]>
Commit | Line | Data |
---|---|---|
ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
996acce8 | 4 | * HTTP routines for CUPS. |
ef416fc2 | 5 | * |
996acce8 MS |
6 | * Copyright 2007-2013 by Apple Inc. |
7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. | |
ef416fc2 | 8 | * |
996acce8 MS |
9 | * This file contains Kerberos support code, copyright 2006 by |
10 | * Jelmer Vernooij. | |
f7deaa1a | 11 | * |
996acce8 MS |
12 | * These coded instructions, statements, and computer programs are the |
13 | * property of Apple Inc. and are protected by Federal copyright | |
14 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
15 | * which should have been included with this file. If this file is | |
16 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 17 | * |
996acce8 | 18 | * This file is subject to the Apple OS-Developed Software exception. |
ef416fc2 | 19 | */ |
20 | ||
21 | /* | |
22 | * Include necessary headers... | |
23 | */ | |
24 | ||
71e16022 | 25 | #include "cups-private.h" |
ef416fc2 | 26 | #include <fcntl.h> |
83e08001 | 27 | #include <math.h> |
cc754834 MS |
28 | #ifdef WIN32 |
29 | # include <tchar.h> | |
30 | #else | |
ef416fc2 | 31 | # include <signal.h> |
32 | # include <sys/time.h> | |
33 | # include <sys/resource.h> | |
cc754834 | 34 | #endif /* WIN32 */ |
f7deaa1a | 35 | #ifdef HAVE_POLL |
dcb445bc | 36 | # include <poll.h> |
f7deaa1a | 37 | #endif /* HAVE_POLL */ |
ef416fc2 | 38 | |
39 | ||
ef416fc2 | 40 | /* |
41 | * Local functions... | |
42 | */ | |
43 | ||
a469f8a5 MS |
44 | #ifdef HAVE_LIBZ |
45 | static void http_content_coding_finish(http_t *http); | |
46 | static void http_content_coding_start(http_t *http, | |
47 | const char *value); | |
48 | #endif /* HAVE_LIBZ */ | |
db8b865d MS |
49 | static http_t *http_create(const char *host, int port, |
50 | http_addrlist_t *addrlist, int family, | |
51 | http_encryption_t encryption, | |
52 | int blocking, _http_mode_t mode); | |
ae71f5de MS |
53 | #ifdef DEBUG |
54 | static void http_debug_hex(const char *prefix, const char *buffer, | |
55 | int bytes); | |
56 | #endif /* DEBUG */ | |
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); | |
a469f8a5 | 66 | static off_t http_set_length(http_t *http); |
85dda01c MS |
67 | static void http_set_timeout(int fd, double timeout); |
68 | static void http_set_wait(http_t *http); | |
2c85b752 | 69 | |
d7225fc2 | 70 | #ifdef HAVE_SSL |
2c85b752 MS |
71 | static size_t http_tls_pending(http_t *http); |
72 | static int http_tls_read(http_t *http, char *buf, int len); | |
73 | static int http_tls_set_credentials(http_t *http); | |
74 | static int http_tls_start(http_t *http); | |
75 | static void http_tls_stop(http_t *http); | |
76 | static int http_tls_upgrade(http_t *http); | |
77 | static int http_tls_write(http_t *http, const char *buf, int len); | |
724e1819 | 78 | # ifdef HAVE_GNUTLS |
2c85b752 MS |
79 | # include "tls-gnutls.c" |
80 | # elif defined(HAVE_CDSASSL) | |
81 | # include "tls-darwin.c" | |
82 | # else | |
83 | # include "tls-sspi.c" | |
724e1819 | 84 | # endif /* HAVE_GNUTLS */ |
ef416fc2 | 85 | #endif /* HAVE_SSL */ |
86 | ||
87 | ||
88 | /* | |
89 | * Local globals... | |
90 | */ | |
91 | ||
92 | static const char * const http_fields[] = | |
93 | { | |
94 | "Accept-Language", | |
95 | "Accept-Ranges", | |
96 | "Authorization", | |
97 | "Connection", | |
98 | "Content-Encoding", | |
99 | "Content-Language", | |
100 | "Content-Length", | |
101 | "Content-Location", | |
102 | "Content-MD5", | |
103 | "Content-Range", | |
104 | "Content-Type", | |
105 | "Content-Version", | |
106 | "Date", | |
107 | "Host", | |
108 | "If-Modified-Since", | |
109 | "If-Unmodified-since", | |
110 | "Keep-Alive", | |
111 | "Last-Modified", | |
112 | "Link", | |
113 | "Location", | |
114 | "Range", | |
115 | "Referer", | |
116 | "Retry-After", | |
117 | "Transfer-Encoding", | |
118 | "Upgrade", | |
119 | "User-Agent", | |
a469f8a5 MS |
120 | "WWW-Authenticate", |
121 | "Accept-Encoding", | |
122 | "Allow", | |
123 | "Server" | |
ef416fc2 | 124 | }; |
125 | ||
126 | ||
a469f8a5 MS |
127 | /* |
128 | * 'httpAcceptConnection()' - Accept a new HTTP client connection from the | |
129 | * specified listening socket. | |
130 | * | |
9c0e8e5d | 131 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
132 | */ |
133 | ||
134 | http_t * /* O - HTTP connection or @code NULL@ */ | |
135 | httpAcceptConnection(int fd, /* I - Listen socket file descriptor */ | |
136 | int blocking) /* I - 1 if the connection should be | |
137 | blocking, 0 otherwise */ | |
138 | { | |
139 | http_t *http; /* HTTP connection */ | |
140 | http_addrlist_t addrlist; /* Dummy address list */ | |
141 | socklen_t addrlen; /* Length of address */ | |
142 | int val; /* Socket option value */ | |
143 | ||
144 | ||
145 | /* | |
146 | * Range check input... | |
147 | */ | |
148 | ||
149 | if (fd < 0) | |
150 | return (NULL); | |
151 | ||
152 | /* | |
153 | * Create the client connection... | |
154 | */ | |
155 | ||
156 | memset(&addrlist, 0, sizeof(addrlist)); | |
157 | ||
db8b865d | 158 | if ((http = http_create(NULL, 0, &addrlist, AF_UNSPEC, |
a469f8a5 MS |
159 | HTTP_ENCRYPTION_IF_REQUESTED, blocking, |
160 | _HTTP_MODE_SERVER)) == NULL) | |
161 | return (NULL); | |
162 | ||
163 | /* | |
164 | * Accept the client and get the remote address... | |
165 | */ | |
166 | ||
167 | addrlen = sizeof(http_addr_t); | |
168 | ||
169 | if ((http->fd = accept(fd, (struct sockaddr *)&(http->addrlist->addr), | |
170 | &addrlen)) < 0) | |
171 | { | |
172 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
173 | httpClose(http); | |
174 | ||
175 | return (NULL); | |
176 | } | |
177 | ||
5ec1fd3d MS |
178 | http->hostaddr = &(http->addrlist->addr); |
179 | ||
180 | if (httpAddrLocalhost(http->hostaddr)) | |
181 | strlcpy(http->hostname, "localhost", sizeof(http->hostname)); | |
182 | else | |
183 | httpAddrString(http->hostaddr, http->hostname, sizeof(http->hostname)); | |
a469f8a5 MS |
184 | |
185 | #ifdef SO_NOSIGPIPE | |
186 | /* | |
187 | * Disable SIGPIPE for this socket. | |
188 | */ | |
189 | ||
190 | val = 1; | |
db8b865d | 191 | setsockopt(http->fd, SOL_SOCKET, SO_NOSIGPIPE, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
192 | #endif /* SO_NOSIGPIPE */ |
193 | ||
194 | /* | |
195 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
196 | * with a slow loopback interface. Since we write large buffers | |
197 | * when sending print files and requests, there shouldn't be any | |
198 | * performance penalty for this... | |
199 | */ | |
200 | ||
201 | val = 1; | |
db8b865d | 202 | setsockopt(http->fd, IPPROTO_TCP, TCP_NODELAY, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
203 | |
204 | #ifdef FD_CLOEXEC | |
205 | /* | |
206 | * Close this socket when starting another process... | |
207 | */ | |
208 | ||
209 | fcntl(http->fd, F_SETFD, FD_CLOEXEC); | |
210 | #endif /* FD_CLOEXEC */ | |
211 | ||
212 | return (http); | |
213 | } | |
214 | ||
215 | ||
7cf5915e MS |
216 | /* |
217 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
218 | * | |
219 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
220 | * | |
f3c17241 | 221 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
222 | */ |
223 | ||
224 | int /* O - 0 on success, -1 on error */ | |
225 | httpAddCredential( | |
226 | cups_array_t *credentials, /* I - Credentials array */ | |
227 | const void *data, /* I - PEM-encoded X.509 data */ | |
228 | size_t datalen) /* I - Length of data */ | |
229 | { | |
230 | http_credential_t *credential; /* Credential data */ | |
231 | ||
232 | ||
233 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
234 | { | |
235 | credential->datalen = datalen; | |
236 | ||
237 | if ((credential->data = malloc(datalen)) != NULL) | |
238 | { | |
239 | memcpy(credential->data, data, datalen); | |
240 | cupsArrayAdd(credentials, credential); | |
241 | return (0); | |
242 | } | |
243 | ||
244 | free(credential); | |
245 | } | |
246 | ||
247 | return (-1); | |
248 | } | |
249 | ||
250 | ||
ecdc0628 | 251 | /* |
252 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
253 | */ | |
254 | ||
255 | void | |
e6b1a6a9 | 256 | httpBlocking(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 257 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
258 | { | |
259 | if (http) | |
85dda01c | 260 | { |
ecdc0628 | 261 | http->blocking = b; |
85dda01c MS |
262 | http_set_wait(http); |
263 | } | |
ecdc0628 | 264 | } |
265 | ||
266 | ||
ef416fc2 | 267 | /* |
268 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
269 | */ | |
270 | ||
ecdc0628 | 271 | int /* O - 0 = no data, 1 = data available */ |
e6b1a6a9 | 272 | httpCheck(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 273 | { |
274 | return (httpWait(http, 0)); | |
275 | } | |
276 | ||
277 | ||
278 | /* | |
279 | * 'httpClearCookie()' - Clear the cookie value(s). | |
280 | * | |
f3c17241 | 281 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 282 | */ |
283 | ||
284 | void | |
e6b1a6a9 | 285 | httpClearCookie(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 286 | { |
287 | if (!http) | |
288 | return; | |
289 | ||
290 | if (http->cookie) | |
291 | { | |
292 | free(http->cookie); | |
293 | http->cookie = NULL; | |
294 | } | |
295 | } | |
296 | ||
297 | ||
ecdc0628 | 298 | /* |
299 | * 'httpClearFields()' - Clear HTTP request fields. | |
300 | */ | |
301 | ||
302 | void | |
e6b1a6a9 | 303 | httpClearFields(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 304 | { |
a469f8a5 MS |
305 | DEBUG_printf(("httpClearFields(http=%p)", http)); |
306 | ||
ecdc0628 | 307 | if (http) |
308 | { | |
309 | memset(http->fields, 0, sizeof(http->fields)); | |
a469f8a5 MS |
310 | |
311 | if (http->mode == _HTTP_MODE_CLIENT) | |
312 | { | |
313 | if (http->hostname[0] == '/') | |
314 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
315 | else | |
316 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
317 | } | |
b423cd4c | 318 | |
f7deaa1a | 319 | if (http->field_authorization) |
320 | { | |
321 | free(http->field_authorization); | |
322 | http->field_authorization = NULL; | |
323 | } | |
324 | ||
a469f8a5 MS |
325 | if (http->accept_encoding) |
326 | { | |
327 | _cupsStrFree(http->accept_encoding); | |
328 | http->accept_encoding = NULL; | |
329 | } | |
330 | ||
331 | if (http->allow) | |
332 | { | |
333 | _cupsStrFree(http->allow); | |
334 | http->allow = NULL; | |
335 | } | |
336 | ||
337 | if (http->server) | |
338 | { | |
339 | _cupsStrFree(http->server); | |
340 | http->server = NULL; | |
341 | } | |
342 | ||
b423cd4c | 343 | http->expect = (http_status_t)0; |
ecdc0628 | 344 | } |
345 | } | |
346 | ||
347 | ||
ef416fc2 | 348 | /* |
6d2f911b | 349 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 350 | */ |
351 | ||
352 | void | |
e6b1a6a9 | 353 | httpClose(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 354 | { |
f7deaa1a | 355 | #ifdef HAVE_GSSAPI |
1f0275e3 | 356 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 357 | #endif /* HAVE_GSSAPI */ |
358 | ||
359 | ||
e07d4801 | 360 | DEBUG_printf(("httpClose(http=%p)", http)); |
ef416fc2 | 361 | |
6d2f911b MS |
362 | /* |
363 | * Range check input... | |
364 | */ | |
365 | ||
ef416fc2 | 366 | if (!http) |
367 | return; | |
368 | ||
6d2f911b MS |
369 | /* |
370 | * Close any open connection... | |
371 | */ | |
372 | ||
373 | _httpDisconnect(http); | |
374 | ||
375 | /* | |
376 | * Free memory used... | |
377 | */ | |
378 | ||
ef416fc2 | 379 | httpAddrFreeList(http->addrlist); |
380 | ||
ef416fc2 | 381 | if (http->cookie) |
382 | free(http->cookie); | |
383 | ||
f7deaa1a | 384 | #ifdef HAVE_GSSAPI |
385 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 386 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 387 | |
388 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 389 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 390 | #endif /* HAVE_GSSAPI */ |
391 | ||
b94498cf | 392 | #ifdef HAVE_AUTHORIZATION_H |
393 | if (http->auth_ref) | |
394 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
395 | #endif /* HAVE_AUTHORIZATION_H */ | |
396 | ||
f7deaa1a | 397 | httpClearFields(http); |
398 | ||
399 | if (http->authstring && http->authstring != http->_authstring) | |
400 | free(http->authstring); | |
401 | ||
ef416fc2 | 402 | free(http); |
403 | } | |
404 | ||
405 | ||
406 | /* | |
407 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e | 408 | * |
a469f8a5 | 409 | * This function is deprecated - use @link httpConnect2@ instead. |
1ff0402e MS |
410 | * |
411 | * @deprecated@ | |
ef416fc2 | 412 | */ |
413 | ||
414 | http_t * /* O - New HTTP connection */ | |
415 | httpConnect(const char *host, /* I - Host to connect to */ | |
416 | int port) /* I - Port number */ | |
417 | { | |
2c85b752 MS |
418 | return (httpConnect2(host, port, NULL, AF_UNSPEC, |
419 | HTTP_ENCRYPTION_IF_REQUESTED, 1, 30000, NULL)); | |
1ff0402e MS |
420 | } |
421 | ||
422 | ||
423 | /* | |
a469f8a5 MS |
424 | * 'httpConnect2()' - Connect to a HTTP server. |
425 | * | |
9c0e8e5d | 426 | * @since CUPS 1.7/OS X 10.9@ |
1ff0402e MS |
427 | */ |
428 | ||
429 | http_t * /* O - New HTTP connection */ | |
a469f8a5 | 430 | httpConnect2( |
1ff0402e MS |
431 | const char *host, /* I - Host to connect to */ |
432 | int port, /* I - Port number */ | |
a469f8a5 MS |
433 | http_addrlist_t *addrlist, /* I - List of addresses or NULL to lookup */ |
434 | int family, /* I - Address family to use or @code AF_UNSPEC@ for any */ | |
435 | http_encryption_t encryption, /* I - Type of encryption to use */ | |
436 | int blocking, /* I - 1 for blocking connection, 0 for non-blocking */ | |
db8b865d | 437 | int msec, /* I - Connection timeout in milliseconds, 0 means don't connect */ |
a469f8a5 | 438 | int *cancel) /* I - Pointer to "cancel" variable */ |
1ff0402e MS |
439 | { |
440 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 441 | |
442 | ||
a469f8a5 MS |
443 | DEBUG_printf(("httpConnect2(host=\"%s\", port=%d, addrlist=%p, family=%d, " |
444 | "encryption=%d, blocking=%d, msec=%d, cancel=%p)", host, port, | |
445 | addrlist, family, encryption, blocking, msec, cancel)); | |
1ff0402e | 446 | |
ef416fc2 | 447 | /* |
1ff0402e | 448 | * Create the HTTP structure... |
ef416fc2 | 449 | */ |
450 | ||
db8b865d | 451 | if ((http = http_create(host, port, addrlist, family, encryption, blocking, |
a469f8a5 | 452 | _HTTP_MODE_CLIENT)) == NULL) |
1ff0402e | 453 | return (NULL); |
ef416fc2 | 454 | |
1ff0402e | 455 | /* |
db8b865d | 456 | * Optionally connect to the remote system... |
1ff0402e MS |
457 | */ |
458 | ||
db8b865d | 459 | if (msec == 0 || !httpReconnect2(http, msec, cancel)) |
1ff0402e MS |
460 | return (http); |
461 | ||
462 | /* | |
463 | * Could not connect to any known address - bail out! | |
464 | */ | |
465 | ||
a469f8a5 | 466 | httpClose(http); |
1ff0402e MS |
467 | |
468 | return (NULL); | |
ef416fc2 | 469 | } |
470 | ||
471 | ||
a469f8a5 MS |
472 | /* |
473 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
474 | * | |
475 | * This function is now deprecated. Please use the @link httpConnect2@ function | |
476 | * instead. | |
477 | * | |
478 | * @deprecated@ | |
479 | */ | |
480 | ||
481 | http_t * /* O - New HTTP connection */ | |
482 | httpConnectEncrypt( | |
483 | const char *host, /* I - Host to connect to */ | |
484 | int port, /* I - Port number */ | |
485 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
486 | { | |
487 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", | |
488 | host, port, encryption)); | |
489 | ||
490 | return (httpConnect2(host, port, NULL, AF_UNSPEC, encryption, 1, 30000, | |
491 | NULL)); | |
492 | } | |
493 | ||
494 | ||
ef416fc2 | 495 | /* |
496 | * 'httpDelete()' - Send a DELETE request to the server. | |
497 | */ | |
498 | ||
499 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 500 | httpDelete(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 501 | const char *uri) /* I - URI to delete */ |
502 | { | |
cb7f98ee | 503 | return (http_send(http, HTTP_STATE_DELETE, uri)); |
ef416fc2 | 504 | } |
505 | ||
506 | ||
6d2f911b MS |
507 | /* |
508 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
509 | */ | |
510 | ||
511 | void | |
e6b1a6a9 | 512 | _httpDisconnect(http_t *http) /* I - HTTP connection */ |
6d2f911b MS |
513 | { |
514 | #ifdef HAVE_SSL | |
515 | if (http->tls) | |
2c85b752 | 516 | http_tls_stop(http); |
6d2f911b MS |
517 | #endif /* HAVE_SSL */ |
518 | ||
87e98392 | 519 | httpAddrClose(NULL, http->fd); |
6d2f911b MS |
520 | |
521 | http->fd = -1; | |
522 | } | |
523 | ||
524 | ||
ef416fc2 | 525 | /* |
526 | * 'httpEncryption()' - Set the required encryption on the link. | |
527 | */ | |
528 | ||
529 | int /* O - -1 on error, 0 on success */ | |
e6b1a6a9 | 530 | httpEncryption(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 531 | http_encryption_t e) /* I - New encryption preference */ |
532 | { | |
e07d4801 | 533 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", http, e)); |
ef416fc2 | 534 | |
535 | #ifdef HAVE_SSL | |
536 | if (!http) | |
537 | return (0); | |
538 | ||
d3d89474 MS |
539 | if (http->mode == _HTTP_MODE_CLIENT) |
540 | { | |
541 | http->encryption = e; | |
ef416fc2 | 542 | |
d3d89474 MS |
543 | if ((http->encryption == HTTP_ENCRYPTION_ALWAYS && !http->tls) || |
544 | (http->encryption == HTTP_ENCRYPTION_NEVER && http->tls)) | |
545 | return (httpReconnect2(http, 30000, NULL)); | |
546 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) | |
547 | return (http_tls_upgrade(http)); | |
548 | else | |
549 | return (0); | |
550 | } | |
ef416fc2 | 551 | else |
d3d89474 MS |
552 | { |
553 | if (e == HTTP_ENCRYPTION_NEVER && http->tls) | |
554 | return (-1); | |
555 | ||
556 | http->encryption = e; | |
557 | if (e != HTTP_ENCRYPTION_IF_REQUESTED && !http->tls) | |
558 | return (http_tls_start(http)); | |
559 | else | |
560 | return (0); | |
561 | } | |
ef416fc2 | 562 | #else |
cb7f98ee | 563 | if (e == HTTP_ENCRYPTION_ALWAYS || e == HTTP_ENCRYPTION_REQUIRED) |
ef416fc2 | 564 | return (-1); |
565 | else | |
566 | return (0); | |
567 | #endif /* HAVE_SSL */ | |
568 | } | |
569 | ||
570 | ||
ecdc0628 | 571 | /* |
572 | * 'httpError()' - Get the last error on a connection. | |
573 | */ | |
574 | ||
575 | int /* O - Error code (errno) value */ | |
e6b1a6a9 | 576 | httpError(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 577 | { |
578 | if (http) | |
579 | return (http->error); | |
580 | else | |
581 | return (EINVAL); | |
582 | } | |
583 | ||
584 | ||
48bd1142 MS |
585 | /* |
586 | * 'httpFieldValue()' - Return the HTTP field enumeration value for a field | |
587 | * name. | |
588 | */ | |
589 | ||
590 | http_field_t /* O - Field index */ | |
591 | httpFieldValue(const char *name) /* I - String name */ | |
592 | { | |
593 | int i; /* Looping var */ | |
594 | ||
595 | ||
596 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
597 | if (!_cups_strcasecmp(name, http_fields[i])) | |
598 | return ((http_field_t)i); | |
599 | ||
600 | return (HTTP_FIELD_UNKNOWN); | |
601 | } | |
602 | ||
603 | ||
ef416fc2 | 604 | /* |
605 | * 'httpFlush()' - Flush data from a HTTP connection. | |
606 | */ | |
607 | ||
608 | void | |
e6b1a6a9 | 609 | httpFlush(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 610 | { |
f8b3a85b MS |
611 | char buffer[8192]; /* Junk buffer */ |
612 | int blocking; /* To block or not to block */ | |
613 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 614 | |
615 | ||
f11a948a | 616 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
48bd1142 | 617 | httpStateString(http->state))); |
