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ef416fc2 | 1 | /* |
a215cf84 | 2 | * "$Id: client.c 12701 2015-06-08 18:33:44Z msweet $" |
ef416fc2 | 3 | * |
71f63681 | 4 | * Client routines for the CUPS scheduler. |
ef416fc2 | 5 | * |
a215cf84 | 6 | * Copyright 2007-2015 by Apple Inc. |
71f63681 | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
f7deaa1a | 8 | * |
71f63681 MS |
9 | * This file contains Kerberos support code, copyright 2006 by |
10 | * Jelmer Vernooij. | |
ef416fc2 | 11 | * |
71f63681 MS |
12 | * These coded instructions, statements, and computer programs are the |
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 | ||
19 | /* | |
20 | * Include necessary headers... | |
21 | */ | |
22 | ||
1a18c85c MS |
23 | #define _CUPS_NO_DEPRECATED |
24 | #define _HTTP_NO_PRIVATE | |
ef416fc2 | 25 | #include "cupsd.h" |
26 | ||
cb7f98ee MS |
27 | #ifdef __APPLE__ |
28 | # include <libproc.h> | |
29 | #endif /* __APPLE__ */ | |
749b1e90 MS |
30 | #ifdef HAVE_TCPD_H |
31 | # include <tcpd.h> | |
32 | #endif /* HAVE_TCPD_H */ | |
33 | ||
ef416fc2 | 34 | |
35 | /* | |
36 | * Local functions... | |
37 | */ | |
38 | ||
39 | static int check_if_modified(cupsd_client_t *con, | |
40 | struct stat *filestats); | |
3dfe78b3 MS |
41 | static int compare_clients(cupsd_client_t *a, cupsd_client_t *b, |
42 | void *data); | |
1a18c85c MS |
43 | #ifdef HAVE_SSL |
44 | static int cupsd_start_tls(cupsd_client_t *con, http_encryption_t e); | |
45 | #endif /* HAVE_SSL */ | |
f7deaa1a | 46 | static char *get_file(cupsd_client_t *con, struct stat *filestats, |
1a18c85c | 47 | char *filename, size_t len); |
c41769ff | 48 | static http_status_t install_cupsd_conf(cupsd_client_t *con); |
e1d6a774 | 49 | static int is_cgi(cupsd_client_t *con, const char *filename, |
50 | struct stat *filestats, mime_type_t *type); | |
ef416fc2 | 51 | static int is_path_absolute(const char *path); |
52 | static int pipe_command(cupsd_client_t *con, int infile, int *outfile, | |
53 | char *command, char *options, int root); | |
e07d4801 | 54 | static int valid_host(cupsd_client_t *con); |
a74454a7 | 55 | static int write_file(cupsd_client_t *con, http_status_t code, |
56 | char *filename, char *type, | |
57 | struct stat *filestats); | |
f899b121 | 58 | static void write_pipe(cupsd_client_t *con); |
ef416fc2 | 59 | |
60 | ||
61 | /* | |
62 | * 'cupsdAcceptClient()' - Accept a new client. | |
63 | */ | |
64 | ||
65 | void | |
66 | cupsdAcceptClient(cupsd_listener_t *lis)/* I - Listener socket */ | |
67 | { | |
1a18c85c MS |
68 | const char *hostname; /* Hostname of client */ |
69 | char name[256]; /* Hostname of client */ | |
ef416fc2 | 70 | int count; /* Count of connections on a host */ |
bd7854cb | 71 | cupsd_client_t *con, /* New client pointer */ |
72 | *tempcon; /* Temporary client pointer */ | |
ef416fc2 | 73 | socklen_t addrlen; /* Length of address */ |
ef416fc2 | 74 | http_addr_t temp; /* Temporary address variable */ |
75 | static time_t last_dos = 0; /* Time of last DoS attack */ | |
749b1e90 MS |
76 | #ifdef HAVE_TCPD_H |
77 | struct request_info wrap_req; /* TCP wrappers request information */ | |
78 | #endif /* HAVE_TCPD_H */ | |
ef416fc2 | 79 | |
80 | ||
81 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
b9faaae1 | 82 | "cupsdAcceptClient(lis=%p(%d)) Clients=%d", |
bd7854cb | 83 | lis, lis->fd, cupsArrayCount(Clients)); |
ef416fc2 | 84 | |
85 | /* | |
86 | * Make sure we don't have a full set of clients already... | |
87 | */ | |
88 | ||
bd7854cb | 89 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 90 | return; |
91 | ||
92 | /* | |
93 | * Get a pointer to the next available client... | |
94 | */ | |
95 | ||
bd7854cb | 96 | if (!Clients) |
97 | Clients = cupsArrayNew(NULL, NULL); | |
98 | ||
99 | if (!Clients) | |
91c84a35 MS |
100 | { |
101 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3dfe78b3 MS |
102 | "Unable to allocate memory for clients array!"); |
103 | cupsdPauseListening(); | |
104 | return; | |
105 | } | |
106 | ||
107 | if (!ActiveClients) | |
108 | ActiveClients = cupsArrayNew((cups_array_func_t)compare_clients, NULL); | |
109 | ||
110 | if (!ActiveClients) | |
111 | { | |
112 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
113 | "Unable to allocate memory for active clients array!"); | |
91c84a35 | 114 | cupsdPauseListening(); |
bd7854cb | 115 | return; |
91c84a35 | 116 | } |
bd7854cb | 117 | |
91c84a35 MS |
118 | if ((con = calloc(1, sizeof(cupsd_client_t))) == NULL) |
119 | { | |
120 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to allocate memory for client!"); | |
121 | cupsdPauseListening(); | |
122 | return; | |
123 | } | |
ef416fc2 | 124 | |
ef416fc2 | 125 | /* |
126 | * Accept the client and get the remote address... | |
127 | */ | |
128 | ||
1a18c85c MS |
129 | con->number = ++ LastClientNumber; |
130 | con->file = -1; | |
ef416fc2 | 131 | |
1a18c85c | 132 | if ((con->http = httpAcceptConnection(lis->fd, 0)) == NULL) |
ef416fc2 | 133 | { |
76cd9e37 MS |
134 | if (errno == ENFILE || errno == EMFILE) |
135 | cupsdPauseListening(); | |
136 | ||
ef416fc2 | 137 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to accept client connection - %s.", |
138 | strerror(errno)); | |
bd7854cb | 139 | free(con); |
76cd9e37 | 140 | |
ef416fc2 | 141 | return; |
142 | } | |
143 | ||
22c9029b | 144 | /* |
1a18c85c | 145 | * Save the connected address and port number... |
22c9029b | 146 | */ |
ef416fc2 | 147 | |
1a18c85c | 148 | con->clientaddr = lis->address; |
ef416fc2 | 149 | |
150 | /* | |
151 | * Check the number of clients on the same address... | |
152 | */ | |
153 | ||
bd7854cb | 154 | for (count = 0, tempcon = (cupsd_client_t *)cupsArrayFirst(Clients); |
155 | tempcon; | |
156 | tempcon = (cupsd_client_t *)cupsArrayNext(Clients)) | |
1a18c85c | 157 | if (httpAddrEqual(httpGetAddress(tempcon->http), httpGetAddress(con->http))) |
ef416fc2 | 158 | { |
159 | count ++; | |
160 | if (count >= MaxClientsPerHost) | |
161 | break; | |
162 | } | |
163 | ||
164 | if (count >= MaxClientsPerHost) | |
165 | { | |
166 | if ((time(NULL) - last_dos) >= 60) | |
167 | { | |
168 | last_dos = time(NULL); | |
169 | cupsdLogMessage(CUPSD_LOG_WARN, | |
bd7854cb | 170 | "Possible DoS attack - more than %d clients connecting " |
1a18c85c | 171 | "from %s.", |
749b1e90 | 172 | MaxClientsPerHost, |
1a18c85c | 173 | httpGetHostname(con->http, name, sizeof(name))); |
ef416fc2 | 174 | } |
175 | ||
1a18c85c | 176 | httpClose(con->http); |
bd7854cb | 177 | free(con); |
ef416fc2 | 178 | return; |
179 | } | |
180 | ||
181 | /* | |
182 | * Get the hostname or format the IP address as needed... | |
183 | */ | |
184 | ||
1a18c85c MS |
185 | if (HostNameLookups) |
186 | hostname = httpResolveHostname(con->http, NULL, 0); | |
ef416fc2 | 187 | else |
1a18c85c | 188 | hostname = httpGetHostname(con->http, NULL, 0); |
ef416fc2 | 189 | |
190 | if (hostname == NULL && HostNameLookups == 2) | |
191 | { | |
192 | /* | |
193 | * Can't have an unresolved IP address with double-lookups enabled... | |
194 | */ | |
195 | ||
1a18c85c | 196 | httpClose(con->http); |
ef416fc2 | 197 | |
1a18c85c | 198 | cupsdLogClient(con, CUPSD_LOG_WARN, |
ef416fc2 | 199 | "Name lookup failed - connection from %s closed!", |
1a18c85c | 200 | httpGetHostname(con->http, NULL, 0)); |
bd7854cb | 201 | |
202 | free(con); | |
ef416fc2 | 203 | return; |
204 | } | |
205 | ||
206 | if (HostNameLookups == 2) | |
207 | { | |
208 | /* | |
209 | * Do double lookups as needed... | |
210 | */ | |
211 | ||
1a18c85c MS |
212 | http_addrlist_t *addrlist, /* List of addresses */ |
213 | *addr; /* Current address */ | |
214 | ||
215 | if ((addrlist = httpAddrGetList(hostname, AF_UNSPEC, NULL)) != NULL) | |
ef416fc2 | 216 | { |
217 | /* | |
218 | * See if the hostname maps to the same IP address... | |
219 | */ | |
220 | ||
221 | for (addr = addrlist; addr; addr = addr->next) | |
1a18c85c | 222 | if (httpAddrEqual(httpGetAddress(con->http), &(addr->addr))) |
ef416fc2 | 223 | break; |
224 | } | |
225 | else | |
226 | addr = NULL; | |
227 | ||
228 | httpAddrFreeList(addrlist); | |
229 | ||
230 | if (!addr) | |
231 | { | |
232 | /* | |
233 | * Can't have a hostname that doesn't resolve to the same IP address | |
234 | * with double-lookups enabled... | |
235 | */ | |
236 | ||
1a18c85c | 237 | httpClose(con->http); |
ef416fc2 | 238 | |
1a18c85c | 239 | cupsdLogClient(con, CUPSD_LOG_WARN, |
ef416fc2 | 240 | "IP lookup failed - connection from %s closed!", |
1a18c85c | 241 | httpGetHostname(con->http, NULL, 0)); |
bd7854cb | 242 | free(con); |
ef416fc2 | 243 | return; |
244 | } | |
245 | } | |
246 | ||
749b1e90 MS |
247 | #ifdef HAVE_TCPD_H |
248 | /* | |
249 | * See if the connection is denied by TCP wrappers... | |
250 | */ | |
251 | ||
1a18c85c MS |
252 | request_init(&wrap_req, RQ_DAEMON, "cupsd", RQ_FILE, httpGetFd(con->http), |
253 | NULL); | |
749b1e90 MS |
254 | fromhost(&wrap_req); |
255 | ||
256 | if (!hosts_access(&wrap_req)) | |
257 | { | |
1a18c85c | 258 | httpClose(con->http); |
749b1e90 | 259 | |
1a18c85c | 260 | cupsdLogClient(con, CUPSD_LOG_WARN, |
749b1e90 | 261 | "Connection from %s refused by /etc/hosts.allow and " |
1a18c85c | 262 | "/etc/hosts.deny rules.", httpGetHostname(con->http, NULL, 0)); |
749b1e90 MS |
263 | free(con); |
264 | return; | |
265 | } | |
266 | #endif /* HAVE_TCPD_H */ | |
267 | ||
ef416fc2 | 268 | #ifdef AF_LOCAL |
1a18c85c | 269 | if (httpAddrFamily(httpGetAddress(con->http)) == AF_LOCAL) |
cb7f98ee MS |
270 | { |
271 | # ifdef __APPLE__ | |
272 | socklen_t peersize; /* Size of peer credentials */ | |
273 | pid_t peerpid; /* Peer process ID */ | |
1a18c85c | 274 | char peername[256]; /* Name of process */ |
cb7f98ee MS |
275 | |
276 | peersize = sizeof(peerpid); | |
1a18c85c MS |
277 | if (!getsockopt(httpGetFd(con->http), SOL_LOCAL, LOCAL_PEERPID, &peerpid, |
278 | &peersize)) | |
cb7f98ee | 279 | { |
1a18c85c MS |
280 | if (!proc_name((int)peerpid, peername, sizeof(peername))) |
281 | cupsdLogClient(con, CUPSD_LOG_DEBUG, | |
282 | "Accepted from %s (Domain ???[%d])", | |
283 | httpGetHostname(con->http, NULL, 0), (int)peerpid); | |
cb7f98ee | 284 | else |
1a18c85c MS |
285 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
286 | "Accepted from %s (Domain %s[%d])", | |
287 | httpGetHostname(con->http, NULL, 0), peername, (int)peerpid); | |
cb7f98ee MS |
288 | } |
289 | else | |
290 | # endif /* __APPLE__ */ | |
291 | ||
1a18c85c MS |
292 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Accepted from %s (Domain)", |
293 | httpGetHostname(con->http, NULL, 0)); | |
cb7f98ee | 294 | } |
ef416fc2 | 295 | else |
296 | #endif /* AF_LOCAL */ | |
1a18c85c MS |
297 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Accepted from %s:%d (IPv%d)", |
298 | httpGetHostname(con->http, NULL, 0), | |
299 | httpAddrPort(httpGetAddress(con->http)), | |
300 | httpAddrFamily(httpGetAddress(con->http)) == AF_INET ? 4 : 6); | |
ef416fc2 | 301 | |
302 | /* | |
303 | * Get the local address the client connected to... | |
304 | */ | |
305 | ||
306 | addrlen = sizeof(temp); | |
1a18c85c | 307 | if (getsockname(httpGetFd(con->http), (struct sockaddr *)&temp, &addrlen)) |
ef416fc2 | 308 | { |
1a18c85c MS |
309 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to get local address - %s", |
310 | strerror(errno)); | |
ef416fc2 | 311 | |
5a9febac | 312 | strlcpy(con->servername, "localhost", sizeof(con->servername)); |
ef416fc2 | 313 | con->serverport = LocalPort; |
314 | } | |
22c9029b | 315 | #ifdef AF_LOCAL |
1a18c85c | 316 | else if (httpAddrFamily(&temp) == AF_LOCAL) |
22c9029b | 317 | { |
5a9febac | 318 | strlcpy(con->servername, "localhost", sizeof(con->servername)); |
22c9029b MS |
319 | con->serverport = LocalPort; |
320 | } | |
321 | #endif /* AF_LOCAL */ | |
ef416fc2 | 322 | else |
323 | { | |
22c9029b MS |
324 | if (httpAddrLocalhost(&temp)) |
325 | strlcpy(con->servername, "localhost", sizeof(con->servername)); | |
6961465f | 326 | else if (HostNameLookups) |
22c9029b | 327 | httpAddrLookup(&temp, con->servername, sizeof(con->servername)); |
ef416fc2 | 328 | else |
22c9029b | 329 | httpAddrString(&temp, con->servername, sizeof(con->servername)); |
b19ccc9e | 330 | |
a469f8a5 | 331 | con->serverport = httpAddrPort(&(lis->address)); |
ef416fc2 | 332 | } |
333 | ||
dcb445bc MS |
334 | /* |
335 | * Add the connection to the array of active clients... | |
336 | */ | |
337 | ||
bd7854cb | 338 | cupsArrayAdd(Clients, con); |
339 | ||
ef416fc2 | 340 | /* |
b9faaae1 | 341 | * Add the socket to the server select. |
ef416fc2 | 342 | */ |
343 | ||
1a18c85c MS |
344 | cupsdAddSelect(httpGetFd(con->http), (cupsd_selfunc_t)cupsdReadClient, NULL, |
345 | con); | |
ef416fc2 | 346 | |
1a18c85c | 347 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for request."); |
1bc82dd9 | 348 | |
ef416fc2 | 349 | /* |
350 | * Temporarily suspend accept()'s until we lose a client... | |
351 | */ | |
352 | ||
bd7854cb | 353 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 354 | cupsdPauseListening(); |
355 | ||
356 | #ifdef HAVE_SSL | |
357 | /* | |
358 | * See if we are connecting on a secure port... | |
359 | */ | |
360 | ||
1a18c85c | 361 | if (lis->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 362 | { |
363 | /* | |
364 | * https connection; go secure... | |
365 | */ | |
366 | ||
1a18c85c | 367 | if (cupsd_start_tls(con, HTTP_ENCRYPTION_ALWAYS)) |
411affcf | 368 | cupsdCloseClient(con); |
ef416fc2 | 369 | } |
370 | else | |
371 | con->auto_ssl = 1; | |
372 | #endif /* HAVE_SSL */ | |
373 | } | |
374 | ||
375 | ||
376 | /* | |
377 | * 'cupsdCloseAllClients()' - Close all remote clients immediately. | |
378 | */ | |
379 | ||
380 | void | |
381 | cupsdCloseAllClients(void) | |
382 | { | |
bd7854cb | 383 | cupsd_client_t *con; /* Current client */ |
384 | ||
385 | ||
b9faaae1 MS |
386 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdCloseAllClients() Clients=%d", |
387 | cupsArrayCount(Clients)); | |
388 | ||
bd7854cb | 389 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
390 | con; | |
391 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
49d87452 MS |
392 | if (cupsdCloseClient(con)) |
393 | cupsdCloseClient(con); | |
ef416fc2 | 394 | } |
395 | ||
396 | ||
397 | /* | |
398 | * 'cupsdCloseClient()' - Close a remote client. | |
399 | */ | |
400 | ||
401 | int /* O - 1 if partial close, 0 if fully closed */ | |
402 | cupsdCloseClient(cupsd_client_t *con) /* I - Client to close */ | |
403 | { | |
404 | int partial; /* Do partial close for SSL? */ | |
ef416fc2 | 405 | |
406 | ||
1a18c85c | 407 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing connection."); |
ef416fc2 | 408 | |
409 | /* | |
410 | * Flush pending writes before closing... | |
411 | */ | |
412 | ||
1a18c85c | 413 | httpFlushWrite(con->http); |
ef416fc2 | 414 | |
415 | partial = 0; | |
416 | ||
ef416fc2 | 417 | if (con->pipe_pid != 0) |
418 | { | |
419 | /* | |
420 | * Stop any CGI process... | |
421 | */ | |
422 | ||
ef416fc2 | 423 | cupsdEndProcess(con->pipe_pid, 1); |
424 | con->pipe_pid = 0; | |
425 | } | |
426 | ||
427 | if (con->file >= 0) | |
428 | { | |
f7deaa1a | 429 | cupsdRemoveSelect(con->file); |
ef416fc2 | 430 | |
ef416fc2 | 431 | close(con->file); |
432 | con->file = -1; | |
433 | } | |
434 | ||
435 | /* | |
436 | * Close the socket and clear the file from the input set for select()... | |
437 | */ | |
438 | ||
1a18c85c | 439 | if (httpGetFd(con->http) >= 0) |
ef416fc2 | 440 | { |
3dfe78b3 MS |
441 | cupsArrayRemove(ActiveClients, con); |
442 | cupsdSetBusyState(); | |
443 | ||
1a18c85c MS |
444 | #ifdef HAVE_SSL |
445 | /* | |
446 | * Shutdown encryption as needed... | |
447 | */ | |
448 | ||
449 | if (httpIsEncrypted(con->http)) | |
450 | partial = 1; | |
451 | #endif /* HAVE_SSL */ | |
452 | ||
ef416fc2 | 453 | if (partial) |
454 | { | |
455 | /* | |
456 | * Only do a partial close so that the encrypted client gets everything. | |
457 | */ | |
458 | ||
1a18c85c MS |
459 | httpShutdown(con->http); |
460 | cupsdAddSelect(httpGetFd(con->http), (cupsd_selfunc_t)cupsdReadClient, | |
461 | NULL, con); | |
1bc82dd9 | 462 | |
1a18c85c | 463 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for socket close."); |
ef416fc2 | 464 | } |
465 | else | |
466 | { | |
467 | /* | |
468 | * Shut the socket down fully... | |
469 | */ | |
470 | ||
1a18c85c MS |
471 | cupsdRemoveSelect(httpGetFd(con->http)); |
472 | httpClose(con->http); | |
473 | con->http = NULL; | |
ef416fc2 | 474 | } |
475 | } | |
476 | ||
477 | if (!partial) | |
478 | { | |
479 | /* | |
480 | * Free memory... | |
481 | */ | |
482 | ||
1a18c85c | 483 | cupsdRemoveSelect(httpGetFd(con->http)); |
ef416fc2 | 484 | |
1a18c85c | 485 | httpClose(con->http); |
ef416fc2 | 486 | |
a215cf84 MS |
487 | if (con->filename) |
488 | { | |
489 | unlink(con->filename); | |
490 | cupsdClearString(&con->filename); | |
491 | } | |
492 | ||
ef416fc2 | 493 | cupsdClearString(&con->command); |
494 | cupsdClearString(&con->options); | |
b86bc4cf | 495 | cupsdClearString(&con->query_string); |
ef416fc2 | 496 | |
497 | if (con->request) | |
498 | { | |
499 | ippDelete(con->request); | |
500 | con->request = NULL; | |
501 | } | |
502 | ||
503 | if (con->response) | |
504 | { | |
505 | ippDelete(con->response); | |
506 | con->response = NULL; | |
507 | } | |
508 | ||
509 | if (con->language) | |
510 | { | |
511 | cupsLangFree(con->language); | |
512 | con->language = NULL; | |
513 | } | |
514 | ||
f7deaa1a | 515 | #ifdef HAVE_AUTHORIZATION_H |
516 | if (con->authref) | |
517 | { | |
518 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
519 | con->authref = NULL; | |
520 | } | |
521 | #endif /* HAVE_AUTHORIZATION_H */ | |
522 | ||
ef416fc2 | 523 | /* |
524 | * Re-enable new client connections if we are going back under the | |
525 | * limit... | |
526 | */ | |
527 | ||
