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Commit | Line | Data |
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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
111ff13a | 4 | * HTTP routines for CUPS. |
ef416fc2 | 5 | * |
111ff13a MS |
6 | * Copyright 2007-2013 by Apple Inc. |
7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. | |
ef416fc2 | 8 | * |
111ff13a | 9 | * This file contains Kerberos support code, copyright 2006 by Jelmer Vernooij. |
f7deaa1a | 10 | * |
111ff13a MS |
11 | * These coded instructions, statements, and computer programs are the |
12 | * property of Apple Inc. and are protected by Federal copyright | |
13 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
14 | * which should have been included with this file. If this file is | |
15 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 16 | * |
111ff13a | 17 | * This file is subject to the Apple OS-Developed Software exception. |
ef416fc2 | 18 | */ |
19 | ||
20 | /* | |
21 | * Include necessary headers... | |
22 | */ | |
23 | ||
71e16022 | 24 | #include "cups-private.h" |
ef416fc2 | 25 | #include <fcntl.h> |
83e08001 | 26 | #include <math.h> |
cc754834 MS |
27 | #ifdef WIN32 |
28 | # include <tchar.h> | |
29 | #else | |
ef416fc2 | 30 | # include <signal.h> |
31 | # include <sys/time.h> | |
32 | # include <sys/resource.h> | |
cc754834 | 33 | #endif /* WIN32 */ |
f7deaa1a | 34 | #ifdef HAVE_POLL |
dcb445bc | 35 | # include <poll.h> |
f7deaa1a | 36 | #endif /* HAVE_POLL */ |
ef416fc2 | 37 | |
38 | ||
ef416fc2 | 39 | /* |
40 | * Local functions... | |
41 | */ | |
42 | ||
a469f8a5 MS |
43 | #ifdef HAVE_LIBZ |
44 | static void http_content_coding_finish(http_t *http); | |
45 | static void http_content_coding_start(http_t *http, | |
46 | const char *value); | |
47 | #endif /* HAVE_LIBZ */ | |
db8b865d MS |
48 | static http_t *http_create(const char *host, int port, |
49 | http_addrlist_t *addrlist, int family, | |
50 | http_encryption_t encryption, | |
51 | int blocking, _http_mode_t mode); | |
ae71f5de MS |
52 | #ifdef DEBUG |
53 | static void http_debug_hex(const char *prefix, const char *buffer, | |
54 | int bytes); | |
55 | #endif /* DEBUG */ | |
ef416fc2 | 56 | static http_field_t http_field(const char *name); |
0fa6c7fa MS |
57 | static ssize_t http_read(http_t *http, char *buffer, size_t length); |
58 | static ssize_t http_read_buffered(http_t *http, char *buffer, size_t length); | |
59 | static ssize_t http_read_chunk(http_t *http, char *buffer, size_t length); | |
ef416fc2 | 60 | static int http_send(http_t *http, http_state_t request, |
61 | const char *uri); | |
0fa6c7fa MS |
62 | static ssize_t http_write(http_t *http, const char *buffer, |
63 | size_t length); | |
64 | static ssize_t http_write_chunk(http_t *http, const char *buffer, | |
65 | size_t length); | |
ef416fc2 | 66 | #ifdef HAVE_SSL |
67 | static int http_read_ssl(http_t *http, char *buf, int len); | |
c1420c87 | 68 | # ifdef HAVE_CDSASSL |
7cf5915e | 69 | static int http_set_credentials(http_t *http); |
c1420c87 | 70 | # endif /* HAVE_CDSASSL */ |
d7225fc2 | 71 | #endif /* HAVE_SSL */ |
a469f8a5 | 72 | static off_t http_set_length(http_t *http); |
85dda01c MS |
73 | static void http_set_timeout(int fd, double timeout); |
74 | static void http_set_wait(http_t *http); | |
cb7f98ee MS |
75 | #ifdef DEBUG |
76 | static const char *http_state_string(http_state_t state); | |
77 | #endif /* DEBUG */ | |
d7225fc2 | 78 | #ifdef HAVE_SSL |
ef416fc2 | 79 | static int http_setup_ssl(http_t *http); |
80 | static void http_shutdown_ssl(http_t *http); | |
81 | static int http_upgrade(http_t *http); | |
82 | static int http_write_ssl(http_t *http, const char *buf, int len); | |
83 | #endif /* HAVE_SSL */ | |
84 | ||
85 | ||
86 | /* | |
87 | * Local globals... | |
88 | */ | |
89 | ||
90 | static const char * const http_fields[] = | |
91 | { | |
92 | "Accept-Language", | |
93 | "Accept-Ranges", | |
94 | "Authorization", | |
95 | "Connection", | |
96 | "Content-Encoding", | |
97 | "Content-Language", | |
98 | "Content-Length", | |
99 | "Content-Location", | |
100 | "Content-MD5", | |
101 | "Content-Range", | |
102 | "Content-Type", | |
103 | "Content-Version", | |
104 | "Date", | |
105 | "Host", | |
106 | "If-Modified-Since", | |
107 | "If-Unmodified-since", | |
108 | "Keep-Alive", | |
109 | "Last-Modified", | |
110 | "Link", | |
111 | "Location", | |
112 | "Range", | |
113 | "Referer", | |
114 | "Retry-After", | |
115 | "Transfer-Encoding", | |
116 | "Upgrade", | |
117 | "User-Agent", | |
a469f8a5 MS |
118 | "WWW-Authenticate", |
119 | "Accept-Encoding", | |
120 | "Allow", | |
121 | "Server" | |
ef416fc2 | 122 | }; |
123 | ||
124 | ||
411affcf | 125 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) |
126 | /* | |
127 | * BIO methods for OpenSSL... | |
128 | */ | |
129 | ||
130 | static int http_bio_write(BIO *h, const char *buf, int num); | |
131 | static int http_bio_read(BIO *h, char *buf, int size); | |
132 | static int http_bio_puts(BIO *h, const char *str); | |
133 | static long http_bio_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
134 | static int http_bio_new(BIO *h); | |
135 | static int http_bio_free(BIO *data); | |
136 | ||
137 | static BIO_METHOD http_bio_methods = | |
138 | { | |
139 | BIO_TYPE_SOCKET, | |
140 | "http", | |
141 | http_bio_write, | |
142 | http_bio_read, | |
143 | http_bio_puts, | |
144 | NULL, /* http_bio_gets, */ | |
145 | http_bio_ctrl, | |
146 | http_bio_new, | |
147 | http_bio_free, | |
148 | NULL, | |
149 | }; | |
7cf5915e | 150 | #endif /* HAVE_SSL && HAVE_LIBSSL */ |
411affcf | 151 | |
152 | ||
a469f8a5 MS |
153 | /* |
154 | * 'httpAcceptConnection()' - Accept a new HTTP client connection from the | |
155 | * specified listening socket. | |
156 | * | |
9c0e8e5d | 157 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
158 | */ |
159 | ||
160 | http_t * /* O - HTTP connection or @code NULL@ */ | |
161 | httpAcceptConnection(int fd, /* I - Listen socket file descriptor */ | |
162 | int blocking) /* I - 1 if the connection should be | |
163 | blocking, 0 otherwise */ | |
164 | { | |
165 | http_t *http; /* HTTP connection */ | |
166 | http_addrlist_t addrlist; /* Dummy address list */ | |
167 | socklen_t addrlen; /* Length of address */ | |
168 | int val; /* Socket option value */ | |
169 | ||
170 | ||
171 | /* | |
172 | * Range check input... | |
173 | */ | |
174 | ||
175 | if (fd < 0) | |
176 | return (NULL); | |
177 | ||
178 | /* | |
179 | * Create the client connection... | |
180 | */ | |
181 | ||
182 | memset(&addrlist, 0, sizeof(addrlist)); | |
183 | ||
db8b865d | 184 | if ((http = http_create(NULL, 0, &addrlist, AF_UNSPEC, |
a469f8a5 MS |
185 | HTTP_ENCRYPTION_IF_REQUESTED, blocking, |
186 | _HTTP_MODE_SERVER)) == NULL) | |
187 | return (NULL); | |
188 | ||
189 | /* | |
190 | * Accept the client and get the remote address... | |
191 | */ | |
192 | ||
193 | addrlen = sizeof(http_addr_t); | |
194 | ||
195 | if ((http->fd = accept(fd, (struct sockaddr *)&(http->addrlist->addr), | |
196 | &addrlen)) < 0) | |
197 | { | |
198 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
199 | httpClose(http); | |
200 | ||
201 | return (NULL); | |
202 | } | |
203 | ||
204 | httpAddrString(&(http->addrlist->addr), http->hostname, | |
205 | sizeof(http->hostname)); | |
206 | ||
207 | #ifdef SO_NOSIGPIPE | |
208 | /* | |
209 | * Disable SIGPIPE for this socket. | |
210 | */ | |
211 | ||
212 | val = 1; | |
db8b865d | 213 | setsockopt(http->fd, SOL_SOCKET, SO_NOSIGPIPE, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
214 | #endif /* SO_NOSIGPIPE */ |
215 | ||
216 | /* | |
217 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
218 | * with a slow loopback interface. Since we write large buffers | |
219 | * when sending print files and requests, there shouldn't be any | |
220 | * performance penalty for this... | |
221 | */ | |
222 | ||
223 | val = 1; | |
db8b865d | 224 | setsockopt(http->fd, IPPROTO_TCP, TCP_NODELAY, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
225 | |
226 | #ifdef FD_CLOEXEC | |
227 | /* | |
228 | * Close this socket when starting another process... | |
229 | */ | |
230 | ||
231 | fcntl(http->fd, F_SETFD, FD_CLOEXEC); | |
232 | #endif /* FD_CLOEXEC */ | |
233 | ||
234 | return (http); | |
235 | } | |
236 | ||
237 | ||
7cf5915e MS |
238 | /* |
239 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
240 | * | |
241 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
242 | * | |
f3c17241 | 243 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
244 | */ |
245 | ||
246 | int /* O - 0 on success, -1 on error */ | |
247 | httpAddCredential( | |
248 | cups_array_t *credentials, /* I - Credentials array */ | |
249 | const void *data, /* I - PEM-encoded X.509 data */ | |
250 | size_t datalen) /* I - Length of data */ | |
251 | { | |
252 | http_credential_t *credential; /* Credential data */ | |
253 | ||
254 | ||
255 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
256 | { | |
257 | credential->datalen = datalen; | |
258 | ||
259 | if ((credential->data = malloc(datalen)) != NULL) | |
260 | { | |
261 | memcpy(credential->data, data, datalen); | |
262 | cupsArrayAdd(credentials, credential); | |
263 | return (0); | |
264 | } | |
265 | ||
266 | free(credential); | |
267 | } | |
268 | ||
269 | return (-1); | |
270 | } | |
271 | ||
272 | ||
273 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
411affcf | 274 | /* |
275 | * '_httpBIOMethods()' - Get the OpenSSL BIO methods for HTTP connections. | |
276 | */ | |
277 | ||
278 | BIO_METHOD * /* O - BIO methods for OpenSSL */ | |
279 | _httpBIOMethods(void) | |
280 | { | |
281 | return (&http_bio_methods); | |
282 | } | |
283 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
284 | ||
285 | ||
ecdc0628 | 286 | /* |
287 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
288 | */ | |
289 | ||
290 | void | |
568fa3fa | 291 | httpBlocking(http_t *http, /* I - Connection to server */ |
ecdc0628 | 292 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
293 | { | |
294 | if (http) | |
85dda01c | 295 | { |
ecdc0628 | 296 | http->blocking = b; |
85dda01c MS |
297 | http_set_wait(http); |
298 | } | |
ecdc0628 | 299 | } |
300 | ||
301 | ||
ef416fc2 | 302 | /* |
303 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
304 | */ | |
305 | ||
ecdc0628 | 306 | int /* O - 0 = no data, 1 = data available */ |
568fa3fa | 307 | httpCheck(http_t *http) /* I - Connection to server */ |
ef416fc2 | 308 | { |
309 | return (httpWait(http, 0)); | |
310 | } | |
311 | ||
312 | ||
313 | /* | |
314 | * 'httpClearCookie()' - Clear the cookie value(s). | |
315 | * | |
f3c17241 | 316 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 317 | */ |
318 | ||
319 | void | |
568fa3fa | 320 | httpClearCookie(http_t *http) /* I - Connection to server */ |
ef416fc2 | 321 | { |
322 | if (!http) | |
323 | return; | |
324 | ||
325 | if (http->cookie) | |
326 | { | |
327 | free(http->cookie); | |
328 | http->cookie = NULL; | |
329 | } | |
330 | } | |
331 | ||
332 | ||
ecdc0628 | 333 | /* |
334 | * 'httpClearFields()' - Clear HTTP request fields. | |
335 | */ | |
336 | ||
337 | void | |
568fa3fa | 338 | httpClearFields(http_t *http) /* I - Connection to server */ |
ecdc0628 | 339 | { |
a469f8a5 MS |
340 | DEBUG_printf(("httpClearFields(http=%p)", http)); |
341 | ||
ecdc0628 | 342 | if (http) |
343 | { | |
344 | memset(http->fields, 0, sizeof(http->fields)); | |
a469f8a5 MS |
345 | |
346 | if (http->mode == _HTTP_MODE_CLIENT) | |
347 | { | |
348 | if (http->hostname[0] == '/') | |
349 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
350 | else | |
351 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
352 | } | |
b423cd4c | 353 | |
f7deaa1a | 354 | if (http->field_authorization) |
355 | { | |
356 | free(http->field_authorization); | |
357 | http->field_authorization = NULL; | |
358 | } | |
359 | ||
a469f8a5 MS |
360 | if (http->accept_encoding) |
361 | { | |
362 | _cupsStrFree(http->accept_encoding); | |
363 | http->accept_encoding = NULL; | |
364 | } | |
365 | ||
366 | if (http->allow) | |
367 | { | |
368 | _cupsStrFree(http->allow); | |
369 | http->allow = NULL; | |
370 | } | |
371 | ||
372 | if (http->server) | |
373 | { | |
374 | _cupsStrFree(http->server); | |
375 | http->server = NULL; | |
376 | } | |
377 | ||
b423cd4c | 378 | http->expect = (http_status_t)0; |
ecdc0628 | 379 | } |
380 | } | |
381 | ||
382 | ||
ef416fc2 | 383 | /* |
6d2f911b | 384 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 385 | */ |
386 | ||
387 | void | |
568fa3fa | 388 | httpClose(http_t *http) /* I - Connection to server */ |
ef416fc2 | 389 | { |
f7deaa1a | 390 | #ifdef HAVE_GSSAPI |
1f0275e3 | 391 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 392 | #endif /* HAVE_GSSAPI */ |
393 | ||
394 | ||
e07d4801 | 395 | DEBUG_printf(("httpClose(http=%p)", http)); |
ef416fc2 | 396 | |
6d2f911b MS |
397 | /* |
398 | * Range check input... | |
399 | */ | |
400 | ||
ef416fc2 | 401 | if (!http) |
402 | return; | |
403 | ||
6d2f911b MS |
404 | /* |
405 | * Close any open connection... | |
406 | */ | |
407 | ||
408 | _httpDisconnect(http); | |
409 | ||
410 | /* | |
411 | * Free memory used... | |
412 | */ | |
413 | ||
ef416fc2 | 414 | httpAddrFreeList(http->addrlist); |
415 | ||
ef416fc2 | 416 | if (http->cookie) |
417 | free(http->cookie); | |
418 | ||
f7deaa1a | 419 | #ifdef HAVE_GSSAPI |
420 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 421 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 422 | |
423 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 424 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 425 | #endif /* HAVE_GSSAPI */ |
426 | ||
b94498cf | 427 | #ifdef HAVE_AUTHORIZATION_H |
428 | if (http->auth_ref) | |
429 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
430 | #endif /* HAVE_AUTHORIZATION_H */ | |
431 | ||
f7deaa1a | 432 | httpClearFields(http); |
433 | ||
434 | if (http->authstring && http->authstring != http->_authstring) | |
435 | free(http->authstring); | |
436 | ||
ef416fc2 | 437 | free(http); |
438 | } | |
439 | ||
440 | ||
441 | /* | |
442 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e | 443 | * |
a469f8a5 | 444 | * This function is deprecated - use @link httpConnect2@ instead. |
1ff0402e MS |
445 | * |
446 | * @deprecated@ | |
ef416fc2 | 447 | */ |
448 | ||
449 | http_t * /* O - New HTTP connection */ | |
450 | httpConnect(const char *host, /* I - Host to connect to */ | |
451 | int port) /* I - Port number */ | |
452 | { | |
cb7f98ee | 453 | return (httpConnect2(host, port, NULL, AF_UNSPEC, HTTP_ENCRYPTION_IF_REQUESTED, |
a469f8a5 | 454 | 1, 30000, NULL)); |
1ff0402e MS |
455 | } |
456 | ||
457 | ||
458 | /* | |
a469f8a5 MS |
459 | * 'httpConnect2()' - Connect to a HTTP server. |
460 | * | |
9c0e8e5d | 461 | * @since CUPS 1.7/OS X 10.9@ |
1ff0402e MS |
462 | */ |
463 | ||
464 | http_t * /* O - New HTTP connection */ | |
a469f8a5 | 465 | httpConnect2( |
1ff0402e MS |
466 | const char *host, /* I - Host to connect to */ |
467 | int port, /* I - Port number */ | |
a469f8a5 MS |
468 | http_addrlist_t *addrlist, /* I - List of addresses or NULL to lookup */ |
469 | int family, /* I - Address family to use or @code AF_UNSPEC@ for any */ | |
470 | http_encryption_t encryption, /* I - Type of encryption to use */ | |
471 | int blocking, /* I - 1 for blocking connection, 0 for non-blocking */ | |
db8b865d | 472 | int msec, /* I - Connection timeout in milliseconds, 0 means don't connect */ |
a469f8a5 | 473 | int *cancel) /* I - Pointer to "cancel" variable */ |
1ff0402e MS |
474 | { |
475 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 476 | |
477 | ||
a469f8a5 MS |
478 | DEBUG_printf(("httpConnect2(host=\"%s\", port=%d, addrlist=%p, family=%d, " |
479 | "encryption=%d, blocking=%d, msec=%d, cancel=%p)", host, port, | |
480 | addrlist, family, encryption, blocking, msec, cancel)); | |
1ff0402e | 481 | |
ef416fc2 | 482 | /* |
1ff0402e | 483 | * Create the HTTP structure... |
ef416fc2 | 484 | */ |
485 | ||
db8b865d | 486 | if ((http = http_create(host, port, addrlist, family, encryption, blocking, |
a469f8a5 | 487 | _HTTP_MODE_CLIENT)) == NULL) |
1ff0402e | 488 | return (NULL); |
ef416fc2 | 489 | |
1ff0402e | 490 | /* |
db8b865d | 491 | * Optionally connect to the remote system... |
1ff0402e MS |
492 | */ |
493 | ||
db8b865d | 494 | if (msec == 0 || !httpReconnect2(http, msec, cancel)) |
1ff0402e MS |
495 | return (http); |
496 | ||
497 | /* | |
498 | * Could not connect to any known address - bail out! | |
499 | */ | |
500 | ||
a469f8a5 | 501 | httpClose(http); |
1ff0402e MS |
502 | |
503 | return (NULL); | |
ef416fc2 | 504 | } |
505 | ||
506 | ||
a469f8a5 MS |
507 | /* |
508 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
509 | * | |
510 | * This function is now deprecated. Please use the @link httpConnect2@ function | |
511 | * instead. | |
512 | * | |
513 | * @deprecated@ | |
514 | */ | |
515 | ||
516 | http_t * /* O - New HTTP connection */ | |
517 | httpConnectEncrypt( | |
518 | const char *host, /* I - Host to connect to */ | |
519 | int port, /* I - Port number */ | |
520 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
521 | { | |
522 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", | |
523 | host, port, encryption)); | |
524 | ||
525 | return (httpConnect2(host, port, NULL, AF_UNSPEC, encryption, 1, 30000, | |
526 | NULL)); | |
527 | } | |
528 | ||
529 | ||
7cf5915e MS |
530 | /* |
531 | * 'httpCopyCredentials()' - Copy the credentials associated with an encrypted | |
532 | * connection. | |
533 | * | |
f3c17241 | 534 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
535 | */ |
536 | ||
537 | int /* O - Status of call (0 = success) */ | |
538 | httpCopyCredentials( | |
539 | http_t *http, /* I - Connection to server */ | |
540 | cups_array_t **credentials) /* O - Array of credentials */ | |
541 | { | |
542 | # ifdef HAVE_LIBSSL | |
543 | # elif defined(HAVE_GNUTLS) | |
c1420c87 | 544 | # elif defined(HAVE_CDSASSL) |
7cf5915e | 545 | OSStatus error; /* Error code */ |
c1420c87 | 546 | SecTrustRef peerTrust; /* Peer trust reference */ |
7cf5915e | 547 | CFIndex count; /* Number of credentials */ |
7cf5915e MS |
548 | SecCertificateRef secCert; /* Certificate reference */ |
549 | CFDataRef data; /* Certificate data */ | |
550 | int i; /* Looping var */ | |
551 | # elif defined(HAVE_SSPISSL) | |
552 | # endif /* HAVE_LIBSSL */ | |
553 | ||
554 | ||
555 | if (credentials) | |
556 | *credentials = NULL; | |
557 | ||
558 | if (!http || !http->tls || !credentials) | |
559 | return (-1); | |
560 | ||
561 | # ifdef HAVE_LIBSSL | |
562 | return (-1); | |
563 | ||
564 | # elif defined(HAVE_GNUTLS) | |
565 | return (-1); | |
566 | ||
c1420c87 MS |
567 | # elif defined(HAVE_CDSASSL) |
568 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
7cf5915e MS |
569 | { |
570 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) | |
571 | { | |
c1420c87 MS |
572 | count = SecTrustGetCertificateCount(peerTrust); |
573 | ||
574 | for (i = 0; i < count; i ++) | |
7cf5915e | 575 | { |
c1420c87 | 576 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); |
7cf5915e MS |
577 | if ((data = SecCertificateCopyData(secCert))) |
578 | { | |
579 | httpAddCredential(*credentials, CFDataGetBytePtr(data), | |
580 | CFDataGetLength(data)); | |
581 | CFRelease(data); | |
582 | } | |
583 | } | |
584 | } | |
585 | ||
c1420c87 | 586 | CFRelease(peerTrust); |
7cf5915e MS |
587 | } |
588 | ||
589 | return (error); | |
590 | ||
591 | # elif defined(HAVE_SSPISSL) | |
592 | return (-1); | |
82f97232 MS |
593 | |
594 | # else | |
595 | return (-1); | |
7cf5915e MS |
596 | # endif /* HAVE_LIBSSL */ |
597 | } | |
598 | ||
599 | ||
85dda01c MS |
600 | /* |
601 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
602 | */ | |
603 | ||
604 | http_tls_credentials_t /* O - Internal credentials */ | |
605 | _httpCreateCredentials( | |
606 | cups_array_t *credentials) /* I - Array of credentials */ | |
607 | { | |
608 | if (!credentials) | |
609 | return (NULL); | |
610 | ||
611 | # ifdef HAVE_LIBSSL | |
612 | return (NULL); | |
613 | ||
614 | # elif defined(HAVE_GNUTLS) | |
615 | return (NULL); | |
616 | ||
c1420c87 | 617 | # elif defined(HAVE_CDSASSL) |
85dda01c MS |
618 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ |
619 | SecCertificateRef secCert; /* Certificate reference */ | |
620 | CFDataRef data; /* Credential data reference */ | |
621 | http_credential_t *credential; /* Credential data */ | |
622 | ||
623 | ||
624 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
625 | cupsArrayCount(credentials), | |
626 | &kCFTypeArrayCallBacks)) == NULL) | |
627 | return (NULL); | |
628 | ||
629 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
630 | credential; | |
631 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
632 | { | |
633 | if ((data = CFDataCreate(kCFAllocatorDefault, credential->data, | |
634 | credential->datalen))) | |
635 | { | |
636 | if ((secCert = SecCertificateCreateWithData(kCFAllocatorDefault, data)) | |
637 | != NULL) | |
638 | { | |
639 | CFArrayAppendValue(peerCerts, secCert); | |
640 | CFRelease(secCert); | |
641 | } | |
642 | ||
643 | CFRelease(data); | |
644 | } | |
645 | } | |
646 | ||
647 | return (peerCerts); | |
648 | ||
649 | # elif defined(HAVE_SSPISSL) | |
650 | return (NULL); | |
651 | ||
652 | # else | |
653 | return (NULL); | |
654 | # endif /* HAVE_LIBSSL */ | |
655 | } | |
656 | ||
657 | ||
ef416fc2 | 658 | /* |
659 | * 'httpDelete()' - Send a DELETE request to the server. | |
660 | */ | |
661 | ||
662 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 663 | httpDelete(http_t *http, /* I - Connection to server */ |
ef416fc2 | 664 | const char *uri) /* I - URI to delete */ |
665 | { | |
cb7f98ee | 666 | return (http_send(http, HTTP_STATE_DELETE, uri)); |
ef416fc2 | 667 | } |
668 | ||
669 | ||
6d2f911b MS |
670 | /* |
671 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
672 | */ | |
673 | ||
674 | void | |
675 | _httpDisconnect(http_t *http) /* I - Connection to server */ | |
676 | { | |
677 | #ifdef HAVE_SSL | |
678 | if (http->tls) | |
679 | http_shutdown_ssl(http); | |
680 | #endif /* HAVE_SSL */ | |
681 | ||
682 | #ifdef WIN32 | |
683 | closesocket(http->fd); | |
684 | #else | |
685 | close(http->fd); | |
686 | #endif /* WIN32 */ | |
687 | ||
688 | http->fd = -1; | |
689 | } | |
690 | ||
691 | ||
ef416fc2 | 692 | /* |
693 | * 'httpEncryption()' - Set the required encryption on the link. | |
694 | */ | |
695 | ||
696 | int /* O - -1 on error, 0 on success */ | |
568fa3fa | 697 | httpEncryption(http_t *http, /* I - Connection to server */ |
ef416fc2 | 698 | http_encryption_t e) /* I - New encryption preference */ |
699 | { | |
e07d4801 | 700 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", http, e)); |
ef416fc2 | 701 | |
702 | #ifdef HAVE_SSL | |
703 | if (!http) | |
704 | return (0); | |
705 | ||
706 | http->encryption = e; | |
707 | ||
cb7f98ee MS |
708 | if ((http->encryption == HTTP_ENCRYPTION_ALWAYS && !http->tls) || |
709 | (http->encryption == HTTP_ENCRYPTION_NEVER && http->tls)) | |
710 | return (httpReconnect2(http, 30000, NULL)); | |
711 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) | |
ef416fc2 | 712 | return (http_upgrade(http)); |
713 | else | |
714 | return (0); | |
715 | #else | |
cb7f98ee | 716 | if (e == HTTP_ENCRYPTION_ALWAYS || e == HTTP_ENCRYPTION_REQUIRED) |
ef416fc2 | 717 | return (-1); |
718 | else | |
719 | return (0); | |
720 | #endif /* HAVE_SSL */ | |
721 | } | |
722 | ||
723 | ||
ecdc0628 | 724 | /* |
725 | * 'httpError()' - Get the last error on a connection. | |
726 | */ | |
727 | ||
728 | int /* O - Error code (errno) value */ | |
568fa3fa | 729 | httpError(http_t *http) /* I - Connection to server */ |
ecdc0628 | 730 | { |
731 | if (http) | |
732 | return (http->error); | |
733 | else | |
734 | return (EINVAL); | |
735 | } | |
736 | ||
737 | ||
ef416fc2 | 738 | /* |
739 | * 'httpFlush()' - Flush data from a HTTP connection. | |
740 | */ | |
741 | ||
742 | void | |
568fa3fa | 743 | httpFlush(http_t *http) /* I - Connection to server */ |
ef416fc2 | 744 | { |
f8b3a85b MS |
745 | char buffer[8192]; /* Junk buffer */ |
746 | int blocking; /* To block or not to block */ | |
747 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 748 | |
