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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 | * |
7e86f2f6 | 6 | * Copyright 2007-2014 by Apple Inc. |
996acce8 | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
996acce8 MS |
9 | * This file contains Kerberos support code, copyright 2006 by |
10 | * Jelmer Vernooij. | |
f7deaa1a | 11 | * |
996acce8 MS |
12 | * These coded instructions, statements, and computer programs are the |
13 | * property of Apple Inc. and are protected by Federal copyright | |
14 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
15 | * which should have been included with this file. If this file is | |
16 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 17 | * |
996acce8 | 18 | * This file is subject to the Apple OS-Developed Software exception. |
ef416fc2 | 19 | */ |
20 | ||
21 | /* | |
22 | * Include necessary headers... | |
23 | */ | |
24 | ||
71e16022 | 25 | #include "cups-private.h" |
ef416fc2 | 26 | #include <fcntl.h> |
83e08001 | 27 | #include <math.h> |
cc754834 MS |
28 | #ifdef WIN32 |
29 | # include <tchar.h> | |
30 | #else | |
ef416fc2 | 31 | # include <signal.h> |
32 | # include <sys/time.h> | |
33 | # include <sys/resource.h> | |
cc754834 | 34 | #endif /* WIN32 */ |
f7deaa1a | 35 | #ifdef HAVE_POLL |
dcb445bc | 36 | # include <poll.h> |
f7deaa1a | 37 | #endif /* HAVE_POLL */ |
ef416fc2 | 38 | |
39 | ||
ef416fc2 | 40 | /* |
41 | * Local functions... | |
42 | */ | |
43 | ||
a469f8a5 MS |
44 | #ifdef HAVE_LIBZ |
45 | static void http_content_coding_finish(http_t *http); | |
46 | static void http_content_coding_start(http_t *http, | |
47 | const char *value); | |
48 | #endif /* HAVE_LIBZ */ | |
db8b865d MS |
49 | static http_t *http_create(const char *host, int port, |
50 | http_addrlist_t *addrlist, int family, | |
51 | http_encryption_t encryption, | |
52 | int blocking, _http_mode_t mode); | |
ae71f5de MS |
53 | #ifdef DEBUG |
54 | static void http_debug_hex(const char *prefix, const char *buffer, | |
55 | int bytes); | |
56 | #endif /* DEBUG */ | |
0fa6c7fa MS |
57 | static ssize_t http_read(http_t *http, char *buffer, size_t length); |
58 | static ssize_t http_read_buffered(http_t *http, char *buffer, size_t length); | |
59 | static ssize_t http_read_chunk(http_t *http, char *buffer, size_t length); | |
ef416fc2 | 60 | static int http_send(http_t *http, http_state_t request, |
61 | const char *uri); | |
0fa6c7fa MS |
62 | static ssize_t http_write(http_t *http, const char *buffer, |
63 | size_t length); | |
64 | static ssize_t http_write_chunk(http_t *http, const char *buffer, | |
65 | size_t length); | |
a469f8a5 | 66 | static off_t http_set_length(http_t *http); |
85dda01c MS |
67 | static void http_set_timeout(int fd, double timeout); |
68 | static void http_set_wait(http_t *http); | |
2c85b752 | 69 | |
d7225fc2 | 70 | #ifdef HAVE_SSL |
2c85b752 MS |
71 | static size_t http_tls_pending(http_t *http); |
72 | static int http_tls_read(http_t *http, char *buf, int len); | |
73 | static int http_tls_set_credentials(http_t *http); | |
74 | static int http_tls_start(http_t *http); | |
75 | static void http_tls_stop(http_t *http); | |
76 | static int http_tls_upgrade(http_t *http); | |
77 | static int http_tls_write(http_t *http, const char *buf, int len); | |
724e1819 | 78 | # ifdef HAVE_GNUTLS |
2c85b752 MS |
79 | # include "tls-gnutls.c" |
80 | # elif defined(HAVE_CDSASSL) | |
81 | # include "tls-darwin.c" | |
82 | # else | |
83 | # include "tls-sspi.c" | |
724e1819 | 84 | # endif /* HAVE_GNUTLS */ |
ef416fc2 | 85 | #endif /* HAVE_SSL */ |
86 | ||
87 | ||
88 | /* | |
89 | * Local globals... | |
90 | */ | |
91 | ||
92 | static const char * const http_fields[] = | |
93 | { | |
94 | "Accept-Language", | |
95 | "Accept-Ranges", | |
96 | "Authorization", | |
97 | "Connection", | |
98 | "Content-Encoding", | |
99 | "Content-Language", | |
100 | "Content-Length", | |
101 | "Content-Location", | |
102 | "Content-MD5", | |
103 | "Content-Range", | |
104 | "Content-Type", | |
105 | "Content-Version", | |
106 | "Date", | |
107 | "Host", | |
108 | "If-Modified-Since", | |
109 | "If-Unmodified-since", | |
110 | "Keep-Alive", | |
111 | "Last-Modified", | |
112 | "Link", | |
113 | "Location", | |
114 | "Range", | |
115 | "Referer", | |
116 | "Retry-After", | |
117 | "Transfer-Encoding", | |
118 | "Upgrade", | |
119 | "User-Agent", | |
a469f8a5 MS |
120 | "WWW-Authenticate", |
121 | "Accept-Encoding", | |
122 | "Allow", | |
123 | "Server" | |
ef416fc2 | 124 | }; |
125 | ||
126 | ||
a469f8a5 MS |
127 | /* |
128 | * 'httpAcceptConnection()' - Accept a new HTTP client connection from the | |
129 | * specified listening socket. | |
130 | * | |
9c0e8e5d | 131 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
132 | */ |
133 | ||
134 | http_t * /* O - HTTP connection or @code NULL@ */ | |
135 | httpAcceptConnection(int fd, /* I - Listen socket file descriptor */ | |
136 | int blocking) /* I - 1 if the connection should be | |
137 | blocking, 0 otherwise */ | |
138 | { | |
139 | http_t *http; /* HTTP connection */ | |
140 | http_addrlist_t addrlist; /* Dummy address list */ | |
141 | socklen_t addrlen; /* Length of address */ | |
142 | int val; /* Socket option value */ | |
143 | ||
144 | ||
145 | /* | |
146 | * Range check input... | |
147 | */ | |
148 | ||
149 | if (fd < 0) | |
150 | return (NULL); | |
151 | ||
152 | /* | |
153 | * Create the client connection... | |
154 | */ | |
155 | ||
156 | memset(&addrlist, 0, sizeof(addrlist)); | |
157 | ||
db8b865d | 158 | if ((http = http_create(NULL, 0, &addrlist, AF_UNSPEC, |
a469f8a5 MS |
159 | HTTP_ENCRYPTION_IF_REQUESTED, blocking, |
160 | _HTTP_MODE_SERVER)) == NULL) | |
161 | return (NULL); | |
162 | ||
163 | /* | |
164 | * Accept the client and get the remote address... | |
165 | */ | |
166 | ||
167 | addrlen = sizeof(http_addr_t); | |
168 | ||
169 | if ((http->fd = accept(fd, (struct sockaddr *)&(http->addrlist->addr), | |
170 | &addrlen)) < 0) | |
171 | { | |
172 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
173 | httpClose(http); | |
174 | ||
175 | return (NULL); | |
176 | } | |
177 | ||
5ec1fd3d MS |
178 | http->hostaddr = &(http->addrlist->addr); |
179 | ||
180 | if (httpAddrLocalhost(http->hostaddr)) | |
181 | strlcpy(http->hostname, "localhost", sizeof(http->hostname)); | |
182 | else | |
183 | httpAddrString(http->hostaddr, http->hostname, sizeof(http->hostname)); | |
a469f8a5 MS |
184 | |
185 | #ifdef SO_NOSIGPIPE | |
186 | /* | |
187 | * Disable SIGPIPE for this socket. | |
188 | */ | |
189 | ||
190 | val = 1; | |
db8b865d | 191 | setsockopt(http->fd, SOL_SOCKET, SO_NOSIGPIPE, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
192 | #endif /* SO_NOSIGPIPE */ |
193 | ||
194 | /* | |
195 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
196 | * with a slow loopback interface. Since we write large buffers | |
197 | * when sending print files and requests, there shouldn't be any | |
198 | * performance penalty for this... | |
199 | */ | |
200 | ||
201 | val = 1; | |
db8b865d | 202 | setsockopt(http->fd, IPPROTO_TCP, TCP_NODELAY, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
203 | |
204 | #ifdef FD_CLOEXEC | |
205 | /* | |
206 | * Close this socket when starting another process... | |
207 | */ | |
208 | ||
209 | fcntl(http->fd, F_SETFD, FD_CLOEXEC); | |
210 | #endif /* FD_CLOEXEC */ | |
211 | ||
212 | return (http); | |
213 | } | |
214 | ||
215 | ||
7cf5915e MS |
216 | /* |
217 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
218 | * | |
219 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
220 | * | |
f3c17241 | 221 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
222 | */ |
223 | ||
224 | int /* O - 0 on success, -1 on error */ | |
225 | httpAddCredential( | |
226 | cups_array_t *credentials, /* I - Credentials array */ | |
227 | const void *data, /* I - PEM-encoded X.509 data */ | |
228 | size_t datalen) /* I - Length of data */ | |
229 | { | |
230 | http_credential_t *credential; /* Credential data */ | |
231 | ||
232 | ||
233 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
234 | { | |
235 | credential->datalen = datalen; | |
236 | ||
237 | if ((credential->data = malloc(datalen)) != NULL) | |
238 | { | |
239 | memcpy(credential->data, data, datalen); | |
240 | cupsArrayAdd(credentials, credential); | |
241 | return (0); | |
242 | } | |
243 | ||
244 | free(credential); | |
245 | } | |
246 | ||
247 | return (-1); | |
248 | } | |
249 | ||
250 | ||
ecdc0628 | 251 | /* |
252 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
253 | */ | |
254 | ||
255 | void | |
e6b1a6a9 | 256 | httpBlocking(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 257 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
258 | { | |
259 | if (http) | |
85dda01c | 260 | { |
ecdc0628 | 261 | http->blocking = b; |
85dda01c MS |
262 | http_set_wait(http); |
263 | } | |
ecdc0628 | 264 | } |
265 | ||
266 | ||
ef416fc2 | 267 | /* |
268 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
269 | */ | |
270 | ||
ecdc0628 | 271 | int /* O - 0 = no data, 1 = data available */ |
e6b1a6a9 | 272 | httpCheck(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 273 | { |
274 | return (httpWait(http, 0)); | |
275 | } | |
276 | ||
277 | ||
278 | /* | |
279 | * 'httpClearCookie()' - Clear the cookie value(s). | |
280 | * | |
f3c17241 | 281 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 282 | */ |
283 | ||
284 | void | |
e6b1a6a9 | 285 | httpClearCookie(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 286 | { |
287 | if (!http) | |
288 | return; | |
289 | ||
290 | if (http->cookie) | |
291 | { | |
292 | free(http->cookie); | |
293 | http->cookie = NULL; | |
294 | } | |
295 | } | |
296 | ||
297 | ||
ecdc0628 | 298 | /* |
299 | * 'httpClearFields()' - Clear HTTP request fields. | |
300 | */ | |
301 | ||
302 | void | |
e6b1a6a9 | 303 | httpClearFields(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 304 | { |
a469f8a5 MS |
305 | DEBUG_printf(("httpClearFields(http=%p)", http)); |
306 | ||
ecdc0628 | 307 | if (http) |
308 | { | |
309 | memset(http->fields, 0, sizeof(http->fields)); | |
a469f8a5 MS |
310 | |
311 | if (http->mode == _HTTP_MODE_CLIENT) | |
312 | { | |
313 | if (http->hostname[0] == '/') | |
314 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
315 | else | |
316 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
317 | } | |
b423cd4c | 318 | |
f7deaa1a | 319 | if (http->field_authorization) |
320 | { | |
321 | free(http->field_authorization); | |
322 | http->field_authorization = NULL; | |
323 | } | |
324 | ||
a469f8a5 MS |
325 | if (http->accept_encoding) |
326 | { | |
327 | _cupsStrFree(http->accept_encoding); | |
328 | http->accept_encoding = NULL; | |
329 | } | |
330 | ||
331 | if (http->allow) | |
332 | { | |
333 | _cupsStrFree(http->allow); | |
334 | http->allow = NULL; | |
335 | } | |
336 | ||
337 | if (http->server) | |
338 | { | |
339 | _cupsStrFree(http->server); | |
340 | http->server = NULL; | |
341 | } | |
342 | ||
b423cd4c | 343 | http->expect = (http_status_t)0; |
ecdc0628 | 344 | } |
345 | } | |
346 | ||
347 | ||
ef416fc2 | 348 | /* |
6d2f911b | 349 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 350 | */ |
351 | ||
352 | void | |
e6b1a6a9 | 353 | httpClose(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 354 | { |
f7deaa1a | 355 | #ifdef HAVE_GSSAPI |
1f0275e3 | 356 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 357 | #endif /* HAVE_GSSAPI */ |
358 | ||
359 | ||
e07d4801 | 360 | DEBUG_printf(("httpClose(http=%p)", http)); |
ef416fc2 | 361 | |
6d2f911b MS |
362 | /* |
363 | * Range check input... | |
364 | */ | |
365 | ||
ef416fc2 | 366 | if (!http) |
367 | return; | |
368 | ||
6d2f911b MS |
369 | /* |
370 | * Close any open connection... | |
371 | */ | |
372 | ||
373 | _httpDisconnect(http); | |
374 | ||
375 | /* | |
376 | * Free memory used... | |
377 | */ | |
378 | ||
ef416fc2 | 379 | httpAddrFreeList(http->addrlist); |
380 | ||
ef416fc2 | 381 | if (http->cookie) |
382 | free(http->cookie); | |
383 | ||
f7deaa1a | 384 | #ifdef HAVE_GSSAPI |
385 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 386 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 387 | |
388 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 389 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 390 | #endif /* HAVE_GSSAPI */ |
391 | ||
b94498cf | 392 | #ifdef HAVE_AUTHORIZATION_H |
393 | if (http->auth_ref) | |
394 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
395 | #endif /* HAVE_AUTHORIZATION_H */ | |
396 | ||
f7deaa1a | 397 | httpClearFields(http); |
398 | ||
399 | if (http->authstring && http->authstring != http->_authstring) | |
400 | free(http->authstring); | |
401 | ||
ef416fc2 | 402 | free(http); |
403 | } | |
404 | ||
405 | ||
72d05bc9 MS |
406 | /* |
407 | * 'httpCompareCredentials()' - Compare two sets of X.509 credentials. | |
408 | * | |
409 | * @since CUPS 2.0@ | |
410 | */ | |
411 | ||
412 | int /* O - 1 if they match, 0 if they do not */ | |
413 | httpCompareCredentials( | |
414 | cups_array_t *cred1, /* I - First set of X.509 credentials */ | |
415 | cups_array_t *cred2) /* I - Second set of X.509 credentials */ | |
416 | { | |
417 | http_credential_t *temp1, *temp2; /* Temporary credentials */ | |
418 | ||
419 | ||
420 | for (temp1 = (http_credential_t *)cupsArrayFirst(cred1), temp2 = (http_credential_t *)cupsArrayFirst(cred2); temp1 && temp2; temp1 = (http_credential_t *)cupsArrayNext(cred1), temp2 = (http_credential_t *)cupsArrayNext(cred2)) | |
421 | if (temp1->datalen != temp2->datalen) | |
422 | return (0); | |
423 | else if (memcmp(temp1->data, temp2->data, temp1->datalen)) | |
424 | return (0); | |
425 | ||
426 | return (temp1 == temp2); | |
427 | } | |
428 | ||
429 | ||
ef416fc2 | 430 | /* |
431 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e | 432 | * |
a469f8a5 | 433 | * This function is deprecated - use @link httpConnect2@ instead. |
1ff0402e MS |
434 | * |
435 | * @deprecated@ | |
ef416fc2 | 436 | */ |
437 | ||
438 | http_t * /* O - New HTTP connection */ | |
439 | httpConnect(const char *host, /* I - Host to connect to */ | |
440 | int port) /* I - Port number */ | |
441 | { | |
2c85b752 MS |
442 | return (httpConnect2(host, port, NULL, AF_UNSPEC, |
443 | HTTP_ENCRYPTION_IF_REQUESTED, 1, 30000, NULL)); | |
1ff0402e MS |
444 | } |
445 | ||
446 | ||
447 | /* | |
a469f8a5 MS |
448 | * 'httpConnect2()' - Connect to a HTTP server. |
449 | * | |
9c0e8e5d | 450 | * @since CUPS 1.7/OS X 10.9@ |
1ff0402e MS |
451 | */ |
452 | ||
453 | http_t * /* O - New HTTP connection */ | |
a469f8a5 | 454 | httpConnect2( |
1ff0402e MS |
455 | const char *host, /* I - Host to connect to */ |
456 | int port, /* I - Port number */ | |
a469f8a5 MS |
457 | http_addrlist_t *addrlist, /* I - List of addresses or NULL to lookup */ |
458 | int family, /* I - Address family to use or @code AF_UNSPEC@ for any */ | |
459 | http_encryption_t encryption, /* I - Type of encryption to use */ | |
460 | int blocking, /* I - 1 for blocking connection, 0 for non-blocking */ | |
db8b865d | 461 | int msec, /* I - Connection timeout in milliseconds, 0 means don't connect */ |
a469f8a5 | 462 | int *cancel) /* I - Pointer to "cancel" variable */ |
1ff0402e MS |
463 | { |
464 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 465 | |
466 | ||
a469f8a5 MS |
467 | DEBUG_printf(("httpConnect2(host=\"%s\", port=%d, addrlist=%p, family=%d, " |
468 | "encryption=%d, blocking=%d, msec=%d, cancel=%p)", host, port, | |
469 | addrlist, family, encryption, blocking, msec, cancel)); | |
1ff0402e | 470 | |
ef416fc2 | 471 | /* |
1ff0402e | 472 | * Create the HTTP structure... |
ef416fc2 | 473 | */ |
474 | ||
db8b865d | 475 | if ((http = http_create(host, port, addrlist, family, encryption, blocking, |
a469f8a5 | 476 | _HTTP_MODE_CLIENT)) == NULL) |
1ff0402e | 477 | return (NULL); |
ef416fc2 | 478 | |
1ff0402e | 479 | /* |
db8b865d | 480 | * Optionally connect to the remote system... |
1ff0402e MS |
481 | */ |
482 | ||
db8b865d | 483 | if (msec == 0 || !httpReconnect2(http, msec, cancel)) |
1ff0402e MS |
484 | return (http); |
485 | ||
486 | /* | |
487 | * Could not connect to any known address - bail out! | |
488 | */ | |
489 | ||
a469f8a5 | 490 | httpClose(http); |
1ff0402e MS |
491 | |
492 | return (NULL); | |
ef416fc2 | 493 | } |
494 | ||
495 | ||
a469f8a5 MS |
496 | /* |
497 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
498 | * | |
499 | * This function is now deprecated. Please use the @link httpConnect2@ function | |
500 | * instead. | |
501 | * | |
502 | * @deprecated@ | |
503 | */ | |
504 | ||
505 | http_t * /* O - New HTTP connection */ | |
506 | httpConnectEncrypt( | |
507 | const char *host, /* I - Host to connect to */ | |
508 | int port, /* I - Port number */ | |
509 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
510 | { | |
511 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", | |
512 | host, port, encryption)); | |
513 | ||
514 | return (httpConnect2(host, port, NULL, AF_UNSPEC, encryption, 1, 30000, | |
515 | NULL)); | |
516 | } | |
517 | ||
518 | ||
ef416fc2 | 519 | /* |
520 | * 'httpDelete()' - Send a DELETE request to the server. | |
521 | */ | |
522 | ||
523 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 524 | httpDelete(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 525 | const char *uri) /* I - URI to delete */ |
526 | { | |
cb7f98ee | 527 | return (http_send(http, HTTP_STATE_DELETE, uri)); |
ef416fc2 | 528 | } |
529 | ||
530 | ||
6d2f911b MS |
531 | /* |
532 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
533 | */ | |
534 | ||
535 | void | |
e6b1a6a9 | 536 | _httpDisconnect(http_t *http) /* I - HTTP connection */ |
6d2f911b MS |
537 | { |
538 | #ifdef HAVE_SSL | |
539 | if (http->tls) | |
2c85b752 | 540 | http_tls_stop(http); |
6d2f911b MS |
541 | #endif /* HAVE_SSL */ |
542 | ||
87e98392 | 543 | httpAddrClose(NULL, http->fd); |
6d2f911b MS |
544 | |
545 | http->fd = -1; | |
546 | } | |
547 | ||
548 | ||
ef416fc2 | 549 | /* |
550 | * 'httpEncryption()' - Set the required encryption on the link. | |
551 | */ | |
552 | ||
553 | int /* O - -1 on error, 0 on success */ | |
e6b1a6a9 | 554 | httpEncryption(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 555 | http_encryption_t e) /* I - New encryption preference */ |
556 | { | |
e07d4801 | 557 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", http, e)); |
ef416fc2 | 558 | |
559 | #ifdef HAVE_SSL | |
560 | if (!http) | |
561 | return (0); | |
562 | ||
d3d89474 MS |
563 | if (http->mode == _HTTP_MODE_CLIENT) |
564 | { | |
565 | http->encryption = e; | |
ef416fc2 | 566 | |
d3d89474 MS |
567 | if ((http->encryption == HTTP_ENCRYPTION_ALWAYS && !http->tls) || |
568 | (http->encryption == HTTP_ENCRYPTION_NEVER && http->tls)) | |
569 | return (httpReconnect2(http, 30000, NULL)); | |
570 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) | |
571 | return (http_tls_upgrade(http)); | |
572 | else | |
573 | return (0); | |
574 | } | |
ef416fc2 | 575 | else |
d3d89474 MS |
576 | { |
577 | if (e == HTTP_ENCRYPTION_NEVER && http->tls) | |
578 | return (-1); | |
579 | ||
580 | http->encryption = e; | |
581 | if (e != HTTP_ENCRYPTION_IF_REQUESTED && !http->tls) | |
582 | return (http_tls_start(http)); | |
583 | else | |
584 | return (0); | |
585 | } | |
ef416fc2 | 586 | #else |
cb7f98ee | 587 | if (e == HTTP_ENCRYPTION_ALWAYS || e == HTTP_ENCRYPTION_REQUIRED) |
ef416fc2 | 588 | return (-1); |
589 | else | |
590 | return (0); | |
591 | #endif /* HAVE_SSL */ | |
592 | } | |
593 | ||
594 | ||
ecdc0628 | 595 | /* |
596 | * 'httpError()' - Get the last error on a connection. | |
597 | */ | |
598 | ||
599 | int /* O - Error code (errno) value */ | |
e6b1a6a9 | 600 | httpError(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 601 | { |
602 | if (http) | |
603 | return (http->error); | |
604 | else | |
605 | return (EINVAL); | |
606 | } | |
607 | ||
608 | ||
48bd1142 MS |
609 | /* |