bd7854cb | 528 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 529 | cupsdResumeListening(); |
530 | ||
531 | /* | |
532 | * Compact the list of clients as necessary... | |
533 | */ | |
534 | ||
bd7854cb | 535 | cupsArrayRemove(Clients, con); |
ef416fc2 | 536 | |
bd7854cb | 537 | free(con); |
ef416fc2 | 538 | } |
539 | ||
540 | return (partial); | |
541 | } | |
542 | ||
543 | ||
ef416fc2 | 544 | /* |
545 | * 'cupsdReadClient()' - Read data from a client. | |
546 | */ | |
547 | ||
f7deaa1a | 548 | void |
ef416fc2 | 549 | cupsdReadClient(cupsd_client_t *con) /* I - Client to read from */ |
550 | { | |
551 | char line[32768], /* Line from client... */ | |
ef416fc2 | 552 | locale[64], /* Locale */ |
553 | *ptr; /* Pointer into strings */ | |
ef416fc2 | 554 | http_status_t status; /* Transfer status */ |
555 | ipp_state_t ipp_state; /* State of IPP transfer */ | |
556 | int bytes; /* Number of bytes to POST */ | |
557 | char *filename; /* Name of file for GET/HEAD */ | |
558 | char buf[1024]; /* Buffer for real filename */ | |
559 | struct stat filestats; /* File information */ | |
560 | mime_type_t *type; /* MIME type of file */ | |
561 | cupsd_printer_t *p; /* Printer */ | |
562 | static unsigned request_id = 0; /* Request ID for temp files */ | |
563 | ||
564 | ||
1a18c85c MS |
565 | status = HTTP_STATUS_CONTINUE; |
566 | ||
567 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, | |
568 | "cupsdReadClient " | |
569 | "error=%d, " | |
570 | "used=%d, " | |
571 | "state=%s, " | |
572 | "data_encoding=HTTP_ENCODING_%s, " | |
573 | "data_remaining=" CUPS_LLFMT ", " | |
574 | "request=%p(%s), " | |
575 | "file=%d", | |
576 | httpError(con->http), (int)httpGetReady(con->http), | |
577 | httpStateString(httpGetState(con->http)), | |
578 | httpIsChunked(con->http) ? "CHUNKED" : "LENGTH", | |
579 | CUPS_LLCAST httpGetRemaining(con->http), | |
580 | con->request, | |
581 | con->request ? ippStateString(ippGetState(con->request)) : "", | |
582 | con->file); | |
583 | ||
584 | if (httpGetState(con->http) == HTTP_STATE_GET_SEND || | |
585 | httpGetState(con->http) == HTTP_STATE_POST_SEND || | |
586 | httpGetState(con->http) == HTTP_STATE_STATUS) | |
587 | { | |
588 | /* | |
589 | * If we get called in the wrong state, then something went wrong with the | |
590 | * connection and we need to shut it down... | |
591 | */ | |
ef416fc2 | 592 | |
a215cf84 MS |
593 | if (!httpGetReady(con->http) && recv(httpGetFd(con->http), buf, 1, MSG_PEEK) < 1) |
594 | { | |
595 | /* | |
596 | * Connection closed... | |
597 | */ | |
598 | ||
599 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing on EOF."); | |
600 | cupsdCloseClient(con); | |
601 | return; | |
602 | } | |
603 | ||
1a18c85c MS |
604 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing on unexpected HTTP read state %s.", |
605 | httpStateString(httpGetState(con->http))); | |
606 | cupsdCloseClient(con); | |
607 | return; | |
608 | } | |
ef416fc2 | 609 | |
ef416fc2 | 610 | #ifdef HAVE_SSL |
611 | if (con->auto_ssl) | |
612 | { | |
613 | /* | |
614 | * Automatically check for a SSL/TLS handshake... | |
615 | */ | |
616 | ||
617 | con->auto_ssl = 0; | |
618 | ||
1a18c85c | 619 | if (recv(httpGetFd(con->http), buf, 1, MSG_PEEK) == 1 && |
ef416fc2 | 620 | (!buf[0] || !strchr("DGHOPT", buf[0]))) |
621 | { | |
622 | /* | |
623 | * Encrypt this connection... | |
624 | */ | |
625 | ||
1a18c85c MS |
626 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
627 | "Saw first byte %02X, auto-negotiating " | |
628 | "SSL/TLS session.", buf[0] & 255); | |
ef416fc2 | 629 | |
1a18c85c | 630 | if (cupsd_start_tls(con, HTTP_ENCRYPTION_ALWAYS)) |
f7deaa1a | 631 | cupsdCloseClient(con); |
411affcf | 632 | |
f7deaa1a | 633 | return; |
ef416fc2 | 634 | } |
635 | } | |
636 | #endif /* HAVE_SSL */ | |
637 | ||
1a18c85c | 638 | switch (httpGetState(con->http)) |
ef416fc2 | 639 | { |
cb7f98ee | 640 | case HTTP_STATE_WAITING : |
ef416fc2 | 641 | /* |
642 | * See if we've received a request line... | |
643 | */ | |
644 | ||
1a18c85c MS |
645 | con->operation = httpReadRequest(con->http, con->uri, sizeof(con->uri)); |
646 | if (con->operation == HTTP_STATE_ERROR || | |
647 | con->operation == HTTP_STATE_UNKNOWN_METHOD || | |
648 | con->operation == HTTP_STATE_UNKNOWN_VERSION) | |
ef416fc2 | 649 | { |
1a18c85c MS |
650 | if (httpError(con->http)) |
651 | cupsdLogClient(con, CUPSD_LOG_DEBUG, | |
652 | "HTTP_STATE_WAITING Closing for error %d (%s)", | |
653 | httpError(con->http), strerror(httpError(con->http))); | |
f11a948a | 654 | else |
1a18c85c MS |
655 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
656 | "HTTP_STATE_WAITING Closing on error: %s", | |
657 | cupsLastErrorString()); | |
f11a948a | 658 | |
f7deaa1a | 659 | cupsdCloseClient(con); |
660 | return; | |
ef416fc2 | 661 | } |
662 | ||
663 | /* | |
664 | * Ignore blank request lines... | |
665 | */ | |
666 | ||
1a18c85c | 667 | if (con->operation == HTTP_STATE_WAITING) |
ef416fc2 | 668 | break; |
669 | ||
670 | /* | |
671 | * Clear other state variables... | |
672 | */ | |
673 | ||
1a18c85c MS |
674 | con->bytes = 0; |
675 | con->file = -1; | |
676 | con->file_ready = 0; | |
677 | con->pipe_pid = 0; | |
678 | con->username[0] = '\0'; | |
679 | con->password[0] = '\0'; | |
ef416fc2 | 680 | |
681 | cupsdClearString(&con->command); | |
682 | cupsdClearString(&con->options); | |
b86bc4cf | 683 | cupsdClearString(&con->query_string); |
ef416fc2 | 684 | |
2abf387c | 685 | if (con->request) |
686 | { | |
687 | ippDelete(con->request); | |
688 | con->request = NULL; | |
689 | } | |
690 | ||
691 | if (con->response) | |
692 | { | |
693 | ippDelete(con->response); | |
694 | con->response = NULL; | |
695 | } | |
696 | ||
697 | if (con->language) | |
ef416fc2 | 698 | { |
699 | cupsLangFree(con->language); | |
700 | con->language = NULL; | |
701 | } | |
702 | ||
09a101d6 | 703 | #ifdef HAVE_GSSAPI |
97c9a8d7 | 704 | con->have_gss = 0; |
07ed0e9a | 705 | con->gss_uid = 0; |
09a101d6 | 706 | #endif /* HAVE_GSSAPI */ |
707 | ||
ef416fc2 | 708 | /* |
709 | * Handle full URLs in the request line... | |
710 | */ | |
711 | ||
712 | if (strcmp(con->uri, "*")) | |
713 | { | |
e6013cfa | 714 | char scheme[HTTP_MAX_URI], /* Method/scheme */ |
ef416fc2 | 715 | userpass[HTTP_MAX_URI], /* Username:password */ |
716 | hostname[HTTP_MAX_URI], /* Hostname */ | |
717 | resource[HTTP_MAX_URI]; /* Resource path */ | |
718 | int port; /* Port number */ | |
719 | ||
ef416fc2 | 720 | /* |
721 | * Separate the URI into its components... | |
722 | */ | |
723 | ||
1a18c85c MS |
724 | if (httpSeparateURI(HTTP_URI_CODING_MOST, con->uri, |
725 | scheme, sizeof(scheme), | |
726 | userpass, sizeof(userpass), | |
727 | hostname, sizeof(hostname), &port, | |
728 | resource, sizeof(resource)) < HTTP_URI_STATUS_OK) | |
729 | { | |
730 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad URI \"%s\" in request.", | |
731 | con->uri); | |
732 | cupsdSendError(con, HTTP_STATUS_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE); | |
733 | cupsdCloseClient(con); | |
734 | return; | |
735 | } | |
ef416fc2 | 736 | |
1a18c85c | 737 | /* |
ef416fc2 | 738 | * Only allow URIs with the servername, localhost, or an IP |
739 | * address... | |
740 | */ | |
741 | ||
e6013cfa | 742 | if (strcmp(scheme, "file") && |
88f9aafc MS |
743 | _cups_strcasecmp(hostname, ServerName) && |
744 | _cups_strcasecmp(hostname, "localhost") && | |
1a18c85c | 745 | !cupsArrayFind(ServerAlias, hostname) && |
e6013cfa | 746 | !isdigit(hostname[0]) && hostname[0] != '[') |
ef416fc2 | 747 | { |
748 | /* | |
749 | * Nope, we don't do proxies... | |
750 | */ | |
751 | ||
1a18c85c MS |
752 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad URI \"%s\" in request.", |
753 | con->uri); | |
754 | cupsdSendError(con, HTTP_STATUS_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE); | |
f7deaa1a | 755 | cupsdCloseClient(con); |
756 | return; | |
ef416fc2 | 757 | } |
758 | ||
759 | /* | |
760 | * Copy the resource portion back into the URI; both resource and | |
761 | * con->uri are HTTP_MAX_URI bytes in size... | |
762 | */ | |
763 | ||
5a9febac | 764 | strlcpy(con->uri, resource, sizeof(con->uri)); |
ef416fc2 | 765 | } |
766 | ||
767 | /* | |
768 | * Process the request... | |
769 | */ | |
770 | ||
dfd5680b | 771 | gettimeofday(&(con->start), NULL); |
ef416fc2 | 772 | |
1a18c85c MS |
773 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "%s %s HTTP/%d.%d", |
774 | httpStateString(con->operation) + 11, con->uri, | |
775 | httpGetVersion(con->http) / 100, | |
776 | httpGetVersion(con->http) % 100); | |
ef416fc2 | 777 | |
49d87452 MS |
778 | if (!cupsArrayFind(ActiveClients, con)) |
779 | { | |
780 | cupsArrayAdd(ActiveClients, con); | |
781 | cupsdSetBusyState(); | |
782 | } | |
3dfe78b3 | 783 | |
cb7f98ee MS |
784 | case HTTP_STATE_OPTIONS : |
785 | case HTTP_STATE_DELETE : | |
786 | case HTTP_STATE_GET : | |
787 | case HTTP_STATE_HEAD : | |
788 | case HTTP_STATE_POST : | |
789 | case HTTP_STATE_PUT : | |
790 | case HTTP_STATE_TRACE : | |
ef416fc2 | 791 | /* |
792 | * Parse incoming parameters until the status changes... | |
793 | */ | |
794 | ||
1a18c85c MS |
795 | while ((status = httpUpdate(con->http)) == HTTP_STATUS_CONTINUE) |
796 | if (!httpGetReady(con->http)) | |
f7deaa1a | 797 | break; |
ef416fc2 | 798 | |
1a18c85c | 799 | if (status != HTTP_STATUS_OK && status != HTTP_STATUS_CONTINUE) |
ef416fc2 | 800 | { |
1a18c85c MS |
801 | if (httpError(con->http) && httpError(con->http) != EPIPE) |
802 | cupsdLogClient(con, CUPSD_LOG_DEBUG, | |
803 | "Closing for error %d (%s) while reading headers.", | |
804 | httpError(con->http), strerror(httpError(con->http))); | |
f11a948a | 805 | else |
1a18c85c MS |
806 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
807 | "Closing on EOF while reading headers."); | |
f11a948a | 808 | |
1a18c85c | 809 | cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 810 | cupsdCloseClient(con); |
811 | return; | |
ef416fc2 | 812 | } |
813 | break; | |
814 | ||
815 | default : | |
1a18c85c | 816 | if (!httpGetReady(con->http) && recv(httpGetFd(con->http), buf, 1, MSG_PEEK) < 1) |
e6013cfa MS |
817 | { |
818 | /* | |
819 | * Connection closed... | |
820 | */ | |
821 | ||
1a18c85c | 822 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing on EOF."); |
e6013cfa MS |
823 | cupsdCloseClient(con); |
824 | return; | |
825 | } | |
ef416fc2 | 826 | break; /* Anti-compiler-warning-code */ |
827 | } | |
828 | ||
829 | /* | |
830 | * Handle new transfers... | |
831 | */ | |
832 | ||
1a18c85c MS |
833 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Read: status=%d", status); |
834 | ||
835 | if (status == HTTP_STATUS_OK) | |
ef416fc2 | 836 | { |
1a18c85c | 837 | if (httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE)[0]) |
ef416fc2 | 838 | { |
839 | /* | |
840 | * Figure out the locale from the Accept-Language and Content-Type | |
841 | * fields... | |
842 | */ | |
843 | ||
1a18c85c | 844 | if ((ptr = strchr(httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE), |
f11a948a | 845 | ',')) != NULL) |
ef416fc2 | 846 | *ptr = '\0'; |
847 | ||
1a18c85c | 848 | if ((ptr = strchr(httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE), |
f11a948a | 849 | ';')) != NULL) |
ef416fc2 | 850 | *ptr = '\0'; |
851 | ||
1a18c85c | 852 | if ((ptr = strstr(httpGetField(con->http, HTTP_FIELD_CONTENT_TYPE), |
f11a948a | 853 | "charset=")) != NULL) |
ef416fc2 | 854 | { |
855 | /* | |
856 | * Combine language and charset, and trim any extra params in the | |
857 | * content-type. | |
858 | */ | |
859 | ||
860 | snprintf(locale, sizeof(locale), "%s.%s", | |
1a18c85c | 861 | httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE), ptr + 8); |
ef416fc2 | 862 | |
863 | if ((ptr = strchr(locale, ',')) != NULL) | |
864 | *ptr = '\0'; | |
865 | } | |
866 | else | |
f8b3a85b | 867 | snprintf(locale, sizeof(locale), "%s.UTF-8", |
1a18c85c | 868 | httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE)); |
d6ae789d | 869 | |
ef416fc2 | 870 | con->language = cupsLangGet(locale); |
871 | } | |
872 | else | |
873 | con->language = cupsLangGet(DefaultLocale); | |
874 | ||
875 | cupsdAuthorize(con); | |
876 | ||
1a18c85c | 877 | if (!_cups_strncasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), |
85dda01c | 878 | "Keep-Alive", 10) && KeepAlive) |
1a18c85c MS |
879 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_ON); |
880 | else if (!_cups_strncasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), | |
85dda01c | 881 | "close", 5)) |
1a18c85c | 882 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); |
ef416fc2 | 883 | |
1a18c85c MS |
884 | if (!httpGetField(con->http, HTTP_FIELD_HOST)[0] && |
885 | httpGetVersion(con->http) >= HTTP_VERSION_1_1) | |
ef416fc2 | 886 | { |
887 | /* | |
888 | * HTTP/1.1 and higher require the "Host:" field... | |
889 | */ | |
890 | ||
1a18c85c | 891 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 892 | { |
1a18c85c | 893 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Missing Host: field in request."); |
f7deaa1a | 894 | cupsdCloseClient(con); |
895 | return; | |
896 | } | |
ef416fc2 | 897 | } |
e07d4801 | 898 | else if (!valid_host(con)) |
e6013cfa MS |
899 | { |
900 | /* | |
901 | * Access to localhost must use "localhost" or the corresponding IPv4 | |
902 | * or IPv6 values in the Host: field. | |
903 | */ | |
904 | ||
1a18c85c MS |
905 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
906 | "Request from \"%s\" using invalid Host: field \"%s\".", | |
907 | httpGetHostname(con->http, NULL, 0), httpGetField(con->http, HTTP_FIELD_HOST)); | |
e6013cfa | 908 | |
1a18c85c | 909 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
e6013cfa MS |
910 | { |
911 | cupsdCloseClient(con); | |
912 | return; | |
913 | } | |
914 | } | |
cb7f98ee | 915 | else if (con->operation == HTTP_STATE_OPTIONS) |
ef416fc2 | 916 | { |
917 | /* | |
918 | * Do OPTIONS command... | |
919 | */ | |
920 | ||
5bd77a73 | 921 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
ef416fc2 | 922 | { |
1a18c85c MS |
923 | httpClearFields(con->http); |
924 | ||
925 | if (!cupsdSendHeader(con, HTTP_STATUS_UNAUTHORIZED, NULL, CUPSD_AUTH_NONE)) | |
f7deaa1a | 926 | { |
927 | cupsdCloseClient(con); | |
928 | return; | |
929 | } | |
ef416fc2 | 930 | } |
931 | ||
1a18c85c | 932 | if (!_cups_strcasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), "Upgrade") && strstr(httpGetField(con->http, HTTP_FIELD_UPGRADE), "TLS/") != NULL && !httpIsEncrypted(con->http)) |
ef416fc2 | 933 | { |
934 | #ifdef HAVE_SSL | |
935 | /* | |
936 | * Do encryption stuff... | |
937 | */ | |
938 | ||
1a18c85c | 939 | httpClearFields(con->http); |
07725fee | 940 | |
1a18c85c MS |
941 | if (!cupsdSendHeader(con, HTTP_STATUS_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE)) |
942 | { | |
f7deaa1a | 943 | cupsdCloseClient(con); |
944 | return; | |
945 | } | |
ef416fc2 | 946 | |
1a18c85c | 947 | if (cupsd_start_tls(con, HTTP_ENCRYPTION_REQUIRED)) |
f7deaa1a | 948 | { |
949 | cupsdCloseClient(con); | |
950 | return; | |
951 | } | |
ef416fc2 | 952 | #else |
5d2cc5d3 | 953 | if (!cupsdSendError(con, HTTP_STATUS_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 954 | { |
955 | cupsdCloseClient(con); | |
956 | return; | |
957 | } | |
ef416fc2 | 958 | #endif /* HAVE_SSL */ |
959 | } | |
960 | ||
1a18c85c MS |
961 | httpClearFields(con->http); |
962 | httpSetField(con->http, HTTP_FIELD_ALLOW, | |
963 | "GET, HEAD, OPTIONS, POST, PUT"); | |
964 | httpSetField(con->http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
07725fee | 965 | |
1a18c85c | 966 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 967 | { |
968 | cupsdCloseClient(con); | |
969 | return; | |
970 | } | |
ef416fc2 | 971 | } |
972 | else if (!is_path_absolute(con->uri)) | |
973 | { | |
974 | /* | |
975 | * Protect against malicious users! | |
976 | */ | |
977 | ||
1a18c85c MS |
978 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
979 | "Request for non-absolute resource \"%s\".", con->uri); | |
bf3816c7 | 980 | |
1a18c85c | 981 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 982 | { |
983 | cupsdCloseClient(con); | |
984 | return; | |
985 | } | |
ef416fc2 | 986 | } |
987 | else | |
988 | { | |
1a18c85c MS |
989 | if (!_cups_strcasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), |
990 | "Upgrade") && !httpIsEncrypted(con->http)) | |
ef416fc2 | 991 | { |
992 | #ifdef HAVE_SSL | |
993 | /* | |
994 | * Do encryption stuff... | |
995 | */ | |
996 | ||
1a18c85c MS |
997 | httpClearFields(con->http); |
998 | ||
999 | if (!cupsdSendHeader(con, HTTP_STATUS_SWITCHING_PROTOCOLS, NULL, | |
85dda01c | 1000 | CUPSD_AUTH_NONE)) |
f7deaa1a | 1001 | { |
1002 | cupsdCloseClient(con); | |
1003 | return; | |
1004 | } | |
ef416fc2 | 1005 | |
1a18c85c | 1006 | if (cupsd_start_tls(con, HTTP_ENCRYPTION_REQUIRED)) |
f7deaa1a | 1007 | { |
1008 | cupsdCloseClient(con); | |
1009 | return; | |
1010 | } | |
ef416fc2 | 1011 | #else |
5d2cc5d3 | 1012 | if (!cupsdSendError(con, HTTP_STATUS_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1013 | { |
1014 | cupsdCloseClient(con); | |
1015 | return; | |
1016 | } | |
ef416fc2 | 1017 | #endif /* HAVE_SSL */ |
1018 | } | |
1019 | ||
1a18c85c | 1020 | if ((status = cupsdIsAuthorized(con, NULL)) != HTTP_STATUS_OK) |
ef416fc2 | 1021 | { |
5bd77a73 | 1022 | cupsdSendError(con, status, CUPSD_AUTH_NONE); |
f7deaa1a | 1023 | cupsdCloseClient(con); |
1024 | return; | |
ef416fc2 | 1025 | } |
1026 | ||
1a18c85c | 1027 | if (httpGetExpect(con->http) && |
cb7f98ee | 1028 | (con->operation == HTTP_STATE_POST || con->operation == HTTP_STATE_PUT)) |
ef416fc2 | 1029 | { |
1a18c85c | 1030 | if (httpGetExpect(con->http) == HTTP_STATUS_CONTINUE) |
b423cd4c | 1031 | { |
1032 | /* | |
1033 | * Send 100-continue header... | |
1034 | */ | |
1035 | ||
