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f787e1e3 | 1 | /* |
f787e1e3 MS |
2 | * PPD utilities for CUPS. |
3 | * | |
818bbe7a MS |
4 | * Copyright © 2007-2018 by Apple Inc. |
5 | * Copyright © 1997-2006 by Easy Software Products. | |
f787e1e3 | 6 | * |
4b042bf6 MS |
7 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
8 | * information. | |
f787e1e3 MS |
9 | */ |
10 | ||
11 | /* | |
12 | * Include necessary headers... | |
13 | */ | |
14 | ||
15 | #include "cups-private.h" | |
16 | #include "ppd-private.h" | |
fb863569 | 17 | #include "debug-internal.h" |
f787e1e3 MS |
18 | #include <fcntl.h> |
19 | #include <sys/stat.h> | |
19dc16f7 | 20 | #if defined(_WIN32) || defined(__EMX__) |
f787e1e3 MS |
21 | # include <io.h> |
22 | #else | |
23 | # include <unistd.h> | |
19dc16f7 | 24 | #endif /* _WIN32 || __EMX__ */ |
f787e1e3 MS |
25 | |
26 | ||
27 | /* | |
28 | * Local functions... | |
29 | */ | |
30 | ||
31 | static int cups_get_printer_uri(http_t *http, const char *name, | |
32 | char *host, int hostsize, int *port, | |
33 | char *resource, int resourcesize, | |
34 | int depth); | |
35 | ||
36 | ||
37 | /* | |
38 | * 'cupsGetPPD()' - Get the PPD file for a printer on the default server. | |
39 | * | |
40 | * For classes, @code cupsGetPPD@ returns the PPD file for the first printer | |
41 | * in the class. | |
42 | * | |
43 | * The returned filename is stored in a static buffer and is overwritten with | |
44 | * each call to @code cupsGetPPD@ or @link cupsGetPPD2@. The caller "owns" the | |
45 | * file that is created and must @code unlink@ the returned filename. | |
46 | */ | |
47 | ||
48 | const char * /* O - Filename for PPD file */ | |
49 | cupsGetPPD(const char *name) /* I - Destination name */ | |
50 | { | |
51 | _ppd_globals_t *pg = _ppdGlobals(); /* Pointer to library globals */ | |
52 | time_t modtime = 0; /* Modification time */ | |
53 | ||
54 | ||
55 | /* | |
56 | * Return the PPD file... | |
57 | */ | |
58 | ||
59 | pg->ppd_filename[0] = '\0'; | |
60 | ||
61 | if (cupsGetPPD3(CUPS_HTTP_DEFAULT, name, &modtime, pg->ppd_filename, | |
62 | sizeof(pg->ppd_filename)) == HTTP_STATUS_OK) | |
63 | return (pg->ppd_filename); | |
64 | else | |
65 | return (NULL); | |
66 | } | |
67 | ||
68 | ||
69 | /* | |
70 | * 'cupsGetPPD2()' - Get the PPD file for a printer from the specified server. | |
71 | * | |
72 | * For classes, @code cupsGetPPD2@ returns the PPD file for the first printer | |
73 | * in the class. | |
74 | * | |
75 | * The returned filename is stored in a static buffer and is overwritten with | |
76 | * each call to @link cupsGetPPD@ or @code cupsGetPPD2@. The caller "owns" the | |
77 | * file that is created and must @code unlink@ the returned filename. | |
78 | * | |
8072030b | 79 | * @since CUPS 1.1.21/macOS 10.4@ |
f787e1e3 MS |
80 | */ |
81 | ||
82 | const char * /* O - Filename for PPD file */ | |
83 | cupsGetPPD2(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ | |
84 | const char *name) /* I - Destination name */ | |
85 | { | |
86 | _ppd_globals_t *pg = _ppdGlobals(); /* Pointer to library globals */ | |
87 | time_t modtime = 0; /* Modification time */ | |
88 | ||
89 | ||
90 | pg->ppd_filename[0] = '\0'; | |
91 | ||
92 | if (cupsGetPPD3(http, name, &modtime, pg->ppd_filename, | |
93 | sizeof(pg->ppd_filename)) == HTTP_STATUS_OK) | |