749 | ||
f11a948a | 750 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
cb7f98ee | 751 | http_state_string(http->state))); |
ef416fc2 | 752 | |
c1420c87 MS |
753 | /* |
754 | * Nothing to do if we are in the "waiting" state... | |
755 | */ | |
756 | ||
757 | if (http->state == HTTP_STATE_WAITING) | |
758 | return; | |
759 | ||
fa73b229 | 760 | /* |
761 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
762 | */ | |
763 | ||
764 | blocking = http->blocking; | |
765 | http->blocking = 0; | |
766 | ||
767 | /* | |
768 | * Read any data we can... | |
769 | */ | |
770 | ||
f8b3a85b | 771 | oldstate = http->state; |
a4d04587 | 772 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 773 | |
774 | /* | |
775 | * Restore blocking and reset the connection if we didn't get all of | |
776 | * the remaining data... | |
777 | */ | |
778 | ||
779 | http->blocking = blocking; | |
780 | ||
a469f8a5 MS |
781 | if (http->state == oldstate && http->state != HTTP_STATE_WAITING && |
782 | http->fd >= 0) | |
fa73b229 | 783 | { |
784 | /* | |
785 | * Didn't get the data back, so close the current connection. | |
786 | */ | |
787 | ||
c41769ff MS |
788 | #ifdef HAVE_LIBZ |
789 | if (http->coding) | |
790 | http_content_coding_finish(http); | |
791 | #endif /* HAVE_LIBZ */ | |
792 | ||
a469f8a5 MS |
793 | DEBUG_puts("1httpFlush: Setting state to HTTP_STATE_WAITING and closing."); |
794 | ||
795 | http->state = HTTP_STATE_WAITING; | |
fa73b229 | 796 | |
797 | #ifdef HAVE_SSL | |
798 | if (http->tls) | |
799 | http_shutdown_ssl(http); | |
800 | #endif /* HAVE_SSL */ | |
801 | ||
802 | #ifdef WIN32 | |
803 | closesocket(http->fd); | |
804 | #else | |
805 | close(http->fd); | |
806 | #endif /* WIN32 */ | |
807 | ||
808 | http->fd = -1; | |
809 | } | |
ef416fc2 | 810 | } |
811 | ||
812 | ||
813 | /* | |
814 | * 'httpFlushWrite()' - Flush data in write buffer. | |
815 | * | |
f3c17241 | 816 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 817 | */ |
818 | ||
819 | int /* O - Bytes written or -1 on error */ | |
568fa3fa | 820 | httpFlushWrite(http_t *http) /* I - Connection to server */ |
ef416fc2 | 821 | { |
822 | int bytes; /* Bytes written */ | |
823 | ||
824 | ||
a469f8a5 MS |
825 | DEBUG_printf(("httpFlushWrite(http=%p) data_encoding=%d", http, |
826 | http ? http->data_encoding : -1)); | |
ef416fc2 | 827 | |
828 | if (!http || !http->wused) | |
f8b3a85b MS |
829 | { |
830 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
831 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 832 | return (0); |
f8b3a85b | 833 | } |
ef416fc2 | 834 | |
a469f8a5 | 835 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 836 | bytes = http_write_chunk(http, http->wbuffer, http->wused); |
837 | else | |
838 | bytes = http_write(http, http->wbuffer, http->wused); | |
839 | ||
840 | http->wused = 0; | |
841 | ||
22c9029b | 842 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", bytes, errno)); |
f8b3a85b | 843 | |
ef416fc2 | 844 | return (bytes); |
845 | } | |
846 | ||
847 | ||
7cf5915e MS |
848 | /* |
849 | * '_httpFreeCredentials()' - Free internal credentials. | |
850 | */ | |
851 | ||
852 | void | |
853 | _httpFreeCredentials( | |
854 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
855 | { | |
856 | if (!credentials) | |
857 | return; | |
858 | ||
859 | #ifdef HAVE_LIBSSL | |
860 | (void)credentials; | |
861 | ||
862 | #elif defined(HAVE_GNUTLS) | |
863 | (void)credentials; | |
864 | ||
865 | #elif defined(HAVE_CDSASSL) | |
866 | CFRelease(credentials); | |
867 | ||
868 | #elif defined(HAVE_SSPISSL) | |
869 | (void)credentials; | |
870 | ||
871 | #endif /* HAVE_LIBSSL */ | |
872 | } | |
873 | ||
874 | ||
875 | /* | |
876 | * 'httpFreeCredentials()' - Free an array of credentials. | |
877 | */ | |
878 | ||
879 | void | |
880 | httpFreeCredentials( | |
881 | cups_array_t *credentials) /* I - Array of credentials */ | |
882 | { | |
883 | http_credential_t *credential; /* Credential */ | |
884 | ||
885 | ||
886 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
887 | credential; | |
888 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
889 | { | |
890 | cupsArrayRemove(credentials, credential); | |
891 | free((void *)credential->data); | |
892 | free(credential); | |
893 | } | |
894 | ||
895 | cupsArrayDelete(credentials); | |
896 | } | |
897 | ||
898 | ||
ef416fc2 | 899 | /* |
900 | * 'httpGet()' - Send a GET request to the server. | |
901 | */ | |
902 | ||
903 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 904 | httpGet(http_t *http, /* I - Connection to server */ |
ef416fc2 | 905 | const char *uri) /* I - URI to get */ |
906 | { | |
cb7f98ee | 907 | return (http_send(http, HTTP_STATE_GET, uri)); |
ef416fc2 | 908 | } |
909 | ||
910 | ||
6961465f MS |
911 | /* |
912 | * 'httpGetAuthString()' - Get the current authorization string. | |
913 | * | |
914 | * The authorization string is set by cupsDoAuthentication() and | |
915 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
916 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
917 | * value. | |
918 | * | |
919 | * @since CUPS 1.3/OS X 10.5@ | |
920 | */ | |
921 | ||
922 | char * /* O - Authorization string */ | |
923 | httpGetAuthString(http_t *http) /* I - Connection to server */ | |
924 | { | |
925 | if (http) | |
926 | return (http->authstring); | |
927 | else | |
928 | return (NULL); | |
929 | } | |
930 | ||
931 | ||
932 | /* | |
933 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
934 | * | |
935 | * @since CUPS 1.2/OS X 10.5@ | |
936 | */ | |
937 | ||
938 | int /* O - 1 if blocking, 0 if non-blocking */ | |
939 | httpGetBlocking(http_t *http) /* I - Connection to server */ | |
940 | { | |
941 | return (http ? http->blocking : 0); | |
942 | } | |
943 | ||
944 | ||
a469f8a5 MS |
945 | /* |
946 | * 'httpGetContentEncoding()' - Get a common content encoding, if any, between | |
947 | * the client and server. | |
948 | * | |
949 | * This function uses the value of the Accepts-Encoding HTTP header and must be | |
950 | * called after receiving a response from the server or a request from the | |
951 | * client. The value returned can be use in subsequent requests (for clients) | |
952 | * or in the response (for servers) in order to compress the content stream. | |
953 | * | |
9c0e8e5d | 954 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
955 | */ |
956 | ||
957 | const char * /* O - Content-Coding value or | |
958 | @code NULL@ for the identity | |
959 | coding. */ | |
960 | httpGetContentEncoding(http_t *http) /* I - Connection to client/server */ | |
961 | { | |
962 | #ifdef HAVE_LIBZ | |
963 | if (http && http->accept_encoding) | |
964 | { | |
965 | int i; /* Looping var */ | |
966 | char temp[HTTP_MAX_VALUE], /* Copy of Accepts-Encoding value */ | |
967 | *start, /* Start of coding value */ | |
968 | *end; /* End of coding value */ | |
969 | double qvalue; /* "qvalue" for coding */ | |
970 | struct lconv *loc = localeconv(); /* Locale data */ | |
971 | static const char * const codings[] = | |
972 | { /* Supported content codings */ | |
973 | "deflate", | |
974 | "gzip", | |
975 | "x-deflate", | |
976 | "x-gzip" | |
977 | }; | |
978 | ||
979 | strlcpy(temp, http->accept_encoding, sizeof(temp)); | |
980 | ||
981 | for (start = temp; *start; start = end) | |
982 | { | |
983 | /* | |
984 | * Find the end of the coding name... | |
985 | */ | |
986 | ||
987 | qvalue = 1.0; | |
988 | end = start; | |
989 | while (*end && *end != ';' && *end != ',' && !isspace(*end & 255)) | |
990 | end ++; | |
991 | ||
992 | if (*end == ';') | |
993 | { | |
994 | /* | |
995 | * Grab the qvalue as needed... | |
996 | */ | |
997 | ||
998 | if (!strncmp(end, ";q=", 3)) | |
999 | qvalue = _cupsStrScand(end + 3, NULL, loc); | |
1000 | ||
1001 | /* | |
1002 | * Skip past all attributes... | |
1003 | */ | |
1004 | ||
1005 | *end++ = '\0'; | |
1006 | while (*end && *end != ',' && !isspace(*end & 255)) | |
1007 | end ++; | |
1008 | } | |
1009 | else if (*end) | |
1010 | *end++ = '\0'; | |
1011 | ||
1012 | while (*end && isspace(*end & 255)) | |
1013 | end ++; | |
1014 | ||
1015 | /* | |
1016 | * Check value if it matches something we support... | |
1017 | */ | |
1018 | ||
1019 | if (qvalue <= 0.0) | |
1020 | continue; | |
1021 | ||
1022 | for (i = 0; i < (int)(sizeof(codings) / sizeof(codings[0])); i ++) | |
1023 | if (!strcmp(start, codings[i])) | |
1024 | return (codings[i]); | |
1025 | } | |
1026 | } | |
1027 | #endif /* HAVE_LIBZ */ | |
1028 | ||
1029 | return (NULL); | |
1030 | } | |
1031 | ||
1032 | ||
ecdc0628 | 1033 | /* |
1034 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 1035 | * |
f3c17241 | 1036 | * @since CUPS 1.1.19/OS X 10.3@ |
ecdc0628 | 1037 | */ |
1038 | ||
1039 | const char * /* O - Cookie data or NULL */ | |
1040 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
1041 | { | |
1042 | return (http ? http->cookie : NULL); | |
1043 | } | |
1044 | ||
1045 | ||
a469f8a5 MS |
1046 | /* |
1047 | * 'httpGetExpect()' - Get the value of the Expect header, if any. | |
1048 | * | |
1049 | * Returns @code HTTP_STATUS_NONE@ if there is no Expect header, otherwise | |
1050 | * returns the expected HTTP status code, typically @code HTTP_STATUS_CONTINUE@. | |
1051 | * | |
9c0e8e5d | 1052 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
1053 | */ |
1054 | ||
1055 | http_status_t /* O - Expect: status, if any */ | |
1056 | httpGetExpect(http_t *http) /* I - Connection to client */ | |
1057 | { | |
1058 | if (!http) | |
1059 | return (HTTP_STATUS_ERROR); | |
1060 | else | |
1061 | return (http->expect); | |
1062 | } | |
1063 | ||
1064 | ||
ecdc0628 | 1065 | /* |
1066 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
1067 | * | |
f3c17241 | 1068 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 1069 | */ |
1070 | ||
1071 | int /* O - File descriptor or -1 if none */ | |
568fa3fa | 1072 | httpGetFd(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1073 | { |
1074 | return (http ? http->fd : -1); | |
1075 | } | |
1076 | ||
1077 | ||
1078 | /* | |
1079 | * 'httpGetField()' - Get a field value from a request/response. | |
1080 | */ | |
1081 | ||
1082 | const char * /* O - Field value */ | |
568fa3fa | 1083 | httpGetField(http_t *http, /* I - Connection to server */ |
ecdc0628 | 1084 | http_field_t field) /* I - Field to get */ |
1085 | { | |
1086 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1087 | return (NULL); | |
a469f8a5 MS |
1088 | |
1089 | switch (field) | |
f7deaa1a | 1090 | { |
a469f8a5 MS |
1091 | case HTTP_FIELD_ACCEPT_ENCODING : |
1092 | return (http->accept_encoding); | |
f7deaa1a | 1093 | |
a469f8a5 MS |
1094 | case HTTP_FIELD_ALLOW : |
1095 | return (http->allow); | |
1096 | ||
1097 | case HTTP_FIELD_SERVER : | |
1098 | return (http->server); | |
1099 | ||
1100 | case HTTP_FIELD_AUTHORIZATION : | |
1101 | if (http->field_authorization) | |
1102 | { | |
1103 | /* | |
1104 | * Special case for WWW-Authenticate: as its contents can be | |
1105 | * longer than HTTP_MAX_VALUE... | |
1106 | */ | |
1107 | ||
1108 | return (http->field_authorization); | |
1109 | } | |
1110 | ||
1111 | default : | |
1112 | return (http->fields[field]); | |
f7deaa1a | 1113 | } |
ecdc0628 | 1114 | } |
1115 | ||
1116 | ||
1117 | /* | |
1118 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1119 | * content-length or transfer-encoding fields. | |
1120 | * | |
1121 | * This function is deprecated and will not return lengths larger than | |
1122 | * 2^31 - 1; use httpGetLength2() instead. | |
1123 | * | |
1124 | * @deprecated@ | |
1125 | */ | |
1126 | ||
1127 | int /* O - Content length */ | |
568fa3fa | 1128 | httpGetLength(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1129 | { |
1130 | /* | |
1131 | * Get the read content length and return the 32-bit value. | |
1132 | */ | |
1133 | ||
1134 | if (http) | |
1135 | { | |
1136 | httpGetLength2(http); | |
1137 | ||
1138 | return (http->_data_remaining); | |
1139 | } | |
1140 | else | |
1141 | return (-1); | |
1142 | } | |
1143 | ||
1144 | ||
1145 | /* | |
1146 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1147 | * content-length or transfer-encoding fields. | |
1148 | * | |
1149 | * This function returns the complete content length, even for | |
1150 | * content larger than 2^31 - 1. | |
1151 | * | |
f3c17241 | 1152 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 1153 | */ |
1154 | ||
1155 | off_t /* O - Content length */ | |
568fa3fa | 1156 | httpGetLength2(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1157 | { |
a469f8a5 MS |
1158 | off_t remaining; /* Remaining length */ |
1159 | ||
1160 | ||
f11a948a | 1161 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
cb7f98ee | 1162 | http_state_string(http->state))); |
ecdc0628 | 1163 | |
1164 | if (!http) | |
1165 | return (-1); | |
1166 | ||
88f9aafc | 1167 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1168 | { |
e07d4801 | 1169 | DEBUG_puts("4httpGetLength2: chunked request!"); |
a469f8a5 | 1170 | remaining = 0; |
ecdc0628 | 1171 | } |
1172 | else | |
1173 | { | |
ecdc0628 | 1174 | /* |
1175 | * The following is a hack for HTTP servers that don't send a | |
a469f8a5 | 1176 | * Content-Length or Transfer-Encoding field... |
ecdc0628 | 1177 | * |
a469f8a5 | 1178 | * If there is no Content-Length then the connection must close |
ecdc0628 | 1179 | * after the transfer is complete... |
1180 | */ | |
1181 | ||
b86bc4cf | 1182 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1183 | { | |
1184 | /* | |
a469f8a5 MS |
1185 | * Default content length is 0 for errors and certain types of operations, |
1186 | * and 2^31-1 for other successful requests... | |
b86bc4cf | 1187 | */ |
1188 | ||
cb7f98ee | 1189 | if (http->status >= HTTP_STATUS_MULTIPLE_CHOICES || |
a469f8a5 MS |
1190 | http->state == HTTP_STATE_OPTIONS || |
1191 | (http->state == HTTP_STATE_GET && http->mode == _HTTP_MODE_SERVER) || | |
1192 | http->state == HTTP_STATE_HEAD || | |
1193 | (http->state == HTTP_STATE_PUT && http->mode == _HTTP_MODE_CLIENT) || | |
1194 | http->state == HTTP_STATE_DELETE || | |
1195 | http->state == HTTP_STATE_TRACE || | |
1196 | http->state == HTTP_STATE_CONNECT) | |
1197 | remaining = 0; | |
b86bc4cf | 1198 | else |
a469f8a5 | 1199 | remaining = 2147483647; |
b86bc4cf | 1200 | } |
a469f8a5 MS |
1201 | else if ((remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], |
1202 | NULL, 10)) < 0) | |
1203 | remaining = -1; | |
ecdc0628 | 1204 | |
e07d4801 | 1205 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
a469f8a5 | 1206 | CUPS_LLCAST remaining)); |
ecdc0628 | 1207 | } |
1208 | ||
a469f8a5 | 1209 | return (remaining); |
ecdc0628 | 1210 | } |
1211 | ||
1212 | ||
ef416fc2 | 1213 | /* |
1214 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1215 | */ | |
1216 | ||
1217 | char * /* O - Line or NULL */ | |
1218 | httpGets(char *line, /* I - Line to read into */ | |
1219 | int length, /* I - Max length of buffer */ | |
568fa3fa | 1220 | http_t *http) /* I - Connection to server */ |
ef416fc2 | 1221 | { |
1222 | char *lineptr, /* Pointer into line */ | |
1223 | *lineend, /* End of line */ | |
1224 | *bufptr, /* Pointer into input buffer */ | |
1225 | *bufend; /* Pointer to end of buffer */ | |
1226 | int bytes, /* Number of bytes read */ | |
1227 | eol; /* End-of-line? */ | |
1228 | ||
1229 | ||
e07d4801 | 1230 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1231 | |
0fa6c7fa | 1232 | if (!http || !line || length <= 1) |
ef416fc2 | 1233 | return (NULL); |
1234 | ||
1235 | /* | |
1236 | * Read a line from the buffer... | |
1237 | */ | |
f11a948a MS |
1238 | |
1239 | http->error = 0; | |
1240 | lineptr = line; | |
1241 | lineend = line + length - 1; | |
1242 | eol = 0; | |
ef416fc2 | 1243 | |
1244 | while (lineptr < lineend) | |
1245 | { | |
1246 | /* | |
1247 | * Pre-load the buffer as needed... | |
1248 | */ | |
1249 | ||
1250 | #ifdef WIN32 | |
1251 | WSASetLastError(0); | |
1252 | #else | |
1253 | errno = 0; | |
1254 | #endif /* WIN32 */ | |
1255 | ||
1256 | while (http->used == 0) | |
1257 | { | |
1258 | /* | |
1259 | * No newline; see if there is more data to be read... | |
1260 | */ | |
1261 | ||
85dda01c | 1262 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1263 | { |
f228370c MS |
1264 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1265 | continue; | |
1266 | ||
e07d4801 | 1267 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1268 | #ifdef WIN32 |
1269 | http->error = WSAETIMEDOUT; | |
1270 | #else | |
89d46774 | 1271 | http->error = ETIMEDOUT; |
b86bc4cf | 1272 | #endif /* WIN32 */ |
ef416fc2 | 1273 | return (NULL); |
89d46774 | 1274 | } |
ef416fc2 | 1275 | |
0fa6c7fa MS |
1276 | bytes = http_read(http, http->buffer + http->used, |
1277 | HTTP_MAX_BUFFER - http->used); | |
ef416fc2 | 1278 | |
0fa6c7fa | 1279 | DEBUG_printf(("4httpGets: read %d bytes.", bytes)); |
12f89d24 | 1280 | |
ef416fc2 | 1281 | if (bytes < 0) |
1282 | { | |
1283 | /* | |
1284 | * Nope, can't get a line this time... | |
1285 | */ | |
1286 | ||
1287 | #ifdef WIN32 | |
cc754834 MS |
1288 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1289 | ||
10d09e33 | 1290 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1291 | continue; |
10d09e33 MS |
1292 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1293 | { | |
1294 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1295 | continue; | |
1296 | ||
1297 | http->error = WSAGetLastError(); | |
1298 | } | |
cc754834 | 1299 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1300 | { |
1301 | http->error = WSAGetLastError(); | |
1302 | continue; | |
1303 | } | |
1304 | ||
ef416fc2 | 1305 | #else |
e07d4801 | 1306 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1307 | |
10d09e33 | 1308 | if (errno == EINTR) |
ef416fc2 | 1309 | continue; |
10d09e33 MS |
1310 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1311 | { | |
1312 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1313 | continue; | |
1314 | else if (!http->timeout_cb && errno == EAGAIN) | |
1315 | continue; | |
1316 | ||
1317 | http->error = errno; | |
1318 | } | |
ef416fc2 | 1319 | else if (errno != http->error) |
1320 | { | |
1321 | http->error = errno; | |
1322 | continue; | |
1323 | } | |
1324 | #endif /* WIN32 */ | |
1325 | ||
1326 | return (NULL); | |
1327 | } | |
1328 | else if (bytes == 0) | |
1329 | { | |
1330 | http->error = EPIPE; | |
1331 | ||
1332 | return (NULL); | |
1333 | } | |
1334 | ||
1335 | /* | |
1336 | * Yup, update the amount used... | |
1337 | */ | |
1338 | ||
1339 | http->used += bytes; | |
1340 | } | |
1341 | ||
1342 | /* | |
1343 | * Now copy as much of the current line as possible... | |
1344 | */ | |
1345 | ||
1346 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1347 | lineptr < lineend && bufptr < bufend;) | |
1348 | { | |
1349 | if (*bufptr == 0x0a) | |
1350 | { | |
1351 | eol = 1; | |
1352 | bufptr ++; | |
1353 | break; | |
1354 | } | |
1355 | else if (*bufptr == 0x0d) | |
1356 | bufptr ++; | |
1357 | else | |
1358 | *lineptr++ = *bufptr++; | |
1359 | } | |
1360 | ||
b86bc4cf | 1361 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1362 | if (http->used > 0) |
1363 | memmove(http->buffer, bufptr, http->used); | |
1364 | ||
1365 | if (eol) | |
1366 | { | |
1367 | /* | |
1368 | * End of line... | |
1369 | */ | |
1370 | ||
1371 | http->activity = time(NULL); | |
1372 | ||
1373 | *lineptr = '\0'; | |
ef55b745 | 1374 | |
e07d4801 | 1375 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1376 | |
1377 | return (line); | |
1378 | } | |
1379 | } | |
1380 | ||
e07d4801 | 1381 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1382 | |
1383 | return (NULL); | |
1384 | } | |
1385 | ||
1386 | ||
a2326b5b MS |
1387 | /* |
1388 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1389 | */ | |
1390 | ||
1391 | http_state_t /* O - HTTP state */ | |
1392 | httpGetState(http_t *http) /* I - Connection to server */ | |
1393 | { | |
a469f8a5 | 1394 | return (http ? http->state : HTTP_STATE_ERROR); |
a2326b5b MS |
1395 | } |
1396 | ||
1397 | ||
1398 | /* | |
1399 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1400 | * | |
f3c17241 | 1401 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1402 | */ |
1403 | ||
1404 | http_status_t /* O - HTTP status */ | |
1405 | httpGetStatus(http_t *http) /* I - Connection to server */ | |
1406 | { | |
cb7f98ee | 1407 | return (http ? http->status : HTTP_STATUS_ERROR); |
a2326b5b MS |
1408 | } |
1409 | ||
1410 | ||
1411 | /* | |
1412 | * 'httpGetSubField()' - Get a sub-field value. | |
1413 | * | |
1414 | * @deprecated@ | |
1415 | */ | |
1416 | ||
1417 | char * /* O - Value or NULL */ | |
1418 | httpGetSubField(http_t *http, /* I - Connection to server */ | |
1419 | http_field_t field, /* I - Field index */ | |
1420 | const char *name, /* I - Name of sub-field */ | |
1421 | char *value) /* O - Value string */ | |
1422 | { | |
1423 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1424 | } | |
1425 | ||
1426 | ||
1427 | /* | |
1428 | * 'httpGetSubField2()' - Get a sub-field value. | |
1429 | * | |
f3c17241 | 1430 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1431 | */ |
1432 | ||
1433 | char * /* O - Value or NULL */ | |
1434 | httpGetSubField2(http_t *http, /* I - Connection to server */ | |
1435 | http_field_t field, /* I - Field index */ | |
1436 | const char *name, /* I - Name of sub-field */ | |
1437 | char *value, /* O - Value string */ | |
1438 | int valuelen) /* I - Size of value buffer */ | |
1439 | { | |
1440 | const char *fptr; /* Pointer into field */ | |
1441 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1442 | *ptr, /* Pointer into string buffer */ | |
1443 | *end; /* End of value buffer */ | |
1444 | ||
1445 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " | |
1446 | "valuelen=%d)", http, field, name, value, valuelen)); | |
1447 | ||
1448 | if (!http || !name || !value || valuelen < 2 || | |
1449 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1450 | return (NULL); | |
1451 | ||
1452 | end = value + valuelen - 1; | |
1453 | ||
1454 | for (fptr = http->fields[field]; *fptr;) | |
1455 | { | |
1456 | /* | |
1457 | * Skip leading whitespace... | |
1458 | */ | |
1459 | ||
1460 | while (_cups_isspace(*fptr)) | |
1461 | fptr ++; | |
1462 | ||
1463 | if (*fptr == ',') | |
1464 | { | |
1465 | fptr ++; | |
1466 | continue; | |
1467 | } | |
1468 | ||
1469 | /* | |
1470 | * Get the sub-field name... | |
1471 | */ | |
1472 | ||
1473 | for (ptr = temp; | |
1474 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1475 | ptr < (temp + sizeof(temp) - 1); | |
1476 | *ptr++ = *fptr++); | |
1477 | ||
1478 | *ptr = '\0'; | |
1479 | ||
1480 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1481 | ||
1482 | /* | |
1483 | * Skip trailing chars up to the '='... | |
1484 | */ | |
1485 | ||
1486 | while (_cups_isspace(*fptr)) | |
1487 | fptr ++; | |
1488 | ||
1489 | if (!*fptr) | |
1490 | break; | |
1491 | ||
1492 | if (*fptr != '=') | |
1493 | continue; | |
1494 | ||
1495 | /* | |
1496 | * Skip = and leading whitespace... | |
1497 | */ | |
1498 | ||
1499 | fptr ++; | |
1500 | ||
1501 | while (_cups_isspace(*fptr)) | |
1502 | fptr ++; | |
1503 | ||
1504 | if (*fptr == '\"') | |
1505 | { | |
1506 | /* | |
1507 | * Read quoted string... | |
1508 | */ | |
1509 | ||
1510 | for (ptr = value, fptr ++; | |
1511 | *fptr && *fptr != '\"' && ptr < end; | |
1512 | *ptr++ = *fptr++); | |
1513 | ||
1514 | *ptr = '\0'; | |
1515 | ||
1516 | while (*fptr && *fptr != '\"') | |
1517 | fptr ++; | |
1518 | ||
1519 | if (*fptr) | |
1520 | fptr ++; | |
1521 | } | |
1522 | else | |
1523 | { | |
1524 | /* | |
1525 | * Read unquoted string... | |
1526 | */ | |
1527 | ||
1528 | for (ptr = value; | |
1529 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1530 | *ptr++ = *fptr++); | |
1531 | ||
1532 | *ptr = '\0'; | |
1533 | ||
1534 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1535 | fptr ++; | |
1536 | } | |
1537 | ||
1538 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1539 | ||
1540 | /* | |
1541 | * See if this is the one... | |
1542 | */ | |
1543 | ||
1544 | if (!strcmp(name, temp)) | |
1545 | { | |
1546 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1547 | return (value); | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | value[0] = '\0'; | |
1552 | ||