1a18c85c | 1036 | if (httpWriteResponse(con->http, HTTP_STATUS_CONTINUE)) |
f7deaa1a | 1037 | { |
1038 | cupsdCloseClient(con); | |
1039 | return; | |
1040 | } | |
b423cd4c | 1041 | } |
1042 | else | |
1043 | { | |
1044 | /* | |
1045 | * Send 417-expectation-failed header... | |
1046 | */ | |
1047 | ||
1a18c85c MS |
1048 | httpClearFields(con->http); |
1049 | httpSetField(con->http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
07725fee | 1050 | |
1a18c85c MS |
1051 | cupsdSendError(con, HTTP_STATUS_EXPECTATION_FAILED, CUPSD_AUTH_NONE); |
1052 | cupsdCloseClient(con); | |
1053 | return; | |
b423cd4c | 1054 | } |
ef416fc2 | 1055 | } |
1056 | ||
1a18c85c | 1057 | switch (httpGetState(con->http)) |
ef416fc2 | 1058 | { |
cb7f98ee | 1059 | case HTTP_STATE_GET_SEND : |
1a18c85c MS |
1060 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Processing GET %s", con->uri); |
1061 | ||
db8b865d | 1062 | if ((!strncmp(con->uri, "/ppd/", 5) || |
6961465f MS |
1063 | !strncmp(con->uri, "/printers/", 10) || |
1064 | !strncmp(con->uri, "/classes/", 9)) && | |
ef416fc2 | 1065 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) |
1066 | { | |
1067 | /* | |
1068 | * Send PPD file - get the real printer name since printer | |
1069 | * names are not case sensitive but filenames can be... | |
1070 | */ | |
1071 | ||
1072 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1073 | ||
db8b865d MS |
1074 | if (!strncmp(con->uri, "/ppd/", 5)) |
1075 | p = cupsdFindPrinter(con->uri + 5); | |
6961465f | 1076 | else if (!strncmp(con->uri, "/printers/", 10)) |
db8b865d | 1077 | p = cupsdFindPrinter(con->uri + 10); |
6961465f MS |
1078 | else |
1079 | { | |
1080 | p = cupsdFindClass(con->uri + 9); | |
1081 | ||
1082 | if (p) | |
1083 | { | |
1084 | int i; /* Looping var */ | |
1085 | ||
1086 | for (i = 0; i < p->num_printers; i ++) | |
1087 | { | |
1088 | if (!(p->printers[i]->type & CUPS_PRINTER_CLASS)) | |
1089 | { | |
1090 | char ppdname[1024];/* PPD filename */ | |
1091 | ||
1092 | snprintf(ppdname, sizeof(ppdname), "%s/ppd/%s.ppd", | |
1093 | ServerRoot, p->printers[i]->name); | |
1094 | if (!access(ppdname, 0)) | |
1095 | { | |
1096 | p = p->printers[i]; | |
1097 | break; | |
1098 | } | |
1099 | } | |
1100 | } | |
1101 | ||
1102 | if (i >= p->num_printers) | |
1103 | p = NULL; | |
1104 | } | |
1105 | } | |
db8b865d MS |
1106 | |
1107 | if (p) | |
1108 | { | |
ef416fc2 | 1109 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); |
db8b865d | 1110 | } |
ef416fc2 | 1111 | else |
1112 | { | |
1a18c85c | 1113 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1114 | { |
1115 | cupsdCloseClient(con); | |
1116 | return; | |
1117 | } | |
ef416fc2 | 1118 | |
1119 | break; | |
1120 | } | |
1121 | } | |
db8b865d MS |
1122 | else if ((!strncmp(con->uri, "/icons/", 7) || |
1123 | !strncmp(con->uri, "/printers/", 10) || | |
7cf5915e MS |
1124 | !strncmp(con->uri, "/classes/", 9)) && |
1125 | !strcmp(con->uri + strlen(con->uri) - 4, ".png")) | |
1126 | { | |
1127 | /* | |
1128 | * Send icon file - get the real queue name since queue names are | |
1129 | * not case sensitive but filenames can be... | |
1130 | */ | |
1131 | ||
1132 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".png" */ | |
1133 | ||
db8b865d MS |
1134 | if (!strncmp(con->uri, "/icons/", 7)) |
1135 | p = cupsdFindPrinter(con->uri + 7); | |
1136 | else if (!strncmp(con->uri, "/printers/", 10)) | |
7cf5915e MS |
1137 | p = cupsdFindPrinter(con->uri + 10); |
1138 | else | |
6961465f MS |
1139 | { |
1140 | p = cupsdFindClass(con->uri + 9); | |
1141 | ||
1142 | if (p) | |
1143 | { | |
1144 | int i; /* Looping var */ | |
1145 | ||
1146 | for (i = 0; i < p->num_printers; i ++) | |
1147 | { | |
1148 | if (!(p->printers[i]->type & CUPS_PRINTER_CLASS)) | |
1149 | { | |
1150 | char ppdname[1024];/* PPD filename */ | |
1151 | ||
1152 | snprintf(ppdname, sizeof(ppdname), "%s/ppd/%s.ppd", | |
1153 | ServerRoot, p->printers[i]->name); | |
1154 | if (!access(ppdname, 0)) | |
1155 | { | |
1156 | p = p->printers[i]; | |
1157 | break; | |
1158 | } | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | if (i >= p->num_printers) | |
1163 | p = NULL; | |
1164 | } | |
1165 | } | |
7cf5915e MS |
1166 | |
1167 | if (p) | |
1168 | snprintf(con->uri, sizeof(con->uri), "/icons/%s.png", p->name); | |
1169 | else | |
1170 | { | |
1a18c85c | 1171 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
7cf5915e MS |
1172 | { |
1173 | cupsdCloseClient(con); | |
1174 | return; | |
1175 | } | |
1176 | ||
1177 | break; | |
1178 | } | |
1179 | } | |
0268488e | 1180 | else if (!WebInterface) |
229681c1 MS |
1181 | { |
1182 | /* | |
1183 | * Web interface is disabled. Show an appropriate message... | |
1184 | */ | |
1185 | ||
1a18c85c | 1186 | if (!cupsdSendError(con, HTTP_STATUS_CUPS_WEBIF_DISABLED, CUPSD_AUTH_NONE)) |
229681c1 MS |
1187 | { |
1188 | cupsdCloseClient(con); | |
1189 | return; | |
1190 | } | |
1191 | ||
1192 | break; | |
1193 | } | |
0268488e MS |
1194 | |
1195 | if ((!strncmp(con->uri, "/admin", 6) && | |
1196 | strncmp(con->uri, "/admin/conf/", 12) && | |
1197 | strncmp(con->uri, "/admin/log/", 11)) || | |
1198 | !strncmp(con->uri, "/printers", 9) || | |
1199 | !strncmp(con->uri, "/classes", 8) || | |
1200 | !strncmp(con->uri, "/help", 5) || | |
1201 | !strncmp(con->uri, "/jobs", 5)) | |
ef416fc2 | 1202 | { |
1203 | /* | |
1204 | * Send CGI output... | |
1205 | */ | |
1206 | ||
1207 | if (!strncmp(con->uri, "/admin", 6)) | |
1208 | { | |
1209 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1210 | ServerBin); | |
1211 | ||
b423cd4c | 1212 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1213 | } |
1214 | else if (!strncmp(con->uri, "/printers", 9)) | |
1215 | { | |
1216 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1217 | ServerBin); | |
b423cd4c | 1218 | |
1219 | if (con->uri[9] && con->uri[10]) | |
1220 | cupsdSetString(&con->options, con->uri + 9); | |
1221 | else | |
1222 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1223 | } |
1224 | else if (!strncmp(con->uri, "/classes", 8)) | |
1225 | { | |
1226 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1227 | ServerBin); | |
b423cd4c | 1228 | |
1229 | if (con->uri[8] && con->uri[9]) | |
1230 | cupsdSetString(&con->options, con->uri + 8); | |
1231 | else | |
1232 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1233 | } |
1234 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1235 | { | |
1236 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1237 | ServerBin); | |
b423cd4c | 1238 | |
1239 | if (con->uri[5] && con->uri[6]) | |
1240 | cupsdSetString(&con->options, con->uri + 5); | |
1241 | else | |
1242 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1243 | } |
1244 | else | |
1245 | { | |
1246 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1247 | ServerBin); | |
ef416fc2 | 1248 | |
b423cd4c | 1249 | if (con->uri[5] && con->uri[6]) |
1250 | cupsdSetString(&con->options, con->uri + 5); | |
1251 | else | |
1252 | cupsdSetString(&con->options, NULL); | |
1253 | } | |
ef416fc2 | 1254 | |
1255 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1256 | { | |
1a18c85c | 1257 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1258 | { |
1259 | cupsdCloseClient(con); | |
1260 | return; | |
1261 | } | |
ef416fc2 | 1262 | } |
1263 | else | |
1a18c85c | 1264 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 1265 | |
1a18c85c MS |
1266 | if (httpGetVersion(con->http) <= HTTP_VERSION_1_0) |
1267 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); | |
ef416fc2 | 1268 | } |
1269 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1270 | (strchr(con->uri + 12, '/') || | |
1271 | strlen(con->uri) == 12)) || | |
1272 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1273 | (strchr(con->uri + 11, '/') || | |
1274 | strlen(con->uri) == 11))) | |
1275 | { | |
1276 | /* | |
bf3816c7 | 1277 | * GET can only be done to configuration files directly under |
ef416fc2 | 1278 | * /admin/conf... |
1279 | */ | |
1280 | ||
1a18c85c | 1281 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
bf3816c7 MS |
1282 | "Request for subdirectory \"%s\"!", con->uri); |
1283 | ||
1a18c85c | 1284 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1285 | { |
1286 | cupsdCloseClient(con); | |
1287 | return; | |
1288 | } | |
ef416fc2 | 1289 | |
1290 | break; | |
1291 | } | |
1292 | else | |
1293 | { | |
1294 | /* | |
1295 | * Serve a file... | |
1296 | */ | |
1297 | ||
1298 | if ((filename = get_file(con, &filestats, buf, | |
1299 | sizeof(buf))) == NULL) | |
1300 | { | |
1a18c85c | 1301 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1302 | { |
1303 | cupsdCloseClient(con); | |
1304 | return; | |
1305 | } | |
ef416fc2 | 1306 | |
1307 | break; | |
1308 | } | |
1309 | ||
4400e98d | 1310 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1311 | |
1a18c85c MS |
1312 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "filename=\"%s\", type=%s/%s", filename, type ? type->super : "", type ? type->type : ""); |
1313 | ||
e1d6a774 | 1314 | if (is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1315 | { |
1316 | /* | |
1317 | * Note: con->command and con->options were set by | |
e1d6a774 | 1318 | * is_cgi()... |
ef416fc2 | 1319 | */ |
1320 | ||
1321 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1322 | { | |
1a18c85c | 1323 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1324 | { |
1325 | cupsdCloseClient(con); | |
1326 | return; | |
1327 | } | |
ef416fc2 | 1328 | } |
1329 | else | |
1a18c85c | 1330 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 1331 | |
1a18c85c MS |
1332 | if (httpGetVersion(con->http) <= HTTP_VERSION_1_0) |
1333 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); | |
ef416fc2 | 1334 | break; |
1335 | } | |
1336 | ||
1337 | if (!check_if_modified(con, &filestats)) | |
1338 | { | |
1a18c85c | 1339 | if (!cupsdSendError(con, HTTP_STATUS_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1340 | { |
1341 | cupsdCloseClient(con); | |
1342 | return; | |
1343 | } | |
ef416fc2 | 1344 | } |
1345 | else | |
1346 | { | |
1347 | if (type == NULL) | |
5a9febac | 1348 | strlcpy(line, "text/plain", sizeof(line)); |
ef416fc2 | 1349 | else |
1350 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1351 | ||
1a18c85c | 1352 | if (!write_file(con, HTTP_STATUS_OK, filename, line, &filestats)) |
f7deaa1a | 1353 | { |
1354 | cupsdCloseClient(con); | |
1355 | return; | |
1356 | } | |
ef416fc2 | 1357 | } |
1358 | } | |
1359 | break; | |
1360 | ||
cb7f98ee | 1361 | case HTTP_STATE_POST_RECV : |
ef416fc2 | 1362 | /* |
1363 | * See if the POST request includes a Content-Length field, and if | |
1364 | * so check the length against any limits that are set... | |
1365 | */ | |
1366 | ||
1a18c85c | 1367 | if (httpGetField(con->http, HTTP_FIELD_CONTENT_LENGTH)[0] && |
ef416fc2 | 1368 | MaxRequestSize > 0 && |
1a18c85c | 1369 | httpGetLength2(con->http) > MaxRequestSize) |
ef416fc2 | 1370 | { |
1371 | /* | |
1372 | * Request too large... | |
1373 | */ | |
1374 | ||
1a18c85c | 1375 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1376 | { |
1377 | cupsdCloseClient(con); | |
1378 | return; | |
1379 | } | |
ef416fc2 | 1380 | |
1381 | break; | |
1382 | } | |
1a18c85c | 1383 | else if (httpGetLength2(con->http) < 0) |
ef416fc2 | 1384 | { |
1385 | /* | |
1386 | * Negative content lengths are invalid! | |
1387 | */ | |
1388 | ||
1a18c85c | 1389 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1390 | { |
1391 | cupsdCloseClient(con); | |
1392 | return; | |
1393 | } | |
ef416fc2 | 1394 | |
1395 | break; | |
1396 | } | |
1397 | ||
1398 | /* | |
1399 | * See what kind of POST request this is; for IPP requests the | |
1400 | * content-type field will be "application/ipp"... | |
1401 | */ | |
1402 | ||
1a18c85c | 1403 | if (!strcmp(httpGetField(con->http, HTTP_FIELD_CONTENT_TYPE), |
ef416fc2 | 1404 | "application/ipp")) |
1405 | con->request = ippNew(); | |
229681c1 MS |
1406 | else if (!WebInterface) |
1407 | { | |
1408 | /* | |
1409 | * Web interface is disabled. Show an appropriate message... | |
1410 | */ | |
1411 | ||
1a18c85c | 1412 | if (!cupsdSendError(con, HTTP_STATUS_CUPS_WEBIF_DISABLED, CUPSD_AUTH_NONE)) |
229681c1 MS |
1413 | { |
1414 | cupsdCloseClient(con); | |
1415 | return; | |
1416 | } | |
1417 | ||
1418 | break; | |
1419 | } | |
ef416fc2 | 1420 | else if ((!strncmp(con->uri, "/admin", 6) && |
1421 | strncmp(con->uri, "/admin/conf/", 12) && | |
1422 | strncmp(con->uri, "/admin/log/", 11)) || | |
1423 | !strncmp(con->uri, "/printers", 9) || | |
1424 | !strncmp(con->uri, "/classes", 8) || | |
1425 | !strncmp(con->uri, "/help", 5) || | |
1426 | !strncmp(con->uri, "/jobs", 5)) | |
1427 | { | |
1428 | /* | |
1429 | * CGI request... | |
1430 | */ | |
1431 | ||
1432 | if (!strncmp(con->uri, "/admin", 6)) | |
1433 | { | |
1434 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1435 | ServerBin); | |
1436 | ||
b423cd4c | 1437 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1438 | } |
1439 | else if (!strncmp(con->uri, "/printers", 9)) | |
1440 | { | |
1441 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1442 | ServerBin); | |
b423cd4c | 1443 | |
1444 | if (con->uri[9] && con->uri[10]) | |
1445 | cupsdSetString(&con->options, con->uri + 9); | |
1446 | else | |
1447 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1448 | } |
1449 | else if (!strncmp(con->uri, "/classes", 8)) | |
1450 | { | |
1451 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1452 | ServerBin); | |
b423cd4c | 1453 | |
1454 | if (con->uri[8] && con->uri[9]) | |
1455 | cupsdSetString(&con->options, con->uri + 8); | |
1456 | else | |
1457 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1458 | } |
1459 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1460 | { | |
1461 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1462 | ServerBin); | |
b423cd4c | 1463 | |
1464 | if (con->uri[5] && con->uri[6]) | |
1465 | cupsdSetString(&con->options, con->uri + 5); | |
1466 | else | |
1467 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1468 | } |
1469 | else | |
1470 | { | |
1471 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1472 | ServerBin); | |
ef416fc2 | 1473 | |
b423cd4c | 1474 | if (con->uri[5] && con->uri[6]) |
1475 | cupsdSetString(&con->options, con->uri + 5); | |
1476 | else | |
1477 | cupsdSetString(&con->options, NULL); | |
1478 | } | |
ef416fc2 | 1479 | |
1a18c85c MS |
1480 | if (httpGetVersion(con->http) <= HTTP_VERSION_1_0) |
1481 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); | |
ef416fc2 | 1482 | } |
1483 | else | |
1484 | { | |
1485 | /* | |
1486 | * POST to a file... | |
1487 | */ | |
1488 | ||
1489 | if ((filename = get_file(con, &filestats, buf, | |
1490 | sizeof(buf))) == NULL) | |
1491 | { | |
1a18c85c | 1492 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1493 | { |
1494 | cupsdCloseClient(con); | |
1495 | return; | |
1496 | } | |
ef416fc2 | 1497 | |
1498 | break; | |
1499 | } | |
1500 | ||
4400e98d | 1501 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1502 | |
e1d6a774 | 1503 | if (!is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1504 | { |
1505 | /* | |
1506 | * Only POST to CGI's... | |
1507 | */ | |
1508 | ||
1a18c85c | 1509 | if (!cupsdSendError(con, HTTP_STATUS_UNAUTHORIZED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1510 | { |
1511 | cupsdCloseClient(con); | |
1512 | return; | |
1513 | } | |
ef416fc2 | 1514 | } |
1515 | } | |
1516 | break; | |
1517 | ||
cb7f98ee | 1518 | case HTTP_STATE_PUT_RECV : |
ef416fc2 | 1519 | /* |
1520 | * Validate the resource name... | |
1521 | */ | |
1522 | ||
c41769ff | 1523 | if (strcmp(con->uri, "/admin/conf/cupsd.conf")) |
ef416fc2 | 1524 | { |
1525 | /* | |
c41769ff | 1526 | * PUT can only be done to the cupsd.conf file... |
ef416fc2 | 1527 | */ |
1528 | ||
1a18c85c MS |
1529 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1530 | "Disallowed PUT request for \"%s\".", con->uri); | |
bf3816c7 | 1531 | |
1a18c85c | 1532 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1533 | { |
1534 | cupsdCloseClient(con); | |
1535 | return; | |
1536 | } | |
ef416fc2 | 1537 | |
1538 | break; | |
1539 | } | |
1540 | ||
1541 | /* | |
1542 | * See if the PUT request includes a Content-Length field, and if | |
1543 | * so check the length against any limits that are set... | |
1544 | */ | |
1545 | ||
1a18c85c | 1546 | if (httpGetField(con->http, HTTP_FIELD_CONTENT_LENGTH)[0] && |
ef416fc2 | 1547 | MaxRequestSize > 0 && |
1a18c85c | 1548 | httpGetLength2(con->http) > MaxRequestSize) |
ef416fc2 | 1549 | { |
1550 | /* | |
1551 | * Request too large... | |
1552 | */ | |
1553 | ||
1a18c85c | 1554 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1555 | { |
1556 | cupsdCloseClient(con); | |
1557 | return; | |
1558 | } | |
ef416fc2 | 1559 | |
1560 | break; | |
1561 | } | |
1a18c85c | 1562 | else if (httpGetLength2(con->http) < 0) |
ef416fc2 | 1563 | { |
1564 | /* | |
1565 | * Negative content lengths are invalid! | |
1566 | */ | |
1567 | ||
1a18c85c | 1568 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1569 | { |
1570 | cupsdCloseClient(con); | |
1571 | return; | |
1572 | } | |
ef416fc2 | 1573 | |
1574 | break; | |
1575 | } | |
1576 | ||
1577 | /* | |
1578 | * Open a temporary file to hold the request... | |
1579 | */ | |
1580 | ||
1581 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, | |
1582 | request_id ++); | |
1583 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); | |
1584 | ||
ef416fc2 | 1585 | if (con->file < 0) |
1586 | { | |
1a18c85c MS |
1587 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1588 | "Unable to create request file \"%s\": %s", | |
1589 | con->filename, strerror(errno)); | |
a4924f6c | 1590 | |
1a18c85c | 1591 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1592 | { |
1593 | cupsdCloseClient(con); | |
1594 | return; | |