610 | * 'httpFieldValue()' - Return the HTTP field enumeration value for a field | |
611 | * name. | |
612 | */ | |
613 | ||
614 | http_field_t /* O - Field index */ | |
615 | httpFieldValue(const char *name) /* I - String name */ | |
616 | { | |
617 | int i; /* Looping var */ | |
618 | ||
619 | ||
620 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
621 | if (!_cups_strcasecmp(name, http_fields[i])) | |
622 | return ((http_field_t)i); | |
623 | ||
624 | return (HTTP_FIELD_UNKNOWN); | |
625 | } | |
626 | ||
627 | ||
ef416fc2 | 628 | /* |
629 | * 'httpFlush()' - Flush data from a HTTP connection. | |
630 | */ | |
631 | ||
632 | void | |
e6b1a6a9 | 633 | httpFlush(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 634 | { |
f8b3a85b MS |
635 | char buffer[8192]; /* Junk buffer */ |
636 | int blocking; /* To block or not to block */ | |
637 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 638 | |
639 | ||
f11a948a | 640 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
48bd1142 | 641 | httpStateString(http->state))); |
ef416fc2 | 642 | |
c1420c87 MS |
643 | /* |
644 | * Nothing to do if we are in the "waiting" state... | |
645 | */ | |
646 | ||
647 | if (http->state == HTTP_STATE_WAITING) | |
648 | return; | |
649 | ||
fa73b229 | 650 | /* |
651 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
652 | */ | |
653 | ||
654 | blocking = http->blocking; | |
655 | http->blocking = 0; | |
656 | ||
657 | /* | |
658 | * Read any data we can... | |
659 | */ | |
660 | ||
f8b3a85b | 661 | oldstate = http->state; |
a4d04587 | 662 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 663 | |
664 | /* | |
665 | * Restore blocking and reset the connection if we didn't get all of | |
666 | * the remaining data... | |
667 | */ | |
668 | ||
669 | http->blocking = blocking; | |
670 | ||
a469f8a5 MS |
671 | if (http->state == oldstate && http->state != HTTP_STATE_WAITING && |
672 | http->fd >= 0) | |
fa73b229 | 673 | { |
674 | /* | |
675 | * Didn't get the data back, so close the current connection. | |
676 | */ | |
677 | ||
c41769ff MS |
678 | #ifdef HAVE_LIBZ |
679 | if (http->coding) | |
680 | http_content_coding_finish(http); | |
681 | #endif /* HAVE_LIBZ */ | |
682 | ||
a469f8a5 MS |
683 | DEBUG_puts("1httpFlush: Setting state to HTTP_STATE_WAITING and closing."); |
684 | ||
685 | http->state = HTTP_STATE_WAITING; | |
fa73b229 | 686 | |
687 | #ifdef HAVE_SSL | |
688 | if (http->tls) | |
2c85b752 | 689 | http_tls_stop(http); |
fa73b229 | 690 | #endif /* HAVE_SSL */ |
691 | ||
87e98392 | 692 | httpAddrClose(NULL, http->fd); |
fa73b229 | 693 | |
694 | http->fd = -1; | |
695 | } | |
ef416fc2 | 696 | } |
697 | ||
698 | ||
699 | /* | |
700 | * 'httpFlushWrite()' - Flush data in write buffer. | |
701 | * | |
f3c17241 | 702 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 703 | */ |
704 | ||
705 | int /* O - Bytes written or -1 on error */ | |
e6b1a6a9 | 706 | httpFlushWrite(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 707 | { |
7e86f2f6 | 708 | ssize_t bytes; /* Bytes written */ |
ef416fc2 | 709 | |
710 | ||
a469f8a5 | 711 | DEBUG_printf(("httpFlushWrite(http=%p) data_encoding=%d", http, |
7e86f2f6 | 712 | http ? http->data_encoding : 100)); |
ef416fc2 | 713 | |
714 | if (!http || !http->wused) | |
f8b3a85b MS |
715 | { |
716 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
717 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 718 | return (0); |
f8b3a85b | 719 | } |
ef416fc2 | 720 | |
a469f8a5 | 721 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
7e86f2f6 | 722 | bytes = http_write_chunk(http, http->wbuffer, (size_t)http->wused); |
ef416fc2 | 723 | else |
7e86f2f6 | 724 | bytes = http_write(http, http->wbuffer, (size_t)http->wused); |
ef416fc2 | 725 | |
726 | http->wused = 0; | |
727 | ||
7e86f2f6 | 728 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", (int)bytes, errno)); |
f8b3a85b | 729 | |
7e86f2f6 | 730 | return ((int)bytes); |
ef416fc2 | 731 | } |
732 | ||
733 | ||
7cf5915e MS |
734 | /* |
735 | * 'httpFreeCredentials()' - Free an array of credentials. | |
736 | */ | |
737 | ||
738 | void | |
739 | httpFreeCredentials( | |
740 | cups_array_t *credentials) /* I - Array of credentials */ | |
741 | { | |
742 | http_credential_t *credential; /* Credential */ | |
743 | ||
744 | ||
745 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
746 | credential; | |
747 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
748 | { | |
749 | cupsArrayRemove(credentials, credential); | |
750 | free((void *)credential->data); | |
751 | free(credential); | |
752 | } | |
753 | ||
754 | cupsArrayDelete(credentials); | |
755 | } | |
756 | ||
757 | ||
ef416fc2 | 758 | /* |
759 | * 'httpGet()' - Send a GET request to the server. | |
760 | */ | |
761 | ||
762 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 763 | httpGet(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 764 | const char *uri) /* I - URI to get */ |
765 | { | |
cb7f98ee | 766 | return (http_send(http, HTTP_STATE_GET, uri)); |
ef416fc2 | 767 | } |
768 | ||
769 | ||
e6b1a6a9 MS |
770 | /* |
771 | * 'httpGetActivity()' - Get the most recent activity for a connection. | |
772 | * | |
773 | * The return value is the UNIX time of the last read or write. | |
774 | * | |
775 | * @since CUPS 2.0@ | |
776 | */ | |
777 | ||
778 | time_t /* O - Time of last read or write */ | |
779 | httpGetActivity(http_t *http) /* I - HTTP connection */ | |
780 | { | |
781 | return (http ? http->activity : 0); | |
782 | } | |
783 | ||
784 | ||
6961465f MS |
785 | /* |
786 | * 'httpGetAuthString()' - Get the current authorization string. | |
787 | * | |
788 | * The authorization string is set by cupsDoAuthentication() and | |
789 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
790 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
791 | * value. | |
792 | * | |
793 | * @since CUPS 1.3/OS X 10.5@ | |
794 | */ | |
795 | ||
796 | char * /* O - Authorization string */ | |
e6b1a6a9 | 797 | httpGetAuthString(http_t *http) /* I - HTTP connection */ |
6961465f MS |
798 | { |
799 | if (http) | |
800 | return (http->authstring); | |
801 | else | |
802 | return (NULL); | |
803 | } | |
804 | ||
805 | ||
806 | /* | |
807 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
808 | * | |
809 | * @since CUPS 1.2/OS X 10.5@ | |
810 | */ | |
811 | ||
812 | int /* O - 1 if blocking, 0 if non-blocking */ | |
e6b1a6a9 | 813 | httpGetBlocking(http_t *http) /* I - HTTP connection */ |
6961465f MS |
814 | { |
815 | return (http ? http->blocking : 0); | |
816 | } | |
817 | ||
818 | ||
a469f8a5 MS |
819 | /* |
820 | * 'httpGetContentEncoding()' - Get a common content encoding, if any, between | |
821 | * the client and server. | |
822 | * | |
823 | * This function uses the value of the Accepts-Encoding HTTP header and must be | |
824 | * called after receiving a response from the server or a request from the | |
825 | * client. The value returned can be use in subsequent requests (for clients) | |
826 | * or in the response (for servers) in order to compress the content stream. | |
827 | * | |
9c0e8e5d | 828 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
829 | */ |
830 | ||
831 | const char * /* O - Content-Coding value or | |
832 | @code NULL@ for the identity | |
833 | coding. */ | |
2c85b752 | 834 | httpGetContentEncoding(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
835 | { |
836 | #ifdef HAVE_LIBZ | |
837 | if (http && http->accept_encoding) | |
838 | { | |
839 | int i; /* Looping var */ | |
840 | char temp[HTTP_MAX_VALUE], /* Copy of Accepts-Encoding value */ | |
841 | *start, /* Start of coding value */ | |
842 | *end; /* End of coding value */ | |
843 | double qvalue; /* "qvalue" for coding */ | |
844 | struct lconv *loc = localeconv(); /* Locale data */ | |
845 | static const char * const codings[] = | |
846 | { /* Supported content codings */ | |
847 | "deflate", | |
848 | "gzip", | |
849 | "x-deflate", | |
850 | "x-gzip" | |
851 | }; | |
852 | ||
853 | strlcpy(temp, http->accept_encoding, sizeof(temp)); | |
854 | ||
855 | for (start = temp; *start; start = end) | |
856 | { | |
857 | /* | |
858 | * Find the end of the coding name... | |
859 | */ | |
860 | ||
861 | qvalue = 1.0; | |
862 | end = start; | |
863 | while (*end && *end != ';' && *end != ',' && !isspace(*end & 255)) | |
864 | end ++; | |
865 | ||
866 | if (*end == ';') | |
867 | { | |
868 | /* | |
869 | * Grab the qvalue as needed... | |
870 | */ | |
871 | ||
872 | if (!strncmp(end, ";q=", 3)) | |
873 | qvalue = _cupsStrScand(end + 3, NULL, loc); | |
874 | ||
875 | /* | |
876 | * Skip past all attributes... | |
877 | */ | |
878 | ||
879 | *end++ = '\0'; | |
880 | while (*end && *end != ',' && !isspace(*end & 255)) | |
881 | end ++; | |
882 | } | |
883 | else if (*end) | |
884 | *end++ = '\0'; | |
885 | ||
886 | while (*end && isspace(*end & 255)) | |
887 | end ++; | |
888 | ||
889 | /* | |
890 | * Check value if it matches something we support... | |
891 | */ | |
892 | ||
893 | if (qvalue <= 0.0) | |
894 | continue; | |
895 | ||
896 | for (i = 0; i < (int)(sizeof(codings) / sizeof(codings[0])); i ++) | |
897 | if (!strcmp(start, codings[i])) | |
898 | return (codings[i]); | |
899 | } | |
900 | } | |
901 | #endif /* HAVE_LIBZ */ | |
902 | ||
903 | return (NULL); | |
904 | } | |
905 | ||
906 | ||
ecdc0628 | 907 | /* |
908 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 909 | * |
f3c17241 | 910 | * @since CUPS 1.1.19/OS X 10.3@ |
ecdc0628 | 911 | */ |
912 | ||
913 | const char * /* O - Cookie data or NULL */ | |
914 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
915 | { | |
916 | return (http ? http->cookie : NULL); | |
917 | } | |
918 | ||
919 | ||
5ec1fd3d MS |
920 | /* |
921 | * 'httpGetEncryption()' - Get the current encryption mode of a connection. | |
922 | * | |
923 | * This function returns the encryption mode for the connection. Use the | |
924 | * @link httpIsEncrypted@ function to determine whether a TLS session has | |
925 | * been established. | |
926 | * | |
927 | * @since CUPS 2.0@ | |
928 | */ | |
929 | ||
930 | http_encryption_t /* O - Current encryption mode */ | |
931 | httpGetEncryption(http_t *http) /* I - HTTP connection */ | |
932 | { | |
933 | return (http ? http->encryption : HTTP_ENCRYPTION_IF_REQUESTED); | |
934 | } | |
935 | ||
936 | ||
a469f8a5 MS |
937 | /* |
938 | * 'httpGetExpect()' - Get the value of the Expect header, if any. | |
939 | * | |
940 | * Returns @code HTTP_STATUS_NONE@ if there is no Expect header, otherwise | |
941 | * returns the expected HTTP status code, typically @code HTTP_STATUS_CONTINUE@. | |
942 | * | |
9c0e8e5d | 943 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
944 | */ |
945 | ||
946 | http_status_t /* O - Expect: status, if any */ | |
2c85b752 | 947 | httpGetExpect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
948 | { |
949 | if (!http) | |
950 | return (HTTP_STATUS_ERROR); | |
951 | else | |
952 | return (http->expect); | |
953 | } | |
954 | ||
955 | ||
ecdc0628 | 956 | /* |
957 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
958 | * | |
f3c17241 | 959 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 960 | */ |
961 | ||
962 | int /* O - File descriptor or -1 if none */ | |
e6b1a6a9 | 963 | httpGetFd(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 964 | { |
965 | return (http ? http->fd : -1); | |
966 | } | |
967 | ||
968 | ||
969 | /* | |
970 | * 'httpGetField()' - Get a field value from a request/response. | |
971 | */ | |
972 | ||
973 | const char * /* O - Field value */ | |
e6b1a6a9 | 974 | httpGetField(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 975 | http_field_t field) /* I - Field to get */ |
976 | { | |
977 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
978 | return (NULL); | |
a469f8a5 MS |
979 | |
980 | switch (field) | |
f7deaa1a | 981 | { |
a469f8a5 MS |
982 | case HTTP_FIELD_ACCEPT_ENCODING : |
983 | return (http->accept_encoding); | |
f7deaa1a | 984 | |
a469f8a5 MS |
985 | case HTTP_FIELD_ALLOW : |
986 | return (http->allow); | |
987 | ||
988 | case HTTP_FIELD_SERVER : | |
989 | return (http->server); | |
990 | ||
991 | case HTTP_FIELD_AUTHORIZATION : | |
992 | if (http->field_authorization) | |
993 | { | |
994 | /* | |
995 | * Special case for WWW-Authenticate: as its contents can be | |
996 | * longer than HTTP_MAX_VALUE... | |
997 | */ | |
998 | ||
999 | return (http->field_authorization); | |
1000 | } | |
1001 | ||
1002 | default : | |
1003 | return (http->fields[field]); | |
f7deaa1a | 1004 | } |
ecdc0628 | 1005 | } |
1006 | ||
1007 | ||
e6b1a6a9 MS |
1008 | /* |
1009 | * 'httpGetKeepAlive()' - Get the current Keep-Alive state of the connection. | |
1010 | * | |
1011 | * @since CUPS 2.0@ | |
1012 | */ | |
1013 | ||
1014 | http_keepalive_t /* O - Keep-Alive state */ | |
1015 | httpGetKeepAlive(http_t *http) /* I - HTTP connection */ | |
1016 | { | |
1017 | return (http ? http->keep_alive : HTTP_KEEPALIVE_OFF); | |
1018 | } | |
1019 | ||
1020 | ||
ecdc0628 | 1021 | /* |
1022 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1023 | * content-length or transfer-encoding fields. | |
1024 | * | |
1025 | * This function is deprecated and will not return lengths larger than | |
1026 | * 2^31 - 1; use httpGetLength2() instead. | |
1027 | * | |
1028 | * @deprecated@ | |
1029 | */ | |
1030 | ||
1031 | int /* O - Content length */ | |
e6b1a6a9 | 1032 | httpGetLength(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1033 | { |
1034 | /* | |
1035 | * Get the read content length and return the 32-bit value. | |
1036 | */ | |
1037 | ||
1038 | if (http) | |
1039 | { | |
1040 | httpGetLength2(http); | |
1041 | ||
1042 | return (http->_data_remaining); | |
1043 | } | |
1044 | else | |
1045 | return (-1); | |
1046 | } | |
1047 | ||
1048 | ||
1049 | /* | |
1050 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1051 | * content-length or transfer-encoding fields. | |
1052 | * | |
1053 | * This function returns the complete content length, even for | |
1054 | * content larger than 2^31 - 1. | |
1055 | * | |
f3c17241 | 1056 | * @since CUPS 1.2/OS X 10.5@ |
ecdc0628 | 1057 | */ |
1058 | ||
1059 | off_t /* O - Content length */ | |
e6b1a6a9 | 1060 | httpGetLength2(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1061 | { |
a469f8a5 MS |
1062 | off_t remaining; /* Remaining length */ |
1063 | ||
1064 | ||
f11a948a | 1065 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
48bd1142 | 1066 | httpStateString(http->state))); |
ecdc0628 | 1067 | |
1068 | if (!http) | |
1069 | return (-1); | |
1070 | ||
88f9aafc | 1071 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1072 | { |
e07d4801 | 1073 | DEBUG_puts("4httpGetLength2: chunked request!"); |
a469f8a5 | 1074 | remaining = 0; |
ecdc0628 | 1075 | } |
1076 | else | |
1077 | { | |
ecdc0628 | 1078 | /* |
1079 | * The following is a hack for HTTP servers that don't send a | |
a469f8a5 | 1080 | * Content-Length or Transfer-Encoding field... |
ecdc0628 | 1081 | * |
a469f8a5 | 1082 | * If there is no Content-Length then the connection must close |
ecdc0628 | 1083 | * after the transfer is complete... |
1084 | */ | |
1085 | ||
b86bc4cf | 1086 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1087 | { | |
1088 | /* | |
a469f8a5 MS |
1089 | * Default content length is 0 for errors and certain types of operations, |
1090 | * and 2^31-1 for other successful requests... | |
b86bc4cf | 1091 | */ |
1092 | ||
cb7f98ee | 1093 | if (http->status >= HTTP_STATUS_MULTIPLE_CHOICES || |
a469f8a5 MS |
1094 | http->state == HTTP_STATE_OPTIONS || |
1095 | (http->state == HTTP_STATE_GET && http->mode == _HTTP_MODE_SERVER) || | |
1096 | http->state == HTTP_STATE_HEAD || | |
1097 | (http->state == HTTP_STATE_PUT && http->mode == _HTTP_MODE_CLIENT) || | |
1098 | http->state == HTTP_STATE_DELETE || | |
1099 | http->state == HTTP_STATE_TRACE || | |
1100 | http->state == HTTP_STATE_CONNECT) | |
1101 | remaining = 0; | |
b86bc4cf | 1102 | else |
a469f8a5 | 1103 | remaining = 2147483647; |
b86bc4cf | 1104 | } |
a469f8a5 MS |
1105 | else if ((remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], |
1106 | NULL, 10)) < 0) | |
1107 | remaining = -1; | |
ecdc0628 | 1108 | |
e07d4801 | 1109 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
a469f8a5 | 1110 | CUPS_LLCAST remaining)); |
ecdc0628 | 1111 | } |
1112 | ||
a469f8a5 | 1113 | return (remaining); |
ecdc0628 | 1114 | } |
1115 | ||
1116 | ||
d21dc0ed MS |
1117 | /* |
1118 | * 'httpGetPending()' - Get the number of bytes that are buffered for writing. | |
1119 | * | |
1120 | * @since CUPS 2.0@ | |
1121 | */ | |
1122 | ||
1123 | size_t /* O - Number of bytes buffered */ | |
1124 | httpGetPending(http_t *http) /* I - HTTP connection */ | |
1125 | { | |
7e86f2f6 | 1126 | return (http ? (size_t)http->wused : 0); |
d21dc0ed MS |
1127 | } |
1128 | ||
1129 | ||
e6b1a6a9 MS |
1130 | /* |
1131 | * 'httpGetReady()' - Get the number of bytes that can be read without blocking. | |
1132 | * | |
1133 | * @since CUPS 2.0@ | |
1134 | */ | |
1135 | ||
1136 | size_t /* O - Number of bytes available */ | |
1137 | httpGetReady(http_t *http) /* I - HTTP connection */ | |
1138 | { | |
1139 | if (!http) | |
1140 | return (0); | |
1141 | else if (http->used > 0) | |
7e86f2f6 | 1142 | return ((size_t)http->used); |
e6b1a6a9 MS |
1143 | #ifdef HAVE_SSL |
1144 | else if (http->tls) | |
724e1819 | 1145 | return (http_tls_pending(http)); |
e6b1a6a9 MS |
1146 | #endif /* HAVE_SSL */ |
1147 | ||
1148 | return (0); | |
1149 | } | |
1150 | ||
1151 | ||
5ec1fd3d MS |
1152 | /* |
1153 | * 'httpGetRemaining()' - Get the number of remaining bytes in the message | |
1154 | * body or current chunk. | |
1155 | * | |
1156 | * The @link httpIsChunked@ function can be used to determine whether the | |
1157 | * message body is chunked or fixed-length. | |
1158 | * | |
1159 | * @since CUPS 2.0@ | |
1160 | */ | |
1161 | ||
1162 | size_t /* O - Remaining bytes */ | |
1163 | httpGetRemaining(http_t *http) /* I - HTTP connection */ | |
1164 | { | |
7e86f2f6 | 1165 | return (http ? (size_t)http->data_remaining : 0); |
5ec1fd3d MS |
1166 | } |
1167 | ||
1168 | ||
ef416fc2 | 1169 | /* |
1170 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1171 | */ | |
1172 | ||
1173 | char * /* O - Line or NULL */ | |
1174 | httpGets(char *line, /* I - Line to read into */ | |
1175 | int length, /* I - Max length of buffer */ | |
e6b1a6a9 | 1176 | http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1177 | { |
7e86f2f6 MS |
1178 | char *lineptr, /* Pointer into line */ |
1179 | *lineend, /* End of line */ | |
1180 | *bufptr, /* Pointer into input buffer */ | |
1181 | *bufend; /* Pointer to end of buffer */ | |
1182 | ssize_t bytes; /* Number of bytes read */ | |
1183 | int eol; /* End-of-line? */ | |
ef416fc2 | 1184 | |
1185 | ||
e07d4801 | 1186 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1187 | |
0fa6c7fa | 1188 | if (!http || !line || length <= 1) |
ef416fc2 | 1189 | return (NULL); |
1190 | ||
1191 | /* | |
1192 | * Read a line from the buffer... | |
1193 | */ | |
f11a948a MS |
1194 | |
1195 | http->error = 0; | |
1196 | lineptr = line; | |
1197 | lineend = line + length - 1; | |
1198 | eol = 0; | |
ef416fc2 | 1199 | |
1200 | while (lineptr < lineend) | |
1201 | { | |
1202 | /* | |
1203 | * Pre-load the buffer as needed... | |
1204 | */ | |
1205 | ||
1206 | #ifdef WIN32 | |
1207 | WSASetLastError(0); | |
1208 | #else | |
1209 | errno = 0; | |
1210 | #endif /* WIN32 */ | |
1211 | ||
1212 | while (http->used == 0) | |
1213 | { | |
1214 | /* | |
1215 | * No newline; see if there is more data to be read... | |
1216 | */ | |
1217 | ||
85dda01c | 1218 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1219 | { |
f228370c MS |
1220 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1221 | continue; | |
1222 | ||
e07d4801 | 1223 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1224 | #ifdef WIN32 |
1225 | http->error = WSAETIMEDOUT; | |
1226 | #else | |
