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Commit | Line | Data |
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ef416fc2 | 1 | /* |
996acce8 | 2 | * HTTP routines for CUPS. |
ef416fc2 | 3 | * |
1f717210 | 4 | * Copyright 2007-2018 by Apple Inc. |
996acce8 | 5 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 6 | * |
996acce8 MS |
7 | * This file contains Kerberos support code, copyright 2006 by |
8 | * Jelmer Vernooij. | |
f7deaa1a | 9 | * |
996acce8 MS |
10 | * These coded instructions, statements, and computer programs are the |
11 | * property of Apple Inc. and are protected by Federal copyright | |
12 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
13 | * which should have been included with this file. If this file is | |
57b7b66b | 14 | * missing or damaged, see the license at "http://www.cups.org/". |
ef416fc2 | 15 | * |
996acce8 | 16 | * This file is subject to the Apple OS-Developed Software exception. |
ef416fc2 | 17 | */ |
18 | ||
19 | /* | |
20 | * Include necessary headers... | |
21 | */ | |
22 | ||
71e16022 | 23 | #include "cups-private.h" |
ef416fc2 | 24 | #include <fcntl.h> |
83e08001 | 25 | #include <math.h> |
cc754834 MS |
26 | #ifdef WIN32 |
27 | # include <tchar.h> | |
28 | #else | |
ef416fc2 | 29 | # include <signal.h> |
30 | # include <sys/time.h> | |
31 | # include <sys/resource.h> | |
cc754834 | 32 | #endif /* WIN32 */ |
f7deaa1a | 33 | #ifdef HAVE_POLL |
dcb445bc | 34 | # include <poll.h> |
f7deaa1a | 35 | #endif /* HAVE_POLL */ |
ef416fc2 | 36 | |
37 | ||
ef416fc2 | 38 | /* |
39 | * Local functions... | |
40 | */ | |
41 | ||
1f717210 | 42 | static void http_add_field(http_t *http, http_field_t field, const char *value, int append); |
a469f8a5 MS |
43 | #ifdef HAVE_LIBZ |
44 | static void http_content_coding_finish(http_t *http); | |
45 | static void http_content_coding_start(http_t *http, | |
46 | const char *value); | |
47 | #endif /* HAVE_LIBZ */ | |
db8b865d MS |
48 | static http_t *http_create(const char *host, int port, |
49 | http_addrlist_t *addrlist, int family, | |
50 | http_encryption_t encryption, | |
51 | int blocking, _http_mode_t mode); | |
ae71f5de MS |
52 | #ifdef DEBUG |
53 | static void http_debug_hex(const char *prefix, const char *buffer, | |
54 | int bytes); | |
55 | #endif /* DEBUG */ | |
0fa6c7fa MS |
56 | static ssize_t http_read(http_t *http, char *buffer, size_t length); |
57 | static ssize_t http_read_buffered(http_t *http, char *buffer, size_t length); | |
58 | static ssize_t http_read_chunk(http_t *http, char *buffer, size_t length); | |
ef416fc2 | 59 | static int http_send(http_t *http, http_state_t request, |
60 | const char *uri); | |
0fa6c7fa MS |
61 | static ssize_t http_write(http_t *http, const char *buffer, |
62 | size_t length); | |
63 | static ssize_t http_write_chunk(http_t *http, const char *buffer, | |
64 | size_t length); | |
a469f8a5 | 65 | static off_t http_set_length(http_t *http); |
85dda01c MS |
66 | static void http_set_timeout(int fd, double timeout); |
67 | static void http_set_wait(http_t *http); | |
2c85b752 | 68 | |
d7225fc2 | 69 | #ifdef HAVE_SSL |
2c85b752 | 70 | static int http_tls_upgrade(http_t *http); |
ef416fc2 | 71 | #endif /* HAVE_SSL */ |
72 | ||
73 | ||
74 | /* | |
75 | * Local globals... | |
76 | */ | |
77 | ||
78 | static const char * const http_fields[] = | |
79 | { | |
80 | "Accept-Language", | |
81 | "Accept-Ranges", | |
82 | "Authorization", | |
83 | "Connection", | |
84 | "Content-Encoding", | |
85 | "Content-Language", | |
86 | "Content-Length", | |
87 | "Content-Location", | |
88 | "Content-MD5", | |
89 | "Content-Range", | |
90 | "Content-Type", | |
91 | "Content-Version", | |
92 | "Date", | |
93 | "Host", | |
94 | "If-Modified-Since", | |
95 | "If-Unmodified-since", | |
96 | "Keep-Alive", | |
97 | "Last-Modified", | |
98 | "Link", | |
99 | "Location", | |
100 | "Range", | |
101 | "Referer", | |
102 | "Retry-After", | |
103 | "Transfer-Encoding", | |
104 | "Upgrade", | |
105 | "User-Agent", | |
a469f8a5 MS |
106 | "WWW-Authenticate", |
107 | "Accept-Encoding", | |
108 | "Allow", | |
109 | "Server" | |
ef416fc2 | 110 | }; |
111 | ||
112 | ||
a469f8a5 MS |
113 | /* |
114 | * 'httpAcceptConnection()' - Accept a new HTTP client connection from the | |
115 | * specified listening socket. | |
116 | * | |
8072030b | 117 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
118 | */ |
119 | ||
120 | http_t * /* O - HTTP connection or @code NULL@ */ | |
121 | httpAcceptConnection(int fd, /* I - Listen socket file descriptor */ | |
122 | int blocking) /* I - 1 if the connection should be | |
123 | blocking, 0 otherwise */ | |
124 | { | |
125 | http_t *http; /* HTTP connection */ | |
126 | http_addrlist_t addrlist; /* Dummy address list */ | |
127 | socklen_t addrlen; /* Length of address */ | |
128 | int val; /* Socket option value */ | |
129 | ||
130 | ||
131 | /* | |
132 | * Range check input... | |
133 | */ | |
134 | ||
135 | if (fd < 0) | |
136 | return (NULL); | |
137 | ||
138 | /* | |
139 | * Create the client connection... | |
140 | */ | |
141 | ||
142 | memset(&addrlist, 0, sizeof(addrlist)); | |
143 | ||
db8b865d | 144 | if ((http = http_create(NULL, 0, &addrlist, AF_UNSPEC, |
a469f8a5 MS |
145 | HTTP_ENCRYPTION_IF_REQUESTED, blocking, |
146 | _HTTP_MODE_SERVER)) == NULL) | |
147 | return (NULL); | |
148 | ||
149 | /* | |
150 | * Accept the client and get the remote address... | |
151 | */ | |
152 | ||
153 | addrlen = sizeof(http_addr_t); | |
154 | ||
155 | if ((http->fd = accept(fd, (struct sockaddr *)&(http->addrlist->addr), | |
156 | &addrlen)) < 0) | |
157 | { | |
158 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
159 | httpClose(http); | |
160 | ||
161 | return (NULL); | |
162 | } | |
163 | ||
5ec1fd3d MS |
164 | http->hostaddr = &(http->addrlist->addr); |
165 | ||
166 | if (httpAddrLocalhost(http->hostaddr)) | |
167 | strlcpy(http->hostname, "localhost", sizeof(http->hostname)); | |
168 | else | |
169 | httpAddrString(http->hostaddr, http->hostname, sizeof(http->hostname)); | |
a469f8a5 MS |
170 | |
171 | #ifdef SO_NOSIGPIPE | |
172 | /* | |
173 | * Disable SIGPIPE for this socket. | |
174 | */ | |
175 | ||
176 | val = 1; | |
db8b865d | 177 | setsockopt(http->fd, SOL_SOCKET, SO_NOSIGPIPE, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
178 | #endif /* SO_NOSIGPIPE */ |
179 | ||
180 | /* | |
181 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
182 | * with a slow loopback interface. Since we write large buffers | |
183 | * when sending print files and requests, there shouldn't be any | |
184 | * performance penalty for this... | |
185 | */ | |
186 | ||
187 | val = 1; | |
db8b865d | 188 | setsockopt(http->fd, IPPROTO_TCP, TCP_NODELAY, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
189 | |
190 | #ifdef FD_CLOEXEC | |
191 | /* | |
192 | * Close this socket when starting another process... | |
193 | */ | |
194 | ||
195 | fcntl(http->fd, F_SETFD, FD_CLOEXEC); | |
196 | #endif /* FD_CLOEXEC */ | |
197 | ||
198 | return (http); | |
199 | } | |
200 | ||
201 | ||
7cf5915e MS |
202 | /* |
203 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
204 | * | |
205 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
206 | * | |
8072030b | 207 | * @since CUPS 1.5/macOS 10.7@ |
7cf5915e MS |
208 | */ |
209 | ||
210 | int /* O - 0 on success, -1 on error */ | |
211 | httpAddCredential( | |
212 | cups_array_t *credentials, /* I - Credentials array */ | |
213 | const void *data, /* I - PEM-encoded X.509 data */ | |
214 | size_t datalen) /* I - Length of data */ | |
215 | { | |
216 | http_credential_t *credential; /* Credential data */ | |
217 | ||
218 | ||
219 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
220 | { | |
221 | credential->datalen = datalen; | |
222 | ||
223 | if ((credential->data = malloc(datalen)) != NULL) | |
224 | { | |
225 | memcpy(credential->data, data, datalen); | |
226 | cupsArrayAdd(credentials, credential); | |
227 | return (0); | |
228 | } | |
229 | ||
230 | free(credential); | |
231 | } | |
232 | ||
233 | return (-1); | |
234 | } | |
235 | ||
236 | ||
ecdc0628 | 237 | /* |
238 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
239 | */ | |
240 | ||
241 | void | |
e6b1a6a9 | 242 | httpBlocking(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 243 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
244 | { | |
245 | if (http) | |
85dda01c | 246 | { |
ecdc0628 | 247 | http->blocking = b; |
85dda01c MS |
248 | http_set_wait(http); |
249 | } | |
ecdc0628 | 250 | } |
251 | ||
252 | ||
ef416fc2 | 253 | /* |
254 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
255 | */ | |
256 | ||
ecdc0628 | 257 | int /* O - 0 = no data, 1 = data available */ |
e6b1a6a9 | 258 | httpCheck(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 259 | { |
260 | return (httpWait(http, 0)); | |
261 | } | |
262 | ||
263 | ||
264 | /* | |
265 | * 'httpClearCookie()' - Clear the cookie value(s). | |
266 | * | |
8072030b | 267 | * @since CUPS 1.1.19/macOS 10.3@ |
ef416fc2 | 268 | */ |
269 | ||
270 | void | |
e6b1a6a9 | 271 | httpClearCookie(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 272 | { |
273 | if (!http) | |
274 | return; | |
275 | ||
276 | if (http->cookie) | |
277 | { | |
278 | free(http->cookie); | |
279 | http->cookie = NULL; | |
280 | } | |
281 | } | |
282 | ||
283 | ||
ecdc0628 | 284 | /* |
285 | * 'httpClearFields()' - Clear HTTP request fields. | |
286 | */ | |
287 | ||
288 | void | |
e6b1a6a9 | 289 | httpClearFields(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 290 | { |
807315e6 | 291 | DEBUG_printf(("httpClearFields(http=%p)", (void *)http)); |
a469f8a5 | 292 | |
ecdc0628 | 293 | if (http) |
294 | { | |
295 | memset(http->fields, 0, sizeof(http->fields)); | |
a469f8a5 MS |
296 | |
297 | if (http->mode == _HTTP_MODE_CLIENT) | |
298 | { | |
299 | if (http->hostname[0] == '/') | |
300 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
301 | else | |
302 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
303 | } | |
b423cd4c | 304 | |
f7deaa1a | 305 | if (http->field_authorization) |
306 | { | |
307 | free(http->field_authorization); | |
308 | http->field_authorization = NULL; | |
309 | } | |
310 | ||
a469f8a5 MS |
311 | if (http->accept_encoding) |
312 | { | |
313 | _cupsStrFree(http->accept_encoding); | |
314 | http->accept_encoding = NULL; | |
315 | } | |
316 | ||
317 | if (http->allow) | |
318 | { | |
319 | _cupsStrFree(http->allow); | |
320 | http->allow = NULL; | |
321 | } | |
322 | ||
323 | if (http->server) | |
324 | { | |
325 | _cupsStrFree(http->server); | |
326 | http->server = NULL; | |
327 | } | |
328 | ||
b423cd4c | 329 | http->expect = (http_status_t)0; |
ecdc0628 | 330 | } |
331 | } | |
332 | ||
333 | ||
ef416fc2 | 334 | /* |
6d2f911b | 335 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 336 | */ |
337 | ||
338 | void | |
e6b1a6a9 | 339 | httpClose(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 340 | { |
f7deaa1a | 341 | #ifdef HAVE_GSSAPI |
1f0275e3 | 342 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 343 | #endif /* HAVE_GSSAPI */ |
344 | ||
345 | ||
807315e6 | 346 | DEBUG_printf(("httpClose(http=%p)", (void *)http)); |
ef416fc2 | 347 | |
6d2f911b MS |
348 | /* |
349 | * Range check input... | |
350 | */ | |
351 | ||
ef416fc2 | 352 | if (!http) |
353 | return; | |
354 | ||
6d2f911b MS |
355 | /* |
356 | * Close any open connection... | |
357 | */ | |
358 | ||
359 | _httpDisconnect(http); | |
360 | ||
361 | /* | |
362 | * Free memory used... | |
363 | */ | |
364 | ||
ef416fc2 | 365 | httpAddrFreeList(http->addrlist); |
366 | ||
ef416fc2 | 367 | if (http->cookie) |
368 | free(http->cookie); | |
369 | ||
f7deaa1a | 370 | #ifdef HAVE_GSSAPI |
371 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 372 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 373 | |
374 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 375 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 376 | #endif /* HAVE_GSSAPI */ |
377 | ||
b94498cf | 378 | #ifdef HAVE_AUTHORIZATION_H |
379 | if (http->auth_ref) | |
380 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
381 | #endif /* HAVE_AUTHORIZATION_H */ | |
382 | ||
f7deaa1a | 383 | httpClearFields(http); |
384 | ||
385 | if (http->authstring && http->authstring != http->_authstring) | |
386 | free(http->authstring); | |
387 | ||
ef416fc2 | 388 | free(http); |
389 | } | |
390 | ||
391 | ||
72d05bc9 MS |
392 | /* |
393 | * 'httpCompareCredentials()' - Compare two sets of X.509 credentials. | |
394 | * | |
e1f19878 | 395 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
396 | */ |
397 | ||
398 | int /* O - 1 if they match, 0 if they do not */ | |
399 | httpCompareCredentials( | |
400 | cups_array_t *cred1, /* I - First set of X.509 credentials */ | |
401 | cups_array_t *cred2) /* I - Second set of X.509 credentials */ | |
402 | { | |
403 | http_credential_t *temp1, *temp2; /* Temporary credentials */ | |
404 | ||
405 | ||
406 | 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)) | |
407 | if (temp1->datalen != temp2->datalen) | |
408 | return (0); | |
409 | else if (memcmp(temp1->data, temp2->data, temp1->datalen)) | |
410 | return (0); | |
411 | ||
412 | return (temp1 == temp2); | |
413 | } | |
414 | ||
415 | ||
ef416fc2 | 416 | /* |
417 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e | 418 | * |
a469f8a5 | 419 | * This function is deprecated - use @link httpConnect2@ instead. |
1ff0402e | 420 | * |
53af7f21 | 421 | * @deprecated@ @exclude all@ |
ef416fc2 | 422 | */ |
423 | ||
424 | http_t * /* O - New HTTP connection */ | |
425 | httpConnect(const char *host, /* I - Host to connect to */ | |
426 | int port) /* I - Port number */ | |
427 | { | |
2c85b752 MS |
428 | return (httpConnect2(host, port, NULL, AF_UNSPEC, |
429 | HTTP_ENCRYPTION_IF_REQUESTED, 1, 30000, NULL)); | |
1ff0402e MS |
430 | } |
431 | ||
432 | ||
433 | /* | |
a469f8a5 MS |
434 | * 'httpConnect2()' - Connect to a HTTP server. |
435 | * | |
8072030b | 436 | * @since CUPS 1.7/macOS 10.9@ |
1ff0402e MS |
437 | */ |
438 | ||
439 | http_t * /* O - New HTTP connection */ | |
a469f8a5 | 440 | httpConnect2( |
1ff0402e MS |
441 | const char *host, /* I - Host to connect to */ |
442 | int port, /* I - Port number */ | |
98d88c8d | 443 | http_addrlist_t *addrlist, /* I - List of addresses or @code NULL@ to lookup */ |
a469f8a5 MS |
444 | int family, /* I - Address family to use or @code AF_UNSPEC@ for any */ |
445 | http_encryption_t encryption, /* I - Type of encryption to use */ | |
446 | int blocking, /* I - 1 for blocking connection, 0 for non-blocking */ | |
db8b865d | 447 | int msec, /* I - Connection timeout in milliseconds, 0 means don't connect */ |
a469f8a5 | 448 | int *cancel) /* I - Pointer to "cancel" variable */ |
1ff0402e MS |
449 | { |
450 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 451 | |
452 | ||
807315e6 | 453 | DEBUG_printf(("httpConnect2(host=\"%s\", port=%d, addrlist=%p, family=%d, encryption=%d, blocking=%d, msec=%d, cancel=%p)", host, port, (void *)addrlist, family, encryption, blocking, msec, (void *)cancel)); |
1ff0402e | 454 | |
ef416fc2 | 455 | /* |
1ff0402e | 456 | * Create the HTTP structure... |
ef416fc2 | 457 | */ |
458 | ||
db8b865d | 459 | if ((http = http_create(host, port, addrlist, family, encryption, blocking, |
a469f8a5 | 460 | _HTTP_MODE_CLIENT)) == NULL) |
1ff0402e | 461 | return (NULL); |
ef416fc2 | 462 | |
1ff0402e | 463 | /* |
db8b865d | 464 | * Optionally connect to the remote system... |
1ff0402e MS |
465 | */ |
466 | ||
db8b865d | 467 | if (msec == 0 || !httpReconnect2(http, msec, cancel)) |
1ff0402e MS |
468 | return (http); |
469 | ||
470 | /* | |
471 | * Could not connect to any known address - bail out! | |
472 | */ | |
473 | ||
a469f8a5 | 474 | httpClose(http); |
1ff0402e MS |
475 | |
476 | return (NULL); | |
ef416fc2 | 477 | } |
478 | ||
479 | ||
a469f8a5 MS |
480 | /* |
481 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
482 | * | |
483 | * This function is now deprecated. Please use the @link httpConnect2@ function | |
484 | * instead. | |
485 | * | |
53af7f21 | 486 | * @deprecated@ @exclude all@ |
a469f8a5 MS |
487 | */ |
488 | ||
489 | http_t * /* O - New HTTP connection */ | |
490 | httpConnectEncrypt( | |
491 | const char *host, /* I - Host to connect to */ | |
492 | int port, /* I - Port number */ | |
493 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
494 | { | |
495 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", | |
496 | host, port, encryption)); | |
497 | ||
498 | return (httpConnect2(host, port, NULL, AF_UNSPEC, encryption, 1, 30000, | |
499 | NULL)); | |
500 | } | |
501 | ||
502 | ||
ef416fc2 | 503 | /* |
504 | * 'httpDelete()' - Send a DELETE request to the server. | |
505 | */ | |
506 | ||
507 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 508 | httpDelete(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 509 | const char *uri) /* I - URI to delete */ |
510 | { | |
cb7f98ee | 511 | return (http_send(http, HTTP_STATE_DELETE, uri)); |
ef416fc2 | 512 | } |
513 | ||
514 | ||
6d2f911b MS |
515 | /* |
516 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
517 | */ | |
518 | ||
519 | void | |
e6b1a6a9 | 520 | _httpDisconnect(http_t *http) /* I - HTTP connection */ |
6d2f911b MS |
521 | { |
522 | #ifdef HAVE_SSL | |
523 | if (http->tls) | |
25731360 | 524 | _httpTLSStop(http); |
6d2f911b MS |
525 | #endif /* HAVE_SSL */ |
526 | ||
87e98392 | 527 | httpAddrClose(NULL, http->fd); |
6d2f911b MS |
528 | |
529 | http->fd = -1; | |
530 | } | |
531 | ||
532 | ||
ef416fc2 | 533 | /* |
534 | * 'httpEncryption()' - Set the required encryption on the link. | |
535 | */ | |
536 | ||
537 | int /* O - -1 on error, 0 on success */ | |
e6b1a6a9 | 538 | httpEncryption(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 539 | http_encryption_t e) /* I - New encryption preference */ |
540 | { | |
807315e6 | 541 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", (void *)http, e)); |
ef416fc2 | 542 | |
543 | #ifdef HAVE_SSL | |
544 | if (!http) | |
545 | return (0); | |
546 | ||
d3d89474 MS |
547 | if (http->mode == _HTTP_MODE_CLIENT) |
548 | { | |
549 | http->encryption = e; | |
ef416fc2 | 550 | |
d3d89474 MS |
551 | if ((http->encryption == HTTP_ENCRYPTION_ALWAYS && !http->tls) || |
552 | (http->encryption == HTTP_ENCRYPTION_NEVER && http->tls)) | |
553 | return (httpReconnect2(http, 30000, NULL)); | |
554 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) | |
555 | return (http_tls_upgrade(http)); | |
556 | else | |
557 | return (0); | |
558 | } | |
ef416fc2 | 559 | else |
d3d89474 MS |
560 | { |
561 | if (e == HTTP_ENCRYPTION_NEVER && http->tls) | |
562 | return (-1); | |
563 | ||
564 | http->encryption = e; | |
565 | if (e != HTTP_ENCRYPTION_IF_REQUESTED && !http->tls) | |
25731360 | 566 | return (_httpTLSStart(http)); |
d3d89474 MS |
567 | else |
568 | return (0); | |
569 | } | |
ef416fc2 | 570 | #else |
cb7f98ee | 571 | if (e == HTTP_ENCRYPTION_ALWAYS || e == HTTP_ENCRYPTION_REQUIRED) |
ef416fc2 | 572 | return (-1); |
573 | else | |
574 | return (0); | |
575 | #endif /* HAVE_SSL */ | |
576 | } | |
577 | ||
578 | ||
ecdc0628 | 579 | /* |
580 | * 'httpError()' - Get the last error on a connection. | |
581 | */ | |
582 | ||
583 | int /* O - Error code (errno) value */ | |
e6b1a6a9 | 584 | httpError(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 585 | { |
586 | if (http) | |
587 | return (http->error); | |
588 | else | |
589 | return (EINVAL); | |
590 | } | |
591 | ||
592 | ||
48bd1142 MS |
593 | /* |
594 | * 'httpFieldValue()' - Return the HTTP field enumeration value for a field | |
595 | * name. | |
596 | */ | |
597 | ||
598 | http_field_t /* O - Field index */ | |
599 | httpFieldValue(const char *name) /* I - String name */ | |
600 | { | |
601 | int i; /* Looping var */ | |
602 | ||
603 | ||
604 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
605 | if (!_cups_strcasecmp(name, http_fields[i])) | |
606 | return ((http_field_t)i); | |
607 | ||
608 | return (HTTP_FIELD_UNKNOWN); | |
609 | } | |
610 | ||
611 | ||
ef416fc2 | 612 | /* |
98d88c8d | 613 | * 'httpFlush()' - Flush data read from a HTTP connection. |
ef416fc2 | 614 | */ |
615 | ||
616 | void | |
e6b1a6a9 | 617 | httpFlush(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 618 | { |
f8b3a85b MS |
619 | char buffer[8192]; /* Junk buffer */ |
620 | int blocking; /* To block or not to block */ | |
621 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 622 | |
623 | ||
