?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
s3/docs: Add hint about getfattr in man vfs_acl_xattr.
[Samba/bb.git] / source / printing / print_cups.c
blob261116a89eac43279ed03e4415248d407a7cbf6a
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 close_all_print_db();
429
430 if (!reinit_after_fork(smbd_messaging_context(),
431 smbd_event_context(), true)) {
432 DEBUG(0,("cups_pcap_load_async: reinit_after_fork() failed\n"));
433 smb_panic("cups_pcap_load_async: reinit_after_fork() failed");
434 }
435
436 close(fds[0]);
437 cups_cache_reload_async(fds[1]);
438 close(fds[1]);
439 _exit(0);
440 }
441
442 static void cups_async_callback(struct event_context *event_ctx,
443 struct fd_event *event,
444 uint16 flags,
445 void *p)
446 {
447 TALLOC_CTX *frame = talloc_stackframe();
448 int fd = *(int *)p;
449 struct pcap_cache *tmp_pcap_cache = NULL;
450
451 DEBUG(5,("cups_async_callback: callback received for printer data. "
452 "fd = %d\n", fd));
453
454 while (1) {
455 char *name = NULL, *info = NULL;
456 size_t namelen = 0, infolen = 0;
457 ssize_t ret = -1;
458
459 ret = sys_read(fd, &namelen, sizeof(namelen));
460 if (ret == 0) {
461 /* EOF */
462 break;
463 }
464 if (ret != sizeof(namelen)) {
465 DEBUG(10,("cups_async_callback: namelen read failed %d %s\n",
466 errno, strerror(errno)));
467 break;
468 }
469
470 DEBUG(11,("cups_async_callback: read namelen %u\n",
471 (unsigned int)namelen));
472
473 ret = sys_read(fd, &infolen, sizeof(infolen));
474 if (ret == 0) {
475 /* EOF */
476 break;
477 }
478 if (ret != sizeof(infolen)) {
479 DEBUG(10,("cups_async_callback: infolen read failed %s\n",
480 strerror(errno)));
481 break;
482 }
483
484 DEBUG(11,("cups_async_callback: read infolen %u\n",
485 (unsigned int)infolen));
486
487 if (namelen) {
488 name = TALLOC_ARRAY(frame, char, namelen);
489 if (!name) {
490 break;
491 }
492 ret = sys_read(fd, name, namelen);
493 if (ret == 0) {
494 /* EOF */
495 break;
496 }
497 if (ret != namelen) {
498 DEBUG(10,("cups_async_callback: name read failed %s\n",
499 strerror(errno)));
500 break;
501 }
502 DEBUG(11,("cups_async_callback: read name %s\n",
503 name));
504 } else {
505 name = NULL;
506 }
507 if (infolen) {
508 info = TALLOC_ARRAY(frame, char, infolen);
509 if (!info) {
510 break;
511 }
512 ret = sys_read(fd, info, infolen);
513 if (ret == 0) {
514 /* EOF */
515 break;
516 }
517 if (ret != infolen) {
518 DEBUG(10,("cups_async_callback: info read failed %s\n",
519 strerror(errno)));
520 break;
521 }
522 DEBUG(11,("cups_async_callback: read info %s\n",
523 info));
524 } else {
525 info = NULL;
526 }
527
528 /* Add to our local pcap cache. */
529 pcap_cache_add_specific(&tmp_pcap_cache, name, info);
530 TALLOC_FREE(name);
531 TALLOC_FREE(info);
532 }
533
534 TALLOC_FREE(frame);
535 if (tmp_pcap_cache) {
536 /* We got a namelist, replace our local cache. */
537 pcap_cache_destroy_specific(&local_pcap_copy);
538 local_pcap_copy = tmp_pcap_cache;
539
540 /* And the systemwide pcap cache. */
541 pcap_cache_replace(local_pcap_copy);
542 } else {
543 DEBUG(2,("cups_async_callback: failed to read a new "
544 "printer list\n"));
545 }
546 close(fd);
547 TALLOC_FREE(p);
548 TALLOC_FREE(cache_fd_event);
549 }
550
551 bool cups_cache_reload(void)
552 {
553 int *p_pipe_fd = TALLOC_P(NULL, int);
554
555 if (!p_pipe_fd) {
556 return false;
557 }
558
559 *p_pipe_fd = -1;
560
561 /* Set up an async refresh. */
562 if (!cups_pcap_load_async(p_pipe_fd)) {
563 return false;
564 }
565 if (!local_pcap_copy) {
566 /* We have no local cache, wait directly for
567 * async refresh to complete.
