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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: http.c 7850 2008-08-20 00:07:25Z mike $" |
ef416fc2 | 3 | * |
71e16022 | 4 | * HTTP routines for CUPS. |
ef416fc2 | 5 | * |
0268488e | 6 | * Copyright 2007-2011 by Apple Inc. |
b86bc4cf | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
f7deaa1a | 9 | * This file contains Kerberos support code, copyright 2006 by |
10 | * Jelmer Vernooij. | |
11 | * | |
ef416fc2 | 12 | * These coded instructions, statements, and computer programs are the |
bc44d920 | 13 | * property of Apple Inc. and are protected by Federal copyright |
14 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
15 | * which should have been included with this file. If this file is | |
16 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 17 | * |
18 | * This file is subject to the Apple OS-Developed Software exception. | |
19 | * | |
20 | * Contents: | |
21 | * | |
7cf5915e MS |
22 | * httpAddCredential() - Allocates and adds a single credential to an |
23 | * array. | |
24 | * _httpBIOMethods() - Get the OpenSSL BIO methods for HTTP | |
25 | * connections. | |
26 | * httpBlocking() - Set blocking/non-blocking behavior on a | |
27 | * connection. | |
28 | * httpCheck() - Check to see if there is a pending response | |
29 | * from the server. | |
30 | * httpClearCookie() - Clear the cookie value(s). | |
31 | * httpClearFields() - Clear HTTP request fields. | |
32 | * httpClose() - Close an HTTP connection. | |
33 | * httpConnect() - Connect to a HTTP server. | |
34 | * httpConnectEncrypt() - Connect to a HTTP server using encryption. | |
35 | * httpCopyCredentials() - Copy the credentials associated with an | |
36 | * encrypted connection. | |
37 | * _httpConvertCredentials() - Convert credentials to the internal format. | |
38 | * _httpCreate() - Create an unconnected HTTP connection. | |
39 | * httpDelete() - Send a DELETE request to the server. | |
40 | * _httpDisconnect() - Disconnect a HTTP connection. | |
41 | * httpEncryption() - Set the required encryption on the link. | |
42 | * httpError() - Get the last error on a connection. | |
43 | * httpFlush() - Flush data from a HTTP connection. | |
44 | * httpFlushWrite() - Flush data in write buffer. | |
45 | * _httpFreeCredentials() - Free internal credentials. | |
46 | * httpFreeCredentials() - Free an array of credentials. | |
47 | * httpGet() - Send a GET request to the server. | |
48 | * httpGetAuthString() - Get the current authorization string. | |
49 | * httpGetBlocking() - Get the blocking/non-block state of a | |
50 | * connection. | |
51 | * httpGetCookie() - Get any cookie data from the response. | |
52 | * httpGetFd() - Get the file descriptor associated with a | |
53 | * connection. | |
54 | * httpGetField() - Get a field value from a request/response. | |
55 | * httpGetLength() - Get the amount of data remaining from the | |
56 | * content-length or transfer-encoding fields. | |
57 | * httpGetLength2() - Get the amount of data remaining from the | |
58 | * content-length or transfer-encoding fields. | |
59 | * httpGetStatus() - Get the status of the last HTTP request. | |
60 | * httpGetSubField() - Get a sub-field value. | |
61 | * httpGetSubField2() - Get a sub-field value. | |
62 | * httpGets() - Get a line of text from a HTTP connection. | |
63 | * httpHead() - Send a HEAD request to the server. | |
64 | * httpInitialize() - Initialize the HTTP interface library and set | |
65 | * the default HTTP proxy (if any). | |
66 | * httpOptions() - Send an OPTIONS request to the server. | |
67 | * _httpPeek() - Peek at data from a HTTP connection. | |
68 | * httpPost() - Send a POST request to the server. | |
69 | * httpPrintf() - Print a formatted string to a HTTP connection. | |
70 | * httpPut() - Send a PUT request to the server. | |
71 | * httpRead() - Read data from a HTTP connection. | |
72 | * httpRead2() - Read data from a HTTP connection. | |
73 | * _httpReadCDSA() - Read function for the CDSA library. | |
74 | * _httpReadGNUTLS() - Read function for the GNU TLS library. | |
75 | * httpReconnect() - Reconnect to a HTTP server. | |
76 | * httpSetAuthString() - Set the current authorization string. | |
77 | * httpSetCredentials() - Set the credentials associated with an | |
78 | * encrypted connection. | |
79 | * httpSetCookie() - Set the cookie value(s). | |
80 | * httpSetExpect() - Set the Expect: header in a request. | |
81 | * httpSetField() - Set the value of an HTTP header. | |
82 | * httpSetLength() - Set the content-length and content-encoding. | |
f228370c | 83 | * httpSetTimeout() - Set read/write timeouts and an optional |
10d09e33 | 84 | * callback. |
7cf5915e | 85 | * httpTrace() - Send an TRACE request to the server. |
e60ec91f MS |
86 | * _httpUpdate() - Update the current HTTP status for incoming |
87 | * data. | |
7cf5915e MS |
88 | * httpUpdate() - Update the current HTTP state for incoming |
89 | * data. | |
90 | * _httpWait() - Wait for data available on a connection (no | |
91 | * flush). | |
92 | * httpWait() - Wait for data available on a connection. | |
93 | * httpWrite() - Write data to a HTTP connection. | |
94 | * httpWrite2() - Write data to a HTTP connection. | |
95 | * _httpWriteCDSA() - Write function for the CDSA library. | |
96 | * _httpWriteGNUTLS() - Write function for the GNU TLS library. | |
97 | * http_bio_ctrl() - Control the HTTP connection. | |
98 | * http_bio_free() - Free OpenSSL data. | |
99 | * http_bio_new() - Initialize an OpenSSL BIO structure. | |
100 | * http_bio_puts() - Send a string for OpenSSL. | |
101 | * http_bio_read() - Read data for OpenSSL. | |
102 | * http_bio_write() - Write data for OpenSSL. | |
103 | * http_debug_hex() - Do a hex dump of a buffer. | |
104 | * http_field() - Return the field index for a field name. | |
105 | * http_read_ssl() - Read from a SSL/TLS connection. | |
106 | * http_locking_cb() - Lock/unlock a thread's mutex. | |
107 | * http_send() - Send a request with all fields and the trailing | |
108 | * blank line. | |
109 | * http_set_credentials() - Set the SSL/TLS credentials. | |
110 | * http_setup_ssl() - Set up SSL/TLS support on a connection. | |
111 | * http_shutdown_ssl() - Shut down SSL/TLS on a connection. | |
112 | * http_threadid_cb() - Return the current thread ID. | |
113 | * http_upgrade() - Force upgrade to TLS encryption. | |
114 | * http_write() - Write a buffer to a HTTP connection. | |
115 | * http_write_chunk() - Write a chunked buffer. | |
116 | * http_write_ssl() - Write to a SSL/TLS connection. | |
ef416fc2 | 117 | */ |
118 | ||
119 | /* | |
120 | * Include necessary headers... | |
121 | */ | |
122 | ||
71e16022 | 123 | #include "cups-private.h" |
ef416fc2 | 124 | #include <fcntl.h> |
cc754834 MS |
125 | #ifdef WIN32 |
126 | # include <tchar.h> | |
127 | #else | |
ef416fc2 | 128 | # include <signal.h> |
129 | # include <sys/time.h> | |
130 | # include <sys/resource.h> | |
cc754834 | 131 | #endif /* WIN32 */ |
f7deaa1a | 132 | #ifdef HAVE_POLL |
133 | # include <sys/poll.h> | |
134 | #endif /* HAVE_POLL */ | |
ef416fc2 | 135 | |
136 | ||
137 | /* | |
138 | * Some operating systems have done away with the Fxxxx constants for | |
139 | * the fcntl() call; this works around that "feature"... | |
140 | */ | |
141 | ||
142 | #ifndef FNONBLK | |
143 | # define FNONBLK O_NONBLOCK | |
144 | #endif /* !FNONBLK */ | |
145 | ||
146 | ||
147 | /* | |
148 | * Local functions... | |
149 | */ | |
150 | ||
ae71f5de MS |
151 | #ifdef DEBUG |
152 | static void http_debug_hex(const char *prefix, const char *buffer, | |
153 | int bytes); | |
154 | #endif /* DEBUG */ | |
ef416fc2 | 155 | static http_field_t http_field(const char *name); |
156 | static int http_send(http_t *http, http_state_t request, | |
157 | const char *uri); | |
ef416fc2 | 158 | static int http_write(http_t *http, const char *buffer, |
159 | int length); | |
160 | static int http_write_chunk(http_t *http, const char *buffer, | |
161 | int length); | |
162 | #ifdef HAVE_SSL | |
163 | static int http_read_ssl(http_t *http, char *buf, int len); | |
82f97232 | 164 | # if defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e | 165 | static int http_set_credentials(http_t *http); |
82f97232 | 166 | # endif /* HAVE_CDSASSL ** HAVE_SECCERTIFICATECOPYDATA */ |
ef416fc2 | 167 | static int http_setup_ssl(http_t *http); |
168 | static void http_shutdown_ssl(http_t *http); | |
169 | static int http_upgrade(http_t *http); | |
170 | static int http_write_ssl(http_t *http, const char *buf, int len); | |
171 | #endif /* HAVE_SSL */ | |
172 | ||
173 | ||
174 | /* | |
175 | * Local globals... | |
176 | */ | |
177 | ||
178 | static const char * const http_fields[] = | |
179 | { | |
180 | "Accept-Language", | |
181 | "Accept-Ranges", | |
182 | "Authorization", | |
183 | "Connection", | |
184 | "Content-Encoding", | |
185 | "Content-Language", | |
186 | "Content-Length", | |
187 | "Content-Location", | |
188 | "Content-MD5", | |
189 | "Content-Range", | |
190 | "Content-Type", | |
191 | "Content-Version", | |
192 | "Date", | |
193 | "Host", | |
194 | "If-Modified-Since", | |
195 | "If-Unmodified-since", | |
196 | "Keep-Alive", | |
197 | "Last-Modified", | |
198 | "Link", | |
199 | "Location", | |
200 | "Range", | |
201 | "Referer", | |
202 | "Retry-After", | |
203 | "Transfer-Encoding", | |
204 | "Upgrade", | |
205 | "User-Agent", | |
206 | "WWW-Authenticate" | |
207 | }; | |
f11a948a MS |
208 | #ifdef DEBUG |
209 | static const char * const http_states[] = | |
210 | { | |
211 | "HTTP_WAITING", | |
212 | "HTTP_OPTIONS", | |
213 | "HTTP_GET", | |
214 | "HTTP_GET_SEND", | |
215 | "HTTP_HEAD", | |
216 | "HTTP_POST", | |
217 | "HTTP_POST_RECV", | |
218 | "HTTP_POST_SEND", | |
219 | "HTTP_PUT", | |
220 | "HTTP_PUT_RECV", | |
221 | "HTTP_DELETE", | |
222 | "HTTP_TRACE", | |
223 | "HTTP_CLOSE", | |
224 | "HTTP_STATUS" | |
225 | }; | |
226 | #endif /* DEBUG */ | |
ef416fc2 | 227 | |
228 | ||
411affcf | 229 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) |
230 | /* | |
231 | * BIO methods for OpenSSL... | |
232 | */ | |
233 | ||
234 | static int http_bio_write(BIO *h, const char *buf, int num); | |
235 | static int http_bio_read(BIO *h, char *buf, int size); | |
236 | static int http_bio_puts(BIO *h, const char *str); | |
237 | static long http_bio_ctrl(BIO *h, int cmd, long arg1, void *arg2); | |
238 | static int http_bio_new(BIO *h); | |
239 | static int http_bio_free(BIO *data); | |
240 | ||
241 | static BIO_METHOD http_bio_methods = | |
242 | { | |
243 | BIO_TYPE_SOCKET, | |
244 | "http", | |
245 | http_bio_write, | |
246 | http_bio_read, | |
247 | http_bio_puts, | |
248 | NULL, /* http_bio_gets, */ | |
249 | http_bio_ctrl, | |
250 | http_bio_new, | |
251 | http_bio_free, | |
252 | NULL, | |
253 | }; | |
7cf5915e | 254 | #endif /* HAVE_SSL && HAVE_LIBSSL */ |
411affcf | 255 | |
256 | ||
7cf5915e MS |
257 | /* |
258 | * 'httpAddCredential()' - Allocates and adds a single credential to an array. | |
259 | * | |
260 | * Use @code cupsArrayNew(NULL, NULL)@ to create a credentials array. | |
261 | * | |
321d8d57 | 262 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
263 | */ |
264 | ||
265 | int /* O - 0 on success, -1 on error */ | |
266 | httpAddCredential( | |
267 | cups_array_t *credentials, /* I - Credentials array */ | |
268 | const void *data, /* I - PEM-encoded X.509 data */ | |
269 | size_t datalen) /* I - Length of data */ | |
270 | { | |
271 | http_credential_t *credential; /* Credential data */ | |
272 | ||
273 | ||
274 | if ((credential = malloc(sizeof(http_credential_t))) != NULL) | |
275 | { | |
276 | credential->datalen = datalen; | |
277 | ||
278 | if ((credential->data = malloc(datalen)) != NULL) | |
279 | { | |
280 | memcpy(credential->data, data, datalen); | |
281 | cupsArrayAdd(credentials, credential); | |
282 | return (0); | |
283 | } | |
284 | ||
285 | free(credential); | |
286 | } | |
287 | ||
288 | return (-1); | |
289 | } | |
290 | ||
291 | ||
292 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
411affcf | 293 | /* |
294 | * '_httpBIOMethods()' - Get the OpenSSL BIO methods for HTTP connections. | |
295 | */ | |
296 | ||
297 | BIO_METHOD * /* O - BIO methods for OpenSSL */ | |
298 | _httpBIOMethods(void) | |
299 | { | |
300 | return (&http_bio_methods); | |
301 | } | |
302 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
303 | ||
304 | ||
ecdc0628 | 305 | /* |
306 | * 'httpBlocking()' - Set blocking/non-blocking behavior on a connection. | |
307 | */ | |
308 | ||
309 | void | |
568fa3fa | 310 | httpBlocking(http_t *http, /* I - Connection to server */ |
ecdc0628 | 311 | int b) /* I - 1 = blocking, 0 = non-blocking */ |
312 | { | |
313 | if (http) | |
314 | http->blocking = b; | |
315 | } | |
316 | ||
317 | ||
ef416fc2 | 318 | /* |
319 | * 'httpCheck()' - Check to see if there is a pending response from the server. | |
320 | */ | |
321 | ||
ecdc0628 | 322 | int /* O - 0 = no data, 1 = data available */ |
568fa3fa | 323 | httpCheck(http_t *http) /* I - Connection to server */ |
ef416fc2 | 324 | { |
325 | return (httpWait(http, 0)); | |
326 | } | |
327 | ||
328 | ||
329 | /* | |
330 | * 'httpClearCookie()' - Clear the cookie value(s). | |
331 | * | |
426c6a59 | 332 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 333 | */ |
334 | ||
335 | void | |
568fa3fa | 336 | httpClearCookie(http_t *http) /* I - Connection to server */ |
ef416fc2 | 337 | { |
338 | if (!http) | |
339 | return; | |
340 | ||
341 | if (http->cookie) | |
342 | { | |
343 | free(http->cookie); | |
344 | http->cookie = NULL; | |
345 | } | |
346 | } | |
347 | ||
348 | ||
ecdc0628 | 349 | /* |
350 | * 'httpClearFields()' - Clear HTTP request fields. | |
351 | */ | |
352 | ||
353 | void | |
568fa3fa | 354 | httpClearFields(http_t *http) /* I - Connection to server */ |
ecdc0628 | 355 | { |
356 | if (http) | |
357 | { | |
358 | memset(http->fields, 0, sizeof(http->fields)); | |
07725fee | 359 | if (http->hostname[0] == '/') |
360 | httpSetField(http, HTTP_FIELD_HOST, "localhost"); | |
361 | else | |
362 | httpSetField(http, HTTP_FIELD_HOST, http->hostname); | |
b423cd4c | 363 | |
f7deaa1a | 364 | if (http->field_authorization) |
365 | { | |
366 | free(http->field_authorization); | |
367 | http->field_authorization = NULL; | |
368 | } | |
369 | ||
b423cd4c | 370 | http->expect = (http_status_t)0; |
ecdc0628 | 371 | } |
372 | } | |
373 | ||
374 | ||
ef416fc2 | 375 | /* |
6d2f911b | 376 | * 'httpClose()' - Close an HTTP connection. |
ef416fc2 | 377 | */ |
378 | ||
379 | void | |
568fa3fa | 380 | httpClose(http_t *http) /* I - Connection to server */ |
ef416fc2 | 381 | { |
f7deaa1a | 382 | #ifdef HAVE_GSSAPI |
1f0275e3 | 383 | OM_uint32 minor_status; /* Minor status code */ |
f7deaa1a | 384 | #endif /* HAVE_GSSAPI */ |
385 | ||
386 | ||
e07d4801 | 387 | DEBUG_printf(("httpClose(http=%p)", http)); |
ef416fc2 | 388 | |
6d2f911b MS |
389 | /* |
390 | * Range check input... | |
391 | */ | |
392 | ||
ef416fc2 | 393 | if (!http) |
394 | return; | |
395 | ||
6d2f911b MS |
396 | /* |
397 | * Close any open connection... | |
398 | */ | |
399 | ||
400 | _httpDisconnect(http); | |
401 | ||
402 | /* | |
403 | * Free memory used... | |
404 | */ | |
405 | ||
ef416fc2 | 406 | httpAddrFreeList(http->addrlist); |
407 | ||
ef416fc2 | 408 | if (http->cookie) |
409 | free(http->cookie); | |
410 | ||
f7deaa1a | 411 | #ifdef HAVE_GSSAPI |
412 | if (http->gssctx != GSS_C_NO_CONTEXT) | |
1f0275e3 | 413 | gss_delete_sec_context(&minor_status, &http->gssctx, GSS_C_NO_BUFFER); |
f7deaa1a | 414 | |
415 | if (http->gssname != GSS_C_NO_NAME) | |
1f0275e3 | 416 | gss_release_name(&minor_status, &http->gssname); |
f7deaa1a | 417 | #endif /* HAVE_GSSAPI */ |
418 | ||
b94498cf | 419 | #ifdef HAVE_AUTHORIZATION_H |
420 | if (http->auth_ref) | |
421 | AuthorizationFree(http->auth_ref, kAuthorizationFlagDefaults); | |
422 | #endif /* HAVE_AUTHORIZATION_H */ | |
423 | ||
f7deaa1a | 424 | httpClearFields(http); |
425 | ||
426 | if (http->authstring && http->authstring != http->_authstring) | |
427 | free(http->authstring); | |
428 | ||
ef416fc2 | 429 | free(http); |
430 | } | |
431 | ||
432 | ||
433 | /* | |
434 | * 'httpConnect()' - Connect to a HTTP server. | |
1ff0402e MS |
435 | * |
436 | * This function is deprecated - use @link httpConnectEncrypt@ instead. | |
437 | * | |
438 | * @deprecated@ | |
ef416fc2 | 439 | */ |
440 | ||
441 | http_t * /* O - New HTTP connection */ | |
442 | httpConnect(const char *host, /* I - Host to connect to */ | |
443 | int port) /* I - Port number */ | |
444 | { | |
1ff0402e MS |
445 | return (httpConnectEncrypt(host, port, HTTP_ENCRYPT_IF_REQUESTED)); |
446 | } | |
447 | ||
448 | ||
449 | /* | |
450 | * 'httpConnectEncrypt()' - Connect to a HTTP server using encryption. | |
451 | */ | |
452 | ||
453 | http_t * /* O - New HTTP connection */ | |
454 | httpConnectEncrypt( | |
455 | const char *host, /* I - Host to connect to */ | |
456 | int port, /* I - Port number */ | |
457 | http_encryption_t encryption) /* I - Type of encryption to use */ | |
458 | { | |
459 | http_t *http; /* New HTTP connection */ | |
ef416fc2 | 460 | |
461 | ||
e07d4801 | 462 | DEBUG_printf(("httpConnectEncrypt(host=\"%s\", port=%d, encryption=%d)", |
1ff0402e MS |
463 | host, port, encryption)); |
464 | ||
ef416fc2 | 465 | /* |
1ff0402e | 466 | * Create the HTTP structure... |
ef416fc2 | 467 | */ |
468 | ||
c8fef167 | 469 | if ((http = _httpCreate(host, port, NULL, encryption, AF_UNSPEC)) == NULL) |
1ff0402e | 470 | return (NULL); |
ef416fc2 | 471 | |
1ff0402e MS |
472 | /* |
473 | * Connect to the remote system... | |
474 | */ | |
475 | ||
476 | if (!httpReconnect(http)) | |
477 | return (http); | |
478 | ||
479 | /* | |
480 | * Could not connect to any known address - bail out! | |
481 | */ | |
482 | ||
483 | httpAddrFreeList(http->addrlist); | |
484 | ||
485 | free(http); | |
486 | ||
487 | return (NULL); | |
ef416fc2 | 488 | } |
489 | ||
490 | ||
7cf5915e MS |
491 | /* |
492 | * 'httpCopyCredentials()' - Copy the credentials associated with an encrypted | |
493 | * connection. | |
494 | * | |
321d8d57 | 495 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
496 | */ |
497 | ||
498 | int /* O - Status of call (0 = success) */ | |
499 | httpCopyCredentials( | |
500 | http_t *http, /* I - Connection to server */ | |
501 | cups_array_t **credentials) /* O - Array of credentials */ | |
502 | { | |
503 | # ifdef HAVE_LIBSSL | |
504 | # elif defined(HAVE_GNUTLS) | |