807315e6 | 624 | DEBUG_printf(("httpFlush(http=%p), state=%s", (void *)http, httpStateString(http->state))); |
ef416fc2 | 625 | |
c1420c87 MS |
626 | /* |
627 | * Nothing to do if we are in the "waiting" state... | |
628 | */ | |
629 | ||
630 | if (http->state == HTTP_STATE_WAITING) | |
631 | return; | |
632 | ||
fa73b229 | 633 | /* |
634 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
635 | */ | |
636 | ||
637 | blocking = http->blocking; | |
638 | http->blocking = 0; | |
639 | ||
640 | /* | |
641 | * Read any data we can... | |
642 | */ | |
643 | ||
f8b3a85b | 644 | oldstate = http->state; |
a4d04587 | 645 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 646 | |
647 | /* | |
648 | * Restore blocking and reset the connection if we didn't get all of | |
649 | * the remaining data... | |
650 | */ | |
651 | ||
652 | http->blocking = blocking; | |
653 | ||
a469f8a5 MS |
654 | if (http->state == oldstate && http->state != HTTP_STATE_WAITING && |
655 | http->fd >= 0) | |
fa73b229 | 656 | { |
657 | /* | |
658 | * Didn't get the data back, so close the current connection. | |
659 | */ | |
660 | ||
c41769ff MS |
661 | #ifdef HAVE_LIBZ |
662 | if (http->coding) | |
663 | http_content_coding_finish(http); | |
664 | #endif /* HAVE_LIBZ */ | |
665 | ||
a469f8a5 MS |
666 | DEBUG_puts("1httpFlush: Setting state to HTTP_STATE_WAITING and closing."); |
667 | ||
668 | http->state = HTTP_STATE_WAITING; | |
fa73b229 | 669 | |
670 | #ifdef HAVE_SSL | |
671 | if (http->tls) | |
25731360 | 672 | _httpTLSStop(http); |
fa73b229 | 673 | #endif /* HAVE_SSL */ |
674 | ||
87e98392 | 675 | httpAddrClose(NULL, http->fd); |
fa73b229 | 676 | |
677 | http->fd = -1; | |
678 | } | |
ef416fc2 | 679 | } |
680 | ||
681 | ||
682 | /* | |
98d88c8d | 683 | * 'httpFlushWrite()' - Flush data written to a HTTP connection. |
ef416fc2 | 684 | * |
8072030b | 685 | * @since CUPS 1.2/macOS 10.5@ |
ef416fc2 | 686 | */ |
687 | ||
688 | int /* O - Bytes written or -1 on error */ | |
e6b1a6a9 | 689 | httpFlushWrite(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 690 | { |
7e86f2f6 | 691 | ssize_t bytes; /* Bytes written */ |
ef416fc2 | 692 | |
693 | ||
807315e6 | 694 | DEBUG_printf(("httpFlushWrite(http=%p) data_encoding=%d", (void *)http, http ? http->data_encoding : 100)); |
ef416fc2 | 695 | |
696 | if (!http || !http->wused) | |
f8b3a85b MS |
697 | { |
698 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
699 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 700 | return (0); |
f8b3a85b | 701 | } |
ef416fc2 | 702 | |
a469f8a5 | 703 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
7e86f2f6 | 704 | bytes = http_write_chunk(http, http->wbuffer, (size_t)http->wused); |
ef416fc2 | 705 | else |
7e86f2f6 | 706 | bytes = http_write(http, http->wbuffer, (size_t)http->wused); |
ef416fc2 | 707 | |
708 | http->wused = 0; | |
709 | ||
7e86f2f6 | 710 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", (int)bytes, errno)); |
f8b3a85b | 711 | |
7e86f2f6 | 712 | return ((int)bytes); |
ef416fc2 | 713 | } |
714 | ||
715 | ||
7cf5915e MS |
716 | /* |
717 | * 'httpFreeCredentials()' - Free an array of credentials. | |
718 | */ | |
719 | ||
720 | void | |
721 | httpFreeCredentials( | |
722 | cups_array_t *credentials) /* I - Array of credentials */ | |
723 | { | |
724 | http_credential_t *credential; /* Credential */ | |
725 | ||
726 | ||
727 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
728 | credential; | |
729 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
730 | { | |
731 | cupsArrayRemove(credentials, credential); | |
732 | free((void *)credential->data); | |
733 | free(credential); | |
734 | } | |
735 | ||
736 | cupsArrayDelete(credentials); | |
737 | } | |
738 | ||
739 | ||
ef416fc2 | 740 | /* |
741 | * 'httpGet()' - Send a GET request to the server. | |
742 | */ | |
743 | ||
744 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 745 | httpGet(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 746 | const char *uri) /* I - URI to get */ |
747 | { | |
cb7f98ee | 748 | return (http_send(http, HTTP_STATE_GET, uri)); |
ef416fc2 | 749 | } |
750 | ||
751 | ||
e6b1a6a9 MS |
752 | /* |
753 | * 'httpGetActivity()' - Get the most recent activity for a connection. | |
754 | * | |
98d88c8d | 755 | * The return value is the time in seconds of the last read or write. |
e6b1a6a9 | 756 | * |
e1f19878 | 757 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
758 | */ |
759 | ||
760 | time_t /* O - Time of last read or write */ | |
761 | httpGetActivity(http_t *http) /* I - HTTP connection */ | |
762 | { | |
763 | return (http ? http->activity : 0); | |
764 | } | |
765 | ||
766 | ||
6961465f MS |
767 | /* |
768 | * 'httpGetAuthString()' - Get the current authorization string. | |
769 | * | |
98d88c8d MS |
770 | * The authorization string is set by @link cupsDoAuthentication@ and |
771 | * @link httpSetAuthString@. Use @link httpGetAuthString@ to retrieve the | |
772 | * string to use with @link httpSetField@ for the | |
773 | * @code HTTP_FIELD_AUTHORIZATION@ value. | |
6961465f | 774 | * |
8072030b | 775 | * @since CUPS 1.3/macOS 10.5@ |
6961465f MS |
776 | */ |
777 | ||
778 | char * /* O - Authorization string */ | |
e6b1a6a9 | 779 | httpGetAuthString(http_t *http) /* I - HTTP connection */ |
6961465f MS |
780 | { |
781 | if (http) | |
782 | return (http->authstring); | |
783 | else | |
784 | return (NULL); | |
785 | } | |
786 | ||
787 | ||
788 | /* | |
789 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
790 | * | |
8072030b | 791 | * @since CUPS 1.2/macOS 10.5@ |
6961465f MS |
792 | */ |
793 | ||
794 | int /* O - 1 if blocking, 0 if non-blocking */ | |
e6b1a6a9 | 795 | httpGetBlocking(http_t *http) /* I - HTTP connection */ |
6961465f MS |
796 | { |
797 | return (http ? http->blocking : 0); | |
798 | } | |
799 | ||
800 | ||
a469f8a5 MS |
801 | /* |
802 | * 'httpGetContentEncoding()' - Get a common content encoding, if any, between | |
803 | * the client and server. | |
804 | * | |
805 | * This function uses the value of the Accepts-Encoding HTTP header and must be | |
806 | * called after receiving a response from the server or a request from the | |
807 | * client. The value returned can be use in subsequent requests (for clients) | |
808 | * or in the response (for servers) in order to compress the content stream. | |
809 | * | |
8072030b | 810 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
811 | */ |
812 | ||
813 | const char * /* O - Content-Coding value or | |
814 | @code NULL@ for the identity | |
815 | coding. */ | |
2c85b752 | 816 | httpGetContentEncoding(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
817 | { |
818 | #ifdef HAVE_LIBZ | |
819 | if (http && http->accept_encoding) | |
820 | { | |
821 | int i; /* Looping var */ | |
822 | char temp[HTTP_MAX_VALUE], /* Copy of Accepts-Encoding value */ | |
823 | *start, /* Start of coding value */ | |
824 | *end; /* End of coding value */ | |
825 | double qvalue; /* "qvalue" for coding */ | |
826 | struct lconv *loc = localeconv(); /* Locale data */ | |
827 | static const char * const codings[] = | |
828 | { /* Supported content codings */ | |
829 | "deflate", | |
830 | "gzip", | |
831 | "x-deflate", | |
832 | "x-gzip" | |
833 | }; | |
834 | ||
835 | strlcpy(temp, http->accept_encoding, sizeof(temp)); | |
836 | ||
837 | for (start = temp; *start; start = end) | |
838 | { | |
839 | /* | |
840 | * Find the end of the coding name... | |
841 | */ | |
842 | ||
843 | qvalue = 1.0; | |
844 | end = start; | |
845 | while (*end && *end != ';' && *end != ',' && !isspace(*end & 255)) | |
846 | end ++; | |
847 | ||
848 | if (*end == ';') | |
849 | { | |
850 | /* | |
851 | * Grab the qvalue as needed... | |
852 | */ | |
853 | ||
854 | if (!strncmp(end, ";q=", 3)) | |
855 | qvalue = _cupsStrScand(end + 3, NULL, loc); | |
856 | ||
857 | /* | |
858 | * Skip past all attributes... | |
859 | */ | |
860 | ||
861 | *end++ = '\0'; | |
862 | while (*end && *end != ',' && !isspace(*end & 255)) | |
863 | end ++; | |
864 | } | |
865 | else if (*end) | |
866 | *end++ = '\0'; | |
867 | ||
868 | while (*end && isspace(*end & 255)) | |
869 | end ++; | |
870 | ||
871 | /* | |
872 | * Check value if it matches something we support... | |
873 | */ | |
874 | ||
875 | if (qvalue <= 0.0) | |
876 | continue; | |
877 | ||
878 | for (i = 0; i < (int)(sizeof(codings) / sizeof(codings[0])); i ++) | |
879 | if (!strcmp(start, codings[i])) | |
880 | return (codings[i]); | |
881 | } | |
882 | } | |
883 | #endif /* HAVE_LIBZ */ | |
884 | ||
885 | return (NULL); | |
886 | } | |
887 | ||
888 | ||
ecdc0628 | 889 | /* |
890 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 891 | * |
8072030b | 892 | * @since CUPS 1.1.19/macOS 10.3@ |
ecdc0628 | 893 | */ |
894 | ||
98d88c8d | 895 | const char * /* O - Cookie data or @code NULL@ */ |
dd3fdd2c | 896 | httpGetCookie(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 897 | { |
898 | return (http ? http->cookie : NULL); | |
899 | } | |
900 | ||
901 | ||
5ec1fd3d MS |
902 | /* |
903 | * 'httpGetEncryption()' - Get the current encryption mode of a connection. | |
904 | * | |
905 | * This function returns the encryption mode for the connection. Use the | |
906 | * @link httpIsEncrypted@ function to determine whether a TLS session has | |
907 | * been established. | |
908 | * | |
e1f19878 | 909 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
910 | */ |
911 | ||
912 | http_encryption_t /* O - Current encryption mode */ | |
913 | httpGetEncryption(http_t *http) /* I - HTTP connection */ | |
914 | { | |
915 | return (http ? http->encryption : HTTP_ENCRYPTION_IF_REQUESTED); | |
916 | } | |
917 | ||
918 | ||
a469f8a5 MS |
919 | /* |
920 | * 'httpGetExpect()' - Get the value of the Expect header, if any. | |
921 | * | |
922 | * Returns @code HTTP_STATUS_NONE@ if there is no Expect header, otherwise | |
923 | * returns the expected HTTP status code, typically @code HTTP_STATUS_CONTINUE@. | |
924 | * | |
8072030b | 925 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
926 | */ |
927 | ||
928 | http_status_t /* O - Expect: status, if any */ | |
2c85b752 | 929 | httpGetExpect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
930 | { |
931 | if (!http) | |
932 | return (HTTP_STATUS_ERROR); | |
933 | else | |
934 | return (http->expect); | |
935 | } | |
936 | ||
937 | ||
ecdc0628 | 938 | /* |
939 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
940 | * | |
8072030b | 941 | * @since CUPS 1.2/macOS 10.5@ |
ecdc0628 | 942 | */ |
943 | ||
944 | int /* O - File descriptor or -1 if none */ | |
e6b1a6a9 | 945 | httpGetFd(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 946 | { |
947 | return (http ? http->fd : -1); | |
948 | } | |
949 | ||
950 | ||
951 | /* | |
952 | * 'httpGetField()' - Get a field value from a request/response. | |
953 | */ | |
954 | ||
955 | const char * /* O - Field value */ | |
e6b1a6a9 | 956 | httpGetField(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 957 | http_field_t field) /* I - Field to get */ |
958 | { | |
959 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
960 | return (NULL); | |
a469f8a5 MS |
961 | |
962 | switch (field) | |
f7deaa1a | 963 | { |
a469f8a5 MS |
964 | case HTTP_FIELD_ACCEPT_ENCODING : |
965 | return (http->accept_encoding); | |
f7deaa1a | 966 | |
a469f8a5 MS |
967 | case HTTP_FIELD_ALLOW : |
968 | return (http->allow); | |
969 | ||
970 | case HTTP_FIELD_SERVER : | |
971 | return (http->server); | |
972 | ||
973 | case HTTP_FIELD_AUTHORIZATION : | |
974 | if (http->field_authorization) | |
975 | { | |
976 | /* | |
977 | * Special case for WWW-Authenticate: as its contents can be | |
978 | * longer than HTTP_MAX_VALUE... | |
979 | */ | |
980 | ||
981 | return (http->field_authorization); | |
982 | } | |
983 | ||
984 | default : | |
985 | return (http->fields[field]); | |
f7deaa1a | 986 | } |
ecdc0628 | 987 | } |
988 | ||
989 | ||
e6b1a6a9 MS |
990 | /* |
991 | * 'httpGetKeepAlive()' - Get the current Keep-Alive state of the connection. | |
992 | * | |
e1f19878 | 993 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
994 | */ |
995 | ||
996 | http_keepalive_t /* O - Keep-Alive state */ | |
997 | httpGetKeepAlive(http_t *http) /* I - HTTP connection */ | |
998 | { | |
999 | return (http ? http->keep_alive : HTTP_KEEPALIVE_OFF); | |
1000 | } | |
1001 | ||
1002 | ||
ecdc0628 | 1003 | /* |
1004 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1005 | * content-length or transfer-encoding fields. | |
1006 | * | |
1007 | * This function is deprecated and will not return lengths larger than | |
1008 | * 2^31 - 1; use httpGetLength2() instead. | |
1009 | * | |
53af7f21 | 1010 | * @deprecated@ @exclude all@ |
ecdc0628 | 1011 | */ |
1012 | ||
1013 | int /* O - Content length */ | |
e6b1a6a9 | 1014 | httpGetLength(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1015 | { |
1016 | /* | |
1017 | * Get the read content length and return the 32-bit value. | |
1018 | */ | |
1019 | ||
1020 | if (http) | |
1021 | { | |
1022 | httpGetLength2(http); | |
1023 | ||
1024 | return (http->_data_remaining); | |
1025 | } | |
1026 | else | |
1027 | return (-1); | |
1028 | } | |
1029 | ||
1030 | ||
1031 | /* | |
1032 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1033 | * content-length or transfer-encoding fields. | |
1034 | * | |
1035 | * This function returns the complete content length, even for | |
1036 | * content larger than 2^31 - 1. | |
1037 | * | |
8072030b | 1038 | * @since CUPS 1.2/macOS 10.5@ |
ecdc0628 | 1039 | */ |
1040 | ||
1041 | off_t /* O - Content length */ | |
e6b1a6a9 | 1042 | httpGetLength2(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1043 | { |
a469f8a5 MS |
1044 | off_t remaining; /* Remaining length */ |
1045 | ||
1046 | ||
807315e6 | 1047 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", (void *)http, httpStateString(http->state))); |
ecdc0628 | 1048 | |
1049 | if (!http) | |
1050 | return (-1); | |
1051 | ||
88f9aafc | 1052 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1053 | { |
e07d4801 | 1054 | DEBUG_puts("4httpGetLength2: chunked request!"); |
a469f8a5 | 1055 | remaining = 0; |
ecdc0628 | 1056 | } |
1057 | else | |
1058 | { | |
ecdc0628 | 1059 | /* |
1060 | * The following is a hack for HTTP servers that don't send a | |
a469f8a5 | 1061 | * Content-Length or Transfer-Encoding field... |
ecdc0628 | 1062 | * |
a469f8a5 | 1063 | * If there is no Content-Length then the connection must close |
ecdc0628 | 1064 | * after the transfer is complete... |
1065 | */ | |
1066 | ||
b86bc4cf | 1067 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1068 | { | |
1069 | /* | |
a469f8a5 MS |
1070 | * Default content length is 0 for errors and certain types of operations, |
1071 | * and 2^31-1 for other successful requests... | |
b86bc4cf | 1072 | */ |
1073 | ||
cb7f98ee | 1074 | if (http->status >= HTTP_STATUS_MULTIPLE_CHOICES || |
a469f8a5 MS |
1075 | http->state == HTTP_STATE_OPTIONS || |
1076 | (http->state == HTTP_STATE_GET && http->mode == _HTTP_MODE_SERVER) || | |
1077 | http->state == HTTP_STATE_HEAD || | |
1078 | (http->state == HTTP_STATE_PUT && http->mode == _HTTP_MODE_CLIENT) || | |
1079 | http->state == HTTP_STATE_DELETE || | |
1080 | http->state == HTTP_STATE_TRACE || | |
1081 | http->state == HTTP_STATE_CONNECT) | |
1082 | remaining = 0; | |
b86bc4cf | 1083 | else |
a469f8a5 | 1084 | remaining = 2147483647; |
b86bc4cf | 1085 | } |
a469f8a5 MS |
1086 | else if ((remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], |
1087 | NULL, 10)) < 0) | |
1088 | remaining = -1; | |
ecdc0628 | 1089 | |
e07d4801 | 1090 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
a469f8a5 | 1091 | CUPS_LLCAST remaining)); |
ecdc0628 | 1092 | } |
1093 | ||
a469f8a5 | 1094 | return (remaining); |
ecdc0628 | 1095 | } |
1096 | ||
1097 | ||
d21dc0ed MS |
1098 | /* |
1099 | * 'httpGetPending()' - Get the number of bytes that are buffered for writing. | |
1100 | * | |
e1f19878 | 1101 | * @since CUPS 2.0/OS 10.10@ |
d21dc0ed MS |
1102 | */ |
1103 | ||
1104 | size_t /* O - Number of bytes buffered */ | |
1105 | httpGetPending(http_t *http) /* I - HTTP connection */ | |
1106 | { | |
7e86f2f6 | 1107 | return (http ? (size_t)http->wused : 0); |
d21dc0ed MS |
1108 | } |
1109 | ||
1110 | ||
e6b1a6a9 MS |
1111 | /* |
1112 | * 'httpGetReady()' - Get the number of bytes that can be read without blocking. | |
1113 | * | |
e1f19878 | 1114 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
1115 | */ |
1116 | ||
1117 | size_t /* O - Number of bytes available */ | |
1118 | httpGetReady(http_t *http) /* I - HTTP connection */ | |
1119 | { | |
1120 | if (!http) | |
1121 | return (0); | |
1122 | else if (http->used > 0) | |
7e86f2f6 | 1123 | return ((size_t)http->used); |
e6b1a6a9 MS |
1124 | #ifdef HAVE_SSL |
1125 | else if (http->tls) | |
25731360 | 1126 | return (_httpTLSPending(http)); |
e6b1a6a9 MS |
1127 | #endif /* HAVE_SSL */ |
1128 | ||
1129 | return (0); | |
1130 | } | |
1131 | ||
1132 | ||
5ec1fd3d MS |
1133 | /* |
1134 | * 'httpGetRemaining()' - Get the number of remaining bytes in the message | |
1135 | * body or current chunk. | |
1136 | * | |
1137 | * The @link httpIsChunked@ function can be used to determine whether the | |
1138 | * message body is chunked or fixed-length. | |
1139 | * | |
e1f19878 | 1140 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
1141 | */ |
1142 | ||
1143 | size_t /* O - Remaining bytes */ | |
1144 | httpGetRemaining(http_t *http) /* I - HTTP connection */ | |
1145 | { | |
7e86f2f6 | 1146 | return (http ? (size_t)http->data_remaining : 0); |
5ec1fd3d MS |
1147 | } |
1148 | ||
1149 | ||
ef416fc2 | 1150 | /* |
1151 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1152 | */ | |
1153 | ||
98d88c8d | 1154 | char * /* O - Line or @code NULL@ */ |
ef416fc2 | 1155 | httpGets(char *line, /* I - Line to read into */ |
1156 | int length, /* I - Max length of buffer */ | |
e6b1a6a9 | 1157 | http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1158 | { |
7e86f2f6 MS |
1159 | char *lineptr, /* Pointer into line */ |
1160 | *lineend, /* End of line */ | |
1161 | *bufptr, /* Pointer into input buffer */ | |
1162 | *bufend; /* Pointer to end of buffer */ | |
1163 | ssize_t bytes; /* Number of bytes read */ | |
1164 | int eol; /* End-of-line? */ | |
ef416fc2 | 1165 | |
1166 | ||
807315e6 | 1167 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", (void *)line, length, (void *)http)); |
ef416fc2 | 1168 | |
0fa6c7fa | 1169 | if (!http || !line || length <= 1) |
ef416fc2 | 1170 | return (NULL); |
1171 | ||
1172 | /* | |
1173 | * Read a line from the buffer... | |
1174 | */ | |
f11a948a MS |
1175 | |
1176 | http->error = 0; | |
1177 | lineptr = line; | |
1178 | lineend = line + length - 1; | |
1179 | eol = 0; | |
ef416fc2 | 1180 | |
1181 | while (lineptr < lineend) | |
1182 | { | |
1183 | /* | |
1184 | * Pre-load the buffer as needed... | |
1185 | */ | |
1186 | ||
1187 | #ifdef WIN32 | |
1188 | WSASetLastError(0); | |
1189 | #else | |
1190 | errno = 0; | |
1191 | #endif /* WIN32 */ | |
1192 | ||
1193 | while (http->used == 0) | |
1194 | { | |
1195 | /* | |
1196 | * No newline; see if there is more data to be read... | |
1197 | */ | |
1198 | ||
85dda01c | 1199 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1200 | { |
f228370c MS |
1201 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1202 | continue; | |
1203 | ||
e07d4801 | 1204 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1205 | #ifdef WIN32 |
1206 | http->error = WSAETIMEDOUT; | |
1207 | #else | |
89d46774 | 1208 | http->error = ETIMEDOUT; |
b86bc4cf | 1209 | #endif /* WIN32 */ |
ef416fc2 | 1210 | return (NULL); |
89d46774 | 1211 | } |
ef416fc2 | 1212 | |
7e86f2f6 | 1213 | bytes = http_read(http, http->buffer + http->used, (size_t)(HTTP_MAX_BUFFER - http->used)); |
ef416fc2 | 1214 | |
7e86f2f6 | 1215 | DEBUG_printf(("4httpGets: read " CUPS_LLFMT " bytes.", CUPS_LLCAST bytes)); |
12f89d24 | 1216 | |
ef416fc2 | 1217 | if (bytes < 0) |
1218 | { | |
1219 | /* | |
1220 | * Nope, can't get a line this time... | |
1221 | */ | |
1222 | ||
1223 | #ifdef WIN32 | |
cc754834 MS |
1224 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1225 | ||
10d09e33 | 1226 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1227 | continue; |
10d09e33 MS |
1228 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1229 | { | |
1230 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1231 | continue; | |
1232 | ||
1233 | http->error = WSAGetLastError(); | |
1234 | } | |
cc754834 | 1235 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1236 | { |
