]>
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); | |
78 | # ifdef HAVE_LIBSSL | |
79 | # include "tls-openssl.c" | |
80 | # elif defined(HAVE_GNUTLS) | |
81 | # include "tls-gnutls.c" | |
82 | # elif defined(HAVE_CDSASSL) | |
83 | # include "tls-darwin.c" | |
84 | # else | |
85 | # include "tls-sspi.c" | |
86 | # endif /* HAVE_LIBSSL */ | |
ef416fc2 | 87 | #endif /* HAVE_SSL */ |
88 | ||
89 | ||
90 | /* | |
91 | * Local globals... | |
92 | */ | |
93 | ||
94 | static const char * const http_fields[] = | |
95 | { | |
96 | "Accept-Language", | |
97 | "Accept-Ranges", | |
98 | "Authorization", | |
99 | "Connection", | |
100 | "Content-Encoding", | |
101 | "Content-Language", | |
102 | "Content-Length", | |
103 | "Content-Location", | |
104 | "Content-MD5", | |
105 | "Content-Range", | |
106 | "Content-Type", | |
107 | "Content-Version", | |
108 | "Date", | |
109 | "Host", | |
110 | "If-Modified-Since", | |
111 | "If-Unmodified-since", | |
112 | "Keep-Alive", | |
113 | "Last-Modified", | |
114 | "Link", | |
115 | "Location", | |
116 | "Range", | |
117 | "Referer", | |
118 | "Retry-After", | |
119 | "Transfer-Encoding", | |
120 | "Upgrade", | |
121 | "User-Agent", | |
a469f8a5 MS |
122 | "WWW-Authenticate", |
123 | "Accept-Encoding", | |
124 | "Allow", | |
125 | "Server" | |
ef416fc2 | 126 | }; |
127 | ||
128 | ||
a469f8a5 MS |
129 | /* |
130 | * 'httpAcceptConnection()' - Accept a new HTTP client connection from the | |
131 | * specified listening socket. | |
132 | * | |
9c0e8e5d | 133 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
134 | */ |
135 | ||
136 | http_t * /* O - HTTP connection or @code NULL@ */ | |
137 | httpAcceptConnection(int fd, /* I - Listen socket file descriptor */ | |
138 | int blocking) /* I - 1 if the connection should be | |
139 | blocking, 0 otherwise */ | |
140 | { | |
141 | http_t *http; /* HTTP connection */ | |
142 | http_addrlist_t addrlist; /* Dummy address list */ | |
143 | socklen_t addrlen; /* Length of address */ | |
144 | int val; /* Socket option value */ | |
145 | ||
146 | ||
147 | /* | |
148 | * Range check input... | |
149 | */ | |
150 | ||
151 | if (fd < 0) | |
152 | return (NULL); | |
153 | ||
154 | /* | |
155 | * Create the client connection... | |
156 | */ | |
157 | ||
158 | memset(&addrlist, 0, sizeof(addrlist)); | |
159 | ||
db8b865d | 160 | if ((http = http_create(NULL, 0, &addrlist, AF_UNSPEC, |
a469f8a5 MS |
161 | HTTP_ENCRYPTION_IF_REQUESTED, blocking, |
162 | _HTTP_MODE_SERVER)) == NULL) | |
163 | return (NULL); | |
164 | ||
165 | /* | |
166 | * Accept the client and get the remote address... | |
167 | */ | |
168 | ||
169 | addrlen = sizeof(http_addr_t); | |
170 | ||
171 | if ((http->fd = accept(fd, (struct sockaddr *)&(http->addrlist->addr), | |
172 | &addrlen)) < 0) | |
173 | { | |
174 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
175 | httpClose(http); | |
176 | ||
177 | return (NULL); | |
178 | } | |
179 | ||
5ec1fd3d MS |
180 | http->hostaddr = &(http->addrlist->addr); |
181 | ||
182 | if (httpAddrLocalhost(http->hostaddr)) | |
183 | strlcpy(http->hostname, "localhost", sizeof(http->hostname)); | |
184 | else | |
185 | httpAddrString(http->hostaddr, http->hostname, sizeof(http->hostname)); | |
a469f8a5 MS |
186 | |
187 | #ifdef SO_NOSIGPIPE | |
188 | /* | |
189 | * Disable SIGPIPE for this socket. | |
190 | */ | |
191 | ||
192 | val = 1; | |
db8b865d | 193 | setsockopt(http->fd, SOL_SOCKET, SO_NOSIGPIPE, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
194 | #endif /* SO_NOSIGPIPE */ |
195 | ||
196 | /* | |
197 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
198 | * with a slow loopback interface. Since we write large buffers | |
199 | * when sending print files and requests, there shouldn't be any | |
200 | * performance penalty for this... | |
201 | */ | |
202 | ||
203 | val = 1; | |
db8b865d | 204 | setsockopt(http->fd, IPPROTO_TCP, TCP_NODELAY, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
205 | |
206 | #ifdef FD_CLOEXEC | |
207 | /* | |
208 | * Close this socket when starting another process... | |
209 | */ | |
210 | ||
211 | fcntl(http->fd, F_SETFD, FD_CLOEXEC); | |
212 | #endif /* FD_CLOEXEC */ | |
213 | ||
214 | return (http); | |
215 | } | |
216 | ||
217 | ||
7cf5915e MS |
218 | /* |
219 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
220 | * | |
221 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
222 | * | |
f3c17241 | 223 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
224 | */ |
225 | ||
226 | int /* O - 0 on success, -1 on error */ | |
227 | httpAddCredential( | |
228 | cups_array_t *credentials, /* I - Credentials array */ | |
229 | const void *data, /* I - PEM-encoded X.509 data */ | |
230 | size_t datalen) /* I - Length of data */ | |
231 | { | |
232 | http_credential_t *credential; /* Credential data */ | |
233 | ||
234 | ||
235 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
236 | { | |
237 | credential->datalen = datalen; | |
238 | ||
239 | if ((credential->data = malloc(datalen)) != NULL) | |
240 | { | |
241 | memcpy(credential->data, data, datalen); | |
242 | cupsArrayAdd(credentials, credential); | |
243 | return (0); | |
244 | } | |
245 | ||
246 | free(credential); | |
247 | } | |
248 | ||
249 | return (-1); | |
250 | } | |
251 | ||
252 | ||
ecdc0628 | 253 | /* |
254 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
255 | */ | |
256 | ||
257 | void | |
e6b1a6a9 | 258 | httpBlocking(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 259 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
260 | { | |
261 | if (http) | |
85dda01c | 262 | { |
ecdc0628 | 263 | http->blocking = b; |
85dda01c MS |
264 | http_set_wait(http); |
265 | } | |
ecdc0628 | 266 | } |
267 | ||
268 | ||
ef416fc2 | 269 | /* |
270 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
271 | */ | |
272 | ||
ecdc0628 | 273 | int /* O - 0 = no data, 1 = data available */ |
e6b1a6a9 | 274 | httpCheck(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 275 | { |
276 | return (httpWait(http, 0)); | |
277 | } | |
278 | ||
279 | ||
280 | /* | |
281 | * 'httpClearCookie()' - Clear the cookie value(s). | |
282 | * | |
f3c17241 | 283 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 284 | */ |
285 | ||
286 | void | |
e6b1a6a9 | 287 | httpClearCookie(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 288 | { |
289 | if (!http) | |
290 | return; | |
291 | ||
292 | if (http->cookie) | |
293 | { | |
294 | free(http->cookie); | |
295 | http->cookie = NULL; | |
296 | } | |
297 | } | |
298 | ||
299 | ||
ecdc0628 | 300 | /* |
301 | * 'httpClearFields()' - Clear HTTP request fields. | |
302 | */ | |
303 | ||
304 | void | |
e6b1a6a9 | 305 | httpClearFields(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 306 | { |
a469f8a5 MS |
307 | DEBUG_printf(("httpClearFields(http=%p)", http)); |
308 | ||
ecdc0628 | 309 | if (http) |
310 | { | |
311 | memset(http->fields, 0, sizeof(http->fields)); | |
a469f8a5 MS |
312 | |
313 | if (http->mode == _HTTP_MODE_CLIENT) | |
314 | { | |
315 | if (http->hostname[0] == '/') | |
316 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
317 | else | |
318 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
319 | } | |
b423cd4c | 320 | |
f7deaa1a | 321 | if (http->field_authorization) |
322 | { | |
323 | free(http->field_authorization); | |
324 | http->field_authorization = NULL; | |
325 | } | |
326 | ||
a469f8a5 MS |
327 | if (http->accept_encoding) |
328 | { | |
329 | _cupsStrFree(http->accept_encoding); | |
330 | http->accept_encoding = NULL; | |
331 | } | |
332 | ||
333 | if (http->allow) | |
334 | { | |
335 | _cupsStrFree(http->allow); | |
336 | http->allow = NULL; | |
337 | } | |
338 | ||
339 | if (http->server) | |
340 | { | |
341 | _cupsStrFree(http->server); | |
342 | http->server = NULL; | |
343 | } | |
344 | ||
b423cd4c | 345 | http->expect = (http_status_t)0; |
ecdc0628 | 346 | } |
347 | } | |
348 | ||
349 | ||
ef416fc2 | 350 | /* |
6d2f911b | 351 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 352 | */ |
353 | ||
354 | void | |
e6b1a6a9 | 355 | httpClose(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 356 | { |
f7deaa1a | 357 | #ifdef HAVE_GSSAPI |
1f0275e3 | 358 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 359 | #endif /* HAVE_GSSAPI */ |
360 | ||
361 | ||
e07d4801 | 362 | DEBUG_printf(("httpClose(http=%p)", http)); |
ef416fc2 | 363 | |
6d2f911b MS |
364 | /* |
365 | * Range check input... | |
366 | */ | |
367 | ||
ef416fc2 | 368 | if (!http) |
369 | return; | |
370 | ||
6d2f911b MS |
371 | /* |
372 | * Close any open connection... | |
373 | */ | |
374 | ||
375 | _httpDisconnect(http); | |
376 | ||
377 | /* | |
378 | * Free memory used... | |
379 | */ | |
380 | ||
ef416fc2 | 381 | httpAddrFreeList(http->addrlist); |
382 | ||
ef416fc2 | 383 | if (http->cookie) |
384 | free(http->cookie); | |
385 | ||
f7deaa1a | 386 | #ifdef HAVE_GSSAPI |
387 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 388 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 389 | |
390 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 391 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 392 | #endif /* HAVE_GSSAPI */ |
393 | ||
b94498cf | 394 | #ifdef HAVE_AUTHORIZATION_H |
395 | if (http->auth_ref) | |
396 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
397 | #endif /* HAVE_AUTHORIZATION_H */ | |
398 | ||
f7deaa1a | 399 | httpClearFields(http); |
400 | ||
401 | if (http->authstring && http->authstring != http->_authstring) | |
402 | free(http->authstring); | |
403 | ||
ef416fc2 | 404 | free(http); |
405 | } | |
406 | ||
407 | ||
408 | /* | |
409 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e | 410 | * |
a469f8a5 | 411 | * This function is deprecated - use @link httpConnect2@ instead. |
1ff0402e MS |
412 | * |
413 | * @deprecated@ | |
ef416fc2 | 414 | */ |
415 | ||
416 | http_t * /* O - New HTTP connection */ | |
417 | httpConnect(const char *host, /* I - Host to connect to */ | |
418 | int port) /* I - Port number */ | |
419 | { | |
2c85b752 MS |
420 | return (httpConnect2(host, port, NULL, AF_UNSPEC, |
421 | HTTP_ENCRYPTION_IF_REQUESTED, 1, 30000, NULL)); | |
1ff0402e MS |
422 | } |
423 | ||
424 | ||
425 | /* | |
a469f8a5 MS |
426 | * 'httpConnect2()' - Connect to a HTTP server. |
427 | * | |
9c0e8e5d | 428 | * @since CUPS 1.7/OS X 10.9@ |
1ff0402e MS |
429 | */ |
430 | ||
431 | http_t * /* O - New HTTP connection */ | |
a469f8a5 | 432 | httpConnect2( |
1ff0402e MS |
433 | const char *host, /* I - Host to connect to */ |
434 | int port, /* I - Port number */ | |
a469f8a5 MS |
435 | http_addrlist_t *addrlist, /* I - List of addresses or NULL to lookup */ |
436 | int family, /* I - Address family to use or @code AF_UNSPEC@ for any */ | |
437 | http_encryption_t encryption, /* I - Type of encryption to use */ | |
438 | int blocking, /* I - 1 for blocking connection, 0 for non-blocking */ | |
db8b865d | 439 | int msec, /* I - Connection timeout in milliseconds, 0 means don't connect */ |
a469f8a5 | 440 | int *cancel) /* I - Pointer to "cancel" variable */ |
1ff0402e MS |
441 | { |
442 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 443 | |
444 | ||
a469f8a5 MS |
445 | DEBUG_printf(("httpConnect2(host=\"%s\", port=%d, addrlist=%p, family=%d, " |
446 | "encryption=%d, blocking=%d, msec=%d, cancel=%p)", host, port, | |
447 | addrlist, family, encryption, blocking, msec, cancel)); | |
1ff0402e | 448 | |
ef416fc2 | 449 | /* |
1ff0402e | 450 | * Create the HTTP structure... |
ef416fc2 | 451 | */ |
452 | ||
db8b865d | 453 | if ((http = http_create(host, port, addrlist, family, encryption, blocking, |
a469f8a5 | 454 | _HTTP_MODE_CLIENT)) == NULL) |
1ff0402e | 455 | return (NULL); |
ef416fc2 | 456 | |
1ff0402e | 457 | /* |
db8b865d | 458 | * Optionally connect to the remote system... |
1ff0402e MS |
459 | */ |
460 | ||
db8b865d | 461 | if (msec == 0 || !httpReconnect2(http, msec, cancel)) |
1ff0402e MS |
462 | return (http); |
463 | ||
464 | /* | |
465 | * Could not connect to any known address - bail out! | |
466 | */ | |
467 | ||
a469f8a5 | 468 | httpClose(http); |
1ff0402e MS |
469 | |
470 | return (NULL); | |
ef416fc2 | 471 | } |
472 | ||
473 | ||
a469f8a5 MS |
474 | /* |
475 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
476 | * | |
477 | * This function is now deprecated. Please use the @link httpConnect2@ function | |
478 | * instead. | |
479 | * | |
480 | * @deprecated@ | |
481 | */ | |
482 | ||
483 | http_t * /* O - New HTTP connection */ | |
484 | httpConnectEncrypt( | |
485 | const char *host, /* I - Host to connect to */ | |
486 | int port, /* I - Port number */ | |
487 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
488 | { | |
489 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", | |
490 | host, port, encryption)); | |
491 | ||
492 | return (httpConnect2(host, port, NULL, AF_UNSPEC, encryption, 1, 30000, | |
493 | NULL)); | |
494 | } | |
495 | ||
496 | ||
ef416fc2 | 497 | /* |
498 | * 'httpDelete()' - Send a DELETE request to the server. | |
499 | */ | |
500 | ||
501 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 502 | httpDelete(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 503 | const char *uri) /* I - URI to delete */ |
504 | { | |
cb7f98ee | 505 | return (http_send(http, HTTP_STATE_DELETE, uri)); |
ef416fc2 | 506 | } |
507 | ||
508 | ||
6d2f911b MS |
509 | /* |
510 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
511 | */ | |
512 | ||
513 | void | |
e6b1a6a9 | 514 | _httpDisconnect(http_t *http) /* I - HTTP connection */ |
6d2f911b MS |
515 | { |
516 | #ifdef HAVE_SSL | |
517 | if (http->tls) | |
2c85b752 | 518 | http_tls_stop(http); |
6d2f911b MS |
519 | #endif /* HAVE_SSL */ |
520 | ||
87e98392 | 521 | httpAddrClose(NULL, http->fd); |
6d2f911b MS |
522 | |
523 | http->fd = -1; | |
524 | } | |
525 | ||
526 | ||
ef416fc2 | 527 | /* |
528 | * 'httpEncryption()' - Set the required encryption on the link. | |
529 | */ | |
530 | ||
531 | int /* O - -1 on error, 0 on success */ | |
e6b1a6a9 | 532 | httpEncryption(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 533 | http_encryption_t e) /* I - New encryption preference */ |
534 | { | |
e07d4801 | 535 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", http, e)); |
ef416fc2 | 536 | |
537 | #ifdef HAVE_SSL | |
538 | if (!http) | |
539 | return (0); | |
540 | ||
d3d89474 MS |
541 | if (http->mode == _HTTP_MODE_CLIENT) |
542 | { | |
543 | http->encryption = e; | |
ef416fc2 | 544 | |
d3d89474 MS |
545 | if ((http->encryption == HTTP_ENCRYPTION_ALWAYS && !http->tls) || |
546 | (http->encryption == HTTP_ENCRYPTION_NEVER && http->tls)) | |
547 | return (httpReconnect2(http, 30000, NULL)); | |
548 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) | |
549 | return (http_tls_upgrade(http)); | |
550 | else | |
551 | return (0); | |
552 | } | |
ef416fc2 | 553 | else |
d3d89474 MS |
554 | { |
555 | if (e == HTTP_ENCRYPTION_NEVER && http->tls) | |
556 | return (-1); | |
557 | ||
558 | http->encryption = e; | |
559 | if (e != HTTP_ENCRYPTION_IF_REQUESTED && !http->tls) | |
560 | return (http_tls_start(http)); | |
561 | else | |
562 | return (0); | |
563 | } | |
ef416fc2 | 564 | #else |
cb7f98ee | 565 | if (e == HTTP_ENCRYPTION_ALWAYS || e == HTTP_ENCRYPTION_REQUIRED) |
ef416fc2 | 566 | return (-1); |
567 | else | |
568 | return (0); | |
569 | #endif /* HAVE_SSL */ | |
570 | } | |
571 | ||
572 | ||
ecdc0628 | 573 | /* |
574 | * 'httpError()' - Get the last error on a connection. | |
575 | */ | |
576 | ||
577 | int /* O - Error code (errno) value */ | |
e6b1a6a9 | 578 | httpError(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 579 | { |
580 | if (http) | |
581 | return (http->error); | |
582 | else | |
583 | return (EINVAL); | |
584 | } | |
585 | ||
586 | ||
48bd1142 MS |
587 | /* |
588 | * 'httpFieldValue()' - Return the HTTP field enumeration value for a field | |
589 | * name. | |
590 | */ | |
591 | ||
592 | http_field_t /* O - Field index */ | |
593 | httpFieldValue(const char *name) /* I - String name */ | |
594 | { | |
595 | int i; /* Looping var */ | |
596 | ||
597 | ||
598 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
599 | if (!_cups_strcasecmp(name, http_fields[i])) | |
600 | return ((http_field_t)i); | |
601 | ||
602 | return (HTTP_FIELD_UNKNOWN); | |
603 | } | |
604 | ||
605 | ||
ef416fc2 | 606 | /* |
607 | * 'httpFlush()' - Flush data from a HTTP connection. | |
608 | */ | |
609 | ||
610 | void | |
e6b1a6a9 | 611 | httpFlush(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 612 | { |
f8b3a85b MS |
613 | char buffer[8192]; /* Junk buffer */ |
614 | int blocking; /* To block or not to block */ | |
615 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 616 | |
617 | ||
f11a948a | 618 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
48bd1142 | 619 | httpStateString(http->state))); |
ef416fc2 | 620 | |
c1420c87 MS |
621 | /* |
622 | * Nothing to do if we are in the "waiting" state... | |
623 | */ | |
624 | ||
625 | if (http->state == HTTP_STATE_WAITING) | |
626 | return; | |
627 | ||
fa73b229 | 628 | /* |
629 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
630 | */ | |
631 | ||
632 | blocking = http->blocking; | |
633 | http->blocking = 0; | |
634 | ||
635 | /* | |
636 | * Read any data we can... | |
637 | */ | |
638 | ||
f8b3a85b | 639 | oldstate = http->state; |
a4d04587 | 640 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 641 | |
642 | /* | |
643 | * Restore blocking and reset the connection if we didn't get all of | |
644 | * the remaining data... | |
645 | */ | |
646 | ||
647 | http->blocking = blocking; | |
648 | ||
a469f8a5 MS |
649 | if (http->state == oldstate && http->state != HTTP_STATE_WAITING && |
650 | http->fd >= 0) | |
fa73b229 | 651 | { |
652 | /* | |
653 | * Didn't get the data back, so close the current connection. | |
654 | */ | |
655 | ||
c41769ff MS |
656 | #ifdef HAVE_LIBZ |
657 | if (http->coding) | |
658 | http_content_coding_finish(http); | |
659 | #endif /* HAVE_LIBZ */ | |
660 | ||
a469f8a5 MS |
661 | DEBUG_puts("1httpFlush: Setting state to HTTP_STATE_WAITING and closing."); |
662 | ||
663 | http->state = HTTP_STATE_WAITING; | |
fa73b229 | 664 | |
665 | #ifdef HAVE_SSL | |
666 | if (http->tls) | |
2c85b752 | 667 | http_tls_stop(http); |
fa73b229 | 668 | #endif /* HAVE_SSL */ |
669 | ||
87e98392 | 670 | httpAddrClose(NULL, http->fd); |
fa73b229 | 671 | |
672 | http->fd = -1; | |
673 | } | |
ef416fc2 | 674 | } |
675 | ||
676 | ||
677 | /* | |
678 | * 'httpFlushWrite()' - Flush data in write buffer. | |
679 | * | |
f3c17241 | 680 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 681 | */ |
682 | ||
683 | int /* O - Bytes written or -1 on error */ | |
e6b1a6a9 | 684 | httpFlushWrite(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 685 | { |
686 | int bytes; /* Bytes written */ | |
687 | ||
688 | ||
a469f8a5 MS |
689 | DEBUG_printf(("httpFlushWrite(http=%p) data_encoding=%d", http, |
690 | http ? http->data_encoding : -1)); | |
ef416fc2 | 691 | |
692 | if (!http || !http->wused) | |
f8b3a85b MS |
693 | { |
694 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
695 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 696 | return (0); |
f8b3a85b | 697 | } |
ef416fc2 | 698 | |