82f97232 | 505 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
506 | OSStatus error; /* Error code */ |
507 | CFIndex count; /* Number of credentials */ | |
508 | CFArrayRef peerCerts; /* Peer certificates */ | |
509 | SecCertificateRef secCert; /* Certificate reference */ | |
510 | CFDataRef data; /* Certificate data */ | |
511 | int i; /* Looping var */ | |
512 | # elif defined(HAVE_SSPISSL) | |
513 | # endif /* HAVE_LIBSSL */ | |
514 | ||
515 | ||
516 | if (credentials) | |
517 | *credentials = NULL; | |
518 | ||
519 | if (!http || !http->tls || !credentials) | |
520 | return (-1); | |
521 | ||
522 | # ifdef HAVE_LIBSSL | |
523 | return (-1); | |
524 | ||
525 | # elif defined(HAVE_GNUTLS) | |
526 | return (-1); | |
527 | ||
82f97232 | 528 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
529 | if (!(error = SSLCopyPeerCertificates(http->tls, &peerCerts)) && peerCerts) |
530 | { | |
531 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) | |
532 | { | |
533 | for (i = 0, count = CFArrayGetCount(peerCerts); i < count; i++) | |
534 | { | |
535 | secCert = (SecCertificateRef)CFArrayGetValueAtIndex(peerCerts, i); | |
536 | if ((data = SecCertificateCopyData(secCert))) | |
537 | { | |
538 | httpAddCredential(*credentials, CFDataGetBytePtr(data), | |
539 | CFDataGetLength(data)); | |
540 | CFRelease(data); | |
541 | } | |
542 | } | |
543 | } | |
544 | ||
545 | CFRelease(peerCerts); | |
546 | } | |
547 | ||
548 | return (error); | |
549 | ||
550 | # elif defined(HAVE_SSPISSL) | |
551 | return (-1); | |
82f97232 MS |
552 | |
553 | # else | |
554 | return (-1); | |
7cf5915e MS |
555 | # endif /* HAVE_LIBSSL */ |
556 | } | |
557 | ||
558 | ||
559 | /* | |
560 | * '_httpConvertCredentials()' - Convert credentials to the internal format. | |
561 | */ | |
562 | ||
563 | http_tls_credentials_t /* O - Internal credentials */ | |
564 | _httpConvertCredentials( | |
565 | cups_array_t *credentials) /* I - Array of credentials */ | |
566 | { | |
567 | if (!credentials) | |
568 | return (NULL); | |
569 | ||
570 | # ifdef HAVE_LIBSSL | |
571 | return (NULL); | |
572 | ||
573 | # elif defined(HAVE_GNUTLS) | |
574 | return (NULL); | |
575 | ||
82f97232 | 576 | # elif defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
577 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ |
578 | SecCertificateRef secCert; /* Certificate reference */ | |
579 | CFDataRef data; /* Credential data reference */ | |
580 | http_credential_t *credential; /* Credential data */ | |
581 | ||
582 | ||
583 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
584 | cupsArrayCount(credentials), | |
585 | &kCFTypeArrayCallBacks)) == NULL) | |
586 | return (NULL); | |
587 | ||
588 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
589 | credential; | |
590 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
591 | { | |
82f97232 | 592 | if ((data = CFDataCreate(kCFAllocatorDefault, credential->data, |
7cf5915e MS |
593 | credential->datalen))) |
594 | { | |
595 | if ((secCert = SecCertificateCreateWithData(kCFAllocatorDefault, data)) | |
596 | != NULL) | |
597 | { | |
598 | CFArrayAppendValue(peerCerts, secCert); | |
599 | CFRelease(secCert); | |
600 | } | |
601 | ||
602 | CFRelease(data); | |
603 | } | |
604 | } | |
605 | ||
606 | return (peerCerts); | |
607 | ||
608 | # elif defined(HAVE_SSPISSL) | |
609 | return (NULL); | |
610 | ||
611 | # else | |
612 | return (NULL); | |
613 | # endif /* HAVE_LIBSSL */ | |
614 | } | |
615 | ||
616 | ||
ef416fc2 | 617 | /* |
1ff0402e | 618 | * '_httpCreate()' - Create an unconnected HTTP connection. |
ef416fc2 | 619 | */ |
620 | ||
1ff0402e MS |
621 | http_t * /* O - HTTP connection */ |
622 | _httpCreate( | |
623 | const char *host, /* I - Hostname */ | |
ef416fc2 | 624 | int port, /* I - Port number */ |
c8fef167 | 625 | http_addrlist_t *addrlist, /* I - Address list or NULL */ |
1106b00e MS |
626 | http_encryption_t encryption, /* I - Encryption to use */ |
627 | int family) /* I - Address family or AF_UNSPEC */ | |
ef416fc2 | 628 | { |
c8fef167 MS |
629 | http_t *http; /* New HTTP connection */ |
630 | char service[255]; /* Service name */ | |
ef416fc2 | 631 | |
632 | ||
e07d4801 | 633 | DEBUG_printf(("4_httpCreate(host=\"%s\", port=%d, encryption=%d)", |
1ff0402e | 634 | host, port, encryption)); |
ef416fc2 | 635 | |
636 | if (!host) | |
637 | return (NULL); | |
638 | ||
639 | httpInitialize(); | |
640 | ||
641 | /* | |
642 | * Lookup the host... | |
643 | */ | |
644 | ||
645 | sprintf(service, "%d", port); | |
646 | ||
c8fef167 MS |
647 | if (!addrlist) |
648 | if ((addrlist = httpAddrGetList(host, family, service)) == NULL) | |
649 | return (NULL); | |
ef416fc2 | 650 | |
651 | /* | |
652 | * Allocate memory for the structure... | |
653 | */ | |
654 | ||
91c84a35 MS |
655 | if ((http = calloc(sizeof(http_t), 1)) == NULL) |
656 | { | |
657 | httpAddrFreeList(addrlist); | |
ef416fc2 | 658 | return (NULL); |
91c84a35 | 659 | } |
ef416fc2 | 660 | |
1ff0402e MS |
661 | /* |
662 | * Initialize the HTTP data... | |
663 | */ | |
664 | ||
ef416fc2 | 665 | http->activity = time(NULL); |
1ff0402e MS |
666 | http->addrlist = addrlist; |
667 | http->blocking = 1; | |
ef416fc2 | 668 | http->fd = -1; |
f7deaa1a | 669 | #ifdef HAVE_GSSAPI |
1ff0402e MS |
670 | http->gssctx = GSS_C_NO_CONTEXT; |
671 | http->gssname = GSS_C_NO_NAME; | |
f7deaa1a | 672 | #endif /* HAVE_GSSAPI */ |
1ff0402e | 673 | http->version = HTTP_1_1; |
f7deaa1a | 674 | |
1ff0402e | 675 | strlcpy(http->hostname, host, sizeof(http->hostname)); |
ef416fc2 | 676 | |
677 | if (port == 443) /* Always use encryption for https */ | |
678 | http->encryption = HTTP_ENCRYPT_ALWAYS; | |
679 | else | |
680 | http->encryption = encryption; | |
681 | ||
682 | /* | |
1ff0402e | 683 | * Return the new structure... |
ef416fc2 | 684 | */ |
685 | ||
1ff0402e | 686 | return (http); |
ef416fc2 | 687 | } |
688 | ||
689 | ||
690 | /* | |
691 | * 'httpDelete()' - Send a DELETE request to the server. | |
692 | */ | |
693 | ||
694 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 695 | httpDelete(http_t *http, /* I - Connection to server */ |
ef416fc2 | 696 | const char *uri) /* I - URI to delete */ |
697 | { | |
698 | return (http_send(http, HTTP_DELETE, uri)); | |
699 | } | |
700 | ||
701 | ||
6d2f911b MS |
702 | /* |
703 | * '_httpDisconnect()' - Disconnect a HTTP connection. | |
704 | */ | |
705 | ||
706 | void | |
707 | _httpDisconnect(http_t *http) /* I - Connection to server */ | |
708 | { | |
709 | #ifdef HAVE_SSL | |
710 | if (http->tls) | |
711 | http_shutdown_ssl(http); | |
712 | #endif /* HAVE_SSL */ | |
713 | ||
714 | #ifdef WIN32 | |
715 | closesocket(http->fd); | |
716 | #else | |
717 | close(http->fd); | |
718 | #endif /* WIN32 */ | |
719 | ||
720 | http->fd = -1; | |
721 | } | |
722 | ||
723 | ||
ef416fc2 | 724 | /* |
725 | * 'httpEncryption()' - Set the required encryption on the link. | |
726 | */ | |
727 | ||
728 | int /* O - -1 on error, 0 on success */ | |
568fa3fa | 729 | httpEncryption(http_t *http, /* I - Connection to server */ |
ef416fc2 | 730 | http_encryption_t e) /* I - New encryption preference */ |
731 | { | |
e07d4801 | 732 | DEBUG_printf(("httpEncryption(http=%p, e=%d)", http, e)); |
ef416fc2 | 733 | |
734 | #ifdef HAVE_SSL | |
735 | if (!http) | |
736 | return (0); | |
737 | ||
738 | http->encryption = e; | |
739 | ||
740 | if ((http->encryption == HTTP_ENCRYPT_ALWAYS && !http->tls) || | |
741 | (http->encryption == HTTP_ENCRYPT_NEVER && http->tls)) | |
742 | return (httpReconnect(http)); | |
743 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
744 | return (http_upgrade(http)); | |
745 | else | |
746 | return (0); | |
747 | #else | |
748 | if (e == HTTP_ENCRYPT_ALWAYS || e == HTTP_ENCRYPT_REQUIRED) | |
749 | return (-1); | |
750 | else | |
751 | return (0); | |
752 | #endif /* HAVE_SSL */ | |
753 | } | |
754 | ||
755 | ||
ecdc0628 | 756 | /* |
757 | * 'httpError()' - Get the last error on a connection. | |
758 | */ | |
759 | ||
760 | int /* O - Error code (errno) value */ | |
568fa3fa | 761 | httpError(http_t *http) /* I - Connection to server */ |
ecdc0628 | 762 | { |
763 | if (http) | |
764 | return (http->error); | |
765 | else | |
766 | return (EINVAL); | |
767 | } | |
768 | ||
769 | ||
ef416fc2 | 770 | /* |
771 | * 'httpFlush()' - Flush data from a HTTP connection. | |
772 | */ | |
773 | ||
774 | void | |
568fa3fa | 775 | httpFlush(http_t *http) /* I - Connection to server */ |
ef416fc2 | 776 | { |
f8b3a85b MS |
777 | char buffer[8192]; /* Junk buffer */ |
778 | int blocking; /* To block or not to block */ | |
779 | http_state_t oldstate; /* Old state */ | |
ef416fc2 | 780 | |
781 | ||
f11a948a MS |
782 | DEBUG_printf(("httpFlush(http=%p), state=%s", http, |
783 | http_states[http->state])); | |
ef416fc2 | 784 | |
fa73b229 | 785 | /* |
786 | * Temporarily set non-blocking mode so we don't get stuck in httpRead()... | |
787 | */ | |
788 | ||
789 | blocking = http->blocking; | |
790 | http->blocking = 0; | |
791 | ||
792 | /* | |
793 | * Read any data we can... | |
794 | */ | |
795 | ||
f8b3a85b | 796 | oldstate = http->state; |
a4d04587 | 797 | while (httpRead2(http, buffer, sizeof(buffer)) > 0); |
fa73b229 | 798 | |
799 | /* | |
800 | * Restore blocking and reset the connection if we didn't get all of | |
801 | * the remaining data... | |
802 | */ | |
803 | ||
804 | http->blocking = blocking; | |
805 | ||
aaf19ab0 | 806 | if (http->state == oldstate && http->state != HTTP_WAITING && http->fd >= 0) |
fa73b229 | 807 | { |
808 | /* | |
809 | * Didn't get the data back, so close the current connection. | |
810 | */ | |
811 | ||
812 | http->state = HTTP_WAITING; | |
813 | ||
814 | #ifdef HAVE_SSL | |
815 | if (http->tls) | |
816 | http_shutdown_ssl(http); | |
817 | #endif /* HAVE_SSL */ | |
818 | ||
819 | #ifdef WIN32 | |
820 | closesocket(http->fd); | |
821 | #else | |
822 | close(http->fd); | |
823 | #endif /* WIN32 */ | |
824 | ||
825 | http->fd = -1; | |
826 | } | |
ef416fc2 | 827 | } |
828 | ||
829 | ||
830 | /* | |
831 | * 'httpFlushWrite()' - Flush data in write buffer. | |
832 | * | |
426c6a59 | 833 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 834 | */ |
835 | ||
836 | int /* O - Bytes written or -1 on error */ | |
568fa3fa | 837 | httpFlushWrite(http_t *http) /* I - Connection to server */ |
ef416fc2 | 838 | { |
839 | int bytes; /* Bytes written */ | |
840 | ||
841 | ||
e07d4801 | 842 | DEBUG_printf(("httpFlushWrite(http=%p)", http)); |
ef416fc2 | 843 | |
844 | if (!http || !http->wused) | |
f8b3a85b MS |
845 | { |
846 | DEBUG_puts(http ? "1httpFlushWrite: Write buffer is empty." : | |
847 | "1httpFlushWrite: No connection."); | |
ef416fc2 | 848 | return (0); |
f8b3a85b | 849 | } |
ef416fc2 | 850 | |
851 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
852 | bytes = http_write_chunk(http, http->wbuffer, http->wused); | |
853 | else | |
854 | bytes = http_write(http, http->wbuffer, http->wused); | |
855 | ||
856 | http->wused = 0; | |
857 | ||
22c9029b | 858 | DEBUG_printf(("1httpFlushWrite: Returning %d, errno=%d.", bytes, errno)); |
f8b3a85b | 859 | |
ef416fc2 | 860 | return (bytes); |
861 | } | |
862 | ||
863 | ||
7cf5915e MS |
864 | /* |
865 | * '_httpFreeCredentials()' - Free internal credentials. | |
866 | */ | |
867 | ||
868 | void | |
869 | _httpFreeCredentials( | |
870 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
871 | { | |
872 | if (!credentials) | |
873 | return; | |
874 | ||
875 | #ifdef HAVE_LIBSSL | |
876 | (void)credentials; | |
877 | ||
878 | #elif defined(HAVE_GNUTLS) | |
879 | (void)credentials; | |
880 | ||
881 | #elif defined(HAVE_CDSASSL) | |
882 | CFRelease(credentials); | |
883 | ||
884 | #elif defined(HAVE_SSPISSL) | |
885 | (void)credentials; | |
886 | ||
887 | #endif /* HAVE_LIBSSL */ | |
888 | } | |
889 | ||
890 | ||
891 | /* | |
892 | * 'httpFreeCredentials()' - Free an array of credentials. | |
893 | */ | |
894 | ||
895 | void | |
896 | httpFreeCredentials( | |
897 | cups_array_t *credentials) /* I - Array of credentials */ | |
898 | { | |
899 | http_credential_t *credential; /* Credential */ | |
900 | ||
901 | ||
902 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
903 | credential; | |
904 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
905 | { | |
906 | cupsArrayRemove(credentials, credential); | |
907 | free((void *)credential->data); | |
908 | free(credential); | |
909 | } | |
910 | ||
911 | cupsArrayDelete(credentials); | |
912 | } | |
913 | ||
914 | ||
ef416fc2 | 915 | /* |
916 | * 'httpGet()' - Send a GET request to the server. | |
917 | */ | |
918 | ||
919 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 920 | httpGet(http_t *http, /* I - Connection to server */ |
ef416fc2 | 921 | const char *uri) /* I - URI to get */ |
922 | { | |
923 | return (http_send(http, HTTP_GET, uri)); | |
924 | } | |
925 | ||
926 | ||
355e94dc MS |
927 | /* |
928 | * 'httpGetAuthString()' - Get the current authorization string. | |
929 | * | |
930 | * The authorization string is set by cupsDoAuthentication() and | |
931 | * httpSetAuthString(). Use httpGetAuthString() to retrieve the | |
932 | * string to use with httpSetField() for the HTTP_FIELD_AUTHORIZATION | |
933 | * value. | |
934 | * | |
426c6a59 | 935 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
936 | */ |
937 | ||
938 | char * /* O - Authorization string */ | |
568fa3fa | 939 | httpGetAuthString(http_t *http) /* I - Connection to server */ |
355e94dc MS |
940 | { |
941 | if (http) | |
942 | return (http->authstring); | |
943 | else | |
944 | return (NULL); | |
945 | } | |
946 | ||
947 | ||
ecdc0628 | 948 | /* |
949 | * 'httpGetBlocking()' - Get the blocking/non-block state of a connection. | |
950 | * | |
426c6a59 | 951 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 952 | */ |
953 | ||
954 | int /* O - 1 if blocking, 0 if non-blocking */ | |
568fa3fa | 955 | httpGetBlocking(http_t *http) /* I - Connection to server */ |
ecdc0628 | 956 | { |
957 | return (http ? http->blocking : 0); | |
958 | } | |
959 | ||
960 | ||
961 | /* | |
962 | * 'httpGetCookie()' - Get any cookie data from the response. | |
757d2cad | 963 | * |
426c6a59 | 964 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ecdc0628 | 965 | */ |
966 | ||
967 | const char * /* O - Cookie data or NULL */ | |
968 | httpGetCookie(http_t *http) /* I - HTTP connecion */ | |
969 | { | |
970 | return (http ? http->cookie : NULL); | |
971 | } | |
972 | ||
973 | ||
974 | /* | |
975 | * 'httpGetFd()' - Get the file descriptor associated with a connection. | |
976 | * | |
426c6a59 | 977 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 978 | */ |
979 | ||
980 | int /* O - File descriptor or -1 if none */ | |
568fa3fa | 981 | httpGetFd(http_t *http) /* I - Connection to server */ |
ecdc0628 | 982 | { |
983 | return (http ? http->fd : -1); | |
984 | } | |
985 | ||
986 | ||
987 | /* | |
988 | * 'httpGetField()' - Get a field value from a request/response. | |
989 | */ | |
990 | ||
991 | const char * /* O - Field value */ | |
568fa3fa | 992 | httpGetField(http_t *http, /* I - Connection to server */ |
ecdc0628 | 993 | http_field_t field) /* I - Field to get */ |
994 | { | |
995 | if (!http || field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) | |
996 | return (NULL); | |
ef55b745 | 997 | else if (field == HTTP_FIELD_AUTHORIZATION && |
f7deaa1a | 998 | http->field_authorization) |
999 | { | |
1000 | /* | |
1001 | * Special case for WWW-Authenticate: as its contents can be | |
1002 | * longer than HTTP_MAX_VALUE... | |
1003 | */ | |
1004 | ||
1005 | return (http->field_authorization); | |
1006 | } | |
ecdc0628 | 1007 | else |
1008 | return (http->fields[field]); | |
1009 | } | |
1010 | ||
1011 | ||
1012 | /* | |
1013 | * 'httpGetLength()' - Get the amount of data remaining from the | |
1014 | * content-length or transfer-encoding fields. | |
1015 | * | |
1016 | * This function is deprecated and will not return lengths larger than | |
1017 | * 2^31 - 1; use httpGetLength2() instead. | |
1018 | * | |
1019 | * @deprecated@ | |
1020 | */ | |
1021 | ||
1022 | int /* O - Content length */ | |
568fa3fa | 1023 | httpGetLength(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1024 | { |
1025 | /* | |
1026 | * Get the read content length and return the 32-bit value. | |
1027 | */ | |
1028 | ||
1029 | if (http) | |
1030 | { | |
1031 | httpGetLength2(http); | |
1032 | ||
1033 | return (http->_data_remaining); | |
1034 | } | |
1035 | else | |
1036 | return (-1); | |
1037 | } | |
1038 | ||
1039 | ||
1040 | /* | |
1041 | * 'httpGetLength2()' - Get the amount of data remaining from the | |
1042 | * content-length or transfer-encoding fields. | |
1043 | * | |
1044 | * This function returns the complete content length, even for | |
1045 | * content larger than 2^31 - 1. | |
1046 | * | |
426c6a59 | 1047 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 1048 | */ |
1049 | ||
1050 | off_t /* O - Content length */ | |
568fa3fa | 1051 | httpGetLength2(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1052 | { |
f11a948a MS |
1053 | DEBUG_printf(("2httpGetLength2(http=%p), state=%s", http, |
1054 | http_states[http->state])); | |
ecdc0628 | 1055 | |
1056 | if (!http) | |
1057 | return (-1); | |
1058 | ||
88f9aafc | 1059 | if (!_cups_strcasecmp(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked")) |
ecdc0628 | 1060 | { |
e07d4801 | 1061 | DEBUG_puts("4httpGetLength2: chunked request!"); |
ecdc0628 | 1062 | |
1063 | http->data_encoding = HTTP_ENCODE_CHUNKED; | |
1064 | http->data_remaining = 0; | |
1065 | } | |
1066 | else | |
1067 | { | |
1068 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1069 | ||
1070 | /* | |
1071 | * The following is a hack for HTTP servers that don't send a | |
1072 | * content-length or transfer-encoding field... | |
1073 | * | |
1074 | * If there is no content-length then the connection must close | |
1075 | * after the transfer is complete... | |
1076 | */ | |
1077 | ||
b86bc4cf | 1078 | if (!http->fields[HTTP_FIELD_CONTENT_LENGTH][0]) |
1079 | { | |
1080 | /* | |
1081 | * Default content length is 0 for errors and 2^31-1 for other | |
1082 | * successful requests... | |
1083 | */ | |
1084 | ||
1085 | if (http->status >= HTTP_MULTIPLE_CHOICES) | |
1086 | http->data_remaining = 0; | |
1087 | else | |
1088 | http->data_remaining = 2147483647; | |
1089 | } | |
ecdc0628 | 1090 | else |
1091 | http->data_remaining = strtoll(http->fields[HTTP_FIELD_CONTENT_LENGTH], | |
1092 | NULL, 10); | |