1237 | http->error = WSAGetLastError(); | |
1238 | continue; | |
1239 | } | |
1240 | ||
ef416fc2 | 1241 | #else |
e07d4801 | 1242 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1243 | |
10d09e33 | 1244 | if (errno == EINTR) |
ef416fc2 | 1245 | continue; |
10d09e33 MS |
1246 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1247 | { | |
1248 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1249 | continue; | |
1250 | else if (!http->timeout_cb && errno == EAGAIN) | |
1251 | continue; | |
1252 | ||
1253 | http->error = errno; | |
1254 | } | |
ef416fc2 | 1255 | else if (errno != http->error) |
1256 | { | |
1257 | http->error = errno; | |
1258 | continue; | |
1259 | } | |
1260 | #endif /* WIN32 */ | |
1261 | ||
1262 | return (NULL); | |
1263 | } | |
1264 | else if (bytes == 0) | |
1265 | { | |
1266 | http->error = EPIPE; | |
1267 | ||
1268 | return (NULL); | |
1269 | } | |
1270 | ||
1271 | /* | |
1272 | * Yup, update the amount used... | |
1273 | */ | |
1274 | ||
7e86f2f6 | 1275 | http->used += (int)bytes; |
ef416fc2 | 1276 | } |
1277 | ||
1278 | /* | |
1279 | * Now copy as much of the current line as possible... | |
1280 | */ | |
1281 | ||
1282 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1283 | lineptr < lineend && bufptr < bufend;) | |
1284 | { | |
1285 | if (*bufptr == 0x0a) | |
1286 | { | |
1287 | eol = 1; | |
1288 | bufptr ++; | |
1289 | break; | |
1290 | } | |
1291 | else if (*bufptr == 0x0d) | |
1292 | bufptr ++; | |
1293 | else | |
1294 | *lineptr++ = *bufptr++; | |
1295 | } | |
1296 | ||
b86bc4cf | 1297 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1298 | if (http->used > 0) |
07623986 | 1299 | memmove(http->buffer, bufptr, (size_t)http->used); |
ef416fc2 | 1300 | |
1301 | if (eol) | |
1302 | { | |
1303 | /* | |
1304 | * End of line... | |
1305 | */ | |
1306 | ||
1307 | http->activity = time(NULL); | |
1308 | ||
1309 | *lineptr = '\0'; | |
ef55b745 | 1310 | |
e07d4801 | 1311 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1312 | |
1313 | return (line); | |
1314 | } | |
1315 | } | |
1316 | ||
e07d4801 | 1317 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1318 | |
1319 | return (NULL); | |
1320 | } | |
1321 | ||
1322 | ||
a2326b5b MS |
1323 | /* |
1324 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1325 | */ | |
1326 | ||
1327 | http_state_t /* O - HTTP state */ | |
e6b1a6a9 | 1328 | httpGetState(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1329 | { |
a469f8a5 | 1330 | return (http ? http->state : HTTP_STATE_ERROR); |
a2326b5b MS |
1331 | } |
1332 | ||
1333 | ||
1334 | /* | |
1335 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1336 | * | |
8072030b | 1337 | * @since CUPS 1.2/macOS 10.5@ |
a2326b5b MS |
1338 | */ |
1339 | ||
1340 | http_status_t /* O - HTTP status */ | |
e6b1a6a9 | 1341 | httpGetStatus(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1342 | { |
cb7f98ee | 1343 | return (http ? http->status : HTTP_STATUS_ERROR); |
a2326b5b MS |
1344 | } |
1345 | ||
1346 | ||
1347 | /* | |
1348 | * 'httpGetSubField()' - Get a sub-field value. | |
1349 | * | |
53af7f21 | 1350 | * @deprecated@ @exclude all@ |
a2326b5b MS |
1351 | */ |
1352 | ||
98d88c8d | 1353 | char * /* O - Value or @code NULL@ */ |
e6b1a6a9 | 1354 | httpGetSubField(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1355 | http_field_t field, /* I - Field index */ |
1356 | const char *name, /* I - Name of sub-field */ | |
1357 | char *value) /* O - Value string */ | |
1358 | { | |
1359 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1360 | } | |
1361 | ||
1362 | ||
1363 | /* | |
1364 | * 'httpGetSubField2()' - Get a sub-field value. | |
1365 | * | |
8072030b | 1366 | * @since CUPS 1.2/macOS 10.5@ |
a2326b5b MS |
1367 | */ |
1368 | ||
98d88c8d | 1369 | char * /* O - Value or @code NULL@ */ |
e6b1a6a9 | 1370 | httpGetSubField2(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1371 | http_field_t field, /* I - Field index */ |
1372 | const char *name, /* I - Name of sub-field */ | |
1373 | char *value, /* O - Value string */ | |
1374 | int valuelen) /* I - Size of value buffer */ | |
1375 | { | |
1376 | const char *fptr; /* Pointer into field */ | |
1377 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1378 | *ptr, /* Pointer into string buffer */ | |
1379 | *end; /* End of value buffer */ | |
1380 | ||
807315e6 | 1381 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, valuelen=%d)", (void *)http, field, name, (void *)value, valuelen)); |
a2326b5b MS |
1382 | |
1383 | if (!http || !name || !value || valuelen < 2 || | |
1384 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1385 | return (NULL); | |
1386 | ||
1387 | end = value + valuelen - 1; | |
1388 | ||
1389 | for (fptr = http->fields[field]; *fptr;) | |
1390 | { | |
1391 | /* | |
1392 | * Skip leading whitespace... | |
1393 | */ | |
1394 | ||
1395 | while (_cups_isspace(*fptr)) | |
1396 | fptr ++; | |
1397 | ||
1398 | if (*fptr == ',') | |
1399 | { | |
1400 | fptr ++; | |
1401 | continue; | |
1402 | } | |
1403 | ||
1404 | /* | |
1405 | * Get the sub-field name... | |
1406 | */ | |
1407 | ||
1408 | for (ptr = temp; | |
1409 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1410 | ptr < (temp + sizeof(temp) - 1); | |
1411 | *ptr++ = *fptr++); | |
1412 | ||
1413 | *ptr = '\0'; | |
1414 | ||
1415 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1416 | ||
1417 | /* | |
1418 | * Skip trailing chars up to the '='... | |
1419 | */ | |
1420 | ||
1421 | while (_cups_isspace(*fptr)) | |
1422 | fptr ++; | |
1423 | ||
1424 | if (!*fptr) | |
1425 | break; | |
1426 | ||
1427 | if (*fptr != '=') | |
1428 | continue; | |
1429 | ||
1430 | /* | |
1431 | * Skip = and leading whitespace... | |
1432 | */ | |
1433 | ||
1434 | fptr ++; | |
1435 | ||
1436 | while (_cups_isspace(*fptr)) | |
1437 | fptr ++; | |
1438 | ||
1439 | if (*fptr == '\"') | |
1440 | { | |
1441 | /* | |
1442 | * Read quoted string... | |
1443 | */ | |
1444 | ||
1445 | for (ptr = value, fptr ++; | |
1446 | *fptr && *fptr != '\"' && ptr < end; | |
1447 | *ptr++ = *fptr++); | |
1448 | ||
1449 | *ptr = '\0'; | |
1450 | ||
1451 | while (*fptr && *fptr != '\"') | |
1452 | fptr ++; | |
1453 | ||
1454 | if (*fptr) | |
1455 | fptr ++; | |
1456 | } | |
1457 | else | |
1458 | { | |
1459 | /* | |
1460 | * Read unquoted string... | |
1461 | */ | |
1462 | ||
1463 | for (ptr = value; | |
1464 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1465 | *ptr++ = *fptr++); | |
1466 | ||
1467 | *ptr = '\0'; | |
1468 | ||
1469 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1470 | fptr ++; | |
1471 | } | |
1472 | ||
1473 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1474 | ||
1475 | /* | |
1476 | * See if this is the one... | |
1477 | */ | |
1478 | ||
1479 | if (!strcmp(name, temp)) | |
1480 | { | |
1481 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1482 | return (value); | |
1483 | } | |
1484 | } | |
1485 | ||
1486 | value[0] = '\0'; | |
1487 | ||
1488 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1489 | ||
1490 | return (NULL); | |
1491 | } | |
1492 | ||
1493 | ||
1494 | /* | |
1495 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1496 | */ | |
1497 | ||
1498 | http_version_t /* O - Version number */ | |
e6b1a6a9 | 1499 | httpGetVersion(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1500 | { |
a469f8a5 | 1501 | return (http ? http->version : HTTP_VERSION_1_0); |
a2326b5b MS |
1502 | } |
1503 | ||
1504 | ||
ef416fc2 | 1505 | /* |
1506 | * 'httpHead()' - Send a HEAD request to the server. | |
1507 | */ | |
1508 | ||
1509 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1510 | httpHead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1511 | const char *uri) /* I - URI for head */ |
1512 | { | |
807315e6 | 1513 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", (void *)http, uri)); |
cb7f98ee | 1514 | return (http_send(http, HTTP_STATE_HEAD, uri)); |
ef416fc2 | 1515 | } |
1516 | ||
1517 | ||
1518 | /* | |
1519 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1520 | * default HTTP proxy (if any). | |
1521 | */ | |
1522 | ||
1523 | void | |
1524 | httpInitialize(void) | |
1525 | { | |
6d2f911b MS |
1526 | static int initialized = 0; /* Have we been called before? */ |
1527 | #ifdef WIN32 | |
1528 | WSADATA winsockdata; /* WinSock data */ | |
1529 | #endif /* WIN32 */ | |
ef416fc2 | 1530 | |
ef416fc2 | 1531 | |
6d2f911b MS |
1532 | _cupsGlobalLock(); |
1533 | if (initialized) | |
1534 | { | |
1535 | _cupsGlobalUnlock(); | |
1536 | return; | |
1537 | } | |
1538 | ||
1539 | #ifdef WIN32 | |
c7017ecc | 1540 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1541 | |
fa73b229 | 1542 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1543 | /* |
1544 | * Ignore SIGPIPE signals... | |
1545 | */ | |
1546 | ||
fa73b229 | 1547 | # ifdef HAVE_SIGSET |
1548 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1549 | |
fa73b229 | 1550 | # elif defined(HAVE_SIGACTION) |
1551 | struct sigaction action; /* POSIX sigaction data */ | |
1552 | ||
1553 | ||
ef416fc2 | 1554 | memset(&action, 0, sizeof(action)); |
1555 | action.sa_handler = SIG_IGN; | |
1556 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1557 | |
fa73b229 | 1558 | # else |
ef416fc2 | 1559 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1560 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1561 | #endif /* WIN32 */ |
1562 | ||
2c85b752 | 1563 | # ifdef HAVE_SSL |
25731360 | 1564 | _httpTLSInitialize(); |
2c85b752 | 1565 | # endif /* HAVE_SSL */ |
6d2f911b MS |
1566 | |
1567 | initialized = 1; | |
1568 | _cupsGlobalUnlock(); | |
ef416fc2 | 1569 | } |
1570 | ||
1571 | ||
5ec1fd3d MS |
1572 | /* |
1573 | * 'httpIsChunked()' - Report whether a message body is chunked. | |
1574 | * | |
1575 | * This function returns non-zero if the message body is composed of | |
1576 | * variable-length chunks. | |
1577 | * | |
e1f19878 | 1578 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
1579 | */ |
1580 | ||
1581 | int /* O - 1 if chunked, 0 if not */ | |
1582 | httpIsChunked(http_t *http) /* I - HTTP connection */ | |
1583 | { | |
1584 | return (http ? http->data_encoding == HTTP_ENCODING_CHUNKED : 0); | |
1585 | } | |
1586 | ||
1587 | ||
1588 | /* | |
1589 | * 'httpIsEncrypted()' - Report whether a connection is encrypted. | |
1590 | * | |
1591 | * This function returns non-zero if the connection is currently encrypted. | |
1592 | * | |
e1f19878 | 1593 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
1594 | */ |
1595 | ||
1596 | int /* O - 1 if encrypted, 0 if not */ | |
1597 | httpIsEncrypted(http_t *http) /* I - HTTP connection */ | |
1598 | { | |
1599 | return (http ? http->tls != NULL : 0); | |
1600 | } | |
1601 | ||
1602 | ||
ef416fc2 | 1603 | /* |
1604 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1605 | */ | |
1606 | ||
1607 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1608 | httpOptions(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1609 | const char *uri) /* I - URI for options */ |
1610 | { | |
cb7f98ee | 1611 | return (http_send(http, HTTP_STATE_OPTIONS, uri)); |
ef416fc2 | 1612 | } |
1613 | ||
1614 | ||
6d2f911b | 1615 | /* |
a469f8a5 | 1616 | * 'httpPeek()' - Peek at data from a HTTP connection. |
6d2f911b MS |
1617 | * |
1618 | * This function copies available data from the given HTTP connection, reading | |
1619 | * a buffer as needed. The data is still available for reading using | |
98d88c8d | 1620 | * @link httpRead2@. |
6d2f911b MS |
1621 | * |
1622 | * For non-blocking connections the usual timeouts apply. | |
a469f8a5 | 1623 | * |
8072030b | 1624 | * @since CUPS 1.7/macOS 10.9@ |
6d2f911b MS |
1625 | */ |
1626 | ||
1627 | ssize_t /* O - Number of bytes copied */ | |
e6b1a6a9 | 1628 | httpPeek(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
1629 | char *buffer, /* I - Buffer for data */ |
1630 | size_t length) /* I - Maximum number of bytes */ | |
6d2f911b MS |
1631 | { |
1632 | ssize_t bytes; /* Bytes read */ | |
1633 | char len[32]; /* Length string */ | |
1634 | ||
1635 | ||
807315e6 | 1636 | DEBUG_printf(("httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
6d2f911b MS |
1637 | |
1638 | if (http == NULL || buffer == NULL) | |
1639 | return (-1); | |
1640 | ||
1641 | http->activity = time(NULL); | |
1642 | http->error = 0; | |
1643 | ||
1644 | if (length <= 0) | |
1645 | return (0); | |
1646 | ||
a469f8a5 | 1647 | if (http->data_encoding == HTTP_ENCODING_CHUNKED && |
6d2f911b MS |
1648 | http->data_remaining <= 0) |
1649 | { | |
a469f8a5 | 1650 | DEBUG_puts("2httpPeek: Getting chunk length..."); |
6d2f911b MS |
1651 | |
1652 | if (httpGets(len, sizeof(len), http) == NULL) | |
1653 | { | |
a469f8a5 | 1654 | DEBUG_puts("1httpPeek: Could not get length!"); |
6d2f911b MS |
1655 | return (0); |
1656 | } | |
1657 | ||
db8b865d MS |
1658 | if (!len[0]) |
1659 | { | |
1660 | DEBUG_puts("1httpPeek: Blank chunk length, trying again..."); | |
1661 | if (!httpGets(len, sizeof(len), http)) | |
1662 | { | |
1663 | DEBUG_puts("1httpPeek: Could not get chunk length."); | |
1664 | return (0); | |
1665 | } | |
1666 | } | |
1667 | ||
6d2f911b | 1668 | http->data_remaining = strtoll(len, NULL, 16); |
db8b865d | 1669 | |
6d2f911b MS |
1670 | if (http->data_remaining < 0) |
1671 | { | |
a469f8a5 | 1672 | DEBUG_puts("1httpPeek: Negative chunk length!"); |
6d2f911b MS |
1673 | return (0); |
1674 | } | |
1675 | } | |
1676 | ||
a469f8a5 | 1677 | DEBUG_printf(("2httpPeek: data_remaining=" CUPS_LLFMT, |
6d2f911b MS |
1678 | CUPS_LLCAST http->data_remaining)); |
1679 | ||
0fa6c7fa | 1680 | if (http->data_remaining <= 0 && http->data_encoding != HTTP_ENCODING_FIELDS) |
6d2f911b MS |
1681 | { |
1682 | /* | |
1683 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1684 | * data, go idle... | |
1685 | */ | |
1686 | ||
c41769ff | 1687 | #ifdef HAVE_LIBZ |
d423d83d | 1688 | if (http->coding >= _HTTP_CODING_GUNZIP) |
c41769ff MS |
1689 | http_content_coding_finish(http); |
1690 | #endif /* HAVE_LIBZ */ | |
1691 | ||
0fa6c7fa MS |
1692 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
1693 | httpGets(len, sizeof(len), http); | |
1694 | ||
a469f8a5 | 1695 | if (http->state == HTTP_STATE_POST_RECV) |
6d2f911b MS |
1696 | http->state ++; |
1697 | else | |
cb7f98ee | 1698 | http->state = HTTP_STATE_STATUS; |
a469f8a5 MS |
1699 | |
1700 | DEBUG_printf(("1httpPeek: 0-length chunk, set state to %s.", | |
48bd1142 | 1701 | httpStateString(http->state))); |
6d2f911b MS |
1702 | |
1703 | /* | |
1704 | * Prevent future reads for this request... | |
1705 | */ | |
1706 | ||
a469f8a5 | 1707 | http->data_encoding = HTTP_ENCODING_FIELDS; |
6d2f911b MS |
1708 | |
1709 | return (0); | |
1710 | } | |
0fa6c7fa | 1711 | else if (length > (size_t)http->data_remaining) |
6d2f911b MS |
1712 | length = (size_t)http->data_remaining; |
1713 | ||
0fa6c7fa MS |
1714 | #ifdef HAVE_LIBZ |
1715 | if (http->used == 0 && | |
d423d83d MS |
1716 | (http->coding == _HTTP_CODING_IDENTITY || |
1717 | (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in == 0))) | |
0fa6c7fa | 1718 | #else |
6d2f911b | 1719 | if (http->used == 0) |
0fa6c7fa | 1720 | #endif /* HAVE_LIBZ */ |
6d2f911b MS |
1721 | { |
1722 | /* | |
1723 | * Buffer small reads for better performance... | |
1724 | */ | |
1725 | ||
3e7fe0ca MS |
1726 | ssize_t buflen; /* Length of read for buffer */ |
1727 | ||
f228370c MS |
1728 | if (!http->blocking) |
1729 | { | |
85dda01c | 1730 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1731 | { |
1732 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1733 | continue; | |
1734 | ||
1735 | return (0); | |
1736 | } | |
1737 | } | |
6d2f911b | 1738 | |
7e86f2f6 | 1739 | if ((size_t)http->data_remaining > sizeof(http->buffer)) |
3e7fe0ca | 1740 | buflen = sizeof(http->buffer); |
6d2f911b | 1741 | else |
7e86f2f6 | 1742 | buflen = (ssize_t)http->data_remaining; |
3e7fe0ca | 1743 | |
a469f8a5 | 1744 | DEBUG_printf(("2httpPeek: Reading %d bytes into buffer.", (int)buflen)); |
7e86f2f6 | 1745 | bytes = http_read(http, http->buffer, (size_t)buflen); |
3e7fe0ca | 1746 | |
a469f8a5 | 1747 | DEBUG_printf(("2httpPeek: Read " CUPS_LLFMT " bytes into buffer.", |
3e7fe0ca | 1748 | CUPS_LLCAST bytes)); |
db8b865d MS |
1749 | if (bytes > 0) |
1750 | { | |
3e7fe0ca | 1751 | #ifdef DEBUG |
db8b865d | 1752 | http_debug_hex("httpPeek", http->buffer, (int)bytes); |
3e7fe0ca MS |
1753 | #endif /* DEBUG */ |
1754 | ||
7e86f2f6 | 1755 | http->used = (int)bytes; |
db8b865d | 1756 | } |
6d2f911b MS |
1757 | } |
1758 | ||
c1420c87 | 1759 | #ifdef HAVE_LIBZ |
d423d83d | 1760 | if (http->coding >= _HTTP_CODING_GUNZIP) |
c1420c87 | 1761 | { |
db8b865d | 1762 | # ifdef HAVE_INFLATECOPY |
c1420c87 | 1763 | int zerr; /* Decompressor error */ |
c1420c87 MS |
1764 | z_stream stream; /* Copy of decompressor stream */ |
1765 | ||
0fa6c7fa MS |
1766 | if (http->used > 0 && http->stream.avail_in < HTTP_MAX_BUFFER) |
1767 | { | |
1768 | size_t buflen = buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
1769 | /* Number of bytes to copy */ | |
1770 | ||
1771 | if (http->stream.avail_in > 0 && | |
291e4727 MS |
1772 | http->stream.next_in > http->sbuffer) |
1773 | memmove(http->sbuffer, http->stream.next_in, http->stream.avail_in); | |
0fa6c7fa | 1774 | |
291e4727 | 1775 | http->stream.next_in = http->sbuffer; |
0fa6c7fa | 1776 | |
7e86f2f6 MS |
1777 | if (buflen > (size_t)http->data_remaining) |
1778 | buflen = (size_t)http->data_remaining; | |
0fa6c7fa | 1779 | |
7e86f2f6 MS |
1780 | if (buflen > (size_t)http->used) |
1781 | buflen = (size_t)http->used; | |
0fa6c7fa MS |
1782 | |
1783 | DEBUG_printf(("1httpPeek: Copying %d more bytes of data into " | |
1784 | "decompression buffer.", (int)buflen)); | |
1785 | ||
291e4727 | 1786 | memcpy(http->sbuffer + http->stream.avail_in, http->buffer, buflen); |
0fa6c7fa | 1787 | http->stream.avail_in += buflen; |
e7312eb4 MS |
1788 | http->used -= (int)buflen; |
1789 | http->data_remaining -= (off_t)buflen; | |
0fa6c7fa MS |
1790 | |
1791 | if (http->used > 0) | |
07623986 | 1792 | memmove(http->buffer, http->buffer + buflen, (size_t)http->used); |
0fa6c7fa | 1793 | } |
c1420c87 MS |
1794 | |
1795 | DEBUG_printf(("2httpPeek: length=%d, avail_in=%d", (int)length, | |
0fa6c7fa | 1796 | (int)http->stream.avail_in)); |
c1420c87 MS |
1797 | |
1798 | if (inflateCopy(&stream, &(http->stream)) != Z_OK) | |
1799 | { | |
1800 | DEBUG_puts("2httpPeek: Unable to copy decompressor stream."); | |
1801 | http->error = ENOMEM; | |
1802 | return (-1); | |
1803 | } | |
1804 | ||
c1420c87 | 1805 | stream.next_out = (Bytef *)buffer; |
7e86f2f6 | 1806 | stream.avail_out = (uInt)length; |
c1420c87 MS |
1807 | |
1808 | zerr = inflate(&stream, Z_SYNC_FLUSH); | |
1809 | inflateEnd(&stream); | |
1810 | ||
1811 | if (zerr < Z_OK) | |
1812 | { | |
1813 | DEBUG_printf(("2httpPeek: zerr=%d", zerr)); | |
0fa6c7fa | 1814 | #ifdef DEBUG |
291e4727 | 1815 | http_debug_hex("2httpPeek", (char *)http->sbuffer, (int)http->stream.avail_in); |
0fa6c7fa MS |
1816 | #endif /* DEBUG */ |
1817 | ||
c1420c87 MS |
1818 | http->error = EIO; |
1819 | return (-1); | |
1820 | } | |
1821 | ||
7e86f2f6 | 1822 | bytes = (ssize_t)(length - http->stream.avail_out); |
db8b865d MS |
1823 | |
1824 | # else | |
1825 | DEBUG_puts("2httpPeek: No inflateCopy on this platform, httpPeek does not " | |
1826 | "work with compressed streams."); | |
1827 | return (-1); | |
1828 | # endif /* HAVE_INFLATECOPY */ | |
c1420c87 MS |
1829 | } |
1830 | else | |
1831 | #endif /* HAVE_LIBZ */ | |
6d2f911b MS |
1832 | if (http->used > 0) |
1833 | { | |
1834 | if (length > (size_t)http->used) | |
1835 | length = (size_t)http->used; | |
1836 | ||
1837 | bytes = (ssize_t)length; | |
1838 | ||
a469f8a5 | 1839 | DEBUG_printf(("2httpPeek: grabbing %d bytes from input buffer...", |
6d2f911b MS |
1840 | (int)bytes)); |
1841 | ||
1842 | memcpy(buffer, http->buffer, length); | |
1843 | } | |
1844 | else | |
1845 | bytes = 0; | |
1846 | ||
1847 | if (bytes < 0) | |
1848 | { | |
1849 | #ifdef WIN32 | |
cc754834 MS |
1850 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1851 | bytes = 0; | |
1852 | else | |
1853 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1854 | #else |
1855 | if (errno == EINTR || errno == EAGAIN) | |
1856 | bytes = 0; | |
1857 | else | |
1858 | http->error = errno; | |
1859 | #endif /* WIN32 */ | |
1860 | } | |
1861 | else if (bytes == 0) | |
1862 | { | |
1863 | http->error = EPIPE; | |
1864 | return (0); | |
1865 | } | |
1866 | ||
6d2f911b MS |
1867 | return (bytes); |
