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Import CUPS 1.4svn-r7464.
[thirdparty/cups.git] / scheduler / client.c
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ef416fc2 1/*
2e4ff8af 2 * "$Id: client.c 6999 2007-09-28 19:46:53Z 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.
e1d6a774 31 * encrypt_client() - Enable encryption for the client...
b86bc4cf 32 * get_cdsa_certificate() - Convert a keychain name into the CFArrayRef
ef416fc2 33 * required by SSLSetCertificate.
34 * get_file() - Get a filename and state info.
35 * install_conf_file() - Install a configuration file.
e1d6a774 36 * is_cgi() - Is the resource a CGI script/program?
ef416fc2 37 * is_path_absolute() - Is a path absolute and free of relative elements.
4744bd90 38 * make_certificate() - Make a self-signed SSL/TLS certificate.
ef416fc2 39 * pipe_command() - Pipe the output of a command to the remote client.
a74454a7 40 * write_file() - Send a file via HTTP.
f899b121 41 * write_pipe() - Flag that data is available on the CGI pipe.
ef416fc2 42 */
43
44/*
45 * Include necessary headers...
46 */
47
ef416fc2 48#include "cupsd.h"
49
50#ifdef HAVE_CDSASSL
51# include <Security/Security.h>
b86bc4cf 52# ifdef HAVE_SECIDENTITYSEARCHPRIV_H
53# include <Security/SecIdentitySearchPriv.h>
54# else /* Declare prototype for function in that header... */
55extern OSStatus SecIdentitySearchCreateWithPolicy(SecPolicyRef policy,
56 CFStringRef idString, CSSM_KEYUSE keyUsage,
57 CFTypeRef keychainOrArray,
58 Boolean returnOnlyValidIdentities,
59 SecIdentitySearchRef* searchRef);
60# endif /* HAVE_SECIDENTITYSEARCHPRIV_H */
61# ifdef HAVE_SECPOLICYPRIV_H
62# include <Security/SecPolicyPriv.h>
63# else /* Declare prototype for function in that header... */
64extern OSStatus SecPolicySetValue(SecPolicyRef policyRef,
65 const CSSM_DATA *value);
66# endif /* HAVE_SECPOLICYPRIV_H */
ed486911 67# ifdef HAVE_SECBASEPRIV_H
68# include <Security/SecBasePriv.h>
b86bc4cf 69# else /* Declare prototype for function in that header... */
70extern const char *cssmErrorString(int error);
ed486911 71# endif /* HAVE_SECBASEPRIV_H */
ef416fc2 72#endif /* HAVE_CDSASSL */
b86bc4cf 73
4744bd90 74#ifdef HAVE_GNUTLS
75# include <gnutls/x509.h>
76#endif /* HAVE_GNUTLS */
ef416fc2 77
78
79/*
80 * Local functions...
81 */
82
83static int check_if_modified(cupsd_client_t *con,
84 struct stat *filestats);
80ca4592 85#ifdef HAVE_SSL
e1d6a774 86static int encrypt_client(cupsd_client_t *con);
80ca4592 87#endif /* HAVE_SSL */
ef416fc2 88#ifdef HAVE_CDSASSL
b86bc4cf 89static CFArrayRef get_cdsa_certificate(cupsd_client_t *con);
ef416fc2 90#endif /* HAVE_CDSASSL */
f7deaa1a 91static char *get_file(cupsd_client_t *con, struct stat *filestats,
ef416fc2 92 char *filename, int len);
93static http_status_t install_conf_file(cupsd_client_t *con);
e1d6a774 94static int is_cgi(cupsd_client_t *con, const char *filename,
95 struct stat *filestats, mime_type_t *type);
ef416fc2 96static int is_path_absolute(const char *path);
8ca02f3c 97#ifdef HAVE_SSL
b86bc4cf 98static int make_certificate(cupsd_client_t *con);
8ca02f3c 99#endif /* HAVE_SSL */
ef416fc2 100static int pipe_command(cupsd_client_t *con, int infile, int *outfile,
101 char *command, char *options, int root);
a74454a7 102static int write_file(cupsd_client_t *con, http_status_t code,
103 char *filename, char *type,
104 struct stat *filestats);
f899b121 105static void write_pipe(cupsd_client_t *con);
ef416fc2 106
107
108/*
109 * 'cupsdAcceptClient()' - Accept a new client.
110 */
111
112void
113cupsdAcceptClient(cupsd_listener_t *lis)/* I - Listener socket */
114{
ef416fc2 115 int count; /* Count of connections on a host */
116 int val; /* Parameter value */
bd7854cb 117 cupsd_client_t *con, /* New client pointer */
118 *tempcon; /* Temporary client pointer */
ef416fc2 119 http_addrlist_t *addrlist, /* List of adddresses for host */
120 *addr; /* Current address */
121 socklen_t addrlen; /* Length of address */
122 char *hostname; /* Hostname for address */
123 http_addr_t temp; /* Temporary address variable */
124 static time_t last_dos = 0; /* Time of last DoS attack */
125
126
127 cupsdLogMessage(CUPSD_LOG_DEBUG2,
bd7854cb 128 "cupsdAcceptClient(lis=%p) %d Clients = %d",
129 lis, lis->fd, cupsArrayCount(Clients));
ef416fc2 130
131 /*
132 * Make sure we don't have a full set of clients already...
133 */
134
bd7854cb 135 if (cupsArrayCount(Clients) == MaxClients)
ef416fc2 136 return;
137
138 /*
139 * Get a pointer to the next available client...
140 */
141
bd7854cb 142 if (!Clients)
143 Clients = cupsArrayNew(NULL, NULL);
144
145 if (!Clients)
91c84a35
MS		 146 {
147 cupsdLogMessage(CUPSD_LOG_ERROR,
148 "Unable to allocate memory for client array!");
149 cupsdPauseListening();
bd7854cb 150 return;
91c84a35 151 }
bd7854cb 152
91c84a35
MS		 153 if ((con = calloc(1, sizeof(cupsd_client_t))) == NULL)
154 {
155 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to allocate memory for client!");
156 cupsdPauseListening();
157 return;
158 }
ef416fc2 159
ef416fc2 160 con->http.activity = time(NULL);
161 con->file = -1;
162 con->http.hostaddr = &(con->clientaddr);
163
164 /*
165 * Accept the client and get the remote address...
166 */
167
168 addrlen = sizeof(http_addr_t);
169
170 if ((con->http.fd = accept(lis->fd, (struct sockaddr *)con->http.hostaddr,
171 &addrlen)) < 0)
172 {
76cd9e37
MS		 173 if (errno == ENFILE || errno == EMFILE)
174 cupsdPauseListening();
175
ef416fc2 176 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to accept client connection - %s.",
177 strerror(errno));
bd7854cb 178 free(con);
76cd9e37 179
ef416fc2 180 return;
181 }
182
183#ifdef AF_INET6
184 if (lis->address.addr.sa_family == AF_INET6)
185 {
186 /*
187 * Save the connected port number...
188 */
189
190 con->http.hostaddr->ipv6.sin6_port = lis->address.ipv6.sin6_port;
191
192 /*
193 * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we
194 * can more easily use...
195 */
196
197 if (con->http.hostaddr->ipv6.sin6_addr.s6_addr32[0] == 0 &&
198 con->http.hostaddr->ipv6.sin6_addr.s6_addr32[1] == 0 &&
199 ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2]) == 0xffff)
200 con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2] = 0;
201 }
202 else
203#endif /* AF_INET6 */
204 if (lis->address.addr.sa_family == AF_INET)
205 con->http.hostaddr->ipv4.sin_port = lis->address.ipv4.sin_port;
206
207 /*
208 * Check the number of clients on the same address...
209 */
210
bd7854cb 211 for (count = 0, tempcon = (cupsd_client_t *)cupsArrayFirst(Clients);
212 tempcon;
213 tempcon = (cupsd_client_t *)cupsArrayNext(Clients))
214 if (httpAddrEqual(tempcon->http.hostaddr, con->http.hostaddr))
ef416fc2 215 {
216 count ++;
217 if (count >= MaxClientsPerHost)
218 break;
219 }
220
221 if (count >= MaxClientsPerHost)
222 {
223 if ((time(NULL) - last_dos) >= 60)
224 {
225 last_dos = time(NULL);
226 cupsdLogMessage(CUPSD_LOG_WARN,
bd7854cb 227 "Possible DoS attack - more than %d clients connecting "
228 "from %s!",
229 MaxClientsPerHost, tempcon->http.hostname);
ef416fc2 230 }
231
232#ifdef WIN32
233 closesocket(con->http.fd);
234#else
235 close(con->http.fd);
236#endif /* WIN32 */
237
bd7854cb 238 free(con);
ef416fc2 239 return;
240 }
241
242 /*
243 * Get the hostname or format the IP address as needed...
244 */
245
246 if (httpAddrLocalhost(con->http.hostaddr))
247 {
248 /*
249 * Map accesses from the loopback interface to "localhost"...
250 */
251
252 strlcpy(con->http.hostname, "localhost", sizeof(con->http.hostname));
253 hostname = con->http.hostname;
254 }
255 else
256 {
257 /*
258 * Map accesses from the same host to the server name.
259 */
260
261 for (addr = ServerAddrs; addr; addr = addr->next)
262 if (httpAddrEqual(con->http.hostaddr, &(addr->addr)))
263 break;
264
265 if (addr)
266 {
267 strlcpy(con->http.hostname, ServerName, sizeof(con->http.hostname));
268 hostname = con->http.hostname;
269 }
270 else if (HostNameLookups)
271 hostname = httpAddrLookup(con->http.hostaddr, con->http.hostname,
272 sizeof(con->http.hostname));
273 else
274 {
275 hostname = NULL;
276 httpAddrString(con->http.hostaddr, con->http.hostname,
277 sizeof(con->http.hostname));
278 }
279 }
280
281 if (hostname == NULL && HostNameLookups == 2)
282 {
283 /*
284 * Can't have an unresolved IP address with double-lookups enabled...
285 */
286
287 cupsdLogMessage(CUPSD_LOG_DEBUG2,
288 "cupsdAcceptClient: Closing connection %d...",
289 con->http.fd);
290
291#ifdef WIN32
292 closesocket(con->http.fd);
293#else
294 close(con->http.fd);
295#endif /* WIN32 */
296
297 cupsdLogMessage(CUPSD_LOG_WARN,
298 "Name lookup failed - connection from %s closed!",
299 con->http.hostname);
bd7854cb 300
301 free(con);
ef416fc2 302 return;
303 }
304
305 if (HostNameLookups == 2)
306 {
307 /*
308 * Do double lookups as needed...
309 */
310
311 if ((addrlist = httpAddrGetList(con->http.hostname, AF_UNSPEC, NULL)) != NULL)
312 {
313 /*
314 * See if the hostname maps to the same IP address...
315 */
316
317 for (addr = addrlist; addr; addr = addr->next)
318 if (httpAddrEqual(con->http.hostaddr, &(addr->addr)))
319 break;
320 }
321 else
322 addr = NULL;
323
324 httpAddrFreeList(addrlist);
325
326 if (!addr)
327 {
328 /*
329 * Can't have a hostname that doesn't resolve to the same IP address
330 * with double-lookups enabled...
331 */
332
333 cupsdLogMessage(CUPSD_LOG_DEBUG2,
334 "cupsdAcceptClient: Closing connection %d...",
335 con->http.fd);
336
337#ifdef WIN32
338 closesocket(con->http.fd);
339#else
340 close(con->http.fd);
341#endif /* WIN32 */
342
343 cupsdLogMessage(CUPSD_LOG_WARN,
344 "IP lookup failed - connection from %s closed!",
345 con->http.hostname);
bd7854cb 346 free(con);
ef416fc2 347 return;
348 }
349 }
350
351#ifdef AF_INET6
352 if (con->http.hostaddr->addr.sa_family == AF_INET6)
353 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv6)",
354 con->http.fd, con->http.hostname,
355 ntohs(con->http.hostaddr->ipv6.sin6_port));
356 else
357#endif /* AF_INET6 */
358#ifdef AF_LOCAL
359 if (con->http.hostaddr->addr.sa_family == AF_LOCAL)
360 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s (Domain)",
361 con->http.fd, con->http.hostname);
362 else
363#endif /* AF_LOCAL */
364 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv4)",
365 con->http.fd, con->http.hostname,
366 ntohs(con->http.hostaddr->ipv4.sin_port));
367
368 /*
369 * Get the local address the client connected to...
370 */
371
372 addrlen = sizeof(temp);
373 if (getsockname(con->http.fd, (struct sockaddr *)&temp, &addrlen))
374 {
375 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get local address - %s",
376 strerror(errno));
377
378 strcpy(con->servername, "localhost");
379 con->serverport = LocalPort;
380 }
381 else
382 {
383#ifdef AF_INET6
384 if (temp.addr.sa_family == AF_INET6)
385 {
386 httpAddrLookup(&temp, con->servername, sizeof(con->servername));
387 con->serverport = ntohs(lis->address.ipv6.sin6_port);
388 }
389 else
390#endif /* AF_INET6 */
391 if (temp.addr.sa_family == AF_INET)
392 {
393 httpAddrLookup(&temp, con->servername, sizeof(con->servername));
394 con->serverport = ntohs(lis->address.ipv4.sin_port);
395 }
396 else
397 {
398 strcpy(con->servername, "localhost");
399 con->serverport = LocalPort;
400 }
401 }
402
bd7854cb 403 cupsArrayAdd(Clients, con);
404
ef416fc2 405 cupsdLogMessage(CUPSD_LOG_DEBUG2,
406 "cupsdAcceptClient: %d connected to server on %s:%d",
407 con->http.fd, con->servername, con->serverport);
408
409 /*
410 * Using TCP_NODELAY improves responsiveness, especially on systems
411 * with a slow loopback interface... Since we write large buffers
412 * when sending print files and requests, there shouldn't be any
413 * performance penalty for this...
414 */
415
416 val = 1;
f7deaa1a 417 setsockopt(con->http.fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
ef416fc2 418
419 /*
420 * Close this file on all execs...
421 */
422
423 fcntl(con->http.fd, F_SETFD, fcntl(con->http.fd, F_GETFD) | FD_CLOEXEC);
424
425 /*
426 * Add the socket to the select() input mask.
427 */
428
f7deaa1a 429 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con);
ef416fc2 430
ef416fc2 431 /*
432 * Temporarily suspend accept()'s until we lose a client...
433 */
434
bd7854cb 435 if (cupsArrayCount(Clients) == MaxClients)
ef416fc2 436 cupsdPauseListening();
437
438#ifdef HAVE_SSL
439 /*
440 * See if we are connecting on a secure port...
441 */
442
443 if (lis->encryption == HTTP_ENCRYPT_ALWAYS)
444 {
445 /*
446 * https connection; go secure...
447 */
448
449 con->http.encryption = HTTP_ENCRYPT_ALWAYS;
450
411affcf 451 if (!encrypt_client(con))
452 cupsdCloseClient(con);
ef416fc2 453 }
454 else
455 con->auto_ssl = 1;
456#endif /* HAVE_SSL */
457}
458
459
460/*
461 * 'cupsdCloseAllClients()' - Close all remote clients immediately.
462 */
463
464void
465cupsdCloseAllClients(void)
466{
bd7854cb 467 cupsd_client_t *con; /* Current client */
468
469
470 for (con = (cupsd_client_t *)cupsArrayFirst(Clients);
471 con;
472 con = (cupsd_client_t *)cupsArrayNext(Clients))
473 cupsdCloseClient(con);
ef416fc2 474}
475
476
477/*
478 * 'cupsdCloseClient()' - Close a remote client.
479 */
480
481int /* O - 1 if partial close, 0 if fully closed */
482cupsdCloseClient(cupsd_client_t *con) /* I - Client to close */
483{
484 int partial; /* Do partial close for SSL? */
485#ifdef HAVE_LIBSSL
486 SSL_CTX *context; /* Context for encryption */
487 SSL *conn; /* Connection for encryption */
488 unsigned long error; /* Error code */
489#elif defined(HAVE_GNUTLS)
89d46774 490 http_tls_t *conn; /* TLS connection information */
491 int error; /* Error code */
ef416fc2 492 gnutls_certificate_server_credentials *credentials;
493 /* TLS credentials */
89d46774 494# elif defined(HAVE_CDSASSL)
495 http_tls_t *conn; /* CDSA connection information */
ef416fc2 496#endif /* HAVE_LIBSSL */
497
498
499 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdCloseClient: %d", con->http.fd);
500
501 /*
502 * Flush pending writes before closing...
503 */
504
505 httpFlushWrite(HTTP(con));
506
507 partial = 0;
508
509#ifdef HAVE_SSL
510 /*
511 * Shutdown encryption as needed...
512 */
513
514 if (con->http.tls)
515 {
516 partial = 1;
517
518# ifdef HAVE_LIBSSL
519 conn = (SSL *)(con->http.tls);
520 context = SSL_get_SSL_CTX(conn);
521
522 switch (SSL_shutdown(conn))
523 {
524 case 1 :
525 cupsdLogMessage(CUPSD_LOG_INFO,
526 "cupsdCloseClient: SSL shutdown successful!");
527 break;
528 case -1 :
529 cupsdLogMessage(CUPSD_LOG_ERROR,
530 "cupsdCloseClient: Fatal error during SSL shutdown!");
531 default :
532 while ((error = ERR_get_error()) != 0)
533 cupsdLogMessage(CUPSD_LOG_ERROR, "cupsdCloseClient: %s",
534 ERR_error_string(error, NULL));
535 break;
536 }
537
538 SSL_CTX_free(context);
539 SSL_free(conn);
540
541# elif defined(HAVE_GNUTLS)
542 conn = (http_tls_t *)(con->http.tls);
543 credentials = (gnutls_certificate_server_credentials *)(conn->credentials);
544
545 error = gnutls_bye(conn->session, GNUTLS_SHUT_WR);
546 switch (error)
547 {
548 case GNUTLS_E_SUCCESS:
549 cupsdLogMessage(CUPSD_LOG_INFO,
550 "cupsdCloseClient: SSL shutdown successful!");
551 break;
552 default:
553 cupsdLogMessage(CUPSD_LOG_ERROR,
554 "cupsdCloseClient: %s", gnutls_strerror(error));
555 break;
556 }
557
558 gnutls_deinit(conn->session);
559 gnutls_certificate_free_credentials(*credentials);
560 free(credentials);
561 free(conn);
562
563# elif defined(HAVE_CDSASSL)
89d46774 564 conn = (http_tls_t *)(con->http.tls);
565
566 while (SSLClose(conn->session) == errSSLWouldBlock)
b423cd4c 567 usleep(1000);
568
89d46774 569 SSLDisposeContext(conn->session);
570
571 if (conn->certsArray)
572 CFRelease(conn->certsArray);
573
574 free(conn);
ef416fc2 575# endif /* HAVE_LIBSSL */
576
577 con->http.tls = NULL;
578 }
579#endif /* HAVE_SSL */
580
581 if (con->pipe_pid != 0)
582 {
583 /*
584 * Stop any CGI process...
585 */
586
587 cupsdLogMessage(CUPSD_LOG_DEBUG2,
588 "cupsdCloseClient: %d Killing process ID %d...",
589 con->http.fd, con->pipe_pid);
590 cupsdEndProcess(con->pipe_pid, 1);
591 con->pipe_pid = 0;
592 }
593
594 if (con->file >= 0)
595 {
f7deaa1a 596 cupsdRemoveSelect(con->file);
ef416fc2 597
598 cupsdLogMessage(CUPSD_LOG_DEBUG2,
599 "cupsdCloseClient: %d Closing data file %d.",
600 con->http.fd, con->file);
601
602 close(con->file);
603 con->file = -1;
604 }
605
606 /*
607 * Close the socket and clear the file from the input set for select()...
608 */
609
610 if (con->http.fd > 0)
611 {
612 if (partial)
613 {
614 /*
615 * Only do a partial close so that the encrypted client gets everything.
616 */
617
ef416fc2 618 shutdown(con->http.fd, 0);
f7deaa1a 619 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con);
ef416fc2 620 }
621 else
622 {
623 /*
624 * Shut the socket down fully...
625 */
626
f7deaa1a 627 cupsdRemoveSelect(con->http.fd);
ef416fc2 628 close(con->http.fd);
ef416fc2 629 con->http.fd = -1;
630 }
631 }
632
633 if (!partial)
634 {
635 /*
636 * Free memory...