1093 | ||
e07d4801 | 1094 | DEBUG_printf(("4httpGetLength2: content_length=" CUPS_LLFMT, |
ecdc0628 | 1095 | CUPS_LLCAST http->data_remaining)); |
1096 | } | |
1097 | ||
1098 | if (http->data_remaining <= INT_MAX) | |
1099 | http->_data_remaining = (int)http->data_remaining; | |
1100 | else | |
1101 | http->_data_remaining = INT_MAX; | |
1102 | ||
1103 | return (http->data_remaining); | |
1104 | } | |
1105 | ||
1106 | ||
1107 | /* | |
1108 | * 'httpGetStatus()' - Get the status of the last HTTP request. | |
1109 | * | |
426c6a59 | 1110 | * @since CUPS 1.2/Mac OS X 10.5@ |
ecdc0628 | 1111 | */ |
1112 | ||
1113 | http_status_t /* O - HTTP status */ | |
568fa3fa | 1114 | httpGetStatus(http_t *http) /* I - Connection to server */ |
ecdc0628 | 1115 | { |
1116 | return (http ? http->status : HTTP_ERROR); | |
1117 | } | |
1118 | ||
1119 | ||
ef416fc2 | 1120 | /* |
1121 | * 'httpGetSubField()' - Get a sub-field value. | |
1122 | * | |
1123 | * @deprecated@ | |
1124 | */ | |
1125 | ||
1126 | char * /* O - Value or NULL */ | |
568fa3fa | 1127 | httpGetSubField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1128 | http_field_t field, /* I - Field index */ |
1129 | const char *name, /* I - Name of sub-field */ | |
1130 | char *value) /* O - Value string */ | |
1131 | { | |
1132 | return (httpGetSubField2(http, field, name, value, HTTP_MAX_VALUE)); | |
1133 | } | |
1134 | ||
1135 | ||
1136 | /* | |
1137 | * 'httpGetSubField2()' - Get a sub-field value. | |
1138 | * | |
426c6a59 | 1139 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 1140 | */ |
1141 | ||
1142 | char * /* O - Value or NULL */ | |
568fa3fa | 1143 | httpGetSubField2(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1144 | http_field_t field, /* I - Field index */ |
1145 | const char *name, /* I - Name of sub-field */ | |
1146 | char *value, /* O - Value string */ | |
1147 | int valuelen) /* I - Size of value buffer */ | |
1148 | { | |
1149 | const char *fptr; /* Pointer into field */ | |
1150 | char temp[HTTP_MAX_VALUE], /* Temporary buffer for name */ | |
1151 | *ptr, /* Pointer into string buffer */ | |
1152 | *end; /* End of value buffer */ | |
1153 | ||
e07d4801 MS |
1154 | DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, " |
1155 | "valuelen=%d)", http, field, name, value, valuelen)); | |
ef416fc2 | 1156 | |
1157 | if (!http || !name || !value || valuelen < 2 || | |
ecdc0628 | 1158 | field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX) |
ef416fc2 | 1159 | return (NULL); |
1160 | ||
1161 | end = value + valuelen - 1; | |
1162 | ||
1163 | for (fptr = http->fields[field]; *fptr;) | |
1164 | { | |
1165 | /* | |
1166 | * Skip leading whitespace... | |
1167 | */ | |
1168 | ||
7cf5915e | 1169 | while (_cups_isspace(*fptr)) |
ef416fc2 | 1170 | fptr ++; |
1171 | ||
1172 | if (*fptr == ',') | |
1173 | { | |
1174 | fptr ++; | |
1175 | continue; | |
1176 | } | |
1177 | ||
1178 | /* | |
1179 | * Get the sub-field name... | |
1180 | */ | |
1181 | ||
1182 | for (ptr = temp; | |
7cf5915e | 1183 | *fptr && *fptr != '=' && !_cups_isspace(*fptr) && |
ef416fc2 | 1184 | ptr < (temp + sizeof(temp) - 1); |
1185 | *ptr++ = *fptr++); | |
1186 | ||
1187 | *ptr = '\0'; | |
1188 | ||
e07d4801 | 1189 | DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp)); |
ef416fc2 | 1190 | |
1191 | /* | |
1192 | * Skip trailing chars up to the '='... | |
1193 | */ | |
1194 | ||
7cf5915e | 1195 | while (_cups_isspace(*fptr)) |
ef416fc2 | 1196 | fptr ++; |
1197 | ||
1198 | if (!*fptr) | |
1199 | break; | |
1200 | ||
1201 | if (*fptr != '=') | |
1202 | continue; | |
1203 | ||
1204 | /* | |
1205 | * Skip = and leading whitespace... | |
1206 | */ | |
1207 | ||
1208 | fptr ++; | |
1209 | ||
7cf5915e | 1210 | while (_cups_isspace(*fptr)) |
ef416fc2 | 1211 | fptr ++; |
1212 | ||
1213 | if (*fptr == '\"') | |
1214 | { | |
1215 | /* | |
1216 | * Read quoted string... | |
1217 | */ | |
1218 | ||
1219 | for (ptr = value, fptr ++; | |
1220 | *fptr && *fptr != '\"' && ptr < end; | |
1221 | *ptr++ = *fptr++); | |
1222 | ||
1223 | *ptr = '\0'; | |
1224 | ||
1225 | while (*fptr && *fptr != '\"') | |
1226 | fptr ++; | |
1227 | ||
1228 | if (*fptr) | |
1229 | fptr ++; | |
1230 | } | |
1231 | else | |
1232 | { | |
1233 | /* | |
1234 | * Read unquoted string... | |
1235 | */ | |
1236 | ||
1237 | for (ptr = value; | |
7cf5915e | 1238 | *fptr && !_cups_isspace(*fptr) && *fptr != ',' && ptr < end; |
ef416fc2 | 1239 | *ptr++ = *fptr++); |
1240 | ||
1241 | *ptr = '\0'; | |
1242 | ||
7cf5915e | 1243 | while (*fptr && !_cups_isspace(*fptr) && *fptr != ',') |
ef416fc2 | 1244 | fptr ++; |
1245 | } | |
1246 | ||
e07d4801 | 1247 | DEBUG_printf(("4httpGetSubField2: value=\"%s\"", value)); |
ef416fc2 | 1248 | |
1249 | /* | |
1250 | * See if this is the one... | |
1251 | */ | |
1252 | ||
1253 | if (!strcmp(name, temp)) | |
e07d4801 MS |
1254 | { |
1255 | DEBUG_printf(("3httpGetSubField2: Returning \"%s\"", value)); | |
ef416fc2 | 1256 | return (value); |
e07d4801 | 1257 | } |
ef416fc2 | 1258 | } |
1259 | ||
1260 | value[0] = '\0'; | |
1261 | ||
e07d4801 MS |
1262 | DEBUG_puts("3httpGetSubField2: Returning NULL"); |
1263 | ||
ef416fc2 | 1264 | return (NULL); |
1265 | } | |
1266 | ||
1267 | ||
ef416fc2 | 1268 | /* |
1269 | * 'httpGets()' - Get a line of text from a HTTP connection. | |
1270 | */ | |
1271 | ||
1272 | char * /* O - Line or NULL */ | |
1273 | httpGets(char *line, /* I - Line to read into */ | |
1274 | int length, /* I - Max length of buffer */ | |
568fa3fa | 1275 | http_t *http) /* I - Connection to server */ |
ef416fc2 | 1276 | { |
1277 | char *lineptr, /* Pointer into line */ | |
1278 | *lineend, /* End of line */ | |
1279 | *bufptr, /* Pointer into input buffer */ | |
1280 | *bufend; /* Pointer to end of buffer */ | |
1281 | int bytes, /* Number of bytes read */ | |
1282 | eol; /* End-of-line? */ | |
1283 | ||
1284 | ||
e07d4801 | 1285 | DEBUG_printf(("2httpGets(line=%p, length=%d, http=%p)", line, length, http)); |
ef416fc2 | 1286 | |
1287 | if (http == NULL || line == NULL) | |
1288 | return (NULL); | |
1289 | ||
1290 | /* | |
1291 | * Read a line from the buffer... | |
1292 | */ | |
f11a948a MS |
1293 | |
1294 | http->error = 0; | |
1295 | lineptr = line; | |
1296 | lineend = line + length - 1; | |
1297 | eol = 0; | |
ef416fc2 | 1298 | |
1299 | while (lineptr < lineend) | |
1300 | { | |
1301 | /* | |
1302 | * Pre-load the buffer as needed... | |
1303 | */ | |
1304 | ||
1305 | #ifdef WIN32 | |
1306 | WSASetLastError(0); | |
1307 | #else | |
1308 | errno = 0; | |
1309 | #endif /* WIN32 */ | |
1310 | ||
1311 | while (http->used == 0) | |
1312 | { | |
1313 | /* | |
1314 | * No newline; see if there is more data to be read... | |
1315 | */ | |
1316 | ||
f228370c | 1317 | while (!_httpWait(http, http->blocking ? 30000 : 10000, 1)) |
89d46774 | 1318 | { |
f228370c MS |
1319 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
1320 | continue; | |
1321 | ||
e07d4801 | 1322 | DEBUG_puts("3httpGets: Timed out!"); |
b86bc4cf | 1323 | #ifdef WIN32 |
1324 | http->error = WSAETIMEDOUT; | |
1325 | #else | |
89d46774 | 1326 | http->error = ETIMEDOUT; |
b86bc4cf | 1327 | #endif /* WIN32 */ |
ef416fc2 | 1328 | return (NULL); |
89d46774 | 1329 | } |
ef416fc2 | 1330 | |
1331 | #ifdef HAVE_SSL | |
1332 | if (http->tls) | |
1333 | bytes = http_read_ssl(http, http->buffer + http->used, | |
1334 | HTTP_MAX_BUFFER - http->used); | |
1335 | else | |
1336 | #endif /* HAVE_SSL */ | |
1337 | bytes = recv(http->fd, http->buffer + http->used, | |
1338 | HTTP_MAX_BUFFER - http->used, 0); | |
1339 | ||
e07d4801 | 1340 | DEBUG_printf(("4httpGets: read %d bytes...", bytes)); |
ef416fc2 | 1341 | |
1342 | if (bytes < 0) | |
1343 | { | |
1344 | /* | |
1345 | * Nope, can't get a line this time... | |
1346 | */ | |
1347 | ||
1348 | #ifdef WIN32 | |
cc754834 MS |
1349 | DEBUG_printf(("3httpGets: recv() error %d!", WSAGetLastError())); |
1350 | ||
10d09e33 | 1351 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 1352 | continue; |
10d09e33 MS |
1353 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1354 | { | |
1355 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1356 | continue; | |
1357 | ||
1358 | http->error = WSAGetLastError(); | |
1359 | } | |
cc754834 | 1360 | else if (WSAGetLastError() != http->error) |
ef416fc2 | 1361 | { |
1362 | http->error = WSAGetLastError(); | |
1363 | continue; | |
1364 | } | |
1365 | ||
ef416fc2 | 1366 | #else |
e07d4801 | 1367 | DEBUG_printf(("3httpGets: recv() error %d!", errno)); |
ef416fc2 | 1368 | |
10d09e33 | 1369 | if (errno == EINTR) |
ef416fc2 | 1370 | continue; |
10d09e33 MS |
1371 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
1372 | { | |
1373 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1374 | continue; | |
1375 | else if (!http->timeout_cb && errno == EAGAIN) | |
1376 | continue; | |
1377 | ||
1378 | http->error = errno; | |
1379 | } | |
ef416fc2 | 1380 | else if (errno != http->error) |
1381 | { | |
1382 | http->error = errno; | |
1383 | continue; | |
1384 | } | |
1385 | #endif /* WIN32 */ | |
1386 | ||
1387 | return (NULL); | |
1388 | } | |
1389 | else if (bytes == 0) | |
1390 | { | |
1391 | http->error = EPIPE; | |
1392 | ||
1393 | return (NULL); | |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * Yup, update the amount used... | |
1398 | */ | |
1399 | ||
1400 | http->used += bytes; | |
1401 | } | |
1402 | ||
1403 | /* | |
1404 | * Now copy as much of the current line as possible... | |
1405 | */ | |
1406 | ||
1407 | for (bufptr = http->buffer, bufend = http->buffer + http->used; | |
1408 | lineptr < lineend && bufptr < bufend;) | |
1409 | { | |
1410 | if (*bufptr == 0x0a) | |
1411 | { | |
1412 | eol = 1; | |
1413 | bufptr ++; | |
1414 | break; | |
1415 | } | |
1416 | else if (*bufptr == 0x0d) | |
1417 | bufptr ++; | |
1418 | else | |
1419 | *lineptr++ = *bufptr++; | |
1420 | } | |
1421 | ||
b86bc4cf | 1422 | http->used -= (int)(bufptr - http->buffer); |
ef416fc2 | 1423 | if (http->used > 0) |
1424 | memmove(http->buffer, bufptr, http->used); | |
1425 | ||
1426 | if (eol) | |
1427 | { | |
1428 | /* | |
1429 | * End of line... | |
1430 | */ | |
1431 | ||
1432 | http->activity = time(NULL); | |
1433 | ||
1434 | *lineptr = '\0'; | |
ef55b745 | 1435 | |
e07d4801 | 1436 | DEBUG_printf(("3httpGets: Returning \"%s\"", line)); |
ef416fc2 | 1437 | |
1438 | return (line); | |
1439 | } | |
1440 | } | |
1441 | ||
e07d4801 | 1442 | DEBUG_puts("3httpGets: No new line available!"); |
ef416fc2 | 1443 | |
1444 | return (NULL); | |
1445 | } | |
1446 | ||
1447 | ||
1448 | /* | |
1449 | * 'httpHead()' - Send a HEAD request to the server. | |
1450 | */ | |
1451 | ||
1452 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1453 | httpHead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1454 | const char *uri) /* I - URI for head */ |
1455 | { | |
e07d4801 | 1456 | DEBUG_printf(("httpHead(http=%p, uri=\"%s\")", http, uri)); |
ef416fc2 | 1457 | return (http_send(http, HTTP_HEAD, uri)); |
1458 | } | |
1459 | ||
1460 | ||
1461 | /* | |
1462 | * 'httpInitialize()' - Initialize the HTTP interface library and set the | |
1463 | * default HTTP proxy (if any). | |
1464 | */ | |
1465 | ||
1466 | void | |
1467 | httpInitialize(void) | |
1468 | { | |
6d2f911b MS |
1469 | static int initialized = 0; /* Have we been called before? */ |
1470 | #ifdef WIN32 | |
1471 | WSADATA winsockdata; /* WinSock data */ | |
1472 | #endif /* WIN32 */ | |
ef416fc2 | 1473 | #ifdef HAVE_LIBSSL |
6d2f911b MS |
1474 | int i; /* Looping var */ |
1475 | unsigned char data[1024]; /* Seed data */ | |
ef416fc2 | 1476 | #endif /* HAVE_LIBSSL */ |
1477 | ||
ef416fc2 | 1478 | |
6d2f911b MS |
1479 | _cupsGlobalLock(); |
1480 | if (initialized) | |
1481 | { | |
1482 | _cupsGlobalUnlock(); | |
1483 | return; | |
1484 | } | |
1485 | ||
1486 | #ifdef WIN32 | |
c7017ecc | 1487 | WSAStartup(MAKEWORD(2,2), &winsockdata); |
ef416fc2 | 1488 | |
fa73b229 | 1489 | #elif !defined(SO_NOSIGPIPE) |
ef416fc2 | 1490 | /* |
1491 | * Ignore SIGPIPE signals... | |
1492 | */ | |
1493 | ||
fa73b229 | 1494 | # ifdef HAVE_SIGSET |
1495 | sigset(SIGPIPE, SIG_IGN); | |
6d2f911b | 1496 | |
fa73b229 | 1497 | # elif defined(HAVE_SIGACTION) |
1498 | struct sigaction action; /* POSIX sigaction data */ | |
1499 | ||
1500 | ||
ef416fc2 | 1501 | memset(&action, 0, sizeof(action)); |
1502 | action.sa_handler = SIG_IGN; | |
1503 | sigaction(SIGPIPE, &action, NULL); | |
6d2f911b | 1504 | |
fa73b229 | 1505 | # else |
ef416fc2 | 1506 | signal(SIGPIPE, SIG_IGN); |
fa73b229 | 1507 | # endif /* !SO_NOSIGPIPE */ |
ef416fc2 | 1508 | #endif /* WIN32 */ |
1509 | ||
1510 | #ifdef HAVE_GNUTLS | |
6d2f911b MS |
1511 | /* |
1512 | * Initialize GNU TLS... | |
1513 | */ | |
1514 | ||
ef416fc2 | 1515 | gnutls_global_init(); |
ef416fc2 | 1516 | |
6d2f911b MS |
1517 | #elif defined(HAVE_LIBSSL) |
1518 | /* | |
1519 | * Initialize OpenSSL... | |
1520 | */ | |
1521 | ||
ef416fc2 | 1522 | SSL_load_error_strings(); |
1523 | SSL_library_init(); | |
1524 | ||
1525 | /* | |
1526 | * Using the current time is a dubious random seed, but on some systems | |
1527 | * it is the best we can do (on others, this seed isn't even used...) | |
1528 | */ | |
1529 | ||
6d2f911b | 1530 | CUPS_SRAND(time(NULL)); |
ef416fc2 | 1531 | |
1532 | for (i = 0; i < sizeof(data); i ++) | |
6d2f911b | 1533 | data[i] = CUPS_RAND(); |
ef416fc2 | 1534 | |
dfd5680b | 1535 | RAND_seed(data, sizeof(data)); |
6d2f911b MS |
1536 | #endif /* HAVE_GNUTLS */ |
1537 | ||
1538 | initialized = 1; | |
1539 | _cupsGlobalUnlock(); | |
ef416fc2 | 1540 | } |
1541 | ||
1542 | ||
1543 | /* | |
1544 | * 'httpOptions()' - Send an OPTIONS request to the server. | |
1545 | */ | |
1546 | ||
1547 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1548 | httpOptions(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1549 | const char *uri) /* I - URI for options */ |
1550 | { | |
1551 | return (http_send(http, HTTP_OPTIONS, uri)); | |
1552 | } | |
1553 | ||
1554 | ||
6d2f911b MS |
1555 | /* |
1556 | * '_httpPeek()' - Peek at data from a HTTP connection. | |
1557 | * | |
1558 | * This function copies available data from the given HTTP connection, reading | |
1559 | * a buffer as needed. The data is still available for reading using | |
1560 | * @link httpRead@ or @link httpRead2@. | |
1561 | * | |
1562 | * For non-blocking connections the usual timeouts apply. | |
1563 | */ | |
1564 | ||
1565 | ssize_t /* O - Number of bytes copied */ | |
1566 | _httpPeek(http_t *http, /* I - Connection to server */ | |
1567 | char *buffer, /* I - Buffer for data */ | |
1568 | size_t length) /* I - Maximum number of bytes */ | |
1569 | { | |
1570 | ssize_t bytes; /* Bytes read */ | |
1571 | char len[32]; /* Length string */ | |
1572 | ||
1573 | ||
1574 | DEBUG_printf(("_httpPeek(http=%p, buffer=%p, length=" CUPS_LLFMT ")", | |
1575 | http, buffer, CUPS_LLCAST length)); | |
1576 | ||
1577 | if (http == NULL || buffer == NULL) | |
1578 | return (-1); | |
1579 | ||
1580 | http->activity = time(NULL); | |
1581 | http->error = 0; | |
1582 | ||
1583 | if (length <= 0) | |
1584 | return (0); | |
1585 | ||
1586 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1587 | http->data_remaining <= 0) | |
1588 | { | |
1589 | DEBUG_puts("2_httpPeek: Getting chunk length..."); | |
1590 | ||
1591 | if (httpGets(len, sizeof(len), http) == NULL) | |
1592 | { | |
1593 | DEBUG_puts("1_httpPeek: Could not get length!"); | |
1594 | return (0); | |
1595 | } | |
1596 | ||
1597 | http->data_remaining = strtoll(len, NULL, 16); | |
1598 | if (http->data_remaining < 0) | |
1599 | { | |
1600 | DEBUG_puts("1_httpPeek: Negative chunk length!"); | |
1601 | return (0); | |
1602 | } | |
1603 | } | |
1604 | ||
1605 | DEBUG_printf(("2_httpPeek: data_remaining=" CUPS_LLFMT, | |
1606 | CUPS_LLCAST http->data_remaining)); | |
1607 | ||
1608 | if (http->data_remaining <= 0) | |
1609 | { | |
1610 | /* | |
1611 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1612 | * data, go idle... | |
1613 | */ | |
1614 | ||
1615 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1616 | httpGets(len, sizeof(len), http); | |
1617 | ||
1618 | if (http->state == HTTP_POST_RECV) | |
1619 | http->state ++; | |
1620 | else | |
1621 | http->state = HTTP_WAITING; | |
1622 | ||
1623 | /* | |
1624 | * Prevent future reads for this request... | |
1625 | */ | |
1626 | ||
1627 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1628 | ||
1629 | return (0); | |
1630 | } | |
1631 | else if (length > (size_t)http->data_remaining) | |
1632 | length = (size_t)http->data_remaining; | |
1633 | ||
1634 | if (http->used == 0) | |
1635 | { | |
1636 | /* | |
1637 | * Buffer small reads for better performance... | |
1638 | */ | |
1639 | ||
f228370c MS |
1640 | if (!http->blocking) |
1641 | { | |
1642 | while (!httpWait(http, 10000)) | |
1643 | { | |
1644 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1645 | continue; | |
1646 | ||
1647 | return (0); | |
1648 | } | |
1649 | } | |
6d2f911b MS |
1650 | |
1651 | if (http->data_remaining > sizeof(http->buffer)) | |
1652 | bytes = sizeof(http->buffer); | |
1653 | else | |
1654 | bytes = http->data_remaining; | |
1655 | ||
1656 | #ifdef HAVE_SSL | |
1657 | if (http->tls) | |
1658 | bytes = http_read_ssl(http, http->buffer, bytes); | |
1659 | else | |
1660 | #endif /* HAVE_SSL */ | |
1661 | { | |
1662 | DEBUG_printf(("2_httpPeek: reading %d bytes from socket into buffer...", | |
1663 | (int)bytes)); | |
1664 | ||
1665 | bytes = recv(http->fd, http->buffer, bytes, 0); | |
1666 | ||
1667 | DEBUG_printf(("2_httpPeek: read %d bytes from socket into buffer...", | |
1668 | (int)bytes)); | |
1669 | } | |
1670 | ||
1671 | if (bytes > 0) | |
1672 | http->used = bytes; | |
1673 | else if (bytes < 0) | |
1674 | { | |
1675 | #ifdef WIN32 | |
cc754834 MS |
1676 | if (WSAGetLastError() != WSAEINTR && WSAGetLastError() != WSAEWOULDBLOCK) |
1677 | { | |
1678 | http->error = WSAGetLastError(); | |
1679 | return (-1); | |
1680 | } | |
6d2f911b MS |
1681 | #else |
1682 | if (errno != EINTR && errno != EAGAIN) | |
1683 | { | |
1684 | http->error = errno; | |
1685 | return (-1); | |
1686 | } | |
1687 | #endif /* WIN32 */ | |
1688 | } | |
1689 | else | |
1690 | { | |
1691 | http->error = EPIPE; | |
1692 | return (0); | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | if (http->used > 0) | |
1697 | { | |
1698 | if (length > (size_t)http->used) | |
1699 | length = (size_t)http->used; | |
1700 | ||
1701 | bytes = (ssize_t)length; | |
1702 | ||