1868 | } | |
1869 | ||
1870 | ||
ef416fc2 | 1871 | /* |
1872 | * 'httpPost()' - Send a POST request to the server. | |
1873 | */ | |
1874 | ||
1875 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1876 | httpPost(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1877 | const char *uri) /* I - URI for post */ |
1878 | { | |
cb7f98ee | 1879 | return (http_send(http, HTTP_STATE_POST, uri)); |
ef416fc2 | 1880 | } |
1881 | ||
1882 | ||
1883 | /* | |
1884 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1885 | * |
1886 | * @private@ | |
ef416fc2 | 1887 | */ |
1888 | ||
1889 | int /* O - Number of bytes written */ | |
e6b1a6a9 | 1890 | httpPrintf(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1891 | const char *format, /* I - printf-style format string */ |
1892 | ...) /* I - Additional args as needed */ | |
1893 | { | |
7e86f2f6 | 1894 | ssize_t bytes; /* Number of bytes to write */ |
ef416fc2 | 1895 | char buf[16384]; /* Buffer for formatted string */ |
1896 | va_list ap; /* Variable argument pointer */ | |
1897 | ||
1898 | ||
807315e6 | 1899 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", (void *)http, format)); |
ef416fc2 | 1900 | |
1901 | va_start(ap, format); | |
1902 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1903 | va_end(ap); | |
1904 | ||
7e86f2f6 | 1905 | DEBUG_printf(("3httpPrintf: (" CUPS_LLFMT " bytes) %s", CUPS_LLCAST bytes, buf)); |
ef416fc2 | 1906 | |
a469f8a5 | 1907 | if (http->data_encoding == HTTP_ENCODING_FIELDS) |
7e86f2f6 | 1908 | return ((int)httpWrite2(http, buf, (size_t)bytes)); |
d09495fa | 1909 | else |
ef416fc2 | 1910 | { |
d09495fa | 1911 | if (http->wused) |
1912 | { | |
e07d4801 | 1913 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1914 | |
d09495fa | 1915 | if (httpFlushWrite(http) < 0) |
1916 | return (-1); | |
1917 | } | |
ef416fc2 | 1918 | |
7e86f2f6 | 1919 | return ((int)http_write(http, buf, (size_t)bytes)); |
d09495fa | 1920 | } |
ef416fc2 | 1921 | } |
1922 | ||
1923 | ||
1924 | /* | |
1925 | * 'httpPut()' - Send a PUT request to the server. | |
1926 | */ | |
1927 | ||
1928 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1929 | httpPut(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1930 | const char *uri) /* I - URI to put */ |
1931 | { | |
807315e6 | 1932 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", (void *)http, uri)); |
cb7f98ee | 1933 | return (http_send(http, HTTP_STATE_PUT, uri)); |
ef416fc2 | 1934 | } |
1935 | ||
1936 | ||
1937 | /* | |
1938 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1939 | * |
1940 | * This function is deprecated. Use the httpRead2() function which can | |
1941 | * read more than 2GB of data. | |
1942 | * | |
53af7f21 | 1943 | * @deprecated@ @exclude all@ |
ef416fc2 | 1944 | */ |
1945 | ||
1946 | int /* O - Number of bytes read */ | |
e6b1a6a9 | 1947 | httpRead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1948 | char *buffer, /* I - Buffer for data */ |
1949 | int length) /* I - Maximum number of bytes */ | |
1950 | { | |
7e86f2f6 | 1951 | return ((int)httpRead2(http, buffer, (size_t)length)); |
a4d04587 | 1952 | } |
1953 | ||
1954 | ||
1955 | /* | |
1956 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1957 | * |
8072030b | 1958 | * @since CUPS 1.2/macOS 10.5@ |
a4d04587 | 1959 | */ |
1960 | ||
1961 | ssize_t /* O - Number of bytes read */ | |
e6b1a6a9 | 1962 | httpRead2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 1963 | char *buffer, /* I - Buffer for data */ |
1964 | size_t length) /* I - Maximum number of bytes */ | |
1965 | { | |
1966 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1967 | |
1968 | ||
db8b865d | 1969 | #ifdef HAVE_LIBZ |
807315e6 | 1970 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT ") coding=%d data_encoding=%d data_remaining=" CUPS_LLFMT, (void *)http, (void *)buffer, CUPS_LLCAST length, http->coding, http->data_encoding, CUPS_LLCAST http->data_remaining)); |
db8b865d | 1971 | #else |
807315e6 | 1972 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT ") data_encoding=%d data_remaining=" CUPS_LLFMT, (void *)http, (void *)buffer, CUPS_LLCAST length, http->data_encoding, CUPS_LLCAST http->data_remaining)); |
db8b865d | 1973 | #endif /* HAVE_LIBZ */ |
ef416fc2 | 1974 | |
1975 | if (http == NULL || buffer == NULL) | |
1976 | return (-1); | |
1977 | ||
1978 | http->activity = time(NULL); | |
f11a948a | 1979 | http->error = 0; |
ef416fc2 | 1980 | |
1981 | if (length <= 0) | |
1982 | return (0); | |
1983 | ||
a469f8a5 | 1984 | #ifdef HAVE_LIBZ |
d423d83d | 1985 | if (http->coding >= _HTTP_CODING_GUNZIP) |
ef416fc2 | 1986 | { |
0fa6c7fa | 1987 | do |
f228370c | 1988 | { |
0fa6c7fa | 1989 | if (http->stream.avail_in > 0) |
f228370c | 1990 | { |
0fa6c7fa | 1991 | int zerr; /* Decompressor error */ |
f228370c | 1992 | |
0fa6c7fa MS |
1993 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d", |
1994 | (int)http->stream.avail_in, (int)length)); | |
ef416fc2 | 1995 | |
0fa6c7fa | 1996 | http->stream.next_out = (Bytef *)buffer; |
7e86f2f6 | 1997 | http->stream.avail_out = (uInt)length; |
83e08001 | 1998 | |
0fa6c7fa | 1999 | if ((zerr = inflate(&(http->stream), Z_SYNC_FLUSH)) < Z_OK) |
83e08001 | 2000 | { |
0fa6c7fa | 2001 | DEBUG_printf(("2httpRead2: zerr=%d", zerr)); |
12f89d24 | 2002 | #ifdef DEBUG |
291e4727 | 2003 | http_debug_hex("2httpRead2", (char *)http->sbuffer, (int)http->stream.avail_in); |
12f89d24 | 2004 | #endif /* DEBUG */ |
83e08001 | 2005 | |
0fa6c7fa MS |
2006 | http->error = EIO; |
2007 | return (-1); | |
2008 | } | |
a469f8a5 | 2009 | |
7e86f2f6 | 2010 | bytes = (ssize_t)(length - http->stream.avail_out); |
a469f8a5 | 2011 | |
0fa6c7fa MS |
2012 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d, bytes=%d", |
2013 | http->stream.avail_in, http->stream.avail_out, | |
2014 | (int)bytes)); | |
2015 | } | |
2016 | else | |
2017 | bytes = 0; | |
a469f8a5 | 2018 | |
0fa6c7fa MS |
2019 | if (bytes == 0) |
2020 | { | |
7e86f2f6 | 2021 | ssize_t buflen = HTTP_MAX_BUFFER - (ssize_t)http->stream.avail_in; |
0fa6c7fa | 2022 | /* Additional bytes for buffer */ |
a469f8a5 | 2023 | |
0fa6c7fa MS |
2024 | if (buflen > 0) |
2025 | { | |
2026 | if (http->stream.avail_in > 0 && | |
291e4727 MS |
2027 | http->stream.next_in > http->sbuffer) |
2028 | memmove(http->sbuffer, http->stream.next_in, http->stream.avail_in); | |
0fa6c7fa | 2029 | |
291e4727 | 2030 | http->stream.next_in = http->sbuffer; |
0fa6c7fa MS |
2031 | |
2032 | DEBUG_printf(("1httpRead2: Reading up to %d more bytes of data into " | |
2033 | "decompression buffer.", (int)buflen)); | |
2034 | ||
2035 | if (http->data_remaining > 0) | |
2036 | { | |
2037 | if (buflen > http->data_remaining) | |
7e86f2f6 | 2038 | buflen = (ssize_t)http->data_remaining; |
0fa6c7fa | 2039 | |
291e4727 | 2040 | bytes = http_read_buffered(http, (char *)http->sbuffer + http->stream.avail_in, (size_t)buflen); |
0fa6c7fa MS |
2041 | } |
2042 | else if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
291e4727 | 2043 | bytes = http_read_chunk(http, (char *)http->sbuffer + http->stream.avail_in, (size_t)buflen); |
0fa6c7fa MS |
2044 | else |
2045 | bytes = 0; | |
2046 | ||
2047 | if (bytes < 0) | |
2048 | return (bytes); | |
2049 | else if (bytes == 0) | |
2050 | break; | |
2051 | ||
db8b865d MS |
2052 | DEBUG_printf(("1httpRead2: Adding " CUPS_LLFMT " bytes to " |
2053 | "decompression buffer.", CUPS_LLCAST bytes)); | |
2054 | ||
0fa6c7fa | 2055 | http->data_remaining -= bytes; |
7e86f2f6 | 2056 | http->stream.avail_in += (uInt)bytes; |
db8b865d | 2057 | |
cb7f98ee MS |
2058 | if (http->data_remaining <= 0 && |
2059 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2060 | { | |
2061 | /* | |
2062 | * Read the trailing blank line now... | |
2063 | */ | |
2064 | ||
2065 | char len[32]; /* Length string */ | |
2066 | ||
2067 | httpGets(len, sizeof(len), http); | |
2068 | } | |
2069 | ||
db8b865d | 2070 | bytes = 0; |
0fa6c7fa MS |
2071 | } |
2072 | else | |
2073 | return (0); | |
2074 | } | |
a469f8a5 | 2075 | } |
0fa6c7fa | 2076 | while (bytes == 0); |
a469f8a5 MS |
2077 | } |
2078 | else | |
2079 | #endif /* HAVE_LIBZ */ | |
0fa6c7fa | 2080 | if (http->data_remaining == 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 2081 | { |
0fa6c7fa | 2082 | if ((bytes = http_read_chunk(http, buffer, length)) > 0) |
cb7f98ee | 2083 | { |
0fa6c7fa | 2084 | http->data_remaining -= bytes; |
cb7f98ee MS |
2085 | |
2086 | if (http->data_remaining <= 0) | |
2087 | { | |
2088 | /* | |
2089 | * Read the trailing blank line now... | |
2090 | */ | |
2091 | ||
2092 | char len[32]; /* Length string */ | |
2093 | ||
2094 | httpGets(len, sizeof(len), http); | |
2095 | } | |
2096 | } | |
ef416fc2 | 2097 | } |
0fa6c7fa | 2098 | else if (http->data_remaining <= 0) |
ef416fc2 | 2099 | { |
0fa6c7fa MS |
2100 | /* |
2101 | * No more data to read... | |
2102 | */ | |
ef416fc2 | 2103 | |
0fa6c7fa | 2104 | return (0); |
ef416fc2 | 2105 | } |
ef416fc2 | 2106 | else |
2107 | { | |
0fa6c7fa MS |
2108 | DEBUG_printf(("1httpRead2: Reading up to %d bytes into buffer.", |
2109 | (int)length)); | |
ef416fc2 | 2110 | |
db8b865d MS |
2111 | if (length > (size_t)http->data_remaining) |
2112 | length = (size_t)http->data_remaining; | |
ef416fc2 | 2113 | |
0fa6c7fa | 2114 | if ((bytes = http_read_buffered(http, buffer, length)) > 0) |
cb7f98ee | 2115 | { |
0fa6c7fa | 2116 | http->data_remaining -= bytes; |
cb7f98ee MS |
2117 | |
2118 | if (http->data_remaining <= 0 && | |
2119 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2120 | { | |
2121 | /* | |
2122 | * Read the trailing blank line now... | |
2123 | */ | |
2124 | ||
2125 | char len[32]; /* Length string */ | |
2126 | ||
2127 | httpGets(len, sizeof(len), http); | |
2128 | } | |
2129 | } | |
ef416fc2 | 2130 | } |
2131 | ||
0fa6c7fa MS |
2132 | if ( |
2133 | #ifdef HAVE_LIBZ | |
d423d83d MS |
2134 | (http->coding == _HTTP_CODING_IDENTITY || |
2135 | (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in == 0)) && | |
0fa6c7fa MS |
2136 | #endif /* HAVE_LIBZ */ |
2137 | ((http->data_remaining <= 0 && | |
2138 | http->data_encoding == HTTP_ENCODING_LENGTH) || | |
2139 | (http->data_encoding == HTTP_ENCODING_CHUNKED && bytes == 0))) | |
ef416fc2 | 2140 | { |
a469f8a5 | 2141 | #ifdef HAVE_LIBZ |
d423d83d | 2142 | if (http->coding >= _HTTP_CODING_GUNZIP) |
0fa6c7fa | 2143 | http_content_coding_finish(http); |
a469f8a5 MS |
2144 | #endif /* HAVE_LIBZ */ |
2145 | ||
0fa6c7fa MS |
2146 | if (http->state == HTTP_STATE_POST_RECV) |
2147 | http->state ++; | |
6961465f MS |
2148 | else if (http->state == HTTP_STATE_GET_SEND || |
2149 | http->state == HTTP_STATE_POST_SEND) | |
2150 | http->state = HTTP_STATE_WAITING; | |
0fa6c7fa | 2151 | else |
cb7f98ee | 2152 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 2153 | |
0fa6c7fa | 2154 | DEBUG_printf(("1httpRead2: End of content, set state to %s.", |
48bd1142 | 2155 | httpStateString(http->state))); |
ef416fc2 | 2156 | } |
2157 | ||
ef416fc2 | 2158 | return (bytes); |
2159 | } | |
2160 | ||
2161 | ||
ef416fc2 | 2162 | /* |
a469f8a5 MS |
2163 | * 'httpReadRequest()' - Read a HTTP request from a connection. |
2164 | * | |
8072030b | 2165 | * @since CUPS 1.7/macOS 10.9@ |
ef416fc2 | 2166 | */ |
2167 | ||
a469f8a5 MS |
2168 | http_state_t /* O - New state of connection */ |
2169 | httpReadRequest(http_t *http, /* I - HTTP connection */ | |
2170 | char *uri, /* I - URI buffer */ | |
2171 | size_t urilen) /* I - Size of URI buffer */ | |
dcb445bc | 2172 | { |
a469f8a5 MS |
2173 | char line[4096], /* HTTP request line */ |
2174 | *req_method, /* HTTP request method */ | |
2175 | *req_uri, /* HTTP request URI */ | |
2176 | *req_version; /* HTTP request version number string */ | |
dcb445bc MS |
2177 | |
2178 | ||
a469f8a5 MS |
2179 | /* |
2180 | * Range check input... | |
2181 | */ | |
ef416fc2 | 2182 | |
807315e6 | 2183 | DEBUG_printf(("httpReadRequest(http=%p, uri=%p, urilen=" CUPS_LLFMT ")", (void *)http, (void *)uri, CUPS_LLCAST urilen)); |
ef416fc2 | 2184 | |
a469f8a5 MS |
2185 | if (uri) |
2186 | *uri = '\0'; | |
ef416fc2 | 2187 | |
a469f8a5 | 2188 | if (!http || !uri || urilen < 1) |
dcb445bc | 2189 | { |
a469f8a5 MS |
2190 | DEBUG_puts("1httpReadRequest: Bad arguments, returning HTTP_STATE_ERROR."); |
2191 | return (HTTP_STATE_ERROR); | |
dcb445bc | 2192 | } |
a469f8a5 | 2193 | else if (http->state != HTTP_STATE_WAITING) |
1ff0402e | 2194 | { |
a469f8a5 | 2195 | DEBUG_printf(("1httpReadRequest: Bad state %s, returning HTTP_STATE_ERROR.", |
48bd1142 | 2196 | httpStateString(http->state))); |
a469f8a5 | 2197 | return (HTTP_STATE_ERROR); |
1ff0402e | 2198 | } |
ef416fc2 | 2199 | |
2200 | /* | |
a469f8a5 | 2201 | * Reset state... |
ef416fc2 | 2202 | */ |
2203 | ||
a469f8a5 | 2204 | httpClearFields(http); |
ef416fc2 | 2205 | |
a469f8a5 MS |
2206 | http->activity = time(NULL); |
2207 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
2208 | http->data_remaining = 0; | |
2209 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2210 | http->status = HTTP_STATUS_OK; | |
2211 | http->version = HTTP_VERSION_1_1; | |
bd7854cb | 2212 | |
a29fd7dd | 2213 | /* |
a469f8a5 | 2214 | * Read a line from the socket... |
a29fd7dd MS |
2215 | */ |
2216 | ||
a469f8a5 MS |
2217 | if (!httpGets(line, sizeof(line), http)) |
2218 | { | |
2219 | DEBUG_puts("1httpReadRequest: Unable to read, returning HTTP_STATE_ERROR"); | |
2220 | return (HTTP_STATE_ERROR); | |
2221 | } | |
2222 | ||
2223 | if (!line[0]) | |
2224 | { | |
2225 | DEBUG_puts("1httpReadRequest: Blank line, returning HTTP_STATE_WAITING"); | |
2226 | return (HTTP_STATE_WAITING); | |
2227 | } | |
2228 | ||
2229 | DEBUG_printf(("1httpReadRequest: %s", line)); | |
2230 | ||
2231 | /* | |
2232 | * Parse it... | |
2233 | */ | |
2234 | ||
2235 | req_method = line; | |
2236 | req_uri = line; | |
2237 | ||
2238 | while (*req_uri && !isspace(*req_uri & 255)) | |
2239 | req_uri ++; | |
2240 | ||
2241 | if (!*req_uri) | |
2242 | { | |
2243 | DEBUG_puts("1httpReadRequest: No request URI."); | |
d21dc0ed | 2244 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request URI."), 1); |
a469f8a5 MS |
2245 | return (HTTP_STATE_ERROR); |
2246 | } | |
2247 | ||
2248 | *req_uri++ = '\0'; | |
2249 | ||
2250 | while (*req_uri && isspace(*req_uri & 255)) | |
2251 | req_uri ++; | |
2252 | ||
2253 | req_version = req_uri; | |
2254 | ||
2255 | while (*req_version && !isspace(*req_version & 255)) | |
2256 | req_version ++; | |
2257 | ||
2258 | if (!*req_version) | |
2259 | { | |
2260 | DEBUG_puts("1httpReadRequest: No request protocol version."); | |
d21dc0ed | 2261 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request protocol version."), 1); |
a469f8a5 MS |
2262 | return (HTTP_STATE_ERROR); |
2263 | } | |
2264 | ||
2265 | *req_version++ = '\0'; | |
2266 | ||
2267 | while (*req_version && isspace(*req_version & 255)) | |
2268 | req_version ++; | |
2269 | ||
2270 | /* | |
2271 | * Validate... | |
2272 | */ | |
2273 | ||
2274 | if (!strcmp(req_method, "OPTIONS")) | |
2275 | http->state = HTTP_STATE_OPTIONS; | |
2276 | else if (!strcmp(req_method, "GET")) | |
2277 | http->state = HTTP_STATE_GET; | |
2278 | else if (!strcmp(req_method, "HEAD")) | |
2279 | http->state = HTTP_STATE_HEAD; | |
2280 | else if (!strcmp(req_method, "POST")) | |
2281 | http->state = HTTP_STATE_POST; | |
2282 | else if (!strcmp(req_method, "PUT")) | |
2283 | http->state = HTTP_STATE_PUT; | |
2284 | else if (!strcmp(req_method, "DELETE")) | |
2285 | http->state = HTTP_STATE_DELETE; | |
2286 | else if (!strcmp(req_method, "TRACE")) | |
2287 | http->state = HTTP_STATE_TRACE; | |
2288 | else if (!strcmp(req_method, "CONNECT")) | |
2289 | http->state = HTTP_STATE_CONNECT; | |
2290 | else | |
2291 | { | |
2292 | DEBUG_printf(("1httpReadRequest: Unknown method \"%s\".", req_method)); | |
d21dc0ed | 2293 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request method."), 1); |
a469f8a5 MS |
2294 | return (HTTP_STATE_UNKNOWN_METHOD); |
2295 | } | |
2296 | ||
2297 | DEBUG_printf(("1httpReadRequest: Set state to %s.", | |
48bd1142 | 2298 | httpStateString(http->state))); |
a469f8a5 MS |
2299 | |
2300 | if (!strcmp(req_version, "HTTP/1.0")) | |
2301 | { | |
2302 | http->version = HTTP_VERSION_1_0; | |
2303 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2304 | } | |
2305 | else if (!strcmp(req_version, "HTTP/1.1")) | |
2306 | { | |
2307 | http->version = HTTP_VERSION_1_1; | |
2308 | http->keep_alive = HTTP_KEEPALIVE_ON; | |
2309 | } | |
2310 | else | |
2311 | { | |
2312 | DEBUG_printf(("1httpReadRequest: Unknown version \"%s\".", req_version)); | |
d21dc0ed | 2313 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request version."), 1); |
a469f8a5 MS |
2314 | return (HTTP_STATE_UNKNOWN_VERSION); |
2315 | } | |
2316 | ||
2317 | DEBUG_printf(("1httpReadRequest: URI is \"%s\".", req_uri)); | |
2318 | strlcpy(uri, req_uri, urilen); | |
2319 | ||
2320 | return (http->state); | |
2321 | } | |
2322 | ||
2323 | ||
2324 | /* | |
2325 | * 'httpReconnect()' - Reconnect to a HTTP server. | |
2326 | * | |
2327 | * This function is deprecated. Please use the @link httpReconnect2@ function | |
2328 | * instead. | |
2329 | * | |
53af7f21 | 2330 | * @deprecated@ @exclude all@ |
a469f8a5 MS |
2331 | */ |
2332 | ||
2333 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2334 | httpReconnect(http_t *http) /* I - HTTP connection */ |
a469f8a5 | 2335 | { |
807315e6 | 2336 | DEBUG_printf(("httpReconnect(http=%p)", (void *)http)); |
a469f8a5 MS |
2337 | |
2338 | return (httpReconnect2(http, 30000, NULL)); | |
2339 | } | |
2340 | ||
2341 | ||
2342 | /* | |
2343 | * 'httpReconnect2()' - Reconnect to a HTTP server with timeout and optional | |
2344 | * cancel. | |
2345 | */ | |
2346 | ||
2347 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2348 | httpReconnect2(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
2349 | int msec, /* I - Timeout in milliseconds */ |
2350 | int *cancel) /* I - Pointer to "cancel" variable */ | |
2351 | { | |
2352 | http_addrlist_t *addr; /* Connected address */ | |
2353 | #ifdef DEBUG | |
2354 | http_addrlist_t *current; /* Current address */ | |
2355 | char temp[256]; /* Temporary address string */ | |
2356 | #endif /* DEBUG */ | |
2357 | ||
2358 | ||
807315e6 | 2359 | DEBUG_printf(("httpReconnect2(http=%p, msec=%d, cancel=%p)", (void *)http, msec, (void *)cancel)); |
a469f8a5 MS |
2360 | |
2361 | if (!http) | |
2362 | { | |
cb7f98ee | 2363 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
a469f8a5 MS |
2364 | return (-1); |
2365 | } | |
2366 | ||
2367 | #ifdef HAVE_SSL | |
2368 | if (http->tls) | |
2369 | { | |
2370 | DEBUG_puts("2httpReconnect2: Shutting down SSL/TLS..."); | |
25731360 | 2371 | _httpTLSStop(http); |
a469f8a5 MS |
2372 | } |
2373 | #endif /* HAVE_SSL */ | |
2374 | ||
2375 | /* | |
2376 | * Close any previously open socket... | |
2377 | */ | |
2378 | ||
2379 | if (http->fd >= 0) | |
2380 | { | |
2381 | DEBUG_printf(("2httpReconnect2: Closing socket %d...", http->fd)); | |
2382 | ||
87e98392 | 2383 | httpAddrClose(NULL, http->fd); |
a469f8a5 MS |
2384 | |
2385 | http->fd = -1; | |
2386 | } | |
2387 | ||
2388 | /* | |
2389 | * Reset all state (except fields, which may be reused)... | |
2390 | */ | |
2391 | ||
2392 | http->state = HTTP_STATE_WAITING; | |
a469f8a5 MS |
2393 | http->version = HTTP_VERSION_1_1; |
2394 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
a29fd7dd | 2395 | memset(&http->_hostaddr, 0, sizeof(http->_hostaddr)); |
a469f8a5 | 2396 | http->data_encoding = HTTP_ENCODING_FIELDS; |
a29fd7dd MS |
2397 | http->_data_remaining = 0; |
2398 | http->used = 0; | |
a29fd7dd MS |
2399 | http->data_remaining = 0; |
2400 | http->hostaddr = NULL; | |
2401 | http->wused = 0; | |
2402 | ||
ef416fc2 | 2403 | /* |
2404 | * Connect to the server... | |
2405 | */ | |
2406 | ||
1ff0402e MS |
2407 | #ifdef DEBUG |
2408 | for (current = http->addrlist; current; current = current->next) | |
12f89d24 | 2409 | DEBUG_printf(("2httpReconnect2: Address %s:%d", |
1ff0402e | 2410 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
a469f8a5 | 2411 | httpAddrPort(&(current->addr)))); |
1ff0402e MS |
2412 | #endif /* DEBUG */ |
2413 | ||
d5cc05c9 | 2414 | if ((addr = httpAddrConnect2(http->addrlist, &(http->fd), msec, cancel)) == NULL) |
ef416fc2 | 2415 | { |
2416 | /* | |
2417 | * Unable to connect... | |
2418 | */ | |
2419 | ||
2420 | #ifdef WIN32 | |
2421 | http->error = WSAGetLastError(); | |
2422 | #else | |
2423 | http->error = errno; | |
2424 | #endif /* WIN32 */ | |