637 */
638
639 if (con->http.input_set)
640 free(con->http.input_set);
641
642 httpClearCookie(HTTP(con));
643
644 cupsdClearString(&con->filename);
645 cupsdClearString(&con->command);
646 cupsdClearString(&con->options);
b86bc4cf 647 cupsdClearString(&con->query_string);
ef416fc2 648
649 if (con->request)
650 {
651 ippDelete(con->request);
652 con->request = NULL;
653 }
654
655 if (con->response)
656 {
657 ippDelete(con->response);
658 con->response = NULL;
659 }
660
661 if (con->language)
662 {
663 cupsLangFree(con->language);
664 con->language = NULL;
665 }
666
f7deaa1a 667#ifdef HAVE_AUTHORIZATION_H
668 if (con->authref)
669 {
670 AuthorizationFree(con->authref, kAuthorizationFlagDefaults);
671 con->authref = NULL;
672 }
673#endif /* HAVE_AUTHORIZATION_H */
674
ef416fc2 675 /*
676 * Re-enable new client connections if we are going back under the
677 * limit...
678 */
679
bd7854cb 680 if (cupsArrayCount(Clients) == MaxClients)
ef416fc2 681 cupsdResumeListening();
682
683 /*
684 * Compact the list of clients as necessary...
685 */
686
bd7854cb 687 cupsArrayRemove(Clients, con);
ef416fc2 688
bd7854cb 689 free(con);
ef416fc2 690 }
691
692 return (partial);
693}
694
695
d09495fa 696/*
697 * 'cupsdFlushHeader()' - Flush the header fields to the client.
698 */
699
07725fee 700int /* I - Bytes written or -1 on error */
d09495fa 701cupsdFlushHeader(cupsd_client_t *con) /* I - Client to flush to */
702{
07725fee 703 int bytes = httpFlushWrite(HTTP(con));
d09495fa 704
705 con->http.data_encoding = HTTP_ENCODE_LENGTH;
07725fee 706
707 return (bytes);
d09495fa 708}
709
710
ef416fc2 711/*
712 * 'cupsdReadClient()' - Read data from a client.
713 */
714
f7deaa1a 715void
ef416fc2 716cupsdReadClient(cupsd_client_t *con) /* I - Client to read from */
717{
718 char line[32768], /* Line from client... */
719 operation[64], /* Operation code from socket */
720 version[64], /* HTTP version number string */
721 locale[64], /* Locale */
722 *ptr; /* Pointer into strings */
723 int major, minor; /* HTTP version numbers */
724 http_status_t status; /* Transfer status */
725 ipp_state_t ipp_state; /* State of IPP transfer */
726 int bytes; /* Number of bytes to POST */
727 char *filename; /* Name of file for GET/HEAD */
728 char buf[1024]; /* Buffer for real filename */
729 struct stat filestats; /* File information */
730 mime_type_t *type; /* MIME type of file */
731 cupsd_printer_t *p; /* Printer */
732 static unsigned request_id = 0; /* Request ID for temp files */
733
734
735 status = HTTP_CONTINUE;
736
737 cupsdLogMessage(CUPSD_LOG_DEBUG2,
738 "cupsdReadClient: %d, used=%d, file=%d state=%d",
739 con->http.fd, con->http.used, con->file, con->http.state);
740
741 if (con->http.error)
742 {
743 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: http error seen...");
f7deaa1a 744 cupsdCloseClient(con);
745 return;
ef416fc2 746 }
747
748#ifdef HAVE_SSL
749 if (con->auto_ssl)
750 {
751 /*
752 * Automatically check for a SSL/TLS handshake...
753 */
754
755 con->auto_ssl = 0;
756
757 if (recv(con->http.fd, buf, 1, MSG_PEEK) == 1 &&
758 (!buf[0] || !strchr("DGHOPT", buf[0])))
759 {
760 /*
761 * Encrypt this connection...
762 */
763
764 cupsdLogMessage(CUPSD_LOG_DEBUG2,
765 "cupsdReadClient: Saw first byte %02X, auto-negotiating SSL/TLS session...",
766 buf[0] & 255);
767
411affcf 768 if (!encrypt_client(con))
f7deaa1a 769 cupsdCloseClient(con);
411affcf 770
f7deaa1a 771 return;
ef416fc2 772 }
773 }
774#endif /* HAVE_SSL */
775
776 switch (con->http.state)
777 {
778 case HTTP_WAITING :
779 /*
780 * See if we've received a request line...
781 */
782
783 if (httpGets(line, sizeof(line) - 1, HTTP(con)) == NULL)
784 {
785 cupsdLogMessage(CUPSD_LOG_DEBUG2,
786 "cupsdReadClient: httpGets returned EOF...");
f7deaa1a 787 cupsdCloseClient(con);
788 return;
ef416fc2 789 }
790
791 /*
792 * Ignore blank request lines...
793 */
794
795 if (line[0] == '\0')
796 break;
797
798 /*
799 * Clear other state variables...
800 */
801
802 httpClearFields(HTTP(con));
803
804 con->http.activity = time(NULL);
805 con->http.version = HTTP_1_0;
806 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
807 con->http.data_encoding = HTTP_ENCODE_LENGTH;
808 con->http.data_remaining = 0;
809 con->http._data_remaining = 0;
810 con->operation = HTTP_WAITING;
811 con->bytes = 0;
812 con->file = -1;
813 con->file_ready = 0;
814 con->pipe_pid = 0;
815 con->username[0] = '\0';
816 con->password[0] = '\0';
817 con->uri[0] = '\0';
818
819 cupsdClearString(&con->command);
820 cupsdClearString(&con->options);
b86bc4cf 821 cupsdClearString(&con->query_string);
ef416fc2 822
2abf387c 823 if (con->request)
824 {
825 ippDelete(con->request);
826 con->request = NULL;
827 }
828
829 if (con->response)
830 {
831 ippDelete(con->response);
832 con->response = NULL;
833 }
834
835 if (con->language)
ef416fc2 836 {
837 cupsLangFree(con->language);
838 con->language = NULL;
839 }
840
09a101d6 841#ifdef HAVE_GSSAPI
842 con->gss_have_creds = 0;
843#endif /* HAVE_GSSAPI */
844
ef416fc2 845 /*
846 * Grab the request line...
847 */
848
849 switch (sscanf(line, "%63s%1023s%63s", operation, con->uri, version))
850 {
851 case 1 :
852 cupsdLogMessage(CUPSD_LOG_ERROR,
853 "Bad request line \"%s\" from %s!", line,
854 con->http.hostname);
5bd77a73 855 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 856 cupsdCloseClient(con);
857 return;
ef416fc2 858 case 2 :
859 con->http.version = HTTP_0_9;
860 break;
861 case 3 :
862 if (sscanf(version, "HTTP/%d.%d", &major, &minor) != 2)
863 {
864 cupsdLogMessage(CUPSD_LOG_ERROR,
865 "Bad request line \"%s\" from %s!", line,
866 con->http.hostname);
5bd77a73 867 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 868 cupsdCloseClient(con);
869 return;
ef416fc2 870 }
871
872 if (major < 2)
873 {
874 con->http.version = (http_version_t)(major * 100 + minor);
875 if (con->http.version == HTTP_1_1 && KeepAlive)
876 con->http.keep_alive = HTTP_KEEPALIVE_ON;
877 else
878 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
879 }
880 else
881 {
5bd77a73 882 cupsdSendError(con, HTTP_NOT_SUPPORTED, CUPSD_AUTH_NONE);
f7deaa1a 883 cupsdCloseClient(con);
884 return;
ef416fc2 885 }
886 break;
887 }
888
889 /*
890 * Handle full URLs in the request line...
891 */
892
893 if (strcmp(con->uri, "*"))
894 {
895 char method[HTTP_MAX_URI], /* Method/scheme */
896 userpass[HTTP_MAX_URI], /* Username:password */
897 hostname[HTTP_MAX_URI], /* Hostname */
898 resource[HTTP_MAX_URI]; /* Resource path */
899 int port; /* Port number */
900
901
902 /*
903 * Separate the URI into its components...
904 */
905
a4d04587 906 httpSeparateURI(HTTP_URI_CODING_MOST, con->uri,
907 method, sizeof(method),
ef416fc2 908 userpass, sizeof(userpass),
909 hostname, sizeof(hostname), &port,
910 resource, sizeof(resource));
911
912 /*
913 * Only allow URIs with the servername, localhost, or an IP
914 * address...
915 */
916
917 if (strcmp(method, "file") &&
918 strcasecmp(hostname, ServerName) &&
919 strcasecmp(hostname, "localhost") &&
920 !isdigit(hostname[0]))
921 {
922 /*
923 * Nope, we don't do proxies...
924 */
925
926 cupsdLogMessage(CUPSD_LOG_ERROR, "Bad URI \"%s\" in request!",
927 con->uri);
5bd77a73 928 cupsdSendError(con, HTTP_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE);
f7deaa1a 929 cupsdCloseClient(con);
930 return;
ef416fc2 931 }
932
933 /*
934 * Copy the resource portion back into the URI; both resource and
935 * con->uri are HTTP_MAX_URI bytes in size...
936 */
937
938 strcpy(con->uri, resource);
939 }
940
941 /*
942 * Process the request...
943 */
944
945 if (!strcmp(operation, "GET"))
946 con->http.state = HTTP_GET;
947 else if (!strcmp(operation, "PUT"))
948 con->http.state = HTTP_PUT;
949 else if (!strcmp(operation, "POST"))
950 con->http.state = HTTP_POST;
951 else if (!strcmp(operation, "DELETE"))
952 con->http.state = HTTP_DELETE;
953 else if (!strcmp(operation, "TRACE"))
954 con->http.state = HTTP_TRACE;
955 else if (!strcmp(operation, "OPTIONS"))
956 con->http.state = HTTP_OPTIONS;
957 else if (!strcmp(operation, "HEAD"))
958 con->http.state = HTTP_HEAD;
959 else
960 {
961 cupsdLogMessage(CUPSD_LOG_ERROR, "Bad operation \"%s\"!", operation);
5bd77a73 962 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 963 cupsdCloseClient(con);
964 return;
ef416fc2 965 }
966
967 con->start = time(NULL);
968 con->operation = con->http.state;
969
89d46774 970 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdReadClient: %d %s %s HTTP/%d.%d",
971 con->http.fd, operation, con->uri,
ef416fc2 972 con->http.version / 100, con->http.version % 100);
973
974 con->http.status = HTTP_OK;
975
976 case HTTP_OPTIONS :
977 case HTTP_DELETE :
978 case HTTP_GET :
979 case HTTP_HEAD :
980 case HTTP_POST :
981 case HTTP_PUT :
982 case HTTP_TRACE :
983 /*
984 * Parse incoming parameters until the status changes...
985 */
986
f7deaa1a 987 while ((status = httpUpdate(HTTP(con))) == HTTP_CONTINUE)
988 if (con->http.used == 0 ||
989 !memchr(con->http.buffer, '\n', con->http.used))
990 break;
ef416fc2 991
992 if (status != HTTP_OK && status != HTTP_CONTINUE)
993 {
5bd77a73 994 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 995 cupsdCloseClient(con);
996 return;
ef416fc2 997 }
998 break;
999
1000 default :
1001 break; /* Anti-compiler-warning-code */
1002 }
1003
1004 /*
1005 * Handle new transfers...
1006 */
1007
1008 if (status == HTTP_OK)
1009 {
1010 if (con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE][0])
1011 {
1012 /*
1013 * Figure out the locale from the Accept-Language and Content-Type
1014 * fields...
1015 */
1016
1017 if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ',')) != NULL)
1018 *ptr = '\0';
1019
1020 if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ';')) != NULL)
1021 *ptr = '\0';
1022
1023 if ((ptr = strstr(con->http.fields[HTTP_FIELD_CONTENT_TYPE], "charset=")) != NULL)
1024 {
1025 /*
1026 * Combine language and charset, and trim any extra params in the
1027 * content-type.
1028 */
1029
1030 snprintf(locale, sizeof(locale), "%s.%s",
1031 con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ptr + 8);
1032
1033 if ((ptr = strchr(locale, ',')) != NULL)
1034 *ptr = '\0';
1035 }
1036 else
1037 snprintf(locale, sizeof(locale), "%s.%s",
1038 con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], DefaultCharset);
d6ae789d 1039
355e94dc 1040 cupsdLogMessage(CUPSD_LOG_DEBUG2,
89d46774 1041 "cupsdReadClient: %d Browser asked for language \"%s\"...",
1042 con->http.fd, locale);
1043
ef416fc2 1044 con->language = cupsLangGet(locale);
1045 }
1046 else
1047 con->language = cupsLangGet(DefaultLocale);
1048
1049 cupsdAuthorize(con);
1050
1051 if (!strncmp(con->http.fields[HTTP_FIELD_CONNECTION], "Keep-Alive", 10) &&
1052 KeepAlive)
1053 con->http.keep_alive = HTTP_KEEPALIVE_ON;
1054
1055 if (!con->http.fields[HTTP_FIELD_HOST][0] &&
1056 con->http.version >= HTTP_1_1)
1057 {
1058 /*
1059 * HTTP/1.1 and higher require the "Host:" field...
1060 */
1061
5bd77a73 1062 if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE))
f7deaa1a 1063 {
1064 cupsdCloseClient(con);
1065 return;
1066 }
ef416fc2 1067 }
1068 else if (con->operation == HTTP_OPTIONS)
1069 {
1070 /*
1071 * Do OPTIONS command...
1072 */
1073
5bd77a73 1074 if (con->best && con->best->type != CUPSD_AUTH_NONE)
ef416fc2 1075 {
5bd77a73 1076 if (!cupsdSendHeader(con, HTTP_UNAUTHORIZED, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1077 {
1078 cupsdCloseClient(con);
1079 return;
1080 }
ef416fc2 1081 }
1082
1083 if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") &&
1084 con->http.tls == NULL)
1085 {
1086#ifdef HAVE_SSL
1087 /*
1088 * Do encryption stuff...
1089 */
1090
5bd77a73 1091 if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1092 {
1093 cupsdCloseClient(con);
1094 return;
1095 }
ef416fc2 1096
1097 httpPrintf(HTTP(con), "Connection: Upgrade\r\n");
1098 httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1099 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1100 httpPrintf(HTTP(con), "\r\n");
07725fee 1101
1102 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1103 {
1104 cupsdCloseClient(con);
1105 return;
1106 }
ef416fc2 1107
411affcf 1108 if (!encrypt_client(con))
f7deaa1a 1109 {
1110 cupsdCloseClient(con);
1111 return;
1112 }
ef416fc2 1113#else
5bd77a73 1114 if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE))
f7deaa1a 1115 {
1116 cupsdCloseClient(con);
1117 return;
1118 }
ef416fc2 1119#endif /* HAVE_SSL */
1120 }
1121
5bd77a73 1122 if (!cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1123 {
1124 cupsdCloseClient(con);
1125 return;
1126 }
ef416fc2 1127
1128 httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n");
1129 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1130 httpPrintf(HTTP(con), "\r\n");
07725fee 1131
1132 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1133 {
1134 cupsdCloseClient(con);
1135 return;
1136 }
ef416fc2 1137 }
1138 else if (!is_path_absolute(con->uri))
1139 {
1140 /*
1141 * Protect against malicious users!
1142 */
1143
5bd77a73 1144 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1145 {
1146 cupsdCloseClient(con);
1147 return;
1148 }
ef416fc2 1149 }
1150 else
1151 {
1152 if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") &&
1153 con->http.tls == NULL)
1154 {
1155#ifdef HAVE_SSL
1156 /*
1157 * Do encryption stuff...
1158 */
1159
5bd77a73 1160 if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1161 {
1162 cupsdCloseClient(con);
1163 return;
1164 }
ef416fc2 1165
1166 httpPrintf(HTTP(con), "Connection: Upgrade\r\n");
1167 httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1168 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1169 httpPrintf(HTTP(con), "\r\n");
07725fee 1170
1171 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1172 {
1173 cupsdCloseClient(con);
1174 return;
1175 }
ef416fc2 1176
411affcf 1177 if (!encrypt_client(con))
f7deaa1a 1178 {
1179 cupsdCloseClient(con);
1180 return;
1181 }
ef416fc2 1182#else
5bd77a73 1183 if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE))
f7deaa1a 1184 {
1185 cupsdCloseClient(con);
1186 return;
1187 }
ef416fc2 1188#endif /* HAVE_SSL */
1189 }
1190
1191 if ((status = cupsdIsAuthorized(con, NULL)) != HTTP_OK)
1192 {
1193 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1194 "cupsdReadClient: Unauthorized request for %s...\n",
1195 con->uri);
5bd77a73 1196 cupsdSendError(con, status, CUPSD_AUTH_NONE);
f7deaa1a 1197 cupsdCloseClient(con);
1198 return;
ef416fc2 1199 }
1200
b423cd4c 1201 if (con->http.expect &&
1202 (con->operation == HTTP_POST || con->operation == HTTP_PUT))
ef416fc2 1203 {
b423cd4c 1204 if (con->http.expect == HTTP_CONTINUE)
1205 {
1206 /*
1207 * Send 100-continue header...
1208 */
1209
5bd77a73 1210 if (!cupsdSendHeader(con, HTTP_CONTINUE, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1211 {
1212 cupsdCloseClient(con);
1213 return;
1214 }
b423cd4c 1215 }
1216 else
1217 {
1218 /*
1219 * Send 417-expectation-failed header...
1220 */
1221
5bd77a73 1222 if (!cupsdSendHeader(con, HTTP_EXPECTATION_FAILED, NULL, CUPSD_AUTH_NONE))
f7deaa1a 1223 {
1224 cupsdCloseClient(con);
1225 return;
1226 }
b423cd4c 1227
1228 httpPrintf(HTTP(con), "Content-Length: 0\r\n");
1229 httpPrintf(HTTP(con), "\r\n");
07725fee 1230
1231 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1232 {
1233 cupsdCloseClient(con);
1234 return;
1235 }
b423cd4c 1236 }
ef416fc2 1237 }
1238
1239 switch (con->http.state)
1240 {
1241 case HTTP_GET_SEND :
1242 if (!strncmp(con->uri, "/printers/", 10) &&
1243 !strcmp(con->uri + strlen(con->uri) - 4, ".ppd"))
1244 {
1245 /*
1246 * Send PPD file - get the real printer name since printer
1247 * names are not case sensitive but filenames can be...
1248 */
1249
1250 con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */
1251
1252 if ((p = cupsdFindPrinter(con->uri + 10)) != NULL)
1253 snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name);
1254 else
1255 {
5bd77a73 1256 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1257 {
1258 cupsdCloseClient(con);
1259 return;
1260 }
ef416fc2 1261
1262 break;
1263 }
1264 }
1265
1266 if ((!strncmp(con->uri, "/admin", 6) &&
1267 strncmp(con->uri, "/admin/conf/", 12) &&
1268 strncmp(con->uri, "/admin/log/", 11)) ||
1269 !strncmp(con->uri, "/printers", 9) ||
1270 !strncmp(con->uri, "/classes", 8) ||
1271 !strncmp(con->uri, "/help", 5) ||
1272 !strncmp(con->uri, "/jobs", 5))
1273 {
1274 /*
1275 * Send CGI output...
1276 */
1277
1278 if (!strncmp(con->uri, "/admin", 6))
1279 {
1280 cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi",
1281 ServerBin);
1282
b423cd4c 1283 cupsdSetString(&con->options, strchr(con->uri + 6, '?'));
ef416fc2 1284 }
1285 else if (!strncmp(con->uri, "/printers", 9))
1286 {
1287 cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi",
1288 ServerBin);
b423cd4c 1289
1290 if (con->uri[9] && con->uri[10])
1291 cupsdSetString(&con->options, con->uri + 9);
1292 else
1293 cupsdSetString(&con->options, NULL);
ef416fc2 1294 }
1295 else if (!strncmp(con->uri, "/classes", 8))
1296 {
1297 cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi",
1298 ServerBin);
b423cd4c 1299
1300 if (con->uri[8] && con->uri[9])
1301 cupsdSetString(&con->options, con->uri + 8);
1302 else
1303 cupsdSetString(&con->options, NULL);
ef416fc2 1304 }
1305 else if (!strncmp(con->uri, "/jobs", 5))
1306 {
1307 cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi",
1308 ServerBin);
b423cd4c 1309
1310 if (con->uri[5] && con->uri[6])
1311 cupsdSetString(&con->options, con->uri + 5);
1312 else
1313 cupsdSetString(&con->options, NULL);
ef416fc2 1314 }
1315 else
1316 {
1317 cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi",
1318 ServerBin);
ef416fc2 1319
b423cd4c 1320 if (con->uri[5] && con->uri[6])
1321 cupsdSetString(&con->options, con->uri + 5);
1322 else
1323 cupsdSetString(&con->options, NULL);
1324 }
ef416fc2 1325
1326 if (!cupsdSendCommand(con, con->command, con->options, 0))
1327 {
5bd77a73 1328 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1329 {
1330 cupsdCloseClient(con);
1331 return;
1332 }
ef416fc2 1333 }
1334 else
1335 cupsdLogRequest(con, HTTP_OK);
1336
1337 if (con->http.version <= HTTP_1_0)
1338 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
1339 }
1340 else if ((!strncmp(con->uri, "/admin/conf/", 12) &&
1341 (strchr(con->uri + 12, '/') ||
1342 strlen(con->uri) == 12)) ||
1343 (!strncmp(con->uri, "/admin/log/", 11) &&
1344 (strchr(con->uri + 11, '/') ||
1345 strlen(con->uri) == 11)))
1346 {
1347 /*
1348 * GET can only be done to configuration files under
1349 * /admin/conf...