1553 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1554 | ||
1555 | return (NULL); | |
1556 | } | |
1557 | ||
1558 | ||
1559 | /* | |
1560 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1561 | */ | |
1562 | ||
1563 | http_version_t /* O - Version number */ | |
1564 | httpGetVersion(http_t *http) /* I - Connection to server */ | |
1565 | { | |
a469f8a5 | 1566 | return (http ? http->version : HTTP_VERSION_1_0); |
a2326b5b MS |
1567 | } |
1568 | ||
1569 | ||
ef416fc2 | 1570 | /* |
1571 | * 'httpHead()' - Send a HEAD request to the server. | |
1572 | */ | |
1573 | ||
1574 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1575 | httpHead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1576 | const char *uri) /* I - URI for head */ |
1577 | { | |
e07d4801 | 1578 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1579 | return (http_send(http, HTTP_STATE_HEAD, uri)); |
ef416fc2 | 1580 | } |
1581 | ||
1582 | ||
1583 | /* | |
1584 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1585 | * default HTTP proxy (if any). | |
1586 | */ | |
1587 | ||
1588 | void | |
1589 | httpInitialize(void) | |
1590 | { | |
6d2f911b MS |
1591 | static int initialized = 0; /* Have we been called before? */ |
1592 | #ifdef WIN32 | |
1593 | WSADATA winsockdata; /* WinSock data */ | |
1594 | #endif /* WIN32 */ | |
ef416fc2 | 1595 | #ifdef HAVE_LIBSSL |
6d2f911b MS |
1596 | int i; /* Looping var */ |
1597 | unsigned char data[1024]; /* Seed data */ | |
ef416fc2 | 1598 | #endif /* HAVE_LIBSSL */ |
1599 | ||
ef416fc2 | 1600 | |
6d2f911b MS |
1601 | _cupsGlobalLock(); |
1602 | if (initialized) | |
1603 | { | |
1604 | _cupsGlobalUnlock(); | |
1605 | return; | |
1606 | } | |
1607 | ||
1608 | #ifdef WIN32 | |
c7017ecc | 1609 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1610 | |
fa73b229 | 1611 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1612 | /* |
1613 | * Ignore SIGPIPE signals... | |
1614 | */ | |
1615 | ||
fa73b229 | 1616 | # ifdef HAVE_SIGSET |
1617 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1618 | |
fa73b229 | 1619 | # elif defined(HAVE_SIGACTION) |
1620 | struct sigaction action; /* POSIX sigaction data */ | |
1621 | ||
1622 | ||
ef416fc2 | 1623 | memset(&action, 0, sizeof(action)); |
1624 | action.sa_handler = SIG_IGN; | |
1625 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1626 | |
fa73b229 | 1627 | # else |
ef416fc2 | 1628 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1629 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1630 | #endif /* WIN32 */ |
1631 | ||
1632 | #ifdef HAVE_GNUTLS | |
6d2f911b MS |
1633 | /* |
1634 | * Initialize GNU TLS... | |
1635 | */ | |
1636 | ||
ef416fc2 | 1637 | gnutls_global_init(); |
ef416fc2 | 1638 | |
6d2f911b MS |
1639 | #elif defined(HAVE_LIBSSL) |
1640 | /* | |
1641 | * Initialize OpenSSL... | |
1642 | */ | |
1643 | ||
ef416fc2 | 1644 | SSL_load_error_strings(); |
1645 | SSL_library_init(); | |
1646 | ||
1647 | /* | |
1648 | * Using the current time is a dubious random seed, but on some systems | |
1649 | * it is the best we can do (on others, this seed isn't even used...) | |
1650 | */ | |
1651 | ||
6d2f911b | 1652 | CUPS_SRAND(time(NULL)); |
ef416fc2 | 1653 | |
1654 | for (i = 0; i < sizeof(data); i ++) | |
6d2f911b | 1655 | data[i] = CUPS_RAND(); |
ef416fc2 | 1656 | |
dfd5680b | 1657 | RAND_seed(data, sizeof(data)); |
6d2f911b MS |
1658 | #endif /* HAVE_GNUTLS */ |
1659 | ||
1660 | initialized = 1; | |
1661 | _cupsGlobalUnlock(); | |
ef416fc2 | 1662 | } |
1663 | ||
1664 | ||
1665 | /* | |
1666 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1667 | */ | |
1668 | ||
1669 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1670 | httpOptions(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1671 | const char *uri) /* I - URI for options */ |
1672 | { | |
cb7f98ee | 1673 | return (http_send(http, HTTP_STATE_OPTIONS, uri)); |
ef416fc2 | 1674 | } |
1675 | ||
1676 | ||
6d2f911b | 1677 | /* |
a469f8a5 | 1678 | * 'httpPeek()' - Peek at data from a HTTP connection. |
6d2f911b MS |
1679 | * |
1680 | * This function copies available data from the given HTTP connection, reading | |
1681 | * a buffer as needed. The data is still available for reading using | |
1682 | * @link httpRead@ or @link httpRead2@. | |
1683 | * | |
1684 | * For non-blocking connections the usual timeouts apply. | |
a469f8a5 | 1685 | * |
9c0e8e5d | 1686 | * @since CUPS 1.7/OS X 10.9@ |
6d2f911b MS |
1687 | */ |
1688 | ||
1689 | ssize_t /* O - Number of bytes copied */ | |
a469f8a5 | 1690 | httpPeek(http_t *http, /* I - Connection to server */ |
0fa6c7fa MS |
1691 | char *buffer, /* I - Buffer for data */ |
1692 | size_t length) /* I - Maximum number of bytes */ | |
6d2f911b MS |
1693 | { |
1694 | ssize_t bytes; /* Bytes read */ | |
1695 | char len[32]; /* Length string */ | |
1696 | ||
1697 | ||
a469f8a5 | 1698 | DEBUG_printf(("httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
6d2f911b MS |
1699 | http, buffer, CUPS_LLCAST length)); |
1700 | ||
1701 | if (http == NULL || buffer == NULL) | |
1702 | return (-1); | |
1703 | ||
1704 | http->activity = time(NULL); | |
1705 | http->error = 0; | |
1706 | ||
1707 | if (length <= 0) | |
1708 | return (0); | |
1709 | ||
a469f8a5 | 1710 | if (http->data_encoding == HTTP_ENCODING_CHUNKED && |
6d2f911b MS |
1711 | http->data_remaining <= 0) |
1712 | { | |
a469f8a5 | 1713 | DEBUG_puts("2httpPeek: Getting chunk length..."); |
6d2f911b MS |
1714 | |
1715 | if (httpGets(len, sizeof(len), http) == NULL) | |
1716 | { | |
a469f8a5 | 1717 | DEBUG_puts("1httpPeek: Could not get length!"); |
6d2f911b MS |
1718 | return (0); |
1719 | } | |
1720 | ||
db8b865d MS |
1721 | if (!len[0]) |
1722 | { | |
1723 | DEBUG_puts("1httpPeek: Blank chunk length, trying again..."); | |
1724 | if (!httpGets(len, sizeof(len), http)) | |
1725 | { | |
1726 | DEBUG_puts("1httpPeek: Could not get chunk length."); | |
1727 | return (0); | |
1728 | } | |
1729 | } | |
1730 | ||
6d2f911b | 1731 | http->data_remaining = strtoll(len, NULL, 16); |
db8b865d | 1732 | |
6d2f911b MS |
1733 | if (http->data_remaining < 0) |
1734 | { | |
a469f8a5 | 1735 | DEBUG_puts("1httpPeek: Negative chunk length!"); |
6d2f911b MS |
1736 | return (0); |
1737 | } | |
1738 | } | |
1739 | ||
a469f8a5 | 1740 | DEBUG_printf(("2httpPeek: data_remaining=" CUPS_LLFMT, |
6d2f911b MS |
1741 | CUPS_LLCAST http->data_remaining)); |
1742 | ||
0fa6c7fa | 1743 | if (http->data_remaining <= 0 && http->data_encoding != HTTP_ENCODING_FIELDS) |
6d2f911b MS |
1744 | { |
1745 | /* | |
1746 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1747 | * data, go idle... | |
1748 | */ | |
1749 | ||
c41769ff MS |
1750 | #ifdef HAVE_LIBZ |
1751 | if (http->coding) | |
1752 | http_content_coding_finish(http); | |
1753 | #endif /* HAVE_LIBZ */ | |
1754 | ||
0fa6c7fa MS |
1755 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
1756 | httpGets(len, sizeof(len), http); | |
1757 | ||
a469f8a5 | 1758 | if (http->state == HTTP_STATE_POST_RECV) |
6d2f911b MS |
1759 | http->state ++; |
1760 | else | |
cb7f98ee | 1761 | http->state = HTTP_STATE_STATUS; |
a469f8a5 MS |
1762 | |
1763 | DEBUG_printf(("1httpPeek: 0-length chunk, set state to %s.", | |
cb7f98ee | 1764 | http_state_string(http->state))); |
6d2f911b MS |
1765 | |
1766 | /* | |
1767 | * Prevent future reads for this request... | |
1768 | */ | |
1769 | ||
a469f8a5 | 1770 | http->data_encoding = HTTP_ENCODING_FIELDS; |
6d2f911b MS |
1771 | |
1772 | return (0); | |
1773 | } | |
0fa6c7fa | 1774 | else if (length > (size_t)http->data_remaining) |
6d2f911b MS |
1775 | length = (size_t)http->data_remaining; |
1776 | ||
0fa6c7fa MS |
1777 | #ifdef HAVE_LIBZ |
1778 | if (http->used == 0 && | |
1779 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0)) | |
1780 | #else | |
6d2f911b | 1781 | if (http->used == 0) |
0fa6c7fa | 1782 | #endif /* HAVE_LIBZ */ |
6d2f911b MS |
1783 | { |
1784 | /* | |
1785 | * Buffer small reads for better performance... | |
1786 | */ | |
1787 | ||
3e7fe0ca MS |
1788 | ssize_t buflen; /* Length of read for buffer */ |
1789 | ||
f228370c MS |
1790 | if (!http->blocking) |
1791 | { | |
85dda01c | 1792 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1793 | { |
1794 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1795 | continue; | |
1796 | ||
1797 | return (0); | |
1798 | } | |
1799 | } | |
6d2f911b MS |
1800 | |
1801 | if (http->data_remaining > sizeof(http->buffer)) | |
3e7fe0ca | 1802 | buflen = sizeof(http->buffer); |
6d2f911b | 1803 | else |
3e7fe0ca MS |
1804 | buflen = http->data_remaining; |
1805 | ||
a469f8a5 | 1806 | DEBUG_printf(("2httpPeek: Reading %d bytes into buffer.", (int)buflen)); |
db8b865d | 1807 | bytes = http_read(http, http->buffer, buflen); |
3e7fe0ca | 1808 | |
a469f8a5 | 1809 | DEBUG_printf(("2httpPeek: Read " CUPS_LLFMT " bytes into buffer.", |
3e7fe0ca | 1810 | CUPS_LLCAST bytes)); |
db8b865d MS |
1811 | if (bytes > 0) |
1812 | { | |
3e7fe0ca | 1813 | #ifdef DEBUG |
db8b865d | 1814 | http_debug_hex("httpPeek", http->buffer, (int)bytes); |
3e7fe0ca MS |
1815 | #endif /* DEBUG */ |
1816 | ||
db8b865d MS |
1817 | http->used = bytes; |
1818 | } | |
6d2f911b MS |
1819 | } |
1820 | ||
c1420c87 MS |
1821 | #ifdef HAVE_LIBZ |
1822 | if (http->coding) | |
1823 | { | |
db8b865d | 1824 | # ifdef HAVE_INFLATECOPY |
c1420c87 | 1825 | int zerr; /* Decompressor error */ |
c1420c87 MS |
1826 | z_stream stream; /* Copy of decompressor stream */ |
1827 | ||
0fa6c7fa MS |
1828 | if (http->used > 0 && http->stream.avail_in < HTTP_MAX_BUFFER) |
1829 | { | |
1830 | size_t buflen = buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
1831 | /* Number of bytes to copy */ | |
1832 | ||
1833 | if (http->stream.avail_in > 0 && | |
1834 | http->stream.next_in > http->dbuffer) | |
1835 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
1836 | ||
1837 | http->stream.next_in = http->dbuffer; | |
1838 | ||
1839 | if (buflen > http->data_remaining) | |
1840 | buflen = http->data_remaining; | |
1841 | ||
1842 | if (buflen > http->used) | |
1843 | buflen = http->used; | |
1844 | ||
1845 | DEBUG_printf(("1httpPeek: Copying %d more bytes of data into " | |
1846 | "decompression buffer.", (int)buflen)); | |
1847 | ||
1848 | memcpy(http->dbuffer + http->stream.avail_in, http->buffer, buflen); | |
1849 | http->stream.avail_in += buflen; | |
1850 | http->used -= buflen; | |
1851 | http->data_remaining -= buflen; | |
1852 | ||
1853 | if (http->used > 0) | |
1854 | memmove(http->buffer, http->buffer + buflen, http->used); | |
1855 | } | |
c1420c87 MS |
1856 | |
1857 | DEBUG_printf(("2httpPeek: length=%d, avail_in=%d", (int)length, | |
0fa6c7fa | 1858 | (int)http->stream.avail_in)); |
c1420c87 MS |
1859 | |
1860 | if (inflateCopy(&stream, &(http->stream)) != Z_OK) | |
1861 | { | |
1862 | DEBUG_puts("2httpPeek: Unable to copy decompressor stream."); | |
1863 | http->error = ENOMEM; | |
1864 | return (-1); | |
1865 | } | |
1866 | ||
c1420c87 MS |
1867 | stream.next_out = (Bytef *)buffer; |
1868 | stream.avail_out = length; | |
1869 | ||
1870 | zerr = inflate(&stream, Z_SYNC_FLUSH); | |
1871 | inflateEnd(&stream); | |
1872 | ||
1873 | if (zerr < Z_OK) | |
1874 | { | |
1875 | DEBUG_printf(("2httpPeek: zerr=%d", zerr)); | |
0fa6c7fa MS |
1876 | #ifdef DEBUG |
1877 | http_debug_hex("2httpPeek", (char *)http->dbuffer, | |
1878 | http->stream.avail_in); | |
1879 | #endif /* DEBUG */ | |
1880 | ||
c1420c87 MS |
1881 | http->error = EIO; |
1882 | return (-1); | |
1883 | } | |
1884 | ||
1885 | bytes = length - http->stream.avail_out; | |
db8b865d MS |
1886 | |
1887 | # else | |
1888 | DEBUG_puts("2httpPeek: No inflateCopy on this platform, httpPeek does not " | |
1889 | "work with compressed streams."); | |
1890 | return (-1); | |
1891 | # endif /* HAVE_INFLATECOPY */ | |
c1420c87 MS |
1892 | } |
1893 | else | |
1894 | #endif /* HAVE_LIBZ */ | |
6d2f911b MS |
1895 | if (http->used > 0) |
1896 | { | |
1897 | if (length > (size_t)http->used) | |
1898 | length = (size_t)http->used; | |
1899 | ||
1900 | bytes = (ssize_t)length; | |
1901 | ||
a469f8a5 | 1902 | DEBUG_printf(("2httpPeek: grabbing %d bytes from input buffer...", |
6d2f911b MS |
1903 | (int)bytes)); |
1904 | ||
1905 | memcpy(buffer, http->buffer, length); | |
1906 | } | |
1907 | else | |
1908 | bytes = 0; | |
1909 | ||
1910 | if (bytes < 0) | |
1911 | { | |
1912 | #ifdef WIN32 | |
cc754834 MS |
1913 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1914 | bytes = 0; | |
1915 | else | |
1916 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1917 | #else |
1918 | if (errno == EINTR || errno == EAGAIN) | |
1919 | bytes = 0; | |
1920 | else | |
1921 | http->error = errno; | |
1922 | #endif /* WIN32 */ | |
1923 | } | |
1924 | else if (bytes == 0) | |
1925 | { | |
1926 | http->error = EPIPE; | |
1927 | return (0); | |
1928 | } | |
1929 | ||
6d2f911b MS |
1930 | return (bytes); |
1931 | } | |
1932 | ||
c1420c87 MS |
1933 | /* For OS X 10.8 and earlier */ |
1934 | ssize_t _httpPeek(http_t *http, char *buffer, size_t length) | |
1935 | { return (httpPeek(http, buffer, length)); } | |
1936 | ||
6d2f911b | 1937 | |
ef416fc2 | 1938 | /* |
1939 | * 'httpPost()' - Send a POST request to the server. | |
1940 | */ | |
1941 | ||
1942 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1943 | httpPost(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1944 | const char *uri) /* I - URI for post */ |
1945 | { | |
cb7f98ee | 1946 | return (http_send(http, HTTP_STATE_POST, uri)); |
ef416fc2 | 1947 | } |
1948 | ||
1949 | ||
1950 | /* | |
1951 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1952 | * |
1953 | * @private@ | |
ef416fc2 | 1954 | */ |
1955 | ||
1956 | int /* O - Number of bytes written */ | |
568fa3fa | 1957 | httpPrintf(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1958 | const char *format, /* I - printf-style format string */ |
1959 | ...) /* I - Additional args as needed */ | |
1960 | { | |
1961 | int bytes; /* Number of bytes to write */ | |
1962 | char buf[16384]; /* Buffer for formatted string */ | |
1963 | va_list ap; /* Variable argument pointer */ | |
1964 | ||
1965 | ||
e07d4801 | 1966 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1967 | |
1968 | va_start(ap, format); | |
1969 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1970 | va_end(ap); | |
1971 | ||
a469f8a5 | 1972 | DEBUG_printf(("3httpPrintf: (%d bytes) %s", bytes, buf)); |
ef416fc2 | 1973 | |
a469f8a5 | 1974 | if (http->data_encoding == HTTP_ENCODING_FIELDS) |
d09495fa | 1975 | return (httpWrite2(http, buf, bytes)); |
1976 | else | |
ef416fc2 | 1977 | { |
d09495fa | 1978 | if (http->wused) |
1979 | { | |
e07d4801 | 1980 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1981 | |
d09495fa | 1982 | if (httpFlushWrite(http) < 0) |
1983 | return (-1); | |
1984 | } | |
ef416fc2 | 1985 | |
d09495fa | 1986 | return (http_write(http, buf, bytes)); |
1987 | } | |
ef416fc2 | 1988 | } |
1989 | ||
1990 | ||
1991 | /* | |
1992 | * 'httpPut()' - Send a PUT request to the server. | |
1993 | */ | |
1994 | ||
1995 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1996 | httpPut(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1997 | const char *uri) /* I - URI to put */ |
1998 | { | |
e07d4801 | 1999 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 2000 | return (http_send(http, HTTP_STATE_PUT, uri)); |
ef416fc2 | 2001 | } |
2002 | ||
2003 | ||
2004 | /* | |
2005 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 2006 | * |
2007 | * This function is deprecated. Use the httpRead2() function which can | |
2008 | * read more than 2GB of data. | |
2009 | * | |
2010 | * @deprecated@ | |
ef416fc2 | 2011 | */ |
2012 | ||
2013 | int /* O - Number of bytes read */ | |
568fa3fa | 2014 | httpRead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2015 | char *buffer, /* I - Buffer for data */ |
2016 | int length) /* I - Maximum number of bytes */ | |
2017 | { | |
a4d04587 | 2018 | return ((int)httpRead2(http, buffer, length)); |
2019 | } | |
2020 | ||
2021 | ||
2022 | /* | |
2023 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 2024 | * |
f3c17241 | 2025 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 2026 | */ |
2027 | ||
2028 | ssize_t /* O - Number of bytes read */ | |
568fa3fa | 2029 | httpRead2(http_t *http, /* I - Connection to server */ |
a4d04587 | 2030 | char *buffer, /* I - Buffer for data */ |
2031 | size_t length) /* I - Maximum number of bytes */ | |
2032 | { | |
2033 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 2034 | |
2035 | ||
db8b865d | 2036 | #ifdef HAVE_LIBZ |
a469f8a5 | 2037 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT |
0fa6c7fa | 2038 | ") coding=%d data_encoding=%d data_remaining=" CUPS_LLFMT, |
db8b865d MS |
2039 | http, buffer, CUPS_LLCAST length, |
2040 | http->coding, | |
0fa6c7fa | 2041 | http->data_encoding, CUPS_LLCAST http->data_remaining)); |
db8b865d MS |
2042 | #else |
2043 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT | |
2044 | ") data_encoding=%d data_remaining=" CUPS_LLFMT, | |
2045 | http, buffer, CUPS_LLCAST length, | |
2046 | http->data_encoding, CUPS_LLCAST http->data_remaining)); | |
2047 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2048 | |
2049 | if (http == NULL || buffer == NULL) | |
2050 | return (-1); | |
2051 | ||
2052 | http->activity = time(NULL); | |
f11a948a | 2053 | http->error = 0; |
ef416fc2 | 2054 | |
2055 | if (length <= 0) | |
2056 | return (0); | |
2057 | ||
a469f8a5 | 2058 | #ifdef HAVE_LIBZ |
0fa6c7fa | 2059 | if (http->coding) |
ef416fc2 | 2060 | { |
0fa6c7fa | 2061 | do |
f228370c | 2062 | { |
0fa6c7fa | 2063 | if (http->stream.avail_in > 0) |
f228370c | 2064 | { |
0fa6c7fa | 2065 | int zerr; /* Decompressor error */ |
f228370c | 2066 | |
0fa6c7fa MS |
2067 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d", |
2068 | (int)http->stream.avail_in, (int)length)); | |
ef416fc2 | 2069 | |
0fa6c7fa MS |
2070 | http->stream.next_out = (Bytef *)buffer; |
2071 | http->stream.avail_out = length; | |
83e08001 | 2072 | |
0fa6c7fa | 2073 | if ((zerr = inflate(&(http->stream), Z_SYNC_FLUSH)) < Z_OK) |
83e08001 | 2074 | { |
0fa6c7fa | 2075 | DEBUG_printf(("2httpRead2: zerr=%d", zerr)); |
12f89d24 | 2076 | #ifdef DEBUG |
0fa6c7fa MS |
2077 | http_debug_hex("2httpRead2", (char *)http->dbuffer, |
2078 | http->stream.avail_in); | |
12f89d24 | 2079 | #endif /* DEBUG */ |
83e08001 | 2080 | |
0fa6c7fa MS |
2081 | http->error = EIO; |
2082 | return (-1); | |
2083 | } | |
a469f8a5 | 2084 | |
0fa6c7fa | 2085 | bytes = length - http->stream.avail_out; |
a469f8a5 | 2086 | |
0fa6c7fa MS |
2087 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d, bytes=%d", |
2088 | http->stream.avail_in, http->stream.avail_out, | |
2089 | (int)bytes)); | |
2090 | } | |
2091 | else | |
2092 | bytes = 0; | |
a469f8a5 | 2093 | |
0fa6c7fa MS |
2094 | if (bytes == 0) |
2095 | { | |
2096 | ssize_t buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
2097 | /* Additional bytes for buffer */ | |
a469f8a5 | 2098 | |
0fa6c7fa MS |
2099 | if (buflen > 0) |
2100 | { | |
2101 | if (http->stream.avail_in > 0 && | |
2102 | http->stream.next_in > http->dbuffer) | |
2103 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
2104 | ||
2105 | http->stream.next_in = http->dbuffer; | |
2106 | ||
2107 | DEBUG_printf(("1httpRead2: Reading up to %d more bytes of data into " | |
2108 | "decompression buffer.", (int)buflen)); | |
2109 | ||
2110 | if (http->data_remaining > 0) | |
2111 | { | |
2112 | if (buflen > http->data_remaining) | |
2113 | buflen = http->data_remaining; | |
2114 | ||
2115 | bytes = http_read_buffered(http, | |
2116 | (char *)http->dbuffer + | |
2117 | http->stream.avail_in, buflen); | |
2118 | } | |
2119 | else if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2120 | bytes = http_read_chunk(http, | |
2121 | (char *)http->dbuffer + | |
2122 | http->stream.avail_in, buflen); | |
2123 | else | |
2124 | bytes = 0; | |
2125 | ||
2126 | if (bytes < 0) | |
2127 | return (bytes); | |
2128 | else if (bytes == 0) | |
2129 | break; | |
2130 | ||
db8b865d MS |
2131 | DEBUG_printf(("1httpRead2: Adding " CUPS_LLFMT " bytes to " |
2132 | "decompression buffer.", CUPS_LLCAST bytes)); | |
2133 | ||
0fa6c7fa MS |
2134 | http->data_remaining -= bytes; |
2135 | http->stream.avail_in += bytes; | |
db8b865d | 2136 | |
cb7f98ee MS |
2137 | if (http->data_remaining <= 0 && |
2138 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2139 | { | |
2140 | /* | |
2141 | * Read the trailing blank line now... | |
2142 | */ | |
2143 | ||
2144 | char len[32]; /* Length string */ | |
2145 | ||
2146 | httpGets(len, sizeof(len), http); | |
2147 | } | |
2148 | ||
db8b865d | 2149 | bytes = 0; |
0fa6c7fa MS |
2150 | } |
2151 | else | |
2152 | return (0); | |
2153 | } | |
a469f8a5 | 2154 | } |
0fa6c7fa | 2155 | while (bytes == 0); |
a469f8a5 MS |
2156 | } |
2157 | else | |
2158 | #endif /* HAVE_LIBZ */ | |
0fa6c7fa | 2159 | if (http->data_remaining == 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 2160 | { |
0fa6c7fa | 2161 | if ((bytes = http_read_chunk(http, buffer, length)) > 0) |
cb7f98ee | 2162 | { |
0fa6c7fa | 2163 | http->data_remaining -= bytes; |
cb7f98ee MS |
2164 | |
2165 | if (http->data_remaining <= 0) | |
2166 | { | |
2167 | /* | |
2168 | * Read the trailing blank line now... | |
2169 | */ | |
2170 | ||
2171 | char len[32]; /* Length string */ | |
2172 | ||
2173 | httpGets(len, sizeof(len), http); | |
2174 | } | |
2175 | } | |
ef416fc2 | 2176 | } |
0fa6c7fa | 2177 | else if (http->data_remaining <= 0) |
ef416fc2 | 2178 | { |
0fa6c7fa MS |
2179 | /* |
2180 | * No more data to read... | |
2181 | */ | |
ef416fc2 | 2182 | |
0fa6c7fa | 2183 | return (0); |
ef416fc2 | 2184 | } |
ef416fc2 | 2185 | else |
2186 | { | |
0fa6c7fa MS |
2187 | DEBUG_printf(("1httpRead2: Reading up to %d bytes into buffer.", |
2188 | (int)length)); | |
ef416fc2 | 2189 | |
db8b865d MS |
2190 | if (length > (size_t)http->data_remaining) |
2191 | length = (size_t)http->data_remaining; | |
ef416fc2 | 2192 | |
0fa6c7fa | 2193 | if ((bytes = http_read_buffered(http, buffer, length)) > 0) |
cb7f98ee | 2194 | { |
0fa6c7fa | 2195 | http->data_remaining -= bytes; |
cb7f98ee MS |
2196 | |
2197 | if (http->data_remaining <= 0 && | |
2198 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2199 | { | |
2200 | /* | |
2201 | * Read the trailing blank line now... | |
2202 | */ | |
2203 | ||
2204 | char len[32]; /* Length string */ | |
2205 | ||
2206 | httpGets(len, sizeof(len), http); | |
2207 | } | |
2208 | } | |
ef416fc2 | 2209 | } |
2210 | ||
0fa6c7fa MS |
2211 | if ( |
2212 | #ifdef HAVE_LIBZ | |
2213 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0) && | |
2214 | #endif /* HAVE_LIBZ */ | |
2215 | ((http->data_remaining <= 0 && | |
2216 | http->data_encoding == HTTP_ENCODING_LENGTH) || | |
2217 | (http->data_encoding == HTTP_ENCODING_CHUNKED && bytes == 0))) | |
ef416fc2 | 2218 | { |
a469f8a5 | 2219 | #ifdef HAVE_LIBZ |
0fa6c7fa MS |
2220 | if (http->coding) |
2221 | http_content_coding_finish(http); | |
a469f8a5 MS |
2222 | #endif /* HAVE_LIBZ */ |
2223 | ||
0fa6c7fa MS |
2224 | if (http->state == HTTP_STATE_POST_RECV) |
2225 | http->state ++; | |
6961465f MS |
2226 | else if (http->state == HTTP_STATE_GET_SEND || |
2227 | http->state == HTTP_STATE_POST_SEND) | |
2228 | http->state = HTTP_STATE_WAITING; | |
0fa6c7fa | 2229 | else |
cb7f98ee | 2230 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 2231 | |
0fa6c7fa | 2232 | DEBUG_printf(("1httpRead2: End of content, set state to %s.", |
cb7f98ee | 2233 | http_state_string(http->state))); |
ef416fc2 | 2234 | } |
2235 | ||
ef416fc2 | 2236 | return (bytes); |
2237 | } | |
2238 | ||
2239 | ||
2240 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
2241 | /* | |
411affcf | 2242 | * '_httpReadCDSA()' - Read function for the CDSA library. |
ef416fc2 | 2243 | */ |
2244 | ||
2245 | OSStatus /* O - -1 on error, 0 on success */ | |
2246 | _httpReadCDSA( | |
2247 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2248 | void *data, /* I - Data buffer */ | |
2249 | size_t *dataLength) /* IO - Number of bytes */ | |
2250 | { | |
411affcf | 2251 | OSStatus result; /* Return value */ |
2252 | ssize_t bytes; /* Number of bytes read */ | |
2253 | http_t *http; /* HTTP connection */ | |
2254 | ||
2255 | ||
2256 | http = (http_t *)connection; | |
