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ecdc0628 | 1 | /* |
a51f28ec | 2 | * "$Id: request.c 11867 2014-05-09 20:33:08Z msweet $" |
ecdc0628 | 3 | * |
71e16022 | 4 | * IPP utilities for CUPS. |
ecdc0628 | 5 | * |
db8b865d | 6 | * Copyright 2007-2013 by Apple Inc. |
b86bc4cf | 7 | * Copyright 1997-2007 by Easy Software Products. |
ecdc0628 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ecdc0628 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
3d052e43 MS |
19 | * cupsDoFileRequest() - Do an IPP request with a file. |
20 | * cupsDoIORequest() - Do an IPP request with file descriptors. | |
21 | * cupsDoRequest() - Do an IPP request. | |
22 | * cupsGetResponse() - Get a response to an IPP request. | |
6d2f911b MS |
23 | * cupsLastError() - Return the last IPP status code. |
24 | * cupsLastErrorString() - Return the last IPP status-message. | |
f14324a7 | 25 | * _cupsNextDelay() - Return the next retry delay value. |
3d052e43 MS |
26 | * cupsReadResponseData() - Read additional data after the IPP response. |
27 | * cupsSendRequest() - Send an IPP request. | |
28 | * cupsWriteRequestData() - Write additional data after an IPP request. | |
6d2f911b | 29 | * _cupsConnect() - Get the default server connection... |
3d052e43 MS |
30 | * _cupsSetError() - Set the last IPP status code and status-message. |
31 | * _cupsSetHTTPError() - Set the last error using the HTTP status. | |
ecdc0628 | 32 | */ |
33 | ||
34 | /* | |
35 | * Include necessary headers... | |
36 | */ | |
37 | ||
71e16022 | 38 | #include "cups-private.h" |
ecdc0628 | 39 | #include <fcntl.h> |
40 | #include <sys/stat.h> | |
41 | #if defined(WIN32) || defined(__EMX__) | |
42 | # include <io.h> | |
43 | #else | |
44 | # include <unistd.h> | |
45 | #endif /* WIN32 || __EMX__ */ | |
b94498cf | 46 | #ifndef O_BINARY |
47 | # define O_BINARY 0 | |
48 | #endif /* O_BINARY */ | |
db8b865d MS |
49 | #ifndef MSG_DONTWAIT |
50 | # define MSG_DONTWAIT 0 | |
51 | #endif /* !MSG_DONTWAIT */ | |
ecdc0628 | 52 | |
53 | ||
54 | /* | |
55 | * 'cupsDoFileRequest()' - Do an IPP request with a file. | |
56 | * | |
5a9febac MS |
57 | * This function sends the IPP request and attached file to the specified |
58 | * server, retrying and authenticating as necessary. The request is freed with | |
59 | * @link ippDelete@. | |
ecdc0628 | 60 | */ |
61 | ||
62 | ipp_t * /* O - Response data */ | |
568fa3fa | 63 | cupsDoFileRequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ |
ecdc0628 | 64 | ipp_t *request, /* I - IPP request */ |
65 | const char *resource, /* I - HTTP resource for POST */ | |
568fa3fa | 66 | const char *filename) /* I - File to send or @code NULL@ for none */ |
b94498cf | 67 | { |
68 | ipp_t *response; /* IPP response data */ | |
69 | int infile; /* Input file */ | |
70 | ||
71 | ||
a603edef | 72 | DEBUG_printf(("cupsDoFileRequest(http=%p, request=%p(%s), resource=\"%s\", " |
e07d4801 | 73 | "filename=\"%s\")", http, request, |
a603edef | 74 | request ? ippOpString(request->request.op.operation_id) : "?", |
e07d4801 | 75 | resource, filename)); |
a603edef | 76 | |
b94498cf | 77 | if (filename) |
78 | { | |
79 | if ((infile = open(filename, O_RDONLY | O_BINARY)) < 0) | |
80 | { | |
81 | /* | |
82 | * Can't get file information! | |
83 | */ | |
84 | ||
cb7f98ee | 85 | _cupsSetError(errno == ENOENT ? IPP_STATUS_ERROR_NOT_FOUND : IPP_STATUS_ERROR_NOT_AUTHORIZED, |
749b1e90 | 86 | NULL, 0); |
b94498cf | 87 | |
88 | ippDelete(request); | |
89 | ||
90 | return (NULL); | |
91 | } | |
92 | } | |
93 | else | |
94 | infile = -1; | |
95 | ||
96 | response = cupsDoIORequest(http, request, resource, infile, -1); | |
97 | ||
98 | if (infile >= 0) | |
99 | close(infile); | |
100 | ||
101 | return (response); | |
102 | } | |
103 | ||
104 | ||
105 | /* | |
106 | * 'cupsDoIORequest()' - Do an IPP request with file descriptors. | |
107 | * | |
5a9febac MS |
108 | * This function sends the IPP request with the optional input file "infile" to |
109 | * the specified server, retrying and authenticating as necessary. The request | |
110 | * is freed with @link ippDelete@. | |
b94498cf | 111 | * |
5a9febac | 112 | * If "infile" is a valid file descriptor, @code cupsDoIORequest@ copies |
b94498cf | 113 | * all of the data from the file after the IPP request message. |
114 | * | |
5a9febac | 115 | * If "outfile" is a valid file descriptor, @code cupsDoIORequest@ copies |
b94498cf | 116 | * all of the data after the IPP response message to the file. |
117 | * | |
f3c17241 | 118 | * @since CUPS 1.3/OS X 10.5@ |
b94498cf | 119 | */ |
120 | ||
121 | ipp_t * /* O - Response data */ | |
568fa3fa | 122 | cupsDoIORequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ |
b94498cf | 123 | ipp_t *request, /* I - IPP request */ |
124 | const char *resource, /* I - HTTP resource for POST */ | |
125 | int infile, /* I - File to read from or -1 for none */ | |
126 | int outfile) /* I - File to write to or -1 for none */ | |
ecdc0628 | 127 | { |
3d052e43 MS |
128 | ipp_t *response = NULL; /* IPP response data */ |
129 | size_t length = 0; /* Content-Length value */ | |
ecdc0628 | 130 | http_status_t status; /* Status of HTTP request */ |
ecdc0628 | 131 | struct stat fileinfo; /* File information */ |
132 | int bytes; /* Number of bytes read/written */ | |
a74454a7 | 133 | char buffer[32768]; /* Output buffer */ |
ecdc0628 | 134 | |
135 | ||
a603edef | 136 | DEBUG_printf(("cupsDoIORequest(http=%p, request=%p(%s), resource=\"%s\", " |
