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Commit | Line | Data |
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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 | ||
541 | http->encryption = e; | |
542 | ||
cb7f98ee MS |
543 | if ((http->encryption == HTTP_ENCRYPTION_ALWAYS && !http->tls) || |
544 | (http->encryption == HTTP_ENCRYPTION_NEVER && http->tls)) | |
545 | return (httpReconnect2(http, 30000, NULL)); | |
546 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) | |
2c85b752 | 547 | return (http_tls_upgrade(http)); |
ef416fc2 | 548 | else |
549 | return (0); | |
550 | #else | |
cb7f98ee | 551 | if (e == HTTP_ENCRYPTION_ALWAYS || e == HTTP_ENCRYPTION_REQUIRED) |
ef416fc2 | 552 | return (-1); |
553 | else | |
554 | return (0); | |
555 | #endif /* HAVE_SSL */ | |
556 | } | |
557 | ||
558 | ||
ecdc0628 | 559 | /* |
560 | * 'httpError()' - Get the last error on a connection. | |
561 | */ | |
562 | ||
563 | int /* O - Error code (errno) value */ | |
e6b1a6a9 | 564 | httpError(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 565 | { |
566 | if (http) | |
567 | return (http->error); | |
568 | else | |
569 | return (EINVAL); | |
570 | } | |
571 | ||
572 | ||
48bd1142 MS |
573 | /* |
574 | * 'httpFieldValue()' - Return the HTTP field enumeration value for a field | |
575 | * name. | |
576 | */ | |
577 | ||
578 | http_field_t /* O - Field index */ | |
579 | httpFieldValue(const char *name) /* I - String name */ | |
580 | { | |
581 | int i; /* Looping var */ | |
582 | ||
583 | ||
584 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
585 | if (!_cups_strcasecmp(name, http_fields[i])) | |
586 | return ((http_field_t)i); | |
587 | ||
588 | return (HTTP_FIELD_UNKNOWN); | |
589 | } | |
590 | ||
591 | ||
ef416fc2 | 592 | /* |
593 | * 'httpFlush()' - Flush data from a HTTP connection. | |
594 | */ | |
595 | ||
596 | void | |
e6b1a6a9 | 597 | httpFlush(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 598 | { |
f8b3a85b MS |
599 | char buffer[8192]; /* Junk buffer */ |
600 | int blocking; /* To block or not to block */ | |
601 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 602 | |
603 | ||
f11a948a | 604 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
48bd1142 | 605 | httpStateString(http->state))); |
ef416fc2 | 606 | |
c1420c87 MS |
607 | /* |
608 | * Nothing to do if we are in the "waiting" state... | |
609 | */ | |
610 | ||
611 | if (http->state == HTTP_STATE_WAITING) | |
612 | return; | |
613 | ||
fa73b229 | 614 | /* |
615 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
616 | */ | |
617 | ||
618 | blocking = http->blocking; | |
619 | http->blocking = 0; | |
620 | ||
621 | /* | |
622 | * Read any data we can... | |
623 | */ | |
624 | ||
f8b3a85b | 625 | oldstate = http->state; |
a4d04587 | 626 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 627 | |
628 | /* | |
629 | * Restore blocking and reset the connection if we didn't get all of | |
630 | * the remaining data... | |
631 | */ | |
632 | ||
633 | http->blocking = blocking; | |
634 | ||
a469f8a5 MS |
635 | if (http->state == oldstate && http->state != HTTP_STATE_WAITING && |
636 | http->fd >= 0) | |
fa73b229 | 637 | { |
638 | /* | |
639 | * Didn't get the data back, so close the current connection. | |
640 | */ | |
641 | ||
c41769ff MS |
642 | #ifdef HAVE_LIBZ |
643 | if (http->coding) | |
644 | http_content_coding_finish(http); | |
645 | #endif /* HAVE_LIBZ */ | |
646 | ||
a469f8a5 MS |
647 | DEBUG_puts("1httpFlush: Setting state to HTTP_STATE_WAITING and closing."); |
648 | ||
649 | http->state = HTTP_STATE_WAITING; | |
fa73b229 | 650 | |
651 | #ifdef HAVE_SSL | |
652 | if (http->tls) | |
2c85b752 | 653 | http_tls_stop(http); |
fa73b229 | 654 | #endif /* HAVE_SSL */ |
655 | ||
87e98392 | 656 | httpAddrClose(NULL, http->fd); |
fa73b229 | 657 | |
658 | http->fd = -1; | |
659 | } | |
ef416fc2 | 660 | } |
661 | ||
662 | ||
663 | /* | |
664 | * 'httpFlushWrite()' - Flush data in write buffer. | |
665 | * | |
f3c17241 | 666 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 667 | */ |
668 | ||
669 | int /* O - Bytes written or -1 on error */ | |
e6b1a6a9 | 670 | httpFlushWrite(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 671 | { |
672 | int bytes; /* Bytes written */ | |
673 | ||
674 | ||
a469f8a5 MS |
675 | DEBUG_printf(("httpFlushWrite(http=%p) data_encoding=%d", http, |
676 | http ? http->data_encoding : -1)); | |
ef416fc2 | 677 | |
678 | if (!http || !http->wused) | |
f8b3a85b MS |
679 | { |
680 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
681 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 682 | return (0); |
f8b3a85b | 683 | } |
ef416fc2 | 684 | |
a469f8a5 | 685 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 686 | bytes = http_write_chunk(http, http->wbuffer, http->wused); |
687 | else | |
688 | bytes = http_write(http, http->wbuffer, http->wused); | |
689 | ||
690 | http->wused = 0; | |
691 | ||
22c9029b | 692 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", bytes, errno)); |
f8b3a85b | 693 | |
ef416fc2 | 694 | return (bytes); |
695 | } | |
696 | ||
697 | ||
7cf5915e MS |
698 | /* |
699 | * 'httpFreeCredentials()' - Free an array of credentials. | |
700 | */ | |
701 | ||
702 | void | |
703 | httpFreeCredentials( | |
704 | cups_array_t *credentials) /* I - Array of credentials */ | |
705 | { | |
706 | http_credential_t *credential; /* Credential */ | |
707 | ||
708 | ||
709 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
710 | credential; | |
711 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
712 | { | |
713 | cupsArrayRemove(credentials, credential); | |
714 | free((void *)credential->data); | |
715 | free(credential); | |
716 | } | |
717 | ||
718 | cupsArrayDelete(credentials); | |
719 | } | |
720 | ||
721 | ||
ef416fc2 | 722 | /* |
723 | * 'httpGet()' - Send a GET request to the server. | |
724 | */ | |
725 | ||
726 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 727 | httpGet(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 728 | const char *uri) /* I - URI to get */ |
729 | { | |
cb7f98ee | 730 | return (http_send(http, HTTP_STATE_GET, uri)); |
ef416fc2 | 731 | } |
732 | ||
733 | ||
e6b1a6a9 MS |
734 | /* |
735 | * 'httpGetActivity()' - Get the most recent activity for a connection. | |
736 | * | |
737 | * The return value is the UNIX time of the last read or write. | |
738 | * | |
739 | * @since CUPS 2.0@ | |
740 | */ | |
741 | ||
742 | time_t /* O - Time of last read or write */ | |
743 | httpGetActivity(http_t *http) /* I - HTTP connection */ | |
744 | { | |
745 | return (http ? http->activity : 0); | |
746 | } | |
747 | ||
748 | ||
6961465f MS |
749 | /* |
750 | * 'httpGetAuthString()' - Get the current authorization string. | |
751 | * | |
752 | * The authorization string is set by cupsDoAuthentication() and | |
753 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
754 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
755 | * value. | |
756 | * | |
757 | * @since CUPS 1.3/OS X 10.5@ | |
758 | */ | |
759 | ||
760 | char * /* O - Authorization string */ | |
e6b1a6a9 | 761 | httpGetAuthString(http_t *http) /* I - HTTP connection */ |
6961465f MS |
762 | { |
763 | if (http) | |
764 | return (http->authstring); | |
765 | else | |
766 | return (NULL); | |
767 | } | |
768 | ||
769 | ||
770 | /* | |
771 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
772 | * | |
773 | * @since CUPS 1.2/OS X 10.5@ | |
774 | */ | |
775 | ||
776 | int /* O - 1 if blocking, 0 if non-blocking */ | |
e6b1a6a9 | 777 | httpGetBlocking(http_t *http) /* I - HTTP connection */ |
6961465f MS |
778 | { |
779 | return (http ? http->blocking : 0); | |
780 | } | |
781 | ||
782 | ||
a469f8a5 MS |
783 | /* |
784 | * 'httpGetContentEncoding()' - Get a common content encoding, if any, between | |
785 | * the client and server. | |
786 | * | |
787 | * This function uses the value of the Accepts-Encoding HTTP header and must be | |
788 | * called after receiving a response from the server or a request from the | |
789 | * client. The value returned can be use in subsequent requests (for clients) | |
790 | * or in the response (for servers) in order to compress the content stream. | |
791 | * | |
9c0e8e5d | 792 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
793 | */ |
794 | ||
795 | const char * /* O - Content-Coding value or | |
796 | @code NULL@ for the identity | |
797 | coding. */ | |
2c85b752 | 798 | httpGetContentEncoding(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
799 | { |
800 | #ifdef HAVE_LIBZ | |
801 | if (http && http->accept_encoding) | |
802 | { | |
803 | int i; /* Looping var */ | |
804 | char temp[HTTP_MAX_VALUE], /* Copy of Accepts-Encoding value */ | |
805 | *start, /* Start of coding value */ | |
806 | *end; /* End of coding value */ | |
807 | double qvalue; /* "qvalue" for coding */ | |
808 | struct lconv *loc = localeconv(); /* Locale data */ | |
809 | static const char * const codings[] = | |
810 | { /* Supported content codings */ | |
811 | "deflate", | |
812 | "gzip", | |
813 | "x-deflate", | |
814 | "x-gzip" | |
815 | }; | |
816 | ||
817 | strlcpy(temp, http->accept_encoding, sizeof(temp)); | |
818 | ||
819 | for (start = temp; *start; start = end) | |
820 | { | |
821 | /* | |
822 | * Find the end of the coding name... | |
823 | */ | |
824 | ||
825 | qvalue = 1.0; | |
826 | end = start; | |
827 | while (*end && *end != ';' && *end != ',' && !isspace(*end & 255)) | |
828 | end ++; | |
829 | ||
830 | if (*end == ';') | |
831 | { | |
832 | /* | |
833 | * Grab the qvalue as needed... | |
834 | */ | |
835 | ||
836 | if (!strncmp(end, ";q=", 3)) | |
837 | qvalue = _cupsStrScand(end + 3, NULL, loc); | |
838 | ||
839 | /* | |
840 | * Skip past all attributes... | |
841 | */ | |
842 | ||
843 | *end++ = '\0'; | |
844 | while (*end && *end != ',' && !isspace(*end & 255)) | |
845 | end ++; | |
846 | } | |
847 | else if (*end) | |
848 | *end++ = '\0'; | |
849 | ||
850 | while (*end && isspace(*end & 255)) | |
851 | end ++; | |
852 | ||
853 | /* | |
854 | * Check value if it matches something we support... | |
855 | */ | |
856 | ||
857 | if (qvalue <= 0.0) | |
858 | continue; | |
859 | ||
860 | for (i = 0; i < (int)(sizeof(codings) / sizeof(codings[0])); i ++) | |
861 | if (!strcmp(start, codings[i])) | |
862 | return (codings[i]); | |
863 | } | |
864 | } | |
865 | #endif /* HAVE_LIBZ */ | |
866 | ||
867 | return (NULL); | |
868 | } | |
869 | ||
870 | ||
ecdc0628 | 871 | /* |
872 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 873 | * |
f3c17241 | 874 | * @since CUPS 1.1.19/OS X 10.3@ |
ecdc0628 | 875 | */ |
876 | ||
877 | const char * /* O - Cookie data or NULL */ | |
878 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
879 | { | |
880 | return (http ? http->cookie : NULL); | |
881 | } | |
882 | ||
883 | ||
5ec1fd3d MS |
884 | /* |
885 | * 'httpGetEncryption()' - Get the current encryption mode of a connection. | |
886 | * | |
887 | * This function returns the encryption mode for the connection. Use the | |
888 | * @link httpIsEncrypted@ function to determine whether a TLS session has | |
889 | * been established. | |
890 | * | |
891 | * @since CUPS 2.0@ | |
892 | */ | |
893 | ||
894 | http_encryption_t /* O - Current encryption mode */ | |
895 | httpGetEncryption(http_t *http) /* I - HTTP connection */ | |
896 | { | |
897 | return (http ? http->encryption : HTTP_ENCRYPTION_IF_REQUESTED); | |
898 | } | |
899 | ||
900 | ||
a469f8a5 MS |
901 | /* |
902 | * 'httpGetExpect()' - Get the value of the Expect header, if any. | |
903 | * | |
904 | * Returns @code HTTP_STATUS_NONE@ if there is no Expect header, otherwise | |
905 | * returns the expected HTTP status code, typically @code HTTP_STATUS_CONTINUE@. | |
906 | * | |
9c0e8e5d | 907 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
908 | */ |
909 | ||
910 | http_status_t /* O - Expect: status, if any */ | |
2c85b752 | 911 | httpGetExpect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
912 | { |
913 | if (!http) | |
914 | return (HTTP_STATUS_ERROR); | |
915 | else | |
916 | return (http->expect); | |
917 | } | |
918 | ||
919 | ||
ecdc0628 | 920 | /* |
921 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
922 | * | |
f3c17241 | 923 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 924 | */ |
925 | ||
926 | int /* O - File descriptor or -1 if none */ | |
e6b1a6a9 | 927 | httpGetFd(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 928 | { |
929 | return (http ? http->fd : -1); | |
930 | } | |
931 | ||
932 | ||
933 | /* | |
934 | * 'httpGetField()' - Get a field value from a request/response. | |
935 | */ | |
936 | ||
937 | const char * /* O - Field value */ | |
e6b1a6a9 | 938 | httpGetField(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 939 | http_field_t field) /* I - Field to get */ |
940 | { | |
941 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
942 | return (NULL); | |
a469f8a5 MS |
943 | |
944 | switch (field) | |
f7deaa1a | 945 | { |
a469f8a5 MS |
946 | case HTTP_FIELD_ACCEPT_ENCODING : |
947 | return (http->accept_encoding); | |
f7deaa1a | 948 | |
a469f8a5 MS |
949 | case HTTP_FIELD_ALLOW : |
950 | return (http->allow); | |
951 | ||
952 | case HTTP_FIELD_SERVER : | |
953 | return (http->server); | |
954 | ||
955 | case HTTP_FIELD_AUTHORIZATION : | |
956 | if (http->field_authorization) | |
957 | { | |
958 | /* | |
959 | * Special case for WWW-Authenticate: as its contents can be | |
960 | * longer than HTTP_MAX_VALUE... | |
961 | */ | |
962 | ||
963 | return (http->field_authorization); | |
964 | } | |
965 | ||
966 | default : | |
967 | return (http->fields[field]); | |
f7deaa1a | 968 | } |
ecdc0628 | 969 | } |
970 | ||
971 | ||
e6b1a6a9 MS |
972 | /* |
973 | * 'httpGetKeepAlive()' - Get the current Keep-Alive state of the connection. | |
974 | * | |
975 | * @since CUPS 2.0@ | |
976 | */ | |
977 | ||
978 | http_keepalive_t /* O - Keep-Alive state */ | |
979 | httpGetKeepAlive(http_t *http) /* I - HTTP connection */ | |
980 | { | |
981 | return (http ? http->keep_alive : HTTP_KEEPALIVE_OFF); | |
982 | } | |
983 | ||
984 | ||
ecdc0628 | 985 | /* |
986 | * 'httpGetLength()' - Get the amount of data remaining from the | |
987 | * content-length or transfer-encoding fields. | |
988 | * | |
989 | * This function is deprecated and will not return lengths larger than | |
990 | * 2^31 - 1; use httpGetLength2() instead. | |
991 | * | |
992 | * @deprecated@ | |
993 | */ | |
994 | ||
995 | int /* O - Content length */ | |
e6b1a6a9 | 996 | httpGetLength(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 997 | { |
998 | /* | |
999 | * Get the read content length and return the 32-bit value. | |
1000 | */ | |
1001 | ||
1002 | if (http) | |
1003 | { | |
1004 | httpGetLength2(http); | |
1005 | ||
1006 | return (http->_data_remaining); | |
1007 | } | |
1008 | else | |
1009 | return (-1); | |
1010 | } | |
1011 | ||
1012 | ||
1013 | /* | |
1014 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1015 | * content-length or transfer-encoding fields. | |
1016 | * | |
1017 | * This function returns the complete content length, even for | |
1018 | * content larger than 2^31 - 1. | |
1019 | * | |
f3c17241 | 1020 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 1021 | */ |
1022 | ||
1023 | off_t /* O - Content length */ | |
e6b1a6a9 | 1024 | httpGetLength2(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1025 | { |
a469f8a5 MS |
1026 | off_t remaining; /* Remaining length */ |
1027 | ||
1028 | ||
f11a948a | 1029 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
48bd1142 | 1030 | httpStateString(http->state))); |
ecdc0628 | 1031 | |
1032 | if (!http) | |
1033 | return (-1); | |
1034 | ||
88f9aafc | 1035 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1036 | { |
e07d4801 | 1037 | DEBUG_puts("4httpGetLength2: chunked request!"); |
a469f8a5 | 1038 | remaining = 0; |
ecdc0628 | 1039 | } |
1040 | else | |
1041 | { | |
ecdc0628 | 1042 | /* |
1043 | * The following is a hack for HTTP servers that don't send a | |
a469f8a5 | 1044 | * Content-Length or Transfer-Encoding field... |
ecdc0628 | 1045 | * |
a469f8a5 | 1046 | * If there is no Content-Length then the connection must close |
ecdc0628 | 1047 | * after the transfer is complete... |
1048 | */ | |
1049 | ||
b86bc4cf | 1050 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1051 | { | |
1052 | /* | |
a469f8a5 MS |
1053 | * Default content length is 0 for errors and certain types of operations, |
1054 | * and 2^31-1 for other successful requests... | |
b86bc4cf | 1055 | */ |
1056 | ||
cb7f98ee | 1057 | if (http->status >= HTTP_STATUS_MULTIPLE_CHOICES || |
a469f8a5 MS |
1058 | http->state == HTTP_STATE_OPTIONS || |
1059 | (http->state == HTTP_STATE_GET && http->mode == _HTTP_MODE_SERVER) || | |
1060 | http->state == HTTP_STATE_HEAD || | |
1061 | (http->state == HTTP_STATE_PUT && http->mode == _HTTP_MODE_CLIENT) || | |
1062 | http->state == HTTP_STATE_DELETE || | |
1063 | http->state == HTTP_STATE_TRACE || | |
1064 | http->state == HTTP_STATE_CONNECT) | |
1065 | remaining = 0; | |
b86bc4cf | 1066 | else |
a469f8a5 | 1067 | remaining = 2147483647; |
b86bc4cf | 1068 | } |
a469f8a5 MS |
1069 | else if ((remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], |
1070 | NULL, 10)) < 0) | |
1071 | remaining = -1; | |
ecdc0628 | 1072 | |
e07d4801 | 1073 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
a469f8a5 | 1074 | CUPS_LLCAST remaining)); |
ecdc0628 | 1075 | } |
1076 | ||
