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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: http.c 7850 2008-08-20 00:07:25Z mike $" |
ef416fc2 | 3 | * |
71e16022 | 4 | * HTTP routines for CUPS. |
ef416fc2 | 5 | * |
0268488e | 6 | * Copyright 2007-2011 by Apple Inc. |
b86bc4cf | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
f7deaa1a | 9 | * This file contains Kerberos support code, copyright 2006 by |
10 | * Jelmer Vernooij. | |
11 | * | |
ef416fc2 | 12 | * These coded instructions, statements, and computer programs are the |
bc44d920 | 13 | * property of Apple Inc. and are protected by Federal copyright |
14 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
15 | * which should have been included with this file. If this file is | |
16 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 17 | * |
18 | * This file is subject to the Apple OS-Developed Software exception. | |
19 | * | |
20 | * Contents: | |
21 | * | |
7cf5915e MS |
22 | * httpAddCredential() - Allocates and adds a single credential to an |
23 | * array. | |
24 | * _httpBIOMethods() - Get the OpenSSL BIO methods for HTTP | |
25 | * connections. | |
26 | * httpBlocking() - Set blocking/non-blocking behavior on a | |
27 | * connection. | |
28 | * httpCheck() - Check to see if there is a pending response | |
29 | * from the server. | |
30 | * httpClearCookie() - Clear the cookie value(s). | |
31 | * httpClearFields() - Clear HTTP request fields. | |
32 | * httpClose() - Close an HTTP connection. | |
33 | * httpConnect() - Connect to a HTTP server. | |
34 | * httpConnectEncrypt() - Connect to a HTTP server using encryption. | |
35 | * httpCopyCredentials() - Copy the credentials associated with an | |
36 | * encrypted connection. | |
7cf5915e | 37 | * _httpCreate() - Create an unconnected HTTP connection. |
85dda01c | 38 | * _httpCreateCredentials() - Create credentials in the internal format. |
7cf5915e MS |
39 | * httpDelete() - Send a DELETE request to the server. |
40 | * _httpDisconnect() - Disconnect a HTTP connection. | |
41 | * httpEncryption() - Set the required encryption on the link. | |
42 | * httpError() - Get the last error on a connection. | |
43 | * httpFlush() - Flush data from a HTTP connection. | |
44 | * httpFlushWrite() - Flush data in write buffer. | |
45 | * _httpFreeCredentials() - Free internal credentials. | |
46 | * httpFreeCredentials() - Free an array of credentials. | |
47 | * httpGet() - Send a GET request to the server. | |
48 | * httpGetAuthString() - Get the current authorization string. | |
49 | * httpGetBlocking() - Get the blocking/non-block state of a | |
50 | * connection. | |
51 | * httpGetCookie() - Get any cookie data from the response. | |
52 | * httpGetFd() - Get the file descriptor associated with a | |
53 | * connection. | |
54 | * httpGetField() - Get a field value from a request/response. | |
55 | * httpGetLength() - Get the amount of data remaining from the | |
56 | * content-length or transfer-encoding fields. | |
57 | * httpGetLength2() - Get the amount of data remaining from the | |
58 | * content-length or transfer-encoding fields. | |
59 | * httpGetStatus() - Get the status of the last HTTP request. | |
60 | * httpGetSubField() - Get a sub-field value. | |
61 | * httpGetSubField2() - Get a sub-field value. | |
62 | * httpGets() - Get a line of text from a HTTP connection. | |
63 | * httpHead() - Send a HEAD request to the server. | |
64 | * httpInitialize() - Initialize the HTTP interface library and set | |
65 | * the default HTTP proxy (if any). | |
66 | * httpOptions() - Send an OPTIONS request to the server. | |
67 | * _httpPeek() - Peek at data from a HTTP connection. | |
68 | * httpPost() - Send a POST request to the server. | |
69 | * httpPrintf() - Print a formatted string to a HTTP connection. | |
70 | * httpPut() - Send a PUT request to the server. | |
71 | * httpRead() - Read data from a HTTP connection. | |
72 | * httpRead2() - Read data from a HTTP connection. | |
73 | * _httpReadCDSA() - Read function for the CDSA library. | |
74 | * _httpReadGNUTLS() - Read function for the GNU TLS library. | |
75 | * httpReconnect() - Reconnect to a HTTP server. | |
76 | * httpSetAuthString() - Set the current authorization string. | |
77 | * httpSetCredentials() - Set the credentials associated with an | |
78 | * encrypted connection. | |
79 | * httpSetCookie() - Set the cookie value(s). | |
80 | * httpSetExpect() - Set the Expect: header in a request. | |
81 | * httpSetField() - Set the value of an HTTP header. | |
82 | * httpSetLength() - Set the content-length and content-encoding. | |
f228370c | 83 | * httpSetTimeout() - Set read/write timeouts and an optional |
10d09e33 | 84 | * callback. |
7cf5915e | 85 | * httpTrace() - Send an TRACE request to the server. |
e60ec91f MS |
86 | * _httpUpdate() - Update the current HTTP status for incoming |
87 | * data. | |
7cf5915e MS |
88 | * httpUpdate() - Update the current HTTP state for incoming |
89 | * data. | |
90 | * _httpWait() - Wait for data available on a connection (no | |
91 | * flush). | |
92 | * httpWait() - Wait for data available on a connection. | |
93 | * httpWrite() - Write data to a HTTP connection. | |
94 | * httpWrite2() - Write data to a HTTP connection. | |
95 | * _httpWriteCDSA() - Write function for the CDSA library. | |
96 | * _httpWriteGNUTLS() - Write function for the GNU TLS library. | |
97 | * http_bio_ctrl() - Control the HTTP connection. | |
98 | * http_bio_free() - Free OpenSSL data. | |
99 | * http_bio_new() - Initialize an OpenSSL BIO structure. | |
100 | * http_bio_puts() - Send a string for OpenSSL. | |
101 | * http_bio_read() - Read data for OpenSSL. | |
102 | * http_bio_write() - Write data for OpenSSL. | |
103 | * http_debug_hex() - Do a hex dump of a buffer. | |
104 | * http_field() - Return the field index for a field name. | |
105 | * http_read_ssl() - Read from a SSL/TLS connection. | |
106 | * http_locking_cb() - Lock/unlock a thread's mutex. | |
107 | * http_send() - Send a request with all fields and the trailing | |
108 | * blank line. | |
109 | * http_set_credentials() - Set the SSL/TLS credentials. | |
85dda01c MS |
110 | * http_set_timeout() - Set the socket timeout values. |
111 | * http_set_wait() - Set the default wait value for reads. | |
7cf5915e MS |
112 | * http_setup_ssl() - Set up SSL/TLS support on a connection. |
113 | * http_shutdown_ssl() - Shut down SSL/TLS on a connection. | |
114 | * http_threadid_cb() - Return the current thread ID. | |
115 | * http_upgrade() - Force upgrade to TLS encryption. | |
116 | * http_write() - Write a buffer to a HTTP connection. | |
117 | * http_write_chunk() - Write a chunked buffer. | |
118 | * http_write_ssl() - Write to a SSL/TLS connection. | |
ef416fc2 | 119 | */ |
120 | ||
121 | /* | |
122 | * Include necessary headers... | |
123 | */ | |
124 | ||
71e16022 | 125 | #include "cups-private.h" |
ef416fc2 | 126 | #include <fcntl.h> |
83e08001 | 127 | #include <math.h> |
cc754834 MS |
128 | #ifdef WIN32 |
129 | # include <tchar.h> | |
130 | #else | |
ef416fc2 | 131 | # include <signal.h> |
132 | # include <sys/time.h> | |
133 | # include <sys/resource.h> | |
cc754834 | 134 | #endif /* WIN32 */ |
f7deaa1a | 135 | #ifdef HAVE_POLL |
136 | # include <sys/poll.h> | |
137 | #endif /* HAVE_POLL */ | |
ef416fc2 | 138 | |
139 | ||
140 | /* | |
141 | * Some operating systems have done away with the Fxxxx constants for | |
142 | * the fcntl() call; this works around that "feature"... | |
143 | */ | |
144 | ||
145 | #ifndef FNONBLK | |
146 | # define FNONBLK O_NONBLOCK | |
147 | #endif /* !FNONBLK */ | |
148 | ||
149 | ||
150 | /* | |
151 | * Local functions... | |
152 | */ | |
153 | ||
ae71f5de MS |
154 | #ifdef DEBUG |
155 | static void http_debug_hex(const char *prefix, const char *buffer, | |
156 | int bytes); | |
157 | #endif /* DEBUG */ | |
ef416fc2 | 158 | static http_field_t http_field(const char *name); |
159 | static int http_send(http_t *http, http_state_t request, | |
160 | const char *uri); | |
ef416fc2 | 161 | static int http_write(http_t *http, const char *buffer, |
162 | int length); | |
163 | static int http_write_chunk(http_t *http, const char *buffer, | |
164 | int length); | |
165 | #ifdef HAVE_SSL | |
166 | static int http_read_ssl(http_t *http, char *buf, int len); | |
82f97232 | 167 | # if defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e | 168 | static int http_set_credentials(http_t *http); |
82f97232 | 169 | # endif /* HAVE_CDSASSL ** HAVE_SECCERTIFICATECOPYDATA */ |
85dda01c MS |
170 | static void http_set_timeout(int fd, double timeout); |
171 | static void http_set_wait(http_t *http); | |
ef416fc2 | 172 | static int http_setup_ssl(http_t *http); |
173 | static void http_shutdown_ssl(http_t *http); | |
174 | static int http_upgrade(http_t *http); | |
175 | static int http_write_ssl(http_t *http, const char *buf, int len); | |
176 | #endif /* HAVE_SSL */ | |
177 | ||
178 | ||
179 | /* | |
180 | * Local globals... | |
181 | */ | |
182 | ||
183 | static const char * const http_fields[] = | |
184 | { | |
185 | "Accept-Language", | |
186 | "Accept-Ranges", | |
187 | "Authorization", | |
188 | "Connection", | |
189 | "Content-Encoding", | |
190 | "Content-Language", | |
191 | "Content-Length", | |
192 | "Content-Location", | |
193 | "Content-MD5", | |
194 | "Content-Range", | |
195 | "Content-Type", | |
196 | "Content-Version", | |
197 | "Date", | |
198 | "Host", | |
199 | "If-Modified-Since", | |
200 | "If-Unmodified-since", | |
201 | "Keep-Alive", | |
202 | "Last-Modified", | |
203 | "Link", | |
204 | "Location", | |
205 | "Range", | |
206 | "Referer", | |
207 | "Retry-After", | |
208 | "Transfer-Encoding", | |
209 | "Upgrade", | |
210 | "User-Agent", | |
211 | "WWW-Authenticate" | |
212 | }; | |
f11a948a MS |
213 | #ifdef DEBUG |
214 | static const char * const http_states[] = | |
215 | { | |
216 | "HTTP_WAITING", | |
217 | "HTTP_OPTIONS", | |
218 | "HTTP_GET", | |
219 | "HTTP_GET_SEND", | |
220 | "HTTP_HEAD", | |
221 | "HTTP_POST", | |
222 | "HTTP_POST_RECV", | |
223 | "HTTP_POST_SEND", | |
224 | "HTTP_PUT", | |
225 | "HTTP_PUT_RECV", | |
226 | "HTTP_DELETE", | |
227 | "HTTP_TRACE", | |
228 | "HTTP_CLOSE", | |
229 | "HTTP_STATUS" | |
230 | }; | |
231 | #endif /* DEBUG */ | |
ef416fc2 | 232 | |
233 | ||
411affcf | 234 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) |
235 | /* | |
236 | * BIO methods for OpenSSL... | |
237 | */ | |
238 | ||
239 | static int http_bio_write(BIO *h, const char *buf, int num); | |
240 | static int http_bio_read(BIO *h, char *buf, int size); | |
241 | static int http_bio_puts(BIO *h, const char *str); | |
242 | static long http_bio_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
243 | static int http_bio_new(BIO *h); | |
244 | static int http_bio_free(BIO *data); | |
245 | ||
246 | static BIO_METHOD http_bio_methods = | |
247 | { | |
248 | BIO_TYPE_SOCKET, | |
249 | "http", | |
250 | http_bio_write, | |
251 | http_bio_read, | |
252 | http_bio_puts, | |
253 | NULL, /* http_bio_gets, */ | |
254 | http_bio_ctrl, | |
255 | http_bio_new, | |
256 | http_bio_free, | |
257 | NULL, | |
258 | }; | |
7cf5915e | 259 | #endif /* HAVE_SSL && HAVE_LIBSSL */ |
411affcf | 260 | |
261 | ||
7cf5915e MS |
262 | /* |
263 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
264 | * | |
265 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
266 | * | |
321d8d57 | 267 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
268 | */ |
269 | ||
270 | int /* O - 0 on success, -1 on error */ | |
271 | httpAddCredential( | |
272 | cups_array_t *credentials, /* I - Credentials array */ | |
273 | const void *data, /* I - PEM-encoded X.509 data */ | |
274 | size_t datalen) /* I - Length of data */ | |
275 | { | |
276 | http_credential_t *credential; /* Credential data */ | |
277 | ||
278 | ||
279 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
280 | { | |
281 | credential->datalen = datalen; | |
282 | ||
283 | if ((credential->data = malloc(datalen)) != NULL) | |
284 | { | |
285 | memcpy(credential->data, data, datalen); | |
286 | cupsArrayAdd(credentials, credential); | |
287 | return (0); | |
288 | } | |
289 | ||
290 | free(credential); | |
291 | } | |
292 | ||
293 | return (-1); | |
294 | } | |
295 | ||
296 | ||
297 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
411affcf | 298 | /* |
299 | * '_httpBIOMethods()' - Get the OpenSSL BIO methods for HTTP connections. | |
300 | */ | |
301 | ||
302 | BIO_METHOD * /* O - BIO methods for OpenSSL */ | |
303 | _httpBIOMethods(void) | |
304 | { | |
305 | return (&http_bio_methods); | |
306 | } | |
307 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
308 | ||
309 | ||
ecdc0628 | 310 | /* |
311 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
312 | */ | |
313 | ||
314 | void | |
568fa3fa | 315 | httpBlocking(http_t *http, /* I - Connection to server */ |
ecdc0628 | 316 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
317 | { | |
318 | if (http) | |
85dda01c | 319 | { |
ecdc0628 | 320 | http->blocking = b; |
85dda01c MS |
321 | http_set_wait(http); |
322 | } | |
ecdc0628 | 323 | } |
324 | ||
325 | ||
ef416fc2 | 326 | /* |
327 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
328 | */ | |
329 | ||
ecdc0628 | 330 | int /* O - 0 = no data, 1 = data available */ |
568fa3fa | 331 | httpCheck(http_t *http) /* I - Connection to server */ |
ef416fc2 | 332 | { |
333 | return (httpWait(http, 0)); | |
334 | } | |
335 | ||
336 | ||
337 | /* | |
338 | * 'httpClearCookie()' - Clear the cookie value(s). | |
339 | * | |
426c6a59 | 340 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 341 | */ |
342 | ||
343 | void | |
568fa3fa | 344 | httpClearCookie(http_t *http) /* I - Connection to server */ |
ef416fc2 | 345 | { |
346 | if (!http) | |
347 | return; | |
348 | ||
349 | if (http->cookie) | |
350 | { | |
351 | free(http->cookie); | |
352 | http->cookie = NULL; | |
353 | } | |
354 | } | |
355 | ||
356 | ||
ecdc0628 | 357 | /* |
358 | * 'httpClearFields()' - Clear HTTP request fields. | |
359 | */ | |
360 | ||
361 | void | |
568fa3fa | 362 | httpClearFields(http_t *http) /* I - Connection to server */ |
ecdc0628 | 363 | { |
364 | if (http) | |
365 | { | |
366 | memset(http->fields, 0, sizeof(http->fields)); | |
07725fee | 367 | if (http->hostname[0] == '/') |
368 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
369 | else | |
370 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
b423cd4c | 371 | |
f7deaa1a | 372 | if (http->field_authorization) |
373 | { | |
374 | free(http->field_authorization); | |
375 | http->field_authorization = NULL; | |
376 | } | |
377 | ||
b423cd4c | 378 | http->expect = (http_status_t)0; |
ecdc0628 | 379 | } |
380 | } | |
381 | ||
382 | ||
ef416fc2 | 383 | /* |
6d2f911b | 384 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 385 | */ |
386 | ||
387 | void | |
568fa3fa | 388 | httpClose(http_t *http) /* I - Connection to server */ |
ef416fc2 | 389 | { |
f7deaa1a | 390 | #ifdef HAVE_GSSAPI |
1f0275e3 | 391 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 392 | #endif /* HAVE_GSSAPI */ |
393 | ||
394 | ||
e07d4801 | 395 | DEBUG_printf(("httpClose(http=%p)", http)); |
ef416fc2 | 396 | |
6d2f911b MS |
397 | /* |
398 | * Range check input... | |
399 | */ | |
400 | ||
ef416fc2 | 401 | if (!http) |
402 | return; | |
403 | ||
6d2f911b MS |
404 | /* |
405 | * Close any open connection... | |
406 | */ | |
407 | ||
408 | _httpDisconnect(http); | |
409 | ||
410 | /* | |
411 | * Free memory used... | |
412 | */ | |
413 | ||
ef416fc2 | 414 | httpAddrFreeList(http->addrlist); |
415 | ||
ef416fc2 | 416 | if (http->cookie) |
417 | free(http->cookie); | |
418 | ||
f7deaa1a | 419 | #ifdef HAVE_GSSAPI |
420 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 421 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 422 | |
423 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 424 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 425 | #endif /* HAVE_GSSAPI */ |
426 | ||
b94498cf | 427 | #ifdef HAVE_AUTHORIZATION_H |
428 | if (http->auth_ref) | |
429 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
430 | #endif /* HAVE_AUTHORIZATION_H */ | |
431 | ||
f7deaa1a | 432 | httpClearFields(http); |
433 | ||
434 | if (http->authstring && http->authstring != http->_authstring) | |
435 | free(http->authstring); | |
436 | ||
ef416fc2 | 437 | free(http); |
438 | } | |
439 | ||
440 | ||
441 | /* | |
442 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e MS |
443 | * |
444 | * This function is deprecated - use @link httpConnectEncrypt@ instead. | |
445 | * | |
446 | * @deprecated@ | |
ef416fc2 | 447 | */ |
448 | ||
449 | http_t * /* O - New HTTP connection */ | |
450 | httpConnect(const char *host, /* I - Host to connect to */ | |
451 | int port) /* I - Port number */ | |
452 | { | |
1ff0402e MS |
453 | return (httpConnectEncrypt(host, port, HTTP_ENCRYPT_IF_REQUESTED)); |
454 | } | |
455 | ||
456 | ||
457 | /* | |
458 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
459 | */ | |
460 | ||
461 | http_t * /* O - New HTTP connection */ | |
462 | httpConnectEncrypt( | |
463 | const char *host, /* I - Host to connect to */ | |
464 | int port, /* I - Port number */ | |
465 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
466 | { | |
467 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 468 | |
469 | ||
e07d4801 | 470 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", |
1ff0402e MS |
471 | host, port, encryption)); |
472 | ||
ef416fc2 | 473 | /* |
1ff0402e | 474 | * Create the HTTP structure... |
ef416fc2 | 475 | */ |
476 | ||
c8fef167 | 477 | if ((http = _httpCreate(host, port, NULL, encryption, AF_UNSPEC)) == NULL) |
1ff0402e | 478 | return (NULL); |
ef416fc2 | 479 | |
1ff0402e MS |
480 | /* |
481 | * Connect to the remote system... | |
482 | */ | |
483 | ||
484 | if (!httpReconnect(http)) | |
485 | return (http); | |
486 | ||
487 | /* | |
488 | * Could not connect to any known address - bail out! | |
489 | */ | |
490 | ||
491 | httpAddrFreeList(http->addrlist); | |
492 | ||
493 | free(http); | |
494 | ||
495 | return (NULL); | |
ef416fc2 | 496 | } |
497 | ||
498 | ||
7cf5915e MS |
499 | /* |
500 | * 'httpCopyCredentials()' - Copy the credentials associated with an encrypted | |
501 | * connection. | |
502 | * | |
321d8d57 | 503 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
504 | */ |
505 | ||
506 | int /* O - Status of call (0 = success) */ | |
507 | httpCopyCredentials( | |
508 | http_t *http, /* I - Connection to server */ | |
509 | cups_array_t **credentials) /* O - Array of credentials */ | |
510 | { | |
511 | # ifdef HAVE_LIBSSL | |
512 | # elif defined(HAVE_GNUTLS) | |
82f97232 | 513 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
514 | OSStatus error; /* Error code */ |
515 | CFIndex count; /* Number of credentials */ | |
516 | CFArrayRef peerCerts; /* Peer certificates */ | |