ef416fc2 | 618 | |
c1420c87 MS |
619 | /* |
620 | * Nothing to do if we are in the "waiting" state... | |
621 | */ | |
622 | ||
623 | if (http->state == HTTP_STATE_WAITING) | |
624 | return; | |
625 | ||
fa73b229 | 626 | /* |
627 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
628 | */ | |
629 | ||
630 | blocking = http->blocking; | |
631 | http->blocking = 0; | |
632 | ||
633 | /* | |
634 | * Read any data we can... | |
635 | */ | |
636 | ||
f8b3a85b | 637 | oldstate = http->state; |
a4d04587 | 638 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 639 | |
640 | /* | |
641 | * Restore blocking and reset the connection if we didn't get all of | |
642 | * the remaining data... | |
643 | */ | |
644 | ||
645 | http->blocking = blocking; | |
646 | ||
a469f8a5 MS |
647 | if (http->state == oldstate && http->state != HTTP_STATE_WAITING && |
648 | http->fd >= 0) | |
fa73b229 | 649 | { |
650 | /* | |
651 | * Didn't get the data back, so close the current connection. | |
652 | */ | |
653 | ||
c41769ff MS |
654 | #ifdef HAVE_LIBZ |
655 | if (http->coding) | |
656 | http_content_coding_finish(http); | |
657 | #endif /* HAVE_LIBZ */ | |
658 | ||
a469f8a5 MS |
659 | DEBUG_puts("1httpFlush: Setting state to HTTP_STATE_WAITING and closing."); |
660 | ||
661 | http->state = HTTP_STATE_WAITING; | |
fa73b229 | 662 | |
663 | #ifdef HAVE_SSL | |
664 | if (http->tls) | |
2c85b752 | 665 | http_tls_stop(http); |
fa73b229 | 666 | #endif /* HAVE_SSL */ |
667 | ||
87e98392 | 668 | httpAddrClose(NULL, http->fd); |
fa73b229 | 669 | |
670 | http->fd = -1; | |
671 | } | |
ef416fc2 | 672 | } |
673 | ||
674 | ||
675 | /* | |
676 | * 'httpFlushWrite()' - Flush data in write buffer. | |
677 | * | |
f3c17241 | 678 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 679 | */ |
680 | ||
681 | int /* O - Bytes written or -1 on error */ | |
e6b1a6a9 | 682 | httpFlushWrite(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 683 | { |
684 | int bytes; /* Bytes written */ | |
685 | ||
686 | ||
a469f8a5 MS |
687 | DEBUG_printf(("httpFlushWrite(http=%p) data_encoding=%d", http, |
688 | http ? http->data_encoding : -1)); | |
ef416fc2 | 689 | |
690 | if (!http || !http->wused) | |
f8b3a85b MS |
691 | { |
692 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
693 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 694 | return (0); |
f8b3a85b | 695 | } |
ef416fc2 | 696 | |
a469f8a5 | 697 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 698 | bytes = http_write_chunk(http, http->wbuffer, http->wused); |
699 | else | |
700 | bytes = http_write(http, http->wbuffer, http->wused); | |
701 | ||
702 | http->wused = 0; | |
703 | ||
22c9029b | 704 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", bytes, errno)); |
f8b3a85b | 705 | |
ef416fc2 | 706 | return (bytes); |
707 | } | |
708 | ||
709 | ||
7cf5915e MS |
710 | /* |
711 | * 'httpFreeCredentials()' - Free an array of credentials. | |
712 | */ | |
713 | ||
714 | void | |
715 | httpFreeCredentials( | |
716 | cups_array_t *credentials) /* I - Array of credentials */ | |
717 | { | |
718 | http_credential_t *credential; /* Credential */ | |
719 | ||
720 | ||
721 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
722 | credential; | |
723 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
724 | { | |
725 | cupsArrayRemove(credentials, credential); | |
726 | free((void *)credential->data); | |
727 | free(credential); | |
728 | } | |
729 | ||
730 | cupsArrayDelete(credentials); | |
731 | } | |
732 | ||
733 | ||
ef416fc2 | 734 | /* |
735 | * 'httpGet()' - Send a GET request to the server. | |
736 | */ | |
737 | ||
738 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 739 | httpGet(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 740 | const char *uri) /* I - URI to get */ |
741 | { | |
cb7f98ee | 742 | return (http_send(http, HTTP_STATE_GET, uri)); |
ef416fc2 | 743 | } |
744 | ||
745 | ||
e6b1a6a9 MS |
746 | /* |
747 | * 'httpGetActivity()' - Get the most recent activity for a connection. | |
748 | * | |
749 | * The return value is the UNIX time of the last read or write. | |
750 | * | |
751 | * @since CUPS 2.0@ | |
752 | */ | |
753 | ||
754 | time_t /* O - Time of last read or write */ | |
755 | httpGetActivity(http_t *http) /* I - HTTP connection */ | |
756 | { | |
757 | return (http ? http->activity : 0); | |
758 | } | |
759 | ||
760 | ||
6961465f MS |
761 | /* |
762 | * 'httpGetAuthString()' - Get the current authorization string. | |
763 | * | |
764 | * The authorization string is set by cupsDoAuthentication() and | |
765 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
766 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
767 | * value. | |
768 | * | |
769 | * @since CUPS 1.3/OS X 10.5@ | |
770 | */ | |
771 | ||
772 | char * /* O - Authorization string */ | |
e6b1a6a9 | 773 | httpGetAuthString(http_t *http) /* I - HTTP connection */ |
6961465f MS |
774 | { |
775 | if (http) | |
776 | return (http->authstring); | |
777 | else | |
778 | return (NULL); | |
779 | } | |
780 | ||
781 | ||
782 | /* | |
783 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
784 | * | |
785 | * @since CUPS 1.2/OS X 10.5@ | |
786 | */ | |
787 | ||
788 | int /* O - 1 if blocking, 0 if non-blocking */ | |
e6b1a6a9 | 789 | httpGetBlocking(http_t *http) /* I - HTTP connection */ |
6961465f MS |
790 | { |
791 | return (http ? http->blocking : 0); | |
792 | } | |
793 | ||
794 | ||
a469f8a5 MS |
795 | /* |
796 | * 'httpGetContentEncoding()' - Get a common content encoding, if any, between | |
797 | * the client and server. | |
798 | * | |
799 | * This function uses the value of the Accepts-Encoding HTTP header and must be | |
800 | * called after receiving a response from the server or a request from the | |
801 | * client. The value returned can be use in subsequent requests (for clients) | |
802 | * or in the response (for servers) in order to compress the content stream. | |
803 | * | |
9c0e8e5d | 804 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
805 | */ |
806 | ||
807 | const char * /* O - Content-Coding value or | |
808 | @code NULL@ for the identity | |
809 | coding. */ | |
2c85b752 | 810 | httpGetContentEncoding(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
811 | { |
812 | #ifdef HAVE_LIBZ | |
813 | if (http && http->accept_encoding) | |
814 | { | |
815 | int i; /* Looping var */ | |
816 | char temp[HTTP_MAX_VALUE], /* Copy of Accepts-Encoding value */ | |
817 | *start, /* Start of coding value */ | |
818 | *end; /* End of coding value */ | |
819 | double qvalue; /* "qvalue" for coding */ | |
820 | struct lconv *loc = localeconv(); /* Locale data */ | |
821 | static const char * const codings[] = | |
822 | { /* Supported content codings */ | |
823 | "deflate", | |
824 | "gzip", | |
825 | "x-deflate", | |
826 | "x-gzip" | |
827 | }; | |
828 | ||
829 | strlcpy(temp, http->accept_encoding, sizeof(temp)); | |
830 | ||
831 | for (start = temp; *start; start = end) | |
832 | { | |
833 | /* | |
834 | * Find the end of the coding name... | |
835 | */ | |
836 | ||
837 | qvalue = 1.0; | |
838 | end = start; | |
839 | while (*end && *end != ';' && *end != ',' && !isspace(*end & 255)) | |
840 | end ++; | |
841 | ||
842 | if (*end == ';') | |
843 | { | |
844 | /* | |
845 | * Grab the qvalue as needed... | |
846 | */ | |
847 | ||
848 | if (!strncmp(end, ";q=", 3)) | |
849 | qvalue = _cupsStrScand(end + 3, NULL, loc); | |
850 | ||
851 | /* | |
852 | * Skip past all attributes... | |
853 | */ | |
854 | ||
855 | *end++ = '\0'; | |
856 | while (*end && *end != ',' && !isspace(*end & 255)) | |
857 | end ++; | |
858 | } | |
859 | else if (*end) | |
860 | *end++ = '\0'; | |
861 | ||
862 | while (*end && isspace(*end & 255)) | |
863 | end ++; | |
864 | ||
865 | /* | |
866 | * Check value if it matches something we support... | |
867 | */ | |
868 | ||
869 | if (qvalue <= 0.0) | |
870 | continue; | |
871 | ||
872 | for (i = 0; i < (int)(sizeof(codings) / sizeof(codings[0])); i ++) | |
873 | if (!strcmp(start, codings[i])) | |
874 | return (codings[i]); | |
875 | } | |
876 | } | |
877 | #endif /* HAVE_LIBZ */ | |
878 | ||
879 | return (NULL); | |
880 | } | |
881 | ||
882 | ||
ecdc0628 | 883 | /* |
884 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 885 | * |
f3c17241 | 886 | * @since CUPS 1.1.19/OS X 10.3@ |
ecdc0628 | 887 | */ |
888 | ||
889 | const char * /* O - Cookie data or NULL */ | |
890 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
891 | { | |
892 | return (http ? http->cookie : NULL); | |
893 | } | |
894 | ||
895 | ||
5ec1fd3d MS |
896 | /* |
897 | * 'httpGetEncryption()' - Get the current encryption mode of a connection. | |
898 | * | |
899 | * This function returns the encryption mode for the connection. Use the | |
900 | * @link httpIsEncrypted@ function to determine whether a TLS session has | |
901 | * been established. | |
902 | * | |
903 | * @since CUPS 2.0@ | |
904 | */ | |
905 | ||
906 | http_encryption_t /* O - Current encryption mode */ | |
907 | httpGetEncryption(http_t *http) /* I - HTTP connection */ | |
908 | { | |
909 | return (http ? http->encryption : HTTP_ENCRYPTION_IF_REQUESTED); | |
910 | } | |
911 | ||
912 | ||
a469f8a5 MS |
913 | /* |
914 | * 'httpGetExpect()' - Get the value of the Expect header, if any. | |
915 | * | |
916 | * Returns @code HTTP_STATUS_NONE@ if there is no Expect header, otherwise | |
917 | * returns the expected HTTP status code, typically @code HTTP_STATUS_CONTINUE@. | |
918 | * | |
9c0e8e5d | 919 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
920 | */ |
921 | ||
922 | http_status_t /* O - Expect: status, if any */ | |
2c85b752 | 923 | httpGetExpect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
924 | { |
925 | if (!http) | |
926 | return (HTTP_STATUS_ERROR); | |
927 | else | |
928 | return (http->expect); | |
929 | } | |
930 | ||
931 | ||
ecdc0628 | 932 | /* |
933 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
934 | * | |
f3c17241 | 935 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 936 | */ |
937 | ||
938 | int /* O - File descriptor or -1 if none */ | |
e6b1a6a9 | 939 | httpGetFd(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 940 | { |
941 | return (http ? http->fd : -1); | |
942 | } | |
943 | ||
944 | ||
945 | /* | |
946 | * 'httpGetField()' - Get a field value from a request/response. | |
947 | */ | |
948 | ||
949 | const char * /* O - Field value */ | |
e6b1a6a9 | 950 | httpGetField(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 951 | http_field_t field) /* I - Field to get */ |
952 | { | |
953 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
954 | return (NULL); | |
a469f8a5 MS |
955 | |
956 | switch (field) | |
f7deaa1a | 957 | { |
a469f8a5 MS |
958 | case HTTP_FIELD_ACCEPT_ENCODING : |
959 | return (http->accept_encoding); | |
f7deaa1a | 960 | |
a469f8a5 MS |
961 | case HTTP_FIELD_ALLOW : |
962 | return (http->allow); | |
963 | ||
964 | case HTTP_FIELD_SERVER : | |
965 | return (http->server); | |
966 | ||
967 | case HTTP_FIELD_AUTHORIZATION : | |
968 | if (http->field_authorization) | |
969 | { | |
970 | /* | |
971 | * Special case for WWW-Authenticate: as its contents can be | |
972 | * longer than HTTP_MAX_VALUE... | |
973 | */ | |
974 | ||
975 | return (http->field_authorization); | |
976 | } | |
977 | ||
978 | default : | |
979 | return (http->fields[field]); | |
f7deaa1a | 980 | } |
ecdc0628 | 981 | } |
982 | ||
983 | ||
e6b1a6a9 MS |
984 | /* |
985 | * 'httpGetKeepAlive()' - Get the current Keep-Alive state of the connection. | |
986 | * | |
987 | * @since CUPS 2.0@ | |
988 | */ | |
989 | ||
990 | http_keepalive_t /* O - Keep-Alive state */ | |
991 | httpGetKeepAlive(http_t *http) /* I - HTTP connection */ | |
992 | { | |
993 | return (http ? http->keep_alive : HTTP_KEEPALIVE_OFF); | |
994 | } | |
995 | ||
996 | ||
ecdc0628 | 997 | /* |
998 | * 'httpGetLength()' - Get the amount of data remaining from the | |
999 | * content-length or transfer-encoding fields. | |
1000 | * | |
1001 | * This function is deprecated and will not return lengths larger than | |
1002 | * 2^31 - 1; use httpGetLength2() instead. | |
1003 | * | |
1004 | * @deprecated@ | |
1005 | */ | |
1006 | ||
1007 | int /* O - Content length */ | |
e6b1a6a9 | 1008 | httpGetLength(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1009 | { |
1010 | /* | |
1011 | * Get the read content length and return the 32-bit value. | |
1012 | */ | |
1013 | ||
1014 | if (http) | |
1015 | { | |
1016 | httpGetLength2(http); | |
1017 | ||
1018 | return (http->_data_remaining); | |
1019 | } | |
1020 | else | |
1021 | return (-1); | |
1022 | } | |
1023 | ||
1024 | ||
1025 | /* | |
1026 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1027 | * content-length or transfer-encoding fields. | |
1028 | * | |
1029 | * This function returns the complete content length, even for | |
1030 | * content larger than 2^31 - 1. | |
1031 | * | |
f3c17241 | 1032 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 1033 | */ |
1034 | ||
1035 | off_t /* O - Content length */ | |
e6b1a6a9 | 1036 | httpGetLength2(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1037 | { |
a469f8a5 MS |
1038 | off_t remaining; /* Remaining length */ |
1039 | ||
1040 | ||
f11a948a | 1041 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
48bd1142 | 1042 | httpStateString(http->state))); |
ecdc0628 | 1043 | |
1044 | if (!http) | |
1045 | return (-1); | |
1046 | ||
88f9aafc | 1047 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1048 | { |
e07d4801 | 1049 | DEBUG_puts("4httpGetLength2: chunked request!"); |
a469f8a5 | 1050 | remaining = 0; |
ecdc0628 | 1051 | } |
1052 | else | |
1053 | { | |
ecdc0628 | 1054 | /* |
1055 | * The following is a hack for HTTP servers that don't send a | |
a469f8a5 | 1056 | * Content-Length or Transfer-Encoding field... |
ecdc0628 | 1057 | * |
a469f8a5 | 1058 | * If there is no Content-Length then the connection must close |
ecdc0628 | 1059 | * after the transfer is complete... |
1060 | */ | |
1061 | ||
b86bc4cf | 1062 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1063 | { | |
1064 | /* | |
a469f8a5 MS |
1065 | * Default content length is 0 for errors and certain types of operations, |
1066 | * and 2^31-1 for other successful requests... | |
b86bc4cf | 1067 | */ |
1068 | ||
cb7f98ee | 1069 | if (http->status >= HTTP_STATUS_MULTIPLE_CHOICES || |
a469f8a5 MS |
1070 | http->state == HTTP_STATE_OPTIONS || |
1071 | (http->state == HTTP_STATE_GET && http->mode == _HTTP_MODE_SERVER) || | |
1072 | http->state == HTTP_STATE_HEAD || | |
1073 | (http->state == HTTP_STATE_PUT && http->mode == _HTTP_MODE_CLIENT) || | |
1074 | http->state == HTTP_STATE_DELETE || | |
1075 | http->state == HTTP_STATE_TRACE || | |
1076 | http->state == HTTP_STATE_CONNECT) | |
1077 | remaining = 0; | |
b86bc4cf | 1078 | else |
a469f8a5 | 1079 | remaining = 2147483647; |
b86bc4cf | 1080 | } |
a469f8a5 MS |
1081 | else if ((remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], |
1082 | NULL, 10)) < 0) | |
1083 | remaining = -1; | |
ecdc0628 | 1084 | |
e07d4801 | 1085 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
a469f8a5 | 1086 | CUPS_LLCAST remaining)); |
ecdc0628 | 1087 | } |
1088 | ||
a469f8a5 | 1089 | return (remaining); |
ecdc0628 | 1090 | } |
1091 | ||
1092 | ||
d21dc0ed MS |
1093 | /* |
1094 | * 'httpGetPending()' - Get the number of bytes that are buffered for writing. | |
1095 | * | |
1096 | * @since CUPS 2.0@ | |
1097 | */ | |
1098 | ||
1099 | size_t /* O - Number of bytes buffered */ | |
1100 | httpGetPending(http_t *http) /* I - HTTP connection */ | |
1101 | { | |
1102 | return (http ? http->wused : 0); | |
1103 | } | |
1104 | ||
1105 | ||
e6b1a6a9 MS |
1106 | /* |
1107 | * 'httpGetReady()' - Get the number of bytes that can be read without blocking. | |
1108 | * | |
1109 | * @since CUPS 2.0@ | |
1110 | */ | |
1111 | ||
1112 | size_t /* O - Number of bytes available */ | |
1113 | httpGetReady(http_t *http) /* I - HTTP connection */ | |
1114 | { | |
1115 | if (!http) | |
1116 | return (0); | |
1117 | else if (http->used > 0) | |
1118 | return (http->used); | |
1119 | #ifdef HAVE_SSL | |
1120 | else if (http->tls) | |
724e1819 | 1121 | return (http_tls_pending(http)); |
e6b1a6a9 MS |
1122 | #endif /* HAVE_SSL */ |
1123 | ||
1124 | return (0); | |
1125 | } | |
1126 | ||
1127 | ||
5ec1fd3d MS |
1128 | /* |
1129 | * 'httpGetRemaining()' - Get the number of remaining bytes in the message | |
1130 | * body or current chunk. | |
1131 | * | |
1132 | * The @link httpIsChunked@ function can be used to determine whether the | |
1133 | * message body is chunked or fixed-length. | |
1134 | * | |
1135 | * @since CUPS 2.0@ | |
1136 | */ | |
1137 | ||
1138 | size_t /* O - Remaining bytes */ | |
1139 | httpGetRemaining(http_t *http) /* I - HTTP connection */ | |
1140 | { | |
1141 | return (http ? http->data_remaining : 0); | |
1142 | } | |
1143 | ||
1144 | ||
ef416fc2 | 1145 | /* |
1146 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1147 | */ | |
1148 | ||
1149 | char * /* O - Line or NULL */ | |
1150 | httpGets(char *line, /* I - Line to read into */ | |
1151 | int length, /* I - Max length of buffer */ | |
e6b1a6a9 | 1152 | http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1153 | { |
1154 | char *lineptr, /* Pointer into line */ | |
1155 | *lineend, /* End of line */ | |
1156 | *bufptr, /* Pointer into input buffer */ | |
1157 | *bufend; /* Pointer to end of buffer */ | |
1158 | int bytes, /* Number of bytes read */ | |
1159 | eol; /* End-of-line? */ | |
1160 | ||
1161 | ||
e07d4801 | 1162 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1163 | |
0fa6c7fa | 1164 | if (!http || !line || length <= 1) |
ef416fc2 | 1165 | return (NULL); |
1166 | ||
1167 | /* | |
1168 | * Read a line from the buffer... | |
1169 | */ | |
f11a948a MS |
1170 | |
1171 | http->error = 0; | |
1172 | lineptr = line; | |
1173 | lineend = line + length - 1; | |
1174 | eol = 0; | |
ef416fc2 | 1175 | |
1176 | while (lineptr < lineend) | |
1177 | { | |
1178 | /* | |
1179 | * Pre-load the buffer as needed... | |
1180 | */ | |
1181 | ||
1182 | #ifdef WIN32 | |
1183 | WSASetLastError(0); | |
1184 | #else | |
1185 | errno = 0; | |
1186 | #endif /* WIN32 */ | |
1187 | ||
1188 | while (http->used == 0) | |
1189 | { | |
1190 | /* | |
1191 | * No newline; see if there is more data to be read... | |
1192 | */ | |
1193 | ||
85dda01c | 1194 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1195 | { |
f228370c MS |
1196 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1197 | continue; | |
1198 | ||
e07d4801 | 1199 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1200 | #ifdef WIN32 |
1201 | http->error = WSAETIMEDOUT; | |
1202 | #else | |
89d46774 | 1203 | http->error = ETIMEDOUT; |
b86bc4cf | 1204 | #endif /* WIN32 */ |
ef416fc2 | 1205 | return (NULL); |
89d46774 | 1206 | } |
ef416fc2 | 1207 | |
0fa6c7fa MS |
1208 | bytes = http_read(http, http->buffer + http->used, |
1209 | HTTP_MAX_BUFFER - http->used); | |
ef416fc2 | 1210 | |
0fa6c7fa | 1211 | DEBUG_printf(("4httpGets: read %d bytes.", bytes)); |
12f89d24 | 1212 | |
ef416fc2 | 1213 | if (bytes < 0) |
1214 | { | |
1215 | /* | |
1216 | * Nope, can't get a line this time... | |
1217 | */ | |
1218 | ||
1219 | #ifdef WIN32 | |
cc754834 MS |
1220 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1221 | ||
10d09e33 | 1222 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1223 | continue; |
10d09e33 MS |
1224 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1225 | { | |
1226 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1227 | continue; | |