cb7f98ee | 2425 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 2426 | |
12f89d24 | 2427 | DEBUG_printf(("1httpReconnect2: httpAddrConnect failed: %s", |
1ff0402e MS |
2428 | strerror(http->error))); |
2429 | ||
ef416fc2 | 2430 | return (-1); |
2431 | } | |
2432 | ||
12f89d24 | 2433 | DEBUG_printf(("2httpReconnect2: New socket=%d", http->fd)); |
1ff0402e | 2434 | |
85dda01c MS |
2435 | if (http->timeout_value > 0) |
2436 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2437 | |
ef416fc2 | 2438 | http->hostaddr = &(addr->addr); |
2439 | http->error = 0; | |
ef416fc2 | 2440 | |
2441 | #ifdef HAVE_SSL | |
cb7f98ee | 2442 | if (http->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 2443 | { |
2444 | /* | |
2445 | * Always do encryption via SSL. | |
2446 | */ | |
2447 | ||
25731360 | 2448 | if (_httpTLSStart(http) != 0) |
ef416fc2 | 2449 | { |
87e98392 | 2450 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2451 | |
2452 | return (-1); | |
2453 | } | |
2454 | } | |
cb7f98ee | 2455 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls_upgrade) |
2c85b752 | 2456 | return (http_tls_upgrade(http)); |
ef416fc2 | 2457 | #endif /* HAVE_SSL */ |
2458 | ||
12f89d24 | 2459 | DEBUG_printf(("1httpReconnect2: Connected to %s:%d...", |
1ff0402e | 2460 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
a469f8a5 | 2461 | httpAddrPort(http->hostaddr))); |
1ff0402e | 2462 | |
ef416fc2 | 2463 | return (0); |
2464 | } | |
2465 | ||
2466 | ||
355e94dc MS |
2467 | /* |
2468 | * 'httpSetAuthString()' - Set the current authorization string. | |
2469 | * | |
2470 | * This function just stores a copy of the current authorization string in | |
98d88c8d MS |
2471 | * the HTTP connection object. You must still call @link httpSetField@ to set |
2472 | * @code HTTP_FIELD_AUTHORIZATION@ prior to issuing a HTTP request using | |
2473 | * @link httpGet@, @link httpHead@, @link httpOptions@, @link httpPost@, or | |
2474 | * @link httpPut@. | |
355e94dc | 2475 | * |
8072030b | 2476 | * @since CUPS 1.3/macOS 10.5@ |
355e94dc MS |
2477 | */ |
2478 | ||
2479 | void | |
e6b1a6a9 | 2480 | httpSetAuthString(http_t *http, /* I - HTTP connection */ |
355e94dc MS |
2481 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2482 | const char *data) /* I - Auth data (NULL for none) */ | |
2483 | { | |
2484 | /* | |
2485 | * Range check input... | |
2486 | */ | |
2487 | ||
2488 | if (!http) | |
2489 | return; | |
2490 | ||
2491 | if (http->authstring && http->authstring != http->_authstring) | |
2492 | free(http->authstring); | |
2493 | ||
2494 | http->authstring = http->_authstring; | |
2495 | ||
2496 | if (scheme) | |
2497 | { | |
2498 | /* | |
2499 | * Set the current authorization string... | |
2500 | */ | |
2501 | ||
7e86f2f6 | 2502 | size_t len = strlen(scheme) + (data ? strlen(data) + 1 : 0) + 1; |
91c84a35 | 2503 | char *temp; |
355e94dc | 2504 | |
7e86f2f6 | 2505 | if (len > sizeof(http->_authstring)) |
91c84a35 MS |
2506 | { |
2507 | if ((temp = malloc(len)) == NULL) | |
2508 | len = sizeof(http->_authstring); | |
2509 | else | |
2510 | http->authstring = temp; | |
2511 | } | |
355e94dc MS |
2512 | |
2513 | if (data) | |
2514 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2515 | else | |
2516 | strlcpy(http->authstring, scheme, len); | |
2517 | } | |
2518 | else | |
2519 | { | |
2520 | /* | |
2521 | * Clear the current authorization string... | |
2522 | */ | |
2523 | ||
2524 | http->_authstring[0] = '\0'; | |
2525 | } | |
2526 | } | |
2527 | ||
2528 | ||
7cf5915e MS |
2529 | /* |
2530 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2531 | * connection. | |
2532 | * | |
8072030b | 2533 | * @since CUPS 1.5/macOS 10.7@ |
7cf5915e MS |
2534 | */ |
2535 | ||
2536 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2537 | httpSetCredentials(http_t *http, /* I - HTTP connection */ |
7cf5915e MS |
2538 | cups_array_t *credentials) /* I - Array of credentials */ |
2539 | { | |
2540 | if (!http || cupsArrayCount(credentials) < 1) | |
2541 | return (-1); | |
2542 | ||
7d5824d6 | 2543 | #ifdef HAVE_SSL |
7cf5915e MS |
2544 | _httpFreeCredentials(http->tls_credentials); |
2545 | ||
85dda01c | 2546 | http->tls_credentials = _httpCreateCredentials(credentials); |
7d5824d6 | 2547 | #endif /* HAVE_SSL */ |
7cf5915e MS |
2548 | |
2549 | return (http->tls_credentials ? 0 : -1); | |
2550 | } | |
2551 | ||
2552 | ||
ef416fc2 | 2553 | /* |
6d2f911b | 2554 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2555 | * |
8072030b | 2556 | * @since CUPS 1.1.19/macOS 10.3@ |
ef416fc2 | 2557 | */ |
2558 | ||
2559 | void | |
2560 | httpSetCookie(http_t *http, /* I - Connection */ | |
2561 | const char *cookie) /* I - Cookie string */ | |
2562 | { | |
2563 | if (!http) | |
2564 | return; | |
2565 | ||
2566 | if (http->cookie) | |
2567 | free(http->cookie); | |
2568 | ||
2569 | if (cookie) | |
2570 | http->cookie = strdup(cookie); | |
2571 | else | |
2572 | http->cookie = NULL; | |
2573 | } | |
2574 | ||
2575 | ||
c1420c87 MS |
2576 | /* |
2577 | * 'httpSetDefaultField()' - Set the default value of an HTTP header. | |
2578 | * | |
6961465f MS |
2579 | * Currently only @code HTTP_FIELD_ACCEPT_ENCODING@, @code HTTP_FIELD_SERVER@, |
2580 | * and @code HTTP_FIELD_USER_AGENT@ can be set. | |
c1420c87 | 2581 | * |
8072030b | 2582 | * @since CUPS 1.7/macOS 10.9@ |
c1420c87 MS |
2583 | */ |
2584 | ||
2585 | void | |
e6b1a6a9 | 2586 | httpSetDefaultField(http_t *http, /* I - HTTP connection */ |
c1420c87 MS |
2587 | http_field_t field, /* I - Field index */ |
2588 | const char *value)/* I - Value */ | |
2589 | { | |
807315e6 | 2590 | DEBUG_printf(("httpSetDefaultField(http=%p, field=%d(%s), value=\"%s\")", (void *)http, field, http_fields[field], value)); |
c1420c87 MS |
2591 | |
2592 | if (!http) | |
2593 | return; | |
2594 | ||
2595 | switch (field) | |
2596 | { | |
2597 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2598 | if (http->default_accept_encoding) | |
2599 | _cupsStrFree(http->default_accept_encoding); | |
2600 | ||
2601 | http->default_accept_encoding = value ? _cupsStrAlloc(value) : NULL; | |
2602 | break; | |
2603 | ||
2604 | case HTTP_FIELD_SERVER : | |
2605 | if (http->default_server) | |
2606 | _cupsStrFree(http->default_server); | |
2607 | ||
2608 | http->default_server = value ? _cupsStrAlloc(value) : NULL; | |
2609 | break; | |
2610 | ||
2611 | case HTTP_FIELD_USER_AGENT : | |
2612 | if (http->default_user_agent) | |
2613 | _cupsStrFree(http->default_user_agent); | |
2614 | ||
2615 | http->default_user_agent = value ? _cupsStrAlloc(value) : NULL; | |
2616 | break; | |
2617 | ||
2618 | default : | |
2619 | DEBUG_puts("1httpSetDefaultField: Ignored."); | |
2620 | break; | |
2621 | } | |
2622 | } | |
2623 | ||
2624 | ||
b423cd4c | 2625 | /* |
2626 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2627 | * | |
a469f8a5 MS |
2628 | * Currently only @code HTTP_STATUS_CONTINUE@ is supported for the "expect" |
2629 | * argument. | |
b423cd4c | 2630 | * |
8072030b | 2631 | * @since CUPS 1.2/macOS 10.5@ |
b423cd4c | 2632 | */ |
2633 | ||
2634 | void | |
e6b1a6a9 | 2635 | httpSetExpect(http_t *http, /* I - HTTP connection */ |
a469f8a5 | 2636 | http_status_t expect) /* I - HTTP status to expect |
cb7f98ee | 2637 | (@code HTTP_STATUS_CONTINUE@) */ |
b423cd4c | 2638 | { |
807315e6 | 2639 | DEBUG_printf(("httpSetExpect(http=%p, expect=%d)", (void *)http, expect)); |
cb7f98ee | 2640 | |
b423cd4c | 2641 | if (http) |
2642 | http->expect = expect; | |
2643 | } | |
2644 | ||
2645 | ||
ef416fc2 | 2646 | /* |
2647 | * 'httpSetField()' - Set the value of an HTTP header. | |
2648 | */ | |
2649 | ||
2650 | void | |
e6b1a6a9 | 2651 | httpSetField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2652 | http_field_t field, /* I - Field index */ |
2653 | const char *value) /* I - Value */ | |
2654 | { | |
807315e6 | 2655 | DEBUG_printf(("httpSetField(http=%p, field=%d(%s), value=\"%s\")", (void *)http, field, http_fields[field], value)); |
a469f8a5 | 2656 | |
ef416fc2 | 2657 | if (http == NULL || |
2658 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
a469f8a5 | 2659 | field >= HTTP_FIELD_MAX || |
ef416fc2 | 2660 | value == NULL) |
2661 | return; | |
2662 | ||
1f717210 | 2663 | http_add_field(http, field, value, 0); |
ef416fc2 | 2664 | } |
2665 | ||
2666 | ||
e6b1a6a9 MS |
2667 | /* |
2668 | * 'httpSetKeepAlive()' - Set the current Keep-Alive state of a connection. | |
2669 | * | |
e1f19878 | 2670 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
2671 | */ |
2672 | ||
2673 | void | |
2674 | httpSetKeepAlive( | |
2675 | http_t *http, /* I - HTTP connection */ | |
2676 | http_keepalive_t keep_alive) /* I - New Keep-Alive value */ | |
2677 | { | |
2678 | if (http) | |
2679 | http->keep_alive = keep_alive; | |
2680 | } | |
2681 | ||
2682 | ||
ef416fc2 | 2683 | /* |
2684 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2685 | * | |
8072030b | 2686 | * @since CUPS 1.2/macOS 10.5@ |
ef416fc2 | 2687 | */ |
2688 | ||
2689 | void | |
e6b1a6a9 | 2690 | httpSetLength(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2691 | size_t length) /* I - Length (0 for chunked) */ |
2692 | { | |
807315e6 | 2693 | DEBUG_printf(("httpSetLength(http=%p, length=" CUPS_LLFMT ")", (void *)http, CUPS_LLCAST length)); |
a469f8a5 | 2694 | |
ef416fc2 | 2695 | if (!http) |
2696 | return; | |
2697 | ||
2698 | if (!length) | |
2699 | { | |
5a9febac MS |
2700 | strlcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked", |
2701 | HTTP_MAX_VALUE); | |
ef416fc2 | 2702 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; |
2703 | } | |
2704 | else | |
2705 | { | |
2706 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2707 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2708 | CUPS_LLFMT, CUPS_LLCAST length); | |
2709 | } | |
2710 | } | |
2711 | ||
2712 | ||
10d09e33 | 2713 | /* |
f228370c | 2714 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2715 | * |
2716 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2717 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2718 | * | |
8072030b | 2719 | * @since CUPS 1.5/macOS 10.7@ |
10d09e33 MS |
2720 | */ |
2721 | ||
2722 | void | |
f228370c | 2723 | httpSetTimeout( |
e6b1a6a9 | 2724 | http_t *http, /* I - HTTP connection */ |
f228370c | 2725 | double timeout, /* I - Number of seconds for timeout, |
10d09e33 | 2726 | must be greater than 0 */ |
98d88c8d | 2727 | http_timeout_cb_t cb, /* I - Callback function or @code NULL@ */ |
f228370c | 2728 | void *user_data) /* I - User data pointer */ |
10d09e33 MS |
2729 | { |
2730 | if (!http || timeout <= 0.0) | |
2731 | return; | |
2732 | ||
85dda01c MS |
2733 | http->timeout_cb = cb; |
2734 | http->timeout_data = user_data; | |
2735 | http->timeout_value = timeout; | |
10d09e33 MS |
2736 | |
2737 | if (http->fd >= 0) | |
85dda01c | 2738 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2739 | |
85dda01c | 2740 | http_set_wait(http); |
10d09e33 MS |
2741 | } |
2742 | ||
2743 | ||
5ec1fd3d MS |
2744 | /* |
2745 | * 'httpShutdown()' - Shutdown one side of an HTTP connection. | |
2746 | * | |
e1f19878 | 2747 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
2748 | */ |
2749 | ||
2750 | void | |
2751 | httpShutdown(http_t *http) /* I - HTTP connection */ | |
2752 | { | |
2753 | if (!http || http->fd < 0) | |
2754 | return; | |
2755 | ||
7d5824d6 | 2756 | #ifdef HAVE_SSL |
5ec1fd3d | 2757 | if (http->tls) |
25731360 | 2758 | _httpTLSStop(http); |
7d5824d6 | 2759 | #endif /* HAVE_SSL */ |
5ec1fd3d | 2760 | |
33c9220c MS |
2761 | #ifdef WIN32 |
2762 | shutdown(http->fd, SD_RECEIVE); /* Microsoft-ism... */ | |
2763 | #else | |
5ec1fd3d | 2764 | shutdown(http->fd, SHUT_RD); |
33c9220c | 2765 | #endif /* WIN32 */ |
5ec1fd3d MS |
2766 | } |
2767 | ||
2768 | ||
ef416fc2 | 2769 | /* |
2770 | * 'httpTrace()' - Send an TRACE request to the server. | |
98d88c8d MS |
2771 | * |
2772 | * @exclude all@ | |
ef416fc2 | 2773 | */ |
2774 | ||
2775 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2776 | httpTrace(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2777 | const char *uri) /* I - URI for trace */ |
2778 | { | |
cb7f98ee | 2779 | return (http_send(http, HTTP_STATE_TRACE, uri)); |
ef416fc2 | 2780 | } |
2781 | ||
2782 | ||
2783 | /* | |
e60ec91f MS |
2784 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2785 | * | |
2786 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2787 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2788 | */ |
2789 | ||
e60ec91f | 2790 | int /* O - 1 to continue, 0 to stop */ |
e6b1a6a9 | 2791 | _httpUpdate(http_t *http, /* I - HTTP connection */ |
e60ec91f | 2792 | http_status_t *status) /* O - Current HTTP status */ |
ef416fc2 | 2793 | { |
2794 | char line[32768], /* Line from connection... */ | |
2795 | *value; /* Pointer to value on line */ | |
2796 | http_field_t field; /* Field index */ | |
e60ec91f | 2797 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2798 | |
2799 | ||
807315e6 | 2800 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", (void *)http, (void *)status, httpStateString(http->state))); |
ef416fc2 | 2801 | |
2802 | /* | |
e60ec91f | 2803 | * Grab a single line from the connection... |
ef416fc2 | 2804 | */ |
2805 | ||
e60ec91f | 2806 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2807 | { |
cb7f98ee | 2808 | *status = HTTP_STATUS_ERROR; |
e60ec91f | 2809 | return (0); |
ef416fc2 | 2810 | } |
2811 | ||
e60ec91f | 2812 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2813 | |
e60ec91f | 2814 | if (line[0] == '\0') |
ef416fc2 | 2815 | { |
e60ec91f MS |
2816 | /* |
2817 | * Blank line means the start of the data section (if any). Return | |
2818 | * the result code, too... | |
2819 | * | |
a469f8a5 MS |
2820 | * If we get status 100 (HTTP_STATUS_CONTINUE), then we *don't* change |
2821 | * states. Instead, we just return HTTP_STATUS_CONTINUE to the caller and | |
2822 | * keep on tryin'... | |
e60ec91f | 2823 | */ |
ef416fc2 | 2824 | |
a469f8a5 | 2825 | if (http->status == HTTP_STATUS_CONTINUE) |
ef416fc2 | 2826 | { |
e60ec91f MS |
2827 | *status = http->status; |
2828 | return (0); | |
2829 | } | |
ef416fc2 | 2830 | |
cb7f98ee | 2831 | if (http->status < HTTP_STATUS_BAD_REQUEST) |
e60ec91f | 2832 | http->digest_tries = 0; |
ef416fc2 | 2833 | |
2834 | #ifdef HAVE_SSL | |
cb7f98ee | 2835 | if (http->status == HTTP_STATUS_SWITCHING_PROTOCOLS && !http->tls) |
e60ec91f | 2836 | { |
25731360 | 2837 | if (_httpTLSStart(http) != 0) |
ef416fc2 | 2838 | { |
87e98392 | 2839 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2840 | |
cb7f98ee | 2841 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f | 2842 | return (0); |
ef416fc2 | 2843 | } |
e60ec91f | 2844 | |
a469f8a5 | 2845 | *status = HTTP_STATUS_CONTINUE; |
e60ec91f MS |
2846 | return (0); |
2847 | } | |
ef416fc2 | 2848 | #endif /* HAVE_SSL */ |
2849 | ||
a469f8a5 MS |
2850 | if (http_set_length(http) < 0) |
2851 | { | |
2852 | DEBUG_puts("1_httpUpdate: Bad Content-Length."); | |
2853 | http->error = EINVAL; | |
cb7f98ee | 2854 | http->status = *status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
2855 | return (0); |
2856 | } | |
ef416fc2 | 2857 | |
e60ec91f MS |
2858 | switch (http->state) |
2859 | { | |
c41769ff MS |
2860 | case HTTP_STATE_GET : |
2861 | case HTTP_STATE_POST : | |
a469f8a5 | 2862 | case HTTP_STATE_POST_RECV : |
c41769ff | 2863 | case HTTP_STATE_PUT : |
e60ec91f | 2864 | http->state ++; |
a469f8a5 MS |
2865 | |
2866 | DEBUG_printf(("1_httpUpdate: Set state to %s.", | |
48bd1142 | 2867 | httpStateString(http->state))); |
a469f8a5 | 2868 | |
c41769ff MS |
2869 | case HTTP_STATE_POST_SEND : |
2870 | case HTTP_STATE_HEAD : | |
e60ec91f | 2871 | break; |
ef416fc2 | 2872 | |
e60ec91f | 2873 | default : |
a469f8a5 MS |
2874 | http->state = HTTP_STATE_WAITING; |
2875 | ||
cb7f98ee | 2876 | DEBUG_puts("1_httpUpdate: Reset state to HTTP_STATE_WAITING."); |
e60ec91f | 2877 | break; |
ef416fc2 | 2878 | } |
e60ec91f | 2879 | |
a469f8a5 MS |
2880 | #ifdef HAVE_LIBZ |
2881 | DEBUG_puts("1_httpUpdate: Calling http_content_coding_start."); | |
2882 | http_content_coding_start(http, | |
2883 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
2884 | #endif /* HAVE_LIBZ */ | |
2885 | ||
e60ec91f MS |
2886 | *status = http->status; |
2887 | return (0); | |
2888 | } | |
be939dc2 | 2889 | else if (!strncmp(line, "HTTP/", 5) && http->mode == _HTTP_MODE_CLIENT) |
e60ec91f MS |
2890 | { |
2891 | /* | |
2892 | * Got the beginning of a response... | |
2893 | */ | |
2894 | ||
2895 | int intstatus; /* Status value as an integer */ | |
2896 | ||
2897 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
2898 | { | |
cb7f98ee | 2899 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f MS |
2900 | return (0); |
2901 | } | |
2902 | ||
a469f8a5 MS |
2903 | httpClearFields(http); |
2904 | ||
e60ec91f MS |
2905 | http->version = (http_version_t)(major * 100 + minor); |
2906 | *status = http->status = (http_status_t)intstatus; | |
2907 | } | |
2908 | else if ((value = strchr(line, ':')) != NULL) | |
2909 | { | |
2910 | /* | |
2911 | * Got a value... | |
2912 | */ | |
2913 | ||
2914 | *value++ = '\0'; | |
2915 | while (_cups_isspace(*value)) | |
2916 | value ++; | |
2917 | ||
a469f8a5 MS |
2918 | DEBUG_printf(("1_httpUpdate: Header %s: %s", line, value)); |
2919 | ||
e60ec91f MS |
2920 | /* |
2921 | * Be tolerants of servers that send unknown attribute fields... | |
2922 | */ | |
2923 | ||
88f9aafc | 2924 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 2925 | { |
2926 | /* | |
e60ec91f | 2927 | * "Expect: 100-continue" or similar... |
ef416fc2 | 2928 | */ |
2929 | ||
e60ec91f | 2930 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 2931 | } |
88f9aafc | 2932 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 2933 | { |
2934 | /* | |
e60ec91f | 2935 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 2936 | */ |
2937 | ||
e60ec91f MS |
2938 | httpSetCookie(http, value); |
2939 | } | |
48bd1142 | 2940 | else if ((field = httpFieldValue(line)) != HTTP_FIELD_UNKNOWN) |
1f717210 | 2941 | http_add_field(http, field, value, 1); |
e60ec91f MS |
2942 | #ifdef DEBUG |
2943 | else | |
2944 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
2945 | #endif /* DEBUG */ | |
2946 | } | |
2947 | else | |
2948 | { | |
2949 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
a469f8a5 | 2950 | http->error = EINVAL; |
cb7f98ee | 2951 | http->status = *status = HTTP_STATUS_ERROR; |
e60ec91f MS |
2952 | return (0); |
2953 | } | |
ef416fc2 | 2954 | |
e60ec91f MS |
2955 | return (1); |
2956 | } | |
ef416fc2 | 2957 | |
ef416fc2 | 2958 | |
e60ec91f MS |
2959 | /* |
2960 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
2961 | */ | |
ef416fc2 | 2962 | |
e60ec91f | 2963 | http_status_t /* O - HTTP status */ |
e6b1a6a9 | 2964 | httpUpdate(http_t *http) /* I - HTTP connection */ |
e60ec91f MS |
2965 | { |
2966 | http_status_t status; /* Request status */ | |
2967 | ||
2968 | ||
807315e6 | 2969 | DEBUG_printf(("httpUpdate(http=%p), state=%s", (void *)http, httpStateString(http->state))); |
e60ec91f MS |
2970 | |
2971 | /* | |
2972 | * Flush pending data, if any... | |
2973 | */ | |
2974 | ||
2975 | if (http->wused) | |
2976 | { | |
2977 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
2978 | ||
2979 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 2980 | return (HTTP_STATUS_ERROR); |
ef416fc2 | 2981 | } |
2982 | ||
e60ec91f MS |
2983 | /* |
2984 | * If we haven't issued any commands, then there is nothing to "update"... | |
2985 | */ | |
2986 | ||
a469f8a5 | 2987 | if (http->state == HTTP_STATE_WAITING) |
cb7f98ee | 2988 | return (HTTP_STATUS_CONTINUE); |
e60ec91f MS |
2989 | |
2990 | /* | |
2991 | * Grab all of the lines we can from the connection... | |
2992 | */ | |
2993 | ||
2994 | while (_httpUpdate(http, &status)); | |
2995 | ||
ef416fc2 | 2996 | /* |
2997 | * See if there was an error... | |
2998 | */ | |
2999 | ||
cb7f98ee | 3000 | if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE) |
e07d4801 MS |
3001 | { |
3002 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 3003 | return (http->status); |
e07d4801 | 3004 | } |
ef416fc2 | 3005 | |
3006 | if (http->error) | |
3007 | { | |
e07d4801 | 3008 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 3009 | strerror(http->error))); |
cb7f98ee MS |
3010 | http->status = HTTP_STATUS_ERROR; |
3011 | return (HTTP_STATUS_ERROR); | |
ef416fc2 | 3012 | } |
3013 | ||
3014 | /* | |
e60ec91f | 3015 | * Return the current status... |
ef416fc2 | 3016 | */ |
3017 | ||
e60ec91f | 3018 | return (status); |
