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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: client.c 7950 2008-09-17 00:21:59Z mike $" |
ef416fc2 | 3 | * |
10d09e33 | 4 | * Client routines for the CUPS scheduler. |
ef416fc2 | 5 | * |
82cc1f9a | 6 | * Copyright 2007-2012 by Apple Inc. |
f7deaa1a | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
8 | * | |
9 | * This file contains Kerberos support code, copyright 2006 by | |
10 | * Jelmer Vernooij. | |
ef416fc2 | 11 | * |
12 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 13 | * property of Apple Inc. and are protected by Federal copyright |
14 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
15 | * which should have been included with this file. If this file is | |
16 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 17 | * |
18 | * Contents: | |
19 | * | |
82cc1f9a MS |
20 | * cupsdAcceptClient() - Accept a new client. |
21 | * cupsdCloseAllClients() - Close all remote clients immediately. | |
22 | * cupsdCloseClient() - Close a remote client. | |
23 | * cupsdFlushHeader() - Flush the header fields to the client. | |
24 | * cupsdReadClient() - Read data from a client. | |
25 | * cupsdSendCommand() - Send output from a command via HTTP. | |
26 | * cupsdSendError() - Send an error message via HTTP. | |
27 | * cupsdSendHeader() - Send an HTTP request. | |
28 | * cupsdUpdateCGI() - Read status messages from CGI scripts and | |
29 | * programs. | |
30 | * cupsdWriteClient() - Write data to a client as needed. | |
31 | * check_if_modified() - Decode an "If-Modified-Since" line. | |
32 | * compare_clients() - Compare two client connections. | |
33 | * data_ready() - Check whether data is available from a client. | |
34 | * get_file() - Get a filename and state info. | |
35 | * install_conf_file() - Install a configuration file. | |
36 | * is_cgi() - Is the resource a CGI script/program? | |
37 | * is_path_absolute() - Is a path absolute and free of relative elements | |
38 | * (i.e. ".."). | |
39 | * pipe_command() - Pipe the output of a command to the remote | |
40 | * client. | |
41 | * valid_host() - Is the Host: field valid? | |
42 | * write_file() - Send a file via HTTP. | |
43 | * write_pipe() - Flag that data is available on the CGI pipe. | |
ef416fc2 | 44 | */ |
45 | ||
46 | /* | |
47 | * Include necessary headers... | |
48 | */ | |
49 | ||
ef416fc2 | 50 | #include "cupsd.h" |
51 | ||
749b1e90 MS |
52 | #ifdef HAVE_TCPD_H |
53 | # include <tcpd.h> | |
54 | #endif /* HAVE_TCPD_H */ | |
55 | ||
ef416fc2 | 56 | |
85dda01c MS |
57 | /* |
58 | * Local globals... | |
59 | */ | |
60 | ||
61 | static const char * const http_states[] = | |
62 | { /* HTTP state strings */ | |
63 | "HTTP_WAITING", | |
64 | "HTTP_OPTIONS", | |
65 | "HTTP_GET", | |
66 | "HTTP_GET_SEND", | |
67 | "HTTP_HEAD", | |
68 | "HTTP_POST", | |
69 | "HTTP_POST_RECV", | |
70 | "HTTP_POST_SEND", | |
71 | "HTTP_PUT", | |
72 | "HTTP_PUT_RECV", | |
73 | "HTTP_DELETE", | |
74 | "HTTP_TRACE", | |
75 | "HTTP_CLOSE", | |
76 | "HTTP_STATUS" | |
77 | }; | |
78 | static const char * const ipp_states[] = | |
