?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
winbind: fix smbd hanging on Solaris when winbindd closes socket.
[Samba/bb.git] / source / printing / print_cups.c
blobca3415ca5a0cfec652091eb64425e9364016c11e
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
32 static SIG_ATOMIC_T gotalarm;
33
34 /***************************************************************
35 Signal function to tell us we timed out.
36 ****************************************************************/
37
38 static void gotalarm_sig(void)
39 {
40 gotalarm = 1;
41 }
42
43 extern userdom_struct current_user_info;
44
45 /*
46 * 'cups_passwd_cb()' - The CUPS password callback...
47 */
48
49 static const char * /* O - Password or NULL */
50 cups_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
59 static 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 http = httpConnect(server, port);
97
98 CatchSignal(SIGALRM, SIGNAL_CAST SIG_IGN);
99 alarm(0);
100
101 if (http == NULL) {
102 DEBUG(0,("Unable to connect to CUPS server %s:%d - %s\n",
103 server, port, strerror(errno)));
104 }
105
106 return http;
107 }
108
109 static void send_pcap_info(const char *name, const char *info, void *pd)
110 {
111 int fd = *(int *)pd;
112 size_t namelen = name ? strlen(name)+1 : 0;
113 size_t infolen = info ? strlen(info)+1 : 0;
114
115 DEBUG(11,("send_pcap_info: writing namelen %u\n", (unsigned int)namelen));
116 if (sys_write(fd, &namelen, sizeof(namelen)) != sizeof(namelen)) {
117 DEBUG(10,("send_pcap_info: namelen write failed %s\n",
118 strerror(errno)));
119 return;
120 }
121 DEBUG(11,("send_pcap_info: writing infolen %u\n", (unsigned int)infolen));
122 if (sys_write(fd, &infolen, sizeof(infolen)) != sizeof(infolen)) {
123 DEBUG(10,("send_pcap_info: infolen write failed %s\n",
124 strerror(errno)));
125 return;
126 }
127 if (namelen) {
128 DEBUG(11,("send_pcap_info: writing name %s\n", name));
129 if (sys_write(fd, name, namelen) != namelen) {
130 DEBUG(10,("send_pcap_info: name write failed %s\n",
131 strerror(errno)));
132 return;
133 }
134 }
135 if (infolen) {
136 DEBUG(11,("send_pcap_info: writing info %s\n", info));
137 if (sys_write(fd, info, infolen) != infolen) {
138 DEBUG(10,("send_pcap_info: info write failed %s\n",
139 strerror(errno)));
140 return;
141 }
142 }
143 }
144
145 static bool cups_cache_reload_async(int fd)
146 {
147 TALLOC_CTX *frame = talloc_stackframe();
148 struct pcap_cache *tmp_pcap_cache = NULL;
149 http_t *http = NULL; /* HTTP connection to server */
150 ipp_t *request = NULL, /* IPP Request */
151 *response = NULL; /* IPP Response */
152 ipp_attribute_t *attr; /* Current attribute */
153 cups_lang_t *language = NULL; /* Default language */
154 char *name, /* printer-name attribute */
155 *info; /* printer-info attribute */
156 static const char *requested[] =/* Requested attributes */
157 {
158 "printer-name",
159 "printer-info"
160 };
161 bool ret = False;
162 size_t size;
163
164 DEBUG(5, ("reloading cups printcap cache\n"));
165
166 /*
167 * Make sure we don't ask for passwords...
168 */
169
170 cupsSetPasswordCB(cups_passwd_cb);
171
172 /*
173 * Try to connect to the server...
174 */
175
176 if ((http = cups_connect(frame)) == NULL) {
177 goto out;
178 }
179
180 /*
181 * Build a CUPS_GET_PRINTERS request, which requires the following
182 * attributes:
183 *
184 * attributes-charset
185 * attributes-natural-language
186 * requested-attributes
187 */
188
189 request = ippNew();
190
191 request->request.op.operation_id = CUPS_GET_PRINTERS;
192 request->request.op.request_id = 1;
193
194 language = cupsLangDefault();
195
196 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
197 "attributes-charset", NULL, "utf-8");
198
199 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
200 "attributes-natural-language", NULL, language->language);
201
202 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
203 "requested-attributes",
204 (sizeof(requested) / sizeof(requested[0])),
205 NULL, requested);
206
207 /*
208 * Do the request and get back a response...
209 */
210
211 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
212 DEBUG(0,("Unable to get printer list - %s\n",
213 ippErrorString(cupsLastError())));
214 goto out;
215 }
216
217 for (attr = response->attrs; attr != NULL;) {
218 /*
219 * Skip leading attributes until we hit a printer...
220 */
221
222 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
223 attr = attr->next;
224
225 if (attr == NULL)
226 break;
227
228 /*
229 * Pull the needed attributes from this printer...
230 */
231
232 name = NULL;
233 info = NULL;
234
235 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
236 if (strcmp(attr->name, "printer-name") == 0 &&
237 attr->value_tag == IPP_TAG_NAME) {
238 if (!pull_utf8_talloc(frame,
239 &name,
240 attr->values[0].string.text,
241 &size)) {
242 goto out;
243 }
244 }
245
246 if (strcmp(attr->name, "printer-info") == 0 &&
247 attr->value_tag == IPP_TAG_TEXT) {
248 if (!pull_utf8_talloc(frame,
249 &info,
250 attr->values[0].string.text,
251 &size)) {
252 goto out;
253 }
254 }
255
256 attr = attr->next;
257 }
258
259 /*
260 * See if we have everything needed...