1350 */
1351
5bd77a73 1352 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1353 {
1354 cupsdCloseClient(con);
1355 return;
1356 }
ef416fc2 1357
1358 break;
1359 }
1360 else
1361 {
1362 /*
1363 * Serve a file...
1364 */
1365
1366 if ((filename = get_file(con, &filestats, buf,
1367 sizeof(buf))) == NULL)
1368 {
5bd77a73 1369 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1370 {
1371 cupsdCloseClient(con);
1372 return;
1373 }
ef416fc2 1374
1375 break;
1376 }
1377
4400e98d 1378 type = mimeFileType(MimeDatabase, filename, NULL, NULL);
ef416fc2 1379
e1d6a774 1380 if (is_cgi(con, filename, &filestats, type))
ef416fc2 1381 {
1382 /*
1383 * Note: con->command and con->options were set by
e1d6a774 1384 * is_cgi()...
ef416fc2 1385 */
1386
1387 if (!cupsdSendCommand(con, con->command, con->options, 0))
1388 {
5bd77a73 1389 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1390 {
1391 cupsdCloseClient(con);
1392 return;
1393 }
ef416fc2 1394 }
1395 else
1396 cupsdLogRequest(con, HTTP_OK);
1397
1398 if (con->http.version <= HTTP_1_0)
1399 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
1400 break;
1401 }
1402
1403 if (!check_if_modified(con, &filestats))
1404 {
5bd77a73 1405 if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE))
f7deaa1a 1406 {
1407 cupsdCloseClient(con);
1408 return;
1409 }
ef416fc2 1410 }
1411 else
1412 {
1413 if (type == NULL)
1414 strcpy(line, "text/plain");
1415 else
1416 snprintf(line, sizeof(line), "%s/%s", type->super, type->type);
1417
a74454a7 1418 if (!write_file(con, HTTP_OK, filename, line, &filestats))
f7deaa1a 1419 {
1420 cupsdCloseClient(con);
1421 return;
1422 }
ef416fc2 1423 }
1424 }
1425 break;
1426
1427 case HTTP_POST_RECV :
1428 /*
1429 * See if the POST request includes a Content-Length field, and if
1430 * so check the length against any limits that are set...
1431 */
1432
1433 cupsdLogMessage(CUPSD_LOG_DEBUG2, "POST %s", con->uri);
1434 cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s",
1435 con->http.fields[HTTP_FIELD_CONTENT_TYPE]);
1436
1437 if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] &&
1438 MaxRequestSize > 0 &&
1439 con->http.data_remaining > MaxRequestSize)
1440 {
1441 /*
1442 * Request too large...
1443 */
1444
5bd77a73 1445 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1446 {
1447 cupsdCloseClient(con);
1448 return;
1449 }
ef416fc2 1450
1451 break;
1452 }
839a51c8
MS		 1453 else if (con->http.data_remaining < 0 ||
1454 (!con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] &&
1455 con->http.data_encoding == HTTP_ENCODE_LENGTH))
ef416fc2 1456 {
1457 /*
1458 * Negative content lengths are invalid!
1459 */
1460
5bd77a73 1461 if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE))
f7deaa1a 1462 {
1463 cupsdCloseClient(con);
1464 return;
1465 }
ef416fc2 1466
1467 break;
1468 }
1469
1470 /*
1471 * See what kind of POST request this is; for IPP requests the
1472 * content-type field will be "application/ipp"...
1473 */
1474
1475 if (!strcmp(con->http.fields[HTTP_FIELD_CONTENT_TYPE],
1476 "application/ipp"))
1477 con->request = ippNew();
1478 else if ((!strncmp(con->uri, "/admin", 6) &&
1479 strncmp(con->uri, "/admin/conf/", 12) &&
1480 strncmp(con->uri, "/admin/log/", 11)) ||
1481 !strncmp(con->uri, "/printers", 9) ||
1482 !strncmp(con->uri, "/classes", 8) ||
1483 !strncmp(con->uri, "/help", 5) ||
1484 !strncmp(con->uri, "/jobs", 5))
1485 {
1486 /*
1487 * CGI request...
1488 */
1489
1490 if (!strncmp(con->uri, "/admin", 6))
1491 {
1492 cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi",
1493 ServerBin);
1494
b423cd4c 1495 cupsdSetString(&con->options, strchr(con->uri + 6, '?'));
ef416fc2 1496 }
1497 else if (!strncmp(con->uri, "/printers", 9))
1498 {
1499 cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi",
1500 ServerBin);
b423cd4c 1501
1502 if (con->uri[9] && con->uri[10])
1503 cupsdSetString(&con->options, con->uri + 9);
1504 else
1505 cupsdSetString(&con->options, NULL);
ef416fc2 1506 }
1507 else if (!strncmp(con->uri, "/classes", 8))
1508 {
1509 cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi",
1510 ServerBin);
b423cd4c 1511
1512 if (con->uri[8] && con->uri[9])
1513 cupsdSetString(&con->options, con->uri + 8);
1514 else
1515 cupsdSetString(&con->options, NULL);
ef416fc2 1516 }
1517 else if (!strncmp(con->uri, "/jobs", 5))
1518 {
1519 cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi",
1520 ServerBin);
b423cd4c 1521
1522 if (con->uri[5] && con->uri[6])
1523 cupsdSetString(&con->options, con->uri + 5);
1524 else
1525 cupsdSetString(&con->options, NULL);
ef416fc2 1526 }
1527 else
1528 {
1529 cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi",
1530 ServerBin);
ef416fc2 1531
b423cd4c 1532 if (con->uri[5] && con->uri[6])
1533 cupsdSetString(&con->options, con->uri + 5);
1534 else
1535 cupsdSetString(&con->options, NULL);
1536 }
ef416fc2 1537
1538 cupsdLogMessage(CUPSD_LOG_DEBUG2,
b423cd4c 1539 "cupsdReadClient: %d command=\"%s\", "
1540 "options = \"%s\"",
f301802f 1541 con->http.fd, con->command,
1542 con->options ? con->options : "(null)");
ef416fc2 1543
1544 if (con->http.version <= HTTP_1_0)
1545 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
1546 }
1547 else
1548 {
1549 /*
1550 * POST to a file...
1551 */
1552
1553 if ((filename = get_file(con, &filestats, buf,
1554 sizeof(buf))) == NULL)
1555 {
5bd77a73 1556 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1557 {
1558 cupsdCloseClient(con);
1559 return;
1560 }
ef416fc2 1561
1562 break;
1563 }
1564
4400e98d 1565 type = mimeFileType(MimeDatabase, filename, NULL, NULL);
ef416fc2 1566
e1d6a774 1567 if (!is_cgi(con, filename, &filestats, type))
ef416fc2 1568 {
1569 /*
1570 * Only POST to CGI's...
1571 */
1572
5bd77a73 1573 if (!cupsdSendError(con, HTTP_UNAUTHORIZED, CUPSD_AUTH_NONE))
f7deaa1a 1574 {
1575 cupsdCloseClient(con);
1576 return;
1577 }
ef416fc2 1578 }
1579 }
1580 break;
1581
1582 case HTTP_PUT_RECV :
1583 /*
1584 * Validate the resource name...
1585 */
1586
1587 if (strncmp(con->uri, "/admin/conf/", 12) ||
1588 strchr(con->uri + 12, '/') ||
1589 strlen(con->uri) == 12)
1590 {
1591 /*
1592 * PUT can only be done to configuration files under
1593 * /admin/conf...
1594 */
1595
5bd77a73 1596 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1597 {
1598 cupsdCloseClient(con);
1599 return;
1600 }
ef416fc2 1601
1602 break;
1603 }
1604
1605 /*
1606 * See if the PUT request includes a Content-Length field, and if
1607 * so check the length against any limits that are set...
1608 */
1609
1610 cupsdLogMessage(CUPSD_LOG_DEBUG2, "PUT %s", con->uri);
1611 cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s",
1612 con->http.fields[HTTP_FIELD_CONTENT_TYPE]);
1613
1614 if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] &&
1615 MaxRequestSize > 0 &&
1616 con->http.data_remaining > MaxRequestSize)
1617 {
1618 /*
1619 * Request too large...
1620 */
1621
5bd77a73 1622 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1623 {
1624 cupsdCloseClient(con);
1625 return;
1626 }
ef416fc2 1627
1628 break;
1629 }
1630 else if (con->http.data_remaining < 0)
1631 {
1632 /*
1633 * Negative content lengths are invalid!
1634 */
1635
5bd77a73 1636 if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE))
f7deaa1a 1637 {
1638 cupsdCloseClient(con);
1639 return;
1640 }
ef416fc2 1641
1642 break;
1643 }
1644
1645 /*
1646 * Open a temporary file to hold the request...
1647 */
1648
1649 cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot,
1650 request_id ++);
1651 con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640);
1652
ef416fc2 1653 if (con->file < 0)
1654 {
a4924f6c
MS		 1655 cupsdLogMessage(CUPSD_LOG_ERROR,
1656 "Unable to create request file %s: %s",
1657 con->filename, strerror(errno));
1658
5bd77a73 1659 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1660 {
1661 cupsdCloseClient(con);
1662 return;
1663 }
ef416fc2 1664 }
1665
a4924f6c
MS		 1666 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1667 "cupsdReadClient: %d REQUEST %s=%d", con->http.fd,
1668 con->filename, con->file);
1669
ef416fc2 1670 fchmod(con->file, 0640);
1671 fchown(con->file, RunUser, Group);
1672 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
1673 break;
1674
1675 case HTTP_DELETE :
1676 case HTTP_TRACE :
5bd77a73 1677 cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE);
f7deaa1a 1678 cupsdCloseClient(con);
1679 return;
ef416fc2 1680
1681 case HTTP_HEAD :
1682 if (!strncmp(con->uri, "/printers/", 10) &&
1683 !strcmp(con->uri + strlen(con->uri) - 4, ".ppd"))
1684 {
1685 /*
1686 * Send PPD file - get the real printer name since printer
1687 * names are not case sensitive but filenames can be...
1688 */
1689
1690 con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */
1691
1692 if ((p = cupsdFindPrinter(con->uri + 10)) != NULL)
1693 snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name);
1694 else
1695 {
5bd77a73 1696 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 1697 {
1698 cupsdCloseClient(con);
1699 return;
1700 }
ef416fc2 1701
1702 break;
1703 }
1704 }
1705
1706 if ((!strncmp(con->uri, "/admin", 6) &&
1707 strncmp(con->uri, "/admin/conf/", 12) &&
1708 strncmp(con->uri, "/admin/log/", 11)) ||
1709 !strncmp(con->uri, "/printers", 9) ||
1710 !strncmp(con->uri, "/classes", 8) ||
1711 !strncmp(con->uri, "/help", 5) ||
1712 !strncmp(con->uri, "/jobs", 5))
1713 {
1714 /*
1715 * CGI output...
1716 */
1717
5bd77a73 1718 if (!cupsdSendHeader(con, HTTP_OK, "text/html", CUPSD_AUTH_NONE))
f7deaa1a 1719 {
1720 cupsdCloseClient(con);
1721 return;
1722 }
ef416fc2 1723
1724 if (httpPrintf(HTTP(con), "\r\n") < 0)
f7deaa1a 1725 {
1726 cupsdCloseClient(con);
1727 return;
1728 }
ef416fc2 1729
07725fee 1730 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1731 {
1732 cupsdCloseClient(con);
1733 return;
1734 }
d09495fa 1735
ef416fc2 1736 cupsdLogRequest(con, HTTP_OK);
1737 }
1738 else if ((!strncmp(con->uri, "/admin/conf/", 12) &&
1739 (strchr(con->uri + 12, '/') ||
1740 strlen(con->uri) == 12)) ||
1741 (!strncmp(con->uri, "/admin/log/", 11) &&
1742 (strchr(con->uri + 11, '/') ||
1743 strlen(con->uri) == 11)))
1744 {
1745 /*
1746 * HEAD can only be done to configuration files under
1747 * /admin/conf...
1748 */
1749
5bd77a73 1750 if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE))
f7deaa1a 1751 {
1752 cupsdCloseClient(con);
1753 return;
1754 }
ef416fc2 1755
1756 break;
1757 }
1758 else if ((filename = get_file(con, &filestats, buf,
1759 sizeof(buf))) == NULL)
1760 {
5bd77a73 1761 if (!cupsdSendHeader(con, HTTP_NOT_FOUND, "text/html", CUPSD_AUTH_NONE))
f7deaa1a 1762 {
1763 cupsdCloseClient(con);
1764 return;
1765 }
ef416fc2 1766
1767 cupsdLogRequest(con, HTTP_NOT_FOUND);
1768 }
1769 else if (!check_if_modified(con, &filestats))
1770 {
5bd77a73 1771 if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE))
f7deaa1a 1772 {
1773 cupsdCloseClient(con);
1774 return;
1775 }
ef416fc2 1776
1777 cupsdLogRequest(con, HTTP_NOT_MODIFIED);
1778 }
1779 else
1780 {
1781 /*
1782 * Serve a file...
1783 */
1784
4400e98d 1785 type = mimeFileType(MimeDatabase, filename, NULL, NULL);
ef416fc2 1786 if (type == NULL)
1787 strcpy(line, "text/plain");
1788 else
1789 snprintf(line, sizeof(line), "%s/%s", type->super, type->type);
1790
5bd77a73 1791 if (!cupsdSendHeader(con, HTTP_OK, line, CUPSD_AUTH_NONE))
f7deaa1a 1792 {
1793 cupsdCloseClient(con);
1794 return;
1795 }
ef416fc2 1796
1797 if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n",
1798 httpGetDateString(filestats.st_mtime)) < 0)
f7deaa1a 1799 {
1800 cupsdCloseClient(con);
1801 return;
1802 }
ef416fc2 1803
1804 if (httpPrintf(HTTP(con), "Content-Length: %lu\r\n",
1805 (unsigned long)filestats.st_size) < 0)
f7deaa1a 1806 {
1807 cupsdCloseClient(con);
1808 return;
1809 }
ef416fc2 1810
1811 cupsdLogRequest(con, HTTP_OK);
1812 }
1813
1814 if (httpPrintf(HTTP(con), "\r\n") < 0)
f7deaa1a 1815 {
1816 cupsdCloseClient(con);
1817 return;
1818 }
ef416fc2 1819
07725fee 1820 if (cupsdFlushHeader(con) < 0)
f7deaa1a 1821 {
1822 cupsdCloseClient(con);
1823 return;
1824 }
d09495fa 1825
ef416fc2 1826 con->http.state = HTTP_WAITING;
1827 break;
1828
1829 default :
1830 break; /* Anti-compiler-warning-code */
1831 }
1832 }
1833 }
1834
1835 /*
1836 * Handle any incoming data...
1837 */
1838
1839 switch (con->http.state)
1840 {
1841 case HTTP_PUT_RECV :
1842 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1843 "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_%s, "
1844 "con->data_remaining=" CUPS_LLFMT ", con->file=%d",
1845 con->http.fd,
1846 con->http.data_encoding == HTTP_ENCODE_CHUNKED ?
1847 "CHUNKED" : "LENGTH",
1848 CUPS_LLCAST con->http.data_remaining, con->file);
1849
f7deaa1a 1850 do
ef416fc2 1851 {
f7deaa1a 1852 if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0)
1853 {
1854 cupsdCloseClient(con);
1855 return;
1856 }
1857 else if (bytes > 0)
1858 {
1859 con->bytes += bytes;
ef416fc2 1860
f7deaa1a 1861 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1862 "cupsdReadClient: %d writing %d bytes to %d",
1863 con->http.fd, bytes, con->file);
ef416fc2 1864
f7deaa1a 1865 if (write(con->file, line, bytes) < bytes)
1866 {
1867 cupsdLogMessage(CUPSD_LOG_ERROR,
1868 "cupsdReadClient: Unable to write %d bytes to %s: %s",
1869 bytes, con->filename, strerror(errno));
ef416fc2 1870
f7deaa1a 1871 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1872 "cupsdReadClient: Closing data file %d...",
1873 con->file);
ef416fc2 1874
f7deaa1a 1875 close(con->file);
1876 con->file = -1;
1877 unlink(con->filename);
1878 cupsdClearString(&con->filename);
ef416fc2 1879
5bd77a73 1880 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1881 {
1882 cupsdCloseClient(con);
1883 return;
1884 }
1885 }
ef416fc2 1886 }
f7deaa1a 1887 }
1888 while (con->http.state == HTTP_PUT_RECV && con->http.used > 0);
ef416fc2 1889
1890 if (con->http.state == HTTP_WAITING)
1891 {
1892 /*
1893 * End of file, see how big it is...
1894 */
1895
1896 fstat(con->file, &filestats);
1897
1898 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1899 "cupsdReadClient: %d Closing data file %d, size="
1900 CUPS_LLFMT ".",
1901 con->http.fd, con->file,
1902 CUPS_LLCAST filestats.st_size);
1903
1904 close(con->file);
1905 con->file = -1;
1906
1907 if (filestats.st_size > MaxRequestSize &&
1908 MaxRequestSize > 0)
1909 {
1910 /*
1911 * Request is too big; remove it and send an error...
1912 */
1913
1914 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1915 "cupsdReadClient: %d Removing temp file %s",
1916 con->http.fd, con->filename);
1917 unlink(con->filename);
1918 cupsdClearString(&con->filename);
1919
5bd77a73 1920 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 1921 {
1922 cupsdCloseClient(con);
1923 return;
1924 }
ef416fc2 1925 }
1926
1927 /*
1928 * Install the configuration file...
1929 */
1930
1931 status = install_conf_file(con);
1932
1933 /*
1934 * Return the status to the client...
1935 */
1936
5bd77a73 1937 if (!cupsdSendError(con, status, CUPSD_AUTH_NONE))
f7deaa1a 1938 {
1939 cupsdCloseClient(con);
1940 return;
1941 }
ef416fc2 1942 }
1943 break;
1944
1945 case HTTP_POST_RECV :
1946 cupsdLogMessage(CUPSD_LOG_DEBUG2,
1947 "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_"
1948 "%s, con->data_remaining=" CUPS_LLFMT ", con->file=%d",
1949 con->http.fd,
1950 con->http.data_encoding == HTTP_ENCODE_CHUNKED ?
1951 "CHUNKED" : "LENGTH",
1952 CUPS_LLCAST con->http.data_remaining, con->file);
1953
f7deaa1a 1954 do
ef416fc2 1955 {
f7deaa1a 1956 if (con->request)
ef416fc2 1957 {
f7deaa1a 1958 /*
1959 * Grab any request data from the connection...
1960 */
ef416fc2 1961
f7deaa1a 1962 if ((ipp_state = ippRead(&(con->http), con->request)) == IPP_ERROR)
ef416fc2 1963 {
f7deaa1a 1964 cupsdLogMessage(CUPSD_LOG_ERROR,
1965 "cupsdReadClient: %d IPP Read Error!",
1966 con->http.fd);
1967
5bd77a73 1968 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 1969 cupsdCloseClient(con);
1970 return;
ef416fc2 1971 }
f7deaa1a 1972 else if (ipp_state != IPP_DATA)
1973 {
1974 if (con->http.state == HTTP_POST_SEND)
1975 {
5bd77a73 1976 cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE);
f7deaa1a 1977 cupsdCloseClient(con);
1978 return;
1979 }
ef416fc2 1980
f7deaa1a 1981 break;
1982 }
1983 else
1984 con->bytes += ippLength(con->request);
1985 }
ef416fc2 1986
f7deaa1a 1987 if (con->file < 0 && con->http.state != HTTP_POST_SEND)
1988 {
1989 /*
1990 * Create a file as needed for the request data...
