1/*
2 * Support code for the Common UNIX Printing System ("CUPS")
3 *
4 * Copyright 1999-2003 by Michael R Sweet.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21#include "includes.h"
22#include "printing.h"
23
24#ifdef HAVE_CUPS
25#include <cups/cups.h>
26#include <cups/language.h>
27
28
29/*
30 * 'cups_passwd_cb()' - The CUPS password callback...
31 */
32
33static const char *				/* O - Password or NULL */
34cups_passwd_cb(const char *prompt)	/* I - Prompt */
35{
36	/*
37	 * Always return NULL to indicate that no password is available...
38	 */
39
40	return (NULL);
41}
42
43static const char *cups_server(void)
44{
45	if ((lp_cups_server() != NULL) && (strlen(lp_cups_server()) > 0)) {
46		DEBUG(10, ("cups server explicitly set to %s\n",
47			   lp_cups_server()));
48		return lp_cups_server();
49	}
50
51	DEBUG(10, ("cups server left to default %s\n", cupsServer()));
52	return cupsServer();
53}
54
55BOOL cups_cache_reload(void)
56{
57	http_t		*http = NULL;		/* HTTP connection to server */
58	ipp_t		*request = NULL,	/* IPP Request */
59			*response = NULL;	/* IPP Response */
60	ipp_attribute_t	*attr;		/* Current attribute */
61	cups_lang_t	*language = NULL;	/* Default language */
62	char		*name,		/* printer-name attribute */
63			*info;		/* printer-info attribute */
64	static const char *requested[] =/* Requested attributes */
65			{
66			  "printer-name",
67			  "printer-info"
68			};
69	BOOL ret = False;
70
71	DEBUG(5, ("reloading cups printcap cache\n"));
72
73       /*
74        * Make sure we don't ask for passwords...
75	*/
76
77        cupsSetPasswordCB(cups_passwd_cb);
78
79       /*
80	* Try to connect to the server...
81	*/
82
83	if ((http = httpConnect(cups_server(), ippPort())) == NULL) {
84		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
85			 cups_server(), strerror(errno)));
86		goto out;
87	}
88
89       /*
90	* Build a CUPS_GET_PRINTERS request, which requires the following
91	* attributes:
92	*
93	*    attributes-charset
94	*    attributes-natural-language
95	*    requested-attributes
96	*/
97
98	request = ippNew();
99
100	request->request.op.operation_id = CUPS_GET_PRINTERS;
101	request->request.op.request_id   = 1;
102
103	language = cupsLangDefault();
104
105	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
106                     "attributes-charset", NULL, cupsLangEncoding(language));
107
108	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
109                     "attributes-natural-language", NULL, language->language);
110
111        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
112	              "requested-attributes",
113		      (sizeof(requested) / sizeof(requested[0])),
114		      NULL, requested);
115
116       /*
117	* Do the request and get back a response...
118	*/
119
120	if ((response = cupsDoRequest(http, request, "/")) == NULL) {
121		DEBUG(0,("Unable to get printer list - %s\n",
122			 ippErrorString(cupsLastError())));
123		goto out;
124	}
125
126	for (attr = response->attrs; attr != NULL;) {
127	       /*
128		* Skip leading attributes until we hit a printer...
129		*/
130
131		while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
132			attr = attr->next;
133
134		if (attr == NULL)
135        		break;
136
137	       /*
138		* Pull the needed attributes from this printer...
139		*/
140
141		name       = NULL;
142		info       = NULL;
143
144		while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
145        		if (strcmp(attr->name, "printer-name") == 0 &&
146			    attr->value_tag == IPP_TAG_NAME)
147				name = attr->values[0].string.text;
148
149        		if (strcmp(attr->name, "printer-info") == 0 &&
150			    attr->value_tag == IPP_TAG_TEXT)
151				info = attr->values[0].string.text;
152
153        		attr = attr->next;
154		}
155
156	       /*
157		* See if we have everything needed...