a469f8a5 | 699 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 700 | bytes = http_write_chunk(http, http->wbuffer, http->wused); |
701 | else | |
702 | bytes = http_write(http, http->wbuffer, http->wused); | |
703 | ||
704 | http->wused = 0; | |
705 | ||
22c9029b | 706 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", bytes, errno)); |
f8b3a85b | 707 | |
ef416fc2 | 708 | return (bytes); |
709 | } | |
710 | ||
711 | ||
7cf5915e MS |
712 | /* |
713 | * 'httpFreeCredentials()' - Free an array of credentials. | |
714 | */ | |
715 | ||
716 | void | |
717 | httpFreeCredentials( | |
718 | cups_array_t *credentials) /* I - Array of credentials */ | |
719 | { | |
720 | http_credential_t *credential; /* Credential */ | |
721 | ||
722 | ||
723 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
724 | credential; | |
725 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
726 | { | |
727 | cupsArrayRemove(credentials, credential); | |
728 | free((void *)credential->data); | |
729 | free(credential); | |
730 | } | |
731 | ||
732 | cupsArrayDelete(credentials); | |
733 | } | |
734 | ||
735 | ||
ef416fc2 | 736 | /* |
737 | * 'httpGet()' - Send a GET request to the server. | |
738 | */ | |
739 | ||
740 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 741 | httpGet(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 742 | const char *uri) /* I - URI to get */ |
743 | { | |
cb7f98ee | 744 | return (http_send(http, HTTP_STATE_GET, uri)); |
ef416fc2 | 745 | } |
746 | ||
747 | ||
e6b1a6a9 MS |
748 | /* |
749 | * 'httpGetActivity()' - Get the most recent activity for a connection. | |
750 | * | |
751 | * The return value is the UNIX time of the last read or write. | |
752 | * | |
753 | * @since CUPS 2.0@ | |
754 | */ | |
755 | ||
756 | time_t /* O - Time of last read or write */ | |
757 | httpGetActivity(http_t *http) /* I - HTTP connection */ | |
758 | { | |
759 | return (http ? http->activity : 0); | |
760 | } | |
761 | ||
762 | ||
6961465f MS |
763 | /* |
764 | * 'httpGetAuthString()' - Get the current authorization string. | |
765 | * | |
766 | * The authorization string is set by cupsDoAuthentication() and | |
767 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
768 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
769 | * value. | |
770 | * | |
771 | * @since CUPS 1.3/OS X 10.5@ | |
772 | */ | |
773 | ||
774 | char * /* O - Authorization string */ | |
e6b1a6a9 | 775 | httpGetAuthString(http_t *http) /* I - HTTP connection */ |
6961465f MS |
776 | { |
777 | if (http) | |
778 | return (http->authstring); | |
779 | else | |
780 | return (NULL); | |
781 | } | |
782 | ||
783 | ||
784 | /* | |
785 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
786 | * | |
787 | * @since CUPS 1.2/OS X 10.5@ | |
788 | */ | |
789 | ||
790 | int /* O - 1 if blocking, 0 if non-blocking */ | |
e6b1a6a9 | 791 | httpGetBlocking(http_t *http) /* I - HTTP connection */ |
6961465f MS |
792 | { |
793 | return (http ? http->blocking : 0); | |
794 | } | |
795 | ||
796 | ||
a469f8a5 MS |
797 | /* |
798 | * 'httpGetContentEncoding()' - Get a common content encoding, if any, between | |
799 | * the client and server. | |
800 | * | |
801 | * This function uses the value of the Accepts-Encoding HTTP header and must be | |
802 | * called after receiving a response from the server or a request from the | |
803 | * client. The value returned can be use in subsequent requests (for clients) | |
804 | * or in the response (for servers) in order to compress the content stream. | |
805 | * | |
9c0e8e5d | 806 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
807 | */ |
808 | ||
809 | const char * /* O - Content-Coding value or | |
810 | @code NULL@ for the identity | |
811 | coding. */ | |
2c85b752 | 812 | httpGetContentEncoding(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
813 | { |
814 | #ifdef HAVE_LIBZ | |
815 | if (http && http->accept_encoding) | |
816 | { | |
817 | int i; /* Looping var */ | |
818 | char temp[HTTP_MAX_VALUE], /* Copy of Accepts-Encoding value */ | |
819 | *start, /* Start of coding value */ | |
820 | *end; /* End of coding value */ | |
821 | double qvalue; /* "qvalue" for coding */ | |
822 | struct lconv *loc = localeconv(); /* Locale data */ | |
823 | static const char * const codings[] = | |
824 | { /* Supported content codings */ | |
825 | "deflate", | |
826 | "gzip", | |
827 | "x-deflate", | |
828 | "x-gzip" | |
829 | }; | |
830 | ||
831 | strlcpy(temp, http->accept_encoding, sizeof(temp)); | |
832 | ||
833 | for (start = temp; *start; start = end) | |
834 | { | |
835 | /* | |
836 | * Find the end of the coding name... | |
837 | */ | |
838 | ||
839 | qvalue = 1.0; | |
840 | end = start; | |
841 | while (*end && *end != ';' && *end != ',' && !isspace(*end & 255)) | |
842 | end ++; | |
843 | ||
844 | if (*end == ';') | |
845 | { | |
846 | /* | |
847 | * Grab the qvalue as needed... | |
848 | */ | |
849 | ||
850 | if (!strncmp(end, ";q=", 3)) | |
851 | qvalue = _cupsStrScand(end + 3, NULL, loc); | |
852 | ||
853 | /* | |
854 | * Skip past all attributes... | |
855 | */ | |
856 | ||
857 | *end++ = '\0'; | |
858 | while (*end && *end != ',' && !isspace(*end & 255)) | |
859 | end ++; | |
860 | } | |
861 | else if (*end) | |
862 | *end++ = '\0'; | |
863 | ||
864 | while (*end && isspace(*end & 255)) | |
865 | end ++; | |
866 | ||
867 | /* | |
868 | * Check value if it matches something we support... | |
869 | */ | |
870 | ||
871 | if (qvalue <= 0.0) | |
872 | continue; | |
873 | ||
874 | for (i = 0; i < (int)(sizeof(codings) / sizeof(codings[0])); i ++) | |
875 | if (!strcmp(start, codings[i])) | |
876 | return (codings[i]); | |
877 | } | |
878 | } | |
879 | #endif /* HAVE_LIBZ */ | |
880 | ||
881 | return (NULL); | |
882 | } | |
883 | ||
884 | ||
ecdc0628 | 885 | /* |
886 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 887 | * |
f3c17241 | 888 | * @since CUPS 1.1.19/OS X 10.3@ |
ecdc0628 | 889 | */ |
890 | ||
891 | const char * /* O - Cookie data or NULL */ | |
892 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
893 | { | |
894 | return (http ? http->cookie : NULL); | |
895 | } | |
896 | ||
897 | ||
5ec1fd3d MS |
898 | /* |
899 | * 'httpGetEncryption()' - Get the current encryption mode of a connection. | |
900 | * | |
901 | * This function returns the encryption mode for the connection. Use the | |
902 | * @link httpIsEncrypted@ function to determine whether a TLS session has | |
903 | * been established. | |
904 | * | |
905 | * @since CUPS 2.0@ | |
906 | */ | |
907 | ||
908 | http_encryption_t /* O - Current encryption mode */ | |
909 | httpGetEncryption(http_t *http) /* I - HTTP connection */ | |
910 | { | |
911 | return (http ? http->encryption : HTTP_ENCRYPTION_IF_REQUESTED); | |
912 | } | |
913 | ||
914 | ||
a469f8a5 MS |
915 | /* |
916 | * 'httpGetExpect()' - Get the value of the Expect header, if any. | |
917 | * | |
918 | * Returns @code HTTP_STATUS_NONE@ if there is no Expect header, otherwise | |
919 | * returns the expected HTTP status code, typically @code HTTP_STATUS_CONTINUE@. | |
920 | * | |
9c0e8e5d | 921 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
922 | */ |
923 | ||
924 | http_status_t /* O - Expect: status, if any */ | |
2c85b752 | 925 | httpGetExpect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
926 | { |
927 | if (!http) | |
928 | return (HTTP_STATUS_ERROR); | |
929 | else | |
930 | return (http->expect); | |
931 | } | |
932 | ||
933 | ||
ecdc0628 | 934 | /* |
935 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
936 | * | |
f3c17241 | 937 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 938 | */ |
939 | ||
940 | int /* O - File descriptor or -1 if none */ | |
e6b1a6a9 | 941 | httpGetFd(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 942 | { |
943 | return (http ? http->fd : -1); | |
944 | } | |
945 | ||
946 | ||
947 | /* | |
948 | * 'httpGetField()' - Get a field value from a request/response. | |
949 | */ | |
950 | ||
951 | const char * /* O - Field value */ | |
e6b1a6a9 | 952 | httpGetField(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 953 | http_field_t field) /* I - Field to get */ |
954 | { | |
955 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
956 | return (NULL); | |
a469f8a5 MS |
957 | |
958 | switch (field) | |
f7deaa1a | 959 | { |
a469f8a5 MS |
960 | case HTTP_FIELD_ACCEPT_ENCODING : |
961 | return (http->accept_encoding); | |
f7deaa1a | 962 | |
a469f8a5 MS |
963 | case HTTP_FIELD_ALLOW : |
964 | return (http->allow); | |
965 | ||
966 | case HTTP_FIELD_SERVER : | |
967 | return (http->server); | |
968 | ||
969 | case HTTP_FIELD_AUTHORIZATION : | |
970 | if (http->field_authorization) | |
971 | { | |
972 | /* | |
973 | * Special case for WWW-Authenticate: as its contents can be | |
974 | * longer than HTTP_MAX_VALUE... | |
975 | */ | |
976 | ||
977 | return (http->field_authorization); | |
978 | } | |
979 | ||
980 | default : | |
981 | return (http->fields[field]); | |
f7deaa1a | 982 | } |
ecdc0628 | 983 | } |
984 | ||
985 | ||
e6b1a6a9 MS |
986 | /* |
987 | * 'httpGetKeepAlive()' - Get the current Keep-Alive state of the connection. | |
988 | * | |
989 | * @since CUPS 2.0@ | |
990 | */ | |
991 | ||
992 | http_keepalive_t /* O - Keep-Alive state */ | |
993 | httpGetKeepAlive(http_t *http) /* I - HTTP connection */ | |
994 | { | |
995 | return (http ? http->keep_alive : HTTP_KEEPALIVE_OFF); | |
996 | } | |
997 | ||
998 | ||
ecdc0628 | 999 | /* |
1000 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1001 | * content-length or transfer-encoding fields. | |
1002 | * | |
1003 | * This function is deprecated and will not return lengths larger than | |
1004 | * 2^31 - 1; use httpGetLength2() instead. | |
1005 | * | |
1006 | * @deprecated@ | |
1007 | */ | |
1008 | ||
1009 | int /* O - Content length */ | |
e6b1a6a9 | 1010 | httpGetLength(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1011 | { |
1012 | /* | |
1013 | * Get the read content length and return the 32-bit value. | |
1014 | */ | |
1015 | ||
1016 | if (http) | |
1017 | { | |
1018 | httpGetLength2(http); | |
1019 | ||
1020 | return (http->_data_remaining); | |
1021 | } | |
1022 | else | |
1023 | return (-1); | |
1024 | } | |
1025 | ||
1026 | ||
1027 | /* | |
1028 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1029 | * content-length or transfer-encoding fields. | |
1030 | * | |
1031 | * This function returns the complete content length, even for | |
1032 | * content larger than 2^31 - 1. | |
1033 | * | |
f3c17241 | 1034 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 1035 | */ |
1036 | ||
1037 | off_t /* O - Content length */ | |
e6b1a6a9 | 1038 | httpGetLength2(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1039 | { |
a469f8a5 MS |
1040 | off_t remaining; /* Remaining length */ |
1041 | ||
1042 | ||
f11a948a | 1043 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
48bd1142 | 1044 | httpStateString(http->state))); |
ecdc0628 | 1045 | |
1046 | if (!http) | |
1047 | return (-1); | |
1048 | ||
88f9aafc | 1049 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1050 | { |
e07d4801 | 1051 | DEBUG_puts("4httpGetLength2: chunked request!"); |
a469f8a5 | 1052 | remaining = 0; |
ecdc0628 | 1053 | } |
1054 | else | |
1055 | { | |
ecdc0628 | 1056 | /* |
1057 | * The following is a hack for HTTP servers that don't send a | |
a469f8a5 | 1058 | * Content-Length or Transfer-Encoding field... |
ecdc0628 | 1059 | * |
a469f8a5 | 1060 | * If there is no Content-Length then the connection must close |
ecdc0628 | 1061 | * after the transfer is complete... |
1062 | */ | |
1063 | ||
b86bc4cf | 1064 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1065 | { | |
1066 | /* | |
a469f8a5 MS |
1067 | * Default content length is 0 for errors and certain types of operations, |
1068 | * and 2^31-1 for other successful requests... | |
b86bc4cf | 1069 | */ |
1070 | ||
cb7f98ee | 1071 | if (http->status >= HTTP_STATUS_MULTIPLE_CHOICES || |
a469f8a5 MS |
1072 | http->state == HTTP_STATE_OPTIONS || |
1073 | (http->state == HTTP_STATE_GET && http->mode == _HTTP_MODE_SERVER) || | |
1074 | http->state == HTTP_STATE_HEAD || | |
1075 | (http->state == HTTP_STATE_PUT && http->mode == _HTTP_MODE_CLIENT) || | |
1076 | http->state == HTTP_STATE_DELETE || | |
1077 | http->state == HTTP_STATE_TRACE || | |
1078 | http->state == HTTP_STATE_CONNECT) | |
1079 | remaining = 0; | |
b86bc4cf | 1080 | else |
a469f8a5 | 1081 | remaining = 2147483647; |
b86bc4cf | 1082 | } |
a469f8a5 MS |
1083 | else if ((remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], |
1084 | NULL, 10)) < 0) | |
1085 | remaining = -1; | |
ecdc0628 | 1086 | |
e07d4801 | 1087 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
a469f8a5 | 1088 | CUPS_LLCAST remaining)); |
ecdc0628 | 1089 | } |
1090 | ||
a469f8a5 | 1091 | return (remaining); |
ecdc0628 | 1092 | } |
1093 | ||
1094 | ||
d21dc0ed MS |
1095 | /* |
1096 | * 'httpGetPending()' - Get the number of bytes that are buffered for writing. | |
1097 | * | |
1098 | * @since CUPS 2.0@ | |
1099 | */ | |
1100 | ||
1101 | size_t /* O - Number of bytes buffered */ | |
1102 | httpGetPending(http_t *http) /* I - HTTP connection */ | |
1103 | { | |
1104 | return (http ? http->wused : 0); | |
1105 | } | |
1106 | ||
1107 | ||
e6b1a6a9 MS |
1108 | /* |
1109 | * 'httpGetReady()' - Get the number of bytes that can be read without blocking. | |
1110 | * | |
1111 | * @since CUPS 2.0@ | |
1112 | */ | |
1113 | ||
1114 | size_t /* O - Number of bytes available */ | |
1115 | httpGetReady(http_t *http) /* I - HTTP connection */ | |
1116 | { | |
1117 | if (!http) | |
1118 | return (0); | |
1119 | else if (http->used > 0) | |
1120 | return (http->used); | |
1121 | #ifdef HAVE_SSL | |
1122 | else if (http->tls) | |
1123 | { | |
1124 | size_t ready; /* Ready bytes */ | |
1125 | ||
1126 | # ifdef HAVE_LIBSSL | |
1127 | if ((ready = SSL_pending((SSL *)(http->tls))) > 0) | |
1128 | return (ready); | |
1129 | # elif defined(HAVE_GNUTLS) | |
1130 | if ((ready = gnutls_record_check_pending(http->tls)) > 0) | |
1131 | return (ready); | |
1132 | # elif defined(HAVE_CDSASSL) | |
1133 | if (!SSLGetBufferedReadSize(http->tls, &ready) && ready > 0) | |
1134 | return (ready); | |
1135 | # endif /* HAVE_LIBSSL */ | |
1136 | } | |
1137 | #endif /* HAVE_SSL */ | |
1138 | ||
1139 | return (0); | |
1140 | } | |
1141 | ||
1142 | ||
5ec1fd3d MS |
1143 | /* |
1144 | * 'httpGetRemaining()' - Get the number of remaining bytes in the message | |
1145 | * body or current chunk. | |
1146 | * | |
1147 | * The @link httpIsChunked@ function can be used to determine whether the | |
1148 | * message body is chunked or fixed-length. | |
1149 | * | |
1150 | * @since CUPS 2.0@ | |
1151 | */ | |
1152 | ||
1153 | size_t /* O - Remaining bytes */ | |
1154 | httpGetRemaining(http_t *http) /* I - HTTP connection */ | |
1155 | { | |
1156 | return (http ? http->data_remaining : 0); | |
1157 | } | |
1158 | ||
1159 | ||
ef416fc2 | 1160 | /* |
1161 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1162 | */ | |
1163 | ||
1164 | char * /* O - Line or NULL */ | |
1165 | httpGets(char *line, /* I - Line to read into */ | |
1166 | int length, /* I - Max length of buffer */ | |
e6b1a6a9 | 1167 | http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1168 | { |
1169 | char *lineptr, /* Pointer into line */ | |
1170 | *lineend, /* End of line */ | |
1171 | *bufptr, /* Pointer into input buffer */ | |
1172 | *bufend; /* Pointer to end of buffer */ | |
1173 | int bytes, /* Number of bytes read */ | |
1174 | eol; /* End-of-line? */ | |
1175 | ||
1176 | ||
e07d4801 | 1177 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1178 | |
0fa6c7fa | 1179 | if (!http || !line || length <= 1) |
ef416fc2 | 1180 | return (NULL); |
1181 | ||
1182 | /* | |
1183 | * Read a line from the buffer... | |
1184 | */ | |
f11a948a MS |
1185 | |
1186 | http->error = 0; | |
1187 | lineptr = line; | |
1188 | lineend = line + length - 1; | |
1189 | eol = 0; | |
ef416fc2 | 1190 | |
1191 | while (lineptr < lineend) | |
1192 | { | |
1193 | /* | |
1194 | * Pre-load the buffer as needed... | |
1195 | */ | |
1196 | ||
1197 | #ifdef WIN32 | |
1198 | WSASetLastError(0); | |
1199 | #else | |
1200 | errno = 0; | |
1201 | #endif /* WIN32 */ | |
1202 | ||
1203 | while (http->used == 0) | |
1204 | { | |
1205 | /* | |
1206 | * No newline; see if there is more data to be read... | |
1207 | */ | |
1208 | ||
85dda01c | 1209 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1210 | { |
f228370c MS |
1211 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1212 | continue; | |
1213 | ||
e07d4801 | 1214 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1215 | #ifdef WIN32 |
1216 | http->error = WSAETIMEDOUT; | |
1217 | #else | |
89d46774 | 1218 | http->error = ETIMEDOUT; |
b86bc4cf | 1219 | #endif /* WIN32 */ |
ef416fc2 | 1220 | return (NULL); |
89d46774 | 1221 | } |
ef416fc2 | 1222 | |
0fa6c7fa MS |
1223 | bytes = http_read(http, http->buffer + http->used, |
1224 | HTTP_MAX_BUFFER - http->used); | |
ef416fc2 | 1225 | |
0fa6c7fa | 1226 | DEBUG_printf(("4httpGets: read %d bytes.", bytes)); |
12f89d24 | 1227 | |
ef416fc2 | 1228 | if (bytes < 0) |
1229 | { | |
1230 | /* | |
1231 | * Nope, can't get a line this time... | |
1232 | */ | |
1233 | ||
1234 | #ifdef WIN32 | |
cc754834 MS |
1235 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1236 | ||
10d09e33 | 1237 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1238 | continue; |
10d09e33 MS |
1239 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1240 | { | |
1241 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1242 | continue; | |
1243 | ||
1244 | http->error = WSAGetLastError(); | |
1245 | } | |
cc754834 | 1246 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1247 | { |
1248 | http->error = WSAGetLastError(); | |
1249 | continue; | |
1250 | } | |
1251 | ||
ef416fc2 | 1252 | #else |
e07d4801 | 1253 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1254 | |
10d09e33 | 1255 | if (errno == EINTR) |
ef416fc2 | 1256 | continue; |
10d09e33 MS |
1257 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1258 | { | |
1259 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1260 | continue; | |
1261 | else if (!http->timeout_cb && errno == EAGAIN) | |
1262 | continue; | |
1263 | ||
1264 | http->error = errno; | |
1265 | } | |
ef416fc2 | 1266 | else if (errno != http->error) |
1267 | { | |
1268 | http->error = errno; | |
1269 | continue; | |
1270 | } | |
1271 | #endif /* WIN32 */ | |
1272 | ||
1273 | return (NULL); | |
1274 | } | |
1275 | else if (bytes == 0) | |
1276 | { | |
1277 | http->error = EPIPE; | |
1278 | ||
1279 | return (NULL); | |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | * Yup, update the amount used... | |
1284 | */ | |
1285 | ||
1286 | http->used += bytes; | |
1287 | } | |
1288 | ||
1289 | /* | |
1290 | * Now copy as much of the current line as possible... | |
1291 | */ | |
1292 | ||
1293 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1294 | lineptr < lineend && bufptr < bufend;) | |
1295 | { | |
1296 | if (*bufptr == 0x0a) | |
1297 | { | |
1298 | eol = 1; | |
1299 | bufptr ++; | |
1300 | break; | |
1301 | } | |
1302 | else if (*bufptr == 0x0d) | |
1303 | bufptr ++; | |