a469f8a5 | 1077 | return (remaining); |
ecdc0628 | 1078 | } |
1079 | ||
1080 | ||
d21dc0ed MS |
1081 | /* |
1082 | * 'httpGetPending()' - Get the number of bytes that are buffered for writing. | |
1083 | * | |
1084 | * @since CUPS 2.0@ | |
1085 | */ | |
1086 | ||
1087 | size_t /* O - Number of bytes buffered */ | |
1088 | httpGetPending(http_t *http) /* I - HTTP connection */ | |
1089 | { | |
1090 | return (http ? http->wused : 0); | |
1091 | } | |
1092 | ||
1093 | ||
e6b1a6a9 MS |
1094 | /* |
1095 | * 'httpGetReady()' - Get the number of bytes that can be read without blocking. | |
1096 | * | |
1097 | * @since CUPS 2.0@ | |
1098 | */ | |
1099 | ||
1100 | size_t /* O - Number of bytes available */ | |
1101 | httpGetReady(http_t *http) /* I - HTTP connection */ | |
1102 | { | |
1103 | if (!http) | |
1104 | return (0); | |
1105 | else if (http->used > 0) | |
1106 | return (http->used); | |
1107 | #ifdef HAVE_SSL | |
1108 | else if (http->tls) | |
1109 | { | |
1110 | size_t ready; /* Ready bytes */ | |
1111 | ||
1112 | # ifdef HAVE_LIBSSL | |
1113 | if ((ready = SSL_pending((SSL *)(http->tls))) > 0) | |
1114 | return (ready); | |
1115 | # elif defined(HAVE_GNUTLS) | |
1116 | if ((ready = gnutls_record_check_pending(http->tls)) > 0) | |
1117 | return (ready); | |
1118 | # elif defined(HAVE_CDSASSL) | |
1119 | if (!SSLGetBufferedReadSize(http->tls, &ready) && ready > 0) | |
1120 | return (ready); | |
1121 | # endif /* HAVE_LIBSSL */ | |
1122 | } | |
1123 | #endif /* HAVE_SSL */ | |
1124 | ||
1125 | return (0); | |
1126 | } | |
1127 | ||
1128 | ||
5ec1fd3d MS |
1129 | /* |
1130 | * 'httpGetRemaining()' - Get the number of remaining bytes in the message | |
1131 | * body or current chunk. | |
1132 | * | |
1133 | * The @link httpIsChunked@ function can be used to determine whether the | |
1134 | * message body is chunked or fixed-length. | |
1135 | * | |
1136 | * @since CUPS 2.0@ | |
1137 | */ | |
1138 | ||
1139 | size_t /* O - Remaining bytes */ | |
1140 | httpGetRemaining(http_t *http) /* I - HTTP connection */ | |
1141 | { | |
1142 | return (http ? http->data_remaining : 0); | |
1143 | } | |
1144 | ||
1145 | ||
ef416fc2 | 1146 | /* |
1147 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1148 | */ | |
1149 | ||
1150 | char * /* O - Line or NULL */ | |
1151 | httpGets(char *line, /* I - Line to read into */ | |
1152 | int length, /* I - Max length of buffer */ | |
e6b1a6a9 | 1153 | http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1154 | { |
1155 | char *lineptr, /* Pointer into line */ | |
1156 | *lineend, /* End of line */ | |
1157 | *bufptr, /* Pointer into input buffer */ | |
1158 | *bufend; /* Pointer to end of buffer */ | |
1159 | int bytes, /* Number of bytes read */ | |
1160 | eol; /* End-of-line? */ | |
1161 | ||
1162 | ||
e07d4801 | 1163 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1164 | |
0fa6c7fa | 1165 | if (!http || !line || length <= 1) |
ef416fc2 | 1166 | return (NULL); |
1167 | ||
1168 | /* | |
1169 | * Read a line from the buffer... | |
1170 | */ | |
f11a948a MS |
1171 | |
1172 | http->error = 0; | |
1173 | lineptr = line; | |
1174 | lineend = line + length - 1; | |
1175 | eol = 0; | |
ef416fc2 | 1176 | |
1177 | while (lineptr < lineend) | |
1178 | { | |
1179 | /* | |
1180 | * Pre-load the buffer as needed... | |
1181 | */ | |
1182 | ||
1183 | #ifdef WIN32 | |
1184 | WSASetLastError(0); | |
1185 | #else | |
1186 | errno = 0; | |
1187 | #endif /* WIN32 */ | |
1188 | ||
1189 | while (http->used == 0) | |
1190 | { | |
1191 | /* | |
1192 | * No newline; see if there is more data to be read... | |
1193 | */ | |
1194 | ||
85dda01c | 1195 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1196 | { |
f228370c MS |
1197 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1198 | continue; | |
1199 | ||
e07d4801 | 1200 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1201 | #ifdef WIN32 |
1202 | http->error = WSAETIMEDOUT; | |
1203 | #else | |
89d46774 | 1204 | http->error = ETIMEDOUT; |
b86bc4cf | 1205 | #endif /* WIN32 */ |
ef416fc2 | 1206 | return (NULL); |
89d46774 | 1207 | } |
ef416fc2 | 1208 | |
0fa6c7fa MS |
1209 | bytes = http_read(http, http->buffer + http->used, |
1210 | HTTP_MAX_BUFFER - http->used); | |
ef416fc2 | 1211 | |
0fa6c7fa | 1212 | DEBUG_printf(("4httpGets: read %d bytes.", bytes)); |
12f89d24 | 1213 | |
ef416fc2 | 1214 | if (bytes < 0) |
1215 | { | |
1216 | /* | |
1217 | * Nope, can't get a line this time... | |
1218 | */ | |
1219 | ||
1220 | #ifdef WIN32 | |
cc754834 MS |
1221 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1222 | ||
10d09e33 | 1223 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1224 | continue; |
10d09e33 MS |
1225 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1226 | { | |
1227 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1228 | continue; | |
1229 | ||
1230 | http->error = WSAGetLastError(); | |
1231 | } | |
cc754834 | 1232 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1233 | { |
1234 | http->error = WSAGetLastError(); | |
1235 | continue; | |
1236 | } | |
1237 | ||
ef416fc2 | 1238 | #else |
e07d4801 | 1239 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1240 | |
10d09e33 | 1241 | if (errno == EINTR) |
ef416fc2 | 1242 | continue; |
10d09e33 MS |
1243 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1244 | { | |
1245 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1246 | continue; | |
1247 | else if (!http->timeout_cb && errno == EAGAIN) | |
1248 | continue; | |
1249 | ||
1250 | http->error = errno; | |
1251 | } | |
ef416fc2 | 1252 | else if (errno != http->error) |
1253 | { | |
1254 | http->error = errno; | |
1255 | continue; | |
1256 | } | |
1257 | #endif /* WIN32 */ | |
1258 | ||
1259 | return (NULL); | |
1260 | } | |
1261 | else if (bytes == 0) | |
1262 | { | |
1263 | http->error = EPIPE; | |
1264 | ||
1265 | return (NULL); | |
1266 | } | |
1267 | ||
1268 | /* | |
1269 | * Yup, update the amount used... | |
1270 | */ | |
1271 | ||
1272 | http->used += bytes; | |
1273 | } | |
1274 | ||
1275 | /* | |
1276 | * Now copy as much of the current line as possible... | |
1277 | */ | |
1278 | ||
1279 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1280 | lineptr < lineend && bufptr < bufend;) | |
1281 | { | |
1282 | if (*bufptr == 0x0a) | |
1283 | { | |
1284 | eol = 1; | |
1285 | bufptr ++; | |
1286 | break; | |
1287 | } | |
1288 | else if (*bufptr == 0x0d) | |
1289 | bufptr ++; | |
1290 | else | |
1291 | *lineptr++ = *bufptr++; | |
1292 | } | |
1293 | ||
b86bc4cf | 1294 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1295 | if (http->used > 0) |
1296 | memmove(http->buffer, bufptr, http->used); | |
1297 | ||
1298 | if (eol) | |
1299 | { | |
1300 | /* | |
1301 | * End of line... | |
1302 | */ | |
1303 | ||
1304 | http->activity = time(NULL); | |
1305 | ||
1306 | *lineptr = '\0'; | |
ef55b745 | 1307 | |
e07d4801 | 1308 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1309 | |
1310 | return (line); | |
1311 | } | |
1312 | } | |
1313 | ||
e07d4801 | 1314 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1315 | |
1316 | return (NULL); | |
1317 | } | |
1318 | ||
1319 | ||
a2326b5b MS |
1320 | /* |
1321 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1322 | */ | |
1323 | ||
1324 | http_state_t /* O - HTTP state */ | |
e6b1a6a9 | 1325 | httpGetState(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1326 | { |
a469f8a5 | 1327 | return (http ? http->state : HTTP_STATE_ERROR); |
a2326b5b MS |
1328 | } |
1329 | ||
1330 | ||
1331 | /* | |
1332 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1333 | * | |
f3c17241 | 1334 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1335 | */ |
1336 | ||
1337 | http_status_t /* O - HTTP status */ | |
e6b1a6a9 | 1338 | httpGetStatus(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1339 | { |
cb7f98ee | 1340 | return (http ? http->status : HTTP_STATUS_ERROR); |
a2326b5b MS |
1341 | } |
1342 | ||
1343 | ||
1344 | /* | |
1345 | * 'httpGetSubField()' - Get a sub-field value. | |
1346 | * | |
1347 | * @deprecated@ | |
1348 | */ | |
1349 | ||
1350 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1351 | httpGetSubField(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1352 | http_field_t field, /* I - Field index */ |
1353 | const char *name, /* I - Name of sub-field */ | |
1354 | char *value) /* O - Value string */ | |
1355 | { | |
1356 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1357 | } | |
1358 | ||
1359 | ||
1360 | /* | |
1361 | * 'httpGetSubField2()' - Get a sub-field value. | |
1362 | * | |
f3c17241 | 1363 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1364 | */ |
1365 | ||
1366 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1367 | httpGetSubField2(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1368 | http_field_t field, /* I - Field index */ |
1369 | const char *name, /* I - Name of sub-field */ | |
1370 | char *value, /* O - Value string */ | |
1371 | int valuelen) /* I - Size of value buffer */ | |
1372 | { | |
1373 | const char *fptr; /* Pointer into field */ | |
1374 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1375 | *ptr, /* Pointer into string buffer */ | |
1376 | *end; /* End of value buffer */ | |
1377 | ||
1378 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " | |
1379 | "valuelen=%d)", http, field, name, value, valuelen)); | |
1380 | ||
1381 | if (!http || !name || !value || valuelen < 2 || | |
1382 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1383 | return (NULL); | |
1384 | ||
1385 | end = value + valuelen - 1; | |
1386 | ||
1387 | for (fptr = http->fields[field]; *fptr;) | |
1388 | { | |
1389 | /* | |
1390 | * Skip leading whitespace... | |
1391 | */ | |
1392 | ||
1393 | while (_cups_isspace(*fptr)) | |
1394 | fptr ++; | |
1395 | ||
1396 | if (*fptr == ',') | |
1397 | { | |
1398 | fptr ++; | |
1399 | continue; | |
1400 | } | |
1401 | ||
1402 | /* | |
1403 | * Get the sub-field name... | |
1404 | */ | |
1405 | ||
1406 | for (ptr = temp; | |
1407 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1408 | ptr < (temp + sizeof(temp) - 1); | |
1409 | *ptr++ = *fptr++); | |
1410 | ||
1411 | *ptr = '\0'; | |
1412 | ||
1413 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1414 | ||
1415 | /* | |
1416 | * Skip trailing chars up to the '='... | |
1417 | */ | |
1418 | ||
1419 | while (_cups_isspace(*fptr)) | |
1420 | fptr ++; | |
1421 | ||
1422 | if (!*fptr) | |
1423 | break; | |
1424 | ||
1425 | if (*fptr != '=') | |
1426 | continue; | |
1427 | ||
1428 | /* | |
1429 | * Skip = and leading whitespace... | |
1430 | */ | |
1431 | ||
1432 | fptr ++; | |
1433 | ||
1434 | while (_cups_isspace(*fptr)) | |
1435 | fptr ++; | |
1436 | ||
1437 | if (*fptr == '\"') | |
1438 | { | |
1439 | /* | |
1440 | * Read quoted string... | |
1441 | */ | |
1442 | ||
1443 | for (ptr = value, fptr ++; | |
1444 | *fptr && *fptr != '\"' && ptr < end; | |
1445 | *ptr++ = *fptr++); | |
1446 | ||
1447 | *ptr = '\0'; | |
1448 | ||
1449 | while (*fptr && *fptr != '\"') | |
1450 | fptr ++; | |
1451 | ||
1452 | if (*fptr) | |
1453 | fptr ++; | |
1454 | } | |
1455 | else | |
1456 | { | |
1457 | /* | |
1458 | * Read unquoted string... | |
1459 | */ | |
1460 | ||
1461 | for (ptr = value; | |
1462 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1463 | *ptr++ = *fptr++); | |
1464 | ||
1465 | *ptr = '\0'; | |
1466 | ||
1467 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1468 | fptr ++; | |
1469 | } | |
1470 | ||
1471 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1472 | ||
1473 | /* | |
1474 | * See if this is the one... | |
1475 | */ | |
1476 | ||
1477 | if (!strcmp(name, temp)) | |
1478 | { | |
1479 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1480 | return (value); | |
1481 | } | |
1482 | } | |
1483 | ||
1484 | value[0] = '\0'; | |
1485 | ||
1486 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1487 | ||
1488 | return (NULL); | |
1489 | } | |
1490 | ||
1491 | ||
1492 | /* | |
1493 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1494 | */ | |
1495 | ||
1496 | http_version_t /* O - Version number */ | |
e6b1a6a9 | 1497 | httpGetVersion(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1498 | { |
a469f8a5 | 1499 | return (http ? http->version : HTTP_VERSION_1_0); |
a2326b5b MS |
1500 | } |
1501 | ||
1502 | ||
ef416fc2 | 1503 | /* |
1504 | * 'httpHead()' - Send a HEAD request to the server. | |
1505 | */ | |
1506 | ||
1507 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1508 | httpHead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1509 | const char *uri) /* I - URI for head */ |
1510 | { | |
e07d4801 | 1511 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1512 | return (http_send(http, HTTP_STATE_HEAD, uri)); |
ef416fc2 | 1513 | } |
1514 | ||
1515 | ||
1516 | /* | |
1517 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1518 | * default HTTP proxy (if any). | |
1519 | */ | |
1520 | ||
1521 | void | |
1522 | httpInitialize(void) | |
1523 | { | |
6d2f911b MS |
1524 | static int initialized = 0; /* Have we been called before? */ |
1525 | #ifdef WIN32 | |
1526 | WSADATA winsockdata; /* WinSock data */ | |
1527 | #endif /* WIN32 */ | |
ef416fc2 | 1528 | #ifdef HAVE_LIBSSL |
6d2f911b MS |
1529 | int i; /* Looping var */ |
1530 | unsigned char data[1024]; /* Seed data */ | |
ef416fc2 | 1531 | #endif /* HAVE_LIBSSL */ |
1532 | ||
ef416fc2 | 1533 | |
6d2f911b MS |
1534 | _cupsGlobalLock(); |
1535 | if (initialized) | |
1536 | { | |
1537 | _cupsGlobalUnlock(); | |
1538 | return; | |
1539 | } | |
1540 | ||
1541 | #ifdef WIN32 | |
c7017ecc | 1542 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1543 | |
fa73b229 | 1544 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1545 | /* |
1546 | * Ignore SIGPIPE signals... | |
1547 | */ | |
1548 | ||
fa73b229 | 1549 | # ifdef HAVE_SIGSET |
1550 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1551 | |
fa73b229 | 1552 | # elif defined(HAVE_SIGACTION) |
1553 | struct sigaction action; /* POSIX sigaction data */ | |
1554 | ||
1555 | ||
ef416fc2 | 1556 | memset(&action, 0, sizeof(action)); |
1557 | action.sa_handler = SIG_IGN; | |
1558 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1559 | |
fa73b229 | 1560 | # else |
ef416fc2 | 1561 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1562 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1563 | #endif /* WIN32 */ |
1564 | ||
2c85b752 MS |
1565 | # ifdef HAVE_SSL |
1566 | http_tls_initialize(); | |
1567 | # endif /* HAVE_SSL */ | |
6d2f911b MS |
1568 | |
1569 | initialized = 1; | |
1570 | _cupsGlobalUnlock(); | |
ef416fc2 | 1571 | } |
1572 | ||
1573 | ||
5ec1fd3d MS |
1574 | /* |
1575 | * 'httpIsChunked()' - Report whether a message body is chunked. | |
1576 | * | |
1577 | * This function returns non-zero if the message body is composed of | |
1578 | * variable-length chunks. | |
1579 | * | |
1580 | * @since CUPS 2.0@ | |
1581 | */ | |
1582 | ||
1583 | int /* O - 1 if chunked, 0 if not */ | |
1584 | httpIsChunked(http_t *http) /* I - HTTP connection */ | |
1585 | { | |
1586 | return (http ? http->data_encoding == HTTP_ENCODING_CHUNKED : 0); | |
1587 | } | |
1588 | ||
1589 | ||
1590 | /* | |
1591 | * 'httpIsEncrypted()' - Report whether a connection is encrypted. | |
1592 | * | |
1593 | * This function returns non-zero if the connection is currently encrypted. | |
1594 | * | |
1595 | * @since CUPS 2.0@ | |
1596 | */ | |
1597 | ||
1598 | int /* O - 1 if encrypted, 0 if not */ | |
1599 | httpIsEncrypted(http_t *http) /* I - HTTP connection */ | |
1600 | { | |
1601 | return (http ? http->tls != NULL : 0); | |
1602 | } | |
1603 | ||
1604 | ||
ef416fc2 | 1605 | /* |
1606 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1607 | */ | |
1608 | ||
1609 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1610 | httpOptions(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1611 | const char *uri) /* I - URI for options */ |
1612 | { | |
cb7f98ee | 1613 | return (http_send(http, HTTP_STATE_OPTIONS, uri)); |
ef416fc2 | 1614 | } |
1615 | ||
1616 | ||
6d2f911b | 1617 | /* |
a469f8a5 | 1618 | * 'httpPeek()' - Peek at data from a HTTP connection. |
6d2f911b MS |
1619 | * |
1620 | * This function copies available data from the given HTTP connection, reading | |
1621 | * a buffer as needed. The data is still available for reading using | |
1622 | * @link httpRead@ or @link httpRead2@. | |
1623 | * | |
1624 | * For non-blocking connections the usual timeouts apply. | |
a469f8a5 | 1625 | * |
9c0e8e5d | 1626 | * @since CUPS 1.7/OS X 10.9@ |
6d2f911b MS |
1627 | */ |
1628 | ||
1629 | ssize_t /* O - Number of bytes copied */ | |
e6b1a6a9 | 1630 | httpPeek(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
1631 | char *buffer, /* I - Buffer for data */ |
1632 | size_t length) /* I - Maximum number of bytes */ | |
6d2f911b MS |
1633 | { |
1634 | ssize_t bytes; /* Bytes read */ | |
1635 | char len[32]; /* Length string */ | |
1636 | ||
1637 | ||
a469f8a5 | 1638 | DEBUG_printf(("httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
6d2f911b MS |
1639 | http, buffer, CUPS_LLCAST length)); |
1640 | ||
1641 | if (http == NULL || buffer == NULL) | |
1642 | return (-1); | |
1643 | ||
1644 | http->activity = time(NULL); | |
1645 | http->error = 0; | |
1646 | ||
1647 | if (length <= 0) | |
1648 | return (0); | |
1649 | ||
a469f8a5 | 1650 | if (http->data_encoding == HTTP_ENCODING_CHUNKED && |
6d2f911b MS |
1651 | http->data_remaining <= 0) |
1652 | { | |