1991 */
ef416fc2 1992
f7deaa1a 1993 cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, request_id ++);
1994 con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640);
ef416fc2 1995
f7deaa1a 1996 if (con->file < 0)
1997 {
a4924f6c
MS		 1998 cupsdLogMessage(CUPSD_LOG_ERROR,
1999 "Unable to create request file %s: %s",
2000 con->filename, strerror(errno));
2001
5bd77a73 2002 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 2003 {
2004 cupsdCloseClient(con);
2005 return;
2006 }
2007 }
ef416fc2 2008
a4924f6c
MS		 2009 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: %d REQUEST %s=%d", con->http.fd,
2010 con->filename, con->file);
2011
f7deaa1a 2012 fchmod(con->file, 0640);
2013 fchown(con->file, RunUser, Group);
2014 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
2015 }
ef416fc2 2016
f7deaa1a 2017 if (con->http.state != HTTP_POST_SEND)
ef416fc2 2018 {
f7deaa1a 2019 if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0)
2020 {
2021 cupsdCloseClient(con);
2022 return;
2023 }
2024 else if (bytes > 0)
2025 {
2026 con->bytes += bytes;
ef416fc2 2027
f7deaa1a 2028 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2029 "cupsdReadClient: %d writing %d bytes to %d",
2030 con->http.fd, bytes, con->file);
ef416fc2 2031
f7deaa1a 2032 if (write(con->file, line, bytes) < bytes)
2033 {
2034 cupsdLogMessage(CUPSD_LOG_ERROR,
2035 "cupsdReadClient: Unable to write %d bytes to %s: %s",
2036 bytes, con->filename, strerror(errno));
ef416fc2 2037
f7deaa1a 2038 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2039 "cupsdReadClient: Closing file %d...",
2040 con->file);
ef416fc2 2041
f7deaa1a 2042 close(con->file);
2043 con->file = -1;
2044 unlink(con->filename);
2045 cupsdClearString(&con->filename);
ef416fc2 2046
5bd77a73 2047 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 2048 {
2049 cupsdCloseClient(con);
2050 return;
2051 }
2052 }
2053 }
2054 else if (con->http.state == HTTP_POST_RECV)
2055 return;
2056 else if (con->http.state != HTTP_POST_SEND)
2057 {
2058 cupsdCloseClient(con);
2059 return;
ef416fc2 2060 }
2061 }
f7deaa1a 2062 }
2063 while (con->http.state == HTTP_POST_RECV && con->http.used > 0);
ef416fc2 2064
2065 if (con->http.state == HTTP_POST_SEND)
2066 {
2067 if (con->file >= 0)
2068 {
2069 fstat(con->file, &filestats);
2070
2071 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2072 "cupsdReadClient: %d Closing data file %d, "
2073 "size=" CUPS_LLFMT ".",
2074 con->http.fd, con->file,
2075 CUPS_LLCAST filestats.st_size);
2076
2077 close(con->file);
2078 con->file = -1;
2079
2080 if (filestats.st_size > MaxRequestSize &&
2081 MaxRequestSize > 0)
2082 {
2083 /*
2084 * Request is too big; remove it and send an error...
2085 */
2086
2087 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2088 "cupsdReadClient: %d Removing temp file %s",
2089 con->http.fd, con->filename);
2090 unlink(con->filename);
2091 cupsdClearString(&con->filename);
2092
2093 if (con->request)
2094 {
2095 /*
2096 * Delete any IPP request data...
2097 */
2098
2099 ippDelete(con->request);
2100 con->request = NULL;
2101 }
2102
5bd77a73 2103 if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE))
f7deaa1a 2104 {
2105 cupsdCloseClient(con);
2106 return;
2107 }
ef416fc2 2108 }
2109
2110 if (con->command)
2111 {
2112 if (!cupsdSendCommand(con, con->command, con->options, 0))
2113 {
5bd77a73 2114 if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE))
f7deaa1a 2115 {
2116 cupsdCloseClient(con);
2117 return;
2118 }
ef416fc2 2119 }
2120 else
2121 cupsdLogRequest(con, HTTP_OK);
2122 }
2123 }
2124
2125 if (con->request)
f7deaa1a 2126 {
2127 cupsdProcessIPPRequest(con);
bc44d920 2128
2129 if (con->filename)
2130 {
2131 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2132 "cupsdReadClient: %d Removing temp file %s",
2133 con->http.fd, con->filename);
2134 unlink(con->filename);
2135 cupsdClearString(&con->filename);
2136 }
2137
f7deaa1a 2138 return;
2139 }
ef416fc2 2140 }
2141 break;
2142
2143 default :
2144 break; /* Anti-compiler-warning-code */
2145 }
2146
2147 if (!con->http.keep_alive && con->http.state == HTTP_WAITING)
f7deaa1a 2148 cupsdCloseClient(con);
ef416fc2 2149}
2150
2151
2152/*
2153 * 'cupsdSendCommand()' - Send output from a command via HTTP.
2154 */
2155
2156int /* O - 1 on success, 0 on failure */
2157cupsdSendCommand(
2158 cupsd_client_t *con, /* I - Client connection */
2159 char *command, /* I - Command to run */
2160 char *options, /* I - Command-line options */
2161 int root) /* I - Run as root? */
2162{
2163 int fd; /* Standard input file descriptor */
2164
2165
2166 if (con->filename)
ed486911 2167 {
ef416fc2 2168 fd = open(con->filename, O_RDONLY);
ef416fc2 2169
ed486911 2170 if (fd < 0)
2171 {
2172 cupsdLogMessage(CUPSD_LOG_ERROR,
2173 "cupsdSendCommand: %d Unable to open \"%s\" for reading: %s",
2174 con->http.fd, con->filename ? con->filename : "/dev/null",
2175 strerror(errno));
2176 return (0);
2177 }
ef416fc2 2178
ed486911 2179 fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
2180 }
2181 else
2182 fd = -1;
ef416fc2 2183
2184 con->pipe_pid = pipe_command(con, fd, &(con->file), command, options, root);
2185
ed486911 2186 if (fd >= 0)
2187 close(fd);
ef416fc2 2188
2189 cupsdLogMessage(CUPSD_LOG_INFO, "Started \"%s\" (pid=%d)", command,
2190 con->pipe_pid);
2191
2192 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendCommand: %d file=%d",
2193 con->http.fd, con->file);
2194
2195 if (con->pipe_pid == 0)
2196 return (0);
2197
2198 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
2199
f899b121 2200 cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con);
ef416fc2 2201
2202 con->sent_header = 0;
2203 con->file_ready = 0;
2204 con->got_fields = 0;
2205 con->field_col = 0;
2206
2207 return (1);
2208}
2209
2210
2211/*
2212 * 'cupsdSendError()' - Send an error message via HTTP.
2213 */
2214
2215int /* O - 1 if successful, 0 otherwise */
2216cupsdSendError(cupsd_client_t *con, /* I - Connection */
f899b121 2217 http_status_t code, /* I - Error code */
2218 int auth_type)/* I - Authentication type */
ef416fc2 2219{
4744bd90 2220#ifdef HAVE_SSL
2221 /*
2222 * Force client to upgrade for authentication if that is how the
2223 * server is configured...
2224 */
2225
2226 if (code == HTTP_UNAUTHORIZED &&
2227 DefaultEncryption == HTTP_ENCRYPT_REQUIRED &&
2228 strcasecmp(con->http.hostname, "localhost") &&
2229 !con->http.tls)
2230 {
2231 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2232 "cupsdSendError: Encryption before authentication!");
2233 code = HTTP_UPGRADE_REQUIRED;
2234 }
2235#endif /* HAVE_SSL */
2236
ef416fc2 2237 /*
2238 * Put the request in the access_log file...
2239 */
2240
2241 cupsdLogRequest(con, code);
2242
2243 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendError: %d code=%d (%s)",
2244 con->http.fd, code, httpStatus(code));
2245
2246 /*
2247 * To work around bugs in some proxies, don't use Keep-Alive for some
2248 * error messages...
f7deaa1a 2249 *
2250 * Kerberos authentication doesn't work without Keep-Alive, so
2251 * never disable it in that case.
ef416fc2 2252 */
2253
5bd77a73 2254 if (code >= HTTP_BAD_REQUEST && con->http.auth_type != CUPSD_AUTH_NEGOTIATE)
ef416fc2 2255 con->http.keep_alive = HTTP_KEEPALIVE_OFF;
2256
2257 /*
2258 * Send an error message back to the client. If the error code is a
2259 * 400 or 500 series, make sure the message contains some text, too!
2260 */
2261
f899b121 2262 if (!cupsdSendHeader(con, code, NULL, auth_type))
ef416fc2 2263 return (0);
2264
2265#ifdef HAVE_SSL
2266 if (code == HTTP_UPGRADE_REQUIRED)
2267 if (httpPrintf(HTTP(con), "Connection: Upgrade\r\n") < 0)
2268 return (0);
2269
2270 if (httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0)
2271 return (0);
2272#endif /* HAVE_SSL */
2273
f7deaa1a 2274 if (con->http.version >= HTTP_1_1 &&
2275 con->http.keep_alive == HTTP_KEEPALIVE_OFF)
ef416fc2 2276 {
2277 if (httpPrintf(HTTP(con), "Connection: close\r\n") < 0)
2278 return (0);
2279 }
2280
2281 if (code >= HTTP_BAD_REQUEST)
2282 {
2283 /*
2284 * Send a human-readable error message.
2285 */
2286
80ca4592 2287 char message[4096], /* Message for user */
2288 urltext[1024], /* URL redirection text */
2289 redirect[1024]; /* Redirection link */
ef416fc2 2290 const char *text; /* Status-specific text */
2291
80ca4592 2292
2293 redirect[0] = '\0';
2294
ef416fc2 2295 if (code == HTTP_UNAUTHORIZED)
2296 text = _cupsLangString(con->language,
2297 _("Enter your username and password or the "
2298 "root username and password to access this "
f7deaa1a 2299 "page. If you are using Kerberos authentication, "
2300 "make sure you have a valid Kerberos ticket."));
ef416fc2 2301 else if (code == HTTP_UPGRADE_REQUIRED)
80ca4592 2302 {
2303 text = urltext;
2304
2305 snprintf(urltext, sizeof(urltext),
2306 _cupsLangString(con->language,
2307 _("You must access this page using the URL "
2308 "<A HREF=\"https://%s:%d%s\">"
2309 "https://%s:%d%s</A>.")),
2310 con->servername, con->serverport, con->uri,
2311 con->servername, con->serverport, con->uri);
2312
2313 snprintf(redirect, sizeof(redirect),
b86bc4cf 2314 "<META HTTP-EQUIV=\"Refresh\" "
2315 "CONTENT=\"3;URL=https://%s:%d%s\">\n",
80ca4592 2316 con->servername, con->serverport, con->uri);
2317 }
ef416fc2 2318 else
2319 text = "";
2320
2321 snprintf(message, sizeof(message),
2322 "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" "
2323 "\"http://www.w3.org/TR/REC-html40/loose.dtd\">\n"
2324 "<HTML>\n"
2325 "<HEAD>\n"
2326 "\t<META HTTP-EQUIV=\"Content-Type\" "
2327 "CONTENT=\"text/html; charset=utf-8\">\n"
2328 "\t<TITLE>%d %s</TITLE>\n"
2329 "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" "
2330 "HREF=\"/cups.css\">\n"
80ca4592 2331 "%s"
ef416fc2 2332 "</HEAD>\n"
2333 "<BODY>\n"
2334 "<H1>%d %s</H1>\n"
2335 "<P>%s</P>\n"
2336 "</BODY>\n"
2337 "</HTML>\n",
80ca4592 2338 code, httpStatus(code), redirect, code, httpStatus(code), text);
ef416fc2 2339
2340 if (httpPrintf(HTTP(con), "Content-Type: text/html; charset=utf-8\r\n") < 0)
2341 return (0);
2342 if (httpPrintf(HTTP(con), "Content-Length: %d\r\n",
2343 (int)strlen(message)) < 0)
2344 return (0);
2345 if (httpPrintf(HTTP(con), "\r\n") < 0)
2346 return (0);
2347 if (httpPrintf(HTTP(con), "%s", message) < 0)
2348 return (0);
2349 }
2350 else if (httpPrintf(HTTP(con), "\r\n") < 0)
2351 return (0);
2352
07725fee 2353 if (cupsdFlushHeader(con) < 0)
2354 return (0);
d09495fa 2355
ef416fc2 2356 con->http.state = HTTP_WAITING;
2357
2358 return (1);
2359}
2360
2361
ef416fc2 2362/*
2363 * 'cupsdSendHeader()' - Send an HTTP request.
2364 */
2365
2366int /* O - 1 on success, 0 on failure */
f899b121 2367cupsdSendHeader(
2368 cupsd_client_t *con, /* I - Client to send to */
2369 http_status_t code, /* I - HTTP status code */
2370 char *type, /* I - MIME type of document */
2371 int auth_type) /* I - Type of authentication */
ef416fc2 2372{
5a738aea
MS		 2373 char auth_str[1024]; /* Authorization string */
2374#ifdef HAVE_GSSAPI
2375 static char *gss_buf = NULL; /* Kerberos auth data buffer */
2376 static int gss_bufsize = 0; /* Size of Kerberos auth data buffer */
2377#endif /* HAVE_GSSAPI */
f7deaa1a 2378
2379
4744bd90 2380 /*
2381 * Send the HTTP status header...
2382 */
2383
b423cd4c 2384 if (code == HTTP_CONTINUE)
2385 {
4744bd90 2386 /*
2387 * 100-continue doesn't send any headers...
2388 */
2389
07725fee 2390 return (httpPrintf(HTTP(con), "HTTP/%d.%d 100 Continue\r\n\r\n",
2391 con->http.version / 100, con->http.version % 100) > 0);
b423cd4c 2392 }
2393
07725fee 2394 httpFlushWrite(HTTP(con));
2395
2396 con->http.data_encoding = HTTP_ENCODE_FIELDS;
2397
2398 if (httpPrintf(HTTP(con), "HTTP/%d.%d %d %s\r\n", con->http.version / 100,
2399 con->http.version % 100, code, httpStatus(code)) < 0)
2400 return (0);
ef416fc2 2401 if (httpPrintf(HTTP(con), "Date: %s\r\n", httpGetDateString(time(NULL))) < 0)
2402 return (0);
2403 if (ServerHeader)
2404 if (httpPrintf(HTTP(con), "Server: %s\r\n", ServerHeader) < 0)
2405 return (0);
2406 if (con->http.keep_alive && con->http.version >= HTTP_1_0)
2407 {
2408 if (httpPrintf(HTTP(con), "Connection: Keep-Alive\r\n") < 0)
2409 return (0);
2410 if (httpPrintf(HTTP(con), "Keep-Alive: timeout=%d\r\n",
2411 KeepAliveTimeout) < 0)
2412 return (0);
2413 }
2414 if (code == HTTP_METHOD_NOT_ALLOWED)
2415 if (httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST\r\n") < 0)
2416 return (0);
2417
2418 if (code == HTTP_UNAUTHORIZED)
2419 {
5bd77a73 2420 if (auth_type == CUPSD_AUTH_NONE)
f899b121 2421 {
5bd77a73 2422 if (!con->best || con->best->type <= CUPSD_AUTH_NONE)
f899b121 2423 auth_type = DefaultAuthType;
2424 else
2425 auth_type = con->best->type;
2426 }
f7deaa1a 2427
2428 auth_str[0] = '\0';
2429
5bd77a73 2430 if (auth_type == CUPSD_AUTH_BASIC || auth_type == CUPSD_AUTH_BASICDIGEST)
f7deaa1a 2431 strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str));
5bd77a73 2432 else if (auth_type == CUPSD_AUTH_DIGEST)
f7deaa1a 2433 snprintf(auth_str, sizeof(auth_str), "Digest realm=\"CUPS\", nonce=\"%s\"",
2434 con->http.hostname);
2435#ifdef HAVE_GSSAPI
5bd77a73 2436 else if (auth_type == CUPSD_AUTH_NEGOTIATE && con->gss_output_token.length == 0)
f7deaa1a 2437 strlcpy(auth_str, "Negotiate", sizeof(auth_str));
2438#endif /* HAVE_GSSAPI */
2439
2440#ifdef HAVE_AUTHORIZATION_H
5bd77a73 2441 if (con->best && auth_type != CUPSD_AUTH_NEGOTIATE)
ef416fc2 2442 {
f7deaa1a 2443 int i; /* Looping var */
2444 char *auth_key; /* Auth key buffer */
2445 size_t auth_size; /* Size of remaining buffer */
2446
2447
2448 auth_key = auth_str + strlen(auth_str);
2449 auth_size = sizeof(auth_str) - (auth_key - auth_str);
2450
2451 for (i = 0; i < con->best->num_names; i ++)
2452 {
2453 if (!strncasecmp(con->best->names[i], "@AUTHKEY(", 9))
2454 {
2455 snprintf(auth_key, auth_size, ", authkey=\"%s\"",
2456 con->best->names[i] + 9);
2457 /* end parenthesis is stripped in conf.c */
2458 break;
2459 }
2460 else if (!strcasecmp(con->best->names[i], "@SYSTEM") &&
2461 SystemGroupAuthKey)
2462 {
2463 snprintf(auth_key, auth_size, ", authkey=\"%s\"", SystemGroupAuthKey);
2464 break;
2465 }
2466 }
ef416fc2 2467 }
f7deaa1a 2468#endif /* HAVE_AUTHORIZATION_H */
2469
bc44d920 2470 if (auth_str[0])
2471 {
355e94dc 2472 cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendHeader: WWW-Authenticate: %s",
bc44d920 2473 auth_str);
2474
2475 if (httpPrintf(HTTP(con), "WWW-Authenticate: %s\r\n", auth_str) < 0)
2476 return (0);
2477 }
ef416fc2 2478 }
2479
f7deaa1a 2480#ifdef HAVE_GSSAPI
2481 /*
2482 * WWW-Authenticate: Negotiate can be included even for
2483 * non-401 replies...
2484 */
2485
5a738aea 2486 if (con->gss_output_token.length > 0 && con->gss_output_token.length <= 65536)
f7deaa1a 2487 {
f7deaa1a 2488 OM_uint32 minor_status; /* Minor status code */
5a738aea
MS		 2489 int bufsize; /* Size of output token buffer */
2490
2491
2492 bufsize = con->gss_output_token.length * 4 / 3 + 2;
2493
2494 if (bufsize > gss_bufsize)
2495 {
2496 char *buf; /* New buffer */
2497
f7deaa1a 2498
5a738aea 2499 bufsize = (bufsize + 1023) & 1023;/* Round up */
f7deaa1a 2500
5a738aea
MS		 2501 if (gss_buf)
2502 buf = realloc(gss_buf, bufsize);
2503 else
2504 buf = malloc(bufsize);
2505
2506 if (!buf)
2507 {
2508 cupsdLogMessage(CUPSD_LOG_ERROR,
2509 "Unable to allocate %d bytes for Kerberos credentials!",
2510 bufsize);
2511 return (0);
2512 }
2513
2514 gss_buf = buf;
2515 gss_bufsize = bufsize;
2516 }
2517
2518 httpEncode64_2(gss_buf, gss_bufsize,
2519 con->gss_output_token.value,
f7deaa1a 2520 con->gss_output_token.length);
2521 gss_release_buffer(&minor_status, &con->gss_output_token);
2522
355e94dc 2523 cupsdLogMessage(CUPSD_LOG_DEBUG,
5a738aea 2524 "cupsdSendHeader: WWW-Authenticate: Negotiate %s", gss_buf);
355e94dc 2525
5a738aea
MS		 2526 if (httpPrintf(HTTP(con), "WWW-Authenticate: Negotiate %s\r\n",
2527 gss_buf) < 0)
f7deaa1a 2528 return (0);
2529 }
5a738aea
MS		 2530 else if (con->gss_output_token.length > 65536)
2531 {
2532 cupsdLogMessage(CUPSD_LOG_ERROR,
2533 "Kerberos credentials larger than 64k (%d)!",
ac884b6a 2534 (int)con->gss_output_token.length);
5a738aea
MS		 2535 return (0);
2536 }
f7deaa1a 2537#endif /* HAVE_GSSAPI */
2538
e1d6a774 2539 if (con->language && strcmp(con->language->language, "C"))
ef416fc2 2540 {
2541 if (httpPrintf(HTTP(con), "Content-Language: %s\r\n",
2542 con->language->language) < 0)
2543 return (0);
2544 }
2545
e1d6a774 2546 if (type)
ef416fc2 2547 {
2548 if (!strcmp(type, "text/html"))
2549 {
2550 if (httpPrintf(HTTP(con),
2551 "Content-Type: text/html; charset=utf-8\r\n") < 0)
2552 return (0);
2553 }
2554 else if (httpPrintf(HTTP(con), "Content-Type: %s\r\n", type) < 0)
2555 return (0);
2556 }
2557
2558 return (1);
2559}
2560
2561
2562/*
2563 * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs.
