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Commit | Line | Data |
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ef416fc2 | 1 | /* |
996acce8 | 2 | * HTTP routines for CUPS. |
ef416fc2 | 3 | * |
53af7f21 | 4 | * Copyright 2007-2017 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 | * |
e3101897 | 10 | * Licensed under Apache License v2.0. See the file "LICENSE" for more information. |
ef416fc2 | 11 | */ |
12 | ||
13 | /* | |
14 | * Include necessary headers... | |
15 | */ | |
16 | ||
71e16022 | 17 | #include "cups-private.h" |
ef416fc2 | 18 | #include <fcntl.h> |
83e08001 | 19 | #include <math.h> |
cc754834 MS |
20 | #ifdef WIN32 |
21 | # include <tchar.h> | |
22 | #else | |
ef416fc2 | 23 | # include <signal.h> |
24 | # include <sys/time.h> | |
25 | # include <sys/resource.h> | |
cc754834 | 26 | #endif /* WIN32 */ |
f7deaa1a | 27 | #ifdef HAVE_POLL |
dcb445bc | 28 | # include <poll.h> |
f7deaa1a | 29 | #endif /* HAVE_POLL */ |
ef416fc2 | 30 | |
31 | ||
ef416fc2 | 32 | /* |
33 | * Local functions... | |
34 | */ | |
35 | ||
a469f8a5 MS |
36 | #ifdef HAVE_LIBZ |
37 | static void http_content_coding_finish(http_t *http); | |
38 | static void http_content_coding_start(http_t *http, | |
39 | const char *value); | |
40 | #endif /* HAVE_LIBZ */ | |
db8b865d MS |
41 | static http_t *http_create(const char *host, int port, |
42 | http_addrlist_t *addrlist, int family, | |
43 | http_encryption_t encryption, | |
44 | int blocking, _http_mode_t mode); | |
ae71f5de MS |
45 | #ifdef DEBUG |
46 | static void http_debug_hex(const char *prefix, const char *buffer, | |
47 | int bytes); | |
48 | #endif /* DEBUG */ | |
0fa6c7fa MS |
49 | static ssize_t http_read(http_t *http, char *buffer, size_t length); |
50 | static ssize_t http_read_buffered(http_t *http, char *buffer, size_t length); | |
51 | static ssize_t http_read_chunk(http_t *http, char *buffer, size_t length); | |
ef416fc2 | 52 | static int http_send(http_t *http, http_state_t request, |
53 | const char *uri); | |
0fa6c7fa MS |
54 | static ssize_t http_write(http_t *http, const char *buffer, |
55 | size_t length); | |
56 | static ssize_t http_write_chunk(http_t *http, const char *buffer, | |
57 | size_t length); | |
a469f8a5 | 58 | static off_t http_set_length(http_t *http); |
85dda01c MS |
59 | static void http_set_timeout(int fd, double timeout); |
60 | static void http_set_wait(http_t *http); | |
2c85b752 | 61 | |
d7225fc2 | 62 | #ifdef HAVE_SSL |
2c85b752 | 63 | static int http_tls_upgrade(http_t *http); |
ef416fc2 | 64 | #endif /* HAVE_SSL */ |
65 | ||
66 | ||
67 | /* | |
68 | * Local globals... | |
69 | */ | |
70 | ||
71 | static const char * const http_fields[] = | |
72 | { | |
73 | "Accept-Language", | |
74 | "Accept-Ranges", | |
75 | "Authorization", | |
76 | "Connection", | |
77 | "Content-Encoding", | |
78 | "Content-Language", | |
79 | "Content-Length", | |
80 | "Content-Location", | |
81 | "Content-MD5", | |
82 | "Content-Range", | |
83 | "Content-Type", | |
84 | "Content-Version", | |
85 | "Date", | |
86 | "Host", | |
87 | "If-Modified-Since", | |
88 | "If-Unmodified-since", | |
89 | "Keep-Alive", | |
90 | "Last-Modified", | |
91 | "Link", | |
92 | "Location", | |
93 | "Range", | |
94 | "Referer", | |
95 | "Retry-After", | |
96 | "Transfer-Encoding", | |
97 | "Upgrade", | |
98 | "User-Agent", | |
a469f8a5 MS |
99 | "WWW-Authenticate", |
100 | "Accept-Encoding", | |
101 | "Allow", | |
102 | "Server" | |
ef416fc2 | 103 | }; |
104 | ||
105 | ||
a469f8a5 MS |
106 | /* |
107 | * 'httpAcceptConnection()' - Accept a new HTTP client connection from the | |
108 | * specified listening socket. | |
109 | * | |
8072030b | 110 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
111 | */ |
112 | ||
113 | http_t * /* O - HTTP connection or @code NULL@ */ | |
114 | httpAcceptConnection(int fd, /* I - Listen socket file descriptor */ | |
115 | int blocking) /* I - 1 if the connection should be | |
116 | blocking, 0 otherwise */ | |
117 | { | |
118 | http_t *http; /* HTTP connection */ | |
119 | http_addrlist_t addrlist; /* Dummy address list */ | |
120 | socklen_t addrlen; /* Length of address */ | |
121 | int val; /* Socket option value */ | |
122 | ||
123 | ||
124 | /* | |
125 | * Range check input... | |
126 | */ | |
127 | ||
128 | if (fd < 0) | |
129 | return (NULL); | |
130 | ||
131 | /* | |
132 | * Create the client connection... | |
133 | */ | |
134 | ||
135 | memset(&addrlist, 0, sizeof(addrlist)); | |
136 | ||
db8b865d | 137 | if ((http = http_create(NULL, 0, &addrlist, AF_UNSPEC, |
a469f8a5 MS |
138 | HTTP_ENCRYPTION_IF_REQUESTED, blocking, |
139 | _HTTP_MODE_SERVER)) == NULL) | |
140 | return (NULL); | |
141 | ||
142 | /* | |
143 | * Accept the client and get the remote address... | |
144 | */ | |
145 | ||
146 | addrlen = sizeof(http_addr_t); | |
147 | ||
148 | if ((http->fd = accept(fd, (struct sockaddr *)&(http->addrlist->addr), | |
149 | &addrlen)) < 0) | |
150 | { | |
151 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
152 | httpClose(http); | |
153 | ||
154 | return (NULL); | |
155 | } | |
156 | ||
5ec1fd3d MS |
157 | http->hostaddr = &(http->addrlist->addr); |
158 | ||
159 | if (httpAddrLocalhost(http->hostaddr)) | |
160 | strlcpy(http->hostname, "localhost", sizeof(http->hostname)); | |
161 | else | |
162 | httpAddrString(http->hostaddr, http->hostname, sizeof(http->hostname)); | |
a469f8a5 MS |
163 | |
164 | #ifdef SO_NOSIGPIPE | |
165 | /* | |
166 | * Disable SIGPIPE for this socket. | |
167 | */ | |
168 | ||
169 | val = 1; | |
db8b865d | 170 | setsockopt(http->fd, SOL_SOCKET, SO_NOSIGPIPE, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
171 | #endif /* SO_NOSIGPIPE */ |
172 | ||
173 | /* | |
174 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
175 | * with a slow loopback interface. Since we write large buffers | |
176 | * when sending print files and requests, there shouldn't be any | |
177 | * performance penalty for this... | |
178 | */ | |
179 | ||
180 | val = 1; | |
db8b865d | 181 | setsockopt(http->fd, IPPROTO_TCP, TCP_NODELAY, CUPS_SOCAST &val, sizeof(val)); |
a469f8a5 MS |
182 | |
183 | #ifdef FD_CLOEXEC | |
184 | /* | |
185 | * Close this socket when starting another process... | |
186 | */ | |
187 | ||
188 | fcntl(http->fd, F_SETFD, FD_CLOEXEC); | |
189 | #endif /* FD_CLOEXEC */ | |
190 | ||
191 | return (http); | |
192 | } | |
193 | ||
194 | ||
7cf5915e MS |
195 | /* |
196 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
197 | * | |
198 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
199 | * | |
8072030b | 200 | * @since CUPS 1.5/macOS 10.7@ |
7cf5915e MS |
201 | */ |
202 | ||
203 | int /* O - 0 on success, -1 on error */ | |
204 | httpAddCredential( | |
205 | cups_array_t *credentials, /* I - Credentials array */ | |
206 | const void *data, /* I - PEM-encoded X.509 data */ | |
207 | size_t datalen) /* I - Length of data */ | |
208 | { | |
209 | http_credential_t *credential; /* Credential data */ | |
210 | ||
211 | ||
212 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
213 | { | |
214 | credential->datalen = datalen; | |
215 | ||
216 | if ((credential->data = malloc(datalen)) != NULL) | |
217 | { | |
218 | memcpy(credential->data, data, datalen); | |
219 | cupsArrayAdd(credentials, credential); | |
220 | return (0); | |
221 | } | |
222 | ||
223 | free(credential); | |
224 | } | |
225 | ||
226 | return (-1); | |
227 | } | |
228 | ||
229 | ||
ecdc0628 | 230 | /* |
231 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
232 | */ | |
233 | ||
234 | void | |
e6b1a6a9 | 235 | httpBlocking(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 236 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
237 | { | |
238 | if (http) | |
85dda01c | 239 | { |
ecdc0628 | 240 | http->blocking = b; |
85dda01c MS |
241 | http_set_wait(http); |
242 | } | |
ecdc0628 | 243 | } |
244 | ||
245 | ||
ef416fc2 | 246 | /* |
247 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
248 | */ | |
249 | ||
ecdc0628 | 250 | int /* O - 0 = no data, 1 = data available */ |
e6b1a6a9 | 251 | httpCheck(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 252 | { |
253 | return (httpWait(http, 0)); | |
254 | } | |
255 | ||
256 | ||
257 | /* | |
258 | * 'httpClearCookie()' - Clear the cookie value(s). | |
259 | * | |
8072030b | 260 | * @since CUPS 1.1.19/macOS 10.3@ |
ef416fc2 | 261 | */ |
262 | ||
263 | void | |
e6b1a6a9 | 264 | httpClearCookie(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 265 | { |
266 | if (!http) | |
267 | return; | |
268 | ||
269 | if (http->cookie) | |
270 | { | |
271 | free(http->cookie); | |
272 | http->cookie = NULL; | |
273 | } | |
274 | } | |
275 | ||
276 | ||
ecdc0628 | 277 | /* |
278 | * 'httpClearFields()' - Clear HTTP request fields. | |
279 | */ | |
280 | ||
281 | void | |
e6b1a6a9 | 282 | httpClearFields(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 283 | { |
807315e6 | 284 | DEBUG_printf(("httpClearFields(http=%p)", (void *)http)); |
a469f8a5 | 285 | |
ecdc0628 | 286 | if (http) |
287 | { | |
288 | memset(http->fields, 0, sizeof(http->fields)); | |
a469f8a5 MS |
289 | |
290 | if (http->mode == _HTTP_MODE_CLIENT) | |
291 | { | |
292 | if (http->hostname[0] == '/') | |
293 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
294 | else | |
295 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
296 | } | |
b423cd4c | 297 | |
f7deaa1a | 298 | if (http->field_authorization) |
299 | { | |
300 | free(http->field_authorization); | |
301 | http->field_authorization = NULL; | |
302 | } | |
303 | ||
a469f8a5 MS |
304 | if (http->accept_encoding) |
305 | { | |
306 | _cupsStrFree(http->accept_encoding); | |
307 | http->accept_encoding = NULL; | |
308 | } | |
309 | ||
310 | if (http->allow) | |
311 | { | |
312 | _cupsStrFree(http->allow); | |
313 | http->allow = NULL; | |
314 | } | |
315 | ||
316 | if (http->server) | |
317 | { | |
318 | _cupsStrFree(http->server); | |
319 | http->server = NULL; | |
320 | } | |
321 | ||
7ec11630 MS |
322 | if (http->www_authenticate) |
323 | { | |
324 | free(http->www_authenticate); | |
325 | http->www_authenticate = NULL; | |
326 | } | |
327 | ||
b423cd4c | 328 | http->expect = (http_status_t)0; |
ecdc0628 | 329 | } |
330 | } | |
331 | ||
332 | ||
ef416fc2 | 333 | /* |
6d2f911b | 334 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 335 | */ |
336 | ||
337 | void | |
e6b1a6a9 | 338 | httpClose(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 339 | { |
f7deaa1a | 340 | #ifdef HAVE_GSSAPI |
1f0275e3 | 341 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 342 | #endif /* HAVE_GSSAPI */ |
343 | ||
344 | ||
807315e6 | 345 | DEBUG_printf(("httpClose(http=%p)", (void *)http)); |
ef416fc2 | 346 | |
6d2f911b MS |
347 | /* |
348 | * Range check input... | |
349 | */ | |
350 | ||
ef416fc2 | 351 | if (!http) |
352 | return; | |
353 | ||
6d2f911b MS |
354 | /* |
355 | * Close any open connection... | |
356 | */ | |
357 | ||
358 | _httpDisconnect(http); | |
359 | ||
360 | /* | |
361 | * Free memory used... | |
362 | */ | |
363 | ||
ef416fc2 | 364 | httpAddrFreeList(http->addrlist); |
365 | ||
ef416fc2 | 366 | if (http->cookie) |
367 | free(http->cookie); | |
368 | ||
f7deaa1a | 369 | #ifdef HAVE_GSSAPI |
370 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 371 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 372 | |
373 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 374 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 375 | #endif /* HAVE_GSSAPI */ |
376 | ||
b94498cf | 377 | #ifdef HAVE_AUTHORIZATION_H |
378 | if (http->auth_ref) | |
379 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
380 | #endif /* HAVE_AUTHORIZATION_H */ | |
381 | ||
f7deaa1a | 382 | httpClearFields(http); |
383 | ||
384 | if (http->authstring && http->authstring != http->_authstring) | |
385 | free(http->authstring); | |
386 | ||
ef416fc2 | 387 | free(http); |
388 | } | |
389 | ||
390 | ||
72d05bc9 MS |
391 | /* |
392 | * 'httpCompareCredentials()' - Compare two sets of X.509 credentials. | |
393 | * | |
e1f19878 | 394 | * @since CUPS 2.0/OS 10.10@ |
72d05bc9 MS |
395 | */ |
396 | ||
397 | int /* O - 1 if they match, 0 if they do not */ | |
398 | httpCompareCredentials( | |
399 | cups_array_t *cred1, /* I - First set of X.509 credentials */ | |
400 | cups_array_t *cred2) /* I - Second set of X.509 credentials */ | |
401 | { | |
402 | http_credential_t *temp1, *temp2; /* Temporary credentials */ | |
403 | ||
404 | ||
405 | 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)) | |
406 | if (temp1->datalen != temp2->datalen) | |
407 | return (0); | |
408 | else if (memcmp(temp1->data, temp2->data, temp1->datalen)) | |
409 | return (0); | |
410 | ||
411 | return (temp1 == temp2); | |
412 | } | |
413 | ||
414 | ||
ef416fc2 | 415 | /* |
416 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e | 417 | * |
a469f8a5 | 418 | * This function is deprecated - use @link httpConnect2@ instead. |
1ff0402e | 419 | * |
53af7f21 | 420 | * @deprecated@ @exclude all@ |
ef416fc2 | 421 | */ |
422 | ||
423 | http_t * /* O - New HTTP connection */ | |
424 | httpConnect(const char *host, /* I - Host to connect to */ | |
425 | int port) /* I - Port number */ | |
426 | { | |
2c85b752 MS |
427 | return (httpConnect2(host, port, NULL, AF_UNSPEC, |
428 | HTTP_ENCRYPTION_IF_REQUESTED, 1, 30000, NULL)); | |
1ff0402e MS |
429 | } |
430 | ||
431 | ||
432 | /* | |
a469f8a5 MS |
433 | * 'httpConnect2()' - Connect to a HTTP server. |
434 | * | |
8072030b | 435 | * @since CUPS 1.7/macOS 10.9@ |
1ff0402e MS |
436 | */ |
437 | ||
438 | http_t * /* O - New HTTP connection */ | |
a469f8a5 | 439 | httpConnect2( |
1ff0402e MS |
440 | const char *host, /* I - Host to connect to */ |
441 | int port, /* I - Port number */ | |
98d88c8d | 442 | http_addrlist_t *addrlist, /* I - List of addresses or @code NULL@ to lookup */ |
a469f8a5 MS |
443 | int family, /* I - Address family to use or @code AF_UNSPEC@ for any */ |
444 | http_encryption_t encryption, /* I - Type of encryption to use */ | |
445 | int blocking, /* I - 1 for blocking connection, 0 for non-blocking */ | |
db8b865d | 446 | int msec, /* I - Connection timeout in milliseconds, 0 means don't connect */ |
a469f8a5 | 447 | int *cancel) /* I - Pointer to "cancel" variable */ |
1ff0402e MS |
448 | { |
449 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 450 | |
451 | ||
807315e6 | 452 | 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 | 453 | |
ef416fc2 | 454 | /* |
1ff0402e | 455 | * Create the HTTP structure... |
ef416fc2 | 456 | */ |
457 | ||
db8b865d | 458 | if ((http = http_create(host, port, addrlist, family, encryption, blocking, |
a469f8a5 | 459 | _HTTP_MODE_CLIENT)) == NULL) |
1ff0402e | 460 | return (NULL); |
ef416fc2 | 461 | |
1ff0402e | 462 | /* |
db8b865d | 463 | * Optionally connect to the remote system... |
1ff0402e MS |
464 | */ |
465 | ||
db8b865d | 466 | if (msec == 0 || !httpReconnect2(http, msec, cancel)) |
1ff0402e MS |
467 | return (http); |
468 | ||
469 | /* | |
470 | * Could not connect to any known address - bail out! | |
471 | */ | |
472 | ||
a469f8a5 | 473 | httpClose(http); |
1ff0402e MS |
474 | |
475 | return (NULL); | |
ef416fc2 | 476 | } |
477 | ||
478 | ||
a469f8a5 MS |
479 | /* |
480 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
481 | * | |
482 | * This function is now deprecated. Please use the @link httpConnect2@ function | |
483 | * instead. | |
484 | * | |
53af7f21 | 485 | * @deprecated@ @exclude all@ |
a469f8a5 MS |
486 | */ |
487 | ||
488 | http_t * /* O - New HTTP connection */ | |
489 | httpConnectEncrypt( | |
490 | const char *host, /* I - Host to connect to */ | |
491 | int port, /* I - Port number */ | |
492 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
493 | { | |
494 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", | |
495 | host, port, encryption)); | |
496 | ||
497 | return (httpConnect2(host, port, NULL, AF_UNSPEC, encryption, 1, 30000, | |
498 | NULL)); | |
499 | } | |
500 | ||
501 | ||
ef416fc2 | 502 | /* |
503 | * 'httpDelete()' - Send a DELETE request to the server. | |
504 | */ | |
505 | ||
506 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 507 | httpDelete(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 508 | const char *uri) /* I - URI to delete */ |
509 | { | |
cb7f98ee | 510 | return (http_send(http, HTTP_STATE_DELETE, uri)); |
ef416fc2 | 511 | } |
512 | ||
513 | ||
6d2f911b MS |
514 | /* |
515 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
516 | */ | |
517 | ||
518 | void | |
e6b1a6a9 | 519 | _httpDisconnect(http_t *http) /* I - HTTP connection */ |
6d2f911b MS |
520 | { |
521 | #ifdef HAVE_SSL | |
522 | if (http->tls) | |
25731360 | 523 | _httpTLSStop(http); |
6d2f911b MS |
524 | #endif /* HAVE_SSL */ |
525 | ||
87e98392 | 526 | httpAddrClose(NULL, http->fd); |
6d2f911b MS |
527 | |
528 | http->fd = -1; | |
529 | } | |
530 | ||
531 | ||
ef416fc2 | 532 | /* |
533 | * 'httpEncryption()' - Set the required encryption on the link. | |
534 | */ | |
535 | ||
536 | int /* O - -1 on error, 0 on success */ | |
e6b1a6a9 | 537 | httpEncryption(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 538 | http_encryption_t e) /* I - New encryption preference */ |
539 | { | |
807315e6 | 540 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", (void *)http, e)); |
ef416fc2 | 541 | |
542 | #ifdef HAVE_SSL | |
543 | if (!http) | |
544 | return (0); | |
545 | ||
d3d89474 MS |
546 | if (http->mode == _HTTP_MODE_CLIENT) |
547 | { | |
548 | http->encryption = e; | |
ef416fc2 | 549 | |
d3d89474 MS |
550 | if ((http->encryption == HTTP_ENCRYPTION_ALWAYS && !http->tls) || |
551 | (http->encryption == HTTP_ENCRYPTION_NEVER && http->tls)) | |
552 | return (httpReconnect2(http, 30000, NULL)); | |
553 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) | |
554 | return (http_tls_upgrade(http)); | |
555 | else | |
556 | return (0); | |
557 | } | |
ef416fc2 | 558 | else |
d3d89474 MS |
559 | { |
560 | if (e == HTTP_ENCRYPTION_NEVER && http->tls) | |
561 | return (-1); | |
562 | ||
563 | http->encryption = e; | |
564 | if (e != HTTP_ENCRYPTION_IF_REQUESTED && !http->tls) | |
25731360 | 565 | return (_httpTLSStart(http)); |
d3d89474 MS |
566 | else |
567 | return (0); | |
568 | } | |
ef416fc2 | 569 | #else |
cb7f98ee | 570 | if (e == HTTP_ENCRYPTION_ALWAYS || e == HTTP_ENCRYPTION_REQUIRED) |
ef416fc2 | 571 | return (-1); |
572 | else | |
573 | return (0); | |
574 | #endif /* HAVE_SSL */ | |
575 | } | |
576 | ||
577 | ||
ecdc0628 | 578 | /* |
579 | * 'httpError()' - Get the last error on a connection. | |
580 | */ | |
581 | ||
582 | int /* O - Error code (errno) value */ | |
e6b1a6a9 | 583 | httpError(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 584 | { |
585 | if (http) | |
586 | return (http->error); | |
587 | else | |
588 | return (EINVAL); | |
589 | } | |
590 | ||
591 | ||
48bd1142 MS |
592 | /* |
593 | * 'httpFieldValue()' - Return the HTTP field enumeration value for a field | |
594 | * name. | |
595 | */ | |
596 | ||
597 | http_field_t /* O - Field index */ | |
598 | httpFieldValue(const char *name) /* I - String name */ | |
599 | { | |
600 | int i; /* Looping var */ | |
601 | ||
602 | ||
603 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
604 | if (!_cups_strcasecmp(name, http_fields[i])) | |
605 | return ((http_field_t)i); | |
606 | ||
607 | return (HTTP_FIELD_UNKNOWN); | |
608 | } | |
609 | ||
610 | ||
ef416fc2 | 611 | /* |
98d88c8d | 612 | * 'httpFlush()' - Flush data read from a HTTP connection. |
ef416fc2 | 613 | */ |
614 | ||
615 | void | |
e6b1a6a9 | 616 | httpFlush(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 617 | { |
f8b3a85b MS |
618 | char buffer[8192]; /* Junk buffer */ |
619 | int blocking; /* To block or not to block */ | |
620 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 621 | |
622 | ||
807315e6 | 623 | DEBUG_printf(("httpFlush(http=%p), state=%s", (void *)http, httpStateString(http->state))); |
ef416fc2 | 624 | |
c1420c87 MS |
625 | /* |
626 | * Nothing to do if we are in the "waiting" state... | |
627 | */ | |
628 | ||
629 | if (http->state == HTTP_STATE_WAITING) | |
630 | return; | |
631 | ||
fa73b229 | 632 | /* |
633 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
634 | */ | |
635 | ||
636 | blocking = http->blocking; | |
637 | http->blocking = 0; | |
638 | ||
639 | /* | |
640 | * Read any data we can... | |
641 | */ | |
642 | ||
f8b3a85b | 643 | oldstate = http->state; |