ef416fc2 | 3019 | } |
3020 | ||
3021 | ||
38e73f87 MS |
3022 | /* |
3023 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
3024 | */ | |
3025 | ||
3026 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3027 | _httpWait(http_t *http, /* I - HTTP connection */ |
38e73f87 MS |
3028 | int msec, /* I - Milliseconds to wait */ |
3029 | int usessl) /* I - Use SSL context? */ | |
3030 | { | |
3031 | #ifdef HAVE_POLL | |
3032 | struct pollfd pfd; /* Polled file descriptor */ | |
3033 | #else | |
3034 | fd_set input_set; /* select() input set */ | |
3035 | struct timeval timeout; /* Timeout */ | |
3036 | #endif /* HAVE_POLL */ | |
3037 | int nfds; /* Result from select()/poll() */ | |
3038 | ||
3039 | ||
807315e6 | 3040 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", (void *)http, msec, usessl)); |
38e73f87 MS |
3041 | |
3042 | if (http->fd < 0) | |
f8b3a85b MS |
3043 | { |
3044 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 3045 | return (0); |
f8b3a85b | 3046 | } |
38e73f87 MS |
3047 | |
3048 | /* | |
3049 | * Check the SSL/TLS buffers for data first... | |
3050 | */ | |
3051 | ||
3052 | #ifdef HAVE_SSL | |
25731360 | 3053 | if (http->tls && _httpTLSPending(http)) |
38e73f87 | 3054 | { |
2c85b752 MS |
3055 | DEBUG_puts("5_httpWait: Return 1 since there is pending TLS data."); |
3056 | return (1); | |
38e73f87 MS |
3057 | } |
3058 | #endif /* HAVE_SSL */ | |
3059 | ||
3060 | /* | |
3061 | * Then try doing a select() or poll() to poll the socket... | |
3062 | */ | |
3063 | ||
3064 | #ifdef HAVE_POLL | |
3065 | pfd.fd = http->fd; | |
3066 | pfd.events = POLLIN; | |
3067 | ||
5a9febac MS |
3068 | do |
3069 | { | |
3070 | nfds = poll(&pfd, 1, msec); | |
3071 | } | |
3072 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
3073 | |
3074 | #else | |
3075 | do | |
3076 | { | |
3077 | FD_ZERO(&input_set); | |
3078 | FD_SET(http->fd, &input_set); | |
3079 | ||
e07d4801 | 3080 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
3081 | |
3082 | if (msec >= 0) | |
3083 | { | |
3084 | timeout.tv_sec = msec / 1000; | |
3085 | timeout.tv_usec = (msec % 1000) * 1000; | |
3086 | ||
3087 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
3088 | } | |
3089 | else | |
3090 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
3091 | ||
e07d4801 | 3092 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
3093 | } |
3094 | # ifdef WIN32 | |
cc754834 MS |
3095 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
3096 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 3097 | # else |
e07d4801 | 3098 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
3099 | # endif /* WIN32 */ |
3100 | #endif /* HAVE_POLL */ | |
3101 | ||
f8b3a85b MS |
3102 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
3103 | errno)); | |
38e73f87 MS |
3104 | |
3105 | return (nfds > 0); | |
3106 | } | |
3107 | ||
3108 | ||
ef416fc2 | 3109 | /* |
3110 | * 'httpWait()' - Wait for data available on a connection. | |
3111 | * | |
8072030b | 3112 | * @since CUPS 1.1.19/macOS 10.3@ |
ef416fc2 | 3113 | */ |
3114 | ||
3115 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3116 | httpWait(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3117 | int msec) /* I - Milliseconds to wait */ |
3118 | { | |
3119 | /* | |
3120 | * First see if there is data in the buffer... | |
3121 | */ | |
3122 | ||
807315e6 | 3123 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", (void *)http, msec)); |
22c9029b | 3124 | |
ef416fc2 | 3125 | if (http == NULL) |
3126 | return (0); | |
3127 | ||
3128 | if (http->used) | |
22c9029b MS |
3129 | { |
3130 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 3131 | return (1); |
22c9029b | 3132 | } |
ef416fc2 | 3133 | |
0fa6c7fa MS |
3134 | #ifdef HAVE_LIBZ |
3135 | if (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in > 0) | |
3136 | { | |
3137 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
3138 | return (1); | |
3139 | } | |
3140 | #endif /* HAVE_LIBZ */ | |
3141 | ||
8ca02f3c | 3142 | /* |
3143 | * Flush pending data, if any... | |
3144 | */ | |
3145 | ||
3146 | if (http->wused) | |
3147 | { | |
22c9029b MS |
3148 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3149 | ||
8ca02f3c | 3150 | if (httpFlushWrite(http) < 0) |
3151 | return (0); | |
3152 | } | |
3153 | ||
ef416fc2 | 3154 | /* |
3155 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3156 | */ | |
3157 | ||
38e73f87 | 3158 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3159 | } |
3160 | ||
3161 | ||
3162 | /* | |
3163 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3164 | * |
3165 | * This function is deprecated. Use the httpWrite2() function which can | |
3166 | * write more than 2GB of data. | |
3167 | * | |
53af7f21 | 3168 | * @deprecated@ @exclude all@ |
ef416fc2 | 3169 | */ |
ef55b745 | 3170 | |
ef416fc2 | 3171 | int /* O - Number of bytes written */ |
e6b1a6a9 | 3172 | httpWrite(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3173 | const char *buffer, /* I - Buffer for data */ |
3174 | int length) /* I - Number of bytes to write */ | |
3175 | { | |
7e86f2f6 | 3176 | return ((int)httpWrite2(http, buffer, (size_t)length)); |
a4d04587 | 3177 | } |
3178 | ||
3179 | ||
3180 | /* | |
3181 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3182 | * |
8072030b | 3183 | * @since CUPS 1.2/macOS 10.5@ |
a4d04587 | 3184 | */ |
ef55b745 | 3185 | |
a4d04587 | 3186 | ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 3187 | httpWrite2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 3188 | const char *buffer, /* I - Buffer for data */ |
3189 | size_t length) /* I - Number of bytes to write */ | |
3190 | { | |
3191 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3192 | |
3193 | ||
807315e6 | 3194 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
ef416fc2 | 3195 | |
3196 | /* | |
3197 | * Range check input... | |
3198 | */ | |
3199 | ||
a469f8a5 MS |
3200 | if (!http || !buffer) |
3201 | { | |
3202 | DEBUG_puts("1httpWrite2: Returning -1 due to bad input."); | |
ef416fc2 | 3203 | return (-1); |
a469f8a5 | 3204 | } |
ef416fc2 | 3205 | |
3206 | /* | |
3207 | * Mark activity on the connection... | |
3208 | */ | |
3209 | ||
3210 | http->activity = time(NULL); | |
3211 | ||
3212 | /* | |
3213 | * Buffer small writes for better performance... | |
3214 | */ | |
3215 | ||
a469f8a5 | 3216 | #ifdef HAVE_LIBZ |
d423d83d | 3217 | if (http->coding == _HTTP_CODING_GZIP || http->coding == _HTTP_CODING_DEFLATE) |
a469f8a5 MS |
3218 | { |
3219 | DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding)); | |
3220 | ||
3221 | if (length == 0) | |
3222 | { | |
3223 | http_content_coding_finish(http); | |
3224 | bytes = 0; | |
3225 | } | |
3226 | else | |
3227 | { | |
291e4727 MS |
3228 | size_t slen; /* Bytes to write */ |
3229 | ssize_t sret; /* Bytes written */ | |
3230 | ||
a469f8a5 | 3231 | http->stream.next_in = (Bytef *)buffer; |
7e86f2f6 | 3232 | http->stream.avail_in = (uInt)length; |
a469f8a5 MS |
3233 | |
3234 | while (deflate(&(http->stream), Z_NO_FLUSH) == Z_OK) | |
3235 | { | |
546e096b MS |
3236 | DEBUG_printf(("1httpWrite2: avail_out=%d", http->stream.avail_out)); |
3237 | ||
3238 | if (http->stream.avail_out > 0) | |
3239 | continue; | |
3240 | ||
291e4727 | 3241 | slen = _HTTP_MAX_SBUFFER - http->stream.avail_out; |
a469f8a5 | 3242 | |
546e096b MS |
3243 | DEBUG_printf(("1httpWrite2: Writing intermediate chunk, len=%d", (int)slen)); |
3244 | ||
291e4727 MS |
3245 | if (slen > 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
3246 | sret = http_write_chunk(http, (char *)http->sbuffer, slen); | |
3247 | else if (slen > 0) | |
3248 | sret = http_write(http, (char *)http->sbuffer, slen); | |
3249 | else | |
3250 | sret = 0; | |
a469f8a5 | 3251 | |
291e4727 MS |
3252 | if (sret < 0) |
3253 | { | |
3254 | DEBUG_puts("1httpWrite2: Unable to write, returning -1."); | |
3255 | return (-1); | |
a469f8a5 | 3256 | } |
291e4727 MS |
3257 | |
3258 | http->stream.next_out = (Bytef *)http->sbuffer; | |
3259 | http->stream.avail_out = (uInt)_HTTP_MAX_SBUFFER; | |
3260 | } | |
3261 | ||
291e4727 | 3262 | bytes = (ssize_t)length; |
a469f8a5 MS |
3263 | } |
3264 | } | |
3265 | else | |
3266 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 3267 | if (length > 0) |
3268 | { | |
7e86f2f6 | 3269 | if (http->wused && (length + (size_t)http->wused) > sizeof(http->wbuffer)) |
ef416fc2 | 3270 | { |
e07d4801 MS |
3271 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3272 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3273 | |
3274 | httpFlushWrite(http); | |
3275 | } | |
3276 | ||
7e86f2f6 | 3277 | if ((length + (size_t)http->wused) <= sizeof(http->wbuffer) && length < sizeof(http->wbuffer)) |
ef416fc2 | 3278 | { |
3279 | /* | |
3280 | * Write to buffer... | |
3281 | */ | |
3282 | ||
e07d4801 | 3283 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3284 | CUPS_LLCAST length)); |
ef416fc2 | 3285 | |
3286 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3287 | http->wused += (int)length; |
3288 | bytes = (ssize_t)length; | |
ef416fc2 | 3289 | } |
3290 | else | |
3291 | { | |
3292 | /* | |
3293 | * Otherwise write the data directly... | |
3294 | */ | |
3295 | ||
e07d4801 | 3296 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3297 | CUPS_LLCAST length)); |
ef416fc2 | 3298 | |
a469f8a5 | 3299 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
7e86f2f6 | 3300 | bytes = (ssize_t)http_write_chunk(http, buffer, length); |
ef416fc2 | 3301 | else |
7e86f2f6 | 3302 | bytes = (ssize_t)http_write(http, buffer, length); |
ef416fc2 | 3303 | |
e07d4801 | 3304 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3305 | CUPS_LLCAST bytes)); |
ef416fc2 | 3306 | } |
3307 | ||
a469f8a5 | 3308 | if (http->data_encoding == HTTP_ENCODING_LENGTH) |
ef416fc2 | 3309 | http->data_remaining -= bytes; |
3310 | } | |
3311 | else | |
3312 | bytes = 0; | |
3313 | ||
3314 | /* | |
3315 | * Handle end-of-request processing... | |
3316 | */ | |
3317 | ||
a469f8a5 MS |
3318 | if ((http->data_encoding == HTTP_ENCODING_CHUNKED && length == 0) || |
3319 | (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0)) | |
ef416fc2 | 3320 | { |
3321 | /* | |
3322 | * Finished with the transfer; unless we are sending POST or PUT | |
3323 | * data, go idle... | |
3324 | */ | |
3325 | ||
db8b865d | 3326 | #ifdef HAVE_LIBZ |
d423d83d | 3327 | if (http->coding == _HTTP_CODING_GZIP || http->coding == _HTTP_CODING_DEFLATE) |
db8b865d MS |
3328 | http_content_coding_finish(http); |
3329 | #endif /* HAVE_LIBZ */ | |
3330 | ||
ef416fc2 | 3331 | if (http->wused) |
a469f8a5 MS |
3332 | { |
3333 | if (httpFlushWrite(http) < 0) | |
3334 | return (-1); | |
3335 | } | |
ef416fc2 | 3336 | |
a469f8a5 | 3337 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 3338 | { |
3339 | /* | |
3340 | * Send a 0-length chunk at the end of the request... | |
3341 | */ | |
3342 | ||
3343 | http_write(http, "0\r\n\r\n", 5); | |
3344 | ||
3345 | /* | |
3346 | * Reset the data state... | |
3347 | */ | |
3348 | ||
a469f8a5 | 3349 | http->data_encoding = HTTP_ENCODING_FIELDS; |
ef416fc2 | 3350 | http->data_remaining = 0; |
3351 | } | |
a469f8a5 MS |
3352 | |
3353 | if (http->state == HTTP_STATE_POST_RECV) | |
3354 | http->state ++; | |
dfc45c1b MS |
3355 | else if (http->state == HTTP_STATE_POST_SEND || |
3356 | http->state == HTTP_STATE_GET_SEND) | |
ad29aeab | 3357 | http->state = HTTP_STATE_WAITING; |
db8b865d | 3358 | else |
cb7f98ee | 3359 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 3360 | |
db8b865d | 3361 | DEBUG_printf(("2httpWrite2: Changed state to %s.", |
48bd1142 | 3362 | httpStateString(http->state))); |
ef416fc2 | 3363 | } |
3364 | ||
a469f8a5 MS |
3365 | DEBUG_printf(("1httpWrite2: Returning " CUPS_LLFMT ".", CUPS_LLCAST bytes)); |
3366 | ||
ef416fc2 | 3367 | return (bytes); |
3368 | } | |
3369 | ||
3370 | ||
a469f8a5 MS |
3371 | /* |
3372 | * 'httpWriteResponse()' - Write a HTTP response to a client connection. | |
3373 | * | |
8072030b | 3374 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
3375 | */ |
3376 | ||
3377 | int /* O - 0 on success, -1 on error */ | |
3378 | httpWriteResponse(http_t *http, /* I - HTTP connection */ | |
3379 | http_status_t status) /* I - Status code */ | |
3380 | { | |
3381 | http_encoding_t old_encoding; /* Old data_encoding value */ | |
3382 | off_t old_remaining; /* Old data_remaining value */ | |
3383 | ||
3384 | ||
3385 | /* | |
3386 | * Range check input... | |
3387 | */ | |
3388 | ||
807315e6 | 3389 | DEBUG_printf(("httpWriteResponse(http=%p, status=%d)", (void *)http, status)); |
a469f8a5 MS |
3390 | |
3391 | if (!http || status < HTTP_STATUS_CONTINUE) | |
3392 | { | |
3393 | DEBUG_puts("1httpWriteResponse: Bad input."); | |
3394 | return (-1); | |
3395 | } | |
3396 | ||
3397 | /* | |
3398 | * Set the various standard fields if they aren't already... | |
3399 | */ | |
3400 | ||
3401 | if (!http->fields[HTTP_FIELD_DATE][0]) | |
3402 | httpSetField(http, HTTP_FIELD_DATE, httpGetDateString(time(NULL))); | |
3403 | ||
cb7f98ee | 3404 | if (status >= HTTP_STATUS_BAD_REQUEST && http->keep_alive) |
a469f8a5 | 3405 | { |
5ec1fd3d | 3406 | http->keep_alive = HTTP_KEEPALIVE_OFF; |
a469f8a5 MS |
3407 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, ""); |
3408 | } | |
3409 | ||
3410 | if (http->version == HTTP_VERSION_1_1) | |
3411 | { | |
3412 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3413 | { | |
3414 | if (http->keep_alive) | |
3415 | httpSetField(http, HTTP_FIELD_CONNECTION, "Keep-Alive"); | |
3416 | else | |
3417 | httpSetField(http, HTTP_FIELD_CONNECTION, "close"); | |
3418 | } | |
3419 | ||
3420 | if (http->keep_alive && !http->fields[HTTP_FIELD_KEEP_ALIVE][0]) | |
3421 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, "timeout=10"); | |
3422 | } | |
3423 | ||
3424 | #ifdef HAVE_SSL | |
e200616a MS |
3425 | if (status == HTTP_STATUS_UPGRADE_REQUIRED || |
3426 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3427 | { |
3428 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3429 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3430 | ||
3431 | if (!http->fields[HTTP_FIELD_UPGRADE][0]) | |
3432 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); | |
e200616a MS |
3433 | |
3434 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) | |
3435 | httpSetField(http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 MS |
3436 | } |
3437 | #endif /* HAVE_SSL */ | |
3438 | ||
3439 | if (!http->server) | |
c1420c87 MS |
3440 | httpSetField(http, HTTP_FIELD_SERVER, |
3441 | http->default_server ? http->default_server : CUPS_MINIMAL); | |
a469f8a5 | 3442 | |
a469f8a5 MS |
3443 | /* |
3444 | * Set the Accept-Encoding field if it isn't already... | |
3445 | */ | |
3446 | ||
3447 | if (!http->accept_encoding) | |
c1420c87 MS |
3448 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, |
3449 | http->default_accept_encoding ? http->default_accept_encoding : | |
3450 | #ifdef HAVE_LIBZ | |
3451 | "gzip, deflate, identity"); | |
3452 | #else | |
3453 | "identity"); | |
a469f8a5 MS |
3454 | #endif /* HAVE_LIBZ */ |
3455 | ||
3456 | /* | |
3457 | * Send the response header... | |
3458 | */ | |
3459 | ||
3460 | old_encoding = http->data_encoding; | |
3461 | old_remaining = http->data_remaining; | |
3462 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
3463 | ||
3464 | if (httpPrintf(http, "HTTP/%d.%d %d %s\r\n", http->version / 100, | |
3465 | http->version % 100, (int)status, httpStatus(status)) < 0) | |
3466 | { | |
3467 | http->status = HTTP_STATUS_ERROR; | |
3468 | return (-1); | |
3469 | } | |
3470 | ||
3471 | if (status != HTTP_STATUS_CONTINUE) | |
3472 | { | |
3473 | /* | |
3474 | * 100 Continue doesn't have the rest of the response headers... | |
3475 | */ | |
3476 | ||
3477 | int i; /* Looping var */ | |
3478 | const char *value; /* Field value */ | |
3479 | ||
3480 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3481 | { | |
3482 | if ((value = httpGetField(http, i)) != NULL && *value) | |
3483 | { | |
3484 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) | |
3485 | { | |
3486 | http->status = HTTP_STATUS_ERROR; | |
3487 | return (-1); | |
3488 | } | |
3489 | } | |
3490 | } | |
3491 | ||
3492 | if (http->cookie) | |
3493 | { | |
6c2b2b19 MS |
3494 | if (strchr(http->cookie, ';')) |
3495 | { | |
3496 | if (httpPrintf(http, "Set-Cookie: %s\r\n", http->cookie) < 1) | |
3497 | { | |
3498 | http->status = HTTP_STATUS_ERROR; | |
3499 | return (-1); | |
3500 | } | |
3501 | } | |
3502 | else if (httpPrintf(http, "Set-Cookie: %s; path=/; httponly;%s\r\n", http->cookie, http->tls ? " secure;" : "") < 1) | |
a469f8a5 | 3503 | { |
cb7f98ee | 3504 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3505 | return (-1); |
3506 | } | |
3507 | } | |
241474b0 MS |
3508 | |
3509 | /* | |
3510 | * "Click-jacking" defense (STR #4492)... | |
3511 | */ | |
3512 | ||
3513 | if (httpPrintf(http, "X-Frame-Options: DENY\r\n" | |
3514 | "Content-Security-Policy: frame-ancestors 'none'\r\n") < 1) | |
3515 | { | |
3516 | http->status = HTTP_STATUS_ERROR; | |
3517 | return (-1); | |
3518 | } | |
a469f8a5 MS |
3519 | } |
3520 | ||
3521 | if (httpWrite2(http, "\r\n", 2) < 2) | |
3522 | { | |
cb7f98ee | 3523 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3524 | return (-1); |
3525 | } | |
3526 | ||
3527 | if (httpFlushWrite(http) < 0) | |
3528 | { | |
cb7f98ee | 3529 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3530 | return (-1); |
3531 | } | |
3532 | ||
e200616a MS |
3533 | if (status == HTTP_STATUS_CONTINUE || |
3534 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3535 | { |
3536 | /* | |
3537 | * Restore the old data_encoding and data_length values... | |
3538 | */ | |
3539 | ||
3540 | http->data_encoding = old_encoding; | |
3541 | http->data_remaining = old_remaining; | |
3542 | ||
3543 | if (old_remaining <= INT_MAX) | |
3544 | http->_data_remaining = (int)old_remaining; | |
3545 | else | |
3546 | http->_data_remaining = INT_MAX; | |
3547 | } | |
3548 | else if (http->state == HTTP_STATE_OPTIONS || | |
3549 | http->state == HTTP_STATE_HEAD || | |
3550 | http->state == HTTP_STATE_PUT || | |
3551 | http->state == HTTP_STATE_TRACE || | |
cb7f98ee MS |
3552 | http->state == HTTP_STATE_CONNECT || |
3553 | http->state == HTTP_STATE_STATUS) | |
a469f8a5 MS |
3554 | { |
3555 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
48bd1142 | 3556 | "was %s.", httpStateString(http->state))); |
a469f8a5 MS |
3557 | http->state = HTTP_STATE_WAITING; |
3558 | } | |
3559 | else | |
3560 | { | |
3561 | /* | |
3562 | * Force data_encoding and data_length to be set according to the response | |
3563 | * headers... | |
3564 | */ | |
3565 | ||
3566 | http_set_length(http); | |
3567 | ||
dfc45c1b MS |
3568 | if (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0) |
3569 | { | |
3570 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
3571 | "was %s.", httpStateString(http->state))); | |
3572 | http->state = HTTP_STATE_WAITING; | |
3573 | return (0); | |
3574 | } | |
3575 | ||
a2f30a72 MS |
3576 | if (http->state == HTTP_STATE_POST_RECV || http->state == HTTP_STATE_GET) |
3577 | http->state ++; | |
3578 | ||
db8b865d | 3579 | #ifdef HAVE_LIBZ |
a469f8a5 MS |
3580 | /* |
3581 | * Then start any content encoding... | |
3582 | */ | |
3583 | ||
3584 | DEBUG_puts("1httpWriteResponse: Calling http_content_coding_start."); | |
3585 | http_content_coding_start(http, | |
3586 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
db8b865d | 3587 | #endif /* HAVE_LIBZ */ |
dfc45c1b | 3588 | |
a469f8a5 MS |
3589 | } |
3590 | ||
3591 | return (0); | |
3592 | } | |
3593 | ||
3594 | ||
1f717210 MS |
3595 | /* |
3596 | * 'http_add_field()' - Add a value for a HTTP field, appending if needed. | |
3597 | */ | |
3598 | ||
3599 | static void | |
3600 | http_add_field(http_t *http, /* I - HTTP connection */ | |
3601 | http_field_t field, /* I - HTTP field */ | |
3602 | const char *value, /* I - Value string */ | |
3603 | int append) /* I - Append value? */ | |
3604 | { | |
3605 | char newvalue[1024]; /* New value string */ | |
3606 | const char *oldvalue; /* Old field value */ | |
3607 | ||
3608 | ||
3609 | ||
3610 | /* | |
3611 | * Optionally append the new value to the existing one... | |
3612 | */ | |
3613 | ||
3614 | if (append && field != HTTP_FIELD_ACCEPT_ENCODING && field != HTTP_FIELD_ACCEPT_LANGUAGE && field != HTTP_FIELD_ACCEPT_RANGES && field != HTTP_FIELD_ALLOW && field != HTTP_FIELD_LINK && field != HTTP_FIELD_TRANSFER_ENCODING && field != HTTP_FIELD_UPGRADE && field != HTTP_FIELD_WWW_AUTHENTICATE) | |