2564 */
2565
2566void
2567cupsdUpdateCGI(void)
2568{
2569 char *ptr, /* Pointer to end of line in buffer */
2570 message[1024]; /* Pointer to message text */
2571 int loglevel; /* Log level for message */
2572
2573
2574 while ((ptr = cupsdStatBufUpdate(CGIStatusBuffer, &loglevel,
2575 message, sizeof(message))) != NULL)
2576 if (!strchr(CGIStatusBuffer->buffer, '\n'))
2577 break;
2578
d09495fa 2579 if (ptr == NULL && !CGIStatusBuffer->bufused)
ef416fc2 2580 {
2581 /*
2582 * Fatal error on pipe - should never happen!
2583 */
2584
2585 cupsdLogMessage(CUPSD_LOG_CRIT,
2586 "cupsdUpdateCGI: error reading from CGI error pipe - %s",
2587 strerror(errno));
2588 }
2589}
2590
2591
2592/*
2593 * 'cupsdWriteClient()' - Write data to a client as needed.
2594 */
2595
f7deaa1a 2596void
ef416fc2 2597cupsdWriteClient(cupsd_client_t *con) /* I - Client connection */
2598{
2599 int bytes; /* Number of bytes written */
2600 char buf[16385]; /* Data buffer */
2601 char *bufptr; /* Pointer into buffer */
2602 ipp_state_t ipp_state; /* IPP state value */
2603
2604
2605#ifdef DEBUG
2606 cupsdLogMessage(CUPSD_LOG_DEBUG2,
b94498cf 2607 "cupsdWriteClient(con=%p) %d response=%p(%d), file=%d "
ef416fc2 2608 "pipe_pid=%d state=%d",
ae71f5de
MS		 2609 con, con->http.fd, con->response,
2610 con->response ? con->response->state : -1,
b94498cf 2611 con->file, con->pipe_pid, con->http.state);
ef416fc2 2612#endif /* DEBUG */
2613
2614 if (con->http.state != HTTP_GET_SEND &&
2615 con->http.state != HTTP_POST_SEND)
f7deaa1a 2616 return;
2617
2618 if (con->pipe_pid)
2619 {
2620 /*
2621 * Make sure we select on the CGI output...
2622 */
2623
f899b121 2624 cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con);
f7deaa1a 2625
2626 if (!con->file_ready)
2627 {
2628 /*
2629 * Try again later when there is CGI output available...
2630 */
2631
2632 cupsdRemoveSelect(con->http.fd);
2633 return;
2634 }
2635
2636 con->file_ready = 0;
2637 }
ef416fc2 2638
b94498cf 2639 if (con->response && con->response->state != IPP_DATA)
ef416fc2 2640 {
07725fee 2641 ipp_state = ippWrite(HTTP(con), con->response);
b94498cf 2642 bytes = ipp_state != IPP_ERROR &&
2643 (con->file >= 0 || ipp_state != IPP_DATA);
ef416fc2 2644 }
2645 else if ((bytes = read(con->file, buf, sizeof(buf) - 1)) > 0)
2646 {
2647 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2648 "cupsdWriteClient: Read %d bytes from file %d...",
2649 bytes, con->file);
2650
2651 if (con->pipe_pid && !con->got_fields)
2652 {
2653 /*
2654 * Inspect the data for Content-Type and other fields.
2655 */
2656
2657 buf[bytes] = '\0';
2658
2659 for (bufptr = buf; !con->got_fields && *bufptr; bufptr ++)
2660 if (*bufptr == '\n')
2661 {
2662 /*
2663 * Send line to client...
2664 */
2665
2666 if (bufptr > buf && bufptr[-1] == '\r')
2667 bufptr[-1] = '\0';
2668 *bufptr++ = '\0';
2669
2670 cupsdLogMessage(CUPSD_LOG_DEBUG2, "Script header: %s", buf);
2671
2672 if (!con->sent_header)
2673 {
2674 /*
2675 * Handle redirection and CGI status codes...
2676 */
2677
2678 if (!strncasecmp(buf, "Location:", 9))
d6ae789d 2679 {
5bd77a73 2680 cupsdSendHeader(con, HTTP_SEE_OTHER, NULL, CUPSD_AUTH_NONE);
07725fee 2681 con->sent_header = 2;
2682
d6ae789d 2683 if (httpPrintf(HTTP(con), "Content-Length: 0\r\n") < 0)
f7deaa1a 2684 return;
d6ae789d 2685 }
ef416fc2 2686 else if (!strncasecmp(buf, "Status:", 7))
07725fee 2687 {
5bd77a73 2688 cupsdSendError(con, (http_status_t)atoi(buf + 7), CUPSD_AUTH_NONE);
07725fee 2689 con->sent_header = 2;
2690 }
ef416fc2 2691 else
4744bd90 2692 {
5bd77a73 2693 cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE);
07725fee 2694 con->sent_header = 1;
ef416fc2 2695
4744bd90 2696 if (con->http.version == HTTP_1_1)
2697 {
4744bd90 2698 if (httpPrintf(HTTP(con), "Transfer-Encoding: chunked\r\n") < 0)
f7deaa1a 2699 return;
4744bd90 2700 }
2701 }
ef416fc2 2702 }
2703
2704 if (strncasecmp(buf, "Status:", 7))
2705 httpPrintf(HTTP(con), "%s\r\n", buf);
2706
2707 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d %s",
2708 con->http.fd, buf);
2709
2710 /*
2711 * Update buffer...
2712 */
2713
2714 bytes -= (bufptr - buf);
2715 memmove(buf, bufptr, bytes + 1);
2716 bufptr = buf - 1;
2717
2718 /*
2719 * See if the line was empty...
2720 */
2721
2722 if (con->field_col == 0)
d09495fa 2723 {
ef416fc2 2724 con->got_fields = 1;
d09495fa 2725
07725fee 2726 if (cupsdFlushHeader(con) < 0)
2727 {
2728 cupsdCloseClient(con);
f7deaa1a 2729 return;
07725fee 2730 }
d09495fa 2731
2732 if (con->http.version == HTTP_1_1)
2733 con->http.data_encoding = HTTP_ENCODE_CHUNKED;
2734 }
ef416fc2 2735 else
2736 con->field_col = 0;
2737 }
2738 else if (*bufptr != '\r')
2739 con->field_col ++;
2740
2741 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2742 "cupsdWriteClient: %d bytes=%d, got_fields=%d",
2743 con->http.fd, bytes, con->got_fields);
2744
2745 if (bytes > 0 && !con->got_fields)
2746 {
2747 /*
2748 * Remaining text needs to go out...
2749 */
2750
2751 httpPrintf(HTTP(con), "%s", buf);
2752
2753 con->http.activity = time(NULL);
f7deaa1a 2754 return;
ef416fc2 2755 }
2756 else if (bytes == 0)
ef416fc2 2757 con->http.activity = time(NULL);
ef416fc2 2758 }
2759
4744bd90 2760 if (bytes > 0)
ef416fc2 2761 {
4744bd90 2762 if (httpWrite2(HTTP(con), buf, bytes) < 0)
2763 {
2764 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2765 "cupsdWriteClient: %d Write of %d bytes failed!",
2766 con->http.fd, bytes);
ef416fc2 2767
4744bd90 2768 cupsdCloseClient(con);
f7deaa1a 2769 return;
4744bd90 2770 }
ef416fc2 2771
ae71f5de
MS		 2772 httpFlushWrite(HTTP(con));
2773
4744bd90 2774 con->bytes += bytes;
ef416fc2 2775
4744bd90 2776 if (con->http.state == HTTP_WAITING)
2777 bytes = 0;
2778 }
ef416fc2 2779 }
2780
2781 if (bytes <= 0)
2782 {
2783 cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d bytes < 0",
2784 con->http.fd);
2785
2786 cupsdLogRequest(con, HTTP_OK);
2787
2788 httpFlushWrite(HTTP(con));
2789
07725fee 2790 if (con->http.data_encoding == HTTP_ENCODE_CHUNKED && con->sent_header == 1)
ef416fc2 2791 {
07725fee 2792 if (httpWrite2(HTTP(con), "", 0) < 0)
ef416fc2 2793 {
2794 cupsdCloseClient(con);
f7deaa1a 2795 return;
ef416fc2 2796 }
2797 }
2798
2799 con->http.state = HTTP_WAITING;
2800
f7deaa1a 2801 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con);
ef416fc2 2802
2803 if (con->file >= 0)
2804 {
f7deaa1a 2805 cupsdRemoveSelect(con->file);
ef416fc2 2806
2807 if (con->pipe_pid)
2808 cupsdEndProcess(con->pipe_pid, 0);
2809
2810 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2811 "cupsdWriteClient: %d Closing data file %d.",
2812 con->http.fd, con->file);
2813
2814 close(con->file);
2815 con->file = -1;
2816 con->pipe_pid = 0;
2817 }
2818
2819 if (con->filename)
2820 {
2821 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2822 "cupsdWriteClient: %d Removing temp file %s",
2823 con->http.fd, con->filename);
2824 unlink(con->filename);
2825 cupsdClearString(&con->filename);
2826 }
2827
2abf387c 2828 if (con->request)
ef416fc2 2829 {
2830 ippDelete(con->request);
2831 con->request = NULL;
2832 }
2833
2abf387c 2834 if (con->response)
ef416fc2 2835 {
2836 ippDelete(con->response);
2837 con->response = NULL;
2838 }
2839
2840 cupsdClearString(&con->command);
2841 cupsdClearString(&con->options);
b86bc4cf 2842 cupsdClearString(&con->query_string);
ef416fc2 2843
2844 if (!con->http.keep_alive)
2845 {
2846 cupsdCloseClient(con);
f7deaa1a 2847 return;
ef416fc2 2848 }
2849 }
2850
2851 con->http.activity = time(NULL);
f7deaa1a 2852}
ef416fc2 2853
f7deaa1a 2854
e1d6a774 2855/*
2856 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
2857 */
2858
2859static int /* O - 1 if modified since */
2860check_if_modified(
2861 cupsd_client_t *con, /* I - Client connection */
2862 struct stat *filestats) /* I - File information */
2863{
2864 char *ptr; /* Pointer into field */
2865 time_t date; /* Time/date value */
2866 off_t size; /* Size/length value */
2867
2868
2869 size = 0;
2870 date = 0;
2871 ptr = con->http.fields[HTTP_FIELD_IF_MODIFIED_SINCE];
2872
2873 if (*ptr == '\0')
2874 return (1);
2875
2876 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2877 "check_if_modified: %d If-Modified-Since=\"%s\"",
2878 con->http.fd, ptr);
2879
2880 while (*ptr != '\0')
2881 {
2882 while (isspace(*ptr) || *ptr == ';')
2883 ptr ++;
2884
2885 if (strncasecmp(ptr, "length=", 7) == 0)
2886 {
2887 ptr += 7;
2888 size = strtoll(ptr, NULL, 10);
2889
2890 while (isdigit(*ptr))
2891 ptr ++;
2892 }
2893 else if (isalpha(*ptr))
2894 {
2895 date = httpGetDateTime(ptr);
2896 while (*ptr != '\0' && *ptr != ';')
2897 ptr ++;
2898 }
e53920b9 2899 else
2900 ptr ++;
e1d6a774 2901 }
2902
2903 cupsdLogMessage(CUPSD_LOG_DEBUG2,
2904 "check_if_modified: %d sizes=" CUPS_LLFMT ","
2905 CUPS_LLFMT " dates=%d,%d",
2906 con->http.fd, CUPS_LLCAST size,
2907 CUPS_LLCAST filestats->st_size, (int)date,
2908 (int)filestats->st_mtime);
2909
2910 return ((size != filestats->st_size && size != 0) ||
2911 (date < filestats->st_mtime && date != 0) ||
2912 (size == 0 && date == 0));
2913}
2914
2915
80ca4592 2916#ifdef HAVE_SSL
e1d6a774 2917/*
2918 * 'encrypt_client()' - Enable encryption for the client...
2919 */
2920
2921static int /* O - 1 on success, 0 on error */
2922encrypt_client(cupsd_client_t *con) /* I - Client to encrypt */
2923{
80ca4592 2924# ifdef HAVE_LIBSSL
e1d6a774 2925 SSL_CTX *context; /* Context for encryption */
2926 SSL *conn; /* Connection for encryption */
411affcf 2927 BIO *bio; /* BIO data */
e1d6a774 2928 unsigned long error; /* Error code */
2929
2930
8ca02f3c 2931 /*
2932 * Verify that we have a certificate...
2933 */
2934
2935 if (access(ServerKey, 0) || access(ServerCertificate, 0))
2936 {
2937 /*
2938 * Nope, make a self-signed certificate...
2939 */
2940
b86bc4cf 2941 if (!make_certificate(con))
8ca02f3c 2942 return (0);
2943 }
2944
e1d6a774 2945 /*
2946 * Create the SSL context and accept the connection...
2947 */
2948
2949 context = SSL_CTX_new(SSLv23_server_method());
2950
2951 SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */
2952 SSL_CTX_use_PrivateKey_file(context, ServerKey, SSL_FILETYPE_PEM);
2953 SSL_CTX_use_certificate_file(context, ServerCertificate, SSL_FILETYPE_PEM);
2954
411affcf 2955 bio = BIO_new(_httpBIOMethods());
2956 BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)HTTP(con));
2957
e1d6a774 2958 conn = SSL_new(context);
411affcf 2959 SSL_set_bio(conn, bio, bio);
e1d6a774 2960
e1d6a774 2961 if (SSL_accept(conn) != 1)
2962 {
2963 cupsdLogMessage(CUPSD_LOG_ERROR,
2964 "encrypt_client: Unable to encrypt connection from %s!",
2965 con->http.hostname);
2966
2967 while ((error = ERR_get_error()) != 0)
2968 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s",
2969 ERR_error_string(error, NULL));
2970
2971 SSL_CTX_free(context);
2972 SSL_free(conn);
2973 return (0);
2974 }
2975
2976 cupsdLogMessage(CUPSD_LOG_DEBUG,
2977 "encrypt_client: %d Connection from %s now encrypted.",
2978 con->http.fd, con->http.hostname);
2979
2980 con->http.tls = conn;
2981 return (1);
f7deaa1a 2982
80ca4592 2983# elif defined(HAVE_GNUTLS)
e1d6a774 2984 http_tls_t *conn; /* TLS session object */
2985 int error; /* Error code */
2986 gnutls_certificate_server_credentials *credentials;
2987 /* TLS credentials */
2988
2989
2990 /*
2991 * Verify that we have a certificate...
2992 */
2993
2994 if (access(ServerKey, 0) || access(ServerCertificate, 0))
2995 {
2996 /*
2997 * Nope, make a self-signed certificate...
2998 */
2999
b86bc4cf 3000 if (!make_certificate(con))
8ca02f3c 3001 return (0);
e1d6a774 3002 }
3003
3004 /*
3005 * Create the SSL object and perform the SSL handshake...
3006 */
3007
89d46774 3008 conn = (http_tls_t *)malloc(sizeof(http_tls_t));
e1d6a774 3009
3010 if (conn == NULL)
3011 return (0);
3012
3013 credentials = (gnutls_certificate_server_credentials *)
3014 malloc(sizeof(gnutls_certificate_server_credentials));
3015 if (credentials == NULL)
3016 {
3017 cupsdLogMessage(CUPSD_LOG_ERROR,
3018 "encrypt_client: Unable to encrypt connection from %s!",
3019 con->http.hostname);
3020 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", strerror(errno));
3021
3022 free(conn);
3023 return (0);
3024 }
3025
3026 gnutls_certificate_allocate_credentials(credentials);
f7deaa1a 3027 gnutls_certificate_set_x509_key_file(*credentials, ServerCertificate,
e1d6a774 3028 ServerKey, GNUTLS_X509_FMT_PEM);
3029
3030 gnutls_init(&(conn->session), GNUTLS_SERVER);
3031 gnutls_set_default_priority(conn->session);
3032 gnutls_credentials_set(conn->session, GNUTLS_CRD_CERTIFICATE, *credentials);
411affcf 3033 gnutls_transport_set_ptr(conn->session, (gnutls_transport_ptr)HTTP(con));
3034 gnutls_transport_set_pull_function(conn->session, _httpReadGNUTLS);
3035 gnutls_transport_set_push_function(conn->session, _httpWriteGNUTLS);
e1d6a774 3036
3037 error = gnutls_handshake(conn->session);
3038
3039 if (error != GNUTLS_E_SUCCESS)
3040 {
3041 cupsdLogMessage(CUPSD_LOG_ERROR,
3042 "encrypt_client: Unable to encrypt connection from %s!",
3043 con->http.hostname);
3044 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s",
3045 gnutls_strerror(error));
3046
3047 gnutls_deinit(conn->session);
3048 gnutls_certificate_free_credentials(*credentials);
3049 free(conn);
3050 free(credentials);
3051 return (0);
3052 }
3053
3054 cupsdLogMessage(CUPSD_LOG_DEBUG,
3055 "encrypt_client: %d Connection from %s now encrypted.",
3056 con->http.fd, con->http.hostname);
3057
3058 conn->credentials = credentials;
3059 con->http.tls = conn;
3060 return (1);
3061
80ca4592 3062# elif defined(HAVE_CDSASSL)
89d46774 3063 OSStatus error; /* Error code */
3064 http_tls_t *conn; /* CDSA connection information */
e1d6a774 3065
3066
89d46774 3067 if ((conn = (http_tls_t *)malloc(sizeof(http_tls_t))) == NULL)
3068 return (0);
e1d6a774 3069
89d46774 3070 error = 0;
3071 conn->session = NULL;
b86bc4cf 3072 conn->certsArray = get_cdsa_certificate(con);
e1d6a774 3073
8ca02f3c 3074 if (!conn->certsArray)
3075 {
3076 /*
3077 * No keychain (yet), make a self-signed certificate...
