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ef416fc2 | 1 | /* |
f7deaa1a | 2 | * "$Id: http.c 6285 2007-02-16 01:10:55Z mike $" |
ef416fc2 | 3 | * |
4 | * HTTP routines for the Common UNIX Printing System (CUPS). | |
5 | * | |
b86bc4cf | 6 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 7 | * |
f7deaa1a | 8 | * This file contains Kerberos support code, copyright 2006 by |
9 | * Jelmer Vernooij. | |
10 | * | |
ef416fc2 | 11 | * These coded instructions, statements, and computer programs are the |
12 | * property of Easy Software Products and are protected by Federal | |
13 | * copyright law. Distribution and use rights are outlined in the file | |
14 | * "LICENSE.txt" which should have been included with this file. If this | |
15 | * file is missing or damaged please contact Easy Software Products | |
16 | * at: | |
17 | * | |
18 | * Attn: CUPS Licensing Information | |
19 | * Easy Software Products | |
20 | * 44141 Airport View Drive, Suite 204 | |
21 | * Hollywood, Maryland 20636 USA | |
22 | * | |
23 | * Voice: (301) 373-9600 | |
24 | * EMail: cups-info@cups.org | |
25 | * WWW: http://www.cups.org | |
26 | * | |
27 | * This file is subject to the Apple OS-Developed Software exception. | |
28 | * | |
29 | * Contents: | |
30 | * | |
411affcf | 31 | * _httpBIOMethods() - Get the OpenSSL BIO methods for HTTP connections. |
ecdc0628 | 32 | * httpBlocking() - Set blocking/non-blocking behavior on a connection. |
ef416fc2 | 33 | * httpCheck() - Check to see if there is a pending response from |
34 | * the server. | |
35 | * httpClearCookie() - Clear the cookie value(s). | |
ecdc0628 | 36 | * httpClearFields() - Clear HTTP request fields. |
ef416fc2 | 37 | * httpClose() - Close an HTTP connection... |
38 | * httpConnect() - Connect to a HTTP server. | |
39 | * httpConnectEncrypt() - Connect to a HTTP server using encryption. | |
40 | * httpDelete() - Send a DELETE request to the server. | |
41 | * httpEncryption() - Set the required encryption on the link. | |
ecdc0628 | 42 | * httpError() - Get the last error on a connection. |
ef416fc2 | 43 | * httpFlush() - Flush data from a HTTP connection. |
44 | * httpFlushWrite() - Flush data in write buffer. | |
45 | * httpGet() - Send a GET request to the server. | |
ecdc0628 | 46 | * httpGetBlocking() - Get the blocking/non-block state of a connection. |
47 | * httpGetCookie() - Get any cookie data from the response. | |
48 | * httpGetFd() - Get the file descriptor associated with a | |
49 | * connection. | |
50 | * httpGetField() - Get a field value from a request/response. | |
ef416fc2 | 51 | * httpGetLength() - Get the amount of data remaining from the |
52 | * content-length or transfer-encoding fields. | |
53 | * httpGetLength2() - Get the amount of data remaining from the | |
54 | * content-length or transfer-encoding fields. | |
ecdc0628 | 55 | * httpGetStatus() - Get the status of the last HTTP request. |
ef416fc2 | 56 | * httpGetSubField() - Get a sub-field value. |
57 | * httpGets() - Get a line of text from a HTTP connection. | |
58 | * httpHead() - Send a HEAD request to the server. | |
59 | * httpInitialize() - Initialize the HTTP interface library and set the | |
60 | * default HTTP proxy (if any). | |
61 | * httpOptions() - Send an OPTIONS request to the server. | |
62 | * httpPost() - Send a POST request to the server. | |
63 | * httpPrintf() - Print a formatted string to a HTTP connection. | |
64 | * httpPut() - Send a PUT request to the server. | |
65 | * httpRead() - Read data from a HTTP connection. | |
a4d04587 | 66 | * httpRead2() - Read data from a HTTP connection. |
411affcf | 67 | * _httpReadCDSA() - Read function for the CDSA library. |
68 | * _httpReadGNUTLS() - Read function for the GNU TLS library. | |
ef416fc2 | 69 | * httpReconnect() - Reconnect to a HTTP server... |
70 | * httpSetCookie() - Set the cookie value(s)... | |
b423cd4c | 71 | * httpSetExpect() - Set the Expect: header in a request. |
ef416fc2 | 72 | * httpSetField() - Set the value of an HTTP header. |
73 | * httpSetLength() - Set the content-length and transfer-encoding. | |
74 | * httpTrace() - Send an TRACE request to the server. | |
75 | * httpUpdate() - Update the current HTTP state for incoming data. | |
76 | * httpWait() - Wait for data available on a connection. | |
77 | * httpWrite() - Write data to a HTTP connection. | |
a4d04587 | 78 | * httpWrite2() - Write data to a HTTP connection. |
411affcf | 79 | * _httpWriteCDSA() - Write function for the CDSA library. |
80 | * _httpWriteGNUTLS() - Write function for the GNU TLS library. | |
81 | * http_bio_ctrl() - Control the HTTP connection. | |
82 | * http_bio_free() - Free OpenSSL data. | |
83 | * http_bio_new() - Initialize an OpenSSL BIO structure. | |
84 | * http_bio_puts() - Send a string for OpenSSL. | |
85 | * http_bio_read() - Read data for OpenSSL. | |
86 | * http_bio_write() - Write data for OpenSSL. | |
ef416fc2 | 87 | * http_field() - Return the field index for a field name. |
88 | * http_read_ssl() - Read from a SSL/TLS connection. | |
89 | * http_send() - Send a request with all fields and the trailing | |
90 | * blank line. | |
91 | * http_setup_ssl() - Set up SSL/TLS on a connection. | |
92 | * http_shutdown_ssl() - Shut down SSL/TLS on a connection. | |
93 | * http_upgrade() - Force upgrade to TLS encryption. | |
94 | * http_wait() - Wait for data available on a connection. | |
95 | * http_write() - Write data to a connection. | |
96 | * http_write_ssl() - Write to a SSL/TLS connection. | |
97 | */ | |
98 | ||
99 | /* | |
100 | * Include necessary headers... | |
101 | */ | |
102 | ||
103 | #include "http-private.h" | |
104 | #include "globals.h" | |
105 | #include "debug.h" | |
106 | #include <stdlib.h> | |
107 | #include <fcntl.h> | |
108 | #include <errno.h> | |
109 | #ifndef WIN32 | |
110 | # include <signal.h> | |
111 | # include <sys/time.h> | |
112 | # include <sys/resource.h> | |
113 | #endif /* !WIN32 */ | |
f7deaa1a | 114 | #ifdef HAVE_POLL |
115 | # include <sys/poll.h> | |
116 | #endif /* HAVE_POLL */ | |
ef416fc2 | 117 | |
118 | ||
119 | /* | |
120 | * Some operating systems have done away with the Fxxxx constants for | |
121 | * the fcntl() call; this works around that "feature"... | |
122 | */ | |
123 | ||
124 | #ifndef FNONBLK | |
125 | # define FNONBLK O_NONBLOCK | |
126 | #endif /* !FNONBLK */ | |
127 | ||
128 | ||
129 | /* | |
130 | * Local functions... | |
131 | */ | |
132 | ||
133 | static http_field_t http_field(const char *name); | |
134 | static int http_send(http_t *http, http_state_t request, | |
135 | const char *uri); | |
411affcf | 136 | static int http_wait(http_t *http, int msec, int usessl); |
ef416fc2 | 137 | static int http_write(http_t *http, const char *buffer, |
138 | int length); | |
139 | static int http_write_chunk(http_t *http, const char *buffer, | |
140 | int length); | |
141 | #ifdef HAVE_SSL | |
142 | static int http_read_ssl(http_t *http, char *buf, int len); | |
143 | static int http_setup_ssl(http_t *http); | |
144 | static void http_shutdown_ssl(http_t *http); | |
145 | static int http_upgrade(http_t *http); | |
146 | static int http_write_ssl(http_t *http, const char *buf, int len); | |
147 | #endif /* HAVE_SSL */ | |
148 | ||
149 | ||
150 | /* | |
151 | * Local globals... | |
152 | */ | |
153 | ||
154 | static const char * const http_fields[] = | |
155 | { | |
156 | "Accept-Language", | |
157 | "Accept-Ranges", | |
158 | "Authorization", | |
159 | "Connection", | |
160 | "Content-Encoding", | |
161 | "Content-Language", | |
162 | "Content-Length", | |
163 | "Content-Location", | |
164 | "Content-MD5", | |
165 | "Content-Range", | |
166 | "Content-Type", | |
167 | "Content-Version", | |
168 | "Date", | |
169 | "Host", | |
170 | "If-Modified-Since", | |
171 | "If-Unmodified-since", | |
172 | "Keep-Alive", | |
173 | "Last-Modified", | |
174 | "Link", | |
175 | "Location", | |
176 | "Range", | |
177 | "Referer", | |
178 | "Retry-After", | |
179 | "Transfer-Encoding", | |
180 | "Upgrade", | |
181 | "User-Agent", | |
182 | "WWW-Authenticate" | |
183 | }; | |
184 | ||
185 | ||
411affcf | 186 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) |
187 | /* | |
188 | * BIO methods for OpenSSL... | |
189 | */ | |
190 | ||
191 | static int http_bio_write(BIO *h, const char *buf, int num); | |
192 | static int http_bio_read(BIO *h, char *buf, int size); | |
193 | static int http_bio_puts(BIO *h, const char *str); | |
194 | static long http_bio_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
195 | static int http_bio_new(BIO *h); | |
196 | static int http_bio_free(BIO *data); | |
197 | ||
198 | static BIO_METHOD http_bio_methods = | |
199 | { | |
200 | BIO_TYPE_SOCKET, | |
201 | "http", | |
202 | http_bio_write, | |
203 | http_bio_read, | |
204 | http_bio_puts, | |
205 | NULL, /* http_bio_gets, */ | |
206 | http_bio_ctrl, | |
207 | http_bio_new, | |
208 | http_bio_free, | |
209 | NULL, | |
210 | }; | |
211 | ||
212 | ||
213 | /* | |
214 | * '_httpBIOMethods()' - Get the OpenSSL BIO methods for HTTP connections. | |
215 | */ | |
216 | ||
217 | BIO_METHOD * /* O - BIO methods for OpenSSL */ | |
218 | _httpBIOMethods(void) | |
219 | { | |
220 | return (&http_bio_methods); | |
221 | } | |
222 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
223 | ||
224 | ||
ecdc0628 | 225 | /* |
226 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
227 | */ | |
228 | ||
229 | void | |
230 | httpBlocking(http_t *http, /* I - HTTP connection */ | |
231 | int b) /* I - 1 = blocking, 0 = non-blocking */ | |
232 | { | |
233 | if (http) | |
234 | http->blocking = b; | |
235 | } | |
236 | ||
237 | ||
ef416fc2 | 238 | /* |
239 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
240 | */ | |
241 | ||
ecdc0628 | 242 | int /* O - 0 = no data, 1 = data available */ |
243 | httpCheck(http_t *http) /* I - HTTP connection */ | |
ef416fc2 | 244 | { |
245 | return (httpWait(http, 0)); | |
246 | } | |
247 | ||
248 | ||
249 | /* | |
250 | * 'httpClearCookie()' - Clear the cookie value(s). | |
251 | * | |
252 | * @since CUPS 1.1.19@ | |
253 | */ | |
254 | ||
255 | void | |
ecdc0628 | 256 | httpClearCookie(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 257 | { |
258 | if (!http) | |
259 | return; | |
260 | ||
261 | if (http->cookie) | |
262 | { | |
263 | free(http->cookie); | |
264 | http->cookie = NULL; | |
265 | } | |
266 | } | |
267 | ||
268 | ||
ecdc0628 | 269 | /* |
270 | * 'httpClearFields()' - Clear HTTP request fields. | |
271 | */ | |
272 | ||
273 | void | |
274 | httpClearFields(http_t *http) /* I - HTTP connection */ | |
275 | { | |
276 | if (http) | |
277 | { | |
278 | memset(http->fields, 0, sizeof(http->fields)); | |
07725fee | 279 | if (http->hostname[0] == '/') |
280 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
281 | else | |
282 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
b423cd4c | 283 | |
f7deaa1a | 284 | if (http->field_authorization) |
285 | { | |
286 | free(http->field_authorization); | |
287 | http->field_authorization = NULL; | |
288 | } | |
289 | ||
b423cd4c | 290 | http->expect = (http_status_t)0; |
ecdc0628 | 291 | } |
292 | } | |
293 | ||
294 | ||
ef416fc2 | 295 | /* |
296 | * 'httpClose()' - Close an HTTP connection... | |
297 | */ | |
298 | ||
299 | void | |
ecdc0628 | 300 | httpClose(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 301 | { |
f7deaa1a | 302 | #ifdef HAVE_GSSAPI |
303 | OM_uint32 minor_status, /* Minor status code */ | |
304 | major_status; /* Major status code */ | |
305 | #endif /* HAVE_GSSAPI */ | |
306 | ||
307 | ||
ef416fc2 | 308 | DEBUG_printf(("httpClose(http=%p)\n", http)); |
309 | ||
310 | if (!http) | |
311 | return; | |
312 | ||
313 | httpAddrFreeList(http->addrlist); | |
314 | ||
ef416fc2 | 315 | if (http->cookie) |
316 | free(http->cookie); | |
317 | ||
318 | #ifdef HAVE_SSL | |
319 | if (http->tls) | |
320 | http_shutdown_ssl(http); | |
321 | #endif /* HAVE_SSL */ | |
322 | ||
323 | #ifdef WIN32 | |
324 | closesocket(http->fd); | |
325 | #else | |
326 | close(http->fd); | |
327 | #endif /* WIN32 */ | |
328 | ||