517 | SecCertificateRef secCert; /* Certificate reference */ | |
518 | CFDataRef data; /* Certificate data */ | |
519 | int i; /* Looping var */ | |
520 | # elif defined(HAVE_SSPISSL) | |
521 | # endif /* HAVE_LIBSSL */ | |
522 | ||
523 | ||
524 | if (credentials) | |
525 | *credentials = NULL; | |
526 | ||
527 | if (!http || !http->tls || !credentials) | |
528 | return (-1); | |
529 | ||
530 | # ifdef HAVE_LIBSSL | |
531 | return (-1); | |
532 | ||
533 | # elif defined(HAVE_GNUTLS) | |
534 | return (-1); | |
535 | ||
82f97232 | 536 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
537 | if (!(error = SSLCopyPeerCertificates(http->tls, &peerCerts)) && peerCerts) |
538 | { | |
539 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) | |
540 | { | |
541 | for (i = 0, count = CFArrayGetCount(peerCerts); i < count; i++) | |
542 | { | |
543 | secCert = (SecCertificateRef)CFArrayGetValueAtIndex(peerCerts, i); | |
544 | if ((data = SecCertificateCopyData(secCert))) | |
545 | { | |
546 | httpAddCredential(*credentials, CFDataGetBytePtr(data), | |
547 | CFDataGetLength(data)); | |
548 | CFRelease(data); | |
549 | } | |
550 | } | |
551 | } | |
552 | ||
553 | CFRelease(peerCerts); | |
554 | } | |
555 | ||
556 | return (error); | |
557 | ||
558 | # elif defined(HAVE_SSPISSL) | |
559 | return (-1); | |
82f97232 MS |
560 | |
561 | # else | |
562 | return (-1); | |
7cf5915e MS |
563 | # endif /* HAVE_LIBSSL */ |
564 | } | |
565 | ||
566 | ||
ef416fc2 | 567 | /* |
1ff0402e | 568 | * '_httpCreate()' - Create an unconnected HTTP connection. |
ef416fc2 | 569 | */ |
570 | ||
1ff0402e MS |
571 | http_t * /* O - HTTP connection */ |
572 | _httpCreate( | |
573 | const char *host, /* I - Hostname */ | |
ef416fc2 | 574 | int port, /* I - Port number */ |
c8fef167 | 575 | http_addrlist_t *addrlist, /* I - Address list or NULL */ |
1106b00e MS |
576 | http_encryption_t encryption, /* I - Encryption to use */ |
577 | int family) /* I - Address family or AF_UNSPEC */ | |
ef416fc2 | 578 | { |
c8fef167 MS |
579 | http_t *http; /* New HTTP connection */ |
580 | char service[255]; /* Service name */ | |
ef416fc2 | 581 | |
582 | ||
e07d4801 | 583 | DEBUG_printf(("4_httpCreate(host=\"%s\", port=%d, encryption=%d)", |
1ff0402e | 584 | host, port, encryption)); |
ef416fc2 | 585 | |
586 | if (!host) | |
587 | return (NULL); | |
588 | ||
589 | httpInitialize(); | |
590 | ||
591 | /* | |
592 | * Lookup the host... | |
593 | */ | |
594 | ||
595 | sprintf(service, "%d", port); | |
596 | ||
c8fef167 MS |
597 | if (!addrlist) |
598 | if ((addrlist = httpAddrGetList(host, family, service)) == NULL) | |
599 | return (NULL); | |
ef416fc2 | 600 | |
601 | /* | |
602 | * Allocate memory for the structure... | |
603 | */ | |
604 | ||
91c84a35 MS |
605 | if ((http = calloc(sizeof(http_t), 1)) == NULL) |
606 | { | |
607 | httpAddrFreeList(addrlist); | |
ef416fc2 | 608 | return (NULL); |
91c84a35 | 609 | } |
ef416fc2 | 610 | |
1ff0402e MS |
611 | /* |
612 | * Initialize the HTTP data... | |
613 | */ | |
614 | ||
ef416fc2 | 615 | http->activity = time(NULL); |
1ff0402e MS |
616 | http->addrlist = addrlist; |
617 | http->blocking = 1; | |
ef416fc2 | 618 | http->fd = -1; |
f7deaa1a | 619 | #ifdef HAVE_GSSAPI |
1ff0402e MS |
620 | http->gssctx = GSS_C_NO_CONTEXT; |
621 | http->gssname = GSS_C_NO_NAME; | |
f7deaa1a | 622 | #endif /* HAVE_GSSAPI */ |
1ff0402e | 623 | http->version = HTTP_1_1; |
f7deaa1a | 624 | |
1ff0402e | 625 | strlcpy(http->hostname, host, sizeof(http->hostname)); |
ef416fc2 | 626 | |
627 | if (port == 443) /* Always use encryption for https */ | |
628 | http->encryption = HTTP_ENCRYPT_ALWAYS; | |
629 | else | |
630 | http->encryption = encryption; | |
631 | ||
85dda01c MS |
632 | http_set_wait(http); |
633 | ||
ef416fc2 | 634 | /* |
1ff0402e | 635 | * Return the new structure... |
ef416fc2 | 636 | */ |
637 | ||
1ff0402e | 638 | return (http); |
ef416fc2 | 639 | } |
640 | ||
641 | ||
85dda01c MS |
642 | /* |
643 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
644 | */ | |
645 | ||
646 | http_tls_credentials_t /* O - Internal credentials */ | |
647 | _httpCreateCredentials( | |
648 | cups_array_t *credentials) /* I - Array of credentials */ | |
649 | { | |
650 | if (!credentials) | |
651 | return (NULL); | |
652 | ||
653 | # ifdef HAVE_LIBSSL | |
654 | return (NULL); | |
655 | ||
656 | # elif defined(HAVE_GNUTLS) | |
657 | return (NULL); | |
658 | ||
659 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) | |
660 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
661 | SecCertificateRef secCert; /* Certificate reference */ | |
662 | CFDataRef data; /* Credential data reference */ | |
663 | http_credential_t *credential; /* Credential data */ | |
664 | ||
665 | ||
666 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
667 | cupsArrayCount(credentials), | |
668 | &kCFTypeArrayCallBacks)) == NULL) | |
669 | return (NULL); | |
670 | ||
671 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
672 | credential; | |
673 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
674 | { | |
675 | if ((data = CFDataCreate(kCFAllocatorDefault, credential->data, | |
676 | credential->datalen))) | |
677 | { | |
678 | if ((secCert = SecCertificateCreateWithData(kCFAllocatorDefault, data)) | |
679 | != NULL) | |
680 | { | |
681 | CFArrayAppendValue(peerCerts, secCert); | |
682 | CFRelease(secCert); | |
683 | } | |
684 | ||
685 | CFRelease(data); | |
686 | } | |
687 | } | |
688 | ||
689 | return (peerCerts); | |
690 | ||
691 | # elif defined(HAVE_SSPISSL) | |
692 | return (NULL); | |
693 | ||
694 | # else | |
695 | return (NULL); | |
696 | # endif /* HAVE_LIBSSL */ | |
697 | } | |
698 | ||
699 | ||
ef416fc2 | 700 | /* |
701 | * 'httpDelete()' - Send a DELETE request to the server. | |
702 | */ | |
703 | ||
704 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 705 | httpDelete(http_t *http, /* I - Connection to server */ |
ef416fc2 | 706 | const char *uri) /* I - URI to delete */ |
707 | { | |
708 | return (http_send(http, HTTP_DELETE, uri)); | |
709 | } | |
710 | ||
711 | ||
6d2f911b MS |
712 | /* |
713 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
714 | */ | |
715 | ||
716 | void | |
717 | _httpDisconnect(http_t *http) /* I - Connection to server */ | |
718 | { | |
719 | #ifdef HAVE_SSL | |
720 | if (http->tls) | |
721 | http_shutdown_ssl(http); | |
722 | #endif /* HAVE_SSL */ | |
723 | ||
724 | #ifdef WIN32 | |
725 | closesocket(http->fd); | |
726 | #else | |
727 | close(http->fd); | |
728 | #endif /* WIN32 */ | |
729 | ||
730 | http->fd = -1; | |
731 | } | |
732 | ||
733 | ||
ef416fc2 | 734 | /* |
735 | * 'httpEncryption()' - Set the required encryption on the link. | |
736 | */ | |
737 | ||
738 | int /* O - -1 on error, 0 on success */ | |
568fa3fa | 739 | httpEncryption(http_t *http, /* I - Connection to server */ |
ef416fc2 | 740 | http_encryption_t e) /* I - New encryption preference */ |
741 | { | |
e07d4801 | 742 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", http, e)); |
ef416fc2 | 743 | |
744 | #ifdef HAVE_SSL | |
745 | if (!http) | |
746 | return (0); | |
747 | ||
748 | http->encryption = e; | |
749 | ||
750 | if ((http->encryption == HTTP_ENCRYPT_ALWAYS && !http->tls) || | |
751 | (http->encryption == HTTP_ENCRYPT_NEVER && http->tls)) | |
752 | return (httpReconnect(http)); | |
753 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
754 | return (http_upgrade(http)); | |
755 | else | |
756 | return (0); | |
757 | #else | |
758 | if (e == HTTP_ENCRYPT_ALWAYS || e == HTTP_ENCRYPT_REQUIRED) | |
759 | return (-1); | |
760 | else | |
761 | return (0); | |
762 | #endif /* HAVE_SSL */ | |
763 | } | |
764 | ||
765 | ||
ecdc0628 | 766 | /* |
767 | * 'httpError()' - Get the last error on a connection. | |
768 | */ | |
769 | ||
770 | int /* O - Error code (errno) value */ | |
568fa3fa | 771 | httpError(http_t *http) /* I - Connection to server */ |
ecdc0628 | 772 | { |
773 | if (http) | |
774 | return (http->error); | |
775 | else | |
776 | return (EINVAL); | |
777 | } | |
778 | ||
779 | ||
ef416fc2 | 780 | /* |
781 | * 'httpFlush()' - Flush data from a HTTP connection. | |
782 | */ | |
783 | ||
784 | void | |
568fa3fa | 785 | httpFlush(http_t *http) /* I - Connection to server */ |
ef416fc2 | 786 | { |
f8b3a85b MS |
787 | char buffer[8192]; /* Junk buffer */ |
788 | int blocking; /* To block or not to block */ | |
789 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 790 | |
791 | ||
f11a948a MS |
792 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
793 | http_states[http->state])); | |
ef416fc2 | 794 | |
fa73b229 | 795 | /* |
796 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
797 | */ | |
798 | ||
799 | blocking = http->blocking; | |
800 | http->blocking = 0; | |
801 | ||
802 | /* | |
803 | * Read any data we can... | |
804 | */ | |
805 | ||
f8b3a85b | 806 | oldstate = http->state; |
a4d04587 | 807 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 808 | |
809 | /* | |
810 | * Restore blocking and reset the connection if we didn't get all of | |
811 | * the remaining data... | |
812 | */ | |
813 | ||
814 | http->blocking = blocking; | |
815 | ||
aaf19ab0 | 816 | if (http->state == oldstate && http->state != HTTP_WAITING && http->fd >= 0) |
fa73b229 | 817 | { |
818 | /* | |
819 | * Didn't get the data back, so close the current connection. | |
820 | */ | |
821 | ||
822 | http->state = HTTP_WAITING; | |
823 | ||
824 | #ifdef HAVE_SSL | |
825 | if (http->tls) | |
826 | http_shutdown_ssl(http); | |
827 | #endif /* HAVE_SSL */ | |
828 | ||
829 | #ifdef WIN32 | |
830 | closesocket(http->fd); | |
831 | #else | |
832 | close(http->fd); | |
833 | #endif /* WIN32 */ | |
834 | ||
835 | http->fd = -1; | |
836 | } | |
ef416fc2 | 837 | } |
838 | ||
839 | ||
840 | /* | |
841 | * 'httpFlushWrite()' - Flush data in write buffer. | |
842 | * | |
426c6a59 | 843 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 844 | */ |
845 | ||
846 | int /* O - Bytes written or -1 on error */ | |
568fa3fa | 847 | httpFlushWrite(http_t *http) /* I - Connection to server */ |
ef416fc2 | 848 | { |
849 | int bytes; /* Bytes written */ | |
850 | ||
851 | ||
e07d4801 | 852 | DEBUG_printf(("httpFlushWrite(http=%p)", http)); |
ef416fc2 | 853 | |
854 | if (!http || !http->wused) | |
f8b3a85b MS |
855 | { |
856 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
857 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 858 | return (0); |
f8b3a85b | 859 | } |
ef416fc2 | 860 | |
861 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
862 | bytes = http_write_chunk(http, http->wbuffer, http->wused); | |
863 | else | |
864 | bytes = http_write(http, http->wbuffer, http->wused); | |
865 | ||
866 | http->wused = 0; | |
867 | ||
22c9029b | 868 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", bytes, errno)); |
f8b3a85b | 869 | |
ef416fc2 | 870 | return (bytes); |
871 | } | |
872 | ||
873 | ||
7cf5915e MS |
874 | /* |
875 | * '_httpFreeCredentials()' - Free internal credentials. | |
876 | */ | |
877 | ||
878 | void | |
879 | _httpFreeCredentials( | |
880 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
881 | { | |
882 | if (!credentials) | |
883 | return; | |
884 | ||
885 | #ifdef HAVE_LIBSSL | |
886 | (void)credentials; | |
887 | ||
888 | #elif defined(HAVE_GNUTLS) | |
889 | (void)credentials; | |
890 | ||
891 | #elif defined(HAVE_CDSASSL) | |
892 | CFRelease(credentials); | |
893 | ||
894 | #elif defined(HAVE_SSPISSL) | |
895 | (void)credentials; | |
896 | ||
897 | #endif /* HAVE_LIBSSL */ | |
898 | } | |
899 | ||
900 | ||
901 | /* | |
902 | * 'httpFreeCredentials()' - Free an array of credentials. | |
903 | */ | |
904 | ||
905 | void | |
906 | httpFreeCredentials( | |
907 | cups_array_t *credentials) /* I - Array of credentials */ | |
908 | { | |
909 | http_credential_t *credential; /* Credential */ | |
910 | ||
911 | ||
912 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
913 | credential; | |
914 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
915 | { | |
916 | cupsArrayRemove(credentials, credential); | |
917 | free((void *)credential->data); | |
918 | free(credential); | |
919 | } | |
920 | ||
921 | cupsArrayDelete(credentials); | |
922 | } | |
923 | ||
924 | ||
ef416fc2 | 925 | /* |
926 | * 'httpGet()' - Send a GET request to the server. | |
927 | */ | |
928 | ||
929 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 930 | httpGet(http_t *http, /* I - Connection to server */ |
ef416fc2 | 931 | const char *uri) /* I - URI to get */ |
932 | { | |
933 | return (http_send(http, HTTP_GET, uri)); | |
934 | } | |
935 | ||
936 | ||
355e94dc MS |
937 | /* |
938 | * 'httpGetAuthString()' - Get the current authorization string. | |
939 | * | |
940 | * The authorization string is set by cupsDoAuthentication() and | |
941 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
942 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
943 | * value. | |
944 | * | |
426c6a59 | 945 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
946 | */ |
947 | ||
948 | char * /* O - Authorization string */ | |
568fa3fa | 949 | httpGetAuthString(http_t *http) /* I - Connection to server */ |
355e94dc MS |
950 | { |
951 | if (http) | |
952 | return (http->authstring); | |
953 | else | |
954 | return (NULL); | |
955 | } | |
956 | ||
957 | ||
ecdc0628 | 958 | /* |
959 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
960 | * | |
426c6a59 | 961 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 962 | */ |
963 | ||
964 | int /* O - 1 if blocking, 0 if non-blocking */ | |
568fa3fa | 965 | httpGetBlocking(http_t *http) /* I - Connection to server */ |
ecdc0628 | 966 | { |
967 | return (http ? http->blocking : 0); | |
968 | } | |
969 | ||
970 | ||
971 | /* | |
972 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 973 | * |
426c6a59 | 974 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ecdc0628 | 975 | */ |
976 | ||
977 | const char * /* O - Cookie data or NULL */ | |
978 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
979 | { | |
980 | return (http ? http->cookie : NULL); | |
981 | } | |
982 | ||
983 | ||
984 | /* | |
985 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
986 | * | |
426c6a59 | 987 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 988 | */ |
989 | ||
990 | int /* O - File descriptor or -1 if none */ | |
568fa3fa | 991 | httpGetFd(http_t *http) /* I - Connection to server */ |
ecdc0628 | 992 | { |
993 | return (http ? http->fd : -1); | |
994 | } | |
995 | ||
996 | ||
997 | /* | |
998 | * 'httpGetField()' - Get a field value from a request/response. | |
999 | */ | |
1000 | ||
1001 | const char * /* O - Field value */ | |
568fa3fa | 1002 | httpGetField(http_t *http, /* I - Connection to server */ |
ecdc0628 | 1003 | http_field_t field) /* I - Field to get */ |
1004 | { | |
1005 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1006 | return (NULL); | |
ef55b745 | 1007 | else if (field == HTTP_FIELD_AUTHORIZATION && |
f7deaa1a | 1008 | http->field_authorization) |
1009 | { | |
1010 | /* | |
1011 | * Special case for WWW-Authenticate: as its contents can be | |
1012 | * longer than HTTP_MAX_VALUE... | |
1013 | */ | |
1014 | ||
1015 | return (http->field_authorization); | |
1016 | } | |
ecdc0628 | 1017 | else |
1018 | return (http->fields[field]); | |
1019 | } | |
1020 | ||
1021 | ||
1022 | /* | |
1023 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1024 | * content-length or transfer-encoding fields. | |
1025 | * | |
1026 | * This function is deprecated and will not return lengths larger than | |
1027 | * 2^31 - 1; use httpGetLength2() instead. | |
1028 | * | |
1029 | * @deprecated@ | |
1030 | */ | |
1031 | ||
1032 | int /* O - Content length */ | |
568fa3fa | 1033 | httpGetLength(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1034 | { |
1035 | /* | |
1036 | * Get the read content length and return the 32-bit value. | |
1037 | */ | |
1038 | ||
1039 | if (http) | |
1040 | { | |
1041 | httpGetLength2(http); | |
1042 | ||
1043 | return (http->_data_remaining); | |
1044 | } | |
1045 | else | |
1046 | return (-1); | |
1047 | } | |
1048 | ||
1049 | ||
1050 | /* | |
1051 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1052 | * content-length or transfer-encoding fields. | |
1053 | * | |
1054 | * This function returns the complete content length, even for | |
1055 | * content larger than 2^31 - 1. | |
1056 | * | |
426c6a59 | 1057 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 1058 | */ |
1059 | ||
1060 | off_t /* O - Content length */ | |
568fa3fa | 1061 | httpGetLength2(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1062 | { |
f11a948a MS |
1063 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
1064 | http_states[http->state])); | |
ecdc0628 | 1065 | |
1066 | if (!http) | |
1067 | return (-1); | |
1068 | ||
88f9aafc | 1069 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1070 | { |
e07d4801 | 1071 | DEBUG_puts("4httpGetLength2: chunked request!"); |
ecdc0628 | 1072 | |
1073 | http->data_encoding = HTTP_ENCODE_CHUNKED; | |
1074 | http->data_remaining = 0; | |
1075 | } | |
1076 | else | |
1077 | { | |
1078 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1079 | ||
1080 | /* | |
1081 | * The following is a hack for HTTP servers that don't send a | |
1082 | * content-length or transfer-encoding field... | |
1083 | * | |
1084 | * If there is no content-length then the connection must close | |
1085 | * after the transfer is complete... | |
1086 | */ | |
1087 | ||
b86bc4cf | 1088 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1089 | { | |
1090 | /* | |
1091 | * Default content length is 0 for errors and 2^31-1 for other | |
1092 | * successful requests... | |
1093 | */ | |
1094 | ||
1095 | if (http->status >= HTTP_MULTIPLE_CHOICES) | |
1096 | http->data_remaining = 0; | |
1097 | else | |
1098 | http->data_remaining = 2147483647; | |
1099 | } | |
ecdc0628 | 1100 | else |
1101 | http->data_remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], | |
1102 | NULL, 10); | |
1103 | ||
e07d4801 | 1104 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
ecdc0628 | 1105 | CUPS_LLCAST http->data_remaining)); |
1106 | } | |
1107 | ||
1108 | if (http->data_remaining <= INT_MAX) | |
1109 | http->_data_remaining = (int)http->data_remaining; | |
1110 | else | |
1111 | http->_data_remaining = INT_MAX; | |
1112 | ||
1113 | return (http->data_remaining); | |
1114 | } | |
1115 | ||
1116 | ||
1117 | /* | |
1118 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1119 | * | |
426c6a59 | 1120 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 1121 | */ |
1122 | ||
1123 | http_status_t /* O - HTTP status */ | |
568fa3fa | 1124 | httpGetStatus(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1125 | { |
1126 | return (http ? http->status : HTTP_ERROR); | |
1127 | } | |
1128 | ||
1129 | ||
ef416fc2 | 1130 | /* |
1131 | * 'httpGetSubField()' - Get a sub-field value. | |
1132 | * | |
1133 | * @deprecated@ | |
1134 | */ | |
1135 | ||
