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Merge changes from CUPS 1.4svn-r7791.
[thirdparty/cups.git] / scheduler / client.c
CommitLineData
ef416fc2 1/*
75bd9771 2 * "$Id: client.c 7673 2008-06-18 22:31:26Z mike $"
ef416fc2 3 *
4 * Client routines for the Common UNIX Printing System (CUPS) scheduler.
5 *
91c84a35 6 * Copyright 2007-2008 by Apple Inc.
f7deaa1a 7 * Copyright 1997-2007 by Easy Software Products, all rights reserved.
8 *
9 * This file contains Kerberos support code, copyright 2006 by
10 * Jelmer Vernooij.
ef416fc2 11 *
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 * Contents:
19 *
20 * cupsdAcceptClient() - Accept a new client.
21 * cupsdCloseAllClients() - Close all remote clients immediately.
22 * cupsdCloseClient() - Close a remote client.
d09495fa 23 * cupsdFlushHeader() - Flush the header fields to the client.
ef416fc2 24 * cupsdReadClient() - Read data from a client.
25 * cupsdSendCommand() - Send output from a command via HTTP.
26 * cupsdSendError() - Send an error message via HTTP.
ef416fc2 27 * cupsdSendHeader() - Send an HTTP request.
28 * cupsdUpdateCGI() - Read status messages from CGI scripts and programs.
29 * cupsdWriteClient() - Write data to a client as needed.
30 * check_if_modified() - Decode an "If-Modified-Since" line.
3dfe78b3 31 * compare_clients() - Compare two client connections.
e1d6a774 32 * encrypt_client() - Enable encryption for the client...
b86bc4cf 33 * get_cdsa_certificate() - Convert a keychain name into the CFArrayRef
ef416fc2 34 * required by SSLSetCertificate.
35 * get_file() - Get a filename and state info.
36 * install_conf_file() - Install a configuration file.
e1d6a774 37 * is_cgi() - Is the resource a CGI script/program?
ef416fc2 38 * is_path_absolute() - Is a path absolute and free of relative elements.
4744bd90 39 * make_certificate() - Make a self-signed SSL/TLS certificate.
ef416fc2 40 * pipe_command() - Pipe the output of a command to the remote client.
a74454a7 41 * write_file() - Send a file via HTTP.
f899b121 42 * write_pipe() - Flag that data is available on the CGI pipe.
ef416fc2 43 */
44
45/*
46 * Include necessary headers...
47 */
48
ef416fc2 49#include "cupsd.h"
50
51#ifdef HAVE_CDSASSL
52# include <Security/Security.h>
b86bc4cf 53# ifdef HAVE_SECIDENTITYSEARCHPRIV_H
54# include <Security/SecIdentitySearchPriv.h>
55# else /* Declare prototype for function in that header... */
56extern OSStatus SecIdentitySearchCreateWithPolicy(SecPolicyRef policy,
57 CFStringRef idString, CSSM_KEYUSE keyUsage,
58 CFTypeRef keychainOrArray,
59 Boolean returnOnlyValidIdentities,
60 SecIdentitySearchRef* searchRef);
61# endif /* HAVE_SECIDENTITYSEARCHPRIV_H */
62# ifdef HAVE_SECPOLICYPRIV_H
63# include <Security/SecPolicyPriv.h>
64# else /* Declare prototype for function in that header... */
65extern OSStatus SecPolicySetValue(SecPolicyRef policyRef,
66 const CSSM_DATA *value);
67# endif /* HAVE_SECPOLICYPRIV_H */
ed486911 68# ifdef HAVE_SECBASEPRIV_H
69# include <Security/SecBasePriv.h>
b86bc4cf 70# else /* Declare prototype for function in that header... */
71extern const char *cssmErrorString(int error);
ed486911 72# endif /* HAVE_SECBASEPRIV_H */
ef416fc2 73#endif /* HAVE_CDSASSL */
b86bc4cf 74
4744bd90 75#ifdef HAVE_GNUTLS
76# include <gnutls/x509.h>
77#endif /* HAVE_GNUTLS */
ef416fc2 78
79
80/*
81 * Local functions...
82 */
83
84static int check_if_modified(cupsd_client_t *con,
85 struct stat *filestats);
3dfe78b3
MS		 86static int compare_clients(cupsd_client_t *a, cupsd_client_t *b,
87 void *data);
80ca4592 88#ifdef HAVE_SSL
e1d6a774 89static int encrypt_client(cupsd_client_t *con);
80ca4592 90#endif /* HAVE_SSL */
ef416fc2 91#ifdef HAVE_CDSASSL
b86bc4cf 92static CFArrayRef get_cdsa_certificate(cupsd_client_t *con);
ef416fc2 93#endif /* HAVE_CDSASSL */
f7deaa1a 94static char *get_file(cupsd_client_t *con, struct stat *filestats,
ef416fc2 95 char *filename, int len);
96static http_status_t install_conf_file(cupsd_client_t *con);
e1d6a774 97static int is_cgi(cupsd_client_t *con, const char *filename,
98 struct stat *filestats, mime_type_t *type);
ef416fc2 99static int is_path_absolute(const char *path);
8ca02f3c 100#ifdef HAVE_SSL
b86bc4cf 101static int make_certificate(cupsd_client_t *con);
8ca02f3c 102#endif /* HAVE_SSL */
ef416fc2 103static int pipe_command(cupsd_client_t *con, int infile, int *outfile,
104 char *command, char *options, int root);
a74454a7 105static int write_file(cupsd_client_t *con, http_status_t code,
106 char *filename, char *type,
107 struct stat *filestats);
f899b121 108static void write_pipe(cupsd_client_t *con);
ef416fc2 109
110
111/*
112 * 'cupsdAcceptClient()' - Accept a new client.
113 */
114
115void
116cupsdAcceptClient(cupsd_listener_t *lis)/* I - Listener socket */
117{
ef416fc2 118 int count; /* Count of connections on a host */
119 int val; /* Parameter value */
bd7854cb 120 cupsd_client_t *con, /* New client pointer */
121 *tempcon; /* Temporary client pointer */
ef416fc2 122 http_addrlist_t *addrlist, /* List of adddresses for host */
123 *addr; /* Current address */
124 socklen_t addrlen; /* Length of address */
125 char *hostname; /* Hostname for address */
126 http_addr_t temp; /* Temporary address variable */
127 static time_t last_dos = 0; /* Time of last DoS attack */
128
129
130 cupsdLogMessage(CUPSD_LOG_DEBUG2,
bd7854cb 131 "cupsdAcceptClient(lis=%p) %d Clients = %d",
132 lis, lis->fd, cupsArrayCount(Clients));
ef416fc2 133
134 /*
135 * Make sure we don't have a full set of clients already...
136 */
137
bd7854cb 138 if (cupsArrayCount(Clients) == MaxClients)
ef416fc2 139 return;
140
141 /*
142 * Get a pointer to the next available client...
143 */
144
bd7854cb 145 if (!Clients)
146 Clients = cupsArrayNew(NULL, NULL);
147
148 if (!Clients)
91c84a35
MS		 149 {
150 cupsdLogMessage(CUPSD_LOG_ERROR,
3dfe78b3
MS		 151 "Unable to allocate memory for clients array!");
152 cupsdPauseListening();
153 return;
154 }
155
156 if (!ActiveClients)
157 ActiveClients = cupsArrayNew((cups_array_func_t)compare_clients, NULL);
158
159 if (!ActiveClients)
160 {
161 cupsdLogMessage(CUPSD_LOG_ERROR,
162 "Unable to allocate memory for active clients array!");
91c84a35 163 cupsdPauseListening();
bd7854cb 164 return;
91c84a35 165 }
bd7854cb 166
91c84a35
MS		 167 if ((con = calloc(1, sizeof(cupsd_client_t))) == NULL)
168 {
169 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to allocate memory for client!");
170 cupsdPauseListening();
171 return;
172 }
ef416fc2 173
ef416fc2 174 con->http.activity = time(NULL);
175 con->file = -1;
176 con->http.hostaddr = &(con->clientaddr);
177
178 /*
179 * Accept the client and get the remote address...
180 */
181
182 addrlen = sizeof(http_addr_t);
183
184 if ((con->http.fd = accept(lis->fd, (struct sockaddr *)con->http.hostaddr,
185 &addrlen)) < 0)
186 {
76cd9e37
MS		 187 if (errno == ENFILE || errno == EMFILE)
188 cupsdPauseListening();
189
ef416fc2 190 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to accept client connection - %s.",
191 strerror(errno));
bd7854cb 192 free(con);
76cd9e37 193
ef416fc2 194 return;
195 }
196
197#ifdef AF_INET6
198 if (lis->address.addr.sa_family == AF_INET6)
199 {
200 /*
201 * Save the connected port number...
202 */
203
204 con->http.hostaddr->ipv6.sin6_port = lis->address.ipv6.sin6_port;
205
206 /*
207 * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we
208 * can more easily use...
209 */
210
211 if (con->http.hostaddr->ipv6.sin6_addr.s6_addr32[0] == 0 &&
212 con->http.hostaddr->ipv6.sin6_addr.s6_addr32[1] == 0 &&
213 ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2]) == 0xffff)
214 con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2] = 0;
215 }
216 else
217#endif /* AF_INET6 */
218 if (lis->address.addr.sa_family == AF_INET)
219 con->http.hostaddr->ipv4.sin_port = lis->address.ipv4.sin_port;
220
221 /*
222 * Check the number of clients on the same address...
223 */
224
bd7854cb 225 for (count = 0, tempcon = (cupsd_client_t *)cupsArrayFirst(Clients);
226 tempcon;
227 tempcon = (cupsd_client_t *)cupsArrayNext(Clients))
228 if (httpAddrEqual(tempcon->http.hostaddr, con->http.hostaddr))
ef416fc2 229 {
230 count ++;
231 if (count >= MaxClientsPerHost)
232 break;
233 }
234
235 if (count >= MaxClientsPerHost)
236 {
237 if ((time(NULL) - last_dos) >= 60)
238 {
239 last_dos = time(NULL);
240 cupsdLogMessage(CUPSD_LOG_WARN,
bd7854cb 241 "Possible DoS attack - more than %d clients connecting "
242 "from %s!",
1f0275e3 243 MaxClientsPerHost, con->http.hostname);
ef416fc2 244 }
245
246#ifdef WIN32
247 closesocket(con->http.fd);
248#else
249 close(con->http.fd);
250#endif /* WIN32 */
251
bd7854cb 252 free(con);
ef416fc2 253 return;
254 }
255
256 /*
257 * Get the hostname or format the IP address as needed...
258 */
259
260 if (httpAddrLocalhost(con->http.hostaddr))
261 {
262 /*
263 * Map accesses from the loopback interface to "localhost"...
264 */
265
266 strlcpy(con->http.hostname, "localhost", sizeof(con->http.hostname));
267 hostname = con->http.hostname;
268 }
269 else
270 {
271 /*
272 * Map accesses from the same host to the server name.
273 */
274
275 for (addr = ServerAddrs; addr; addr = addr->next)
276 if (httpAddrEqual(con->http.hostaddr, &(addr->addr)))
277 break;
278
279 if (addr)
280 {
281 strlcpy(con->http.hostname, ServerName, sizeof(con->http.hostname));
282 hostname = con->http.hostname;
283 }
284 else if (HostNameLookups)
285 hostname = httpAddrLookup(con->http.hostaddr, con->http.hostname,
286 sizeof(con->http.hostname));
287 else
288 {
289 hostname = NULL;
290 httpAddrString(con->http.hostaddr, con->http.hostname,
291 sizeof(con->http.hostname));
292 }
293 }
294
295 if (hostname == NULL && HostNameLookups == 2)
296 {
297 /*
298 * Can't have an unresolved IP address with double-lookups enabled...
299 */
300
301 cupsdLogMessage(CUPSD_LOG_DEBUG2,
302 "cupsdAcceptClient: Closing connection %d...",
303 con->http.fd);
304
305#ifdef WIN32
306 closesocket(con->http.fd);
307#else
308 close(con->http.fd);
309#endif /* WIN32 */
310
311 cupsdLogMessage(CUPSD_LOG_WARN,
312 "Name lookup failed - connection from %s closed!",
313 con->http.hostname);
bd7854cb 314
315 free(con);
ef416fc2 316 return;
317 }
318
319 if (HostNameLookups == 2)
320 {
321 /*
322 * Do double lookups as needed...
323 */
324
325 if ((addrlist = httpAddrGetList(con->http.hostname, AF_UNSPEC, NULL)) != NULL)
326 {
327 /*
328 * See if the hostname maps to the same IP address...
329 */
330
331 for (addr = addrlist; addr; addr = addr->next)
332 if (httpAddrEqual(con->http.hostaddr, &(addr->addr)))
333 break;
334 }
335 else
336 addr = NULL;
337
338 httpAddrFreeList(addrlist);
339
340 if (!addr)
341 {
342 /*
343 * Can't have a hostname that doesn't resolve to the same IP address
344 * with double-lookups enabled...
345 */
346
347 cupsdLogMessage(CUPSD_LOG_DEBUG2,
348 "cupsdAcceptClient: Closing connection %d...",
349 con->http.fd);
350
351#ifdef WIN32
352 closesocket(con->http.fd);
353#else
354 close(con->http.fd);
355#endif /* WIN32 */
356
357 cupsdLogMessage(CUPSD_LOG_WARN,
358 "IP lookup failed - connection from %s closed!",
359 con->http.hostname);
bd7854cb 360 free(con);
ef416fc2 361 return;
362 }
363 }
364
365#ifdef AF_INET6
366 if (con->http.hostaddr->addr.sa_family == AF_INET6)
367 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv6)",
368 con->http.fd, con->http.hostname,
369 ntohs(con->http.hostaddr->ipv6.sin6_port));
370 else
371#endif /* AF_INET6 */
372#ifdef AF_LOCAL
373 if (con->http.hostaddr->addr.sa_family == AF_LOCAL)
374 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s (Domain)",
375 con->http.fd, con->http.hostname);
376 else
377#endif /* AF_LOCAL */
378 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv4)",
379 con->http.fd, con->http.hostname,
380 ntohs(con->http.hostaddr->ipv4.sin_port));
381
382 /*
383 * Get the local address the client connected to...
384 */
385
386 addrlen = sizeof(temp);
387 if (getsockname(con->http.fd, (struct sockaddr *)&temp, &addrlen))
388 {
389 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get local address - %s",
390 strerror(errno));
391
392 strcpy(con->servername, "localhost");
393 con->serverport = LocalPort;
394 }
395 else
396 {
397#ifdef AF_INET6
398 if (temp.addr.sa_family == AF_INET6)
399 {
400 httpAddrLookup(&temp, con->servername, sizeof(con->servername));
401 con->serverport = ntohs(lis->address.ipv6.sin6_port);
402 }
403 else
404#endif /* AF_INET6 */
405 if (temp.addr.sa_family == AF_INET)
406 {
407 httpAddrLookup(&temp, con->servername, sizeof(con->servername));
408 con->serverport = ntohs(lis->address.ipv4.sin_port);
409 }
410 else
411 {
412 strcpy(con->servername, "localhost");
413 con->serverport = LocalPort;
414 }
415 }
416
bd7854cb 417 cupsArrayAdd(Clients, con);
418
ef416fc2 419 cupsdLogMessage(CUPSD_LOG_DEBUG2,
420 "cupsdAcceptClient: %d connected to server on %s:%d",
421 con->http.fd, con->servername, con->serverport);
422
423 /*
424 * Using TCP_NODELAY improves responsiveness, especially on systems
425 * with a slow loopback interface... Since we write large buffers
426 * when sending print files and requests, there shouldn't be any
427 * performance penalty for this...
428 */
429
430 val = 1;
f7deaa1a 431 setsockopt(con->http.fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
ef416fc2 432
433 /*
434 * Close this file on all execs...
435 */
436
437 fcntl(con->http.fd, F_SETFD, fcntl(con->http.fd, F_GETFD) | FD_CLOEXEC);
438
439 /*
440 * Add the socket to the select() input mask.
441 */
442
f7deaa1a 443 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con);
ef416fc2 444
ef416fc2 445 /*
446 * Temporarily suspend accept()'s until we lose a client...
447 */
448
bd7854cb 449 if (cupsArrayCount(Clients) == MaxClients)
ef416fc2 450 cupsdPauseListening();
451
452#ifdef HAVE_SSL
453 /*
454 * See if we are connecting on a secure port...
455 */
456
457 if (lis->encryption == HTTP_ENCRYPT_ALWAYS)
458 {
459 /*
460 * https connection; go secure...
461 */
462
463 con->http.encryption = HTTP_ENCRYPT_ALWAYS;
464
411affcf 465 if (!encrypt_client(con))
466 cupsdCloseClient(con);
ef416fc2 467 }
468 else
469 con->auto_ssl = 1;
470#endif /* HAVE_SSL */
471}
472
473
474/*
475 * 'cupsdCloseAllClients()' - Close all remote clients immediately.
476 */
477
478void
479cupsdCloseAllClients(void)
480{
bd7854cb 481 cupsd_client_t *con; /* Current client */
482
483
484 for (con = (cupsd_client_t *)cupsArrayFirst(Clients);
485 con;
486 con = (cupsd_client_t *)cupsArrayNext(Clients))
487 cupsdCloseClient(con);
ef416fc2 488}
489
490
491/*
492 * 'cupsdCloseClient()' - Close a remote client.
493 */
494
495int /* O - 1 if partial close, 0 if fully closed */
496cupsdCloseClient(cupsd_client_t *con) /* I - Client to close */
497{
498 int partial; /* Do partial close for SSL? */
499#ifdef HAVE_LIBSSL
500 SSL_CTX *context; /* Context for encryption */
501 SSL *conn; /* Connection for encryption */
502 unsigned long error; /* Error code */
503#elif defined(HAVE_GNUTLS)
89d46774 504 http_tls_t *conn; /* TLS connection information */
505 int error; /* Error code */
ef416fc2 506 gnutls_certificate_server_credentials *credentials;
507 /* TLS credentials */
89d46774 508# elif defined(HAVE_CDSASSL)
509 http_tls_t *conn; /* CDSA connection information */
ef416fc2 510#endif /* HAVE_LIBSSL */
511
512
513 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdCloseClient: %d", con->http.fd);
514
515 /*
516 * Flush pending writes before closing...
517 */
518
519 httpFlushWrite(HTTP(con));
520
521 partial = 0;
522
523#ifdef HAVE_SSL
524 /*
525 * Shutdown encryption as needed...
526 */
527
528 if (con->http.tls)
529 {
530 partial = 1;
531
532# ifdef HAVE_LIBSSL
533 conn = (SSL *)(con->http.tls);
534 context = SSL_get_SSL_CTX(conn);
535
536 switch (SSL_shutdown(conn))
537 {
538 case 1 :
c934a06c
MS		 539 cupsdLogMessage(CUPSD_LOG_DEBUG,
540 "SSL shutdown successful!");
ef416fc2 541 break;
542 case -1 :
543 cupsdLogMessage(CUPSD_LOG_ERROR,
c934a06c 544 "Fatal error during SSL shutdown!");
ef416fc2 545 default :
546 while ((error = ERR_get_error()) != 0)
c934a06c 547 cupsdLogMessage(CUPSD_LOG_ERROR, "SSL shutdown failed: %s",
ef416fc2 548 ERR_error_string(error, NULL));
549 break;
550 }
551
552 SSL_CTX_free(context);
553 SSL_free(conn);
554
555# elif defined(HAVE_GNUTLS)
556 conn = (http_tls_t *)(con->http.tls);
557 credentials = (gnutls_certificate_server_credentials *)(conn->credentials);
558
559 error = gnutls_bye(conn->session, GNUTLS_SHUT_WR);
560 switch (error)
561 {
562 case GNUTLS_E_SUCCESS:
c934a06c
MS		 563 cupsdLogMessage(CUPSD_LOG_DEBUG,
564 "SSL shutdown successful!");
ef416fc2 565 break;
566 default:
567 cupsdLogMessage(CUPSD_LOG_ERROR,
c934a06c 568 "SSL shutdown failed: %s", gnutls_strerror(error));
ef416fc2 569 break;
570 }
571
572 gnutls_deinit(conn->session);
573 gnutls_certificate_free_credentials(*credentials);
574 free(credentials);
575 free(conn);
576
577# elif defined(HAVE_CDSASSL)
89d46774 578 conn = (http_tls_t *)(con->http.tls);
579
580 while (SSLClose(conn->session) == errSSLWouldBlock)
b423cd4c 581 usleep(1000);
582
89d46774 583 SSLDisposeContext(conn->session);
584
585 if (conn->certsArray)
586 CFRelease(conn->certsArray);
587
588 free(conn);
ef416fc2 589# endif /* HAVE_LIBSSL */
590
591 con->http.tls = NULL;
592 }
593#endif /* HAVE_SSL */
594
595 if (con->pipe_pid != 0)
596 {
597 /*
598 * Stop any CGI process...