1228 | ||
1229 | http->error = WSAGetLastError(); | |
1230 | } | |
cc754834 | 1231 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1232 | { |
1233 | http->error = WSAGetLastError(); | |
1234 | continue; | |
1235 | } | |
1236 | ||
ef416fc2 | 1237 | #else |
e07d4801 | 1238 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1239 | |
10d09e33 | 1240 | if (errno == EINTR) |
ef416fc2 | 1241 | continue; |
10d09e33 MS |
1242 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1243 | { | |
1244 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1245 | continue; | |
1246 | else if (!http->timeout_cb && errno == EAGAIN) | |
1247 | continue; | |
1248 | ||
1249 | http->error = errno; | |
1250 | } | |
ef416fc2 | 1251 | else if (errno != http->error) |
1252 | { | |
1253 | http->error = errno; | |
1254 | continue; | |
1255 | } | |
1256 | #endif /* WIN32 */ | |
1257 | ||
1258 | return (NULL); | |
1259 | } | |
1260 | else if (bytes == 0) | |
1261 | { | |
1262 | http->error = EPIPE; | |
1263 | ||
1264 | return (NULL); | |
1265 | } | |
1266 | ||
1267 | /* | |
1268 | * Yup, update the amount used... | |
1269 | */ | |
1270 | ||
1271 | http->used += bytes; | |
1272 | } | |
1273 | ||
1274 | /* | |
1275 | * Now copy as much of the current line as possible... | |
1276 | */ | |
1277 | ||
1278 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1279 | lineptr < lineend && bufptr < bufend;) | |
1280 | { | |
1281 | if (*bufptr == 0x0a) | |
1282 | { | |
1283 | eol = 1; | |
1284 | bufptr ++; | |
1285 | break; | |
1286 | } | |
1287 | else if (*bufptr == 0x0d) | |
1288 | bufptr ++; | |
1289 | else | |
1290 | *lineptr++ = *bufptr++; | |
1291 | } | |
1292 | ||
b86bc4cf | 1293 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1294 | if (http->used > 0) |
1295 | memmove(http->buffer, bufptr, http->used); | |
1296 | ||
1297 | if (eol) | |
1298 | { | |
1299 | /* | |
1300 | * End of line... | |
1301 | */ | |
1302 | ||
1303 | http->activity = time(NULL); | |
1304 | ||
1305 | *lineptr = '\0'; | |
ef55b745 | 1306 | |
e07d4801 | 1307 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1308 | |
1309 | return (line); | |
1310 | } | |
1311 | } | |
1312 | ||
e07d4801 | 1313 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1314 | |
1315 | return (NULL); | |
1316 | } | |
1317 | ||
1318 | ||
a2326b5b MS |
1319 | /* |
1320 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1321 | */ | |
1322 | ||
1323 | http_state_t /* O - HTTP state */ | |
e6b1a6a9 | 1324 | httpGetState(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1325 | { |
a469f8a5 | 1326 | return (http ? http->state : HTTP_STATE_ERROR); |
a2326b5b MS |
1327 | } |
1328 | ||
1329 | ||
1330 | /* | |
1331 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1332 | * | |
f3c17241 | 1333 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1334 | */ |
1335 | ||
1336 | http_status_t /* O - HTTP status */ | |
e6b1a6a9 | 1337 | httpGetStatus(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1338 | { |
cb7f98ee | 1339 | return (http ? http->status : HTTP_STATUS_ERROR); |
a2326b5b MS |
1340 | } |
1341 | ||
1342 | ||
1343 | /* | |
1344 | * 'httpGetSubField()' - Get a sub-field value. | |
1345 | * | |
1346 | * @deprecated@ | |
1347 | */ | |
1348 | ||
1349 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1350 | httpGetSubField(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1351 | http_field_t field, /* I - Field index */ |
1352 | const char *name, /* I - Name of sub-field */ | |
1353 | char *value) /* O - Value string */ | |
1354 | { | |
1355 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1356 | } | |
1357 | ||
1358 | ||
1359 | /* | |
1360 | * 'httpGetSubField2()' - Get a sub-field value. | |
1361 | * | |
f3c17241 | 1362 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1363 | */ |
1364 | ||
1365 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1366 | httpGetSubField2(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1367 | http_field_t field, /* I - Field index */ |
1368 | const char *name, /* I - Name of sub-field */ | |
1369 | char *value, /* O - Value string */ | |
1370 | int valuelen) /* I - Size of value buffer */ | |
1371 | { | |
1372 | const char *fptr; /* Pointer into field */ | |
1373 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1374 | *ptr, /* Pointer into string buffer */ | |
1375 | *end; /* End of value buffer */ | |
1376 | ||
1377 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " | |
1378 | "valuelen=%d)", http, field, name, value, valuelen)); | |
1379 | ||
1380 | if (!http || !name || !value || valuelen < 2 || | |
1381 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1382 | return (NULL); | |
1383 | ||
1384 | end = value + valuelen - 1; | |
1385 | ||
1386 | for (fptr = http->fields[field]; *fptr;) | |
1387 | { | |
1388 | /* | |
1389 | * Skip leading whitespace... | |
1390 | */ | |
1391 | ||
1392 | while (_cups_isspace(*fptr)) | |
1393 | fptr ++; | |
1394 | ||
1395 | if (*fptr == ',') | |
1396 | { | |
1397 | fptr ++; | |
1398 | continue; | |
1399 | } | |
1400 | ||
1401 | /* | |
1402 | * Get the sub-field name... | |
1403 | */ | |
1404 | ||
1405 | for (ptr = temp; | |
1406 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1407 | ptr < (temp + sizeof(temp) - 1); | |
1408 | *ptr++ = *fptr++); | |
1409 | ||
1410 | *ptr = '\0'; | |
1411 | ||
1412 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1413 | ||
1414 | /* | |
1415 | * Skip trailing chars up to the '='... | |
1416 | */ | |
1417 | ||
1418 | while (_cups_isspace(*fptr)) | |
1419 | fptr ++; | |
1420 | ||
1421 | if (!*fptr) | |
1422 | break; | |
1423 | ||
1424 | if (*fptr != '=') | |
1425 | continue; | |
1426 | ||
1427 | /* | |
1428 | * Skip = and leading whitespace... | |
1429 | */ | |
1430 | ||
1431 | fptr ++; | |
1432 | ||
1433 | while (_cups_isspace(*fptr)) | |
1434 | fptr ++; | |
1435 | ||
1436 | if (*fptr == '\"') | |
1437 | { | |
1438 | /* | |
1439 | * Read quoted string... | |
1440 | */ | |
1441 | ||
1442 | for (ptr = value, fptr ++; | |
1443 | *fptr && *fptr != '\"' && ptr < end; | |
1444 | *ptr++ = *fptr++); | |
1445 | ||
1446 | *ptr = '\0'; | |
1447 | ||
1448 | while (*fptr && *fptr != '\"') | |
1449 | fptr ++; | |
1450 | ||
1451 | if (*fptr) | |
1452 | fptr ++; | |
1453 | } | |
1454 | else | |
1455 | { | |
1456 | /* | |
1457 | * Read unquoted string... | |
1458 | */ | |
1459 | ||
1460 | for (ptr = value; | |
1461 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1462 | *ptr++ = *fptr++); | |
1463 | ||
1464 | *ptr = '\0'; | |
1465 | ||
1466 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1467 | fptr ++; | |
1468 | } | |
1469 | ||
1470 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1471 | ||
1472 | /* | |
1473 | * See if this is the one... | |
1474 | */ | |
1475 | ||
1476 | if (!strcmp(name, temp)) | |
1477 | { | |
1478 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1479 | return (value); | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | value[0] = '\0'; | |
1484 | ||
1485 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1486 | ||
1487 | return (NULL); | |
1488 | } | |
1489 | ||
1490 | ||
1491 | /* | |
1492 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1493 | */ | |
1494 | ||
1495 | http_version_t /* O - Version number */ | |
e6b1a6a9 | 1496 | httpGetVersion(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1497 | { |
a469f8a5 | 1498 | return (http ? http->version : HTTP_VERSION_1_0); |
a2326b5b MS |
1499 | } |
1500 | ||
1501 | ||
ef416fc2 | 1502 | /* |
1503 | * 'httpHead()' - Send a HEAD request to the server. | |
1504 | */ | |
1505 | ||
1506 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1507 | httpHead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1508 | const char *uri) /* I - URI for head */ |
1509 | { | |
e07d4801 | 1510 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1511 | return (http_send(http, HTTP_STATE_HEAD, uri)); |
ef416fc2 | 1512 | } |
1513 | ||
1514 | ||
1515 | /* | |
1516 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1517 | * default HTTP proxy (if any). | |
1518 | */ | |
1519 | ||
1520 | void | |
1521 | httpInitialize(void) | |
1522 | { | |
6d2f911b MS |
1523 | static int initialized = 0; /* Have we been called before? */ |
1524 | #ifdef WIN32 | |
1525 | WSADATA winsockdata; /* WinSock data */ | |
1526 | #endif /* WIN32 */ | |
ef416fc2 | 1527 | |
ef416fc2 | 1528 | |
6d2f911b MS |
1529 | _cupsGlobalLock(); |
1530 | if (initialized) | |
1531 | { | |
1532 | _cupsGlobalUnlock(); | |
1533 | return; | |
1534 | } | |
1535 | ||
1536 | #ifdef WIN32 | |
c7017ecc | 1537 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1538 | |
fa73b229 | 1539 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1540 | /* |
1541 | * Ignore SIGPIPE signals... | |
1542 | */ | |
1543 | ||
fa73b229 | 1544 | # ifdef HAVE_SIGSET |
1545 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1546 | |
fa73b229 | 1547 | # elif defined(HAVE_SIGACTION) |
1548 | struct sigaction action; /* POSIX sigaction data */ | |
1549 | ||
1550 | ||
ef416fc2 | 1551 | memset(&action, 0, sizeof(action)); |
1552 | action.sa_handler = SIG_IGN; | |
1553 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1554 | |
fa73b229 | 1555 | # else |
ef416fc2 | 1556 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1557 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1558 | #endif /* WIN32 */ |
1559 | ||
2c85b752 MS |
1560 | # ifdef HAVE_SSL |
1561 | http_tls_initialize(); | |
1562 | # endif /* HAVE_SSL */ | |
6d2f911b MS |
1563 | |
1564 | initialized = 1; | |
1565 | _cupsGlobalUnlock(); | |
ef416fc2 | 1566 | } |
1567 | ||
1568 | ||
5ec1fd3d MS |
1569 | /* |
1570 | * 'httpIsChunked()' - Report whether a message body is chunked. | |
1571 | * | |
1572 | * This function returns non-zero if the message body is composed of | |
1573 | * variable-length chunks. | |
1574 | * | |
1575 | * @since CUPS 2.0@ | |
1576 | */ | |
1577 | ||
1578 | int /* O - 1 if chunked, 0 if not */ | |
1579 | httpIsChunked(http_t *http) /* I - HTTP connection */ | |
1580 | { | |
1581 | return (http ? http->data_encoding == HTTP_ENCODING_CHUNKED : 0); | |
1582 | } | |
1583 | ||
1584 | ||
1585 | /* | |
1586 | * 'httpIsEncrypted()' - Report whether a connection is encrypted. | |
1587 | * | |
1588 | * This function returns non-zero if the connection is currently encrypted. | |
1589 | * | |
1590 | * @since CUPS 2.0@ | |
1591 | */ | |
1592 | ||
1593 | int /* O - 1 if encrypted, 0 if not */ | |
1594 | httpIsEncrypted(http_t *http) /* I - HTTP connection */ | |
1595 | { | |
1596 | return (http ? http->tls != NULL : 0); | |
1597 | } | |
1598 | ||
1599 | ||
ef416fc2 | 1600 | /* |
1601 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1602 | */ | |
1603 | ||
1604 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1605 | httpOptions(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1606 | const char *uri) /* I - URI for options */ |
1607 | { | |
cb7f98ee | 1608 | return (http_send(http, HTTP_STATE_OPTIONS, uri)); |
ef416fc2 | 1609 | } |
1610 | ||
1611 | ||
6d2f911b | 1612 | /* |
a469f8a5 | 1613 | * 'httpPeek()' - Peek at data from a HTTP connection. |
6d2f911b MS |
1614 | * |
1615 | * This function copies available data from the given HTTP connection, reading | |
1616 | * a buffer as needed. The data is still available for reading using | |
1617 | * @link httpRead@ or @link httpRead2@. | |
1618 | * | |
1619 | * For non-blocking connections the usual timeouts apply. | |
a469f8a5 | 1620 | * |
9c0e8e5d | 1621 | * @since CUPS 1.7/OS X 10.9@ |
6d2f911b MS |
1622 | */ |
1623 | ||
1624 | ssize_t /* O - Number of bytes copied */ | |
e6b1a6a9 | 1625 | httpPeek(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
1626 | char *buffer, /* I - Buffer for data */ |
1627 | size_t length) /* I - Maximum number of bytes */ | |
6d2f911b MS |
1628 | { |
1629 | ssize_t bytes; /* Bytes read */ | |
1630 | char len[32]; /* Length string */ | |
1631 | ||
1632 | ||
a469f8a5 | 1633 | DEBUG_printf(("httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
6d2f911b MS |
1634 | http, buffer, CUPS_LLCAST length)); |
1635 | ||
1636 | if (http == NULL || buffer == NULL) | |
1637 | return (-1); | |
1638 | ||
1639 | http->activity = time(NULL); | |
1640 | http->error = 0; | |
1641 | ||
1642 | if (length <= 0) | |
1643 | return (0); | |
1644 | ||
a469f8a5 | 1645 | if (http->data_encoding == HTTP_ENCODING_CHUNKED && |
6d2f911b MS |
1646 | http->data_remaining <= 0) |
1647 | { | |
a469f8a5 | 1648 | DEBUG_puts("2httpPeek: Getting chunk length..."); |
6d2f911b MS |
1649 | |
1650 | if (httpGets(len, sizeof(len), http) == NULL) | |
1651 | { | |
a469f8a5 | 1652 | DEBUG_puts("1httpPeek: Could not get length!"); |
6d2f911b MS |
1653 | return (0); |
1654 | } | |
1655 | ||
db8b865d MS |
1656 | if (!len[0]) |
1657 | { | |
1658 | DEBUG_puts("1httpPeek: Blank chunk length, trying again..."); | |
1659 | if (!httpGets(len, sizeof(len), http)) | |
1660 | { | |
1661 | DEBUG_puts("1httpPeek: Could not get chunk length."); | |
1662 | return (0); | |
1663 | } | |
1664 | } | |
1665 | ||
6d2f911b | 1666 | http->data_remaining = strtoll(len, NULL, 16); |
db8b865d | 1667 | |
6d2f911b MS |
1668 | if (http->data_remaining < 0) |
1669 | { | |
a469f8a5 | 1670 | DEBUG_puts("1httpPeek: Negative chunk length!"); |
6d2f911b MS |
1671 | return (0); |
1672 | } | |
1673 | } | |
1674 | ||
a469f8a5 | 1675 | DEBUG_printf(("2httpPeek: data_remaining=" CUPS_LLFMT, |
6d2f911b MS |
1676 | CUPS_LLCAST http->data_remaining)); |
1677 | ||
0fa6c7fa | 1678 | if (http->data_remaining <= 0 && http->data_encoding != HTTP_ENCODING_FIELDS) |
6d2f911b MS |
1679 | { |
1680 | /* | |
1681 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1682 | * data, go idle... | |
1683 | */ | |
1684 | ||
c41769ff MS |
1685 | #ifdef HAVE_LIBZ |
1686 | if (http->coding) | |
1687 | http_content_coding_finish(http); | |
1688 | #endif /* HAVE_LIBZ */ | |
1689 | ||
0fa6c7fa MS |
1690 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
1691 | httpGets(len, sizeof(len), http); | |
1692 | ||
a469f8a5 | 1693 | if (http->state == HTTP_STATE_POST_RECV) |
6d2f911b MS |
1694 | http->state ++; |
1695 | else | |
cb7f98ee | 1696 | http->state = HTTP_STATE_STATUS; |
a469f8a5 MS |
1697 | |
1698 | DEBUG_printf(("1httpPeek: 0-length chunk, set state to %s.", | |
48bd1142 | 1699 | httpStateString(http->state))); |
6d2f911b MS |
1700 | |
1701 | /* | |
1702 | * Prevent future reads for this request... | |
1703 | */ | |
1704 | ||
a469f8a5 | 1705 | http->data_encoding = HTTP_ENCODING_FIELDS; |
6d2f911b MS |
1706 | |
1707 | return (0); | |
1708 | } | |
0fa6c7fa | 1709 | else if (length > (size_t)http->data_remaining) |
6d2f911b MS |
1710 | length = (size_t)http->data_remaining; |
1711 | ||
0fa6c7fa MS |
1712 | #ifdef HAVE_LIBZ |
1713 | if (http->used == 0 && | |
1714 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0)) | |
1715 | #else | |
6d2f911b | 1716 | if (http->used == 0) |
0fa6c7fa | 1717 | #endif /* HAVE_LIBZ */ |
6d2f911b MS |
1718 | { |
1719 | /* | |
1720 | * Buffer small reads for better performance... | |
1721 | */ | |
1722 | ||
3e7fe0ca MS |
1723 | ssize_t buflen; /* Length of read for buffer */ |
1724 | ||
f228370c MS |
1725 | if (!http->blocking) |
1726 | { | |
85dda01c | 1727 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1728 | { |
1729 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1730 | continue; | |
1731 | ||
1732 | return (0); | |
1733 | } | |
1734 | } | |
6d2f911b MS |
1735 | |
1736 | if (http->data_remaining > sizeof(http->buffer)) | |
3e7fe0ca | 1737 | buflen = sizeof(http->buffer); |
6d2f911b | 1738 | else |
3e7fe0ca MS |
1739 | buflen = http->data_remaining; |
1740 | ||
a469f8a5 | 1741 | DEBUG_printf(("2httpPeek: Reading %d bytes into buffer.", (int)buflen)); |
db8b865d | 1742 | bytes = http_read(http, http->buffer, buflen); |
3e7fe0ca | 1743 | |
a469f8a5 | 1744 | DEBUG_printf(("2httpPeek: Read " CUPS_LLFMT " bytes into buffer.", |
3e7fe0ca | 1745 | CUPS_LLCAST bytes)); |
db8b865d MS |
1746 | if (bytes > 0) |
1747 | { | |
3e7fe0ca | 1748 | #ifdef DEBUG |
db8b865d | 1749 | http_debug_hex("httpPeek", http->buffer, (int)bytes); |
3e7fe0ca MS |
1750 | #endif /* DEBUG */ |
1751 | ||
db8b865d MS |
1752 | http->used = bytes; |
1753 | } | |
6d2f911b MS |
1754 | } |
1755 | ||
c1420c87 MS |
1756 | #ifdef HAVE_LIBZ |
1757 | if (http->coding) | |
1758 | { | |
db8b865d | 1759 | # ifdef HAVE_INFLATECOPY |
c1420c87 | 1760 | int zerr; /* Decompressor error */ |
c1420c87 MS |
1761 | z_stream stream; /* Copy of decompressor stream */ |
1762 | ||
0fa6c7fa MS |
1763 | if (http->used > 0 && http->stream.avail_in < HTTP_MAX_BUFFER) |
1764 | { | |
1765 | size_t buflen = buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
1766 | /* Number of bytes to copy */ | |
1767 | ||
1768 | if (http->stream.avail_in > 0 && | |
1769 | http->stream.next_in > http->dbuffer) | |
1770 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
1771 | ||
1772 | http->stream.next_in = http->dbuffer; | |
1773 | ||
1774 | if (buflen > http->data_remaining) | |
1775 | buflen = http->data_remaining; | |
1776 | ||
1777 | if (buflen > http->used) | |
1778 | buflen = http->used; | |
1779 | ||
1780 | DEBUG_printf(("1httpPeek: Copying %d more bytes of data into " | |
1781 | "decompression buffer.", (int)buflen)); | |
1782 | ||
1783 | memcpy(http->dbuffer + http->stream.avail_in, http->buffer, buflen); | |
1784 | http->stream.avail_in += buflen; | |
1785 | http->used -= buflen; | |
1786 | http->data_remaining -= buflen; | |
1787 | ||
1788 | if (http->used > 0) | |
1789 | memmove(http->buffer, http->buffer + buflen, http->used); | |
1790 | } | |
c1420c87 MS |
1791 | |
1792 | DEBUG_printf(("2httpPeek: length=%d, avail_in=%d", (int)length, | |
0fa6c7fa | 1793 | (int)http->stream.avail_in)); |
c1420c87 MS |
1794 | |
1795 | if (inflateCopy(&stream, &(http->stream)) != Z_OK) | |
1796 | { | |
1797 | DEBUG_puts("2httpPeek: Unable to copy decompressor stream."); | |
1798 | http->error = ENOMEM; | |
1799 | return (-1); | |
1800 | } | |
1801 | ||
c1420c87 MS |
1802 | stream.next_out = (Bytef *)buffer; |
1803 | stream.avail_out = length; | |
1804 | ||
1805 | zerr = inflate(&stream, Z_SYNC_FLUSH); | |
1806 | inflateEnd(&stream); | |
1807 | ||
1808 | if (zerr < Z_OK) | |
1809 | { | |
1810 | DEBUG_printf(("2httpPeek: zerr=%d", zerr)); | |
0fa6c7fa MS |
1811 | #ifdef DEBUG |
1812 | http_debug_hex("2httpPeek", (char *)http->dbuffer, | |
1813 | http->stream.avail_in); | |
1814 | #endif /* DEBUG */ | |
1815 | ||
c1420c87 MS |
1816 | http->error = EIO; |
1817 | return (-1); | |
1818 | } | |
1819 | ||
1820 | bytes = length - http->stream.avail_out; | |
db8b865d MS |
1821 | |
1822 | # else | |
1823 | DEBUG_puts("2httpPeek: No inflateCopy on this platform, httpPeek does not " | |
1824 | "work with compressed streams."); | |
1825 | return (-1); | |
1826 | # endif /* HAVE_INFLATECOPY */ | |
c1420c87 MS |
1827 | } |
1828 | else | |
1829 | #endif /* HAVE_LIBZ */ | |
6d2f911b MS |
1830 | if (http->used > 0) |
1831 | { | |
1832 | if (length > (size_t)http->used) | |
1833 | length = (size_t)http->used; | |
1834 | ||
1835 | bytes = (ssize_t)length; | |
1836 | ||
a469f8a5 | 1837 | DEBUG_printf(("2httpPeek: grabbing %d bytes from input buffer...", |
6d2f911b MS |
1838 | (int)bytes)); |
1839 | ||
1840 | memcpy(buffer, http->buffer, length); | |
1841 | } | |
1842 | else | |
1843 | bytes = 0; | |
1844 | ||
1845 | if (bytes < 0) | |
1846 | { | |
1847 | #ifdef WIN32 | |
cc754834 MS |
1848 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1849 | bytes = 0; | |