261 */
262
263 if (name == NULL)
264 break;
265
266 if (!pcap_cache_add_specific(&tmp_pcap_cache, name, info)) {
267 goto out;
268 }
269 }
270
271 ippDelete(response);
272 response = NULL;
273
274 /*
275 * Build a CUPS_GET_CLASSES request, which requires the following
276 * attributes:
277 *
278 * attributes-charset
279 * attributes-natural-language
280 * requested-attributes
281 */
282
283 request = ippNew();
284
285 request->request.op.operation_id = CUPS_GET_CLASSES;
286 request->request.op.request_id = 1;
287
288 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
289 "attributes-charset", NULL, "utf-8");
290
291 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
292 "attributes-natural-language", NULL, language->language);
293
294 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
295 "requested-attributes",
296 (sizeof(requested) / sizeof(requested[0])),
297 NULL, requested);
298
299 /*
300 * Do the request and get back a response...
301 */
302
303 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
304 DEBUG(0,("Unable to get printer list - %s\n",
305 ippErrorString(cupsLastError())));
306 goto out;
307 }
308
309 for (attr = response->attrs; attr != NULL;) {
310 /*
311 * Skip leading attributes until we hit a printer...
312 */
313
314 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
315 attr = attr->next;
316
317 if (attr == NULL)
318 break;
319
320 /*
321 * Pull the needed attributes from this printer...
322 */
323
324 name = NULL;
325 info = NULL;
326
327 while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
328 if (strcmp(attr->name, "printer-name") == 0 &&
329 attr->value_tag == IPP_TAG_NAME) {
330 if (!pull_utf8_talloc(frame,
331 &name,
332 attr->values[0].string.text,
333 &size)) {
334 goto out;
335 }
336 }
337
338 if (strcmp(attr->name, "printer-info") == 0 &&
339 attr->value_tag == IPP_TAG_TEXT) {
340 if (!pull_utf8_talloc(frame,
341 &info,
342 attr->values[0].string.text,
343 &size)) {
344 goto out;
345 }
346 }
347
348 attr = attr->next;
349 }
350
351 /*
352 * See if we have everything needed...
353 */
354
355 if (name == NULL)
356 break;
357
358 if (!pcap_cache_add_specific(&tmp_pcap_cache, name, info)) {
359 goto out;
360 }
361 }
362
363 ret = True;
364
365 out:
366 if (response)
367 ippDelete(response);
368
369 if (language)
370 cupsLangFree(language);
371
372 if (http)
373 httpClose(http);
374
375 /* Send all the entries up the pipe. */
376 if (tmp_pcap_cache) {
377 pcap_printer_fn_specific(tmp_pcap_cache,
378 send_pcap_info,
379 (void *)&fd);
380
381 pcap_cache_destroy_specific(&tmp_pcap_cache);
382 }
383 TALLOC_FREE(frame);
384 return ret;
385 }
386
387 static struct pcap_cache *local_pcap_copy;
388 struct fd_event *cache_fd_event;
389
390 static bool cups_pcap_load_async(int *pfd)
391 {
392 int fds[2];
393 pid_t pid;
394
395 *pfd = -1;
396
397 if (cache_fd_event) {
398 DEBUG(3,("cups_pcap_load_async: already waiting for "
399 "a refresh event\n" ));
400 return false;
401 }
402
403 DEBUG(5,("cups_pcap_load_async: asynchronously loading cups printers\n"));
404
405 if (pipe(fds) == -1) {
406 return false;
407 }
408
409 pid = sys_fork();
410 if (pid == (pid_t)-1) {
411 DEBUG(10,("cups_pcap_load_async: fork failed %s\n",
412 strerror(errno) ));
413 close(fds[0]);
414 close(fds[1]);
415 return false;
416 }
417
418 if (pid) {
419 DEBUG(10,("cups_pcap_load_async: child pid = %u\n",
420 (unsigned int)pid ));
421 /* Parent. */
422 close(fds[1]);
423 *pfd = fds[0];
424 return true;
425 }
426
427 /* Child. */
428 if (!reinit_after_fork(smbd_messaging_context(), true)) {
429 DEBUG(0,("cups_pcap_load_async: reinit_after_fork() failed\n"));
430 smb_panic("cups_pcap_load_async: reinit_after_fork() failed");
431 }
432
433 close(fds[0]);
434 cups_cache_reload_async(fds[1]);
435 close(fds[1]);
436 _exit(0);
437 }
438
439 static void cups_async_callback(struct event_context *event_ctx,
440 struct fd_event *event,
441 uint16 flags,
442 void *p)
443 {
444 TALLOC_CTX *frame = talloc_stackframe();
445 int fd = *(int *)p;
446 struct pcap_cache *tmp_pcap_cache = NULL;
447
448 DEBUG(5,("cups_async_callback: callback received for printer data. "
449 "fd = %d\n", fd));
450
451 while (1) {
452 char *name = NULL, *info = NULL;
453 size_t namelen = 0, infolen = 0;
454 ssize_t ret = -1;
455
456 ret = sys_read(fd, &namelen, sizeof(namelen));
457 if (ret == 0) {
458 /* EOF */
459 break;
460 }
461 if (ret != sizeof(namelen)) {
462 DEBUG(10,("cups_async_callback: namelen read failed %d %s\n",
463 errno, strerror(errno)));
464 break;
465 }
466
467 DEBUG(11,("cups_async_callback: read namelen %u\n",
468 (unsigned int)namelen));
469
470 ret = sys_read(fd, &infolen, sizeof(infolen));
471 if (ret == 0) {
472 /* EOF */
473 break;
474 }
475 if (ret != sizeof(infolen)) {
476 DEBUG(10,("cups_async_callback: infolen read failed %s\n",
477 strerror(errno)));
478 break;
479 }
480
481 DEBUG(11,("cups_async_callback: read infolen %u\n",
482 (unsigned int)infolen));
483
484 if (namelen) {
