source: vendor/3.5.7/source3/printing/print_cups.c

Last change on this file was 478, checked in by Silvan Scherrer, 15 years ago

Samba 3.5: vendor update to 3.5.4
File size: 44.3 KB
Line 
1/*
2 * Support code for the Common UNIX Printing System ("CUPS")
3 *
4 * Copyright 1999-2003 by Michael R Sweet.
5 * Copyright 2008 Jeremy Allison.
6 *
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
21/*
22 * JRA. Converted to utf8 pull/push.
23 */
24
25#include "includes.h"
26#include "printing.h"
27
28#ifdef HAVE_CUPS
29#include <cups/cups.h>
30#include <cups/language.h>
31
32static SIG_ATOMIC_T gotalarm;
33
34/***************************************************************
35 Signal function to tell us we timed out.
36****************************************************************/
37
38static void gotalarm_sig(void)
39{
40 gotalarm = 1;
41}
42
43extern userdom_struct current_user_info;
44
45/*
46 * 'cups_passwd_cb()' - The CUPS password callback...
47 */
48
49static const char * /* O - Password or NULL */
50cups_passwd_cb(const char *prompt) /* I - Prompt */
51{
52 /*
53 * Always return NULL to indicate that no password is available...
54 */
55
56 return (NULL);
57}
58
59static http_t *cups_connect(TALLOC_CTX *frame)
60{
61 http_t *http = NULL;
62 char *server = NULL, *p = NULL;
63 int port;
64 int timeout = lp_cups_connection_timeout();
65 size_t size;
66
67 if (lp_cups_server() != NULL && strlen(lp_cups_server()) > 0) {
68 if (!push_utf8_talloc(frame, &server, lp_cups_server(), &size)) {
69 return NULL;
70 }
71 } else {
72 server = talloc_strdup(frame,cupsServer());
73 }
74 if (!server) {
75 return NULL;
76 }
77
78 p = strchr(server, ':');
79 if (p) {
80 port = atoi(p+1);
81 *p = '\0';
82 } else {
83 port = ippPort();
84 }
85
86 DEBUG(10, ("connecting to cups server %s:%d\n",
87 server, port));
88
89 gotalarm = 0;
90
91 if (timeout) {
92 CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
93 alarm(timeout);
94 }
95
96#ifdef HAVE_HTTPCONNECTENCRYPT
97 http = httpConnectEncrypt(server, port, lp_cups_encrypt());
98#else
99 http = httpConnect(server, port);
100#endif
101
102
103 CatchSignal(SIGALRM, SIGNAL_CAST SIG_IGN);
104 alarm(0);
105
106 if (http == NULL) {
107 DEBUG(0,("Unable to connect to CUPS server %s:%d - %s\n",
108 server, port, strerror(errno)));
109 }
110
111 return http;
112}
113
114static void send_pcap_info(const char *name, const char *info, void *pd)
115{
116 int fd = *(int *)pd;
117 size_t namelen = name ? strlen(name)+1 : 0;
118 size_t infolen = info ? strlen(info)+1 : 0;
119
120 DEBUG(11,("send_pcap_info: writing namelen %u\n", (unsigned int)namelen));
121 if (sys_write(fd, &namelen, sizeof(namelen)) != sizeof(namelen)) {
122 DEBUG(10,("send_pcap_info: namelen write failed %s\n",
123 strerror(errno)));
124 return;
125 }
126 DEBUG(11,("send_pcap_info: writing infolen %u\n", (unsigned int)infolen));
127 if (sys_write(fd, &infolen, sizeof(infolen)) != sizeof(infolen)) {
128 DEBUG(10,("send_pcap_info: infolen write failed %s\n",
129 strerror(errno)));
130 return;
131 }
132 if (namelen) {
133 DEBUG(11,("send_pcap_info: writing name %s\n", name));
134 if (sys_write(fd, name, namelen) != namelen) {
135 DEBUG(10,("send_pcap_info: name write failed %s\n",
136 strerror(errno)));
137 return;
138 }
139 }
140 if (infolen) {
141 DEBUG(11,("send_pcap_info: writing info %s\n", info));
142 if (sys_write(fd, info, infolen) != infolen) {
143 DEBUG(10,("send_pcap_info: info write failed %s\n",
144 strerror(errno)));
145 return;
146 }
147 }
148}
149
150static bool cups_cache_reload_async(int fd)
151{
152 TALLOC_CTX *frame = talloc_stackframe();
153 struct pcap_cache *tmp_pcap_cache = NULL;
154 http_t *http = NULL; /* HTTP connection to server */
155 ipp_t *request = NULL, /* IPP Request */
156 *response = NULL; /* IPP Response */
157 ipp_attribute_t *attr; /* Current attribute */
158 cups_lang_t *language = NULL; /* Default language */
159 char *name, /* printer-name attribute */
160 *info; /* printer-info attribute */
161 static const char *requested[] =/* Requested attributes */
162 {
163 "printer-name",
164 "printer-info"
165 };
166 bool ret = False;
167 size_t size;
168
169 DEBUG(5, ("reloading cups printcap cache\n"));
170
171 /*
172 * Make sure we don't ask for passwords...
173 */
174
175 cupsSetPasswordCB(cups_passwd_cb);
176
177 /*
178 * Try to connect to the server...
179 */
180
181 if ((http = cups_connect(frame)) == NULL) {
182 goto out;
183 }
184
185 /*
186 * Build a CUPS_GET_PRINTERS request, which requires the following
187 * attributes:
188 *
189 * attributes-charset
190 * attributes-natural-language
191 * requested-attributes
192 */
193
194 request = ippNew();
195
196 request->request.op.operation_id = CUPS_GET_PRINTERS;
197 request->request.op.request_id = 1;
198
199 language = cupsLangDefault();
200
201 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
202 "attributes-charset", NULL, "utf-8");
203
204 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
205 "attributes-natural-language", NULL, language->language);
206
207 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
208 "requested-attributes",
209 (sizeof(requested) / sizeof(requested[0])),
210 NULL, requested);
211
212 /*
213 * Do the request and get back a response...
