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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 | * | |
a2326b5b 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. | |
37 | * _httpCreate() - Create an unconnected HTTP connection. | |
38 | * _httpCreateCredentials() - Create credentials in the internal format. | |
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 | * httpGets() - Get a line of text from a HTTP connection. | |
60 | * httpGetState() - Get the current state of the HTTP request. | |
61 | * httpGetStatus() - Get the status of the last HTTP request. | |
62 | * httpGetSubField() - Get a sub-field value. | |
63 | * httpGetSubField2() - Get a sub-field value. | |
64 | * httpGetVersion() - Get the HTTP version at the other end. | |
65 | * httpHead() - Send a HEAD request to the server. | |
66 | * httpInitialize() - Initialize the HTTP interface library and set | |
67 | * the default HTTP proxy (if any). | |
68 | * httpOptions() - Send an OPTIONS request to the server. | |
69 | * _httpPeek() - Peek at data from a HTTP connection. | |
70 | * httpPost() - Send a POST request to the server. | |
71 | * httpPrintf() - Print a formatted string to a HTTP connection. | |
72 | * httpPut() - Send a PUT request to the server. | |
73 | * httpRead() - Read data from a HTTP connection. | |
74 | * httpRead2() - Read data from a HTTP connection. | |
75 | * _httpReadCDSA() - Read function for the CDSA library. | |
76 | * _httpReadGNUTLS() - Read function for the GNU TLS library. | |
77 | * httpReconnect() - Reconnect to a HTTP server. | |
78 | * httpSetAuthString() - Set the current authorization string. | |
79 | * httpSetCredentials() - Set the credentials associated with an | |
80 | * encrypted connection. | |
81 | * httpSetCookie() - Set the cookie value(s). | |
82 | * httpSetExpect() - Set the Expect: header in a request. | |
83 | * httpSetField() - Set the value of an HTTP header. | |
84 | * httpSetLength() - Set the content-length and content-encoding. | |
85 | * httpSetTimeout() - Set read/write timeouts and an optional | |
86 | * callback. | |
87 | * httpTrace() - Send an TRACE request to the server. | |
88 | * _httpUpdate() - Update the current HTTP status for incoming | |
89 | * data. | |
90 | * httpUpdate() - Update the current HTTP state for incoming | |
91 | * data. | |
92 | * _httpWait() - Wait for data available on a connection (no | |
93 | * flush). | |
94 | * httpWait() - Wait for data available on a connection. | |
95 | * httpWrite() - Write data to a HTTP connection. | |
96 | * httpWrite2() - Write data to a HTTP connection. | |
97 | * _httpWriteCDSA() - Write function for the CDSA library. | |
98 | * _httpWriteGNUTLS() - Write function for the GNU TLS library. | |
99 | * http_bio_ctrl() - Control the HTTP connection. | |
100 | * http_bio_free() - Free OpenSSL data. | |
101 | * http_bio_new() - Initialize an OpenSSL BIO structure. | |
102 | * http_bio_puts() - Send a string for OpenSSL. | |
103 | * http_bio_read() - Read data for OpenSSL. | |
104 | * http_bio_write() - Write data for OpenSSL. | |
105 | * http_debug_hex() - Do a hex dump of a buffer. | |
106 | * http_field() - Return the field index for a field name. | |
107 | * http_read_ssl() - Read from a SSL/TLS connection. | |
108 | * http_send() - Send a request with all fields and the trailing | |
109 | * blank line. | |
110 | * http_set_credentials() - Set the SSL/TLS credentials. | |
111 | * http_set_timeout() - Set the socket timeout values. | |
112 | * http_set_wait() - Set the default wait value for reads. | |
113 | * http_setup_ssl() - Set up SSL/TLS support on a connection. | |
114 | * http_shutdown_ssl() - Shut down SSL/TLS on a connection. | |
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 */ |
d7225fc2 | 170 | #endif /* HAVE_SSL */ |
85dda01c MS |
171 | static void http_set_timeout(int fd, double timeout); |
172 | static void http_set_wait(http_t *http); | |
d7225fc2 | 173 | #ifdef HAVE_SSL |
ef416fc2 | 174 | static int http_setup_ssl(http_t *http); |
175 | static void http_shutdown_ssl(http_t *http); | |
176 | static int http_upgrade(http_t *http); | |
177 | static int http_write_ssl(http_t *http, const char *buf, int len); | |
178 | #endif /* HAVE_SSL */ | |
179 | ||
180 | ||
181 | /* | |
182 | * Local globals... | |
183 | */ | |
184 | ||
185 | static const char * const http_fields[] = | |
186 | { | |
187 | "Accept-Language", | |
188 | "Accept-Ranges", | |
189 | "Authorization", | |
190 | "Connection", | |
191 | "Content-Encoding", | |
192 | "Content-Language", | |
193 | "Content-Length", | |
194 | "Content-Location", | |
195 | "Content-MD5", | |
196 | "Content-Range", | |
197 | "Content-Type", | |
198 | "Content-Version", | |
199 | "Date", | |
200 | "Host", | |
201 | "If-Modified-Since", | |
202 | "If-Unmodified-since", | |
203 | "Keep-Alive", | |
204 | "Last-Modified", | |
205 | "Link", | |
206 | "Location", | |
207 | "Range", | |
208 | "Referer", | |
209 | "Retry-After", | |
210 | "Transfer-Encoding", | |
211 | "Upgrade", | |
212 | "User-Agent", | |
213 | "WWW-Authenticate" | |
214 | }; | |
f11a948a MS |
215 | #ifdef DEBUG |
216 | static const char * const http_states[] = | |
217 | { | |
218 | "HTTP_WAITING", | |
219 | "HTTP_OPTIONS", | |
220 | "HTTP_GET", | |
221 | "HTTP_GET_SEND", | |
222 | "HTTP_HEAD", | |
223 | "HTTP_POST", | |
224 | "HTTP_POST_RECV", | |
225 | "HTTP_POST_SEND", | |
226 | "HTTP_PUT", | |
227 | "HTTP_PUT_RECV", | |
228 | "HTTP_DELETE", | |
229 | "HTTP_TRACE", | |
230 | "HTTP_CLOSE", | |
231 | "HTTP_STATUS" | |
232 | }; | |
233 | #endif /* DEBUG */ | |
ef416fc2 | 234 | |
235 | ||
411affcf | 236 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) |
237 | /* | |
238 | * BIO methods for OpenSSL... | |
239 | */ | |
240 | ||
241 | static int http_bio_write(BIO *h, const char *buf, int num); | |
242 | static int http_bio_read(BIO *h, char *buf, int size); | |
243 | static int http_bio_puts(BIO *h, const char *str); | |
244 | static long http_bio_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
245 | static int http_bio_new(BIO *h); | |
246 | static int http_bio_free(BIO *data); | |
247 | ||
248 | static BIO_METHOD http_bio_methods = | |
249 | { | |
250 | BIO_TYPE_SOCKET, | |
251 | "http", | |
252 | http_bio_write, | |
253 | http_bio_read, | |
254 | http_bio_puts, | |
255 | NULL, /* http_bio_gets, */ | |
256 | http_bio_ctrl, | |
257 | http_bio_new, | |
258 | http_bio_free, | |
259 | NULL, | |
260 | }; | |
7cf5915e | 261 | #endif /* HAVE_SSL && HAVE_LIBSSL */ |
411affcf | 262 | |
263 | ||
7cf5915e MS |
264 | /* |
265 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
266 | * | |
267 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
268 | * | |
321d8d57 | 269 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
270 | */ |
271 | ||
272 | int /* O - 0 on success, -1 on error */ | |
273 | httpAddCredential( | |
274 | cups_array_t *credentials, /* I - Credentials array */ | |
275 | const void *data, /* I - PEM-encoded X.509 data */ | |
276 | size_t datalen) /* I - Length of data */ | |
277 | { | |
278 | http_credential_t *credential; /* Credential data */ | |
279 | ||
280 | ||
281 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
282 | { | |
283 | credential->datalen = datalen; | |
284 | ||
285 | if ((credential->data = malloc(datalen)) != NULL) | |
286 | { | |
287 | memcpy(credential->data, data, datalen); | |
288 | cupsArrayAdd(credentials, credential); | |
289 | return (0); | |
290 | } | |
291 | ||
292 | free(credential); | |
293 | } | |
294 | ||
295 | return (-1); | |
296 | } | |
297 | ||
298 | ||
299 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
411affcf | 300 | /* |
301 | * '_httpBIOMethods()' - Get the OpenSSL BIO methods for HTTP connections. | |
302 | */ | |
303 | ||
304 | BIO_METHOD * /* O - BIO methods for OpenSSL */ | |
305 | _httpBIOMethods(void) | |
306 | { | |
307 | return (&http_bio_methods); | |
308 | } | |
309 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
310 | ||
311 | ||
ecdc0628 | 312 | /* |
313 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
314 | */ | |
315 | ||
316 | void | |
568fa3fa | 317 | httpBlocking(http_t *http, /* I - Connection to server */ |
ecdc0628 | 318 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
319 | { | |
320 | if (http) | |
85dda01c | 321 | { |
ecdc0628 | 322 | http->blocking = b; |
85dda01c MS |
323 | http_set_wait(http); |
324 | } | |
ecdc0628 | 325 | } |
326 | ||
327 | ||
ef416fc2 | 328 | /* |
329 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
330 | */ | |
331 | ||
ecdc0628 | 332 | int /* O - 0 = no data, 1 = data available */ |
568fa3fa | 333 | httpCheck(http_t *http) /* I - Connection to server */ |
ef416fc2 | 334 | { |
335 | return (httpWait(http, 0)); | |
336 | } | |
337 | ||
338 | ||
339 | /* | |
340 | * 'httpClearCookie()' - Clear the cookie value(s). | |
341 | * | |
426c6a59 | 342 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 343 | */ |
344 | ||
345 | void | |
568fa3fa | 346 | httpClearCookie(http_t *http) /* I - Connection to server */ |
ef416fc2 | 347 | { |
348 | if (!http) | |
349 | return; | |
350 | ||
351 | if (http->cookie) | |
352 | { | |
353 | free(http->cookie); | |
354 | http->cookie = NULL; | |
355 | } | |
356 | } | |
357 | ||
358 | ||
ecdc0628 | 359 | /* |
360 | * 'httpClearFields()' - Clear HTTP request fields. | |
361 | */ | |
362 | ||
363 | void | |
568fa3fa | 364 | httpClearFields(http_t *http) /* I - Connection to server */ |
ecdc0628 | 365 | { |
366 | if (http) | |
367 | { | |
368 | memset(http->fields, 0, sizeof(http->fields)); | |
07725fee | 369 | if (http->hostname[0] == '/') |
370 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
371 | else | |
372 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
b423cd4c | 373 | |
f7deaa1a | 374 | if (http->field_authorization) |
375 | { | |
376 | free(http->field_authorization); | |
377 | http->field_authorization = NULL; | |
378 | } | |
379 | ||
b423cd4c | 380 | http->expect = (http_status_t)0; |
ecdc0628 | 381 | } |
382 | } | |
383 | ||
384 | ||
ef416fc2 | 385 | /* |
6d2f911b | 386 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 387 | */ |
388 | ||
389 | void | |
568fa3fa | 390 | httpClose(http_t *http) /* I - Connection to server */ |
ef416fc2 | 391 | { |
f7deaa1a | 392 | #ifdef HAVE_GSSAPI |
1f0275e3 | 393 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 394 | #endif /* HAVE_GSSAPI */ |
395 | ||
396 | ||
e07d4801 | 397 | DEBUG_printf(("httpClose(http=%p)", http)); |
ef416fc2 | 398 | |
6d2f911b MS |
399 | /* |
400 | * Range check input... | |
401 | */ | |
402 | ||
ef416fc2 | 403 | if (!http) |
404 | return; | |
405 | ||
6d2f911b MS |
406 | /* |
407 | * Close any open connection... | |
408 | */ | |
409 | ||
410 | _httpDisconnect(http); | |
411 | ||
412 | /* | |
413 | * Free memory used... | |
414 | */ | |
415 | ||
ef416fc2 | 416 | httpAddrFreeList(http->addrlist); |
417 | ||
ef416fc2 | 418 | if (http->cookie) |
419 | free(http->cookie); | |
420 | ||
f7deaa1a | 421 | #ifdef HAVE_GSSAPI |
422 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 423 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 424 | |
425 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 426 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 427 | #endif /* HAVE_GSSAPI */ |
428 | ||
b94498cf | 429 | #ifdef HAVE_AUTHORIZATION_H |
430 | if (http->auth_ref) | |
431 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
432 | #endif /* HAVE_AUTHORIZATION_H */ | |
433 | ||
f7deaa1a | 434 | httpClearFields(http); |
435 | ||
436 | if (http->authstring && http->authstring != http->_authstring) | |
437 | free(http->authstring); | |
438 | ||
ef416fc2 | 439 | free(http); |
440 | } | |
441 | ||
442 | ||
443 | /* | |
444 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e MS |
445 | * |
446 | * This function is deprecated - use @link httpConnectEncrypt@ instead. | |
447 | * | |
448 | * @deprecated@ | |
ef416fc2 | 449 | */ |
450 | ||
451 | http_t * /* O - New HTTP connection */ | |
452 | httpConnect(const char *host, /* I - Host to connect to */ | |
453 | int port) /* I - Port number */ | |
454 | { | |
1ff0402e MS |
455 | return (httpConnectEncrypt(host, port, HTTP_ENCRYPT_IF_REQUESTED)); |
456 | } | |
457 | ||
458 | ||
459 | /* | |
460 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
461 | */ | |
462 | ||
463 | http_t * /* O - New HTTP connection */ | |
464 | httpConnectEncrypt( | |
465 | const char *host, /* I - Host to connect to */ | |
466 | int port, /* I - Port number */ | |
467 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
468 | { | |
469 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 470 | |
471 | ||
e07d4801 | 472 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", |
1ff0402e MS |
473 | host, port, encryption)); |
474 | ||
ef416fc2 | 475 | /* |
1ff0402e | 476 | * Create the HTTP structure... |
ef416fc2 | 477 | */ |
478 | ||
c8fef167 | 479 | if ((http = _httpCreate(host, port, NULL, encryption, AF_UNSPEC)) == NULL) |
1ff0402e | 480 | return (NULL); |
ef416fc2 | 481 | |
1ff0402e MS |
482 | /* |
483 | * Connect to the remote system... | |
484 | */ | |
485 | ||
486 | if (!httpReconnect(http)) | |
487 | return (http); | |
488 | ||
489 | /* | |
490 | * Could not connect to any known address - bail out! | |
491 | */ | |
492 | ||
493 | httpAddrFreeList(http->addrlist); | |
494 | ||
495 | free(http); | |
496 | ||
497 | return (NULL); | |
ef416fc2 | 498 | } |
499 | ||
500 | ||
7cf5915e MS |
501 | /* |
502 | * 'httpCopyCredentials()' - Copy the credentials associated with an encrypted | |
503 | * connection. | |
504 | * | |
321d8d57 | 505 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
506 | */ |
507 | ||
508 | int /* O - Status of call (0 = success) */ | |
509 | httpCopyCredentials( | |
510 | http_t *http, /* I - Connection to server */ | |
511 | cups_array_t **credentials) /* O - Array of credentials */ | |
512 | { | |
513 | # ifdef HAVE_LIBSSL | |
514 | # elif defined(HAVE_GNUTLS) | |
82f97232 | 515 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
516 | OSStatus error; /* Error code */ |
517 | CFIndex count; /* Number of credentials */ | |
518 | CFArrayRef peerCerts; /* Peer certificates */ | |
519 | SecCertificateRef secCert; /* Certificate reference */ | |
520 | CFDataRef data; /* Certificate data */ | |
521 | int i; /* Looping var */ | |
522 | # elif defined(HAVE_SSPISSL) | |
523 | # endif /* HAVE_LIBSSL */ | |
524 | ||
525 | ||
526 | if (credentials) | |
527 | *credentials = NULL; | |
528 | ||
529 | if (!http || !http->tls || !credentials) | |
530 | return (-1); | |
531 | ||
532 | # ifdef HAVE_LIBSSL | |
533 | return (-1); | |
534 | ||
535 | # elif defined(HAVE_GNUTLS) | |
536 | return (-1); | |
537 | ||
82f97232 | 538 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
539 | if (!(error = SSLCopyPeerCertificates(http->tls, &peerCerts)) && peerCerts) |
540 | { | |
541 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) | |
542 | { | |
543 | for (i = 0, count = CFArrayGetCount(peerCerts); i < count; i++) | |
544 | { | |
545 | secCert = (SecCertificateRef)CFArrayGetValueAtIndex(peerCerts, i); | |
546 | if ((data = SecCertificateCopyData(secCert))) | |
547 | { | |
548 | httpAddCredential(*credentials, CFDataGetBytePtr(data), | |
549 | CFDataGetLength(data)); | |
550 | CFRelease(data); | |
551 | } | |
552 | } | |
553 | } | |
554 | ||
555 | CFRelease(peerCerts); | |
556 | } | |
557 | ||
558 | return (error); | |
559 | ||
560 | # elif defined(HAVE_SSPISSL) | |
561 | return (-1); | |
82f97232 MS |
562 | |
563 | # else | |
564 | return (-1); | |
7cf5915e MS |
565 | # endif /* HAVE_LIBSSL */ |
566 | } | |
567 | ||
568 | ||
ef416fc2 | 569 | /* |
1ff0402e | 570 | * '_httpCreate()' - Create an unconnected HTTP connection. |
ef416fc2 | 571 | */ |
572 | ||
1ff0402e MS |
573 | http_t * /* O - HTTP connection */ |
574 | _httpCreate( | |
575 | const char *host, /* I - Hostname */ | |
ef416fc2 | 576 | int port, /* I - Port number */ |
c8fef167 | 577 | http_addrlist_t *addrlist, /* I - Address list or NULL */ |
1106b00e MS |
578 | http_encryption_t encryption, /* I - Encryption to use */ |
579 | int family) /* I - Address family or AF_UNSPEC */ | |
ef416fc2 | 580 | { |
c8fef167 MS |
581 | http_t *http; /* New HTTP connection */ |
582 | char service[255]; /* Service name */ | |
ef416fc2 | 583 | |
584 | ||
e07d4801 | 585 | DEBUG_printf(("4_httpCreate(host=\"%s\", port=%d, encryption=%d)", |
1ff0402e | 586 | host, port, encryption)); |
ef416fc2 | 587 | |
588 | if (!host) | |
589 | return (NULL); | |
590 | ||
591 | httpInitialize(); | |
592 | ||
593 | /* | |
594 | * Lookup the host... | |
595 | */ | |
596 | ||
597 | sprintf(service, "%d", port); | |
598 | ||
c8fef167 MS |
599 | if (!addrlist) |
600 | if ((addrlist = httpAddrGetList(host, family, service)) == NULL) | |
601 | return (NULL); | |
ef416fc2 | 602 | |
603 | /* | |
604 | * Allocate memory for the structure... | |
605 | */ | |
606 | ||
91c84a35 MS |
607 | if ((http = calloc(sizeof(http_t), 1)) == NULL) |
608 | { | |
609 | httpAddrFreeList(addrlist); | |
ef416fc2 | 610 | return (NULL); |
91c84a35 | 611 | } |
ef416fc2 | 612 | |
1ff0402e MS |
613 | /* |
614 | * Initialize the HTTP data... | |
615 | */ | |
616 | ||
ef416fc2 | 617 | http->activity = time(NULL); |
1ff0402e MS |
618 | http->addrlist = addrlist; |
619 | http->blocking = 1; | |
ef416fc2 | 620 | http->fd = -1; |
f7deaa1a | 621 | #ifdef HAVE_GSSAPI |
1ff0402e MS |
622 | http->gssctx = GSS_C_NO_CONTEXT; |
623 | http->gssname = GSS_C_NO_NAME; | |
f7deaa1a | 624 | #endif /* HAVE_GSSAPI */ |
1ff0402e | 625 | http->version = HTTP_1_1; |
f7deaa1a | 626 | |
1ff0402e | 627 | strlcpy(http->hostname, host, sizeof(http->hostname)); |
ef416fc2 | 628 | |
629 | if (port == 443) /* Always use encryption for https */ | |
630 | http->encryption = HTTP_ENCRYPT_ALWAYS; | |
631 | else | |
632 | http->encryption = encryption; | |
633 | ||
85dda01c MS |
634 | http_set_wait(http); |
635 | ||
ef416fc2 | 636 | /* |
1ff0402e | 637 | * Return the new structure... |
ef416fc2 | 638 | */ |
639 | ||
1ff0402e | 640 | return (http); |
ef416fc2 | 641 | } |
642 | ||
643 | ||
85dda01c MS |
644 | /* |
645 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
646 | */ | |
647 | ||
648 | http_tls_credentials_t /* O - Internal credentials */ | |
649 | _httpCreateCredentials( | |
650 | cups_array_t *credentials) /* I - Array of credentials */ | |
651 | { | |