1136 | char * /* O - Value or NULL */ | |
568fa3fa | 1137 | httpGetSubField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1138 | http_field_t field, /* I - Field index */ |
1139 | const char *name, /* I - Name of sub-field */ | |
1140 | char *value) /* O - Value string */ | |
1141 | { | |
1142 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1143 | } | |
1144 | ||
1145 | ||
1146 | /* | |
1147 | * 'httpGetSubField2()' - Get a sub-field value. | |
1148 | * | |
426c6a59 | 1149 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 1150 | */ |
1151 | ||
1152 | char * /* O - Value or NULL */ | |
568fa3fa | 1153 | httpGetSubField2(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1154 | http_field_t field, /* I - Field index */ |
1155 | const char *name, /* I - Name of sub-field */ | |
1156 | char *value, /* O - Value string */ | |
1157 | int valuelen) /* I - Size of value buffer */ | |
1158 | { | |
1159 | const char *fptr; /* Pointer into field */ | |
1160 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1161 | *ptr, /* Pointer into string buffer */ | |
1162 | *end; /* End of value buffer */ | |
1163 | ||
e07d4801 MS |
1164 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " |
1165 | "valuelen=%d)", http, field, name, value, valuelen)); | |
ef416fc2 | 1166 | |
1167 | if (!http || !name || !value || valuelen < 2 || | |
ecdc0628 | 1168 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) |
ef416fc2 | 1169 | return (NULL); |
1170 | ||
1171 | end = value + valuelen - 1; | |
1172 | ||
1173 | for (fptr = http->fields[field]; *fptr;) | |
1174 | { | |
1175 | /* | |
1176 | * Skip leading whitespace... | |
1177 | */ | |
1178 | ||
7cf5915e | 1179 | while (_cups_isspace(*fptr)) |
ef416fc2 | 1180 | fptr ++; |
1181 | ||
1182 | if (*fptr == ',') | |
1183 | { | |
1184 | fptr ++; | |
1185 | continue; | |
1186 | } | |
1187 | ||
1188 | /* | |
1189 | * Get the sub-field name... | |
1190 | */ | |
1191 | ||
1192 | for (ptr = temp; | |
7cf5915e | 1193 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && |
ef416fc2 | 1194 | ptr < (temp + sizeof(temp) - 1); |
1195 | *ptr++ = *fptr++); | |
1196 | ||
1197 | *ptr = '\0'; | |
1198 | ||
e07d4801 | 1199 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); |
ef416fc2 | 1200 | |
1201 | /* | |
1202 | * Skip trailing chars up to the '='... | |
1203 | */ | |
1204 | ||
7cf5915e | 1205 | while (_cups_isspace(*fptr)) |
ef416fc2 | 1206 | fptr ++; |
1207 | ||
1208 | if (!*fptr) | |
1209 | break; | |
1210 | ||
1211 | if (*fptr != '=') | |
1212 | continue; | |
1213 | ||
1214 | /* | |
1215 | * Skip = and leading whitespace... | |
1216 | */ | |
1217 | ||
1218 | fptr ++; | |
1219 | ||
7cf5915e | 1220 | while (_cups_isspace(*fptr)) |
ef416fc2 | 1221 | fptr ++; |
1222 | ||
1223 | if (*fptr == '\"') | |
1224 | { | |
1225 | /* | |
1226 | * Read quoted string... | |
1227 | */ | |
1228 | ||
1229 | for (ptr = value, fptr ++; | |
1230 | *fptr && *fptr != '\"' && ptr < end; | |
1231 | *ptr++ = *fptr++); | |
1232 | ||
1233 | *ptr = '\0'; | |
1234 | ||
1235 | while (*fptr && *fptr != '\"') | |
1236 | fptr ++; | |
1237 | ||
1238 | if (*fptr) | |
1239 | fptr ++; | |
1240 | } | |
1241 | else | |
1242 | { | |
1243 | /* | |
1244 | * Read unquoted string... | |
1245 | */ | |
1246 | ||
1247 | for (ptr = value; | |
7cf5915e | 1248 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; |
ef416fc2 | 1249 | *ptr++ = *fptr++); |
1250 | ||
1251 | *ptr = '\0'; | |
1252 | ||
7cf5915e | 1253 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') |
ef416fc2 | 1254 | fptr ++; |
1255 | } | |
1256 | ||
e07d4801 | 1257 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); |
ef416fc2 | 1258 | |
1259 | /* | |
1260 | * See if this is the one... | |
1261 | */ | |
1262 | ||
1263 | if (!strcmp(name, temp)) | |
e07d4801 MS |
1264 | { |
1265 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
ef416fc2 | 1266 | return (value); |
e07d4801 | 1267 | } |
ef416fc2 | 1268 | } |
1269 | ||
1270 | value[0] = '\0'; | |
1271 | ||
e07d4801 MS |
1272 | DEBUG_puts("3httpGetSubField2: Returning NULL"); |
1273 | ||
ef416fc2 | 1274 | return (NULL); |
1275 | } | |
1276 | ||
1277 | ||
ef416fc2 | 1278 | /* |
1279 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1280 | */ | |
1281 | ||
1282 | char * /* O - Line or NULL */ | |
1283 | httpGets(char *line, /* I - Line to read into */ | |
1284 | int length, /* I - Max length of buffer */ | |
568fa3fa | 1285 | http_t *http) /* I - Connection to server */ |
ef416fc2 | 1286 | { |
1287 | char *lineptr, /* Pointer into line */ | |
1288 | *lineend, /* End of line */ | |
1289 | *bufptr, /* Pointer into input buffer */ | |
1290 | *bufend; /* Pointer to end of buffer */ | |
1291 | int bytes, /* Number of bytes read */ | |
1292 | eol; /* End-of-line? */ | |
1293 | ||
1294 | ||
e07d4801 | 1295 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1296 | |
1297 | if (http == NULL || line == NULL) | |
1298 | return (NULL); | |
1299 | ||
1300 | /* | |
1301 | * Read a line from the buffer... | |
1302 | */ | |
f11a948a MS |
1303 | |
1304 | http->error = 0; | |
1305 | lineptr = line; | |
1306 | lineend = line + length - 1; | |
1307 | eol = 0; | |
ef416fc2 | 1308 | |
1309 | while (lineptr < lineend) | |
1310 | { | |
1311 | /* | |
1312 | * Pre-load the buffer as needed... | |
1313 | */ | |
1314 | ||
1315 | #ifdef WIN32 | |
1316 | WSASetLastError(0); | |
1317 | #else | |
1318 | errno = 0; | |
1319 | #endif /* WIN32 */ | |
1320 | ||
1321 | while (http->used == 0) | |
1322 | { | |
1323 | /* | |
1324 | * No newline; see if there is more data to be read... | |
1325 | */ | |
1326 | ||
85dda01c | 1327 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1328 | { |
f228370c MS |
1329 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1330 | continue; | |
1331 | ||
e07d4801 | 1332 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1333 | #ifdef WIN32 |
1334 | http->error = WSAETIMEDOUT; | |
1335 | #else | |
89d46774 | 1336 | http->error = ETIMEDOUT; |
b86bc4cf | 1337 | #endif /* WIN32 */ |
ef416fc2 | 1338 | return (NULL); |
89d46774 | 1339 | } |
ef416fc2 | 1340 | |
1341 | #ifdef HAVE_SSL | |
1342 | if (http->tls) | |
1343 | bytes = http_read_ssl(http, http->buffer + http->used, | |
1344 | HTTP_MAX_BUFFER - http->used); | |
1345 | else | |
1346 | #endif /* HAVE_SSL */ | |
1347 | bytes = recv(http->fd, http->buffer + http->used, | |
1348 | HTTP_MAX_BUFFER - http->used, 0); | |
1349 | ||
e07d4801 | 1350 | DEBUG_printf(("4httpGets: read %d bytes...", bytes)); |
ef416fc2 | 1351 | |
1352 | if (bytes < 0) | |
1353 | { | |
1354 | /* | |
1355 | * Nope, can't get a line this time... | |
1356 | */ | |
1357 | ||
1358 | #ifdef WIN32 | |
cc754834 MS |
1359 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1360 | ||
10d09e33 | 1361 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1362 | continue; |
10d09e33 MS |
1363 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1364 | { | |
1365 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1366 | continue; | |
1367 | ||
1368 | http->error = WSAGetLastError(); | |
1369 | } | |
cc754834 | 1370 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1371 | { |
1372 | http->error = WSAGetLastError(); | |
1373 | continue; | |
1374 | } | |
1375 | ||
ef416fc2 | 1376 | #else |
e07d4801 | 1377 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1378 | |
10d09e33 | 1379 | if (errno == EINTR) |
ef416fc2 | 1380 | continue; |
10d09e33 MS |
1381 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1382 | { | |
1383 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1384 | continue; | |
1385 | else if (!http->timeout_cb && errno == EAGAIN) | |
1386 | continue; | |
1387 | ||
1388 | http->error = errno; | |
1389 | } | |
ef416fc2 | 1390 | else if (errno != http->error) |
1391 | { | |
1392 | http->error = errno; | |
1393 | continue; | |
1394 | } | |
1395 | #endif /* WIN32 */ | |
1396 | ||
1397 | return (NULL); | |
1398 | } | |
1399 | else if (bytes == 0) | |
1400 | { | |
1401 | http->error = EPIPE; | |
1402 | ||
1403 | return (NULL); | |
1404 | } | |
1405 | ||
1406 | /* | |
1407 | * Yup, update the amount used... | |
1408 | */ | |
1409 | ||
1410 | http->used += bytes; | |
1411 | } | |
1412 | ||
1413 | /* | |
1414 | * Now copy as much of the current line as possible... | |
1415 | */ | |
1416 | ||
1417 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1418 | lineptr < lineend && bufptr < bufend;) | |
1419 | { | |
1420 | if (*bufptr == 0x0a) | |
1421 | { | |
1422 | eol = 1; | |
1423 | bufptr ++; | |
1424 | break; | |
1425 | } | |
1426 | else if (*bufptr == 0x0d) | |
1427 | bufptr ++; | |
1428 | else | |
1429 | *lineptr++ = *bufptr++; | |
1430 | } | |
1431 | ||
b86bc4cf | 1432 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1433 | if (http->used > 0) |
1434 | memmove(http->buffer, bufptr, http->used); | |
1435 | ||
1436 | if (eol) | |
1437 | { | |
1438 | /* | |
1439 | * End of line... | |
1440 | */ | |
1441 | ||
1442 | http->activity = time(NULL); | |
1443 | ||
1444 | *lineptr = '\0'; | |
ef55b745 | 1445 | |
e07d4801 | 1446 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1447 | |
1448 | return (line); | |
1449 | } | |
1450 | } | |
1451 | ||
e07d4801 | 1452 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1453 | |
1454 | return (NULL); | |
1455 | } | |
1456 | ||
1457 | ||
1458 | /* | |
1459 | * 'httpHead()' - Send a HEAD request to the server. | |
1460 | */ | |
1461 | ||
1462 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1463 | httpHead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1464 | const char *uri) /* I - URI for head */ |
1465 | { | |
e07d4801 | 1466 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
ef416fc2 | 1467 | return (http_send(http, HTTP_HEAD, uri)); |
1468 | } | |
1469 | ||
1470 | ||
1471 | /* | |
1472 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1473 | * default HTTP proxy (if any). | |
1474 | */ | |
1475 | ||
1476 | void | |
1477 | httpInitialize(void) | |
1478 | { | |
6d2f911b MS |
1479 | static int initialized = 0; /* Have we been called before? */ |
1480 | #ifdef WIN32 | |
1481 | WSADATA winsockdata; /* WinSock data */ | |
1482 | #endif /* WIN32 */ | |
ef416fc2 | 1483 | #ifdef HAVE_LIBSSL |
6d2f911b MS |
1484 | int i; /* Looping var */ |
1485 | unsigned char data[1024]; /* Seed data */ | |
ef416fc2 | 1486 | #endif /* HAVE_LIBSSL */ |
1487 | ||
ef416fc2 | 1488 | |
6d2f911b MS |
1489 | _cupsGlobalLock(); |
1490 | if (initialized) | |
1491 | { | |
1492 | _cupsGlobalUnlock(); | |
1493 | return; | |
1494 | } | |
1495 | ||
1496 | #ifdef WIN32 | |
c7017ecc | 1497 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1498 | |
fa73b229 | 1499 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1500 | /* |
1501 | * Ignore SIGPIPE signals... | |
1502 | */ | |
1503 | ||
fa73b229 | 1504 | # ifdef HAVE_SIGSET |
1505 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1506 | |
fa73b229 | 1507 | # elif defined(HAVE_SIGACTION) |
1508 | struct sigaction action; /* POSIX sigaction data */ | |
1509 | ||
1510 | ||
ef416fc2 | 1511 | memset(&action, 0, sizeof(action)); |
1512 | action.sa_handler = SIG_IGN; | |
1513 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1514 | |
fa73b229 | 1515 | # else |
ef416fc2 | 1516 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1517 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1518 | #endif /* WIN32 */ |
1519 | ||
1520 | #ifdef HAVE_GNUTLS | |
6d2f911b MS |
1521 | /* |
1522 | * Initialize GNU TLS... | |
1523 | */ | |
1524 | ||
ef416fc2 | 1525 | gnutls_global_init(); |
ef416fc2 | 1526 | |
6d2f911b MS |
1527 | #elif defined(HAVE_LIBSSL) |
1528 | /* | |
1529 | * Initialize OpenSSL... | |
1530 | */ | |
1531 | ||
ef416fc2 | 1532 | SSL_load_error_strings(); |
1533 | SSL_library_init(); | |
1534 | ||
1535 | /* | |
1536 | * Using the current time is a dubious random seed, but on some systems | |
1537 | * it is the best we can do (on others, this seed isn't even used...) | |
1538 | */ | |
1539 | ||
6d2f911b | 1540 | CUPS_SRAND(time(NULL)); |
ef416fc2 | 1541 | |
1542 | for (i = 0; i < sizeof(data); i ++) | |
6d2f911b | 1543 | data[i] = CUPS_RAND(); |
ef416fc2 | 1544 | |
dfd5680b | 1545 | RAND_seed(data, sizeof(data)); |
6d2f911b MS |
1546 | #endif /* HAVE_GNUTLS */ |
1547 | ||
1548 | initialized = 1; | |
1549 | _cupsGlobalUnlock(); | |
ef416fc2 | 1550 | } |
1551 | ||
1552 | ||
1553 | /* | |
1554 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1555 | */ | |
1556 | ||
1557 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1558 | httpOptions(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1559 | const char *uri) /* I - URI for options */ |
1560 | { | |
1561 | return (http_send(http, HTTP_OPTIONS, uri)); | |
1562 | } | |
1563 | ||
1564 | ||
6d2f911b MS |
1565 | /* |
1566 | * '_httpPeek()' - Peek at data from a HTTP connection. | |
1567 | * | |
1568 | * This function copies available data from the given HTTP connection, reading | |
1569 | * a buffer as needed. The data is still available for reading using | |
1570 | * @link httpRead@ or @link httpRead2@. | |
1571 | * | |
1572 | * For non-blocking connections the usual timeouts apply. | |
1573 | */ | |
1574 | ||
1575 | ssize_t /* O - Number of bytes copied */ | |
1576 | _httpPeek(http_t *http, /* I - Connection to server */ | |
1577 | char *buffer, /* I - Buffer for data */ | |
1578 | size_t length) /* I - Maximum number of bytes */ | |
1579 | { | |
1580 | ssize_t bytes; /* Bytes read */ | |
1581 | char len[32]; /* Length string */ | |
1582 | ||
1583 | ||
1584 | DEBUG_printf(("_httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
1585 | http, buffer, CUPS_LLCAST length)); | |
1586 | ||
1587 | if (http == NULL || buffer == NULL) | |
1588 | return (-1); | |
1589 | ||
1590 | http->activity = time(NULL); | |
1591 | http->error = 0; | |
1592 | ||
1593 | if (length <= 0) | |
1594 | return (0); | |
1595 | ||
1596 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1597 | http->data_remaining <= 0) | |
1598 | { | |
1599 | DEBUG_puts("2_httpPeek: Getting chunk length..."); | |
1600 | ||
1601 | if (httpGets(len, sizeof(len), http) == NULL) | |
1602 | { | |
1603 | DEBUG_puts("1_httpPeek: Could not get length!"); | |
1604 | return (0); | |
1605 | } | |
1606 | ||
1607 | http->data_remaining = strtoll(len, NULL, 16); | |
1608 | if (http->data_remaining < 0) | |
1609 | { | |
1610 | DEBUG_puts("1_httpPeek: Negative chunk length!"); | |
1611 | return (0); | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | DEBUG_printf(("2_httpPeek: data_remaining=" CUPS_LLFMT, | |
1616 | CUPS_LLCAST http->data_remaining)); | |
1617 | ||
1618 | if (http->data_remaining <= 0) | |
1619 | { | |
1620 | /* | |
1621 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1622 | * data, go idle... | |
1623 | */ | |
1624 | ||
1625 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1626 | httpGets(len, sizeof(len), http); | |
1627 | ||
1628 | if (http->state == HTTP_POST_RECV) | |
1629 | http->state ++; | |
1630 | else | |
1631 | http->state = HTTP_WAITING; | |
1632 | ||
1633 | /* | |
1634 | * Prevent future reads for this request... | |
1635 | */ | |
1636 | ||
1637 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1638 | ||
1639 | return (0); | |
1640 | } | |
1641 | else if (length > (size_t)http->data_remaining) | |
1642 | length = (size_t)http->data_remaining; | |
1643 | ||
1644 | if (http->used == 0) | |
1645 | { | |
1646 | /* | |
1647 | * Buffer small reads for better performance... | |
1648 | */ | |
1649 | ||
f228370c MS |
1650 | if (!http->blocking) |
1651 | { | |
85dda01c | 1652 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1653 | { |
1654 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1655 | continue; | |
1656 | ||
1657 | return (0); | |
1658 | } | |
1659 | } | |
6d2f911b MS |
1660 | |
1661 | if (http->data_remaining > sizeof(http->buffer)) | |
1662 | bytes = sizeof(http->buffer); | |
1663 | else | |
1664 | bytes = http->data_remaining; | |
1665 | ||
1666 | #ifdef HAVE_SSL | |
1667 | if (http->tls) | |
1668 | bytes = http_read_ssl(http, http->buffer, bytes); | |
1669 | else | |
1670 | #endif /* HAVE_SSL */ | |
1671 | { | |
1672 | DEBUG_printf(("2_httpPeek: reading %d bytes from socket into buffer...", | |
1673 | (int)bytes)); | |
1674 | ||
1675 | bytes = recv(http->fd, http->buffer, bytes, 0); | |
1676 | ||
1677 | DEBUG_printf(("2_httpPeek: read %d bytes from socket into buffer...", | |
1678 | (int)bytes)); | |
1679 | } | |
1680 | ||
1681 | if (bytes > 0) | |
1682 | http->used = bytes; | |
1683 | else if (bytes < 0) | |
1684 | { | |
1685 | #ifdef WIN32 | |
cc754834 MS |
1686 | if (WSAGetLastError() != WSAEINTR && WSAGetLastError() != WSAEWOULDBLOCK) |
1687 | { | |
1688 | http->error = WSAGetLastError(); | |
1689 | return (-1); | |
1690 | } | |
6d2f911b MS |
1691 | #else |
1692 | if (errno != EINTR && errno != EAGAIN) | |
1693 | { | |
1694 | http->error = errno; | |
1695 | return (-1); | |
1696 | } | |
1697 | #endif /* WIN32 */ | |
1698 | } | |
1699 | else | |
1700 | { | |
1701 | http->error = EPIPE; | |
1702 | return (0); | |
1703 | } | |
1704 | } | |
1705 | ||
1706 | if (http->used > 0) | |
1707 | { | |
1708 | if (length > (size_t)http->used) | |
1709 | length = (size_t)http->used; | |
1710 | ||
1711 | bytes = (ssize_t)length; | |
1712 | ||
1713 | DEBUG_printf(("2_httpPeek: grabbing %d bytes from input buffer...", | |
1714 | (int)bytes)); | |
1715 | ||
1716 | memcpy(buffer, http->buffer, length); | |
1717 | } | |
1718 | else | |
1719 | bytes = 0; | |
1720 | ||
1721 | if (bytes < 0) | |
1722 | { | |
1723 | #ifdef WIN32 | |
cc754834 MS |
1724 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1725 | bytes = 0; | |
1726 | else | |
1727 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1728 | #else |
1729 | if (errno == EINTR || errno == EAGAIN) | |
1730 | bytes = 0; | |
1731 | else | |
1732 | http->error = errno; | |
1733 | #endif /* WIN32 */ | |
1734 | } | |
1735 | else if (bytes == 0) | |
1736 | { | |
1737 | http->error = EPIPE; | |
1738 | return (0); | |
1739 | } | |
1740 | ||
1741 | #ifdef DEBUG | |
1742 | http_debug_hex("_httpPeek", buffer, (int)bytes); | |
1743 | #endif /* DEBUG */ | |
1744 | ||
1745 | return (bytes); | |
1746 | } | |
1747 | ||
1748 | ||
ef416fc2 | 1749 | /* |
1750 | * 'httpPost()' - Send a POST request to the server. | |
1751 | */ | |
1752 | ||
1753 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1754 | httpPost(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1755 | const char *uri) /* I - URI for post */ |
1756 | { | |
1757 | return (http_send(http, HTTP_POST, uri)); | |
1758 | } | |
1759 | ||
1760 | ||
1761 | /* | |
1762 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1763 | * |
1764 | * @private@ | |
ef416fc2 | 1765 | */ |
1766 | ||
1767 | int /* O - Number of bytes written */ | |
568fa3fa | 1768 | httpPrintf(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1769 | const char *format, /* I - printf-style format string */ |