e07d4801 | 137 | "infile=%d, outfile=%d)", http, request, |
a603edef | 138 | request ? ippOpString(request->request.op.operation_id) : "?", |
e07d4801 | 139 | resource, infile, outfile)); |
3d052e43 MS |
140 | |
141 | /* | |
142 | * Range check input... | |
143 | */ | |
ecdc0628 | 144 | |
3d052e43 | 145 | if (!request || !resource) |
ecdc0628 | 146 | { |
3d052e43 | 147 | ippDelete(request); |
ecdc0628 | 148 | |
cb7f98ee | 149 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
ecdc0628 | 150 | |
151 | return (NULL); | |
152 | } | |
153 | ||
3d052e43 MS |
154 | /* |
155 | * Get the default connection as needed... | |
156 | */ | |
157 | ||
158 | if (!http) | |
a603edef | 159 | if ((http = _cupsConnect()) == NULL) |
e60ec91f MS |
160 | { |
161 | ippDelete(request); | |
162 | ||
a603edef | 163 | return (NULL); |
e60ec91f | 164 | } |
3d052e43 | 165 | |
ecdc0628 | 166 | /* |
167 | * See if we have a file to send... | |
168 | */ | |
169 | ||
b94498cf | 170 | if (infile >= 0) |
ecdc0628 | 171 | { |
b94498cf | 172 | if (fstat(infile, &fileinfo)) |
ecdc0628 | 173 | { |
174 | /* | |
175 | * Can't get file information! | |
176 | */ | |
177 | ||
cb7f98ee | 178 | _cupsSetError(errno == EBADF ? IPP_STATUS_ERROR_NOT_FOUND : IPP_STATUS_ERROR_NOT_AUTHORIZED, |
749b1e90 | 179 | NULL, 0); |
ecdc0628 | 180 | |
181 | ippDelete(request); | |
182 | ||
183 | return (NULL); | |
184 | } | |
185 | ||
186 | #ifdef WIN32 | |
187 | if (fileinfo.st_mode & _S_IFDIR) | |
188 | #else | |
189 | if (S_ISDIR(fileinfo.st_mode)) | |
190 | #endif /* WIN32 */ | |
191 | { | |
192 | /* | |
193 | * Can't send a directory... | |
194 | */ | |
195 | ||
196 | ippDelete(request); | |
197 | ||
cb7f98ee | 198 | _cupsSetError(IPP_STATUS_ERROR_NOT_POSSIBLE, strerror(EISDIR), 0); |
ecdc0628 | 199 | |
200 | return (NULL); | |
201 | } | |
3d052e43 MS |
202 | |
203 | #ifndef WIN32 | |
204 | if (!S_ISREG(fileinfo.st_mode)) | |
205 | length = 0; /* Chunk when piping */ | |
206 | else | |
207 | #endif /* !WIN32 */ | |
208 | length = ippLength(request) + fileinfo.st_size; | |
209 | } | |
210 | else | |
211 | length = ippLength(request); | |
212 | ||
e07d4801 | 213 | DEBUG_printf(("2cupsDoIORequest: Request length=%ld, total length=%ld", |
52f6f666 MS |
214 | (long)ippLength(request), (long)length)); |
215 | ||
b9faaae1 MS |
216 | /* |
217 | * Clear any "Local" authentication data since it is probably stale... | |
218 | */ | |
219 | ||
220 | if (http->authstring && !strncmp(http->authstring, "Local ", 6)) | |
221 | httpSetAuthString(http, NULL, NULL); | |
222 | ||
3d052e43 MS |
223 | /* |
224 | * Loop until we can send the request without authorization problems. | |
225 | */ | |
226 | ||
227 | while (response == NULL) | |
228 | { | |
e07d4801 | 229 | DEBUG_puts("2cupsDoIORequest: setup..."); |
3d052e43 MS |
230 | |
231 | /* | |
232 | * Send the request... | |
233 | */ | |
234 | ||
235 | status = cupsSendRequest(http, request, resource, length); | |
236 | ||
e07d4801 | 237 | DEBUG_printf(("2cupsDoIORequest: status=%d", status)); |
3d052e43 | 238 | |
cb7f98ee | 239 | if (status == HTTP_STATUS_CONTINUE && request->state == IPP_STATE_DATA && infile >= 0) |
3d052e43 | 240 | { |
e07d4801 | 241 | DEBUG_puts("2cupsDoIORequest: file write..."); |
3d052e43 MS |
242 | |
243 | /* | |
244 | * Send the file with the request... | |
245 | */ | |
246 | ||
247 | #ifndef WIN32 | |
248 | if (S_ISREG(fileinfo.st_mode)) | |
249 | #endif /* WIN32 */ | |
250 | lseek(infile, 0, SEEK_SET); | |
251 | ||
252 | while ((bytes = (int)read(infile, buffer, sizeof(buffer))) > 0) | |
253 | { | |
83e08001 | 254 | if ((status = cupsWriteRequestData(http, buffer, bytes)) |
cb7f98ee | 255 | != HTTP_STATUS_CONTINUE) |
83e08001 | 256 | break; |
3d052e43 MS |
257 | } |
258 | } | |
259 | ||
260 | /* | |
261 | * Get the server's response... | |
262 | */ | |
263 | ||
71f63681 | 264 | if (status <= HTTP_STATUS_CONTINUE || status == HTTP_STATUS_OK) |
3d052e43 MS |
265 | { |
266 | response = cupsGetResponse(http, resource); | |
83e08001 | 267 | status = httpGetStatus(http); |
3d052e43 MS |
268 | } |
269 | ||
f11a948a MS |
270 | DEBUG_printf(("2cupsDoIORequest: status=%d", status)); |
271 | ||
cb7f98ee MS |
272 | if (status == HTTP_STATUS_ERROR || |
273 | (status >= HTTP_STATUS_BAD_REQUEST && status != HTTP_STATUS_UNAUTHORIZED && | |
274 | status != HTTP_STATUS_UPGRADE_REQUIRED)) | |
ee571f26 MS |
275 | { |
276 | _cupsSetHTTPError(status); | |
568fa3fa | 277 | break; |
ee571f26 | 278 | } |
568fa3fa | 279 | |
85dda01c | 280 | if (response && outfile >= 0) |
3d052e43 | 281 | { |
85dda01c MS |
282 | /* |
283 | * Write trailing data to file... | |
284 | */ | |
3d052e43 | 285 | |
85dda01c MS |
286 | while ((bytes = (int)httpRead2(http, buffer, sizeof(buffer))) > 0) |
287 | if (write(outfile, buffer, bytes) < bytes) | |
288 | break; | |
289 | } | |
3d052e43 | 290 | |
cb7f98ee | 291 | if (http->state != HTTP_STATE_WAITING) |
85dda01c MS |
292 | { |
293 | /* | |
294 | * Flush any remaining data... | |
295 | */ | |
296 | ||
297 | httpFlush(http); | |
3d052e43 MS |
298 | } |
299 | } | |
300 | ||
301 | /* | |
302 | * Delete the original request and return the response... | |
303 | */ | |
6d2f911b | 304 | |
3d052e43 MS |
305 | ippDelete(request); |
306 | ||
307 | return (response); | |
308 | } | |
309 | ||
310 | ||
311 | /* | |
312 | * 'cupsDoRequest()' - Do an IPP request. | |
313 | * | |