1703 | DEBUG_printf(("2_httpPeek: grabbing %d bytes from input buffer...", | |
1704 | (int)bytes)); | |
1705 | ||
1706 | memcpy(buffer, http->buffer, length); | |
1707 | } | |
1708 | else | |
1709 | bytes = 0; | |
1710 | ||
1711 | if (bytes < 0) | |
1712 | { | |
1713 | #ifdef WIN32 | |
cc754834 MS |
1714 | if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEWOULDBLOCK) |
1715 | bytes = 0; | |
1716 | else | |
1717 | http->error = WSAGetLastError(); | |
6d2f911b MS |
1718 | #else |
1719 | if (errno == EINTR || errno == EAGAIN) | |
1720 | bytes = 0; | |
1721 | else | |
1722 | http->error = errno; | |
1723 | #endif /* WIN32 */ | |
1724 | } | |
1725 | else if (bytes == 0) | |
1726 | { | |
1727 | http->error = EPIPE; | |
1728 | return (0); | |
1729 | } | |
1730 | ||
1731 | #ifdef DEBUG | |
1732 | http_debug_hex("_httpPeek", buffer, (int)bytes); | |
1733 | #endif /* DEBUG */ | |
1734 | ||
1735 | return (bytes); | |
1736 | } | |
1737 | ||
1738 | ||
ef416fc2 | 1739 | /* |
1740 | * 'httpPost()' - Send a POST request to the server. | |
1741 | */ | |
1742 | ||
1743 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1744 | httpPost(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1745 | const char *uri) /* I - URI for post */ |
1746 | { | |
1747 | return (http_send(http, HTTP_POST, uri)); | |
1748 | } | |
1749 | ||
1750 | ||
1751 | /* | |
1752 | * 'httpPrintf()' - Print a formatted string to a HTTP connection. | |
ecdc0628 | 1753 | * |
1754 | * @private@ | |
ef416fc2 | 1755 | */ |
1756 | ||
1757 | int /* O - Number of bytes written */ | |
568fa3fa | 1758 | httpPrintf(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1759 | const char *format, /* I - printf-style format string */ |
1760 | ...) /* I - Additional args as needed */ | |
1761 | { | |
1762 | int bytes; /* Number of bytes to write */ | |
1763 | char buf[16384]; /* Buffer for formatted string */ | |
1764 | va_list ap; /* Variable argument pointer */ | |
1765 | ||
1766 | ||
e07d4801 | 1767 | DEBUG_printf(("2httpPrintf(http=%p, format=\"%s\", ...)", http, format)); |
ef416fc2 | 1768 | |
1769 | va_start(ap, format); | |
1770 | bytes = vsnprintf(buf, sizeof(buf), format, ap); | |
1771 | va_end(ap); | |
1772 | ||
e07d4801 | 1773 | DEBUG_printf(("3httpPrintf: %s", buf)); |
ef416fc2 | 1774 | |
d09495fa | 1775 | if (http->data_encoding == HTTP_ENCODE_FIELDS) |
1776 | return (httpWrite2(http, buf, bytes)); | |
1777 | else | |
ef416fc2 | 1778 | { |
d09495fa | 1779 | if (http->wused) |
1780 | { | |
e07d4801 | 1781 | DEBUG_puts("4httpPrintf: flushing existing data..."); |
ef416fc2 | 1782 | |
d09495fa | 1783 | if (httpFlushWrite(http) < 0) |
1784 | return (-1); | |
1785 | } | |
ef416fc2 | 1786 | |
d09495fa | 1787 | return (http_write(http, buf, bytes)); |
1788 | } | |
ef416fc2 | 1789 | } |
1790 | ||
1791 | ||
1792 | /* | |
1793 | * 'httpPut()' - Send a PUT request to the server. | |
1794 | */ | |
1795 | ||
1796 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 1797 | httpPut(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1798 | const char *uri) /* I - URI to put */ |
1799 | { | |
e07d4801 | 1800 | DEBUG_printf(("httpPut(http=%p, uri=\"%s\")", http, uri)); |
ef416fc2 | 1801 | return (http_send(http, HTTP_PUT, uri)); |
1802 | } | |
1803 | ||
1804 | ||
1805 | /* | |
1806 | * 'httpRead()' - Read data from a HTTP connection. | |
a4d04587 | 1807 | * |
1808 | * This function is deprecated. Use the httpRead2() function which can | |
1809 | * read more than 2GB of data. | |
1810 | * | |
1811 | * @deprecated@ | |
ef416fc2 | 1812 | */ |
1813 | ||
1814 | int /* O - Number of bytes read */ | |
568fa3fa | 1815 | httpRead(http_t *http, /* I - Connection to server */ |
ef416fc2 | 1816 | char *buffer, /* I - Buffer for data */ |
1817 | int length) /* I - Maximum number of bytes */ | |
1818 | { | |
a4d04587 | 1819 | return ((int)httpRead2(http, buffer, length)); |
1820 | } | |
1821 | ||
1822 | ||
1823 | /* | |
1824 | * 'httpRead2()' - Read data from a HTTP connection. | |
ecdc0628 | 1825 | * |
426c6a59 | 1826 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 1827 | */ |
1828 | ||
1829 | ssize_t /* O - Number of bytes read */ | |
568fa3fa | 1830 | httpRead2(http_t *http, /* I - Connection to server */ |
a4d04587 | 1831 | char *buffer, /* I - Buffer for data */ |
1832 | size_t length) /* I - Maximum number of bytes */ | |
1833 | { | |
1834 | ssize_t bytes; /* Bytes read */ | |
ef416fc2 | 1835 | char len[32]; /* Length string */ |
1836 | ||
1837 | ||
e07d4801 | 1838 | DEBUG_printf(("httpRead2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", |
a603edef | 1839 | http, buffer, CUPS_LLCAST length)); |
ef416fc2 | 1840 | |
1841 | if (http == NULL || buffer == NULL) | |
1842 | return (-1); | |
1843 | ||
1844 | http->activity = time(NULL); | |
f11a948a | 1845 | http->error = 0; |
ef416fc2 | 1846 | |
1847 | if (length <= 0) | |
1848 | return (0); | |
1849 | ||
1850 | if (http->data_encoding == HTTP_ENCODE_CHUNKED && | |
1851 | http->data_remaining <= 0) | |
1852 | { | |
e07d4801 | 1853 | DEBUG_puts("2httpRead2: Getting chunk length..."); |
ef416fc2 | 1854 | |
1855 | if (httpGets(len, sizeof(len), http) == NULL) | |
1856 | { | |
e07d4801 | 1857 | DEBUG_puts("1httpRead2: Could not get length!"); |
ef416fc2 | 1858 | return (0); |
1859 | } | |
1860 | ||
1861 | http->data_remaining = strtoll(len, NULL, 16); | |
1862 | if (http->data_remaining < 0) | |
1863 | { | |
e07d4801 | 1864 | DEBUG_puts("1httpRead2: Negative chunk length!"); |
ef416fc2 | 1865 | return (0); |
1866 | } | |
1867 | } | |
1868 | ||
e07d4801 | 1869 | DEBUG_printf(("2httpRead2: data_remaining=" CUPS_LLFMT, |
ef416fc2 | 1870 | CUPS_LLCAST http->data_remaining)); |
1871 | ||
1872 | if (http->data_remaining <= 0) | |
1873 | { | |
1874 | /* | |
1875 | * A zero-length chunk ends a transfer; unless we are reading POST | |
1876 | * data, go idle... | |
1877 | */ | |
1878 | ||
1879 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
1880 | httpGets(len, sizeof(len), http); | |
1881 | ||
1882 | if (http->state == HTTP_POST_RECV) | |
1883 | http->state ++; | |
1884 | else | |
1885 | http->state = HTTP_WAITING; | |
1886 | ||
1887 | /* | |
1888 | * Prevent future reads for this request... | |
1889 | */ | |
1890 | ||
1891 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
1892 | ||
1893 | return (0); | |
1894 | } | |
b86bc4cf | 1895 | else if (length > (size_t)http->data_remaining) |
1896 | length = (size_t)http->data_remaining; | |
ef416fc2 | 1897 | |
1898 | if (http->used == 0 && length <= 256) | |
1899 | { | |
1900 | /* | |
1901 | * Buffer small reads for better performance... | |
1902 | */ | |
1903 | ||
f228370c MS |
1904 | if (!http->blocking) |
1905 | { | |
1906 | while (!httpWait(http, 10000)) | |
1907 | { | |
1908 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1909 | continue; | |
1910 | ||
1911 | return (0); | |
1912 | } | |
1913 | } | |
ef416fc2 | 1914 | |
1915 | if (http->data_remaining > sizeof(http->buffer)) | |
1916 | bytes = sizeof(http->buffer); | |
1917 | else | |
1918 | bytes = http->data_remaining; | |
1919 | ||
1920 | #ifdef HAVE_SSL | |
1921 | if (http->tls) | |
1922 | bytes = http_read_ssl(http, http->buffer, bytes); | |
1923 | else | |
1924 | #endif /* HAVE_SSL */ | |
1925 | { | |
e07d4801 | 1926 | DEBUG_printf(("2httpRead2: reading %d bytes from socket into buffer...", |
a603edef | 1927 | (int)bytes)); |
ef416fc2 | 1928 | |
1929 | bytes = recv(http->fd, http->buffer, bytes, 0); | |
1930 | ||
e07d4801 | 1931 | DEBUG_printf(("2httpRead2: read %d bytes from socket into buffer...", |
a603edef | 1932 | (int)bytes)); |
ef416fc2 | 1933 | } |
1934 | ||
1935 | if (bytes > 0) | |
1936 | http->used = bytes; | |
1937 | else if (bytes < 0) | |
1938 | { | |
1939 | #ifdef WIN32 | |
10d09e33 | 1940 | if (WSAGetLastError() != WSAEINTR) |
cc754834 MS |
1941 | { |
1942 | http->error = WSAGetLastError(); | |
1943 | return (-1); | |
1944 | } | |
10d09e33 MS |
1945 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
1946 | { | |
1947 | if (!http->timeout_cb || !(*http->timeout_cb)(http, http->timeout_data)) | |
1948 | { | |
1949 | http->error = WSAEWOULDBLOCK; | |
1950 | return (-1); | |
1951 | } | |
1952 | } | |
ef416fc2 | 1953 | #else |
10d09e33 MS |
1954 | if (errno == EWOULDBLOCK || errno == EAGAIN) |
1955 | { | |
1956 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
1957 | { | |
1958 | http->error = errno; | |
1959 | return (-1); | |
1960 | } | |
1961 | else if (!http->timeout_cb && errno != EAGAIN) | |
1962 | { | |
1963 | http->error = errno; | |
1964 | return (-1); | |
1965 | } | |
1966 | } | |
1967 | else if (errno != EINTR) | |
ef416fc2 | 1968 | { |
1969 | http->error = errno; | |
1970 | return (-1); | |
1971 | } | |
1972 | #endif /* WIN32 */ | |
1973 | } | |
1974 | else | |
1975 | { | |
1976 | http->error = EPIPE; | |
1977 | return (0); | |
1978 | } | |
1979 | } | |
1980 | ||
1981 | if (http->used > 0) | |
1982 | { | |
b86bc4cf | 1983 | if (length > (size_t)http->used) |
1984 | length = (size_t)http->used; | |
ef416fc2 | 1985 | |
b86bc4cf | 1986 | bytes = (ssize_t)length; |
ef416fc2 | 1987 | |
e07d4801 | 1988 | DEBUG_printf(("2httpRead2: grabbing %d bytes from input buffer...", |
a603edef | 1989 | (int)bytes)); |
ef416fc2 | 1990 | |
1991 | memcpy(buffer, http->buffer, length); | |
b86bc4cf | 1992 | http->used -= (int)length; |
ef416fc2 | 1993 | |
1994 | if (http->used > 0) | |
1995 | memmove(http->buffer, http->buffer + length, http->used); | |
1996 | } | |
1997 | #ifdef HAVE_SSL | |
1998 | else if (http->tls) | |
1999 | { | |
f228370c MS |
2000 | if (!http->blocking) |
2001 | { | |
2002 | while (!httpWait(http, 10000)) | |
2003 | { | |
2004 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2005 | continue; | |
2006 | ||
2007 | return (0); | |
2008 | } | |
2009 | } | |
ef416fc2 | 2010 | |
b86bc4cf | 2011 | bytes = (ssize_t)http_read_ssl(http, buffer, (int)length); |
ef416fc2 | 2012 | } |
2013 | #endif /* HAVE_SSL */ | |
2014 | else | |
2015 | { | |
f228370c MS |
2016 | if (!http->blocking) |
2017 | { | |
2018 | while (!httpWait(http, 10000)) | |
2019 | { | |
2020 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
2021 | continue; | |
2022 | ||
2023 | return (0); | |
2024 | } | |
2025 | } | |
ef416fc2 | 2026 | |
e07d4801 | 2027 | DEBUG_printf(("2httpRead2: reading " CUPS_LLFMT " bytes from socket...", |
a603edef | 2028 | CUPS_LLCAST length)); |
ef416fc2 | 2029 | |
b86bc4cf | 2030 | #ifdef WIN32 |
10d09e33 MS |
2031 | while ((bytes = (ssize_t)recv(http->fd, buffer, (int)length, 0)) < 0) |
2032 | { | |
2033 | if (WSAGetLastError() == WSAEWOULDBLOCK) | |
2034 | { | |
2035 | if (!http->timeout_cb || !(*http->timeout_cb)(http, http->timeout_data)) | |
2036 | break; | |
2037 | } | |
2038 | else if (WSAGetLastError() != WSAEINTR) | |
cc754834 | 2039 | break; |
10d09e33 | 2040 | } |
b86bc4cf | 2041 | #else |
ef416fc2 | 2042 | while ((bytes = recv(http->fd, buffer, length, 0)) < 0) |
10d09e33 MS |
2043 | { |
2044 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
2045 | { | |
2046 | if (http->timeout_cb && !(*http->timeout_cb)(http, http->timeout_data)) | |
2047 | break; | |
2048 | else if (!http->timeout_cb && errno != EAGAIN) | |
2049 | break; | |
2050 | } | |
2051 | else if (errno != EINTR) | |
ef416fc2 | 2052 | break; |
10d09e33 | 2053 | } |
b86bc4cf | 2054 | #endif /* WIN32 */ |
ef416fc2 | 2055 | |
e07d4801 | 2056 | DEBUG_printf(("2httpRead2: read " CUPS_LLFMT " bytes from socket...", |
a603edef | 2057 | CUPS_LLCAST bytes)); |
ef416fc2 | 2058 | } |
2059 | ||
2060 | if (bytes > 0) | |
2061 | { | |
2062 | http->data_remaining -= bytes; | |
2063 | ||
2064 | if (http->data_remaining <= INT_MAX) | |
2065 | http->_data_remaining = (int)http->data_remaining; | |
2066 | else | |
2067 | http->_data_remaining = INT_MAX; | |
2068 | } | |
2069 | else if (bytes < 0) | |
2070 | { | |
2071 | #ifdef WIN32 | |
10d09e33 | 2072 | if (WSAGetLastError() == WSAEINTR) |
cc754834 MS |
2073 | bytes = 0; |
2074 | else | |
2075 | http->error = WSAGetLastError(); | |
ef416fc2 | 2076 | #else |
10d09e33 | 2077 | if (errno == EINTR || (errno == EAGAIN && !http->timeout_cb)) |
ef416fc2 | 2078 | bytes = 0; |
2079 | else | |
2080 | http->error = errno; | |
2081 | #endif /* WIN32 */ | |
2082 | } | |
2083 | else | |
2084 | { | |
2085 | http->error = EPIPE; | |
2086 | return (0); | |
2087 | } | |
2088 | ||
2089 | if (http->data_remaining == 0) | |
2090 | { | |
2091 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
2092 | httpGets(len, sizeof(len), http); | |
2093 | ||
2094 | if (http->data_encoding != HTTP_ENCODE_CHUNKED) | |
2095 | { | |
2096 | if (http->state == HTTP_POST_RECV) | |
2097 | http->state ++; | |
2098 | else | |
2099 | http->state = HTTP_WAITING; | |
2100 | } | |
2101 | } | |
2102 | ||
2103 | #ifdef DEBUG | |
ae71f5de | 2104 | http_debug_hex("httpRead2", buffer, (int)bytes); |
ef416fc2 | 2105 | #endif /* DEBUG */ |
2106 | ||
2107 | return (bytes); | |
2108 | } | |
2109 | ||
2110 | ||
2111 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
2112 | /* | |
411affcf | 2113 | * '_httpReadCDSA()' - Read function for the CDSA library. |
ef416fc2 | 2114 | */ |
2115 | ||
2116 | OSStatus /* O - -1 on error, 0 on success */ | |
2117 | _httpReadCDSA( | |
2118 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
2119 | void *data, /* I - Data buffer */ | |
2120 | size_t *dataLength) /* IO - Number of bytes */ | |
2121 | { | |
411affcf | 2122 | OSStatus result; /* Return value */ |
2123 | ssize_t bytes; /* Number of bytes read */ | |
2124 | http_t *http; /* HTTP connection */ | |
2125 | ||
2126 | ||
2127 | http = (http_t *)connection; | |
e53920b9 | 2128 | |
411affcf | 2129 | if (!http->blocking) |
2130 | { | |
2131 | /* | |
2132 | * Make sure we have data before we read... | |
2133 | */ | |
e53920b9 | 2134 | |
f228370c | 2135 | while (!_httpWait(http, 10000, 0)) |
411affcf | 2136 | { |
f228370c MS |
2137 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2138 | continue; | |
2139 | ||
411affcf | 2140 | http->error = ETIMEDOUT; |
2141 | return (-1); | |
2142 | } | |
2143 | } | |
ef416fc2 | 2144 | |
b423cd4c | 2145 | do |
411affcf | 2146 | { |
2147 | bytes = recv(http->fd, data, *dataLength, 0); | |
2148 | } | |
e07d4801 | 2149 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 2150 | |
b423cd4c | 2151 | if (bytes == *dataLength) |
411affcf | 2152 | { |
b423cd4c | 2153 | result = 0; |
411affcf | 2154 | } |
b423cd4c | 2155 | else if (bytes > 0) |
2156 | { | |
2157 | *dataLength = bytes; | |
2158 | result = errSSLWouldBlock; | |
2159 | } | |
2160 | else | |
2161 | { | |
2162 | *dataLength = 0; | |
fa73b229 | 2163 | |
2164 | if (bytes == 0) | |
ed486911 | 2165 | result = errSSLClosedGraceful; |
b423cd4c | 2166 | else if (errno == EAGAIN) |
2167 | result = errSSLWouldBlock; | |
b423cd4c | 2168 | else |
ed486911 | 2169 | result = errSSLClosedAbort; |
ef416fc2 | 2170 | } |
b423cd4c | 2171 | |
411affcf | 2172 | return (result); |
ef416fc2 | 2173 | } |
2174 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
2175 | ||
2176 | ||
411affcf | 2177 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
2178 | /* | |
2179 | * '_httpReadGNUTLS()' - Read function for the GNU TLS library. | |
2180 | */ | |
2181 | ||
2182 | ssize_t /* O - Number of bytes read or -1 on error */ | |
2183 | _httpReadGNUTLS( | |
568fa3fa | 2184 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 2185 | void *data, /* I - Buffer */ |
2186 | size_t length) /* I - Number of bytes to read */ | |
2187 | { | |
2188 | http_t *http; /* HTTP connection */ | |
2189 | ||
2190 | ||
2191 | http = (http_t *)ptr; | |
2192 | ||
2193 | if (!http->blocking) | |
2194 | { | |
2195 | /* | |
2196 | * Make sure we have data before we read... | |
2197 | */ | |
2198 | ||
f228370c | 2199 | while (!_httpWait(http, 10000, 0)) |
411affcf | 2200 | { |
f228370c MS |
2201 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
2202 | continue; | |
2203 | ||
411affcf | 2204 | http->error = ETIMEDOUT; |
2205 | return (-1); | |
2206 | } | |
2207 | } | |
2208 | ||
2209 | return (recv(http->fd, data, length, 0)); | |
2210 | } | |
2211 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
2212 | ||
2213 | ||
ef416fc2 | 2214 | /* |
ecdc0628 | 2215 | * 'httpReconnect()' - Reconnect to a HTTP server. |
ef416fc2 | 2216 | */ |
2217 | ||
2218 | int /* O - 0 on success, non-zero on failure */ | |
568fa3fa | 2219 | httpReconnect(http_t *http) /* I - Connection to server */ |
ef416fc2 | 2220 | { |
2221 | http_addrlist_t *addr; /* Connected address */ | |
1ff0402e MS |
2222 | #ifdef DEBUG |
2223 | http_addrlist_t *current; /* Current address */ | |
2224 | char temp[256]; /* Temporary address string */ | |
2225 | #endif /* DEBUG */ | |
ef416fc2 | 2226 | |
2227 | ||
e07d4801 | 2228 | DEBUG_printf(("httpReconnect(http=%p)", http)); |
ef416fc2 | 2229 | |
2230 | if (!http) | |
2231 | return (-1); | |
2232 | ||
2233 | #ifdef HAVE_SSL | |
2234 | if (http->tls) | |
1ff0402e | 2235 | { |
e07d4801 | 2236 | DEBUG_puts("2httpReconnect: Shutting down SSL/TLS..."); |
ef416fc2 | 2237 | http_shutdown_ssl(http); |
1ff0402e | 2238 | } |
ef416fc2 | 2239 | #endif /* HAVE_SSL */ |
2240 | ||
2241 | /* | |
2242 | * Close any previously open socket... | |
2243 | */ | |
2244 | ||
2245 | if (http->fd >= 0) | |
bd7854cb | 2246 | { |
e07d4801 | 2247 | DEBUG_printf(("2httpReconnect: Closing socket %d...", http->fd)); |
1ff0402e | 2248 | |
ef416fc2 | 2249 | #ifdef WIN32 |
2250 | closesocket(http->fd); | |
2251 | #else | |
2252 | close(http->fd); | |
2253 | #endif /* WIN32 */ | |
2254 | ||
bd7854cb | 2255 | http->fd = -1; |
2256 | } | |
2257 | ||
ef416fc2 | 2258 | /* |
2259 | * Connect to the server... | |
2260 | */ | |
2261 | ||
1ff0402e MS |
2262 | #ifdef DEBUG |
2263 | for (current = http->addrlist; current; current = current->next) | |
e07d4801 | 2264 | DEBUG_printf(("2httpReconnect: Address %s:%d", |
1ff0402e MS |
2265 | httpAddrString(&(current->addr), temp, sizeof(temp)), |
2266 | _httpAddrPort(&(current->addr)))); | |
2267 | #endif /* DEBUG */ | |
2268 | ||
ef416fc2 | 2269 | if ((addr = httpAddrConnect(http->addrlist, &(http->fd))) == NULL) |
2270 | { | |
2271 | /* | |
2272 | * Unable to connect... | |
2273 | */ | |
2274 | ||
2275 | #ifdef WIN32 | |
2276 | http->error = WSAGetLastError(); | |
2277 | #else | |
2278 | http->error = errno; | |
2279 | #endif /* WIN32 */ | |
2280 | http->status = HTTP_ERROR; | |
2281 | ||
e07d4801 | 2282 | DEBUG_printf(("1httpReconnect: httpAddrConnect failed: %s", |
1ff0402e MS |
2283 | strerror(http->error))); |