a4d04587 | 644 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 645 | |
646 | /* | |
647 | * Restore blocking and reset the connection if we didn't get all of | |
648 | * the remaining data... | |
649 | */ | |
650 | ||
651 | http->blocking = blocking; | |
652 | ||
a469f8a5 MS |
653 | if (http->state == oldstate && http->state != HTTP_STATE_WAITING && |
654 | http->fd >= 0) | |
fa73b229 | 655 | { |
656 | /* | |
657 | * Didn't get the data back, so close the current connection. | |
658 | */ | |
659 | ||
c41769ff MS |
660 | #ifdef HAVE_LIBZ |
661 | if (http->coding) | |
662 | http_content_coding_finish(http); | |
663 | #endif /* HAVE_LIBZ */ | |
664 | ||
a469f8a5 MS |
665 | DEBUG_puts("1httpFlush: Setting state to HTTP_STATE_WAITING and closing."); |
666 | ||
667 | http->state = HTTP_STATE_WAITING; | |
fa73b229 | 668 | |
669 | #ifdef HAVE_SSL | |
670 | if (http->tls) | |
25731360 | 671 | _httpTLSStop(http); |
fa73b229 | 672 | #endif /* HAVE_SSL */ |
673 | ||
87e98392 | 674 | httpAddrClose(NULL, http->fd); |
fa73b229 | 675 | |
676 | http->fd = -1; | |
677 | } | |
ef416fc2 | 678 | } |
679 | ||
680 | ||
681 | /* | |
98d88c8d | 682 | * 'httpFlushWrite()' - Flush data written to a HTTP connection. |
ef416fc2 | 683 | * |
8072030b | 684 | * @since CUPS 1.2/macOS 10.5@ |
ef416fc2 | 685 | */ |
686 | ||
687 | int /* O - Bytes written or -1 on error */ | |
e6b1a6a9 | 688 | httpFlushWrite(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 689 | { |
7e86f2f6 | 690 | ssize_t bytes; /* Bytes written */ |
ef416fc2 | 691 | |
692 | ||
807315e6 | 693 | DEBUG_printf(("httpFlushWrite(http=%p) data_encoding=%d", (void *)http, http ? http->data_encoding : 100)); |
ef416fc2 | 694 | |
695 | if (!http || !http->wused) | |
f8b3a85b MS |
696 | { |
697 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
698 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 699 | return (0); |
f8b3a85b | 700 | } |
ef416fc2 | 701 | |
a469f8a5 | 702 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
7e86f2f6 | 703 | bytes = http_write_chunk(http, http->wbuffer, (size_t)http->wused); |
ef416fc2 | 704 | else |
7e86f2f6 | 705 | bytes = http_write(http, http->wbuffer, (size_t)http->wused); |
ef416fc2 | 706 | |
707 | http->wused = 0; | |
708 | ||
7e86f2f6 | 709 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", (int)bytes, errno)); |
f8b3a85b | 710 | |
7e86f2f6 | 711 | return ((int)bytes); |
ef416fc2 | 712 | } |
713 | ||
714 | ||
7cf5915e MS |
715 | /* |
716 | * 'httpFreeCredentials()' - Free an array of credentials. | |
717 | */ | |
718 | ||
719 | void | |
720 | httpFreeCredentials( | |
721 | cups_array_t *credentials) /* I - Array of credentials */ | |
722 | { | |
723 | http_credential_t *credential; /* Credential */ | |
724 | ||
725 | ||
726 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
727 | credential; | |
728 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
729 | { | |
730 | cupsArrayRemove(credentials, credential); | |
731 | free((void *)credential->data); | |
732 | free(credential); | |
733 | } | |
734 | ||
735 | cupsArrayDelete(credentials); | |
736 | } | |
737 | ||
738 | ||
ef416fc2 | 739 | /* |
740 | * 'httpGet()' - Send a GET request to the server. | |
741 | */ | |
742 | ||
743 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 744 | httpGet(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 745 | const char *uri) /* I - URI to get */ |
746 | { | |
cb7f98ee | 747 | return (http_send(http, HTTP_STATE_GET, uri)); |
ef416fc2 | 748 | } |
749 | ||
750 | ||
e6b1a6a9 MS |
751 | /* |
752 | * 'httpGetActivity()' - Get the most recent activity for a connection. | |
753 | * | |
98d88c8d | 754 | * The return value is the time in seconds of the last read or write. |
e6b1a6a9 | 755 | * |
e1f19878 | 756 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
757 | */ |
758 | ||
759 | time_t /* O - Time of last read or write */ | |
760 | httpGetActivity(http_t *http) /* I - HTTP connection */ | |
761 | { | |
762 | return (http ? http->activity : 0); | |
763 | } | |
764 | ||
765 | ||
6961465f MS |
766 | /* |
767 | * 'httpGetAuthString()' - Get the current authorization string. | |
768 | * | |
98d88c8d MS |
769 | * The authorization string is set by @link cupsDoAuthentication@ and |
770 | * @link httpSetAuthString@. Use @link httpGetAuthString@ to retrieve the | |
771 | * string to use with @link httpSetField@ for the | |
772 | * @code HTTP_FIELD_AUTHORIZATION@ value. | |
6961465f | 773 | * |
8072030b | 774 | * @since CUPS 1.3/macOS 10.5@ |
6961465f MS |
775 | */ |
776 | ||
777 | char * /* O - Authorization string */ | |
e6b1a6a9 | 778 | httpGetAuthString(http_t *http) /* I - HTTP connection */ |
6961465f MS |
779 | { |
780 | if (http) | |
781 | return (http->authstring); | |
782 | else | |
783 | return (NULL); | |
784 | } | |
785 | ||
786 | ||
787 | /* | |
788 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
789 | * | |
8072030b | 790 | * @since CUPS 1.2/macOS 10.5@ |
6961465f MS |
791 | */ |
792 | ||
793 | int /* O - 1 if blocking, 0 if non-blocking */ | |
e6b1a6a9 | 794 | httpGetBlocking(http_t *http) /* I - HTTP connection */ |
6961465f MS |
795 | { |
796 | return (http ? http->blocking : 0); | |
797 | } | |
798 | ||
799 | ||
a469f8a5 MS |
800 | /* |
801 | * 'httpGetContentEncoding()' - Get a common content encoding, if any, between | |
802 | * the client and server. | |
803 | * | |
804 | * This function uses the value of the Accepts-Encoding HTTP header and must be | |
805 | * called after receiving a response from the server or a request from the | |
806 | * client. The value returned can be use in subsequent requests (for clients) | |
807 | * or in the response (for servers) in order to compress the content stream. | |
808 | * | |
8072030b | 809 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
810 | */ |
811 | ||
812 | const char * /* O - Content-Coding value or | |
813 | @code NULL@ for the identity | |
814 | coding. */ | |
2c85b752 | 815 | httpGetContentEncoding(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
816 | { |
817 | #ifdef HAVE_LIBZ | |
818 | if (http && http->accept_encoding) | |
819 | { | |
820 | int i; /* Looping var */ | |
821 | char temp[HTTP_MAX_VALUE], /* Copy of Accepts-Encoding value */ | |
822 | *start, /* Start of coding value */ | |
823 | *end; /* End of coding value */ | |
824 | double qvalue; /* "qvalue" for coding */ | |
825 | struct lconv *loc = localeconv(); /* Locale data */ | |
826 | static const char * const codings[] = | |
827 | { /* Supported content codings */ | |
828 | "deflate", | |
829 | "gzip", | |
830 | "x-deflate", | |
831 | "x-gzip" | |
832 | }; | |
833 | ||
834 | strlcpy(temp, http->accept_encoding, sizeof(temp)); | |
835 | ||
836 | for (start = temp; *start; start = end) | |
837 | { | |
838 | /* | |
839 | * Find the end of the coding name... | |
840 | */ | |
841 | ||
842 | qvalue = 1.0; | |
843 | end = start; | |
844 | while (*end && *end != ';' && *end != ',' && !isspace(*end & 255)) | |
845 | end ++; | |
846 | ||
847 | if (*end == ';') | |
848 | { | |
849 | /* | |
850 | * Grab the qvalue as needed... | |
851 | */ | |
852 | ||
853 | if (!strncmp(end, ";q=", 3)) | |
854 | qvalue = _cupsStrScand(end + 3, NULL, loc); | |
855 | ||
856 | /* | |
857 | * Skip past all attributes... | |
858 | */ | |
859 | ||
860 | *end++ = '\0'; | |
861 | while (*end && *end != ',' && !isspace(*end & 255)) | |
862 | end ++; | |
863 | } | |
864 | else if (*end) | |
865 | *end++ = '\0'; | |
866 | ||
867 | while (*end && isspace(*end & 255)) | |
868 | end ++; | |
869 | ||
870 | /* | |
871 | * Check value if it matches something we support... | |
872 | */ | |
873 | ||
874 | if (qvalue <= 0.0) | |
875 | continue; | |
876 | ||
877 | for (i = 0; i < (int)(sizeof(codings) / sizeof(codings[0])); i ++) | |
878 | if (!strcmp(start, codings[i])) | |
879 | return (codings[i]); | |
880 | } | |
881 | } | |
882 | #endif /* HAVE_LIBZ */ | |
883 | ||
884 | return (NULL); | |
885 | } | |
886 | ||
887 | ||
ecdc0628 | 888 | /* |
889 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 890 | * |
8072030b | 891 | * @since CUPS 1.1.19/macOS 10.3@ |
ecdc0628 | 892 | */ |
893 | ||
98d88c8d | 894 | const char * /* O - Cookie data or @code NULL@ */ |
dd3fdd2c | 895 | httpGetCookie(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 896 | { |
897 | return (http ? http->cookie : NULL); | |
898 | } | |
899 | ||
900 | ||
5ec1fd3d MS |
901 | /* |
902 | * 'httpGetEncryption()' - Get the current encryption mode of a connection. | |
903 | * | |
904 | * This function returns the encryption mode for the connection. Use the | |
905 | * @link httpIsEncrypted@ function to determine whether a TLS session has | |
906 | * been established. | |
907 | * | |
e1f19878 | 908 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
909 | */ |
910 | ||
911 | http_encryption_t /* O - Current encryption mode */ | |
912 | httpGetEncryption(http_t *http) /* I - HTTP connection */ | |
913 | { | |
914 | return (http ? http->encryption : HTTP_ENCRYPTION_IF_REQUESTED); | |
915 | } | |
916 | ||
917 | ||
a469f8a5 MS |
918 | /* |
919 | * 'httpGetExpect()' - Get the value of the Expect header, if any. | |
920 | * | |
921 | * Returns @code HTTP_STATUS_NONE@ if there is no Expect header, otherwise | |
922 | * returns the expected HTTP status code, typically @code HTTP_STATUS_CONTINUE@. | |
923 | * | |
8072030b | 924 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
925 | */ |
926 | ||
927 | http_status_t /* O - Expect: status, if any */ | |
2c85b752 | 928 | httpGetExpect(http_t *http) /* I - HTTP connection */ |
a469f8a5 MS |
929 | { |
930 | if (!http) | |
931 | return (HTTP_STATUS_ERROR); | |
932 | else | |
933 | return (http->expect); | |
934 | } | |
935 | ||
936 | ||
ecdc0628 | 937 | /* |
938 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
939 | * | |
8072030b | 940 | * @since CUPS 1.2/macOS 10.5@ |
ecdc0628 | 941 | */ |
942 | ||
943 | int /* O - File descriptor or -1 if none */ | |
e6b1a6a9 | 944 | httpGetFd(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 945 | { |
946 | return (http ? http->fd : -1); | |
947 | } | |
948 | ||
949 | ||
950 | /* | |
951 | * 'httpGetField()' - Get a field value from a request/response. | |
952 | */ | |
953 | ||
954 | const char * /* O - Field value */ | |
e6b1a6a9 | 955 | httpGetField(http_t *http, /* I - HTTP connection */ |
ecdc0628 | 956 | http_field_t field) /* I - Field to get */ |
957 | { | |
958 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
959 | return (NULL); | |
a469f8a5 MS |
960 | |
961 | switch (field) | |
f7deaa1a | 962 | { |
a469f8a5 MS |
963 | case HTTP_FIELD_ACCEPT_ENCODING : |
964 | return (http->accept_encoding); | |
f7deaa1a | 965 | |
a469f8a5 MS |
966 | case HTTP_FIELD_ALLOW : |
967 | return (http->allow); | |
968 | ||
969 | case HTTP_FIELD_SERVER : | |
970 | return (http->server); | |
971 | ||
972 | case HTTP_FIELD_AUTHORIZATION : | |
973 | if (http->field_authorization) | |
974 | { | |
975 | /* | |
7ec11630 | 976 | * Special case for Authorization: as its contents can be |
a469f8a5 MS |
977 | * longer than HTTP_MAX_VALUE... |
978 | */ | |
979 | ||
980 | return (http->field_authorization); | |
981 | } | |
7ec11630 MS |
982 | else |
983 | return (http->fields[field]); | |
984 | ||
985 | case HTTP_FIELD_WWW_AUTHENTICATE : | |
986 | if (http->www_authenticate) | |
987 | { | |
988 | /* | |
989 | * Special case for WWW-Authenticate: as its contents can be | |
990 | * longer than HTTP_MAX_VALUE... | |
991 | */ | |
992 | ||
993 | return (http->www_authenticate); | |
994 | } | |
995 | else | |
996 | return (http->fields[field]); | |
a469f8a5 MS |
997 | |
998 | default : | |
999 | return (http->fields[field]); | |
f7deaa1a | 1000 | } |
ecdc0628 | 1001 | } |
1002 | ||
1003 | ||
e6b1a6a9 MS |
1004 | /* |
1005 | * 'httpGetKeepAlive()' - Get the current Keep-Alive state of the connection. | |
1006 | * | |
e1f19878 | 1007 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
1008 | */ |
1009 | ||
1010 | http_keepalive_t /* O - Keep-Alive state */ | |
1011 | httpGetKeepAlive(http_t *http) /* I - HTTP connection */ | |
1012 | { | |
1013 | return (http ? http->keep_alive : HTTP_KEEPALIVE_OFF); | |
1014 | } | |
1015 | ||
1016 | ||
ecdc0628 | 1017 | /* |
1018 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1019 | * content-length or transfer-encoding fields. | |
1020 | * | |
1021 | * This function is deprecated and will not return lengths larger than | |
1022 | * 2^31 - 1; use httpGetLength2() instead. | |
1023 | * | |
53af7f21 | 1024 | * @deprecated@ @exclude all@ |
ecdc0628 | 1025 | */ |
1026 | ||
1027 | int /* O - Content length */ | |
e6b1a6a9 | 1028 | httpGetLength(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1029 | { |
1030 | /* | |
1031 | * Get the read content length and return the 32-bit value. | |
1032 | */ | |
1033 | ||
1034 | if (http) | |
1035 | { | |
1036 | httpGetLength2(http); | |
1037 | ||
1038 | return (http->_data_remaining); | |
1039 | } | |
1040 | else | |
1041 | return (-1); | |
1042 | } | |
1043 | ||
1044 | ||
1045 | /* | |
1046 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1047 | * content-length or transfer-encoding fields. | |
1048 | * | |
1049 | * This function returns the complete content length, even for | |
1050 | * content larger than 2^31 - 1. | |
1051 | * | |
8072030b | 1052 | * @since CUPS 1.2/macOS 10.5@ |
ecdc0628 | 1053 | */ |
1054 | ||
1055 | off_t /* O - Content length */ | |
e6b1a6a9 | 1056 | httpGetLength2(http_t *http) /* I - HTTP connection */ |
ecdc0628 | 1057 | { |
a469f8a5 MS |
1058 | off_t remaining; /* Remaining length */ |
1059 | ||
1060 | ||
807315e6 | 1061 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", (void *)http, httpStateString(http->state))); |
ecdc0628 | 1062 | |
1063 | if (!http) | |
1064 | return (-1); | |
1065 | ||
88f9aafc | 1066 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1067 | { |
e07d4801 | 1068 | DEBUG_puts("4httpGetLength2: chunked request!"); |
a469f8a5 | 1069 | remaining = 0; |
ecdc0628 | 1070 | } |
1071 | else | |
1072 | { | |
ecdc0628 | 1073 | /* |
1074 | * The following is a hack for HTTP servers that don't send a | |
a469f8a5 | 1075 | * Content-Length or Transfer-Encoding field... |
ecdc0628 | 1076 | * |
a469f8a5 | 1077 | * If there is no Content-Length then the connection must close |
ecdc0628 | 1078 | * after the transfer is complete... |
1079 | */ | |
1080 | ||
b86bc4cf | 1081 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1082 | { | |
1083 | /* | |
a469f8a5 MS |
1084 | * Default content length is 0 for errors and certain types of operations, |
1085 | * and 2^31-1 for other successful requests... | |
b86bc4cf | 1086 | */ |
1087 | ||
cb7f98ee | 1088 | if (http->status >= HTTP_STATUS_MULTIPLE_CHOICES || |
a469f8a5 MS |
1089 | http->state == HTTP_STATE_OPTIONS || |
1090 | (http->state == HTTP_STATE_GET && http->mode == _HTTP_MODE_SERVER) || | |
1091 | http->state == HTTP_STATE_HEAD || | |
1092 | (http->state == HTTP_STATE_PUT && http->mode == _HTTP_MODE_CLIENT) || | |
1093 | http->state == HTTP_STATE_DELETE || | |
1094 | http->state == HTTP_STATE_TRACE || | |
1095 | http->state == HTTP_STATE_CONNECT) | |
1096 | remaining = 0; | |
b86bc4cf | 1097 | else |
a469f8a5 | 1098 | remaining = 2147483647; |
b86bc4cf | 1099 | } |
a469f8a5 MS |
1100 | else if ((remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], |
1101 | NULL, 10)) < 0) | |
1102 | remaining = -1; | |
ecdc0628 | 1103 | |
e07d4801 | 1104 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
a469f8a5 | 1105 | CUPS_LLCAST remaining)); |
ecdc0628 | 1106 | } |
1107 | ||
a469f8a5 | 1108 | return (remaining); |
ecdc0628 | 1109 | } |
1110 | ||
1111 | ||
d21dc0ed MS |
1112 | /* |
1113 | * 'httpGetPending()' - Get the number of bytes that are buffered for writing. | |
1114 | * | |
e1f19878 | 1115 | * @since CUPS 2.0/OS 10.10@ |
d21dc0ed MS |
1116 | */ |
1117 | ||
1118 | size_t /* O - Number of bytes buffered */ | |
1119 | httpGetPending(http_t *http) /* I - HTTP connection */ | |
1120 | { | |
7e86f2f6 | 1121 | return (http ? (size_t)http->wused : 0); |
d21dc0ed MS |
1122 | } |
1123 | ||
1124 | ||
e6b1a6a9 MS |
1125 | /* |
1126 | * 'httpGetReady()' - Get the number of bytes that can be read without blocking. | |
1127 | * | |
e1f19878 | 1128 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
1129 | */ |
1130 | ||
1131 | size_t /* O - Number of bytes available */ | |
1132 | httpGetReady(http_t *http) /* I - HTTP connection */ | |
1133 | { | |
1134 | if (!http) | |
1135 | return (0); | |
1136 | else if (http->used > 0) | |
7e86f2f6 | 1137 | return ((size_t)http->used); |
e6b1a6a9 MS |
1138 | #ifdef HAVE_SSL |
1139 | else if (http->tls) | |
25731360 | 1140 | return (_httpTLSPending(http)); |
e6b1a6a9 MS |
1141 | #endif /* HAVE_SSL */ |
1142 | ||
1143 | return (0); | |
1144 | } | |
1145 | ||
1146 | ||
5ec1fd3d MS |
1147 | /* |
1148 | * 'httpGetRemaining()' - Get the number of remaining bytes in the message | |
1149 | * body or current chunk. | |
1150 | * | |
1151 | * The @link httpIsChunked@ function can be used to determine whether the | |
1152 | * message body is chunked or fixed-length. | |
1153 | * | |
e1f19878 | 1154 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
1155 | */ |
1156 | ||
1157 | size_t /* O - Remaining bytes */ | |
1158 | httpGetRemaining(http_t *http) /* I - HTTP connection */ | |
1159 | { | |
7e86f2f6 | 1160 | return (http ? (size_t)http->data_remaining : 0); |
5ec1fd3d MS |
1161 | } |
1162 | ||
1163 | ||
ef416fc2 | 1164 | /* |
1165 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1166 | */ | |
1167 | ||
98d88c8d | 1168 | char * /* O - Line or @code NULL@ */ |
ef416fc2 | 1169 | httpGets(char *line, /* I - Line to read into */ |
1170 | int length, /* I - Max length of buffer */ | |
e6b1a6a9 | 1171 | http_t *http) /* I - HTTP connection */ |
ef416fc2 | 1172 | { |
7e86f2f6 MS |
1173 | char *lineptr, /* Pointer into line */ |
1174 | *lineend, /* End of line */ | |
1175 | *bufptr, /* Pointer into input buffer */ | |
1176 | *bufend; /* Pointer to end of buffer */ | |
1177 | ssize_t bytes; /* Number of bytes read */ | |
1178 | int eol; /* End-of-line? */ | |
ef416fc2 | 1179 | |
1180 | ||
807315e6 | 1181 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", (void *)line, length, (void *)http)); |
ef416fc2 | 1182 | |
0fa6c7fa | 1183 | if (!http || !line || length <= 1) |
ef416fc2 | 1184 | return (NULL); |
1185 | ||
1186 | /* | |
1187 | * Read a line from the buffer... | |
1188 | */ | |
f11a948a MS |
1189 | |
1190 | http->error = 0; | |
1191 | lineptr = line; | |
1192 | lineend = line + length - 1; | |
1193 | eol = 0; | |
ef416fc2 | 1194 | |
1195 | while (lineptr < lineend) | |
1196 | { | |
1197 | /* | |
1198 | * Pre-load the buffer as needed... | |
1199 | */ | |
1200 | ||
1201 | #ifdef WIN32 | |
1202 | WSASetLastError(0); | |
1203 | #else | |
1204 | errno = 0; | |
1205 | #endif /* WIN32 */ | |
1206 | ||
1207 | while (http->used == 0) | |
1208 | { | |
1209 | /* | |
1210 | * No newline; see if there is more data to be read... | |
1211 | */ | |
1212 | ||
85dda01c | 1213 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1214 | { |
f228370c MS |
1215 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1216 | continue; | |
1217 | ||
e07d4801 | 1218 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1219 | #ifdef WIN32 |
1220 | http->error = WSAETIMEDOUT; | |
1221 | #else | |
89d46774 | 1222 | http->error = ETIMEDOUT; |
b86bc4cf | 1223 | #endif /* WIN32 */ |
ef416fc2 | 1224 | return (NULL); |
89d46774 | 1225 | } |
ef416fc2 | 1226 | |
7e86f2f6 | 1227 | bytes = http_read(http, http->buffer + http->used, (size_t)(HTTP_MAX_BUFFER - http->used)); |
ef416fc2 | 1228 | |
7e86f2f6 | 1229 | DEBUG_printf(("4httpGets: read " CUPS_LLFMT " bytes.", CUPS_LLCAST bytes)); |
12f89d24 | 1230 | |
ef416fc2 | 1231 | if (bytes < 0) |
1232 | { | |
1233 | /* | |
1234 | * Nope, can't get a line this time... | |
1235 | */ | |
1236 | ||
1237 | #ifdef WIN32 | |
cc754834 MS |
1238 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1239 | ||
10d09e33 | 1240 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1241 | continue; |
10d09e33 MS |
1242 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1243 | { | |
1244 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1245 | continue; | |
1246 | ||
1247 | http->error = WSAGetLastError(); | |
1248 | } | |
cc754834 | 1249 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1250 | { |
1251 | http->error = WSAGetLastError(); | |
1252 | continue; | |