1304 | else | |
1305 | *lineptr++ = *bufptr++; | |
1306 | } | |
1307 | ||
b86bc4cf | 1308 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1309 | if (http->used > 0) |
1310 | memmove(http->buffer, bufptr, http->used); | |
1311 | ||
1312 | if (eol) | |
1313 | { | |
1314 | /* | |
1315 | * End of line... | |
1316 | */ | |
1317 | ||
1318 | http->activity = time(NULL); | |
1319 | ||
1320 | *lineptr = '\0'; | |
ef55b745 | 1321 | |
e07d4801 | 1322 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1323 | |
1324 | return (line); | |
1325 | } | |
1326 | } | |
1327 | ||
e07d4801 | 1328 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1329 | |
1330 | return (NULL); | |
1331 | } | |
1332 | ||
1333 | ||
a2326b5b MS |
1334 | /* |
1335 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1336 | */ | |
1337 | ||
1338 | http_state_t /* O - HTTP state */ | |
e6b1a6a9 | 1339 | httpGetState(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1340 | { |
a469f8a5 | 1341 | return (http ? http->state : HTTP_STATE_ERROR); |
a2326b5b MS |
1342 | } |
1343 | ||
1344 | ||
1345 | /* | |
1346 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1347 | * | |
f3c17241 | 1348 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1349 | */ |
1350 | ||
1351 | http_status_t /* O - HTTP status */ | |
e6b1a6a9 | 1352 | httpGetStatus(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1353 | { |
cb7f98ee | 1354 | return (http ? http->status : HTTP_STATUS_ERROR); |
a2326b5b MS |
1355 | } |
1356 | ||
1357 | ||
1358 | /* | |
1359 | * 'httpGetSubField()' - Get a sub-field value. | |
1360 | * | |
1361 | * @deprecated@ | |
1362 | */ | |
1363 | ||
1364 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1365 | httpGetSubField(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1366 | http_field_t field, /* I - Field index */ |
1367 | const char *name, /* I - Name of sub-field */ | |
1368 | char *value) /* O - Value string */ | |
1369 | { | |
1370 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1371 | } | |
1372 | ||
1373 | ||
1374 | /* | |
1375 | * 'httpGetSubField2()' - Get a sub-field value. | |
1376 | * | |
f3c17241 | 1377 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1378 | */ |
1379 | ||
1380 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1381 | httpGetSubField2(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1382 | http_field_t field, /* I - Field index */ |
1383 | const char *name, /* I - Name of sub-field */ | |
1384 | char *value, /* O - Value string */ | |
1385 | int valuelen) /* I - Size of value buffer */ | |
1386 | { | |
1387 | const char *fptr; /* Pointer into field */ | |
1388 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1389 | *ptr, /* Pointer into string buffer */ | |
1390 | *end; /* End of value buffer */ | |
1391 | ||
1392 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " | |
1393 | "valuelen=%d)", http, field, name, value, valuelen)); | |
1394 | ||
1395 | if (!http || !name || !value || valuelen < 2 || | |
1396 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1397 | return (NULL); | |
1398 | ||
1399 | end = value + valuelen - 1; | |
1400 | ||
1401 | for (fptr = http->fields[field]; *fptr;) | |
1402 | { | |
1403 | /* | |
1404 | * Skip leading whitespace... | |
1405 | */ | |
1406 | ||
1407 | while (_cups_isspace(*fptr)) | |
1408 | fptr ++; | |
1409 | ||
1410 | if (*fptr == ',') | |
1411 | { | |
1412 | fptr ++; | |
1413 | continue; | |
1414 | } | |
1415 | ||
1416 | /* | |
1417 | * Get the sub-field name... | |
1418 | */ | |
1419 | ||
1420 | for (ptr = temp; | |
1421 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1422 | ptr < (temp + sizeof(temp) - 1); | |
1423 | *ptr++ = *fptr++); | |
1424 | ||
1425 | *ptr = '\0'; | |
1426 | ||
1427 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1428 | ||
1429 | /* | |
1430 | * Skip trailing chars up to the '='... | |
1431 | */ | |
1432 | ||
1433 | while (_cups_isspace(*fptr)) | |
1434 | fptr ++; | |
1435 | ||
1436 | if (!*fptr) | |
1437 | break; | |
1438 | ||
1439 | if (*fptr != '=') | |
1440 | continue; | |
1441 | ||
1442 | /* | |
1443 | * Skip = and leading whitespace... | |
1444 | */ | |
1445 | ||
1446 | fptr ++; | |
1447 | ||
1448 | while (_cups_isspace(*fptr)) | |
1449 | fptr ++; | |
1450 | ||
1451 | if (*fptr == '\"') | |
1452 | { | |
1453 | /* | |
1454 | * Read quoted string... | |
1455 | */ | |
1456 | ||
1457 | for (ptr = value, fptr ++; | |
1458 | *fptr && *fptr != '\"' && ptr < end; | |
1459 | *ptr++ = *fptr++); | |
1460 | ||
1461 | *ptr = '\0'; | |
1462 | ||
1463 | while (*fptr && *fptr != '\"') | |
1464 | fptr ++; | |
1465 | ||
1466 | if (*fptr) | |
1467 | fptr ++; | |
1468 | } | |
1469 | else | |
1470 | { | |
1471 | /* | |
1472 | * Read unquoted string... | |
1473 | */ | |
1474 | ||
1475 | for (ptr = value; | |
1476 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1477 | *ptr++ = *fptr++); | |
1478 | ||
1479 | *ptr = '\0'; | |
1480 | ||
1481 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1482 | fptr ++; | |
1483 | } | |
1484 | ||
1485 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1486 | ||
1487 | /* | |
1488 | * See if this is the one... | |
1489 | */ | |
1490 | ||
1491 | if (!strcmp(name, temp)) | |
1492 | { | |
1493 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1494 | return (value); | |
1495 | } | |
1496 | } | |
1497 | ||
1498 | value[0] = '\0'; | |
1499 | ||
1500 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1501 | ||
1502 | return (NULL); | |
1503 | } | |
1504 | ||
1505 | ||
1506 | /* | |
1507 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1508 | */ | |
1509 | ||
1510 | http_version_t /* O - Version number */ | |
e6b1a6a9 | 1511 | httpGetVersion(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1512 | { |
a469f8a5 | 1513 | return (http ? http->version : HTTP_VERSION_1_0); |
a2326b5b MS |
1514 | } |
1515 | ||
1516 | ||
ef416fc2 | 1517 | /* |
1518 | * 'httpHead()' - Send a HEAD request to the server. | |
1519 | */ | |
1520 | ||
1521 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1522 | httpHead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1523 | const char *uri) /* I - URI for head */ |
1524 | { | |
e07d4801 | 1525 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1526 | return (http_send(http, HTTP_STATE_HEAD, uri)); |
ef416fc2 | 1527 | } |
1528 | ||
1529 | ||
1530 | /* | |
1531 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1532 | * default HTTP proxy (if any). | |
1533 | */ | |
1534 | ||
1535 | void | |
1536 | httpInitialize(void) | |
1537 | { | |
6d2f911b MS |
1538 | static int initialized = 0; /* Have we been called before? */ |
1539 | #ifdef WIN32 | |
1540 | WSADATA winsockdata; /* WinSock data */ | |
1541 | #endif /* WIN32 */ | |
ef416fc2 | 1542 | #ifdef HAVE_LIBSSL |
6d2f911b MS |
1543 | int i; /* Looping var */ |
1544 | unsigned char data[1024]; /* Seed data */ | |
ef416fc2 | 1545 | #endif /* HAVE_LIBSSL */ |
1546 | ||
ef416fc2 | 1547 | |
6d2f911b MS |
1548 | _cupsGlobalLock(); |
1549 | if (initialized) | |
1550 | { | |
1551 | _cupsGlobalUnlock(); | |
1552 | return; | |
1553 | } | |
1554 | ||
1555 | #ifdef WIN32 | |
c7017ecc | 1556 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1557 | |
fa73b229 | 1558 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1559 | /* |
1560 | * Ignore SIGPIPE signals... | |
1561 | */ | |
1562 | ||
fa73b229 | 1563 | # ifdef HAVE_SIGSET |
1564 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1565 | |
fa73b229 | 1566 | # elif defined(HAVE_SIGACTION) |
1567 | struct sigaction action; /* POSIX sigaction data */ | |
1568 | ||
1569 | ||
ef416fc2 | 1570 | memset(&action, 0, sizeof(action)); |
1571 | action.sa_handler = SIG_IGN; | |
1572 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1573 | |
fa73b229 | 1574 | # else |
ef416fc2 | 1575 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1576 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1577 | #endif /* WIN32 */ |
1578 | ||
2c85b752 MS |
1579 | # ifdef HAVE_SSL |
1580 | http_tls_initialize(); | |
1581 | # endif /* HAVE_SSL */ | |
6d2f911b MS |
1582 | |
1583 | initialized = 1; | |
1584 | _cupsGlobalUnlock(); | |
ef416fc2 | 1585 | } |
1586 | ||
1587 | ||
5ec1fd3d MS |
1588 | /* |
1589 | * 'httpIsChunked()' - Report whether a message body is chunked. | |
1590 | * | |
1591 | * This function returns non-zero if the message body is composed of | |
1592 | * variable-length chunks. | |
1593 | * | |
1594 | * @since CUPS 2.0@ | |
1595 | */ | |
1596 | ||
1597 | int /* O - 1 if chunked, 0 if not */ | |
1598 | httpIsChunked(http_t *http) /* I - HTTP connection */ | |
1599 | { | |
1600 | return (http ? http->data_encoding == HTTP_ENCODING_CHUNKED : 0); | |
1601 | } | |
1602 | ||
1603 | ||
1604 | /* | |
1605 | * 'httpIsEncrypted()' - Report whether a connection is encrypted. | |
1606 | * | |
1607 | * This function returns non-zero if the connection is currently encrypted. | |
1608 | * | |
1609 | * @since CUPS 2.0@ | |
1610 | */ | |
1611 | ||
1612 | int /* O - 1 if encrypted, 0 if not */ | |
1613 | httpIsEncrypted(http_t *http) /* I - HTTP connection */ | |
1614 | { | |
1615 | return (http ? http->tls != NULL : 0); | |
1616 | } | |
1617 | ||
1618 | ||
ef416fc2 | 1619 | /* |
1620 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1621 | */ | |
1622 | ||
1623 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1624 | httpOptions(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1625 | const char *uri) /* I - URI for options */ |
1626 | { | |
cb7f98ee | 1627 | return (http_send(http, HTTP_STATE_OPTIONS, uri)); |
ef416fc2 | 1628 | } |
1629 | ||
1630 | ||
6d2f911b | 1631 | /* |
a469f8a5 | 1632 | * 'httpPeek()' - Peek at data from a HTTP connection. |
6d2f911b MS |
1633 | * |
1634 | * This function copies available data from the given HTTP connection, reading | |
1635 | * a buffer as needed. The data is still available for reading using | |
1636 | * @link httpRead@ or @link httpRead2@. | |
1637 | * | |
1638 | * For non-blocking connections the usual timeouts apply. | |
a469f8a5 | 1639 | * |
9c0e8e5d | 1640 | * @since CUPS 1.7/OS X 10.9@ |
6d2f911b MS |
1641 | */ |
1642 | ||
1643 | ssize_t /* O - Number of bytes copied */ | |
e6b1a6a9 | 1644 | httpPeek(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
1645 | char *buffer, /* I - Buffer for data */ |
1646 | size_t length) /* I - Maximum number of bytes */ | |
6d2f911b MS |
1647 | { |
1648 | ssize_t bytes; /* Bytes read */ | |
1649 | char len[32]; /* Length string */ | |
1650 | ||
1651 | ||
a469f8a5 | 1652 | DEBUG_printf(("httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
6d2f911b MS |
1653 | http, buffer, CUPS_LLCAST length)); |
1654 | ||
1655 | if (http == NULL || buffer == NULL) | |
1656 | return (-1); | |
1657 | ||
1658 | http->activity = time(NULL); | |
1659 | http->error = 0; | |
1660 | ||
1661 | if (length <= 0) | |
1662 | return (0); | |
1663 | ||
a469f8a5 | 1664 | if (http->data_encoding == HTTP_ENCODING_CHUNKED && |
6d2f911b MS |
1665 | http->data_remaining <= 0) |
1666 | { | |
a469f8a5 | 1667 | DEBUG_puts("2httpPeek: Getting chunk length..."); |
6d2f911b MS |
1668 | |
1669 | if (httpGets(len, sizeof(len), http) == NULL) | |
1670 | { | |
a469f8a5 | 1671 | DEBUG_puts("1httpPeek: Could not get length!"); |
6d2f911b MS |
1672 | return (0); |
1673 | } | |
1674 | ||
db8b865d MS |
1675 | if (!len[0]) |
1676 | { | |
1677 | DEBUG_puts("1httpPeek: Blank chunk length, trying again..."); | |
1678 | if (!httpGets(len, sizeof(len), http)) | |
1679 | { | |
1680 | DEBUG_puts("1httpPeek: Could not get chunk length."); | |
1681 | return (0); | |
1682 | } | |
1683 | } | |
1684 | ||
6d2f911b | 1685 | http->data_remaining = strtoll(len, NULL, 16); |
db8b865d | 1686 | |
6d2f911b MS |
1687 | if (http->data_remaining < 0) |
1688 | { | |
a469f8a5 | 1689 | DEBUG_puts("1httpPeek: Negative chunk length!"); |
6d2f911b MS |
1690 | return (0); |
1691 | } | |
1692 | } | |
1693 | ||
a469f8a5 | 1694 | DEBUG_printf(("2httpPeek: data_remaining=" CUPS_LLFMT, |
6d2f911b MS |
1695 | CUPS_LLCAST http->data_remaining)); |
1696 | ||
0fa6c7fa | 1697 | if (http->data_remaining <= 0 && http->data_encoding != HTTP_ENCODING_FIELDS) |
6d2f911b MS |
1698 | { |
1699 | /* | |
1700 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1701 | * data, go idle... | |
1702 | */ | |
1703 | ||
c41769ff MS |
1704 | #ifdef HAVE_LIBZ |
1705 | if (http->coding) | |
1706 | http_content_coding_finish(http); | |
1707 | #endif /* HAVE_LIBZ */ | |
1708 | ||
0fa6c7fa MS |
1709 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
1710 | httpGets(len, sizeof(len), http); | |
1711 | ||
a469f8a5 | 1712 | if (http->state == HTTP_STATE_POST_RECV) |
6d2f911b MS |
1713 | http->state ++; |
1714 | else | |
cb7f98ee | 1715 | http->state = HTTP_STATE_STATUS; |
a469f8a5 MS |
1716 | |
1717 | DEBUG_printf(("1httpPeek: 0-length chunk, set state to %s.", | |
48bd1142 | 1718 | httpStateString(http->state))); |
6d2f911b MS |
1719 | |
1720 | /* | |
1721 | * Prevent future reads for this request... | |
1722 | */ | |
1723 | ||
a469f8a5 | 1724 | http->data_encoding = HTTP_ENCODING_FIELDS; |
6d2f911b MS |
1725 | |
1726 | return (0); | |
1727 | } | |
0fa6c7fa | 1728 | else if (length > (size_t)http->data_remaining) |
6d2f911b MS |
1729 | length = (size_t)http->data_remaining; |
1730 | ||
0fa6c7fa MS |
1731 | #ifdef HAVE_LIBZ |
1732 | if (http->used == 0 && | |
1733 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0)) | |
1734 | #else | |
6d2f911b | 1735 | if (http->used == 0) |
0fa6c7fa | 1736 | #endif /* HAVE_LIBZ */ |
6d2f911b MS |
1737 | { |
1738 | /* | |
1739 | * Buffer small reads for better performance... | |
1740 | */ | |
1741 | ||
3e7fe0ca MS |
1742 | ssize_t buflen; /* Length of read for buffer */ |
1743 | ||
f228370c MS |
1744 | if (!http->blocking) |
1745 | { | |
85dda01c | 1746 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1747 | { |
1748 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1749 | continue; | |
1750 | ||
1751 | return (0); | |
1752 | } | |
1753 | } | |
6d2f911b MS |
1754 | |
1755 | if (http->data_remaining > sizeof(http->buffer)) | |
3e7fe0ca | 1756 | buflen = sizeof(http->buffer); |
6d2f911b | 1757 | else |
3e7fe0ca MS |
1758 | buflen = http->data_remaining; |
1759 | ||
a469f8a5 | 1760 | DEBUG_printf(("2httpPeek: Reading %d bytes into buffer.", (int)buflen)); |
db8b865d | 1761 | bytes = http_read(http, http->buffer, buflen); |
3e7fe0ca | 1762 | |
a469f8a5 | 1763 | DEBUG_printf(("2httpPeek: Read " CUPS_LLFMT " bytes into buffer.", |
3e7fe0ca | 1764 | CUPS_LLCAST bytes)); |
db8b865d MS |
1765 | if (bytes > 0) |
1766 | { | |
3e7fe0ca | 1767 | #ifdef DEBUG |
db8b865d | 1768 | http_debug_hex("httpPeek", http->buffer, (int)bytes); |
3e7fe0ca MS |
1769 | #endif /* DEBUG */ |
1770 | ||
db8b865d MS |
1771 | http->used = bytes; |
1772 | } | |
6d2f911b MS |
1773 | } |
1774 | ||
c1420c87 MS |
1775 | #ifdef HAVE_LIBZ |
1776 | if (http->coding) | |
1777 | { | |
db8b865d | 1778 | # ifdef HAVE_INFLATECOPY |
c1420c87 | 1779 | int zerr; /* Decompressor error */ |
c1420c87 MS |
1780 | z_stream stream; /* Copy of decompressor stream */ |
1781 | ||
0fa6c7fa MS |
1782 | if (http->used > 0 && http->stream.avail_in < HTTP_MAX_BUFFER) |
1783 | { | |
1784 | size_t buflen = buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
1785 | /* Number of bytes to copy */ | |
1786 | ||
1787 | if (http->stream.avail_in > 0 && | |
1788 | http->stream.next_in > http->dbuffer) | |
1789 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
1790 | ||
1791 | http->stream.next_in = http->dbuffer; | |
1792 | ||
1793 | if (buflen > http->data_remaining) | |
1794 | buflen = http->data_remaining; | |
1795 | ||
1796 | if (buflen > http->used) | |
1797 | buflen = http->used; | |
1798 | ||
1799 | DEBUG_printf(("1httpPeek: Copying %d more bytes of data into " | |
1800 | "decompression buffer.", (int)buflen)); | |
1801 | ||
1802 | memcpy(http->dbuffer + http->stream.avail_in, http->buffer, buflen); | |
1803 | http->stream.avail_in += buflen; | |
1804 | http->used -= buflen; | |
1805 | http->data_remaining -= buflen; | |
1806 | ||
1807 | if (http->used > 0) | |
1808 | memmove(http->buffer, http->buffer + buflen, http->used); | |
1809 | } | |
c1420c87 MS |
1810 | |
1811 | DEBUG_printf(("2httpPeek: length=%d, avail_in=%d", (int)length, | |
0fa6c7fa | 1812 | (int)http->stream.avail_in)); |
c1420c87 MS |
1813 | |
1814 | if (inflateCopy(&stream, &(http->stream)) != Z_OK) | |
1815 | { | |
1816 | DEBUG_puts("2httpPeek: Unable to copy decompressor stream."); | |
1817 | http->error = ENOMEM; | |
1818 | return (-1); | |
1819 | } | |
1820 | ||
c1420c87 MS |
1821 | stream.next_out = (Bytef *)buffer; |
1822 | stream.avail_out = length; | |
1823 | ||
1824 | zerr = inflate(&stream, Z_SYNC_FLUSH); | |
1825 | inflateEnd(&stream); | |
1826 | ||
1827 | if (zerr < Z_OK) | |
1828 | { | |
1829 | DEBUG_printf(("2httpPeek: zerr=%d", zerr)); | |
0fa6c7fa MS |
1830 | #ifdef DEBUG |
1831 | http_debug_hex("2httpPeek", (char *)http->dbuffer, | |
1832 | http->stream.avail_in); | |
1833 | #endif /* DEBUG */ | |
1834 | ||
c1420c87 MS |
1835 | http->error = EIO; |
1836 | return (-1); | |
1837 | } | |
1838 | ||
1839 | bytes = length - http->stream.avail_out; | |
db8b865d MS |
1840 | |
1841 | # else | |
1842 | DEBUG_puts("2httpPeek: No inflateCopy on this platform, httpPeek does not " | |
1843 | "work with compressed streams."); | |
1844 | return (-1); | |
1845 | # endif /* HAVE_INFLATECOPY */ | |
c1420c87 MS |
1846 | } |
1847 | else | |
1848 | #endif /* HAVE_LIBZ */ | |
6d2f911b MS |
1849 | if (http->used > 0) |
1850 | { | |
1851 | if (length > (size_t)http->used) | |
1852 | length = (size_t)http->used; | |
1853 | ||
1854 | bytes = (ssize_t)length; | |
1855 | ||
a469f8a5 | 1856 | DEBUG_printf(("2httpPeek: grabbing %d bytes from input buffer...", |
6d2f911b MS |
1857 | (int)bytes)); |
1858 | ||
1859 | memcpy(buffer, http->buffer, length); | |
1860 | } | |
1861 | else | |
1862 | bytes = 0; | |
1863 | ||
1864 | if (bytes < 0) | |
1865 | { | |
1866 | #ifdef WIN32 | |
cc754834 MS |
1867 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1868 | bytes = 0; | |
1869 | else | |
1870 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1871 | #else |
1872 | if (errno == EINTR || errno == EAGAIN) | |
1873 | bytes = 0; | |
1874 | else | |
1875 | http->error = errno; | |
1876 | #endif /* WIN32 */ | |
1877 | } | |
1878 | else if (bytes == 0) | |
1879 | { | |
1880 | http->error = EPIPE; | |
1881 | return (0); | |
1882 | } | |
1883 | ||
6d2f911b MS |
1884 | return (bytes); |
1885 | } | |
1886 | ||
1887 | ||
ef416fc2 | 1888 | /* |
1889 | * 'httpPost()' - Send a POST request to the server. | |
1890 | */ | |
1891 | ||
1892 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1893 | httpPost(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1894 | const char *uri) /* I - URI for post */ |
1895 | { | |
cb7f98ee | 1896 | return (http_send(http, HTTP_STATE_POST, uri)); |
ef416fc2 | 1897 | } |
1898 | ||
1899 | ||
1900 | /* | |
1901 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1902 | * |
1903 | * @private@ | |
ef416fc2 | 1904 | */ |
1905 | ||
1906 | int /* O - Number of bytes written */ | |
