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Commit | Line | Data |
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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
5ec1fd3d | 4 | * Client routines for the CUPS scheduler. |
ef416fc2 | 5 | * |
07623986 | 6 | * Copyright 2007-2014 by Apple Inc. |
5ec1fd3d | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
f7deaa1a | 8 | * |
5ec1fd3d MS |
9 | * This file contains Kerberos support code, copyright 2006 by |
10 | * Jelmer Vernooij. | |
ef416fc2 | 11 | * |
5ec1fd3d 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 | ||
5ec1fd3d | 23 | #define _CUPS_NO_DEPRECATED |
d21dc0ed | 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); | |
d3d89474 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, |
07623986 | 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 | { | |
48bd1142 | 68 | const char *hostname; /* Hostname of client */ |
996acce8 | 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 | ||
996acce8 MS |
129 | con->number = ++ LastClientNumber; |
130 | con->file = -1; | |
ef416fc2 | 131 | |
996acce8 | 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 | /* |
996acce8 | 145 | * Save the connected address and port number... |
22c9029b | 146 | */ |
ef416fc2 | 147 | |
996acce8 | 148 | con->clientaddr = lis->address; |
ef416fc2 | 149 | |
ef416fc2 | 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)) | |
996acce8 | 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 " |
996acce8 | 171 | "from %s.", |
749b1e90 | 172 | MaxClientsPerHost, |
996acce8 | 173 | httpGetHostname(con->http, name, sizeof(name))); |
ef416fc2 | 174 | } |
175 | ||
996acce8 | 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 | ||
48bd1142 MS |
185 | if (HostNameLookups) |
186 | hostname = httpResolveHostname(con->http, NULL, 0); | |
ef416fc2 | 187 | else |
48bd1142 | 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 | ||
996acce8 | 196 | httpClose(con->http); |
ef416fc2 | 197 | |
996acce8 | 198 | cupsdLogClient(con, CUPSD_LOG_WARN, |
ef416fc2 | 199 | "Name lookup failed - connection from %s closed!", |
5ec1fd3d | 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 | ||
48bd1142 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) | |
5ec1fd3d | 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 | ||
996acce8 | 237 | httpClose(con->http); |
ef416fc2 | 238 | |
996acce8 | 239 | cupsdLogClient(con, CUPSD_LOG_WARN, |
ef416fc2 | 240 | "IP lookup failed - connection from %s closed!", |
5ec1fd3d | 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 | ||
996acce8 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 | { | |
996acce8 | 258 | httpClose(con->http); |
749b1e90 | 259 | |
996acce8 | 260 | cupsdLogClient(con, CUPSD_LOG_WARN, |
749b1e90 | 261 | "Connection from %s refused by /etc/hosts.allow and " |
5ec1fd3d | 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 |
5ec1fd3d | 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 */ | |
996acce8 | 274 | char peername[256]; /* Name of process */ |
cb7f98ee MS |
275 | |
276 | peersize = sizeof(peerpid); | |
3e4dcdb9 | 277 | if (!getsockopt(httpGetFd(con->http), SOL_LOCAL, LOCAL_PEERPID, &peerpid, |
996acce8 | 278 | &peersize)) |
cb7f98ee | 279 | { |
3e4dcdb9 | 280 | if (!proc_name((int)peerpid, peername, sizeof(peername))) |
996acce8 MS |
281 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
282 | "Accepted from %s (Domain ???[%d])", | |
5ec1fd3d | 283 | httpGetHostname(con->http, NULL, 0), (int)peerpid); |
cb7f98ee | 284 | else |
996acce8 MS |
285 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
286 | "Accepted from %s (Domain %s[%d])", | |
3e4dcdb9 | 287 | httpGetHostname(con->http, NULL, 0), peername, (int)peerpid); |
cb7f98ee MS |
288 | } |
289 | else | |
290 | # endif /* __APPLE__ */ | |
291 | ||
996acce8 | 292 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Accepted from %s (Domain)", |
5ec1fd3d | 293 | httpGetHostname(con->http, NULL, 0)); |
cb7f98ee | 294 | } |
ef416fc2 | 295 | else |
296 | #endif /* AF_LOCAL */ | |
996acce8 | 297 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Accepted from %s:%d (IPv%d)", |
5ec1fd3d MS |
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); | |
996acce8 | 307 | if (getsockname(httpGetFd(con->http), (struct sockaddr *)&temp, &addrlen)) |
ef416fc2 | 308 | { |
996acce8 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 |
5ec1fd3d | 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 | ||
996acce8 MS |
344 | cupsdAddSelect(httpGetFd(con->http), (cupsd_selfunc_t)cupsdReadClient, NULL, |
345 | con); | |
ef416fc2 | 346 | |
996acce8 | 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 | ||
5ec1fd3d | 361 | if (lis->encryption == HTTP_ENCRYPTION_ALWAYS) |
ef416fc2 | 362 | { |
363 | /* | |
364 | * https connection; go secure... | |
365 | */ | |
366 | ||
d3d89474 | 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 | ||
996acce8 | 407 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing connection."); |
ef416fc2 | 408 | |
409 | /* | |
410 | * Flush pending writes before closing... | |
411 | */ | |
412 | ||
996acce8 | 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 | ||
996acce8 | 439 | if (httpGetFd(con->http) >= 0) |
ef416fc2 | 440 | { |
3dfe78b3 MS |
441 | cupsArrayRemove(ActiveClients, con); |
442 | cupsdSetBusyState(); | |
443 | ||
5ec1fd3d 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 | ||
5ec1fd3d | 459 | httpShutdown(con->http); |
996acce8 MS |
460 | cupsdAddSelect(httpGetFd(con->http), (cupsd_selfunc_t)cupsdReadClient, |
461 | NULL, con); | |
1bc82dd9 | 462 | |
996acce8 | 463 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for socket close."); |
ef416fc2 | 464 | } |
465 | else | |
466 | { | |
467 | /* | |
468 | * Shut the socket down fully... | |
469 | */ | |
470 | ||
996acce8 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 | ||
5ec1fd3d MS |
483 | cupsdRemoveSelect(httpGetFd(con->http)); |
484 | ||
996acce8 | 485 | httpClose(con->http); |
ef416fc2 | 486 | |
487 | cupsdClearString(&con->filename); | |
488 | cupsdClearString(&con->command); | |
489 | cupsdClearString(&con->options); | |
b86bc4cf | 490 | cupsdClearString(&con->query_string); |
ef416fc2 | 491 | |
492 | if (con->request) | |
493 | { | |
494 | ippDelete(con->request); | |
495 | con->request = NULL; | |
496 | } | |
497 | ||
498 | if (con->response) | |
499 | { | |
500 | ippDelete(con->response); | |
501 | con->response = NULL; | |
502 | } | |
503 | ||
504 | if (con->language) | |
505 | { | |
506 | cupsLangFree(con->language); | |
507 | con->language = NULL; | |
508 | } | |
509 | ||
f7deaa1a | 510 | #ifdef HAVE_AUTHORIZATION_H |
511 | if (con->authref) | |
512 | { | |
513 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
514 | con->authref = NULL; | |
515 | } | |
516 | #endif /* HAVE_AUTHORIZATION_H */ | |
517 | ||
ef416fc2 | 518 | /* |
519 | * Re-enable new client connections if we are going back under the | |
520 | * limit... | |
521 | */ | |
522 | ||
bd7854cb | 523 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 524 | cupsdResumeListening(); |
525 | ||
526 | /* | |
527 | * Compact the list of clients as necessary... | |
528 | */ | |
529 | ||
bd7854cb | 530 | cupsArrayRemove(Clients, con); |
ef416fc2 | 531 | |
bd7854cb | 532 | free(con); |
ef416fc2 | 533 | } |
534 | ||
535 | return (partial); | |
536 | } | |
537 | ||
538 | ||
ef416fc2 | 539 | /* |
540 | * 'cupsdReadClient()' - Read data from a client. | |
541 | */ | |
542 | ||
f7deaa1a | 543 | void |
ef416fc2 | 544 | cupsdReadClient(cupsd_client_t *con) /* I - Client to read from */ |
545 | { | |
546 | char line[32768], /* Line from client... */ | |
ef416fc2 | 547 | locale[64], /* Locale */ |
548 | *ptr; /* Pointer into strings */ | |
ef416fc2 | 549 | http_status_t status; /* Transfer status */ |
550 | ipp_state_t ipp_state; /* State of IPP transfer */ | |
551 | int bytes; /* Number of bytes to POST */ | |
552 | char *filename; /* Name of file for GET/HEAD */ | |
553 | char buf[1024]; /* Buffer for real filename */ | |
554 | struct stat filestats; /* File information */ | |
555 | mime_type_t *type; /* MIME type of file */ | |
556 | cupsd_printer_t *p; /* Printer */ | |
557 | static unsigned request_id = 0; /* Request ID for temp files */ | |
558 | ||
559 | ||
5ec1fd3d | 560 | status = HTTP_STATUS_CONTINUE; |
ef416fc2 | 561 | |
996acce8 MS |
562 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
563 | "cupsdReadClient " | |
564 | "error=%d, " | |
565 | "used=%d, " | |
566 | "state=%s, " | |
567 | "data_encoding=HTTP_ENCODING_%s, " | |
568 | "data_remaining=" CUPS_LLFMT ", " | |
569 | "request=%p(%s), " | |
570 | "file=%d", | |
5ec1fd3d MS |
571 | httpError(con->http), (int)httpGetReady(con->http), |
572 | httpStateString(httpGetState(con->http)), | |
573 | httpIsChunked(con->http) ? "CHUNKED" : "LENGTH", | |
574 | CUPS_LLCAST httpGetRemaining(con->http), | |
996acce8 | 575 | con->request, |
a73ca01e | 576 | con->request ? ippStateString(ippGetState(con->request)) : "", |
996acce8 | 577 | con->file); |
ef416fc2 | 578 | |
43dcaf3b MS |
579 | if (httpGetState(con->http) == HTTP_STATE_GET_SEND || |
580 | httpGetState(con->http) == HTTP_STATE_POST_SEND || | |
581 | httpGetState(con->http) == HTTP_STATE_STATUS) | |
582 | { | |
583 | /* | |
584 | * If we get called in the wrong state, then something went wrong with the | |
585 | * connection and we need to shut it down... | |
586 | */ | |
587 | ||
588 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing on unexpected HTTP read state %s.", | |
589 | httpStateString(httpGetState(con->http))); | |
590 | cupsdCloseClient(con); | |
591 | return; | |
592 | } | |
593 | ||
ef416fc2 | 594 | #ifdef HAVE_SSL |
595 | if (con->auto_ssl) | |
596 | { | |
597 | /* | |
598 | * Automatically check for a SSL/TLS handshake... | |
599 | */ | |
600 | ||
601 | con->auto_ssl = 0; | |
602 | ||
996acce8 | 603 | if (recv(httpGetFd(con->http), buf, 1, MSG_PEEK) == 1 && |
ef416fc2 | 604 | (!buf[0] || !strchr("DGHOPT", buf[0]))) |
605 | { | |
606 | /* | |
607 | * Encrypt this connection... | |
608 | */ | |
609 | ||
996acce8 MS |
610 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
611 | "Saw first byte %02X, auto-negotiating " | |
612 | "SSL/TLS session.", buf[0] & 255); | |
ef416fc2 | 613 | |
d3d89474 | 614 | if (cupsd_start_tls(con, HTTP_ENCRYPTION_ALWAYS)) |
f7deaa1a | 615 | cupsdCloseClient(con); |
411affcf | 616 | |
f7deaa1a | 617 | return; |
ef416fc2 | 618 | } |
619 | } | |
620 | #endif /* HAVE_SSL */ | |
621 | ||
5ec1fd3d | 622 | switch (httpGetState(con->http)) |
ef416fc2 | 623 | { |
cb7f98ee | 624 | case HTTP_STATE_WAITING : |
ef416fc2 | 625 | /* |
626 | * See if we've received a request line... | |
627 | */ | |
628 | ||
d21dc0ed MS |
629 | con->operation = httpReadRequest(con->http, con->uri, sizeof(con->uri)); |
630 | if (con->operation == HTTP_STATE_ERROR || | |
631 | con->operation == HTTP_STATE_UNKNOWN_METHOD || | |
632 | con->operation == HTTP_STATE_UNKNOWN_VERSION) | |
ef416fc2 | 633 | { |
d21dc0ed | 634 | if (httpError(con->http)) |
996acce8 MS |
635 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
636 | "HTTP_STATE_WAITING Closing for error %d (%s)", | |
5ec1fd3d | 637 | httpError(con->http), strerror(httpError(con->http))); |
f11a948a | 638 | else |
996acce8 | 639 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
d21dc0ed MS |
640 | "HTTP_STATE_WAITING Closing on error: %s", |
641 | cupsLastErrorString()); | |
f11a948a | 642 | |
f7deaa1a | 643 | cupsdCloseClient(con); |
644 | return; | |
ef416fc2 | 645 | } |
646 | ||
647 | /* | |
648 | * Ignore blank request lines... | |
649 | */ | |
650 | ||
d21dc0ed | 651 | if (con->operation == HTTP_STATE_WAITING) |
ef416fc2 | 652 | break; |
653 | ||
654 | /* | |
655 | * Clear other state variables... | |
656 | */ | |
657 | ||
d21dc0ed MS |
658 | con->bytes = 0; |
659 | con->file = -1; | |
660 | con->file_ready = 0; | |
661 | con->pipe_pid = 0; | |
662 | con->username[0] = '\0'; | |
663 | con->password[0] = '\0'; | |
ef416fc2 | 664 | |
665 | cupsdClearString(&con->command); | |
666 | cupsdClearString(&con->options); | |
b86bc4cf | 667 | cupsdClearString(&con->query_string); |
ef416fc2 | 668 | |
2abf387c | 669 | if (con->request) |
670 | { | |
671 | ippDelete(con->request); | |
672 | con->request = NULL; | |
673 | } | |
674 | ||
675 | if (con->response) | |
676 | { | |
677 | ippDelete(con->response); | |
678 | con->response = NULL; | |
679 | } | |
680 | ||
681 | if (con->language) | |
ef416fc2 | 682 | { |
683 | cupsLangFree(con->language); | |
684 | con->language = NULL; | |
685 | } | |
686 | ||
09a101d6 | 687 | #ifdef HAVE_GSSAPI |
97c9a8d7 | 688 | con->have_gss = 0; |
07ed0e9a | 689 | con->gss_uid = 0; |
09a101d6 | 690 | #endif /* HAVE_GSSAPI */ |
691 | ||
ef416fc2 | 692 | /* |
693 | * Handle full URLs in the request line... | |
694 | */ | |
695 | ||
696 | if (strcmp(con->uri, "*")) | |
697 | { | |
e6013cfa | 698 | char scheme[HTTP_MAX_URI], /* Method/scheme */ |
ef416fc2 | 699 | userpass[HTTP_MAX_URI], /* Username:password */ |
700 | hostname[HTTP_MAX_URI], /* Hostname */ | |
701 | resource[HTTP_MAX_URI]; /* Resource path */ | |
702 | int port; /* Port number */ | |
703 | ||
ef416fc2 | 704 | /* |
705 | * Separate the URI into its components... | |
706 | */ | |
707 | ||
d21dc0ed MS |
708 | if (httpSeparateURI(HTTP_URI_CODING_MOST, con->uri, |
709 | scheme, sizeof(scheme), | |
710 | userpass, sizeof(userpass), | |
711 | hostname, sizeof(hostname), &port, | |
712 | resource, sizeof(resource)) < HTTP_URI_STATUS_OK) | |
713 | { | |
714 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad URI \"%s\" in request.", | |
715 | con->uri); | |
716 | cupsdSendError(con, HTTP_STATUS_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE); | |
717 | cupsdCloseClient(con); | |
718 | return; | |
719 | } | |
ef416fc2 | 720 | |
d21dc0ed | 721 | /* |
ef416fc2 | 722 | * Only allow URIs with the servername, localhost, or an IP |
723 | * address... | |
724 | */ | |
725 | ||
e6013cfa | 726 | if (strcmp(scheme, "file") && |
88f9aafc MS |
727 | _cups_strcasecmp(hostname, ServerName) && |
728 | _cups_strcasecmp(hostname, "localhost") && | |
d21dc0ed | 729 | !cupsArrayFind(ServerAlias, hostname) && |
e6013cfa | 730 | !isdigit(hostname[0]) && hostname[0] != '[') |
ef416fc2 | 731 | { |
732 | /* | |
733 | * Nope, we don't do proxies... | |
734 | */ | |
735 | ||
996acce8 MS |
736 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Bad URI \"%s\" in request.", |
737 | con->uri); | |
5ec1fd3d | 738 | cupsdSendError(con, HTTP_STATUS_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE); |
f7deaa1a | 739 | cupsdCloseClient(con); |
740 | return; | |
ef416fc2 | 741 | } |
742 | ||
743 | /* | |
744 | * Copy the resource portion back into the URI; both resource and | |
745 | * con->uri are HTTP_MAX_URI bytes in size... | |
746 | */ | |
747 | ||
5a9febac | 748 | strlcpy(con->uri, resource, sizeof(con->uri)); |
ef416fc2 | 749 | } |
750 | ||
751 | /* | |
752 | * Process the request... | |
753 | */ | |
754 | ||
dfd5680b | 755 | gettimeofday(&(con->start), NULL); |
ef416fc2 | 756 | |
996acce8 | 757 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "%s %s HTTP/%d.%d", |
a73ca01e | 758 | httpStateString(con->operation) + 11, con->uri, |
d21dc0ed MS |
759 | httpGetVersion(con->http) / 100, |
760 | httpGetVersion(con->http) % 100); | |
ef416fc2 | 761 | |
49d87452 MS |
762 | if (!cupsArrayFind(ActiveClients, con)) |
763 | { | |
764 | cupsArrayAdd(ActiveClients, con); | |
765 | cupsdSetBusyState(); | |
766 | } | |
3dfe78b3 | 767 | |
cb7f98ee MS |
768 | case HTTP_STATE_OPTIONS : |
769 | case HTTP_STATE_DELETE : | |
770 | case HTTP_STATE_GET : | |
771 | case HTTP_STATE_HEAD : | |
772 | case HTTP_STATE_POST : | |
773 | case HTTP_STATE_PUT : | |
774 | case HTTP_STATE_TRACE : | |
ef416fc2 | 775 | /* |
776 | * Parse incoming parameters until the status changes... | |
777 | */ | |
778 | ||
5ec1fd3d MS |
779 | while ((status = httpUpdate(con->http)) == HTTP_STATUS_CONTINUE) |
780 | if (!httpGetReady(con->http)) | |
f7deaa1a | 781 | break; |
ef416fc2 | 782 | |
5ec1fd3d | 783 | if (status != HTTP_STATUS_OK && status != HTTP_STATUS_CONTINUE) |
ef416fc2 | 784 | { |
5ec1fd3d | 785 | if (httpError(con->http) && httpError(con->http) != EPIPE) |
996acce8 MS |
786 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
787 | "Closing for error %d (%s) while reading headers.", | |
5ec1fd3d | 788 | httpError(con->http), strerror(httpError(con->http))); |