214 */
215
216 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
217 DEBUG(0,("Unable to get printer list - %s\n",
218 ippErrorString(cupsLastError())));
219 goto out;
220 }
221
222 for (attr = response->attrs; attr != NULL;) {
223 /*
224 * Skip leading attributes until we hit a printer...
225 */
226
227 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
228 attr = attr->next;
229
230 if (attr == NULL)
231 break;
232
233 /*
234 * Pull the needed attributes from this printer...
235 */
236
237 name = NULL;
238 info = NULL;
239
240 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
241 if (strcmp(attr->name, "printer-name") == 0 &&
242 attr->value_tag == IPP_TAG_NAME) {
243 if (!pull_utf8_talloc(frame,
244 &name,
245 attr->values[0].string.text,
246 &size)) {
247 goto out;
248 }
249 }
250
251 if (strcmp(attr->name, "printer-info") == 0 &&
252 attr->value_tag == IPP_TAG_TEXT) {
253 if (!pull_utf8_talloc(frame,
254 &info,
255 attr->values[0].string.text,
256 &size)) {
257 goto out;
258 }
259 }
260
261 attr = attr->next;
262 }
263
264 /*
265 * See if we have everything needed...
266 */
267
268 if (name == NULL)
269 break;
270
271 if (!pcap_cache_add_specific(&tmp_pcap_cache, name, info)) {
272 goto out;
273 }
274 }
275
276 ippDelete(response);
277 response = NULL;
278
279 /*
280 * Build a CUPS_GET_CLASSES request, which requires the following
281 * attributes:
282 *
283 * attributes-charset
284 * attributes-natural-language
285 * requested-attributes
286 */
287
288 request = ippNew();
289
290 request->request.op.operation_id = CUPS_GET_CLASSES;
291 request->request.op.request_id = 1;
292
293 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
294 "attributes-charset", NULL, "utf-8");
295
296 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
297 "attributes-natural-language", NULL, language->language);
298
299 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
300 "requested-attributes",
301 (sizeof(requested) / sizeof(requested[0])),
302 NULL, requested);
303
304 /*
305 * Do the request and get back a response...
306 */
307
308 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
309 DEBUG(0,("Unable to get printer list - %s\n",
310 ippErrorString(cupsLastError())));
311 goto out;
312 }
313
314 for (attr = response->attrs; attr != NULL;) {
315 /*
316 * Skip leading attributes until we hit a printer...
317 */
318
319 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
320 attr = attr->next;
321
322 if (attr == NULL)
323 break;
324
325 /*
326 * Pull the needed attributes from this printer...
327 */
328
329 name = NULL;
330 info = NULL;
331
332 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
333 if (strcmp(attr->name, "printer-name") == 0 &&
334 attr->value_tag == IPP_TAG_NAME) {
335 if (!pull_utf8_talloc(frame,
336 &name,
337 attr->values[0].string.text,
338 &size)) {
339 goto out;
340 }
341 }
342
343 if (strcmp(attr->name, "printer-info") == 0 &&
344 attr->value_tag == IPP_TAG_TEXT) {
345 if (!pull_utf8_talloc(frame,
346 &info,
347 attr->values[0].string.text,
348 &size)) {
349 goto out;
350 }
351 }
352
353 attr = attr->next;
354 }
355
356 /*
357 * See if we have everything needed...
358 */
359
360 if (name == NULL)
361 break;
362
363 if (!pcap_cache_add_specific(&tmp_pcap_cache, name, info)) {
364 goto out;
365 }
366 }
367
368 ret = True;
369
370 out:
371 if (response)
372 ippDelete(response);
373
374 if (language)
375 cupsLangFree(language);
376
377 if (http)
378 httpClose(http);
379
380 /* Send all the entries up the pipe. */
381 if (tmp_pcap_cache) {
382 pcap_printer_fn_specific(tmp_pcap_cache,
383 send_pcap_info,
384 (void *)&fd);
385
386 pcap_cache_destroy_specific(&tmp_pcap_cache);
387 }
388 TALLOC_FREE(frame);
389 return ret;
390}
391
392static struct pcap_cache *local_pcap_copy;
393struct fd_event *cache_fd_event;
394
395static bool cups_pcap_load_async(int *pfd)
396{
397 int fds[2];
398 pid_t pid;
399
400 *pfd = -1;
401
402 if (cache_fd_event) {
403 DEBUG(3,("cups_pcap_load_async: already waiting for "
404 "a refresh event\n" ));
405 return false;
406 }
407
408 DEBUG(5,("cups_pcap_load_async: asynchronously loading cups printers\n"));
409
410 if (pipe(fds) == -1) {
411 return false;
412 }
413
414 pid = sys_fork();
415 if (pid == (pid_t)-1) {
416 DEBUG(10,("cups_pcap_load_async: fork failed %s\n",
417 strerror(errno) ));
418 close(fds[0]);
419 close(fds[1]);
420 return false;
421 }
422
423 if (pid) {
424 DEBUG(10,("cups_pcap_load_async: child pid = %u\n",
425 (unsigned int)pid ));
426 /* Parent. */
427 close(fds[1]);
428 *pfd = fds[0];
429 return true;
430 }
431
432 /* Child. */
433
434 close_all_print_db();
435
436 if (!NT_STATUS_IS_OK(reinit_after_fork(smbd_messaging_context(),
437 smbd_event_context(), true))) {
438 DEBUG(0,("cups_pcap_load_async: reinit_after_fork() failed\n"));
439 smb_panic("cups_pcap_load_async: reinit_after_fork() failed");
440 }
441
442 close(fds[0]);
443 cups_cache_reload_async(fds[1]);
444 close(fds[1]);
445 _exit(0);
446}
447
448static void cups_async_callback(struct event_context *event_ctx,
449 struct fd_event *event,
450 uint16 flags,
451 void *p)
452{
453 TALLOC_CTX *frame = talloc_stackframe();
454 int fd = *(int *)p;
455 struct pcap_cache *tmp_pcap_cache = NULL;
456