e6b1a6a9 | 1907 | httpPrintf(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1908 | const char *format, /* I - printf-style format string */ |
1909 | ...) /* I - Additional args as needed */ | |
1910 | { | |
1911 | int bytes; /* Number of bytes to write */ | |
1912 | char buf[16384]; /* Buffer for formatted string */ | |
1913 | va_list ap; /* Variable argument pointer */ | |
1914 | ||
1915 | ||
e07d4801 | 1916 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1917 | |
1918 | va_start(ap, format); | |
1919 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1920 | va_end(ap); | |
1921 | ||
a469f8a5 | 1922 | DEBUG_printf(("3httpPrintf: (%d bytes) %s", bytes, buf)); |
ef416fc2 | 1923 | |
a469f8a5 | 1924 | if (http->data_encoding == HTTP_ENCODING_FIELDS) |
d09495fa | 1925 | return (httpWrite2(http, buf, bytes)); |
1926 | else | |
ef416fc2 | 1927 | { |
d09495fa | 1928 | if (http->wused) |
1929 | { | |
e07d4801 | 1930 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1931 | |
d09495fa | 1932 | if (httpFlushWrite(http) < 0) |
1933 | return (-1); | |
1934 | } | |
ef416fc2 | 1935 | |
d09495fa | 1936 | return (http_write(http, buf, bytes)); |
1937 | } | |
ef416fc2 | 1938 | } |
1939 | ||
1940 | ||
1941 | /* | |
1942 | * 'httpPut()' - Send a PUT request to the server. | |
1943 | */ | |
1944 | ||
1945 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1946 | httpPut(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1947 | const char *uri) /* I - URI to put */ |
1948 | { | |
e07d4801 | 1949 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1950 | return (http_send(http, HTTP_STATE_PUT, uri)); |
ef416fc2 | 1951 | } |
1952 | ||
1953 | ||
1954 | /* | |
1955 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1956 | * |
1957 | * This function is deprecated. Use the httpRead2() function which can | |
1958 | * read more than 2GB of data. | |
1959 | * | |
1960 | * @deprecated@ | |
ef416fc2 | 1961 | */ |
1962 | ||
1963 | int /* O - Number of bytes read */ | |
e6b1a6a9 | 1964 | httpRead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1965 | char *buffer, /* I - Buffer for data */ |
1966 | int length) /* I - Maximum number of bytes */ | |
1967 | { | |
a4d04587 | 1968 | return ((int)httpRead2(http, buffer, length)); |
1969 | } | |
1970 | ||
1971 | ||
1972 | /* | |
1973 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1974 | * |
f3c17241 | 1975 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 1976 | */ |
1977 | ||
1978 | ssize_t /* O - Number of bytes read */ | |
e6b1a6a9 | 1979 | httpRead2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 1980 | char *buffer, /* I - Buffer for data */ |
1981 | size_t length) /* I - Maximum number of bytes */ | |
1982 | { | |
1983 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1984 | |
1985 | ||
db8b865d | 1986 | #ifdef HAVE_LIBZ |
a469f8a5 | 1987 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT |
0fa6c7fa | 1988 | ") coding=%d data_encoding=%d data_remaining=" CUPS_LLFMT, |
db8b865d MS |
1989 | http, buffer, CUPS_LLCAST length, |
1990 | http->coding, | |
0fa6c7fa | 1991 | http->data_encoding, CUPS_LLCAST http->data_remaining)); |
db8b865d MS |
1992 | #else |
1993 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT | |
1994 | ") data_encoding=%d data_remaining=" CUPS_LLFMT, | |
1995 | http, buffer, CUPS_LLCAST length, | |
1996 | http->data_encoding, CUPS_LLCAST http->data_remaining)); | |
1997 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 1998 | |
1999 | if (http == NULL || buffer == NULL) | |
2000 | return (-1); | |
2001 | ||
2002 | http->activity = time(NULL); | |
f11a948a | 2003 | http->error = 0; |
ef416fc2 | 2004 | |
2005 | if (length <= 0) | |
2006 | return (0); | |
2007 | ||
a469f8a5 | 2008 | #ifdef HAVE_LIBZ |
0fa6c7fa | 2009 | if (http->coding) |
ef416fc2 | 2010 | { |
0fa6c7fa | 2011 | do |
f228370c | 2012 | { |
0fa6c7fa | 2013 | if (http->stream.avail_in > 0) |
f228370c | 2014 | { |
0fa6c7fa | 2015 | int zerr; /* Decompressor error */ |
f228370c | 2016 | |
0fa6c7fa MS |
2017 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d", |
2018 | (int)http->stream.avail_in, (int)length)); | |
ef416fc2 | 2019 | |
0fa6c7fa MS |
2020 | http->stream.next_out = (Bytef *)buffer; |
2021 | http->stream.avail_out = length; | |
83e08001 | 2022 | |
0fa6c7fa | 2023 | if ((zerr = inflate(&(http->stream), Z_SYNC_FLUSH)) < Z_OK) |
83e08001 | 2024 | { |
0fa6c7fa | 2025 | DEBUG_printf(("2httpRead2: zerr=%d", zerr)); |
12f89d24 | 2026 | #ifdef DEBUG |
0fa6c7fa MS |
2027 | http_debug_hex("2httpRead2", (char *)http->dbuffer, |
2028 | http->stream.avail_in); | |
12f89d24 | 2029 | #endif /* DEBUG */ |
83e08001 | 2030 | |
0fa6c7fa MS |
2031 | http->error = EIO; |
2032 | return (-1); | |
2033 | } | |
a469f8a5 | 2034 | |
0fa6c7fa | 2035 | bytes = length - http->stream.avail_out; |
a469f8a5 | 2036 | |
0fa6c7fa MS |
2037 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d, bytes=%d", |
2038 | http->stream.avail_in, http->stream.avail_out, | |
2039 | (int)bytes)); | |
2040 | } | |
2041 | else | |
2042 | bytes = 0; | |
a469f8a5 | 2043 | |
0fa6c7fa MS |
2044 | if (bytes == 0) |
2045 | { | |
2046 | ssize_t buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
2047 | /* Additional bytes for buffer */ | |
a469f8a5 | 2048 | |
0fa6c7fa MS |
2049 | if (buflen > 0) |
2050 | { | |
2051 | if (http->stream.avail_in > 0 && | |
2052 | http->stream.next_in > http->dbuffer) | |
2053 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
2054 | ||
2055 | http->stream.next_in = http->dbuffer; | |
2056 | ||
2057 | DEBUG_printf(("1httpRead2: Reading up to %d more bytes of data into " | |
2058 | "decompression buffer.", (int)buflen)); | |
2059 | ||
2060 | if (http->data_remaining > 0) | |
2061 | { | |
2062 | if (buflen > http->data_remaining) | |
2063 | buflen = http->data_remaining; | |
2064 | ||
2065 | bytes = http_read_buffered(http, | |
2066 | (char *)http->dbuffer + | |
2067 | http->stream.avail_in, buflen); | |
2068 | } | |
2069 | else if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2070 | bytes = http_read_chunk(http, | |
2071 | (char *)http->dbuffer + | |
2072 | http->stream.avail_in, buflen); | |
2073 | else | |
2074 | bytes = 0; | |
2075 | ||
2076 | if (bytes < 0) | |
2077 | return (bytes); | |
2078 | else if (bytes == 0) | |
2079 | break; | |
2080 | ||
db8b865d MS |
2081 | DEBUG_printf(("1httpRead2: Adding " CUPS_LLFMT " bytes to " |
2082 | "decompression buffer.", CUPS_LLCAST bytes)); | |
2083 | ||
0fa6c7fa MS |
2084 | http->data_remaining -= bytes; |
2085 | http->stream.avail_in += bytes; | |
db8b865d | 2086 | |
cb7f98ee MS |
2087 | if (http->data_remaining <= 0 && |
2088 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2089 | { | |
2090 | /* | |
2091 | * Read the trailing blank line now... | |
2092 | */ | |
2093 | ||
2094 | char len[32]; /* Length string */ | |
2095 | ||
2096 | httpGets(len, sizeof(len), http); | |
2097 | } | |
2098 | ||
db8b865d | 2099 | bytes = 0; |
0fa6c7fa MS |
2100 | } |
2101 | else | |
2102 | return (0); | |
2103 | } | |
a469f8a5 | 2104 | } |
0fa6c7fa | 2105 | while (bytes == 0); |
a469f8a5 MS |
2106 | } |
2107 | else | |
2108 | #endif /* HAVE_LIBZ */ | |
0fa6c7fa | 2109 | if (http->data_remaining == 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 2110 | { |
0fa6c7fa | 2111 | if ((bytes = http_read_chunk(http, buffer, length)) > 0) |
cb7f98ee | 2112 | { |
0fa6c7fa | 2113 | http->data_remaining -= bytes; |
cb7f98ee MS |
2114 | |
2115 | if (http->data_remaining <= 0) | |
2116 | { | |
2117 | /* | |
2118 | * Read the trailing blank line now... | |
2119 | */ | |
2120 | ||
2121 | char len[32]; /* Length string */ | |
2122 | ||
2123 | httpGets(len, sizeof(len), http); | |
2124 | } | |
2125 | } | |
ef416fc2 | 2126 | } |
0fa6c7fa | 2127 | else if (http->data_remaining <= 0) |
ef416fc2 | 2128 | { |
0fa6c7fa MS |
2129 | /* |
2130 | * No more data to read... | |
2131 | */ | |
ef416fc2 | 2132 | |
0fa6c7fa | 2133 | return (0); |
ef416fc2 | 2134 | } |
ef416fc2 | 2135 | else |
2136 | { | |
0fa6c7fa MS |
2137 | DEBUG_printf(("1httpRead2: Reading up to %d bytes into buffer.", |
2138 | (int)length)); | |
ef416fc2 | 2139 | |
db8b865d MS |
2140 | if (length > (size_t)http->data_remaining) |
2141 | length = (size_t)http->data_remaining; | |
ef416fc2 | 2142 | |
0fa6c7fa | 2143 | if ((bytes = http_read_buffered(http, buffer, length)) > 0) |
cb7f98ee | 2144 | { |
0fa6c7fa | 2145 | http->data_remaining -= bytes; |
cb7f98ee MS |
2146 | |
2147 | if (http->data_remaining <= 0 && | |
2148 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2149 | { | |
2150 | /* | |
2151 | * Read the trailing blank line now... | |
2152 | */ | |
2153 | ||
2154 | char len[32]; /* Length string */ | |
2155 | ||
2156 | httpGets(len, sizeof(len), http); | |
2157 | } | |
2158 | } | |
ef416fc2 | 2159 | } |
2160 | ||
0fa6c7fa MS |
2161 | if ( |
2162 | #ifdef HAVE_LIBZ | |
2163 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0) && | |
2164 | #endif /* HAVE_LIBZ */ | |
2165 | ((http->data_remaining <= 0 && | |
2166 | http->data_encoding == HTTP_ENCODING_LENGTH) || | |
2167 | (http->data_encoding == HTTP_ENCODING_CHUNKED && bytes == 0))) | |
ef416fc2 | 2168 | { |
a469f8a5 | 2169 | #ifdef HAVE_LIBZ |
0fa6c7fa MS |
2170 | if (http->coding) |
2171 | http_content_coding_finish(http); | |
a469f8a5 MS |
2172 | #endif /* HAVE_LIBZ */ |
2173 | ||
0fa6c7fa MS |
2174 | if (http->state == HTTP_STATE_POST_RECV) |
2175 | http->state ++; | |
6961465f MS |
2176 | else if (http->state == HTTP_STATE_GET_SEND || |
2177 | http->state == HTTP_STATE_POST_SEND) | |
2178 | http->state = HTTP_STATE_WAITING; | |
0fa6c7fa | 2179 | else |
cb7f98ee | 2180 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 2181 | |
0fa6c7fa | 2182 | DEBUG_printf(("1httpRead2: End of content, set state to %s.", |
48bd1142 | 2183 | httpStateString(http->state))); |
ef416fc2 | 2184 | } |
2185 | ||
ef416fc2 | 2186 | return (bytes); |
2187 | } | |
2188 | ||
2189 | ||
ef416fc2 | 2190 | /* |
a469f8a5 MS |
2191 | * 'httpReadRequest()' - Read a HTTP request from a connection. |
2192 | * | |
9c0e8e5d | 2193 | * @since CUPS 1.7/OS X 10.9@ |
ef416fc2 | 2194 | */ |
2195 | ||
a469f8a5 MS |
2196 | http_state_t /* O - New state of connection */ |
2197 | httpReadRequest(http_t *http, /* I - HTTP connection */ | |
2198 | char *uri, /* I - URI buffer */ | |
2199 | size_t urilen) /* I - Size of URI buffer */ | |
dcb445bc | 2200 | { |
a469f8a5 MS |
2201 | char line[4096], /* HTTP request line */ |
2202 | *req_method, /* HTTP request method */ | |
2203 | *req_uri, /* HTTP request URI */ | |
2204 | *req_version; /* HTTP request version number string */ | |
dcb445bc MS |
2205 | |
2206 | ||
a469f8a5 MS |
2207 | /* |
2208 | * Range check input... | |
2209 | */ | |
ef416fc2 | 2210 | |
a469f8a5 MS |
2211 | DEBUG_printf(("httpReadRequest(http=%p, uri=%p, urilen=" CUPS_LLFMT ")", |
2212 | http, uri, CUPS_LLCAST urilen)); | |
ef416fc2 | 2213 | |
a469f8a5 MS |
2214 | if (uri) |
2215 | *uri = '\0'; | |
ef416fc2 | 2216 | |
a469f8a5 | 2217 | if (!http || !uri || urilen < 1) |
dcb445bc | 2218 | { |
a469f8a5 MS |
2219 | DEBUG_puts("1httpReadRequest: Bad arguments, returning HTTP_STATE_ERROR."); |
2220 | return (HTTP_STATE_ERROR); | |
dcb445bc | 2221 | } |
a469f8a5 | 2222 | else if (http->state != HTTP_STATE_WAITING) |
1ff0402e | 2223 | { |
a469f8a5 | 2224 | DEBUG_printf(("1httpReadRequest: Bad state %s, returning HTTP_STATE_ERROR.", |
48bd1142 | 2225 | httpStateString(http->state))); |
a469f8a5 | 2226 | return (HTTP_STATE_ERROR); |
1ff0402e | 2227 | } |
ef416fc2 | 2228 | |
2229 | /* | |
a469f8a5 | 2230 | * Reset state... |
ef416fc2 | 2231 | */ |
2232 | ||
a469f8a5 | 2233 | httpClearFields(http); |
ef416fc2 | 2234 | |
a469f8a5 MS |
2235 | http->activity = time(NULL); |
2236 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
2237 | http->data_remaining = 0; | |
2238 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2239 | http->status = HTTP_STATUS_OK; | |
2240 | http->version = HTTP_VERSION_1_1; | |
bd7854cb | 2241 | |
a29fd7dd | 2242 | /* |
a469f8a5 | 2243 | * Read a line from the socket... |
a29fd7dd MS |
2244 | */ |
2245 | ||
a469f8a5 MS |
2246 | if (!httpGets(line, sizeof(line), http)) |
2247 | { | |
2248 | DEBUG_puts("1httpReadRequest: Unable to read, returning HTTP_STATE_ERROR"); | |
2249 | return (HTTP_STATE_ERROR); | |
2250 | } | |
2251 | ||
2252 | if (!line[0]) | |
2253 | { | |
2254 | DEBUG_puts("1httpReadRequest: Blank line, returning HTTP_STATE_WAITING"); | |
2255 | return (HTTP_STATE_WAITING); | |
2256 | } | |
2257 | ||
2258 | DEBUG_printf(("1httpReadRequest: %s", line)); | |
2259 | ||
2260 | /* | |
2261 | * Parse it... | |
2262 | */ | |
2263 | ||
2264 | req_method = line; | |
2265 | req_uri = line; | |
2266 | ||
2267 | while (*req_uri && !isspace(*req_uri & 255)) | |
2268 | req_uri ++; | |
2269 | ||
2270 | if (!*req_uri) | |
2271 | { | |
2272 | DEBUG_puts("1httpReadRequest: No request URI."); | |
d21dc0ed | 2273 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request URI."), 1); |
a469f8a5 MS |
2274 | return (HTTP_STATE_ERROR); |
2275 | } | |
2276 | ||
2277 | *req_uri++ = '\0'; | |
2278 | ||
2279 | while (*req_uri && isspace(*req_uri & 255)) | |
2280 | req_uri ++; | |
2281 | ||
2282 | req_version = req_uri; | |
2283 | ||
2284 | while (*req_version && !isspace(*req_version & 255)) | |
2285 | req_version ++; | |
2286 | ||
2287 | if (!*req_version) | |
2288 | { | |
2289 | DEBUG_puts("1httpReadRequest: No request protocol version."); | |
d21dc0ed | 2290 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request protocol version."), 1); |
a469f8a5 MS |
2291 | return (HTTP_STATE_ERROR); |
2292 | } | |
2293 | ||
2294 | *req_version++ = '\0'; | |
2295 | ||
2296 | while (*req_version && isspace(*req_version & 255)) | |
2297 | req_version ++; | |
2298 | ||
2299 | /* | |
2300 | * Validate... | |
2301 | */ | |
2302 | ||
2303 | if (!strcmp(req_method, "OPTIONS")) | |
2304 | http->state = HTTP_STATE_OPTIONS; | |
2305 | else if (!strcmp(req_method, "GET")) | |
2306 | http->state = HTTP_STATE_GET; | |
2307 | else if (!strcmp(req_method, "HEAD")) | |
2308 | http->state = HTTP_STATE_HEAD; | |
2309 | else if (!strcmp(req_method, "POST")) | |
2310 | http->state = HTTP_STATE_POST; | |
2311 | else if (!strcmp(req_method, "PUT")) | |
2312 | http->state = HTTP_STATE_PUT; | |
2313 | else if (!strcmp(req_method, "DELETE")) | |
2314 | http->state = HTTP_STATE_DELETE; | |
2315 | else if (!strcmp(req_method, "TRACE")) | |
2316 | http->state = HTTP_STATE_TRACE; | |
2317 | else if (!strcmp(req_method, "CONNECT")) | |
2318 | http->state = HTTP_STATE_CONNECT; | |
2319 | else | |
2320 | { | |
2321 | DEBUG_printf(("1httpReadRequest: Unknown method \"%s\".", req_method)); | |
d21dc0ed | 2322 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request method."), 1); |
a469f8a5 MS |
2323 | return (HTTP_STATE_UNKNOWN_METHOD); |
2324 | } | |
2325 | ||
2326 | DEBUG_printf(("1httpReadRequest: Set state to %s.", | |
48bd1142 | 2327 | httpStateString(http->state))); |
a469f8a5 MS |
2328 | |
2329 | if (!strcmp(req_version, "HTTP/1.0")) | |
2330 | { | |
2331 | http->version = HTTP_VERSION_1_0; | |
2332 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2333 | } | |
2334 | else if (!strcmp(req_version, "HTTP/1.1")) | |
2335 | { | |
2336 | http->version = HTTP_VERSION_1_1; | |
2337 | http->keep_alive = HTTP_KEEPALIVE_ON; | |
2338 | } | |
2339 | else | |
2340 | { | |
2341 | DEBUG_printf(("1httpReadRequest: Unknown version \"%s\".", req_version)); | |
d21dc0ed | 2342 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request version."), 1); |
a469f8a5 MS |
2343 | return (HTTP_STATE_UNKNOWN_VERSION); |
2344 | } | |
2345 | ||
2346 | DEBUG_printf(("1httpReadRequest: URI is \"%s\".", req_uri)); | |
2347 | strlcpy(uri, req_uri, urilen); | |
2348 | ||
2349 | return (http->state); | |
2350 | } | |
2351 | ||
2352 | ||
2353 | /* | |
2354 | * 'httpReconnect()' - Reconnect to a HTTP server. | |
2355 | * | |
2356 | * This function is deprecated. Please use the @link httpReconnect2@ function | |
2357 | * instead. | |
2358 | * | |
2359 | * @deprecated@ | |
2360 | */ | |
2361 | ||
2362 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2363 | httpReconnect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
2364 | { |
2365 | DEBUG_printf(("httpReconnect(http=%p)", http)); | |
2366 | ||
2367 | return (httpReconnect2(http, 30000, NULL)); | |
2368 | } | |
2369 | ||
2370 | ||
2371 | /* | |
2372 | * 'httpReconnect2()' - Reconnect to a HTTP server with timeout and optional | |
2373 | * cancel. | |
2374 | */ | |
2375 | ||
2376 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2377 | httpReconnect2(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
2378 | int msec, /* I - Timeout in milliseconds */ |
2379 | int *cancel) /* I - Pointer to "cancel" variable */ | |
2380 | { | |
2381 | http_addrlist_t *addr; /* Connected address */ | |
2382 | #ifdef DEBUG | |
2383 | http_addrlist_t *current; /* Current address */ | |
2384 | char temp[256]; /* Temporary address string */ | |
2385 | #endif /* DEBUG */ | |
2386 | ||
2387 | ||
2388 | DEBUG_printf(("httpReconnect2(http=%p, msec=%d, cancel=%p)", http, msec, | |
2389 | cancel)); | |
2390 | ||
2391 | if (!http) | |
2392 | { | |
cb7f98ee | 2393 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
a469f8a5 MS |
2394 | return (-1); |
2395 | } | |
2396 | ||
2397 | #ifdef HAVE_SSL | |
2398 | if (http->tls) | |
2399 | { | |
2400 | DEBUG_puts("2httpReconnect2: Shutting down SSL/TLS..."); | |
2c85b752 | 2401 | http_tls_stop(http); |
a469f8a5 MS |
2402 | } |
2403 | #endif /* HAVE_SSL */ | |
2404 | ||
2405 | /* | |
2406 | * Close any previously open socket... | |
2407 | */ | |
2408 | ||
2409 | if (http->fd >= 0) | |
2410 | { | |
2411 | DEBUG_printf(("2httpReconnect2: Closing socket %d...", http->fd)); | |
2412 | ||
87e98392 | 2413 | httpAddrClose(NULL, http->fd); |
a469f8a5 MS |
2414 | |
2415 | http->fd = -1; | |
2416 | } | |
2417 | ||
2418 | /* | |
2419 | * Reset all state (except fields, which may be reused)... | |
2420 | */ | |
2421 | ||
2422 | http->state = HTTP_STATE_WAITING; | |
a469f8a5 MS |
2423 | http->version = HTTP_VERSION_1_1; |
2424 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
a29fd7dd | 2425 | memset(&http->_hostaddr, 0, sizeof(http->_hostaddr)); |
a469f8a5 | 2426 | http->data_encoding = HTTP_ENCODING_FIELDS; |
a29fd7dd MS |
2427 | http->_data_remaining = 0; |
2428 | http->used = 0; | |
a29fd7dd MS |
2429 | http->data_remaining = 0; |
2430 | http->hostaddr = NULL; | |
2431 | http->wused = 0; | |
2432 | ||
ef416fc2 | 2433 | /* |
2434 | * Connect to the server... | |
2435 | */ | |
2436 | ||
1ff0402e MS |
2437 | #ifdef DEBUG |
2438 | for (current = http->addrlist; current; current = current->next) | |
12f89d24 | 2439 | DEBUG_printf(("2httpReconnect2: Address %s:%d", |
1ff0402e | 2440 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
a469f8a5 | 2441 | httpAddrPort(&(current->addr)))); |
1ff0402e MS |
2442 | #endif /* DEBUG */ |
2443 | ||
dcb445bc MS |
2444 | if ((addr = httpAddrConnect2(http->addrlist, &(http->fd), msec, |
2445 | cancel)) == NULL) | |
ef416fc2 | 2446 | { |
2447 | /* | |
2448 | * Unable to connect... | |
2449 | */ | |
2450 | ||
2451 | #ifdef WIN32 | |
2452 | http->error = WSAGetLastError(); | |