f11a948a | 789 | else |
996acce8 MS |
790 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
791 | "Closing on EOF while reading headers."); | |
f11a948a | 792 | |
5ec1fd3d | 793 | cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 794 | cupsdCloseClient(con); |
795 | return; | |
ef416fc2 | 796 | } |
797 | break; | |
798 | ||
799 | default : | |
5ec1fd3d | 800 | if (!httpGetReady(con->http) && recv(httpGetFd(con->http), buf, 1, MSG_PEEK) < 1) |
e6013cfa MS |
801 | { |
802 | /* | |
803 | * Connection closed... | |
804 | */ | |
805 | ||
996acce8 | 806 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing on EOF."); |
e6013cfa MS |
807 | cupsdCloseClient(con); |
808 | return; | |
809 | } | |
ef416fc2 | 810 | break; /* Anti-compiler-warning-code */ |
811 | } | |
812 | ||
813 | /* | |
814 | * Handle new transfers... | |
815 | */ | |
816 | ||
dfc45c1b MS |
817 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Read: status=%d", status); |
818 | ||
5ec1fd3d | 819 | if (status == HTTP_STATUS_OK) |
ef416fc2 | 820 | { |
5ec1fd3d | 821 | if (httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE)[0]) |
ef416fc2 | 822 | { |
823 | /* | |
824 | * Figure out the locale from the Accept-Language and Content-Type | |
825 | * fields... | |
826 | */ | |
827 | ||
5ec1fd3d | 828 | if ((ptr = strchr(httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE), |
f11a948a | 829 | ',')) != NULL) |
ef416fc2 | 830 | *ptr = '\0'; |
831 | ||
5ec1fd3d | 832 | if ((ptr = strchr(httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE), |
f11a948a | 833 | ';')) != NULL) |
ef416fc2 | 834 | *ptr = '\0'; |
835 | ||
5ec1fd3d | 836 | if ((ptr = strstr(httpGetField(con->http, HTTP_FIELD_CONTENT_TYPE), |
f11a948a | 837 | "charset=")) != NULL) |
ef416fc2 | 838 | { |
839 | /* | |
840 | * Combine language and charset, and trim any extra params in the | |
841 | * content-type. | |
842 | */ | |
843 | ||
844 | snprintf(locale, sizeof(locale), "%s.%s", | |
5ec1fd3d | 845 | httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE), ptr + 8); |
ef416fc2 | 846 | |
847 | if ((ptr = strchr(locale, ',')) != NULL) | |
848 | *ptr = '\0'; | |
849 | } | |
850 | else | |
f8b3a85b | 851 | snprintf(locale, sizeof(locale), "%s.UTF-8", |
5ec1fd3d | 852 | httpGetField(con->http, HTTP_FIELD_ACCEPT_LANGUAGE)); |
d6ae789d | 853 | |
ef416fc2 | 854 | con->language = cupsLangGet(locale); |
855 | } | |
856 | else | |
857 | con->language = cupsLangGet(DefaultLocale); | |
858 | ||
859 | cupsdAuthorize(con); | |
860 | ||
5ec1fd3d | 861 | if (!_cups_strncasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), |
85dda01c | 862 | "Keep-Alive", 10) && KeepAlive) |
5ec1fd3d MS |
863 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_ON); |
864 | else if (!_cups_strncasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), | |
85dda01c | 865 | "close", 5)) |
5ec1fd3d | 866 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); |
ef416fc2 | 867 | |
5ec1fd3d MS |
868 | if (!httpGetField(con->http, HTTP_FIELD_HOST)[0] && |
869 | httpGetVersion(con->http) >= HTTP_VERSION_1_1) | |
ef416fc2 | 870 | { |
871 | /* | |
872 | * HTTP/1.1 and higher require the "Host:" field... | |
873 | */ | |
874 | ||
5ec1fd3d | 875 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 876 | { |
996acce8 | 877 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Missing Host: field in request."); |
f7deaa1a | 878 | cupsdCloseClient(con); |
879 | return; | |
880 | } | |
ef416fc2 | 881 | } |
e07d4801 | 882 | else if (!valid_host(con)) |
e6013cfa MS |
883 | { |
884 | /* | |
885 | * Access to localhost must use "localhost" or the corresponding IPv4 | |
886 | * or IPv6 values in the Host: field. | |
887 | */ | |
888 | ||
996acce8 MS |
889 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
890 | "Request from \"%s\" using invalid Host: field \"%s\".", | |
5ec1fd3d | 891 | httpGetHostname(con->http, NULL, 0), httpGetField(con->http, HTTP_FIELD_HOST)); |
e6013cfa | 892 | |
5ec1fd3d | 893 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
e6013cfa MS |
894 | { |
895 | cupsdCloseClient(con); | |
896 | return; | |
897 | } | |
898 | } | |
cb7f98ee | 899 | else if (con->operation == HTTP_STATE_OPTIONS) |
ef416fc2 | 900 | { |
901 | /* | |
902 | * Do OPTIONS command... | |
903 | */ | |
904 | ||
5bd77a73 | 905 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
ef416fc2 | 906 | { |
a73ca01e MS |
907 | httpClearFields(con->http); |
908 | ||
5ec1fd3d | 909 | if (!cupsdSendHeader(con, HTTP_STATUS_UNAUTHORIZED, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 910 | { |
911 | cupsdCloseClient(con); | |
912 | return; | |
913 | } | |
ef416fc2 | 914 | } |
915 | ||
a80b2360 | 916 | if (!_cups_strcasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), "Upgrade") && strstr(httpGetField(con->http, HTTP_FIELD_UPGRADE), "TLS/") != NULL && !httpIsEncrypted(con->http)) |
ef416fc2 | 917 | { |
918 | #ifdef HAVE_SSL | |
919 | /* | |
920 | * Do encryption stuff... | |
921 | */ | |
922 | ||
a73ca01e | 923 | httpClearFields(con->http); |
ef416fc2 | 924 | |
e200616a MS |
925 | if (!cupsdSendHeader(con, HTTP_STATUS_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE)) |
926 | { | |
927 | cupsdCloseClient(con); | |
928 | return; | |
929 | } | |
e200616a | 930 | |
d3d89474 | 931 | if (cupsd_start_tls(con, HTTP_ENCRYPTION_REQUIRED)) |
f7deaa1a | 932 | { |
933 | cupsdCloseClient(con); | |
934 | return; | |
935 | } | |
ef416fc2 | 936 | #else |
5bd77a73 | 937 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 938 | { |
939 | cupsdCloseClient(con); | |
940 | return; | |
941 | } | |
ef416fc2 | 942 | #endif /* HAVE_SSL */ |
943 | } | |
944 | ||
a73ca01e | 945 | httpClearFields(con->http); |
e200616a MS |
946 | httpSetField(con->http, HTTP_FIELD_ALLOW, |
947 | "GET, HEAD, OPTIONS, POST, PUT"); | |
948 | httpSetField(con->http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
949 | ||
950 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, NULL, CUPSD_AUTH_NONE)) | |
951 | { | |
952 | cupsdCloseClient(con); | |
953 | return; | |
954 | } | |
ef416fc2 | 955 | } |
956 | else if (!is_path_absolute(con->uri)) | |
957 | { | |
958 | /* | |
959 | * Protect against malicious users! | |
960 | */ | |
961 | ||
996acce8 MS |
962 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
963 | "Request for non-absolute resource \"%s\".", con->uri); | |
bf3816c7 | 964 | |
5ec1fd3d | 965 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 966 | { |
967 | cupsdCloseClient(con); | |
968 | return; | |
969 | } | |
ef416fc2 | 970 | } |
971 | else | |
972 | { | |
5ec1fd3d | 973 | if (!_cups_strcasecmp(httpGetField(con->http, HTTP_FIELD_CONNECTION), |
d21dc0ed | 974 | "Upgrade") && !httpIsEncrypted(con->http)) |
ef416fc2 | 975 | { |
976 | #ifdef HAVE_SSL | |
977 | /* | |
978 | * Do encryption stuff... | |
979 | */ | |
980 | ||
a73ca01e | 981 | httpClearFields(con->http); |
ef416fc2 | 982 | |
e200616a MS |
983 | if (!cupsdSendHeader(con, HTTP_STATUS_SWITCHING_PROTOCOLS, NULL, |
984 | CUPSD_AUTH_NONE)) | |
985 | { | |
986 | cupsdCloseClient(con); | |
987 | return; | |
988 | } | |
ef416fc2 | 989 | |
d3d89474 | 990 | if (cupsd_start_tls(con, HTTP_ENCRYPTION_REQUIRED)) |
f7deaa1a | 991 | { |
992 | cupsdCloseClient(con); | |
993 | return; | |
994 | } | |
ef416fc2 | 995 | #else |
5bd77a73 | 996 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 997 | { |
998 | cupsdCloseClient(con); | |
999 | return; | |
1000 | } | |
ef416fc2 | 1001 | #endif /* HAVE_SSL */ |
1002 | } | |
1003 | ||
5ec1fd3d | 1004 | if ((status = cupsdIsAuthorized(con, NULL)) != HTTP_STATUS_OK) |
ef416fc2 | 1005 | { |
5bd77a73 | 1006 | cupsdSendError(con, status, CUPSD_AUTH_NONE); |
f7deaa1a | 1007 | cupsdCloseClient(con); |
1008 | return; | |
ef416fc2 | 1009 | } |
1010 | ||
d21dc0ed | 1011 | if (httpGetExpect(con->http) && |
cb7f98ee | 1012 | (con->operation == HTTP_STATE_POST || con->operation == HTTP_STATE_PUT)) |
ef416fc2 | 1013 | { |
d21dc0ed | 1014 | if (httpGetExpect(con->http) == HTTP_STATUS_CONTINUE) |
b423cd4c | 1015 | { |
1016 | /* | |
1017 | * Send 100-continue header... | |
1018 | */ | |
1019 | ||
a73ca01e | 1020 | if (httpWriteResponse(con->http, HTTP_STATUS_CONTINUE)) |
f7deaa1a | 1021 | { |
1022 | cupsdCloseClient(con); | |
1023 | return; | |
1024 | } | |
b423cd4c | 1025 | } |
1026 | else | |
1027 | { | |
1028 | /* | |
1029 | * Send 417-expectation-failed header... | |
1030 | */ | |
1031 | ||
a73ca01e | 1032 | httpClearFields(con->http); |
e200616a MS |
1033 | httpSetField(con->http, HTTP_FIELD_CONTENT_LENGTH, "0"); |
1034 | ||
a73ca01e MS |
1035 | cupsdSendError(con, HTTP_STATUS_EXPECTATION_FAILED, CUPSD_AUTH_NONE); |
1036 | cupsdCloseClient(con); | |
1037 | return; | |
b423cd4c | 1038 | } |
ef416fc2 | 1039 | } |
1040 | ||
5ec1fd3d | 1041 | switch (httpGetState(con->http)) |
ef416fc2 | 1042 | { |
cb7f98ee | 1043 | case HTTP_STATE_GET_SEND : |
dfc45c1b MS |
1044 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Processing GET %s", con->uri); |
1045 | ||
db8b865d | 1046 | if ((!strncmp(con->uri, "/ppd/", 5) || |
6961465f MS |
1047 | !strncmp(con->uri, "/printers/", 10) || |
1048 | !strncmp(con->uri, "/classes/", 9)) && | |
ef416fc2 | 1049 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) |
1050 | { | |
1051 | /* | |
1052 | * Send PPD file - get the real printer name since printer | |
1053 | * names are not case sensitive but filenames can be... | |
1054 | */ | |
1055 | ||
1056 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1057 | ||
db8b865d MS |
1058 | if (!strncmp(con->uri, "/ppd/", 5)) |
1059 | p = cupsdFindPrinter(con->uri + 5); | |
6961465f | 1060 | else if (!strncmp(con->uri, "/printers/", 10)) |
db8b865d | 1061 | p = cupsdFindPrinter(con->uri + 10); |
6961465f MS |
1062 | else |
1063 | { | |
1064 | p = cupsdFindClass(con->uri + 9); | |
1065 | ||
1066 | if (p) | |
1067 | { | |
1068 | int i; /* Looping var */ | |
1069 | ||
1070 | for (i = 0; i < p->num_printers; i ++) | |
1071 | { | |
1072 | if (!(p->printers[i]->type & CUPS_PRINTER_CLASS)) | |
1073 | { | |
1074 | char ppdname[1024];/* PPD filename */ | |
1075 | ||
1076 | snprintf(ppdname, sizeof(ppdname), "%s/ppd/%s.ppd", | |
1077 | ServerRoot, p->printers[i]->name); | |
1078 | if (!access(ppdname, 0)) | |
1079 | { | |
1080 | p = p->printers[i]; | |
1081 | break; | |
1082 | } | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | if (i >= p->num_printers) | |
1087 | p = NULL; | |
1088 | } | |
1089 | } | |
db8b865d MS |
1090 | |
1091 | if (p) | |
1092 | { | |
ef416fc2 | 1093 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); |
db8b865d | 1094 | } |
ef416fc2 | 1095 | else |
1096 | { | |
5ec1fd3d | 1097 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1098 | { |
1099 | cupsdCloseClient(con); | |
1100 | return; | |
1101 | } | |
ef416fc2 | 1102 | |
1103 | break; | |
1104 | } | |
1105 | } | |
db8b865d MS |
1106 | else if ((!strncmp(con->uri, "/icons/", 7) || |
1107 | !strncmp(con->uri, "/printers/", 10) || | |
7cf5915e MS |
1108 | !strncmp(con->uri, "/classes/", 9)) && |
1109 | !strcmp(con->uri + strlen(con->uri) - 4, ".png")) | |
1110 | { | |
1111 | /* | |
1112 | * Send icon file - get the real queue name since queue names are | |
1113 | * not case sensitive but filenames can be... | |
1114 | */ | |
1115 | ||
1116 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".png" */ | |
1117 | ||
db8b865d MS |
1118 | if (!strncmp(con->uri, "/icons/", 7)) |
1119 | p = cupsdFindPrinter(con->uri + 7); | |
1120 | else if (!strncmp(con->uri, "/printers/", 10)) | |
7cf5915e MS |
1121 | p = cupsdFindPrinter(con->uri + 10); |
1122 | else | |
6961465f MS |
1123 | { |
1124 | p = cupsdFindClass(con->uri + 9); | |
1125 | ||
1126 | if (p) | |
1127 | { | |
1128 | int i; /* Looping var */ | |
1129 | ||
1130 | for (i = 0; i < p->num_printers; i ++) | |
1131 | { | |
1132 | if (!(p->printers[i]->type & CUPS_PRINTER_CLASS)) | |
1133 | { | |
1134 | char ppdname[1024];/* PPD filename */ | |
1135 | ||
1136 | snprintf(ppdname, sizeof(ppdname), "%s/ppd/%s.ppd", | |
1137 | ServerRoot, p->printers[i]->name); | |
1138 | if (!access(ppdname, 0)) | |
1139 | { | |
1140 | p = p->printers[i]; | |
1141 | break; | |
1142 | } | |
1143 | } | |
1144 | } | |
1145 | ||
1146 | if (i >= p->num_printers) | |
1147 | p = NULL; | |
1148 | } | |
1149 | } | |
7cf5915e MS |
1150 | |
1151 | if (p) | |
1152 | snprintf(con->uri, sizeof(con->uri), "/icons/%s.png", p->name); | |
1153 | else | |
1154 | { | |
5ec1fd3d | 1155 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
7cf5915e MS |
1156 | { |
1157 | cupsdCloseClient(con); | |
1158 | return; | |
1159 | } | |
1160 | ||
1161 | break; | |
1162 | } | |
1163 | } | |
0268488e | 1164 | else if (!WebInterface) |
229681c1 MS |
1165 | { |
1166 | /* | |
1167 | * Web interface is disabled. Show an appropriate message... | |
1168 | */ | |
1169 | ||
5ec1fd3d | 1170 | if (!cupsdSendError(con, HTTP_STATUS_CUPS_WEBIF_DISABLED, CUPSD_AUTH_NONE)) |
229681c1 MS |
1171 | { |
1172 | cupsdCloseClient(con); | |
1173 | return; | |
1174 | } | |
1175 | ||
1176 | break; | |
1177 | } | |
0268488e MS |
1178 | |
1179 | if ((!strncmp(con->uri, "/admin", 6) && | |
1180 | strncmp(con->uri, "/admin/conf/", 12) && | |
1181 | strncmp(con->uri, "/admin/log/", 11)) || | |
1182 | !strncmp(con->uri, "/printers", 9) || | |
1183 | !strncmp(con->uri, "/classes", 8) || | |
1184 | !strncmp(con->uri, "/help", 5) || | |
1185 | !strncmp(con->uri, "/jobs", 5)) | |
ef416fc2 | 1186 | { |
1187 | /* | |
1188 | * Send CGI output... | |
1189 | */ | |
1190 | ||
1191 | if (!strncmp(con->uri, "/admin", 6)) | |
1192 | { | |
1193 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1194 | ServerBin); | |
1195 | ||
b423cd4c | 1196 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1197 | } |
1198 | else if (!strncmp(con->uri, "/printers", 9)) | |
1199 | { | |
1200 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1201 | ServerBin); | |
b423cd4c | 1202 | |
1203 | if (con->uri[9] && con->uri[10]) | |
1204 | cupsdSetString(&con->options, con->uri + 9); | |
1205 | else | |
1206 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1207 | } |
1208 | else if (!strncmp(con->uri, "/classes", 8)) | |
1209 | { | |
1210 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1211 | ServerBin); | |
b423cd4c | 1212 | |
1213 | if (con->uri[8] && con->uri[9]) | |
1214 | cupsdSetString(&con->options, con->uri + 8); | |
1215 | else | |
1216 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1217 | } |
1218 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1219 | { | |
1220 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1221 | ServerBin); | |
b423cd4c | 1222 | |
1223 | if (con->uri[5] && con->uri[6]) | |
1224 | cupsdSetString(&con->options, con->uri + 5); | |
1225 | else | |
1226 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1227 | } |
1228 | else | |
1229 | { | |
1230 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1231 | ServerBin); | |
ef416fc2 | 1232 | |
b423cd4c | 1233 | if (con->uri[5] && con->uri[6]) |
1234 | cupsdSetString(&con->options, con->uri + 5); | |
1235 | else | |
1236 | cupsdSetString(&con->options, NULL); | |
1237 | } | |
ef416fc2 | 1238 | |
1239 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1240 | { | |
5ec1fd3d | 1241 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1242 | { |
1243 | cupsdCloseClient(con); | |
1244 | return; | |
1245 | } | |
ef416fc2 | 1246 | } |
1247 | else | |
5ec1fd3d | 1248 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 1249 | |
d21dc0ed | 1250 | if (httpGetVersion(con->http) <= HTTP_VERSION_1_0) |
5ec1fd3d | 1251 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); |
ef416fc2 | 1252 | } |
1253 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1254 | (strchr(con->uri + 12, '/') || | |
1255 | strlen(con->uri) == 12)) || | |
1256 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1257 | (strchr(con->uri + 11, '/') || | |
1258 | strlen(con->uri) == 11))) | |
1259 | { | |
1260 | /* | |
bf3816c7 | 1261 | * GET can only be done to configuration files directly under |
ef416fc2 | 1262 | * /admin/conf... |
1263 | */ | |
1264 | ||
996acce8 | 1265 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
bf3816c7 MS |
1266 | "Request for subdirectory \"%s\"!", con->uri); |
1267 | ||
5ec1fd3d | 1268 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1269 | { |
1270 | cupsdCloseClient(con); | |
1271 | return; | |
1272 | } | |
ef416fc2 | 1273 | |
1274 | break; | |
1275 | } | |
1276 | else | |