a469f8a5 | 1653 | DEBUG_puts("2httpPeek: Getting chunk length..."); |
6d2f911b MS |
1654 | |
1655 | if (httpGets(len, sizeof(len), http) == NULL) | |
1656 | { | |
a469f8a5 | 1657 | DEBUG_puts("1httpPeek: Could not get length!"); |
6d2f911b MS |
1658 | return (0); |
1659 | } | |
1660 | ||
db8b865d MS |
1661 | if (!len[0]) |
1662 | { | |
1663 | DEBUG_puts("1httpPeek: Blank chunk length, trying again..."); | |
1664 | if (!httpGets(len, sizeof(len), http)) | |
1665 | { | |
1666 | DEBUG_puts("1httpPeek: Could not get chunk length."); | |
1667 | return (0); | |
1668 | } | |
1669 | } | |
1670 | ||
6d2f911b | 1671 | http->data_remaining = strtoll(len, NULL, 16); |
db8b865d | 1672 | |
6d2f911b MS |
1673 | if (http->data_remaining < 0) |
1674 | { | |
a469f8a5 | 1675 | DEBUG_puts("1httpPeek: Negative chunk length!"); |
6d2f911b MS |
1676 | return (0); |
1677 | } | |
1678 | } | |
1679 | ||
a469f8a5 | 1680 | DEBUG_printf(("2httpPeek: data_remaining=" CUPS_LLFMT, |
6d2f911b MS |
1681 | CUPS_LLCAST http->data_remaining)); |
1682 | ||
0fa6c7fa | 1683 | if (http->data_remaining <= 0 && http->data_encoding != HTTP_ENCODING_FIELDS) |
6d2f911b MS |
1684 | { |
1685 | /* | |
1686 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1687 | * data, go idle... | |
1688 | */ | |
1689 | ||
c41769ff MS |
1690 | #ifdef HAVE_LIBZ |
1691 | if (http->coding) | |
1692 | http_content_coding_finish(http); | |
1693 | #endif /* HAVE_LIBZ */ | |
1694 | ||
0fa6c7fa MS |
1695 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
1696 | httpGets(len, sizeof(len), http); | |
1697 | ||
a469f8a5 | 1698 | if (http->state == HTTP_STATE_POST_RECV) |
6d2f911b MS |
1699 | http->state ++; |
1700 | else | |
cb7f98ee | 1701 | http->state = HTTP_STATE_STATUS; |
a469f8a5 MS |
1702 | |
1703 | DEBUG_printf(("1httpPeek: 0-length chunk, set state to %s.", | |
48bd1142 | 1704 | httpStateString(http->state))); |
6d2f911b MS |
1705 | |
1706 | /* | |
1707 | * Prevent future reads for this request... | |
1708 | */ | |
1709 | ||
a469f8a5 | 1710 | http->data_encoding = HTTP_ENCODING_FIELDS; |
6d2f911b MS |
1711 | |
1712 | return (0); | |
1713 | } | |
0fa6c7fa | 1714 | else if (length > (size_t)http->data_remaining) |
6d2f911b MS |
1715 | length = (size_t)http->data_remaining; |
1716 | ||
0fa6c7fa MS |
1717 | #ifdef HAVE_LIBZ |
1718 | if (http->used == 0 && | |
1719 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0)) | |
1720 | #else | |
6d2f911b | 1721 | if (http->used == 0) |
0fa6c7fa | 1722 | #endif /* HAVE_LIBZ */ |
6d2f911b MS |
1723 | { |
1724 | /* | |
1725 | * Buffer small reads for better performance... | |
1726 | */ | |
1727 | ||
3e7fe0ca MS |
1728 | ssize_t buflen; /* Length of read for buffer */ |
1729 | ||
f228370c MS |
1730 | if (!http->blocking) |
1731 | { | |
85dda01c | 1732 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1733 | { |
1734 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1735 | continue; | |
1736 | ||
1737 | return (0); | |
1738 | } | |
1739 | } | |
6d2f911b MS |
1740 | |
1741 | if (http->data_remaining > sizeof(http->buffer)) | |
3e7fe0ca | 1742 | buflen = sizeof(http->buffer); |
6d2f911b | 1743 | else |
3e7fe0ca MS |
1744 | buflen = http->data_remaining; |
1745 | ||
a469f8a5 | 1746 | DEBUG_printf(("2httpPeek: Reading %d bytes into buffer.", (int)buflen)); |
db8b865d | 1747 | bytes = http_read(http, http->buffer, buflen); |
3e7fe0ca | 1748 | |
a469f8a5 | 1749 | DEBUG_printf(("2httpPeek: Read " CUPS_LLFMT " bytes into buffer.", |
3e7fe0ca | 1750 | CUPS_LLCAST bytes)); |
db8b865d MS |
1751 | if (bytes > 0) |
1752 | { | |
3e7fe0ca | 1753 | #ifdef DEBUG |
db8b865d | 1754 | http_debug_hex("httpPeek", http->buffer, (int)bytes); |
3e7fe0ca MS |
1755 | #endif /* DEBUG */ |
1756 | ||
db8b865d MS |
1757 | http->used = bytes; |
1758 | } | |
6d2f911b MS |
1759 | } |
1760 | ||
c1420c87 MS |
1761 | #ifdef HAVE_LIBZ |
1762 | if (http->coding) | |
1763 | { | |
db8b865d | 1764 | # ifdef HAVE_INFLATECOPY |
c1420c87 | 1765 | int zerr; /* Decompressor error */ |
c1420c87 MS |
1766 | z_stream stream; /* Copy of decompressor stream */ |
1767 | ||
0fa6c7fa MS |
1768 | if (http->used > 0 && http->stream.avail_in < HTTP_MAX_BUFFER) |
1769 | { | |
1770 | size_t buflen = buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
1771 | /* Number of bytes to copy */ | |
1772 | ||
1773 | if (http->stream.avail_in > 0 && | |
1774 | http->stream.next_in > http->dbuffer) | |
1775 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
1776 | ||
1777 | http->stream.next_in = http->dbuffer; | |
1778 | ||
1779 | if (buflen > http->data_remaining) | |
1780 | buflen = http->data_remaining; | |
1781 | ||
1782 | if (buflen > http->used) | |
1783 | buflen = http->used; | |
1784 | ||
1785 | DEBUG_printf(("1httpPeek: Copying %d more bytes of data into " | |
1786 | "decompression buffer.", (int)buflen)); | |
1787 | ||
1788 | memcpy(http->dbuffer + http->stream.avail_in, http->buffer, buflen); | |
1789 | http->stream.avail_in += buflen; | |
1790 | http->used -= buflen; | |
1791 | http->data_remaining -= buflen; | |
1792 | ||
1793 | if (http->used > 0) | |
1794 | memmove(http->buffer, http->buffer + buflen, http->used); | |
1795 | } | |
c1420c87 MS |
1796 | |
1797 | DEBUG_printf(("2httpPeek: length=%d, avail_in=%d", (int)length, | |
0fa6c7fa | 1798 | (int)http->stream.avail_in)); |
c1420c87 MS |
1799 | |
1800 | if (inflateCopy(&stream, &(http->stream)) != Z_OK) | |
1801 | { | |
1802 | DEBUG_puts("2httpPeek: Unable to copy decompressor stream."); | |
1803 | http->error = ENOMEM; | |
1804 | return (-1); | |
1805 | } | |
1806 | ||
c1420c87 MS |
1807 | stream.next_out = (Bytef *)buffer; |
1808 | stream.avail_out = length; | |
1809 | ||
1810 | zerr = inflate(&stream, Z_SYNC_FLUSH); | |
1811 | inflateEnd(&stream); | |
1812 | ||
1813 | if (zerr < Z_OK) | |
1814 | { | |
1815 | DEBUG_printf(("2httpPeek: zerr=%d", zerr)); | |
0fa6c7fa MS |
1816 | #ifdef DEBUG |
1817 | http_debug_hex("2httpPeek", (char *)http->dbuffer, | |
1818 | http->stream.avail_in); | |
1819 | #endif /* DEBUG */ | |
1820 | ||
c1420c87 MS |
1821 | http->error = EIO; |
1822 | return (-1); | |
1823 | } | |
1824 | ||
1825 | bytes = length - http->stream.avail_out; | |
db8b865d MS |
1826 | |
1827 | # else | |
1828 | DEBUG_puts("2httpPeek: No inflateCopy on this platform, httpPeek does not " | |
1829 | "work with compressed streams."); | |
1830 | return (-1); | |
1831 | # endif /* HAVE_INFLATECOPY */ | |
c1420c87 MS |
1832 | } |
1833 | else | |
1834 | #endif /* HAVE_LIBZ */ | |
6d2f911b MS |
1835 | if (http->used > 0) |
1836 | { | |
1837 | if (length > (size_t)http->used) | |
1838 | length = (size_t)http->used; | |
1839 | ||
1840 | bytes = (ssize_t)length; | |
1841 | ||
a469f8a5 | 1842 | DEBUG_printf(("2httpPeek: grabbing %d bytes from input buffer...", |
6d2f911b MS |
1843 | (int)bytes)); |
1844 | ||
1845 | memcpy(buffer, http->buffer, length); | |
1846 | } | |
1847 | else | |
1848 | bytes = 0; | |
1849 | ||
1850 | if (bytes < 0) | |
1851 | { | |
1852 | #ifdef WIN32 | |
cc754834 MS |
1853 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1854 | bytes = 0; | |
1855 | else | |
1856 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1857 | #else |
1858 | if (errno == EINTR || errno == EAGAIN) | |
1859 | bytes = 0; | |
1860 | else | |
1861 | http->error = errno; | |
1862 | #endif /* WIN32 */ | |
1863 | } | |
1864 | else if (bytes == 0) | |
1865 | { | |
1866 | http->error = EPIPE; | |
1867 | return (0); | |
1868 | } | |
1869 | ||
6d2f911b MS |
1870 | return (bytes); |
1871 | } | |
1872 | ||
c1420c87 MS |
1873 | /* For OS X 10.8 and earlier */ |
1874 | ssize_t _httpPeek(http_t *http, char *buffer, size_t length) | |
1875 | { return (httpPeek(http, buffer, length)); } | |
1876 | ||
6d2f911b | 1877 | |
ef416fc2 | 1878 | /* |
1879 | * 'httpPost()' - Send a POST request to the server. | |
1880 | */ | |
1881 | ||
1882 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1883 | httpPost(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1884 | const char *uri) /* I - URI for post */ |
1885 | { | |
cb7f98ee | 1886 | return (http_send(http, HTTP_STATE_POST, uri)); |
ef416fc2 | 1887 | } |
1888 | ||
1889 | ||
1890 | /* | |
1891 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1892 | * |
1893 | * @private@ | |
ef416fc2 | 1894 | */ |
1895 | ||
1896 | int /* O - Number of bytes written */ | |
e6b1a6a9 | 1897 | httpPrintf(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1898 | const char *format, /* I - printf-style format string */ |
1899 | ...) /* I - Additional args as needed */ | |
1900 | { | |
1901 | int bytes; /* Number of bytes to write */ | |
1902 | char buf[16384]; /* Buffer for formatted string */ | |
1903 | va_list ap; /* Variable argument pointer */ | |
1904 | ||
1905 | ||
e07d4801 | 1906 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1907 | |
1908 | va_start(ap, format); | |
1909 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1910 | va_end(ap); | |
1911 | ||
a469f8a5 | 1912 | DEBUG_printf(("3httpPrintf: (%d bytes) %s", bytes, buf)); |
ef416fc2 | 1913 | |
a469f8a5 | 1914 | if (http->data_encoding == HTTP_ENCODING_FIELDS) |
d09495fa | 1915 | return (httpWrite2(http, buf, bytes)); |
1916 | else | |
ef416fc2 | 1917 | { |
d09495fa | 1918 | if (http->wused) |
1919 | { | |
e07d4801 | 1920 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1921 | |
d09495fa | 1922 | if (httpFlushWrite(http) < 0) |
1923 | return (-1); | |
1924 | } | |
ef416fc2 | 1925 | |
d09495fa | 1926 | return (http_write(http, buf, bytes)); |
1927 | } | |
ef416fc2 | 1928 | } |
1929 | ||
1930 | ||
1931 | /* | |
1932 | * 'httpPut()' - Send a PUT request to the server. | |
1933 | */ | |
1934 | ||
1935 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1936 | httpPut(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1937 | const char *uri) /* I - URI to put */ |
1938 | { | |
e07d4801 | 1939 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1940 | return (http_send(http, HTTP_STATE_PUT, uri)); |
ef416fc2 | 1941 | } |
1942 | ||
1943 | ||
1944 | /* | |
1945 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1946 | * |
1947 | * This function is deprecated. Use the httpRead2() function which can | |
1948 | * read more than 2GB of data. | |
1949 | * | |
1950 | * @deprecated@ | |
ef416fc2 | 1951 | */ |
1952 | ||
1953 | int /* O - Number of bytes read */ | |
e6b1a6a9 | 1954 | httpRead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1955 | char *buffer, /* I - Buffer for data */ |
1956 | int length) /* I - Maximum number of bytes */ | |
1957 | { | |
a4d04587 | 1958 | return ((int)httpRead2(http, buffer, length)); |
1959 | } | |
1960 | ||
1961 | ||
1962 | /* | |
1963 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1964 | * |
f3c17241 | 1965 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 1966 | */ |
1967 | ||
1968 | ssize_t /* O - Number of bytes read */ | |
e6b1a6a9 | 1969 | httpRead2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 1970 | char *buffer, /* I - Buffer for data */ |
1971 | size_t length) /* I - Maximum number of bytes */ | |
1972 | { | |
1973 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1974 | |
1975 | ||
db8b865d | 1976 | #ifdef HAVE_LIBZ |
a469f8a5 | 1977 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT |
0fa6c7fa | 1978 | ") coding=%d data_encoding=%d data_remaining=" CUPS_LLFMT, |
db8b865d MS |
1979 | http, buffer, CUPS_LLCAST length, |
1980 | http->coding, | |
0fa6c7fa | 1981 | http->data_encoding, CUPS_LLCAST http->data_remaining)); |
db8b865d MS |
1982 | #else |
1983 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT | |
1984 | ") data_encoding=%d data_remaining=" CUPS_LLFMT, | |
1985 | http, buffer, CUPS_LLCAST length, | |
1986 | http->data_encoding, CUPS_LLCAST http->data_remaining)); | |
1987 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 1988 | |
1989 | if (http == NULL || buffer == NULL) | |
1990 | return (-1); | |
1991 | ||
1992 | http->activity = time(NULL); | |
f11a948a | 1993 | http->error = 0; |
ef416fc2 | 1994 | |
1995 | if (length <= 0) | |
1996 | return (0); | |
1997 | ||
a469f8a5 | 1998 | #ifdef HAVE_LIBZ |
0fa6c7fa | 1999 | if (http->coding) |
ef416fc2 | 2000 | { |
0fa6c7fa | 2001 | do |
f228370c | 2002 | { |
0fa6c7fa | 2003 | if (http->stream.avail_in > 0) |
f228370c | 2004 | { |
0fa6c7fa | 2005 | int zerr; /* Decompressor error */ |
f228370c | 2006 | |
0fa6c7fa MS |
2007 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d", |
2008 | (int)http->stream.avail_in, (int)length)); | |
ef416fc2 | 2009 | |
0fa6c7fa MS |
2010 | http->stream.next_out = (Bytef *)buffer; |
2011 | http->stream.avail_out = length; | |
83e08001 | 2012 | |
0fa6c7fa | 2013 | if ((zerr = inflate(&(http->stream), Z_SYNC_FLUSH)) < Z_OK) |
83e08001 | 2014 | { |
0fa6c7fa | 2015 | DEBUG_printf(("2httpRead2: zerr=%d", zerr)); |
12f89d24 | 2016 | #ifdef DEBUG |
0fa6c7fa MS |
2017 | http_debug_hex("2httpRead2", (char *)http->dbuffer, |
2018 | http->stream.avail_in); | |
12f89d24 | 2019 | #endif /* DEBUG */ |
83e08001 | 2020 | |
0fa6c7fa MS |
2021 | http->error = EIO; |
2022 | return (-1); | |
2023 | } | |
a469f8a5 | 2024 | |
0fa6c7fa | 2025 | bytes = length - http->stream.avail_out; |
a469f8a5 | 2026 | |
0fa6c7fa MS |
2027 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d, bytes=%d", |
2028 | http->stream.avail_in, http->stream.avail_out, | |
2029 | (int)bytes)); | |
2030 | } | |
2031 | else | |
2032 | bytes = 0; | |
a469f8a5 | 2033 | |
0fa6c7fa MS |
2034 | if (bytes == 0) |
2035 | { | |
2036 | ssize_t buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
2037 | /* Additional bytes for buffer */ | |
a469f8a5 | 2038 | |
0fa6c7fa MS |
2039 | if (buflen > 0) |
2040 | { | |
2041 | if (http->stream.avail_in > 0 && | |
2042 | http->stream.next_in > http->dbuffer) | |
2043 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
2044 | ||
2045 | http->stream.next_in = http->dbuffer; | |
2046 | ||
2047 | DEBUG_printf(("1httpRead2: Reading up to %d more bytes of data into " | |
2048 | "decompression buffer.", (int)buflen)); | |
2049 | ||
2050 | if (http->data_remaining > 0) | |
2051 | { | |
2052 | if (buflen > http->data_remaining) | |
2053 | buflen = http->data_remaining; | |
2054 | ||
2055 | bytes = http_read_buffered(http, | |
2056 | (char *)http->dbuffer + | |
2057 | http->stream.avail_in, buflen); | |
2058 | } | |
2059 | else if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2060 | bytes = http_read_chunk(http, | |
2061 | (char *)http->dbuffer + | |
2062 | http->stream.avail_in, buflen); | |
2063 | else | |
2064 | bytes = 0; | |
2065 | ||
2066 | if (bytes < 0) | |
2067 | return (bytes); | |
2068 | else if (bytes == 0) | |
2069 | break; | |
2070 | ||
db8b865d MS |
2071 | DEBUG_printf(("1httpRead2: Adding " CUPS_LLFMT " bytes to " |
2072 | "decompression buffer.", CUPS_LLCAST bytes)); | |
2073 | ||
0fa6c7fa MS |
2074 | http->data_remaining -= bytes; |
2075 | http->stream.avail_in += bytes; | |
db8b865d | 2076 | |
cb7f98ee MS |
2077 | if (http->data_remaining <= 0 && |
2078 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2079 | { | |
2080 | /* | |
2081 | * Read the trailing blank line now... | |
2082 | */ | |
2083 | ||
2084 | char len[32]; /* Length string */ | |
2085 | ||
2086 | httpGets(len, sizeof(len), http); | |
2087 | } | |
2088 | ||
db8b865d | 2089 | bytes = 0; |
0fa6c7fa MS |
2090 | } |
2091 | else | |
2092 | return (0); | |
2093 | } | |
a469f8a5 | 2094 | } |
0fa6c7fa | 2095 | while (bytes == 0); |
a469f8a5 MS |
2096 | } |
2097 | else | |
2098 | #endif /* HAVE_LIBZ */ | |
0fa6c7fa | 2099 | if (http->data_remaining == 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 2100 | { |
0fa6c7fa | 2101 | if ((bytes = http_read_chunk(http, buffer, length)) > 0) |
cb7f98ee | 2102 | { |
0fa6c7fa | 2103 | http->data_remaining -= bytes; |
cb7f98ee MS |
2104 | |
2105 | if (http->data_remaining <= 0) | |
2106 | { | |
2107 | /* | |
2108 | * Read the trailing blank line now... | |
2109 | */ | |
2110 | ||
2111 | char len[32]; /* Length string */ | |
2112 | ||
2113 | httpGets(len, sizeof(len), http); | |
2114 | } | |
2115 | } | |
ef416fc2 | 2116 | } |
0fa6c7fa | 2117 | else if (http->data_remaining <= 0) |
ef416fc2 | 2118 | { |
0fa6c7fa MS |
2119 | /* |
2120 | * No more data to read... | |
2121 | */ | |
ef416fc2 | 2122 | |
0fa6c7fa | 2123 | return (0); |
ef416fc2 | 2124 | } |
ef416fc2 | 2125 | else |
2126 | { | |
0fa6c7fa MS |
2127 | DEBUG_printf(("1httpRead2: Reading up to %d bytes into buffer.", |
2128 | (int)length)); | |
ef416fc2 | 2129 | |
db8b865d MS |
2130 | if (length > (size_t)http->data_remaining) |
2131 | length = (size_t)http->data_remaining; | |
ef416fc2 | 2132 | |
0fa6c7fa | 2133 | if ((bytes = http_read_buffered(http, buffer, length)) > 0) |
cb7f98ee | 2134 | { |
0fa6c7fa | 2135 | http->data_remaining -= bytes; |
cb7f98ee MS |
2136 | |
2137 | if (http->data_remaining <= 0 && | |
2138 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2139 | { | |
2140 | /* | |
2141 | * Read the trailing blank line now... | |
2142 | */ | |
2143 | ||
2144 | char len[32]; /* Length string */ | |
2145 | ||
2146 | httpGets(len, sizeof(len), http); | |
2147 | } | |
2148 | } | |
ef416fc2 | 2149 | } |
2150 | ||
0fa6c7fa MS |
2151 | if ( |
2152 | #ifdef HAVE_LIBZ | |
2153 | (http->coding == _HTTP_CODING_IDENTITY || http->stream.avail_in == 0) && | |
2154 | #endif /* HAVE_LIBZ */ | |
2155 | ((http->data_remaining <= 0 && | |
2156 | http->data_encoding == HTTP_ENCODING_LENGTH) || | |
2157 | (http->data_encoding == HTTP_ENCODING_CHUNKED && bytes == 0))) | |