1253 | } | |
1254 | ||
ef416fc2 | 1255 | #else |
e07d4801 | 1256 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1257 | |
10d09e33 | 1258 | if (errno == EINTR) |
ef416fc2 | 1259 | continue; |
10d09e33 MS |
1260 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1261 | { | |
1262 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1263 | continue; | |
1264 | else if (!http->timeout_cb && errno == EAGAIN) | |
1265 | continue; | |
1266 | ||
1267 | http->error = errno; | |
1268 | } | |
ef416fc2 | 1269 | else if (errno != http->error) |
1270 | { | |
1271 | http->error = errno; | |
1272 | continue; | |
1273 | } | |
1274 | #endif /* WIN32 */ | |
1275 | ||
1276 | return (NULL); | |
1277 | } | |
1278 | else if (bytes == 0) | |
1279 | { | |
1280 | http->error = EPIPE; | |
1281 | ||
1282 | return (NULL); | |
1283 | } | |
1284 | ||
1285 | /* | |
1286 | * Yup, update the amount used... | |
1287 | */ | |
1288 | ||
7e86f2f6 | 1289 | http->used += (int)bytes; |
ef416fc2 | 1290 | } |
1291 | ||
1292 | /* | |
1293 | * Now copy as much of the current line as possible... | |
1294 | */ | |
1295 | ||
1296 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1297 | lineptr < lineend && bufptr < bufend;) | |
1298 | { | |
1299 | if (*bufptr == 0x0a) | |
1300 | { | |
1301 | eol = 1; | |
1302 | bufptr ++; | |
1303 | break; | |
1304 | } | |
1305 | else if (*bufptr == 0x0d) | |
1306 | bufptr ++; | |
1307 | else | |
1308 | *lineptr++ = *bufptr++; | |
1309 | } | |
1310 | ||
b86bc4cf | 1311 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1312 | if (http->used > 0) |
07623986 | 1313 | memmove(http->buffer, bufptr, (size_t)http->used); |
ef416fc2 | 1314 | |
1315 | if (eol) | |
1316 | { | |
1317 | /* | |
1318 | * End of line... | |
1319 | */ | |
1320 | ||
1321 | http->activity = time(NULL); | |
1322 | ||
1323 | *lineptr = '\0'; | |
ef55b745 | 1324 | |
e07d4801 | 1325 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1326 | |
1327 | return (line); | |
1328 | } | |
1329 | } | |
1330 | ||
e07d4801 | 1331 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1332 | |
1333 | return (NULL); | |
1334 | } | |
1335 | ||
1336 | ||
a2326b5b MS |
1337 | /* |
1338 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1339 | */ | |
1340 | ||
1341 | http_state_t /* O - HTTP state */ | |
e6b1a6a9 | 1342 | httpGetState(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1343 | { |
a469f8a5 | 1344 | return (http ? http->state : HTTP_STATE_ERROR); |
a2326b5b MS |
1345 | } |
1346 | ||
1347 | ||
1348 | /* | |
1349 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1350 | * | |
8072030b | 1351 | * @since CUPS 1.2/macOS 10.5@ |
a2326b5b MS |
1352 | */ |
1353 | ||
1354 | http_status_t /* O - HTTP status */ | |
e6b1a6a9 | 1355 | httpGetStatus(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1356 | { |
cb7f98ee | 1357 | return (http ? http->status : HTTP_STATUS_ERROR); |
a2326b5b MS |
1358 | } |
1359 | ||
1360 | ||
1361 | /* | |
1362 | * 'httpGetSubField()' - Get a sub-field value. | |
1363 | * | |
53af7f21 | 1364 | * @deprecated@ @exclude all@ |
a2326b5b MS |
1365 | */ |
1366 | ||
98d88c8d | 1367 | char * /* O - Value or @code NULL@ */ |
e6b1a6a9 | 1368 | httpGetSubField(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1369 | http_field_t field, /* I - Field index */ |
1370 | const char *name, /* I - Name of sub-field */ | |
1371 | char *value) /* O - Value string */ | |
1372 | { | |
1373 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1374 | } | |
1375 | ||
1376 | ||
1377 | /* | |
1378 | * 'httpGetSubField2()' - Get a sub-field value. | |
1379 | * | |
8072030b | 1380 | * @since CUPS 1.2/macOS 10.5@ |
a2326b5b MS |
1381 | */ |
1382 | ||
98d88c8d | 1383 | char * /* O - Value or @code NULL@ */ |
e6b1a6a9 | 1384 | httpGetSubField2(http_t *http, /* I - HTTP connection */ |
a2326b5b MS |
1385 | http_field_t field, /* I - Field index */ |
1386 | const char *name, /* I - Name of sub-field */ | |
1387 | char *value, /* O - Value string */ | |
1388 | int valuelen) /* I - Size of value buffer */ | |
1389 | { | |
1390 | const char *fptr; /* Pointer into field */ | |
1391 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1392 | *ptr, /* Pointer into string buffer */ | |
1393 | *end; /* End of value buffer */ | |
1394 | ||
807315e6 | 1395 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, valuelen=%d)", (void *)http, field, name, (void *)value, valuelen)); |
a2326b5b MS |
1396 | |
1397 | if (!http || !name || !value || valuelen < 2 || | |
1398 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1399 | return (NULL); | |
1400 | ||
1401 | end = value + valuelen - 1; | |
1402 | ||
1403 | for (fptr = http->fields[field]; *fptr;) | |
1404 | { | |
1405 | /* | |
1406 | * Skip leading whitespace... | |
1407 | */ | |
1408 | ||
1409 | while (_cups_isspace(*fptr)) | |
1410 | fptr ++; | |
1411 | ||
1412 | if (*fptr == ',') | |
1413 | { | |
1414 | fptr ++; | |
1415 | continue; | |
1416 | } | |
1417 | ||
1418 | /* | |
1419 | * Get the sub-field name... | |
1420 | */ | |
1421 | ||
1422 | for (ptr = temp; | |
1423 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1424 | ptr < (temp + sizeof(temp) - 1); | |
1425 | *ptr++ = *fptr++); | |
1426 | ||
1427 | *ptr = '\0'; | |
1428 | ||
1429 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1430 | ||
1431 | /* | |
1432 | * Skip trailing chars up to the '='... | |
1433 | */ | |
1434 | ||
1435 | while (_cups_isspace(*fptr)) | |
1436 | fptr ++; | |
1437 | ||
1438 | if (!*fptr) | |
1439 | break; | |
1440 | ||
1441 | if (*fptr != '=') | |
1442 | continue; | |
1443 | ||
1444 | /* | |
1445 | * Skip = and leading whitespace... | |
1446 | */ | |
1447 | ||
1448 | fptr ++; | |
1449 | ||
1450 | while (_cups_isspace(*fptr)) | |
1451 | fptr ++; | |
1452 | ||
1453 | if (*fptr == '\"') | |
1454 | { | |
1455 | /* | |
1456 | * Read quoted string... | |
1457 | */ | |
1458 | ||
1459 | for (ptr = value, fptr ++; | |
1460 | *fptr && *fptr != '\"' && ptr < end; | |
1461 | *ptr++ = *fptr++); | |
1462 | ||
1463 | *ptr = '\0'; | |
1464 | ||
1465 | while (*fptr && *fptr != '\"') | |
1466 | fptr ++; | |
1467 | ||
1468 | if (*fptr) | |
1469 | fptr ++; | |
1470 | } | |
1471 | else | |
1472 | { | |
1473 | /* | |
1474 | * Read unquoted string... | |
1475 | */ | |
1476 | ||
1477 | for (ptr = value; | |
1478 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1479 | *ptr++ = *fptr++); | |
1480 | ||
1481 | *ptr = '\0'; | |
1482 | ||
1483 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1484 | fptr ++; | |
1485 | } | |
1486 | ||
1487 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1488 | ||
1489 | /* | |
1490 | * See if this is the one... | |
1491 | */ | |
1492 | ||
1493 | if (!strcmp(name, temp)) | |
1494 | { | |
1495 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1496 | return (value); | |
1497 | } | |
1498 | } | |
1499 | ||
1500 | value[0] = '\0'; | |
1501 | ||
1502 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1503 | ||
1504 | return (NULL); | |
1505 | } | |
1506 | ||
1507 | ||
1508 | /* | |
1509 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1510 | */ | |
1511 | ||
1512 | http_version_t /* O - Version number */ | |
e6b1a6a9 | 1513 | httpGetVersion(http_t *http) /* I - HTTP connection */ |
a2326b5b | 1514 | { |
a469f8a5 | 1515 | return (http ? http->version : HTTP_VERSION_1_0); |
a2326b5b MS |
1516 | } |
1517 | ||
1518 | ||
ef416fc2 | 1519 | /* |
1520 | * 'httpHead()' - Send a HEAD request to the server. | |
1521 | */ | |
1522 | ||
1523 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1524 | httpHead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1525 | const char *uri) /* I - URI for head */ |
1526 | { | |
807315e6 | 1527 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", (void *)http, uri)); |
cb7f98ee | 1528 | return (http_send(http, HTTP_STATE_HEAD, uri)); |
ef416fc2 | 1529 | } |
1530 | ||
1531 | ||
1532 | /* | |
1533 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1534 | * default HTTP proxy (if any). | |
1535 | */ | |
1536 | ||
1537 | void | |
1538 | httpInitialize(void) | |
1539 | { | |
6d2f911b MS |
1540 | static int initialized = 0; /* Have we been called before? */ |
1541 | #ifdef WIN32 | |
1542 | WSADATA winsockdata; /* WinSock data */ | |
1543 | #endif /* WIN32 */ | |
ef416fc2 | 1544 | |
ef416fc2 | 1545 | |
6d2f911b MS |
1546 | _cupsGlobalLock(); |
1547 | if (initialized) | |
1548 | { | |
1549 | _cupsGlobalUnlock(); | |
1550 | return; | |
1551 | } | |
1552 | ||
1553 | #ifdef WIN32 | |
c7017ecc | 1554 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1555 | |
fa73b229 | 1556 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1557 | /* |
1558 | * Ignore SIGPIPE signals... | |
1559 | */ | |
1560 | ||
fa73b229 | 1561 | # ifdef HAVE_SIGSET |
1562 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1563 | |
fa73b229 | 1564 | # elif defined(HAVE_SIGACTION) |
1565 | struct sigaction action; /* POSIX sigaction data */ | |
1566 | ||
1567 | ||
ef416fc2 | 1568 | memset(&action, 0, sizeof(action)); |
1569 | action.sa_handler = SIG_IGN; | |
1570 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1571 | |
fa73b229 | 1572 | # else |
ef416fc2 | 1573 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1574 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1575 | #endif /* WIN32 */ |
1576 | ||
2c85b752 | 1577 | # ifdef HAVE_SSL |
25731360 | 1578 | _httpTLSInitialize(); |
2c85b752 | 1579 | # endif /* HAVE_SSL */ |
6d2f911b MS |
1580 | |
1581 | initialized = 1; | |
1582 | _cupsGlobalUnlock(); | |
ef416fc2 | 1583 | } |
1584 | ||
1585 | ||
5ec1fd3d MS |
1586 | /* |
1587 | * 'httpIsChunked()' - Report whether a message body is chunked. | |
1588 | * | |
1589 | * This function returns non-zero if the message body is composed of | |
1590 | * variable-length chunks. | |
1591 | * | |
e1f19878 | 1592 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
1593 | */ |
1594 | ||
1595 | int /* O - 1 if chunked, 0 if not */ | |
1596 | httpIsChunked(http_t *http) /* I - HTTP connection */ | |
1597 | { | |
1598 | return (http ? http->data_encoding == HTTP_ENCODING_CHUNKED : 0); | |
1599 | } | |
1600 | ||
1601 | ||
1602 | /* | |
1603 | * 'httpIsEncrypted()' - Report whether a connection is encrypted. | |
1604 | * | |
1605 | * This function returns non-zero if the connection is currently encrypted. | |
1606 | * | |
e1f19878 | 1607 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
1608 | */ |
1609 | ||
1610 | int /* O - 1 if encrypted, 0 if not */ | |
1611 | httpIsEncrypted(http_t *http) /* I - HTTP connection */ | |
1612 | { | |
1613 | return (http ? http->tls != NULL : 0); | |
1614 | } | |
1615 | ||
1616 | ||
ef416fc2 | 1617 | /* |
1618 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1619 | */ | |
1620 | ||
1621 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1622 | httpOptions(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1623 | const char *uri) /* I - URI for options */ |
1624 | { | |
cb7f98ee | 1625 | return (http_send(http, HTTP_STATE_OPTIONS, uri)); |
ef416fc2 | 1626 | } |
1627 | ||
1628 | ||
6d2f911b | 1629 | /* |
a469f8a5 | 1630 | * 'httpPeek()' - Peek at data from a HTTP connection. |
6d2f911b MS |
1631 | * |
1632 | * This function copies available data from the given HTTP connection, reading | |
1633 | * a buffer as needed. The data is still available for reading using | |
98d88c8d | 1634 | * @link httpRead2@. |
6d2f911b MS |
1635 | * |
1636 | * For non-blocking connections the usual timeouts apply. | |
a469f8a5 | 1637 | * |
8072030b | 1638 | * @since CUPS 1.7/macOS 10.9@ |
6d2f911b MS |
1639 | */ |
1640 | ||
1641 | ssize_t /* O - Number of bytes copied */ | |
e6b1a6a9 | 1642 | httpPeek(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
1643 | char *buffer, /* I - Buffer for data */ |
1644 | size_t length) /* I - Maximum number of bytes */ | |
6d2f911b MS |
1645 | { |
1646 | ssize_t bytes; /* Bytes read */ | |
1647 | char len[32]; /* Length string */ | |
1648 | ||
1649 | ||
807315e6 | 1650 | DEBUG_printf(("httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
6d2f911b MS |
1651 | |
1652 | if (http == NULL || buffer == NULL) | |
1653 | return (-1); | |
1654 | ||
1655 | http->activity = time(NULL); | |
1656 | http->error = 0; | |
1657 | ||
1658 | if (length <= 0) | |
1659 | return (0); | |
1660 | ||
a469f8a5 | 1661 | if (http->data_encoding == HTTP_ENCODING_CHUNKED && |
6d2f911b MS |
1662 | http->data_remaining <= 0) |
1663 | { | |
a469f8a5 | 1664 | DEBUG_puts("2httpPeek: Getting chunk length..."); |
6d2f911b MS |
1665 | |
1666 | if (httpGets(len, sizeof(len), http) == NULL) | |
1667 | { | |
a469f8a5 | 1668 | DEBUG_puts("1httpPeek: Could not get length!"); |
6d2f911b MS |
1669 | return (0); |
1670 | } | |
1671 | ||
db8b865d MS |
1672 | if (!len[0]) |
1673 | { | |
1674 | DEBUG_puts("1httpPeek: Blank chunk length, trying again..."); | |
1675 | if (!httpGets(len, sizeof(len), http)) | |
1676 | { | |
1677 | DEBUG_puts("1httpPeek: Could not get chunk length."); | |
1678 | return (0); | |
1679 | } | |
1680 | } | |
1681 | ||
6d2f911b | 1682 | http->data_remaining = strtoll(len, NULL, 16); |
db8b865d | 1683 | |
6d2f911b MS |
1684 | if (http->data_remaining < 0) |
1685 | { | |
a469f8a5 | 1686 | DEBUG_puts("1httpPeek: Negative chunk length!"); |
6d2f911b MS |
1687 | return (0); |
1688 | } | |
1689 | } | |
1690 | ||
a469f8a5 | 1691 | DEBUG_printf(("2httpPeek: data_remaining=" CUPS_LLFMT, |
6d2f911b MS |
1692 | CUPS_LLCAST http->data_remaining)); |
1693 | ||
0fa6c7fa | 1694 | if (http->data_remaining <= 0 && http->data_encoding != HTTP_ENCODING_FIELDS) |
6d2f911b MS |
1695 | { |
1696 | /* | |
1697 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1698 | * data, go idle... | |
1699 | */ | |
1700 | ||
c41769ff | 1701 | #ifdef HAVE_LIBZ |
d423d83d | 1702 | if (http->coding >= _HTTP_CODING_GUNZIP) |
c41769ff MS |
1703 | http_content_coding_finish(http); |
1704 | #endif /* HAVE_LIBZ */ | |
1705 | ||
0fa6c7fa MS |
1706 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
1707 | httpGets(len, sizeof(len), http); | |
1708 | ||
a469f8a5 | 1709 | if (http->state == HTTP_STATE_POST_RECV) |
6d2f911b MS |
1710 | http->state ++; |
1711 | else | |
cb7f98ee | 1712 | http->state = HTTP_STATE_STATUS; |
a469f8a5 MS |
1713 | |
1714 | DEBUG_printf(("1httpPeek: 0-length chunk, set state to %s.", | |
48bd1142 | 1715 | httpStateString(http->state))); |
6d2f911b MS |
1716 | |
1717 | /* | |
1718 | * Prevent future reads for this request... | |
1719 | */ | |
1720 | ||
a469f8a5 | 1721 | http->data_encoding = HTTP_ENCODING_FIELDS; |
6d2f911b MS |
1722 | |
1723 | return (0); | |
1724 | } | |
0fa6c7fa | 1725 | else if (length > (size_t)http->data_remaining) |
6d2f911b MS |
1726 | length = (size_t)http->data_remaining; |
1727 | ||
0fa6c7fa MS |
1728 | #ifdef HAVE_LIBZ |
1729 | if (http->used == 0 && | |
d423d83d MS |
1730 | (http->coding == _HTTP_CODING_IDENTITY || |
1731 | (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in == 0))) | |
0fa6c7fa | 1732 | #else |
6d2f911b | 1733 | if (http->used == 0) |
0fa6c7fa | 1734 | #endif /* HAVE_LIBZ */ |
6d2f911b MS |
1735 | { |
1736 | /* | |
1737 | * Buffer small reads for better performance... | |
1738 | */ | |
1739 | ||
3e7fe0ca MS |
1740 | ssize_t buflen; /* Length of read for buffer */ |
1741 | ||
f228370c MS |
1742 | if (!http->blocking) |
1743 | { | |
85dda01c | 1744 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1745 | { |
1746 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1747 | continue; | |
1748 | ||
1749 | return (0); | |
1750 | } | |
1751 | } | |
6d2f911b | 1752 | |
7e86f2f6 | 1753 | if ((size_t)http->data_remaining > sizeof(http->buffer)) |
3e7fe0ca | 1754 | buflen = sizeof(http->buffer); |
6d2f911b | 1755 | else |
7e86f2f6 | 1756 | buflen = (ssize_t)http->data_remaining; |
3e7fe0ca | 1757 | |
a469f8a5 | 1758 | DEBUG_printf(("2httpPeek: Reading %d bytes into buffer.", (int)buflen)); |
7e86f2f6 | 1759 | bytes = http_read(http, http->buffer, (size_t)buflen); |
3e7fe0ca | 1760 | |
a469f8a5 | 1761 | DEBUG_printf(("2httpPeek: Read " CUPS_LLFMT " bytes into buffer.", |
3e7fe0ca | 1762 | CUPS_LLCAST bytes)); |
db8b865d MS |
1763 | if (bytes > 0) |
1764 | { | |
3e7fe0ca | 1765 | #ifdef DEBUG |
db8b865d | 1766 | http_debug_hex("httpPeek", http->buffer, (int)bytes); |
3e7fe0ca MS |
1767 | #endif /* DEBUG */ |
1768 | ||
7e86f2f6 | 1769 | http->used = (int)bytes; |
db8b865d | 1770 | } |
6d2f911b MS |
1771 | } |
1772 | ||
c1420c87 | 1773 | #ifdef HAVE_LIBZ |
d423d83d | 1774 | if (http->coding >= _HTTP_CODING_GUNZIP) |
c1420c87 | 1775 | { |
db8b865d | 1776 | # ifdef HAVE_INFLATECOPY |
c1420c87 | 1777 | int zerr; /* Decompressor error */ |
c1420c87 MS |
1778 | z_stream stream; /* Copy of decompressor stream */ |
1779 | ||
0fa6c7fa MS |
1780 | if (http->used > 0 && http->stream.avail_in < HTTP_MAX_BUFFER) |
1781 | { | |
1782 | size_t buflen = buflen = HTTP_MAX_BUFFER - http->stream.avail_in; | |
1783 | /* Number of bytes to copy */ | |
1784 | ||
1785 | if (http->stream.avail_in > 0 && | |
291e4727 MS |
1786 | http->stream.next_in > http->sbuffer) |
1787 | memmove(http->sbuffer, http->stream.next_in, http->stream.avail_in); | |
0fa6c7fa | 1788 | |
291e4727 | 1789 | http->stream.next_in = http->sbuffer; |
0fa6c7fa | 1790 | |
7e86f2f6 MS |
1791 | if (buflen > (size_t)http->data_remaining) |
1792 | buflen = (size_t)http->data_remaining; | |
0fa6c7fa | 1793 | |
7e86f2f6 MS |
1794 | if (buflen > (size_t)http->used) |
1795 | buflen = (size_t)http->used; | |
0fa6c7fa MS |
1796 | |
1797 | DEBUG_printf(("1httpPeek: Copying %d more bytes of data into " | |
1798 | "decompression buffer.", (int)buflen)); | |
1799 | ||
291e4727 | 1800 | memcpy(http->sbuffer + http->stream.avail_in, http->buffer, buflen); |
0fa6c7fa | 1801 | http->stream.avail_in += buflen; |
e7312eb4 MS |
1802 | http->used -= (int)buflen; |
1803 | http->data_remaining -= (off_t)buflen; | |
0fa6c7fa MS |
1804 | |
1805 | if (http->used > 0) | |
07623986 | 1806 | memmove(http->buffer, http->buffer + buflen, (size_t)http->used); |
0fa6c7fa | 1807 | } |
c1420c87 MS |
1808 | |
1809 | DEBUG_printf(("2httpPeek: length=%d, avail_in=%d", (int)length, | |
0fa6c7fa | 1810 | (int)http->stream.avail_in)); |
c1420c87 MS |
1811 | |
1812 | if (inflateCopy(&stream, &(http->stream)) != Z_OK) | |
1813 | { | |
1814 | DEBUG_puts("2httpPeek: Unable to copy decompressor stream."); | |
1815 | http->error = ENOMEM; | |
1816 | return (-1); | |
1817 | } | |
1818 | ||
c1420c87 | 1819 | stream.next_out = (Bytef *)buffer; |
7e86f2f6 | 1820 | stream.avail_out = (uInt)length; |
c1420c87 MS |
1821 | |
1822 | zerr = inflate(&stream, Z_SYNC_FLUSH); | |
1823 | inflateEnd(&stream); | |
1824 | ||
1825 | if (zerr < Z_OK) | |
1826 | { | |
1827 | DEBUG_printf(("2httpPeek: zerr=%d", zerr)); | |
0fa6c7fa | 1828 | #ifdef DEBUG |
291e4727 | 1829 | http_debug_hex("2httpPeek", (char *)http->sbuffer, (int)http->stream.avail_in); |
0fa6c7fa MS |
1830 | #endif /* DEBUG */ |
1831 | ||
c1420c87 MS |
1832 | http->error = EIO; |
1833 | return (-1); | |
1834 | } | |
1835 | ||
7e86f2f6 | 1836 | bytes = (ssize_t)(length - http->stream.avail_out); |
db8b865d MS |
1837 | |
1838 | # else | |
1839 | DEBUG_puts("2httpPeek: No inflateCopy on this platform, httpPeek does not " | |
1840 | "work with compressed streams."); | |
1841 | return (-1); | |
1842 | # endif /* HAVE_INFLATECOPY */ | |
c1420c87 MS |
1843 | } |
1844 | else | |
1845 | #endif /* HAVE_LIBZ */ | |
6d2f911b MS |
1846 | if (http->used > 0) |
1847 | { | |
1848 | if (length > (size_t)http->used) | |
1849 | length = (size_t)http->used; | |
1850 | ||
1851 | bytes = (ssize_t)length; | |
1852 | ||
a469f8a5 | 1853 | DEBUG_printf(("2httpPeek: grabbing %d bytes from input buffer...", |
6d2f911b MS |
1854 | (int)bytes)); |
1855 | ||
1856 | memcpy(buffer, http->buffer, length); | |
1857 | } | |
1858 | else | |
1859 | bytes = 0; | |
1860 | ||
1861 | if (bytes < 0) | |
1862 | { | |
1863 | #ifdef WIN32 | |
cc754834 MS |
1864 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1865 | bytes = 0; | |
1866 | else | |
1867 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1868 | #else |
1869 | if (errno == EINTR || errno == EAGAIN) | |
1870 | bytes = 0; | |
1871 | else | |
1872 | http->error = errno; | |
1873 | #endif /* WIN32 */ | |
1874 | } | |
1875 | else if (bytes == 0) | |
1876 | { | |
1877 | http->error = EPIPE; | |
1878 | return (0); | |
1879 | } | |
1880 | ||
6d2f911b MS |
1881 | return (bytes); |
1882 | } | |
1883 | ||
1884 | ||