79 | { /* IPP state strings */ | |
80 | "IPP_IDLE", | |
81 | "IPP_HEADER", | |
82 | "IPP_ATTRIBUTE", | |
83 | "IPP_DATA" | |
84 | }; | |
85 | ||
86 | ||
ef416fc2 | 87 | /* |
88 | * Local functions... | |
89 | */ | |
90 | ||
91 | static int check_if_modified(cupsd_client_t *con, | |
92 | struct stat *filestats); | |
3dfe78b3 MS |
93 | static int compare_clients(cupsd_client_t *a, cupsd_client_t *b, |
94 | void *data); | |
ee571f26 | 95 | static int data_ready(cupsd_client_t *con); |
f7deaa1a | 96 | static char *get_file(cupsd_client_t *con, struct stat *filestats, |
ef416fc2 | 97 | char *filename, int len); |
98 | static http_status_t install_conf_file(cupsd_client_t *con); | |
e1d6a774 | 99 | static int is_cgi(cupsd_client_t *con, const char *filename, |
100 | struct stat *filestats, mime_type_t *type); | |
ef416fc2 | 101 | static int is_path_absolute(const char *path); |
102 | static int pipe_command(cupsd_client_t *con, int infile, int *outfile, | |
103 | char *command, char *options, int root); | |
e07d4801 | 104 | static int valid_host(cupsd_client_t *con); |
a74454a7 | 105 | static int write_file(cupsd_client_t *con, http_status_t code, |
106 | char *filename, char *type, | |
107 | struct stat *filestats); | |
f899b121 | 108 | static void write_pipe(cupsd_client_t *con); |
ef416fc2 | 109 | |
110 | ||
111 | /* | |
112 | * 'cupsdAcceptClient()' - Accept a new client. | |
113 | */ | |
114 | ||
115 | void | |
116 | cupsdAcceptClient(cupsd_listener_t *lis)/* I - Listener socket */ | |
117 | { | |
ef416fc2 | 118 | int count; /* Count of connections on a host */ |
119 | int val; /* Parameter value */ | |
bd7854cb | 120 | cupsd_client_t *con, /* New client pointer */ |
121 | *tempcon; /* Temporary client pointer */ | |
ef416fc2 | 122 | http_addrlist_t *addrlist, /* List of adddresses for host */ |
123 | *addr; /* Current address */ | |
124 | socklen_t addrlen; /* Length of address */ | |
125 | char *hostname; /* Hostname for address */ | |
126 | http_addr_t temp; /* Temporary address variable */ | |
127 | static time_t last_dos = 0; /* Time of last DoS attack */ | |
749b1e90 MS |
128 | #ifdef HAVE_TCPD_H |
129 | struct request_info wrap_req; /* TCP wrappers request information */ | |
130 | #endif /* HAVE_TCPD_H */ | |
ef416fc2 | 131 | |
132 | ||
133 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
b9faaae1 | 134 | "cupsdAcceptClient(lis=%p(%d)) Clients=%d", |
bd7854cb | 135 | lis, lis->fd, cupsArrayCount(Clients)); |
ef416fc2 | 136 | |
137 | /* | |
138 | * Make sure we don't have a full set of clients already... | |
139 | */ | |
140 | ||
bd7854cb | 141 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 142 | return; |
143 | ||
144 | /* | |
145 | * Get a pointer to the next available client... | |
146 | */ | |
147 | ||
bd7854cb | 148 | if (!Clients) |
149 | Clients = cupsArrayNew(NULL, NULL); | |
150 | ||
151 | if (!Clients) | |
91c84a35 MS |
152 | { |
153 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3dfe78b3 MS |
154 | "Unable to allocate memory for clients array!"); |
155 | cupsdPauseListening(); | |
156 | return; | |
157 | } | |
158 | ||