f7deaa1a | 329 | #ifdef HAVE_GSSAPI |
330 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
331 | major_status = gss_delete_sec_context(&minor_status, &http->gssctx, | |
332 | GSS_C_NO_BUFFER); | |
333 | ||
334 | if (http->gssname != GSS_C_NO_NAME) | |
335 | major_status = gss_release_name(&minor_status, &http->gssname); | |
336 | #endif /* HAVE_GSSAPI */ | |
337 | ||
338 | httpClearFields(http); | |
339 | ||
340 | if (http->authstring && http->authstring != http->_authstring) | |
341 | free(http->authstring); | |
342 | ||
ef416fc2 | 343 | free(http); |
344 | } | |
345 | ||
346 | ||
347 | /* | |
348 | * 'httpConnect()' - Connect to a HTTP server. | |
349 | */ | |
350 | ||
351 | http_t * /* O - New HTTP connection */ | |
352 | httpConnect(const char *host, /* I - Host to connect to */ | |
353 | int port) /* I - Port number */ | |
354 | { | |
355 | http_encryption_t encryption; /* Type of encryption to use */ | |
356 | ||
357 | ||
358 | /* | |
359 | * Set the default encryption status... | |
360 | */ | |
361 | ||
362 | if (port == 443) | |
363 | encryption = HTTP_ENCRYPT_ALWAYS; | |
364 | else | |
365 | encryption = HTTP_ENCRYPT_IF_REQUESTED; | |
366 | ||
367 | return (httpConnectEncrypt(host, port, encryption)); | |
368 | } | |
369 | ||
370 | ||
371 | /* | |
372 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
373 | */ | |
374 | ||
375 | http_t * /* O - New HTTP connection */ | |
376 | httpConnectEncrypt( | |
377 | const char *host, /* I - Host to connect to */ | |
378 | int port, /* I - Port number */ | |
379 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
380 | { | |
381 | http_t *http; /* New HTTP connection */ | |
382 | http_addrlist_t *addrlist; /* Host address data */ | |
383 | char service[255]; /* Service name */ | |
384 | ||
385 | ||
386 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)\n", | |
387 | host ? host : "(null)", port, encryption)); | |
388 | ||
389 | if (!host) | |
390 | return (NULL); | |
391 | ||
392 | httpInitialize(); | |
393 | ||
394 | /* | |
395 | * Lookup the host... | |
396 | */ | |
397 | ||
398 | sprintf(service, "%d", port); | |
399 | ||
400 | if ((addrlist = httpAddrGetList(host, AF_UNSPEC, service)) == NULL) | |
401 | return (NULL); | |
402 | ||
403 | /* | |
404 | * Allocate memory for the structure... | |
405 | */ | |
406 | ||
407 | http = calloc(sizeof(http_t), 1); | |
408 | if (http == NULL) | |
409 | return (NULL); | |
410 | ||
411 | http->version = HTTP_1_1; | |
412 | http->blocking = 1; | |
413 | http->activity = time(NULL); | |
414 | http->fd = -1; | |
415 | ||
f7deaa1a | 416 | #ifdef HAVE_GSSAPI |
417 | http->gssctx = GSS_C_NO_CONTEXT; | |
418 | http->gssname = GSS_C_NO_NAME; | |
419 | #endif /* HAVE_GSSAPI */ | |
420 | ||
ef416fc2 | 421 | /* |
422 | * Set the encryption status... | |
423 | */ | |
424 | ||
425 | if (port == 443) /* Always use encryption for https */ | |
426 | http->encryption = HTTP_ENCRYPT_ALWAYS; | |
427 | else | |
428 | http->encryption = encryption; | |
429 | ||
430 | /* | |
431 | * Loop through the addresses we have until one of them connects... | |
432 | */ | |
433 | ||
434 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
435 | ||
436 | /* | |
437 | * Connect to the remote system... | |
438 | */ | |
439 | ||
440 | http->addrlist = addrlist; | |
441 | ||
442 | if (!httpReconnect(http)) | |
443 | return (http); | |
444 | ||
445 | /* | |
446 | * Could not connect to any known address - bail out! | |
447 | */ | |
448 | ||
449 | httpAddrFreeList(addrlist); | |
450 | ||
451 | free(http); | |
452 | ||
453 | return (NULL); | |
454 | } | |
455 | ||
456 | ||
457 | /* | |
458 | * 'httpDelete()' - Send a DELETE request to the server. | |
459 | */ | |
460 | ||
461 | int /* O - Status of call (0 = success) */ | |
ecdc0628 | 462 | httpDelete(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 463 | const char *uri) /* I - URI to delete */ |
464 | { | |
465 | return (http_send(http, HTTP_DELETE, uri)); | |
466 | } | |
467 | ||
468 | ||
469 | /* | |
470 | * 'httpEncryption()' - Set the required encryption on the link. | |
471 | */ | |
472 | ||
473 | int /* O - -1 on error, 0 on success */ | |
ecdc0628 | 474 | httpEncryption(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 475 | http_encryption_t e) /* I - New encryption preference */ |
476 | { | |
477 | DEBUG_printf(("httpEncryption(http=%p, e=%d)\n", http, e)); | |
478 | ||
479 | #ifdef HAVE_SSL | |
480 | if (!http) | |
481 | return (0); | |
482 | ||
483 | http->encryption = e; | |
484 | ||
485 | if ((http->encryption == HTTP_ENCRYPT_ALWAYS && !http->tls) || | |
486 | (http->encryption == HTTP_ENCRYPT_NEVER && http->tls)) | |
487 | return (httpReconnect(http)); | |
488 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
489 | return (http_upgrade(http)); | |
490 | else | |
491 | return (0); | |
492 | #else | |
493 | if (e == HTTP_ENCRYPT_ALWAYS || e == HTTP_ENCRYPT_REQUIRED) | |
494 | return (-1); | |
495 | else | |
496 | return (0); | |
497 | #endif /* HAVE_SSL */ | |
498 | } | |
499 | ||
500 | ||
ecdc0628 | 501 | /* |
502 | * 'httpError()' - Get the last error on a connection. | |
503 | */ | |
504 | ||
505 | int /* O - Error code (errno) value */ | |
506 | httpError(http_t *http) /* I - HTTP connection */ | |
507 | { | |
508 | if (http) | |
509 | return (http->error); | |
510 | else | |
511 | return (EINVAL); | |
512 | } | |
513 | ||
514 | ||
ef416fc2 | 515 | /* |
516 | * 'httpFlush()' - Flush data from a HTTP connection. | |
517 | */ | |
518 | ||
519 | void | |
ecdc0628 | 520 | httpFlush(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 521 | { |
522 | char buffer[8192]; /* Junk buffer */ | |
fa73b229 | 523 | int blocking; /* To block or not to block */ |
ef416fc2 | 524 | |
525 | ||
526 | DEBUG_printf(("httpFlush(http=%p), state=%d\n", http, http->state)); | |
527 | ||
fa73b229 | 528 | /* |
529 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
530 | */ | |
531 | ||
532 | blocking = http->blocking; | |
533 | http->blocking = 0; | |
534 | ||
535 | /* | |
536 | * Read any data we can... | |
537 | */ | |
538 | ||
a4d04587 | 539 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 540 | |
541 | /* | |
542 | * Restore blocking and reset the connection if we didn't get all of | |
543 | * the remaining data... | |
544 | */ | |
545 | ||
546 | http->blocking = blocking; | |
547 | ||
548 | if (http->state != HTTP_WAITING && http->fd >= 0) | |
549 | { | |
550 | /* | |
551 | * Didn't get the data back, so close the current connection. | |
552 | */ | |
553 | ||
554 | http->state = HTTP_WAITING; | |
555 | ||
556 | #ifdef HAVE_SSL | |
557 | if (http->tls) | |
558 | http_shutdown_ssl(http); | |
559 | #endif /* HAVE_SSL */ | |
560 | ||
561 | #ifdef WIN32 | |
562 | closesocket(http->fd); | |
563 | #else | |
564 | close(http->fd); | |
565 | #endif /* WIN32 */ | |
566 | ||
567 | http->fd = -1; | |
568 | } | |
ef416fc2 | 569 | } |
570 | ||
571 | ||
572 | /* | |
573 | * 'httpFlushWrite()' - Flush data in write buffer. | |
574 | * | |
575 | * @since CUPS 1.2@ | |
576 | */ | |
577 | ||
578 | int /* O - Bytes written or -1 on error */ | |
ecdc0628 | 579 | httpFlushWrite(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 580 | { |
581 | int bytes; /* Bytes written */ | |
582 | ||
583 | ||
584 | DEBUG_printf(("httpFlushWrite(http=%p)\n", http)); | |
585 | ||
586 | if (!http || !http->wused) | |
587 | return (0); | |
588 | ||
589 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
590 | bytes = http_write_chunk(http, http->wbuffer, http->wused); | |
591 | else | |
592 | bytes = http_write(http, http->wbuffer, http->wused); | |
593 | ||
594 | http->wused = 0; | |
595 | ||
596 | return (bytes); | |
597 | } | |
598 | ||
599 | ||
600 | /* | |
601 | * 'httpGet()' - Send a GET request to the server. | |
602 | */ | |
603 | ||
604 | int /* O - Status of call (0 = success) */ | |
ecdc0628 | 605 | httpGet(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 606 | const char *uri) /* I - URI to get */ |
607 | { | |
608 | return (http_send(http, HTTP_GET, uri)); | |
609 | } | |
610 | ||
611 | ||
ecdc0628 | 612 | /* |
613 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
614 | * | |
615 | * @since CUPS 1.2@ | |
616 | */ | |
617 | ||
618 | int /* O - 1 if blocking, 0 if non-blocking */ | |
619 | httpGetBlocking(http_t *http) /* I - HTTP connection */ | |
620 | { | |
621 | return (http ? http->blocking : 0); | |
622 | } | |
623 | ||
624 | ||
625 | /* | |
626 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 627 | * |
628 | * @since CUPS 1.1.19@ | |
ecdc0628 | 629 | */ |
630 | ||
631 | const char * /* O - Cookie data or NULL */ | |
632 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
633 | { | |
634 | return (http ? http->cookie : NULL); | |
635 | } | |
636 | ||
637 | ||
638 | /* | |
639 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
640 | * | |
641 | * @since CUPS 1.2@ | |
642 | */ | |
643 | ||
644 | int /* O - File descriptor or -1 if none */ | |
645 | httpGetFd(http_t *http) /* I - HTTP connection */ | |
646 | { | |
647 | return (http ? http->fd : -1); | |
648 | } | |
649 | ||
650 | ||
651 | /* | |
652 | * 'httpGetField()' - Get a field value from a request/response. | |
653 | */ | |
654 | ||
655 | const char * /* O - Field value */ | |
656 | httpGetField(http_t *http, /* I - HTTP connection */ | |
657 | http_field_t field) /* I - Field to get */ | |
658 | { | |
659 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
660 | return (NULL); | |
f7deaa1a | 661 | else if (field == HTTP_FIELD_AUTHORIZATION && |
662 | http->field_authorization) | |
663 | { | |
664 | /* | |
665 | * Special case for WWW-Authenticate: as its contents can be | |
666 | * longer than HTTP_MAX_VALUE... | |
667 | */ | |
668 | ||
669 | return (http->field_authorization); | |
670 | } | |
ecdc0628 | 671 | else |
672 | return (http->fields[field]); | |
673 | } | |
674 | ||
675 | ||
676 | /* | |
677 | * 'httpGetLength()' - Get the amount of data remaining from the | |
678 | * content-length or transfer-encoding fields. | |
679 | * | |
680 | * This function is deprecated and will not return lengths larger than | |
681 | * 2^31 - 1; use httpGetLength2() instead. | |
682 | * | |
683 | * @deprecated@ | |
684 | */ | |
685 | ||
686 | int /* O - Content length */ | |
687 | httpGetLength(http_t *http) /* I - HTTP connection */ | |
688 | { | |
689 | /* | |
690 | * Get the read content length and return the 32-bit value. | |
691 | */ | |
692 | ||
693 | if (http) | |
694 | { | |
695 | httpGetLength2(http); | |
696 | ||
697 | return (http->_data_remaining); | |
698 | } | |
699 | else | |
700 | return (-1); | |
701 | } | |
702 | ||
703 | ||
704 | /* | |
705 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
706 | * content-length or transfer-encoding fields. | |
707 | * | |
708 | * This function returns the complete content length, even for | |
709 | * content larger than 2^31 - 1. | |
710 | * | |
711 | * @since CUPS 1.2@ | |
712 | */ | |
713 | ||
714 | off_t /* O - Content length */ | |
715 | httpGetLength2(http_t *http) /* I - HTTP connection */ | |
716 | { | |
717 | DEBUG_printf(("httpGetLength2(http=%p), state=%d\n", http, http->state)); | |
718 | ||
719 | if (!http) | |
720 | return (-1); | |
721 | ||
722 | if (!strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) | |
723 | { | |
724 | DEBUG_puts("httpGetLength2: chunked request!"); | |
725 | ||
726 | http->data_encoding = HTTP_ENCODE_CHUNKED; | |
727 | http->data_remaining = 0; | |
728 | } | |
729 | else | |
730 | { | |
731 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
732 | ||
733 | /* | |
734 | * The following is a hack for HTTP servers that don't send a | |
735 | * content-length or transfer-encoding field... | |
736 | * | |
737 | * If there is no content-length then the connection must close | |
738 | * after the transfer is complete... | |
739 | */ | |
740 | ||
b86bc4cf | 741 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
742 | { | |
743 | /* | |
744 | * Default content length is 0 for errors and 2^31-1 for other | |
745 | * successful requests... | |
746 | */ | |