568 */
569 DEBUG(10,("cups_cache_reload: sync read on fd %d\n",
570 *p_pipe_fd ));
571
572 cups_async_callback(smbd_event_context(),
573 NULL,
574 EVENT_FD_READ,
575 (void *)p_pipe_fd);
576 if (!local_pcap_copy) {
577 return false;
578 }
579 } else {
580 /* Replace the system cache with our
581 * local copy. */
582 pcap_cache_replace(local_pcap_copy);
583
584 DEBUG(10,("cups_cache_reload: async read on fd %d\n",
585 *p_pipe_fd ));
586
587 /* Trigger an event when the pipe can be read. */
588 cache_fd_event = event_add_fd(smbd_event_context(),
589 NULL, *p_pipe_fd,
590 EVENT_FD_READ,
591 cups_async_callback,
592 (void *)p_pipe_fd);
593 if (!cache_fd_event) {
594 close(*p_pipe_fd);
595 TALLOC_FREE(p_pipe_fd);
596 return false;
597 }
598 }
599 return true;
600 }
601
602 /*
603 * 'cups_job_delete()' - Delete a job.
604 */
605
606 static int cups_job_delete(const char *sharename, const char *lprm_command, struct printjob *pjob)
607 {
608 TALLOC_CTX *frame = talloc_stackframe();
609 int ret = 1; /* Return value */
610 http_t *http = NULL; /* HTTP connection to server */
611 ipp_t *request = NULL, /* IPP Request */
612 *response = NULL; /* IPP Response */
613 cups_lang_t *language = NULL; /* Default language */
614 char *user = NULL;
615 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
616 size_t size;
617
618 DEBUG(5,("cups_job_delete(%s, %p (%d))\n", sharename, pjob, pjob->sysjob));
619
620 /*
621 * Make sure we don't ask for passwords...
622 */
623
624 cupsSetPasswordCB(cups_passwd_cb);
625
626 /*
627 * Try to connect to the server...
628 */
629
630 if ((http = cups_connect(frame)) == NULL) {
631 goto out;
632 }
633
634 /*
635 * Build an IPP_CANCEL_JOB request, which requires the following
636 * attributes:
637 *
638 * attributes-charset
639 * attributes-natural-language
640 * job-uri
641 * requesting-user-name
642 */
643
644 request = ippNew();
645
646 request->request.op.operation_id = IPP_CANCEL_JOB;
647 request->request.op.request_id = 1;
648
649 language = cupsLangDefault();
650
651 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
652 "attributes-charset", NULL, "utf-8");
653
654 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
655 "attributes-natural-language", NULL, language->language);
656
657 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
658
659 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
660
661 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
662 goto out;
663 }
664
665 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
666 NULL, user);
667
668 /*
669 * Do the request and get back a response...
670 */
671
672 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
673 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
674 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
675 ippErrorString(cupsLastError())));
676 } else {
677 ret = 0;
678 }
679 } else {
680 DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
681 ippErrorString(cupsLastError())));
682 }
683
684 out:
685 if (response)
686 ippDelete(response);
687
688 if (language)
689 cupsLangFree(language);
690
691 if (http)
692 httpClose(http);
693
694 TALLOC_FREE(frame);
695 return ret;
696 }
697
698
699 /*
700 * 'cups_job_pause()' - Pause a job.
701 */
702
703 static int cups_job_pause(int snum, struct printjob *pjob)
704 {
705 TALLOC_CTX *frame = talloc_stackframe();
706 int ret = 1; /* Return value */
707 http_t *http = NULL; /* HTTP connection to server */
708 ipp_t *request = NULL, /* IPP Request */
709 *response = NULL; /* IPP Response */
710 cups_lang_t *language = NULL; /* Default language */
711 char *user = NULL;
712 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
713 size_t size;
714
715 DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
716
717 /*
718 * Make sure we don't ask for passwords...
719 */
720
721 cupsSetPasswordCB(cups_passwd_cb);
722
723 /*
724 * Try to connect to the server...
725 */
726
727 if ((http = cups_connect(frame)) == NULL) {
728 goto out;
729 }
730
731 /*
732 * Build an IPP_HOLD_JOB request, which requires the following
733 * attributes:
734 *
735 * attributes-charset
736 * attributes-natural-language
737 * job-uri
738 * requesting-user-name
739 */
740
741 request = ippNew();
742
743 request->request.op.operation_id = IPP_HOLD_JOB;
744 request->request.op.request_id = 1;
745
746 language = cupsLangDefault();
747
748 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
749 "attributes-charset", NULL, "utf-8");
750
751 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
752 "attributes-natural-language", NULL, language->language);
753
754 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
755
756 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
757
758 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
759 goto out;
760 }
761 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
762 NULL, user);
763
764 /*
765 * Do the request and get back a response...