159 | if (!ActiveClients) | |
160 | ActiveClients = cupsArrayNew((cups_array_func_t)compare_clients, NULL); | |
161 | ||
162 | if (!ActiveClients) | |
163 | { | |
164 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
165 | "Unable to allocate memory for active clients array!"); | |
91c84a35 | 166 | cupsdPauseListening(); |
bd7854cb | 167 | return; |
91c84a35 | 168 | } |
bd7854cb | 169 | |
91c84a35 MS |
170 | if ((con = calloc(1, sizeof(cupsd_client_t))) == NULL) |
171 | { | |
172 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to allocate memory for client!"); | |
173 | cupsdPauseListening(); | |
174 | return; | |
175 | } | |
ef416fc2 | 176 | |
85dda01c | 177 | con->file = -1; |
dcb445bc | 178 | con->http.activity = time(NULL); |
85dda01c MS |
179 | con->http.hostaddr = &(con->clientaddr); |
180 | con->http.wait_value = 10000; | |
ef416fc2 | 181 | |
182 | /* | |
183 | * Accept the client and get the remote address... | |
184 | */ | |
185 | ||
186 | addrlen = sizeof(http_addr_t); | |
187 | ||
188 | if ((con->http.fd = accept(lis->fd, (struct sockaddr *)con->http.hostaddr, | |
189 | &addrlen)) < 0) | |
190 | { | |
76cd9e37 MS |
191 | if (errno == ENFILE || errno == EMFILE) |
192 | cupsdPauseListening(); | |
193 | ||
ef416fc2 | 194 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to accept client connection - %s.", |
195 | strerror(errno)); | |
bd7854cb | 196 | free(con); |
76cd9e37 | 197 | |
ef416fc2 | 198 | return; |
199 | } | |
200 | ||
22c9029b MS |
201 | /* |
202 | * Save the connected port number... | |
203 | */ | |
ef416fc2 | 204 | |
22c9029b | 205 | _httpAddrSetPort(con->http.hostaddr, _httpAddrPort(&(lis->address))); |
ef416fc2 | 206 | |
22c9029b MS |
207 | #ifdef AF_INET6 |
208 | /* | |
209 | * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we | |
210 | * can more easily use... | |
211 | */ | |
ef416fc2 | 212 | |
22c9029b MS |
213 | if (lis->address.addr.sa_family == AF_INET6 && |
214 | con->http.hostaddr->ipv6.sin6_addr.s6_addr32[0] == 0 && | |
215 | con->http.hostaddr->ipv6.sin6_addr.s6_addr32[1] == 0 && | |
216 | ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2]) == 0xffff) | |
217 | con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2] = 0; | |
ef416fc2 | 218 | #endif /* AF_INET6 */ |
ef416fc2 | 219 | |
220 | /* | |
221 | * Check the number of clients on the same address... | |
222 | */ | |
223 | ||
bd7854cb | 224 | for (count = 0, tempcon = (cupsd_client_t *)cupsArrayFirst(Clients); |
225 | tempcon; | |
226 | tempcon = (cupsd_client_t *)cupsArrayNext(Clients)) | |
227 | if (httpAddrEqual(tempcon->http.hostaddr, con->http.hostaddr)) | |
ef416fc2 | 228 | { |
229 | count ++; | |
230 | if (count >= MaxClientsPerHost) | |
231 | break; | |
232 | } | |
233 | ||
234 | if (count >= MaxClientsPerHost) | |
235 | { | |
236 | if ((time(NULL) - last_dos) >= 60) | |
237 | { | |
238 | last_dos = time(NULL); | |
239 | cupsdLogMessage(CUPSD_LOG_WARN, | |
bd7854cb | 240 | "Possible DoS attack - more than %d clients connecting " |
241 | "from %s!", | |
749b1e90 MS |
242 | MaxClientsPerHost, |
243 | httpAddrString(con->http.hostaddr, con->http.hostname, | |