652 | if (!credentials) | |
653 | return (NULL); | |
654 | ||
655 | # ifdef HAVE_LIBSSL | |
656 | return (NULL); | |
657 | ||
658 | # elif defined(HAVE_GNUTLS) | |
659 | return (NULL); | |
660 | ||
661 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) | |
662 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
663 | SecCertificateRef secCert; /* Certificate reference */ | |
664 | CFDataRef data; /* Credential data reference */ | |
665 | http_credential_t *credential; /* Credential data */ | |
666 | ||
667 | ||
668 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
669 | cupsArrayCount(credentials), | |
670 | &kCFTypeArrayCallBacks)) == NULL) | |
671 | return (NULL); | |
672 | ||
673 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
674 | credential; | |
675 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
676 | { | |
677 | if ((data = CFDataCreate(kCFAllocatorDefault, credential->data, | |
678 | credential->datalen))) | |
679 | { | |
680 | if ((secCert = SecCertificateCreateWithData(kCFAllocatorDefault, data)) | |
681 | != NULL) | |
682 | { | |
683 | CFArrayAppendValue(peerCerts, secCert); | |
684 | CFRelease(secCert); | |
685 | } | |
686 | ||
687 | CFRelease(data); | |
688 | } | |
689 | } | |
690 | ||
691 | return (peerCerts); | |
692 | ||
693 | # elif defined(HAVE_SSPISSL) | |
694 | return (NULL); | |
695 | ||
696 | # else | |
697 | return (NULL); | |
698 | # endif /* HAVE_LIBSSL */ | |
699 | } | |
700 | ||
701 | ||
ef416fc2 | 702 | /* |
703 | * 'httpDelete()' - Send a DELETE request to the server. | |
704 | */ | |
705 | ||
706 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 707 | httpDelete(http_t *http, /* I - Connection to server */ |
ef416fc2 | 708 | const char *uri) /* I - URI to delete */ |
709 | { | |
710 | return (http_send(http, HTTP_DELETE, uri)); | |
711 | } | |
712 | ||
713 | ||
6d2f911b MS |
714 | /* |
715 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
716 | */ | |
717 | ||
718 | void | |
719 | _httpDisconnect(http_t *http) /* I - Connection to server */ | |
720 | { | |
721 | #ifdef HAVE_SSL | |
722 | if (http->tls) | |
723 | http_shutdown_ssl(http); | |
724 | #endif /* HAVE_SSL */ | |
725 | ||
726 | #ifdef WIN32 | |
727 | closesocket(http->fd); | |
728 | #else | |
729 | close(http->fd); | |
730 | #endif /* WIN32 */ | |
731 | ||
732 | http->fd = -1; | |
733 | } | |
734 | ||
735 | ||
ef416fc2 | 736 | /* |
737 | * 'httpEncryption()' - Set the required encryption on the link. | |
738 | */ | |
739 | ||
740 | int /* O - -1 on error, 0 on success */ | |
568fa3fa | 741 | httpEncryption(http_t *http, /* I - Connection to server */ |
ef416fc2 | 742 | http_encryption_t e) /* I - New encryption preference */ |
743 | { | |
e07d4801 | 744 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", http, e)); |
ef416fc2 | 745 | |
746 | #ifdef HAVE_SSL | |
747 | if (!http) | |
748 | return (0); | |
749 | ||
750 | http->encryption = e; | |
751 | ||
752 | if ((http->encryption == HTTP_ENCRYPT_ALWAYS && !http->tls) || | |
753 | (http->encryption == HTTP_ENCRYPT_NEVER && http->tls)) | |
754 | return (httpReconnect(http)); | |
755 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
756 | return (http_upgrade(http)); | |
757 | else | |
758 | return (0); | |
759 | #else | |
760 | if (e == HTTP_ENCRYPT_ALWAYS || e == HTTP_ENCRYPT_REQUIRED) | |
761 | return (-1); | |
762 | else | |
763 | return (0); | |
764 | #endif /* HAVE_SSL */ | |
765 | } | |
766 | ||
767 | ||
ecdc0628 | 768 | /* |
769 | * 'httpError()' - Get the last error on a connection. | |
770 | */ | |
771 | ||
772 | int /* O - Error code (errno) value */ | |
568fa3fa | 773 | httpError(http_t *http) /* I - Connection to server */ |
ecdc0628 | 774 | { |
775 | if (http) | |
776 | return (http->error); | |
777 | else | |
778 | return (EINVAL); | |
779 | } | |
780 | ||
781 | ||
ef416fc2 | 782 | /* |
783 | * 'httpFlush()' - Flush data from a HTTP connection. | |
784 | */ | |
785 | ||
786 | void | |
568fa3fa | 787 | httpFlush(http_t *http) /* I - Connection to server */ |
ef416fc2 | 788 | { |
f8b3a85b MS |
789 | char buffer[8192]; /* Junk buffer */ |
790 | int blocking; /* To block or not to block */ | |
791 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 792 | |
793 | ||
f11a948a MS |
794 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
795 | http_states[http->state])); | |
ef416fc2 | 796 | |
fa73b229 | 797 | /* |
798 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
799 | */ | |
800 | ||
801 | blocking = http->blocking; | |
802 | http->blocking = 0; | |
803 | ||
804 | /* | |
805 | * Read any data we can... | |
806 | */ | |
807 | ||
f8b3a85b | 808 | oldstate = http->state; |
a4d04587 | 809 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 810 | |
811 | /* | |
812 | * Restore blocking and reset the connection if we didn't get all of | |
813 | * the remaining data... | |
814 | */ | |
815 | ||
816 | http->blocking = blocking; | |
817 | ||
aaf19ab0 | 818 | if (http->state == oldstate && http->state != HTTP_WAITING && http->fd >= 0) |
fa73b229 | 819 | { |
820 | /* | |
821 | * Didn't get the data back, so close the current connection. | |
822 | */ | |
823 | ||
824 | http->state = HTTP_WAITING; | |
825 | ||
826 | #ifdef HAVE_SSL | |
827 | if (http->tls) | |
828 | http_shutdown_ssl(http); | |
829 | #endif /* HAVE_SSL */ | |
830 | ||
831 | #ifdef WIN32 | |
832 | closesocket(http->fd); | |
833 | #else | |
834 | close(http->fd); | |
835 | #endif /* WIN32 */ | |
836 | ||
837 | http->fd = -1; | |
838 | } | |
ef416fc2 | 839 | } |
840 | ||
841 | ||
842 | /* | |
843 | * 'httpFlushWrite()' - Flush data in write buffer. | |
844 | * | |
426c6a59 | 845 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 846 | */ |
847 | ||
848 | int /* O - Bytes written or -1 on error */ | |
568fa3fa | 849 | httpFlushWrite(http_t *http) /* I - Connection to server */ |
ef416fc2 | 850 | { |
851 | int bytes; /* Bytes written */ | |
852 | ||
853 | ||
e07d4801 | 854 | DEBUG_printf(("httpFlushWrite(http=%p)", http)); |
ef416fc2 | 855 | |
856 | if (!http || !http->wused) | |
f8b3a85b MS |
857 | { |
858 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
859 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 860 | return (0); |
f8b3a85b | 861 | } |
ef416fc2 | 862 | |
863 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
864 | bytes = http_write_chunk(http, http->wbuffer, http->wused); | |
865 | else | |
866 | bytes = http_write(http, http->wbuffer, http->wused); | |
867 | ||
868 | http->wused = 0; | |
869 | ||
22c9029b | 870 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", bytes, errno)); |
f8b3a85b | 871 | |
ef416fc2 | 872 | return (bytes); |
873 | } | |
874 | ||
875 | ||
7cf5915e MS |
876 | /* |
877 | * '_httpFreeCredentials()' - Free internal credentials. | |
878 | */ | |
879 | ||
880 | void | |
881 | _httpFreeCredentials( | |
882 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
883 | { | |
884 | if (!credentials) | |
885 | return; | |
886 | ||
887 | #ifdef HAVE_LIBSSL | |
888 | (void)credentials; | |
889 | ||
890 | #elif defined(HAVE_GNUTLS) | |
891 | (void)credentials; | |
892 | ||
893 | #elif defined(HAVE_CDSASSL) | |
894 | CFRelease(credentials); | |
895 | ||
896 | #elif defined(HAVE_SSPISSL) | |
897 | (void)credentials; | |
898 | ||
899 | #endif /* HAVE_LIBSSL */ | |
900 | } | |
901 | ||
902 | ||
903 | /* | |
904 | * 'httpFreeCredentials()' - Free an array of credentials. | |
905 | */ | |
906 | ||
907 | void | |
908 | httpFreeCredentials( | |
909 | cups_array_t *credentials) /* I - Array of credentials */ | |
910 | { | |
911 | http_credential_t *credential; /* Credential */ | |
912 | ||
913 | ||
914 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
915 | credential; | |
916 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
917 | { | |
918 | cupsArrayRemove(credentials, credential); | |
919 | free((void *)credential->data); | |
920 | free(credential); | |
921 | } | |
922 | ||
923 | cupsArrayDelete(credentials); | |
924 | } | |
925 | ||
926 | ||
ef416fc2 | 927 | /* |
928 | * 'httpGet()' - Send a GET request to the server. | |
929 | */ | |
930 | ||
931 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 932 | httpGet(http_t *http, /* I - Connection to server */ |
ef416fc2 | 933 | const char *uri) /* I - URI to get */ |
934 | { | |
935 | return (http_send(http, HTTP_GET, uri)); | |
936 | } | |
937 | ||
938 | ||
355e94dc MS |
939 | /* |
940 | * 'httpGetAuthString()' - Get the current authorization string. | |
941 | * | |
942 | * The authorization string is set by cupsDoAuthentication() and | |
943 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
944 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
945 | * value. | |
946 | * | |
426c6a59 | 947 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
948 | */ |
949 | ||
950 | char * /* O - Authorization string */ | |
568fa3fa | 951 | httpGetAuthString(http_t *http) /* I - Connection to server */ |
355e94dc MS |
952 | { |
953 | if (http) | |
954 | return (http->authstring); | |
955 | else | |
956 | return (NULL); | |
957 | } | |
958 | ||
959 | ||
ecdc0628 | 960 | /* |
961 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
962 | * | |
426c6a59 | 963 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 964 | */ |
965 | ||
966 | int /* O - 1 if blocking, 0 if non-blocking */ | |
568fa3fa | 967 | httpGetBlocking(http_t *http) /* I - Connection to server */ |
ecdc0628 | 968 | { |
969 | return (http ? http->blocking : 0); | |
970 | } | |
971 | ||
972 | ||
973 | /* | |
974 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 975 | * |
426c6a59 | 976 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ecdc0628 | 977 | */ |
978 | ||
979 | const char * /* O - Cookie data or NULL */ | |
980 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
981 | { | |
982 | return (http ? http->cookie : NULL); | |
983 | } | |
984 | ||
985 | ||
986 | /* | |
987 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
988 | * | |
426c6a59 | 989 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 990 | */ |
991 | ||
992 | int /* O - File descriptor or -1 if none */ | |
568fa3fa | 993 | httpGetFd(http_t *http) /* I - Connection to server */ |
ecdc0628 | 994 | { |
995 | return (http ? http->fd : -1); | |
996 | } | |
997 | ||
998 | ||
999 | /* | |
1000 | * 'httpGetField()' - Get a field value from a request/response. | |
1001 | */ | |
1002 | ||
1003 | const char * /* O - Field value */ | |
568fa3fa | 1004 | httpGetField(http_t *http, /* I - Connection to server */ |
ecdc0628 | 1005 | http_field_t field) /* I - Field to get */ |
1006 | { | |
1007 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1008 | return (NULL); | |
ef55b745 | 1009 | else if (field == HTTP_FIELD_AUTHORIZATION && |
f7deaa1a | 1010 | http->field_authorization) |
1011 | { | |
1012 | /* | |
1013 | * Special case for WWW-Authenticate: as its contents can be | |
1014 | * longer than HTTP_MAX_VALUE... | |
1015 | */ | |
1016 | ||
1017 | return (http->field_authorization); | |
1018 | } | |
ecdc0628 | 1019 | else |
1020 | return (http->fields[field]); | |
1021 | } | |
1022 | ||
1023 | ||
1024 | /* | |
1025 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1026 | * content-length or transfer-encoding fields. | |
1027 | * | |
1028 | * This function is deprecated and will not return lengths larger than | |
1029 | * 2^31 - 1; use httpGetLength2() instead. | |
1030 | * | |
1031 | * @deprecated@ | |
1032 | */ | |
1033 | ||
1034 | int /* O - Content length */ | |
568fa3fa | 1035 | httpGetLength(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1036 | { |
1037 | /* | |
1038 | * Get the read content length and return the 32-bit value. | |
1039 | */ | |
1040 | ||
1041 | if (http) | |
1042 | { | |
1043 | httpGetLength2(http); | |
1044 | ||
1045 | return (http->_data_remaining); | |
1046 | } | |
1047 | else | |
1048 | return (-1); | |
1049 | } | |
1050 | ||
1051 | ||
1052 | /* | |
1053 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1054 | * content-length or transfer-encoding fields. | |
1055 | * | |
1056 | * This function returns the complete content length, even for | |
1057 | * content larger than 2^31 - 1. | |
1058 | * | |
426c6a59 | 1059 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 1060 | */ |
1061 | ||
1062 | off_t /* O - Content length */ | |
568fa3fa | 1063 | httpGetLength2(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1064 | { |
f11a948a MS |
1065 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
1066 | http_states[http->state])); | |
ecdc0628 | 1067 | |
1068 | if (!http) | |
1069 | return (-1); | |
1070 | ||
88f9aafc | 1071 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1072 | { |
e07d4801 | 1073 | DEBUG_puts("4httpGetLength2: chunked request!"); |
ecdc0628 | 1074 | |
1075 | http->data_encoding = HTTP_ENCODE_CHUNKED; | |
1076 | http->data_remaining = 0; | |
1077 | } | |
1078 | else | |
1079 | { | |
1080 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1081 | ||
1082 | /* | |
1083 | * The following is a hack for HTTP servers that don't send a | |
1084 | * content-length or transfer-encoding field... | |
1085 | * | |
1086 | * If there is no content-length then the connection must close | |
1087 | * after the transfer is complete... | |
1088 | */ | |
1089 | ||
b86bc4cf | 1090 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1091 | { | |
1092 | /* | |
1093 | * Default content length is 0 for errors and 2^31-1 for other | |
1094 | * successful requests... | |
1095 | */ | |
1096 | ||
1097 | if (http->status >= HTTP_MULTIPLE_CHOICES) | |
1098 | http->data_remaining = 0; | |
1099 | else | |
1100 | http->data_remaining = 2147483647; | |
1101 | } | |
ecdc0628 | 1102 | else |
1103 | http->data_remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], | |
1104 | NULL, 10); | |
1105 | ||
e07d4801 | 1106 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
ecdc0628 | 1107 | CUPS_LLCAST http->data_remaining)); |
1108 | } | |
1109 | ||
1110 | if (http->data_remaining <= INT_MAX) | |
1111 | http->_data_remaining = (int)http->data_remaining; | |
1112 | else | |
1113 | http->_data_remaining = INT_MAX; | |
1114 | ||
1115 | return (http->data_remaining); | |
1116 | } | |
1117 | ||
1118 | ||
ef416fc2 | 1119 | /* |
1120 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1121 | */ | |
1122 | ||
1123 | char * /* O - Line or NULL */ | |
1124 | httpGets(char *line, /* I - Line to read into */ | |
1125 | int length, /* I - Max length of buffer */ | |
568fa3fa | 1126 | http_t *http) /* I - Connection to server */ |
ef416fc2 | 1127 | { |
1128 | char *lineptr, /* Pointer into line */ | |
1129 | *lineend, /* End of line */ | |
1130 | *bufptr, /* Pointer into input buffer */ | |
1131 | *bufend; /* Pointer to end of buffer */ | |
1132 | int bytes, /* Number of bytes read */ | |
1133 | eol; /* End-of-line? */ | |
1134 | ||
1135 | ||
e07d4801 | 1136 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1137 | |
1138 | if (http == NULL || line == NULL) | |
1139 | return (NULL); | |
1140 | ||
1141 | /* | |
1142 | * Read a line from the buffer... | |
1143 | */ | |
f11a948a MS |
1144 | |
1145 | http->error = 0; | |
1146 | lineptr = line; | |
1147 | lineend = line + length - 1; | |
1148 | eol = 0; | |
ef416fc2 | 1149 | |
1150 | while (lineptr < lineend) | |
1151 | { | |
1152 | /* | |
1153 | * Pre-load the buffer as needed... | |
1154 | */ | |
1155 | ||
1156 | #ifdef WIN32 | |
1157 | WSASetLastError(0); | |
1158 | #else | |
1159 | errno = 0; | |
1160 | #endif /* WIN32 */ | |
1161 | ||
1162 | while (http->used == 0) | |
1163 | { | |
1164 | /* | |
1165 | * No newline; see if there is more data to be read... | |
1166 | */ | |
1167 | ||
85dda01c | 1168 | while (!_httpWait(http, http->wait_value, 1)) |
89d46774 | 1169 | { |
f228370c MS |
1170 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1171 | continue; | |
1172 | ||
e07d4801 | 1173 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1174 | #ifdef WIN32 |
1175 | http->error = WSAETIMEDOUT; | |
1176 | #else | |
89d46774 | 1177 | http->error = ETIMEDOUT; |
b86bc4cf | 1178 | #endif /* WIN32 */ |
ef416fc2 | 1179 | return (NULL); |
89d46774 | 1180 | } |
ef416fc2 | 1181 | |
1182 | #ifdef HAVE_SSL | |
1183 | if (http->tls) | |
1184 | bytes = http_read_ssl(http, http->buffer + http->used, | |
1185 | HTTP_MAX_BUFFER - http->used); | |
1186 | else | |
1187 | #endif /* HAVE_SSL */ | |
1188 | bytes = recv(http->fd, http->buffer + http->used, | |
1189 | HTTP_MAX_BUFFER - http->used, 0); | |
1190 | ||
e07d4801 | 1191 | DEBUG_printf(("4httpGets: read %d bytes...", bytes)); |
ef416fc2 | 1192 | |
1193 | if (bytes < 0) | |
1194 | { | |
1195 | /* | |
1196 | * Nope, can't get a line this time... | |
1197 | */ | |
1198 | ||
1199 | #ifdef WIN32 | |
cc754834 MS |
1200 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1201 | ||
10d09e33 | 1202 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1203 | continue; |
10d09e33 MS |
1204 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1205 | { | |
1206 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1207 | continue; | |
1208 | ||
1209 | http->error = WSAGetLastError(); | |
1210 | } | |
cc754834 | 1211 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1212 | { |
1213 | http->error = WSAGetLastError(); | |
1214 | continue; | |
1215 | } | |
1216 | ||
ef416fc2 | 1217 | #else |
e07d4801 | 1218 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1219 | |
10d09e33 | 1220 | if (errno == EINTR) |
ef416fc2 | 1221 | continue; |
10d09e33 MS |
1222 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1223 | { | |
1224 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1225 | continue; | |
1226 | else if (!http->timeout_cb && errno == EAGAIN) | |
1227 | continue; | |
1228 | ||
1229 | http->error = errno; | |
1230 | } | |
ef416fc2 | 1231 | else if (errno != http->error) |
1232 | { | |
1233 | http->error = errno; | |
1234 | continue; | |
1235 | } | |
1236 | #endif /* WIN32 */ | |
1237 | ||
1238 | return (NULL); | |
1239 | } | |
1240 | else if (bytes == 0) | |
1241 | { | |
1242 | http->error = EPIPE; | |
1243 | ||
1244 | return (NULL); | |
1245 | } | |
1246 | ||
1247 | /* | |
1248 | * Yup, update the amount used... | |
1249 | */ | |
1250 | ||
1251 | http->used += bytes; | |
1252 | } | |
1253 | ||
1254 | /* | |
1255 | * Now copy as much of the current line as possible... | |
1256 | */ | |
1257 | ||
1258 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1259 | lineptr < lineend && bufptr < bufend;) | |