457 DEBUG(5,("cups_async_callback: callback received for printer data. "
458 "fd = %d\n", fd));
459
460 while (1) {
461 char *name = NULL, *info = NULL;
462 size_t namelen = 0, infolen = 0;
463 ssize_t ret = -1;
464
465 ret = sys_read(fd, &namelen, sizeof(namelen));
466 if (ret == 0) {
467 /* EOF */
468 break;
469 }
470 if (ret != sizeof(namelen)) {
471 DEBUG(10,("cups_async_callback: namelen read failed %d %s\n",
472 errno, strerror(errno)));
473 break;
474 }
475
476 DEBUG(11,("cups_async_callback: read namelen %u\n",
477 (unsigned int)namelen));
478
479 ret = sys_read(fd, &infolen, sizeof(infolen));
480 if (ret == 0) {
481 /* EOF */
482 break;
483 }
484 if (ret != sizeof(infolen)) {
485 DEBUG(10,("cups_async_callback: infolen read failed %s\n",
486 strerror(errno)));
487 break;
488 }
489
490 DEBUG(11,("cups_async_callback: read infolen %u\n",
491 (unsigned int)infolen));
492
493 if (namelen) {
494 name = TALLOC_ARRAY(frame, char, namelen);
495 if (!name) {
496 break;
497 }
498 ret = sys_read(fd, name, namelen);
499 if (ret == 0) {
500 /* EOF */
501 break;
502 }
503 if (ret != namelen) {
504 DEBUG(10,("cups_async_callback: name read failed %s\n",
505 strerror(errno)));
506 break;
507 }
508 DEBUG(11,("cups_async_callback: read name %s\n",
509 name));
510 } else {
511 name = NULL;
512 }
513 if (infolen) {
514 info = TALLOC_ARRAY(frame, char, infolen);
515 if (!info) {
516 break;
517 }
518 ret = sys_read(fd, info, infolen);
519 if (ret == 0) {
520 /* EOF */
521 break;
522 }
523 if (ret != infolen) {
524 DEBUG(10,("cups_async_callback: info read failed %s\n",
525 strerror(errno)));
526 break;
527 }
528 DEBUG(11,("cups_async_callback: read info %s\n",
529 info));
530 } else {
531 info = NULL;
532 }
533
534 /* Add to our local pcap cache. */
535 pcap_cache_add_specific(&tmp_pcap_cache, name, info);
536 TALLOC_FREE(name);
537 TALLOC_FREE(info);
538 }
539
540 TALLOC_FREE(frame);
541 if (tmp_pcap_cache) {
542 /* We got a namelist, replace our local cache. */
543 pcap_cache_destroy_specific(&local_pcap_copy);
544 local_pcap_copy = tmp_pcap_cache;
545
546 /* And the systemwide pcap cache. */
547 pcap_cache_replace(local_pcap_copy);
548 } else {
549 DEBUG(2,("cups_async_callback: failed to read a new "
550 "printer list\n"));
551 }
552 close(fd);
553 TALLOC_FREE(p);
554 TALLOC_FREE(cache_fd_event);
555}
556
557bool cups_cache_reload(void)
558{
559 int *p_pipe_fd = TALLOC_P(NULL, int);
560
561 if (!p_pipe_fd) {
562 return false;
563 }
564
565 *p_pipe_fd = -1;
566
567 /* Set up an async refresh. */
568 if (!cups_pcap_load_async(p_pipe_fd)) {
569 return false;
570 }
571 if (!local_pcap_copy) {
572 /* We have no local cache, wait directly for
573 * async refresh to complete.
574 */
575 DEBUG(10,("cups_cache_reload: sync read on fd %d\n",
576 *p_pipe_fd ));
577
578 cups_async_callback(smbd_event_context(),
579 NULL,
580 EVENT_FD_READ,
581 (void *)p_pipe_fd);
582 if (!local_pcap_copy) {
583 return false;
584 }
585 } else {
586 /* Replace the system cache with our
587 * local copy. */
588 pcap_cache_replace(local_pcap_copy);
589
590 DEBUG(10,("cups_cache_reload: async read on fd %d\n",
591 *p_pipe_fd ));
592
593 /* Trigger an event when the pipe can be read. */
594 cache_fd_event = event_add_fd(smbd_event_context(),
595 NULL, *p_pipe_fd,
596 EVENT_FD_READ,
597 cups_async_callback,
598 (void *)p_pipe_fd);
599 if (!cache_fd_event) {
600 close(*p_pipe_fd);
601 TALLOC_FREE(p_pipe_fd);
602 return false;
603 }
604 }
605 return true;
606}
607
608/*
609 * 'cups_job_delete()' - Delete a job.
610 */
611
612static int cups_job_delete(const char *sharename, const char *lprm_command, struct printjob *pjob)
613{
614 TALLOC_CTX *frame = talloc_stackframe();
615 int ret = 1; /* Return value */
616 http_t *http = NULL; /* HTTP connection to server */
617 ipp_t *request = NULL, /* IPP Request */
618 *response = NULL; /* IPP Response */
619 cups_lang_t *language = NULL; /* Default language */
620 char *user = NULL;
621 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
622 size_t size;
623
624 DEBUG(5,("cups_job_delete(%s, %p (%d))\n", sharename, pjob, pjob->sysjob));
625
626 /*
627 * Make sure we don't ask for passwords...
628 */
629
630 cupsSetPasswordCB(cups_passwd_cb);
631
632 /*
633 * Try to connect to the server...
634 */
635
636 if ((http = cups_connect(frame)) == NULL) {
637 goto out;
638 }
639
640 /*
641 * Build an IPP_CANCEL_JOB request, which requires the following
642 * attributes:
643 *
644 * attributes-charset
645 * attributes-natural-language
646 * job-uri
647 * requesting-user-name
648 */
649
650 request = ippNew();
651
652 request->request.op.operation_id = IPP_CANCEL_JOB;
653 request->request.op.request_id = 1;
654
655 language = cupsLangDefault();
656
657 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
658 "attributes-charset", NULL, "utf-8");
659
660 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
661 "attributes-natural-language", NULL, language->language);
662
663 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
664
665 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
666
667 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
668 goto out;
669 }
670
671 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
672 NULL, user);
673
674 /*
675 * Do the request and get back a response...