314 | * This function sends the IPP request to the specified server, retrying | |
5a9febac | 315 | * and authenticating as necessary. The request is freed with @link ippDelete@. |
3d052e43 MS |
316 | */ |
317 | ||
318 | ipp_t * /* O - Response data */ | |
568fa3fa | 319 | cupsDoRequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ |
3d052e43 MS |
320 | ipp_t *request, /* I - IPP request */ |
321 | const char *resource) /* I - HTTP resource for POST */ | |
322 | { | |
e07d4801 | 323 | DEBUG_printf(("cupsDoRequest(http=%p, request=%p(%s), resource=\"%s\")", |
a603edef MS |
324 | http, request, |
325 | request ? ippOpString(request->request.op.operation_id) : "?", | |
e07d4801 | 326 | resource)); |
a603edef | 327 | |
b19ccc9e | 328 | return (cupsDoIORequest(http, request, resource, -1, -1)); |
3d052e43 MS |
329 | } |
330 | ||
331 | ||
332 | /* | |
333 | * 'cupsGetResponse()' - Get a response to an IPP request. | |
334 | * | |
335 | * Use this function to get the response for an IPP request sent using | |
5a9febac MS |
336 | * @link cupsSendRequest@. For requests that return additional data, use |
337 | * @link cupsReadResponseData@ after getting a successful response, | |
338 | * otherwise call @link httpFlush@ to complete the response processing. | |
3d052e43 | 339 | * |
f3c17241 | 340 | * @since CUPS 1.4/OS X 10.6@ |
3d052e43 MS |
341 | */ |
342 | ||
568fa3fa MS |
343 | ipp_t * /* O - Response or @code NULL@ on HTTP error */ |
344 | cupsGetResponse(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ | |
3d052e43 MS |
345 | const char *resource) /* I - HTTP resource for POST */ |
346 | { | |
347 | http_status_t status; /* HTTP status */ | |
348 | ipp_state_t state; /* IPP read state */ | |
349 | ipp_t *response = NULL; /* IPP response */ | |
350 | ||
351 | ||
e07d4801 | 352 | DEBUG_printf(("cupsGetResponse(http=%p, resource=\"%s\")", http, resource)); |
a51f28ec | 353 | DEBUG_printf(("1cupsGetResponse: http->state=%d", http ? http->state : HTTP_STATE_ERROR)); |
3d052e43 MS |
354 | |
355 | /* | |
356 | * Connect to the default server as needed... | |
357 | */ | |
358 | ||
359 | if (!http) | |
a51f28ec MS |
360 | { |
361 | _cups_globals_t *cg = _cupsGlobals(); | |
362 | /* Pointer to library globals */ | |
3d052e43 | 363 | |
a51f28ec MS |
364 | if ((http = cg->http) == NULL) |
365 | { | |
366 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No active connection."), 1); | |
367 | DEBUG_puts("1cupsGetResponse: No active connection - returning NULL."); | |
368 | return (NULL); | |
369 | } | |
370 | } | |
371 | ||
372 | if (http->state != HTTP_STATE_POST_RECV && http->state != HTTP_STATE_POST_SEND) | |
373 | { | |
374 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request sent."), 1); | |
375 | DEBUG_puts("1cupsGetResponse: Not in POST state - returning NULL."); | |
3d052e43 | 376 | return (NULL); |
a51f28ec | 377 | } |
3d052e43 MS |
378 | |
379 | /* | |
380 | * Check for an unfinished chunked request... | |
381 | */ | |
382 | ||
cb7f98ee | 383 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
3d052e43 MS |
384 | { |
385 | /* | |
386 | * Send a 0-length chunk to finish off the request... | |
387 | */ | |
388 | ||
e07d4801 | 389 | DEBUG_puts("2cupsGetResponse: Finishing chunked POST..."); |
3d052e43 MS |
390 | |
391 | if (httpWrite2(http, "", 0) < 0) | |
392 | return (NULL); | |
393 | } | |
394 | ||
395 | /* | |
396 | * Wait for a response from the server... | |
397 | */ | |
398 | ||
e07d4801 | 399 | DEBUG_printf(("2cupsGetResponse: Update loop, http->status=%d...", |
1ff0402e | 400 | http->status)); |
3d052e43 | 401 | |
e60ec91f MS |
402 | do |
403 | { | |
1ff0402e | 404 | status = httpUpdate(http); |
e60ec91f | 405 | } |
a469f8a5 | 406 | while (status == HTTP_STATUS_CONTINUE); |
3d052e43 | 407 | |
e07d4801 | 408 | DEBUG_printf(("2cupsGetResponse: status=%d", status)); |
3d052e43 | 409 | |
cb7f98ee | 410 | if (status == HTTP_STATUS_OK) |
3d052e43 MS |
411 | { |
412 | /* | |
413 | * Get the IPP response... | |
414 | */ | |
415 | ||
416 | response = ippNew(); | |
417 | ||
cb7f98ee MS |
418 | while ((state = ippRead(http, response)) != IPP_STATE_DATA) |
419 | if (state == IPP_STATE_ERROR) | |
3d052e43 MS |
420 | break; |
421 | ||
cb7f98ee | 422 | if (state == IPP_STATE_ERROR) |
3d052e43 MS |
423 | { |
424 | /* | |
f14324a7 | 425 | * Flush remaining data and delete the response... |
3d052e43 MS |
426 | */ |
427 | ||
e07d4801 | 428 | DEBUG_puts("1cupsGetResponse: IPP read error!"); |
3d052e43 | 429 | |
f14324a7 MS |
430 | httpFlush(http); |
431 | ||
3d052e43 MS |
432 | ippDelete(response); |
433 | response = NULL; | |
434 | ||
cb7f98ee | 435 | http->status = status = HTTP_STATUS_ERROR; |
a29fd7dd | 436 | http->error = EINVAL; |
3d052e43 MS |
437 | } |
438 | } | |
cb7f98ee | 439 | else if (status != HTTP_STATUS_ERROR) |
3d052e43 MS |
440 | { |
441 | /* | |
442 | * Flush any error message... | |
443 | */ | |
444 | ||
445 | httpFlush(http); | |
446 | ||
447 | /* | |
448 | * Then handle encryption and authentication... | |
449 | */ | |
450 | ||
cb7f98ee | 451 | if (status == HTTP_STATUS_UNAUTHORIZED) |
3d052e43 MS |
452 | { |
453 | /* | |
454 | * See if we can do authentication... | |
455 | */ | |
456 | ||
e07d4801 | 457 | DEBUG_puts("2cupsGetResponse: Need authorization..."); |
568fa3fa | 458 | |
e07d4801 | 459 | if (!cupsDoAuthentication(http, "POST", resource)) |
cb7f98ee | 460 | httpReconnect2(http, 30000, NULL); |
f11a948a | 461 | else |