1260 | { | |
1261 | if (*bufptr == 0x0a) | |
1262 | { | |
1263 | eol = 1; | |
1264 | bufptr ++; | |
1265 | break; | |
1266 | } | |
1267 | else if (*bufptr == 0x0d) | |
1268 | bufptr ++; | |
1269 | else | |
1270 | *lineptr++ = *bufptr++; | |
1271 | } | |
1272 | ||
b86bc4cf | 1273 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1274 | if (http->used > 0) |
1275 | memmove(http->buffer, bufptr, http->used); | |
1276 | ||
1277 | if (eol) | |
1278 | { | |
1279 | /* | |
1280 | * End of line... | |
1281 | */ | |
1282 | ||
1283 | http->activity = time(NULL); | |
1284 | ||
1285 | *lineptr = '\0'; | |
ef55b745 | 1286 | |
e07d4801 | 1287 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1288 | |
1289 | return (line); | |
1290 | } | |
1291 | } | |
1292 | ||
e07d4801 | 1293 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1294 | |
1295 | return (NULL); | |
1296 | } | |
1297 | ||
1298 | ||
a2326b5b MS |
1299 | /* |
1300 | * 'httpGetState()' - Get the current state of the HTTP request. | |
1301 | */ | |
1302 | ||
1303 | http_state_t /* O - HTTP state */ | |
1304 | httpGetState(http_t *http) /* I - Connection to server */ | |
1305 | { | |
1306 | return (http ? http->state : HTTP_ERROR); | |
1307 | } | |
1308 | ||
1309 | ||
1310 | /* | |
1311 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1312 | * | |
1313 | * @since CUPS 1.2/Mac OS X 10.5@ | |
1314 | */ | |
1315 | ||
1316 | http_status_t /* O - HTTP status */ | |
1317 | httpGetStatus(http_t *http) /* I - Connection to server */ | |
1318 | { | |
1319 | return (http ? http->status : HTTP_ERROR); | |
1320 | } | |
1321 | ||
1322 | ||
1323 | /* | |
1324 | * 'httpGetSubField()' - Get a sub-field value. | |
1325 | * | |
1326 | * @deprecated@ | |
1327 | */ | |
1328 | ||
1329 | char * /* O - Value or NULL */ | |
1330 | httpGetSubField(http_t *http, /* I - Connection to server */ | |
1331 | http_field_t field, /* I - Field index */ | |
1332 | const char *name, /* I - Name of sub-field */ | |
1333 | char *value) /* O - Value string */ | |
1334 | { | |
1335 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1336 | } | |
1337 | ||
1338 | ||
1339 | /* | |
1340 | * 'httpGetSubField2()' - Get a sub-field value. | |
1341 | * | |
1342 | * @since CUPS 1.2/Mac OS X 10.5@ | |
1343 | */ | |
1344 | ||
1345 | char * /* O - Value or NULL */ | |
1346 | httpGetSubField2(http_t *http, /* I - Connection to server */ | |
1347 | http_field_t field, /* I - Field index */ | |
1348 | const char *name, /* I - Name of sub-field */ | |
1349 | char *value, /* O - Value string */ | |
1350 | int valuelen) /* I - Size of value buffer */ | |
1351 | { | |
1352 | const char *fptr; /* Pointer into field */ | |
1353 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1354 | *ptr, /* Pointer into string buffer */ | |
1355 | *end; /* End of value buffer */ | |
1356 | ||
1357 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " | |
1358 | "valuelen=%d)", http, field, name, value, valuelen)); | |
1359 | ||
1360 | if (!http || !name || !value || valuelen < 2 || | |
1361 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
1362 | return (NULL); | |
1363 | ||
1364 | end = value + valuelen - 1; | |
1365 | ||
1366 | for (fptr = http->fields[field]; *fptr;) | |
1367 | { | |
1368 | /* | |
1369 | * Skip leading whitespace... | |
1370 | */ | |
1371 | ||
1372 | while (_cups_isspace(*fptr)) | |
1373 | fptr ++; | |
1374 | ||
1375 | if (*fptr == ',') | |
1376 | { | |
1377 | fptr ++; | |
1378 | continue; | |
1379 | } | |
1380 | ||
1381 | /* | |
1382 | * Get the sub-field name... | |
1383 | */ | |
1384 | ||
1385 | for (ptr = temp; | |
1386 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && | |
1387 | ptr < (temp + sizeof(temp) - 1); | |
1388 | *ptr++ = *fptr++); | |
1389 | ||
1390 | *ptr = '\0'; | |
1391 | ||
1392 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); | |
1393 | ||
1394 | /* | |
1395 | * Skip trailing chars up to the '='... | |
1396 | */ | |
1397 | ||
1398 | while (_cups_isspace(*fptr)) | |
1399 | fptr ++; | |
1400 | ||
1401 | if (!*fptr) | |
1402 | break; | |
1403 | ||
1404 | if (*fptr != '=') | |
1405 | continue; | |
1406 | ||
1407 | /* | |
1408 | * Skip = and leading whitespace... | |
1409 | */ | |
1410 | ||
1411 | fptr ++; | |
1412 | ||
1413 | while (_cups_isspace(*fptr)) | |
1414 | fptr ++; | |
1415 | ||
1416 | if (*fptr == '\"') | |
1417 | { | |
1418 | /* | |
1419 | * Read quoted string... | |
1420 | */ | |
1421 | ||
1422 | for (ptr = value, fptr ++; | |
1423 | *fptr && *fptr != '\"' && ptr < end; | |
1424 | *ptr++ = *fptr++); | |
1425 | ||
1426 | *ptr = '\0'; | |
1427 | ||
1428 | while (*fptr && *fptr != '\"') | |
1429 | fptr ++; | |
1430 | ||
1431 | if (*fptr) | |
1432 | fptr ++; | |
1433 | } | |
1434 | else | |
1435 | { | |
1436 | /* | |
1437 | * Read unquoted string... | |
1438 | */ | |
1439 | ||
1440 | for (ptr = value; | |
1441 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; | |
1442 | *ptr++ = *fptr++); | |
1443 | ||
1444 | *ptr = '\0'; | |
1445 | ||
1446 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') | |
1447 | fptr ++; | |
1448 | } | |
1449 | ||
1450 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); | |
1451 | ||
1452 | /* | |
1453 | * See if this is the one... | |
1454 | */ | |
1455 | ||
1456 | if (!strcmp(name, temp)) | |
1457 | { | |
1458 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
1459 | return (value); | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | value[0] = '\0'; | |
1464 | ||
1465 | DEBUG_puts("3httpGetSubField2: Returning NULL"); | |
1466 | ||
1467 | return (NULL); | |
1468 | } | |
1469 | ||
1470 | ||
1471 | /* | |
1472 | * 'httpGetVersion()' - Get the HTTP version at the other end. | |
1473 | */ | |
1474 | ||
1475 | http_version_t /* O - Version number */ | |
1476 | httpGetVersion(http_t *http) /* I - Connection to server */ | |
1477 | { | |
1478 | return (http ? http->version : HTTP_1_0); | |
1479 | } | |
1480 | ||
1481 | ||
ef416fc2 | 1482 | /* |
1483 | * 'httpHead()' - Send a HEAD request to the server. | |
1484 | */ | |
1485 | ||
1486 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1487 | httpHead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1488 | const char *uri) /* I - URI for head */ |
1489 | { | |
e07d4801 | 1490 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
ef416fc2 | 1491 | return (http_send(http, HTTP_HEAD, uri)); |
1492 | } | |
1493 | ||
1494 | ||
1495 | /* | |
1496 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1497 | * default HTTP proxy (if any). | |
1498 | */ | |
1499 | ||
1500 | void | |
1501 | httpInitialize(void) | |
1502 | { | |
6d2f911b MS |
1503 | static int initialized = 0; /* Have we been called before? */ |
1504 | #ifdef WIN32 | |
1505 | WSADATA winsockdata; /* WinSock data */ | |
1506 | #endif /* WIN32 */ | |
ef416fc2 | 1507 | #ifdef HAVE_LIBSSL |
6d2f911b MS |
1508 | int i; /* Looping var */ |
1509 | unsigned char data[1024]; /* Seed data */ | |
ef416fc2 | 1510 | #endif /* HAVE_LIBSSL */ |
1511 | ||
ef416fc2 | 1512 | |
6d2f911b MS |
1513 | _cupsGlobalLock(); |
1514 | if (initialized) | |
1515 | { | |
1516 | _cupsGlobalUnlock(); | |
1517 | return; | |
1518 | } | |
1519 | ||
1520 | #ifdef WIN32 | |
c7017ecc | 1521 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1522 | |
fa73b229 | 1523 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1524 | /* |
1525 | * Ignore SIGPIPE signals... | |
1526 | */ | |
1527 | ||
fa73b229 | 1528 | # ifdef HAVE_SIGSET |
1529 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1530 | |
fa73b229 | 1531 | # elif defined(HAVE_SIGACTION) |
1532 | struct sigaction action; /* POSIX sigaction data */ | |
1533 | ||
1534 | ||
ef416fc2 | 1535 | memset(&action, 0, sizeof(action)); |
1536 | action.sa_handler = SIG_IGN; | |
1537 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1538 | |
fa73b229 | 1539 | # else |
ef416fc2 | 1540 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1541 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1542 | #endif /* WIN32 */ |
1543 | ||
1544 | #ifdef HAVE_GNUTLS | |
6d2f911b MS |
1545 | /* |
1546 | * Initialize GNU TLS... | |
1547 | */ | |
1548 | ||
ef416fc2 | 1549 | gnutls_global_init(); |
ef416fc2 | 1550 | |
6d2f911b MS |
1551 | #elif defined(HAVE_LIBSSL) |
1552 | /* | |
1553 | * Initialize OpenSSL... | |
1554 | */ | |
1555 | ||
ef416fc2 | 1556 | SSL_load_error_strings(); |
1557 | SSL_library_init(); | |
1558 | ||
1559 | /* | |
1560 | * Using the current time is a dubious random seed, but on some systems | |
1561 | * it is the best we can do (on others, this seed isn't even used...) | |
1562 | */ | |
1563 | ||
6d2f911b | 1564 | CUPS_SRAND(time(NULL)); |
ef416fc2 | 1565 | |
1566 | for (i = 0; i < sizeof(data); i ++) | |
6d2f911b | 1567 | data[i] = CUPS_RAND(); |
ef416fc2 | 1568 | |
dfd5680b | 1569 | RAND_seed(data, sizeof(data)); |
6d2f911b MS |
1570 | #endif /* HAVE_GNUTLS */ |
1571 | ||
1572 | initialized = 1; | |
1573 | _cupsGlobalUnlock(); | |
ef416fc2 | 1574 | } |
1575 | ||
1576 | ||
1577 | /* | |
1578 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1579 | */ | |
1580 | ||
1581 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1582 | httpOptions(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1583 | const char *uri) /* I - URI for options */ |
1584 | { | |
1585 | return (http_send(http, HTTP_OPTIONS, uri)); | |
1586 | } | |
1587 | ||
1588 | ||
6d2f911b MS |
1589 | /* |
1590 | * '_httpPeek()' - Peek at data from a HTTP connection. | |
1591 | * | |
1592 | * This function copies available data from the given HTTP connection, reading | |
1593 | * a buffer as needed. The data is still available for reading using | |
1594 | * @link httpRead@ or @link httpRead2@. | |
1595 | * | |
1596 | * For non-blocking connections the usual timeouts apply. | |
1597 | */ | |
1598 | ||
1599 | ssize_t /* O - Number of bytes copied */ | |
1600 | _httpPeek(http_t *http, /* I - Connection to server */ | |
1601 | char *buffer, /* I - Buffer for data */ | |
1602 | size_t length) /* I - Maximum number of bytes */ | |
1603 | { | |
1604 | ssize_t bytes; /* Bytes read */ | |
1605 | char len[32]; /* Length string */ | |
1606 | ||
1607 | ||
1608 | DEBUG_printf(("_httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
1609 | http, buffer, CUPS_LLCAST length)); | |
1610 | ||
1611 | if (http == NULL || buffer == NULL) | |
1612 | return (-1); | |
1613 | ||
1614 | http->activity = time(NULL); | |
1615 | http->error = 0; | |
1616 | ||
1617 | if (length <= 0) | |
1618 | return (0); | |
1619 | ||
1620 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1621 | http->data_remaining <= 0) | |
1622 | { | |
1623 | DEBUG_puts("2_httpPeek: Getting chunk length..."); | |
1624 | ||
1625 | if (httpGets(len, sizeof(len), http) == NULL) | |
1626 | { | |
1627 | DEBUG_puts("1_httpPeek: Could not get length!"); | |
1628 | return (0); | |
1629 | } | |
1630 | ||
1631 | http->data_remaining = strtoll(len, NULL, 16); | |
1632 | if (http->data_remaining < 0) | |
1633 | { | |
1634 | DEBUG_puts("1_httpPeek: Negative chunk length!"); | |
1635 | return (0); | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | DEBUG_printf(("2_httpPeek: data_remaining=" CUPS_LLFMT, | |
1640 | CUPS_LLCAST http->data_remaining)); | |
1641 | ||
1642 | if (http->data_remaining <= 0) | |
1643 | { | |
1644 | /* | |
1645 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1646 | * data, go idle... | |
1647 | */ | |
1648 | ||
1649 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1650 | httpGets(len, sizeof(len), http); | |
1651 | ||
1652 | if (http->state == HTTP_POST_RECV) | |
1653 | http->state ++; | |
1654 | else | |
1655 | http->state = HTTP_WAITING; | |
1656 | ||
1657 | /* | |
1658 | * Prevent future reads for this request... | |
1659 | */ | |
1660 | ||
1661 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1662 | ||
1663 | return (0); | |
1664 | } | |
1665 | else if (length > (size_t)http->data_remaining) | |
1666 | length = (size_t)http->data_remaining; | |
1667 | ||
1668 | if (http->used == 0) | |
1669 | { | |
1670 | /* | |
1671 | * Buffer small reads for better performance... | |
1672 | */ | |
1673 | ||
f228370c MS |
1674 | if (!http->blocking) |
1675 | { | |
85dda01c | 1676 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1677 | { |
1678 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1679 | continue; | |
1680 | ||
1681 | return (0); | |
1682 | } | |
1683 | } | |
6d2f911b MS |
1684 | |
1685 | if (http->data_remaining > sizeof(http->buffer)) | |
1686 | bytes = sizeof(http->buffer); | |
1687 | else | |
1688 | bytes = http->data_remaining; | |
1689 | ||
1690 | #ifdef HAVE_SSL | |
1691 | if (http->tls) | |
1692 | bytes = http_read_ssl(http, http->buffer, bytes); | |
1693 | else | |
1694 | #endif /* HAVE_SSL */ | |
1695 | { | |
1696 | DEBUG_printf(("2_httpPeek: reading %d bytes from socket into buffer...", | |
1697 | (int)bytes)); | |
1698 | ||
1699 | bytes = recv(http->fd, http->buffer, bytes, 0); | |
1700 | ||
1701 | DEBUG_printf(("2_httpPeek: read %d bytes from socket into buffer...", | |
1702 | (int)bytes)); | |
1703 | } | |
1704 | ||
1705 | if (bytes > 0) | |
1706 | http->used = bytes; | |
1707 | else if (bytes < 0) | |
1708 | { | |
1709 | #ifdef WIN32 | |
cc754834 MS |
1710 | if (WSAGetLastError() != WSAEINTR && WSAGetLastError() != WSAEWOULDBLOCK) |
1711 | { | |
1712 | http->error = WSAGetLastError(); | |
1713 | return (-1); | |
1714 | } | |
6d2f911b MS |
1715 | #else |
1716 | if (errno != EINTR && errno != EAGAIN) | |
1717 | { | |
1718 | http->error = errno; | |
1719 | return (-1); | |
1720 | } | |
1721 | #endif /* WIN32 */ | |
1722 | } | |
1723 | else | |
1724 | { | |
1725 | http->error = EPIPE; | |
1726 | return (0); | |
1727 | } | |
1728 | } | |
1729 | ||
1730 | if (http->used > 0) | |
1731 | { | |
1732 | if (length > (size_t)http->used) | |
1733 | length = (size_t)http->used; | |
1734 | ||
1735 | bytes = (ssize_t)length; | |
1736 | ||
1737 | DEBUG_printf(("2_httpPeek: grabbing %d bytes from input buffer...", | |
1738 | (int)bytes)); | |
1739 | ||
1740 | memcpy(buffer, http->buffer, length); | |
1741 | } | |
1742 | else | |
1743 | bytes = 0; | |
1744 | ||
1745 | if (bytes < 0) | |
1746 | { | |
1747 | #ifdef WIN32 | |
cc754834 MS |
1748 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1749 | bytes = 0; | |
1750 | else | |
1751 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1752 | #else |
1753 | if (errno == EINTR || errno == EAGAIN) | |
1754 | bytes = 0; | |
1755 | else | |
1756 | http->error = errno; | |
1757 | #endif /* WIN32 */ | |
1758 | } | |
1759 | else if (bytes == 0) | |
1760 | { | |
1761 | http->error = EPIPE; | |
1762 | return (0); | |
1763 | } | |
1764 | ||
1765 | #ifdef DEBUG | |
1766 | http_debug_hex("_httpPeek", buffer, (int)bytes); | |
1767 | #endif /* DEBUG */ | |
1768 | ||
1769 | return (bytes); | |
1770 | } | |
1771 | ||
1772 | ||
ef416fc2 | 1773 | /* |
1774 | * 'httpPost()' - Send a POST request to the server. | |
1775 | */ | |
1776 | ||
1777 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1778 | httpPost(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1779 | const char *uri) /* I - URI for post */ |
1780 | { | |
1781 | return (http_send(http, HTTP_POST, uri)); | |
1782 | } | |
1783 | ||
1784 | ||
1785 | /* | |
1786 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1787 | * |
1788 | * @private@ | |
ef416fc2 | 1789 | */ |
1790 | ||
1791 | int /* O - Number of bytes written */ | |
568fa3fa | 1792 | httpPrintf(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1793 | const char *format, /* I - printf-style format string */ |
1794 | ...) /* I - Additional args as needed */ | |
1795 | { | |
1796 | int bytes; /* Number of bytes to write */ | |
1797 | char buf[16384]; /* Buffer for formatted string */ | |
1798 | va_list ap; /* Variable argument pointer */ | |
1799 | ||
1800 | ||
e07d4801 | 1801 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1802 | |
1803 | va_start(ap, format); | |
1804 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1805 | va_end(ap); | |
1806 | ||
e07d4801 | 1807 | DEBUG_printf(("3httpPrintf: %s", buf)); |
ef416fc2 | 1808 | |
d09495fa | 1809 | if (http->data_encoding == HTTP_ENCODE_FIELDS) |
1810 | return (httpWrite2(http, buf, bytes)); | |
1811 | else | |
ef416fc2 | 1812 | { |
d09495fa | 1813 | if (http->wused) |
1814 | { | |
e07d4801 | 1815 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1816 | |
d09495fa | 1817 | if (httpFlushWrite(http) < 0) |
1818 | return (-1); | |
1819 | } | |
ef416fc2 | 1820 | |
d09495fa | 1821 | return (http_write(http, buf, bytes)); |
1822 | } | |
ef416fc2 | 1823 | } |
1824 | ||
1825 | ||
1826 | /* | |
1827 | * 'httpPut()' - Send a PUT request to the server. | |
1828 | */ | |
1829 | ||
1830 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1831 | httpPut(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1832 | const char *uri) /* I - URI to put */ |
1833 | { | |
e07d4801 | 1834 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
ef416fc2 | 1835 | return (http_send(http, HTTP_PUT, uri)); |
1836 | } | |
1837 | ||
1838 | ||
1839 | /* | |
1840 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1841 | * |
1842 | * This function is deprecated. Use the httpRead2() function which can | |
1843 | * read more than 2GB of data. | |
1844 | * | |
1845 | * @deprecated@ | |
ef416fc2 | 1846 | */ |
1847 | ||
1848 | int /* O - Number of bytes read */ | |
568fa3fa | 1849 | httpRead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1850 | char *buffer, /* I - Buffer for data */ |
1851 | int length) /* I - Maximum number of bytes */ | |
1852 | { | |
a4d04587 | 1853 | return ((int)httpRead2(http, buffer, length)); |
1854 | } | |
1855 | ||
1856 | ||
1857 | /* | |
1858 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1859 | * |
426c6a59 | 1860 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 1861 | */ |
1862 | ||
1863 | ssize_t /* O - Number of bytes read */ | |
568fa3fa | 1864 | httpRead2(http_t *http, /* I - Connection to server */ |
a4d04587 | 1865 | char *buffer, /* I - Buffer for data */ |
1866 | size_t length) /* I - Maximum number of bytes */ | |
1867 | { | |
1868 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1869 | char len[32]; /* Length string */ |
1870 | ||
1871 | ||
e07d4801 | 1872 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
a603edef | 1873 | http, buffer, CUPS_LLCAST length)); |
ef416fc2 | 1874 | |