2453 | #else | |
2454 | http->error = errno; | |
2455 | #endif /* WIN32 */ | |
cb7f98ee | 2456 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 2457 | |
12f89d24 | 2458 | DEBUG_printf(("1httpReconnect2: httpAddrConnect failed: %s", |
1ff0402e MS |
2459 | strerror(http->error))); |
2460 | ||
ef416fc2 | 2461 | return (-1); |
2462 | } | |
2463 | ||
12f89d24 | 2464 | DEBUG_printf(("2httpReconnect2: New socket=%d", http->fd)); |
1ff0402e | 2465 | |
85dda01c MS |
2466 | if (http->timeout_value > 0) |
2467 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2468 | |
ef416fc2 | 2469 | http->hostaddr = &(addr->addr); |
2470 | http->error = 0; | |
ef416fc2 | 2471 | |
2472 | #ifdef HAVE_SSL | |
cb7f98ee | 2473 | if (http->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 2474 | { |
2475 | /* | |
2476 | * Always do encryption via SSL. | |
2477 | */ | |
2478 | ||
2c85b752 | 2479 | if (http_tls_start(http) != 0) |
ef416fc2 | 2480 | { |
87e98392 | 2481 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2482 | |
2483 | return (-1); | |
2484 | } | |
2485 | } | |
cb7f98ee | 2486 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls_upgrade) |
2c85b752 | 2487 | return (http_tls_upgrade(http)); |
ef416fc2 | 2488 | #endif /* HAVE_SSL */ |
2489 | ||
12f89d24 | 2490 | DEBUG_printf(("1httpReconnect2: Connected to %s:%d...", |
1ff0402e | 2491 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
a469f8a5 | 2492 | httpAddrPort(http->hostaddr))); |
1ff0402e | 2493 | |
ef416fc2 | 2494 | return (0); |
2495 | } | |
2496 | ||
2497 | ||
355e94dc MS |
2498 | /* |
2499 | * 'httpSetAuthString()' - Set the current authorization string. | |
2500 | * | |
2501 | * This function just stores a copy of the current authorization string in | |
2502 | * the HTTP connection object. You must still call httpSetField() to set | |
2503 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2504 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2505 | * | |
f3c17241 | 2506 | * @since CUPS 1.3/OS X 10.5@ |
355e94dc MS |
2507 | */ |
2508 | ||
2509 | void | |
e6b1a6a9 | 2510 | httpSetAuthString(http_t *http, /* I - HTTP connection */ |
355e94dc MS |
2511 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2512 | const char *data) /* I - Auth data (NULL for none) */ | |
2513 | { | |
2514 | /* | |
2515 | * Range check input... | |
2516 | */ | |
2517 | ||
2518 | if (!http) | |
2519 | return; | |
2520 | ||
2521 | if (http->authstring && http->authstring != http->_authstring) | |
2522 | free(http->authstring); | |
2523 | ||
2524 | http->authstring = http->_authstring; | |
2525 | ||
2526 | if (scheme) | |
2527 | { | |
2528 | /* | |
2529 | * Set the current authorization string... | |
2530 | */ | |
2531 | ||
2532 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 2533 | char *temp; |
355e94dc MS |
2534 | |
2535 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
2536 | { |
2537 | if ((temp = malloc(len)) == NULL) | |
2538 | len = sizeof(http->_authstring); | |
2539 | else | |
2540 | http->authstring = temp; | |
2541 | } | |
355e94dc MS |
2542 | |
2543 | if (data) | |
2544 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2545 | else | |
2546 | strlcpy(http->authstring, scheme, len); | |
2547 | } | |
2548 | else | |
2549 | { | |
2550 | /* | |
2551 | * Clear the current authorization string... | |
2552 | */ | |
2553 | ||
2554 | http->_authstring[0] = '\0'; | |
2555 | } | |
2556 | } | |
2557 | ||
2558 | ||
7cf5915e MS |
2559 | /* |
2560 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2561 | * connection. | |
2562 | * | |
f3c17241 | 2563 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
2564 | */ |
2565 | ||
2566 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2567 | httpSetCredentials(http_t *http, /* I - HTTP connection */ |
7cf5915e MS |
2568 | cups_array_t *credentials) /* I - Array of credentials */ |
2569 | { | |
2570 | if (!http || cupsArrayCount(credentials) < 1) | |
2571 | return (-1); | |
2572 | ||
2573 | _httpFreeCredentials(http->tls_credentials); | |
2574 | ||
85dda01c | 2575 | http->tls_credentials = _httpCreateCredentials(credentials); |
7cf5915e MS |
2576 | |
2577 | return (http->tls_credentials ? 0 : -1); | |
2578 | } | |
2579 | ||
2580 | ||
ef416fc2 | 2581 | /* |
6d2f911b | 2582 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2583 | * |
f3c17241 | 2584 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 2585 | */ |
2586 | ||
2587 | void | |
2588 | httpSetCookie(http_t *http, /* I - Connection */ | |
2589 | const char *cookie) /* I - Cookie string */ | |
2590 | { | |
2591 | if (!http) | |
2592 | return; | |
2593 | ||
2594 | if (http->cookie) | |
2595 | free(http->cookie); | |
2596 | ||
2597 | if (cookie) | |
2598 | http->cookie = strdup(cookie); | |
2599 | else | |
2600 | http->cookie = NULL; | |
2601 | } | |
2602 | ||
2603 | ||
c1420c87 MS |
2604 | /* |
2605 | * 'httpSetDefaultField()' - Set the default value of an HTTP header. | |
2606 | * | |
6961465f MS |
2607 | * Currently only @code HTTP_FIELD_ACCEPT_ENCODING@, @code HTTP_FIELD_SERVER@, |
2608 | * and @code HTTP_FIELD_USER_AGENT@ can be set. | |
c1420c87 | 2609 | * |
9c0e8e5d | 2610 | * @since CUPS 1.7/OS X 10.9@ |
c1420c87 MS |
2611 | */ |
2612 | ||
2613 | void | |
e6b1a6a9 | 2614 | httpSetDefaultField(http_t *http, /* I - HTTP connection */ |
c1420c87 MS |
2615 | http_field_t field, /* I - Field index */ |
2616 | const char *value)/* I - Value */ | |
2617 | { | |
2618 | DEBUG_printf(("httpSetDefaultField(http=%p, field=%d(%s), value=\"%s\")", | |
2619 | http, field, http_fields[field], value)); | |
2620 | ||
2621 | if (!http) | |
2622 | return; | |
2623 | ||
2624 | switch (field) | |
2625 | { | |
2626 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2627 | if (http->default_accept_encoding) | |
2628 | _cupsStrFree(http->default_accept_encoding); | |
2629 | ||
2630 | http->default_accept_encoding = value ? _cupsStrAlloc(value) : NULL; | |
2631 | break; | |
2632 | ||
2633 | case HTTP_FIELD_SERVER : | |
2634 | if (http->default_server) | |
2635 | _cupsStrFree(http->default_server); | |
2636 | ||
2637 | http->default_server = value ? _cupsStrAlloc(value) : NULL; | |
2638 | break; | |
2639 | ||
2640 | case HTTP_FIELD_USER_AGENT : | |
2641 | if (http->default_user_agent) | |
2642 | _cupsStrFree(http->default_user_agent); | |
2643 | ||
2644 | http->default_user_agent = value ? _cupsStrAlloc(value) : NULL; | |
2645 | break; | |
2646 | ||
2647 | default : | |
2648 | DEBUG_puts("1httpSetDefaultField: Ignored."); | |
2649 | break; | |
2650 | } | |
2651 | } | |
2652 | ||
2653 | ||
b423cd4c | 2654 | /* |
2655 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2656 | * | |
a469f8a5 MS |
2657 | * Currently only @code HTTP_STATUS_CONTINUE@ is supported for the "expect" |
2658 | * argument. | |
b423cd4c | 2659 | * |
f3c17241 | 2660 | * @since CUPS 1.2/OS X 10.5@ |
b423cd4c | 2661 | */ |
2662 | ||
2663 | void | |
e6b1a6a9 | 2664 | httpSetExpect(http_t *http, /* I - HTTP connection */ |
a469f8a5 | 2665 | http_status_t expect) /* I - HTTP status to expect |
cb7f98ee | 2666 | (@code HTTP_STATUS_CONTINUE@) */ |
b423cd4c | 2667 | { |
cb7f98ee MS |
2668 | DEBUG_printf(("httpSetExpect(http=%p, expect=%d)", http, expect)); |
2669 | ||
b423cd4c | 2670 | if (http) |
2671 | http->expect = expect; | |
2672 | } | |
2673 | ||
2674 | ||
ef416fc2 | 2675 | /* |
2676 | * 'httpSetField()' - Set the value of an HTTP header. | |
2677 | */ | |
2678 | ||
2679 | void | |
e6b1a6a9 | 2680 | httpSetField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2681 | http_field_t field, /* I - Field index */ |
2682 | const char *value) /* I - Value */ | |
2683 | { | |
a469f8a5 MS |
2684 | DEBUG_printf(("httpSetField(http=%p, field=%d(%s), value=\"%s\")", http, |
2685 | field, http_fields[field], value)); | |
2686 | ||
ef416fc2 | 2687 | if (http == NULL || |
2688 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
a469f8a5 | 2689 | field >= HTTP_FIELD_MAX || |
ef416fc2 | 2690 | value == NULL) |
2691 | return; | |
2692 | ||
a469f8a5 MS |
2693 | switch (field) |
2694 | { | |
2695 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2696 | if (http->accept_encoding) | |
2697 | _cupsStrFree(http->accept_encoding); | |
2698 | ||
2699 | http->accept_encoding = _cupsStrAlloc(value); | |
2700 | break; | |
2701 | ||
2702 | case HTTP_FIELD_ALLOW : | |
2703 | if (http->allow) | |
2704 | _cupsStrFree(http->allow); | |
2705 | ||
2706 | http->allow = _cupsStrAlloc(value); | |
2707 | break; | |
2708 | ||
2709 | case HTTP_FIELD_SERVER : | |
2710 | if (http->server) | |
2711 | _cupsStrFree(http->server); | |
2712 | ||
2713 | http->server = _cupsStrAlloc(value); | |
2714 | break; | |
2715 | ||
2716 | default : | |
2717 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
2718 | break; | |
2719 | } | |
f7deaa1a | 2720 | |
f7deaa1a | 2721 | if (field == HTTP_FIELD_AUTHORIZATION) |
2722 | { | |
e07d4801 MS |
2723 | /* |
2724 | * Special case for Authorization: as its contents can be | |
2725 | * longer than HTTP_MAX_VALUE | |
2726 | */ | |
2727 | ||
f7deaa1a | 2728 | if (http->field_authorization) |
2729 | free(http->field_authorization); | |
2730 | ||
2731 | http->field_authorization = strdup(value); | |
2732 | } | |
e07d4801 MS |
2733 | else if (field == HTTP_FIELD_HOST) |
2734 | { | |
2735 | /* | |
f11a948a MS |
2736 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2737 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2738 | */ |
2739 | ||
178cb736 MS |
2740 | char *ptr = strchr(value, ':'); |
2741 | ||
2742 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2743 | { |
2744 | /* | |
2745 | * Bracket IPv6 numeric addresses... | |
2746 | * | |
2747 | * This is slightly inefficient (basically copying twice), but is an edge | |
2748 | * case and not worth optimizing... | |
2749 | */ | |
e07d4801 | 2750 | |
f11a948a MS |
2751 | snprintf(http->fields[HTTP_FIELD_HOST], |
2752 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2753 | } | |
2754 | else | |
e07d4801 | 2755 | { |
f11a948a MS |
2756 | /* |
2757 | * Check for a trailing dot on the hostname... | |
2758 | */ | |
2759 | ||
178cb736 | 2760 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2761 | |
2762 | if (*ptr) | |
2763 | { | |
2764 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2765 | |
f11a948a MS |
2766 | if (*ptr == '.') |
2767 | *ptr = '\0'; | |
2768 | } | |
e07d4801 MS |
2769 | } |
2770 | } | |
a469f8a5 MS |
2771 | #ifdef HAVE_LIBZ |
2772 | else if (field == HTTP_FIELD_CONTENT_ENCODING && | |
2773 | http->data_encoding != HTTP_ENCODING_FIELDS) | |
2774 | { | |
2775 | DEBUG_puts("1httpSetField: Calling http_content_coding_start."); | |
2776 | http_content_coding_start(http, value); | |
2777 | } | |
2778 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2779 | } |
2780 | ||
2781 | ||
e6b1a6a9 MS |
2782 | /* |
2783 | * 'httpSetKeepAlive()' - Set the current Keep-Alive state of a connection. | |
2784 | * | |
2785 | * @since CUPS 2.0@ | |
2786 | */ | |
2787 | ||
2788 | void | |
2789 | httpSetKeepAlive( | |
2790 | http_t *http, /* I - HTTP connection */ | |
2791 | http_keepalive_t keep_alive) /* I - New Keep-Alive value */ | |
2792 | { | |
2793 | if (http) | |
2794 | http->keep_alive = keep_alive; | |
2795 | } | |
2796 | ||
2797 | ||
ef416fc2 | 2798 | /* |
2799 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2800 | * | |
f3c17241 | 2801 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 2802 | */ |
2803 | ||
2804 | void | |
e6b1a6a9 | 2805 | httpSetLength(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2806 | size_t length) /* I - Length (0 for chunked) */ |
2807 | { | |
a469f8a5 MS |
2808 | DEBUG_printf(("httpSetLength(http=%p, length=" CUPS_LLFMT ")", http, |
2809 | CUPS_LLCAST length)); | |
2810 | ||
ef416fc2 | 2811 | if (!http) |
2812 | return; | |
2813 | ||
2814 | if (!length) | |
2815 | { | |
5a9febac MS |
2816 | strlcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked", |
2817 | HTTP_MAX_VALUE); | |
ef416fc2 | 2818 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; |
2819 | } | |
2820 | else | |
2821 | { | |
2822 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2823 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2824 | CUPS_LLFMT, CUPS_LLCAST length); | |
2825 | } | |
2826 | } | |
2827 | ||
2828 | ||
10d09e33 | 2829 | /* |
f228370c | 2830 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2831 | * |
2832 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2833 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2834 | * | |
f3c17241 | 2835 | * @since CUPS 1.5/OS X 10.7@ |
10d09e33 MS |
2836 | */ |
2837 | ||
2838 | void | |
f228370c | 2839 | httpSetTimeout( |
e6b1a6a9 | 2840 | http_t *http, /* I - HTTP connection */ |
f228370c | 2841 | double timeout, /* I - Number of seconds for timeout, |
10d09e33 | 2842 | must be greater than 0 */ |
f228370c MS |
2843 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2844 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2845 | { |
2846 | if (!http || timeout <= 0.0) | |
2847 | return; | |
2848 | ||
85dda01c MS |
2849 | http->timeout_cb = cb; |
2850 | http->timeout_data = user_data; | |
2851 | http->timeout_value = timeout; | |
10d09e33 MS |
2852 | |
2853 | if (http->fd >= 0) | |
85dda01c | 2854 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2855 | |
85dda01c | 2856 | http_set_wait(http); |
10d09e33 MS |
2857 | } |
2858 | ||
2859 | ||
5ec1fd3d MS |
2860 | /* |
2861 | * 'httpShutdown()' - Shutdown one side of an HTTP connection. | |
2862 | * | |
2863 | * @since CUPS 2.0@ | |
2864 | */ | |
2865 | ||
2866 | void | |
2867 | httpShutdown(http_t *http) /* I - HTTP connection */ | |
2868 | { | |
2869 | if (!http || http->fd < 0) | |
2870 | return; | |
2871 | ||
2872 | if (http->tls) | |
d3d89474 | 2873 | http_tls_stop(http); |
5ec1fd3d MS |
2874 | |
2875 | shutdown(http->fd, SHUT_RD); | |
2876 | } | |
2877 | ||
2878 | ||
ef416fc2 | 2879 | /* |
2880 | * 'httpTrace()' - Send an TRACE request to the server. | |
2881 | */ | |
2882 | ||
2883 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2884 | httpTrace(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2885 | const char *uri) /* I - URI for trace */ |
2886 | { | |
cb7f98ee | 2887 | return (http_send(http, HTTP_STATE_TRACE, uri)); |
ef416fc2 | 2888 | } |
2889 | ||
2890 | ||
2891 | /* | |
e60ec91f MS |
2892 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2893 | * | |
2894 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2895 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2896 | */ |
2897 | ||
e60ec91f | 2898 | int /* O - 1 to continue, 0 to stop */ |
e6b1a6a9 | 2899 | _httpUpdate(http_t *http, /* I - HTTP connection */ |
e60ec91f | 2900 | http_status_t *status) /* O - Current HTTP status */ |
ef416fc2 | 2901 | { |
2902 | char line[32768], /* Line from connection... */ | |
2903 | *value; /* Pointer to value on line */ | |
2904 | http_field_t field; /* Field index */ | |
e60ec91f | 2905 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2906 | |
2907 | ||
e60ec91f | 2908 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
48bd1142 | 2909 | httpStateString(http->state))); |
ef416fc2 | 2910 | |
2911 | /* | |
e60ec91f | 2912 | * Grab a single line from the connection... |
ef416fc2 | 2913 | */ |
2914 | ||
e60ec91f | 2915 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2916 | { |
cb7f98ee | 2917 | *status = HTTP_STATUS_ERROR; |
e60ec91f | 2918 | return (0); |
ef416fc2 | 2919 | } |
2920 | ||
e60ec91f | 2921 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2922 | |
e60ec91f | 2923 | if (line[0] == '\0') |
ef416fc2 | 2924 | { |
e60ec91f MS |
2925 | /* |
2926 | * Blank line means the start of the data section (if any). Return | |
2927 | * the result code, too... | |
2928 | * | |
a469f8a5 MS |
2929 | * If we get status 100 (HTTP_STATUS_CONTINUE), then we *don't* change |
2930 | * states. Instead, we just return HTTP_STATUS_CONTINUE to the caller and | |
2931 | * keep on tryin'... | |
e60ec91f | 2932 | */ |
ef416fc2 | 2933 | |
a469f8a5 | 2934 | if (http->status == HTTP_STATUS_CONTINUE) |
ef416fc2 | 2935 | { |
e60ec91f MS |
2936 | *status = http->status; |
2937 | return (0); | |
2938 | } | |
ef416fc2 | 2939 | |
cb7f98ee | 2940 | if (http->status < HTTP_STATUS_BAD_REQUEST) |
e60ec91f | 2941 | http->digest_tries = 0; |
ef416fc2 | 2942 | |
2943 | #ifdef HAVE_SSL | |
cb7f98ee | 2944 | if (http->status == HTTP_STATUS_SWITCHING_PROTOCOLS && !http->tls) |
e60ec91f | 2945 | { |
2c85b752 | 2946 | if (http_tls_start(http) != 0) |
ef416fc2 | 2947 | { |
87e98392 | 2948 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2949 | |
cb7f98ee | 2950 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f | 2951 | return (0); |
ef416fc2 | 2952 | } |
e60ec91f | 2953 | |
a469f8a5 | 2954 | *status = HTTP_STATUS_CONTINUE; |
e60ec91f MS |
2955 | return (0); |
2956 | } | |
ef416fc2 | 2957 | #endif /* HAVE_SSL */ |
2958 | ||
a469f8a5 MS |
2959 | if (http_set_length(http) < 0) |
2960 | { | |
2961 | DEBUG_puts("1_httpUpdate: Bad Content-Length."); | |
2962 | http->error = EINVAL; | |
cb7f98ee | 2963 | http->status = *status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
2964 | return (0); |
2965 | } | |
ef416fc2 | 2966 | |
e60ec91f MS |
2967 | switch (http->state) |
2968 | { | |
c41769ff MS |
2969 | case HTTP_STATE_GET : |
2970 | case HTTP_STATE_POST : | |
a469f8a5 | 2971 | case HTTP_STATE_POST_RECV : |
c41769ff | 2972 | case HTTP_STATE_PUT : |
e60ec91f | 2973 | http->state ++; |
a469f8a5 MS |
2974 | |
2975 | DEBUG_printf(("1_httpUpdate: Set state to %s.", | |
48bd1142 | 2976 | httpStateString(http->state))); |
a469f8a5 | 2977 | |
c41769ff MS |
2978 | case HTTP_STATE_POST_SEND : |
2979 | case HTTP_STATE_HEAD : | |
e60ec91f | 2980 | break; |
ef416fc2 | 2981 | |
e60ec91f | 2982 | default : |
a469f8a5 MS |
2983 | http->state = HTTP_STATE_WAITING; |
2984 | ||
cb7f98ee | 2985 | DEBUG_puts("1_httpUpdate: Reset state to HTTP_STATE_WAITING."); |
e60ec91f | 2986 | break; |
ef416fc2 | 2987 | } |
e60ec91f | 2988 | |
a469f8a5 MS |
2989 | #ifdef HAVE_LIBZ |
2990 | DEBUG_puts("1_httpUpdate: Calling http_content_coding_start."); | |
2991 | http_content_coding_start(http, | |
2992 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
2993 | #endif /* HAVE_LIBZ */ | |
2994 | ||
e60ec91f MS |
2995 | *status = http->status; |
2996 | return (0); | |
2997 | } | |
2998 | else if (!strncmp(line, "HTTP/", 5)) | |
2999 | { | |
3000 | /* | |
3001 | * Got the beginning of a response... | |
3002 | */ | |
3003 | ||
3004 | int intstatus; /* Status value as an integer */ | |
3005 | ||
3006 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
3007 | { | |
cb7f98ee | 3008 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3009 | return (0); |
3010 | } | |
3011 | ||
a469f8a5 MS |
3012 | httpClearFields(http); |
3013 | ||
e60ec91f MS |
3014 | http->version = (http_version_t)(major * 100 + minor); |
3015 | *status = http->status = (http_status_t)intstatus; | |
3016 | } | |
3017 | else if ((value = strchr(line, ':')) != NULL) | |
3018 | { | |
3019 | /* | |
3020 | * Got a value... | |
3021 | */ | |
3022 | ||
3023 | *value++ = '\0'; | |
3024 | while (_cups_isspace(*value)) | |
3025 | value ++; | |
3026 | ||
a469f8a5 MS |