599 */
600
601 cupsdLogMessage(CUPSD_LOG_DEBUG2,
602 "cupsdCloseClient: %d Killing process ID %d...",
603 con->http.fd, con->pipe_pid);
604 cupsdEndProcess(con->pipe_pid, 1);
605 con->pipe_pid = 0;
606 }
607
608 if (con->file >= 0)
609 {
f7deaa1a 610 cupsdRemoveSelect(con->file);
ef416fc2 611
612 cupsdLogMessage(CUPSD_LOG_DEBUG2,
613 "cupsdCloseClient: %d Closing data file %d.",
614 con->http.fd, con->file);
615
616 close(con->file);
617 con->file = -1;
618 }
619
620 /*
621 * Close the socket and clear the file from the input set for select()...
622 */
623
3dfe78b3 624 if (con->http.fd >= 0)
ef416fc2 625 {
3dfe78b3
MS		 626 cupsArrayRemove(ActiveClients, con);
627 cupsdSetBusyState();
628
ef416fc2 629 if (partial)
630 {
631 /*
632 * Only do a partial close so that the encrypted client gets everything.
633 */
634
ef416fc2 635 shutdown(con->http.fd, 0);
f7deaa1a 636 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con);
ef416fc2 637 }
638 else
639 {
640 /*
641 * Shut the socket down fully...
642 */
643
f7deaa1a 644 cupsdRemoveSelect(con->http.fd);
ef416fc2 645 close(con->http.fd);
ef416fc2 646 con->http.fd = -1;
647 }
648 }
649
650 if (!partial)
651 {
652 /*
653 * Free memory...
654 */
655
656 if (con->http.input_set)
657 free(con->http.input_set);
658
659 httpClearCookie(HTTP(con));
660
661 cupsdClearString(&con->filename);
662 cupsdClearString(&con->command);
663 cupsdClearString(&con->options);
b86bc4cf 664 cupsdClearString(&con->query_string);
ef416fc2 665
666 if (con->request)
667 {
668 ippDelete(con->request);
669 con->request = NULL;
670 }
671
672 if (con->response)
673 {
674 ippDelete(con->response);
675 con->response = NULL;
676 }
677
678 if (con->language)
679 {
680 cupsLangFree(con->language);
681 con->language = NULL;
682 }
683
f7deaa1a 684#ifdef HAVE_AUTHORIZATION_H
685 if (con->authref)
686 {
687 AuthorizationFree(con->authref, kAuthorizationFlagDefaults);
688 con->authref = NULL;
689 }
690#endif /* HAVE_AUTHORIZATION_H */
691
ef416fc2 692 /*
693 * Re-enable new client connections if we are going back under the
694 * limit...
695 */
696
bd7854cb 697 if (cupsArrayCount(Clients) == MaxClients)
ef416fc2 698 cupsdResumeListening();
699
700 /*
701 * Compact the list of clients as necessary...
702 */
703
bd7854cb 704 cupsArrayRemove(Clients, con);
ef416fc2 705
bd7854cb 706 free(con);
ef416fc2 707 }
708
709 return (partial);
710}
711
712
d09495fa 713/*
714 * 'cupsdFlushHeader()' - Flush the header fields to the client.
715 */
716
07725fee 717int /* I - Bytes written or -1 on error */
d09495fa 718cupsdFlushHeader(cupsd_client_t *con) /* I - Client to flush to */
719{
07725fee 720 int bytes = httpFlushWrite(HTTP(con));
d09495fa 721
722 con->http.data_encoding = HTTP_ENCODE_LENGTH;
07725fee 723
724 return (bytes);
d09495fa 725}
726
727
ef416fc2 728/*
729 * 'cupsdReadClient()' - Read data from a client.
730 */
731
f7deaa1a 732void
ef416fc2 733cupsdReadClient(cupsd_client_t *con) /* I - Client to read from */
734{
735 char line[32768], /* Line from client... */
736 operation[64], /* Operation code from socket */
737 version[64], /* HTTP version number string */
738 locale[64], /* Locale */
739 *ptr; /* Pointer into strings */
740 int major, minor; /* HTTP version numbers */
741 http_status_t status; /* Transfer status */
742 ipp_state_t ipp_state; /* State of IPP transfer */
743 int bytes; /* Number of bytes to POST */
744 char *filename; /* Name of file for GET/HEAD */
745 char buf[1024]; /* Buffer for real filename */
746 struct stat filestats; /* File information */
747 mime_type_t *type; /* MIME type of file */
748 cupsd_printer_t *p; /* Printer */
749 static unsigned request_id = 0; /* Request ID for temp files */
750
751
752 status = HTTP_CONTINUE;
753
754 cupsdLogMessage(CUPSD_LOG_DEBUG2,
755 "cupsdReadClient: %d, used=%d, file=%d state=%d",
756 con->http.fd, con->http.used, con->file, con->http.state);
757
758 if (con->http.error)
759 {
760 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: http error seen...");
f7deaa1a 761 cupsdCloseClient(con);
762 return;
ef416fc2 763 }
764
765#ifdef HAVE_SSL
766 if (con->auto_ssl)
767 {
768 /*
769 * Automatically check for a SSL/TLS handshake...
770 */
771
772 con->auto_ssl = 0;
773
774 if (recv(con->http.fd, buf, 1, MSG_PEEK) == 1 &&
775 (!buf[0] || !strchr("DGHOPT", buf[0])))
776 {
777 /*
778 * Encrypt this connection...
779 */
780
781 cupsdLogMessage(CUPSD_LOG_DEBUG2,
782 "cupsdReadClient: Saw first byte %02X, auto-negotiating SSL/TLS session...",
783 buf[0] & 255);
784
411affcf 785 if (!encrypt_client(con))
f7deaa1a 786 cupsdCloseClient(con);
411affcf 787
f7deaa1a 788 return;
ef416fc2 789 }
790 }
791#endif /* HAVE_SSL */
792
793 switch (con->http.state)
794 {
795 case HTTP_WAITING :
796 /*
797 * See if we've received a request line...
798 */
799
800 if (httpGets(line, sizeof(line) - 1, HTTP(con)) == NULL)
801 {
802 cupsdLogMessage(CUPSD_LOG_DEBUG2,
803 "cupsdReadClient: httpGets returned EOF...");
f7deaa1a 804 cupsdCloseClient(con);
805 return;
ef416fc2 806 }
807
808 /*
809 * Ignore blank request lines...
810 */
811
812 if (line[0] == '\0')
813 break;
814
815 /*
816 * Clear other state variables...
817 */
818
819 httpClearFields(HTTP(con));
820
821 con->http.activity = time(NULL);
822 con->http.version = HTTP_1_0;
823 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
824 con->http.data_encoding = HTTP_ENCODE_LENGTH;
825 con->http.data_remaining = 0;
826 con->http._data_remaining = 0;
827 con->operation = HTTP_WAITING;
828 con->bytes = 0;
829 con->file = -1;
830 con->file_ready = 0;
831 con->pipe_pid = 0;
832 con->username[0] = '\0';
833 con->password[0] = '\0';
834 con->uri[0] = '\0';
835
836 cupsdClearString(&con->command);
837 cupsdClearString(&con->options);
b86bc4cf 838 cupsdClearString(&con->query_string);
ef416fc2 839
2abf387c 840 if (con->request)
841 {
842 ippDelete(con->request);
843 con->request = NULL;
844 }
845
846 if (con->response)
847 {
848 ippDelete(con->response);
849 con->response = NULL;
850 }
851
852 if (con->language)
ef416fc2 853 {
854 cupsLangFree(con->language);
855 con->language = NULL;
856 }
857
09a101d6 858#ifdef HAVE_GSSAPI
859 con->gss_have_creds = 0;
860#endif /* HAVE_GSSAPI */
861
ef416fc2 862 /*
863 * Grab the request line...
864 */
865
866 switch (sscanf(line, "%63s%1023s%63s", operation, con->uri, version))
867 {
868 case 1 :
c934a06c
MS		 869 if (line[0])
870 {
871 cupsdLogMessage(CUPSD_LOG_ERROR,
872 "Bad request line \"%s\" from %s!", line,
873 con->http.hostname);
874 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
875 cupsdCloseClient(con);
876 }
f7deaa1a 877 return;
ef416fc2 878 case 2 :
879 con->http.version = HTTP_0_9;
880 break;
881 case 3 :
882 if (sscanf(version, "HTTP/%d.%d", &major, &minor) != 2)
883 {
884 cupsdLogMessage(CUPSD_LOG_ERROR,
885 "Bad request line \"%s\" from %s!", line,
886 con->http.hostname);
5bd77a73 887 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 888 cupsdCloseClient(con);
889 return;
ef416fc2 890 }
891
892 if (major < 2)
893 {
894 con->http.version = (http_version_t)(major * 100 + minor);
895 if (con->http.version == HTTP_1_1 && KeepAlive)
896 con->http.keep_alive = HTTP_KEEPALIVE_ON;
897 else
898 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
899 }
900 else
901 {
5bd77a73 902 cupsdSendError(con, HTTP_NOT_SUPPORTED, CUPSD_AUTH_NONE);
f7deaa1a 903 cupsdCloseClient(con);
904 return;
ef416fc2 905 }
906 break;
907 }
908
909 /*
910 * Handle full URLs in the request line...
911 */
912
913 if (strcmp(con->uri, "*"))
914 {
915 char method[HTTP_MAX_URI], /* Method/scheme */
916 userpass[HTTP_MAX_URI], /* Username:password */
917 hostname[HTTP_MAX_URI], /* Hostname */
918 resource[HTTP_MAX_URI]; /* Resource path */
919 int port; /* Port number */
920
921
922 /*
923 * Separate the URI into its components...
924 */
925
a4d04587 926 httpSeparateURI(HTTP_URI_CODING_MOST, con->uri,
927 method, sizeof(method),
ef416fc2 928 userpass, sizeof(userpass),
929 hostname, sizeof(hostname), &port,
930 resource, sizeof(resource));
931
932 /*
933 * Only allow URIs with the servername, localhost, or an IP
934 * address...
935 */
936
937 if (strcmp(method, "file") &&
938 strcasecmp(hostname, ServerName) &&
939 strcasecmp(hostname, "localhost") &&
940 !isdigit(hostname[0]))
941 {
942 /*
943 * Nope, we don't do proxies...
944 */
945
946 cupsdLogMessage(CUPSD_LOG_ERROR, "Bad URI \"%s\" in request!",
947 con->uri);
5bd77a73 948 cupsdSendError(con, HTTP_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE);
f7deaa1a 949 cupsdCloseClient(con);
950 return;
ef416fc2 951 }
952
953 /*
954 * Copy the resource portion back into the URI; both resource and
955 * con->uri are HTTP_MAX_URI bytes in size...
956 */
957
958 strcpy(con->uri, resource);
959 }
960
961 /*
962 * Process the request...
963 */
964
965 if (!strcmp(operation, "GET"))
966 con->http.state = HTTP_GET;
967 else if (!strcmp(operation, "PUT"))
968 con->http.state = HTTP_PUT;
969 else if (!strcmp(operation, "POST"))
970 con->http.state = HTTP_POST;
971 else if (!strcmp(operation, "DELETE"))
972 con->http.state = HTTP_DELETE;
973 else if (!strcmp(operation, "TRACE"))
974 con->http.state = HTTP_TRACE;
975 else if (!strcmp(operation, "OPTIONS"))
976 con->http.state = HTTP_OPTIONS;
977 else if (!strcmp(operation, "HEAD"))
978 con->http.state = HTTP_HEAD;
979 else
980 {
981 cupsdLogMessage(CUPSD_LOG_ERROR, "Bad operation \"%s\"!", operation);
5bd77a73 982 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 983 cupsdCloseClient(con);
984 return;
ef416fc2 985 }
986
987 con->start = time(NULL);
988 con->operation = con->http.state;
989
89d46774 990 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdReadClient: %d %s %s HTTP/%d.%d",
991 con->http.fd, operation, con->uri,
ef416fc2 992 con->http.version / 100, con->http.version % 100);
993
994 con->http.status = HTTP_OK;
995
3dfe78b3
MS		 996 cupsArrayAdd(ActiveClients, con);
997 cupsdSetBusyState();
998
ef416fc2 999 case HTTP_OPTIONS :
1000 case HTTP_DELETE :
1001 case HTTP_GET :
1002 case HTTP_HEAD :
1003 case HTTP_POST :
1004 case HTTP_PUT :
1005 case HTTP_TRACE :
1006 /*
1007 * Parse incoming parameters until the status changes...
1008 */
1009
f7deaa1a 1010 while ((status = httpUpdate(HTTP(con))) == HTTP_CONTINUE)
1011 if (con->http.used == 0 ||
1012 !memchr(con->http.buffer, '\n', con->http.used))
1013 break;
ef416fc2 1014
1015 if (status != HTTP_OK && status != HTTP_CONTINUE)
1016 {
5bd77a73 1017 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 1018 cupsdCloseClient(con);
1019 return;
ef416fc2 1020 }
1021 break;
1022
1023 default :
1024 break; /* Anti-compiler-warning-code */
1025 }
1026
1027 /*
1028 * Handle new transfers...
1029 */
1030
1031 if (status == HTTP_OK)
1032 {
1033 if (con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE][0])
1034 {
1035 /*
1036 * Figure out the locale from the Accept-Language and Content-Type
1037 * fields...
1038 */
1039
1040 if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ',')) != NULL)
1041 *ptr = '\0';
1042
1043 if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ';')) != NULL)
1044 *ptr = '\0';
1045
1046 if ((ptr = strstr(con->http.fields[HTTP_FIELD_CONTENT_TYPE], "charset=")) != NULL)
1047 {
1048 /*
1049 * Combine language and charset, and trim any extra params in the
1050 * content-type.
1051 */
1052
1053 snprintf(locale, sizeof(locale), "%s.%s",
1054 con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ptr + 8);
1055
1056 if ((ptr = strchr(locale, ',')) != NULL)
1057 *ptr = '\0';
1058 }
1059 else
1060 snprintf(locale, sizeof(locale), "%s.%s",
1061 con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], DefaultCharset);
d6ae789d 1062
355e94dc 1063 cupsdLogMessage(CUPSD_LOG_DEBUG2,
89d46774 1064 "cupsdReadClient: %d Browser asked for language \"%s\"...",
1065 con->http.fd, locale);
1066
ef416fc2 1067 con->language = cupsLangGet(locale);
1068 }
1069 else
1070 con->language = cupsLangGet(DefaultLocale);
1071
1072 cupsdAuthorize(con);
1073
1074 if (!strncmp(con->http.fields[HTTP_FIELD_CONNECTION], "Keep-Alive", 10) &&
1075 KeepAlive)
1076 con->http.keep_alive = HTTP_KEEPALIVE_ON;
1077
1078 if (!con->http.fields[HTTP_FIELD_HOST][0] &&
1079 con->http.version >= HTTP_1_1)
1080 {
1081 /*
1082 * HTTP/1.1 and higher require the "Host:" field...
1083 */
1084
5bd77a73 1085 if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE))
f7deaa1a 1086 {
1087 cupsdCloseClient(con);
1088 return;
1089 }
ef416fc2 1090 }
1091 else if (con->operation == HTTP_OPTIONS)
1092 {
1093 /*
1094 * Do OPTIONS command...
1095 */
1096
5bd77a73 1097 if (con->best && con->best->type != CUPSD_AUTH_NONE)
ef416fc2 1098 {
5bd77a73 1099 if (!cupsdSendHeader(con, HTTP_UNAUTHORIZED, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1100 {
1101 cupsdCloseClient(con);
1102 return;
1103 }
ef416fc2 1104 }
1105
1106 if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") &&
1107 con->http.tls == NULL)
1108 {
1109#ifdef HAVE_SSL
1110 /*
1111 * Do encryption stuff...
1112 */
1113
5bd77a73 1114 if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1115 {
1116 cupsdCloseClient(con);
1117 return;
1118 }
ef416fc2 1119
1120 httpPrintf(HTTP(con), "Connection: Upgrade\r\n");
1121 httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1122 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1123 httpPrintf(HTTP(con), "\r\n");
07725fee 1124
1125 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1126 {
1127 cupsdCloseClient(con);
1128 return;
1129 }
ef416fc2 1130
411affcf 1131 if (!encrypt_client(con))
f7deaa1a 1132 {
1133 cupsdCloseClient(con);
1134 return;
1135 }
ef416fc2 1136#else
5bd77a73 1137 if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE))
f7deaa1a 1138 {
1139 cupsdCloseClient(con);
1140 return;
1141 }
ef416fc2 1142#endif /* HAVE_SSL */
1143 }
1144
5bd77a73 1145 if (!cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1146 {
1147 cupsdCloseClient(con);
1148 return;
1149 }
ef416fc2 1150
1151 httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n");
1152 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1153 httpPrintf(HTTP(con), "\r\n");
07725fee 1154
1155 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1156 {
1157 cupsdCloseClient(con);
1158 return;
1159 }
ef416fc2 1160 }
1161 else if (!is_path_absolute(con->uri))
1162 {
1163 /*
1164 * Protect against malicious users!
1165 */
1166
5bd77a73 1167 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1168 {
1169 cupsdCloseClient(con);
1170 return;
1171 }
ef416fc2 1172 }
1173 else
1174 {
1175 if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") &&
1176 con->http.tls == NULL)
1177 {
1178#ifdef HAVE_SSL
1179 /*
1180 * Do encryption stuff...
1181 */
1182
5bd77a73 1183 if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1184 {
1185 cupsdCloseClient(con);
1186 return;
1187 }
ef416fc2 1188
1189 httpPrintf(HTTP(con), "Connection: Upgrade\r\n");
1190 httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1191 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1192 httpPrintf(HTTP(con), "\r\n");
07725fee 1193
1194 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1195 {
1196 cupsdCloseClient(con);
1197 return;
1198 }
ef416fc2 1199
411affcf 1200 if (!encrypt_client(con))
f7deaa1a 1201 {
1202 cupsdCloseClient(con);
1203 return;
1204 }
ef416fc2 1205#else
5bd77a73 1206 if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE))
f7deaa1a 1207 {
1208 cupsdCloseClient(con);
1209 return;
1210 }
ef416fc2 1211#endif /* HAVE_SSL */
1212 }
1213
1214 if ((status = cupsdIsAuthorized(con, NULL)) != HTTP_OK)
1215 {
1216 cupsdLogMessage(CUPSD_LOG_DEBUG2,
75bd9771 1217 "cupsdReadClient: Unauthorized request for %s...",
ef416fc2 1218 con->uri);
5bd77a73 1219 cupsdSendError(con, status, CUPSD_AUTH_NONE);
f7deaa1a 1220 cupsdCloseClient(con);
1221 return;
ef416fc2 1222 }
1223
b423cd4c 1224 if (con->http.expect &&
1225 (con->operation == HTTP_POST || con->operation == HTTP_PUT))
ef416fc2 1226 {
b423cd4c 1227 if (con->http.expect == HTTP_CONTINUE)
1228 {
1229 /*
1230 * Send 100-continue header...
1231 */
1232
5bd77a73 1233 if (!cupsdSendHeader(con, HTTP_CONTINUE, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1234 {
1235 cupsdCloseClient(con);
1236 return;
1237 }
b423cd4c 1238 }
1239 else
1240 {
1241 /*
1242 * Send 417-expectation-failed header...
1243 */
1244
5bd77a73 1245 if (!cupsdSendHeader(con, HTTP_EXPECTATION_FAILED, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1246 {
1247 cupsdCloseClient(con);
1248 return;
1249 }
b423cd4c 1250
1251 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1252 httpPrintf(HTTP(con), "\r\n");
07725fee 1253
1254 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1255 {
1256 cupsdCloseClient(con);
1257 return;
1258 }
b423cd4c 1259 }
ef416fc2 1260 }
1261
1262 switch (con->http.state)
1263 {
1264 case HTTP_GET_SEND :
1265 if (!strncmp(con->uri, "/printers/", 10) &&
1266 !strcmp(con->uri + strlen(con->uri) - 4, ".ppd"))
1267 {
1268 /*
1269 * Send PPD file - get the real printer name since printer
1270 * names are not case sensitive but filenames can be...
1271 */
1272
1273 con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */
1274
1275 if ((p = cupsdFindPrinter(con->uri + 10)) != NULL)
1276 snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name);
1277 else
1278 {
5bd77a73 1279 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1280 {
1281 cupsdCloseClient(con);
1282 return;
1283 }
ef416fc2 1284
1285 break;
1286 }
1287 }
1288
1289 if ((!strncmp(con->uri, "/admin", 6) &&
1290 strncmp(con->uri, "/admin/conf/", 12) &&
1291 strncmp(con->uri, "/admin/log/", 11)) ||
1292 !strncmp(con->uri, "/printers", 9) ||
1293 !strncmp(con->uri, "/classes", 8) ||
1294 !strncmp(con->uri, "/help", 5) ||
1295 !strncmp(con->uri, "/jobs", 5))
1296 {
1297 /*
1298 * Send CGI output...
