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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: http.c 7850 2008-08-20 00:07:25Z mike $" |
ef416fc2 | 3 | * |
4 | * HTTP routines for the Common UNIX Printing System (CUPS). | |
5 | * | |
91c84a35 | 6 | * Copyright 2007-2008 by Apple Inc. |
b86bc4cf | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
f7deaa1a | 9 | * This file contains Kerberos support code, copyright 2006 by |
10 | * Jelmer Vernooij. | |
11 | * | |
ef416fc2 | 12 | * These coded instructions, statements, and computer programs are the |
bc44d920 | 13 | * property of Apple Inc. and are protected by Federal copyright |
14 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
15 | * which should have been included with this file. If this file is | |
16 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 17 | * |
18 | * This file is subject to the Apple OS-Developed Software exception. | |
19 | * | |
20 | * Contents: | |
21 | * | |
411affcf | 22 | * _httpBIOMethods() - Get the OpenSSL BIO methods for HTTP connections. |
ecdc0628 | 23 | * httpBlocking() - Set blocking/non-blocking behavior on a connection. |
ef416fc2 | 24 | * httpCheck() - Check to see if there is a pending response from |
25 | * the server. | |
26 | * httpClearCookie() - Clear the cookie value(s). | |
ecdc0628 | 27 | * httpClearFields() - Clear HTTP request fields. |
ef416fc2 | 28 | * httpClose() - Close an HTTP connection... |
29 | * httpConnect() - Connect to a HTTP server. | |
30 | * httpConnectEncrypt() - Connect to a HTTP server using encryption. | |
31 | * httpDelete() - Send a DELETE request to the server. | |
32 | * httpEncryption() - Set the required encryption on the link. | |
ecdc0628 | 33 | * httpError() - Get the last error on a connection. |
ef416fc2 | 34 | * httpFlush() - Flush data from a HTTP connection. |
35 | * httpFlushWrite() - Flush data in write buffer. | |
36 | * httpGet() - Send a GET request to the server. | |
355e94dc | 37 | * httpGetAuthString() - Get the current authorization string. |
ecdc0628 | 38 | * httpGetBlocking() - Get the blocking/non-block state of a connection. |
39 | * httpGetCookie() - Get any cookie data from the response. | |
40 | * httpGetFd() - Get the file descriptor associated with a | |
41 | * connection. | |
42 | * httpGetField() - Get a field value from a request/response. | |
ef416fc2 | 43 | * httpGetLength() - Get the amount of data remaining from the |
44 | * content-length or transfer-encoding fields. | |
45 | * httpGetLength2() - Get the amount of data remaining from the | |
46 | * content-length or transfer-encoding fields. | |
ecdc0628 | 47 | * httpGetStatus() - Get the status of the last HTTP request. |
ef416fc2 | 48 | * httpGetSubField() - Get a sub-field value. |
49 | * httpGets() - Get a line of text from a HTTP connection. | |
50 | * httpHead() - Send a HEAD request to the server. | |
51 | * httpInitialize() - Initialize the HTTP interface library and set the | |
52 | * default HTTP proxy (if any). | |
53 | * httpOptions() - Send an OPTIONS request to the server. | |
54 | * httpPost() - Send a POST request to the server. | |
55 | * httpPrintf() - Print a formatted string to a HTTP connection. | |
56 | * httpPut() - Send a PUT request to the server. | |
57 | * httpRead() - Read data from a HTTP connection. | |
a4d04587 | 58 | * httpRead2() - Read data from a HTTP connection. |
411affcf | 59 | * _httpReadCDSA() - Read function for the CDSA library. |
60 | * _httpReadGNUTLS() - Read function for the GNU TLS library. | |
ef416fc2 | 61 | * httpReconnect() - Reconnect to a HTTP server... |
355e94dc | 62 | * httpSetAuthString() - Set the current authorization string. |
ef416fc2 | 63 | * httpSetCookie() - Set the cookie value(s)... |
b423cd4c | 64 | * httpSetExpect() - Set the Expect: header in a request. |
ef416fc2 | 65 | * httpSetField() - Set the value of an HTTP header. |
66 | * httpSetLength() - Set the content-length and transfer-encoding. | |
67 | * httpTrace() - Send an TRACE request to the server. | |
68 | * httpUpdate() - Update the current HTTP state for incoming data. | |
69 | * httpWait() - Wait for data available on a connection. | |
70 | * httpWrite() - Write data to a HTTP connection. | |
a4d04587 | 71 | * httpWrite2() - Write data to a HTTP connection. |
411affcf | 72 | * _httpWriteCDSA() - Write function for the CDSA library. |
73 | * _httpWriteGNUTLS() - Write function for the GNU TLS library. | |
74 | * http_bio_ctrl() - Control the HTTP connection. | |
75 | * http_bio_free() - Free OpenSSL data. | |
76 | * http_bio_new() - Initialize an OpenSSL BIO structure. | |
77 | * http_bio_puts() - Send a string for OpenSSL. | |
78 | * http_bio_read() - Read data for OpenSSL. | |
79 | * http_bio_write() - Write data for OpenSSL. | |
ae71f5de | 80 | * http_debug_hex() - Do a hex dump of a buffer. |
ef416fc2 | 81 | * http_field() - Return the field index for a field name. |
82 | * http_read_ssl() - Read from a SSL/TLS connection. | |
83 | * http_send() - Send a request with all fields and the trailing | |
84 | * blank line. | |
85 | * http_setup_ssl() - Set up SSL/TLS on a connection. | |
86 | * http_shutdown_ssl() - Shut down SSL/TLS on a connection. | |
87 | * http_upgrade() - Force upgrade to TLS encryption. | |
88 | * http_wait() - Wait for data available on a connection. | |
89 | * http_write() - Write data to a connection. | |
90 | * http_write_ssl() - Write to a SSL/TLS connection. | |
91 | */ | |
92 | ||
93 | /* | |
94 | * Include necessary headers... | |
95 | */ | |
96 | ||
97 | #include "http-private.h" | |
98 | #include "globals.h" | |
99 | #include "debug.h" | |
100 | #include <stdlib.h> | |
101 | #include <fcntl.h> | |
102 | #include <errno.h> | |
103 | #ifndef WIN32 | |
104 | # include <signal.h> | |
105 | # include <sys/time.h> | |
106 | # include <sys/resource.h> | |
107 | #endif /* !WIN32 */ | |
f7deaa1a | 108 | #ifdef HAVE_POLL |
109 | # include <sys/poll.h> | |
110 | #endif /* HAVE_POLL */ | |
ef416fc2 | 111 | |
112 | ||
113 | /* | |
114 | * Some operating systems have done away with the Fxxxx constants for | |
115 | * the fcntl() call; this works around that "feature"... | |
116 | */ | |
117 | ||
118 | #ifndef FNONBLK | |
119 | # define FNONBLK O_NONBLOCK | |
120 | #endif /* !FNONBLK */ | |
121 | ||
122 | ||
123 | /* | |
124 | * Local functions... | |
125 | */ | |
126 | ||
ae71f5de MS |
127 | #ifdef DEBUG |
128 | static void http_debug_hex(const char *prefix, const char *buffer, | |
129 | int bytes); | |
130 | #endif /* DEBUG */ | |
ef416fc2 | 131 | static http_field_t http_field(const char *name); |
132 | static int http_send(http_t *http, http_state_t request, | |
133 | const char *uri); | |
411affcf | 134 | static int http_wait(http_t *http, int msec, int usessl); |
ef416fc2 | 135 | static int http_write(http_t *http, const char *buffer, |
136 | int length); | |
137 | static int http_write_chunk(http_t *http, const char *buffer, | |
138 | int length); | |
139 | #ifdef HAVE_SSL | |
140 | static int http_read_ssl(http_t *http, char *buf, int len); | |
141 | static int http_setup_ssl(http_t *http); | |
142 | static void http_shutdown_ssl(http_t *http); | |
143 | static int http_upgrade(http_t *http); | |
144 | static int http_write_ssl(http_t *http, const char *buf, int len); | |
145 | #endif /* HAVE_SSL */ | |
146 | ||
147 | ||
148 | /* | |
149 | * Local globals... | |
150 | */ | |
151 | ||
152 | static const char * const http_fields[] = | |
153 | { | |
154 | "Accept-Language", | |
155 | "Accept-Ranges", | |
156 | "Authorization", | |
157 | "Connection", | |
158 | "Content-Encoding", | |
159 | "Content-Language", | |
160 | "Content-Length", | |
161 | "Content-Location", | |
162 | "Content-MD5", | |
163 | "Content-Range", | |
164 | "Content-Type", | |
165 | "Content-Version", | |
166 | "Date", | |
167 | "Host", | |
168 | "If-Modified-Since", | |
169 | "If-Unmodified-since", | |
170 | "Keep-Alive", | |
171 | "Last-Modified", | |
172 | "Link", | |
173 | "Location", | |
174 | "Range", | |
175 | "Referer", | |
176 | "Retry-After", | |
177 | "Transfer-Encoding", | |
178 | "Upgrade", | |
179 | "User-Agent", | |
180 | "WWW-Authenticate" | |
181 | }; | |
182 | ||
183 | ||
411affcf | 184 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) |
185 | /* | |
186 | * BIO methods for OpenSSL... | |
187 | */ | |
188 | ||
189 | static int http_bio_write(BIO *h, const char *buf, int num); | |
190 | static int http_bio_read(BIO *h, char *buf, int size); | |
191 | static int http_bio_puts(BIO *h, const char *str); | |
192 | static long http_bio_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
193 | static int http_bio_new(BIO *h); | |
194 | static int http_bio_free(BIO *data); | |
195 | ||
196 | static BIO_METHOD http_bio_methods = | |
197 | { | |
198 | BIO_TYPE_SOCKET, | |
199 | "http", | |
200 | http_bio_write, | |
201 | http_bio_read, | |
202 | http_bio_puts, | |
203 | NULL, /* http_bio_gets, */ | |
204 | http_bio_ctrl, | |
205 | http_bio_new, | |
206 | http_bio_free, | |
207 | NULL, | |
208 | }; | |
209 | ||
210 | ||
211 | /* | |
212 | * '_httpBIOMethods()' - Get the OpenSSL BIO methods for HTTP connections. | |
213 | */ | |
214 | ||
215 | BIO_METHOD * /* O - BIO methods for OpenSSL */ | |
216 | _httpBIOMethods(void) | |
217 | { | |
218 | return (&http_bio_methods); | |
219 | } | |
220 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
221 | ||
222 | ||
ecdc0628 | 223 | /* |
224 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
225 | */ | |
226 | ||
227 | void | |
568fa3fa | 228 | httpBlocking(http_t *http, /* I - Connection to server */ |
ecdc0628 | 229 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
230 | { | |
231 | if (http) | |
232 | http->blocking = b; | |
233 | } | |
234 | ||
235 | ||
ef416fc2 | 236 | /* |
237 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
238 | */ | |
239 | ||
ecdc0628 | 240 | int /* O - 0 = no data, 1 = data available */ |
568fa3fa | 241 | httpCheck(http_t *http) /* I - Connection to server */ |
ef416fc2 | 242 | { |
243 | return (httpWait(http, 0)); | |
244 | } | |
245 | ||
246 | ||
247 | /* | |
248 | * 'httpClearCookie()' - Clear the cookie value(s). | |
249 | * | |
426c6a59 | 250 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 251 | */ |
252 | ||
253 | void | |
568fa3fa | 254 | httpClearCookie(http_t *http) /* I - Connection to server */ |
ef416fc2 | 255 | { |
256 | if (!http) | |
257 | return; | |
258 | ||
259 | if (http->cookie) | |
260 | { | |
261 | free(http->cookie); | |
262 | http->cookie = NULL; | |
263 | } | |
264 | } | |
265 | ||
266 | ||
ecdc0628 | 267 | /* |
268 | * 'httpClearFields()' - Clear HTTP request fields. | |
269 | */ | |
270 | ||
271 | void | |
568fa3fa | 272 | httpClearFields(http_t *http) /* I - Connection to server */ |
ecdc0628 | 273 | { |
274 | if (http) | |
275 | { | |
276 | memset(http->fields, 0, sizeof(http->fields)); | |
07725fee | 277 | if (http->hostname[0] == '/') |
278 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
279 | else | |
280 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
b423cd4c | 281 | |
f7deaa1a | 282 | if (http->field_authorization) |
283 | { | |
284 | free(http->field_authorization); | |
285 | http->field_authorization = NULL; | |
286 | } | |
287 | ||
b423cd4c | 288 | http->expect = (http_status_t)0; |
ecdc0628 | 289 | } |
290 | } | |
291 | ||
292 | ||
ef416fc2 | 293 | /* |
294 | * 'httpClose()' - Close an HTTP connection... | |
295 | */ | |
296 | ||
297 | void | |
568fa3fa | 298 | httpClose(http_t *http) /* I - Connection to server */ |
ef416fc2 | 299 | { |
f7deaa1a | 300 | #ifdef HAVE_GSSAPI |
1f0275e3 | 301 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 302 | #endif /* HAVE_GSSAPI */ |
303 | ||
304 | ||
ef416fc2 | 305 | DEBUG_printf(("httpClose(http=%p)\n", http)); |
306 | ||
307 | if (!http) | |
308 | return; | |
309 | ||
310 | httpAddrFreeList(http->addrlist); | |
311 | ||
ef416fc2 | 312 | if (http->cookie) |
313 | free(http->cookie); | |
314 | ||
315 | #ifdef HAVE_SSL | |
316 | if (http->tls) | |
317 | http_shutdown_ssl(http); | |
318 | #endif /* HAVE_SSL */ | |
319 | ||
320 | #ifdef WIN32 | |
321 | closesocket(http->fd); | |
322 | #else | |
323 | close(http->fd); | |
324 | #endif /* WIN32 */ | |
325 | ||
f7deaa1a | 326 | #ifdef HAVE_GSSAPI |
327 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 328 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 329 | |
330 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 331 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 332 | #endif /* HAVE_GSSAPI */ |
333 | ||
b94498cf | 334 | #ifdef HAVE_AUTHORIZATION_H |
335 | if (http->auth_ref) | |
336 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
337 | #endif /* HAVE_AUTHORIZATION_H */ | |
338 | ||
f7deaa1a | 339 | httpClearFields(http); |
340 | ||
341 | if (http->authstring && http->authstring != http->_authstring) | |