244 | sizeof(con->http.hostname))); | |
ef416fc2 | 245 | } |
246 | ||
247 | #ifdef WIN32 | |
248 | closesocket(con->http.fd); | |
249 | #else | |
250 | close(con->http.fd); | |
251 | #endif /* WIN32 */ | |
252 | ||
bd7854cb | 253 | free(con); |
ef416fc2 | 254 | return; |
255 | } | |
256 | ||
257 | /* | |
258 | * Get the hostname or format the IP address as needed... | |
259 | */ | |
260 | ||
261 | if (httpAddrLocalhost(con->http.hostaddr)) | |
262 | { | |
263 | /* | |
264 | * Map accesses from the loopback interface to "localhost"... | |
265 | */ | |
266 | ||
267 | strlcpy(con->http.hostname, "localhost", sizeof(con->http.hostname)); | |
268 | hostname = con->http.hostname; | |
269 | } | |
270 | else | |
271 | { | |
272 | /* | |
273 | * Map accesses from the same host to the server name. | |
274 | */ | |
275 | ||
d1c13e16 | 276 | if (HostNameLookups) |
ef416fc2 | 277 | hostname = httpAddrLookup(con->http.hostaddr, con->http.hostname, |
278 | sizeof(con->http.hostname)); | |
279 | else | |
280 | { | |
281 | hostname = NULL; | |
282 | httpAddrString(con->http.hostaddr, con->http.hostname, | |
283 | sizeof(con->http.hostname)); | |
284 | } | |
285 | } | |
286 | ||
287 | if (hostname == NULL && HostNameLookups == 2) | |
288 | { | |
289 | /* | |
290 | * Can't have an unresolved IP address with double-lookups enabled... | |
291 | */ | |
292 | ||
ef416fc2 | 293 | #ifdef WIN32 |
294 | closesocket(con->http.fd); | |
295 | #else | |
296 | close(con->http.fd); | |
297 | #endif /* WIN32 */ | |
298 | ||
299 | cupsdLogMessage(CUPSD_LOG_WARN, | |
300 | "Name lookup failed - connection from %s closed!", | |
301 | con->http.hostname); | |
bd7854cb | 302 | |
303 | free(con); | |
ef416fc2 | 304 | return; |
305 | } | |
306 | ||
307 | if (HostNameLookups == 2) | |
308 | { | |
309 | /* | |
310 | * Do double lookups as needed... | |
311 | */ | |
312 | ||
749b1e90 MS |
313 | if ((addrlist = httpAddrGetList(con->http.hostname, AF_UNSPEC, NULL)) |
314 | != NULL) | |
ef416fc2 | 315 | { |
316 | /* | |
317 | * See if the hostname maps to the same IP address... | |
318 | */ | |
319 | ||
320 | for (addr = addrlist; addr; addr = addr->next) | |
321 | if (httpAddrEqual(con->http.hostaddr, &(addr->addr))) | |
322 | break; | |
323 | } | |
324 | else | |
325 | addr = NULL; | |
326 | ||
327 | httpAddrFreeList(addrlist); | |
328 | ||
329 | if (!addr) | |
330 | { | |
331 | /* | |
332 | * Can't have a hostname that doesn't resolve to the same IP address | |
333 | * with double-lookups enabled... | |
334 | */ | |
335 | ||
ef416fc2 | 336 | #ifdef WIN32 |
337 | closesocket(con->http.fd); | |
338 | #else | |
339 | close(con->http.fd); | |
340 | #endif /* WIN32 */ | |
341 | ||
342 | cupsdLogMessage(CUPSD_LOG_WARN, | |
343 | "IP lookup failed - connection from %s closed!", | |
344 | con->http.hostname); | |
bd7854cb | 345 | free(con); |
ef416fc2 | 346 | return; |
347 | } | |
348 | } | |
349 | ||
749b1e90 MS |
350 | #ifdef HAVE_TCPD_H |
351 | /* | |
352 | * See if the connection is denied by TCP wrappers... | |
353 | */ | |
354 | ||