cb7f98ee | 462 | http->status = status = HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED; |
3d052e43 MS |
463 | } |
464 | ||
465 | #ifdef HAVE_SSL | |
cb7f98ee | 466 | else if (status == HTTP_STATUS_UPGRADE_REQUIRED) |
3d052e43 MS |
467 | { |
468 | /* | |
469 | * Force a reconnect with encryption... | |
470 | */ | |
471 | ||
e07d4801 | 472 | DEBUG_puts("2cupsGetResponse: Need encryption..."); |
3d052e43 | 473 | |
cb7f98ee MS |
474 | if (!httpReconnect2(http, 30000, NULL)) |
475 | httpEncryption(http, HTTP_ENCRYPTION_REQUIRED); | |
3d052e43 MS |
476 | } |
477 | #endif /* HAVE_SSL */ | |
478 | } | |
479 | ||
480 | if (response) | |
481 | { | |
482 | ipp_attribute_t *attr; /* status-message attribute */ | |
483 | ||
484 | ||
485 | attr = ippFindAttribute(response, "status-message", IPP_TAG_TEXT); | |
486 | ||
e07d4801 | 487 | DEBUG_printf(("1cupsGetResponse: status-code=%s, status-message=\"%s\"", |
a603edef MS |
488 | ippErrorString(response->request.status.status_code), |
489 | attr ? attr->values[0].string.text : "")); | |
490 | ||
3d052e43 | 491 | _cupsSetError(response->request.status.status_code, |
749b1e90 MS |
492 | attr ? attr->values[0].string.text : |
493 | ippErrorString(response->request.status.status_code), 0); | |
3d052e43 | 494 | } |
3d052e43 MS |
495 | |
496 | return (response); | |
497 | } | |
498 | ||
499 | ||
6d2f911b | 500 | /* |
5a9febac MS |
501 | * 'cupsLastError()' - Return the last IPP status code received on the current |
502 | * thread. | |
6d2f911b MS |
503 | */ |
504 | ||
505 | ipp_status_t /* O - IPP status code from last request */ | |
506 | cupsLastError(void) | |
507 | { | |
508 | return (_cupsGlobals()->last_error); | |
509 | } | |
510 | ||
511 | ||
512 | /* | |
5a9febac MS |
513 | * 'cupsLastErrorString()' - Return the last IPP status-message received on the |
514 | * current thread. | |
6d2f911b | 515 | * |
f3c17241 | 516 | * @since CUPS 1.2/OS X 10.5@ |
6d2f911b MS |
517 | */ |
518 | ||
519 | const char * /* O - status-message text from last request */ | |
520 | cupsLastErrorString(void) | |
521 | { | |
522 | return (_cupsGlobals()->last_status_message); | |
523 | } | |
524 | ||
525 | ||
f14324a7 MS |
526 | /* |
527 | * '_cupsNextDelay()' - Return the next retry delay value. | |
528 | * | |
529 | * This function currently returns the Fibonacci sequence 1 1 2 3 5 8. | |
530 | * | |
531 | * Pass 0 for the current delay value to initialize the sequence. | |
532 | */ | |
533 | ||
534 | int /* O - Next delay value */ | |
535 | _cupsNextDelay(int current, /* I - Current delay value or 0 */ | |
536 | int *previous) /* IO - Previous delay value */ | |
537 | { | |
538 | int next; /* Next delay value */ | |
539 | ||
540 | ||
541 | if (current > 0) | |
542 | { | |
543 | next = (current + *previous) % 12; | |
544 | *previous = next < current ? 0 : current; | |
545 | } | |
546 | else | |
547 | { | |
548 | next = 1; | |
549 | *previous = 0; | |
550 | } | |
551 | ||
552 | return (next); | |
553 | } | |
554 | ||
555 | ||
3d052e43 MS |
556 | /* |
557 | * 'cupsReadResponseData()' - Read additional data after the IPP response. | |
558 | * | |
5a9febac MS |
559 | * This function is used after @link cupsGetResponse@ to read the PPD or document |
560 | * files from @code CUPS_GET_PPD@ and @code CUPS_GET_DOCUMENT@ requests, | |
561 | * respectively. | |
3d052e43 | 562 | * |
f3c17241 | 563 | * @since CUPS 1.4/OS X 10.6@ |
3d052e43 MS |
564 | */ |
565 | ||
566 | ssize_t /* O - Bytes read, 0 on EOF, -1 on error */ | |
567 | cupsReadResponseData( | |
568fa3fa | 568 | http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ |
3d052e43 MS |
569 | char *buffer, /* I - Buffer to use */ |
570 | size_t length) /* I - Number of bytes to read */ | |
571 | { | |
572 | /* | |
573 | * Get the default connection as needed... | |
574 | */ | |
575 | ||
a603edef | 576 | DEBUG_printf(("cupsReadResponseData(http=%p, buffer=%p, " |
e07d4801 | 577 | "length=" CUPS_LLFMT ")", http, buffer, CUPS_LLCAST length)); |
a603edef | 578 | |
3d052e43 MS |
579 | if (!http) |
580 | { | |
581 | _cups_globals_t *cg = _cupsGlobals(); | |
582 | /* Pointer to library globals */ | |
583 | ||
584 | if ((http = cg->http) == NULL) | |
585 | { | |
cb7f98ee | 586 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No active connection"), 1); |
3d052e43 MS |
587 | return (-1); |
588 | } | |
ecdc0628 | 589 | } |
ecdc0628 | 590 | |
3d052e43 MS |
591 | /* |
592 | * Then read from the HTTP connection... | |
593 | */ | |
594 | ||
595 | return (httpRead2(http, buffer, length)); | |
596 | } | |
597 | ||
598 | ||
599 | /* | |
600 | * 'cupsSendRequest()' - Send an IPP request. | |
601 | * | |
5a9febac MS |
602 | * Use @link cupsWriteRequestData@ to write any additional data (document, PPD |
603 | * file, etc.) for the request, @link cupsGetResponse@ to get the IPP response, | |
604 | * and @link cupsReadResponseData@ to read any additional data following the | |
605 | * response. Only one request can be sent/queued at a time per @code http_t@ | |
606 | * connection. | |
607 | * | |
cb7f98ee | 608 | * Returns the initial HTTP status code, which will be @code HTTP_STATUS_CONTINUE@ |
5a9febac | 609 | * on a successful send of the request. |
3d052e43 | 610 | * |
5a9febac MS |
611 | * Note: Unlike @link cupsDoFileRequest@, @link cupsDoIORequest@, and |
612 | * @link cupsDoRequest@, the request is NOT freed with @link ippDelete@. | |
3d052e43 | 613 | * |
f3c17241 | 614 | * @since CUPS 1.4/OS X 10.6@ |