1595 | } | |
ef416fc2 | 1596 | } |
1597 | ||
1598 | fchmod(con->file, 0640); | |
1599 | fchown(con->file, RunUser, Group); | |
1600 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1601 | break; | |
1602 | ||
cb7f98ee MS |
1603 | case HTTP_STATE_DELETE : |
1604 | case HTTP_STATE_TRACE : | |
1a18c85c | 1605 | cupsdSendError(con, HTTP_STATUS_NOT_IMPLEMENTED, CUPSD_AUTH_NONE); |
f7deaa1a | 1606 | cupsdCloseClient(con); |
1607 | return; | |
ef416fc2 | 1608 | |
cb7f98ee | 1609 | case HTTP_STATE_HEAD : |
ef416fc2 | 1610 | if (!strncmp(con->uri, "/printers/", 10) && |
1611 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1612 | { | |
1613 | /* | |
1614 | * Send PPD file - get the real printer name since printer | |
1615 | * names are not case sensitive but filenames can be... | |
1616 | */ | |
1617 | ||
1618 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1619 | ||
1620 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1621 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1622 | else | |
1623 | { | |
1a18c85c | 1624 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1625 | { |
1626 | cupsdCloseClient(con); | |
1627 | return; | |
1628 | } | |
ef416fc2 | 1629 | |
1a18c85c | 1630 | cupsdLogRequest(con, HTTP_STATUS_NOT_FOUND); |
ef416fc2 | 1631 | break; |
1632 | } | |
1633 | } | |
229681c1 MS |
1634 | else if (!strncmp(con->uri, "/printers/", 10) && |
1635 | !strcmp(con->uri + strlen(con->uri) - 4, ".png")) | |
1636 | { | |
1637 | /* | |
1638 | * Send PNG file - get the real printer name since printer | |
1639 | * names are not case sensitive but filenames can be... | |
1640 | */ | |
1641 | ||
1642 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1643 | ||
1644 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1645 | snprintf(con->uri, sizeof(con->uri), "/icons/%s.png", p->name); | |
1646 | else | |
1647 | { | |
1a18c85c | 1648 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
229681c1 MS |
1649 | { |
1650 | cupsdCloseClient(con); | |
1651 | return; | |
1652 | } | |
1653 | ||
1a18c85c | 1654 | cupsdLogRequest(con, HTTP_STATUS_NOT_FOUND); |
229681c1 MS |
1655 | break; |
1656 | } | |
1657 | } | |
1658 | else if (!WebInterface) | |
1659 | { | |
1a18c85c | 1660 | httpClearFields(con->http); |
229681c1 | 1661 | |
1a18c85c | 1662 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, NULL, CUPSD_AUTH_NONE)) |
229681c1 MS |
1663 | { |
1664 | cupsdCloseClient(con); | |
1665 | return; | |
1666 | } | |
1667 | ||
1a18c85c | 1668 | cupsdLogRequest(con, HTTP_STATUS_OK); |
229681c1 MS |
1669 | break; |
1670 | } | |
ef416fc2 | 1671 | |
1672 | if ((!strncmp(con->uri, "/admin", 6) && | |
1673 | strncmp(con->uri, "/admin/conf/", 12) && | |
1674 | strncmp(con->uri, "/admin/log/", 11)) || | |
1675 | !strncmp(con->uri, "/printers", 9) || | |
1676 | !strncmp(con->uri, "/classes", 8) || | |
1677 | !strncmp(con->uri, "/help", 5) || | |
1678 | !strncmp(con->uri, "/jobs", 5)) | |
1679 | { | |
1680 | /* | |
1681 | * CGI output... | |
1682 | */ | |
1683 | ||
1a18c85c | 1684 | httpClearFields(con->http); |
ef416fc2 | 1685 | |
1a18c85c | 1686 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, "text/html", CUPSD_AUTH_NONE)) |
f7deaa1a | 1687 | { |
1688 | cupsdCloseClient(con); | |
1689 | return; | |
1690 | } | |
ef416fc2 | 1691 | |
1a18c85c | 1692 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 1693 | } |
1694 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1695 | (strchr(con->uri + 12, '/') || | |
1696 | strlen(con->uri) == 12)) || | |
1697 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1698 | (strchr(con->uri + 11, '/') || | |
1699 | strlen(con->uri) == 11))) | |
1700 | { | |
1701 | /* | |
1702 | * HEAD can only be done to configuration files under | |
1703 | * /admin/conf... | |
1704 | */ | |
1705 | ||
1a18c85c MS |
1706 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1707 | "Request for subdirectory \"%s\".", con->uri); | |
bf3816c7 | 1708 | |
1a18c85c | 1709 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1710 | { |
1711 | cupsdCloseClient(con); | |
1712 | return; | |
1713 | } | |
ef416fc2 | 1714 | |
1a18c85c | 1715 | cupsdLogRequest(con, HTTP_STATUS_FORBIDDEN); |
ef416fc2 | 1716 | break; |
1717 | } | |
1718 | else if ((filename = get_file(con, &filestats, buf, | |
1719 | sizeof(buf))) == NULL) | |
1720 | { | |
1a18c85c MS |
1721 | httpClearFields(con->http); |
1722 | ||
1723 | if (!cupsdSendHeader(con, HTTP_STATUS_NOT_FOUND, "text/html", | |
f11a948a | 1724 | CUPSD_AUTH_NONE)) |
f7deaa1a | 1725 | { |
1726 | cupsdCloseClient(con); | |
1727 | return; | |
1728 | } | |
ef416fc2 | 1729 | |
1a18c85c | 1730 | cupsdLogRequest(con, HTTP_STATUS_NOT_FOUND); |
ef416fc2 | 1731 | } |
1732 | else if (!check_if_modified(con, &filestats)) | |
1733 | { | |
1a18c85c | 1734 | if (!cupsdSendError(con, HTTP_STATUS_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1735 | { |
1736 | cupsdCloseClient(con); | |
1737 | return; | |
1738 | } | |
ef416fc2 | 1739 | |
1a18c85c | 1740 | cupsdLogRequest(con, HTTP_STATUS_NOT_MODIFIED); |
ef416fc2 | 1741 | } |
1742 | else | |
1743 | { | |
1744 | /* | |
1745 | * Serve a file... | |
1746 | */ | |
1747 | ||
4400e98d | 1748 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1749 | if (type == NULL) |
5a9febac | 1750 | strlcpy(line, "text/plain", sizeof(line)); |
ef416fc2 | 1751 | else |
1752 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1753 | ||
1a18c85c | 1754 | httpClearFields(con->http); |
ef416fc2 | 1755 | |
1a18c85c MS |
1756 | httpSetField(con->http, HTTP_FIELD_LAST_MODIFIED, |
1757 | httpGetDateString(filestats.st_mtime)); | |
1758 | httpSetLength(con->http, (size_t)filestats.st_size); | |
ef416fc2 | 1759 | |
1a18c85c | 1760 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, line, CUPSD_AUTH_NONE)) |
f7deaa1a | 1761 | { |
1762 | cupsdCloseClient(con); | |
1763 | return; | |
1764 | } | |
ef416fc2 | 1765 | |
1a18c85c | 1766 | cupsdLogRequest(con, HTTP_STATUS_OK); |
f7deaa1a | 1767 | } |
ef416fc2 | 1768 | break; |
1769 | ||
1770 | default : | |
1771 | break; /* Anti-compiler-warning-code */ | |
1772 | } | |
1773 | } | |
1774 | } | |
1775 | ||
1776 | /* | |
1777 | * Handle any incoming data... | |
1778 | */ | |
1779 | ||
1a18c85c | 1780 | switch (httpGetState(con->http)) |
ef416fc2 | 1781 | { |
cb7f98ee | 1782 | case HTTP_STATE_PUT_RECV : |
f7deaa1a | 1783 | do |
ef416fc2 | 1784 | { |
1a18c85c | 1785 | if ((bytes = httpRead2(con->http, line, sizeof(line))) < 0) |
f7deaa1a | 1786 | { |
1a18c85c MS |
1787 | if (httpError(con->http) && httpError(con->http) != EPIPE) |
1788 | cupsdLogClient(con, CUPSD_LOG_DEBUG, | |
1789 | "HTTP_STATE_PUT_RECV Closing for error %d (%s)", | |
1790 | httpError(con->http), strerror(httpError(con->http))); | |
f11a948a | 1791 | else |
1a18c85c MS |
1792 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1793 | "HTTP_STATE_PUT_RECV Closing on EOF."); | |
f11a948a | 1794 | |
f7deaa1a | 1795 | cupsdCloseClient(con); |
1796 | return; | |
1797 | } | |
1798 | else if (bytes > 0) | |
1799 | { | |
1800 | con->bytes += bytes; | |
ef416fc2 | 1801 | |
1a18c85c | 1802 | if (write(con->file, line, (size_t)bytes) < bytes) |
f7deaa1a | 1803 | { |
1a18c85c MS |
1804 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1805 | "Unable to write %d bytes to \"%s\": %s", bytes, | |
1806 | con->filename, strerror(errno)); | |
ef416fc2 | 1807 | |
f7deaa1a | 1808 | close(con->file); |
1809 | con->file = -1; | |
1810 | unlink(con->filename); | |
1811 | cupsdClearString(&con->filename); | |
ef416fc2 | 1812 | |
1a18c85c | 1813 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1814 | { |
1815 | cupsdCloseClient(con); | |
1816 | return; | |
1817 | } | |
1818 | } | |
ef416fc2 | 1819 | } |
f7deaa1a | 1820 | } |
1a18c85c | 1821 | while (httpGetState(con->http) == HTTP_STATE_PUT_RECV && httpGetReady(con->http)); |
ef416fc2 | 1822 | |
1a18c85c | 1823 | if (httpGetState(con->http) == HTTP_STATE_STATUS) |
ef416fc2 | 1824 | { |
1825 | /* | |
1826 | * End of file, see how big it is... | |
1827 | */ | |
1828 | ||
1829 | fstat(con->file, &filestats); | |
1830 | ||
ef416fc2 | 1831 | close(con->file); |
1832 | con->file = -1; | |
1833 | ||
1834 | if (filestats.st_size > MaxRequestSize && | |
1835 | MaxRequestSize > 0) | |
1836 | { | |
1837 | /* | |
1838 | * Request is too big; remove it and send an error... | |
1839 | */ | |
1840 | ||
ef416fc2 | 1841 | unlink(con->filename); |
1842 | cupsdClearString(&con->filename); | |
1843 | ||
1a18c85c | 1844 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1845 | { |
1846 | cupsdCloseClient(con); | |
1847 | return; | |
1848 | } | |
ef416fc2 | 1849 | } |
1850 | ||
1851 | /* | |
1852 | * Install the configuration file... | |
1853 | */ | |
1854 | ||
c41769ff | 1855 | status = install_cupsd_conf(con); |
ef416fc2 | 1856 | |
1857 | /* | |
1858 | * Return the status to the client... | |
1859 | */ | |
1860 | ||
5bd77a73 | 1861 | if (!cupsdSendError(con, status, CUPSD_AUTH_NONE)) |
f7deaa1a | 1862 | { |
1863 | cupsdCloseClient(con); | |
1864 | return; | |
1865 | } | |
ef416fc2 | 1866 | } |
1867 | break; | |
1868 | ||
cb7f98ee | 1869 | case HTTP_STATE_POST_RECV : |
f7deaa1a | 1870 | do |
ef416fc2 | 1871 | { |
f11a948a | 1872 | if (con->request && con->file < 0) |
ef416fc2 | 1873 | { |
f7deaa1a | 1874 | /* |
1875 | * Grab any request data from the connection... | |
1876 | */ | |
ef416fc2 | 1877 | |
1a18c85c | 1878 | if (!httpWait(con->http, 0)) |
215ef638 MS |
1879 | return; |
1880 | ||
1a18c85c | 1881 | if ((ipp_state = ippRead(con->http, con->request)) == IPP_STATE_ERROR) |
ef416fc2 | 1882 | { |
1a18c85c MS |
1883 | cupsdLogClient(con, CUPSD_LOG_ERROR, "IPP read error: %s", |
1884 | cupsLastErrorString()); | |
f7deaa1a | 1885 | |
1a18c85c | 1886 | cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 1887 | cupsdCloseClient(con); |
1888 | return; | |
ef416fc2 | 1889 | } |
1a18c85c | 1890 | else if (ipp_state != IPP_STATE_DATA) |
f7deaa1a | 1891 | { |
1a18c85c | 1892 | if (httpGetState(con->http) == HTTP_STATE_POST_SEND) |
f7deaa1a | 1893 | { |
1a18c85c | 1894 | cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 1895 | cupsdCloseClient(con); |
1896 | return; | |
1897 | } | |
ef416fc2 | 1898 | |
1a18c85c | 1899 | if (httpGetReady(con->http)) |
6961465f | 1900 | continue; |
f7deaa1a | 1901 | break; |
1902 | } | |
1903 | else | |
f11a948a | 1904 | { |
1a18c85c MS |
1905 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "%d.%d %s %d", |
1906 | con->request->request.op.version[0], | |
f11a948a MS |
1907 | con->request->request.op.version[1], |
1908 | ippOpString(con->request->request.op.operation_id), | |
1909 | con->request->request.op.request_id); | |
5d2cc5d3 | 1910 | con->bytes += (off_t)ippLength(con->request); |
f11a948a | 1911 | } |
f7deaa1a | 1912 | } |
ef416fc2 | 1913 | |
1a18c85c | 1914 | if (con->file < 0 && httpGetState(con->http) != HTTP_STATE_POST_SEND) |
f7deaa1a | 1915 | { |
1916 | /* | |
1917 | * Create a file as needed for the request data... | |
1918 | */ | |
ef416fc2 | 1919 | |
f11a948a MS |
1920 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, |
1921 | request_id ++); | |
f7deaa1a | 1922 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); |
ef416fc2 | 1923 | |
f7deaa1a | 1924 | if (con->file < 0) |
1925 | { | |
1a18c85c MS |
1926 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1927 | "Unable to create request file \"%s\": %s", | |
1928 | con->filename, strerror(errno)); | |
a4924f6c | 1929 | |
1a18c85c | 1930 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1931 | { |
1932 | cupsdCloseClient(con); | |
1933 | return; | |
1934 | } | |
1935 | } | |
ef416fc2 | 1936 | |
f7deaa1a | 1937 | fchmod(con->file, 0640); |
1938 | fchown(con->file, RunUser, Group); | |
1939 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1940 | } | |
ef416fc2 | 1941 | |
1a18c85c | 1942 | if (httpGetState(con->http) != HTTP_STATE_POST_SEND) |
ef416fc2 | 1943 | { |
1a18c85c | 1944 | if (!httpWait(con->http, 0)) |
cb7f98ee | 1945 | return; |
1a18c85c | 1946 | else if ((bytes = httpRead2(con->http, line, sizeof(line))) < 0) |
f7deaa1a | 1947 | { |
1a18c85c MS |
1948 | if (httpError(con->http) && httpError(con->http) != EPIPE) |
1949 | cupsdLogClient(con, CUPSD_LOG_DEBUG, | |
1950 | "HTTP_STATE_POST_SEND Closing for error %d (%s)", | |
1951 | httpError(con->http), strerror(httpError(con->http))); | |
f11a948a | 1952 | else |
1a18c85c MS |
1953 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1954 | "HTTP_STATE_POST_SEND Closing on EOF."); | |
f11a948a | 1955 | |
f7deaa1a | 1956 | cupsdCloseClient(con); |
1957 | return; | |
1958 | } | |
1959 | else if (bytes > 0) | |
1960 | { | |
1961 | con->bytes += bytes; | |
ef416fc2 | 1962 | |
1a18c85c | 1963 | if (write(con->file, line, (size_t)bytes) < bytes) |
f7deaa1a | 1964 | { |
1a18c85c MS |
1965 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1966 | "Unable to write %d bytes to \"%s\": %s", | |
1967 | bytes, con->filename, strerror(errno)); | |
ef416fc2 | 1968 | |
f7deaa1a | 1969 | close(con->file); |
1970 | con->file = -1; | |
1971 | unlink(con->filename); | |
1972 | cupsdClearString(&con->filename); | |
ef416fc2 | 1973 | |
1a18c85c | 1974 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, |
f11a948a | 1975 | CUPSD_AUTH_NONE)) |
f7deaa1a | 1976 | { |
1977 | cupsdCloseClient(con); | |
1978 | return; | |
1979 | } | |
1980 | } | |
1981 | } | |
1a18c85c | 1982 | else if (httpGetState(con->http) == HTTP_STATE_POST_RECV) |
f7deaa1a | 1983 | return; |
1a18c85c | 1984 | else if (httpGetState(con->http) != HTTP_STATE_POST_SEND) |
f7deaa1a | 1985 | { |
1a18c85c MS |
1986 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1987 | "Closing on unexpected state %s.", | |
1988 | httpStateString(httpGetState(con->http))); | |
f7deaa1a | 1989 | cupsdCloseClient(con); |
1990 | return; | |
ef416fc2 | 1991 | } |
1992 | } | |
f7deaa1a | 1993 | } |
1a18c85c | 1994 | while (httpGetState(con->http) == HTTP_STATE_POST_RECV && httpGetReady(con->http)); |
ef416fc2 | 1995 | |
1a18c85c | 1996 | if (httpGetState(con->http) == HTTP_STATE_POST_SEND) |
ef416fc2 | 1997 | { |
1998 | if (con->file >= 0) | |
1999 | { | |
2000 | fstat(con->file, &filestats); | |
2001 | ||
ef416fc2 | 2002 | close(con->file); |
2003 | con->file = -1; | |
2004 | ||
2005 | if (filestats.st_size > MaxRequestSize && | |
2006 | MaxRequestSize > 0) | |
2007 | { | |
2008 | /* | |
2009 | * Request is too big; remove it and send an error... | |
2010 | */ | |
2011 | ||
ef416fc2 | 2012 | unlink(con->filename); |
2013 | cupsdClearString(&con->filename); | |
2014 | ||
2015 | if (con->request) | |
2016 | { | |
2017 | /* | |
2018 | * Delete any IPP request data... | |
2019 | */ | |
2020 | ||
2021 | ippDelete(con->request); | |
2022 | con->request = NULL; | |
2023 | } | |
2024 | ||
1a18c85c | 2025 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2026 | { |
2027 | cupsdCloseClient(con); | |
2028 | return; | |
2029 | } | |
ef416fc2 | 2030 | } |
f8b3a85b MS |
2031 | else if (filestats.st_size == 0) |
2032 | { | |
2033 | /* | |
2034 | * Don't allow empty file... | |
2035 | */ | |
2036 | ||
2037 | unlink(con->filename); | |
2038 | cupsdClearString(&con->filename); | |
2039 | } | |
ef416fc2 | 2040 | |
2041 | if (con->command) | |
2042 | { | |
2043 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
2044 | { | |
1a18c85c | 2045 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 2046 | { |
2047 | cupsdCloseClient(con); | |
2048 | return; | |
2049 | } | |
ef416fc2 | 2050 | } |
2051 | else | |
1a18c85c | 2052 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 2053 | } |
2054 | } | |
2055 | ||
2056 | if (con->request) | |
f7deaa1a | 2057 | { |
2058 | cupsdProcessIPPRequest(con); | |
bc44d920 | 2059 | |
2060 | if (con->filename) | |
2061 | { | |
bc44d920 | 2062 | unlink(con->filename); |
2063 | cupsdClearString(&con->filename); | |
2064 | } | |
2065 | ||
f7deaa1a | 2066 | return; |
2067 | } | |
ef416fc2 | 2068 | } |
2069 | break; | |
2070 | ||
2071 | default : | |
2072 | break; /* Anti-compiler-warning-code */ | |
2073 | } | |
2074 | ||
1a18c85c | 2075 | if (httpGetState(con->http) == HTTP_STATE_WAITING) |
3dfe78b3 | 2076 | { |
1a18c85c | 2077 | if (!httpGetKeepAlive(con->http)) |
f11a948a | 2078 | { |
1a18c85c MS |
2079 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2080 | "Closing because Keep-Alive is disabled."); | |
3dfe78b3 | 2081 | cupsdCloseClient(con); |
f11a948a | 2082 | } |
3dfe78b3 MS |
2083 | else |
2084 | { | |
2085 | cupsArrayRemove(ActiveClients, con); | |
2086 | cupsdSetBusyState(); | |
2087 | } | |
2088 | } | |
ef416fc2 | 2089 | } |
2090 | ||
2091 | ||
2092 | /* | |
2093 | * 'cupsdSendCommand()' - Send output from a command via HTTP. | |
2094 | */ | |
2095 | ||
2096 | int /* O - 1 on success, 0 on failure */ | |
2097 | cupsdSendCommand( | |
2098 | cupsd_client_t *con, /* I - Client connection */ | |
2099 | char *command, /* I - Command to run */ | |
2100 | char *options, /* I - Command-line options */ | |
2101 | int root) /* I - Run as root? */ | |
2102 | { | |
2103 | int fd; /* Standard input file descriptor */ | |
2104 | ||
2105 | ||
2106 | if (con->filename) | |
ed486911 | 2107 | { |
ef416fc2 | 2108 | fd = open(con->filename, O_RDONLY); |
ef416fc2 | 2109 | |
ed486911 | 2110 | if (fd < 0) |
2111 | { | |
1a18c85c MS |
2112 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
2113 | "Unable to open \"%s\" for reading: %s", | |
2114 | con->filename ? con->filename : "/dev/null", | |
2115 | strerror(errno)); | |
ed486911 | 2116 | return (0); |
2117 | } | |
ef416fc2 | 2118 | |
ed486911 | 2119 | fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); |
2120 | } | |
2121 | else | |
2122 | fd = -1; | |
ef416fc2 | 2123 | |
1a18c85c MS |
2124 | con->pipe_pid = pipe_command(con, fd, &(con->file), command, options, root); |
2125 | con->pipe_status = HTTP_STATUS_OK; | |