747 | ||
748 | if (http->status >= HTTP_MULTIPLE_CHOICES) | |
749 | http->data_remaining = 0; | |
750 | else | |
751 | http->data_remaining = 2147483647; | |
752 | } | |
ecdc0628 | 753 | else |
754 | http->data_remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], | |
755 | NULL, 10); | |
756 | ||
757 | DEBUG_printf(("httpGetLength2: content_length=" CUPS_LLFMT "\n", | |
758 | CUPS_LLCAST http->data_remaining)); | |
759 | } | |
760 | ||
761 | if (http->data_remaining <= INT_MAX) | |
762 | http->_data_remaining = (int)http->data_remaining; | |
763 | else | |
764 | http->_data_remaining = INT_MAX; | |
765 | ||
766 | return (http->data_remaining); | |
767 | } | |
768 | ||
769 | ||
770 | /* | |
771 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
772 | * | |
773 | * @since CUPS 1.2@ | |
774 | */ | |
775 | ||
776 | http_status_t /* O - HTTP status */ | |
777 | httpGetStatus(http_t *http) /* I - HTTP connection */ | |
778 | { | |
779 | return (http ? http->status : HTTP_ERROR); | |
780 | } | |
781 | ||
782 | ||
ef416fc2 | 783 | /* |
784 | * 'httpGetSubField()' - Get a sub-field value. | |
785 | * | |
786 | * @deprecated@ | |
787 | */ | |
788 | ||
789 | char * /* O - Value or NULL */ | |
ecdc0628 | 790 | httpGetSubField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 791 | http_field_t field, /* I - Field index */ |
792 | const char *name, /* I - Name of sub-field */ | |
793 | char *value) /* O - Value string */ | |
794 | { | |
795 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
796 | } | |
797 | ||
798 | ||
799 | /* | |
800 | * 'httpGetSubField2()' - Get a sub-field value. | |
801 | * | |
802 | * @since CUPS 1.2@ | |
803 | */ | |
804 | ||
805 | char * /* O - Value or NULL */ | |
ecdc0628 | 806 | httpGetSubField2(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 807 | http_field_t field, /* I - Field index */ |
808 | const char *name, /* I - Name of sub-field */ | |
809 | char *value, /* O - Value string */ | |
810 | int valuelen) /* I - Size of value buffer */ | |
811 | { | |
812 | const char *fptr; /* Pointer into field */ | |
813 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
814 | *ptr, /* Pointer into string buffer */ | |
815 | *end; /* End of value buffer */ | |
816 | ||
817 | DEBUG_printf(("httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, valuelen=%d)\n", | |
818 | http, field, name, value, valuelen)); | |
819 | ||
820 | if (!http || !name || !value || valuelen < 2 || | |
ecdc0628 | 821 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) |
ef416fc2 | 822 | return (NULL); |
823 | ||
824 | end = value + valuelen - 1; | |
825 | ||
826 | for (fptr = http->fields[field]; *fptr;) | |
827 | { | |
828 | /* | |
829 | * Skip leading whitespace... | |
830 | */ | |
831 | ||
832 | while (isspace(*fptr & 255)) | |
833 | fptr ++; | |
834 | ||
835 | if (*fptr == ',') | |
836 | { | |
837 | fptr ++; | |
838 | continue; | |
839 | } | |
840 | ||
841 | /* | |
842 | * Get the sub-field name... | |
843 | */ | |
844 | ||
845 | for (ptr = temp; | |
846 | *fptr && *fptr != '=' && !isspace(*fptr & 255) && | |
847 | ptr < (temp + sizeof(temp) - 1); | |
848 | *ptr++ = *fptr++); | |
849 | ||
850 | *ptr = '\0'; | |
851 | ||
852 | DEBUG_printf(("httpGetSubField: name=\"%s\"\n", temp)); | |
853 | ||
854 | /* | |
855 | * Skip trailing chars up to the '='... | |
856 | */ | |
857 | ||
858 | while (isspace(*fptr & 255)) | |
859 | fptr ++; | |
860 | ||
861 | if (!*fptr) | |
862 | break; | |
863 | ||
864 | if (*fptr != '=') | |
865 | continue; | |
866 | ||
867 | /* | |
868 | * Skip = and leading whitespace... | |
869 | */ | |
870 | ||
871 | fptr ++; | |
872 | ||
873 | while (isspace(*fptr & 255)) | |
874 | fptr ++; | |
875 | ||
876 | if (*fptr == '\"') | |
877 | { | |
878 | /* | |
879 | * Read quoted string... | |
880 | */ | |
881 | ||
882 | for (ptr = value, fptr ++; | |
883 | *fptr && *fptr != '\"' && ptr < end; | |
884 | *ptr++ = *fptr++); | |
885 | ||
886 | *ptr = '\0'; | |
887 | ||
888 | while (*fptr && *fptr != '\"') | |
889 | fptr ++; | |
890 | ||
891 | if (*fptr) | |
892 | fptr ++; | |
893 | } | |
894 | else | |
895 | { | |
896 | /* | |
897 | * Read unquoted string... | |
898 | */ | |
899 | ||
900 | for (ptr = value; | |
901 | *fptr && !isspace(*fptr & 255) && *fptr != ',' && ptr < end; | |
902 | *ptr++ = *fptr++); | |
903 | ||
904 | *ptr = '\0'; | |
905 | ||
906 | while (*fptr && !isspace(*fptr & 255) && *fptr != ',') | |
907 | fptr ++; | |
908 | } | |
909 | ||
910 | DEBUG_printf(("httpGetSubField: value=\"%s\"\n", value)); | |
911 | ||
912 | /* | |
913 | * See if this is the one... | |
914 | */ | |
915 | ||
916 | if (!strcmp(name, temp)) | |
917 | return (value); | |
918 | } | |
919 | ||
920 | value[0] = '\0'; | |
921 | ||
922 | return (NULL); | |
923 | } | |
924 | ||
925 | ||
ef416fc2 | 926 | /* |
927 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
928 | */ | |
929 | ||
930 | char * /* O - Line or NULL */ | |
931 | httpGets(char *line, /* I - Line to read into */ | |
932 | int length, /* I - Max length of buffer */ | |
ecdc0628 | 933 | http_t *http) /* I - HTTP connection */ |
ef416fc2 | 934 | { |
935 | char *lineptr, /* Pointer into line */ | |
936 | *lineend, /* End of line */ | |
937 | *bufptr, /* Pointer into input buffer */ | |
938 | *bufend; /* Pointer to end of buffer */ | |
939 | int bytes, /* Number of bytes read */ | |
940 | eol; /* End-of-line? */ | |
941 | ||
942 | ||
943 | DEBUG_printf(("httpGets(line=%p, length=%d, http=%p)\n", line, length, http)); | |
944 | ||
945 | if (http == NULL || line == NULL) | |
946 | return (NULL); | |
947 | ||
948 | /* | |
949 | * Read a line from the buffer... | |
950 | */ | |
951 | ||
952 | lineptr = line; | |
953 | lineend = line + length - 1; | |
954 | eol = 0; | |
955 | ||
956 | while (lineptr < lineend) | |
957 | { | |
958 | /* | |
959 | * Pre-load the buffer as needed... | |
960 | */ | |
961 | ||
962 | #ifdef WIN32 | |
963 | WSASetLastError(0); | |
964 | #else | |
965 | errno = 0; | |
966 | #endif /* WIN32 */ | |
967 | ||
968 | while (http->used == 0) | |
969 | { | |
970 | /* | |
971 | * No newline; see if there is more data to be read... | |
972 | */ | |
973 | ||
411affcf | 974 | if (!http->blocking && !http_wait(http, 10000, 1)) |
89d46774 | 975 | { |
976 | DEBUG_puts("httpGets: Timed out!"); | |
b86bc4cf | 977 | #ifdef WIN32 |
978 | http->error = WSAETIMEDOUT; | |
979 | #else | |
89d46774 | 980 | http->error = ETIMEDOUT; |
b86bc4cf | 981 | #endif /* WIN32 */ |
ef416fc2 | 982 | return (NULL); |
89d46774 | 983 | } |
ef416fc2 | 984 | |
985 | #ifdef HAVE_SSL | |
986 | if (http->tls) | |
987 | bytes = http_read_ssl(http, http->buffer + http->used, | |
988 | HTTP_MAX_BUFFER - http->used); | |
989 | else | |
990 | #endif /* HAVE_SSL */ | |
991 | bytes = recv(http->fd, http->buffer + http->used, | |
992 | HTTP_MAX_BUFFER - http->used, 0); | |
993 | ||
994 | DEBUG_printf(("httpGets: read %d bytes...\n", bytes)); | |
995 | ||
996 | if (bytes < 0) | |
997 | { | |
998 | /* | |
999 | * Nope, can't get a line this time... | |
1000 | */ | |
1001 | ||
1002 | #ifdef WIN32 | |
1003 | if (WSAGetLastError() != http->error) | |
1004 | { | |
1005 | http->error = WSAGetLastError(); | |
1006 | continue; | |
1007 | } | |
1008 | ||
1009 | DEBUG_printf(("httpGets: recv() error %d!\n", WSAGetLastError())); | |
1010 | #else | |
1011 | DEBUG_printf(("httpGets: recv() error %d!\n", errno)); | |
1012 | ||
1013 | if (errno == EINTR) | |
1014 | continue; | |
1015 | else if (errno != http->error) | |
1016 | { | |
1017 | http->error = errno; | |
1018 | continue; | |
1019 | } | |
1020 | #endif /* WIN32 */ | |
1021 | ||
1022 | return (NULL); | |
1023 | } | |
1024 | else if (bytes == 0) | |
1025 | { | |
1026 | http->error = EPIPE; | |
1027 | ||
1028 | return (NULL); | |
1029 | } | |
1030 | ||
1031 | /* | |
1032 | * Yup, update the amount used... | |
1033 | */ | |
1034 | ||
1035 | http->used += bytes; | |
1036 | } | |
1037 | ||
1038 | /* | |
1039 | * Now copy as much of the current line as possible... | |
1040 | */ | |
1041 | ||
1042 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1043 | lineptr < lineend && bufptr < bufend;) | |
1044 | { | |
1045 | if (*bufptr == 0x0a) | |
1046 | { | |
1047 | eol = 1; | |
1048 | bufptr ++; | |
1049 | break; | |
1050 | } | |
1051 | else if (*bufptr == 0x0d) | |
1052 | bufptr ++; | |
1053 | else | |
1054 | *lineptr++ = *bufptr++; | |
1055 | } | |
1056 | ||
b86bc4cf | 1057 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1058 | if (http->used > 0) |
1059 | memmove(http->buffer, bufptr, http->used); | |
1060 | ||
1061 | if (eol) | |
1062 | { | |
1063 | /* | |
1064 | * End of line... | |
1065 | */ | |
1066 | ||
1067 | http->activity = time(NULL); | |
1068 | ||
1069 | *lineptr = '\0'; | |
1070 | ||
1071 | DEBUG_printf(("httpGets: Returning \"%s\"\n", line)); | |
1072 | ||
1073 | return (line); | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | DEBUG_puts("httpGets: No new line available!"); | |
1078 | ||
1079 | return (NULL); | |
1080 | } | |
1081 | ||
1082 | ||
1083 | /* | |
1084 | * 'httpHead()' - Send a HEAD request to the server. | |
1085 | */ | |
1086 | ||
1087 | int /* O - Status of call (0 = success) */ | |
ecdc0628 | 1088 | httpHead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1089 | const char *uri) /* I - URI for head */ |
1090 | { | |
1091 | return (http_send(http, HTTP_HEAD, uri)); | |
1092 | } | |
1093 | ||
1094 | ||
1095 | /* | |
1096 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1097 | * default HTTP proxy (if any). | |
1098 | */ | |
1099 | ||
1100 | void | |
1101 | httpInitialize(void) | |
1102 | { | |
1103 | #ifdef HAVE_LIBSSL | |
1104 | # ifndef WIN32 | |
1105 | struct timeval curtime; /* Current time in microseconds */ | |
1106 | # endif /* !WIN32 */ | |
1107 | int i; /* Looping var */ | |
1108 | unsigned char data[1024]; /* Seed data */ | |
1109 | #endif /* HAVE_LIBSSL */ | |
1110 | ||
1111 | #ifdef WIN32 | |
1112 | WSADATA winsockdata; /* WinSock data */ | |
1113 | static int initialized = 0; /* Has WinSock been initialized? */ | |
1114 | ||
1115 | ||
1116 | if (!initialized) | |
1117 | WSAStartup(MAKEWORD(1,1), &winsockdata); | |
fa73b229 | 1118 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1119 | /* |
1120 | * Ignore SIGPIPE signals... | |
1121 | */ | |
1122 | ||
fa73b229 | 1123 | # ifdef HAVE_SIGSET |
1124 | sigset(SIGPIPE, SIG_IGN); | |
1125 | # elif defined(HAVE_SIGACTION) | |
1126 | struct sigaction action; /* POSIX sigaction data */ | |
1127 | ||
1128 | ||
ef416fc2 | 1129 | memset(&action, 0, sizeof(action)); |
1130 | action.sa_handler = SIG_IGN; | |
1131 | sigaction(SIGPIPE, &action, NULL); | |
fa73b229 | 1132 | # else |
ef416fc2 | 1133 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1134 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1135 | #endif /* WIN32 */ |
1136 | ||
1137 | #ifdef HAVE_GNUTLS | |
1138 | gnutls_global_init(); | |
1139 | #endif /* HAVE_GNUTLS */ | |
1140 | ||
1141 | #ifdef HAVE_LIBSSL | |
1142 | SSL_load_error_strings(); | |
1143 | SSL_library_init(); | |
1144 | ||
1145 | /* | |
1146 | * Using the current time is a dubious random seed, but on some systems | |
1147 | * it is the best we can do (on others, this seed isn't even used...) | |
1148 | */ | |
1149 | ||
1150 | #ifdef WIN32 | |
1151 | #else | |
1152 | gettimeofday(&curtime, NULL); | |
1153 | srand(curtime.tv_sec + curtime.tv_usec); | |
1154 | #endif /* WIN32 */ | |
1155 | ||
1156 | for (i = 0; i < sizeof(data); i ++) | |
1157 | data[i] = rand(); /* Yes, this is a poor source of random data... */ | |
1158 | ||
1159 | RAND_seed(&data, sizeof(data)); | |
1160 | #endif /* HAVE_LIBSSL */ | |
1161 | } | |
1162 | ||
1163 | ||
1164 | /* | |
1165 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1166 | */ | |
1167 | ||
1168 | int /* O - Status of call (0 = success) */ | |
ecdc0628 | 1169 | httpOptions(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1170 | const char *uri) /* I - URI for options */ |
1171 | { | |
1172 | return (http_send(http, HTTP_OPTIONS, uri)); | |
1173 | } | |
1174 | ||
1175 | ||
1176 | /* | |