1850 | else | |
1851 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1852 | #else |
1853 | if (errno == EINTR || errno == EAGAIN) | |
1854 | bytes = 0; | |
1855 | else | |
1856 | http->error = errno; | |
1857 | #endif /* WIN32 */ | |
1858 | } | |
1859 | else if (bytes == 0) | |
1860 | { | |
1861 | http->error = EPIPE; | |
1862 | return (0); | |
1863 | } | |
1864 | ||
6d2f911b MS |
1865 | return (bytes); |
1866 | } | |
1867 | ||
1868 | ||
ef416fc2 | 1869 | /* |
1870 | * 'httpPost()' - Send a POST request to the server. | |
1871 | */ | |
1872 | ||
1873 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1874 | httpPost(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1875 | const char *uri) /* I - URI for post */ |
1876 | { | |
cb7f98ee | 1877 | return (http_send(http, HTTP_STATE_POST, uri)); |
ef416fc2 | 1878 | } |
1879 | ||
1880 | ||
1881 | /* | |
1882 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1883 | * |
1884 | * @private@ | |
ef416fc2 | 1885 | */ |
1886 | ||
1887 | int /* O - Number of bytes written */ | |
e6b1a6a9 | 1888 | httpPrintf(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1889 | const char *format, /* I - printf-style format string */ |
1890 | ...) /* I - Additional args as needed */ | |
1891 | { | |
1892 | int bytes; /* Number of bytes to write */ | |
1893 | char buf[16384]; /* Buffer for formatted string */ | |
1894 | va_list ap; /* Variable argument pointer */ | |
1895 | ||
1896 | ||
e07d4801 | 1897 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1898 | |
1899 | va_start(ap, format); | |
1900 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1901 | va_end(ap); | |
1902 | ||
a469f8a5 | 1903 | DEBUG_printf(("3httpPrintf: (%d bytes) %s", bytes, buf)); |
ef416fc2 | 1904 | |
a469f8a5 | 1905 | if (http->data_encoding == HTTP_ENCODING_FIELDS) |
d09495fa | 1906 | return (httpWrite2(http, buf, bytes)); |
1907 | else | |
ef416fc2 | 1908 | { |
d09495fa | 1909 | if (http->wused) |
1910 | { | |
e07d4801 | 1911 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1912 | |
d09495fa | 1913 | if (httpFlushWrite(http) < 0) |
1914 | return (-1); | |
1915 | } | |
ef416fc2 | 1916 | |
d09495fa | 1917 | return (http_write(http, buf, bytes)); |
1918 | } | |
ef416fc2 | 1919 | } |
1920 | ||
1921 | ||
1922 | /* | |
1923 | * 'httpPut()' - Send a PUT request to the server. | |
1924 | */ | |
1925 | ||
1926 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1927 | httpPut(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1928 | const char *uri) /* I - URI to put */ |
1929 | { | |
e07d4801 | 1930 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1931 | return (http_send(http, HTTP_STATE_PUT, uri)); |
ef416fc2 | 1932 | } |
1933 | ||
1934 | ||
1935 | /* | |
1936 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1937 | * |
1938 | * This function is deprecated. Use the httpRead2() function which can | |
1939 | * read more than 2GB of data. | |
1940 | * | |
1941 | * @deprecated@ | |
ef416fc2 | 1942 | */ |
1943 | ||
1944 | int /* O - Number of bytes read */ | |
e6b1a6a9 | 1945 | httpRead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1946 | char *buffer, /* I - Buffer for data */ |
1947 | int length) /* I - Maximum number of bytes */ | |
1948 | { | |
a4d04587 | 1949 | return ((int)httpRead2(http, buffer, length)); |
1950 | } | |
1951 | ||
1952 | ||
1953 | /* | |
1954 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1955 | * |
f3c17241 | 1956 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 1957 | */ |
1958 | ||
1959 | ssize_t /* O - Number of bytes read */ | |
e6b1a6a9 | 1960 | httpRead2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 1961 | char *buffer, /* I - Buffer for data */ |
1962 | size_t length) /* I - Maximum number of bytes */ | |
1963 | { | |
1964 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1965 | |
1966 | ||
db8b865d | 1967 | #ifdef HAVE_LIBZ |
a469f8a5 | 1968 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT |
0fa6c7fa | 1969 | ") coding=%d data_encoding=%d data_remaining=" CUPS_LLFMT, |
db8b865d MS |
1970 | http, buffer, CUPS_LLCAST length, |
1971 | http->coding, | |
0fa6c7fa | 1972 | http->data_encoding, CUPS_LLCAST http->data_remaining)); |
db8b865d MS |
1973 | #else |
1974 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT | |
1975 | ") data_encoding=%d data_remaining=" CUPS_LLFMT, | |
1976 | http, buffer, CUPS_LLCAST length, | |
1977 | http->data_encoding, CUPS_LLCAST http->data_remaining)); | |
1978 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 1979 | |
1980 | if (http == NULL || buffer == NULL) | |
1981 | return (-1); | |
1982 | ||
1983 | http->activity = time(NULL); | |
f11a948a | 1984 | http->error = 0; |
ef416fc2 | 1985 | |
1986 | if (length <= 0) | |
1987 | return (0); | |
1988 | ||
a469f8a5 | 1989 | #ifdef HAVE_LIBZ |
0fa6c7fa | 1990 | if (http->coding) |
ef416fc2 | 1991 | { |
0fa6c7fa | 1992 | do |
f228370c | 1993 | { |
0fa6c7fa | 1994 | if (http->stream.avail_in > 0) |
f228370c | 1995 | { |
0fa6c7fa | 1996 | int zerr; /* Decompressor error */ |
f228370c | 1997 | |
0fa6c7fa MS |
1998 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d", |
1999 | (int)http->stream.avail_in, (int)length)); | |
ef416fc2 | 2000 | |
0fa6c7fa MS |
2001 | http->stream.next_out = (Bytef *)buffer; |
2002 | http->stream.avail_out = length; | |
83e08001 | 2003 | |
0fa6c7fa | 2004 | if ((zerr = inflate(&(http->stream), Z_SYNC_FLUSH)) < Z_OK) |
83e08001 | 2005 | { |
0fa6c7fa | 2006 | DEBUG_printf(("2httpRead2: zerr=%d", zerr)); |
12f89d24 | 2007 | #ifdef DEBUG |
0fa6c7fa MS |
2008 | http_debug_hex("2httpRead2", (char *)http->dbuffer, |
2009 | http->stream.avail_in); | |
12f89d24 | 2010 | #endif /* DEBUG */ |
83e08001 | 2011 | |
0fa6c7fa MS |
2012 | http->error = EIO; |
2013 | return (-1); | |
2014 | } | |
a469f8a5 | 2015 | |
0fa6c7fa | 2016 | bytes = length - http->stream.avail_out; |
a469f8a5 | 2017 | |
0fa6c7fa MS |
2018 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d, bytes=%d", |
2019 | http->stream.avail_in, http->stream.avail_out, | |
2020 | (int)bytes)); | |
2021 | } | |
2022 | else | |
2023 | bytes = 0; | |
a469f8a5 | 2024 | |
0fa6c7fa MS |
2025 | if (bytes == 0) |
2026 | { | |
2027 | ssize_t buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
2028 | /* Additional bytes for buffer */ | |
a469f8a5 | 2029 | |
0fa6c7fa MS |
2030 | if (buflen > 0) |
2031 | { | |
2032 | if (http->stream.avail_in > 0 && | |
2033 | http->stream.next_in > http->dbuffer) | |
2034 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
2035 | ||
2036 | http->stream.next_in = http->dbuffer; | |
2037 | ||
2038 | DEBUG_printf(("1httpRead2: Reading up to %d more bytes of data into " | |
2039 | "decompression buffer.", (int)buflen)); | |
2040 | ||
2041 | if (http->data_remaining > 0) | |
2042 | { | |
2043 | if (buflen > http->data_remaining) | |
2044 | buflen = http->data_remaining; | |
2045 | ||
2046 | bytes = http_read_buffered(http, | |
2047 | (char *)http->dbuffer + | |
2048 | http->stream.avail_in, buflen); | |
2049 | } | |
2050 | else if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2051 | bytes = http_read_chunk(http, | |
2052 | (char *)http->dbuffer + | |
2053 | http->stream.avail_in, buflen); | |
2054 | else | |
2055 | bytes = 0; | |
2056 | ||
2057 | if (bytes < 0) | |
2058 | return (bytes); | |
2059 | else if (bytes == 0) | |
2060 | break; | |
2061 | ||
db8b865d MS |
2062 | DEBUG_printf(("1httpRead2: Adding " CUPS_LLFMT " bytes to " |
2063 | "decompression buffer.", CUPS_LLCAST bytes)); | |
2064 | ||
0fa6c7fa MS |
2065 | http->data_remaining -= bytes; |
2066 | http->stream.avail_in += bytes; | |
db8b865d | 2067 | |
cb7f98ee MS |
2068 | if (http->data_remaining <= 0 && |
2069 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2070 | { | |
2071 | /* | |
2072 | * Read the trailing blank line now... | |
2073 | */ | |
2074 | ||
2075 | char len[32]; /* Length string */ | |
2076 | ||
2077 | httpGets(len, sizeof(len), http); | |
2078 | } | |
2079 | ||
db8b865d | 2080 | bytes = 0; |
0fa6c7fa MS |
2081 | } |
2082 | else | |
2083 | return (0); | |
2084 | } | |
a469f8a5 | 2085 | } |
0fa6c7fa | 2086 | while (bytes == 0); |
a469f8a5 MS |
2087 | } |
2088 | else | |
2089 | #endif /* HAVE_LIBZ */ | |
0fa6c7fa | 2090 | if (http->data_remaining == 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 2091 | { |
0fa6c7fa | 2092 | if ((bytes = http_read_chunk(http, buffer, length)) > 0) |
cb7f98ee | 2093 | { |
0fa6c7fa | 2094 | http->data_remaining -= bytes; |
cb7f98ee MS |
2095 | |
2096 | if (http->data_remaining <= 0) | |
2097 | { | |
2098 | /* | |
2099 | * Read the trailing blank line now... | |
2100 | */ | |
2101 | ||
2102 | char len[32]; /* Length string */ | |
2103 | ||
2104 | httpGets(len, sizeof(len), http); | |
2105 | } | |
2106 | } | |
ef416fc2 | 2107 | } |
0fa6c7fa | 2108 | else if (http->data_remaining <= 0) |
ef416fc2 | 2109 | { |
0fa6c7fa MS |
2110 | /* |
2111 | * No more data to read... | |
2112 | */ | |
ef416fc2 | 2113 | |
0fa6c7fa | 2114 | return (0); |
ef416fc2 | 2115 | } |
ef416fc2 | 2116 | else |
2117 | { | |
0fa6c7fa MS |
2118 | DEBUG_printf(("1httpRead2: Reading up to %d bytes into buffer.", |
2119 | (int)length)); | |
ef416fc2 | 2120 | |
db8b865d MS |
2121 | if (length > (size_t)http->data_remaining) |
2122 | length = (size_t)http->data_remaining; | |
ef416fc2 | 2123 | |
0fa6c7fa | 2124 | if ((bytes = http_read_buffered(http, buffer, length)) > 0) |
cb7f98ee | 2125 | { |
0fa6c7fa | 2126 | http->data_remaining -= bytes; |
cb7f98ee MS |
2127 | |
2128 | if (http->data_remaining <= 0 && | |
2129 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2130 | { | |
2131 | /* | |
2132 | * Read the trailing blank line now... | |
2133 | */ | |
2134 | ||
2135 | char len[32]; /* Length string */ | |
2136 | ||
2137 | httpGets(len, sizeof(len), http); | |
2138 | } | |
2139 | } | |
ef416fc2 | 2140 | } |
2141 | ||
0fa6c7fa MS |
2142 | if ( |
2143 | #ifdef HAVE_LIBZ | |
2144 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0) && | |
2145 | #endif /* HAVE_LIBZ */ | |
2146 | ((http->data_remaining <= 0 && | |
2147 | http->data_encoding == HTTP_ENCODING_LENGTH) || | |
2148 | (http->data_encoding == HTTP_ENCODING_CHUNKED && bytes == 0))) | |
ef416fc2 | 2149 | { |
a469f8a5 | 2150 | #ifdef HAVE_LIBZ |
0fa6c7fa MS |
2151 | if (http->coding) |
2152 | http_content_coding_finish(http); | |
a469f8a5 MS |
2153 | #endif /* HAVE_LIBZ */ |
2154 | ||
0fa6c7fa MS |
2155 | if (http->state == HTTP_STATE_POST_RECV) |
2156 | http->state ++; | |
6961465f MS |
2157 | else if (http->state == HTTP_STATE_GET_SEND || |
2158 | http->state == HTTP_STATE_POST_SEND) | |
2159 | http->state = HTTP_STATE_WAITING; | |
0fa6c7fa | 2160 | else |
cb7f98ee | 2161 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 2162 | |
0fa6c7fa | 2163 | DEBUG_printf(("1httpRead2: End of content, set state to %s.", |
48bd1142 | 2164 | httpStateString(http->state))); |
ef416fc2 | 2165 | } |
2166 | ||
ef416fc2 | 2167 | return (bytes); |
2168 | } | |
2169 | ||
2170 | ||
ef416fc2 | 2171 | /* |
a469f8a5 MS |
2172 | * 'httpReadRequest()' - Read a HTTP request from a connection. |
2173 | * | |
9c0e8e5d | 2174 | * @since CUPS 1.7/OS X 10.9@ |
ef416fc2 | 2175 | */ |
2176 | ||
a469f8a5 MS |
2177 | http_state_t /* O - New state of connection */ |
2178 | httpReadRequest(http_t *http, /* I - HTTP connection */ | |
2179 | char *uri, /* I - URI buffer */ | |
2180 | size_t urilen) /* I - Size of URI buffer */ | |
dcb445bc | 2181 | { |
a469f8a5 MS |
2182 | char line[4096], /* HTTP request line */ |
2183 | *req_method, /* HTTP request method */ | |
2184 | *req_uri, /* HTTP request URI */ | |
2185 | *req_version; /* HTTP request version number string */ | |
dcb445bc MS |
2186 | |
2187 | ||
a469f8a5 MS |
2188 | /* |
2189 | * Range check input... | |
2190 | */ | |
ef416fc2 | 2191 | |
a469f8a5 MS |
2192 | DEBUG_printf(("httpReadRequest(http=%p, uri=%p, urilen=" CUPS_LLFMT ")", |
2193 | http, uri, CUPS_LLCAST urilen)); | |
ef416fc2 | 2194 | |
a469f8a5 MS |
2195 | if (uri) |
2196 | *uri = '\0'; | |
ef416fc2 | 2197 | |
a469f8a5 | 2198 | if (!http || !uri || urilen < 1) |
dcb445bc | 2199 | { |
a469f8a5 MS |
2200 | DEBUG_puts("1httpReadRequest: Bad arguments, returning HTTP_STATE_ERROR."); |
2201 | return (HTTP_STATE_ERROR); | |
dcb445bc | 2202 | } |
a469f8a5 | 2203 | else if (http->state != HTTP_STATE_WAITING) |
1ff0402e | 2204 | { |
a469f8a5 | 2205 | DEBUG_printf(("1httpReadRequest: Bad state %s, returning HTTP_STATE_ERROR.", |
48bd1142 | 2206 | httpStateString(http->state))); |
a469f8a5 | 2207 | return (HTTP_STATE_ERROR); |
1ff0402e | 2208 | } |
ef416fc2 | 2209 | |
2210 | /* | |
a469f8a5 | 2211 | * Reset state... |
ef416fc2 | 2212 | */ |
2213 | ||
a469f8a5 | 2214 | httpClearFields(http); |
ef416fc2 | 2215 | |
a469f8a5 MS |
2216 | http->activity = time(NULL); |
2217 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
2218 | http->data_remaining = 0; | |
2219 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2220 | http->status = HTTP_STATUS_OK; | |
2221 | http->version = HTTP_VERSION_1_1; | |
bd7854cb | 2222 | |
a29fd7dd | 2223 | /* |
a469f8a5 | 2224 | * Read a line from the socket... |
a29fd7dd MS |
2225 | */ |
2226 | ||
a469f8a5 MS |
2227 | if (!httpGets(line, sizeof(line), http)) |
2228 | { | |
2229 | DEBUG_puts("1httpReadRequest: Unable to read, returning HTTP_STATE_ERROR"); | |
2230 | return (HTTP_STATE_ERROR); | |
2231 | } | |
2232 | ||
2233 | if (!line[0]) | |
2234 | { | |
2235 | DEBUG_puts("1httpReadRequest: Blank line, returning HTTP_STATE_WAITING"); | |
2236 | return (HTTP_STATE_WAITING); | |
2237 | } | |
2238 | ||
2239 | DEBUG_printf(("1httpReadRequest: %s", line)); | |
2240 | ||
2241 | /* | |
2242 | * Parse it... | |
2243 | */ | |
2244 | ||
2245 | req_method = line; | |
2246 | req_uri = line; | |
2247 | ||
2248 | while (*req_uri && !isspace(*req_uri & 255)) | |
2249 | req_uri ++; | |
2250 | ||
2251 | if (!*req_uri) | |
2252 | { | |
2253 | DEBUG_puts("1httpReadRequest: No request URI."); | |
d21dc0ed | 2254 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request URI."), 1); |
a469f8a5 MS |
2255 | return (HTTP_STATE_ERROR); |
2256 | } | |
2257 | ||
2258 | *req_uri++ = '\0'; | |
2259 | ||
2260 | while (*req_uri && isspace(*req_uri & 255)) | |
2261 | req_uri ++; | |
2262 | ||
2263 | req_version = req_uri; | |
2264 | ||
2265 | while (*req_version && !isspace(*req_version & 255)) | |
2266 | req_version ++; | |
2267 | ||
2268 | if (!*req_version) | |
2269 | { | |
2270 | DEBUG_puts("1httpReadRequest: No request protocol version."); | |
d21dc0ed | 2271 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request protocol version."), 1); |
a469f8a5 MS |
2272 | return (HTTP_STATE_ERROR); |
2273 | } | |
2274 | ||
2275 | *req_version++ = '\0'; | |
2276 | ||
2277 | while (*req_version && isspace(*req_version & 255)) | |
2278 | req_version ++; | |
2279 | ||
2280 | /* | |
2281 | * Validate... | |
2282 | */ | |
2283 | ||
2284 | if (!strcmp(req_method, "OPTIONS")) | |
2285 | http->state = HTTP_STATE_OPTIONS; | |
2286 | else if (!strcmp(req_method, "GET")) | |
2287 | http->state = HTTP_STATE_GET; | |
2288 | else if (!strcmp(req_method, "HEAD")) | |
2289 | http->state = HTTP_STATE_HEAD; | |
2290 | else if (!strcmp(req_method, "POST")) | |
2291 | http->state = HTTP_STATE_POST; | |
2292 | else if (!strcmp(req_method, "PUT")) | |
2293 | http->state = HTTP_STATE_PUT; | |
2294 | else if (!strcmp(req_method, "DELETE")) | |
2295 | http->state = HTTP_STATE_DELETE; | |
2296 | else if (!strcmp(req_method, "TRACE")) | |
2297 | http->state = HTTP_STATE_TRACE; | |
2298 | else if (!strcmp(req_method, "CONNECT")) | |
2299 | http->state = HTTP_STATE_CONNECT; | |
2300 | else | |
2301 | { | |
2302 | DEBUG_printf(("1httpReadRequest: Unknown method \"%s\".", req_method)); | |
d21dc0ed | 2303 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request method."), 1); |
a469f8a5 MS |
2304 | return (HTTP_STATE_UNKNOWN_METHOD); |
2305 | } | |
2306 | ||
2307 | DEBUG_printf(("1httpReadRequest: Set state to %s.", | |
48bd1142 | 2308 | httpStateString(http->state))); |
a469f8a5 MS |
2309 | |
2310 | if (!strcmp(req_version, "HTTP/1.0")) | |
2311 | { | |
2312 | http->version = HTTP_VERSION_1_0; | |
2313 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2314 | } | |
2315 | else if (!strcmp(req_version, "HTTP/1.1")) | |
2316 | { | |
2317 | http->version = HTTP_VERSION_1_1; | |
2318 | http->keep_alive = HTTP_KEEPALIVE_ON; | |
2319 | } | |
2320 | else | |
2321 | { | |
2322 | DEBUG_printf(("1httpReadRequest: Unknown version \"%s\".", req_version)); | |
d21dc0ed | 2323 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request version."), 1); |
a469f8a5 MS |
2324 | return (HTTP_STATE_UNKNOWN_VERSION); |
2325 | } | |
2326 | ||
2327 | DEBUG_printf(("1httpReadRequest: URI is \"%s\".", req_uri)); | |
2328 | strlcpy(uri, req_uri, urilen); | |
2329 | ||
2330 | return (http->state); | |
2331 | } | |
2332 | ||
2333 | ||
2334 | /* | |
2335 | * 'httpReconnect()' - Reconnect to a HTTP server. | |
2336 | * | |
2337 | * This function is deprecated. Please use the @link httpReconnect2@ function | |
2338 | * instead. | |
2339 | * | |
2340 | * @deprecated@ | |
2341 | */ | |
2342 | ||
2343 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2344 | httpReconnect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
2345 | { |
2346 | DEBUG_printf(("httpReconnect(http=%p)", http)); | |
2347 | ||
2348 | return (httpReconnect2(http, 30000, NULL)); | |
2349 | } | |
2350 | ||
2351 | ||
2352 | /* | |
2353 | * 'httpReconnect2()' - Reconnect to a HTTP server with timeout and optional | |
2354 | * cancel. | |
2355 | */ | |
2356 | ||
2357 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2358 | httpReconnect2(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
2359 | int msec, /* I - Timeout in milliseconds */ |
2360 | int *cancel) /* I - Pointer to "cancel" variable */ | |
2361 | { | |
2362 | http_addrlist_t *addr; /* Connected address */ | |
2363 | #ifdef DEBUG | |
2364 | http_addrlist_t *current; /* Current address */ | |
2365 | char temp[256]; /* Temporary address string */ | |
2366 | #endif /* DEBUG */ | |
2367 | ||
2368 | ||
2369 | DEBUG_printf(("httpReconnect2(http=%p, msec=%d, cancel=%p)", http, msec, | |
2370 | cancel)); | |
2371 | ||
2372 | if (!http) | |
2373 | { | |
cb7f98ee | 2374 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
a469f8a5 MS |
2375 | return (-1); |
2376 | } | |
2377 | ||
2378 | #ifdef HAVE_SSL | |
2379 | if (http->tls) | |
2380 | { | |
2381 | DEBUG_puts("2httpReconnect2: Shutting down SSL/TLS..."); | |
2c85b752 | 2382 | http_tls_stop(http); |
a469f8a5 MS |
2383 | } |
2384 | #endif /* HAVE_SSL */ | |
2385 | ||
2386 | /* | |
2387 | * Close any previously open socket... | |
2388 | */ | |
2389 | ||
2390 | if (http->fd >= 0) | |
2391 | { | |
2392 | DEBUG_printf(("2httpReconnect2: Closing socket %d...", http->fd)); | |
2393 | ||
87e98392 | 2394 | httpAddrClose(NULL, http->fd); |
a469f8a5 MS |
2395 | |
2396 | http->fd = -1; | |
2397 | } | |
2398 | ||
2399 | /* | |
2400 | * Reset all state (except fields, which may be reused)... | |
2401 | */ | |
2402 | ||
2403 | http->state = HTTP_STATE_WAITING; | |
a469f8a5 MS |
2404 | http->version = HTTP_VERSION_1_1; |
2405 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
a29fd7dd | 2406 | memset(&http->_hostaddr, 0, sizeof(http->_hostaddr)); |
a469f8a5 | 2407 | http->data_encoding = HTTP_ENCODING_FIELDS; |
a29fd7dd MS |
2408 | http->_data_remaining = 0; |
2409 | http->used = 0; | |
a29fd7dd MS |
2410 | http->data_remaining = 0; |