ef416fc2 | 2158 | { |
a469f8a5 | 2159 | #ifdef HAVE_LIBZ |
0fa6c7fa MS |
2160 | if (http->coding) |
2161 | http_content_coding_finish(http); | |
a469f8a5 MS |
2162 | #endif /* HAVE_LIBZ */ |
2163 | ||
0fa6c7fa MS |
2164 | if (http->state == HTTP_STATE_POST_RECV) |
2165 | http->state ++; | |
6961465f MS |
2166 | else if (http->state == HTTP_STATE_GET_SEND || |
2167 | http->state == HTTP_STATE_POST_SEND) | |
2168 | http->state = HTTP_STATE_WAITING; | |
0fa6c7fa | 2169 | else |
cb7f98ee | 2170 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 2171 | |
0fa6c7fa | 2172 | DEBUG_printf(("1httpRead2: End of content, set state to %s.", |
48bd1142 | 2173 | httpStateString(http->state))); |
ef416fc2 | 2174 | } |
2175 | ||
ef416fc2 | 2176 | return (bytes); |
2177 | } | |
2178 | ||
2179 | ||
ef416fc2 | 2180 | /* |
a469f8a5 MS |
2181 | * 'httpReadRequest()' - Read a HTTP request from a connection. |
2182 | * | |
9c0e8e5d | 2183 | * @since CUPS 1.7/OS X 10.9@ |
ef416fc2 | 2184 | */ |
2185 | ||
a469f8a5 MS |
2186 | http_state_t /* O - New state of connection */ |
2187 | httpReadRequest(http_t *http, /* I - HTTP connection */ | |
2188 | char *uri, /* I - URI buffer */ | |
2189 | size_t urilen) /* I - Size of URI buffer */ | |
dcb445bc | 2190 | { |
a469f8a5 MS |
2191 | char line[4096], /* HTTP request line */ |
2192 | *req_method, /* HTTP request method */ | |
2193 | *req_uri, /* HTTP request URI */ | |
2194 | *req_version; /* HTTP request version number string */ | |
dcb445bc MS |
2195 | |
2196 | ||
a469f8a5 MS |
2197 | /* |
2198 | * Range check input... | |
2199 | */ | |
ef416fc2 | 2200 | |
a469f8a5 MS |
2201 | DEBUG_printf(("httpReadRequest(http=%p, uri=%p, urilen=" CUPS_LLFMT ")", |
2202 | http, uri, CUPS_LLCAST urilen)); | |
ef416fc2 | 2203 | |
a469f8a5 MS |
2204 | if (uri) |
2205 | *uri = '\0'; | |
ef416fc2 | 2206 | |
a469f8a5 | 2207 | if (!http || !uri || urilen < 1) |
dcb445bc | 2208 | { |
a469f8a5 MS |
2209 | DEBUG_puts("1httpReadRequest: Bad arguments, returning HTTP_STATE_ERROR."); |
2210 | return (HTTP_STATE_ERROR); | |
dcb445bc | 2211 | } |
a469f8a5 | 2212 | else if (http->state != HTTP_STATE_WAITING) |
1ff0402e | 2213 | { |
a469f8a5 | 2214 | DEBUG_printf(("1httpReadRequest: Bad state %s, returning HTTP_STATE_ERROR.", |
48bd1142 | 2215 | httpStateString(http->state))); |
a469f8a5 | 2216 | return (HTTP_STATE_ERROR); |
1ff0402e | 2217 | } |
ef416fc2 | 2218 | |
2219 | /* | |
a469f8a5 | 2220 | * Reset state... |
ef416fc2 | 2221 | */ |
2222 | ||
a469f8a5 | 2223 | httpClearFields(http); |
ef416fc2 | 2224 | |
a469f8a5 MS |
2225 | http->activity = time(NULL); |
2226 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
2227 | http->data_remaining = 0; | |
2228 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2229 | http->status = HTTP_STATUS_OK; | |
2230 | http->version = HTTP_VERSION_1_1; | |
bd7854cb | 2231 | |
a29fd7dd | 2232 | /* |
a469f8a5 | 2233 | * Read a line from the socket... |
a29fd7dd MS |
2234 | */ |
2235 | ||
a469f8a5 MS |
2236 | if (!httpGets(line, sizeof(line), http)) |
2237 | { | |
2238 | DEBUG_puts("1httpReadRequest: Unable to read, returning HTTP_STATE_ERROR"); | |
2239 | return (HTTP_STATE_ERROR); | |
2240 | } | |
2241 | ||
2242 | if (!line[0]) | |
2243 | { | |
2244 | DEBUG_puts("1httpReadRequest: Blank line, returning HTTP_STATE_WAITING"); | |
2245 | return (HTTP_STATE_WAITING); | |
2246 | } | |
2247 | ||
2248 | DEBUG_printf(("1httpReadRequest: %s", line)); | |
2249 | ||
2250 | /* | |
2251 | * Parse it... | |
2252 | */ | |
2253 | ||
2254 | req_method = line; | |
2255 | req_uri = line; | |
2256 | ||
2257 | while (*req_uri && !isspace(*req_uri & 255)) | |
2258 | req_uri ++; | |
2259 | ||
2260 | if (!*req_uri) | |
2261 | { | |
2262 | DEBUG_puts("1httpReadRequest: No request URI."); | |
d21dc0ed | 2263 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request URI."), 1); |
a469f8a5 MS |
2264 | return (HTTP_STATE_ERROR); |
2265 | } | |
2266 | ||
2267 | *req_uri++ = '\0'; | |
2268 | ||
2269 | while (*req_uri && isspace(*req_uri & 255)) | |
2270 | req_uri ++; | |
2271 | ||
2272 | req_version = req_uri; | |
2273 | ||
2274 | while (*req_version && !isspace(*req_version & 255)) | |
2275 | req_version ++; | |
2276 | ||
2277 | if (!*req_version) | |
2278 | { | |
2279 | DEBUG_puts("1httpReadRequest: No request protocol version."); | |
d21dc0ed | 2280 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request protocol version."), 1); |
a469f8a5 MS |
2281 | return (HTTP_STATE_ERROR); |
2282 | } | |
2283 | ||
2284 | *req_version++ = '\0'; | |
2285 | ||
2286 | while (*req_version && isspace(*req_version & 255)) | |
2287 | req_version ++; | |
2288 | ||
2289 | /* | |
2290 | * Validate... | |
2291 | */ | |
2292 | ||
2293 | if (!strcmp(req_method, "OPTIONS")) | |
2294 | http->state = HTTP_STATE_OPTIONS; | |
2295 | else if (!strcmp(req_method, "GET")) | |
2296 | http->state = HTTP_STATE_GET; | |
2297 | else if (!strcmp(req_method, "HEAD")) | |
2298 | http->state = HTTP_STATE_HEAD; | |
2299 | else if (!strcmp(req_method, "POST")) | |
2300 | http->state = HTTP_STATE_POST; | |
2301 | else if (!strcmp(req_method, "PUT")) | |
2302 | http->state = HTTP_STATE_PUT; | |
2303 | else if (!strcmp(req_method, "DELETE")) | |
2304 | http->state = HTTP_STATE_DELETE; | |
2305 | else if (!strcmp(req_method, "TRACE")) | |
2306 | http->state = HTTP_STATE_TRACE; | |
2307 | else if (!strcmp(req_method, "CONNECT")) | |
2308 | http->state = HTTP_STATE_CONNECT; | |
2309 | else | |
2310 | { | |
2311 | DEBUG_printf(("1httpReadRequest: Unknown method \"%s\".", req_method)); | |
d21dc0ed | 2312 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request method."), 1); |
a469f8a5 MS |
2313 | return (HTTP_STATE_UNKNOWN_METHOD); |
2314 | } | |
2315 | ||
2316 | DEBUG_printf(("1httpReadRequest: Set state to %s.", | |
48bd1142 | 2317 | httpStateString(http->state))); |
a469f8a5 MS |
2318 | |
2319 | if (!strcmp(req_version, "HTTP/1.0")) | |
2320 | { | |
2321 | http->version = HTTP_VERSION_1_0; | |
2322 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2323 | } | |
2324 | else if (!strcmp(req_version, "HTTP/1.1")) | |
2325 | { | |
2326 | http->version = HTTP_VERSION_1_1; | |
2327 | http->keep_alive = HTTP_KEEPALIVE_ON; | |
2328 | } | |
2329 | else | |
2330 | { | |
2331 | DEBUG_printf(("1httpReadRequest: Unknown version \"%s\".", req_version)); | |
d21dc0ed | 2332 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request version."), 1); |
a469f8a5 MS |
2333 | return (HTTP_STATE_UNKNOWN_VERSION); |
2334 | } | |
2335 | ||
2336 | DEBUG_printf(("1httpReadRequest: URI is \"%s\".", req_uri)); | |
2337 | strlcpy(uri, req_uri, urilen); | |
2338 | ||
2339 | return (http->state); | |
2340 | } | |
2341 | ||
2342 | ||
2343 | /* | |
2344 | * 'httpReconnect()' - Reconnect to a HTTP server. | |
2345 | * | |
2346 | * This function is deprecated. Please use the @link httpReconnect2@ function | |
2347 | * instead. | |
2348 | * | |
2349 | * @deprecated@ | |
2350 | */ | |
2351 | ||
2352 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2353 | httpReconnect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
2354 | { |
2355 | DEBUG_printf(("httpReconnect(http=%p)", http)); | |
2356 | ||
2357 | return (httpReconnect2(http, 30000, NULL)); | |
2358 | } | |
2359 | ||
2360 | ||
2361 | /* | |
2362 | * 'httpReconnect2()' - Reconnect to a HTTP server with timeout and optional | |
2363 | * cancel. | |
2364 | */ | |
2365 | ||
2366 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2367 | httpReconnect2(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
2368 | int msec, /* I - Timeout in milliseconds */ |
2369 | int *cancel) /* I - Pointer to "cancel" variable */ | |
2370 | { | |
2371 | http_addrlist_t *addr; /* Connected address */ | |
2372 | #ifdef DEBUG | |
2373 | http_addrlist_t *current; /* Current address */ | |
2374 | char temp[256]; /* Temporary address string */ | |
2375 | #endif /* DEBUG */ | |
2376 | ||
2377 | ||
2378 | DEBUG_printf(("httpReconnect2(http=%p, msec=%d, cancel=%p)", http, msec, | |
2379 | cancel)); | |
2380 | ||
2381 | if (!http) | |
2382 | { | |
cb7f98ee | 2383 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
a469f8a5 MS |
2384 | return (-1); |
2385 | } | |
2386 | ||
2387 | #ifdef HAVE_SSL | |
2388 | if (http->tls) | |
2389 | { | |
2390 | DEBUG_puts("2httpReconnect2: Shutting down SSL/TLS..."); | |
2c85b752 | 2391 | http_tls_stop(http); |
a469f8a5 MS |
2392 | } |
2393 | #endif /* HAVE_SSL */ | |
2394 | ||
2395 | /* | |
2396 | * Close any previously open socket... | |
2397 | */ | |
2398 | ||
2399 | if (http->fd >= 0) | |
2400 | { | |
2401 | DEBUG_printf(("2httpReconnect2: Closing socket %d...", http->fd)); | |
2402 | ||
87e98392 | 2403 | httpAddrClose(NULL, http->fd); |
a469f8a5 MS |
2404 | |
2405 | http->fd = -1; | |
2406 | } | |
2407 | ||
2408 | /* | |
2409 | * Reset all state (except fields, which may be reused)... | |
2410 | */ | |
2411 | ||
2412 | http->state = HTTP_STATE_WAITING; | |
a469f8a5 MS |
2413 | http->version = HTTP_VERSION_1_1; |
2414 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
a29fd7dd | 2415 | memset(&http->_hostaddr, 0, sizeof(http->_hostaddr)); |
a469f8a5 | 2416 | http->data_encoding = HTTP_ENCODING_FIELDS; |
a29fd7dd MS |
2417 | http->_data_remaining = 0; |
2418 | http->used = 0; | |
a29fd7dd MS |
2419 | http->data_remaining = 0; |
2420 | http->hostaddr = NULL; | |
2421 | http->wused = 0; | |
2422 | ||
ef416fc2 | 2423 | /* |
2424 | * Connect to the server... | |
2425 | */ | |
2426 | ||
1ff0402e MS |
2427 | #ifdef DEBUG |
2428 | for (current = http->addrlist; current; current = current->next) | |
12f89d24 | 2429 | DEBUG_printf(("2httpReconnect2: Address %s:%d", |
1ff0402e | 2430 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
a469f8a5 | 2431 | httpAddrPort(&(current->addr)))); |
1ff0402e MS |
2432 | #endif /* DEBUG */ |
2433 | ||
dcb445bc MS |
2434 | if ((addr = httpAddrConnect2(http->addrlist, &(http->fd), msec, |
2435 | cancel)) == NULL) | |
ef416fc2 | 2436 | { |
2437 | /* | |
2438 | * Unable to connect... | |
2439 | */ | |
2440 | ||
2441 | #ifdef WIN32 | |
2442 | http->error = WSAGetLastError(); | |
2443 | #else | |
2444 | http->error = errno; | |
2445 | #endif /* WIN32 */ | |
cb7f98ee | 2446 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 2447 | |
12f89d24 | 2448 | DEBUG_printf(("1httpReconnect2: httpAddrConnect failed: %s", |
1ff0402e MS |
2449 | strerror(http->error))); |
2450 | ||
ef416fc2 | 2451 | return (-1); |
2452 | } | |
2453 | ||
12f89d24 | 2454 | DEBUG_printf(("2httpReconnect2: New socket=%d", http->fd)); |
1ff0402e | 2455 | |
85dda01c MS |
2456 | if (http->timeout_value > 0) |
2457 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2458 | |
ef416fc2 | 2459 | http->hostaddr = &(addr->addr); |
2460 | http->error = 0; | |
ef416fc2 | 2461 | |
2462 | #ifdef HAVE_SSL | |
cb7f98ee | 2463 | if (http->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 2464 | { |
2465 | /* | |
2466 | * Always do encryption via SSL. | |
2467 | */ | |
2468 | ||
2c85b752 | 2469 | if (http_tls_start(http) != 0) |
ef416fc2 | 2470 | { |
87e98392 | 2471 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2472 | |
2473 | return (-1); | |
2474 | } | |
2475 | } | |
cb7f98ee | 2476 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls_upgrade) |
2c85b752 | 2477 | return (http_tls_upgrade(http)); |
ef416fc2 | 2478 | #endif /* HAVE_SSL */ |
2479 | ||
12f89d24 | 2480 | DEBUG_printf(("1httpReconnect2: Connected to %s:%d...", |
1ff0402e | 2481 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
a469f8a5 | 2482 | httpAddrPort(http->hostaddr))); |
1ff0402e | 2483 | |
ef416fc2 | 2484 | return (0); |
2485 | } | |
2486 | ||
2487 | ||
355e94dc MS |
2488 | /* |
2489 | * 'httpSetAuthString()' - Set the current authorization string. | |
2490 | * | |
2491 | * This function just stores a copy of the current authorization string in | |
2492 | * the HTTP connection object. You must still call httpSetField() to set | |
2493 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2494 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2495 | * | |
f3c17241 | 2496 | * @since CUPS 1.3/OS X 10.5@ |
355e94dc MS |
2497 | */ |
2498 | ||
2499 | void | |
e6b1a6a9 | 2500 | httpSetAuthString(http_t *http, /* I - HTTP connection */ |
355e94dc MS |
2501 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2502 | const char *data) /* I - Auth data (NULL for none) */ | |
2503 | { | |
2504 | /* | |
2505 | * Range check input... | |
2506 | */ | |
2507 | ||
2508 | if (!http) | |
2509 | return; | |
2510 | ||
2511 | if (http->authstring && http->authstring != http->_authstring) | |
2512 | free(http->authstring); | |
2513 | ||
2514 | http->authstring = http->_authstring; | |
2515 | ||
2516 | if (scheme) | |
2517 | { | |
2518 | /* | |
2519 | * Set the current authorization string... | |
2520 | */ | |
2521 | ||
2522 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 2523 | char *temp; |
355e94dc MS |
2524 | |
2525 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
2526 | { |
2527 | if ((temp = malloc(len)) == NULL) | |
2528 | len = sizeof(http->_authstring); | |
2529 | else | |
2530 | http->authstring = temp; | |
2531 | } | |
355e94dc MS |
2532 | |
2533 | if (data) | |
2534 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2535 | else | |
2536 | strlcpy(http->authstring, scheme, len); | |
2537 | } | |
2538 | else | |
2539 | { | |
2540 | /* | |
2541 | * Clear the current authorization string... | |
2542 | */ | |
2543 | ||
2544 | http->_authstring[0] = '\0'; | |
2545 | } | |
2546 | } | |
2547 | ||
2548 | ||
7cf5915e MS |
2549 | /* |
2550 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2551 | * connection. | |
2552 | * | |
f3c17241 | 2553 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
2554 | */ |
2555 | ||
2556 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2557 | httpSetCredentials(http_t *http, /* I - HTTP connection */ |
7cf5915e MS |
2558 | cups_array_t *credentials) /* I - Array of credentials */ |
2559 | { | |
2560 | if (!http || cupsArrayCount(credentials) < 1) | |
2561 | return (-1); | |
2562 | ||
2563 | _httpFreeCredentials(http->tls_credentials); | |
2564 | ||
85dda01c | 2565 | http->tls_credentials = _httpCreateCredentials(credentials); |
7cf5915e MS |
2566 | |
2567 | return (http->tls_credentials ? 0 : -1); | |
2568 | } | |
2569 | ||
2570 | ||
ef416fc2 | 2571 | /* |
6d2f911b | 2572 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2573 | * |
f3c17241 | 2574 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 2575 | */ |
2576 | ||
2577 | void | |
2578 | httpSetCookie(http_t *http, /* I - Connection */ | |
2579 | const char *cookie) /* I - Cookie string */ | |
2580 | { | |
2581 | if (!http) | |
2582 | return; | |
2583 | ||
2584 | if (http->cookie) | |
2585 | free(http->cookie); | |
2586 | ||
2587 | if (cookie) | |
2588 | http->cookie = strdup(cookie); | |
2589 | else | |
2590 | http->cookie = NULL; | |
2591 | } | |
2592 | ||
2593 | ||
c1420c87 MS |
2594 | /* |
2595 | * 'httpSetDefaultField()' - Set the default value of an HTTP header. | |
2596 | * | |
6961465f MS |
2597 | * Currently only @code HTTP_FIELD_ACCEPT_ENCODING@, @code HTTP_FIELD_SERVER@, |
2598 | * and @code HTTP_FIELD_USER_AGENT@ can be set. | |
c1420c87 | 2599 | * |
9c0e8e5d | 2600 | * @since CUPS 1.7/OS X 10.9@ |
c1420c87 MS |
2601 | */ |
2602 | ||
2603 | void | |
e6b1a6a9 | 2604 | httpSetDefaultField(http_t *http, /* I - HTTP connection */ |
c1420c87 MS |
2605 | http_field_t field, /* I - Field index */ |
2606 | const char *value)/* I - Value */ | |
2607 | { | |
2608 | DEBUG_printf(("httpSetDefaultField(http=%p, field=%d(%s), value=\"%s\")", | |
2609 | http, field, http_fields[field], value)); | |
2610 | ||
2611 | if (!http) | |
2612 | return; | |
2613 | ||
2614 | switch (field) | |
2615 | { | |
2616 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2617 | if (http->default_accept_encoding) | |
2618 | _cupsStrFree(http->default_accept_encoding); | |
2619 | ||
2620 | http->default_accept_encoding = value ? _cupsStrAlloc(value) : NULL; | |
2621 | break; | |
2622 | ||
2623 | case HTTP_FIELD_SERVER : | |
2624 | if (http->default_server) | |
2625 | _cupsStrFree(http->default_server); | |
2626 | ||
2627 | http->default_server = value ? _cupsStrAlloc(value) : NULL; | |
2628 | break; | |
2629 | ||
2630 | case HTTP_FIELD_USER_AGENT : | |
2631 | if (http->default_user_agent) | |
2632 | _cupsStrFree(http->default_user_agent); | |
2633 | ||
2634 | http->default_user_agent = value ? _cupsStrAlloc(value) : NULL; | |
2635 | break; | |
2636 | ||
2637 | default : | |
2638 | DEBUG_puts("1httpSetDefaultField: Ignored."); | |
2639 | break; | |
2640 | } | |
2641 | } | |
2642 | ||
2643 | ||
b423cd4c | 2644 | /* |
2645 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2646 | * | |
a469f8a5 MS |
2647 | * Currently only @code HTTP_STATUS_CONTINUE@ is supported for the "expect" |
2648 | * argument. | |
b423cd4c | 2649 | * |
f3c17241 | 2650 | * @since CUPS 1.2/OS X 10.5@ |
b423cd4c | 2651 | */ |
2652 | ||
2653 | void | |
e6b1a6a9 | 2654 | httpSetExpect(http_t *http, /* I - HTTP connection */ |
a469f8a5 | 2655 | http_status_t expect) /* I - HTTP status to expect |
cb7f98ee | 2656 | (@code HTTP_STATUS_CONTINUE@) */ |
b423cd4c | 2657 | { |
cb7f98ee MS |
2658 | DEBUG_printf(("httpSetExpect(http=%p, expect=%d)", http, expect)); |
2659 | ||
b423cd4c | 2660 | if (http) |
2661 | http->expect = expect; | |
2662 | } | |
2663 | ||