766 */
767
768 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
769 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
770 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
771 ippErrorString(cupsLastError())));
772 } else {
773 ret = 0;
774 }
775 } else {
776 DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
777 ippErrorString(cupsLastError())));
778 }
779
780 out:
781 if (response)
782 ippDelete(response);
783
784 if (language)
785 cupsLangFree(language);
786
787 if (http)
788 httpClose(http);
789
790 TALLOC_FREE(frame);
791 return ret;
792 }
793
794
795 /*
796 * 'cups_job_resume()' - Resume a paused job.
797 */
798
799 static int cups_job_resume(int snum, struct printjob *pjob)
800 {
801 TALLOC_CTX *frame = talloc_stackframe();
802 int ret = 1; /* Return value */
803 http_t *http = NULL; /* HTTP connection to server */
804 ipp_t *request = NULL, /* IPP Request */
805 *response = NULL; /* IPP Response */
806 cups_lang_t *language = NULL; /* Default language */
807 char *user = NULL;
808 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
809 size_t size;
810
811 DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
812
813 /*
814 * Make sure we don't ask for passwords...
815 */
816
817 cupsSetPasswordCB(cups_passwd_cb);
818
819 /*
820 * Try to connect to the server...
821 */
822
823 if ((http = cups_connect(frame)) == NULL) {
824 goto out;
825 }
826
827 /*
828 * Build an IPP_RELEASE_JOB request, which requires the following
829 * attributes:
830 *
831 * attributes-charset
832 * attributes-natural-language
833 * job-uri
834 * requesting-user-name
835 */
836
837 request = ippNew();
838
839 request->request.op.operation_id = IPP_RELEASE_JOB;
840 request->request.op.request_id = 1;
841
842 language = cupsLangDefault();
843
844 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
845 "attributes-charset", NULL, "utf-8");
846
847 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
848 "attributes-natural-language", NULL, language->language);
849
850 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
851
852 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
853
854 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
855 goto out;
856 }
857 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
858 NULL, user);
859
860 /*
861 * Do the request and get back a response...
862 */
863
864 if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
865 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
866 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
867 ippErrorString(cupsLastError())));
868 } else {
869 ret = 0;
870 }
871 } else {
872 DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
873 ippErrorString(cupsLastError())));
874 }
875
876 out:
877 if (response)
878 ippDelete(response);
879
880 if (language)
881 cupsLangFree(language);
882
883 if (http)
884 httpClose(http);
885
886 TALLOC_FREE(frame);
887 return ret;
888 }
889
890
891 /*
892 * 'cups_job_submit()' - Submit a job for printing.
893 */
894
895 static int cups_job_submit(int snum, struct printjob *pjob)
896 {
897 TALLOC_CTX *frame = talloc_stackframe();
898 int ret = 1; /* Return value */
899 http_t *http = NULL; /* HTTP connection to server */
900 ipp_t *request = NULL, /* IPP Request */
901 *response = NULL; /* IPP Response */
902 cups_lang_t *language = NULL; /* Default language */
903 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
904 const char *clientname = NULL; /* hostname of client for job-originating-host attribute */
905 char *new_jobname = NULL;
906 int num_options = 0;
907 cups_option_t *options = NULL;
908 char *printername = NULL;
909 char *user = NULL;
910 char *jobname = NULL;
911 char *cupsoptions = NULL;
912 char *filename = NULL;
913 size_t size;
914 char addr[INET6_ADDRSTRLEN];
915
916 DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
917
918 /*
919 * Make sure we don't ask for passwords...
920 */
921
922 cupsSetPasswordCB(cups_passwd_cb);
923
924 /*
925 * Try to connect to the server...