89d46774 | 1227 | http->error = ETIMEDOUT; |
b86bc4cf | 1228 | #endif /* WIN32 */ |
ef416fc2 | 1229 | return (NULL); |
89d46774 | 1230 | } |
ef416fc2 | 1231 | |
7e86f2f6 | 1232 | bytes = http_read(http, http->buffer + http->used, (size_t)(HTTP_MAX_BUFFER - http->used)); |
ef416fc2 | 1233 | |
7e86f2f6 | 1234 | DEBUG_printf(("4httpGets: read " CUPS_LLFMT " bytes.", CUPS_LLCAST bytes)); |
12f89d24 | 1235 | |
ef416fc2 | 1236 | if (bytes < 0) |
1237 | { | |
1238 | /* | |
1239 | * Nope, can't get a line this time... | |
1240 | */ | |
1241 | ||
1242 | #ifdef WIN32 | |
cc754834 MS |
1243 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1244 | ||
10d09e33 | 1245 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1246 | continue; |
10d09e33 MS |
1247 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1248 | { | |
1249 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1250 | continue; | |
1251 | ||
1252 | http->error = WSAGetLastError(); | |
1253 | } | |
cc754834 | 1254 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1255 | { |
1256 | http->error = WSAGetLastError(); | |
1257 | continue; | |
1258 | } | |
1259 | ||
ef416fc2 | 1260 | #else |
e07d4801 | 1261 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1262 | |
10d09e33 | 1263 | if (errno == EINTR) |
ef416fc2 | 1264 | continue; |
10d09e33 MS |
1265 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1266 | { | |
1267 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1268 | continue; | |
1269 | else if (!http->timeout_cb && errno == EAGAIN) | |
1270 | continue; | |
1271 | ||
1272 | http->error = errno; | |
1273 | } | |
ef416fc2 | 1274 | else if (errno != http->error) |
1275 | { | |
1276 | http->error = errno; | |
1277 | continue; | |
1278 | } | |
1279 | #endif /* WIN32 */ | |
1280 | ||
1281 | return (NULL); | |
1282 | } | |
1283 | else if (bytes == 0) | |
1284 | { | |
1285 | http->error = EPIPE; | |
1286 | ||
1287 | return (NULL); | |
1288 | } | |
1289 | ||
1290 | /* | |
1291 | * Yup, update the amount used... | |
1292 | */ | |
1293 | ||
7e86f2f6 | 1294 | http->used += (int)bytes; |
ef416fc2 | 1295 | } |
1296 | ||
1297 | /* | |
1298 | * Now copy as much of the current line as possible... | |
1299 | */ | |
1300 | ||
1301 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1302 | lineptr < lineend && bufptr < bufend;) | |
1303 | { | |
1304 | if (*bufptr == 0x0a) | |
1305 | { | |
1306 | eol = 1; | |
1307 | bufptr ++; | |
1308 | break; | |
1309 | } | |
1310 | else if (*bufptr == 0x0d) | |
1311 | bufptr ++; | |
1312 | else | |
1313 | *lineptr++ = *bufptr++; | |
1314 | } | |
1315 | ||
b86bc4cf | 1316 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1317 | if (http->used > 0) |
07623986 | 1318 | memmove(http->buffer, bufptr, (size_t)http->used); |
ef416fc2 | 1319 | |
1320 | if (eol) | |
1321 | { | |
1322 | /* | |
1323 | * End of line... | |
1324 | */ | |
1325 | ||
1326 | http->activity = time(NULL); | |
1327 | ||
1328 | *lineptr = '\0'; | |
ef55b745 | 1329 | |
e07d4801 | 1330 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1331 | |
1332 | return (line); | |
1333 | } | |
1334 | } | |
1335 | ||
e07d4801 | 1336 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1337 | |
1338 | return (NULL); | |
1339 | } | |
1340 | ||
1341 | ||
a2326b5b MS |
1342 | /* |
1343 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1344 | */ | |
1345 | ||
1346 | http_state_t /* O - HTTP state */ | |
e6b1a6a9 | 1347 | httpGetState(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1348 | { |
a469f8a5 | 1349 | return (http ? http->state : HTTP_STATE_ERROR); |
a2326b5b MS |
1350 | } |
1351 | ||
1352 | ||
1353 | /* | |
1354 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1355 | * | |
f3c17241 | 1356 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1357 | */ |
1358 | ||
1359 | http_status_t /* O - HTTP status */ | |
e6b1a6a9 | 1360 | httpGetStatus(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1361 | { |
cb7f98ee | 1362 | return (http ? http->status : HTTP_STATUS_ERROR); |
a2326b5b MS |
1363 | } |
1364 | ||
1365 | ||
1366 | /* | |
1367 | * 'httpGetSubField()' - Get a sub-field value. | |
1368 | * | |
1369 | * @deprecated@ | |
1370 | */ | |
1371 | ||
1372 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1373 | httpGetSubField(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1374 | http_field_t field, /* I - Field index */ |
1375 | const char *name, /* I - Name of sub-field */ | |
1376 | char *value) /* O - Value string */ | |
1377 | { | |
1378 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1379 | } | |
1380 | ||
1381 | ||
1382 | /* | |
1383 | * 'httpGetSubField2()' - Get a sub-field value. | |
1384 | * | |
f3c17241 | 1385 | * @since CUPS 1.2/OS X 10.5@ |
a2326b5b MS |
1386 | */ |
1387 | ||
1388 | char * /* O - Value or NULL */ | |
e6b1a6a9 | 1389 | httpGetSubField2(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1390 | http_field_t field, /* I - Field index */ |
1391 | const char *name, /* I - Name of sub-field */ | |
1392 | char *value, /* O - Value string */ | |
1393 | int valuelen) /* I - Size of value buffer */ | |
1394 | { | |
1395 | const char *fptr; /* Pointer into field */ | |
1396 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1397 | *ptr, /* Pointer into string buffer */ | |
1398 | *end; /* End of value buffer */ | |
1399 | ||
1400 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " | |
1401 | "valuelen=%d)", http, field, name, value, valuelen)); | |
1402 | ||
1403 | if (!http || !name || !value || valuelen < 2 || | |
1404 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1405 | return (NULL); | |
1406 | ||
1407 | end = value + valuelen - 1; | |
1408 | ||
1409 | for (fptr = http->fields[field]; *fptr;) | |
1410 | { | |
1411 | /* | |
1412 | * Skip leading whitespace... | |
1413 | */ | |
1414 | ||
1415 | while (_cups_isspace(*fptr)) | |
1416 | fptr ++; | |
1417 | ||
1418 | if (*fptr == ',') | |
1419 | { | |
1420 | fptr ++; | |
1421 | continue; | |
1422 | } | |
1423 | ||
1424 | /* | |
1425 | * Get the sub-field name... | |
1426 | */ | |
1427 | ||
1428 | for (ptr = temp; | |
1429 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1430 | ptr < (temp + sizeof(temp) - 1); | |
1431 | *ptr++ = *fptr++); | |
1432 | ||
1433 | *ptr = '\0'; | |
1434 | ||
1435 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1436 | ||
1437 | /* | |
1438 | * Skip trailing chars up to the '='... | |
1439 | */ | |
1440 | ||
1441 | while (_cups_isspace(*fptr)) | |
1442 | fptr ++; | |
1443 | ||
1444 | if (!*fptr) | |
1445 | break; | |
1446 | ||
1447 | if (*fptr != '=') | |
1448 | continue; | |
1449 | ||
1450 | /* | |
1451 | * Skip = and leading whitespace... | |
1452 | */ | |
1453 | ||
1454 | fptr ++; | |
1455 | ||
1456 | while (_cups_isspace(*fptr)) | |
1457 | fptr ++; | |
1458 | ||
1459 | if (*fptr == '\"') | |
1460 | { | |
1461 | /* | |
1462 | * Read quoted string... | |
1463 | */ | |
1464 | ||
1465 | for (ptr = value, fptr ++; | |
1466 | *fptr && *fptr != '\"' && ptr < end; | |
1467 | *ptr++ = *fptr++); | |
1468 | ||
1469 | *ptr = '\0'; | |
1470 | ||
1471 | while (*fptr && *fptr != '\"') | |
1472 | fptr ++; | |
1473 | ||
1474 | if (*fptr) | |
1475 | fptr ++; | |
1476 | } | |
1477 | else | |
1478 | { | |
1479 | /* | |
1480 | * Read unquoted string... | |
1481 | */ | |
1482 | ||
1483 | for (ptr = value; | |
1484 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1485 | *ptr++ = *fptr++); | |
1486 | ||
1487 | *ptr = '\0'; | |
1488 | ||
1489 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1490 | fptr ++; | |
1491 | } | |
1492 | ||
1493 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1494 | ||
1495 | /* | |
1496 | * See if this is the one... | |
1497 | */ | |
1498 | ||
1499 | if (!strcmp(name, temp)) | |
1500 | { | |
1501 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1502 | return (value); | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | value[0] = '\0'; | |
1507 | ||
1508 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1509 | ||
1510 | return (NULL); | |
1511 | } | |
1512 | ||
1513 | ||
1514 | /* | |
1515 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1516 | */ | |
1517 | ||
1518 | http_version_t /* O - Version number */ | |
e6b1a6a9 | 1519 | httpGetVersion(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1520 | { |
a469f8a5 | 1521 | return (http ? http->version : HTTP_VERSION_1_0); |
a2326b5b MS |
1522 | } |
1523 | ||
1524 | ||
ef416fc2 | 1525 | /* |
1526 | * 'httpHead()' - Send a HEAD request to the server. | |
1527 | */ | |
1528 | ||
1529 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1530 | httpHead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1531 | const char *uri) /* I - URI for head */ |
1532 | { | |
e07d4801 | 1533 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1534 | return (http_send(http, HTTP_STATE_HEAD, uri)); |
ef416fc2 | 1535 | } |
1536 | ||
1537 | ||
1538 | /* | |
1539 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1540 | * default HTTP proxy (if any). | |
1541 | */ | |
1542 | ||
1543 | void | |
1544 | httpInitialize(void) | |
1545 | { | |
6d2f911b MS |
1546 | static int initialized = 0; /* Have we been called before? */ |
1547 | #ifdef WIN32 | |
1548 | WSADATA winsockdata; /* WinSock data */ | |
1549 | #endif /* WIN32 */ | |
ef416fc2 | 1550 | |
ef416fc2 | 1551 | |
6d2f911b MS |
1552 | _cupsGlobalLock(); |
1553 | if (initialized) | |
1554 | { | |
1555 | _cupsGlobalUnlock(); | |
1556 | return; | |
1557 | } | |
1558 | ||
1559 | #ifdef WIN32 | |
c7017ecc | 1560 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1561 | |
fa73b229 | 1562 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1563 | /* |
1564 | * Ignore SIGPIPE signals... | |
1565 | */ | |
1566 | ||
fa73b229 | 1567 | # ifdef HAVE_SIGSET |
1568 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1569 | |
fa73b229 | 1570 | # elif defined(HAVE_SIGACTION) |
1571 | struct sigaction action; /* POSIX sigaction data */ | |
1572 | ||
1573 | ||
ef416fc2 | 1574 | memset(&action, 0, sizeof(action)); |
1575 | action.sa_handler = SIG_IGN; | |
1576 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1577 | |
fa73b229 | 1578 | # else |
ef416fc2 | 1579 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1580 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1581 | #endif /* WIN32 */ |
1582 | ||
2c85b752 MS |
1583 | # ifdef HAVE_SSL |
1584 | http_tls_initialize(); | |
1585 | # endif /* HAVE_SSL */ | |
6d2f911b MS |
1586 | |
1587 | initialized = 1; | |
1588 | _cupsGlobalUnlock(); | |
ef416fc2 | 1589 | } |
1590 | ||
1591 | ||
5ec1fd3d MS |
1592 | /* |
1593 | * 'httpIsChunked()' - Report whether a message body is chunked. | |
1594 | * | |
1595 | * This function returns non-zero if the message body is composed of | |
1596 | * variable-length chunks. | |
1597 | * | |
1598 | * @since CUPS 2.0@ | |
1599 | */ | |
1600 | ||
1601 | int /* O - 1 if chunked, 0 if not */ | |
1602 | httpIsChunked(http_t *http) /* I - HTTP connection */ | |
1603 | { | |
1604 | return (http ? http->data_encoding == HTTP_ENCODING_CHUNKED : 0); | |
1605 | } | |
1606 | ||
1607 | ||
1608 | /* | |
1609 | * 'httpIsEncrypted()' - Report whether a connection is encrypted. | |
1610 | * | |
1611 | * This function returns non-zero if the connection is currently encrypted. | |
1612 | * | |
1613 | * @since CUPS 2.0@ | |
1614 | */ | |
1615 | ||
1616 | int /* O - 1 if encrypted, 0 if not */ | |
1617 | httpIsEncrypted(http_t *http) /* I - HTTP connection */ | |
1618 | { | |
1619 | return (http ? http->tls != NULL : 0); | |
1620 | } | |
1621 | ||
1622 | ||
ef416fc2 | 1623 | /* |
1624 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1625 | */ | |
1626 | ||
1627 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1628 | httpOptions(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1629 | const char *uri) /* I - URI for options */ |
1630 | { | |
cb7f98ee | 1631 | return (http_send(http, HTTP_STATE_OPTIONS, uri)); |
ef416fc2 | 1632 | } |
1633 | ||
1634 | ||
6d2f911b | 1635 | /* |
a469f8a5 | 1636 | * 'httpPeek()' - Peek at data from a HTTP connection. |
6d2f911b MS |
1637 | * |
1638 | * This function copies available data from the given HTTP connection, reading | |
1639 | * a buffer as needed. The data is still available for reading using | |
1640 | * @link httpRead@ or @link httpRead2@. | |
1641 | * | |
1642 | * For non-blocking connections the usual timeouts apply. | |
a469f8a5 | 1643 | * |
9c0e8e5d | 1644 | * @since CUPS 1.7/OS X 10.9@ |
6d2f911b MS |
1645 | */ |
1646 | ||
1647 | ssize_t /* O - Number of bytes copied */ | |
e6b1a6a9 | 1648 | httpPeek(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
1649 | char *buffer, /* I - Buffer for data */ |
1650 | size_t length) /* I - Maximum number of bytes */ | |
6d2f911b MS |
1651 | { |
1652 | ssize_t bytes; /* Bytes read */ | |
1653 | char len[32]; /* Length string */ | |
1654 | ||
1655 | ||
a469f8a5 | 1656 | DEBUG_printf(("httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
6d2f911b MS |
1657 | http, buffer, CUPS_LLCAST length)); |
1658 | ||
1659 | if (http == NULL || buffer == NULL) | |
1660 | return (-1); | |
1661 | ||
1662 | http->activity = time(NULL); | |
1663 | http->error = 0; | |
1664 | ||
1665 | if (length <= 0) | |
1666 | return (0); | |
1667 | ||
a469f8a5 | 1668 | if (http->data_encoding == HTTP_ENCODING_CHUNKED && |
6d2f911b MS |
1669 | http->data_remaining <= 0) |
1670 | { | |
a469f8a5 | 1671 | DEBUG_puts("2httpPeek: Getting chunk length..."); |
6d2f911b MS |
1672 | |
1673 | if (httpGets(len, sizeof(len), http) == NULL) | |
1674 | { | |
a469f8a5 | 1675 | DEBUG_puts("1httpPeek: Could not get length!"); |
6d2f911b MS |
1676 | return (0); |
1677 | } | |
1678 | ||
db8b865d MS |
1679 | if (!len[0]) |
1680 | { | |
1681 | DEBUG_puts("1httpPeek: Blank chunk length, trying again..."); | |
1682 | if (!httpGets(len, sizeof(len), http)) | |
1683 | { | |
1684 | DEBUG_puts("1httpPeek: Could not get chunk length."); | |
1685 | return (0); | |
1686 | } | |
1687 | } | |
1688 | ||
6d2f911b | 1689 | http->data_remaining = strtoll(len, NULL, 16); |
db8b865d | 1690 | |
6d2f911b MS |
1691 | if (http->data_remaining < 0) |
1692 | { | |
a469f8a5 | 1693 | DEBUG_puts("1httpPeek: Negative chunk length!"); |
6d2f911b MS |
1694 | return (0); |
1695 | } | |
1696 | } | |
1697 | ||
a469f8a5 | 1698 | DEBUG_printf(("2httpPeek: data_remaining=" CUPS_LLFMT, |
6d2f911b MS |
1699 | CUPS_LLCAST http->data_remaining)); |
1700 | ||
0fa6c7fa | 1701 | if (http->data_remaining <= 0 && http->data_encoding != HTTP_ENCODING_FIELDS) |
6d2f911b MS |
1702 | { |
1703 | /* | |
1704 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1705 | * data, go idle... | |
1706 | */ | |
1707 | ||
c41769ff | 1708 | #ifdef HAVE_LIBZ |
d423d83d | 1709 | if (http->coding >= _HTTP_CODING_GUNZIP) |
c41769ff MS |
1710 | http_content_coding_finish(http); |
1711 | #endif /* HAVE_LIBZ */ | |
1712 | ||
0fa6c7fa MS |
1713 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
1714 | httpGets(len, sizeof(len), http); | |
1715 | ||
a469f8a5 | 1716 | if (http->state == HTTP_STATE_POST_RECV) |
6d2f911b MS |
1717 | http->state ++; |
1718 | else | |
cb7f98ee | 1719 | http->state = HTTP_STATE_STATUS; |
a469f8a5 MS |
1720 | |
1721 | DEBUG_printf(("1httpPeek: 0-length chunk, set state to %s.", | |
48bd1142 | 1722 | httpStateString(http->state))); |
6d2f911b MS |
1723 | |
1724 | /* | |
1725 | * Prevent future reads for this request... | |
1726 | */ | |
1727 | ||
a469f8a5 | 1728 | http->data_encoding = HTTP_ENCODING_FIELDS; |
6d2f911b MS |
1729 | |
1730 | return (0); | |
1731 | } | |
0fa6c7fa | 1732 | else if (length > (size_t)http->data_remaining) |
6d2f911b MS |
1733 | length = (size_t)http->data_remaining; |
1734 | ||
0fa6c7fa MS |
1735 | #ifdef HAVE_LIBZ |
1736 | if (http->used == 0 && | |
d423d83d MS |
1737 | (http->coding == _HTTP_CODING_IDENTITY || |
1738 | (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in == 0))) | |
0fa6c7fa | 1739 | #else |
6d2f911b | 1740 | if (http->used == 0) |
0fa6c7fa | 1741 | #endif /* HAVE_LIBZ */ |
6d2f911b MS |
1742 | { |
1743 | /* | |
1744 | * Buffer small reads for better performance... | |
1745 | */ | |
1746 | ||
3e7fe0ca MS |
1747 | ssize_t buflen; /* Length of read for buffer */ |
1748 | ||
f228370c MS |
1749 | if (!http->blocking) |
1750 | { | |
85dda01c | 1751 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1752 | { |
1753 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1754 | continue; | |
1755 | ||
1756 | return (0); | |
1757 | } | |
1758 | } | |
6d2f911b | 1759 | |
7e86f2f6 | 1760 | if ((size_t)http->data_remaining > sizeof(http->buffer)) |
3e7fe0ca | 1761 | buflen = sizeof(http->buffer); |
6d2f911b | 1762 | else |
7e86f2f6 | 1763 | buflen = (ssize_t)http->data_remaining; |
3e7fe0ca | 1764 | |
a469f8a5 | 1765 | DEBUG_printf(("2httpPeek: Reading %d bytes into buffer.", (int)buflen)); |
7e86f2f6 | 1766 | bytes = http_read(http, http->buffer, (size_t)buflen); |
3e7fe0ca | 1767 | |
a469f8a5 | 1768 | DEBUG_printf(("2httpPeek: Read " CUPS_LLFMT " bytes into buffer.", |
3e7fe0ca | 1769 | CUPS_LLCAST bytes)); |
db8b865d MS |
1770 | if (bytes > 0) |
1771 | { | |
3e7fe0ca | 1772 | #ifdef DEBUG |
db8b865d | 1773 | http_debug_hex("httpPeek", http->buffer, (int)bytes); |
3e7fe0ca MS |
1774 | #endif /* DEBUG */ |
1775 | ||
7e86f2f6 | 1776 | http->used = (int)bytes; |
db8b865d | 1777 | } |
6d2f911b MS |
1778 | } |
1779 | ||
c1420c87 | 1780 | #ifdef HAVE_LIBZ |
d423d83d | 1781 | if (http->coding >= _HTTP_CODING_GUNZIP) |
c1420c87 | 1782 | { |
db8b865d | 1783 | # ifdef HAVE_INFLATECOPY |
c1420c87 | 1784 | int zerr; /* Decompressor error */ |
c1420c87 MS |
1785 | z_stream stream; /* Copy of decompressor stream */ |
1786 | ||
0fa6c7fa MS |
1787 | if (http->used > 0 && http->stream.avail_in < HTTP_MAX_BUFFER) |
1788 | { | |
1789 | size_t buflen = buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
1790 | /* Number of bytes to copy */ | |
1791 | ||
1792 | if (http->stream.avail_in > 0 && | |
1793 | http->stream.next_in > http->dbuffer) | |
1794 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
1795 | ||
1796 | http->stream.next_in = http->dbuffer; | |
1797 | ||
7e86f2f6 MS |
1798 | if (buflen > (size_t)http->data_remaining) |
1799 | buflen = (size_t)http->data_remaining; | |
0fa6c7fa | 1800 | |
7e86f2f6 MS |
1801 | if (buflen > (size_t)http->used) |
1802 | buflen = (size_t)http->used; | |
0fa6c7fa MS |
1803 | |
1804 | DEBUG_printf(("1httpPeek: Copying %d more bytes of data into " | |
1805 | "decompression buffer.", (int)buflen)); | |
1806 | ||
1807 | memcpy(http->dbuffer + http->stream.avail_in, http->buffer, buflen); | |
1808 | http->stream.avail_in += buflen; | |
1809 | http->used -= buflen; | |
1810 | http->data_remaining -= buflen; | |
1811 | ||
1812 | if (http->used > 0) | |
07623986 | 1813 | memmove(http->buffer, http->buffer + buflen, (size_t)http->used); |
0fa6c7fa | 1814 | } |
c1420c87 MS |
1815 | |
1816 | DEBUG_printf(("2httpPeek: length=%d, avail_in=%d", (int)length, | |
0fa6c7fa | 1817 | (int)http->stream.avail_in)); |
c1420c87 MS |
1818 | |
1819 | if (inflateCopy(&stream, &(http->stream)) != Z_OK) | |
1820 | { | |
1821 | DEBUG_puts("2httpPeek: Unable to copy decompressor stream."); | |
1822 | http->error = ENOMEM; | |
1823 | return (-1); | |
1824 | } | |
1825 | ||
c1420c87 | 1826 | stream.next_out = (Bytef *)buffer; |
7e86f2f6 | 1827 | stream.avail_out = (uInt)length; |
c1420c87 MS |
1828 | |
1829 | zerr = inflate(&stream, Z_SYNC_FLUSH); | |
1830 | inflateEnd(&stream); | |
1831 | ||
1832 | if (zerr < Z_OK) | |
1833 | { | |
1834 | DEBUG_printf(("2httpPeek: zerr=%d", zerr)); | |
0fa6c7fa | 1835 | #ifdef DEBUG |
7e86f2f6 | 1836 | http_debug_hex("2httpPeek", (char *)http->dbuffer, (int)http->stream.avail_in); |
0fa6c7fa MS |
1837 | #endif /* DEBUG */ |
1838 | ||
c1420c87 MS |
1839 | http->error = EIO; |
1840 | return (-1); | |
1841 | } | |
1842 | ||
7e86f2f6 | 1843 | bytes = (ssize_t)(length - http->stream.avail_out); |
db8b865d MS |
1844 | |