676 */
677
678 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
679 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
680 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
681 ippErrorString(cupsLastError())));
682 } else {
683 ret = 0;
684 }
685 } else {
686 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
687 ippErrorString(cupsLastError())));
688 }
689
690 out:
691 if (response)
692 ippDelete(response);
693
694 if (language)
695 cupsLangFree(language);
696
697 if (http)
698 httpClose(http);
699
700 TALLOC_FREE(frame);
701 return ret;
702}
703
704
705/*
706 * 'cups_job_pause()' - Pause a job.
707 */
708
709static int cups_job_pause(int snum, struct printjob *pjob)
710{
711 TALLOC_CTX *frame = talloc_stackframe();
712 int ret = 1; /* Return value */
713 http_t *http = NULL; /* HTTP connection to server */
714 ipp_t *request = NULL, /* IPP Request */
715 *response = NULL; /* IPP Response */
716 cups_lang_t *language = NULL; /* Default language */
717 char *user = NULL;
718 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
719 size_t size;
720
721 DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
722
723 /*
724 * Make sure we don't ask for passwords...
725 */
726
727 cupsSetPasswordCB(cups_passwd_cb);
728
729 /*
730 * Try to connect to the server...
731 */
732
733 if ((http = cups_connect(frame)) == NULL) {
734 goto out;
735 }
736
737 /*
738 * Build an IPP_HOLD_JOB request, which requires the following
739 * attributes:
740 *
741 * attributes-charset
742 * attributes-natural-language
743 * job-uri
744 * requesting-user-name
745 */
746
747 request = ippNew();
748
749 request->request.op.operation_id = IPP_HOLD_JOB;
750 request->request.op.request_id = 1;
751
752 language = cupsLangDefault();
753
754 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
755 "attributes-charset", NULL, "utf-8");
756
757 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
758 "attributes-natural-language", NULL, language->language);
759
760 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
761
762 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
763
764 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
765 goto out;
766 }
767 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
768 NULL, user);
769
770 /*
771 * Do the request and get back a response...
772 */
773
774 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
775 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
776 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
777 ippErrorString(cupsLastError())));
778 } else {
779 ret = 0;
780 }
781 } else {
782 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
783 ippErrorString(cupsLastError())));
784 }
785
786 out:
787 if (response)
788 ippDelete(response);
789
790 if (language)
791 cupsLangFree(language);
792
793 if (http)
794 httpClose(http);
795
796 TALLOC_FREE(frame);
797 return ret;
798}
799
800
801/*
802 * 'cups_job_resume()' - Resume a paused job.
803 */
804
805static int cups_job_resume(int snum, struct printjob *pjob)
806{
807 TALLOC_CTX *frame = talloc_stackframe();
808 int ret = 1; /* Return value */
809 http_t *http = NULL; /* HTTP connection to server */
810 ipp_t *request = NULL, /* IPP Request */
811 *response = NULL; /* IPP Response */
812 cups_lang_t *language = NULL; /* Default language */
813 char *user = NULL;
814 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
815 size_t size;
816
817 DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
818
819 /*
820 * Make sure we don't ask for passwords...
821 */
822
823 cupsSetPasswordCB(cups_passwd_cb);
824
825 /*
826 * Try to connect to the server...
827 */
828
829 if ((http = cups_connect(frame)) == NULL) {
830 goto out;
831 }
832
833 /*
834 * Build an IPP_RELEASE_JOB request, which requires the following
835 * attributes:
836 *
837 * attributes-charset
838 * attributes-natural-language
839 * job-uri
840 * requesting-user-name
841 */
842
843 request = ippNew();
844
845 request->request.op.operation_id = IPP_RELEASE_JOB;
846 request->request.op.request_id = 1;
847
848 language = cupsLangDefault();
849
850 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
851 "attributes-charset", NULL, "utf-8");
852
853 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
854 "attributes-natural-language", NULL, language->language);
855
856 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
857
858 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
859
860 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
861 goto out;
862 }
863 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
864 NULL, user);
865
866 /*
867 * Do the request and get back a response...
868 */
869
870 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
871 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
872 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
873 ippErrorString(cupsLastError())));
874 } else {
875 ret = 0;
876 }
877 } else {
878 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
879 ippErrorString(cupsLastError())));
880 }
881
882 out:
883 if (response)
884 ippDelete(response);
885
886 if (language)
887 cupsLangFree(language);
888
889 if (http)
890 httpClose(http);
891
892 TALLOC_FREE(frame);
893 return ret;
894}
895
896
897/*
898 * 'cups_job_submit()' - Submit a job for printing.
899 */
900
901static int cups_job_submit(int snum, struct printjob *pjob)
902{
903 TALLOC_CTX *frame = talloc_stackframe();
904 int ret = 1; /* Return value */
905 http_t *http = NULL; /* HTTP connection to server */
906 ipp_t *request = NULL, /* IPP Request */
907 *response = NULL; /* IPP Response */
908 ipp_attribute_t *attr_job_id = NULL; /* IPP Attribute "job-id" */
909 cups_lang_t *language = NULL; /* Default language */
910 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
911 const char *clientname = NULL; /* hostname of client for job-originating-host attribute */
912 char *new_jobname = NULL;
913 int num_options = 0;
914 cups_option_t *options = NULL;
915 char *printername = NULL;
916 char *user = NULL;
917 char *jobname = NULL;
918 char *cupsoptions = NULL;
919 char *filename = NULL;
920 size_t size;
921 uint32_t jobid = (uint32_t)-1;
922 char addr[INET6_ADDRSTRLEN];
923
924 DEBUG(5,("cups_job_submit(%d, %p)\n", snum, pjob));
925
926 /*
927 * Make sure we don't ask for passwords...
928 */
929
930 cupsSetPasswordCB(cups_passwd_cb);
931
932 /*
933 * Try to connect to the server...