1177 | * 'httpPost()' - Send a POST request to the server. | |
1178 | */ | |
1179 | ||
1180 | int /* O - Status of call (0 = success) */ | |
ecdc0628 | 1181 | httpPost(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1182 | const char *uri) /* I - URI for post */ |
1183 | { | |
1184 | return (http_send(http, HTTP_POST, uri)); | |
1185 | } | |
1186 | ||
1187 | ||
1188 | /* | |
1189 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1190 | * |
1191 | * @private@ | |
ef416fc2 | 1192 | */ |
1193 | ||
1194 | int /* O - Number of bytes written */ | |
ecdc0628 | 1195 | httpPrintf(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1196 | const char *format, /* I - printf-style format string */ |
1197 | ...) /* I - Additional args as needed */ | |
1198 | { | |
1199 | int bytes; /* Number of bytes to write */ | |
1200 | char buf[16384]; /* Buffer for formatted string */ | |
1201 | va_list ap; /* Variable argument pointer */ | |
1202 | ||
1203 | ||
1204 | DEBUG_printf(("httpPrintf(http=%p, format=\"%s\", ...)\n", http, format)); | |
1205 | ||
1206 | va_start(ap, format); | |
1207 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1208 | va_end(ap); | |
1209 | ||
1210 | DEBUG_printf(("httpPrintf: %s", buf)); | |
1211 | ||
d09495fa | 1212 | if (http->data_encoding == HTTP_ENCODE_FIELDS) |
1213 | return (httpWrite2(http, buf, bytes)); | |
1214 | else | |
ef416fc2 | 1215 | { |
d09495fa | 1216 | if (http->wused) |
1217 | { | |
1218 | DEBUG_puts(" flushing existing data..."); | |
ef416fc2 | 1219 | |
d09495fa | 1220 | if (httpFlushWrite(http) < 0) |
1221 | return (-1); | |
1222 | } | |
ef416fc2 | 1223 | |
d09495fa | 1224 | return (http_write(http, buf, bytes)); |
1225 | } | |
ef416fc2 | 1226 | } |
1227 | ||
1228 | ||
1229 | /* | |
1230 | * 'httpPut()' - Send a PUT request to the server. | |
1231 | */ | |
1232 | ||
1233 | int /* O - Status of call (0 = success) */ | |
ecdc0628 | 1234 | httpPut(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1235 | const char *uri) /* I - URI to put */ |
1236 | { | |
1237 | return (http_send(http, HTTP_PUT, uri)); | |
1238 | } | |
1239 | ||
1240 | ||
1241 | /* | |
1242 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1243 | * |
1244 | * This function is deprecated. Use the httpRead2() function which can | |
1245 | * read more than 2GB of data. | |
1246 | * | |
1247 | * @deprecated@ | |
ef416fc2 | 1248 | */ |
1249 | ||
1250 | int /* O - Number of bytes read */ | |
ecdc0628 | 1251 | httpRead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1252 | char *buffer, /* I - Buffer for data */ |
1253 | int length) /* I - Maximum number of bytes */ | |
1254 | { | |
a4d04587 | 1255 | return ((int)httpRead2(http, buffer, length)); |
1256 | } | |
1257 | ||
1258 | ||
1259 | /* | |
1260 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1261 | * |
1262 | * @since CUPS 1.2@ | |
a4d04587 | 1263 | */ |
1264 | ||
1265 | ssize_t /* O - Number of bytes read */ | |
ecdc0628 | 1266 | httpRead2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 1267 | char *buffer, /* I - Buffer for data */ |
1268 | size_t length) /* I - Maximum number of bytes */ | |
1269 | { | |
1270 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1271 | char len[32]; /* Length string */ |
1272 | ||
1273 | ||
1274 | DEBUG_printf(("httpRead(http=%p, buffer=%p, length=%d)\n", | |
1275 | http, buffer, length)); | |
1276 | ||
1277 | if (http == NULL || buffer == NULL) | |
1278 | return (-1); | |
1279 | ||
1280 | http->activity = time(NULL); | |
1281 | ||
1282 | if (length <= 0) | |
1283 | return (0); | |
1284 | ||
1285 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1286 | http->data_remaining <= 0) | |
1287 | { | |
a4d04587 | 1288 | DEBUG_puts("httpRead2: Getting chunk length..."); |
ef416fc2 | 1289 | |
1290 | if (httpGets(len, sizeof(len), http) == NULL) | |
1291 | { | |
a4d04587 | 1292 | DEBUG_puts("httpRead2: Could not get length!"); |
ef416fc2 | 1293 | return (0); |
1294 | } | |
1295 | ||
1296 | http->data_remaining = strtoll(len, NULL, 16); | |
1297 | if (http->data_remaining < 0) | |
1298 | { | |
a4d04587 | 1299 | DEBUG_puts("httpRead2: Negative chunk length!"); |
ef416fc2 | 1300 | return (0); |
1301 | } | |
1302 | } | |
1303 | ||
a4d04587 | 1304 | DEBUG_printf(("httpRead2: data_remaining=" CUPS_LLFMT "\n", |
ef416fc2 | 1305 | CUPS_LLCAST http->data_remaining)); |
1306 | ||
1307 | if (http->data_remaining <= 0) | |
1308 | { | |
1309 | /* | |
1310 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1311 | * data, go idle... | |
1312 | */ | |
1313 | ||
1314 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1315 | httpGets(len, sizeof(len), http); | |
1316 | ||
1317 | if (http->state == HTTP_POST_RECV) | |
1318 | http->state ++; | |
1319 | else | |
1320 | http->state = HTTP_WAITING; | |
1321 | ||
1322 | /* | |
1323 | * Prevent future reads for this request... | |
1324 | */ | |
1325 | ||
1326 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1327 | ||
1328 | return (0); | |
1329 | } | |
b86bc4cf | 1330 | else if (length > (size_t)http->data_remaining) |
1331 | length = (size_t)http->data_remaining; | |
ef416fc2 | 1332 | |
1333 | if (http->used == 0 && length <= 256) | |
1334 | { | |
1335 | /* | |
1336 | * Buffer small reads for better performance... | |
1337 | */ | |
1338 | ||
ed486911 | 1339 | if (!http->blocking && !httpWait(http, 10000)) |
ef416fc2 | 1340 | return (0); |
1341 | ||
1342 | if (http->data_remaining > sizeof(http->buffer)) | |
1343 | bytes = sizeof(http->buffer); | |
1344 | else | |
1345 | bytes = http->data_remaining; | |
1346 | ||
1347 | #ifdef HAVE_SSL | |
1348 | if (http->tls) | |
1349 | bytes = http_read_ssl(http, http->buffer, bytes); | |
1350 | else | |
1351 | #endif /* HAVE_SSL */ | |
1352 | { | |
a4d04587 | 1353 | DEBUG_printf(("httpRead2: reading %d bytes from socket into buffer...\n", |
ef416fc2 | 1354 | bytes)); |
1355 | ||
1356 | bytes = recv(http->fd, http->buffer, bytes, 0); | |
1357 | ||
a4d04587 | 1358 | DEBUG_printf(("httpRead2: read %d bytes from socket into buffer...\n", |
ef416fc2 | 1359 | bytes)); |
1360 | } | |
1361 | ||
1362 | if (bytes > 0) | |
1363 | http->used = bytes; | |
1364 | else if (bytes < 0) | |
1365 | { | |
1366 | #ifdef WIN32 | |
1367 | http->error = WSAGetLastError(); | |
1368 | return (-1); | |
1369 | #else | |
1370 | if (errno != EINTR) | |
1371 | { | |
1372 | http->error = errno; | |
1373 | return (-1); | |
1374 | } | |
1375 | #endif /* WIN32 */ | |
1376 | } | |
1377 | else | |
1378 | { | |
1379 | http->error = EPIPE; | |
1380 | return (0); | |
1381 | } | |
1382 | } | |
1383 | ||
1384 | if (http->used > 0) | |
1385 | { | |
b86bc4cf | 1386 | if (length > (size_t)http->used) |
1387 | length = (size_t)http->used; | |
ef416fc2 | 1388 | |
b86bc4cf | 1389 | bytes = (ssize_t)length; |
ef416fc2 | 1390 | |
a4d04587 | 1391 | DEBUG_printf(("httpRead2: grabbing %d bytes from input buffer...\n", bytes)); |
ef416fc2 | 1392 | |
1393 | memcpy(buffer, http->buffer, length); | |
b86bc4cf | 1394 | http->used -= (int)length; |
ef416fc2 | 1395 | |
1396 | if (http->used > 0) | |
1397 | memmove(http->buffer, http->buffer + length, http->used); | |
1398 | } | |
1399 | #ifdef HAVE_SSL | |
1400 | else if (http->tls) | |
1401 | { | |
ed486911 | 1402 | if (!http->blocking && !httpWait(http, 10000)) |
ef416fc2 | 1403 | return (0); |
1404 | ||
b86bc4cf | 1405 | bytes = (ssize_t)http_read_ssl(http, buffer, (int)length); |
ef416fc2 | 1406 | } |
1407 | #endif /* HAVE_SSL */ | |
1408 | else | |
1409 | { | |
ed486911 | 1410 | if (!http->blocking && !httpWait(http, 10000)) |
ef416fc2 | 1411 | return (0); |
1412 | ||
a4d04587 | 1413 | DEBUG_printf(("httpRead2: reading %d bytes from socket...\n", length)); |
ef416fc2 | 1414 | |
b86bc4cf | 1415 | #ifdef WIN32 |
1416 | bytes = (ssize_t)recv(http->fd, buffer, (int)length, 0); | |
1417 | #else | |
ef416fc2 | 1418 | while ((bytes = recv(http->fd, buffer, length, 0)) < 0) |
1419 | if (errno != EINTR) | |
1420 | break; | |
b86bc4cf | 1421 | #endif /* WIN32 */ |
ef416fc2 | 1422 | |
a4d04587 | 1423 | DEBUG_printf(("httpRead2: read %d bytes from socket...\n", bytes)); |
ef416fc2 | 1424 | } |
1425 | ||
1426 | if (bytes > 0) | |
1427 | { | |
1428 | http->data_remaining -= bytes; | |
1429 | ||
1430 | if (http->data_remaining <= INT_MAX) | |
1431 | http->_data_remaining = (int)http->data_remaining; | |
1432 | else | |
1433 | http->_data_remaining = INT_MAX; | |
1434 | } | |
1435 | else if (bytes < 0) | |
1436 | { | |
1437 | #ifdef WIN32 | |
1438 | http->error = WSAGetLastError(); | |
1439 | #else | |
1440 | if (errno == EINTR) | |
1441 | bytes = 0; | |
1442 | else | |
1443 | http->error = errno; | |
1444 | #endif /* WIN32 */ | |
1445 | } | |
1446 | else | |
1447 | { | |
1448 | http->error = EPIPE; | |
1449 | return (0); | |
1450 | } | |
1451 | ||
1452 | if (http->data_remaining == 0) | |
1453 | { | |
1454 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1455 | httpGets(len, sizeof(len), http); | |
1456 | ||
1457 | if (http->data_encoding != HTTP_ENCODE_CHUNKED) | |
1458 | { | |
1459 | if (http->state == HTTP_POST_RECV) | |
1460 | http->state ++; | |
1461 | else | |
1462 | http->state = HTTP_WAITING; | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | #ifdef DEBUG | |
1467 | { | |
1468 | int i, j, ch; | |
a4d04587 | 1469 | printf("httpRead2: Read %d bytes:\n", bytes); |
ef416fc2 | 1470 | for (i = 0; i < bytes; i += 16) |
1471 | { | |
1472 | printf(" "); | |
1473 | ||
1474 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
1475 | printf(" %02X", buffer[i + j] & 255); | |
1476 | ||
1477 | while (j < 16) | |
1478 | { | |
1479 | printf(" "); | |
1480 | j ++; | |
1481 | } | |
1482 | ||
1483 | printf(" "); | |
1484 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
1485 | { | |
1486 | ch = buffer[i + j] & 255; | |
1487 | ||
fa73b229 | 1488 | if (ch < ' ' || ch >= 127) |
ef416fc2 | 1489 | ch = '.'; |
1490 | ||
1491 | putchar(ch); | |
1492 | } | |
1493 | putchar('\n'); | |
1494 | } | |
1495 | } | |
1496 | #endif /* DEBUG */ | |
1497 | ||
1498 | return (bytes); | |
1499 | } | |
1500 | ||
1501 | ||
1502 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
1503 | /* | |
411affcf | 1504 | * '_httpReadCDSA()' - Read function for the CDSA library. |
ef416fc2 | 1505 | */ |
1506 | ||
1507 | OSStatus /* O - -1 on error, 0 on success */ | |
1508 | _httpReadCDSA( | |
1509 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1510 | void *data, /* I - Data buffer */ | |
1511 | size_t *dataLength) /* IO - Number of bytes */ | |
1512 | { | |
411affcf | 1513 | OSStatus result; /* Return value */ |
1514 | ssize_t bytes; /* Number of bytes read */ | |
1515 | http_t *http; /* HTTP connection */ | |
1516 | ||
1517 | ||
1518 | http = (http_t *)connection; | |
e53920b9 | 1519 | |
411affcf | 1520 | if (!http->blocking) |
1521 | { | |
1522 | /* | |
1523 | * Make sure we have data before we read... | |
1524 | */ | |
e53920b9 | 1525 | |
411affcf | 1526 | if (!http_wait(http, 10000, 0)) |
1527 | { | |
1528 | http->error = ETIMEDOUT; | |
1529 | return (-1); | |
1530 | } | |
1531 | } | |
ef416fc2 | 1532 | |
b423cd4c | 1533 | do |
411affcf | 1534 | { |
1535 | bytes = recv(http->fd, data, *dataLength, 0); | |
1536 | } | |
b423cd4c | 1537 | while (bytes == -1 && errno == EINTR); |
fa73b229 | 1538 | |
b423cd4c | 1539 | if (bytes == *dataLength) |
411affcf | 1540 | { |
b423cd4c | 1541 | result = 0; |
411affcf | 1542 | } |
b423cd4c | 1543 | else if (bytes > 0) |
1544 | { | |
1545 | *dataLength = bytes; | |
1546 | result = errSSLWouldBlock; | |
1547 | } | |
1548 | else | |
1549 | { | |
1550 | *dataLength = 0; | |
fa73b229 | 1551 | |
1552 | if (bytes == 0) | |
ed486911 | 1553 | result = errSSLClosedGraceful; |
b423cd4c | 1554 | else if (errno == EAGAIN) |
1555 | result = errSSLWouldBlock; | |
b423cd4c | 1556 | else |
ed486911 | 1557 | result = errSSLClosedAbort; |
ef416fc2 | 1558 | } |
b423cd4c | 1559 | |
411affcf | 1560 | return (result); |
ef416fc2 | 1561 | } |
1562 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
1563 | ||
1564 | ||
411affcf | 1565 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