2284 | ||
ef416fc2 | 2285 | return (-1); |
2286 | } | |
2287 | ||
e07d4801 | 2288 | DEBUG_printf(("2httpReconnect: New socket=%d", http->fd)); |
1ff0402e | 2289 | |
10d09e33 MS |
2290 | if (http->timeout_value.tv_sec > 0) |
2291 | { | |
c8fef167 MS |
2292 | #ifdef WIN32 |
2293 | DWORD timeout_value = http->timeout_value.tv_sec * 1000 + | |
2294 | http->timeout_value.tv_usec / 1000; | |
2295 | /* Timeout in milliseconds */ | |
2296 | ||
2297 | setsockopt(http->fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout_value, | |
2298 | sizeof(timeout_value)); | |
2299 | setsockopt(http->fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout_value, | |
2300 | sizeof(timeout_value)); | |
2301 | #else | |
10d09e33 MS |
2302 | setsockopt(http->fd, SOL_SOCKET, SO_RCVTIMEO, &(http->timeout_value), |
2303 | sizeof(http->timeout_value)); | |
2304 | setsockopt(http->fd, SOL_SOCKET, SO_SNDTIMEO, &(http->timeout_value), | |
2305 | sizeof(http->timeout_value)); | |
c8fef167 | 2306 | #endif /* WIN32 */ |
10d09e33 MS |
2307 | } |
2308 | ||
ef416fc2 | 2309 | http->hostaddr = &(addr->addr); |
2310 | http->error = 0; | |
2311 | http->status = HTTP_CONTINUE; | |
2312 | ||
2313 | #ifdef HAVE_SSL | |
2314 | if (http->encryption == HTTP_ENCRYPT_ALWAYS) | |
2315 | { | |
2316 | /* | |
2317 | * Always do encryption via SSL. | |
2318 | */ | |
2319 | ||
2320 | if (http_setup_ssl(http) != 0) | |
2321 | { | |
f7deaa1a | 2322 | # ifdef WIN32 |
ef416fc2 | 2323 | closesocket(http->fd); |
f7deaa1a | 2324 | # else |
ef416fc2 | 2325 | close(http->fd); |
f7deaa1a | 2326 | # endif /* WIN32 */ |
ef416fc2 | 2327 | |
2328 | return (-1); | |
2329 | } | |
2330 | } | |
2331 | else if (http->encryption == HTTP_ENCRYPT_REQUIRED) | |
2332 | return (http_upgrade(http)); | |
2333 | #endif /* HAVE_SSL */ | |
2334 | ||
e07d4801 | 2335 | DEBUG_printf(("1httpReconnect: Connected to %s:%d...", |
1ff0402e MS |
2336 | httpAddrString(http->hostaddr, temp, sizeof(temp)), |
2337 | _httpAddrPort(http->hostaddr))); | |
2338 | ||
ef416fc2 | 2339 | return (0); |
2340 | } | |
2341 | ||
2342 | ||
355e94dc MS |
2343 | /* |
2344 | * 'httpSetAuthString()' - Set the current authorization string. | |
2345 | * | |
2346 | * This function just stores a copy of the current authorization string in | |
2347 | * the HTTP connection object. You must still call httpSetField() to set | |
2348 | * HTTP_FIELD_AUTHORIZATION prior to issuing a HTTP request using httpGet(), | |
2349 | * httpHead(), httpOptions(), httpPost, or httpPut(). | |
2350 | * | |
426c6a59 | 2351 | * @since CUPS 1.3/Mac OS X 10.5@ |
355e94dc MS |
2352 | */ |
2353 | ||
2354 | void | |
568fa3fa | 2355 | httpSetAuthString(http_t *http, /* I - Connection to server */ |
355e94dc MS |
2356 | const char *scheme, /* I - Auth scheme (NULL to clear it) */ |
2357 | const char *data) /* I - Auth data (NULL for none) */ | |
2358 | { | |
2359 | /* | |
2360 | * Range check input... | |
2361 | */ | |
2362 | ||
2363 | if (!http) | |
2364 | return; | |
2365 | ||
2366 | if (http->authstring && http->authstring != http->_authstring) | |
2367 | free(http->authstring); | |
2368 | ||
2369 | http->authstring = http->_authstring; | |
2370 | ||
2371 | if (scheme) | |
2372 | { | |
2373 | /* | |
2374 | * Set the current authorization string... | |
2375 | */ | |
2376 | ||
2377 | int len = (int)strlen(scheme) + (data ? (int)strlen(data) + 1 : 0) + 1; | |
91c84a35 | 2378 | char *temp; |
355e94dc MS |
2379 | |
2380 | if (len > (int)sizeof(http->_authstring)) | |
91c84a35 MS |
2381 | { |
2382 | if ((temp = malloc(len)) == NULL) | |
2383 | len = sizeof(http->_authstring); | |
2384 | else | |
2385 | http->authstring = temp; | |
2386 | } | |
355e94dc MS |
2387 | |
2388 | if (data) | |
2389 | snprintf(http->authstring, len, "%s %s", scheme, data); | |
2390 | else | |
2391 | strlcpy(http->authstring, scheme, len); | |
2392 | } | |
2393 | else | |
2394 | { | |
2395 | /* | |
2396 | * Clear the current authorization string... | |
2397 | */ | |
2398 | ||
2399 | http->_authstring[0] = '\0'; | |
2400 | } | |
2401 | } | |
2402 | ||
2403 | ||
7cf5915e MS |
2404 | /* |
2405 | * 'httpSetCredentials()' - Set the credentials associated with an encrypted | |
2406 | * connection. | |
2407 | * | |
321d8d57 | 2408 | * @since CUPS 1.5/Mac OS X 10.7@ |
7cf5915e MS |
2409 | */ |
2410 | ||
2411 | int /* O - Status of call (0 = success) */ | |
2412 | httpSetCredentials(http_t *http, /* I - Connection to server */ | |
2413 | cups_array_t *credentials) /* I - Array of credentials */ | |
2414 | { | |
2415 | if (!http || cupsArrayCount(credentials) < 1) | |
2416 | return (-1); | |
2417 | ||
2418 | _httpFreeCredentials(http->tls_credentials); | |
2419 | ||
2420 | http->tls_credentials = _httpConvertCredentials(credentials); | |
2421 | ||
2422 | return (http->tls_credentials ? 0 : -1); | |
2423 | } | |
2424 | ||
2425 | ||
ef416fc2 | 2426 | /* |
6d2f911b | 2427 | * 'httpSetCookie()' - Set the cookie value(s). |
ef416fc2 | 2428 | * |
426c6a59 | 2429 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 2430 | */ |
2431 | ||
2432 | void | |
2433 | httpSetCookie(http_t *http, /* I - Connection */ | |
2434 | const char *cookie) /* I - Cookie string */ | |
2435 | { | |
2436 | if (!http) | |
2437 | return; | |
2438 | ||
2439 | if (http->cookie) | |
2440 | free(http->cookie); | |
2441 | ||
2442 | if (cookie) | |
2443 | http->cookie = strdup(cookie); | |
2444 | else | |
2445 | http->cookie = NULL; | |
2446 | } | |
2447 | ||
2448 | ||
b423cd4c | 2449 | /* |
2450 | * 'httpSetExpect()' - Set the Expect: header in a request. | |
2451 | * | |
2452 | * Currently only HTTP_CONTINUE is supported for the "expect" argument. | |
2453 | * | |
426c6a59 | 2454 | * @since CUPS 1.2/Mac OS X 10.5@ |
b423cd4c | 2455 | */ |
2456 | ||
2457 | void | |
568fa3fa | 2458 | httpSetExpect(http_t *http, /* I - Connection to server */ |
b423cd4c | 2459 | http_status_t expect) /* I - HTTP status to expect (HTTP_CONTINUE) */ |
2460 | { | |
2461 | if (http) | |
2462 | http->expect = expect; | |
2463 | } | |
2464 | ||
2465 | ||
ef416fc2 | 2466 | /* |
2467 | * 'httpSetField()' - Set the value of an HTTP header. | |
2468 | */ | |
2469 | ||
2470 | void | |
568fa3fa | 2471 | httpSetField(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2472 | http_field_t field, /* I - Field index */ |
2473 | const char *value) /* I - Value */ | |
2474 | { | |
2475 | if (http == NULL || | |
2476 | field < HTTP_FIELD_ACCEPT_LANGUAGE || | |
2477 | field > HTTP_FIELD_WWW_AUTHENTICATE || | |
2478 | value == NULL) | |
2479 | return; | |
2480 | ||
2481 | strlcpy(http->fields[field], value, HTTP_MAX_VALUE); | |
f7deaa1a | 2482 | |
f7deaa1a | 2483 | if (field == HTTP_FIELD_AUTHORIZATION) |
2484 | { | |
e07d4801 MS |
2485 | /* |
2486 | * Special case for Authorization: as its contents can be | |
2487 | * longer than HTTP_MAX_VALUE | |
2488 | */ | |
2489 | ||
f7deaa1a | 2490 | if (http->field_authorization) |
2491 | free(http->field_authorization); | |
2492 | ||
2493 | http->field_authorization = strdup(value); | |
2494 | } | |
e07d4801 MS |
2495 | else if (field == HTTP_FIELD_HOST) |
2496 | { | |
2497 | /* | |
f11a948a MS |
2498 | * Special-case for Host: as we don't want a trailing "." on the hostname and |
2499 | * need to bracket IPv6 numeric addresses. | |
e07d4801 MS |
2500 | */ |
2501 | ||
178cb736 MS |
2502 | char *ptr = strchr(value, ':'); |
2503 | ||
2504 | if (value[0] != '[' && ptr && strchr(ptr + 1, ':')) | |
f11a948a MS |
2505 | { |
2506 | /* | |
2507 | * Bracket IPv6 numeric addresses... | |
2508 | * | |
2509 | * This is slightly inefficient (basically copying twice), but is an edge | |
2510 | * case and not worth optimizing... | |
2511 | */ | |
e07d4801 | 2512 | |
f11a948a MS |
2513 | snprintf(http->fields[HTTP_FIELD_HOST], |
2514 | sizeof(http->fields[HTTP_FIELD_HOST]), "[%s]", value); | |
2515 | } | |
2516 | else | |
e07d4801 | 2517 | { |
f11a948a MS |
2518 | /* |
2519 | * Check for a trailing dot on the hostname... | |
2520 | */ | |
2521 | ||
178cb736 | 2522 | ptr = http->fields[HTTP_FIELD_HOST]; |
f11a948a MS |
2523 | |
2524 | if (*ptr) | |
2525 | { | |
2526 | ptr += strlen(ptr) - 1; | |
e07d4801 | 2527 | |
f11a948a MS |
2528 | if (*ptr == '.') |
2529 | *ptr = '\0'; | |
2530 | } | |
e07d4801 MS |
2531 | } |
2532 | } | |
ef416fc2 | 2533 | } |
2534 | ||
2535 | ||
2536 | /* | |
2537 | * 'httpSetLength()' - Set the content-length and content-encoding. | |
2538 | * | |
426c6a59 | 2539 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 2540 | */ |
2541 | ||
2542 | void | |
568fa3fa | 2543 | httpSetLength(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2544 | size_t length) /* I - Length (0 for chunked) */ |
2545 | { | |
2546 | if (!http) | |
2547 | return; | |
2548 | ||
2549 | if (!length) | |
2550 | { | |
2551 | strcpy(http->fields[HTTP_FIELD_TRANSFER_ENCODING], "chunked"); | |
2552 | http->fields[HTTP_FIELD_CONTENT_LENGTH][0] = '\0'; | |
2553 | } | |
2554 | else | |
2555 | { | |
2556 | http->fields[HTTP_FIELD_TRANSFER_ENCODING][0] = '\0'; | |
2557 | snprintf(http->fields[HTTP_FIELD_CONTENT_LENGTH], HTTP_MAX_VALUE, | |
2558 | CUPS_LLFMT, CUPS_LLCAST length); | |
2559 | } | |
2560 | } | |
2561 | ||
2562 | ||
10d09e33 | 2563 | /* |
f228370c | 2564 | * 'httpSetTimeout()' - Set read/write timeouts and an optional callback. |
10d09e33 MS |
2565 | * |
2566 | * The optional timeout callback receives both the HTTP connection and a user | |
f228370c MS |
2567 | * data pointer and must return 1 to continue or 0 to error (time) out. |
2568 | * | |
2569 | * @since CUPS 1.5/Mac OS X 10.7@ | |
10d09e33 MS |
2570 | */ |
2571 | ||
2572 | void | |
f228370c MS |
2573 | httpSetTimeout( |
2574 | http_t *http, /* I - Connection to server */ | |
2575 | double timeout, /* I - Number of seconds for timeout, | |
10d09e33 | 2576 | must be greater than 0 */ |
f228370c MS |
2577 | http_timeout_cb_t cb, /* I - Callback function or NULL */ |
2578 | void *user_data) /* I - User data pointer */ | |
10d09e33 MS |
2579 | { |
2580 | if (!http || timeout <= 0.0) | |
2581 | return; | |
2582 | ||
2583 | http->timeout_cb = cb; | |
2584 | http->timeout_data = user_data; | |
2585 | http->timeout_value.tv_sec = (int)timeout; | |
2586 | http->timeout_value.tv_usec = (int)(timeout * 1000000) % 1000000; | |
2587 | ||
2588 | if (http->fd >= 0) | |
2589 | { | |
c8fef167 MS |
2590 | #ifdef WIN32 |
2591 | DWORD timeout_value = http->timeout_value.tv_sec * 1000 + | |
2592 | http->timeout_value.tv_usec / 1000; | |
2593 | /* Timeout in milliseconds */ | |
2594 | ||
2595 | setsockopt(http->fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout_value, | |
2596 | sizeof(timeout_value)); | |
2597 | setsockopt(http->fd, SOL_SOCKET, SO_SNDTIMEO, (char *)&timeout_value, | |
2598 | sizeof(timeout_value)); | |
f228370c | 2599 | |
c8fef167 | 2600 | #else |
10d09e33 MS |
2601 | setsockopt(http->fd, SOL_SOCKET, SO_RCVTIMEO, &(http->timeout_value), |
2602 | sizeof(http->timeout_value)); | |
2603 | setsockopt(http->fd, SOL_SOCKET, SO_SNDTIMEO, &(http->timeout_value), | |
2604 | sizeof(http->timeout_value)); | |
c8fef167 | 2605 | #endif /* WIN32 */ |
10d09e33 MS |
2606 | } |
2607 | } | |
2608 | ||
2609 | ||
ef416fc2 | 2610 | /* |
2611 | * 'httpTrace()' - Send an TRACE request to the server. | |
2612 | */ | |
2613 | ||
2614 | int /* O - Status of call (0 = success) */ | |
568fa3fa | 2615 | httpTrace(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2616 | const char *uri) /* I - URI for trace */ |
2617 | { | |
2618 | return (http_send(http, HTTP_TRACE, uri)); | |
2619 | } | |
2620 | ||
2621 | ||
2622 | /* | |
e60ec91f MS |
2623 | * '_httpUpdate()' - Update the current HTTP status for incoming data. |
2624 | * | |
2625 | * Note: Unlike httpUpdate(), this function does not flush pending write data | |
2626 | * and only retrieves a single status line from the HTTP connection. | |
ef416fc2 | 2627 | */ |
2628 | ||
e60ec91f MS |
2629 | int /* O - 1 to continue, 0 to stop */ |
2630 | _httpUpdate(http_t *http, /* I - Connection to server */ | |
2631 | http_status_t *status) /* O - Current HTTP status */ | |
ef416fc2 | 2632 | { |
2633 | char line[32768], /* Line from connection... */ | |
2634 | *value; /* Pointer to value on line */ | |
2635 | http_field_t field; /* Field index */ | |
e60ec91f | 2636 | int major, minor; /* HTTP version numbers */ |
ef416fc2 | 2637 | |
2638 | ||
e60ec91f | 2639 | DEBUG_printf(("_httpUpdate(http=%p, status=%p), state=%s", http, status, |
f11a948a | 2640 | http_states[http->state])); |
ef416fc2 | 2641 | |
2642 | /* | |
e60ec91f | 2643 | * Grab a single line from the connection... |
ef416fc2 | 2644 | */ |
2645 | ||
e60ec91f | 2646 | if (!httpGets(line, sizeof(line), http)) |
ef416fc2 | 2647 | { |
e60ec91f MS |
2648 | *status = HTTP_ERROR; |
2649 | return (0); | |
ef416fc2 | 2650 | } |
2651 | ||
e60ec91f | 2652 | DEBUG_printf(("2_httpUpdate: Got \"%s\"", line)); |
ef416fc2 | 2653 | |
e60ec91f | 2654 | if (line[0] == '\0') |
ef416fc2 | 2655 | { |
e60ec91f MS |
2656 | /* |
2657 | * Blank line means the start of the data section (if any). Return | |
2658 | * the result code, too... | |
2659 | * | |
2660 | * If we get status 100 (HTTP_CONTINUE), then we *don't* change states. | |
2661 | * Instead, we just return HTTP_CONTINUE to the caller and keep on | |
2662 | * tryin'... | |
2663 | */ | |
ef416fc2 | 2664 | |
e60ec91f | 2665 | if (http->status == HTTP_CONTINUE) |
ef416fc2 | 2666 | { |
e60ec91f MS |
2667 | *status = http->status; |
2668 | return (0); | |
2669 | } | |
ef416fc2 | 2670 | |
e60ec91f MS |
2671 | if (http->status < HTTP_BAD_REQUEST) |
2672 | http->digest_tries = 0; | |
ef416fc2 | 2673 | |
2674 | #ifdef HAVE_SSL | |
e60ec91f MS |
2675 | if (http->status == HTTP_SWITCHING_PROTOCOLS && !http->tls) |
2676 | { | |
2677 | if (http_setup_ssl(http) != 0) | |
ef416fc2 | 2678 | { |
ef416fc2 | 2679 | # ifdef WIN32 |
e60ec91f | 2680 | closesocket(http->fd); |
ef416fc2 | 2681 | # else |
e60ec91f | 2682 | close(http->fd); |
ef416fc2 | 2683 | # endif /* WIN32 */ |
2684 | ||
e60ec91f MS |
2685 | *status = http->status = HTTP_ERROR; |
2686 | return (0); | |
ef416fc2 | 2687 | } |
e60ec91f MS |
2688 | |
2689 | *status = HTTP_CONTINUE; | |
2690 | return (0); | |
2691 | } | |
ef416fc2 | 2692 | #endif /* HAVE_SSL */ |
2693 | ||
e60ec91f | 2694 | httpGetLength2(http); |
ef416fc2 | 2695 | |
e60ec91f MS |
2696 | switch (http->state) |
2697 | { | |
2698 | case HTTP_GET : | |
2699 | case HTTP_POST : | |
2700 | case HTTP_POST_RECV : | |
2701 | case HTTP_PUT : | |
2702 | http->state ++; | |
2703 | case HTTP_POST_SEND : | |
2704 | case HTTP_HEAD : | |
2705 | break; | |
ef416fc2 | 2706 | |
e60ec91f MS |
2707 | default : |
2708 | http->state = HTTP_WAITING; | |
2709 | break; | |
ef416fc2 | 2710 | } |
e60ec91f MS |
2711 | |
2712 | *status = http->status; | |
2713 | return (0); | |
2714 | } | |
2715 | else if (!strncmp(line, "HTTP/", 5)) | |
2716 | { | |
2717 | /* | |
2718 | * Got the beginning of a response... | |
2719 | */ | |
2720 | ||
2721 | int intstatus; /* Status value as an integer */ | |
2722 | ||
2723 | if (sscanf(line, "HTTP/%d.%d%d", &major, &minor, &intstatus) != 3) | |
2724 | { | |
2725 | *status = http->status = HTTP_ERROR; | |
2726 | return (0); | |
2727 | } | |
2728 | ||
2729 | http->version = (http_version_t)(major * 100 + minor); | |
2730 | *status = http->status = (http_status_t)intstatus; | |
2731 | } | |
2732 | else if ((value = strchr(line, ':')) != NULL) | |
2733 | { | |
2734 | /* | |
2735 | * Got a value... | |
2736 | */ | |
2737 | ||
2738 | *value++ = '\0'; | |
2739 | while (_cups_isspace(*value)) | |
2740 | value ++; | |
2741 | ||
2742 | /* | |
2743 | * Be tolerants of servers that send unknown attribute fields... | |
2744 | */ | |
2745 | ||
88f9aafc | 2746 | if (!_cups_strcasecmp(line, "expect")) |
ef416fc2 | 2747 | { |
2748 | /* | |
e60ec91f | 2749 | * "Expect: 100-continue" or similar... |
ef416fc2 | 2750 | */ |
2751 | ||
e60ec91f | 2752 | http->expect = (http_status_t)atoi(value); |
ef416fc2 | 2753 | } |
88f9aafc | 2754 | else if (!_cups_strcasecmp(line, "cookie")) |
ef416fc2 | 2755 | { |
2756 | /* | |
e60ec91f | 2757 | * "Cookie: name=value[; name=value ...]" - replaces previous cookies... |
ef416fc2 | 2758 | */ |
2759 | ||
e60ec91f MS |
2760 | httpSetCookie(http, value); |
2761 | } | |
2762 | else if ((field = http_field(line)) != HTTP_FIELD_UNKNOWN) | |
2763 | httpSetField(http, field, value); | |
2764 | #ifdef DEBUG | |
2765 | else | |
2766 | DEBUG_printf(("1_httpUpdate: unknown field %s seen!", line)); | |
2767 | #endif /* DEBUG */ | |
2768 | } | |
2769 | else | |
2770 | { | |
2771 | DEBUG_printf(("1_httpUpdate: Bad response line \"%s\"!", line)); | |
2772 | *status = http->status = HTTP_ERROR; | |
2773 | return (0); | |
2774 | } | |
ef416fc2 | 2775 | |
e60ec91f MS |
2776 | return (1); |
2777 | } | |
ef416fc2 | 2778 | |
ef416fc2 | 2779 | |
e60ec91f MS |
2780 | /* |
2781 | * 'httpUpdate()' - Update the current HTTP state for incoming data. | |
2782 | */ | |
ef416fc2 | 2783 | |
e60ec91f MS |
2784 | http_status_t /* O - HTTP status */ |
2785 | httpUpdate(http_t *http) /* I - Connection to server */ | |
2786 | { | |
2787 | http_status_t status; /* Request status */ | |
2788 | ||
2789 | ||
2790 | DEBUG_printf(("httpUpdate(http=%p), state=%s", http, | |
2791 | http_states[http->state])); | |
2792 | ||
2793 | /* | |
2794 | * Flush pending data, if any... | |
2795 | */ | |
2796 | ||
2797 | if (http->wused) | |
2798 | { | |
2799 | DEBUG_puts("2httpUpdate: flushing buffer..."); | |
2800 | ||
2801 | if (httpFlushWrite(http) < 0) | |
ef416fc2 | 2802 | return (HTTP_ERROR); |
ef416fc2 | 2803 | } |
2804 | ||
e60ec91f MS |
2805 | /* |
2806 | * If we haven't issued any commands, then there is nothing to "update"... | |
2807 | */ | |
2808 | ||
2809 | if (http->state == HTTP_WAITING) | |
2810 | return (HTTP_CONTINUE); | |
2811 | ||
2812 | /* | |
2813 | * Grab all of the lines we can from the connection... | |
2814 | */ | |
2815 | ||
2816 | while (_httpUpdate(http, &status)); | |
2817 | ||
ef416fc2 | 2818 | /* |
2819 | * See if there was an error... | |
2820 | */ | |
2821 | ||
2822 | if (http->error == EPIPE && http->status > HTTP_CONTINUE) | |
e07d4801 MS |
2823 | { |
2824 | DEBUG_printf(("1httpUpdate: Returning status %d...", http->status)); | |
ef416fc2 | 2825 | return (http->status); |
e07d4801 | 2826 | } |
ef416fc2 | 2827 | |
2828 | if (http->error) | |
2829 | { | |
e07d4801 | 2830 | DEBUG_printf(("1httpUpdate: socket error %d - %s", http->error, |