ef416fc2 | 1885 | /* |
1886 | * 'httpPost()' - Send a POST request to the server. | |
1887 | */ | |
1888 | ||
1889 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1890 | httpPost(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1891 | const char *uri) /* I - URI for post */ |
1892 | { | |
cb7f98ee | 1893 | return (http_send(http, HTTP_STATE_POST, uri)); |
ef416fc2 | 1894 | } |
1895 | ||
1896 | ||
1897 | /* | |
1898 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1899 | * |
1900 | * @private@ | |
ef416fc2 | 1901 | */ |
1902 | ||
1903 | int /* O - Number of bytes written */ | |
e6b1a6a9 | 1904 | httpPrintf(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1905 | const char *format, /* I - printf-style format string */ |
1906 | ...) /* I - Additional args as needed */ | |
1907 | { | |
7e86f2f6 | 1908 | ssize_t bytes; /* Number of bytes to write */ |
ef416fc2 | 1909 | char buf[16384]; /* Buffer for formatted string */ |
1910 | va_list ap; /* Variable argument pointer */ | |
1911 | ||
1912 | ||
807315e6 | 1913 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", (void *)http, format)); |
ef416fc2 | 1914 | |
1915 | va_start(ap, format); | |
1916 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1917 | va_end(ap); | |
1918 | ||
7e86f2f6 | 1919 | DEBUG_printf(("3httpPrintf: (" CUPS_LLFMT " bytes) %s", CUPS_LLCAST bytes, buf)); |
ef416fc2 | 1920 | |
a469f8a5 | 1921 | if (http->data_encoding == HTTP_ENCODING_FIELDS) |
7e86f2f6 | 1922 | return ((int)httpWrite2(http, buf, (size_t)bytes)); |
d09495fa | 1923 | else |
ef416fc2 | 1924 | { |
d09495fa | 1925 | if (http->wused) |
1926 | { | |
e07d4801 | 1927 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1928 | |
d09495fa | 1929 | if (httpFlushWrite(http) < 0) |
1930 | return (-1); | |
1931 | } | |
ef416fc2 | 1932 | |
7e86f2f6 | 1933 | return ((int)http_write(http, buf, (size_t)bytes)); |
d09495fa | 1934 | } |
ef416fc2 | 1935 | } |
1936 | ||
1937 | ||
1938 | /* | |
1939 | * 'httpPut()' - Send a PUT request to the server. | |
1940 | */ | |
1941 | ||
1942 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 1943 | httpPut(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1944 | const char *uri) /* I - URI to put */ |
1945 | { | |
807315e6 | 1946 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", (void *)http, uri)); |
cb7f98ee | 1947 | return (http_send(http, HTTP_STATE_PUT, uri)); |
ef416fc2 | 1948 | } |
1949 | ||
1950 | ||
1951 | /* | |
1952 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1953 | * |
1954 | * This function is deprecated. Use the httpRead2() function which can | |
1955 | * read more than 2GB of data. | |
1956 | * | |
53af7f21 | 1957 | * @deprecated@ @exclude all@ |
ef416fc2 | 1958 | */ |
1959 | ||
1960 | int /* O - Number of bytes read */ | |
e6b1a6a9 | 1961 | httpRead(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 1962 | char *buffer, /* I - Buffer for data */ |
1963 | int length) /* I - Maximum number of bytes */ | |
1964 | { | |
7e86f2f6 | 1965 | return ((int)httpRead2(http, buffer, (size_t)length)); |
a4d04587 | 1966 | } |
1967 | ||
1968 | ||
1969 | /* | |
1970 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1971 | * |
8072030b | 1972 | * @since CUPS 1.2/macOS 10.5@ |
a4d04587 | 1973 | */ |
1974 | ||
1975 | ssize_t /* O - Number of bytes read */ | |
e6b1a6a9 | 1976 | httpRead2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 1977 | char *buffer, /* I - Buffer for data */ |
1978 | size_t length) /* I - Maximum number of bytes */ | |
1979 | { | |
1980 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1981 | |
1982 | ||
db8b865d | 1983 | #ifdef HAVE_LIBZ |
807315e6 | 1984 | 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 | 1985 | #else |
807315e6 | 1986 | 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 | 1987 | #endif /* HAVE_LIBZ */ |
ef416fc2 | 1988 | |
1989 | if (http == NULL || buffer == NULL) | |
1990 | return (-1); | |
1991 | ||
1992 | http->activity = time(NULL); | |
f11a948a | 1993 | http->error = 0; |
ef416fc2 | 1994 | |
1995 | if (length <= 0) | |
1996 | return (0); | |
1997 | ||
a469f8a5 | 1998 | #ifdef HAVE_LIBZ |
d423d83d | 1999 | if (http->coding >= _HTTP_CODING_GUNZIP) |
ef416fc2 | 2000 | { |
0fa6c7fa | 2001 | do |
f228370c | 2002 | { |
0fa6c7fa | 2003 | if (http->stream.avail_in > 0) |
f228370c | 2004 | { |
0fa6c7fa | 2005 | int zerr; /* Decompressor error */ |
f228370c | 2006 | |
0fa6c7fa MS |
2007 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d", |
2008 | (int)http->stream.avail_in, (int)length)); | |
ef416fc2 | 2009 | |
0fa6c7fa | 2010 | http->stream.next_out = (Bytef *)buffer; |
7e86f2f6 | 2011 | http->stream.avail_out = (uInt)length; |
83e08001 | 2012 | |
0fa6c7fa | 2013 | if ((zerr = inflate(&(http->stream), Z_SYNC_FLUSH)) < Z_OK) |
83e08001 | 2014 | { |
0fa6c7fa | 2015 | DEBUG_printf(("2httpRead2: zerr=%d", zerr)); |
12f89d24 | 2016 | #ifdef DEBUG |
291e4727 | 2017 | http_debug_hex("2httpRead2", (char *)http->sbuffer, (int)http->stream.avail_in); |
12f89d24 | 2018 | #endif /* DEBUG */ |
83e08001 | 2019 | |
0fa6c7fa MS |
2020 | http->error = EIO; |
2021 | return (-1); | |
2022 | } | |
a469f8a5 | 2023 | |
7e86f2f6 | 2024 | bytes = (ssize_t)(length - http->stream.avail_out); |
a469f8a5 | 2025 | |
0fa6c7fa MS |
2026 | DEBUG_printf(("2httpRead2: avail_in=%d, avail_out=%d, bytes=%d", |
2027 | http->stream.avail_in, http->stream.avail_out, | |
2028 | (int)bytes)); | |
2029 | } | |
2030 | else | |
2031 | bytes = 0; | |
a469f8a5 | 2032 | |
0fa6c7fa MS |
2033 | if (bytes == 0) |
2034 | { | |
7e86f2f6 | 2035 | ssize_t buflen = HTTP_MAX_BUFFER - (ssize_t)http->stream.avail_in; |
0fa6c7fa | 2036 | /* Additional bytes for buffer */ |
a469f8a5 | 2037 | |
0fa6c7fa MS |
2038 | if (buflen > 0) |
2039 | { | |
2040 | if (http->stream.avail_in > 0 && | |
291e4727 MS |
2041 | http->stream.next_in > http->sbuffer) |
2042 | memmove(http->sbuffer, http->stream.next_in, http->stream.avail_in); | |
0fa6c7fa | 2043 | |
291e4727 | 2044 | http->stream.next_in = http->sbuffer; |
0fa6c7fa MS |
2045 | |
2046 | DEBUG_printf(("1httpRead2: Reading up to %d more bytes of data into " | |
2047 | "decompression buffer.", (int)buflen)); | |
2048 | ||
2049 | if (http->data_remaining > 0) | |
2050 | { | |
2051 | if (buflen > http->data_remaining) | |
7e86f2f6 | 2052 | buflen = (ssize_t)http->data_remaining; |
0fa6c7fa | 2053 | |
291e4727 | 2054 | bytes = http_read_buffered(http, (char *)http->sbuffer + http->stream.avail_in, (size_t)buflen); |
0fa6c7fa MS |
2055 | } |
2056 | else if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
291e4727 | 2057 | bytes = http_read_chunk(http, (char *)http->sbuffer + http->stream.avail_in, (size_t)buflen); |
0fa6c7fa MS |
2058 | else |
2059 | bytes = 0; | |
2060 | ||
2061 | if (bytes < 0) | |
2062 | return (bytes); | |
2063 | else if (bytes == 0) | |
2064 | break; | |
2065 | ||
db8b865d MS |
2066 | DEBUG_printf(("1httpRead2: Adding " CUPS_LLFMT " bytes to " |
2067 | "decompression buffer.", CUPS_LLCAST bytes)); | |
2068 | ||
0fa6c7fa | 2069 | http->data_remaining -= bytes; |
7e86f2f6 | 2070 | http->stream.avail_in += (uInt)bytes; |
db8b865d | 2071 | |
cb7f98ee MS |
2072 | if (http->data_remaining <= 0 && |
2073 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2074 | { | |
2075 | /* | |
2076 | * Read the trailing blank line now... | |
2077 | */ | |
2078 | ||
2079 | char len[32]; /* Length string */ | |
2080 | ||
2081 | httpGets(len, sizeof(len), http); | |
2082 | } | |
2083 | ||
db8b865d | 2084 | bytes = 0; |
0fa6c7fa MS |
2085 | } |
2086 | else | |
2087 | return (0); | |
2088 | } | |
a469f8a5 | 2089 | } |
0fa6c7fa | 2090 | while (bytes == 0); |
a469f8a5 MS |
2091 | } |
2092 | else | |
2093 | #endif /* HAVE_LIBZ */ | |
0fa6c7fa | 2094 | if (http->data_remaining == 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 2095 | { |
0fa6c7fa | 2096 | if ((bytes = http_read_chunk(http, buffer, length)) > 0) |
cb7f98ee | 2097 | { |
0fa6c7fa | 2098 | http->data_remaining -= bytes; |
cb7f98ee MS |
2099 | |
2100 | if (http->data_remaining <= 0) | |
2101 | { | |
2102 | /* | |
2103 | * Read the trailing blank line now... | |
2104 | */ | |
2105 | ||
2106 | char len[32]; /* Length string */ | |
2107 | ||
2108 | httpGets(len, sizeof(len), http); | |
2109 | } | |
2110 | } | |
ef416fc2 | 2111 | } |
0fa6c7fa | 2112 | else if (http->data_remaining <= 0) |
ef416fc2 | 2113 | { |
0fa6c7fa MS |
2114 | /* |
2115 | * No more data to read... | |
2116 | */ | |
ef416fc2 | 2117 | |
0fa6c7fa | 2118 | return (0); |
ef416fc2 | 2119 | } |
ef416fc2 | 2120 | else |
2121 | { | |
0fa6c7fa MS |
2122 | DEBUG_printf(("1httpRead2: Reading up to %d bytes into buffer.", |
2123 | (int)length)); | |
ef416fc2 | 2124 | |
db8b865d MS |
2125 | if (length > (size_t)http->data_remaining) |
2126 | length = (size_t)http->data_remaining; | |
ef416fc2 | 2127 | |
0fa6c7fa | 2128 | if ((bytes = http_read_buffered(http, buffer, length)) > 0) |
cb7f98ee | 2129 | { |
0fa6c7fa | 2130 | http->data_remaining -= bytes; |
cb7f98ee MS |
2131 | |
2132 | if (http->data_remaining <= 0 && | |
2133 | http->data_encoding == HTTP_ENCODING_CHUNKED) | |
2134 | { | |
2135 | /* | |
2136 | * Read the trailing blank line now... | |
2137 | */ | |
2138 | ||
2139 | char len[32]; /* Length string */ | |
2140 | ||
2141 | httpGets(len, sizeof(len), http); | |
2142 | } | |
2143 | } | |
ef416fc2 | 2144 | } |
2145 | ||
0fa6c7fa MS |
2146 | if ( |
2147 | #ifdef HAVE_LIBZ | |
d423d83d MS |
2148 | (http->coding == _HTTP_CODING_IDENTITY || |
2149 | (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in == 0)) && | |
0fa6c7fa MS |
2150 | #endif /* HAVE_LIBZ */ |
2151 | ((http->data_remaining <= 0 && | |
2152 | http->data_encoding == HTTP_ENCODING_LENGTH) || | |
2153 | (http->data_encoding == HTTP_ENCODING_CHUNKED && bytes == 0))) | |
ef416fc2 | 2154 | { |
a469f8a5 | 2155 | #ifdef HAVE_LIBZ |
d423d83d | 2156 | if (http->coding >= _HTTP_CODING_GUNZIP) |
0fa6c7fa | 2157 | http_content_coding_finish(http); |
a469f8a5 MS |
2158 | #endif /* HAVE_LIBZ */ |
2159 | ||
0fa6c7fa MS |
2160 | if (http->state == HTTP_STATE_POST_RECV) |
2161 | http->state ++; | |
6961465f MS |
2162 | else if (http->state == HTTP_STATE_GET_SEND || |
2163 | http->state == HTTP_STATE_POST_SEND) | |
2164 | http->state = HTTP_STATE_WAITING; | |
0fa6c7fa | 2165 | else |
cb7f98ee | 2166 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 2167 | |
0fa6c7fa | 2168 | DEBUG_printf(("1httpRead2: End of content, set state to %s.", |
48bd1142 | 2169 | httpStateString(http->state))); |
ef416fc2 | 2170 | } |
2171 | ||
ef416fc2 | 2172 | return (bytes); |
2173 | } | |
2174 | ||
2175 | ||
ef416fc2 | 2176 | /* |
a469f8a5 MS |
2177 | * 'httpReadRequest()' - Read a HTTP request from a connection. |
2178 | * | |
8072030b | 2179 | * @since CUPS 1.7/macOS 10.9@ |
ef416fc2 | 2180 | */ |
2181 | ||
a469f8a5 MS |
2182 | http_state_t /* O - New state of connection */ |
2183 | httpReadRequest(http_t *http, /* I - HTTP connection */ | |
2184 | char *uri, /* I - URI buffer */ | |
2185 | size_t urilen) /* I - Size of URI buffer */ | |
dcb445bc | 2186 | { |
a469f8a5 MS |
2187 | char line[4096], /* HTTP request line */ |
2188 | *req_method, /* HTTP request method */ | |
2189 | *req_uri, /* HTTP request URI */ | |
2190 | *req_version; /* HTTP request version number string */ | |
dcb445bc MS |
2191 | |
2192 | ||
a469f8a5 MS |
2193 | /* |
2194 | * Range check input... | |
2195 | */ | |
ef416fc2 | 2196 | |
807315e6 | 2197 | DEBUG_printf(("httpReadRequest(http=%p, uri=%p, urilen=" CUPS_LLFMT ")", (void *)http, (void *)uri, CUPS_LLCAST urilen)); |
ef416fc2 | 2198 | |
a469f8a5 MS |
2199 | if (uri) |
2200 | *uri = '\0'; | |
ef416fc2 | 2201 | |
a469f8a5 | 2202 | if (!http || !uri || urilen < 1) |
dcb445bc | 2203 | { |
a469f8a5 MS |
2204 | DEBUG_puts("1httpReadRequest: Bad arguments, returning HTTP_STATE_ERROR."); |
2205 | return (HTTP_STATE_ERROR); | |
dcb445bc | 2206 | } |
a469f8a5 | 2207 | else if (http->state != HTTP_STATE_WAITING) |
1ff0402e | 2208 | { |
a469f8a5 | 2209 | DEBUG_printf(("1httpReadRequest: Bad state %s, returning HTTP_STATE_ERROR.", |
48bd1142 | 2210 | httpStateString(http->state))); |
a469f8a5 | 2211 | return (HTTP_STATE_ERROR); |
1ff0402e | 2212 | } |
ef416fc2 | 2213 | |
2214 | /* | |
a469f8a5 | 2215 | * Reset state... |
ef416fc2 | 2216 | */ |
2217 | ||
a469f8a5 | 2218 | httpClearFields(http); |
ef416fc2 | 2219 | |
a469f8a5 MS |
2220 | http->activity = time(NULL); |
2221 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
2222 | http->data_remaining = 0; | |
2223 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2224 | http->status = HTTP_STATUS_OK; | |
2225 | http->version = HTTP_VERSION_1_1; | |
bd7854cb | 2226 | |
a29fd7dd | 2227 | /* |
a469f8a5 | 2228 | * Read a line from the socket... |
a29fd7dd MS |
2229 | */ |
2230 | ||
a469f8a5 MS |
2231 | if (!httpGets(line, sizeof(line), http)) |
2232 | { | |
2233 | DEBUG_puts("1httpReadRequest: Unable to read, returning HTTP_STATE_ERROR"); | |
2234 | return (HTTP_STATE_ERROR); | |
2235 | } | |
2236 | ||
2237 | if (!line[0]) | |
2238 | { | |
2239 | DEBUG_puts("1httpReadRequest: Blank line, returning HTTP_STATE_WAITING"); | |
2240 | return (HTTP_STATE_WAITING); | |
2241 | } | |
2242 | ||
2243 | DEBUG_printf(("1httpReadRequest: %s", line)); | |
2244 | ||
2245 | /* | |
2246 | * Parse it... | |
2247 | */ | |
2248 | ||
2249 | req_method = line; | |
2250 | req_uri = line; | |
2251 | ||
2252 | while (*req_uri && !isspace(*req_uri & 255)) | |
2253 | req_uri ++; | |
2254 | ||
2255 | if (!*req_uri) | |
2256 | { | |
2257 | DEBUG_puts("1httpReadRequest: No request URI."); | |
d21dc0ed | 2258 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request URI."), 1); |
a469f8a5 MS |
2259 | return (HTTP_STATE_ERROR); |
2260 | } | |
2261 | ||
2262 | *req_uri++ = '\0'; | |
2263 | ||
2264 | while (*req_uri && isspace(*req_uri & 255)) | |
2265 | req_uri ++; | |
2266 | ||
2267 | req_version = req_uri; | |
2268 | ||
2269 | while (*req_version && !isspace(*req_version & 255)) | |
2270 | req_version ++; | |
2271 | ||
2272 | if (!*req_version) | |
2273 | { | |
2274 | DEBUG_puts("1httpReadRequest: No request protocol version."); | |
d21dc0ed | 2275 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No request protocol version."), 1); |
a469f8a5 MS |
2276 | return (HTTP_STATE_ERROR); |
2277 | } | |
2278 | ||
2279 | *req_version++ = '\0'; | |
2280 | ||
2281 | while (*req_version && isspace(*req_version & 255)) | |
2282 | req_version ++; | |
2283 | ||
2284 | /* | |
2285 | * Validate... | |
2286 | */ | |
2287 | ||
2288 | if (!strcmp(req_method, "OPTIONS")) | |
2289 | http->state = HTTP_STATE_OPTIONS; | |
2290 | else if (!strcmp(req_method, "GET")) | |
2291 | http->state = HTTP_STATE_GET; | |
2292 | else if (!strcmp(req_method, "HEAD")) | |
2293 | http->state = HTTP_STATE_HEAD; | |
2294 | else if (!strcmp(req_method, "POST")) | |
2295 | http->state = HTTP_STATE_POST; | |
2296 | else if (!strcmp(req_method, "PUT")) | |
2297 | http->state = HTTP_STATE_PUT; | |
2298 | else if (!strcmp(req_method, "DELETE")) | |
2299 | http->state = HTTP_STATE_DELETE; | |
2300 | else if (!strcmp(req_method, "TRACE")) | |
2301 | http->state = HTTP_STATE_TRACE; | |
2302 | else if (!strcmp(req_method, "CONNECT")) | |
2303 | http->state = HTTP_STATE_CONNECT; | |
2304 | else | |
2305 | { | |
2306 | DEBUG_printf(("1httpReadRequest: Unknown method \"%s\".", req_method)); | |
d21dc0ed | 2307 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request method."), 1); |
a469f8a5 MS |
2308 | return (HTTP_STATE_UNKNOWN_METHOD); |
2309 | } | |
2310 | ||
2311 | DEBUG_printf(("1httpReadRequest: Set state to %s.", | |
48bd1142 | 2312 | httpStateString(http->state))); |
a469f8a5 MS |
2313 | |
2314 | if (!strcmp(req_version, "HTTP/1.0")) | |
2315 | { | |
2316 | http->version = HTTP_VERSION_1_0; | |
2317 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
2318 | } | |
2319 | else if (!strcmp(req_version, "HTTP/1.1")) | |
2320 | { | |
2321 | http->version = HTTP_VERSION_1_1; | |
2322 | http->keep_alive = HTTP_KEEPALIVE_ON; | |
2323 | } | |
2324 | else | |
2325 | { | |
2326 | DEBUG_printf(("1httpReadRequest: Unknown version \"%s\".", req_version)); | |
d21dc0ed | 2327 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unknown request version."), 1); |
a469f8a5 MS |
2328 | return (HTTP_STATE_UNKNOWN_VERSION); |
2329 | } | |
2330 | ||
2331 | DEBUG_printf(("1httpReadRequest: URI is \"%s\".", req_uri)); | |
2332 | strlcpy(uri, req_uri, urilen); | |
2333 | ||
2334 | return (http->state); | |
2335 | } | |
2336 | ||
2337 | ||
2338 | /* | |
2339 | * 'httpReconnect()' - Reconnect to a HTTP server. | |
2340 | * | |
2341 | * This function is deprecated. Please use the @link httpReconnect2@ function | |
2342 | * instead. | |
2343 | * | |
53af7f21 | 2344 | * @deprecated@ @exclude all@ |
a469f8a5 MS |
2345 | */ |
2346 | ||
2347 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2348 | httpReconnect(http_t *http) /* I - HTTP connection */ |
a469f8a5 | 2349 | { |
807315e6 | 2350 | DEBUG_printf(("httpReconnect(http=%p)", (void *)http)); |
a469f8a5 MS |
2351 | |
2352 | return (httpReconnect2(http, 30000, NULL)); | |
2353 | } | |
2354 | ||
2355 | ||
2356 | /* | |
2357 | * 'httpReconnect2()' - Reconnect to a HTTP server with timeout and optional | |
2358 | * cancel. | |
2359 | */ | |
2360 | ||
2361 | int /* O - 0 on success, non-zero on failure */ | |
e6b1a6a9 | 2362 | httpReconnect2(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
2363 | int msec, /* I - Timeout in milliseconds */ |
2364 | int *cancel) /* I - Pointer to "cancel" variable */ | |
2365 | { | |
2366 | http_addrlist_t *addr; /* Connected address */ | |
2367 | #ifdef DEBUG | |
2368 | http_addrlist_t *current; /* Current address */ | |
2369 | char temp[256]; /* Temporary address string */ | |
2370 | #endif /* DEBUG */ | |
2371 | ||
2372 | ||
807315e6 | 2373 | DEBUG_printf(("httpReconnect2(http=%p, msec=%d, cancel=%p)", (void *)http, msec, (void *)cancel)); |
a469f8a5 MS |
2374 | |
2375 | if (!http) | |
2376 | { | |
cb7f98ee | 2377 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0); |
a469f8a5 MS |
2378 | return (-1); |
2379 | } | |
2380 | ||
2381 | #ifdef HAVE_SSL | |
2382 | if (http->tls) | |
2383 | { | |
2384 | DEBUG_puts("2httpReconnect2: Shutting down SSL/TLS..."); | |
25731360 | 2385 | _httpTLSStop(http); |
a469f8a5 MS |
2386 | } |
2387 | #endif /* HAVE_SSL */ | |
2388 | ||
2389 | /* | |
2390 | * Close any previously open socket... | |
2391 | */ | |
2392 | ||
2393 | if (http->fd >= 0) | |
2394 | { | |
2395 | DEBUG_printf(("2httpReconnect2: Closing socket %d...", http->fd)); | |
2396 | ||
87e98392 | 2397 | httpAddrClose(NULL, http->fd); |
a469f8a5 MS |
2398 | |
2399 | http->fd = -1; | |
2400 | } | |
2401 | ||
2402 | /* | |
2403 | * Reset all state (except fields, which may be reused)... | |
2404 | */ | |
2405 | ||
2406 | http->state = HTTP_STATE_WAITING; | |
a469f8a5 MS |
2407 | http->version = HTTP_VERSION_1_1; |
2408 | http->keep_alive = HTTP_KEEPALIVE_OFF; | |
a29fd7dd | 2409 | memset(&http->_hostaddr, 0, sizeof(http->_hostaddr)); |
a469f8a5 | 2410 | http->data_encoding = HTTP_ENCODING_FIELDS; |
a29fd7dd MS |
2411 | http->_data_remaining = 0; |
2412 | http->used = 0; | |
a29fd7dd MS |
2413 | http->data_remaining = 0; |
2414 | http->hostaddr = NULL; | |
2415 | http->wused = 0; | |
2416 | ||
ef416fc2 | 2417 | /* |
2418 | * Connect to the server... | |
2419 | */ | |
2420 | ||
1ff0402e MS |
2421 | #ifdef DEBUG |
2422 | for (current = http->addrlist; current; current = current->next) | |
12f89d24 | 2423 | DEBUG_printf(("2httpReconnect2: Address %s:%d", |
1ff0402e | 2424 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
a469f8a5 | 2425 | httpAddrPort(&(current->addr)))); |
1ff0402e MS |
2426 | #endif /* DEBUG */ |
2427 | ||
d5cc05c9 | 2428 | if ((addr = httpAddrConnect2(http->addrlist, &(http->fd), msec, cancel)) == NULL) |
ef416fc2 | 2429 | { |
2430 | /* | |
2431 | * Unable to connect... | |
2432 | */ | |
2433 | ||
2434 | #ifdef WIN32 | |
2435 | http->error = WSAGetLastError(); | |
2436 | #else | |
2437 | http->error = errno; | |
2438 | #endif /* WIN32 */ | |
cb7f98ee | 2439 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 2440 | |
12f89d24 | 2441 | DEBUG_printf(("1httpReconnect2: httpAddrConnect failed: %s", |
1ff0402e MS |
2442 | strerror(http->error))); |
2443 | ||
ef416fc2 | 2444 | return (-1); |
2445 | } | |
2446 | ||
12f89d24 | 2447 | DEBUG_printf(("2httpReconnect2: New socket=%d", http->fd)); |