934 */
935
936 if ((http = cups_connect(frame)) == NULL) {
937 goto out;
938 }
939
940 /*
941 * Build an IPP_PRINT_JOB request, which requires the following
942 * attributes:
943 *
944 * attributes-charset
945 * attributes-natural-language
946 * printer-uri
947 * requesting-user-name
948 * [document-data]
949 */
950
951 request = ippNew();
952
953 request->request.op.operation_id = IPP_PRINT_JOB;
954 request->request.op.request_id = 1;
955
956 language = cupsLangDefault();
957
958 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
959 "attributes-charset", NULL, "utf-8");
960
961 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
962 "attributes-natural-language", NULL, language->language);
963
964 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
965 goto out;
966 }
967 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
968 printername);
969
970 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
971 "printer-uri", NULL, uri);
972
973 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
974 goto out;
975 }
976 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
977 NULL, user);
978
979 clientname = client_name(get_client_fd());
980 if (strcmp(clientname, "UNKNOWN") == 0) {
981 clientname = client_addr(get_client_fd(),addr,sizeof(addr));
982 }
983
984 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
985 "job-originating-host-name", NULL,
986 clientname);
987
988 /* Get the jobid from the filename. */
989 jobid = print_parse_jobid(pjob->filename);
990 if (jobid == (uint32_t)-1) {
991 DEBUG(0,("cups_job_submit: failed to parse jobid from name %s\n",
992 pjob->filename ));
993 jobid = 0;
994 }
995
996 if (!push_utf8_talloc(frame, &jobname, pjob->jobname, &size)) {
997 goto out;
998 }
999 new_jobname = talloc_asprintf(frame,
1000 "%s%.8u %s", PRINT_SPOOL_PREFIX,
1001 (unsigned int)jobid,
1002 jobname);
1003 if (new_jobname == NULL) {
1004 goto out;
1005 }
1006
1007 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
1008 new_jobname);
1009
1010 /*
1011 * add any options defined in smb.conf
1012 */
1013
1014 if (!push_utf8_talloc(frame, &cupsoptions, lp_cups_options(snum), &size)) {
1015 goto out;
1016 }
1017 num_options = 0;
1018 options = NULL;
1019 num_options = cupsParseOptions(cupsoptions, num_options, &options);
1020
1021 if ( num_options )
1022 cupsEncodeOptions(request, num_options, options);
1023
1024 /*
1025 * Do the request and get back a response...
1026 */
1027
1028 slprintf(uri, sizeof(uri) - 1, "/printers/%s", printername);
1029
1030 if (!push_utf8_talloc(frame, &filename, pjob->filename, &size)) {
1031 goto out;
1032 }
1033 if ((response = cupsDoFileRequest(http, request, uri, pjob->filename)) != NULL) {
1034 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1035 DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
1036 ippErrorString(cupsLastError())));
1037 } else {
1038 ret = 0;
1039 attr_job_id = ippFindAttribute(response, "job-id", IPP_TAG_INTEGER);
1040 if(attr_job_id) {
1041 pjob->sysjob = attr_job_id->values[0].integer;
1042 DEBUG(5,("cups_job_submit: job-id %d\n", pjob->sysjob));
1043 } else {
1044 DEBUG(0,("Missing job-id attribute in IPP response"));
1045 }
1046 }
1047 } else {
1048 DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
1049 ippErrorString(cupsLastError())));
1050 }
1051
1052 if ( ret == 0 )
1053 unlink(pjob->filename);
1054 /* else print_job_end will do it for us */
1055
1056 out:
1057 if (response)
1058 ippDelete(response);
1059
1060 if (language)
1061 cupsLangFree(language);
1062
1063 if (http)
1064 httpClose(http);
1065
1066 TALLOC_FREE(frame);
1067
1068 return ret;
1069}
1070
1071/*
1072 * 'cups_queue_get()' - Get all the jobs in the print queue.
1073 */
1074
1075static int cups_queue_get(const char *sharename,
1076 enum printing_types printing_type,
1077 char *lpq_command,
1078 print_queue_struct **q,
1079 print_status_struct *status)
1080{
1081 TALLOC_CTX *frame = talloc_stackframe();
1082 char *printername = NULL;
1083 http_t *http = NULL; /* HTTP connection to server */
1084 ipp_t *request = NULL, /* IPP Request */
1085 *response = NULL; /* IPP Response */
1086 ipp_attribute_t *attr = NULL; /* Current attribute */
1087 cups_lang_t *language = NULL; /* Default language */
1088 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1089 int qcount = 0, /* Number of active queue entries */
1090 qalloc = 0; /* Number of queue entries allocated */
1091 print_queue_struct *queue = NULL, /* Queue entries */
1092 *temp; /* Temporary pointer for queue */
1093 char *user_name = NULL, /* job-originating-user-name attribute */
1094 *job_name = NULL; /* job-name attribute */
1095 int job_id; /* job-id attribute */
1096 int job_k_octets; /* job-k-octets attribute */
1097 time_t job_time; /* time-at-creation attribute */
1098 ipp_jstate_t job_status; /* job-status attribute */
1099 int job_priority; /* job-priority attribute */
1100 size_t size;
1101 static const char *jattrs[] = /* Requested job attributes */
1102 {
1103 "job-id",
1104 "job-k-octets",
1105 "job-name",
1106 "job-originating-user-name",
1107 "job-priority",
1108 "job-state",
1109 "time-at-creation",
1110 };
1111 static const char *pattrs[] = /* Requested printer attributes */
1112 {
1113 "printer-state",
1114 "printer-state-message"
1115 };
1116
1117 *q = NULL;
1118
1119 /* HACK ALERT!!! The problem with support the 'printer name'
1120 option is that we key the tdb off the sharename. So we will
1121 overload the lpq_command string to pass in the printername
1122 (which is basically what we do for non-cups printers ... using
1123 the lpq_command to get the queue listing). */
1124
1125 if (!push_utf8_talloc(frame, &printername, lpq_command, &size)) {
1126 goto out;
1127 }
1128 DEBUG(5,("cups_queue_get(%s, %p, %p)\n", lpq_command, q, status));
1129
1130 /*
1131 * Make sure we don't ask for passwords...