1277 | { | |
1278 | /* | |
1279 | * Serve a file... | |
1280 | */ | |
1281 | ||
1282 | if ((filename = get_file(con, &filestats, buf, | |
1283 | sizeof(buf))) == NULL) | |
1284 | { | |
5ec1fd3d | 1285 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1286 | { |
1287 | cupsdCloseClient(con); | |
1288 | return; | |
1289 | } | |
ef416fc2 | 1290 | |
1291 | break; | |
1292 | } | |
1293 | ||
4400e98d | 1294 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1295 | |
dfc45c1b MS |
1296 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "filename=\"%s\", type=%s/%s", filename, type ? type->super : "", type ? type->type : ""); |
1297 | ||
e1d6a774 | 1298 | if (is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1299 | { |
1300 | /* | |
1301 | * Note: con->command and con->options were set by | |
e1d6a774 | 1302 | * is_cgi()... |
ef416fc2 | 1303 | */ |
1304 | ||
1305 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1306 | { | |
5ec1fd3d | 1307 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1308 | { |
1309 | cupsdCloseClient(con); | |
1310 | return; | |
1311 | } | |
ef416fc2 | 1312 | } |
1313 | else | |
5ec1fd3d | 1314 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 1315 | |
d21dc0ed | 1316 | if (httpGetVersion(con->http) <= HTTP_VERSION_1_0) |
5ec1fd3d | 1317 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); |
ef416fc2 | 1318 | break; |
1319 | } | |
1320 | ||
1321 | if (!check_if_modified(con, &filestats)) | |
1322 | { | |
5ec1fd3d | 1323 | if (!cupsdSendError(con, HTTP_STATUS_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1324 | { |
1325 | cupsdCloseClient(con); | |
1326 | return; | |
1327 | } | |
ef416fc2 | 1328 | } |
1329 | else | |
1330 | { | |
1331 | if (type == NULL) | |
5a9febac | 1332 | strlcpy(line, "text/plain", sizeof(line)); |
ef416fc2 | 1333 | else |
1334 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1335 | ||
5ec1fd3d | 1336 | if (!write_file(con, HTTP_STATUS_OK, filename, line, &filestats)) |
f7deaa1a | 1337 | { |
1338 | cupsdCloseClient(con); | |
1339 | return; | |
1340 | } | |
ef416fc2 | 1341 | } |
1342 | } | |
1343 | break; | |
1344 | ||
cb7f98ee | 1345 | case HTTP_STATE_POST_RECV : |
ef416fc2 | 1346 | /* |
1347 | * See if the POST request includes a Content-Length field, and if | |
1348 | * so check the length against any limits that are set... | |
1349 | */ | |
1350 | ||
5ec1fd3d | 1351 | if (httpGetField(con->http, HTTP_FIELD_CONTENT_LENGTH)[0] && |
ef416fc2 | 1352 | MaxRequestSize > 0 && |
d21dc0ed | 1353 | httpGetLength2(con->http) > MaxRequestSize) |
ef416fc2 | 1354 | { |
1355 | /* | |
1356 | * Request too large... | |
1357 | */ | |
1358 | ||
5ec1fd3d | 1359 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1360 | { |
1361 | cupsdCloseClient(con); | |
1362 | return; | |
1363 | } | |
ef416fc2 | 1364 | |
1365 | break; | |
1366 | } | |
d21dc0ed | 1367 | else if (httpGetLength2(con->http) < 0) |
ef416fc2 | 1368 | { |
1369 | /* | |
1370 | * Negative content lengths are invalid! | |
1371 | */ | |
1372 | ||
5ec1fd3d | 1373 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1374 | { |
1375 | cupsdCloseClient(con); | |
1376 | return; | |
1377 | } | |
ef416fc2 | 1378 | |
1379 | break; | |
1380 | } | |
1381 | ||
1382 | /* | |
1383 | * See what kind of POST request this is; for IPP requests the | |
1384 | * content-type field will be "application/ipp"... | |
1385 | */ | |
1386 | ||
5ec1fd3d | 1387 | if (!strcmp(httpGetField(con->http, HTTP_FIELD_CONTENT_TYPE), |
ef416fc2 | 1388 | "application/ipp")) |
1389 | con->request = ippNew(); | |
229681c1 MS |
1390 | else if (!WebInterface) |
1391 | { | |
1392 | /* | |
1393 | * Web interface is disabled. Show an appropriate message... | |
1394 | */ | |
1395 | ||
5ec1fd3d | 1396 | if (!cupsdSendError(con, HTTP_STATUS_CUPS_WEBIF_DISABLED, CUPSD_AUTH_NONE)) |
229681c1 MS |
1397 | { |
1398 | cupsdCloseClient(con); | |
1399 | return; | |
1400 | } | |
1401 | ||
1402 | break; | |
1403 | } | |
ef416fc2 | 1404 | else if ((!strncmp(con->uri, "/admin", 6) && |
1405 | strncmp(con->uri, "/admin/conf/", 12) && | |
1406 | strncmp(con->uri, "/admin/log/", 11)) || | |
1407 | !strncmp(con->uri, "/printers", 9) || | |
1408 | !strncmp(con->uri, "/classes", 8) || | |
1409 | !strncmp(con->uri, "/help", 5) || | |
1410 | !strncmp(con->uri, "/jobs", 5)) | |
1411 | { | |
1412 | /* | |
1413 | * CGI request... | |
1414 | */ | |
1415 | ||
1416 | if (!strncmp(con->uri, "/admin", 6)) | |
1417 | { | |
1418 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1419 | ServerBin); | |
1420 | ||
b423cd4c | 1421 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1422 | } |
1423 | else if (!strncmp(con->uri, "/printers", 9)) | |
1424 | { | |
1425 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1426 | ServerBin); | |
b423cd4c | 1427 | |
1428 | if (con->uri[9] && con->uri[10]) | |
1429 | cupsdSetString(&con->options, con->uri + 9); | |
1430 | else | |
1431 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1432 | } |
1433 | else if (!strncmp(con->uri, "/classes", 8)) | |
1434 | { | |
1435 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1436 | ServerBin); | |
b423cd4c | 1437 | |
1438 | if (con->uri[8] && con->uri[9]) | |
1439 | cupsdSetString(&con->options, con->uri + 8); | |
1440 | else | |
1441 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1442 | } |
1443 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1444 | { | |
1445 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1446 | ServerBin); | |
b423cd4c | 1447 | |
1448 | if (con->uri[5] && con->uri[6]) | |
1449 | cupsdSetString(&con->options, con->uri + 5); | |
1450 | else | |
1451 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1452 | } |
1453 | else | |
1454 | { | |
1455 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1456 | ServerBin); | |
ef416fc2 | 1457 | |
b423cd4c | 1458 | if (con->uri[5] && con->uri[6]) |
1459 | cupsdSetString(&con->options, con->uri + 5); | |
1460 | else | |
1461 | cupsdSetString(&con->options, NULL); | |
1462 | } | |
ef416fc2 | 1463 | |
d21dc0ed | 1464 | if (httpGetVersion(con->http) <= HTTP_VERSION_1_0) |
5ec1fd3d | 1465 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); |
ef416fc2 | 1466 | } |
1467 | else | |
1468 | { | |
1469 | /* | |
1470 | * POST to a file... | |
1471 | */ | |
1472 | ||
1473 | if ((filename = get_file(con, &filestats, buf, | |
1474 | sizeof(buf))) == NULL) | |
1475 | { | |
5ec1fd3d | 1476 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1477 | { |
1478 | cupsdCloseClient(con); | |
1479 | return; | |
1480 | } | |
ef416fc2 | 1481 | |
1482 | break; | |
1483 | } | |
1484 | ||
4400e98d | 1485 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1486 | |
e1d6a774 | 1487 | if (!is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1488 | { |
1489 | /* | |
1490 | * Only POST to CGI's... | |
1491 | */ | |
1492 | ||
5ec1fd3d | 1493 | if (!cupsdSendError(con, HTTP_STATUS_UNAUTHORIZED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1494 | { |
1495 | cupsdCloseClient(con); | |
1496 | return; | |
1497 | } | |
ef416fc2 | 1498 | } |
1499 | } | |
1500 | break; | |
1501 | ||
cb7f98ee | 1502 | case HTTP_STATE_PUT_RECV : |
ef416fc2 | 1503 | /* |
1504 | * Validate the resource name... | |
1505 | */ | |
1506 | ||
c41769ff | 1507 | if (strcmp(con->uri, "/admin/conf/cupsd.conf")) |
ef416fc2 | 1508 | { |
1509 | /* | |
c41769ff | 1510 | * PUT can only be done to the cupsd.conf file... |
ef416fc2 | 1511 | */ |
1512 | ||
996acce8 MS |
1513 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1514 | "Disallowed PUT request for \"%s\".", con->uri); | |
bf3816c7 | 1515 | |
5ec1fd3d | 1516 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1517 | { |
1518 | cupsdCloseClient(con); | |
1519 | return; | |
1520 | } | |
ef416fc2 | 1521 | |
1522 | break; | |
1523 | } | |
1524 | ||
1525 | /* | |
1526 | * See if the PUT request includes a Content-Length field, and if | |
1527 | * so check the length against any limits that are set... | |
1528 | */ | |
1529 | ||
5ec1fd3d | 1530 | if (httpGetField(con->http, HTTP_FIELD_CONTENT_LENGTH)[0] && |
ef416fc2 | 1531 | MaxRequestSize > 0 && |
d21dc0ed | 1532 | httpGetLength2(con->http) > MaxRequestSize) |
ef416fc2 | 1533 | { |
1534 | /* | |
1535 | * Request too large... | |
1536 | */ | |
1537 | ||
5ec1fd3d | 1538 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1539 | { |
1540 | cupsdCloseClient(con); | |
1541 | return; | |
1542 | } | |
ef416fc2 | 1543 | |
1544 | break; | |
1545 | } | |
d21dc0ed | 1546 | else if (httpGetLength2(con->http) < 0) |
ef416fc2 | 1547 | { |
1548 | /* | |
1549 | * Negative content lengths are invalid! | |
1550 | */ | |
1551 | ||
5ec1fd3d | 1552 | if (!cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1553 | { |
1554 | cupsdCloseClient(con); | |
1555 | return; | |
1556 | } | |
ef416fc2 | 1557 | |
1558 | break; | |
1559 | } | |
1560 | ||
1561 | /* | |
1562 | * Open a temporary file to hold the request... | |
1563 | */ | |
1564 | ||
1565 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, | |
1566 | request_id ++); | |
1567 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); | |
1568 | ||
ef416fc2 | 1569 | if (con->file < 0) |
1570 | { | |
996acce8 MS |
1571 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1572 | "Unable to create request file \"%s\": %s", | |
1573 | con->filename, strerror(errno)); | |
a4924f6c | 1574 | |
5ec1fd3d | 1575 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1576 | { |
1577 | cupsdCloseClient(con); | |
1578 | return; | |
1579 | } | |
ef416fc2 | 1580 | } |
1581 | ||
1582 | fchmod(con->file, 0640); | |
1583 | fchown(con->file, RunUser, Group); | |
1584 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1585 | break; | |
1586 | ||
cb7f98ee MS |
1587 | case HTTP_STATE_DELETE : |
1588 | case HTTP_STATE_TRACE : | |
5ec1fd3d | 1589 | cupsdSendError(con, HTTP_STATUS_NOT_IMPLEMENTED, CUPSD_AUTH_NONE); |
f7deaa1a | 1590 | cupsdCloseClient(con); |
1591 | return; | |
ef416fc2 | 1592 | |
cb7f98ee | 1593 | case HTTP_STATE_HEAD : |
ef416fc2 | 1594 | if (!strncmp(con->uri, "/printers/", 10) && |
1595 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1596 | { | |
1597 | /* | |
1598 | * Send PPD file - get the real printer name since printer | |
1599 | * names are not case sensitive but filenames can be... | |
1600 | */ | |
1601 | ||
1602 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1603 | ||
1604 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1605 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1606 | else | |
1607 | { | |
5ec1fd3d | 1608 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1609 | { |
1610 | cupsdCloseClient(con); | |
1611 | return; | |
1612 | } | |
ef416fc2 | 1613 | |
e200616a | 1614 | cupsdLogRequest(con, HTTP_STATUS_NOT_FOUND); |
ef416fc2 | 1615 | break; |
1616 | } | |
1617 | } | |
229681c1 MS |
1618 | else if (!strncmp(con->uri, "/printers/", 10) && |
1619 | !strcmp(con->uri + strlen(con->uri) - 4, ".png")) | |
1620 | { | |
1621 | /* | |
1622 | * Send PNG file - get the real printer name since printer | |
1623 | * names are not case sensitive but filenames can be... | |
1624 | */ | |
1625 | ||
1626 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1627 | ||
1628 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1629 | snprintf(con->uri, sizeof(con->uri), "/icons/%s.png", p->name); | |
1630 | else | |
1631 | { | |
5ec1fd3d | 1632 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
229681c1 MS |
1633 | { |
1634 | cupsdCloseClient(con); | |
1635 | return; | |
1636 | } | |
1637 | ||
e200616a | 1638 | cupsdLogRequest(con, HTTP_STATUS_NOT_FOUND); |
229681c1 MS |
1639 | break; |
1640 | } | |
1641 | } | |
1642 | else if (!WebInterface) | |
1643 | { | |
a73ca01e MS |
1644 | httpClearFields(con->http); |
1645 | ||
5ec1fd3d | 1646 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, NULL, CUPSD_AUTH_NONE)) |
229681c1 MS |
1647 | { |
1648 | cupsdCloseClient(con); | |
1649 | return; | |
1650 | } | |
1651 | ||
e200616a | 1652 | cupsdLogRequest(con, HTTP_STATUS_OK); |
229681c1 MS |
1653 | break; |
1654 | } | |
ef416fc2 | 1655 | |
1656 | if ((!strncmp(con->uri, "/admin", 6) && | |
1657 | strncmp(con->uri, "/admin/conf/", 12) && | |
1658 | strncmp(con->uri, "/admin/log/", 11)) || | |
1659 | !strncmp(con->uri, "/printers", 9) || | |
1660 | !strncmp(con->uri, "/classes", 8) || | |
1661 | !strncmp(con->uri, "/help", 5) || | |
1662 | !strncmp(con->uri, "/jobs", 5)) | |
1663 | { | |
1664 | /* | |
1665 | * CGI output... | |
1666 | */ | |
1667 | ||
a73ca01e MS |
1668 | httpClearFields(con->http); |
1669 | ||
5ec1fd3d | 1670 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, "text/html", CUPSD_AUTH_NONE)) |
f7deaa1a | 1671 | { |
1672 | cupsdCloseClient(con); | |
1673 | return; | |
1674 | } | |
ef416fc2 | 1675 | |
5ec1fd3d | 1676 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 1677 | } |
1678 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1679 | (strchr(con->uri + 12, '/') || | |
1680 | strlen(con->uri) == 12)) || | |
1681 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1682 | (strchr(con->uri + 11, '/') || | |
1683 | strlen(con->uri) == 11))) | |
1684 | { | |
1685 | /* | |
1686 | * HEAD can only be done to configuration files under | |
1687 | * /admin/conf... | |
1688 | */ | |
1689 | ||
996acce8 MS |
1690 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1691 | "Request for subdirectory \"%s\".", con->uri); | |
bf3816c7 | 1692 | |
5ec1fd3d | 1693 | if (!cupsdSendError(con, HTTP_STATUS_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1694 | { |
1695 | cupsdCloseClient(con); | |
1696 | return; | |
1697 | } | |
ef416fc2 | 1698 | |
e200616a | 1699 | cupsdLogRequest(con, HTTP_STATUS_FORBIDDEN); |
ef416fc2 | 1700 | break; |
1701 | } | |
1702 | else if ((filename = get_file(con, &filestats, buf, | |
1703 | sizeof(buf))) == NULL) | |
1704 | { | |
a73ca01e MS |
1705 | httpClearFields(con->http); |
1706 | ||
5ec1fd3d | 1707 | if (!cupsdSendHeader(con, HTTP_STATUS_NOT_FOUND, "text/html", |
f11a948a | 1708 | CUPSD_AUTH_NONE)) |
f7deaa1a | 1709 | { |
1710 | cupsdCloseClient(con); | |
1711 | return; | |
1712 | } | |
ef416fc2 | 1713 | |
5ec1fd3d | 1714 | cupsdLogRequest(con, HTTP_STATUS_NOT_FOUND); |
ef416fc2 | 1715 | } |
1716 | else if (!check_if_modified(con, &filestats)) | |
1717 | { | |
5ec1fd3d | 1718 | if (!cupsdSendError(con, HTTP_STATUS_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1719 | { |
1720 | cupsdCloseClient(con); | |
1721 | return; | |
1722 | } | |
ef416fc2 | 1723 | |
5ec1fd3d | 1724 | cupsdLogRequest(con, HTTP_STATUS_NOT_MODIFIED); |
ef416fc2 | 1725 | } |
1726 | else | |
1727 | { | |
1728 | /* | |
1729 | * Serve a file... | |
1730 | */ | |
1731 | ||
4400e98d | 1732 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1733 | if (type == NULL) |
5a9febac | 1734 | strlcpy(line, "text/plain", sizeof(line)); |
ef416fc2 | 1735 | else |
1736 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1737 | ||
a73ca01e MS |
1738 | httpClearFields(con->http); |
1739 | ||
e200616a MS |
1740 | httpSetField(con->http, HTTP_FIELD_LAST_MODIFIED, |
1741 | httpGetDateString(filestats.st_mtime)); | |
7e86f2f6 | 1742 | httpSetLength(con->http, (size_t)filestats.st_size); |
ef416fc2 | 1743 | |
e200616a | 1744 | if (!cupsdSendHeader(con, HTTP_STATUS_OK, line, CUPSD_AUTH_NONE)) |
f7deaa1a | 1745 | { |
1746 | cupsdCloseClient(con); | |
1747 | return; | |
1748 | } | |
ef416fc2 | 1749 | |
5ec1fd3d | 1750 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 1751 | } |
ef416fc2 | 1752 | break; |
1753 | ||
1754 | default : | |
1755 | break; /* Anti-compiler-warning-code */ | |
1756 | } | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | /* | |
1761 | * Handle any incoming data... | |
1762 | */ | |
1763 | ||
5ec1fd3d | 1764 | switch (httpGetState(con->http)) |
ef416fc2 | 1765 | { |
cb7f98ee | 1766 | case HTTP_STATE_PUT_RECV : |
f7deaa1a | 1767 | do |
ef416fc2 | 1768 | { |
996acce8 | 1769 | if ((bytes = httpRead2(con->http, line, sizeof(line))) < 0) |
f7deaa1a | 1770 | { |
5ec1fd3d | 1771 | if (httpError(con->http) && httpError(con->http) != EPIPE) |
996acce8 MS |
1772 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1773 | "HTTP_STATE_PUT_RECV Closing for error %d (%s)", | |
5ec1fd3d | 1774 | httpError(con->http), strerror(httpError(con->http))); |
f11a948a | 1775 | else |
996acce8 MS |
1776 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1777 | "HTTP_STATE_PUT_RECV Closing on EOF."); | |
f11a948a | 1778 | |