485 name = TALLOC_ARRAY(frame, char, namelen);
486 if (!name) {
487 break;
488 }
489 ret = sys_read(fd, name, namelen);
490 if (ret == 0) {
491 /* EOF */
492 break;
493 }
494 if (ret != namelen) {
495 DEBUG(10,("cups_async_callback: name read failed %s\n",
496 strerror(errno)));
497 break;
498 }
499 DEBUG(11,("cups_async_callback: read name %s\n",
500 name));
501 } else {
502 name = NULL;
503 }
504 if (infolen) {
505 info = TALLOC_ARRAY(frame, char, infolen);
506 if (!info) {
507 break;
508 }
509 ret = sys_read(fd, info, infolen);
510 if (ret == 0) {
511 /* EOF */
512 break;
513 }
514 if (ret != infolen) {
515 DEBUG(10,("cups_async_callback: info read failed %s\n",
516 strerror(errno)));
517 break;
518 }
519 DEBUG(11,("cups_async_callback: read info %s\n",
520 info));
521 } else {
522 info = NULL;
523 }
524
525 /* Add to our local pcap cache. */
526 pcap_cache_add_specific(&tmp_pcap_cache, name, info);
527 TALLOC_FREE(name);
528 TALLOC_FREE(info);
529 }
530
531 TALLOC_FREE(frame);
532 if (tmp_pcap_cache) {
533 /* We got a namelist, replace our local cache. */
534 pcap_cache_destroy_specific(&local_pcap_copy);
535 local_pcap_copy = tmp_pcap_cache;
536
537 /* And the systemwide pcap cache. */
538 pcap_cache_replace(local_pcap_copy);
539 } else {
540 DEBUG(2,("cups_async_callback: failed to read a new "
541 "printer list\n"));
542 }
543 close(fd);
544 TALLOC_FREE(p);
545 TALLOC_FREE(cache_fd_event);
546 }
547
548 bool cups_cache_reload(void)
549 {
550 int *p_pipe_fd = TALLOC_P(NULL, int);
551
552 if (!p_pipe_fd) {
553 return false;
554 }
555
556 *p_pipe_fd = -1;
557
558 /* Set up an async refresh. */
559 if (!cups_pcap_load_async(p_pipe_fd)) {
560 return false;
561 }
562 if (!local_pcap_copy) {
563 /* We have no local cache, wait directly for
564 * async refresh to complete.
565 */
566 DEBUG(10,("cups_cache_reload: sync read on fd %d\n",
567 *p_pipe_fd ));
568
569 cups_async_callback(smbd_event_context(),
570 NULL,
571 EVENT_FD_READ,
572 (void *)p_pipe_fd);
573 if (!local_pcap_copy) {
574 return false;
575 }
576 } else {
577 /* Replace the system cache with our
578 * local copy. */
579 pcap_cache_replace(local_pcap_copy);
580
581 DEBUG(10,("cups_cache_reload: async read on fd %d\n",
582 *p_pipe_fd ));
583
584 /* Trigger an event when the pipe can be read. */
585 cache_fd_event = event_add_fd(smbd_event_context(),
586 NULL, *p_pipe_fd,
587 EVENT_FD_READ,
588 cups_async_callback,
589 (void *)p_pipe_fd);
590 if (!cache_fd_event) {
591 close(*p_pipe_fd);
592 TALLOC_FREE(p_pipe_fd);
593 return false;
594 }
595 }
596 return true;
597 }
598
599 /*
600 * 'cups_job_delete()' - Delete a job.
601 */
602
603 static int cups_job_delete(const char *sharename, const char *lprm_command, struct printjob *pjob)
604 {
605 TALLOC_CTX *frame = talloc_stackframe();
606 int ret = 1; /* Return value */
607 http_t *http = NULL; /* HTTP connection to server */
608 ipp_t *request = NULL, /* IPP Request */
609 *response = NULL; /* IPP Response */
610 cups_lang_t *language = NULL; /* Default language */
611 char *user = NULL;
612 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
613 size_t size;
614
615 DEBUG(5,("cups_job_delete(%s, %p (%d))\n", sharename, pjob, pjob->sysjob));
616
617 /*
618 * Make sure we don't ask for passwords...
619 */
620
621 cupsSetPasswordCB(cups_passwd_cb);
622
623 /*
624 * Try to connect to the server...
625 */
626
627 if ((http = cups_connect(frame)) == NULL) {
628 goto out;
629 }
630
631 /*
632 * Build an IPP_CANCEL_JOB request, which requires the following
633 * attributes:
634 *
635 * attributes-charset
636 * attributes-natural-language
637 * job-uri
638 * requesting-user-name
639 */
640
641 request = ippNew();
642
643 request->request.op.operation_id = IPP_CANCEL_JOB;
644 request->request.op.request_id = 1;
645
646 language = cupsLangDefault();
647
648 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
649 "attributes-charset", NULL, "utf-8");
650
651 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
652 "attributes-natural-language", NULL, language->language);
653
654 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
655
656 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
657
658 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
659 goto out;
660 }
661
662 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
663 NULL, user);
664
665 /*
666 * Do the request and get back a response...
667 */
668
669 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
670 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
671 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
672 ippErrorString(cupsLastError())));
673 } else {
674 ret = 0;
675 }
676 } else {
677 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
678 ippErrorString(cupsLastError())));
679 }
680
681 out:
682 if (response)
683 ippDelete(response);
684
685 if (language)
686 cupsLangFree(language);
687
688 if (http)
689 httpClose(http);
690
691 TALLOC_FREE(frame);
692 return ret;
693 }
694
695
696 /*
697 * 'cups_job_pause()' - Pause a job.