1132 */
1133
1134 cupsSetPasswordCB(cups_passwd_cb);
1135
1136 /*
1137 * Try to connect to the server...
1138 */
1139
1140 if ((http = cups_connect(frame)) == NULL) {
1141 goto out;
1142 }
1143
1144 /*
1145 * Generate the printer URI...
1146 */
1147
1148 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", printername);
1149
1150 /*
1151 * Build an IPP_GET_JOBS request, which requires the following
1152 * attributes:
1153 *
1154 * attributes-charset
1155 * attributes-natural-language
1156 * requested-attributes
1157 * printer-uri
1158 */
1159
1160 request = ippNew();
1161
1162 request->request.op.operation_id = IPP_GET_JOBS;
1163 request->request.op.request_id = 1;
1164
1165 language = cupsLangDefault();
1166
1167 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1168 "attributes-charset", NULL, "utf-8");
1169
1170 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1171 "attributes-natural-language", NULL, language->language);
1172
1173 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1174 "requested-attributes",
1175 (sizeof(jattrs) / sizeof(jattrs[0])),
1176 NULL, jattrs);
1177
1178 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1179 "printer-uri", NULL, uri);
1180
1181 /*
1182 * Do the request and get back a response...
1183 */
1184
1185 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1186 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
1187 ippErrorString(cupsLastError())));
1188 goto out;
1189 }
1190
1191 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1192 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
1193 ippErrorString(response->request.status.status_code)));
1194 goto out;
1195 }
1196
1197 /*
1198 * Process the jobs...
1199 */
1200
1201 qcount = 0;
1202 qalloc = 0;
1203 queue = NULL;
1204
1205 for (attr = response->attrs; attr != NULL; attr = attr->next) {
1206 /*
1207 * Skip leading attributes until we hit a job...
1208 */
1209
1210 while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
1211 attr = attr->next;
1212
1213 if (attr == NULL)
1214 break;
1215
1216 /*
1217 * Allocate memory as needed...
1218 */
1219 if (qcount >= qalloc) {
1220 qalloc += 16;
1221
1222 queue = SMB_REALLOC_ARRAY(queue, print_queue_struct, qalloc);
1223
1224 if (queue == NULL) {
1225 DEBUG(0,("cups_queue_get: Not enough memory!"));
1226 qcount = 0;
1227 goto out;
1228 }
1229 }
1230
1231 temp = queue + qcount;
1232 memset(temp, 0, sizeof(print_queue_struct));
1233
1234 /*
1235 * Pull the needed attributes from this job...
1236 */
1237
1238 job_id = 0;
1239 job_priority = 50;
1240 job_status = IPP_JOB_PENDING;
1241 job_time = 0;
1242 job_k_octets = 0;
1243 user_name = NULL;
1244 job_name = NULL;
1245
1246 while (attr != NULL && attr->group_tag == IPP_TAG_JOB) {
1247 if (attr->name == NULL) {
1248 attr = attr->next;
1249 break;
1250 }
1251
1252 if (strcmp(attr->name, "job-id") == 0 &&
1253 attr->value_tag == IPP_TAG_INTEGER)
1254 job_id = attr->values[0].integer;
1255
1256 if (strcmp(attr->name, "job-k-octets") == 0 &&
1257 attr->value_tag == IPP_TAG_INTEGER)
1258 job_k_octets = attr->values[0].integer;
1259
1260 if (strcmp(attr->name, "job-priority") == 0 &&
1261 attr->value_tag == IPP_TAG_INTEGER)
1262 job_priority = attr->values[0].integer;
1263
1264 if (strcmp(attr->name, "job-state") == 0 &&
1265 attr->value_tag == IPP_TAG_ENUM)
1266 job_status = (ipp_jstate_t)(attr->values[0].integer);
1267
1268 if (strcmp(attr->name, "time-at-creation") == 0 &&
1269 attr->value_tag == IPP_TAG_INTEGER)
1270 job_time = attr->values[0].integer;
1271
1272 if (strcmp(attr->name, "job-name") == 0 &&
1273 attr->value_tag == IPP_TAG_NAME) {
1274 if (!pull_utf8_talloc(frame,
1275 &job_name,
1276 attr->values[0].string.text,
1277 &size)) {
1278 goto out;
1279 }
1280 }
1281
1282 if (strcmp(attr->name, "job-originating-user-name") == 0 &&
1283 attr->value_tag == IPP_TAG_NAME) {
1284 if (!pull_utf8_talloc(frame,
1285 &user_name,
1286 attr->values[0].string.text,
1287 &size)) {
1288 goto out;
1289 }
1290 }
1291
1292 attr = attr->next;
1293 }
1294
1295 /*
1296 * See if we have everything needed...
1297 */
1298
1299 if (user_name == NULL || job_name == NULL || job_id == 0) {
1300 if (attr == NULL)
1301 break;
1302 else
1303 continue;
1304 }
1305
1306 temp->job = job_id;
1307 temp->size = job_k_octets * 1024;
1308 temp->status = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
1309 job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
1310 job_status == IPP_JOB_HELD ? LPQ_PAUSED :
1311 LPQ_PRINTING;
1312 temp->priority = job_priority;
1313 temp->time = job_time;
1314 strlcpy(temp->fs_user, user_name, sizeof(temp->fs_user));
1315 strlcpy(temp->fs_file, job_name, sizeof(temp->fs_file));
1316
1317 qcount ++;
1318
1319 if (attr == NULL)
1320 break;
1321 }
1322
1323 ippDelete(response);
1324 response = NULL;
1325
1326 /*
1327 * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
1328 * following attributes:
1329 *
1330 * attributes-charset
1331 * attributes-natural-language
1332 * requested-attributes
1333 * printer-uri
1334 */
1335
1336 request = ippNew();
1337
1338 request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1339 request->request.op.request_id = 1;
1340
1341 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1342 "attributes-charset", NULL, "utf-8");
1343
1344 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1345 "attributes-natural-language", NULL, language->language);
1346
1347 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1348 "requested-attributes",
1349 (sizeof(pattrs) / sizeof(pattrs[0])),
1350 NULL, pattrs);
1351
1352 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1353 "printer-uri", NULL, uri);
1354
1355 /*
1356 * Do the request and get back a response...