2664 | ||
ef416fc2 | 2665 | /* |
2666 | * 'httpSetField()' - Set the value of an HTTP header. | |
2667 | */ | |
2668 | ||
2669 | void | |
e6b1a6a9 | 2670 | httpSetField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2671 | http_field_t field, /* I - Field index */ |
2672 | const char *value) /* I - Value */ | |
2673 | { | |
a469f8a5 MS |
2674 | DEBUG_printf(("httpSetField(http=%p, field=%d(%s), value=\"%s\")", http, |
2675 | field, http_fields[field], value)); | |
2676 | ||
ef416fc2 | 2677 | if (http == NULL || |
2678 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
a469f8a5 | 2679 | field >= HTTP_FIELD_MAX || |
ef416fc2 | 2680 | value == NULL) |
2681 | return; | |
2682 | ||
a469f8a5 MS |
2683 | switch (field) |
2684 | { | |
2685 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2686 | if (http->accept_encoding) | |
2687 | _cupsStrFree(http->accept_encoding); | |
2688 | ||
2689 | http->accept_encoding = _cupsStrAlloc(value); | |
2690 | break; | |
2691 | ||
2692 | case HTTP_FIELD_ALLOW : | |
2693 | if (http->allow) | |
2694 | _cupsStrFree(http->allow); | |
2695 | ||
2696 | http->allow = _cupsStrAlloc(value); | |
2697 | break; | |
2698 | ||
2699 | case HTTP_FIELD_SERVER : | |
2700 | if (http->server) | |
2701 | _cupsStrFree(http->server); | |
2702 | ||
2703 | http->server = _cupsStrAlloc(value); | |
2704 | break; | |
2705 | ||
2706 | default : | |
2707 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
2708 | break; | |
2709 | } | |
f7deaa1a | 2710 | |
f7deaa1a | 2711 | if (field == HTTP_FIELD_AUTHORIZATION) |
2712 | { | |
e07d4801 MS |
2713 | /* |
2714 | * Special case for Authorization: as its contents can be | |
2715 | * longer than HTTP_MAX_VALUE | |
2716 | */ | |
2717 | ||
f7deaa1a | 2718 | if (http->field_authorization) |
2719 | free(http->field_authorization); | |
2720 | ||
2721 | http->field_authorization = strdup(value); | |
2722 | } | |
e07d4801 MS |
2723 | else if (field == HTTP_FIELD_HOST) |
2724 | { | |
2725 | /* | |
f11a948a MS |
2726 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2727 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2728 | */ |
2729 | ||
178cb736 MS |
2730 | char *ptr = strchr(value, ':'); |
2731 | ||
2732 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2733 | { |
2734 | /* | |
2735 | * Bracket IPv6 numeric addresses... | |
2736 | * | |
2737 | * This is slightly inefficient (basically copying twice), but is an edge | |
2738 | * case and not worth optimizing... | |
2739 | */ | |
e07d4801 | 2740 | |
f11a948a MS |
2741 | snprintf(http->fields[HTTP_FIELD_HOST], |
2742 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2743 | } | |
2744 | else | |
e07d4801 | 2745 | { |
f11a948a MS |
2746 | /* |
2747 | * Check for a trailing dot on the hostname... | |
2748 | */ | |
2749 | ||
178cb736 | 2750 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2751 | |
2752 | if (*ptr) | |
2753 | { | |
2754 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2755 | |
f11a948a MS |
2756 | if (*ptr == '.') |
2757 | *ptr = '\0'; | |
2758 | } | |
e07d4801 MS |
2759 | } |
2760 | } | |
a469f8a5 MS |
2761 | #ifdef HAVE_LIBZ |
2762 | else if (field == HTTP_FIELD_CONTENT_ENCODING && | |
2763 | http->data_encoding != HTTP_ENCODING_FIELDS) | |
2764 | { | |
2765 | DEBUG_puts("1httpSetField: Calling http_content_coding_start."); | |
2766 | http_content_coding_start(http, value); | |
2767 | } | |
2768 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2769 | } |
2770 | ||
2771 | ||
e6b1a6a9 MS |
2772 | /* |
2773 | * 'httpSetKeepAlive()' - Set the current Keep-Alive state of a connection. | |
2774 | * | |
2775 | * @since CUPS 2.0@ | |
2776 | */ | |
2777 | ||
2778 | void | |
2779 | httpSetKeepAlive( | |
2780 | http_t *http, /* I - HTTP connection */ | |
2781 | http_keepalive_t keep_alive) /* I - New Keep-Alive value */ | |
2782 | { | |
2783 | if (http) | |
2784 | http->keep_alive = keep_alive; | |
2785 | } | |
2786 | ||
2787 | ||
ef416fc2 | 2788 | /* |
2789 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2790 | * | |
f3c17241 | 2791 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 2792 | */ |
2793 | ||
2794 | void | |
e6b1a6a9 | 2795 | httpSetLength(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2796 | size_t length) /* I - Length (0 for chunked) */ |
2797 | { | |
a469f8a5 MS |
2798 | DEBUG_printf(("httpSetLength(http=%p, length=" CUPS_LLFMT ")", http, |
2799 | CUPS_LLCAST length)); | |
2800 | ||
ef416fc2 | 2801 | if (!http) |
2802 | return; | |
2803 | ||
2804 | if (!length) | |
2805 | { | |
5a9febac MS |
2806 | strlcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked", |
2807 | HTTP_MAX_VALUE); | |
ef416fc2 | 2808 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; |
2809 | } | |
2810 | else | |
2811 | { | |
2812 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2813 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2814 | CUPS_LLFMT, CUPS_LLCAST length); | |
2815 | } | |
2816 | } | |
2817 | ||
2818 | ||
10d09e33 | 2819 | /* |
f228370c | 2820 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2821 | * |
2822 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2823 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2824 | * | |
f3c17241 | 2825 | * @since CUPS 1.5/OS X 10.7@ |
10d09e33 MS |
2826 | */ |
2827 | ||
2828 | void | |
f228370c | 2829 | httpSetTimeout( |
e6b1a6a9 | 2830 | http_t *http, /* I - HTTP connection */ |
f228370c | 2831 | double timeout, /* I - Number of seconds for timeout, |
10d09e33 | 2832 | must be greater than 0 */ |
f228370c MS |
2833 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2834 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2835 | { |
2836 | if (!http || timeout <= 0.0) | |
2837 | return; | |
2838 | ||
85dda01c MS |
2839 | http->timeout_cb = cb; |
2840 | http->timeout_data = user_data; | |
2841 | http->timeout_value = timeout; | |
10d09e33 MS |
2842 | |
2843 | if (http->fd >= 0) | |
85dda01c | 2844 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2845 | |
85dda01c | 2846 | http_set_wait(http); |
10d09e33 MS |
2847 | } |
2848 | ||
2849 | ||
5ec1fd3d MS |
2850 | /* |
2851 | * 'httpShutdown()' - Shutdown one side of an HTTP connection. | |
2852 | * | |
2853 | * @since CUPS 2.0@ | |
2854 | */ | |
2855 | ||
2856 | void | |
2857 | httpShutdown(http_t *http) /* I - HTTP connection */ | |
2858 | { | |
2859 | if (!http || http->fd < 0) | |
2860 | return; | |
2861 | ||
2862 | if (http->tls) | |
2863 | http_shutdown_ssl(http); | |
2864 | ||
2865 | shutdown(http->fd, SHUT_RD); | |
2866 | } | |
2867 | ||
2868 | ||
ef416fc2 | 2869 | /* |
2870 | * 'httpTrace()' - Send an TRACE request to the server. | |
2871 | */ | |
2872 | ||
2873 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2874 | httpTrace(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2875 | const char *uri) /* I - URI for trace */ |
2876 | { | |
cb7f98ee | 2877 | return (http_send(http, HTTP_STATE_TRACE, uri)); |
ef416fc2 | 2878 | } |
2879 | ||
2880 | ||
2881 | /* | |
e60ec91f MS |
2882 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2883 | * | |
2884 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2885 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2886 | */ |
2887 | ||
e60ec91f | 2888 | int /* O - 1 to continue, 0 to stop */ |
e6b1a6a9 | 2889 | _httpUpdate(http_t *http, /* I - HTTP connection */ |
e60ec91f | 2890 | http_status_t *status) /* O - Current HTTP status */ |
ef416fc2 | 2891 | { |
2892 | char line[32768], /* Line from connection... */ | |
2893 | *value; /* Pointer to value on line */ | |
2894 | http_field_t field; /* Field index */ | |
e60ec91f | 2895 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2896 | |
2897 | ||
e60ec91f | 2898 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
48bd1142 | 2899 | httpStateString(http->state))); |
ef416fc2 | 2900 | |
2901 | /* | |
e60ec91f | 2902 | * Grab a single line from the connection... |
ef416fc2 | 2903 | */ |
2904 | ||
e60ec91f | 2905 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2906 | { |
cb7f98ee | 2907 | *status = HTTP_STATUS_ERROR; |
e60ec91f | 2908 | return (0); |
ef416fc2 | 2909 | } |
2910 | ||
e60ec91f | 2911 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2912 | |
e60ec91f | 2913 | if (line[0] == '\0') |
ef416fc2 | 2914 | { |
e60ec91f MS |
2915 | /* |
2916 | * Blank line means the start of the data section (if any). Return | |
2917 | * the result code, too... | |
2918 | * | |
a469f8a5 MS |
2919 | * If we get status 100 (HTTP_STATUS_CONTINUE), then we *don't* change |
2920 | * states. Instead, we just return HTTP_STATUS_CONTINUE to the caller and | |
2921 | * keep on tryin'... | |
e60ec91f | 2922 | */ |
ef416fc2 | 2923 | |
a469f8a5 | 2924 | if (http->status == HTTP_STATUS_CONTINUE) |
ef416fc2 | 2925 | { |
e60ec91f MS |
2926 | *status = http->status; |
2927 | return (0); | |
2928 | } | |
ef416fc2 | 2929 | |
cb7f98ee | 2930 | if (http->status < HTTP_STATUS_BAD_REQUEST) |
e60ec91f | 2931 | http->digest_tries = 0; |
ef416fc2 | 2932 | |
2933 | #ifdef HAVE_SSL | |
cb7f98ee | 2934 | if (http->status == HTTP_STATUS_SWITCHING_PROTOCOLS && !http->tls) |
e60ec91f | 2935 | { |
2c85b752 | 2936 | if (http_tls_start(http) != 0) |
ef416fc2 | 2937 | { |
87e98392 | 2938 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2939 | |
cb7f98ee | 2940 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f | 2941 | return (0); |
ef416fc2 | 2942 | } |
e60ec91f | 2943 | |
a469f8a5 | 2944 | *status = HTTP_STATUS_CONTINUE; |
e60ec91f MS |
2945 | return (0); |
2946 | } | |
ef416fc2 | 2947 | #endif /* HAVE_SSL */ |
2948 | ||
a469f8a5 MS |
2949 | if (http_set_length(http) < 0) |
2950 | { | |
2951 | DEBUG_puts("1_httpUpdate: Bad Content-Length."); | |
2952 | http->error = EINVAL; | |
cb7f98ee | 2953 | http->status = *status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
2954 | return (0); |
2955 | } | |
ef416fc2 | 2956 | |
e60ec91f MS |
2957 | switch (http->state) |
2958 | { | |
c41769ff MS |
2959 | case HTTP_STATE_GET : |
2960 | case HTTP_STATE_POST : | |
a469f8a5 | 2961 | case HTTP_STATE_POST_RECV : |
c41769ff | 2962 | case HTTP_STATE_PUT : |
e60ec91f | 2963 | http->state ++; |
a469f8a5 MS |
2964 | |
2965 | DEBUG_printf(("1_httpUpdate: Set state to %s.", | |
48bd1142 | 2966 | httpStateString(http->state))); |
a469f8a5 | 2967 | |
c41769ff MS |
2968 | case HTTP_STATE_POST_SEND : |
2969 | case HTTP_STATE_HEAD : | |
e60ec91f | 2970 | break; |
ef416fc2 | 2971 | |
e60ec91f | 2972 | default : |
a469f8a5 MS |
2973 | http->state = HTTP_STATE_WAITING; |
2974 | ||
cb7f98ee | 2975 | DEBUG_puts("1_httpUpdate: Reset state to HTTP_STATE_WAITING."); |
e60ec91f | 2976 | break; |
ef416fc2 | 2977 | } |
e60ec91f | 2978 | |
a469f8a5 MS |
2979 | #ifdef HAVE_LIBZ |
2980 | DEBUG_puts("1_httpUpdate: Calling http_content_coding_start."); | |
2981 | http_content_coding_start(http, | |
2982 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
2983 | #endif /* HAVE_LIBZ */ | |
2984 | ||
e60ec91f MS |
2985 | *status = http->status; |
2986 | return (0); | |
2987 | } | |
2988 | else if (!strncmp(line, "HTTP/", 5)) | |
2989 | { | |
2990 | /* | |
2991 | * Got the beginning of a response... | |
2992 | */ | |
2993 | ||
2994 | int intstatus; /* Status value as an integer */ | |
2995 | ||
2996 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
2997 | { | |
cb7f98ee | 2998 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f MS |
2999 | return (0); |
3000 | } | |
3001 | ||
a469f8a5 MS |
3002 | httpClearFields(http); |
3003 | ||
e60ec91f MS |
3004 | http->version = (http_version_t)(major * 100 + minor); |
3005 | *status = http->status = (http_status_t)intstatus; | |
3006 | } | |
3007 | else if ((value = strchr(line, ':')) != NULL) | |
3008 | { | |
3009 | /* | |
3010 | * Got a value... | |
3011 | */ | |
3012 | ||
3013 | *value++ = '\0'; | |
3014 | while (_cups_isspace(*value)) | |
3015 | value ++; | |
3016 | ||
a469f8a5 MS |
3017 | DEBUG_printf(("1_httpUpdate: Header %s: %s", line, value)); |
3018 | ||
e60ec91f MS |
3019 | /* |
3020 | * Be tolerants of servers that send unknown attribute fields... | |
3021 | */ | |
3022 | ||
88f9aafc | 3023 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 3024 | { |
3025 | /* | |
e60ec91f | 3026 | * "Expect: 100-continue" or similar... |
ef416fc2 | 3027 | */ |
3028 | ||
e60ec91f | 3029 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 3030 | } |
88f9aafc | 3031 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 3032 | { |
3033 | /* | |
e60ec91f | 3034 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 3035 | */ |
3036 | ||
e60ec91f MS |
3037 | httpSetCookie(http, value); |
3038 | } | |
48bd1142 | 3039 | else if ((field = httpFieldValue(line)) != HTTP_FIELD_UNKNOWN) |
e60ec91f MS |
3040 | httpSetField(http, field, value); |
3041 | #ifdef DEBUG | |
3042 | else | |
3043 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
3044 | #endif /* DEBUG */ | |
3045 | } | |
3046 | else | |
3047 | { | |
3048 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
a469f8a5 | 3049 | http->error = EINVAL; |
cb7f98ee | 3050 | http->status = *status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3051 | return (0); |
3052 | } | |
ef416fc2 | 3053 | |
e60ec91f MS |
3054 | return (1); |
3055 | } | |
ef416fc2 | 3056 | |
ef416fc2 | 3057 | |
e60ec91f MS |
3058 | /* |
3059 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
3060 | */ | |
ef416fc2 | 3061 | |
e60ec91f | 3062 | http_status_t /* O - HTTP status */ |
e6b1a6a9 | 3063 | httpUpdate(http_t *http) /* I - HTTP connection */ |
e60ec91f MS |
3064 | { |
3065 | http_status_t status; /* Request status */ | |
3066 | ||
3067 | ||
3068 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
48bd1142 | 3069 | httpStateString(http->state))); |
e60ec91f MS |
3070 | |
3071 | /* | |
3072 | * Flush pending data, if any... | |
3073 | */ | |
3074 | ||
3075 | if (http->wused) | |
3076 | { | |
3077 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
3078 | ||
3079 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 3080 | return (HTTP_STATUS_ERROR); |
ef416fc2 | 3081 | } |
3082 | ||
e60ec91f MS |
3083 | /* |
3084 | * If we haven't issued any commands, then there is nothing to "update"... | |
3085 | */ | |
3086 | ||
a469f8a5 | 3087 | if (http->state == HTTP_STATE_WAITING) |
cb7f98ee | 3088 | return (HTTP_STATUS_CONTINUE); |
e60ec91f MS |
3089 | |
3090 | /* | |
3091 | * Grab all of the lines we can from the connection... | |
3092 | */ | |
3093 | ||
3094 | while (_httpUpdate(http, &status)); | |
3095 | ||
ef416fc2 | 3096 | /* |
3097 | * See if there was an error... | |
3098 | */ | |
3099 | ||
cb7f98ee | 3100 | if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE) |
e07d4801 MS |
3101 | { |
3102 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 3103 | return (http->status); |
e07d4801 | 3104 | } |
ef416fc2 | 3105 | |
3106 | if (http->error) | |
3107 | { | |
e07d4801 | 3108 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 3109 | strerror(http->error))); |
cb7f98ee MS |
3110 | http->status = HTTP_STATUS_ERROR; |
3111 | return (HTTP_STATUS_ERROR); | |
ef416fc2 | 3112 | } |
3113 | ||
3114 | /* | |
e60ec91f | 3115 | * Return the current status... |
ef416fc2 | 3116 | */ |
3117 | ||
e60ec91f | 3118 | return (status); |
ef416fc2 | 3119 | } |
3120 | ||
3121 | ||
38e73f87 MS |
3122 | /* |
3123 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
3124 | */ | |
3125 | ||
3126 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3127 | _httpWait(http_t *http, /* I - HTTP connection */ |
38e73f87 MS |
3128 | int msec, /* I - Milliseconds to wait */ |
3129 | int usessl) /* I - Use SSL context? */ | |
3130 | { | |
3131 | #ifdef HAVE_POLL | |
3132 | struct pollfd pfd; /* Polled file descriptor */ | |
3133 | #else | |
3134 | fd_set input_set; /* select() input set */ | |
3135 | struct timeval timeout; /* Timeout */ | |
3136 | #endif /* HAVE_POLL */ | |
3137 | int nfds; /* Result from select()/poll() */ | |
3138 | ||
3139 | ||
e07d4801 | 3140 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
3141 | |
3142 | if (http->fd < 0) | |
f8b3a85b MS |
3143 | { |
3144 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 3145 | return (0); |
f8b3a85b | 3146 | } |
38e73f87 MS |
3147 | |
3148 | /* | |
3149 | * Check the SSL/TLS buffers for data first... | |
3150 | */ | |
3151 | ||
3152 | #ifdef HAVE_SSL | |
2c85b752 | 3153 | if (http_tls_pending(http)) |
38e73f87 | 3154 | { |
2c85b752 MS |
3155 | DEBUG_puts("5_httpWait: Return 1 since there is pending TLS data."); |
3156 | return (1); | |
38e73f87 MS |
3157 | } |
3158 | #endif /* HAVE_SSL */ | |
3159 | ||
3160 | /* | |
3161 | * Then try doing a select() or poll() to poll the socket... | |
3162 | */ | |
3163 | ||
3164 | #ifdef HAVE_POLL | |
3165 | pfd.fd = http->fd; | |
3166 | pfd.events = POLLIN; | |
3167 | ||
5a9febac MS |
3168 | do |
3169 | { | |
3170 | nfds = poll(&pfd, 1, msec); | |
3171 | } | |
3172 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
3173 | |
3174 | #else | |
3175 | do | |
3176 | { | |
3177 | FD_ZERO(&input_set); | |
3178 | FD_SET(http->fd, &input_set); | |
3179 | ||
e07d4801 | 3180 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
3181 | |
3182 | if (msec >= 0) | |
3183 | { | |
3184 | timeout.tv_sec = msec / 1000; | |
3185 | timeout.tv_usec = (msec % 1000) * 1000; | |
3186 | ||
3187 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
3188 | } | |
3189 | else | |
3190 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
3191 | ||