3078 */
3079
b86bc4cf 3080 if (make_certificate(con))
3081 conn->certsArray = get_cdsa_certificate(con);
8ca02f3c 3082 }
3083
89d46774 3084 if (!conn->certsArray)
e1d6a774 3085 {
3086 cupsdLogMessage(CUPSD_LOG_ERROR,
411affcf 3087 "encrypt_client: Could not find signing key in keychain "
e1d6a774 3088 "\"%s\"", ServerCertificate);
3089 error = errSSLBadCert; /* errSSLBadConfiguration is a better choice, but not available on 10.2.x */
3090 }
3091
3092 if (!error)
89d46774 3093 error = SSLNewContext(true, &conn->session);
e1d6a774 3094
3095 if (!error)
89d46774 3096 error = SSLSetIOFuncs(conn->session, _httpReadCDSA, _httpWriteCDSA);
3097
3098 if (!error)
ed486911 3099 error = SSLSetProtocolVersionEnabled(conn->session, kSSLProtocol2, false);
e1d6a774 3100
3101 if (!error)
411affcf 3102 error = SSLSetConnection(conn->session, HTTP(con));
e1d6a774 3103
3104 if (!error)
89d46774 3105 error = SSLSetAllowsExpiredCerts(conn->session, true);
e1d6a774 3106
3107 if (!error)
89d46774 3108 error = SSLSetAllowsAnyRoot(conn->session, true);
ef416fc2 3109
89d46774 3110 if (!error)
3111 error = SSLSetCertificate(conn->session, conn->certsArray);
ef416fc2 3112
e1d6a774 3113 if (!error)
3114 {
3115 /*
3116 * Perform SSL/TLS handshake
3117 */
ef416fc2 3118
89d46774 3119 while ((error = SSLHandshake(conn->session)) == errSSLWouldBlock)
e1d6a774 3120 usleep(1000);
3121 }
ef416fc2 3122
e1d6a774 3123 if (error)
3124 {
3125 cupsdLogMessage(CUPSD_LOG_ERROR,
3126 "encrypt_client: Unable to encrypt connection from %s!",
3127 con->http.hostname);
ef416fc2 3128
ed486911 3129 cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s (%d)",
3130 cssmErrorString(error), (int)error);
ef416fc2 3131
e1d6a774 3132 con->http.error = error;
3133 con->http.status = HTTP_ERROR;
ef416fc2 3134
89d46774 3135 if (conn->session)
3136 SSLDisposeContext(conn->session);
3137
3138 if (conn->certsArray)
3139 CFRelease(conn->certsArray);
3140
3141 free(conn);
ef416fc2 3142
e1d6a774 3143 return (0);
ef416fc2 3144 }
3145
e1d6a774 3146 cupsdLogMessage(CUPSD_LOG_DEBUG,
3147 "encrypt_client: %d Connection from %s now encrypted.",
3148 con->http.fd, con->http.hostname);
ef416fc2 3149
e1d6a774 3150 con->http.tls = conn;
3151 return (1);
3152
80ca4592 3153# endif /* HAVE_LIBSSL */
ef416fc2 3154}
80ca4592 3155#endif /* HAVE_SSL */
ef416fc2 3156
3157
3158#ifdef HAVE_CDSASSL
3159/*
b86bc4cf 3160 * 'get_cdsa_certificate()' - Get a SSL/TLS certificate from the System keychain.
ef416fc2 3161 */
3162
b86bc4cf 3163static CFArrayRef /* O - Array of certificates */
3164get_cdsa_certificate(cupsd_client_t *con) /* I - Client connection */
ef416fc2 3165{
3166 OSStatus err; /* Error info */
b86bc4cf 3167 SecKeychainRef keychain; /* Keychain reference */
3168 SecIdentitySearchRef search; /* Search reference */
ef416fc2 3169 SecIdentityRef identity; /* Identity */
b86bc4cf 3170 CFArrayRef certificates = NULL;
3171 /* Certificate array */
ef416fc2 3172
3173
b86bc4cf 3174 if ((err = SecKeychainOpen(ServerCertificate, &keychain)))
3175 {
3176 cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot open keychain \"%s\", %s",
3177 ServerCertificate, cssmErrorString(err));
3178 return (NULL);
3179 }
ef416fc2 3180
b86bc4cf 3181# if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY
3182 /*
3183 * Use a policy to search for valid certificates who's common name matches the
3184 * servername...
3185 */
3186
3187 SecPolicySearchRef policy_search; /* Policy search ref */
3188 SecPolicyRef policy; /* Policy ref */
3189 CSSM_DATA options; /* Policy options */
3190 CSSM_APPLE_TP_SSL_OPTIONS
3191 ssl_options; /* SSL Option for hostname */
3192
3193
3194 if ((err = SecPolicySearchCreate(CSSM_CERT_X_509v3, &CSSMOID_APPLE_TP_SSL,
3195 NULL, &policy_search)))
ef416fc2 3196 {
b86bc4cf 3197 cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot create a policy search reference");
3198 CFRelease(keychain);
3199 return (NULL);
3200 }
ef416fc2 3201
b86bc4cf 3202 if ((err = SecPolicySearchCopyNext(policy_search, &policy)))
3203 {
3204 cupsdLogMessage(CUPSD_LOG_ERROR,
3205 "Cannot find a policy to use for searching");
3206 CFRelease(keychain);
3207 CFRelease(policy_search);
3208 return (NULL);
3209 }
ef416fc2 3210
b86bc4cf 3211 memset(&ssl_options, 0, sizeof(ssl_options));
3212 ssl_options.Version = CSSM_APPLE_TP_SSL_OPTS_VERSION;
3213 ssl_options.ServerName = con->servername;
3214 ssl_options.ServerNameLen = strlen(con->servername);
ef416fc2 3215
b86bc4cf 3216 options.Data = (uint8 *)&ssl_options;
3217 options.Length = sizeof(ssl_options);
3218
3219 if ((err = SecPolicySetValue(policy, &options)))
3220 {
3221 cupsdLogMessage(CUPSD_LOG_ERROR,
3222 "Cannot set policy value to use for searching");
3223 CFRelease(keychain);
3224 CFRelease(policy_search);
3225 return (NULL);
3226 }
3227
3228 err = SecIdentitySearchCreateWithPolicy(policy, NULL, CSSM_KEYUSE_SIGN,
3229 keychain, FALSE, &search);
3230# else
3231 /*
3232 * Assume there is exactly one SecIdentity in the keychain...
3233 */
3234
3235 err = SecIdentitySearchCreate(keychain, CSSM_KEYUSE_SIGN, &search);
3236# endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */
3237
3238 if (err)
3239 cupsdLogMessage(CUPSD_LOG_DEBUG,
3240 "Cannot create keychain search reference: %s",
3241 cssmErrorString(err));
3242 else
3243 {
3244 if ((err = SecIdentitySearchCopyNext(search, &identity)))
3245 {
3246 cupsdLogMessage(CUPSD_LOG_DEBUG,
ef416fc2 3247 "Cannot find signing key in keychain \"%s\", error %d",
3248 ServerCertificate, (int)err);
b86bc4cf 3249 }
3250 else
3251 {
3252 if (CFGetTypeID(identity) != SecIdentityGetTypeID())
3253 cupsdLogMessage(CUPSD_LOG_ERROR,
3254 "SecIdentitySearchCopyNext CFTypeID failure!");
ef416fc2 3255 else
3256 {
b86bc4cf 3257 if ((certificates = CFArrayCreate(NULL, (const void **)&identity,
3258 1, &kCFTypeArrayCallBacks)) == NULL)
3259 cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot create certificate array");
ef416fc2 3260 }
3261
b86bc4cf 3262 CFRelease(identity);
ef416fc2 3263 }
3264
b86bc4cf 3265 CFRelease(search);
ef416fc2 3266 }
3267
b86bc4cf 3268# if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY
3269 CFRelease(policy);
3270 CFRelease(policy_search);
3271# endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */
3272
3273 return (certificates);
ef416fc2 3274}
3275#endif /* HAVE_CDSASSL */
3276
3277
3278/*
3279 * 'get_file()' - Get a filename and state info.
3280 */
3281
3282static char * /* O - Real filename */
3283get_file(cupsd_client_t *con, /* I - Client connection */
3284 struct stat *filestats, /* O - File information */
3285 char *filename, /* IO - Filename buffer */
3286 int len) /* I - Buffer length */
3287{
3288 int status; /* Status of filesystem calls */
3289 char *ptr; /* Pointer info filename */
3290 int plen; /* Remaining length after pointer */
db1f069b 3291 char language[7]; /* Language subdirectory, if any */
ef416fc2 3292
3293
3294 /*
f7deaa1a 3295 * Figure out the real filename...
ef416fc2 3296 */
3297
db1f069b
MS		 3298 language[0] = '\0';
3299
ef416fc2 3300 if (!strncmp(con->uri, "/ppd/", 5))
3301 snprintf(filename, len, "%s%s", ServerRoot, con->uri);
f7deaa1a 3302 else if (!strncmp(con->uri, "/rss/", 5) && !strchr(con->uri + 5, '/'))
3303 snprintf(filename, len, "%s/rss/%s", CacheDir, con->uri + 5);
ef416fc2 3304 else if (!strncmp(con->uri, "/admin/conf/", 12))
3305 snprintf(filename, len, "%s%s", ServerRoot, con->uri + 11);
3306 else if (!strncmp(con->uri, "/admin/log/", 11))
3307 {
2e4ff8af 3308 if (!strncmp(con->uri + 11, "access_log", 10) && AccessLog[0] == '/')
ef416fc2 3309 strlcpy(filename, AccessLog, len);
2e4ff8af 3310 else if (!strncmp(con->uri + 11, "error_log", 9) && ErrorLog[0] == '/')
ef416fc2 3311 strlcpy(filename, ErrorLog, len);
2e4ff8af 3312 else if (!strncmp(con->uri + 11, "page_log", 8) && PageLog[0] == '/')
ef416fc2 3313 strlcpy(filename, PageLog, len);
3314 else
3315 return (NULL);
3316 }
d6ae789d 3317 else if (con->language)
db1f069b
MS		 3318 {
3319 snprintf(language, sizeof(language), "/%s", con->language->language);
3320 snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri);
3321 }
ef416fc2 3322 else
3323 snprintf(filename, len, "%s%s", DocumentRoot, con->uri);
3324
3325 if ((ptr = strchr(filename, '?')) != NULL)
3326 *ptr = '\0';
3327
3328 /*
3329 * Grab the status for this language; if there isn't a language-specific file
3330 * then fallback to the default one...
3331 */
3332
db1f069b 3333 if ((status = stat(filename, filestats)) != 0 && language[0] &&
d6ae789d 3334 strncmp(con->uri, "/ppd/", 5) &&
3335 strncmp(con->uri, "/admin/conf/", 12) &&
3336 strncmp(con->uri, "/admin/log/", 11))
ef416fc2 3337 {
3338 /*
d6ae789d 3339 * Drop the country code...
ef416fc2 3340 */
3341
db1f069b
MS		 3342 language[3] = '\0';
3343 snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri);
d6ae789d 3344
3345 if ((ptr = strchr(filename, '?')) != NULL)
3346 *ptr = '\0';
3347
3348 if ((status = stat(filename, filestats)) != 0)
ef416fc2 3349 {
d6ae789d 3350 /*
3351 * Drop the language prefix and try the root directory...
3352 */
3353
db1f069b 3354 language[0] = '\0';
ef416fc2 3355 snprintf(filename, len, "%s%s", DocumentRoot, con->uri);
3356
3357 if ((ptr = strchr(filename, '?')) != NULL)
3358 *ptr = '\0';
3359
3360 status = stat(filename, filestats);
3361 }
3362 }
3363
3364 /*
3365 * If we're found a directory, get the index.html file instead...
3366 */
3367
3368 if (!status && S_ISDIR(filestats->st_mode))
3369 {
db1f069b
MS		 3370 /*
3371 * Make sure the URI ends with a slash...
3372 */
ef416fc2 3373
db1f069b
MS		 3374 if (con->uri[strlen(con->uri) - 1] != '/')
3375 strlcat(con->uri, "/", sizeof(con->uri));
ef416fc2 3376
db1f069b
MS		 3377 /*
3378 * Find the directory index file, trying every language...
3379 */
ef416fc2 3380
db1f069b 3381 do
ef416fc2 3382 {
db1f069b
MS		 3383 if (status && language[0])
3384 {
3385 /*
3386 * Try a different language subset...
3387 */
3388
3389 if (language[3])
3390 language[0] = '\0'; /* Strip country code */
3391 else
3392 language[0] = '\0'; /* Strip language */
3393 }
3394
3395 /*
3396 * Look for the index file...
3397 */
3398
3399 snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri);
3400
3401 if ((ptr = strchr(filename, '?')) != NULL)
3402 *ptr = '\0';
3403
3404 ptr = filename + strlen(filename);
3405 plen = len - (ptr - filename);
3406
3407 strlcpy(ptr, "index.html", plen);
ef416fc2 3408 status = stat(filename, filestats);
db1f069b
MS		 3409
3410#ifdef HAVE_JAVA
3411 if (status)
3412 {
3413 strlcpy(ptr, "index.class", plen);
3414 status = stat(filename, filestats);
3415 }
ef416fc2 3416#endif /* HAVE_JAVA */
3417
3418#ifdef HAVE_PERL
db1f069b
MS		 3419 if (status)
3420 {
3421 strlcpy(ptr, "index.pl", plen);
3422 status = stat(filename, filestats);
3423 }
ef416fc2 3424#endif /* HAVE_PERL */
3425
3426#ifdef HAVE_PHP
db1f069b
MS		 3427 if (status)
3428 {
3429 strlcpy(ptr, "index.php", plen);
3430 status = stat(filename, filestats);
3431 }
ef416fc2 3432#endif /* HAVE_PHP */
3433
3434#ifdef HAVE_PYTHON
db1f069b
MS		 3435 if (status)
3436 {
3437 strlcpy(ptr, "index.pyc", plen);
3438 status = stat(filename, filestats);
3439 }
ef416fc2 3440
db1f069b
MS		 3441 if (status)
3442 {
3443 strlcpy(ptr, "index.py", plen);
3444 status = stat(filename, filestats);
3445 }
ef416fc2 3446#endif /* HAVE_PYTHON */
db1f069b
MS		 3447
3448 }
3449 while (status && language[0]);
ef416fc2 3450 }
3451
3452 cupsdLogMessage(CUPSD_LOG_DEBUG2, "get_file: %d filename=%s size=%d",
3453 con->http.fd, filename,
3454 status ? -1 : (int)filestats->st_size);
3455
3456 if (!status)
3457 con->http.data_remaining = (int)filestats->st_size;
3458
3459 if (status)
3460 return (NULL);
3461 else
3462 return (filename);
3463}
3464
3465
3466/*
3467 * 'install_conf_file()' - Install a configuration file.
3468 */
3469
3470static http_status_t /* O - Status */
3471install_conf_file(cupsd_client_t *con) /* I - Connection */
3472{
3473 cups_file_t *in, /* Input file */
3474 *out; /* Output file */
3475 char buffer[1024]; /* Copy buffer */
3476 int bytes; /* Number of bytes */
3477 char conffile[1024], /* Configuration filename */
3478 newfile[1024], /* New config filename */
3479 oldfile[1024]; /* Old config filename */
3480 struct stat confinfo; /* Config file info */
3481
3482
3483 /*
3484 * First construct the filenames...
3485 */
3486
3487 snprintf(conffile, sizeof(conffile), "%s%s", ServerRoot, con->uri + 11);
3488 snprintf(newfile, sizeof(newfile), "%s%s.N", ServerRoot, con->uri + 11);
3489 snprintf(oldfile, sizeof(oldfile), "%s%s.O", ServerRoot, con->uri + 11);
3490
3491 cupsdLogMessage(CUPSD_LOG_INFO, "Installing config file \"%s\"...", conffile);
3492
3493 /*
3494 * Get the owner, group, and permissions of the configuration file.
3495 * If it doesn't exist, assign it to the User and Group in the
3496 * cupsd.conf file with mode 0640 permissions.
3497 */
3498
3499 if (stat(conffile, &confinfo))
3500 {
3501 confinfo.st_uid = User;
3502 confinfo.st_gid = Group;
3503 confinfo.st_mode = ConfigFilePerm;
3504 }
3505
3506 /*
3507 * Open the request file and new config file...
3508 */
3509
3510 if ((in = cupsFileOpen(con->filename, "rb")) == NULL)
3511 {
3512 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open request file \"%s\" - %s",
3513 con->filename, strerror(errno));
3514 return (HTTP_SERVER_ERROR);
3515 }
3516
3517 if ((out = cupsFileOpen(newfile, "wb")) == NULL)
3518 {
3519 cupsFileClose(in);
3520 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open config file \"%s\" - %s",
3521 newfile, strerror(errno));
3522 return (HTTP_SERVER_ERROR);
3523 }
3524
3525 fchmod(cupsFileNumber(out), confinfo.st_mode);
3526 fchown(cupsFileNumber(out), confinfo.st_uid, confinfo.st_gid);
3527
3528 /*
3529 * Copy from the request to the new config file...
3530 */
3531
3532 while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0)
3533 if (cupsFileWrite(out, buffer, bytes) < bytes)
3534 {
3535 cupsdLogMessage(CUPSD_LOG_ERROR,
3536 "Unable to copy to config file \"%s\" - %s",
3537 newfile, strerror(errno));
3538
3539 cupsFileClose(in);
3540 cupsFileClose(out);
3541 unlink(newfile);
3542
3543 return (HTTP_SERVER_ERROR);
3544 }
3545
3546 /*
3547 * Close the files...
3548 */
3549
3550 cupsFileClose(in);
3551 if (cupsFileClose(out))
3552 {
3553 cupsdLogMessage(CUPSD_LOG_ERROR,
3554 "Error file closing config file \"%s\" - %s",
3555 newfile, strerror(errno));
3556
3557 unlink(newfile);
3558
3559 return (HTTP_SERVER_ERROR);
3560 }
3561
3562 /*
3563 * Remove the request file...
3564 */
3565
3566 unlink(con->filename);
3567 cupsdClearString(&con->filename);
3568
3569 /*
3570 * Unlink the old backup, rename the current config file to the backup
3571 * filename, and rename the new config file to the config file name...
3572 */
3573
3574 if (unlink(oldfile))
3575 if (errno != ENOENT)
3576 {
3577 cupsdLogMessage(CUPSD_LOG_ERROR,
3578 "Unable to remove backup config file \"%s\" - %s",
3579 oldfile, strerror(errno));
3580
3581 unlink(newfile);
3582
3583 return (HTTP_SERVER_ERROR);
3584 }
3585
3586 if (rename(conffile, oldfile))
3587 if (errno != ENOENT)
3588 {
3589 cupsdLogMessage(CUPSD_LOG_ERROR,
3590 "Unable to rename old config file \"%s\" - %s",
3591 conffile, strerror(errno));
3592
3593 unlink(newfile);
3594
3595 return (HTTP_SERVER_ERROR);
3596 }
3597
3598 if (rename(newfile, conffile))
3599 {
3600 cupsdLogMessage(CUPSD_LOG_ERROR,
3601 "Unable to rename new config file \"%s\" - %s",
3602 newfile, strerror(errno));
3603
3604 rename(oldfile, conffile);
3605 unlink(newfile);
3606
3607 return (HTTP_SERVER_ERROR);
3608 }
3609
3610 /*
3611 * If the cupsd.conf file was updated, set the NeedReload flag...
3612 */
3613
3614 if (!strcmp(con->uri, "/admin/conf/cupsd.conf"))
3615 NeedReload = RELOAD_CUPSD;
3616 else
3617 NeedReload = RELOAD_ALL;
3618
3619 ReloadTime = time(NULL);
3620
3621 /*
3622 * Return that the file was created successfully...
3623 */
3624
3625 return (HTTP_CREATED);
3626}
3627
3628
e1d6a774 3629/*
3630 * 'is_cgi()' - Is the resource a CGI script/program?
3631 */
3632
3633static int /* O - 1 = CGI, 0 = file */
3634is_cgi(cupsd_client_t *con, /* I - Client connection */
3635 const char *filename, /* I - Real filename */
3636 struct stat *filestats, /* I - File information */
3637 mime_type_t *type) /* I - MIME type */
3638{
3639 const char *options; /* Options on URL */
3640
3641
3642 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3643 "is_cgi(con=%p, filename=\"%s\", filestats=%p, type=%s/%s)\n",
3644 con, filename, filestats, type ? type->super : "unknown",
3645 type ? type->type : "unknown");
3646
3647 /*
3648 * Get the options, if any...
3649 */
3650
3651 if ((options = strchr(con->uri, '?')) != NULL)
b86bc4cf 3652 {
e1d6a774 3653 options ++;
3654
b86bc4cf 3655 if (strchr(options, '='))
3656 cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", options);
3657 }
3658
e1d6a774 3659 /*
3660 * Check for known types...
3661 */
3662
3663 if (!type || strcasecmp(type->super, "application"))
3664 {
3665 cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0...");
3666 return (0);
3667 }
3668
3669 if (!strcasecmp(type->type, "x-httpd-cgi") &&
3670 (filestats->st_mode & 0111))
3671 {
3672 /*
3673 * "application/x-httpd-cgi" is a CGI script.
3674 */
3675
3676 cupsdSetString(&con->command, filename);
3677
3678 filename = strrchr(filename, '/') + 1; /* Filename always absolute */
3679
3680 cupsdSetString(&con->options, options);
3681
3682 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3683 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3684 con->command, con->options);
3685
3686 return (1);
3687 }
3688#ifdef HAVE_JAVA
3689 else if (!strcasecmp(type->type, "x-httpd-java"))
3690 {
3691 /*
3692 * "application/x-httpd-java" is a Java servlet.
3693 */
3694
3695 cupsdSetString(&con->command, CUPS_JAVA);
3696
3697 if (options)
b94498cf 3698 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3699 else
b94498cf 3700 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3701
3702 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3703 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3704 con->command, con->options);
3705
3706 return (1);
3707 }
3708#endif /* HAVE_JAVA */
3709#ifdef HAVE_PERL
3710 else if (!strcasecmp(type->type, "x-httpd-perl"))
3711 {
3712 /*
3713 * "application/x-httpd-perl" is a Perl page.