f7deaa1a | 1779 | cupsdCloseClient(con); |
1780 | return; | |
1781 | } | |
1782 | else if (bytes > 0) | |
1783 | { | |
1784 | con->bytes += bytes; | |
ef416fc2 | 1785 | |
7e86f2f6 | 1786 | if (write(con->file, line, (size_t)bytes) < bytes) |
f7deaa1a | 1787 | { |
996acce8 MS |
1788 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1789 | "Unable to write %d bytes to \"%s\": %s", bytes, | |
1790 | con->filename, strerror(errno)); | |
ef416fc2 | 1791 | |
f7deaa1a | 1792 | close(con->file); |
1793 | con->file = -1; | |
1794 | unlink(con->filename); | |
1795 | cupsdClearString(&con->filename); | |
ef416fc2 | 1796 | |
5ec1fd3d | 1797 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1798 | { |
1799 | cupsdCloseClient(con); | |
1800 | return; | |
1801 | } | |
1802 | } | |
ef416fc2 | 1803 | } |
f7deaa1a | 1804 | } |
5ec1fd3d | 1805 | while (httpGetState(con->http) == HTTP_STATE_PUT_RECV && httpGetReady(con->http)); |
ef416fc2 | 1806 | |
5ec1fd3d | 1807 | if (httpGetState(con->http) == HTTP_STATE_STATUS) |
ef416fc2 | 1808 | { |
1809 | /* | |
1810 | * End of file, see how big it is... | |
1811 | */ | |
1812 | ||
1813 | fstat(con->file, &filestats); | |
1814 | ||
ef416fc2 | 1815 | close(con->file); |
1816 | con->file = -1; | |
1817 | ||
1818 | if (filestats.st_size > MaxRequestSize && | |
1819 | MaxRequestSize > 0) | |
1820 | { | |
1821 | /* | |
1822 | * Request is too big; remove it and send an error... | |
1823 | */ | |
1824 | ||
ef416fc2 | 1825 | unlink(con->filename); |
1826 | cupsdClearString(&con->filename); | |
1827 | ||
5ec1fd3d | 1828 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1829 | { |
1830 | cupsdCloseClient(con); | |
1831 | return; | |
1832 | } | |
ef416fc2 | 1833 | } |
1834 | ||
1835 | /* | |
1836 | * Install the configuration file... | |
1837 | */ | |
1838 | ||
c41769ff | 1839 | status = install_cupsd_conf(con); |
ef416fc2 | 1840 | |
1841 | /* | |
1842 | * Return the status to the client... | |
1843 | */ | |
1844 | ||
5bd77a73 | 1845 | if (!cupsdSendError(con, status, CUPSD_AUTH_NONE)) |
f7deaa1a | 1846 | { |
1847 | cupsdCloseClient(con); | |
1848 | return; | |
1849 | } | |
ef416fc2 | 1850 | } |
1851 | break; | |
1852 | ||
cb7f98ee | 1853 | case HTTP_STATE_POST_RECV : |
f7deaa1a | 1854 | do |
ef416fc2 | 1855 | { |
f11a948a | 1856 | if (con->request && con->file < 0) |
ef416fc2 | 1857 | { |
f7deaa1a | 1858 | /* |
1859 | * Grab any request data from the connection... | |
1860 | */ | |
ef416fc2 | 1861 | |
175bc798 MS |
1862 | if (!httpWait(con->http, 0)) |
1863 | return; | |
1864 | ||
5ec1fd3d | 1865 | if ((ipp_state = ippRead(con->http, con->request)) == IPP_STATE_ERROR) |
ef416fc2 | 1866 | { |
996acce8 MS |
1867 | cupsdLogClient(con, CUPSD_LOG_ERROR, "IPP read error: %s", |
1868 | cupsLastErrorString()); | |
f7deaa1a | 1869 | |
5ec1fd3d | 1870 | cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 1871 | cupsdCloseClient(con); |
1872 | return; | |
ef416fc2 | 1873 | } |
5ec1fd3d | 1874 | else if (ipp_state != IPP_STATE_DATA) |
f7deaa1a | 1875 | { |
5ec1fd3d | 1876 | if (httpGetState(con->http) == HTTP_STATE_POST_SEND) |
f7deaa1a | 1877 | { |
5ec1fd3d | 1878 | cupsdSendError(con, HTTP_STATUS_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 1879 | cupsdCloseClient(con); |
1880 | return; | |
1881 | } | |
ef416fc2 | 1882 | |
5ec1fd3d | 1883 | if (httpGetReady(con->http)) |
6961465f | 1884 | continue; |
f7deaa1a | 1885 | break; |
1886 | } | |
1887 | else | |
f11a948a | 1888 | { |
996acce8 MS |
1889 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "%d.%d %s %d", |
1890 | con->request->request.op.version[0], | |
f11a948a MS |
1891 | con->request->request.op.version[1], |
1892 | ippOpString(con->request->request.op.operation_id), | |
1893 | con->request->request.op.request_id); | |
f7deaa1a | 1894 | con->bytes += ippLength(con->request); |
f11a948a | 1895 | } |
f7deaa1a | 1896 | } |
ef416fc2 | 1897 | |
5ec1fd3d | 1898 | if (con->file < 0 && httpGetState(con->http) != HTTP_STATE_POST_SEND) |
f7deaa1a | 1899 | { |
1900 | /* | |
1901 | * Create a file as needed for the request data... | |
1902 | */ | |
ef416fc2 | 1903 | |
f11a948a MS |
1904 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, |
1905 | request_id ++); | |
f7deaa1a | 1906 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); |
ef416fc2 | 1907 | |
f7deaa1a | 1908 | if (con->file < 0) |
1909 | { | |
996acce8 MS |
1910 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1911 | "Unable to create request file \"%s\": %s", | |
1912 | con->filename, strerror(errno)); | |
a4924f6c | 1913 | |
5ec1fd3d | 1914 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1915 | { |
1916 | cupsdCloseClient(con); | |
1917 | return; | |
1918 | } | |
1919 | } | |
ef416fc2 | 1920 | |
f7deaa1a | 1921 | fchmod(con->file, 0640); |
1922 | fchown(con->file, RunUser, Group); | |
1923 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1924 | } | |
ef416fc2 | 1925 | |
5ec1fd3d | 1926 | if (httpGetState(con->http) != HTTP_STATE_POST_SEND) |
ef416fc2 | 1927 | { |
996acce8 | 1928 | if (!httpWait(con->http, 0)) |
cb7f98ee | 1929 | return; |
996acce8 | 1930 | else if ((bytes = httpRead2(con->http, line, sizeof(line))) < 0) |
f7deaa1a | 1931 | { |
5ec1fd3d | 1932 | if (httpError(con->http) && httpError(con->http) != EPIPE) |
996acce8 MS |
1933 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1934 | "HTTP_STATE_POST_SEND Closing for error %d (%s)", | |
5ec1fd3d | 1935 | httpError(con->http), strerror(httpError(con->http))); |
f11a948a | 1936 | else |
996acce8 MS |
1937 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1938 | "HTTP_STATE_POST_SEND Closing on EOF."); | |
f11a948a | 1939 | |
f7deaa1a | 1940 | cupsdCloseClient(con); |
1941 | return; | |
1942 | } | |
1943 | else if (bytes > 0) | |
1944 | { | |
1945 | con->bytes += bytes; | |
ef416fc2 | 1946 | |
7e86f2f6 | 1947 | if (write(con->file, line, (size_t)bytes) < bytes) |
f7deaa1a | 1948 | { |
996acce8 MS |
1949 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
1950 | "Unable to write %d bytes to \"%s\": %s", | |
1951 | bytes, con->filename, strerror(errno)); | |
ef416fc2 | 1952 | |
f7deaa1a | 1953 | close(con->file); |
1954 | con->file = -1; | |
1955 | unlink(con->filename); | |
1956 | cupsdClearString(&con->filename); | |
ef416fc2 | 1957 | |
5ec1fd3d | 1958 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, |
f11a948a | 1959 | CUPSD_AUTH_NONE)) |
f7deaa1a | 1960 | { |
1961 | cupsdCloseClient(con); | |
1962 | return; | |
1963 | } | |
1964 | } | |
1965 | } | |
5ec1fd3d | 1966 | else if (httpGetState(con->http) == HTTP_STATE_POST_RECV) |
f7deaa1a | 1967 | return; |
5ec1fd3d | 1968 | else if (httpGetState(con->http) != HTTP_STATE_POST_SEND) |
f7deaa1a | 1969 | { |
996acce8 MS |
1970 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
1971 | "Closing on unexpected state %s.", | |
5ec1fd3d | 1972 | httpStateString(httpGetState(con->http))); |
f7deaa1a | 1973 | cupsdCloseClient(con); |
1974 | return; | |
ef416fc2 | 1975 | } |
1976 | } | |
f7deaa1a | 1977 | } |
5ec1fd3d | 1978 | while (httpGetState(con->http) == HTTP_STATE_POST_RECV && httpGetReady(con->http)); |
ef416fc2 | 1979 | |
5ec1fd3d | 1980 | if (httpGetState(con->http) == HTTP_STATE_POST_SEND) |
ef416fc2 | 1981 | { |
6c2b2b19 MS |
1982 | /* |
1983 | * Don't listen for activity until we decide to do something with this... | |
1984 | */ | |
1985 | ||
1986 | cupsdAddSelect(httpGetFd(con->http), NULL, NULL, con); | |
1987 | ||
ef416fc2 | 1988 | if (con->file >= 0) |
1989 | { | |
1990 | fstat(con->file, &filestats); | |
1991 | ||
ef416fc2 | 1992 | close(con->file); |
1993 | con->file = -1; | |
1994 | ||
1995 | if (filestats.st_size > MaxRequestSize && | |
1996 | MaxRequestSize > 0) | |
1997 | { | |
1998 | /* | |
1999 | * Request is too big; remove it and send an error... | |
2000 | */ | |
2001 | ||
ef416fc2 | 2002 | unlink(con->filename); |
2003 | cupsdClearString(&con->filename); | |
2004 | ||
2005 | if (con->request) | |
2006 | { | |
2007 | /* | |
2008 | * Delete any IPP request data... | |
2009 | */ | |
2010 | ||
2011 | ippDelete(con->request); | |
2012 | con->request = NULL; | |
2013 | } | |
2014 | ||
5ec1fd3d | 2015 | if (!cupsdSendError(con, HTTP_STATUS_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2016 | { |
2017 | cupsdCloseClient(con); | |
2018 | return; | |
2019 | } | |
ef416fc2 | 2020 | } |
f8b3a85b MS |
2021 | else if (filestats.st_size == 0) |
2022 | { | |
2023 | /* | |
2024 | * Don't allow empty file... | |
2025 | */ | |
2026 | ||
2027 | unlink(con->filename); | |
2028 | cupsdClearString(&con->filename); | |
2029 | } | |
ef416fc2 | 2030 | |
2031 | if (con->command) | |
2032 | { | |
2033 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
2034 | { | |
5ec1fd3d | 2035 | if (!cupsdSendError(con, HTTP_STATUS_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 2036 | { |
2037 | cupsdCloseClient(con); | |
2038 | return; | |
2039 | } | |
ef416fc2 | 2040 | } |
2041 | else | |
5ec1fd3d | 2042 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 2043 | } |
2044 | } | |
2045 | ||
2046 | if (con->request) | |
f7deaa1a | 2047 | { |
2048 | cupsdProcessIPPRequest(con); | |
bc44d920 | 2049 | |
2050 | if (con->filename) | |
2051 | { | |
bc44d920 | 2052 | unlink(con->filename); |
2053 | cupsdClearString(&con->filename); | |
2054 | } | |
2055 | ||
f7deaa1a | 2056 | return; |
2057 | } | |
ef416fc2 | 2058 | } |
2059 | break; | |
2060 | ||
2061 | default : | |
2062 | break; /* Anti-compiler-warning-code */ | |
2063 | } | |
2064 | ||
5ec1fd3d | 2065 | if (httpGetState(con->http) == HTTP_STATE_WAITING) |
3dfe78b3 | 2066 | { |
5ec1fd3d | 2067 | if (!httpGetKeepAlive(con->http)) |
f11a948a | 2068 | { |
996acce8 MS |
2069 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2070 | "Closing because Keep-Alive is disabled."); | |
3dfe78b3 | 2071 | cupsdCloseClient(con); |
f11a948a | 2072 | } |
3dfe78b3 MS |
2073 | else |
2074 | { | |
2075 | cupsArrayRemove(ActiveClients, con); | |
2076 | cupsdSetBusyState(); | |
2077 | } | |
2078 | } | |
ef416fc2 | 2079 | } |
2080 | ||
2081 | ||
2082 | /* | |
2083 | * 'cupsdSendCommand()' - Send output from a command via HTTP. | |
2084 | */ | |
2085 | ||
2086 | int /* O - 1 on success, 0 on failure */ | |
2087 | cupsdSendCommand( | |
2088 | cupsd_client_t *con, /* I - Client connection */ | |
2089 | char *command, /* I - Command to run */ | |
2090 | char *options, /* I - Command-line options */ | |
2091 | int root) /* I - Run as root? */ | |
2092 | { | |
2093 | int fd; /* Standard input file descriptor */ | |
2094 | ||
2095 | ||
2096 | if (con->filename) | |
ed486911 | 2097 | { |
ef416fc2 | 2098 | fd = open(con->filename, O_RDONLY); |
ef416fc2 | 2099 | |
ed486911 | 2100 | if (fd < 0) |
2101 | { | |
996acce8 MS |
2102 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
2103 | "Unable to open \"%s\" for reading: %s", | |
2104 | con->filename ? con->filename : "/dev/null", | |
2105 | strerror(errno)); | |
ed486911 | 2106 | return (0); |
2107 | } | |
ef416fc2 | 2108 | |
ed486911 | 2109 | fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); |
2110 | } | |
2111 | else | |
2112 | fd = -1; | |
ef416fc2 | 2113 | |
e200616a MS |
2114 | con->pipe_pid = pipe_command(con, fd, &(con->file), command, options, root); |
2115 | con->pipe_status = HTTP_STATUS_OK; | |
ef416fc2 | 2116 | |
a73ca01e MS |
2117 | httpClearFields(con->http); |
2118 | ||
ed486911 | 2119 | if (fd >= 0) |
2120 | close(fd); | |
ef416fc2 | 2121 | |
996acce8 MS |
2122 | cupsdLogClient(con, CUPSD_LOG_INFO, "Started \"%s\" (pid=%d, file=%d)", |
2123 | command, con->pipe_pid, con->file); | |
ef416fc2 | 2124 | |
2125 | if (con->pipe_pid == 0) | |
2126 | return (0); | |
2127 | ||
2128 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
2129 | ||
f899b121 | 2130 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
ef416fc2 | 2131 | |
996acce8 | 2132 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for CGI data."); |
1bc82dd9 | 2133 | |
ef416fc2 | 2134 | con->sent_header = 0; |
2135 | con->file_ready = 0; | |
2136 | con->got_fields = 0; | |
68b10830 | 2137 | con->header_used = 0; |
ef416fc2 | 2138 | |
2139 | return (1); | |
2140 | } | |
2141 | ||
2142 | ||
2143 | /* | |
2144 | * 'cupsdSendError()' - Send an error message via HTTP. | |
2145 | */ | |
2146 | ||
2147 | int /* O - 1 if successful, 0 otherwise */ | |
2148 | cupsdSendError(cupsd_client_t *con, /* I - Connection */ | |
f899b121 | 2149 | http_status_t code, /* I - Error code */ |
2150 | int auth_type)/* I - Authentication type */ | |
ef416fc2 | 2151 | { |
996acce8 MS |
2152 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "cupsdSendError code=%d, auth_type=%d", |
2153 | code, auth_type); | |
b9faaae1 | 2154 | |
4744bd90 | 2155 | #ifdef HAVE_SSL |
2156 | /* | |
2157 | * Force client to upgrade for authentication if that is how the | |
2158 | * server is configured... | |
2159 | */ | |
2160 | ||
5ec1fd3d MS |
2161 | if (code == HTTP_STATUS_UNAUTHORIZED && |
2162 | DefaultEncryption == HTTP_ENCRYPTION_REQUIRED && | |
2163 | _cups_strcasecmp(httpGetHostname(con->http, NULL, 0), "localhost") && | |
2164 | !httpIsEncrypted(con->http)) | |
4744bd90 | 2165 | { |
5ec1fd3d | 2166 | code = HTTP_STATUS_UPGRADE_REQUIRED; |
4744bd90 | 2167 | } |
2168 | #endif /* HAVE_SSL */ | |
2169 | ||
ef416fc2 | 2170 | /* |
2171 | * Put the request in the access_log file... | |
2172 | */ | |
2173 | ||
2174 | cupsdLogRequest(con, code); | |
2175 | ||
ef416fc2 | 2176 | /* |
2177 | * To work around bugs in some proxies, don't use Keep-Alive for some | |
2178 | * error messages... | |
f7deaa1a | 2179 | * |
2180 | * Kerberos authentication doesn't work without Keep-Alive, so | |
2181 | * never disable it in that case. | |
ef416fc2 | 2182 | */ |
2183 | ||
a73ca01e MS |
2184 | httpClearFields(con->http); |
2185 | ||
5ec1fd3d MS |
2186 | if (code >= HTTP_STATUS_BAD_REQUEST && con->type != CUPSD_AUTH_NEGOTIATE) |
2187 | httpSetKeepAlive(con->http, HTTP_KEEPALIVE_OFF); | |
ef416fc2 | 2188 | |
d21dc0ed | 2189 | if (httpGetVersion(con->http) >= HTTP_VERSION_1_1 && |
5ec1fd3d | 2190 | httpGetKeepAlive(con->http) == HTTP_KEEPALIVE_OFF) |
e200616a | 2191 | httpSetField(con->http, HTTP_FIELD_CONNECTION, "close"); |
ef416fc2 | 2192 | |
5ec1fd3d | 2193 | if (code >= HTTP_STATUS_BAD_REQUEST) |
ef416fc2 | 2194 | { |
2195 | /* | |
2196 | * Send a human-readable error message. | |
2197 | */ | |
2198 | ||
80ca4592 | 2199 | char message[4096], /* Message for user */ |
2200 | urltext[1024], /* URL redirection text */ | |
2201 | redirect[1024]; /* Redirection link */ | |
ef416fc2 | 2202 | const char *text; /* Status-specific text */ |
2203 | ||
80ca4592 | 2204 | |
2205 | redirect[0] = '\0'; | |
2206 | ||
5ec1fd3d | 2207 | if (code == HTTP_STATUS_UNAUTHORIZED) |
ef416fc2 | 2208 | text = _cupsLangString(con->language, |
2209 | _("Enter your username and password or the " | |
2210 | "root username and password to access this " | |
f7deaa1a | 2211 | "page. If you are using Kerberos authentication, " |
2212 | "make sure you have a valid Kerberos ticket.")); | |
5ec1fd3d | 2213 | else if (code == HTTP_STATUS_UPGRADE_REQUIRED) |
80ca4592 | 2214 | { |
2215 | text = urltext; | |
2216 | ||
2217 | snprintf(urltext, sizeof(urltext), | |
2218 | _cupsLangString(con->language, | |
2219 | _("You must access this page using the URL " | |
2220 | "<A HREF=\"https://%s:%d%s\">" | |
2221 | "https://%s:%d%s</A>.")), | |
2222 | con->servername, con->serverport, con->uri, | |
2223 | con->servername, con->serverport, con->uri); | |
2224 | ||
2225 | snprintf(redirect, sizeof(redirect), | |
b86bc4cf | 2226 | "<META HTTP-EQUIV=\"Refresh\" " |
2227 | "CONTENT=\"3;URL=https://%s:%d%s\">\n", | |
80ca4592 | 2228 | con->servername, con->serverport, con->uri); |
2229 | } | |
5ec1fd3d | 2230 | else if (code == HTTP_STATUS_CUPS_WEBIF_DISABLED) |
229681c1 MS |
2231 | text = _cupsLangString(con->language, |
2232 | _("The web interface is currently disabled. Run " | |
2233 | "\"cupsctl WebInterface=yes\" to enable it.")); | |
ef416fc2 | 2234 | else |
2235 | text = ""; | |
2236 | ||
2237 | snprintf(message, sizeof(message), | |
745129be MS |
2238 | "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" " |
2239 | "\"http://www.w3.org/TR/html4/loose.dtd\">\n" | |
ef416fc2 | 2240 | "<HTML>\n" |
2241 | "<HEAD>\n" | |
2242 | "\t<META HTTP-EQUIV=\"Content-Type\" " | |
2243 | "CONTENT=\"text/html; charset=utf-8\">\n" | |
229681c1 | 2244 | "\t<TITLE>%s - " CUPS_SVERSION "</TITLE>\n" |