1ff0402e | 2448 | |
85dda01c MS |
2449 | if (http->timeout_value > 0) |
2450 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2451 | |
ef416fc2 | 2452 | http->hostaddr = &(addr->addr); |
2453 | http->error = 0; | |
ef416fc2 | 2454 | |
2455 | #ifdef HAVE_SSL | |
cb7f98ee | 2456 | if (http->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 2457 | { |
2458 | /* | |
2459 | * Always do encryption via SSL. | |
2460 | */ | |
2461 | ||
25731360 | 2462 | if (_httpTLSStart(http) != 0) |
ef416fc2 | 2463 | { |
87e98392 | 2464 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2465 | |
2466 | return (-1); | |
2467 | } | |
2468 | } | |
cb7f98ee | 2469 | else if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls_upgrade) |
2c85b752 | 2470 | return (http_tls_upgrade(http)); |
ef416fc2 | 2471 | #endif /* HAVE_SSL */ |
2472 | ||
12f89d24 | 2473 | DEBUG_printf(("1httpReconnect2: Connected to %s:%d...", |
1ff0402e | 2474 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
a469f8a5 | 2475 | httpAddrPort(http->hostaddr))); |
1ff0402e | 2476 | |
ef416fc2 | 2477 | return (0); |
2478 | } | |
2479 | ||
2480 | ||
355e94dc MS |
2481 | /* |
2482 | * 'httpSetAuthString()' - Set the current authorization string. | |
2483 | * | |
2484 | * This function just stores a copy of the current authorization string in | |
98d88c8d MS |
2485 | * the HTTP connection object. You must still call @link httpSetField@ to set |
2486 | * @code HTTP_FIELD_AUTHORIZATION@ prior to issuing a HTTP request using | |
2487 | * @link httpGet@, @link httpHead@, @link httpOptions@, @link httpPost@, or | |
2488 | * @link httpPut@. | |
355e94dc | 2489 | * |
8072030b | 2490 | * @since CUPS 1.3/macOS 10.5@ |
355e94dc MS |
2491 | */ |
2492 | ||
2493 | void | |
e6b1a6a9 | 2494 | httpSetAuthString(http_t *http, /* I - HTTP connection */ |
355e94dc MS |
2495 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2496 | const char *data) /* I - Auth data (NULL for none) */ | |
2497 | { | |
2498 | /* | |
2499 | * Range check input... | |
2500 | */ | |
2501 | ||
2502 | if (!http) | |
2503 | return; | |
2504 | ||
2505 | if (http->authstring && http->authstring != http->_authstring) | |
2506 | free(http->authstring); | |
2507 | ||
2508 | http->authstring = http->_authstring; | |
2509 | ||
2510 | if (scheme) | |
2511 | { | |
2512 | /* | |
2513 | * Set the current authorization string... | |
2514 | */ | |
2515 | ||
7e86f2f6 | 2516 | size_t len = strlen(scheme) + (data ? strlen(data) + 1 : 0) + 1; |
91c84a35 | 2517 | char *temp; |
355e94dc | 2518 | |
7e86f2f6 | 2519 | if (len > sizeof(http->_authstring)) |
91c84a35 MS |
2520 | { |
2521 | if ((temp = malloc(len)) == NULL) | |
2522 | len = sizeof(http->_authstring); | |
2523 | else | |
2524 | http->authstring = temp; | |
2525 | } | |
355e94dc MS |
2526 | |
2527 | if (data) | |
2528 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2529 | else | |
2530 | strlcpy(http->authstring, scheme, len); | |
2531 | } | |
2532 | else | |
2533 | { | |
2534 | /* | |
2535 | * Clear the current authorization string... | |
2536 | */ | |
2537 | ||
2538 | http->_authstring[0] = '\0'; | |
2539 | } | |
2540 | } | |
2541 | ||
2542 | ||
7cf5915e MS |
2543 | /* |
2544 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2545 | * connection. | |
2546 | * | |
8072030b | 2547 | * @since CUPS 1.5/macOS 10.7@ |
7cf5915e MS |
2548 | */ |
2549 | ||
2550 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2551 | httpSetCredentials(http_t *http, /* I - HTTP connection */ |
7cf5915e MS |
2552 | cups_array_t *credentials) /* I - Array of credentials */ |
2553 | { | |
2554 | if (!http || cupsArrayCount(credentials) < 1) | |
2555 | return (-1); | |
2556 | ||
7d5824d6 | 2557 | #ifdef HAVE_SSL |
7cf5915e MS |
2558 | _httpFreeCredentials(http->tls_credentials); |
2559 | ||
85dda01c | 2560 | http->tls_credentials = _httpCreateCredentials(credentials); |
7d5824d6 | 2561 | #endif /* HAVE_SSL */ |
7cf5915e MS |
2562 | |
2563 | return (http->tls_credentials ? 0 : -1); | |
2564 | } | |
2565 | ||
2566 | ||
ef416fc2 | 2567 | /* |
6d2f911b | 2568 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2569 | * |
8072030b | 2570 | * @since CUPS 1.1.19/macOS 10.3@ |
ef416fc2 | 2571 | */ |
2572 | ||
2573 | void | |
2574 | httpSetCookie(http_t *http, /* I - Connection */ | |
2575 | const char *cookie) /* I - Cookie string */ | |
2576 | { | |
2577 | if (!http) | |
2578 | return; | |
2579 | ||
2580 | if (http->cookie) | |
2581 | free(http->cookie); | |
2582 | ||
2583 | if (cookie) | |
2584 | http->cookie = strdup(cookie); | |
2585 | else | |
2586 | http->cookie = NULL; | |
2587 | } | |
2588 | ||
2589 | ||
c1420c87 MS |
2590 | /* |
2591 | * 'httpSetDefaultField()' - Set the default value of an HTTP header. | |
2592 | * | |
6961465f MS |
2593 | * Currently only @code HTTP_FIELD_ACCEPT_ENCODING@, @code HTTP_FIELD_SERVER@, |
2594 | * and @code HTTP_FIELD_USER_AGENT@ can be set. | |
c1420c87 | 2595 | * |
8072030b | 2596 | * @since CUPS 1.7/macOS 10.9@ |
c1420c87 MS |
2597 | */ |
2598 | ||
2599 | void | |
e6b1a6a9 | 2600 | httpSetDefaultField(http_t *http, /* I - HTTP connection */ |
c1420c87 MS |
2601 | http_field_t field, /* I - Field index */ |
2602 | const char *value)/* I - Value */ | |
2603 | { | |
807315e6 | 2604 | DEBUG_printf(("httpSetDefaultField(http=%p, field=%d(%s), value=\"%s\")", (void *)http, field, http_fields[field], value)); |
c1420c87 MS |
2605 | |
2606 | if (!http) | |
2607 | return; | |
2608 | ||
2609 | switch (field) | |
2610 | { | |
2611 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2612 | if (http->default_accept_encoding) | |
2613 | _cupsStrFree(http->default_accept_encoding); | |
2614 | ||
2615 | http->default_accept_encoding = value ? _cupsStrAlloc(value) : NULL; | |
2616 | break; | |
2617 | ||
2618 | case HTTP_FIELD_SERVER : | |
2619 | if (http->default_server) | |
2620 | _cupsStrFree(http->default_server); | |
2621 | ||
2622 | http->default_server = value ? _cupsStrAlloc(value) : NULL; | |
2623 | break; | |
2624 | ||
2625 | case HTTP_FIELD_USER_AGENT : | |
2626 | if (http->default_user_agent) | |
2627 | _cupsStrFree(http->default_user_agent); | |
2628 | ||
2629 | http->default_user_agent = value ? _cupsStrAlloc(value) : NULL; | |
2630 | break; | |
2631 | ||
2632 | default : | |
2633 | DEBUG_puts("1httpSetDefaultField: Ignored."); | |
2634 | break; | |
2635 | } | |
2636 | } | |
2637 | ||
2638 | ||
b423cd4c | 2639 | /* |
2640 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2641 | * | |
a469f8a5 MS |
2642 | * Currently only @code HTTP_STATUS_CONTINUE@ is supported for the "expect" |
2643 | * argument. | |
b423cd4c | 2644 | * |
8072030b | 2645 | * @since CUPS 1.2/macOS 10.5@ |
b423cd4c | 2646 | */ |
2647 | ||
2648 | void | |
e6b1a6a9 | 2649 | httpSetExpect(http_t *http, /* I - HTTP connection */ |
a469f8a5 | 2650 | http_status_t expect) /* I - HTTP status to expect |
cb7f98ee | 2651 | (@code HTTP_STATUS_CONTINUE@) */ |
b423cd4c | 2652 | { |
807315e6 | 2653 | DEBUG_printf(("httpSetExpect(http=%p, expect=%d)", (void *)http, expect)); |
cb7f98ee | 2654 | |
b423cd4c | 2655 | if (http) |
2656 | http->expect = expect; | |
2657 | } | |
2658 | ||
2659 | ||
ef416fc2 | 2660 | /* |
2661 | * 'httpSetField()' - Set the value of an HTTP header. | |
2662 | */ | |
2663 | ||
2664 | void | |
e6b1a6a9 | 2665 | httpSetField(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2666 | http_field_t field, /* I - Field index */ |
2667 | const char *value) /* I - Value */ | |
2668 | { | |
807315e6 | 2669 | DEBUG_printf(("httpSetField(http=%p, field=%d(%s), value=\"%s\")", (void *)http, field, http_fields[field], value)); |
a469f8a5 | 2670 | |
ef416fc2 | 2671 | if (http == NULL || |
2672 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
a469f8a5 | 2673 | field >= HTTP_FIELD_MAX || |
ef416fc2 | 2674 | value == NULL) |
2675 | return; | |
2676 | ||
a469f8a5 MS |
2677 | switch (field) |
2678 | { | |
2679 | case HTTP_FIELD_ACCEPT_ENCODING : | |
2680 | if (http->accept_encoding) | |
2681 | _cupsStrFree(http->accept_encoding); | |
2682 | ||
2683 | http->accept_encoding = _cupsStrAlloc(value); | |
2684 | break; | |
2685 | ||
2686 | case HTTP_FIELD_ALLOW : | |
2687 | if (http->allow) | |
2688 | _cupsStrFree(http->allow); | |
2689 | ||
2690 | http->allow = _cupsStrAlloc(value); | |
2691 | break; | |
2692 | ||
2693 | case HTTP_FIELD_SERVER : | |
2694 | if (http->server) | |
2695 | _cupsStrFree(http->server); | |
2696 | ||
2697 | http->server = _cupsStrAlloc(value); | |
2698 | break; | |
2699 | ||
4978eed9 | 2700 | case HTTP_FIELD_WWW_AUTHENTICATE : |
7ec11630 MS |
2701 | if (!http->www_authenticate) |
2702 | { | |
2703 | /* | |
2704 | * First WWW-Authenticate seen, just copy it over... | |
2705 | */ | |
4978eed9 | 2706 | |
7ec11630 MS |
2707 | http->www_authenticate = strdup(value); |
2708 | strlcpy(http->fields[HTTP_FIELD_WWW_AUTHENTICATE], value, HTTP_MAX_VALUE); | |
2709 | } | |
2710 | else | |
2711 | { | |
2712 | /* | |
2713 | * Nth WWW-Authenticate seen, append to existing string... | |
2714 | */ | |
2715 | ||
2716 | size_t len = strlen(http->www_authenticate) + 2 + strlen(value) + 1; | |
2717 | char *temp = realloc(http->www_authenticate, len); | |
2718 | ||
2719 | if (!temp) | |
2720 | return; | |
2721 | ||
2722 | http->www_authenticate = temp; | |
2723 | strlcat(http->www_authenticate, ", ", len); | |
2724 | strlcat(http->www_authenticate, value, len); | |
2725 | ||
2726 | /* Probably more efficient than two more strlcat's */ | |
2727 | strlcpy(http->fields[HTTP_FIELD_WWW_AUTHENTICATE], http->www_authenticate, HTTP_MAX_VALUE); | |
2728 | } | |
2729 | break; | |
4978eed9 | 2730 | |
a469f8a5 MS |
2731 | default : |
2732 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
2733 | break; | |
2734 | } | |
f7deaa1a | 2735 | |
f7deaa1a | 2736 | if (field == HTTP_FIELD_AUTHORIZATION) |
2737 | { | |
e07d4801 MS |
2738 | /* |
2739 | * Special case for Authorization: as its contents can be | |
2740 | * longer than HTTP_MAX_VALUE | |
2741 | */ | |
2742 | ||
f7deaa1a | 2743 | if (http->field_authorization) |
2744 | free(http->field_authorization); | |
2745 | ||
2746 | http->field_authorization = strdup(value); | |
2747 | } | |
e07d4801 MS |
2748 | else if (field == HTTP_FIELD_HOST) |
2749 | { | |
2750 | /* | |
f11a948a MS |
2751 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2752 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2753 | */ |
2754 | ||
178cb736 MS |
2755 | char *ptr = strchr(value, ':'); |
2756 | ||
2757 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2758 | { |
2759 | /* | |
2760 | * Bracket IPv6 numeric addresses... | |
2761 | * | |
2762 | * This is slightly inefficient (basically copying twice), but is an edge | |
2763 | * case and not worth optimizing... | |
2764 | */ | |
e07d4801 | 2765 | |
f11a948a MS |
2766 | snprintf(http->fields[HTTP_FIELD_HOST], |
2767 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2768 | } | |
2769 | else | |
e07d4801 | 2770 | { |
f11a948a MS |
2771 | /* |
2772 | * Check for a trailing dot on the hostname... | |
2773 | */ | |
2774 | ||
178cb736 | 2775 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2776 | |
2777 | if (*ptr) | |
2778 | { | |
2779 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2780 | |
f11a948a MS |
2781 | if (*ptr == '.') |
2782 | *ptr = '\0'; | |
2783 | } | |
e07d4801 MS |
2784 | } |
2785 | } | |
a469f8a5 MS |
2786 | #ifdef HAVE_LIBZ |
2787 | else if (field == HTTP_FIELD_CONTENT_ENCODING && | |
2788 | http->data_encoding != HTTP_ENCODING_FIELDS) | |
2789 | { | |
2790 | DEBUG_puts("1httpSetField: Calling http_content_coding_start."); | |
2791 | http_content_coding_start(http, value); | |
2792 | } | |
2793 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 2794 | } |
2795 | ||
2796 | ||
e6b1a6a9 MS |
2797 | /* |
2798 | * 'httpSetKeepAlive()' - Set the current Keep-Alive state of a connection. | |
2799 | * | |
e1f19878 | 2800 | * @since CUPS 2.0/OS 10.10@ |
e6b1a6a9 MS |
2801 | */ |
2802 | ||
2803 | void | |
2804 | httpSetKeepAlive( | |
2805 | http_t *http, /* I - HTTP connection */ | |
2806 | http_keepalive_t keep_alive) /* I - New Keep-Alive value */ | |
2807 | { | |
2808 | if (http) | |
2809 | http->keep_alive = keep_alive; | |
2810 | } | |
2811 | ||
2812 | ||
ef416fc2 | 2813 | /* |
2814 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2815 | * | |
8072030b | 2816 | * @since CUPS 1.2/macOS 10.5@ |
ef416fc2 | 2817 | */ |
2818 | ||
2819 | void | |
e6b1a6a9 | 2820 | httpSetLength(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2821 | size_t length) /* I - Length (0 for chunked) */ |
2822 | { | |
807315e6 | 2823 | DEBUG_printf(("httpSetLength(http=%p, length=" CUPS_LLFMT ")", (void *)http, CUPS_LLCAST length)); |
a469f8a5 | 2824 | |
ef416fc2 | 2825 | if (!http) |
2826 | return; | |
2827 | ||
2828 | if (!length) | |
2829 | { | |
5a9febac MS |
2830 | strlcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked", |
2831 | HTTP_MAX_VALUE); | |
ef416fc2 | 2832 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; |
2833 | } | |
2834 | else | |
2835 | { | |
2836 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2837 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2838 | CUPS_LLFMT, CUPS_LLCAST length); | |
2839 | } | |
2840 | } | |
2841 | ||
2842 | ||
10d09e33 | 2843 | /* |
f228370c | 2844 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2845 | * |
2846 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2847 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2848 | * | |
8072030b | 2849 | * @since CUPS 1.5/macOS 10.7@ |
10d09e33 MS |
2850 | */ |
2851 | ||
2852 | void | |
f228370c | 2853 | httpSetTimeout( |
e6b1a6a9 | 2854 | http_t *http, /* I - HTTP connection */ |
f228370c | 2855 | double timeout, /* I - Number of seconds for timeout, |
10d09e33 | 2856 | must be greater than 0 */ |
98d88c8d | 2857 | http_timeout_cb_t cb, /* I - Callback function or @code NULL@ */ |
f228370c | 2858 | void *user_data) /* I - User data pointer */ |
10d09e33 MS |
2859 | { |
2860 | if (!http || timeout <= 0.0) | |
2861 | return; | |
2862 | ||
85dda01c MS |
2863 | http->timeout_cb = cb; |
2864 | http->timeout_data = user_data; | |
2865 | http->timeout_value = timeout; | |
10d09e33 MS |
2866 | |
2867 | if (http->fd >= 0) | |
85dda01c | 2868 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2869 | |
85dda01c | 2870 | http_set_wait(http); |
10d09e33 MS |
2871 | } |
2872 | ||
2873 | ||
5ec1fd3d MS |
2874 | /* |
2875 | * 'httpShutdown()' - Shutdown one side of an HTTP connection. | |
2876 | * | |
e1f19878 | 2877 | * @since CUPS 2.0/OS 10.10@ |
5ec1fd3d MS |
2878 | */ |
2879 | ||
2880 | void | |
2881 | httpShutdown(http_t *http) /* I - HTTP connection */ | |
2882 | { | |
2883 | if (!http || http->fd < 0) | |
2884 | return; | |
2885 | ||
7d5824d6 | 2886 | #ifdef HAVE_SSL |
5ec1fd3d | 2887 | if (http->tls) |
25731360 | 2888 | _httpTLSStop(http); |
7d5824d6 | 2889 | #endif /* HAVE_SSL */ |
5ec1fd3d | 2890 | |
33c9220c MS |
2891 | #ifdef WIN32 |
2892 | shutdown(http->fd, SD_RECEIVE); /* Microsoft-ism... */ | |
2893 | #else | |
5ec1fd3d | 2894 | shutdown(http->fd, SHUT_RD); |
33c9220c | 2895 | #endif /* WIN32 */ |
5ec1fd3d MS |
2896 | } |
2897 | ||
2898 | ||
ef416fc2 | 2899 | /* |
2900 | * 'httpTrace()' - Send an TRACE request to the server. | |
98d88c8d MS |
2901 | * |
2902 | * @exclude all@ | |
ef416fc2 | 2903 | */ |
2904 | ||
2905 | int /* O - Status of call (0 = success) */ | |
e6b1a6a9 | 2906 | httpTrace(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 2907 | const char *uri) /* I - URI for trace */ |
2908 | { | |
cb7f98ee | 2909 | return (http_send(http, HTTP_STATE_TRACE, uri)); |
ef416fc2 | 2910 | } |
2911 | ||
2912 | ||
2913 | /* | |
e60ec91f MS |
2914 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2915 | * | |
2916 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2917 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2918 | */ |
2919 | ||
e60ec91f | 2920 | int /* O - 1 to continue, 0 to stop */ |
e6b1a6a9 | 2921 | _httpUpdate(http_t *http, /* I - HTTP connection */ |
e60ec91f | 2922 | http_status_t *status) /* O - Current HTTP status */ |
ef416fc2 | 2923 | { |
2924 | char line[32768], /* Line from connection... */ | |
2925 | *value; /* Pointer to value on line */ | |
2926 | http_field_t field; /* Field index */ | |
e60ec91f | 2927 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2928 | |
2929 | ||
807315e6 | 2930 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", (void *)http, (void *)status, httpStateString(http->state))); |
ef416fc2 | 2931 | |
2932 | /* | |
e60ec91f | 2933 | * Grab a single line from the connection... |
ef416fc2 | 2934 | */ |
2935 | ||
e60ec91f | 2936 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2937 | { |
cb7f98ee | 2938 | *status = HTTP_STATUS_ERROR; |
e60ec91f | 2939 | return (0); |
ef416fc2 | 2940 | } |
2941 | ||
e60ec91f | 2942 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2943 | |
e60ec91f | 2944 | if (line[0] == '\0') |
ef416fc2 | 2945 | { |
e60ec91f MS |
2946 | /* |
2947 | * Blank line means the start of the data section (if any). Return | |
2948 | * the result code, too... | |
2949 | * | |
a469f8a5 MS |
2950 | * If we get status 100 (HTTP_STATUS_CONTINUE), then we *don't* change |
2951 | * states. Instead, we just return HTTP_STATUS_CONTINUE to the caller and | |
2952 | * keep on tryin'... | |
e60ec91f | 2953 | */ |
ef416fc2 | 2954 | |
a469f8a5 | 2955 | if (http->status == HTTP_STATUS_CONTINUE) |
ef416fc2 | 2956 | { |
e60ec91f MS |
2957 | *status = http->status; |
2958 | return (0); | |
2959 | } | |
ef416fc2 | 2960 | |
cb7f98ee | 2961 | if (http->status < HTTP_STATUS_BAD_REQUEST) |
e60ec91f | 2962 | http->digest_tries = 0; |
ef416fc2 | 2963 | |
2964 | #ifdef HAVE_SSL | |
cb7f98ee | 2965 | if (http->status == HTTP_STATUS_SWITCHING_PROTOCOLS && !http->tls) |
e60ec91f | 2966 | { |
25731360 | 2967 | if (_httpTLSStart(http) != 0) |
ef416fc2 | 2968 | { |
87e98392 | 2969 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 2970 | |
cb7f98ee | 2971 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f | 2972 | return (0); |
ef416fc2 | 2973 | } |
e60ec91f | 2974 | |
a469f8a5 | 2975 | *status = HTTP_STATUS_CONTINUE; |
e60ec91f MS |
2976 | return (0); |
2977 | } | |
ef416fc2 | 2978 | #endif /* HAVE_SSL */ |
2979 | ||
a469f8a5 MS |
2980 | if (http_set_length(http) < 0) |
2981 | { | |
2982 | DEBUG_puts("1_httpUpdate: Bad Content-Length."); | |
2983 | http->error = EINVAL; | |
cb7f98ee | 2984 | http->status = *status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
2985 | return (0); |
2986 | } | |
ef416fc2 | 2987 | |
e60ec91f MS |
2988 | switch (http->state) |
2989 | { | |
c41769ff MS |
2990 | case HTTP_STATE_GET : |
2991 | case HTTP_STATE_POST : | |
a469f8a5 | 2992 | case HTTP_STATE_POST_RECV : |
c41769ff | 2993 | case HTTP_STATE_PUT : |
e60ec91f | 2994 | http->state ++; |
a469f8a5 MS |
2995 | |
2996 | DEBUG_printf(("1_httpUpdate: Set state to %s.", | |
48bd1142 | 2997 | httpStateString(http->state))); |
a469f8a5 | 2998 | |
c41769ff MS |
2999 | case HTTP_STATE_POST_SEND : |
3000 | case HTTP_STATE_HEAD : | |
e60ec91f | 3001 | break; |
ef416fc2 | 3002 | |
e60ec91f | 3003 | default : |
a469f8a5 MS |
3004 | http->state = HTTP_STATE_WAITING; |
3005 | ||
cb7f98ee | 3006 | DEBUG_puts("1_httpUpdate: Reset state to HTTP_STATE_WAITING."); |
e60ec91f | 3007 | break; |
ef416fc2 | 3008 | } |
e60ec91f | 3009 | |
a469f8a5 MS |
3010 | #ifdef HAVE_LIBZ |
3011 | DEBUG_puts("1_httpUpdate: Calling http_content_coding_start."); | |
3012 | http_content_coding_start(http, | |
3013 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
3014 | #endif /* HAVE_LIBZ */ | |
3015 | ||
e60ec91f MS |
3016 | *status = http->status; |
3017 | return (0); | |
3018 | } | |
be939dc2 | 3019 | else if (!strncmp(line, "HTTP/", 5) && http->mode == _HTTP_MODE_CLIENT) |
e60ec91f MS |
3020 | { |
3021 | /* | |
3022 | * Got the beginning of a response... | |
3023 | */ | |
3024 | ||
3025 | int intstatus; /* Status value as an integer */ | |
3026 | ||
3027 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
3028 | { | |
cb7f98ee | 3029 | *status = http->status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3030 | return (0); |
3031 | } | |
3032 | ||
a469f8a5 MS |
3033 | httpClearFields(http); |
3034 | ||
e60ec91f MS |
3035 | http->version = (http_version_t)(major * 100 + minor); |
3036 | *status = http->status = (http_status_t)intstatus; | |
3037 | } | |