1566 | /* | |
1567 | * '_httpReadGNUTLS()' - Read function for the GNU TLS library. | |
1568 | */ | |
1569 | ||
1570 | ssize_t /* O - Number of bytes read or -1 on error */ | |
1571 | _httpReadGNUTLS( | |
1572 | gnutls_transport_ptr ptr, /* I - HTTP connection */ | |
1573 | void *data, /* I - Buffer */ | |
1574 | size_t length) /* I - Number of bytes to read */ | |
1575 | { | |
1576 | http_t *http; /* HTTP connection */ | |
1577 | ||
1578 | ||
1579 | http = (http_t *)ptr; | |
1580 | ||
1581 | if (!http->blocking) | |
1582 | { | |
1583 | /* | |
1584 | * Make sure we have data before we read... | |
1585 | */ | |
1586 | ||
1587 | if (!http_wait(http, 10000, 0)) | |
1588 | { | |
1589 | http->error = ETIMEDOUT; | |
1590 | return (-1); | |
1591 | } | |
1592 | } | |
1593 | ||
1594 | return (recv(http->fd, data, length, 0)); | |
1595 | } | |
1596 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
1597 | ||
1598 | ||
ef416fc2 | 1599 | /* |
ecdc0628 | 1600 | * 'httpReconnect()' - Reconnect to a HTTP server. |
ef416fc2 | 1601 | */ |
1602 | ||
1603 | int /* O - 0 on success, non-zero on failure */ | |
ecdc0628 | 1604 | httpReconnect(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1605 | { |
1606 | http_addrlist_t *addr; /* Connected address */ | |
1607 | ||
1608 | ||
1609 | DEBUG_printf(("httpReconnect(http=%p)\n", http)); | |
1610 | ||
1611 | if (!http) | |
1612 | return (-1); | |
1613 | ||
1614 | #ifdef HAVE_SSL | |
1615 | if (http->tls) | |
1616 | http_shutdown_ssl(http); | |
1617 | #endif /* HAVE_SSL */ | |
1618 | ||
1619 | /* | |
1620 | * Close any previously open socket... | |
1621 | */ | |
1622 | ||
1623 | if (http->fd >= 0) | |
bd7854cb | 1624 | { |
ef416fc2 | 1625 | #ifdef WIN32 |
1626 | closesocket(http->fd); | |
1627 | #else | |
1628 | close(http->fd); | |
1629 | #endif /* WIN32 */ | |
1630 | ||
bd7854cb | 1631 | http->fd = -1; |
1632 | } | |
1633 | ||
ef416fc2 | 1634 | /* |
1635 | * Connect to the server... | |
1636 | */ | |
1637 | ||
1638 | if ((addr = httpAddrConnect(http->addrlist, &(http->fd))) == NULL) | |
1639 | { | |
1640 | /* | |
1641 | * Unable to connect... | |
1642 | */ | |
1643 | ||
1644 | #ifdef WIN32 | |
1645 | http->error = WSAGetLastError(); | |
1646 | #else | |
1647 | http->error = errno; | |
1648 | #endif /* WIN32 */ | |
1649 | http->status = HTTP_ERROR; | |
1650 | ||
1651 | return (-1); | |
1652 | } | |
1653 | ||
1654 | http->hostaddr = &(addr->addr); | |
1655 | http->error = 0; | |
1656 | http->status = HTTP_CONTINUE; | |
1657 | ||
1658 | #ifdef HAVE_SSL | |
1659 | if (http->encryption == HTTP_ENCRYPT_ALWAYS) | |
1660 | { | |
1661 | /* | |
1662 | * Always do encryption via SSL. | |
1663 | */ | |
1664 | ||
1665 | if (http_setup_ssl(http) != 0) | |
1666 | { | |
f7deaa1a | 1667 | # ifdef WIN32 |
ef416fc2 | 1668 | closesocket(http->fd); |
f7deaa1a | 1669 | # else |
ef416fc2 | 1670 | close(http->fd); |
f7deaa1a | 1671 | # endif /* WIN32 */ |
ef416fc2 | 1672 | |
1673 | return (-1); | |
1674 | } | |
1675 | } | |
1676 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED) | |
1677 | return (http_upgrade(http)); | |
1678 | #endif /* HAVE_SSL */ | |
1679 | ||
1680 | return (0); | |
1681 | } | |
1682 | ||
1683 | ||
1684 | /* | |
1685 | * 'httpSetCookie()' - Set the cookie value(s)... | |
1686 | * | |
1687 | * @since CUPS 1.1.19@ | |
1688 | */ | |
1689 | ||
1690 | void | |
1691 | httpSetCookie(http_t *http, /* I - Connection */ | |
1692 | const char *cookie) /* I - Cookie string */ | |
1693 | { | |
1694 | if (!http) | |
1695 | return; | |
1696 | ||
1697 | if (http->cookie) | |
1698 | free(http->cookie); | |
1699 | ||
1700 | if (cookie) | |
1701 | http->cookie = strdup(cookie); | |
1702 | else | |
1703 | http->cookie = NULL; | |
1704 | } | |
1705 | ||
1706 | ||
b423cd4c | 1707 | /* |
1708 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
1709 | * | |
1710 | * Currently only HTTP_CONTINUE is supported for the "expect" argument. | |
1711 | * | |
1712 | * @since CUPS 1.2@ | |
1713 | */ | |
1714 | ||
1715 | void | |
1716 | httpSetExpect(http_t *http, /* I - HTTP connection */ | |
1717 | http_status_t expect) /* I - HTTP status to expect (HTTP_CONTINUE) */ | |
1718 | { | |
1719 | if (http) | |
1720 | http->expect = expect; | |
1721 | } | |
1722 | ||
1723 | ||
ef416fc2 | 1724 | /* |
1725 | * 'httpSetField()' - Set the value of an HTTP header. | |
1726 | */ | |
1727 | ||
1728 | void | |
ecdc0628 | 1729 | httpSetField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1730 | http_field_t field, /* I - Field index */ |
1731 | const char *value) /* I - Value */ | |
1732 | { | |
1733 | if (http == NULL || | |
1734 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
1735 | field > HTTP_FIELD_WWW_AUTHENTICATE || | |
1736 | value == NULL) | |
1737 | return; | |
1738 | ||
1739 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
f7deaa1a | 1740 | |
1741 | /* | |
1742 | * Special case for Authorization: as its contents can be | |
1743 | * longer than HTTP_MAX_VALUE | |
1744 | */ | |
1745 | ||
1746 | if (field == HTTP_FIELD_AUTHORIZATION) | |
1747 | { | |
1748 | if (http->field_authorization) | |
1749 | free(http->field_authorization); | |
1750 | ||
1751 | http->field_authorization = strdup(value); | |
1752 | } | |
ef416fc2 | 1753 | } |
1754 | ||
1755 | ||
1756 | /* | |
1757 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
1758 | * | |
1759 | * @since CUPS 1.2@ | |
1760 | */ | |
1761 | ||
1762 | void | |
ecdc0628 | 1763 | httpSetLength(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1764 | size_t length) /* I - Length (0 for chunked) */ |
1765 | { | |
1766 | if (!http) | |
1767 | return; | |
1768 | ||
1769 | if (!length) | |
1770 | { | |
1771 | strcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked"); | |
1772 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; | |
1773 | } | |
1774 | else | |
1775 | { | |
1776 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
1777 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
1778 | CUPS_LLFMT, CUPS_LLCAST length); | |
1779 | } | |
1780 | } | |
1781 | ||
1782 | ||
1783 | /* | |
1784 | * 'httpTrace()' - Send an TRACE request to the server. | |
1785 | */ | |
1786 | ||
1787 | int /* O - Status of call (0 = success) */ | |
ecdc0628 | 1788 | httpTrace(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1789 | const char *uri) /* I - URI for trace */ |
1790 | { | |
1791 | return (http_send(http, HTTP_TRACE, uri)); | |
1792 | } | |
1793 | ||
1794 | ||
1795 | /* | |
1796 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
1797 | */ | |
1798 | ||
1799 | http_status_t /* O - HTTP status */ | |
ecdc0628 | 1800 | httpUpdate(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1801 | { |
1802 | char line[32768], /* Line from connection... */ | |
1803 | *value; /* Pointer to value on line */ | |
1804 | http_field_t field; /* Field index */ | |
1805 | int major, minor, /* HTTP version numbers */ | |
1806 | status; /* Request status */ | |
1807 | ||
1808 | ||
1809 | DEBUG_printf(("httpUpdate(http=%p), state=%d\n", http, http->state)); | |
1810 | ||
1811 | /* | |
1812 | * Flush pending data, if any... | |
1813 | */ | |
1814 | ||
1815 | if (http->wused) | |
1816 | { | |
1817 | DEBUG_puts(" flushing buffer..."); | |
1818 | ||
1819 | if (httpFlushWrite(http) < 0) | |
1820 | return (HTTP_ERROR); | |
1821 | } | |
1822 | ||
1823 | /* | |
1824 | * If we haven't issued any commands, then there is nothing to "update"... | |
1825 | */ | |
1826 | ||
1827 | if (http->state == HTTP_WAITING) | |
1828 | return (HTTP_CONTINUE); | |
1829 | ||
1830 | /* | |
1831 | * Grab all of the lines we can from the connection... | |
1832 | */ | |
1833 | ||
1834 | while (httpGets(line, sizeof(line), http) != NULL) | |
1835 | { | |
1836 | DEBUG_printf(("httpUpdate: Got \"%s\"\n", line)); | |
1837 | ||
1838 | if (line[0] == '\0') | |
1839 | { | |
1840 | /* | |
1841 | * Blank line means the start of the data section (if any). Return | |
1842 | * the result code, too... | |
1843 | * | |
1844 | * If we get status 100 (HTTP_CONTINUE), then we *don't* change states. | |
1845 | * Instead, we just return HTTP_CONTINUE to the caller and keep on | |
1846 | * tryin'... | |
1847 | */ | |
1848 | ||
1849 | if (http->status == HTTP_CONTINUE) | |
1850 | return (http->status); | |
1851 | ||
1852 | if (http->status < HTTP_BAD_REQUEST) | |
1853 | http->digest_tries = 0; | |
1854 | ||
1855 | #ifdef HAVE_SSL | |
1856 | if (http->status == HTTP_SWITCHING_PROTOCOLS && !http->tls) | |
1857 | { | |
1858 | if (http_setup_ssl(http) != 0) | |
1859 | { | |
1860 | # ifdef WIN32 | |
1861 | closesocket(http->fd); | |
1862 | # else | |
1863 | close(http->fd); | |
1864 | # endif /* WIN32 */ | |
1865 | ||
1866 | return (HTTP_ERROR); | |
1867 | } | |
1868 | ||
1869 | return (HTTP_CONTINUE); | |
1870 | } | |
1871 | #endif /* HAVE_SSL */ | |
1872 | ||
1873 | httpGetLength2(http); | |
1874 | ||
1875 | switch (http->state) | |
1876 | { | |
1877 | case HTTP_GET : | |
1878 | case HTTP_POST : | |
1879 | case HTTP_POST_RECV : | |
1880 | case HTTP_PUT : | |
1881 | http->state ++; | |
1882 | case HTTP_POST_SEND : | |
e1d6a774 | 1883 | case HTTP_HEAD : |
ef416fc2 | 1884 | break; |
1885 | ||
1886 | default : | |
1887 | http->state = HTTP_WAITING; | |
1888 | break; | |
1889 | } | |
1890 | ||
1891 | return (http->status); | |
1892 | } | |
1893 | else if (strncmp(line, "HTTP/", 5) == 0) | |
1894 | { | |
1895 | /* | |
1896 | * Got the beginning of a response... | |
1897 | */ | |
1898 | ||
1899 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &status) != 3) | |
1900 | return (HTTP_ERROR); | |
1901 | ||
1902 | http->version = (http_version_t)(major * 100 + minor); | |
1903 | http->status = (http_status_t)status; | |
1904 | } | |
1905 | else if ((value = strchr(line, ':')) != NULL) | |
1906 | { | |
1907 | /* | |
1908 | * Got a value... | |
1909 | */ | |
1910 | ||
1911 | *value++ = '\0'; | |
1912 | while (isspace(*value & 255)) | |
1913 | value ++; | |
1914 | ||
1915 | /* | |
1916 | * Be tolerants of servers that send unknown attribute fields... | |
1917 | */ | |
1918 | ||
1919 | if (!strcasecmp(line, "expect")) | |
1920 | { | |
1921 | /* | |
1922 | * "Expect: 100-continue" or similar... | |
1923 | */ | |
1924 | ||
1925 | http->expect = (http_status_t)atoi(value); | |
1926 | } | |
1927 | else if (!strcasecmp(line, "cookie")) | |
1928 | { | |
1929 | /* | |
1930 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... | |
1931 | */ | |
1932 | ||
1933 | httpSetCookie(http, value); | |
1934 | } | |
1935 | else if ((field = http_field(line)) == HTTP_FIELD_UNKNOWN) | |
1936 | { | |
1937 | DEBUG_printf(("httpUpdate: unknown field %s seen!\n", line)); | |
1938 | continue; | |
1939 | } | |
1940 | else | |
1941 | httpSetField(http, field, value); | |
1942 | } | |
1943 | else | |
1944 | { | |
1945 | http->status = HTTP_ERROR; | |
1946 | return (HTTP_ERROR); | |
1947 | } | |
1948 | } | |
1949 | ||
1950 | /* | |
1951 | * See if there was an error... | |
1952 | */ | |
1953 | ||
1954 | if (http->error == EPIPE && http->status > HTTP_CONTINUE) | |
1955 | return (http->status); | |
1956 | ||
1957 | if (http->error) | |
1958 | { | |
1959 | DEBUG_printf(("httpUpdate: socket error %d - %s\n", http->error, | |
1960 | strerror(http->error))); | |
1961 | http->status = HTTP_ERROR; | |
1962 | return (HTTP_ERROR); | |
1963 | } | |
1964 | ||
1965 | /* | |
1966 | * If we haven't already returned, then there is nothing new... | |
1967 | */ | |
1968 | ||
1969 | return (HTTP_CONTINUE); | |
1970 | } | |
1971 | ||
1972 | ||
1973 | /* | |
1974 | * 'httpWait()' - Wait for data available on a connection. | |
1975 | * | |
1976 | * @since CUPS 1.1.19@ | |
1977 | */ | |
1978 | ||
1979 | int /* O - 1 if data is available, 0 otherwise */ | |
ecdc0628 | 1980 | httpWait(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1981 | int msec) /* I - Milliseconds to wait */ |
1982 | { | |
1983 | /* | |
1984 | * First see if there is data in the buffer... | |
1985 | */ | |
1986 | ||
1987 | if (http == NULL) | |
1988 | return (0); | |
1989 | ||
1990 | if (http->used) | |
1991 | return (1); | |