1299 */
1300
1301 if (!strncmp(con->uri, "/admin", 6))
1302 {
1303 cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi",
1304 ServerBin);
1305
b423cd4c 1306 cupsdSetString(&con->options, strchr(con->uri + 6, '?'));
ef416fc2 1307 }
1308 else if (!strncmp(con->uri, "/printers", 9))
1309 {
1310 cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi",
1311 ServerBin);
b423cd4c 1312
1313 if (con->uri[9] && con->uri[10])
1314 cupsdSetString(&con->options, con->uri + 9);
1315 else
1316 cupsdSetString(&con->options, NULL);
ef416fc2 1317 }
1318 else if (!strncmp(con->uri, "/classes", 8))
1319 {
1320 cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi",
1321 ServerBin);
b423cd4c 1322
1323 if (con->uri[8] && con->uri[9])
1324 cupsdSetString(&con->options, con->uri + 8);
1325 else
1326 cupsdSetString(&con->options, NULL);
ef416fc2 1327 }
1328 else if (!strncmp(con->uri, "/jobs", 5))
1329 {
1330 cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi",
1331 ServerBin);
b423cd4c 1332
1333 if (con->uri[5] && con->uri[6])
1334 cupsdSetString(&con->options, con->uri + 5);
1335 else
1336 cupsdSetString(&con->options, NULL);
ef416fc2 1337 }
1338 else
1339 {
1340 cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi",
1341 ServerBin);
ef416fc2 1342
b423cd4c 1343 if (con->uri[5] && con->uri[6])
1344 cupsdSetString(&con->options, con->uri + 5);
1345 else
1346 cupsdSetString(&con->options, NULL);
1347 }
ef416fc2 1348
1349 if (!cupsdSendCommand(con, con->command, con->options, 0))
1350 {
5bd77a73 1351 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1352 {
1353 cupsdCloseClient(con);
1354 return;
1355 }
ef416fc2 1356 }
1357 else
1358 cupsdLogRequest(con, HTTP_OK);
1359
1360 if (con->http.version <= HTTP_1_0)
1361 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
1362 }
1363 else if ((!strncmp(con->uri, "/admin/conf/", 12) &&
1364 (strchr(con->uri + 12, '/') ||
1365 strlen(con->uri) == 12)) ||
1366 (!strncmp(con->uri, "/admin/log/", 11) &&
1367 (strchr(con->uri + 11, '/') ||
1368 strlen(con->uri) == 11)))
1369 {
1370 /*
1371 * GET can only be done to configuration files under
1372 * /admin/conf...
1373 */
1374
5bd77a73 1375 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1376 {
1377 cupsdCloseClient(con);
1378 return;
1379 }
ef416fc2 1380
1381 break;
1382 }
1383 else
1384 {
1385 /*
1386 * Serve a file...
1387 */
1388
1389 if ((filename = get_file(con, &filestats, buf,
1390 sizeof(buf))) == NULL)
1391 {
5bd77a73 1392 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1393 {
1394 cupsdCloseClient(con);
1395 return;
1396 }
ef416fc2 1397
1398 break;
1399 }
1400
4400e98d 1401 type = mimeFileType(MimeDatabase, filename, NULL, NULL);
ef416fc2 1402
e1d6a774 1403 if (is_cgi(con, filename, &filestats, type))
ef416fc2 1404 {
1405 /*
1406 * Note: con->command and con->options were set by
e1d6a774 1407 * is_cgi()...
ef416fc2 1408 */
1409
1410 if (!cupsdSendCommand(con, con->command, con->options, 0))
1411 {
5bd77a73 1412 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1413 {
1414 cupsdCloseClient(con);
1415 return;
1416 }
ef416fc2 1417 }
1418 else
1419 cupsdLogRequest(con, HTTP_OK);
1420
1421 if (con->http.version <= HTTP_1_0)
1422 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
1423 break;
1424 }
1425
1426 if (!check_if_modified(con, &filestats))
1427 {
5bd77a73 1428 if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE))
f7deaa1a 1429 {
1430 cupsdCloseClient(con);
1431 return;
1432 }
ef416fc2 1433 }
1434 else
1435 {
1436 if (type == NULL)
1437 strcpy(line, "text/plain");
1438 else
1439 snprintf(line, sizeof(line), "%s/%s", type->super, type->type);
1440
a74454a7 1441 if (!write_file(con, HTTP_OK, filename, line, &filestats))
f7deaa1a 1442 {
1443 cupsdCloseClient(con);
1444 return;
1445 }
ef416fc2 1446 }
1447 }
1448 break;
1449
1450 case HTTP_POST_RECV :
1451 /*
1452 * See if the POST request includes a Content-Length field, and if
1453 * so check the length against any limits that are set...
1454 */
1455
1456 cupsdLogMessage(CUPSD_LOG_DEBUG2, "POST %s", con->uri);
1457 cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s",
1458 con->http.fields[HTTP_FIELD_CONTENT_TYPE]);
1459
1460 if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] &&
1461 MaxRequestSize > 0 &&
1462 con->http.data_remaining > MaxRequestSize)
1463 {
1464 /*
1465 * Request too large...
1466 */
1467
5bd77a73 1468 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1469 {
1470 cupsdCloseClient(con);
1471 return;
1472 }
ef416fc2 1473
1474 break;
1475 }
839a51c8
MS		 1476 else if (con->http.data_remaining < 0 ||
1477 (!con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] &&
1478 con->http.data_encoding == HTTP_ENCODE_LENGTH))
ef416fc2 1479 {
1480 /*
1481 * Negative content lengths are invalid!
1482 */
1483
5bd77a73 1484 if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE))
f7deaa1a 1485 {
1486 cupsdCloseClient(con);
1487 return;
1488 }
ef416fc2 1489
1490 break;
1491 }
1492
1493 /*
1494 * See what kind of POST request this is; for IPP requests the
1495 * content-type field will be "application/ipp"...
1496 */
1497
1498 if (!strcmp(con->http.fields[HTTP_FIELD_CONTENT_TYPE],
1499 "application/ipp"))
1500 con->request = ippNew();
1501 else if ((!strncmp(con->uri, "/admin", 6) &&
1502 strncmp(con->uri, "/admin/conf/", 12) &&
1503 strncmp(con->uri, "/admin/log/", 11)) ||
1504 !strncmp(con->uri, "/printers", 9) ||
1505 !strncmp(con->uri, "/classes", 8) ||
1506 !strncmp(con->uri, "/help", 5) ||
1507 !strncmp(con->uri, "/jobs", 5))
1508 {
1509 /*
1510 * CGI request...
1511 */
1512
1513 if (!strncmp(con->uri, "/admin", 6))
1514 {
1515 cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi",
1516 ServerBin);
1517
b423cd4c 1518 cupsdSetString(&con->options, strchr(con->uri + 6, '?'));
ef416fc2 1519 }
1520 else if (!strncmp(con->uri, "/printers", 9))
1521 {
1522 cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi",
1523 ServerBin);
b423cd4c 1524
1525 if (con->uri[9] && con->uri[10])
1526 cupsdSetString(&con->options, con->uri + 9);
1527 else
1528 cupsdSetString(&con->options, NULL);
ef416fc2 1529 }
1530 else if (!strncmp(con->uri, "/classes", 8))
1531 {
1532 cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi",
1533 ServerBin);
b423cd4c 1534
1535 if (con->uri[8] && con->uri[9])
1536 cupsdSetString(&con->options, con->uri + 8);
1537 else
1538 cupsdSetString(&con->options, NULL);
ef416fc2 1539 }
1540 else if (!strncmp(con->uri, "/jobs", 5))
1541 {
1542 cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi",
1543 ServerBin);
b423cd4c 1544
1545 if (con->uri[5] && con->uri[6])
1546 cupsdSetString(&con->options, con->uri + 5);
1547 else
1548 cupsdSetString(&con->options, NULL);
ef416fc2 1549 }
1550 else
1551 {
1552 cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi",
1553 ServerBin);
ef416fc2 1554
b423cd4c 1555 if (con->uri[5] && con->uri[6])
1556 cupsdSetString(&con->options, con->uri + 5);
1557 else
1558 cupsdSetString(&con->options, NULL);
1559 }
ef416fc2 1560
1561 cupsdLogMessage(CUPSD_LOG_DEBUG2,
b423cd4c 1562 "cupsdReadClient: %d command=\"%s\", "
1563 "options = \"%s\"",
f301802f 1564 con->http.fd, con->command,
1565 con->options ? con->options : "(null)");
ef416fc2 1566
1567 if (con->http.version <= HTTP_1_0)
1568 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
1569 }
1570 else
1571 {
1572 /*
1573 * POST to a file...
1574 */
1575
1576 if ((filename = get_file(con, &filestats, buf,
1577 sizeof(buf))) == NULL)
1578 {
5bd77a73 1579 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1580 {
1581 cupsdCloseClient(con);
1582 return;
1583 }
ef416fc2 1584
1585 break;
1586 }
1587
4400e98d 1588 type = mimeFileType(MimeDatabase, filename, NULL, NULL);
ef416fc2 1589
e1d6a774 1590 if (!is_cgi(con, filename, &filestats, type))
ef416fc2 1591 {
1592 /*
1593 * Only POST to CGI's...
1594 */
1595
5bd77a73 1596 if (!cupsdSendError(con, HTTP_UNAUTHORIZED, CUPSD_AUTH_NONE))
f7deaa1a 1597 {
1598 cupsdCloseClient(con);
1599 return;
1600 }
ef416fc2 1601 }
1602 }
1603 break;
1604
1605 case HTTP_PUT_RECV :
1606 /*
1607 * Validate the resource name...
1608 */
1609
1610 if (strncmp(con->uri, "/admin/conf/", 12) ||
1611 strchr(con->uri + 12, '/') ||
1612 strlen(con->uri) == 12)
1613 {
1614 /*
1615 * PUT can only be done to configuration files under
1616 * /admin/conf...
1617 */
1618
5bd77a73 1619 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1620 {
1621 cupsdCloseClient(con);
1622 return;
1623 }
ef416fc2 1624
1625 break;
1626 }
1627
1628 /*
1629 * See if the PUT request includes a Content-Length field, and if
1630 * so check the length against any limits that are set...
1631 */
1632
1633 cupsdLogMessage(CUPSD_LOG_DEBUG2, "PUT %s", con->uri);
1634 cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s",
1635 con->http.fields[HTTP_FIELD_CONTENT_TYPE]);
1636
1637 if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] &&
1638 MaxRequestSize > 0 &&
1639 con->http.data_remaining > MaxRequestSize)
1640 {
1641 /*
1642 * Request too large...
1643 */
1644
5bd77a73 1645 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1646 {
1647 cupsdCloseClient(con);
1648 return;
1649 }
ef416fc2 1650
1651 break;
1652 }
1653 else if (con->http.data_remaining < 0)
1654 {
1655 /*
1656 * Negative content lengths are invalid!
1657 */
1658
5bd77a73 1659 if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE))
f7deaa1a 1660 {
1661 cupsdCloseClient(con);
1662 return;
1663 }
ef416fc2 1664
1665 break;
1666 }
1667
1668 /*
1669 * Open a temporary file to hold the request...
1670 */
1671
1672 cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot,
1673 request_id ++);
1674 con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640);
1675
ef416fc2 1676 if (con->file < 0)
1677 {
a4924f6c
MS		 1678 cupsdLogMessage(CUPSD_LOG_ERROR,
1679 "Unable to create request file %s: %s",
1680 con->filename, strerror(errno));
1681
5bd77a73 1682 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1683 {
1684 cupsdCloseClient(con);
1685 return;
1686 }
ef416fc2 1687 }
1688
a4924f6c
MS		 1689 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1690 "cupsdReadClient: %d REQUEST %s=%d", con->http.fd,
1691 con->filename, con->file);
1692
ef416fc2 1693 fchmod(con->file, 0640);
1694 fchown(con->file, RunUser, Group);
1695 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
1696 break;
1697
1698 case HTTP_DELETE :
1699 case HTTP_TRACE :
5bd77a73 1700 cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE);
f7deaa1a 1701 cupsdCloseClient(con);
1702 return;
ef416fc2 1703
1704 case HTTP_HEAD :
1705 if (!strncmp(con->uri, "/printers/", 10) &&
1706 !strcmp(con->uri + strlen(con->uri) - 4, ".ppd"))
1707 {
1708 /*
1709 * Send PPD file - get the real printer name since printer
1710 * names are not case sensitive but filenames can be...
1711 */
1712
1713 con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */
1714
1715 if ((p = cupsdFindPrinter(con->uri + 10)) != NULL)
1716 snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name);
1717 else
1718 {
5bd77a73 1719 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1720 {
1721 cupsdCloseClient(con);
1722 return;
1723 }
ef416fc2 1724
1725 break;
1726 }
1727 }
1728
1729 if ((!strncmp(con->uri, "/admin", 6) &&
1730 strncmp(con->uri, "/admin/conf/", 12) &&
1731 strncmp(con->uri, "/admin/log/", 11)) ||
1732 !strncmp(con->uri, "/printers", 9) ||
1733 !strncmp(con->uri, "/classes", 8) ||
1734 !strncmp(con->uri, "/help", 5) ||
1735 !strncmp(con->uri, "/jobs", 5))
1736 {
1737 /*
1738 * CGI output...
1739 */
1740
5bd77a73 1741 if (!cupsdSendHeader(con, HTTP_OK, "text/html", CUPSD_AUTH_NONE))
f7deaa1a 1742 {
1743 cupsdCloseClient(con);
1744 return;
1745 }
ef416fc2 1746
1747 if (httpPrintf(HTTP(con), "\r\n") < 0)
f7deaa1a 1748 {
1749 cupsdCloseClient(con);
1750 return;
1751 }
ef416fc2 1752
07725fee 1753 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1754 {
1755 cupsdCloseClient(con);
1756 return;
1757 }
d09495fa 1758
ef416fc2 1759 cupsdLogRequest(con, HTTP_OK);
1760 }
1761 else if ((!strncmp(con->uri, "/admin/conf/", 12) &&
1762 (strchr(con->uri + 12, '/') ||
1763 strlen(con->uri) == 12)) ||
1764 (!strncmp(con->uri, "/admin/log/", 11) &&
1765 (strchr(con->uri + 11, '/') ||
1766 strlen(con->uri) == 11)))
1767 {
1768 /*
1769 * HEAD can only be done to configuration files under
1770 * /admin/conf...
1771 */
1772
5bd77a73 1773 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1774 {
1775 cupsdCloseClient(con);
1776 return;
1777 }
ef416fc2 1778
1779 break;
1780 }
1781 else if ((filename = get_file(con, &filestats, buf,
1782 sizeof(buf))) == NULL)
1783 {
5bd77a73 1784 if (!cupsdSendHeader(con, HTTP_NOT_FOUND, "text/html", CUPSD_AUTH_NONE))
f7deaa1a 1785 {
1786 cupsdCloseClient(con);
1787 return;
1788 }
ef416fc2 1789
1790 cupsdLogRequest(con, HTTP_NOT_FOUND);
1791 }
1792 else if (!check_if_modified(con, &filestats))
1793 {
5bd77a73 1794 if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE))
f7deaa1a 1795 {
1796 cupsdCloseClient(con);
1797 return;
1798 }
ef416fc2 1799
1800 cupsdLogRequest(con, HTTP_NOT_MODIFIED);
1801 }
1802 else
1803 {
1804 /*
1805 * Serve a file...
1806 */
1807
4400e98d 1808 type = mimeFileType(MimeDatabase, filename, NULL, NULL);
ef416fc2 1809 if (type == NULL)
1810 strcpy(line, "text/plain");
1811 else
1812 snprintf(line, sizeof(line), "%s/%s", type->super, type->type);
1813
5bd77a73 1814 if (!cupsdSendHeader(con, HTTP_OK, line, CUPSD_AUTH_NONE))
f7deaa1a 1815 {
1816 cupsdCloseClient(con);
1817 return;
1818 }
ef416fc2 1819
1820 if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n",
1821 httpGetDateString(filestats.st_mtime)) < 0)
f7deaa1a 1822 {
1823 cupsdCloseClient(con);
1824 return;
1825 }
ef416fc2 1826
1827 if (httpPrintf(HTTP(con), "Content-Length: %lu\r\n",
1828 (unsigned long)filestats.st_size) < 0)
f7deaa1a 1829 {
1830 cupsdCloseClient(con);
1831 return;
1832 }
ef416fc2 1833
1834 cupsdLogRequest(con, HTTP_OK);
1835 }
1836
1837 if (httpPrintf(HTTP(con), "\r\n") < 0)
f7deaa1a 1838 {
1839 cupsdCloseClient(con);
1840 return;
1841 }
ef416fc2 1842
07725fee 1843 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1844 {
1845 cupsdCloseClient(con);
1846 return;
1847 }
d09495fa 1848
ef416fc2 1849 con->http.state = HTTP_WAITING;
1850 break;
1851
1852 default :
1853 break; /* Anti-compiler-warning-code */
1854 }
1855 }
1856 }
1857
1858 /*
1859 * Handle any incoming data...
1860 */
1861
1862 switch (con->http.state)
1863 {
1864 case HTTP_PUT_RECV :
1865 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1866 "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_%s, "
1867 "con->data_remaining=" CUPS_LLFMT ", con->file=%d",
1868 con->http.fd,
1869 con->http.data_encoding == HTTP_ENCODE_CHUNKED ?
1870 "CHUNKED" : "LENGTH",
1871 CUPS_LLCAST con->http.data_remaining, con->file);
1872
f7deaa1a 1873 do
ef416fc2 1874 {
f7deaa1a 1875 if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0)
1876 {
1877 cupsdCloseClient(con);
1878 return;
1879 }
1880 else if (bytes > 0)
1881 {
1882 con->bytes += bytes;
ef416fc2 1883
f7deaa1a 1884 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1885 "cupsdReadClient: %d writing %d bytes to %d",
1886 con->http.fd, bytes, con->file);
ef416fc2 1887
f7deaa1a 1888 if (write(con->file, line, bytes) < bytes)
1889 {
1890 cupsdLogMessage(CUPSD_LOG_ERROR,
1891 "cupsdReadClient: Unable to write %d bytes to %s: %s",
1892 bytes, con->filename, strerror(errno));
ef416fc2 1893
f7deaa1a 1894 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1895 "cupsdReadClient: Closing data file %d...",
1896 con->file);
ef416fc2 1897
f7deaa1a 1898 close(con->file);
1899 con->file = -1;
1900 unlink(con->filename);
1901 cupsdClearString(&con->filename);
ef416fc2 1902
5bd77a73 1903 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1904 {
1905 cupsdCloseClient(con);
1906 return;
1907 }
1908 }
ef416fc2 1909 }
f7deaa1a 1910 }
1911 while (con->http.state == HTTP_PUT_RECV && con->http.used > 0);
ef416fc2 1912
1913 if (con->http.state == HTTP_WAITING)
1914 {
1915 /*
1916 * End of file, see how big it is...
1917 */
1918
1919 fstat(con->file, &filestats);
1920
1921 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1922 "cupsdReadClient: %d Closing data file %d, size="
1923 CUPS_LLFMT ".",
1924 con->http.fd, con->file,
1925 CUPS_LLCAST filestats.st_size);
1926
1927 close(con->file);
1928 con->file = -1;
1929
1930 if (filestats.st_size > MaxRequestSize &&
1931 MaxRequestSize > 0)
1932 {
1933 /*
1934 * Request is too big; remove it and send an error...
1935 */
1936
1937 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1938 "cupsdReadClient: %d Removing temp file %s",
1939 con->http.fd, con->filename);
1940 unlink(con->filename);
1941 cupsdClearString(&con->filename);
1942
5bd77a73 1943 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1944 {
1945 cupsdCloseClient(con);
1946 return;
1947 }
ef416fc2 1948 }
1949
1950 /*
1951 * Install the configuration file...
1952 */
1953
1954 status = install_conf_file(con);
1955
1956 /*
1957 * Return the status to the client...
1958 */
1959
5bd77a73 1960 if (!cupsdSendError(con, status, CUPSD_AUTH_NONE))
f7deaa1a 1961 {
1962 cupsdCloseClient(con);
1963 return;
1964 }
ef416fc2 1965 }
1966 break;
1967
1968 case HTTP_POST_RECV :
1969 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1970 "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_"
1971 "%s, con->data_remaining=" CUPS_LLFMT ", con->file=%d",
1972 con->http.fd,
1973 con->http.data_encoding == HTTP_ENCODE_CHUNKED ?