2411 | http->hostaddr = NULL; | |
2412 | http->wused = 0; | |
2413 | ||
ef416fc2 | 2414 | /* |
2415 | * Connect to the server... | |
2416 | */ | |
2417 | ||
1ff0402e MS |
2418 | #ifdef DEBUG |
2419 | for (current = http->addrlist; current; current = current->next) | |
12f89d24 | 2420 | DEBUG_printf(("2httpReconnect2: Address %s:%d", |
1ff0402e | 2421 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
a469f8a5 | 2422 | httpAddrPort(&(current->addr)))); |
1ff0402e MS |
2423 | #endif /* DEBUG */ |
2424 | ||
dcb445bc MS |
2425 | if ((addr = httpAddrConnect2(http->addrlist, &(http->fd), msec, |
2426 | cancel)) == NULL) | |
ef416fc2 | 2427 | { |
2428 | /* | |
2429 | * Unable to connect... | |
2430 | */ | |
2431 | ||
2432 | #ifdef WIN32 | |
2433 | http->error = WSAGetLastError(); | |
2434 | #else | |
2435 | http->error = errno; | |
2436 | #endif /* WIN32 */ | |
cb7f98ee | 2437 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 2438 | |
12f89d24 | 2439 | DEBUG_printf(("1httpReconnect2: httpAddrConnect failed: %s", |
1ff0402e MS |
2440 | strerror(http->error))); |
2441 | ||
ef416fc2 | 2442 | return (-1); |
2443 | } | |
2444 | ||
12f89d24 | 2445 | DEBUG_printf(("2httpReconnect2: New socket=%d", http->fd)); |
1ff0402e | 2446 | |
85dda01c MS |
2447 | if (http->timeout_value > 0) |
2448 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2449 | |
ef416fc2 | 2450 | http->hostaddr = &(addr->addr); |
2451 | http->error = 0; | |
ef416fc2 | 2452 | |
2453 | #ifdef HAVE_SSL | |
cb7f98ee | 2454 | if (http->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 2455 | { |
2456 | /* | |
2457 | * Always do encryption via SSL. | |
2458 | */ | |
2459 | ||
2c85b752 | 2460 | if (http_tls_start(http) != 0) |
ef416fc2 | 2461 | { |
87e98392 | 2462 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2463 | |
2464 | return (-1); | |
2465 | } | |
2466 | } | |
cb7f98ee | 2467 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls_upgrade) |
2c85b752 | 2468 | return (http_tls_upgrade(http)); |
ef416fc2 | 2469 | #endif /* HAVE_SSL */ |
2470 | ||
12f89d24 | 2471 | DEBUG_printf(("1httpReconnect2: Connected to %s:%d...", |
1ff0402e | 2472 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
a469f8a5 | 2473 | httpAddrPort(http->hostaddr))); |
1ff0402e | 2474 | |
ef416fc2 | 2475 | return (0); |
2476 | } | |
2477 | ||
2478 | ||
355e94dc MS |
2479 | /* |
2480 | * 'httpSetAuthString()' - Set the current authorization string. | |
2481 | * | |
2482 | * This function just stores a copy of the current authorization string in | |
2483 | * the HTTP connection object. You must still call httpSetField() to set | |
2484 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2485 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2486 | * | |
f3c17241 | 2487 | * @since CUPS 1.3/OS X 10.5@ |
355e94dc MS |
2488 | */ |
2489 | ||
2490 | void | |
e6b1a6a9 | 2491 | httpSetAuthString(http_t *http, /* I - HTTP connection */ |
355e94dc MS |
2492 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2493 | const char *data) /* I - Auth data (NULL for none) */ | |
2494 | { | |
2495 | /* | |
2496 | * Range check input... | |
2497 | */ | |
2498 | ||
2499 | if (!http) | |
2500 | return; | |
2501 | ||
2502 | if (http->authstring && http->authstring != http->_authstring) | |
2503 | free(http->authstring); | |
2504 | ||
2505 | http->authstring = http->_authstring; | |
2506 | ||
2507 | if (scheme) | |
2508 | { | |
2509 | /* | |
2510 | * Set the current authorization string... | |
2511 | */ | |
2512 | ||
2513 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 2514 | char *temp; |
355e94dc MS |
2515 | |
2516 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
2517 | { |
2518 | if ((temp = malloc(len)) == NULL) | |
2519 | len = sizeof(http->_authstring); | |
2520 | else | |
2521 | http->authstring = temp; | |
2522 | } | |
355e94dc MS |
2523 | |
2524 | if (data) | |
2525 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2526 | else | |
2527 | strlcpy(http->authstring, scheme, len); | |
2528 | } | |
2529 | else | |
2530 | { | |
2531 | /* | |
2532 | * Clear the current authorization string... | |
2533 | */ | |
2534 | ||
2535 | http->_authstring[0] = '\0'; | |
2536 | } | |
2537 | } | |
2538 | ||
2539 | ||
7cf5915e MS |
2540 | /* |
2541 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2542 | * connection. | |
2543 | * | |
f3c17241 | 2544 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
2545 | */ |
2546 | ||
2547 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2548 | httpSetCredentials(http_t *http, /* I - HTTP connection */ |
7cf5915e MS |
2549 | cups_array_t *credentials) /* I - Array of credentials */ |
2550 | { | |
2551 | if (!http || cupsArrayCount(credentials) < 1) | |
2552 | return (-1); | |
2553 | ||
2554 | _httpFreeCredentials(http->tls_credentials); | |
2555 | ||
85dda01c | 2556 | http->tls_credentials = _httpCreateCredentials(credentials); |
7cf5915e MS |
2557 | |
2558 | return (http->tls_credentials ? 0 : -1); | |
2559 | } | |
2560 | ||
2561 | ||
ef416fc2 | 2562 | /* |
6d2f911b | 2563 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2564 | * |
f3c17241 | 2565 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 2566 | */ |
2567 | ||
2568 | void | |
2569 | httpSetCookie(http_t *http, /* I - Connection */ | |
2570 | const char *cookie) /* I - Cookie string */ | |
2571 | { | |
2572 | if (!http) | |
2573 | return; | |
2574 | ||
2575 | if (http->cookie) | |
2576 | free(http->cookie); | |
2577 | ||
2578 | if (cookie) | |
2579 | http->cookie = strdup(cookie); | |
2580 | else | |
2581 | http->cookie = NULL; | |
2582 | } | |
2583 | ||
2584 | ||
c1420c87 MS |
2585 | /* |
2586 | * 'httpSetDefaultField()' - Set the default value of an HTTP header. | |
2587 | * | |
6961465f MS |
2588 | * Currently only @code HTTP_FIELD_ACCEPT_ENCODING@, @code HTTP_FIELD_SERVER@, |
2589 | * and @code HTTP_FIELD_USER_AGENT@ can be set. | |
c1420c87 | 2590 | * |
9c0e8e5d | 2591 | * @since CUPS 1.7/OS X 10.9@ |
c1420c87 MS |
2592 | */ |
2593 | ||
2594 | void | |
e6b1a6a9 | 2595 | httpSetDefaultField(http_t *http, /* I - HTTP connection */ |
c1420c87 MS |
2596 | http_field_t field, /* I - Field index */ |
2597 | const char *value)/* I - Value */ | |
2598 | { | |
2599 | DEBUG_printf(("httpSetDefaultField(http=%p, field=%d(%s), value=\"%s\")", | |
2600 | http, field, http_fields[field], value)); | |
2601 | ||
2602 | if (!http) | |
2603 | return; | |
2604 | ||
2605 | switch (field) | |
2606 | { | |
2607 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2608 | if (http->default_accept_encoding) | |
2609 | _cupsStrFree(http->default_accept_encoding); | |
2610 | ||
2611 | http->default_accept_encoding = value ? _cupsStrAlloc(value) : NULL; | |
2612 | break; | |
2613 | ||
2614 | case HTTP_FIELD_SERVER : | |
2615 | if (http->default_server) | |
2616 | _cupsStrFree(http->default_server); | |
2617 | ||
2618 | http->default_server = value ? _cupsStrAlloc(value) : NULL; | |
2619 | break; | |
2620 | ||
2621 | case HTTP_FIELD_USER_AGENT : | |
2622 | if (http->default_user_agent) | |
2623 | _cupsStrFree(http->default_user_agent); | |
2624 | ||
2625 | http->default_user_agent = value ? _cupsStrAlloc(value) : NULL; | |
2626 | break; | |
2627 | ||
2628 | default : | |
2629 | DEBUG_puts("1httpSetDefaultField: Ignored."); | |
2630 | break; | |
2631 | } | |
2632 | } | |
2633 | ||
2634 | ||
b423cd4c | 2635 | /* |
2636 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2637 | * | |
a469f8a5 MS |
2638 | * Currently only @code HTTP_STATUS_CONTINUE@ is supported for the "expect" |
2639 | * argument. | |
b423cd4c | 2640 | * |
f3c17241 | 2641 | * @since CUPS 1.2/OS X 10.5@ |
b423cd4c | 2642 | */ |
2643 | ||
2644 | void | |
e6b1a6a9 | 2645 | httpSetExpect(http_t *http, /* I - HTTP connection */ |
a469f8a5 | 2646 | http_status_t expect) /* I - HTTP status to expect |
cb7f98ee | 2647 | (@code HTTP_STATUS_CONTINUE@) */ |
b423cd4c | 2648 | { |
cb7f98ee MS |
2649 | DEBUG_printf(("httpSetExpect(http=%p, expect=%d)", http, expect)); |
2650 | ||
b423cd4c | 2651 | if (http) |
2652 | http->expect = expect; | |
2653 | } | |
2654 | ||
2655 | ||
ef416fc2 | 2656 | /* |
2657 | * 'httpSetField()' - Set the value of an HTTP header. | |
2658 | */ | |
2659 | ||
2660 | void | |
e6b1a6a9 | 2661 | httpSetField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2662 | http_field_t field, /* I - Field index */ |
2663 | const char *value) /* I - Value */ | |
2664 | { | |
a469f8a5 MS |
2665 | DEBUG_printf(("httpSetField(http=%p, field=%d(%s), value=\"%s\")", http, |
2666 | field, http_fields[field], value)); | |
2667 | ||
ef416fc2 | 2668 | if (http == NULL || |
2669 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
a469f8a5 | 2670 | field >= HTTP_FIELD_MAX || |
ef416fc2 | 2671 | value == NULL) |
2672 | return; | |
2673 | ||
a469f8a5 MS |
2674 | switch (field) |
2675 | { | |
2676 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2677 | if (http->accept_encoding) | |
2678 | _cupsStrFree(http->accept_encoding); | |
2679 | ||
2680 | http->accept_encoding = _cupsStrAlloc(value); | |
2681 | break; | |
2682 | ||
2683 | case HTTP_FIELD_ALLOW : | |
2684 | if (http->allow) | |
2685 | _cupsStrFree(http->allow); | |
2686 | ||
2687 | http->allow = _cupsStrAlloc(value); | |
2688 | break; | |
2689 | ||
2690 | case HTTP_FIELD_SERVER : | |
2691 | if (http->server) | |
2692 | _cupsStrFree(http->server); | |
2693 | ||
2694 | http->server = _cupsStrAlloc(value); | |
2695 | break; | |
2696 | ||
2697 | default : | |
2698 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
2699 | break; | |
2700 | } | |
f7deaa1a | 2701 | |
f7deaa1a | 2702 | if (field == HTTP_FIELD_AUTHORIZATION) |
2703 | { | |
e07d4801 MS |
2704 | /* |
2705 | * Special case for Authorization: as its contents can be | |
2706 | * longer than HTTP_MAX_VALUE | |
2707 | */ | |
2708 | ||
f7deaa1a | 2709 | if (http->field_authorization) |
2710 | free(http->field_authorization); | |
2711 | ||
2712 | http->field_authorization = strdup(value); | |
2713 | } | |
e07d4801 MS |
2714 | else if (field == HTTP_FIELD_HOST) |
2715 | { | |
2716 | /* | |
f11a948a MS |
2717 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2718 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2719 | */ |
2720 | ||
178cb736 MS |
2721 | char *ptr = strchr(value, ':'); |
2722 | ||
2723 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2724 | { |
2725 | /* | |
2726 | * Bracket IPv6 numeric addresses... | |
2727 | * | |
2728 | * This is slightly inefficient (basically copying twice), but is an edge | |
2729 | * case and not worth optimizing... | |
2730 | */ | |
e07d4801 | 2731 | |
f11a948a MS |
2732 | snprintf(http->fields[HTTP_FIELD_HOST], |
2733 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2734 | } | |
2735 | else | |
e07d4801 | 2736 | { |
f11a948a MS |
2737 | /* |
2738 | * Check for a trailing dot on the hostname... | |
2739 | */ | |
2740 | ||
178cb736 | 2741 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2742 | |
2743 | if (*ptr) | |
2744 | { | |
2745 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2746 | |
f11a948a MS |
2747 | if (*ptr == '.') |
2748 | *ptr = '\0'; | |
2749 | } | |
e07d4801 MS |
2750 | } |
2751 | } | |
a469f8a5 MS |
2752 | #ifdef HAVE_LIBZ |
2753 | else if (field == HTTP_FIELD_CONTENT_ENCODING && | |
2754 | http->data_encoding != HTTP_ENCODING_FIELDS) | |
2755 | { | |
2756 | DEBUG_puts("1httpSetField: Calling http_content_coding_start."); | |
2757 | http_content_coding_start(http, value); | |
2758 | } | |
2759 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2760 | } |
2761 | ||
2762 | ||
e6b1a6a9 MS |
2763 | /* |
2764 | * 'httpSetKeepAlive()' - Set the current Keep-Alive state of a connection. | |
2765 | * | |
2766 | * @since CUPS 2.0@ | |
2767 | */ | |
2768 | ||
2769 | void | |
2770 | httpSetKeepAlive( | |
2771 | http_t *http, /* I - HTTP connection */ | |
2772 | http_keepalive_t keep_alive) /* I - New Keep-Alive value */ | |
2773 | { | |
2774 | if (http) | |
2775 | http->keep_alive = keep_alive; | |
2776 | } | |
2777 | ||
2778 | ||
ef416fc2 | 2779 | /* |
2780 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2781 | * | |
f3c17241 | 2782 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 2783 | */ |
2784 | ||
2785 | void | |
e6b1a6a9 | 2786 | httpSetLength(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2787 | size_t length) /* I - Length (0 for chunked) */ |
2788 | { | |
a469f8a5 MS |
2789 | DEBUG_printf(("httpSetLength(http=%p, length=" CUPS_LLFMT ")", http, |
2790 | CUPS_LLCAST length)); | |
2791 | ||
ef416fc2 | 2792 | if (!http) |
2793 | return; | |
2794 | ||
2795 | if (!length) | |
2796 | { | |
5a9febac MS |
2797 | strlcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked", |
2798 | HTTP_MAX_VALUE); | |
ef416fc2 | 2799 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; |
2800 | } | |
2801 | else | |
2802 | { | |
2803 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2804 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2805 | CUPS_LLFMT, CUPS_LLCAST length); | |
2806 | } | |
2807 | } | |
2808 | ||
2809 | ||
10d09e33 | 2810 | /* |
f228370c | 2811 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2812 | * |
2813 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2814 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2815 | * | |
f3c17241 | 2816 | * @since CUPS 1.5/OS X 10.7@ |
10d09e33 MS |
2817 | */ |
2818 | ||
2819 | void | |
f228370c | 2820 | httpSetTimeout( |
e6b1a6a9 | 2821 | http_t *http, /* I - HTTP connection */ |
f228370c | 2822 | double timeout, /* I - Number of seconds for timeout, |
10d09e33 | 2823 | must be greater than 0 */ |
f228370c MS |
2824 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2825 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2826 | { |
2827 | if (!http || timeout <= 0.0) | |
2828 | return; | |
2829 | ||
85dda01c MS |
2830 | http->timeout_cb = cb; |
2831 | http->timeout_data = user_data; | |
2832 | http->timeout_value = timeout; | |
10d09e33 MS |
2833 | |
2834 | if (http->fd >= 0) | |
85dda01c | 2835 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2836 | |
85dda01c | 2837 | http_set_wait(http); |
10d09e33 MS |
2838 | } |
2839 | ||
2840 | ||
5ec1fd3d MS |
2841 | /* |
2842 | * 'httpShutdown()' - Shutdown one side of an HTTP connection. | |
2843 | * | |
2844 | * @since CUPS 2.0@ | |
2845 | */ | |
2846 | ||
2847 | void | |
2848 | httpShutdown(http_t *http) /* I - HTTP connection */ | |
2849 | { | |
2850 | if (!http || http->fd < 0) | |
2851 | return; | |
2852 | ||
2853 | if (http->tls) | |
d3d89474 | 2854 | http_tls_stop(http); |
5ec1fd3d MS |
2855 | |
2856 | shutdown(http->fd, SHUT_RD); | |
2857 | } | |
2858 | ||
2859 | ||
ef416fc2 | 2860 | /* |
2861 | * 'httpTrace()' - Send an TRACE request to the server. | |
2862 | */ | |
2863 | ||
2864 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2865 | httpTrace(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2866 | const char *uri) /* I - URI for trace */ |
2867 | { | |
cb7f98ee | 2868 | return (http_send(http, HTTP_STATE_TRACE, uri)); |
ef416fc2 | 2869 | } |
2870 | ||
2871 | ||
2872 | /* | |
e60ec91f MS |
2873 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2874 | * | |
2875 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2876 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2877 | */ |
2878 | ||
e60ec91f | 2879 | int /* O - 1 to continue, 0 to stop */ |
e6b1a6a9 | 2880 | _httpUpdate(http_t *http, /* I - HTTP connection */ |
e60ec91f | 2881 | http_status_t *status) /* O - Current HTTP status */ |
ef416fc2 | 2882 | { |
2883 | char line[32768], /* Line from connection... */ | |
2884 | *value; /* Pointer to value on line */ | |
2885 | http_field_t field; /* Field index */ | |
e60ec91f | 2886 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2887 | |
2888 | ||
e60ec91f | 2889 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
48bd1142 | 2890 | httpStateString(http->state))); |
ef416fc2 | 2891 | |
2892 | /* | |
e60ec91f | 2893 | * Grab a single line from the connection... |
ef416fc2 | 2894 | */ |
2895 | ||
e60ec91f | 2896 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2897 | { |
cb7f98ee | 2898 | *status = HTTP_STATUS_ERROR; |
e60ec91f | 2899 | return (0); |
ef416fc2 | 2900 | } |
2901 | ||
e60ec91f | 2902 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2903 | |
e60ec91f | 2904 | if (line[0] == '\0') |
ef416fc2 | 2905 | { |
e60ec91f MS |
2906 | /* |
2907 | * Blank line means the start of the data section (if any). Return | |
2908 | * the result code, too... | |
2909 | * | |
a469f8a5 MS |
2910 | * If we get status 100 (HTTP_STATUS_CONTINUE), then we *don't* change |
2911 | * states. Instead, we just return HTTP_STATUS_CONTINUE to the caller and | |
2912 | * keep on tryin'... | |
e60ec91f | 2913 | */ |
ef416fc2 | 2914 | |
a469f8a5 | 2915 | if (http->status == HTTP_STATUS_CONTINUE) |
ef416fc2 | 2916 | { |
e60ec91f MS |
2917 | *status = http->status; |
2918 | return (0); | |
2919 | } | |
ef416fc2 | 2920 | |
cb7f98ee | 2921 | if (http->status < HTTP_STATUS_BAD_REQUEST) |
e60ec91f | 2922 | http->digest_tries = 0; |
ef416fc2 | 2923 | |
2924 | #ifdef HAVE_SSL | |
cb7f98ee | 2925 | if (http->status == HTTP_STATUS_SWITCHING_PROTOCOLS && !http->tls) |
e60ec91f | 2926 | { |
2c85b752 | 2927 | if (http_tls_start(http) != 0) |
ef416fc2 | 2928 | { |
87e98392 | 2929 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2930 | |
cb7f98ee | 2931 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f | 2932 | return (0); |
ef416fc2 | 2933 | } |
e60ec91f | 2934 | |
a469f8a5 | 2935 | *status = HTTP_STATUS_CONTINUE; |
e60ec91f MS |
2936 | return (0); |
2937 | } | |
ef416fc2 | 2938 | #endif /* HAVE_SSL */ |
2939 | ||
a469f8a5 MS |
2940 | if (http_set_length(http) < 0) |
2941 | { | |
2942 | DEBUG_puts("1_httpUpdate: Bad Content-Length."); | |
2943 | http->error = EINVAL; | |
cb7f98ee | 2944 | http->status = *status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
2945 | return (0); |
2946 | } | |
ef416fc2 | 2947 | |
e60ec91f MS |
2948 | switch (http->state) |
2949 | { | |
c41769ff MS |
2950 | case HTTP_STATE_GET : |
2951 | case HTTP_STATE_POST : | |
a469f8a5 | 2952 | case HTTP_STATE_POST_RECV : |
c41769ff | 2953 | case HTTP_STATE_PUT : |
e60ec91f | 2954 | http->state ++; |
a469f8a5 MS |
2955 | |
2956 | DEBUG_printf(("1_httpUpdate: Set state to %s.", | |
48bd1142 | 2957 | httpStateString(http->state))); |
a469f8a5 | 2958 | |
c41769ff MS |
2959 | case HTTP_STATE_POST_SEND : |
2960 | case HTTP_STATE_HEAD : | |
e60ec91f | 2961 | break; |
ef416fc2 | 2962 | |
e60ec91f | 2963 | default : |
a469f8a5 MS |
2964 | http->state = HTTP_STATE_WAITING; |
2965 | ||
cb7f98ee | 2966 | DEBUG_puts("1_httpUpdate: Reset state to HTTP_STATE_WAITING."); |
e60ec91f | 2967 | break; |
ef416fc2 | 2968 | } |
e60ec91f | 2969 | |
a469f8a5 MS |
2970 | #ifdef HAVE_LIBZ |
2971 | DEBUG_puts("1_httpUpdate: Calling http_content_coding_start."); | |
2972 | http_content_coding_start(http, | |
2973 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
2974 | #endif /* HAVE_LIBZ */ | |
2975 | ||
e60ec91f MS |
2976 | *status = http->status; |
2977 | return (0); | |
2978 | } | |
2979 | else if (!strncmp(line, "HTTP/", 5)) | |
2980 | { | |
2981 | /* | |
2982 | * Got the beginning of a response... | |
2983 | */ | |
2984 | ||
2985 | int intstatus; /* Status value as an integer */ | |
2986 | ||
2987 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
2988 | { | |
cb7f98ee | 2989 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f MS |
2990 | return (0); |
2991 | } | |
2992 | ||
a469f8a5 MS |