342 | free(http->authstring); | |
343 | ||
ef416fc2 | 344 | free(http); |
345 | } | |
346 | ||
347 | ||
348 | /* | |
349 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e MS |
350 | * |
351 | * This function is deprecated - use @link httpConnectEncrypt@ instead. | |
352 | * | |
353 | * @deprecated@ | |
ef416fc2 | 354 | */ |
355 | ||
356 | http_t * /* O - New HTTP connection */ | |
357 | httpConnect(const char *host, /* I - Host to connect to */ | |
358 | int port) /* I - Port number */ | |
359 | { | |
1ff0402e MS |
360 | return (httpConnectEncrypt(host, port, HTTP_ENCRYPT_IF_REQUESTED)); |
361 | } | |
362 | ||
363 | ||
364 | /* | |
365 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
366 | */ | |
367 | ||
368 | http_t * /* O - New HTTP connection */ | |
369 | httpConnectEncrypt( | |
370 | const char *host, /* I - Host to connect to */ | |
371 | int port, /* I - Port number */ | |
372 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
373 | { | |
374 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 375 | |
376 | ||
1ff0402e MS |
377 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)\n", |
378 | host, port, encryption)); | |
379 | ||
ef416fc2 | 380 | /* |
1ff0402e | 381 | * Create the HTTP structure... |
ef416fc2 | 382 | */ |
383 | ||
1ff0402e MS |
384 | if ((http = _httpCreate(host, port, encryption)) == NULL) |
385 | return (NULL); | |
ef416fc2 | 386 | |
1ff0402e MS |
387 | /* |
388 | * Connect to the remote system... | |
389 | */ | |
390 | ||
391 | if (!httpReconnect(http)) | |
392 | return (http); | |
393 | ||
394 | /* | |
395 | * Could not connect to any known address - bail out! | |
396 | */ | |
397 | ||
398 | httpAddrFreeList(http->addrlist); | |
399 | ||
400 | free(http); | |
401 | ||
402 | return (NULL); | |
ef416fc2 | 403 | } |
404 | ||
405 | ||
406 | /* | |
1ff0402e | 407 | * '_httpCreate()' - Create an unconnected HTTP connection. |
ef416fc2 | 408 | */ |
409 | ||
1ff0402e MS |
410 | http_t * /* O - HTTP connection */ |
411 | _httpCreate( | |
412 | const char *host, /* I - Hostname */ | |
ef416fc2 | 413 | int port, /* I - Port number */ |
1ff0402e | 414 | http_encryption_t encryption) /* I - Encryption to use */ |
ef416fc2 | 415 | { |
416 | http_t *http; /* New HTTP connection */ | |
417 | http_addrlist_t *addrlist; /* Host address data */ | |
418 | char service[255]; /* Service name */ | |
419 | ||
420 | ||
1ff0402e MS |
421 | DEBUG_printf(("_httpCreate(host=\"%s\", port=%d, encryption=%d)\n", |
422 | host, port, encryption)); | |
ef416fc2 | 423 | |
424 | if (!host) | |
425 | return (NULL); | |
426 | ||
427 | httpInitialize(); | |
428 | ||
429 | /* | |
430 | * Lookup the host... | |
431 | */ | |
432 | ||
433 | sprintf(service, "%d", port); | |
434 | ||
435 | if ((addrlist = httpAddrGetList(host, AF_UNSPEC, service)) == NULL) | |
436 | return (NULL); | |
437 | ||
438 | /* | |
439 | * Allocate memory for the structure... | |
440 | */ | |
441 | ||
91c84a35 MS |
442 | if ((http = calloc(sizeof(http_t), 1)) == NULL) |
443 | { | |
444 | httpAddrFreeList(addrlist); | |
ef416fc2 | 445 | return (NULL); |
91c84a35 | 446 | } |
ef416fc2 | 447 | |
1ff0402e MS |
448 | /* |
449 | * Initialize the HTTP data... | |
450 | */ | |
451 | ||
ef416fc2 | 452 | http->activity = time(NULL); |
1ff0402e MS |
453 | http->addrlist = addrlist; |
454 | http->blocking = 1; | |
ef416fc2 | 455 | http->fd = -1; |
f7deaa1a | 456 | #ifdef HAVE_GSSAPI |
1ff0402e MS |
457 | http->gssctx = GSS_C_NO_CONTEXT; |
458 | http->gssname = GSS_C_NO_NAME; | |
f7deaa1a | 459 | #endif /* HAVE_GSSAPI */ |
1ff0402e | 460 | http->version = HTTP_1_1; |
f7deaa1a | 461 | |
1ff0402e | 462 | strlcpy(http->hostname, host, sizeof(http->hostname)); |
ef416fc2 | 463 | |
464 | if (port == 443) /* Always use encryption for https */ | |
465 | http->encryption = HTTP_ENCRYPT_ALWAYS; | |
466 | else | |
467 | http->encryption = encryption; | |
468 | ||
469 | /* | |
1ff0402e | 470 | * Return the new structure... |
ef416fc2 | 471 | */ |
472 | ||
1ff0402e | 473 | return (http); |
ef416fc2 | 474 | } |
475 | ||
476 | ||
477 | /* | |
478 | * 'httpDelete()' - Send a DELETE request to the server. | |
479 | */ | |
480 | ||
481 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 482 | httpDelete(http_t *http, /* I - Connection to server */ |
ef416fc2 | 483 | const char *uri) /* I - URI to delete */ |
484 | { | |
485 | return (http_send(http, HTTP_DELETE, uri)); | |
486 | } | |
487 | ||
488 | ||
489 | /* | |
490 | * 'httpEncryption()' - Set the required encryption on the link. | |
491 | */ | |
492 | ||
493 | int /* O - -1 on error, 0 on success */ | |
568fa3fa | 494 | httpEncryption(http_t *http, /* I - Connection to server */ |
ef416fc2 | 495 | http_encryption_t e) /* I - New encryption preference */ |
496 | { | |
497 | DEBUG_printf(("httpEncryption(http=%p, e=%d)\n", http, e)); | |
498 | ||
499 | #ifdef HAVE_SSL | |
500 | if (!http) | |
501 | return (0); | |
502 | ||
503 | http->encryption = e; | |
504 | ||
505 | if ((http->encryption == HTTP_ENCRYPT_ALWAYS && !http->tls) || | |
506 | (http->encryption == HTTP_ENCRYPT_NEVER && http->tls)) | |
507 | return (httpReconnect(http)); | |
508 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
509 | return (http_upgrade(http)); | |
510 | else | |
511 | return (0); | |
512 | #else | |
513 | if (e == HTTP_ENCRYPT_ALWAYS || e == HTTP_ENCRYPT_REQUIRED) | |
514 | return (-1); | |
515 | else | |
516 | return (0); | |
517 | #endif /* HAVE_SSL */ | |
518 | } | |
519 | ||
520 | ||
ecdc0628 | 521 | /* |
522 | * 'httpError()' - Get the last error on a connection. | |
523 | */ | |
524 | ||
525 | int /* O - Error code (errno) value */ | |
568fa3fa | 526 | httpError(http_t *http) /* I - Connection to server */ |
ecdc0628 | 527 | { |
528 | if (http) | |
529 | return (http->error); | |
530 | else | |
531 | return (EINVAL); | |
532 | } | |
533 | ||
534 | ||
ef416fc2 | 535 | /* |
536 | * 'httpFlush()' - Flush data from a HTTP connection. | |
537 | */ | |
538 | ||
539 | void | |
568fa3fa | 540 | httpFlush(http_t *http) /* I - Connection to server */ |
ef416fc2 | 541 | { |
542 | char buffer[8192]; /* Junk buffer */ | |
fa73b229 | 543 | int blocking; /* To block or not to block */ |
ef416fc2 | 544 | |
545 | ||
546 | DEBUG_printf(("httpFlush(http=%p), state=%d\n", http, http->state)); | |
547 | ||
fa73b229 | 548 | /* |
549 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
550 | */ | |
551 | ||
552 | blocking = http->blocking; | |
553 | http->blocking = 0; | |
554 | ||
555 | /* | |
556 | * Read any data we can... | |
557 | */ | |
558 | ||
a4d04587 | 559 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 560 | |
561 | /* | |
562 | * Restore blocking and reset the connection if we didn't get all of | |
563 | * the remaining data... | |
564 | */ | |
565 | ||
566 | http->blocking = blocking; | |
567 | ||
568 | if (http->state != HTTP_WAITING && http->fd >= 0) | |
569 | { | |
570 | /* | |
571 | * Didn't get the data back, so close the current connection. | |
572 | */ | |
573 | ||
574 | http->state = HTTP_WAITING; | |
575 | ||
576 | #ifdef HAVE_SSL | |
577 | if (http->tls) | |
578 | http_shutdown_ssl(http); | |
579 | #endif /* HAVE_SSL */ | |
580 | ||
581 | #ifdef WIN32 | |
582 | closesocket(http->fd); | |
583 | #else | |
584 | close(http->fd); | |
585 | #endif /* WIN32 */ | |
586 | ||
587 | http->fd = -1; | |
588 | } | |
ef416fc2 | 589 | } |
590 | ||
591 | ||
592 | /* | |
593 | * 'httpFlushWrite()' - Flush data in write buffer. | |
594 | * | |
426c6a59 | 595 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 596 | */ |
597 | ||
598 | int /* O - Bytes written or -1 on error */ | |
568fa3fa | 599 | httpFlushWrite(http_t *http) /* I - Connection to server */ |
ef416fc2 | 600 | { |
601 | int bytes; /* Bytes written */ | |
602 | ||
603 | ||
604 | DEBUG_printf(("httpFlushWrite(http=%p)\n", http)); | |
605 | ||
606 | if (!http || !http->wused) | |
607 | return (0); | |
608 | ||
609 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
610 | bytes = http_write_chunk(http, http->wbuffer, http->wused); | |
611 | else | |
612 | bytes = http_write(http, http->wbuffer, http->wused); | |
613 | ||
614 | http->wused = 0; | |
615 | ||
616 | return (bytes); | |
617 | } | |
618 | ||
619 | ||
620 | /* | |
621 | * 'httpGet()' - Send a GET request to the server. | |
622 | */ | |
623 | ||
624 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 625 | httpGet(http_t *http, /* I - Connection to server */ |
ef416fc2 | 626 | const char *uri) /* I - URI to get */ |
627 | { | |
628 | return (http_send(http, HTTP_GET, uri)); | |
629 | } | |
630 | ||
631 | ||
355e94dc MS |
632 | /* |
633 | * 'httpGetAuthString()' - Get the current authorization string. | |
634 | * | |
635 | * The authorization string is set by cupsDoAuthentication() and | |
636 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
637 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
638 | * value. | |
639 | * | |
426c6a59 | 640 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
641 | */ |
642 | ||
643 | char * /* O - Authorization string */ | |
568fa3fa | 644 | httpGetAuthString(http_t *http) /* I - Connection to server */ |
355e94dc MS |
645 | { |
646 | if (http) | |
647 | return (http->authstring); | |
648 | else | |
649 | return (NULL); | |
650 | } | |
651 | ||
652 | ||
ecdc0628 | 653 | /* |
654 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
655 | * | |
426c6a59 | 656 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 657 | */ |
658 | ||
659 | int /* O - 1 if blocking, 0 if non-blocking */ | |
568fa3fa | 660 | httpGetBlocking(http_t *http) /* I - Connection to server */ |
ecdc0628 | 661 | { |
662 | return (http ? http->blocking : 0); | |
663 | } | |
664 | ||
665 | ||
666 | /* | |
667 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 668 | * |
426c6a59 | 669 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ecdc0628 | 670 | */ |
671 | ||
672 | const char * /* O - Cookie data or NULL */ | |
673 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
674 | { | |
675 | return (http ? http->cookie : NULL); | |
676 | } | |
677 | ||
678 | ||
679 | /* | |
680 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
681 | * | |
426c6a59 | 682 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 683 | */ |
684 | ||
685 | int /* O - File descriptor or -1 if none */ | |
568fa3fa | 686 | httpGetFd(http_t *http) /* I - Connection to server */ |
ecdc0628 | 687 | { |
688 | return (http ? http->fd : -1); | |
689 | } | |
690 | ||
691 | ||
692 | /* | |
693 | * 'httpGetField()' - Get a field value from a request/response. | |
694 | */ | |
695 | ||
696 | const char * /* O - Field value */ | |
568fa3fa | 697 | httpGetField(http_t *http, /* I - Connection to server */ |
ecdc0628 | 698 | http_field_t field) /* I - Field to get */ |
699 | { | |
700 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
701 | return (NULL); | |
f7deaa1a | 702 | else if (field == HTTP_FIELD_AUTHORIZATION && |
703 | http->field_authorization) | |
704 | { | |
705 | /* | |
706 | * Special case for WWW-Authenticate: as its contents can be | |
707 | * longer than HTTP_MAX_VALUE... | |
708 | */ | |
709 | ||
710 | return (http->field_authorization); | |
711 | } | |
ecdc0628 | 712 | else |
713 | return (http->fields[field]); | |
714 | } | |
715 | ||
716 | ||
717 | /* | |
718 | * 'httpGetLength()' - Get the amount of data remaining from the | |
719 | * content-length or transfer-encoding fields. | |
720 | * | |
721 | * This function is deprecated and will not return lengths larger than | |
722 | * 2^31 - 1; use httpGetLength2() instead. | |
723 | * | |
724 | * @deprecated@ | |
725 | */ | |
726 | ||
727 | int /* O - Content length */ | |
568fa3fa | 728 | httpGetLength(http_t *http) /* I - Connection to server */ |
ecdc0628 | 729 | { |
730 | /* | |
731 | * Get the read content length and return the 32-bit value. | |
732 | */ | |
733 | ||
734 | if (http) | |
735 | { | |
736 | httpGetLength2(http); | |
737 | ||
738 | return (http->_data_remaining); | |
739 | } | |
740 | else | |
741 | return (-1); | |
742 | } | |
743 | ||
744 | ||
745 | /* | |
746 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
747 | * content-length or transfer-encoding fields. | |
748 | * | |
749 | * This function returns the complete content length, even for | |
750 | * content larger than 2^31 - 1. | |
751 | * | |
426c6a59 | 752 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 753 | */ |
754 | ||
755 | off_t /* O - Content length */ | |
568fa3fa | 756 | httpGetLength2(http_t *http) /* I - Connection to server */ |
ecdc0628 | 757 | { |
758 | DEBUG_printf(("httpGetLength2(http=%p), state=%d\n", http, http->state)); | |
759 | ||
760 | if (!http) | |
761 | return (-1); | |
762 | ||
763 | if (!strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) | |
764 | { | |
765 | DEBUG_puts("httpGetLength2: chunked request!"); | |