e07d4801 | 3192 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
3193 | } |
3194 | # ifdef WIN32 | |
cc754834 MS |
3195 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
3196 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 3197 | # else |
e07d4801 | 3198 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
3199 | # endif /* WIN32 */ |
3200 | #endif /* HAVE_POLL */ | |
3201 | ||
f8b3a85b MS |
3202 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
3203 | errno)); | |
38e73f87 MS |
3204 | |
3205 | return (nfds > 0); | |
3206 | } | |
3207 | ||
3208 | ||
ef416fc2 | 3209 | /* |
3210 | * 'httpWait()' - Wait for data available on a connection. | |
3211 | * | |
f3c17241 | 3212 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 3213 | */ |
3214 | ||
3215 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3216 | httpWait(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3217 | int msec) /* I - Milliseconds to wait */ |
3218 | { | |
3219 | /* | |
3220 | * First see if there is data in the buffer... | |
3221 | */ | |
3222 | ||
22c9029b MS |
3223 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
3224 | ||
ef416fc2 | 3225 | if (http == NULL) |
3226 | return (0); | |
3227 | ||
3228 | if (http->used) | |
22c9029b MS |
3229 | { |
3230 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 3231 | return (1); |
22c9029b | 3232 | } |
ef416fc2 | 3233 | |
0fa6c7fa MS |
3234 | #ifdef HAVE_LIBZ |
3235 | if (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in > 0) | |
3236 | { | |
3237 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
3238 | return (1); | |
3239 | } | |
3240 | #endif /* HAVE_LIBZ */ | |
3241 | ||
8ca02f3c | 3242 | /* |
3243 | * Flush pending data, if any... | |
3244 | */ | |
3245 | ||
3246 | if (http->wused) | |
3247 | { | |
22c9029b MS |
3248 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3249 | ||
8ca02f3c | 3250 | if (httpFlushWrite(http) < 0) |
3251 | return (0); | |
3252 | } | |
3253 | ||
ef416fc2 | 3254 | /* |
3255 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3256 | */ | |
3257 | ||
38e73f87 | 3258 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3259 | } |
3260 | ||
3261 | ||
3262 | /* | |
3263 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3264 | * |
3265 | * This function is deprecated. Use the httpWrite2() function which can | |
3266 | * write more than 2GB of data. | |
3267 | * | |
3268 | * @deprecated@ | |
ef416fc2 | 3269 | */ |
ef55b745 | 3270 | |
ef416fc2 | 3271 | int /* O - Number of bytes written */ |
e6b1a6a9 | 3272 | httpWrite(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3273 | const char *buffer, /* I - Buffer for data */ |
3274 | int length) /* I - Number of bytes to write */ | |
3275 | { | |
a4d04587 | 3276 | return ((int)httpWrite2(http, buffer, length)); |
3277 | } | |
3278 | ||
3279 | ||
3280 | /* | |
3281 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3282 | * |
f3c17241 | 3283 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 3284 | */ |
ef55b745 | 3285 | |
a4d04587 | 3286 | ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 3287 | httpWrite2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 3288 | const char *buffer, /* I - Buffer for data */ |
3289 | size_t length) /* I - Number of bytes to write */ | |
3290 | { | |
3291 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3292 | |
3293 | ||
e07d4801 | 3294 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3295 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3296 | |
3297 | /* | |
3298 | * Range check input... | |
3299 | */ | |
3300 | ||
a469f8a5 MS |
3301 | if (!http || !buffer) |
3302 | { | |
3303 | DEBUG_puts("1httpWrite2: Returning -1 due to bad input."); | |
ef416fc2 | 3304 | return (-1); |
a469f8a5 | 3305 | } |
ef416fc2 | 3306 | |
3307 | /* | |
3308 | * Mark activity on the connection... | |
3309 | */ | |
3310 | ||
3311 | http->activity = time(NULL); | |
3312 | ||
3313 | /* | |
3314 | * Buffer small writes for better performance... | |
3315 | */ | |
3316 | ||
a469f8a5 MS |
3317 | #ifdef HAVE_LIBZ |
3318 | if (http->coding) | |
3319 | { | |
3320 | DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding)); | |
3321 | ||
3322 | if (length == 0) | |
3323 | { | |
3324 | http_content_coding_finish(http); | |
3325 | bytes = 0; | |
3326 | } | |
3327 | else | |
3328 | { | |
3329 | http->stream.next_in = (Bytef *)buffer; | |
3330 | http->stream.avail_in = length; | |
3331 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
3332 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
3333 | ||
3334 | while (deflate(&(http->stream), Z_NO_FLUSH) == Z_OK) | |
3335 | { | |
3336 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3337 | ||
3338 | if (http->stream.avail_out == 0) | |
3339 | { | |
3340 | if (httpFlushWrite(http) < 0) | |
3341 | { | |
3342 | DEBUG_puts("1httpWrite2: Unable to flush, returning -1."); | |
3343 | return (-1); | |
3344 | } | |
3345 | ||
3346 | http->stream.next_out = (Bytef *)http->wbuffer; | |
3347 | http->stream.avail_out = sizeof(http->wbuffer); | |
3348 | } | |
3349 | } | |
3350 | ||
3351 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3352 | bytes = length; | |
3353 | } | |
3354 | } | |
3355 | else | |
3356 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 3357 | if (length > 0) |
3358 | { | |
3359 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
3360 | { | |
e07d4801 MS |
3361 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3362 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3363 | |
3364 | httpFlushWrite(http); | |
3365 | } | |
3366 | ||
38e73f87 MS |
3367 | if ((length + http->wused) <= sizeof(http->wbuffer) && |
3368 | length < sizeof(http->wbuffer)) | |
ef416fc2 | 3369 | { |
3370 | /* | |
3371 | * Write to buffer... | |
3372 | */ | |
3373 | ||
e07d4801 | 3374 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3375 | CUPS_LLCAST length)); |
ef416fc2 | 3376 | |
3377 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3378 | http->wused += (int)length; |
3379 | bytes = (ssize_t)length; | |
ef416fc2 | 3380 | } |
3381 | else | |
3382 | { | |
3383 | /* | |
3384 | * Otherwise write the data directly... | |
3385 | */ | |
3386 | ||
e07d4801 | 3387 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3388 | CUPS_LLCAST length)); |
ef416fc2 | 3389 | |
a469f8a5 | 3390 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
b86bc4cf | 3391 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 3392 | else |
b86bc4cf | 3393 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 3394 | |
e07d4801 | 3395 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3396 | CUPS_LLCAST bytes)); |
ef416fc2 | 3397 | } |
3398 | ||
a469f8a5 | 3399 | if (http->data_encoding == HTTP_ENCODING_LENGTH) |
ef416fc2 | 3400 | http->data_remaining -= bytes; |
3401 | } | |
3402 | else | |
3403 | bytes = 0; | |
3404 | ||
3405 | /* | |
3406 | * Handle end-of-request processing... | |
3407 | */ | |
3408 | ||
a469f8a5 MS |
3409 | if ((http->data_encoding == HTTP_ENCODING_CHUNKED && length == 0) || |
3410 | (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0)) | |
ef416fc2 | 3411 | { |
3412 | /* | |
3413 | * Finished with the transfer; unless we are sending POST or PUT | |
3414 | * data, go idle... | |
3415 | */ | |
3416 | ||
db8b865d MS |
3417 | #ifdef HAVE_LIBZ |
3418 | if (http->coding) | |
3419 | http_content_coding_finish(http); | |
3420 | #endif /* HAVE_LIBZ */ | |
3421 | ||
ef416fc2 | 3422 | if (http->wused) |
a469f8a5 MS |
3423 | { |
3424 | if (httpFlushWrite(http) < 0) | |
3425 | return (-1); | |
3426 | } | |
ef416fc2 | 3427 | |
a469f8a5 | 3428 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 3429 | { |
3430 | /* | |
3431 | * Send a 0-length chunk at the end of the request... | |
3432 | */ | |
3433 | ||
3434 | http_write(http, "0\r\n\r\n", 5); | |
3435 | ||
3436 | /* | |
3437 | * Reset the data state... | |
3438 | */ | |
3439 | ||
a469f8a5 | 3440 | http->data_encoding = HTTP_ENCODING_FIELDS; |
ef416fc2 | 3441 | http->data_remaining = 0; |
3442 | } | |
a469f8a5 MS |
3443 | |
3444 | if (http->state == HTTP_STATE_POST_RECV) | |
3445 | http->state ++; | |
ad29aeab MS |
3446 | else if (http->state == HTTP_STATE_POST_SEND) |
3447 | http->state = HTTP_STATE_WAITING; | |
db8b865d | 3448 | else |
cb7f98ee | 3449 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 3450 | |
db8b865d | 3451 | DEBUG_printf(("2httpWrite2: Changed state to %s.", |
48bd1142 | 3452 | httpStateString(http->state))); |
ef416fc2 | 3453 | } |
3454 | ||
a469f8a5 MS |
3455 | DEBUG_printf(("1httpWrite2: Returning " CUPS_LLFMT ".", CUPS_LLCAST bytes)); |
3456 | ||
ef416fc2 | 3457 | return (bytes); |
3458 | } | |
3459 | ||
3460 | ||
a469f8a5 MS |
3461 | /* |
3462 | * 'httpWriteResponse()' - Write a HTTP response to a client connection. | |
3463 | * | |
9c0e8e5d | 3464 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
3465 | */ |
3466 | ||
3467 | int /* O - 0 on success, -1 on error */ | |
3468 | httpWriteResponse(http_t *http, /* I - HTTP connection */ | |
3469 | http_status_t status) /* I - Status code */ | |
3470 | { | |
3471 | http_encoding_t old_encoding; /* Old data_encoding value */ | |
3472 | off_t old_remaining; /* Old data_remaining value */ | |
3473 | ||
3474 | ||
3475 | /* | |
3476 | * Range check input... | |
3477 | */ | |
3478 | ||
3479 | DEBUG_printf(("httpWriteResponse(http=%p, status=%d)", http, status)); | |
3480 | ||
3481 | if (!http || status < HTTP_STATUS_CONTINUE) | |
3482 | { | |
3483 | DEBUG_puts("1httpWriteResponse: Bad input."); | |
3484 | return (-1); | |
3485 | } | |
3486 | ||
3487 | /* | |
3488 | * Set the various standard fields if they aren't already... | |
3489 | */ | |
3490 | ||
3491 | if (!http->fields[HTTP_FIELD_DATE][0]) | |
3492 | httpSetField(http, HTTP_FIELD_DATE, httpGetDateString(time(NULL))); | |
3493 | ||
cb7f98ee | 3494 | if (status >= HTTP_STATUS_BAD_REQUEST && http->keep_alive) |
a469f8a5 | 3495 | { |
5ec1fd3d | 3496 | http->keep_alive = HTTP_KEEPALIVE_OFF; |
a469f8a5 MS |
3497 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, ""); |
3498 | } | |
3499 | ||
3500 | if (http->version == HTTP_VERSION_1_1) | |
3501 | { | |
3502 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3503 | { | |
3504 | if (http->keep_alive) | |
3505 | httpSetField(http, HTTP_FIELD_CONNECTION, "Keep-Alive"); | |
3506 | else | |
3507 | httpSetField(http, HTTP_FIELD_CONNECTION, "close"); | |
3508 | } | |
3509 | ||
3510 | if (http->keep_alive && !http->fields[HTTP_FIELD_KEEP_ALIVE][0]) | |
3511 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, "timeout=10"); | |
3512 | } | |
3513 | ||
3514 | #ifdef HAVE_SSL | |
e200616a MS |
3515 | if (status == HTTP_STATUS_UPGRADE_REQUIRED || |
3516 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3517 | { |
3518 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3519 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3520 | ||
3521 | if (!http->fields[HTTP_FIELD_UPGRADE][0]) | |
3522 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); | |
e200616a MS |
3523 | |
3524 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) | |
3525 | httpSetField(http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 MS |
3526 | } |
3527 | #endif /* HAVE_SSL */ | |
3528 | ||
3529 | if (!http->server) | |
c1420c87 MS |
3530 | httpSetField(http, HTTP_FIELD_SERVER, |
3531 | http->default_server ? http->default_server : CUPS_MINIMAL); | |
a469f8a5 | 3532 | |
a469f8a5 MS |
3533 | /* |
3534 | * Set the Accept-Encoding field if it isn't already... | |
3535 | */ | |
3536 | ||
3537 | if (!http->accept_encoding) | |
c1420c87 MS |
3538 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, |
3539 | http->default_accept_encoding ? http->default_accept_encoding : | |
3540 | #ifdef HAVE_LIBZ | |
3541 | "gzip, deflate, identity"); | |
3542 | #else | |
3543 | "identity"); | |
a469f8a5 MS |
3544 | #endif /* HAVE_LIBZ */ |
3545 | ||
3546 | /* | |
3547 | * Send the response header... | |
3548 | */ | |
3549 | ||
3550 | old_encoding = http->data_encoding; | |
3551 | old_remaining = http->data_remaining; | |
3552 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
3553 | ||
3554 | if (httpPrintf(http, "HTTP/%d.%d %d %s\r\n", http->version / 100, | |
3555 | http->version % 100, (int)status, httpStatus(status)) < 0) | |
3556 | { | |
3557 | http->status = HTTP_STATUS_ERROR; | |
3558 | return (-1); | |
3559 | } | |
3560 | ||
3561 | if (status != HTTP_STATUS_CONTINUE) | |
3562 | { | |
3563 | /* | |
3564 | * 100 Continue doesn't have the rest of the response headers... | |
3565 | */ | |
3566 | ||
3567 | int i; /* Looping var */ | |
3568 | const char *value; /* Field value */ | |
3569 | ||
3570 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3571 | { | |
3572 | if ((value = httpGetField(http, i)) != NULL && *value) | |
3573 | { | |
3574 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) | |
3575 | { | |
3576 | http->status = HTTP_STATUS_ERROR; | |
3577 | return (-1); | |
3578 | } | |
3579 | } | |
3580 | } | |
3581 | ||
3582 | if (http->cookie) | |
3583 | { | |
e200616a MS |
3584 | if (httpPrintf(http, "Set-Cookie: %s path=/ httponly%s\r\n", |
3585 | http->cookie, http->tls ? " secure" : "") < 1) | |
a469f8a5 | 3586 | { |
cb7f98ee | 3587 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3588 | return (-1); |
3589 | } | |
3590 | } | |
3591 | } | |
3592 | ||
3593 | if (httpWrite2(http, "\r\n", 2) < 2) | |
3594 | { | |
cb7f98ee | 3595 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3596 | return (-1); |
3597 | } | |
3598 | ||
3599 | if (httpFlushWrite(http) < 0) | |
3600 | { | |
cb7f98ee | 3601 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3602 | return (-1); |
3603 | } | |
3604 | ||
e200616a MS |
3605 | if (status == HTTP_STATUS_CONTINUE || |
3606 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3607 | { |
3608 | /* | |
3609 | * Restore the old data_encoding and data_length values... | |
3610 | */ | |
3611 | ||
3612 | http->data_encoding = old_encoding; | |
3613 | http->data_remaining = old_remaining; | |
3614 | ||
3615 | if (old_remaining <= INT_MAX) | |
3616 | http->_data_remaining = (int)old_remaining; | |
3617 | else | |
3618 | http->_data_remaining = INT_MAX; | |
3619 | } | |
3620 | else if (http->state == HTTP_STATE_OPTIONS || | |
3621 | http->state == HTTP_STATE_HEAD || | |
3622 | http->state == HTTP_STATE_PUT || | |
3623 | http->state == HTTP_STATE_TRACE || | |
cb7f98ee MS |
3624 | http->state == HTTP_STATE_CONNECT || |
3625 | http->state == HTTP_STATE_STATUS) | |
a469f8a5 MS |
3626 | { |
3627 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
48bd1142 | 3628 | "was %s.", httpStateString(http->state))); |
a469f8a5 MS |
3629 | http->state = HTTP_STATE_WAITING; |
3630 | } | |
3631 | else | |
3632 | { | |
3633 | /* | |
3634 | * Force data_encoding and data_length to be set according to the response | |
3635 | * headers... | |
3636 | */ | |
3637 | ||
3638 | http_set_length(http); | |
3639 | ||
db8b865d | 3640 | #ifdef HAVE_LIBZ |
a469f8a5 MS |
3641 | /* |
3642 | * Then start any content encoding... | |
3643 | */ | |
3644 | ||
3645 | DEBUG_puts("1httpWriteResponse: Calling http_content_coding_start."); | |
3646 | http_content_coding_start(http, | |
3647 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
db8b865d | 3648 | #endif /* HAVE_LIBZ */ |
a469f8a5 MS |
3649 | } |
3650 | ||
3651 | return (0); | |
3652 | } | |
3653 | ||
3654 | ||
2c85b752 | 3655 | #ifdef HAVE_LIBZ |
411affcf | 3656 | /* |
2c85b752 | 3657 | * 'http_content_coding_finish()' - Finish doing any content encoding. |
411affcf | 3658 | */ |
3659 | ||
2c85b752 MS |
3660 | static void |
3661 | http_content_coding_finish( | |
3662 | http_t *http) /* I - HTTP connection */ | |
a469f8a5 MS |
3663 | { |
3664 | int zerr; /* Compression status */ | |
3665 | ||
3666 | ||
3667 | switch (http->coding) | |
3668 | { | |
3669 | case _HTTP_CODING_DEFLATE : | |
3670 | case _HTTP_CODING_GZIP : | |
3671 | do | |
3672 | { | |
3673 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
3674 | http->stream.avail_out = sizeof(http->wbuffer) - http->wused; | |
3675 | ||
3676 | zerr = deflate(&(http->stream), Z_FINISH); | |
3677 | ||
3678 | http->wused = sizeof(http->wbuffer) - http->stream.avail_out; | |
3679 | if (http->wused == sizeof(http->wbuffer)) | |
3680 | httpFlushWrite(http); | |
3681 | } | |
3682 | while (zerr == Z_OK); | |
3683 | ||
3684 | deflateEnd(&(http->stream)); | |
3685 | ||
3686 | if (http->wused) | |
3687 | httpFlushWrite(http); | |
3688 | break; | |
3689 | ||
3690 | case _HTTP_CODING_INFLATE : | |
3691 | case _HTTP_CODING_GUNZIP : | |
3692 | inflateEnd(&(http->stream)); | |
0fa6c7fa MS |
3693 | free(http->dbuffer); |
3694 | http->dbuffer = NULL; | |
a469f8a5 MS |
3695 | break; |
3696 | ||
3697 | default : | |
3698 | break; | |
3699 | } | |
3700 | ||
3701 | http->coding = _HTTP_CODING_IDENTITY; | |
3702 | } | |
3703 | ||
3704 | ||
3705 | /* | |
3706 | * 'http_content_coding_start()' - Start doing content encoding. | |
3707 | */ | |
3708 | ||
3709 | static void | |
3710 | http_content_coding_start( | |
3711 | http_t *http, /* I - HTTP connection */ | |
3712 | const char *value) /* I - Value of Content-Encoding */ | |
3713 | { | |
3714 | int zerr; /* Error/status */ | |
3715 | _http_coding_t coding; /* Content coding value */ | |
3716 | ||
3717 | ||
3718 | DEBUG_printf(("http_content_coding_start(http=%p, value=\"%s\")", http, | |
3719 | value)); | |
3720 | ||
3721 | if (http->coding != _HTTP_CODING_IDENTITY) | |
3722 | { | |