158		*/
159
160		if (name == NULL)
161			break;
162
163		if (!pcap_cache_add(name, info)) {
164			goto out;
165		}
166	}
167
168	ippDelete(response);
169	response = NULL;
170
171       /*
172	* Build a CUPS_GET_CLASSES request, which requires the following
173	* attributes:
174	*
175	*    attributes-charset
176	*    attributes-natural-language
177	*    requested-attributes
178	*/
179
180	request = ippNew();
181
182	request->request.op.operation_id = CUPS_GET_CLASSES;
183	request->request.op.request_id   = 1;
184
185	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
186                     "attributes-charset", NULL, cupsLangEncoding(language));
187
188	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
189                     "attributes-natural-language", NULL, language->language);
190
191        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
192	              "requested-attributes",
193		      (sizeof(requested) / sizeof(requested[0])),
194		      NULL, requested);
195
196       /*
197	* Do the request and get back a response...
198	*/
199
200	if ((response = cupsDoRequest(http, request, "/")) == NULL) {
201		DEBUG(0,("Unable to get printer list - %s\n",
202			 ippErrorString(cupsLastError())));
203		goto out;
204	}
205
206	for (attr = response->attrs; attr != NULL;) {
207	       /*
208		* Skip leading attributes until we hit a printer...
209		*/
210
211		while (attr != NULL && attr->group_tag != IPP_TAG_PRINTER)
212			attr = attr->next;
213
214		if (attr == NULL)
215        		break;
216
217	       /*
218		* Pull the needed attributes from this printer...
219		*/
220
221		name       = NULL;
222		info       = NULL;
223
224		while (attr != NULL && attr->group_tag == IPP_TAG_PRINTER) {
225        		if (strcmp(attr->name, "printer-name") == 0 &&
226			    attr->value_tag == IPP_TAG_NAME)
227				name = attr->values[0].string.text;
228
229        		if (strcmp(attr->name, "printer-info") == 0 &&
230			    attr->value_tag == IPP_TAG_TEXT)
231				info = attr->values[0].string.text;
232
233        		attr = attr->next;
234		}
235
236	       /*
237		* See if we have everything needed...
238		*/
239
240		if (name == NULL)
241			break;
242
243		if (!pcap_cache_add(name, info)) {
244			goto out;
245		}
246	}
247
248	ret = True;
249
250 out:
251	if (response)
252		ippDelete(response);
253
254	if (language)
255		cupsLangFree(language);
256
257	if (http)
258		httpClose(http);
259
260	return ret;
261}
262
263
264/*
265 * 'cups_job_delete()' - Delete a job.
266 */
267
268static int cups_job_delete(int snum, struct printjob *pjob)
269{
270	int		ret = 1;		/* Return value */
271	http_t		*http = NULL;		/* HTTP connection to server */
272	ipp_t		*request = NULL,	/* IPP Request */
273			*response = NULL;	/* IPP Response */
274	cups_lang_t	*language = NULL;	/* Default language */
275	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
276
277
278	DEBUG(5,("cups_job_delete(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
279
280       /*
281        * Make sure we don't ask for passwords...
282	*/
283
284        cupsSetPasswordCB(cups_passwd_cb);
285
286       /*
287	* Try to connect to the server...
288	*/
289
290	if ((http = httpConnect(cups_server(), ippPort())) == NULL) {
291		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
292			 cups_server(), strerror(errno)));
293		goto out;
294	}
295
296       /*
297	* Build an IPP_CANCEL_JOB request, which requires the following
298	* attributes:
299	*
300	*    attributes-charset
301	*    attributes-natural-language
302	*    job-uri
303	*    requesting-user-name
304	*/
305
306	request = ippNew();
307
308	request->request.op.operation_id = IPP_CANCEL_JOB;
309	request->request.op.request_id   = 1;
310
311	language = cupsLangDefault();
312
313	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
314        	     "attributes-charset", NULL, cupsLangEncoding(language));
315
316	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
317        	     "attributes-natural-language", NULL, language->language);
318
319	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
320
321	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
322
323	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
324        	     NULL, pjob->user);
325
326       /*
327	* Do the request and get back a response...