3038 | else if ((value = strchr(line, ':')) != NULL) | |
3039 | { | |
3040 | /* | |
3041 | * Got a value... | |
3042 | */ | |
3043 | ||
3044 | *value++ = '\0'; | |
3045 | while (_cups_isspace(*value)) | |
3046 | value ++; | |
3047 | ||
a469f8a5 MS |
3048 | DEBUG_printf(("1_httpUpdate: Header %s: %s", line, value)); |
3049 | ||
e60ec91f MS |
3050 | /* |
3051 | * Be tolerants of servers that send unknown attribute fields... | |
3052 | */ | |
3053 | ||
88f9aafc | 3054 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 3055 | { |
3056 | /* | |
e60ec91f | 3057 | * "Expect: 100-continue" or similar... |
ef416fc2 | 3058 | */ |
3059 | ||
e60ec91f | 3060 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 3061 | } |
88f9aafc | 3062 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 3063 | { |
3064 | /* | |
e60ec91f | 3065 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 3066 | */ |
3067 | ||
e60ec91f MS |
3068 | httpSetCookie(http, value); |
3069 | } | |
48bd1142 | 3070 | else if ((field = httpFieldValue(line)) != HTTP_FIELD_UNKNOWN) |
e60ec91f MS |
3071 | httpSetField(http, field, value); |
3072 | #ifdef DEBUG | |
3073 | else | |
3074 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
3075 | #endif /* DEBUG */ | |
3076 | } | |
3077 | else | |
3078 | { | |
3079 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
a469f8a5 | 3080 | http->error = EINVAL; |
cb7f98ee | 3081 | http->status = *status = HTTP_STATUS_ERROR; |
e60ec91f MS |
3082 | return (0); |
3083 | } | |
ef416fc2 | 3084 | |
e60ec91f MS |
3085 | return (1); |
3086 | } | |
ef416fc2 | 3087 | |
ef416fc2 | 3088 | |
e60ec91f MS |
3089 | /* |
3090 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
3091 | */ | |
ef416fc2 | 3092 | |
e60ec91f | 3093 | http_status_t /* O - HTTP status */ |
e6b1a6a9 | 3094 | httpUpdate(http_t *http) /* I - HTTP connection */ |
e60ec91f MS |
3095 | { |
3096 | http_status_t status; /* Request status */ | |
3097 | ||
3098 | ||
807315e6 | 3099 | DEBUG_printf(("httpUpdate(http=%p), state=%s", (void *)http, httpStateString(http->state))); |
e60ec91f MS |
3100 | |
3101 | /* | |
3102 | * Flush pending data, if any... | |
3103 | */ | |
3104 | ||
3105 | if (http->wused) | |
3106 | { | |
3107 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
3108 | ||
3109 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 3110 | return (HTTP_STATUS_ERROR); |
ef416fc2 | 3111 | } |
3112 | ||
e60ec91f MS |
3113 | /* |
3114 | * If we haven't issued any commands, then there is nothing to "update"... | |
3115 | */ | |
3116 | ||
a469f8a5 | 3117 | if (http->state == HTTP_STATE_WAITING) |
cb7f98ee | 3118 | return (HTTP_STATUS_CONTINUE); |
e60ec91f MS |
3119 | |
3120 | /* | |
3121 | * Grab all of the lines we can from the connection... | |
3122 | */ | |
3123 | ||
3124 | while (_httpUpdate(http, &status)); | |
3125 | ||
ef416fc2 | 3126 | /* |
3127 | * See if there was an error... | |
3128 | */ | |
3129 | ||
cb7f98ee | 3130 | if (http->error == EPIPE && http->status > HTTP_STATUS_CONTINUE) |
e07d4801 MS |
3131 | { |
3132 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 3133 | return (http->status); |
e07d4801 | 3134 | } |
ef416fc2 | 3135 | |
3136 | if (http->error) | |
3137 | { | |
e07d4801 | 3138 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 3139 | strerror(http->error))); |
cb7f98ee MS |
3140 | http->status = HTTP_STATUS_ERROR; |
3141 | return (HTTP_STATUS_ERROR); | |
ef416fc2 | 3142 | } |
3143 | ||
3144 | /* | |
e60ec91f | 3145 | * Return the current status... |
ef416fc2 | 3146 | */ |
3147 | ||
e60ec91f | 3148 | return (status); |
ef416fc2 | 3149 | } |
3150 | ||
3151 | ||
38e73f87 MS |
3152 | /* |
3153 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
3154 | */ | |
3155 | ||
3156 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3157 | _httpWait(http_t *http, /* I - HTTP connection */ |
38e73f87 MS |
3158 | int msec, /* I - Milliseconds to wait */ |
3159 | int usessl) /* I - Use SSL context? */ | |
3160 | { | |
3161 | #ifdef HAVE_POLL | |
3162 | struct pollfd pfd; /* Polled file descriptor */ | |
3163 | #else | |
3164 | fd_set input_set; /* select() input set */ | |
3165 | struct timeval timeout; /* Timeout */ | |
3166 | #endif /* HAVE_POLL */ | |
3167 | int nfds; /* Result from select()/poll() */ | |
3168 | ||
3169 | ||
807315e6 | 3170 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", (void *)http, msec, usessl)); |
38e73f87 MS |
3171 | |
3172 | if (http->fd < 0) | |
f8b3a85b MS |
3173 | { |
3174 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 3175 | return (0); |
f8b3a85b | 3176 | } |
38e73f87 MS |
3177 | |
3178 | /* | |
3179 | * Check the SSL/TLS buffers for data first... | |
3180 | */ | |
3181 | ||
3182 | #ifdef HAVE_SSL | |
25731360 | 3183 | if (http->tls && _httpTLSPending(http)) |
38e73f87 | 3184 | { |
2c85b752 MS |
3185 | DEBUG_puts("5_httpWait: Return 1 since there is pending TLS data."); |
3186 | return (1); | |
38e73f87 MS |
3187 | } |
3188 | #endif /* HAVE_SSL */ | |
3189 | ||
3190 | /* | |
3191 | * Then try doing a select() or poll() to poll the socket... | |
3192 | */ | |
3193 | ||
3194 | #ifdef HAVE_POLL | |
3195 | pfd.fd = http->fd; | |
3196 | pfd.events = POLLIN; | |
3197 | ||
5a9febac MS |
3198 | do |
3199 | { | |
3200 | nfds = poll(&pfd, 1, msec); | |
3201 | } | |
3202 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
3203 | |
3204 | #else | |
3205 | do | |
3206 | { | |
3207 | FD_ZERO(&input_set); | |
3208 | FD_SET(http->fd, &input_set); | |
3209 | ||
e07d4801 | 3210 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
3211 | |
3212 | if (msec >= 0) | |
3213 | { | |
3214 | timeout.tv_sec = msec / 1000; | |
3215 | timeout.tv_usec = (msec % 1000) * 1000; | |
3216 | ||
3217 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
3218 | } | |
3219 | else | |
3220 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
3221 | ||
e07d4801 | 3222 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
3223 | } |
3224 | # ifdef WIN32 | |
cc754834 MS |
3225 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
3226 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 3227 | # else |
e07d4801 | 3228 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
3229 | # endif /* WIN32 */ |
3230 | #endif /* HAVE_POLL */ | |
3231 | ||
f8b3a85b MS |
3232 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
3233 | errno)); | |
38e73f87 MS |
3234 | |
3235 | return (nfds > 0); | |
3236 | } | |
3237 | ||
3238 | ||
ef416fc2 | 3239 | /* |
3240 | * 'httpWait()' - Wait for data available on a connection. | |
3241 | * | |
8072030b | 3242 | * @since CUPS 1.1.19/macOS 10.3@ |
ef416fc2 | 3243 | */ |
3244 | ||
3245 | int /* O - 1 if data is available, 0 otherwise */ | |
e6b1a6a9 | 3246 | httpWait(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3247 | int msec) /* I - Milliseconds to wait */ |
3248 | { | |
3249 | /* | |
3250 | * First see if there is data in the buffer... | |
3251 | */ | |
3252 | ||
807315e6 | 3253 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", (void *)http, msec)); |
22c9029b | 3254 | |
ef416fc2 | 3255 | if (http == NULL) |
3256 | return (0); | |
3257 | ||
3258 | if (http->used) | |
22c9029b MS |
3259 | { |
3260 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 3261 | return (1); |
22c9029b | 3262 | } |
ef416fc2 | 3263 | |
0fa6c7fa MS |
3264 | #ifdef HAVE_LIBZ |
3265 | if (http->coding >= _HTTP_CODING_GUNZIP && http->stream.avail_in > 0) | |
3266 | { | |
3267 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
3268 | return (1); | |
3269 | } | |
3270 | #endif /* HAVE_LIBZ */ | |
3271 | ||
8ca02f3c | 3272 | /* |
3273 | * Flush pending data, if any... | |
3274 | */ | |
3275 | ||
3276 | if (http->wused) | |
3277 | { | |
22c9029b MS |
3278 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3279 | ||
8ca02f3c | 3280 | if (httpFlushWrite(http) < 0) |
3281 | return (0); | |
3282 | } | |
3283 | ||
ef416fc2 | 3284 | /* |
3285 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3286 | */ | |
3287 | ||
38e73f87 | 3288 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3289 | } |
3290 | ||
3291 | ||
3292 | /* | |
3293 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3294 | * |
3295 | * This function is deprecated. Use the httpWrite2() function which can | |
3296 | * write more than 2GB of data. | |
3297 | * | |
53af7f21 | 3298 | * @deprecated@ @exclude all@ |
ef416fc2 | 3299 | */ |
ef55b745 | 3300 | |
ef416fc2 | 3301 | int /* O - Number of bytes written */ |
e6b1a6a9 | 3302 | httpWrite(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 3303 | const char *buffer, /* I - Buffer for data */ |
3304 | int length) /* I - Number of bytes to write */ | |
3305 | { | |
7e86f2f6 | 3306 | return ((int)httpWrite2(http, buffer, (size_t)length)); |
a4d04587 | 3307 | } |
3308 | ||
3309 | ||
3310 | /* | |
3311 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3312 | * |
8072030b | 3313 | * @since CUPS 1.2/macOS 10.5@ |
a4d04587 | 3314 | */ |
ef55b745 | 3315 | |
a4d04587 | 3316 | ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 3317 | httpWrite2(http_t *http, /* I - HTTP connection */ |
a4d04587 | 3318 | const char *buffer, /* I - Buffer for data */ |
3319 | size_t length) /* I - Number of bytes to write */ | |
3320 | { | |
3321 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3322 | |
3323 | ||
807315e6 | 3324 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
ef416fc2 | 3325 | |
3326 | /* | |
3327 | * Range check input... | |
3328 | */ | |
3329 | ||
a469f8a5 MS |
3330 | if (!http || !buffer) |
3331 | { | |
3332 | DEBUG_puts("1httpWrite2: Returning -1 due to bad input."); | |
ef416fc2 | 3333 | return (-1); |
a469f8a5 | 3334 | } |
ef416fc2 | 3335 | |
3336 | /* | |
3337 | * Mark activity on the connection... | |
3338 | */ | |
3339 | ||
3340 | http->activity = time(NULL); | |
3341 | ||
3342 | /* | |
3343 | * Buffer small writes for better performance... | |
3344 | */ | |
3345 | ||
a469f8a5 | 3346 | #ifdef HAVE_LIBZ |
d423d83d | 3347 | if (http->coding == _HTTP_CODING_GZIP || http->coding == _HTTP_CODING_DEFLATE) |
a469f8a5 MS |
3348 | { |
3349 | DEBUG_printf(("1httpWrite2: http->coding=%d", http->coding)); | |
3350 | ||
3351 | if (length == 0) | |
3352 | { | |
3353 | http_content_coding_finish(http); | |
3354 | bytes = 0; | |
3355 | } | |
3356 | else | |
3357 | { | |
291e4727 MS |
3358 | size_t slen; /* Bytes to write */ |
3359 | ssize_t sret; /* Bytes written */ | |
3360 | ||
a469f8a5 | 3361 | http->stream.next_in = (Bytef *)buffer; |
7e86f2f6 | 3362 | http->stream.avail_in = (uInt)length; |
a469f8a5 MS |
3363 | |
3364 | while (deflate(&(http->stream), Z_NO_FLUSH) == Z_OK) | |
3365 | { | |
546e096b MS |
3366 | DEBUG_printf(("1httpWrite2: avail_out=%d", http->stream.avail_out)); |
3367 | ||
3368 | if (http->stream.avail_out > 0) | |
3369 | continue; | |
3370 | ||
291e4727 | 3371 | slen = _HTTP_MAX_SBUFFER - http->stream.avail_out; |
a469f8a5 | 3372 | |
546e096b MS |
3373 | DEBUG_printf(("1httpWrite2: Writing intermediate chunk, len=%d", (int)slen)); |
3374 | ||
291e4727 MS |
3375 | if (slen > 0 && http->data_encoding == HTTP_ENCODING_CHUNKED) |
3376 | sret = http_write_chunk(http, (char *)http->sbuffer, slen); | |
3377 | else if (slen > 0) | |
3378 | sret = http_write(http, (char *)http->sbuffer, slen); | |
3379 | else | |
3380 | sret = 0; | |
a469f8a5 | 3381 | |
291e4727 MS |
3382 | if (sret < 0) |
3383 | { | |
3384 | DEBUG_puts("1httpWrite2: Unable to write, returning -1."); | |
3385 | return (-1); | |
a469f8a5 | 3386 | } |
291e4727 MS |
3387 | |
3388 | http->stream.next_out = (Bytef *)http->sbuffer; | |
3389 | http->stream.avail_out = (uInt)_HTTP_MAX_SBUFFER; | |
3390 | } | |
3391 | ||
291e4727 | 3392 | bytes = (ssize_t)length; |
a469f8a5 MS |
3393 | } |
3394 | } | |
3395 | else | |
3396 | #endif /* HAVE_LIBZ */ | |
ef416fc2 | 3397 | if (length > 0) |
3398 | { | |
7e86f2f6 | 3399 | if (http->wused && (length + (size_t)http->wused) > sizeof(http->wbuffer)) |
ef416fc2 | 3400 | { |
e07d4801 MS |
3401 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3402 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3403 | |
3404 | httpFlushWrite(http); | |
3405 | } | |
3406 | ||
7e86f2f6 | 3407 | if ((length + (size_t)http->wused) <= sizeof(http->wbuffer) && length < sizeof(http->wbuffer)) |
ef416fc2 | 3408 | { |
3409 | /* | |
3410 | * Write to buffer... | |
3411 | */ | |
3412 | ||
e07d4801 | 3413 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3414 | CUPS_LLCAST length)); |
ef416fc2 | 3415 | |
3416 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3417 | http->wused += (int)length; |
3418 | bytes = (ssize_t)length; | |
ef416fc2 | 3419 | } |
3420 | else | |
3421 | { | |
3422 | /* | |
3423 | * Otherwise write the data directly... | |
3424 | */ | |
3425 | ||
e07d4801 | 3426 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3427 | CUPS_LLCAST length)); |
ef416fc2 | 3428 | |
a469f8a5 | 3429 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
7e86f2f6 | 3430 | bytes = (ssize_t)http_write_chunk(http, buffer, length); |
ef416fc2 | 3431 | else |
7e86f2f6 | 3432 | bytes = (ssize_t)http_write(http, buffer, length); |
ef416fc2 | 3433 | |
e07d4801 | 3434 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3435 | CUPS_LLCAST bytes)); |
ef416fc2 | 3436 | } |
3437 | ||
a469f8a5 | 3438 | if (http->data_encoding == HTTP_ENCODING_LENGTH) |
ef416fc2 | 3439 | http->data_remaining -= bytes; |
3440 | } | |
3441 | else | |
3442 | bytes = 0; | |
3443 | ||
3444 | /* | |
3445 | * Handle end-of-request processing... | |
3446 | */ | |
3447 | ||
a469f8a5 MS |
3448 | if ((http->data_encoding == HTTP_ENCODING_CHUNKED && length == 0) || |
3449 | (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0)) | |
ef416fc2 | 3450 | { |
3451 | /* | |
3452 | * Finished with the transfer; unless we are sending POST or PUT | |
3453 | * data, go idle... | |
3454 | */ | |
3455 | ||
db8b865d | 3456 | #ifdef HAVE_LIBZ |
d423d83d | 3457 | if (http->coding == _HTTP_CODING_GZIP || http->coding == _HTTP_CODING_DEFLATE) |
db8b865d MS |
3458 | http_content_coding_finish(http); |
3459 | #endif /* HAVE_LIBZ */ | |
3460 | ||
ef416fc2 | 3461 | if (http->wused) |
a469f8a5 MS |
3462 | { |
3463 | if (httpFlushWrite(http) < 0) | |
3464 | return (-1); | |
3465 | } | |
ef416fc2 | 3466 | |
a469f8a5 | 3467 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) |
ef416fc2 | 3468 | { |
3469 | /* | |
3470 | * Send a 0-length chunk at the end of the request... | |
3471 | */ | |
3472 | ||
3473 | http_write(http, "0\r\n\r\n", 5); | |
3474 | ||
3475 | /* | |
3476 | * Reset the data state... | |
3477 | */ | |
3478 | ||
a469f8a5 | 3479 | http->data_encoding = HTTP_ENCODING_FIELDS; |
ef416fc2 | 3480 | http->data_remaining = 0; |
3481 | } | |
a469f8a5 MS |
3482 | |
3483 | if (http->state == HTTP_STATE_POST_RECV) | |
3484 | http->state ++; | |
dfc45c1b MS |
3485 | else if (http->state == HTTP_STATE_POST_SEND || |
3486 | http->state == HTTP_STATE_GET_SEND) | |
ad29aeab | 3487 | http->state = HTTP_STATE_WAITING; |
db8b865d | 3488 | else |
cb7f98ee | 3489 | http->state = HTTP_STATE_STATUS; |
a469f8a5 | 3490 | |
db8b865d | 3491 | DEBUG_printf(("2httpWrite2: Changed state to %s.", |
48bd1142 | 3492 | httpStateString(http->state))); |
ef416fc2 | 3493 | } |
3494 | ||
a469f8a5 MS |
3495 | DEBUG_printf(("1httpWrite2: Returning " CUPS_LLFMT ".", CUPS_LLCAST bytes)); |
3496 | ||
ef416fc2 | 3497 | return (bytes); |
3498 | } | |
3499 | ||
3500 | ||
a469f8a5 MS |
3501 | /* |
3502 | * 'httpWriteResponse()' - Write a HTTP response to a client connection. | |
3503 | * | |
8072030b | 3504 | * @since CUPS 1.7/macOS 10.9@ |
a469f8a5 MS |
3505 | */ |
3506 | ||
3507 | int /* O - 0 on success, -1 on error */ | |
3508 | httpWriteResponse(http_t *http, /* I - HTTP connection */ | |
3509 | http_status_t status) /* I - Status code */ | |
3510 | { | |
3511 | http_encoding_t old_encoding; /* Old data_encoding value */ | |
3512 | off_t old_remaining; /* Old data_remaining value */ | |
3513 | ||
3514 | ||
3515 | /* | |
3516 | * Range check input... | |
3517 | */ | |
3518 | ||
807315e6 | 3519 | DEBUG_printf(("httpWriteResponse(http=%p, status=%d)", (void *)http, status)); |
a469f8a5 MS |
3520 | |
3521 | if (!http || status < HTTP_STATUS_CONTINUE) | |
3522 | { | |
3523 | DEBUG_puts("1httpWriteResponse: Bad input."); | |
3524 | return (-1); | |
3525 | } | |
3526 | ||
3527 | /* | |
3528 | * Set the various standard fields if they aren't already... | |
3529 | */ | |
3530 | ||
3531 | if (!http->fields[HTTP_FIELD_DATE][0]) | |
3532 | httpSetField(http, HTTP_FIELD_DATE, httpGetDateString(time(NULL))); | |
3533 | ||
cb7f98ee | 3534 | if (status >= HTTP_STATUS_BAD_REQUEST && http->keep_alive) |
a469f8a5 | 3535 | { |
5ec1fd3d | 3536 | http->keep_alive = HTTP_KEEPALIVE_OFF; |
a469f8a5 MS |
3537 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, ""); |
3538 | } | |
3539 | ||
3540 | if (http->version == HTTP_VERSION_1_1) | |
3541 | { | |
3542 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3543 | { | |
3544 | if (http->keep_alive) | |
3545 | httpSetField(http, HTTP_FIELD_CONNECTION, "Keep-Alive"); | |
3546 | else | |
3547 | httpSetField(http, HTTP_FIELD_CONNECTION, "close"); | |
3548 | } | |
3549 | ||
3550 | if (http->keep_alive && !http->fields[HTTP_FIELD_KEEP_ALIVE][0]) | |
3551 | httpSetField(http, HTTP_FIELD_KEEP_ALIVE, "timeout=10"); | |
3552 | } | |
3553 | ||
3554 | #ifdef HAVE_SSL | |
e200616a MS |
3555 | if (status == HTTP_STATUS_UPGRADE_REQUIRED || |
3556 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3557 | { |
3558 | if (!http->fields[HTTP_FIELD_CONNECTION][0]) | |
3559 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3560 | ||
3561 | if (!http->fields[HTTP_FIELD_UPGRADE][0]) | |
3562 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); | |
e200616a MS |
3563 | |
3564 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) | |
3565 | httpSetField(http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 MS |
3566 | } |
3567 | #endif /* HAVE_SSL */ | |
3568 | ||
3569 | if (!http->server) | |
c1420c87 MS |
3570 | httpSetField(http, HTTP_FIELD_SERVER, |
3571 | http->default_server ? http->default_server : CUPS_MINIMAL); | |
a469f8a5 | 3572 | |
a469f8a5 MS |
3573 | /* |
3574 | * Set the Accept-Encoding field if it isn't already... | |
3575 | */ | |
3576 | ||
3577 | if (!http->accept_encoding) | |
c1420c87 MS |
3578 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, |
3579 | http->default_accept_encoding ? http->default_accept_encoding : | |
3580 | #ifdef HAVE_LIBZ | |
3581 | "gzip, deflate, identity"); | |
3582 | #else | |
3583 | "identity"); | |
a469f8a5 MS |
3584 | #endif /* HAVE_LIBZ */ |
3585 | ||
3586 | /* | |
3587 | * Send the response header... | |
3588 | */ | |
3589 | ||
3590 | old_encoding = http->data_encoding; | |
3591 | old_remaining = http->data_remaining; | |
3592 | http->data_encoding = HTTP_ENCODING_FIELDS; | |
3593 | ||
3594 | if (httpPrintf(http, "HTTP/%d.%d %d %s\r\n", http->version / 100, | |
3595 | http->version % 100, (int)status, httpStatus(status)) < 0) | |
3596 | { | |
3597 | http->status = HTTP_STATUS_ERROR; | |
3598 | return (-1); | |
3599 | } | |
3600 | ||
3601 | if (status != HTTP_STATUS_CONTINUE) | |
3602 | { | |
3603 | /* | |
3604 | * 100 Continue doesn't have the rest of the response headers... | |
3605 | */ | |
3606 | ||
3607 | int i; /* Looping var */ | |
3608 | const char *value; /* Field value */ | |
3609 | ||
3610 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3611 | { | |
3612 | if ((value = httpGetField(http, i)) != NULL && *value) | |
3613 | { | |
3614 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) | |
3615 | { | |
3616 | http->status = HTTP_STATUS_ERROR; | |
3617 | return (-1); | |
3618 | } | |
3619 | } | |
3620 | } | |
3621 | ||
3622 | if (http->cookie) | |
3623 | { | |
6c2b2b19 MS |
3624 | if (strchr(http->cookie, ';')) |
3625 | { | |
3626 | if (httpPrintf(http, "Set-Cookie: %s\r\n", http->cookie) < 1) | |
3627 | { | |
3628 | http->status = HTTP_STATUS_ERROR; | |
3629 | return (-1); | |
3630 | } | |
3631 | } | |
3632 | else if (httpPrintf(http, "Set-Cookie: %s; path=/; httponly;%s\r\n", http->cookie, http->tls ? " secure;" : "") < 1) | |
a469f8a5 | 3633 | { |
cb7f98ee | 3634 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3635 | return (-1); |
3636 | } | |
3637 | } | |
241474b0 MS |
3638 | |
3639 | /* | |
3640 | * "Click-jacking" defense (STR #4492)... | |
3641 | */ | |
3642 | ||
3643 | if (httpPrintf(http, "X-Frame-Options: DENY\r\n" | |