1770 | ...) /* I - Additional args as needed */ | |
1771 | { | |
1772 | int bytes; /* Number of bytes to write */ | |
1773 | char buf[16384]; /* Buffer for formatted string */ | |
1774 | va_list ap; /* Variable argument pointer */ | |
1775 | ||
1776 | ||
e07d4801 | 1777 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1778 | |
1779 | va_start(ap, format); | |
1780 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1781 | va_end(ap); | |
1782 | ||
e07d4801 | 1783 | DEBUG_printf(("3httpPrintf: %s", buf)); |
ef416fc2 | 1784 | |
d09495fa | 1785 | if (http->data_encoding == HTTP_ENCODE_FIELDS) |
1786 | return (httpWrite2(http, buf, bytes)); | |
1787 | else | |
ef416fc2 | 1788 | { |
d09495fa | 1789 | if (http->wused) |
1790 | { | |
e07d4801 | 1791 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1792 | |
d09495fa | 1793 | if (httpFlushWrite(http) < 0) |
1794 | return (-1); | |
1795 | } | |
ef416fc2 | 1796 | |
d09495fa | 1797 | return (http_write(http, buf, bytes)); |
1798 | } | |
ef416fc2 | 1799 | } |
1800 | ||
1801 | ||
1802 | /* | |
1803 | * 'httpPut()' - Send a PUT request to the server. | |
1804 | */ | |
1805 | ||
1806 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1807 | httpPut(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1808 | const char *uri) /* I - URI to put */ |
1809 | { | |
e07d4801 | 1810 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
ef416fc2 | 1811 | return (http_send(http, HTTP_PUT, uri)); |
1812 | } | |
1813 | ||
1814 | ||
1815 | /* | |
1816 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1817 | * |
1818 | * This function is deprecated. Use the httpRead2() function which can | |
1819 | * read more than 2GB of data. | |
1820 | * | |
1821 | * @deprecated@ | |
ef416fc2 | 1822 | */ |
1823 | ||
1824 | int /* O - Number of bytes read */ | |
568fa3fa | 1825 | httpRead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1826 | char *buffer, /* I - Buffer for data */ |
1827 | int length) /* I - Maximum number of bytes */ | |
1828 | { | |
a4d04587 | 1829 | return ((int)httpRead2(http, buffer, length)); |
1830 | } | |
1831 | ||
1832 | ||
1833 | /* | |
1834 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1835 | * |
426c6a59 | 1836 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 1837 | */ |
1838 | ||
1839 | ssize_t /* O - Number of bytes read */ | |
568fa3fa | 1840 | httpRead2(http_t *http, /* I - Connection to server */ |
a4d04587 | 1841 | char *buffer, /* I - Buffer for data */ |
1842 | size_t length) /* I - Maximum number of bytes */ | |
1843 | { | |
1844 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1845 | char len[32]; /* Length string */ |
1846 | ||
1847 | ||
e07d4801 | 1848 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
a603edef | 1849 | http, buffer, CUPS_LLCAST length)); |
ef416fc2 | 1850 | |
1851 | if (http == NULL || buffer == NULL) | |
1852 | return (-1); | |
1853 | ||
1854 | http->activity = time(NULL); | |
f11a948a | 1855 | http->error = 0; |
ef416fc2 | 1856 | |
1857 | if (length <= 0) | |
1858 | return (0); | |
1859 | ||
1860 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1861 | http->data_remaining <= 0) | |
1862 | { | |
e07d4801 | 1863 | DEBUG_puts("2httpRead2: Getting chunk length..."); |
ef416fc2 | 1864 | |
1865 | if (httpGets(len, sizeof(len), http) == NULL) | |
1866 | { | |
e07d4801 | 1867 | DEBUG_puts("1httpRead2: Could not get length!"); |
ef416fc2 | 1868 | return (0); |
1869 | } | |
1870 | ||
1871 | http->data_remaining = strtoll(len, NULL, 16); | |
1872 | if (http->data_remaining < 0) | |
1873 | { | |
e07d4801 | 1874 | DEBUG_puts("1httpRead2: Negative chunk length!"); |
ef416fc2 | 1875 | return (0); |
1876 | } | |
1877 | } | |
1878 | ||
e07d4801 | 1879 | DEBUG_printf(("2httpRead2: data_remaining=" CUPS_LLFMT, |
ef416fc2 | 1880 | CUPS_LLCAST http->data_remaining)); |
1881 | ||
1882 | if (http->data_remaining <= 0) | |
1883 | { | |
1884 | /* | |
1885 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1886 | * data, go idle... | |
1887 | */ | |
1888 | ||
1889 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1890 | httpGets(len, sizeof(len), http); | |
1891 | ||
1892 | if (http->state == HTTP_POST_RECV) | |
1893 | http->state ++; | |
1894 | else | |
1895 | http->state = HTTP_WAITING; | |
1896 | ||
1897 | /* | |
1898 | * Prevent future reads for this request... | |
1899 | */ | |
1900 | ||
1901 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1902 | ||
1903 | return (0); | |
1904 | } | |
b86bc4cf | 1905 | else if (length > (size_t)http->data_remaining) |
1906 | length = (size_t)http->data_remaining; | |
ef416fc2 | 1907 | |
1908 | if (http->used == 0 && length <= 256) | |
1909 | { | |
1910 | /* | |
1911 | * Buffer small reads for better performance... | |
1912 | */ | |
1913 | ||
83e08001 MS |
1914 | ssize_t buflen; /* Length of read for buffer */ |
1915 | ||
f228370c MS |
1916 | if (!http->blocking) |
1917 | { | |
85dda01c | 1918 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1919 | { |
1920 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1921 | continue; | |
1922 | ||
1923 | return (0); | |
1924 | } | |
1925 | } | |
ef416fc2 | 1926 | |
1927 | if (http->data_remaining > sizeof(http->buffer)) | |
83e08001 | 1928 | buflen = sizeof(http->buffer); |
ef416fc2 | 1929 | else |
83e08001 | 1930 | buflen = http->data_remaining; |
ef416fc2 | 1931 | |
83e08001 MS |
1932 | DEBUG_printf(("2httpRead2: Reading %d bytes into buffer.", (int)buflen)); |
1933 | ||
1934 | do | |
1935 | { | |
ef416fc2 | 1936 | #ifdef HAVE_SSL |
83e08001 MS |
1937 | if (http->tls) |
1938 | bytes = http_read_ssl(http, http->buffer, buflen); | |
1939 | else | |
ef416fc2 | 1940 | #endif /* HAVE_SSL */ |
83e08001 | 1941 | bytes = recv(http->fd, http->buffer, buflen, 0); |
ef416fc2 | 1942 | |
83e08001 | 1943 | if (bytes < 0) |
10d09e33 | 1944 | { |
83e08001 MS |
1945 | #ifdef WIN32 |
1946 | if (WSAGetLastError() != WSAEINTR) | |
10d09e33 | 1947 | { |
83e08001 | 1948 | http->error = WSAGetLastError(); |
10d09e33 MS |
1949 | return (-1); |
1950 | } | |
83e08001 MS |
1951 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1952 | { | |
1953 | if (!http->timeout_cb || | |
1954 | !(*http->timeout_cb)(http, http->timeout_data)) | |
1955 | { | |
1956 | http->error = WSAEWOULDBLOCK; | |
1957 | return (-1); | |
1958 | } | |
1959 | } | |
ef416fc2 | 1960 | #else |
83e08001 | 1961 | if (errno == EWOULDBLOCK || errno == EAGAIN) |
10d09e33 | 1962 | { |
83e08001 MS |
1963 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) |
1964 | { | |
1965 | http->error = errno; | |
1966 | return (-1); | |
1967 | } | |
1968 | else if (!http->timeout_cb && errno != EAGAIN) | |
1969 | { | |
1970 | http->error = errno; | |
1971 | return (-1); | |
1972 | } | |
10d09e33 | 1973 | } |
83e08001 | 1974 | else if (errno != EINTR) |
10d09e33 MS |
1975 | { |
1976 | http->error = errno; | |
1977 | return (-1); | |
1978 | } | |
ef416fc2 | 1979 | #endif /* WIN32 */ |
83e08001 | 1980 | } |
ef416fc2 | 1981 | } |
83e08001 MS |
1982 | while (bytes < 0); |
1983 | ||
1984 | DEBUG_printf(("2httpRead2: Read %d bytes into buffer.", (int)bytes)); | |
1985 | ||
1986 | http->used = bytes; | |
ef416fc2 | 1987 | } |
1988 | ||
1989 | if (http->used > 0) | |
1990 | { | |
b86bc4cf | 1991 | if (length > (size_t)http->used) |
1992 | length = (size_t)http->used; | |
ef416fc2 | 1993 | |
b86bc4cf | 1994 | bytes = (ssize_t)length; |
ef416fc2 | 1995 | |
e07d4801 | 1996 | DEBUG_printf(("2httpRead2: grabbing %d bytes from input buffer...", |
a603edef | 1997 | (int)bytes)); |
ef416fc2 | 1998 | |
1999 | memcpy(buffer, http->buffer, length); | |
b86bc4cf | 2000 | http->used -= (int)length; |
ef416fc2 | 2001 | |
2002 | if (http->used > 0) | |
2003 | memmove(http->buffer, http->buffer + length, http->used); | |
2004 | } | |
2005 | #ifdef HAVE_SSL | |
2006 | else if (http->tls) | |
2007 | { | |
f228370c MS |
2008 | if (!http->blocking) |
2009 | { | |
85dda01c | 2010 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
2011 | { |
2012 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2013 | continue; | |
2014 | ||
2015 | return (0); | |
2016 | } | |
2017 | } | |
ef416fc2 | 2018 | |
83e08001 MS |
2019 | while ((bytes = (ssize_t)http_read_ssl(http, buffer, (int)length)) < 0) |
2020 | { | |
2021 | #ifdef WIN32 | |
2022 | if (WSAGetLastError() == WSAEWOULDBLOCK) | |
2023 | { | |
2024 | if (!http->timeout_cb || !(*http->timeout_cb)(http, http->timeout_data)) | |
2025 | break; | |
2026 | } | |
2027 | else if (WSAGetLastError() != WSAEINTR) | |
2028 | break; | |
2029 | #else | |
2030 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
2031 | { | |
2032 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
2033 | break; | |
2034 | else if (!http->timeout_cb && errno != EAGAIN) | |
2035 | break; | |
2036 | } | |
2037 | else if (errno != EINTR) | |
2038 | break; | |
2039 | #endif /* WIN32 */ | |
2040 | } | |
ef416fc2 | 2041 | } |
2042 | #endif /* HAVE_SSL */ | |
2043 | else | |
2044 | { | |
f228370c MS |
2045 | if (!http->blocking) |
2046 | { | |
85dda01c | 2047 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
2048 | { |
2049 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2050 | continue; | |
2051 | ||
2052 | return (0); | |
2053 | } | |
2054 | } | |
ef416fc2 | 2055 | |
e07d4801 | 2056 | DEBUG_printf(("2httpRead2: reading " CUPS_LLFMT " bytes from socket...", |
a603edef | 2057 | CUPS_LLCAST length)); |
ef416fc2 | 2058 | |
b86bc4cf | 2059 | #ifdef WIN32 |
10d09e33 MS |
2060 | while ((bytes = (ssize_t)recv(http->fd, buffer, (int)length, 0)) < 0) |
2061 | { | |
2062 | if (WSAGetLastError() == WSAEWOULDBLOCK) | |
2063 | { | |
2064 | if (!http->timeout_cb || !(*http->timeout_cb)(http, http->timeout_data)) | |
2065 | break; | |
2066 | } | |
2067 | else if (WSAGetLastError() != WSAEINTR) | |
cc754834 | 2068 | break; |
10d09e33 | 2069 | } |
b86bc4cf | 2070 | #else |
ef416fc2 | 2071 | while ((bytes = recv(http->fd, buffer, length, 0)) < 0) |
10d09e33 MS |
2072 | { |
2073 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
2074 | { | |
2075 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
2076 | break; | |
2077 | else if (!http->timeout_cb && errno != EAGAIN) | |
2078 | break; | |
2079 | } | |
2080 | else if (errno != EINTR) | |
ef416fc2 | 2081 | break; |
10d09e33 | 2082 | } |
b86bc4cf | 2083 | #endif /* WIN32 */ |
ef416fc2 | 2084 | |
e07d4801 | 2085 | DEBUG_printf(("2httpRead2: read " CUPS_LLFMT " bytes from socket...", |
a603edef | 2086 | CUPS_LLCAST bytes)); |
ef416fc2 | 2087 | } |
2088 | ||
2089 | if (bytes > 0) | |
2090 | { | |
2091 | http->data_remaining -= bytes; | |
2092 | ||
2093 | if (http->data_remaining <= INT_MAX) | |
2094 | http->_data_remaining = (int)http->data_remaining; | |
2095 | else | |
2096 | http->_data_remaining = INT_MAX; | |
2097 | } | |
2098 | else if (bytes < 0) | |
2099 | { | |
2100 | #ifdef WIN32 | |
10d09e33 | 2101 | if (WSAGetLastError() == WSAEINTR) |
cc754834 MS |
2102 | bytes = 0; |
2103 | else | |
2104 | http->error = WSAGetLastError(); | |
ef416fc2 | 2105 | #else |
10d09e33 | 2106 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) |
ef416fc2 | 2107 | bytes = 0; |
2108 | else | |
2109 | http->error = errno; | |
2110 | #endif /* WIN32 */ | |
2111 | } | |
2112 | else | |
2113 | { | |
2114 | http->error = EPIPE; | |
2115 | return (0); | |
2116 | } | |
2117 | ||
2118 | if (http->data_remaining == 0) | |
2119 | { | |
2120 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
2121 | httpGets(len, sizeof(len), http); | |
2122 | ||
2123 | if (http->data_encoding != HTTP_ENCODE_CHUNKED) | |
2124 | { | |
2125 | if (http->state == HTTP_POST_RECV) | |
2126 | http->state ++; | |
2127 | else | |
2128 | http->state = HTTP_WAITING; | |
2129 | } | |
2130 | } | |
2131 | ||
2132 | #ifdef DEBUG | |
ae71f5de | 2133 | http_debug_hex("httpRead2", buffer, (int)bytes); |
ef416fc2 | 2134 | #endif /* DEBUG */ |
2135 | ||
2136 | return (bytes); | |
2137 | } | |
2138 | ||
2139 | ||
2140 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
2141 | /* | |
411affcf | 2142 | * '_httpReadCDSA()' - Read function for the CDSA library. |
ef416fc2 | 2143 | */ |
2144 | ||
2145 | OSStatus /* O - -1 on error, 0 on success */ | |
2146 | _httpReadCDSA( | |
2147 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2148 | void *data, /* I - Data buffer */ | |
2149 | size_t *dataLength) /* IO - Number of bytes */ | |
2150 | { | |
411affcf | 2151 | OSStatus result; /* Return value */ |
2152 | ssize_t bytes; /* Number of bytes read */ | |
2153 | http_t *http; /* HTTP connection */ | |
2154 | ||
2155 | ||
2156 | http = (http_t *)connection; | |
e53920b9 | 2157 | |
411affcf | 2158 | if (!http->blocking) |
2159 | { | |
2160 | /* | |
2161 | * Make sure we have data before we read... | |
2162 | */ | |
e53920b9 | 2163 | |
85dda01c | 2164 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 2165 | { |
f228370c MS |
2166 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2167 | continue; | |
2168 | ||
411affcf | 2169 | http->error = ETIMEDOUT; |
2170 | return (-1); | |
2171 | } | |
2172 | } | |
ef416fc2 | 2173 | |
b423cd4c | 2174 | do |
411affcf | 2175 | { |
2176 | bytes = recv(http->fd, data, *dataLength, 0); | |
2177 | } | |
e07d4801 | 2178 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 2179 | |
b423cd4c | 2180 | if (bytes == *dataLength) |
411affcf | 2181 | { |
b423cd4c | 2182 | result = 0; |
411affcf | 2183 | } |
b423cd4c | 2184 | else if (bytes > 0) |
2185 | { | |
2186 | *dataLength = bytes; | |
2187 | result = errSSLWouldBlock; | |
2188 | } | |
2189 | else | |
2190 | { | |
2191 | *dataLength = 0; | |
fa73b229 | 2192 | |
2193 | if (bytes == 0) | |
ed486911 | 2194 | result = errSSLClosedGraceful; |
b423cd4c | 2195 | else if (errno == EAGAIN) |
2196 | result = errSSLWouldBlock; | |
b423cd4c | 2197 | else |
ed486911 | 2198 | result = errSSLClosedAbort; |
ef416fc2 | 2199 | } |
b423cd4c | 2200 | |
411affcf | 2201 | return (result); |
ef416fc2 | 2202 | } |
2203 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
2204 | ||
2205 | ||
411affcf | 2206 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
2207 | /* | |
2208 | * '_httpReadGNUTLS()' - Read function for the GNU TLS library. | |
2209 | */ | |
2210 | ||
2211 | ssize_t /* O - Number of bytes read or -1 on error */ | |
2212 | _httpReadGNUTLS( | |
568fa3fa | 2213 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 2214 | void *data, /* I - Buffer */ |
2215 | size_t length) /* I - Number of bytes to read */ | |
2216 | { | |
2217 | http_t *http; /* HTTP connection */ | |
a4845881 MS |
2218 | ssize_t bytes; /* Bytes read */ |
2219 | ||
411affcf | 2220 | |
a4845881 | 2221 | DEBUG_printf(("6_httpReadGNUTLS(ptr=%p, data=%p, length=%d)", ptr, data, (int)length)); |
411affcf | 2222 | |
2223 | http = (http_t *)ptr; | |
2224 | ||
2225 | if (!http->blocking) | |
2226 | { | |
2227 | /* | |
2228 | * Make sure we have data before we read... | |
2229 | */ | |
2230 | ||
85dda01c | 2231 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 2232 | { |
f228370c MS |
2233 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2234 | continue; | |
2235 | ||
411affcf | 2236 | http->error = ETIMEDOUT; |
2237 | return (-1); | |
2238 | } | |
2239 | } | |
2240 | ||
a4845881 MS |
2241 | bytes = recv(http->fd, data, length, 0); |
2242 | DEBUG_printf(("6_httpReadGNUTLS: bytes=%d", (int)bytes)); | |
2243 | return (bytes); | |
411affcf | 2244 | } |
2245 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
2246 | ||
2247 | ||
ef416fc2 | 2248 | /* |
ecdc0628 | 2249 | * 'httpReconnect()' - Reconnect to a HTTP server. |
ef416fc2 | 2250 | */ |
2251 | ||
2252 | int /* O - 0 on success, non-zero on failure */ | |
568fa3fa | 2253 | httpReconnect(http_t *http) /* I - Connection to server */ |
ef416fc2 | 2254 | { |
2255 | http_addrlist_t *addr; /* Connected address */ | |
1ff0402e MS |
2256 | #ifdef DEBUG |
2257 | http_addrlist_t *current; /* Current address */ | |
2258 | char temp[256]; /* Temporary address string */ | |
2259 | #endif /* DEBUG */ | |
ef416fc2 | 2260 | |
2261 | ||
e07d4801 | 2262 | DEBUG_printf(("httpReconnect(http=%p)", http)); |
ef416fc2 | 2263 | |
2264 | if (!http) | |
2265 | return (-1); | |
2266 | ||
2267 | #ifdef HAVE_SSL | |
2268 | if (http->tls) | |
1ff0402e | 2269 | { |
e07d4801 | 2270 | DEBUG_puts("2httpReconnect: Shutting down SSL/TLS..."); |
ef416fc2 | 2271 | http_shutdown_ssl(http); |
1ff0402e | 2272 | } |
ef416fc2 | 2273 | #endif /* HAVE_SSL */ |
2274 | ||
2275 | /* | |
2276 | * Close any previously open socket... | |
2277 | */ | |
2278 | ||
2279 | if (http->fd >= 0) | |
bd7854cb | 2280 | { |
e07d4801 | 2281 | DEBUG_printf(("2httpReconnect: Closing socket %d...", http->fd)); |
1ff0402e | 2282 | |
ef416fc2 | 2283 | #ifdef WIN32 |
2284 | closesocket(http->fd); | |
2285 | #else | |
2286 | close(http->fd); | |
2287 | #endif /* WIN32 */ | |
2288 | ||
bd7854cb | 2289 | http->fd = -1; |
2290 | } | |
2291 | ||
ef416fc2 | 2292 | /* |
2293 | * Connect to the server... | |
2294 | */ | |
2295 | ||
1ff0402e MS |
2296 | #ifdef DEBUG |
2297 | for (current = http->addrlist; current; current = current->next) | |
e07d4801 | 2298 | DEBUG_printf(("2httpReconnect: Address %s:%d", |
1ff0402e MS |
2299 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
2300 | _httpAddrPort(&(current->addr)))); | |
2301 | #endif /* DEBUG */ | |
2302 | ||
ef416fc2 | 2303 | if ((addr = httpAddrConnect(http->addrlist, &(http->fd))) == NULL) |
2304 | { | |
2305 | /* | |
2306 | * Unable to connect... | |
2307 | */ | |
2308 | ||
2309 | #ifdef WIN32 | |
2310 | http->error = WSAGetLastError(); | |
2311 | #else | |
2312 | http->error = errno; | |
2313 | #endif /* WIN32 */ | |
2314 | http->status = HTTP_ERROR; | |
2315 | ||
e07d4801 | 2316 | DEBUG_printf(("1httpReconnect: httpAddrConnect failed: %s", |
1ff0402e MS |
2317 | strerror(http->error))); |
2318 | ||
ef416fc2 | 2319 | return (-1); |
2320 | } | |
2321 | ||
e07d4801 | 2322 | DEBUG_printf(("2httpReconnect: New socket=%d", http->fd)); |
1ff0402e | 2323 | |
85dda01c MS |
2324 | if (http->timeout_value > 0) |
2325 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2326 | |
ef416fc2 | 2327 | http->hostaddr = &(addr->addr); |
2328 | http->error = 0; | |
2329 | http->status = HTTP_CONTINUE; | |
10ddcf65 | 2330 | http->state = HTTP_WAITING; |
ef416fc2 | 2331 | |
2332 | #ifdef HAVE_SSL | |
2333 | if (http->encryption == HTTP_ENCRYPT_ALWAYS) | |
2334 | { | |
2335 | /* | |
2336 | * Always do encryption via SSL. | |
2337 | */ | |
2338 | ||
2339 | if (http_setup_ssl(http) != 0) | |
2340 | { | |
f7deaa1a | 2341 | # ifdef WIN32 |
ef416fc2 | 2342 | closesocket(http->fd); |
f7deaa1a | 2343 | # else |
ef416fc2 | 2344 | close(http->fd); |
f7deaa1a | 2345 | # endif /* WIN32 */ |
ef416fc2 | 2346 | |
2347 | return (-1); | |
2348 | } | |
2349 | } | |
2350 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED) | |
2351 | return (http_upgrade(http)); | |
2352 | #endif /* HAVE_SSL */ | |
2353 | ||