e53920b9 | 2257 | |
411affcf | 2258 | if (!http->blocking) |
2259 | { | |
2260 | /* | |
2261 | * Make sure we have data before we read... | |
2262 | */ | |
e53920b9 | 2263 | |
85dda01c | 2264 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 2265 | { |
f228370c MS |
2266 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2267 | continue; | |
2268 | ||
411affcf | 2269 | http->error = ETIMEDOUT; |
2270 | return (-1); | |
2271 | } | |
2272 | } | |
ef416fc2 | 2273 | |
b423cd4c | 2274 | do |
411affcf | 2275 | { |
2276 | bytes = recv(http->fd, data, *dataLength, 0); | |
2277 | } | |
e07d4801 | 2278 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 2279 | |
b423cd4c | 2280 | if (bytes == *dataLength) |
411affcf | 2281 | { |
b423cd4c | 2282 | result = 0; |
411affcf | 2283 | } |
b423cd4c | 2284 | else if (bytes > 0) |
2285 | { | |
2286 | *dataLength = bytes; | |
2287 | result = errSSLWouldBlock; | |
2288 | } | |
2289 | else | |
2290 | { | |
2291 | *dataLength = 0; | |
fa73b229 | 2292 | |
2293 | if (bytes == 0) | |
ed486911 | 2294 | result = errSSLClosedGraceful; |
b423cd4c | 2295 | else if (errno == EAGAIN) |
2296 | result = errSSLWouldBlock; | |
b423cd4c | 2297 | else |
ed486911 | 2298 | result = errSSLClosedAbort; |
ef416fc2 | 2299 | } |
b423cd4c | 2300 | |
411affcf | 2301 | return (result); |
ef416fc2 | 2302 | } |
2303 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
2304 | ||
2305 | ||
411affcf | 2306 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
2307 | /* | |
2308 | * '_httpReadGNUTLS()' - Read function for the GNU TLS library. | |
2309 | */ | |
2310 | ||
2311 | ssize_t /* O - Number of bytes read or -1 on error */ | |
2312 | _httpReadGNUTLS( | |
111ff13a MS |
2313 | gnutls_transport_ptr_t ptr, /* I - Connection to server */ |
2314 | void *data, /* I - Buffer */ | |
2315 | size_t length) /* I - Number of bytes to read */ | |
411affcf | 2316 | { |
2317 | http_t *http; /* HTTP connection */ | |
a4845881 MS |
2318 | ssize_t bytes; /* Bytes read */ |
2319 | ||
411affcf | 2320 | |
a4845881 | 2321 | DEBUG_printf(("6_httpReadGNUTLS(ptr=%p, data=%p, length=%d)", ptr, data, (int)length)); |
411affcf | 2322 | |
2323 | http = (http_t *)ptr; | |
2324 | ||
2325 | if (!http->blocking) | |
2326 | { | |
2327 | /* | |
2328 | * Make sure we have data before we read... | |
2329 | */ | |
2330 | ||
85dda01c | 2331 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 2332 | { |
f228370c MS |
2333 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2334 | continue; | |
2335 | ||
411affcf | 2336 | http->error = ETIMEDOUT; |
2337 | return (-1); | |
2338 | } | |
2339 | } | |
2340 | ||
a4845881 MS |
2341 | bytes = recv(http->fd, data, length, 0); |
2342 | DEBUG_printf(("6_httpReadGNUTLS: bytes=%d", (int)bytes)); | |
2343 | return (bytes); | |
411affcf | 2344 | } |
2345 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
2346 | ||
2347 | ||
ef416fc2 | 2348 | /* |
a469f8a5 MS |
2349 | * 'httpReadRequest()' - Read a HTTP request from a connection. |
2350 | * | |
9c0e8e5d | 2351 | * @since CUPS 1.7/OS X 10.9@ |
ef416fc2 | 2352 | */ |
2353 | ||
a469f8a5 MS |
2354 | http_state_t /* O - New state of connection */ |
2355 | httpReadRequest(http_t *http, /* I - HTTP connection */ | |
2356 | char *uri, /* I - URI buffer */ | |
2357 | size_t urilen) /* I - Size of URI buffer */ | |
dcb445bc | 2358 | { |
a469f8a5 MS |
2359 | char line[4096], /* HTTP request line */ |
2360 | *req_method, /* HTTP request method */ | |
2361 | *req_uri, /* HTTP request URI */ | |
2362 | *req_version; /* HTTP request version number string */ | |
dcb445bc MS |
2363 | |
2364 | ||
a469f8a5 MS |
2365 | /* |
2366 | * Range check input... | |
2367 | */ | |
ef416fc2 | 2368 | |
a469f8a5 MS |
2369 | DEBUG_printf(("httpReadRequest(http=%p, uri=%p, urilen=" CUPS_LLFMT ")", |
2370 | http, uri, CUPS_LLCAST urilen)); | |
ef416fc2 | 2371 | |
a469f8a5 MS |
2372 | if (uri) |
2373 | *uri = '\0'; | |
ef416fc2 | 2374 | |
a469f8a5 | 2375 | if (!http || !uri || urilen < 1) |
dcb445bc | 2376 | { |
a469f8a5 MS |
2377 | DEBUG_puts("1httpReadRequest: Bad arguments, returning HTTP_STATE_ERROR."); |
2378 | return (HTTP_STATE_ERROR); | |
dcb445bc | 2379 | } |
a469f8a5 | 2380 | else if (http->state != HTTP_STATE_WAITING) |
1ff0402e | 2381 | { |
a469f8a5 | 2382 | DEBUG_printf(("1httpReadRequest: Bad state %s, returning HTTP_STATE_ERROR.", |
cb7f98ee | 2383 | http_state_string(http->state))); |
a469f8a5 | 2384 | return (HTTP_STATE_ERROR); |
1ff0402e | 2385 | } |
ef416fc2 | 2386 | |
2387 | /* | |
a469f8a5 | 2388 | * Reset state... |
ef416fc2 | 2389 | */ |
2390 | ||
a469f8a5 | 2391 | httpClearFields(http); |
ef416fc2 | 2392 | |
a469f8a5 MS |
2393 | http->activity = time(NULL); |
2394 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
2395 | http->data_remaining = 0; | |
2396 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2397 | http->status = HTTP_STATUS_OK; | |
2398 | http->version = HTTP_VERSION_1_1; | |
bd7854cb | 2399 | |
a29fd7dd | 2400 | /* |
a469f8a5 | 2401 | * Read a line from the socket... |
a29fd7dd MS |
2402 | */ |
2403 | ||
a469f8a5 MS |
2404 | if (!httpGets(line, sizeof(line), http)) |
2405 | { | |
2406 | DEBUG_puts("1httpReadRequest: Unable to read, returning HTTP_STATE_ERROR"); | |
2407 | return (HTTP_STATE_ERROR); | |
2408 | } | |
2409 | ||
2410 | if (!line[0]) | |
2411 | { | |
2412 | DEBUG_puts("1httpReadRequest: Blank line, returning HTTP_STATE_WAITING"); | |
2413 | return (HTTP_STATE_WAITING); | |
2414 | } | |
2415 | ||
2416 | DEBUG_printf(("1httpReadRequest: %s", line)); | |
2417 | ||
2418 | /* | |
2419 | * Parse it... | |
2420 | */ | |
2421 | ||
2422 | req_method = line; | |
2423 | req_uri = line; | |
2424 | ||
2425 | while (*req_uri && !isspace(*req_uri & 255)) | |
2426 | req_uri ++; | |
2427 | ||
2428 | if (!*req_uri) | |
2429 | { | |
2430 | DEBUG_puts("1httpReadRequest: No request URI."); | |
2431 | return (HTTP_STATE_ERROR); | |
2432 | } | |
2433 | ||
2434 | *req_uri++ = '\0'; | |
2435 | ||
2436 | while (*req_uri && isspace(*req_uri & 255)) | |
2437 | req_uri ++; | |
2438 | ||
2439 | req_version = req_uri; | |
2440 | ||
2441 | while (*req_version && !isspace(*req_version & 255)) | |
2442 | req_version ++; | |
2443 | ||
2444 | if (!*req_version) | |
2445 | { | |
2446 | DEBUG_puts("1httpReadRequest: No request protocol version."); | |
2447 | return (HTTP_STATE_ERROR); | |
2448 | } | |
2449 | ||
2450 | *req_version++ = '\0'; | |
2451 | ||
2452 | while (*req_version && isspace(*req_version & 255)) | |
2453 | req_version ++; | |
2454 | ||
2455 | /* | |
2456 | * Validate... | |
2457 | */ | |
2458 | ||
2459 | if (!strcmp(req_method, "OPTIONS")) | |
2460 | http->state = HTTP_STATE_OPTIONS; | |
2461 | else if (!strcmp(req_method, "GET")) | |
2462 | http->state = HTTP_STATE_GET; | |
2463 | else if (!strcmp(req_method, "HEAD")) | |
2464 | http->state = HTTP_STATE_HEAD; | |
2465 | else if (!strcmp(req_method, "POST")) | |
2466 | http->state = HTTP_STATE_POST; | |
2467 | else if (!strcmp(req_method, "PUT")) | |
2468 | http->state = HTTP_STATE_PUT; | |
2469 | else if (!strcmp(req_method, "DELETE")) | |
2470 | http->state = HTTP_STATE_DELETE; | |
2471 | else if (!strcmp(req_method, "TRACE")) | |
2472 | http->state = HTTP_STATE_TRACE; | |
2473 | else if (!strcmp(req_method, "CONNECT")) | |
2474 | http->state = HTTP_STATE_CONNECT; | |
2475 | else | |
2476 | { | |
2477 | DEBUG_printf(("1httpReadRequest: Unknown method \"%s\".", req_method)); | |
2478 | return (HTTP_STATE_UNKNOWN_METHOD); | |
2479 | } | |
2480 | ||
2481 | DEBUG_printf(("1httpReadRequest: Set state to %s.", | |
cb7f98ee | 2482 | http_state_string(http->state))); |
a469f8a5 MS |
2483 | |
2484 | if (!strcmp(req_version, "HTTP/1.0")) | |
2485 | { | |
2486 | http->version = HTTP_VERSION_1_0; | |
2487 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2488 | } | |
2489 | else if (!strcmp(req_version, "HTTP/1.1")) | |
2490 | { | |
2491 | http->version = HTTP_VERSION_1_1; | |
2492 | http->keep_alive = HTTP_KEEPALIVE_ON; | |
2493 | } | |
2494 | else | |
2495 | { | |
2496 | DEBUG_printf(("1httpReadRequest: Unknown version \"%s\".", req_version)); | |
2497 | return (HTTP_STATE_UNKNOWN_VERSION); | |
2498 | } | |
2499 | ||
2500 | DEBUG_printf(("1httpReadRequest: URI is \"%s\".", req_uri)); | |
2501 | strlcpy(uri, req_uri, urilen); | |
2502 | ||
2503 | return (http->state); | |
2504 | } | |
2505 | ||
2506 | ||
2507 | /* | |
2508 | * 'httpReconnect()' - Reconnect to a HTTP server. | |
2509 | * | |
2510 | * This function is deprecated. Please use the @link httpReconnect2@ function | |
2511 | * instead. | |
2512 | * | |
2513 | * @deprecated@ | |
2514 | */ | |
2515 | ||
2516 | int /* O - 0 on success, non-zero on failure */ | |
2517 | httpReconnect(http_t *http) /* I - Connection to server */ | |
2518 | { | |
2519 | DEBUG_printf(("httpReconnect(http=%p)", http)); | |
2520 | ||
2521 | return (httpReconnect2(http, 30000, NULL)); | |
2522 | } | |
2523 | ||
2524 | ||
2525 | /* | |
2526 | * 'httpReconnect2()' - Reconnect to a HTTP server with timeout and optional | |
2527 | * cancel. | |
2528 | */ | |
2529 | ||
2530 | int /* O - 0 on success, non-zero on failure */ | |
2531 | httpReconnect2(http_t *http, /* I - Connection to server */ | |
2532 | int msec, /* I - Timeout in milliseconds */ | |
2533 | int *cancel) /* I - Pointer to "cancel" variable */ | |
2534 | { | |
2535 | http_addrlist_t *addr; /* Connected address */ | |
2536 | #ifdef DEBUG | |
2537 | http_addrlist_t *current; /* Current address */ | |
2538 | char temp[256]; /* Temporary address string */ | |
2539 | #endif /* DEBUG */ | |
2540 | ||
2541 | ||
2542 | DEBUG_printf(("httpReconnect2(http=%p, msec=%d, cancel=%p)", http, msec, | |
2543 | cancel)); | |
2544 | ||
2545 | if (!http) | |
2546 | { | |
cb7f98ee | 2547 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
a469f8a5 MS |
2548 | return (-1); |
2549 | } | |
2550 | ||
2551 | #ifdef HAVE_SSL | |
2552 | if (http->tls) | |
2553 | { | |
2554 | DEBUG_puts("2httpReconnect2: Shutting down SSL/TLS..."); | |
2555 | http_shutdown_ssl(http); | |
2556 | } | |
2557 | #endif /* HAVE_SSL */ | |
2558 | ||
2559 | /* | |
2560 | * Close any previously open socket... | |
2561 | */ | |
2562 | ||
2563 | if (http->fd >= 0) | |
2564 | { | |
2565 | DEBUG_printf(("2httpReconnect2: Closing socket %d...", http->fd)); | |
2566 | ||
2567 | #ifdef WIN32 | |
2568 | closesocket(http->fd); | |
2569 | #else | |
2570 | close(http->fd); | |
2571 | #endif /* WIN32 */ | |
2572 | ||
2573 | http->fd = -1; | |
2574 | } | |
2575 | ||
2576 | /* | |
2577 | * Reset all state (except fields, which may be reused)... | |
2578 | */ | |
2579 | ||
2580 | http->state = HTTP_STATE_WAITING; | |
a469f8a5 MS |
2581 | http->version = HTTP_VERSION_1_1; |
2582 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
a29fd7dd | 2583 | memset(&http->_hostaddr, 0, sizeof(http->_hostaddr)); |
a469f8a5 | 2584 | http->data_encoding = HTTP_ENCODING_FIELDS; |
a29fd7dd MS |
2585 | http->_data_remaining = 0; |
2586 | http->used = 0; | |
a29fd7dd MS |
2587 | http->data_remaining = 0; |
2588 | http->hostaddr = NULL; | |
2589 | http->wused = 0; | |
2590 | ||
ef416fc2 | 2591 | /* |
2592 | * Connect to the server... | |
2593 | */ | |
2594 | ||
1ff0402e MS |
2595 | #ifdef DEBUG |
2596 | for (current = http->addrlist; current; current = current->next) | |
12f89d24 | 2597 | DEBUG_printf(("2httpReconnect2: Address %s:%d", |
1ff0402e | 2598 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
a469f8a5 | 2599 | httpAddrPort(&(current->addr)))); |
1ff0402e MS |
2600 | #endif /* DEBUG */ |
2601 | ||
dcb445bc MS |
2602 | if ((addr = httpAddrConnect2(http->addrlist, &(http->fd), msec, |
2603 | cancel)) == NULL) | |
ef416fc2 | 2604 | { |
2605 | /* | |
2606 | * Unable to connect... | |
2607 | */ | |
2608 | ||
2609 | #ifdef WIN32 | |
2610 | http->error = WSAGetLastError(); | |
2611 | #else | |
2612 | http->error = errno; | |
2613 | #endif /* WIN32 */ | |
cb7f98ee | 2614 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 2615 | |
12f89d24 | 2616 | DEBUG_printf(("1httpReconnect2: httpAddrConnect failed: %s", |
1ff0402e MS |
2617 | strerror(http->error))); |
2618 | ||
ef416fc2 | 2619 | return (-1); |
2620 | } | |
2621 | ||
12f89d24 | 2622 | DEBUG_printf(("2httpReconnect2: New socket=%d", http->fd)); |
1ff0402e | 2623 | |
85dda01c MS |
2624 | if (http->timeout_value > 0) |
2625 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2626 | |
ef416fc2 | 2627 | http->hostaddr = &(addr->addr); |
2628 | http->error = 0; | |
ef416fc2 | 2629 | |
2630 | #ifdef HAVE_SSL | |
cb7f98ee | 2631 | if (http->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 2632 | { |
2633 | /* | |
2634 | * Always do encryption via SSL. | |
2635 | */ | |
2636 | ||
2637 | if (http_setup_ssl(http) != 0) | |
2638 | { | |
f7deaa1a | 2639 | # ifdef WIN32 |
ef416fc2 | 2640 | closesocket(http->fd); |
f7deaa1a | 2641 | # else |
ef416fc2 | 2642 | close(http->fd); |
f7deaa1a | 2643 | # endif /* WIN32 */ |
ef416fc2 | 2644 | |
2645 | return (-1); | |
2646 | } | |
2647 | } | |
cb7f98ee | 2648 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls_upgrade) |
ef416fc2 | 2649 | return (http_upgrade(http)); |
2650 | #endif /* HAVE_SSL */ | |
2651 | ||
12f89d24 | 2652 | DEBUG_printf(("1httpReconnect2: Connected to %s:%d...", |
1ff0402e | 2653 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
a469f8a5 | 2654 | httpAddrPort(http->hostaddr))); |
1ff0402e | 2655 | |
ef416fc2 | 2656 | return (0); |
2657 | } | |
2658 | ||
2659 | ||
355e94dc MS |
2660 | /* |
2661 | * 'httpSetAuthString()' - Set the current authorization string. | |
2662 | * | |
2663 | * This function just stores a copy of the current authorization string in | |
2664 | * the HTTP connection object. You must still call httpSetField() to set | |
2665 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2666 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2667 | * | |
f3c17241 | 2668 | * @since CUPS 1.3/OS X 10.5@ |
355e94dc MS |
2669 | */ |
2670 | ||
2671 | void | |
568fa3fa | 2672 | httpSetAuthString(http_t *http, /* I - Connection to server */ |
355e94dc MS |
2673 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2674 | const char *data) /* I - Auth data (NULL for none) */ | |
2675 | { | |
2676 | /* | |
2677 | * Range check input... | |
2678 | */ | |
2679 | ||
2680 | if (!http) | |
2681 | return; | |
2682 | ||
2683 | if (http->authstring && http->authstring != http->_authstring) | |
2684 | free(http->authstring); | |
2685 | ||
2686 | http->authstring = http->_authstring; | |
2687 | ||
2688 | if (scheme) | |
2689 | { | |
2690 | /* | |
2691 | * Set the current authorization string... | |
2692 | */ | |
2693 | ||
2694 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 2695 | char *temp; |
355e94dc MS |
2696 | |
2697 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
2698 | { |
2699 | if ((temp = malloc(len)) == NULL) | |
2700 | len = sizeof(http->_authstring); | |
2701 | else | |
2702 | http->authstring = temp; | |
2703 | } | |
355e94dc MS |
2704 | |
2705 | if (data) | |
2706 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2707 | else | |
2708 | strlcpy(http->authstring, scheme, len); | |
2709 | } | |
2710 | else | |
2711 | { | |
2712 | /* | |
2713 | * Clear the current authorization string... | |
2714 | */ | |
2715 | ||
2716 | http->_authstring[0] = '\0'; | |
2717 | } | |
2718 | } | |
2719 | ||
2720 | ||
7cf5915e MS |
2721 | /* |
2722 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2723 | * connection. | |
2724 | * | |
f3c17241 | 2725 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
2726 | */ |
2727 | ||
2728 | int /* O - Status of call (0 = success) */ | |
2729 | httpSetCredentials(http_t *http, /* I - Connection to server */ | |
2730 | cups_array_t *credentials) /* I - Array of credentials */ | |
2731 | { | |
2732 | if (!http || cupsArrayCount(credentials) < 1) | |
2733 | return (-1); | |
2734 | ||
2735 | _httpFreeCredentials(http->tls_credentials); | |
2736 | ||
85dda01c | 2737 | http->tls_credentials = _httpCreateCredentials(credentials); |
7cf5915e MS |
2738 | |
2739 | return (http->tls_credentials ? 0 : -1); | |
2740 | } | |
2741 | ||
2742 | ||
ef416fc2 | 2743 | /* |
6d2f911b | 2744 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2745 | * |
f3c17241 | 2746 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 2747 | */ |
2748 | ||
2749 | void | |
2750 | httpSetCookie(http_t *http, /* I - Connection */ | |
2751 | const char *cookie) /* I - Cookie string */ | |
2752 | { | |
2753 | if (!http) | |
2754 | return; | |
2755 | ||
2756 | if (http->cookie) | |
2757 | free(http->cookie); | |
2758 | ||
2759 | if (cookie) | |
2760 | http->cookie = strdup(cookie); | |
2761 | else | |
2762 | http->cookie = NULL; | |
2763 | } | |
2764 | ||
2765 | ||
c1420c87 MS |
2766 | /* |
2767 | * 'httpSetDefaultField()' - Set the default value of an HTTP header. | |
2768 | * | |
6961465f MS |
2769 | * Currently only @code HTTP_FIELD_ACCEPT_ENCODING@, @code HTTP_FIELD_SERVER@, |
2770 | * and @code HTTP_FIELD_USER_AGENT@ can be set. | |
c1420c87 | 2771 | * |
9c0e8e5d | 2772 | * @since CUPS 1.7/OS X 10.9@ |
c1420c87 MS |
2773 | */ |
2774 | ||
2775 | void | |
2776 | httpSetDefaultField(http_t *http, /* I - Connection to server */ | |
2777 | http_field_t field, /* I - Field index */ | |
2778 | const char *value)/* I - Value */ | |
2779 | { | |
2780 | DEBUG_printf(("httpSetDefaultField(http=%p, field=%d(%s), value=\"%s\")", | |
2781 | http, field, http_fields[field], value)); | |
2782 | ||
2783 | if (!http) | |
2784 | return; | |
2785 | ||
2786 | switch (field) | |
2787 | { | |
2788 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2789 | if (http->default_accept_encoding) | |
2790 | _cupsStrFree(http->default_accept_encoding); | |
2791 | ||
2792 | http->default_accept_encoding = value ? _cupsStrAlloc(value) : NULL; | |
2793 | break; | |
2794 | ||
2795 | case HTTP_FIELD_SERVER : | |
2796 | if (http->default_server) | |
2797 | _cupsStrFree(http->default_server); | |
2798 | ||
2799 | http->default_server = value ? _cupsStrAlloc(value) : NULL; | |
2800 | break; | |
2801 | ||
2802 | case HTTP_FIELD_USER_AGENT : | |
2803 | if (http->default_user_agent) | |
2804 | _cupsStrFree(http->default_user_agent); | |
2805 | ||
2806 | http->default_user_agent = value ? _cupsStrAlloc(value) : NULL; | |
2807 | break; | |
2808 | ||
2809 | default : | |
2810 | DEBUG_puts("1httpSetDefaultField: Ignored."); | |
2811 | break; | |
2812 | } | |
2813 | } | |
2814 | ||
2815 | ||
b423cd4c | 2816 | /* |
2817 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2818 | * | |
a469f8a5 MS |
2819 | * Currently only @code HTTP_STATUS_CONTINUE@ is supported for the "expect" |
2820 | * argument. | |
b423cd4c | 2821 | * |
f3c17241 | 2822 | * @since CUPS 1.2/OS X 10.5@ |
b423cd4c | 2823 | */ |
2824 | ||
2825 | void | |
568fa3fa | 2826 | httpSetExpect(http_t *http, /* I - Connection to server */ |
a469f8a5 | 2827 | http_status_t expect) /* I - HTTP status to expect |
cb7f98ee | 2828 | (@code HTTP_STATUS_CONTINUE@) */ |
b423cd4c | 2829 | { |
cb7f98ee MS |
2830 | DEBUG_printf(("httpSetExpect(http=%p, expect=%d)", http, expect)); |
2831 | ||
b423cd4c | 2832 | if (http) |
2833 | http->expect = expect; | |
2834 | } | |
2835 | ||
2836 | ||
ef416fc2 | 2837 | /* |
2838 | * 'httpSetField()' - Set the value of an HTTP header. | |
2839 | */ | |
2840 | ||
2841 | void | |
568fa3fa | 2842 | httpSetField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2843 | http_field_t field, /* I - Field index */ |
2844 | const char *value) /* I - Value */ | |
2845 | { | |
a469f8a5 MS |
2846 | DEBUG_printf(("httpSetField(http=%p, field=%d(%s), value=\"%s\")", http, |
2847 | field, http_fields[field], value)); | |
2848 | ||
ef416fc2 | 2849 | if (http == NULL || |
2850 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
a469f8a5 | 2851 | field >= HTTP_FIELD_MAX || |
ef416fc2 | 2852 | value == NULL) |
2853 | return; | |
2854 | ||
a469f8a5 MS |
2855 | switch (field) |
2856 | { | |
2857 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2858 | if (http->accept_encoding) | |
2859 | _cupsStrFree(http->accept_encoding); | |
2860 | ||
2861 | http->accept_encoding = _cupsStrAlloc(value); | |
2862 | break; | |
2863 | ||
2864 | case HTTP_FIELD_ALLOW : | |
2865 | if (http->allow) | |
2866 | _cupsStrFree(http->allow); | |
2867 | ||
2868 | http->allow = _cupsStrAlloc(value); | |
2869 | break; | |
2870 | ||
2871 | case HTTP_FIELD_SERVER : | |
2872 | if (http->server) | |
2873 | _cupsStrFree(http->server); | |
2874 | ||
2875 | http->server = _cupsStrAlloc(value); | |
2876 | break; | |
2877 | ||
2878 | default : | |
2879 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
2880 | break; | |
2881 | } | |
f7deaa1a | 2882 | |
f7deaa1a | 2883 | if (field == HTTP_FIELD_AUTHORIZATION) |
2884 | { | |
e07d4801 MS |
2885 | /* |
2886 | * Special case for Authorization: as its contents can be | |
2887 | * longer than HTTP_MAX_VALUE | |
2888 | */ | |
2889 | ||
f7deaa1a | 2890 | if (http->field_authorization) |
2891 | free(http->field_authorization); | |
2892 | ||
2893 | http->field_authorization = strdup(value); | |
2894 | } | |
e07d4801 MS |
2895 | else if (field == HTTP_FIELD_HOST) |
2896 | { | |
2897 | /* | |
f11a948a MS |
2898 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2899 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2900 | */ |
2901 | ||
178cb736 MS |
2902 | char *ptr = strchr(value, ':'); |
2903 | ||
2904 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2905 | { |
2906 | /* | |
2907 | * Bracket IPv6 numeric addresses... | |
2908 | * | |
2909 | * This is slightly inefficient (basically copying twice), but is an edge | |
2910 | * case and not worth optimizing... | |
2911 | */ | |
e07d4801 | 2912 | |
f11a948a MS |
2913 | snprintf(http->fields[HTTP_FIELD_HOST], |
2914 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2915 | } | |
2916 | else | |
e07d4801 | 2917 | { |
f11a948a MS |
2918 | /* |
2919 | * Check for a trailing dot on the hostname... | |
2920 | */ | |
2921 | ||
178cb736 | 2922 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2923 | |
2924 | if (*ptr) | |
2925 | { | |
2926 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2927 | |
f11a948a MS |
2928 | if (*ptr == '.') |
2929 | *ptr = '\0'; | |
2930 | } | |
e07d4801 MS |
2931 | } |
2932 | } | |
a469f8a5 MS |
2933 | #ifdef HAVE_LIBZ |
2934 | else if (field == HTTP_FIELD_CONTENT_ENCODING && | |
2935 | http->data_encoding != HTTP_ENCODING_FIELDS) | |
2936 | { | |
2937 | DEBUG_puts("1httpSetField: Calling http_content_coding_start."); | |
2938 | http_content_coding_start(http, value); | |
2939 | } | |
2940 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2941 | } |
2942 | ||
2943 | ||
2944 | /* | |
2945 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2946 | * | |
f3c17241 | 2947 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 2948 | */ |
2949 | ||
2950 | void | |
568fa3fa | 2951 | httpSetLength(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2952 | size_t length) /* I - Length (0 for chunked) */ |
2953 | { | |
a469f8a5 MS |
2954 | DEBUG_printf(("httpSetLength(http=%p, length=" CUPS_LLFMT ")", http, |
2955 | CUPS_LLCAST length)); | |
2956 | ||
ef416fc2 | 2957 | if (!http) |
2958 | return; | |
2959 | ||
2960 | if (!length) | |
2961 | { | |
5a9febac MS |
2962 | strlcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked", |
2963 | HTTP_MAX_VALUE); | |
ef416fc2 | 2964 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; |
2965 | } | |
2966 | else | |
2967 | { | |
2968 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2969 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2970 | CUPS_LLFMT, CUPS_LLCAST length); | |
2971 | } | |
2972 | } | |
2973 | ||
2974 | ||
10d09e33 | 2975 | /* |
f228370c | 2976 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2977 | * |
2978 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2979 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2980 | * | |
f3c17241 | 2981 | * @since CUPS 1.5/OS X 10.7@ |
10d09e33 MS |
2982 | */ |
2983 | ||
2984 | void | |
f228370c MS |
2985 | httpSetTimeout( |
2986 | http_t *http, /* I - Connection to server */ | |
2987 | double timeout, /* I - Number of seconds for timeout, | |
10d09e33 | 2988 | must be greater than 0 */ |
f228370c MS |
