|
195 | docups = options["cups"] |
---|
196 | |
---|
197 | if not options["list"] : |
---|
198 | percent = Percent(self) |
---|
199 | |
---|
200 | if not options["add"] : |
---|
201 | if not options["list"] : |
---|
202 | percent.display("%s..." % _("Extracting datas")) |
---|
203 | if not names : # NB : can't happen for --delete because it's catched earlier |
---|
204 | names = ["*"] |
---|
205 | printers = self.storage.getMatchingPrinters(",".join(names)) |
---|
206 | if not printers : |
---|
207 | if not options["list"] : |
---|
208 | percent.display("\n") |
---|
209 | raise PyKotaCommandLineError, _("There's no printer matching %s") % " ".join(names) |
---|
210 | if not options["list"] : |
---|
211 | percent.setSize(len(printers)) |
---|
212 | |
---|
213 | if options["list"] : |
---|
214 | for printer in printers : |
---|
215 | parents = ", ".join([p.Name for p in self.storage.getParentPrinters(printer)]) |
---|
216 | print "%s [%s] (%s + #*%s)" % \ |
---|
217 | (printer.Name, printer.Description, printer.PricePerJob, \ |
---|
218 | printer.PricePerPage) |
---|
219 | print " %s" % (_("Passthrough mode : %s") % ((printer.PassThrough and _("ON")) or _("OFF"))) |
---|
220 | print " %s" % (_("Maximum job size : %s") % ((printer.MaxJobSize and (_("%s pages") % printer.MaxJobSize)) or _("Unlimited"))) |
---|
221 | print " %s" % (_("Routed through PyKota : %s") % ((self.isPrinterCaptured(printer.Name) and _("YES")) or _("NO"))) |
---|
222 | if parents : |
---|
223 | print " %s %s" % (_("in"), parents) |
---|
224 | print |
---|
225 | elif options["delete"] : |
---|
226 | percent.display("\n%s..." % _("Deletion")) |
---|
227 | self.storage.deleteManyPrinters(printers) |
---|
228 | percent.display("\n") |
---|
229 | if docups : |
---|
230 | percent.display("%s...\n" % _("Rerouting printers to CUPS")) |
---|
231 | for printer in printers : |
---|
232 | self.deroutePrinterFromPyKota(printer) |
---|
233 | percent.oneMore() |
---|
234 | else : |
---|
235 | if options["groups"] : |
---|
236 | printersgroups = self.storage.getMatchingPrinters(options["groups"]) |
---|
237 | if not printersgroups : |
---|
238 | raise PyKotaCommandLineError, _("There's no printer matching %s") % " ".join(options["groups"].split(',')) |
---|
239 | else : |
---|
240 | printersgroups = [] |
---|
241 | |
---|
242 | if options["charge"] : |
---|
243 | try : |
---|
244 | charges = [float(part) for part in options["charge"].split(',', 1)] |
---|
245 | except ValueError : |
---|
246 | raise PyKotaCommandLineError, _("Invalid charge amount value %s") % options["charge"] |
---|
247 | else : |
---|
248 | if len(charges) > 2 : |
---|
249 | charges = charges[:2] |
---|
250 | if len(charges) != 2 : |
---|
251 | charges = [charges[0], None] |
---|
252 | (perpage, perjob) = charges |
---|
253 | else : |
---|
254 | charges = perpage = perjob = None |
---|
255 | |
---|
256 | if options["maxjobsize"] : |
---|
257 | try : |
---|
258 | maxjobsize = int(options["maxjobsize"]) |
---|
259 | if maxjobsize < 0 : |
---|
260 | raise ValueError |
---|
261 | except ValueError : |
---|
262 | raise PyKotaCommandLineError, _("Invalid maximum job size value %s") % options["maxjobsize"] |
---|
263 | else : |
---|
264 | maxjobsize = None |
---|
265 | |
---|
266 | description = options["description"] |
---|
267 | if description : |
---|
268 | description = description.strip() |
---|
269 | |
---|
270 | nopassthrough = options["nopassthrough"] |
---|
271 | passthrough = options["passthrough"] |
---|
272 | remove = options["remove"] |
---|
273 | skipexisting = options["skipexisting"] |
---|
274 | self.storage.beginTransaction() |
---|
275 | try : |
---|
276 | if options["add"] : |
---|
277 | percent.display("%s...\n" % _("Creation")) |
---|
278 | percent.setSize(len(names)) |
---|
279 | for pname in names : |
---|
280 | if self.isValidName(pname) : |
---|
281 | printer = StoragePrinter(self.storage, pname) |
---|
282 | self.modifyPrinter(printer, charges, perpage, perjob, \ |
---|
283 | description, passthrough, \ |
---|
284 | nopassthrough, maxjobsize) |
---|
285 | oldprinter = self.storage.addPrinter(printer) |
---|
286 | |
---|
287 | if docups : |
---|
288 | self.reroutePrinterThroughPyKota(printer) |
---|
289 | |
---|
290 | if oldprinter is not None : |
---|
291 | if skipexisting : |
---|
292 | self.logdebug(_("Printer %s already exists, skipping.") % pname) |
---|
293 | else : |
---|
294 | self.logdebug(_("Printer %s already exists, will be modified.") % pname) |
---|
295 | self.modifyPrinter(oldprinter, charges, \ |
---|
296 | perpage, perjob, description, \ |
---|
297 | passthrough, nopassthrough, \ |
---|
298 | maxjobsize) |
---|
299 | oldprinter.save() |