94 | return (pg->ppd_filename); | |
95 | else | |
96 | return (NULL); | |
97 | } | |
98 | ||
99 | ||
100 | /* | |
101 | * 'cupsGetPPD3()' - Get the PPD file for a printer on the specified | |
102 | * server if it has changed. | |
103 | * | |
104 | * The "modtime" parameter contains the modification time of any | |
105 | * locally-cached content and is updated with the time from the PPD file on | |
106 | * the server. | |
107 | * | |
108 | * The "buffer" parameter contains the local PPD filename. If it contains | |
109 | * the empty string, a new temporary file is created, otherwise the existing | |
110 | * file will be overwritten as needed. The caller "owns" the file that is | |
111 | * created and must @code unlink@ the returned filename. | |
112 | * | |
113 | * On success, @code HTTP_STATUS_OK@ is returned for a new PPD file and | |
114 | * @code HTTP_STATUS_NOT_MODIFIED@ if the existing PPD file is up-to-date. Any other | |
115 | * status is an error. | |
116 | * | |
117 | * For classes, @code cupsGetPPD3@ returns the PPD file for the first printer | |
118 | * in the class. | |
119 | * | |
8072030b | 120 | * @since CUPS 1.4/macOS 10.6@ |
f787e1e3 MS |
121 | */ |
122 | ||
123 | http_status_t /* O - HTTP status */ | |
124 | cupsGetPPD3(http_t *http, /* I - HTTP connection or @code CUPS_HTTP_DEFAULT@ */ | |
125 | const char *name, /* I - Destination name */ | |
126 | time_t *modtime, /* IO - Modification time */ | |
127 | char *buffer, /* I - Filename buffer */ | |
128 | size_t bufsize) /* I - Size of filename buffer */ | |
129 | { | |
130 | int http_port; /* Port number */ | |
131 | char http_hostname[HTTP_MAX_HOST]; | |
132 | /* Hostname associated with connection */ | |
133 | http_t *http2; /* Alternate HTTP connection */ | |
134 | int fd; /* PPD file */ | |
135 | char localhost[HTTP_MAX_URI],/* Local hostname */ | |
136 | hostname[HTTP_MAX_URI], /* Hostname */ | |
137 | resource[HTTP_MAX_URI]; /* Resource name */ | |
138 | int port; /* Port number */ | |
139 | http_status_t status; /* HTTP status from server */ | |
140 | char tempfile[1024] = ""; /* Temporary filename */ | |
141 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
142 | ||
143 | ||
144 | /* | |
145 | * Range check input... | |
146 | */ | |
147 | ||
148 | DEBUG_printf(("cupsGetPPD3(http=%p, name=\"%s\", modtime=%p(%d), buffer=%p, " | |
149 | "bufsize=%d)", http, name, modtime, | |
150 | modtime ? (int)*modtime : 0, buffer, (int)bufsize)); | |
151 | ||
152 | if (!name) | |
153 | { | |
818bbe7a | 154 | DEBUG_puts("2cupsGetPPD3: No printer name, returning NULL."); |
f787e1e3 MS |
155 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No printer name"), 1); |
156 | return (HTTP_STATUS_NOT_ACCEPTABLE); | |
157 | } | |
158 | ||
159 | if (!modtime) | |
160 | { | |
818bbe7a | 161 | DEBUG_puts("2cupsGetPPD3: No modtime, returning NULL."); |
f787e1e3 MS |
162 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No modification time"), 1); |
163 | return (HTTP_STATUS_NOT_ACCEPTABLE); | |
164 | } | |
165 | ||
166 | if (!buffer || bufsize <= 1) | |
167 | { | |
818bbe7a | 168 | DEBUG_puts("2cupsGetPPD3: No filename buffer, returning NULL."); |
f787e1e3 MS |
169 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Bad filename buffer"), 1); |
170 | return (HTTP_STATUS_NOT_ACCEPTABLE); | |
171 | } | |
172 | ||
19dc16f7 | 173 | #ifndef _WIN32 |