ef416fc2 | 2245 | "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" " |
2246 | "HREF=\"/cups.css\">\n" | |
80ca4592 | 2247 | "%s" |
ef416fc2 | 2248 | "</HEAD>\n" |
2249 | "<BODY>\n" | |
229681c1 | 2250 | "<H1>%s</H1>\n" |
ef416fc2 | 2251 | "<P>%s</P>\n" |
2252 | "</BODY>\n" | |
2253 | "</HTML>\n", | |
41e6c1f1 MS |
2254 | _httpStatus(con->language, code), redirect, |
2255 | _httpStatus(con->language, code), text); | |
ef416fc2 | 2256 | |
43dcaf3b MS |
2257 | /* |
2258 | * Send an error message back to the client. If the error code is a | |
2259 | * 400 or 500 series, make sure the message contains some text, too! | |
2260 | */ | |
2261 | ||
2262 | size_t length = strlen(message); /* Length of message */ | |
e200616a | 2263 | |
43dcaf3b | 2264 | httpSetLength(con->http, length); |
e200616a MS |
2265 | |
2266 | if (!cupsdSendHeader(con, code, "text/html", auth_type)) | |
ef416fc2 | 2267 | return (0); |
ebeb3268 | 2268 | |
43dcaf3b MS |
2269 | if (httpWrite2(con->http, message, length) < 0) |
2270 | return (0); | |
2271 | ||
2272 | if (httpFlushWrite(con->http) < 0) | |
ef416fc2 | 2273 | return (0); |
2274 | } | |
e200616a MS |
2275 | else |
2276 | { | |
2277 | httpSetField(con->http, HTTP_FIELD_CONTENT_LENGTH, "0"); | |
a469f8a5 | 2278 | |
e200616a MS |
2279 | if (!cupsdSendHeader(con, code, NULL, auth_type)) |
2280 | return (0); | |
2281 | } | |
ef416fc2 | 2282 | |
2283 | return (1); | |
2284 | } | |
2285 | ||
2286 | ||
ef416fc2 | 2287 | /* |
2288 | * 'cupsdSendHeader()' - Send an HTTP request. | |
2289 | */ | |
2290 | ||
2291 | int /* O - 1 on success, 0 on failure */ | |
f899b121 | 2292 | cupsdSendHeader( |
2293 | cupsd_client_t *con, /* I - Client to send to */ | |
2294 | http_status_t code, /* I - HTTP status code */ | |
2295 | char *type, /* I - MIME type of document */ | |
2296 | int auth_type) /* I - Type of authentication */ | |
ef416fc2 | 2297 | { |
5a738aea | 2298 | char auth_str[1024]; /* Authorization string */ |
f7deaa1a | 2299 | |
2300 | ||
f3211b6d MS |
2301 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "cupsdSendHeader: code=%d, type=\"%s\", auth_type=%d", code, type, auth_type); |
2302 | ||
4744bd90 | 2303 | /* |
2304 | * Send the HTTP status header... | |
2305 | */ | |
2306 | ||
a73ca01e | 2307 | if (code == HTTP_STATUS_CUPS_WEBIF_DISABLED) |
229681c1 MS |
2308 | { |
2309 | /* | |
2310 | * Treat our special "web interface is disabled" status as "200 OK" for web | |
2311 | * browsers. | |
2312 | */ | |
2313 | ||
5ec1fd3d | 2314 | code = HTTP_STATUS_OK; |
229681c1 | 2315 | } |
b423cd4c | 2316 | |
ef416fc2 | 2317 | if (ServerHeader) |
e200616a | 2318 | httpSetField(con->http, HTTP_FIELD_SERVER, ServerHeader); |
5ec1fd3d MS |
2319 | |
2320 | if (code == HTTP_STATUS_METHOD_NOT_ALLOWED) | |
e200616a | 2321 | httpSetField(con->http, HTTP_FIELD_ALLOW, "GET, HEAD, OPTIONS, POST, PUT"); |
ef416fc2 | 2322 | |
5ec1fd3d | 2323 | if (code == HTTP_STATUS_UNAUTHORIZED) |
ef416fc2 | 2324 | { |
5bd77a73 | 2325 | if (auth_type == CUPSD_AUTH_NONE) |
f899b121 | 2326 | { |
5bd77a73 | 2327 | if (!con->best || con->best->type <= CUPSD_AUTH_NONE) |
dcb445bc | 2328 | auth_type = cupsdDefaultAuthType(); |
f899b121 | 2329 | else |
2330 | auth_type = con->best->type; | |
2331 | } | |
f7deaa1a | 2332 | |
2333 | auth_str[0] = '\0'; | |
2334 | ||
e0660879 | 2335 | if (auth_type == CUPSD_AUTH_BASIC) |
f7deaa1a | 2336 | strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str)); |
f7deaa1a | 2337 | #ifdef HAVE_GSSAPI |
eac3a0a0 | 2338 | else if (auth_type == CUPSD_AUTH_NEGOTIATE) |
6961465f MS |
2339 | { |
2340 | # ifdef AF_LOCAL | |
5ec1fd3d | 2341 | if (httpAddrFamily(httpGetAddress(con->http)) == AF_LOCAL) |
6961465f MS |
2342 | strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str)); |
2343 | else | |
2344 | # endif /* AF_LOCAL */ | |
f7deaa1a | 2345 | strlcpy(auth_str, "Negotiate", sizeof(auth_str)); |
6961465f | 2346 | } |
f7deaa1a | 2347 | #endif /* HAVE_GSSAPI */ |
2348 | ||
e07d4801 | 2349 | if (con->best && auth_type != CUPSD_AUTH_NEGOTIATE && |
5ec1fd3d | 2350 | !_cups_strcasecmp(httpGetHostname(con->http, NULL, 0), "localhost")) |
ef416fc2 | 2351 | { |
e07d4801 MS |
2352 | /* |
2353 | * Add a "trc" (try root certification) parameter for local non-Kerberos | |
2354 | * requests when the request requires system group membership - then the | |
2355 | * client knows the root certificate can/should be used. | |
2356 | * | |
f3c17241 | 2357 | * Also, for OS X we also look for @AUTHKEY and add an "authkey" |
e07d4801 MS |
2358 | * parameter as needed... |
2359 | */ | |
2360 | ||
10d09e33 MS |
2361 | char *name, /* Current user name */ |
2362 | *auth_key; /* Auth key buffer */ | |
f7deaa1a | 2363 | size_t auth_size; /* Size of remaining buffer */ |
2364 | ||
f7deaa1a | 2365 | auth_key = auth_str + strlen(auth_str); |
7e86f2f6 | 2366 | auth_size = sizeof(auth_str) - (size_t)(auth_key - auth_str); |
f7deaa1a | 2367 | |
10d09e33 MS |
2368 | for (name = (char *)cupsArrayFirst(con->best->names); |
2369 | name; | |
2370 | name = (char *)cupsArrayNext(con->best->names)) | |
f7deaa1a | 2371 | { |
e07d4801 | 2372 | #ifdef HAVE_AUTHORIZATION_H |
88f9aafc | 2373 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9)) |
f7deaa1a | 2374 | { |
10d09e33 | 2375 | snprintf(auth_key, auth_size, ", authkey=\"%s\"", name + 9); |
f7deaa1a | 2376 | /* end parenthesis is stripped in conf.c */ |
2377 | break; | |
2378 | } | |
e07d4801 MS |
2379 | else |
2380 | #endif /* HAVE_AUTHORIZATION_H */ | |
88f9aafc | 2381 | if (!_cups_strcasecmp(name, "@SYSTEM")) |
f7deaa1a | 2382 | { |
e07d4801 MS |
2383 | #ifdef HAVE_AUTHORIZATION_H |
2384 | if (SystemGroupAuthKey) | |
2385 | snprintf(auth_key, auth_size, | |
07ed0e9a | 2386 | ", authkey=\"%s\"", |
e07d4801 MS |
2387 | SystemGroupAuthKey); |
2388 | else | |
2389 | #else | |
f11a948a | 2390 | strlcpy(auth_key, ", trc=\"y\"", auth_size); |
e07d4801 | 2391 | #endif /* HAVE_AUTHORIZATION_H */ |
f7deaa1a | 2392 | break; |
2393 | } | |
2394 | } | |
ef416fc2 | 2395 | } |
f7deaa1a | 2396 | |
bc44d920 | 2397 | if (auth_str[0]) |
2398 | { | |
996acce8 | 2399 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "WWW-Authenticate: %s", auth_str); |
bc44d920 | 2400 | |
e200616a | 2401 | httpSetField(con->http, HTTP_FIELD_WWW_AUTHENTICATE, auth_str); |
bc44d920 | 2402 | } |
ef416fc2 | 2403 | } |
2404 | ||
e1d6a774 | 2405 | if (con->language && strcmp(con->language->language, "C")) |
e200616a | 2406 | httpSetField(con->http, HTTP_FIELD_CONTENT_LANGUAGE, con->language->language); |
ef416fc2 | 2407 | |
e1d6a774 | 2408 | if (type) |
ef416fc2 | 2409 | { |
2410 | if (!strcmp(type, "text/html")) | |
e200616a MS |
2411 | httpSetField(con->http, HTTP_FIELD_CONTENT_TYPE, "text/html; charset=utf-8"); |
2412 | else | |
2413 | httpSetField(con->http, HTTP_FIELD_CONTENT_TYPE, type); | |
ef416fc2 | 2414 | } |
2415 | ||
e200616a | 2416 | return (!httpWriteResponse(con->http, code)); |
ef416fc2 | 2417 | } |
2418 | ||
2419 | ||
2420 | /* | |
2421 | * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs. | |
2422 | */ | |
2423 | ||
2424 | void | |
2425 | cupsdUpdateCGI(void) | |
2426 | { | |
2427 | char *ptr, /* Pointer to end of line in buffer */ | |
2428 | message[1024]; /* Pointer to message text */ | |
2429 | int loglevel; /* Log level for message */ | |
2430 | ||
2431 | ||
2432 | while ((ptr = cupsdStatBufUpdate(CGIStatusBuffer, &loglevel, | |
2433 | message, sizeof(message))) != NULL) | |
f0ab5bff MS |
2434 | { |
2435 | if (loglevel == CUPSD_LOG_INFO) | |
2436 | cupsdLogMessage(CUPSD_LOG_INFO, "%s", message); | |
2437 | ||
ef416fc2 | 2438 | if (!strchr(CGIStatusBuffer->buffer, '\n')) |
2439 | break; | |
f0ab5bff | 2440 | } |
ef416fc2 | 2441 | |
d09495fa | 2442 | if (ptr == NULL && !CGIStatusBuffer->bufused) |
ef416fc2 | 2443 | { |
2444 | /* | |
2445 | * Fatal error on pipe - should never happen! | |
2446 | */ | |
2447 | ||
2448 | cupsdLogMessage(CUPSD_LOG_CRIT, | |
2449 | "cupsdUpdateCGI: error reading from CGI error pipe - %s", | |
2450 | strerror(errno)); | |
2451 | } | |
2452 | } | |
2453 | ||
2454 | ||
2455 | /* | |
2456 | * 'cupsdWriteClient()' - Write data to a client as needed. | |
2457 | */ | |
2458 | ||
f7deaa1a | 2459 | void |
ef416fc2 | 2460 | cupsdWriteClient(cupsd_client_t *con) /* I - Client connection */ |
2461 | { | |
68b10830 MS |
2462 | int bytes, /* Number of bytes written */ |
2463 | field_col; /* Current column */ | |
2464 | char *bufptr, /* Pointer into buffer */ | |
2465 | *bufend; /* Pointer to end of buffer */ | |
ef416fc2 | 2466 | ipp_state_t ipp_state; /* IPP state value */ |
2467 | ||
2468 | ||
5ec1fd3d | 2469 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "con->http=%p", con->http); |
996acce8 MS |
2470 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2471 | "cupsdWriteClient " | |
2472 | "error=%d, " | |
2473 | "used=%d, " | |
2474 | "state=%s, " | |
2475 | "data_encoding=HTTP_ENCODING_%s, " | |
2476 | "data_remaining=" CUPS_LLFMT ", " | |
2477 | "response=%p(%s), " | |
2478 | "pipe_pid=%d, " | |
2479 | "file=%d", | |
5ec1fd3d MS |
2480 | httpError(con->http), (int)httpGetReady(con->http), |
2481 | httpStateString(httpGetState(con->http)), | |
d21dc0ed MS |
2482 | httpIsChunked(con->http) ? "CHUNKED" : "LENGTH", |
2483 | CUPS_LLCAST httpGetLength2(con->http), | |
996acce8 | 2484 | con->response, |
a73ca01e | 2485 | con->response ? ippStateString(ippGetState(con->request)) : "", |
996acce8 MS |
2486 | con->pipe_pid, con->file); |
2487 | ||
5ec1fd3d MS |
2488 | if (httpGetState(con->http) != HTTP_STATE_GET_SEND && |
2489 | httpGetState(con->http) != HTTP_STATE_POST_SEND) | |
8b116e60 MS |
2490 | { |
2491 | /* | |
2492 | * If we get called in the wrong state, then something went wrong with the | |
2493 | * connection and we need to shut it down... | |
2494 | */ | |
2495 | ||
43dcaf3b | 2496 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing on unexpected HTTP write state %s.", |
5ec1fd3d | 2497 | httpStateString(httpGetState(con->http))); |
8b116e60 | 2498 | cupsdCloseClient(con); |
f7deaa1a | 2499 | return; |
8b116e60 | 2500 | } |
f7deaa1a | 2501 | |
2502 | if (con->pipe_pid) | |
2503 | { | |
2504 | /* | |
2505 | * Make sure we select on the CGI output... | |
2506 | */ | |
2507 | ||
f899b121 | 2508 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
f7deaa1a | 2509 | |
996acce8 | 2510 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for CGI data."); |
1bc82dd9 | 2511 | |
f7deaa1a | 2512 | if (!con->file_ready) |
2513 | { | |
2514 | /* | |
2515 | * Try again later when there is CGI output available... | |
2516 | */ | |
2517 | ||
996acce8 | 2518 | cupsdRemoveSelect(httpGetFd(con->http)); |
f7deaa1a | 2519 | return; |
2520 | } | |
2521 | ||
2522 | con->file_ready = 0; | |
2523 | } | |
ef416fc2 | 2524 | |
209cc9b6 MS |
2525 | bytes = (ssize_t)(sizeof(con->header) - (size_t)con->header_used); |
2526 | ||
1720786e | 2527 | if (!con->pipe_pid && bytes > (ssize_t)httpGetRemaining(con->http)) |
209cc9b6 MS |
2528 | { |
2529 | /* | |
2530 | * Limit GET bytes to original size of file (STR #3265)... | |
2531 | */ | |
2532 | ||
2533 | bytes = (ssize_t)httpGetRemaining(con->http); | |
2534 | } | |
2535 | ||
5ec1fd3d | 2536 | if (con->response && con->response->state != IPP_STATE_DATA) |
ef416fc2 | 2537 | { |
d21dc0ed | 2538 | size_t wused = httpGetPending(con->http); /* Previous write buffer use */ |
94436c5a MS |
2539 | |
2540 | do | |
2541 | { | |
2542 | /* | |
2543 | * Write a single attribute or the IPP message header... | |
2544 | */ | |
2545 | ||
996acce8 | 2546 | ipp_state = ippWrite(con->http, con->response); |
94436c5a MS |
2547 | |
2548 | /* | |
2549 | * If the write buffer has been flushed, stop buffering up attributes... | |
2550 | */ | |
2551 | ||
d21dc0ed | 2552 | if (httpGetPending(con->http) <= wused) |
94436c5a MS |
2553 | break; |
2554 | } | |
2555 | while (ipp_state != IPP_STATE_DATA && ipp_state != IPP_STATE_ERROR); | |
2556 | ||
996acce8 MS |
2557 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2558 | "Writing IPP response, ipp_state=%s, old " | |
d21dc0ed MS |
2559 | "wused=" CUPS_LLFMT ", new wused=" CUPS_LLFMT, |
2560 | ippStateString(ipp_state), | |
2561 | CUPS_LLCAST wused, CUPS_LLCAST httpGetPending(con->http)); | |
2562 | ||
2563 | if (httpGetPending(con->http) > 0) | |
996acce8 | 2564 | httpFlushWrite(con->http); |
94436c5a MS |
2565 | |
2566 | bytes = ipp_state != IPP_STATE_ERROR && | |
2567 | (con->file >= 0 || ipp_state != IPP_STATE_DATA); | |
21f36711 | 2568 | |
996acce8 MS |
2569 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2570 | "bytes=%d, http_state=%d, data_remaining=" CUPS_LLFMT, | |
5ec1fd3d | 2571 | (int)bytes, httpGetState(con->http), |
d21dc0ed | 2572 | CUPS_LLCAST httpGetLength2(con->http)); |
ef416fc2 | 2573 | } |
209cc9b6 | 2574 | else if ((bytes = read(con->file, con->header + con->header_used, (size_t)bytes)) > 0) |
ef416fc2 | 2575 | { |
68b10830 MS |
2576 | con->header_used += bytes; |
2577 | ||
ef416fc2 | 2578 | if (con->pipe_pid && !con->got_fields) |
2579 | { | |
2580 | /* | |
2581 | * Inspect the data for Content-Type and other fields. | |
2582 | */ | |
2583 | ||
68b10830 MS |
2584 | for (bufptr = con->header, bufend = con->header + con->header_used, |
2585 | field_col = 0; | |
2586 | !con->got_fields && bufptr < bufend; | |
2587 | bufptr ++) | |
d1c13e16 | 2588 | { |
ef416fc2 | 2589 | if (*bufptr == '\n') |
2590 | { | |
2591 | /* | |
2592 | * Send line to client... | |
2593 | */ | |
2594 | ||
68b10830 | 2595 | if (bufptr > con->header && bufptr[-1] == '\r') |
ef416fc2 | 2596 | bufptr[-1] = '\0'; |
2597 | *bufptr++ = '\0'; | |
2598 | ||
996acce8 | 2599 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Script header: %s", con->header); |
ef416fc2 | 2600 | |
2601 | if (!con->sent_header) | |
2602 | { | |
2603 | /* | |
2604 | * Handle redirection and CGI status codes... | |
2605 | */ | |
2606 | ||
e200616a MS |
2607 | http_field_t field; /* HTTP field */ |
2608 | char *value = strchr(con->header, ':'); | |
2609 | /* Value of field */ | |
2610 | ||
2611 | if (value) | |
d6ae789d | 2612 | { |
e200616a MS |
2613 | *value++ = '\0'; |
2614 | while (isspace(*value & 255)) | |
2615 | value ++; | |
2616 | } | |
321d8d57 | 2617 | |
e200616a | 2618 | field = httpFieldValue(con->header); |
07725fee | 2619 | |
e200616a MS |
2620 | if (field != HTTP_FIELD_UNKNOWN && value) |
2621 | { | |
2622 | httpSetField(con->http, field, value); | |
2623 | ||
2624 | if (field == HTTP_FIELD_LOCATION) | |
2625 | { | |
2626 | con->pipe_status = HTTP_STATUS_SEE_OTHER; | |
2627 | con->sent_header = 2; | |
2628 | } | |
2629 | else | |
2630 | con->sent_header = 1; | |
d6ae789d | 2631 | } |
e200616a | 2632 | else if (!_cups_strcasecmp(con->header, "Status") && value) |
07725fee | 2633 | { |
e200616a | 2634 | con->pipe_status = (http_status_t)atoi(value); |
07725fee | 2635 | con->sent_header = 2; |
2636 | } | |
e200616a | 2637 | else if (!_cups_strcasecmp(con->header, "Set-Cookie") && value) |
4744bd90 | 2638 | { |
e200616a MS |
2639 | httpSetCookie(con->http, value); |
2640 | con->sent_header = 1; | |
2641 | } | |
ef416fc2 | 2642 | } |
2643 | ||
ef416fc2 | 2644 | /* |
2645 | * Update buffer... | |
2646 | */ | |
2647 | ||
68b10830 | 2648 | con->header_used -= bufptr - con->header; |
d1c13e16 | 2649 | |
68b10830 | 2650 | if (con->header_used > 0) |
07623986 | 2651 | memmove(con->header, bufptr, (size_t)con->header_used); |
d1c13e16 | 2652 | |
68b10830 | 2653 | bufptr = con->header - 1; |
ef416fc2 | 2654 | |
2655 | /* | |
2656 | * See if the line was empty... | |
2657 | */ | |
2658 | ||
68b10830 | 2659 | if (field_col == 0) |
d09495fa | 2660 | { |
ef416fc2 | 2661 | con->got_fields = 1; |
d09495fa | 2662 | |
e200616a MS |
2663 | if (httpGetVersion(con->http) == HTTP_VERSION_1_1 && |
2664 | !httpGetField(con->http, HTTP_FIELD_CONTENT_LENGTH)[0]) | |
2665 | httpSetLength(con->http, 0); | |
2666 | ||
f3211b6d MS |
2667 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Sending status %d for CGI.", con->pipe_status); |
2668 | ||
6abe9327 | 2669 | if (con->pipe_status == HTTP_STATUS_OK) |
07725fee | 2670 | { |
6abe9327 MS |
2671 | if (!cupsdSendHeader(con, con->pipe_status, NULL, CUPSD_AUTH_NONE)) |
2672 | { | |
2673 | cupsdCloseClient(con); | |
2674 | return; | |
2675 | } | |
2676 | } | |
2677 | else | |
2678 | { | |
2679 | if (!cupsdSendError(con, con->pipe_status, CUPSD_AUTH_NONE)) | |
2680 | { | |
2681 | cupsdCloseClient(con); | |
2682 | return; | |