1875 | if (http == NULL || buffer == NULL) | |
1876 | return (-1); | |
1877 | ||
1878 | http->activity = time(NULL); | |
f11a948a | 1879 | http->error = 0; |
ef416fc2 | 1880 | |
1881 | if (length <= 0) | |
1882 | return (0); | |
1883 | ||
1884 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1885 | http->data_remaining <= 0) | |
1886 | { | |
e07d4801 | 1887 | DEBUG_puts("2httpRead2: Getting chunk length..."); |
ef416fc2 | 1888 | |
1889 | if (httpGets(len, sizeof(len), http) == NULL) | |
1890 | { | |
e07d4801 | 1891 | DEBUG_puts("1httpRead2: Could not get length!"); |
ef416fc2 | 1892 | return (0); |
1893 | } | |
1894 | ||
1895 | http->data_remaining = strtoll(len, NULL, 16); | |
1896 | if (http->data_remaining < 0) | |
1897 | { | |
e07d4801 | 1898 | DEBUG_puts("1httpRead2: Negative chunk length!"); |
ef416fc2 | 1899 | return (0); |
1900 | } | |
1901 | } | |
1902 | ||
e07d4801 | 1903 | DEBUG_printf(("2httpRead2: data_remaining=" CUPS_LLFMT, |
ef416fc2 | 1904 | CUPS_LLCAST http->data_remaining)); |
1905 | ||
1906 | if (http->data_remaining <= 0) | |
1907 | { | |
1908 | /* | |
1909 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1910 | * data, go idle... | |
1911 | */ | |
1912 | ||
1913 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1914 | httpGets(len, sizeof(len), http); | |
1915 | ||
1916 | if (http->state == HTTP_POST_RECV) | |
1917 | http->state ++; | |
1918 | else | |
1919 | http->state = HTTP_WAITING; | |
1920 | ||
1921 | /* | |
1922 | * Prevent future reads for this request... | |
1923 | */ | |
1924 | ||
1925 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1926 | ||
1927 | return (0); | |
1928 | } | |
b86bc4cf | 1929 | else if (length > (size_t)http->data_remaining) |
1930 | length = (size_t)http->data_remaining; | |
ef416fc2 | 1931 | |
1932 | if (http->used == 0 && length <= 256) | |
1933 | { | |
1934 | /* | |
1935 | * Buffer small reads for better performance... | |
1936 | */ | |
1937 | ||
83e08001 MS |
1938 | ssize_t buflen; /* Length of read for buffer */ |
1939 | ||
f228370c MS |
1940 | if (!http->blocking) |
1941 | { | |
85dda01c | 1942 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
1943 | { |
1944 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1945 | continue; | |
1946 | ||
1947 | return (0); | |
1948 | } | |
1949 | } | |
ef416fc2 | 1950 | |
1951 | if (http->data_remaining > sizeof(http->buffer)) | |
83e08001 | 1952 | buflen = sizeof(http->buffer); |
ef416fc2 | 1953 | else |
83e08001 | 1954 | buflen = http->data_remaining; |
ef416fc2 | 1955 | |
83e08001 MS |
1956 | DEBUG_printf(("2httpRead2: Reading %d bytes into buffer.", (int)buflen)); |
1957 | ||
1958 | do | |
1959 | { | |
ef416fc2 | 1960 | #ifdef HAVE_SSL |
83e08001 MS |
1961 | if (http->tls) |
1962 | bytes = http_read_ssl(http, http->buffer, buflen); | |
1963 | else | |
ef416fc2 | 1964 | #endif /* HAVE_SSL */ |
83e08001 | 1965 | bytes = recv(http->fd, http->buffer, buflen, 0); |
ef416fc2 | 1966 | |
83e08001 | 1967 | if (bytes < 0) |
10d09e33 | 1968 | { |
83e08001 MS |
1969 | #ifdef WIN32 |
1970 | if (WSAGetLastError() != WSAEINTR) | |
10d09e33 | 1971 | { |
83e08001 | 1972 | http->error = WSAGetLastError(); |
10d09e33 MS |
1973 | return (-1); |
1974 | } | |
83e08001 MS |
1975 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1976 | { | |
1977 | if (!http->timeout_cb || | |
1978 | !(*http->timeout_cb)(http, http->timeout_data)) | |
1979 | { | |
1980 | http->error = WSAEWOULDBLOCK; | |
1981 | return (-1); | |
1982 | } | |
1983 | } | |
ef416fc2 | 1984 | #else |
83e08001 | 1985 | if (errno == EWOULDBLOCK || errno == EAGAIN) |
10d09e33 | 1986 | { |
83e08001 MS |
1987 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) |
1988 | { | |
1989 | http->error = errno; | |
1990 | return (-1); | |
1991 | } | |
1992 | else if (!http->timeout_cb && errno != EAGAIN) | |
1993 | { | |
1994 | http->error = errno; | |
1995 | return (-1); | |
1996 | } | |
10d09e33 | 1997 | } |
83e08001 | 1998 | else if (errno != EINTR) |
10d09e33 MS |
1999 | { |
2000 | http->error = errno; | |
2001 | return (-1); | |
2002 | } | |
ef416fc2 | 2003 | #endif /* WIN32 */ |
83e08001 | 2004 | } |
ef416fc2 | 2005 | } |
83e08001 MS |
2006 | while (bytes < 0); |
2007 | ||
2008 | DEBUG_printf(("2httpRead2: Read %d bytes into buffer.", (int)bytes)); | |
2009 | ||
2010 | http->used = bytes; | |
ef416fc2 | 2011 | } |
2012 | ||
2013 | if (http->used > 0) | |
2014 | { | |
b86bc4cf | 2015 | if (length > (size_t)http->used) |
2016 | length = (size_t)http->used; | |
ef416fc2 | 2017 | |
b86bc4cf | 2018 | bytes = (ssize_t)length; |
ef416fc2 | 2019 | |
e07d4801 | 2020 | DEBUG_printf(("2httpRead2: grabbing %d bytes from input buffer...", |
a603edef | 2021 | (int)bytes)); |
ef416fc2 | 2022 | |
2023 | memcpy(buffer, http->buffer, length); | |
b86bc4cf | 2024 | http->used -= (int)length; |
ef416fc2 | 2025 | |
2026 | if (http->used > 0) | |
2027 | memmove(http->buffer, http->buffer + length, http->used); | |
2028 | } | |
2029 | #ifdef HAVE_SSL | |
2030 | else if (http->tls) | |
2031 | { | |
f228370c MS |
2032 | if (!http->blocking) |
2033 | { | |
85dda01c | 2034 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
2035 | { |
2036 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2037 | continue; | |
2038 | ||
2039 | return (0); | |
2040 | } | |
2041 | } | |
ef416fc2 | 2042 | |
83e08001 MS |
2043 | while ((bytes = (ssize_t)http_read_ssl(http, buffer, (int)length)) < 0) |
2044 | { | |
2045 | #ifdef WIN32 | |
2046 | if (WSAGetLastError() == WSAEWOULDBLOCK) | |
2047 | { | |
2048 | if (!http->timeout_cb || !(*http->timeout_cb)(http, http->timeout_data)) | |
2049 | break; | |
2050 | } | |
2051 | else if (WSAGetLastError() != WSAEINTR) | |
2052 | break; | |
2053 | #else | |
2054 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
2055 | { | |
2056 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
2057 | break; | |
2058 | else if (!http->timeout_cb && errno != EAGAIN) | |
2059 | break; | |
2060 | } | |
2061 | else if (errno != EINTR) | |
2062 | break; | |
2063 | #endif /* WIN32 */ | |
2064 | } | |
ef416fc2 | 2065 | } |
2066 | #endif /* HAVE_SSL */ | |
2067 | else | |
2068 | { | |
f228370c MS |
2069 | if (!http->blocking) |
2070 | { | |
85dda01c | 2071 | while (!httpWait(http, http->wait_value)) |
f228370c MS |
2072 | { |
2073 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2074 | continue; | |
2075 | ||
2076 | return (0); | |
2077 | } | |
2078 | } | |
ef416fc2 | 2079 | |
e07d4801 | 2080 | DEBUG_printf(("2httpRead2: reading " CUPS_LLFMT " bytes from socket...", |
a603edef | 2081 | CUPS_LLCAST length)); |
ef416fc2 | 2082 | |
b86bc4cf | 2083 | #ifdef WIN32 |
10d09e33 MS |
2084 | while ((bytes = (ssize_t)recv(http->fd, buffer, (int)length, 0)) < 0) |
2085 | { | |
2086 | if (WSAGetLastError() == WSAEWOULDBLOCK) | |
2087 | { | |
2088 | if (!http->timeout_cb || !(*http->timeout_cb)(http, http->timeout_data)) | |
2089 | break; | |
2090 | } | |
2091 | else if (WSAGetLastError() != WSAEINTR) | |
cc754834 | 2092 | break; |
10d09e33 | 2093 | } |
b86bc4cf | 2094 | #else |
ef416fc2 | 2095 | while ((bytes = recv(http->fd, buffer, length, 0)) < 0) |
10d09e33 MS |
2096 | { |
2097 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
2098 | { | |
2099 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
2100 | break; | |
2101 | else if (!http->timeout_cb && errno != EAGAIN) | |
2102 | break; | |
2103 | } | |
2104 | else if (errno != EINTR) | |
ef416fc2 | 2105 | break; |
10d09e33 | 2106 | } |
b86bc4cf | 2107 | #endif /* WIN32 */ |
ef416fc2 | 2108 | |
e07d4801 | 2109 | DEBUG_printf(("2httpRead2: read " CUPS_LLFMT " bytes from socket...", |
a603edef | 2110 | CUPS_LLCAST bytes)); |
ef416fc2 | 2111 | } |
2112 | ||
2113 | if (bytes > 0) | |
2114 | { | |
2115 | http->data_remaining -= bytes; | |
2116 | ||
2117 | if (http->data_remaining <= INT_MAX) | |
2118 | http->_data_remaining = (int)http->data_remaining; | |
2119 | else | |
2120 | http->_data_remaining = INT_MAX; | |
2121 | } | |
2122 | else if (bytes < 0) | |
2123 | { | |
2124 | #ifdef WIN32 | |
10d09e33 | 2125 | if (WSAGetLastError() == WSAEINTR) |
cc754834 MS |
2126 | bytes = 0; |
2127 | else | |
2128 | http->error = WSAGetLastError(); | |
ef416fc2 | 2129 | #else |
10d09e33 | 2130 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) |
ef416fc2 | 2131 | bytes = 0; |
2132 | else | |
2133 | http->error = errno; | |
2134 | #endif /* WIN32 */ | |
2135 | } | |
2136 | else | |
2137 | { | |
2138 | http->error = EPIPE; | |
2139 | return (0); | |
2140 | } | |
2141 | ||
2142 | if (http->data_remaining == 0) | |
2143 | { | |
2144 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
2145 | httpGets(len, sizeof(len), http); | |
2146 | ||
2147 | if (http->data_encoding != HTTP_ENCODE_CHUNKED) | |
2148 | { | |
2149 | if (http->state == HTTP_POST_RECV) | |
2150 | http->state ++; | |
2151 | else | |
2152 | http->state = HTTP_WAITING; | |
2153 | } | |
2154 | } | |
2155 | ||
2156 | #ifdef DEBUG | |
ae71f5de | 2157 | http_debug_hex("httpRead2", buffer, (int)bytes); |
ef416fc2 | 2158 | #endif /* DEBUG */ |
2159 | ||
2160 | return (bytes); | |
2161 | } | |
2162 | ||
2163 | ||
2164 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
2165 | /* | |
411affcf | 2166 | * '_httpReadCDSA()' - Read function for the CDSA library. |
ef416fc2 | 2167 | */ |
2168 | ||
2169 | OSStatus /* O - -1 on error, 0 on success */ | |
2170 | _httpReadCDSA( | |
2171 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2172 | void *data, /* I - Data buffer */ | |
2173 | size_t *dataLength) /* IO - Number of bytes */ | |
2174 | { | |
411affcf | 2175 | OSStatus result; /* Return value */ |
2176 | ssize_t bytes; /* Number of bytes read */ | |
2177 | http_t *http; /* HTTP connection */ | |
2178 | ||
2179 | ||
2180 | http = (http_t *)connection; | |
e53920b9 | 2181 | |
411affcf | 2182 | if (!http->blocking) |
2183 | { | |
2184 | /* | |
2185 | * Make sure we have data before we read... | |
2186 | */ | |
e53920b9 | 2187 | |
85dda01c | 2188 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 2189 | { |
f228370c MS |
2190 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2191 | continue; | |
2192 | ||
411affcf | 2193 | http->error = ETIMEDOUT; |
2194 | return (-1); | |
2195 | } | |
2196 | } | |
ef416fc2 | 2197 | |
b423cd4c | 2198 | do |
411affcf | 2199 | { |
2200 | bytes = recv(http->fd, data, *dataLength, 0); | |
2201 | } | |
e07d4801 | 2202 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 2203 | |
b423cd4c | 2204 | if (bytes == *dataLength) |
411affcf | 2205 | { |
b423cd4c | 2206 | result = 0; |
411affcf | 2207 | } |
b423cd4c | 2208 | else if (bytes > 0) |
2209 | { | |
2210 | *dataLength = bytes; | |
2211 | result = errSSLWouldBlock; | |
2212 | } | |
2213 | else | |
2214 | { | |
2215 | *dataLength = 0; | |
fa73b229 | 2216 | |
2217 | if (bytes == 0) | |
ed486911 | 2218 | result = errSSLClosedGraceful; |
b423cd4c | 2219 | else if (errno == EAGAIN) |
2220 | result = errSSLWouldBlock; | |
b423cd4c | 2221 | else |
ed486911 | 2222 | result = errSSLClosedAbort; |
ef416fc2 | 2223 | } |
b423cd4c | 2224 | |
411affcf | 2225 | return (result); |
ef416fc2 | 2226 | } |
2227 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
2228 | ||
2229 | ||
411affcf | 2230 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
2231 | /* | |
2232 | * '_httpReadGNUTLS()' - Read function for the GNU TLS library. | |
2233 | */ | |
2234 | ||
2235 | ssize_t /* O - Number of bytes read or -1 on error */ | |
2236 | _httpReadGNUTLS( | |
568fa3fa | 2237 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 2238 | void *data, /* I - Buffer */ |
2239 | size_t length) /* I - Number of bytes to read */ | |
2240 | { | |
2241 | http_t *http; /* HTTP connection */ | |
a4845881 MS |
2242 | ssize_t bytes; /* Bytes read */ |
2243 | ||
411affcf | 2244 | |
a4845881 | 2245 | DEBUG_printf(("6_httpReadGNUTLS(ptr=%p, data=%p, length=%d)", ptr, data, (int)length)); |
411affcf | 2246 | |
2247 | http = (http_t *)ptr; | |
2248 | ||
2249 | if (!http->blocking) | |
2250 | { | |
2251 | /* | |
2252 | * Make sure we have data before we read... | |
2253 | */ | |
2254 | ||
85dda01c | 2255 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 2256 | { |
f228370c MS |
2257 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2258 | continue; | |
2259 | ||
411affcf | 2260 | http->error = ETIMEDOUT; |
2261 | return (-1); | |
2262 | } | |
2263 | } | |
2264 | ||
a4845881 MS |
2265 | bytes = recv(http->fd, data, length, 0); |
2266 | DEBUG_printf(("6_httpReadGNUTLS: bytes=%d", (int)bytes)); | |
2267 | return (bytes); | |
411affcf | 2268 | } |
2269 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
2270 | ||
2271 | ||
ef416fc2 | 2272 | /* |
ecdc0628 | 2273 | * 'httpReconnect()' - Reconnect to a HTTP server. |
ef416fc2 | 2274 | */ |
2275 | ||
2276 | int /* O - 0 on success, non-zero on failure */ | |
568fa3fa | 2277 | httpReconnect(http_t *http) /* I - Connection to server */ |
ef416fc2 | 2278 | { |
2279 | http_addrlist_t *addr; /* Connected address */ | |
1ff0402e MS |
2280 | #ifdef DEBUG |
2281 | http_addrlist_t *current; /* Current address */ | |
2282 | char temp[256]; /* Temporary address string */ | |
2283 | #endif /* DEBUG */ | |
ef416fc2 | 2284 | |
2285 | ||
e07d4801 | 2286 | DEBUG_printf(("httpReconnect(http=%p)", http)); |
ef416fc2 | 2287 | |
2288 | if (!http) | |
2289 | return (-1); | |
2290 | ||
2291 | #ifdef HAVE_SSL | |
2292 | if (http->tls) | |
1ff0402e | 2293 | { |
e07d4801 | 2294 | DEBUG_puts("2httpReconnect: Shutting down SSL/TLS..."); |
ef416fc2 | 2295 | http_shutdown_ssl(http); |
1ff0402e | 2296 | } |
ef416fc2 | 2297 | #endif /* HAVE_SSL */ |
2298 | ||
2299 | /* | |
2300 | * Close any previously open socket... | |
2301 | */ | |
2302 | ||
2303 | if (http->fd >= 0) | |
bd7854cb | 2304 | { |
e07d4801 | 2305 | DEBUG_printf(("2httpReconnect: Closing socket %d...", http->fd)); |
1ff0402e | 2306 | |
ef416fc2 | 2307 | #ifdef WIN32 |
2308 | closesocket(http->fd); | |
2309 | #else | |
2310 | close(http->fd); | |
2311 | #endif /* WIN32 */ | |
2312 | ||
bd7854cb | 2313 | http->fd = -1; |
2314 | } | |
2315 | ||
ef416fc2 | 2316 | /* |
2317 | * Connect to the server... | |
2318 | */ | |
2319 | ||
1ff0402e MS |
2320 | #ifdef DEBUG |
2321 | for (current = http->addrlist; current; current = current->next) | |
e07d4801 | 2322 | DEBUG_printf(("2httpReconnect: Address %s:%d", |
1ff0402e MS |
2323 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
2324 | _httpAddrPort(&(current->addr)))); | |
2325 | #endif /* DEBUG */ | |
2326 | ||
ef416fc2 | 2327 | if ((addr = httpAddrConnect(http->addrlist, &(http->fd))) == NULL) |
2328 | { | |
2329 | /* | |
2330 | * Unable to connect... | |
2331 | */ | |
2332 | ||
2333 | #ifdef WIN32 | |
2334 | http->error = WSAGetLastError(); | |
2335 | #else | |
2336 | http->error = errno; | |
2337 | #endif /* WIN32 */ | |
2338 | http->status = HTTP_ERROR; | |
2339 | ||
e07d4801 | 2340 | DEBUG_printf(("1httpReconnect: httpAddrConnect failed: %s", |
1ff0402e MS |
2341 | strerror(http->error))); |
2342 | ||
ef416fc2 | 2343 | return (-1); |
2344 | } | |
2345 | ||
e07d4801 | 2346 | DEBUG_printf(("2httpReconnect: New socket=%d", http->fd)); |
1ff0402e | 2347 | |
85dda01c MS |
2348 | if (http->timeout_value > 0) |
2349 | http_set_timeout(http->fd, http->timeout_value); | |
10d09e33 | 2350 | |
ef416fc2 | 2351 | http->hostaddr = &(addr->addr); |
2352 | http->error = 0; | |
2353 | http->status = HTTP_CONTINUE; | |
10ddcf65 | 2354 | http->state = HTTP_WAITING; |
ef416fc2 | 2355 | |
2356 | #ifdef HAVE_SSL | |
2357 | if (http->encryption == HTTP_ENCRYPT_ALWAYS) | |
2358 | { | |
2359 | /* | |
2360 | * Always do encryption via SSL. | |
2361 | */ | |
2362 | ||
2363 | if (http_setup_ssl(http) != 0) | |
2364 | { | |
f7deaa1a | 2365 | # ifdef WIN32 |
ef416fc2 | 2366 | closesocket(http->fd); |
f7deaa1a | 2367 | # else |
ef416fc2 | 2368 | close(http->fd); |
f7deaa1a | 2369 | # endif /* WIN32 */ |
ef416fc2 | 2370 | |
2371 | return (-1); | |
2372 | } | |
2373 | } | |
2374 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED) | |
2375 | return (http_upgrade(http)); | |
2376 | #endif /* HAVE_SSL */ | |
2377 | ||
e07d4801 | 2378 | DEBUG_printf(("1httpReconnect: Connected to %s:%d...", |
1ff0402e MS |
2379 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
2380 | _httpAddrPort(http->hostaddr))); | |
2381 | ||
ef416fc2 | 2382 | return (0); |
2383 | } | |
2384 | ||
2385 | ||
355e94dc MS |
2386 | /* |
2387 | * 'httpSetAuthString()' - Set the current authorization string. | |
2388 | * | |
2389 | * This function just stores a copy of the current authorization string in | |
2390 | * the HTTP connection object. You must still call httpSetField() to set | |
2391 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2392 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2393 | * | |
426c6a59 | 2394 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
2395 | */ |
2396 | ||
2397 | void | |
568fa3fa | 2398 | httpSetAuthString(http_t *http, /* I - Connection to server */ |
355e94dc MS |
2399 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2400 | const char *data) /* I - Auth data (NULL for none) */ | |
2401 | { | |
2402 | /* | |
2403 | * Range check input... | |
2404 | */ | |
2405 | ||
2406 | if (!http) | |
2407 | return; | |
2408 | ||
2409 | if (http->authstring && http->authstring != http->_authstring) | |
2410 | free(http->authstring); | |
2411 | ||
2412 | http->authstring = http->_authstring; | |
2413 | ||
2414 | if (scheme) | |
2415 | { | |
2416 | /* | |
2417 | * Set the current authorization string... | |
2418 | */ | |
2419 | ||
2420 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 2421 | char *temp; |
355e94dc MS |
2422 | |
2423 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
2424 | { |
2425 | if ((temp = malloc(len)) == NULL) | |
2426 | len = sizeof(http->_authstring); | |
2427 | else | |
2428 | http->authstring = temp; | |
2429 | } | |
355e94dc MS |
2430 | |
2431 | if (data) | |
2432 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2433 | else | |
2434 | strlcpy(http->authstring, scheme, len); | |
2435 | } | |
2436 | else | |
2437 | { | |
2438 | /* | |
2439 | * Clear the current authorization string... | |
2440 | */ | |
2441 | ||
2442 | http->_authstring[0] = '\0'; | |
2443 | } | |
2444 | } | |
2445 | ||
2446 | ||
7cf5915e MS |
2447 | /* |
2448 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2449 | * connection. | |
2450 | * | |