---|
300 | self.managePrintersGroups(printersgroups, oldprinter, remove) |
---|
301 | elif printersgroups : |
---|
302 | self.managePrintersGroups(printersgroups, \ |
---|
303 | self.storage.getPrinter(pname), \ |
---|
304 | remove) |
---|
305 | else : |
---|
306 | raise PyKotaCommandLineError, _("Invalid printer name %s") % pname |
---|
307 | percent.oneMore() |
---|
308 | else : |
---|
309 | percent.display("\n%s...\n" % _("Modification")) |
---|
310 | for printer in printers : |
---|
311 | self.modifyPrinter(printer, charges, perpage, perjob, \ |
---|
312 | description, passthrough, \ |
---|
313 | nopassthrough, maxjobsize) |
---|
314 | printer.save() |
---|
315 | self.managePrintersGroups(printersgroups, printer, remove) |
---|
316 | if docups : |
---|
317 | self.reroutePrinterThroughPyKota(printer) |
---|
318 | percent.oneMore() |
---|
319 | except : |
---|
320 | self.storage.rollbackTransaction() |
---|
321 | raise |
---|
322 | else : |
---|
323 | self.storage.commitTransaction() |
---|
324 | |
---|
325 | if not options["list"] : |
---|
326 | percent.done() |
---|
327 | |
---|
328 | if __name__ == "__main__" : |
---|
329 | retcode = 0 |
---|
330 | try : |
---|
331 | short_options = "hvaCc:D:dg:lrsnpm:" |
---|
332 | long_options = ["help", "version", "add", "cups", "charge=", "description=", \ |
---|
333 | "delete", "groups=", "list", "remove", \ |
---|
334 | "skipexisting", "passthrough", "nopassthrough", \ |
---|
335 | "maxjobsize="] |
---|
336 | |
---|
337 | # Initializes the command line tool |
---|
338 | manager = PKPrinters(doc=__doc__) |
---|
339 | manager.deferredInit() |
---|
340 | |
---|
341 | # parse and checks the command line |
---|
342 | (options, args) = manager.parseCommandline(sys.argv[1:], short_options, long_options) |
---|
343 | |
---|
344 | # sets long options |
---|
345 | options["help"] = options["h"] or options["help"] |
---|
346 | options["version"] = options["v"] or options["version"] |
---|
347 | options["add"] = options["a"] or options["add"] |
---|
348 | options["cups"] = options["C"] or options["cups"] |
---|
349 | options["charge"] = options["c"] or options["charge"] |
---|
350 | options["description"] = options["D"] or options["description"] |
---|
351 | options["delete"] = options["d"] or options["delete"] |
---|
352 | options["groups"] = options["g"] or options["groups"] |
---|
353 | options["list"] = options["l"] or options["list"] |
---|
354 | options["remove"] = options["r"] or options["remove"] |
---|
355 | options["skipexisting"] = options["s"] or options["skipexisting"] |
---|
356 | options["maxjobsize"] = options["m"] or options["maxjobsize"] |
---|
357 | options["passthrough"] = options["p"] or options["passthrough"] |
---|
358 | options["nopassthrough"] = options["n"] or options["nopassthrough"] |
---|
359 | |
---|
360 | if options["help"] : |
---|
361 | manager.display_usage_and_quit() |
---|
362 | elif options["version"] : |
---|
363 | manager.display_version_and_quit() |
---|
364 | elif (options["delete"] and (options["add"] or options["groups"] or options["charge"] or options["remove"] or options["description"])) \ |
---|
365 | or (options["skipexisting"] and not options["add"]) \ |
---|
366 | or (options["list"] and (options["add"] or options["delete"] or options["groups"] or options["charge"] or options["remove"] or options["description"])) \ |
---|
367 | or (options["passthrough"] and options["nopassthrough"]) \ |
---|
368 | or (options["remove"] and options["add"]) : |
---|
369 | raise PyKotaCommandLineError, _("incompatible options, see help.") |
---|
370 | elif options["remove"] and not options["groups"] : |
---|
371 | raise PyKotaCommandLineError, _("You have to pass printer groups names on the command line") |
---|
372 | elif (not args) and (options["add"] or options["delete"]) : |
---|
373 | raise PyKotaCommandLineError, _("You have to pass printer names on the command line") |
---|
374 | else : |
---|
375 | retcode = manager.main(args, options) |
---|
376 | except KeyboardInterrupt : |
---|
377 | logerr("\nInterrupted with Ctrl+C !\n") |
---|
378 | retcode = -3 |
---|
379 | except PyKotaCommandLineError, msg : |
---|
380 | logerr("%s : %s\n" % (sys.argv[0], msg)) |
---|
381 | retcode = -2 |
---|
382 | except SystemExit : |
---|
383 | pass |
---|
384 | except : |
---|
385 | try : |
---|
386 | manager.crashed("pkprinters failed") |
---|
387 | except : |
---|
388 | crashed("pkprinters failed") |
---|
389 | retcode = -1 |
---|
390 | |
---|
391 | try : |
---|
392 | manager.storage.close() |
---|
393 | except (TypeError, NameError, AttributeError) : |
---|
394 | pass |
---|
395 | |
---|
396 | sys.exit(retcode) |
---|