766 | ||
767 | http->data_encoding = HTTP_ENCODE_CHUNKED; | |
768 | http->data_remaining = 0; | |
769 | } | |
770 | else | |
771 | { | |
772 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
773 | ||
774 | /* | |
775 | * The following is a hack for HTTP servers that don't send a | |
776 | * content-length or transfer-encoding field... | |
777 | * | |
778 | * If there is no content-length then the connection must close | |
779 | * after the transfer is complete... | |
780 | */ | |
781 | ||
b86bc4cf | 782 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
783 | { | |
784 | /* | |
785 | * Default content length is 0 for errors and 2^31-1 for other | |
786 | * successful requests... | |
787 | */ | |
788 | ||
789 | if (http->status >= HTTP_MULTIPLE_CHOICES) | |
790 | http->data_remaining = 0; | |
791 | else | |
792 | http->data_remaining = 2147483647; | |
793 | } | |
ecdc0628 | 794 | else |
795 | http->data_remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], | |
796 | NULL, 10); | |
797 | ||
798 | DEBUG_printf(("httpGetLength2: content_length=" CUPS_LLFMT "\n", | |
799 | CUPS_LLCAST http->data_remaining)); | |
800 | } | |
801 | ||
802 | if (http->data_remaining <= INT_MAX) | |
803 | http->_data_remaining = (int)http->data_remaining; | |
804 | else | |
805 | http->_data_remaining = INT_MAX; | |
806 | ||
807 | return (http->data_remaining); | |
808 | } | |
809 | ||
810 | ||
811 | /* | |
812 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
813 | * | |
426c6a59 | 814 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 815 | */ |
816 | ||
817 | http_status_t /* O - HTTP status */ | |
568fa3fa | 818 | httpGetStatus(http_t *http) /* I - Connection to server */ |
ecdc0628 | 819 | { |
820 | return (http ? http->status : HTTP_ERROR); | |
821 | } | |
822 | ||
823 | ||
ef416fc2 | 824 | /* |
825 | * 'httpGetSubField()' - Get a sub-field value. | |
826 | * | |
827 | * @deprecated@ | |
828 | */ | |
829 | ||
830 | char * /* O - Value or NULL */ | |
568fa3fa | 831 | httpGetSubField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 832 | http_field_t field, /* I - Field index */ |
833 | const char *name, /* I - Name of sub-field */ | |
834 | char *value) /* O - Value string */ | |
835 | { | |
836 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
837 | } | |
838 | ||
839 | ||
840 | /* | |
841 | * 'httpGetSubField2()' - Get a sub-field value. | |
842 | * | |
426c6a59 | 843 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 844 | */ |
845 | ||
846 | char * /* O - Value or NULL */ | |
568fa3fa | 847 | httpGetSubField2(http_t *http, /* I - Connection to server */ |
ef416fc2 | 848 | http_field_t field, /* I - Field index */ |
849 | const char *name, /* I - Name of sub-field */ | |
850 | char *value, /* O - Value string */ | |
851 | int valuelen) /* I - Size of value buffer */ | |
852 | { | |
853 | const char *fptr; /* Pointer into field */ | |
854 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
855 | *ptr, /* Pointer into string buffer */ | |
856 | *end; /* End of value buffer */ | |
857 | ||
858 | DEBUG_printf(("httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, valuelen=%d)\n", | |
859 | http, field, name, value, valuelen)); | |
860 | ||
861 | if (!http || !name || !value || valuelen < 2 || | |
ecdc0628 | 862 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) |
ef416fc2 | 863 | return (NULL); |
864 | ||
865 | end = value + valuelen - 1; | |
866 | ||
867 | for (fptr = http->fields[field]; *fptr;) | |
868 | { | |
869 | /* | |
870 | * Skip leading whitespace... | |
871 | */ | |
872 | ||
873 | while (isspace(*fptr & 255)) | |
874 | fptr ++; | |
875 | ||
876 | if (*fptr == ',') | |
877 | { | |
878 | fptr ++; | |
879 | continue; | |
880 | } | |
881 | ||
882 | /* | |
883 | * Get the sub-field name... | |
884 | */ | |
885 | ||
886 | for (ptr = temp; | |
887 | *fptr && *fptr != '=' && !isspace(*fptr & 255) && | |
888 | ptr < (temp + sizeof(temp) - 1); | |
889 | *ptr++ = *fptr++); | |
890 | ||
891 | *ptr = '\0'; | |
892 | ||
893 | DEBUG_printf(("httpGetSubField: name=\"%s\"\n", temp)); | |
894 | ||
895 | /* | |
896 | * Skip trailing chars up to the '='... | |
897 | */ | |
898 | ||
899 | while (isspace(*fptr & 255)) | |
900 | fptr ++; | |
901 | ||
902 | if (!*fptr) | |
903 | break; | |
904 | ||
905 | if (*fptr != '=') | |
906 | continue; | |
907 | ||
908 | /* | |
909 | * Skip = and leading whitespace... | |
910 | */ | |
911 | ||
912 | fptr ++; | |
913 | ||
914 | while (isspace(*fptr & 255)) | |
915 | fptr ++; | |
916 | ||
917 | if (*fptr == '\"') | |
918 | { | |
919 | /* | |
920 | * Read quoted string... | |
921 | */ | |
922 | ||
923 | for (ptr = value, fptr ++; | |
924 | *fptr && *fptr != '\"' && ptr < end; | |
925 | *ptr++ = *fptr++); | |
926 | ||
927 | *ptr = '\0'; | |
928 | ||
929 | while (*fptr && *fptr != '\"') | |
930 | fptr ++; | |
931 | ||
932 | if (*fptr) | |
933 | fptr ++; | |
934 | } | |
935 | else | |
936 | { | |
937 | /* | |
938 | * Read unquoted string... | |
939 | */ | |
940 | ||
941 | for (ptr = value; | |
942 | *fptr && !isspace(*fptr & 255) && *fptr != ',' && ptr < end; | |
943 | *ptr++ = *fptr++); | |
944 | ||
945 | *ptr = '\0'; | |
946 | ||
947 | while (*fptr && !isspace(*fptr & 255) && *fptr != ',') | |
948 | fptr ++; | |
949 | } | |
950 | ||
951 | DEBUG_printf(("httpGetSubField: value=\"%s\"\n", value)); | |
952 | ||
953 | /* | |
954 | * See if this is the one... | |
955 | */ | |
956 | ||
957 | if (!strcmp(name, temp)) | |
958 | return (value); | |
959 | } | |
960 | ||
961 | value[0] = '\0'; | |
962 | ||
963 | return (NULL); | |
964 | } | |
965 | ||
966 | ||
ef416fc2 | 967 | /* |
968 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
969 | */ | |
970 | ||
971 | char * /* O - Line or NULL */ | |
972 | httpGets(char *line, /* I - Line to read into */ | |
973 | int length, /* I - Max length of buffer */ | |
568fa3fa | 974 | http_t *http) /* I - Connection to server */ |
ef416fc2 | 975 | { |
976 | char *lineptr, /* Pointer into line */ | |
977 | *lineend, /* End of line */ | |
978 | *bufptr, /* Pointer into input buffer */ | |
979 | *bufend; /* Pointer to end of buffer */ | |
980 | int bytes, /* Number of bytes read */ | |
981 | eol; /* End-of-line? */ | |
982 | ||
983 | ||
984 | DEBUG_printf(("httpGets(line=%p, length=%d, http=%p)\n", line, length, http)); | |
985 | ||
986 | if (http == NULL || line == NULL) | |
987 | return (NULL); | |
988 | ||
989 | /* | |
990 | * Read a line from the buffer... | |
991 | */ | |
992 | ||
993 | lineptr = line; | |
994 | lineend = line + length - 1; | |
995 | eol = 0; | |
996 | ||
997 | while (lineptr < lineend) | |
998 | { | |
999 | /* | |
1000 | * Pre-load the buffer as needed... | |
1001 | */ | |
1002 | ||
1003 | #ifdef WIN32 | |
1004 | WSASetLastError(0); | |
1005 | #else | |
1006 | errno = 0; | |
1007 | #endif /* WIN32 */ | |
1008 | ||
1009 | while (http->used == 0) | |
1010 | { | |
1011 | /* | |
1012 | * No newline; see if there is more data to be read... | |
1013 | */ | |
1014 | ||
411affcf | 1015 | if (!http->blocking && !http_wait(http, 10000, 1)) |
89d46774 | 1016 | { |
1017 | DEBUG_puts("httpGets: Timed out!"); | |
b86bc4cf | 1018 | #ifdef WIN32 |
1019 | http->error = WSAETIMEDOUT; | |
1020 | #else | |
89d46774 | 1021 | http->error = ETIMEDOUT; |
b86bc4cf | 1022 | #endif /* WIN32 */ |
ef416fc2 | 1023 | return (NULL); |
89d46774 | 1024 | } |
ef416fc2 | 1025 | |
1026 | #ifdef HAVE_SSL | |
1027 | if (http->tls) | |
1028 | bytes = http_read_ssl(http, http->buffer + http->used, | |
1029 | HTTP_MAX_BUFFER - http->used); | |
1030 | else | |
1031 | #endif /* HAVE_SSL */ | |
1032 | bytes = recv(http->fd, http->buffer + http->used, | |
1033 | HTTP_MAX_BUFFER - http->used, 0); | |
1034 | ||
1035 | DEBUG_printf(("httpGets: read %d bytes...\n", bytes)); | |
1036 | ||
1037 | if (bytes < 0) | |
1038 | { | |
1039 | /* | |
1040 | * Nope, can't get a line this time... | |
1041 | */ | |
1042 | ||
1043 | #ifdef WIN32 | |
1044 | if (WSAGetLastError() != http->error) | |
1045 | { | |
1046 | http->error = WSAGetLastError(); | |
1047 | continue; | |
1048 | } | |
1049 | ||
1050 | DEBUG_printf(("httpGets: recv() error %d!\n", WSAGetLastError())); | |
1051 | #else | |
1052 | DEBUG_printf(("httpGets: recv() error %d!\n", errno)); | |
1053 | ||
1054 | if (errno == EINTR) | |
1055 | continue; | |
1056 | else if (errno != http->error) | |
1057 | { | |
1058 | http->error = errno; | |
1059 | continue; | |
1060 | } | |
1061 | #endif /* WIN32 */ | |
1062 | ||
1063 | return (NULL); | |
1064 | } | |
1065 | else if (bytes == 0) | |
1066 | { | |
1067 | http->error = EPIPE; | |
1068 | ||
1069 | return (NULL); | |
1070 | } | |
1071 | ||
1072 | /* | |
1073 | * Yup, update the amount used... | |
1074 | */ | |
1075 | ||
1076 | http->used += bytes; | |
1077 | } | |
1078 | ||
1079 | /* | |
1080 | * Now copy as much of the current line as possible... | |
1081 | */ | |
1082 | ||
1083 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1084 | lineptr < lineend && bufptr < bufend;) | |
1085 | { | |
1086 | if (*bufptr == 0x0a) | |
1087 | { | |
1088 | eol = 1; | |
1089 | bufptr ++; | |
1090 | break; | |
1091 | } | |
1092 | else if (*bufptr == 0x0d) | |
1093 | bufptr ++; | |
1094 | else | |
1095 | *lineptr++ = *bufptr++; | |
1096 | } | |
1097 | ||
b86bc4cf | 1098 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1099 | if (http->used > 0) |
1100 | memmove(http->buffer, bufptr, http->used); | |
1101 | ||
1102 | if (eol) | |
1103 | { | |
1104 | /* | |
1105 | * End of line... | |
1106 | */ | |
1107 | ||
1108 | http->activity = time(NULL); | |
1109 | ||
1110 | *lineptr = '\0'; | |
1111 | ||
1112 | DEBUG_printf(("httpGets: Returning \"%s\"\n", line)); | |
1113 | ||
1114 | return (line); | |
1115 | } | |
1116 | } | |
1117 | ||
1118 | DEBUG_puts("httpGets: No new line available!"); | |
1119 | ||
1120 | return (NULL); | |
1121 | } | |
1122 | ||
1123 | ||
1124 | /* | |
1125 | * 'httpHead()' - Send a HEAD request to the server. | |
1126 | */ | |
1127 | ||
1128 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1129 | httpHead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1130 | const char *uri) /* I - URI for head */ |
1131 | { | |
1132 | return (http_send(http, HTTP_HEAD, uri)); | |
1133 | } | |
1134 | ||
1135 | ||
1136 | /* | |
1137 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1138 | * default HTTP proxy (if any). | |
1139 | */ | |
1140 | ||
1141 | void | |
1142 | httpInitialize(void) | |
1143 | { | |
1144 | #ifdef HAVE_LIBSSL | |
1145 | # ifndef WIN32 | |
1146 | struct timeval curtime; /* Current time in microseconds */ | |
1147 | # endif /* !WIN32 */ | |
1148 | int i; /* Looping var */ | |
1149 | unsigned char data[1024]; /* Seed data */ | |
1150 | #endif /* HAVE_LIBSSL */ | |
1151 | ||
1152 | #ifdef WIN32 | |
1153 | WSADATA winsockdata; /* WinSock data */ | |
1154 | static int initialized = 0; /* Has WinSock been initialized? */ | |
1155 | ||
1156 | ||
1157 | if (!initialized) | |
1158 | WSAStartup(MAKEWORD(1,1), &winsockdata); | |
fa73b229 | 1159 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1160 | /* |
1161 | * Ignore SIGPIPE signals... | |
1162 | */ | |
1163 | ||
fa73b229 | 1164 | # ifdef HAVE_SIGSET |
1165 | sigset(SIGPIPE, SIG_IGN); | |
1166 | # elif defined(HAVE_SIGACTION) | |
1167 | struct sigaction action; /* POSIX sigaction data */ | |
1168 | ||
1169 | ||
ef416fc2 | 1170 | memset(&action, 0, sizeof(action)); |
1171 | action.sa_handler = SIG_IGN; | |
1172 | sigaction(SIGPIPE, &action, NULL); | |
fa73b229 | 1173 | # else |
ef416fc2 | 1174 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1175 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1176 | #endif /* WIN32 */ |
1177 | ||
1178 | #ifdef HAVE_GNUTLS | |
1179 | gnutls_global_init(); | |
1180 | #endif /* HAVE_GNUTLS */ | |
1181 | ||
1182 | #ifdef HAVE_LIBSSL | |
1183 | SSL_load_error_strings(); | |
1184 | SSL_library_init(); | |
1185 | ||
1186 | /* | |
1187 | * Using the current time is a dubious random seed, but on some systems | |
1188 | * it is the best we can do (on others, this seed isn't even used...) | |
1189 | */ | |
1190 | ||
1191 | #ifdef WIN32 | |
1192 | #else | |
1193 | gettimeofday(&curtime, NULL); | |
1194 | srand(curtime.tv_sec + curtime.tv_usec); | |
1195 | #endif /* WIN32 */ | |
1196 | ||
1197 | for (i = 0; i < sizeof(data); i ++) | |
1198 | data[i] = rand(); /* Yes, this is a poor source of random data... */ | |
1199 | ||
1200 | RAND_seed(&data, sizeof(data)); | |
1201 | #endif /* HAVE_LIBSSL */ | |
1202 | } | |
1203 | ||
1204 | ||
1205 | /* | |
1206 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1207 | */ | |
1208 | ||
1209 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1210 | httpOptions(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1211 | const char *uri) /* I - URI for options */ |
1212 | { | |
1213 | return (http_send(http, HTTP_OPTIONS, uri)); | |