e07d4801 | 2354 | DEBUG_printf(("1httpReconnect: Connected to %s:%d...", |
1ff0402e MS |
2355 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
2356 | _httpAddrPort(http->hostaddr))); | |
2357 | ||
ef416fc2 | 2358 | return (0); |
2359 | } | |
2360 | ||
2361 | ||
355e94dc MS |
2362 | /* |
2363 | * 'httpSetAuthString()' - Set the current authorization string. | |
2364 | * | |
2365 | * This function just stores a copy of the current authorization string in | |
2366 | * the HTTP connection object. You must still call httpSetField() to set | |
2367 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2368 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2369 | * | |
426c6a59 | 2370 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
2371 | */ |
2372 | ||
2373 | void | |
568fa3fa | 2374 | httpSetAuthString(http_t *http, /* I - Connection to server */ |
355e94dc MS |
2375 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2376 | const char *data) /* I - Auth data (NULL for none) */ | |
2377 | { | |
2378 | /* | |
2379 | * Range check input... | |
2380 | */ | |
2381 | ||
2382 | if (!http) | |
2383 | return; | |
2384 | ||
2385 | if (http->authstring && http->authstring != http->_authstring) | |
2386 | free(http->authstring); | |
2387 | ||
2388 | http->authstring = http->_authstring; | |
2389 | ||
2390 | if (scheme) | |
2391 | { | |
2392 | /* | |
2393 | * Set the current authorization string... | |
2394 | */ | |
2395 | ||
2396 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 2397 | char *temp; |
355e94dc MS |
2398 | |
2399 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
2400 | { |
2401 | if ((temp = malloc(len)) == NULL) | |
2402 | len = sizeof(http->_authstring); | |
2403 | else | |
2404 | http->authstring = temp; | |
2405 | } | |
355e94dc MS |
2406 | |
2407 | if (data) | |
2408 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2409 | else | |
2410 | strlcpy(http->authstring, scheme, len); | |
2411 | } | |
2412 | else | |
2413 | { | |
2414 | /* | |
2415 | * Clear the current authorization string... | |
2416 | */ | |
2417 | ||
2418 | http->_authstring[0] = '\0'; | |
2419 | } | |
2420 | } | |
2421 | ||
2422 | ||
7cf5915e MS |
2423 | /* |
2424 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2425 | * connection. | |
2426 | * | |
321d8d57 | 2427 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
2428 | */ |
2429 | ||
2430 | int /* O - Status of call (0 = success) */ | |
2431 | httpSetCredentials(http_t *http, /* I - Connection to server */ | |
2432 | cups_array_t *credentials) /* I - Array of credentials */ | |
2433 | { | |
2434 | if (!http || cupsArrayCount(credentials) < 1) | |
2435 | return (-1); | |
2436 | ||
2437 | _httpFreeCredentials(http->tls_credentials); | |
2438 | ||
85dda01c | 2439 | http->tls_credentials = _httpCreateCredentials(credentials); |
7cf5915e MS |
2440 | |
2441 | return (http->tls_credentials ? 0 : -1); | |
2442 | } | |
2443 | ||
2444 | ||
ef416fc2 | 2445 | /* |
6d2f911b | 2446 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2447 | * |
426c6a59 | 2448 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 2449 | */ |
2450 | ||
2451 | void | |
2452 | httpSetCookie(http_t *http, /* I - Connection */ | |
2453 | const char *cookie) /* I - Cookie string */ | |
2454 | { | |
2455 | if (!http) | |
2456 | return; | |
2457 | ||
2458 | if (http->cookie) | |
2459 | free(http->cookie); | |
2460 | ||
2461 | if (cookie) | |
2462 | http->cookie = strdup(cookie); | |
2463 | else | |
2464 | http->cookie = NULL; | |
2465 | } | |
2466 | ||
2467 | ||
b423cd4c | 2468 | /* |
2469 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2470 | * | |
2471 | * Currently only HTTP_CONTINUE is supported for the "expect" argument. | |
2472 | * | |
426c6a59 | 2473 | * @since CUPS 1.2/Mac OS X 10.5@ |
b423cd4c | 2474 | */ |
2475 | ||
2476 | void | |
568fa3fa | 2477 | httpSetExpect(http_t *http, /* I - Connection to server */ |
b423cd4c | 2478 | http_status_t expect) /* I - HTTP status to expect (HTTP_CONTINUE) */ |
2479 | { | |
2480 | if (http) | |
2481 | http->expect = expect; | |
2482 | } | |
2483 | ||
2484 | ||
ef416fc2 | 2485 | /* |
2486 | * 'httpSetField()' - Set the value of an HTTP header. | |
2487 | */ | |
2488 | ||
2489 | void | |
568fa3fa | 2490 | httpSetField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2491 | http_field_t field, /* I - Field index */ |
2492 | const char *value) /* I - Value */ | |
2493 | { | |
2494 | if (http == NULL || | |
2495 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
2496 | field > HTTP_FIELD_WWW_AUTHENTICATE || | |
2497 | value == NULL) | |
2498 | return; | |
2499 | ||
2500 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
f7deaa1a | 2501 | |
f7deaa1a | 2502 | if (field == HTTP_FIELD_AUTHORIZATION) |
2503 | { | |
e07d4801 MS |
2504 | /* |
2505 | * Special case for Authorization: as its contents can be | |
2506 | * longer than HTTP_MAX_VALUE | |
2507 | */ | |
2508 | ||
f7deaa1a | 2509 | if (http->field_authorization) |
2510 | free(http->field_authorization); | |
2511 | ||
2512 | http->field_authorization = strdup(value); | |
2513 | } | |
e07d4801 MS |
2514 | else if (field == HTTP_FIELD_HOST) |
2515 | { | |
2516 | /* | |
f11a948a MS |
2517 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2518 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2519 | */ |
2520 | ||
178cb736 MS |
2521 | char *ptr = strchr(value, ':'); |
2522 | ||
2523 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2524 | { |
2525 | /* | |
2526 | * Bracket IPv6 numeric addresses... | |
2527 | * | |
2528 | * This is slightly inefficient (basically copying twice), but is an edge | |
2529 | * case and not worth optimizing... | |
2530 | */ | |
e07d4801 | 2531 | |
f11a948a MS |
2532 | snprintf(http->fields[HTTP_FIELD_HOST], |
2533 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2534 | } | |
2535 | else | |
e07d4801 | 2536 | { |
f11a948a MS |
2537 | /* |
2538 | * Check for a trailing dot on the hostname... | |
2539 | */ | |
2540 | ||
178cb736 | 2541 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2542 | |
2543 | if (*ptr) | |
2544 | { | |
2545 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2546 | |
f11a948a MS |
2547 | if (*ptr == '.') |
2548 | *ptr = '\0'; | |
2549 | } | |
e07d4801 MS |
2550 | } |
2551 | } | |
ef416fc2 | 2552 | } |
2553 | ||
2554 | ||
2555 | /* | |
2556 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2557 | * | |
426c6a59 | 2558 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 2559 | */ |
2560 | ||
2561 | void | |
568fa3fa | 2562 | httpSetLength(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2563 | size_t length) /* I - Length (0 for chunked) */ |
2564 | { | |
2565 | if (!http) | |
2566 | return; | |
2567 | ||
2568 | if (!length) | |
2569 | { | |
2570 | strcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked"); | |
2571 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; | |
2572 | } | |
2573 | else | |
2574 | { | |
2575 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2576 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2577 | CUPS_LLFMT, CUPS_LLCAST length); | |
2578 | } | |
2579 | } | |
2580 | ||
2581 | ||
10d09e33 | 2582 | /* |
f228370c | 2583 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2584 | * |
2585 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2586 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2587 | * | |
2588 | * @since CUPS 1.5/Mac OS X 10.7@ | |
10d09e33 MS |
2589 | */ |
2590 | ||
2591 | void | |
f228370c MS |
2592 | httpSetTimeout( |
2593 | http_t *http, /* I - Connection to server */ | |
2594 | double timeout, /* I - Number of seconds for timeout, | |
10d09e33 | 2595 | must be greater than 0 */ |
f228370c MS |
2596 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2597 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2598 | { |
2599 | if (!http || timeout <= 0.0) | |
2600 | return; | |
2601 | ||
85dda01c MS |
2602 | http->timeout_cb = cb; |
2603 | http->timeout_data = user_data; | |
2604 | http->timeout_value = timeout; | |
10d09e33 MS |
2605 | |
2606 | if (http->fd >= 0) | |
85dda01c | 2607 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2608 | |
85dda01c | 2609 | http_set_wait(http); |
10d09e33 MS |
2610 | } |
2611 | ||
2612 | ||
ef416fc2 | 2613 | /* |
2614 | * 'httpTrace()' - Send an TRACE request to the server. | |
2615 | */ | |
2616 | ||
2617 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 2618 | httpTrace(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2619 | const char *uri) /* I - URI for trace */ |
2620 | { | |
2621 | return (http_send(http, HTTP_TRACE, uri)); | |
2622 | } | |
2623 | ||
2624 | ||
2625 | /* | |
e60ec91f MS |
2626 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2627 | * | |
2628 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2629 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2630 | */ |
2631 | ||
e60ec91f MS |
2632 | int /* O - 1 to continue, 0 to stop */ |
2633 | _httpUpdate(http_t *http, /* I - Connection to server */ | |
2634 | http_status_t *status) /* O - Current HTTP status */ | |
ef416fc2 | 2635 | { |
2636 | char line[32768], /* Line from connection... */ | |
2637 | *value; /* Pointer to value on line */ | |
2638 | http_field_t field; /* Field index */ | |
e60ec91f | 2639 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2640 | |
2641 | ||
e60ec91f | 2642 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
f11a948a | 2643 | http_states[http->state])); |
ef416fc2 | 2644 | |
2645 | /* | |
e60ec91f | 2646 | * Grab a single line from the connection... |
ef416fc2 | 2647 | */ |
2648 | ||
e60ec91f | 2649 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2650 | { |
e60ec91f MS |
2651 | *status = HTTP_ERROR; |
2652 | return (0); | |
ef416fc2 | 2653 | } |
2654 | ||
e60ec91f | 2655 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2656 | |
e60ec91f | 2657 | if (line[0] == '\0') |
ef416fc2 | 2658 | { |
e60ec91f MS |
2659 | /* |
2660 | * Blank line means the start of the data section (if any). Return | |
2661 | * the result code, too... | |
2662 | * | |
2663 | * If we get status 100 (HTTP_CONTINUE), then we *don't* change states. | |
2664 | * Instead, we just return HTTP_CONTINUE to the caller and keep on | |
2665 | * tryin'... | |
2666 | */ | |
ef416fc2 | 2667 | |
e60ec91f | 2668 | if (http->status == HTTP_CONTINUE) |
ef416fc2 | 2669 | { |
e60ec91f MS |
2670 | *status = http->status; |
2671 | return (0); | |
2672 | } | |
ef416fc2 | 2673 | |
e60ec91f MS |
2674 | if (http->status < HTTP_BAD_REQUEST) |
2675 | http->digest_tries = 0; | |
ef416fc2 | 2676 | |
2677 | #ifdef HAVE_SSL | |
e60ec91f MS |
2678 | if (http->status == HTTP_SWITCHING_PROTOCOLS && !http->tls) |
2679 | { | |
2680 | if (http_setup_ssl(http) != 0) | |
ef416fc2 | 2681 | { |
ef416fc2 | 2682 | # ifdef WIN32 |
e60ec91f | 2683 | closesocket(http->fd); |
ef416fc2 | 2684 | # else |
e60ec91f | 2685 | close(http->fd); |
ef416fc2 | 2686 | # endif /* WIN32 */ |
2687 | ||
e60ec91f MS |
2688 | *status = http->status = HTTP_ERROR; |
2689 | return (0); | |
ef416fc2 | 2690 | } |
e60ec91f MS |
2691 | |
2692 | *status = HTTP_CONTINUE; | |
2693 | return (0); | |
2694 | } | |
ef416fc2 | 2695 | #endif /* HAVE_SSL */ |
2696 | ||
e60ec91f | 2697 | httpGetLength2(http); |
ef416fc2 | 2698 | |
e60ec91f MS |
2699 | switch (http->state) |
2700 | { | |
2701 | case HTTP_GET : | |
2702 | case HTTP_POST : | |
2703 | case HTTP_POST_RECV : | |
2704 | case HTTP_PUT : | |
2705 | http->state ++; | |
2706 | case HTTP_POST_SEND : | |
2707 | case HTTP_HEAD : | |
2708 | break; | |
ef416fc2 | 2709 | |
e60ec91f MS |
2710 | default : |
2711 | http->state = HTTP_WAITING; | |
2712 | break; | |
ef416fc2 | 2713 | } |
e60ec91f MS |
2714 | |
2715 | *status = http->status; | |
2716 | return (0); | |
2717 | } | |
2718 | else if (!strncmp(line, "HTTP/", 5)) | |
2719 | { | |
2720 | /* | |
2721 | * Got the beginning of a response... | |
2722 | */ | |
2723 | ||
2724 | int intstatus; /* Status value as an integer */ | |
2725 | ||
2726 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
2727 | { | |
2728 | *status = http->status = HTTP_ERROR; | |
2729 | return (0); | |
2730 | } | |
2731 | ||
2732 | http->version = (http_version_t)(major * 100 + minor); | |
2733 | *status = http->status = (http_status_t)intstatus; | |
2734 | } | |
2735 | else if ((value = strchr(line, ':')) != NULL) | |
2736 | { | |
2737 | /* | |
2738 | * Got a value... | |
2739 | */ | |
2740 | ||
2741 | *value++ = '\0'; | |
2742 | while (_cups_isspace(*value)) | |
2743 | value ++; | |
2744 | ||
2745 | /* | |
2746 | * Be tolerants of servers that send unknown attribute fields... | |
2747 | */ | |
2748 | ||
88f9aafc | 2749 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 2750 | { |
2751 | /* | |
e60ec91f | 2752 | * "Expect: 100-continue" or similar... |
ef416fc2 | 2753 | */ |
2754 | ||
e60ec91f | 2755 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 2756 | } |
88f9aafc | 2757 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 2758 | { |
2759 | /* | |
e60ec91f | 2760 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 2761 | */ |
2762 | ||
e60ec91f MS |
2763 | httpSetCookie(http, value); |
2764 | } | |
2765 | else if ((field = http_field(line)) != HTTP_FIELD_UNKNOWN) | |
2766 | httpSetField(http, field, value); | |
2767 | #ifdef DEBUG | |
2768 | else | |
2769 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
2770 | #endif /* DEBUG */ | |
2771 | } | |
2772 | else | |
2773 | { | |
2774 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
2775 | *status = http->status = HTTP_ERROR; | |
2776 | return (0); | |
2777 | } | |
ef416fc2 | 2778 | |
e60ec91f MS |
2779 | return (1); |
2780 | } | |
ef416fc2 | 2781 | |
ef416fc2 | 2782 | |
e60ec91f MS |
2783 | /* |
2784 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
2785 | */ | |
ef416fc2 | 2786 | |
e60ec91f MS |
2787 | http_status_t /* O - HTTP status */ |
2788 | httpUpdate(http_t *http) /* I - Connection to server */ | |
2789 | { | |
2790 | http_status_t status; /* Request status */ | |
2791 | ||
2792 | ||
2793 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
2794 | http_states[http->state])); | |
2795 | ||
2796 | /* | |
2797 | * Flush pending data, if any... | |
2798 | */ | |
2799 | ||
2800 | if (http->wused) | |
2801 | { | |
2802 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
2803 | ||
2804 | if (httpFlushWrite(http) < 0) | |
ef416fc2 | 2805 | return (HTTP_ERROR); |
ef416fc2 | 2806 | } |
2807 | ||
e60ec91f MS |
2808 | /* |
2809 | * If we haven't issued any commands, then there is nothing to "update"... | |
2810 | */ | |
2811 | ||
2812 | if (http->state == HTTP_WAITING) | |
2813 | return (HTTP_CONTINUE); | |
2814 | ||
2815 | /* | |
2816 | * Grab all of the lines we can from the connection... | |
2817 | */ | |
2818 | ||
2819 | while (_httpUpdate(http, &status)); | |
2820 | ||
ef416fc2 | 2821 | /* |
2822 | * See if there was an error... | |
2823 | */ | |
2824 | ||
2825 | if (http->error == EPIPE && http->status > HTTP_CONTINUE) | |
e07d4801 MS |
2826 | { |
2827 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 2828 | return (http->status); |
e07d4801 | 2829 | } |
ef416fc2 | 2830 | |
2831 | if (http->error) | |
2832 | { | |
e07d4801 | 2833 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 2834 | strerror(http->error))); |
2835 | http->status = HTTP_ERROR; | |
2836 | return (HTTP_ERROR); | |
2837 | } | |
2838 | ||
2839 | /* | |
e60ec91f | 2840 | * Return the current status... |
ef416fc2 | 2841 | */ |
2842 | ||
e60ec91f | 2843 | return (status); |
ef416fc2 | 2844 | } |
2845 | ||
2846 | ||
38e73f87 MS |
2847 | /* |
2848 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
2849 | */ | |
2850 | ||
2851 | int /* O - 1 if data is available, 0 otherwise */ | |
2852 | _httpWait(http_t *http, /* I - Connection to server */ | |
2853 | int msec, /* I - Milliseconds to wait */ | |
2854 | int usessl) /* I - Use SSL context? */ | |
2855 | { | |
2856 | #ifdef HAVE_POLL | |
2857 | struct pollfd pfd; /* Polled file descriptor */ | |
2858 | #else | |
2859 | fd_set input_set; /* select() input set */ | |
2860 | struct timeval timeout; /* Timeout */ | |
2861 | #endif /* HAVE_POLL */ | |
2862 | int nfds; /* Result from select()/poll() */ | |
2863 | ||
2864 | ||
e07d4801 | 2865 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
2866 | |
2867 | if (http->fd < 0) | |
f8b3a85b MS |
2868 | { |
2869 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 2870 | return (0); |
f8b3a85b | 2871 | } |
38e73f87 MS |
2872 | |
2873 | /* | |
2874 | * Check the SSL/TLS buffers for data first... | |
2875 | */ | |
2876 | ||
2877 | #ifdef HAVE_SSL | |
2878 | if (http->tls && usessl) | |
2879 | { | |
2880 | # ifdef HAVE_LIBSSL | |
7cf5915e | 2881 | if (SSL_pending(http->tls)) |
f8b3a85b MS |
2882 | { |
2883 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2884 | return (1); |
f8b3a85b MS |
2885 | } |
2886 | ||
38e73f87 | 2887 | # elif defined(HAVE_GNUTLS) |
7cf5915e | 2888 | if (gnutls_record_check_pending(http->tls)) |
f8b3a85b MS |
2889 | { |
2890 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2891 | return (1); |
f8b3a85b MS |
2892 | } |
2893 | ||
38e73f87 MS |
2894 | # elif defined(HAVE_CDSASSL) |
2895 | size_t bytes; /* Bytes that are available */ | |
2896 | ||
7cf5915e | 2897 | if (!SSLGetBufferedReadSize(http->tls, &bytes) && |
38e73f87 | 2898 | bytes > 0) |
f8b3a85b MS |
2899 | { |
2900 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2901 | return (1); |
f8b3a85b | 2902 | } |
38e73f87 MS |
2903 | # endif /* HAVE_LIBSSL */ |
2904 | } | |
2905 | #endif /* HAVE_SSL */ | |
2906 | ||
2907 | /* | |
2908 | * Then try doing a select() or poll() to poll the socket... | |
2909 | */ | |
2910 | ||
2911 | #ifdef HAVE_POLL | |
2912 | pfd.fd = http->fd; | |
2913 | pfd.events = POLLIN; | |
2914 | ||
e07d4801 MS |
2915 | while ((nfds = poll(&pfd, 1, msec)) < 0 && |
2916 | (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
2917 | |
2918 | #else | |
2919 | do | |
2920 | { | |
2921 | FD_ZERO(&input_set); | |
2922 | FD_SET(http->fd, &input_set); | |
2923 | ||
e07d4801 | 2924 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
2925 | |
2926 | if (msec >= 0) | |
2927 | { | |
2928 | timeout.tv_sec = msec / 1000; | |
2929 | timeout.tv_usec = (msec % 1000) * 1000; | |
2930 | ||
2931 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
2932 | } | |
2933 | else | |
2934 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
2935 | ||
e07d4801 | 2936 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
2937 | } |
2938 | # ifdef WIN32 | |
cc754834 MS |
2939 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
2940 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 2941 | # else |
e07d4801 | 2942 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
2943 | # endif /* WIN32 */ |
2944 | #endif /* HAVE_POLL */ | |
2945 | ||
f8b3a85b MS |
2946 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
2947 | errno)); | |
38e73f87 MS |
2948 | |