2126 | ||
2127 | httpClearFields(con->http); | |
ef416fc2 | 2128 | |
ed486911 | 2129 | if (fd >= 0) |
2130 | close(fd); | |
ef416fc2 | 2131 | |
1a18c85c MS |
2132 | cupsdLogClient(con, CUPSD_LOG_INFO, "Started \"%s\" (pid=%d, file=%d)", |
2133 | command, con->pipe_pid, con->file); | |
ef416fc2 | 2134 | |
2135 | if (con->pipe_pid == 0) | |
2136 | return (0); | |
2137 | ||
2138 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
2139 | ||
f899b121 | 2140 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
ef416fc2 | 2141 | |
1a18c85c | 2142 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for CGI data."); |
1bc82dd9 | 2143 | |
ef416fc2 | 2144 | con->sent_header = 0; |
2145 | con->file_ready = 0; | |
2146 | con->got_fields = 0; | |
68b10830 | 2147 | con->header_used = 0; |
ef416fc2 | 2148 | |
2149 | return (1); | |
2150 | } | |
2151 | ||
2152 | ||
2153 | /* | |
2154 | * 'cupsdSendError()' - Send an error message via HTTP. | |
2155 | */ | |
2156 | ||
2157 | int /* O - 1 if successful, 0 otherwise */ | |
2158 | cupsdSendError(cupsd_client_t *con, /* I - Connection */ | |
f899b121 | 2159 | http_status_t code, /* I - Error code */ |
2160 | int auth_type)/* I - Authentication type */ | |
ef416fc2 | 2161 | { |
1a18c85c MS |
2162 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cupsdSendError code=%d, auth_type=%d", |
2163 | code, auth_type); | |
b9faaae1 | 2164 | |
4744bd90 | 2165 | #ifdef HAVE_SSL |
2166 | /* | |
2167 | * Force client to upgrade for authentication if that is how the | |
2168 | * server is configured... | |
2169 | */ | |
2170 | ||
1a18c85c MS |
2171 | if (code == HTTP_STATUS_UNAUTHORIZED && |
2172 | DefaultEncryption == HTTP_ENCRYPTION_REQUIRED && | |
2173 | _cups_strcasecmp(httpGetHostname(con->http, NULL, 0), "localhost") && | |
2174 | !httpIsEncrypted(con->http)) | |
4744bd90 | 2175 | { |
1a18c85c | 2176 | code = HTTP_STATUS_UPGRADE_REQUIRED; |
4744bd90 | 2177 | } |
2178 | #endif /* HAVE_SSL */ | |
2179 | ||
ef416fc2 | 2180 | /* |
2181 | * Put the request in the access_log file... | |
2182 | */ | |
2183 | ||
2184 | cupsdLogRequest(con, code); | |
2185 | ||
ef416fc2 | 2186 | /* |
2187 | * To work around bugs in some proxies, don't use Keep-Alive for some | |
2188 | * error messages... | |
f7deaa1a | 2189 | * |
2190 | * Kerberos authentication doesn't work without Keep-Alive, so | |
2191 | * never disable it in that case. | |
ef416fc2 | 2192 | */ |
2193 | ||
1a18c85c | 2194 | httpClearFields(con->http); |
ef416fc2 | 2195 | |
1a18c85c MS |
2196 | if (code >= HTTP_STATUS_BAD_REQUEST && con->type != CUPSD_AUTH_NEGOTIATE) |
2197 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); | |
ef416fc2 | 2198 | |
1a18c85c MS |
2199 | if (httpGetVersion(con->http) >= HTTP_VERSION_1_1 && |
2200 | httpGetKeepAlive(con->http) == HTTP_KEEPALIVE_OFF) | |
2201 | httpSetField(con->http, HTTP_FIELD_CONNECTION, "close"); | |
ef416fc2 | 2202 | |
1a18c85c | 2203 | if (code >= HTTP_STATUS_BAD_REQUEST) |
ef416fc2 | 2204 | { |
2205 | /* | |
2206 | * Send a human-readable error message. | |
2207 | */ | |
2208 | ||
80ca4592 | 2209 | char message[4096], /* Message for user */ |
2210 | urltext[1024], /* URL redirection text */ | |
2211 | redirect[1024]; /* Redirection link */ | |
ef416fc2 | 2212 | const char *text; /* Status-specific text */ |
2213 | ||
80ca4592 | 2214 | |
2215 | redirect[0] = '\0'; | |
2216 | ||
1a18c85c | 2217 | if (code == HTTP_STATUS_UNAUTHORIZED) |
ef416fc2 | 2218 | text = _cupsLangString(con->language, |
2219 | _("Enter your username and password or the " | |
2220 | "root username and password to access this " | |
f7deaa1a | 2221 | "page. If you are using Kerberos authentication, " |
2222 | "make sure you have a valid Kerberos ticket.")); | |
1a18c85c | 2223 | else if (code == HTTP_STATUS_UPGRADE_REQUIRED) |
80ca4592 | 2224 | { |
2225 | text = urltext; | |
2226 | ||
2227 | snprintf(urltext, sizeof(urltext), | |
2228 | _cupsLangString(con->language, | |
2229 | _("You must access this page using the URL " | |
2230 | "<A HREF=\"https://%s:%d%s\">" | |
2231 | "https://%s:%d%s</A>.")), | |
2232 | con->servername, con->serverport, con->uri, | |
2233 | con->servername, con->serverport, con->uri); | |
2234 | ||
2235 | snprintf(redirect, sizeof(redirect), | |
b86bc4cf | 2236 | "<META HTTP-EQUIV=\"Refresh\" " |
2237 | "CONTENT=\"3;URL=https://%s:%d%s\">\n", | |
80ca4592 | 2238 | con->servername, con->serverport, con->uri); |
2239 | } | |
1a18c85c | 2240 | else if (code == HTTP_STATUS_CUPS_WEBIF_DISABLED) |
229681c1 MS |
2241 | text = _cupsLangString(con->language, |
2242 | _("The web interface is currently disabled. Run " | |
2243 | "\"cupsctl WebInterface=yes\" to enable it.")); | |
ef416fc2 | 2244 | else |
2245 | text = ""; | |
2246 | ||
2247 | snprintf(message, sizeof(message), | |
745129be MS |
2248 | "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" " |
2249 | "\"http://www.w3.org/TR/html4/loose.dtd\">\n" | |
ef416fc2 | 2250 | "<HTML>\n" |
2251 | "<HEAD>\n" | |
2252 | "\t<META HTTP-EQUIV=\"Content-Type\" " | |
2253 | "CONTENT=\"text/html; charset=utf-8\">\n" | |
229681c1 | 2254 | "\t<TITLE>%s - " CUPS_SVERSION "</TITLE>\n" |
ef416fc2 | 2255 | "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" " |
2256 | "HREF=\"/cups.css\">\n" | |
80ca4592 | 2257 | "%s" |
ef416fc2 | 2258 | "</HEAD>\n" |
2259 | "<BODY>\n" | |
229681c1 | 2260 | "<H1>%s</H1>\n" |
ef416fc2 | 2261 | "<P>%s</P>\n" |
2262 | "</BODY>\n" | |
2263 | "</HTML>\n", | |
1a18c85c MS |
2264 | _httpStatus(con->language, code), redirect, |
2265 | _httpStatus(con->language, code), text); | |
ef416fc2 | 2266 | |
1a18c85c MS |
2267 | /* |
2268 | * Send an error message back to the client. If the error code is a | |
2269 | * 400 or 500 series, make sure the message contains some text, too! | |
2270 | */ | |
2271 | ||
2272 | size_t length = strlen(message); /* Length of message */ | |
2273 | ||
2274 | httpSetLength(con->http, length); | |
2275 | ||
2276 | if (!cupsdSendHeader(con, code, "text/html", auth_type)) | |
ef416fc2 | 2277 | return (0); |
1a18c85c MS |
2278 | |
2279 | if (httpWrite2(con->http, message, length) < 0) | |
ef416fc2 | 2280 | return (0); |
1a18c85c MS |
2281 | |
2282 | if (httpFlushWrite(con->http) < 0) | |
ef416fc2 | 2283 | return (0); |
2284 | } | |
1a18c85c MS |
2285 | else |
2286 | { | |
2287 | httpSetField(con->http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 | 2288 | |
1a18c85c MS |
2289 | if (!cupsdSendHeader(con, code, NULL, auth_type)) |
2290 | return (0); | |
2291 | } | |
ef416fc2 | 2292 | |
2293 | return (1); | |
2294 | } | |
2295 | ||
2296 | ||
ef416fc2 | 2297 | /* |
2298 | * 'cupsdSendHeader()' - Send an HTTP request. | |
2299 | */ | |
2300 | ||
2301 | int /* O - 1 on success, 0 on failure */ | |
f899b121 | 2302 | cupsdSendHeader( |
2303 | cupsd_client_t *con, /* I - Client to send to */ | |
2304 | http_status_t code, /* I - HTTP status code */ | |
2305 | char *type, /* I - MIME type of document */ | |
2306 | int auth_type) /* I - Type of authentication */ | |
ef416fc2 | 2307 | { |
5a738aea | 2308 | char auth_str[1024]; /* Authorization string */ |
f7deaa1a | 2309 | |
2310 | ||
1a18c85c MS |
2311 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "cupsdSendHeader: code=%d, type=\"%s\", auth_type=%d", code, type, auth_type); |
2312 | ||
4744bd90 | 2313 | /* |
2314 | * Send the HTTP status header... | |
2315 | */ | |
2316 | ||
1a18c85c | 2317 | if (code == HTTP_STATUS_CUPS_WEBIF_DISABLED) |
229681c1 MS |
2318 | { |
2319 | /* | |
2320 | * Treat our special "web interface is disabled" status as "200 OK" for web | |
2321 | * browsers. | |
2322 | */ | |
2323 | ||
1a18c85c | 2324 | code = HTTP_STATUS_OK; |
229681c1 | 2325 | } |
b423cd4c | 2326 | |
ef416fc2 | 2327 | if (ServerHeader) |
1a18c85c MS |
2328 | httpSetField(con->http, HTTP_FIELD_SERVER, ServerHeader); |
2329 | ||
2330 | if (code == HTTP_STATUS_METHOD_NOT_ALLOWED) | |
2331 | httpSetField(con->http, HTTP_FIELD_ALLOW, "GET, HEAD, OPTIONS, POST, PUT"); | |
ef416fc2 | 2332 | |
1a18c85c | 2333 | if (code == HTTP_STATUS_UNAUTHORIZED) |
ef416fc2 | 2334 | { |
5bd77a73 | 2335 | if (auth_type == CUPSD_AUTH_NONE) |
f899b121 | 2336 | { |
5bd77a73 | 2337 | if (!con->best || con->best->type <= CUPSD_AUTH_NONE) |
dcb445bc | 2338 | auth_type = cupsdDefaultAuthType(); |
f899b121 | 2339 | else |
2340 | auth_type = con->best->type; | |
2341 | } | |
f7deaa1a | 2342 | |
2343 | auth_str[0] = '\0'; | |
2344 | ||
1a18c85c | 2345 | if (auth_type == CUPSD_AUTH_BASIC) |
f7deaa1a | 2346 | strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str)); |
f7deaa1a | 2347 | #ifdef HAVE_GSSAPI |
eac3a0a0 | 2348 | else if (auth_type == CUPSD_AUTH_NEGOTIATE) |
6961465f MS |
2349 | { |
2350 | # ifdef AF_LOCAL | |
1a18c85c | 2351 | if (httpAddrFamily(httpGetAddress(con->http)) == AF_LOCAL) |
6961465f MS |
2352 | strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str)); |
2353 | else | |
2354 | # endif /* AF_LOCAL */ | |
f7deaa1a | 2355 | strlcpy(auth_str, "Negotiate", sizeof(auth_str)); |
6961465f | 2356 | } |
f7deaa1a | 2357 | #endif /* HAVE_GSSAPI */ |
2358 | ||
e07d4801 | 2359 | if (con->best && auth_type != CUPSD_AUTH_NEGOTIATE && |
1a18c85c | 2360 | !_cups_strcasecmp(httpGetHostname(con->http, NULL, 0), "localhost")) |
ef416fc2 | 2361 | { |
e07d4801 MS |
2362 | /* |
2363 | * Add a "trc" (try root certification) parameter for local non-Kerberos | |
2364 | * requests when the request requires system group membership - then the | |
2365 | * client knows the root certificate can/should be used. | |
2366 | * | |
f3c17241 | 2367 | * Also, for OS X we also look for @AUTHKEY and add an "authkey" |
e07d4801 MS |
2368 | * parameter as needed... |
2369 | */ | |
2370 | ||
10d09e33 MS |
2371 | char *name, /* Current user name */ |
2372 | *auth_key; /* Auth key buffer */ | |
f7deaa1a | 2373 | size_t auth_size; /* Size of remaining buffer */ |
2374 | ||
f7deaa1a | 2375 | auth_key = auth_str + strlen(auth_str); |
1a18c85c | 2376 | auth_size = sizeof(auth_str) - (size_t)(auth_key - auth_str); |
f7deaa1a | 2377 | |
10d09e33 MS |
2378 | for (name = (char *)cupsArrayFirst(con->best->names); |
2379 | name; | |
2380 | name = (char *)cupsArrayNext(con->best->names)) | |
f7deaa1a | 2381 | { |
e07d4801 | 2382 | #ifdef HAVE_AUTHORIZATION_H |
88f9aafc | 2383 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9)) |
f7deaa1a | 2384 | { |
10d09e33 | 2385 | snprintf(auth_key, auth_size, ", authkey=\"%s\"", name + 9); |
f7deaa1a | 2386 | /* end parenthesis is stripped in conf.c */ |
2387 | break; | |
2388 | } | |
e07d4801 MS |
2389 | else |
2390 | #endif /* HAVE_AUTHORIZATION_H */ | |
88f9aafc | 2391 | if (!_cups_strcasecmp(name, "@SYSTEM")) |
f7deaa1a | 2392 | { |
e07d4801 MS |
2393 | #ifdef HAVE_AUTHORIZATION_H |
2394 | if (SystemGroupAuthKey) | |
2395 | snprintf(auth_key, auth_size, | |
07ed0e9a | 2396 | ", authkey=\"%s\"", |
e07d4801 MS |
2397 | SystemGroupAuthKey); |
2398 | else | |
2399 | #else | |
f11a948a | 2400 | strlcpy(auth_key, ", trc=\"y\"", auth_size); |
e07d4801 | 2401 | #endif /* HAVE_AUTHORIZATION_H */ |
f7deaa1a | 2402 | break; |
2403 | } | |
2404 | } | |
ef416fc2 | 2405 | } |
f7deaa1a | 2406 | |
bc44d920 | 2407 | if (auth_str[0]) |
2408 | { | |
1a18c85c | 2409 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "WWW-Authenticate: %s", auth_str); |
bc44d920 | 2410 | |
1a18c85c | 2411 | httpSetField(con->http, HTTP_FIELD_WWW_AUTHENTICATE, auth_str); |
bc44d920 | 2412 | } |
ef416fc2 | 2413 | } |
2414 | ||
e1d6a774 | 2415 | if (con->language && strcmp(con->language->language, "C")) |
1a18c85c | 2416 | httpSetField(con->http, HTTP_FIELD_CONTENT_LANGUAGE, con->language->language); |
ef416fc2 | 2417 | |
e1d6a774 | 2418 | if (type) |
ef416fc2 | 2419 | { |
2420 | if (!strcmp(type, "text/html")) | |
1a18c85c MS |
2421 | httpSetField(con->http, HTTP_FIELD_CONTENT_TYPE, "text/html; charset=utf-8"); |
2422 | else | |
2423 | httpSetField(con->http, HTTP_FIELD_CONTENT_TYPE, type); | |
ef416fc2 | 2424 | } |
2425 | ||
1a18c85c | 2426 | return (!httpWriteResponse(con->http, code)); |
ef416fc2 | 2427 | } |
2428 | ||
2429 | ||
2430 | /* | |
2431 | * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs. | |
2432 | */ | |
2433 | ||
2434 | void | |
2435 | cupsdUpdateCGI(void) | |
2436 | { | |
2437 | char *ptr, /* Pointer to end of line in buffer */ | |
2438 | message[1024]; /* Pointer to message text */ | |
2439 | int loglevel; /* Log level for message */ | |
2440 | ||
2441 | ||
2442 | while ((ptr = cupsdStatBufUpdate(CGIStatusBuffer, &loglevel, | |
2443 | message, sizeof(message))) != NULL) | |
f0ab5bff MS |
2444 | { |
2445 | if (loglevel == CUPSD_LOG_INFO) | |
2446 | cupsdLogMessage(CUPSD_LOG_INFO, "%s", message); | |
2447 | ||
ef416fc2 | 2448 | if (!strchr(CGIStatusBuffer->buffer, '\n')) |
2449 | break; | |
f0ab5bff | 2450 | } |
ef416fc2 | 2451 | |
d09495fa | 2452 | if (ptr == NULL && !CGIStatusBuffer->bufused) |
ef416fc2 | 2453 | { |
2454 | /* | |
2455 | * Fatal error on pipe - should never happen! | |
2456 | */ | |
2457 | ||
2458 | cupsdLogMessage(CUPSD_LOG_CRIT, | |
2459 | "cupsdUpdateCGI: error reading from CGI error pipe - %s", | |
2460 | strerror(errno)); | |
2461 | } | |
2462 | } | |
2463 | ||
2464 | ||
2465 | /* | |
2466 | * 'cupsdWriteClient()' - Write data to a client as needed. | |
2467 | */ | |
2468 | ||
f7deaa1a | 2469 | void |
ef416fc2 | 2470 | cupsdWriteClient(cupsd_client_t *con) /* I - Client connection */ |
2471 | { | |
68b10830 MS |
2472 | int bytes, /* Number of bytes written */ |
2473 | field_col; /* Current column */ | |
2474 | char *bufptr, /* Pointer into buffer */ | |
2475 | *bufend; /* Pointer to end of buffer */ | |
ef416fc2 | 2476 | ipp_state_t ipp_state; /* IPP state value */ |
2477 | ||
2478 | ||
1a18c85c MS |
2479 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "con->http=%p", con->http); |
2480 | cupsdLogClient(con, CUPSD_LOG_DEBUG, | |
2481 | "cupsdWriteClient " | |
2482 | "error=%d, " | |
2483 | "used=%d, " | |
2484 | "state=%s, " | |
2485 | "data_encoding=HTTP_ENCODING_%s, " | |
2486 | "data_remaining=" CUPS_LLFMT ", " | |
2487 | "response=%p(%s), " | |
2488 | "pipe_pid=%d, " | |
2489 | "file=%d", | |
2490 | httpError(con->http), (int)httpGetReady(con->http), | |
2491 | httpStateString(httpGetState(con->http)), | |
2492 | httpIsChunked(con->http) ? "CHUNKED" : "LENGTH", | |
2493 | CUPS_LLCAST httpGetLength2(con->http), | |
2494 | con->response, | |
2495 | con->response ? ippStateString(ippGetState(con->request)) : "", | |
2496 | con->pipe_pid, con->file); | |
2497 | ||
2498 | if (httpGetState(con->http) != HTTP_STATE_GET_SEND && | |
2499 | httpGetState(con->http) != HTTP_STATE_POST_SEND) | |
8b116e60 MS |
2500 | { |
2501 | /* | |
2502 | * If we get called in the wrong state, then something went wrong with the | |
2503 | * connection and we need to shut it down... | |
2504 | */ | |
2505 | ||
1a18c85c MS |
2506 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing on unexpected HTTP write state %s.", |
2507 | httpStateString(httpGetState(con->http))); | |
8b116e60 | 2508 | cupsdCloseClient(con); |
f7deaa1a | 2509 | return; |
8b116e60 | 2510 | } |
f7deaa1a | 2511 | |
2512 | if (con->pipe_pid) | |
2513 | { | |
2514 | /* | |
2515 | * Make sure we select on the CGI output... | |
2516 | */ | |
2517 | ||
f899b121 | 2518 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
f7deaa1a | 2519 | |
1a18c85c | 2520 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for CGI data."); |
1bc82dd9 | 2521 | |
f7deaa1a | 2522 | if (!con->file_ready) |
2523 | { | |
2524 | /* | |
2525 | * Try again later when there is CGI output available... | |
2526 | */ | |
2527 | ||
1a18c85c | 2528 | cupsdRemoveSelect(httpGetFd(con->http)); |
f7deaa1a | 2529 | return; |
2530 | } | |
2531 | ||
2532 | con->file_ready = 0; | |
2533 | } | |
ef416fc2 | 2534 | |
71f63681 MS |
2535 | bytes = (ssize_t)(sizeof(con->header) - (size_t)con->header_used); |
2536 | ||
1a18c85c | 2537 | if (!con->pipe_pid && bytes > (ssize_t)httpGetRemaining(con->http)) |
71f63681 MS |
2538 | { |
2539 | /* | |
2540 | * Limit GET bytes to original size of file (STR #3265)... | |
2541 | */ | |
2542 | ||
1a18c85c | 2543 | bytes = (ssize_t)httpGetRemaining(con->http); |
71f63681 MS |
2544 | } |
2545 | ||
1a18c85c | 2546 | if (con->response && con->response->state != IPP_STATE_DATA) |
ef416fc2 | 2547 | { |
1a18c85c | 2548 | size_t wused = httpGetPending(con->http); /* Previous write buffer use */ |
94436c5a MS |
2549 | |
2550 | do | |
2551 | { | |
2552 | /* | |
2553 | * Write a single attribute or the IPP message header... | |
2554 | */ | |
2555 | ||
1a18c85c | 2556 | ipp_state = ippWrite(con->http, con->response); |
94436c5a MS |
2557 | |
2558 | /* | |
2559 | * If the write buffer has been flushed, stop buffering up attributes... | |
2560 | */ | |
2561 | ||
1a18c85c | 2562 | if (httpGetPending(con->http) <= wused) |
94436c5a MS |
2563 | break; |
2564 | } | |
2565 | while (ipp_state != IPP_STATE_DATA && ipp_state != IPP_STATE_ERROR); | |
2566 | ||
1a18c85c MS |
2567 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2568 | "Writing IPP response, ipp_state=%s, old " | |
2569 | "wused=" CUPS_LLFMT ", new wused=" CUPS_LLFMT, | |
2570 | ippStateString(ipp_state), | |
2571 | CUPS_LLCAST wused, CUPS_LLCAST httpGetPending(con->http)); | |
f2d18633 | 2572 | |
1a18c85c MS |
2573 | if (httpGetPending(con->http) > 0) |
2574 | httpFlushWrite(con->http); | |
94436c5a MS |
2575 | |
2576 | bytes = ipp_state != IPP_STATE_ERROR && | |
2577 | (con->file >= 0 || ipp_state != IPP_STATE_DATA); | |
21f36711 | 2578 | |
1a18c85c MS |
2579 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2580 | "bytes=%d, http_state=%d, data_remaining=" CUPS_LLFMT, | |
2581 | (int)bytes, httpGetState(con->http), | |
2582 | CUPS_LLCAST httpGetLength2(con->http)); | |
ef416fc2 | 2583 | } |