1214 | } | |
1215 | ||
1216 | ||
1217 | /* | |
1218 | * 'httpPost()' - Send a POST request to the server. | |
1219 | */ | |
1220 | ||
1221 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1222 | httpPost(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1223 | const char *uri) /* I - URI for post */ |
1224 | { | |
1225 | return (http_send(http, HTTP_POST, uri)); | |
1226 | } | |
1227 | ||
1228 | ||
1229 | /* | |
1230 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1231 | * |
1232 | * @private@ | |
ef416fc2 | 1233 | */ |
1234 | ||
1235 | int /* O - Number of bytes written */ | |
568fa3fa | 1236 | httpPrintf(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1237 | const char *format, /* I - printf-style format string */ |
1238 | ...) /* I - Additional args as needed */ | |
1239 | { | |
1240 | int bytes; /* Number of bytes to write */ | |
1241 | char buf[16384]; /* Buffer for formatted string */ | |
1242 | va_list ap; /* Variable argument pointer */ | |
1243 | ||
1244 | ||
1245 | DEBUG_printf(("httpPrintf(http=%p, format=\"%s\", ...)\n", http, format)); | |
1246 | ||
1247 | va_start(ap, format); | |
1248 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1249 | va_end(ap); | |
1250 | ||
1251 | DEBUG_printf(("httpPrintf: %s", buf)); | |
1252 | ||
d09495fa | 1253 | if (http->data_encoding == HTTP_ENCODE_FIELDS) |
1254 | return (httpWrite2(http, buf, bytes)); | |
1255 | else | |
ef416fc2 | 1256 | { |
d09495fa | 1257 | if (http->wused) |
1258 | { | |
1259 | DEBUG_puts(" flushing existing data..."); | |
ef416fc2 | 1260 | |
d09495fa | 1261 | if (httpFlushWrite(http) < 0) |
1262 | return (-1); | |
1263 | } | |
ef416fc2 | 1264 | |
d09495fa | 1265 | return (http_write(http, buf, bytes)); |
1266 | } | |
ef416fc2 | 1267 | } |
1268 | ||
1269 | ||
1270 | /* | |
1271 | * 'httpPut()' - Send a PUT request to the server. | |
1272 | */ | |
1273 | ||
1274 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1275 | httpPut(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1276 | const char *uri) /* I - URI to put */ |
1277 | { | |
1278 | return (http_send(http, HTTP_PUT, uri)); | |
1279 | } | |
1280 | ||
1281 | ||
1282 | /* | |
1283 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1284 | * |
1285 | * This function is deprecated. Use the httpRead2() function which can | |
1286 | * read more than 2GB of data. | |
1287 | * | |
1288 | * @deprecated@ | |
ef416fc2 | 1289 | */ |
1290 | ||
1291 | int /* O - Number of bytes read */ | |
568fa3fa | 1292 | httpRead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1293 | char *buffer, /* I - Buffer for data */ |
1294 | int length) /* I - Maximum number of bytes */ | |
1295 | { | |
a4d04587 | 1296 | return ((int)httpRead2(http, buffer, length)); |
1297 | } | |
1298 | ||
1299 | ||
1300 | /* | |
1301 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1302 | * |
426c6a59 | 1303 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 1304 | */ |
1305 | ||
1306 | ssize_t /* O - Number of bytes read */ | |
568fa3fa | 1307 | httpRead2(http_t *http, /* I - Connection to server */ |
a4d04587 | 1308 | char *buffer, /* I - Buffer for data */ |
1309 | size_t length) /* I - Maximum number of bytes */ | |
1310 | { | |
1311 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1312 | char len[32]; /* Length string */ |
1313 | ||
1314 | ||
ae71f5de | 1315 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT ")\n", |
a603edef | 1316 | http, buffer, CUPS_LLCAST length)); |
ef416fc2 | 1317 | |
1318 | if (http == NULL || buffer == NULL) | |
1319 | return (-1); | |
1320 | ||
1321 | http->activity = time(NULL); | |
1322 | ||
1323 | if (length <= 0) | |
1324 | return (0); | |
1325 | ||
1326 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1327 | http->data_remaining <= 0) | |
1328 | { | |
a4d04587 | 1329 | DEBUG_puts("httpRead2: Getting chunk length..."); |
ef416fc2 | 1330 | |
1331 | if (httpGets(len, sizeof(len), http) == NULL) | |
1332 | { | |
a4d04587 | 1333 | DEBUG_puts("httpRead2: Could not get length!"); |
ef416fc2 | 1334 | return (0); |
1335 | } | |
1336 | ||
1337 | http->data_remaining = strtoll(len, NULL, 16); | |
1338 | if (http->data_remaining < 0) | |
1339 | { | |
a4d04587 | 1340 | DEBUG_puts("httpRead2: Negative chunk length!"); |
ef416fc2 | 1341 | return (0); |
1342 | } | |
1343 | } | |
1344 | ||
a4d04587 | 1345 | DEBUG_printf(("httpRead2: data_remaining=" CUPS_LLFMT "\n", |
ef416fc2 | 1346 | CUPS_LLCAST http->data_remaining)); |
1347 | ||
1348 | if (http->data_remaining <= 0) | |
1349 | { | |
1350 | /* | |
1351 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1352 | * data, go idle... | |
1353 | */ | |
1354 | ||
1355 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1356 | httpGets(len, sizeof(len), http); | |
1357 | ||
1358 | if (http->state == HTTP_POST_RECV) | |
1359 | http->state ++; | |
1360 | else | |
1361 | http->state = HTTP_WAITING; | |
1362 | ||
1363 | /* | |
1364 | * Prevent future reads for this request... | |
1365 | */ | |
1366 | ||
1367 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1368 | ||
1369 | return (0); | |
1370 | } | |
b86bc4cf | 1371 | else if (length > (size_t)http->data_remaining) |
1372 | length = (size_t)http->data_remaining; | |
ef416fc2 | 1373 | |
1374 | if (http->used == 0 && length <= 256) | |
1375 | { | |
1376 | /* | |
1377 | * Buffer small reads for better performance... | |
1378 | */ | |
1379 | ||
ed486911 | 1380 | if (!http->blocking && !httpWait(http, 10000)) |
ef416fc2 | 1381 | return (0); |
1382 | ||
1383 | if (http->data_remaining > sizeof(http->buffer)) | |
1384 | bytes = sizeof(http->buffer); | |
1385 | else | |
1386 | bytes = http->data_remaining; | |
1387 | ||
1388 | #ifdef HAVE_SSL | |
1389 | if (http->tls) | |
1390 | bytes = http_read_ssl(http, http->buffer, bytes); | |
1391 | else | |
1392 | #endif /* HAVE_SSL */ | |
1393 | { | |
a4d04587 | 1394 | DEBUG_printf(("httpRead2: reading %d bytes from socket into buffer...\n", |
a603edef | 1395 | (int)bytes)); |
ef416fc2 | 1396 | |
1397 | bytes = recv(http->fd, http->buffer, bytes, 0); | |
1398 | ||
a4d04587 | 1399 | DEBUG_printf(("httpRead2: read %d bytes from socket into buffer...\n", |
a603edef | 1400 | (int)bytes)); |
ef416fc2 | 1401 | } |
1402 | ||
1403 | if (bytes > 0) | |
1404 | http->used = bytes; | |
1405 | else if (bytes < 0) | |
1406 | { | |
1407 | #ifdef WIN32 | |
1408 | http->error = WSAGetLastError(); | |
1409 | return (-1); | |
1410 | #else | |
1411 | if (errno != EINTR) | |
1412 | { | |
1413 | http->error = errno; | |
1414 | return (-1); | |
1415 | } | |
1416 | #endif /* WIN32 */ | |
1417 | } | |
1418 | else | |
1419 | { | |
1420 | http->error = EPIPE; | |
1421 | return (0); | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | if (http->used > 0) | |
1426 | { | |
b86bc4cf | 1427 | if (length > (size_t)http->used) |
1428 | length = (size_t)http->used; | |
ef416fc2 | 1429 | |
b86bc4cf | 1430 | bytes = (ssize_t)length; |
ef416fc2 | 1431 | |
a603edef MS |
1432 | DEBUG_printf(("httpRead2: grabbing %d bytes from input buffer...\n", |
1433 | (int)bytes)); | |
ef416fc2 | 1434 | |
1435 | memcpy(buffer, http->buffer, length); | |
b86bc4cf | 1436 | http->used -= (int)length; |
ef416fc2 | 1437 | |
1438 | if (http->used > 0) | |
1439 | memmove(http->buffer, http->buffer + length, http->used); | |
1440 | } | |
1441 | #ifdef HAVE_SSL | |
1442 | else if (http->tls) | |
1443 | { | |
ed486911 | 1444 | if (!http->blocking && !httpWait(http, 10000)) |
ef416fc2 | 1445 | return (0); |
1446 | ||
b86bc4cf | 1447 | bytes = (ssize_t)http_read_ssl(http, buffer, (int)length); |
ef416fc2 | 1448 | } |
1449 | #endif /* HAVE_SSL */ | |
1450 | else | |
1451 | { | |
ed486911 | 1452 | if (!http->blocking && !httpWait(http, 10000)) |
ef416fc2 | 1453 | return (0); |
1454 | ||
a603edef MS |
1455 | DEBUG_printf(("httpRead2: reading " CUPS_LLFMT " bytes from socket...\n", |
1456 | CUPS_LLCAST length)); | |
ef416fc2 | 1457 | |
b86bc4cf | 1458 | #ifdef WIN32 |
1459 | bytes = (ssize_t)recv(http->fd, buffer, (int)length, 0); | |
1460 | #else | |
ef416fc2 | 1461 | while ((bytes = recv(http->fd, buffer, length, 0)) < 0) |
1462 | if (errno != EINTR) | |
1463 | break; | |
b86bc4cf | 1464 | #endif /* WIN32 */ |
ef416fc2 | 1465 | |
a603edef MS |
1466 | DEBUG_printf(("httpRead2: read " CUPS_LLFMT " bytes from socket...\n", |
1467 | CUPS_LLCAST bytes)); | |
ef416fc2 | 1468 | } |
1469 | ||
1470 | if (bytes > 0) | |
1471 | { | |
1472 | http->data_remaining -= bytes; | |
1473 | ||
1474 | if (http->data_remaining <= INT_MAX) | |
1475 | http->_data_remaining = (int)http->data_remaining; | |
1476 | else | |
1477 | http->_data_remaining = INT_MAX; | |
1478 | } | |
1479 | else if (bytes < 0) | |
1480 | { | |
1481 | #ifdef WIN32 | |
1482 | http->error = WSAGetLastError(); | |
1483 | #else | |
1484 | if (errno == EINTR) | |
1485 | bytes = 0; | |
1486 | else | |
1487 | http->error = errno; | |
1488 | #endif /* WIN32 */ | |
1489 | } | |
1490 | else | |
1491 | { | |
1492 | http->error = EPIPE; | |
1493 | return (0); | |
1494 | } | |
1495 | ||
1496 | if (http->data_remaining == 0) | |
1497 | { | |
1498 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1499 | httpGets(len, sizeof(len), http); | |
1500 | ||
1501 | if (http->data_encoding != HTTP_ENCODE_CHUNKED) | |
1502 | { | |
1503 | if (http->state == HTTP_POST_RECV) | |
1504 | http->state ++; | |
1505 | else | |
1506 | http->state = HTTP_WAITING; | |
1507 | } | |
1508 | } | |
1509 | ||
1510 | #ifdef DEBUG | |
ae71f5de | 1511 | http_debug_hex("httpRead2", buffer, (int)bytes); |
ef416fc2 | 1512 | #endif /* DEBUG */ |
1513 | ||
1514 | return (bytes); | |
1515 | } | |
1516 | ||
1517 | ||
1518 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
1519 | /* | |
411affcf | 1520 | * '_httpReadCDSA()' - Read function for the CDSA library. |
ef416fc2 | 1521 | */ |
1522 | ||
1523 | OSStatus /* O - -1 on error, 0 on success */ | |
1524 | _httpReadCDSA( | |
1525 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1526 | void *data, /* I - Data buffer */ | |
1527 | size_t *dataLength) /* IO - Number of bytes */ | |
1528 | { | |
411affcf | 1529 | OSStatus result; /* Return value */ |
1530 | ssize_t bytes; /* Number of bytes read */ | |
1531 | http_t *http; /* HTTP connection */ | |
1532 | ||
1533 | ||
1534 | http = (http_t *)connection; | |
e53920b9 | 1535 | |
411affcf | 1536 | if (!http->blocking) |
1537 | { | |
1538 | /* | |
1539 | * Make sure we have data before we read... | |
1540 | */ | |
e53920b9 | 1541 | |
411affcf | 1542 | if (!http_wait(http, 10000, 0)) |
1543 | { | |
1544 | http->error = ETIMEDOUT; | |
1545 | return (-1); | |
1546 | } | |
1547 | } | |
ef416fc2 | 1548 | |
b423cd4c | 1549 | do |
411affcf | 1550 | { |
1551 | bytes = recv(http->fd, data, *dataLength, 0); | |
1552 | } | |
b423cd4c | 1553 | while (bytes == -1 && errno == EINTR); |
fa73b229 | 1554 | |
b423cd4c | 1555 | if (bytes == *dataLength) |
411affcf | 1556 | { |
b423cd4c | 1557 | result = 0; |
411affcf | 1558 | } |
b423cd4c | 1559 | else if (bytes > 0) |
1560 | { | |
1561 | *dataLength = bytes; | |
1562 | result = errSSLWouldBlock; | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | *dataLength = 0; | |
fa73b229 | 1567 | |
1568 | if (bytes == 0) | |
ed486911 | 1569 | result = errSSLClosedGraceful; |
b423cd4c | 1570 | else if (errno == EAGAIN) |
1571 | result = errSSLWouldBlock; | |
b423cd4c | 1572 | else |
ed486911 | 1573 | result = errSSLClosedAbort; |
ef416fc2 | 1574 | } |
b423cd4c | 1575 | |
411affcf | 1576 | return (result); |
ef416fc2 | 1577 | } |
1578 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
1579 | ||
1580 | ||
411affcf | 1581 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
1582 | /* | |
1583 | * '_httpReadGNUTLS()' - Read function for the GNU TLS library. | |
1584 | */ | |
1585 | ||
1586 | ssize_t /* O - Number of bytes read or -1 on error */ | |
1587 | _httpReadGNUTLS( | |
568fa3fa | 1588 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 1589 | void *data, /* I - Buffer */ |
1590 | size_t length) /* I - Number of bytes to read */ | |
1591 | { | |
1592 | http_t *http; /* HTTP connection */ | |
1593 | ||
1594 | ||
1595 | http = (http_t *)ptr; | |
1596 | ||
1597 | if (!http->blocking) | |
1598 | { | |
1599 | /* | |
1600 | * Make sure we have data before we read... | |
1601 | */ | |
1602 | ||
1603 | if (!http_wait(http, 10000, 0)) | |
1604 | { | |
1605 | http->error = ETIMEDOUT; | |
1606 | return (-1); | |
1607 | } | |
1608 | } | |
1609 | ||
1610 | return (recv(http->fd, data, length, 0)); | |
1611 | } | |
1612 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
1613 | ||
1614 | ||
ef416fc2 | 1615 | /* |
ecdc0628 | 1616 | * 'httpReconnect()' - Reconnect to a HTTP server. |
ef416fc2 | 1617 | */ |
1618 | ||
1619 | int /* O - 0 on success, non-zero on failure */ | |
568fa3fa | 1620 | httpReconnect(http_t *http) /* I - Connection to server */ |
ef416fc2 | 1621 | { |