1992 | ||
8ca02f3c | 1993 | /* |
1994 | * Flush pending data, if any... | |
1995 | */ | |
1996 | ||
1997 | if (http->wused) | |
1998 | { | |
1999 | if (httpFlushWrite(http) < 0) | |
2000 | return (0); | |
2001 | } | |
2002 | ||
ef416fc2 | 2003 | /* |
2004 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
2005 | */ | |
2006 | ||
411affcf | 2007 | return (http_wait(http, msec, 1)); |
ef416fc2 | 2008 | } |
2009 | ||
2010 | ||
2011 | /* | |
2012 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 2013 | * |
2014 | * This function is deprecated. Use the httpWrite2() function which can | |
2015 | * write more than 2GB of data. | |
2016 | * | |
2017 | * @deprecated@ | |
ef416fc2 | 2018 | */ |
2019 | ||
2020 | int /* O - Number of bytes written */ | |
ecdc0628 | 2021 | httpWrite(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2022 | const char *buffer, /* I - Buffer for data */ |
2023 | int length) /* I - Number of bytes to write */ | |
2024 | { | |
a4d04587 | 2025 | return ((int)httpWrite2(http, buffer, length)); |
2026 | } | |
2027 | ||
2028 | ||
2029 | /* | |
2030 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 2031 | * |
2032 | * @since CUPS 1.2@ | |
a4d04587 | 2033 | */ |
2034 | ||
2035 | ssize_t /* O - Number of bytes written */ | |
ecdc0628 | 2036 | httpWrite2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 2037 | const char *buffer, /* I - Buffer for data */ |
2038 | size_t length) /* I - Number of bytes to write */ | |
2039 | { | |
2040 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 2041 | |
2042 | ||
2043 | DEBUG_printf(("httpWrite(http=%p, buffer=%p, length=%d)\n", http, | |
2044 | buffer, length)); | |
2045 | ||
2046 | /* | |
2047 | * Range check input... | |
2048 | */ | |
2049 | ||
2050 | if (http == NULL || buffer == NULL) | |
2051 | return (-1); | |
2052 | ||
2053 | /* | |
2054 | * Mark activity on the connection... | |
2055 | */ | |
2056 | ||
2057 | http->activity = time(NULL); | |
2058 | ||
2059 | /* | |
2060 | * Buffer small writes for better performance... | |
2061 | */ | |
2062 | ||
2063 | if (length > 0) | |
2064 | { | |
2065 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
2066 | { | |
2067 | DEBUG_printf((" flushing buffer (wused=%d, length=%d)\n", | |
2068 | http->wused, length)); | |
2069 | ||
2070 | httpFlushWrite(http); | |
2071 | } | |
2072 | ||
07725fee | 2073 | if ((length + http->wused) <= sizeof(http->wbuffer)) |
ef416fc2 | 2074 | { |
2075 | /* | |
2076 | * Write to buffer... | |
2077 | */ | |
2078 | ||
2079 | DEBUG_printf((" copying %d bytes to wbuffer...\n", length)); | |
2080 | ||
2081 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 2082 | http->wused += (int)length; |
2083 | bytes = (ssize_t)length; | |
ef416fc2 | 2084 | } |
2085 | else | |
2086 | { | |
2087 | /* | |
2088 | * Otherwise write the data directly... | |
2089 | */ | |
2090 | ||
2091 | DEBUG_printf((" writing %d bytes to socket...\n", length)); | |
2092 | ||
2093 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
b86bc4cf | 2094 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 2095 | else |
b86bc4cf | 2096 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 2097 | |
2098 | DEBUG_printf((" wrote %d bytes...\n", bytes)); | |
2099 | } | |
2100 | ||
2101 | if (http->data_encoding == HTTP_ENCODE_LENGTH) | |
2102 | http->data_remaining -= bytes; | |
2103 | } | |
2104 | else | |
2105 | bytes = 0; | |
2106 | ||
2107 | /* | |
2108 | * Handle end-of-request processing... | |
2109 | */ | |
2110 | ||
2111 | if ((http->data_encoding == HTTP_ENCODE_CHUNKED && length == 0) || | |
2112 | (http->data_encoding == HTTP_ENCODE_LENGTH && http->data_remaining == 0)) | |
2113 | { | |
2114 | /* | |
2115 | * Finished with the transfer; unless we are sending POST or PUT | |
2116 | * data, go idle... | |
2117 | */ | |
2118 | ||
2119 | DEBUG_puts("httpWrite: changing states..."); | |
2120 | ||
2121 | if (http->wused) | |
2122 | httpFlushWrite(http); | |
2123 | ||
2124 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
2125 | { | |
2126 | /* | |
2127 | * Send a 0-length chunk at the end of the request... | |
2128 | */ | |
2129 | ||
2130 | http_write(http, "0\r\n\r\n", 5); | |
2131 | ||
2132 | /* | |
2133 | * Reset the data state... | |
2134 | */ | |
2135 | ||
2136 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
2137 | http->data_remaining = 0; | |
2138 | } | |
2139 | ||
2140 | if (http->state == HTTP_POST_RECV) | |
2141 | http->state ++; | |
2142 | else if (http->state == HTTP_PUT_RECV) | |
2143 | http->state = HTTP_STATUS; | |
2144 | else | |
2145 | http->state = HTTP_WAITING; | |
2146 | } | |
2147 | ||
2148 | return (bytes); | |
2149 | } | |
2150 | ||
2151 | ||
2152 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
2153 | /* | |
411affcf | 2154 | * '_httpWriteCDSA()' - Write function for the CDSA library. |
ef416fc2 | 2155 | */ |
2156 | ||
2157 | OSStatus /* O - -1 on error, 0 on success */ | |
2158 | _httpWriteCDSA( | |
2159 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2160 | const void *data, /* I - Data buffer */ | |
2161 | size_t *dataLength) /* IO - Number of bytes */ | |
2162 | { | |
411affcf | 2163 | OSStatus result; /* Return value */ |
2164 | ssize_t bytes; /* Number of bytes read */ | |
2165 | http_t *http; /* HTTP connection */ | |
e53920b9 | 2166 | |
2167 | ||
411affcf | 2168 | http = (http_t *)connection; |
ef416fc2 | 2169 | |
b423cd4c | 2170 | do |
411affcf | 2171 | { |
2172 | bytes = write(http->fd, data, *dataLength); | |
2173 | } | |
b423cd4c | 2174 | while (bytes == -1 && errno == EINTR); |
fa73b229 | 2175 | |
b423cd4c | 2176 | if (bytes == *dataLength) |
411affcf | 2177 | { |
b423cd4c | 2178 | result = 0; |
411affcf | 2179 | } |
b423cd4c | 2180 | else if (bytes >= 0) |
2181 | { | |
2182 | *dataLength = bytes; | |
2183 | result = errSSLWouldBlock; | |
2184 | } | |
2185 | else | |
2186 | { | |
2187 | *dataLength = 0; | |
2188 | ||
fa73b229 | 2189 | if (errno == EAGAIN) |
b423cd4c | 2190 | result = errSSLWouldBlock; |
b423cd4c | 2191 | else |
ed486911 | 2192 | result = errSSLClosedAbort; |
ef416fc2 | 2193 | } |
b423cd4c | 2194 | |
411affcf | 2195 | return (result); |
ef416fc2 | 2196 | } |
2197 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
2198 | ||
2199 | ||
411affcf | 2200 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
2201 | /* | |
2202 | * '_httpWriteGNUTLS()' - Write function for the GNU TLS library. | |
2203 | */ | |
2204 | ||
2205 | ssize_t /* O - Number of bytes written or -1 on error */ | |
2206 | _httpWriteGNUTLS( | |
2207 | gnutls_transport_ptr ptr, /* I - HTTP connection */ | |
2208 | const void *data, /* I - Data buffer */ | |
2209 | size_t length) /* I - Number of bytes to write */ | |
2210 | { | |
2211 | return (send(((http_t *)ptr)->fd, data, length, 0)); | |
2212 | } | |
2213 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
2214 | ||
2215 | ||
2216 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
2217 | /* | |
2218 | * 'http_bio_ctrl()' - Control the HTTP connection. | |
2219 | */ | |
2220 | ||
2221 | static long /* O - Result/data */ | |
2222 | http_bio_ctrl(BIO *h, /* I - BIO data */ | |
2223 | int cmd, /* I - Control command */ | |
2224 | long arg1, /* I - First argument */ | |
2225 | void *arg2) /* I - Second argument */ | |
2226 | { | |
2227 | switch (cmd) | |
2228 | { | |
2229 | default : | |
2230 | return (0); | |
2231 | ||
2232 | case BIO_CTRL_RESET : | |
2233 | h->ptr = NULL; | |
2234 | return (0); | |
2235 | ||
2236 | case BIO_C_SET_FILE_PTR : | |
2237 | h->ptr = arg2; | |
2238 | h->init = 1; | |
2239 | return (1); | |
2240 | ||
2241 | case BIO_C_GET_FILE_PTR : | |
2242 | if (arg2) | |
2243 | { | |
2244 | *((void **)arg2) = h->ptr; | |
2245 | return (1); | |
2246 | } | |
2247 | else | |
2248 | return (0); | |
2249 | ||
2250 | case BIO_CTRL_DUP : | |
2251 | case BIO_CTRL_FLUSH : | |
2252 | return (1); | |
2253 | } | |
2254 | } | |
2255 | ||
2256 | ||
2257 | /* | |
2258 | * 'http_bio_free()' - Free OpenSSL data. | |
2259 | */ | |
2260 | ||
2261 | static int /* O - 1 on success, 0 on failure */ | |
2262 | http_bio_free(BIO *h) /* I - BIO data */ | |
2263 | { | |
2264 | if (!h) | |
2265 | return (0); | |
2266 | ||
2267 | if (h->shutdown) | |
2268 | { | |
2269 | h->init = 0; | |
2270 | h->flags = 0; | |
2271 | } | |
2272 | ||
2273 | return (1); | |
2274 | } | |
2275 | ||
2276 | ||
2277 | /* | |
2278 | * 'http_bio_new()' - Initialize an OpenSSL BIO structure. | |
2279 | */ | |
2280 | ||
2281 | static int /* O - 1 on success, 0 on failure */ | |
2282 | http_bio_new(BIO *h) /* I - BIO data */ | |
2283 | { | |
2284 | if (!h) | |
2285 | return (0); | |
2286 | ||
2287 | h->init = 0; | |
2288 | h->num = 0; | |
2289 | h->ptr = NULL; | |
2290 | h->flags = 0; | |
2291 | ||
2292 | return (1); | |
2293 | } | |
2294 | ||
2295 | ||
2296 | /* | |
2297 | * 'http_bio_puts()' - Send a string for OpenSSL. | |
2298 | */ | |
2299 | ||
2300 | static int /* O - Bytes written */ | |
2301 | http_bio_puts(BIO *h, /* I - BIO data */ | |
2302 | const char *str) /* I - String to write */ | |
2303 | { | |
b86bc4cf | 2304 | #ifdef WIN32 |
2305 | return (send(((http_t *)h->ptr)->fd, str, (int)strlen(str), 0)); | |
2306 | #else | |
411affcf | 2307 | return (send(((http_t *)h->ptr)->fd, str, strlen(str), 0)); |
b86bc4cf | 2308 | #endif /* WIN32 */ |
411affcf | 2309 | } |
2310 | ||
2311 | ||
2312 | /* | |
2313 | * 'http_bio_read()' - Read data for OpenSSL. | |
2314 | */ | |
2315 | ||
2316 | static int /* O - Bytes read */ | |
2317 | http_bio_read(BIO *h, /* I - BIO data */ | |
2318 | char *buf, /* I - Buffer */ | |
2319 | int size) /* I - Number of bytes to read */ | |
2320 | { | |
2321 | http_t *http; /* HTTP connection */ | |
2322 | ||
2323 | ||
2324 | http = (http_t *)h->ptr; | |
2325 | ||
2326 | if (!http->blocking) | |
2327 | { | |
2328 | /* | |
2329 | * Make sure we have data before we read... | |
2330 | */ | |
2331 | ||
2332 | if (!http_wait(http, 10000, 0)) | |
2333 | { | |
b86bc4cf | 2334 | #ifdef WIN32 |
2335 | http->error = WSAETIMEDOUT; | |
2336 | #else | |
411affcf | 2337 | http->error = ETIMEDOUT; |
b86bc4cf | 2338 | #endif /* WIN32 */ |
2339 | ||
411affcf | 2340 | return (-1); |
2341 | } | |
2342 | } | |
2343 | ||
2344 | return (recv(http->fd, buf, size, 0)); | |
2345 | } | |
2346 | ||
2347 | ||
2348 | /* | |
2349 | * 'http_bio_write()' - Write data for OpenSSL. | |
2350 | */ | |
2351 | ||
2352 | static int /* O - Bytes written */ | |
2353 | http_bio_write(BIO *h, /* I - BIO data */ | |
2354 | const char *buf, /* I - Buffer to write */ | |
2355 | int num) /* I - Number of bytes to write */ | |
2356 | { | |
2357 | return (send(((http_t *)h->ptr)->fd, buf, num, 0)); | |
2358 | } | |
2359 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
2360 | ||
2361 | ||
ef416fc2 | 2362 | /* |
2363 | * 'http_field()' - Return the field index for a field name. | |
2364 | */ | |
2365 | ||
2366 | static http_field_t /* O - Field index */ | |
2367 | http_field(const char *name) /* I - String name */ | |
2368 | { | |
2369 | int i; /* Looping var */ | |
2370 | ||
2371 | ||
2372 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
2373 | if (strcasecmp(name, http_fields[i]) == 0) | |
2374 | return ((http_field_t)i); | |
2375 | ||
2376 | return (HTTP_FIELD_UNKNOWN); | |
2377 | } | |
2378 | ||
2379 | ||
2380 | #ifdef HAVE_SSL | |
2381 | /* | |
2382 | * 'http_read_ssl()' - Read from a SSL/TLS connection. | |
2383 | */ | |
2384 | ||
2385 | static int /* O - Bytes read */ | |
ecdc0628 | 2386 | http_read_ssl(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2387 | char *buf, /* I - Buffer to store data */ |
2388 | int len) /* I - Length of buffer */ | |
2389 | { | |
2390 | # if defined(HAVE_LIBSSL) | |
2391 | return (SSL_read((SSL *)(http->tls), buf, len)); | |
2392 | ||
2393 | # elif defined(HAVE_GNUTLS) | |
2394 | return (gnutls_record_recv(((http_tls_t *)(http->tls))->session, buf, len)); | |
2395 | ||
2396 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 2397 | int result; /* Return value */ |
ef416fc2 | 2398 | OSStatus error; /* Error info */ |