3723 | DEBUG_printf(("1http_content_coding_start: http->coding already %d.", | |
3724 | http->coding)); | |
3725 | return; | |
3726 | } | |
3727 | else if (!strcmp(value, "x-gzip") || !strcmp(value, "gzip")) | |
3728 | { | |
cb7f98ee MS |
3729 | if (http->state == HTTP_STATE_GET_SEND || |
3730 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3731 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_GZIP : |
3732 | _HTTP_CODING_GUNZIP; | |
cb7f98ee MS |
3733 | else if (http->state == HTTP_STATE_POST_RECV || |
3734 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3735 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_GZIP : |
3736 | _HTTP_CODING_GUNZIP; | |
3737 | else | |
3738 | { | |
3739 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3740 | return; | |
3741 | } | |
3742 | } | |
3743 | else if (!strcmp(value, "x-deflate") || !strcmp(value, "deflate")) | |
3744 | { | |
cb7f98ee MS |
3745 | if (http->state == HTTP_STATE_GET_SEND || |
3746 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3747 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_DEFLATE : |
3748 | _HTTP_CODING_INFLATE; | |
cb7f98ee MS |
3749 | else if (http->state == HTTP_STATE_POST_RECV || |
3750 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3751 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_DEFLATE : |
3752 | _HTTP_CODING_INFLATE; | |
3753 | else | |
3754 | { | |
3755 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3756 | return; | |
3757 | } | |
3758 | } | |
3759 | else | |
3760 | { | |
3761 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3762 | return; | |
3763 | } | |
3764 | ||
3765 | memset(&(http->stream), 0, sizeof(http->stream)); | |
3766 | ||
3767 | switch (coding) | |
3768 | { | |
3769 | case _HTTP_CODING_DEFLATE : | |
3770 | case _HTTP_CODING_GZIP : | |
3771 | if (http->wused) | |
3772 | httpFlushWrite(http); | |
3773 | ||
db8b865d MS |
3774 | /* |
3775 | * Window size for compression is 11 bits - optimal based on PWG Raster | |
3776 | * sample files on pwg.org. -11 is raw deflate, 27 is gzip, per ZLIB | |
3777 | * documentation. | |
3778 | */ | |
3779 | ||
a469f8a5 MS |
3780 | if ((zerr = deflateInit2(&(http->stream), Z_DEFAULT_COMPRESSION, |
3781 | Z_DEFLATED, | |
db8b865d | 3782 | coding == _HTTP_CODING_DEFLATE ? -11 : 27, 7, |
a469f8a5 MS |
3783 | Z_DEFAULT_STRATEGY)) < Z_OK) |
3784 | { | |
cb7f98ee | 3785 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3786 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3787 | return; | |
3788 | } | |
3789 | break; | |
3790 | ||
3791 | case _HTTP_CODING_INFLATE : | |
3792 | case _HTTP_CODING_GUNZIP : | |
0fa6c7fa | 3793 | if ((http->dbuffer = malloc(HTTP_MAX_BUFFER)) == NULL) |
a469f8a5 | 3794 | { |
cb7f98ee | 3795 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa | 3796 | http->error = errno; |
a469f8a5 MS |
3797 | return; |
3798 | } | |
0fa6c7fa | 3799 | |
db8b865d MS |
3800 | /* |
3801 | * Window size for decompression is up to 15 bits (maximum supported). | |
3802 | * -15 is raw inflate, 31 is gunzip, per ZLIB documentation. | |
3803 | */ | |
3804 | ||
0fa6c7fa | 3805 | if ((zerr = inflateInit2(&(http->stream), |
db8b865d | 3806 | coding == _HTTP_CODING_INFLATE ? -15 : 31)) |
0fa6c7fa MS |
3807 | < Z_OK) |
3808 | { | |
3809 | free(http->dbuffer); | |
3810 | http->dbuffer = NULL; | |
cb7f98ee | 3811 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa MS |
3812 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3813 | return; | |
3814 | } | |
3815 | ||
3816 | http->stream.avail_in = 0; | |
3817 | http->stream.next_in = http->dbuffer; | |
a469f8a5 MS |
3818 | break; |
3819 | ||
3820 | default : | |
3821 | break; | |
3822 | } | |
3823 | ||
3824 | http->coding = coding; | |
3825 | ||
3826 | DEBUG_printf(("1http_content_coding_start: http->coding now %d.", | |
3827 | http->coding)); | |
3828 | } | |
3829 | #endif /* HAVE_LIBZ */ | |
3830 | ||
3831 | ||
db8b865d MS |
3832 | /* |
3833 | * 'http_create()' - Create an unconnected HTTP connection. | |
3834 | */ | |
3835 | ||
3836 | static http_t * /* O - HTTP connection */ | |
3837 | http_create( | |
3838 | const char *host, /* I - Hostname */ | |
3839 | int port, /* I - Port number */ | |
3840 | http_addrlist_t *addrlist, /* I - Address list or NULL */ | |
3841 | int family, /* I - Address family or AF_UNSPEC */ | |
3842 | http_encryption_t encryption, /* I - Encryption to use */ | |
3843 | int blocking, /* I - 1 for blocking mode */ | |
3844 | _http_mode_t mode) /* I - _HTTP_MODE_CLIENT or _SERVER */ | |
3845 | { | |
3846 | http_t *http; /* New HTTP connection */ | |
3847 | char service[255]; /* Service name */ | |
3848 | http_addrlist_t *myaddrlist = NULL; /* My address list */ | |
3849 | ||
3850 | ||
3851 | DEBUG_printf(("4http_create(host=\"%s\", port=%d, addrlist=%p, family=%d, " | |
3852 | "encryption=%d, blocking=%d, mode=%d)", host, port, addrlist, | |
3853 | family, encryption, blocking, mode)); | |
3854 | ||
3855 | if (!host && mode == _HTTP_MODE_CLIENT) | |
3856 | return (NULL); | |
3857 | ||
3858 | httpInitialize(); | |
3859 | ||
3860 | /* | |
3861 | * Lookup the host... | |
3862 | */ | |
3863 | ||
3864 | if (addrlist) | |
3865 | { | |
3866 | myaddrlist = httpAddrCopyList(addrlist); | |
3867 | } | |
3868 | else | |
3869 | { | |
3870 | snprintf(service, sizeof(service), "%d", port); | |
3871 | ||
3872 | myaddrlist = httpAddrGetList(host, family, service); | |
3873 | } | |
3874 | ||
3875 | if (!myaddrlist) | |
3876 | return (NULL); | |
3877 | ||
3878 | /* | |
3879 | * Allocate memory for the structure... | |
3880 | */ | |
3881 | ||
3882 | if ((http = calloc(sizeof(http_t), 1)) == NULL) | |
3883 | { | |
cb7f98ee | 3884 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); |
db8b865d MS |
3885 | httpAddrFreeList(addrlist); |
3886 | return (NULL); | |
3887 | } | |
3888 | ||
3889 | /* | |
3890 | * Initialize the HTTP data... | |
3891 | */ | |
3892 | ||
3893 | http->mode = mode; | |
3894 | http->activity = time(NULL); | |
3895 | http->addrlist = myaddrlist; | |
3896 | http->blocking = blocking; | |
3897 | http->fd = -1; | |
3898 | #ifdef HAVE_GSSAPI | |
3899 | http->gssctx = GSS_C_NO_CONTEXT; | |
3900 | http->gssname = GSS_C_NO_NAME; | |
3901 | #endif /* HAVE_GSSAPI */ | |
cb7f98ee | 3902 | http->status = HTTP_STATUS_CONTINUE; |
db8b865d MS |
3903 | http->version = HTTP_VERSION_1_1; |
3904 | ||
3905 | if (host) | |
3906 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
3907 | ||
3908 | if (port == 443) /* Always use encryption for https */ | |
3909 | http->encryption = HTTP_ENCRYPTION_ALWAYS; | |
3910 | else | |
3911 | http->encryption = encryption; | |
3912 | ||
3913 | http_set_wait(http); | |
3914 | ||
3915 | /* | |
3916 | * Return the new structure... | |
3917 | */ | |
3918 | ||
3919 | return (http); | |
3920 | } | |
3921 | ||
3922 | /* For OS X 10.8 and earlier */ | |
3923 | http_t *_httpCreate(const char *host, int port, http_addrlist_t *addrlist, | |
3924 | http_encryption_t encryption, int family) | |
3925 | { return (http_create(host, port, addrlist, family, encryption, 1, | |
3926 | _HTTP_MODE_CLIENT)); } | |
3927 | ||
3928 | ||
ae71f5de MS |
3929 | #ifdef DEBUG |
3930 | /* | |
3931 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
3932 | */ | |
3933 | ||
3934 | static void | |
3935 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
3936 | const char *buffer, /* I - Buffer to dump */ | |
3937 | int bytes) /* I - Bytes to dump */ | |
3938 | { | |
3939 | int i, j, /* Looping vars */ | |
3940 | ch; /* Current character */ | |
3941 | char line[255], /* Line buffer */ | |
3942 | *start, /* Start of line after prefix */ | |
3943 | *ptr; /* Pointer into line */ | |
3944 | ||
3945 | ||
f11a948a | 3946 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
3947 | return; |
3948 | ||
83e08001 | 3949 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 3950 | |
f11a948a | 3951 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
3952 | start = line + strlen(line); |
3953 | ||
3954 | for (i = 0; i < bytes; i += 16) | |
3955 | { | |
3956 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
3957 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
3958 | ||
3959 | while (j < 16) | |
3960 | { | |
5a9febac | 3961 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3962 | ptr += 2; |
3963 | j ++; | |
3964 | } | |
3965 | ||
5a9febac | 3966 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3967 | ptr += 2; |
3968 | ||
3969 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
3970 | { | |
3971 | ch = buffer[i + j] & 255; | |
3972 | ||
3973 | if (ch < ' ' || ch >= 127) | |
3974 | ch = '.'; | |
3975 | ||
3976 | *ptr++ = ch; | |
3977 | } | |
3978 | ||
3979 | *ptr = '\0'; | |
3980 | DEBUG_puts(line); | |
3981 | } | |
3982 | } | |
3983 | #endif /* DEBUG */ | |
3984 | ||
3985 | ||
0fa6c7fa MS |
3986 | /* |
3987 | * 'http_read()' - Read a buffer from a HTTP connection. | |
3988 | * | |
3989 | * This function does the low-level read from the socket, retrying and timing | |
3990 | * out as needed. | |
3991 | */ | |
3992 | ||
3993 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 3994 | http_read(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
3995 | char *buffer, /* I - Buffer */ |
3996 | size_t length) /* I - Maximum bytes to read */ | |
3997 | { | |
3998 | ssize_t bytes; /* Bytes read */ | |
3999 | ||
4000 | ||
4001 | DEBUG_printf(("http_read(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, | |
4002 | buffer, CUPS_LLCAST length)); | |
4003 | ||
4004 | if (!http->blocking) | |
4005 | { | |
4006 | while (!httpWait(http, http->wait_value)) | |
4007 | { | |
4008 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4009 | continue; | |
4010 | ||
4011 | DEBUG_puts("2http_read: Timeout."); | |
4012 | return (0); | |
4013 | } | |
4014 | } | |
4015 | ||
4016 | DEBUG_printf(("2http_read: Reading %d bytes into buffer.", (int)length)); | |
4017 | ||
4018 | do | |
4019 | { | |
4020 | #ifdef HAVE_SSL | |
4021 | if (http->tls) | |
2c85b752 | 4022 | bytes = http_tls_read(http, buffer, length); |
0fa6c7fa MS |
4023 | else |
4024 | #endif /* HAVE_SSL */ | |
4025 | bytes = recv(http->fd, buffer, length, 0); | |
4026 | ||
4027 | if (bytes < 0) | |
4028 | { | |
4029 | #ifdef WIN32 | |
4030 | if (WSAGetLastError() != WSAEINTR) | |
4031 | { | |
4032 | http->error = WSAGetLastError(); | |
4033 | return (-1); | |
4034 | } | |
4035 | else if (WSAGetLastError() == WSAEWOULDBLOCK) | |
4036 | { | |
4037 | if (!http->timeout_cb || | |
4038 | !(*http->timeout_cb)(http, http->timeout_data)) | |
4039 | { | |
4040 | http->error = WSAEWOULDBLOCK; | |
4041 | return (-1); | |
4042 | } | |
4043 | } | |
4044 | #else | |
4045 | DEBUG_printf(("2http_read: %s", strerror(errno))); | |
4046 | ||
4047 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
4048 | { | |
4049 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
4050 | { | |
4051 | http->error = errno; | |
4052 | return (-1); | |
4053 | } | |
4054 | else if (!http->timeout_cb && errno != EAGAIN) | |
4055 | { | |
4056 | http->error = errno; | |
4057 | return (-1); | |
4058 | } | |
4059 | } | |
4060 | else if (errno != EINTR) | |
4061 | { | |
4062 | http->error = errno; | |
4063 | return (-1); | |
4064 | } | |
4065 | #endif /* WIN32 */ | |
4066 | } | |
4067 | } | |
4068 | while (bytes < 0); | |
4069 | ||
4070 | DEBUG_printf(("2http_read: Read " CUPS_LLFMT " bytes into buffer.", | |
4071 | CUPS_LLCAST bytes)); | |
4072 | #ifdef DEBUG | |
4073 | if (bytes > 0) | |
6961465f | 4074 | http_debug_hex("http_read", buffer, (int)bytes); |
0fa6c7fa MS |
4075 | #endif /* DEBUG */ |
4076 | ||
4077 | if (bytes < 0) | |
4078 | { | |
4079 | #ifdef WIN32 | |
4080 | if (WSAGetLastError() == WSAEINTR) | |
4081 | bytes = 0; | |
4082 | else | |
4083 | http->error = WSAGetLastError(); | |
4084 | #else | |
4085 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) | |
4086 | bytes = 0; | |
4087 | else | |
4088 | http->error = errno; | |
4089 | #endif /* WIN32 */ | |
4090 | } | |
4091 | else if (bytes == 0) | |
4092 | { | |
4093 | http->error = EPIPE; | |
4094 | return (0); | |
4095 | } | |
4096 | ||
4097 | return (bytes); | |
4098 | } | |
4099 | ||
4100 | ||
4101 | /* | |
4102 | * 'http_read_buffered()' - Do a buffered read from a HTTP connection. | |
4103 | * | |
4104 | * This function reads data from the HTTP buffer or from the socket, as needed. | |
4105 | */ | |
4106 | ||
4107 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4108 | http_read_buffered(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4109 | char *buffer, /* I - Buffer */ |
4110 | size_t length) /* I - Maximum bytes to read */ | |
4111 | { | |
4112 | ssize_t bytes; /* Bytes read */ | |
4113 | ||
4114 | ||
4115 | DEBUG_printf(("http_read_buffered(http=%p, buffer=%p, length=" CUPS_LLFMT | |
4116 | ") used=%d", | |
4117 | http, buffer, CUPS_LLCAST length, http->used)); | |
4118 | ||
4119 | if (http->used > 0) | |
4120 | { | |
4121 | if (length > (size_t)http->used) | |
4122 | bytes = (size_t)http->used; | |
4123 | else | |
4124 | bytes = length; | |
4125 | ||
4126 | DEBUG_printf(("2http_read: Grabbing %d bytes from input buffer.", | |
4127 | (int)bytes)); | |
4128 | ||
4129 | memcpy(buffer, http->buffer, bytes); | |
4130 | http->used -= (int)bytes; | |
4131 | ||
4132 | if (http->used > 0) | |
4133 | memmove(http->buffer, http->buffer + bytes, http->used); | |
4134 | } | |
4135 | else | |
4136 | bytes = http_read(http, buffer, length); | |
4137 | ||
4138 | return (bytes); | |
4139 | } | |
4140 | ||
4141 | ||
4142 | /* | |
4143 | * 'http_read_chunk()' - Read a chunk from a HTTP connection. | |
4144 | * | |
4145 | * This function reads and validates the chunk length, then does a buffered read | |
4146 | * returning the number of bytes placed in the buffer. | |
4147 | */ | |
4148 | ||
4149 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4150 | http_read_chunk(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4151 | char *buffer, /* I - Buffer */ |
4152 | size_t length) /* I - Maximum bytes to read */ | |
4153 | { | |
4154 | DEBUG_printf(("http_read_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
4155 | http, buffer, CUPS_LLCAST length)); | |
4156 | ||
4157 | if (http->data_remaining <= 0) | |
4158 | { | |
4159 | char len[32]; /* Length string */ | |
4160 | ||
4161 | if (!httpGets(len, sizeof(len), http)) | |
4162 | { | |
4163 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4164 | return (0); | |
4165 | } | |
4166 | ||
4167 | if (!len[0]) | |
4168 | { | |
4169 | DEBUG_puts("1http_read_chunk: Blank chunk length, trying again..."); | |
4170 | if (!httpGets(len, sizeof(len), http)) | |
4171 | { | |
4172 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4173 | return (0); | |
4174 | } | |
4175 | } | |
4176 | ||
4177 | http->data_remaining = strtoll(len, NULL, 16); | |
4178 | ||
4179 | if (http->data_remaining < 0) | |
4180 | { | |
4181 | DEBUG_printf(("1http_read_chunk: Negative chunk length \"%s\" (" | |
4182 | CUPS_LLFMT ")", len, CUPS_LLCAST http->data_remaining)); | |
4183 | return (0); | |
4184 | } | |
4185 | ||
4186 | DEBUG_printf(("2http_read_chunk: Got chunk length \"%s\" (" CUPS_LLFMT ")", | |
4187 | len, CUPS_LLCAST http->data_remaining)); | |
4188 | ||
4189 | if (http->data_remaining == 0) | |
4190 | { | |
4191 | /* | |
4192 | * 0-length chunk, grab trailing blank line... | |
4193 | */ | |
4194 | ||
4195 | httpGets(len, sizeof(len), http); | |
4196 | } | |
4197 | } | |
4198 | ||
4199 | DEBUG_printf(("2http_read_chunk: data_remaining=" CUPS_LLFMT, | |
4200 | CUPS_LLCAST http->data_remaining)); | |
4201 | ||
4202 | if (http->data_remaining <= 0) | |
4203 | return (0); | |
4204 | else if (length > (size_t)http->data_remaining) | |
4205 | length = (size_t)http->data_remaining; | |
4206 | ||
4207 | return (http_read_buffered(http, buffer, length)); | |
4208 | } | |
4209 | ||
4210 | ||
ef416fc2 | 4211 | /* |
4212 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
4213 | */ | |
4214 | ||
a469f8a5 | 4215 | static int /* O - 0 on success, non-zero on error */ |
e6b1a6a9 | 4216 | http_send(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
4217 | http_state_t request, /* I - Request code */ |
4218 | const char *uri) /* I - URI */ | |
ef416fc2 | 4219 | { |
a469f8a5 MS |
4220 | int i; /* Looping var */ |
4221 | char buf[1024]; /* Encoded URI buffer */ | |
4222 | const char *value; /* Field value */ | |
4223 | static const char * const codes[] = /* Request code strings */ | |
4224 | { | |
ef416fc2 | 4225 | NULL, |
4226 | "OPTIONS", | |
4227 | "GET", | |
4228 | NULL, | |
4229 | "HEAD", | |
4230 | "POST", | |
4231 | NULL, | |
4232 | NULL, | |
4233 | "PUT", | |
4234 | NULL, | |
4235 | "DELETE", | |
4236 | "TRACE", | |
a469f8a5 MS |
4237 | "CLOSE", |
4238 | NULL, | |
4239 | NULL | |
ef416fc2 | 4240 | }; |
ef416fc2 | 4241 | |
4242 | ||
cb7f98ee | 4243 | DEBUG_printf(("4http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 4244 | http, codes[request], uri)); |
4245 | ||
4246 | if (http == NULL || uri == NULL) | |
4247 | return (-1); | |
4248 | ||
4249 | /* | |
4250 | * Set the User-Agent field if it isn't already... | |
4251 | */ | |
4252 | ||
4253 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
db8b865d MS |
4254 | { |
4255 | if (http->default_user_agent) | |
4256 | httpSetField(http, HTTP_FIELD_USER_AGENT, http->default_user_agent); | |
4257 | else | |
4258 | httpSetField(http, HTTP_FIELD_USER_AGENT, cupsUserAgent()); | |
4259 | } | |
ef416fc2 | 4260 | |
a469f8a5 MS |