698 */
699
700 static int cups_job_pause(int snum, struct printjob *pjob)
701 {
702 TALLOC_CTX *frame = talloc_stackframe();
703 int ret = 1; /* Return value */
704 http_t *http = NULL; /* HTTP connection to server */
705 ipp_t *request = NULL, /* IPP Request */
706 *response = NULL; /* IPP Response */
707 cups_lang_t *language = NULL; /* Default language */
708 char *user = NULL;
709 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
710 size_t size;
711
712 DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
713
714 /*
715 * Make sure we don't ask for passwords...
716 */
717
718 cupsSetPasswordCB(cups_passwd_cb);
719
720 /*
721 * Try to connect to the server...
722 */
723
724 if ((http = cups_connect(frame)) == NULL) {
725 goto out;
726 }
727
728 /*
729 * Build an IPP_HOLD_JOB request, which requires the following
730 * attributes:
731 *
732 * attributes-charset
733 * attributes-natural-language
734 * job-uri
735 * requesting-user-name
736 */
737
738 request = ippNew();
739
740 request->request.op.operation_id = IPP_HOLD_JOB;
741 request->request.op.request_id = 1;
742
743 language = cupsLangDefault();
744
745 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
746 "attributes-charset", NULL, "utf-8");
747
748 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
749 "attributes-natural-language", NULL, language->language);
750
751 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
752
753 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
754
755 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
756 goto out;
757 }
758 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
759 NULL, user);
760
761 /*
762 * Do the request and get back a response...
763 */
764
765 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
766 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
767 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
768 ippErrorString(cupsLastError())));
769 } else {
770 ret = 0;
771 }
772 } else {
773 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
774 ippErrorString(cupsLastError())));
775 }
776
777 out:
778 if (response)
779 ippDelete(response);
780
781 if (language)
782 cupsLangFree(language);
783
784 if (http)
785 httpClose(http);
786
787 TALLOC_FREE(frame);
788 return ret;
789 }
790
791
792 /*
793 * 'cups_job_resume()' - Resume a paused job.
794 */
795
796 static int cups_job_resume(int snum, struct printjob *pjob)
797 {
798 TALLOC_CTX *frame = talloc_stackframe();
799 int ret = 1; /* Return value */
800 http_t *http = NULL; /* HTTP connection to server */
801 ipp_t *request = NULL, /* IPP Request */
802 *response = NULL; /* IPP Response */
803 cups_lang_t *language = NULL; /* Default language */
804 char *user = NULL;
805 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
806 size_t size;
807
808 DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
809
810 /*
811 * Make sure we don't ask for passwords...
812 */
813
814 cupsSetPasswordCB(cups_passwd_cb);
815
816 /*
817 * Try to connect to the server...
818 */
819
820 if ((http = cups_connect(frame)) == NULL) {
821 goto out;
822 }
823
824 /*
825 * Build an IPP_RELEASE_JOB request, which requires the following
826 * attributes:
827 *
828 * attributes-charset
829 * attributes-natural-language
830 * job-uri
831 * requesting-user-name
832 */
833
834 request = ippNew();
835
836 request->request.op.operation_id = IPP_RELEASE_JOB;
837 request->request.op.request_id = 1;
838
839 language = cupsLangDefault();
840
841 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
842 "attributes-charset", NULL, "utf-8");
843
844 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
845 "attributes-natural-language", NULL, language->language);
846
847 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
848
849 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
850
851 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
852 goto out;
853 }
854 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
855 NULL, user);
856
857 /*
858 * Do the request and get back a response...
859 */
860
861 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
862 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
863 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
864 ippErrorString(cupsLastError())));
865 } else {
866 ret = 0;
867 }
868 } else {
869 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
870 ippErrorString(cupsLastError())));
871 }
872
873 out:
874 if (response)
875 ippDelete(response);
876
877 if (language)
878 cupsLangFree(language);
879
880 if (http)
881 httpClose(http);
882
883 TALLOC_FREE(frame);
884 return ret;
885 }
886
887
888 /*
889 * 'cups_job_submit()' - Submit a job for printing.
890 */
891
892 static int cups_job_submit(int snum, struct printjob *pjob)
893 {
894 TALLOC_CTX *frame = talloc_stackframe();
895 int ret = 1; /* Return value */
896 http_t *http = NULL; /* HTTP connection to server */
897 ipp_t *request = NULL, /* IPP Request */
898 *response = NULL; /* IPP Response */
899 cups_lang_t *language = NULL; /* Default language */
900 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
901 const char *clientname = NULL; /* hostname of client for job-originating-host attribute */
902 char *new_jobname = NULL;
903 int num_options = 0;
904 cups_option_t *options = NULL;
905 char *printername = NULL;
906 char *user = NULL;
907 char *jobname = NULL;
908 char *cupsoptions = NULL;
909 char *filename = NULL;
910 size_t size;
911 char addr[INET6_ADDRSTRLEN];
912
913 DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
914
915 /*
916 * Make sure we don't ask for passwords...
917 */
918
919 cupsSetPasswordCB(cups_passwd_cb);
920
921 /*
922 * Try to connect to the server...