2989 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2990 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2991 | { |
2992 | if (!http || timeout <= 0.0) | |
2993 | return; | |
2994 | ||
85dda01c MS |
2995 | http->timeout_cb = cb; |
2996 | http->timeout_data = user_data; | |
2997 | http->timeout_value = timeout; | |
10d09e33 MS |
2998 | |
2999 | if (http->fd >= 0) | |
85dda01c | 3000 | http_set_timeout(http->fd, timeout); |
c8fef167 | 3001 | |
85dda01c | 3002 | http_set_wait(http); |
10d09e33 MS |
3003 | } |
3004 | ||
3005 | ||
ef416fc2 | 3006 | /* |
3007 | * 'httpTrace()' - Send an TRACE request to the server. | |
3008 | */ | |
3009 | ||
3010 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 3011 | httpTrace(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3012 | const char *uri) /* I - URI for trace */ |
3013 | { | |
cb7f98ee | 3014 | return (http_send(http, HTTP_STATE_TRACE, uri)); |
ef416fc2 | 3015 | } |
3016 | ||
3017 | ||
3018 | /* | |
e60ec91f MS |
3019 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
3020 | * | |
3021 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
3022 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 3023 | */ |
3024 | ||
e60ec91f MS |
3025 | int /* O - 1 to continue, 0 to stop */ |
3026 | _httpUpdate(http_t *http, /* I - Connection to server */ | |
3027 | http_status_t *status) /* O - Current HTTP status */ | |
ef416fc2 | 3028 | { |
3029 | char line[32768], /* Line from connection... */ | |
3030 | *value; /* Pointer to value on line */ | |
3031 | http_field_t field; /* Field index */ | |
e60ec91f | 3032 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 3033 | |
3034 | ||
e60ec91f | 3035 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
cb7f98ee | 3036 | http_state_string(http->state))); |
ef416fc2 | 3037 | |
3038 | /* | |
e60ec91f | 3039 | * Grab a single line from the connection... |
ef416fc2 | 3040 | */ |
3041 | ||
e60ec91f | 3042 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 3043 | { |
cb7f98ee | 3044 | *status = HTTP_STATUS_ERROR; |
e60ec91f | 3045 | return (0); |
ef416fc2 | 3046 | } |
3047 | ||
e60ec91f | 3048 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 3049 | |
e60ec91f | 3050 | if (line[0] == '\0') |
ef416fc2 | 3051 | { |
e60ec91f MS |
3052 | /* |
3053 | * Blank line means the start of the data section (if any). Return | |
3054 | * the result code, too... | |
3055 | * | |
a469f8a5 MS |
3056 | * If we get status 100 (HTTP_STATUS_CONTINUE), then we *don't* change |
3057 | * states. Instead, we just return HTTP_STATUS_CONTINUE to the caller and | |
3058 | * keep on tryin'... | |
e60ec91f | 3059 | */ |
ef416fc2 | 3060 | |
a469f8a5 | 3061 | if (http->status == HTTP_STATUS_CONTINUE) |
ef416fc2 | 3062 | { |
e60ec91f MS |
3063 | *status = http->status; |
3064 | return (0); | |
3065 | } | |
ef416fc2 | 3066 | |
cb7f98ee | 3067 | if (http->status < HTTP_STATUS_BAD_REQUEST) |
e60ec91f | 3068 | http->digest_tries = 0; |
ef416fc2 | 3069 | |
3070 | #ifdef HAVE_SSL | |
cb7f98ee | 3071 | if (http->status == HTTP_STATUS_SWITCHING_PROTOCOLS && !http->tls) |
e60ec91f MS |
3072 | { |
3073 | if (http_setup_ssl(http) != 0) | |
ef416fc2 | 3074 | { |
ef416fc2 | 3075 | # ifdef WIN32 |
e60ec91f | 3076 | closesocket(http->fd); |
ef416fc2 | 3077 | # else |
e60ec91f | 3078 | close(http->fd); |
ef416fc2 | 3079 | # endif /* WIN32 */ |
3080 | ||
cb7f98ee | 3081 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f | 3082 | return (0); |
ef416fc2 | 3083 | } |
e60ec91f | 3084 | |
a469f8a5 | 3085 | *status = HTTP_STATUS_CONTINUE; |
e60ec91f MS |
3086 | return (0); |
3087 | } | |
ef416fc2 | 3088 | #endif /* HAVE_SSL */ |
3089 | ||
a469f8a5 MS |
3090 | if (http_set_length(http) < 0) |
3091 | { | |
3092 | DEBUG_puts("1_httpUpdate: Bad Content-Length."); | |
3093 | http->error = EINVAL; | |
cb7f98ee | 3094 | http->status = *status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3095 | return (0); |
3096 | } | |
ef416fc2 | 3097 | |
e60ec91f MS |
3098 | switch (http->state) |
3099 | { | |
c41769ff MS |
3100 | case HTTP_STATE_GET : |
3101 | case HTTP_STATE_POST : | |
a469f8a5 | 3102 | case HTTP_STATE_POST_RECV : |
c41769ff | 3103 | case HTTP_STATE_PUT : |
e60ec91f | 3104 | http->state ++; |
a469f8a5 MS |
3105 | |
3106 | DEBUG_printf(("1_httpUpdate: Set state to %s.", | |
cb7f98ee | 3107 | http_state_string(http->state))); |
a469f8a5 | 3108 | |
c41769ff MS |
3109 | case HTTP_STATE_POST_SEND : |
3110 | case HTTP_STATE_HEAD : | |
e60ec91f | 3111 | break; |
ef416fc2 | 3112 | |
e60ec91f | 3113 | default : |
a469f8a5 MS |
3114 | http->state = HTTP_STATE_WAITING; |
3115 | ||
cb7f98ee | 3116 | DEBUG_puts("1_httpUpdate: Reset state to HTTP_STATE_WAITING."); |
e60ec91f | 3117 | break; |
ef416fc2 | 3118 | } |
e60ec91f | 3119 | |
a469f8a5 MS |
3120 | #ifdef HAVE_LIBZ |
3121 | DEBUG_puts("1_httpUpdate: Calling http_content_coding_start."); | |
3122 | http_content_coding_start(http, | |
3123 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
3124 | #endif /* HAVE_LIBZ */ | |
3125 | ||
e60ec91f MS |
3126 | *status = http->status; |
3127 | return (0); | |
3128 | } | |
3129 | else if (!strncmp(line, "HTTP/", 5)) | |
3130 | { | |
3131 | /* | |
3132 | * Got the beginning of a response... | |
3133 | */ | |
3134 | ||
3135 | int intstatus; /* Status value as an integer */ | |
3136 | ||
3137 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
3138 | { | |
cb7f98ee | 3139 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3140 | return (0); |
3141 | } | |
3142 | ||
a469f8a5 MS |
3143 | httpClearFields(http); |
3144 | ||
e60ec91f MS |
3145 | http->version = (http_version_t)(major * 100 + minor); |
3146 | *status = http->status = (http_status_t)intstatus; | |
3147 | } | |
3148 | else if ((value = strchr(line, ':')) != NULL) | |
3149 | { | |
3150 | /* | |
3151 | * Got a value... | |
3152 | */ | |
3153 | ||
3154 | *value++ = '\0'; | |
3155 | while (_cups_isspace(*value)) | |
3156 | value ++; | |
3157 | ||
a469f8a5 MS |
3158 | DEBUG_printf(("1_httpUpdate: Header %s: %s", line, value)); |
3159 | ||
e60ec91f MS |
3160 | /* |
3161 | * Be tolerants of servers that send unknown attribute fields... | |
3162 | */ | |
3163 | ||
88f9aafc | 3164 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 3165 | { |
3166 | /* | |
e60ec91f | 3167 | * "Expect: 100-continue" or similar... |
ef416fc2 | 3168 | */ |
3169 | ||
e60ec91f | 3170 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 3171 | } |
88f9aafc | 3172 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 3173 | { |
3174 | /* | |
e60ec91f | 3175 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 3176 | */ |
3177 | ||
e60ec91f MS |
3178 | httpSetCookie(http, value); |
3179 | } | |
3180 | else if ((field = http_field(line)) != HTTP_FIELD_UNKNOWN) | |
3181 | httpSetField(http, field, value); | |
3182 | #ifdef DEBUG | |
3183 | else | |
3184 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
3185 | #endif /* DEBUG */ | |
3186 | } | |
3187 | else | |
3188 | { | |
3189 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
a469f8a5 | 3190 | http->error = EINVAL; |
cb7f98ee | 3191 | http->status = *status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3192 | return (0); |
3193 | } | |
ef416fc2 | 3194 | |
e60ec91f MS |
3195 | return (1); |
3196 | } | |
ef416fc2 | 3197 | |
ef416fc2 | 3198 | |
e60ec91f MS |
3199 | /* |
3200 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
3201 | */ | |
ef416fc2 | 3202 | |
e60ec91f MS |
3203 | http_status_t /* O - HTTP status */ |
3204 | httpUpdate(http_t *http) /* I - Connection to server */ | |
3205 | { | |
3206 | http_status_t status; /* Request status */ | |
3207 | ||
3208 | ||
3209 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
cb7f98ee | 3210 | http_state_string(http->state))); |
e60ec91f MS |
3211 | |
3212 | /* | |
3213 | * Flush pending data, if any... | |
3214 | */ | |
3215 | ||
3216 | if (http->wused) | |
3217 | { | |
3218 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
3219 | ||
3220 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 3221 | return (HTTP_STATUS_ERROR); |
ef416fc2 | 3222 | } |
3223 | ||
e60ec91f MS |
3224 | /* |
3225 | * If we haven't issued any commands, then there is nothing to "update"... | |
3226 | */ | |
3227 | ||
a469f8a5 | 3228 | if (http->state == HTTP_STATE_WAITING) |
cb7f98ee | 3229 | return (HTTP_STATUS_CONTINUE); |
e60ec91f MS |
3230 | |
3231 | /* | |
3232 | * Grab all of the lines we can from the connection... | |
3233 | */ | |
3234 | ||
3235 | while (_httpUpdate(http, &status)); | |
3236 | ||
ef416fc2 | 3237 | /* |
3238 | * See if there was an error... | |
3239 | */ | |
3240 | ||
cb7f98ee | 3241 | if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE) |
e07d4801 MS |
3242 | { |
3243 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 3244 | return (http->status); |
e07d4801 | 3245 | } |
ef416fc2 | 3246 | |
3247 | if (http->error) | |
3248 | { | |
e07d4801 | 3249 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 3250 | strerror(http->error))); |
cb7f98ee MS |
3251 | http->status = HTTP_STATUS_ERROR; |
3252 | return (HTTP_STATUS_ERROR); | |
ef416fc2 | 3253 | } |
3254 | ||
3255 | /* | |
e60ec91f | 3256 | * Return the current status... |
ef416fc2 | 3257 | */ |
3258 | ||
e60ec91f | 3259 | return (status); |
ef416fc2 | 3260 | } |
3261 | ||
3262 | ||
38e73f87 MS |
3263 | /* |
3264 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
3265 | */ | |
3266 | ||
3267 | int /* O - 1 if data is available, 0 otherwise */ | |
3268 | _httpWait(http_t *http, /* I - Connection to server */ | |
3269 | int msec, /* I - Milliseconds to wait */ | |
3270 | int usessl) /* I - Use SSL context? */ | |
3271 | { | |
3272 | #ifdef HAVE_POLL | |
3273 | struct pollfd pfd; /* Polled file descriptor */ | |
3274 | #else | |
3275 | fd_set input_set; /* select() input set */ | |
3276 | struct timeval timeout; /* Timeout */ | |
3277 | #endif /* HAVE_POLL */ | |
3278 | int nfds; /* Result from select()/poll() */ | |
3279 | ||
3280 | ||
e07d4801 | 3281 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
3282 | |
3283 | if (http->fd < 0) | |
f8b3a85b MS |
3284 | { |
3285 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 3286 | return (0); |
f8b3a85b | 3287 | } |
38e73f87 MS |
3288 | |
3289 | /* | |
3290 | * Check the SSL/TLS buffers for data first... | |
3291 | */ | |
3292 | ||
3293 | #ifdef HAVE_SSL | |
3294 | if (http->tls && usessl) | |
3295 | { | |
3296 | # ifdef HAVE_LIBSSL | |
7cf5915e | 3297 | if (SSL_pending(http->tls)) |
f8b3a85b MS |
3298 | { |
3299 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 3300 | return (1); |
f8b3a85b MS |
3301 | } |
3302 | ||
38e73f87 | 3303 | # elif defined(HAVE_GNUTLS) |
7cf5915e | 3304 | if (gnutls_record_check_pending(http->tls)) |
f8b3a85b MS |
3305 | { |
3306 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 3307 | return (1); |
f8b3a85b MS |
3308 | } |
3309 | ||
38e73f87 MS |
3310 | # elif defined(HAVE_CDSASSL) |
3311 | size_t bytes; /* Bytes that are available */ | |
3312 | ||
7cf5915e | 3313 | if (!SSLGetBufferedReadSize(http->tls, &bytes) && |
38e73f87 | 3314 | bytes > 0) |
f8b3a85b MS |
3315 | { |
3316 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 3317 | return (1); |
f8b3a85b | 3318 | } |
38e73f87 MS |
3319 | # endif /* HAVE_LIBSSL */ |
3320 | } | |
3321 | #endif /* HAVE_SSL */ | |
3322 | ||
3323 | /* | |
3324 | * Then try doing a select() or poll() to poll the socket... | |
3325 | */ | |
3326 | ||
3327 | #ifdef HAVE_POLL | |
3328 | pfd.fd = http->fd; | |
3329 | pfd.events = POLLIN; | |
3330 | ||
5a9febac MS |
3331 | do |
3332 | { | |
3333 | nfds = poll(&pfd, 1, msec); | |
3334 | } | |
3335 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
3336 | |
3337 | #else | |
3338 | do | |
3339 | { | |
3340 | FD_ZERO(&input_set); | |
3341 | FD_SET(http->fd, &input_set); | |
3342 | ||
e07d4801 | 3343 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
3344 | |
3345 | if (msec >= 0) | |
3346 | { | |
3347 | timeout.tv_sec = msec / 1000; | |
3348 | timeout.tv_usec = (msec % 1000) * 1000; | |
3349 | ||
3350 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
3351 | } | |
3352 | else | |
3353 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
3354 | ||
e07d4801 | 3355 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
3356 | } |
3357 | # ifdef WIN32 | |
cc754834 MS |
3358 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
3359 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 3360 | # else |
e07d4801 | 3361 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
3362 | # endif /* WIN32 */ |
3363 | #endif /* HAVE_POLL */ | |
3364 | ||
f8b3a85b MS |
3365 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
3366 | errno)); | |
38e73f87 MS |
3367 | |
3368 | return (nfds > 0); | |
3369 | } | |
3370 | ||
3371 | ||
ef416fc2 | 3372 | /* |
3373 | * 'httpWait()' - Wait for data available on a connection. | |
3374 | * | |
f3c17241 | 3375 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 3376 | */ |
3377 | ||
3378 | int /* O - 1 if data is available, 0 otherwise */ | |
568fa3fa | 3379 | httpWait(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3380 | int msec) /* I - Milliseconds to wait */ |
3381 | { | |
3382 | /* | |
3383 | * First see if there is data in the buffer... | |
3384 | */ | |
3385 | ||
22c9029b MS |
3386 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
3387 | ||
ef416fc2 | 3388 | if (http == NULL) |
3389 | return (0); | |
3390 | ||
3391 | if (http->used) | |
22c9029b MS |
3392 | { |
3393 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 3394 | return (1); |
22c9029b | 3395 | } |
ef416fc2 | 3396 | |
0fa6c7fa MS |
3397 | #ifdef HAVE_LIBZ |
3398 | if (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in > 0) | |
3399 | { | |
3400 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
3401 | return (1); | |
3402 | } | |
3403 | #endif /* HAVE_LIBZ */ | |
3404 | ||
8ca02f3c | 3405 | /* |
3406 | * Flush pending data, if any... | |
3407 | */ | |
3408 | ||
3409 | if (http->wused) | |
3410 | { | |
22c9029b MS |
3411 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3412 | ||
8ca02f3c | 3413 | if (httpFlushWrite(http) < 0) |
3414 | return (0); | |
3415 | } | |
3416 | ||
ef416fc2 | 3417 | /* |
3418 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3419 | */ | |
3420 | ||
38e73f87 | 3421 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3422 | } |
3423 | ||
3424 | ||
3425 | /* | |
3426 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3427 | * |
3428 | * This function is deprecated. Use the httpWrite2() function which can | |
3429 | * write more than 2GB of data. | |
3430 | * | |
3431 | * @deprecated@ | |
ef416fc2 | 3432 | */ |
ef55b745 | 3433 | |
ef416fc2 | 3434 | int /* O - Number of bytes written */ |
568fa3fa | 3435 | httpWrite(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3436 | const char *buffer, /* I - Buffer for data */ |
3437 | int length) /* I - Number of bytes to write */ | |
3438 | { | |
a4d04587 | 3439 | return ((int)httpWrite2(http, buffer, length)); |
3440 | } | |
3441 | ||
3442 | ||
3443 | /* | |
3444 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3445 | * |
f3c17241 | 3446 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 3447 | */ |
ef55b745 | 3448 | |
a4d04587 | 3449 | ssize_t /* O - Number of bytes written */ |
568fa3fa | 3450 | httpWrite2(http_t *http, /* I - Connection to server */ |
a4d04587 | 3451 | const char *buffer, /* I - Buffer for data */ |
3452 | size_t length) /* I - Number of bytes to write */ | |
3453 | { | |
3454 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3455 | |
3456 | ||
e07d4801 | 3457 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3458 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3459 | |
3460 | /* | |
3461 | * Range check input... | |
3462 | */ | |
3463 | ||
a469f8a5 MS |
3464 | if (!http || !buffer) |
3465 | { | |
3466 | DEBUG_puts("1httpWrite2: Returning -1 due to bad input."); | |
ef416fc2 | 3467 | return (-1); |
a469f8a5 | 3468 | } |
ef416fc2 | 3469 | |
3470 | /* | |
3471 | * Mark activity on the connection... | |
3472 | */ | |
3473 | ||
3474 | http->activity = time(NULL); | |
3475 | ||
3476 | /* | |
3477 | * Buffer small writes for better performance... | |
3478 | */ | |
3479 | ||
a469f8a5 MS |
3480 | #ifdef HAVE_LIBZ |
3481 | if (http->coding) | |
3482 | { | |
3483 | DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding)); | |
3484 | ||
3485 | if (length == 0) | |
3486 | { | |
3487 | http_content_coding_finish(http); | |
3488 | bytes = 0; | |
3489 | } | |
3490 | else | |
3491 | { | |
3492 | http->stream.next_in = (Bytef *)buffer; | |
3493 | http->stream.avail_in = length; | |
3494 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
3495 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
3496 | ||
3497 | while (deflate(&(http->stream), Z_NO_FLUSH) == Z_OK) | |
3498 | { | |
3499 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3500 | ||
3501 | if (http->stream.avail_out == 0) | |
3502 | { | |
3503 | if (httpFlushWrite(http) < 0) | |
3504 | { | |
3505 | DEBUG_puts("1httpWrite2: Unable to flush, returning -1."); | |
3506 | return (-1); | |
3507 | } | |
3508 | ||
3509 | http->stream.next_out = (Bytef *)http->wbuffer; | |
3510 | http->stream.avail_out = sizeof(http->wbuffer); | |
3511 | } | |
3512 | } | |
3513 | ||
3514 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3515 | bytes = length; | |
3516 | } | |
3517 | } | |
3518 | else | |
3519 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 3520 | if (length > 0) |
3521 | { | |
3522 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
3523 | { | |
e07d4801 MS |
3524 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3525 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3526 | |
3527 | httpFlushWrite(http); | |
3528 | } | |
3529 | ||
38e73f87 MS |
3530 | if ((length + http->wused) <= sizeof(http->wbuffer) && |
3531 | length < sizeof(http->wbuffer)) | |
ef416fc2 | 3532 | { |
3533 | /* | |
3534 | * Write to buffer... | |
3535 | */ | |
3536 | ||
e07d4801 | 3537 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3538 | CUPS_LLCAST length)); |
ef416fc2 | 3539 | |
3540 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3541 | http->wused += (int)length; |
3542 | bytes = (ssize_t)length; | |
ef416fc2 | 3543 | } |
3544 | else | |
3545 | { | |
3546 | /* | |
3547 | * Otherwise write the data directly... | |
3548 | */ | |
3549 | ||
e07d4801 | 3550 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3551 | CUPS_LLCAST length)); |
ef416fc2 | 3552 | |
a469f8a5 | 3553 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
b86bc4cf | 3554 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 3555 | else |
b86bc4cf | 3556 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 3557 | |
e07d4801 | 3558 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3559 | CUPS_LLCAST bytes)); |
ef416fc2 | 3560 | } |
3561 | ||
a469f8a5 | 3562 | if (http->data_encoding == HTTP_ENCODING_LENGTH) |
ef416fc2 | 3563 | http->data_remaining -= bytes; |
3564 | } | |
3565 | else | |
3566 | bytes = 0; | |
3567 | ||
3568 | /* | |
3569 | * Handle end-of-request processing... | |
3570 | */ | |
3571 | ||
a469f8a5 MS |
3572 | if ((http->data_encoding == HTTP_ENCODING_CHUNKED && length == 0) || |
3573 | (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0)) | |
ef416fc2 | 3574 | { |
3575 | /* | |
3576 | * Finished with the transfer; unless we are sending POST or PUT | |
3577 | * data, go idle... | |
3578 | */ | |
3579 | ||
db8b865d MS |
3580 | #ifdef HAVE_LIBZ |
3581 | if (http->coding) | |
3582 | http_content_coding_finish(http); | |
3583 | #endif /* HAVE_LIBZ */ | |
3584 | ||
ef416fc2 | 3585 | if (http->wused) |
a469f8a5 MS |
3586 | { |
3587 | if (httpFlushWrite(http) < 0) | |
3588 | return (-1); | |
3589 | } | |
ef416fc2 | 3590 | |
a469f8a5 | 3591 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 3592 | { |
3593 | /* | |
3594 | * Send a 0-length chunk at the end of the request... | |
3595 | */ | |
3596 | ||
3597 | http_write(http, "0\r\n\r\n", 5); | |
3598 | ||
3599 | /* | |
3600 | * Reset the data state... | |
3601 | */ | |
3602 | ||
a469f8a5 | 3603 | http->data_encoding = HTTP_ENCODING_FIELDS; |
ef416fc2 | 3604 | http->data_remaining = 0; |
3605 | } | |
a469f8a5 MS |
3606 | |
3607 | if (http->state == HTTP_STATE_POST_RECV) | |
3608 | http->state ++; | |
ad29aeab MS |
3609 | else if (http->state == HTTP_STATE_POST_SEND) |
3610 | http->state = HTTP_STATE_WAITING; | |
db8b865d | 3611 | else |
cb7f98ee | 3612 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 3613 | |
db8b865d | 3614 | DEBUG_printf(("2httpWrite2: Changed state to %s.", |
cb7f98ee | 3615 | http_state_string(http->state))); |
ef416fc2 | 3616 | } |
3617 | ||
a469f8a5 MS |
3618 | DEBUG_printf(("1httpWrite2: Returning " CUPS_LLFMT ".", CUPS_LLCAST bytes)); |
3619 | ||
ef416fc2 | 3620 | return (bytes); |
3621 | } | |
3622 | ||
3623 | ||
3624 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
3625 | /* | |
411affcf | 3626 | * '_httpWriteCDSA()' - Write function for the CDSA library. |
ef416fc2 | 3627 | */ |
3628 | ||
3629 | OSStatus /* O - -1 on error, 0 on success */ | |
3630 | _httpWriteCDSA( | |
3631 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
3632 | const void *data, /* I - Data buffer */ | |
3633 | size_t *dataLength) /* IO - Number of bytes */ | |
3634 | { | |
411affcf | 3635 | OSStatus result; /* Return value */ |
3636 | ssize_t bytes; /* Number of bytes read */ | |
3637 | http_t *http; /* HTTP connection */ | |
e53920b9 | 3638 | |
3639 | ||
411affcf | 3640 | http = (http_t *)connection; |
ef416fc2 | 3641 | |
b423cd4c | 3642 | do |
411affcf | 3643 | { |
3644 | bytes = write(http->fd, data, *dataLength); | |
3645 | } | |
e07d4801 | 3646 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 3647 | |
b423cd4c | 3648 | if (bytes == *dataLength) |
411affcf | 3649 | { |
b423cd4c | 3650 | result = 0; |
411affcf | 3651 | } |
b423cd4c | 3652 | else if (bytes >= 0) |
3653 | { | |
3654 | *dataLength = bytes; | |
3655 | result = errSSLWouldBlock; | |
3656 | } | |
3657 | else | |
3658 | { | |
3659 | *dataLength = 0; | |
ef55b745 | 3660 | |
fa73b229 | 3661 | if (errno == EAGAIN) |
b423cd4c | 3662 | result = errSSLWouldBlock; |
b423cd4c | 3663 | else |
ed486911 | 3664 | result = errSSLClosedAbort; |
ef416fc2 | 3665 | } |
b423cd4c | 3666 | |
411affcf | 3667 | return (result); |
ef416fc2 | 3668 | } |
3669 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
3670 | ||
3671 | ||
411affcf | 3672 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
3673 | /* | |
3674 | * '_httpWriteGNUTLS()' - Write function for the GNU TLS library. | |
3675 | */ | |
3676 | ||
3677 | ssize_t /* O - Number of bytes written or -1 on error */ | |
3678 | _httpWriteGNUTLS( | |
111ff13a MS |
3679 | gnutls_transport_ptr_t ptr, /* I - Connection to server */ |
3680 | const void *data, /* I - Data buffer */ | |
3681 | size_t length) /* I - Number of bytes to write */ | |
411affcf | 3682 | { |
a4845881 MS |
3683 | ssize_t bytes; /* Bytes written */ |
3684 | ||
3685 | ||
3686 | DEBUG_printf(("6_httpWriteGNUTLS(ptr=%p, data=%p, length=%d)", ptr, data, | |
3687 | (int)length)); | |
a2326b5b | 3688 | #ifdef DEBUG |
a4845881 | 3689 | http_debug_hex("_httpWriteGNUTLS", data, (int)length); |
a2326b5b | 3690 | #endif /* DEBUG */ |
a4845881 MS |
3691 | |
3692 | bytes = send(((http_t *)ptr)->fd, data, length, 0); | |
3693 | DEBUG_printf(("_httpWriteGNUTLS: bytes=%d", (int)bytes)); | |
a2326b5b | 3694 | |
a4845881 | 3695 | return (bytes); |
411affcf | 3696 | } |
3697 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
3698 | ||
3699 | ||
a469f8a5 MS |
3700 | /* |
3701 | * 'httpWriteResponse()' - Write a HTTP response to a client connection. | |
3702 | * | |
9c0e8e5d | 3703 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
3704 | */ |
3705 | ||
3706 | int /* O - 0 on success, -1 on error */ | |
3707 | httpWriteResponse(http_t *http, /* I - HTTP connection */ | |
3708 | http_status_t status) /* I - Status code */ | |
3709 | { | |
3710 | http_encoding_t old_encoding; /* Old data_encoding value */ | |
3711 | off_t old_remaining; /* Old data_remaining value */ | |
3712 | ||
3713 | ||
3714 | /* | |
3715 | * Range check input... | |
3716 | */ | |
3717 | ||
3718 | DEBUG_printf(("httpWriteResponse(http=%p, status=%d)", http, status)); | |