1357 */
1358
1359 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1360 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
1361 ippErrorString(cupsLastError())));
1362 goto out;
1363 }
1364
1365 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1366 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
1367 ippErrorString(response->request.status.status_code)));
1368 goto out;
1369 }
1370
1371 /*
1372 * Get the current printer status and convert it to the SAMBA values.
1373 */
1374
1375 if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL) {
1376 if (attr->values[0].integer == IPP_PRINTER_STOPPED)
1377 status->status = LPSTAT_STOPPED;
1378 else
1379 status->status = LPSTAT_OK;
1380 }
1381
1382 if ((attr = ippFindAttribute(response, "printer-state-message",
1383 IPP_TAG_TEXT)) != NULL) {
1384 char *msg = NULL;
1385 if (!pull_utf8_talloc(frame, &msg,
1386 attr->values[0].string.text,
1387 &size)) {
1388 SAFE_FREE(queue);
1389 qcount = 0;
1390 goto out;
1391 }
1392 fstrcpy(status->message, msg);
1393 }
1394
1395 out:
1396
1397 /*
1398 * Return the job queue...
1399 */
1400
1401 *q = queue;
1402
1403 if (response)
1404 ippDelete(response);
1405
1406 if (language)
1407 cupsLangFree(language);
1408
1409 if (http)
1410 httpClose(http);
1411
1412 TALLOC_FREE(frame);
1413 return qcount;
1414}
1415
1416
1417/*
1418 * 'cups_queue_pause()' - Pause a print queue.
1419 */
1420
1421static int cups_queue_pause(int snum)
1422{
1423 TALLOC_CTX *frame = talloc_stackframe();
1424 int ret = 1; /* Return value */
1425 http_t *http = NULL; /* HTTP connection to server */
1426 ipp_t *request = NULL, /* IPP Request */
1427 *response = NULL; /* IPP Response */
1428 cups_lang_t *language = NULL; /* Default language */
1429 char *printername = NULL;
1430 char *username = NULL;
1431 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1432 size_t size;
1433
1434 DEBUG(5,("cups_queue_pause(%d)\n", snum));
1435
1436 /*
1437 * Make sure we don't ask for passwords...
1438 */
1439
1440 cupsSetPasswordCB(cups_passwd_cb);
1441
1442 /*
1443 * Try to connect to the server...
1444 */
1445
1446 if ((http = cups_connect(frame)) == NULL) {
1447 goto out;
1448 }
1449
1450 /*
1451 * Build an IPP_PAUSE_PRINTER request, which requires the following
1452 * attributes:
1453 *
1454 * attributes-charset
1455 * attributes-natural-language
1456 * printer-uri
1457 * requesting-user-name
1458 */
1459
1460 request = ippNew();
1461
1462 request->request.op.operation_id = IPP_PAUSE_PRINTER;
1463 request->request.op.request_id = 1;
1464
1465 language = cupsLangDefault();
1466
1467 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1468 "attributes-charset", NULL, "utf-8");
1469
1470 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1471 "attributes-natural-language", NULL, language->language);
1472
1473 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
1474 goto out;
1475 }
1476 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1477 printername);
1478
1479 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1480
1481 if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
1482 goto out;
1483 }
1484 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1485 NULL, username);
1486
1487 /*
1488 * Do the request and get back a response...
1489 */
1490
1491 if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1492 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1493 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1494 ippErrorString(cupsLastError())));
1495 } else {
1496 ret = 0;
1497 }
1498 } else {
1499 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1500 ippErrorString(cupsLastError())));
1501 }
1502
1503 out:
1504 if (response)
1505 ippDelete(response);
1506
1507 if (language)
1508 cupsLangFree(language);
1509
1510 if (http)
1511 httpClose(http);
1512
1513 TALLOC_FREE(frame);
1514 return ret;
1515}
1516
1517
1518/*
1519 * 'cups_queue_resume()' - Restart a print queue.
1520 */
1521
1522static int cups_queue_resume(int snum)
1523{
1524 TALLOC_CTX *frame = talloc_stackframe();
1525 int ret = 1; /* Return value */
1526 http_t *http = NULL; /* HTTP connection to server */
1527 ipp_t *request = NULL, /* IPP Request */
1528 *response = NULL; /* IPP Response */
1529 cups_lang_t *language = NULL; /* Default language */
1530 char *printername = NULL;
1531 char *username = NULL;
1532 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1533 size_t size;
1534
1535 DEBUG(5,("cups_queue_resume(%d)\n", snum));
1536
1537 /*
1538 * Make sure we don't ask for passwords...
1539 */
1540
1541 cupsSetPasswordCB(cups_passwd_cb);
1542
1543 /*
1544 * Try to connect to the server...
1545 */
1546
1547 if ((http = cups_connect(frame)) == NULL) {
1548 goto out;
1549 }
1550
1551 /*
1552 * Build an IPP_RESUME_PRINTER request, which requires the following
1553 * attributes:
1554 *
1555 * attributes-charset
1556 * attributes-natural-language
1557 * printer-uri
1558 * requesting-user-name
1559 */
1560
1561 request = ippNew();
1562
1563 request->request.op.operation_id = IPP_RESUME_PRINTER;
1564 request->request.op.request_id = 1;
1565
1566 language = cupsLangDefault();
1567
1568 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1569 "attributes-charset", NULL, "utf-8");
1570
1571 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1572 "attributes-natural-language", NULL, language->language);
1573
1574 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
1575 goto out;
1576 }
1577 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1578 printername);
1579
1580 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1581
1582 if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
1583 goto out;
1584 }
1585 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1586 NULL, username);
1587
1588 /*
1589 * Do the request and get back a response...