3d052e43 MS |
615 | */ |
616 | ||
617 | http_status_t /* O - Initial HTTP status */ | |
568fa3fa | 618 | cupsSendRequest(http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ |
3d052e43 MS |
619 | ipp_t *request, /* I - IPP request */ |
620 | const char *resource, /* I - Resource path */ | |
ae71f5de | 621 | size_t length) /* I - Length of data to follow or @code CUPS_LENGTH_VARIABLE@ */ |
3d052e43 | 622 | { |
a469f8a5 MS |
623 | http_status_t status; /* Status of HTTP request */ |
624 | int got_status; /* Did we get the status? */ | |
625 | ipp_state_t state; /* State of IPP processing */ | |
626 | http_status_t expect; /* Expect: header to use */ | |
3d052e43 MS |
627 | |
628 | ||
a603edef | 629 | DEBUG_printf(("cupsSendRequest(http=%p, request=%p(%s), resource=\"%s\", " |
e07d4801 | 630 | "length=" CUPS_LLFMT ")", http, request, |
a603edef | 631 | request ? ippOpString(request->request.op.operation_id) : "?", |
e07d4801 | 632 | resource, CUPS_LLCAST length)); |
3d052e43 MS |
633 | |
634 | /* | |
635 | * Range check input... | |
636 | */ | |
637 | ||
638 | if (!request || !resource) | |
639 | { | |
cb7f98ee | 640 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
3d052e43 | 641 | |
cb7f98ee | 642 | return (HTTP_STATUS_ERROR); |
3d052e43 MS |
643 | } |
644 | ||
645 | /* | |
646 | * Get the default connection as needed... | |
647 | */ | |
648 | ||
649 | if (!http) | |
a603edef | 650 | if ((http = _cupsConnect()) == NULL) |
cb7f98ee | 651 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
3d052e43 | 652 | |
a4845881 MS |
653 | /* |
654 | * If the prior request was not flushed out, do so now... | |
655 | */ | |
656 | ||
cb7f98ee MS |
657 | if (http->state == HTTP_STATE_GET_SEND || |
658 | http->state == HTTP_STATE_POST_SEND) | |
10ddcf65 MS |
659 | { |
660 | DEBUG_puts("2cupsSendRequest: Flush prior response."); | |
a4845881 | 661 | httpFlush(http); |
10ddcf65 | 662 | } |
cb7f98ee | 663 | else if (http->state != HTTP_STATE_WAITING) |
a4845881 | 664 | { |
82cc1f9a MS |
665 | DEBUG_printf(("1cupsSendRequest: Unknown HTTP state (%d), " |
666 | "reconnecting.", http->state)); | |
cb7f98ee MS |
667 | if (httpReconnect2(http, 30000, NULL)) |
668 | return (HTTP_STATUS_ERROR); | |
a4845881 MS |
669 | } |
670 | ||
7594b224 | 671 | #ifdef HAVE_SSL |
672 | /* | |
673 | * See if we have an auth-info attribute and are communicating over | |
674 | * a non-local link. If so, encrypt the link so that we can pass | |
675 | * the authentication information securely... | |
676 | */ | |
677 | ||
678 | if (ippFindAttribute(request, "auth-info", IPP_TAG_TEXT) && | |
679 | !httpAddrLocalhost(http->hostaddr) && !http->tls && | |
cb7f98ee | 680 | httpEncryption(http, HTTP_ENCRYPTION_REQUIRED)) |
b19ccc9e | 681 | { |
10ddcf65 | 682 | DEBUG_puts("1cupsSendRequest: Unable to encrypt connection."); |
cb7f98ee | 683 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
b19ccc9e | 684 | } |
7594b224 | 685 | #endif /* HAVE_SSL */ |
686 | ||
1ff0402e MS |
687 | /* |
688 | * Reconnect if the last response had a "Connection: close"... | |
689 | */ | |
690 | ||
88f9aafc | 691 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_CONNECTION], "close")) |
10ddcf65 MS |
692 | { |
693 | DEBUG_puts("2cupsSendRequest: Connection: close"); | |
694 | httpClearFields(http); | |
cb7f98ee | 695 | if (httpReconnect2(http, 30000, NULL)) |
b19ccc9e | 696 | { |
10ddcf65 | 697 | DEBUG_puts("1cupsSendRequest: Unable to reconnect."); |
cb7f98ee | 698 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
b19ccc9e | 699 | } |
10ddcf65 | 700 | } |
1ff0402e | 701 | |
ecdc0628 | 702 | /* |
703 | * Loop until we can send the request without authorization problems. | |
704 | */ | |
705 | ||
cb7f98ee | 706 | expect = HTTP_STATUS_CONTINUE; |
ecdc0628 | 707 | |
3d052e43 | 708 | for (;;) |
ecdc0628 | 709 | { |
e07d4801 | 710 | DEBUG_puts("2cupsSendRequest: Setup..."); |
ecdc0628 | 711 | |
712 | /* | |
713 | * Setup the HTTP variables needed... | |
714 | */ | |
715 | ||
ecdc0628 | 716 | httpClearFields(http); |
0268488e | 717 | httpSetExpect(http, expect); |
ecdc0628 | 718 | httpSetField(http, HTTP_FIELD_CONTENT_TYPE, "application/ipp"); |
0268488e MS |
719 | httpSetLength(http, length); |
720 | ||
721 | #ifdef HAVE_GSSAPI | |
722 | if (http->authstring && !strncmp(http->authstring, "Negotiate", 9)) | |
723 | { | |
724 | /* | |
725 | * Do not use cached Kerberos credentials since they will look like a | |
726 | * "replay" attack... | |
727 | */ | |
728 | ||
eac3a0a0 | 729 | _cupsSetNegotiateAuthString(http, "POST", resource); |
0268488e | 730 | } |
0268488e | 731 | #endif /* HAVE_GSSAPI */ |
f14324a7 | 732 | |
ecdc0628 | 733 | httpSetField(http, HTTP_FIELD_AUTHORIZATION, http->authstring); |
734 | ||
e07d4801 | 735 | DEBUG_printf(("2cupsSendRequest: authstring=\"%s\"", http->authstring)); |
ecdc0628 | 736 | |
737 | /* | |
738 | * Try the request... | |
739 | */ | |
740 | ||
e07d4801 | 741 | DEBUG_puts("2cupsSendRequest: Sending HTTP POST..."); |
ecdc0628 | 742 | |
743 | if (httpPost(http, resource)) | |
744 | { | |
10ddcf65 | 745 | DEBUG_puts("2cupsSendRequest: POST failed, reconnecting."); |
cb7f98ee | 746 | if (httpReconnect2(http, 30000, NULL)) |
b19ccc9e | 747 | { |
10ddcf65 | 748 | DEBUG_puts("1cupsSendRequest: Unable to reconnect."); |
cb7f98ee | 749 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
b19ccc9e | 750 | } |
ecdc0628 | 751 | else |
752 | continue; | |