328	*/
329
330	if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
331		if (response->request.status.status_code >= IPP_OK_CONFLICT) {
332			DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
333				ippErrorString(cupsLastError())));
334		} else {
335			ret = 0;
336		}
337	} else {
338		DEBUG(0,("Unable to cancel job %d - %s\n", pjob->sysjob,
339			ippErrorString(cupsLastError())));
340	}
341
342 out:
343	if (response)
344		ippDelete(response);
345
346	if (language)
347		cupsLangFree(language);
348
349	if (http)
350		httpClose(http);
351
352	return ret;
353}
354
355
356/*
357 * 'cups_job_pause()' - Pause a job.
358 */
359
360static int cups_job_pause(int snum, struct printjob *pjob)
361{
362	int		ret = 1;		/* Return value */
363	http_t		*http = NULL;		/* HTTP connection to server */
364	ipp_t		*request = NULL,	/* IPP Request */
365			*response = NULL;	/* IPP Response */
366	cups_lang_t	*language = NULL;	/* Default language */
367	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
368
369
370	DEBUG(5,("cups_job_pause(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
371
372       /*
373        * Make sure we don't ask for passwords...
374	*/
375
376        cupsSetPasswordCB(cups_passwd_cb);
377
378       /*
379	* Try to connect to the server...
380	*/
381
382	if ((http = httpConnect(cups_server(), ippPort())) == NULL) {
383		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
384			 cups_server(), strerror(errno)));
385		goto out;
386	}
387
388       /*
389	* Build an IPP_HOLD_JOB request, which requires the following
390	* attributes:
391	*
392	*    attributes-charset
393	*    attributes-natural-language
394	*    job-uri
395	*    requesting-user-name
396	*/
397
398	request = ippNew();
399
400	request->request.op.operation_id = IPP_HOLD_JOB;
401	request->request.op.request_id   = 1;
402
403	language = cupsLangDefault();
404
405	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
406        	     "attributes-charset", NULL, cupsLangEncoding(language));
407
408	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
409        	     "attributes-natural-language", NULL, language->language);
410
411	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
412
413	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
414
415	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
416        	     NULL, pjob->user);
417
418       /*
419	* Do the request and get back a response...
420	*/
421
422	if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
423		if (response->request.status.status_code >= IPP_OK_CONFLICT) {
424			DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
425				ippErrorString(cupsLastError())));
426		} else {
427			ret = 0;
428		}
429	} else {
430		DEBUG(0,("Unable to hold job %d - %s\n", pjob->sysjob,
431			ippErrorString(cupsLastError())));
432	}
433
434 out:
435	if (response)
436		ippDelete(response);
437
438	if (language)
439		cupsLangFree(language);
440
441	if (http)
442		httpClose(http);
443
444	return ret;
445}
446
447
448/*
449 * 'cups_job_resume()' - Resume a paused job.
450 */
451
452static int cups_job_resume(int snum, struct printjob *pjob)
453{
454	int		ret = 1;		/* Return value */
455	http_t		*http = NULL;		/* HTTP connection to server */
456	ipp_t		*request = NULL,	/* IPP Request */
457			*response = NULL;	/* IPP Response */
458	cups_lang_t	*language = NULL;	/* Default language */
459	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
460
461
462	DEBUG(5,("cups_job_resume(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
463
464       /*
465        * Make sure we don't ask for passwords...
466	*/
467
468        cupsSetPasswordCB(cups_passwd_cb);
469
470       /*
471	* Try to connect to the server...
472	*/
473
474	if ((http = httpConnect(cups_server(), ippPort())) == NULL) {
475		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
476			 cups_server(), strerror(errno)));
477		goto out;
478	}
479
480       /*
481	* Build an IPP_RELEASE_JOB request, which requires the following
482	* attributes:
483	*
484	*    attributes-charset
485	*    attributes-natural-language
486	*    job-uri
487	*    requesting-user-name
488	*/
489
490	request = ippNew();
491
492	request->request.op.operation_id = IPP_RELEASE_JOB;
493	request->request.op.request_id   = 1;
494
495	language = cupsLangDefault();
496
497	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
498        	     "attributes-charset", NULL, cupsLangEncoding(language));
499
500	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
501        	     "attributes-natural-language", NULL, language->language);
502
503	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/jobs/%d", pjob->sysjob);
504
505	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "job-uri", NULL, uri);
506
507	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
508        	     NULL, pjob->user);
509
510       /*
511	* Do the request and get back a response...