f787e1e3 MS |
174 | /* |
175 | * See if the PPD file is available locally... | |
176 | */ | |
177 | ||
178 | if (http) | |
179 | httpGetHostname(http, hostname, sizeof(hostname)); | |
180 | else | |
181 | { | |
182 | strlcpy(hostname, cupsServer(), sizeof(hostname)); | |
183 | if (hostname[0] == '/') | |
184 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
185 | } | |
186 | ||
187 | if (!_cups_strcasecmp(hostname, "localhost")) | |
188 | { | |
189 | char ppdname[1024]; /* PPD filename */ | |
190 | struct stat ppdinfo; /* PPD file information */ | |
191 | ||
192 | ||
193 | snprintf(ppdname, sizeof(ppdname), "%s/ppd/%s.ppd", cg->cups_serverroot, | |
194 | name); | |
195 | if (!stat(ppdname, &ppdinfo) && !access(ppdname, R_OK)) | |
196 | { | |
197 | /* | |
198 | * OK, the file exists and is readable, use it! | |
199 | */ | |
200 | ||
201 | if (buffer[0]) | |
202 | { | |
818bbe7a MS |
203 | DEBUG_printf(("2cupsGetPPD3: Using filename \"%s\".", buffer)); |
204 | ||
f787e1e3 MS |
205 | unlink(buffer); |
206 | ||
207 | if (symlink(ppdname, buffer) && errno != EEXIST) | |
208 | { | |
209 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0); | |
210 | ||
211 | return (HTTP_STATUS_SERVER_ERROR); | |
212 | } | |
213 | } | |
214 | else | |
215 | { | |
216 | int tries; /* Number of tries */ | |
217 | const char *tmpdir; /* TMPDIR environment variable */ | |
218 | struct timeval curtime; /* Current time */ | |
219 | ||
818bbe7a MS |
220 | |
221 | #ifdef __APPLE__ | |
222 | /* | |
b0bb6caa MS |
223 | * On macOS and iOS, the TMPDIR environment variable is not always the |
224 | * best location to place temporary files due to sandboxing. Instead, | |
225 | * the confstr function should be called to get the proper per-user, | |
226 | * per-process TMPDIR value. | |
818bbe7a MS |
227 | */ |
228 | ||
229 | char tmppath[1024]; /* Temporary directory */ | |
230 | ||
18dfe3cb | 231 | if ((tmpdir = getenv("TMPDIR")) != NULL && access(tmpdir, W_OK)) |
818bbe7a MS |
232 | tmpdir = NULL; |
233 | ||
234 | if (!tmpdir) | |
235 | { | |
236 | if (confstr(_CS_DARWIN_USER_TEMP_DIR, tmppath, sizeof(tmppath))) | |
237 | tmpdir = tmppath; | |
238 | else | |
239 | tmpdir = "/private/tmp"; /* This should never happen */ | |
240 | } | |
241 | #else | |
f787e1e3 MS |
242 | /* |
243 | * Previously we put root temporary files in the default CUPS temporary | |
244 | * directory under /var/spool/cups. However, since the scheduler cleans | |
245 | * out temporary files there and runs independently of the user apps, we | |
246 | * don't want to use it unless specifically told to by cupsd. | |
247 | */ | |
248 | ||
249 | if ((tmpdir = getenv("TMPDIR")) == NULL) | |
818bbe7a MS |
250 | tmpdir = "/tmp"; |
251 | #endif /* __APPLE__ */ | |
252 | ||
253 | DEBUG_printf(("2cupsGetPPD3: tmpdir=\"%s\".", tmpdir)); | |
f787e1e3 MS |
254 | |
255 | /* | |
256 | * Make the temporary name using the specified directory... | |
257 | */ | |
258 | ||
259 | tries = 0; | |
260 | ||
261 | do | |
262 | { | |
263 | /* | |
264 | * Get the current time of day... | |
265 | */ | |
266 | ||
267 | gettimeofday(&curtime, NULL); | |
268 | ||
269 | /* | |
270 | * Format a string using the hex time values... | |
271 | */ | |
272 | ||
273 | snprintf(buffer, bufsize, "%s/%08lx%05lx", tmpdir, | |
274 | (unsigned long)curtime.tv_sec, | |