1845 | # else | |
1846 | DEBUG_puts("2httpPeek: No inflateCopy on this platform, httpPeek does not " | |
1847 | "work with compressed streams."); | |
1848 | return (-1); | |
1849 | # endif /* HAVE_INFLATECOPY */ | |
c1420c87 MS |
1850 | } |
1851 | else | |
1852 | #endif /* HAVE_LIBZ */ | |
6d2f911b MS |
1853 | if (http->used > 0) |
1854 | { | |
1855 | if (length > (size_t)http->used) | |
1856 | length = (size_t)http->used; | |
1857 | ||
1858 | bytes = (ssize_t)length; | |
1859 | ||
a469f8a5 | 1860 | DEBUG_printf(("2httpPeek: grabbing %d bytes from input buffer...", |
6d2f911b MS |
1861 | (int)bytes)); |
1862 | ||
1863 | memcpy(buffer, http->buffer, length); | |
1864 | } | |
1865 | else | |
1866 | bytes = 0; | |
1867 | ||
1868 | if (bytes < 0) | |
1869 | { | |
1870 | #ifdef WIN32 | |
cc754834 MS |
1871 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1872 | bytes = 0; | |
1873 | else | |
1874 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1875 | #else |
1876 | if (errno == EINTR || errno == EAGAIN) | |
1877 | bytes = 0; | |
1878 | else | |
1879 | http->error = errno; | |
1880 | #endif /* WIN32 */ | |
1881 | } | |
1882 | else if (bytes == 0) | |
1883 | { | |
1884 | http->error = EPIPE; | |
1885 | return (0); | |
1886 | } | |
1887 | ||
6d2f911b MS |
1888 | return (bytes); |
1889 | } | |
1890 | ||
1891 | ||
ef416fc2 | 1892 | /* |
1893 | * 'httpPost()' - Send a POST request to the server. | |
1894 | */ | |
1895 | ||
1896 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1897 | httpPost(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1898 | const char *uri) /* I - URI for post */ |
1899 | { | |
cb7f98ee | 1900 | return (http_send(http, HTTP_STATE_POST, uri)); |
ef416fc2 | 1901 | } |
1902 | ||
1903 | ||
1904 | /* | |
1905 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1906 | * |
1907 | * @private@ | |
ef416fc2 | 1908 | */ |
1909 | ||
1910 | int /* O - Number of bytes written */ | |
e6b1a6a9 | 1911 | httpPrintf(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1912 | const char *format, /* I - printf-style format string */ |
1913 | ...) /* I - Additional args as needed */ | |
1914 | { | |
7e86f2f6 | 1915 | ssize_t bytes; /* Number of bytes to write */ |
ef416fc2 | 1916 | char buf[16384]; /* Buffer for formatted string */ |
1917 | va_list ap; /* Variable argument pointer */ | |
1918 | ||
1919 | ||
e07d4801 | 1920 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1921 | |
1922 | va_start(ap, format); | |
1923 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1924 | va_end(ap); | |
1925 | ||
7e86f2f6 | 1926 | DEBUG_printf(("3httpPrintf: (" CUPS_LLFMT " bytes) %s", CUPS_LLCAST bytes, buf)); |
ef416fc2 | 1927 | |
a469f8a5 | 1928 | if (http->data_encoding == HTTP_ENCODING_FIELDS) |
7e86f2f6 | 1929 | return ((int)httpWrite2(http, buf, (size_t)bytes)); |
d09495fa | 1930 | else |
ef416fc2 | 1931 | { |
d09495fa | 1932 | if (http->wused) |
1933 | { | |
e07d4801 | 1934 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1935 | |
d09495fa | 1936 | if (httpFlushWrite(http) < 0) |
1937 | return (-1); | |
1938 | } | |
ef416fc2 | 1939 | |
7e86f2f6 | 1940 | return ((int)http_write(http, buf, (size_t)bytes)); |
d09495fa | 1941 | } |
ef416fc2 | 1942 | } |
1943 | ||
1944 | ||
1945 | /* | |
1946 | * 'httpPut()' - Send a PUT request to the server. | |
1947 | */ | |
1948 | ||
1949 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1950 | httpPut(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1951 | const char *uri) /* I - URI to put */ |
1952 | { | |
e07d4801 | 1953 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
cb7f98ee | 1954 | return (http_send(http, HTTP_STATE_PUT, uri)); |
ef416fc2 | 1955 | } |
1956 | ||
1957 | ||
1958 | /* | |
1959 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1960 | * |
1961 | * This function is deprecated. Use the httpRead2() function which can | |
1962 | * read more than 2GB of data. | |
1963 | * | |
1964 | * @deprecated@ | |
ef416fc2 | 1965 | */ |
1966 | ||
1967 | int /* O - Number of bytes read */ | |
e6b1a6a9 | 1968 | httpRead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1969 | char *buffer, /* I - Buffer for data */ |
1970 | int length) /* I - Maximum number of bytes */ | |
1971 | { | |
7e86f2f6 | 1972 | return ((int)httpRead2(http, buffer, (size_t)length)); |
a4d04587 | 1973 | } |
1974 | ||
1975 | ||
1976 | /* | |
1977 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1978 | * |
f3c17241 | 1979 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 1980 | */ |
1981 | ||
1982 | ssize_t /* O - Number of bytes read */ | |
e6b1a6a9 | 1983 | httpRead2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 1984 | char *buffer, /* I - Buffer for data */ |
1985 | size_t length) /* I - Maximum number of bytes */ | |
1986 | { | |
1987 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1988 | |
1989 | ||
db8b865d | 1990 | #ifdef HAVE_LIBZ |
a469f8a5 | 1991 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT |
0fa6c7fa | 1992 | ") coding=%d data_encoding=%d data_remaining=" CUPS_LLFMT, |
db8b865d MS |
1993 | http, buffer, CUPS_LLCAST length, |
1994 | http->coding, | |
0fa6c7fa | 1995 | http->data_encoding, CUPS_LLCAST http->data_remaining)); |
db8b865d MS |
1996 | #else |
1997 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT | |
1998 | ") data_encoding=%d data_remaining=" CUPS_LLFMT, | |
1999 | http, buffer, CUPS_LLCAST length, | |
2000 | http->data_encoding, CUPS_LLCAST http->data_remaining)); | |
2001 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2002 | |
2003 | if (http == NULL || buffer == NULL) | |
2004 | return (-1); | |
2005 | ||
2006 | http->activity = time(NULL); | |
f11a948a | 2007 | http->error = 0; |
ef416fc2 | 2008 | |
2009 | if (length <= 0) | |
2010 | return (0); | |
2011 | ||
a469f8a5 | 2012 | #ifdef HAVE_LIBZ |
d423d83d | 2013 | if (http->coding >= _HTTP_CODING_GUNZIP) |
ef416fc2 | 2014 | { |
0fa6c7fa | 2015 | do |
f228370c | 2016 | { |
0fa6c7fa | 2017 | if (http->stream.avail_in > 0) |
f228370c | 2018 | { |
0fa6c7fa | 2019 | int zerr; /* Decompressor error */ |
f228370c | 2020 | |
0fa6c7fa MS |
2021 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d", |
2022 | (int)http->stream.avail_in, (int)length)); | |
ef416fc2 | 2023 | |
0fa6c7fa | 2024 | http->stream.next_out = (Bytef *)buffer; |
7e86f2f6 | 2025 | http->stream.avail_out = (uInt)length; |
83e08001 | 2026 | |
0fa6c7fa | 2027 | if ((zerr = inflate(&(http->stream), Z_SYNC_FLUSH)) < Z_OK) |
83e08001 | 2028 | { |
0fa6c7fa | 2029 | DEBUG_printf(("2httpRead2: zerr=%d", zerr)); |
12f89d24 | 2030 | #ifdef DEBUG |
7e86f2f6 | 2031 | http_debug_hex("2httpRead2", (char *)http->dbuffer, (int)http->stream.avail_in); |
12f89d24 | 2032 | #endif /* DEBUG */ |
83e08001 | 2033 | |
0fa6c7fa MS |
2034 | http->error = EIO; |
2035 | return (-1); | |
2036 | } | |
a469f8a5 | 2037 | |
7e86f2f6 | 2038 | bytes = (ssize_t)(length - http->stream.avail_out); |
a469f8a5 | 2039 | |
0fa6c7fa MS |
2040 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d, bytes=%d", |
2041 | http->stream.avail_in, http->stream.avail_out, | |
2042 | (int)bytes)); | |
2043 | } | |
2044 | else | |
2045 | bytes = 0; | |
a469f8a5 | 2046 | |
0fa6c7fa MS |
2047 | if (bytes == 0) |
2048 | { | |
7e86f2f6 | 2049 | ssize_t buflen = HTTP_MAX_BUFFER - (ssize_t)http->stream.avail_in; |
0fa6c7fa | 2050 | /* Additional bytes for buffer */ |
a469f8a5 | 2051 | |
0fa6c7fa MS |
2052 | if (buflen > 0) |
2053 | { | |
2054 | if (http->stream.avail_in > 0 && | |
2055 | http->stream.next_in > http->dbuffer) | |
2056 | memmove(http->dbuffer, http->stream.next_in, http->stream.avail_in); | |
2057 | ||
2058 | http->stream.next_in = http->dbuffer; | |
2059 | ||
2060 | DEBUG_printf(("1httpRead2: Reading up to %d more bytes of data into " | |
2061 | "decompression buffer.", (int)buflen)); | |
2062 | ||
2063 | if (http->data_remaining > 0) | |
2064 | { | |
2065 | if (buflen > http->data_remaining) | |
7e86f2f6 | 2066 | buflen = (ssize_t)http->data_remaining; |
0fa6c7fa | 2067 | |
7e86f2f6 | 2068 | bytes = http_read_buffered(http, (char *)http->dbuffer + http->stream.avail_in, (size_t)buflen); |
0fa6c7fa MS |
2069 | } |
2070 | else if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
7e86f2f6 | 2071 | bytes = http_read_chunk(http, (char *)http->dbuffer + http->stream.avail_in, (size_t)buflen); |
0fa6c7fa MS |
2072 | else |
2073 | bytes = 0; | |
2074 | ||
2075 | if (bytes < 0) | |
2076 | return (bytes); | |
2077 | else if (bytes == 0) | |
2078 | break; | |
2079 | ||
db8b865d MS |
2080 | DEBUG_printf(("1httpRead2: Adding " CUPS_LLFMT " bytes to " |
2081 | "decompression buffer.", CUPS_LLCAST bytes)); | |
2082 | ||
0fa6c7fa | 2083 | http->data_remaining -= bytes; |
7e86f2f6 | 2084 | http->stream.avail_in += (uInt)bytes; |
db8b865d | 2085 | |
cb7f98ee MS |
2086 | if (http->data_remaining <= 0 && |
2087 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2088 | { | |
2089 | /* | |
2090 | * Read the trailing blank line now... | |
2091 | */ | |
2092 | ||
2093 | char len[32]; /* Length string */ | |
2094 | ||
2095 | httpGets(len, sizeof(len), http); | |
2096 | } | |
2097 | ||
db8b865d | 2098 | bytes = 0; |
0fa6c7fa MS |
2099 | } |
2100 | else | |
2101 | return (0); | |
2102 | } | |
a469f8a5 | 2103 | } |
0fa6c7fa | 2104 | while (bytes == 0); |
a469f8a5 MS |
2105 | } |
2106 | else | |
2107 | #endif /* HAVE_LIBZ */ | |
0fa6c7fa | 2108 | if (http->data_remaining == 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 2109 | { |
0fa6c7fa | 2110 | if ((bytes = http_read_chunk(http, buffer, length)) > 0) |
cb7f98ee | 2111 | { |
0fa6c7fa | 2112 | http->data_remaining -= bytes; |
cb7f98ee MS |
2113 | |
2114 | if (http->data_remaining <= 0) | |
2115 | { | |
2116 | /* | |
2117 | * Read the trailing blank line now... | |
2118 | */ | |
2119 | ||
2120 | char len[32]; /* Length string */ | |
2121 | ||
2122 | httpGets(len, sizeof(len), http); | |
2123 | } | |
2124 | } | |
ef416fc2 | 2125 | } |
0fa6c7fa | 2126 | else if (http->data_remaining <= 0) |
ef416fc2 | 2127 | { |
0fa6c7fa MS |
2128 | /* |
2129 | * No more data to read... | |
2130 | */ | |
ef416fc2 | 2131 | |
0fa6c7fa | 2132 | return (0); |
ef416fc2 | 2133 | } |
ef416fc2 | 2134 | else |
2135 | { | |
0fa6c7fa MS |
2136 | DEBUG_printf(("1httpRead2: Reading up to %d bytes into buffer.", |
2137 | (int)length)); | |
ef416fc2 | 2138 | |
db8b865d MS |
2139 | if (length > (size_t)http->data_remaining) |
2140 | length = (size_t)http->data_remaining; | |
ef416fc2 | 2141 | |
0fa6c7fa | 2142 | if ((bytes = http_read_buffered(http, buffer, length)) > 0) |
cb7f98ee | 2143 | { |
0fa6c7fa | 2144 | http->data_remaining -= bytes; |
cb7f98ee MS |
2145 | |
2146 | if (http->data_remaining <= 0 && | |
2147 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2148 | { | |
2149 | /* | |
2150 | * Read the trailing blank line now... | |
2151 | */ | |
2152 | ||
2153 | char len[32]; /* Length string */ | |
2154 | ||
2155 | httpGets(len, sizeof(len), http); | |
2156 | } | |
2157 | } | |
ef416fc2 | 2158 | } |
2159 | ||
0fa6c7fa MS |
2160 | if ( |
2161 | #ifdef HAVE_LIBZ | |
d423d83d MS |
2162 | (http->coding == _HTTP_CODING_IDENTITY || |
2163 | (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in == 0)) && | |
0fa6c7fa MS |
2164 | #endif /* HAVE_LIBZ */ |
2165 | ((http->data_remaining <= 0 && | |
2166 | http->data_encoding == HTTP_ENCODING_LENGTH) || | |
2167 | (http->data_encoding == HTTP_ENCODING_CHUNKED && bytes == 0))) | |
ef416fc2 | 2168 | { |
a469f8a5 | 2169 | #ifdef HAVE_LIBZ |
d423d83d | 2170 | if (http->coding >= _HTTP_CODING_GUNZIP) |
0fa6c7fa | 2171 | http_content_coding_finish(http); |
a469f8a5 MS |
2172 | #endif /* HAVE_LIBZ */ |
2173 | ||
0fa6c7fa MS |
2174 | if (http->state == HTTP_STATE_POST_RECV) |
2175 | http->state ++; | |
6961465f MS |
2176 | else if (http->state == HTTP_STATE_GET_SEND || |
2177 | http->state == HTTP_STATE_POST_SEND) | |
2178 | http->state = HTTP_STATE_WAITING; | |
0fa6c7fa | 2179 | else |
cb7f98ee | 2180 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 2181 | |
0fa6c7fa | 2182 | DEBUG_printf(("1httpRead2: End of content, set state to %s.", |
48bd1142 | 2183 | httpStateString(http->state))); |
ef416fc2 | 2184 | } |
2185 | ||
ef416fc2 | 2186 | return (bytes); |
2187 | } | |
2188 | ||
2189 | ||
ef416fc2 | 2190 | /* |
a469f8a5 MS |
2191 | * 'httpReadRequest()' - Read a HTTP request from a connection. |
2192 | * | |
9c0e8e5d | 2193 | * @since CUPS 1.7/OS X 10.9@ |
ef416fc2 | 2194 | */ |
2195 | ||
a469f8a5 MS |
2196 | http_state_t /* O - New state of connection */ |
2197 | httpReadRequest(http_t *http, /* I - HTTP connection */ | |
2198 | char *uri, /* I - URI buffer */ | |
2199 | size_t urilen) /* I - Size of URI buffer */ | |
dcb445bc | 2200 | { |
a469f8a5 MS |
2201 | char line[4096], /* HTTP request line */ |
2202 | *req_method, /* HTTP request method */ | |
2203 | *req_uri, /* HTTP request URI */ | |
2204 | *req_version; /* HTTP request version number string */ | |
dcb445bc MS |
2205 | |
2206 | ||
a469f8a5 MS |
2207 | /* |
2208 | * Range check input... | |
2209 | */ | |
ef416fc2 | 2210 | |
a469f8a5 MS |
2211 | DEBUG_printf(("httpReadRequest(http=%p, uri=%p, urilen=" CUPS_LLFMT ")", |
2212 | http, uri, CUPS_LLCAST urilen)); | |
ef416fc2 | 2213 | |
a469f8a5 MS |
2214 | if (uri) |
2215 | *uri = '\0'; | |
ef416fc2 | 2216 | |
a469f8a5 | 2217 | if (!http || !uri || urilen < 1) |
dcb445bc | 2218 | { |
a469f8a5 MS |
2219 | DEBUG_puts("1httpReadRequest: Bad arguments, returning HTTP_STATE_ERROR."); |
2220 | return (HTTP_STATE_ERROR); | |
dcb445bc | 2221 | } |
a469f8a5 | 2222 | else if (http->state != HTTP_STATE_WAITING) |
1ff0402e | 2223 | { |
a469f8a5 | 2224 | DEBUG_printf(("1httpReadRequest: Bad state %s, returning HTTP_STATE_ERROR.", |
48bd1142 | 2225 | httpStateString(http->state))); |
a469f8a5 | 2226 | return (HTTP_STATE_ERROR); |
1ff0402e | 2227 | } |
ef416fc2 | 2228 | |
2229 | /* | |
a469f8a5 | 2230 | * Reset state... |
ef416fc2 | 2231 | */ |
2232 | ||
a469f8a5 | 2233 | httpClearFields(http); |
ef416fc2 | 2234 | |
a469f8a5 MS |
2235 | http->activity = time(NULL); |
2236 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
2237 | http->data_remaining = 0; | |
2238 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2239 | http->status = HTTP_STATUS_OK; | |
2240 | http->version = HTTP_VERSION_1_1; | |
bd7854cb | 2241 | |
a29fd7dd | 2242 | /* |
a469f8a5 | 2243 | * Read a line from the socket... |
a29fd7dd MS |
2244 | */ |
2245 | ||
a469f8a5 MS |
2246 | if (!httpGets(line, sizeof(line), http)) |
2247 | { | |
2248 | DEBUG_puts("1httpReadRequest: Unable to read, returning HTTP_STATE_ERROR"); | |
2249 | return (HTTP_STATE_ERROR); | |
2250 | } | |
2251 | ||
2252 | if (!line[0]) | |
2253 | { | |
2254 | DEBUG_puts("1httpReadRequest: Blank line, returning HTTP_STATE_WAITING"); | |
2255 | return (HTTP_STATE_WAITING); | |
2256 | } | |
2257 | ||
2258 | DEBUG_printf(("1httpReadRequest: %s", line)); | |
2259 | ||
2260 | /* | |
2261 | * Parse it... | |
2262 | */ | |
2263 | ||
2264 | req_method = line; | |
2265 | req_uri = line; | |
2266 | ||
2267 | while (*req_uri && !isspace(*req_uri & 255)) | |
2268 | req_uri ++; | |
2269 | ||
2270 | if (!*req_uri) | |
2271 | { | |
2272 | DEBUG_puts("1httpReadRequest: No request URI."); | |
d21dc0ed | 2273 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request URI."), 1); |
a469f8a5 MS |
2274 | return (HTTP_STATE_ERROR); |
2275 | } | |
2276 | ||
2277 | *req_uri++ = '\0'; | |
2278 | ||
2279 | while (*req_uri && isspace(*req_uri & 255)) | |
2280 | req_uri ++; | |
2281 | ||
2282 | req_version = req_uri; | |
2283 | ||
2284 | while (*req_version && !isspace(*req_version & 255)) | |
2285 | req_version ++; | |
2286 | ||
2287 | if (!*req_version) | |
2288 | { | |
2289 | DEBUG_puts("1httpReadRequest: No request protocol version."); | |
d21dc0ed | 2290 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request protocol version."), 1); |
a469f8a5 MS |
2291 | return (HTTP_STATE_ERROR); |
2292 | } | |
2293 | ||
2294 | *req_version++ = '\0'; | |
2295 | ||
2296 | while (*req_version && isspace(*req_version & 255)) | |
2297 | req_version ++; | |
2298 | ||
2299 | /* | |
2300 | * Validate... | |
2301 | */ | |
2302 | ||
2303 | if (!strcmp(req_method, "OPTIONS")) | |
2304 | http->state = HTTP_STATE_OPTIONS; | |
2305 | else if (!strcmp(req_method, "GET")) | |
2306 | http->state = HTTP_STATE_GET; | |
2307 | else if (!strcmp(req_method, "HEAD")) | |
2308 | http->state = HTTP_STATE_HEAD; | |
2309 | else if (!strcmp(req_method, "POST")) | |
2310 | http->state = HTTP_STATE_POST; | |
2311 | else if (!strcmp(req_method, "PUT")) | |
2312 | http->state = HTTP_STATE_PUT; | |
2313 | else if (!strcmp(req_method, "DELETE")) | |
2314 | http->state = HTTP_STATE_DELETE; | |
2315 | else if (!strcmp(req_method, "TRACE")) | |
2316 | http->state = HTTP_STATE_TRACE; | |
2317 | else if (!strcmp(req_method, "CONNECT")) | |
2318 | http->state = HTTP_STATE_CONNECT; | |
2319 | else | |
2320 | { | |
2321 | DEBUG_printf(("1httpReadRequest: Unknown method \"%s\".", req_method)); | |
d21dc0ed | 2322 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request method."), 1); |
a469f8a5 MS |
2323 | return (HTTP_STATE_UNKNOWN_METHOD); |
2324 | } | |
2325 | ||
2326 | DEBUG_printf(("1httpReadRequest: Set state to %s.", | |
48bd1142 | 2327 | httpStateString(http->state))); |
a469f8a5 MS |
2328 | |
2329 | if (!strcmp(req_version, "HTTP/1.0")) | |
2330 | { | |
2331 | http->version = HTTP_VERSION_1_0; | |
2332 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2333 | } | |
2334 | else if (!strcmp(req_version, "HTTP/1.1")) | |
2335 | { | |
2336 | http->version = HTTP_VERSION_1_1; | |
2337 | http->keep_alive = HTTP_KEEPALIVE_ON; | |
2338 | } | |
2339 | else | |
2340 | { | |
2341 | DEBUG_printf(("1httpReadRequest: Unknown version \"%s\".", req_version)); | |
d21dc0ed | 2342 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request version."), 1); |
a469f8a5 MS |
2343 | return (HTTP_STATE_UNKNOWN_VERSION); |
2344 | } | |
2345 | ||
2346 | DEBUG_printf(("1httpReadRequest: URI is \"%s\".", req_uri)); | |
2347 | strlcpy(uri, req_uri, urilen); | |
2348 | ||
2349 | return (http->state); | |
2350 | } | |
2351 | ||
2352 | ||
2353 | /* | |
2354 | * 'httpReconnect()' - Reconnect to a HTTP server. | |
2355 | * | |
2356 | * This function is deprecated. Please use the @link httpReconnect2@ function | |
2357 | * instead. | |
2358 | * | |
2359 | * @deprecated@ | |
2360 | */ | |
2361 | ||
2362 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2363 | httpReconnect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
2364 | { |
2365 | DEBUG_printf(("httpReconnect(http=%p)", http)); | |
2366 | ||
2367 | return (httpReconnect2(http, 30000, NULL)); | |
2368 | } | |
2369 | ||
2370 | ||
2371 | /* | |
2372 | * 'httpReconnect2()' - Reconnect to a HTTP server with timeout and optional | |
2373 | * cancel. | |
2374 | */ | |
2375 | ||
2376 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2377 | httpReconnect2(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
2378 | int msec, /* I - Timeout in milliseconds */ |
2379 | int *cancel) /* I - Pointer to "cancel" variable */ | |
2380 | { | |
2381 | http_addrlist_t *addr; /* Connected address */ | |
2382 | #ifdef DEBUG | |
2383 | http_addrlist_t *current; /* Current address */ | |
2384 | char temp[256]; /* Temporary address string */ | |
2385 | #endif /* DEBUG */ | |
2386 | ||
2387 | ||
2388 | DEBUG_printf(("httpReconnect2(http=%p, msec=%d, cancel=%p)", http, msec, | |
2389 | cancel)); | |
2390 | ||
2391 | if (!http) | |
2392 | { | |
cb7f98ee | 2393 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
a469f8a5 MS |
2394 | return (-1); |
2395 | } | |
2396 | ||
2397 | #ifdef HAVE_SSL | |
2398 | if (http->tls) | |
2399 | { | |
2400 | DEBUG_puts("2httpReconnect2: Shutting down SSL/TLS..."); | |
2c85b752 | 2401 | http_tls_stop(http); |
a469f8a5 MS |
2402 | } |
2403 | #endif /* HAVE_SSL */ | |
2404 | ||
2405 | /* | |