923 */
924
925 if ((http = cups_connect(frame)) == NULL) {
926 goto out;
927 }
928
929 /*
930 * Build an IPP_PRINT_JOB request, which requires the following
931 * attributes:
932 *
933 * attributes-charset
934 * attributes-natural-language
935 * printer-uri
936 * requesting-user-name
937 * [document-data]
938 */
939
940 request = ippNew();
941
942 request->request.op.operation_id = IPP_PRINT_JOB;
943 request->request.op.request_id = 1;
944
945 language = cupsLangDefault();
946
947 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
948 "attributes-charset", NULL, "utf-8");
949
950 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
951 "attributes-natural-language", NULL, language->language);
952
953 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
954 goto out;
955 }
956 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
957 printername);
958
959 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
960 "printer-uri", NULL, uri);
961
962 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
963 goto out;
964 }
965 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
966 NULL, user);
967
968 clientname = client_name(get_client_fd());
969 if (strcmp(clientname, "UNKNOWN") == 0) {
970 clientname = client_addr(get_client_fd(),addr,sizeof(addr));
971 }
972
973 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
974 "job-originating-host-name", NULL,
975 clientname);
976
977 if (!push_utf8_talloc(frame, &jobname, pjob->jobname, &size)) {
978 goto out;
979 }
980 new_jobname = talloc_asprintf(frame,
981 "%s%.8u %s", PRINT_SPOOL_PREFIX,
982 (unsigned int)pjob->smbjob,
983 jobname);
984 if (new_jobname == NULL) {
985 goto out;
986 }
987
988 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
989 new_jobname);
990
991 /*
992 * add any options defined in smb.conf
993 */
994
995 if (!push_utf8_talloc(frame, &cupsoptions, lp_cups_options(snum), &size)) {
996 goto out;
997 }
998 num_options = 0;
999 options = NULL;
1000 num_options = cupsParseOptions(cupsoptions, num_options, &options);
1001
1002 if ( num_options )
1003 cupsEncodeOptions(request, num_options, options);
1004
1005 /*
1006 * Do the request and get back a response...
1007 */
1008
1009 slprintf(uri, sizeof(uri) - 1, "/printers/%s", printername);
1010
1011 if (!push_utf8_talloc(frame, &filename, pjob->filename, &size)) {
1012 goto out;
1013 }
1014 if ((response = cupsDoFileRequest(http, request, uri, pjob->filename)) != NULL) {
1015 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1016 DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
1017 ippErrorString(cupsLastError())));
1018 } else {
1019 ret = 0;
1020 }
1021 } else {
1022 DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
1023 ippErrorString(cupsLastError())));
1024 }
1025
1026 if ( ret == 0 )
1027 unlink(pjob->filename);
1028 /* else print_job_end will do it for us */
1029
1030 out:
1031 if (response)
1032 ippDelete(response);
1033
1034 if (language)
1035 cupsLangFree(language);
1036
1037 if (http)
1038 httpClose(http);
1039
1040 TALLOC_FREE(frame);
1041
1042 return ret;
1043 }
1044
1045 /*
1046 * 'cups_queue_get()' - Get all the jobs in the print queue.
1047 */
1048
1049 static int cups_queue_get(const char *sharename,
1050 enum printing_types printing_type,
1051 char *lpq_command,
1052 print_queue_struct **q,
1053 print_status_struct *status)
1054 {
1055 TALLOC_CTX *frame = talloc_stackframe();
1056 char *printername = NULL;
1057 http_t *http = NULL; /* HTTP connection to server */
1058 ipp_t *request = NULL, /* IPP Request */
1059 *response = NULL; /* IPP Response */
1060 ipp_attribute_t *attr = NULL; /* Current attribute */
1061 cups_lang_t *language = NULL; /* Default language */
1062 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1063 int qcount = 0, /* Number of active queue entries */
1064 qalloc = 0; /* Number of queue entries allocated */
1065 print_queue_struct *queue = NULL, /* Queue entries */
1066 *temp; /* Temporary pointer for queue */
1067 char *user_name = NULL, /* job-originating-user-name attribute */
1068 *job_name = NULL; /* job-name attribute */
1069 int job_id; /* job-id attribute */
1070 int job_k_octets; /* job-k-octets attribute */
1071 time_t job_time; /* time-at-creation attribute */
1072 ipp_jstate_t job_status; /* job-status attribute */
1073 int job_priority; /* job-priority attribute */
1074 size_t size;
1075 static const char *jattrs[] = /* Requested job attributes */
1076 {
1077 "job-id",
1078 "job-k-octets",
1079 "job-name",
1080 "job-originating-user-name",
1081 "job-priority",
1082 "job-state",
1083 "time-at-creation",
1084 };
1085 static const char *pattrs[] = /* Requested printer attributes */
1086 {
1087 "printer-state",
1088 "printer-state-message"
1089 };
1090
1091 *q = NULL;
1092
1093 /* HACK ALERT!!! The problem with support the 'printer name'
1094 option is that we key the tdb off the sharename. So we will
1095 overload the lpq_command string to pass in the printername
1096 (which is basically what we do for non-cups printers ... using
1097 the lpq_command to get the queue listing). */
1098
1099 if (!push_utf8_talloc(frame, &printername, lpq_command, &size)) {
1100 goto out;
1101 }
1102 DEBUG(5,("cups_queue_get(%s, %p, %p)\n", lpq_command, q, status));
1103
1104 /*
1105 * Make sure we don't ask for passwords...
1106 */
1107
1108 cupsSetPasswordCB(cups_passwd_cb);
1109
1110 /*
1111 * Try to connect to the server...
1112 */
1113
1114 if ((http = cups_connect(frame)) == NULL) {
1115 goto out;
1116 }
1117
1118 /*
1119 * Generate the printer URI...
1120 */
1121
1122 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", printername);
1123
1124 /*
1125 * Build an IPP_GET_JOBS request, which requires the following
1126 * attributes:
1127 *
1128 * attributes-charset
1129 * attributes-natural-language
1130 * requested-attributes
1131 * printer-uri
1132 */
1133
1134 request = ippNew();
1135
1136 request->request.op.operation_id = IPP_GET_JOBS;
1137 request->request.op.request_id = 1;
1138
1139 language = cupsLangDefault();
1140
1141 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1142 "attributes-charset", NULL, "utf-8");
1143
1144 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1145 "attributes-natural-language", NULL, language->language);
1146
1147 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1148 "requested-attributes",
1149 (sizeof(jattrs) / sizeof(jattrs[0])),
1150 NULL, jattrs);
1151
1152 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1153 "printer-uri", NULL, uri);
1154
1155 /*
1156 * Do the request and get back a response...