275 | (unsigned long)curtime.tv_usec); | |
276 | ||
277 | /* | |
278 | * Try to make a symlink... | |
279 | */ | |
280 | ||
281 | if (!symlink(ppdname, buffer)) | |
282 | break; | |
283 | ||
818bbe7a MS |
284 | DEBUG_printf(("2cupsGetPPD3: Symlink \"%s\" to \"%s\" failed: %s", ppdname, buffer, strerror(errno))); |
285 | ||
f787e1e3 MS |
286 | tries ++; |
287 | } | |
288 | while (tries < 1000); | |
289 | ||
290 | if (tries >= 1000) | |
291 | { | |
818bbe7a MS |
292 | DEBUG_puts("2cupsGetPPD3: Unable to symlink after 1000 tries, returning error."); |
293 | ||
f787e1e3 MS |
294 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0); |
295 | ||
296 | return (HTTP_STATUS_SERVER_ERROR); | |
297 | } | |
298 | } | |
299 | ||
300 | if (*modtime >= ppdinfo.st_mtime) | |
818bbe7a MS |
301 | { |
302 | DEBUG_printf(("2cupsGetPPD3: Returning not-modified, filename=\"%s\".", buffer)); | |
f787e1e3 | 303 | return (HTTP_STATUS_NOT_MODIFIED); |
818bbe7a | 304 | } |
f787e1e3 MS |
305 | else |
306 | { | |
818bbe7a | 307 | DEBUG_printf(("2cupsGetPPD3: Returning ok, filename=\"%s\", modtime=%ld.", buffer, (long)ppdinfo.st_mtime)); |
f787e1e3 MS |
308 | *modtime = ppdinfo.st_mtime; |
309 | return (HTTP_STATUS_OK); | |
310 | } | |
311 | } | |
312 | } | |
19dc16f7 | 313 | #endif /* !_WIN32 */ |
f787e1e3 MS |
314 | |
315 | /* | |
316 | * Try finding a printer URI for this printer... | |
317 | */ | |
318 | ||
818bbe7a MS |
319 | DEBUG_puts("2cupsGetPPD3: Unable to access local file, copying..."); |
320 | ||
f787e1e3 | 321 | if (!http) |
818bbe7a | 322 | { |
f787e1e3 | 323 | if ((http = _cupsConnect()) == NULL) |
818bbe7a MS |
324 | { |
325 | DEBUG_puts("2cupsGetPPD3: Unable to connect to scheduler."); | |
f787e1e3 | 326 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
818bbe7a MS |
327 | } |
328 | } | |
f787e1e3 | 329 | |
818bbe7a MS |
330 | if (!cups_get_printer_uri(http, name, hostname, sizeof(hostname), &port, resource, sizeof(resource), 0)) |
331 | { | |
332 | DEBUG_puts("2cupsGetPPD3: Unable to get printer URI."); | |
f787e1e3 | 333 | return (HTTP_STATUS_NOT_FOUND); |
818bbe7a | 334 | } |
f787e1e3 | 335 | |
818bbe7a | 336 | DEBUG_printf(("2cupsGetPPD3: Printer hostname=\"%s\", port=%d", hostname, port)); |
f787e1e3 MS |
337 | |
338 | if (cupsServer()[0] == '/' && !_cups_strcasecmp(hostname, "localhost") && port == ippPort()) | |
339 | { | |
340 | /* | |
341 | * Redirect localhost to domain socket... | |
342 | */ | |
343 | ||
344 | strlcpy(hostname, cupsServer(), sizeof(hostname)); | |
345 | port = 0; | |
346 | ||
347 | DEBUG_printf(("2cupsGetPPD3: Redirecting to \"%s\".", hostname)); | |
348 | } | |
349 | ||
350 | /* | |
351 | * Remap local hostname to localhost... | |
352 | */ | |
353 | ||
354 | httpGetHostname(NULL, localhost, sizeof(localhost)); | |
355 | ||
356 | DEBUG_printf(("2cupsGetPPD3: Local hostname=\"%s\"", localhost)); | |
357 | ||
358 | if (!_cups_strcasecmp(localhost, hostname)) | |
359 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
360 | ||
361 | /* | |
362 | * Get the hostname and port number we are connected to... | |
363 | */ | |
364 | ||
365 | httpGetHostname(http, http_hostname, sizeof(http_hostname)); | |
366 | http_port = httpAddrPort(http->hostaddr); | |
367 | ||
368 | DEBUG_printf(("2cupsGetPPD3: Connection hostname=\"%s\", port=%d", | |
369 | http_hostname, http_port)); | |
370 | ||