3719 | ||
3720 | if (!http || status < HTTP_STATUS_CONTINUE) | |
3721 | { | |
3722 | DEBUG_puts("1httpWriteResponse: Bad input."); | |
3723 | return (-1); | |
3724 | } | |
3725 | ||
3726 | /* | |
3727 | * Set the various standard fields if they aren't already... | |
3728 | */ | |
3729 | ||
3730 | if (!http->fields[HTTP_FIELD_DATE][0]) | |
3731 | httpSetField(http, HTTP_FIELD_DATE, httpGetDateString(time(NULL))); | |
3732 | ||
cb7f98ee | 3733 | if (status >= HTTP_STATUS_BAD_REQUEST && http->keep_alive) |
a469f8a5 MS |
3734 | { |
3735 | http->keep_alive = 0; | |
3736 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, ""); | |
3737 | } | |
3738 | ||
3739 | if (http->version == HTTP_VERSION_1_1) | |
3740 | { | |
3741 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3742 | { | |
3743 | if (http->keep_alive) | |
3744 | httpSetField(http, HTTP_FIELD_CONNECTION, "Keep-Alive"); | |
3745 | else | |
3746 | httpSetField(http, HTTP_FIELD_CONNECTION, "close"); | |
3747 | } | |
3748 | ||
3749 | if (http->keep_alive && !http->fields[HTTP_FIELD_KEEP_ALIVE][0]) | |
3750 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, "timeout=10"); | |
3751 | } | |
3752 | ||
3753 | #ifdef HAVE_SSL | |
3754 | if (status == HTTP_STATUS_UPGRADE_REQUIRED) | |
3755 | { | |
3756 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3757 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3758 | ||
3759 | if (!http->fields[HTTP_FIELD_UPGRADE][0]) | |
3760 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); | |
3761 | } | |
3762 | #endif /* HAVE_SSL */ | |
3763 | ||
3764 | if (!http->server) | |
c1420c87 MS |
3765 | httpSetField(http, HTTP_FIELD_SERVER, |
3766 | http->default_server ? http->default_server : CUPS_MINIMAL); | |
a469f8a5 | 3767 | |
a469f8a5 MS |
3768 | /* |
3769 | * Set the Accept-Encoding field if it isn't already... | |
3770 | */ | |
3771 | ||
3772 | if (!http->accept_encoding) | |
c1420c87 MS |
3773 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, |
3774 | http->default_accept_encoding ? http->default_accept_encoding : | |
3775 | #ifdef HAVE_LIBZ | |
3776 | "gzip, deflate, identity"); | |
3777 | #else | |
3778 | "identity"); | |
a469f8a5 MS |
3779 | #endif /* HAVE_LIBZ */ |
3780 | ||
3781 | /* | |
3782 | * Send the response header... | |
3783 | */ | |
3784 | ||
3785 | old_encoding = http->data_encoding; | |
3786 | old_remaining = http->data_remaining; | |
3787 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
3788 | ||
3789 | if (httpPrintf(http, "HTTP/%d.%d %d %s\r\n", http->version / 100, | |
3790 | http->version % 100, (int)status, httpStatus(status)) < 0) | |
3791 | { | |
3792 | http->status = HTTP_STATUS_ERROR; | |
3793 | return (-1); | |
3794 | } | |
3795 | ||
3796 | if (status != HTTP_STATUS_CONTINUE) | |
3797 | { | |
3798 | /* | |
3799 | * 100 Continue doesn't have the rest of the response headers... | |
3800 | */ | |
3801 | ||
3802 | int i; /* Looping var */ | |
3803 | const char *value; /* Field value */ | |
3804 | ||
3805 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3806 | { | |
3807 | if ((value = httpGetField(http, i)) != NULL && *value) | |
3808 | { | |
3809 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) | |
3810 | { | |
3811 | http->status = HTTP_STATUS_ERROR; | |
3812 | return (-1); | |
3813 | } | |
3814 | } | |
3815 | } | |
3816 | ||
3817 | if (http->cookie) | |
3818 | { | |
3819 | if (httpPrintf(http, "Set-Cookie: %s path=/%s\r\n", http->cookie, | |
3820 | http->tls ? " secure" : "") < 1) | |
3821 | { | |
cb7f98ee | 3822 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3823 | return (-1); |
3824 | } | |
3825 | } | |
3826 | } | |
3827 | ||
3828 | if (httpWrite2(http, "\r\n", 2) < 2) | |
3829 | { | |
cb7f98ee | 3830 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3831 | return (-1); |
3832 | } | |
3833 | ||
3834 | if (httpFlushWrite(http) < 0) | |
3835 | { | |
cb7f98ee | 3836 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3837 | return (-1); |
3838 | } | |
3839 | ||
3840 | if (status == HTTP_STATUS_CONTINUE) | |
3841 | { | |
3842 | /* | |
3843 | * Restore the old data_encoding and data_length values... | |
3844 | */ | |
3845 | ||
3846 | http->data_encoding = old_encoding; | |
3847 | http->data_remaining = old_remaining; | |
3848 | ||
3849 | if (old_remaining <= INT_MAX) | |
3850 | http->_data_remaining = (int)old_remaining; | |
3851 | else | |
3852 | http->_data_remaining = INT_MAX; | |
3853 | } | |
3854 | else if (http->state == HTTP_STATE_OPTIONS || | |
3855 | http->state == HTTP_STATE_HEAD || | |
3856 | http->state == HTTP_STATE_PUT || | |
3857 | http->state == HTTP_STATE_TRACE || | |
cb7f98ee MS |
3858 | http->state == HTTP_STATE_CONNECT || |
3859 | http->state == HTTP_STATE_STATUS) | |
a469f8a5 MS |
3860 | { |
3861 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
cb7f98ee | 3862 | "was %s.", http_state_string(http->state))); |
a469f8a5 MS |
3863 | http->state = HTTP_STATE_WAITING; |
3864 | } | |
3865 | else | |
3866 | { | |
3867 | /* | |
3868 | * Force data_encoding and data_length to be set according to the response | |
3869 | * headers... | |
3870 | */ | |
3871 | ||
3872 | http_set_length(http); | |
3873 | ||
db8b865d | 3874 | #ifdef HAVE_LIBZ |
a469f8a5 MS |
3875 | /* |
3876 | * Then start any content encoding... | |
3877 | */ | |
3878 | ||
3879 | DEBUG_puts("1httpWriteResponse: Calling http_content_coding_start."); | |
3880 | http_content_coding_start(http, | |
3881 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
db8b865d | 3882 | #endif /* HAVE_LIBZ */ |
a469f8a5 MS |
3883 | } |
3884 | ||
3885 | return (0); | |
3886 | } | |
3887 | ||
3888 | ||
411affcf | 3889 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) |
3890 | /* | |
3891 | * 'http_bio_ctrl()' - Control the HTTP connection. | |
3892 | */ | |
3893 | ||
3894 | static long /* O - Result/data */ | |
3895 | http_bio_ctrl(BIO *h, /* I - BIO data */ | |
3896 | int cmd, /* I - Control command */ | |
3897 | long arg1, /* I - First argument */ | |
3898 | void *arg2) /* I - Second argument */ | |
3899 | { | |
3900 | switch (cmd) | |
3901 | { | |
3902 | default : | |
3903 | return (0); | |
3904 | ||
3905 | case BIO_CTRL_RESET : | |
3906 | h->ptr = NULL; | |
3907 | return (0); | |
3908 | ||
3909 | case BIO_C_SET_FILE_PTR : | |
3910 | h->ptr = arg2; | |
3911 | h->init = 1; | |
3912 | return (1); | |
3913 | ||
3914 | case BIO_C_GET_FILE_PTR : | |
3915 | if (arg2) | |
3916 | { | |
3917 | *((void **)arg2) = h->ptr; | |
3918 | return (1); | |
3919 | } | |
3920 | else | |
3921 | return (0); | |
ef55b745 | 3922 | |
411affcf | 3923 | case BIO_CTRL_DUP : |
3924 | case BIO_CTRL_FLUSH : | |
3925 | return (1); | |
3926 | } | |
3927 | } | |
3928 | ||
3929 | ||
3930 | /* | |
3931 | * 'http_bio_free()' - Free OpenSSL data. | |
3932 | */ | |
3933 | ||
3934 | static int /* O - 1 on success, 0 on failure */ | |
3935 | http_bio_free(BIO *h) /* I - BIO data */ | |
3936 | { | |
3937 | if (!h) | |
3938 | return (0); | |
3939 | ||
3940 | if (h->shutdown) | |
3941 | { | |
3942 | h->init = 0; | |
3943 | h->flags = 0; | |
3944 | } | |
3945 | ||
3946 | return (1); | |
3947 | } | |
3948 | ||
3949 | ||
3950 | /* | |
3951 | * 'http_bio_new()' - Initialize an OpenSSL BIO structure. | |
3952 | */ | |
3953 | ||
3954 | static int /* O - 1 on success, 0 on failure */ | |
3955 | http_bio_new(BIO *h) /* I - BIO data */ | |
3956 | { | |
3957 | if (!h) | |
3958 | return (0); | |
3959 | ||
3960 | h->init = 0; | |
3961 | h->num = 0; | |
3962 | h->ptr = NULL; | |
3963 | h->flags = 0; | |
3964 | ||
3965 | return (1); | |
3966 | } | |
3967 | ||
3968 | ||
3969 | /* | |
3970 | * 'http_bio_puts()' - Send a string for OpenSSL. | |
3971 | */ | |
3972 | ||
3973 | static int /* O - Bytes written */ | |
3974 | http_bio_puts(BIO *h, /* I - BIO data */ | |
3975 | const char *str) /* I - String to write */ | |
3976 | { | |
b86bc4cf | 3977 | #ifdef WIN32 |
3978 | return (send(((http_t *)h->ptr)->fd, str, (int)strlen(str), 0)); | |
3979 | #else | |
411affcf | 3980 | return (send(((http_t *)h->ptr)->fd, str, strlen(str), 0)); |
b86bc4cf | 3981 | #endif /* WIN32 */ |
411affcf | 3982 | } |
3983 | ||
3984 | ||
3985 | /* | |
3986 | * 'http_bio_read()' - Read data for OpenSSL. | |
3987 | */ | |
3988 | ||
3989 | static int /* O - Bytes read */ | |
3990 | http_bio_read(BIO *h, /* I - BIO data */ | |
3991 | char *buf, /* I - Buffer */ | |
3992 | int size) /* I - Number of bytes to read */ | |
3993 | { | |
3994 | http_t *http; /* HTTP connection */ | |
3995 | ||
3996 | ||
3997 | http = (http_t *)h->ptr; | |
3998 | ||
3999 | if (!http->blocking) | |
4000 | { | |
4001 | /* | |
4002 | * Make sure we have data before we read... | |
4003 | */ | |
4004 | ||
85dda01c | 4005 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 4006 | { |
f228370c MS |
4007 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
4008 | continue; | |
4009 | ||
b86bc4cf | 4010 | #ifdef WIN32 |
4011 | http->error = WSAETIMEDOUT; | |
4012 | #else | |
411affcf | 4013 | http->error = ETIMEDOUT; |
b86bc4cf | 4014 | #endif /* WIN32 */ |
4015 | ||
411affcf | 4016 | return (-1); |
4017 | } | |
4018 | } | |
4019 | ||
4020 | return (recv(http->fd, buf, size, 0)); | |
4021 | } | |
4022 | ||
4023 | ||
4024 | /* | |
4025 | * 'http_bio_write()' - Write data for OpenSSL. | |
4026 | */ | |
4027 | ||
4028 | static int /* O - Bytes written */ | |
4029 | http_bio_write(BIO *h, /* I - BIO data */ | |
4030 | const char *buf, /* I - Buffer to write */ | |
4031 | int num) /* I - Number of bytes to write */ | |
4032 | { | |
4033 | return (send(((http_t *)h->ptr)->fd, buf, num, 0)); | |
4034 | } | |
4035 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
4036 | ||
4037 | ||
a469f8a5 MS |
4038 | #ifdef HAVE_LIBZ |
4039 | /* | |
4040 | * 'http_content_coding_finish()' - Finish doing any content encoding. | |
4041 | */ | |
4042 | ||
4043 | static void | |
4044 | http_content_coding_finish( | |
4045 | http_t *http) /* I - HTTP connection */ | |
4046 | { | |
4047 | int zerr; /* Compression status */ | |
06cefec3 | 4048 | Byte dummy[1]; /* Dummy read buffer */ |
a469f8a5 MS |
4049 | |
4050 | ||
4051 | switch (http->coding) | |
4052 | { | |
4053 | case _HTTP_CODING_DEFLATE : | |
4054 | case _HTTP_CODING_GZIP : | |
06cefec3 MS |
4055 | http->stream.next_in = dummy; |
4056 | http->stream.avail_in = 0; | |
4057 | ||
a469f8a5 MS |
4058 | do |
4059 | { | |
4060 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
4061 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
4062 | ||
4063 | zerr = deflate(&(http->stream), Z_FINISH); | |
4064 | ||
4065 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
4066 | if (http->wused == sizeof(http->wbuffer)) | |
4067 | httpFlushWrite(http); | |
4068 | } | |
4069 | while (zerr == Z_OK); | |
4070 | ||
4071 | deflateEnd(&(http->stream)); | |
4072 | ||
4073 | if (http->wused) | |
4074 | httpFlushWrite(http); | |
4075 | break; | |
4076 | ||
4077 | case _HTTP_CODING_INFLATE : | |
4078 | case _HTTP_CODING_GUNZIP : | |
4079 | inflateEnd(&(http->stream)); | |
0fa6c7fa MS |
4080 | free(http->dbuffer); |
4081 | http->dbuffer = NULL; | |
a469f8a5 MS |
4082 | break; |
4083 | ||
4084 | default : | |
4085 | break; | |
4086 | } | |
4087 | ||
4088 | http->coding = _HTTP_CODING_IDENTITY; | |
4089 | } | |
4090 | ||
4091 | ||
4092 | /* | |
4093 | * 'http_content_coding_start()' - Start doing content encoding. | |
4094 | */ | |
4095 | ||
4096 | static void | |
4097 | http_content_coding_start( | |
4098 | http_t *http, /* I - HTTP connection */ | |
4099 | const char *value) /* I - Value of Content-Encoding */ | |
4100 | { | |
4101 | int zerr; /* Error/status */ | |
4102 | _http_coding_t coding; /* Content coding value */ | |
4103 | ||
4104 | ||
4105 | DEBUG_printf(("http_content_coding_start(http=%p, value=\"%s\")", http, | |
4106 | value)); | |
4107 | ||
4108 | if (http->coding != _HTTP_CODING_IDENTITY) | |
4109 | { | |
4110 | DEBUG_printf(("1http_content_coding_start: http->coding already %d.", | |
4111 | http->coding)); | |
4112 | return; | |
4113 | } | |
4114 | else if (!strcmp(value, "x-gzip") || !strcmp(value, "gzip")) | |
4115 | { | |
cb7f98ee MS |
4116 | if (http->state == HTTP_STATE_GET_SEND || |
4117 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
4118 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_GZIP : |
4119 | _HTTP_CODING_GUNZIP; | |
cb7f98ee MS |
4120 | else if (http->state == HTTP_STATE_POST_RECV || |
4121 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
4122 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_GZIP : |
4123 | _HTTP_CODING_GUNZIP; | |
4124 | else | |
4125 | { | |
4126 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
4127 | return; | |
4128 | } | |
4129 | } | |
4130 | else if (!strcmp(value, "x-deflate") || !strcmp(value, "deflate")) | |
4131 | { | |
cb7f98ee MS |
4132 | if (http->state == HTTP_STATE_GET_SEND || |
4133 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
4134 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_DEFLATE : |
4135 | _HTTP_CODING_INFLATE; | |
cb7f98ee MS |
4136 | else if (http->state == HTTP_STATE_POST_RECV || |
4137 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
4138 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_DEFLATE : |
4139 | _HTTP_CODING_INFLATE; | |
4140 | else | |
4141 | { | |
4142 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
4143 | return; | |
4144 | } | |
4145 | } | |
4146 | else | |
4147 | { | |
4148 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
4149 | return; | |
4150 | } | |
4151 | ||
4152 | memset(&(http->stream), 0, sizeof(http->stream)); | |
4153 | ||
4154 | switch (coding) | |
4155 | { | |
4156 | case _HTTP_CODING_DEFLATE : | |
4157 | case _HTTP_CODING_GZIP : | |
4158 | if (http->wused) | |
4159 | httpFlushWrite(http); | |
4160 | ||
db8b865d MS |
4161 | /* |
4162 | * Window size for compression is 11 bits - optimal based on PWG Raster | |
4163 | * sample files on pwg.org. -11 is raw deflate, 27 is gzip, per ZLIB | |
4164 | * documentation. | |
4165 | */ | |
4166 | ||
a469f8a5 MS |
4167 | if ((zerr = deflateInit2(&(http->stream), Z_DEFAULT_COMPRESSION, |
4168 | Z_DEFLATED, | |
db8b865d | 4169 | coding == _HTTP_CODING_DEFLATE ? -11 : 27, 7, |
a469f8a5 MS |
4170 | Z_DEFAULT_STRATEGY)) < Z_OK) |
4171 | { | |
cb7f98ee | 4172 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
4173 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
4174 | return; | |
4175 | } | |
4176 | break; | |
4177 | ||
4178 | case _HTTP_CODING_INFLATE : | |
4179 | case _HTTP_CODING_GUNZIP : | |
0fa6c7fa | 4180 | if ((http->dbuffer = malloc(HTTP_MAX_BUFFER)) == NULL) |
a469f8a5 | 4181 | { |
cb7f98ee | 4182 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa | 4183 | http->error = errno; |
a469f8a5 MS |
4184 | return; |
4185 | } | |
0fa6c7fa | 4186 | |
db8b865d MS |
4187 | /* |
4188 | * Window size for decompression is up to 15 bits (maximum supported). | |
4189 | * -15 is raw inflate, 31 is gunzip, per ZLIB documentation. | |
4190 | */ | |
4191 | ||
0fa6c7fa | 4192 | if ((zerr = inflateInit2(&(http->stream), |
db8b865d | 4193 | coding == _HTTP_CODING_INFLATE ? -15 : 31)) |
0fa6c7fa MS |
4194 | < Z_OK) |
4195 | { | |
4196 | free(http->dbuffer); | |
4197 | http->dbuffer = NULL; | |
cb7f98ee | 4198 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa MS |
4199 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
4200 | return; | |
4201 | } | |
4202 | ||
4203 | http->stream.avail_in = 0; | |
4204 | http->stream.next_in = http->dbuffer; | |
a469f8a5 MS |
4205 | break; |
4206 | ||
4207 | default : | |
4208 | break; | |
4209 | } | |
4210 | ||
4211 | http->coding = coding; | |
4212 | ||
4213 | DEBUG_printf(("1http_content_coding_start: http->coding now %d.", | |
4214 | http->coding)); | |
4215 | } | |
4216 | #endif /* HAVE_LIBZ */ | |
4217 | ||
4218 | ||
db8b865d MS |
4219 | /* |
4220 | * 'http_create()' - Create an unconnected HTTP connection. | |
4221 | */ | |
4222 | ||
4223 | static http_t * /* O - HTTP connection */ | |
4224 | http_create( | |
4225 | const char *host, /* I - Hostname */ | |
4226 | int port, /* I - Port number */ | |
4227 | http_addrlist_t *addrlist, /* I - Address list or NULL */ | |
4228 | int family, /* I - Address family or AF_UNSPEC */ | |
4229 | http_encryption_t encryption, /* I - Encryption to use */ | |
4230 | int blocking, /* I - 1 for blocking mode */ | |
4231 | _http_mode_t mode) /* I - _HTTP_MODE_CLIENT or _SERVER */ | |
4232 | { | |
4233 | http_t *http; /* New HTTP connection */ | |
4234 | char service[255]; /* Service name */ | |
4235 | http_addrlist_t *myaddrlist = NULL; /* My address list */ | |
4236 | ||
4237 | ||
4238 | DEBUG_printf(("4http_create(host=\"%s\", port=%d, addrlist=%p, family=%d, " | |
4239 | "encryption=%d, blocking=%d, mode=%d)", host, port, addrlist, | |
4240 | family, encryption, blocking, mode)); | |
4241 | ||
4242 | if (!host && mode == _HTTP_MODE_CLIENT) | |
4243 | return (NULL); | |
4244 | ||
4245 | httpInitialize(); | |
4246 | ||
4247 | /* | |
4248 | * Lookup the host... | |
4249 | */ | |
4250 | ||
4251 | if (addrlist) | |
4252 | { | |
4253 | myaddrlist = httpAddrCopyList(addrlist); | |
4254 | } | |
4255 | else | |
4256 | { | |
4257 | snprintf(service, sizeof(service), "%d", port); | |
4258 | ||
4259 | myaddrlist = httpAddrGetList(host, family, service); | |
4260 | } | |
4261 | ||
4262 | if (!myaddrlist) | |
4263 | return (NULL); | |
4264 | ||
4265 | /* | |
4266 | * Allocate memory for the structure... | |
4267 | */ | |
4268 | ||
4269 | if ((http = calloc(sizeof(http_t), 1)) == NULL) | |
4270 | { | |
cb7f98ee | 4271 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); |
db8b865d MS |
4272 | httpAddrFreeList(addrlist); |
4273 | return (NULL); | |
4274 | } | |
4275 | ||
4276 | /* | |
4277 | * Initialize the HTTP data... | |
4278 | */ | |
4279 | ||
4280 | http->mode = mode; | |
4281 | http->activity = time(NULL); | |
4282 | http->addrlist = myaddrlist; | |
4283 | http->blocking = blocking; | |
4284 | http->fd = -1; | |
4285 | #ifdef HAVE_GSSAPI | |
4286 | http->gssctx = GSS_C_NO_CONTEXT; | |
4287 | http->gssname = GSS_C_NO_NAME; | |
4288 | #endif /* HAVE_GSSAPI */ | |
cb7f98ee | 4289 | http->status = HTTP_STATUS_CONTINUE; |
db8b865d MS |
4290 | http->version = HTTP_VERSION_1_1; |
4291 | ||
4292 | if (host) | |
4293 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
4294 | ||
4295 | if (port == 443) /* Always use encryption for https */ | |
4296 | http->encryption = HTTP_ENCRYPTION_ALWAYS; | |
4297 | else | |
4298 | http->encryption = encryption; | |
4299 | ||
4300 | http_set_wait(http); | |
4301 | ||
4302 | /* | |
4303 | * Return the new structure... | |
4304 | */ | |
4305 | ||
4306 | return (http); | |
4307 | } | |
4308 | ||
4309 | /* For OS X 10.8 and earlier */ | |
4310 | http_t *_httpCreate(const char *host, int port, http_addrlist_t *addrlist, | |
4311 | http_encryption_t encryption, int family) | |
4312 | { return (http_create(host, port, addrlist, family, encryption, 1, | |
4313 | _HTTP_MODE_CLIENT)); } | |
4314 | ||
4315 | ||
ae71f5de MS |
4316 | #ifdef DEBUG |
4317 | /* | |
4318 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
4319 | */ | |
4320 | ||
4321 | static void | |
4322 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
4323 | const char *buffer, /* I - Buffer to dump */ | |
4324 | int bytes) /* I - Bytes to dump */ | |
4325 | { | |
4326 | int i, j, /* Looping vars */ | |
4327 | ch; /* Current character */ | |
4328 | char line[255], /* Line buffer */ | |
4329 | *start, /* Start of line after prefix */ | |
4330 | *ptr; /* Pointer into line */ | |
4331 | ||
4332 | ||
f11a948a | 4333 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
4334 | return; |
4335 | ||
83e08001 | 4336 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 4337 | |
f11a948a | 4338 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
4339 | start = line + strlen(line); |
4340 | ||
4341 | for (i = 0; i < bytes; i += 16) | |
4342 | { | |
4343 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
4344 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
4345 | ||
4346 | while (j < 16) | |
4347 | { | |
5a9febac | 4348 | memcpy(ptr, " ", 3); |
ae71f5de MS |
4349 | ptr += 2; |
4350 | j ++; | |
4351 | } | |
4352 | ||
5a9febac | 4353 | memcpy(ptr, " ", 3); |
ae71f5de MS |
4354 | ptr += 2; |
4355 | ||
4356 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
4357 | { | |
4358 | ch = buffer[i + j] & 255; | |
4359 | ||
4360 | if (ch < ' ' || ch >= 127) | |
4361 | ch = '.'; | |
4362 | ||
4363 | *ptr++ = ch; | |
4364 | } | |
4365 | ||
4366 | *ptr = '\0'; | |
4367 | DEBUG_puts(line); | |
4368 | } | |
4369 | } | |
4370 | #endif /* DEBUG */ | |
4371 | ||
4372 | ||
ef416fc2 | 4373 | /* |
4374 | * 'http_field()' - Return the field index for a field name. | |
4375 | */ | |
4376 | ||
ae71f5de MS |
4377 | static http_field_t /* O - Field index */ |
4378 | http_field(const char *name) /* I - String name */ | |
ef416fc2 | 4379 | { |
ae71f5de | 4380 | int i; /* Looping var */ |
ef416fc2 | 4381 | |
4382 | ||
4383 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
88f9aafc | 4384 | if (_cups_strcasecmp(name, http_fields[i]) == 0) |
ef416fc2 | 4385 | return ((http_field_t)i); |
4386 | ||
4387 | return (HTTP_FIELD_UNKNOWN); | |
4388 | } | |
4389 | ||
4390 | ||
0fa6c7fa MS |
4391 | /* |
4392 | * 'http_read()' - Read a buffer from a HTTP connection. | |
4393 | * | |
4394 | * This function does the low-level read from the socket, retrying and timing | |
4395 | * out as needed. | |
4396 | */ | |
4397 | ||
4398 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
4399 | http_read(http_t *http, /* I - Connection to server */ | |
4400 | char *buffer, /* I - Buffer */ | |
4401 | size_t length) /* I - Maximum bytes to read */ | |
4402 | { | |
4403 | ssize_t bytes; /* Bytes read */ | |
4404 | ||
4405 | ||
4406 | DEBUG_printf(("http_read(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, | |
4407 | buffer, CUPS_LLCAST length)); | |
4408 | ||
4409 | if (!http->blocking) | |
4410 | { | |
4411 | while (!httpWait(http, http->wait_value)) | |
4412 | { | |
4413 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4414 | continue; | |
4415 | ||
4416 | DEBUG_puts("2http_read: Timeout."); | |
4417 | return (0); | |
4418 | } | |
4419 | } | |
4420 | ||
4421 | DEBUG_printf(("2http_read: Reading %d bytes into buffer.", (int)length)); | |
4422 | ||
4423 | do | |
4424 | { | |
4425 | #ifdef HAVE_SSL | |
4426 | if (http->tls) | |
4427 | bytes = http_read_ssl(http, buffer, length); | |
4428 | else | |
4429 | #endif /* HAVE_SSL */ | |
4430 | bytes = recv(http->fd, buffer, length, 0); | |
4431 | ||
4432 | if (bytes < 0) | |
4433 | { | |
4434 | #ifdef WIN32 | |
4435 | if (WSAGetLastError() != WSAEINTR) | |
4436 | { | |
4437 | http->error = WSAGetLastError(); | |
4438 | return (-1); | |
4439 | } | |
4440 | else if (WSAGetLastError() == WSAEWOULDBLOCK) | |
4441 | { | |
4442 | if (!http->timeout_cb || | |
4443 | !(*http->timeout_cb)(http, http->timeout_data)) | |
4444 | { | |
4445 | http->error = WSAEWOULDBLOCK; | |
4446 | return (-1); | |
4447 | } | |
4448 | } | |
4449 | #else | |
4450 | DEBUG_printf(("2http_read: %s", strerror(errno))); | |
4451 | ||
4452 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
4453 | { | |
4454 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
4455 | { | |
4456 | http->error = errno; | |
4457 | return (-1); | |
4458 | } | |
4459 | else if (!http->timeout_cb && errno != EAGAIN) | |
4460 | { | |
4461 | http->error = errno; | |
4462 | return (-1); | |
4463 | } | |
4464 | } | |
4465 | else if (errno != EINTR) | |
4466 | { | |
4467 | http->error = errno; | |
4468 | return (-1); | |
4469 | } | |
4470 | #endif /* WIN32 */ | |
4471 | } | |
4472 | } | |
4473 | while (bytes < 0); | |
4474 | ||
4475 | DEBUG_printf(("2http_read: Read " CUPS_LLFMT " bytes into buffer.", | |
4476 | CUPS_LLCAST bytes)); | |
4477 | #ifdef DEBUG | |
4478 | if (bytes > 0) | |
6961465f | 4479 | http_debug_hex("http_read", buffer, (int)bytes); |
0fa6c7fa MS |
4480 | #endif /* DEBUG */ |
4481 | ||
4482 | if (bytes < 0) | |
4483 | { | |
4484 | #ifdef WIN32 | |
4485 | if (WSAGetLastError() == WSAEINTR) | |
4486 | bytes = 0; | |
4487 | else | |
4488 | http->error = WSAGetLastError(); | |
4489 | #else | |