1157 */
1158
1159 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1160 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
1161 ippErrorString(cupsLastError())));
1162 goto out;
1163 }
1164
1165 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1166 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
1167 ippErrorString(response->request.status.status_code)));
1168 goto out;
1169 }
1170
1171 /*
1172 * Process the jobs...
1173 */
1174
1175 qcount = 0;
1176 qalloc = 0;
1177 queue = NULL;
1178
1179 for (attr = response->attrs; attr != NULL; attr = attr->next) {
1180 /*
1181 * Skip leading attributes until we hit a job...
1182 */
1183
1184 while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
1185 attr = attr->next;
1186
1187 if (attr == NULL)
1188 break;
1189
1190 /*
1191 * Allocate memory as needed...
1192 */
1193 if (qcount >= qalloc) {
1194 qalloc += 16;
1195
1196 queue = SMB_REALLOC_ARRAY(queue, print_queue_struct, qalloc);
1197
1198 if (queue == NULL) {
1199 DEBUG(0,("cups_queue_get: Not enough memory!"));
1200 qcount = 0;
1201 goto out;
1202 }
1203 }
1204
1205 temp = queue + qcount;
1206 memset(temp, 0, sizeof(print_queue_struct));
1207
1208 /*
1209 * Pull the needed attributes from this job...
1210 */
1211
1212 job_id = 0;
1213 job_priority = 50;
1214 job_status = IPP_JOB_PENDING;
1215 job_time = 0;
1216 job_k_octets = 0;
1217 user_name = NULL;
1218 job_name = NULL;
1219
1220 while (attr != NULL && attr->group_tag == IPP_TAG_JOB) {
1221 if (attr->name == NULL) {
1222 attr = attr->next;
1223 break;
1224 }
1225
1226 if (strcmp(attr->name, "job-id") == 0 &&
1227 attr->value_tag == IPP_TAG_INTEGER)
1228 job_id = attr->values[0].integer;
1229
1230 if (strcmp(attr->name, "job-k-octets") == 0 &&
1231 attr->value_tag == IPP_TAG_INTEGER)
1232 job_k_octets = attr->values[0].integer;
1233
1234 if (strcmp(attr->name, "job-priority") == 0 &&
1235 attr->value_tag == IPP_TAG_INTEGER)
1236 job_priority = attr->values[0].integer;
1237
1238 if (strcmp(attr->name, "job-state") == 0 &&
1239 attr->value_tag == IPP_TAG_ENUM)
1240 job_status = (ipp_jstate_t)(attr->values[0].integer);
1241
1242 if (strcmp(attr->name, "time-at-creation") == 0 &&
1243 attr->value_tag == IPP_TAG_INTEGER)
1244 job_time = attr->values[0].integer;
1245
1246 if (strcmp(attr->name, "job-name") == 0 &&
1247 attr->value_tag == IPP_TAG_NAME) {
1248 if (!pull_utf8_talloc(frame,
1249 &job_name,
1250 attr->values[0].string.text,
1251 &size)) {
1252 goto out;
1253 }
1254 }
1255
1256 if (strcmp(attr->name, "job-originating-user-name") == 0 &&
1257 attr->value_tag == IPP_TAG_NAME) {
1258 if (!pull_utf8_talloc(frame,
1259 &user_name,
1260 attr->values[0].string.text,
1261 &size)) {
1262 goto out;
1263 }
1264 }
1265
1266 attr = attr->next;
1267 }
1268
1269 /*
1270 * See if we have everything needed...
1271 */
1272
1273 if (user_name == NULL || job_name == NULL || job_id == 0) {
1274 if (attr == NULL)
1275 break;
1276 else
1277 continue;
1278 }
1279
1280 temp->job = job_id;
1281 temp->size = job_k_octets * 1024;
1282 temp->status = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
1283 job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
1284 job_status == IPP_JOB_HELD ? LPQ_PAUSED :
1285 LPQ_PRINTING;
1286 temp->priority = job_priority;
1287 temp->time = job_time;
1288 strlcpy(temp->fs_user, user_name, sizeof(temp->fs_user));
1289 strlcpy(temp->fs_file, job_name, sizeof(temp->fs_file));
1290
1291 qcount ++;
1292
1293 if (attr == NULL)
1294 break;
1295 }
1296
1297 ippDelete(response);
1298 response = NULL;
1299
1300 /*
1301 * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
1302 * following attributes:
1303 *
1304 * attributes-charset
1305 * attributes-natural-language
1306 * requested-attributes
1307 * printer-uri
1308 */
1309
1310 request = ippNew();
1311
1312 request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1313 request->request.op.request_id = 1;
1314
1315 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1316 "attributes-charset", NULL, "utf-8");
1317
1318 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1319 "attributes-natural-language", NULL, language->language);
1320
1321 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1322 "requested-attributes",
1323 (sizeof(pattrs) / sizeof(pattrs[0])),
1324 NULL, pattrs);
1325
1326 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1327 "printer-uri", NULL, uri);
1328
1329 /*
1330 * Do the request and get back a response...
1331 */
1332
1333 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1334 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
1335 ippErrorString(cupsLastError())));
1336 *q = queue;
1337 goto out;
1338 }
1339
1340 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1341 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
1342 ippErrorString(response->request.status.status_code)));
1343 *q = queue;
1344 goto out;
1345 }
1346
1347 /*
1348 * Get the current printer status and convert it to the SAMBA values.