1974 "CHUNKED" : "LENGTH",
1975 CUPS_LLCAST con->http.data_remaining, con->file);
1976
f7deaa1a 1977 do
ef416fc2 1978 {
f7deaa1a 1979 if (con->request)
ef416fc2 1980 {
f7deaa1a 1981 /*
1982 * Grab any request data from the connection...
1983 */
ef416fc2 1984
f7deaa1a 1985 if ((ipp_state = ippRead(&(con->http), con->request)) == IPP_ERROR)
ef416fc2 1986 {
f7deaa1a 1987 cupsdLogMessage(CUPSD_LOG_ERROR,
1988 "cupsdReadClient: %d IPP Read Error!",
1989 con->http.fd);
1990
5bd77a73 1991 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 1992 cupsdCloseClient(con);
1993 return;
ef416fc2 1994 }
f7deaa1a 1995 else if (ipp_state != IPP_DATA)
1996 {
1997 if (con->http.state == HTTP_POST_SEND)
1998 {
5bd77a73 1999 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 2000 cupsdCloseClient(con);
2001 return;
2002 }
ef416fc2 2003
f7deaa1a 2004 break;
2005 }
2006 else
2007 con->bytes += ippLength(con->request);
2008 }
ef416fc2 2009
f7deaa1a 2010 if (con->file < 0 && con->http.state != HTTP_POST_SEND)
2011 {
2012 /*
2013 * Create a file as needed for the request data...
2014 */
ef416fc2 2015
f7deaa1a 2016 cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, request_id ++);
2017 con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640);
ef416fc2 2018
f7deaa1a 2019 if (con->file < 0)
2020 {
a4924f6c
MS		 2021 cupsdLogMessage(CUPSD_LOG_ERROR,
2022 "Unable to create request file %s: %s",
2023 con->filename, strerror(errno));
2024
5bd77a73 2025 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 2026 {
2027 cupsdCloseClient(con);
2028 return;
2029 }
2030 }
ef416fc2 2031
a4924f6c
MS		 2032 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: %d REQUEST %s=%d", con->http.fd,
2033 con->filename, con->file);
2034
f7deaa1a 2035 fchmod(con->file, 0640);
2036 fchown(con->file, RunUser, Group);
2037 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
2038 }
ef416fc2 2039
f7deaa1a 2040 if (con->http.state != HTTP_POST_SEND)
ef416fc2 2041 {
f7deaa1a 2042 if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0)
2043 {
2044 cupsdCloseClient(con);
2045 return;
2046 }
2047 else if (bytes > 0)
2048 {
2049 con->bytes += bytes;
ef416fc2 2050
f7deaa1a 2051 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2052 "cupsdReadClient: %d writing %d bytes to %d",
2053 con->http.fd, bytes, con->file);
ef416fc2 2054
f7deaa1a 2055 if (write(con->file, line, bytes) < bytes)
2056 {
2057 cupsdLogMessage(CUPSD_LOG_ERROR,
2058 "cupsdReadClient: Unable to write %d bytes to %s: %s",
2059 bytes, con->filename, strerror(errno));
ef416fc2 2060
f7deaa1a 2061 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2062 "cupsdReadClient: Closing file %d...",
2063 con->file);
ef416fc2 2064
f7deaa1a 2065 close(con->file);
2066 con->file = -1;
2067 unlink(con->filename);
2068 cupsdClearString(&con->filename);
ef416fc2 2069
5bd77a73 2070 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 2071 {
2072 cupsdCloseClient(con);
2073 return;
2074 }
2075 }
2076 }
2077 else if (con->http.state == HTTP_POST_RECV)
2078 return;
2079 else if (con->http.state != HTTP_POST_SEND)
2080 {
2081 cupsdCloseClient(con);
2082 return;
ef416fc2 2083 }
2084 }
f7deaa1a 2085 }
2086 while (con->http.state == HTTP_POST_RECV && con->http.used > 0);
ef416fc2 2087
2088 if (con->http.state == HTTP_POST_SEND)
2089 {
2090 if (con->file >= 0)
2091 {
2092 fstat(con->file, &filestats);
2093
2094 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2095 "cupsdReadClient: %d Closing data file %d, "
2096 "size=" CUPS_LLFMT ".",
2097 con->http.fd, con->file,
2098 CUPS_LLCAST filestats.st_size);
2099
2100 close(con->file);
2101 con->file = -1;
2102
2103 if (filestats.st_size > MaxRequestSize &&
2104 MaxRequestSize > 0)
2105 {
2106 /*
2107 * Request is too big; remove it and send an error...
2108 */
2109
2110 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2111 "cupsdReadClient: %d Removing temp file %s",
2112 con->http.fd, con->filename);
2113 unlink(con->filename);
2114 cupsdClearString(&con->filename);
2115
2116 if (con->request)
2117 {
2118 /*
2119 * Delete any IPP request data...
2120 */
2121
2122 ippDelete(con->request);
2123 con->request = NULL;
2124 }
2125
5bd77a73 2126 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 2127 {
2128 cupsdCloseClient(con);
2129 return;
2130 }
ef416fc2 2131 }
2132
2133 if (con->command)
2134 {
2135 if (!cupsdSendCommand(con, con->command, con->options, 0))
2136 {
5bd77a73 2137 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 2138 {
2139 cupsdCloseClient(con);
2140 return;
2141 }
ef416fc2 2142 }
2143 else
2144 cupsdLogRequest(con, HTTP_OK);
2145 }
2146 }
2147
2148 if (con->request)
f7deaa1a 2149 {
2150 cupsdProcessIPPRequest(con);
bc44d920 2151
2152 if (con->filename)
2153 {
2154 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2155 "cupsdReadClient: %d Removing temp file %s",
2156 con->http.fd, con->filename);
2157 unlink(con->filename);
2158 cupsdClearString(&con->filename);
2159 }
2160
f7deaa1a 2161 return;
2162 }
ef416fc2 2163 }
2164 break;
2165
2166 default :
2167 break; /* Anti-compiler-warning-code */
2168 }
2169
3dfe78b3
MS		 2170 if (con->http.state == HTTP_WAITING)
2171 {
2172 if (!con->http.keep_alive)
2173 cupsdCloseClient(con);
2174 else
2175 {
2176 cupsArrayRemove(ActiveClients, con);
2177 cupsdSetBusyState();
2178 }
2179 }
ef416fc2 2180}
2181
2182
2183/*
2184 * 'cupsdSendCommand()' - Send output from a command via HTTP.
2185 */
2186
2187int /* O - 1 on success, 0 on failure */
2188cupsdSendCommand(
2189 cupsd_client_t *con, /* I - Client connection */
2190 char *command, /* I - Command to run */
2191 char *options, /* I - Command-line options */
2192 int root) /* I - Run as root? */
2193{
2194 int fd; /* Standard input file descriptor */
2195
2196
2197 if (con->filename)
ed486911 2198 {
ef416fc2 2199 fd = open(con->filename, O_RDONLY);
ef416fc2 2200
ed486911 2201 if (fd < 0)
2202 {
2203 cupsdLogMessage(CUPSD_LOG_ERROR,
2204 "cupsdSendCommand: %d Unable to open \"%s\" for reading: %s",
2205 con->http.fd, con->filename ? con->filename : "/dev/null",
2206 strerror(errno));
2207 return (0);
2208 }
ef416fc2 2209
ed486911 2210 fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
2211 }
2212 else
2213 fd = -1;
ef416fc2 2214
2215 con->pipe_pid = pipe_command(con, fd, &(con->file), command, options, root);
2216
ed486911 2217 if (fd >= 0)
2218 close(fd);
ef416fc2 2219
2220 cupsdLogMessage(CUPSD_LOG_INFO, "Started \"%s\" (pid=%d)", command,
2221 con->pipe_pid);
2222
2223 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendCommand: %d file=%d",
2224 con->http.fd, con->file);
2225
2226 if (con->pipe_pid == 0)
2227 return (0);
2228
2229 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
2230
f899b121 2231 cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con);
ef416fc2 2232
2233 con->sent_header = 0;
2234 con->file_ready = 0;
2235 con->got_fields = 0;
2236 con->field_col = 0;
2237
2238 return (1);
2239}
2240
2241
2242/*
2243 * 'cupsdSendError()' - Send an error message via HTTP.
2244 */
2245
2246int /* O - 1 if successful, 0 otherwise */
2247cupsdSendError(cupsd_client_t *con, /* I - Connection */
f899b121 2248 http_status_t code, /* I - Error code */
2249 int auth_type)/* I - Authentication type */
ef416fc2 2250{
4744bd90 2251#ifdef HAVE_SSL
2252 /*
2253 * Force client to upgrade for authentication if that is how the
2254 * server is configured...
2255 */
2256
2257 if (code == HTTP_UNAUTHORIZED &&
2258 DefaultEncryption == HTTP_ENCRYPT_REQUIRED &&
2259 strcasecmp(con->http.hostname, "localhost") &&
2260 !con->http.tls)
2261 {
2262 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2263 "cupsdSendError: Encryption before authentication!");
2264 code = HTTP_UPGRADE_REQUIRED;
2265 }
2266#endif /* HAVE_SSL */
2267
ef416fc2 2268 /*
2269 * Put the request in the access_log file...
2270 */
2271
2272 cupsdLogRequest(con, code);
2273
2274 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendError: %d code=%d (%s)",
2275 con->http.fd, code, httpStatus(code));
2276
2277 /*
2278 * To work around bugs in some proxies, don't use Keep-Alive for some
2279 * error messages...
f7deaa1a 2280 *
2281 * Kerberos authentication doesn't work without Keep-Alive, so
2282 * never disable it in that case.
ef416fc2 2283 */
2284
5bd77a73 2285 if (code >= HTTP_BAD_REQUEST && con->http.auth_type != CUPSD_AUTH_NEGOTIATE)
ef416fc2 2286 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
2287
2288 /*
2289 * Send an error message back to the client. If the error code is a
2290 * 400 or 500 series, make sure the message contains some text, too!
2291 */
2292
f899b121 2293 if (!cupsdSendHeader(con, code, NULL, auth_type))
ef416fc2 2294 return (0);
2295
2296#ifdef HAVE_SSL
2297 if (code == HTTP_UPGRADE_REQUIRED)
2298 if (httpPrintf(HTTP(con), "Connection: Upgrade\r\n") < 0)
2299 return (0);
2300
2301 if (httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0)
2302 return (0);
2303#endif /* HAVE_SSL */
2304
f7deaa1a 2305 if (con->http.version >= HTTP_1_1 &&
2306 con->http.keep_alive == HTTP_KEEPALIVE_OFF)
ef416fc2 2307 {
2308 if (httpPrintf(HTTP(con), "Connection: close\r\n") < 0)
2309 return (0);
2310 }
2311
2312 if (code >= HTTP_BAD_REQUEST)
2313 {
2314 /*
2315 * Send a human-readable error message.
2316 */
2317
80ca4592 2318 char message[4096], /* Message for user */
2319 urltext[1024], /* URL redirection text */
2320 redirect[1024]; /* Redirection link */
ef416fc2 2321 const char *text; /* Status-specific text */
2322
80ca4592 2323
2324 redirect[0] = '\0';
2325
ef416fc2 2326 if (code == HTTP_UNAUTHORIZED)
2327 text = _cupsLangString(con->language,
2328 _("Enter your username and password or the "
2329 "root username and password to access this "
f7deaa1a 2330 "page. If you are using Kerberos authentication, "
2331 "make sure you have a valid Kerberos ticket."));
ef416fc2 2332 else if (code == HTTP_UPGRADE_REQUIRED)
80ca4592 2333 {
2334 text = urltext;
2335
2336 snprintf(urltext, sizeof(urltext),
2337 _cupsLangString(con->language,
2338 _("You must access this page using the URL "
2339 "<A HREF=\"https://%s:%d%s\">"
2340 "https://%s:%d%s</A>.")),
2341 con->servername, con->serverport, con->uri,
2342 con->servername, con->serverport, con->uri);
2343
2344 snprintf(redirect, sizeof(redirect),
b86bc4cf 2345 "<META HTTP-EQUIV=\"Refresh\" "
2346 "CONTENT=\"3;URL=https://%s:%d%s\">\n",
80ca4592 2347 con->servername, con->serverport, con->uri);
2348 }
ef416fc2 2349 else
2350 text = "";
2351
2352 snprintf(message, sizeof(message),
2353 "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" "
2354 "\"http://www.w3.org/TR/REC-html40/loose.dtd\">\n"
2355 "<HTML>\n"
2356 "<HEAD>\n"
2357 "\t<META HTTP-EQUIV=\"Content-Type\" "
2358 "CONTENT=\"text/html; charset=utf-8\">\n"
2359 "\t<TITLE>%d %s</TITLE>\n"
2360 "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" "
2361 "HREF=\"/cups.css\">\n"
80ca4592 2362 "%s"
ef416fc2 2363 "</HEAD>\n"
2364 "<BODY>\n"
2365 "<H1>%d %s</H1>\n"
2366 "<P>%s</P>\n"
2367 "</BODY>\n"
2368 "</HTML>\n",
80ca4592 2369 code, httpStatus(code), redirect, code, httpStatus(code), text);
ef416fc2 2370
2371 if (httpPrintf(HTTP(con), "Content-Type: text/html; charset=utf-8\r\n") < 0)
2372 return (0);
2373 if (httpPrintf(HTTP(con), "Content-Length: %d\r\n",
2374 (int)strlen(message)) < 0)
2375 return (0);
2376 if (httpPrintf(HTTP(con), "\r\n") < 0)
2377 return (0);
2378 if (httpPrintf(HTTP(con), "%s", message) < 0)
2379 return (0);
2380 }
2381 else if (httpPrintf(HTTP(con), "\r\n") < 0)
2382 return (0);
2383
07725fee 2384 if (cupsdFlushHeader(con) < 0)
2385 return (0);
d09495fa 2386
ef416fc2 2387 con->http.state = HTTP_WAITING;
2388
2389 return (1);
2390}
2391
2392
ef416fc2 2393/*
2394 * 'cupsdSendHeader()' - Send an HTTP request.
2395 */
2396
2397int /* O - 1 on success, 0 on failure */
f899b121 2398cupsdSendHeader(
2399 cupsd_client_t *con, /* I - Client to send to */
2400 http_status_t code, /* I - HTTP status code */
2401 char *type, /* I - MIME type of document */
2402 int auth_type) /* I - Type of authentication */
ef416fc2 2403{
5a738aea
MS		 2404 char auth_str[1024]; /* Authorization string */
2405#ifdef HAVE_GSSAPI
2406 static char *gss_buf = NULL; /* Kerberos auth data buffer */
2407 static int gss_bufsize = 0; /* Size of Kerberos auth data buffer */
2408#endif /* HAVE_GSSAPI */
f7deaa1a 2409
2410
4744bd90 2411 /*
2412 * Send the HTTP status header...
2413 */
2414
b423cd4c 2415 if (code == HTTP_CONTINUE)
2416 {
4744bd90 2417 /*
2418 * 100-continue doesn't send any headers...
2419 */
2420
07725fee 2421 return (httpPrintf(HTTP(con), "HTTP/%d.%d 100 Continue\r\n\r\n",
2422 con->http.version / 100, con->http.version % 100) > 0);
b423cd4c 2423 }
2424
07725fee 2425 httpFlushWrite(HTTP(con));
2426
2427 con->http.data_encoding = HTTP_ENCODE_FIELDS;
2428
2429 if (httpPrintf(HTTP(con), "HTTP/%d.%d %d %s\r\n", con->http.version / 100,
2430 con->http.version % 100, code, httpStatus(code)) < 0)
2431 return (0);
ef416fc2 2432 if (httpPrintf(HTTP(con), "Date: %s\r\n", httpGetDateString(time(NULL))) < 0)
2433 return (0);
2434 if (ServerHeader)
2435 if (httpPrintf(HTTP(con), "Server: %s\r\n", ServerHeader) < 0)
2436 return (0);
2437 if (con->http.keep_alive && con->http.version >= HTTP_1_0)
2438 {
2439 if (httpPrintf(HTTP(con), "Connection: Keep-Alive\r\n") < 0)
2440 return (0);
2441 if (httpPrintf(HTTP(con), "Keep-Alive: timeout=%d\r\n",
2442 KeepAliveTimeout) < 0)
2443 return (0);
2444 }
2445 if (code == HTTP_METHOD_NOT_ALLOWED)
2446 if (httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST\r\n") < 0)
2447 return (0);
2448
2449 if (code == HTTP_UNAUTHORIZED)
2450 {
5bd77a73 2451 if (auth_type == CUPSD_AUTH_NONE)
f899b121 2452 {
5bd77a73 2453 if (!con->best || con->best->type <= CUPSD_AUTH_NONE)
f899b121 2454 auth_type = DefaultAuthType;
2455 else
2456 auth_type = con->best->type;
2457 }
f7deaa1a 2458
2459 auth_str[0] = '\0';
2460
5bd77a73 2461 if (auth_type == CUPSD_AUTH_BASIC || auth_type == CUPSD_AUTH_BASICDIGEST)
f7deaa1a 2462 strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str));
5bd77a73 2463 else if (auth_type == CUPSD_AUTH_DIGEST)
f7deaa1a 2464 snprintf(auth_str, sizeof(auth_str), "Digest realm=\"CUPS\", nonce=\"%s\"",
2465 con->http.hostname);
2466#ifdef HAVE_GSSAPI
5bd77a73 2467 else if (auth_type == CUPSD_AUTH_NEGOTIATE && con->gss_output_token.length == 0)
f7deaa1a 2468 strlcpy(auth_str, "Negotiate", sizeof(auth_str));
2469#endif /* HAVE_GSSAPI */
2470
2471#ifdef HAVE_AUTHORIZATION_H
5bd77a73 2472 if (con->best && auth_type != CUPSD_AUTH_NEGOTIATE)
ef416fc2 2473 {
f7deaa1a 2474 int i; /* Looping var */
2475 char *auth_key; /* Auth key buffer */
2476 size_t auth_size; /* Size of remaining buffer */
2477
2478
2479 auth_key = auth_str + strlen(auth_str);
2480 auth_size = sizeof(auth_str) - (auth_key - auth_str);
2481
2482 for (i = 0; i < con->best->num_names; i ++)
2483 {
2484 if (!strncasecmp(con->best->names[i], "@AUTHKEY(", 9))
2485 {
2486 snprintf(auth_key, auth_size, ", authkey=\"%s\"",
2487 con->best->names[i] + 9);
2488 /* end parenthesis is stripped in conf.c */
2489 break;
2490 }
2491 else if (!strcasecmp(con->best->names[i], "@SYSTEM") &&
2492 SystemGroupAuthKey)
2493 {
2494 snprintf(auth_key, auth_size, ", authkey=\"%s\"", SystemGroupAuthKey);
2495 break;
2496 }
2497 }
ef416fc2 2498 }
f7deaa1a 2499#endif /* HAVE_AUTHORIZATION_H */
2500
bc44d920 2501 if (auth_str[0])
2502 {
355e94dc 2503 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendHeader: WWW-Authenticate: %s",
bc44d920 2504 auth_str);
2505
2506 if (httpPrintf(HTTP(con), "WWW-Authenticate: %s\r\n", auth_str) < 0)
2507 return (0);
2508 }
ef416fc2 2509 }
2510
f7deaa1a 2511#ifdef HAVE_GSSAPI
2512 /*
2513 * WWW-Authenticate: Negotiate can be included even for
2514 * non-401 replies...
2515 */
2516
5a738aea 2517 if (con->gss_output_token.length > 0 && con->gss_output_token.length <= 65536)
f7deaa1a 2518 {
f7deaa1a 2519 OM_uint32 minor_status; /* Minor status code */
5a738aea
MS		 2520 int bufsize; /* Size of output token buffer */
2521
2522
2523 bufsize = con->gss_output_token.length * 4 / 3 + 2;
2524
2525 if (bufsize > gss_bufsize)
2526 {
2527 char *buf; /* New buffer */
2528
f7deaa1a 2529
5a738aea 2530 bufsize = (bufsize + 1023) & 1023;/* Round up */
f7deaa1a 2531
5a738aea
MS		 2532 if (gss_buf)
2533 buf = realloc(gss_buf, bufsize);
2534 else
2535 buf = malloc(bufsize);
2536
2537 if (!buf)
2538 {
2539 cupsdLogMessage(CUPSD_LOG_ERROR,
2540 "Unable to allocate %d bytes for Kerberos credentials!",
2541 bufsize);
2542 return (0);
2543 }
2544
2545 gss_buf = buf;
2546 gss_bufsize = bufsize;
2547 }
2548
2549 httpEncode64_2(gss_buf, gss_bufsize,
2550 con->gss_output_token.value,
f7deaa1a 2551 con->gss_output_token.length);
2552 gss_release_buffer(&minor_status, &con->gss_output_token);
2553
355e94dc 2554 cupsdLogMessage(CUPSD_LOG_DEBUG,
5a738aea 2555 "cupsdSendHeader: WWW-Authenticate: Negotiate %s", gss_buf);
355e94dc 2556
5a738aea
MS		 2557 if (httpPrintf(HTTP(con), "WWW-Authenticate: Negotiate %s\r\n",
2558 gss_buf) < 0)
f7deaa1a 2559 return (0);
2560 }
5a738aea
MS		 2561 else if (con->gss_output_token.length > 65536)
2562 {
2563 cupsdLogMessage(CUPSD_LOG_ERROR,
2564 "Kerberos credentials larger than 64k (%d)!",
ac884b6a 2565 (int)con->gss_output_token.length);
5a738aea
MS		 2566 return (0);
2567 }
f7deaa1a 2568#endif /* HAVE_GSSAPI */
2569
e1d6a774 2570 if (con->language && strcmp(con->language->language, "C"))
ef416fc2 2571 {
2572 if (httpPrintf(HTTP(con), "Content-Language: %s\r\n",
2573 con->language->language) < 0)
2574 return (0);
2575 }
2576
e1d6a774 2577 if (type)
ef416fc2 2578 {
2579 if (!strcmp(type, "text/html"))
2580 {
2581 if (httpPrintf(HTTP(con),
2582 "Content-Type: text/html; charset=utf-8\r\n") < 0)
2583 return (0);
2584 }
2585 else if (httpPrintf(HTTP(con), "Content-Type: %s\r\n", type) < 0)
2586 return (0);
2587 }
2588
2589 return (1);
2590}
2591
2592
2593/*
2594 * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs.