2399 | size_t processed; /* Number of bytes processed */ | |
2400 | ||
2401 | ||
89d46774 | 2402 | error = SSLRead(((http_tls_t *)http->tls)->session, buf, len, &processed); |
ef416fc2 | 2403 | |
fa73b229 | 2404 | switch (error) |
ef416fc2 | 2405 | { |
fa73b229 | 2406 | case 0 : |
2407 | result = (int)processed; | |
2408 | break; | |
2409 | case errSSLClosedGraceful : | |
2410 | result = 0; | |
2411 | break; | |
2412 | case errSSLWouldBlock : | |
b423cd4c | 2413 | if (processed) |
2414 | result = (int)processed; | |
2415 | else | |
2416 | { | |
2417 | result = -1; | |
2418 | errno = EINTR; | |
2419 | } | |
fa73b229 | 2420 | break; |
2421 | default : | |
2422 | errno = EPIPE; | |
2423 | result = -1; | |
2424 | break; | |
ef416fc2 | 2425 | } |
fa73b229 | 2426 | |
2427 | return (result); | |
ef416fc2 | 2428 | # endif /* HAVE_LIBSSL */ |
2429 | } | |
2430 | #endif /* HAVE_SSL */ | |
2431 | ||
2432 | ||
2433 | /* | |
2434 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
2435 | */ | |
2436 | ||
2437 | static int /* O - 0 on success, non-zero on error */ | |
ecdc0628 | 2438 | http_send(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2439 | http_state_t request, /* I - Request code */ |
2440 | const char *uri) /* I - URI */ | |
2441 | { | |
2442 | int i; /* Looping var */ | |
2443 | char *ptr, /* Pointer in buffer */ | |
2444 | buf[1024]; /* Encoded URI buffer */ | |
2445 | static const char * const codes[] = | |
2446 | { /* Request code strings */ | |
2447 | NULL, | |
2448 | "OPTIONS", | |
2449 | "GET", | |
2450 | NULL, | |
2451 | "HEAD", | |
2452 | "POST", | |
2453 | NULL, | |
2454 | NULL, | |
2455 | "PUT", | |
2456 | NULL, | |
2457 | "DELETE", | |
2458 | "TRACE", | |
2459 | "CLOSE" | |
2460 | }; | |
2461 | static const char hex[] = "0123456789ABCDEF"; | |
2462 | /* Hex digits */ | |
2463 | ||
2464 | ||
2465 | DEBUG_printf(("http_send(http=%p, request=HTTP_%s, uri=\"%s\")\n", | |
2466 | http, codes[request], uri)); | |
2467 | ||
2468 | if (http == NULL || uri == NULL) | |
2469 | return (-1); | |
2470 | ||
2471 | /* | |
2472 | * Set the User-Agent field if it isn't already... | |
2473 | */ | |
2474 | ||
2475 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
2476 | httpSetField(http, HTTP_FIELD_USER_AGENT, CUPS_MINIMAL); | |
2477 | ||
2478 | /* | |
2479 | * Encode the URI as needed... | |
2480 | */ | |
2481 | ||
2482 | for (ptr = buf; *uri != '\0' && ptr < (buf + sizeof(buf) - 1); uri ++) | |
2483 | if (*uri <= ' ' || *uri >= 127) | |
2484 | { | |
2485 | if (ptr < (buf + sizeof(buf) - 1)) | |
2486 | *ptr ++ = '%'; | |
2487 | if (ptr < (buf + sizeof(buf) - 1)) | |
2488 | *ptr ++ = hex[(*uri >> 4) & 15]; | |
2489 | if (ptr < (buf + sizeof(buf) - 1)) | |
2490 | *ptr ++ = hex[*uri & 15]; | |
2491 | } | |
2492 | else | |
2493 | *ptr ++ = *uri; | |
2494 | ||
2495 | *ptr = '\0'; | |
2496 | ||
2497 | /* | |
2498 | * See if we had an error the last time around; if so, reconnect... | |
2499 | */ | |
2500 | ||
2501 | if (http->status == HTTP_ERROR || http->status >= HTTP_BAD_REQUEST) | |
fa73b229 | 2502 | if (httpReconnect(http)) |
2503 | return (-1); | |
ef416fc2 | 2504 | |
d09495fa | 2505 | /* |
2506 | * Flush any written data that is pending... | |
2507 | */ | |
2508 | ||
2509 | if (http->wused) | |
2510 | httpFlushWrite(http); | |
2511 | ||
ef416fc2 | 2512 | /* |
2513 | * Send the request header... | |
2514 | */ | |
2515 | ||
d09495fa | 2516 | http->state = request; |
2517 | http->data_encoding = HTTP_ENCODE_FIELDS; | |
2518 | ||
ef416fc2 | 2519 | if (request == HTTP_POST || request == HTTP_PUT) |
2520 | http->state ++; | |
2521 | ||
2522 | http->status = HTTP_CONTINUE; | |
2523 | ||
2524 | #ifdef HAVE_SSL | |
2525 | if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
2526 | { | |
2527 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
2528 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.0,SSL/2.0,SSL/3.0"); | |
2529 | } | |
2530 | #endif /* HAVE_SSL */ | |
2531 | ||
2532 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
2533 | { | |
2534 | http->status = HTTP_ERROR; | |
2535 | return (-1); | |
2536 | } | |
2537 | ||
2538 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
2539 | if (http->fields[i][0] != '\0') | |
2540 | { | |
f7deaa1a | 2541 | DEBUG_printf(("%s: %s\n", http_fields[i], httpGetField(http, i))); |
ef416fc2 | 2542 | |
f7deaa1a | 2543 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], |
2544 | httpGetField(http, i)) < 1) | |
ef416fc2 | 2545 | { |
2546 | http->status = HTTP_ERROR; | |
2547 | return (-1); | |
2548 | } | |
2549 | } | |
2550 | ||
2551 | if (http->cookie) | |
2552 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
2553 | { | |
2554 | http->status = HTTP_ERROR; | |
2555 | return (-1); | |
2556 | } | |
2557 | ||
b423cd4c | 2558 | if (http->expect == HTTP_CONTINUE && |
2559 | (http->state == HTTP_POST_RECV || http->state == HTTP_PUT_RECV)) | |
2560 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) | |
2561 | { | |
2562 | http->status = HTTP_ERROR; | |
2563 | return (-1); | |
2564 | } | |
2565 | ||
ef416fc2 | 2566 | if (httpPrintf(http, "\r\n") < 1) |
2567 | { | |
2568 | http->status = HTTP_ERROR; | |
2569 | return (-1); | |
2570 | } | |
2571 | ||
d09495fa | 2572 | httpFlushWrite(http); |
ef416fc2 | 2573 | httpGetLength2(http); |
2574 | httpClearFields(http); | |
2575 | ||
f7deaa1a | 2576 | /* |
2577 | * The Kerberos authentication string can only be used once... | |
2578 | */ | |
2579 | ||
2580 | if (http->authstring && !strncmp(http->authstring, "Negotiate", 9)) | |
2581 | { | |
2582 | http->_authstring[0] = '\0'; | |
2583 | ||
2584 | if (http->authstring != http->_authstring) | |
2585 | free(http->authstring); | |
2586 | ||
2587 | http->authstring = http->_authstring; | |
2588 | } | |
2589 | ||
ef416fc2 | 2590 | return (0); |
2591 | } | |
2592 | ||
2593 | ||
2594 | #ifdef HAVE_SSL | |
2595 | /* | |
2596 | * 'http_setup_ssl()' - Set up SSL/TLS support on a connection. | |
2597 | */ | |
2598 | ||
2599 | static int /* O - Status of connection */ | |
ecdc0628 | 2600 | http_setup_ssl(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 2601 | { |
2602 | # ifdef HAVE_LIBSSL | |
89d46774 | 2603 | SSL_CTX *context; /* Context for encryption */ |
2604 | SSL *conn; /* Connection for encryption */ | |
411affcf | 2605 | BIO *bio; /* BIO data */ |
ef416fc2 | 2606 | # elif defined(HAVE_GNUTLS) |
89d46774 | 2607 | http_tls_t *conn; /* TLS session object */ |
ef416fc2 | 2608 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 2609 | /* TLS credentials */ |
ef416fc2 | 2610 | # elif defined(HAVE_CDSASSL) |
89d46774 | 2611 | OSStatus error; /* Error code */ |
2612 | http_tls_t *conn; /* CDSA connection information */ | |
ef416fc2 | 2613 | # endif /* HAVE_LIBSSL */ |
2614 | ||
2615 | ||
2616 | DEBUG_printf(("http_setup_ssl(http=%p)\n", http)); | |
2617 | ||
2618 | # ifdef HAVE_LIBSSL | |
2619 | context = SSL_CTX_new(SSLv23_client_method()); | |
2620 | ||
2621 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
2622 | ||
411affcf | 2623 | bio = BIO_new(_httpBIOMethods()); |
2624 | BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)http); | |
2625 | ||
ef416fc2 | 2626 | conn = SSL_new(context); |
411affcf | 2627 | SSL_set_bio(conn, bio, bio); |
ef416fc2 | 2628 | |
ef416fc2 | 2629 | if (SSL_connect(conn) != 1) |
2630 | { | |
2631 | # ifdef DEBUG | |
2632 | unsigned long error; /* Error code */ | |
2633 | ||
2634 | while ((error = ERR_get_error()) != 0) | |
2635 | printf("http_setup_ssl: %s\n", ERR_error_string(error, NULL)); | |
2636 | # endif /* DEBUG */ | |
2637 | ||
2638 | SSL_CTX_free(context); | |
2639 | SSL_free(conn); | |
2640 | ||
2641 | # ifdef WIN32 | |
2642 | http->error = WSAGetLastError(); | |
2643 | # else | |
2644 | http->error = errno; | |
2645 | # endif /* WIN32 */ | |
2646 | http->status = HTTP_ERROR; | |
2647 | ||
2648 | return (HTTP_ERROR); | |
2649 | } | |
2650 | ||
2651 | # elif defined(HAVE_GNUTLS) | |
89d46774 | 2652 | if ((conn = (http_tls_t *)malloc(sizeof(http_tls_t))) == NULL) |
ef416fc2 | 2653 | { |
2654 | http->error = errno; | |
2655 | http->status = HTTP_ERROR; | |
2656 | ||
2657 | return (-1); | |
2658 | } | |
2659 | ||
2660 | credentials = (gnutls_certificate_client_credentials *) | |
2661 | malloc(sizeof(gnutls_certificate_client_credentials)); | |
2662 | if (credentials == NULL) | |
2663 | { | |
2664 | free(conn); | |
2665 | ||
2666 | http->error = errno; | |
2667 | http->status = HTTP_ERROR; | |
2668 | ||
2669 | return (-1); | |
2670 | } | |
2671 | ||
2672 | gnutls_certificate_allocate_credentials(credentials); | |
2673 | ||
2674 | gnutls_init(&(conn->session), GNUTLS_CLIENT); | |
2675 | gnutls_set_default_priority(conn->session); | |
2676 | gnutls_credentials_set(conn->session, GNUTLS_CRD_CERTIFICATE, *credentials); | |
411affcf | 2677 | gnutls_transport_set_ptr(conn->session, (gnutls_transport_ptr)http); |
2678 | gnutls_transport_set_pull_function(conn->session, _httpReadGNUTLS); | |
2679 | gnutls_transport_set_push_function(conn->session, _httpWriteGNUTLS); | |
ef416fc2 | 2680 | |
2681 | if ((gnutls_handshake(conn->session)) != GNUTLS_E_SUCCESS) | |
2682 | { | |
2683 | http->error = errno; | |
2684 | http->status = HTTP_ERROR; | |
2685 | ||
2686 | return (-1); | |
2687 | } | |
2688 | ||
2689 | conn->credentials = credentials; | |
2690 | ||
2691 | # elif defined(HAVE_CDSASSL) | |
89d46774 | 2692 | conn = (http_tls_t *)calloc(1, sizeof(http_tls_t)); |
e53920b9 | 2693 | |
89d46774 | 2694 | if (conn == NULL) |
2695 | return (-1); | |
e53920b9 | 2696 | |
89d46774 | 2697 | if ((error = SSLNewContext(false, &conn->session))) |
e53920b9 | 2698 | { |
89d46774 | 2699 | http->error = error; |
2700 | http->status = HTTP_ERROR; | |
e53920b9 | 2701 | |
89d46774 | 2702 | free(conn); |
2703 | return (-1); | |
e53920b9 | 2704 | } |
ef416fc2 | 2705 | |
89d46774 | 2706 | /* |
2707 | * Use a union to resolve warnings about int/pointer size mismatches... | |
2708 | */ | |
2709 | ||
411affcf | 2710 | error = SSLSetConnection(conn->session, http); |
89d46774 | 2711 | |
2712 | if (!error) | |
2713 | error = SSLSetIOFuncs(conn->session, _httpReadCDSA, _httpWriteCDSA); | |
2714 | ||
ef416fc2 | 2715 | if (!error) |
89d46774 | 2716 | error = SSLSetAllowsExpiredCerts(conn->session, true); |
ef416fc2 | 2717 | |
2718 | if (!error) | |
89d46774 | 2719 | error = SSLSetAllowsAnyRoot(conn->session, true); |
ef416fc2 | 2720 | |
ed486911 | 2721 | if (!error) |
2722 | error = SSLSetProtocolVersionEnabled(conn->session, kSSLProtocol2, false); | |
2723 | ||
ef416fc2 | 2724 | if (!error) |
b423cd4c | 2725 | { |
89d46774 | 2726 | while ((error = SSLHandshake(conn->session)) == errSSLWouldBlock) |
b423cd4c | 2727 | usleep(1000); |
2728 | } | |
ef416fc2 | 2729 | |
89d46774 | 2730 | if (error) |
ef416fc2 | 2731 | { |
2732 | http->error = error; | |
2733 | http->status = HTTP_ERROR; | |
2734 | ||
89d46774 | 2735 | SSLDisposeContext(conn->session); |
ef416fc2 | 2736 | |
89d46774 | 2737 | free(conn); |
ef416fc2 | 2738 | |
2739 | return (-1); | |
2740 | } | |
2741 | # endif /* HAVE_CDSASSL */ | |
2742 | ||
2743 | http->tls = conn; | |
2744 | return (0); | |
2745 | } | |
2746 | #endif /* HAVE_SSL */ | |
2747 | ||
2748 | ||
2749 | #ifdef HAVE_SSL | |
2750 | /* | |
2751 | * 'http_shutdown_ssl()' - Shut down SSL/TLS on a connection. | |
2752 | */ | |
2753 | ||
2754 | static void | |
89d46774 | 2755 | http_shutdown_ssl(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 2756 | { |
2757 | # ifdef HAVE_LIBSSL | |
89d46774 | 2758 | SSL_CTX *context; /* Context for encryption */ |
2759 | SSL *conn; /* Connection for encryption */ | |
ef416fc2 | 2760 | |
2761 | ||
2762 | conn = (SSL *)(http->tls); | |
2763 | context = SSL_get_SSL_CTX(conn); | |
2764 | ||
2765 | SSL_shutdown(conn); | |
2766 | SSL_CTX_free(context); | |
2767 | SSL_free(conn); | |
2768 | ||
2769 | # elif defined(HAVE_GNUTLS) | |
89d46774 | 2770 | http_tls_t *conn; /* Encryption session */ |
ef416fc2 | 2771 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 2772 | /* TLS credentials */ |
ef416fc2 | 2773 | |
2774 | ||
2775 | conn = (http_tls_t *)(http->tls); | |