2993 | httpClearFields(http); |
2994 | ||
e60ec91f MS |
2995 | http->version = (http_version_t)(major * 100 + minor); |
2996 | *status = http->status = (http_status_t)intstatus; | |
2997 | } | |
2998 | else if ((value = strchr(line, ':')) != NULL) | |
2999 | { | |
3000 | /* | |
3001 | * Got a value... | |
3002 | */ | |
3003 | ||
3004 | *value++ = '\0'; | |
3005 | while (_cups_isspace(*value)) | |
3006 | value ++; | |
3007 | ||
a469f8a5 MS |
3008 | DEBUG_printf(("1_httpUpdate: Header %s: %s", line, value)); |
3009 | ||
e60ec91f MS |
3010 | /* |
3011 | * Be tolerants of servers that send unknown attribute fields... | |
3012 | */ | |
3013 | ||
88f9aafc | 3014 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 3015 | { |
3016 | /* | |
e60ec91f | 3017 | * "Expect: 100-continue" or similar... |
ef416fc2 | 3018 | */ |
3019 | ||
e60ec91f | 3020 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 3021 | } |
88f9aafc | 3022 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 3023 | { |
3024 | /* | |
e60ec91f | 3025 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 3026 | */ |
3027 | ||
e60ec91f MS |
3028 | httpSetCookie(http, value); |
3029 | } | |
48bd1142 | 3030 | else if ((field = httpFieldValue(line)) != HTTP_FIELD_UNKNOWN) |
e60ec91f MS |
3031 | httpSetField(http, field, value); |
3032 | #ifdef DEBUG | |
3033 | else | |
3034 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
3035 | #endif /* DEBUG */ | |
3036 | } | |
3037 | else | |
3038 | { | |
3039 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
a469f8a5 | 3040 | http->error = EINVAL; |
cb7f98ee | 3041 | http->status = *status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3042 | return (0); |
3043 | } | |
ef416fc2 | 3044 | |
e60ec91f MS |
3045 | return (1); |
3046 | } | |
ef416fc2 | 3047 | |
ef416fc2 | 3048 | |
e60ec91f MS |
3049 | /* |
3050 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
3051 | */ | |
ef416fc2 | 3052 | |
e60ec91f | 3053 | http_status_t /* O - HTTP status */ |
e6b1a6a9 | 3054 | httpUpdate(http_t *http) /* I - HTTP connection */ |
e60ec91f MS |
3055 | { |
3056 | http_status_t status; /* Request status */ | |
3057 | ||
3058 | ||
3059 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
48bd1142 | 3060 | httpStateString(http->state))); |
e60ec91f MS |
3061 | |
3062 | /* | |
3063 | * Flush pending data, if any... | |
3064 | */ | |
3065 | ||
3066 | if (http->wused) | |
3067 | { | |
3068 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
3069 | ||
3070 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 3071 | return (HTTP_STATUS_ERROR); |
ef416fc2 | 3072 | } |
3073 | ||
e60ec91f MS |
3074 | /* |
3075 | * If we haven't issued any commands, then there is nothing to "update"... | |
3076 | */ | |
3077 | ||
a469f8a5 | 3078 | if (http->state == HTTP_STATE_WAITING) |
cb7f98ee | 3079 | return (HTTP_STATUS_CONTINUE); |
e60ec91f MS |
3080 | |
3081 | /* | |
3082 | * Grab all of the lines we can from the connection... | |
3083 | */ | |
3084 | ||
3085 | while (_httpUpdate(http, &status)); | |
3086 | ||
ef416fc2 | 3087 | /* |
3088 | * See if there was an error... | |
3089 | */ | |
3090 | ||
cb7f98ee | 3091 | if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE) |
e07d4801 MS |
3092 | { |
3093 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 3094 | return (http->status); |
e07d4801 | 3095 | } |
ef416fc2 | 3096 | |
3097 | if (http->error) | |
3098 | { | |
e07d4801 | 3099 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 3100 | strerror(http->error))); |
cb7f98ee MS |
3101 | http->status = HTTP_STATUS_ERROR; |
3102 | return (HTTP_STATUS_ERROR); | |
ef416fc2 | 3103 | } |
3104 | ||
3105 | /* | |
e60ec91f | 3106 | * Return the current status... |
ef416fc2 | 3107 | */ |
3108 | ||
e60ec91f | 3109 | return (status); |
ef416fc2 | 3110 | } |
3111 | ||
3112 | ||
38e73f87 MS |
3113 | /* |
3114 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
3115 | */ | |
3116 | ||
3117 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3118 | _httpWait(http_t *http, /* I - HTTP connection */ |
38e73f87 MS |
3119 | int msec, /* I - Milliseconds to wait */ |
3120 | int usessl) /* I - Use SSL context? */ | |
3121 | { | |
3122 | #ifdef HAVE_POLL | |
3123 | struct pollfd pfd; /* Polled file descriptor */ | |
3124 | #else | |
3125 | fd_set input_set; /* select() input set */ | |
3126 | struct timeval timeout; /* Timeout */ | |
3127 | #endif /* HAVE_POLL */ | |
3128 | int nfds; /* Result from select()/poll() */ | |
3129 | ||
3130 | ||
e07d4801 | 3131 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
3132 | |
3133 | if (http->fd < 0) | |
f8b3a85b MS |
3134 | { |
3135 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 3136 | return (0); |
f8b3a85b | 3137 | } |
38e73f87 MS |
3138 | |
3139 | /* | |
3140 | * Check the SSL/TLS buffers for data first... | |
3141 | */ | |
3142 | ||
3143 | #ifdef HAVE_SSL | |
2bf2b8e9 | 3144 | if (http->tls && http_tls_pending(http)) |
38e73f87 | 3145 | { |
2c85b752 MS |
3146 | DEBUG_puts("5_httpWait: Return 1 since there is pending TLS data."); |
3147 | return (1); | |
38e73f87 MS |
3148 | } |
3149 | #endif /* HAVE_SSL */ | |
3150 | ||
3151 | /* | |
3152 | * Then try doing a select() or poll() to poll the socket... | |
3153 | */ | |
3154 | ||
3155 | #ifdef HAVE_POLL | |
3156 | pfd.fd = http->fd; | |
3157 | pfd.events = POLLIN; | |
3158 | ||
5a9febac MS |
3159 | do |
3160 | { | |
3161 | nfds = poll(&pfd, 1, msec); | |
3162 | } | |
3163 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
3164 | |
3165 | #else | |
3166 | do | |
3167 | { | |
3168 | FD_ZERO(&input_set); | |
3169 | FD_SET(http->fd, &input_set); | |
3170 | ||
e07d4801 | 3171 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
3172 | |
3173 | if (msec >= 0) | |
3174 | { | |
3175 | timeout.tv_sec = msec / 1000; | |
3176 | timeout.tv_usec = (msec % 1000) * 1000; | |
3177 | ||
3178 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
3179 | } | |
3180 | else | |
3181 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
3182 | ||
e07d4801 | 3183 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
3184 | } |
3185 | # ifdef WIN32 | |
cc754834 MS |
3186 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
3187 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 3188 | # else |
e07d4801 | 3189 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
3190 | # endif /* WIN32 */ |
3191 | #endif /* HAVE_POLL */ | |
3192 | ||
f8b3a85b MS |
3193 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
3194 | errno)); | |
38e73f87 MS |
3195 | |
3196 | return (nfds > 0); | |
3197 | } | |
3198 | ||
3199 | ||
ef416fc2 | 3200 | /* |
3201 | * 'httpWait()' - Wait for data available on a connection. | |
3202 | * | |
f3c17241 | 3203 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 3204 | */ |
3205 | ||
3206 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3207 | httpWait(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3208 | int msec) /* I - Milliseconds to wait */ |
3209 | { | |
3210 | /* | |
3211 | * First see if there is data in the buffer... | |
3212 | */ | |
3213 | ||
22c9029b MS |
3214 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
3215 | ||
ef416fc2 | 3216 | if (http == NULL) |
3217 | return (0); | |
3218 | ||
3219 | if (http->used) | |
22c9029b MS |
3220 | { |
3221 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 3222 | return (1); |
22c9029b | 3223 | } |
ef416fc2 | 3224 | |
0fa6c7fa MS |
3225 | #ifdef HAVE_LIBZ |
3226 | if (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in > 0) | |
3227 | { | |
3228 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
3229 | return (1); | |
3230 | } | |
3231 | #endif /* HAVE_LIBZ */ | |
3232 | ||
8ca02f3c | 3233 | /* |
3234 | * Flush pending data, if any... | |
3235 | */ | |
3236 | ||
3237 | if (http->wused) | |
3238 | { | |
22c9029b MS |
3239 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3240 | ||
8ca02f3c | 3241 | if (httpFlushWrite(http) < 0) |
3242 | return (0); | |
3243 | } | |
3244 | ||
ef416fc2 | 3245 | /* |
3246 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3247 | */ | |
3248 | ||
38e73f87 | 3249 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3250 | } |
3251 | ||
3252 | ||
3253 | /* | |
3254 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3255 | * |
3256 | * This function is deprecated. Use the httpWrite2() function which can | |
3257 | * write more than 2GB of data. | |
3258 | * | |
3259 | * @deprecated@ | |
ef416fc2 | 3260 | */ |
ef55b745 | 3261 | |
ef416fc2 | 3262 | int /* O - Number of bytes written */ |
e6b1a6a9 | 3263 | httpWrite(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3264 | const char *buffer, /* I - Buffer for data */ |
3265 | int length) /* I - Number of bytes to write */ | |
3266 | { | |
a4d04587 | 3267 | return ((int)httpWrite2(http, buffer, length)); |
3268 | } | |
3269 | ||
3270 | ||
3271 | /* | |
3272 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3273 | * |
f3c17241 | 3274 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 3275 | */ |
ef55b745 | 3276 | |
a4d04587 | 3277 | ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 3278 | httpWrite2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 3279 | const char *buffer, /* I - Buffer for data */ |
3280 | size_t length) /* I - Number of bytes to write */ | |
3281 | { | |
3282 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3283 | |
3284 | ||
e07d4801 | 3285 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3286 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3287 | |
3288 | /* | |
3289 | * Range check input... | |
3290 | */ | |
3291 | ||
a469f8a5 MS |
3292 | if (!http || !buffer) |
3293 | { | |
3294 | DEBUG_puts("1httpWrite2: Returning -1 due to bad input."); | |
ef416fc2 | 3295 | return (-1); |
a469f8a5 | 3296 | } |
ef416fc2 | 3297 | |
3298 | /* | |
3299 | * Mark activity on the connection... | |
3300 | */ | |
3301 | ||
3302 | http->activity = time(NULL); | |
3303 | ||
3304 | /* | |
3305 | * Buffer small writes for better performance... | |
3306 | */ | |
3307 | ||
a469f8a5 MS |
3308 | #ifdef HAVE_LIBZ |
3309 | if (http->coding) | |
3310 | { | |
3311 | DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding)); | |
3312 | ||
3313 | if (length == 0) | |
3314 | { | |
3315 | http_content_coding_finish(http); | |
3316 | bytes = 0; | |
3317 | } | |
3318 | else | |
3319 | { | |
3320 | http->stream.next_in = (Bytef *)buffer; | |
3321 | http->stream.avail_in = length; | |
3322 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
3323 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
3324 | ||
3325 | while (deflate(&(http->stream), Z_NO_FLUSH) == Z_OK) | |
3326 | { | |
3327 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3328 | ||
3329 | if (http->stream.avail_out == 0) | |
3330 | { | |
3331 | if (httpFlushWrite(http) < 0) | |
3332 | { | |
3333 | DEBUG_puts("1httpWrite2: Unable to flush, returning -1."); | |
3334 | return (-1); | |
3335 | } | |
3336 | ||
3337 | http->stream.next_out = (Bytef *)http->wbuffer; | |
3338 | http->stream.avail_out = sizeof(http->wbuffer); | |
3339 | } | |
3340 | } | |
3341 | ||
3342 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3343 | bytes = length; | |
3344 | } | |
3345 | } | |
3346 | else | |
3347 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 3348 | if (length > 0) |
3349 | { | |
3350 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
3351 | { | |
e07d4801 MS |
3352 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3353 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3354 | |
3355 | httpFlushWrite(http); | |
3356 | } | |
3357 | ||
38e73f87 MS |
3358 | if ((length + http->wused) <= sizeof(http->wbuffer) && |
3359 | length < sizeof(http->wbuffer)) | |
ef416fc2 | 3360 | { |
3361 | /* | |
3362 | * Write to buffer... | |
3363 | */ | |
3364 | ||
e07d4801 | 3365 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3366 | CUPS_LLCAST length)); |
ef416fc2 | 3367 | |
3368 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3369 | http->wused += (int)length; |
3370 | bytes = (ssize_t)length; | |
ef416fc2 | 3371 | } |
3372 | else | |
3373 | { | |
3374 | /* | |
3375 | * Otherwise write the data directly... | |
3376 | */ | |
3377 | ||
e07d4801 | 3378 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3379 | CUPS_LLCAST length)); |
ef416fc2 | 3380 | |
a469f8a5 | 3381 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
b86bc4cf | 3382 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 3383 | else |
b86bc4cf | 3384 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 3385 | |
e07d4801 | 3386 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3387 | CUPS_LLCAST bytes)); |
ef416fc2 | 3388 | } |
3389 | ||
a469f8a5 | 3390 | if (http->data_encoding == HTTP_ENCODING_LENGTH) |
ef416fc2 | 3391 | http->data_remaining -= bytes; |
3392 | } | |
3393 | else | |
3394 | bytes = 0; | |
3395 | ||
3396 | /* | |
3397 | * Handle end-of-request processing... | |
3398 | */ | |
3399 | ||
a469f8a5 MS |
3400 | if ((http->data_encoding == HTTP_ENCODING_CHUNKED && length == 0) || |
3401 | (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0)) | |
ef416fc2 | 3402 | { |
3403 | /* | |
3404 | * Finished with the transfer; unless we are sending POST or PUT | |
3405 | * data, go idle... | |
3406 | */ | |
3407 | ||
db8b865d MS |
3408 | #ifdef HAVE_LIBZ |
3409 | if (http->coding) | |
3410 | http_content_coding_finish(http); | |
3411 | #endif /* HAVE_LIBZ */ | |
3412 | ||
ef416fc2 | 3413 | if (http->wused) |
a469f8a5 MS |
3414 | { |
3415 | if (httpFlushWrite(http) < 0) | |
3416 | return (-1); | |
3417 | } | |
ef416fc2 | 3418 | |
a469f8a5 | 3419 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 3420 | { |
3421 | /* | |
3422 | * Send a 0-length chunk at the end of the request... | |
3423 | */ | |
3424 | ||
3425 | http_write(http, "0\r\n\r\n", 5); | |
3426 | ||
3427 | /* | |
3428 | * Reset the data state... | |
3429 | */ | |
3430 | ||
a469f8a5 | 3431 | http->data_encoding = HTTP_ENCODING_FIELDS; |
ef416fc2 | 3432 | http->data_remaining = 0; |
3433 | } | |
a469f8a5 MS |
3434 | |
3435 | if (http->state == HTTP_STATE_POST_RECV) | |
3436 | http->state ++; | |
dfc45c1b MS |
3437 | else if (http->state == HTTP_STATE_POST_SEND || |
3438 | http->state == HTTP_STATE_GET_SEND) | |
ad29aeab | 3439 | http->state = HTTP_STATE_WAITING; |
db8b865d | 3440 | else |
cb7f98ee | 3441 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 3442 | |
db8b865d | 3443 | DEBUG_printf(("2httpWrite2: Changed state to %s.", |
48bd1142 | 3444 | httpStateString(http->state))); |
ef416fc2 | 3445 | } |
3446 | ||
a469f8a5 MS |
3447 | DEBUG_printf(("1httpWrite2: Returning " CUPS_LLFMT ".", CUPS_LLCAST bytes)); |
3448 | ||
ef416fc2 | 3449 | return (bytes); |
3450 | } | |
3451 | ||
3452 | ||
a469f8a5 MS |
3453 | /* |
3454 | * 'httpWriteResponse()' - Write a HTTP response to a client connection. | |
3455 | * | |
9c0e8e5d | 3456 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
3457 | */ |
3458 | ||
3459 | int /* O - 0 on success, -1 on error */ | |
3460 | httpWriteResponse(http_t *http, /* I - HTTP connection */ | |
3461 | http_status_t status) /* I - Status code */ | |
3462 | { | |
3463 | http_encoding_t old_encoding; /* Old data_encoding value */ | |
3464 | off_t old_remaining; /* Old data_remaining value */ | |
3465 | ||
3466 | ||
3467 | /* | |
3468 | * Range check input... | |
3469 | */ | |
3470 | ||
3471 | DEBUG_printf(("httpWriteResponse(http=%p, status=%d)", http, status)); | |
3472 | ||
3473 | if (!http || status < HTTP_STATUS_CONTINUE) | |
3474 | { | |
3475 | DEBUG_puts("1httpWriteResponse: Bad input."); | |
3476 | return (-1); | |
3477 | } | |
3478 | ||
3479 | /* | |
3480 | * Set the various standard fields if they aren't already... | |
3481 | */ | |
3482 | ||
3483 | if (!http->fields[HTTP_FIELD_DATE][0]) | |
3484 | httpSetField(http, HTTP_FIELD_DATE, httpGetDateString(time(NULL))); | |
3485 | ||
cb7f98ee | 3486 | if (status >= HTTP_STATUS_BAD_REQUEST && http->keep_alive) |
a469f8a5 | 3487 | { |
5ec1fd3d | 3488 | http->keep_alive = HTTP_KEEPALIVE_OFF; |
a469f8a5 MS |
3489 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, ""); |
3490 | } | |
3491 | ||
3492 | if (http->version == HTTP_VERSION_1_1) | |
3493 | { | |
3494 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3495 | { | |
3496 | if (http->keep_alive) | |
3497 | httpSetField(http, HTTP_FIELD_CONNECTION, "Keep-Alive"); | |
3498 | else | |
3499 | httpSetField(http, HTTP_FIELD_CONNECTION, "close"); | |
3500 | } | |
3501 | ||
3502 | if (http->keep_alive && !http->fields[HTTP_FIELD_KEEP_ALIVE][0]) | |
3503 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, "timeout=10"); | |
3504 | } | |
3505 | ||
3506 | #ifdef HAVE_SSL | |
e200616a MS |
3507 | if (status == HTTP_STATUS_UPGRADE_REQUIRED || |
3508 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3509 | { |
3510 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3511 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3512 | ||
3513 | if (!http->fields[HTTP_FIELD_UPGRADE][0]) | |
3514 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); | |
e200616a MS |
3515 | |
3516 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) | |
3517 | httpSetField(http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 MS |
3518 | } |
3519 | #endif /* HAVE_SSL */ | |
3520 | ||
3521 | if (!http->server) | |
c1420c87 MS |
3522 | httpSetField(http, HTTP_FIELD_SERVER, |
3523 | http->default_server ? http->default_server : CUPS_MINIMAL); | |
a469f8a5 | 3524 | |
a469f8a5 MS |
3525 | /* |
3526 | * Set the Accept-Encoding field if it isn't already... | |
3527 | */ | |
3528 | ||
3529 | if (!http->accept_encoding) | |
c1420c87 MS |
3530 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, |
3531 | http->default_accept_encoding ? http->default_accept_encoding : | |
3532 | #ifdef HAVE_LIBZ | |
3533 | "gzip, deflate, identity"); | |
3534 | #else | |
3535 | "identity"); | |
a469f8a5 MS |
3536 | #endif /* HAVE_LIBZ */ |
3537 | ||
3538 | /* | |
3539 | * Send the response header... | |
3540 | */ | |
3541 | ||
3542 | old_encoding = http->data_encoding; | |
3543 | old_remaining = http->data_remaining; | |
3544 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
3545 | ||
3546 | if (httpPrintf(http, "HTTP/%d.%d %d %s\r\n", http->version / 100, | |
3547 | http->version % 100, (int)status, httpStatus(status)) < 0) | |
3548 | { | |
3549 | http->status = HTTP_STATUS_ERROR; | |
3550 | return (-1); | |
3551 | } | |
3552 | ||
3553 | if (status != HTTP_STATUS_CONTINUE) | |
3554 | { | |
3555 | /* | |
3556 | * 100 Continue doesn't have the rest of the response headers... | |
3557 | */ | |
3558 | ||
3559 | int i; /* Looping var */ | |
3560 | const char *value; /* Field value */ | |
3561 | ||
3562 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3563 | { | |
3564 | if ((value = httpGetField(http, i)) != NULL && *value) | |
3565 | { | |
3566 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) | |
3567 | { | |
3568 | http->status = HTTP_STATUS_ERROR; | |
3569 | return (-1); | |
3570 | } | |
3571 | } | |
3572 | } | |
3573 | ||
3574 | if (http->cookie) | |
3575 | { | |
e200616a MS |
3576 | if (httpPrintf(http, "Set-Cookie: %s path=/ httponly%s\r\n", |
3577 | http->cookie, http->tls ? " secure" : "") < 1) | |
a469f8a5 | 3578 | { |
cb7f98ee | 3579 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3580 | return (-1); |
3581 | } | |
3582 | } | |
3583 | } | |
3584 | ||
3585 | if (httpWrite2(http, "\r\n", 2) < 2) | |
3586 | { | |
cb7f98ee | 3587 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3588 | return (-1); |
3589 | } | |