2406 | * Close any previously open socket... | |
2407 | */ | |
2408 | ||
2409 | if (http->fd >= 0) | |
2410 | { | |
2411 | DEBUG_printf(("2httpReconnect2: Closing socket %d...", http->fd)); | |
2412 | ||
87e98392 | 2413 | httpAddrClose(NULL, http->fd); |
a469f8a5 MS |
2414 | |
2415 | http->fd = -1; | |
2416 | } | |
2417 | ||
2418 | /* | |
2419 | * Reset all state (except fields, which may be reused)... | |
2420 | */ | |
2421 | ||
2422 | http->state = HTTP_STATE_WAITING; | |
a469f8a5 MS |
2423 | http->version = HTTP_VERSION_1_1; |
2424 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
a29fd7dd | 2425 | memset(&http->_hostaddr, 0, sizeof(http->_hostaddr)); |
a469f8a5 | 2426 | http->data_encoding = HTTP_ENCODING_FIELDS; |
a29fd7dd MS |
2427 | http->_data_remaining = 0; |
2428 | http->used = 0; | |
a29fd7dd MS |
2429 | http->data_remaining = 0; |
2430 | http->hostaddr = NULL; | |
2431 | http->wused = 0; | |
2432 | ||
ef416fc2 | 2433 | /* |
2434 | * Connect to the server... | |
2435 | */ | |
2436 | ||
1ff0402e MS |
2437 | #ifdef DEBUG |
2438 | for (current = http->addrlist; current; current = current->next) | |
12f89d24 | 2439 | DEBUG_printf(("2httpReconnect2: Address %s:%d", |
1ff0402e | 2440 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
a469f8a5 | 2441 | httpAddrPort(&(current->addr)))); |
1ff0402e MS |
2442 | #endif /* DEBUG */ |
2443 | ||
dcb445bc MS |
2444 | if ((addr = httpAddrConnect2(http->addrlist, &(http->fd), msec, |
2445 | cancel)) == NULL) | |
ef416fc2 | 2446 | { |
2447 | /* | |
2448 | * Unable to connect... | |
2449 | */ | |
2450 | ||
2451 | #ifdef WIN32 | |
2452 | http->error = WSAGetLastError(); | |
2453 | #else | |
2454 | http->error = errno; | |
2455 | #endif /* WIN32 */ | |
cb7f98ee | 2456 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 2457 | |
12f89d24 | 2458 | DEBUG_printf(("1httpReconnect2: httpAddrConnect failed: %s", |
1ff0402e MS |
2459 | strerror(http->error))); |
2460 | ||
ef416fc2 | 2461 | return (-1); |
2462 | } | |
2463 | ||
12f89d24 | 2464 | DEBUG_printf(("2httpReconnect2: New socket=%d", http->fd)); |
1ff0402e | 2465 | |
85dda01c MS |
2466 | if (http->timeout_value > 0) |
2467 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2468 | |
ef416fc2 | 2469 | http->hostaddr = &(addr->addr); |
2470 | http->error = 0; | |
ef416fc2 | 2471 | |
2472 | #ifdef HAVE_SSL | |
cb7f98ee | 2473 | if (http->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 2474 | { |
2475 | /* | |
2476 | * Always do encryption via SSL. | |
2477 | */ | |
2478 | ||
2c85b752 | 2479 | if (http_tls_start(http) != 0) |
ef416fc2 | 2480 | { |
87e98392 | 2481 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2482 | |
2483 | return (-1); | |
2484 | } | |
2485 | } | |
cb7f98ee | 2486 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls_upgrade) |
2c85b752 | 2487 | return (http_tls_upgrade(http)); |
ef416fc2 | 2488 | #endif /* HAVE_SSL */ |
2489 | ||
12f89d24 | 2490 | DEBUG_printf(("1httpReconnect2: Connected to %s:%d...", |
1ff0402e | 2491 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
a469f8a5 | 2492 | httpAddrPort(http->hostaddr))); |
1ff0402e | 2493 | |
ef416fc2 | 2494 | return (0); |
2495 | } | |
2496 | ||
2497 | ||
355e94dc MS |
2498 | /* |
2499 | * 'httpSetAuthString()' - Set the current authorization string. | |
2500 | * | |
2501 | * This function just stores a copy of the current authorization string in | |
2502 | * the HTTP connection object. You must still call httpSetField() to set | |
2503 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2504 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2505 | * | |
f3c17241 | 2506 | * @since CUPS 1.3/OS X 10.5@ |
355e94dc MS |
2507 | */ |
2508 | ||
2509 | void | |
e6b1a6a9 | 2510 | httpSetAuthString(http_t *http, /* I - HTTP connection */ |
355e94dc MS |
2511 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2512 | const char *data) /* I - Auth data (NULL for none) */ | |
2513 | { | |
2514 | /* | |
2515 | * Range check input... | |
2516 | */ | |
2517 | ||
2518 | if (!http) | |
2519 | return; | |
2520 | ||
2521 | if (http->authstring && http->authstring != http->_authstring) | |
2522 | free(http->authstring); | |
2523 | ||
2524 | http->authstring = http->_authstring; | |
2525 | ||
2526 | if (scheme) | |
2527 | { | |
2528 | /* | |
2529 | * Set the current authorization string... | |
2530 | */ | |
2531 | ||
7e86f2f6 | 2532 | size_t len = strlen(scheme) + (data ? strlen(data) + 1 : 0) + 1; |
91c84a35 | 2533 | char *temp; |
355e94dc | 2534 | |
7e86f2f6 | 2535 | if (len > sizeof(http->_authstring)) |
91c84a35 MS |
2536 | { |
2537 | if ((temp = malloc(len)) == NULL) | |
2538 | len = sizeof(http->_authstring); | |
2539 | else | |
2540 | http->authstring = temp; | |
2541 | } | |
355e94dc MS |
2542 | |
2543 | if (data) | |
2544 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2545 | else | |
2546 | strlcpy(http->authstring, scheme, len); | |
2547 | } | |
2548 | else | |
2549 | { | |
2550 | /* | |
2551 | * Clear the current authorization string... | |
2552 | */ | |
2553 | ||
2554 | http->_authstring[0] = '\0'; | |
2555 | } | |
2556 | } | |
2557 | ||
2558 | ||
7cf5915e MS |
2559 | /* |
2560 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2561 | * connection. | |
2562 | * | |
f3c17241 | 2563 | * @since CUPS 1.5/OS X 10.7@ |
7cf5915e MS |
2564 | */ |
2565 | ||
2566 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2567 | httpSetCredentials(http_t *http, /* I - HTTP connection */ |
7cf5915e MS |
2568 | cups_array_t *credentials) /* I - Array of credentials */ |
2569 | { | |
2570 | if (!http || cupsArrayCount(credentials) < 1) | |
2571 | return (-1); | |
2572 | ||
2573 | _httpFreeCredentials(http->tls_credentials); | |
2574 | ||
85dda01c | 2575 | http->tls_credentials = _httpCreateCredentials(credentials); |
7cf5915e MS |
2576 | |
2577 | return (http->tls_credentials ? 0 : -1); | |
2578 | } | |
2579 | ||
2580 | ||
ef416fc2 | 2581 | /* |
6d2f911b | 2582 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2583 | * |
f3c17241 | 2584 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 2585 | */ |
2586 | ||
2587 | void | |
2588 | httpSetCookie(http_t *http, /* I - Connection */ | |
2589 | const char *cookie) /* I - Cookie string */ | |
2590 | { | |
2591 | if (!http) | |
2592 | return; | |
2593 | ||
2594 | if (http->cookie) | |
2595 | free(http->cookie); | |
2596 | ||
2597 | if (cookie) | |
2598 | http->cookie = strdup(cookie); | |
2599 | else | |
2600 | http->cookie = NULL; | |
2601 | } | |
2602 | ||
2603 | ||
c1420c87 MS |
2604 | /* |
2605 | * 'httpSetDefaultField()' - Set the default value of an HTTP header. | |
2606 | * | |
6961465f MS |
2607 | * Currently only @code HTTP_FIELD_ACCEPT_ENCODING@, @code HTTP_FIELD_SERVER@, |
2608 | * and @code HTTP_FIELD_USER_AGENT@ can be set. | |
c1420c87 | 2609 | * |
9c0e8e5d | 2610 | * @since CUPS 1.7/OS X 10.9@ |
c1420c87 MS |
2611 | */ |
2612 | ||
2613 | void | |
e6b1a6a9 | 2614 | httpSetDefaultField(http_t *http, /* I - HTTP connection */ |
c1420c87 MS |
2615 | http_field_t field, /* I - Field index */ |
2616 | const char *value)/* I - Value */ | |
2617 | { | |
2618 | DEBUG_printf(("httpSetDefaultField(http=%p, field=%d(%s), value=\"%s\")", | |
2619 | http, field, http_fields[field], value)); | |
2620 | ||
2621 | if (!http) | |
2622 | return; | |
2623 | ||
2624 | switch (field) | |
2625 | { | |
2626 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2627 | if (http->default_accept_encoding) | |
2628 | _cupsStrFree(http->default_accept_encoding); | |
2629 | ||
2630 | http->default_accept_encoding = value ? _cupsStrAlloc(value) : NULL; | |
2631 | break; | |
2632 | ||
2633 | case HTTP_FIELD_SERVER : | |
2634 | if (http->default_server) | |
2635 | _cupsStrFree(http->default_server); | |
2636 | ||
2637 | http->default_server = value ? _cupsStrAlloc(value) : NULL; | |
2638 | break; | |
2639 | ||
2640 | case HTTP_FIELD_USER_AGENT : | |
2641 | if (http->default_user_agent) | |
2642 | _cupsStrFree(http->default_user_agent); | |
2643 | ||
2644 | http->default_user_agent = value ? _cupsStrAlloc(value) : NULL; | |
2645 | break; | |
2646 | ||
2647 | default : | |
2648 | DEBUG_puts("1httpSetDefaultField: Ignored."); | |
2649 | break; | |
2650 | } | |
2651 | } | |
2652 | ||
2653 | ||
b423cd4c | 2654 | /* |
2655 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2656 | * | |
a469f8a5 MS |
2657 | * Currently only @code HTTP_STATUS_CONTINUE@ is supported for the "expect" |
2658 | * argument. | |
b423cd4c | 2659 | * |
f3c17241 | 2660 | * @since CUPS 1.2/OS X 10.5@ |
b423cd4c | 2661 | */ |
2662 | ||
2663 | void | |
e6b1a6a9 | 2664 | httpSetExpect(http_t *http, /* I - HTTP connection */ |
a469f8a5 | 2665 | http_status_t expect) /* I - HTTP status to expect |
cb7f98ee | 2666 | (@code HTTP_STATUS_CONTINUE@) */ |
b423cd4c | 2667 | { |
cb7f98ee MS |
2668 | DEBUG_printf(("httpSetExpect(http=%p, expect=%d)", http, expect)); |
2669 | ||
b423cd4c | 2670 | if (http) |
2671 | http->expect = expect; | |
2672 | } | |
2673 | ||
2674 | ||
ef416fc2 | 2675 | /* |
2676 | * 'httpSetField()' - Set the value of an HTTP header. | |
2677 | */ | |
2678 | ||
2679 | void | |
e6b1a6a9 | 2680 | httpSetField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2681 | http_field_t field, /* I - Field index */ |
2682 | const char *value) /* I - Value */ | |
2683 | { | |
a469f8a5 MS |
2684 | DEBUG_printf(("httpSetField(http=%p, field=%d(%s), value=\"%s\")", http, |
2685 | field, http_fields[field], value)); | |
2686 | ||
ef416fc2 | 2687 | if (http == NULL || |
2688 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
a469f8a5 | 2689 | field >= HTTP_FIELD_MAX || |
ef416fc2 | 2690 | value == NULL) |
2691 | return; | |
2692 | ||
a469f8a5 MS |
2693 | switch (field) |
2694 | { | |
2695 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2696 | if (http->accept_encoding) | |
2697 | _cupsStrFree(http->accept_encoding); | |
2698 | ||
2699 | http->accept_encoding = _cupsStrAlloc(value); | |
2700 | break; | |
2701 | ||
2702 | case HTTP_FIELD_ALLOW : | |
2703 | if (http->allow) | |
2704 | _cupsStrFree(http->allow); | |
2705 | ||
2706 | http->allow = _cupsStrAlloc(value); | |
2707 | break; | |
2708 | ||
2709 | case HTTP_FIELD_SERVER : | |
2710 | if (http->server) | |
2711 | _cupsStrFree(http->server); | |
2712 | ||
2713 | http->server = _cupsStrAlloc(value); | |
2714 | break; | |
2715 | ||
2716 | default : | |
2717 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
2718 | break; | |
2719 | } | |
f7deaa1a | 2720 | |
f7deaa1a | 2721 | if (field == HTTP_FIELD_AUTHORIZATION) |
2722 | { | |
e07d4801 MS |
2723 | /* |
2724 | * Special case for Authorization: as its contents can be | |
2725 | * longer than HTTP_MAX_VALUE | |
2726 | */ | |
2727 | ||
f7deaa1a | 2728 | if (http->field_authorization) |
2729 | free(http->field_authorization); | |
2730 | ||
2731 | http->field_authorization = strdup(value); | |
2732 | } | |
e07d4801 MS |
2733 | else if (field == HTTP_FIELD_HOST) |
2734 | { | |
2735 | /* | |
f11a948a MS |
2736 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2737 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2738 | */ |
2739 | ||
178cb736 MS |
2740 | char *ptr = strchr(value, ':'); |
2741 | ||
2742 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2743 | { |
2744 | /* | |
2745 | * Bracket IPv6 numeric addresses... | |
2746 | * | |
2747 | * This is slightly inefficient (basically copying twice), but is an edge | |
2748 | * case and not worth optimizing... | |
2749 | */ | |
e07d4801 | 2750 | |
f11a948a MS |
2751 | snprintf(http->fields[HTTP_FIELD_HOST], |
2752 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2753 | } | |
2754 | else | |
e07d4801 | 2755 | { |
f11a948a MS |
2756 | /* |
2757 | * Check for a trailing dot on the hostname... | |
2758 | */ | |
2759 | ||
178cb736 | 2760 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2761 | |
2762 | if (*ptr) | |
2763 | { | |
2764 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2765 | |
f11a948a MS |
2766 | if (*ptr == '.') |
2767 | *ptr = '\0'; | |
2768 | } | |
e07d4801 MS |
2769 | } |
2770 | } | |
a469f8a5 MS |
2771 | #ifdef HAVE_LIBZ |
2772 | else if (field == HTTP_FIELD_CONTENT_ENCODING && | |
2773 | http->data_encoding != HTTP_ENCODING_FIELDS) | |
2774 | { | |
2775 | DEBUG_puts("1httpSetField: Calling http_content_coding_start."); | |
2776 | http_content_coding_start(http, value); | |
2777 | } | |
2778 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2779 | } |
2780 | ||
2781 | ||
e6b1a6a9 MS |
2782 | /* |
2783 | * 'httpSetKeepAlive()' - Set the current Keep-Alive state of a connection. | |
2784 | * | |
2785 | * @since CUPS 2.0@ | |
2786 | */ | |
2787 | ||
2788 | void | |
2789 | httpSetKeepAlive( | |
2790 | http_t *http, /* I - HTTP connection */ | |
2791 | http_keepalive_t keep_alive) /* I - New Keep-Alive value */ | |
2792 | { | |
2793 | if (http) | |
2794 | http->keep_alive = keep_alive; | |
2795 | } | |
2796 | ||
2797 | ||
ef416fc2 | 2798 | /* |
2799 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2800 | * | |
f3c17241 | 2801 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 2802 | */ |
2803 | ||
2804 | void | |
e6b1a6a9 | 2805 | httpSetLength(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2806 | size_t length) /* I - Length (0 for chunked) */ |
2807 | { | |
a469f8a5 MS |
2808 | DEBUG_printf(("httpSetLength(http=%p, length=" CUPS_LLFMT ")", http, |
2809 | CUPS_LLCAST length)); | |
2810 | ||
ef416fc2 | 2811 | if (!http) |
2812 | return; | |
2813 | ||
2814 | if (!length) | |
2815 | { | |
5a9febac MS |
2816 | strlcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked", |
2817 | HTTP_MAX_VALUE); | |
ef416fc2 | 2818 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; |
2819 | } | |
2820 | else | |
2821 | { | |
2822 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2823 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2824 | CUPS_LLFMT, CUPS_LLCAST length); | |
2825 | } | |
2826 | } | |
2827 | ||
2828 | ||
10d09e33 | 2829 | /* |
f228370c | 2830 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2831 | * |
2832 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2833 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2834 | * | |
f3c17241 | 2835 | * @since CUPS 1.5/OS X 10.7@ |
10d09e33 MS |
2836 | */ |
2837 | ||
2838 | void | |
f228370c | 2839 | httpSetTimeout( |
e6b1a6a9 | 2840 | http_t *http, /* I - HTTP connection */ |
f228370c | 2841 | double timeout, /* I - Number of seconds for timeout, |
10d09e33 | 2842 | must be greater than 0 */ |
f228370c MS |
2843 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2844 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2845 | { |
2846 | if (!http || timeout <= 0.0) | |
2847 | return; | |
2848 | ||
85dda01c MS |
2849 | http->timeout_cb = cb; |
2850 | http->timeout_data = user_data; | |
2851 | http->timeout_value = timeout; | |
10d09e33 MS |
2852 | |
2853 | if (http->fd >= 0) | |
85dda01c | 2854 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2855 | |
85dda01c | 2856 | http_set_wait(http); |
10d09e33 MS |
2857 | } |
2858 | ||
2859 | ||
5ec1fd3d MS |
2860 | /* |
2861 | * 'httpShutdown()' - Shutdown one side of an HTTP connection. | |
2862 | * | |
2863 | * @since CUPS 2.0@ | |
2864 | */ | |
2865 | ||
2866 | void | |
2867 | httpShutdown(http_t *http) /* I - HTTP connection */ | |
2868 | { | |
2869 | if (!http || http->fd < 0) | |
2870 | return; | |
2871 | ||
2872 | if (http->tls) | |
d3d89474 | 2873 | http_tls_stop(http); |
5ec1fd3d MS |
2874 | |
2875 | shutdown(http->fd, SHUT_RD); | |
2876 | } | |
2877 | ||
2878 | ||
ef416fc2 | 2879 | /* |
2880 | * 'httpTrace()' - Send an TRACE request to the server. | |
2881 | */ | |
2882 | ||
2883 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2884 | httpTrace(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2885 | const char *uri) /* I - URI for trace */ |
2886 | { | |
cb7f98ee | 2887 | return (http_send(http, HTTP_STATE_TRACE, uri)); |
ef416fc2 | 2888 | } |
2889 | ||
2890 | ||
2891 | /* | |
e60ec91f MS |
2892 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2893 | * | |
2894 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2895 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2896 | */ |
2897 | ||
e60ec91f | 2898 | int /* O - 1 to continue, 0 to stop */ |
e6b1a6a9 | 2899 | _httpUpdate(http_t *http, /* I - HTTP connection */ |
e60ec91f | 2900 | http_status_t *status) /* O - Current HTTP status */ |
ef416fc2 | 2901 | { |
2902 | char line[32768], /* Line from connection... */ | |
2903 | *value; /* Pointer to value on line */ | |
2904 | http_field_t field; /* Field index */ | |
e60ec91f | 2905 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2906 | |
2907 | ||
e60ec91f | 2908 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
48bd1142 | 2909 | httpStateString(http->state))); |
ef416fc2 | 2910 | |
2911 | /* | |
e60ec91f | 2912 | * Grab a single line from the connection... |
ef416fc2 | 2913 | */ |
2914 | ||
e60ec91f | 2915 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2916 | { |
cb7f98ee | 2917 | *status = HTTP_STATUS_ERROR; |
e60ec91f | 2918 | return (0); |
ef416fc2 | 2919 | } |
2920 | ||
e60ec91f | 2921 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2922 | |
e60ec91f | 2923 | if (line[0] == '\0') |
ef416fc2 | 2924 | { |
e60ec91f MS |
2925 | /* |
2926 | * Blank line means the start of the data section (if any). Return | |
2927 | * the result code, too... | |
2928 | * | |
a469f8a5 MS |
2929 | * If we get status 100 (HTTP_STATUS_CONTINUE), then we *don't* change |
2930 | * states. Instead, we just return HTTP_STATUS_CONTINUE to the caller and | |
2931 | * keep on tryin'... | |
e60ec91f | 2932 | */ |
ef416fc2 | 2933 | |
a469f8a5 | 2934 | if (http->status == HTTP_STATUS_CONTINUE) |
ef416fc2 | 2935 | { |
e60ec91f MS |
2936 | *status = http->status; |
2937 | return (0); | |
2938 | } | |
ef416fc2 | 2939 | |
cb7f98ee | 2940 | if (http->status < HTTP_STATUS_BAD_REQUEST) |
e60ec91f | 2941 | http->digest_tries = 0; |
ef416fc2 | 2942 | |
2943 | #ifdef HAVE_SSL | |
cb7f98ee | 2944 | if (http->status == HTTP_STATUS_SWITCHING_PROTOCOLS && !http->tls) |
e60ec91f | 2945 | { |
2c85b752 | 2946 | if (http_tls_start(http) != 0) |
ef416fc2 | 2947 | { |
87e98392 | 2948 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2949 | |
cb7f98ee | 2950 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f | 2951 | return (0); |
ef416fc2 | 2952 | } |
e60ec91f | 2953 | |
a469f8a5 | 2954 | *status = HTTP_STATUS_CONTINUE; |
e60ec91f MS |
2955 | return (0); |
2956 | } | |
ef416fc2 | 2957 | #endif /* HAVE_SSL */ |
2958 | ||
a469f8a5 MS |
2959 | if (http_set_length(http) < 0) |
2960 | { | |
2961 | DEBUG_puts("1_httpUpdate: Bad Content-Length."); | |
2962 | http->error = EINVAL; | |
cb7f98ee | 2963 | http->status = *status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
2964 | return (0); |
2965 | } | |
ef416fc2 | 2966 | |
e60ec91f MS |
2967 | switch (http->state) |
2968 | { | |
c41769ff MS |
2969 | case HTTP_STATE_GET : |
2970 | case HTTP_STATE_POST : | |
a469f8a5 | 2971 | case HTTP_STATE_POST_RECV : |
c41769ff | 2972 | case HTTP_STATE_PUT : |
e60ec91f | 2973 | http->state ++; |
a469f8a5 MS |
2974 | |
2975 | DEBUG_printf(("1_httpUpdate: Set state to %s.", | |
48bd1142 | 2976 | httpStateString(http->state))); |
a469f8a5 | 2977 | |
c41769ff MS |
2978 | case HTTP_STATE_POST_SEND : |
2979 | case HTTP_STATE_HEAD : | |
e60ec91f | 2980 | break; |
ef416fc2 | 2981 | |
e60ec91f | 2982 | default : |
a469f8a5 MS |
2983 | http->state = HTTP_STATE_WAITING; |
2984 | ||
cb7f98ee | 2985 | DEBUG_puts("1_httpUpdate: Reset state to HTTP_STATE_WAITING."); |
e60ec91f | 2986 | break; |
ef416fc2 | 2987 | } |
e60ec91f | 2988 | |
a469f8a5 MS |
2989 | #ifdef HAVE_LIBZ |
2990 | DEBUG_puts("1_httpUpdate: Calling http_content_coding_start."); | |
2991 | http_content_coding_start(http, | |
2992 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
2993 | #endif /* HAVE_LIBZ */ | |
2994 | ||
e60ec91f MS |
2995 | *status = http->status; |