512	*/
513
514	if ((response = cupsDoRequest(http, request, "/jobs")) != NULL) {
515		if (response->request.status.status_code >= IPP_OK_CONFLICT) {
516			DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
517				ippErrorString(cupsLastError())));
518		} else {
519			ret = 0;
520		}
521	} else {
522		DEBUG(0,("Unable to release job %d - %s\n", pjob->sysjob,
523			ippErrorString(cupsLastError())));
524	}
525
526 out:
527	if (response)
528		ippDelete(response);
529
530	if (language)
531		cupsLangFree(language);
532
533	if (http)
534		httpClose(http);
535
536	return ret;
537}
538
539
540/*
541 * 'cups_job_submit()' - Submit a job for printing.
542 */
543
544static int cups_job_submit(int snum, struct printjob *pjob)
545{
546	int		ret = 1;		/* Return value */
547	http_t		*http = NULL;		/* HTTP connection to server */
548	ipp_t		*request = NULL,	/* IPP Request */
549			*response = NULL;	/* IPP Response */
550	cups_lang_t	*language = NULL;	/* Default language */
551	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
552	char 		*clientname = NULL; 	/* hostname of client for job-originating-host attribute */
553	pstring		new_jobname;
554	int		num_options = 0;
555	cups_option_t 	*options = NULL;
556
557	DEBUG(5,("cups_job_submit(%d, %p (%d))\n", snum, pjob, pjob->sysjob));
558
559       /*
560        * Make sure we don't ask for passwords...
561	*/
562
563        cupsSetPasswordCB(cups_passwd_cb);
564
565       /*
566	* Try to connect to the server...
567	*/
568
569	if ((http = httpConnect(cups_server(), ippPort())) == NULL) {
570		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
571			 cups_server(), strerror(errno)));
572		goto out;
573	}
574
575       /*
576	* Build an IPP_PRINT_JOB request, which requires the following
577	* attributes:
578	*
579	*    attributes-charset
580	*    attributes-natural-language
581	*    printer-uri
582	*    requesting-user-name
583	*    [document-data]
584	*/
585
586	request = ippNew();
587
588	request->request.op.operation_id = IPP_PRINT_JOB;
589	request->request.op.request_id   = 1;
590
591	language = cupsLangDefault();
592
593	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
594        	     "attributes-charset", NULL, cupsLangEncoding(language));
595
596	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
597        	     "attributes-natural-language", NULL, language->language);
598
599	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
600	         PRINTERNAME(snum));
601
602	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
603        	     "printer-uri", NULL, uri);
604
605	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
606        	     NULL, pjob->user);
607
608	clientname = client_name();
609	if (strcmp(clientname, "UNKNOWN") == 0) {
610		clientname = client_addr();
611	}
612
613	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
614	             "job-originating-host-name", NULL,
615		      clientname);
616
617        pstr_sprintf(new_jobname,"%s%.8u %s", PRINT_SPOOL_PREFIX,
618		(unsigned int)pjob->smbjob, pjob->jobname);
619
620	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "job-name", NULL,
621        	     new_jobname);
622
623	/*
624	 * add any options defined in smb.conf
625	 */
626
627	num_options = 0;
628	options     = NULL;
629	num_options = cupsParseOptions(lp_cups_options(snum), num_options, &options);
630
631	if ( num_options )
632		cupsEncodeOptions(request, num_options, options);
633
634       /*
635	* Do the request and get back a response...