1622 | http_addrlist_t *addr; /* Connected address */ | |
1ff0402e MS |
1623 | #ifdef DEBUG |
1624 | http_addrlist_t *current; /* Current address */ | |
1625 | char temp[256]; /* Temporary address string */ | |
1626 | #endif /* DEBUG */ | |
ef416fc2 | 1627 | |
1628 | ||
1629 | DEBUG_printf(("httpReconnect(http=%p)\n", http)); | |
1630 | ||
1631 | if (!http) | |
1632 | return (-1); | |
1633 | ||
1634 | #ifdef HAVE_SSL | |
1635 | if (http->tls) | |
1ff0402e MS |
1636 | { |
1637 | DEBUG_puts("httpReconnect: Shutting down SSL/TLS..."); | |
ef416fc2 | 1638 | http_shutdown_ssl(http); |
1ff0402e | 1639 | } |
ef416fc2 | 1640 | #endif /* HAVE_SSL */ |
1641 | ||
1642 | /* | |
1643 | * Close any previously open socket... | |
1644 | */ | |
1645 | ||
1646 | if (http->fd >= 0) | |
bd7854cb | 1647 | { |
1ff0402e MS |
1648 | DEBUG_printf(("httpReconnect: Closing socket %d...\n", http->fd)); |
1649 | ||
ef416fc2 | 1650 | #ifdef WIN32 |
1651 | closesocket(http->fd); | |
1652 | #else | |
1653 | close(http->fd); | |
1654 | #endif /* WIN32 */ | |
1655 | ||
1ff0402e MS |
1656 | usleep(100000); |
1657 | ||
bd7854cb | 1658 | http->fd = -1; |
1659 | } | |
1660 | ||
ef416fc2 | 1661 | /* |
1662 | * Connect to the server... | |
1663 | */ | |
1664 | ||
1ff0402e MS |
1665 | #ifdef DEBUG |
1666 | for (current = http->addrlist; current; current = current->next) | |
1667 | DEBUG_printf(("httpReconnect: Address %s:%d\n", | |
1668 | httpAddrString(&(current->addr), temp, sizeof(temp)), | |
1669 | _httpAddrPort(&(current->addr)))); | |
1670 | #endif /* DEBUG */ | |
1671 | ||
ef416fc2 | 1672 | if ((addr = httpAddrConnect(http->addrlist, &(http->fd))) == NULL) |
1673 | { | |
1674 | /* | |
1675 | * Unable to connect... | |
1676 | */ | |
1677 | ||
1678 | #ifdef WIN32 | |
1679 | http->error = WSAGetLastError(); | |
1680 | #else | |
1681 | http->error = errno; | |
1682 | #endif /* WIN32 */ | |
1683 | http->status = HTTP_ERROR; | |
1684 | ||
1ff0402e MS |
1685 | DEBUG_printf(("httpReconnect: httpAddrConnect failed: %s\n", |
1686 | strerror(http->error))); | |
1687 | ||
ef416fc2 | 1688 | return (-1); |
1689 | } | |
1690 | ||
1ff0402e MS |
1691 | DEBUG_printf(("httpReconnect: New socket=%d\n", http->fd)); |
1692 | ||
ef416fc2 | 1693 | http->hostaddr = &(addr->addr); |
1694 | http->error = 0; | |
1695 | http->status = HTTP_CONTINUE; | |
1696 | ||
1697 | #ifdef HAVE_SSL | |
1698 | if (http->encryption == HTTP_ENCRYPT_ALWAYS) | |
1699 | { | |
1700 | /* | |
1701 | * Always do encryption via SSL. | |
1702 | */ | |
1703 | ||
1704 | if (http_setup_ssl(http) != 0) | |
1705 | { | |
f7deaa1a | 1706 | # ifdef WIN32 |
ef416fc2 | 1707 | closesocket(http->fd); |
f7deaa1a | 1708 | # else |
ef416fc2 | 1709 | close(http->fd); |
f7deaa1a | 1710 | # endif /* WIN32 */ |
ef416fc2 | 1711 | |
1712 | return (-1); | |
1713 | } | |
1714 | } | |
1715 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED) | |
1716 | return (http_upgrade(http)); | |
1717 | #endif /* HAVE_SSL */ | |
1718 | ||
1ff0402e MS |
1719 | DEBUG_printf(("httpReconnect: Connected to %s:%d...\n", |
1720 | httpAddrString(http->hostaddr, temp, sizeof(temp)), | |
1721 | _httpAddrPort(http->hostaddr))); | |
1722 | ||
ef416fc2 | 1723 | return (0); |
1724 | } | |
1725 | ||
1726 | ||
355e94dc MS |
1727 | /* |
1728 | * 'httpSetAuthString()' - Set the current authorization string. | |
1729 | * | |
1730 | * This function just stores a copy of the current authorization string in | |
1731 | * the HTTP connection object. You must still call httpSetField() to set | |
1732 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
1733 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
1734 | * | |
426c6a59 | 1735 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
1736 | */ |
1737 | ||
1738 | void | |
568fa3fa | 1739 | httpSetAuthString(http_t *http, /* I - Connection to server */ |
355e94dc MS |
1740 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
1741 | const char *data) /* I - Auth data (NULL for none) */ | |
1742 | { | |
1743 | /* | |
1744 | * Range check input... | |
1745 | */ | |
1746 | ||
1747 | if (!http) | |
1748 | return; | |
1749 | ||
1750 | if (http->authstring && http->authstring != http->_authstring) | |
1751 | free(http->authstring); | |
1752 | ||
1753 | http->authstring = http->_authstring; | |
1754 | ||
1755 | if (scheme) | |
1756 | { | |
1757 | /* | |
1758 | * Set the current authorization string... | |
1759 | */ | |
1760 | ||
1761 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 1762 | char *temp; |
355e94dc MS |
1763 | |
1764 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
1765 | { |
1766 | if ((temp = malloc(len)) == NULL) | |
1767 | len = sizeof(http->_authstring); | |
1768 | else | |
1769 | http->authstring = temp; | |
1770 | } | |
355e94dc MS |
1771 | |
1772 | if (data) | |
1773 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
1774 | else | |
1775 | strlcpy(http->authstring, scheme, len); | |
1776 | } | |
1777 | else | |
1778 | { | |
1779 | /* | |
1780 | * Clear the current authorization string... | |
1781 | */ | |
1782 | ||
1783 | http->_authstring[0] = '\0'; | |
1784 | } | |
1785 | } | |
1786 | ||
1787 | ||
ef416fc2 | 1788 | /* |
1789 | * 'httpSetCookie()' - Set the cookie value(s)... | |
1790 | * | |
426c6a59 | 1791 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 1792 | */ |
1793 | ||
1794 | void | |
1795 | httpSetCookie(http_t *http, /* I - Connection */ | |
1796 | const char *cookie) /* I - Cookie string */ | |
1797 | { | |
1798 | if (!http) | |
1799 | return; | |
1800 | ||
1801 | if (http->cookie) | |
1802 | free(http->cookie); | |
1803 | ||
1804 | if (cookie) | |
1805 | http->cookie = strdup(cookie); | |
1806 | else | |
1807 | http->cookie = NULL; | |
1808 | } | |
1809 | ||
1810 | ||
b423cd4c | 1811 | /* |
1812 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
1813 | * | |
1814 | * Currently only HTTP_CONTINUE is supported for the "expect" argument. | |
1815 | * | |
426c6a59 | 1816 | * @since CUPS 1.2/Mac OS X 10.5@ |
b423cd4c | 1817 | */ |
1818 | ||
1819 | void | |
568fa3fa | 1820 | httpSetExpect(http_t *http, /* I - Connection to server */ |
b423cd4c | 1821 | http_status_t expect) /* I - HTTP status to expect (HTTP_CONTINUE) */ |
1822 | { | |
1823 | if (http) | |
1824 | http->expect = expect; | |
1825 | } | |
1826 | ||
1827 | ||
ef416fc2 | 1828 | /* |
1829 | * 'httpSetField()' - Set the value of an HTTP header. | |
1830 | */ | |
1831 | ||
1832 | void | |
568fa3fa | 1833 | httpSetField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1834 | http_field_t field, /* I - Field index */ |
1835 | const char *value) /* I - Value */ | |
1836 | { | |
1837 | if (http == NULL || | |
1838 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
1839 | field > HTTP_FIELD_WWW_AUTHENTICATE || | |
1840 | value == NULL) | |
1841 | return; | |
1842 | ||
1843 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
f7deaa1a | 1844 | |
1845 | /* | |
1846 | * Special case for Authorization: as its contents can be | |
1847 | * longer than HTTP_MAX_VALUE | |
1848 | */ | |
1849 | ||
1850 | if (field == HTTP_FIELD_AUTHORIZATION) | |
1851 | { | |
1852 | if (http->field_authorization) | |
1853 | free(http->field_authorization); | |
1854 | ||
1855 | http->field_authorization = strdup(value); | |
1856 | } | |
ef416fc2 | 1857 | } |
1858 | ||
1859 | ||
1860 | /* | |
1861 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
1862 | * | |
426c6a59 | 1863 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 1864 | */ |
1865 | ||
1866 | void | |
568fa3fa | 1867 | httpSetLength(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1868 | size_t length) /* I - Length (0 for chunked) */ |
1869 | { | |
1870 | if (!http) | |
1871 | return; | |
1872 | ||
1873 | if (!length) | |
1874 | { | |
1875 | strcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked"); | |
1876 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; | |
1877 | } | |
1878 | else | |
1879 | { | |
1880 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
1881 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
1882 | CUPS_LLFMT, CUPS_LLCAST length); | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | ||
1887 | /* | |
1888 | * 'httpTrace()' - Send an TRACE request to the server. | |
1889 | */ | |
1890 | ||
1891 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1892 | httpTrace(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1893 | const char *uri) /* I - URI for trace */ |
1894 | { | |
1895 | return (http_send(http, HTTP_TRACE, uri)); | |
1896 | } | |
1897 | ||
1898 | ||
1899 | /* | |
1900 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
1901 | */ | |
1902 | ||
1903 | http_status_t /* O - HTTP status */ | |
568fa3fa | 1904 | httpUpdate(http_t *http) /* I - Connection to server */ |
ef416fc2 | 1905 | { |
1906 | char line[32768], /* Line from connection... */ | |
1907 | *value; /* Pointer to value on line */ | |
1908 | http_field_t field; /* Field index */ | |
1909 | int major, minor, /* HTTP version numbers */ | |
1910 | status; /* Request status */ | |
1911 | ||
1912 | ||
1913 | DEBUG_printf(("httpUpdate(http=%p), state=%d\n", http, http->state)); | |
1914 | ||
1915 | /* | |
1916 | * Flush pending data, if any... | |
1917 | */ | |
1918 | ||
1919 | if (http->wused) | |
1920 | { | |
1921 | DEBUG_puts(" flushing buffer..."); | |
1922 | ||
1923 | if (httpFlushWrite(http) < 0) | |
1924 | return (HTTP_ERROR); | |
1925 | } | |
1926 | ||
1927 | /* | |
1928 | * If we haven't issued any commands, then there is nothing to "update"... | |
1929 | */ | |
1930 | ||
1931 | if (http->state == HTTP_WAITING) | |
1932 | return (HTTP_CONTINUE); | |
1933 | ||
1934 | /* | |
1935 | * Grab all of the lines we can from the connection... | |
1936 | */ | |
1937 | ||
1938 | while (httpGets(line, sizeof(line), http) != NULL) | |
1939 | { | |
1940 | DEBUG_printf(("httpUpdate: Got \"%s\"\n", line)); | |
1941 | ||
1942 | if (line[0] == '\0') | |
1943 | { | |
1944 | /* | |
1945 | * Blank line means the start of the data section (if any). Return | |
1946 | * the result code, too... | |
1947 | * | |
1948 | * If we get status 100 (HTTP_CONTINUE), then we *don't* change states. | |
1949 | * Instead, we just return HTTP_CONTINUE to the caller and keep on | |
1950 | * tryin'... | |
1951 | */ | |
1952 | ||
1953 | if (http->status == HTTP_CONTINUE) | |
1954 | return (http->status); | |
1955 | ||
1956 | if (http->status < HTTP_BAD_REQUEST) | |
1957 | http->digest_tries = 0; | |
1958 | ||
1959 | #ifdef HAVE_SSL | |
1960 | if (http->status == HTTP_SWITCHING_PROTOCOLS && !http->tls) | |
1961 | { | |
1962 | if (http_setup_ssl(http) != 0) | |
1963 | { | |
1964 | # ifdef WIN32 | |
1965 | closesocket(http->fd); | |
1966 | # else | |
1967 | close(http->fd); | |
1968 | # endif /* WIN32 */ | |
1969 | ||
1970 | return (HTTP_ERROR); | |
1971 | } | |
1972 | ||
1973 | return (HTTP_CONTINUE); | |
1974 | } | |
1975 | #endif /* HAVE_SSL */ | |
1976 | ||
1977 | httpGetLength2(http); | |
1978 | ||
1979 | switch (http->state) | |
1980 | { | |
1981 | case HTTP_GET : | |
1982 | case HTTP_POST : | |
1983 | case HTTP_POST_RECV : | |
1984 | case HTTP_PUT : | |
1985 | http->state ++; | |
1986 | case HTTP_POST_SEND : | |
e1d6a774 | 1987 | case HTTP_HEAD : |
ef416fc2 | 1988 | break; |
1989 | ||
1990 | default : | |
1991 | http->state = HTTP_WAITING; | |
1992 | break; | |
1993 | } | |
1994 | ||
1995 | return (http->status); | |
1996 | } | |
1997 | else if (strncmp(line, "HTTP/", 5) == 0) | |
1998 | { | |
1999 | /* | |
2000 | * Got the beginning of a response... | |
2001 | */ | |
2002 | ||
2003 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &status) != 3) | |
2004 | return (HTTP_ERROR); | |
2005 | ||
2006 | http->version = (http_version_t)(major * 100 + minor); | |
2007 | http->status = (http_status_t)status; | |
2008 | } | |
2009 | else if ((value = strchr(line, ':')) != NULL) | |
2010 | { | |
2011 | /* | |
2012 | * Got a value... | |
2013 | */ | |
2014 | ||
2015 | *value++ = '\0'; | |
2016 | while (isspace(*value & 255)) | |
2017 | value ++; | |
2018 | ||
2019 | /* | |
2020 | * Be tolerants of servers that send unknown attribute fields... | |
2021 | */ | |
2022 | ||
2023 | if (!strcasecmp(line, "expect")) | |
2024 | { | |
2025 | /* | |
2026 | * "Expect: 100-continue" or similar... | |
2027 | */ | |
2028 | ||
2029 | http->expect = (http_status_t)atoi(value); | |
2030 | } | |
2031 | else if (!strcasecmp(line, "cookie")) | |
2032 | { | |
2033 | /* | |
2034 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... | |
2035 | */ | |
2036 | ||
2037 | httpSetCookie(http, value); | |
2038 | } | |
2039 | else if ((field = http_field(line)) == HTTP_FIELD_UNKNOWN) | |
2040 | { | |
2041 | DEBUG_printf(("httpUpdate: unknown field %s seen!\n", line)); | |
2042 | continue; | |
2043 | } | |
2044 | else | |
2045 | httpSetField(http, field, value); | |
2046 | } | |
2047 | else | |