926 */
927
928 if ((http = cups_connect(frame)) == NULL) {
929 goto out;
930 }
931
932 /*
933 * Build an IPP_PRINT_JOB request, which requires the following
934 * attributes:
935 *
936 * attributes-charset
937 * attributes-natural-language
938 * printer-uri
939 * requesting-user-name
940 * [document-data]
941 */
942
943 request = ippNew();
944
945 request->request.op.operation_id = IPP_PRINT_JOB;
946 request->request.op.request_id = 1;
947
948 language = cupsLangDefault();
949
950 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
951 "attributes-charset", NULL, "utf-8");
952
953 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
954 "attributes-natural-language", NULL, language->language);
955
956 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
957 goto out;
958 }
959 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
960 printername);
961
962 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
963 "printer-uri", NULL, uri);
964
965 if (!push_utf8_talloc(frame, &user, pjob->user, &size)) {
966 goto out;
967 }
968 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
969 NULL, user);
970
971 clientname = client_name(get_client_fd());
972 if (strcmp(clientname, "UNKNOWN") == 0) {
973 clientname = client_addr(get_client_fd(),addr,sizeof(addr));
974 }
975
976 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
977 "job-originating-host-name", NULL,
978 clientname);
979
980 if (!push_utf8_talloc(frame, &jobname, pjob->jobname, &size)) {
981 goto out;
982 }
983 new_jobname = talloc_asprintf(frame,
984 "%s%.8u %s", PRINT_SPOOL_PREFIX,
985 (unsigned int)pjob->smbjob,
986 jobname);
987 if (new_jobname == NULL) {
988 goto out;
989 }
990
991 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
992 new_jobname);
993
994 /*
995 * add any options defined in smb.conf
996 */
997
998 if (!push_utf8_talloc(frame, &cupsoptions, lp_cups_options(snum), &size)) {
999 goto out;
1000 }
1001 num_options = 0;
1002 options = NULL;
1003 num_options = cupsParseOptions(cupsoptions, num_options, &options);
1004
1005 if ( num_options )
1006 cupsEncodeOptions(request, num_options, options);
1007
1008 /*
1009 * Do the request and get back a response...
1010 */
1011
1012 slprintf(uri, sizeof(uri) - 1, "/printers/%s", printername);
1013
1014 if (!push_utf8_talloc(frame, &filename, pjob->filename, &size)) {
1015 goto out;
1016 }
1017 if ((response = cupsDoFileRequest(http, request, uri, pjob->filename)) != NULL) {
1018 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1019 DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
1020 ippErrorString(cupsLastError())));
1021 } else {
1022 ret = 0;
1023 }
1024 } else {
1025 DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
1026 ippErrorString(cupsLastError())));
1027 }
1028
1029 if ( ret == 0 )
1030 unlink(pjob->filename);
1031 /* else print_job_end will do it for us */
1032
1033 out:
1034 if (response)
1035 ippDelete(response);
1036
1037 if (language)
1038 cupsLangFree(language);
1039
1040 if (http)
1041 httpClose(http);
1042
1043 TALLOC_FREE(frame);
1044
1045 return ret;
1046 }
1047
1048 /*
1049 * 'cups_queue_get()' - Get all the jobs in the print queue.
1050 */
1051
1052 static int cups_queue_get(const char *sharename,
1053 enum printing_types printing_type,
1054 char *lpq_command,
1055 print_queue_struct **q,
1056 print_status_struct *status)
1057 {
1058 TALLOC_CTX *frame = talloc_stackframe();
1059 char *printername = NULL;
1060 http_t *http = NULL; /* HTTP connection to server */
1061 ipp_t *request = NULL, /* IPP Request */
1062 *response = NULL; /* IPP Response */
1063 ipp_attribute_t *attr = NULL; /* Current attribute */
1064 cups_lang_t *language = NULL; /* Default language */
1065 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1066 int qcount = 0, /* Number of active queue entries */
1067 qalloc = 0; /* Number of queue entries allocated */
1068 print_queue_struct *queue = NULL, /* Queue entries */
1069 *temp; /* Temporary pointer for queue */
1070 char *user_name = NULL, /* job-originating-user-name attribute */
1071 *job_name = NULL; /* job-name attribute */
1072 int job_id; /* job-id attribute */
1073 int job_k_octets; /* job-k-octets attribute */
1074 time_t job_time; /* time-at-creation attribute */
1075 ipp_jstate_t job_status; /* job-status attribute */
1076 int job_priority; /* job-priority attribute */
1077 size_t size;
1078 static const char *jattrs[] = /* Requested job attributes */
1079 {
1080 "job-id",
1081 "job-k-octets",
1082 "job-name",
1083 "job-originating-user-name",
1084 "job-priority",
1085 "job-state",
1086 "time-at-creation",
1087 };
1088 static const char *pattrs[] = /* Requested printer attributes */
1089 {
1090 "printer-state",
1091 "printer-state-message"
1092 };
1093
1094 *q = NULL;
1095
1096 /* HACK ALERT!!! The problem with support the 'printer name'
1097 option is that we key the tdb off the sharename. So we will
1098 overload the lpq_command string to pass in the printername
1099 (which is basically what we do for non-cups printers ... using
1100 the lpq_command to get the queue listing). */
1101
1102 if (!push_utf8_talloc(frame, &printername, lpq_command, &size)) {
1103 goto out;
1104 }
1105 DEBUG(5,("cups_queue_get(%s, %p, %p)\n", lpq_command, q, status));
1106
1107 /*
1108 * Make sure we don't ask for passwords...
1109 */
1110
1111 cupsSetPasswordCB(cups_passwd_cb);
1112
1113 /*
1114 * Try to connect to the server...