3027 | DEBUG_printf(("1_httpUpdate: Header %s: %s", line, value)); |
3028 | ||
e60ec91f MS |
3029 | /* |
3030 | * Be tolerants of servers that send unknown attribute fields... | |
3031 | */ | |
3032 | ||
88f9aafc | 3033 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 3034 | { |
3035 | /* | |
e60ec91f | 3036 | * "Expect: 100-continue" or similar... |
ef416fc2 | 3037 | */ |
3038 | ||
e60ec91f | 3039 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 3040 | } |
88f9aafc | 3041 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 3042 | { |
3043 | /* | |
e60ec91f | 3044 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 3045 | */ |
3046 | ||
e60ec91f MS |
3047 | httpSetCookie(http, value); |
3048 | } | |
48bd1142 | 3049 | else if ((field = httpFieldValue(line)) != HTTP_FIELD_UNKNOWN) |
e60ec91f MS |
3050 | httpSetField(http, field, value); |
3051 | #ifdef DEBUG | |
3052 | else | |
3053 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
3054 | #endif /* DEBUG */ | |
3055 | } | |
3056 | else | |
3057 | { | |
3058 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
a469f8a5 | 3059 | http->error = EINVAL; |
cb7f98ee | 3060 | http->status = *status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3061 | return (0); |
3062 | } | |
ef416fc2 | 3063 | |
e60ec91f MS |
3064 | return (1); |
3065 | } | |
ef416fc2 | 3066 | |
ef416fc2 | 3067 | |
e60ec91f MS |
3068 | /* |
3069 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
3070 | */ | |
ef416fc2 | 3071 | |
e60ec91f | 3072 | http_status_t /* O - HTTP status */ |
e6b1a6a9 | 3073 | httpUpdate(http_t *http) /* I - HTTP connection */ |
e60ec91f MS |
3074 | { |
3075 | http_status_t status; /* Request status */ | |
3076 | ||
3077 | ||
3078 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
48bd1142 | 3079 | httpStateString(http->state))); |
e60ec91f MS |
3080 | |
3081 | /* | |
3082 | * Flush pending data, if any... | |
3083 | */ | |
3084 | ||
3085 | if (http->wused) | |
3086 | { | |
3087 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
3088 | ||
3089 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 3090 | return (HTTP_STATUS_ERROR); |
ef416fc2 | 3091 | } |
3092 | ||
e60ec91f MS |
3093 | /* |
3094 | * If we haven't issued any commands, then there is nothing to "update"... | |
3095 | */ | |
3096 | ||
a469f8a5 | 3097 | if (http->state == HTTP_STATE_WAITING) |
cb7f98ee | 3098 | return (HTTP_STATUS_CONTINUE); |
e60ec91f MS |
3099 | |
3100 | /* | |
3101 | * Grab all of the lines we can from the connection... | |
3102 | */ | |
3103 | ||
3104 | while (_httpUpdate(http, &status)); | |
3105 | ||
ef416fc2 | 3106 | /* |
3107 | * See if there was an error... | |
3108 | */ | |
3109 | ||
cb7f98ee | 3110 | if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE) |
e07d4801 MS |
3111 | { |
3112 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 3113 | return (http->status); |
e07d4801 | 3114 | } |
ef416fc2 | 3115 | |
3116 | if (http->error) | |
3117 | { | |
e07d4801 | 3118 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 3119 | strerror(http->error))); |
cb7f98ee MS |
3120 | http->status = HTTP_STATUS_ERROR; |
3121 | return (HTTP_STATUS_ERROR); | |
ef416fc2 | 3122 | } |
3123 | ||
3124 | /* | |
e60ec91f | 3125 | * Return the current status... |
ef416fc2 | 3126 | */ |
3127 | ||
e60ec91f | 3128 | return (status); |
ef416fc2 | 3129 | } |
3130 | ||
3131 | ||
38e73f87 MS |
3132 | /* |
3133 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
3134 | */ | |
3135 | ||
3136 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3137 | _httpWait(http_t *http, /* I - HTTP connection */ |
38e73f87 MS |
3138 | int msec, /* I - Milliseconds to wait */ |
3139 | int usessl) /* I - Use SSL context? */ | |
3140 | { | |
3141 | #ifdef HAVE_POLL | |
3142 | struct pollfd pfd; /* Polled file descriptor */ | |
3143 | #else | |
3144 | fd_set input_set; /* select() input set */ | |
3145 | struct timeval timeout; /* Timeout */ | |
3146 | #endif /* HAVE_POLL */ | |
3147 | int nfds; /* Result from select()/poll() */ | |
3148 | ||
3149 | ||
e07d4801 | 3150 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
3151 | |
3152 | if (http->fd < 0) | |
f8b3a85b MS |
3153 | { |
3154 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 3155 | return (0); |
f8b3a85b | 3156 | } |
38e73f87 MS |
3157 | |
3158 | /* | |
3159 | * Check the SSL/TLS buffers for data first... | |
3160 | */ | |
3161 | ||
3162 | #ifdef HAVE_SSL | |
2c85b752 | 3163 | if (http_tls_pending(http)) |
38e73f87 | 3164 | { |
2c85b752 MS |
3165 | DEBUG_puts("5_httpWait: Return 1 since there is pending TLS data."); |
3166 | return (1); | |
38e73f87 MS |
3167 | } |
3168 | #endif /* HAVE_SSL */ | |
3169 | ||
3170 | /* | |
3171 | * Then try doing a select() or poll() to poll the socket... | |
3172 | */ | |
3173 | ||
3174 | #ifdef HAVE_POLL | |
3175 | pfd.fd = http->fd; | |
3176 | pfd.events = POLLIN; | |
3177 | ||
5a9febac MS |
3178 | do |
3179 | { | |
3180 | nfds = poll(&pfd, 1, msec); | |
3181 | } | |
3182 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
3183 | |
3184 | #else | |
3185 | do | |
3186 | { | |
3187 | FD_ZERO(&input_set); | |
3188 | FD_SET(http->fd, &input_set); | |
3189 | ||
e07d4801 | 3190 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
3191 | |
3192 | if (msec >= 0) | |
3193 | { | |
3194 | timeout.tv_sec = msec / 1000; | |
3195 | timeout.tv_usec = (msec % 1000) * 1000; | |
3196 | ||
3197 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
3198 | } | |
3199 | else | |
3200 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
3201 | ||
e07d4801 | 3202 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
3203 | } |
3204 | # ifdef WIN32 | |
cc754834 MS |
3205 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
3206 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 3207 | # else |
e07d4801 | 3208 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
3209 | # endif /* WIN32 */ |
3210 | #endif /* HAVE_POLL */ | |
3211 | ||
f8b3a85b MS |
3212 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
3213 | errno)); | |
38e73f87 MS |
3214 | |
3215 | return (nfds > 0); | |
3216 | } | |
3217 | ||
3218 | ||
ef416fc2 | 3219 | /* |
3220 | * 'httpWait()' - Wait for data available on a connection. | |
3221 | * | |
f3c17241 | 3222 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 3223 | */ |
3224 | ||
3225 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3226 | httpWait(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3227 | int msec) /* I - Milliseconds to wait */ |
3228 | { | |
3229 | /* | |
3230 | * First see if there is data in the buffer... | |
3231 | */ | |
3232 | ||
22c9029b MS |
3233 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
3234 | ||
ef416fc2 | 3235 | if (http == NULL) |
3236 | return (0); | |
3237 | ||
3238 | if (http->used) | |
22c9029b MS |
3239 | { |
3240 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 3241 | return (1); |
22c9029b | 3242 | } |
ef416fc2 | 3243 | |
0fa6c7fa MS |
3244 | #ifdef HAVE_LIBZ |
3245 | if (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in > 0) | |
3246 | { | |
3247 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
3248 | return (1); | |
3249 | } | |
3250 | #endif /* HAVE_LIBZ */ | |
3251 | ||
8ca02f3c | 3252 | /* |
3253 | * Flush pending data, if any... | |
3254 | */ | |
3255 | ||
3256 | if (http->wused) | |
3257 | { | |
22c9029b MS |
3258 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3259 | ||
8ca02f3c | 3260 | if (httpFlushWrite(http) < 0) |
3261 | return (0); | |
3262 | } | |
3263 | ||
ef416fc2 | 3264 | /* |
3265 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3266 | */ | |
3267 | ||
38e73f87 | 3268 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3269 | } |
3270 | ||
3271 | ||
3272 | /* | |
3273 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3274 | * |
3275 | * This function is deprecated. Use the httpWrite2() function which can | |
3276 | * write more than 2GB of data. | |
3277 | * | |
3278 | * @deprecated@ | |
ef416fc2 | 3279 | */ |
ef55b745 | 3280 | |
ef416fc2 | 3281 | int /* O - Number of bytes written */ |
e6b1a6a9 | 3282 | httpWrite(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3283 | const char *buffer, /* I - Buffer for data */ |
3284 | int length) /* I - Number of bytes to write */ | |
3285 | { | |
a4d04587 | 3286 | return ((int)httpWrite2(http, buffer, length)); |
3287 | } | |
3288 | ||
3289 | ||
3290 | /* | |
3291 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3292 | * |
f3c17241 | 3293 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 3294 | */ |
ef55b745 | 3295 | |
a4d04587 | 3296 | ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 3297 | httpWrite2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 3298 | const char *buffer, /* I - Buffer for data */ |
3299 | size_t length) /* I - Number of bytes to write */ | |
3300 | { | |
3301 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3302 | |
3303 | ||
e07d4801 | 3304 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3305 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3306 | |
3307 | /* | |
3308 | * Range check input... | |
3309 | */ | |
3310 | ||
a469f8a5 MS |
3311 | if (!http || !buffer) |
3312 | { | |
3313 | DEBUG_puts("1httpWrite2: Returning -1 due to bad input."); | |
ef416fc2 | 3314 | return (-1); |
a469f8a5 | 3315 | } |
ef416fc2 | 3316 | |
3317 | /* | |
3318 | * Mark activity on the connection... | |
3319 | */ | |
3320 | ||
3321 | http->activity = time(NULL); | |
3322 | ||
3323 | /* | |
3324 | * Buffer small writes for better performance... | |
3325 | */ | |
3326 | ||
a469f8a5 MS |
3327 | #ifdef HAVE_LIBZ |
3328 | if (http->coding) | |
3329 | { | |
3330 | DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding)); | |
3331 | ||
3332 | if (length == 0) | |
3333 | { | |
3334 | http_content_coding_finish(http); | |
3335 | bytes = 0; | |
3336 | } | |
3337 | else | |
3338 | { | |
3339 | http->stream.next_in = (Bytef *)buffer; | |
3340 | http->stream.avail_in = length; | |
3341 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
3342 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
3343 | ||
3344 | while (deflate(&(http->stream), Z_NO_FLUSH) == Z_OK) | |
3345 | { | |
3346 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3347 | ||
3348 | if (http->stream.avail_out == 0) | |
3349 | { | |
3350 | if (httpFlushWrite(http) < 0) | |
3351 | { | |
3352 | DEBUG_puts("1httpWrite2: Unable to flush, returning -1."); | |
3353 | return (-1); | |
3354 | } | |
3355 | ||
3356 | http->stream.next_out = (Bytef *)http->wbuffer; | |
3357 | http->stream.avail_out = sizeof(http->wbuffer); | |
3358 | } | |
3359 | } | |
3360 | ||
3361 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3362 | bytes = length; | |
3363 | } | |
3364 | } | |
3365 | else | |
3366 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 3367 | if (length > 0) |
3368 | { | |
3369 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
3370 | { | |
e07d4801 MS |
3371 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3372 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3373 | |
3374 | httpFlushWrite(http); | |
3375 | } | |
3376 | ||
38e73f87 MS |
3377 | if ((length + http->wused) <= sizeof(http->wbuffer) && |
3378 | length < sizeof(http->wbuffer)) | |
ef416fc2 | 3379 | { |
3380 | /* | |
3381 | * Write to buffer... | |
3382 | */ | |
3383 | ||
e07d4801 | 3384 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3385 | CUPS_LLCAST length)); |
ef416fc2 | 3386 | |
3387 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3388 | http->wused += (int)length; |
3389 | bytes = (ssize_t)length; | |
ef416fc2 | 3390 | } |
3391 | else | |
3392 | { | |
3393 | /* | |
3394 | * Otherwise write the data directly... | |
3395 | */ | |
3396 | ||
e07d4801 | 3397 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3398 | CUPS_LLCAST length)); |
ef416fc2 | 3399 | |
a469f8a5 | 3400 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
b86bc4cf | 3401 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 3402 | else |
b86bc4cf | 3403 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 3404 | |
e07d4801 | 3405 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3406 | CUPS_LLCAST bytes)); |
ef416fc2 | 3407 | } |
3408 | ||
a469f8a5 | 3409 | if (http->data_encoding == HTTP_ENCODING_LENGTH) |
ef416fc2 | 3410 | http->data_remaining -= bytes; |
3411 | } | |
3412 | else | |
3413 | bytes = 0; | |
3414 | ||
3415 | /* | |
3416 | * Handle end-of-request processing... | |
3417 | */ | |
3418 | ||
a469f8a5 MS |
3419 | if ((http->data_encoding == HTTP_ENCODING_CHUNKED && length == 0) || |
3420 | (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0)) | |
ef416fc2 | 3421 | { |
3422 | /* | |
3423 | * Finished with the transfer; unless we are sending POST or PUT | |
3424 | * data, go idle... | |
3425 | */ | |
3426 | ||
db8b865d MS |
3427 | #ifdef HAVE_LIBZ |
3428 | if (http->coding) | |
3429 | http_content_coding_finish(http); | |
3430 | #endif /* HAVE_LIBZ */ | |
3431 | ||
ef416fc2 | 3432 | if (http->wused) |
a469f8a5 MS |
3433 | { |
3434 | if (httpFlushWrite(http) < 0) | |
3435 | return (-1); | |
3436 | } | |
ef416fc2 | 3437 | |
a469f8a5 | 3438 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 3439 | { |
3440 | /* | |
3441 | * Send a 0-length chunk at the end of the request... | |
3442 | */ | |
3443 | ||
3444 | http_write(http, "0\r\n\r\n", 5); | |
3445 | ||
3446 | /* | |
3447 | * Reset the data state... | |
3448 | */ | |
3449 | ||
a469f8a5 | 3450 | http->data_encoding = HTTP_ENCODING_FIELDS; |
ef416fc2 | 3451 | http->data_remaining = 0; |
3452 | } | |
a469f8a5 MS |
3453 | |
3454 | if (http->state == HTTP_STATE_POST_RECV) | |
3455 | http->state ++; | |
ad29aeab MS |
3456 | else if (http->state == HTTP_STATE_POST_SEND) |
3457 | http->state = HTTP_STATE_WAITING; | |
db8b865d | 3458 | else |
cb7f98ee | 3459 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 3460 | |
db8b865d | 3461 | DEBUG_printf(("2httpWrite2: Changed state to %s.", |
48bd1142 | 3462 | httpStateString(http->state))); |
ef416fc2 | 3463 | } |
3464 | ||
a469f8a5 MS |
3465 | DEBUG_printf(("1httpWrite2: Returning " CUPS_LLFMT ".", CUPS_LLCAST bytes)); |
3466 | ||
ef416fc2 | 3467 | return (bytes); |
3468 | } | |
3469 | ||
3470 | ||
a469f8a5 MS |
3471 | /* |
3472 | * 'httpWriteResponse()' - Write a HTTP response to a client connection. | |
3473 | * | |
9c0e8e5d | 3474 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
3475 | */ |
3476 | ||
3477 | int /* O - 0 on success, -1 on error */ | |
3478 | httpWriteResponse(http_t *http, /* I - HTTP connection */ | |
3479 | http_status_t status) /* I - Status code */ | |
3480 | { | |
3481 | http_encoding_t old_encoding; /* Old data_encoding value */ | |
3482 | off_t old_remaining; /* Old data_remaining value */ | |
3483 | ||
3484 | ||
3485 | /* | |
3486 | * Range check input... | |
3487 | */ | |
3488 | ||
3489 | DEBUG_printf(("httpWriteResponse(http=%p, status=%d)", http, status)); | |
3490 | ||
3491 | if (!http || status < HTTP_STATUS_CONTINUE) | |
3492 | { | |
3493 | DEBUG_puts("1httpWriteResponse: Bad input."); | |
3494 | return (-1); | |
3495 | } | |
3496 | ||
3497 | /* | |
3498 | * Set the various standard fields if they aren't already... | |
3499 | */ | |
3500 | ||
3501 | if (!http->fields[HTTP_FIELD_DATE][0]) | |
3502 | httpSetField(http, HTTP_FIELD_DATE, httpGetDateString(time(NULL))); | |
3503 | ||
cb7f98ee | 3504 | if (status >= HTTP_STATUS_BAD_REQUEST && http->keep_alive) |
a469f8a5 | 3505 | { |
5ec1fd3d | 3506 | http->keep_alive = HTTP_KEEPALIVE_OFF; |
a469f8a5 MS |
3507 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, ""); |
3508 | } | |
3509 | ||
3510 | if (http->version == HTTP_VERSION_1_1) | |
3511 | { | |
3512 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3513 | { | |
3514 | if (http->keep_alive) | |
3515 | httpSetField(http, HTTP_FIELD_CONNECTION, "Keep-Alive"); | |
3516 | else | |
3517 | httpSetField(http, HTTP_FIELD_CONNECTION, "close"); | |
3518 | } | |
3519 | ||
3520 | if (http->keep_alive && !http->fields[HTTP_FIELD_KEEP_ALIVE][0]) | |
3521 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, "timeout=10"); | |
3522 | } | |
3523 | ||
3524 | #ifdef HAVE_SSL | |
e200616a MS |
3525 | if (status == HTTP_STATUS_UPGRADE_REQUIRED || |
3526 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3527 | { |
3528 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3529 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3530 | ||
3531 | if (!http->fields[HTTP_FIELD_UPGRADE][0]) | |
3532 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); | |
e200616a MS |
3533 | |
3534 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) | |
3535 | httpSetField(http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 MS |
3536 | } |
3537 | #endif /* HAVE_SSL */ | |
3538 | ||
3539 | if (!http->server) | |
c1420c87 MS |
3540 | httpSetField(http, HTTP_FIELD_SERVER, |
3541 | http->default_server ? http->default_server : CUPS_MINIMAL); | |
a469f8a5 | 3542 | |
a469f8a5 MS |
3543 | /* |
3544 | * Set the Accept-Encoding field if it isn't already... | |
3545 | */ | |
3546 | ||
3547 | if (!http->accept_encoding) | |
c1420c87 MS |
3548 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, |
3549 | http->default_accept_encoding ? http->default_accept_encoding : | |
3550 | #ifdef HAVE_LIBZ | |
3551 | "gzip, deflate, identity"); | |
3552 | #else | |
3553 | "identity"); | |
a469f8a5 MS |
3554 | #endif /* HAVE_LIBZ */ |
3555 | ||
3556 | /* | |
3557 | * Send the response header... | |
3558 | */ | |
3559 | ||
3560 | old_encoding = http->data_encoding; | |
3561 | old_remaining = http->data_remaining; | |
3562 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
3563 | ||
3564 | if (httpPrintf(http, "HTTP/%d.%d %d %s\r\n", http->version / 100, | |
3565 | http->version % 100, (int)status, httpStatus(status)) < 0) | |
3566 | { | |
3567 | http->status = HTTP_STATUS_ERROR; | |
3568 | return (-1); | |
3569 | } | |
3570 | ||
3571 | if (status != HTTP_STATUS_CONTINUE) | |
3572 | { | |
3573 | /* | |
3574 | * 100 Continue doesn't have the rest of the response headers... | |
3575 | */ | |
3576 | ||
3577 | int i; /* Looping var */ | |
3578 | const char *value; /* Field value */ | |
3579 | ||
3580 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3581 | { | |
3582 | if ((value = httpGetField(http, i)) != NULL && *value) | |
3583 | { | |
3584 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) | |
3585 | { | |
3586 | http->status = HTTP_STATUS_ERROR; | |
3587 | return (-1); | |
3588 | } | |
3589 | } | |
3590 | } | |
3591 | ||
3592 | if (http->cookie) | |
3593 | { | |
e200616a MS |
3594 | if (httpPrintf(http, "Set-Cookie: %s path=/ httponly%s\r\n", |
3595 | http->cookie, http->tls ? " secure" : "") < 1) | |
a469f8a5 | 3596 | { |
cb7f98ee | 3597 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3598 | return (-1); |
3599 | } | |
3600 | } | |
3601 | } | |
3602 | ||
3603 | if (httpWrite2(http, "\r\n", 2) < 2) | |
3604 | { | |
cb7f98ee | 3605 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3606 | return (-1); |
3607 | } | |
3608 | ||
3609 | if (httpFlushWrite(http) < 0) | |
3610 | { | |
cb7f98ee | 3611 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3612 | return (-1); |
3613 | } | |