371 | /* | |
372 | * Reconnect to the correct server as needed... | |
373 | */ | |
374 | ||
375 | if (!_cups_strcasecmp(http_hostname, hostname) && port == http_port) | |
376 | http2 = http; | |
377 | else if ((http2 = httpConnect2(hostname, port, NULL, AF_UNSPEC, | |
378 | cupsEncryption(), 1, 30000, NULL)) == NULL) | |
379 | { | |
818bbe7a | 380 | DEBUG_puts("2cupsGetPPD3: Unable to connect to server"); |
f787e1e3 MS |
381 | |
382 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); | |
383 | } | |
384 | ||
385 | /* | |
386 | * Get a temp file... | |
387 | */ | |
388 | ||
389 | if (buffer[0]) | |
390 | fd = open(buffer, O_CREAT | O_TRUNC | O_WRONLY, 0600); | |
391 | else | |
392 | fd = cupsTempFd(tempfile, sizeof(tempfile)); | |
393 | ||
394 | if (fd < 0) | |
395 | { | |
396 | /* | |
397 | * Can't open file; close the server connection and return NULL... | |
398 | */ | |
399 | ||
400 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0); | |
401 | ||
402 | if (http2 != http) | |
403 | httpClose(http2); | |
404 | ||
405 | return (HTTP_STATUS_SERVER_ERROR); | |
406 | } | |
407 | ||
408 | /* | |
409 | * And send a request to the HTTP server... | |
410 | */ | |
411 | ||
412 | strlcat(resource, ".ppd", sizeof(resource)); | |
413 | ||
414 | if (*modtime > 0) | |
415 | httpSetField(http2, HTTP_FIELD_IF_MODIFIED_SINCE, | |
416 | httpGetDateString(*modtime)); | |
417 | ||
418 | status = cupsGetFd(http2, resource, fd); | |
419 | ||
420 | close(fd); | |
421 | ||
422 | /* | |
423 | * See if we actually got the file or an error... | |
424 | */ | |
425 | ||
426 | if (status == HTTP_STATUS_OK) | |
427 | { | |
428 | *modtime = httpGetDateTime(httpGetField(http2, HTTP_FIELD_DATE)); | |
429 | ||
430 | if (tempfile[0]) | |
431 | strlcpy(buffer, tempfile, bufsize); | |
432 | } | |
433 | else if (status != HTTP_STATUS_NOT_MODIFIED) | |
434 | { | |
435 | _cupsSetHTTPError(status); | |
436 | ||
437 | if (buffer[0]) | |
438 | unlink(buffer); | |
439 | else if (tempfile[0]) | |
440 | unlink(tempfile); | |
441 | } | |
442 | else if (tempfile[0]) | |
443 | unlink(tempfile); | |
444 | ||
445 | if (http2 != http) | |
446 | httpClose(http2); | |
447 | ||
448 | /* | |
449 | * Return the PPD file... | |
450 | */ | |
451 | ||
818bbe7a | 452 | DEBUG_printf(("2cupsGetPPD3: Returning status %d", status)); |
f787e1e3 MS |
453 | |
454 | return (status); | |
455 | } | |
456 | ||
457 | ||
458 | /* | |
459 | * 'cupsGetServerPPD()' - Get an available PPD file from the server. | |
460 | * | |
461 | * This function returns the named PPD file from the server. The | |
462 | * list of available PPDs is provided by the IPP @code CUPS_GET_PPDS@ | |
463 | * operation. | |
464 | * | |
465 | * You must remove (unlink) the PPD file when you are finished with | |
466 | * it. The PPD filename is stored in a static location that will be | |
467 | * overwritten on the next call to @link cupsGetPPD@, @link cupsGetPPD2@, | |
468 | * or @link cupsGetServerPPD@. | |
469 | * | |
8072030b | 470 | * @since CUPS 1.3/macOS 10.5@ |
f787e1e3 MS |
471 | */ |
472 | ||
473 | char * /* O - Name of PPD file or @code NULL@ on error */ | |
474 | cupsGetServerPPD(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ | |
475 | const char *name) /* I - Name of PPD file ("ppd-name") */ | |
476 | { | |
477 | int fd; /* PPD file descriptor */ | |