71f63681 | 2584 | else if ((bytes = read(con->file, con->header + con->header_used, (size_t)bytes)) > 0) |
ef416fc2 | 2585 | { |
68b10830 MS |
2586 | con->header_used += bytes; |
2587 | ||
ef416fc2 | 2588 | if (con->pipe_pid && !con->got_fields) |
2589 | { | |
2590 | /* | |
2591 | * Inspect the data for Content-Type and other fields. | |
2592 | */ | |
2593 | ||
68b10830 MS |
2594 | for (bufptr = con->header, bufend = con->header + con->header_used, |
2595 | field_col = 0; | |
2596 | !con->got_fields && bufptr < bufend; | |
2597 | bufptr ++) | |
d1c13e16 | 2598 | { |
ef416fc2 | 2599 | if (*bufptr == '\n') |
2600 | { | |
2601 | /* | |
2602 | * Send line to client... | |
2603 | */ | |
2604 | ||
68b10830 | 2605 | if (bufptr > con->header && bufptr[-1] == '\r') |
ef416fc2 | 2606 | bufptr[-1] = '\0'; |
2607 | *bufptr++ = '\0'; | |
2608 | ||
1a18c85c | 2609 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Script header: %s", con->header); |
ef416fc2 | 2610 | |
2611 | if (!con->sent_header) | |
2612 | { | |
2613 | /* | |
2614 | * Handle redirection and CGI status codes... | |
2615 | */ | |
2616 | ||
1a18c85c MS |
2617 | http_field_t field; /* HTTP field */ |
2618 | char *value = strchr(con->header, ':'); | |
2619 | /* Value of field */ | |
2620 | ||
2621 | if (value) | |
d6ae789d | 2622 | { |
1a18c85c MS |
2623 | *value++ = '\0'; |
2624 | while (isspace(*value & 255)) | |
2625 | value ++; | |
2626 | } | |
321d8d57 | 2627 | |
1a18c85c | 2628 | field = httpFieldValue(con->header); |
07725fee | 2629 | |
1a18c85c MS |
2630 | if (field != HTTP_FIELD_UNKNOWN && value) |
2631 | { | |
2632 | httpSetField(con->http, field, value); | |
2633 | ||
2634 | if (field == HTTP_FIELD_LOCATION) | |
2635 | { | |
2636 | con->pipe_status = HTTP_STATUS_SEE_OTHER; | |
2637 | con->sent_header = 2; | |
2638 | } | |
2639 | else | |
2640 | con->sent_header = 1; | |
d6ae789d | 2641 | } |
1a18c85c | 2642 | else if (!_cups_strcasecmp(con->header, "Status") && value) |
07725fee | 2643 | { |
1a18c85c | 2644 | con->pipe_status = (http_status_t)atoi(value); |
07725fee | 2645 | con->sent_header = 2; |
2646 | } | |
1a18c85c | 2647 | else if (!_cups_strcasecmp(con->header, "Set-Cookie") && value) |
4744bd90 | 2648 | { |
1a18c85c | 2649 | httpSetCookie(con->http, value); |
07725fee | 2650 | con->sent_header = 1; |
1a18c85c | 2651 | } |
ef416fc2 | 2652 | } |
2653 | ||
ef416fc2 | 2654 | /* |
2655 | * Update buffer... | |
2656 | */ | |
2657 | ||
68b10830 | 2658 | con->header_used -= bufptr - con->header; |
d1c13e16 | 2659 | |
68b10830 | 2660 | if (con->header_used > 0) |
1a18c85c | 2661 | memmove(con->header, bufptr, (size_t)con->header_used); |
d1c13e16 | 2662 | |
68b10830 | 2663 | bufptr = con->header - 1; |
ef416fc2 | 2664 | |
2665 | /* | |
2666 | * See if the line was empty... | |
2667 | */ | |
2668 | ||
68b10830 | 2669 | if (field_col == 0) |
d09495fa | 2670 | { |
ef416fc2 | 2671 | con->got_fields = 1; |
d09495fa | 2672 | |
1a18c85c MS |
2673 | if (httpGetVersion(con->http) == HTTP_VERSION_1_1 && |
2674 | !httpGetField(con->http, HTTP_FIELD_CONTENT_LENGTH)[0]) | |
2675 | httpSetLength(con->http, 0); | |
2676 | ||
2677 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Sending status %d for CGI.", con->pipe_status); | |
2678 | ||
2679 | if (con->pipe_status == HTTP_STATUS_OK) | |
07725fee | 2680 | { |
1a18c85c MS |
2681 | if (!cupsdSendHeader(con, con->pipe_status, NULL, CUPSD_AUTH_NONE)) |
2682 | { | |
2683 | cupsdCloseClient(con); | |
2684 | return; | |
2685 | } | |
2686 | } | |
2687 | else | |
2688 | { | |
2689 | if (!cupsdSendError(con, con->pipe_status, CUPSD_AUTH_NONE)) | |
2690 | { | |
2691 | cupsdCloseClient(con); | |
2692 | return; | |
2693 | } | |
07725fee | 2694 | } |
d09495fa | 2695 | } |
ef416fc2 | 2696 | else |
68b10830 | 2697 | field_col = 0; |
ef416fc2 | 2698 | } |
2699 | else if (*bufptr != '\r') | |
68b10830 | 2700 | field_col ++; |
d1c13e16 | 2701 | } |
ef416fc2 | 2702 | |
68b10830 | 2703 | if (!con->got_fields) |
47879b8b | 2704 | return; |
ef416fc2 | 2705 | } |
2706 | ||
68b10830 | 2707 | if (con->header_used > 0) |
ef416fc2 | 2708 | { |
1a18c85c | 2709 | if (httpWrite2(con->http, con->header, (size_t)con->header_used) < 0) |
4744bd90 | 2710 | { |
1a18c85c MS |
2711 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing for error %d (%s)", |
2712 | httpError(con->http), strerror(httpError(con->http))); | |
4744bd90 | 2713 | cupsdCloseClient(con); |
f7deaa1a | 2714 | return; |
4744bd90 | 2715 | } |
ef416fc2 | 2716 | |
1a18c85c MS |
2717 | if (httpIsChunked(con->http)) |
2718 | httpFlushWrite(con->http); | |
ae71f5de | 2719 | |
68b10830 | 2720 | con->bytes += con->header_used; |
ef416fc2 | 2721 | |
1a18c85c | 2722 | if (httpGetState(con->http) == HTTP_STATE_WAITING) |
4744bd90 | 2723 | bytes = 0; |
68b10830 MS |
2724 | else |
2725 | bytes = con->header_used; | |
2726 | ||
2727 | con->header_used = 0; | |
4744bd90 | 2728 | } |
ef416fc2 | 2729 | } |
2730 | ||
8b116e60 | 2731 | if (bytes <= 0 || |
1a18c85c MS |
2732 | (httpGetState(con->http) != HTTP_STATE_GET_SEND && |
2733 | httpGetState(con->http) != HTTP_STATE_POST_SEND)) | |
ef416fc2 | 2734 | { |
38e73f87 | 2735 | if (!con->sent_header && con->pipe_pid) |
1a18c85c | 2736 | cupsdSendError(con, HTTP_STATUS_SERVER_ERROR, CUPSD_AUTH_NONE); |
94da7e34 MS |
2737 | else |
2738 | { | |
1a18c85c | 2739 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 2740 | |
1a18c85c | 2741 | if (httpIsChunked(con->http) && (!con->pipe_pid || con->sent_header > 0)) |
ef416fc2 | 2742 | { |
1a18c85c MS |
2743 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Sending 0-length chunk."); |
2744 | ||
2745 | if (httpWrite2(con->http, "", 0) < 0) | |
94da7e34 | 2746 | { |
1a18c85c MS |
2747 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing for error %d (%s)", |
2748 | httpError(con->http), strerror(httpError(con->http))); | |
94da7e34 MS |
2749 | cupsdCloseClient(con); |
2750 | return; | |
2751 | } | |
ef416fc2 | 2752 | } |
ef416fc2 | 2753 | |
1a18c85c MS |
2754 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Flushing write buffer."); |
2755 | httpFlushWrite(con->http); | |
2756 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "New state is %s", httpStateString(httpGetState(con->http))); | |
2757 | } | |
ef416fc2 | 2758 | |
1a18c85c | 2759 | cupsdAddSelect(httpGetFd(con->http), (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 2760 | |
1a18c85c | 2761 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for request."); |
1bc82dd9 | 2762 | |
ef416fc2 | 2763 | if (con->file >= 0) |
2764 | { | |
f7deaa1a | 2765 | cupsdRemoveSelect(con->file); |
ef416fc2 | 2766 | |
2767 | if (con->pipe_pid) | |
2768 | cupsdEndProcess(con->pipe_pid, 0); | |
2769 | ||
ef416fc2 | 2770 | close(con->file); |
2771 | con->file = -1; | |
2772 | con->pipe_pid = 0; | |
2773 | } | |
2774 | ||
2775 | if (con->filename) | |
2776 | { | |
ef416fc2 | 2777 | unlink(con->filename); |
2778 | cupsdClearString(&con->filename); | |
2779 | } | |
2780 | ||
2abf387c | 2781 | if (con->request) |
ef416fc2 | 2782 | { |
2783 | ippDelete(con->request); | |
2784 | con->request = NULL; | |
2785 | } | |
2786 | ||
2abf387c | 2787 | if (con->response) |
ef416fc2 | 2788 | { |
2789 | ippDelete(con->response); | |
2790 | con->response = NULL; | |
2791 | } | |
2792 | ||
2793 | cupsdClearString(&con->command); | |
2794 | cupsdClearString(&con->options); | |
b86bc4cf | 2795 | cupsdClearString(&con->query_string); |
ef416fc2 | 2796 | |
1a18c85c | 2797 | if (!httpGetKeepAlive(con->http)) |
ef416fc2 | 2798 | { |
1a18c85c MS |
2799 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2800 | "Closing because Keep-Alive is disabled."); | |
ef416fc2 | 2801 | cupsdCloseClient(con); |
f7deaa1a | 2802 | return; |
ef416fc2 | 2803 | } |
f11a948a MS |
2804 | else |
2805 | { | |
2806 | cupsArrayRemove(ActiveClients, con); | |
2807 | cupsdSetBusyState(); | |
2808 | } | |
ef416fc2 | 2809 | } |
f7deaa1a | 2810 | } |
ef416fc2 | 2811 | |
f7deaa1a | 2812 | |
e1d6a774 | 2813 | /* |
2814 | * 'check_if_modified()' - Decode an "If-Modified-Since" line. | |
2815 | */ | |
2816 | ||
2817 | static int /* O - 1 if modified since */ | |
2818 | check_if_modified( | |
2819 | cupsd_client_t *con, /* I - Client connection */ | |
2820 | struct stat *filestats) /* I - File information */ | |
2821 | { | |
1a18c85c | 2822 | const char *ptr; /* Pointer into field */ |
e1d6a774 | 2823 | time_t date; /* Time/date value */ |
2824 | off_t size; /* Size/length value */ | |
2825 | ||
2826 | ||
2827 | size = 0; | |
2828 | date = 0; | |
1a18c85c | 2829 | ptr = httpGetField(con->http, HTTP_FIELD_IF_MODIFIED_SINCE); |
e1d6a774 | 2830 | |
2831 | if (*ptr == '\0') | |
2832 | return (1); | |
2833 | ||
1a18c85c MS |
2834 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
2835 | "check_if_modified " | |
2836 | "filestats=%p(" CUPS_LLFMT ", %d)) If-Modified-Since=\"%s\"", | |
2837 | filestats, CUPS_LLCAST filestats->st_size, | |
2838 | (int)filestats->st_mtime, ptr); | |
e1d6a774 | 2839 | |
2840 | while (*ptr != '\0') | |
2841 | { | |
2842 | while (isspace(*ptr) || *ptr == ';') | |
2843 | ptr ++; | |
2844 | ||
88f9aafc | 2845 | if (_cups_strncasecmp(ptr, "length=", 7) == 0) |
e1d6a774 | 2846 | { |
2847 | ptr += 7; | |
2848 | size = strtoll(ptr, NULL, 10); | |
2849 | ||
2850 | while (isdigit(*ptr)) | |
2851 | ptr ++; | |
2852 | } | |
2853 | else if (isalpha(*ptr)) | |
2854 | { | |
2855 | date = httpGetDateTime(ptr); | |
2856 | while (*ptr != '\0' && *ptr != ';') | |
2857 | ptr ++; | |
2858 | } | |
e53920b9 | 2859 | else |
2860 | ptr ++; | |
e1d6a774 | 2861 | } |
2862 | ||
e1d6a774 | 2863 | return ((size != filestats->st_size && size != 0) || |
2864 | (date < filestats->st_mtime && date != 0) || | |
2865 | (size == 0 && date == 0)); | |
2866 | } | |
2867 | ||
2868 | ||
3dfe78b3 MS |
2869 | /* |
2870 | * 'compare_clients()' - Compare two client connections. | |
2871 | */ | |
2872 | ||
2873 | static int /* O - Result of comparison */ | |
2874 | compare_clients(cupsd_client_t *a, /* I - First client */ | |
2875 | cupsd_client_t *b, /* I - Second client */ | |
2876 | void *data) /* I - User data (not used) */ | |
2877 | { | |
2878 | (void)data; | |
2879 | ||
2880 | if (a == b) | |
2881 | return (0); | |
2882 | else if (a < b) | |
2883 | return (-1); | |
2884 | else | |
2885 | return (1); | |
2886 | } | |
2887 | ||
2888 | ||
1a18c85c | 2889 | #ifdef HAVE_SSL |
85dda01c | 2890 | /* |
1a18c85c | 2891 | * 'cupsd_start_tls()' - Start encryption on a connection. |
85dda01c | 2892 | */ |
ef416fc2 | 2893 | |
1a18c85c MS |
2894 | static int /* O - 0 on success, -1 on error */ |
2895 | cupsd_start_tls(cupsd_client_t *con, /* I - Client connection */ | |
2896 | http_encryption_t e) /* I - Encryption mode */ | |
85dda01c | 2897 | { |
1a18c85c | 2898 | if (httpEncryption(con->http, e)) |
e1d6a774 | 2899 | { |
1a18c85c MS |
2900 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to encrypt connection: %s", |
2901 | cupsLastErrorString()); | |
2902 | return (-1); | |
e1d6a774 | 2903 | } |
ef416fc2 | 2904 | |
1a18c85c | 2905 | cupsdLogClient(con, CUPSD_LOG_INFO, "Connection now encrypted."); |
85dda01c MS |
2906 | return (0); |
2907 | } | |
1a18c85c | 2908 | #endif /* HAVE_SSL */ |
ef416fc2 | 2909 | |
ef416fc2 | 2910 | |
ef416fc2 | 2911 | /* |
2912 | * 'get_file()' - Get a filename and state info. | |
2913 | */ | |
2914 | ||
2915 | static char * /* O - Real filename */ | |
2916 | get_file(cupsd_client_t *con, /* I - Client connection */ | |
2917 | struct stat *filestats, /* O - File information */ | |
2918 | char *filename, /* IO - Filename buffer */ | |
1a18c85c | 2919 | size_t len) /* I - Buffer length */ |
ef416fc2 | 2920 | { |
2921 | int status; /* Status of filesystem calls */ | |
2922 | char *ptr; /* Pointer info filename */ | |
1a18c85c | 2923 | size_t plen; /* Remaining length after pointer */ |
db1f069b | 2924 | char language[7]; /* Language subdirectory, if any */ |
5d2cc5d3 | 2925 | int perm_check = 1; /* Do permissions check? */ |
ef416fc2 | 2926 | |
2927 | ||
2928 | /* | |
f7deaa1a | 2929 | * Figure out the real filename... |
ef416fc2 | 2930 | */ |
2931 | ||
db1f069b MS |
2932 | language[0] = '\0'; |
2933 | ||
7cf5915e | 2934 | if (!strncmp(con->uri, "/ppd/", 5) && !strchr(con->uri + 5, '/')) |
5d2cc5d3 | 2935 | { |
ef416fc2 | 2936 | snprintf(filename, len, "%s%s", ServerRoot, con->uri); |
5d2cc5d3 MS |
2937 | |
2938 | perm_check = 0; | |
2939 | } | |
7cf5915e MS |
2940 | else if (!strncmp(con->uri, "/icons/", 7) && !strchr(con->uri + 7, '/')) |
2941 | { | |
2942 | snprintf(filename, len, "%s/%s", CacheDir, con->uri + 7); | |
2943 | if (access(filename, F_OK) < 0) | |
2944 | snprintf(filename, len, "%s/images/generic.png", DocumentRoot); | |
5d2cc5d3 MS |
2945 | |
2946 | perm_check = 0; | |
7cf5915e | 2947 | } |
f7deaa1a | 2948 | else if (!strncmp(con->uri, "/rss/", 5) && !strchr(con->uri + 5, '/')) |
2949 | snprintf(filename, len, "%s/rss/%s", CacheDir, con->uri + 5); | |
5d2cc5d3 MS |
2950 | else if (!strcmp(con->uri, "/admin/conf/cupsd.conf")) |
2951 | { | |
2952 | strlcpy(filename, ConfigurationFile, len); | |
2953 | ||
2954 | perm_check = 0; | |
2955 | } | |
ef416fc2 | 2956 | else if (!strncmp(con->uri, "/admin/log/", 11)) |
2957 | { | |
2e4ff8af | 2958 | if (!strncmp(con->uri + 11, "access_log", 10) && AccessLog[0] == '/') |
ef416fc2 | 2959 | strlcpy(filename, AccessLog, len); |
2e4ff8af | 2960 | else if (!strncmp(con->uri + 11, "error_log", 9) && ErrorLog[0] == '/') |
ef416fc2 | 2961 | strlcpy(filename, ErrorLog, len); |
2e4ff8af | 2962 | else if (!strncmp(con->uri + 11, "page_log", 8) && PageLog[0] == '/') |
ef416fc2 | 2963 | strlcpy(filename, PageLog, len); |
2964 | else | |
2965 | return (NULL); | |
5d2cc5d3 MS |
2966 | |
2967 | perm_check = 0; | |
ef416fc2 | 2968 | } |
d6ae789d | 2969 | else if (con->language) |
db1f069b MS |
2970 | { |
2971 | snprintf(language, sizeof(language), "/%s", con->language->language); | |
2972 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
2973 | } | |
ef416fc2 | 2974 | else |
2975 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); | |
2976 | ||
2977 | if ((ptr = strchr(filename, '?')) != NULL) | |
2978 | *ptr = '\0'; | |
2979 | ||
2980 | /* | |
2981 | * Grab the status for this language; if there isn't a language-specific file | |
2982 | * then fallback to the default one... | |
2983 | */ | |
2984 | ||
b60086f8 | 2985 | if ((status = lstat(filename, filestats)) != 0 && language[0] && |
7cf5915e | 2986 | strncmp(con->uri, "/icons/", 7) && |
d6ae789d | 2987 | strncmp(con->uri, "/ppd/", 5) && |
7cf5915e | 2988 | strncmp(con->uri, "/rss/", 5) && |
d6ae789d | 2989 | strncmp(con->uri, "/admin/conf/", 12) && |
2990 | strncmp(con->uri, "/admin/log/", 11)) | |
ef416fc2 | 2991 | { |
2992 | /* | |
d6ae789d | 2993 | * Drop the country code... |
ef416fc2 | 2994 | */ |
2995 | ||
db1f069b MS |
2996 | language[3] = '\0'; |
2997 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
d6ae789d | 2998 | |
2999 | if ((ptr = strchr(filename, '?')) != NULL) | |
3000 | *ptr = '\0'; | |
3001 | ||
215ef638 | 3002 | if ((status = lstat(filename, filestats)) != 0) |
ef416fc2 | 3003 | { |
d6ae789d | 3004 | /* |
3005 | * Drop the language prefix and try the root directory... | |
3006 | */ | |
3007 | ||
db1f069b | 3008 | language[0] = '\0'; |
ef416fc2 | 3009 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); |
3010 | ||
3011 | if ((ptr = strchr(filename, '?')) != NULL) | |
3012 | *ptr = '\0'; | |
3013 | ||
215ef638 | 3014 | status = lstat(filename, filestats); |
ef416fc2 | 3015 | } |
3016 | } | |
3017 | ||
3018 | /* | |
215ef638 MS |
3019 | * If we've found a symlink, 404 the sucker to avoid disclosing information. |
3020 | */ | |
3021 | ||
3022 | if (!status && S_ISLNK(filestats->st_mode)) | |
3023 | { | |
1a18c85c | 3024 | cupsdLogClient(con, CUPSD_LOG_INFO, "Symlinks such as \"%s\" are not allowed.", filename); |
215ef638 MS |
3025 | return (NULL); |
3026 | } | |
3027 | ||
3028 | /* | |
3029 | * Similarly, if the file/directory does not have world read permissions, do | |
3030 | * not allow access... | |
3031 | */ | |
3032 | ||
5d2cc5d3 | 3033 | if (!status && perm_check && !(filestats->st_mode & S_IROTH)) |
215ef638 | 3034 | { |
1a18c85c | 3035 | cupsdLogClient(con, CUPSD_LOG_INFO, "Files/directories such as \"%s\" must be world-readable.", filename); |
215ef638 MS |
3036 | return (NULL); |
3037 | } | |
3038 | ||
3039 | /* | |
3040 | * If we've found a directory, get the index.html file instead... | |
ef416fc2 | 3041 | */ |
3042 | ||
3043 | if (!status && S_ISDIR(filestats->st_mode)) | |
3044 | { | |
db1f069b MS |
3045 | /* |
3046 | * Make sure the URI ends with a slash... | |
3047 | */ | |
ef416fc2 | 3048 | |
db1f069b MS |
3049 | if (con->uri[strlen(con->uri) - 1] != '/') |
3050 | strlcat(con->uri, "/", sizeof(con->uri)); | |
ef416fc2 | 3051 | |
db1f069b MS |
3052 | /* |
3053 | * Find the directory index file, trying every language... | |
3054 | */ | |
ef416fc2 | 3055 | |
db1f069b | 3056 | do |
ef416fc2 | 3057 | { |
db1f069b MS |
3058 | if (status && language[0]) |
3059 | { | |
3060 | /* | |
3061 | * Try a different language subset... | |
3062 | */ | |
3063 | ||
3064 | if (language[3]) | |
3065 | language[0] = '\0'; /* Strip country code */ | |
3066 | else | |
3067 | language[0] = '\0'; /* Strip language */ | |
3068 | } | |
3069 | ||
3070 | /* | |
3071 | * Look for the index file... | |
3072 | */ | |
3073 | ||
3074 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
3075 | ||
3076 | if ((ptr = strchr(filename, '?')) != NULL) | |
3077 | *ptr = '\0'; | |
3078 | ||
3079 | ptr = filename + strlen(filename); | |
1a18c85c | 3080 | plen = len - (size_t)(ptr - filename); |
db1f069b MS |
3081 | |
3082 | strlcpy(ptr, "index.html", plen); | |
b60086f8 | 3083 | status = lstat(filename, filestats); |
db1f069b MS |
3084 | |
3085 | #ifdef HAVE_JAVA | |