ef416fc2 | 2831 | strerror(http->error))); |
2832 | http->status = HTTP_ERROR; | |
2833 | return (HTTP_ERROR); | |
2834 | } | |
2835 | ||
2836 | /* | |
e60ec91f | 2837 | * Return the current status... |
ef416fc2 | 2838 | */ |
2839 | ||
e60ec91f | 2840 | return (status); |
ef416fc2 | 2841 | } |
2842 | ||
2843 | ||
38e73f87 MS |
2844 | /* |
2845 | * '_httpWait()' - Wait for data available on a connection (no flush). | |
2846 | */ | |
2847 | ||
2848 | int /* O - 1 if data is available, 0 otherwise */ | |
2849 | _httpWait(http_t *http, /* I - Connection to server */ | |
2850 | int msec, /* I - Milliseconds to wait */ | |
2851 | int usessl) /* I - Use SSL context? */ | |
2852 | { | |
2853 | #ifdef HAVE_POLL | |
2854 | struct pollfd pfd; /* Polled file descriptor */ | |
2855 | #else | |
2856 | fd_set input_set; /* select() input set */ | |
2857 | struct timeval timeout; /* Timeout */ | |
2858 | #endif /* HAVE_POLL */ | |
2859 | int nfds; /* Result from select()/poll() */ | |
2860 | ||
2861 | ||
e07d4801 | 2862 | DEBUG_printf(("4_httpWait(http=%p, msec=%d, usessl=%d)", http, msec, usessl)); |
38e73f87 MS |
2863 | |
2864 | if (http->fd < 0) | |
f8b3a85b MS |
2865 | { |
2866 | DEBUG_printf(("5_httpWait: Returning 0 since fd=%d", http->fd)); | |
38e73f87 | 2867 | return (0); |
f8b3a85b | 2868 | } |
38e73f87 MS |
2869 | |
2870 | /* | |
2871 | * Check the SSL/TLS buffers for data first... | |
2872 | */ | |
2873 | ||
2874 | #ifdef HAVE_SSL | |
2875 | if (http->tls && usessl) | |
2876 | { | |
2877 | # ifdef HAVE_LIBSSL | |
7cf5915e | 2878 | if (SSL_pending(http->tls)) |
f8b3a85b MS |
2879 | { |
2880 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2881 | return (1); |
f8b3a85b MS |
2882 | } |
2883 | ||
38e73f87 | 2884 | # elif defined(HAVE_GNUTLS) |
7cf5915e | 2885 | if (gnutls_record_check_pending(http->tls)) |
f8b3a85b MS |
2886 | { |
2887 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2888 | return (1); |
f8b3a85b MS |
2889 | } |
2890 | ||
38e73f87 MS |
2891 | # elif defined(HAVE_CDSASSL) |
2892 | size_t bytes; /* Bytes that are available */ | |
2893 | ||
7cf5915e | 2894 | if (!SSLGetBufferedReadSize(http->tls, &bytes) && |
38e73f87 | 2895 | bytes > 0) |
f8b3a85b MS |
2896 | { |
2897 | DEBUG_puts("5_httpWait: Return 1 since there is pending SSL data."); | |
38e73f87 | 2898 | return (1); |
f8b3a85b | 2899 | } |
38e73f87 MS |
2900 | # endif /* HAVE_LIBSSL */ |
2901 | } | |
2902 | #endif /* HAVE_SSL */ | |
2903 | ||
2904 | /* | |
2905 | * Then try doing a select() or poll() to poll the socket... | |
2906 | */ | |
2907 | ||
2908 | #ifdef HAVE_POLL | |
2909 | pfd.fd = http->fd; | |
2910 | pfd.events = POLLIN; | |
2911 | ||
e07d4801 MS |
2912 | while ((nfds = poll(&pfd, 1, msec)) < 0 && |
2913 | (errno == EINTR || errno == EAGAIN)); | |
38e73f87 MS |
2914 | |
2915 | #else | |
2916 | do | |
2917 | { | |
2918 | FD_ZERO(&input_set); | |
2919 | FD_SET(http->fd, &input_set); | |
2920 | ||
e07d4801 | 2921 | DEBUG_printf(("6_httpWait: msec=%d, http->fd=%d", msec, http->fd)); |
38e73f87 MS |
2922 | |
2923 | if (msec >= 0) | |
2924 | { | |
2925 | timeout.tv_sec = msec / 1000; | |
2926 | timeout.tv_usec = (msec % 1000) * 1000; | |
2927 | ||
2928 | nfds = select(http->fd + 1, &input_set, NULL, NULL, &timeout); | |
2929 | } | |
2930 | else | |
2931 | nfds = select(http->fd + 1, &input_set, NULL, NULL, NULL); | |
2932 | ||
e07d4801 | 2933 | DEBUG_printf(("6_httpWait: select() returned %d...", nfds)); |
38e73f87 MS |
2934 | } |
2935 | # ifdef WIN32 | |
cc754834 MS |
2936 | while (nfds < 0 && (WSAGetLastError() == WSAEINTR || |
2937 | WSAGetLastError() == WSAEWOULDBLOCK)); | |
38e73f87 | 2938 | # else |
e07d4801 | 2939 | while (nfds < 0 && (errno == EINTR || errno == EAGAIN)); |
38e73f87 MS |
2940 | # endif /* WIN32 */ |
2941 | #endif /* HAVE_POLL */ | |
2942 | ||
f8b3a85b MS |
2943 | DEBUG_printf(("5_httpWait: returning with nfds=%d, errno=%d...", nfds, |
2944 | errno)); | |
38e73f87 MS |
2945 | |
2946 | return (nfds > 0); | |
2947 | } | |
2948 | ||
2949 | ||
ef416fc2 | 2950 | /* |
2951 | * 'httpWait()' - Wait for data available on a connection. | |
2952 | * | |
426c6a59 | 2953 | * @since CUPS 1.1.19/Mac OS X 10.3@ |
ef416fc2 | 2954 | */ |
2955 | ||
2956 | int /* O - 1 if data is available, 0 otherwise */ | |
568fa3fa | 2957 | httpWait(http_t *http, /* I - Connection to server */ |
ef416fc2 | 2958 | int msec) /* I - Milliseconds to wait */ |
2959 | { | |
2960 | /* | |
2961 | * First see if there is data in the buffer... | |
2962 | */ | |
2963 | ||
22c9029b MS |
2964 | DEBUG_printf(("2httpWait(http=%p, msec=%d)", http, msec)); |
2965 | ||
ef416fc2 | 2966 | if (http == NULL) |
2967 | return (0); | |
2968 | ||
2969 | if (http->used) | |
22c9029b MS |
2970 | { |
2971 | DEBUG_puts("3httpWait: Returning 1 since there is buffered data ready."); | |
ef416fc2 | 2972 | return (1); |
22c9029b | 2973 | } |
ef416fc2 | 2974 | |
8ca02f3c | 2975 | /* |
2976 | * Flush pending data, if any... | |
2977 | */ | |
2978 | ||
2979 | if (http->wused) | |
2980 | { | |
22c9029b MS |
2981 | DEBUG_puts("3httpWait: Flushing write buffer."); |
2982 | ||
8ca02f3c | 2983 | if (httpFlushWrite(http) < 0) |
2984 | return (0); | |
2985 | } | |
2986 | ||
ef416fc2 | 2987 | /* |
2988 | * If not, check the SSL/TLS buffers and do a select() on the connection... | |
2989 | */ | |
2990 | ||
38e73f87 | 2991 | return (_httpWait(http, msec, 1)); |
ef416fc2 | 2992 | } |
2993 | ||
2994 | ||
2995 | /* | |
2996 | * 'httpWrite()' - Write data to a HTTP connection. | |
a4d04587 | 2997 | * |
2998 | * This function is deprecated. Use the httpWrite2() function which can | |
2999 | * write more than 2GB of data. | |
3000 | * | |
3001 | * @deprecated@ | |
ef416fc2 | 3002 | */ |
ef55b745 | 3003 | |
ef416fc2 | 3004 | int /* O - Number of bytes written */ |
568fa3fa | 3005 | httpWrite(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3006 | const char *buffer, /* I - Buffer for data */ |
3007 | int length) /* I - Number of bytes to write */ | |
3008 | { | |
a4d04587 | 3009 | return ((int)httpWrite2(http, buffer, length)); |
3010 | } | |
3011 | ||
3012 | ||
3013 | /* | |
3014 | * 'httpWrite2()' - Write data to a HTTP connection. | |
ecdc0628 | 3015 | * |
426c6a59 | 3016 | * @since CUPS 1.2/Mac OS X 10.5@ |
a4d04587 | 3017 | */ |
ef55b745 | 3018 | |
a4d04587 | 3019 | ssize_t /* O - Number of bytes written */ |
568fa3fa | 3020 | httpWrite2(http_t *http, /* I - Connection to server */ |
a4d04587 | 3021 | const char *buffer, /* I - Buffer for data */ |
3022 | size_t length) /* I - Number of bytes to write */ | |
3023 | { | |
3024 | ssize_t bytes; /* Bytes written */ | |
ef416fc2 | 3025 | |
3026 | ||
e07d4801 | 3027 | DEBUG_printf(("httpWrite2(http=%p, buffer=%p, length=" CUPS_LLFMT ")", http, |
a603edef | 3028 | buffer, CUPS_LLCAST length)); |
ef416fc2 | 3029 | |
3030 | /* | |
3031 | * Range check input... | |
3032 | */ | |
3033 | ||
3034 | if (http == NULL || buffer == NULL) | |
3035 | return (-1); | |
3036 | ||
3037 | /* | |
3038 | * Mark activity on the connection... | |
3039 | */ | |
3040 | ||
3041 | http->activity = time(NULL); | |
3042 | ||
3043 | /* | |
3044 | * Buffer small writes for better performance... | |
3045 | */ | |
3046 | ||
3047 | if (length > 0) | |
3048 | { | |
3049 | if (http->wused && (length + http->wused) > sizeof(http->wbuffer)) | |
3050 | { | |
e07d4801 MS |
3051 | DEBUG_printf(("2httpWrite2: Flushing buffer (wused=%d, length=" |
3052 | CUPS_LLFMT ")", http->wused, CUPS_LLCAST length)); | |
ef416fc2 | 3053 | |
3054 | httpFlushWrite(http); | |
3055 | } | |
3056 | ||
38e73f87 MS |
3057 | if ((length + http->wused) <= sizeof(http->wbuffer) && |
3058 | length < sizeof(http->wbuffer)) | |
ef416fc2 | 3059 | { |
3060 | /* | |
3061 | * Write to buffer... | |
3062 | */ | |
3063 | ||
e07d4801 | 3064 | DEBUG_printf(("2httpWrite2: Copying " CUPS_LLFMT " bytes to wbuffer...", |
a603edef | 3065 | CUPS_LLCAST length)); |
ef416fc2 | 3066 | |
3067 | memcpy(http->wbuffer + http->wused, buffer, length); | |
b86bc4cf | 3068 | http->wused += (int)length; |
3069 | bytes = (ssize_t)length; | |
ef416fc2 | 3070 | } |
3071 | else | |
3072 | { | |
3073 | /* | |
3074 | * Otherwise write the data directly... | |
3075 | */ | |
3076 | ||
e07d4801 | 3077 | DEBUG_printf(("2httpWrite2: Writing " CUPS_LLFMT " bytes to socket...", |
a603edef | 3078 | CUPS_LLCAST length)); |
ef416fc2 | 3079 | |
3080 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
b86bc4cf | 3081 | bytes = (ssize_t)http_write_chunk(http, buffer, (int)length); |
ef416fc2 | 3082 | else |
b86bc4cf | 3083 | bytes = (ssize_t)http_write(http, buffer, (int)length); |
ef416fc2 | 3084 | |
e07d4801 | 3085 | DEBUG_printf(("2httpWrite2: Wrote " CUPS_LLFMT " bytes...", |
ae71f5de | 3086 | CUPS_LLCAST bytes)); |
ef416fc2 | 3087 | } |
3088 | ||
3089 | if (http->data_encoding == HTTP_ENCODE_LENGTH) | |
3090 | http->data_remaining -= bytes; | |
3091 | } | |
3092 | else | |
3093 | bytes = 0; | |
3094 | ||
3095 | /* | |
3096 | * Handle end-of-request processing... | |
3097 | */ | |
3098 | ||
3099 | if ((http->data_encoding == HTTP_ENCODE_CHUNKED && length == 0) || | |
3100 | (http->data_encoding == HTTP_ENCODE_LENGTH && http->data_remaining == 0)) | |
3101 | { | |
3102 | /* | |
3103 | * Finished with the transfer; unless we are sending POST or PUT | |
3104 | * data, go idle... | |
3105 | */ | |
3106 | ||
e07d4801 | 3107 | DEBUG_puts("2httpWrite: changing states..."); |
ef416fc2 | 3108 | |
3109 | if (http->wused) | |
3110 | httpFlushWrite(http); | |
3111 | ||
3112 | if (http->data_encoding == HTTP_ENCODE_CHUNKED) | |
3113 | { | |
3114 | /* | |
3115 | * Send a 0-length chunk at the end of the request... | |
3116 | */ | |
3117 | ||
3118 | http_write(http, "0\r\n\r\n", 5); | |
3119 | ||
3120 | /* | |
3121 | * Reset the data state... | |
3122 | */ | |
3123 | ||
3124 | http->data_encoding = HTTP_ENCODE_LENGTH; | |
3125 | http->data_remaining = 0; | |
3126 | } | |
ef416fc2 | 3127 | } |
3128 | ||
3129 | return (bytes); | |
3130 | } | |
3131 | ||
3132 | ||
3133 | #if defined(HAVE_SSL) && defined(HAVE_CDSASSL) | |
3134 | /* | |
411affcf | 3135 | * '_httpWriteCDSA()' - Write function for the CDSA library. |
ef416fc2 | 3136 | */ |
3137 | ||
3138 | OSStatus /* O - -1 on error, 0 on success */ | |
3139 | _httpWriteCDSA( | |
3140 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
3141 | const void *data, /* I - Data buffer */ | |
3142 | size_t *dataLength) /* IO - Number of bytes */ | |
3143 | { | |
411affcf | 3144 | OSStatus result; /* Return value */ |
3145 | ssize_t bytes; /* Number of bytes read */ | |
3146 | http_t *http; /* HTTP connection */ | |
e53920b9 | 3147 | |
3148 | ||
411affcf | 3149 | http = (http_t *)connection; |
ef416fc2 | 3150 | |
b423cd4c | 3151 | do |
411affcf | 3152 | { |
3153 | bytes = write(http->fd, data, *dataLength); | |
3154 | } | |
e07d4801 | 3155 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
fa73b229 | 3156 | |
b423cd4c | 3157 | if (bytes == *dataLength) |
411affcf | 3158 | { |
b423cd4c | 3159 | result = 0; |
411affcf | 3160 | } |
b423cd4c | 3161 | else if (bytes >= 0) |
3162 | { | |
3163 | *dataLength = bytes; | |
3164 | result = errSSLWouldBlock; | |
3165 | } | |
3166 | else | |
3167 | { | |
3168 | *dataLength = 0; | |
ef55b745 | 3169 | |
fa73b229 | 3170 | if (errno == EAGAIN) |
b423cd4c | 3171 | result = errSSLWouldBlock; |
b423cd4c | 3172 | else |
ed486911 | 3173 | result = errSSLClosedAbort; |
ef416fc2 | 3174 | } |
b423cd4c | 3175 | |
411affcf | 3176 | return (result); |
ef416fc2 | 3177 | } |
3178 | #endif /* HAVE_SSL && HAVE_CDSASSL */ | |
3179 | ||
3180 | ||
411affcf | 3181 | #if defined(HAVE_SSL) && defined(HAVE_GNUTLS) |
3182 | /* | |
3183 | * '_httpWriteGNUTLS()' - Write function for the GNU TLS library. | |
3184 | */ | |
3185 | ||
3186 | ssize_t /* O - Number of bytes written or -1 on error */ | |
3187 | _httpWriteGNUTLS( | |
568fa3fa | 3188 | gnutls_transport_ptr ptr, /* I - Connection to server */ |
411affcf | 3189 | const void *data, /* I - Data buffer */ |
3190 | size_t length) /* I - Number of bytes to write */ | |
3191 | { | |
3192 | return (send(((http_t *)ptr)->fd, data, length, 0)); | |
3193 | } | |
3194 | #endif /* HAVE_SSL && HAVE_GNUTLS */ | |
3195 | ||
3196 | ||
3197 | #if defined(HAVE_SSL) && defined(HAVE_LIBSSL) | |
3198 | /* | |
3199 | * 'http_bio_ctrl()' - Control the HTTP connection. | |
3200 | */ | |
3201 | ||
3202 | static long /* O - Result/data */ | |
3203 | http_bio_ctrl(BIO *h, /* I - BIO data */ | |
3204 | int cmd, /* I - Control command */ | |
3205 | long arg1, /* I - First argument */ | |
3206 | void *arg2) /* I - Second argument */ | |
3207 | { | |
3208 | switch (cmd) | |
3209 | { | |
3210 | default : | |
3211 | return (0); | |
3212 | ||
3213 | case BIO_CTRL_RESET : | |
3214 | h->ptr = NULL; | |
3215 | return (0); | |
3216 | ||
3217 | case BIO_C_SET_FILE_PTR : | |
3218 | h->ptr = arg2; | |
3219 | h->init = 1; | |
3220 | return (1); | |
3221 | ||
3222 | case BIO_C_GET_FILE_PTR : | |
3223 | if (arg2) | |
3224 | { | |
3225 | *((void **)arg2) = h->ptr; | |
3226 | return (1); | |
3227 | } | |
3228 | else | |
3229 | return (0); | |
ef55b745 | 3230 | |
411affcf | 3231 | case BIO_CTRL_DUP : |
3232 | case BIO_CTRL_FLUSH : | |
3233 | return (1); | |
3234 | } | |
3235 | } | |
3236 | ||
3237 | ||
3238 | /* | |
3239 | * 'http_bio_free()' - Free OpenSSL data. | |
3240 | */ | |
3241 | ||
3242 | static int /* O - 1 on success, 0 on failure */ | |
3243 | http_bio_free(BIO *h) /* I - BIO data */ | |
3244 | { | |
3245 | if (!h) | |
3246 | return (0); | |
3247 | ||
3248 | if (h->shutdown) | |
3249 | { | |
3250 | h->init = 0; | |
3251 | h->flags = 0; | |
3252 | } | |
3253 | ||
3254 | return (1); | |
3255 | } | |
3256 | ||
3257 | ||
3258 | /* | |
3259 | * 'http_bio_new()' - Initialize an OpenSSL BIO structure. | |
3260 | */ | |
3261 | ||
3262 | static int /* O - 1 on success, 0 on failure */ | |
3263 | http_bio_new(BIO *h) /* I - BIO data */ | |
3264 | { | |
3265 | if (!h) | |
3266 | return (0); | |
3267 | ||
3268 | h->init = 0; | |
3269 | h->num = 0; | |
3270 | h->ptr = NULL; | |
3271 | h->flags = 0; | |
3272 | ||
3273 | return (1); | |
3274 | } | |
3275 | ||
3276 | ||
3277 | /* | |
3278 | * 'http_bio_puts()' - Send a string for OpenSSL. | |
3279 | */ | |
3280 | ||
3281 | static int /* O - Bytes written */ | |
3282 | http_bio_puts(BIO *h, /* I - BIO data */ | |
3283 | const char *str) /* I - String to write */ | |
3284 | { | |
b86bc4cf | 3285 | #ifdef WIN32 |
3286 | return (send(((http_t *)h->ptr)->fd, str, (int)strlen(str), 0)); | |
3287 | #else | |
411affcf | 3288 | return (send(((http_t *)h->ptr)->fd, str, strlen(str), 0)); |
b86bc4cf | 3289 | #endif /* WIN32 */ |
411affcf | 3290 | } |
3291 | ||
3292 | ||
3293 | /* | |
3294 | * 'http_bio_read()' - Read data for OpenSSL. | |
3295 | */ | |
3296 | ||
3297 | static int /* O - Bytes read */ | |
3298 | http_bio_read(BIO *h, /* I - BIO data */ | |
3299 | char *buf, /* I - Buffer */ | |
3300 | int size) /* I - Number of bytes to read */ | |
3301 | { | |
3302 | http_t *http; /* HTTP connection */ | |
3303 | ||
3304 | ||
3305 | http = (http_t *)h->ptr; | |
3306 | ||
3307 | if (!http->blocking) | |
3308 | { | |
3309 | /* | |
3310 | * Make sure we have data before we read... | |
3311 | */ | |
3312 | ||
f228370c | 3313 | while (!_httpWait(http, 10000, 0)) |
411affcf | 3314 | { |
f228370c MS |
3315 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) |
3316 | continue; | |
3317 | ||
b86bc4cf | 3318 | #ifdef WIN32 |
3319 | http->error = WSAETIMEDOUT; | |
3320 | #else | |
411affcf | 3321 | http->error = ETIMEDOUT; |
b86bc4cf | 3322 | #endif /* WIN32 */ |
3323 | ||
411affcf | 3324 | return (-1); |
3325 | } | |
3326 | } | |
3327 | ||
3328 | return (recv(http->fd, buf, size, 0)); | |
3329 | } | |
3330 | ||
3331 | ||
3332 | /* | |
3333 | * 'http_bio_write()' - Write data for OpenSSL. | |
3334 | */ | |
3335 | ||
3336 | static int /* O - Bytes written */ | |
3337 | http_bio_write(BIO *h, /* I - BIO data */ | |
3338 | const char *buf, /* I - Buffer to write */ | |
3339 | int num) /* I - Number of bytes to write */ | |
3340 | { | |
3341 | return (send(((http_t *)h->ptr)->fd, buf, num, 0)); | |
3342 | } | |
3343 | #endif /* HAVE_SSL && HAVE_LIBSSL */ | |
3344 | ||
3345 | ||
ae71f5de MS |
3346 | #ifdef DEBUG |
3347 | /* | |
3348 | * 'http_debug_hex()' - Do a hex dump of a buffer. | |
3349 | */ | |
3350 | ||
3351 | static void | |
3352 | http_debug_hex(const char *prefix, /* I - Prefix for line */ | |
3353 | const char *buffer, /* I - Buffer to dump */ | |
3354 | int bytes) /* I - Bytes to dump */ | |
3355 | { | |
3356 | int i, j, /* Looping vars */ | |
3357 | ch; /* Current character */ | |
3358 | char line[255], /* Line buffer */ | |
3359 | *start, /* Start of line after prefix */ | |
3360 | *ptr; /* Pointer into line */ | |
3361 | ||
3362 | ||
f11a948a | 3363 | if (_cups_debug_fd < 0 || _cups_debug_level < 6) |
dd1abb6b MS |
3364 | return; |
3365 | ||
e07d4801 | 3366 | DEBUG_printf(("6%s: %d bytes:\n", prefix, bytes)); |
ae71f5de | 3367 | |
f11a948a | 3368 | snprintf(line, sizeof(line), "6%s: ", prefix); |
ae71f5de MS |
3369 | start = line + strlen(line); |
3370 | ||
3371 | for (i = 0; i < bytes; i += 16) | |
3372 | { | |
3373 | for (j = 0, ptr = start; j < 16 && (i + j) < bytes; j ++, ptr += 2) | |
3374 | sprintf(ptr, "%02X", buffer[i + j] & 255); | |
3375 | ||
3376 | while (j < 16) | |
3377 | { | |
3378 | strcpy(ptr, " "); | |
3379 | ptr += 2; | |
3380 | j ++; | |
3381 | } | |
3382 | ||
3383 | strcpy(ptr, " "); | |
3384 | ptr += 2; | |
3385 | ||
3386 | for (j = 0; j < 16 && (i + j) < bytes; j ++) | |
3387 | { | |
3388 | ch = buffer[i + j] & 255; | |
3389 | ||
3390 | if (ch < ' ' || ch >= 127) | |
3391 | ch = '.'; | |
3392 | ||
3393 | *ptr++ = ch; | |
3394 | } | |
3395 | ||
3396 | *ptr = '\0'; | |
3397 | DEBUG_puts(line); | |
3398 | } | |
3399 | } | |
3400 | #endif /* DEBUG */ | |
3401 | ||
3402 | ||
ef416fc2 | 3403 | /* |
3404 | * 'http_field()' - Return the field index for a field name. | |
3405 | */ | |
3406 | ||
ae71f5de MS |
3407 | static http_field_t /* O - Field index */ |
3408 | http_field(const char *name) /* I - String name */ | |
ef416fc2 | 3409 | { |
ae71f5de | 3410 | int i; /* Looping var */ |
ef416fc2 | 3411 | |
3412 | ||
3413 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
88f9aafc | 3414 | if (_cups_strcasecmp(name, http_fields[i]) == 0) |
ef416fc2 | 3415 | return ((http_field_t)i); |
3416 | ||
3417 | return (HTTP_FIELD_UNKNOWN); | |
3418 | } | |
3419 | ||