321d8d57 | 2451 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
2452 | */ |
2453 | ||
2454 | int /* O - Status of call (0 = success) */ | |
2455 | httpSetCredentials(http_t *http, /* I - Connection to server */ | |
2456 | cups_array_t *credentials) /* I - Array of credentials */ | |
2457 | { | |
2458 | if (!http || cupsArrayCount(credentials) < 1) | |
2459 | return (-1); | |
2460 | ||
2461 | _httpFreeCredentials(http->tls_credentials); | |
2462 | ||
85dda01c | 2463 | http->tls_credentials = _httpCreateCredentials(credentials); |
7cf5915e MS |
2464 | |
2465 | return (http->tls_credentials ? 0 : -1); | |
2466 | } | |
2467 | ||
2468 | ||
ef416fc2 | 2469 | /* |
6d2f911b | 2470 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2471 | * |
426c6a59 | 2472 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 2473 | */ |
2474 | ||
2475 | void | |
2476 | httpSetCookie(http_t *http, /* I - Connection */ | |
2477 | const char *cookie) /* I - Cookie string */ | |
2478 | { | |
2479 | if (!http) | |
2480 | return; | |
2481 | ||
2482 | if (http->cookie) | |
2483 | free(http->cookie); | |
2484 | ||
2485 | if (cookie) | |
2486 | http->cookie = strdup(cookie); | |
2487 | else | |
2488 | http->cookie = NULL; | |
2489 | } | |
2490 | ||
2491 | ||
b423cd4c | 2492 | /* |
2493 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2494 | * | |
2495 | * Currently only HTTP_CONTINUE is supported for the "expect" argument. | |
2496 | * | |
426c6a59 | 2497 | * @since CUPS 1.2/Mac OS X 10.5@ |
b423cd4c | 2498 | */ |
2499 | ||
2500 | void | |
568fa3fa | 2501 | httpSetExpect(http_t *http, /* I - Connection to server */ |
b423cd4c | 2502 | http_status_t expect) /* I - HTTP status to expect (HTTP_CONTINUE) */ |
2503 | { | |
2504 | if (http) | |
2505 | http->expect = expect; | |
2506 | } | |
2507 | ||
2508 | ||
ef416fc2 | 2509 | /* |
2510 | * 'httpSetField()' - Set the value of an HTTP header. | |
2511 | */ | |
2512 | ||
2513 | void | |
568fa3fa | 2514 | httpSetField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2515 | http_field_t field, /* I - Field index */ |
2516 | const char *value) /* I - Value */ | |
2517 | { | |
2518 | if (http == NULL || | |
2519 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
2520 | field > HTTP_FIELD_WWW_AUTHENTICATE || | |
2521 | value == NULL) | |
2522 | return; | |
2523 | ||
2524 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
f7deaa1a | 2525 | |
f7deaa1a | 2526 | if (field == HTTP_FIELD_AUTHORIZATION) |
2527 | { | |
e07d4801 MS |
2528 | /* |
2529 | * Special case for Authorization: as its contents can be | |
2530 | * longer than HTTP_MAX_VALUE | |
2531 | */ | |
2532 | ||
f7deaa1a | 2533 | if (http->field_authorization) |
2534 | free(http->field_authorization); | |
2535 | ||
2536 | http->field_authorization = strdup(value); | |
2537 | } | |
e07d4801 MS |
2538 | else if (field == HTTP_FIELD_HOST) |
2539 | { | |
2540 | /* | |
f11a948a MS |
2541 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2542 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2543 | */ |
2544 | ||
178cb736 MS |
2545 | char *ptr = strchr(value, ':'); |
2546 | ||
2547 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2548 | { |
2549 | /* | |
2550 | * Bracket IPv6 numeric addresses... | |
2551 | * | |
2552 | * This is slightly inefficient (basically copying twice), but is an edge | |
2553 | * case and not worth optimizing... | |
2554 | */ | |
e07d4801 | 2555 | |
f11a948a MS |
2556 | snprintf(http->fields[HTTP_FIELD_HOST], |
2557 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2558 | } | |
2559 | else | |
e07d4801 | 2560 | { |
f11a948a MS |
2561 | /* |
2562 | * Check for a trailing dot on the hostname... | |
2563 | */ | |
2564 | ||
178cb736 | 2565 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2566 | |
2567 | if (*ptr) | |
2568 | { | |
2569 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2570 | |
f11a948a MS |
2571 | if (*ptr == '.') |
2572 | *ptr = '\0'; | |
2573 | } | |
e07d4801 MS |
2574 | } |
2575 | } | |
ef416fc2 | 2576 | } |
2577 | ||
2578 | ||
2579 | /* | |
2580 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2581 | * | |
426c6a59 | 2582 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 2583 | */ |
2584 | ||
2585 | void | |
568fa3fa | 2586 | httpSetLength(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2587 | size_t length) /* I - Length (0 for chunked) */ |
2588 | { | |
2589 | if (!http) | |
2590 | return; | |
2591 | ||
2592 | if (!length) | |
2593 | { | |
2594 | strcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked"); | |
2595 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; | |
2596 | } | |
2597 | else | |
2598 | { | |
2599 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2600 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2601 | CUPS_LLFMT, CUPS_LLCAST length); | |
2602 | } | |
2603 | } | |
2604 | ||
2605 | ||
10d09e33 | 2606 | /* |
f228370c | 2607 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2608 | * |
2609 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2610 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2611 | * | |
2612 | * @since CUPS 1.5/Mac OS X 10.7@ | |
10d09e33 MS |
2613 | */ |
2614 | ||
2615 | void | |
f228370c MS |
2616 | httpSetTimeout( |
2617 | http_t *http, /* I - Connection to server */ | |
2618 | double timeout, /* I - Number of seconds for timeout, | |
10d09e33 | 2619 | must be greater than 0 */ |
f228370c MS |
2620 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2621 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2622 | { |
2623 | if (!http || timeout <= 0.0) | |
2624 | return; | |
2625 | ||
85dda01c MS |
2626 | http->timeout_cb = cb; |
2627 | http->timeout_data = user_data; | |
2628 | http->timeout_value = timeout; | |
10d09e33 MS |
2629 | |
2630 | if (http->fd >= 0) | |
85dda01c | 2631 | http_set_timeout(http->fd, timeout); |
c8fef167 | 2632 | |
85dda01c | 2633 | http_set_wait(http); |
10d09e33 MS |
2634 | } |
2635 | ||
2636 | ||
ef416fc2 | 2637 | /* |
2638 | * 'httpTrace()' - Send an TRACE request to the server. | |
2639 | */ | |
2640 | ||
2641 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 2642 | httpTrace(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2643 | const char *uri) /* I - URI for trace */ |
2644 | { | |
2645 | return (http_send(http, HTTP_TRACE, uri)); | |
2646 | } | |
2647 | ||
2648 | ||
2649 | /* | |
e60ec91f MS |
2650 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2651 | * | |
2652 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2653 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2654 | */ |
2655 | ||
e60ec91f MS |
2656 | int /* O - 1 to continue, 0 to stop */ |
2657 | _httpUpdate(http_t *http, /* I - Connection to server */ | |
2658 | http_status_t *status) /* O - Current HTTP status */ | |
ef416fc2 | 2659 | { |
2660 | char line[32768], /* Line from connection... */ | |
2661 | *value; /* Pointer to value on line */ | |
2662 | http_field_t field; /* Field index */ | |
e60ec91f | 2663 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2664 | |
2665 | ||
e60ec91f | 2666 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
f11a948a | 2667 | http_states[http->state])); |
ef416fc2 | 2668 | |
2669 | /* | |
e60ec91f | 2670 | * Grab a single line from the connection... |
ef416fc2 | 2671 | */ |
2672 | ||
e60ec91f | 2673 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2674 | { |
e60ec91f MS |
2675 | *status = HTTP_ERROR; |
2676 | return (0); | |
ef416fc2 | 2677 | } |
2678 | ||
e60ec91f | 2679 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2680 | |
e60ec91f | 2681 | if (line[0] == '\0') |
ef416fc2 | 2682 | { |
e60ec91f MS |
2683 | /* |
2684 | * Blank line means the start of the data section (if any). Return | |
2685 | * the result code, too... | |
2686 | * | |
2687 | * If we get status 100 (HTTP_CONTINUE), then we *don't* change states. | |
2688 | * Instead, we just return HTTP_CONTINUE to the caller and keep on | |
2689 | * tryin'... | |
2690 | */ | |
ef416fc2 | 2691 | |
e60ec91f | 2692 | if (http->status == HTTP_CONTINUE) |
ef416fc2 | 2693 | { |
e60ec91f MS |
2694 | *status = http->status; |
2695 | return (0); | |
2696 | } | |
ef416fc2 | 2697 | |
e60ec91f MS |
2698 | if (http->status < HTTP_BAD_REQUEST) |
2699 | http->digest_tries = 0; | |
ef416fc2 | 2700 | |
2701 | #ifdef HAVE_SSL | |
e60ec91f MS |
2702 | if (http->status == HTTP_SWITCHING_PROTOCOLS && !http->tls) |
2703 | { | |
2704 | if (http_setup_ssl(http) != 0) | |
ef416fc2 | 2705 | { |
ef416fc2 | 2706 | # ifdef WIN32 |
e60ec91f | 2707 | closesocket(http->fd); |
ef416fc2 | 2708 | # else |
e60ec91f | 2709 | close(http->fd); |
ef416fc2 | 2710 | # endif /* WIN32 */ |
2711 | ||
e60ec91f MS |
2712 | *status = http->status = HTTP_ERROR; |
2713 | return (0); | |
ef416fc2 | 2714 | } |
e60ec91f MS |
2715 | |
2716 | *status = HTTP_CONTINUE; | |
2717 | return (0); | |
2718 | } | |
ef416fc2 | 2719 | #endif /* HAVE_SSL */ |
2720 | ||
e60ec91f | 2721 | httpGetLength2(http); |
ef416fc2 | 2722 | |
e60ec91f MS |
2723 | switch (http->state) |
2724 | { | |
2725 | case HTTP_GET : | |
2726 | case HTTP_POST : | |
2727 | case HTTP_POST_RECV : | |
2728 | case HTTP_PUT : | |
2729 | http->state ++; | |
2730 | case HTTP_POST_SEND : | |
2731 | case HTTP_HEAD : | |
2732 | break; | |
ef416fc2 | 2733 | |
e60ec91f MS |
2734 | default : |
2735 | http->state = HTTP_WAITING; | |
2736 | break; | |
ef416fc2 | 2737 | } |
e60ec91f MS |
2738 | |
2739 | *status = http->status; | |
2740 | return (0); | |
2741 | } | |
2742 | else if (!strncmp(line, "HTTP/", 5)) | |
2743 | { | |
2744 | /* | |
2745 | * Got the beginning of a response... | |
2746 | */ | |
2747 | ||
2748 | int intstatus; /* Status value as an integer */ | |
2749 | ||
2750 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
2751 | { | |
2752 | *status = http->status = HTTP_ERROR; | |
2753 | return (0); | |
2754 | } | |
2755 | ||
2756 | http->version = (http_version_t)(major * 100 + minor); | |
2757 | *status = http->status = (http_status_t)intstatus; | |
2758 | } | |
2759 | else if ((value = strchr(line, ':')) != NULL) | |
2760 | { | |
2761 | /* | |
2762 | * Got a value... | |
2763 | */ | |
2764 | ||
2765 | *value++ = '\0'; | |
2766 | while (_cups_isspace(*value)) | |
2767 | value ++; | |
2768 | ||
2769 | /* | |
2770 | * Be tolerants of servers that send unknown attribute fields... | |
2771 | */ | |
2772 | ||
88f9aafc | 2773 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 2774 | { |
2775 | /* | |
e60ec91f | 2776 | * "Expect: 100-continue" or similar... |
ef416fc2 | 2777 | */ |
2778 | ||
e60ec91f | 2779 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 2780 | } |
88f9aafc | 2781 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 2782 | { |
2783 | /* | |
e60ec91f | 2784 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 2785 | */ |
2786 | ||
e60ec91f MS |
2787 | httpSetCookie(http, value); |
2788 | } | |
2789 | else if ((field = http_field(line)) != HTTP_FIELD_UNKNOWN) | |
2790 | httpSetField(http, field, value); | |
2791 | #ifdef DEBUG | |
2792 | else | |
2793 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
2794 | #endif /* DEBUG */ | |
2795 | } | |
2796 | else | |
2797 | { | |
2798 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
2799 | *status = http->status = HTTP_ERROR; | |
2800 | return (0); | |
2801 | } | |
ef416fc2 | 2802 | |
e60ec91f MS |
2803 | return (1); |
2804 | } | |
ef416fc2 | 2805 | |
ef416fc2 | 2806 | |
e60ec91f MS |
2807 | /* |
2808 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
2809 | */ | |
ef416fc2 | 2810 | |
e60ec91f MS |
2811 | http_status_t /* O - HTTP status */ |
2812 | httpUpdate(http_t *http) /* I - Connection to server */ | |
2813 | { | |
2814 | http_status_t status; /* Request status */ | |
2815 | ||
2816 | ||
2817 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
2818 | http_states[http->state])); | |
2819 | ||
2820 | /* | |
2821 | * Flush pending data, if any... | |
2822 | */ | |
2823 | ||
2824 | if (http->wused) | |
2825 | { | |
2826 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
2827 | ||
2828 | if (httpFlushWrite(http) < 0) | |
ef416fc2 | 2829 | return (HTTP_ERROR); |
ef416fc2 | 2830 | } |
2831 | ||
e60ec91f MS |
2832 | /* |
2833 | * If we haven't issued any commands, then there is nothing to "update"... | |
2834 | */ | |
2835 | ||
2836 | if (http->state == HTTP_WAITING) | |
2837 | return (HTTP_CONTINUE); | |
2838 | ||
2839 | /* | |
2840 | * Grab all of the lines we can from the connection... | |
2841 | */ | |
2842 | ||
2843 | while (_httpUpdate(http, &status)); | |
2844 | ||
ef416fc2 | 2845 | /* |
2846 | * See if there was an error... | |
2847 | */ | |
2848 | ||
2849 | if (http->error == EPIPE && http->status > HTTP_CONTINUE) | |
e07d4801 MS |
2850 | { |
2851 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 2852 | return (http->status); |
e07d4801 | 2853 | } |
ef416fc2 | 2854 | |
2855 | if (http->error) | |
2856 | { | |
e07d4801 | 2857 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 2858 | strerror(http->error))); |
2859 | http->status = HTTP_ERROR; | |
2860 | return (HTTP_ERROR); | |
2861 | } | |
2862 | ||
2863 | /* | |
e60ec91f | 2864 | * Return the current status... |
ef416fc2 | 2865 | */ |
2866 | ||
e60ec91f | 2867 | return (status); |
ef416fc2 | 2868 | } |
2869 | ||
2870 | ||
38e73f87 MS |
2871 | /* |
2872 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
2873 | */ | |
2874 | ||
2875 | int /* O - 1 if data is available, 0 otherwise */ | |
2876 | _httpWait(http_t *http, /* I - Connection to server */ | |
2877 | int msec, /* I - Milliseconds to wait */ | |
2878 | int usessl) /* I - Use SSL context? */ | |
2879 | { | |
2880 | #ifdef HAVE_POLL | |
2881 | struct pollfd pfd; /* Polled file descriptor */ | |
2882 | #else | |
2883 | fd_set input_set; /* select() input set */ | |
2884 | struct timeval timeout; /* Timeout */ | |
2885 | #endif /* HAVE_POLL */ | |
2886 | int nfds; /* Result from select()/poll() */ | |
2887 | ||
2888 | ||
e07d4801 | 2889 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
2890 | |
2891 | if (http->fd < 0) | |
f8b3a85b MS |
2892 | { |
2893 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 2894 | return (0); |
f8b3a85b | 2895 | } |
38e73f87 MS |
2896 | |
2897 | /* | |
2898 | * Check the SSL/TLS buffers for data first... | |
2899 | */ | |
2900 | ||
2901 | #ifdef HAVE_SSL | |
2902 | if (http->tls && usessl) | |
2903 | { | |
2904 | # ifdef HAVE_LIBSSL | |
7cf5915e | 2905 | if (SSL_pending(http->tls)) |
f8b3a85b MS |
2906 | { |
2907 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2908 | return (1); |
f8b3a85b MS |
2909 | } |
2910 | ||
38e73f87 | 2911 | # elif defined(HAVE_GNUTLS) |
7cf5915e | 2912 | if (gnutls_record_check_pending(http->tls)) |
f8b3a85b MS |
2913 | { |
2914 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2915 | return (1); |
f8b3a85b MS |
2916 | } |
2917 | ||
38e73f87 MS |
2918 | # elif defined(HAVE_CDSASSL) |
2919 | size_t bytes; /* Bytes that are available */ | |
2920 | ||
7cf5915e | 2921 | if (!SSLGetBufferedReadSize(http->tls, &bytes) && |
38e73f87 | 2922 | bytes > 0) |
f8b3a85b MS |
2923 | { |
2924 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2925 | return (1); |
f8b3a85b | 2926 | } |
38e73f87 MS |
2927 | # endif /* HAVE_LIBSSL */ |
2928 | } | |
2929 | #endif /* HAVE_SSL */ | |
2930 | ||
2931 | /* | |
2932 | * Then try doing a select() or poll() to poll the socket... | |
2933 | */ | |
2934 | ||
2935 | #ifdef HAVE_POLL | |
2936 | pfd.fd = http->fd; | |
2937 | pfd.events = POLLIN; | |
2938 | ||
e07d4801 MS |
2939 | while ((nfds = poll(&pfd, 1, msec)) < 0 && |
2940 | (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
2941 | |
2942 | #else | |
2943 | do | |
2944 | { | |
2945 | FD_ZERO(&input_set); | |
2946 | FD_SET(http->fd, &input_set); | |
2947 | ||
e07d4801 | 2948 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
2949 | |
2950 | if (msec >= 0) | |
2951 | { | |
2952 | timeout.tv_sec = msec / 1000; | |
2953 | timeout.tv_usec = (msec % 1000) * 1000; | |
2954 | ||
2955 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
2956 | } | |
2957 | else | |
2958 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
2959 | ||
e07d4801 | 2960 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
2961 | } |
2962 | # ifdef WIN32 | |
cc754834 MS |
2963 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
2964 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 2965 | # else |
e07d4801 | 2966 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
2967 | # endif /* WIN32 */ |
2968 | #endif /* HAVE_POLL */ | |
2969 | ||
f8b3a85b MS |
2970 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
2971 | errno)); | |
38e73f87 MS |
2972 | |
2973 | return (nfds > 0); | |
2974 | } | |
2975 | ||
2976 | ||
ef416fc2 | 2977 | /* |
2978 | * 'httpWait()' - Wait for data available on a connection. | |
2979 | * | |
426c6a59 | 2980 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 2981 | */ |
2982 | ||
2983 | int /* O - 1 if data is available, 0 otherwise */ | |
568fa3fa | 2984 | httpWait(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2985 | int msec) /* I - Milliseconds to wait */ |
2986 | { | |
2987 | /* | |
2988 | * First see if there is data in the buffer... | |
2989 | */ | |
2990 | ||
22c9029b MS |
2991 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
2992 | ||
ef416fc2 | 2993 | if (http == NULL) |
2994 | return (0); | |
2995 | ||
2996 | if (http->used) | |
22c9029b MS |
2997 | { |
2998 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 2999 | return (1); |
22c9029b | 3000 | } |
ef416fc2 | 3001 | |
8ca02f3c | 3002 | /* |
3003 | * Flush pending data, if any... | |
3004 | */ | |
3005 | ||
3006 | if (http->wused) | |
3007 | { | |
22c9029b MS |
3008 | DEBUG_puts("3httpWait: Flushing write buffer."); |
3009 | ||
8ca02f3c | 3010 | if (httpFlushWrite(http) < 0) |
3011 | return (0); | |
3012 | } | |
3013 | ||
ef416fc2 | 3014 | /* |
3015 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
3016 | */ | |
3017 | ||
38e73f87 | 3018 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 3019 | } |
3020 | ||
3021 | ||
3022 | /* | |
3023 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 3024 | * |
3025 | * This function is deprecated. Use the httpWrite2() function which can | |
3026 | * write more than 2GB of data. | |
3027 | * | |
3028 | * @deprecated@ | |
ef416fc2 | 3029 | */ |
ef55b745 | 3030 | |
ef416fc2 | 3031 | int /* O - Number of bytes written */ |