3714 */
3715
3716 cupsdSetString(&con->command, CUPS_PERL);
3717
3718 if (options)
b94498cf 3719 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3720 else
b94498cf 3721 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3722
3723 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3724 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3725 con->command, con->options);
3726
3727 return (1);
3728 }
3729#endif /* HAVE_PERL */
3730#ifdef HAVE_PHP
3731 else if (!strcasecmp(type->type, "x-httpd-php"))
3732 {
3733 /*
3734 * "application/x-httpd-php" is a PHP page.
3735 */
3736
3737 cupsdSetString(&con->command, CUPS_PHP);
3738
3739 if (options)
b94498cf 3740 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3741 else
b94498cf 3742 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3743
3744 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3745 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3746 con->command, con->options);
3747
3748 return (1);
3749 }
3750#endif /* HAVE_PHP */
3751#ifdef HAVE_PYTHON
3752 else if (!strcasecmp(type->type, "x-httpd-python"))
3753 {
3754 /*
3755 * "application/x-httpd-python" is a Python page.
3756 */
3757
3758 cupsdSetString(&con->command, CUPS_PYTHON);
3759
3760 if (options)
b94498cf 3761 cupsdSetStringf(&con->options, " %s %s", filename, options);
e1d6a774 3762 else
b94498cf 3763 cupsdSetStringf(&con->options, " %s", filename);
e1d6a774 3764
3765 cupsdLogMessage(CUPSD_LOG_DEBUG2,
3766 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3767 con->command, con->options);
3768
3769 return (1);
3770 }
3771#endif /* HAVE_PYTHON */
3772
3773 cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0...");
3774
3775 return (0);
3776}
3777
3778
ef416fc2 3779/*
3780 * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. "..").
3781 */
3782
3783static int /* O - 0 if relative, 1 if absolute */
3784is_path_absolute(const char *path) /* I - Input path */
3785{
3786 /*
3787 * Check for a leading slash...
3788 */
3789
3790 if (path[0] != '/')
3791 return (0);
3792
3793 /*
3794 * Check for "/.." in the path...
3795 */
3796
3797 while ((path = strstr(path, "/..")) != NULL)
3798 {
3799 if (!path[3] || path[3] == '/')
3800 return (0);
3801
3802 path ++;
3803 }
3804
3805 /*
3806 * If we haven't found any relative paths, return 1 indicating an
3807 * absolute path...
3808 */
3809
3810 return (1);
3811}
3812
3813
8ca02f3c 3814#ifdef HAVE_SSL
4744bd90 3815/*
3816 * 'make_certificate()' - Make a self-signed SSL/TLS certificate.
3817 */
3818
8ca02f3c 3819static int /* O - 1 on success, 0 on failure */
b86bc4cf 3820make_certificate(cupsd_client_t *con) /* I - Client connection */
4744bd90 3821{
8ca02f3c 3822#if defined(HAVE_LIBSSL) && defined(HAVE_WAITPID)
d09495fa 3823 int pid, /* Process ID of command */
3824 status; /* Status of command */
3825 char command[1024], /* Command */
f7deaa1a 3826 *argv[12], /* Command-line arguments */
d09495fa 3827 *envp[MAX_ENV + 1], /* Environment variables */
3828 home[1024], /* HOME environment variable */
3829 infofile[1024], /* Type-in information for cert */
3830 seedfile[1024]; /* Random number seed file */
3831 int envc, /* Number of environment variables */
3832 bytes; /* Bytes written */
3833 cups_file_t *fp; /* Seed/info file */
3834 int infofd; /* Info file descriptor */
8ca02f3c 3835
3836
3837 /*
d09495fa 3838 * Run the "openssl" command to seed the random number generator and
3839 * generate a self-signed certificate that is good for 10 years:
3840 *
3841 * openssl rand -rand seedfile 1
8ca02f3c 3842 *
3843 * openssl req -new -x509 -keyout ServerKey \
3844 * -out ServerCertificate -days 3650 -nodes
d09495fa 3845 *
3846 * The seeding step is crucial in ensuring that the openssl command
3847 * does not block on systems without sufficient entropy...
8ca02f3c 3848 */
3849
3850 if (!cupsFileFind("openssl", getenv("PATH"), 1, command, sizeof(command)))
3851 {
3852 cupsdLogMessage(CUPSD_LOG_ERROR,
3853 "No SSL certificate and openssl command not found!");
3854 return (0);
3855 }
3856
d09495fa 3857 if (access("/dev/urandom", 0))
3858 {
3859 /*
3860 * If the system doesn't provide /dev/urandom, then any random source
3861 * will probably be blocking-style, so generate some random data to
3862 * use as a seed for the certificate. Note that we have already
3863 * seeded the random number generator in cupsdInitCerts()...
3864 */
3865
3866 cupsdLogMessage(CUPSD_LOG_INFO,
3867 "Seeding the random number generator...");
3868
3869 snprintf(home, sizeof(home), "HOME=%s", TempDir);
3870
3871 /*
3872 * Write the seed file...
3873 */
3874
3875 if ((fp = cupsTempFile2(seedfile, sizeof(seedfile))) == NULL)
3876 {
3877 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create seed file %s - %s",
3878 seedfile, strerror(errno));
3879 return (0);
3880 }
3881
3882 for (bytes = 0; bytes < 262144; bytes ++)
3883 cupsFilePutChar(fp, random());
3884
3885 cupsFileClose(fp);
3886
3887 /*
3888 * Run the openssl command to seed its random number generator...
3889 */
3890
3891 argv[0] = "openssl";
3892 argv[1] = "rand";
3893 argv[2] = "-rand";
3894 argv[3] = seedfile;
3895 argv[4] = "1";
3896 argv[5] = NULL;
3897
3898 envc = cupsdLoadEnv(envp, MAX_ENV);
3899 envp[envc++] = home;
3900 envp[envc] = NULL;
3901
a4924f6c
MS		 3902 if (!cupsdStartProcess(command, argv, envp, -1, -1, -1, -1, -1, 1, NULL,
3903 &pid))
d09495fa 3904 {
3905 unlink(seedfile);
3906 return (0);
3907 }
3908
3909 while (waitpid(pid, &status, 0) < 0)
3910 if (errno != EINTR)
3911 {
3912 status = 1;
3913 break;
3914 }
3915
3916 cupsdFinishProcess(pid, command, sizeof(command));
3917
3918 /*
3919 * Remove the seed file, as it is no longer needed...
3920 */
3921
3922 unlink(seedfile);
3923
3924 if (status)
3925 {
3926 if (WIFEXITED(status))
3927 cupsdLogMessage(CUPSD_LOG_ERROR,
3928 "Unable to seed random number generator - "
3929 "the openssl command stopped with status %d!",
3930 WEXITSTATUS(status));
3931 else
3932 cupsdLogMessage(CUPSD_LOG_ERROR,
3933 "Unable to seed random number generator - "
3934 "the openssl command crashed on signal %d!",
3935 WTERMSIG(status));
3936
3937 return (0);
3938 }
3939 }
3940
3941 /*
3942 * Create a file with the certificate information fields...
3943 *
3944 * Note: This assumes that the default questions are asked by the openssl
3945 * command...
3946 */
3947
3948 if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL)
3949 {
3950 cupsdLogMessage(CUPSD_LOG_ERROR,
3951 "Unable to create certificate information file %s - %s",
3952 infofile, strerror(errno));
3953 return (0);
3954 }
3955
3956 cupsFilePrintf(fp, ".\n.\n.\n%s\n.\n%s\n%s\n",
3957 ServerName, ServerName, ServerAdmin);
3958 cupsFileClose(fp);
3959
8ca02f3c 3960 cupsdLogMessage(CUPSD_LOG_INFO,
3961 "Generating SSL server key and certificate...");
3962
3963 argv[0] = "openssl";
3964 argv[1] = "req";
3965 argv[2] = "-new";
3966 argv[3] = "-x509";
3967 argv[4] = "-keyout";
3968 argv[5] = ServerKey;
3969 argv[6] = "-out";
3970 argv[7] = ServerCertificate;
3971 argv[8] = "-days";
3972 argv[9] = "3650";
3973 argv[10] = "-nodes";
3974 argv[11] = NULL;
3975
3976 cupsdLoadEnv(envp, MAX_ENV);
3977
d09495fa 3978 infofd = open(infofile, O_RDONLY);
3979
a4924f6c
MS		 3980 if (!cupsdStartProcess(command, argv, envp, infofd, -1, -1, -1, -1, 1, NULL,
3981 &pid))
d09495fa 3982 {
3983 close(infofd);
3984 unlink(infofile);
8ca02f3c 3985 return (0);
d09495fa 3986 }
3987
3988 close(infofd);
3989 unlink(infofile);
8ca02f3c 3990
3991 while (waitpid(pid, &status, 0) < 0)
3992 if (errno != EINTR)
3993 {
3994 status = 1;
3995 break;
3996 }
3997
3998 cupsdFinishProcess(pid, command, sizeof(command));
3999
4000 if (status)
4001 {
4002 if (WIFEXITED(status))
4003 cupsdLogMessage(CUPSD_LOG_ERROR,
4004 "Unable to create SSL server key and certificate - "
4005 "the openssl command stopped with status %d!",
4006 WEXITSTATUS(status));
4007 else
4008 cupsdLogMessage(CUPSD_LOG_ERROR,
4009 "Unable to create SSL server key and certificate - "
4010 "the openssl command crashed on signal %d!",
4011 WTERMSIG(status));
4012 }
4013 else
4014 {
4015 cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...",
4016 ServerKey);
4017 cupsdLogMessage(CUPSD_LOG_INFO,
4018 "Created SSL server certificate file \"%s\"...",
4019 ServerCertificate);
4020 }
4021
4022 return (!status);
4023
4024#elif defined(HAVE_GNUTLS)
4744bd90 4025 gnutls_x509_crt crt; /* Self-signed certificate */
4026 gnutls_x509_privkey key; /* Encryption key */
4027 cups_lang_t *language; /* Default language info */
4028 cups_file_t *fp; /* Key/cert file */
4029 unsigned char buffer[8192]; /* Buffer for x509 data */
4030 size_t bytes; /* Number of bytes of data */
4031 unsigned char serial[4]; /* Serial number buffer */
4032 time_t curtime; /* Current time */
4033 int result; /* Result of GNU TLS calls */
4034
4035
4036 /*
4037 * Create the encryption key...
4038 */
4039
8ca02f3c 4040 cupsdLogMessage(CUPSD_LOG_INFO, "Generating SSL server key...");
4744bd90 4041
4042 gnutls_x509_privkey_init(&key);
4043 gnutls_x509_privkey_generate(key, GNUTLS_PK_RSA, 2048, 0);
4044
4045 /*
4046 * Save it...
4047 */
4048
4049 bytes = sizeof(buffer);
4050
4051 if ((result = gnutls_x509_privkey_export(key, GNUTLS_X509_FMT_PEM,
4052 buffer, &bytes)) < 0)
4053 {
8ca02f3c 4054 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to export SSL server key - %s",
4744bd90 4055 gnutls_strerror(result));
4056 gnutls_x509_privkey_deinit(key);
8ca02f3c 4057 return (0);
4744bd90 4058 }
4059 else if ((fp = cupsFileOpen(ServerKey, "w")) != NULL)
4060 {
4061 cupsFileWrite(fp, (char *)buffer, bytes);
4062 cupsFileClose(fp);
4063
8ca02f3c 4064 cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...",
4744bd90 4065 ServerKey);
4066 }
4067 else
4068 {
4069 cupsdLogMessage(CUPSD_LOG_ERROR,
8ca02f3c 4070 "Unable to create SSL server key file \"%s\" - %s",
4744bd90 4071 ServerKey, strerror(errno));
4072 gnutls_x509_privkey_deinit(key);
8ca02f3c 4073 return (0);
4744bd90 4074 }
4075
4076 /*
4077 * Create the self-signed certificate...
4078 */
4079
8ca02f3c 4080 cupsdLogMessage(CUPSD_LOG_INFO, "Generating self-signed SSL certificate...");
4744bd90 4081
4082 language = cupsLangDefault();
4083 curtime = time(NULL);
4084 serial[0] = curtime >> 24;
4085 serial[1] = curtime >> 16;
4086 serial[2] = curtime >> 8;
4087 serial[3] = curtime;
4088
4089 gnutls_x509_crt_init(&crt);
4090 if (strlen(language->language) == 5)
4091 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0,
4092 language->language + 3, 2);
4093 else
4094 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0,
4095 "US", 2);
4096 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COMMON_NAME, 0,
4097 ServerName, strlen(ServerName));
4098 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATION_NAME, 0,
4099 ServerName, strlen(ServerName));
4100 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME,
4101 0, "Unknown", 7);
4102 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME, 0,
4103 "Unknown", 7);
4104 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_LOCALITY_NAME, 0,
4105 "Unknown", 7);
4106 gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_PKCS9_EMAIL, 0,
4107 ServerAdmin, strlen(ServerAdmin));
4108 gnutls_x509_crt_set_key(crt, key);
4109 gnutls_x509_crt_set_serial(crt, serial, sizeof(serial));
4110 gnutls_x509_crt_set_activation_time(crt, curtime);
4111 gnutls_x509_crt_set_expiration_time(crt, curtime + 10 * 365 * 86400);
4112 gnutls_x509_crt_set_ca_status(crt, 0);
4113 gnutls_x509_crt_set_subject_alternative_name(crt, GNUTLS_SAN_DNSNAME,
4114 ServerName);
4115 gnutls_x509_crt_set_key_purpose_oid(crt, GNUTLS_KP_TLS_WWW_SERVER, 0);
4116 gnutls_x509_crt_set_key_usage(crt, GNUTLS_KEY_KEY_ENCIPHERMENT);
4117 gnutls_x509_crt_set_version(crt, 3);
4118
4119 bytes = sizeof(buffer);
4120 if (gnutls_x509_crt_get_key_id(crt, 0, buffer, &bytes) >= 0)
4121 gnutls_x509_crt_set_subject_key_id(crt, buffer, bytes);
4122
4123 gnutls_x509_crt_sign(crt, crt, key);
4124
4125 /*
4126 * Save it...
4127 */
4128
4129 bytes = sizeof(buffer);
4130 if ((result = gnutls_x509_crt_export(crt, GNUTLS_X509_FMT_PEM,
4131 buffer, &bytes)) < 0)
4132 cupsdLogMessage(CUPSD_LOG_ERROR,
8ca02f3c 4133 "Unable to export SSL server certificate - %s",
4744bd90 4134 gnutls_strerror(result));
4135 else if ((fp = cupsFileOpen(ServerCertificate, "w")) != NULL)
4136 {
4137 cupsFileWrite(fp, (char *)buffer, bytes);
4138 cupsFileClose(fp);
4139
4140 cupsdLogMessage(CUPSD_LOG_INFO,
8ca02f3c 4141 "Created SSL server certificate file \"%s\"...",
4744bd90 4142 ServerCertificate);
4143 }
4144 else
4145 cupsdLogMessage(CUPSD_LOG_ERROR,
8ca02f3c 4146 "Unable to create SSL server certificate file \"%s\" - %s",
4744bd90 4147 ServerCertificate, strerror(errno));
4148
4149 /*
4150 * Cleanup...
4151 */
4152
4153 gnutls_x509_crt_deinit(crt);
4154 gnutls_x509_privkey_deinit(key);
8ca02f3c 4155
4156 return (1);
4157
4158#elif defined(HAVE_CDSASSL) && defined(HAVE_WAITPID)
b86bc4cf 4159 int pid, /* Process ID of command */
4160 status; /* Status of command */
4161 char command[1024], /* Command */
4162 *argv[4], /* Command-line arguments */
4163 *envp[MAX_ENV + 1], /* Environment variables */
4164 keychain[1024], /* Keychain argument */
4165 infofile[1024]; /* Type-in information for cert */
4166 cups_file_t *fp; /* Seed/info file */
4167 int infofd; /* Info file descriptor */
8ca02f3c 4168
4169
4170 /*
b86bc4cf 4171 * Run the "certtool" command to generate a self-signed certificate...
8ca02f3c 4172 */
4173
4174 if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command)))
4175 {
4176 cupsdLogMessage(CUPSD_LOG_ERROR,
4177 "No SSL certificate and certtool command not found!");
4178 return (0);
4179 }
4180
b86bc4cf 4181 /*
4182 * Create a file with the certificate information fields...
4183 *
4184 * Note: This assumes that the default questions are asked by the certtool
4185 * command...
4186 */
4187
4188 if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL)
4189 {
4190 cupsdLogMessage(CUPSD_LOG_ERROR,
4191 "Unable to create certificate information file %s - %s",
4192 infofile, strerror(errno));
4193 return (0);
4194 }
4195
4196 cupsFilePrintf(fp, "%s\nr\n\ny\nb\ns\ny\n%s\n\n\n\n\n%s\ny\n",
4197 con->servername, con->servername, ServerAdmin);
4198 cupsFileClose(fp);
4199
8ca02f3c 4200 cupsdLogMessage(CUPSD_LOG_INFO,
4201 "Generating SSL server key and certificate...");
4202
4203 snprintf(keychain, sizeof(keychain), "k=%s", ServerCertificate);
4204
4205 argv[0] = "certtool";
4206 argv[1] = "c";
b86bc4cf 4207 argv[2] = keychain;
4208 argv[3] = NULL;
8ca02f3c 4209
4210 cupsdLoadEnv(envp, MAX_ENV);
4211
b86bc4cf 4212 infofd = open(infofile, O_RDONLY);
4213
a4924f6c
MS		 4214 if (!cupsdStartProcess(command, argv, envp, infofd, -1, -1, -1, -1, 1, NULL,
4215 &pid))
b86bc4cf 4216 {
4217 close(infofd);
4218 unlink(infofile);
8ca02f3c 4219 return (0);
b86bc4cf 4220 }
4221
4222 close(infofd);
4223 unlink(infofile);
8ca02f3c 4224
4225 while (waitpid(pid, &status, 0) < 0)
4226 if (errno != EINTR)
4227 {
4228 status = 1;
4229 break;
4230 }
4231
4232 cupsdFinishProcess(pid, command, sizeof(command));
4233
4234 if (status)
4235 {
4236 if (WIFEXITED(status))
4237 cupsdLogMessage(CUPSD_LOG_ERROR,
4238 "Unable to create SSL server key and certificate - "
4239 "the certtool command stopped with status %d!",
4240 WEXITSTATUS(status));
4241 else
4242 cupsdLogMessage(CUPSD_LOG_ERROR,
4243 "Unable to create SSL server key and certificate - "
4244 "the certtool command crashed on signal %d!",
4245 WTERMSIG(status));
4246 }
4247 else
4248 {
4249 cupsdLogMessage(CUPSD_LOG_INFO,
4250 "Created SSL server certificate file \"%s\"...",
4251 ServerCertificate);
4252 }
4253
4254 return (!status);
4255
4256#else
4257 return (0);
4258#endif /* HAVE_LIBSSL && HAVE_WAITPID */
4744bd90 4259}
8ca02f3c 4260#endif /* HAVE_SSL */
4744bd90 4261
4262
ef416fc2 4263/*
4264 * 'pipe_command()' - Pipe the output of a command to the remote client.
4265 */
4266
4267static int /* O - Process ID */
4268pipe_command(cupsd_client_t *con, /* I - Client connection */
4269 int infile, /* I - Standard input for command */
4270 int *outfile, /* O - Standard output for command */
4271 char *command, /* I - Command to run */
4272 char *options, /* I - Options for command */
4273 int root) /* I - Run as root? */
4274{
4275 int i; /* Looping var */
4276 int pid; /* Process ID */
b423cd4c 4277 char *commptr, /* Command string pointer */
4278 commch; /* Command string character */
ef416fc2 4279 char *uriptr; /* URI string pointer */
4280 int fds[2]; /* Pipe FDs */
4281 int argc; /* Number of arguments */
4282 int envc; /* Number of environment variables */
4283 char argbuf[10240], /* Argument buffer */
4284 *argv[100], /* Argument strings */
b94498cf 4285 *envp[MAX_ENV + 20]; /* Environment variables */
5bd77a73 4286 char auth_type[256], /* CUPSD_AUTH_TYPE environment variable */
b94498cf 4287 content_length[1024], /* CONTENT_LENGTH environment variable */
ef416fc2 4288 content_type[1024], /* CONTENT_TYPE environment variable */
4289 http_cookie[32768], /* HTTP_COOKIE environment variable */
f7deaa1a 4290 http_referer[1024], /* HTTP_REFERER environment variable */
ef416fc2 4291 http_user_agent[1024], /* HTTP_USER_AGENT environment variable */
4292 lang[1024], /* LANG environment variable */
b423cd4c 4293 path_info[1024], /* PATH_INFO environment variable */
ef416fc2 4294 remote_addr[1024], /* REMOTE_ADDR environment variable */
4295 remote_host[1024], /* REMOTE_HOST environment variable */
4296 remote_user[1024], /* REMOTE_USER environment variable */
b94498cf 4297 script_filename[1024], /* SCRIPT_FILENAME environment variable */
ef416fc2 4298 script_name[1024], /* SCRIPT_NAME environment variable */
4299 server_name[1024], /* SERVER_NAME environment variable */
4300 server_port[1024]; /* SERVER_PORT environment variable */
7dfedb92 4301 ipp_attribute_t *attr; /* attributes-natural-language attribute */
5bd77a73
MS		 4302#ifdef HAVE_GSSAPI
4303 krb5_ccache ccache = NULL; /* Kerberos credentials */
4304 char krb5ccname[1024]; /* KRB5CCNAME environment variable */
4305#endif /* HAVE_GSSAPI */
ef416fc2 4306
4307
4308 /*
4309 * Parse a copy of the options string, which is of the form:
4310 *
b423cd4c 4311 * argument+argument+argument
4312 * ?argument+argument+argument
4313 * param=value&param=value
4314 * ?param=value&param=value
4315 * /name?argument+argument+argument
4316 * /name?param=value&param=value
ef416fc2 4317 *
4318 * If the string contains an "=" character after the initial name,
4319 * then we treat it as a HTTP GET form request and make a copy of
4320 * the remaining string for the environment variable.