355 | request_init(&wrap_req, RQ_DAEMON, "cupsd", RQ_FILE, con->http.fd, NULL); | |
356 | fromhost(&wrap_req); | |
357 | ||
358 | if (!hosts_access(&wrap_req)) | |
359 | { | |
749b1e90 MS |
360 | #ifdef WIN32 |
361 | closesocket(con->http.fd); | |
362 | #else | |
363 | close(con->http.fd); | |
364 | #endif /* WIN32 */ | |
365 | ||
366 | cupsdLogMessage(CUPSD_LOG_WARN, | |
367 | "Connection from %s refused by /etc/hosts.allow and " | |
368 | "/etc/hosts.deny rules.", con->http.hostname); | |
369 | free(con); | |
370 | return; | |
371 | } | |
372 | #endif /* HAVE_TCPD_H */ | |
373 | ||
ef416fc2 | 374 | #ifdef AF_LOCAL |
375 | if (con->http.hostaddr->addr.sa_family == AF_LOCAL) | |
85dda01c | 376 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] Accepted from %s (Domain)", |
ef416fc2 | 377 | con->http.fd, con->http.hostname); |
378 | else | |
379 | #endif /* AF_LOCAL */ | |
85dda01c | 380 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] Accepted from %s:%d (IPv%d)", |
ef416fc2 | 381 | con->http.fd, con->http.hostname, |
22c9029b MS |
382 | _httpAddrPort(con->http.hostaddr), |
383 | _httpAddrFamily(con->http.hostaddr) == AF_INET ? 4 : 6); | |
ef416fc2 | 384 | |
385 | /* | |
386 | * Get the local address the client connected to... | |
387 | */ | |
388 | ||
389 | addrlen = sizeof(temp); | |
390 | if (getsockname(con->http.fd, (struct sockaddr *)&temp, &addrlen)) | |
391 | { | |
392 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get local address - %s", | |
393 | strerror(errno)); | |
394 | ||
5a9febac | 395 | strlcpy(con->servername, "localhost", sizeof(con->servername)); |
ef416fc2 | 396 | con->serverport = LocalPort; |
397 | } | |
22c9029b MS |
398 | #ifdef AF_LOCAL |
399 | else if (_httpAddrFamily(&temp) == AF_LOCAL) | |
400 | { | |
5a9febac | 401 | strlcpy(con->servername, "localhost", sizeof(con->servername)); |
22c9029b MS |
402 | con->serverport = LocalPort; |
403 | } | |
404 | #endif /* AF_LOCAL */ | |
ef416fc2 | 405 | else |
406 | { | |
22c9029b MS |
407 | if (httpAddrLocalhost(&temp)) |
408 | strlcpy(con->servername, "localhost", sizeof(con->servername)); | |
409 | else if (HostNameLookups || RemotePort) | |
410 | httpAddrLookup(&temp, con->servername, sizeof(con->servername)); | |
ef416fc2 | 411 | else |
22c9029b | 412 | httpAddrString(&temp, con->servername, sizeof(con->servername)); |
b19ccc9e | 413 | |
22c9029b | 414 | con->serverport = _httpAddrPort(&(lis->address)); |
ef416fc2 | 415 | } |
416 | ||
dcb445bc MS |
417 | /* |
418 | * Add the connection to the array of active clients... | |
419 | */ | |
420 | ||
bd7854cb | 421 | cupsArrayAdd(Clients, con); |
422 | ||
ef416fc2 | 423 | /* |
b9faaae1 MS |
424 | * Using TCP_NODELAY improves responsiveness, especially on systems with a slow |
425 | * loopback interface. Since we write large buffers when sending print files | |
426 | * and requests there shouldn't be any performance penalty for this... | |
ef416fc2 | 427 | */ |
428 | ||
429 | val = 1; | |
f7deaa1a | 430 | setsockopt(con->http.fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val)); |
ef416fc2 | 431 | |
432 | /* | |
433 | * Close this file on all execs... | |