2048 | { | |
2049 | http->status = HTTP_ERROR; | |
2050 | return (HTTP_ERROR); | |
2051 | } | |
2052 | } | |
2053 | ||
2054 | /* | |
2055 | * See if there was an error... | |
2056 | */ | |
2057 | ||
2058 | if (http->error == EPIPE && http->status > HTTP_CONTINUE) | |
2059 | return (http->status); | |
2060 | ||
2061 | if (http->error) | |
2062 | { | |
2063 | DEBUG_printf(("httpUpdate: socket error %d - %s\n", http->error, | |
2064 | strerror(http->error))); | |
2065 | http->status = HTTP_ERROR; | |
2066 | return (HTTP_ERROR); | |
2067 | } | |
2068 | ||
2069 | /* | |
2070 | * If we haven't already returned, then there is nothing new... | |
2071 | */ | |
2072 | ||
2073 | return (HTTP_CONTINUE); | |
2074 | } | |
2075 | ||
2076 | ||
2077 | /* | |
2078 | * 'httpWait()' - Wait for data available on a connection. | |
2079 | * | |
426c6a59 | 2080 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 2081 | */ |
2082 | ||
2083 | int /* O - 1 if data is available, 0 otherwise */ | |
568fa3fa | 2084 | httpWait(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2085 | int msec) /* I - Milliseconds to wait */ |
2086 | { | |
2087 | /* | |
2088 | * First see if there is data in the buffer... | |
2089 | */ | |
2090 | ||
2091 | if (http == NULL) | |
2092 | return (0); | |
2093 | ||
2094 | if (http->used) | |
2095 | return (1); | |
2096 | ||
8ca02f3c | 2097 | /* |
2098 | * Flush pending data, if any... | |
2099 | */ | |
2100 | ||
2101 | if (http->wused) | |
2102 | { | |
2103 | if (httpFlushWrite(http) < 0) | |
2104 | return (0); | |
2105 | } | |
2106 | ||
ef416fc2 | 2107 | /* |
2108 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
2109 | */ | |
2110 | ||
411affcf | 2111 | return (http_wait(http, msec, 1)); |
ef416fc2 | 2112 | } |
2113 | ||
2114 | ||
2115 | /* | |
2116 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 2117 | * |
2118 | * This function is deprecated. Use the httpWrite2() function which can | |
2119 | * write more than 2GB of data. | |
2120 | * | |
2121 | * @deprecated@ | |
ef416fc2 | 2122 | */ |
2123 | ||
2124 | int /* O - Number of bytes written */ | |
568fa3fa | 2125 | httpWrite(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2126 | const char *buffer, /* I - Buffer for data */ |
2127 | int length) /* I - Number of bytes to write */ | |
2128 | { | |
a4d04587 | 2129 | return ((int)httpWrite2(http, buffer, length)); |
2130 | } | |
2131 | ||
2132 | ||
2133 | /* | |
2134 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 2135 | * |
426c6a59 | 2136 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 2137 | */ |
2138 | ||
2139 | ssize_t /* O - Number of bytes written */ | |
568fa3fa | 2140 | httpWrite2(http_t *http, /* I - Connection to server */ |
a4d04587 | 2141 | const char *buffer, /* I - Buffer for data */ |
2142 | size_t length) /* I - Number of bytes to write */ | |
2143 | { | |
2144 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 2145 | |
2146 | ||
ae71f5de | 2147 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")\n", http, |
a603edef | 2148 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 2149 | |
2150 | /* | |
2151 | * Range check input... | |
2152 | */ | |
2153 | ||
2154 | if (http == NULL || buffer == NULL) | |
2155 | return (-1); | |
2156 | ||
2157 | /* | |
2158 | * Mark activity on the connection... | |
2159 | */ | |
2160 | ||
2161 | http->activity = time(NULL); | |
2162 | ||
2163 | /* | |
2164 | * Buffer small writes for better performance... | |
2165 | */ | |
2166 | ||
2167 | if (length > 0) | |
2168 | { | |
2169 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
2170 | { | |
ae71f5de MS |
2171 | DEBUG_printf(("httpWrite2: Flushing buffer (wused=%d, length=" |
2172 | CUPS_LLFMT ")\n", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 2173 | |
2174 | httpFlushWrite(http); | |
2175 | } | |
2176 | ||
07725fee | 2177 | if ((length + http->wused) <= sizeof(http->wbuffer)) |
ef416fc2 | 2178 | { |
2179 | /* | |
2180 | * Write to buffer... | |
2181 | */ | |
2182 | ||
ae71f5de | 2183 | DEBUG_printf(("httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...\n", |
a603edef | 2184 | CUPS_LLCAST length)); |
ef416fc2 | 2185 | |
2186 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 2187 | http->wused += (int)length; |
2188 | bytes = (ssize_t)length; | |
ef416fc2 | 2189 | } |
2190 | else | |
2191 | { | |
2192 | /* | |
2193 | * Otherwise write the data directly... | |
2194 | */ | |
2195 | ||
ae71f5de | 2196 | DEBUG_printf(("httpWrite2: Writing " CUPS_LLFMT " bytes to socket...\n", |
a603edef | 2197 | CUPS_LLCAST length)); |
ef416fc2 | 2198 | |
2199 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
b86bc4cf | 2200 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 2201 | else |
b86bc4cf | 2202 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 2203 | |
ae71f5de MS |
2204 | DEBUG_printf(("httpWrite2: Wrote " CUPS_LLFMT " bytes...\n", |
2205 | CUPS_LLCAST bytes)); | |
ef416fc2 | 2206 | } |
2207 | ||
2208 | if (http->data_encoding == HTTP_ENCODE_LENGTH) | |
2209 | http->data_remaining -= bytes; | |
2210 | } | |
2211 | else | |
2212 | bytes = 0; | |
2213 | ||
2214 | /* | |
2215 | * Handle end-of-request processing... | |
2216 | */ | |
2217 | ||
2218 | if ((http->data_encoding == HTTP_ENCODE_CHUNKED && length == 0) || | |
2219 | (http->data_encoding == HTTP_ENCODE_LENGTH && http->data_remaining == 0)) | |
2220 | { | |
2221 | /* | |
2222 | * Finished with the transfer; unless we are sending POST or PUT | |
2223 | * data, go idle... | |
2224 | */ | |
2225 | ||
2226 | DEBUG_puts("httpWrite: changing states..."); | |
2227 | ||
2228 | if (http->wused) | |
2229 | httpFlushWrite(http); | |
2230 | ||
2231 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
2232 | { | |
2233 | /* | |
2234 | * Send a 0-length chunk at the end of the request... | |
2235 | */ | |
2236 | ||
2237 | http_write(http, "0\r\n\r\n", 5); | |
2238 | ||
2239 | /* | |
2240 | * Reset the data state... | |
2241 | */ | |
2242 | ||
2243 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
2244 | http->data_remaining = 0; | |
2245 | } | |
2246 | ||
2247 | if (http->state == HTTP_POST_RECV) | |
2248 | http->state ++; | |
2249 | else if (http->state == HTTP_PUT_RECV) | |
2250 | http->state = HTTP_STATUS; | |
2251 | else | |
2252 | http->state = HTTP_WAITING; | |
2253 | } | |
2254 | ||
2255 | return (bytes); | |
2256 | } | |
2257 | ||
2258 | ||
2259 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
2260 | /* | |
411affcf | 2261 | * '_httpWriteCDSA()' - Write function for the CDSA library. |
ef416fc2 | 2262 | */ |
2263 | ||
2264 | OSStatus /* O - -1 on error, 0 on success */ | |
2265 | _httpWriteCDSA( | |
2266 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2267 | const void *data, /* I - Data buffer */ | |
2268 | size_t *dataLength) /* IO - Number of bytes */ | |
2269 | { | |
411affcf | 2270 | OSStatus result; /* Return value */ |
2271 | ssize_t bytes; /* Number of bytes read */ | |
2272 | http_t *http; /* HTTP connection */ | |
e53920b9 | 2273 | |
2274 | ||
411affcf | 2275 | http = (http_t *)connection; |
ef416fc2 | 2276 | |
b423cd4c | 2277 | do |
411affcf | 2278 | { |
2279 | bytes = write(http->fd, data, *dataLength); | |
2280 | } | |
b423cd4c | 2281 | while (bytes == -1 && errno == EINTR); |
fa73b229 | 2282 | |
b423cd4c | 2283 | if (bytes == *dataLength) |
411affcf | 2284 | { |
b423cd4c | 2285 | result = 0; |
411affcf | 2286 | } |
b423cd4c | 2287 | else if (bytes >= 0) |
2288 | { | |
2289 | *dataLength = bytes; | |
2290 | result = errSSLWouldBlock; | |
2291 | } | |
2292 | else | |
2293 | { | |
2294 | *dataLength = 0; | |
2295 | ||
fa73b229 | 2296 | if (errno == EAGAIN) |
b423cd4c | 2297 | result = errSSLWouldBlock; |
b423cd4c | 2298 | else |
ed486911 | 2299 | result = errSSLClosedAbort; |
ef416fc2 | 2300 | } |
b423cd4c | 2301 | |
411affcf | 2302 | return (result); |
ef416fc2 | 2303 | } |
2304 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
2305 | ||
2306 | ||
411affcf | 2307 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
2308 | /* | |
2309 | * '_httpWriteGNUTLS()' - Write function for the GNU TLS library. | |
2310 | */ | |
2311 | ||
2312 | ssize_t /* O - Number of bytes written or -1 on error */ | |
2313 | _httpWriteGNUTLS( | |
568fa3fa | 2314 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 2315 | const void *data, /* I - Data buffer */ |
2316 | size_t length) /* I - Number of bytes to write */ | |
2317 | { | |
2318 | return (send(((http_t *)ptr)->fd, data, length, 0)); | |
2319 | } | |
2320 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
2321 | ||
2322 | ||
2323 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
2324 | /* | |
2325 | * 'http_bio_ctrl()' - Control the HTTP connection. | |
2326 | */ | |
2327 | ||
2328 | static long /* O - Result/data */ | |
2329 | http_bio_ctrl(BIO *h, /* I - BIO data */ | |
2330 | int cmd, /* I - Control command */ | |
2331 | long arg1, /* I - First argument */ | |
2332 | void *arg2) /* I - Second argument */ | |
2333 | { | |
2334 | switch (cmd) | |
2335 | { | |
2336 | default : | |
2337 | return (0); | |
2338 | ||
2339 | case BIO_CTRL_RESET : | |
2340 | h->ptr = NULL; | |
2341 | return (0); | |
2342 | ||
2343 | case BIO_C_SET_FILE_PTR : | |
2344 | h->ptr = arg2; | |
2345 | h->init = 1; | |
2346 | return (1); | |
2347 | ||
2348 | case BIO_C_GET_FILE_PTR : | |
2349 | if (arg2) | |
2350 | { | |
2351 | *((void **)arg2) = h->ptr; | |
2352 | return (1); | |
2353 | } | |
2354 | else | |
2355 | return (0); | |
2356 | ||
2357 | case BIO_CTRL_DUP : | |
2358 | case BIO_CTRL_FLUSH : | |
2359 | return (1); | |
2360 | } | |
2361 | } | |
2362 | ||
2363 | ||
2364 | /* | |
2365 | * 'http_bio_free()' - Free OpenSSL data. | |
2366 | */ | |
2367 | ||
2368 | static int /* O - 1 on success, 0 on failure */ | |
2369 | http_bio_free(BIO *h) /* I - BIO data */ | |
2370 | { | |
2371 | if (!h) | |
2372 | return (0); | |
2373 | ||
2374 | if (h->shutdown) | |
2375 | { | |
2376 | h->init = 0; | |
2377 | h->flags = 0; | |
2378 | } | |
2379 | ||
2380 | return (1); | |
2381 | } | |
2382 | ||
2383 | ||
2384 | /* | |
2385 | * 'http_bio_new()' - Initialize an OpenSSL BIO structure. | |
2386 | */ | |
2387 | ||
2388 | static int /* O - 1 on success, 0 on failure */ | |
2389 | http_bio_new(BIO *h) /* I - BIO data */ | |
2390 | { | |
2391 | if (!h) | |
2392 | return (0); | |
2393 | ||
2394 | h->init = 0; | |
2395 | h->num = 0; | |
2396 | h->ptr = NULL; | |
2397 | h->flags = 0; | |
2398 | ||
2399 | return (1); | |
2400 | } | |
2401 | ||
2402 | ||
2403 | /* | |
2404 | * 'http_bio_puts()' - Send a string for OpenSSL. | |
2405 | */ | |
2406 | ||
2407 | static int /* O - Bytes written */ | |
2408 | http_bio_puts(BIO *h, /* I - BIO data */ | |
2409 | const char *str) /* I - String to write */ | |
2410 | { | |
b86bc4cf | 2411 | #ifdef WIN32 |
2412 | return (send(((http_t *)h->ptr)->fd, str, (int)strlen(str), 0)); | |
2413 | #else | |
411affcf | 2414 | return (send(((http_t *)h->ptr)->fd, str, strlen(str), 0)); |
b86bc4cf | 2415 | #endif /* WIN32 */ |
411affcf | 2416 | } |
2417 | ||
2418 | ||
2419 | /* | |
2420 | * 'http_bio_read()' - Read data for OpenSSL. | |
2421 | */ | |
2422 | ||
2423 | static int /* O - Bytes read */ | |
2424 | http_bio_read(BIO *h, /* I - BIO data */ | |
2425 | char *buf, /* I - Buffer */ | |
2426 | int size) /* I - Number of bytes to read */ | |
2427 | { | |
2428 | http_t *http; /* HTTP connection */ | |
2429 | ||
2430 | ||
2431 | http = (http_t *)h->ptr; | |
2432 | ||
2433 | if (!http->blocking) | |
2434 | { | |
2435 | /* | |
2436 | * Make sure we have data before we read... | |
2437 | */ | |
2438 | ||
2439 | if (!http_wait(http, 10000, 0)) | |
2440 | { | |
b86bc4cf | 2441 | #ifdef WIN32 |
2442 | http->error = WSAETIMEDOUT; | |
2443 | #else | |
411affcf | 2444 | http->error = ETIMEDOUT; |
b86bc4cf | 2445 | #endif /* WIN32 */ |
2446 | ||
411affcf | 2447 | return (-1); |
2448 | } | |
2449 | } | |
2450 | ||
2451 | return (recv(http->fd, buf, size, 0)); | |
2452 | } | |
2453 | ||
2454 | ||
2455 | /* | |
2456 | * 'http_bio_write()' - Write data for OpenSSL. | |
2457 | */ | |
2458 | ||
2459 | static int /* O - Bytes written */ | |
2460 | http_bio_write(BIO *h, /* I - BIO data */ | |
2461 | const char *buf, /* I - Buffer to write */ | |
2462 | int num) /* I - Number of bytes to write */ | |
2463 | { | |
2464 | return (send(((http_t *)h->ptr)->fd, buf, num, 0)); | |
2465 | } | |
2466 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
2467 | ||
2468 | ||
ae71f5de MS |
2469 | #ifdef DEBUG |
2470 | /* | |
2471 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
2472 | */ | |
2473 | ||
2474 | static void | |
2475 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
2476 | const char *buffer, /* I - Buffer to dump */ | |
2477 | int bytes) /* I - Bytes to dump */ | |
2478 | { | |
2479 | int i, j, /* Looping vars */ | |
2480 | ch; /* Current character */ | |