4261 | /* |
4262 | * Set the Accept-Encoding field if it isn't already... | |
4263 | */ | |
4264 | ||
c1420c87 MS |
4265 | if (!http->accept_encoding && http->default_accept_encoding) |
4266 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, | |
4267 | http->default_accept_encoding); | |
a469f8a5 | 4268 | |
ef416fc2 | 4269 | /* |
4270 | * Encode the URI as needed... | |
4271 | */ | |
4272 | ||
839a51c8 | 4273 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 4274 | |
4275 | /* | |
4276 | * See if we had an error the last time around; if so, reconnect... | |
4277 | */ | |
4278 | ||
cb7f98ee MS |
4279 | if (http->fd < 0 || http->status == HTTP_STATUS_ERROR || |
4280 | http->status >= HTTP_STATUS_BAD_REQUEST) | |
4281 | { | |
4282 | DEBUG_printf(("5http_send: Reconnecting, fd=%d, status=%d, tls_upgrade=%d", | |
4283 | http->fd, http->status, http->tls_upgrade)); | |
4284 | ||
4285 | if (httpReconnect2(http, 30000, NULL)) | |
fa73b229 | 4286 | return (-1); |
cb7f98ee | 4287 | } |
ef416fc2 | 4288 | |
d09495fa | 4289 | /* |
4290 | * Flush any written data that is pending... | |
4291 | */ | |
4292 | ||
4293 | if (http->wused) | |
536bc2c6 MS |
4294 | { |
4295 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 4296 | if (httpReconnect2(http, 30000, NULL)) |
536bc2c6 MS |
4297 | return (-1); |
4298 | } | |
d09495fa | 4299 | |
ef416fc2 | 4300 | /* |
4301 | * Send the request header... | |
4302 | */ | |
4303 | ||
d09495fa | 4304 | http->state = request; |
a469f8a5 | 4305 | http->data_encoding = HTTP_ENCODING_FIELDS; |
d09495fa | 4306 | |
cb7f98ee | 4307 | if (request == HTTP_STATE_POST || request == HTTP_STATE_PUT) |
ef416fc2 | 4308 | http->state ++; |
4309 | ||
cb7f98ee | 4310 | http->status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 4311 | |
4312 | #ifdef HAVE_SSL | |
cb7f98ee | 4313 | if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) |
ef416fc2 | 4314 | { |
4315 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
a469f8a5 | 4316 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4317 | } |
4318 | #endif /* HAVE_SSL */ | |
4319 | ||
4320 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
4321 | { | |
cb7f98ee | 4322 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4323 | return (-1); |
4324 | } | |
4325 | ||
4326 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
a469f8a5 | 4327 | if ((value = httpGetField(http, i)) != NULL && *value) |
ef416fc2 | 4328 | { |
cb7f98ee | 4329 | DEBUG_printf(("5http_send: %s: %s", http_fields[i], value)); |
ef416fc2 | 4330 | |
37e7e6e0 MS |
4331 | if (i == HTTP_FIELD_HOST) |
4332 | { | |
a469f8a5 MS |
4333 | if (httpPrintf(http, "Host: %s:%d\r\n", value, |
4334 | httpAddrPort(http->hostaddr)) < 1) | |
37e7e6e0 | 4335 | { |
cb7f98ee | 4336 | http->status = HTTP_STATUS_ERROR; |
37e7e6e0 MS |
4337 | return (-1); |
4338 | } | |
4339 | } | |
a469f8a5 | 4340 | else if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) |
ef416fc2 | 4341 | { |
cb7f98ee | 4342 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4343 | return (-1); |
4344 | } | |
4345 | } | |
4346 | ||
4347 | if (http->cookie) | |
4348 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
4349 | { | |
cb7f98ee | 4350 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4351 | return (-1); |
4352 | } | |
4353 | ||
cb7f98ee MS |
4354 | DEBUG_printf(("5http_send: expect=%d, mode=%d, state=%d", http->expect, |
4355 | http->mode, http->state)); | |
4356 | ||
4357 | if (http->expect == HTTP_STATUS_CONTINUE && http->mode == _HTTP_MODE_CLIENT && | |
4358 | (http->state == HTTP_STATE_POST_RECV || | |
4359 | http->state == HTTP_STATE_PUT_RECV)) | |
b423cd4c | 4360 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) |
4361 | { | |
cb7f98ee | 4362 | http->status = HTTP_STATUS_ERROR; |
b423cd4c | 4363 | return (-1); |
4364 | } | |
4365 | ||
ef416fc2 | 4366 | if (httpPrintf(http, "\r\n") < 1) |
4367 | { | |
cb7f98ee | 4368 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4369 | return (-1); |
4370 | } | |
4371 | ||
536bc2c6 MS |
4372 | if (httpFlushWrite(http) < 0) |
4373 | return (-1); | |
4374 | ||
a469f8a5 | 4375 | http_set_length(http); |
ef416fc2 | 4376 | httpClearFields(http); |
4377 | ||
f7deaa1a | 4378 | /* |
b94498cf | 4379 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 4380 | */ |
4381 | ||
ef55b745 MS |
4382 | if (http->field_authorization && http->authstring && |
4383 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 4384 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 4385 | { |
4386 | http->_authstring[0] = '\0'; | |
4387 | ||
4388 | if (http->authstring != http->_authstring) | |
4389 | free(http->authstring); | |
ef55b745 | 4390 | |
f7deaa1a | 4391 | http->authstring = http->_authstring; |
4392 | } | |
4393 | ||
ef416fc2 | 4394 | return (0); |
4395 | } | |
4396 | ||
4397 | ||
a469f8a5 MS |
4398 | /* |
4399 | * 'http_set_length()' - Set the data_encoding and data_remaining values. | |
4400 | */ | |
4401 | ||
4402 | static off_t /* O - Remainder or -1 on error */ | |
4403 | http_set_length(http_t *http) /* I - Connection */ | |
4404 | { | |
4405 | off_t remaining; /* Remainder */ | |
4406 | ||
4407 | ||
4408 | DEBUG_printf(("http_set_length(http=%p) mode=%d state=%s", http, http->mode, | |
48bd1142 | 4409 | httpStateString(http->state))); |
a469f8a5 MS |
4410 | |
4411 | if ((remaining = httpGetLength2(http)) >= 0) | |
4412 | { | |
4413 | if (http->mode == _HTTP_MODE_SERVER && | |
4414 | http->state != HTTP_STATE_GET_SEND && | |
c41769ff | 4415 | http->state != HTTP_STATE_PUT && |
a469f8a5 MS |
4416 | http->state != HTTP_STATE_POST && |
4417 | http->state != HTTP_STATE_POST_SEND) | |
4418 | { | |
4419 | DEBUG_puts("1http_set_length: Not setting data_encoding/remaining."); | |
4420 | return (remaining); | |
4421 | } | |
4422 | ||
4423 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], | |
4424 | "chunked")) | |
4425 | { | |
4426 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4427 | "HTTP_ENCODING_CHUNKED."); | |
4428 | http->data_encoding = HTTP_ENCODING_CHUNKED; | |
4429 | } | |
4430 | else | |
4431 | { | |
4432 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4433 | "HTTP_ENCODING_LENGTH."); | |
4434 | http->data_encoding = HTTP_ENCODING_LENGTH; | |
4435 | } | |
4436 | ||
4437 | DEBUG_printf(("1http_set_length: Setting data_remaining to " CUPS_LLFMT ".", | |
4438 | CUPS_LLCAST remaining)); | |
4439 | http->data_remaining = remaining; | |
4440 | ||
4441 | if (remaining <= INT_MAX) | |
4442 | http->_data_remaining = remaining; | |
4443 | else | |
4444 | http->_data_remaining = INT_MAX; | |
4445 | } | |
4446 | ||
4447 | return (remaining); | |
4448 | } | |
4449 | ||
85dda01c MS |
4450 | /* |
4451 | * 'http_set_timeout()' - Set the socket timeout values. | |
4452 | */ | |
4453 | ||
4454 | static void | |
4455 | http_set_timeout(int fd, /* I - File descriptor */ | |
4456 | double timeout) /* I - Timeout in seconds */ | |
4457 | { | |
4458 | #ifdef WIN32 | |
4459 | DWORD tv = (DWORD)(timeout * 1000); | |
4460 | /* Timeout in milliseconds */ | |
4461 | ||
db8b865d MS |
4462 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4463 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4464 | |
4465 | #else | |
4466 | struct timeval tv; /* Timeout in secs and usecs */ | |
4467 | ||
4468 | tv.tv_sec = (int)timeout; | |
4469 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
4470 | ||
db8b865d MS |
4471 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4472 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4473 | #endif /* WIN32 */ |
4474 | } | |
4475 | ||
4476 | ||
4477 | /* | |
4478 | * 'http_set_wait()' - Set the default wait value for reads. | |
4479 | */ | |
4480 | ||
4481 | static void | |
e6b1a6a9 | 4482 | http_set_wait(http_t *http) /* I - HTTP connection */ |
85dda01c MS |
4483 | { |
4484 | if (http->blocking) | |
4485 | { | |
4486 | http->wait_value = (int)(http->timeout_value * 1000); | |
4487 | ||
4488 | if (http->wait_value <= 0) | |
4489 | http->wait_value = 60000; | |
4490 | } | |
4491 | else | |
4492 | http->wait_value = 10000; | |
4493 | } | |
4494 | ||
4495 | ||
9b66acc5 | 4496 | #ifdef HAVE_SSL |
ef416fc2 | 4497 | /* |
2c85b752 | 4498 | * 'http_tls_upgrade()' - Force upgrade to TLS encryption. |
ef416fc2 | 4499 | */ |
4500 | ||
89d46774 | 4501 | static int /* O - Status of connection */ |
2c85b752 | 4502 | http_tls_upgrade(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 4503 | { |
89d46774 | 4504 | int ret; /* Return value */ |
4505 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4506 | |
4507 | ||
2c85b752 | 4508 | DEBUG_printf(("7http_tls_upgrade(%p)", http)); |
ef416fc2 | 4509 | |
85b5d1df MS |
4510 | /* |
4511 | * Flush the connection to make sure any previous "Upgrade" message | |
4512 | * has been read. | |
4513 | */ | |
4514 | ||
4515 | httpFlush(http); | |
4516 | ||
ef416fc2 | 4517 | /* |
4518 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4519 | * request without interfering with the existing request data... | |
4520 | */ | |
4521 | ||
4522 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4523 | ||
4524 | /* | |
4525 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4526 | * encryption on the link... | |
4527 | */ | |
4528 | ||
cb7f98ee | 4529 | http->tls_upgrade = 1; |
f7deaa1a | 4530 | http->field_authorization = NULL; /* Don't free the auth string */ |
4531 | ||
b86bc4cf | 4532 | httpClearFields(http); |
4533 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
a469f8a5 | 4534 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4535 | |
b86bc4cf | 4536 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4537 | { |
4538 | /* | |
4539 | * Wait for the secure connection... | |
4540 | */ | |
4541 | ||
cb7f98ee | 4542 | while (httpUpdate(http) == HTTP_STATUS_CONTINUE); |
ef416fc2 | 4543 | } |
4544 | ||
ef416fc2 | 4545 | /* |
b86bc4cf | 4546 | * Restore the HTTP request data... |
ef416fc2 | 4547 | */ |
4548 | ||
b86bc4cf | 4549 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4550 | http->data_encoding = myhttp.data_encoding; |
4551 | http->data_remaining = myhttp.data_remaining; | |
4552 | http->_data_remaining = myhttp._data_remaining; | |
4553 | http->expect = myhttp.expect; | |
4554 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4555 | http->digest_tries = myhttp.digest_tries; |
cb7f98ee | 4556 | http->tls_upgrade = 0; |
ef416fc2 | 4557 | |
4558 | /* | |
4559 | * See if we actually went secure... | |
4560 | */ | |
4561 | ||
4562 | if (!http->tls) | |
4563 | { | |
4564 | /* | |
4565 | * Server does not support HTTP upgrade... | |
4566 | */ | |
4567 | ||
2c85b752 | 4568 | DEBUG_puts("8http_tls_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4569 | |
87e98392 | 4570 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 4571 | |
4572 | http->fd = -1; | |
4573 | ||
4574 | return (-1); | |
4575 | } | |
4576 | else | |
4577 | return (ret); | |
4578 | } | |
4579 | #endif /* HAVE_SSL */ | |
4580 | ||
4581 | ||
ef416fc2 | 4582 | /* |
4583 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4584 | */ | |
ef55b745 | 4585 | |
0fa6c7fa | 4586 | static ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 4587 | http_write(http_t *http, /* I - HTTP connection */ |
f11a948a | 4588 | const char *buffer, /* I - Buffer for data */ |
0fa6c7fa | 4589 | size_t length) /* I - Number of bytes to write */ |
ef416fc2 | 4590 | { |
0fa6c7fa MS |
4591 | ssize_t tbytes, /* Total bytes sent */ |
4592 | bytes; /* Bytes sent */ | |
ef416fc2 | 4593 | |
4594 | ||
0fa6c7fa MS |
4595 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
4596 | buffer, CUPS_LLCAST length)); | |
f11a948a MS |
4597 | http->error = 0; |
4598 | tbytes = 0; | |
ef416fc2 | 4599 | |
4600 | while (length > 0) | |
4601 | { | |
12f89d24 MS |
4602 | DEBUG_printf(("3http_write: About to write %d bytes.", (int)length)); |
4603 | ||
85dda01c MS |
4604 | if (http->timeout_cb) |
4605 | { | |
4606 | #ifdef HAVE_POLL | |
4607 | struct pollfd pfd; /* Polled file descriptor */ | |
4608 | #else | |
4609 | fd_set output_set; /* Output ready for write? */ | |
4610 | struct timeval timeout; /* Timeout value */ | |
4611 | #endif /* HAVE_POLL */ | |
4612 | int nfds; /* Result from select()/poll() */ | |
4613 | ||
4614 | do | |
4615 | { | |
4616 | #ifdef HAVE_POLL | |
4617 | pfd.fd = http->fd; | |
4618 | pfd.events = POLLOUT; | |
4619 | ||
4620 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
82cc1f9a MS |
4621 | (errno == EINTR || errno == EAGAIN)) |
4622 | /* do nothing */; | |
85dda01c MS |
4623 | |
4624 | #else | |
4625 | do | |
4626 | { | |
4627 | FD_ZERO(&output_set); | |
4628 | FD_SET(http->fd, &output_set); | |
4629 | ||
4630 | timeout.tv_sec = http->wait_value / 1000; | |
4631 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4632 | ||
4633 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4634 | } | |
4635 | # ifdef WIN32 | |
4636 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4637 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4638 | # else | |
4639 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4640 | # endif /* WIN32 */ | |
4641 | #endif /* HAVE_POLL */ | |
4642 | ||
4643 | if (nfds < 0) | |
4644 | { | |
4645 | http->error = errno; | |
4646 | return (-1); | |
4647 | } | |
4648 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
4649 | { | |
4650 | #ifdef WIN32 | |
83e08001 | 4651 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4652 | #else |
4653 | http->error = EWOULDBLOCK; | |
4654 | #endif /* WIN32 */ | |
4655 | return (-1); | |
4656 | } | |
4657 | } | |
4658 | while (nfds <= 0); | |
4659 | } | |
4660 | ||
ef416fc2 | 4661 | #ifdef HAVE_SSL |
4662 | if (http->tls) | |
2c85b752 | 4663 | bytes = http_tls_write(http, buffer, length); |
ef416fc2 | 4664 | else |
4665 | #endif /* HAVE_SSL */ | |
4666 | bytes = send(http->fd, buffer, length, 0); | |
4667 | ||
0fa6c7fa MS |
4668 | DEBUG_printf(("3http_write: Write of " CUPS_LLFMT " bytes returned " |
4669 | CUPS_LLFMT ".", CUPS_LLCAST length, CUPS_LLCAST bytes)); | |
12f89d24 | 4670 | |
ef416fc2 | 4671 | if (bytes < 0) |
4672 | { | |
4673 | #ifdef WIN32 | |
10d09e33 | 4674 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4675 | continue; |
10d09e33 MS |
4676 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4677 | { | |
4678 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4679 | continue; | |
4680 | ||
4681 | http->error = WSAGetLastError(); | |
4682 | } | |
4683 | else if (WSAGetLastError() != http->error && | |
4684 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4685 | { |
4686 | http->error = WSAGetLastError(); | |
4687 | continue; | |
4688 | } | |
10d09e33 | 4689 | |
ef416fc2 | 4690 | #else |
10d09e33 | 4691 | if (errno == EINTR) |
ef416fc2 | 4692 | continue; |
10d09e33 MS |
4693 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4694 | { | |
4695 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4696 | continue; | |
4697 | else if (!http->timeout_cb && errno == EAGAIN) | |
4698 | continue; | |
4699 | ||
4700 | http->error = errno; | |
4701 | } | |
ef416fc2 | 4702 | else if (errno != http->error && errno != ECONNRESET) |
4703 | { | |
4704 | http->error = errno; | |
4705 | continue; | |
4706 | } | |
4707 | #endif /* WIN32 */ | |
4708 | ||
f8b3a85b MS |
4709 | DEBUG_printf(("3http_write: error writing data (%s).", |
4710 | strerror(http->error))); | |
ef416fc2 | 4711 | |
4712 | return (-1); | |
4713 | } | |
4714 | ||
4715 | buffer += bytes; | |
4716 | tbytes += bytes; | |
4717 | length -= bytes; | |
4718 | } | |
4719 | ||
4720 | #ifdef DEBUG | |
ae71f5de | 4721 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 4722 | #endif /* DEBUG */ |
4723 | ||
0fa6c7fa | 4724 | DEBUG_printf(("3http_write: Returning " CUPS_LLFMT ".", CUPS_LLCAST tbytes)); |
f8b3a85b | 4725 | |
ef416fc2 | 4726 | return (tbytes); |
4727 | } | |
4728 | ||
4729 | ||
4730 | /* | |
4731 | * 'http_write_chunk()' - Write a chunked buffer. | |
4732 | */ | |
4733 | ||
0fa6c7fa | 4734 | static ssize_t /* O - Number bytes written */ |
e6b1a6a9 | 4735 | http_write_chunk(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 4736 | const char *buffer, /* I - Buffer to write */ |
0fa6c7fa | 4737 | size_t length) /* I - Length of buffer */ |
ef416fc2 | 4738 | { |
0fa6c7fa MS |
4739 | char header[16]; /* Chunk header */ |
4740 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 4741 | |
f11a948a | 4742 | |
0fa6c7fa MS |
4743 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
4744 | http, buffer, CUPS_LLCAST length)); | |
ef416fc2 | 4745 | |
4746 | /* | |
4747 | * Write the chunk header, data, and trailer. | |
4748 | */ | |
4749 | ||
0fa6c7fa MS |
4750 | snprintf(header, sizeof(header), "%x\r\n", (unsigned)length); |
4751 | if (http_write(http, header, strlen(header)) < 0) | |
ef416fc2 | 4752 | { |
0fa6c7fa | 4753 | DEBUG_puts("8http_write_chunk: http_write of length failed."); |
ef416fc2 | 4754 | return (-1); |
4755 | } | |
4756 | ||
4757 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4758 | { | |
0fa6c7fa | 4759 | DEBUG_puts("8http_write_chunk: http_write of buffer failed."); |
ef416fc2 | 4760 | return (-1); |
4761 | } | |
4762 | ||
4763 | if (http_write(http, "\r\n", 2) < 0) | |
4764 | { | |
0fa6c7fa | 4765 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed."); |
ef416fc2 | 4766 | return (-1); |
4767 | } | |
4768 | ||
4769 | return (bytes); | |
4770 | } | |
4771 | ||
4772 | ||
ef416fc2 | 4773 | /* |
f2d18633 | 4774 | * End of "$Id$". |
ef416fc2 | 4775 | */ |