2595 */
2596
2597void
2598cupsdUpdateCGI(void)
2599{
2600 char *ptr, /* Pointer to end of line in buffer */
2601 message[1024]; /* Pointer to message text */
2602 int loglevel; /* Log level for message */
2603
2604
2605 while ((ptr = cupsdStatBufUpdate(CGIStatusBuffer, &loglevel,
2606 message, sizeof(message))) != NULL)
2607 if (!strchr(CGIStatusBuffer->buffer, '\n'))
2608 break;
2609
d09495fa 2610 if (ptr == NULL && !CGIStatusBuffer->bufused)
ef416fc2 2611 {
2612 /*
2613 * Fatal error on pipe - should never happen!
2614 */
2615
2616 cupsdLogMessage(CUPSD_LOG_CRIT,
2617 "cupsdUpdateCGI: error reading from CGI error pipe - %s",
2618 strerror(errno));
2619 }
2620}
2621
2622
2623/*
2624 * 'cupsdWriteClient()' - Write data to a client as needed.
2625 */
2626
f7deaa1a 2627void
ef416fc2 2628cupsdWriteClient(cupsd_client_t *con) /* I - Client connection */
2629{
2630 int bytes; /* Number of bytes written */
2631 char buf[16385]; /* Data buffer */
2632 char *bufptr; /* Pointer into buffer */
2633 ipp_state_t ipp_state; /* IPP state value */
2634
2635
2636#ifdef DEBUG
2637 cupsdLogMessage(CUPSD_LOG_DEBUG2,
b94498cf 2638 "cupsdWriteClient(con=%p) %d response=%p(%d), file=%d "
ef416fc2 2639 "pipe_pid=%d state=%d",
ae71f5de
MS		 2640 con, con->http.fd, con->response,
2641 con->response ? con->response->state : -1,
b94498cf 2642 con->file, con->pipe_pid, con->http.state);
ef416fc2 2643#endif /* DEBUG */
2644
2645 if (con->http.state != HTTP_GET_SEND &&
2646 con->http.state != HTTP_POST_SEND)
f7deaa1a 2647 return;
2648
2649 if (con->pipe_pid)
2650 {
2651 /*
2652 * Make sure we select on the CGI output...
2653 */
2654
f899b121 2655 cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con);
f7deaa1a 2656
2657 if (!con->file_ready)
2658 {
2659 /*
2660 * Try again later when there is CGI output available...
2661 */
2662
2663 cupsdRemoveSelect(con->http.fd);
2664 return;
2665 }
2666
2667 con->file_ready = 0;
2668 }
ef416fc2 2669
b94498cf 2670 if (con->response && con->response->state != IPP_DATA)
ef416fc2 2671 {
07725fee 2672 ipp_state = ippWrite(HTTP(con), con->response);
b94498cf 2673 bytes = ipp_state != IPP_ERROR &&
2674 (con->file >= 0 || ipp_state != IPP_DATA);
ef416fc2 2675 }
2676 else if ((bytes = read(con->file, buf, sizeof(buf) - 1)) > 0)
2677 {
2678 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2679 "cupsdWriteClient: Read %d bytes from file %d...",
2680 bytes, con->file);
2681
2682 if (con->pipe_pid && !con->got_fields)
2683 {
2684 /*
2685 * Inspect the data for Content-Type and other fields.
2686 */
2687
2688 buf[bytes] = '\0';
2689
2690 for (bufptr = buf; !con->got_fields && *bufptr; bufptr ++)
2691 if (*bufptr == '\n')
2692 {
2693 /*
2694 * Send line to client...
2695 */
2696
2697 if (bufptr > buf && bufptr[-1] == '\r')
2698 bufptr[-1] = '\0';
2699 *bufptr++ = '\0';
2700
2701 cupsdLogMessage(CUPSD_LOG_DEBUG2, "Script header: %s", buf);
2702
2703 if (!con->sent_header)
2704 {
2705 /*
2706 * Handle redirection and CGI status codes...
2707 */
2708
2709 if (!strncasecmp(buf, "Location:", 9))
d6ae789d 2710 {
5bd77a73 2711 cupsdSendHeader(con, HTTP_SEE_OTHER, NULL, CUPSD_AUTH_NONE);
07725fee 2712 con->sent_header = 2;
2713
d6ae789d 2714 if (httpPrintf(HTTP(con), "Content-Length: 0\r\n") < 0)
f7deaa1a 2715 return;
d6ae789d 2716 }
ef416fc2 2717 else if (!strncasecmp(buf, "Status:", 7))
07725fee 2718 {
5bd77a73 2719 cupsdSendError(con, (http_status_t)atoi(buf + 7), CUPSD_AUTH_NONE);
07725fee 2720 con->sent_header = 2;
2721 }
ef416fc2 2722 else
4744bd90 2723 {
5bd77a73 2724 cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE);
07725fee 2725 con->sent_header = 1;
ef416fc2 2726
4744bd90 2727 if (con->http.version == HTTP_1_1)
2728 {
4744bd90 2729 if (httpPrintf(HTTP(con), "Transfer-Encoding: chunked\r\n") < 0)
f7deaa1a 2730 return;
4744bd90 2731 }
2732 }
ef416fc2 2733 }
2734
2735 if (strncasecmp(buf, "Status:", 7))
2736 httpPrintf(HTTP(con), "%s\r\n", buf);
2737
2738 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d %s",
2739 con->http.fd, buf);
2740
2741 /*
2742 * Update buffer...
2743 */
2744
2745 bytes -= (bufptr - buf);
2746 memmove(buf, bufptr, bytes + 1);
2747 bufptr = buf - 1;
2748
2749 /*
2750 * See if the line was empty...
2751 */
2752
2753 if (con->field_col == 0)
d09495fa 2754 {
ef416fc2 2755 con->got_fields = 1;
d09495fa 2756
07725fee 2757 if (cupsdFlushHeader(con) < 0)
2758 {
2759 cupsdCloseClient(con);
f7deaa1a 2760 return;
07725fee 2761 }
d09495fa 2762
2763 if (con->http.version == HTTP_1_1)
2764 con->http.data_encoding = HTTP_ENCODE_CHUNKED;
2765 }
ef416fc2 2766 else
2767 con->field_col = 0;
2768 }
2769 else if (*bufptr != '\r')
2770 con->field_col ++;
2771
2772 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2773 "cupsdWriteClient: %d bytes=%d, got_fields=%d",
2774 con->http.fd, bytes, con->got_fields);
2775
2776 if (bytes > 0 && !con->got_fields)
2777 {
2778 /*
2779 * Remaining text needs to go out...
2780 */
2781
2782 httpPrintf(HTTP(con), "%s", buf);
2783
2784 con->http.activity = time(NULL);
f7deaa1a 2785 return;
ef416fc2 2786 }
2787 else if (bytes == 0)
47879b8b 2788 {
ef416fc2 2789 con->http.activity = time(NULL);
47879b8b
MS		 2790 return;
2791 }
ef416fc2 2792 }
2793
4744bd90 2794 if (bytes > 0)
ef416fc2 2795 {
4744bd90 2796 if (httpWrite2(HTTP(con), buf, bytes) < 0)
2797 {
2798 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2799 "cupsdWriteClient: %d Write of %d bytes failed!",
2800 con->http.fd, bytes);
ef416fc2 2801
4744bd90 2802 cupsdCloseClient(con);
f7deaa1a 2803 return;
4744bd90 2804 }
ef416fc2 2805
01ce6322
MS		 2806 if (con->http.data_encoding == HTTP_ENCODE_CHUNKED)
2807 httpFlushWrite(HTTP(con));
ae71f5de 2808
4744bd90 2809 con->bytes += bytes;
ef416fc2 2810
4744bd90 2811 if (con->http.state == HTTP_WAITING)
2812 bytes = 0;
2813 }
ef416fc2 2814 }
2815
2816 if (bytes <= 0)
2817 {
2818 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d bytes < 0",
2819 con->http.fd);
2820
2821 cupsdLogRequest(con, HTTP_OK);
2822
2823 httpFlushWrite(HTTP(con));
2824
07725fee 2825 if (con->http.data_encoding == HTTP_ENCODE_CHUNKED && con->sent_header == 1)
ef416fc2 2826 {
07725fee 2827 if (httpWrite2(HTTP(con), "", 0) < 0)
ef416fc2 2828 {
2829 cupsdCloseClient(con);
f7deaa1a 2830 return;
ef416fc2 2831 }
2832 }
2833
2834 con->http.state = HTTP_WAITING;
2835
f7deaa1a 2836 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con);
ef416fc2 2837
2838 if (con->file >= 0)
2839 {
f7deaa1a 2840 cupsdRemoveSelect(con->file);
ef416fc2 2841
2842 if (con->pipe_pid)
2843 cupsdEndProcess(con->pipe_pid, 0);
2844
2845 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2846 "cupsdWriteClient: %d Closing data file %d.",
2847 con->http.fd, con->file);
2848
2849 close(con->file);
2850 con->file = -1;
2851 con->pipe_pid = 0;
2852 }
2853
2854 if (con->filename)
2855 {
2856 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2857 "cupsdWriteClient: %d Removing temp file %s",
2858 con->http.fd, con->filename);
2859 unlink(con->filename);
2860 cupsdClearString(&con->filename);
2861 }
2862
2abf387c 2863 if (con->request)
ef416fc2 2864 {
2865 ippDelete(con->request);
2866 con->request = NULL;
2867 }
2868
2abf387c 2869 if (con->response)
ef416fc2 2870 {
2871 ippDelete(con->response);
2872 con->response = NULL;
2873 }
2874
2875 cupsdClearString(&con->command);
2876 cupsdClearString(&con->options);
b86bc4cf 2877 cupsdClearString(&con->query_string);
ef416fc2 2878
2879 if (!con->http.keep_alive)
2880 {
2881 cupsdCloseClient(con);
f7deaa1a 2882 return;
ef416fc2 2883 }
2884 }
2885
2886 con->http.activity = time(NULL);
f7deaa1a 2887}
ef416fc2 2888
f7deaa1a 2889
e1d6a774 2890/*
2891 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
2892 */
2893
2894static int /* O - 1 if modified since */
2895check_if_modified(
2896 cupsd_client_t *con, /* I - Client connection */
2897 struct stat *filestats) /* I - File information */
2898{
2899 char *ptr; /* Pointer into field */
2900 time_t date; /* Time/date value */
2901 off_t size; /* Size/length value */
2902
2903
2904 size = 0;
2905 date = 0;
2906 ptr = con->http.fields[HTTP_FIELD_IF_MODIFIED_SINCE];
2907
2908 if (*ptr == '\0')
2909 return (1);
2910
2911 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2912 "check_if_modified: %d If-Modified-Since=\"%s\"",
2913 con->http.fd, ptr);
2914
2915 while (*ptr != '\0')
2916 {
2917 while (isspace(*ptr) || *ptr == ';')
2918 ptr ++;
2919
2920 if (strncasecmp(ptr, "length=", 7) == 0)
2921 {
2922 ptr += 7;
2923 size = strtoll(ptr, NULL, 10);
2924
2925 while (isdigit(*ptr))
2926 ptr ++;
2927 }
2928 else if (isalpha(*ptr))
2929 {
2930 date = httpGetDateTime(ptr);
2931 while (*ptr != '\0' && *ptr != ';')
2932 ptr ++;
2933 }
e53920b9 2934 else
2935 ptr ++;
e1d6a774 2936 }
2937
2938 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2939 "check_if_modified: %d sizes=" CUPS_LLFMT ","
2940 CUPS_LLFMT " dates=%d,%d",
2941 con->http.fd, CUPS_LLCAST size,
2942 CUPS_LLCAST filestats->st_size, (int)date,
2943 (int)filestats->st_mtime);
2944
2945 return ((size != filestats->st_size && size != 0) ||
2946 (date < filestats->st_mtime && date != 0) ||
2947 (size == 0 && date == 0));
2948}
2949
2950
3dfe78b3
MS		 2951/*
2952 * 'compare_clients()' - Compare two client connections.
2953 */
2954
2955static int /* O - Result of comparison */
2956compare_clients(cupsd_client_t *a, /* I - First client */
2957 cupsd_client_t *b, /* I - Second client */
2958 void *data) /* I - User data (not used) */
2959{
2960 (void)data;
2961
2962 if (a == b)
2963 return (0);
2964 else if (a < b)
2965 return (-1);
2966 else
2967 return (1);
2968}
2969
2970
80ca4592 2971#ifdef HAVE_SSL
e1d6a774 2972/*
2973 * 'encrypt_client()' - Enable encryption for the client...
2974 */
2975
2976static int /* O - 1 on success, 0 on error */
2977encrypt_client(cupsd_client_t *con) /* I - Client to encrypt */
2978{
80ca4592 2979# ifdef HAVE_LIBSSL
e1d6a774 2980 SSL_CTX *context; /* Context for encryption */
2981 SSL *conn; /* Connection for encryption */
411affcf 2982 BIO *bio; /* BIO data */
e1d6a774 2983 unsigned long error; /* Error code */
2984
2985
8ca02f3c 2986 /*
2987 * Verify that we have a certificate...
2988 */
2989
2990 if (access(ServerKey, 0) || access(ServerCertificate, 0))
2991 {
2992 /*
2993 * Nope, make a self-signed certificate...
2994 */
2995
b86bc4cf 2996 if (!make_certificate(con))
8ca02f3c 2997 return (0);
2998 }
2999
e1d6a774 3000 /*
3001 * Create the SSL context and accept the connection...
3002 */
3003
3004 context = SSL_CTX_new(SSLv23_server_method());
3005
3006 SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */
3007 SSL_CTX_use_PrivateKey_file(context, ServerKey, SSL_FILETYPE_PEM);
3008 SSL_CTX_use_certificate_file(context, ServerCertificate, SSL_FILETYPE_PEM);
3009
411affcf 3010 bio = BIO_new(_httpBIOMethods());
3011 BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)HTTP(con));
3012
e1d6a774 3013 conn = SSL_new(context);
411affcf 3014 SSL_set_bio(conn, bio, bio);
e1d6a774 3015
e1d6a774 3016 if (SSL_accept(conn) != 1)
3017 {
3018 cupsdLogMessage(CUPSD_LOG_ERROR,
3019 "encrypt_client: Unable to encrypt connection from %s!",
3020 con->http.hostname);
3021
3022 while ((error = ERR_get_error()) != 0)
3023 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s",
3024 ERR_error_string(error, NULL));
3025
3026 SSL_CTX_free(context);
3027 SSL_free(conn);
3028 return (0);
3029 }
3030
3031 cupsdLogMessage(CUPSD_LOG_DEBUG,
3032 "encrypt_client: %d Connection from %s now encrypted.",
3033 con->http.fd, con->http.hostname);
3034
3035 con->http.tls = conn;
3036 return (1);
f7deaa1a 3037
80ca4592 3038# elif defined(HAVE_GNUTLS)
e1d6a774 3039 http_tls_t *conn; /* TLS session object */
3040 int error; /* Error code */
3041 gnutls_certificate_server_credentials *credentials;
3042 /* TLS credentials */
3043
3044
3045 /*
3046 * Verify that we have a certificate...
3047 */
3048
3049 if (access(ServerKey, 0) || access(ServerCertificate, 0))
3050 {
3051 /*
3052 * Nope, make a self-signed certificate...
3053 */
3054
b86bc4cf 3055 if (!make_certificate(con))
8ca02f3c 3056 return (0);
e1d6a774 3057 }
3058
3059 /*
3060 * Create the SSL object and perform the SSL handshake...
3061 */
3062
89d46774 3063 conn = (http_tls_t *)malloc(sizeof(http_tls_t));
e1d6a774 3064
3065 if (conn == NULL)
3066 return (0);
3067
3068 credentials = (gnutls_certificate_server_credentials *)
3069 malloc(sizeof(gnutls_certificate_server_credentials));
3070 if (credentials == NULL)
3071 {
3072 cupsdLogMessage(CUPSD_LOG_ERROR,
3073 "encrypt_client: Unable to encrypt connection from %s!",
3074 con->http.hostname);
3075 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", strerror(errno));
3076
3077 free(conn);
3078 return (0);
3079 }
3080
3081 gnutls_certificate_allocate_credentials(credentials);
f7deaa1a 3082 gnutls_certificate_set_x509_key_file(*credentials, ServerCertificate,
e1d6a774 3083 ServerKey, GNUTLS_X509_FMT_PEM);
3084
3085 gnutls_init(&(conn->session), GNUTLS_SERVER);
3086 gnutls_set_default_priority(conn->session);
3087 gnutls_credentials_set(conn->session, GNUTLS_CRD_CERTIFICATE, *credentials);
411affcf 3088 gnutls_transport_set_ptr(conn->session, (gnutls_transport_ptr)HTTP(con));
3089 gnutls_transport_set_pull_function(conn->session, _httpReadGNUTLS);
3090 gnutls_transport_set_push_function(conn->session, _httpWriteGNUTLS);
e1d6a774 3091
3092 error = gnutls_handshake(conn->session);
3093
3094 if (error != GNUTLS_E_SUCCESS)
3095 {
3096 cupsdLogMessage(CUPSD_LOG_ERROR,
3097 "encrypt_client: Unable to encrypt connection from %s!",
3098 con->http.hostname);
3099 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s",
3100 gnutls_strerror(error));
3101
3102 gnutls_deinit(conn->session);
3103 gnutls_certificate_free_credentials(*credentials);
3104 free(conn);
3105 free(credentials);
3106 return (0);
3107 }
3108
3109 cupsdLogMessage(CUPSD_LOG_DEBUG,
3110 "encrypt_client: %d Connection from %s now encrypted.",
3111 con->http.fd, con->http.hostname);
3112
3113 conn->credentials = credentials;
3114 con->http.tls = conn;
3115 return (1);
3116
80ca4592 3117# elif defined(HAVE_CDSASSL)
89d46774 3118 OSStatus error; /* Error code */
3119 http_tls_t *conn; /* CDSA connection information */
e1d6a774 3120
3121
89d46774 3122 if ((conn = (http_tls_t *)malloc(sizeof(http_tls_t))) == NULL)
3123 return (0);
e1d6a774 3124
89d46774 3125 error = 0;
3126 conn->session = NULL;
b86bc4cf 3127 conn->certsArray = get_cdsa_certificate(con);
e1d6a774 3128
8ca02f3c 3129 if (!conn->certsArray)
3130 {
3131 /*
3132 * No keychain (yet), make a self-signed certificate...