2683 | } | |
07725fee | 2684 | } |
d09495fa | 2685 | } |
ef416fc2 | 2686 | else |
68b10830 | 2687 | field_col = 0; |
ef416fc2 | 2688 | } |
2689 | else if (*bufptr != '\r') | |
68b10830 | 2690 | field_col ++; |
d1c13e16 | 2691 | } |
ef416fc2 | 2692 | |
68b10830 | 2693 | if (!con->got_fields) |
47879b8b | 2694 | return; |
ef416fc2 | 2695 | } |
2696 | ||
68b10830 | 2697 | if (con->header_used > 0) |
ef416fc2 | 2698 | { |
7e86f2f6 | 2699 | if (httpWrite2(con->http, con->header, (size_t)con->header_used) < 0) |
4744bd90 | 2700 | { |
996acce8 | 2701 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing for error %d (%s)", |
5ec1fd3d | 2702 | httpError(con->http), strerror(httpError(con->http))); |
4744bd90 | 2703 | cupsdCloseClient(con); |
f7deaa1a | 2704 | return; |
4744bd90 | 2705 | } |
ef416fc2 | 2706 | |
d21dc0ed | 2707 | if (httpIsChunked(con->http)) |
996acce8 | 2708 | httpFlushWrite(con->http); |
ae71f5de | 2709 | |
68b10830 | 2710 | con->bytes += con->header_used; |
ef416fc2 | 2711 | |
5ec1fd3d | 2712 | if (httpGetState(con->http) == HTTP_STATE_WAITING) |
4744bd90 | 2713 | bytes = 0; |
68b10830 MS |
2714 | else |
2715 | bytes = con->header_used; | |
2716 | ||
2717 | con->header_used = 0; | |
4744bd90 | 2718 | } |
ef416fc2 | 2719 | } |
2720 | ||
8b116e60 | 2721 | if (bytes <= 0 || |
5ec1fd3d MS |
2722 | (httpGetState(con->http) != HTTP_STATE_GET_SEND && |
2723 | httpGetState(con->http) != HTTP_STATE_POST_SEND)) | |
ef416fc2 | 2724 | { |
38e73f87 | 2725 | if (!con->sent_header && con->pipe_pid) |
5ec1fd3d | 2726 | cupsdSendError(con, HTTP_STATUS_SERVER_ERROR, CUPSD_AUTH_NONE); |
94da7e34 MS |
2727 | else |
2728 | { | |
5ec1fd3d | 2729 | cupsdLogRequest(con, HTTP_STATUS_OK); |
ef416fc2 | 2730 | |
f3211b6d | 2731 | if (httpIsChunked(con->http) && (!con->pipe_pid || con->sent_header > 0)) |
ef416fc2 | 2732 | { |
dfc45c1b MS |
2733 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Sending 0-length chunk."); |
2734 | ||
996acce8 | 2735 | if (httpWrite2(con->http, "", 0) < 0) |
94da7e34 | 2736 | { |
996acce8 | 2737 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Closing for error %d (%s)", |
5ec1fd3d | 2738 | httpError(con->http), strerror(httpError(con->http))); |
94da7e34 MS |
2739 | cupsdCloseClient(con); |
2740 | return; | |
2741 | } | |
ef416fc2 | 2742 | } |
dfc45c1b MS |
2743 | |
2744 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Flushing write buffer."); | |
2745 | httpFlushWrite(con->http); | |
2746 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "New state is %s", httpStateString(httpGetState(con->http))); | |
ef416fc2 | 2747 | } |
2748 | ||
996acce8 | 2749 | cupsdAddSelect(httpGetFd(con->http), (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 2750 | |
996acce8 | 2751 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Waiting for request."); |
1bc82dd9 | 2752 | |
ef416fc2 | 2753 | if (con->file >= 0) |
2754 | { | |
f7deaa1a | 2755 | cupsdRemoveSelect(con->file); |
ef416fc2 | 2756 | |
2757 | if (con->pipe_pid) | |
2758 | cupsdEndProcess(con->pipe_pid, 0); | |
2759 | ||
ef416fc2 | 2760 | close(con->file); |
2761 | con->file = -1; | |
2762 | con->pipe_pid = 0; | |
2763 | } | |
2764 | ||
2765 | if (con->filename) | |
2766 | { | |
ef416fc2 | 2767 | unlink(con->filename); |
2768 | cupsdClearString(&con->filename); | |
2769 | } | |
2770 | ||
2abf387c | 2771 | if (con->request) |
ef416fc2 | 2772 | { |
2773 | ippDelete(con->request); | |
2774 | con->request = NULL; | |
2775 | } | |
2776 | ||
2abf387c | 2777 | if (con->response) |
ef416fc2 | 2778 | { |
2779 | ippDelete(con->response); | |
2780 | con->response = NULL; | |
2781 | } | |
2782 | ||
2783 | cupsdClearString(&con->command); | |
2784 | cupsdClearString(&con->options); | |
b86bc4cf | 2785 | cupsdClearString(&con->query_string); |
ef416fc2 | 2786 | |
5ec1fd3d | 2787 | if (!httpGetKeepAlive(con->http)) |
ef416fc2 | 2788 | { |
996acce8 MS |
2789 | cupsdLogClient(con, CUPSD_LOG_DEBUG, |
2790 | "Closing because Keep-Alive is disabled."); | |
ef416fc2 | 2791 | cupsdCloseClient(con); |
f7deaa1a | 2792 | return; |
ef416fc2 | 2793 | } |
f11a948a MS |
2794 | else |
2795 | { | |
2796 | cupsArrayRemove(ActiveClients, con); | |
2797 | cupsdSetBusyState(); | |
2798 | } | |
ef416fc2 | 2799 | } |
f7deaa1a | 2800 | } |
ef416fc2 | 2801 | |
f7deaa1a | 2802 | |
e1d6a774 | 2803 | /* |
2804 | * 'check_if_modified()' - Decode an "If-Modified-Since" line. | |
2805 | */ | |
2806 | ||
2807 | static int /* O - 1 if modified since */ | |
2808 | check_if_modified( | |
2809 | cupsd_client_t *con, /* I - Client connection */ | |
2810 | struct stat *filestats) /* I - File information */ | |
2811 | { | |
5ec1fd3d | 2812 | const char *ptr; /* Pointer into field */ |
e1d6a774 | 2813 | time_t date; /* Time/date value */ |
2814 | off_t size; /* Size/length value */ | |
2815 | ||
2816 | ||
2817 | size = 0; | |
2818 | date = 0; | |
5ec1fd3d | 2819 | ptr = httpGetField(con->http, HTTP_FIELD_IF_MODIFIED_SINCE); |
e1d6a774 | 2820 | |
2821 | if (*ptr == '\0') | |
2822 | return (1); | |
2823 | ||
996acce8 MS |
2824 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
2825 | "check_if_modified " | |
2826 | "filestats=%p(" CUPS_LLFMT ", %d)) If-Modified-Since=\"%s\"", | |
2827 | filestats, CUPS_LLCAST filestats->st_size, | |
2828 | (int)filestats->st_mtime, ptr); | |
e1d6a774 | 2829 | |
2830 | while (*ptr != '\0') | |
2831 | { | |
2832 | while (isspace(*ptr) || *ptr == ';') | |
2833 | ptr ++; | |
2834 | ||
88f9aafc | 2835 | if (_cups_strncasecmp(ptr, "length=", 7) == 0) |
e1d6a774 | 2836 | { |
2837 | ptr += 7; | |
2838 | size = strtoll(ptr, NULL, 10); | |
2839 | ||
2840 | while (isdigit(*ptr)) | |
2841 | ptr ++; | |
2842 | } | |
2843 | else if (isalpha(*ptr)) | |
2844 | { | |
2845 | date = httpGetDateTime(ptr); | |
2846 | while (*ptr != '\0' && *ptr != ';') | |
2847 | ptr ++; | |
2848 | } | |
e53920b9 | 2849 | else |
2850 | ptr ++; | |
e1d6a774 | 2851 | } |
2852 | ||
e1d6a774 | 2853 | return ((size != filestats->st_size && size != 0) || |
2854 | (date < filestats->st_mtime && date != 0) || | |
2855 | (size == 0 && date == 0)); | |
2856 | } | |
2857 | ||
2858 | ||
3dfe78b3 MS |
2859 | /* |
2860 | * 'compare_clients()' - Compare two client connections. | |
2861 | */ | |
2862 | ||
2863 | static int /* O - Result of comparison */ | |
2864 | compare_clients(cupsd_client_t *a, /* I - First client */ | |
2865 | cupsd_client_t *b, /* I - Second client */ | |
2866 | void *data) /* I - User data (not used) */ | |
2867 | { | |
2868 | (void)data; | |
2869 | ||
2870 | if (a == b) | |
2871 | return (0); | |
2872 | else if (a < b) | |
2873 | return (-1); | |
2874 | else | |
2875 | return (1); | |
2876 | } | |
2877 | ||
2878 | ||
d3d89474 MS |
2879 | #ifdef HAVE_SSL |
2880 | /* | |
2881 | * 'cupsd_start_tls()' - Start encryption on a connection. | |
2882 | */ | |
2883 | ||
2884 | static int /* O - 0 on success, -1 on error */ | |
2885 | cupsd_start_tls(cupsd_client_t *con, /* I - Client connection */ | |
2886 | http_encryption_t e) /* I - Encryption mode */ | |
2887 | { | |
d3d89474 MS |
2888 | if (httpEncryption(con->http, e)) |
2889 | { | |
2890 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to encrypt connection: %s", | |
2891 | cupsLastErrorString()); | |
2892 | return (-1); | |
2893 | } | |
2894 | ||
2895 | cupsdLogClient(con, CUPSD_LOG_INFO, "Connection now encrypted."); | |
2896 | return (0); | |
2897 | } | |
2898 | #endif /* HAVE_SSL */ | |
2899 | ||
2900 | ||
ef416fc2 | 2901 | /* |
2902 | * 'get_file()' - Get a filename and state info. | |
2903 | */ | |
2904 | ||
2905 | static char * /* O - Real filename */ | |
2906 | get_file(cupsd_client_t *con, /* I - Client connection */ | |
2907 | struct stat *filestats, /* O - File information */ | |
2908 | char *filename, /* IO - Filename buffer */ | |
07623986 | 2909 | size_t len) /* I - Buffer length */ |
ef416fc2 | 2910 | { |
2911 | int status; /* Status of filesystem calls */ | |
2912 | char *ptr; /* Pointer info filename */ | |
07623986 | 2913 | size_t plen; /* Remaining length after pointer */ |
db1f069b | 2914 | char language[7]; /* Language subdirectory, if any */ |
112fc3c0 | 2915 | int perm_check = 1; /* Do permissions check? */ |
ef416fc2 | 2916 | |
2917 | ||
2918 | /* | |
f7deaa1a | 2919 | * Figure out the real filename... |
ef416fc2 | 2920 | */ |
2921 | ||
db1f069b MS |
2922 | language[0] = '\0'; |
2923 | ||
7cf5915e | 2924 | if (!strncmp(con->uri, "/ppd/", 5) && !strchr(con->uri + 5, '/')) |
112fc3c0 | 2925 | { |
ef416fc2 | 2926 | snprintf(filename, len, "%s%s", ServerRoot, con->uri); |
112fc3c0 MS |
2927 | |
2928 | perm_check = 0; | |
2929 | } | |
7cf5915e MS |
2930 | else if (!strncmp(con->uri, "/icons/", 7) && !strchr(con->uri + 7, '/')) |
2931 | { | |
2932 | snprintf(filename, len, "%s/%s", CacheDir, con->uri + 7); | |
2933 | if (access(filename, F_OK) < 0) | |
2934 | snprintf(filename, len, "%s/images/generic.png", DocumentRoot); | |
112fc3c0 MS |
2935 | |
2936 | perm_check = 0; | |
7cf5915e | 2937 | } |
f7deaa1a | 2938 | else if (!strncmp(con->uri, "/rss/", 5) && !strchr(con->uri + 5, '/')) |
2939 | snprintf(filename, len, "%s/rss/%s", CacheDir, con->uri + 5); | |
112fc3c0 MS |
2940 | else if (!strcmp(con->uri, "/admin/conf/cupsd.conf")) |
2941 | { | |
2942 | strlcpy(filename, ConfigurationFile, len); | |
2943 | ||
2944 | perm_check = 0; | |
2945 | } | |
ef416fc2 | 2946 | else if (!strncmp(con->uri, "/admin/log/", 11)) |
2947 | { | |
2e4ff8af | 2948 | if (!strncmp(con->uri + 11, "access_log", 10) && AccessLog[0] == '/') |
ef416fc2 | 2949 | strlcpy(filename, AccessLog, len); |
2e4ff8af | 2950 | else if (!strncmp(con->uri + 11, "error_log", 9) && ErrorLog[0] == '/') |
ef416fc2 | 2951 | strlcpy(filename, ErrorLog, len); |
2e4ff8af | 2952 | else if (!strncmp(con->uri + 11, "page_log", 8) && PageLog[0] == '/') |
ef416fc2 | 2953 | strlcpy(filename, PageLog, len); |
2954 | else | |
2955 | return (NULL); | |
112fc3c0 MS |
2956 | |
2957 | perm_check = 0; | |
ef416fc2 | 2958 | } |
d6ae789d | 2959 | else if (con->language) |
db1f069b MS |
2960 | { |
2961 | snprintf(language, sizeof(language), "/%s", con->language->language); | |
2962 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
2963 | } | |
ef416fc2 | 2964 | else |
2965 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); | |
2966 | ||
2967 | if ((ptr = strchr(filename, '?')) != NULL) | |
2968 | *ptr = '\0'; | |
2969 | ||
2970 | /* | |
2971 | * Grab the status for this language; if there isn't a language-specific file | |
2972 | * then fallback to the default one... | |
2973 | */ | |
2974 | ||
9e92ab19 | 2975 | if ((status = lstat(filename, filestats)) != 0 && language[0] && |
7cf5915e | 2976 | strncmp(con->uri, "/icons/", 7) && |
d6ae789d | 2977 | strncmp(con->uri, "/ppd/", 5) && |
7cf5915e | 2978 | strncmp(con->uri, "/rss/", 5) && |
d6ae789d | 2979 | strncmp(con->uri, "/admin/conf/", 12) && |
2980 | strncmp(con->uri, "/admin/log/", 11)) | |
ef416fc2 | 2981 | { |
2982 | /* | |
d6ae789d | 2983 | * Drop the country code... |
ef416fc2 | 2984 | */ |
2985 | ||
db1f069b MS |
2986 | language[3] = '\0'; |
2987 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
d6ae789d | 2988 | |
2989 | if ((ptr = strchr(filename, '?')) != NULL) | |
2990 | *ptr = '\0'; | |
2991 | ||
36618f45 | 2992 | if ((status = lstat(filename, filestats)) != 0) |
ef416fc2 | 2993 | { |
d6ae789d | 2994 | /* |
2995 | * Drop the language prefix and try the root directory... | |
2996 | */ | |
2997 | ||
db1f069b | 2998 | language[0] = '\0'; |
ef416fc2 | 2999 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); |
3000 | ||
3001 | if ((ptr = strchr(filename, '?')) != NULL) | |
3002 | *ptr = '\0'; | |
3003 | ||
36618f45 | 3004 | status = lstat(filename, filestats); |
ef416fc2 | 3005 | } |
3006 | } | |
3007 | ||
3008 | /* | |
36618f45 MS |
3009 | * If we've found a symlink, 404 the sucker to avoid disclosing information. |
3010 | */ | |
3011 | ||
3012 | if (!status && S_ISLNK(filestats->st_mode)) | |
3013 | { | |
3014 | cupsdLogClient(con, CUPSD_LOG_INFO, "Symlinks such as \"%s\" are not allowed.", filename); | |
3015 | return (NULL); | |
3016 | } | |
3017 | ||
3018 | /* | |
3019 | * Similarly, if the file/directory does not have world read permissions, do | |
3020 | * not allow access... | |
3021 | */ | |
3022 | ||
112fc3c0 | 3023 | if (!status && perm_check && !(filestats->st_mode & S_IROTH)) |
36618f45 MS |
3024 | { |
3025 | cupsdLogClient(con, CUPSD_LOG_INFO, "Files/directories such as \"%s\" must be world-readable.", filename); | |
3026 | return (NULL); | |
3027 | } | |
3028 | ||
3029 | /* | |
3030 | * If we've found a directory, get the index.html file instead... | |
ef416fc2 | 3031 | */ |
3032 | ||
3033 | if (!status && S_ISDIR(filestats->st_mode)) | |
3034 | { | |
db1f069b MS |
3035 | /* |
3036 | * Make sure the URI ends with a slash... | |
3037 | */ | |
ef416fc2 | 3038 | |
db1f069b MS |
3039 | if (con->uri[strlen(con->uri) - 1] != '/') |
3040 | strlcat(con->uri, "/", sizeof(con->uri)); | |
ef416fc2 | 3041 | |
db1f069b MS |
3042 | /* |
3043 | * Find the directory index file, trying every language... | |
3044 | */ | |
ef416fc2 | 3045 | |
db1f069b | 3046 | do |
ef416fc2 | 3047 | { |
db1f069b MS |
3048 | if (status && language[0]) |
3049 | { | |
3050 | /* | |
3051 | * Try a different language subset... | |
3052 | */ | |
3053 | ||
3054 | if (language[3]) | |
3055 | language[0] = '\0'; /* Strip country code */ | |
3056 | else | |
3057 | language[0] = '\0'; /* Strip language */ | |
3058 | } | |
3059 | ||
3060 | /* | |
3061 | * Look for the index file... | |
3062 | */ | |
3063 | ||
3064 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
3065 | ||
3066 | if ((ptr = strchr(filename, '?')) != NULL) | |
3067 | *ptr = '\0'; | |
3068 | ||
3069 | ptr = filename + strlen(filename); | |
07623986 | 3070 | plen = len - (size_t)(ptr - filename); |
db1f069b MS |
3071 | |
3072 | strlcpy(ptr, "index.html", plen); | |
9e92ab19 | 3073 | status = lstat(filename, filestats); |
db1f069b MS |
3074 | |
3075 | #ifdef HAVE_JAVA | |
3076 | if (status) | |
3077 | { | |
3078 | strlcpy(ptr, "index.class", plen); | |
9e92ab19 | 3079 | status = lstat(filename, filestats); |
db1f069b | 3080 | } |
ef416fc2 | 3081 | #endif /* HAVE_JAVA */ |
3082 | ||
3083 | #ifdef HAVE_PERL | |
db1f069b MS |
3084 | if (status) |
3085 | { | |
3086 | strlcpy(ptr, "index.pl", plen); | |
9e92ab19 | 3087 | status = lstat(filename, filestats); |
db1f069b | 3088 | } |
ef416fc2 | 3089 | #endif /* HAVE_PERL */ |
3090 | ||
3091 | #ifdef HAVE_PHP | |
db1f069b MS |
3092 | if (status) |
3093 | { | |
3094 | strlcpy(ptr, "index.php", plen); | |
9e92ab19 | 3095 | status = lstat(filename, filestats); |
db1f069b | 3096 | } |
ef416fc2 | 3097 | #endif /* HAVE_PHP */ |
3098 | ||
3099 | #ifdef HAVE_PYTHON | |
db1f069b MS |
3100 | if (status) |
3101 | { | |
3102 | strlcpy(ptr, "index.pyc", plen); | |
9e92ab19 | 3103 | status = lstat(filename, filestats); |
db1f069b | 3104 | } |
ef416fc2 | 3105 | |
db1f069b MS |
3106 | if (status) |
3107 | { | |
3108 | strlcpy(ptr, "index.py", plen); | |
9e92ab19 | 3109 | status = lstat(filename, filestats); |
db1f069b | 3110 | } |
ef416fc2 | 3111 | #endif /* HAVE_PYTHON */ |
db1f069b MS |
3112 | |
3113 | } | |
3114 | while (status && language[0]); | |
9e92ab19 MS |
3115 | |
3116 | /* | |
3117 | * If we've found a symlink, 404 the sucker to avoid disclosing information. | |
3118 | */ | |
3119 | ||
3120 | if (!status && S_ISLNK(filestats->st_mode)) | |
3121 | { | |
3122 | cupsdLogClient(con, CUPSD_LOG_INFO, "Symlinks such as \"%s\" are not allowed.", filename); | |
3123 | return (NULL); | |
3124 | } | |
2e667a52 MS |
3125 | |
3126 | /* | |
3127 | * Similarly, if the file/directory does not have world read permissions, do | |
3128 | * not allow access... | |
3129 | */ | |
3130 | ||
112fc3c0 | 3131 | if (!status && perm_check && !(filestats->st_mode & S_IROTH)) |
2e667a52 MS |
3132 | { |
3133 | cupsdLogClient(con, CUPSD_LOG_INFO, "Files/directories such as \"%s\" must be world-readable.", filename); | |
3134 | return (NULL); | |
3135 | } | |
ef416fc2 | 3136 | } |
3137 | ||
07623986 | 3138 | 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 | 3139 | |
ef416fc2 | 3140 | if (status) |
3141 | return (NULL); | |
3142 | else | |
3143 | return (filename); | |
3144 | } | |
3145 | ||
3146 | ||
3147 | /* | |
c41769ff | 3148 | * 'install_cupsd_conf()' - Install a configuration file. |
ef416fc2 | 3149 | */ |
3150 | ||
3151 | static http_status_t /* O - Status */ | |