1115 */
1116
1117 if ((http = cups_connect(frame)) == NULL) {
1118 goto out;
1119 }
1120
1121 /*
1122 * Generate the printer URI...
1123 */
1124
1125 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", printername);
1126
1127 /*
1128 * Build an IPP_GET_JOBS request, which requires the following
1129 * attributes:
1130 *
1131 * attributes-charset
1132 * attributes-natural-language
1133 * requested-attributes
1134 * printer-uri
1135 */
1136
1137 request = ippNew();
1138
1139 request->request.op.operation_id = IPP_GET_JOBS;
1140 request->request.op.request_id = 1;
1141
1142 language = cupsLangDefault();
1143
1144 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1145 "attributes-charset", NULL, "utf-8");
1146
1147 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1148 "attributes-natural-language", NULL, language->language);
1149
1150 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1151 "requested-attributes",
1152 (sizeof(jattrs) / sizeof(jattrs[0])),
1153 NULL, jattrs);
1154
1155 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1156 "printer-uri", NULL, uri);
1157
1158 /*
1159 * Do the request and get back a response...
1160 */
1161
1162 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1163 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
1164 ippErrorString(cupsLastError())));
1165 goto out;
1166 }
1167
1168 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1169 DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
1170 ippErrorString(response->request.status.status_code)));
1171 goto out;
1172 }
1173
1174 /*
1175 * Process the jobs...
1176 */
1177
1178 qcount = 0;
1179 qalloc = 0;
1180 queue = NULL;
1181
1182 for (attr = response->attrs; attr != NULL; attr = attr->next) {
1183 /*
1184 * Skip leading attributes until we hit a job...
1185 */
1186
1187 while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
1188 attr = attr->next;
1189
1190 if (attr == NULL)
1191 break;
1192
1193 /*
1194 * Allocate memory as needed...
1195 */
1196 if (qcount >= qalloc) {
1197 qalloc += 16;
1198
1199 queue = SMB_REALLOC_ARRAY(queue, print_queue_struct, qalloc);
1200
1201 if (queue == NULL) {
1202 DEBUG(0,("cups_queue_get: Not enough memory!"));
1203 qcount = 0;
1204 goto out;
1205 }
1206 }
1207
1208 temp = queue + qcount;
1209 memset(temp, 0, sizeof(print_queue_struct));
1210
1211 /*
1212 * Pull the needed attributes from this job...
1213 */
1214
1215 job_id = 0;
1216 job_priority = 50;
1217 job_status = IPP_JOB_PENDING;
1218 job_time = 0;
1219 job_k_octets = 0;
1220 user_name = NULL;
1221 job_name = NULL;
1222
1223 while (attr != NULL && attr->group_tag == IPP_TAG_JOB) {
1224 if (attr->name == NULL) {
1225 attr = attr->next;
1226 break;
1227 }
1228
1229 if (strcmp(attr->name, "job-id") == 0 &&
1230 attr->value_tag == IPP_TAG_INTEGER)
1231 job_id = attr->values[0].integer;
1232
1233 if (strcmp(attr->name, "job-k-octets") == 0 &&
1234 attr->value_tag == IPP_TAG_INTEGER)
1235 job_k_octets = attr->values[0].integer;
1236
1237 if (strcmp(attr->name, "job-priority") == 0 &&
1238 attr->value_tag == IPP_TAG_INTEGER)
1239 job_priority = attr->values[0].integer;
1240
1241 if (strcmp(attr->name, "job-state") == 0 &&
1242 attr->value_tag == IPP_TAG_ENUM)
1243 job_status = (ipp_jstate_t)(attr->values[0].integer);
1244
1245 if (strcmp(attr->name, "time-at-creation") == 0 &&
1246 attr->value_tag == IPP_TAG_INTEGER)
1247 job_time = attr->values[0].integer;
1248
1249 if (strcmp(attr->name, "job-name") == 0 &&
1250 attr->value_tag == IPP_TAG_NAME) {
1251 if (!pull_utf8_talloc(frame,
1252 &job_name,
1253 attr->values[0].string.text,
1254 &size)) {
1255 goto out;
1256 }
1257 }
1258
1259 if (strcmp(attr->name, "job-originating-user-name") == 0 &&
1260 attr->value_tag == IPP_TAG_NAME) {
1261 if (!pull_utf8_talloc(frame,
1262 &user_name,
1263 attr->values[0].string.text,
1264 &size)) {
1265 goto out;
1266 }
1267 }
1268
1269 attr = attr->next;
1270 }
1271
1272 /*
1273 * See if we have everything needed...