636	*/
637
638	slprintf(uri, sizeof(uri) - 1, "/printers/%s", PRINTERNAME(snum));
639
640	if ((response = cupsDoFileRequest(http, request, uri, pjob->filename)) != NULL) {
641		if (response->request.status.status_code >= IPP_OK_CONFLICT) {
642			DEBUG(0,("Unable to print file to %s - %s\n", PRINTERNAME(snum),
643			         ippErrorString(cupsLastError())));
644		} else {
645			ret = 0;
646		}
647	} else {
648		DEBUG(0,("Unable to print file to `%s' - %s\n", PRINTERNAME(snum),
649			 ippErrorString(cupsLastError())));
650	}
651
652	if ( ret == 0 )
653		unlink(pjob->filename);
654	/* else print_job_end will do it for us */
655
656 out:
657	if (response)
658		ippDelete(response);
659
660	if (language)
661		cupsLangFree(language);
662
663	if (http)
664		httpClose(http);
665
666	return ret;
667}
668
669/*
670 * 'cups_queue_get()' - Get all the jobs in the print queue.
671 */
672
673static int cups_queue_get(const char *sharename,
674               enum printing_types printing_type,
675               char *lpq_command,
676               print_queue_struct **q,
677               print_status_struct *status)
678{
679	fstring		printername;
680	http_t		*http = NULL;		/* HTTP connection to server */
681	ipp_t		*request = NULL,	/* IPP Request */
682			*response = NULL;	/* IPP Response */
683	ipp_attribute_t	*attr = NULL;		/* Current attribute */
684	cups_lang_t	*language = NULL;	/* Default language */
685	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
686	int		qcount = 0,		/* Number of active queue entries */
687			qalloc = 0;		/* Number of queue entries allocated */
688	print_queue_struct *queue = NULL,	/* Queue entries */
689			*temp;		/* Temporary pointer for queue */
690	const char	*user_name,	/* job-originating-user-name attribute */
691			*job_name;	/* job-name attribute */
692	int		job_id;		/* job-id attribute */
693	int		job_k_octets;	/* job-k-octets attribute */
694	time_t		job_time;	/* time-at-creation attribute */
695	ipp_jstate_t	job_status;	/* job-status attribute */
696	int		job_priority;	/* job-priority attribute */
697	static const char *jattrs[] =	/* Requested job attributes */
698			{
699			  "job-id",
700			  "job-k-octets",
701			  "job-name",
702			  "job-originating-user-name",
703			  "job-priority",
704			  "job-state",
705			  "time-at-creation",
706			};
707	static const char *pattrs[] =	/* Requested printer attributes */
708			{
709			  "printer-state",
710			  "printer-state-message"
711			};
712
713	*q = NULL;
714
715	/* HACK ALERT!!!  The porblem with support the 'printer name'
716	   option is that we key the tdb off the sharename.  So we will
717	   overload the lpq_command string to pass in the printername
718	   (which is basically what we do for non-cups printers ... using
719	   the lpq_command to get the queue listing). */
720
721	fstrcpy( printername, lpq_command );
722
723	DEBUG(5,("cups_queue_get(%s, %p, %p)\n", printername, q, status));
724
725       /*
726        * Make sure we don't ask for passwords...
727	*/
728
729        cupsSetPasswordCB(cups_passwd_cb);
730
731       /*
732	* Try to connect to the server...
733	*/
734
735	if ((http = httpConnect(cups_server(), ippPort())) == NULL) {
736		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
737			 cups_server(), strerror(errno)));
738		goto out;
739	}
740
741       /*
742        * Generate the printer URI...
743	*/
744
745	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s", printername);
746
747       /*
748	* Build an IPP_GET_JOBS request, which requires the following
749	* attributes:
750	*
751	*    attributes-charset
752	*    attributes-natural-language
753	*    requested-attributes
754	*    printer-uri
755	*/
756
757	request = ippNew();
758
759	request->request.op.operation_id = IPP_GET_JOBS;
760	request->request.op.request_id   = 1;
761
762	language = cupsLangDefault();
763
764	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
765                     "attributes-charset", NULL, cupsLangEncoding(language));
766
767	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
768                     "attributes-natural-language", NULL, language->language);
769
770        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
771	              "requested-attributes",
772		      (sizeof(jattrs) / sizeof(jattrs[0])),
773		      NULL, jattrs);
774
775	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
776                     "printer-uri", NULL, uri);
777
778       /*
779	* Do the request and get back a response...