3615 | append = 0; | |
3616 | ||
3617 | if (field == HTTP_FIELD_HOST) | |
3618 | { | |
3619 | /* | |
3620 | * Special-case for Host: as we don't want a trailing "." on the hostname and | |
3621 | * need to bracket IPv6 numeric addresses. | |
3622 | */ | |
3623 | ||
3624 | char *ptr = strchr(value, ':'); | |
3625 | ||
3626 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
3627 | { | |
3628 | /* | |
3629 | * Bracket IPv6 numeric addresses... | |
3630 | */ | |
3631 | ||
3632 | snprintf(newvalue, sizeof(newvalue), "[%s]", value); | |
3633 | value = newvalue; | |
3634 | } | |
3635 | else if (*value && value[strlen(value) - 1] == '.') | |
3636 | { | |
3637 | /* | |
3638 | * Strip the trailing dot on the hostname... | |
3639 | */ | |
3640 | ||
3641 | strlcpy(newvalue, value, sizeof(newvalue)); | |
3642 | newvalue[strlen(newvalue) - 1] = '\0'; | |
3643 | value = newvalue; | |
3644 | } | |
3645 | } | |
bb4172da | 3646 | else if (append && *value && (oldvalue = httpGetField(http, field)) != NULL && *oldvalue) |
1f717210 MS |
3647 | { |
3648 | snprintf(newvalue, sizeof(newvalue), "%s, %s", oldvalue, value); | |
3649 | value = newvalue; | |
3650 | } | |
3651 | ||
3652 | /* | |
3653 | * Save the new value... | |
3654 | */ | |
3655 | ||
3656 | switch (field) | |
3657 | { | |
3658 | case HTTP_FIELD_ACCEPT_ENCODING : | |
3659 | if (http->accept_encoding) | |
3660 | _cupsStrFree(http->accept_encoding); | |
3661 | ||
3662 | http->accept_encoding = _cupsStrAlloc(value); | |
3663 | break; | |
3664 | ||
3665 | case HTTP_FIELD_ALLOW : | |
3666 | if (http->allow) | |
3667 | _cupsStrFree(http->allow); | |
3668 | ||
3669 | http->allow = _cupsStrAlloc(value); | |
3670 | break; | |
3671 | ||
3672 | case HTTP_FIELD_SERVER : | |
3673 | if (http->server) | |
3674 | _cupsStrFree(http->server); | |
3675 | ||
3676 | http->server = _cupsStrAlloc(value); | |
3677 | break; | |
3678 | ||
3679 | default : | |
3680 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
3681 | break; | |
3682 | } | |
3683 | ||
3684 | if (field == HTTP_FIELD_AUTHORIZATION) | |
3685 | { | |
3686 | /* | |
3687 | * Special case for Authorization: as its contents can be | |
3688 | * longer than HTTP_MAX_VALUE | |
3689 | */ | |
3690 | ||
3691 | if (http->field_authorization) | |
3692 | free(http->field_authorization); | |
3693 | ||
3694 | http->field_authorization = strdup(value); | |
3695 | } | |
3696 | #ifdef HAVE_LIBZ | |
3697 | else if (field == HTTP_FIELD_CONTENT_ENCODING && | |
3698 | http->data_encoding != HTTP_ENCODING_FIELDS) | |
3699 | { | |
3700 | DEBUG_puts("1http_add_field: Calling http_content_coding_start."); | |
3701 | http_content_coding_start(http, value); | |
3702 | } | |
3703 | #endif /* HAVE_LIBZ */ | |
3704 | } | |
3705 | ||
3706 | ||
2c85b752 | 3707 | #ifdef HAVE_LIBZ |
411affcf | 3708 | /* |
2c85b752 | 3709 | * 'http_content_coding_finish()' - Finish doing any content encoding. |
411affcf | 3710 | */ |
3711 | ||
2c85b752 MS |
3712 | static void |
3713 | http_content_coding_finish( | |
3714 | http_t *http) /* I - HTTP connection */ | |
a469f8a5 | 3715 | { |
291e4727 MS |
3716 | int zerr; /* Compression status */ |
3717 | Byte dummy[1]; /* Dummy read buffer */ | |
3718 | size_t bytes; /* Number of bytes to write */ | |
a469f8a5 MS |
3719 | |
3720 | ||
807315e6 | 3721 | DEBUG_printf(("http_content_coding_finish(http=%p)", (void *)http)); |
546e096b MS |
3722 | DEBUG_printf(("1http_content_coding_finishing: http->coding=%d", http->coding)); |
3723 | ||
a469f8a5 MS |
3724 | switch (http->coding) |
3725 | { | |
3726 | case _HTTP_CODING_DEFLATE : | |
3727 | case _HTTP_CODING_GZIP : | |
d2263221 MS |
3728 | http->stream.next_in = dummy; |
3729 | http->stream.avail_in = 0; | |
3730 | ||
a469f8a5 MS |
3731 | do |
3732 | { | |
291e4727 MS |
3733 | zerr = deflate(&(http->stream), Z_FINISH); |
3734 | bytes = _HTTP_MAX_SBUFFER - http->stream.avail_out; | |
a469f8a5 | 3735 | |
546e096b MS |
3736 | if (bytes > 0) |
3737 | { | |
3738 | DEBUG_printf(("1http_content_coding_finish: Writing trailing chunk, len=%d", (int)bytes)); | |
3739 | ||
3740 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
3741 | http_write_chunk(http, (char *)http->sbuffer, bytes); | |
3742 | else | |
3743 | http_write(http, (char *)http->sbuffer, bytes); | |
3744 | } | |
3745 | ||
3746 | http->stream.next_out = (Bytef *)http->sbuffer; | |
3747 | http->stream.avail_out = (uInt)_HTTP_MAX_SBUFFER; | |
3748 | } | |
a469f8a5 MS |
3749 | while (zerr == Z_OK); |
3750 | ||
3751 | deflateEnd(&(http->stream)); | |
3752 | ||
291e4727 MS |
3753 | free(http->sbuffer); |
3754 | http->sbuffer = NULL; | |
3755 | ||
a469f8a5 MS |
3756 | if (http->wused) |
3757 | httpFlushWrite(http); | |
3758 | break; | |
3759 | ||
3760 | case _HTTP_CODING_INFLATE : | |
3761 | case _HTTP_CODING_GUNZIP : | |
3762 | inflateEnd(&(http->stream)); | |
291e4727 MS |
3763 | free(http->sbuffer); |
3764 | http->sbuffer = NULL; | |
a469f8a5 MS |
3765 | break; |
3766 | ||
3767 | default : | |
3768 | break; | |
3769 | } | |
3770 | ||
3771 | http->coding = _HTTP_CODING_IDENTITY; | |
3772 | } | |
3773 | ||
3774 | ||
3775 | /* | |
3776 | * 'http_content_coding_start()' - Start doing content encoding. | |
3777 | */ | |
3778 | ||
3779 | static void | |
3780 | http_content_coding_start( | |
3781 | http_t *http, /* I - HTTP connection */ | |
3782 | const char *value) /* I - Value of Content-Encoding */ | |
3783 | { | |
3784 | int zerr; /* Error/status */ | |
3785 | _http_coding_t coding; /* Content coding value */ | |
3786 | ||
3787 | ||
807315e6 | 3788 | DEBUG_printf(("http_content_coding_start(http=%p, value=\"%s\")", (void *)http, value)); |
a469f8a5 MS |
3789 | |
3790 | if (http->coding != _HTTP_CODING_IDENTITY) | |
3791 | { | |
3792 | DEBUG_printf(("1http_content_coding_start: http->coding already %d.", | |
3793 | http->coding)); | |
3794 | return; | |
3795 | } | |
3796 | else if (!strcmp(value, "x-gzip") || !strcmp(value, "gzip")) | |
3797 | { | |
cb7f98ee MS |
3798 | if (http->state == HTTP_STATE_GET_SEND || |
3799 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3800 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_GZIP : |
3801 | _HTTP_CODING_GUNZIP; | |
cb7f98ee MS |
3802 | else if (http->state == HTTP_STATE_POST_RECV || |
3803 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3804 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_GZIP : |
3805 | _HTTP_CODING_GUNZIP; | |
3806 | else | |
3807 | { | |
3808 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3809 | return; | |
3810 | } | |
3811 | } | |
3812 | else if (!strcmp(value, "x-deflate") || !strcmp(value, "deflate")) | |
3813 | { | |
cb7f98ee MS |
3814 | if (http->state == HTTP_STATE_GET_SEND || |
3815 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3816 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_DEFLATE : |
3817 | _HTTP_CODING_INFLATE; | |
cb7f98ee MS |
3818 | else if (http->state == HTTP_STATE_POST_RECV || |
3819 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3820 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_DEFLATE : |
3821 | _HTTP_CODING_INFLATE; | |
3822 | else | |
3823 | { | |
3824 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3825 | return; | |
3826 | } | |
3827 | } | |
3828 | else | |
3829 | { | |
3830 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3831 | return; | |
3832 | } | |
3833 | ||
3834 | memset(&(http->stream), 0, sizeof(http->stream)); | |
3835 | ||
3836 | switch (coding) | |
3837 | { | |
3838 | case _HTTP_CODING_DEFLATE : | |
3839 | case _HTTP_CODING_GZIP : | |
3840 | if (http->wused) | |
3841 | httpFlushWrite(http); | |
3842 | ||
291e4727 MS |
3843 | if ((http->sbuffer = malloc(_HTTP_MAX_SBUFFER)) == NULL) |
3844 | { | |
3845 | http->status = HTTP_STATUS_ERROR; | |
3846 | http->error = errno; | |
3847 | return; | |
3848 | } | |
3849 | ||
db8b865d MS |
3850 | /* |
3851 | * Window size for compression is 11 bits - optimal based on PWG Raster | |
3852 | * sample files on pwg.org. -11 is raw deflate, 27 is gzip, per ZLIB | |
3853 | * documentation. | |
3854 | */ | |
3855 | ||
a469f8a5 MS |
3856 | if ((zerr = deflateInit2(&(http->stream), Z_DEFAULT_COMPRESSION, |
3857 | Z_DEFLATED, | |
db8b865d | 3858 | coding == _HTTP_CODING_DEFLATE ? -11 : 27, 7, |
a469f8a5 MS |
3859 | Z_DEFAULT_STRATEGY)) < Z_OK) |
3860 | { | |
cb7f98ee | 3861 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3862 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3863 | return; | |
3864 | } | |
546e096b MS |
3865 | |
3866 | http->stream.next_out = (Bytef *)http->sbuffer; | |
3867 | http->stream.avail_out = (uInt)_HTTP_MAX_SBUFFER; | |
a469f8a5 MS |
3868 | break; |
3869 | ||
3870 | case _HTTP_CODING_INFLATE : | |
3871 | case _HTTP_CODING_GUNZIP : | |
291e4727 | 3872 | if ((http->sbuffer = malloc(_HTTP_MAX_SBUFFER)) == NULL) |
a469f8a5 | 3873 | { |
cb7f98ee | 3874 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa | 3875 | http->error = errno; |
a469f8a5 MS |
3876 | return; |
3877 | } | |
0fa6c7fa | 3878 | |
db8b865d MS |
3879 | /* |
3880 | * Window size for decompression is up to 15 bits (maximum supported). | |
3881 | * -15 is raw inflate, 31 is gunzip, per ZLIB documentation. | |
3882 | */ | |
3883 | ||
0fa6c7fa | 3884 | if ((zerr = inflateInit2(&(http->stream), |
db8b865d | 3885 | coding == _HTTP_CODING_INFLATE ? -15 : 31)) |
0fa6c7fa MS |
3886 | < Z_OK) |
3887 | { | |
291e4727 MS |
3888 | free(http->sbuffer); |
3889 | http->sbuffer = NULL; | |
cb7f98ee | 3890 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa MS |
3891 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3892 | return; | |
3893 | } | |
3894 | ||
3895 | http->stream.avail_in = 0; | |
291e4727 | 3896 | http->stream.next_in = http->sbuffer; |
a469f8a5 MS |
3897 | break; |
3898 | ||
3899 | default : | |
3900 | break; | |
3901 | } | |
3902 | ||
3903 | http->coding = coding; | |
3904 | ||
3905 | DEBUG_printf(("1http_content_coding_start: http->coding now %d.", | |
3906 | http->coding)); | |
3907 | } | |
3908 | #endif /* HAVE_LIBZ */ | |
3909 | ||
3910 | ||
db8b865d MS |
3911 | /* |
3912 | * 'http_create()' - Create an unconnected HTTP connection. | |
3913 | */ | |
3914 | ||
3915 | static http_t * /* O - HTTP connection */ | |
3916 | http_create( | |
3917 | const char *host, /* I - Hostname */ | |
3918 | int port, /* I - Port number */ | |
98d88c8d | 3919 | http_addrlist_t *addrlist, /* I - Address list or @code NULL@ */ |
db8b865d MS |
3920 | int family, /* I - Address family or AF_UNSPEC */ |
3921 | http_encryption_t encryption, /* I - Encryption to use */ | |
3922 | int blocking, /* I - 1 for blocking mode */ | |
3923 | _http_mode_t mode) /* I - _HTTP_MODE_CLIENT or _SERVER */ | |
3924 | { | |
3925 | http_t *http; /* New HTTP connection */ | |
3926 | char service[255]; /* Service name */ | |
3927 | http_addrlist_t *myaddrlist = NULL; /* My address list */ | |
3928 | ||
3929 | ||
807315e6 | 3930 | DEBUG_printf(("4http_create(host=\"%s\", port=%d, addrlist=%p, family=%d, encryption=%d, blocking=%d, mode=%d)", host, port, (void *)addrlist, family, encryption, blocking, mode)); |
db8b865d MS |
3931 | |
3932 | if (!host && mode == _HTTP_MODE_CLIENT) | |
3933 | return (NULL); | |
3934 | ||
3935 | httpInitialize(); | |
3936 | ||
3937 | /* | |
3938 | * Lookup the host... | |
3939 | */ | |
3940 | ||
3941 | if (addrlist) | |
3942 | { | |
3943 | myaddrlist = httpAddrCopyList(addrlist); | |
3944 | } | |
3945 | else | |
3946 | { | |
3947 | snprintf(service, sizeof(service), "%d", port); | |
3948 | ||
3949 | myaddrlist = httpAddrGetList(host, family, service); | |
3950 | } | |
3951 | ||
3952 | if (!myaddrlist) | |
3953 | return (NULL); | |
3954 | ||
3955 | /* | |
3956 | * Allocate memory for the structure... | |
3957 | */ | |
3958 | ||
3959 | if ((http = calloc(sizeof(http_t), 1)) == NULL) | |
3960 | { | |
cb7f98ee | 3961 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); |
db8b865d MS |
3962 | httpAddrFreeList(addrlist); |
3963 | return (NULL); | |
3964 | } | |
3965 | ||
3966 | /* | |
3967 | * Initialize the HTTP data... | |
3968 | */ | |
3969 | ||
3970 | http->mode = mode; | |
3971 | http->activity = time(NULL); | |
3972 | http->addrlist = myaddrlist; | |
3973 | http->blocking = blocking; | |
3974 | http->fd = -1; | |
3975 | #ifdef HAVE_GSSAPI | |
3976 | http->gssctx = GSS_C_NO_CONTEXT; | |
3977 | http->gssname = GSS_C_NO_NAME; | |
3978 | #endif /* HAVE_GSSAPI */ | |
cb7f98ee | 3979 | http->status = HTTP_STATUS_CONTINUE; |
db8b865d MS |
3980 | http->version = HTTP_VERSION_1_1; |
3981 | ||
3982 | if (host) | |
3983 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
3984 | ||
3985 | if (port == 443) /* Always use encryption for https */ | |
3986 | http->encryption = HTTP_ENCRYPTION_ALWAYS; | |
3987 | else | |
3988 | http->encryption = encryption; | |
3989 | ||
3990 | http_set_wait(http); | |
3991 | ||
3992 | /* | |
3993 | * Return the new structure... | |
3994 | */ | |
3995 | ||
3996 | return (http); | |
3997 | } | |
3998 | ||
db8b865d | 3999 | |
ae71f5de MS |
4000 | #ifdef DEBUG |
4001 | /* | |
4002 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
4003 | */ | |
4004 | ||
4005 | static void | |
4006 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
4007 | const char *buffer, /* I - Buffer to dump */ | |
4008 | int bytes) /* I - Bytes to dump */ | |
4009 | { | |
4010 | int i, j, /* Looping vars */ | |
4011 | ch; /* Current character */ | |
4012 | char line[255], /* Line buffer */ | |
4013 | *start, /* Start of line after prefix */ | |
4014 | *ptr; /* Pointer into line */ | |
4015 | ||
4016 | ||
f11a948a | 4017 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
4018 | return; |
4019 | ||
83e08001 | 4020 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 4021 | |
f11a948a | 4022 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
4023 | start = line + strlen(line); |
4024 | ||
4025 | for (i = 0; i < bytes; i += 16) | |
4026 | { | |
4027 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
341efe62 | 4028 | snprintf(ptr, 3, "%02X", buffer[i + j] & 255); |
ae71f5de MS |
4029 | |
4030 | while (j < 16) | |
4031 | { | |
5a9febac | 4032 | memcpy(ptr, " ", 3); |
ae71f5de MS |
4033 | ptr += 2; |
4034 | j ++; | |
4035 | } | |
4036 | ||
5a9febac | 4037 | memcpy(ptr, " ", 3); |
ae71f5de MS |
4038 | ptr += 2; |
4039 | ||
4040 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
4041 | { | |
4042 | ch = buffer[i + j] & 255; | |
4043 | ||
4044 | if (ch < ' ' || ch >= 127) | |
4045 | ch = '.'; | |
4046 | ||
7e86f2f6 | 4047 | *ptr++ = (char)ch; |
ae71f5de MS |
4048 | } |
4049 | ||
4050 | *ptr = '\0'; | |
4051 | DEBUG_puts(line); | |
4052 | } | |
4053 | } | |
4054 | #endif /* DEBUG */ | |
4055 | ||
4056 | ||
0fa6c7fa MS |
4057 | /* |
4058 | * 'http_read()' - Read a buffer from a HTTP connection. | |
4059 | * | |
4060 | * This function does the low-level read from the socket, retrying and timing | |
4061 | * out as needed. | |
4062 | */ | |
4063 | ||
4064 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4065 | http_read(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4066 | char *buffer, /* I - Buffer */ |
4067 | size_t length) /* I - Maximum bytes to read */ | |
4068 | { | |
4069 | ssize_t bytes; /* Bytes read */ | |
4070 | ||
4071 | ||
807315e6 | 4072 | DEBUG_printf(("http_read(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
0fa6c7fa | 4073 | |
1f717210 | 4074 | if (!http->blocking || http->timeout_value > 0.0) |
0fa6c7fa MS |
4075 | { |
4076 | while (!httpWait(http, http->wait_value)) | |
4077 | { | |
4078 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4079 | continue; | |
4080 | ||
4081 | DEBUG_puts("2http_read: Timeout."); | |
4082 | return (0); | |
4083 | } | |
4084 | } | |
4085 | ||
4086 | DEBUG_printf(("2http_read: Reading %d bytes into buffer.", (int)length)); | |
4087 | ||
4088 | do | |
4089 | { | |
4090 | #ifdef HAVE_SSL | |
4091 | if (http->tls) | |
25731360 | 4092 | bytes = _httpTLSRead(http, buffer, (int)length); |
0fa6c7fa MS |
4093 | else |
4094 | #endif /* HAVE_SSL */ | |
4095 | bytes = recv(http->fd, buffer, length, 0); | |
4096 | ||
4097 | if (bytes < 0) | |
4098 | { | |
4099 | #ifdef WIN32 | |
4100 | if (WSAGetLastError() != WSAEINTR) | |
4101 | { | |
4102 | http->error = WSAGetLastError(); | |
4103 | return (-1); | |
4104 | } | |
4105 | else if (WSAGetLastError() == WSAEWOULDBLOCK) | |
4106 | { | |
4107 | if (!http->timeout_cb || | |
4108 | !(*http->timeout_cb)(http, http->timeout_data)) | |
4109 | { | |
4110 | http->error = WSAEWOULDBLOCK; | |
4111 | return (-1); | |
4112 | } | |
4113 | } | |
4114 | #else | |
4115 | DEBUG_printf(("2http_read: %s", strerror(errno))); | |
4116 | ||
4117 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
4118 | { | |
4119 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
4120 | { | |
4121 | http->error = errno; | |
4122 | return (-1); | |
4123 | } | |
4124 | else if (!http->timeout_cb && errno != EAGAIN) | |
4125 | { | |
4126 | http->error = errno; | |
4127 | return (-1); | |
4128 | } | |
4129 | } | |
4130 | else if (errno != EINTR) | |
4131 | { | |
4132 | http->error = errno; | |
4133 | return (-1); | |
4134 | } | |
4135 | #endif /* WIN32 */ | |
4136 | } | |
4137 | } | |
4138 | while (bytes < 0); | |
4139 | ||
4140 | DEBUG_printf(("2http_read: Read " CUPS_LLFMT " bytes into buffer.", | |
4141 | CUPS_LLCAST bytes)); | |
4142 | #ifdef DEBUG | |
4143 | if (bytes > 0) | |
6961465f | 4144 | http_debug_hex("http_read", buffer, (int)bytes); |
0fa6c7fa MS |
4145 | #endif /* DEBUG */ |
4146 | ||
4147 | if (bytes < 0) | |
4148 | { | |
4149 | #ifdef WIN32 | |
4150 | if (WSAGetLastError() == WSAEINTR) | |
4151 | bytes = 0; | |
4152 | else | |
4153 | http->error = WSAGetLastError(); | |
4154 | #else | |
4155 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) | |
4156 | bytes = 0; | |
4157 | else | |
4158 | http->error = errno; | |
4159 | #endif /* WIN32 */ | |
4160 | } | |
4161 | else if (bytes == 0) | |
4162 | { | |
4163 | http->error = EPIPE; | |
4164 | return (0); | |
4165 | } | |
4166 | ||
4167 | return (bytes); | |
4168 | } | |
4169 | ||
4170 | ||
4171 | /* | |
4172 | * 'http_read_buffered()' - Do a buffered read from a HTTP connection. | |
4173 | * | |
4174 | * This function reads data from the HTTP buffer or from the socket, as needed. | |
4175 | */ | |
4176 | ||
4177 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4178 | http_read_buffered(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4179 | char *buffer, /* I - Buffer */ |
4180 | size_t length) /* I - Maximum bytes to read */ | |
4181 | { | |
4182 | ssize_t bytes; /* Bytes read */ | |
4183 | ||
4184 | ||
807315e6 | 4185 | DEBUG_printf(("http_read_buffered(http=%p, buffer=%p, length=" CUPS_LLFMT ") used=%d", (void *)http, (void *)buffer, CUPS_LLCAST length, http->used)); |
0fa6c7fa MS |
4186 | |
4187 | if (http->used > 0) | |
4188 | { | |
4189 | if (length > (size_t)http->used) | |
7e86f2f6 | 4190 | bytes = (ssize_t)http->used; |
0fa6c7fa | 4191 | else |
7e86f2f6 | 4192 | bytes = (ssize_t)length; |
0fa6c7fa MS |
4193 | |
4194 | DEBUG_printf(("2http_read: Grabbing %d bytes from input buffer.", | |
4195 | (int)bytes)); | |
4196 | ||
07623986 | 4197 | memcpy(buffer, http->buffer, (size_t)bytes); |
0fa6c7fa MS |
4198 | http->used -= (int)bytes; |
4199 | ||
4200 | if (http->used > 0) | |
07623986 | 4201 | memmove(http->buffer, http->buffer + bytes, (size_t)http->used); |
0fa6c7fa MS |
4202 | } |
4203 | else | |
4204 | bytes = http_read(http, buffer, length); | |
4205 | ||
4206 | return (bytes); | |
4207 | } | |
4208 | ||
4209 | ||
4210 | /* | |
4211 | * 'http_read_chunk()' - Read a chunk from a HTTP connection. | |
4212 | * | |
4213 | * This function reads and validates the chunk length, then does a buffered read | |
4214 | * returning the number of bytes placed in the buffer. | |
4215 | */ | |
4216 | ||
4217 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4218 | http_read_chunk(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4219 | char *buffer, /* I - Buffer */ |
4220 | size_t length) /* I - Maximum bytes to read */ | |
4221 | { | |
807315e6 | 4222 | DEBUG_printf(("http_read_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
0fa6c7fa MS |
4223 | |
4224 | if (http->data_remaining <= 0) | |
4225 | { | |
4226 | char len[32]; /* Length string */ | |
4227 | ||
4228 | if (!httpGets(len, sizeof(len), http)) | |
4229 | { | |
4230 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4231 | return (0); | |
4232 | } | |
4233 | ||
4234 | if (!len[0]) | |
4235 | { | |