753 | } | |
754 | ||
755 | /* | |
d6ae789d | 756 | * Send the IPP data... |
ecdc0628 | 757 | */ |
758 | ||
e07d4801 | 759 | DEBUG_puts("2cupsSendRequest: Writing IPP request..."); |
b423cd4c | 760 | |
cb7f98ee MS |
761 | request->state = IPP_STATE_IDLE; |
762 | status = HTTP_STATUS_CONTINUE; | |
d6ae789d | 763 | got_status = 0; |
764 | ||
cb7f98ee | 765 | while ((state = ippWrite(http, request)) != IPP_STATE_DATA) |
a51f28ec MS |
766 | { |
767 | if (httpCheck(http)) | |
d6ae789d | 768 | { |
769 | got_status = 1; | |
770 | ||
e60ec91f | 771 | _httpUpdate(http, &status); |
cb7f98ee | 772 | if (status >= HTTP_STATUS_MULTIPLE_CHOICES) |
d6ae789d | 773 | break; |
774 | } | |
a51f28ec MS |
775 | else if (state == IPP_STATE_ERROR) |
776 | break; | |
777 | } | |
d6ae789d | 778 | |
cb7f98ee | 779 | if (state == IPP_STATE_ERROR) |
22c9029b | 780 | { |
a51f28ec MS |
781 | /* |
782 | * We weren't able to send the IPP request. But did we already get a HTTP | |
783 | * error status? | |
784 | */ | |
10ddcf65 | 785 | |
a51f28ec MS |
786 | if (!got_status || status < HTTP_STATUS_MULTIPLE_CHOICES) |
787 | { | |
788 | /* | |
789 | * No, something else went wrong. | |
790 | */ | |
22c9029b | 791 | |
a51f28ec MS |
792 | DEBUG_puts("1cupsSendRequest: Unable to send IPP request."); |
793 | ||
794 | http->status = HTTP_STATUS_ERROR; | |
795 | http->state = HTTP_STATE_WAITING; | |
796 | ||
797 | return (HTTP_STATUS_ERROR); | |
798 | } | |
22c9029b MS |
799 | } |
800 | ||
3d052e43 MS |
801 | /* |
802 | * Wait up to 1 second to get the 100-continue response as needed... | |
803 | */ | |
ecdc0628 | 804 | |
e60ec91f | 805 | if (!got_status) |
3d052e43 | 806 | { |
cb7f98ee | 807 | if (expect == HTTP_STATUS_CONTINUE) |
e60ec91f MS |
808 | { |
809 | DEBUG_puts("2cupsSendRequest: Waiting for 100-continue..."); | |
a603edef | 810 | |
e60ec91f MS |
811 | if (httpWait(http, 1000)) |
812 | _httpUpdate(http, &status); | |
813 | } | |
814 | else if (httpCheck(http)) | |
815 | _httpUpdate(http, &status); | |
d6ae789d | 816 | } |
ecdc0628 | 817 | |
e07d4801 | 818 | DEBUG_printf(("2cupsSendRequest: status=%d", status)); |
a603edef | 819 | |
ecdc0628 | 820 | /* |
3d052e43 | 821 | * Process the current HTTP status... |
ecdc0628 | 822 | */ |
823 | ||
a469f8a5 | 824 | if (status >= HTTP_STATUS_MULTIPLE_CHOICES) |
83e08001 | 825 | { |
a469f8a5 MS |
826 | int temp_status; /* Temporary status */ |
827 | ||
83e08001 MS |
828 | _cupsSetHTTPError(status); |
829 | ||
830 | do | |
831 | { | |
a469f8a5 | 832 | temp_status = httpUpdate(http); |
83e08001 | 833 | } |
a469f8a5 MS |
834 | while (temp_status != HTTP_STATUS_ERROR && |
835 | http->state == HTTP_STATE_POST_RECV); | |
83e08001 | 836 | |
ba55dc12 | 837 | httpFlush(http); |
83e08001 | 838 | } |
ba55dc12 | 839 | |
3d052e43 | 840 | switch (status) |
ecdc0628 | 841 | { |
a469f8a5 MS |
842 | case HTTP_STATUS_CONTINUE : |
843 | case HTTP_STATUS_OK : | |
844 | case HTTP_STATUS_ERROR : | |
10ddcf65 | 845 | DEBUG_printf(("1cupsSendRequest: Returning %d.", status)); |
3d052e43 | 846 | return (status); |
ecdc0628 | 847 | |
a469f8a5 | 848 | case HTTP_STATUS_UNAUTHORIZED : |
ba55dc12 | 849 | if (cupsDoAuthentication(http, "POST", resource)) |
10ddcf65 | 850 | { |
cb7f98ee MS |
851 | DEBUG_puts("1cupsSendRequest: Returning HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED."); |
852 | return (HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED); | |
10ddcf65 MS |
853 | } |
854 | ||
cb7f98ee | 855 | DEBUG_puts("2cupsSendRequest: Reconnecting after HTTP_STATUS_UNAUTHORIZED."); |
ba55dc12 | 856 | |
cb7f98ee | 857 | if (httpReconnect2(http, 30000, NULL)) |
f11a948a | 858 | { |
10ddcf65 | 859 | DEBUG_puts("1cupsSendRequest: Unable to reconnect."); |
cb7f98ee | 860 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
f11a948a | 861 | } |
ba55dc12 | 862 | break; |
89d46774 | 863 | |
ecdc0628 | 864 | #ifdef HAVE_SSL |
a469f8a5 | 865 | case HTTP_STATUS_UPGRADE_REQUIRED : |
3d052e43 MS |
866 | /* |
867 | * Flush any error message, reconnect, and then upgrade with | |
868 | * encryption... | |
869 | */ | |
ecdc0628 | 870 | |
10ddcf65 | 871 | DEBUG_puts("2cupsSendRequest: Reconnecting after " |
cb7f98ee | 872 | "HTTP_STATUS_UPGRADE_REQUIRED."); |
10ddcf65 | 873 | |
cb7f98ee | 874 | if (httpReconnect2(http, 30000, NULL)) |
b19ccc9e | 875 | { |
10ddcf65 | 876 | DEBUG_puts("1cupsSendRequest: Unable to reconnect."); |
cb7f98ee | 877 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
b19ccc9e | 878 | } |
ecdc0628 | 879 | |
10ddcf65 | 880 | DEBUG_puts("2cupsSendRequest: Upgrading to TLS."); |
cb7f98ee | 881 | if (httpEncryption(http, HTTP_ENCRYPTION_REQUIRED)) |
ba55dc12 | 882 | { |
10ddcf65 | 883 | DEBUG_puts("1cupsSendRequest: Unable to encrypt connection."); |
cb7f98ee | 884 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
ba55dc12 MS |
885 | } |
886 | break; | |
ecdc0628 | 887 | #endif /* HAVE_SSL */ |
f301802f | 888 | |
a469f8a5 | 889 | case HTTP_STATUS_EXPECTATION_FAILED : |
3d052e43 MS |
890 | /* |
891 | * Don't try using the Expect: header the next time around... | |
892 | */ | |
ecdc0628 | 893 | |
3d052e43 | 894 | expect = (http_status_t)0; |
52f6f666 | 895 | |
10ddcf65 MS |
896 | DEBUG_puts("2cupsSendRequest: Reconnecting after " |
897 | "HTTP_EXPECTATION_FAILED."); | |
898 | ||
cb7f98ee | 899 | if (httpReconnect2(http, 30000, NULL)) |
52f6f666 | 900 | { |
10ddcf65 | 901 | DEBUG_puts("1cupsSendRequest: Unable to reconnect."); |