2949 | return (nfds > 0); | |
2950 | } | |
2951 | ||
2952 | ||
ef416fc2 | 2953 | /* |
2954 | * 'httpWait()' - Wait for data available on a connection. | |
2955 | * | |
426c6a59 | 2956 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 2957 | */ |
2958 | ||
2959 | int /* O - 1 if data is available, 0 otherwise */ | |
568fa3fa | 2960 | httpWait(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2961 | int msec) /* I - Milliseconds to wait */ |
2962 | { | |
2963 | /* | |
2964 | * First see if there is data in the buffer... | |
2965 | */ | |
2966 | ||
22c9029b MS |
2967 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
2968 | ||
ef416fc2 | 2969 | if (http == NULL) |
2970 | return (0); | |
2971 | ||
2972 | if (http->used) | |
22c9029b MS |
2973 | { |
2974 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 2975 | return (1); |
22c9029b | 2976 | } |
ef416fc2 | 2977 | |
8ca02f3c | 2978 | /* |
2979 | * Flush pending data, if any... | |
2980 | */ | |
2981 | ||
2982 | if (http->wused) | |
2983 | { | |
22c9029b MS |
2984 | DEBUG_puts("3httpWait: Flushing write buffer."); |
2985 | ||
8ca02f3c | 2986 | if (httpFlushWrite(http) < 0) |
2987 | return (0); | |
2988 | } | |
2989 | ||
ef416fc2 | 2990 | /* |
2991 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
2992 | */ | |
2993 | ||
38e73f87 | 2994 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 2995 | } |
2996 | ||
2997 | ||
2998 | /* | |
2999 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3000 | * |
3001 | * This function is deprecated. Use the httpWrite2() function which can | |
3002 | * write more than 2GB of data. | |
3003 | * | |
3004 | * @deprecated@ | |
ef416fc2 | 3005 | */ |
ef55b745 | 3006 | |
ef416fc2 | 3007 | int /* O - Number of bytes written */ |
568fa3fa | 3008 | httpWrite(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3009 | const char *buffer, /* I - Buffer for data */ |
3010 | int length) /* I - Number of bytes to write */ | |
3011 | { | |
a4d04587 | 3012 | return ((int)httpWrite2(http, buffer, length)); |
3013 | } | |
3014 | ||
3015 | ||
3016 | /* | |
3017 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3018 | * |
426c6a59 | 3019 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 3020 | */ |
ef55b745 | 3021 | |
a4d04587 | 3022 | ssize_t /* O - Number of bytes written */ |
568fa3fa | 3023 | httpWrite2(http_t *http, /* I - Connection to server */ |
a4d04587 | 3024 | const char *buffer, /* I - Buffer for data */ |
3025 | size_t length) /* I - Number of bytes to write */ | |
3026 | { | |
3027 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3028 | |
3029 | ||
e07d4801 | 3030 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3031 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3032 | |
3033 | /* | |
3034 | * Range check input... | |
3035 | */ | |
3036 | ||
3037 | if (http == NULL || buffer == NULL) | |
3038 | return (-1); | |
3039 | ||
3040 | /* | |
3041 | * Mark activity on the connection... | |
3042 | */ | |
3043 | ||
3044 | http->activity = time(NULL); | |
3045 | ||
3046 | /* | |
3047 | * Buffer small writes for better performance... | |
3048 | */ | |
3049 | ||
3050 | if (length > 0) | |
3051 | { | |
3052 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
3053 | { | |
e07d4801 MS |
3054 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3055 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3056 | |
3057 | httpFlushWrite(http); | |
3058 | } | |
3059 | ||
38e73f87 MS |
3060 | if ((length + http->wused) <= sizeof(http->wbuffer) && |
3061 | length < sizeof(http->wbuffer)) | |
ef416fc2 | 3062 | { |
3063 | /* | |
3064 | * Write to buffer... | |
3065 | */ | |
3066 | ||
e07d4801 | 3067 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3068 | CUPS_LLCAST length)); |
ef416fc2 | 3069 | |
3070 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3071 | http->wused += (int)length; |
3072 | bytes = (ssize_t)length; | |
ef416fc2 | 3073 | } |
3074 | else | |
3075 | { | |
3076 | /* | |
3077 | * Otherwise write the data directly... | |
3078 | */ | |
3079 | ||
e07d4801 | 3080 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3081 | CUPS_LLCAST length)); |
ef416fc2 | 3082 | |
3083 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
b86bc4cf | 3084 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 3085 | else |
b86bc4cf | 3086 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 3087 | |
e07d4801 | 3088 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3089 | CUPS_LLCAST bytes)); |
ef416fc2 | 3090 | } |
3091 | ||
3092 | if (http->data_encoding == HTTP_ENCODE_LENGTH) | |
3093 | http->data_remaining -= bytes; | |
3094 | } | |
3095 | else | |
3096 | bytes = 0; | |
3097 | ||
3098 | /* | |
3099 | * Handle end-of-request processing... | |
3100 | */ | |
3101 | ||
3102 | if ((http->data_encoding == HTTP_ENCODE_CHUNKED && length == 0) || | |
3103 | (http->data_encoding == HTTP_ENCODE_LENGTH && http->data_remaining == 0)) | |
3104 | { | |
3105 | /* | |
3106 | * Finished with the transfer; unless we are sending POST or PUT | |
3107 | * data, go idle... | |
3108 | */ | |
3109 | ||
e07d4801 | 3110 | DEBUG_puts("2httpWrite: changing states..."); |
ef416fc2 | 3111 | |
3112 | if (http->wused) | |
3113 | httpFlushWrite(http); | |
3114 | ||
3115 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
3116 | { | |
3117 | /* | |
3118 | * Send a 0-length chunk at the end of the request... | |
3119 | */ | |
3120 | ||
3121 | http_write(http, "0\r\n\r\n", 5); | |
3122 | ||
3123 | /* | |
3124 | * Reset the data state... | |
3125 | */ | |
3126 | ||
3127 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
3128 | http->data_remaining = 0; | |
3129 | } | |
ef416fc2 | 3130 | } |
3131 | ||
3132 | return (bytes); | |
3133 | } | |
3134 | ||
3135 | ||
3136 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
3137 | /* | |
411affcf | 3138 | * '_httpWriteCDSA()' - Write function for the CDSA library. |
ef416fc2 | 3139 | */ |
3140 | ||
3141 | OSStatus /* O - -1 on error, 0 on success */ | |
3142 | _httpWriteCDSA( | |
3143 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
3144 | const void *data, /* I - Data buffer */ | |
3145 | size_t *dataLength) /* IO - Number of bytes */ | |
3146 | { | |
411affcf | 3147 | OSStatus result; /* Return value */ |
3148 | ssize_t bytes; /* Number of bytes read */ | |
3149 | http_t *http; /* HTTP connection */ | |
e53920b9 | 3150 | |
3151 | ||
411affcf | 3152 | http = (http_t *)connection; |
ef416fc2 | 3153 | |
b423cd4c | 3154 | do |
411affcf | 3155 | { |
3156 | bytes = write(http->fd, data, *dataLength); | |
3157 | } | |
e07d4801 | 3158 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 3159 | |
b423cd4c | 3160 | if (bytes == *dataLength) |
411affcf | 3161 | { |
b423cd4c | 3162 | result = 0; |
411affcf | 3163 | } |
b423cd4c | 3164 | else if (bytes >= 0) |
3165 | { | |
3166 | *dataLength = bytes; | |
3167 | result = errSSLWouldBlock; | |
3168 | } | |
3169 | else | |
3170 | { | |
3171 | *dataLength = 0; | |
ef55b745 | 3172 | |
fa73b229 | 3173 | if (errno == EAGAIN) |
b423cd4c | 3174 | result = errSSLWouldBlock; |
b423cd4c | 3175 | else |
ed486911 | 3176 | result = errSSLClosedAbort; |
ef416fc2 | 3177 | } |
b423cd4c | 3178 | |
411affcf | 3179 | return (result); |
ef416fc2 | 3180 | } |
3181 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
3182 | ||
3183 | ||
411affcf | 3184 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
3185 | /* | |
3186 | * '_httpWriteGNUTLS()' - Write function for the GNU TLS library. | |
3187 | */ | |
3188 | ||
3189 | ssize_t /* O - Number of bytes written or -1 on error */ | |
3190 | _httpWriteGNUTLS( | |
568fa3fa | 3191 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 3192 | const void *data, /* I - Data buffer */ |
3193 | size_t length) /* I - Number of bytes to write */ | |
3194 | { | |
a4845881 MS |
3195 | ssize_t bytes; /* Bytes written */ |
3196 | ||
3197 | ||
3198 | DEBUG_printf(("6_httpWriteGNUTLS(ptr=%p, data=%p, length=%d)", ptr, data, | |
3199 | (int)length)); | |
3200 | http_debug_hex("_httpWriteGNUTLS", data, (int)length); | |
3201 | ||
3202 | bytes = send(((http_t *)ptr)->fd, data, length, 0); | |
3203 | DEBUG_printf(("_httpWriteGNUTLS: bytes=%d", (int)bytes)); | |
3204 | return (bytes); | |
411affcf | 3205 | } |
3206 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
3207 | ||
3208 | ||
3209 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
3210 | /* | |
3211 | * 'http_bio_ctrl()' - Control the HTTP connection. | |
3212 | */ | |
3213 | ||
3214 | static long /* O - Result/data */ | |
3215 | http_bio_ctrl(BIO *h, /* I - BIO data */ | |
3216 | int cmd, /* I - Control command */ | |
3217 | long arg1, /* I - First argument */ | |
3218 | void *arg2) /* I - Second argument */ | |
3219 | { | |
3220 | switch (cmd) | |
3221 | { | |
3222 | default : | |
3223 | return (0); | |
3224 | ||
3225 | case BIO_CTRL_RESET : | |
3226 | h->ptr = NULL; | |
3227 | return (0); | |
3228 | ||
3229 | case BIO_C_SET_FILE_PTR : | |
3230 | h->ptr = arg2; | |
3231 | h->init = 1; | |
3232 | return (1); | |
3233 | ||
3234 | case BIO_C_GET_FILE_PTR : | |
3235 | if (arg2) | |
3236 | { | |
3237 | *((void **)arg2) = h->ptr; | |
3238 | return (1); | |
3239 | } | |
3240 | else | |
3241 | return (0); | |
ef55b745 | 3242 | |
411affcf | 3243 | case BIO_CTRL_DUP : |
3244 | case BIO_CTRL_FLUSH : | |
3245 | return (1); | |
3246 | } | |
3247 | } | |
3248 | ||
3249 | ||
3250 | /* | |
3251 | * 'http_bio_free()' - Free OpenSSL data. | |
3252 | */ | |
3253 | ||
3254 | static int /* O - 1 on success, 0 on failure */ | |
3255 | http_bio_free(BIO *h) /* I - BIO data */ | |
3256 | { | |
3257 | if (!h) | |
3258 | return (0); | |
3259 | ||
3260 | if (h->shutdown) | |
3261 | { | |
3262 | h->init = 0; | |
3263 | h->flags = 0; | |
3264 | } | |
3265 | ||
3266 | return (1); | |
3267 | } | |
3268 | ||
3269 | ||
3270 | /* | |
3271 | * 'http_bio_new()' - Initialize an OpenSSL BIO structure. | |
3272 | */ | |
3273 | ||
3274 | static int /* O - 1 on success, 0 on failure */ | |
3275 | http_bio_new(BIO *h) /* I - BIO data */ | |
3276 | { | |
3277 | if (!h) | |
3278 | return (0); | |
3279 | ||
3280 | h->init = 0; | |
3281 | h->num = 0; | |
3282 | h->ptr = NULL; | |
3283 | h->flags = 0; | |
3284 | ||
3285 | return (1); | |
3286 | } | |
3287 | ||
3288 | ||
3289 | /* | |
3290 | * 'http_bio_puts()' - Send a string for OpenSSL. | |
3291 | */ | |
3292 | ||
3293 | static int /* O - Bytes written */ | |
3294 | http_bio_puts(BIO *h, /* I - BIO data */ | |
3295 | const char *str) /* I - String to write */ | |
3296 | { | |
b86bc4cf | 3297 | #ifdef WIN32 |
3298 | return (send(((http_t *)h->ptr)->fd, str, (int)strlen(str), 0)); | |
3299 | #else | |
411affcf | 3300 | return (send(((http_t *)h->ptr)->fd, str, strlen(str), 0)); |
b86bc4cf | 3301 | #endif /* WIN32 */ |
411affcf | 3302 | } |
3303 | ||
3304 | ||
3305 | /* | |
3306 | * 'http_bio_read()' - Read data for OpenSSL. | |
3307 | */ | |
3308 | ||
3309 | static int /* O - Bytes read */ | |
3310 | http_bio_read(BIO *h, /* I - BIO data */ | |
3311 | char *buf, /* I - Buffer */ | |
3312 | int size) /* I - Number of bytes to read */ | |
3313 | { | |
3314 | http_t *http; /* HTTP connection */ | |
3315 | ||
3316 | ||
3317 | http = (http_t *)h->ptr; | |
3318 | ||
3319 | if (!http->blocking) | |
3320 | { | |
3321 | /* | |
3322 | * Make sure we have data before we read... | |
3323 | */ | |
3324 | ||
85dda01c | 3325 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 3326 | { |
f228370c MS |
3327 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
3328 | continue; | |
3329 | ||
b86bc4cf | 3330 | #ifdef WIN32 |
3331 | http->error = WSAETIMEDOUT; | |
3332 | #else | |
411affcf | 3333 | http->error = ETIMEDOUT; |
b86bc4cf | 3334 | #endif /* WIN32 */ |
3335 | ||
411affcf | 3336 | return (-1); |
3337 | } | |
3338 | } | |
3339 | ||
3340 | return (recv(http->fd, buf, size, 0)); | |
3341 | } | |
3342 | ||
3343 | ||
3344 | /* | |
3345 | * 'http_bio_write()' - Write data for OpenSSL. | |
3346 | */ | |
3347 | ||
3348 | static int /* O - Bytes written */ | |
3349 | http_bio_write(BIO *h, /* I - BIO data */ | |
3350 | const char *buf, /* I - Buffer to write */ | |
3351 | int num) /* I - Number of bytes to write */ | |
3352 | { | |
3353 | return (send(((http_t *)h->ptr)->fd, buf, num, 0)); | |
3354 | } | |
3355 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
3356 | ||
3357 | ||
ae71f5de MS |
3358 | #ifdef DEBUG |
3359 | /* | |
3360 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
3361 | */ | |
3362 | ||
3363 | static void | |
3364 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
3365 | const char *buffer, /* I - Buffer to dump */ | |
3366 | int bytes) /* I - Bytes to dump */ | |
3367 | { | |
3368 | int i, j, /* Looping vars */ | |
3369 | ch; /* Current character */ | |
3370 | char line[255], /* Line buffer */ | |
3371 | *start, /* Start of line after prefix */ | |
3372 | *ptr; /* Pointer into line */ | |
3373 | ||
3374 | ||
f11a948a | 3375 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
3376 | return; |
3377 | ||
83e08001 | 3378 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 3379 | |
f11a948a | 3380 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
3381 | start = line + strlen(line); |
3382 | ||
3383 | for (i = 0; i < bytes; i += 16) | |
3384 | { | |
3385 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
3386 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
3387 | ||
3388 | while (j < 16) | |
3389 | { | |
3390 | strcpy(ptr, " "); | |
3391 | ptr += 2; | |
3392 | j ++; | |
3393 | } | |
3394 | ||
3395 | strcpy(ptr, " "); | |
3396 | ptr += 2; | |
3397 | ||
3398 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
3399 | { | |
3400 | ch = buffer[i + j] & 255; | |
3401 | ||
3402 | if (ch < ' ' || ch >= 127) | |
3403 | ch = '.'; | |
3404 | ||
3405 | *ptr++ = ch; | |
3406 | } | |
3407 | ||
3408 | *ptr = '\0'; | |
3409 | DEBUG_puts(line); | |
3410 | } | |
3411 | } | |
3412 | #endif /* DEBUG */ | |
3413 | ||
3414 | ||
ef416fc2 | 3415 | /* |
3416 | * 'http_field()' - Return the field index for a field name. | |
3417 | */ | |
3418 | ||
ae71f5de MS |
3419 | static http_field_t /* O - Field index */ |
3420 | http_field(const char *name) /* I - String name */ | |
ef416fc2 | 3421 | { |
ae71f5de | 3422 | int i; /* Looping var */ |
ef416fc2 | 3423 | |
3424 | ||
3425 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
88f9aafc | 3426 | if (_cups_strcasecmp(name, http_fields[i]) == 0) |
ef416fc2 | 3427 | return ((http_field_t)i); |
3428 | ||
3429 | return (HTTP_FIELD_UNKNOWN); | |
3430 | } | |
3431 | ||
3432 | ||
3433 | #ifdef HAVE_SSL | |
3434 | /* | |
3435 | * 'http_read_ssl()' - Read from a SSL/TLS connection. | |
3436 | */ | |
3437 | ||
3438 | static int /* O - Bytes read */ | |
568fa3fa | 3439 | http_read_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3440 | char *buf, /* I - Buffer to store data */ |
3441 | int len) /* I - Length of buffer */ | |
3442 | { | |
3443 | # if defined(HAVE_LIBSSL) | |
3444 | return (SSL_read((SSL *)(http->tls), buf, len)); | |
3445 | ||
3446 | # elif defined(HAVE_GNUTLS) | |
ef55b745 MS |
3447 | ssize_t result; /* Return value */ |
3448 | ||
3449 | ||
7cf5915e | 3450 | result = gnutls_record_recv(http->tls, buf, len); |
ef55b745 MS |
3451 | |
3452 | if (result < 0 && !errno) | |
3453 | { | |
3454 | /* | |
3455 | * Convert GNU TLS error to errno value... | |
3456 | */ | |
3457 | ||
3458 | switch (result) | |
3459 | { | |
3460 | case GNUTLS_E_INTERRUPTED : | |
3461 | errno = EINTR; | |
3462 | break; | |
3463 | ||
3464 | case GNUTLS_E_AGAIN : | |
3465 | errno = EAGAIN; | |
3466 | break; | |
3467 | ||
3468 | default : | |
3469 | errno = EPIPE; | |
3470 | break; | |
3471 | } | |
3472 | ||
3473 | result = -1; | |
3474 | } | |
3475 | ||
3476 | return ((int)result); | |
ef416fc2 | 3477 | |
3478 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 3479 | int result; /* Return value */ |
ef416fc2 | 3480 | OSStatus error; /* Error info */ |
3481 | size_t processed; /* Number of bytes processed */ | |
3482 | ||
3483 | ||
7cf5915e | 3484 | error = SSLRead(http->tls, buf, len, &processed); |
83e08001 MS |
3485 | DEBUG_printf(("6http_read_ssl: error=%d, processed=%d", (int)error, |
3486 | (int)processed)); | |
fa73b229 | 3487 | switch (error) |
ef416fc2 | 3488 | { |
fa73b229 | 3489 | case 0 : |
3490 | result = (int)processed; | |
3491 | break; | |
84315f46 | 3492 | |
fa73b229 | 3493 | case errSSLWouldBlock : |
b423cd4c | 3494 | if (processed) |
3495 | result = (int)processed; | |
3496 | else | |
3497 | { | |
3498 | result = -1; | |
83e08001 | 3499 | errno = EINTR; |
b423cd4c | 3500 | } |
fa73b229 | 3501 | break; |
84315f46 MS |
3502 | |
3503 | case errSSLClosedGraceful : | |
fa73b229 | 3504 | default : |
84315f46 MS |
3505 | if (processed) |
3506 | result = (int)processed; | |
3507 | else | |
3508 | { | |
3509 | result = -1; | |
83e08001 | 3510 | errno = EPIPE; |
84315f46 | 3511 | } |
fa73b229 | 3512 | break; |
ef416fc2 | 3513 | } |
fa73b229 | 3514 | |
3515 | return (result); | |
83e08001 | 3516 | |
cc754834 MS |
3517 | # elif defined(HAVE_SSPISSL) |
3518 | return _sspiRead((_sspi_struct_t*) http->tls, buf, len); | |
ef416fc2 | 3519 | # endif /* HAVE_LIBSSL */ |
3520 | } | |
3521 | #endif /* HAVE_SSL */ | |
3522 | ||
3523 | ||
3524 | /* | |
3525 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
3526 | */ | |
3527 | ||
3528 | static int /* O - 0 on success, non-zero on error */ | |
568fa3fa | 3529 | http_send(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3530 | http_state_t request, /* I - Request code */ |
3531 | const char *uri) /* I - URI */ | |
3532 | { | |
3533 | int i; /* Looping var */ | |
839a51c8 | 3534 | char buf[1024]; /* Encoded URI buffer */ |
ef416fc2 | 3535 | static const char * const codes[] = |
3536 | { /* Request code strings */ | |
3537 | NULL, | |
3538 | "OPTIONS", | |
3539 | "GET", | |
3540 | NULL, | |
3541 | "HEAD", | |
3542 | "POST", | |
3543 | NULL, | |
3544 | NULL, | |
3545 | "PUT", | |
3546 | NULL, | |
3547 | "DELETE", | |
3548 | "TRACE", | |
3549 | "CLOSE" | |
3550 | }; | |
ef416fc2 | 3551 | |
3552 | ||
e07d4801 | 3553 | DEBUG_printf(("7http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 3554 | http, codes[request], uri)); |
3555 | ||
3556 | if (http == NULL || uri == NULL) | |
3557 | return (-1); | |
3558 | ||
3559 | /* | |
3560 | * Set the User-Agent field if it isn't already... | |
3561 | */ | |
3562 | ||
3563 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
3564 | httpSetField(http, HTTP_FIELD_USER_AGENT, CUPS_MINIMAL); | |
3565 | ||
3566 | /* | |
3567 | * Encode the URI as needed... | |
3568 | */ | |
3569 | ||
839a51c8 | 3570 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 3571 | |
3572 | /* | |
3573 | * See if we had an error the last time around; if so, reconnect... | |
3574 | */ | |
3575 | ||
3576 | if (http->status == HTTP_ERROR || http->status >= HTTP_BAD_REQUEST) | |
fa73b229 | 3577 | if (httpReconnect(http)) |