3133 */
3134
b86bc4cf 3135 if (make_certificate(con))
3136 conn->certsArray = get_cdsa_certificate(con);
8ca02f3c 3137 }
3138
89d46774 3139 if (!conn->certsArray)
e1d6a774 3140 {
3141 cupsdLogMessage(CUPSD_LOG_ERROR,
411affcf 3142 "encrypt_client: Could not find signing key in keychain "
e1d6a774 3143 "\"%s\"", ServerCertificate);
3144 error = errSSLBadCert; /* errSSLBadConfiguration is a better choice, but not available on 10.2.x */
3145 }
3146
3147 if (!error)
89d46774 3148 error = SSLNewContext(true, &conn->session);
e1d6a774 3149
3150 if (!error)
89d46774 3151 error = SSLSetIOFuncs(conn->session, _httpReadCDSA, _httpWriteCDSA);
3152
3153 if (!error)
ed486911 3154 error = SSLSetProtocolVersionEnabled(conn->session, kSSLProtocol2, false);
e1d6a774 3155
3156 if (!error)
411affcf 3157 error = SSLSetConnection(conn->session, HTTP(con));
e1d6a774 3158
3159 if (!error)
89d46774 3160 error = SSLSetAllowsExpiredCerts(conn->session, true);
e1d6a774 3161
3162 if (!error)
89d46774 3163 error = SSLSetAllowsAnyRoot(conn->session, true);
ef416fc2 3164
89d46774 3165 if (!error)
3166 error = SSLSetCertificate(conn->session, conn->certsArray);
ef416fc2 3167
e1d6a774 3168 if (!error)
3169 {
3170 /*
3171 * Perform SSL/TLS handshake
3172 */
ef416fc2 3173
89d46774 3174 while ((error = SSLHandshake(conn->session)) == errSSLWouldBlock)
e1d6a774 3175 usleep(1000);
3176 }
ef416fc2 3177
e1d6a774 3178 if (error)
3179 {
3180 cupsdLogMessage(CUPSD_LOG_ERROR,
3181 "encrypt_client: Unable to encrypt connection from %s!",
3182 con->http.hostname);
ef416fc2 3183
ed486911 3184 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s (%d)",
3185 cssmErrorString(error), (int)error);
ef416fc2 3186
e1d6a774 3187 con->http.error = error;
3188 con->http.status = HTTP_ERROR;
ef416fc2 3189
89d46774 3190 if (conn->session)
3191 SSLDisposeContext(conn->session);
3192
3193 if (conn->certsArray)
3194 CFRelease(conn->certsArray);
3195
3196 free(conn);
ef416fc2 3197
e1d6a774 3198 return (0);
ef416fc2 3199 }
3200
e1d6a774 3201 cupsdLogMessage(CUPSD_LOG_DEBUG,
3202 "encrypt_client: %d Connection from %s now encrypted.",
3203 con->http.fd, con->http.hostname);
ef416fc2 3204
e1d6a774 3205 con->http.tls = conn;
3206 return (1);
3207
80ca4592 3208# endif /* HAVE_LIBSSL */
ef416fc2 3209}
80ca4592 3210#endif /* HAVE_SSL */
ef416fc2 3211
3212
3213#ifdef HAVE_CDSASSL
3214/*
b86bc4cf 3215 * 'get_cdsa_certificate()' - Get a SSL/TLS certificate from the System keychain.
ef416fc2 3216 */
3217
b86bc4cf 3218static CFArrayRef /* O - Array of certificates */
3219get_cdsa_certificate(cupsd_client_t *con) /* I - Client connection */
ef416fc2 3220{
3221 OSStatus err; /* Error info */
b86bc4cf 3222 SecKeychainRef keychain; /* Keychain reference */
3223 SecIdentitySearchRef search; /* Search reference */
ef416fc2 3224 SecIdentityRef identity; /* Identity */
b86bc4cf 3225 CFArrayRef certificates = NULL;
3226 /* Certificate array */
ef416fc2 3227
3228
b86bc4cf 3229 if ((err = SecKeychainOpen(ServerCertificate, &keychain)))
3230 {
3231 cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot open keychain \"%s\", %s",
3232 ServerCertificate, cssmErrorString(err));
3233 return (NULL);
3234 }
ef416fc2 3235
b86bc4cf 3236# if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY
3237 /*
3238 * Use a policy to search for valid certificates who's common name matches the
3239 * servername...
3240 */
3241
3242 SecPolicySearchRef policy_search; /* Policy search ref */
3243 SecPolicyRef policy; /* Policy ref */
3244 CSSM_DATA options; /* Policy options */
3245 CSSM_APPLE_TP_SSL_OPTIONS
3246 ssl_options; /* SSL Option for hostname */
3247
3248
1f0275e3
MS		 3249 if (SecPolicySearchCreate(CSSM_CERT_X_509v3, &CSSMOID_APPLE_TP_SSL,
3250 NULL, &policy_search))
ef416fc2 3251 {
b86bc4cf 3252 cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot create a policy search reference");
3253 CFRelease(keychain);
3254 return (NULL);
3255 }
ef416fc2 3256
1f0275e3 3257 if (SecPolicySearchCopyNext(policy_search, &policy))
b86bc4cf 3258 {
3259 cupsdLogMessage(CUPSD_LOG_ERROR,
3260 "Cannot find a policy to use for searching");
3261 CFRelease(keychain);
3262 CFRelease(policy_search);
3263 return (NULL);
3264 }
ef416fc2 3265
b86bc4cf 3266 memset(&ssl_options, 0, sizeof(ssl_options));
3267 ssl_options.Version = CSSM_APPLE_TP_SSL_OPTS_VERSION;
3268 ssl_options.ServerName = con->servername;
3269 ssl_options.ServerNameLen = strlen(con->servername);
ef416fc2 3270
b86bc4cf 3271 options.Data = (uint8 *)&ssl_options;
3272 options.Length = sizeof(ssl_options);
3273
1f0275e3 3274 if (SecPolicySetValue(policy, &options))
b86bc4cf 3275 {
3276 cupsdLogMessage(CUPSD_LOG_ERROR,
3277 "Cannot set policy value to use for searching");
3278 CFRelease(keychain);
3279 CFRelease(policy_search);
3280 return (NULL);
3281 }
3282
3283 err = SecIdentitySearchCreateWithPolicy(policy, NULL, CSSM_KEYUSE_SIGN,
3284 keychain, FALSE, &search);
3285# else
3286 /*
3287 * Assume there is exactly one SecIdentity in the keychain...
3288 */
3289
3290 err = SecIdentitySearchCreate(keychain, CSSM_KEYUSE_SIGN, &search);
3291# endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */
3292
3293 if (err)
3294 cupsdLogMessage(CUPSD_LOG_DEBUG,
3295 "Cannot create keychain search reference: %s",
3296 cssmErrorString(err));
3297 else
3298 {
3299 if ((err = SecIdentitySearchCopyNext(search, &identity)))
3300 {
3301 cupsdLogMessage(CUPSD_LOG_DEBUG,
ef416fc2 3302 "Cannot find signing key in keychain \"%s\", error %d",
3303 ServerCertificate, (int)err);
b86bc4cf 3304 }
3305 else
3306 {
3307 if (CFGetTypeID(identity) != SecIdentityGetTypeID())
3308 cupsdLogMessage(CUPSD_LOG_ERROR,
3309 "SecIdentitySearchCopyNext CFTypeID failure!");
ef416fc2 3310 else
3311 {
b86bc4cf 3312 if ((certificates = CFArrayCreate(NULL, (const void **)&identity,
3313 1, &kCFTypeArrayCallBacks)) == NULL)
3314 cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot create certificate array");
ef416fc2 3315 }
3316
b86bc4cf 3317 CFRelease(identity);
ef416fc2 3318 }
3319
b86bc4cf 3320 CFRelease(search);
ef416fc2 3321 }
3322
b86bc4cf 3323# if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY
3324 CFRelease(policy);
3325 CFRelease(policy_search);
3326# endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */
3327
3328 return (certificates);
ef416fc2 3329}
3330#endif /* HAVE_CDSASSL */
3331
3332
3333/*
3334 * 'get_file()' - Get a filename and state info.
3335 */
3336
3337static char * /* O - Real filename */
3338get_file(cupsd_client_t *con, /* I - Client connection */
3339 struct stat *filestats, /* O - File information */
3340 char *filename, /* IO - Filename buffer */
3341 int len) /* I - Buffer length */
3342{
3343 int status; /* Status of filesystem calls */
3344 char *ptr; /* Pointer info filename */
3345 int plen; /* Remaining length after pointer */
db1f069b 3346 char language[7]; /* Language subdirectory, if any */
ef416fc2 3347
3348
3349 /*
f7deaa1a 3350 * Figure out the real filename...
ef416fc2 3351 */
3352
db1f069b
MS		 3353 language[0] = '\0';
3354
ef416fc2 3355 if (!strncmp(con->uri, "/ppd/", 5))
3356 snprintf(filename, len, "%s%s", ServerRoot, con->uri);
f7deaa1a 3357 else if (!strncmp(con->uri, "/rss/", 5) && !strchr(con->uri + 5, '/'))
3358 snprintf(filename, len, "%s/rss/%s", CacheDir, con->uri + 5);
ef416fc2 3359 else if (!strncmp(con->uri, "/admin/conf/", 12))
3360 snprintf(filename, len, "%s%s", ServerRoot, con->uri + 11);
3361 else if (!strncmp(con->uri, "/admin/log/", 11))
3362 {
2e4ff8af 3363 if (!strncmp(con->uri + 11, "access_log", 10) && AccessLog[0] == '/')
ef416fc2 3364 strlcpy(filename, AccessLog, len);
2e4ff8af 3365 else if (!strncmp(con->uri + 11, "error_log", 9) && ErrorLog[0] == '/')
ef416fc2 3366 strlcpy(filename, ErrorLog, len);
2e4ff8af 3367 else if (!strncmp(con->uri + 11, "page_log", 8) && PageLog[0] == '/')
ef416fc2 3368 strlcpy(filename, PageLog, len);
3369 else
3370 return (NULL);
3371 }
d6ae789d 3372 else if (con->language)
db1f069b
MS		 3373 {
3374 snprintf(language, sizeof(language), "/%s", con->language->language);
3375 snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri);
3376 }
ef416fc2 3377 else
3378 snprintf(filename, len, "%s%s", DocumentRoot, con->uri);
3379
3380 if ((ptr = strchr(filename, '?')) != NULL)
3381 *ptr = '\0';
3382
3383 /*
3384 * Grab the status for this language; if there isn't a language-specific file
3385 * then fallback to the default one...
3386 */
3387
db1f069b 3388 if ((status = stat(filename, filestats)) != 0 && language[0] &&
d6ae789d 3389 strncmp(con->uri, "/ppd/", 5) &&
3390 strncmp(con->uri, "/admin/conf/", 12) &&
3391 strncmp(con->uri, "/admin/log/", 11))
ef416fc2 3392 {
3393 /*
d6ae789d 3394 * Drop the country code...
ef416fc2 3395 */
3396
db1f069b
MS		 3397 language[3] = '\0';
3398 snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri);
d6ae789d 3399
3400 if ((ptr = strchr(filename, '?')) != NULL)
3401 *ptr = '\0';
3402
3403 if ((status = stat(filename, filestats)) != 0)
ef416fc2 3404 {
d6ae789d 3405 /*
3406 * Drop the language prefix and try the root directory...
3407 */
3408
db1f069b 3409 language[0] = '\0';
ef416fc2 3410 snprintf(filename, len, "%s%s", DocumentRoot, con->uri);
3411
3412 if ((ptr = strchr(filename, '?')) != NULL)
3413 *ptr = '\0';
3414
3415 status = stat(filename, filestats);
3416 }
3417 }
3418
3419 /*
3420 * If we're found a directory, get the index.html file instead...
3421 */
3422
3423 if (!status && S_ISDIR(filestats->st_mode))
3424 {
db1f069b
MS		 3425 /*
3426 * Make sure the URI ends with a slash...
3427 */
ef416fc2 3428
db1f069b
MS		 3429 if (con->uri[strlen(con->uri) - 1] != '/')
3430 strlcat(con->uri, "/", sizeof(con->uri));
ef416fc2 3431
db1f069b
MS		 3432 /*
3433 * Find the directory index file, trying every language...
3434 */
ef416fc2 3435
db1f069b 3436 do
ef416fc2 3437 {
db1f069b
MS		 3438 if (status && language[0])
3439 {
3440 /*
3441 * Try a different language subset...
3442 */
3443
3444 if (language[3])
3445 language[0] = '\0'; /* Strip country code */
3446 else
3447 language[0] = '\0'; /* Strip language */
3448 }
3449
3450 /*
3451 * Look for the index file...
3452 */
3453
3454 snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri);
3455
3456 if ((ptr = strchr(filename, '?')) != NULL)
3457 *ptr = '\0';
3458
3459 ptr = filename + strlen(filename);
3460 plen = len - (ptr - filename);
3461
3462 strlcpy(ptr, "index.html", plen);
ef416fc2 3463 status = stat(filename, filestats);
db1f069b
MS		 3464
3465#ifdef HAVE_JAVA
3466 if (status)
3467 {
3468 strlcpy(ptr, "index.class", plen);
3469 status = stat(filename, filestats);
3470 }
ef416fc2 3471#endif /* HAVE_JAVA */
3472
3473#ifdef HAVE_PERL
db1f069b
MS		 3474 if (status)
3475 {
3476 strlcpy(ptr, "index.pl", plen);
3477 status = stat(filename, filestats);
3478 }
ef416fc2 3479#endif /* HAVE_PERL */
3480
3481#ifdef HAVE_PHP
db1f069b
MS		 3482 if (status)
3483 {
3484 strlcpy(ptr, "index.php", plen);
3485 status = stat(filename, filestats);
3486 }
ef416fc2 3487#endif /* HAVE_PHP */
3488
3489#ifdef HAVE_PYTHON
db1f069b
MS		 3490 if (status)
3491 {
3492 strlcpy(ptr, "index.pyc", plen);
3493 status = stat(filename, filestats);
3494 }
ef416fc2 3495
db1f069b
MS		 3496 if (status)
3497 {
3498 strlcpy(ptr, "index.py", plen);
3499 status = stat(filename, filestats);
3500 }
ef416fc2 3501#endif /* HAVE_PYTHON */
db1f069b
MS		 3502
3503 }
3504 while (status && language[0]);
ef416fc2 3505 }
3506
3507 cupsdLogMessage(CUPSD_LOG_DEBUG2, "get_file: %d filename=%s size=%d",
3508 con->http.fd, filename,
3509 status ? -1 : (int)filestats->st_size);
3510
3511 if (!status)
3512 con->http.data_remaining = (int)filestats->st_size;
3513
3514 if (status)
3515 return (NULL);
3516 else
3517 return (filename);
3518}
3519
3520
3521/*
3522 * 'install_conf_file()' - Install a configuration file.
3523 */
3524
3525static http_status_t /* O - Status */
3526install_conf_file(cupsd_client_t *con) /* I - Connection */
3527{
3528 cups_file_t *in, /* Input file */
3529 *out; /* Output file */
3530 char buffer[1024]; /* Copy buffer */
3531 int bytes; /* Number of bytes */
3532 char conffile[1024], /* Configuration filename */
3533 newfile[1024], /* New config filename */
3534 oldfile[1024]; /* Old config filename */
3535 struct stat confinfo; /* Config file info */
3536
3537
3538 /*
3539 * First construct the filenames...
3540 */
3541
3542 snprintf(conffile, sizeof(conffile), "%s%s", ServerRoot, con->uri + 11);
3543 snprintf(newfile, sizeof(newfile), "%s%s.N", ServerRoot, con->uri + 11);
3544 snprintf(oldfile, sizeof(oldfile), "%s%s.O", ServerRoot, con->uri + 11);
3545
3546 cupsdLogMessage(CUPSD_LOG_INFO, "Installing config file \"%s\"...", conffile);
3547
3548 /*
3549 * Get the owner, group, and permissions of the configuration file.
3550 * If it doesn't exist, assign it to the User and Group in the
3551 * cupsd.conf file with mode 0640 permissions.
3552 */
3553
3554 if (stat(conffile, &confinfo))
3555 {
3556 confinfo.st_uid = User;
3557 confinfo.st_gid = Group;
3558 confinfo.st_mode = ConfigFilePerm;
3559 }
3560
3561 /*
3562 * Open the request file and new config file...
3563 */
3564
3565 if ((in = cupsFileOpen(con->filename, "rb")) == NULL)
3566 {
3567 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open request file \"%s\" - %s",
3568 con->filename, strerror(errno));
3569 return (HTTP_SERVER_ERROR);
3570 }
3571
3572 if ((out = cupsFileOpen(newfile, "wb")) == NULL)
3573 {
3574 cupsFileClose(in);
3575 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open config file \"%s\" - %s",
3576 newfile, strerror(errno));
3577 return (HTTP_SERVER_ERROR);
3578 }
3579
3580 fchmod(cupsFileNumber(out), confinfo.st_mode);
3581 fchown(cupsFileNumber(out), confinfo.st_uid, confinfo.st_gid);
3582
3583 /*
3584 * Copy from the request to the new config file...
3585 */
3586
3587 while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0)
3588 if (cupsFileWrite(out, buffer, bytes) < bytes)
3589 {
3590 cupsdLogMessage(CUPSD_LOG_ERROR,
3591 "Unable to copy to config file \"%s\" - %s",
3592 newfile, strerror(errno));
3593
3594 cupsFileClose(in);
3595 cupsFileClose(out);
3596 unlink(newfile);
3597
3598 return (HTTP_SERVER_ERROR);
3599 }
3600
3601 /*
3602 * Close the files...
3603 */
3604
3605 cupsFileClose(in);
3606 if (cupsFileClose(out))
3607 {
3608 cupsdLogMessage(CUPSD_LOG_ERROR,
3609 "Error file closing config file \"%s\" - %s",
3610 newfile, strerror(errno));
3611
3612 unlink(newfile);
3613
3614 return (HTTP_SERVER_ERROR);
3615 }
3616
3617 /*
3618 * Remove the request file...
3619 */
3620
3621 unlink(con->filename);
3622 cupsdClearString(&con->filename);
3623
3624 /*
3625 * Unlink the old backup, rename the current config file to the backup
3626 * filename, and rename the new config file to the config file name...
3627 */
3628
3629 if (unlink(oldfile))
3630 if (errno != ENOENT)
3631 {
3632 cupsdLogMessage(CUPSD_LOG_ERROR,
3633 "Unable to remove backup config file \"%s\" - %s",
3634 oldfile, strerror(errno));
3635
3636 unlink(newfile);
3637
3638 return (HTTP_SERVER_ERROR);
3639 }
3640
3641 if (rename(conffile, oldfile))
3642 if (errno != ENOENT)
3643 {
3644 cupsdLogMessage(CUPSD_LOG_ERROR,
3645 "Unable to rename old config file \"%s\" - %s",
3646 conffile, strerror(errno));
3647
3648 unlink(newfile);
3649
3650 return (HTTP_SERVER_ERROR);
3651 }
3652
3653 if (rename(newfile, conffile))
3654 {
3655 cupsdLogMessage(CUPSD_LOG_ERROR,
3656 "Unable to rename new config file \"%s\" - %s",
3657 newfile, strerror(errno));
3658
3659 rename(oldfile, conffile);
3660 unlink(newfile);
3661
3662 return (HTTP_SERVER_ERROR);
3663 }
3664
3665 /*
3666 * If the cupsd.conf file was updated, set the NeedReload flag...
3667 */
3668
3669 if (!strcmp(con->uri, "/admin/conf/cupsd.conf"))
3670 NeedReload = RELOAD_CUPSD;
3671 else
3672 NeedReload = RELOAD_ALL;
3673
3674 ReloadTime = time(NULL);
3675
3676 /*
3677 * Return that the file was created successfully...
3678 */
3679
3680 return (HTTP_CREATED);
3681}
3682
3683
e1d6a774 3684/*
3685 * 'is_cgi()' - Is the resource a CGI script/program?
3686 */
3687
3688static int /* O - 1 = CGI, 0 = file */
3689is_cgi(cupsd_client_t *con, /* I - Client connection */
3690 const char *filename, /* I - Real filename */
3691 struct stat *filestats, /* I - File information */
3692 mime_type_t *type) /* I - MIME type */
3693{
3694 const char *options; /* Options on URL */
3695
3696
3697 cupsdLogMessage(CUPSD_LOG_DEBUG2,
75bd9771 3698 "is_cgi(con=%p, filename=\"%s\", filestats=%p, type=%s/%s)",
e1d6a774 3699 con, filename, filestats, type ? type->super : "unknown",
3700 type ? type->type : "unknown");
3701
3702 /*
3703 * Get the options, if any...
3704 */
3705
3706 if ((options = strchr(con->uri, '?')) != NULL)
a0f6818e
MS		 3707 {
3708 options ++;
3709 cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", options);
3710 }
b86bc4cf 3711
e1d6a774 3712 /*
3713 * Check for known types...
3714 */
3715
3716 if (!type || strcasecmp(type->super, "application"))
3717 {
3718 cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0...");
3719 return (0);
3720 }
3721
3722 if (!strcasecmp(type->type, "x-httpd-cgi") &&
3723 (filestats->st_mode & 0111))
3724 {
3725 /*
3726 * "application/x-httpd-cgi" is a CGI script.
3727 */
3728
3729 cupsdSetString(&con->command, filename);
3730
a0f6818e
MS		 3731 if (options)
3732 cupsdSetStringf(&con->options, " %s", options);
e1d6a774 3733
3734 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3735 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3736 con->command, con->options);
3737
3738 return (1);
3739 }
3740#ifdef HAVE_JAVA
3741 else if (!strcasecmp(type->type, "x-httpd-java"))
3742 {
3743 /*
3744 * "application/x-httpd-java" is a Java servlet.