568fa3fa | 3032 | httpWrite(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3033 | const char *buffer, /* I - Buffer for data */ |
3034 | int length) /* I - Number of bytes to write */ | |
3035 | { | |
a4d04587 | 3036 | return ((int)httpWrite2(http, buffer, length)); |
3037 | } | |
3038 | ||
3039 | ||
3040 | /* | |
3041 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3042 | * |
426c6a59 | 3043 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 3044 | */ |
ef55b745 | 3045 | |
a4d04587 | 3046 | ssize_t /* O - Number of bytes written */ |
568fa3fa | 3047 | httpWrite2(http_t *http, /* I - Connection to server */ |
a4d04587 | 3048 | const char *buffer, /* I - Buffer for data */ |
3049 | size_t length) /* I - Number of bytes to write */ | |
3050 | { | |
3051 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3052 | |
3053 | ||
e07d4801 | 3054 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3055 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3056 | |
3057 | /* | |
3058 | * Range check input... | |
3059 | */ | |
3060 | ||
3061 | if (http == NULL || buffer == NULL) | |
3062 | return (-1); | |
3063 | ||
3064 | /* | |
3065 | * Mark activity on the connection... | |
3066 | */ | |
3067 | ||
3068 | http->activity = time(NULL); | |
3069 | ||
3070 | /* | |
3071 | * Buffer small writes for better performance... | |
3072 | */ | |
3073 | ||
3074 | if (length > 0) | |
3075 | { | |
3076 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
3077 | { | |
e07d4801 MS |
3078 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3079 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3080 | |
3081 | httpFlushWrite(http); | |
3082 | } | |
3083 | ||
38e73f87 MS |
3084 | if ((length + http->wused) <= sizeof(http->wbuffer) && |
3085 | length < sizeof(http->wbuffer)) | |
ef416fc2 | 3086 | { |
3087 | /* | |
3088 | * Write to buffer... | |
3089 | */ | |
3090 | ||
e07d4801 | 3091 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3092 | CUPS_LLCAST length)); |
ef416fc2 | 3093 | |
3094 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3095 | http->wused += (int)length; |
3096 | bytes = (ssize_t)length; | |
ef416fc2 | 3097 | } |
3098 | else | |
3099 | { | |
3100 | /* | |
3101 | * Otherwise write the data directly... | |
3102 | */ | |
3103 | ||
e07d4801 | 3104 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3105 | CUPS_LLCAST length)); |
ef416fc2 | 3106 | |
3107 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
b86bc4cf | 3108 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 3109 | else |
b86bc4cf | 3110 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 3111 | |
e07d4801 | 3112 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3113 | CUPS_LLCAST bytes)); |
ef416fc2 | 3114 | } |
3115 | ||
3116 | if (http->data_encoding == HTTP_ENCODE_LENGTH) | |
3117 | http->data_remaining -= bytes; | |
3118 | } | |
3119 | else | |
3120 | bytes = 0; | |
3121 | ||
3122 | /* | |
3123 | * Handle end-of-request processing... | |
3124 | */ | |
3125 | ||
3126 | if ((http->data_encoding == HTTP_ENCODE_CHUNKED && length == 0) || | |
3127 | (http->data_encoding == HTTP_ENCODE_LENGTH && http->data_remaining == 0)) | |
3128 | { | |
3129 | /* | |
3130 | * Finished with the transfer; unless we are sending POST or PUT | |
3131 | * data, go idle... | |
3132 | */ | |
3133 | ||
e07d4801 | 3134 | DEBUG_puts("2httpWrite: changing states..."); |
ef416fc2 | 3135 | |
3136 | if (http->wused) | |
3137 | httpFlushWrite(http); | |
3138 | ||
3139 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
3140 | { | |
3141 | /* | |
3142 | * Send a 0-length chunk at the end of the request... | |
3143 | */ | |
3144 | ||
3145 | http_write(http, "0\r\n\r\n", 5); | |
3146 | ||
3147 | /* | |
3148 | * Reset the data state... | |
3149 | */ | |
3150 | ||
3151 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
3152 | http->data_remaining = 0; | |
3153 | } | |
ef416fc2 | 3154 | } |
3155 | ||
3156 | return (bytes); | |
3157 | } | |
3158 | ||
3159 | ||
3160 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
3161 | /* | |
411affcf | 3162 | * '_httpWriteCDSA()' - Write function for the CDSA library. |
ef416fc2 | 3163 | */ |
3164 | ||
3165 | OSStatus /* O - -1 on error, 0 on success */ | |
3166 | _httpWriteCDSA( | |
3167 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
3168 | const void *data, /* I - Data buffer */ | |
3169 | size_t *dataLength) /* IO - Number of bytes */ | |
3170 | { | |
411affcf | 3171 | OSStatus result; /* Return value */ |
3172 | ssize_t bytes; /* Number of bytes read */ | |
3173 | http_t *http; /* HTTP connection */ | |
e53920b9 | 3174 | |
3175 | ||
411affcf | 3176 | http = (http_t *)connection; |
ef416fc2 | 3177 | |
b423cd4c | 3178 | do |
411affcf | 3179 | { |
3180 | bytes = write(http->fd, data, *dataLength); | |
3181 | } | |
e07d4801 | 3182 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 3183 | |
b423cd4c | 3184 | if (bytes == *dataLength) |
411affcf | 3185 | { |
b423cd4c | 3186 | result = 0; |
411affcf | 3187 | } |
b423cd4c | 3188 | else if (bytes >= 0) |
3189 | { | |
3190 | *dataLength = bytes; | |
3191 | result = errSSLWouldBlock; | |
3192 | } | |
3193 | else | |
3194 | { | |
3195 | *dataLength = 0; | |
ef55b745 | 3196 | |
fa73b229 | 3197 | if (errno == EAGAIN) |
b423cd4c | 3198 | result = errSSLWouldBlock; |
b423cd4c | 3199 | else |
ed486911 | 3200 | result = errSSLClosedAbort; |
ef416fc2 | 3201 | } |
b423cd4c | 3202 | |
411affcf | 3203 | return (result); |
ef416fc2 | 3204 | } |
3205 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
3206 | ||
3207 | ||
411affcf | 3208 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
3209 | /* | |
3210 | * '_httpWriteGNUTLS()' - Write function for the GNU TLS library. | |
3211 | */ | |
3212 | ||
3213 | ssize_t /* O - Number of bytes written or -1 on error */ | |
3214 | _httpWriteGNUTLS( | |
568fa3fa | 3215 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 3216 | const void *data, /* I - Data buffer */ |
3217 | size_t length) /* I - Number of bytes to write */ | |
3218 | { | |
a4845881 MS |
3219 | ssize_t bytes; /* Bytes written */ |
3220 | ||
3221 | ||
3222 | DEBUG_printf(("6_httpWriteGNUTLS(ptr=%p, data=%p, length=%d)", ptr, data, | |
3223 | (int)length)); | |
a2326b5b | 3224 | #ifdef DEBUG |
a4845881 | 3225 | http_debug_hex("_httpWriteGNUTLS", data, (int)length); |
a2326b5b | 3226 | #endif /* DEBUG */ |
a4845881 MS |
3227 | |
3228 | bytes = send(((http_t *)ptr)->fd, data, length, 0); | |
3229 | DEBUG_printf(("_httpWriteGNUTLS: bytes=%d", (int)bytes)); | |
a2326b5b | 3230 | |
a4845881 | 3231 | return (bytes); |
411affcf | 3232 | } |
3233 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
3234 | ||
3235 | ||
3236 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
3237 | /* | |
3238 | * 'http_bio_ctrl()' - Control the HTTP connection. | |
3239 | */ | |
3240 | ||
3241 | static long /* O - Result/data */ | |
3242 | http_bio_ctrl(BIO *h, /* I - BIO data */ | |
3243 | int cmd, /* I - Control command */ | |
3244 | long arg1, /* I - First argument */ | |
3245 | void *arg2) /* I - Second argument */ | |
3246 | { | |
3247 | switch (cmd) | |
3248 | { | |
3249 | default : | |
3250 | return (0); | |
3251 | ||
3252 | case BIO_CTRL_RESET : | |
3253 | h->ptr = NULL; | |
3254 | return (0); | |
3255 | ||
3256 | case BIO_C_SET_FILE_PTR : | |
3257 | h->ptr = arg2; | |
3258 | h->init = 1; | |
3259 | return (1); | |
3260 | ||
3261 | case BIO_C_GET_FILE_PTR : | |
3262 | if (arg2) | |
3263 | { | |
3264 | *((void **)arg2) = h->ptr; | |
3265 | return (1); | |
3266 | } | |
3267 | else | |
3268 | return (0); | |
ef55b745 | 3269 | |
411affcf | 3270 | case BIO_CTRL_DUP : |
3271 | case BIO_CTRL_FLUSH : | |
3272 | return (1); | |
3273 | } | |
3274 | } | |
3275 | ||
3276 | ||
3277 | /* | |
3278 | * 'http_bio_free()' - Free OpenSSL data. | |
3279 | */ | |
3280 | ||
3281 | static int /* O - 1 on success, 0 on failure */ | |
3282 | http_bio_free(BIO *h) /* I - BIO data */ | |
3283 | { | |
3284 | if (!h) | |
3285 | return (0); | |
3286 | ||
3287 | if (h->shutdown) | |
3288 | { | |
3289 | h->init = 0; | |
3290 | h->flags = 0; | |
3291 | } | |
3292 | ||
3293 | return (1); | |
3294 | } | |
3295 | ||
3296 | ||
3297 | /* | |
3298 | * 'http_bio_new()' - Initialize an OpenSSL BIO structure. | |
3299 | */ | |
3300 | ||
3301 | static int /* O - 1 on success, 0 on failure */ | |
3302 | http_bio_new(BIO *h) /* I - BIO data */ | |
3303 | { | |
3304 | if (!h) | |
3305 | return (0); | |
3306 | ||
3307 | h->init = 0; | |
3308 | h->num = 0; | |
3309 | h->ptr = NULL; | |
3310 | h->flags = 0; | |
3311 | ||
3312 | return (1); | |
3313 | } | |
3314 | ||
3315 | ||
3316 | /* | |
3317 | * 'http_bio_puts()' - Send a string for OpenSSL. | |
3318 | */ | |
3319 | ||
3320 | static int /* O - Bytes written */ | |
3321 | http_bio_puts(BIO *h, /* I - BIO data */ | |
3322 | const char *str) /* I - String to write */ | |
3323 | { | |
b86bc4cf | 3324 | #ifdef WIN32 |
3325 | return (send(((http_t *)h->ptr)->fd, str, (int)strlen(str), 0)); | |
3326 | #else | |
411affcf | 3327 | return (send(((http_t *)h->ptr)->fd, str, strlen(str), 0)); |
b86bc4cf | 3328 | #endif /* WIN32 */ |
411affcf | 3329 | } |
3330 | ||
3331 | ||
3332 | /* | |
3333 | * 'http_bio_read()' - Read data for OpenSSL. | |
3334 | */ | |
3335 | ||
3336 | static int /* O - Bytes read */ | |
3337 | http_bio_read(BIO *h, /* I - BIO data */ | |
3338 | char *buf, /* I - Buffer */ | |
3339 | int size) /* I - Number of bytes to read */ | |
3340 | { | |
3341 | http_t *http; /* HTTP connection */ | |
3342 | ||
3343 | ||
3344 | http = (http_t *)h->ptr; | |
3345 | ||
3346 | if (!http->blocking) | |
3347 | { | |
3348 | /* | |
3349 | * Make sure we have data before we read... | |
3350 | */ | |
3351 | ||
85dda01c | 3352 | while (!_httpWait(http, http->wait_value, 0)) |
411affcf | 3353 | { |
f228370c MS |
3354 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
3355 | continue; | |
3356 | ||
b86bc4cf | 3357 | #ifdef WIN32 |
3358 | http->error = WSAETIMEDOUT; | |
3359 | #else | |
411affcf | 3360 | http->error = ETIMEDOUT; |
b86bc4cf | 3361 | #endif /* WIN32 */ |
3362 | ||
411affcf | 3363 | return (-1); |
3364 | } | |
3365 | } | |
3366 | ||
3367 | return (recv(http->fd, buf, size, 0)); | |
3368 | } | |
3369 | ||
3370 | ||
3371 | /* | |
3372 | * 'http_bio_write()' - Write data for OpenSSL. | |
3373 | */ | |
3374 | ||
3375 | static int /* O - Bytes written */ | |
3376 | http_bio_write(BIO *h, /* I - BIO data */ | |
3377 | const char *buf, /* I - Buffer to write */ | |
3378 | int num) /* I - Number of bytes to write */ | |
3379 | { | |
3380 | return (send(((http_t *)h->ptr)->fd, buf, num, 0)); | |
3381 | } | |
3382 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
3383 | ||
3384 | ||
ae71f5de MS |
3385 | #ifdef DEBUG |
3386 | /* | |
3387 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
3388 | */ | |
3389 | ||
3390 | static void | |
3391 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
3392 | const char *buffer, /* I - Buffer to dump */ | |
3393 | int bytes) /* I - Bytes to dump */ | |
3394 | { | |
3395 | int i, j, /* Looping vars */ | |
3396 | ch; /* Current character */ | |
3397 | char line[255], /* Line buffer */ | |
3398 | *start, /* Start of line after prefix */ | |
3399 | *ptr; /* Pointer into line */ | |
3400 | ||
3401 | ||
f11a948a | 3402 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
3403 | return; |
3404 | ||
83e08001 | 3405 | DEBUG_printf(("6%s: %d bytes:", prefix, bytes)); |
ae71f5de | 3406 | |
f11a948a | 3407 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
3408 | start = line + strlen(line); |
3409 | ||
3410 | for (i = 0; i < bytes; i += 16) | |
3411 | { | |
3412 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
3413 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
3414 | ||
3415 | while (j < 16) | |
3416 | { | |
3417 | strcpy(ptr, " "); | |
3418 | ptr += 2; | |
3419 | j ++; | |
3420 | } | |
3421 | ||
3422 | strcpy(ptr, " "); | |
3423 | ptr += 2; | |
3424 | ||
3425 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
3426 | { | |
3427 | ch = buffer[i + j] & 255; | |
3428 | ||
3429 | if (ch < ' ' || ch >= 127) | |
3430 | ch = '.'; | |
3431 | ||
3432 | *ptr++ = ch; | |
3433 | } | |
3434 | ||
3435 | *ptr = '\0'; | |
3436 | DEBUG_puts(line); | |
3437 | } | |
3438 | } | |
3439 | #endif /* DEBUG */ | |
3440 | ||
3441 | ||
ef416fc2 | 3442 | /* |
3443 | * 'http_field()' - Return the field index for a field name. | |
3444 | */ | |
3445 | ||
ae71f5de MS |
3446 | static http_field_t /* O - Field index */ |
3447 | http_field(const char *name) /* I - String name */ | |
ef416fc2 | 3448 | { |
ae71f5de | 3449 | int i; /* Looping var */ |
ef416fc2 | 3450 | |
3451 | ||
3452 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
88f9aafc | 3453 | if (_cups_strcasecmp(name, http_fields[i]) == 0) |
ef416fc2 | 3454 | return ((http_field_t)i); |
3455 | ||
3456 | return (HTTP_FIELD_UNKNOWN); | |
3457 | } | |
3458 | ||
3459 | ||
3460 | #ifdef HAVE_SSL | |
3461 | /* | |
3462 | * 'http_read_ssl()' - Read from a SSL/TLS connection. | |
3463 | */ | |
3464 | ||
3465 | static int /* O - Bytes read */ | |
568fa3fa | 3466 | http_read_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3467 | char *buf, /* I - Buffer to store data */ |
3468 | int len) /* I - Length of buffer */ | |
3469 | { | |
3470 | # if defined(HAVE_LIBSSL) | |
3471 | return (SSL_read((SSL *)(http->tls), buf, len)); | |
3472 | ||
3473 | # elif defined(HAVE_GNUTLS) | |
ef55b745 MS |
3474 | ssize_t result; /* Return value */ |
3475 | ||
3476 | ||
7cf5915e | 3477 | result = gnutls_record_recv(http->tls, buf, len); |
ef55b745 MS |
3478 | |
3479 | if (result < 0 && !errno) | |
3480 | { | |
3481 | /* | |
3482 | * Convert GNU TLS error to errno value... | |
3483 | */ | |
3484 | ||
3485 | switch (result) | |
3486 | { | |
3487 | case GNUTLS_E_INTERRUPTED : | |
3488 | errno = EINTR; | |
3489 | break; | |
3490 | ||
3491 | case GNUTLS_E_AGAIN : | |
3492 | errno = EAGAIN; | |
3493 | break; | |
3494 | ||
3495 | default : | |
3496 | errno = EPIPE; | |
3497 | break; | |
3498 | } | |
3499 | ||
3500 | result = -1; | |
3501 | } | |
3502 | ||
3503 | return ((int)result); | |
ef416fc2 | 3504 | |
3505 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 3506 | int result; /* Return value */ |
ef416fc2 | 3507 | OSStatus error; /* Error info */ |
3508 | size_t processed; /* Number of bytes processed */ | |
3509 | ||
3510 | ||
7cf5915e | 3511 | error = SSLRead(http->tls, buf, len, &processed); |
83e08001 MS |
3512 | DEBUG_printf(("6http_read_ssl: error=%d, processed=%d", (int)error, |
3513 | (int)processed)); | |
fa73b229 | 3514 | switch (error) |
ef416fc2 | 3515 | { |
fa73b229 | 3516 | case 0 : |
3517 | result = (int)processed; | |
3518 | break; | |
84315f46 | 3519 | |
fa73b229 | 3520 | case errSSLWouldBlock : |
b423cd4c | 3521 | if (processed) |
3522 | result = (int)processed; | |
3523 | else | |
3524 | { | |
3525 | result = -1; | |
83e08001 | 3526 | errno = EINTR; |
b423cd4c | 3527 | } |
fa73b229 | 3528 | break; |
84315f46 MS |
3529 | |
3530 | case errSSLClosedGraceful : | |
fa73b229 | 3531 | default : |
84315f46 MS |
3532 | if (processed) |
3533 | result = (int)processed; | |
3534 | else | |
3535 | { | |
3536 | result = -1; | |
83e08001 | 3537 | errno = EPIPE; |
84315f46 | 3538 | } |
fa73b229 | 3539 | break; |
ef416fc2 | 3540 | } |
fa73b229 | 3541 | |
3542 | return (result); | |
83e08001 | 3543 | |
cc754834 MS |
3544 | # elif defined(HAVE_SSPISSL) |
3545 | return _sspiRead((_sspi_struct_t*) http->tls, buf, len); | |
ef416fc2 | 3546 | # endif /* HAVE_LIBSSL */ |
3547 | } | |
3548 | #endif /* HAVE_SSL */ | |
3549 | ||
3550 | ||
3551 | /* | |
3552 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
3553 | */ | |
3554 | ||
3555 | static int /* O - 0 on success, non-zero on error */ | |
568fa3fa | 3556 | http_send(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3557 | http_state_t request, /* I - Request code */ |
3558 | const char *uri) /* I - URI */ | |
3559 | { | |
3560 | int i; /* Looping var */ | |
839a51c8 | 3561 | char buf[1024]; /* Encoded URI buffer */ |
ef416fc2 | 3562 | static const char * const codes[] = |
3563 | { /* Request code strings */ | |
3564 | NULL, | |
3565 | "OPTIONS", | |
3566 | "GET", | |
3567 | NULL, | |
3568 | "HEAD", | |
3569 | "POST", | |
3570 | NULL, | |
3571 | NULL, | |
3572 | "PUT", | |
3573 | NULL, | |
3574 | "DELETE", | |
3575 | "TRACE", | |
3576 | "CLOSE" | |
3577 | }; | |
ef416fc2 | 3578 | |
3579 | ||
e07d4801 | 3580 | DEBUG_printf(("7http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 3581 | http, codes[request], uri)); |
3582 | ||
3583 | if (http == NULL || uri == NULL) | |
3584 | return (-1); | |
3585 | ||
3586 | /* | |
3587 | * Set the User-Agent field if it isn't already... | |
3588 | */ | |
3589 | ||
3590 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
3591 | httpSetField(http, HTTP_FIELD_USER_AGENT, CUPS_MINIMAL); | |
3592 | ||
3593 | /* | |
3594 | * Encode the URI as needed... | |
3595 | */ | |
3596 | ||
839a51c8 | 3597 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 3598 | |
3599 | /* | |
3600 | * See if we had an error the last time around; if so, reconnect... | |
3601 | */ | |
3602 | ||
3603 | if (http->status == HTTP_ERROR || http->status >= HTTP_BAD_REQUEST) | |
fa73b229 | 3604 | if (httpReconnect(http)) |
3605 | return (-1); | |
ef416fc2 | 3606 | |
d09495fa | 3607 | /* |
3608 | * Flush any written data that is pending... | |
3609 | */ | |
3610 | ||
3611 | if (http->wused) | |
536bc2c6 MS |
3612 | { |
3613 | if (httpFlushWrite(http) < 0) | |
3614 | if (httpReconnect(http)) | |
3615 | return (-1); | |
3616 | } | |
d09495fa | 3617 | |
ef416fc2 | 3618 | /* |
3619 | * Send the request header... | |
3620 | */ | |
3621 | ||
d09495fa | 3622 | http->state = request; |
3623 | http->data_encoding = HTTP_ENCODE_FIELDS; | |
3624 | ||
ef416fc2 | 3625 | if (request == HTTP_POST || request == HTTP_PUT) |
3626 | http->state ++; | |
3627 | ||
3628 | http->status = HTTP_CONTINUE; | |
3629 | ||
3630 | #ifdef HAVE_SSL | |
3631 | if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
3632 | { | |
3633 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3634 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.0,SSL/2.0,SSL/3.0"); | |
3635 | } | |
3636 | #endif /* HAVE_SSL */ | |
3637 | ||
3638 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
3639 | { | |
3640 | http->status = HTTP_ERROR; | |