1274 */
1275
1276 if (user_name == NULL || job_name == NULL || job_id == 0) {
1277 if (attr == NULL)
1278 break;
1279 else
1280 continue;
1281 }
1282
1283 temp->job = job_id;
1284 temp->size = job_k_octets * 1024;
1285 temp->status = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
1286 job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
1287 job_status == IPP_JOB_HELD ? LPQ_PAUSED :
1288 LPQ_PRINTING;
1289 temp->priority = job_priority;
1290 temp->time = job_time;
1291 strlcpy(temp->fs_user, user_name, sizeof(temp->fs_user));
1292 strlcpy(temp->fs_file, job_name, sizeof(temp->fs_file));
1293
1294 qcount ++;
1295
1296 if (attr == NULL)
1297 break;
1298 }
1299
1300 ippDelete(response);
1301 response = NULL;
1302
1303 /*
1304 * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
1305 * following attributes:
1306 *
1307 * attributes-charset
1308 * attributes-natural-language
1309 * requested-attributes
1310 * printer-uri
1311 */
1312
1313 request = ippNew();
1314
1315 request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1316 request->request.op.request_id = 1;
1317
1318 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1319 "attributes-charset", NULL, "utf-8");
1320
1321 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1322 "attributes-natural-language", NULL, language->language);
1323
1324 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1325 "requested-attributes",
1326 (sizeof(pattrs) / sizeof(pattrs[0])),
1327 NULL, pattrs);
1328
1329 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1330 "printer-uri", NULL, uri);
1331
1332 /*
1333 * Do the request and get back a response...
1334 */
1335
1336 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1337 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
1338 ippErrorString(cupsLastError())));
1339 *q = queue;
1340 goto out;
1341 }
1342
1343 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1344 DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
1345 ippErrorString(response->request.status.status_code)));
1346 *q = queue;
1347 goto out;
1348 }
1349
1350 /*
1351 * Get the current printer status and convert it to the SAMBA values.
1352 */
1353
1354 if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL) {
1355 if (attr->values[0].integer == IPP_PRINTER_STOPPED)
1356 status->status = LPSTAT_STOPPED;
1357 else
1358 status->status = LPSTAT_OK;
1359 }
1360
1361 if ((attr = ippFindAttribute(response, "printer-state-message",
1362 IPP_TAG_TEXT)) != NULL) {
1363 char *msg = NULL;
1364 if (!pull_utf8_talloc(frame, &msg,
1365 attr->values[0].string.text,
1366 &size)) {
1367 SAFE_FREE(queue);
1368 qcount = 0;
1369 goto out;
1370 }
1371 fstrcpy(status->message, msg);
1372 }
1373
1374 /*
1375 * Return the job queue...
1376 */
1377
1378 *q = queue;
1379
1380 out:
1381 if (response)
1382 ippDelete(response);
1383
1384 if (language)
1385 cupsLangFree(language);
1386
1387 if (http)
1388 httpClose(http);
1389
1390 TALLOC_FREE(frame);
1391 return qcount;
1392 }
1393
1394
1395 /*
1396 * 'cups_queue_pause()' - Pause a print queue.
1397 */
1398
1399 static int cups_queue_pause(int snum)
1400 {
1401 TALLOC_CTX *frame = talloc_stackframe();
1402 int ret = 1; /* Return value */
1403 http_t *http = NULL; /* HTTP connection to server */
1404 ipp_t *request = NULL, /* IPP Request */
1405 *response = NULL; /* IPP Response */
1406 cups_lang_t *language = NULL; /* Default language */
1407 char *printername = NULL;
1408 char *username = NULL;
1409 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1410 size_t size;
1411
1412 DEBUG(5,("cups_queue_pause(%d)\n", snum));
1413
1414 /*
1415 * Make sure we don't ask for passwords...
1416 */
1417
1418 cupsSetPasswordCB(cups_passwd_cb);
1419
1420 /*
1421 * Try to connect to the server...
1422 */
1423
1424 if ((http = cups_connect(frame)) == NULL) {
1425 goto out;
1426 }
1427
1428 /*
1429 * Build an IPP_PAUSE_PRINTER request, which requires the following
1430 * attributes:
1431 *
1432 * attributes-charset
1433 * attributes-natural-language
1434 * printer-uri
1435 * requesting-user-name
1436 */
1437
1438 request = ippNew();
1439
1440 request->request.op.operation_id = IPP_PAUSE_PRINTER;
1441 request->request.op.request_id = 1;
1442
1443 language = cupsLangDefault();
1444
1445 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1446 "attributes-charset", NULL, "utf-8");
1447
1448 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1449 "attributes-natural-language", NULL, language->language);
1450
1451 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
1452 goto out;
1453 }
1454 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1455 printername);
1456
1457 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1458
1459 if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
1460 goto out;
1461 }
1462 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1463 NULL, username);
1464
1465 /*
1466 * Do the request and get back a response...