3578 | return (-1); | |
ef416fc2 | 3579 | |
d09495fa | 3580 | /* |
3581 | * Flush any written data that is pending... | |
3582 | */ | |
3583 | ||
3584 | if (http->wused) | |
536bc2c6 MS |
3585 | { |
3586 | if (httpFlushWrite(http) < 0) | |
3587 | if (httpReconnect(http)) | |
3588 | return (-1); | |
3589 | } | |
d09495fa | 3590 | |
ef416fc2 | 3591 | /* |
3592 | * Send the request header... | |
3593 | */ | |
3594 | ||
d09495fa | 3595 | http->state = request; |
3596 | http->data_encoding = HTTP_ENCODE_FIELDS; | |
3597 | ||
ef416fc2 | 3598 | if (request == HTTP_POST || request == HTTP_PUT) |
3599 | http->state ++; | |
3600 | ||
3601 | http->status = HTTP_CONTINUE; | |
3602 | ||
3603 | #ifdef HAVE_SSL | |
3604 | if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
3605 | { | |
3606 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3607 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.0,SSL/2.0,SSL/3.0"); | |
3608 | } | |
3609 | #endif /* HAVE_SSL */ | |
3610 | ||
3611 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
3612 | { | |
3613 | http->status = HTTP_ERROR; | |
3614 | return (-1); | |
3615 | } | |
3616 | ||
3617 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3618 | if (http->fields[i][0] != '\0') | |
3619 | { | |
e07d4801 | 3620 | DEBUG_printf(("9http_send: %s: %s", http_fields[i], |
ae71f5de | 3621 | httpGetField(http, i))); |
ef416fc2 | 3622 | |
ef55b745 | 3623 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], |
f7deaa1a | 3624 | httpGetField(http, i)) < 1) |
ef416fc2 | 3625 | { |
3626 | http->status = HTTP_ERROR; | |
3627 | return (-1); | |
3628 | } | |
3629 | } | |
3630 | ||
3631 | if (http->cookie) | |
3632 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
3633 | { | |
3634 | http->status = HTTP_ERROR; | |
3635 | return (-1); | |
3636 | } | |
3637 | ||
b423cd4c | 3638 | if (http->expect == HTTP_CONTINUE && |
3639 | (http->state == HTTP_POST_RECV || http->state == HTTP_PUT_RECV)) | |
3640 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) | |
3641 | { | |
3642 | http->status = HTTP_ERROR; | |
3643 | return (-1); | |
3644 | } | |
3645 | ||
ef416fc2 | 3646 | if (httpPrintf(http, "\r\n") < 1) |
3647 | { | |
3648 | http->status = HTTP_ERROR; | |
3649 | return (-1); | |
3650 | } | |
3651 | ||
536bc2c6 MS |
3652 | if (httpFlushWrite(http) < 0) |
3653 | return (-1); | |
3654 | ||
ef416fc2 | 3655 | httpGetLength2(http); |
3656 | httpClearFields(http); | |
3657 | ||
f7deaa1a | 3658 | /* |
b94498cf | 3659 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 3660 | */ |
3661 | ||
ef55b745 MS |
3662 | if (http->field_authorization && http->authstring && |
3663 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 3664 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 3665 | { |
3666 | http->_authstring[0] = '\0'; | |
3667 | ||
3668 | if (http->authstring != http->_authstring) | |
3669 | free(http->authstring); | |
ef55b745 | 3670 | |
f7deaa1a | 3671 | http->authstring = http->_authstring; |
3672 | } | |
3673 | ||
ef416fc2 | 3674 | return (0); |
3675 | } | |
3676 | ||
3677 | ||
3678 | #ifdef HAVE_SSL | |
82f97232 | 3679 | # if defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
3680 | /* |
3681 | * 'http_set_credentials()' - Set the SSL/TLS credentials. | |
3682 | */ | |
3683 | ||
3684 | static int /* O - Status of connection */ | |
3685 | http_set_credentials(http_t *http) /* I - Connection to server */ | |
3686 | { | |
3687 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
7cf5915e MS |
3688 | OSStatus error = 0; /* Error code */ |
3689 | http_tls_credentials_t credentials = NULL; | |
3690 | /* TLS credentials */ | |
7cf5915e MS |
3691 | |
3692 | ||
3693 | DEBUG_printf(("7http_set_credentials(%p)", http)); | |
3694 | ||
7cf5915e MS |
3695 | /* |
3696 | * Prefer connection specific credentials... | |
3697 | */ | |
3698 | ||
3699 | if ((credentials = http->tls_credentials) == NULL) | |
3700 | credentials = cg->tls_credentials; | |
3701 | ||
3702 | # if HAVE_SECPOLICYCREATESSL | |
3703 | /* | |
3704 | * Otherwise root around in the user's keychain to see if one can be found... | |
3705 | */ | |
3706 | ||
3707 | if (!credentials) | |
3708 | { | |
3709 | CFDictionaryRef query; /* Query dictionary */ | |
3710 | CFTypeRef matches = NULL; /* Matching credentials */ | |
3711 | CFArrayRef dn_array = NULL;/* Distinguished names array */ | |
3712 | CFTypeRef keys[] = { kSecClass, | |
3713 | kSecMatchLimit, | |
3714 | kSecReturnRef }; | |
3715 | /* Keys for dictionary */ | |
3716 | CFTypeRef values[] = { kSecClassCertificate, | |
3717 | kSecMatchLimitOne, | |
3718 | kCFBooleanTrue }; | |
3719 | /* Values for dictionary */ | |
3720 | ||
3721 | /* | |
3722 | * Get the names associated with the server. | |
3723 | */ | |
3724 | ||
3725 | if ((error = SSLCopyDistinguishedNames(http->tls, &dn_array)) != noErr) | |
3726 | { | |
3727 | DEBUG_printf(("4http_set_credentials: SSLCopyDistinguishedNames, error=%d", | |
3728 | (int)error)); | |
3729 | return (error); | |
3730 | } | |
3731 | ||
3732 | /* | |
3733 | * Create a query which will return all identities that can sign and match | |
3734 | * the passed in policy. | |
3735 | */ | |
3736 | ||
3737 | query = CFDictionaryCreate(NULL, | |
3738 | (const void**)(&keys[0]), | |
3739 | (const void**)(&values[0]), | |
3740 | sizeof(keys) / sizeof(keys[0]), | |
3741 | &kCFTypeDictionaryKeyCallBacks, | |
3742 | &kCFTypeDictionaryValueCallBacks); | |
3743 | if (query) | |
3744 | { | |
3745 | error = SecItemCopyMatching(query, &matches); | |
3746 | DEBUG_printf(("4http_set_credentials: SecItemCopyMatching, error=%d", | |
3747 | (int)error)); | |
3748 | CFRelease(query); | |
3749 | } | |
3750 | ||
3751 | if (matches) | |
3752 | CFRelease(matches); | |
3753 | ||
3754 | if (dn_array) | |
3755 | CFRelease(dn_array); | |
3756 | } | |
3757 | # endif /* HAVE_SECPOLICYCREATESSL */ | |
3758 | ||
3759 | if (credentials) | |
3760 | { | |
3761 | error = SSLSetCertificate(http->tls, credentials); | |
3762 | DEBUG_printf(("4http_set_credentials: SSLSetCertificate, error=%d", | |
3763 | (int)error)); | |
3764 | } | |
3765 | else | |
3766 | DEBUG_puts("4http_set_credentials: No credentials to set."); | |
3767 | ||
3768 | return (error); | |
7cf5915e | 3769 | } |
82f97232 | 3770 | # endif /* HAVE_CDSASSL && HAVE_SECCERTIFICATECOPYDATA */ |
9b66acc5 | 3771 | #endif /* HAVE_SSL */ |
7cf5915e MS |
3772 | |
3773 | ||
85dda01c MS |
3774 | /* |
3775 | * 'http_set_timeout()' - Set the socket timeout values. | |
3776 | */ | |
3777 | ||
3778 | static void | |
3779 | http_set_timeout(int fd, /* I - File descriptor */ | |
3780 | double timeout) /* I - Timeout in seconds */ | |
3781 | { | |
3782 | #ifdef WIN32 | |
3783 | DWORD tv = (DWORD)(timeout * 1000); | |
3784 | /* Timeout in milliseconds */ | |
3785 | ||
3786 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); | |
3787 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); | |
3788 | ||
3789 | #else | |
3790 | struct timeval tv; /* Timeout in secs and usecs */ | |
3791 | ||
3792 | tv.tv_sec = (int)timeout; | |
3793 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
3794 | ||
3795 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
3796 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
3797 | #endif /* WIN32 */ | |
3798 | } | |
3799 | ||
3800 | ||
3801 | /* | |
3802 | * 'http_set_wait()' - Set the default wait value for reads. | |
3803 | */ | |
3804 | ||
3805 | static void | |
3806 | http_set_wait(http_t *http) /* I - Connection to server */ | |
3807 | { | |
3808 | if (http->blocking) | |
3809 | { | |
3810 | http->wait_value = (int)(http->timeout_value * 1000); | |
3811 | ||
3812 | if (http->wait_value <= 0) | |
3813 | http->wait_value = 60000; | |
3814 | } | |
3815 | else | |
3816 | http->wait_value = 10000; | |
3817 | } | |
3818 | ||
3819 | ||
9b66acc5 | 3820 | #ifdef HAVE_SSL |
ef416fc2 | 3821 | /* |
3822 | * 'http_setup_ssl()' - Set up SSL/TLS support on a connection. | |
3823 | */ | |
3824 | ||
a4845881 | 3825 | static int /* O - 0 on success, -1 on failure */ |
568fa3fa | 3826 | http_setup_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 3827 | { |
7cf5915e MS |
3828 | _cups_globals_t *cg = _cupsGlobals(); |
3829 | /* Pointer to library globals */ | |
3830 | int any_root; /* Allow any root */ | |
3831 | ||
ef416fc2 | 3832 | # ifdef HAVE_LIBSSL |
a4845881 MS |
3833 | SSL_CTX *context; /* Context for encryption */ |
3834 | BIO *bio; /* BIO data */ | |
3835 | const char *message = NULL;/* Error message */ | |
ef416fc2 | 3836 | # elif defined(HAVE_GNUTLS) |
a4845881 | 3837 | int status; /* Status of handshake */ |
ef416fc2 | 3838 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 3839 | /* TLS credentials */ |
ef416fc2 | 3840 | # elif defined(HAVE_CDSASSL) |
a4845881 MS |
3841 | OSStatus error; /* Error code */ |
3842 | char *hostname; /* Hostname */ | |
3843 | const char *message = NULL;/* Error message */ | |
82f97232 | 3844 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
a4845881 MS |
3845 | cups_array_t *credentials; /* Credentials array */ |
3846 | cups_array_t *names; /* CUPS distinguished names */ | |
3847 | CFArrayRef dn_array; /* CF distinguished names array */ | |
3848 | CFIndex count; /* Number of credentials */ | |
3849 | CFDataRef data; /* Certificate data */ | |
3850 | int i; /* Looping var */ | |
3851 | http_credential_t *credential; /* Credential data */ | |
82f97232 | 3852 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
cc754834 | 3853 | # elif defined(HAVE_SSPISSL) |
a4845881 MS |
3854 | TCHAR username[256]; /* Username returned from GetUserName() */ |
3855 | TCHAR commonName[256];/* Common name for certificate */ | |
3856 | DWORD dwSize; /* 32 bit size */ | |
ef416fc2 | 3857 | # endif /* HAVE_LIBSSL */ |
3858 | ||
3859 | ||
e07d4801 | 3860 | DEBUG_printf(("7http_setup_ssl(http=%p)", http)); |
ef416fc2 | 3861 | |
7cf5915e MS |
3862 | /* |
3863 | * Always allow self-signed certificates for the local loopback address... | |
3864 | */ | |
3865 | ||
3866 | if (httpAddrLocalhost(http->hostaddr)) | |
3867 | any_root = 1; | |
3868 | else | |
3869 | any_root = cg->any_root; | |
3870 | ||
ef416fc2 | 3871 | # ifdef HAVE_LIBSSL |
a4845881 MS |
3872 | (void)any_root; |
3873 | ||
ef416fc2 | 3874 | context = SSL_CTX_new(SSLv23_client_method()); |
3875 | ||
3876 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
3877 | ||
411affcf | 3878 | bio = BIO_new(_httpBIOMethods()); |
3879 | BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)http); | |
3880 | ||
7cf5915e | 3881 | http->tls = SSL_new(context); |
a4845881 | 3882 | SSL_set_bio(http->tls, bio, bio); |
ef416fc2 | 3883 | |
7cf5915e | 3884 | if (SSL_connect(http->tls) != 1) |
ef416fc2 | 3885 | { |
ef416fc2 | 3886 | unsigned long error; /* Error code */ |
3887 | ||
3888 | while ((error = ERR_get_error()) != 0) | |
a4845881 MS |
3889 | { |
3890 | message = ERR_error_string(error, NULL); | |
3891 | DEBUG_printf(("8http_setup_ssl: %s", message)); | |
3892 | } | |
ef416fc2 | 3893 | |
3894 | SSL_CTX_free(context); | |
7cf5915e MS |
3895 | SSL_free(http->tls); |
3896 | http->tls = NULL; | |
ef416fc2 | 3897 | |
3898 | # ifdef WIN32 | |
3899 | http->error = WSAGetLastError(); | |
3900 | # else | |
3901 | http->error = errno; | |
3902 | # endif /* WIN32 */ | |
3903 | http->status = HTTP_ERROR; | |
3904 | ||
a4845881 MS |
3905 | if (!message) |
3906 | message = _("Unable to establish a secure connection to host."); | |
3907 | ||
3908 | _cupsSetError(IPP_PKI_ERROR, message, 1); | |
3909 | ||
3910 | return (-1); | |
ef416fc2 | 3911 | } |
3912 | ||
3913 | # elif defined(HAVE_GNUTLS) | |
83e08001 MS |
3914 | (void)any_root; |
3915 | ||
ef416fc2 | 3916 | credentials = (gnutls_certificate_client_credentials *) |
3917 | malloc(sizeof(gnutls_certificate_client_credentials)); | |
3918 | if (credentials == NULL) | |
3919 | { | |
a4845881 MS |
3920 | DEBUG_printf(("8http_setup_ssl: Unable to allocate credentials: %s", |
3921 | strerror(errno))); | |
3922 | http->error = errno; | |
ef416fc2 | 3923 | http->status = HTTP_ERROR; |
a4845881 | 3924 | _cupsSetHTTPError(HTTP_ERROR); |
ef416fc2 | 3925 | |
3926 | return (-1); | |
3927 | } | |
3928 | ||
3929 | gnutls_certificate_allocate_credentials(credentials); | |
3930 | ||
7cf5915e MS |
3931 | gnutls_init(&http->tls, GNUTLS_CLIENT); |
3932 | gnutls_set_default_priority(http->tls); | |
a4845881 | 3933 | gnutls_server_name_set(http->tls, GNUTLS_NAME_DNS, http->hostname, strlen(http->hostname)); |
7cf5915e MS |
3934 | gnutls_credentials_set(http->tls, GNUTLS_CRD_CERTIFICATE, *credentials); |
3935 | gnutls_transport_set_ptr(http->tls, (gnutls_transport_ptr)http); | |
3936 | gnutls_transport_set_pull_function(http->tls, _httpReadGNUTLS); | |
3937 | gnutls_transport_set_push_function(http->tls, _httpWriteGNUTLS); | |
ef416fc2 | 3938 | |
a4845881 | 3939 | while ((status = gnutls_handshake(http->tls)) != GNUTLS_E_SUCCESS) |
ef416fc2 | 3940 | { |
a4845881 MS |
3941 | DEBUG_printf(("8http_setup_ssl: gnutls_handshake returned %d (%s)", |
3942 | status, gnutls_strerror(status))); | |
ef416fc2 | 3943 | |
a4845881 MS |
3944 | if (gnutls_error_is_fatal(status)) |
3945 | { | |
3946 | http->error = EIO; | |
3947 | http->status = HTTP_ERROR; | |
85b5d1df | 3948 | |
a4845881 MS |
3949 | _cupsSetError(IPP_PKI_ERROR, gnutls_strerror(status), 0); |
3950 | ||
3951 | gnutls_deinit(http->tls); | |
3952 | gnutls_certificate_free_credentials(*credentials); | |
3953 | free(credentials); | |
3954 | http->tls = NULL; | |
3955 | ||
3956 | return (-1); | |
3957 | } | |
ef416fc2 | 3958 | } |
3959 | ||
7cf5915e | 3960 | http->tls_credentials = credentials; |
ef416fc2 | 3961 | |
3962 | # elif defined(HAVE_CDSASSL) | |
7cf5915e | 3963 | if ((error = SSLNewContext(false, &http->tls))) |
e53920b9 | 3964 | { |
a4845881 | 3965 | http->error = errno; |
89d46774 | 3966 | http->status = HTTP_ERROR; |
a4845881 | 3967 | _cupsSetHTTPError(HTTP_ERROR); |
e53920b9 | 3968 | |
89d46774 | 3969 | return (-1); |
e53920b9 | 3970 | } |
ef416fc2 | 3971 | |
7cf5915e MS |
3972 | error = SSLSetConnection(http->tls, http); |
3973 | DEBUG_printf(("4http_setup_ssl: SSLSetConnection, error=%d", (int)error)); | |
3974 | ||
3975 | if (!error) | |
3976 | { | |
3977 | error = SSLSetIOFuncs(http->tls, _httpReadCDSA, _httpWriteCDSA); | |
3978 | DEBUG_printf(("4http_setup_ssl: SSLSetIOFuncs, error=%d", (int)error)); | |
3979 | } | |
3980 | ||
7cf5915e MS |
3981 | if (!error) |
3982 | { | |
3983 | error = SSLSetAllowsAnyRoot(http->tls, any_root); | |
3984 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsAnyRoot(%d), error=%d", | |
3985 | any_root, (int)error)); | |
3986 | } | |
89d46774 | 3987 | |
3988 | if (!error) | |
7cf5915e MS |
3989 | { |
3990 | error = SSLSetAllowsExpiredCerts(http->tls, cg->expired_certs); | |
3991 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsExpiredCerts(%d), error=%d", | |
3992 | cg->expired_certs, (int)error)); | |
3993 | } | |
89d46774 | 3994 | |
ef416fc2 | 3995 | if (!error) |
7cf5915e MS |
3996 | { |
3997 | error = SSLSetAllowsExpiredRoots(http->tls, cg->expired_root); | |
3998 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsExpiredRoots(%d), error=%d", | |
3999 | cg->expired_root, (int)error)); | |
4000 | } | |
ef416fc2 | 4001 | |
771bd8cb MS |
4002 | # ifdef HAVE_SSLSETPROTOCOLVERSIONMAX |
4003 | if (!error) | |
4004 | { | |
4005 | error = SSLSetProtocolVersionMax(http->tls, kTLSProtocol1); | |
4006 | DEBUG_printf(("4http_setup_ssl: SSLSetProtocolVersionMax(kTLSProtocol1), " | |
4007 | "error=%d", (int)error)); | |
4008 | } | |
4009 | # endif /* HAVE_SSLSETPROTOCOLVERSIONMAX */ | |
4010 | ||
10ddcf65 MS |
4011 | /* |
4012 | * In general, don't verify certificates since things like the common name | |
4013 | * often do not match... | |
4014 | */ | |
4015 | ||
4016 | if (!error) | |
4017 | { | |
4018 | error = SSLSetEnableCertVerify(http->tls, false); | |
4019 | DEBUG_printf(("4http_setup_ssl: SSLSetEnableCertVerify, error=%d", | |
4020 | (int)error)); | |
4021 | } | |
4022 | ||
82f97232 | 4023 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
ef416fc2 | 4024 | if (!error) |
7cf5915e MS |
4025 | { |
4026 | if (cg->client_cert_cb) | |
4027 | { | |
4028 | error = SSLSetSessionOption(http->tls, | |
4029 | kSSLSessionOptionBreakOnCertRequested, true); | |
4030 | DEBUG_printf(("4http_setup_ssl: kSSLSessionOptionBreakOnCertRequested, " | |
4031 | "error=%d", (int)error)); | |
4032 | } | |
4033 | else | |
4034 | { | |
4035 | error = http_set_credentials(http); | |
4036 | DEBUG_printf(("4http_setup_ssl: http_set_credentials, error=%d", | |
4037 | (int)error)); | |
4038 | } | |
4039 | } | |
4040 | ||
4041 | /* | |
4042 | * If there's a server certificate callback installed let it evaluate the | |
4043 | * certificate(s) during the handshake... | |
4044 | */ | |
4045 | ||
4046 | if (!error && cg->server_cert_cb != NULL) | |
4047 | { | |
10ddcf65 MS |
4048 | error = SSLSetSessionOption(http->tls, |
4049 | kSSLSessionOptionBreakOnServerAuth, true); | |
4050 | DEBUG_printf(("4http_setup_ssl: kSSLSessionOptionBreakOnServerAuth, " | |
4051 | "error=%d", (int)error)); | |
7cf5915e | 4052 | } |
82f97232 | 4053 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
ef416fc2 | 4054 | |
10ddcf65 MS |
4055 | /* |
4056 | * Let the server know which hostname/domain we are trying to connect to | |
4057 | * in case it wants to serve up a certificate with a matching common name. | |
4058 | */ | |
4059 | ||
ed486911 | 4060 | if (!error) |
7cf5915e MS |
4061 | { |
4062 | hostname = httpAddrLocalhost(http->hostaddr) ? "localhost" : http->hostname; | |
4063 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); | |
4064 | ||
4065 | DEBUG_printf(("4http_setup_ssl: SSLSetPeerDomainName, error=%d", | |
4066 | (int)error)); | |
4067 | } | |
ed486911 | 4068 | |
ef416fc2 | 4069 | if (!error) |
b423cd4c | 4070 | { |
7cf5915e MS |
4071 | int done = 0; /* Are we done yet? */ |
4072 | ||
4073 | while (!error && !done) | |
4074 | { | |
4075 | error = SSLHandshake(http->tls); | |
4076 | ||
85dda01c | 4077 | DEBUG_printf(("4http_setup_ssl: SSLHandshake returned %d.", (int)error)); |
7cf5915e MS |
4078 | |
4079 | switch (error) | |
4080 | { | |
4081 | case noErr : | |
4082 | done = 1; | |
4083 | break; | |
4084 | ||
4085 | case errSSLWouldBlock : | |
4086 | usleep(1000); | |
4087 | break; | |
4088 | ||
82f97232 | 4089 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
7cf5915e MS |
4090 | case errSSLServerAuthCompleted : |
4091 | error = 0; | |
4092 | if (cg->server_cert_cb) | |
4093 | { | |
4094 | error = httpCopyCredentials(http, &credentials); | |
4095 | if (!error) | |
4096 | { | |
4097 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
4098 | cg->server_cert_data); | |
4099 | httpFreeCredentials(credentials); | |
4100 | } | |
4101 | ||
10ddcf65 MS |
4102 | DEBUG_printf(("4http_setup_ssl: Server certificate callback " |
4103 | "returned %d.", (int)error)); | |