3086 | if (status) | |
3087 | { | |
3088 | strlcpy(ptr, "index.class", plen); | |
b60086f8 | 3089 | status = lstat(filename, filestats); |
db1f069b | 3090 | } |
ef416fc2 | 3091 | #endif /* HAVE_JAVA */ |
3092 | ||
3093 | #ifdef HAVE_PERL | |
db1f069b MS |
3094 | if (status) |
3095 | { | |
3096 | strlcpy(ptr, "index.pl", plen); | |
b60086f8 | 3097 | status = lstat(filename, filestats); |
db1f069b | 3098 | } |
ef416fc2 | 3099 | #endif /* HAVE_PERL */ |
3100 | ||
3101 | #ifdef HAVE_PHP | |
db1f069b MS |
3102 | if (status) |
3103 | { | |
3104 | strlcpy(ptr, "index.php", plen); | |
b60086f8 | 3105 | status = lstat(filename, filestats); |
db1f069b | 3106 | } |
ef416fc2 | 3107 | #endif /* HAVE_PHP */ |
3108 | ||
3109 | #ifdef HAVE_PYTHON | |
db1f069b MS |
3110 | if (status) |
3111 | { | |
3112 | strlcpy(ptr, "index.pyc", plen); | |
b60086f8 | 3113 | status = lstat(filename, filestats); |
db1f069b | 3114 | } |
ef416fc2 | 3115 | |
db1f069b MS |
3116 | if (status) |
3117 | { | |
3118 | strlcpy(ptr, "index.py", plen); | |
b60086f8 | 3119 | status = lstat(filename, filestats); |
db1f069b | 3120 | } |
ef416fc2 | 3121 | #endif /* HAVE_PYTHON */ |
db1f069b MS |
3122 | |
3123 | } | |
3124 | while (status && language[0]); | |
b60086f8 MS |
3125 | |
3126 | /* | |
3127 | * If we've found a symlink, 404 the sucker to avoid disclosing information. | |
3128 | */ | |
3129 | ||
3130 | if (!status && S_ISLNK(filestats->st_mode)) | |
3131 | { | |
1a18c85c | 3132 | cupsdLogClient(con, CUPSD_LOG_INFO, "Symlinks such as \"%s\" are not allowed.", filename); |
b60086f8 MS |
3133 | return (NULL); |
3134 | } | |
3135 | ||
3136 | /* | |
3137 | * Similarly, if the file/directory does not have world read permissions, do | |
3138 | * not allow access... | |
3139 | */ | |
3140 | ||
5d2cc5d3 | 3141 | if (!status && perm_check && !(filestats->st_mode & S_IROTH)) |
b60086f8 | 3142 | { |
1a18c85c | 3143 | cupsdLogClient(con, CUPSD_LOG_INFO, "Files/directories such as \"%s\" must be world-readable.", filename); |
b60086f8 MS |
3144 | return (NULL); |
3145 | } | |
ef416fc2 | 3146 | } |
3147 | ||
1a18c85c | 3148 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "get_file filestats=%p, filename=%p, len=" CUPS_LLFMT ", returning \"%s\".", filestats, filename, CUPS_LLCAST len, status ? "(null)" : filename); |
ef416fc2 | 3149 | |
ef416fc2 | 3150 | if (status) |
3151 | return (NULL); | |
3152 | else | |
3153 | return (filename); | |
3154 | } | |
3155 | ||
3156 | ||
3157 | /* | |
c41769ff | 3158 | * 'install_cupsd_conf()' - Install a configuration file. |
ef416fc2 | 3159 | */ |
3160 | ||
3161 | static http_status_t /* O - Status */ | |
c41769ff | 3162 | install_cupsd_conf(cupsd_client_t *con) /* I - Connection */ |
ef416fc2 | 3163 | { |
321d8d57 | 3164 | char filename[1024]; /* Configuration filename */ |
ef416fc2 | 3165 | cups_file_t *in, /* Input file */ |
3166 | *out; /* Output file */ | |
321d8d57 MS |
3167 | char buffer[16384]; /* Copy buffer */ |
3168 | ssize_t bytes; /* Number of bytes */ | |
ef416fc2 | 3169 | |
3170 | ||
3171 | /* | |
321d8d57 | 3172 | * Open the request file... |
ef416fc2 | 3173 | */ |
3174 | ||
321d8d57 | 3175 | if ((in = cupsFileOpen(con->filename, "rb")) == NULL) |
ef416fc2 | 3176 | { |
1a18c85c | 3177 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to open request file \"%s\": %s", |
321d8d57 | 3178 | con->filename, strerror(errno)); |
1a18c85c | 3179 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3180 | } |
3181 | ||
3182 | /* | |
321d8d57 | 3183 | * Open the new config file... |
ef416fc2 | 3184 | */ |
3185 | ||
cb7f98ee | 3186 | if ((out = cupsdCreateConfFile(ConfigurationFile, ConfigFilePerm)) == NULL) |
ef416fc2 | 3187 | { |
3188 | cupsFileClose(in); | |
1a18c85c | 3189 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3190 | } |
3191 | ||
1a18c85c | 3192 | cupsdLogClient(con, CUPSD_LOG_INFO, "Installing config file \"%s\"...", |
cb7f98ee | 3193 | ConfigurationFile); |
ef416fc2 | 3194 | |
3195 | /* | |
3196 | * Copy from the request to the new config file... | |
3197 | */ | |
3198 | ||
3199 | while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0) | |
1a18c85c | 3200 | if (cupsFileWrite(out, buffer, (size_t)bytes) < bytes) |
ef416fc2 | 3201 | { |
1a18c85c | 3202 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
321d8d57 | 3203 | "Unable to copy to config file \"%s\": %s", |
cb7f98ee | 3204 | ConfigurationFile, strerror(errno)); |
ef416fc2 | 3205 | |
3206 | cupsFileClose(in); | |
3207 | cupsFileClose(out); | |
321d8d57 | 3208 | |
cb7f98ee MS |
3209 | snprintf(filename, sizeof(filename), "%s.N", ConfigurationFile); |
3210 | cupsdUnlinkOrRemoveFile(filename); | |
ef416fc2 | 3211 | |
1a18c85c | 3212 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3213 | } |
3214 | ||
3215 | /* | |
3216 | * Close the files... | |
3217 | */ | |
3218 | ||
3219 | cupsFileClose(in); | |
ef416fc2 | 3220 | |
cb7f98ee | 3221 | if (cupsdCloseCreatedConfFile(out, ConfigurationFile)) |
1a18c85c | 3222 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3223 | |
3224 | /* | |
3225 | * Remove the request file... | |
3226 | */ | |
3227 | ||
cb7f98ee | 3228 | cupsdUnlinkOrRemoveFile(con->filename); |
ef416fc2 | 3229 | cupsdClearString(&con->filename); |
3230 | ||
ef416fc2 | 3231 | /* |
c41769ff | 3232 | * Set the NeedReload flag... |
ef416fc2 | 3233 | */ |
3234 | ||
c41769ff | 3235 | NeedReload = RELOAD_CUPSD; |
ef416fc2 | 3236 | ReloadTime = time(NULL); |
3237 | ||
3238 | /* | |
3239 | * Return that the file was created successfully... | |
3240 | */ | |
3241 | ||
1a18c85c | 3242 | return (HTTP_STATUS_CREATED); |
ef416fc2 | 3243 | } |
3244 | ||
3245 | ||
e1d6a774 | 3246 | /* |
3247 | * 'is_cgi()' - Is the resource a CGI script/program? | |
3248 | */ | |
3249 | ||
3250 | static int /* O - 1 = CGI, 0 = file */ | |
3251 | is_cgi(cupsd_client_t *con, /* I - Client connection */ | |
3252 | const char *filename, /* I - Real filename */ | |
3253 | struct stat *filestats, /* I - File information */ | |
3254 | mime_type_t *type) /* I - MIME type */ | |
3255 | { | |
3256 | const char *options; /* Options on URL */ | |
3257 | ||
3258 | ||
e1d6a774 | 3259 | /* |
3260 | * Get the options, if any... | |
3261 | */ | |
3262 | ||
3263 | if ((options = strchr(con->uri, '?')) != NULL) | |
a0f6818e MS |
3264 | { |
3265 | options ++; | |
3266 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", options); | |
3267 | } | |
b86bc4cf | 3268 | |
e1d6a774 | 3269 | /* |
3270 | * Check for known types... | |
3271 | */ | |
3272 | ||
88f9aafc | 3273 | if (!type || _cups_strcasecmp(type->super, "application")) |
e1d6a774 | 3274 | { |
1a18c85c MS |
3275 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3276 | "is_cgi filename=\"%s\", filestats=%p, " | |
3277 | "type=%s/%s, returning 0", filename, | |
3278 | filestats, type ? type->super : "unknown", | |
3279 | type ? type->type : "unknown"); | |
e1d6a774 | 3280 | return (0); |
3281 | } | |
3282 | ||
88f9aafc | 3283 | if (!_cups_strcasecmp(type->type, "x-httpd-cgi") && |
e1d6a774 | 3284 | (filestats->st_mode & 0111)) |
3285 | { | |
3286 | /* | |
3287 | * "application/x-httpd-cgi" is a CGI script. | |
3288 | */ | |
3289 | ||
3290 | cupsdSetString(&con->command, filename); | |
3291 | ||
a0f6818e MS |
3292 | if (options) |
3293 | cupsdSetStringf(&con->options, " %s", options); | |
e1d6a774 | 3294 | |
1a18c85c MS |
3295 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3296 | "is_cgi filename=\"%s\", filestats=%p, " | |
3297 | "type=%s/%s, returning 1", filename, | |
3298 | filestats, type->super, type->type); | |
e1d6a774 | 3299 | return (1); |
3300 | } | |
3301 | #ifdef HAVE_JAVA | |
88f9aafc | 3302 | else if (!_cups_strcasecmp(type->type, "x-httpd-java")) |
e1d6a774 | 3303 | { |
3304 | /* | |
3305 | * "application/x-httpd-java" is a Java servlet. | |
3306 | */ | |
3307 | ||
3308 | cupsdSetString(&con->command, CUPS_JAVA); | |
3309 | ||
3310 | if (options) | |
b94498cf | 3311 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3312 | else |
b94498cf | 3313 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3314 | |
1a18c85c MS |
3315 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3316 | "is_cgi filename=\"%s\", filestats=%p, " | |
3317 | "type=%s/%s, returning 1", filename, | |
3318 | filestats, type->super, type->type); | |
e1d6a774 | 3319 | return (1); |
3320 | } | |
3321 | #endif /* HAVE_JAVA */ | |
3322 | #ifdef HAVE_PERL | |
88f9aafc | 3323 | else if (!_cups_strcasecmp(type->type, "x-httpd-perl")) |
e1d6a774 | 3324 | { |
3325 | /* | |
3326 | * "application/x-httpd-perl" is a Perl page. | |
3327 | */ | |
3328 | ||
3329 | cupsdSetString(&con->command, CUPS_PERL); | |
3330 | ||
3331 | if (options) | |
b94498cf | 3332 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3333 | else |
b94498cf | 3334 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3335 | |
1a18c85c MS |
3336 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3337 | "is_cgi filename=\"%s\", filestats=%p, " | |
3338 | "type=%s/%s, returning 1", filename, | |
3339 | filestats, type->super, type->type); | |
e1d6a774 | 3340 | return (1); |
3341 | } | |
3342 | #endif /* HAVE_PERL */ | |
3343 | #ifdef HAVE_PHP | |
88f9aafc | 3344 | else if (!_cups_strcasecmp(type->type, "x-httpd-php")) |
e1d6a774 | 3345 | { |
3346 | /* | |
3347 | * "application/x-httpd-php" is a PHP page. | |
3348 | */ | |
3349 | ||
3350 | cupsdSetString(&con->command, CUPS_PHP); | |
3351 | ||
3352 | if (options) | |
b94498cf | 3353 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3354 | else |
b94498cf | 3355 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3356 | |
1a18c85c MS |
3357 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3358 | "is_cgi filename=\"%s\", filestats=%p, " | |
3359 | "type=%s/%s, returning 1", filename, | |
3360 | filestats, type->super, type->type); | |
e1d6a774 | 3361 | return (1); |
3362 | } | |
3363 | #endif /* HAVE_PHP */ | |
3364 | #ifdef HAVE_PYTHON | |
88f9aafc | 3365 | else if (!_cups_strcasecmp(type->type, "x-httpd-python")) |
e1d6a774 | 3366 | { |
3367 | /* | |
3368 | * "application/x-httpd-python" is a Python page. | |
3369 | */ | |
3370 | ||
3371 | cupsdSetString(&con->command, CUPS_PYTHON); | |
3372 | ||
3373 | if (options) | |
b94498cf | 3374 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3375 | else |
b94498cf | 3376 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3377 | |
1a18c85c MS |
3378 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3379 | "is_cgi filename=\"%s\", filestats=%p, " | |
3380 | "type=%s/%s, returning 1", filename, | |
3381 | filestats, type->super, type->type); | |
e1d6a774 | 3382 | return (1); |
3383 | } | |
3384 | #endif /* HAVE_PYTHON */ | |
3385 | ||
1a18c85c MS |
3386 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3387 | "is_cgi filename=\"%s\", filestats=%p, " | |
3388 | "type=%s/%s, returning 0", filename, | |
3389 | filestats, type->super, type->type); | |
e1d6a774 | 3390 | return (0); |
3391 | } | |
3392 | ||
3393 | ||
ef416fc2 | 3394 | /* |
3395 | * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. ".."). | |
3396 | */ | |
3397 | ||
3398 | static int /* O - 0 if relative, 1 if absolute */ | |
3399 | is_path_absolute(const char *path) /* I - Input path */ | |
3400 | { | |
3401 | /* | |
3402 | * Check for a leading slash... | |
3403 | */ | |
3404 | ||
3405 | if (path[0] != '/') | |
3406 | return (0); | |
3407 | ||
71f63681 MS |
3408 | /* |
3409 | * Check for "<" or quotes in the path and reject since this is probably | |
3410 | * someone trying to inject HTML... | |
3411 | */ | |
3412 | ||
3413 | if (strchr(path, '<') != NULL || strchr(path, '\"') != NULL || strchr(path, '\'') != NULL) | |
3414 | return (0); | |
3415 | ||
ef416fc2 | 3416 | /* |
3417 | * Check for "/.." in the path... | |
3418 | */ | |
3419 | ||
3420 | while ((path = strstr(path, "/..")) != NULL) | |
3421 | { | |
3422 | if (!path[3] || path[3] == '/') | |
3423 | return (0); | |
3424 | ||
3425 | path ++; | |
3426 | } | |
3427 | ||
3428 | /* | |
3429 | * If we haven't found any relative paths, return 1 indicating an | |
3430 | * absolute path... | |
3431 | */ | |
3432 | ||
3433 | return (1); | |
3434 | } | |
3435 | ||
3436 | ||
3437 | /* | |
3438 | * 'pipe_command()' - Pipe the output of a command to the remote client. | |
3439 | */ | |
3440 | ||
3441 | static int /* O - Process ID */ | |
3442 | pipe_command(cupsd_client_t *con, /* I - Client connection */ | |
3443 | int infile, /* I - Standard input for command */ | |
3444 | int *outfile, /* O - Standard output for command */ | |
3445 | char *command, /* I - Command to run */ | |
3446 | char *options, /* I - Options for command */ | |
3447 | int root) /* I - Run as root? */ | |
3448 | { | |
3449 | int i; /* Looping var */ | |
3450 | int pid; /* Process ID */ | |
b423cd4c | 3451 | char *commptr, /* Command string pointer */ |
3452 | commch; /* Command string character */ | |
ef416fc2 | 3453 | char *uriptr; /* URI string pointer */ |
3454 | int fds[2]; /* Pipe FDs */ | |
3455 | int argc; /* Number of arguments */ | |
3456 | int envc; /* Number of environment variables */ | |
3457 | char argbuf[10240], /* Argument buffer */ | |
3458 | *argv[100], /* Argument strings */ | |
b94498cf | 3459 | *envp[MAX_ENV + 20]; /* Environment variables */ |
c7017ecc | 3460 | char auth_type[256], /* AUTH_TYPE environment variable */ |
b94498cf | 3461 | content_length[1024], /* CONTENT_LENGTH environment variable */ |
ef416fc2 | 3462 | content_type[1024], /* CONTENT_TYPE environment variable */ |
3463 | http_cookie[32768], /* HTTP_COOKIE environment variable */ | |
f7deaa1a | 3464 | http_referer[1024], /* HTTP_REFERER environment variable */ |
ef416fc2 | 3465 | http_user_agent[1024], /* HTTP_USER_AGENT environment variable */ |
3466 | lang[1024], /* LANG environment variable */ | |
b423cd4c | 3467 | path_info[1024], /* PATH_INFO environment variable */ |
ef416fc2 | 3468 | remote_addr[1024], /* REMOTE_ADDR environment variable */ |
3469 | remote_host[1024], /* REMOTE_HOST environment variable */ | |
3470 | remote_user[1024], /* REMOTE_USER environment variable */ | |
b94498cf | 3471 | script_filename[1024], /* SCRIPT_FILENAME environment variable */ |
ef416fc2 | 3472 | script_name[1024], /* SCRIPT_NAME environment variable */ |
3473 | server_name[1024], /* SERVER_NAME environment variable */ | |
3474 | server_port[1024]; /* SERVER_PORT environment variable */ | |
7dfedb92 | 3475 | ipp_attribute_t *attr; /* attributes-natural-language attribute */ |
ef416fc2 | 3476 | |
3477 | ||
3478 | /* | |
3479 | * Parse a copy of the options string, which is of the form: | |
3480 | * | |
b423cd4c | 3481 | * argument+argument+argument |
3482 | * ?argument+argument+argument | |
3483 | * param=value¶m=value | |
3484 | * ?param=value¶m=value | |
3485 | * /name?argument+argument+argument | |
3486 | * /name?param=value¶m=value | |
ef416fc2 | 3487 | * |
3488 | * If the string contains an "=" character after the initial name, | |
3489 | * then we treat it as a HTTP GET form request and make a copy of | |
3490 | * the remaining string for the environment variable. | |
3491 | * | |
3492 | * The string is always parsed out as command-line arguments, to | |
3493 | * be consistent with Apache... | |
3494 | */ | |
3495 | ||
1a18c85c MS |
3496 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3497 | "pipe_command infile=%d, outfile=%p, " | |
3498 | "command=\"%s\", options=\"%s\", root=%d", | |
3499 | infile, outfile, command, | |
3500 | options ? options : "(null)", root); | |
ef416fc2 | 3501 | |
b86bc4cf | 3502 | argv[0] = command; |
ef416fc2 | 3503 | |
b423cd4c | 3504 | if (options) |
b60086f8 | 3505 | strlcpy(argbuf, options, sizeof(argbuf)); |
b423cd4c | 3506 | else |
3507 | argbuf[0] = '\0'; | |
3508 | ||
3509 | if (argbuf[0] == '/') | |
ef416fc2 | 3510 | { |
3511 | /* | |
b423cd4c | 3512 | * Found some trailing path information, set PATH_INFO... |
ef416fc2 | 3513 | */ |
3514 | ||
b423cd4c | 3515 | if ((commptr = strchr(argbuf, '?')) == NULL) |
3516 | commptr = argbuf + strlen(argbuf); | |
ef416fc2 | 3517 | |
b423cd4c | 3518 | commch = *commptr; |
3519 | *commptr = '\0'; | |
3520 | snprintf(path_info, sizeof(path_info), "PATH_INFO=%s", argbuf); | |
3521 | *commptr = commch; | |
3522 | } | |
3523 | else | |
3524 | { | |
3525 | commptr = argbuf; | |
3526 | path_info[0] = '\0'; | |
b94498cf | 3527 | |
3528 | if (*commptr == ' ') | |
3529 | commptr ++; | |
b423cd4c | 3530 | } |
ef416fc2 | 3531 | |
cb7f98ee | 3532 | if (*commptr == '?' && con->operation == HTTP_STATE_GET && !con->query_string) |
b423cd4c | 3533 | { |
3534 | commptr ++; | |
b86bc4cf | 3535 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", commptr); |
b423cd4c | 3536 | } |
ef416fc2 | 3537 | |
b423cd4c | 3538 | argc = 1; |
ef416fc2 | 3539 | |
b423cd4c | 3540 | if (*commptr) |
3541 | { | |
3542 | argv[argc ++] = commptr; | |
ef416fc2 | 3543 | |
b423cd4c | 3544 | for (; *commptr && argc < 99; commptr ++) |
3545 | { | |
ef416fc2 | 3546 | /* |
b423cd4c | 3547 | * Break arguments whenever we see a + or space... |
ef416fc2 | 3548 | */ |
3549 | ||
b423cd4c | 3550 | if (*commptr == ' ' || *commptr == '+') |
3551 | { | |
3552 | while (*commptr == ' ' || *commptr == '+') | |
3553 | *commptr++ = '\0'; | |
ef416fc2 | 3554 | |
b423cd4c | 3555 | /* |
3556 | * If we don't have a blank string, save it as another argument... | |
3557 | */ | |
ef416fc2 | 3558 | |
b423cd4c | 3559 | if (*commptr) |
3560 | { | |
3561 | argv[argc] = commptr; | |
3562 | argc ++; | |
3563 | } | |
3564 | else | |
3565 | break; | |
3566 | } | |
3567 | else if (*commptr == '%' && isxdigit(commptr[1] & 255) && | |
3568 | isxdigit(commptr[2] & 255)) | |
3569 | { | |
3570 | /* | |
3571 | * Convert the %xx notation to the individual character. | |
3572 | */ | |
ef416fc2 | 3573 | |