1349 */
1350
1351 if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL) {
1352 if (attr->values[0].integer == IPP_PRINTER_STOPPED)
1353 status->status = LPSTAT_STOPPED;
1354 else
1355 status->status = LPSTAT_OK;
1356 }
1357
1358 if ((attr = ippFindAttribute(response, "printer-state-message",
1359 IPP_TAG_TEXT)) != NULL) {
1360 char *msg = NULL;
1361 if (!pull_utf8_talloc(frame, &msg,
1362 attr->values[0].string.text,
1363 &size)) {
1364 goto out;
1365 }
1366 fstrcpy(status->message, msg);
1367 }
1368
1369 /*
1370 * Return the job queue...
1371 */
1372
1373 *q = queue;
1374
1375 out:
1376 if (response)
1377 ippDelete(response);
1378
1379 if (language)
1380 cupsLangFree(language);
1381
1382 if (http)
1383 httpClose(http);
1384
1385 TALLOC_FREE(frame);
1386 return qcount;
1387 }
1388
1389
1390 /*
1391 * 'cups_queue_pause()' - Pause a print queue.
1392 */
1393
1394 static int cups_queue_pause(int snum)
1395 {
1396 TALLOC_CTX *frame = talloc_stackframe();
1397 int ret = 1; /* Return value */
1398 http_t *http = NULL; /* HTTP connection to server */
1399 ipp_t *request = NULL, /* IPP Request */
1400 *response = NULL; /* IPP Response */
1401 cups_lang_t *language = NULL; /* Default language */
1402 char *printername = NULL;
1403 char *username = NULL;
1404 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1405 size_t size;
1406
1407 DEBUG(5,("cups_queue_pause(%d)\n", snum));
1408
1409 /*
1410 * Make sure we don't ask for passwords...
1411 */
1412
1413 cupsSetPasswordCB(cups_passwd_cb);
1414
1415 /*
1416 * Try to connect to the server...
1417 */
1418
1419 if ((http = cups_connect(frame)) == NULL) {
1420 goto out;
1421 }
1422
1423 /*
1424 * Build an IPP_PAUSE_PRINTER request, which requires the following
1425 * attributes:
1426 *
1427 * attributes-charset
1428 * attributes-natural-language
1429 * printer-uri
1430 * requesting-user-name
1431 */
1432
1433 request = ippNew();
1434
1435 request->request.op.operation_id = IPP_PAUSE_PRINTER;
1436 request->request.op.request_id = 1;
1437
1438 language = cupsLangDefault();
1439
1440 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1441 "attributes-charset", NULL, "utf-8");
1442
1443 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1444 "attributes-natural-language", NULL, language->language);
1445
1446 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
1447 goto out;
1448 }
1449 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1450 printername);
1451
1452 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1453
1454 if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
1455 goto out;
1456 }
1457 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1458 NULL, username);
1459
1460 /*
1461 * Do the request and get back a response...
1462 */
1463
1464 if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1465 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1466 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1467 ippErrorString(cupsLastError())));
1468 } else {
1469 ret = 0;
1470 }
1471 } else {
1472 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1473 ippErrorString(cupsLastError())));
1474 }
1475
1476 out:
1477 if (response)
1478 ippDelete(response);
1479
1480 if (language)
1481 cupsLangFree(language);
1482
1483 if (http)
1484 httpClose(http);
1485
1486 TALLOC_FREE(frame);
1487 return ret;
1488 }
1489
1490
1491 /*
1492 * 'cups_queue_resume()' - Restart a print queue.
1493 */
1494
1495 static int cups_queue_resume(int snum)
1496 {
1497 TALLOC_CTX *frame = talloc_stackframe();
1498 int ret = 1; /* Return value */
1499 http_t *http = NULL; /* HTTP connection to server */
1500 ipp_t *request = NULL, /* IPP Request */
1501 *response = NULL; /* IPP Response */
1502 cups_lang_t *language = NULL; /* Default language */
1503 char *printername = NULL;
1504 char *username = NULL;
1505 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1506 size_t size;
1507
1508 DEBUG(5,("cups_queue_resume(%d)\n", snum));
1509
1510 /*
1511 * Make sure we don't ask for passwords...
1512 */
1513
1514 cupsSetPasswordCB(cups_passwd_cb);
1515
1516 /*
1517 * Try to connect to the server...
1518 */
1519
1520 if ((http = cups_connect(frame)) == NULL) {
1521 goto out;
1522 }
1523
1524 /*
1525 * Build an IPP_RESUME_PRINTER request, which requires the following
1526 * attributes:
1527 *
1528 * attributes-charset
1529 * attributes-natural-language
1530 * printer-uri
1531 * requesting-user-name
1532 */
1533
1534 request = ippNew();
1535
1536 request->request.op.operation_id = IPP_RESUME_PRINTER;
1537 request->request.op.request_id = 1;
1538
1539 language = cupsLangDefault();
1540
1541 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1542 "attributes-charset", NULL, "utf-8");
1543
1544 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1545 "attributes-natural-language", NULL, language->language);
1546
1547 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
1548 goto out;
1549 }
1550 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1551 printername);
1552
1553 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1554
1555 if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
1556 goto out;
1557 }
1558 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1559 NULL, username);
1560
1561 /*
1562 * Do the request and get back a response...
1563 */
1564
1565 if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1566 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1567 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1568 ippErrorString(cupsLastError())));
1569 } else {
1570 ret = 0;
1571 }
1572 } else {
1573 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1574 ippErrorString(cupsLastError())));
1575 }
1576
1577 out:
1578 if (response)
1579 ippDelete(response);
1580
1581 if (language)
1582 cupsLangFree(language);
1583
1584 if (http)
1585 httpClose(http);
1586
1587 TALLOC_FREE(frame);
1588 return ret;
1589 }
1590
1591 /*******************************************************************
1592 * CUPS printing interface definitions...