3745 */
3746
3747 cupsdSetString(&con->command, CUPS_JAVA);
3748
3749 if (options)
b94498cf 3750 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3751 else
b94498cf 3752 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3753
3754 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3755 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3756 con->command, con->options);
3757
3758 return (1);
3759 }
3760#endif /* HAVE_JAVA */
3761#ifdef HAVE_PERL
3762 else if (!strcasecmp(type->type, "x-httpd-perl"))
3763 {
3764 /*
3765 * "application/x-httpd-perl" is a Perl page.
3766 */
3767
3768 cupsdSetString(&con->command, CUPS_PERL);
3769
3770 if (options)
b94498cf 3771 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3772 else
b94498cf 3773 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3774
3775 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3776 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3777 con->command, con->options);
3778
3779 return (1);
3780 }
3781#endif /* HAVE_PERL */
3782#ifdef HAVE_PHP
3783 else if (!strcasecmp(type->type, "x-httpd-php"))
3784 {
3785 /*
3786 * "application/x-httpd-php" is a PHP page.
3787 */
3788
3789 cupsdSetString(&con->command, CUPS_PHP);
3790
3791 if (options)
b94498cf 3792 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3793 else
b94498cf 3794 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3795
3796 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3797 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3798 con->command, con->options);
3799
3800 return (1);
3801 }
3802#endif /* HAVE_PHP */
3803#ifdef HAVE_PYTHON
3804 else if (!strcasecmp(type->type, "x-httpd-python"))
3805 {
3806 /*
3807 * "application/x-httpd-python" is a Python page.
3808 */
3809
3810 cupsdSetString(&con->command, CUPS_PYTHON);
3811
3812 if (options)
b94498cf 3813 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3814 else
b94498cf 3815 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3816
3817 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3818 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3819 con->command, con->options);
3820
3821 return (1);
3822 }
3823#endif /* HAVE_PYTHON */
3824
3825 cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0...");
3826
3827 return (0);
3828}
3829
3830
ef416fc2 3831/*
3832 * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. "..").
3833 */
3834
3835static int /* O - 0 if relative, 1 if absolute */
3836is_path_absolute(const char *path) /* I - Input path */
3837{
3838 /*
3839 * Check for a leading slash...
3840 */
3841
3842 if (path[0] != '/')
3843 return (0);
3844
3845 /*
3846 * Check for "/.." in the path...
3847 */
3848
3849 while ((path = strstr(path, "/..")) != NULL)
3850 {
3851 if (!path[3] || path[3] == '/')
3852 return (0);
3853
3854 path ++;
3855 }
3856
3857 /*
3858 * If we haven't found any relative paths, return 1 indicating an
3859 * absolute path...
3860 */
3861
3862 return (1);
3863}
3864
3865
8ca02f3c 3866#ifdef HAVE_SSL
4744bd90 3867/*
3868 * 'make_certificate()' - Make a self-signed SSL/TLS certificate.
3869 */
3870
8ca02f3c 3871static int /* O - 1 on success, 0 on failure */
b86bc4cf 3872make_certificate(cupsd_client_t *con) /* I - Client connection */
4744bd90 3873{
8ca02f3c 3874#if defined(HAVE_LIBSSL) && defined(HAVE_WAITPID)
d09495fa 3875 int pid, /* Process ID of command */
3876 status; /* Status of command */
3877 char command[1024], /* Command */
f7deaa1a 3878 *argv[12], /* Command-line arguments */
d09495fa 3879 *envp[MAX_ENV + 1], /* Environment variables */
3880 home[1024], /* HOME environment variable */
3881 infofile[1024], /* Type-in information for cert */
3882 seedfile[1024]; /* Random number seed file */
3883 int envc, /* Number of environment variables */
3884 bytes; /* Bytes written */
3885 cups_file_t *fp; /* Seed/info file */
3886 int infofd; /* Info file descriptor */
8ca02f3c 3887
3888
3889 /*
d09495fa 3890 * Run the "openssl" command to seed the random number generator and
3891 * generate a self-signed certificate that is good for 10 years:
3892 *
3893 * openssl rand -rand seedfile 1
8ca02f3c 3894 *
3895 * openssl req -new -x509 -keyout ServerKey \
3896 * -out ServerCertificate -days 3650 -nodes
d09495fa 3897 *
3898 * The seeding step is crucial in ensuring that the openssl command
3899 * does not block on systems without sufficient entropy...
8ca02f3c 3900 */
3901
3902 if (!cupsFileFind("openssl", getenv("PATH"), 1, command, sizeof(command)))
3903 {
3904 cupsdLogMessage(CUPSD_LOG_ERROR,
3905 "No SSL certificate and openssl command not found!");
3906 return (0);
3907 }
3908
d09495fa 3909 if (access("/dev/urandom", 0))
3910 {
3911 /*
3912 * If the system doesn't provide /dev/urandom, then any random source
3913 * will probably be blocking-style, so generate some random data to
3914 * use as a seed for the certificate. Note that we have already
3915 * seeded the random number generator in cupsdInitCerts()...
3916 */
3917
3918 cupsdLogMessage(CUPSD_LOG_INFO,
3919 "Seeding the random number generator...");
3920
3921 snprintf(home, sizeof(home), "HOME=%s", TempDir);
3922
3923 /*
3924 * Write the seed file...
3925 */
3926
3927 if ((fp = cupsTempFile2(seedfile, sizeof(seedfile))) == NULL)
3928 {
3929 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create seed file %s - %s",
3930 seedfile, strerror(errno));
3931 return (0);
3932 }
3933
3934 for (bytes = 0; bytes < 262144; bytes ++)
3935 cupsFilePutChar(fp, random());
3936
3937 cupsFileClose(fp);
3938
3939 /*
3940 * Run the openssl command to seed its random number generator...
3941 */
3942
3943 argv[0] = "openssl";
3944 argv[1] = "rand";
3945 argv[2] = "-rand";
3946 argv[3] = seedfile;
3947 argv[4] = "1";
3948 argv[5] = NULL;
3949
3950 envc = cupsdLoadEnv(envp, MAX_ENV);
3951 envp[envc++] = home;
3952 envp[envc] = NULL;
3953
a4924f6c
MS		 3954 if (!cupsdStartProcess(command, argv, envp, -1, -1, -1, -1, -1, 1, NULL,
3955 &pid))
d09495fa 3956 {
3957 unlink(seedfile);
3958 return (0);
3959 }
3960
3961 while (waitpid(pid, &status, 0) < 0)
3962 if (errno != EINTR)
3963 {
3964 status = 1;
3965 break;
3966 }
3967
3968 cupsdFinishProcess(pid, command, sizeof(command));
3969
3970 /*
3971 * Remove the seed file, as it is no longer needed...
3972 */
3973
3974 unlink(seedfile);
3975
3976 if (status)
3977 {
3978 if (WIFEXITED(status))
3979 cupsdLogMessage(CUPSD_LOG_ERROR,
3980 "Unable to seed random number generator - "
3981 "the openssl command stopped with status %d!",
3982 WEXITSTATUS(status));
3983 else
3984 cupsdLogMessage(CUPSD_LOG_ERROR,
3985 "Unable to seed random number generator - "
3986 "the openssl command crashed on signal %d!",
3987 WTERMSIG(status));
3988
3989 return (0);
3990 }
3991 }
3992
3993 /*
3994 * Create a file with the certificate information fields...
3995 *
3996 * Note: This assumes that the default questions are asked by the openssl
3997 * command...
3998 */
3999
4000 if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL)
4001 {
4002 cupsdLogMessage(CUPSD_LOG_ERROR,
4003 "Unable to create certificate information file %s - %s",
4004 infofile, strerror(errno));
4005 return (0);
4006 }
4007
4008 cupsFilePrintf(fp, ".\n.\n.\n%s\n.\n%s\n%s\n",
4009 ServerName, ServerName, ServerAdmin);
4010 cupsFileClose(fp);
4011
8ca02f3c 4012 cupsdLogMessage(CUPSD_LOG_INFO,
4013 "Generating SSL server key and certificate...");
4014
4015 argv[0] = "openssl";
4016 argv[1] = "req";
4017 argv[2] = "-new";
4018 argv[3] = "-x509";
4019 argv[4] = "-keyout";
4020 argv[5] = ServerKey;
4021 argv[6] = "-out";
4022 argv[7] = ServerCertificate;
4023 argv[8] = "-days";
4024 argv[9] = "3650";
4025 argv[10] = "-nodes";
4026 argv[11] = NULL;
4027
4028 cupsdLoadEnv(envp, MAX_ENV);
4029
d09495fa 4030 infofd = open(infofile, O_RDONLY);
4031
a4924f6c
MS		 4032 if (!cupsdStartProcess(command, argv, envp, infofd, -1, -1, -1, -1, 1, NULL,
4033 &pid))
d09495fa 4034 {
4035 close(infofd);
4036 unlink(infofile);
8ca02f3c 4037 return (0);
d09495fa 4038 }
4039
4040 close(infofd);
4041 unlink(infofile);
8ca02f3c 4042
4043 while (waitpid(pid, &status, 0) < 0)
4044 if (errno != EINTR)
4045 {
4046 status = 1;
4047 break;
4048 }
4049
4050 cupsdFinishProcess(pid, command, sizeof(command));
4051
4052 if (status)
4053 {
4054 if (WIFEXITED(status))
4055 cupsdLogMessage(CUPSD_LOG_ERROR,
4056 "Unable to create SSL server key and certificate - "
4057 "the openssl command stopped with status %d!",
4058 WEXITSTATUS(status));
4059 else
4060 cupsdLogMessage(CUPSD_LOG_ERROR,
4061 "Unable to create SSL server key and certificate - "
4062 "the openssl command crashed on signal %d!",
4063 WTERMSIG(status));
4064 }
4065 else
4066 {
4067 cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...",
4068 ServerKey);
4069 cupsdLogMessage(CUPSD_LOG_INFO,
4070 "Created SSL server certificate file \"%s\"...",
4071 ServerCertificate);
4072 }
4073
4074 return (!status);
4075
4076#elif defined(HAVE_GNUTLS)
4744bd90 4077 gnutls_x509_crt crt; /* Self-signed certificate */
4078 gnutls_x509_privkey key; /* Encryption key */
4079 cups_lang_t *language; /* Default language info */
4080 cups_file_t *fp; /* Key/cert file */
4081 unsigned char buffer[8192]; /* Buffer for x509 data */
4082 size_t bytes; /* Number of bytes of data */
4083 unsigned char serial[4]; /* Serial number buffer */
4084 time_t curtime; /* Current time */
4085 int result; /* Result of GNU TLS calls */
4086
4087
4088 /*
4089 * Create the encryption key...
4090 */
4091
8ca02f3c 4092 cupsdLogMessage(CUPSD_LOG_INFO, "Generating SSL server key...");
4744bd90 4093
4094 gnutls_x509_privkey_init(&key);
4095 gnutls_x509_privkey_generate(key, GNUTLS_PK_RSA, 2048, 0);
4096
4097 /*
4098 * Save it...
4099 */
4100
4101 bytes = sizeof(buffer);
4102
4103 if ((result = gnutls_x509_privkey_export(key, GNUTLS_X509_FMT_PEM,
4104 buffer, &bytes)) < 0)
4105 {
8ca02f3c 4106 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to export SSL server key - %s",
4744bd90 4107 gnutls_strerror(result));
4108 gnutls_x509_privkey_deinit(key);
8ca02f3c 4109 return (0);
4744bd90 4110 }
4111 else if ((fp = cupsFileOpen(ServerKey, "w")) != NULL)
4112 {
4113 cupsFileWrite(fp, (char *)buffer, bytes);
4114 cupsFileClose(fp);
4115
8ca02f3c 4116 cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...",
4744bd90 4117 ServerKey);
4118 }
4119 else
4120 {
4121 cupsdLogMessage(CUPSD_LOG_ERROR,
8ca02f3c 4122 "Unable to create SSL server key file \"%s\" - %s",
4744bd90 4123 ServerKey, strerror(errno));
4124 gnutls_x509_privkey_deinit(key);
8ca02f3c 4125 return (0);
4744bd90 4126 }
4127
4128 /*
4129 * Create the self-signed certificate...
4130 */
4131
8ca02f3c 4132 cupsdLogMessage(CUPSD_LOG_INFO, "Generating self-signed SSL certificate...");
4744bd90 4133
4134 language = cupsLangDefault();
4135 curtime = time(NULL);
4136 serial[0] = curtime >> 24;
4137 serial[1] = curtime >> 16;
4138 serial[2] = curtime >> 8;
4139 serial[3] = curtime;
4140
4141 gnutls_x509_crt_init(&crt);
4142 if (strlen(language->language) == 5)
4143 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0,
4144 language->language + 3, 2);
4145 else
4146 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0,
4147 "US", 2);
4148 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COMMON_NAME, 0,
4149 ServerName, strlen(ServerName));
4150 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATION_NAME, 0,
4151 ServerName, strlen(ServerName));
4152 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME,
4153 0, "Unknown", 7);
4154 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME, 0,
4155 "Unknown", 7);
4156 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_LOCALITY_NAME, 0,
4157 "Unknown", 7);
4158 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_PKCS9_EMAIL, 0,
4159 ServerAdmin, strlen(ServerAdmin));
4160 gnutls_x509_crt_set_key(crt, key);
4161 gnutls_x509_crt_set_serial(crt, serial, sizeof(serial));
4162 gnutls_x509_crt_set_activation_time(crt, curtime);
4163 gnutls_x509_crt_set_expiration_time(crt, curtime + 10 * 365 * 86400);
4164 gnutls_x509_crt_set_ca_status(crt, 0);
4165 gnutls_x509_crt_set_subject_alternative_name(crt, GNUTLS_SAN_DNSNAME,
4166 ServerName);
4167 gnutls_x509_crt_set_key_purpose_oid(crt, GNUTLS_KP_TLS_WWW_SERVER, 0);
4168 gnutls_x509_crt_set_key_usage(crt, GNUTLS_KEY_KEY_ENCIPHERMENT);
4169 gnutls_x509_crt_set_version(crt, 3);
4170
4171 bytes = sizeof(buffer);
4172 if (gnutls_x509_crt_get_key_id(crt, 0, buffer, &bytes) >= 0)
4173 gnutls_x509_crt_set_subject_key_id(crt, buffer, bytes);
4174
4175 gnutls_x509_crt_sign(crt, crt, key);
4176
4177 /*
4178 * Save it...
4179 */
4180
4181 bytes = sizeof(buffer);
4182 if ((result = gnutls_x509_crt_export(crt, GNUTLS_X509_FMT_PEM,
4183 buffer, &bytes)) < 0)
4184 cupsdLogMessage(CUPSD_LOG_ERROR,
8ca02f3c 4185 "Unable to export SSL server certificate - %s",
4744bd90 4186 gnutls_strerror(result));
4187 else if ((fp = cupsFileOpen(ServerCertificate, "w")) != NULL)
4188 {
4189 cupsFileWrite(fp, (char *)buffer, bytes);
4190 cupsFileClose(fp);
4191
4192 cupsdLogMessage(CUPSD_LOG_INFO,
8ca02f3c 4193 "Created SSL server certificate file \"%s\"...",
4744bd90 4194 ServerCertificate);
4195 }
4196 else
4197 cupsdLogMessage(CUPSD_LOG_ERROR,
8ca02f3c 4198 "Unable to create SSL server certificate file \"%s\" - %s",
4744bd90 4199 ServerCertificate, strerror(errno));
4200
4201 /*
4202 * Cleanup...
4203 */
4204
4205 gnutls_x509_crt_deinit(crt);
4206 gnutls_x509_privkey_deinit(key);
8ca02f3c 4207
4208 return (1);
4209
4210#elif defined(HAVE_CDSASSL) && defined(HAVE_WAITPID)
b86bc4cf 4211 int pid, /* Process ID of command */
4212 status; /* Status of command */
4213 char command[1024], /* Command */
4214 *argv[4], /* Command-line arguments */
4215 *envp[MAX_ENV + 1], /* Environment variables */
4216 keychain[1024], /* Keychain argument */
4217 infofile[1024]; /* Type-in information for cert */
4218 cups_file_t *fp; /* Seed/info file */
4219 int infofd; /* Info file descriptor */
8ca02f3c 4220
4221
4222 /*
b86bc4cf 4223 * Run the "certtool" command to generate a self-signed certificate...
8ca02f3c 4224 */
4225
4226 if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command)))
4227 {
4228 cupsdLogMessage(CUPSD_LOG_ERROR,
4229 "No SSL certificate and certtool command not found!");
4230 return (0);
4231 }
4232
b86bc4cf 4233 /*
4234 * Create a file with the certificate information fields...
4235 *
4236 * Note: This assumes that the default questions are asked by the certtool
4237 * command...
4238 */
4239
4240 if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL)
4241 {
4242 cupsdLogMessage(CUPSD_LOG_ERROR,
4243 "Unable to create certificate information file %s - %s",
4244 infofile, strerror(errno));
4245 return (0);
4246 }
4247
4248 cupsFilePrintf(fp, "%s\nr\n\ny\nb\ns\ny\n%s\n\n\n\n\n%s\ny\n",
4249 con->servername, con->servername, ServerAdmin);
4250 cupsFileClose(fp);
4251
8ca02f3c 4252 cupsdLogMessage(CUPSD_LOG_INFO,
4253 "Generating SSL server key and certificate...");
4254
4255 snprintf(keychain, sizeof(keychain), "k=%s", ServerCertificate);
4256
4257 argv[0] = "certtool";
4258 argv[1] = "c";
b86bc4cf 4259 argv[2] = keychain;
4260 argv[3] = NULL;
8ca02f3c 4261
4262 cupsdLoadEnv(envp, MAX_ENV);
4263
b86bc4cf 4264 infofd = open(infofile, O_RDONLY);
4265
a4924f6c
MS		 4266 if (!cupsdStartProcess(command, argv, envp, infofd, -1, -1, -1, -1, 1, NULL,
4267 &pid))
b86bc4cf 4268 {
4269 close(infofd);
4270 unlink(infofile);
8ca02f3c 4271 return (0);
b86bc4cf 4272 }
4273
4274 close(infofd);
4275 unlink(infofile);
8ca02f3c 4276
4277 while (waitpid(pid, &status, 0) < 0)
4278 if (errno != EINTR)
4279 {
4280 status = 1;
4281 break;
4282 }
4283
4284 cupsdFinishProcess(pid, command, sizeof(command));
4285
4286 if (status)
4287 {
4288 if (WIFEXITED(status))
4289 cupsdLogMessage(CUPSD_LOG_ERROR,
4290 "Unable to create SSL server key and certificate - "
4291 "the certtool command stopped with status %d!",
4292 WEXITSTATUS(status));
4293 else
4294 cupsdLogMessage(CUPSD_LOG_ERROR,
4295 "Unable to create SSL server key and certificate - "
4296 "the certtool command crashed on signal %d!",
4297 WTERMSIG(status));
4298 }
4299 else
4300 {
4301 cupsdLogMessage(CUPSD_LOG_INFO,
4302 "Created SSL server certificate file \"%s\"...",
4303 ServerCertificate);
4304 }
4305
4306 return (!status);
4307
4308#else
4309 return (0);
4310#endif /* HAVE_LIBSSL && HAVE_WAITPID */
4744bd90 4311}
8ca02f3c 4312#endif /* HAVE_SSL */
4744bd90 4313
4314
ef416fc2 4315/*
4316 * 'pipe_command()' - Pipe the output of a command to the remote client.