2776 | credentials = (gnutls_certificate_client_credentials *)(conn->credentials); | |
2777 | ||
2778 | gnutls_bye(conn->session, GNUTLS_SHUT_RDWR); | |
2779 | gnutls_deinit(conn->session); | |
2780 | gnutls_certificate_free_credentials(*credentials); | |
2781 | free(credentials); | |
2782 | free(conn); | |
2783 | ||
2784 | # elif defined(HAVE_CDSASSL) | |
89d46774 | 2785 | http_tls_t *conn; /* CDSA connection information */ |
2786 | ||
2787 | ||
2788 | conn = (http_tls_t *)(http->tls); | |
2789 | ||
2790 | while (SSLClose(conn->session) == errSSLWouldBlock) | |
b423cd4c | 2791 | usleep(1000); |
2792 | ||
89d46774 | 2793 | SSLDisposeContext(conn->session); |
2794 | ||
2795 | if (conn->certsArray) | |
2796 | CFRelease(conn->certsArray); | |
2797 | ||
2798 | free(conn); | |
ef416fc2 | 2799 | # endif /* HAVE_LIBSSL */ |
2800 | ||
2801 | http->tls = NULL; | |
2802 | } | |
2803 | #endif /* HAVE_SSL */ | |
2804 | ||
2805 | ||
2806 | #ifdef HAVE_SSL | |
2807 | /* | |
2808 | * 'http_upgrade()' - Force upgrade to TLS encryption. | |
2809 | */ | |
2810 | ||
89d46774 | 2811 | static int /* O - Status of connection */ |
2812 | http_upgrade(http_t *http) /* I - HTTP connection */ | |
ef416fc2 | 2813 | { |
89d46774 | 2814 | int ret; /* Return value */ |
2815 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 2816 | |
2817 | ||
2818 | DEBUG_printf(("http_upgrade(%p)\n", http)); | |
2819 | ||
2820 | /* | |
2821 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
2822 | * request without interfering with the existing request data... | |
2823 | */ | |
2824 | ||
2825 | memcpy(&myhttp, http, sizeof(myhttp)); | |
2826 | ||
2827 | /* | |
2828 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
2829 | * encryption on the link... | |
2830 | */ | |
2831 | ||
f7deaa1a | 2832 | http->field_authorization = NULL; /* Don't free the auth string */ |
2833 | ||
b86bc4cf | 2834 | httpClearFields(http); |
2835 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
2836 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.0, SSL/2.0, SSL/3.0"); | |
ef416fc2 | 2837 | |
b86bc4cf | 2838 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 2839 | { |
2840 | /* | |
2841 | * Wait for the secure connection... | |
2842 | */ | |
2843 | ||
b86bc4cf | 2844 | while (httpUpdate(http) == HTTP_CONTINUE); |
ef416fc2 | 2845 | } |
2846 | ||
b86bc4cf | 2847 | httpFlush(http); |
ef416fc2 | 2848 | |
2849 | /* | |
b86bc4cf | 2850 | * Restore the HTTP request data... |
ef416fc2 | 2851 | */ |
2852 | ||
b86bc4cf | 2853 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 2854 | http->data_encoding = myhttp.data_encoding; |
2855 | http->data_remaining = myhttp.data_remaining; | |
2856 | http->_data_remaining = myhttp._data_remaining; | |
2857 | http->expect = myhttp.expect; | |
2858 | http->field_authorization = myhttp.field_authorization; | |
ef416fc2 | 2859 | |
2860 | /* | |
2861 | * See if we actually went secure... | |
2862 | */ | |
2863 | ||
2864 | if (!http->tls) | |
2865 | { | |
2866 | /* | |
2867 | * Server does not support HTTP upgrade... | |
2868 | */ | |
2869 | ||
2870 | DEBUG_puts("Server does not support HTTP upgrade!"); | |
2871 | ||
2872 | # ifdef WIN32 | |
2873 | closesocket(http->fd); | |
2874 | # else | |
2875 | close(http->fd); | |
2876 | # endif | |
2877 | ||
2878 | http->fd = -1; | |
2879 | ||
2880 | return (-1); | |
2881 | } | |
2882 | else | |
2883 | return (ret); | |
2884 | } | |
2885 | #endif /* HAVE_SSL */ | |
2886 | ||
2887 | ||
2888 | /* | |
2889 | * 'http_wait()' - Wait for data available on a connection. | |
2890 | */ | |
2891 | ||
2892 | static int /* O - 1 if data is available, 0 otherwise */ | |
ecdc0628 | 2893 | http_wait(http_t *http, /* I - HTTP connection */ |
411affcf | 2894 | int msec, /* I - Milliseconds to wait */ |
2895 | int usessl) /* I - Use SSL context? */ | |
ef416fc2 | 2896 | { |
f7deaa1a | 2897 | #ifdef HAVE_POLL |
2898 | struct pollfd pfd; /* Polled file descriptor */ | |
2899 | #else | |
2900 | fd_set input_set; /* select() input set */ | |
ef416fc2 | 2901 | struct timeval timeout; /* Timeout */ |
f7deaa1a | 2902 | #endif /* HAVE_POLL */ |
2903 | int nfds; /* Result from select()/poll() */ | |
ef416fc2 | 2904 | |
2905 | ||
2906 | DEBUG_printf(("http_wait(http=%p, msec=%d)\n", http, msec)); | |
2907 | ||
fa73b229 | 2908 | if (http->fd < 0) |
2909 | return (0); | |
2910 | ||
ef416fc2 | 2911 | /* |
2912 | * Check the SSL/TLS buffers for data first... | |
2913 | */ | |
2914 | ||
2915 | #ifdef HAVE_SSL | |
411affcf | 2916 | if (http->tls && usessl) |
ef416fc2 | 2917 | { |
2918 | # ifdef HAVE_LIBSSL | |
2919 | if (SSL_pending((SSL *)(http->tls))) | |
2920 | return (1); | |
2921 | # elif defined(HAVE_GNUTLS) | |
2922 | if (gnutls_record_check_pending(((http_tls_t *)(http->tls))->session)) | |
2923 | return (1); | |
2924 | # elif defined(HAVE_CDSASSL) | |
2925 | size_t bytes; /* Bytes that are available */ | |
2926 | ||
89d46774 | 2927 | if (!SSLGetBufferedReadSize(((http_tls_t *)http->tls)->session, &bytes) && bytes > 0) |
ef416fc2 | 2928 | return (1); |
2929 | # endif /* HAVE_LIBSSL */ | |
2930 | } | |
2931 | #endif /* HAVE_SSL */ | |
2932 | ||
2933 | /* | |
f7deaa1a | 2934 | * Then try doing a select() or poll() to poll the socket... |
ef416fc2 | 2935 | */ |
2936 | ||
f7deaa1a | 2937 | #ifdef HAVE_POLL |
2938 | pfd.fd = http->fd; | |
2939 | pfd.events = POLLIN; | |
ef416fc2 | 2940 | |
f7deaa1a | 2941 | while ((nfds = poll(&pfd, 1, msec)) < 0 && errno == EINTR); |
ef416fc2 | 2942 | |
f7deaa1a | 2943 | #else |
ef416fc2 | 2944 | do |
2945 | { | |
f7deaa1a | 2946 | FD_ZERO(&input_set); |
2947 | FD_SET(http->fd, &input_set); | |
ef416fc2 | 2948 | |
89d46774 | 2949 | DEBUG_printf(("http_wait: msec=%d, http->fd=%d\n", msec, http->fd)); |
2950 | ||
ef416fc2 | 2951 | if (msec >= 0) |
2952 | { | |
2953 | timeout.tv_sec = msec / 1000; | |
2954 | timeout.tv_usec = (msec % 1000) * 1000; | |
2955 | ||
f7deaa1a | 2956 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); |
ef416fc2 | 2957 | } |
2958 | else | |
f7deaa1a | 2959 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); |
89d46774 | 2960 | |
2961 | DEBUG_printf(("http_wait: select() returned %d...\n", nfds)); | |
ef416fc2 | 2962 | } |
f7deaa1a | 2963 | # ifdef WIN32 |
ef416fc2 | 2964 | while (nfds < 0 && WSAGetLastError() == WSAEINTR); |
f7deaa1a | 2965 | # else |
ef416fc2 | 2966 | while (nfds < 0 && errno == EINTR); |
f7deaa1a | 2967 | # endif /* WIN32 */ |
2968 | #endif /* HAVE_POLL */ | |
ef416fc2 | 2969 | |
89d46774 | 2970 | DEBUG_printf(("http_wait: returning with nfds=%d...\n", nfds)); |
2971 | ||
ef416fc2 | 2972 | return (nfds > 0); |
2973 | } | |
2974 | ||
2975 | ||
2976 | /* | |
2977 | * 'http_write()' - Write a buffer to a HTTP connection. | |
2978 | */ | |
2979 | ||
2980 | static int /* O - Number of bytes written */ | |
ecdc0628 | 2981 | http_write(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2982 | const char *buffer, /* I - Buffer for data */ |
2983 | int length) /* I - Number of bytes to write */ | |
2984 | { | |
2985 | int tbytes, /* Total bytes sent */ | |
2986 | bytes; /* Bytes sent */ | |
2987 | ||
2988 | ||
2989 | tbytes = 0; | |
2990 | ||
2991 | while (length > 0) | |
2992 | { | |
2993 | #ifdef HAVE_SSL | |
2994 | if (http->tls) | |
2995 | bytes = http_write_ssl(http, buffer, length); | |
2996 | else | |
2997 | #endif /* HAVE_SSL */ | |
2998 | bytes = send(http->fd, buffer, length, 0); | |
2999 | ||
3000 | if (bytes < 0) | |
3001 | { | |
3002 | #ifdef WIN32 | |
3003 | if (WSAGetLastError() != http->error) | |
3004 | { | |
3005 | http->error = WSAGetLastError(); | |
3006 | continue; | |
3007 | } | |
3008 | #else | |
3009 | if (errno == EINTR) | |
3010 | continue; | |
3011 | else if (errno != http->error && errno != ECONNRESET) | |
3012 | { | |
3013 | http->error = errno; | |
3014 | continue; | |
3015 | } | |
3016 | #endif /* WIN32 */ | |
3017 | ||
3018 | DEBUG_puts("http_write: error writing data...\n"); | |
3019 | ||
3020 | return (-1); | |
3021 | } | |
3022 | ||
3023 | buffer += bytes; | |
3024 | tbytes += bytes; | |
3025 | length -= bytes; | |
3026 | } | |
3027 | ||
3028 | #ifdef DEBUG | |
3029 | { | |
3030 | int i, j, ch; | |
3031 | printf("http_write: wrote %d bytes: \n", tbytes); | |
3032 | for (i = 0, buffer -= tbytes; i < tbytes; i += 16) | |
3033 | { | |
3034 | printf(" "); | |
3035 | ||
3036 | for (j = 0; j < 16 && (i + j) < tbytes; j ++) | |
3037 | printf(" %02X", buffer[i + j] & 255); | |
3038 | ||
3039 | while (j < 16) | |
3040 | { | |
3041 | printf(" "); | |
3042 | j ++; | |
3043 | } | |
3044 | ||
3045 | printf(" "); | |
3046 | for (j = 0; j < 16 && (i + j) < tbytes; j ++) | |
3047 | { | |
3048 | ch = buffer[i + j] & 255; | |
3049 | ||
3050 | if (ch < ' ' || ch == 127) | |
3051 | ch = '.'; | |
3052 | ||
3053 | putchar(ch); | |
3054 | } | |
3055 | putchar('\n'); | |
3056 | } | |
3057 | } | |
3058 | #endif /* DEBUG */ | |
3059 | ||
3060 | return (tbytes); | |
3061 | } | |
3062 | ||
3063 | ||
3064 | /* | |
3065 | * 'http_write_chunk()' - Write a chunked buffer. | |
3066 | */ | |
3067 | ||
3068 | static int /* O - Number bytes written */ | |
ecdc0628 | 3069 | http_write_chunk(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3070 | const char *buffer, /* I - Buffer to write */ |
3071 | int length) /* I - Length of buffer */ | |
3072 | { | |
3073 | char header[255]; /* Chunk header */ | |
3074 | int bytes; /* Bytes written */ | |
3075 | ||
3076 | DEBUG_printf(("http_write_chunk(http=%p, buffer=%p, length=%d)\n", | |
3077 | http, buffer, length)); | |
3078 | ||
3079 | /* | |
3080 | * Write the chunk header, data, and trailer. | |
3081 | */ | |
3082 | ||
3083 | sprintf(header, "%x\r\n", length); | |
b86bc4cf | 3084 | if (http_write(http, header, (int)strlen(header)) < 0) |
ef416fc2 | 3085 | { |
3086 | DEBUG_puts(" http_write of length failed!"); | |
3087 | return (-1); | |
3088 | } | |
3089 | ||
3090 | if ((bytes = http_write(http, buffer, length)) < 0) | |
3091 | { | |
3092 | DEBUG_puts(" http_write of buffer failed!"); | |
3093 | return (-1); | |
3094 | } | |
3095 | ||
3096 | if (http_write(http, "\r\n", 2) < 0) | |
3097 | { | |
3098 | DEBUG_puts(" http_write of CR LF failed!"); | |
3099 | return (-1); | |
3100 | } | |
3101 | ||
3102 | return (bytes); | |
3103 | } | |
3104 | ||
3105 | ||
3106 | #ifdef HAVE_SSL | |
3107 | /* | |
3108 | * 'http_write_ssl()' - Write to a SSL/TLS connection. | |
3109 | */ | |
3110 | ||
3111 | static int /* O - Bytes written */ | |
ecdc0628 | 3112 | http_write_ssl(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3113 | const char *buf, /* I - Buffer holding data */ |
3114 | int len) /* I - Length of buffer */ | |
3115 | { | |
3116 | # if defined(HAVE_LIBSSL) | |
3117 | return (SSL_write((SSL *)(http->tls), buf, len)); | |
3118 | ||
3119 | # elif defined(HAVE_GNUTLS) | |
3120 | return (gnutls_record_send(((http_tls_t *)(http->tls))->session, buf, len)); | |
3121 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 3122 | int result; /* Return value */ |
ef416fc2 | 3123 | OSStatus error; /* Error info */ |
3124 | size_t processed; /* Number of bytes processed */ | |
3125 | ||
3126 | ||
89d46774 | 3127 | error = SSLWrite(((http_tls_t *)http->tls)->session, buf, len, &processed); |
ef416fc2 | 3128 | |
fa73b229 | 3129 | switch (error) |
ef416fc2 | 3130 | { |
fa73b229 | 3131 | case 0 : |
3132 | result = (int)processed; | |
3133 | break; | |
3134 | case errSSLClosedGraceful : | |
3135 | result = 0; | |
3136 | break; | |
3137 | case errSSLWouldBlock : | |
b423cd4c | 3138 | if (processed) |
3139 | result = (int)processed; | |
3140 | else | |
3141 | { | |
3142 | result = -1; | |
3143 | errno = EINTR; | |
3144 | } | |
fa73b229 | 3145 | break; |
3146 | default : | |
3147 | errno = EPIPE; | |
3148 | result = -1; | |
3149 | break; | |
ef416fc2 | 3150 | } |
fa73b229 | 3151 | |
3152 | return (result); | |
ef416fc2 | 3153 | # endif /* HAVE_LIBSSL */ |
3154 | } | |
3155 | #endif /* HAVE_SSL */ | |
3156 | ||
3157 | ||
3158 | /* | |
f7deaa1a | 3159 | * End of "$Id: http.c 6285 2007-02-16 01:10:55Z mike $". |
ef416fc2 | 3160 | */ |