3644 | "Content-Security-Policy: frame-ancestors 'none'\r\n") < 1) | |
3645 | { | |
3646 | http->status = HTTP_STATUS_ERROR; | |
3647 | return (-1); | |
3648 | } | |
a469f8a5 MS |
3649 | } |
3650 | ||
3651 | if (httpWrite2(http, "\r\n", 2) < 2) | |
3652 | { | |
cb7f98ee | 3653 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3654 | return (-1); |
3655 | } | |
3656 | ||
3657 | if (httpFlushWrite(http) < 0) | |
3658 | { | |
cb7f98ee | 3659 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3660 | return (-1); |
3661 | } | |
3662 | ||
e200616a MS |
3663 | if (status == HTTP_STATUS_CONTINUE || |
3664 | status == HTTP_STATUS_SWITCHING_PROTOCOLS) | |
a469f8a5 MS |
3665 | { |
3666 | /* | |
3667 | * Restore the old data_encoding and data_length values... | |
3668 | */ | |
3669 | ||
3670 | http->data_encoding = old_encoding; | |
3671 | http->data_remaining = old_remaining; | |
3672 | ||
3673 | if (old_remaining <= INT_MAX) | |
3674 | http->_data_remaining = (int)old_remaining; | |
3675 | else | |
3676 | http->_data_remaining = INT_MAX; | |
3677 | } | |
3678 | else if (http->state == HTTP_STATE_OPTIONS || | |
3679 | http->state == HTTP_STATE_HEAD || | |
3680 | http->state == HTTP_STATE_PUT || | |
3681 | http->state == HTTP_STATE_TRACE || | |
cb7f98ee MS |
3682 | http->state == HTTP_STATE_CONNECT || |
3683 | http->state == HTTP_STATE_STATUS) | |
a469f8a5 MS |
3684 | { |
3685 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
48bd1142 | 3686 | "was %s.", httpStateString(http->state))); |
a469f8a5 MS |
3687 | http->state = HTTP_STATE_WAITING; |
3688 | } | |
3689 | else | |
3690 | { | |
3691 | /* | |
3692 | * Force data_encoding and data_length to be set according to the response | |
3693 | * headers... | |
3694 | */ | |
3695 | ||
3696 | http_set_length(http); | |
3697 | ||
dfc45c1b MS |
3698 | if (http->data_encoding == HTTP_ENCODING_LENGTH && http->data_remaining == 0) |
3699 | { | |
3700 | DEBUG_printf(("1httpWriteResponse: Resetting state to HTTP_STATE_WAITING, " | |
3701 | "was %s.", httpStateString(http->state))); | |
3702 | http->state = HTTP_STATE_WAITING; | |
3703 | return (0); | |
3704 | } | |
3705 | ||
a2f30a72 MS |
3706 | if (http->state == HTTP_STATE_POST_RECV || http->state == HTTP_STATE_GET) |
3707 | http->state ++; | |
3708 | ||
db8b865d | 3709 | #ifdef HAVE_LIBZ |
a469f8a5 MS |
3710 | /* |
3711 | * Then start any content encoding... | |
3712 | */ | |
3713 | ||
3714 | DEBUG_puts("1httpWriteResponse: Calling http_content_coding_start."); | |
3715 | http_content_coding_start(http, | |
3716 | httpGetField(http, HTTP_FIELD_CONTENT_ENCODING)); | |
db8b865d | 3717 | #endif /* HAVE_LIBZ */ |
dfc45c1b | 3718 | |
a469f8a5 MS |
3719 | } |
3720 | ||
3721 | return (0); | |
3722 | } | |
3723 | ||
3724 | ||
2c85b752 | 3725 | #ifdef HAVE_LIBZ |
411affcf | 3726 | /* |
2c85b752 | 3727 | * 'http_content_coding_finish()' - Finish doing any content encoding. |
411affcf | 3728 | */ |
3729 | ||
2c85b752 MS |
3730 | static void |
3731 | http_content_coding_finish( | |
3732 | http_t *http) /* I - HTTP connection */ | |
a469f8a5 | 3733 | { |
291e4727 MS |
3734 | int zerr; /* Compression status */ |
3735 | Byte dummy[1]; /* Dummy read buffer */ | |
3736 | size_t bytes; /* Number of bytes to write */ | |
a469f8a5 MS |
3737 | |
3738 | ||
807315e6 | 3739 | DEBUG_printf(("http_content_coding_finish(http=%p)", (void *)http)); |
546e096b MS |
3740 | DEBUG_printf(("1http_content_coding_finishing: http->coding=%d", http->coding)); |
3741 | ||
a469f8a5 MS |
3742 | switch (http->coding) |
3743 | { | |
3744 | case _HTTP_CODING_DEFLATE : | |
3745 | case _HTTP_CODING_GZIP : | |
d2263221 MS |
3746 | http->stream.next_in = dummy; |
3747 | http->stream.avail_in = 0; | |
3748 | ||
a469f8a5 MS |
3749 | do |
3750 | { | |
291e4727 MS |
3751 | zerr = deflate(&(http->stream), Z_FINISH); |
3752 | bytes = _HTTP_MAX_SBUFFER - http->stream.avail_out; | |
a469f8a5 | 3753 | |
546e096b MS |
3754 | if (bytes > 0) |
3755 | { | |
3756 | DEBUG_printf(("1http_content_coding_finish: Writing trailing chunk, len=%d", (int)bytes)); | |
3757 | ||
3758 | if (http->data_encoding == HTTP_ENCODING_CHUNKED) | |
3759 | http_write_chunk(http, (char *)http->sbuffer, bytes); | |
3760 | else | |
3761 | http_write(http, (char *)http->sbuffer, bytes); | |
3762 | } | |
3763 | ||
3764 | http->stream.next_out = (Bytef *)http->sbuffer; | |
3765 | http->stream.avail_out = (uInt)_HTTP_MAX_SBUFFER; | |
3766 | } | |
a469f8a5 MS |
3767 | while (zerr == Z_OK); |
3768 | ||
3769 | deflateEnd(&(http->stream)); | |
3770 | ||
291e4727 MS |
3771 | free(http->sbuffer); |
3772 | http->sbuffer = NULL; | |
3773 | ||
a469f8a5 MS |
3774 | if (http->wused) |
3775 | httpFlushWrite(http); | |
3776 | break; | |
3777 | ||
3778 | case _HTTP_CODING_INFLATE : | |
3779 | case _HTTP_CODING_GUNZIP : | |
3780 | inflateEnd(&(http->stream)); | |
291e4727 MS |
3781 | free(http->sbuffer); |
3782 | http->sbuffer = NULL; | |
a469f8a5 MS |
3783 | break; |
3784 | ||
3785 | default : | |
3786 | break; | |
3787 | } | |
3788 | ||
3789 | http->coding = _HTTP_CODING_IDENTITY; | |
3790 | } | |
3791 | ||
3792 | ||
3793 | /* | |
3794 | * 'http_content_coding_start()' - Start doing content encoding. | |
3795 | */ | |
3796 | ||
3797 | static void | |
3798 | http_content_coding_start( | |
3799 | http_t *http, /* I - HTTP connection */ | |
3800 | const char *value) /* I - Value of Content-Encoding */ | |
3801 | { | |
3802 | int zerr; /* Error/status */ | |
3803 | _http_coding_t coding; /* Content coding value */ | |
3804 | ||
3805 | ||
807315e6 | 3806 | DEBUG_printf(("http_content_coding_start(http=%p, value=\"%s\")", (void *)http, value)); |
a469f8a5 MS |
3807 | |
3808 | if (http->coding != _HTTP_CODING_IDENTITY) | |
3809 | { | |
3810 | DEBUG_printf(("1http_content_coding_start: http->coding already %d.", | |
3811 | http->coding)); | |
3812 | return; | |
3813 | } | |
3814 | else if (!strcmp(value, "x-gzip") || !strcmp(value, "gzip")) | |
3815 | { | |
cb7f98ee MS |
3816 | if (http->state == HTTP_STATE_GET_SEND || |
3817 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3818 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_GZIP : |
3819 | _HTTP_CODING_GUNZIP; | |
cb7f98ee MS |
3820 | else if (http->state == HTTP_STATE_POST_RECV || |
3821 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3822 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_GZIP : |
3823 | _HTTP_CODING_GUNZIP; | |
3824 | else | |
3825 | { | |
3826 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3827 | return; | |
3828 | } | |
3829 | } | |
3830 | else if (!strcmp(value, "x-deflate") || !strcmp(value, "deflate")) | |
3831 | { | |
cb7f98ee MS |
3832 | if (http->state == HTTP_STATE_GET_SEND || |
3833 | http->state == HTTP_STATE_POST_SEND) | |
a469f8a5 MS |
3834 | coding = http->mode == _HTTP_MODE_SERVER ? _HTTP_CODING_DEFLATE : |
3835 | _HTTP_CODING_INFLATE; | |
cb7f98ee MS |
3836 | else if (http->state == HTTP_STATE_POST_RECV || |
3837 | http->state == HTTP_STATE_PUT_RECV) | |
a469f8a5 MS |
3838 | coding = http->mode == _HTTP_MODE_CLIENT ? _HTTP_CODING_DEFLATE : |
3839 | _HTTP_CODING_INFLATE; | |
3840 | else | |
3841 | { | |
3842 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3843 | return; | |
3844 | } | |
3845 | } | |
3846 | else | |
3847 | { | |
3848 | DEBUG_puts("1http_content_coding_start: Not doing content coding."); | |
3849 | return; | |
3850 | } | |
3851 | ||
3852 | memset(&(http->stream), 0, sizeof(http->stream)); | |
3853 | ||
3854 | switch (coding) | |
3855 | { | |
3856 | case _HTTP_CODING_DEFLATE : | |
3857 | case _HTTP_CODING_GZIP : | |
3858 | if (http->wused) | |
3859 | httpFlushWrite(http); | |
3860 | ||
291e4727 MS |
3861 | if ((http->sbuffer = malloc(_HTTP_MAX_SBUFFER)) == NULL) |
3862 | { | |
3863 | http->status = HTTP_STATUS_ERROR; | |
3864 | http->error = errno; | |
3865 | return; | |
3866 | } | |
3867 | ||
db8b865d MS |
3868 | /* |
3869 | * Window size for compression is 11 bits - optimal based on PWG Raster | |
3870 | * sample files on pwg.org. -11 is raw deflate, 27 is gzip, per ZLIB | |
3871 | * documentation. | |
3872 | */ | |
3873 | ||
a469f8a5 MS |
3874 | if ((zerr = deflateInit2(&(http->stream), Z_DEFAULT_COMPRESSION, |
3875 | Z_DEFLATED, | |
db8b865d | 3876 | coding == _HTTP_CODING_DEFLATE ? -11 : 27, 7, |
a469f8a5 MS |
3877 | Z_DEFAULT_STRATEGY)) < Z_OK) |
3878 | { | |
cb7f98ee | 3879 | http->status = HTTP_STATUS_ERROR; |
a469f8a5 MS |
3880 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3881 | return; | |
3882 | } | |
546e096b MS |
3883 | |
3884 | http->stream.next_out = (Bytef *)http->sbuffer; | |
3885 | http->stream.avail_out = (uInt)_HTTP_MAX_SBUFFER; | |
a469f8a5 MS |
3886 | break; |
3887 | ||
3888 | case _HTTP_CODING_INFLATE : | |
3889 | case _HTTP_CODING_GUNZIP : | |
291e4727 | 3890 | if ((http->sbuffer = malloc(_HTTP_MAX_SBUFFER)) == NULL) |
a469f8a5 | 3891 | { |
cb7f98ee | 3892 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa | 3893 | http->error = errno; |
a469f8a5 MS |
3894 | return; |
3895 | } | |
0fa6c7fa | 3896 | |
db8b865d MS |
3897 | /* |
3898 | * Window size for decompression is up to 15 bits (maximum supported). | |
3899 | * -15 is raw inflate, 31 is gunzip, per ZLIB documentation. | |
3900 | */ | |
3901 | ||
0fa6c7fa | 3902 | if ((zerr = inflateInit2(&(http->stream), |
db8b865d | 3903 | coding == _HTTP_CODING_INFLATE ? -15 : 31)) |
0fa6c7fa MS |
3904 | < Z_OK) |
3905 | { | |
291e4727 MS |
3906 | free(http->sbuffer); |
3907 | http->sbuffer = NULL; | |
cb7f98ee | 3908 | http->status = HTTP_STATUS_ERROR; |
0fa6c7fa MS |
3909 | http->error = zerr == Z_MEM_ERROR ? ENOMEM : EINVAL; |
3910 | return; | |
3911 | } | |
3912 | ||
3913 | http->stream.avail_in = 0; | |
291e4727 | 3914 | http->stream.next_in = http->sbuffer; |
a469f8a5 MS |
3915 | break; |
3916 | ||
3917 | default : | |
3918 | break; | |
3919 | } | |
3920 | ||
3921 | http->coding = coding; | |
3922 | ||
3923 | DEBUG_printf(("1http_content_coding_start: http->coding now %d.", | |
3924 | http->coding)); | |
3925 | } | |
3926 | #endif /* HAVE_LIBZ */ | |
3927 | ||
3928 | ||
db8b865d MS |
3929 | /* |
3930 | * 'http_create()' - Create an unconnected HTTP connection. | |
3931 | */ | |
3932 | ||
3933 | static http_t * /* O - HTTP connection */ | |
3934 | http_create( | |
3935 | const char *host, /* I - Hostname */ | |
3936 | int port, /* I - Port number */ | |
98d88c8d | 3937 | http_addrlist_t *addrlist, /* I - Address list or @code NULL@ */ |
db8b865d MS |
3938 | int family, /* I - Address family or AF_UNSPEC */ |
3939 | http_encryption_t encryption, /* I - Encryption to use */ | |
3940 | int blocking, /* I - 1 for blocking mode */ | |
3941 | _http_mode_t mode) /* I - _HTTP_MODE_CLIENT or _SERVER */ | |
3942 | { | |
3943 | http_t *http; /* New HTTP connection */ | |
3944 | char service[255]; /* Service name */ | |
3945 | http_addrlist_t *myaddrlist = NULL; /* My address list */ | |
3946 | ||
3947 | ||
807315e6 | 3948 | 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 |
3949 | |
3950 | if (!host && mode == _HTTP_MODE_CLIENT) | |
3951 | return (NULL); | |
3952 | ||
3953 | httpInitialize(); | |
3954 | ||
3955 | /* | |
3956 | * Lookup the host... | |
3957 | */ | |
3958 | ||
3959 | if (addrlist) | |
3960 | { | |
3961 | myaddrlist = httpAddrCopyList(addrlist); | |
3962 | } | |
3963 | else | |
3964 | { | |
3965 | snprintf(service, sizeof(service), "%d", port); | |
3966 | ||
3967 | myaddrlist = httpAddrGetList(host, family, service); | |
3968 | } | |
3969 | ||
3970 | if (!myaddrlist) | |
3971 | return (NULL); | |
3972 | ||
3973 | /* | |
3974 | * Allocate memory for the structure... | |
3975 | */ | |
3976 | ||
3977 | if ((http = calloc(sizeof(http_t), 1)) == NULL) | |
3978 | { | |
cb7f98ee | 3979 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(errno), 0); |
db8b865d MS |
3980 | httpAddrFreeList(addrlist); |
3981 | return (NULL); | |
3982 | } | |
3983 | ||
3984 | /* | |
3985 | * Initialize the HTTP data... | |
3986 | */ | |
3987 | ||
3988 | http->mode = mode; | |
3989 | http->activity = time(NULL); | |
3990 | http->addrlist = myaddrlist; | |
3991 | http->blocking = blocking; | |
3992 | http->fd = -1; | |
3993 | #ifdef HAVE_GSSAPI | |
3994 | http->gssctx = GSS_C_NO_CONTEXT; | |
3995 | http->gssname = GSS_C_NO_NAME; | |
3996 | #endif /* HAVE_GSSAPI */ | |
cb7f98ee | 3997 | http->status = HTTP_STATUS_CONTINUE; |
db8b865d MS |
3998 | http->version = HTTP_VERSION_1_1; |
3999 | ||
4000 | if (host) | |
4001 | strlcpy(http->hostname, host, sizeof(http->hostname)); | |
4002 | ||
4003 | if (port == 443) /* Always use encryption for https */ | |
4004 | http->encryption = HTTP_ENCRYPTION_ALWAYS; | |
4005 | else | |
4006 | http->encryption = encryption; | |
4007 | ||
4008 | http_set_wait(http); | |
4009 | ||
4010 | /* | |
4011 | * Return the new structure... | |
4012 | */ | |
4013 | ||
4014 | return (http); | |
4015 | } | |
4016 | ||
db8b865d | 4017 | |
ae71f5de MS |
4018 | #ifdef DEBUG |
4019 | /* | |
4020 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
4021 | */ | |
4022 | ||
4023 | static void | |
4024 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
4025 | const char *buffer, /* I - Buffer to dump */ | |
4026 | int bytes) /* I - Bytes to dump */ | |
4027 | { | |
4028 | int i, j, /* Looping vars */ | |
4029 | ch; /* Current character */ | |
4030 | char line[255], /* Line buffer */ | |
4031 | *start, /* Start of line after prefix */ | |
4032 | *ptr; /* Pointer into line */ | |
4033 | ||
4034 | ||
f11a948a | 4035 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
4036 | return; |
4037 | ||
83e08001 | 4038 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 4039 | |
f11a948a | 4040 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
4041 | start = line + strlen(line); |
4042 | ||
4043 | for (i = 0; i < bytes; i += 16) | |
4044 | { | |
4045 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
341efe62 | 4046 | snprintf(ptr, 3, "%02X", buffer[i + j] & 255); |
ae71f5de MS |
4047 | |
4048 | while (j < 16) | |
4049 | { | |
5a9febac | 4050 | memcpy(ptr, " ", 3); |
ae71f5de MS |
4051 | ptr += 2; |
4052 | j ++; | |
4053 | } | |
4054 | ||
5a9febac | 4055 | memcpy(ptr, " ", 3); |
ae71f5de MS |
4056 | ptr += 2; |
4057 | ||
4058 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
4059 | { | |
4060 | ch = buffer[i + j] & 255; | |
4061 | ||
4062 | if (ch < ' ' || ch >= 127) | |
4063 | ch = '.'; | |
4064 | ||
7e86f2f6 | 4065 | *ptr++ = (char)ch; |
ae71f5de MS |
4066 | } |
4067 | ||
4068 | *ptr = '\0'; | |
4069 | DEBUG_puts(line); | |
4070 | } | |
4071 | } | |
4072 | #endif /* DEBUG */ | |
4073 | ||
4074 | ||
0fa6c7fa MS |
4075 | /* |
4076 | * 'http_read()' - Read a buffer from a HTTP connection. | |
4077 | * | |
4078 | * This function does the low-level read from the socket, retrying and timing | |
4079 | * out as needed. | |
4080 | */ | |
4081 | ||
4082 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4083 | http_read(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4084 | char *buffer, /* I - Buffer */ |
4085 | size_t length) /* I - Maximum bytes to read */ | |
4086 | { | |
4087 | ssize_t bytes; /* Bytes read */ | |
4088 | ||
4089 | ||
807315e6 | 4090 | DEBUG_printf(("http_read(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
0fa6c7fa MS |
4091 | |
4092 | if (!http->blocking) | |
4093 | { | |
4094 | while (!httpWait(http, http->wait_value)) | |
4095 | { | |
4096 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4097 | continue; | |
4098 | ||
4099 | DEBUG_puts("2http_read: Timeout."); | |
4100 | return (0); | |
4101 | } | |
4102 | } | |
4103 | ||
4104 | DEBUG_printf(("2http_read: Reading %d bytes into buffer.", (int)length)); | |
4105 | ||
4106 | do | |
4107 | { | |
4108 | #ifdef HAVE_SSL | |
4109 | if (http->tls) | |
25731360 | 4110 | bytes = _httpTLSRead(http, buffer, (int)length); |
0fa6c7fa MS |
4111 | else |
4112 | #endif /* HAVE_SSL */ | |
4113 | bytes = recv(http->fd, buffer, length, 0); | |
4114 | ||
4115 | if (bytes < 0) | |
4116 | { | |
4117 | #ifdef WIN32 | |
4118 | if (WSAGetLastError() != WSAEINTR) | |
4119 | { | |
4120 | http->error = WSAGetLastError(); | |
4121 | return (-1); | |
4122 | } | |
4123 | else if (WSAGetLastError() == WSAEWOULDBLOCK) | |
4124 | { | |
4125 | if (!http->timeout_cb || | |
4126 | !(*http->timeout_cb)(http, http->timeout_data)) | |
4127 | { | |
4128 | http->error = WSAEWOULDBLOCK; | |
4129 | return (-1); | |
4130 | } | |
4131 | } | |
4132 | #else | |
4133 | DEBUG_printf(("2http_read: %s", strerror(errno))); | |
4134 | ||
4135 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
4136 | { | |
4137 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
4138 | { | |
4139 | http->error = errno; | |
4140 | return (-1); | |
4141 | } | |
4142 | else if (!http->timeout_cb && errno != EAGAIN) | |
4143 | { | |
4144 | http->error = errno; | |
4145 | return (-1); | |
4146 | } | |
4147 | } | |
4148 | else if (errno != EINTR) | |
4149 | { | |
4150 | http->error = errno; | |
4151 | return (-1); | |
4152 | } | |
4153 | #endif /* WIN32 */ | |
4154 | } | |
4155 | } | |
4156 | while (bytes < 0); | |
4157 | ||
4158 | DEBUG_printf(("2http_read: Read " CUPS_LLFMT " bytes into buffer.", | |
4159 | CUPS_LLCAST bytes)); | |
4160 | #ifdef DEBUG | |
4161 | if (bytes > 0) | |
6961465f | 4162 | http_debug_hex("http_read", buffer, (int)bytes); |
0fa6c7fa MS |
4163 | #endif /* DEBUG */ |
4164 | ||
4165 | if (bytes < 0) | |
4166 | { | |
4167 | #ifdef WIN32 | |
4168 | if (WSAGetLastError() == WSAEINTR) | |
4169 | bytes = 0; | |
4170 | else | |
4171 | http->error = WSAGetLastError(); | |
4172 | #else | |
4173 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) | |
4174 | bytes = 0; | |
4175 | else | |
4176 | http->error = errno; | |
4177 | #endif /* WIN32 */ | |
4178 | } | |
4179 | else if (bytes == 0) | |
4180 | { | |
4181 | http->error = EPIPE; | |
4182 | return (0); | |
4183 | } | |
4184 | ||
4185 | return (bytes); | |
4186 | } | |
4187 | ||
4188 | ||
4189 | /* | |
4190 | * 'http_read_buffered()' - Do a buffered read from a HTTP connection. | |
4191 | * | |
4192 | * This function reads data from the HTTP buffer or from the socket, as needed. | |
4193 | */ | |
4194 | ||
4195 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4196 | http_read_buffered(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4197 | char *buffer, /* I - Buffer */ |
4198 | size_t length) /* I - Maximum bytes to read */ | |
4199 | { | |
4200 | ssize_t bytes; /* Bytes read */ | |
4201 | ||
4202 | ||
807315e6 | 4203 | 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 |
4204 | |
4205 | if (http->used > 0) | |
4206 | { | |
4207 | if (length > (size_t)http->used) | |
7e86f2f6 | 4208 | bytes = (ssize_t)http->used; |
0fa6c7fa | 4209 | else |
7e86f2f6 | 4210 | bytes = (ssize_t)length; |
0fa6c7fa MS |
4211 | |
4212 | DEBUG_printf(("2http_read: Grabbing %d bytes from input buffer.", | |
4213 | (int)bytes)); | |
4214 | ||
07623986 | 4215 | memcpy(buffer, http->buffer, (size_t)bytes); |
0fa6c7fa MS |
4216 | http->used -= (int)bytes; |
4217 | ||
4218 | if (http->used > 0) | |
07623986 | 4219 | memmove(http->buffer, http->buffer + bytes, (size_t)http->used); |
0fa6c7fa MS |
4220 | } |
4221 | else | |
4222 | bytes = http_read(http, buffer, length); | |
4223 | ||
4224 | return (bytes); | |
4225 | } | |
4226 | ||
4227 | ||
4228 | /* | |
4229 | * 'http_read_chunk()' - Read a chunk from a HTTP connection. | |
4230 | * | |
4231 | * This function reads and validates the chunk length, then does a buffered read | |
4232 | * returning the number of bytes placed in the buffer. | |
4233 | */ | |
4234 | ||
4235 | static ssize_t /* O - Number of bytes read or -1 on error */ | |
e6b1a6a9 | 4236 | http_read_chunk(http_t *http, /* I - HTTP connection */ |
0fa6c7fa MS |
4237 | char *buffer, /* I - Buffer */ |
4238 | size_t length) /* I - Maximum bytes to read */ | |
4239 | { | |
807315e6 | 4240 | DEBUG_printf(("http_read_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
0fa6c7fa MS |
4241 | |
4242 | if (http->data_remaining <= 0) | |
4243 | { | |
4244 | char len[32]; /* Length string */ | |
4245 | ||
4246 | if (!httpGets(len, sizeof(len), http)) | |
4247 | { | |
4248 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4249 | return (0); | |
4250 | } | |
4251 | ||
4252 | if (!len[0]) | |
4253 | { | |
4254 | DEBUG_puts("1http_read_chunk: Blank chunk length, trying again..."); | |
4255 | if (!httpGets(len, sizeof(len), http)) | |
4256 | { | |
4257 | DEBUG_puts("1http_read_chunk: Could not get chunk length."); | |