1467 */
1468
1469 if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1470 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1471 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1472 ippErrorString(cupsLastError())));
1473 } else {
1474 ret = 0;
1475 }
1476 } else {
1477 DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1478 ippErrorString(cupsLastError())));
1479 }
1480
1481 out:
1482 if (response)
1483 ippDelete(response);
1484
1485 if (language)
1486 cupsLangFree(language);
1487
1488 if (http)
1489 httpClose(http);
1490
1491 TALLOC_FREE(frame);
1492 return ret;
1493 }
1494
1495
1496 /*
1497 * 'cups_queue_resume()' - Restart a print queue.
1498 */
1499
1500 static int cups_queue_resume(int snum)
1501 {
1502 TALLOC_CTX *frame = talloc_stackframe();
1503 int ret = 1; /* Return value */
1504 http_t *http = NULL; /* HTTP connection to server */
1505 ipp_t *request = NULL, /* IPP Request */
1506 *response = NULL; /* IPP Response */
1507 cups_lang_t *language = NULL; /* Default language */
1508 char *printername = NULL;
1509 char *username = NULL;
1510 char uri[HTTP_MAX_URI]; /* printer-uri attribute */
1511 size_t size;
1512
1513 DEBUG(5,("cups_queue_resume(%d)\n", snum));
1514
1515 /*
1516 * Make sure we don't ask for passwords...
1517 */
1518
1519 cupsSetPasswordCB(cups_passwd_cb);
1520
1521 /*
1522 * Try to connect to the server...
1523 */
1524
1525 if ((http = cups_connect(frame)) == NULL) {
1526 goto out;
1527 }
1528
1529 /*
1530 * Build an IPP_RESUME_PRINTER request, which requires the following
1531 * attributes:
1532 *
1533 * attributes-charset
1534 * attributes-natural-language
1535 * printer-uri
1536 * requesting-user-name
1537 */
1538
1539 request = ippNew();
1540
1541 request->request.op.operation_id = IPP_RESUME_PRINTER;
1542 request->request.op.request_id = 1;
1543
1544 language = cupsLangDefault();
1545
1546 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1547 "attributes-charset", NULL, "utf-8");
1548
1549 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1550 "attributes-natural-language", NULL, language->language);
1551
1552 if (!push_utf8_talloc(frame, &printername, PRINTERNAME(snum), &size)) {
1553 goto out;
1554 }
1555 slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1556 printername);
1557
1558 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1559
1560 if (!push_utf8_talloc(frame, &username, current_user_info.unix_name, &size)) {
1561 goto out;
1562 }
1563 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1564 NULL, username);
1565
1566 /*
1567 * Do the request and get back a response...
1568 */
1569
1570 if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1571 if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1572 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1573 ippErrorString(cupsLastError())));
1574 } else {
1575 ret = 0;
1576 }
1577 } else {
1578 DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1579 ippErrorString(cupsLastError())));
1580 }
1581
1582 out:
1583 if (response)
1584 ippDelete(response);
1585
1586 if (language)
1587 cupsLangFree(language);
1588
1589 if (http)
1590 httpClose(http);
1591
1592 TALLOC_FREE(frame);
1593 return ret;
1594 }
1595
1596 /*******************************************************************
1597 * CUPS printing interface definitions...
1598 ******************************************************************/
1599
1600 struct printif cups_printif =
1601 {
1602 PRINT_CUPS,
1603 cups_queue_get,
1604 cups_queue_pause,
1605 cups_queue_resume,
1606 cups_job_delete,
1607 cups_job_pause,
1608 cups_job_resume,
1609 cups_job_submit,
1610 };
1611
1612 bool cups_pull_comment_location(NT_PRINTER_INFO_LEVEL_2 *printer)
1613 {
1614 TALLOC_CTX *frame = talloc_stackframe();
1615 http_t *http = NULL; /* HTTP connection to server */
1616 ipp_t *request = NULL, /* IPP Request */
1617 *response = NULL; /* IPP Response */
1618 ipp_attribute_t *attr; /* Current attribute */
1619 cups_lang_t *language = NULL; /* Default language */
1620 char uri[HTTP_MAX_URI];
1621 char *server = NULL;
1622 char *sharename = NULL;
1623 char *name = NULL;
1624 static const char *requested[] =/* Requested attributes */
1625 {
1626 "printer-name",
1627 "printer-info",
1628 "printer-location"
1629 };
1630 bool ret = False;
1631 size_t size;
1632
1633 DEBUG(5, ("pulling %s location\n", printer->sharename));
1634
1635 /*
1636 * Make sure we don't ask for passwords...