3590 | ||
3591 | if (httpFlushWrite(http) < 0) | |
3592 | { | |
cb7f98ee | 3593 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3594 | return (-1); |
3595 | } | |
3596 | ||
e200616a MS |
3597 | if (status == HTTP_STATUS_CONTINUE || |
3598 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3599 | { |
3600 | /* | |
3601 | * Restore the old data_encoding and data_length values... | |
3602 | */ | |
3603 | ||
3604 | http->data_encoding = old_encoding; | |
3605 | http->data_remaining = old_remaining; | |
3606 | ||
3607 | if (old_remaining <= INT_MAX) | |
3608 | http->_data_remaining = (int)old_remaining; | |
3609 | else | |
3610 | http->_data_remaining = INT_MAX; | |
3611 | } | |
3612 | else if (http->state == HTTP_STATE_OPTIONS || | |
3613 | http->state == HTTP_STATE_HEAD || | |
3614 | http->state == HTTP_STATE_PUT || | |
3615 | http->state == HTTP_STATE_TRACE || | |
cb7f98ee MS |
3616 | http->state == HTTP_STATE_CONNECT || |
3617 | http->state == HTTP_STATE_STATUS) | |
a469f8a5 MS |
3618 | { |
3619 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
48bd1142 | 3620 | "was %s.", httpStateString(http->state))); |
a469f8a5 MS |
3621 | http->state = HTTP_STATE_WAITING; |
3622 | } | |
3623 | else | |
3624 | { | |
3625 | /* | |
3626 | * Force data_encoding and data_length to be set according to the response | |
3627 | * headers... | |
3628 | */ | |
3629 | ||
3630 | http_set_length(http); | |
3631 | ||
dfc45c1b MS |
3632 | if (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0) |
3633 | { | |
3634 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
3635 | "was %s.", httpStateString(http->state))); | |
3636 | http->state = HTTP_STATE_WAITING; | |
3637 | return (0); | |
3638 | } | |
3639 | ||
db8b865d | 3640 | #ifdef HAVE_LIBZ |
a469f8a5 MS |
3641 | /* |
3642 | * Then start any content encoding... | |
3643 | */ | |
3644 | ||
3645 | DEBUG_puts("1httpWriteResponse: Calling http_content_coding_start."); | |
3646 | http_content_coding_start(http, | |
3647 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
db8b865d | 3648 | #endif /* HAVE_LIBZ */ |
dfc45c1b | 3649 | |
a469f8a5 MS |
3650 | } |
3651 | ||
3652 | return (0); | |
3653 | } | |
3654 | ||
3655 | ||
2c85b752 | 3656 | #ifdef HAVE_LIBZ |
411affcf | 3657 | /* |
2c85b752 | 3658 | * 'http_content_coding_finish()' - Finish doing any content encoding. |
411affcf | 3659 | */ |
3660 | ||
2c85b752 MS |
3661 | static void |
3662 | http_content_coding_finish( | |
3663 | http_t *http) /* I - HTTP connection */ | |
a469f8a5 MS |
3664 | { |
3665 | int zerr; /* Compression status */ | |
d2263221 | 3666 | Byte dummy[1]; /* Dummy read buffer */ |
a469f8a5 MS |
3667 | |
3668 | ||
3669 | switch (http->coding) | |
3670 | { | |
3671 | case _HTTP_CODING_DEFLATE : | |
3672 | case _HTTP_CODING_GZIP : | |
d2263221 MS |
3673 | http->stream.next_in = dummy; |
3674 | http->stream.avail_in = 0; | |
3675 | ||
a469f8a5 MS |
3676 | do |
3677 | { | |
3678 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
3679 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
3680 | ||
3681 | zerr = deflate(&(http->stream), Z_FINISH); | |
3682 | ||
3683 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3684 | if (http->wused == sizeof(http->wbuffer)) | |
3685 | httpFlushWrite(http); | |
3686 | } | |
3687 | while (zerr == Z_OK); | |
3688 | ||
3689 | deflateEnd(&(http->stream)); | |
3690 | ||
3691 | if (http->wused) | |
3692 | httpFlushWrite(http); | |
3693 | break; | |
3694 | ||
3695 | case _HTTP_CODING_INFLATE : | |
3696 | case _HTTP_CODING_GUNZIP : | |
3697 | inflateEnd(&(http->stream)); | |
0fa6c7fa MS |
3698 | free(http->dbuffer); |
3699 | http->dbuffer = NULL; | |
a469f8a5 MS |
3700 | break; |
3701 | ||
3702 | default : | |
3703 | break; | |
3704 | } | |
3705 | ||
3706 | http->coding = _HTTP_CODING_IDENTITY; | |
3707 | } | |
3708 | ||
3709 | ||
3710 | /* | |
3711 | * 'http_content_coding_start()' - Start doing content encoding. | |
3712 | */ | |
3713 | ||
3714 | static void | |
3715 | http_content_coding_start( | |
3716 | http_t *http, /* I - HTTP connection */ | |
3717 | const char *value) /* I - Value of Content-Encoding */ | |
3718 | { | |
3719 | int zerr; /* Error/status */ | |
3720 | _http_coding_t coding; /* Content coding value */ | |
3721 | ||
3722 | ||
3723 | DEBUG_printf(("http_content_coding_start(http=%p, value=\"%s\")", http, | |
3724 | value)); | |
3725 | ||
3726 | if (http->coding != _HTTP_CODING_IDENTITY) | |
3727 | { | |
3728 | DEBUG_printf(("1http_content_coding_start: http->coding already %d.", | |
3729 | http->coding)); | |
3730 | return; | |
3731 | } | |
3732 | else if (!strcmp(value, "x-gzip") || !strcmp(value, "gzip")) | |
3733 | { | |
cb7f98ee MS |
3734 | if (http->state == HTTP_STATE_GET_SEND || |
3735 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3736 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_GZIP : |
3737 | _HTTP_CODING_GUNZIP; | |
cb7f98ee MS |
3738 | else if (http->state == HTTP_STATE_POST_RECV || |
3739 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3740 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_GZIP : |
3741 | _HTTP_CODING_GUNZIP; | |
3742 | else | |
3743 | { | |
3744 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3745 | return; | |
3746 | } | |
3747 | } | |
3748 | else if (!strcmp(value, "x-deflate") || !strcmp(value, "deflate")) | |
3749 | { | |
cb7f98ee MS |
3750 | if (http->state == HTTP_STATE_GET_SEND || |
3751 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3752 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_DEFLATE : |
3753 | _HTTP_CODING_INFLATE; | |
cb7f98ee MS |
3754 | else if (http->state == HTTP_STATE_POST_RECV || |
3755 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3756 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_DEFLATE : |
3757 | _HTTP_CODING_INFLATE; | |
3758 | else | |
3759 | { | |
3760 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3761 | return; | |
3762 | } | |
3763 | } | |
3764 | else | |
3765 | { | |
3766 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3767 | return; | |
3768 | } | |
3769 | ||
3770 | memset(&(http->stream), 0, sizeof(http->stream)); | |
3771 | ||
3772 | switch (coding) | |
3773 | { | |
3774 | case _HTTP_CODING_DEFLATE : | |
3775 | case _HTTP_CODING_GZIP : | |
3776 | if (http->wused) | |
3777 | httpFlushWrite(http); | |
3778 | ||
db8b865d MS |
3779 | /* |
3780 | * Window size for compression is 11 bits - optimal based on PWG Raster | |
3781 | * sample files on pwg.org. -11 is raw deflate, 27 is gzip, per ZLIB | |
3782 | * documentation. | |
3783 | */ | |
3784 | ||
a469f8a5 MS |
3785 | if ((zerr = deflateInit2(&(http->stream), Z_DEFAULT_COMPRESSION, |
3786 | Z_DEFLATED, | |
db8b865d | 3787 | coding == _HTTP_CODING_DEFLATE ? -11 : 27, 7, |
a469f8a5 MS |
3788 | Z_DEFAULT_STRATEGY)) < Z_OK) |
3789 | { | |
cb7f98ee | 3790 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3791 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3792 | return; | |
3793 | } | |
3794 | break; | |
3795 | ||
3796 | case _HTTP_CODING_INFLATE : | |
3797 | case _HTTP_CODING_GUNZIP : | |
0fa6c7fa | 3798 | if ((http->dbuffer = malloc(HTTP_MAX_BUFFER)) == NULL) |
a469f8a5 | 3799 | { |
cb7f98ee | 3800 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa | 3801 | http->error = errno; |
a469f8a5 MS |
3802 | return; |
3803 | } | |
0fa6c7fa | 3804 | |
db8b865d MS |
3805 | /* |
3806 | * Window size for decompression is up to 15 bits (maximum supported). | |
3807 | * -15 is raw inflate, 31 is gunzip, per ZLIB documentation. | |
3808 | */ | |
3809 | ||
0fa6c7fa | 3810 | if ((zerr = inflateInit2(&(http->stream), |
db8b865d | 3811 | coding == _HTTP_CODING_INFLATE ? -15 : 31)) |
0fa6c7fa MS |
3812 | < Z_OK) |
3813 | { | |
3814 | free(http->dbuffer); | |
3815 | http->dbuffer = NULL; | |
cb7f98ee | 3816 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa MS |
3817 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3818 | return; | |
3819 | } | |
3820 | ||
3821 | http->stream.avail_in = 0; | |
3822 | http->stream.next_in = http->dbuffer; | |
a469f8a5 MS |
3823 | break; |
3824 | ||
3825 | default : | |
3826 | break; | |
3827 | } | |
3828 | ||
3829 | http->coding = coding; | |
3830 | ||
3831 | DEBUG_printf(("1http_content_coding_start: http->coding now %d.", | |
3832 | http->coding)); | |
3833 | } | |
3834 | #endif /* HAVE_LIBZ */ | |
3835 | ||
3836 | ||
db8b865d MS |
3837 | /* |
3838 | * 'http_create()' - Create an unconnected HTTP connection. | |
3839 | */ | |
3840 | ||
3841 | static http_t * /* O - HTTP connection */ | |
3842 | http_create( | |
3843 | const char *host, /* I - Hostname */ | |
3844 | int port, /* I - Port number */ | |
3845 | http_addrlist_t *addrlist, /* I - Address list or NULL */ | |
3846 | int family, /* I - Address family or AF_UNSPEC */ | |
3847 | http_encryption_t encryption, /* I - Encryption to use */ | |
3848 | int blocking, /* I - 1 for blocking mode */ | |
3849 | _http_mode_t mode) /* I - _HTTP_MODE_CLIENT or _SERVER */ | |
3850 | { | |
3851 | http_t *http; /* New HTTP connection */ | |
3852 | char service[255]; /* Service name */ | |
3853 | http_addrlist_t *myaddrlist = NULL; /* My address list */ | |
3854 | ||
3855 | ||
3856 | DEBUG_printf(("4http_create(host=\"%s\", port=%d, addrlist=%p, family=%d, " | |
3857 | "encryption=%d, blocking=%d, mode=%d)", host, port, addrlist, | |
3858 | family, encryption, blocking, mode)); | |
3859 | ||
3860 | if (!host && mode == _HTTP_MODE_CLIENT) | |
3861 | return (NULL); | |
3862 | ||
3863 | httpInitialize(); | |
3864 | ||
3865 | /* | |
3866 | * Lookup the host... | |
3867 | */ | |
3868 | ||
3869 | if (addrlist) | |
3870 | { | |
3871 | myaddrlist = httpAddrCopyList(addrlist); | |
3872 | } | |
3873 | else | |
3874 | { | |
3875 | snprintf(service, sizeof(service), "%d", port); | |
3876 | ||
3877 | myaddrlist = httpAddrGetList(host, family, service); | |
3878 | } | |
3879 | ||
3880 | if (!myaddrlist) | |
3881 | return (NULL); | |
3882 | ||
3883 | /* | |
3884 | * Allocate memory for the structure... | |
3885 | */ | |
3886 | ||
3887 | if ((http = calloc(sizeof(http_t), 1)) == NULL) | |
3888 | { | |
cb7f98ee | 3889 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); |
db8b865d MS |
3890 | httpAddrFreeList(addrlist); |
3891 | return (NULL); | |
3892 | } | |
3893 | ||
3894 | /* | |
3895 | * Initialize the HTTP data... | |
3896 | */ | |
3897 | ||
3898 | http->mode = mode; | |
3899 | http->activity = time(NULL); | |
3900 | http->addrlist = myaddrlist; | |
3901 | http->blocking = blocking; | |
3902 | http->fd = -1; | |
3903 | #ifdef HAVE_GSSAPI | |
3904 | http->gssctx = GSS_C_NO_CONTEXT; | |
3905 | http->gssname = GSS_C_NO_NAME; | |
3906 | #endif /* HAVE_GSSAPI */ | |
cb7f98ee | 3907 | http->status = HTTP_STATUS_CONTINUE; |
db8b865d MS |
3908 | http->version = HTTP_VERSION_1_1; |
3909 | ||
3910 | if (host) | |
3911 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
3912 | ||
3913 | if (port == 443) /* Always use encryption for https */ | |
3914 | http->encryption = HTTP_ENCRYPTION_ALWAYS; | |
3915 | else | |
3916 | http->encryption = encryption; | |
3917 | ||
3918 | http_set_wait(http); | |
3919 | ||
3920 | /* | |
3921 | * Return the new structure... | |
3922 | */ | |
3923 | ||
3924 | return (http); | |
3925 | } | |
3926 | ||
db8b865d | 3927 | |
ae71f5de MS |
3928 | #ifdef DEBUG |
3929 | /* | |
3930 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
3931 | */ | |
3932 | ||
3933 | static void | |
3934 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
3935 | const char *buffer, /* I - Buffer to dump */ | |
3936 | int bytes) /* I - Bytes to dump */ | |
3937 | { | |
3938 | int i, j, /* Looping vars */ | |
3939 | ch; /* Current character */ | |
3940 | char line[255], /* Line buffer */ | |
3941 | *start, /* Start of line after prefix */ | |
3942 | *ptr; /* Pointer into line */ | |
3943 | ||
3944 | ||
f11a948a | 3945 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
3946 | return; |
3947 | ||
83e08001 | 3948 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 3949 | |
f11a948a | 3950 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
3951 | start = line + strlen(line); |
3952 | ||
3953 | for (i = 0; i < bytes; i += 16) | |
3954 | { | |
3955 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
3956 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
3957 | ||
3958 | while (j < 16) | |
3959 | { | |
5a9febac | 3960 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3961 | ptr += 2; |
3962 | j ++; | |
3963 | } | |
3964 | ||
5a9febac | 3965 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3966 | ptr += 2; |
3967 | ||
3968 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
3969 | { | |
3970 | ch = buffer[i + j] & 255; | |
3971 | ||
3972 | if (ch < ' ' || ch >= 127) | |
3973 | ch = '.'; | |
3974 | ||
3975 | *ptr++ = ch; | |
3976 | } | |
3977 | ||
3978 | *ptr = '\0'; | |
3979 | DEBUG_puts(line); | |
3980 | } | |
3981 | } | |
3982 | #endif /* DEBUG */ | |
3983 | ||
3984 | ||
0fa6c7fa MS |
3985 | /* |
3986 | * 'http_read()' - Read a buffer from a HTTP connection. | |
3987 | * | |
3988 | * This function does the low-level read from the socket, retrying and timing | |
3989 | * out as needed. | |
3990 | */ | |
3991 | ||
3992 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 3993 | http_read(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
3994 | char *buffer, /* I - Buffer */ |
3995 | size_t length) /* I - Maximum bytes to read */ | |
3996 | { | |
3997 | ssize_t bytes; /* Bytes read */ | |
3998 | ||
3999 | ||
4000 | DEBUG_printf(("http_read(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, | |
4001 | buffer, CUPS_LLCAST length)); | |
4002 | ||
4003 | if (!http->blocking) | |
4004 | { | |
4005 | while (!httpWait(http, http->wait_value)) | |
4006 | { | |
4007 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4008 | continue; | |
4009 | ||
4010 | DEBUG_puts("2http_read: Timeout."); | |
4011 | return (0); | |
4012 | } | |
4013 | } | |
4014 | ||
4015 | DEBUG_printf(("2http_read: Reading %d bytes into buffer.", (int)length)); | |
4016 | ||
4017 | do | |
4018 | { | |
4019 | #ifdef HAVE_SSL | |
4020 | if (http->tls) | |
2c85b752 | 4021 | bytes = http_tls_read(http, buffer, length); |
0fa6c7fa MS |
4022 | else |
4023 | #endif /* HAVE_SSL */ | |
4024 | bytes = recv(http->fd, buffer, length, 0); | |
4025 | ||
4026 | if (bytes < 0) | |
4027 | { | |
4028 | #ifdef WIN32 | |
4029 | if (WSAGetLastError() != WSAEINTR) | |
4030 | { | |
4031 | http->error = WSAGetLastError(); | |
4032 | return (-1); | |
4033 | } | |
4034 | else if (WSAGetLastError() == WSAEWOULDBLOCK) | |
4035 | { | |
4036 | if (!http->timeout_cb || | |
4037 | !(*http->timeout_cb)(http, http->timeout_data)) | |
4038 | { | |
4039 | http->error = WSAEWOULDBLOCK; | |
4040 | return (-1); | |
4041 | } | |
4042 | } | |
4043 | #else | |
4044 | DEBUG_printf(("2http_read: %s", strerror(errno))); | |
4045 | ||
4046 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
4047 | { | |
4048 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
4049 | { | |
4050 | http->error = errno; | |
4051 | return (-1); | |
4052 | } | |
4053 | else if (!http->timeout_cb && errno != EAGAIN) | |
4054 | { | |
4055 | http->error = errno; | |
4056 | return (-1); | |
4057 | } | |
4058 | } | |
4059 | else if (errno != EINTR) | |
4060 | { | |
4061 | http->error = errno; | |
4062 | return (-1); | |
4063 | } | |
4064 | #endif /* WIN32 */ | |
4065 | } | |
4066 | } | |
4067 | while (bytes < 0); | |
4068 | ||
4069 | DEBUG_printf(("2http_read: Read " CUPS_LLFMT " bytes into buffer.", | |
4070 | CUPS_LLCAST bytes)); | |
4071 | #ifdef DEBUG | |
4072 | if (bytes > 0) | |
6961465f | 4073 | http_debug_hex("http_read", buffer, (int)bytes); |
0fa6c7fa MS |
4074 | #endif /* DEBUG */ |
4075 | ||
4076 | if (bytes < 0) | |
4077 | { | |
4078 | #ifdef WIN32 | |
4079 | if (WSAGetLastError() == WSAEINTR) | |
4080 | bytes = 0; | |
4081 | else | |
4082 | http->error = WSAGetLastError(); | |
4083 | #else | |
4084 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) | |
4085 | bytes = 0; | |
4086 | else | |
4087 | http->error = errno; | |
4088 | #endif /* WIN32 */ | |
4089 | } | |
4090 | else if (bytes == 0) | |
4091 | { | |
4092 | http->error = EPIPE; | |
4093 | return (0); | |
4094 | } | |
4095 | ||
4096 | return (bytes); | |
4097 | } | |
4098 | ||
4099 | ||
4100 | /* | |
4101 | * 'http_read_buffered()' - Do a buffered read from a HTTP connection. | |
4102 | * | |
4103 | * This function reads data from the HTTP buffer or from the socket, as needed. | |
4104 | */ | |
4105 | ||
4106 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4107 | http_read_buffered(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4108 | char *buffer, /* I - Buffer */ |
4109 | size_t length) /* I - Maximum bytes to read */ | |
4110 | { | |
4111 | ssize_t bytes; /* Bytes read */ | |
4112 | ||
4113 | ||
4114 | DEBUG_printf(("http_read_buffered(http=%p, buffer=%p, length=" CUPS_LLFMT | |
4115 | ") used=%d", | |
4116 | http, buffer, CUPS_LLCAST length, http->used)); | |
4117 | ||
4118 | if (http->used > 0) | |
4119 | { | |
4120 | if (length > (size_t)http->used) | |
4121 | bytes = (size_t)http->used; | |
4122 | else | |
4123 | bytes = length; | |
4124 | ||
4125 | DEBUG_printf(("2http_read: Grabbing %d bytes from input buffer.", | |
4126 | (int)bytes)); | |
4127 | ||
4128 | memcpy(buffer, http->buffer, bytes); | |
4129 | http->used -= (int)bytes; | |
4130 | ||
4131 | if (http->used > 0) | |
4132 | memmove(http->buffer, http->buffer + bytes, http->used); | |
4133 | } | |
4134 | else | |
4135 | bytes = http_read(http, buffer, length); | |
4136 | ||
4137 | return (bytes); | |
4138 | } | |
4139 | ||
4140 | ||
4141 | /* | |
4142 | * 'http_read_chunk()' - Read a chunk from a HTTP connection. | |
4143 | * | |
4144 | * This function reads and validates the chunk length, then does a buffered read | |
4145 | * returning the number of bytes placed in the buffer. | |
4146 | */ | |
4147 | ||
4148 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4149 | http_read_chunk(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4150 | char *buffer, /* I - Buffer */ |
4151 | size_t length) /* I - Maximum bytes to read */ | |
4152 | { | |
4153 | DEBUG_printf(("http_read_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
4154 | http, buffer, CUPS_LLCAST length)); | |
4155 | ||
4156 | if (http->data_remaining <= 0) | |
4157 | { | |
4158 | char len[32]; /* Length string */ | |
4159 | ||
4160 | if (!httpGets(len, sizeof(len), http)) | |
4161 | { | |
4162 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4163 | return (0); | |
4164 | } | |
4165 | ||
4166 | if (!len[0]) | |
4167 | { | |
4168 | DEBUG_puts("1http_read_chunk: Blank chunk length, trying again..."); | |
4169 | if (!httpGets(len, sizeof(len), http)) | |
4170 | { | |
4171 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4172 | return (0); | |
4173 | } | |
4174 | } | |
4175 | ||
4176 | http->data_remaining = strtoll(len, NULL, 16); | |
4177 | ||
4178 | if (http->data_remaining < 0) | |
4179 | { | |
4180 | DEBUG_printf(("1http_read_chunk: Negative chunk length \"%s\" (" | |
4181 | CUPS_LLFMT ")", len, CUPS_LLCAST http->data_remaining)); | |
4182 | return (0); | |
4183 | } | |
4184 | ||
4185 | DEBUG_printf(("2http_read_chunk: Got chunk length \"%s\" (" CUPS_LLFMT ")", | |
4186 | len, CUPS_LLCAST http->data_remaining)); | |
4187 | ||
4188 | if (http->data_remaining == 0) | |
4189 | { | |
4190 | /* | |
4191 | * 0-length chunk, grab trailing blank line... | |
4192 | */ | |
4193 | ||
4194 | httpGets(len, sizeof(len), http); | |