4490 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) | |
4491 | bytes = 0; | |
4492 | else | |
4493 | http->error = errno; | |
4494 | #endif /* WIN32 */ | |
4495 | } | |
4496 | else if (bytes == 0) | |
4497 | { | |
4498 | http->error = EPIPE; | |
4499 | return (0); | |
4500 | } | |
4501 | ||
4502 | return (bytes); | |
4503 | } | |
4504 | ||
4505 | ||
4506 | /* | |
4507 | * 'http_read_buffered()' - Do a buffered read from a HTTP connection. | |
4508 | * | |
4509 | * This function reads data from the HTTP buffer or from the socket, as needed. | |
4510 | */ | |
4511 | ||
4512 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
4513 | http_read_buffered(http_t *http, /* I - Connection to server */ | |
4514 | char *buffer, /* I - Buffer */ | |
4515 | size_t length) /* I - Maximum bytes to read */ | |
4516 | { | |
4517 | ssize_t bytes; /* Bytes read */ | |
4518 | ||
4519 | ||
4520 | DEBUG_printf(("http_read_buffered(http=%p, buffer=%p, length=" CUPS_LLFMT | |
4521 | ") used=%d", | |
4522 | http, buffer, CUPS_LLCAST length, http->used)); | |
4523 | ||
4524 | if (http->used > 0) | |
4525 | { | |
4526 | if (length > (size_t)http->used) | |
4527 | bytes = (size_t)http->used; | |
4528 | else | |
4529 | bytes = length; | |
4530 | ||
4531 | DEBUG_printf(("2http_read: Grabbing %d bytes from input buffer.", | |
4532 | (int)bytes)); | |
4533 | ||
4534 | memcpy(buffer, http->buffer, bytes); | |
4535 | http->used -= (int)bytes; | |
4536 | ||
4537 | if (http->used > 0) | |
4538 | memmove(http->buffer, http->buffer + bytes, http->used); | |
4539 | } | |
4540 | else | |
4541 | bytes = http_read(http, buffer, length); | |
4542 | ||
4543 | return (bytes); | |
4544 | } | |
4545 | ||
4546 | ||
4547 | /* | |
4548 | * 'http_read_chunk()' - Read a chunk from a HTTP connection. | |
4549 | * | |
4550 | * This function reads and validates the chunk length, then does a buffered read | |
4551 | * returning the number of bytes placed in the buffer. | |
4552 | */ | |
4553 | ||
4554 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
4555 | http_read_chunk(http_t *http, /* I - Connection to server */ | |
4556 | char *buffer, /* I - Buffer */ | |
4557 | size_t length) /* I - Maximum bytes to read */ | |
4558 | { | |
4559 | DEBUG_printf(("http_read_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
4560 | http, buffer, CUPS_LLCAST length)); | |
4561 | ||
4562 | if (http->data_remaining <= 0) | |
4563 | { | |
4564 | char len[32]; /* Length string */ | |
4565 | ||
4566 | if (!httpGets(len, sizeof(len), http)) | |
4567 | { | |
4568 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4569 | return (0); | |
4570 | } | |
4571 | ||
4572 | if (!len[0]) | |
4573 | { | |
4574 | DEBUG_puts("1http_read_chunk: Blank chunk length, trying again..."); | |
4575 | if (!httpGets(len, sizeof(len), http)) | |
4576 | { | |
4577 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4578 | return (0); | |
4579 | } | |
4580 | } | |
4581 | ||
4582 | http->data_remaining = strtoll(len, NULL, 16); | |
4583 | ||
4584 | if (http->data_remaining < 0) | |
4585 | { | |
4586 | DEBUG_printf(("1http_read_chunk: Negative chunk length \"%s\" (" | |
4587 | CUPS_LLFMT ")", len, CUPS_LLCAST http->data_remaining)); | |
4588 | return (0); | |
4589 | } | |
4590 | ||
4591 | DEBUG_printf(("2http_read_chunk: Got chunk length \"%s\" (" CUPS_LLFMT ")", | |
4592 | len, CUPS_LLCAST http->data_remaining)); | |
4593 | ||
4594 | if (http->data_remaining == 0) | |
4595 | { | |
4596 | /* | |
4597 | * 0-length chunk, grab trailing blank line... | |
4598 | */ | |
4599 | ||
4600 | httpGets(len, sizeof(len), http); | |
4601 | } | |
4602 | } | |
4603 | ||
4604 | DEBUG_printf(("2http_read_chunk: data_remaining=" CUPS_LLFMT, | |
4605 | CUPS_LLCAST http->data_remaining)); | |
4606 | ||
4607 | if (http->data_remaining <= 0) | |
4608 | return (0); | |
4609 | else if (length > (size_t)http->data_remaining) | |
4610 | length = (size_t)http->data_remaining; | |
4611 | ||
4612 | return (http_read_buffered(http, buffer, length)); | |
4613 | } | |
4614 | ||
4615 | ||
ef416fc2 | 4616 | #ifdef HAVE_SSL |
4617 | /* | |
4618 | * 'http_read_ssl()' - Read from a SSL/TLS connection. | |
4619 | */ | |
4620 | ||
4621 | static int /* O - Bytes read */ | |
568fa3fa | 4622 | http_read_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 4623 | char *buf, /* I - Buffer to store data */ |
4624 | int len) /* I - Length of buffer */ | |
4625 | { | |
4626 | # if defined(HAVE_LIBSSL) | |
4627 | return (SSL_read((SSL *)(http->tls), buf, len)); | |
4628 | ||
4629 | # elif defined(HAVE_GNUTLS) | |
ef55b745 MS |
4630 | ssize_t result; /* Return value */ |
4631 | ||
4632 | ||
7cf5915e | 4633 | result = gnutls_record_recv(http->tls, buf, len); |
ef55b745 MS |
4634 | |
4635 | if (result < 0 && !errno) | |
4636 | { | |
4637 | /* | |
4638 | * Convert GNU TLS error to errno value... | |
4639 | */ | |
4640 | ||
4641 | switch (result) | |
4642 | { | |
4643 | case GNUTLS_E_INTERRUPTED : | |
4644 | errno = EINTR; | |
4645 | break; | |
4646 | ||
4647 | case GNUTLS_E_AGAIN : | |
4648 | errno = EAGAIN; | |
4649 | break; | |
4650 | ||
4651 | default : | |
4652 | errno = EPIPE; | |
4653 | break; | |
4654 | } | |
4655 | ||
4656 | result = -1; | |
4657 | } | |
4658 | ||
4659 | return ((int)result); | |
ef416fc2 | 4660 | |
4661 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 4662 | int result; /* Return value */ |
ef416fc2 | 4663 | OSStatus error; /* Error info */ |
4664 | size_t processed; /* Number of bytes processed */ | |
4665 | ||
4666 | ||
7cf5915e | 4667 | error = SSLRead(http->tls, buf, len, &processed); |
83e08001 MS |
4668 | DEBUG_printf(("6http_read_ssl: error=%d, processed=%d", (int)error, |
4669 | (int)processed)); | |
fa73b229 | 4670 | switch (error) |
ef416fc2 | 4671 | { |
fa73b229 | 4672 | case 0 : |
4673 | result = (int)processed; | |
4674 | break; | |
84315f46 | 4675 | |
fa73b229 | 4676 | case errSSLWouldBlock : |
b423cd4c | 4677 | if (processed) |
4678 | result = (int)processed; | |
4679 | else | |
4680 | { | |
4681 | result = -1; | |
83e08001 | 4682 | errno = EINTR; |
b423cd4c | 4683 | } |
fa73b229 | 4684 | break; |
84315f46 MS |
4685 | |
4686 | case errSSLClosedGraceful : | |
fa73b229 | 4687 | default : |
84315f46 MS |
4688 | if (processed) |
4689 | result = (int)processed; | |
4690 | else | |
4691 | { | |
4692 | result = -1; | |
83e08001 | 4693 | errno = EPIPE; |
84315f46 | 4694 | } |
fa73b229 | 4695 | break; |
ef416fc2 | 4696 | } |
fa73b229 | 4697 | |
4698 | return (result); | |
83e08001 | 4699 | |
cc754834 MS |
4700 | # elif defined(HAVE_SSPISSL) |
4701 | return _sspiRead((_sspi_struct_t*) http->tls, buf, len); | |
ef416fc2 | 4702 | # endif /* HAVE_LIBSSL */ |
4703 | } | |
4704 | #endif /* HAVE_SSL */ | |
4705 | ||
4706 | ||
4707 | /* | |
4708 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
4709 | */ | |
4710 | ||
a469f8a5 MS |
4711 | static int /* O - 0 on success, non-zero on error */ |
4712 | http_send(http_t *http, /* I - Connection to server */ | |
4713 | http_state_t request, /* I - Request code */ | |
4714 | const char *uri) /* I - URI */ | |
ef416fc2 | 4715 | { |
a469f8a5 MS |
4716 | int i; /* Looping var */ |
4717 | char buf[1024]; /* Encoded URI buffer */ | |
4718 | const char *value; /* Field value */ | |
4719 | static const char * const codes[] = /* Request code strings */ | |
4720 | { | |
ef416fc2 | 4721 | NULL, |
4722 | "OPTIONS", | |
4723 | "GET", | |
4724 | NULL, | |
4725 | "HEAD", | |
4726 | "POST", | |
4727 | NULL, | |
4728 | NULL, | |
4729 | "PUT", | |
4730 | NULL, | |
4731 | "DELETE", | |
4732 | "TRACE", | |
a469f8a5 MS |
4733 | "CLOSE", |
4734 | NULL, | |
4735 | NULL | |
ef416fc2 | 4736 | }; |
ef416fc2 | 4737 | |
4738 | ||
cb7f98ee | 4739 | DEBUG_printf(("4http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 4740 | http, codes[request], uri)); |
4741 | ||
4742 | if (http == NULL || uri == NULL) | |
4743 | return (-1); | |
4744 | ||
4745 | /* | |
4746 | * Set the User-Agent field if it isn't already... | |
4747 | */ | |
4748 | ||
4749 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
db8b865d MS |
4750 | { |
4751 | if (http->default_user_agent) | |
4752 | httpSetField(http, HTTP_FIELD_USER_AGENT, http->default_user_agent); | |
4753 | else | |
4754 | httpSetField(http, HTTP_FIELD_USER_AGENT, cupsUserAgent()); | |
4755 | } | |
ef416fc2 | 4756 | |
a469f8a5 MS |
4757 | /* |
4758 | * Set the Accept-Encoding field if it isn't already... | |
4759 | */ | |
4760 | ||
c1420c87 MS |
4761 | if (!http->accept_encoding && http->default_accept_encoding) |
4762 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, | |
4763 | http->default_accept_encoding); | |
a469f8a5 | 4764 | |
ef416fc2 | 4765 | /* |
4766 | * Encode the URI as needed... | |
4767 | */ | |
4768 | ||
839a51c8 | 4769 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 4770 | |
4771 | /* | |
4772 | * See if we had an error the last time around; if so, reconnect... | |
4773 | */ | |
4774 | ||
cb7f98ee MS |
4775 | if (http->fd < 0 || http->status == HTTP_STATUS_ERROR || |
4776 | http->status >= HTTP_STATUS_BAD_REQUEST) | |
4777 | { | |
4778 | DEBUG_printf(("5http_send: Reconnecting, fd=%d, status=%d, tls_upgrade=%d", | |
4779 | http->fd, http->status, http->tls_upgrade)); | |
4780 | ||
4781 | if (httpReconnect2(http, 30000, NULL)) | |
fa73b229 | 4782 | return (-1); |
cb7f98ee | 4783 | } |
ef416fc2 | 4784 | |
d09495fa | 4785 | /* |
4786 | * Flush any written data that is pending... | |
4787 | */ | |
4788 | ||
4789 | if (http->wused) | |
536bc2c6 MS |
4790 | { |
4791 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 4792 | if (httpReconnect2(http, 30000, NULL)) |
536bc2c6 MS |
4793 | return (-1); |
4794 | } | |
d09495fa | 4795 | |
ef416fc2 | 4796 | /* |
4797 | * Send the request header... | |
4798 | */ | |
4799 | ||
d09495fa | 4800 | http->state = request; |
a469f8a5 | 4801 | http->data_encoding = HTTP_ENCODING_FIELDS; |
d09495fa | 4802 | |
cb7f98ee | 4803 | if (request == HTTP_STATE_POST || request == HTTP_STATE_PUT) |
ef416fc2 | 4804 | http->state ++; |
4805 | ||
cb7f98ee | 4806 | http->status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 4807 | |
4808 | #ifdef HAVE_SSL | |
cb7f98ee | 4809 | if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) |
ef416fc2 | 4810 | { |
4811 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
a469f8a5 | 4812 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4813 | } |
4814 | #endif /* HAVE_SSL */ | |
4815 | ||
4816 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
4817 | { | |
cb7f98ee | 4818 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4819 | return (-1); |
4820 | } | |
4821 | ||
4822 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
a469f8a5 | 4823 | if ((value = httpGetField(http, i)) != NULL && *value) |
ef416fc2 | 4824 | { |
cb7f98ee | 4825 | DEBUG_printf(("5http_send: %s: %s", http_fields[i], value)); |
ef416fc2 | 4826 | |
37e7e6e0 MS |
4827 | if (i == HTTP_FIELD_HOST) |
4828 | { | |
a469f8a5 MS |
4829 | if (httpPrintf(http, "Host: %s:%d\r\n", value, |
4830 | httpAddrPort(http->hostaddr)) < 1) | |
37e7e6e0 | 4831 | { |
cb7f98ee | 4832 | http->status = HTTP_STATUS_ERROR; |
37e7e6e0 MS |
4833 | return (-1); |
4834 | } | |
4835 | } | |
a469f8a5 | 4836 | else if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) |
ef416fc2 | 4837 | { |
cb7f98ee | 4838 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4839 | return (-1); |
4840 | } | |
4841 | } | |
4842 | ||
4843 | if (http->cookie) | |
4844 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
4845 | { | |
cb7f98ee | 4846 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4847 | return (-1); |
4848 | } | |
4849 | ||
cb7f98ee MS |
4850 | DEBUG_printf(("5http_send: expect=%d, mode=%d, state=%d", http->expect, |
4851 | http->mode, http->state)); | |
4852 | ||
4853 | if (http->expect == HTTP_STATUS_CONTINUE && http->mode == _HTTP_MODE_CLIENT && | |
4854 | (http->state == HTTP_STATE_POST_RECV || | |
4855 | http->state == HTTP_STATE_PUT_RECV)) | |
b423cd4c | 4856 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) |
4857 | { | |
cb7f98ee | 4858 | http->status = HTTP_STATUS_ERROR; |
b423cd4c | 4859 | return (-1); |
4860 | } | |
4861 | ||
ef416fc2 | 4862 | if (httpPrintf(http, "\r\n") < 1) |
4863 | { | |
cb7f98ee | 4864 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4865 | return (-1); |
4866 | } | |
4867 | ||
536bc2c6 MS |
4868 | if (httpFlushWrite(http) < 0) |
4869 | return (-1); | |
4870 | ||
a469f8a5 | 4871 | http_set_length(http); |
ef416fc2 | 4872 | httpClearFields(http); |
4873 | ||
f7deaa1a | 4874 | /* |
b94498cf | 4875 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 4876 | */ |
4877 | ||
ef55b745 MS |
4878 | if (http->field_authorization && http->authstring && |
4879 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 4880 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 4881 | { |
4882 | http->_authstring[0] = '\0'; | |
4883 | ||
4884 | if (http->authstring != http->_authstring) | |
4885 | free(http->authstring); | |
ef55b745 | 4886 | |
f7deaa1a | 4887 | http->authstring = http->_authstring; |
4888 | } | |
4889 | ||
ef416fc2 | 4890 | return (0); |
4891 | } | |
4892 | ||
4893 | ||
4894 | #ifdef HAVE_SSL | |
c1420c87 | 4895 | # if defined(HAVE_CDSASSL) |
7cf5915e MS |
4896 | /* |
4897 | * 'http_set_credentials()' - Set the SSL/TLS credentials. | |
4898 | */ | |
4899 | ||
4900 | static int /* O - Status of connection */ | |
4901 | http_set_credentials(http_t *http) /* I - Connection to server */ | |
4902 | { | |
4903 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
7cf5915e MS |
4904 | OSStatus error = 0; /* Error code */ |
4905 | http_tls_credentials_t credentials = NULL; | |
4906 | /* TLS credentials */ | |
7cf5915e MS |
4907 | |
4908 | ||
4909 | DEBUG_printf(("7http_set_credentials(%p)", http)); | |
4910 | ||
7cf5915e MS |
4911 | /* |
4912 | * Prefer connection specific credentials... | |
4913 | */ | |
4914 | ||
4915 | if ((credentials = http->tls_credentials) == NULL) | |
4916 | credentials = cg->tls_credentials; | |
4917 | ||
7cf5915e MS |
4918 | if (credentials) |
4919 | { | |
4920 | error = SSLSetCertificate(http->tls, credentials); | |
4921 | DEBUG_printf(("4http_set_credentials: SSLSetCertificate, error=%d", | |
4922 | (int)error)); | |
4923 | } | |
4924 | else | |
4925 | DEBUG_puts("4http_set_credentials: No credentials to set."); | |
4926 | ||
4927 | return (error); | |
7cf5915e | 4928 | } |
c1420c87 | 4929 | # endif /* HAVE_CDSASSL */ |
9b66acc5 | 4930 | #endif /* HAVE_SSL */ |
7cf5915e MS |
4931 | |
4932 | ||
a469f8a5 MS |
4933 | /* |
4934 | * 'http_set_length()' - Set the data_encoding and data_remaining values. | |
4935 | */ | |
4936 | ||
4937 | static off_t /* O - Remainder or -1 on error */ | |
4938 | http_set_length(http_t *http) /* I - Connection */ | |
4939 | { | |
4940 | off_t remaining; /* Remainder */ | |
4941 | ||
4942 | ||
4943 | DEBUG_printf(("http_set_length(http=%p) mode=%d state=%s", http, http->mode, | |
cb7f98ee | 4944 | http_state_string(http->state))); |
a469f8a5 MS |
4945 | |
4946 | if ((remaining = httpGetLength2(http)) >= 0) | |
4947 | { | |
4948 | if (http->mode == _HTTP_MODE_SERVER && | |
4949 | http->state != HTTP_STATE_GET_SEND && | |
c41769ff | 4950 | http->state != HTTP_STATE_PUT && |
a469f8a5 MS |
4951 | http->state != HTTP_STATE_POST && |
4952 | http->state != HTTP_STATE_POST_SEND) | |
4953 | { | |
4954 | DEBUG_puts("1http_set_length: Not setting data_encoding/remaining."); | |
4955 | return (remaining); | |
4956 | } | |
4957 | ||
4958 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], | |
4959 | "chunked")) | |
4960 | { | |
4961 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4962 | "HTTP_ENCODING_CHUNKED."); | |
4963 | http->data_encoding = HTTP_ENCODING_CHUNKED; | |
4964 | } | |
4965 | else | |
4966 | { | |
4967 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4968 | "HTTP_ENCODING_LENGTH."); | |
4969 | http->data_encoding = HTTP_ENCODING_LENGTH; | |
4970 | } | |
4971 | ||
4972 | DEBUG_printf(("1http_set_length: Setting data_remaining to " CUPS_LLFMT ".", | |
4973 | CUPS_LLCAST remaining)); | |
4974 | http->data_remaining = remaining; | |
4975 | ||
4976 | if (remaining <= INT_MAX) | |
4977 | http->_data_remaining = remaining; | |
4978 | else | |
4979 | http->_data_remaining = INT_MAX; | |
4980 | } | |
4981 | ||
4982 | return (remaining); | |
4983 | } | |
4984 | ||
85dda01c MS |
4985 | /* |
4986 | * 'http_set_timeout()' - Set the socket timeout values. | |
4987 | */ | |
4988 | ||
4989 | static void | |
4990 | http_set_timeout(int fd, /* I - File descriptor */ | |
4991 | double timeout) /* I - Timeout in seconds */ | |
4992 | { | |
4993 | #ifdef WIN32 | |
4994 | DWORD tv = (DWORD)(timeout * 1000); | |
4995 | /* Timeout in milliseconds */ | |
4996 | ||
db8b865d MS |
4997 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4998 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4999 | |
5000 | #else | |
5001 | struct timeval tv; /* Timeout in secs and usecs */ | |
5002 | ||
5003 | tv.tv_sec = (int)timeout; | |
5004 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
5005 | ||
db8b865d MS |
5006 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
5007 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
5008 | #endif /* WIN32 */ |
5009 | } | |
5010 | ||
5011 | ||
5012 | /* | |
5013 | * 'http_set_wait()' - Set the default wait value for reads. | |
5014 | */ | |
5015 | ||
5016 | static void | |
5017 | http_set_wait(http_t *http) /* I - Connection to server */ | |
5018 | { | |
5019 | if (http->blocking) | |
5020 | { | |
5021 | http->wait_value = (int)(http->timeout_value * 1000); | |
5022 | ||
5023 | if (http->wait_value <= 0) | |
5024 | http->wait_value = 60000; | |
5025 | } | |
5026 | else | |
5027 | http->wait_value = 10000; | |
5028 | } | |
5029 | ||
5030 | ||
9b66acc5 | 5031 | #ifdef HAVE_SSL |
ef416fc2 | 5032 | /* |
5033 | * 'http_setup_ssl()' - Set up SSL/TLS support on a connection. | |
5034 | */ | |
5035 | ||
a4845881 | 5036 | static int /* O - 0 on success, -1 on failure */ |
568fa3fa | 5037 | http_setup_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 5038 | { |
12f89d24 MS |
5039 | char hostname[256], /* Hostname */ |
5040 | *hostptr; /* Pointer into hostname */ | |
7cf5915e | 5041 | |
ef416fc2 | 5042 | # ifdef HAVE_LIBSSL |
a4845881 MS |
5043 | SSL_CTX *context; /* Context for encryption */ |
5044 | BIO *bio; /* BIO data */ | |
5045 | const char *message = NULL;/* Error message */ | |
ef416fc2 | 5046 | # elif defined(HAVE_GNUTLS) |
a4845881 | 5047 | int status; /* Status of handshake */ |
ef416fc2 | 5048 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 5049 | /* TLS credentials */ |
ef416fc2 | 5050 | # elif defined(HAVE_CDSASSL) |
0fa6c7fa MS |
5051 | _cups_globals_t *cg = _cupsGlobals(); |
5052 | /* Pointer to library globals */ | |
a4845881 | 5053 | OSStatus error; /* Error code */ |
a4845881 | 5054 | const char *message = NULL;/* Error message */ |
a4845881 MS |
5055 | cups_array_t *credentials; /* Credentials array */ |
5056 | cups_array_t *names; /* CUPS distinguished names */ | |
5057 | CFArrayRef dn_array; /* CF distinguished names array */ | |
5058 | CFIndex count; /* Number of credentials */ | |
5059 | CFDataRef data; /* Certificate data */ | |
5060 | int i; /* Looping var */ | |
5061 | http_credential_t *credential; /* Credential data */ | |
cc754834 | 5062 | # elif defined(HAVE_SSPISSL) |
a4845881 MS |
5063 | TCHAR username[256]; /* Username returned from GetUserName() */ |
5064 | TCHAR commonName[256];/* Common name for certificate */ | |
5065 | DWORD dwSize; /* 32 bit size */ | |
ef416fc2 | 5066 | # endif /* HAVE_LIBSSL */ |
5067 | ||
5068 | ||
e07d4801 | 5069 | DEBUG_printf(("7http_setup_ssl(http=%p)", http)); |
ef416fc2 | 5070 | |
7cf5915e | 5071 | /* |
c1420c87 | 5072 | * Get the hostname to use for SSL... |
7cf5915e MS |
5073 | */ |
5074 | ||
5075 | if (httpAddrLocalhost(http->hostaddr)) | |
12f89d24 | 5076 | { |
12f89d24 MS |
5077 | strlcpy(hostname, "localhost", sizeof(hostname)); |
5078 | } | |
7cf5915e | 5079 | else |
12f89d24 MS |
5080 | { |
5081 | /* | |
c1420c87 | 5082 | * Otherwise make sure the hostname we have does not end in a trailing dot. |
12f89d24 MS |
5083 | */ |
5084 | ||
12f89d24 MS |
5085 | strlcpy(hostname, http->hostname, sizeof(hostname)); |
5086 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
5087 | *hostptr == '.') | |
5088 | *hostptr = '\0'; | |
5089 | } | |
dcb445bc | 5090 | |
ef416fc2 | 5091 | # ifdef HAVE_LIBSSL |
5092 | context = SSL_CTX_new(SSLv23_client_method()); | |
5093 | ||
5094 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
5095 | ||
411affcf | 5096 | bio = BIO_new(_httpBIOMethods()); |
5097 | BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)http); | |
5098 | ||
7cf5915e | 5099 | http->tls = SSL_new(context); |
a4845881 | 5100 | SSL_set_bio(http->tls, bio, bio); |
ef416fc2 | 5101 | |
a29fd7dd | 5102 | # ifdef HAVE_SSL_SET_TLSEXT_HOST_NAME |
dcb445bc | 5103 | SSL_set_tlsext_host_name(http->tls, hostname); |
a29fd7dd | 5104 | # endif /* HAVE_SSL_SET_TLSEXT_HOST_NAME */ |
dcb445bc | 5105 | |
7cf5915e | 5106 | if (SSL_connect(http->tls) != 1) |
ef416fc2 | 5107 | { |
ef416fc2 | 5108 | unsigned long error; /* Error code */ |
5109 | ||
5110 | while ((error = ERR_get_error()) != 0) | |
a4845881 MS |
5111 | { |
5112 | message = ERR_error_string(error, NULL); | |
5113 | DEBUG_printf(("8http_setup_ssl: %s", message)); | |
5114 | } | |
ef416fc2 | 5115 | |
5116 | SSL_CTX_free(context); | |
7cf5915e MS |
5117 | SSL_free(http->tls); |
5118 | http->tls = NULL; | |
ef416fc2 | 5119 | |
5120 | # ifdef WIN32 | |
5121 | http->error = WSAGetLastError(); | |
5122 | # else | |
5123 | http->error = errno; | |
5124 | # endif /* WIN32 */ | |
cb7f98ee | 5125 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 5126 | |
a4845881 MS |
5127 | if (!message) |
5128 | message = _("Unable to establish a secure connection to host."); | |
5129 | ||
e924ce80 | 5130 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); |
a4845881 MS |
5131 | |
5132 | return (-1); | |
ef416fc2 | 5133 | } |
5134 | ||
5135 | # elif defined(HAVE_GNUTLS) | |
ef416fc2 | 5136 | credentials = (gnutls_certificate_client_credentials *) |
5137 | malloc(sizeof(gnutls_certificate_client_credentials)); | |
5138 | if (credentials == NULL) | |
5139 | { | |
a4845881 MS |
5140 | DEBUG_printf(("8http_setup_ssl: Unable to allocate credentials: %s", |
5141 | strerror(errno))); | |
5142 | http->error = errno; | |
cb7f98ee MS |
5143 | http->status = HTTP_STATUS_ERROR; |
5144 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
ef416fc2 | 5145 | |
5146 | return (-1); | |
5147 | } | |
5148 | ||
5149 | gnutls_certificate_allocate_credentials(credentials); | |
5150 | ||
7cf5915e MS |
5151 | gnutls_init(&http->tls, GNUTLS_CLIENT); |
5152 | gnutls_set_default_priority(http->tls); | |
dcb445bc MS |
5153 | gnutls_server_name_set(http->tls, GNUTLS_NAME_DNS, hostname, |
5154 | strlen(hostname)); | |
7cf5915e | 5155 | gnutls_credentials_set(http->tls, GNUTLS_CRD_CERTIFICATE, *credentials); |
111ff13a | 5156 | gnutls_transport_set_ptr(http->tls, (gnutls_transport_ptr_t)http); |
7cf5915e MS |
5157 | gnutls_transport_set_pull_function(http->tls, _httpReadGNUTLS); |
5158 | gnutls_transport_set_push_function(http->tls, _httpWriteGNUTLS); | |
ef416fc2 | 5159 | |
a4845881 | 5160 | while ((status = gnutls_handshake(http->tls)) != GNUTLS_E_SUCCESS) |
ef416fc2 | 5161 | { |
a4845881 MS |
5162 | DEBUG_printf(("8http_setup_ssl: gnutls_handshake returned %d (%s)", |
5163 | status, gnutls_strerror(status))); | |
ef416fc2 | 5164 | |
a4845881 MS |
5165 | if (gnutls_error_is_fatal(status)) |
5166 | { | |
5167 | http->error = EIO; | |
cb7f98ee | 5168 | http->status = HTTP_STATUS_ERROR; |
85b5d1df | 5169 | |
6961465f | 5170 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, gnutls_strerror(status), 0); |
a4845881 MS |
5171 | |
5172 | gnutls_deinit(http->tls); | |
5173 | gnutls_certificate_free_credentials(*credentials); | |
5174 | free(credentials); | |
5175 | http->tls = NULL; | |
5176 | ||
5177 | return (-1); | |
5178 | } | |
ef416fc2 | 5179 | } |
5180 | ||
7cf5915e | 5181 | http->tls_credentials = credentials; |
ef416fc2 | 5182 | |
5183 | # elif defined(HAVE_CDSASSL) | |
c1420c87 MS |