2996 | return (0); | |
2997 | } | |
2998 | else if (!strncmp(line, "HTTP/", 5)) | |
2999 | { | |
3000 | /* | |
3001 | * Got the beginning of a response... | |
3002 | */ | |
3003 | ||
3004 | int intstatus; /* Status value as an integer */ | |
3005 | ||
3006 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
3007 | { | |
cb7f98ee | 3008 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3009 | return (0); |
3010 | } | |
3011 | ||
a469f8a5 MS |
3012 | httpClearFields(http); |
3013 | ||
e60ec91f MS |
3014 | http->version = (http_version_t)(major * 100 + minor); |
3015 | *status = http->status = (http_status_t)intstatus; | |
3016 | } | |
3017 | else if ((value = strchr(line, ':')) != NULL) | |
3018 | { | |
3019 | /* | |
3020 | * Got a value... | |
3021 | */ | |
3022 | ||
3023 | *value++ = '\0'; | |
3024 | while (_cups_isspace(*value)) | |
3025 | value ++; | |
3026 | ||
a469f8a5 MS |
3027 | DEBUG_printf(("1_httpUpdate: Header %s: %s", line, value)); |
3028 | ||
e60ec91f MS |
3029 | /* |
3030 | * Be tolerants of servers that send unknown attribute fields... | |
3031 | */ | |
3032 | ||
88f9aafc | 3033 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 3034 | { |
3035 | /* | |
e60ec91f | 3036 | * "Expect: 100-continue" or similar... |
ef416fc2 | 3037 | */ |
3038 | ||
e60ec91f | 3039 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 3040 | } |
88f9aafc | 3041 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 3042 | { |
3043 | /* | |
e60ec91f | 3044 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 3045 | */ |
3046 | ||
e60ec91f MS |
3047 | httpSetCookie(http, value); |
3048 | } | |
48bd1142 | 3049 | else if ((field = httpFieldValue(line)) != HTTP_FIELD_UNKNOWN) |
e60ec91f MS |
3050 | httpSetField(http, field, value); |
3051 | #ifdef DEBUG | |
3052 | else | |
3053 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
3054 | #endif /* DEBUG */ | |
3055 | } | |
3056 | else | |
3057 | { | |
3058 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
a469f8a5 | 3059 | http->error = EINVAL; |
cb7f98ee | 3060 | http->status = *status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3061 | return (0); |
3062 | } | |
ef416fc2 | 3063 | |
e60ec91f MS |
3064 | return (1); |
3065 | } | |
ef416fc2 | 3066 | |
ef416fc2 | 3067 | |
e60ec91f MS |
3068 | /* |
3069 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
3070 | */ | |
ef416fc2 | 3071 | |
e60ec91f | 3072 | http_status_t /* O - HTTP status */ |
e6b1a6a9 | 3073 | httpUpdate(http_t *http) /* I - HTTP connection */ |
e60ec91f MS |
3074 | { |
3075 | http_status_t status; /* Request status */ | |
3076 | ||
3077 | ||
3078 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
48bd1142 | 3079 | httpStateString(http->state))); |
e60ec91f MS |
3080 | |
3081 | /* | |
3082 | * Flush pending data, if any... | |
3083 | */ | |
3084 | ||
3085 | if (http->wused) | |
3086 | { | |
3087 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
3088 | ||
3089 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 3090 | return (HTTP_STATUS_ERROR); |
ef416fc2 | 3091 | } |
3092 | ||
e60ec91f MS |
3093 | /* |
3094 | * If we haven't issued any commands, then there is nothing to "update"... | |
3095 | */ | |
3096 | ||
a469f8a5 | 3097 | if (http->state == HTTP_STATE_WAITING) |
cb7f98ee | 3098 | return (HTTP_STATUS_CONTINUE); |
e60ec91f MS |
3099 | |
3100 | /* | |
3101 | * Grab all of the lines we can from the connection... | |
3102 | */ | |
3103 | ||
3104 | while (_httpUpdate(http, &status)); | |
3105 | ||
ef416fc2 | 3106 | /* |
3107 | * See if there was an error... | |
3108 | */ | |
3109 | ||
cb7f98ee | 3110 | if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE) |
e07d4801 MS |
3111 | { |
3112 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 3113 | return (http->status); |
e07d4801 | 3114 | } |
ef416fc2 | 3115 | |
3116 | if (http->error) | |
3117 | { | |
e07d4801 | 3118 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 3119 | strerror(http->error))); |
cb7f98ee MS |
3120 | http->status = HTTP_STATUS_ERROR; |
3121 | return (HTTP_STATUS_ERROR); | |
ef416fc2 | 3122 | } |
3123 | ||
3124 | /* | |
e60ec91f | 3125 | * Return the current status... |
ef416fc2 | 3126 | */ |
3127 | ||
e60ec91f | 3128 | return (status); |
ef416fc2 | 3129 | } |
3130 | ||
3131 | ||
38e73f87 MS |
3132 | /* |
3133 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
3134 | */ | |
3135 | ||
3136 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3137 | _httpWait(http_t *http, /* I - HTTP connection */ |
38e73f87 MS |
3138 | int msec, /* I - Milliseconds to wait */ |
3139 | int usessl) /* I - Use SSL context? */ | |
3140 | { | |
3141 | #ifdef HAVE_POLL | |
3142 | struct pollfd pfd; /* Polled file descriptor */ | |
3143 | #else | |
3144 | fd_set input_set; /* select() input set */ | |
3145 | struct timeval timeout; /* Timeout */ | |
3146 | #endif /* HAVE_POLL */ | |
3147 | int nfds; /* Result from select()/poll() */ | |
3148 | ||
3149 | ||
e07d4801 | 3150 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
3151 | |
3152 | if (http->fd < 0) | |
f8b3a85b MS |
3153 | { |
3154 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 3155 | return (0); |
f8b3a85b | 3156 | } |
38e73f87 MS |
3157 | |
3158 | /* | |
3159 | * Check the SSL/TLS buffers for data first... | |
3160 | */ | |
3161 | ||
3162 | #ifdef HAVE_SSL | |
2bf2b8e9 | 3163 | if (http->tls && http_tls_pending(http)) |
38e73f87 | 3164 | { |
2c85b752 MS |
3165 | DEBUG_puts("5_httpWait: Return 1 since there is pending TLS data."); |
3166 | return (1); | |
38e73f87 MS |
3167 | } |
3168 | #endif /* HAVE_SSL */ | |
3169 | ||
3170 | /* | |
3171 | * Then try doing a select() or poll() to poll the socket... | |
3172 | */ | |
3173 | ||
3174 | #ifdef HAVE_POLL | |
3175 | pfd.fd = http->fd; | |
3176 | pfd.events = POLLIN; | |
3177 | ||
5a9febac MS |
3178 | do |
3179 | { | |
3180 | nfds = poll(&pfd, 1, msec); | |
3181 | } | |
3182 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
3183 | |
3184 | #else | |
3185 | do | |
3186 | { | |
3187 | FD_ZERO(&input_set); | |
3188 | FD_SET(http->fd, &input_set); | |
3189 | ||
e07d4801 | 3190 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
3191 | |
3192 | if (msec >= 0) | |
3193 | { | |
3194 | timeout.tv_sec = msec / 1000; | |
3195 | timeout.tv_usec = (msec % 1000) * 1000; | |
3196 | ||
3197 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
3198 | } | |
3199 | else | |
3200 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
3201 | ||
e07d4801 | 3202 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
3203 | } |
3204 | # ifdef WIN32 | |
cc754834 MS |
3205 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
3206 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 3207 | # else |
e07d4801 | 3208 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
3209 | # endif /* WIN32 */ |
3210 | #endif /* HAVE_POLL */ | |
3211 | ||
f8b3a85b MS |
3212 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
3213 | errno)); | |
38e73f87 MS |
3214 | |
3215 | return (nfds > 0); | |
3216 | } | |
3217 | ||
3218 | ||
ef416fc2 | 3219 | /* |
3220 | * 'httpWait()' - Wait for data available on a connection. | |
3221 | * | |
f3c17241 | 3222 | * @since CUPS 1.1.19/OS X 10.3@ |
ef416fc2 | 3223 | */ |
3224 | ||
3225 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3226 | httpWait(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3227 | int msec) /* I - Milliseconds to wait */ |
3228 | { | |
3229 | /* | |
3230 | * First see if there is data in the buffer... | |
3231 | */ | |
3232 | ||
22c9029b MS |
3233 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
3234 | ||
ef416fc2 | 3235 | if (http == NULL) |
3236 | return (0); | |
3237 | ||
3238 | if (http->used) | |
22c9029b MS |
3239 | { |
3240 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 3241 | return (1); |
22c9029b | 3242 | } |
ef416fc2 | 3243 | |
0fa6c7fa MS |
3244 | #ifdef HAVE_LIBZ |
3245 | if (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in > 0) | |
3246 | { | |
3247 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
3248 | return (1); | |
3249 | } | |
3250 | #endif /* HAVE_LIBZ */ | |
3251 | ||
8ca02f3c | 3252 | /* |
3253 | * Flush pending data, if any... | |
3254 | */ | |
3255 | ||
3256 | if (http->wused) | |
3257 | { | |
22c9029b MS |
3258 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3259 | ||
8ca02f3c | 3260 | if (httpFlushWrite(http) < 0) |
3261 | return (0); | |
3262 | } | |
3263 | ||
ef416fc2 | 3264 | /* |
3265 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3266 | */ | |
3267 | ||
38e73f87 | 3268 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3269 | } |
3270 | ||
3271 | ||
3272 | /* | |
3273 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3274 | * |
3275 | * This function is deprecated. Use the httpWrite2() function which can | |
3276 | * write more than 2GB of data. | |
3277 | * | |
3278 | * @deprecated@ | |
ef416fc2 | 3279 | */ |
ef55b745 | 3280 | |
ef416fc2 | 3281 | int /* O - Number of bytes written */ |
e6b1a6a9 | 3282 | httpWrite(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3283 | const char *buffer, /* I - Buffer for data */ |
3284 | int length) /* I - Number of bytes to write */ | |
3285 | { | |
7e86f2f6 | 3286 | return ((int)httpWrite2(http, buffer, (size_t)length)); |
a4d04587 | 3287 | } |
3288 | ||
3289 | ||
3290 | /* | |
3291 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3292 | * |
f3c17241 | 3293 | * @since CUPS 1.2/OS X 10.5@ |
a4d04587 | 3294 | */ |
ef55b745 | 3295 | |
a4d04587 | 3296 | ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 3297 | httpWrite2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 3298 | const char *buffer, /* I - Buffer for data */ |
3299 | size_t length) /* I - Number of bytes to write */ | |
3300 | { | |
3301 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3302 | |
3303 | ||
e07d4801 | 3304 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3305 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3306 | |
3307 | /* | |
3308 | * Range check input... | |
3309 | */ | |
3310 | ||
a469f8a5 MS |
3311 | if (!http || !buffer) |
3312 | { | |
3313 | DEBUG_puts("1httpWrite2: Returning -1 due to bad input."); | |
ef416fc2 | 3314 | return (-1); |
a469f8a5 | 3315 | } |
ef416fc2 | 3316 | |
3317 | /* | |
3318 | * Mark activity on the connection... | |
3319 | */ | |
3320 | ||
3321 | http->activity = time(NULL); | |
3322 | ||
3323 | /* | |
3324 | * Buffer small writes for better performance... | |
3325 | */ | |
3326 | ||
a469f8a5 | 3327 | #ifdef HAVE_LIBZ |
d423d83d | 3328 | if (http->coding == _HTTP_CODING_GZIP || http->coding == _HTTP_CODING_DEFLATE) |
a469f8a5 MS |
3329 | { |
3330 | DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding)); | |
3331 | ||
3332 | if (length == 0) | |
3333 | { | |
3334 | http_content_coding_finish(http); | |
3335 | bytes = 0; | |
3336 | } | |
3337 | else | |
3338 | { | |
3339 | http->stream.next_in = (Bytef *)buffer; | |
7e86f2f6 | 3340 | http->stream.avail_in = (uInt)length; |
a469f8a5 | 3341 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; |
7e86f2f6 | 3342 | http->stream.avail_out = (uInt)(sizeof(http->wbuffer) - (size_t)http->wused); |
a469f8a5 MS |
3343 | |
3344 | while (deflate(&(http->stream), Z_NO_FLUSH) == Z_OK) | |
3345 | { | |
7e86f2f6 | 3346 | http->wused = (int)(sizeof(http->wbuffer) - (size_t)http->stream.avail_out); |
a469f8a5 MS |
3347 | |
3348 | if (http->stream.avail_out == 0) | |
3349 | { | |
3350 | if (httpFlushWrite(http) < 0) | |
3351 | { | |
3352 | DEBUG_puts("1httpWrite2: Unable to flush, returning -1."); | |
3353 | return (-1); | |
3354 | } | |
3355 | ||
3356 | http->stream.next_out = (Bytef *)http->wbuffer; | |
3357 | http->stream.avail_out = sizeof(http->wbuffer); | |
3358 | } | |
3359 | } | |
3360 | ||
7e86f2f6 MS |
3361 | http->wused = (int)(sizeof(http->wbuffer) - (size_t)http->stream.avail_out); |
3362 | bytes = (ssize_t)length; | |
a469f8a5 MS |
3363 | } |
3364 | } | |
3365 | else | |
3366 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 3367 | if (length > 0) |
3368 | { | |
7e86f2f6 | 3369 | if (http->wused && (length + (size_t)http->wused) > sizeof(http->wbuffer)) |
ef416fc2 | 3370 | { |
e07d4801 MS |
3371 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3372 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3373 | |
3374 | httpFlushWrite(http); | |
3375 | } | |
3376 | ||
7e86f2f6 | 3377 | if ((length + (size_t)http->wused) <= sizeof(http->wbuffer) && length < sizeof(http->wbuffer)) |
ef416fc2 | 3378 | { |
3379 | /* | |
3380 | * Write to buffer... | |
3381 | */ | |
3382 | ||
e07d4801 | 3383 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3384 | CUPS_LLCAST length)); |
ef416fc2 | 3385 | |
3386 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3387 | http->wused += (int)length; |
3388 | bytes = (ssize_t)length; | |
ef416fc2 | 3389 | } |
3390 | else | |
3391 | { | |
3392 | /* | |
3393 | * Otherwise write the data directly... | |
3394 | */ | |
3395 | ||
e07d4801 | 3396 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3397 | CUPS_LLCAST length)); |
ef416fc2 | 3398 | |
a469f8a5 | 3399 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
7e86f2f6 | 3400 | bytes = (ssize_t)http_write_chunk(http, buffer, length); |
ef416fc2 | 3401 | else |
7e86f2f6 | 3402 | bytes = (ssize_t)http_write(http, buffer, length); |
ef416fc2 | 3403 | |
e07d4801 | 3404 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3405 | CUPS_LLCAST bytes)); |
ef416fc2 | 3406 | } |
3407 | ||
a469f8a5 | 3408 | if (http->data_encoding == HTTP_ENCODING_LENGTH) |
ef416fc2 | 3409 | http->data_remaining -= bytes; |
3410 | } | |
3411 | else | |
3412 | bytes = 0; | |
3413 | ||
3414 | /* | |
3415 | * Handle end-of-request processing... | |
3416 | */ | |
3417 | ||
a469f8a5 MS |
3418 | if ((http->data_encoding == HTTP_ENCODING_CHUNKED && length == 0) || |
3419 | (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0)) | |
ef416fc2 | 3420 | { |
3421 | /* | |
3422 | * Finished with the transfer; unless we are sending POST or PUT | |
3423 | * data, go idle... | |
3424 | */ | |
3425 | ||
db8b865d | 3426 | #ifdef HAVE_LIBZ |
d423d83d | 3427 | if (http->coding == _HTTP_CODING_GZIP || http->coding == _HTTP_CODING_DEFLATE) |
db8b865d MS |
3428 | http_content_coding_finish(http); |
3429 | #endif /* HAVE_LIBZ */ | |
3430 | ||
ef416fc2 | 3431 | if (http->wused) |
a469f8a5 MS |
3432 | { |
3433 | if (httpFlushWrite(http) < 0) | |
3434 | return (-1); | |
3435 | } | |
ef416fc2 | 3436 | |
a469f8a5 | 3437 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 3438 | { |
3439 | /* | |
3440 | * Send a 0-length chunk at the end of the request... | |
3441 | */ | |
3442 | ||
3443 | http_write(http, "0\r\n\r\n", 5); | |
3444 | ||
3445 | /* | |
3446 | * Reset the data state... | |
3447 | */ | |
3448 | ||
a469f8a5 | 3449 | http->data_encoding = HTTP_ENCODING_FIELDS; |
ef416fc2 | 3450 | http->data_remaining = 0; |
3451 | } | |
a469f8a5 MS |
3452 | |
3453 | if (http->state == HTTP_STATE_POST_RECV) | |
3454 | http->state ++; | |
dfc45c1b MS |
3455 | else if (http->state == HTTP_STATE_POST_SEND || |
3456 | http->state == HTTP_STATE_GET_SEND) | |
ad29aeab | 3457 | http->state = HTTP_STATE_WAITING; |
db8b865d | 3458 | else |
cb7f98ee | 3459 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 3460 | |
db8b865d | 3461 | DEBUG_printf(("2httpWrite2: Changed state to %s.", |
48bd1142 | 3462 | httpStateString(http->state))); |
ef416fc2 | 3463 | } |
3464 | ||
a469f8a5 MS |
3465 | DEBUG_printf(("1httpWrite2: Returning " CUPS_LLFMT ".", CUPS_LLCAST bytes)); |
3466 | ||
ef416fc2 | 3467 | return (bytes); |
3468 | } | |
3469 | ||
3470 | ||
a469f8a5 MS |
3471 | /* |
3472 | * 'httpWriteResponse()' - Write a HTTP response to a client connection. | |
3473 | * | |
9c0e8e5d | 3474 | * @since CUPS 1.7/OS X 10.9@ |
a469f8a5 MS |
3475 | */ |
3476 | ||
3477 | int /* O - 0 on success, -1 on error */ | |
3478 | httpWriteResponse(http_t *http, /* I - HTTP connection */ | |
3479 | http_status_t status) /* I - Status code */ | |
3480 | { | |
3481 | http_encoding_t old_encoding; /* Old data_encoding value */ | |
3482 | off_t old_remaining; /* Old data_remaining value */ | |
3483 | ||
3484 | ||
3485 | /* | |
3486 | * Range check input... | |
3487 | */ | |
3488 | ||
3489 | DEBUG_printf(("httpWriteResponse(http=%p, status=%d)", http, status)); | |
3490 | ||
3491 | if (!http || status < HTTP_STATUS_CONTINUE) | |
3492 | { | |
3493 | DEBUG_puts("1httpWriteResponse: Bad input."); | |
3494 | return (-1); | |
3495 | } | |
3496 | ||
3497 | /* | |
3498 | * Set the various standard fields if they aren't already... | |
3499 | */ | |
3500 | ||
3501 | if (!http->fields[HTTP_FIELD_DATE][0]) | |
3502 | httpSetField(http, HTTP_FIELD_DATE, httpGetDateString(time(NULL))); | |
3503 | ||
cb7f98ee | 3504 | if (status >= HTTP_STATUS_BAD_REQUEST && http->keep_alive) |
a469f8a5 | 3505 | { |
5ec1fd3d | 3506 | http->keep_alive = HTTP_KEEPALIVE_OFF; |
a469f8a5 MS |
3507 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, ""); |
3508 | } | |
3509 | ||
3510 | if (http->version == HTTP_VERSION_1_1) | |
3511 | { | |
3512 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3513 | { | |
3514 | if (http->keep_alive) | |
3515 | httpSetField(http, HTTP_FIELD_CONNECTION, "Keep-Alive"); | |
3516 | else | |
3517 | httpSetField(http, HTTP_FIELD_CONNECTION, "close"); | |
3518 | } | |
3519 | ||
3520 | if (http->keep_alive && !http->fields[HTTP_FIELD_KEEP_ALIVE][0]) | |
3521 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, "timeout=10"); | |
3522 | } | |
3523 | ||
3524 | #ifdef HAVE_SSL | |
e200616a MS |
3525 | if (status == HTTP_STATUS_UPGRADE_REQUIRED || |
3526 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3527 | { |
3528 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3529 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3530 | ||
3531 | if (!http->fields[HTTP_FIELD_UPGRADE][0]) | |
3532 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); | |
e200616a MS |
3533 | |
3534 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) | |
3535 | httpSetField(http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 MS |
3536 | } |
3537 | #endif /* HAVE_SSL */ | |
3538 | ||
3539 | if (!http->server) | |
c1420c87 MS |
3540 | httpSetField(http, HTTP_FIELD_SERVER, |
3541 | http->default_server ? http->default_server : CUPS_MINIMAL); | |
a469f8a5 | 3542 | |
a469f8a5 MS |
3543 | /* |
3544 | * Set the Accept-Encoding field if it isn't already... | |
3545 | */ | |
3546 | ||
3547 | if (!http->accept_encoding) | |
c1420c87 MS |
3548 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, |
3549 | http->default_accept_encoding ? http->default_accept_encoding : | |
3550 | #ifdef HAVE_LIBZ | |
3551 | "gzip, deflate, identity"); | |
3552 | #else | |
3553 | "identity"); | |
a469f8a5 MS |
3554 | #endif /* HAVE_LIBZ */ |
3555 | ||
3556 | /* | |
3557 | * Send the response header... | |
3558 | */ | |
3559 | ||
3560 | old_encoding = http->data_encoding; | |
3561 | old_remaining = http->data_remaining; | |
3562 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
3563 | ||
3564 | if (httpPrintf(http, "HTTP/%d.%d %d %s\r\n", http->version / 100, | |
3565 | http->version % 100, (int)status, httpStatus(status)) < 0) | |
3566 | { | |
3567 | http->status = HTTP_STATUS_ERROR; | |
3568 | return (-1); | |
3569 | } | |
3570 | ||
3571 | if (status != HTTP_STATUS_CONTINUE) | |
3572 | { | |
3573 | /* | |
3574 | * 100 Continue doesn't have the rest of the response headers... | |
3575 | */ | |
3576 | ||
3577 | int i; /* Looping var */ | |
3578 | const char *value; /* Field value */ | |
3579 | ||
3580 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3581 | { | |
3582 | if ((value = httpGetField(http, i)) != NULL && *value) | |
3583 | { | |
3584 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) | |
3585 | { | |
3586 | http->status = HTTP_STATUS_ERROR; | |
3587 | return (-1); | |
3588 | } | |
3589 | } | |
3590 | } | |
3591 | ||
3592 | if (http->cookie) | |