3420 | ||
3421 | #ifdef HAVE_SSL | |
3422 | /* | |
3423 | * 'http_read_ssl()' - Read from a SSL/TLS connection. | |
3424 | */ | |
3425 | ||
3426 | static int /* O - Bytes read */ | |
568fa3fa | 3427 | http_read_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3428 | char *buf, /* I - Buffer to store data */ |
3429 | int len) /* I - Length of buffer */ | |
3430 | { | |
3431 | # if defined(HAVE_LIBSSL) | |
3432 | return (SSL_read((SSL *)(http->tls), buf, len)); | |
3433 | ||
3434 | # elif defined(HAVE_GNUTLS) | |
ef55b745 MS |
3435 | ssize_t result; /* Return value */ |
3436 | ||
3437 | ||
7cf5915e | 3438 | result = gnutls_record_recv(http->tls, buf, len); |
ef55b745 MS |
3439 | |
3440 | if (result < 0 && !errno) | |
3441 | { | |
3442 | /* | |
3443 | * Convert GNU TLS error to errno value... | |
3444 | */ | |
3445 | ||
3446 | switch (result) | |
3447 | { | |
3448 | case GNUTLS_E_INTERRUPTED : | |
3449 | errno = EINTR; | |
3450 | break; | |
3451 | ||
3452 | case GNUTLS_E_AGAIN : | |
3453 | errno = EAGAIN; | |
3454 | break; | |
3455 | ||
3456 | default : | |
3457 | errno = EPIPE; | |
3458 | break; | |
3459 | } | |
3460 | ||
3461 | result = -1; | |
3462 | } | |
3463 | ||
3464 | return ((int)result); | |
ef416fc2 | 3465 | |
3466 | # elif defined(HAVE_CDSASSL) | |
fa73b229 | 3467 | int result; /* Return value */ |
ef416fc2 | 3468 | OSStatus error; /* Error info */ |
3469 | size_t processed; /* Number of bytes processed */ | |
3470 | ||
3471 | ||
7cf5915e | 3472 | error = SSLRead(http->tls, buf, len, &processed); |
ef416fc2 | 3473 | |
fa73b229 | 3474 | switch (error) |
ef416fc2 | 3475 | { |
fa73b229 | 3476 | case 0 : |
3477 | result = (int)processed; | |
3478 | break; | |
84315f46 | 3479 | |
fa73b229 | 3480 | case errSSLWouldBlock : |
b423cd4c | 3481 | if (processed) |
3482 | result = (int)processed; | |
3483 | else | |
3484 | { | |
3485 | result = -1; | |
3486 | errno = EINTR; | |
3487 | } | |
fa73b229 | 3488 | break; |
84315f46 MS |
3489 | |
3490 | case errSSLClosedGraceful : | |
fa73b229 | 3491 | default : |
84315f46 MS |
3492 | if (processed) |
3493 | result = (int)processed; | |
3494 | else | |
3495 | { | |
3496 | result = -1; | |
3497 | errno = EPIPE; | |
3498 | } | |
fa73b229 | 3499 | break; |
ef416fc2 | 3500 | } |
fa73b229 | 3501 | |
3502 | return (result); | |
cc754834 MS |
3503 | # elif defined(HAVE_SSPISSL) |
3504 | return _sspiRead((_sspi_struct_t*) http->tls, buf, len); | |
ef416fc2 | 3505 | # endif /* HAVE_LIBSSL */ |
3506 | } | |
3507 | #endif /* HAVE_SSL */ | |
3508 | ||
3509 | ||
3510 | /* | |
3511 | * 'http_send()' - Send a request with all fields and the trailing blank line. | |
3512 | */ | |
3513 | ||
3514 | static int /* O - 0 on success, non-zero on error */ | |
568fa3fa | 3515 | http_send(http_t *http, /* I - Connection to server */ |
ef416fc2 | 3516 | http_state_t request, /* I - Request code */ |
3517 | const char *uri) /* I - URI */ | |
3518 | { | |
3519 | int i; /* Looping var */ | |
839a51c8 | 3520 | char buf[1024]; /* Encoded URI buffer */ |
ef416fc2 | 3521 | static const char * const codes[] = |
3522 | { /* Request code strings */ | |
3523 | NULL, | |
3524 | "OPTIONS", | |
3525 | "GET", | |
3526 | NULL, | |
3527 | "HEAD", | |
3528 | "POST", | |
3529 | NULL, | |
3530 | NULL, | |
3531 | "PUT", | |
3532 | NULL, | |
3533 | "DELETE", | |
3534 | "TRACE", | |
3535 | "CLOSE" | |
3536 | }; | |
ef416fc2 | 3537 | |
3538 | ||
e07d4801 | 3539 | DEBUG_printf(("7http_send(http=%p, request=HTTP_%s, uri=\"%s\")", |
ef416fc2 | 3540 | http, codes[request], uri)); |
3541 | ||
3542 | if (http == NULL || uri == NULL) | |
3543 | return (-1); | |
3544 | ||
3545 | /* | |
3546 | * Set the User-Agent field if it isn't already... | |
3547 | */ | |
3548 | ||
3549 | if (!http->fields[HTTP_FIELD_USER_AGENT][0]) | |
3550 | httpSetField(http, HTTP_FIELD_USER_AGENT, CUPS_MINIMAL); | |
3551 | ||
3552 | /* | |
3553 | * Encode the URI as needed... | |
3554 | */ | |
3555 | ||
839a51c8 | 3556 | _httpEncodeURI(buf, uri, sizeof(buf)); |
ef416fc2 | 3557 | |
3558 | /* | |
3559 | * See if we had an error the last time around; if so, reconnect... | |
3560 | */ | |
3561 | ||
3562 | if (http->status == HTTP_ERROR || http->status >= HTTP_BAD_REQUEST) | |
fa73b229 | 3563 | if (httpReconnect(http)) |
3564 | return (-1); | |
ef416fc2 | 3565 | |
d09495fa | 3566 | /* |
3567 | * Flush any written data that is pending... | |
3568 | */ | |
3569 | ||
3570 | if (http->wused) | |
536bc2c6 MS |
3571 | { |
3572 | if (httpFlushWrite(http) < 0) | |
3573 | if (httpReconnect(http)) | |
3574 | return (-1); | |
3575 | } | |
d09495fa | 3576 | |
ef416fc2 | 3577 | /* |
3578 | * Send the request header... | |
3579 | */ | |
3580 | ||
d09495fa | 3581 | http->state = request; |
3582 | http->data_encoding = HTTP_ENCODE_FIELDS; | |
3583 | ||
ef416fc2 | 3584 | if (request == HTTP_POST || request == HTTP_PUT) |
3585 | http->state ++; | |
3586 | ||
3587 | http->status = HTTP_CONTINUE; | |
3588 | ||
3589 | #ifdef HAVE_SSL | |
3590 | if (http->encryption == HTTP_ENCRYPT_REQUIRED && !http->tls) | |
3591 | { | |
3592 | httpSetField(http, HTTP_FIELD_CONNECTION, "Upgrade"); | |
3593 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.0,SSL/2.0,SSL/3.0"); | |
3594 | } | |
3595 | #endif /* HAVE_SSL */ | |
3596 | ||
3597 | if (httpPrintf(http, "%s %s HTTP/1.1\r\n", codes[request], buf) < 1) | |
3598 | { | |
3599 | http->status = HTTP_ERROR; | |
3600 | return (-1); | |
3601 | } | |
3602 | ||
3603 | for (i = 0; i < HTTP_FIELD_MAX; i ++) | |
3604 | if (http->fields[i][0] != '\0') | |
3605 | { | |
e07d4801 | 3606 | DEBUG_printf(("9http_send: %s: %s", http_fields[i], |
ae71f5de | 3607 | httpGetField(http, i))); |
ef416fc2 | 3608 | |
ef55b745 | 3609 | if (httpPrintf(http, "%s: %s\r\n", http_fields[i], |
f7deaa1a | 3610 | httpGetField(http, i)) < 1) |
ef416fc2 | 3611 | { |
3612 | http->status = HTTP_ERROR; | |
3613 | return (-1); | |
3614 | } | |
3615 | } | |
3616 | ||
3617 | if (http->cookie) | |
3618 | if (httpPrintf(http, "Cookie: $Version=0; %s\r\n", http->cookie) < 1) | |
3619 | { | |
3620 | http->status = HTTP_ERROR; | |
3621 | return (-1); | |
3622 | } | |
3623 | ||
b423cd4c | 3624 | if (http->expect == HTTP_CONTINUE && |
3625 | (http->state == HTTP_POST_RECV || http->state == HTTP_PUT_RECV)) | |
3626 | if (httpPrintf(http, "Expect: 100-continue\r\n") < 1) | |
3627 | { | |
3628 | http->status = HTTP_ERROR; | |
3629 | return (-1); | |
3630 | } | |
3631 | ||
ef416fc2 | 3632 | if (httpPrintf(http, "\r\n") < 1) |
3633 | { | |
3634 | http->status = HTTP_ERROR; | |
3635 | return (-1); | |
3636 | } | |
3637 | ||
536bc2c6 MS |
3638 | if (httpFlushWrite(http) < 0) |
3639 | return (-1); | |
3640 | ||
ef416fc2 | 3641 | httpGetLength2(http); |
3642 | httpClearFields(http); | |
3643 | ||
f7deaa1a | 3644 | /* |
b94498cf | 3645 | * The Kerberos and AuthRef authentication strings can only be used once... |
f7deaa1a | 3646 | */ |
3647 | ||
ef55b745 MS |
3648 | if (http->field_authorization && http->authstring && |
3649 | (!strncmp(http->authstring, "Negotiate", 9) || | |
b94498cf | 3650 | !strncmp(http->authstring, "AuthRef", 7))) |
f7deaa1a | 3651 | { |
3652 | http->_authstring[0] = '\0'; | |
3653 | ||
3654 | if (http->authstring != http->_authstring) | |
3655 | free(http->authstring); | |
ef55b745 | 3656 | |
f7deaa1a | 3657 | http->authstring = http->_authstring; |
3658 | } | |
3659 | ||
ef416fc2 | 3660 | return (0); |
3661 | } | |
3662 | ||
3663 | ||
3664 | #ifdef HAVE_SSL | |
82f97232 | 3665 | # if defined(HAVE_CDSASSL) && defined(HAVE_SECCERTIFICATECOPYDATA) |
7cf5915e MS |
3666 | /* |
3667 | * 'http_set_credentials()' - Set the SSL/TLS credentials. | |
3668 | */ | |
3669 | ||
3670 | static int /* O - Status of connection */ | |
3671 | http_set_credentials(http_t *http) /* I - Connection to server */ | |
3672 | { | |
3673 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
7cf5915e MS |
3674 | OSStatus error = 0; /* Error code */ |
3675 | http_tls_credentials_t credentials = NULL; | |
3676 | /* TLS credentials */ | |
7cf5915e MS |
3677 | |
3678 | ||
3679 | DEBUG_printf(("7http_set_credentials(%p)", http)); | |
3680 | ||
7cf5915e MS |
3681 | /* |
3682 | * Prefer connection specific credentials... | |
3683 | */ | |
3684 | ||
3685 | if ((credentials = http->tls_credentials) == NULL) | |
3686 | credentials = cg->tls_credentials; | |
3687 | ||
3688 | # if HAVE_SECPOLICYCREATESSL | |
3689 | /* | |
3690 | * Otherwise root around in the user's keychain to see if one can be found... | |
3691 | */ | |
3692 | ||
3693 | if (!credentials) | |
3694 | { | |
3695 | CFDictionaryRef query; /* Query dictionary */ | |
3696 | CFTypeRef matches = NULL; /* Matching credentials */ | |
3697 | CFArrayRef dn_array = NULL;/* Distinguished names array */ | |
3698 | CFTypeRef keys[] = { kSecClass, | |
3699 | kSecMatchLimit, | |
3700 | kSecReturnRef }; | |
3701 | /* Keys for dictionary */ | |
3702 | CFTypeRef values[] = { kSecClassCertificate, | |
3703 | kSecMatchLimitOne, | |
3704 | kCFBooleanTrue }; | |
3705 | /* Values for dictionary */ | |
3706 | ||
3707 | /* | |
3708 | * Get the names associated with the server. | |
3709 | */ | |
3710 | ||
3711 | if ((error = SSLCopyDistinguishedNames(http->tls, &dn_array)) != noErr) | |
3712 | { | |
3713 | DEBUG_printf(("4http_set_credentials: SSLCopyDistinguishedNames, error=%d", | |
3714 | (int)error)); | |
3715 | return (error); | |
3716 | } | |
3717 | ||
3718 | /* | |
3719 | * Create a query which will return all identities that can sign and match | |
3720 | * the passed in policy. | |
3721 | */ | |
3722 | ||
3723 | query = CFDictionaryCreate(NULL, | |
3724 | (const void**)(&keys[0]), | |
3725 | (const void**)(&values[0]), | |
3726 | sizeof(keys) / sizeof(keys[0]), | |
3727 | &kCFTypeDictionaryKeyCallBacks, | |
3728 | &kCFTypeDictionaryValueCallBacks); | |
3729 | if (query) | |
3730 | { | |
3731 | error = SecItemCopyMatching(query, &matches); | |
3732 | DEBUG_printf(("4http_set_credentials: SecItemCopyMatching, error=%d", | |
3733 | (int)error)); | |
3734 | CFRelease(query); | |
3735 | } | |
3736 | ||
3737 | if (matches) | |
3738 | CFRelease(matches); | |
3739 | ||
3740 | if (dn_array) | |
3741 | CFRelease(dn_array); | |
3742 | } | |
3743 | # endif /* HAVE_SECPOLICYCREATESSL */ | |
3744 | ||
3745 | if (credentials) | |
3746 | { | |
3747 | error = SSLSetCertificate(http->tls, credentials); | |
3748 | DEBUG_printf(("4http_set_credentials: SSLSetCertificate, error=%d", | |
3749 | (int)error)); | |
3750 | } | |
3751 | else | |
3752 | DEBUG_puts("4http_set_credentials: No credentials to set."); | |
3753 | ||
3754 | return (error); | |
7cf5915e | 3755 | } |
82f97232 | 3756 | # endif /* HAVE_CDSASSL && HAVE_SECCERTIFICATECOPYDATA */ |
7cf5915e MS |
3757 | |
3758 | ||
ef416fc2 | 3759 | /* |
3760 | * 'http_setup_ssl()' - Set up SSL/TLS support on a connection. | |
3761 | */ | |
3762 | ||
3763 | static int /* O - Status of connection */ | |
568fa3fa | 3764 | http_setup_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 3765 | { |
7cf5915e MS |
3766 | _cups_globals_t *cg = _cupsGlobals(); |
3767 | /* Pointer to library globals */ | |
3768 | int any_root; /* Allow any root */ | |
3769 | ||
ef416fc2 | 3770 | # ifdef HAVE_LIBSSL |
89d46774 | 3771 | SSL_CTX *context; /* Context for encryption */ |
411affcf | 3772 | BIO *bio; /* BIO data */ |
ef416fc2 | 3773 | # elif defined(HAVE_GNUTLS) |
ef416fc2 | 3774 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 3775 | /* TLS credentials */ |
ef416fc2 | 3776 | # elif defined(HAVE_CDSASSL) |
89d46774 | 3777 | OSStatus error; /* Error code */ |
7cf5915e | 3778 | const char *message = NULL; /* Error message */ |
7cf5915e | 3779 | char *hostname; /* Hostname */ |
82f97232 MS |
3780 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
3781 | cups_array_t *credentials; /* Credentials array */ | |
7cf5915e MS |
3782 | cups_array_t *names; /* CUPS distinguished names */ |
3783 | CFArrayRef dn_array; /* CF distinguished names array */ | |
3784 | CFIndex count; /* Number of credentials */ | |
3785 | CFDataRef data; /* Certificate data */ | |
3786 | int i; /* Looping var */ | |
3787 | http_credential_t | |
3788 | *credential; /* Credential data */ | |
82f97232 | 3789 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
cc754834 MS |
3790 | # elif defined(HAVE_SSPISSL) |
3791 | TCHAR username[256]; /* Username returned from GetUserName() */ | |
3792 | TCHAR commonName[256]; /* Common name for certificate */ | |
3793 | DWORD dwSize; /* 32 bit size */ | |
ef416fc2 | 3794 | # endif /* HAVE_LIBSSL */ |
3795 | ||
3796 | ||
e07d4801 | 3797 | DEBUG_printf(("7http_setup_ssl(http=%p)", http)); |
ef416fc2 | 3798 | |
7cf5915e MS |
3799 | /* |
3800 | * Always allow self-signed certificates for the local loopback address... | |
3801 | */ | |
3802 | ||
3803 | if (httpAddrLocalhost(http->hostaddr)) | |
3804 | any_root = 1; | |
3805 | else | |
3806 | any_root = cg->any_root; | |
3807 | ||
ef416fc2 | 3808 | # ifdef HAVE_LIBSSL |
3809 | context = SSL_CTX_new(SSLv23_client_method()); | |
3810 | ||
3811 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
3812 | ||
411affcf | 3813 | bio = BIO_new(_httpBIOMethods()); |
3814 | BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)http); | |
3815 | ||
7cf5915e MS |
3816 | http->tls = SSL_new(context); |
3817 | SSL_set_bio(http->tls_credentials, bio, bio); | |
ef416fc2 | 3818 | |
7cf5915e | 3819 | if (SSL_connect(http->tls) != 1) |
ef416fc2 | 3820 | { |
3821 | # ifdef DEBUG | |
3822 | unsigned long error; /* Error code */ | |
3823 | ||
3824 | while ((error = ERR_get_error()) != 0) | |
e07d4801 | 3825 | DEBUG_printf(("8http_setup_ssl: %s", ERR_error_string(error, NULL))); |
ef416fc2 | 3826 | # endif /* DEBUG */ |
3827 | ||
3828 | SSL_CTX_free(context); | |
7cf5915e MS |
3829 | SSL_free(http->tls); |
3830 | http->tls = NULL; | |
ef416fc2 | 3831 | |
3832 | # ifdef WIN32 | |
3833 | http->error = WSAGetLastError(); | |
3834 | # else | |
3835 | http->error = errno; | |
3836 | # endif /* WIN32 */ | |
3837 | http->status = HTTP_ERROR; | |
3838 | ||
3839 | return (HTTP_ERROR); | |
3840 | } | |
3841 | ||
3842 | # elif defined(HAVE_GNUTLS) | |
ef416fc2 | 3843 | credentials = (gnutls_certificate_client_credentials *) |
3844 | malloc(sizeof(gnutls_certificate_client_credentials)); | |
3845 | if (credentials == NULL) | |
3846 | { | |
ef416fc2 | 3847 | http->error = errno; |
3848 | http->status = HTTP_ERROR; | |
3849 | ||
3850 | return (-1); | |
3851 | } | |
3852 | ||
3853 | gnutls_certificate_allocate_credentials(credentials); | |
3854 | ||
7cf5915e MS |
3855 | gnutls_init(&http->tls, GNUTLS_CLIENT); |
3856 | gnutls_set_default_priority(http->tls); | |
3857 | gnutls_credentials_set(http->tls, GNUTLS_CRD_CERTIFICATE, *credentials); | |
3858 | gnutls_transport_set_ptr(http->tls, (gnutls_transport_ptr)http); | |
3859 | gnutls_transport_set_pull_function(http->tls, _httpReadGNUTLS); | |
3860 | gnutls_transport_set_push_function(http->tls, _httpWriteGNUTLS); | |
ef416fc2 | 3861 | |
7cf5915e | 3862 | if ((gnutls_handshake(http->tls)) != GNUTLS_E_SUCCESS) |
ef416fc2 | 3863 | { |
3864 | http->error = errno; | |
3865 | http->status = HTTP_ERROR; | |
3866 | ||
7cf5915e | 3867 | gnutls_deinit(http->tls); |
85b5d1df MS |
3868 | gnutls_certificate_free_credentials(*credentials); |
3869 | free(credentials); | |
7cf5915e | 3870 | http->tls = NULL; |
85b5d1df | 3871 | |
ef416fc2 | 3872 | return (-1); |
3873 | } | |
3874 | ||
7cf5915e | 3875 | http->tls_credentials = credentials; |
ef416fc2 | 3876 | |
3877 | # elif defined(HAVE_CDSASSL) | |
7cf5915e | 3878 | if ((error = SSLNewContext(false, &http->tls))) |
e53920b9 | 3879 | { |
89d46774 | 3880 | http->error = error; |
3881 | http->status = HTTP_ERROR; | |
e53920b9 | 3882 | |
89d46774 | 3883 | return (-1); |
e53920b9 | 3884 | } |
ef416fc2 | 3885 | |
7cf5915e MS |
3886 | error = SSLSetConnection(http->tls, http); |
3887 | DEBUG_printf(("4http_setup_ssl: SSLSetConnection, error=%d", (int)error)); | |
3888 | ||
3889 | if (!error) | |
3890 | { | |
3891 | error = SSLSetIOFuncs(http->tls, _httpReadCDSA, _httpWriteCDSA); | |
3892 | DEBUG_printf(("4http_setup_ssl: SSLSetIOFuncs, error=%d", (int)error)); | |
3893 | } | |
3894 | ||
3895 | if (!error) | |
3896 | { | |
3897 | error = SSLSetProtocolVersionEnabled(http->tls, kSSLProtocol2, false); | |
3898 | DEBUG_printf(("4http_setup_ssl: SSLSetProtocolVersionEnabled, error=%d", | |
3899 | (int)error)); | |
3900 | } | |
89d46774 | 3901 | |
7cf5915e MS |
3902 | if (!error) |
3903 | { | |
3904 | error = SSLSetAllowsAnyRoot(http->tls, any_root); | |
3905 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsAnyRoot(%d), error=%d", | |
3906 | any_root, (int)error)); | |
3907 | } | |
89d46774 | 3908 | |
3909 | if (!error) | |
7cf5915e MS |
3910 | { |
3911 | error = SSLSetAllowsExpiredCerts(http->tls, cg->expired_certs); | |
3912 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsExpiredCerts(%d), error=%d", | |
3913 | cg->expired_certs, (int)error)); | |
3914 | } | |
89d46774 | 3915 | |
ef416fc2 | 3916 | if (!error) |
7cf5915e MS |
3917 | { |
3918 | error = SSLSetAllowsExpiredRoots(http->tls, cg->expired_root); | |
3919 | DEBUG_printf(("4http_setup_ssl: SSLSetAllowsExpiredRoots(%d), error=%d", | |
3920 | cg->expired_root, (int)error)); | |
3921 | } | |
ef416fc2 | 3922 | |
82f97232 | 3923 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
ef416fc2 | 3924 | if (!error) |
7cf5915e MS |
3925 | { |
3926 | if (cg->client_cert_cb) | |
3927 | { | |
3928 | error = SSLSetSessionOption(http->tls, | |
3929 | kSSLSessionOptionBreakOnCertRequested, true); | |
3930 | DEBUG_printf(("4http_setup_ssl: kSSLSessionOptionBreakOnCertRequested, " | |
3931 | "error=%d", (int)error)); | |
3932 | } | |
3933 | else | |
3934 | { | |
3935 | error = http_set_credentials(http); | |
3936 | DEBUG_printf(("4http_setup_ssl: http_set_credentials, error=%d", | |
3937 | (int)error)); | |
3938 | } | |
3939 | } | |
3940 | ||
3941 | /* | |
3942 | * If there's a server certificate callback installed let it evaluate the | |
3943 | * certificate(s) during the handshake... | |
3944 | */ | |
3945 | ||
3946 | if (!error && cg->server_cert_cb != NULL) | |
3947 | { | |
3948 | error = SSLSetEnableCertVerify(http->tls, false); | |
3949 | DEBUG_printf(("4http_setup_ssl: SSLSetEnableCertVerify, error=%d", | |
3950 | (int)error)); | |
3951 | ||
3952 | if (!error) | |
3953 | { | |
3954 | error = SSLSetSessionOption(http->tls, | |
3955 | kSSLSessionOptionBreakOnServerAuth, true); | |