4195 | } | |
4196 | } | |
4197 | ||
4198 | DEBUG_printf(("2http_read_chunk: data_remaining=" CUPS_LLFMT, | |
4199 | CUPS_LLCAST http->data_remaining)); | |
4200 | ||
4201 | if (http->data_remaining <= 0) | |
4202 | return (0); | |
4203 | else if (length > (size_t)http->data_remaining) | |
4204 | length = (size_t)http->data_remaining; | |
4205 | ||
4206 | return (http_read_buffered(http, buffer, length)); | |
4207 | } | |
4208 | ||
4209 | ||
ef416fc2 | 4210 | /* |
4211 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
4212 | */ | |
4213 | ||
a469f8a5 | 4214 | static int /* O - 0 on success, non-zero on error */ |
e6b1a6a9 | 4215 | http_send(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
4216 | http_state_t request, /* I - Request code */ |
4217 | const char *uri) /* I - URI */ | |
ef416fc2 | 4218 | { |
a469f8a5 MS |
4219 | int i; /* Looping var */ |
4220 | char buf[1024]; /* Encoded URI buffer */ | |
4221 | const char *value; /* Field value */ | |
4222 | static const char * const codes[] = /* Request code strings */ | |
4223 | { | |
ef416fc2 | 4224 | NULL, |
4225 | "OPTIONS", | |
4226 | "GET", | |
4227 | NULL, | |
4228 | "HEAD", | |
4229 | "POST", | |
4230 | NULL, | |
4231 | NULL, | |
4232 | "PUT", | |
4233 | NULL, | |
4234 | "DELETE", | |
4235 | "TRACE", | |
a469f8a5 MS |
4236 | "CLOSE", |
4237 | NULL, | |
4238 | NULL | |
ef416fc2 | 4239 | }; |
ef416fc2 | 4240 | |
4241 | ||
cb7f98ee | 4242 | DEBUG_printf(("4http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 4243 | http, codes[request], uri)); |
4244 | ||
4245 | if (http == NULL || uri == NULL) | |
4246 | return (-1); | |
4247 | ||
4248 | /* | |
4249 | * Set the User-Agent field if it isn't already... | |
4250 | */ | |
4251 | ||
4252 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
db8b865d MS |
4253 | { |
4254 | if (http->default_user_agent) | |
4255 | httpSetField(http, HTTP_FIELD_USER_AGENT, http->default_user_agent); | |
4256 | else | |
4257 | httpSetField(http, HTTP_FIELD_USER_AGENT, cupsUserAgent()); | |
4258 | } | |
ef416fc2 | 4259 | |
a469f8a5 MS |
4260 | /* |
4261 | * Set the Accept-Encoding field if it isn't already... | |
4262 | */ | |
4263 | ||
c1420c87 MS |
4264 | if (!http->accept_encoding && http->default_accept_encoding) |
4265 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, | |
4266 | http->default_accept_encoding); | |
a469f8a5 | 4267 | |
ef416fc2 | 4268 | /* |
4269 | * Encode the URI as needed... | |
4270 | */ | |
4271 | ||
839a51c8 | 4272 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 4273 | |
4274 | /* | |
4275 | * See if we had an error the last time around; if so, reconnect... | |
4276 | */ | |
4277 | ||
cb7f98ee MS |
4278 | if (http->fd < 0 || http->status == HTTP_STATUS_ERROR || |
4279 | http->status >= HTTP_STATUS_BAD_REQUEST) | |
4280 | { | |
4281 | DEBUG_printf(("5http_send: Reconnecting, fd=%d, status=%d, tls_upgrade=%d", | |
4282 | http->fd, http->status, http->tls_upgrade)); | |
4283 | ||
4284 | if (httpReconnect2(http, 30000, NULL)) | |
fa73b229 | 4285 | return (-1); |
cb7f98ee | 4286 | } |
ef416fc2 | 4287 | |
d09495fa | 4288 | /* |
4289 | * Flush any written data that is pending... | |
4290 | */ | |
4291 | ||
4292 | if (http->wused) | |
536bc2c6 MS |
4293 | { |
4294 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 4295 | if (httpReconnect2(http, 30000, NULL)) |
536bc2c6 MS |
4296 | return (-1); |
4297 | } | |
d09495fa | 4298 | |
ef416fc2 | 4299 | /* |
4300 | * Send the request header... | |
4301 | */ | |
4302 | ||
d09495fa | 4303 | http->state = request; |
a469f8a5 | 4304 | http->data_encoding = HTTP_ENCODING_FIELDS; |
d09495fa | 4305 | |
cb7f98ee | 4306 | if (request == HTTP_STATE_POST || request == HTTP_STATE_PUT) |
ef416fc2 | 4307 | http->state ++; |
4308 | ||
cb7f98ee | 4309 | http->status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 4310 | |
4311 | #ifdef HAVE_SSL | |
cb7f98ee | 4312 | if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) |
ef416fc2 | 4313 | { |
4314 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
a469f8a5 | 4315 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4316 | } |
4317 | #endif /* HAVE_SSL */ | |
4318 | ||
4319 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
4320 | { | |
cb7f98ee | 4321 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4322 | return (-1); |
4323 | } | |
4324 | ||
4325 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
a469f8a5 | 4326 | if ((value = httpGetField(http, i)) != NULL && *value) |
ef416fc2 | 4327 | { |
cb7f98ee | 4328 | DEBUG_printf(("5http_send: %s: %s", http_fields[i], value)); |
ef416fc2 | 4329 | |
37e7e6e0 MS |
4330 | if (i == HTTP_FIELD_HOST) |
4331 | { | |
a469f8a5 MS |
4332 | if (httpPrintf(http, "Host: %s:%d\r\n", value, |
4333 | httpAddrPort(http->hostaddr)) < 1) | |
37e7e6e0 | 4334 | { |
cb7f98ee | 4335 | http->status = HTTP_STATUS_ERROR; |
37e7e6e0 MS |
4336 | return (-1); |
4337 | } | |
4338 | } | |
a469f8a5 | 4339 | else if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) |
ef416fc2 | 4340 | { |
cb7f98ee | 4341 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4342 | return (-1); |
4343 | } | |
4344 | } | |
4345 | ||
4346 | if (http->cookie) | |
4347 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
4348 | { | |
cb7f98ee | 4349 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4350 | return (-1); |
4351 | } | |
4352 | ||
cb7f98ee MS |
4353 | DEBUG_printf(("5http_send: expect=%d, mode=%d, state=%d", http->expect, |
4354 | http->mode, http->state)); | |
4355 | ||
4356 | if (http->expect == HTTP_STATUS_CONTINUE && http->mode == _HTTP_MODE_CLIENT && | |
4357 | (http->state == HTTP_STATE_POST_RECV || | |
4358 | http->state == HTTP_STATE_PUT_RECV)) | |
b423cd4c | 4359 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) |
4360 | { | |
cb7f98ee | 4361 | http->status = HTTP_STATUS_ERROR; |
b423cd4c | 4362 | return (-1); |
4363 | } | |
4364 | ||
ef416fc2 | 4365 | if (httpPrintf(http, "\r\n") < 1) |
4366 | { | |
cb7f98ee | 4367 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4368 | return (-1); |
4369 | } | |
4370 | ||
536bc2c6 MS |
4371 | if (httpFlushWrite(http) < 0) |
4372 | return (-1); | |
4373 | ||
a469f8a5 | 4374 | http_set_length(http); |
ef416fc2 | 4375 | httpClearFields(http); |
4376 | ||
f7deaa1a | 4377 | /* |
b94498cf | 4378 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 4379 | */ |
4380 | ||
ef55b745 MS |
4381 | if (http->field_authorization && http->authstring && |
4382 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 4383 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 4384 | { |
4385 | http->_authstring[0] = '\0'; | |
4386 | ||
4387 | if (http->authstring != http->_authstring) | |
4388 | free(http->authstring); | |
ef55b745 | 4389 | |
f7deaa1a | 4390 | http->authstring = http->_authstring; |
4391 | } | |
4392 | ||
ef416fc2 | 4393 | return (0); |
4394 | } | |
4395 | ||
4396 | ||
a469f8a5 MS |
4397 | /* |
4398 | * 'http_set_length()' - Set the data_encoding and data_remaining values. | |
4399 | */ | |
4400 | ||
4401 | static off_t /* O - Remainder or -1 on error */ | |
4402 | http_set_length(http_t *http) /* I - Connection */ | |
4403 | { | |
4404 | off_t remaining; /* Remainder */ | |
4405 | ||
4406 | ||
4407 | DEBUG_printf(("http_set_length(http=%p) mode=%d state=%s", http, http->mode, | |
48bd1142 | 4408 | httpStateString(http->state))); |
a469f8a5 MS |
4409 | |
4410 | if ((remaining = httpGetLength2(http)) >= 0) | |
4411 | { | |
4412 | if (http->mode == _HTTP_MODE_SERVER && | |
4413 | http->state != HTTP_STATE_GET_SEND && | |
c41769ff | 4414 | http->state != HTTP_STATE_PUT && |
a469f8a5 MS |
4415 | http->state != HTTP_STATE_POST && |
4416 | http->state != HTTP_STATE_POST_SEND) | |
4417 | { | |
4418 | DEBUG_puts("1http_set_length: Not setting data_encoding/remaining."); | |
4419 | return (remaining); | |
4420 | } | |
4421 | ||
4422 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], | |
4423 | "chunked")) | |
4424 | { | |
4425 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4426 | "HTTP_ENCODING_CHUNKED."); | |
4427 | http->data_encoding = HTTP_ENCODING_CHUNKED; | |
4428 | } | |
4429 | else | |
4430 | { | |
4431 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4432 | "HTTP_ENCODING_LENGTH."); | |
4433 | http->data_encoding = HTTP_ENCODING_LENGTH; | |
4434 | } | |
4435 | ||
4436 | DEBUG_printf(("1http_set_length: Setting data_remaining to " CUPS_LLFMT ".", | |
4437 | CUPS_LLCAST remaining)); | |
4438 | http->data_remaining = remaining; | |
4439 | ||
4440 | if (remaining <= INT_MAX) | |
4441 | http->_data_remaining = remaining; | |
4442 | else | |
4443 | http->_data_remaining = INT_MAX; | |
4444 | } | |
4445 | ||
4446 | return (remaining); | |
4447 | } | |
4448 | ||
85dda01c MS |
4449 | /* |
4450 | * 'http_set_timeout()' - Set the socket timeout values. | |
4451 | */ | |
4452 | ||
4453 | static void | |
4454 | http_set_timeout(int fd, /* I - File descriptor */ | |
4455 | double timeout) /* I - Timeout in seconds */ | |
4456 | { | |
4457 | #ifdef WIN32 | |
4458 | DWORD tv = (DWORD)(timeout * 1000); | |
4459 | /* Timeout in milliseconds */ | |
4460 | ||
db8b865d MS |
4461 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4462 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4463 | |
4464 | #else | |
4465 | struct timeval tv; /* Timeout in secs and usecs */ | |
4466 | ||
4467 | tv.tv_sec = (int)timeout; | |
4468 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
4469 | ||
db8b865d MS |
4470 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4471 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4472 | #endif /* WIN32 */ |
4473 | } | |
4474 | ||
4475 | ||
4476 | /* | |
4477 | * 'http_set_wait()' - Set the default wait value for reads. | |
4478 | */ | |
4479 | ||
4480 | static void | |
e6b1a6a9 | 4481 | http_set_wait(http_t *http) /* I - HTTP connection */ |
85dda01c MS |
4482 | { |
4483 | if (http->blocking) | |
4484 | { | |
4485 | http->wait_value = (int)(http->timeout_value * 1000); | |
4486 | ||
4487 | if (http->wait_value <= 0) | |
4488 | http->wait_value = 60000; | |
4489 | } | |
4490 | else | |
4491 | http->wait_value = 10000; | |
4492 | } | |
4493 | ||
4494 | ||
9b66acc5 | 4495 | #ifdef HAVE_SSL |
ef416fc2 | 4496 | /* |
2c85b752 | 4497 | * 'http_tls_upgrade()' - Force upgrade to TLS encryption. |
ef416fc2 | 4498 | */ |
4499 | ||
89d46774 | 4500 | static int /* O - Status of connection */ |
2c85b752 | 4501 | http_tls_upgrade(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 4502 | { |
89d46774 | 4503 | int ret; /* Return value */ |
4504 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4505 | |
4506 | ||
2c85b752 | 4507 | DEBUG_printf(("7http_tls_upgrade(%p)", http)); |
ef416fc2 | 4508 | |
85b5d1df MS |
4509 | /* |
4510 | * Flush the connection to make sure any previous "Upgrade" message | |
4511 | * has been read. | |
4512 | */ | |
4513 | ||
4514 | httpFlush(http); | |
4515 | ||
ef416fc2 | 4516 | /* |
4517 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4518 | * request without interfering with the existing request data... | |
4519 | */ | |
4520 | ||
4521 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4522 | ||
4523 | /* | |
4524 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4525 | * encryption on the link... | |
4526 | */ | |
4527 | ||
cb7f98ee | 4528 | http->tls_upgrade = 1; |
f7deaa1a | 4529 | http->field_authorization = NULL; /* Don't free the auth string */ |
4530 | ||
b86bc4cf | 4531 | httpClearFields(http); |
4532 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
a469f8a5 | 4533 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4534 | |
b86bc4cf | 4535 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4536 | { |
4537 | /* | |
4538 | * Wait for the secure connection... | |
4539 | */ | |
4540 | ||
cb7f98ee | 4541 | while (httpUpdate(http) == HTTP_STATUS_CONTINUE); |
ef416fc2 | 4542 | } |
4543 | ||
ef416fc2 | 4544 | /* |
b86bc4cf | 4545 | * Restore the HTTP request data... |
ef416fc2 | 4546 | */ |
4547 | ||
b86bc4cf | 4548 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4549 | http->data_encoding = myhttp.data_encoding; |
4550 | http->data_remaining = myhttp.data_remaining; | |
4551 | http->_data_remaining = myhttp._data_remaining; | |
4552 | http->expect = myhttp.expect; | |
4553 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4554 | http->digest_tries = myhttp.digest_tries; |
cb7f98ee | 4555 | http->tls_upgrade = 0; |
ef416fc2 | 4556 | |
4557 | /* | |
4558 | * See if we actually went secure... | |
4559 | */ | |
4560 | ||
4561 | if (!http->tls) | |
4562 | { | |
4563 | /* | |
4564 | * Server does not support HTTP upgrade... | |
4565 | */ | |
4566 | ||
2c85b752 | 4567 | DEBUG_puts("8http_tls_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4568 | |
87e98392 | 4569 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 4570 | |
4571 | http->fd = -1; | |
4572 | ||
4573 | return (-1); | |
4574 | } | |
4575 | else | |
4576 | return (ret); | |
4577 | } | |
4578 | #endif /* HAVE_SSL */ | |
4579 | ||
4580 | ||
ef416fc2 | 4581 | /* |
4582 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4583 | */ | |
ef55b745 | 4584 | |
0fa6c7fa | 4585 | static ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 4586 | http_write(http_t *http, /* I - HTTP connection */ |
f11a948a | 4587 | const char *buffer, /* I - Buffer for data */ |
0fa6c7fa | 4588 | size_t length) /* I - Number of bytes to write */ |
ef416fc2 | 4589 | { |
0fa6c7fa MS |
4590 | ssize_t tbytes, /* Total bytes sent */ |
4591 | bytes; /* Bytes sent */ | |
ef416fc2 | 4592 | |
4593 | ||
0fa6c7fa MS |
4594 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
4595 | buffer, CUPS_LLCAST length)); | |
f11a948a MS |
4596 | http->error = 0; |
4597 | tbytes = 0; | |
ef416fc2 | 4598 | |
4599 | while (length > 0) | |
4600 | { | |
12f89d24 MS |
4601 | DEBUG_printf(("3http_write: About to write %d bytes.", (int)length)); |
4602 | ||
85dda01c MS |
4603 | if (http->timeout_cb) |
4604 | { | |
4605 | #ifdef HAVE_POLL | |
4606 | struct pollfd pfd; /* Polled file descriptor */ | |
4607 | #else | |
4608 | fd_set output_set; /* Output ready for write? */ | |
4609 | struct timeval timeout; /* Timeout value */ | |
4610 | #endif /* HAVE_POLL */ | |
4611 | int nfds; /* Result from select()/poll() */ | |
4612 | ||
4613 | do | |
4614 | { | |
4615 | #ifdef HAVE_POLL | |
4616 | pfd.fd = http->fd; | |
4617 | pfd.events = POLLOUT; | |
4618 | ||
4619 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
82cc1f9a MS |
4620 | (errno == EINTR || errno == EAGAIN)) |
4621 | /* do nothing */; | |
85dda01c MS |
4622 | |
4623 | #else | |
4624 | do | |
4625 | { | |
4626 | FD_ZERO(&output_set); | |
4627 | FD_SET(http->fd, &output_set); | |
4628 | ||
4629 | timeout.tv_sec = http->wait_value / 1000; | |
4630 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4631 | ||
4632 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4633 | } | |
4634 | # ifdef WIN32 | |
4635 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4636 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4637 | # else | |
4638 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4639 | # endif /* WIN32 */ | |
4640 | #endif /* HAVE_POLL */ | |
4641 | ||
4642 | if (nfds < 0) | |
4643 | { | |
4644 | http->error = errno; | |
4645 | return (-1); | |
4646 | } | |
4647 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
4648 | { | |
4649 | #ifdef WIN32 | |
83e08001 | 4650 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4651 | #else |
4652 | http->error = EWOULDBLOCK; | |
4653 | #endif /* WIN32 */ | |
4654 | return (-1); | |
4655 | } | |
4656 | } | |
4657 | while (nfds <= 0); | |
4658 | } | |
4659 | ||
ef416fc2 | 4660 | #ifdef HAVE_SSL |
4661 | if (http->tls) | |
2c85b752 | 4662 | bytes = http_tls_write(http, buffer, length); |
ef416fc2 | 4663 | else |
4664 | #endif /* HAVE_SSL */ | |
4665 | bytes = send(http->fd, buffer, length, 0); | |
4666 | ||
0fa6c7fa MS |
4667 | DEBUG_printf(("3http_write: Write of " CUPS_LLFMT " bytes returned " |
4668 | CUPS_LLFMT ".", CUPS_LLCAST length, CUPS_LLCAST bytes)); | |
12f89d24 | 4669 | |
ef416fc2 | 4670 | if (bytes < 0) |
4671 | { | |
4672 | #ifdef WIN32 | |
10d09e33 | 4673 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4674 | continue; |
10d09e33 MS |
4675 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4676 | { | |
4677 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4678 | continue; | |
4679 | ||
4680 | http->error = WSAGetLastError(); | |
4681 | } | |
4682 | else if (WSAGetLastError() != http->error && | |
4683 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4684 | { |
4685 | http->error = WSAGetLastError(); | |
4686 | continue; | |
4687 | } | |
10d09e33 | 4688 | |
ef416fc2 | 4689 | #else |
10d09e33 | 4690 | if (errno == EINTR) |
ef416fc2 | 4691 | continue; |
10d09e33 MS |
4692 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4693 | { | |
4694 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4695 | continue; | |
4696 | else if (!http->timeout_cb && errno == EAGAIN) | |
4697 | continue; | |
4698 | ||
4699 | http->error = errno; | |
4700 | } | |
ef416fc2 | 4701 | else if (errno != http->error && errno != ECONNRESET) |
4702 | { | |
4703 | http->error = errno; | |
4704 | continue; | |
4705 | } | |
4706 | #endif /* WIN32 */ | |
4707 | ||
f8b3a85b MS |
4708 | DEBUG_printf(("3http_write: error writing data (%s).", |
4709 | strerror(http->error))); | |
ef416fc2 | 4710 | |
4711 | return (-1); | |
4712 | } | |
4713 | ||
4714 | buffer += bytes; | |
4715 | tbytes += bytes; | |
4716 | length -= bytes; | |
4717 | } | |
4718 | ||
4719 | #ifdef DEBUG | |
ae71f5de | 4720 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 4721 | #endif /* DEBUG */ |
4722 | ||
0fa6c7fa | 4723 | DEBUG_printf(("3http_write: Returning " CUPS_LLFMT ".", CUPS_LLCAST tbytes)); |
f8b3a85b | 4724 | |
ef416fc2 | 4725 | return (tbytes); |
4726 | } | |
4727 | ||
4728 | ||
4729 | /* | |
4730 | * 'http_write_chunk()' - Write a chunked buffer. | |
4731 | */ | |
4732 | ||
0fa6c7fa | 4733 | static ssize_t /* O - Number bytes written */ |
e6b1a6a9 | 4734 | http_write_chunk(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 4735 | const char *buffer, /* I - Buffer to write */ |
0fa6c7fa | 4736 | size_t length) /* I - Length of buffer */ |
ef416fc2 | 4737 | { |
0fa6c7fa MS |
4738 | char header[16]; /* Chunk header */ |
4739 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 4740 | |
f11a948a | 4741 | |
0fa6c7fa MS |
4742 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
4743 | http, buffer, CUPS_LLCAST length)); | |
ef416fc2 | 4744 | |
4745 | /* | |
4746 | * Write the chunk header, data, and trailer. | |
4747 | */ | |
4748 | ||
0fa6c7fa MS |
4749 | snprintf(header, sizeof(header), "%x\r\n", (unsigned)length); |
4750 | if (http_write(http, header, strlen(header)) < 0) | |
ef416fc2 | 4751 | { |
0fa6c7fa | 4752 | DEBUG_puts("8http_write_chunk: http_write of length failed."); |
ef416fc2 | 4753 | return (-1); |
4754 | } | |
4755 | ||
4756 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4757 | { | |
0fa6c7fa | 4758 | DEBUG_puts("8http_write_chunk: http_write of buffer failed."); |
ef416fc2 | 4759 | return (-1); |
4760 | } | |
4761 | ||
4762 | if (http_write(http, "\r\n", 2) < 0) | |
4763 | { | |
0fa6c7fa | 4764 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed."); |
ef416fc2 | 4765 | return (-1); |
4766 | } | |
4767 | ||
4768 | return (bytes); | |
4769 | } | |
4770 | ||
4771 | ||
ef416fc2 | 4772 | /* |
f2d18633 | 4773 | * End of "$Id$". |
ef416fc2 | 4774 | */ |