b423cd4c | 3574 | if (commptr[1] >= '0' && commptr[1] <= '9') |
1a18c85c | 3575 | *commptr = (char)((commptr[1] - '0') << 4); |
b423cd4c | 3576 | else |
1a18c85c | 3577 | *commptr = (char)((tolower(commptr[1]) - 'a' + 10) << 4); |
ef416fc2 | 3578 | |
b423cd4c | 3579 | if (commptr[2] >= '0' && commptr[2] <= '9') |
3580 | *commptr |= commptr[2] - '0'; | |
3581 | else | |
3582 | *commptr |= tolower(commptr[2]) - 'a' + 10; | |
ef416fc2 | 3583 | |
b423cd4c | 3584 | _cups_strcpy(commptr + 1, commptr + 3); |
ef416fc2 | 3585 | |
b423cd4c | 3586 | /* |
3587 | * Check for a %00 and break if that is the case... | |
3588 | */ | |
ef416fc2 | 3589 | |
b423cd4c | 3590 | if (!*commptr) |
3591 | break; | |
3592 | } | |
ef416fc2 | 3593 | } |
3594 | } | |
3595 | ||
3596 | argv[argc] = NULL; | |
3597 | ||
ef416fc2 | 3598 | /* |
3599 | * Setup the environment variables as needed... | |
3600 | */ | |
3601 | ||
b94498cf | 3602 | if (con->username[0]) |
3603 | { | |
c7017ecc | 3604 | snprintf(auth_type, sizeof(auth_type), "AUTH_TYPE=%s", |
1a18c85c | 3605 | httpGetField(con->http, HTTP_FIELD_AUTHORIZATION)); |
b94498cf | 3606 | |
3607 | if ((uriptr = strchr(auth_type + 10, ' ')) != NULL) | |
3608 | *uriptr = '\0'; | |
3609 | } | |
3610 | else | |
3611 | auth_type[0] = '\0'; | |
3612 | ||
7dfedb92 MS |
3613 | if (con->request && |
3614 | (attr = ippFindAttribute(con->request, "attributes-natural-language", | |
3615 | IPP_TAG_LANGUAGE)) != NULL) | |
3616 | { | |
3617 | switch (strlen(attr->values[0].string.text)) | |
3618 | { | |
3619 | default : | |
3620 | /* | |
3621 | * This is an unknown or badly formatted language code; use | |
3622 | * the POSIX locale... | |
3623 | */ | |
3624 | ||
5a9febac | 3625 | strlcpy(lang, "LANG=C", sizeof(lang)); |
7dfedb92 MS |
3626 | break; |
3627 | ||
3628 | case 2 : | |
3629 | /* | |
3630 | * Just the language code (ll)... | |
3631 | */ | |
3632 | ||
3633 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", | |
3634 | attr->values[0].string.text); | |
3635 | break; | |
3636 | ||
3637 | case 5 : | |
3638 | /* | |
3639 | * Language and country code (ll-cc)... | |
3640 | */ | |
3641 | ||
3642 | snprintf(lang, sizeof(lang), "LANG=%c%c_%c%c.UTF8", | |
3643 | attr->values[0].string.text[0], | |
3644 | attr->values[0].string.text[1], | |
3645 | toupper(attr->values[0].string.text[3] & 255), | |
3646 | toupper(attr->values[0].string.text[4] & 255)); | |
3647 | break; | |
3648 | } | |
3649 | } | |
3650 | else if (con->language) | |
3651 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", con->language->language); | |
ef416fc2 | 3652 | else |
5a9febac | 3653 | strlcpy(lang, "LANG=C", sizeof(lang)); |
ef416fc2 | 3654 | |
5a9febac | 3655 | strlcpy(remote_addr, "REMOTE_ADDR=", sizeof(remote_addr)); |
1a18c85c | 3656 | httpAddrString(httpGetAddress(con->http), remote_addr + 12, |
ef416fc2 | 3657 | sizeof(remote_addr) - 12); |
3658 | ||
3659 | snprintf(remote_host, sizeof(remote_host), "REMOTE_HOST=%s", | |
1a18c85c | 3660 | httpGetHostname(con->http, NULL, 0)); |
ef416fc2 | 3661 | |
3662 | snprintf(script_name, sizeof(script_name), "SCRIPT_NAME=%s", con->uri); | |
3663 | if ((uriptr = strchr(script_name, '?')) != NULL) | |
3664 | *uriptr = '\0'; | |
3665 | ||
b94498cf | 3666 | snprintf(script_filename, sizeof(script_filename), "SCRIPT_FILENAME=%s%s", |
3667 | DocumentRoot, script_name + 12); | |
3668 | ||
a215cf84 | 3669 | snprintf(server_port, sizeof(server_port), "SERVER_PORT=%d", con->serverport); |
ef416fc2 | 3670 | |
1a18c85c | 3671 | if (httpGetField(con->http, HTTP_FIELD_HOST)[0]) |
0268488e MS |
3672 | { |
3673 | char *nameptr; /* Pointer to ":port" */ | |
3674 | ||
3675 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
1a18c85c | 3676 | httpGetField(con->http, HTTP_FIELD_HOST)); |
0268488e MS |
3677 | if ((nameptr = strrchr(server_name, ':')) != NULL && !strchr(nameptr, ']')) |
3678 | *nameptr = '\0'; /* Strip trailing ":port" */ | |
3679 | } | |
3680 | else | |
3681 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
3682 | con->servername); | |
ef416fc2 | 3683 | |
3684 | envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0]))); | |
3685 | ||
b94498cf | 3686 | if (auth_type[0]) |
3687 | envp[envc ++] = auth_type; | |
3688 | ||
ef416fc2 | 3689 | envp[envc ++] = lang; |
3690 | envp[envc ++] = "REDIRECT_STATUS=1"; | |
b94498cf | 3691 | envp[envc ++] = "GATEWAY_INTERFACE=CGI/1.1"; |
ef416fc2 | 3692 | envp[envc ++] = server_name; |
3693 | envp[envc ++] = server_port; | |
3694 | envp[envc ++] = remote_addr; | |
3695 | envp[envc ++] = remote_host; | |
3696 | envp[envc ++] = script_name; | |
b94498cf | 3697 | envp[envc ++] = script_filename; |
ef416fc2 | 3698 | |
b423cd4c | 3699 | if (path_info[0]) |
3700 | envp[envc ++] = path_info; | |
3701 | ||
ef416fc2 | 3702 | if (con->username[0]) |
3703 | { | |
3704 | snprintf(remote_user, sizeof(remote_user), "REMOTE_USER=%s", con->username); | |
3705 | ||
3706 | envp[envc ++] = remote_user; | |
3707 | } | |
3708 | ||
1a18c85c | 3709 | if (httpGetVersion(con->http) == HTTP_VERSION_1_1) |
ef416fc2 | 3710 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.1"; |
1a18c85c | 3711 | else if (httpGetVersion(con->http) == HTTP_VERSION_1_0) |
ef416fc2 | 3712 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.0"; |
3713 | else | |
3714 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/0.9"; | |
3715 | ||
1a18c85c | 3716 | if (httpGetCookie(con->http)) |
ef416fc2 | 3717 | { |
3718 | snprintf(http_cookie, sizeof(http_cookie), "HTTP_COOKIE=%s", | |
1a18c85c | 3719 | httpGetCookie(con->http)); |
ef416fc2 | 3720 | envp[envc ++] = http_cookie; |
3721 | } | |
3722 | ||
1a18c85c | 3723 | if (httpGetField(con->http, HTTP_FIELD_USER_AGENT)[0]) |
ef416fc2 | 3724 | { |
3725 | snprintf(http_user_agent, sizeof(http_user_agent), "HTTP_USER_AGENT=%s", | |
1a18c85c | 3726 | httpGetField(con->http, HTTP_FIELD_USER_AGENT)); |
ef416fc2 | 3727 | envp[envc ++] = http_user_agent; |
3728 | } | |
3729 | ||
1a18c85c | 3730 | if (httpGetField(con->http, HTTP_FIELD_REFERER)[0]) |
f7deaa1a | 3731 | { |
3732 | snprintf(http_referer, sizeof(http_referer), "HTTP_REFERER=%s", | |
1a18c85c | 3733 | httpGetField(con->http, HTTP_FIELD_REFERER)); |
f7deaa1a | 3734 | envp[envc ++] = http_referer; |
3735 | } | |
3736 | ||
cb7f98ee | 3737 | if (con->operation == HTTP_STATE_GET) |
ef416fc2 | 3738 | { |
ef416fc2 | 3739 | envp[envc ++] = "REQUEST_METHOD=GET"; |
3740 | ||
b86bc4cf | 3741 | if (con->query_string) |
ef416fc2 | 3742 | { |
3743 | /* | |
3744 | * Add GET form variables after ?... | |
3745 | */ | |
3746 | ||
b86bc4cf | 3747 | envp[envc ++] = con->query_string; |
ef416fc2 | 3748 | } |
3dfe78b3 MS |
3749 | else |
3750 | envp[envc ++] = "QUERY_STRING="; | |
ef416fc2 | 3751 | } |
3752 | else | |
3753 | { | |
e1d6a774 | 3754 | sprintf(content_length, "CONTENT_LENGTH=" CUPS_LLFMT, |
3755 | CUPS_LLCAST con->bytes); | |
ef416fc2 | 3756 | snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s", |
1a18c85c | 3757 | httpGetField(con->http, HTTP_FIELD_CONTENT_TYPE)); |
ef416fc2 | 3758 | |
3759 | envp[envc ++] = "REQUEST_METHOD=POST"; | |
3760 | envp[envc ++] = content_length; | |
3761 | envp[envc ++] = content_type; | |
3762 | } | |
3763 | ||
3764 | /* | |
3765 | * Tell the CGI if we are using encryption... | |
3766 | */ | |
3767 | ||
1a18c85c | 3768 | if (httpIsEncrypted(con->http)) |
ef416fc2 | 3769 | envp[envc ++] = "HTTPS=ON"; |
3770 | ||
3771 | /* | |
3772 | * Terminate the environment array... | |
3773 | */ | |
3774 | ||
3775 | envp[envc] = NULL; | |
3776 | ||
38e73f87 | 3777 | if (LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 3778 | { |
3779 | for (i = 0; i < argc; i ++) | |
38e73f87 MS |
3780 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
3781 | "[CGI] argv[%d] = \"%s\"", i, argv[i]); | |
ef416fc2 | 3782 | for (i = 0; i < envc; i ++) |
38e73f87 MS |
3783 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
3784 | "[CGI] envp[%d] = \"%s\"", i, envp[i]); | |
ef416fc2 | 3785 | } |
3786 | ||
3787 | /* | |
3788 | * Create a pipe for the output... | |
3789 | */ | |
3790 | ||
3791 | if (cupsdOpenPipe(fds)) | |
3792 | { | |
38e73f87 | 3793 | cupsdLogMessage(CUPSD_LOG_ERROR, "[CGI] Unable to create pipe for %s - %s", |
ef416fc2 | 3794 | argv[0], strerror(errno)); |
3795 | return (0); | |
3796 | } | |
3797 | ||
3798 | /* | |
3799 | * Then execute the command... | |
3800 | */ | |
3801 | ||
3802 | if (cupsdStartProcess(command, argv, envp, infile, fds[1], CGIPipes[1], | |
38e73f87 | 3803 | -1, -1, root, DefaultProfile, NULL, &pid) < 0) |
ef416fc2 | 3804 | { |
3805 | /* | |
3806 | * Error - can't fork! | |
3807 | */ | |
3808 | ||
38e73f87 | 3809 | cupsdLogMessage(CUPSD_LOG_ERROR, "[CGI] Unable to start %s - %s", argv[0], |
ef416fc2 | 3810 | strerror(errno)); |
3811 | ||
3812 | cupsdClosePipe(fds); | |
3813 | pid = 0; | |
3814 | } | |
3815 | else | |
3816 | { | |
3817 | /* | |
3818 | * Fork successful - return the PID... | |
3819 | */ | |
3820 | ||
3821 | if (con->username[0]) | |
0fa6c7fa | 3822 | cupsdAddCert(pid, con->username, con->type); |
ef416fc2 | 3823 | |
38e73f87 | 3824 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[CGI] Started %s (PID %d)", command, pid); |
ef416fc2 | 3825 | |
3826 | *outfile = fds[0]; | |
3827 | close(fds[1]); | |
3828 | } | |
3829 | ||
ef416fc2 | 3830 | return (pid); |
3831 | } | |
3832 | ||
3833 | ||
e07d4801 MS |
3834 | /* |
3835 | * 'valid_host()' - Is the Host: field valid? | |
3836 | */ | |
3837 | ||
3838 | static int /* O - 1 if valid, 0 if not */ | |
3839 | valid_host(cupsd_client_t *con) /* I - Client connection */ | |
3840 | { | |
3841 | cupsd_alias_t *a; /* Current alias */ | |
3842 | cupsd_netif_t *netif; /* Current network interface */ | |
f2534050 MS |
3843 | const char *end; /* End character */ |
3844 | char *ptr; /* Pointer into host value */ | |
e07d4801 MS |
3845 | |
3846 | ||
f2534050 MS |
3847 | /* |
3848 | * Copy the Host: header for later use... | |
3849 | */ | |
3850 | ||
1a18c85c | 3851 | strlcpy(con->clientname, httpGetField(con->http, HTTP_FIELD_HOST), |
f2534050 MS |
3852 | sizeof(con->clientname)); |
3853 | if ((ptr = strrchr(con->clientname, ':')) != NULL && !strchr(ptr, ']')) | |
3854 | { | |
3855 | *ptr++ = '\0'; | |
3856 | con->clientport = atoi(ptr); | |
3857 | } | |
3858 | else | |
3859 | con->clientport = con->serverport; | |
3860 | ||
3861 | /* | |
3862 | * Then validate... | |
3863 | */ | |
e07d4801 | 3864 | |
1a18c85c | 3865 | if (httpAddrLocalhost(httpGetAddress(con->http))) |
e07d4801 MS |
3866 | { |
3867 | /* | |
3868 | * Only allow "localhost" or the equivalent IPv4 or IPv6 numerical | |
3869 | * addresses when accessing CUPS via the loopback interface... | |
3870 | */ | |
3871 | ||
f2534050 MS |
3872 | return (!_cups_strcasecmp(con->clientname, "localhost") || |
3873 | !_cups_strcasecmp(con->clientname, "localhost.") || | |
e07d4801 | 3874 | #ifdef __linux |
f2534050 | 3875 | !_cups_strcasecmp(con->clientname, "localhost.localdomain") || |
e07d4801 | 3876 | #endif /* __linux */ |
f2534050 MS |
3877 | !strcmp(con->clientname, "127.0.0.1") || |
3878 | !strcmp(con->clientname, "[::1]")); | |
e07d4801 MS |
3879 | } |
3880 | ||
37e7e6e0 | 3881 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
e07d4801 MS |
3882 | /* |
3883 | * Check if the hostname is something.local (Bonjour); if so, allow it. | |
3884 | */ | |
3885 | ||
f2534050 MS |
3886 | if ((end = strrchr(con->clientname, '.')) != NULL && end > con->clientname && |
3887 | !end[1]) | |
a29fd7dd MS |
3888 | { |
3889 | /* | |
3890 | * "." on end, work back to second-to-last "."... | |
3891 | */ | |
f2534050 MS |
3892 | |
3893 | for (end --; end > con->clientname && *end != '.'; end --); | |
a29fd7dd MS |
3894 | } |
3895 | ||
3896 | if (end && (!_cups_strcasecmp(end, ".local") || | |
f2534050 | 3897 | !_cups_strcasecmp(end, ".local."))) |
e07d4801 | 3898 | return (1); |
37e7e6e0 | 3899 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
e07d4801 MS |
3900 | |
3901 | /* | |
3902 | * Check if the hostname is an IP address... | |
3903 | */ | |
3904 | ||
f2534050 | 3905 | if (isdigit(con->clientname[0] & 255) || con->clientname[0] == '[') |
e07d4801 MS |
3906 | { |
3907 | /* | |
3908 | * Possible IPv4/IPv6 address... | |
3909 | */ | |
3910 | ||
e07d4801 MS |
3911 | http_addrlist_t *addrlist; /* List of addresses */ |
3912 | ||
3913 | ||
f2534050 | 3914 | if ((addrlist = httpAddrGetList(con->clientname, AF_UNSPEC, NULL)) != NULL) |
e07d4801 MS |
3915 | { |
3916 | /* | |
3917 | * Good IPv4/IPv6 address... | |
3918 | */ | |
3919 | ||
3920 | httpAddrFreeList(addrlist); | |
3921 | return (1); | |
3922 | } | |
3923 | } | |
3924 | ||
3925 | /* | |
3926 | * Check for (alias) name matches... | |
3927 | */ | |
3928 | ||
3929 | for (a = (cupsd_alias_t *)cupsArrayFirst(ServerAlias); | |
3930 | a; | |
3931 | a = (cupsd_alias_t *)cupsArrayNext(ServerAlias)) | |
3932 | { | |
3933 | /* | |
3934 | * "ServerAlias *" allows all host values through... | |
3935 | */ | |
3936 | ||
3937 | if (!strcmp(a->name, "*")) | |
3938 | return (1); | |
3939 | ||
f2534050 | 3940 | if (!_cups_strncasecmp(con->clientname, a->name, a->namelen)) |
e07d4801 MS |
3941 | { |
3942 | /* | |
f2534050 | 3943 | * Prefix matches; check the character at the end - it must be "." or nul. |
e07d4801 MS |
3944 | */ |
3945 | ||
f2534050 | 3946 | end = con->clientname + a->namelen; |
e07d4801 | 3947 | |
f2534050 | 3948 | if (!*end || (*end == '.' && !end[1])) |
e07d4801 MS |
3949 | return (1); |
3950 | } | |
3951 | } | |
3952 | ||
37e7e6e0 | 3953 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
e07d4801 MS |
3954 | for (a = (cupsd_alias_t *)cupsArrayFirst(DNSSDAlias); |
3955 | a; | |
3956 | a = (cupsd_alias_t *)cupsArrayNext(DNSSDAlias)) | |
3957 | { | |
3958 | /* | |
3959 | * "ServerAlias *" allows all host values through... | |
3960 | */ | |
3961 | ||
3962 | if (!strcmp(a->name, "*")) | |
3963 | return (1); | |
3964 | ||
f2534050 | 3965 | if (!_cups_strncasecmp(con->clientname, a->name, a->namelen)) |
e07d4801 MS |
3966 | { |
3967 | /* | |
f2534050 | 3968 | * Prefix matches; check the character at the end - it must be "." or nul. |
e07d4801 MS |
3969 | */ |
3970 | ||
f2534050 | 3971 | end = con->clientname + a->namelen; |
e07d4801 | 3972 | |
f2534050 | 3973 | if (!*end || (*end == '.' && !end[1])) |
e07d4801 MS |
3974 | return (1); |
3975 | } | |
3976 | } | |
37e7e6e0 | 3977 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
e07d4801 MS |
3978 | |
3979 | /* | |
3980 | * Check for interface hostname matches... | |
3981 | */ | |
3982 | ||
3983 | for (netif = (cupsd_netif_t *)cupsArrayFirst(NetIFList); | |
3984 | netif; | |
3985 | netif = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
3986 | { | |
f2534050 | 3987 | if (!_cups_strncasecmp(con->clientname, netif->hostname, netif->hostlen)) |
e07d4801 MS |
3988 | { |
3989 | /* | |
f2534050 | 3990 | * Prefix matches; check the character at the end - it must be "." or nul. |
e07d4801 MS |
3991 | */ |
3992 | ||
f2534050 | 3993 | end = con->clientname + netif->hostlen; |
e07d4801 | 3994 | |
f2534050 | 3995 | if (!*end || (*end == '.' && !end[1])) |
e07d4801 MS |
3996 | return (1); |
3997 | } | |
3998 | } | |
3999 | ||
4000 | return (0); | |
4001 | } | |
4002 | ||
4003 | ||
ef416fc2 | 4004 | /* |
a74454a7 | 4005 | * 'write_file()' - Send a file via HTTP. |
e1d6a774 | 4006 | */ |
4007 | ||
4008 | static int /* O - 0 on failure, 1 on success */ | |
a74454a7 | 4009 | write_file(cupsd_client_t *con, /* I - Client connection */ |
4010 | http_status_t code, /* I - HTTP status */ | |
4011 | char *filename, /* I - Filename */ | |
4012 | char *type, /* I - File type */ | |
4013 | struct stat *filestats) /* O - File information */ | |
e1d6a774 | 4014 | { |
4015 | con->file = open(filename, O_RDONLY); | |
4016 | ||
1a18c85c MS |
4017 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
4018 | "write_file code=%d, filename=\"%s\" (%d), " | |
4019 | "type=\"%s\", filestats=%p", | |
4020 | code, filename, con->file, type ? type : "(null)", filestats); | |
e1d6a774 | 4021 | |
4022 | if (con->file < 0) | |
4023 | return (0); | |
4024 | ||
4025 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
4026 | ||
1a18c85c MS |
4027 | con->pipe_pid = 0; |
4028 | con->sent_header = 1; | |
e1d6a774 | 4029 | |
1a18c85c | 4030 | httpClearFields(con->http); |
e1d6a774 | 4031 | |
1a18c85c | 4032 | httpSetLength(con->http, (size_t)filestats->st_size); |
d09495fa | 4033 | |
1a18c85c MS |
4034 | httpSetField(con->http, HTTP_FIELD_LAST_MODIFIED, |
4035 | httpGetDateString(filestats->st_mtime)); | |
e1d6a774 | 4036 | |
1a18c85c MS |
4037 | if (!cupsdSendHeader(con, code, type, CUPSD_AUTH_NONE)) |
4038 | return (0); | |
e1d6a774 | 4039 | |
1a18c85c | 4040 | cupsdAddSelect(httpGetFd(con->http), NULL, (cupsd_selfunc_t)cupsdWriteClient, con); |
e1d6a774 | 4041 | |
1a18c85c | 4042 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Sending file."); |
1bc82dd9 | 4043 | |
e1d6a774 | 4044 | return (1); |
4045 | } | |
4046 | ||
4047 | ||
4048 | /* | |
f899b121 | 4049 | * 'write_pipe()' - Flag that data is available on the CGI pipe. |
4050 | */ | |
4051 | ||
4052 | static void | |
4053 | write_pipe(cupsd_client_t *con) /* I - Client connection */ | |
4054 | { | |
1a18c85c MS |
4055 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "write_pipe CGI output on fd %d", |
4056 | con->file); | |
f899b121 | 4057 | |
4058 | con->file_ready = 1; | |
4059 | ||
4060 | cupsdRemoveSelect(con->file); | |
1a18c85c | 4061 | cupsdAddSelect(httpGetFd(con->http), NULL, (cupsd_selfunc_t)cupsdWriteClient, con); |
1bc82dd9 | 4062 | |
1a18c85c | 4063 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "CGI data ready to be sent."); |
f899b121 | 4064 | } |
4065 | ||
4066 | ||
4067 | /* | |
a215cf84 | 4068 | * End of "$Id: client.c 12701 2015-06-08 18:33:44Z msweet $". |
ef416fc2 | 4069 | */ |