cb7f98ee | 902 | return (HTTP_STATUS_SERVICE_UNAVAILABLE); |
52f6f666 | 903 | } |
a603edef | 904 | break; |
ecdc0628 | 905 | |
3d052e43 MS |
906 | default : |
907 | /* | |
908 | * Some other error... | |
909 | */ | |
ecdc0628 | 910 | |
3d052e43 | 911 | return (status); |
b94498cf | 912 | } |
913 | } | |
3d052e43 MS |
914 | } |
915 | ||
916 | ||
917 | /* | |
918 | * 'cupsWriteRequestData()' - Write additional data after an IPP request. | |
919 | * | |
568fa3fa MS |
920 | * This function is used after @link cupsSendRequest@ to provide a PPD and |
921 | * after @link cupsStartDocument@ to provide a document file. | |
3d052e43 | 922 | * |
f3c17241 | 923 | * @since CUPS 1.4/OS X 10.6@ |
3d052e43 | 924 | */ |
ecdc0628 | 925 | |
cb7f98ee | 926 | http_status_t /* O - @code HTTP_STATUS_CONTINUE@ if OK or HTTP status on error */ |
3d052e43 | 927 | cupsWriteRequestData( |
568fa3fa | 928 | http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ |
3d052e43 MS |
929 | const char *buffer, /* I - Bytes to write */ |
930 | size_t length) /* I - Number of bytes to write */ | |
931 | { | |
38e73f87 MS |
932 | int wused; /* Previous bytes in buffer */ |
933 | ||
934 | ||
ecdc0628 | 935 | /* |
3d052e43 | 936 | * Get the default connection as needed... |
ecdc0628 | 937 | */ |
ecdc0628 | 938 | |
a603edef | 939 | DEBUG_printf(("cupsWriteRequestData(http=%p, buffer=%p, " |
e07d4801 | 940 | "length=" CUPS_LLFMT ")", http, buffer, CUPS_LLCAST length)); |
a603edef | 941 | |
3d052e43 | 942 | if (!http) |
ecdc0628 | 943 | { |
3d052e43 MS |
944 | _cups_globals_t *cg = _cupsGlobals(); |
945 | /* Pointer to library globals */ | |
ecdc0628 | 946 | |
3d052e43 MS |
947 | if ((http = cg->http) == NULL) |
948 | { | |
cb7f98ee MS |
949 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No active connection"), 1); |
950 | DEBUG_puts("1cupsWriteRequestData: Returning HTTP_STATUS_ERROR."); | |
951 | return (HTTP_STATUS_ERROR); | |
3d052e43 | 952 | } |
ecdc0628 | 953 | } |
ecdc0628 | 954 | |
3d052e43 MS |
955 | /* |
956 | * Then write to the HTTP connection... | |
957 | */ | |
ecdc0628 | 958 | |
38e73f87 MS |
959 | wused = http->wused; |
960 | ||
3d052e43 | 961 | if (httpWrite2(http, buffer, length) < 0) |
10d09e33 | 962 | { |
cb7f98ee MS |
963 | DEBUG_puts("1cupsWriteRequestData: Returning HTTP_STATUS_ERROR."); |
964 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(http->error), 0); | |
965 | return (HTTP_STATUS_ERROR); | |
10d09e33 | 966 | } |
ecdc0628 | 967 | |
3d052e43 MS |
968 | /* |
969 | * Finally, check if we have any pending data from the server... | |
970 | */ | |
ecdc0628 | 971 | |
f11a948a | 972 | if (length >= HTTP_MAX_BUFFER || |
38e73f87 MS |
973 | http->wused < wused || |
974 | (wused > 0 && http->wused == length)) | |
975 | { | |
976 | /* | |
977 | * We've written something to the server, so check for response data... | |
978 | */ | |
979 | ||
980 | if (_httpWait(http, 0, 1)) | |
ba55dc12 | 981 | { |
e60ec91f | 982 | http_status_t status; /* Status from _httpUpdate */ |
ba55dc12 | 983 | |
e60ec91f | 984 | _httpUpdate(http, &status); |
cb7f98ee | 985 | if (status >= HTTP_STATUS_MULTIPLE_CHOICES) |
10d09e33 MS |
986 | { |
987 | _cupsSetHTTPError(status); | |
83e08001 MS |
988 | |
989 | do | |
990 | { | |
991 | status = httpUpdate(http); | |
992 | } | |
cb7f98ee | 993 | while (status != HTTP_STATUS_ERROR && http->state == HTTP_STATE_POST_RECV); |
83e08001 | 994 | |
ba55dc12 | 995 | httpFlush(http); |
10d09e33 | 996 | } |
ba55dc12 | 997 | |
10d09e33 | 998 | DEBUG_printf(("1cupsWriteRequestData: Returning %d.\n", status)); |
ba55dc12 MS |
999 | return (status); |
1000 | } | |
38e73f87 MS |
1001 | } |
1002 | ||
cb7f98ee MS |
1003 | DEBUG_puts("1cupsWriteRequestData: Returning HTTP_STATUS_CONTINUE."); |
1004 | return (HTTP_STATUS_CONTINUE); | |
ecdc0628 | 1005 | } |
1006 | ||
1007 | ||
6d2f911b MS |
1008 | /* |
1009 | * '_cupsConnect()' - Get the default server connection... | |
1010 | */ | |
1011 | ||
1012 | http_t * /* O - HTTP connection */ | |
1013 | _cupsConnect(void) | |
1014 | { | |
1015 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
1016 | ||
1017 | ||
1018 | /* | |
1019 | * See if we are connected to the same server... | |
1020 | */ | |
1021 | ||
1022 | if (cg->http) | |
1023 | { | |
1024 | /* | |
1025 | * Compare the connection hostname, port, and encryption settings to | |
1026 | * the cached defaults; these were initialized the first time we | |
1027 | * connected... | |
1028 | */ | |
1029 | ||
1030 | if (strcmp(cg->http->hostname, cg->server) || | |
a469f8a5 | 1031 | cg->ipp_port != httpAddrPort(cg->http->hostaddr) || |
6d2f911b | 1032 | (cg->http->encryption != cg->encryption && |
cb7f98ee | 1033 | cg->http->encryption == HTTP_ENCRYPTION_NEVER)) |
6d2f911b MS |
1034 | { |
1035 | /* | |
1036 | * Need to close the current connection because something has changed... | |
1037 | */ | |
1038 | ||
1039 | httpClose(cg->http); | |
1040 | cg->http = NULL; | |
1041 | } | |
0fa6c7fa MS |
1042 | else |
1043 | { | |
1044 | /* | |
1045 | * Same server, see if the connection is still established... | |
1046 | */ | |
1047 | ||
80360a5e MS |
1048 | char ch; /* Connection check byte */ |
1049 | ssize_t n; /* Number of bytes */ | |
0fa6c7fa | 1050 | |
db8b865d | 1051 | #ifdef WIN32 |
80360a5e MS |
1052 | if ((n = recv(cg->http->fd, &ch, 1, MSG_PEEK)) == 0 || |
1053 | (n < 0 && WSAGetLastError() != WSAEWOULDBLOCK)) | |
db8b865d | 1054 | #else |
80360a5e MS |