4236 | DEBUG_puts("1http_read_chunk: Blank chunk length, trying again..."); | |
4237 | if (!httpGets(len, sizeof(len), http)) | |
4238 | { | |
4239 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4240 | return (0); | |
4241 | } | |
4242 | } | |
4243 | ||
4244 | http->data_remaining = strtoll(len, NULL, 16); | |
4245 | ||
4246 | if (http->data_remaining < 0) | |
4247 | { | |
4248 | DEBUG_printf(("1http_read_chunk: Negative chunk length \"%s\" (" | |
4249 | CUPS_LLFMT ")", len, CUPS_LLCAST http->data_remaining)); | |
4250 | return (0); | |
4251 | } | |
4252 | ||
4253 | DEBUG_printf(("2http_read_chunk: Got chunk length \"%s\" (" CUPS_LLFMT ")", | |
4254 | len, CUPS_LLCAST http->data_remaining)); | |
4255 | ||
4256 | if (http->data_remaining == 0) | |
4257 | { | |
4258 | /* | |
4259 | * 0-length chunk, grab trailing blank line... | |
4260 | */ | |
4261 | ||
4262 | httpGets(len, sizeof(len), http); | |
4263 | } | |
4264 | } | |
4265 | ||
4266 | DEBUG_printf(("2http_read_chunk: data_remaining=" CUPS_LLFMT, | |
4267 | CUPS_LLCAST http->data_remaining)); | |
4268 | ||
4269 | if (http->data_remaining <= 0) | |
4270 | return (0); | |
4271 | else if (length > (size_t)http->data_remaining) | |
4272 | length = (size_t)http->data_remaining; | |
4273 | ||
4274 | return (http_read_buffered(http, buffer, length)); | |
4275 | } | |
4276 | ||
4277 | ||
ef416fc2 | 4278 | /* |
4279 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
4280 | */ | |
4281 | ||
a469f8a5 | 4282 | static int /* O - 0 on success, non-zero on error */ |
e6b1a6a9 | 4283 | http_send(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
4284 | http_state_t request, /* I - Request code */ |
4285 | const char *uri) /* I - URI */ | |
ef416fc2 | 4286 | { |
a469f8a5 MS |
4287 | int i; /* Looping var */ |
4288 | char buf[1024]; /* Encoded URI buffer */ | |
4289 | const char *value; /* Field value */ | |
4290 | static const char * const codes[] = /* Request code strings */ | |
4291 | { | |
ef416fc2 | 4292 | NULL, |
4293 | "OPTIONS", | |
4294 | "GET", | |
4295 | NULL, | |
4296 | "HEAD", | |
4297 | "POST", | |
4298 | NULL, | |
4299 | NULL, | |
4300 | "PUT", | |
4301 | NULL, | |
4302 | "DELETE", | |
4303 | "TRACE", | |
a469f8a5 MS |
4304 | "CLOSE", |
4305 | NULL, | |
4306 | NULL | |
ef416fc2 | 4307 | }; |
ef416fc2 | 4308 | |
4309 | ||
807315e6 | 4310 | DEBUG_printf(("4http_send(http=%p, request=HTTP_%s, uri=\"%s\")", (void *)http, codes[request], uri)); |
ef416fc2 | 4311 | |
4312 | if (http == NULL || uri == NULL) | |
4313 | return (-1); | |
4314 | ||
4315 | /* | |
4316 | * Set the User-Agent field if it isn't already... | |
4317 | */ | |
4318 | ||
4319 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
db8b865d MS |
4320 | { |
4321 | if (http->default_user_agent) | |
4322 | httpSetField(http, HTTP_FIELD_USER_AGENT, http->default_user_agent); | |
4323 | else | |
4324 | httpSetField(http, HTTP_FIELD_USER_AGENT, cupsUserAgent()); | |
4325 | } | |
ef416fc2 | 4326 | |
a469f8a5 MS |
4327 | /* |
4328 | * Set the Accept-Encoding field if it isn't already... | |
4329 | */ | |
4330 | ||
c1420c87 MS |
4331 | if (!http->accept_encoding && http->default_accept_encoding) |
4332 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, | |
4333 | http->default_accept_encoding); | |
a469f8a5 | 4334 | |
ef416fc2 | 4335 | /* |
4336 | * Encode the URI as needed... | |
4337 | */ | |
4338 | ||
839a51c8 | 4339 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 4340 | |
4341 | /* | |
4342 | * See if we had an error the last time around; if so, reconnect... | |
4343 | */ | |
4344 | ||
cb7f98ee MS |
4345 | if (http->fd < 0 || http->status == HTTP_STATUS_ERROR || |
4346 | http->status >= HTTP_STATUS_BAD_REQUEST) | |
4347 | { | |
4348 | DEBUG_printf(("5http_send: Reconnecting, fd=%d, status=%d, tls_upgrade=%d", | |
4349 | http->fd, http->status, http->tls_upgrade)); | |
4350 | ||
4351 | if (httpReconnect2(http, 30000, NULL)) | |
fa73b229 | 4352 | return (-1); |
cb7f98ee | 4353 | } |
ef416fc2 | 4354 | |
d09495fa | 4355 | /* |
4356 | * Flush any written data that is pending... | |
4357 | */ | |
4358 | ||
4359 | if (http->wused) | |
536bc2c6 MS |
4360 | { |
4361 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 4362 | if (httpReconnect2(http, 30000, NULL)) |
536bc2c6 MS |
4363 | return (-1); |
4364 | } | |
d09495fa | 4365 | |
ef416fc2 | 4366 | /* |
4367 | * Send the request header... | |
4368 | */ | |
4369 | ||
d09495fa | 4370 | http->state = request; |
a469f8a5 | 4371 | http->data_encoding = HTTP_ENCODING_FIELDS; |
d09495fa | 4372 | |
cb7f98ee | 4373 | if (request == HTTP_STATE_POST || request == HTTP_STATE_PUT) |
ef416fc2 | 4374 | http->state ++; |
4375 | ||
cb7f98ee | 4376 | http->status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 4377 | |
4378 | #ifdef HAVE_SSL | |
cb7f98ee | 4379 | if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) |
ef416fc2 | 4380 | { |
4381 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
a469f8a5 | 4382 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4383 | } |
4384 | #endif /* HAVE_SSL */ | |
4385 | ||
4386 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
4387 | { | |
cb7f98ee | 4388 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4389 | return (-1); |
4390 | } | |
4391 | ||
4392 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
a469f8a5 | 4393 | if ((value = httpGetField(http, i)) != NULL && *value) |
ef416fc2 | 4394 | { |
cb7f98ee | 4395 | DEBUG_printf(("5http_send: %s: %s", http_fields[i], value)); |
ef416fc2 | 4396 | |
37e7e6e0 MS |
4397 | if (i == HTTP_FIELD_HOST) |
4398 | { | |
a469f8a5 MS |
4399 | if (httpPrintf(http, "Host: %s:%d\r\n", value, |
4400 | httpAddrPort(http->hostaddr)) < 1) | |
37e7e6e0 | 4401 | { |
cb7f98ee | 4402 | http->status = HTTP_STATUS_ERROR; |
37e7e6e0 MS |
4403 | return (-1); |
4404 | } | |
4405 | } | |
a469f8a5 | 4406 | else if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) |
ef416fc2 | 4407 | { |
cb7f98ee | 4408 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4409 | return (-1); |
4410 | } | |
4411 | } | |
4412 | ||
4413 | if (http->cookie) | |
4414 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
4415 | { | |
cb7f98ee | 4416 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4417 | return (-1); |
4418 | } | |
4419 | ||
cb7f98ee MS |
4420 | DEBUG_printf(("5http_send: expect=%d, mode=%d, state=%d", http->expect, |
4421 | http->mode, http->state)); | |
4422 | ||
4423 | if (http->expect == HTTP_STATUS_CONTINUE && http->mode == _HTTP_MODE_CLIENT && | |
4424 | (http->state == HTTP_STATE_POST_RECV || | |
4425 | http->state == HTTP_STATE_PUT_RECV)) | |
b423cd4c | 4426 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) |
4427 | { | |
cb7f98ee | 4428 | http->status = HTTP_STATUS_ERROR; |
b423cd4c | 4429 | return (-1); |
4430 | } | |
4431 | ||
ef416fc2 | 4432 | if (httpPrintf(http, "\r\n") < 1) |
4433 | { | |
cb7f98ee | 4434 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4435 | return (-1); |
4436 | } | |
4437 | ||
536bc2c6 MS |
4438 | if (httpFlushWrite(http) < 0) |
4439 | return (-1); | |
4440 | ||
a469f8a5 | 4441 | http_set_length(http); |
ef416fc2 | 4442 | httpClearFields(http); |
4443 | ||
f7deaa1a | 4444 | /* |
b94498cf | 4445 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 4446 | */ |
4447 | ||
ef55b745 MS |
4448 | if (http->field_authorization && http->authstring && |
4449 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 4450 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 4451 | { |
4452 | http->_authstring[0] = '\0'; | |
4453 | ||
4454 | if (http->authstring != http->_authstring) | |
4455 | free(http->authstring); | |
ef55b745 | 4456 | |
f7deaa1a | 4457 | http->authstring = http->_authstring; |
4458 | } | |
4459 | ||
ef416fc2 | 4460 | return (0); |
4461 | } | |
4462 | ||
4463 | ||
a469f8a5 MS |
4464 | /* |
4465 | * 'http_set_length()' - Set the data_encoding and data_remaining values. | |
4466 | */ | |
4467 | ||
4468 | static off_t /* O - Remainder or -1 on error */ | |
4469 | http_set_length(http_t *http) /* I - Connection */ | |
4470 | { | |
4471 | off_t remaining; /* Remainder */ | |
4472 | ||
4473 | ||
807315e6 | 4474 | DEBUG_printf(("http_set_length(http=%p) mode=%d state=%s", (void *)http, http->mode, httpStateString(http->state))); |
a469f8a5 MS |
4475 | |
4476 | if ((remaining = httpGetLength2(http)) >= 0) | |
4477 | { | |
4478 | if (http->mode == _HTTP_MODE_SERVER && | |
4479 | http->state != HTTP_STATE_GET_SEND && | |
c41769ff | 4480 | http->state != HTTP_STATE_PUT && |
a469f8a5 MS |
4481 | http->state != HTTP_STATE_POST && |
4482 | http->state != HTTP_STATE_POST_SEND) | |
4483 | { | |
4484 | DEBUG_puts("1http_set_length: Not setting data_encoding/remaining."); | |
4485 | return (remaining); | |
4486 | } | |
4487 | ||
4488 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], | |
4489 | "chunked")) | |
4490 | { | |
4491 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4492 | "HTTP_ENCODING_CHUNKED."); | |
4493 | http->data_encoding = HTTP_ENCODING_CHUNKED; | |
4494 | } | |
4495 | else | |
4496 | { | |
4497 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4498 | "HTTP_ENCODING_LENGTH."); | |
4499 | http->data_encoding = HTTP_ENCODING_LENGTH; | |
4500 | } | |
4501 | ||
4502 | DEBUG_printf(("1http_set_length: Setting data_remaining to " CUPS_LLFMT ".", | |
4503 | CUPS_LLCAST remaining)); | |
4504 | http->data_remaining = remaining; | |
4505 | ||
4506 | if (remaining <= INT_MAX) | |
7e86f2f6 | 4507 | http->_data_remaining = (int)remaining; |
a469f8a5 MS |
4508 | else |
4509 | http->_data_remaining = INT_MAX; | |
4510 | } | |
4511 | ||
4512 | return (remaining); | |
4513 | } | |
4514 | ||
85dda01c MS |
4515 | /* |
4516 | * 'http_set_timeout()' - Set the socket timeout values. | |
4517 | */ | |
4518 | ||
4519 | static void | |
4520 | http_set_timeout(int fd, /* I - File descriptor */ | |
4521 | double timeout) /* I - Timeout in seconds */ | |
4522 | { | |
4523 | #ifdef WIN32 | |
4524 | DWORD tv = (DWORD)(timeout * 1000); | |
4525 | /* Timeout in milliseconds */ | |
4526 | ||
db8b865d MS |
4527 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4528 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4529 | |
4530 | #else | |
4531 | struct timeval tv; /* Timeout in secs and usecs */ | |
4532 | ||
4533 | tv.tv_sec = (int)timeout; | |
4534 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
4535 | ||
db8b865d MS |
4536 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4537 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4538 | #endif /* WIN32 */ |
4539 | } | |
4540 | ||
4541 | ||
4542 | /* | |
4543 | * 'http_set_wait()' - Set the default wait value for reads. | |
4544 | */ | |
4545 | ||
4546 | static void | |
e6b1a6a9 | 4547 | http_set_wait(http_t *http) /* I - HTTP connection */ |
85dda01c MS |
4548 | { |
4549 | if (http->blocking) | |
4550 | { | |
4551 | http->wait_value = (int)(http->timeout_value * 1000); | |
4552 | ||
4553 | if (http->wait_value <= 0) | |
4554 | http->wait_value = 60000; | |
4555 | } | |
4556 | else | |
4557 | http->wait_value = 10000; | |
4558 | } | |
4559 | ||
4560 | ||
9b66acc5 | 4561 | #ifdef HAVE_SSL |
ef416fc2 | 4562 | /* |
2c85b752 | 4563 | * 'http_tls_upgrade()' - Force upgrade to TLS encryption. |
ef416fc2 | 4564 | */ |
4565 | ||
89d46774 | 4566 | static int /* O - Status of connection */ |
2c85b752 | 4567 | http_tls_upgrade(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 4568 | { |
89d46774 | 4569 | int ret; /* Return value */ |
4570 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4571 | |
4572 | ||
807315e6 | 4573 | DEBUG_printf(("7http_tls_upgrade(%p)", (void *)http)); |
ef416fc2 | 4574 | |
85b5d1df MS |
4575 | /* |
4576 | * Flush the connection to make sure any previous "Upgrade" message | |
4577 | * has been read. | |
4578 | */ | |
4579 | ||
4580 | httpFlush(http); | |
4581 | ||
ef416fc2 | 4582 | /* |
4583 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4584 | * request without interfering with the existing request data... | |
4585 | */ | |
4586 | ||
4587 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4588 | ||
4589 | /* | |
4590 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4591 | * encryption on the link... | |
4592 | */ | |
4593 | ||
cb7f98ee | 4594 | http->tls_upgrade = 1; |
f7deaa1a | 4595 | http->field_authorization = NULL; /* Don't free the auth string */ |
4596 | ||
b86bc4cf | 4597 | httpClearFields(http); |
4598 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
a469f8a5 | 4599 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4600 | |
b86bc4cf | 4601 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4602 | { |
4603 | /* | |
4604 | * Wait for the secure connection... | |
4605 | */ | |
4606 | ||
cb7f98ee | 4607 | while (httpUpdate(http) == HTTP_STATUS_CONTINUE); |
ef416fc2 | 4608 | } |
4609 | ||
ef416fc2 | 4610 | /* |
b86bc4cf | 4611 | * Restore the HTTP request data... |
ef416fc2 | 4612 | */ |
4613 | ||
b86bc4cf | 4614 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4615 | http->data_encoding = myhttp.data_encoding; |
4616 | http->data_remaining = myhttp.data_remaining; | |
4617 | http->_data_remaining = myhttp._data_remaining; | |
4618 | http->expect = myhttp.expect; | |
4619 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4620 | http->digest_tries = myhttp.digest_tries; |
cb7f98ee | 4621 | http->tls_upgrade = 0; |
ef416fc2 | 4622 | |
4623 | /* | |
4624 | * See if we actually went secure... | |
4625 | */ | |
4626 | ||
4627 | if (!http->tls) | |
4628 | { | |
4629 | /* | |
4630 | * Server does not support HTTP upgrade... | |
4631 | */ | |
4632 | ||
2c85b752 | 4633 | DEBUG_puts("8http_tls_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4634 | |
4cecbbe8 | 4635 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, _("Encryption is not supported."), 1); |
87e98392 | 4636 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 4637 | |
4638 | http->fd = -1; | |
4639 | ||
4640 | return (-1); | |
4641 | } | |
4642 | else | |
4643 | return (ret); | |
4644 | } | |
4645 | #endif /* HAVE_SSL */ | |
4646 | ||
4647 | ||
ef416fc2 | 4648 | /* |
4649 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4650 | */ | |
ef55b745 | 4651 | |
0fa6c7fa | 4652 | static ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 4653 | http_write(http_t *http, /* I - HTTP connection */ |
f11a948a | 4654 | const char *buffer, /* I - Buffer for data */ |
0fa6c7fa | 4655 | size_t length) /* I - Number of bytes to write */ |
ef416fc2 | 4656 | { |
0fa6c7fa MS |
4657 | ssize_t tbytes, /* Total bytes sent */ |
4658 | bytes; /* Bytes sent */ | |
ef416fc2 | 4659 | |
4660 | ||
807315e6 | 4661 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
f11a948a MS |
4662 | http->error = 0; |
4663 | tbytes = 0; | |
ef416fc2 | 4664 | |
4665 | while (length > 0) | |
4666 | { | |
12f89d24 MS |
4667 | DEBUG_printf(("3http_write: About to write %d bytes.", (int)length)); |
4668 | ||
1f717210 | 4669 | if (http->timeout_value > 0.0) |
85dda01c MS |
4670 | { |
4671 | #ifdef HAVE_POLL | |
4672 | struct pollfd pfd; /* Polled file descriptor */ | |
4673 | #else | |
4674 | fd_set output_set; /* Output ready for write? */ | |
4675 | struct timeval timeout; /* Timeout value */ | |
4676 | #endif /* HAVE_POLL */ | |
4677 | int nfds; /* Result from select()/poll() */ | |
4678 | ||
4679 | do | |
4680 | { | |
4681 | #ifdef HAVE_POLL | |
4682 | pfd.fd = http->fd; | |
4683 | pfd.events = POLLOUT; | |
4684 | ||
4685 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
82cc1f9a MS |
4686 | (errno == EINTR || errno == EAGAIN)) |
4687 | /* do nothing */; | |
85dda01c MS |
4688 | |
4689 | #else | |
4690 | do | |
4691 | { | |
4692 | FD_ZERO(&output_set); | |
4693 | FD_SET(http->fd, &output_set); | |
4694 | ||
4695 | timeout.tv_sec = http->wait_value / 1000; | |
4696 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4697 | ||
4698 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4699 | } | |
4700 | # ifdef WIN32 | |
4701 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4702 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4703 | # else | |
4704 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4705 | # endif /* WIN32 */ | |
4706 | #endif /* HAVE_POLL */ | |
4707 | ||
4708 | if (nfds < 0) | |
4709 | { | |
4710 | http->error = errno; | |
4711 | return (-1); | |
4712 | } | |
1f717210 | 4713 | else if (nfds == 0 && (!http->timeout_cb || !(*http->timeout_cb)(http, http->timeout_data))) |
85dda01c MS |
4714 | { |
4715 | #ifdef WIN32 | |
83e08001 | 4716 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4717 | #else |
4718 | http->error = EWOULDBLOCK; | |
4719 | #endif /* WIN32 */ | |
4720 | return (-1); | |
4721 | } | |
4722 | } | |
4723 | while (nfds <= 0); | |
4724 | } | |
4725 | ||
ef416fc2 | 4726 | #ifdef HAVE_SSL |
4727 | if (http->tls) | |
25731360 | 4728 | bytes = _httpTLSWrite(http, buffer, (int)length); |
ef416fc2 | 4729 | else |
4730 | #endif /* HAVE_SSL */ | |
4731 | bytes = send(http->fd, buffer, length, 0); | |
4732 | ||
0fa6c7fa MS |
4733 | DEBUG_printf(("3http_write: Write of " CUPS_LLFMT " bytes returned " |
4734 | CUPS_LLFMT ".", CUPS_LLCAST length, CUPS_LLCAST bytes)); | |
12f89d24 | 4735 | |
ef416fc2 | 4736 | if (bytes < 0) |
4737 | { | |
4738 | #ifdef WIN32 | |
10d09e33 | 4739 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4740 | continue; |
10d09e33 MS |
4741 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4742 | { | |
4743 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4744 | continue; | |
4745 | ||
4746 | http->error = WSAGetLastError(); | |
4747 | } | |
4748 | else if (WSAGetLastError() != http->error && | |
4749 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4750 | { |
4751 | http->error = WSAGetLastError(); | |
4752 | continue; | |
4753 | } | |
10d09e33 | 4754 | |
ef416fc2 | 4755 | #else |
10d09e33 | 4756 | if (errno == EINTR) |
ef416fc2 | 4757 | continue; |
10d09e33 MS |
4758 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4759 | { | |
4760 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4761 | continue; | |
4762 | else if (!http->timeout_cb && errno == EAGAIN) | |
4763 | continue; | |
4764 | ||
4765 | http->error = errno; | |
4766 | } | |
ef416fc2 | 4767 | else if (errno != http->error && errno != ECONNRESET) |
4768 | { | |
4769 | http->error = errno; | |
4770 | continue; | |
4771 | } | |
4772 | #endif /* WIN32 */ | |
4773 | ||
f8b3a85b MS |
4774 | DEBUG_printf(("3http_write: error writing data (%s).", |
4775 | strerror(http->error))); | |
ef416fc2 | 4776 | |
4777 | return (-1); | |
4778 | } | |
4779 | ||
4780 | buffer += bytes; | |
4781 | tbytes += bytes; | |
7e86f2f6 | 4782 | length -= (size_t)bytes; |
ef416fc2 | 4783 | } |
4784 | ||
4785 | #ifdef DEBUG | |
7e86f2f6 | 4786 | http_debug_hex("http_write", buffer - tbytes, (int)tbytes); |
ef416fc2 | 4787 | #endif /* DEBUG */ |
4788 | ||
0fa6c7fa | 4789 | DEBUG_printf(("3http_write: Returning " CUPS_LLFMT ".", CUPS_LLCAST tbytes)); |
f8b3a85b | 4790 | |
ef416fc2 | 4791 | return (tbytes); |
4792 | } | |
4793 | ||
4794 | ||
4795 | /* | |
4796 | * 'http_write_chunk()' - Write a chunked buffer. | |
4797 | */ | |
4798 | ||
0fa6c7fa | 4799 | static ssize_t /* O - Number bytes written */ |
e6b1a6a9 | 4800 | http_write_chunk(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 4801 | const char *buffer, /* I - Buffer to write */ |
0fa6c7fa | 4802 | size_t length) /* I - Length of buffer */ |
ef416fc2 | 4803 | { |
0fa6c7fa MS |
4804 | char header[16]; /* Chunk header */ |
4805 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 4806 | |
f11a948a | 4807 | |
807315e6 | 4808 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
ef416fc2 | 4809 | |
4810 | /* | |
4811 | * Write the chunk header, data, and trailer. | |
4812 | */ | |
4813 | ||
0fa6c7fa MS |
4814 | snprintf(header, sizeof(header), "%x\r\n", (unsigned)length); |
4815 | if (http_write(http, header, strlen(header)) < 0) | |
ef416fc2 | 4816 | { |
0fa6c7fa | 4817 | DEBUG_puts("8http_write_chunk: http_write of length failed."); |
ef416fc2 | 4818 | return (-1); |
4819 | } | |
4820 | ||
4821 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4822 | { | |
0fa6c7fa | 4823 | DEBUG_puts("8http_write_chunk: http_write of buffer failed."); |
ef416fc2 | 4824 | return (-1); |
4825 | } | |
4826 | ||
4827 | if (http_write(http, "\r\n", 2) < 0) | |
4828 | { | |
0fa6c7fa | 4829 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed."); |
ef416fc2 | 4830 | return (-1); |
4831 | } | |
4832 | ||
4833 | return (bytes); | |
4834 | } |