c41769ff | 3152 | install_cupsd_conf(cupsd_client_t *con) /* I - Connection */ |
ef416fc2 | 3153 | { |
321d8d57 | 3154 | char filename[1024]; /* Configuration filename */ |
ef416fc2 | 3155 | cups_file_t *in, /* Input file */ |
3156 | *out; /* Output file */ | |
321d8d57 MS |
3157 | char buffer[16384]; /* Copy buffer */ |
3158 | ssize_t bytes; /* Number of bytes */ | |
ef416fc2 | 3159 | |
3160 | ||
3161 | /* | |
321d8d57 | 3162 | * Open the request file... |
ef416fc2 | 3163 | */ |
3164 | ||
321d8d57 | 3165 | if ((in = cupsFileOpen(con->filename, "rb")) == NULL) |
ef416fc2 | 3166 | { |
996acce8 | 3167 | cupsdLogClient(con, CUPSD_LOG_ERROR, "Unable to open request file \"%s\": %s", |
321d8d57 | 3168 | con->filename, strerror(errno)); |
5ec1fd3d | 3169 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3170 | } |
3171 | ||
3172 | /* | |
321d8d57 | 3173 | * Open the new config file... |
ef416fc2 | 3174 | */ |
3175 | ||
cb7f98ee | 3176 | if ((out = cupsdCreateConfFile(ConfigurationFile, ConfigFilePerm)) == NULL) |
ef416fc2 | 3177 | { |
3178 | cupsFileClose(in); | |
5ec1fd3d | 3179 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3180 | } |
3181 | ||
996acce8 | 3182 | cupsdLogClient(con, CUPSD_LOG_INFO, "Installing config file \"%s\"...", |
cb7f98ee | 3183 | ConfigurationFile); |
ef416fc2 | 3184 | |
3185 | /* | |
3186 | * Copy from the request to the new config file... | |
3187 | */ | |
3188 | ||
3189 | while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0) | |
7e86f2f6 | 3190 | if (cupsFileWrite(out, buffer, (size_t)bytes) < bytes) |
ef416fc2 | 3191 | { |
996acce8 | 3192 | cupsdLogClient(con, CUPSD_LOG_ERROR, |
321d8d57 | 3193 | "Unable to copy to config file \"%s\": %s", |
cb7f98ee | 3194 | ConfigurationFile, strerror(errno)); |
ef416fc2 | 3195 | |
3196 | cupsFileClose(in); | |
3197 | cupsFileClose(out); | |
321d8d57 | 3198 | |
cb7f98ee MS |
3199 | snprintf(filename, sizeof(filename), "%s.N", ConfigurationFile); |
3200 | cupsdUnlinkOrRemoveFile(filename); | |
ef416fc2 | 3201 | |
5ec1fd3d | 3202 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3203 | } |
3204 | ||
3205 | /* | |
3206 | * Close the files... | |
3207 | */ | |
3208 | ||
3209 | cupsFileClose(in); | |
ef416fc2 | 3210 | |
cb7f98ee | 3211 | if (cupsdCloseCreatedConfFile(out, ConfigurationFile)) |
5ec1fd3d | 3212 | return (HTTP_STATUS_SERVER_ERROR); |
ef416fc2 | 3213 | |
3214 | /* | |
3215 | * Remove the request file... | |
3216 | */ | |
3217 | ||
cb7f98ee | 3218 | cupsdUnlinkOrRemoveFile(con->filename); |
ef416fc2 | 3219 | cupsdClearString(&con->filename); |
3220 | ||
ef416fc2 | 3221 | /* |
c41769ff | 3222 | * Set the NeedReload flag... |
ef416fc2 | 3223 | */ |
3224 | ||
c41769ff | 3225 | NeedReload = RELOAD_CUPSD; |
ef416fc2 | 3226 | ReloadTime = time(NULL); |
3227 | ||
3228 | /* | |
3229 | * Return that the file was created successfully... | |
3230 | */ | |
3231 | ||
5ec1fd3d | 3232 | return (HTTP_STATUS_CREATED); |
ef416fc2 | 3233 | } |
3234 | ||
3235 | ||
e1d6a774 | 3236 | /* |
3237 | * 'is_cgi()' - Is the resource a CGI script/program? | |
3238 | */ | |
3239 | ||
3240 | static int /* O - 1 = CGI, 0 = file */ | |
3241 | is_cgi(cupsd_client_t *con, /* I - Client connection */ | |
3242 | const char *filename, /* I - Real filename */ | |
3243 | struct stat *filestats, /* I - File information */ | |
3244 | mime_type_t *type) /* I - MIME type */ | |
3245 | { | |
3246 | const char *options; /* Options on URL */ | |
3247 | ||
3248 | ||
e1d6a774 | 3249 | /* |
3250 | * Get the options, if any... | |
3251 | */ | |
3252 | ||
3253 | if ((options = strchr(con->uri, '?')) != NULL) | |
a0f6818e MS |
3254 | { |
3255 | options ++; | |
3256 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", options); | |
3257 | } | |
b86bc4cf | 3258 | |
e1d6a774 | 3259 | /* |
3260 | * Check for known types... | |
3261 | */ | |
3262 | ||
88f9aafc | 3263 | if (!type || _cups_strcasecmp(type->super, "application")) |
e1d6a774 | 3264 | { |
996acce8 MS |
3265 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3266 | "is_cgi filename=\"%s\", filestats=%p, " | |
3267 | "type=%s/%s, returning 0", filename, | |
3268 | filestats, type ? type->super : "unknown", | |
3269 | type ? type->type : "unknown"); | |
e1d6a774 | 3270 | return (0); |
3271 | } | |
3272 | ||
88f9aafc | 3273 | if (!_cups_strcasecmp(type->type, "x-httpd-cgi") && |
e1d6a774 | 3274 | (filestats->st_mode & 0111)) |
3275 | { | |
3276 | /* | |
3277 | * "application/x-httpd-cgi" is a CGI script. | |
3278 | */ | |
3279 | ||
3280 | cupsdSetString(&con->command, filename); | |
3281 | ||
a0f6818e MS |
3282 | if (options) |
3283 | cupsdSetStringf(&con->options, " %s", options); | |
e1d6a774 | 3284 | |
996acce8 MS |
3285 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3286 | "is_cgi filename=\"%s\", filestats=%p, " | |
3287 | "type=%s/%s, returning 1", filename, | |
3288 | filestats, type->super, type->type); | |
e1d6a774 | 3289 | return (1); |
3290 | } | |
3291 | #ifdef HAVE_JAVA | |
88f9aafc | 3292 | else if (!_cups_strcasecmp(type->type, "x-httpd-java")) |
e1d6a774 | 3293 | { |
3294 | /* | |
3295 | * "application/x-httpd-java" is a Java servlet. | |
3296 | */ | |
3297 | ||
3298 | cupsdSetString(&con->command, CUPS_JAVA); | |
3299 | ||
3300 | if (options) | |
b94498cf | 3301 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3302 | else |
b94498cf | 3303 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3304 | |
996acce8 MS |
3305 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3306 | "is_cgi filename=\"%s\", filestats=%p, " | |
3307 | "type=%s/%s, returning 1", filename, | |
3308 | filestats, type->super, type->type); | |
e1d6a774 | 3309 | return (1); |
3310 | } | |
3311 | #endif /* HAVE_JAVA */ | |
3312 | #ifdef HAVE_PERL | |
88f9aafc | 3313 | else if (!_cups_strcasecmp(type->type, "x-httpd-perl")) |
e1d6a774 | 3314 | { |
3315 | /* | |
3316 | * "application/x-httpd-perl" is a Perl page. | |
3317 | */ | |
3318 | ||
3319 | cupsdSetString(&con->command, CUPS_PERL); | |
3320 | ||
3321 | if (options) | |
b94498cf | 3322 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3323 | else |
b94498cf | 3324 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3325 | |
996acce8 MS |
3326 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3327 | "is_cgi filename=\"%s\", filestats=%p, " | |
3328 | "type=%s/%s, returning 1", filename, | |
3329 | filestats, type->super, type->type); | |
e1d6a774 | 3330 | return (1); |
3331 | } | |
3332 | #endif /* HAVE_PERL */ | |
3333 | #ifdef HAVE_PHP | |
88f9aafc | 3334 | else if (!_cups_strcasecmp(type->type, "x-httpd-php")) |
e1d6a774 | 3335 | { |
3336 | /* | |
3337 | * "application/x-httpd-php" is a PHP page. | |
3338 | */ | |
3339 | ||
3340 | cupsdSetString(&con->command, CUPS_PHP); | |
3341 | ||
3342 | if (options) | |
b94498cf | 3343 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3344 | else |
b94498cf | 3345 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3346 | |
996acce8 MS |
3347 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3348 | "is_cgi filename=\"%s\", filestats=%p, " | |
3349 | "type=%s/%s, returning 1", filename, | |
3350 | filestats, type->super, type->type); | |
e1d6a774 | 3351 | return (1); |
3352 | } | |
3353 | #endif /* HAVE_PHP */ | |
3354 | #ifdef HAVE_PYTHON | |
88f9aafc | 3355 | else if (!_cups_strcasecmp(type->type, "x-httpd-python")) |
e1d6a774 | 3356 | { |
3357 | /* | |
3358 | * "application/x-httpd-python" is a Python page. | |
3359 | */ | |
3360 | ||
3361 | cupsdSetString(&con->command, CUPS_PYTHON); | |
3362 | ||
3363 | if (options) | |
b94498cf | 3364 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3365 | else |
b94498cf | 3366 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3367 | |
996acce8 MS |
3368 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3369 | "is_cgi filename=\"%s\", filestats=%p, " | |
3370 | "type=%s/%s, returning 1", filename, | |
3371 | filestats, type->super, type->type); | |
e1d6a774 | 3372 | return (1); |
3373 | } | |
3374 | #endif /* HAVE_PYTHON */ | |
3375 | ||
996acce8 MS |
3376 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3377 | "is_cgi filename=\"%s\", filestats=%p, " | |
3378 | "type=%s/%s, returning 0", filename, | |
3379 | filestats, type->super, type->type); | |
e1d6a774 | 3380 | return (0); |
3381 | } | |
3382 | ||
3383 | ||
ef416fc2 | 3384 | /* |
3385 | * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. ".."). | |
3386 | */ | |
3387 | ||
3388 | static int /* O - 0 if relative, 1 if absolute */ | |
3389 | is_path_absolute(const char *path) /* I - Input path */ | |
3390 | { | |
3391 | /* | |
3392 | * Check for a leading slash... | |
3393 | */ | |
3394 | ||
3395 | if (path[0] != '/') | |
3396 | return (0); | |
3397 | ||
12163006 MS |
3398 | /* |
3399 | * Check for "<" or quotes in the path and reject since this is probably | |
3400 | * someone trying to inject HTML... | |
3401 | */ | |
3402 | ||
3403 | if (strchr(path, '<') != NULL || strchr(path, '\"') != NULL || strchr(path, '\'') != NULL) | |
3404 | return (0); | |
3405 | ||
ef416fc2 | 3406 | /* |
3407 | * Check for "/.." in the path... | |
3408 | */ | |
3409 | ||
3410 | while ((path = strstr(path, "/..")) != NULL) | |
3411 | { | |
3412 | if (!path[3] || path[3] == '/') | |
3413 | return (0); | |
3414 | ||
3415 | path ++; | |
3416 | } | |
3417 | ||
3418 | /* | |
3419 | * If we haven't found any relative paths, return 1 indicating an | |
3420 | * absolute path... | |
3421 | */ | |
3422 | ||
3423 | return (1); | |
3424 | } | |
3425 | ||
3426 | ||
3427 | /* | |
3428 | * 'pipe_command()' - Pipe the output of a command to the remote client. | |
3429 | */ | |
3430 | ||
3431 | static int /* O - Process ID */ | |
3432 | pipe_command(cupsd_client_t *con, /* I - Client connection */ | |
3433 | int infile, /* I - Standard input for command */ | |
3434 | int *outfile, /* O - Standard output for command */ | |
3435 | char *command, /* I - Command to run */ | |
3436 | char *options, /* I - Options for command */ | |
3437 | int root) /* I - Run as root? */ | |
3438 | { | |
3439 | int i; /* Looping var */ | |
3440 | int pid; /* Process ID */ | |
b423cd4c | 3441 | char *commptr, /* Command string pointer */ |
3442 | commch; /* Command string character */ | |
ef416fc2 | 3443 | char *uriptr; /* URI string pointer */ |
3444 | int fds[2]; /* Pipe FDs */ | |
3445 | int argc; /* Number of arguments */ | |
3446 | int envc; /* Number of environment variables */ | |
3447 | char argbuf[10240], /* Argument buffer */ | |
3448 | *argv[100], /* Argument strings */ | |
b94498cf | 3449 | *envp[MAX_ENV + 20]; /* Environment variables */ |
c7017ecc | 3450 | char auth_type[256], /* AUTH_TYPE environment variable */ |
b94498cf | 3451 | content_length[1024], /* CONTENT_LENGTH environment variable */ |
ef416fc2 | 3452 | content_type[1024], /* CONTENT_TYPE environment variable */ |
3453 | http_cookie[32768], /* HTTP_COOKIE environment variable */ | |
f7deaa1a | 3454 | http_referer[1024], /* HTTP_REFERER environment variable */ |
ef416fc2 | 3455 | http_user_agent[1024], /* HTTP_USER_AGENT environment variable */ |
3456 | lang[1024], /* LANG environment variable */ | |
b423cd4c | 3457 | path_info[1024], /* PATH_INFO environment variable */ |
ef416fc2 | 3458 | remote_addr[1024], /* REMOTE_ADDR environment variable */ |
3459 | remote_host[1024], /* REMOTE_HOST environment variable */ | |
3460 | remote_user[1024], /* REMOTE_USER environment variable */ | |
b94498cf | 3461 | script_filename[1024], /* SCRIPT_FILENAME environment variable */ |
ef416fc2 | 3462 | script_name[1024], /* SCRIPT_NAME environment variable */ |
3463 | server_name[1024], /* SERVER_NAME environment variable */ | |
3464 | server_port[1024]; /* SERVER_PORT environment variable */ | |
7dfedb92 | 3465 | ipp_attribute_t *attr; /* attributes-natural-language attribute */ |
ef416fc2 | 3466 | |
3467 | ||
3468 | /* | |
3469 | * Parse a copy of the options string, which is of the form: | |
3470 | * | |
b423cd4c | 3471 | * argument+argument+argument |
3472 | * ?argument+argument+argument | |
3473 | * param=value¶m=value | |
3474 | * ?param=value¶m=value | |
3475 | * /name?argument+argument+argument | |
3476 | * /name?param=value¶m=value | |
ef416fc2 | 3477 | * |
3478 | * If the string contains an "=" character after the initial name, | |
3479 | * then we treat it as a HTTP GET form request and make a copy of | |
3480 | * the remaining string for the environment variable. | |
3481 | * | |
3482 | * The string is always parsed out as command-line arguments, to | |
3483 | * be consistent with Apache... | |
3484 | */ | |
3485 | ||
996acce8 MS |
3486 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
3487 | "pipe_command infile=%d, outfile=%p, " | |
3488 | "command=\"%s\", options=\"%s\", root=%d", | |
3489 | infile, outfile, command, | |
3490 | options ? options : "(null)", root); | |
ef416fc2 | 3491 | |
b86bc4cf | 3492 | argv[0] = command; |
ef416fc2 | 3493 | |
b423cd4c | 3494 | if (options) |
13713f49 | 3495 | strlcpy(argbuf, options, sizeof(argbuf)); |
b423cd4c | 3496 | else |
3497 | argbuf[0] = '\0'; | |
3498 | ||
3499 | if (argbuf[0] == '/') | |
ef416fc2 | 3500 | { |
3501 | /* | |
b423cd4c | 3502 | * Found some trailing path information, set PATH_INFO... |
ef416fc2 | 3503 | */ |
3504 | ||
b423cd4c | 3505 | if ((commptr = strchr(argbuf, '?')) == NULL) |
3506 | commptr = argbuf + strlen(argbuf); | |
ef416fc2 | 3507 | |
b423cd4c | 3508 | commch = *commptr; |
3509 | *commptr = '\0'; | |
3510 | snprintf(path_info, sizeof(path_info), "PATH_INFO=%s", argbuf); | |
3511 | *commptr = commch; | |
3512 | } | |
3513 | else | |
3514 | { | |
3515 | commptr = argbuf; | |
3516 | path_info[0] = '\0'; | |
b94498cf | 3517 | |
3518 | if (*commptr == ' ') | |
3519 | commptr ++; | |
b423cd4c | 3520 | } |
ef416fc2 | 3521 | |
cb7f98ee | 3522 | if (*commptr == '?' && con->operation == HTTP_STATE_GET && !con->query_string) |
b423cd4c | 3523 | { |
3524 | commptr ++; | |
b86bc4cf | 3525 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", commptr); |
b423cd4c | 3526 | } |
ef416fc2 | 3527 | |
b423cd4c | 3528 | argc = 1; |
ef416fc2 | 3529 | |
b423cd4c | 3530 | if (*commptr) |
3531 | { | |
3532 | argv[argc ++] = commptr; | |
ef416fc2 | 3533 | |
b423cd4c | 3534 | for (; *commptr && argc < 99; commptr ++) |
3535 | { | |
ef416fc2 | 3536 | /* |
b423cd4c | 3537 | * Break arguments whenever we see a + or space... |
ef416fc2 | 3538 | */ |
3539 | ||
b423cd4c | 3540 | if (*commptr == ' ' || *commptr == '+') |
3541 | { | |
3542 | while (*commptr == ' ' || *commptr == '+') | |
3543 | *commptr++ = '\0'; | |
ef416fc2 | 3544 | |
b423cd4c | 3545 | /* |
3546 | * If we don't have a blank string, save it as another argument... | |
3547 | */ | |
ef416fc2 | 3548 | |
b423cd4c | 3549 | if (*commptr) |
3550 | { | |
3551 | argv[argc] = commptr; | |
3552 | argc ++; | |
3553 | } | |
3554 | else | |
3555 | break; | |
3556 | } | |
3557 | else if (*commptr == '%' && isxdigit(commptr[1] & 255) && | |
3558 | isxdigit(commptr[2] & 255)) | |
3559 | { | |
3560 | /* | |
3561 | * Convert the %xx notation to the individual character. | |
3562 | */ | |
ef416fc2 | 3563 | |
b423cd4c | 3564 | if (commptr[1] >= '0' && commptr[1] <= '9') |
7e86f2f6 | 3565 | *commptr = (char)((commptr[1] - '0') << 4); |
b423cd4c | 3566 | else |
7e86f2f6 | 3567 | *commptr = (char)((tolower(commptr[1]) - 'a' + 10) << 4); |
ef416fc2 | 3568 | |
b423cd4c | 3569 | if (commptr[2] >= '0' && commptr[2] <= '9') |
3570 | *commptr |= commptr[2] - '0'; | |
3571 | else | |
3572 | *commptr |= tolower(commptr[2]) - 'a' + 10; | |
ef416fc2 | 3573 | |
b423cd4c | 3574 | _cups_strcpy(commptr + 1, commptr + 3); |
ef416fc2 | 3575 | |
b423cd4c | 3576 | /* |
3577 | * Check for a %00 and break if that is the case... | |
3578 | */ | |
ef416fc2 | 3579 | |
b423cd4c | 3580 | if (!*commptr) |
3581 | break; | |
3582 | } | |
ef416fc2 | 3583 | } |
3584 | } | |
3585 | ||
3586 | argv[argc] = NULL; | |
3587 | ||
ef416fc2 | 3588 | /* |
3589 | * Setup the environment variables as needed... | |
3590 | */ | |
3591 | ||
b94498cf | 3592 | if (con->username[0]) |
3593 | { | |
c7017ecc | 3594 | snprintf(auth_type, sizeof(auth_type), "AUTH_TYPE=%s", |
996acce8 | 3595 | httpGetField(con->http, HTTP_FIELD_AUTHORIZATION)); |
b94498cf | 3596 | |
3597 | if ((uriptr = strchr(auth_type + 10, ' ')) != NULL) | |
3598 | *uriptr = '\0'; | |
3599 | } | |
3600 | else | |
3601 | auth_type[0] = '\0'; | |
3602 | ||
7dfedb92 MS |