1593 ******************************************************************/
1594
1595 struct printif cups_printif =
1596 {
1597 PRINT_CUPS,
1598 cups_queue_get,
1599 cups_queue_pause,
1600 cups_queue_resume,
1601 cups_job_delete,
1602 cups_job_pause,
1603 cups_job_resume,
1604 cups_job_submit,
1605 };
1606
1607 bool cups_pull_comment_location(NT_PRINTER_INFO_LEVEL_2 *printer)
1608 {
1609 TALLOC_CTX *frame = talloc_stackframe();
1610 http_t *http = NULL; /* HTTP connection to server */
1611 ipp_t *request = NULL, /* IPP Request */
1612 *response = NULL; /* IPP Response */
1613 ipp_attribute_t *attr; /* Current attribute */
1614 cups_lang_t *language = NULL; /* Default language */
1615 char uri[HTTP_MAX_URI];
1616 char *server = NULL;
1617 char *sharename = NULL;
1618 char *name = NULL;
1619 static const char *requested[] =/* Requested attributes */
1620 {
1621 "printer-name",
1622 "printer-info",
1623 "printer-location"
1624 };
1625 bool ret = False;
1626 size_t size;
1627
1628 DEBUG(5, ("pulling %s location\n", printer->sharename));
1629
1630 /*
1631 * Make sure we don't ask for passwords...
1632 */
1633
1634 cupsSetPasswordCB(cups_passwd_cb);
1635
1636 /*
1637 * Try to connect to the server...
1638 */
1639
1640 if ((http = cups_connect(frame)) == NULL) {
1641 goto out;
1642 }
1643
1644 request = ippNew();
1645
1646 request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1647 request->request.op.request_id = 1;
1648
1649 language = cupsLangDefault();
1650
1651 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1652 "attributes-charset", NULL, "utf-8");
1653
1654 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1655 "attributes-natural-language", NULL, language->language);
1656
1657 if (lp_cups_server() != NULL && strlen(lp_cups_server()) > 0) {
1658 if (!push_utf8_talloc(frame, &server, lp_cups_server(), &size)) {
1659 goto out;
1660 }
1661 } else {
1662 server = talloc_strdup(frame,cupsServer());
1663 }
1664 if (server) {
1665 goto out;
1666 }
1667 if (!push_utf8_talloc(frame, &sharename, printer->sharename, &size)) {
1668 goto out;
1669 }
1670 slprintf(uri, sizeof(uri) - 1, "ipp://%s/printers/%s",
1671 server, sharename);
1672
1673 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1674 "printer-uri", NULL, uri);
1675
1676 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1677 "requested-attributes",
1678 (sizeof(requested) / sizeof(requested[0])),
1679 NULL, requested);
1680
1681 /*
1682 * Do the request and get back a response...
1683 */
1684
1685 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1686 DEBUG(0,("Unable to get printer attributes - %s\n",
1687 ippErrorString(cupsLastError())));
1688 goto out;
1689 }
1690
1691 for (attr = response->attrs; attr != NULL;) {
1692 /*
1693 * Skip leading attributes until we hit a printer...
1694 */
1695
1696 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
1697 attr = attr->next;
1698
1699 if (attr == NULL)
1700 break;
1701
1702 /*
1703 * Pull the needed attributes from this printer...
1704 */
1705
1706 while ( attr && (attr->group_tag == IPP_TAG_PRINTER) ) {
1707 if (strcmp(attr->name, "printer-name") == 0 &&
1708 attr->value_tag == IPP_TAG_NAME) {
1709 if (!pull_utf8_talloc(frame,
1710 &name,
1711 attr->values[0].string.text,
1712 &size)) {
1713 goto out;
1714 }
1715 }
1716
1717 /* Grab the comment if we don't have one */
1718 if ( (strcmp(attr->name, "printer-info") == 0)
1719 && (attr->value_tag == IPP_TAG_TEXT)
1720 && !strlen(printer->comment) )
1721 {
1722 char *comment = NULL;
1723 if (!pull_utf8_talloc(frame,
1724 &comment,
1725 attr->values[0].string.text,
1726 &size)) {
1727 goto out;
1728 }
1729 DEBUG(5,("cups_pull_comment_location: Using cups comment: %s\n",
1730 comment));
1731 strlcpy(printer->comment,
1732 comment,
1733 sizeof(printer->comment));
1734 }
1735
1736 /* Grab the location if we don't have one */
1737 if ( (strcmp(attr->name, "printer-location") == 0)
1738 && (attr->value_tag == IPP_TAG_TEXT)
1739 && !strlen(printer->location) )
1740 {
1741 char *location = NULL;
1742 if (!pull_utf8_talloc(frame,
1743 &location,
1744 attr->values[0].string.text,
1745 &size)) {
1746 goto out;
1747 }
1748 DEBUG(5,("cups_pull_comment_location: Using cups location: %s\n",
1749 location));
1750 strlcpy(printer->location,
1751 location,
1752 sizeof(printer->location));
1753 }
1754
1755 attr = attr->next;
1756 }
1757
1758 /*
1759 * We have everything needed...
1760 */
1761
1762 if (name != NULL)
1763 break;
1764 }
1765
1766 ret = True;
1767
1768 out:
1769 if (response)
1770 ippDelete(response);
1771
1772 if (language)
1773 cupsLangFree(language);
1774
1775 if (http)
1776 httpClose(http);
1777
1778 TALLOC_FREE(frame);
1779 return ret;
1780 }
1781
1782 #else
1783 /* this keeps fussy compilers happy */
1784 void print_cups_dummy(void);
1785 void print_cups_dummy(void) {}
1786 #endif /* HAVE_CUPS */