4258 | return (0); | |
4259 | } | |
4260 | } | |
4261 | ||
4262 | http->data_remaining = strtoll(len, NULL, 16); | |
4263 | ||
4264 | if (http->data_remaining < 0) | |
4265 | { | |
4266 | DEBUG_printf(("1http_read_chunk: Negative chunk length \"%s\" (" | |
4267 | CUPS_LLFMT ")", len, CUPS_LLCAST http->data_remaining)); | |
4268 | return (0); | |
4269 | } | |
4270 | ||
4271 | DEBUG_printf(("2http_read_chunk: Got chunk length \"%s\" (" CUPS_LLFMT ")", | |
4272 | len, CUPS_LLCAST http->data_remaining)); | |
4273 | ||
4274 | if (http->data_remaining == 0) | |
4275 | { | |
4276 | /* | |
4277 | * 0-length chunk, grab trailing blank line... | |
4278 | */ | |
4279 | ||
4280 | httpGets(len, sizeof(len), http); | |
4281 | } | |
4282 | } | |
4283 | ||
4284 | DEBUG_printf(("2http_read_chunk: data_remaining=" CUPS_LLFMT, | |
4285 | CUPS_LLCAST http->data_remaining)); | |
4286 | ||
4287 | if (http->data_remaining <= 0) | |
4288 | return (0); | |
4289 | else if (length > (size_t)http->data_remaining) | |
4290 | length = (size_t)http->data_remaining; | |
4291 | ||
4292 | return (http_read_buffered(http, buffer, length)); | |
4293 | } | |
4294 | ||
4295 | ||
ef416fc2 | 4296 | /* |
4297 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
4298 | */ | |
4299 | ||
a469f8a5 | 4300 | static int /* O - 0 on success, non-zero on error */ |
e6b1a6a9 | 4301 | http_send(http_t *http, /* I - HTTP connection */ |
a469f8a5 MS |
4302 | http_state_t request, /* I - Request code */ |
4303 | const char *uri) /* I - URI */ | |
ef416fc2 | 4304 | { |
a469f8a5 MS |
4305 | int i; /* Looping var */ |
4306 | char buf[1024]; /* Encoded URI buffer */ | |
4307 | const char *value; /* Field value */ | |
4308 | static const char * const codes[] = /* Request code strings */ | |
4309 | { | |
ef416fc2 | 4310 | NULL, |
4311 | "OPTIONS", | |
4312 | "GET", | |
4313 | NULL, | |
4314 | "HEAD", | |
4315 | "POST", | |
4316 | NULL, | |
4317 | NULL, | |
4318 | "PUT", | |
4319 | NULL, | |
4320 | "DELETE", | |
4321 | "TRACE", | |
a469f8a5 MS |
4322 | "CLOSE", |
4323 | NULL, | |
4324 | NULL | |
ef416fc2 | 4325 | }; |
ef416fc2 | 4326 | |
4327 | ||
807315e6 | 4328 | DEBUG_printf(("4http_send(http=%p, request=HTTP_%s, uri=\"%s\")", (void *)http, codes[request], uri)); |
ef416fc2 | 4329 | |
4330 | if (http == NULL || uri == NULL) | |
4331 | return (-1); | |
4332 | ||
4333 | /* | |
4334 | * Set the User-Agent field if it isn't already... | |
4335 | */ | |
4336 | ||
4337 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
db8b865d MS |
4338 | { |
4339 | if (http->default_user_agent) | |
4340 | httpSetField(http, HTTP_FIELD_USER_AGENT, http->default_user_agent); | |
4341 | else | |
4342 | httpSetField(http, HTTP_FIELD_USER_AGENT, cupsUserAgent()); | |
4343 | } | |
ef416fc2 | 4344 | |
a469f8a5 MS |
4345 | /* |
4346 | * Set the Accept-Encoding field if it isn't already... | |
4347 | */ | |
4348 | ||
c1420c87 MS |
4349 | if (!http->accept_encoding && http->default_accept_encoding) |
4350 | httpSetField(http, HTTP_FIELD_ACCEPT_ENCODING, | |
4351 | http->default_accept_encoding); | |
a469f8a5 | 4352 | |
ef416fc2 | 4353 | /* |
4354 | * Encode the URI as needed... | |
4355 | */ | |
4356 | ||
839a51c8 | 4357 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 4358 | |
4359 | /* | |
4360 | * See if we had an error the last time around; if so, reconnect... | |
4361 | */ | |
4362 | ||
cb7f98ee MS |
4363 | if (http->fd < 0 || http->status == HTTP_STATUS_ERROR || |
4364 | http->status >= HTTP_STATUS_BAD_REQUEST) | |
4365 | { | |
4366 | DEBUG_printf(("5http_send: Reconnecting, fd=%d, status=%d, tls_upgrade=%d", | |
4367 | http->fd, http->status, http->tls_upgrade)); | |
4368 | ||
4369 | if (httpReconnect2(http, 30000, NULL)) | |
fa73b229 | 4370 | return (-1); |
cb7f98ee | 4371 | } |
ef416fc2 | 4372 | |
d09495fa | 4373 | /* |
4374 | * Flush any written data that is pending... | |
4375 | */ | |
4376 | ||
4377 | if (http->wused) | |
536bc2c6 MS |
4378 | { |
4379 | if (httpFlushWrite(http) < 0) | |
cb7f98ee | 4380 | if (httpReconnect2(http, 30000, NULL)) |
536bc2c6 MS |
4381 | return (-1); |
4382 | } | |
d09495fa | 4383 | |
ef416fc2 | 4384 | /* |
4385 | * Send the request header... | |
4386 | */ | |
4387 | ||
d09495fa | 4388 | http->state = request; |
a469f8a5 | 4389 | http->data_encoding = HTTP_ENCODING_FIELDS; |
d09495fa | 4390 | |
cb7f98ee | 4391 | if (request == HTTP_STATE_POST || request == HTTP_STATE_PUT) |
ef416fc2 | 4392 | http->state ++; |
4393 | ||
cb7f98ee | 4394 | http->status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 4395 | |
4396 | #ifdef HAVE_SSL | |
cb7f98ee | 4397 | if (http->encryption == HTTP_ENCRYPTION_REQUIRED && !http->tls) |
ef416fc2 | 4398 | { |
4399 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
a469f8a5 | 4400 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4401 | } |
4402 | #endif /* HAVE_SSL */ | |
4403 | ||
4404 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
4405 | { | |
cb7f98ee | 4406 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4407 | return (-1); |
4408 | } | |
4409 | ||
4410 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
a469f8a5 | 4411 | if ((value = httpGetField(http, i)) != NULL && *value) |
ef416fc2 | 4412 | { |
cb7f98ee | 4413 | DEBUG_printf(("5http_send: %s: %s", http_fields[i], value)); |
ef416fc2 | 4414 | |
37e7e6e0 MS |
4415 | if (i == HTTP_FIELD_HOST) |
4416 | { | |
a469f8a5 MS |
4417 | if (httpPrintf(http, "Host: %s:%d\r\n", value, |
4418 | httpAddrPort(http->hostaddr)) < 1) | |
37e7e6e0 | 4419 | { |
cb7f98ee | 4420 | http->status = HTTP_STATUS_ERROR; |
37e7e6e0 MS |
4421 | return (-1); |
4422 | } | |
4423 | } | |
a469f8a5 | 4424 | else if (httpPrintf(http, "%s: %s\r\n", http_fields[i], value) < 1) |
ef416fc2 | 4425 | { |
cb7f98ee | 4426 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4427 | return (-1); |
4428 | } | |
4429 | } | |
4430 | ||
4431 | if (http->cookie) | |
4432 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
4433 | { | |
cb7f98ee | 4434 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4435 | return (-1); |
4436 | } | |
4437 | ||
cb7f98ee MS |
4438 | DEBUG_printf(("5http_send: expect=%d, mode=%d, state=%d", http->expect, |
4439 | http->mode, http->state)); | |
4440 | ||
4441 | if (http->expect == HTTP_STATUS_CONTINUE && http->mode == _HTTP_MODE_CLIENT && | |
4442 | (http->state == HTTP_STATE_POST_RECV || | |
4443 | http->state == HTTP_STATE_PUT_RECV)) | |
b423cd4c | 4444 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) |
4445 | { | |
cb7f98ee | 4446 | http->status = HTTP_STATUS_ERROR; |
b423cd4c | 4447 | return (-1); |
4448 | } | |
4449 | ||
ef416fc2 | 4450 | if (httpPrintf(http, "\r\n") < 1) |
4451 | { | |
cb7f98ee | 4452 | http->status = HTTP_STATUS_ERROR; |
ef416fc2 | 4453 | return (-1); |
4454 | } | |
4455 | ||
536bc2c6 MS |
4456 | if (httpFlushWrite(http) < 0) |
4457 | return (-1); | |
4458 | ||
a469f8a5 | 4459 | http_set_length(http); |
ef416fc2 | 4460 | httpClearFields(http); |
4461 | ||
f7deaa1a | 4462 | /* |
b94498cf | 4463 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 4464 | */ |
4465 | ||
ef55b745 MS |
4466 | if (http->field_authorization && http->authstring && |
4467 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 4468 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 4469 | { |
4470 | http->_authstring[0] = '\0'; | |
4471 | ||
4472 | if (http->authstring != http->_authstring) | |
4473 | free(http->authstring); | |
ef55b745 | 4474 | |
f7deaa1a | 4475 | http->authstring = http->_authstring; |
4476 | } | |
4477 | ||
ef416fc2 | 4478 | return (0); |
4479 | } | |
4480 | ||
4481 | ||
a469f8a5 MS |
4482 | /* |
4483 | * 'http_set_length()' - Set the data_encoding and data_remaining values. | |
4484 | */ | |
4485 | ||
4486 | static off_t /* O - Remainder or -1 on error */ | |
4487 | http_set_length(http_t *http) /* I - Connection */ | |
4488 | { | |
4489 | off_t remaining; /* Remainder */ | |
4490 | ||
4491 | ||
807315e6 | 4492 | DEBUG_printf(("http_set_length(http=%p) mode=%d state=%s", (void *)http, http->mode, httpStateString(http->state))); |
a469f8a5 MS |
4493 | |
4494 | if ((remaining = httpGetLength2(http)) >= 0) | |
4495 | { | |
4496 | if (http->mode == _HTTP_MODE_SERVER && | |
4497 | http->state != HTTP_STATE_GET_SEND && | |
c41769ff | 4498 | http->state != HTTP_STATE_PUT && |
a469f8a5 MS |
4499 | http->state != HTTP_STATE_POST && |
4500 | http->state != HTTP_STATE_POST_SEND) | |
4501 | { | |
4502 | DEBUG_puts("1http_set_length: Not setting data_encoding/remaining."); | |
4503 | return (remaining); | |
4504 | } | |
4505 | ||
4506 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], | |
4507 | "chunked")) | |
4508 | { | |
4509 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4510 | "HTTP_ENCODING_CHUNKED."); | |
4511 | http->data_encoding = HTTP_ENCODING_CHUNKED; | |
4512 | } | |
4513 | else | |
4514 | { | |
4515 | DEBUG_puts("1http_set_length: Setting data_encoding to " | |
4516 | "HTTP_ENCODING_LENGTH."); | |
4517 | http->data_encoding = HTTP_ENCODING_LENGTH; | |
4518 | } | |
4519 | ||
4520 | DEBUG_printf(("1http_set_length: Setting data_remaining to " CUPS_LLFMT ".", | |
4521 | CUPS_LLCAST remaining)); | |
4522 | http->data_remaining = remaining; | |
4523 | ||
4524 | if (remaining <= INT_MAX) | |
7e86f2f6 | 4525 | http->_data_remaining = (int)remaining; |
a469f8a5 MS |
4526 | else |
4527 | http->_data_remaining = INT_MAX; | |
4528 | } | |
4529 | ||
4530 | return (remaining); | |
4531 | } | |
4532 | ||
85dda01c MS |
4533 | /* |
4534 | * 'http_set_timeout()' - Set the socket timeout values. | |
4535 | */ | |
4536 | ||
4537 | static void | |
4538 | http_set_timeout(int fd, /* I - File descriptor */ | |
4539 | double timeout) /* I - Timeout in seconds */ | |
4540 | { | |
4541 | #ifdef WIN32 | |
4542 | DWORD tv = (DWORD)(timeout * 1000); | |
4543 | /* Timeout in milliseconds */ | |
4544 | ||
db8b865d MS |
4545 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4546 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4547 | |
4548 | #else | |
4549 | struct timeval tv; /* Timeout in secs and usecs */ | |
4550 | ||
4551 | tv.tv_sec = (int)timeout; | |
4552 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
4553 | ||
db8b865d MS |
4554 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, CUPS_SOCAST &tv, sizeof(tv)); |
4555 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, CUPS_SOCAST &tv, sizeof(tv)); | |
85dda01c MS |
4556 | #endif /* WIN32 */ |
4557 | } | |
4558 | ||
4559 | ||
4560 | /* | |
4561 | * 'http_set_wait()' - Set the default wait value for reads. | |
4562 | */ | |
4563 | ||
4564 | static void | |
e6b1a6a9 | 4565 | http_set_wait(http_t *http) /* I - HTTP connection */ |
85dda01c MS |
4566 | { |
4567 | if (http->blocking) | |
4568 | { | |
4569 | http->wait_value = (int)(http->timeout_value * 1000); | |
4570 | ||
4571 | if (http->wait_value <= 0) | |
4572 | http->wait_value = 60000; | |
4573 | } | |
4574 | else | |
4575 | http->wait_value = 10000; | |
4576 | } | |
4577 | ||
4578 | ||
9b66acc5 | 4579 | #ifdef HAVE_SSL |
ef416fc2 | 4580 | /* |
2c85b752 | 4581 | * 'http_tls_upgrade()' - Force upgrade to TLS encryption. |
ef416fc2 | 4582 | */ |
4583 | ||
89d46774 | 4584 | static int /* O - Status of connection */ |
2c85b752 | 4585 | http_tls_upgrade(http_t *http) /* I - HTTP connection */ |
ef416fc2 | 4586 | { |
89d46774 | 4587 | int ret; /* Return value */ |
4588 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4589 | |
4590 | ||
807315e6 | 4591 | DEBUG_printf(("7http_tls_upgrade(%p)", (void *)http)); |
ef416fc2 | 4592 | |
85b5d1df MS |
4593 | /* |
4594 | * Flush the connection to make sure any previous "Upgrade" message | |
4595 | * has been read. | |
4596 | */ | |
4597 | ||
4598 | httpFlush(http); | |
4599 | ||
ef416fc2 | 4600 | /* |
4601 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4602 | * request without interfering with the existing request data... | |
4603 | */ | |
4604 | ||
4605 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4606 | ||
4607 | /* | |
4608 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4609 | * encryption on the link... | |
4610 | */ | |
4611 | ||
cb7f98ee | 4612 | http->tls_upgrade = 1; |
f7deaa1a | 4613 | http->field_authorization = NULL; /* Don't free the auth string */ |
4614 | ||
b86bc4cf | 4615 | httpClearFields(http); |
4616 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
a469f8a5 | 4617 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2,TLS/1.1,TLS/1.0"); |
ef416fc2 | 4618 | |
b86bc4cf | 4619 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4620 | { |
4621 | /* | |
4622 | * Wait for the secure connection... | |
4623 | */ | |
4624 | ||
cb7f98ee | 4625 | while (httpUpdate(http) == HTTP_STATUS_CONTINUE); |
ef416fc2 | 4626 | } |
4627 | ||
ef416fc2 | 4628 | /* |
b86bc4cf | 4629 | * Restore the HTTP request data... |
ef416fc2 | 4630 | */ |
4631 | ||
b86bc4cf | 4632 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4633 | http->data_encoding = myhttp.data_encoding; |
4634 | http->data_remaining = myhttp.data_remaining; | |
4635 | http->_data_remaining = myhttp._data_remaining; | |
4636 | http->expect = myhttp.expect; | |
4637 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4638 | http->digest_tries = myhttp.digest_tries; |
cb7f98ee | 4639 | http->tls_upgrade = 0; |
ef416fc2 | 4640 | |
4641 | /* | |
4642 | * See if we actually went secure... | |
4643 | */ | |
4644 | ||
4645 | if (!http->tls) | |
4646 | { | |
4647 | /* | |
4648 | * Server does not support HTTP upgrade... | |
4649 | */ | |
4650 | ||
2c85b752 | 4651 | DEBUG_puts("8http_tls_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4652 | |
4cecbbe8 | 4653 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, _("Encryption is not supported."), 1); |
87e98392 | 4654 | httpAddrClose(NULL, http->fd); |
ef416fc2 | 4655 | |
4656 | http->fd = -1; | |
4657 | ||
4658 | return (-1); | |
4659 | } | |
4660 | else | |
4661 | return (ret); | |
4662 | } | |
4663 | #endif /* HAVE_SSL */ | |
4664 | ||
4665 | ||
ef416fc2 | 4666 | /* |
4667 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4668 | */ | |
ef55b745 | 4669 | |
0fa6c7fa | 4670 | static ssize_t /* O - Number of bytes written */ |
e6b1a6a9 | 4671 | http_write(http_t *http, /* I - HTTP connection */ |
f11a948a | 4672 | const char *buffer, /* I - Buffer for data */ |
0fa6c7fa | 4673 | size_t length) /* I - Number of bytes to write */ |
ef416fc2 | 4674 | { |
0fa6c7fa MS |
4675 | ssize_t tbytes, /* Total bytes sent */ |
4676 | bytes; /* Bytes sent */ | |
ef416fc2 | 4677 | |
4678 | ||
807315e6 | 4679 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
f11a948a MS |
4680 | http->error = 0; |
4681 | tbytes = 0; | |
ef416fc2 | 4682 | |
4683 | while (length > 0) | |
4684 | { | |
12f89d24 MS |
4685 | DEBUG_printf(("3http_write: About to write %d bytes.", (int)length)); |
4686 | ||
85dda01c MS |
4687 | if (http->timeout_cb) |
4688 | { | |
4689 | #ifdef HAVE_POLL | |
4690 | struct pollfd pfd; /* Polled file descriptor */ | |
4691 | #else | |
4692 | fd_set output_set; /* Output ready for write? */ | |
4693 | struct timeval timeout; /* Timeout value */ | |
4694 | #endif /* HAVE_POLL */ | |
4695 | int nfds; /* Result from select()/poll() */ | |
4696 | ||
4697 | do | |
4698 | { | |
4699 | #ifdef HAVE_POLL | |
4700 | pfd.fd = http->fd; | |
4701 | pfd.events = POLLOUT; | |
4702 | ||
4703 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
82cc1f9a MS |
4704 | (errno == EINTR || errno == EAGAIN)) |
4705 | /* do nothing */; | |
85dda01c MS |
4706 | |
4707 | #else | |
4708 | do | |
4709 | { | |
4710 | FD_ZERO(&output_set); | |
4711 | FD_SET(http->fd, &output_set); | |
4712 | ||
4713 | timeout.tv_sec = http->wait_value / 1000; | |
4714 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4715 | ||
4716 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4717 | } | |
4718 | # ifdef WIN32 | |
4719 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4720 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4721 | # else | |
4722 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4723 | # endif /* WIN32 */ | |
4724 | #endif /* HAVE_POLL */ | |
4725 | ||
4726 | if (nfds < 0) | |
4727 | { | |
4728 | http->error = errno; | |
4729 | return (-1); | |
4730 | } | |
4731 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
4732 | { | |
4733 | #ifdef WIN32 | |
83e08001 | 4734 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4735 | #else |
4736 | http->error = EWOULDBLOCK; | |
4737 | #endif /* WIN32 */ | |
4738 | return (-1); | |
4739 | } | |
4740 | } | |
4741 | while (nfds <= 0); | |
4742 | } | |
4743 | ||
ef416fc2 | 4744 | #ifdef HAVE_SSL |
4745 | if (http->tls) | |
25731360 | 4746 | bytes = _httpTLSWrite(http, buffer, (int)length); |
ef416fc2 | 4747 | else |
4748 | #endif /* HAVE_SSL */ | |
4749 | bytes = send(http->fd, buffer, length, 0); | |
4750 | ||
0fa6c7fa MS |
4751 | DEBUG_printf(("3http_write: Write of " CUPS_LLFMT " bytes returned " |
4752 | CUPS_LLFMT ".", CUPS_LLCAST length, CUPS_LLCAST bytes)); | |
12f89d24 | 4753 | |
ef416fc2 | 4754 | if (bytes < 0) |
4755 | { | |
4756 | #ifdef WIN32 | |
10d09e33 | 4757 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4758 | continue; |
10d09e33 MS |
4759 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4760 | { | |
4761 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4762 | continue; | |
4763 | ||
4764 | http->error = WSAGetLastError(); | |
4765 | } | |
4766 | else if (WSAGetLastError() != http->error && | |
4767 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4768 | { |
4769 | http->error = WSAGetLastError(); | |
4770 | continue; | |
4771 | } | |
10d09e33 | 4772 | |
ef416fc2 | 4773 | #else |
10d09e33 | 4774 | if (errno == EINTR) |
ef416fc2 | 4775 | continue; |
10d09e33 MS |
4776 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4777 | { | |
4778 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4779 | continue; | |
4780 | else if (!http->timeout_cb && errno == EAGAIN) | |
4781 | continue; | |
4782 | ||
4783 | http->error = errno; | |
4784 | } | |
ef416fc2 | 4785 | else if (errno != http->error && errno != ECONNRESET) |
4786 | { | |
4787 | http->error = errno; | |
4788 | continue; | |
4789 | } | |
4790 | #endif /* WIN32 */ | |
4791 | ||
f8b3a85b MS |
4792 | DEBUG_printf(("3http_write: error writing data (%s).", |
4793 | strerror(http->error))); | |
ef416fc2 | 4794 | |
4795 | return (-1); | |
4796 | } | |
4797 | ||
4798 | buffer += bytes; | |
4799 | tbytes += bytes; | |
7e86f2f6 | 4800 | length -= (size_t)bytes; |
ef416fc2 | 4801 | } |
4802 | ||
4803 | #ifdef DEBUG | |
7e86f2f6 | 4804 | http_debug_hex("http_write", buffer - tbytes, (int)tbytes); |
ef416fc2 | 4805 | #endif /* DEBUG */ |
4806 | ||
0fa6c7fa | 4807 | DEBUG_printf(("3http_write: Returning " CUPS_LLFMT ".", CUPS_LLCAST tbytes)); |
f8b3a85b | 4808 | |
ef416fc2 | 4809 | return (tbytes); |
4810 | } | |
4811 | ||
4812 | ||
4813 | /* | |
4814 | * 'http_write_chunk()' - Write a chunked buffer. | |
4815 | */ | |
4816 | ||
0fa6c7fa | 4817 | static ssize_t /* O - Number bytes written */ |
e6b1a6a9 | 4818 | http_write_chunk(http_t *http, /* I - HTTP connection */ |
ef416fc2 | 4819 | const char *buffer, /* I - Buffer to write */ |
0fa6c7fa | 4820 | size_t length) /* I - Length of buffer */ |
ef416fc2 | 4821 | { |
0fa6c7fa MS |
4822 | char header[16]; /* Chunk header */ |
4823 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 4824 | |
f11a948a | 4825 | |
807315e6 | 4826 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=" CUPS_LLFMT ")", (void *)http, (void *)buffer, CUPS_LLCAST length)); |
ef416fc2 | 4827 | |
4828 | /* | |
4829 | * Write the chunk header, data, and trailer. | |
4830 | */ | |
4831 | ||
0fa6c7fa MS |
4832 | snprintf(header, sizeof(header), "%x\r\n", (unsigned)length); |
4833 | if (http_write(http, header, strlen(header)) < 0) | |
ef416fc2 | 4834 | { |
0fa6c7fa | 4835 | DEBUG_puts("8http_write_chunk: http_write of length failed."); |
ef416fc2 | 4836 | return (-1); |
4837 | } | |
4838 | ||
4839 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4840 | { | |
0fa6c7fa | 4841 | DEBUG_puts("8http_write_chunk: http_write of buffer failed."); |
ef416fc2 | 4842 | return (-1); |
4843 | } | |
4844 | ||
4845 | if (http_write(http, "\r\n", 2) < 0) | |
4846 | { | |
0fa6c7fa | 4847 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed."); |
ef416fc2 | 4848 | return (-1); |
4849 | } | |
4850 | ||
4851 | return (bytes); | |
4852 | } |