5184 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, kSSLClientSide, |
5185 | kSSLStreamType)) == NULL) | |
e53920b9 | 5186 | { |
c1420c87 MS |
5187 | DEBUG_puts("4http_setup_ssl: SSLCreateContext failed."); |
5188 | http->error = errno = ENOMEM; | |
cb7f98ee MS |
5189 | http->status = HTTP_STATUS_ERROR; |
5190 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
e53920b9 | 5191 | |
89d46774 | 5192 | return (-1); |
e53920b9 | 5193 | } |
ef416fc2 | 5194 | |
7cf5915e MS |
5195 | error = SSLSetConnection(http->tls, http); |
5196 | DEBUG_printf(("4http_setup_ssl: SSLSetConnection, error=%d", (int)error)); | |
5197 | ||
5198 | if (!error) | |
5199 | { | |
5200 | error = SSLSetIOFuncs(http->tls, _httpReadCDSA, _httpWriteCDSA); | |
5201 | DEBUG_printf(("4http_setup_ssl: SSLSetIOFuncs, error=%d", (int)error)); | |
5202 | } | |
5203 | ||
7cf5915e MS |
5204 | if (!error) |
5205 | { | |
c1420c87 MS |
5206 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, |
5207 | true); | |
5208 | DEBUG_printf(("4http_setup_ssl: SSLSetSessionOption, error=%d", | |
10ddcf65 MS |
5209 | (int)error)); |
5210 | } | |
5211 | ||
ef416fc2 | 5212 | if (!error) |
7cf5915e MS |
5213 | { |
5214 | if (cg->client_cert_cb) | |
5215 | { | |
5216 | error = SSLSetSessionOption(http->tls, | |
5217 | kSSLSessionOptionBreakOnCertRequested, true); | |
5218 | DEBUG_printf(("4http_setup_ssl: kSSLSessionOptionBreakOnCertRequested, " | |
5219 | "error=%d", (int)error)); | |
5220 | } | |
5221 | else | |
5222 | { | |
5223 | error = http_set_credentials(http); | |
5224 | DEBUG_printf(("4http_setup_ssl: http_set_credentials, error=%d", | |
5225 | (int)error)); | |
5226 | } | |
5227 | } | |
5228 | ||
10ddcf65 MS |
5229 | /* |
5230 | * Let the server know which hostname/domain we are trying to connect to | |
5231 | * in case it wants to serve up a certificate with a matching common name. | |
5232 | */ | |
5233 | ||
ed486911 | 5234 | if (!error) |
7cf5915e | 5235 | { |
dcb445bc | 5236 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
7cf5915e MS |
5237 | |
5238 | DEBUG_printf(("4http_setup_ssl: SSLSetPeerDomainName, error=%d", | |
5239 | (int)error)); | |
5240 | } | |
ed486911 | 5241 | |
ef416fc2 | 5242 | if (!error) |
b423cd4c | 5243 | { |
7cf5915e MS |
5244 | int done = 0; /* Are we done yet? */ |
5245 | ||
5246 | while (!error && !done) | |
5247 | { | |
5248 | error = SSLHandshake(http->tls); | |
5249 | ||
85dda01c | 5250 | DEBUG_printf(("4http_setup_ssl: SSLHandshake returned %d.", (int)error)); |
7cf5915e MS |
5251 | |
5252 | switch (error) | |
5253 | { | |
5254 | case noErr : | |
5255 | done = 1; | |
5256 | break; | |
5257 | ||
5258 | case errSSLWouldBlock : | |
82cc1f9a MS |
5259 | error = noErr; /* Force a retry */ |
5260 | usleep(1000); /* in 1 millisecond */ | |
7cf5915e MS |
5261 | break; |
5262 | ||
5263 | case errSSLServerAuthCompleted : | |
5264 | error = 0; | |
5265 | if (cg->server_cert_cb) | |
5266 | { | |
5267 | error = httpCopyCredentials(http, &credentials); | |
5268 | if (!error) | |
5269 | { | |
5270 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
5271 | cg->server_cert_data); | |
5272 | httpFreeCredentials(credentials); | |
5273 | } | |
5274 | ||
10ddcf65 MS |
5275 | DEBUG_printf(("4http_setup_ssl: Server certificate callback " |
5276 | "returned %d.", (int)error)); | |
7cf5915e MS |
5277 | } |
5278 | break; | |
5279 | ||
5280 | case errSSLClientCertRequested : | |
5281 | error = 0; | |
5282 | ||
5283 | if (cg->client_cert_cb) | |
5284 | { | |
5285 | names = NULL; | |
82f97232 | 5286 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && |
7cf5915e MS |
5287 | dn_array) |
5288 | { | |
5289 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
5290 | { | |
5291 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
5292 | { | |
5293 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
5294 | ||
82cc1f9a | 5295 | if ((credential = malloc(sizeof(*credential))) != NULL) |
7cf5915e MS |
5296 | { |
5297 | credential->datalen = CFDataGetLength(data); | |
5298 | if ((credential->data = malloc(credential->datalen))) | |
5299 | { | |
82f97232 | 5300 | memcpy((void *)credential->data, CFDataGetBytePtr(data), |
7cf5915e MS |
5301 | credential->datalen); |
5302 | cupsArrayAdd(names, credential); | |
5303 | } | |
5a9febac MS |
5304 | else |
5305 | free(credential); | |
7cf5915e MS |
5306 | } |
5307 | } | |
5308 | } | |
5309 | ||
5310 | CFRelease(dn_array); | |
5311 | } | |
5312 | ||
5313 | if (!error) | |
5314 | { | |
82f97232 | 5315 | error = (cg->client_cert_cb)(http, http->tls, names, |
7cf5915e MS |
5316 | cg->client_cert_data); |
5317 | ||
85dda01c | 5318 | DEBUG_printf(("4http_setup_ssl: Client certificate callback " |
7cf5915e MS |
5319 | "returned %d.", (int)error)); |
5320 | } | |
5321 | ||
5322 | httpFreeCredentials(names); | |
5323 | } | |
5324 | break; | |
5325 | ||
5326 | case errSSLUnknownRootCert : | |
5327 | message = _("Unable to establish a secure connection to host " | |
5328 | "(untrusted certificate)."); | |
5329 | break; | |
5330 | ||
5331 | case errSSLNoRootCert : | |
5332 | message = _("Unable to establish a secure connection to host " | |
5333 | "(self-signed certificate)."); | |
5334 | break; | |
5335 | ||
5336 | case errSSLCertExpired : | |
5337 | message = _("Unable to establish a secure connection to host " | |
5338 | "(expired certificate)."); | |
5339 | break; | |
5340 | ||
5341 | case errSSLCertNotYetValid : | |
5342 | message = _("Unable to establish a secure connection to host " | |
5343 | "(certificate not yet valid)."); | |
5344 | break; | |
5345 | ||
5346 | case errSSLHostNameMismatch : | |
5347 | message = _("Unable to establish a secure connection to host " | |
5348 | "(host name mismatch)."); | |
5349 | break; | |
5350 | ||
5351 | case errSSLXCertChainInvalid : | |
5352 | message = _("Unable to establish a secure connection to host " | |
5353 | "(certificate chain invalid)."); | |
5354 | break; | |
5355 | ||
5356 | case errSSLConnectionRefused : | |
5357 | message = _("Unable to establish a secure connection to host " | |
5358 | "(peer dropped connection before responding)."); | |
5359 | break; | |
5360 | ||
5361 | default : | |
5362 | break; | |
5363 | } | |
5364 | } | |
b423cd4c | 5365 | } |
ef416fc2 | 5366 | |
89d46774 | 5367 | if (error) |
ef416fc2 | 5368 | { |
5369 | http->error = error; | |
cb7f98ee | 5370 | http->status = HTTP_STATUS_ERROR; |
7cf5915e MS |
5371 | errno = ECONNREFUSED; |
5372 | ||
c1420c87 | 5373 | CFRelease(http->tls); |
7cf5915e | 5374 | http->tls = NULL; |
ef416fc2 | 5375 | |
7cf5915e MS |
5376 | /* |
5377 | * If an error string wasn't set by the callbacks use a generic one... | |
5378 | */ | |
5379 | ||
5380 | if (!message) | |
5381 | #ifdef HAVE_CSSMERRORSTRING | |
5382 | message = cssmErrorString(error); | |
5383 | #else | |
5384 | message = _("Unable to establish a secure connection to host."); | |
5385 | #endif /* HAVE_CSSMERRORSTRING */ | |
ef416fc2 | 5386 | |
cb7f98ee | 5387 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); |
ef416fc2 | 5388 | |
cc754834 MS |
5389 | return (-1); |
5390 | } | |
7cf5915e | 5391 | |
cc754834 | 5392 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 5393 | http->tls = _sspiAlloc(); |
cc754834 | 5394 | |
7cf5915e | 5395 | if (!http->tls) |
a4845881 | 5396 | { |
cb7f98ee | 5397 | _cupsSetHTTPError(HTTP_STATUS_ERROR); |
cc754834 | 5398 | return (-1); |
83e08001 | 5399 | } |
cc754834 | 5400 | |
7cf5915e MS |
5401 | http->tls->sock = http->fd; |
5402 | dwSize = sizeof(username) / sizeof(TCHAR); | |
cc754834 MS |
5403 | GetUserName(username, &dwSize); |
5404 | _sntprintf_s(commonName, sizeof(commonName) / sizeof(TCHAR), | |
5405 | sizeof(commonName) / sizeof(TCHAR), TEXT("CN=%s"), username); | |
5406 | ||
7cf5915e MS |
5407 | if (!_sspiGetCredentials(http->tls_credentials, L"ClientContainer", |
5408 | commonName, FALSE)) | |
cc754834 | 5409 | { |
7cf5915e MS |
5410 | _sspiFree(http->tls_credentials); |
5411 | http->tls_credentials = NULL; | |
a4845881 MS |
5412 | |
5413 | http->error = EIO; | |
cb7f98ee | 5414 | http->status = HTTP_STATUS_ERROR; |
a4845881 | 5415 | |
e924ce80 | 5416 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, |
a4845881 MS |
5417 | _("Unable to establish a secure connection to host."), 1); |
5418 | ||
cc754834 MS |
5419 | return (-1); |
5420 | } | |
5421 | ||
c1420c87 | 5422 | _sspiSetAllowsAnyRoot(http->tls_credentials, TRUE); |
7cf5915e | 5423 | _sspiSetAllowsExpiredCerts(http->tls_credentials, TRUE); |
cc754834 | 5424 | |
dcb445bc | 5425 | if (!_sspiConnect(http->tls_credentials, hostname)) |
cc754834 | 5426 | { |
7cf5915e MS |
5427 | _sspiFree(http->tls_credentials); |
5428 | http->tls_credentials = NULL; | |
a4845881 MS |
5429 | |
5430 | http->error = EIO; | |
cb7f98ee | 5431 | http->status = HTTP_STATUS_ERROR; |
a4845881 | 5432 | |
e924ce80 | 5433 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, |
a4845881 MS |
5434 | _("Unable to establish a secure connection to host."), 1); |
5435 | ||
ef416fc2 | 5436 | return (-1); |
5437 | } | |
5438 | # endif /* HAVE_CDSASSL */ | |
5439 | ||
ef416fc2 | 5440 | return (0); |
5441 | } | |
ef416fc2 | 5442 | |
5443 | ||
ef416fc2 | 5444 | /* |
5445 | * 'http_shutdown_ssl()' - Shut down SSL/TLS on a connection. | |
5446 | */ | |
5447 | ||
5448 | static void | |
568fa3fa | 5449 | http_shutdown_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 5450 | { |
5451 | # ifdef HAVE_LIBSSL | |
89d46774 | 5452 | SSL_CTX *context; /* Context for encryption */ |
ef416fc2 | 5453 | |
a4845881 | 5454 | context = SSL_get_SSL_CTX(http->tls); |
ef416fc2 | 5455 | |
a4845881 | 5456 | SSL_shutdown(http->tls); |
ef416fc2 | 5457 | SSL_CTX_free(context); |
a4845881 | 5458 | SSL_free(http->tls); |
ef416fc2 | 5459 | |
5460 | # elif defined(HAVE_GNUTLS) | |
ef416fc2 | 5461 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 5462 | /* TLS credentials */ |
ef416fc2 | 5463 | |
7cf5915e | 5464 | credentials = (gnutls_certificate_client_credentials *)(http->tls_credentials); |
ef416fc2 | 5465 | |
7cf5915e MS |
5466 | gnutls_bye(http->tls, GNUTLS_SHUT_RDWR); |
5467 | gnutls_deinit(http->tls); | |
ef416fc2 | 5468 | gnutls_certificate_free_credentials(*credentials); |
5469 | free(credentials); | |
ef416fc2 | 5470 | |
5471 | # elif defined(HAVE_CDSASSL) | |
7cf5915e | 5472 | while (SSLClose(http->tls) == errSSLWouldBlock) |
b423cd4c | 5473 | usleep(1000); |
5474 | ||
c1420c87 | 5475 | CFRelease(http->tls); |
89d46774 | 5476 | |
7cf5915e MS |
5477 | if (http->tls_credentials) |
5478 | CFRelease(http->tls_credentials); | |
89d46774 | 5479 | |
cc754834 | 5480 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 5481 | _sspiFree(http->tls_credentials); |
ef416fc2 | 5482 | # endif /* HAVE_LIBSSL */ |
5483 | ||
7cf5915e MS |
5484 | http->tls = NULL; |
5485 | http->tls_credentials = NULL; | |
ef416fc2 | 5486 | } |
5487 | #endif /* HAVE_SSL */ | |
5488 | ||
5489 | ||
cb7f98ee MS |
5490 | #ifdef DEBUG |
5491 | /* | |
5492 | * 'http_state_string()' - Return the string associated with a given HTTP state. | |
5493 | */ | |
5494 | ||
5495 | static const char * /* O - State string */ | |
5496 | http_state_string(http_state_t state) /* I - HTTP state */ | |
5497 | { | |
5498 | static char buffer[255]; /* Unknown value buffer */ | |
5499 | static const char * const states[] = /* State strings */ | |
5500 | { | |
5501 | "HTTP_STATE_ERROR", | |
5502 | "HTTP_STATE_WAITING", | |
5503 | "HTTP_STATE_OPTIONS", | |
5504 | "HTTP_STATE_GET", | |
5505 | "HTTP_STATE_GET_SEND", | |
5506 | "HTTP_STATE_HEAD", | |
5507 | "HTTP_STATE_POST", | |
5508 | "HTTP_STATE_POST_RECV", | |
5509 | "HTTP_STATE_POST_SEND", | |
5510 | "HTTP_STATE_PUT", | |
5511 | "HTTP_STATE_PUT_RECV", | |
5512 | "HTTP_STATE_DELETE", | |
5513 | "HTTP_STATE_TRACE", | |
5514 | "HTTP_STATE_CONNECT", | |
5515 | "HTTP_STATE_STATUS", | |
5516 | "HTTP_STATE_UNKNOWN_METHOD", | |
5517 | "HTTP_STATE_UNKNOWN_VERSION" | |
5518 | }; | |
5519 | ||
5520 | if (state >= HTTP_STATE_ERROR && state <= HTTP_STATE_UNKNOWN_VERSION) | |
5521 | return (states[state - HTTP_STATE_ERROR]); | |
5522 | ||
5523 | snprintf(buffer, sizeof(buffer), "??? %d ???", (int)state); | |
5524 | return (buffer); | |
5525 | } | |
5526 | #endif /* DEBUG */ | |
5527 | ||
5528 | ||
ef416fc2 | 5529 | #ifdef HAVE_SSL |
5530 | /* | |
5531 | * 'http_upgrade()' - Force upgrade to TLS encryption. | |
5532 | */ | |
5533 | ||
89d46774 | 5534 | static int /* O - Status of connection */ |
568fa3fa | 5535 | http_upgrade(http_t *http) /* I - Connection to server */ |
ef416fc2 | 5536 | { |
89d46774 | 5537 | int ret; /* Return value */ |
5538 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 5539 | |
5540 | ||
e07d4801 | 5541 | DEBUG_printf(("7http_upgrade(%p)", http)); |
ef416fc2 | 5542 | |
85b5d1df MS |
5543 | /* |
5544 | * Flush the connection to make sure any previous "Upgrade" message | |
5545 | * has been read. | |
5546 | */ | |
5547 | ||
5548 | httpFlush(http); | |
5549 | ||
ef416fc2 | 5550 | /* |
5551 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
5552 | * request without interfering with the existing request data... | |
5553 | */ | |
5554 | ||
5555 | memcpy(&myhttp, http, sizeof(myhttp)); | |
5556 | ||
5557 | /* | |
5558 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
5559 | * encryption on the link... | |
5560 | */ | |
5561 | ||
cb7f98ee | 5562 | http->tls_upgrade = 1; |
f7deaa1a | 5563 | http->field_authorization = NULL; /* Don't free the auth string */ |
5564 | ||
b86bc4cf | 5565 | httpClearFields(http); |
5566 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
a469f8a5 | 5567 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 5568 | |
b86bc4cf | 5569 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 5570 | { |
5571 | /* | |
5572 | * Wait for the secure connection... | |
5573 | */ | |
5574 | ||
cb7f98ee | 5575 | while (httpUpdate(http) == HTTP_STATUS_CONTINUE); |
ef416fc2 | 5576 | } |
5577 | ||
ef416fc2 | 5578 | /* |
b86bc4cf | 5579 | * Restore the HTTP request data... |
ef416fc2 | 5580 | */ |
5581 | ||
b86bc4cf | 5582 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 5583 | http->data_encoding = myhttp.data_encoding; |
5584 | http->data_remaining = myhttp.data_remaining; | |
5585 | http->_data_remaining = myhttp._data_remaining; | |
5586 | http->expect = myhttp.expect; | |
5587 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 5588 | http->digest_tries = myhttp.digest_tries; |
cb7f98ee | 5589 | http->tls_upgrade = 0; |
ef416fc2 | 5590 | |
5591 | /* | |
5592 | * See if we actually went secure... | |
5593 | */ | |
5594 | ||
5595 | if (!http->tls) | |
5596 | { | |
5597 | /* | |
5598 | * Server does not support HTTP upgrade... | |
5599 | */ | |
5600 | ||
e07d4801 | 5601 | DEBUG_puts("8http_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 5602 | |
5603 | # ifdef WIN32 | |
5604 | closesocket(http->fd); | |
5605 | # else | |
5606 | close(http->fd); | |
5607 | # endif | |
5608 | ||
5609 | http->fd = -1; | |
5610 | ||
5611 | return (-1); | |
5612 | } | |
5613 | else | |
5614 | return (ret); | |
5615 | } | |
5616 | #endif /* HAVE_SSL */ | |
5617 | ||
5618 | ||
ef416fc2 | 5619 | /* |
5620 | * 'http_write()' - Write a buffer to a HTTP connection. | |
5621 | */ | |
ef55b745 | 5622 | |
0fa6c7fa | 5623 | static ssize_t /* O - Number of bytes written */ |
568fa3fa | 5624 | http_write(http_t *http, /* I - Connection to server */ |
f11a948a | 5625 | const char *buffer, /* I - Buffer for data */ |
0fa6c7fa | 5626 | size_t length) /* I - Number of bytes to write */ |
ef416fc2 | 5627 | { |
0fa6c7fa MS |
5628 | ssize_t tbytes, /* Total bytes sent */ |
5629 | bytes; /* Bytes sent */ | |
ef416fc2 | 5630 | |
5631 | ||
0fa6c7fa MS |
5632 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
5633 | buffer, CUPS_LLCAST length)); | |
f11a948a MS |
5634 | http->error = 0; |
5635 | tbytes = 0; | |
ef416fc2 | 5636 | |
5637 | while (length > 0) | |
5638 | { | |
12f89d24 MS |
5639 | DEBUG_printf(("3http_write: About to write %d bytes.", (int)length)); |
5640 | ||
85dda01c MS |
5641 | if (http->timeout_cb) |
5642 | { | |
5643 | #ifdef HAVE_POLL | |
5644 | struct pollfd pfd; /* Polled file descriptor */ | |
5645 | #else | |
5646 | fd_set output_set; /* Output ready for write? */ | |
5647 | struct timeval timeout; /* Timeout value */ | |
5648 | #endif /* HAVE_POLL */ | |
5649 | int nfds; /* Result from select()/poll() */ | |
5650 | ||
5651 | do | |
5652 | { | |
5653 | #ifdef HAVE_POLL | |
5654 | pfd.fd = http->fd; | |
5655 | pfd.events = POLLOUT; | |
5656 | ||
5657 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
82cc1f9a MS |
5658 | (errno == EINTR || errno == EAGAIN)) |
5659 | /* do nothing */; | |
85dda01c MS |
5660 | |
5661 | #else | |
5662 | do | |
5663 | { | |
5664 | FD_ZERO(&output_set); | |
5665 | FD_SET(http->fd, &output_set); | |
5666 | ||
5667 | timeout.tv_sec = http->wait_value / 1000; | |
5668 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
5669 | ||
5670 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
5671 | } | |
5672 | # ifdef WIN32 | |
5673 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
5674 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
5675 | # else | |
5676 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
5677 | # endif /* WIN32 */ | |
5678 | #endif /* HAVE_POLL */ | |
5679 | ||
5680 | if (nfds < 0) | |
5681 | { | |
5682 | http->error = errno; | |
5683 | return (-1); | |
5684 | } | |
5685 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
5686 | { | |
5687 | #ifdef WIN32 | |
83e08001 | 5688 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
5689 | #else |
5690 | http->error = EWOULDBLOCK; | |
5691 | #endif /* WIN32 */ | |
5692 | return (-1); | |
5693 | } | |
5694 | } | |
5695 | while (nfds <= 0); | |
5696 | } | |
5697 | ||
ef416fc2 | 5698 | #ifdef HAVE_SSL |
5699 | if (http->tls) | |
5700 | bytes = http_write_ssl(http, buffer, length); | |
5701 | else | |
5702 | #endif /* HAVE_SSL */ | |
5703 | bytes = send(http->fd, buffer, length, 0); | |
5704 | ||
0fa6c7fa MS |
5705 | DEBUG_printf(("3http_write: Write of " CUPS_LLFMT " bytes returned " |
5706 | CUPS_LLFMT ".", CUPS_LLCAST length, CUPS_LLCAST bytes)); | |
12f89d24 | 5707 | |
ef416fc2 | 5708 | if (bytes < 0) |
5709 | { | |
5710 | #ifdef WIN32 | |
10d09e33 | 5711 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 5712 | continue; |
10d09e33 MS |
5713 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
5714 | { | |
5715 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
5716 | continue; | |
5717 | ||
5718 | http->error = WSAGetLastError(); | |
5719 | } | |
5720 | else if (WSAGetLastError() != http->error && | |
5721 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 5722 | { |
5723 | http->error = WSAGetLastError(); | |
5724 | continue; | |
5725 | } | |
10d09e33 | 5726 | |
ef416fc2 | 5727 | #else |
10d09e33 | 5728 | if (errno == EINTR) |
ef416fc2 | 5729 | continue; |
10d09e33 MS |
5730 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
5731 | { | |
5732 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
5733 | continue; | |
5734 | else if (!http->timeout_cb && errno == EAGAIN) | |
5735 | continue; | |
5736 | ||
5737 | http->error = errno; | |
5738 | } | |
ef416fc2 | 5739 | else if (errno != http->error && errno != ECONNRESET) |
5740 | { | |
5741 | http->error = errno; | |
5742 | continue; | |
5743 | } | |
5744 | #endif /* WIN32 */ | |
5745 | ||
f8b3a85b MS |
5746 | DEBUG_printf(("3http_write: error writing data (%s).", |
5747 | strerror(http->error))); | |
ef416fc2 | 5748 | |
5749 | return (-1); | |
5750 | } | |
5751 | ||
5752 | buffer += bytes; | |
5753 | tbytes += bytes; | |
5754 | length -= bytes; | |
5755 | } | |
5756 | ||
5757 | #ifdef DEBUG | |
ae71f5de | 5758 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 5759 | #endif /* DEBUG */ |
5760 | ||
0fa6c7fa | 5761 | DEBUG_printf(("3http_write: Returning " CUPS_LLFMT ".", CUPS_LLCAST tbytes)); |
f8b3a85b | 5762 | |
ef416fc2 | 5763 | return (tbytes); |
5764 | } | |
5765 | ||
5766 | ||
5767 | /* | |
5768 | * 'http_write_chunk()' - Write a chunked buffer. | |
5769 | */ | |
5770 | ||
0fa6c7fa | 5771 | static ssize_t /* O - Number bytes written */ |
568fa3fa | 5772 | http_write_chunk(http_t *http, /* I - Connection to server */ |
ef416fc2 | 5773 | const char *buffer, /* I - Buffer to write */ |
0fa6c7fa | 5774 | size_t length) /* I - Length of buffer */ |
ef416fc2 | 5775 | { |
0fa6c7fa MS |
5776 | char header[16]; /* Chunk header */ |
5777 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 5778 | |
f11a948a | 5779 | |
0fa6c7fa MS |
5780 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
5781 | http, buffer, CUPS_LLCAST length)); | |
ef416fc2 | 5782 | |
5783 | /* | |
5784 | * Write the chunk header, data, and trailer. | |
5785 | */ | |
5786 | ||
0fa6c7fa MS |
5787 | snprintf(header, sizeof(header), "%x\r\n", (unsigned)length); |
5788 | if (http_write(http, header, strlen(header)) < 0) | |
ef416fc2 | 5789 | { |
0fa6c7fa | 5790 | DEBUG_puts("8http_write_chunk: http_write of length failed."); |
ef416fc2 | 5791 | return (-1); |
5792 | } | |
5793 | ||
5794 | if ((bytes = http_write(http, buffer, length)) < 0) | |
5795 | { | |
0fa6c7fa | 5796 | DEBUG_puts("8http_write_chunk: http_write of buffer failed."); |
ef416fc2 | 5797 | return (-1); |
5798 | } | |
5799 | ||
5800 | if (http_write(http, "\r\n", 2) < 0) | |
5801 | { | |
0fa6c7fa | 5802 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed."); |
ef416fc2 | 5803 | return (-1); |
5804 | } | |
5805 | ||
5806 | return (bytes); | |
5807 | } | |
5808 | ||
5809 | ||
5810 | #ifdef HAVE_SSL | |
5811 | /* | |
5812 | * 'http_write_ssl()' - Write to a SSL/TLS connection. | |
5813 | */ | |
5814 | ||
5815 | static int /* O - Bytes written */ | |
568fa3fa | 5816 | http_write_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 5817 | const char *buf, /* I - Buffer holding data */ |
5818 | int len) /* I - Length of buffer */ | |
5819 | { | |
f8b3a85b MS |
5820 | ssize_t result; /* Return value */ |
5821 | ||
5822 | ||
5823 | DEBUG_printf(("2http_write_ssl(http=%p, buf=%p, len=%d)", http, buf, len)); | |
5824 | ||
ef416fc2 | 5825 | # if defined(HAVE_LIBSSL) |
f8b3a85b | 5826 | result = SSL_write((SSL *)(http->tls), buf, len); |
ef416fc2 | 5827 | |
5828 | # elif defined(HAVE_GNUTLS) | |
7cf5915e | 5829 | result = gnutls_record_send(http->tls, buf, len); |
ef55b745 MS |
5830 | |
5831 | if (result < 0 && !errno) | |
5832 | { | |
5833 | /* | |
5834 | * Convert GNU TLS error to errno value... | |
5835 | */ | |
5836 | ||
5837 | switch (result) | |
5838 | { | |
5839 | case GNUTLS_E_INTERRUPTED : | |
5840 | errno = EINTR; | |
5841 | break; | |
5842 | ||
5843 | case GNUTLS_E_AGAIN : | |
5844 | errno = EAGAIN; | |
5845 | break; | |
5846 | ||
5847 | default : | |
5848 | errno = EPIPE; | |
5849 | break; | |
5850 | } | |
5851 | ||
5852 | result = -1; | |
5853 | } | |
5854 | ||
ef416fc2 | 5855 | # elif defined(HAVE_CDSASSL) |
5856 | OSStatus error; /* Error info */ | |
5857 | size_t processed; /* Number of bytes processed */ | |
5858 | ||
5859 | ||
7cf5915e | 5860 | error = SSLWrite(http->tls, buf, len, &processed); |
ef416fc2 | 5861 | |
fa73b229 | 5862 | switch (error) |
ef416fc2 | 5863 | { |
fa73b229 | 5864 | case 0 : |
5865 | result = (int)processed; | |
5866 | break; | |
84315f46 | 5867 | |
fa73b229 | 5868 | case errSSLWouldBlock : |
b423cd4c | 5869 | if (processed) |
5870 | result = (int)processed; | |
5871 | else | |
5872 | { | |
5873 | result = -1; | |
ef55b745 | 5874 | errno = EINTR; |
b423cd4c | 5875 | } |
fa73b229 | 5876 | break; |
84315f46 MS |
5877 | |
5878 | case errSSLClosedGraceful : | |
fa73b229 | 5879 | default : |
84315f46 MS |
5880 | if (processed) |
5881 | result = (int)processed; | |
5882 | else | |
5883 | { | |
5884 | result = -1; | |
5885 | errno = EPIPE; | |
5886 | } | |
fa73b229 | 5887 | break; |
ef416fc2 | 5888 | } |
cc754834 | 5889 | # elif defined(HAVE_SSPISSL) |
84315f46 | 5890 | return _sspiWrite((_sspi_struct_t *)http->tls, (void *)buf, len); |
ef416fc2 | 5891 | # endif /* HAVE_LIBSSL */ |
f8b3a85b MS |
5892 | |
5893 | DEBUG_printf(("3http_write_ssl: Returning %d.", (int)result)); | |
5894 | ||
5895 | return ((int)result); | |
ef416fc2 | 5896 | } |
5897 | #endif /* HAVE_SSL */ | |
5898 | ||
5899 | ||
5900 | /* | |
f2d18633 | 5901 | * End of "$Id$". |
ef416fc2 | 5902 | */ |