4321 *
4322 * The string is always parsed out as command-line arguments, to
4323 * be consistent with Apache...
4324 */
4325
4326 cupsdLogMessage(CUPSD_LOG_DEBUG2,
4327 "pipe_command: command=\"%s\", options=\"%s\"",
f301802f 4328 command, options ? options : "(null)");
ef416fc2 4329
b86bc4cf 4330 argv[0] = command;
ef416fc2 4331
b423cd4c 4332 if (options)
4333 strlcpy(argbuf, options, sizeof(argbuf));
4334 else
4335 argbuf[0] = '\0';
4336
4337 if (argbuf[0] == '/')
ef416fc2 4338 {
4339 /*
b423cd4c 4340 * Found some trailing path information, set PATH_INFO...
ef416fc2 4341 */
4342
b423cd4c 4343 if ((commptr = strchr(argbuf, '?')) == NULL)
4344 commptr = argbuf + strlen(argbuf);
ef416fc2 4345
b423cd4c 4346 commch = *commptr;
4347 *commptr = '\0';
4348 snprintf(path_info, sizeof(path_info), "PATH_INFO=%s", argbuf);
4349 *commptr = commch;
4350 }
4351 else
4352 {
4353 commptr = argbuf;
4354 path_info[0] = '\0';
b94498cf 4355
4356 if (*commptr == ' ')
4357 commptr ++;
b423cd4c 4358 }
ef416fc2 4359
b86bc4cf 4360 if (*commptr == '?' && con->operation == HTTP_GET && !con->query_string)
b423cd4c 4361 {
4362 commptr ++;
b86bc4cf 4363 cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", commptr);
b423cd4c 4364 }
ef416fc2 4365
b423cd4c 4366 argc = 1;
ef416fc2 4367
b423cd4c 4368 if (*commptr)
4369 {
4370 argv[argc ++] = commptr;
ef416fc2 4371
b423cd4c 4372 for (; *commptr && argc < 99; commptr ++)
4373 {
ef416fc2 4374 /*
b423cd4c 4375 * Break arguments whenever we see a + or space...
ef416fc2 4376 */
4377
b423cd4c 4378 if (*commptr == ' ' || *commptr == '+')
4379 {
4380 while (*commptr == ' ' || *commptr == '+')
4381 *commptr++ = '\0';
ef416fc2 4382
b423cd4c 4383 /*
4384 * If we don't have a blank string, save it as another argument...
4385 */
ef416fc2 4386
b423cd4c 4387 if (*commptr)
4388 {
4389 argv[argc] = commptr;
4390 argc ++;
4391 }
4392 else
4393 break;
4394 }
4395 else if (*commptr == '%' && isxdigit(commptr[1] & 255) &&
4396 isxdigit(commptr[2] & 255))
4397 {
4398 /*
4399 * Convert the %xx notation to the individual character.
4400 */
ef416fc2 4401
b423cd4c 4402 if (commptr[1] >= '0' && commptr[1] <= '9')
4403 *commptr = (commptr[1] - '0') << 4;
4404 else
4405 *commptr = (tolower(commptr[1]) - 'a' + 10) << 4;
ef416fc2 4406
b423cd4c 4407 if (commptr[2] >= '0' && commptr[2] <= '9')
4408 *commptr |= commptr[2] - '0';
4409 else
4410 *commptr |= tolower(commptr[2]) - 'a' + 10;
ef416fc2 4411
b423cd4c 4412 _cups_strcpy(commptr + 1, commptr + 3);
ef416fc2 4413
b423cd4c 4414 /*
4415 * Check for a %00 and break if that is the case...
4416 */
ef416fc2 4417
b423cd4c 4418 if (!*commptr)
4419 break;
4420 }
ef416fc2 4421 }
4422 }
4423
4424 argv[argc] = NULL;
4425
ef416fc2 4426 /*
4427 * Setup the environment variables as needed...
4428 */
4429
b94498cf 4430 if (con->username[0])
4431 {
5bd77a73 4432 snprintf(auth_type, sizeof(auth_type), "CUPSD_AUTH_TYPE=%s",
b94498cf 4433 httpGetField(HTTP(con), HTTP_FIELD_AUTHORIZATION));
4434
4435 if ((uriptr = strchr(auth_type + 10, ' ')) != NULL)
4436 *uriptr = '\0';
4437 }
4438 else
4439 auth_type[0] = '\0';
4440
7dfedb92
MS		 4441 if (con->request &&
4442 (attr = ippFindAttribute(con->request, "attributes-natural-language",
4443 IPP_TAG_LANGUAGE)) != NULL)
4444 {
4445 switch (strlen(attr->values[0].string.text))
4446 {
4447 default :
4448 /*
4449 * This is an unknown or badly formatted language code; use
4450 * the POSIX locale...
4451 */
4452
4453 strcpy(lang, "LANG=C");
4454 break;
4455
4456 case 2 :
4457 /*
4458 * Just the language code (ll)...
4459 */
4460
4461 snprintf(lang, sizeof(lang), "LANG=%s.UTF8",
4462 attr->values[0].string.text);
4463 break;
4464
4465 case 5 :
4466 /*
4467 * Language and country code (ll-cc)...
4468 */
4469
4470 snprintf(lang, sizeof(lang), "LANG=%c%c_%c%c.UTF8",
4471 attr->values[0].string.text[0],
4472 attr->values[0].string.text[1],
4473 toupper(attr->values[0].string.text[3] & 255),
4474 toupper(attr->values[0].string.text[4] & 255));
4475 break;
4476 }
4477 }
4478 else if (con->language)
4479 snprintf(lang, sizeof(lang), "LANG=%s.UTF8", con->language->language);
ef416fc2 4480 else
4481 strcpy(lang, "LANG=C");
4482
4483 strcpy(remote_addr, "REMOTE_ADDR=");
4484 httpAddrString(con->http.hostaddr, remote_addr + 12,
4485 sizeof(remote_addr) - 12);
4486
4487 snprintf(remote_host, sizeof(remote_host), "REMOTE_HOST=%s",
4488 con->http.hostname);
4489
4490 snprintf(script_name, sizeof(script_name), "SCRIPT_NAME=%s", con->uri);
4491 if ((uriptr = strchr(script_name, '?')) != NULL)
4492 *uriptr = '\0';
4493
b94498cf 4494 snprintf(script_filename, sizeof(script_filename), "SCRIPT_FILENAME=%s%s",
4495 DocumentRoot, script_name + 12);
4496
ef416fc2 4497 sprintf(server_port, "SERVER_PORT=%d", con->serverport);
4498
4499 snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s",
4500 con->servername);
4501
4502 envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0])));
4503
b94498cf 4504 if (auth_type[0])
4505 envp[envc ++] = auth_type;
4506
ef416fc2 4507 envp[envc ++] = lang;
4508 envp[envc ++] = "REDIRECT_STATUS=1";
b94498cf 4509 envp[envc ++] = "GATEWAY_INTERFACE=CGI/1.1";
ef416fc2 4510 envp[envc ++] = server_name;
4511 envp[envc ++] = server_port;
4512 envp[envc ++] = remote_addr;
4513 envp[envc ++] = remote_host;
4514 envp[envc ++] = script_name;
b94498cf 4515 envp[envc ++] = script_filename;
ef416fc2 4516
b423cd4c 4517 if (path_info[0])
4518 envp[envc ++] = path_info;
4519
ef416fc2 4520 if (con->username[0])
4521 {
4522 snprintf(remote_user, sizeof(remote_user), "REMOTE_USER=%s", con->username);
4523
4524 envp[envc ++] = remote_user;
5bd77a73
MS		 4525
4526 /*
4527 * Save Kerberos credentials, if any...
4528 */
4529
4530#ifdef HAVE_GSSAPI
4531 if (con->gss_have_creds)
4532 {
4533# if !defined(HAVE_KRB5_CC_NEW_UNIQUE) && !defined(HAVE_HEIMDAL)
4534 cupsdLogMessage(CUPSD_LOG_INFO,
4535 "Sorry, your version of Kerberos does not support "
4536 "delegated credentials!");
4537
4538# else
4539 krb5_error_code error; /* Kerberos error code */
4540 OM_uint32 major_status, /* Major status code */
4541 minor_status; /* Minor status code */
4542 krb5_principal principal; /* Kerberos principal */
4543
4544
4545# ifdef __APPLE__
4546 /*
4547 * If the weak-linked GSSAPI/Kerberos library is not present, don't try
4548 * to use it...
4549 */
4550
4551 if (krb5_init_context != NULL)
4552 {
4553# endif /* __APPLE__ */
4554
4555 /*
4556 * We MUST create a file-based cache because memory-based caches are
4557 * only valid for the current process/address space.
4558 *
4559 * Due to various bugs/features in different versions of Kerberos, we
4560 * need either the krb5_cc_new_unique() function or Heimdal's version
4561 * of krb5_cc_gen_new() to create a new FILE: credential cache that
4562 * can be passed to the backend. These functions create a temporary
4563 * file (typically in /tmp) containing the cached credentials, which
4564 * are removed when we have successfully printed a job.
4565 */
4566
4567# ifdef HAVE_KRB5_CC_NEW_UNIQUE
4568 if ((error = krb5_cc_new_unique(KerberosContext, "FILE", NULL,
4569 &ccache)) != 0)
4570# else /* HAVE_HEIMDAL */
4571 if ((error = krb5_cc_gen_new(KerberosContext, &krb5_fcc_ops,
4572 &ccache)) != 0)
4573# endif /* HAVE_KRB5_CC_NEW_UNIQUE */
4574 {
4575 cupsdLogMessage(CUPSD_LOG_ERROR,
4576 "Unable to create new credentials cache (%d/%s)",
4577 error, strerror(errno));
4578 ccache = NULL;
4579 }
4580 else if ((error = krb5_parse_name(KerberosContext, con->username,
4581 &principal)) != 0)
4582 {
4583 cupsdLogMessage(CUPSD_LOG_ERROR,
4584 "Unable to parse kerberos username (%d/%s)", error,
4585 strerror(errno));
4586 krb5_cc_destroy(KerberosContext, ccache);
4587 ccache = NULL;
4588 }
4589 else if ((error = krb5_cc_initialize(KerberosContext, ccache,
4590 principal)))
4591 {
4592 cupsdLogMessage(CUPSD_LOG_ERROR,
4593 "Unable to initialize credentials cache (%d/%s)", error,
4594 strerror(errno));
4595 krb5_cc_destroy(KerberosContext, ccache);
4596 krb5_free_principal(KerberosContext, principal);
4597 ccache = NULL;
4598 }
4599 else
4600 {
4601 krb5_free_principal(KerberosContext, principal);
4602
4603 /*
4604 * Copy the user's credentials to the new cache file...
4605 */
4606
4607 major_status = gss_krb5_copy_ccache(&minor_status,
4608 con->gss_delegated_cred, ccache);
4609
4610 if (GSS_ERROR(major_status))
4611 {
4612 cupsdLogGSSMessage(CUPSD_LOG_ERROR, major_status, minor_status,
4613 "Unable to import client credentials cache");
4614 krb5_cc_destroy(KerberosContext, ccache);
4615 ccache = NULL;
4616 }
4617 else
4618 {
4619 /*
4620 * Add the KRB5CCNAME environment variable to the job so that the
4621 * backend can use the credentials when printing.
4622 */
4623
4624 snprintf(krb5ccname, sizeof(krb5ccname), "KRB5CCNAME=FILE:%s",
4625 krb5_cc_get_name(KerberosContext, ccache));
4626 envp[envc++] = krb5ccname;
4627
4628 if (!RunUser)
4629 chown(krb5_cc_get_name(KerberosContext, ccache), User, Group);
4630 }
4631 }
4632# ifdef __APPLE__
4633 }
4634# endif /* __APPLE__ */
4635# endif /* HAVE_KRB5_CC_NEW_UNIQUE || HAVE_HEIMDAL */
4636 }
4637#endif /* HAVE_GSSAPI */
4638
ef416fc2 4639 }
4640
4641 if (con->http.version == HTTP_1_1)
4642 envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.1";
4643 else if (con->http.version == HTTP_1_0)
4644 envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.0";
4645 else
4646 envp[envc ++] = "SERVER_PROTOCOL=HTTP/0.9";
4647
4648 if (con->http.cookie)
4649 {
4650 snprintf(http_cookie, sizeof(http_cookie), "HTTP_COOKIE=%s",
4651 con->http.cookie);
4652 envp[envc ++] = http_cookie;
4653 }
4654
4655 if (con->http.fields[HTTP_FIELD_USER_AGENT][0])
4656 {
4657 snprintf(http_user_agent, sizeof(http_user_agent), "HTTP_USER_AGENT=%s",
4658 con->http.fields[HTTP_FIELD_USER_AGENT]);
4659 envp[envc ++] = http_user_agent;
4660 }
4661
f7deaa1a 4662 if (con->http.fields[HTTP_FIELD_REFERER][0])
4663 {
4664 snprintf(http_referer, sizeof(http_referer), "HTTP_REFERER=%s",
4665 con->http.fields[HTTP_FIELD_REFERER]);
4666 envp[envc ++] = http_referer;
4667 }
4668
ef416fc2 4669 if (con->operation == HTTP_GET)
4670 {
ef416fc2 4671 envp[envc ++] = "REQUEST_METHOD=GET";
4672
b86bc4cf 4673 if (con->query_string)
ef416fc2 4674 {
4675 /*
4676 * Add GET form variables after ?...
4677 */
4678
b86bc4cf 4679 envp[envc ++] = con->query_string;
ef416fc2 4680 }
4681 }
4682 else
4683 {
e1d6a774 4684 sprintf(content_length, "CONTENT_LENGTH=" CUPS_LLFMT,
4685 CUPS_LLCAST con->bytes);
ef416fc2 4686 snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s",
4687 con->http.fields[HTTP_FIELD_CONTENT_TYPE]);
4688
4689 envp[envc ++] = "REQUEST_METHOD=POST";
4690 envp[envc ++] = content_length;
4691 envp[envc ++] = content_type;
4692 }
4693
4694 /*
4695 * Tell the CGI if we are using encryption...
4696 */
4697
a74454a7 4698 if (con->http.tls)
ef416fc2 4699 envp[envc ++] = "HTTPS=ON";
4700
4701 /*
4702 * Terminate the environment array...
4703 */
4704
4705 envp[envc] = NULL;
4706
4707 if (LogLevel == CUPSD_LOG_DEBUG2)
4708 {
4709 for (i = 0; i < argc; i ++)
4710 cupsdLogMessage(CUPSD_LOG_DEBUG2,
4711 "pipe_command: argv[%d] = \"%s\"", i, argv[i]);
4712 for (i = 0; i < envc; i ++)
4713 cupsdLogMessage(CUPSD_LOG_DEBUG2,
4714 "pipe_command: envp[%d] = \"%s\"", i, envp[i]);
4715 }
4716
4717 /*
4718 * Create a pipe for the output...
4719 */
4720
4721 if (cupsdOpenPipe(fds))
4722 {
ef416fc2 4723 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create pipes for CGI %s - %s",
4724 argv[0], strerror(errno));
4725 return (0);
4726 }
4727
4728 /*
4729 * Then execute the command...
4730 */
4731
4732 if (cupsdStartProcess(command, argv, envp, infile, fds[1], CGIPipes[1],
a4924f6c 4733 -1, -1, root, DefaultProfile, &pid) < 0)
ef416fc2 4734 {
4735 /*
4736 * Error - can't fork!
4737 */
4738
4739 cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to fork for CGI %s - %s", argv[0],
4740 strerror(errno));
4741
4742 cupsdClosePipe(fds);
4743 pid = 0;
4744 }
4745 else
4746 {
4747 /*
4748 * Fork successful - return the PID...
4749 */
4750
4751 if (con->username[0])
5bd77a73
MS		 4752#ifdef HAVE_GSSAPI
4753 cupsdAddCert(pid, con->username, ccache);
4754#else
4755 cupsdAddCert(pid, con->username, NULL);
4756#endif /* HAVE_GSSAPI */
ef416fc2 4757
355e94dc
MS		 4758 cupsdLogMessage(CUPSD_LOG_DEBUG, "[CGI] %s started - PID = %d",
4759 command, pid);
ef416fc2 4760
4761 *outfile = fds[0];
4762 close(fds[1]);
4763 }
4764
ef416fc2 4765 return (pid);
4766}
4767
4768
4769/*
a74454a7 4770 * 'write_file()' - Send a file via HTTP.
e1d6a774 4771 */
4772
4773static int /* O - 0 on failure, 1 on success */
a74454a7 4774write_file(cupsd_client_t *con, /* I - Client connection */
4775 http_status_t code, /* I - HTTP status */
4776 char *filename, /* I - Filename */
4777 char *type, /* I - File type */
4778 struct stat *filestats) /* O - File information */
e1d6a774 4779{
4780 con->file = open(filename, O_RDONLY);
4781
355e94dc 4782 cupsdLogMessage(CUPSD_LOG_DEBUG2, "write_file: %d file=%d", con->http.fd,
e1d6a774 4783 con->file);
4784
4785 if (con->file < 0)
4786 return (0);
4787
4788 fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC);
4789
4790 con->pipe_pid = 0;
4791
5bd77a73 4792 if (!cupsdSendHeader(con, code, type, CUPSD_AUTH_NONE))
e1d6a774 4793 return (0);
4794
4795 if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n",
4796 httpGetDateString(filestats->st_mtime)) < 0)
4797 return (0);
4798 if (httpPrintf(HTTP(con), "Content-Length: " CUPS_LLFMT "\r\n",
4799 CUPS_LLCAST filestats->st_size) < 0)
4800 return (0);
4801 if (httpPrintf(HTTP(con), "\r\n") < 0)
4802 return (0);
4803
07725fee 4804 if (cupsdFlushHeader(con) < 0)
4805 return (0);
d09495fa 4806
e1d6a774 4807 con->http.data_encoding = HTTP_ENCODE_LENGTH;
4808 con->http.data_remaining = filestats->st_size;
4809
4810 if (con->http.data_remaining <= INT_MAX)
4811 con->http._data_remaining = con->http.data_remaining;
4812 else
4813 con->http._data_remaining = INT_MAX;
4814
f7deaa1a 4815 cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient,
4816 (cupsd_selfunc_t)cupsdWriteClient, con);
e1d6a774 4817
4818 return (1);
4819}
4820
4821
4822/*
f899b121 4823 * 'write_pipe()' - Flag that data is available on the CGI pipe.
4824 */
4825
4826static void
4827write_pipe(cupsd_client_t *con) /* I - Client connection */
4828{
4829 cupsdLogMessage(CUPSD_LOG_DEBUG2, "write_pipe: CGI output on fd %d...",
4830 con->file);
4831
4832 con->file_ready = 1;
4833
4834 cupsdRemoveSelect(con->file);
4835 cupsdAddSelect(con->http.fd, NULL, (cupsd_selfunc_t)cupsdWriteClient, con);
4836}
4837
4838
4839/*
2e4ff8af 4840 * End of "$Id: client.c 6999 2007-09-28 19:46:53Z mike $".
ef416fc2 4841 */
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