3641 | return (-1); | |
3642 | } | |
3643 | ||
3644 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3645 | if (http->fields[i][0] != '\0') | |
3646 | { | |
e07d4801 | 3647 | DEBUG_printf(("9http_send: %s: %s", http_fields[i], |
ae71f5de | 3648 | httpGetField(http, i))); |
ef416fc2 | 3649 | |
ef55b745 | 3650 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], |
f7deaa1a | 3651 | httpGetField(http, i)) < 1) |
ef416fc2 | 3652 | { |
3653 | http->status = HTTP_ERROR; | |
3654 | return (-1); | |
3655 | } | |
3656 | } | |
3657 | ||
3658 | if (http->cookie) | |
3659 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
3660 | { | |
3661 | http->status = HTTP_ERROR; | |
3662 | return (-1); | |
3663 | } | |
3664 | ||
b423cd4c | 3665 | if (http->expect == HTTP_CONTINUE && |
3666 | (http->state == HTTP_POST_RECV || http->state == HTTP_PUT_RECV)) | |
3667 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) | |
3668 | { | |
3669 | http->status = HTTP_ERROR; | |
3670 | return (-1); | |
3671 | } | |
3672 | ||
ef416fc2 | 3673 | if (httpPrintf(http, "\r\n") < 1) |
3674 | { | |
3675 | http->status = HTTP_ERROR; | |
3676 | return (-1); | |
3677 | } | |
3678 | ||
536bc2c6 MS |
3679 | if (httpFlushWrite(http) < 0) |
3680 | return (-1); | |
3681 | ||
ef416fc2 | 3682 | httpGetLength2(http); |
3683 | httpClearFields(http); | |
3684 | ||
f7deaa1a | 3685 | /* |
b94498cf | 3686 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 3687 | */ |
3688 | ||
ef55b745 MS |
3689 | if (http->field_authorization && http->authstring && |
3690 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 3691 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 3692 | { |
3693 | http->_authstring[0] = '\0'; | |
3694 | ||
3695 | if (http->authstring != http->_authstring) | |
3696 | free(http->authstring); | |
ef55b745 | 3697 | |
f7deaa1a | 3698 | http->authstring = http->_authstring; |
3699 | } | |
3700 | ||
ef416fc2 | 3701 | return (0); |
3702 | } | |
3703 | ||
3704 | ||
3705 | #ifdef HAVE_SSL | |
82f97232 | 3706 | # if defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
3707 | /* |
3708 | * 'http_set_credentials()' - Set the SSL/TLS credentials. | |
3709 | */ | |
3710 | ||
3711 | static int /* O - Status of connection */ | |
3712 | http_set_credentials(http_t *http) /* I - Connection to server */ | |
3713 | { | |
3714 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
7cf5915e MS |
3715 | OSStatus error = 0; /* Error code */ |
3716 | http_tls_credentials_t credentials = NULL; | |
3717 | /* TLS credentials */ | |
7cf5915e MS |
3718 | |
3719 | ||
3720 | DEBUG_printf(("7http_set_credentials(%p)", http)); | |
3721 | ||
7cf5915e MS |
3722 | /* |
3723 | * Prefer connection specific credentials... | |
3724 | */ | |
3725 | ||
3726 | if ((credentials = http->tls_credentials) == NULL) | |
3727 | credentials = cg->tls_credentials; | |
3728 | ||
3729 | # if HAVE_SECPOLICYCREATESSL | |
3730 | /* | |
3731 | * Otherwise root around in the user's keychain to see if one can be found... | |
3732 | */ | |
3733 | ||
3734 | if (!credentials) | |
3735 | { | |
3736 | CFDictionaryRef query; /* Query dictionary */ | |
3737 | CFTypeRef matches = NULL; /* Matching credentials */ | |
3738 | CFArrayRef dn_array = NULL;/* Distinguished names array */ | |
3739 | CFTypeRef keys[] = { kSecClass, | |
3740 | kSecMatchLimit, | |
3741 | kSecReturnRef }; | |
3742 | /* Keys for dictionary */ | |
3743 | CFTypeRef values[] = { kSecClassCertificate, | |
3744 | kSecMatchLimitOne, | |
3745 | kCFBooleanTrue }; | |
3746 | /* Values for dictionary */ | |
3747 | ||
3748 | /* | |
3749 | * Get the names associated with the server. | |
3750 | */ | |
3751 | ||
3752 | if ((error = SSLCopyDistinguishedNames(http->tls, &dn_array)) != noErr) | |
3753 | { | |
3754 | DEBUG_printf(("4http_set_credentials: SSLCopyDistinguishedNames, error=%d", | |
3755 | (int)error)); | |
3756 | return (error); | |
3757 | } | |
3758 | ||
3759 | /* | |
3760 | * Create a query which will return all identities that can sign and match | |
3761 | * the passed in policy. | |
3762 | */ | |
3763 | ||
3764 | query = CFDictionaryCreate(NULL, | |
3765 | (const void**)(&keys[0]), | |
3766 | (const void**)(&values[0]), | |
3767 | sizeof(keys) / sizeof(keys[0]), | |
3768 | &kCFTypeDictionaryKeyCallBacks, | |
3769 | &kCFTypeDictionaryValueCallBacks); | |
3770 | if (query) | |
3771 | { | |
3772 | error = SecItemCopyMatching(query, &matches); | |
3773 | DEBUG_printf(("4http_set_credentials: SecItemCopyMatching, error=%d", | |
3774 | (int)error)); | |
3775 | CFRelease(query); | |
3776 | } | |
3777 | ||
3778 | if (matches) | |
3779 | CFRelease(matches); | |
3780 | ||
3781 | if (dn_array) | |
3782 | CFRelease(dn_array); | |
3783 | } | |
3784 | # endif /* HAVE_SECPOLICYCREATESSL */ | |
3785 | ||
3786 | if (credentials) | |
3787 | { | |
3788 | error = SSLSetCertificate(http->tls, credentials); | |
3789 | DEBUG_printf(("4http_set_credentials: SSLSetCertificate, error=%d", | |
3790 | (int)error)); | |
3791 | } | |
3792 | else | |
3793 | DEBUG_puts("4http_set_credentials: No credentials to set."); | |
3794 | ||
3795 | return (error); | |
7cf5915e | 3796 | } |
82f97232 | 3797 | # endif /* HAVE_CDSASSL && HAVE_SECCERTIFICATECOPYDATA */ |
9b66acc5 | 3798 | #endif /* HAVE_SSL */ |
7cf5915e MS |
3799 | |
3800 | ||
85dda01c MS |
3801 | /* |
3802 | * 'http_set_timeout()' - Set the socket timeout values. | |
3803 | */ | |
3804 | ||
3805 | static void | |
3806 | http_set_timeout(int fd, /* I - File descriptor */ | |
3807 | double timeout) /* I - Timeout in seconds */ | |
3808 | { | |
3809 | #ifdef WIN32 | |
3810 | DWORD tv = (DWORD)(timeout * 1000); | |
3811 | /* Timeout in milliseconds */ | |
3812 | ||
3813 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv)); | |
3814 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv)); | |
3815 | ||
3816 | #else | |
3817 | struct timeval tv; /* Timeout in secs and usecs */ | |
3818 | ||
3819 | tv.tv_sec = (int)timeout; | |
3820 | tv.tv_usec = (int)(1000000 * fmod(timeout, 1.0)); | |
3821 | ||
3822 | setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); | |
3823 | setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); | |
3824 | #endif /* WIN32 */ | |
3825 | } | |
3826 | ||
3827 | ||
3828 | /* | |
3829 | * 'http_set_wait()' - Set the default wait value for reads. | |
3830 | */ | |
3831 | ||
3832 | static void | |
3833 | http_set_wait(http_t *http) /* I - Connection to server */ | |
3834 | { | |
3835 | if (http->blocking) | |
3836 | { | |
3837 | http->wait_value = (int)(http->timeout_value * 1000); | |
3838 | ||
3839 | if (http->wait_value <= 0) | |
3840 | http->wait_value = 60000; | |
3841 | } | |
3842 | else | |
3843 | http->wait_value = 10000; | |
3844 | } | |
3845 | ||
3846 | ||
9b66acc5 | 3847 | #ifdef HAVE_SSL |
ef416fc2 | 3848 | /* |
3849 | * 'http_setup_ssl()' - Set up SSL/TLS support on a connection. | |
3850 | */ | |
3851 | ||
a4845881 | 3852 | static int /* O - 0 on success, -1 on failure */ |
568fa3fa | 3853 | http_setup_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 3854 | { |
7cf5915e MS |
3855 | _cups_globals_t *cg = _cupsGlobals(); |
3856 | /* Pointer to library globals */ | |
3857 | int any_root; /* Allow any root */ | |
3858 | ||
ef416fc2 | 3859 | # ifdef HAVE_LIBSSL |
a4845881 MS |
3860 | SSL_CTX *context; /* Context for encryption */ |
3861 | BIO *bio; /* BIO data */ | |
3862 | const char *message = NULL;/* Error message */ | |
ef416fc2 | 3863 | # elif defined(HAVE_GNUTLS) |
a4845881 | 3864 | int status; /* Status of handshake */ |
ef416fc2 | 3865 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 3866 | /* TLS credentials */ |
ef416fc2 | 3867 | # elif defined(HAVE_CDSASSL) |
a4845881 MS |
3868 | OSStatus error; /* Error code */ |
3869 | char *hostname; /* Hostname */ | |
3870 | const char *message = NULL;/* Error message */ | |
82f97232 | 3871 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
a4845881 MS |
3872 | cups_array_t *credentials; /* Credentials array */ |
3873 | cups_array_t *names; /* CUPS distinguished names */ | |
3874 | CFArrayRef dn_array; /* CF distinguished names array */ | |
3875 | CFIndex count; /* Number of credentials */ | |
3876 | CFDataRef data; /* Certificate data */ | |
3877 | int i; /* Looping var */ | |
3878 | http_credential_t *credential; /* Credential data */ | |
82f97232 | 3879 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
cc754834 | 3880 | # elif defined(HAVE_SSPISSL) |
a4845881 MS |
3881 | TCHAR username[256]; /* Username returned from GetUserName() */ |
3882 | TCHAR commonName[256];/* Common name for certificate */ | |
3883 | DWORD dwSize; /* 32 bit size */ | |
ef416fc2 | 3884 | # endif /* HAVE_LIBSSL */ |
3885 | ||
3886 | ||
e07d4801 | 3887 | DEBUG_printf(("7http_setup_ssl(http=%p)", http)); |
ef416fc2 | 3888 | |
7cf5915e MS |
3889 | /* |
3890 | * Always allow self-signed certificates for the local loopback address... | |
3891 | */ | |
3892 | ||
3893 | if (httpAddrLocalhost(http->hostaddr)) | |
3894 | any_root = 1; | |
3895 | else | |
3896 | any_root = cg->any_root; | |
3897 | ||
ef416fc2 | 3898 | # ifdef HAVE_LIBSSL |
a4845881 MS |
3899 | (void)any_root; |
3900 | ||
ef416fc2 | 3901 | context = SSL_CTX_new(SSLv23_client_method()); |
3902 | ||
3903 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
3904 | ||
411affcf | 3905 | bio = BIO_new(_httpBIOMethods()); |
3906 | BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)http); | |
3907 | ||
7cf5915e | 3908 | http->tls = SSL_new(context); |
a4845881 | 3909 | SSL_set_bio(http->tls, bio, bio); |
ef416fc2 | 3910 | |
7cf5915e | 3911 | if (SSL_connect(http->tls) != 1) |
ef416fc2 | 3912 | { |
ef416fc2 | 3913 | unsigned long error; /* Error code */ |
3914 | ||
3915 | while ((error = ERR_get_error()) != 0) | |
a4845881 MS |
3916 | { |
3917 | message = ERR_error_string(error, NULL); | |
3918 | DEBUG_printf(("8http_setup_ssl: %s", message)); | |
3919 | } | |
ef416fc2 | 3920 | |
3921 | SSL_CTX_free(context); | |
7cf5915e MS |
3922 | SSL_free(http->tls); |
3923 | http->tls = NULL; | |
ef416fc2 | 3924 | |
3925 | # ifdef WIN32 | |
3926 | http->error = WSAGetLastError(); | |
3927 | # else | |
3928 | http->error = errno; | |
3929 | # endif /* WIN32 */ | |
3930 | http->status = HTTP_ERROR; | |
3931 | ||
a4845881 MS |
3932 | if (!message) |
3933 | message = _("Unable to establish a secure connection to host."); | |
3934 | ||
3935 | _cupsSetError(IPP_PKI_ERROR, message, 1); | |
3936 | ||
3937 | return (-1); | |
ef416fc2 | 3938 | } |
3939 | ||
3940 | # elif defined(HAVE_GNUTLS) | |
83e08001 MS |
3941 | (void)any_root; |
3942 | ||
ef416fc2 | 3943 | credentials = (gnutls_certificate_client_credentials *) |
3944 | malloc(sizeof(gnutls_certificate_client_credentials)); | |
3945 | if (credentials == NULL) | |
3946 | { | |
a4845881 MS |
3947 | DEBUG_printf(("8http_setup_ssl: Unable to allocate credentials: %s", |
3948 | strerror(errno))); | |
3949 | http->error = errno; | |
ef416fc2 | 3950 | http->status = HTTP_ERROR; |
a4845881 | 3951 | _cupsSetHTTPError(HTTP_ERROR); |
ef416fc2 | 3952 | |
3953 | return (-1); | |
3954 | } | |
3955 | ||
3956 | gnutls_certificate_allocate_credentials(credentials); | |
3957 | ||
7cf5915e MS |
3958 | gnutls_init(&http->tls, GNUTLS_CLIENT); |
3959 | gnutls_set_default_priority(http->tls); | |
a4845881 | 3960 | gnutls_server_name_set(http->tls, GNUTLS_NAME_DNS, http->hostname, strlen(http->hostname)); |
7cf5915e MS |
3961 | gnutls_credentials_set(http->tls, GNUTLS_CRD_CERTIFICATE, *credentials); |
3962 | gnutls_transport_set_ptr(http->tls, (gnutls_transport_ptr)http); | |
3963 | gnutls_transport_set_pull_function(http->tls, _httpReadGNUTLS); | |
3964 | gnutls_transport_set_push_function(http->tls, _httpWriteGNUTLS); | |
ef416fc2 | 3965 | |
a4845881 | 3966 | while ((status = gnutls_handshake(http->tls)) != GNUTLS_E_SUCCESS) |
ef416fc2 | 3967 | { |
a4845881 MS |
3968 | DEBUG_printf(("8http_setup_ssl: gnutls_handshake returned %d (%s)", |
3969 | status, gnutls_strerror(status))); | |
ef416fc2 | 3970 | |
a4845881 MS |
3971 | if (gnutls_error_is_fatal(status)) |
3972 | { | |
3973 | http->error = EIO; | |
3974 | http->status = HTTP_ERROR; | |
85b5d1df | 3975 | |
a4845881 MS |
3976 | _cupsSetError(IPP_PKI_ERROR, gnutls_strerror(status), 0); |
3977 | ||
3978 | gnutls_deinit(http->tls); | |
3979 | gnutls_certificate_free_credentials(*credentials); | |
3980 | free(credentials); | |
3981 | http->tls = NULL; | |
3982 | ||
3983 | return (-1); | |
3984 | } | |
ef416fc2 | 3985 | } |
3986 | ||
7cf5915e | 3987 | http->tls_credentials = credentials; |
ef416fc2 | 3988 | |
3989 | # elif defined(HAVE_CDSASSL) | |
7cf5915e | 3990 | if ((error = SSLNewContext(false, &http->tls))) |
e53920b9 | 3991 | { |
a4845881 | 3992 | http->error = errno; |
89d46774 | 3993 | http->status = HTTP_ERROR; |
a4845881 | 3994 | _cupsSetHTTPError(HTTP_ERROR); |
e53920b9 | 3995 | |
89d46774 | 3996 | return (-1); |
e53920b9 | 3997 | } |
ef416fc2 | 3998 | |
7cf5915e MS |
3999 | error = SSLSetConnection(http->tls, http); |
4000 | DEBUG_printf(("4http_setup_ssl: SSLSetConnection, error=%d", (int)error)); | |
4001 | ||
4002 | if (!error) | |
4003 | { | |
4004 | error = SSLSetIOFuncs(http->tls, _httpReadCDSA, _httpWriteCDSA); | |
4005 | DEBUG_printf(("4http_setup_ssl: SSLSetIOFuncs, error=%d", (int)error)); | |
4006 | } | |
4007 | ||
7cf5915e MS |
4008 | if (!error) |
4009 | { | |
4010 | error = SSLSetAllowsAnyRoot(http->tls, any_root); | |
4011 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsAnyRoot(%d), error=%d", | |
4012 | any_root, (int)error)); | |
4013 | } | |
89d46774 | 4014 | |
4015 | if (!error) | |
7cf5915e MS |
4016 | { |
4017 | error = SSLSetAllowsExpiredCerts(http->tls, cg->expired_certs); | |
4018 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsExpiredCerts(%d), error=%d", | |
4019 | cg->expired_certs, (int)error)); | |
4020 | } | |
89d46774 | 4021 | |
ef416fc2 | 4022 | if (!error) |
7cf5915e MS |
4023 | { |
4024 | error = SSLSetAllowsExpiredRoots(http->tls, cg->expired_root); | |
4025 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsExpiredRoots(%d), error=%d", | |
4026 | cg->expired_root, (int)error)); | |
4027 | } | |
ef416fc2 | 4028 | |
771bd8cb MS |
4029 | # ifdef HAVE_SSLSETPROTOCOLVERSIONMAX |
4030 | if (!error) | |
4031 | { | |
4032 | error = SSLSetProtocolVersionMax(http->tls, kTLSProtocol1); | |
4033 | DEBUG_printf(("4http_setup_ssl: SSLSetProtocolVersionMax(kTLSProtocol1), " | |
4034 | "error=%d", (int)error)); | |
4035 | } | |
4036 | # endif /* HAVE_SSLSETPROTOCOLVERSIONMAX */ | |
4037 | ||
10ddcf65 MS |
4038 | /* |
4039 | * In general, don't verify certificates since things like the common name | |
4040 | * often do not match... | |
4041 | */ | |
4042 | ||
4043 | if (!error) | |
4044 | { | |
4045 | error = SSLSetEnableCertVerify(http->tls, false); | |
4046 | DEBUG_printf(("4http_setup_ssl: SSLSetEnableCertVerify, error=%d", | |
4047 | (int)error)); | |
4048 | } | |
4049 | ||
82f97232 | 4050 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
ef416fc2 | 4051 | if (!error) |
7cf5915e MS |
4052 | { |
4053 | if (cg->client_cert_cb) | |
4054 | { | |
4055 | error = SSLSetSessionOption(http->tls, | |
4056 | kSSLSessionOptionBreakOnCertRequested, true); | |
4057 | DEBUG_printf(("4http_setup_ssl: kSSLSessionOptionBreakOnCertRequested, " | |
4058 | "error=%d", (int)error)); | |
4059 | } | |
4060 | else | |
4061 | { | |
4062 | error = http_set_credentials(http); | |
4063 | DEBUG_printf(("4http_setup_ssl: http_set_credentials, error=%d", | |
4064 | (int)error)); | |
4065 | } | |
4066 | } | |
4067 | ||
4068 | /* | |
4069 | * If there's a server certificate callback installed let it evaluate the | |
4070 | * certificate(s) during the handshake... | |
4071 | */ | |
4072 | ||
4073 | if (!error && cg->server_cert_cb != NULL) | |
4074 | { | |
10ddcf65 MS |
4075 | error = SSLSetSessionOption(http->tls, |
4076 | kSSLSessionOptionBreakOnServerAuth, true); | |
4077 | DEBUG_printf(("4http_setup_ssl: kSSLSessionOptionBreakOnServerAuth, " | |
4078 | "error=%d", (int)error)); | |
7cf5915e | 4079 | } |
82f97232 | 4080 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
ef416fc2 | 4081 | |
10ddcf65 MS |
4082 | /* |
4083 | * Let the server know which hostname/domain we are trying to connect to | |
4084 | * in case it wants to serve up a certificate with a matching common name. | |
4085 | */ | |
4086 | ||
ed486911 | 4087 | if (!error) |
7cf5915e MS |
4088 | { |
4089 | hostname = httpAddrLocalhost(http->hostaddr) ? "localhost" : http->hostname; | |
4090 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); | |
4091 | ||
4092 | DEBUG_printf(("4http_setup_ssl: SSLSetPeerDomainName, error=%d", | |
4093 | (int)error)); | |
4094 | } | |
ed486911 | 4095 | |
ef416fc2 | 4096 | if (!error) |
b423cd4c | 4097 | { |
7cf5915e MS |
4098 | int done = 0; /* Are we done yet? */ |
4099 | ||
4100 | while (!error && !done) | |
4101 | { | |
4102 | error = SSLHandshake(http->tls); | |
4103 | ||
85dda01c | 4104 | DEBUG_printf(("4http_setup_ssl: SSLHandshake returned %d.", (int)error)); |
7cf5915e MS |
4105 | |
4106 | switch (error) | |
4107 | { | |
4108 | case noErr : | |
4109 | done = 1; | |
4110 | break; | |
4111 | ||
4112 | case errSSLWouldBlock : | |
4113 | usleep(1000); | |
4114 | break; | |
4115 | ||
82f97232 | 4116 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
7cf5915e MS |
4117 | case errSSLServerAuthCompleted : |
4118 | error = 0; | |
4119 | if (cg->server_cert_cb) | |
4120 | { | |
4121 | error = httpCopyCredentials(http, &credentials); | |
4122 | if (!error) | |
4123 | { | |
4124 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
4125 | cg->server_cert_data); | |
4126 | httpFreeCredentials(credentials); | |
4127 | } | |
4128 | ||
10ddcf65 MS |
4129 | DEBUG_printf(("4http_setup_ssl: Server certificate callback " |
4130 | "returned %d.", (int)error)); | |
7cf5915e MS |
4131 | } |
4132 | break; | |
4133 | ||
4134 | case errSSLClientCertRequested : | |
4135 | error = 0; | |
4136 | ||
4137 | if (cg->client_cert_cb) | |
4138 | { | |
4139 | names = NULL; | |
82f97232 | 4140 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && |
7cf5915e MS |
4141 | dn_array) |
4142 | { | |
4143 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
4144 | { | |
4145 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
4146 | { | |
4147 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
4148 | ||
4149 | if ((credential = malloc(sizeof(*credential)))) | |