7cf5915e MS |
4104 | } |
4105 | break; | |
4106 | ||
4107 | case errSSLClientCertRequested : | |
4108 | error = 0; | |
4109 | ||
4110 | if (cg->client_cert_cb) | |
4111 | { | |
4112 | names = NULL; | |
82f97232 | 4113 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && |
7cf5915e MS |
4114 | dn_array) |
4115 | { | |
4116 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
4117 | { | |
4118 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
4119 | { | |
4120 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
4121 | ||
4122 | if ((credential = malloc(sizeof(*credential)))) | |
4123 | { | |
4124 | credential->datalen = CFDataGetLength(data); | |
4125 | if ((credential->data = malloc(credential->datalen))) | |
4126 | { | |
82f97232 | 4127 | memcpy((void *)credential->data, CFDataGetBytePtr(data), |
7cf5915e MS |
4128 | credential->datalen); |
4129 | cupsArrayAdd(names, credential); | |
4130 | } | |
4131 | } | |
4132 | } | |
4133 | } | |
4134 | ||
4135 | CFRelease(dn_array); | |
4136 | } | |
4137 | ||
4138 | if (!error) | |
4139 | { | |
82f97232 | 4140 | error = (cg->client_cert_cb)(http, http->tls, names, |
7cf5915e MS |
4141 | cg->client_cert_data); |
4142 | ||
85dda01c | 4143 | DEBUG_printf(("4http_setup_ssl: Client certificate callback " |
7cf5915e MS |
4144 | "returned %d.", (int)error)); |
4145 | } | |
4146 | ||
4147 | httpFreeCredentials(names); | |
4148 | } | |
4149 | break; | |
82f97232 | 4150 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
7cf5915e MS |
4151 | |
4152 | case errSSLUnknownRootCert : | |
4153 | message = _("Unable to establish a secure connection to host " | |
4154 | "(untrusted certificate)."); | |
4155 | break; | |
4156 | ||
4157 | case errSSLNoRootCert : | |
4158 | message = _("Unable to establish a secure connection to host " | |
4159 | "(self-signed certificate)."); | |
4160 | break; | |
4161 | ||
4162 | case errSSLCertExpired : | |
4163 | message = _("Unable to establish a secure connection to host " | |
4164 | "(expired certificate)."); | |
4165 | break; | |
4166 | ||
4167 | case errSSLCertNotYetValid : | |
4168 | message = _("Unable to establish a secure connection to host " | |
4169 | "(certificate not yet valid)."); | |
4170 | break; | |
4171 | ||
4172 | case errSSLHostNameMismatch : | |
4173 | message = _("Unable to establish a secure connection to host " | |
4174 | "(host name mismatch)."); | |
4175 | break; | |
4176 | ||
4177 | case errSSLXCertChainInvalid : | |
4178 | message = _("Unable to establish a secure connection to host " | |
4179 | "(certificate chain invalid)."); | |
4180 | break; | |
4181 | ||
4182 | case errSSLConnectionRefused : | |
4183 | message = _("Unable to establish a secure connection to host " | |
4184 | "(peer dropped connection before responding)."); | |
4185 | break; | |
4186 | ||
4187 | default : | |
4188 | break; | |
4189 | } | |
4190 | } | |
b423cd4c | 4191 | } |
ef416fc2 | 4192 | |
89d46774 | 4193 | if (error) |
ef416fc2 | 4194 | { |
4195 | http->error = error; | |
4196 | http->status = HTTP_ERROR; | |
7cf5915e MS |
4197 | errno = ECONNREFUSED; |
4198 | ||
4199 | SSLDisposeContext(http->tls); | |
4200 | http->tls = NULL; | |
ef416fc2 | 4201 | |
7cf5915e MS |
4202 | /* |
4203 | * If an error string wasn't set by the callbacks use a generic one... | |
4204 | */ | |
4205 | ||
4206 | if (!message) | |
4207 | #ifdef HAVE_CSSMERRORSTRING | |
4208 | message = cssmErrorString(error); | |
4209 | #else | |
4210 | message = _("Unable to establish a secure connection to host."); | |
4211 | #endif /* HAVE_CSSMERRORSTRING */ | |
ef416fc2 | 4212 | |
7cf5915e | 4213 | _cupsSetError(IPP_PKI_ERROR, message, 1); |
ef416fc2 | 4214 | |
cc754834 MS |
4215 | return (-1); |
4216 | } | |
7cf5915e | 4217 | |
cc754834 | 4218 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 4219 | http->tls = _sspiAlloc(); |
cc754834 | 4220 | |
7cf5915e | 4221 | if (!http->tls) |
a4845881 | 4222 | { |
83e08001 | 4223 | _cupsSetHTTPError(HTTP_ERROR); |
cc754834 | 4224 | return (-1); |
83e08001 | 4225 | } |
cc754834 | 4226 | |
7cf5915e MS |
4227 | http->tls->sock = http->fd; |
4228 | dwSize = sizeof(username) / sizeof(TCHAR); | |
cc754834 MS |
4229 | GetUserName(username, &dwSize); |
4230 | _sntprintf_s(commonName, sizeof(commonName) / sizeof(TCHAR), | |
4231 | sizeof(commonName) / sizeof(TCHAR), TEXT("CN=%s"), username); | |
4232 | ||
7cf5915e MS |
4233 | if (!_sspiGetCredentials(http->tls_credentials, L"ClientContainer", |
4234 | commonName, FALSE)) | |
cc754834 | 4235 | { |
7cf5915e MS |
4236 | _sspiFree(http->tls_credentials); |
4237 | http->tls_credentials = NULL; | |
a4845881 MS |
4238 | |
4239 | http->error = EIO; | |
4240 | http->status = HTTP_ERROR; | |
4241 | ||
4242 | _cupsSetError(IPP_PKI_ERROR, | |
4243 | _("Unable to establish a secure connection to host."), 1); | |
4244 | ||
cc754834 MS |
4245 | return (-1); |
4246 | } | |
4247 | ||
83e08001 | 4248 | _sspiSetAllowsAnyRoot(http->tls_credentials, any_root); |
7cf5915e | 4249 | _sspiSetAllowsExpiredCerts(http->tls_credentials, TRUE); |
cc754834 | 4250 | |
7cf5915e | 4251 | if (!_sspiConnect(http->tls_credentials, http->hostname)) |
cc754834 | 4252 | { |
7cf5915e MS |
4253 | _sspiFree(http->tls_credentials); |
4254 | http->tls_credentials = NULL; | |
a4845881 MS |
4255 | |
4256 | http->error = EIO; | |
4257 | http->status = HTTP_ERROR; | |
4258 | ||
4259 | _cupsSetError(IPP_PKI_ERROR, | |
4260 | _("Unable to establish a secure connection to host."), 1); | |
4261 | ||
ef416fc2 | 4262 | return (-1); |
4263 | } | |
4264 | # endif /* HAVE_CDSASSL */ | |
4265 | ||
ef416fc2 | 4266 | return (0); |
4267 | } | |
ef416fc2 | 4268 | |
4269 | ||
ef416fc2 | 4270 | /* |
4271 | * 'http_shutdown_ssl()' - Shut down SSL/TLS on a connection. | |
4272 | */ | |
4273 | ||
4274 | static void | |
568fa3fa | 4275 | http_shutdown_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 4276 | { |
4277 | # ifdef HAVE_LIBSSL | |
89d46774 | 4278 | SSL_CTX *context; /* Context for encryption */ |
ef416fc2 | 4279 | |
a4845881 | 4280 | context = SSL_get_SSL_CTX(http->tls); |
ef416fc2 | 4281 | |
a4845881 | 4282 | SSL_shutdown(http->tls); |
ef416fc2 | 4283 | SSL_CTX_free(context); |
a4845881 | 4284 | SSL_free(http->tls); |
ef416fc2 | 4285 | |
4286 | # elif defined(HAVE_GNUTLS) | |
ef416fc2 | 4287 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 4288 | /* TLS credentials */ |
ef416fc2 | 4289 | |
7cf5915e | 4290 | credentials = (gnutls_certificate_client_credentials *)(http->tls_credentials); |
ef416fc2 | 4291 | |
7cf5915e MS |
4292 | gnutls_bye(http->tls, GNUTLS_SHUT_RDWR); |
4293 | gnutls_deinit(http->tls); | |
ef416fc2 | 4294 | gnutls_certificate_free_credentials(*credentials); |
4295 | free(credentials); | |
ef416fc2 | 4296 | |
4297 | # elif defined(HAVE_CDSASSL) | |
7cf5915e | 4298 | while (SSLClose(http->tls) == errSSLWouldBlock) |
b423cd4c | 4299 | usleep(1000); |
4300 | ||
7cf5915e | 4301 | SSLDisposeContext(http->tls); |
89d46774 | 4302 | |
7cf5915e MS |
4303 | if (http->tls_credentials) |
4304 | CFRelease(http->tls_credentials); | |
89d46774 | 4305 | |
cc754834 | 4306 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 4307 | _sspiFree(http->tls_credentials); |
ef416fc2 | 4308 | # endif /* HAVE_LIBSSL */ |
4309 | ||
7cf5915e MS |
4310 | http->tls = NULL; |
4311 | http->tls_credentials = NULL; | |
ef416fc2 | 4312 | } |
4313 | #endif /* HAVE_SSL */ | |
4314 | ||
4315 | ||
4316 | #ifdef HAVE_SSL | |
4317 | /* | |
4318 | * 'http_upgrade()' - Force upgrade to TLS encryption. | |
4319 | */ | |
4320 | ||
89d46774 | 4321 | static int /* O - Status of connection */ |
568fa3fa | 4322 | http_upgrade(http_t *http) /* I - Connection to server */ |
ef416fc2 | 4323 | { |
89d46774 | 4324 | int ret; /* Return value */ |
4325 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4326 | |
4327 | ||
e07d4801 | 4328 | DEBUG_printf(("7http_upgrade(%p)", http)); |
ef416fc2 | 4329 | |
85b5d1df MS |
4330 | /* |
4331 | * Flush the connection to make sure any previous "Upgrade" message | |
4332 | * has been read. | |
4333 | */ | |
4334 | ||
4335 | httpFlush(http); | |
4336 | ||
ef416fc2 | 4337 | /* |
4338 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4339 | * request without interfering with the existing request data... | |
4340 | */ | |
4341 | ||
4342 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4343 | ||
4344 | /* | |
4345 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4346 | * encryption on the link... | |
4347 | */ | |
4348 | ||
f7deaa1a | 4349 | http->field_authorization = NULL; /* Don't free the auth string */ |
4350 | ||
b86bc4cf | 4351 | httpClearFields(http); |
4352 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
7cf5915e | 4353 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2, TLS/1.1, TLS/1.0, SSL/3.0"); |
ef416fc2 | 4354 | |
b86bc4cf | 4355 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4356 | { |
4357 | /* | |
4358 | * Wait for the secure connection... | |
4359 | */ | |
4360 | ||
b86bc4cf | 4361 | while (httpUpdate(http) == HTTP_CONTINUE); |
ef416fc2 | 4362 | } |
4363 | ||
ef416fc2 | 4364 | /* |
b86bc4cf | 4365 | * Restore the HTTP request data... |
ef416fc2 | 4366 | */ |
4367 | ||
b86bc4cf | 4368 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4369 | http->data_encoding = myhttp.data_encoding; |
4370 | http->data_remaining = myhttp.data_remaining; | |
4371 | http->_data_remaining = myhttp._data_remaining; | |
4372 | http->expect = myhttp.expect; | |
4373 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4374 | http->digest_tries = myhttp.digest_tries; |
ef416fc2 | 4375 | |
4376 | /* | |
4377 | * See if we actually went secure... | |
4378 | */ | |
4379 | ||
4380 | if (!http->tls) | |
4381 | { | |
4382 | /* | |
4383 | * Server does not support HTTP upgrade... | |
4384 | */ | |
4385 | ||
e07d4801 | 4386 | DEBUG_puts("8http_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4387 | |
4388 | # ifdef WIN32 | |
4389 | closesocket(http->fd); | |
4390 | # else | |
4391 | close(http->fd); | |
4392 | # endif | |
4393 | ||
4394 | http->fd = -1; | |
4395 | ||
4396 | return (-1); | |
4397 | } | |
4398 | else | |
4399 | return (ret); | |
4400 | } | |
4401 | #endif /* HAVE_SSL */ | |
4402 | ||
4403 | ||
ef416fc2 | 4404 | /* |
4405 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4406 | */ | |
ef55b745 | 4407 | |
ef416fc2 | 4408 | static int /* O - Number of bytes written */ |
568fa3fa | 4409 | http_write(http_t *http, /* I - Connection to server */ |
f11a948a MS |
4410 | const char *buffer, /* I - Buffer for data */ |
4411 | int length) /* I - Number of bytes to write */ | |
ef416fc2 | 4412 | { |
4413 | int tbytes, /* Total bytes sent */ | |
4414 | bytes; /* Bytes sent */ | |
4415 | ||
4416 | ||
f8b3a85b MS |
4417 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=%d)", http, buffer, |
4418 | length)); | |
f11a948a MS |
4419 | http->error = 0; |
4420 | tbytes = 0; | |
ef416fc2 | 4421 | |
4422 | while (length > 0) | |
4423 | { | |
85dda01c MS |
4424 | if (http->timeout_cb) |
4425 | { | |
4426 | #ifdef HAVE_POLL | |
4427 | struct pollfd pfd; /* Polled file descriptor */ | |
4428 | #else | |
4429 | fd_set output_set; /* Output ready for write? */ | |
4430 | struct timeval timeout; /* Timeout value */ | |
4431 | #endif /* HAVE_POLL */ | |
4432 | int nfds; /* Result from select()/poll() */ | |
4433 | ||
4434 | do | |
4435 | { | |
4436 | #ifdef HAVE_POLL | |
4437 | pfd.fd = http->fd; | |
4438 | pfd.events = POLLOUT; | |
4439 | ||
4440 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
4441 | (errno == EINTR || errno == EAGAIN)); | |
4442 | ||
4443 | #else | |
4444 | do | |
4445 | { | |
4446 | FD_ZERO(&output_set); | |
4447 | FD_SET(http->fd, &output_set); | |
4448 | ||
4449 | timeout.tv_sec = http->wait_value / 1000; | |
4450 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4451 | ||
4452 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4453 | } | |
4454 | # ifdef WIN32 | |
4455 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4456 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4457 | # else | |
4458 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4459 | # endif /* WIN32 */ | |
4460 | #endif /* HAVE_POLL */ | |
4461 | ||
4462 | if (nfds < 0) | |
4463 | { | |
4464 | http->error = errno; | |
4465 | return (-1); | |
4466 | } | |
4467 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
4468 | { | |
4469 | #ifdef WIN32 | |
83e08001 | 4470 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4471 | #else |
4472 | http->error = EWOULDBLOCK; | |
4473 | #endif /* WIN32 */ | |
4474 | return (-1); | |
4475 | } | |
4476 | } | |
4477 | while (nfds <= 0); | |
4478 | } | |
4479 | ||
ef416fc2 | 4480 | #ifdef HAVE_SSL |
4481 | if (http->tls) | |
4482 | bytes = http_write_ssl(http, buffer, length); | |
4483 | else | |
4484 | #endif /* HAVE_SSL */ | |
4485 | bytes = send(http->fd, buffer, length, 0); | |
4486 | ||
4487 | if (bytes < 0) | |
4488 | { | |
4489 | #ifdef WIN32 | |
10d09e33 | 4490 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4491 | continue; |
10d09e33 MS |
4492 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4493 | { | |
4494 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4495 | continue; | |
4496 | ||
4497 | http->error = WSAGetLastError(); | |
4498 | } | |
4499 | else if (WSAGetLastError() != http->error && | |
4500 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4501 | { |
4502 | http->error = WSAGetLastError(); | |
4503 | continue; | |
4504 | } | |
10d09e33 | 4505 | |
ef416fc2 | 4506 | #else |
10d09e33 | 4507 | if (errno == EINTR) |
ef416fc2 | 4508 | continue; |
10d09e33 MS |
4509 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4510 | { | |
4511 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4512 | continue; | |
4513 | else if (!http->timeout_cb && errno == EAGAIN) | |
4514 | continue; | |
4515 | ||
4516 | http->error = errno; | |
4517 | } | |
ef416fc2 | 4518 | else if (errno != http->error && errno != ECONNRESET) |
4519 | { | |
4520 | http->error = errno; | |
4521 | continue; | |
4522 | } | |
4523 | #endif /* WIN32 */ | |
4524 | ||
f8b3a85b MS |
4525 | DEBUG_printf(("3http_write: error writing data (%s).", |
4526 | strerror(http->error))); | |
ef416fc2 | 4527 | |
4528 | return (-1); | |
4529 | } | |
4530 | ||
4531 | buffer += bytes; | |
4532 | tbytes += bytes; | |
4533 | length -= bytes; | |
4534 | } | |
4535 | ||
4536 | #ifdef DEBUG | |
ae71f5de | 4537 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 4538 | #endif /* DEBUG */ |
4539 | ||
f8b3a85b MS |
4540 | DEBUG_printf(("3http_write: Returning %d.", tbytes)); |
4541 | ||
ef416fc2 | 4542 | return (tbytes); |
4543 | } | |
4544 | ||
4545 | ||
4546 | /* | |
4547 | * 'http_write_chunk()' - Write a chunked buffer. | |
4548 | */ | |
4549 | ||
4550 | static int /* O - Number bytes written */ | |
568fa3fa | 4551 | http_write_chunk(http_t *http, /* I - Connection to server */ |
ef416fc2 | 4552 | const char *buffer, /* I - Buffer to write */ |
4553 | int length) /* I - Length of buffer */ | |
4554 | { | |
4555 | char header[255]; /* Chunk header */ | |
4556 | int bytes; /* Bytes written */ | |
4557 | ||
f11a948a | 4558 | |
e07d4801 | 4559 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=%d)", |
ef416fc2 | 4560 | http, buffer, length)); |
4561 | ||
4562 | /* | |
4563 | * Write the chunk header, data, and trailer. | |
4564 | */ | |
4565 | ||
4566 | sprintf(header, "%x\r\n", length); | |
b86bc4cf | 4567 | if (http_write(http, header, (int)strlen(header)) < 0) |
ef416fc2 | 4568 | { |
e07d4801 | 4569 | DEBUG_puts("8http_write_chunk: http_write of length failed!"); |
ef416fc2 | 4570 | return (-1); |
4571 | } | |
4572 | ||
4573 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4574 | { | |
e07d4801 | 4575 | DEBUG_puts("8http_write_chunk: http_write of buffer failed!"); |
ef416fc2 | 4576 | return (-1); |
4577 | } | |
4578 | ||
4579 | if (http_write(http, "\r\n", 2) < 0) | |
4580 | { | |
e07d4801 | 4581 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed!"); |
ef416fc2 | 4582 | return (-1); |
4583 | } | |
4584 | ||
4585 | return (bytes); | |
4586 | } | |
4587 | ||
4588 | ||
4589 | #ifdef HAVE_SSL | |
4590 | /* | |
4591 | * 'http_write_ssl()' - Write to a SSL/TLS connection. | |
4592 | */ | |
4593 | ||
4594 | static int /* O - Bytes written */ | |
568fa3fa | 4595 | http_write_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 4596 | const char *buf, /* I - Buffer holding data */ |
4597 | int len) /* I - Length of buffer */ | |
4598 | { | |
f8b3a85b MS |
4599 | ssize_t result; /* Return value */ |
4600 | ||
4601 | ||
4602 | DEBUG_printf(("2http_write_ssl(http=%p, buf=%p, len=%d)", http, buf, len)); | |
4603 | ||
ef416fc2 | 4604 | # if defined(HAVE_LIBSSL) |
f8b3a85b | 4605 | result = SSL_write((SSL *)(http->tls), buf, len); |
ef416fc2 | 4606 | |
4607 | # elif defined(HAVE_GNUTLS) | |
7cf5915e | 4608 | result = gnutls_record_send(http->tls, buf, len); |
ef55b745 MS |
4609 | |
4610 | if (result < 0 && !errno) | |
4611 | { | |
4612 | /* | |
4613 | * Convert GNU TLS error to errno value... | |
4614 | */ | |
4615 | ||
4616 | switch (result) | |
4617 | { | |
4618 | case GNUTLS_E_INTERRUPTED : | |
4619 | errno = EINTR; | |
4620 | break; | |
4621 | ||
4622 | case GNUTLS_E_AGAIN : | |
4623 | errno = EAGAIN; | |
4624 | break; | |
4625 | ||
4626 | default : | |
4627 | errno = EPIPE; | |
4628 | break; | |
4629 | } | |
4630 | ||
4631 | result = -1; | |
4632 | } | |
4633 | ||
ef416fc2 | 4634 | # elif defined(HAVE_CDSASSL) |
4635 | OSStatus error; /* Error info */ | |
4636 | size_t processed; /* Number of bytes processed */ | |
4637 | ||
4638 | ||
7cf5915e | 4639 | error = SSLWrite(http->tls, buf, len, &processed); |
ef416fc2 | 4640 | |
fa73b229 | 4641 | switch (error) |
ef416fc2 | 4642 | { |
fa73b229 | 4643 | case 0 : |
4644 | result = (int)processed; | |
4645 | break; | |
84315f46 | 4646 | |
fa73b229 | 4647 | case errSSLWouldBlock : |
b423cd4c | 4648 | if (processed) |
4649 | result = (int)processed; | |
4650 | else | |
4651 | { | |
4652 | result = -1; | |
ef55b745 | 4653 | errno = EINTR; |
b423cd4c | 4654 | } |
fa73b229 | 4655 | break; |
84315f46 MS |
4656 | |
4657 | case errSSLClosedGraceful : | |
fa73b229 | 4658 | default : |
84315f46 MS |
4659 | if (processed) |
4660 | result = (int)processed; | |
4661 | else | |
4662 | { | |
4663 | result = -1; | |
4664 | errno = EPIPE; | |
4665 | } | |
fa73b229 | 4666 | break; |
ef416fc2 | 4667 | } |
cc754834 | 4668 | # elif defined(HAVE_SSPISSL) |
84315f46 | 4669 | return _sspiWrite((_sspi_struct_t *)http->tls, (void *)buf, len); |
ef416fc2 | 4670 | # endif /* HAVE_LIBSSL */ |
f8b3a85b MS |
4671 | |
4672 | DEBUG_printf(("3http_write_ssl: Returning %d.", (int)result)); | |
4673 | ||
4674 | return ((int)result); | |
ef416fc2 | 4675 | } |
4676 | #endif /* HAVE_SSL */ | |
4677 | ||
4678 | ||
4679 | /* | |
b19ccc9e | 4680 | * End of "$Id: http.c 7850 2008-08-20 00:07:25Z mike $". |
ef416fc2 | 4681 | */ |