478 | ipp_t *request; /* IPP request */ | |
479 | _ppd_globals_t *pg = _ppdGlobals(); | |
480 | /* Pointer to library globals */ | |
481 | ||
482 | ||
483 | /* | |
484 | * Range check input... | |
485 | */ | |
486 | ||
487 | if (!name) | |
488 | { | |
489 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No PPD name"), 1); | |
490 | ||
491 | return (NULL); | |
492 | } | |
493 | ||
494 | if (!http) | |
495 | if ((http = _cupsConnect()) == NULL) | |
496 | return (NULL); | |
497 | ||
498 | /* | |
499 | * Get a temp file... | |
500 | */ | |
501 | ||
502 | if ((fd = cupsTempFd(pg->ppd_filename, sizeof(pg->ppd_filename))) < 0) | |
503 | { | |
504 | /* | |
505 | * Can't open file; close the server connection and return NULL... | |
506 | */ | |
507 | ||
508 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, NULL, 0); | |
509 | ||
510 | return (NULL); | |
511 | } | |
512 | ||
513 | /* | |
514 | * Get the PPD file... | |
515 | */ | |
516 | ||
517 | request = ippNewRequest(IPP_OP_CUPS_GET_PPD); | |
518 | ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_NAME, "ppd-name", NULL, | |
519 | name); | |
520 | ||
521 | ippDelete(cupsDoIORequest(http, request, "/", -1, fd)); | |
522 | ||
523 | close(fd); | |
524 | ||
525 | if (cupsLastError() != IPP_STATUS_OK) | |
526 | { | |
527 | unlink(pg->ppd_filename); | |
528 | return (NULL); | |
529 | } | |
530 | else | |
531 | return (pg->ppd_filename); | |
532 | } | |
533 | ||
534 | ||
535 | /* | |
536 | * 'cups_get_printer_uri()' - Get the printer-uri-supported attribute for the | |
537 | * first printer in a class. | |
538 | */ | |
539 | ||
540 | static int /* O - 1 on success, 0 on failure */ | |
541 | cups_get_printer_uri( | |
542 | http_t *http, /* I - Connection to server */ | |
543 | const char *name, /* I - Name of printer or class */ | |
544 | char *host, /* I - Hostname buffer */ | |
545 | int hostsize, /* I - Size of hostname buffer */ | |
546 | int *port, /* O - Port number */ | |
547 | char *resource, /* I - Resource buffer */ | |
548 | int resourcesize, /* I - Size of resource buffer */ | |
549 | int depth) /* I - Depth of query */ | |
550 | { | |
551 | int i; /* Looping var */ | |
f787e1e3 MS |
552 | ipp_t *request, /* IPP request */ |
553 | *response; /* IPP response */ | |
554 | ipp_attribute_t *attr; /* Current attribute */ | |
555 | char uri[HTTP_MAX_URI], /* printer-uri attribute */ | |
556 | scheme[HTTP_MAX_URI], /* Scheme name */ | |
003c1790 | 557 | username[HTTP_MAX_URI]; /* Username:password */ |
f787e1e3 MS |
558 | static const char * const requested_attrs[] = |
559 | { /* Requested attributes */ | |
f787e1e3 | 560 | "member-uris", |
003c1790 | 561 | "printer-uri-supported" |
f787e1e3 MS |
562 | }; |
563 | ||
564 | ||
565 | DEBUG_printf(("4cups_get_printer_uri(http=%p, name=\"%s\", host=%p, hostsize=%d, resource=%p, resourcesize=%d, depth=%d)", http, name, host, hostsize, resource, resourcesize, depth)); | |
566 | ||
567 | /* | |
568 | * Setup the printer URI... | |
569 | */ | |
570 | ||
571 | if (httpAssembleURIf(HTTP_URI_CODING_ALL, uri, sizeof(uri), "ipp", NULL, "localhost", 0, "/printers/%s", name) < HTTP_URI_STATUS_OK) | |
572 | { | |
573 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create printer-uri"), 1); | |
574 | ||
575 | *host = '\0'; | |
576 | *resource = '\0'; | |
577 | ||
578 | return (0); | |
579 | } | |
580 | ||