3593 | { | |
e200616a MS |
3594 | if (httpPrintf(http, "Set-Cookie: %s path=/ httponly%s\r\n", |
3595 | http->cookie, http->tls ? " secure" : "") < 1) | |
a469f8a5 | 3596 | { |
cb7f98ee | 3597 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3598 | return (-1); |
3599 | } | |
3600 | } | |
3601 | } | |
3602 | ||
3603 | if (httpWrite2(http, "\r\n", 2) < 2) | |
3604 | { | |
cb7f98ee | 3605 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3606 | return (-1); |
3607 | } | |
3608 | ||
3609 | if (httpFlushWrite(http) < 0) | |
3610 | { | |
cb7f98ee | 3611 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3612 | return (-1); |
3613 | } | |
3614 | ||
e200616a MS |
3615 | if (status == HTTP_STATUS_CONTINUE || |
3616 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3617 | { |
3618 | /* | |
3619 | * Restore the old data_encoding and data_length values... | |
3620 | */ | |
3621 | ||
3622 | http->data_encoding = old_encoding; | |
3623 | http->data_remaining = old_remaining; | |
3624 | ||
3625 | if (old_remaining <= INT_MAX) | |
3626 | http->_data_remaining = (int)old_remaining; | |
3627 | else | |
3628 | http->_data_remaining = INT_MAX; | |
3629 | } | |
3630 | else if (http->state == HTTP_STATE_OPTIONS || | |
3631 | http->state == HTTP_STATE_HEAD || | |
3632 | http->state == HTTP_STATE_PUT || | |
3633 | http->state == HTTP_STATE_TRACE || | |
cb7f98ee MS |
3634 | http->state == HTTP_STATE_CONNECT || |
3635 | http->state == HTTP_STATE_STATUS) | |
a469f8a5 MS |
3636 | { |
3637 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
48bd1142 | 3638 | "was %s.", httpStateString(http->state))); |
a469f8a5 MS |
3639 | http->state = HTTP_STATE_WAITING; |
3640 | } | |
3641 | else | |
3642 | { | |
3643 | /* | |
3644 | * Force data_encoding and data_length to be set according to the response | |
3645 | * headers... | |
3646 | */ | |
3647 | ||
3648 | http_set_length(http); | |
3649 | ||
dfc45c1b MS |
3650 | if (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0) |
3651 | { | |
3652 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
3653 | "was %s.", httpStateString(http->state))); | |
3654 | http->state = HTTP_STATE_WAITING; | |
3655 | return (0); | |
3656 | } | |
3657 | ||
db8b865d | 3658 | #ifdef HAVE_LIBZ |
a469f8a5 MS |
3659 | /* |
3660 | * Then start any content encoding... | |
3661 | */ | |
3662 | ||
3663 | DEBUG_puts("1httpWriteResponse: Calling http_content_coding_start."); | |
3664 | http_content_coding_start(http, | |
3665 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
db8b865d | 3666 | #endif /* HAVE_LIBZ */ |
dfc45c1b | 3667 | |
a469f8a5 MS |
3668 | } |
3669 | ||
3670 | return (0); | |
3671 | } | |
3672 | ||
3673 | ||
2c85b752 | 3674 | #ifdef HAVE_LIBZ |
411affcf | 3675 | /* |
2c85b752 | 3676 | * 'http_content_coding_finish()' - Finish doing any content encoding. |
411affcf | 3677 | */ |
3678 | ||
2c85b752 MS |
3679 | static void |
3680 | http_content_coding_finish( | |
3681 | http_t *http) /* I - HTTP connection */ | |
a469f8a5 MS |
3682 | { |
3683 | int zerr; /* Compression status */ | |
d2263221 | 3684 | Byte dummy[1]; /* Dummy read buffer */ |
a469f8a5 MS |
3685 | |
3686 | ||
3687 | switch (http->coding) | |
3688 | { | |
3689 | case _HTTP_CODING_DEFLATE : | |
3690 | case _HTTP_CODING_GZIP : | |
d2263221 MS |
3691 | http->stream.next_in = dummy; |
3692 | http->stream.avail_in = 0; | |
3693 | ||
a469f8a5 MS |
3694 | do |
3695 | { | |
3696 | http->stream.next_out = (Bytef *)http->wbuffer + http->wused; | |
7e86f2f6 | 3697 | http->stream.avail_out = (uInt)(sizeof(http->wbuffer) - (size_t)http->wused); |
a469f8a5 MS |
3698 | |
3699 | zerr = deflate(&(http->stream), Z_FINISH); | |
3700 | ||
7e86f2f6 | 3701 | http->wused = (int)(sizeof(http->wbuffer) - (size_t)http->stream.avail_out); |
a469f8a5 MS |
3702 | if (http->wused == sizeof(http->wbuffer)) |
3703 | httpFlushWrite(http); | |
3704 | } | |
3705 | while (zerr == Z_OK); | |
3706 | ||
3707 | deflateEnd(&(http->stream)); | |
3708 | ||
3709 | if (http->wused) | |
3710 | httpFlushWrite(http); | |
3711 | break; | |
3712 | ||
3713 | case _HTTP_CODING_INFLATE : | |
3714 | case _HTTP_CODING_GUNZIP : | |
3715 | inflateEnd(&(http->stream)); | |
0fa6c7fa MS |
3716 | free(http->dbuffer); |
3717 | http->dbuffer = NULL; | |
a469f8a5 MS |
3718 | break; |
3719 | ||
3720 | default : | |
3721 | break; | |
3722 | } | |
3723 | ||
3724 | http->coding = _HTTP_CODING_IDENTITY; | |
3725 | } | |
3726 | ||
3727 | ||
3728 | /* | |
3729 | * 'http_content_coding_start()' - Start doing content encoding. | |
3730 | */ | |
3731 | ||
3732 | static void | |
3733 | http_content_coding_start( | |
3734 | http_t *http, /* I - HTTP connection */ | |
3735 | const char *value) /* I - Value of Content-Encoding */ | |
3736 | { | |
3737 | int zerr; /* Error/status */ | |
3738 | _http_coding_t coding; /* Content coding value */ | |
3739 | ||
3740 | ||
3741 | DEBUG_printf(("http_content_coding_start(http=%p, value=\"%s\")", http, | |
3742 | value)); | |
3743 | ||
3744 | if (http->coding != _HTTP_CODING_IDENTITY) | |
3745 | { | |
3746 | DEBUG_printf(("1http_content_coding_start: http->coding already %d.", | |
3747 | http->coding)); | |
3748 | return; | |
3749 | } | |
3750 | else if (!strcmp(value, "x-gzip") || !strcmp(value, "gzip")) | |
3751 | { | |
cb7f98ee MS |
3752 | if (http->state == HTTP_STATE_GET_SEND || |
3753 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3754 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_GZIP : |
3755 | _HTTP_CODING_GUNZIP; | |
cb7f98ee MS |
3756 | else if (http->state == HTTP_STATE_POST_RECV || |
3757 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3758 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_GZIP : |
3759 | _HTTP_CODING_GUNZIP; | |
3760 | else | |
3761 | { | |
3762 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3763 | return; | |
3764 | } | |
3765 | } | |
3766 | else if (!strcmp(value, "x-deflate") || !strcmp(value, "deflate")) | |
3767 | { | |
cb7f98ee MS |
3768 | if (http->state == HTTP_STATE_GET_SEND || |
3769 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3770 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_DEFLATE : |
3771 | _HTTP_CODING_INFLATE; | |
cb7f98ee MS |
3772 | else if (http->state == HTTP_STATE_POST_RECV || |
3773 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3774 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_DEFLATE : |
3775 | _HTTP_CODING_INFLATE; | |
3776 | else | |
3777 | { | |
3778 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3779 | return; | |
3780 | } | |
3781 | } | |
3782 | else | |
3783 | { | |
3784 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3785 | return; | |
3786 | } | |
3787 | ||
3788 | memset(&(http->stream), 0, sizeof(http->stream)); | |
3789 | ||
3790 | switch (coding) | |
3791 | { | |
3792 | case _HTTP_CODING_DEFLATE : | |
3793 | case _HTTP_CODING_GZIP : | |
3794 | if (http->wused) | |
3795 | httpFlushWrite(http); | |
3796 | ||
db8b865d MS |
3797 | /* |
3798 | * Window size for compression is 11 bits - optimal based on PWG Raster | |
3799 | * sample files on pwg.org. -11 is raw deflate, 27 is gzip, per ZLIB | |
3800 | * documentation. | |
3801 | */ | |
3802 | ||
a469f8a5 MS |
3803 | if ((zerr = deflateInit2(&(http->stream), Z_DEFAULT_COMPRESSION, |
3804 | Z_DEFLATED, | |
db8b865d | 3805 | coding == _HTTP_CODING_DEFLATE ? -11 : 27, 7, |
a469f8a5 MS |
3806 | Z_DEFAULT_STRATEGY)) < Z_OK) |
3807 | { | |
cb7f98ee | 3808 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3809 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3810 | return; | |
3811 | } | |
3812 | break; | |
3813 | ||
3814 | case _HTTP_CODING_INFLATE : | |
3815 | case _HTTP_CODING_GUNZIP : | |
0fa6c7fa | 3816 | if ((http->dbuffer = malloc(HTTP_MAX_BUFFER)) == NULL) |
a469f8a5 | 3817 | { |
cb7f98ee | 3818 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa | 3819 | http->error = errno; |
a469f8a5 MS |
3820 | return; |
3821 | } | |
0fa6c7fa | 3822 | |
db8b865d MS |
3823 | /* |
3824 | * Window size for decompression is up to 15 bits (maximum supported). | |
3825 | * -15 is raw inflate, 31 is gunzip, per ZLIB documentation. | |
3826 | */ | |
3827 | ||
0fa6c7fa | 3828 | if ((zerr = inflateInit2(&(http->stream), |
db8b865d | 3829 | coding == _HTTP_CODING_INFLATE ? -15 : 31)) |
0fa6c7fa MS |
3830 | < Z_OK) |
3831 | { | |
3832 | free(http->dbuffer); | |
3833 | http->dbuffer = NULL; | |
cb7f98ee | 3834 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa MS |
3835 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3836 | return; | |
3837 | } | |
3838 | ||
3839 | http->stream.avail_in = 0; | |
3840 | http->stream.next_in = http->dbuffer; | |
a469f8a5 MS |
3841 | break; |
3842 | ||
3843 | default : | |
3844 | break; | |
3845 | } | |
3846 | ||
3847 | http->coding = coding; | |
3848 | ||
3849 | DEBUG_printf(("1http_content_coding_start: http->coding now %d.", | |
3850 | http->coding)); | |
3851 | } | |
3852 | #endif /* HAVE_LIBZ */ | |
3853 | ||
3854 | ||
db8b865d MS |
3855 | /* |
3856 | * 'http_create()' - Create an unconnected HTTP connection. | |
3857 | */ | |
3858 | ||
3859 | static http_t * /* O - HTTP connection */ | |
3860 | http_create( | |
3861 | const char *host, /* I - Hostname */ | |
3862 | int port, /* I - Port number */ | |
3863 | http_addrlist_t *addrlist, /* I - Address list or NULL */ | |
3864 | int family, /* I - Address family or AF_UNSPEC */ | |
3865 | http_encryption_t encryption, /* I - Encryption to use */ | |
3866 | int blocking, /* I - 1 for blocking mode */ | |
3867 | _http_mode_t mode) /* I - _HTTP_MODE_CLIENT or _SERVER */ | |
3868 | { | |
3869 | http_t *http; /* New HTTP connection */ | |
3870 | char service[255]; /* Service name */ | |
3871 | http_addrlist_t *myaddrlist = NULL; /* My address list */ | |
3872 | ||
3873 | ||
3874 | DEBUG_printf(("4http_create(host=\"%s\", port=%d, addrlist=%p, family=%d, " | |
3875 | "encryption=%d, blocking=%d, mode=%d)", host, port, addrlist, | |
3876 | family, encryption, blocking, mode)); | |
3877 | ||
3878 | if (!host && mode == _HTTP_MODE_CLIENT) | |
3879 | return (NULL); | |
3880 | ||
3881 | httpInitialize(); | |
3882 | ||
3883 | /* | |
3884 | * Lookup the host... | |
3885 | */ | |
3886 | ||
3887 | if (addrlist) | |
3888 | { | |
3889 | myaddrlist = httpAddrCopyList(addrlist); | |
3890 | } | |
3891 | else | |
3892 | { | |
3893 | snprintf(service, sizeof(service), "%d", port); | |
3894 | ||
3895 | myaddrlist = httpAddrGetList(host, family, service); | |
3896 | } | |
3897 | ||
3898 | if (!myaddrlist) | |
3899 | return (NULL); | |
3900 | ||
3901 | /* | |
3902 | * Allocate memory for the structure... | |
3903 | */ | |
3904 | ||
3905 | if ((http = calloc(sizeof(http_t), 1)) == NULL) | |
3906 | { | |
cb7f98ee | 3907 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); |
db8b865d MS |
3908 | httpAddrFreeList(addrlist); |
3909 | return (NULL); | |
3910 | } | |
3911 | ||
3912 | /* | |
3913 | * Initialize the HTTP data... | |
3914 | */ | |
3915 | ||
3916 | http->mode = mode; | |
3917 | http->activity = time(NULL); | |
3918 | http->addrlist = myaddrlist; | |
3919 | http->blocking = blocking; | |
3920 | http->fd = -1; | |
3921 | #ifdef HAVE_GSSAPI | |
3922 | http->gssctx = GSS_C_NO_CONTEXT; | |
3923 | http->gssname = GSS_C_NO_NAME; | |
3924 | #endif /* HAVE_GSSAPI */ | |
cb7f98ee | 3925 | http->status = HTTP_STATUS_CONTINUE; |
db8b865d MS |
3926 | http->version = HTTP_VERSION_1_1; |
3927 | ||
3928 | if (host) | |
3929 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
3930 | ||
3931 | if (port == 443) /* Always use encryption for https */ | |
3932 | http->encryption = HTTP_ENCRYPTION_ALWAYS; | |
3933 | else | |
3934 | http->encryption = encryption; | |
3935 | ||
3936 | http_set_wait(http); | |
3937 | ||
3938 | /* | |
3939 | * Return the new structure... | |
3940 | */ | |
3941 | ||
3942 | return (http); | |
3943 | } | |
3944 | ||
db8b865d | 3945 | |
ae71f5de MS |
3946 | #ifdef DEBUG |
3947 | /* | |
3948 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
3949 | */ | |
3950 | ||
3951 | static void | |
3952 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
3953 | const char *buffer, /* I - Buffer to dump */ | |
3954 | int bytes) /* I - Bytes to dump */ | |
3955 | { | |
3956 | int i, j, /* Looping vars */ | |
3957 | ch; /* Current character */ | |
3958 | char line[255], /* Line buffer */ | |
3959 | *start, /* Start of line after prefix */ | |
3960 | *ptr; /* Pointer into line */ | |
3961 | ||
3962 | ||
f11a948a | 3963 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
3964 | return; |
3965 | ||
83e08001 | 3966 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 3967 | |
f11a948a | 3968 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
3969 | start = line + strlen(line); |
3970 | ||
3971 | for (i = 0; i < bytes; i += 16) | |
3972 | { | |
3973 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
3974 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
3975 | ||
3976 | while (j < 16) | |
3977 | { | |
5a9febac | 3978 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3979 | ptr += 2; |
3980 | j ++; | |
3981 | } | |
3982 | ||
5a9febac | 3983 | memcpy(ptr, " ", 3); |
ae71f5de MS |
3984 | ptr += 2; |
3985 | ||
3986 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
3987 | { | |
3988 | ch = buffer[i + j] & 255; | |
3989 | ||
3990 | if (ch < ' ' || ch >= 127) | |
3991 | ch = '.'; | |
3992 | ||
7e86f2f6 | 3993 | *ptr++ = (char)ch; |
ae71f5de MS |
3994 | } |
3995 | ||
3996 | *ptr = '\0'; | |
3997 | DEBUG_puts(line); | |
3998 | } | |
3999 | } | |
4000 | #endif /* DEBUG */ | |
4001 | ||
4002 | ||
0fa6c7fa MS |
4003 | /* |
4004 | * 'http_read()' - Read a buffer from a HTTP connection. | |
4005 | * | |
4006 | * This function does the low-level read from the socket, retrying and timing | |
4007 | * out as needed. | |
4008 | */ | |
4009 | ||
4010 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4011 | http_read(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4012 | char *buffer, /* I - Buffer */ |
4013 | size_t length) /* I - Maximum bytes to read */ | |
4014 | { | |
4015 | ssize_t bytes; /* Bytes read */ | |
4016 | ||
4017 | ||
4018 | DEBUG_printf(("http_read(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, | |
4019 | buffer, CUPS_LLCAST length)); | |
4020 | ||
4021 | if (!http->blocking) | |
4022 | { | |
4023 | while (!httpWait(http, http->wait_value)) | |
4024 | { | |
4025 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4026 | continue; | |
4027 | ||
4028 | DEBUG_puts("2http_read: Timeout."); | |
4029 | return (0); | |
4030 | } | |
4031 | } | |
4032 | ||
4033 | DEBUG_printf(("2http_read: Reading %d bytes into buffer.", (int)length)); | |
4034 | ||
4035 | do | |
4036 | { | |
4037 | #ifdef HAVE_SSL | |
4038 | if (http->tls) | |
7e86f2f6 | 4039 | bytes = http_tls_read(http, buffer, (int)length); |
0fa6c7fa MS |
4040 | else |
4041 | #endif /* HAVE_SSL */ | |
4042 | bytes = recv(http->fd, buffer, length, 0); | |
4043 | ||
4044 | if (bytes < 0) | |
4045 | { | |
4046 | #ifdef WIN32 | |
4047 | if (WSAGetLastError() != WSAEINTR) | |
4048 | { | |
4049 | http->error = WSAGetLastError(); | |
4050 | return (-1); | |
4051 | } | |
4052 | else if (WSAGetLastError() == WSAEWOULDBLOCK) | |
4053 | { | |
4054 | if (!http->timeout_cb || | |
4055 | !(*http->timeout_cb)(http, http->timeout_data)) | |
4056 | { | |
4057 | http->error = WSAEWOULDBLOCK; | |
4058 | return (-1); | |
4059 | } | |
4060 | } | |
4061 | #else | |
4062 | DEBUG_printf(("2http_read: %s", strerror(errno))); | |
4063 | ||
4064 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
4065 | { | |
4066 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
4067 | { | |
4068 | http->error = errno; | |
4069 | return (-1); | |
4070 | } | |
4071 | else if (!http->timeout_cb && errno != EAGAIN) | |
4072 | { | |
4073 | http->error = errno; | |
4074 | return (-1); | |
4075 | } | |
4076 | } | |
4077 | else if (errno != EINTR) | |
4078 | { | |
4079 | http->error = errno; | |
4080 | return (-1); | |
4081 | } | |
4082 | #endif /* WIN32 */ | |
4083 | } | |
4084 | } | |
4085 | while (bytes < 0); | |
4086 | ||
4087 | DEBUG_printf(("2http_read: Read " CUPS_LLFMT " bytes into buffer.", | |
4088 | CUPS_LLCAST bytes)); | |
4089 | #ifdef DEBUG | |
4090 | if (bytes > 0) | |
6961465f | 4091 | http_debug_hex("http_read", buffer, (int)bytes); |
0fa6c7fa MS |
4092 | #endif /* DEBUG */ |
4093 | ||
4094 | if (bytes < 0) | |
4095 | { | |
4096 | #ifdef WIN32 | |
4097 | if (WSAGetLastError() == WSAEINTR) | |
4098 | bytes = 0; | |
4099 | else | |
4100 | http->error = WSAGetLastError(); | |
4101 | #else | |
4102 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) | |
4103 | bytes = 0; | |
4104 | else | |
4105 | http->error = errno; | |
4106 | #endif /* WIN32 */ | |
4107 | } | |
4108 | else if (bytes == 0) | |
4109 | { | |
4110 | http->error = EPIPE; | |
4111 | return (0); | |
4112 | } | |
4113 | ||
4114 | return (bytes); | |
4115 | } | |
4116 | ||
4117 | ||
4118 | /* | |
4119 | * 'http_read_buffered()' - Do a buffered read from a HTTP connection. | |
4120 | * | |
4121 | * This function reads data from the HTTP buffer or from the socket, as needed. | |
4122 | */ | |
4123 | ||
4124 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4125 | http_read_buffered(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4126 | char *buffer, /* I - Buffer */ |
4127 | size_t length) /* I - Maximum bytes to read */ | |
4128 | { | |
4129 | ssize_t bytes; /* Bytes read */ | |
4130 | ||
4131 | ||
4132 | DEBUG_printf(("http_read_buffered(http=%p, buffer=%p, length=" CUPS_LLFMT | |
4133 | ") used=%d", | |
4134 | http, buffer, CUPS_LLCAST length, http->used)); | |
4135 | ||
4136 | if (http->used > 0) | |
4137 | { | |
4138 | if (length > (size_t)http->used) | |
7e86f2f6 | 4139 | bytes = (ssize_t)http->used; |
0fa6c7fa | 4140 | else |
7e86f2f6 | 4141 | bytes = (ssize_t)length; |
0fa6c7fa MS |
4142 | |
4143 | DEBUG_printf(("2http_read: Grabbing %d bytes from input buffer.", | |
4144 | (int)bytes)); | |
4145 | ||
07623986 | 4146 | memcpy(buffer, http->buffer, (size_t)bytes); |
0fa6c7fa MS |
4147 | http->used -= (int)bytes; |
4148 | ||
4149 | if (http->used > 0) | |
07623986 | 4150 | memmove(http->buffer, http->buffer + bytes, (size_t)http->used); |
0fa6c7fa MS |
4151 | } |
4152 | else | |
4153 | bytes = http_read(http, buffer, length); | |
4154 | ||
4155 | return (bytes); | |
4156 | } | |
4157 | ||
4158 | ||
4159 | /* | |
4160 | * 'http_read_chunk()' - Read a chunk from a HTTP connection. | |
4161 | * | |
4162 | * This function reads and validates the chunk length, then does a buffered read | |
4163 | * returning the number of bytes placed in the buffer. | |
4164 | */ | |
4165 | ||
4166 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4167 | http_read_chunk(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4168 | char *buffer, /* I - Buffer */ |
4169 | size_t length) /* I - Maximum bytes to read */ | |
4170 | { | |
4171 | DEBUG_printf(("http_read_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
4172 | http, buffer, CUPS_LLCAST length)); | |
4173 | ||
4174 | if (http->data_remaining <= 0) | |
4175 | { | |
4176 | char len[32]; /* Length string */ | |
4177 | ||
4178 | if (!httpGets(len, sizeof(len), http)) | |
4179 | { | |
4180 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4181 | return (0); | |
4182 | } | |
4183 | ||
4184 | if (!len[0]) | |
4185 | { | |
4186 | DEBUG_puts("1http_read_chunk: Blank chunk length, trying again..."); | |
4187 | if (!httpGets(len, sizeof(len), http)) | |
4188 | { | |
4189 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4190 | return (0); | |
4191 | } | |
4192 | } | |
4193 | ||
4194 | http->data_remaining = strtoll(len, NULL, 16); | |
4195 | ||
4196 | if (http->data_remaining < 0) | |
4197 | { | |
4198 | DEBUG_printf(("1http_read_chunk: Negative chunk length \"%s\" (" | |
4199 | CUPS_LLFMT ")", len, CUPS_LLCAST http->data_remaining)); | |
4200 | return (0); | |
4201 | } | |
4202 | ||