4150 | { | |
4151 | credential->datalen = CFDataGetLength(data); | |
4152 | if ((credential->data = malloc(credential->datalen))) | |
4153 | { | |
82f97232 | 4154 | memcpy((void *)credential->data, CFDataGetBytePtr(data), |
7cf5915e MS |
4155 | credential->datalen); |
4156 | cupsArrayAdd(names, credential); | |
4157 | } | |
4158 | } | |
4159 | } | |
4160 | } | |
4161 | ||
4162 | CFRelease(dn_array); | |
4163 | } | |
4164 | ||
4165 | if (!error) | |
4166 | { | |
82f97232 | 4167 | error = (cg->client_cert_cb)(http, http->tls, names, |
7cf5915e MS |
4168 | cg->client_cert_data); |
4169 | ||
85dda01c | 4170 | DEBUG_printf(("4http_setup_ssl: Client certificate callback " |
7cf5915e MS |
4171 | "returned %d.", (int)error)); |
4172 | } | |
4173 | ||
4174 | httpFreeCredentials(names); | |
4175 | } | |
4176 | break; | |
82f97232 | 4177 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
7cf5915e MS |
4178 | |
4179 | case errSSLUnknownRootCert : | |
4180 | message = _("Unable to establish a secure connection to host " | |
4181 | "(untrusted certificate)."); | |
4182 | break; | |
4183 | ||
4184 | case errSSLNoRootCert : | |
4185 | message = _("Unable to establish a secure connection to host " | |
4186 | "(self-signed certificate)."); | |
4187 | break; | |
4188 | ||
4189 | case errSSLCertExpired : | |
4190 | message = _("Unable to establish a secure connection to host " | |
4191 | "(expired certificate)."); | |
4192 | break; | |
4193 | ||
4194 | case errSSLCertNotYetValid : | |
4195 | message = _("Unable to establish a secure connection to host " | |
4196 | "(certificate not yet valid)."); | |
4197 | break; | |
4198 | ||
4199 | case errSSLHostNameMismatch : | |
4200 | message = _("Unable to establish a secure connection to host " | |
4201 | "(host name mismatch)."); | |
4202 | break; | |
4203 | ||
4204 | case errSSLXCertChainInvalid : | |
4205 | message = _("Unable to establish a secure connection to host " | |
4206 | "(certificate chain invalid)."); | |
4207 | break; | |
4208 | ||
4209 | case errSSLConnectionRefused : | |
4210 | message = _("Unable to establish a secure connection to host " | |
4211 | "(peer dropped connection before responding)."); | |
4212 | break; | |
4213 | ||
4214 | default : | |
4215 | break; | |
4216 | } | |
4217 | } | |
b423cd4c | 4218 | } |
ef416fc2 | 4219 | |
89d46774 | 4220 | if (error) |
ef416fc2 | 4221 | { |
4222 | http->error = error; | |
4223 | http->status = HTTP_ERROR; | |
7cf5915e MS |
4224 | errno = ECONNREFUSED; |
4225 | ||
4226 | SSLDisposeContext(http->tls); | |
4227 | http->tls = NULL; | |
ef416fc2 | 4228 | |
7cf5915e MS |
4229 | /* |
4230 | * If an error string wasn't set by the callbacks use a generic one... | |
4231 | */ | |
4232 | ||
4233 | if (!message) | |
4234 | #ifdef HAVE_CSSMERRORSTRING | |
4235 | message = cssmErrorString(error); | |
4236 | #else | |
4237 | message = _("Unable to establish a secure connection to host."); | |
4238 | #endif /* HAVE_CSSMERRORSTRING */ | |
ef416fc2 | 4239 | |
7cf5915e | 4240 | _cupsSetError(IPP_PKI_ERROR, message, 1); |
ef416fc2 | 4241 | |
cc754834 MS |
4242 | return (-1); |
4243 | } | |
7cf5915e | 4244 | |
cc754834 | 4245 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 4246 | http->tls = _sspiAlloc(); |
cc754834 | 4247 | |
7cf5915e | 4248 | if (!http->tls) |
a4845881 | 4249 | { |
83e08001 | 4250 | _cupsSetHTTPError(HTTP_ERROR); |
cc754834 | 4251 | return (-1); |
83e08001 | 4252 | } |
cc754834 | 4253 | |
7cf5915e MS |
4254 | http->tls->sock = http->fd; |
4255 | dwSize = sizeof(username) / sizeof(TCHAR); | |
cc754834 MS |
4256 | GetUserName(username, &dwSize); |
4257 | _sntprintf_s(commonName, sizeof(commonName) / sizeof(TCHAR), | |
4258 | sizeof(commonName) / sizeof(TCHAR), TEXT("CN=%s"), username); | |
4259 | ||
7cf5915e MS |
4260 | if (!_sspiGetCredentials(http->tls_credentials, L"ClientContainer", |
4261 | commonName, FALSE)) | |
cc754834 | 4262 | { |
7cf5915e MS |
4263 | _sspiFree(http->tls_credentials); |
4264 | http->tls_credentials = NULL; | |
a4845881 MS |
4265 | |
4266 | http->error = EIO; | |
4267 | http->status = HTTP_ERROR; | |
4268 | ||
4269 | _cupsSetError(IPP_PKI_ERROR, | |
4270 | _("Unable to establish a secure connection to host."), 1); | |
4271 | ||
cc754834 MS |
4272 | return (-1); |
4273 | } | |
4274 | ||
83e08001 | 4275 | _sspiSetAllowsAnyRoot(http->tls_credentials, any_root); |
7cf5915e | 4276 | _sspiSetAllowsExpiredCerts(http->tls_credentials, TRUE); |
cc754834 | 4277 | |
7cf5915e | 4278 | if (!_sspiConnect(http->tls_credentials, http->hostname)) |
cc754834 | 4279 | { |
7cf5915e MS |
4280 | _sspiFree(http->tls_credentials); |
4281 | http->tls_credentials = NULL; | |
a4845881 MS |
4282 | |
4283 | http->error = EIO; | |
4284 | http->status = HTTP_ERROR; | |
4285 | ||
4286 | _cupsSetError(IPP_PKI_ERROR, | |
4287 | _("Unable to establish a secure connection to host."), 1); | |
4288 | ||
ef416fc2 | 4289 | return (-1); |
4290 | } | |
4291 | # endif /* HAVE_CDSASSL */ | |
4292 | ||
ef416fc2 | 4293 | return (0); |
4294 | } | |
ef416fc2 | 4295 | |
4296 | ||
ef416fc2 | 4297 | /* |
4298 | * 'http_shutdown_ssl()' - Shut down SSL/TLS on a connection. | |
4299 | */ | |
4300 | ||
4301 | static void | |
568fa3fa | 4302 | http_shutdown_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 4303 | { |
4304 | # ifdef HAVE_LIBSSL | |
89d46774 | 4305 | SSL_CTX *context; /* Context for encryption */ |
ef416fc2 | 4306 | |
a4845881 | 4307 | context = SSL_get_SSL_CTX(http->tls); |
ef416fc2 | 4308 | |
a4845881 | 4309 | SSL_shutdown(http->tls); |
ef416fc2 | 4310 | SSL_CTX_free(context); |
a4845881 | 4311 | SSL_free(http->tls); |
ef416fc2 | 4312 | |
4313 | # elif defined(HAVE_GNUTLS) | |
ef416fc2 | 4314 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 4315 | /* TLS credentials */ |
ef416fc2 | 4316 | |
7cf5915e | 4317 | credentials = (gnutls_certificate_client_credentials *)(http->tls_credentials); |
ef416fc2 | 4318 | |
7cf5915e MS |
4319 | gnutls_bye(http->tls, GNUTLS_SHUT_RDWR); |
4320 | gnutls_deinit(http->tls); | |
ef416fc2 | 4321 | gnutls_certificate_free_credentials(*credentials); |
4322 | free(credentials); | |
ef416fc2 | 4323 | |
4324 | # elif defined(HAVE_CDSASSL) | |
7cf5915e | 4325 | while (SSLClose(http->tls) == errSSLWouldBlock) |
b423cd4c | 4326 | usleep(1000); |
4327 | ||
7cf5915e | 4328 | SSLDisposeContext(http->tls); |
89d46774 | 4329 | |
7cf5915e MS |
4330 | if (http->tls_credentials) |
4331 | CFRelease(http->tls_credentials); | |
89d46774 | 4332 | |
cc754834 | 4333 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 4334 | _sspiFree(http->tls_credentials); |
ef416fc2 | 4335 | # endif /* HAVE_LIBSSL */ |
4336 | ||
7cf5915e MS |
4337 | http->tls = NULL; |
4338 | http->tls_credentials = NULL; | |
ef416fc2 | 4339 | } |
4340 | #endif /* HAVE_SSL */ | |
4341 | ||
4342 | ||
4343 | #ifdef HAVE_SSL | |
4344 | /* | |
4345 | * 'http_upgrade()' - Force upgrade to TLS encryption. | |
4346 | */ | |
4347 | ||
89d46774 | 4348 | static int /* O - Status of connection */ |
568fa3fa | 4349 | http_upgrade(http_t *http) /* I - Connection to server */ |
ef416fc2 | 4350 | { |
89d46774 | 4351 | int ret; /* Return value */ |
4352 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4353 | |
4354 | ||
e07d4801 | 4355 | DEBUG_printf(("7http_upgrade(%p)", http)); |
ef416fc2 | 4356 | |
85b5d1df MS |
4357 | /* |
4358 | * Flush the connection to make sure any previous "Upgrade" message | |
4359 | * has been read. | |
4360 | */ | |
4361 | ||
4362 | httpFlush(http); | |
4363 | ||
ef416fc2 | 4364 | /* |
4365 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4366 | * request without interfering with the existing request data... | |
4367 | */ | |
4368 | ||
4369 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4370 | ||
4371 | /* | |
4372 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4373 | * encryption on the link... | |
4374 | */ | |
4375 | ||
f7deaa1a | 4376 | http->field_authorization = NULL; /* Don't free the auth string */ |
4377 | ||
b86bc4cf | 4378 | httpClearFields(http); |
4379 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
7cf5915e | 4380 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2, TLS/1.1, TLS/1.0, SSL/3.0"); |
ef416fc2 | 4381 | |
b86bc4cf | 4382 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4383 | { |
4384 | /* | |
4385 | * Wait for the secure connection... | |
4386 | */ | |
4387 | ||
b86bc4cf | 4388 | while (httpUpdate(http) == HTTP_CONTINUE); |
ef416fc2 | 4389 | } |
4390 | ||
ef416fc2 | 4391 | /* |
b86bc4cf | 4392 | * Restore the HTTP request data... |
ef416fc2 | 4393 | */ |
4394 | ||
b86bc4cf | 4395 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4396 | http->data_encoding = myhttp.data_encoding; |
4397 | http->data_remaining = myhttp.data_remaining; | |
4398 | http->_data_remaining = myhttp._data_remaining; | |
4399 | http->expect = myhttp.expect; | |
4400 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4401 | http->digest_tries = myhttp.digest_tries; |
ef416fc2 | 4402 | |
4403 | /* | |
4404 | * See if we actually went secure... | |
4405 | */ | |
4406 | ||
4407 | if (!http->tls) | |
4408 | { | |
4409 | /* | |
4410 | * Server does not support HTTP upgrade... | |
4411 | */ | |
4412 | ||
e07d4801 | 4413 | DEBUG_puts("8http_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4414 | |
4415 | # ifdef WIN32 | |
4416 | closesocket(http->fd); | |
4417 | # else | |
4418 | close(http->fd); | |
4419 | # endif | |
4420 | ||
4421 | http->fd = -1; | |
4422 | ||
4423 | return (-1); | |
4424 | } | |
4425 | else | |
4426 | return (ret); | |
4427 | } | |
4428 | #endif /* HAVE_SSL */ | |
4429 | ||
4430 | ||
ef416fc2 | 4431 | /* |
4432 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4433 | */ | |
ef55b745 | 4434 | |
ef416fc2 | 4435 | static int /* O - Number of bytes written */ |
568fa3fa | 4436 | http_write(http_t *http, /* I - Connection to server */ |
f11a948a MS |
4437 | const char *buffer, /* I - Buffer for data */ |
4438 | int length) /* I - Number of bytes to write */ | |
ef416fc2 | 4439 | { |
4440 | int tbytes, /* Total bytes sent */ | |
4441 | bytes; /* Bytes sent */ | |
4442 | ||
4443 | ||
f8b3a85b MS |
4444 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=%d)", http, buffer, |
4445 | length)); | |
f11a948a MS |
4446 | http->error = 0; |
4447 | tbytes = 0; | |
ef416fc2 | 4448 | |
4449 | while (length > 0) | |
4450 | { | |
85dda01c MS |
4451 | if (http->timeout_cb) |
4452 | { | |
4453 | #ifdef HAVE_POLL | |
4454 | struct pollfd pfd; /* Polled file descriptor */ | |
4455 | #else | |
4456 | fd_set output_set; /* Output ready for write? */ | |
4457 | struct timeval timeout; /* Timeout value */ | |
4458 | #endif /* HAVE_POLL */ | |
4459 | int nfds; /* Result from select()/poll() */ | |
4460 | ||
4461 | do | |
4462 | { | |
4463 | #ifdef HAVE_POLL | |
4464 | pfd.fd = http->fd; | |
4465 | pfd.events = POLLOUT; | |
4466 | ||
4467 | while ((nfds = poll(&pfd, 1, http->wait_value)) < 0 && | |
4468 | (errno == EINTR || errno == EAGAIN)); | |
4469 | ||
4470 | #else | |
4471 | do | |
4472 | { | |
4473 | FD_ZERO(&output_set); | |
4474 | FD_SET(http->fd, &output_set); | |
4475 | ||
4476 | timeout.tv_sec = http->wait_value / 1000; | |
4477 | timeout.tv_usec = 1000 * (http->wait_value % 1000); | |
4478 | ||
4479 | nfds = select(http->fd + 1, NULL, &output_set, NULL, &timeout); | |
4480 | } | |
4481 | # ifdef WIN32 | |
4482 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || | |
4483 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
4484 | # else | |
4485 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); | |
4486 | # endif /* WIN32 */ | |
4487 | #endif /* HAVE_POLL */ | |
4488 | ||
4489 | if (nfds < 0) | |
4490 | { | |
4491 | http->error = errno; | |
4492 | return (-1); | |
4493 | } | |
4494 | else if (nfds == 0 && !(*http->timeout_cb)(http, http->timeout_data)) | |
4495 | { | |
4496 | #ifdef WIN32 | |
83e08001 | 4497 | http->error = WSAEWOULDBLOCK; |
85dda01c MS |
4498 | #else |
4499 | http->error = EWOULDBLOCK; | |
4500 | #endif /* WIN32 */ | |
4501 | return (-1); | |
4502 | } | |
4503 | } | |
4504 | while (nfds <= 0); | |
4505 | } | |
4506 | ||
ef416fc2 | 4507 | #ifdef HAVE_SSL |
4508 | if (http->tls) | |
4509 | bytes = http_write_ssl(http, buffer, length); | |
4510 | else | |
4511 | #endif /* HAVE_SSL */ | |
4512 | bytes = send(http->fd, buffer, length, 0); | |
4513 | ||
4514 | if (bytes < 0) | |
4515 | { | |
4516 | #ifdef WIN32 | |
10d09e33 | 4517 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4518 | continue; |
10d09e33 MS |
4519 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4520 | { | |
4521 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4522 | continue; | |
4523 | ||
4524 | http->error = WSAGetLastError(); | |
4525 | } | |
4526 | else if (WSAGetLastError() != http->error && | |
4527 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4528 | { |
4529 | http->error = WSAGetLastError(); | |
4530 | continue; | |
4531 | } | |
10d09e33 | 4532 | |
ef416fc2 | 4533 | #else |
10d09e33 | 4534 | if (errno == EINTR) |
ef416fc2 | 4535 | continue; |
10d09e33 MS |
4536 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4537 | { | |
4538 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4539 | continue; | |
4540 | else if (!http->timeout_cb && errno == EAGAIN) | |
4541 | continue; | |
4542 | ||
4543 | http->error = errno; | |
4544 | } | |
ef416fc2 | 4545 | else if (errno != http->error && errno != ECONNRESET) |
4546 | { | |
4547 | http->error = errno; | |
4548 | continue; | |
4549 | } | |
4550 | #endif /* WIN32 */ | |
4551 | ||
f8b3a85b MS |
4552 | DEBUG_printf(("3http_write: error writing data (%s).", |
4553 | strerror(http->error))); | |
ef416fc2 | 4554 | |
4555 | return (-1); | |
4556 | } | |
4557 | ||
4558 | buffer += bytes; | |
4559 | tbytes += bytes; | |
4560 | length -= bytes; | |
4561 | } | |
4562 | ||
4563 | #ifdef DEBUG | |
ae71f5de | 4564 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 4565 | #endif /* DEBUG */ |
4566 | ||
f8b3a85b MS |
4567 | DEBUG_printf(("3http_write: Returning %d.", tbytes)); |
4568 | ||
ef416fc2 | 4569 | return (tbytes); |
4570 | } | |
4571 | ||
4572 | ||
4573 | /* | |
4574 | * 'http_write_chunk()' - Write a chunked buffer. | |
4575 | */ | |
4576 | ||
4577 | static int /* O - Number bytes written */ | |
568fa3fa | 4578 | http_write_chunk(http_t *http, /* I - Connection to server */ |
ef416fc2 | 4579 | const char *buffer, /* I - Buffer to write */ |
4580 | int length) /* I - Length of buffer */ | |
4581 | { | |
4582 | char header[255]; /* Chunk header */ | |
4583 | int bytes; /* Bytes written */ | |
4584 | ||
f11a948a | 4585 | |
e07d4801 | 4586 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=%d)", |
ef416fc2 | 4587 | http, buffer, length)); |
4588 | ||
4589 | /* | |
4590 | * Write the chunk header, data, and trailer. | |
4591 | */ | |
4592 | ||
4593 | sprintf(header, "%x\r\n", length); | |
b86bc4cf | 4594 | if (http_write(http, header, (int)strlen(header)) < 0) |
ef416fc2 | 4595 | { |
e07d4801 | 4596 | DEBUG_puts("8http_write_chunk: http_write of length failed!"); |
ef416fc2 | 4597 | return (-1); |
4598 | } | |
4599 | ||
4600 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4601 | { | |
e07d4801 | 4602 | DEBUG_puts("8http_write_chunk: http_write of buffer failed!"); |
ef416fc2 | 4603 | return (-1); |
4604 | } | |
4605 | ||
4606 | if (http_write(http, "\r\n", 2) < 0) | |
4607 | { | |
e07d4801 | 4608 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed!"); |
ef416fc2 | 4609 | return (-1); |
4610 | } | |
4611 | ||
4612 | return (bytes); | |
4613 | } | |
4614 | ||
4615 | ||
4616 | #ifdef HAVE_SSL | |
4617 | /* | |
4618 | * 'http_write_ssl()' - Write to a SSL/TLS connection. | |
4619 | */ | |
4620 | ||
4621 | static int /* O - Bytes written */ | |
568fa3fa | 4622 | http_write_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 4623 | const char *buf, /* I - Buffer holding data */ |
4624 | int len) /* I - Length of buffer */ | |
4625 | { | |
f8b3a85b MS |
4626 | ssize_t result; /* Return value */ |
4627 | ||
4628 | ||
4629 | DEBUG_printf(("2http_write_ssl(http=%p, buf=%p, len=%d)", http, buf, len)); | |
4630 | ||
ef416fc2 | 4631 | # if defined(HAVE_LIBSSL) |
f8b3a85b | 4632 | result = SSL_write((SSL *)(http->tls), buf, len); |
ef416fc2 | 4633 | |
4634 | # elif defined(HAVE_GNUTLS) | |
7cf5915e | 4635 | result = gnutls_record_send(http->tls, buf, len); |
ef55b745 MS |
4636 | |
4637 | if (result < 0 && !errno) | |
4638 | { | |
4639 | /* | |
4640 | * Convert GNU TLS error to errno value... | |
4641 | */ | |
4642 | ||
4643 | switch (result) | |
4644 | { | |
4645 | case GNUTLS_E_INTERRUPTED : | |
4646 | errno = EINTR; | |
4647 | break; | |
4648 | ||
4649 | case GNUTLS_E_AGAIN : | |
4650 | errno = EAGAIN; | |
4651 | break; | |
4652 | ||
4653 | default : | |
4654 | errno = EPIPE; | |
4655 | break; | |
4656 | } | |
4657 | ||
4658 | result = -1; | |
4659 | } | |
4660 | ||
ef416fc2 | 4661 | # elif defined(HAVE_CDSASSL) |
4662 | OSStatus error; /* Error info */ | |
4663 | size_t processed; /* Number of bytes processed */ | |
4664 | ||
4665 | ||
7cf5915e | 4666 | error = SSLWrite(http->tls, buf, len, &processed); |
ef416fc2 | 4667 | |
fa73b229 | 4668 | switch (error) |
ef416fc2 | 4669 | { |
fa73b229 | 4670 | case 0 : |
4671 | result = (int)processed; | |
4672 | break; | |
84315f46 | 4673 | |
fa73b229 | 4674 | case errSSLWouldBlock : |
b423cd4c | 4675 | if (processed) |
4676 | result = (int)processed; | |
4677 | else | |
4678 | { | |
4679 | result = -1; | |
ef55b745 | 4680 | errno = EINTR; |
b423cd4c | 4681 | } |
fa73b229 | 4682 | break; |
84315f46 MS |
4683 | |
4684 | case errSSLClosedGraceful : | |
fa73b229 | 4685 | default : |
84315f46 MS |
4686 | if (processed) |
4687 | result = (int)processed; | |
4688 | else | |
4689 | { | |
4690 | result = -1; | |
4691 | errno = EPIPE; | |
4692 | } | |
fa73b229 | 4693 | break; |
ef416fc2 | 4694 | } |
cc754834 | 4695 | # elif defined(HAVE_SSPISSL) |
84315f46 | 4696 | return _sspiWrite((_sspi_struct_t *)http->tls, (void *)buf, len); |
ef416fc2 | 4697 | # endif /* HAVE_LIBSSL */ |
f8b3a85b MS |
4698 | |
4699 | DEBUG_printf(("3http_write_ssl: Returning %d.", (int)result)); | |
4700 | ||
4701 | return ((int)result); | |
ef416fc2 | 4702 | } |
4703 | #endif /* HAVE_SSL */ | |
4704 | ||
4705 | ||
4706 | /* | |
b19ccc9e | 4707 | * End of "$Id: http.c 7850 2008-08-20 00:07:25Z mike $". |
ef416fc2 | 4708 | */ |