2481 | char line[255], /* Line buffer */ | |
2482 | *start, /* Start of line after prefix */ | |
2483 | *ptr; /* Pointer into line */ | |
2484 | ||
2485 | ||
4509bb49 | 2486 | if (_cups_debug_fd < 0) |
dd1abb6b MS |
2487 | return; |
2488 | ||
ae71f5de MS |
2489 | DEBUG_printf(("%s: %d bytes:\n", prefix, bytes)); |
2490 | ||
2491 | snprintf(line, sizeof(line), "%s: ", prefix); | |
2492 | start = line + strlen(line); | |
2493 | ||
2494 | for (i = 0; i < bytes; i += 16) | |
2495 | { | |
2496 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
2497 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
2498 | ||
2499 | while (j < 16) | |
2500 | { | |
2501 | strcpy(ptr, " "); | |
2502 | ptr += 2; | |
2503 | j ++; | |
2504 | } | |
2505 | ||
2506 | strcpy(ptr, " "); | |
2507 | ptr += 2; | |
2508 | ||
2509 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
2510 | { | |
2511 | ch = buffer[i + j] & 255; | |
2512 | ||
2513 | if (ch < ' ' || ch >= 127) | |
2514 | ch = '.'; | |
2515 | ||
2516 | *ptr++ = ch; | |
2517 | } | |
2518 | ||
2519 | *ptr = '\0'; | |
2520 | DEBUG_puts(line); | |
2521 | } | |
2522 | } | |
2523 | #endif /* DEBUG */ | |
2524 | ||
2525 | ||
ef416fc2 | 2526 | /* |
2527 | * 'http_field()' - Return the field index for a field name. | |
2528 | */ | |
2529 | ||
ae71f5de MS |
2530 | static http_field_t /* O - Field index */ |
2531 | http_field(const char *name) /* I - String name */ | |
ef416fc2 | 2532 | { |
ae71f5de | 2533 | int i; /* Looping var */ |
ef416fc2 | 2534 | |
2535 | ||
2536 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
2537 | if (strcasecmp(name, http_fields[i]) == 0) | |
2538 | return ((http_field_t)i); | |
2539 | ||
2540 | return (HTTP_FIELD_UNKNOWN); | |
2541 | } | |
2542 | ||
2543 | ||
2544 | #ifdef HAVE_SSL | |
2545 | /* | |
2546 | * 'http_read_ssl()' - Read from a SSL/TLS connection. | |
2547 | */ | |
2548 | ||
2549 | static int /* O - Bytes read */ | |
568fa3fa | 2550 | http_read_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2551 | char *buf, /* I - Buffer to store data */ |
2552 | int len) /* I - Length of buffer */ | |
2553 | { | |
2554 | # if defined(HAVE_LIBSSL) | |
2555 | return (SSL_read((SSL *)(http->tls), buf, len)); | |
2556 | ||
2557 | # elif defined(HAVE_GNUTLS) | |
2558 | return (gnutls_record_recv(((http_tls_t *)(http->tls))->session, buf, len)); | |
2559 | ||
2560 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 2561 | int result; /* Return value */ |
ef416fc2 | 2562 | OSStatus error; /* Error info */ |
2563 | size_t processed; /* Number of bytes processed */ | |
2564 | ||
2565 | ||
89d46774 | 2566 | error = SSLRead(((http_tls_t *)http->tls)->session, buf, len, &processed); |
ef416fc2 | 2567 | |
fa73b229 | 2568 | switch (error) |
ef416fc2 | 2569 | { |
fa73b229 | 2570 | case 0 : |
2571 | result = (int)processed; | |
2572 | break; | |
2573 | case errSSLClosedGraceful : | |
2574 | result = 0; | |
2575 | break; | |
2576 | case errSSLWouldBlock : | |
b423cd4c | 2577 | if (processed) |
2578 | result = (int)processed; | |
2579 | else | |
2580 | { | |
2581 | result = -1; | |
2582 | errno = EINTR; | |
2583 | } | |
fa73b229 | 2584 | break; |
2585 | default : | |
2586 | errno = EPIPE; | |
2587 | result = -1; | |
2588 | break; | |
ef416fc2 | 2589 | } |
fa73b229 | 2590 | |
2591 | return (result); | |
ef416fc2 | 2592 | # endif /* HAVE_LIBSSL */ |
2593 | } | |
2594 | #endif /* HAVE_SSL */ | |
2595 | ||
2596 | ||
2597 | /* | |
2598 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
2599 | */ | |
2600 | ||
2601 | static int /* O - 0 on success, non-zero on error */ | |
568fa3fa | 2602 | http_send(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2603 | http_state_t request, /* I - Request code */ |
2604 | const char *uri) /* I - URI */ | |
2605 | { | |
2606 | int i; /* Looping var */ | |
839a51c8 | 2607 | char buf[1024]; /* Encoded URI buffer */ |
ef416fc2 | 2608 | static const char * const codes[] = |
2609 | { /* Request code strings */ | |
2610 | NULL, | |
2611 | "OPTIONS", | |
2612 | "GET", | |
2613 | NULL, | |
2614 | "HEAD", | |
2615 | "POST", | |
2616 | NULL, | |
2617 | NULL, | |
2618 | "PUT", | |
2619 | NULL, | |
2620 | "DELETE", | |
2621 | "TRACE", | |
2622 | "CLOSE" | |
2623 | }; | |
ef416fc2 | 2624 | |
2625 | ||
2626 | DEBUG_printf(("http_send(http=%p, request=HTTP_%s, uri=\"%s\")\n", | |
2627 | http, codes[request], uri)); | |
2628 | ||
2629 | if (http == NULL || uri == NULL) | |
2630 | return (-1); | |
2631 | ||
2632 | /* | |
2633 | * Set the User-Agent field if it isn't already... | |
2634 | */ | |
2635 | ||
2636 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
2637 | httpSetField(http, HTTP_FIELD_USER_AGENT, CUPS_MINIMAL); | |
2638 | ||
2639 | /* | |
2640 | * Encode the URI as needed... | |
2641 | */ | |
2642 | ||
839a51c8 | 2643 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 2644 | |
2645 | /* | |
2646 | * See if we had an error the last time around; if so, reconnect... | |
2647 | */ | |
2648 | ||
2649 | if (http->status == HTTP_ERROR || http->status >= HTTP_BAD_REQUEST) | |
fa73b229 | 2650 | if (httpReconnect(http)) |
2651 | return (-1); | |
ef416fc2 | 2652 | |
d09495fa | 2653 | /* |
2654 | * Flush any written data that is pending... | |
2655 | */ | |
2656 | ||
2657 | if (http->wused) | |
2658 | httpFlushWrite(http); | |
2659 | ||
ef416fc2 | 2660 | /* |
2661 | * Send the request header... | |
2662 | */ | |
2663 | ||
d09495fa | 2664 | http->state = request; |
2665 | http->data_encoding = HTTP_ENCODE_FIELDS; | |
2666 | ||
ef416fc2 | 2667 | if (request == HTTP_POST || request == HTTP_PUT) |
2668 | http->state ++; | |
2669 | ||
2670 | http->status = HTTP_CONTINUE; | |
2671 | ||
2672 | #ifdef HAVE_SSL | |
2673 | if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
2674 | { | |
2675 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
2676 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.0,SSL/2.0,SSL/3.0"); | |
2677 | } | |
2678 | #endif /* HAVE_SSL */ | |
2679 | ||
2680 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
2681 | { | |
2682 | http->status = HTTP_ERROR; | |
2683 | return (-1); | |
2684 | } | |
2685 | ||
2686 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
2687 | if (http->fields[i][0] != '\0') | |
2688 | { | |
ae71f5de MS |
2689 | DEBUG_printf(("http_send: %s: %s\n", http_fields[i], |
2690 | httpGetField(http, i))); | |
ef416fc2 | 2691 | |
f7deaa1a | 2692 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], |
2693 | httpGetField(http, i)) < 1) | |
ef416fc2 | 2694 | { |
2695 | http->status = HTTP_ERROR; | |
2696 | return (-1); | |
2697 | } | |
2698 | } | |
2699 | ||
2700 | if (http->cookie) | |
2701 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
2702 | { | |
2703 | http->status = HTTP_ERROR; | |
2704 | return (-1); | |
2705 | } | |
2706 | ||
b423cd4c | 2707 | if (http->expect == HTTP_CONTINUE && |
2708 | (http->state == HTTP_POST_RECV || http->state == HTTP_PUT_RECV)) | |
2709 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) | |
2710 | { | |
2711 | http->status = HTTP_ERROR; | |
2712 | return (-1); | |
2713 | } | |
2714 | ||
ef416fc2 | 2715 | if (httpPrintf(http, "\r\n") < 1) |
2716 | { | |
2717 | http->status = HTTP_ERROR; | |
2718 | return (-1); | |
2719 | } | |
2720 | ||
d09495fa | 2721 | httpFlushWrite(http); |
ef416fc2 | 2722 | httpGetLength2(http); |
2723 | httpClearFields(http); | |
2724 | ||
f7deaa1a | 2725 | /* |
b94498cf | 2726 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 2727 | */ |
2728 | ||
bc44d920 | 2729 | if (http->field_authorization && http->authstring && |
b94498cf | 2730 | (!strncmp(http->authstring, "Negotiate", 9) || |
2731 | !strncmp(http->authstring, "AuthRef", 7))) | |
f7deaa1a | 2732 | { |
2733 | http->_authstring[0] = '\0'; | |
2734 | ||
2735 | if (http->authstring != http->_authstring) | |
2736 | free(http->authstring); | |
2737 | ||
2738 | http->authstring = http->_authstring; | |
2739 | } | |
2740 | ||
ef416fc2 | 2741 | return (0); |
2742 | } | |
2743 | ||
2744 | ||
2745 | #ifdef HAVE_SSL | |
2746 | /* | |
2747 | * 'http_setup_ssl()' - Set up SSL/TLS support on a connection. | |
2748 | */ | |
2749 | ||
2750 | static int /* O - Status of connection */ | |
568fa3fa | 2751 | http_setup_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 2752 | { |
2753 | # ifdef HAVE_LIBSSL | |
89d46774 | 2754 | SSL_CTX *context; /* Context for encryption */ |
2755 | SSL *conn; /* Connection for encryption */ | |
411affcf | 2756 | BIO *bio; /* BIO data */ |
ef416fc2 | 2757 | # elif defined(HAVE_GNUTLS) |
89d46774 | 2758 | http_tls_t *conn; /* TLS session object */ |
ef416fc2 | 2759 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 2760 | /* TLS credentials */ |
ef416fc2 | 2761 | # elif defined(HAVE_CDSASSL) |
89d46774 | 2762 | OSStatus error; /* Error code */ |
2763 | http_tls_t *conn; /* CDSA connection information */ | |
ef416fc2 | 2764 | # endif /* HAVE_LIBSSL */ |
2765 | ||
2766 | ||
2767 | DEBUG_printf(("http_setup_ssl(http=%p)\n", http)); | |
2768 | ||
2769 | # ifdef HAVE_LIBSSL | |
2770 | context = SSL_CTX_new(SSLv23_client_method()); | |
2771 | ||
2772 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
2773 | ||
411affcf | 2774 | bio = BIO_new(_httpBIOMethods()); |
2775 | BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)http); | |
2776 | ||
ef416fc2 | 2777 | conn = SSL_new(context); |
411affcf | 2778 | SSL_set_bio(conn, bio, bio); |
ef416fc2 | 2779 | |
ef416fc2 | 2780 | if (SSL_connect(conn) != 1) |
2781 | { | |
2782 | # ifdef DEBUG | |
2783 | unsigned long error; /* Error code */ | |
2784 | ||
2785 | while ((error = ERR_get_error()) != 0) | |
2786 | printf("http_setup_ssl: %s\n", ERR_error_string(error, NULL)); | |
2787 | # endif /* DEBUG */ | |
2788 | ||
2789 | SSL_CTX_free(context); | |
2790 | SSL_free(conn); | |
2791 | ||
2792 | # ifdef WIN32 | |
2793 | http->error = WSAGetLastError(); | |
2794 | # else | |
2795 | http->error = errno; | |
2796 | # endif /* WIN32 */ | |
2797 | http->status = HTTP_ERROR; | |
2798 | ||
2799 | return (HTTP_ERROR); | |
2800 | } | |
2801 | ||
2802 | # elif defined(HAVE_GNUTLS) | |
89d46774 | 2803 | if ((conn = (http_tls_t *)malloc(sizeof(http_tls_t))) == NULL) |
ef416fc2 | 2804 | { |
2805 | http->error = errno; | |
2806 | http->status = HTTP_ERROR; | |
2807 | ||
2808 | return (-1); | |
2809 | } | |
2810 | ||
2811 | credentials = (gnutls_certificate_client_credentials *) | |
2812 | malloc(sizeof(gnutls_certificate_client_credentials)); | |
2813 | if (credentials == NULL) | |
2814 | { | |
2815 | free(conn); | |
2816 | ||
2817 | http->error = errno; | |
2818 | http->status = HTTP_ERROR; | |
2819 | ||
2820 | return (-1); | |
2821 | } | |
2822 | ||
2823 | gnutls_certificate_allocate_credentials(credentials); | |
2824 | ||
2825 | gnutls_init(&(conn->session), GNUTLS_CLIENT); | |
2826 | gnutls_set_default_priority(conn->session); | |
2827 | gnutls_credentials_set(conn->session, GNUTLS_CRD_CERTIFICATE, *credentials); | |
411affcf | 2828 | gnutls_transport_set_ptr(conn->session, (gnutls_transport_ptr)http); |
2829 | gnutls_transport_set_pull_function(conn->session, _httpReadGNUTLS); | |
2830 | gnutls_transport_set_push_function(conn->session, _httpWriteGNUTLS); | |
ef416fc2 | 2831 | |
2832 | if ((gnutls_handshake(conn->session)) != GNUTLS_E_SUCCESS) | |
2833 | { | |
2834 | http->error = errno; | |
2835 | http->status = HTTP_ERROR; | |
2836 | ||
2837 | return (-1); | |
2838 | } | |
2839 | ||
2840 | conn->credentials = credentials; | |
2841 | ||
2842 | # elif defined(HAVE_CDSASSL) | |
89d46774 | 2843 | conn = (http_tls_t *)calloc(1, sizeof(http_tls_t)); |
e53920b9 | 2844 | |
89d46774 | 2845 | if (conn == NULL) |
2846 | return (-1); | |
e53920b9 | 2847 | |
89d46774 | 2848 | if ((error = SSLNewContext(false, &conn->session))) |
e53920b9 | 2849 | { |
89d46774 | 2850 | http->error = error; |
2851 | http->status = HTTP_ERROR; | |
e53920b9 | 2852 | |
89d46774 | 2853 | free(conn); |
2854 | return (-1); | |
e53920b9 | 2855 | } |
ef416fc2 | 2856 | |
89d46774 | 2857 | /* |
2858 | * Use a union to resolve warnings about int/pointer size mismatches... | |
2859 | */ | |
2860 | ||
411affcf | 2861 | error = SSLSetConnection(conn->session, http); |
89d46774 | 2862 | |
2863 | if (!error) | |
2864 | error = SSLSetIOFuncs(conn->session, _httpReadCDSA, _httpWriteCDSA); | |
2865 | ||
ef416fc2 | 2866 | if (!error) |
89d46774 | 2867 | error = SSLSetAllowsExpiredCerts(conn->session, true); |
ef416fc2 | 2868 | |
2869 | if (!error) | |
89d46774 | 2870 | error = SSLSetAllowsAnyRoot(conn->session, true); |
ef416fc2 | 2871 | |
ed486911 | 2872 | if (!error) |
2873 | error = SSLSetProtocolVersionEnabled(conn->session, kSSLProtocol2, false); | |
2874 | ||
ef416fc2 | 2875 | if (!error) |
b423cd4c | 2876 | { |
89d46774 | 2877 | while ((error = SSLHandshake(conn->session)) == errSSLWouldBlock) |
b423cd4c | 2878 | usleep(1000); |
2879 | } | |
ef416fc2 | 2880 | |