4203 | DEBUG_printf(("2http_read_chunk: Got chunk length \"%s\" (" CUPS_LLFMT ")", | |
4204 | len, CUPS_LLCAST http->data_remaining)); | |
4205 | ||
4206 | if (http->data_remaining == 0) | |
4207 | { | |
4208 | /* | |
4209 | * 0-length chunk, grab trailing blank line... | |
4210 | */ | |
4211 | ||
4212 | httpGets(len, sizeof(len), http); | |
4213 | } | |
4214 | } | |
4215 | ||
4216 | DEBUG_printf(("2http_read_chunk: data_remaining=" CUPS_LLFMT, | |
4217 | CUPS_LLCAST http->data_remaining)); | |
4218 | ||
4219 | if (http->data_remaining <= 0) | |
4220 | return (0); | |
4221 | else if (length > (size_t)http->data_remaining) | |
4222 | length = (size_t)http->data_remaining; | |
4223 | ||
4224 | return (http_read_buffered(http, buffer, length)); | |
4225 | } | |
4226 | ||
4227 | ||
ef416fc2 | 4228 | /* |
4229 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
4230 | */ | |
4231 | ||
a469f8a5 | 4232 | static int /* O - 0 on success, non-zero on error */ |
e6b1a6a9 | 4233 | http_send(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
4234 | http_state_t request, /* I - Request code */ |
4235 | const char *uri) /* I - URI */ | |
ef416fc2 | 4236 | { |
a469f8a5 MS |
4237 | int i; /* Looping var */ |
4238 | char buf[1024]; /* Encoded URI buffer */ | |
4239 | const char *value; /* Field value */ | |
4240 | static const char * const codes[] = /* Request code strings */ | |
4241 | { | |
ef416fc2 | 4242 | NULL, |
4243 | "OPTIONS", | |
4244 | "GET", | |
4245 | NULL, | |
4246 | "HEAD", | |
4247 | "POST", | |
4248 | NULL, | |
4249 | NULL, | |
4250 | "PUT", | |
4251 | NULL, | |
4252 | "DELETE", | |
4253 | "TRACE", | |
a469f8a5 MS |
4254 | "CLOSE", |
4255 | NULL, | |
4256 | NULL | |
ef416fc2 | 4257 | }; |
ef416fc2 | 4258 | |
4259 | ||
cb7f98ee | 4260 | DEBUG_printf(("4http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 4261 | http, codes[request], uri)); |
4262 | ||
4263 | if (http == NULL || uri == NULL) | |
4264 | return (-1); | |
4265 | ||
4266 | /* | |
4267 | * Set the User-Agent field if it isn't already... | |
4268 | */ | |
4269 | ||
4270 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
db8b865d MS |
4271 | { |
4272 | if (http->default_user_agent) | |
4273 | httpSetField(http, HTTP_FIELD_USER_AGENT, http->default_user_agent); | |
4274 | else | |
4275 | httpSetField(http, HTTP_FIELD_USER_AGENT, cupsUserAgent()); | |
4276 | } | |
ef416fc2 | 4277 | |
a469f8a5 MS |
4278 | /* |
4279 | * Set the Accept-Encoding field if it isn't already... | |
4280 | */ | |
4281 | ||
c1420c87 MS |
4282 | if (!http->accept_encoding && http->default_accept_encoding) |
4283 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, | |
4284 | http->default_accept_encoding); | |
a469f8a5 | 4285 | |
ef416fc2 | 4286 | /* |
4287 | * Encode the URI as needed... | |
4288 | */ | |
4289 | ||
839a51c8 | 4290 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 4291 | |
4292 | /* | |
4293 | * See if we had an error the last time around; if so, reconnect... | |
4294 | */ | |
4295 | ||
cb7f98ee MS |
4296 | if (http->fd < 0 || http->status == HTTP_STATUS_ERROR || |
4297 | http->status >= HTTP_STATUS_BAD_REQUEST) | |
4298 | { | |
4299 | DEBUG_printf(("5http_send: Reconnecting, fd=%d, status=%d, tls_upgrade=%d", | |
4300 | http->fd, http->status, http->tls_upgrade)); | |
4301 | ||
4302 | if (httpReconnect2(http, 30000, NULL)) | |
fa73b229 | 4303 | return (-1); |
cb7f98ee | 4304 | } |
ef416fc2 | 4305 | |
d09495fa | 4306 | /* |
4307 | * Flush any written data that is pending... | |
4308 | */ | |
4309 | ||
4310 | if (http->wused) | |
536bc2c6 MS |
4311 | { |
4312 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 4313 | if (httpReconnect2(http, 30000, NULL)) |
536bc2c6 MS |
4314 | return (-1); |
4315 | } | |
d09495fa | 4316 | |
ef416fc2 | 4317 | /* |
4318 | * Send the request header... | |
4319 | */ | |
4320 | ||
d09495fa | 4321 | http->state = request; |
a469f8a5 | 4322 | http->data_encoding = HTTP_ENCODING_FIELDS; |
d09495fa | 4323 | |
cb7f98ee | 4324 | if (request == HTTP_STATE_POST || request == HTTP_STATE_PUT) |
ef416fc2 | 4325 | http->state ++; |
4326 | ||
cb7f98ee | 4327 | http->status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 4328 | |
4329 | #ifdef HAVE_SSL | |
cb7f98ee | 4330 | if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) |
ef416fc2 | 4331 | { |
4332 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
a469f8a5 | 4333 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4334 | } |
4335 | #endif /* HAVE_SSL */ | |
4336 | ||
4337 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
4338 | { | |
cb7f98ee | 4339 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4340 | return (-1); |
4341 | } | |
4342 | ||
4343 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
a469f8a5 | 4344 | if ((value = httpGetField(http, i)) != NULL && *value) |
ef416fc2 | 4345 | { |
cb7f98ee | 4346 | DEBUG_printf(("5http_send: %s: %s", http_fields[i], value)); |
ef416fc2 | 4347 | |
37e7e6e0 MS |
4348 | if (i == HTTP_FIELD_HOST) |
4349 | { | |
a469f8a5 MS |
4350 | if (httpPrintf(http, "Host: %s:%d\r\n", value, |
4351 | httpAddrPort(http->hostaddr)) < 1) | |
37e7e6e0 | 4352 | { |
cb7f98ee | 4353 | http->status = HTTP_STATUS_ERROR; |
37e7e6e0 MS |
4354 | return (-1); |
4355 | } | |
4356 | } | |
a469f8a5 | 4357 | else if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) |
ef416fc2 | 4358 | { |
cb7f98ee | 4359 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4360 | return (-1); |
4361 | } | |
4362 | } | |
4363 | ||
4364 | if (http->cookie) | |
4365 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
4366 | { | |
cb7f98ee | 4367 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4368 | return (-1); |
4369 | } | |
4370 | ||
cb7f98ee MS |
4371 | DEBUG_printf(("5http_send: expect=%d, mode=%d, state=%d", http->expect, |
4372 | http->mode, http->state)); | |
4373 | ||
4374 | if (http->expect == HTTP_STATUS_CONTINUE && http->mode == _HTTP_MODE_CLIENT && | |
4375 | (http->state == HTTP_STATE_POST_RECV || | |
4376 | http->state == HTTP_STATE_PUT_RECV)) | |
b423cd4c | 4377 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) |
4378 | { | |
cb7f98ee | 4379 | http->status = HTTP_STATUS_ERROR; |
b423cd4c | 4380 | return (-1); |
4381 | } | |
4382 | ||
ef416fc2 | 4383 | if (httpPrintf(http, "\r\n") < 1) |
4384 | { | |
cb7f98ee | 4385 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4386 | return (-1); |
4387 | } | |
4388 | ||
536bc2c6 MS |
4389 | if (httpFlushWrite(http) < 0) |
4390 | return (-1); | |
4391 | ||
a469f8a5 | 4392 | http_set_length(http); |
ef416fc2 | 4393 | httpClearFields(http); |
4394 | ||
f7deaa1a | 4395 | /* |
b94498cf | 4396 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 4397 | */ |
4398 | ||
ef55b745 MS |
4399 | if (http->field_authorization && http->authstring && |
4400 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 4401 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 4402 | { |
4403 | http->_authstring[0] = '\0'; | |
4404 | ||
4405 | if (http->authstring != http->_authstring) | |
4406 | free(http->authstring); | |
ef55b745 | 4407 | |
f7deaa1a | 4408 | http->authstring = http->_authstring; |
4409 | } | |
4410 | ||
ef416fc2 | 4411 | return (0); |
4412 | } | |
4413 | ||
4414 | ||
a469f8a5 MS |
4415 | /* |
4416 | * 'http_set_length()' - Set the data_encoding and data_remaining values. | |
4417 | */ | |
4418 | ||
4419 | static off_t /* O - Remainder or -1 on error */ | |
4420 | http_set_length(http_t *http) /* I - Connection */ | |
4421 | { | |
4422 | off_t remaining; /* Remainder */ | |
4423 | ||
4424 | ||
4425 | DEBUG_printf(("http_set_length(http=%p) mode=%d state=%s", http, http->mode, | |
48bd1142 | 4426 | httpStateString(http->state))); |
a469f8a5 MS |
4427 | |
4428 | if ((remaining = httpGetLength2(http)) >= 0) | |
4429 | { | |
4430 | if (http->mode == _HTTP_MODE_SERVER && | |
4431 | http->state != HTTP_STATE_GET_SEND && | |
c41769ff | 4432 | http->state != HTTP_STATE_PUT && |
a469f8a5 MS |
4433 | http->state != HTTP_STATE_POST && |
4434 | http->state != HTTP_STATE_POST_SEND) | |
4435 | { | |
4436 | DEBUG_puts("1http_set_length: Not setting data_encoding/remaining."); | |
4437 | return (remaining); | |
4438 | } | |
4439 | ||
4440 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], | |
4441 | "chunked")) | |
4442 | { | |
4443 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4444 | "HTTP_ENCODING_CHUNKED."); | |
4445 | http->data_encoding = HTTP_ENCODING_CHUNKED; | |
4446 | } | |
4447 | else | |
4448 | { | |
4449 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4450 | "HTTP_ENCODING_LENGTH."); | |
4451 | http->data_encoding = HTTP_ENCODING_LENGTH; | |
4452 | } | |
4453 | ||
4454 | DEBUG_printf(("1http_set_length: Setting data_remaining to " CUPS_LLFMT ".", | |
4455 | CUPS_LLCAST remaining)); | |
4456 | http->data_remaining = remaining; | |
4457 | ||
4458 | if (remaining <= INT_MAX) | |
7e86f2f6 | 4459 | http->_data_remaining = (int)remaining; |
a469f8a5 MS |
4460 | else |
4461 | http->_data_remaining = INT_MAX; | |
4462 | } | |
4463 | ||
4464 | return (remaining); | |
4465 | } | |
4466 | ||
85dda01c MS |
4467 | /* |
4468 | * 'http_set_timeout()' - Set the socket timeout values. | |
4469 | */ | |
4470 | ||
4471 | static void | |
4472 | http_set_timeout(int fd, /* I - File descriptor */ | |
4473 | double timeout) /* I - Timeout in seconds */ | |
4474 | { | |
4475 | #ifdef WIN32 | |
4476 | DWORD tv = (DWORD)(timeout * 1000); | |
4477 | /* Timeout in milliseconds */ | |
4478 | ||
db8b865d MS |
4479 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4480 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4481 | |
4482 | #else | |
4483 | struct timeval tv; /* Timeout in secs and usecs */ | |
4484 | ||
4485 | tv.tv_sec = (int)timeout; | |
4486 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
4487 | ||
db8b865d MS |
4488 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4489 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4490 | #endif /* WIN32 */ |
4491 | } | |
4492 | ||
4493 | ||
4494 | /* | |
4495 | * 'http_set_wait()' - Set the default wait value for reads. | |
4496 | */ | |
4497 | ||
4498 | static void | |
e6b1a6a9 | 4499 | http_set_wait(http_t *http) /* I - HTTP connection */ |
85dda01c MS |
4500 | { |
4501 | if (http->blocking) | |
4502 | { | |
4503 | http->wait_value = (int)(http->timeout_value * 1000); | |
4504 | ||
4505 | if (http->wait_value <= 0) | |
4506 | http->wait_value = 60000; | |
4507 | } | |
4508 | else | |
4509 | http->wait_value = 10000; | |
4510 | } | |
4511 | ||
4512 | ||
9b66acc5 | 4513 | #ifdef HAVE_SSL |
ef416fc2 | 4514 | /* |
2c85b752 | 4515 | * 'http_tls_upgrade()' - Force upgrade to TLS encryption. |
ef416fc2 | 4516 | */ |
4517 | ||
89d46774 | 4518 | static int /* O - Status of connection */ |
2c85b752 | 4519 | http_tls_upgrade(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 4520 | { |
89d46774 | 4521 | int ret; /* Return value */ |
4522 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4523 | |
4524 | ||
2c85b752 | 4525 | DEBUG_printf(("7http_tls_upgrade(%p)", http)); |
ef416fc2 | 4526 | |
85b5d1df MS |
4527 | /* |
4528 | * Flush the connection to make sure any previous "Upgrade" message | |
4529 | * has been read. | |
4530 | */ | |
4531 | ||
4532 | httpFlush(http); | |
4533 | ||
ef416fc2 | 4534 | /* |
4535 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4536 | * request without interfering with the existing request data... | |
4537 | */ | |
4538 | ||
4539 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4540 | ||
4541 | /* | |
4542 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4543 | * encryption on the link... | |
4544 | */ | |
4545 | ||
cb7f98ee | 4546 | http->tls_upgrade = 1; |
f7deaa1a | 4547 | http->field_authorization = NULL; /* Don't free the auth string */ |
4548 | ||
b86bc4cf | 4549 | httpClearFields(http); |
4550 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
a469f8a5 | 4551 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4552 | |
b86bc4cf | 4553 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4554 | { |
4555 | /* | |
4556 | * Wait for the secure connection... | |
4557 | */ | |
4558 | ||
cb7f98ee | 4559 | while (httpUpdate(http) == HTTP_STATUS_CONTINUE); |
ef416fc2 | 4560 | } |
4561 | ||
ef416fc2 | 4562 | /* |
b86bc4cf | 4563 | * Restore the HTTP request data... |
ef416fc2 | 4564 | */ |
4565 | ||
b86bc4cf | 4566 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4567 | http->data_encoding = myhttp.data_encoding; |
4568 | http->data_remaining = myhttp.data_remaining; | |
4569 | http->_data_remaining = myhttp._data_remaining; | |
4570 | http->expect = myhttp.expect; | |
4571 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4572 | http->digest_tries = myhttp.digest_tries; |
cb7f98ee | 4573 | http->tls_upgrade = 0; |
ef416fc2 | 4574 | |
4575 | /* | |
4576 | * See if we actually went secure... | |
4577 | */ | |
4578 | ||
4579 | if (!http->tls) | |
4580 | { | |
4581 | /* | |
4582 | * Server does not support HTTP upgrade... | |
4583 | */ | |
4584 | ||
2c85b752 | 4585 | DEBUG_puts("8http_tls_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4586 | |
87e98392 | 4587 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 4588 | |
4589 | http->fd = -1; | |
4590 | ||
4591 | return (-1); | |
4592 | } | |
4593 | else | |
4594 | return (ret); | |
4595 | } | |
4596 | #endif /* HAVE_SSL */ | |
4597 | ||
4598 | ||
ef416fc2 | 4599 | /* |
4600 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4601 | */ | |
ef55b745 | 4602 | |
0fa6c7fa | 4603 | static ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 4604 | http_write(http_t *http, /* I - HTTP connection */ |
f11a948a | 4605 | const char *buffer, /* I - Buffer for data */ |
0fa6c7fa | 4606 | size_t length) /* I - Number of bytes to write */ |
ef416fc2 | 4607 | { |
0fa6c7fa MS |
4608 | ssize_t tbytes, /* Total bytes sent */ |
4609 | bytes; /* Bytes sent */ | |
ef416fc2 | 4610 | |
4611 | ||
0fa6c7fa MS |
4612 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
4613 | buffer, CUPS_LLCAST length)); | |
f11a948a MS |
4614 | http->error = 0; |
4615 | tbytes = 0; | |
ef416fc2 | 4616 | |
4617 | while (length > 0) | |
4618 | { | |
12f89d24 MS |
4619 | DEBUG_printf(("3http_write: About to write %d bytes.", (int)length)); |
4620 | ||
85dda01c MS |
4621 | if (http->timeout_cb) |
4622 | { | |
4623 | #ifdef HAVE_POLL | |
4624 | struct pollfd pfd; /* Polled file descriptor */ | |
4625 | #else | |
4626 | fd_set output_set; /* Output ready for write? */ | |
4627 | struct timeval timeout; /* Timeout value */ | |
4628 | #endif /* HAVE_POLL */ | |
4629 | int nfds; /* Result from select()/poll() */ | |
4630 | ||
4631 | do | |
4632 | { | |
4633 | #ifdef HAVE_POLL | |
4634 | pfd.fd = http->fd; | |
4635 | pfd.events = POLLOUT; | |
4636 | ||
4637 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
82cc1f9a MS |
4638 | (errno == EINTR || errno == EAGAIN)) |
4639 | /* do nothing */; | |
85dda01c MS |
4640 | |
4641 | #else | |
4642 | do | |
4643 | { | |
4644 | FD_ZERO(&output_set); | |
4645 | FD_SET(http->fd, &output_set); | |
4646 | ||
4647 | timeout.tv_sec = http->wait_value / 1000; | |
4648 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4649 | ||
4650 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4651 | } | |
4652 | # ifdef WIN32 | |
4653 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4654 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4655 | # else | |
4656 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4657 | # endif /* WIN32 */ | |
4658 | #endif /* HAVE_POLL */ | |
4659 | ||
4660 | if (nfds < 0) | |
4661 | { | |
4662 | http->error = errno; | |
4663 | return (-1); | |
4664 | } | |
4665 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
4666 | { | |
4667 | #ifdef WIN32 | |
83e08001 | 4668 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4669 | #else |
4670 | http->error = EWOULDBLOCK; | |
4671 | #endif /* WIN32 */ | |
4672 | return (-1); | |
4673 | } | |
4674 | } | |
4675 | while (nfds <= 0); | |
4676 | } | |
4677 | ||
ef416fc2 | 4678 | #ifdef HAVE_SSL |
4679 | if (http->tls) | |
7e86f2f6 | 4680 | bytes = http_tls_write(http, buffer, (int)length); |
ef416fc2 | 4681 | else |
4682 | #endif /* HAVE_SSL */ | |
4683 | bytes = send(http->fd, buffer, length, 0); | |
4684 | ||
0fa6c7fa MS |
4685 | DEBUG_printf(("3http_write: Write of " CUPS_LLFMT " bytes returned " |
4686 | CUPS_LLFMT ".", CUPS_LLCAST length, CUPS_LLCAST bytes)); | |
12f89d24 | 4687 | |
ef416fc2 | 4688 | if (bytes < 0) |
4689 | { | |
4690 | #ifdef WIN32 | |
10d09e33 | 4691 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4692 | continue; |
10d09e33 MS |
4693 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4694 | { | |
4695 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4696 | continue; | |
4697 | ||
4698 | http->error = WSAGetLastError(); | |
4699 | } | |
4700 | else if (WSAGetLastError() != http->error && | |
4701 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4702 | { |
4703 | http->error = WSAGetLastError(); | |
4704 | continue; | |
4705 | } | |
10d09e33 | 4706 | |
ef416fc2 | 4707 | #else |
10d09e33 | 4708 | if (errno == EINTR) |
ef416fc2 | 4709 | continue; |
10d09e33 MS |
4710 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4711 | { | |
4712 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4713 | continue; | |
4714 | else if (!http->timeout_cb && errno == EAGAIN) | |
4715 | continue; | |
4716 | ||
4717 | http->error = errno; | |
4718 | } | |
ef416fc2 | 4719 | else if (errno != http->error && errno != ECONNRESET) |
4720 | { | |
4721 | http->error = errno; | |
4722 | continue; | |
4723 | } | |
4724 | #endif /* WIN32 */ | |
4725 | ||
f8b3a85b MS |
4726 | DEBUG_printf(("3http_write: error writing data (%s).", |
4727 | strerror(http->error))); | |
ef416fc2 | 4728 | |
4729 | return (-1); | |
4730 | } | |
4731 | ||
4732 | buffer += bytes; | |
4733 | tbytes += bytes; | |
7e86f2f6 | 4734 | length -= (size_t)bytes; |
ef416fc2 | 4735 | } |
4736 | ||
4737 | #ifdef DEBUG | |
7e86f2f6 | 4738 | http_debug_hex("http_write", buffer - tbytes, (int)tbytes); |
ef416fc2 | 4739 | #endif /* DEBUG */ |
4740 | ||
0fa6c7fa | 4741 | DEBUG_printf(("3http_write: Returning " CUPS_LLFMT ".", CUPS_LLCAST tbytes)); |
f8b3a85b | 4742 | |
ef416fc2 | 4743 | return (tbytes); |
4744 | } | |
4745 | ||
4746 | ||
4747 | /* | |
4748 | * 'http_write_chunk()' - Write a chunked buffer. | |
4749 | */ | |
4750 | ||
0fa6c7fa | 4751 | static ssize_t /* O - Number bytes written */ |
e6b1a6a9 | 4752 | http_write_chunk(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 4753 | const char *buffer, /* I - Buffer to write */ |
0fa6c7fa | 4754 | size_t length) /* I - Length of buffer */ |
ef416fc2 | 4755 | { |
0fa6c7fa MS |
4756 | char header[16]; /* Chunk header */ |
4757 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 4758 | |
f11a948a | 4759 | |
0fa6c7fa MS |
4760 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
4761 | http, buffer, CUPS_LLCAST length)); | |
ef416fc2 | 4762 | |
4763 | /* | |
4764 | * Write the chunk header, data, and trailer. | |
4765 | */ | |
4766 | ||
0fa6c7fa MS |
4767 | snprintf(header, sizeof(header), "%x\r\n", (unsigned)length); |
4768 | if (http_write(http, header, strlen(header)) < 0) | |
ef416fc2 | 4769 | { |
0fa6c7fa | 4770 | DEBUG_puts("8http_write_chunk: http_write of length failed."); |
ef416fc2 | 4771 | return (-1); |
4772 | } | |
4773 | ||
4774 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4775 | { | |
0fa6c7fa | 4776 | DEBUG_puts("8http_write_chunk: http_write of buffer failed."); |
ef416fc2 | 4777 | return (-1); |
4778 | } | |
4779 | ||
4780 | if (http_write(http, "\r\n", 2) < 0) | |
4781 | { | |
0fa6c7fa | 4782 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed."); |
ef416fc2 | 4783 | return (-1); |
4784 | } | |
4785 | ||
4786 | return (bytes); | |
4787 | } | |
4788 | ||
4789 | ||
ef416fc2 | 4790 | /* |
f2d18633 | 4791 | * End of "$Id$". |
ef416fc2 | 4792 | */ |