3614 | ||
e200616a MS |
3615 | if (status == HTTP_STATUS_CONTINUE || |
3616 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3617 | { |
3618 | /* | |
3619 | * Restore the old data_encoding and data_length values... | |
3620 | */ | |
3621 | ||
3622 | http->data_encoding = old_encoding; | |
3623 | http->data_remaining = old_remaining; | |
3624 | ||
3625 | if (old_remaining <= INT_MAX) | |
3626 | http->_data_remaining = (int)old_remaining; | |
3627 | else | |
3628 | http->_data_remaining = INT_MAX; | |
3629 | } | |
3630 | else if (http->state == HTTP_STATE_OPTIONS || | |
3631 | http->state == HTTP_STATE_HEAD || | |
3632 | http->state == HTTP_STATE_PUT || | |
3633 | http->state == HTTP_STATE_TRACE || | |
cb7f98ee MS |
3634 | http->state == HTTP_STATE_CONNECT || |
3635 | http->state == HTTP_STATE_STATUS) | |
a469f8a5 MS |
3636 | { |
3637 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
48bd1142 | 3638 | "was %s.", httpStateString(http->state))); |
a469f8a5 MS |
3639 | http->state = HTTP_STATE_WAITING; |
3640 | } | |
3641 | else | |
3642 | { | |
3643 | /* | |
3644 | * Force data_encoding and data_length to be set according to the response | |
3645 | * headers... | |
3646 | */ | |
3647 | ||
3648 | http_set_length(http); | |
3649 | ||
db8b865d | 3650 | #ifdef HAVE_LIBZ |
a469f8a5 MS |
3651 | /* |
3652 | * Then start any content encoding... | |
3653 | */ | |
3654 | ||
3655 | DEBUG_puts("1httpWriteResponse: Calling http_content_coding_start."); | |
3656 | http_content_coding_start(http, | |
3657 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
db8b865d | 3658 | #endif /* HAVE_LIBZ */ |
a469f8a5 MS |
3659 | } |
3660 | ||
3661 | return (0); | |
3662 | } | |
3663 | ||
3664 | ||
2c85b752 | 3665 | #ifdef HAVE_LIBZ |
411affcf | 3666 | /* |
2c85b752 | 3667 | * 'http_content_coding_finish()' - Finish doing any content encoding. |
411affcf | 3668 | */ |
3669 | ||
2c85b752 MS |
3670 | static void |
3671 | http_content_coding_finish( | |
3672 | http_t *http) /* I - HTTP connection */ | |
a469f8a5 MS |
3673 | { |
3674 | int zerr; /* Compression status */ | |
3675 | ||
3676 | ||
3677 | switch (http->coding) | |
3678 | { | |
3679 | case _HTTP_CODING_DEFLATE : | |
3680 | case _HTTP_CODING_GZIP : | |
3681 | do | |
3682 | { | |
3683 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
3684 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
3685 | ||
3686 | zerr = deflate(&(http->stream), Z_FINISH); | |
3687 | ||
3688 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3689 | if (http->wused == sizeof(http->wbuffer)) | |
3690 | httpFlushWrite(http); | |
3691 | } | |
3692 | while (zerr == Z_OK); | |
3693 | ||
3694 | deflateEnd(&(http->stream)); | |
3695 | ||
3696 | if (http->wused) | |
3697 | httpFlushWrite(http); | |
3698 | break; | |
3699 | ||
3700 | case _HTTP_CODING_INFLATE : | |
3701 | case _HTTP_CODING_GUNZIP : | |
3702 | inflateEnd(&(http->stream)); | |
0fa6c7fa MS |
3703 | free(http->dbuffer); |
3704 | http->dbuffer = NULL; | |
a469f8a5 MS |
3705 | break; |
3706 | ||
3707 | default : | |
3708 | break; | |
3709 | } | |
3710 | ||
3711 | http->coding = _HTTP_CODING_IDENTITY; | |
3712 | } | |
3713 | ||
3714 | ||
3715 | /* | |
3716 | * 'http_content_coding_start()' - Start doing content encoding. | |
3717 | */ | |
3718 | ||
3719 | static void | |
3720 | http_content_coding_start( | |
3721 | http_t *http, /* I - HTTP connection */ | |
3722 | const char *value) /* I - Value of Content-Encoding */ | |
3723 | { | |
3724 | int zerr; /* Error/status */ | |
3725 | _http_coding_t coding; /* Content coding value */ | |
3726 | ||
3727 | ||
3728 | DEBUG_printf(("http_content_coding_start(http=%p, value=\"%s\")", http, | |
3729 | value)); | |
3730 | ||
3731 | if (http->coding != _HTTP_CODING_IDENTITY) | |
3732 | { | |
3733 | DEBUG_printf(("1http_content_coding_start: http->coding already %d.", | |
3734 | http->coding)); | |
3735 | return; | |
3736 | } | |
3737 | else if (!strcmp(value, "x-gzip") || !strcmp(value, "gzip")) | |
3738 | { | |
cb7f98ee MS |
3739 | if (http->state == HTTP_STATE_GET_SEND || |
3740 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3741 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_GZIP : |
3742 | _HTTP_CODING_GUNZIP; | |
cb7f98ee MS |
3743 | else if (http->state == HTTP_STATE_POST_RECV || |
3744 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3745 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_GZIP : |
3746 | _HTTP_CODING_GUNZIP; | |
3747 | else | |
3748 | { | |
3749 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3750 | return; | |
3751 | } | |
3752 | } | |
3753 | else if (!strcmp(value, "x-deflate") || !strcmp(value, "deflate")) | |
3754 | { | |
cb7f98ee MS |
3755 | if (http->state == HTTP_STATE_GET_SEND || |
3756 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3757 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_DEFLATE : |
3758 | _HTTP_CODING_INFLATE; | |
cb7f98ee MS |
3759 | else if (http->state == HTTP_STATE_POST_RECV || |
3760 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3761 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_DEFLATE : |
3762 | _HTTP_CODING_INFLATE; | |
3763 | else | |
3764 | { | |
3765 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3766 | return; | |
3767 | } | |
3768 | } | |
3769 | else | |
3770 | { | |
3771 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3772 | return; | |
3773 | } | |
3774 | ||
3775 | memset(&(http->stream), 0, sizeof(http->stream)); | |
3776 | ||
3777 | switch (coding) | |
3778 | { | |
3779 | case _HTTP_CODING_DEFLATE : | |
3780 | case _HTTP_CODING_GZIP : | |
3781 | if (http->wused) | |
3782 | httpFlushWrite(http); | |
3783 | ||
db8b865d MS |
3784 | /* |
3785 | * Window size for compression is 11 bits - optimal based on PWG Raster | |
3786 | * sample files on pwg.org. -11 is raw deflate, 27 is gzip, per ZLIB | |
3787 | * documentation. | |
3788 | */ | |
3789 | ||
a469f8a5 MS |
3790 | if ((zerr = deflateInit2(&(http->stream), Z_DEFAULT_COMPRESSION, |
3791 | Z_DEFLATED, | |
db8b865d | 3792 | coding == _HTTP_CODING_DEFLATE ? -11 : 27, 7, |
a469f8a5 MS |
3793 | Z_DEFAULT_STRATEGY)) < Z_OK) |
3794 | { | |
cb7f98ee | 3795 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3796 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3797 | return; | |
3798 | } | |
3799 | break; | |
3800 | ||
3801 | case _HTTP_CODING_INFLATE : | |
3802 | case _HTTP_CODING_GUNZIP : | |
0fa6c7fa | 3803 | if ((http->dbuffer = malloc(HTTP_MAX_BUFFER)) == NULL) |
a469f8a5 | 3804 | { |
cb7f98ee | 3805 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa | 3806 | http->error = errno; |
a469f8a5 MS |
3807 | return; |
3808 | } | |
0fa6c7fa | 3809 | |
db8b865d MS |
3810 | /* |
3811 | * Window size for decompression is up to 15 bits (maximum supported). | |
3812 | * -15 is raw inflate, 31 is gunzip, per ZLIB documentation. | |
3813 | */ | |
3814 | ||
0fa6c7fa | 3815 | if ((zerr = inflateInit2(&(http->stream), |
db8b865d | 3816 | coding == _HTTP_CODING_INFLATE ? -15 : 31)) |
0fa6c7fa MS |
3817 | < Z_OK) |
3818 | { | |
3819 | free(http->dbuffer); | |
3820 | http->dbuffer = NULL; | |
cb7f98ee | 3821 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa MS |
3822 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3823 | return; | |
3824 | } | |
3825 | ||
3826 | http->stream.avail_in = 0; | |
3827 | http->stream.next_in = http->dbuffer; | |
a469f8a5 MS |
3828 | break; |
3829 | ||
3830 | default : | |
3831 | break; | |
3832 | } | |
3833 | ||
3834 | http->coding = coding; | |
3835 | ||
3836 | DEBUG_printf(("1http_content_coding_start: http->coding now %d.", | |
3837 | http->coding)); | |
3838 | } | |
3839 | #endif /* HAVE_LIBZ */ | |
3840 | ||
3841 | ||
db8b865d MS |
3842 | /* |
3843 | * 'http_create()' - Create an unconnected HTTP connection. | |
3844 | */ | |
3845 | ||
3846 | static http_t * /* O - HTTP connection */ | |
3847 | http_create( | |
3848 | const char *host, /* I - Hostname */ | |
3849 | int port, /* I - Port number */ | |
3850 | http_addrlist_t *addrlist, /* I - Address list or NULL */ | |
3851 | int family, /* I - Address family or AF_UNSPEC */ | |
3852 | http_encryption_t encryption, /* I - Encryption to use */ | |
3853 | int blocking, /* I - 1 for blocking mode */ | |
3854 | _http_mode_t mode) /* I - _HTTP_MODE_CLIENT or _SERVER */ | |
3855 | { | |
3856 | http_t *http; /* New HTTP connection */ | |
3857 | char service[255]; /* Service name */ | |
3858 | http_addrlist_t *myaddrlist = NULL; /* My address list */ | |
3859 | ||
3860 | ||
3861 | DEBUG_printf(("4http_create(host=\"%s\", port=%d, addrlist=%p, family=%d, " | |
3862 | "encryption=%d, blocking=%d, mode=%d)", host, port, addrlist, | |
3863 | family, encryption, blocking, mode)); | |
3864 | ||
3865 | if (!host && mode == _HTTP_MODE_CLIENT) | |
3866 | return (NULL); | |
3867 | ||
3868 | httpInitialize(); | |
3869 | ||
3870 | /* | |
3871 | * Lookup the host... | |
3872 | */ | |
3873 | ||
3874 | if (addrlist) | |
3875 | { | |
3876 | myaddrlist = httpAddrCopyList(addrlist); | |
3877 | } | |
3878 | else | |
3879 | { | |
3880 | snprintf(service, sizeof(service), "%d", port); | |
3881 | ||
3882 | myaddrlist = httpAddrGetList(host, family, service); | |
3883 | } | |
3884 | ||
3885 | if (!myaddrlist) | |
3886 | return (NULL); | |
3887 | ||
3888 | /* | |
3889 | * Allocate memory for the structure... | |
3890 | */ | |
3891 | ||
3892 | if ((http = calloc(sizeof(http_t), 1)) == NULL) | |
3893 | { | |
cb7f98ee | 3894 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); |
db8b865d MS |
3895 | httpAddrFreeList(addrlist); |
3896 | return (NULL); | |
3897 | } | |
3898 | ||
3899 | /* | |
3900 | * Initialize the HTTP data... | |
3901 | */ | |
3902 | ||
3903 | http->mode = mode; | |
3904 | http->activity = time(NULL); | |
3905 | http->addrlist = myaddrlist; | |
3906 | http->blocking = blocking; | |
3907 | http->fd = -1; | |
3908 | #ifdef HAVE_GSSAPI | |
3909 | http->gssctx = GSS_C_NO_CONTEXT; | |
3910 | http->gssname = GSS_C_NO_NAME; | |
3911 | #endif /* HAVE_GSSAPI */ | |
cb7f98ee | 3912 | http->status = HTTP_STATUS_CONTINUE; |
db8b865d MS |
3913 | http->version = HTTP_VERSION_1_1; |
3914 | ||
3915 | if (host) | |
3916 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
3917 | ||
3918 | if (port == 443) /* Always use encryption for https */ | |
3919 | http->encryption = HTTP_ENCRYPTION_ALWAYS; | |
3920 | else | |
3921 | http->encryption = encryption; | |
3922 | ||
3923 | http_set_wait(http); | |
3924 | ||
3925 | /* | |
3926 | * Return the new structure... | |
3927 | */ | |
3928 | ||
3929 | return (http); | |
3930 | } | |
3931 | ||
db8b865d | 3932 | |
ae71f5de MS |
3933 | #ifdef DEBUG |
3934 | /* | |
3935 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
3936 | */ | |
3937 | ||
3938 | static void | |
3939 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
3940 | const char *buffer, /* I - Buffer to dump */ | |
3941 | int bytes) /* I - Bytes to dump */ | |
3942 | { | |
3943 | int i, j, /* Looping vars */ | |
3944 | ch; /* Current character */ | |
3945 | char line[255], /* Line buffer */ | |
3946 | *start, /* Start of line after prefix */ | |
3947 | *ptr; /* Pointer into line */ | |
3948 | ||
3949 | ||
f11a948a | 3950 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
3951 | return; |
3952 | ||
83e08001 | 3953 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 3954 | |
f11a948a | 3955 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
3956 | start = line + strlen(line); |
3957 | ||
3958 | for (i = 0; i < bytes; i += 16) | |
3959 | { | |
3960 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
3961 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
3962 | ||
3963 | while (j < 16) | |
3964 | { | |
5a9febac | 3965 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3966 | ptr += 2; |
3967 | j ++; | |
3968 | } | |
3969 | ||
5a9febac | 3970 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3971 | ptr += 2; |
3972 | ||
3973 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
3974 | { | |
3975 | ch = buffer[i + j] & 255; | |
3976 | ||
3977 | if (ch < ' ' || ch >= 127) | |
3978 | ch = '.'; | |
3979 | ||
3980 | *ptr++ = ch; | |
3981 | } | |
3982 | ||
3983 | *ptr = '\0'; | |
3984 | DEBUG_puts(line); | |
3985 | } | |
3986 | } | |
3987 | #endif /* DEBUG */ | |
3988 | ||
3989 | ||
0fa6c7fa MS |
3990 | /* |
3991 | * 'http_read()' - Read a buffer from a HTTP connection. | |
3992 | * | |
3993 | * This function does the low-level read from the socket, retrying and timing | |
3994 | * out as needed. | |
3995 | */ | |
3996 | ||
3997 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 3998 | http_read(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
3999 | char *buffer, /* I - Buffer */ |
4000 | size_t length) /* I - Maximum bytes to read */ | |
4001 | { | |
4002 | ssize_t bytes; /* Bytes read */ | |
4003 | ||
4004 | ||
4005 | DEBUG_printf(("http_read(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, | |
4006 | buffer, CUPS_LLCAST length)); | |
4007 | ||
4008 | if (!http->blocking) | |
4009 | { | |
4010 | while (!httpWait(http, http->wait_value)) | |
4011 | { | |
4012 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4013 | continue; | |
4014 | ||
4015 | DEBUG_puts("2http_read: Timeout."); | |
4016 | return (0); | |
4017 | } | |
4018 | } | |
4019 | ||
4020 | DEBUG_printf(("2http_read: Reading %d bytes into buffer.", (int)length)); | |
4021 | ||
4022 | do | |
4023 | { | |
4024 | #ifdef HAVE_SSL | |
4025 | if (http->tls) | |
2c85b752 | 4026 | bytes = http_tls_read(http, buffer, length); |
0fa6c7fa MS |
4027 | else |
4028 | #endif /* HAVE_SSL */ | |
4029 | bytes = recv(http->fd, buffer, length, 0); | |
4030 | ||
4031 | if (bytes < 0) | |
4032 | { | |
4033 | #ifdef WIN32 | |
4034 | if (WSAGetLastError() != WSAEINTR) | |
4035 | { | |
4036 | http->error = WSAGetLastError(); | |
4037 | return (-1); | |
4038 | } | |
4039 | else if (WSAGetLastError() == WSAEWOULDBLOCK) | |
4040 | { | |
4041 | if (!http->timeout_cb || | |
4042 | !(*http->timeout_cb)(http, http->timeout_data)) | |
4043 | { | |
4044 | http->error = WSAEWOULDBLOCK; | |
4045 | return (-1); | |
4046 | } | |
4047 | } | |
4048 | #else | |
4049 | DEBUG_printf(("2http_read: %s", strerror(errno))); | |
4050 | ||
4051 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
4052 | { | |
4053 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
4054 | { | |
4055 | http->error = errno; | |
4056 | return (-1); | |
4057 | } | |
4058 | else if (!http->timeout_cb && errno != EAGAIN) | |
4059 | { | |
4060 | http->error = errno; | |
4061 | return (-1); | |
4062 | } | |
4063 | } | |
4064 | else if (errno != EINTR) | |
4065 | { | |
4066 | http->error = errno; | |
4067 | return (-1); | |
4068 | } | |
4069 | #endif /* WIN32 */ | |
4070 | } | |
4071 | } | |
4072 | while (bytes < 0); | |
4073 | ||
4074 | DEBUG_printf(("2http_read: Read " CUPS_LLFMT " bytes into buffer.", | |
4075 | CUPS_LLCAST bytes)); | |
4076 | #ifdef DEBUG | |
4077 | if (bytes > 0) | |
6961465f | 4078 | http_debug_hex("http_read", buffer, (int)bytes); |
0fa6c7fa MS |
4079 | #endif /* DEBUG */ |
4080 | ||
4081 | if (bytes < 0) | |
4082 | { | |
4083 | #ifdef WIN32 | |
4084 | if (WSAGetLastError() == WSAEINTR) | |
4085 | bytes = 0; | |
4086 | else | |
4087 | http->error = WSAGetLastError(); | |
4088 | #else | |
4089 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) | |
4090 | bytes = 0; | |
4091 | else | |
4092 | http->error = errno; | |
4093 | #endif /* WIN32 */ | |
4094 | } | |
4095 | else if (bytes == 0) | |
4096 | { | |
4097 | http->error = EPIPE; | |
4098 | return (0); | |
4099 | } | |
4100 | ||
4101 | return (bytes); | |
4102 | } | |
4103 | ||
4104 | ||
4105 | /* | |
4106 | * 'http_read_buffered()' - Do a buffered read from a HTTP connection. | |
4107 | * | |
4108 | * This function reads data from the HTTP buffer or from the socket, as needed. | |
4109 | */ | |
4110 | ||
4111 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4112 | http_read_buffered(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4113 | char *buffer, /* I - Buffer */ |
4114 | size_t length) /* I - Maximum bytes to read */ | |
4115 | { | |
4116 | ssize_t bytes; /* Bytes read */ | |
4117 | ||
4118 | ||
4119 | DEBUG_printf(("http_read_buffered(http=%p, buffer=%p, length=" CUPS_LLFMT | |
4120 | ") used=%d", | |
4121 | http, buffer, CUPS_LLCAST length, http->used)); | |
4122 | ||
4123 | if (http->used > 0) | |
4124 | { | |
4125 | if (length > (size_t)http->used) | |
4126 | bytes = (size_t)http->used; | |
4127 | else | |
4128 | bytes = length; | |
4129 | ||
4130 | DEBUG_printf(("2http_read: Grabbing %d bytes from input buffer.", | |
4131 | (int)bytes)); | |
4132 | ||
4133 | memcpy(buffer, http->buffer, bytes); | |
4134 | http->used -= (int)bytes; | |
4135 | ||
4136 | if (http->used > 0) | |
4137 | memmove(http->buffer, http->buffer + bytes, http->used); | |
4138 | } | |
4139 | else | |
4140 | bytes = http_read(http, buffer, length); | |
4141 | ||
4142 | return (bytes); | |
4143 | } | |
4144 | ||
4145 | ||
4146 | /* | |
4147 | * 'http_read_chunk()' - Read a chunk from a HTTP connection. | |
4148 | * | |
4149 | * This function reads and validates the chunk length, then does a buffered read | |
4150 | * returning the number of bytes placed in the buffer. | |
4151 | */ | |
4152 | ||
4153 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4154 | http_read_chunk(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4155 | char *buffer, /* I - Buffer */ |
4156 | size_t length) /* I - Maximum bytes to read */ | |
4157 | { | |
4158 | DEBUG_printf(("http_read_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
4159 | http, buffer, CUPS_LLCAST length)); | |
4160 | ||
4161 | if (http->data_remaining <= 0) | |
4162 | { | |
4163 | char len[32]; /* Length string */ | |
4164 | ||
4165 | if (!httpGets(len, sizeof(len), http)) | |
4166 | { | |
4167 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4168 | return (0); | |
4169 | } | |
4170 | ||
4171 | if (!len[0]) | |
4172 | { | |
4173 | DEBUG_puts("1http_read_chunk: Blank chunk length, trying again..."); | |
4174 | if (!httpGets(len, sizeof(len), http)) | |
4175 | { | |
4176 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4177 | return (0); | |
4178 | } | |
4179 | } | |
4180 | ||
4181 | http->data_remaining = strtoll(len, NULL, 16); | |
4182 | ||
4183 | if (http->data_remaining < 0) | |
4184 | { | |
4185 | DEBUG_printf(("1http_read_chunk: Negative chunk length \"%s\" (" | |
4186 | CUPS_LLFMT ")", len, CUPS_LLCAST http->data_remaining)); | |
4187 | return (0); | |
4188 | } | |
4189 | ||
4190 | DEBUG_printf(("2http_read_chunk: Got chunk length \"%s\" (" CUPS_LLFMT ")", | |
4191 | len, CUPS_LLCAST http->data_remaining)); | |
4192 | ||
4193 | if (http->data_remaining == 0) | |
4194 | { | |
4195 | /* | |
4196 | * 0-length chunk, grab trailing blank line... | |
4197 | */ | |
4198 | ||
4199 | httpGets(len, sizeof(len), http); | |
4200 | } | |
4201 | } | |
4202 | ||
4203 | DEBUG_printf(("2http_read_chunk: data_remaining=" CUPS_LLFMT, | |
4204 | CUPS_LLCAST http->data_remaining)); | |
4205 | ||
4206 | if (http->data_remaining <= 0) | |
4207 | return (0); | |
4208 | else if (length > (size_t)http->data_remaining) | |
4209 | length = (size_t)http->data_remaining; | |