581 | DEBUG_printf(("5cups_get_printer_uri: printer-uri=\"%s\"", uri)); | |
582 | ||
f787e1e3 MS |
583 | /* |
584 | * Build an IPP_GET_PRINTER_ATTRIBUTES request, which requires the following | |
585 | * attributes: | |
586 | * | |
587 | * attributes-charset | |
588 | * attributes-natural-language | |
589 | * printer-uri | |
590 | * requested-attributes | |
591 | */ | |
592 | ||
593 | request = ippNewRequest(IPP_OP_GET_PRINTER_ATTRIBUTES); | |
594 | ||
595 | ippAddString(request, IPP_TAG_OPERATION, IPP_TAG_URI, "printer-uri", NULL, uri); | |
596 | ||
597 | ippAddStrings(request, IPP_TAG_OPERATION, IPP_TAG_KEYWORD, "requested-attributes", sizeof(requested_attrs) / sizeof(requested_attrs[0]), NULL, requested_attrs); | |
598 | ||
599 | /* | |
600 | * Do the request and get back a response... | |
601 | */ | |
602 | ||
603 | snprintf(resource, (size_t)resourcesize, "/printers/%s", name); | |
604 | ||
605 | if ((response = cupsDoRequest(http, request, resource)) != NULL) | |
606 | { | |
003c1790 | 607 | if ((attr = ippFindAttribute(response, "member-uris", IPP_TAG_URI)) != NULL) |
f787e1e3 MS |
608 | { |
609 | /* | |
610 | * Get the first actual printer name in the class... | |
611 | */ | |
612 | ||
613 | DEBUG_printf(("5cups_get_printer_uri: Got member-uris with %d values.", ippGetCount(attr))); | |
614 | ||
615 | for (i = 0; i < attr->num_values; i ++) | |
616 | { | |
617 | DEBUG_printf(("5cups_get_printer_uri: member-uris[%d]=\"%s\"", i, ippGetString(attr, i, NULL))); | |
618 | ||
619 | httpSeparateURI(HTTP_URI_CODING_ALL, attr->values[i].string.text, scheme, sizeof(scheme), username, sizeof(username), host, hostsize, port, resource, resourcesize); | |
620 | if (!strncmp(resource, "/printers/", 10)) | |
621 | { | |
622 | /* | |
623 | * Found a printer! | |
624 | */ | |
625 | ||
626 | ippDelete(response); | |
627 | ||
628 | DEBUG_printf(("5cups_get_printer_uri: Found printer member with host=\"%s\", port=%d, resource=\"%s\"", host, *port, resource)); | |
629 | return (1); | |
630 | } | |
631 | } | |
f787e1e3 MS |
632 | } |
633 | else if ((attr = ippFindAttribute(response, "printer-uri-supported", IPP_TAG_URI)) != NULL) | |
634 | { | |
635 | httpSeparateURI(HTTP_URI_CODING_ALL, _httpResolveURI(attr->values[0].string.text, uri, sizeof(uri), _HTTP_RESOLVE_DEFAULT, NULL, NULL), scheme, sizeof(scheme), username, sizeof(username), host, hostsize, port, resource, resourcesize); | |
636 | ippDelete(response); | |
637 | ||
638 | DEBUG_printf(("5cups_get_printer_uri: Resolved to host=\"%s\", port=%d, resource=\"%s\"", host, *port, resource)); | |
639 | ||
640 | if (!strncmp(resource, "/classes/", 9)) | |
641 | { | |
642 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No printer-uri found for class"), 1); | |
643 | ||
644 | *host = '\0'; | |
645 | *resource = '\0'; | |
646 | ||
647 | DEBUG_puts("5cups_get_printer_uri: Not returning class."); | |
648 | return (0); | |
649 | } | |
650 | ||
651 | return (1); | |
652 | } | |
653 | ||
654 | ippDelete(response); | |
655 | } | |
656 | ||
657 | if (cupsLastError() != IPP_STATUS_ERROR_NOT_FOUND) | |
658 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No printer-uri found"), 1); | |
659 | ||
660 | *host = '\0'; | |
661 | *resource = '\0'; | |
662 | ||
663 | DEBUG_puts("5cups_get_printer_uri: Printer URI not found."); | |
664 | return (0); | |
665 | } |