780	*/
781
782	if ((response = cupsDoRequest(http, request, "/")) == NULL) {
783		DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
784			 ippErrorString(cupsLastError())));
785		goto out;
786	}
787
788	if (response->request.status.status_code >= IPP_OK_CONFLICT) {
789		DEBUG(0,("Unable to get jobs for %s - %s\n", uri,
790			 ippErrorString(response->request.status.status_code)));
791		goto out;
792	}
793
794       /*
795        * Process the jobs...
796	*/
797
798        qcount = 0;
799	qalloc = 0;
800	queue  = NULL;
801
802        for (attr = response->attrs; attr != NULL; attr = attr->next) {
803	       /*
804		* Skip leading attributes until we hit a job...
805		*/
806
807		while (attr != NULL && attr->group_tag != IPP_TAG_JOB)
808        		attr = attr->next;
809
810		if (attr == NULL)
811			break;
812
813	       /*
814	        * Allocate memory as needed...
815		*/
816		if (qcount >= qalloc) {
817			qalloc += 16;
818
819			temp = SMB_REALLOC_ARRAY(queue, print_queue_struct, qalloc);
820
821			if (temp == NULL) {
822				DEBUG(0,("cups_queue_get: Not enough memory!"));
823				qcount = 0;
824				SAFE_FREE(queue);
825				goto out;
826			}
827
828			queue = temp;
829		}
830
831		temp = queue + qcount;
832		memset(temp, 0, sizeof(print_queue_struct));
833
834	       /*
835		* Pull the needed attributes from this job...
836		*/
837
838		job_id       = 0;
839		job_priority = 50;
840		job_status   = IPP_JOB_PENDING;
841		job_time     = 0;
842		job_k_octets = 0;
843		user_name    = NULL;
844		job_name     = NULL;
845
846		while (attr != NULL && attr->group_tag == IPP_TAG_JOB) {
847        		if (attr->name == NULL) {
848				attr = attr->next;
849				break;
850			}
851
852        		if (strcmp(attr->name, "job-id") == 0 &&
853			    attr->value_tag == IPP_TAG_INTEGER)
854				job_id = attr->values[0].integer;
855
856        		if (strcmp(attr->name, "job-k-octets") == 0 &&
857			    attr->value_tag == IPP_TAG_INTEGER)
858				job_k_octets = attr->values[0].integer;
859
860        		if (strcmp(attr->name, "job-priority") == 0 &&
861			    attr->value_tag == IPP_TAG_INTEGER)
862				job_priority = attr->values[0].integer;
863
864        		if (strcmp(attr->name, "job-state") == 0 &&
865			    attr->value_tag == IPP_TAG_ENUM)
866				job_status = (ipp_jstate_t)(attr->values[0].integer);
867
868        		if (strcmp(attr->name, "time-at-creation") == 0 &&
869			    attr->value_tag == IPP_TAG_INTEGER)
870				job_time = attr->values[0].integer;
871
872        		if (strcmp(attr->name, "job-name") == 0 &&
873			    attr->value_tag == IPP_TAG_NAME)
874				job_name = attr->values[0].string.text;
875
876        		if (strcmp(attr->name, "job-originating-user-name") == 0 &&
877			    attr->value_tag == IPP_TAG_NAME)
878				user_name = attr->values[0].string.text;
879
880        		attr = attr->next;
881		}
882
883	       /*
884		* See if we have everything needed...