3603 | if (con->request && |
3604 | (attr = ippFindAttribute(con->request, "attributes-natural-language", | |
3605 | IPP_TAG_LANGUAGE)) != NULL) | |
3606 | { | |
3607 | switch (strlen(attr->values[0].string.text)) | |
3608 | { | |
3609 | default : | |
3610 | /* | |
3611 | * This is an unknown or badly formatted language code; use | |
3612 | * the POSIX locale... | |
3613 | */ | |
3614 | ||
5a9febac | 3615 | strlcpy(lang, "LANG=C", sizeof(lang)); |
7dfedb92 MS |
3616 | break; |
3617 | ||
3618 | case 2 : | |
3619 | /* | |
3620 | * Just the language code (ll)... | |
3621 | */ | |
3622 | ||
3623 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", | |
3624 | attr->values[0].string.text); | |
3625 | break; | |
3626 | ||
3627 | case 5 : | |
3628 | /* | |
3629 | * Language and country code (ll-cc)... | |
3630 | */ | |
3631 | ||
3632 | snprintf(lang, sizeof(lang), "LANG=%c%c_%c%c.UTF8", | |
3633 | attr->values[0].string.text[0], | |
3634 | attr->values[0].string.text[1], | |
3635 | toupper(attr->values[0].string.text[3] & 255), | |
3636 | toupper(attr->values[0].string.text[4] & 255)); | |
3637 | break; | |
3638 | } | |
3639 | } | |
3640 | else if (con->language) | |
3641 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", con->language->language); | |
ef416fc2 | 3642 | else |
5a9febac | 3643 | strlcpy(lang, "LANG=C", sizeof(lang)); |
ef416fc2 | 3644 | |
5a9febac | 3645 | strlcpy(remote_addr, "REMOTE_ADDR=", sizeof(remote_addr)); |
5ec1fd3d | 3646 | httpAddrString(httpGetAddress(con->http), remote_addr + 12, |
ef416fc2 | 3647 | sizeof(remote_addr) - 12); |
3648 | ||
3649 | snprintf(remote_host, sizeof(remote_host), "REMOTE_HOST=%s", | |
5ec1fd3d | 3650 | httpGetHostname(con->http, NULL, 0)); |
ef416fc2 | 3651 | |
3652 | snprintf(script_name, sizeof(script_name), "SCRIPT_NAME=%s", con->uri); | |
3653 | if ((uriptr = strchr(script_name, '?')) != NULL) | |
3654 | *uriptr = '\0'; | |
3655 | ||
b94498cf | 3656 | snprintf(script_filename, sizeof(script_filename), "SCRIPT_FILENAME=%s%s", |
3657 | DocumentRoot, script_name + 12); | |
3658 | ||
ef416fc2 | 3659 | sprintf(server_port, "SERVER_PORT=%d", con->serverport); |
3660 | ||
5ec1fd3d | 3661 | if (httpGetField(con->http, HTTP_FIELD_HOST)[0]) |
0268488e MS |
3662 | { |
3663 | char *nameptr; /* Pointer to ":port" */ | |
3664 | ||
3665 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
5ec1fd3d | 3666 | httpGetField(con->http, HTTP_FIELD_HOST)); |
0268488e MS |
3667 | if ((nameptr = strrchr(server_name, ':')) != NULL && !strchr(nameptr, ']')) |
3668 | *nameptr = '\0'; /* Strip trailing ":port" */ | |
3669 | } | |
3670 | else | |
3671 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
3672 | con->servername); | |
ef416fc2 | 3673 | |
3674 | envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0]))); | |
3675 | ||
b94498cf | 3676 | if (auth_type[0]) |
3677 | envp[envc ++] = auth_type; | |
3678 | ||
ef416fc2 | 3679 | envp[envc ++] = lang; |
3680 | envp[envc ++] = "REDIRECT_STATUS=1"; | |
b94498cf | 3681 | envp[envc ++] = "GATEWAY_INTERFACE=CGI/1.1"; |
ef416fc2 | 3682 | envp[envc ++] = server_name; |
3683 | envp[envc ++] = server_port; | |
3684 | envp[envc ++] = remote_addr; | |
3685 | envp[envc ++] = remote_host; | |
3686 | envp[envc ++] = script_name; | |
b94498cf | 3687 | envp[envc ++] = script_filename; |
ef416fc2 | 3688 | |
b423cd4c | 3689 | if (path_info[0]) |
3690 | envp[envc ++] = path_info; | |
3691 | ||
ef416fc2 | 3692 | if (con->username[0]) |
3693 | { | |
3694 | snprintf(remote_user, sizeof(remote_user), "REMOTE_USER=%s", con->username); | |
3695 | ||
3696 | envp[envc ++] = remote_user; | |
3697 | } | |
3698 | ||
d21dc0ed | 3699 | if (httpGetVersion(con->http) == HTTP_VERSION_1_1) |
ef416fc2 | 3700 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.1"; |
d21dc0ed | 3701 | else if (httpGetVersion(con->http) == HTTP_VERSION_1_0) |
ef416fc2 | 3702 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.0"; |
3703 | else | |
3704 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/0.9"; | |
3705 | ||
d21dc0ed | 3706 | if (httpGetCookie(con->http)) |
ef416fc2 | 3707 | { |
3708 | snprintf(http_cookie, sizeof(http_cookie), "HTTP_COOKIE=%s", | |
d21dc0ed | 3709 | httpGetCookie(con->http)); |
ef416fc2 | 3710 | envp[envc ++] = http_cookie; |
3711 | } | |
3712 | ||
5ec1fd3d | 3713 | if (httpGetField(con->http, HTTP_FIELD_USER_AGENT)[0]) |
ef416fc2 | 3714 | { |
3715 | snprintf(http_user_agent, sizeof(http_user_agent), "HTTP_USER_AGENT=%s", | |
5ec1fd3d | 3716 | httpGetField(con->http, HTTP_FIELD_USER_AGENT)); |
ef416fc2 | 3717 | envp[envc ++] = http_user_agent; |
3718 | } | |
3719 | ||
5ec1fd3d | 3720 | if (httpGetField(con->http, HTTP_FIELD_REFERER)[0]) |
f7deaa1a | 3721 | { |
3722 | snprintf(http_referer, sizeof(http_referer), "HTTP_REFERER=%s", | |
5ec1fd3d | 3723 | httpGetField(con->http, HTTP_FIELD_REFERER)); |
f7deaa1a | 3724 | envp[envc ++] = http_referer; |
3725 | } | |
3726 | ||
cb7f98ee | 3727 | if (con->operation == HTTP_STATE_GET) |
ef416fc2 | 3728 | { |
ef416fc2 | 3729 | envp[envc ++] = "REQUEST_METHOD=GET"; |
3730 | ||
b86bc4cf | 3731 | if (con->query_string) |
ef416fc2 | 3732 | { |
3733 | /* | |
3734 | * Add GET form variables after ?... | |
3735 | */ | |
3736 | ||
b86bc4cf | 3737 | envp[envc ++] = con->query_string; |
ef416fc2 | 3738 | } |
3dfe78b3 MS |
3739 | else |
3740 | envp[envc ++] = "QUERY_STRING="; | |
ef416fc2 | 3741 | } |
3742 | else | |
3743 | { | |
e1d6a774 | 3744 | sprintf(content_length, "CONTENT_LENGTH=" CUPS_LLFMT, |
3745 | CUPS_LLCAST con->bytes); | |
ef416fc2 | 3746 | snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s", |
5ec1fd3d | 3747 | httpGetField(con->http, HTTP_FIELD_CONTENT_TYPE)); |
ef416fc2 | 3748 | |
3749 | envp[envc ++] = "REQUEST_METHOD=POST"; | |
3750 | envp[envc ++] = content_length; | |
3751 | envp[envc ++] = content_type; | |
3752 | } | |
3753 | ||
3754 | /* | |
3755 | * Tell the CGI if we are using encryption... | |
3756 | */ | |
3757 | ||
d21dc0ed | 3758 | if (httpIsEncrypted(con->http)) |
ef416fc2 | 3759 | envp[envc ++] = "HTTPS=ON"; |
3760 | ||
3761 | /* | |
3762 | * Terminate the environment array... | |
3763 | */ | |
3764 | ||
3765 | envp[envc] = NULL; | |
3766 | ||
38e73f87 | 3767 | if (LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 3768 | { |
3769 | for (i = 0; i < argc; i ++) | |
38e73f87 MS |
3770 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
3771 | "[CGI] argv[%d] = \"%s\"", i, argv[i]); | |
ef416fc2 | 3772 | for (i = 0; i < envc; i ++) |
38e73f87 MS |
3773 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
3774 | "[CGI] envp[%d] = \"%s\"", i, envp[i]); | |
ef416fc2 | 3775 | } |
3776 | ||
3777 | /* | |
3778 | * Create a pipe for the output... | |
3779 | */ | |
3780 | ||
3781 | if (cupsdOpenPipe(fds)) | |
3782 | { | |
38e73f87 | 3783 | cupsdLogMessage(CUPSD_LOG_ERROR, "[CGI] Unable to create pipe for %s - %s", |
ef416fc2 | 3784 | argv[0], strerror(errno)); |
3785 | return (0); | |
3786 | } | |
3787 | ||
3788 | /* | |
3789 | * Then execute the command... | |
3790 | */ | |
3791 | ||
3792 | if (cupsdStartProcess(command, argv, envp, infile, fds[1], CGIPipes[1], | |
38e73f87 | 3793 | -1, -1, root, DefaultProfile, NULL, &pid) < 0) |
ef416fc2 | 3794 | { |
3795 | /* | |
3796 | * Error - can't fork! | |
3797 | */ | |
3798 | ||
38e73f87 | 3799 | cupsdLogMessage(CUPSD_LOG_ERROR, "[CGI] Unable to start %s - %s", argv[0], |
ef416fc2 | 3800 | strerror(errno)); |
3801 | ||
3802 | cupsdClosePipe(fds); | |
3803 | pid = 0; | |
3804 | } | |
3805 | else | |
3806 | { | |
3807 | /* | |
3808 | * Fork successful - return the PID... | |
3809 | */ | |
3810 | ||
3811 | if (con->username[0]) | |
0fa6c7fa | 3812 | cupsdAddCert(pid, con->username, con->type); |
ef416fc2 | 3813 | |
38e73f87 | 3814 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[CGI] Started %s (PID %d)", command, pid); |
ef416fc2 | 3815 | |
3816 | *outfile = fds[0]; | |
3817 | close(fds[1]); | |
3818 | } | |
3819 | ||
ef416fc2 | 3820 | return (pid); |
3821 | } | |
3822 | ||
3823 | ||
e07d4801 MS |
3824 | /* |
3825 | * 'valid_host()' - Is the Host: field valid? | |
3826 | */ | |
3827 | ||
3828 | static int /* O - 1 if valid, 0 if not */ | |
3829 | valid_host(cupsd_client_t *con) /* I - Client connection */ | |
3830 | { | |
3831 | cupsd_alias_t *a; /* Current alias */ | |
3832 | cupsd_netif_t *netif; /* Current network interface */ | |
f2534050 MS |
3833 | const char *end; /* End character */ |
3834 | char *ptr; /* Pointer into host value */ | |
e07d4801 MS |
3835 | |
3836 | ||
f2534050 MS |
3837 | /* |
3838 | * Copy the Host: header for later use... | |
3839 | */ | |
3840 | ||
5ec1fd3d | 3841 | strlcpy(con->clientname, httpGetField(con->http, HTTP_FIELD_HOST), |
f2534050 MS |
3842 | sizeof(con->clientname)); |
3843 | if ((ptr = strrchr(con->clientname, ':')) != NULL && !strchr(ptr, ']')) | |
3844 | { | |
3845 | *ptr++ = '\0'; | |
3846 | con->clientport = atoi(ptr); | |
3847 | } | |
3848 | else | |
3849 | con->clientport = con->serverport; | |
3850 | ||
3851 | /* | |
3852 | * Then validate... | |
3853 | */ | |
e07d4801 | 3854 | |
5ec1fd3d | 3855 | if (httpAddrLocalhost(httpGetAddress(con->http))) |
e07d4801 MS |
3856 | { |
3857 | /* | |
3858 | * Only allow "localhost" or the equivalent IPv4 or IPv6 numerical | |
3859 | * addresses when accessing CUPS via the loopback interface... | |
3860 | */ | |
3861 | ||
f2534050 MS |
3862 | return (!_cups_strcasecmp(con->clientname, "localhost") || |
3863 | !_cups_strcasecmp(con->clientname, "localhost.") || | |
e07d4801 | 3864 | #ifdef __linux |
f2534050 | 3865 | !_cups_strcasecmp(con->clientname, "localhost.localdomain") || |
e07d4801 | 3866 | #endif /* __linux */ |
f2534050 MS |
3867 | !strcmp(con->clientname, "127.0.0.1") || |
3868 | !strcmp(con->clientname, "[::1]")); | |
e07d4801 MS |
3869 | } |
3870 | ||
37e7e6e0 | 3871 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
e07d4801 MS |
3872 | /* |
3873 | * Check if the hostname is something.local (Bonjour); if so, allow it. | |
3874 | */ | |
3875 | ||
f2534050 MS |
3876 | if ((end = strrchr(con->clientname, '.')) != NULL && end > con->clientname && |
3877 | !end[1]) | |
a29fd7dd MS |
3878 | { |
3879 | /* | |
3880 | * "." on end, work back to second-to-last "."... | |
3881 | */ | |
f2534050 MS |
3882 | |
3883 | for (end --; end > con->clientname && *end != '.'; end --); | |
a29fd7dd MS |
3884 | } |
3885 | ||
3886 | if (end && (!_cups_strcasecmp(end, ".local") || | |
f2534050 | 3887 | !_cups_strcasecmp(end, ".local."))) |
e07d4801 | 3888 | return (1); |
37e7e6e0 | 3889 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
e07d4801 MS |
3890 | |
3891 | /* | |
3892 | * Check if the hostname is an IP address... | |
3893 | */ | |
3894 | ||
f2534050 | 3895 | if (isdigit(con->clientname[0] & 255) || con->clientname[0] == '[') |
e07d4801 MS |
3896 | { |
3897 | /* | |
3898 | * Possible IPv4/IPv6 address... | |
3899 | */ | |
3900 | ||
e07d4801 MS |
3901 | http_addrlist_t *addrlist; /* List of addresses */ |
3902 | ||
3903 | ||
f2534050 | 3904 | if ((addrlist = httpAddrGetList(con->clientname, AF_UNSPEC, NULL)) != NULL) |
e07d4801 MS |
3905 | { |
3906 | /* | |
3907 | * Good IPv4/IPv6 address... | |
3908 | */ | |
3909 | ||
3910 | httpAddrFreeList(addrlist); | |
3911 | return (1); | |
3912 | } | |
3913 | } | |
3914 | ||
3915 | /* | |
3916 | * Check for (alias) name matches... | |
3917 | */ | |
3918 | ||
3919 | for (a = (cupsd_alias_t *)cupsArrayFirst(ServerAlias); | |
3920 | a; | |
3921 | a = (cupsd_alias_t *)cupsArrayNext(ServerAlias)) | |
3922 | { | |
3923 | /* | |
3924 | * "ServerAlias *" allows all host values through... | |
3925 | */ | |
3926 | ||
3927 | if (!strcmp(a->name, "*")) | |
3928 | return (1); | |
3929 | ||
f2534050 | 3930 | if (!_cups_strncasecmp(con->clientname, a->name, a->namelen)) |
e07d4801 MS |
3931 | { |
3932 | /* | |
f2534050 | 3933 | * Prefix matches; check the character at the end - it must be "." or nul. |
e07d4801 MS |
3934 | */ |
3935 | ||
f2534050 | 3936 | end = con->clientname + a->namelen; |
e07d4801 | 3937 | |
f2534050 | 3938 | if (!*end || (*end == '.' && !end[1])) |
e07d4801 MS |
3939 | return (1); |
3940 | } | |
3941 | } | |
3942 | ||
37e7e6e0 | 3943 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
e07d4801 MS |
3944 | for (a = (cupsd_alias_t *)cupsArrayFirst(DNSSDAlias); |
3945 | a; | |
3946 | a = (cupsd_alias_t *)cupsArrayNext(DNSSDAlias)) | |
3947 | { | |
3948 | /* | |
3949 | * "ServerAlias *" allows all host values through... | |
3950 | */ | |
3951 | ||
3952 | if (!strcmp(a->name, "*")) | |
3953 | return (1); | |
3954 | ||
f2534050 | 3955 | if (!_cups_strncasecmp(con->clientname, a->name, a->namelen)) |
e07d4801 MS |
3956 | { |
3957 | /* | |
f2534050 | 3958 | * Prefix matches; check the character at the end - it must be "." or nul. |
e07d4801 MS |
3959 | */ |
3960 | ||
f2534050 | 3961 | end = con->clientname + a->namelen; |
e07d4801 | 3962 | |
f2534050 | 3963 | if (!*end || (*end == '.' && !end[1])) |
e07d4801 MS |
3964 | return (1); |
3965 | } | |
3966 | } | |
37e7e6e0 | 3967 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
e07d4801 MS |
3968 | |
3969 | /* | |
3970 | * Check for interface hostname matches... | |
3971 | */ | |
3972 | ||
3973 | for (netif = (cupsd_netif_t *)cupsArrayFirst(NetIFList); | |
3974 | netif; | |
3975 | netif = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
3976 | { | |
f2534050 | 3977 | if (!_cups_strncasecmp(con->clientname, netif->hostname, netif->hostlen)) |
e07d4801 MS |
3978 | { |
3979 | /* | |
f2534050 | 3980 | * Prefix matches; check the character at the end - it must be "." or nul. |
e07d4801 MS |
3981 | */ |
3982 | ||
f2534050 | 3983 | end = con->clientname + netif->hostlen; |
e07d4801 | 3984 | |
f2534050 | 3985 | if (!*end || (*end == '.' && !end[1])) |
e07d4801 MS |
3986 | return (1); |
3987 | } | |
3988 | } | |
3989 | ||
3990 | return (0); | |
3991 | } | |
3992 | ||
3993 | ||
ef416fc2 | 3994 | /* |
a74454a7 | 3995 | * 'write_file()' - Send a file via HTTP. |
e1d6a774 | 3996 | */ |
3997 | ||
3998 | static int /* O - 0 on failure, 1 on success */ | |
a74454a7 | 3999 | write_file(cupsd_client_t *con, /* I - Client connection */ |
4000 | http_status_t code, /* I - HTTP status */ | |
4001 | char *filename, /* I - Filename */ | |
4002 | char *type, /* I - File type */ | |
4003 | struct stat *filestats) /* O - File information */ | |
e1d6a774 | 4004 | { |
4005 | con->file = open(filename, O_RDONLY); | |
4006 | ||
996acce8 MS |
4007 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, |
4008 | "write_file code=%d, filename=\"%s\" (%d), " | |
4009 | "type=\"%s\", filestats=%p", | |
4010 | code, filename, con->file, type ? type : "(null)", filestats); | |
e1d6a774 | 4011 | |
4012 | if (con->file < 0) | |
4013 | return (0); | |
4014 | ||
4015 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
4016 | ||
dfc45c1b MS |
4017 | con->pipe_pid = 0; |
4018 | con->sent_header = 1; | |
e1d6a774 | 4019 | |
a73ca01e MS |
4020 | httpClearFields(con->http); |
4021 | ||
7e86f2f6 | 4022 | httpSetLength(con->http, (size_t)filestats->st_size); |
e1d6a774 | 4023 | |
e200616a MS |
4024 | httpSetField(con->http, HTTP_FIELD_LAST_MODIFIED, |
4025 | httpGetDateString(filestats->st_mtime)); | |
e1d6a774 | 4026 | |
e200616a | 4027 | if (!cupsdSendHeader(con, code, type, CUPSD_AUTH_NONE)) |
07725fee | 4028 | return (0); |
d09495fa | 4029 | |
43dcaf3b | 4030 | cupsdAddSelect(httpGetFd(con->http), NULL, (cupsd_selfunc_t)cupsdWriteClient, con); |
e1d6a774 | 4031 | |
996acce8 | 4032 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "Sending file."); |
1bc82dd9 | 4033 | |
e1d6a774 | 4034 | return (1); |
4035 | } | |
4036 | ||
4037 | ||
4038 | /* | |
f899b121 | 4039 | * 'write_pipe()' - Flag that data is available on the CGI pipe. |
4040 | */ | |
4041 | ||
4042 | static void | |
4043 | write_pipe(cupsd_client_t *con) /* I - Client connection */ | |
4044 | { | |
996acce8 MS |
4045 | cupsdLogClient(con, CUPSD_LOG_DEBUG2, "write_pipe CGI output on fd %d", |
4046 | con->file); | |
f899b121 | 4047 | |
4048 | con->file_ready = 1; | |
4049 | ||
4050 | cupsdRemoveSelect(con->file); | |
996acce8 | 4051 | cupsdAddSelect(httpGetFd(con->http), NULL, (cupsd_selfunc_t)cupsdWriteClient, con); |
1bc82dd9 | 4052 | |
996acce8 | 4053 | cupsdLogClient(con, CUPSD_LOG_DEBUG, "CGI data ready to be sent."); |
f899b121 | 4054 | } |
4055 | ||
4056 | ||
4057 | /* | |
f2d18633 | 4058 | * End of "$Id$". |
ef416fc2 | 4059 | */ |