1637 */
1638
1639 cupsSetPasswordCB(cups_passwd_cb);
1640
1641 /*
1642 * Try to connect to the server...
1643 */
1644
1645 if ((http = cups_connect(frame)) == NULL) {
1646 goto out;
1647 }
1648
1649 request = ippNew();
1650
1651 request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
1652 request->request.op.request_id = 1;
1653
1654 language = cupsLangDefault();
1655
1656 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1657 "attributes-charset", NULL, "utf-8");
1658
1659 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1660 "attributes-natural-language", NULL, language->language);
1661
1662 if (lp_cups_server() != NULL && strlen(lp_cups_server()) > 0) {
1663 if (!push_utf8_talloc(frame, &server, lp_cups_server(), &size)) {
1664 goto out;
1665 }
1666 } else {
1667 server = talloc_strdup(frame,cupsServer());
1668 }
1669 if (server) {
1670 goto out;
1671 }
1672 if (!push_utf8_talloc(frame, &sharename, printer->sharename, &size)) {
1673 goto out;
1674 }
1675 slprintf(uri, sizeof(uri) - 1, "ipp://%s/printers/%s",
1676 server, sharename);
1677
1678 ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
1679 "printer-uri", NULL, uri);
1680
1681 ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
1682 "requested-attributes",
1683 (sizeof(requested) / sizeof(requested[0])),
1684 NULL, requested);
1685
1686 /*
1687 * Do the request and get back a response...
1688 */
1689
1690 if ((response = cupsDoRequest(http, request, "/")) == NULL) {
1691 DEBUG(0,("Unable to get printer attributes - %s\n",
1692 ippErrorString(cupsLastError())));
1693 goto out;
1694 }
1695
1696 for (attr = response->attrs; attr != NULL;) {
1697 /*
1698 * Skip leading attributes until we hit a printer...
1699 */
1700
1701 while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
1702 attr = attr->next;
1703
1704 if (attr == NULL)
1705 break;
1706
1707 /*
1708 * Pull the needed attributes from this printer...
1709 */
1710
1711 while ( attr && (attr->group_tag == IPP_TAG_PRINTER) ) {
1712 if (strcmp(attr->name, "printer-name") == 0 &&
1713 attr->value_tag == IPP_TAG_NAME) {
1714 if (!pull_utf8_talloc(frame,
1715 &name,
1716 attr->values[0].string.text,
1717 &size)) {
1718 goto out;
1719 }
1720 }
1721
1722 /* Grab the comment if we don't have one */
1723 if ( (strcmp(attr->name, "printer-info") == 0)
1724 && (attr->value_tag == IPP_TAG_TEXT)
1725 && !strlen(printer->comment) )
1726 {
1727 char *comment = NULL;
1728 if (!pull_utf8_talloc(frame,
1729 &comment,
1730 attr->values[0].string.text,
1731 &size)) {
1732 goto out;
1733 }
1734 DEBUG(5,("cups_pull_comment_location: Using cups comment: %s\n",
1735 comment));
1736 strlcpy(printer->comment,
1737 comment,
1738 sizeof(printer->comment));
1739 }
1740
1741 /* Grab the location if we don't have one */
1742 if ( (strcmp(attr->name, "printer-location") == 0)
1743 && (attr->value_tag == IPP_TAG_TEXT)
1744 && !strlen(printer->location) )
1745 {
1746 char *location = NULL;
1747 if (!pull_utf8_talloc(frame,
1748 &location,
1749 attr->values[0].string.text,
1750 &size)) {
1751 goto out;
1752 }
1753 DEBUG(5,("cups_pull_comment_location: Using cups location: %s\n",
1754 location));
1755 strlcpy(printer->location,
1756 location,
1757 sizeof(printer->location));
1758 }
1759
1760 attr = attr->next;
1761 }
1762
1763 /*
1764 * We have everything needed...
1765 */
1766
1767 if (name != NULL)
1768 break;
1769 }
1770
1771 ret = True;
1772
1773 out:
1774 if (response)
1775 ippDelete(response);
1776
1777 if (request) {
1778 ippDelete(request);
1779 }
1780
1781 if (language)
1782 cupsLangFree(language);
1783
1784 if (http)
1785 httpClose(http);
1786
1787 TALLOC_FREE(frame);
1788 return ret;
1789 }
1790
1791 #else
1792 /* this keeps fussy compilers happy */
1793 void print_cups_dummy(void);
1794 void print_cups_dummy(void) {}
1795 #endif /* HAVE_CUPS */