885		*/
886
887		if (user_name == NULL || job_name == NULL || job_id == 0) {
888			if (attr == NULL)
889				break;
890			else
891				continue;
892		}
893
894		temp->job      = job_id;
895		temp->size     = job_k_octets * 1024;
896		temp->status   = job_status == IPP_JOB_PENDING ? LPQ_QUEUED :
897				 job_status == IPP_JOB_STOPPED ? LPQ_PAUSED :
898                                 job_status == IPP_JOB_HELD ? LPQ_PAUSED :
899			         LPQ_PRINTING;
900		temp->priority = job_priority;
901		temp->time     = job_time;
902		strncpy(temp->fs_user, user_name, sizeof(temp->fs_user) - 1);
903		strncpy(temp->fs_file, job_name, sizeof(temp->fs_file) - 1);
904
905		qcount ++;
906
907		if (attr == NULL)
908			break;
909	}
910
911	ippDelete(response);
912	response = NULL;
913
914       /*
915	* Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the
916	* following attributes:
917	*
918	*    attributes-charset
919	*    attributes-natural-language
920	*    requested-attributes
921	*    printer-uri
922	*/
923
924	request = ippNew();
925
926	request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
927	request->request.op.request_id   = 1;
928
929	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
930                     "attributes-charset", NULL, cupsLangEncoding(language));
931
932	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
933                     "attributes-natural-language", NULL, language->language);
934
935        ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_NAME,
936	              "requested-attributes",
937		      (sizeof(pattrs) / sizeof(pattrs[0])),
938		      NULL, pattrs);
939
940	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI,
941                     "printer-uri", NULL, uri);
942
943       /*
944	* Do the request and get back a response...
945	*/
946
947	if ((response = cupsDoRequest(http, request, "/")) == NULL) {
948		DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
949			 ippErrorString(cupsLastError())));
950		*q = queue;
951		goto out;
952	}
953
954	if (response->request.status.status_code >= IPP_OK_CONFLICT) {
955		DEBUG(0,("Unable to get printer status for %s - %s\n", printername,
956			 ippErrorString(response->request.status.status_code)));
957		*q = queue;
958		goto out;
959	}
960
961       /*
962        * Get the current printer status and convert it to the SAMBA values.
963	*/
964
965        if ((attr = ippFindAttribute(response, "printer-state", IPP_TAG_ENUM)) != NULL) {
966		if (attr->values[0].integer == IPP_PRINTER_STOPPED)
967			status->status = LPSTAT_STOPPED;
968		else
969			status->status = LPSTAT_OK;
970	}
971
972        if ((attr = ippFindAttribute(response, "printer-state-message",
973	                             IPP_TAG_TEXT)) != NULL)
974	        fstrcpy(status->message, attr->values[0].string.text);
975
976       /*
977        * Return the job queue...
978	*/
979
980	*q = queue;
981
982 out:
983	if (response)
984		ippDelete(response);
985
986	if (language)
987		cupsLangFree(language);
988
989	if (http)
990		httpClose(http);
991
992	return qcount;
993}
994
995
996/*
997 * 'cups_queue_pause()' - Pause a print queue.
998 */
999
1000static int cups_queue_pause(int snum)
1001{
1002	extern userdom_struct current_user_info;
1003	int		ret = 1;		/* Return value */
1004	http_t		*http = NULL;		/* HTTP connection to server */
1005	ipp_t		*request = NULL,	/* IPP Request */
1006			*response = NULL;	/* IPP Response */
1007	cups_lang_t	*language = NULL;	/* Default language */
1008	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
1009
1010
1011	DEBUG(5,("cups_queue_pause(%d)\n", snum));
1012
1013	/*
1014	 * Make sure we don't ask for passwords...
1015	 */
1016
1017        cupsSetPasswordCB(cups_passwd_cb);
1018
1019	/*
1020	 * Try to connect to the server...
1021	 */
1022
1023	if ((http = httpConnect(cups_server(), ippPort())) == NULL) {
1024		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
1025			 cups_server(), strerror(errno)));
1026		goto out;
1027	}
1028
1029	/*
1030	 * Build an IPP_PAUSE_PRINTER request, which requires the following
1031	 * attributes:
1032	 *
1033	 *    attributes-charset
1034	 *    attributes-natural-language
1035	 *    printer-uri
1036	 *    requesting-user-name
1037	 */
1038
1039	request = ippNew();
1040
1041	request->request.op.operation_id = IPP_PAUSE_PRINTER;
1042	request->request.op.request_id   = 1;
1043
1044	language = cupsLangDefault();
1045
1046	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1047        	     "attributes-charset", NULL, cupsLangEncoding(language));
1048
1049	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1050        	     "attributes-natural-language", NULL, language->language);
1051
1052	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1053	         PRINTERNAME(snum));
1054
1055	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1056
1057	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1058        	     NULL, current_user_info.unix_name);
1059
1060       /*
1061	* Do the request and get back a response...