1055 | if ((n = recv(cg->http->fd, &ch, 1, MSG_PEEK | MSG_DONTWAIT)) == 0 || |
1056 | (n < 0 && errno != EWOULDBLOCK)) | |
db8b865d | 1057 | #endif /* WIN32 */ |
0fa6c7fa MS |
1058 | { |
1059 | /* | |
1060 | * Nope, close the connection... | |
1061 | */ | |
1062 | ||
1063 | httpClose(cg->http); | |
1064 | cg->http = NULL; | |
1065 | } | |
1066 | } | |
6d2f911b MS |
1067 | } |
1068 | ||
1069 | /* | |
1070 | * (Re)connect as needed... | |
1071 | */ | |
1072 | ||
1073 | if (!cg->http) | |
1074 | { | |
cb7f98ee MS |
1075 | if ((cg->http = httpConnect2(cupsServer(), ippPort(), NULL, AF_UNSPEC, |
1076 | cupsEncryption(), 1, 30000, NULL)) == NULL) | |
6d2f911b MS |
1077 | { |
1078 | if (errno) | |
cb7f98ee | 1079 | _cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE, NULL, 0); |
6d2f911b | 1080 | else |
cb7f98ee | 1081 | _cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE, |
6d2f911b MS |
1082 | _("Unable to connect to host."), 1); |
1083 | } | |
1084 | } | |
1085 | ||
1086 | /* | |
1087 | * Return the cached connection... | |
1088 | */ | |
1089 | ||
1090 | return (cg->http); | |
1091 | } | |
1092 | ||
1093 | ||
ecdc0628 | 1094 | /* |
1095 | * '_cupsSetError()' - Set the last IPP status code and status-message. | |
1096 | */ | |
1097 | ||
1098 | void | |
1099 | _cupsSetError(ipp_status_t status, /* I - IPP status code */ | |
749b1e90 MS |
1100 | const char *message, /* I - status-message value */ |
1101 | int localize) /* I - Localize the message? */ | |
ecdc0628 | 1102 | { |
1103 | _cups_globals_t *cg; /* Global data */ | |
1104 | ||
1105 | ||
749b1e90 MS |
1106 | if (!message && errno) |
1107 | { | |
1108 | message = strerror(errno); | |
1109 | localize = 0; | |
1110 | } | |
1111 | ||
ecdc0628 | 1112 | cg = _cupsGlobals(); |
1113 | cg->last_error = status; | |
1114 | ||
1115 | if (cg->last_status_message) | |
1116 | { | |
749b1e90 | 1117 | _cupsStrFree(cg->last_status_message); |
ecdc0628 | 1118 | |
1119 | cg->last_status_message = NULL; | |
1120 | } | |
1121 | ||
1122 | if (message) | |
749b1e90 MS |
1123 | { |
1124 | if (localize) | |
1125 | { | |
1126 | /* | |
1127 | * Get the message catalog... | |
1128 | */ | |
1129 | ||
1130 | if (!cg->lang_default) | |
1131 | cg->lang_default = cupsLangDefault(); | |
1132 | ||
1133 | cg->last_status_message = _cupsStrAlloc(_cupsLangString(cg->lang_default, | |
1134 | message)); | |
1135 | } | |
1136 | else | |
1137 | cg->last_status_message = _cupsStrAlloc(message); | |
1138 | } | |
a603edef | 1139 | |
e07d4801 MS |
1140 | DEBUG_printf(("4_cupsSetError: last_error=%s, last_status_message=\"%s\"", |
1141 | ippErrorString(cg->last_error), cg->last_status_message)); | |
ecdc0628 | 1142 | } |
1143 | ||
1144 | ||
1145 | /* | |
355e94dc MS |
1146 | * '_cupsSetHTTPError()' - Set the last error using the HTTP status. |
1147 | */ | |
1148 | ||
1149 | void | |
1150 | _cupsSetHTTPError(http_status_t status) /* I - HTTP status code */ | |
1151 | { | |
1152 | switch (status) | |
1153 | { | |
cb7f98ee MS |
1154 | case HTTP_STATUS_NOT_FOUND : |
1155 | _cupsSetError(IPP_STATUS_ERROR_NOT_FOUND, httpStatus(status), 0); | |
355e94dc MS |
1156 | break; |
1157 | ||
cb7f98ee MS |
1158 | case HTTP_STATUS_UNAUTHORIZED : |
1159 | _cupsSetError(IPP_STATUS_ERROR_NOT_AUTHENTICATED, httpStatus(status), 0); | |
355e94dc MS |
1160 | break; |
1161 | ||
cb7f98ee MS |
1162 | case HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED : |
1163 | _cupsSetError(IPP_STATUS_ERROR_CUPS_AUTHENTICATION_CANCELED, httpStatus(status), 0); | |
7cf5915e MS |
1164 | break; |
1165 | ||
cb7f98ee MS |
1166 | case HTTP_STATUS_FORBIDDEN : |
1167 | _cupsSetError(IPP_STATUS_ERROR_FORBIDDEN, httpStatus(status), 0); | |
355e94dc MS |
1168 | break; |
1169 | ||
cb7f98ee MS |
1170 | case HTTP_STATUS_BAD_REQUEST : |
1171 | _cupsSetError(IPP_STATUS_ERROR_BAD_REQUEST, httpStatus(status), 0); | |
355e94dc MS |
1172 | break; |
1173 | ||
cb7f98ee MS |
1174 | case HTTP_STATUS_REQUEST_TOO_LARGE : |
1175 | _cupsSetError(IPP_STATUS_ERROR_REQUEST_VALUE, httpStatus(status), 0); | |
355e94dc MS |
1176 | break; |
1177 | ||
cb7f98ee MS |
1178 | case HTTP_STATUS_NOT_IMPLEMENTED : |
1179 | _cupsSetError(IPP_STATUS_ERROR_OPERATION_NOT_SUPPORTED, httpStatus(status), 0); | |
355e94dc MS |
1180 | break; |
1181 | ||
cb7f98ee MS |
1182 | case HTTP_STATUS_NOT_SUPPORTED : |
1183 | _cupsSetError(IPP_STATUS_ERROR_VERSION_NOT_SUPPORTED, httpStatus(status), 0); | |
355e94dc MS |
1184 | break; |
1185 | ||
cb7f98ee MS |
1186 | case HTTP_STATUS_UPGRADE_REQUIRED : |
1187 | _cupsSetError(IPP_STATUS_ERROR_CUPS_UPGRADE_REQUIRED, httpStatus(status), 0); | |
7cf5915e MS |
1188 | break; |
1189 | ||
cb7f98ee MS |
1190 | case HTTP_STATUS_CUPS_PKI_ERROR : |
1191 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, httpStatus(status), 0); | |
7cf5915e MS |
1192 | break; |
1193 | ||
cb7f98ee MS |
1194 | case HTTP_STATUS_ERROR : |
1195 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); | |
10d09e33 MS |
1196 | break; |
1197 | ||
355e94dc | 1198 | default : |
e07d4801 | 1199 | DEBUG_printf(("4_cupsSetHTTPError: HTTP error %d mapped to " |
cb7f98ee MS |
1200 | "IPP_STATUS_ERROR_SERVICE_UNAVAILABLE!", status)); |
1201 | _cupsSetError(IPP_STATUS_ERROR_SERVICE_UNAVAILABLE, httpStatus(status), 0); | |
355e94dc MS |
1202 | break; |
1203 | } | |
1204 | } | |
1205 | ||
1206 | ||
1207 | /* | |
a51f28ec | 1208 | * End of "$Id: request.c 11867 2014-05-09 20:33:08Z msweet $". |
ecdc0628 | 1209 | */ |