4210 | ||
4211 | return (http_read_buffered(http, buffer, length)); | |
4212 | } | |
4213 | ||
4214 | ||
ef416fc2 | 4215 | /* |
4216 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
4217 | */ | |
4218 | ||
a469f8a5 | 4219 | static int /* O - 0 on success, non-zero on error */ |
e6b1a6a9 | 4220 | http_send(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
4221 | http_state_t request, /* I - Request code */ |
4222 | const char *uri) /* I - URI */ | |
ef416fc2 | 4223 | { |
a469f8a5 MS |
4224 | int i; /* Looping var */ |
4225 | char buf[1024]; /* Encoded URI buffer */ | |
4226 | const char *value; /* Field value */ | |
4227 | static const char * const codes[] = /* Request code strings */ | |
4228 | { | |
ef416fc2 | 4229 | NULL, |
4230 | "OPTIONS", | |
4231 | "GET", | |
4232 | NULL, | |
4233 | "HEAD", | |
4234 | "POST", | |
4235 | NULL, | |
4236 | NULL, | |
4237 | "PUT", | |
4238 | NULL, | |
4239 | "DELETE", | |
4240 | "TRACE", | |
a469f8a5 MS |
4241 | "CLOSE", |
4242 | NULL, | |
4243 | NULL | |
ef416fc2 | 4244 | }; |
ef416fc2 | 4245 | |
4246 | ||
cb7f98ee | 4247 | DEBUG_printf(("4http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 4248 | http, codes[request], uri)); |
4249 | ||
4250 | if (http == NULL || uri == NULL) | |
4251 | return (-1); | |
4252 | ||
4253 | /* | |
4254 | * Set the User-Agent field if it isn't already... | |
4255 | */ | |
4256 | ||
4257 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
db8b865d MS |
4258 | { |
4259 | if (http->default_user_agent) | |
4260 | httpSetField(http, HTTP_FIELD_USER_AGENT, http->default_user_agent); | |
4261 | else | |
4262 | httpSetField(http, HTTP_FIELD_USER_AGENT, cupsUserAgent()); | |
4263 | } | |
ef416fc2 | 4264 | |
a469f8a5 MS |
4265 | /* |
4266 | * Set the Accept-Encoding field if it isn't already... | |
4267 | */ | |
4268 | ||
c1420c87 MS |
4269 | if (!http->accept_encoding && http->default_accept_encoding) |
4270 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, | |
4271 | http->default_accept_encoding); | |
a469f8a5 | 4272 | |
ef416fc2 | 4273 | /* |
4274 | * Encode the URI as needed... | |
4275 | */ | |
4276 | ||
839a51c8 | 4277 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 4278 | |
4279 | /* | |
4280 | * See if we had an error the last time around; if so, reconnect... | |
4281 | */ | |
4282 | ||
cb7f98ee MS |
4283 | if (http->fd < 0 || http->status == HTTP_STATUS_ERROR || |
4284 | http->status >= HTTP_STATUS_BAD_REQUEST) | |
4285 | { | |
4286 | DEBUG_printf(("5http_send: Reconnecting, fd=%d, status=%d, tls_upgrade=%d", | |
4287 | http->fd, http->status, http->tls_upgrade)); | |
4288 | ||
4289 | if (httpReconnect2(http, 30000, NULL)) | |
fa73b229 | 4290 | return (-1); |
cb7f98ee | 4291 | } |
ef416fc2 | 4292 | |
d09495fa | 4293 | /* |
4294 | * Flush any written data that is pending... | |
4295 | */ | |
4296 | ||
4297 | if (http->wused) | |
536bc2c6 MS |
4298 | { |
4299 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 4300 | if (httpReconnect2(http, 30000, NULL)) |
536bc2c6 MS |
4301 | return (-1); |
4302 | } | |
d09495fa | 4303 | |
ef416fc2 | 4304 | /* |
4305 | * Send the request header... | |
4306 | */ | |
4307 | ||
d09495fa | 4308 | http->state = request; |
a469f8a5 | 4309 | http->data_encoding = HTTP_ENCODING_FIELDS; |
d09495fa | 4310 | |
cb7f98ee | 4311 | if (request == HTTP_STATE_POST || request == HTTP_STATE_PUT) |
ef416fc2 | 4312 | http->state ++; |
4313 | ||
cb7f98ee | 4314 | http->status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 4315 | |
4316 | #ifdef HAVE_SSL | |
cb7f98ee | 4317 | if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) |
ef416fc2 | 4318 | { |
4319 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
a469f8a5 | 4320 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4321 | } |
4322 | #endif /* HAVE_SSL */ | |
4323 | ||
4324 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
4325 | { | |
cb7f98ee | 4326 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4327 | return (-1); |
4328 | } | |
4329 | ||
4330 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
a469f8a5 | 4331 | if ((value = httpGetField(http, i)) != NULL && *value) |
ef416fc2 | 4332 | { |
cb7f98ee | 4333 | DEBUG_printf(("5http_send: %s: %s", http_fields[i], value)); |
ef416fc2 | 4334 | |
37e7e6e0 MS |
4335 | if (i == HTTP_FIELD_HOST) |
4336 | { | |
a469f8a5 MS |
4337 | if (httpPrintf(http, "Host: %s:%d\r\n", value, |
4338 | httpAddrPort(http->hostaddr)) < 1) | |
37e7e6e0 | 4339 | { |
cb7f98ee | 4340 | http->status = HTTP_STATUS_ERROR; |
37e7e6e0 MS |
4341 | return (-1); |
4342 | } | |
4343 | } | |
a469f8a5 | 4344 | else if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) |
ef416fc2 | 4345 | { |
cb7f98ee | 4346 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4347 | return (-1); |
4348 | } | |
4349 | } | |
4350 | ||
4351 | if (http->cookie) | |
4352 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
4353 | { | |
cb7f98ee | 4354 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4355 | return (-1); |
4356 | } | |
4357 | ||
cb7f98ee MS |
4358 | DEBUG_printf(("5http_send: expect=%d, mode=%d, state=%d", http->expect, |
4359 | http->mode, http->state)); | |
4360 | ||
4361 | if (http->expect == HTTP_STATUS_CONTINUE && http->mode == _HTTP_MODE_CLIENT && | |
4362 | (http->state == HTTP_STATE_POST_RECV || | |
4363 | http->state == HTTP_STATE_PUT_RECV)) | |
b423cd4c | 4364 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) |
4365 | { | |
cb7f98ee | 4366 | http->status = HTTP_STATUS_ERROR; |
b423cd4c | 4367 | return (-1); |
4368 | } | |
4369 | ||
ef416fc2 | 4370 | if (httpPrintf(http, "\r\n") < 1) |
4371 | { | |
cb7f98ee | 4372 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4373 | return (-1); |
4374 | } | |
4375 | ||
536bc2c6 MS |
4376 | if (httpFlushWrite(http) < 0) |
4377 | return (-1); | |
4378 | ||
a469f8a5 | 4379 | http_set_length(http); |
ef416fc2 | 4380 | httpClearFields(http); |
4381 | ||
f7deaa1a | 4382 | /* |
b94498cf | 4383 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 4384 | */ |
4385 | ||
ef55b745 MS |
4386 | if (http->field_authorization && http->authstring && |
4387 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 4388 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 4389 | { |
4390 | http->_authstring[0] = '\0'; | |
4391 | ||
4392 | if (http->authstring != http->_authstring) | |
4393 | free(http->authstring); | |
ef55b745 | 4394 | |
f7deaa1a | 4395 | http->authstring = http->_authstring; |
4396 | } | |
4397 | ||
ef416fc2 | 4398 | return (0); |
4399 | } | |
4400 | ||
4401 | ||
a469f8a5 MS |
4402 | /* |
4403 | * 'http_set_length()' - Set the data_encoding and data_remaining values. | |
4404 | */ | |
4405 | ||
4406 | static off_t /* O - Remainder or -1 on error */ | |
4407 | http_set_length(http_t *http) /* I - Connection */ | |
4408 | { | |
4409 | off_t remaining; /* Remainder */ | |
4410 | ||
4411 | ||
4412 | DEBUG_printf(("http_set_length(http=%p) mode=%d state=%s", http, http->mode, | |
48bd1142 | 4413 | httpStateString(http->state))); |
a469f8a5 MS |
4414 | |
4415 | if ((remaining = httpGetLength2(http)) >= 0) | |
4416 | { | |
4417 | if (http->mode == _HTTP_MODE_SERVER && | |
4418 | http->state != HTTP_STATE_GET_SEND && | |
c41769ff | 4419 | http->state != HTTP_STATE_PUT && |
a469f8a5 MS |
4420 | http->state != HTTP_STATE_POST && |
4421 | http->state != HTTP_STATE_POST_SEND) | |
4422 | { | |
4423 | DEBUG_puts("1http_set_length: Not setting data_encoding/remaining."); | |
4424 | return (remaining); | |
4425 | } | |
4426 | ||
4427 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], | |
4428 | "chunked")) | |
4429 | { | |
4430 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4431 | "HTTP_ENCODING_CHUNKED."); | |
4432 | http->data_encoding = HTTP_ENCODING_CHUNKED; | |
4433 | } | |
4434 | else | |
4435 | { | |
4436 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4437 | "HTTP_ENCODING_LENGTH."); | |
4438 | http->data_encoding = HTTP_ENCODING_LENGTH; | |
4439 | } | |
4440 | ||
4441 | DEBUG_printf(("1http_set_length: Setting data_remaining to " CUPS_LLFMT ".", | |
4442 | CUPS_LLCAST remaining)); | |
4443 | http->data_remaining = remaining; | |
4444 | ||
4445 | if (remaining <= INT_MAX) | |
4446 | http->_data_remaining = remaining; | |
4447 | else | |
4448 | http->_data_remaining = INT_MAX; | |
4449 | } | |
4450 | ||
4451 | return (remaining); | |
4452 | } | |
4453 | ||
85dda01c MS |
4454 | /* |
4455 | * 'http_set_timeout()' - Set the socket timeout values. | |
4456 | */ | |
4457 | ||
4458 | static void | |
4459 | http_set_timeout(int fd, /* I - File descriptor */ | |
4460 | double timeout) /* I - Timeout in seconds */ | |
4461 | { | |
4462 | #ifdef WIN32 | |
4463 | DWORD tv = (DWORD)(timeout * 1000); | |
4464 | /* Timeout in milliseconds */ | |
4465 | ||
db8b865d MS |
4466 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4467 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4468 | |
4469 | #else | |
4470 | struct timeval tv; /* Timeout in secs and usecs */ | |
4471 | ||
4472 | tv.tv_sec = (int)timeout; | |
4473 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
4474 | ||
db8b865d MS |
4475 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4476 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4477 | #endif /* WIN32 */ |
4478 | } | |
4479 | ||
4480 | ||
4481 | /* | |
4482 | * 'http_set_wait()' - Set the default wait value for reads. | |
4483 | */ | |
4484 | ||
4485 | static void | |
e6b1a6a9 | 4486 | http_set_wait(http_t *http) /* I - HTTP connection */ |
85dda01c MS |
4487 | { |
4488 | if (http->blocking) | |
4489 | { | |
4490 | http->wait_value = (int)(http->timeout_value * 1000); | |
4491 | ||
4492 | if (http->wait_value <= 0) | |
4493 | http->wait_value = 60000; | |
4494 | } | |
4495 | else | |
4496 | http->wait_value = 10000; | |
4497 | } | |
4498 | ||
4499 | ||
9b66acc5 | 4500 | #ifdef HAVE_SSL |
ef416fc2 | 4501 | /* |
2c85b752 | 4502 | * 'http_tls_upgrade()' - Force upgrade to TLS encryption. |
ef416fc2 | 4503 | */ |
4504 | ||
89d46774 | 4505 | static int /* O - Status of connection */ |
2c85b752 | 4506 | http_tls_upgrade(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 4507 | { |
89d46774 | 4508 | int ret; /* Return value */ |
4509 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4510 | |
4511 | ||
2c85b752 | 4512 | DEBUG_printf(("7http_tls_upgrade(%p)", http)); |
ef416fc2 | 4513 | |
85b5d1df MS |
4514 | /* |
4515 | * Flush the connection to make sure any previous "Upgrade" message | |
4516 | * has been read. | |
4517 | */ | |
4518 | ||
4519 | httpFlush(http); | |
4520 | ||
ef416fc2 | 4521 | /* |
4522 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4523 | * request without interfering with the existing request data... | |
4524 | */ | |
4525 | ||
4526 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4527 | ||
4528 | /* | |
4529 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4530 | * encryption on the link... | |
4531 | */ | |
4532 | ||
cb7f98ee | 4533 | http->tls_upgrade = 1; |
f7deaa1a | 4534 | http->field_authorization = NULL; /* Don't free the auth string */ |
4535 | ||
b86bc4cf | 4536 | httpClearFields(http); |
4537 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
a469f8a5 | 4538 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4539 | |
b86bc4cf | 4540 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4541 | { |
4542 | /* | |
4543 | * Wait for the secure connection... | |
4544 | */ | |
4545 | ||
cb7f98ee | 4546 | while (httpUpdate(http) == HTTP_STATUS_CONTINUE); |
ef416fc2 | 4547 | } |
4548 | ||
ef416fc2 | 4549 | /* |
b86bc4cf | 4550 | * Restore the HTTP request data... |
ef416fc2 | 4551 | */ |
4552 | ||
b86bc4cf | 4553 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4554 | http->data_encoding = myhttp.data_encoding; |
4555 | http->data_remaining = myhttp.data_remaining; | |
4556 | http->_data_remaining = myhttp._data_remaining; | |
4557 | http->expect = myhttp.expect; | |
4558 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4559 | http->digest_tries = myhttp.digest_tries; |
cb7f98ee | 4560 | http->tls_upgrade = 0; |
ef416fc2 | 4561 | |
4562 | /* | |
4563 | * See if we actually went secure... | |
4564 | */ | |
4565 | ||
4566 | if (!http->tls) | |
4567 | { | |
4568 | /* | |
4569 | * Server does not support HTTP upgrade... | |
4570 | */ | |
4571 | ||
2c85b752 | 4572 | DEBUG_puts("8http_tls_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4573 | |
87e98392 | 4574 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 4575 | |
4576 | http->fd = -1; | |
4577 | ||
4578 | return (-1); | |
4579 | } | |
4580 | else | |
4581 | return (ret); | |
4582 | } | |
4583 | #endif /* HAVE_SSL */ | |
4584 | ||
4585 | ||
ef416fc2 | 4586 | /* |
4587 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4588 | */ | |
ef55b745 | 4589 | |
0fa6c7fa | 4590 | static ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 4591 | http_write(http_t *http, /* I - HTTP connection */ |
f11a948a | 4592 | const char *buffer, /* I - Buffer for data */ |
0fa6c7fa | 4593 | size_t length) /* I - Number of bytes to write */ |
ef416fc2 | 4594 | { |
0fa6c7fa MS |
4595 | ssize_t tbytes, /* Total bytes sent */ |
4596 | bytes; /* Bytes sent */ | |
ef416fc2 | 4597 | |
4598 | ||
0fa6c7fa MS |
4599 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
4600 | buffer, CUPS_LLCAST length)); | |
f11a948a MS |
4601 | http->error = 0; |
4602 | tbytes = 0; | |
ef416fc2 | 4603 | |
4604 | while (length > 0) | |
4605 | { | |
12f89d24 MS |
4606 | DEBUG_printf(("3http_write: About to write %d bytes.", (int)length)); |
4607 | ||
85dda01c MS |
4608 | if (http->timeout_cb) |
4609 | { | |
4610 | #ifdef HAVE_POLL | |
4611 | struct pollfd pfd; /* Polled file descriptor */ | |
4612 | #else | |
4613 | fd_set output_set; /* Output ready for write? */ | |
4614 | struct timeval timeout; /* Timeout value */ | |
4615 | #endif /* HAVE_POLL */ | |
4616 | int nfds; /* Result from select()/poll() */ | |
4617 | ||
4618 | do | |
4619 | { | |
4620 | #ifdef HAVE_POLL | |
4621 | pfd.fd = http->fd; | |
4622 | pfd.events = POLLOUT; | |
4623 | ||
4624 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
82cc1f9a MS |
4625 | (errno == EINTR || errno == EAGAIN)) |
4626 | /* do nothing */; | |
85dda01c MS |
4627 | |
4628 | #else | |
4629 | do | |
4630 | { | |
4631 | FD_ZERO(&output_set); | |
4632 | FD_SET(http->fd, &output_set); | |
4633 | ||
4634 | timeout.tv_sec = http->wait_value / 1000; | |
4635 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4636 | ||
4637 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4638 | } | |
4639 | # ifdef WIN32 | |
4640 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4641 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4642 | # else | |
4643 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4644 | # endif /* WIN32 */ | |
4645 | #endif /* HAVE_POLL */ | |
4646 | ||
4647 | if (nfds < 0) | |
4648 | { | |
4649 | http->error = errno; | |
4650 | return (-1); | |
4651 | } | |
4652 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
4653 | { | |
4654 | #ifdef WIN32 | |
83e08001 | 4655 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4656 | #else |
4657 | http->error = EWOULDBLOCK; | |
4658 | #endif /* WIN32 */ | |
4659 | return (-1); | |
4660 | } | |
4661 | } | |
4662 | while (nfds <= 0); | |
4663 | } | |
4664 | ||
ef416fc2 | 4665 | #ifdef HAVE_SSL |
4666 | if (http->tls) | |
2c85b752 | 4667 | bytes = http_tls_write(http, buffer, length); |
ef416fc2 | 4668 | else |
4669 | #endif /* HAVE_SSL */ | |
4670 | bytes = send(http->fd, buffer, length, 0); | |
4671 | ||
0fa6c7fa MS |
4672 | DEBUG_printf(("3http_write: Write of " CUPS_LLFMT " bytes returned " |
4673 | CUPS_LLFMT ".", CUPS_LLCAST length, CUPS_LLCAST bytes)); | |
12f89d24 | 4674 | |
ef416fc2 | 4675 | if (bytes < 0) |
4676 | { | |
4677 | #ifdef WIN32 | |
10d09e33 | 4678 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4679 | continue; |
10d09e33 MS |
4680 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4681 | { | |
4682 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4683 | continue; | |
4684 | ||
4685 | http->error = WSAGetLastError(); | |
4686 | } | |
4687 | else if (WSAGetLastError() != http->error && | |
4688 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4689 | { |
4690 | http->error = WSAGetLastError(); | |
4691 | continue; | |
4692 | } | |
10d09e33 | 4693 | |
ef416fc2 | 4694 | #else |
10d09e33 | 4695 | if (errno == EINTR) |
ef416fc2 | 4696 | continue; |
10d09e33 MS |
4697 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4698 | { | |
4699 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4700 | continue; | |
4701 | else if (!http->timeout_cb && errno == EAGAIN) | |
4702 | continue; | |
4703 | ||
4704 | http->error = errno; | |
4705 | } | |
ef416fc2 | 4706 | else if (errno != http->error && errno != ECONNRESET) |
4707 | { | |
4708 | http->error = errno; | |
4709 | continue; | |
4710 | } | |
4711 | #endif /* WIN32 */ | |
4712 | ||
f8b3a85b MS |
4713 | DEBUG_printf(("3http_write: error writing data (%s).", |
4714 | strerror(http->error))); | |
ef416fc2 | 4715 | |
4716 | return (-1); | |
4717 | } | |
4718 | ||
4719 | buffer += bytes; | |
4720 | tbytes += bytes; | |
4721 | length -= bytes; | |
4722 | } | |
4723 | ||
4724 | #ifdef DEBUG | |
ae71f5de | 4725 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 4726 | #endif /* DEBUG */ |
4727 | ||
0fa6c7fa | 4728 | DEBUG_printf(("3http_write: Returning " CUPS_LLFMT ".", CUPS_LLCAST tbytes)); |
f8b3a85b | 4729 | |
ef416fc2 | 4730 | return (tbytes); |
4731 | } | |
4732 | ||
4733 | ||
4734 | /* | |
4735 | * 'http_write_chunk()' - Write a chunked buffer. | |
4736 | */ | |
4737 | ||
0fa6c7fa | 4738 | static ssize_t /* O - Number bytes written */ |
e6b1a6a9 | 4739 | http_write_chunk(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 4740 | const char *buffer, /* I - Buffer to write */ |
0fa6c7fa | 4741 | size_t length) /* I - Length of buffer */ |
ef416fc2 | 4742 | { |
0fa6c7fa MS |
4743 | char header[16]; /* Chunk header */ |
4744 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 4745 | |
f11a948a | 4746 | |
0fa6c7fa MS |
4747 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
4748 | http, buffer, CUPS_LLCAST length)); | |
ef416fc2 | 4749 | |
4750 | /* | |
4751 | * Write the chunk header, data, and trailer. | |
4752 | */ | |
4753 | ||
0fa6c7fa MS |
4754 | snprintf(header, sizeof(header), "%x\r\n", (unsigned)length); |
4755 | if (http_write(http, header, strlen(header)) < 0) | |
ef416fc2 | 4756 | { |
0fa6c7fa | 4757 | DEBUG_puts("8http_write_chunk: http_write of length failed."); |
ef416fc2 | 4758 | return (-1); |
4759 | } | |
4760 | ||
4761 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4762 | { | |
0fa6c7fa | 4763 | DEBUG_puts("8http_write_chunk: http_write of buffer failed."); |
ef416fc2 | 4764 | return (-1); |
4765 | } | |
4766 | ||
4767 | if (http_write(http, "\r\n", 2) < 0) | |
4768 | { | |
0fa6c7fa | 4769 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed."); |
ef416fc2 | 4770 | return (-1); |
4771 | } | |
4772 | ||
4773 | return (bytes); | |
4774 | } | |
4775 | ||
4776 | ||
ef416fc2 | 4777 | /* |
f2d18633 | 4778 | * End of "$Id$". |
ef416fc2 | 4779 | */ |