1590 */
1591
1592 if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1593 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1594 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1595 ippErrorString(cupsLastError())));
1596 } else {
1597 ret = 0;
1598 }
1599 } else {
1600 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1601 ippErrorString(cupsLastError())));
1602 }
1603
1604 out:
1605 if (response)
1606 ippDelete(response);
1607
1608 if (language)
1609 cupsLangFree(language);
1610
1611 if (http)
1612 httpClose(http);
1613
1614 TALLOC_FREE(frame);
1615 return ret;
1616}
1617
1618/*******************************************************************
1619 * CUPS printing interface definitions...
1620 ******************************************************************/
1621
1622struct printif cups_printif =
1623{
1624 PRINT_CUPS,
1625 cups_queue_get,
1626 cups_queue_pause,
1627 cups_queue_resume,
1628 cups_job_delete,
1629 cups_job_pause,
1630 cups_job_resume,
1631 cups_job_submit,
1632};
1633
1634bool cups_pull_comment_location(NT_PRINTER_INFO_LEVEL_2 *printer)
1635{
1636 TALLOC_CTX *frame = talloc_stackframe();
1637 http_t *http = NULL; /* HTTP connection to server */
1638 ipp_t *request = NULL, /* IPP Request */
1639 *response = NULL; /* IPP Response */
1640 ipp_attribute_t *attr; /* Current attribute */
1641 cups_lang_t *language = NULL; /* Default language */
1642 char uri[HTTP_MAX_URI];
1643 char *server = NULL;
1644 char *sharename = NULL;
1645 char *name = NULL;
1646 static const char *requested[] =/* Requested attributes */
1647 {
1648 "printer-name",
1649 "printer-info",
1650 "printer-location"
1651 };
1652 bool ret = False;
1653 size_t size;
1654
1655 DEBUG(5, ("pulling %s location\n", printer->sharename));
1656
1657 /*
1658 * Make sure we don't ask for passwords...
1659 */
1660
1661 cupsSetPasswordCB(cups_passwd_cb);
1662
1663 /*
1664 * Try to connect to the server...
1665 */
1666
1667 if ((http = cups_connect(frame)) == NULL) {
1668 goto out;
1669 }
1670
1671 request = ippNew();
1672
1673 request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1674 request->request.op.request_id = 1;
1675
1676 language = cupsLangDefault();
1677
1678 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1679 "attributes-charset", NULL, "utf-8");
1680
1681 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1682 "attributes-natural-language", NULL, language->language);
1683
1684 if (lp_cups_server() != NULL && strlen(lp_cups_server()) > 0) {
1685 if (!push_utf8_talloc(frame, &server, lp_cups_server(), &size)) {
1686 goto out;
1687 }
1688 } else {
1689 server = talloc_strdup(frame,cupsServer());
1690 }
1691 if (server) {
1692 goto out;
1693 }
1694 if (!push_utf8_talloc(frame, &sharename, printer->sharename, &size)) {
1695 goto out;
1696 }
1697 slprintf(uri, sizeof(uri) - 1, "ipp://%s/printers/%s",
1698 server, sharename);
1699
1700 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1701 "printer-uri", NULL, uri);
1702
1703 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1704 "requested-attributes",
1705 (sizeof(requested) / sizeof(requested[0])),
1706 NULL, requested);
1707
1708 /*
1709 * Do the request and get back a response...
1710 */
1711
1712 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1713 DEBUG(0,("Unable to get printer attributes - %s\n",
1714 ippErrorString(cupsLastError())));
1715 goto out;
1716 }
1717
1718 for (attr = response->attrs; attr != NULL;) {
1719 /*
1720 * Skip leading attributes until we hit a printer...
1721 */
1722
1723 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
1724 attr = attr->next;
1725
1726 if (attr == NULL)
1727 break;
1728
1729 /*
1730 * Pull the needed attributes from this printer...
1731 */
1732
1733 while ( attr && (attr->group_tag == IPP_TAG_PRINTER) ) {
1734 if (strcmp(attr->name, "printer-name") == 0 &&
1735 attr->value_tag == IPP_TAG_NAME) {
1736 if (!pull_utf8_talloc(frame,
1737 &name,
1738 attr->values[0].string.text,
1739 &size)) {
1740 goto out;
1741 }
1742 }
1743
1744 /* Grab the comment if we don't have one */
1745 if ( (strcmp(attr->name, "printer-info") == 0)
1746 && (attr->value_tag == IPP_TAG_TEXT)
1747 && !strlen(printer->comment) )
1748 {
1749 char *comment = NULL;
1750 if (!pull_utf8_talloc(frame,
1751 &comment,
1752 attr->values[0].string.text,
1753 &size)) {
1754 goto out;
1755 }
1756 DEBUG(5,("cups_pull_comment_location: Using cups comment: %s\n",
1757 comment));
1758 strlcpy(printer->comment,
1759 comment,
1760 sizeof(printer->comment));
1761 }
1762
1763 /* Grab the location if we don't have one */
1764 if ( (strcmp(attr->name, "printer-location") == 0)
1765 && (attr->value_tag == IPP_TAG_TEXT)
1766 && !strlen(printer->location) )
1767 {
1768 char *location = NULL;
1769 if (!pull_utf8_talloc(frame,
1770 &location,
1771 attr->values[0].string.text,
1772 &size)) {
1773 goto out;
1774 }
1775 DEBUG(5,("cups_pull_comment_location: Using cups location: %s\n",
1776 location));
1777 strlcpy(printer->location,
1778 location,
1779 sizeof(printer->location));
1780 }
1781
1782 attr = attr->next;
1783 }
1784
1785 /*
1786 * We have everything needed...
1787 */
1788
1789 if (name != NULL)
1790 break;
1791 }
1792
1793 ret = True;
1794
1795 out:
1796 if (response)
1797 ippDelete(response);
1798
1799 if (request) {
1800 ippDelete(request);
1801 }
1802
1803 if (language)
1804 cupsLangFree(language);
1805
1806 if (http)
1807 httpClose(http);
1808
1809 TALLOC_FREE(frame);
1810 return ret;
1811}
1812
1813#else
1814 /* this keeps fussy compilers happy */
1815 void print_cups_dummy(void);
1816 void print_cups_dummy(void) {}
1817#endif /* HAVE_CUPS */
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