89d46774 | 2881 | if (error) |
ef416fc2 | 2882 | { |
2883 | http->error = error; | |
2884 | http->status = HTTP_ERROR; | |
2885 | ||
89d46774 | 2886 | SSLDisposeContext(conn->session); |
ef416fc2 | 2887 | |
89d46774 | 2888 | free(conn); |
ef416fc2 | 2889 | |
2890 | return (-1); | |
2891 | } | |
2892 | # endif /* HAVE_CDSASSL */ | |
2893 | ||
2894 | http->tls = conn; | |
2895 | return (0); | |
2896 | } | |
2897 | #endif /* HAVE_SSL */ | |
2898 | ||
2899 | ||
2900 | #ifdef HAVE_SSL | |
2901 | /* | |
2902 | * 'http_shutdown_ssl()' - Shut down SSL/TLS on a connection. | |
2903 | */ | |
2904 | ||
2905 | static void | |
568fa3fa | 2906 | http_shutdown_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 2907 | { |
2908 | # ifdef HAVE_LIBSSL | |
89d46774 | 2909 | SSL_CTX *context; /* Context for encryption */ |
2910 | SSL *conn; /* Connection for encryption */ | |
ef416fc2 | 2911 | |
2912 | ||
2913 | conn = (SSL *)(http->tls); | |
2914 | context = SSL_get_SSL_CTX(conn); | |
2915 | ||
2916 | SSL_shutdown(conn); | |
2917 | SSL_CTX_free(context); | |
2918 | SSL_free(conn); | |
2919 | ||
2920 | # elif defined(HAVE_GNUTLS) | |
89d46774 | 2921 | http_tls_t *conn; /* Encryption session */ |
ef416fc2 | 2922 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 2923 | /* TLS credentials */ |
ef416fc2 | 2924 | |
2925 | ||
2926 | conn = (http_tls_t *)(http->tls); | |
2927 | credentials = (gnutls_certificate_client_credentials *)(conn->credentials); | |
2928 | ||
2929 | gnutls_bye(conn->session, GNUTLS_SHUT_RDWR); | |
2930 | gnutls_deinit(conn->session); | |
2931 | gnutls_certificate_free_credentials(*credentials); | |
2932 | free(credentials); | |
2933 | free(conn); | |
2934 | ||
2935 | # elif defined(HAVE_CDSASSL) | |
89d46774 | 2936 | http_tls_t *conn; /* CDSA connection information */ |
2937 | ||
2938 | ||
2939 | conn = (http_tls_t *)(http->tls); | |
2940 | ||
2941 | while (SSLClose(conn->session) == errSSLWouldBlock) | |
b423cd4c | 2942 | usleep(1000); |
2943 | ||
89d46774 | 2944 | SSLDisposeContext(conn->session); |
2945 | ||
2946 | if (conn->certsArray) | |
2947 | CFRelease(conn->certsArray); | |
2948 | ||
2949 | free(conn); | |
ef416fc2 | 2950 | # endif /* HAVE_LIBSSL */ |
2951 | ||
2952 | http->tls = NULL; | |
2953 | } | |
2954 | #endif /* HAVE_SSL */ | |
2955 | ||
2956 | ||
2957 | #ifdef HAVE_SSL | |
2958 | /* | |
2959 | * 'http_upgrade()' - Force upgrade to TLS encryption. | |
2960 | */ | |
2961 | ||
89d46774 | 2962 | static int /* O - Status of connection */ |
568fa3fa | 2963 | http_upgrade(http_t *http) /* I - Connection to server */ |
ef416fc2 | 2964 | { |
89d46774 | 2965 | int ret; /* Return value */ |
2966 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 2967 | |
2968 | ||
2969 | DEBUG_printf(("http_upgrade(%p)\n", http)); | |
2970 | ||
2971 | /* | |
2972 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
2973 | * request without interfering with the existing request data... | |
2974 | */ | |
2975 | ||
2976 | memcpy(&myhttp, http, sizeof(myhttp)); | |
2977 | ||
2978 | /* | |
2979 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
2980 | * encryption on the link... | |
2981 | */ | |
2982 | ||
f7deaa1a | 2983 | http->field_authorization = NULL; /* Don't free the auth string */ |
2984 | ||
b86bc4cf | 2985 | httpClearFields(http); |
2986 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
2987 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.0, SSL/2.0, SSL/3.0"); | |
ef416fc2 | 2988 | |
b86bc4cf | 2989 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 2990 | { |
2991 | /* | |
2992 | * Wait for the secure connection... | |
2993 | */ | |
2994 | ||
b86bc4cf | 2995 | while (httpUpdate(http) == HTTP_CONTINUE); |
ef416fc2 | 2996 | } |
2997 | ||
b86bc4cf | 2998 | httpFlush(http); |
ef416fc2 | 2999 | |
3000 | /* | |
b86bc4cf | 3001 | * Restore the HTTP request data... |
ef416fc2 | 3002 | */ |
3003 | ||
b86bc4cf | 3004 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 3005 | http->data_encoding = myhttp.data_encoding; |
3006 | http->data_remaining = myhttp.data_remaining; | |
3007 | http->_data_remaining = myhttp._data_remaining; | |
3008 | http->expect = myhttp.expect; | |
3009 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 3010 | http->digest_tries = myhttp.digest_tries; |
ef416fc2 | 3011 | |
3012 | /* | |
3013 | * See if we actually went secure... | |
3014 | */ | |
3015 | ||
3016 | if (!http->tls) | |
3017 | { | |
3018 | /* | |
3019 | * Server does not support HTTP upgrade... | |
3020 | */ | |
3021 | ||
3022 | DEBUG_puts("Server does not support HTTP upgrade!"); | |
3023 | ||
3024 | # ifdef WIN32 | |
3025 | closesocket(http->fd); | |
3026 | # else | |
3027 | close(http->fd); | |
3028 | # endif | |
3029 | ||
3030 | http->fd = -1; | |
3031 | ||
3032 | return (-1); | |
3033 | } | |
3034 | else | |
3035 | return (ret); | |
3036 | } | |
3037 | #endif /* HAVE_SSL */ | |
3038 | ||
3039 | ||
3040 | /* | |
3041 | * 'http_wait()' - Wait for data available on a connection. | |
3042 | */ | |
3043 | ||
3044 | static int /* O - 1 if data is available, 0 otherwise */ | |
568fa3fa | 3045 | http_wait(http_t *http, /* I - Connection to server */ |
411affcf | 3046 | int msec, /* I - Milliseconds to wait */ |
3047 | int usessl) /* I - Use SSL context? */ | |
ef416fc2 | 3048 | { |
f7deaa1a | 3049 | #ifdef HAVE_POLL |
3050 | struct pollfd pfd; /* Polled file descriptor */ | |
3051 | #else | |
3052 | fd_set input_set; /* select() input set */ | |
ef416fc2 | 3053 | struct timeval timeout; /* Timeout */ |
f7deaa1a | 3054 | #endif /* HAVE_POLL */ |
3055 | int nfds; /* Result from select()/poll() */ | |
ef416fc2 | 3056 | |
3057 | ||
3058 | DEBUG_printf(("http_wait(http=%p, msec=%d)\n", http, msec)); | |
3059 | ||
fa73b229 | 3060 | if (http->fd < 0) |
3061 | return (0); | |
3062 | ||
ef416fc2 | 3063 | /* |
3064 | * Check the SSL/TLS buffers for data first... | |
3065 | */ | |
3066 | ||
3067 | #ifdef HAVE_SSL | |
411affcf | 3068 | if (http->tls && usessl) |
ef416fc2 | 3069 | { |
3070 | # ifdef HAVE_LIBSSL | |
3071 | if (SSL_pending((SSL *)(http->tls))) | |
3072 | return (1); | |
3073 | # elif defined(HAVE_GNUTLS) | |
3074 | if (gnutls_record_check_pending(((http_tls_t *)(http->tls))->session)) | |
3075 | return (1); | |
3076 | # elif defined(HAVE_CDSASSL) | |
3077 | size_t bytes; /* Bytes that are available */ | |
3078 | ||
ee571f26 MS |
3079 | if (!SSLGetBufferedReadSize(((http_tls_t *)(http->tls))->session, &bytes) && |
3080 | bytes > 0) | |
ef416fc2 | 3081 | return (1); |
3082 | # endif /* HAVE_LIBSSL */ | |
3083 | } | |
3084 | #endif /* HAVE_SSL */ | |
3085 | ||
3086 | /* | |
f7deaa1a | 3087 | * Then try doing a select() or poll() to poll the socket... |
ef416fc2 | 3088 | */ |
3089 | ||
f7deaa1a | 3090 | #ifdef HAVE_POLL |
3091 | pfd.fd = http->fd; | |
3092 | pfd.events = POLLIN; | |
ef416fc2 | 3093 | |
f7deaa1a | 3094 | while ((nfds = poll(&pfd, 1, msec)) < 0 && errno == EINTR); |
ef416fc2 | 3095 | |
f7deaa1a | 3096 | #else |
ef416fc2 | 3097 | do |
3098 | { | |
f7deaa1a | 3099 | FD_ZERO(&input_set); |
3100 | FD_SET(http->fd, &input_set); | |
ef416fc2 | 3101 | |
89d46774 | 3102 | DEBUG_printf(("http_wait: msec=%d, http->fd=%d\n", msec, http->fd)); |
3103 | ||
ef416fc2 | 3104 | if (msec >= 0) |
3105 | { | |
3106 | timeout.tv_sec = msec / 1000; | |
3107 | timeout.tv_usec = (msec % 1000) * 1000; | |
3108 | ||
f7deaa1a | 3109 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); |
ef416fc2 | 3110 | } |
3111 | else | |
f7deaa1a | 3112 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); |
89d46774 | 3113 | |
3114 | DEBUG_printf(("http_wait: select() returned %d...\n", nfds)); | |
ef416fc2 | 3115 | } |
f7deaa1a | 3116 | # ifdef WIN32 |
ef416fc2 | 3117 | while (nfds < 0 && WSAGetLastError() == WSAEINTR); |
f7deaa1a | 3118 | # else |
ef416fc2 | 3119 | while (nfds < 0 && errno == EINTR); |
f7deaa1a | 3120 | # endif /* WIN32 */ |
3121 | #endif /* HAVE_POLL */ | |
ef416fc2 | 3122 | |
89d46774 | 3123 | DEBUG_printf(("http_wait: returning with nfds=%d...\n", nfds)); |
3124 | ||
ef416fc2 | 3125 | return (nfds > 0); |
3126 | } | |
3127 | ||
3128 | ||
3129 | /* | |
3130 | * 'http_write()' - Write a buffer to a HTTP connection. | |
3131 | */ | |
3132 | ||
3133 | static int /* O - Number of bytes written */ | |
568fa3fa | 3134 | http_write(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3135 | const char *buffer, /* I - Buffer for data */ |
3136 | int length) /* I - Number of bytes to write */ | |
3137 | { | |
3138 | int tbytes, /* Total bytes sent */ | |
3139 | bytes; /* Bytes sent */ | |
3140 | ||
3141 | ||
3142 | tbytes = 0; | |
3143 | ||
3144 | while (length > 0) | |
3145 | { | |
3146 | #ifdef HAVE_SSL | |
3147 | if (http->tls) | |
3148 | bytes = http_write_ssl(http, buffer, length); | |
3149 | else | |
3150 | #endif /* HAVE_SSL */ | |
3151 | bytes = send(http->fd, buffer, length, 0); | |
3152 | ||
3153 | if (bytes < 0) | |
3154 | { | |
3155 | #ifdef WIN32 | |
3156 | if (WSAGetLastError() != http->error) | |
3157 | { | |
3158 | http->error = WSAGetLastError(); | |
3159 | continue; | |
3160 | } | |
3161 | #else | |
3162 | if (errno == EINTR) | |
3163 | continue; | |
3164 | else if (errno != http->error && errno != ECONNRESET) | |
3165 | { | |
3166 | http->error = errno; | |
3167 | continue; | |
3168 | } | |
3169 | #endif /* WIN32 */ | |
3170 | ||
3171 | DEBUG_puts("http_write: error writing data...\n"); | |
3172 | ||
3173 | return (-1); | |
3174 | } | |
3175 | ||
3176 | buffer += bytes; | |
3177 | tbytes += bytes; | |
3178 | length -= bytes; | |
3179 | } | |
3180 | ||
3181 | #ifdef DEBUG | |
ae71f5de | 3182 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 3183 | #endif /* DEBUG */ |
3184 | ||
3185 | return (tbytes); | |
3186 | } | |
3187 | ||
3188 | ||
3189 | /* | |
3190 | * 'http_write_chunk()' - Write a chunked buffer. | |
3191 | */ | |
3192 | ||
3193 | static int /* O - Number bytes written */ | |
568fa3fa | 3194 | http_write_chunk(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3195 | const char *buffer, /* I - Buffer to write */ |
3196 | int length) /* I - Length of buffer */ | |
3197 | { | |
3198 | char header[255]; /* Chunk header */ | |
3199 | int bytes; /* Bytes written */ | |
3200 | ||
3201 | DEBUG_printf(("http_write_chunk(http=%p, buffer=%p, length=%d)\n", | |
3202 | http, buffer, length)); | |
3203 | ||
3204 | /* | |
3205 | * Write the chunk header, data, and trailer. | |
3206 | */ | |
3207 | ||
3208 | sprintf(header, "%x\r\n", length); | |
b86bc4cf | 3209 | if (http_write(http, header, (int)strlen(header)) < 0) |
ef416fc2 | 3210 | { |
3211 | DEBUG_puts(" http_write of length failed!"); | |
3212 | return (-1); | |
3213 | } | |
3214 | ||
3215 | if ((bytes = http_write(http, buffer, length)) < 0) | |
3216 | { | |
3217 | DEBUG_puts(" http_write of buffer failed!"); | |
3218 | return (-1); | |
3219 | } | |
3220 | ||
3221 | if (http_write(http, "\r\n", 2) < 0) | |
3222 | { | |
3223 | DEBUG_puts(" http_write of CR LF failed!"); | |
3224 | return (-1); | |
3225 | } | |
3226 | ||
3227 | return (bytes); | |
3228 | } | |
3229 | ||
3230 | ||
3231 | #ifdef HAVE_SSL | |
3232 | /* | |
3233 | * 'http_write_ssl()' - Write to a SSL/TLS connection. | |
3234 | */ | |
3235 | ||
3236 | static int /* O - Bytes written */ | |
568fa3fa | 3237 | http_write_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3238 | const char *buf, /* I - Buffer holding data */ |
3239 | int len) /* I - Length of buffer */ | |
3240 | { | |
3241 | # if defined(HAVE_LIBSSL) | |
3242 | return (SSL_write((SSL *)(http->tls), buf, len)); | |
3243 | ||
3244 | # elif defined(HAVE_GNUTLS) | |
3245 | return (gnutls_record_send(((http_tls_t *)(http->tls))->session, buf, len)); | |
3246 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 3247 | int result; /* Return value */ |
ef416fc2 | 3248 | OSStatus error; /* Error info */ |
3249 | size_t processed; /* Number of bytes processed */ | |
3250 | ||
3251 | ||
89d46774 | 3252 | error = SSLWrite(((http_tls_t *)http->tls)->session, buf, len, &processed); |
ef416fc2 | 3253 | |
fa73b229 | 3254 | switch (error) |
ef416fc2 | 3255 | { |
fa73b229 | 3256 | case 0 : |
3257 | result = (int)processed; | |
3258 | break; | |
3259 | case errSSLClosedGraceful : | |
3260 | result = 0; | |
3261 | break; | |
3262 | case errSSLWouldBlock : | |
b423cd4c | 3263 | if (processed) |
3264 | result = (int)processed; | |
3265 | else | |
3266 | { | |
3267 | result = -1; | |
3268 | errno = EINTR; | |
3269 | } | |
fa73b229 | 3270 | break; |
3271 | default : | |
3272 | errno = EPIPE; | |
3273 | result = -1; | |
3274 | break; | |
ef416fc2 | 3275 | } |
fa73b229 | 3276 | |
3277 | return (result); | |
ef416fc2 | 3278 | # endif /* HAVE_LIBSSL */ |
3279 | } | |
3280 | #endif /* HAVE_SSL */ | |
3281 | ||
3282 | ||
3283 | /* | |
b19ccc9e | 3284 | * End of "$Id: http.c 7850 2008-08-20 00:07:25Z mike $". |
ef416fc2 | 3285 | */ |