3956 | DEBUG_printf(("4http_setup_ssl: kSSLSessionOptionBreakOnServerAuth, " | |
3957 | "error=%d", (int)error)); | |
3958 | } | |
3959 | } | |
82f97232 | 3960 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
ef416fc2 | 3961 | |
ed486911 | 3962 | if (!error) |
7cf5915e MS |
3963 | { |
3964 | hostname = httpAddrLocalhost(http->hostaddr) ? "localhost" : http->hostname; | |
3965 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); | |
3966 | ||
3967 | DEBUG_printf(("4http_setup_ssl: SSLSetPeerDomainName, error=%d", | |
3968 | (int)error)); | |
3969 | } | |
ed486911 | 3970 | |
ef416fc2 | 3971 | if (!error) |
b423cd4c | 3972 | { |
7cf5915e MS |
3973 | int done = 0; /* Are we done yet? */ |
3974 | ||
3975 | while (!error && !done) | |
3976 | { | |
3977 | error = SSLHandshake(http->tls); | |
3978 | ||
3979 | DEBUG_printf(("4_httpWait: SSLHandshake returned %d.", (int)error)); | |
3980 | ||
3981 | switch (error) | |
3982 | { | |
3983 | case noErr : | |
3984 | done = 1; | |
3985 | break; | |
3986 | ||
3987 | case errSSLWouldBlock : | |
3988 | usleep(1000); | |
3989 | break; | |
3990 | ||
82f97232 | 3991 | # ifdef HAVE_SECCERTIFICATECOPYDATA |
7cf5915e MS |
3992 | case errSSLServerAuthCompleted : |
3993 | error = 0; | |
3994 | if (cg->server_cert_cb) | |
3995 | { | |
3996 | error = httpCopyCredentials(http, &credentials); | |
3997 | if (!error) | |
3998 | { | |
3999 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
4000 | cg->server_cert_data); | |
4001 | httpFreeCredentials(credentials); | |
4002 | } | |
4003 | ||
4004 | DEBUG_printf(("4_httpWait: Server certificate callback returned " | |
4005 | "%d.", (int)error)); | |
4006 | } | |
4007 | break; | |
4008 | ||
4009 | case errSSLClientCertRequested : | |
4010 | error = 0; | |
4011 | ||
4012 | if (cg->client_cert_cb) | |
4013 | { | |
4014 | names = NULL; | |
82f97232 | 4015 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && |
7cf5915e MS |
4016 | dn_array) |
4017 | { | |
4018 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
4019 | { | |
4020 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
4021 | { | |
4022 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
4023 | ||
4024 | if ((credential = malloc(sizeof(*credential)))) | |
4025 | { | |
4026 | credential->datalen = CFDataGetLength(data); | |
4027 | if ((credential->data = malloc(credential->datalen))) | |
4028 | { | |
82f97232 | 4029 | memcpy((void *)credential->data, CFDataGetBytePtr(data), |
7cf5915e MS |
4030 | credential->datalen); |
4031 | cupsArrayAdd(names, credential); | |
4032 | } | |
4033 | } | |
4034 | } | |
4035 | } | |
4036 | ||
4037 | CFRelease(dn_array); | |
4038 | } | |
4039 | ||
4040 | if (!error) | |
4041 | { | |
82f97232 | 4042 | error = (cg->client_cert_cb)(http, http->tls, names, |
7cf5915e MS |
4043 | cg->client_cert_data); |
4044 | ||
4045 | DEBUG_printf(("4_httpWait: Client certificate callback " | |
4046 | "returned %d.", (int)error)); | |
4047 | } | |
4048 | ||
4049 | httpFreeCredentials(names); | |
4050 | } | |
4051 | break; | |
82f97232 | 4052 | # endif /* HAVE_SECCERTIFICATECOPYDATA */ |
7cf5915e MS |
4053 | |
4054 | case errSSLUnknownRootCert : | |
4055 | message = _("Unable to establish a secure connection to host " | |
4056 | "(untrusted certificate)."); | |
4057 | break; | |
4058 | ||
4059 | case errSSLNoRootCert : | |
4060 | message = _("Unable to establish a secure connection to host " | |
4061 | "(self-signed certificate)."); | |
4062 | break; | |
4063 | ||
4064 | case errSSLCertExpired : | |
4065 | message = _("Unable to establish a secure connection to host " | |
4066 | "(expired certificate)."); | |
4067 | break; | |
4068 | ||
4069 | case errSSLCertNotYetValid : | |
4070 | message = _("Unable to establish a secure connection to host " | |
4071 | "(certificate not yet valid)."); | |
4072 | break; | |
4073 | ||
4074 | case errSSLHostNameMismatch : | |
4075 | message = _("Unable to establish a secure connection to host " | |
4076 | "(host name mismatch)."); | |
4077 | break; | |
4078 | ||
4079 | case errSSLXCertChainInvalid : | |
4080 | message = _("Unable to establish a secure connection to host " | |
4081 | "(certificate chain invalid)."); | |
4082 | break; | |
4083 | ||
4084 | case errSSLConnectionRefused : | |
4085 | message = _("Unable to establish a secure connection to host " | |
4086 | "(peer dropped connection before responding)."); | |
4087 | break; | |
4088 | ||
4089 | default : | |
4090 | break; | |
4091 | } | |
4092 | } | |
b423cd4c | 4093 | } |
ef416fc2 | 4094 | |
89d46774 | 4095 | if (error) |
ef416fc2 | 4096 | { |
4097 | http->error = error; | |
4098 | http->status = HTTP_ERROR; | |
7cf5915e MS |
4099 | errno = ECONNREFUSED; |
4100 | ||
4101 | SSLDisposeContext(http->tls); | |
4102 | http->tls = NULL; | |
ef416fc2 | 4103 | |
7cf5915e MS |
4104 | /* |
4105 | * If an error string wasn't set by the callbacks use a generic one... | |
4106 | */ | |
4107 | ||
4108 | if (!message) | |
4109 | #ifdef HAVE_CSSMERRORSTRING | |
4110 | message = cssmErrorString(error); | |
4111 | #else | |
4112 | message = _("Unable to establish a secure connection to host."); | |
4113 | #endif /* HAVE_CSSMERRORSTRING */ | |
ef416fc2 | 4114 | |
7cf5915e | 4115 | _cupsSetError(IPP_PKI_ERROR, message, 1); |
ef416fc2 | 4116 | |
cc754834 MS |
4117 | return (-1); |
4118 | } | |
7cf5915e | 4119 | |
cc754834 | 4120 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 4121 | http->tls = _sspiAlloc(); |
cc754834 | 4122 | |
7cf5915e | 4123 | if (!http->tls) |
cc754834 MS |
4124 | return (-1); |
4125 | ||
7cf5915e MS |
4126 | http->tls->sock = http->fd; |
4127 | dwSize = sizeof(username) / sizeof(TCHAR); | |
cc754834 MS |
4128 | GetUserName(username, &dwSize); |
4129 | _sntprintf_s(commonName, sizeof(commonName) / sizeof(TCHAR), | |
4130 | sizeof(commonName) / sizeof(TCHAR), TEXT("CN=%s"), username); | |
4131 | ||
7cf5915e MS |
4132 | if (!_sspiGetCredentials(http->tls_credentials, L"ClientContainer", |
4133 | commonName, FALSE)) | |
cc754834 | 4134 | { |
7cf5915e MS |
4135 | _sspiFree(http->tls_credentials); |
4136 | http->tls_credentials = NULL; | |
cc754834 MS |
4137 | return (-1); |
4138 | } | |
4139 | ||
7cf5915e MS |
4140 | _sspiSetAllowsAnyRoot(http->tls_credentials, TRUE); |
4141 | _sspiSetAllowsExpiredCerts(http->tls_credentials, TRUE); | |
cc754834 | 4142 | |
7cf5915e | 4143 | if (!_sspiConnect(http->tls_credentials, http->hostname)) |
cc754834 | 4144 | { |
7cf5915e MS |
4145 | _sspiFree(http->tls_credentials); |
4146 | http->tls_credentials = NULL; | |
ef416fc2 | 4147 | return (-1); |
4148 | } | |
4149 | # endif /* HAVE_CDSASSL */ | |
4150 | ||
ef416fc2 | 4151 | return (0); |
4152 | } | |
4153 | #endif /* HAVE_SSL */ | |
4154 | ||
4155 | ||
4156 | #ifdef HAVE_SSL | |
4157 | /* | |
4158 | * 'http_shutdown_ssl()' - Shut down SSL/TLS on a connection. | |
4159 | */ | |
4160 | ||
4161 | static void | |
568fa3fa | 4162 | http_shutdown_ssl(http_t *http) /* I - Connection to server */ |
ef416fc2 | 4163 | { |
4164 | # ifdef HAVE_LIBSSL | |
89d46774 | 4165 | SSL_CTX *context; /* Context for encryption */ |
ef416fc2 | 4166 | |
7cf5915e | 4167 | context = SSL_get_SSL_CTX(http->tls_credentials); |
ef416fc2 | 4168 | |
7cf5915e | 4169 | SSL_shutdown(http->tls_credentials); |
ef416fc2 | 4170 | SSL_CTX_free(context); |
7cf5915e | 4171 | SSL_free(http->tls_credentials); |
ef416fc2 | 4172 | |
4173 | # elif defined(HAVE_GNUTLS) | |
ef416fc2 | 4174 | gnutls_certificate_client_credentials *credentials; |
89d46774 | 4175 | /* TLS credentials */ |
ef416fc2 | 4176 | |
7cf5915e | 4177 | credentials = (gnutls_certificate_client_credentials *)(http->tls_credentials); |
ef416fc2 | 4178 | |
7cf5915e MS |
4179 | gnutls_bye(http->tls, GNUTLS_SHUT_RDWR); |
4180 | gnutls_deinit(http->tls); | |
ef416fc2 | 4181 | gnutls_certificate_free_credentials(*credentials); |
4182 | free(credentials); | |
ef416fc2 | 4183 | |
4184 | # elif defined(HAVE_CDSASSL) | |
7cf5915e | 4185 | while (SSLClose(http->tls) == errSSLWouldBlock) |
b423cd4c | 4186 | usleep(1000); |
4187 | ||
7cf5915e | 4188 | SSLDisposeContext(http->tls); |
89d46774 | 4189 | |
7cf5915e MS |
4190 | if (http->tls_credentials) |
4191 | CFRelease(http->tls_credentials); | |
89d46774 | 4192 | |
cc754834 | 4193 | # elif defined(HAVE_SSPISSL) |
7cf5915e | 4194 | _sspiFree(http->tls_credentials); |
ef416fc2 | 4195 | # endif /* HAVE_LIBSSL */ |
4196 | ||
7cf5915e MS |
4197 | http->tls = NULL; |
4198 | http->tls_credentials = NULL; | |
ef416fc2 | 4199 | } |
4200 | #endif /* HAVE_SSL */ | |
4201 | ||
4202 | ||
4203 | #ifdef HAVE_SSL | |
4204 | /* | |
4205 | * 'http_upgrade()' - Force upgrade to TLS encryption. | |
4206 | */ | |
4207 | ||
89d46774 | 4208 | static int /* O - Status of connection */ |
568fa3fa | 4209 | http_upgrade(http_t *http) /* I - Connection to server */ |
ef416fc2 | 4210 | { |
89d46774 | 4211 | int ret; /* Return value */ |
4212 | http_t myhttp; /* Local copy of HTTP data */ | |
ef416fc2 | 4213 | |
4214 | ||
e07d4801 | 4215 | DEBUG_printf(("7http_upgrade(%p)", http)); |
ef416fc2 | 4216 | |
85b5d1df MS |
4217 | /* |
4218 | * Flush the connection to make sure any previous "Upgrade" message | |
4219 | * has been read. | |
4220 | */ | |
4221 | ||
4222 | httpFlush(http); | |
4223 | ||
ef416fc2 | 4224 | /* |
4225 | * Copy the HTTP data to a local variable so we can do the OPTIONS | |
4226 | * request without interfering with the existing request data... | |
4227 | */ | |
4228 | ||
4229 | memcpy(&myhttp, http, sizeof(myhttp)); | |
4230 | ||
4231 | /* | |
4232 | * Send an OPTIONS request to the server, requiring SSL or TLS | |
4233 | * encryption on the link... | |
4234 | */ | |
4235 | ||
f7deaa1a | 4236 | http->field_authorization = NULL; /* Don't free the auth string */ |
4237 | ||
b86bc4cf | 4238 | httpClearFields(http); |
4239 | httpSetField(http, HTTP_FIELD_CONNECTION, "upgrade"); | |
7cf5915e | 4240 | httpSetField(http, HTTP_FIELD_UPGRADE, "TLS/1.2, TLS/1.1, TLS/1.0, SSL/3.0"); |
ef416fc2 | 4241 | |
b86bc4cf | 4242 | if ((ret = httpOptions(http, "*")) == 0) |
ef416fc2 | 4243 | { |
4244 | /* | |
4245 | * Wait for the secure connection... | |
4246 | */ | |
4247 | ||
b86bc4cf | 4248 | while (httpUpdate(http) == HTTP_CONTINUE); |
ef416fc2 | 4249 | } |
4250 | ||
ef416fc2 | 4251 | /* |
b86bc4cf | 4252 | * Restore the HTTP request data... |
ef416fc2 | 4253 | */ |
4254 | ||
b86bc4cf | 4255 | memcpy(http->fields, myhttp.fields, sizeof(http->fields)); |
f7deaa1a | 4256 | http->data_encoding = myhttp.data_encoding; |
4257 | http->data_remaining = myhttp.data_remaining; | |
4258 | http->_data_remaining = myhttp._data_remaining; | |
4259 | http->expect = myhttp.expect; | |
4260 | http->field_authorization = myhttp.field_authorization; | |
bc44d920 | 4261 | http->digest_tries = myhttp.digest_tries; |
ef416fc2 | 4262 | |
4263 | /* | |
4264 | * See if we actually went secure... | |
4265 | */ | |
4266 | ||
4267 | if (!http->tls) | |
4268 | { | |
4269 | /* | |
4270 | * Server does not support HTTP upgrade... | |
4271 | */ | |
4272 | ||
e07d4801 | 4273 | DEBUG_puts("8http_upgrade: Server does not support HTTP upgrade!"); |
ef416fc2 | 4274 | |
4275 | # ifdef WIN32 | |
4276 | closesocket(http->fd); | |
4277 | # else | |
4278 | close(http->fd); | |
4279 | # endif | |
4280 | ||
4281 | http->fd = -1; | |
4282 | ||
4283 | return (-1); | |
4284 | } | |
4285 | else | |
4286 | return (ret); | |
4287 | } | |
4288 | #endif /* HAVE_SSL */ | |
4289 | ||
4290 | ||
ef416fc2 | 4291 | /* |
4292 | * 'http_write()' - Write a buffer to a HTTP connection. | |
4293 | */ | |
ef55b745 | 4294 | |
ef416fc2 | 4295 | static int /* O - Number of bytes written */ |
568fa3fa | 4296 | http_write(http_t *http, /* I - Connection to server */ |
f11a948a MS |
4297 | const char *buffer, /* I - Buffer for data */ |
4298 | int length) /* I - Number of bytes to write */ | |
ef416fc2 | 4299 | { |
4300 | int tbytes, /* Total bytes sent */ | |
4301 | bytes; /* Bytes sent */ | |
4302 | ||
4303 | ||
f8b3a85b MS |
4304 | DEBUG_printf(("2http_write(http=%p, buffer=%p, length=%d)", http, buffer, |
4305 | length)); | |
f11a948a MS |
4306 | http->error = 0; |
4307 | tbytes = 0; | |
ef416fc2 | 4308 | |
4309 | while (length > 0) | |
4310 | { | |
4311 | #ifdef HAVE_SSL | |
4312 | if (http->tls) | |
4313 | bytes = http_write_ssl(http, buffer, length); | |
4314 | else | |
4315 | #endif /* HAVE_SSL */ | |
4316 | bytes = send(http->fd, buffer, length, 0); | |
4317 | ||
4318 | if (bytes < 0) | |
4319 | { | |
4320 | #ifdef WIN32 | |
10d09e33 | 4321 | if (WSAGetLastError() == WSAEINTR) |
cc754834 | 4322 | continue; |
10d09e33 MS |
4323 | else if (WSAGetLastError() == WSAEWOULDBLOCK) |
4324 | { | |
4325 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4326 | continue; | |
4327 | ||
4328 | http->error = WSAGetLastError(); | |
4329 | } | |
4330 | else if (WSAGetLastError() != http->error && | |
4331 | WSAGetLastError() != WSAECONNRESET) | |
ef416fc2 | 4332 | { |
4333 | http->error = WSAGetLastError(); | |
4334 | continue; | |
4335 | } | |
10d09e33 | 4336 | |
ef416fc2 | 4337 | #else |
10d09e33 | 4338 | if (errno == EINTR) |
ef416fc2 | 4339 | continue; |
10d09e33 MS |
4340 | else if (errno == EWOULDBLOCK || errno == EAGAIN) |
4341 | { | |
4342 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
4343 | continue; | |
4344 | else if (!http->timeout_cb && errno == EAGAIN) | |
4345 | continue; | |
4346 | ||
4347 | http->error = errno; | |
4348 | } | |
ef416fc2 | 4349 | else if (errno != http->error && errno != ECONNRESET) |
4350 | { | |
4351 | http->error = errno; | |
4352 | continue; | |
4353 | } | |
4354 | #endif /* WIN32 */ | |
4355 | ||
f8b3a85b MS |
4356 | DEBUG_printf(("3http_write: error writing data (%s).", |
4357 | strerror(http->error))); | |
ef416fc2 | 4358 | |
4359 | return (-1); | |
4360 | } | |
4361 | ||
4362 | buffer += bytes; | |
4363 | tbytes += bytes; | |
4364 | length -= bytes; | |
4365 | } | |
4366 | ||
4367 | #ifdef DEBUG | |
ae71f5de | 4368 | http_debug_hex("http_write", buffer - tbytes, tbytes); |
ef416fc2 | 4369 | #endif /* DEBUG */ |
4370 | ||
f8b3a85b MS |
4371 | DEBUG_printf(("3http_write: Returning %d.", tbytes)); |
4372 | ||
ef416fc2 | 4373 | return (tbytes); |
4374 | } | |
4375 | ||
4376 | ||
4377 | /* | |
4378 | * 'http_write_chunk()' - Write a chunked buffer. | |
4379 | */ | |
4380 | ||
4381 | static int /* O - Number bytes written */ | |
568fa3fa | 4382 | http_write_chunk(http_t *http, /* I - Connection to server */ |
ef416fc2 | 4383 | const char *buffer, /* I - Buffer to write */ |
4384 | int length) /* I - Length of buffer */ | |
4385 | { | |
4386 | char header[255]; /* Chunk header */ | |
4387 | int bytes; /* Bytes written */ | |
4388 | ||
f11a948a | 4389 | |
e07d4801 | 4390 | DEBUG_printf(("7http_write_chunk(http=%p, buffer=%p, length=%d)", |
ef416fc2 | 4391 | http, buffer, length)); |
4392 | ||
4393 | /* | |
4394 | * Write the chunk header, data, and trailer. | |
4395 | */ | |
4396 | ||
4397 | sprintf(header, "%x\r\n", length); | |
b86bc4cf | 4398 | if (http_write(http, header, (int)strlen(header)) < 0) |
ef416fc2 | 4399 | { |
e07d4801 | 4400 | DEBUG_puts("8http_write_chunk: http_write of length failed!"); |
ef416fc2 | 4401 | return (-1); |
4402 | } | |
4403 | ||
4404 | if ((bytes = http_write(http, buffer, length)) < 0) | |
4405 | { | |
e07d4801 | 4406 | DEBUG_puts("8http_write_chunk: http_write of buffer failed!"); |
ef416fc2 | 4407 | return (-1); |
4408 | } | |
4409 | ||
4410 | if (http_write(http, "\r\n", 2) < 0) | |
4411 | { | |
e07d4801 | 4412 | DEBUG_puts("8http_write_chunk: http_write of CR LF failed!"); |
ef416fc2 | 4413 | return (-1); |
4414 | } | |
4415 | ||
4416 | return (bytes); | |
4417 | } | |
4418 | ||
4419 | ||
4420 | #ifdef HAVE_SSL | |
4421 | /* | |
4422 | * 'http_write_ssl()' - Write to a SSL/TLS connection. | |
4423 | */ | |
4424 | ||
4425 | static int /* O - Bytes written */ | |
568fa3fa | 4426 | http_write_ssl(http_t *http, /* I - Connection to server */ |
ef416fc2 | 4427 | const char *buf, /* I - Buffer holding data */ |
4428 | int len) /* I - Length of buffer */ | |
4429 | { | |
f8b3a85b MS |
4430 | ssize_t result; /* Return value */ |
4431 | ||
4432 | ||
4433 | DEBUG_printf(("2http_write_ssl(http=%p, buf=%p, len=%d)", http, buf, len)); | |
4434 | ||
ef416fc2 | 4435 | # if defined(HAVE_LIBSSL) |
f8b3a85b | 4436 | result = SSL_write((SSL *)(http->tls), buf, len); |
ef416fc2 | 4437 | |
4438 | # elif defined(HAVE_GNUTLS) | |
7cf5915e | 4439 | result = gnutls_record_send(http->tls, buf, len); |
ef55b745 MS |
4440 | |
4441 | if (result < 0 && !errno) | |
4442 | { | |
4443 | /* | |
4444 | * Convert GNU TLS error to errno value... | |
4445 | */ | |
4446 | ||
4447 | switch (result) | |
4448 | { | |
4449 | case GNUTLS_E_INTERRUPTED : | |
4450 | errno = EINTR; | |
4451 | break; | |
4452 | ||
4453 | case GNUTLS_E_AGAIN : | |
4454 | errno = EAGAIN; | |
4455 | break; | |
4456 | ||
4457 | default : | |
4458 | errno = EPIPE; | |
4459 | break; | |
4460 | } | |
4461 | ||
4462 | result = -1; | |
4463 | } | |
4464 | ||
ef416fc2 | 4465 | # elif defined(HAVE_CDSASSL) |
4466 | OSStatus error; /* Error info */ | |
4467 | size_t processed; /* Number of bytes processed */ | |
4468 | ||
4469 | ||
7cf5915e | 4470 | error = SSLWrite(http->tls, buf, len, &processed); |
ef416fc2 | 4471 | |
fa73b229 | 4472 | switch (error) |
ef416fc2 | 4473 | { |
fa73b229 | 4474 | case 0 : |
4475 | result = (int)processed; | |
4476 | break; | |
84315f46 | 4477 | |
fa73b229 | 4478 | case errSSLWouldBlock : |
b423cd4c | 4479 | if (processed) |
4480 | result = (int)processed; | |
4481 | else | |
4482 | { | |
4483 | result = -1; | |
ef55b745 | 4484 | errno = EINTR; |
b423cd4c | 4485 | } |
fa73b229 | 4486 | break; |
84315f46 MS |
4487 | |
4488 | case errSSLClosedGraceful : | |
fa73b229 | 4489 | default : |
84315f46 MS |
4490 | if (processed) |
4491 | result = (int)processed; | |
4492 | else | |
4493 | { | |
4494 | result = -1; | |
4495 | errno = EPIPE; | |
4496 | } | |
fa73b229 | 4497 | break; |
ef416fc2 | 4498 | } |
cc754834 | 4499 | # elif defined(HAVE_SSPISSL) |
84315f46 | 4500 | return _sspiWrite((_sspi_struct_t *)http->tls, (void *)buf, len); |
ef416fc2 | 4501 | # endif /* HAVE_LIBSSL */ |
f8b3a85b MS |
4502 | |
4503 | DEBUG_printf(("3http_write_ssl: Returning %d.", (int)result)); | |
4504 | ||
4505 | return ((int)result); | |
ef416fc2 | 4506 | } |
4507 | #endif /* HAVE_SSL */ | |
4508 | ||
4509 | ||
4510 | /* | |
b19ccc9e | 4511 | * End of "$Id: http.c 7850 2008-08-20 00:07:25Z mike $". |
ef416fc2 | 4512 | */ |