4317 */
4318
4319static int /* O - Process ID */
4320pipe_command(cupsd_client_t *con, /* I - Client connection */
4321 int infile, /* I - Standard input for command */
4322 int *outfile, /* O - Standard output for command */
4323 char *command, /* I - Command to run */
4324 char *options, /* I - Options for command */
4325 int root) /* I - Run as root? */
4326{
4327 int i; /* Looping var */
4328 int pid; /* Process ID */
b423cd4c 4329 char *commptr, /* Command string pointer */
4330 commch; /* Command string character */
ef416fc2 4331 char *uriptr; /* URI string pointer */
4332 int fds[2]; /* Pipe FDs */
4333 int argc; /* Number of arguments */
4334 int envc; /* Number of environment variables */
4335 char argbuf[10240], /* Argument buffer */
4336 *argv[100], /* Argument strings */
b94498cf 4337 *envp[MAX_ENV + 20]; /* Environment variables */
5bd77a73 4338 char auth_type[256], /* CUPSD_AUTH_TYPE environment variable */
b94498cf 4339 content_length[1024], /* CONTENT_LENGTH environment variable */
ef416fc2 4340 content_type[1024], /* CONTENT_TYPE environment variable */
4341 http_cookie[32768], /* HTTP_COOKIE environment variable */
f7deaa1a 4342 http_referer[1024], /* HTTP_REFERER environment variable */
ef416fc2 4343 http_user_agent[1024], /* HTTP_USER_AGENT environment variable */
4344 lang[1024], /* LANG environment variable */
b423cd4c 4345 path_info[1024], /* PATH_INFO environment variable */
ef416fc2 4346 remote_addr[1024], /* REMOTE_ADDR environment variable */
4347 remote_host[1024], /* REMOTE_HOST environment variable */
4348 remote_user[1024], /* REMOTE_USER environment variable */
b94498cf 4349 script_filename[1024], /* SCRIPT_FILENAME environment variable */
ef416fc2 4350 script_name[1024], /* SCRIPT_NAME environment variable */
4351 server_name[1024], /* SERVER_NAME environment variable */
4352 server_port[1024]; /* SERVER_PORT environment variable */
7dfedb92 4353 ipp_attribute_t *attr; /* attributes-natural-language attribute */
5bd77a73
MS		 4354#ifdef HAVE_GSSAPI
4355 krb5_ccache ccache = NULL; /* Kerberos credentials */
4356 char krb5ccname[1024]; /* KRB5CCNAME environment variable */
4357#endif /* HAVE_GSSAPI */
ef416fc2 4358
4359
4360 /*
4361 * Parse a copy of the options string, which is of the form:
4362 *
b423cd4c 4363 * argument+argument+argument
4364 * ?argument+argument+argument
4365 * param=value&param=value
4366 * ?param=value&param=value
4367 * /name?argument+argument+argument
4368 * /name?param=value&param=value
ef416fc2 4369 *
4370 * If the string contains an "=" character after the initial name,
4371 * then we treat it as a HTTP GET form request and make a copy of
4372 * the remaining string for the environment variable.
4373 *
4374 * The string is always parsed out as command-line arguments, to
4375 * be consistent with Apache...
4376 */
4377
4378 cupsdLogMessage(CUPSD_LOG_DEBUG2,
4379 "pipe_command: command=\"%s\", options=\"%s\"",
f301802f 4380 command, options ? options : "(null)");
ef416fc2 4381
b86bc4cf 4382 argv[0] = command;
ef416fc2 4383
b423cd4c 4384 if (options)
4385 strlcpy(argbuf, options, sizeof(argbuf));
4386 else
4387 argbuf[0] = '\0';
4388
4389 if (argbuf[0] == '/')
ef416fc2 4390 {
4391 /*
b423cd4c 4392 * Found some trailing path information, set PATH_INFO...
ef416fc2 4393 */
4394
b423cd4c 4395 if ((commptr = strchr(argbuf, '?')) == NULL)
4396 commptr = argbuf + strlen(argbuf);
ef416fc2 4397
b423cd4c 4398 commch = *commptr;
4399 *commptr = '\0';
4400 snprintf(path_info, sizeof(path_info), "PATH_INFO=%s", argbuf);
4401 *commptr = commch;
4402 }
4403 else
4404 {
4405 commptr = argbuf;
4406 path_info[0] = '\0';
b94498cf 4407
4408 if (*commptr == ' ')
4409 commptr ++;
b423cd4c 4410 }
ef416fc2 4411
b86bc4cf 4412 if (*commptr == '?' && con->operation == HTTP_GET && !con->query_string)
b423cd4c 4413 {
4414 commptr ++;
b86bc4cf 4415 cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", commptr);
b423cd4c 4416 }
ef416fc2 4417
b423cd4c 4418 argc = 1;
ef416fc2 4419
b423cd4c 4420 if (*commptr)
4421 {
4422 argv[argc ++] = commptr;
ef416fc2 4423
b423cd4c 4424 for (; *commptr && argc < 99; commptr ++)
4425 {
ef416fc2 4426 /*
b423cd4c 4427 * Break arguments whenever we see a + or space...
ef416fc2 4428 */
4429
b423cd4c 4430 if (*commptr == ' ' || *commptr == '+')
4431 {
4432 while (*commptr == ' ' || *commptr == '+')
4433 *commptr++ = '\0';
ef416fc2 4434
b423cd4c 4435 /*
4436 * If we don't have a blank string, save it as another argument...
4437 */
ef416fc2 4438
b423cd4c 4439 if (*commptr)
4440 {
4441 argv[argc] = commptr;
4442 argc ++;
4443 }
4444 else
4445 break;
4446 }
4447 else if (*commptr == '%' && isxdigit(commptr[1] & 255) &&
4448 isxdigit(commptr[2] & 255))
4449 {
4450 /*
4451 * Convert the %xx notation to the individual character.
4452 */
ef416fc2 4453
b423cd4c 4454 if (commptr[1] >= '0' && commptr[1] <= '9')
4455 *commptr = (commptr[1] - '0') << 4;
4456 else
4457 *commptr = (tolower(commptr[1]) - 'a' + 10) << 4;
ef416fc2 4458
b423cd4c 4459 if (commptr[2] >= '0' && commptr[2] <= '9')
4460 *commptr |= commptr[2] - '0';
4461 else
4462 *commptr |= tolower(commptr[2]) - 'a' + 10;
ef416fc2 4463
b423cd4c 4464 _cups_strcpy(commptr + 1, commptr + 3);
ef416fc2 4465
b423cd4c 4466 /*
4467 * Check for a %00 and break if that is the case...
4468 */
ef416fc2 4469
b423cd4c 4470 if (!*commptr)
4471 break;
4472 }
ef416fc2 4473 }
4474 }
4475
4476 argv[argc] = NULL;
4477
ef416fc2 4478 /*
4479 * Setup the environment variables as needed...
4480 */
4481
b94498cf 4482 if (con->username[0])
4483 {
5bd77a73 4484 snprintf(auth_type, sizeof(auth_type), "CUPSD_AUTH_TYPE=%s",
b94498cf 4485 httpGetField(HTTP(con), HTTP_FIELD_AUTHORIZATION));
4486
4487 if ((uriptr = strchr(auth_type + 10, ' ')) != NULL)
4488 *uriptr = '\0';
4489 }
4490 else
4491 auth_type[0] = '\0';
4492
7dfedb92
MS		 4493 if (con->request &&
4494 (attr = ippFindAttribute(con->request, "attributes-natural-language",
4495 IPP_TAG_LANGUAGE)) != NULL)
4496 {
4497 switch (strlen(attr->values[0].string.text))
4498 {
4499 default :
4500 /*
4501 * This is an unknown or badly formatted language code; use
4502 * the POSIX locale...
4503 */
4504
4505 strcpy(lang, "LANG=C");
4506 break;
4507
4508 case 2 :
4509 /*
4510 * Just the language code (ll)...
4511 */
4512
4513 snprintf(lang, sizeof(lang), "LANG=%s.UTF8",
4514 attr->values[0].string.text);
4515 break;
4516
4517 case 5 :
4518 /*
4519 * Language and country code (ll-cc)...
4520 */
4521
4522 snprintf(lang, sizeof(lang), "LANG=%c%c_%c%c.UTF8",
4523 attr->values[0].string.text[0],
4524 attr->values[0].string.text[1],
4525 toupper(attr->values[0].string.text[3] & 255),
4526 toupper(attr->values[0].string.text[4] & 255));
4527 break;
4528 }
4529 }
4530 else if (con->language)
4531 snprintf(lang, sizeof(lang), "LANG=%s.UTF8", con->language->language);
ef416fc2 4532 else
4533 strcpy(lang, "LANG=C");
4534
4535 strcpy(remote_addr, "REMOTE_ADDR=");
4536 httpAddrString(con->http.hostaddr, remote_addr + 12,
4537 sizeof(remote_addr) - 12);
4538
4539 snprintf(remote_host, sizeof(remote_host), "REMOTE_HOST=%s",
4540 con->http.hostname);
4541
4542 snprintf(script_name, sizeof(script_name), "SCRIPT_NAME=%s", con->uri);
4543 if ((uriptr = strchr(script_name, '?')) != NULL)
4544 *uriptr = '\0';
4545
b94498cf 4546 snprintf(script_filename, sizeof(script_filename), "SCRIPT_FILENAME=%s%s",
4547 DocumentRoot, script_name + 12);
4548
ef416fc2 4549 sprintf(server_port, "SERVER_PORT=%d", con->serverport);
4550
4551 snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s",
4552 con->servername);
4553
4554 envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0])));
4555
b94498cf 4556 if (auth_type[0])
4557 envp[envc ++] = auth_type;
4558
ef416fc2 4559 envp[envc ++] = lang;
4560 envp[envc ++] = "REDIRECT_STATUS=1";
b94498cf 4561 envp[envc ++] = "GATEWAY_INTERFACE=CGI/1.1";
ef416fc2 4562 envp[envc ++] = server_name;
4563 envp[envc ++] = server_port;
4564 envp[envc ++] = remote_addr;
4565 envp[envc ++] = remote_host;
4566 envp[envc ++] = script_name;
b94498cf 4567 envp[envc ++] = script_filename;
ef416fc2 4568
b423cd4c 4569 if (path_info[0])
4570 envp[envc ++] = path_info;
4571
ef416fc2 4572 if (con->username[0])
4573 {
4574 snprintf(remote_user, sizeof(remote_user), "REMOTE_USER=%s", con->username);
4575
4576 envp[envc ++] = remote_user;
5bd77a73
MS		 4577
4578 /*
4579 * Save Kerberos credentials, if any...
4580 */
4581
4582#ifdef HAVE_GSSAPI
4583 if (con->gss_have_creds)
4584 {
4585# if !defined(HAVE_KRB5_CC_NEW_UNIQUE) && !defined(HAVE_HEIMDAL)
4586 cupsdLogMessage(CUPSD_LOG_INFO,
4587 "Sorry, your version of Kerberos does not support "
4588 "delegated credentials!");
4589
4590# else
4591 krb5_error_code error; /* Kerberos error code */
4592 OM_uint32 major_status, /* Major status code */
4593 minor_status; /* Minor status code */
4594 krb5_principal principal; /* Kerberos principal */
4595
4596
4597# ifdef __APPLE__
4598 /*
4599 * If the weak-linked GSSAPI/Kerberos library is not present, don't try
4600 * to use it...
4601 */
4602
4603 if (krb5_init_context != NULL)
4604 {
4605# endif /* __APPLE__ */
4606
4607 /*
4608 * We MUST create a file-based cache because memory-based caches are
4609 * only valid for the current process/address space.
4610 *
4611 * Due to various bugs/features in different versions of Kerberos, we
4612 * need either the krb5_cc_new_unique() function or Heimdal's version
4613 * of krb5_cc_gen_new() to create a new FILE: credential cache that
4614 * can be passed to the backend. These functions create a temporary
4615 * file (typically in /tmp) containing the cached credentials, which
4616 * are removed when we have successfully printed a job.
4617 */
4618
4619# ifdef HAVE_KRB5_CC_NEW_UNIQUE
4620 if ((error = krb5_cc_new_unique(KerberosContext, "FILE", NULL,
4621 &ccache)) != 0)
4622# else /* HAVE_HEIMDAL */
4623 if ((error = krb5_cc_gen_new(KerberosContext, &krb5_fcc_ops,
4624 &ccache)) != 0)
4625# endif /* HAVE_KRB5_CC_NEW_UNIQUE */
4626 {
4627 cupsdLogMessage(CUPSD_LOG_ERROR,
4628 "Unable to create new credentials cache (%d/%s)",
4629 error, strerror(errno));
4630 ccache = NULL;
4631 }
4632 else if ((error = krb5_parse_name(KerberosContext, con->username,
4633 &principal)) != 0)
4634 {
4635 cupsdLogMessage(CUPSD_LOG_ERROR,
4636 "Unable to parse kerberos username (%d/%s)", error,
4637 strerror(errno));
4638 krb5_cc_destroy(KerberosContext, ccache);
4639 ccache = NULL;
4640 }
4641 else if ((error = krb5_cc_initialize(KerberosContext, ccache,
4642 principal)))
4643 {
4644 cupsdLogMessage(CUPSD_LOG_ERROR,
4645 "Unable to initialize credentials cache (%d/%s)", error,
4646 strerror(errno));
4647 krb5_cc_destroy(KerberosContext, ccache);
4648 krb5_free_principal(KerberosContext, principal);
4649 ccache = NULL;
4650 }
4651 else
4652 {
4653 krb5_free_principal(KerberosContext, principal);
4654
4655 /*
4656 * Copy the user's credentials to the new cache file...
4657 */
4658
4659 major_status = gss_krb5_copy_ccache(&minor_status,
4660 con->gss_delegated_cred, ccache);
4661
4662 if (GSS_ERROR(major_status))
4663 {
4664 cupsdLogGSSMessage(CUPSD_LOG_ERROR, major_status, minor_status,
4665 "Unable to import client credentials cache");
4666 krb5_cc_destroy(KerberosContext, ccache);
4667 ccache = NULL;
4668 }
4669 else
4670 {
4671 /*
4672 * Add the KRB5CCNAME environment variable to the job so that the
4673 * backend can use the credentials when printing.
4674 */
4675
4676 snprintf(krb5ccname, sizeof(krb5ccname), "KRB5CCNAME=FILE:%s",
4677 krb5_cc_get_name(KerberosContext, ccache));
4678 envp[envc++] = krb5ccname;
4679
4680 if (!RunUser)
4681 chown(krb5_cc_get_name(KerberosContext, ccache), User, Group);
4682 }
4683 }
4684# ifdef __APPLE__
4685 }
4686# endif /* __APPLE__ */
4687# endif /* HAVE_KRB5_CC_NEW_UNIQUE || HAVE_HEIMDAL */
4688 }
4689#endif /* HAVE_GSSAPI */
4690
ef416fc2 4691 }
4692
4693 if (con->http.version == HTTP_1_1)
4694 envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.1";
4695 else if (con->http.version == HTTP_1_0)
4696 envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.0";
4697 else
4698 envp[envc ++] = "SERVER_PROTOCOL=HTTP/0.9";
4699
4700 if (con->http.cookie)
4701 {
4702 snprintf(http_cookie, sizeof(http_cookie), "HTTP_COOKIE=%s",
4703 con->http.cookie);
4704 envp[envc ++] = http_cookie;
4705 }
4706
4707 if (con->http.fields[HTTP_FIELD_USER_AGENT][0])
4708 {
4709 snprintf(http_user_agent, sizeof(http_user_agent), "HTTP_USER_AGENT=%s",
4710 con->http.fields[HTTP_FIELD_USER_AGENT]);
4711 envp[envc ++] = http_user_agent;
4712 }
4713
f7deaa1a 4714 if (con->http.fields[HTTP_FIELD_REFERER][0])
4715 {
4716 snprintf(http_referer, sizeof(http_referer), "HTTP_REFERER=%s",
4717 con->http.fields[HTTP_FIELD_REFERER]);
4718 envp[envc ++] = http_referer;
4719 }
4720
ef416fc2 4721 if (con->operation == HTTP_GET)
4722 {
ef416fc2 4723 envp[envc ++] = "REQUEST_METHOD=GET";
4724
b86bc4cf 4725 if (con->query_string)
ef416fc2 4726 {
4727 /*
4728 * Add GET form variables after ?...
4729 */
4730
b86bc4cf 4731 envp[envc ++] = con->query_string;
ef416fc2 4732 }
3dfe78b3
MS		 4733 else
4734 envp[envc ++] = "QUERY_STRING=";
ef416fc2 4735 }
4736 else
4737 {
e1d6a774 4738 sprintf(content_length, "CONTENT_LENGTH=" CUPS_LLFMT,
4739 CUPS_LLCAST con->bytes);
ef416fc2 4740 snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s",
4741 con->http.fields[HTTP_FIELD_CONTENT_TYPE]);
4742
4743 envp[envc ++] = "REQUEST_METHOD=POST";
4744 envp[envc ++] = content_length;
4745 envp[envc ++] = content_type;
4746 }
4747
4748 /*
4749 * Tell the CGI if we are using encryption...
4750 */
4751
a74454a7 4752 if (con->http.tls)
ef416fc2 4753 envp[envc ++] = "HTTPS=ON";
4754
4755 /*
4756 * Terminate the environment array...
4757 */
4758
4759 envp[envc] = NULL;
4760
4761 if (LogLevel == CUPSD_LOG_DEBUG2)
4762 {
4763 for (i = 0; i < argc; i ++)
4764 cupsdLogMessage(CUPSD_LOG_DEBUG2,
4765 "pipe_command: argv[%d] = \"%s\"", i, argv[i]);
4766 for (i = 0; i < envc; i ++)
4767 cupsdLogMessage(CUPSD_LOG_DEBUG2,
4768 "pipe_command: envp[%d] = \"%s\"", i, envp[i]);
4769 }
4770
4771 /*
4772 * Create a pipe for the output...
4773 */
4774
4775 if (cupsdOpenPipe(fds))
4776 {
ef416fc2 4777 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create pipes for CGI %s - %s",
4778 argv[0], strerror(errno));
4779 return (0);
4780 }
4781
4782 /*
4783 * Then execute the command...
4784 */
4785
4786 if (cupsdStartProcess(command, argv, envp, infile, fds[1], CGIPipes[1],
a4924f6c 4787 -1, -1, root, DefaultProfile, &pid) < 0)
ef416fc2 4788 {
4789 /*
4790 * Error - can't fork!
4791 */
4792
4793 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to fork for CGI %s - %s", argv[0],
4794 strerror(errno));
4795
4796 cupsdClosePipe(fds);
4797 pid = 0;
4798 }
4799 else
4800 {
4801 /*
4802 * Fork successful - return the PID...
4803 */
4804
4805 if (con->username[0])
5bd77a73
MS		 4806#ifdef HAVE_GSSAPI
4807 cupsdAddCert(pid, con->username, ccache);
4808#else
4809 cupsdAddCert(pid, con->username, NULL);
4810#endif /* HAVE_GSSAPI */
ef416fc2 4811
355e94dc
MS		 4812 cupsdLogMessage(CUPSD_LOG_DEBUG, "[CGI] %s started - PID = %d",
4813 command, pid);
ef416fc2 4814
4815 *outfile = fds[0];
4816 close(fds[1]);
4817 }
4818
ef416fc2 4819 return (pid);
4820}
4821
4822
4823/*
a74454a7 4824 * 'write_file()' - Send a file via HTTP.
e1d6a774 4825 */
4826
4827static int /* O - 0 on failure, 1 on success */
a74454a7 4828write_file(cupsd_client_t *con, /* I - Client connection */
4829 http_status_t code, /* I - HTTP status */
4830 char *filename, /* I - Filename */
4831 char *type, /* I - File type */
4832 struct stat *filestats) /* O - File information */
e1d6a774 4833{
4834 con->file = open(filename, O_RDONLY);
4835
355e94dc 4836 cupsdLogMessage(CUPSD_LOG_DEBUG2, "write_file: %d file=%d", con->http.fd,
e1d6a774 4837 con->file);
4838
4839 if (con->file < 0)
4840 return (0);
4841
4842 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
4843
4844 con->pipe_pid = 0;
4845
5bd77a73 4846 if (!cupsdSendHeader(con, code, type, CUPSD_AUTH_NONE))
e1d6a774 4847 return (0);
4848
4849 if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n",
4850 httpGetDateString(filestats->st_mtime)) < 0)
4851 return (0);
4852 if (httpPrintf(HTTP(con), "Content-Length: " CUPS_LLFMT "\r\n",
4853 CUPS_LLCAST filestats->st_size) < 0)
4854 return (0);
4855 if (httpPrintf(HTTP(con), "\r\n") < 0)
4856 return (0);
4857
07725fee 4858 if (cupsdFlushHeader(con) < 0)
4859 return (0);
d09495fa 4860
e1d6a774 4861 con->http.data_encoding = HTTP_ENCODE_LENGTH;
4862 con->http.data_remaining = filestats->st_size;
4863
4864 if (con->http.data_remaining <= INT_MAX)
4865 con->http._data_remaining = con->http.data_remaining;
4866 else
4867 con->http._data_remaining = INT_MAX;
4868
f7deaa1a 4869 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient,
4870 (cupsd_selfunc_t)cupsdWriteClient, con);
e1d6a774 4871
4872 return (1);
4873}
4874
4875
4876/*
f899b121 4877 * 'write_pipe()' - Flag that data is available on the CGI pipe.
4878 */
4879
4880static void
4881write_pipe(cupsd_client_t *con) /* I - Client connection */
4882{
4883 cupsdLogMessage(CUPSD_LOG_DEBUG2, "write_pipe: CGI output on fd %d...",
4884 con->file);
4885
4886 con->file_ready = 1;
4887
4888 cupsdRemoveSelect(con->file);
4889 cupsdAddSelect(con->http.fd, NULL, (cupsd_selfunc_t)cupsdWriteClient, con);
4890}
4891
4892
4893/*
75bd9771 4894 * End of "$Id: client.c 7673 2008-06-18 22:31:26Z mike $".
ef416fc2 4895 */
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