1062	*/
1063
1064	if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1065		if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1066			DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1067				ippErrorString(cupsLastError())));
1068		} else {
1069			ret = 0;
1070		}
1071	} else {
1072		DEBUG(0,("Unable to pause printer %s - %s\n", PRINTERNAME(snum),
1073			ippErrorString(cupsLastError())));
1074	}
1075
1076 out:
1077	if (response)
1078		ippDelete(response);
1079
1080	if (language)
1081		cupsLangFree(language);
1082
1083	if (http)
1084		httpClose(http);
1085
1086	return ret;
1087}
1088
1089
1090/*
1091 * 'cups_queue_resume()' - Restart a print queue.
1092 */
1093
1094static int cups_queue_resume(int snum)
1095{
1096	extern userdom_struct current_user_info;
1097	int		ret = 1;		/* Return value */
1098	http_t		*http = NULL;		/* HTTP connection to server */
1099	ipp_t		*request = NULL,	/* IPP Request */
1100			*response = NULL;	/* IPP Response */
1101	cups_lang_t	*language = NULL;	/* Default language */
1102	char		uri[HTTP_MAX_URI]; /* printer-uri attribute */
1103
1104
1105	DEBUG(5,("cups_queue_resume(%d)\n", snum));
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 = httpConnect(cups_server(), ippPort())) == NULL) {
1118		DEBUG(0,("Unable to connect to CUPS server %s - %s\n",
1119			 cups_server(), strerror(errno)));
1120		goto out;
1121	}
1122
1123       /*
1124	* Build an IPP_RESUME_PRINTER request, which requires the following
1125	* attributes:
1126	*
1127	*    attributes-charset
1128	*    attributes-natural-language
1129	*    printer-uri
1130	*    requesting-user-name
1131	*/
1132
1133	request = ippNew();
1134
1135	request->request.op.operation_id = IPP_RESUME_PRINTER;
1136	request->request.op.request_id   = 1;
1137
1138	language = cupsLangDefault();
1139
1140	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_CHARSET,
1141        	     "attributes-charset", NULL, cupsLangEncoding(language));
1142
1143	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_LANGUAGE,
1144        	     "attributes-natural-language", NULL, language->language);
1145
1146	slprintf(uri, sizeof(uri) - 1, "ipp://localhost/printers/%s",
1147	         PRINTERNAME(snum));
1148
1149	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri);
1150
1151	ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "requesting-user-name",
1152        	     NULL, current_user_info.unix_name);
1153
1154       /*
1155	* Do the request and get back a response...
1156	*/
1157
1158	if ((response = cupsDoRequest(http, request, "/admin/")) != NULL) {
1159		if (response->request.status.status_code >= IPP_OK_CONFLICT) {
1160			DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1161				ippErrorString(cupsLastError())));
1162		} else {
1163			ret = 0;
1164		}
1165	} else {
1166		DEBUG(0,("Unable to resume printer %s - %s\n", PRINTERNAME(snum),
1167			ippErrorString(cupsLastError())));
1168	}
1169
1170 out:
1171	if (response)
1172		ippDelete(response);
1173
1174	if (language)
1175		cupsLangFree(language);
1176
1177	if (http)
1178		httpClose(http);
1179
1180	return ret;
1181}
1182
1183/*******************************************************************
1184 * CUPS printing interface definitions...
1185 ******************************************************************/
1186
1187struct printif	cups_printif =
1188{
1189	PRINT_CUPS,
1190	cups_queue_get,
1191	cups_queue_pause,
1192	cups_queue_resume,
1193	cups_job_delete,
1194	cups_job_pause,
1195	cups_job_resume,
1196	cups_job_submit,
1197};
1198
1199#else
1200 /* this keeps fussy compilers happy */
1201 void print_cups_dummy(void) {}
1202#endif /* HAVE_CUPS */
1203