434 | */ | |
435 | ||
436 | fcntl(con->http.fd, F_SETFD, fcntl(con->http.fd, F_GETFD) | FD_CLOEXEC); | |
437 | ||
438 | /* | |
b9faaae1 | 439 | * Add the socket to the server select. |
ef416fc2 | 440 | */ |
441 | ||
f7deaa1a | 442 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 443 | |
ef416fc2 | 444 | /* |
445 | * Temporarily suspend accept()'s until we lose a client... | |
446 | */ | |
447 | ||
bd7854cb | 448 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 449 | cupsdPauseListening(); |
450 | ||
451 | #ifdef HAVE_SSL | |
452 | /* | |
453 | * See if we are connecting on a secure port... | |
454 | */ | |
455 | ||
456 | if (lis->encryption == HTTP_ENCRYPT_ALWAYS) | |
457 | { | |
458 | /* | |
459 | * https connection; go secure... | |
460 | */ | |
461 | ||
462 | con->http.encryption = HTTP_ENCRYPT_ALWAYS; | |
463 | ||
82cc1f9a | 464 | if (!cupsdStartTLS(con)) |
411affcf | 465 | cupsdCloseClient(con); |
ef416fc2 | 466 | } |
467 | else | |
468 | con->auto_ssl = 1; | |
469 | #endif /* HAVE_SSL */ | |
470 | } | |
471 | ||
472 | ||
473 | /* | |
474 | * 'cupsdCloseAllClients()' - Close all remote clients immediately. | |
475 | */ | |
476 | ||
477 | void | |
478 | cupsdCloseAllClients(void) | |
479 | { | |
bd7854cb | 480 | cupsd_client_t *con; /* Current client */ |
481 | ||
482 | ||
b9faaae1 MS |
483 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdCloseAllClients() Clients=%d", |
484 | cupsArrayCount(Clients)); | |
485 | ||
bd7854cb | 486 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); |
487 | con; | |
488 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
49d87452 MS |
489 | if (cupsdCloseClient(con)) |
490 | cupsdCloseClient(con); | |
ef416fc2 | 491 | } |
492 | ||
493 | ||
494 | /* | |
495 | * 'cupsdCloseClient()' - Close a remote client. | |
496 | */ | |
497 | ||
498 | int /* O - 1 if partial close, 0 if fully closed */ | |
499 | cupsdCloseClient(cupsd_client_t *con) /* I - Client to close */ | |
500 | { | |
501 | int partial; /* Do partial close for SSL? */ | |
502 | #ifdef HAVE_LIBSSL | |
ef416fc2 | 503 | #elif defined(HAVE_GNUTLS) |
89d46774 | 504 | # elif defined(HAVE_CDSASSL) |
ef416fc2 | 505 | #endif /* HAVE_LIBSSL */ |
506 | ||
507 | ||
85dda01c MS |
508 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] Closing connection.", |
509 | con->http.fd); | |
ef416fc2 | 510 | |
511 | /* | |
512 | * Flush pending writes before closing... | |
513 | */ | |
514 | ||
515 | httpFlushWrite(HTTP(con)); | |
516 | ||
517 | partial = 0; | |
518 | ||
519 | #ifdef HAVE_SSL | |
520 | /* | |
521 | * Shutdown encryption as needed... | |
522 | */ | |
523 | ||
524 | if (con->http.tls) | |
525 | { | |
526 | partial = 1; | |
527 | ||
82cc1f9a | 528 | cupsdEndTLS(con); |
ef416fc2 | 529 | } |
530 | #endif /* HAVE_SSL */ | |
531 | ||
532 | if (con->pipe_pid != 0) | |
533 | { | |
534 | /* | |
535 | * Stop any CGI process... | |
536 | */ | |
537 | ||
ef416fc2 | 538 | cupsdEndProcess(con->pipe_pid, 1); |
539 | con->pipe_pid = 0; | |
540 | } | |
541 | ||
542 | if (con->file >= 0) | |
543 | { | |
f7deaa1a | 544 | cupsdRemoveSelect(con->file); |
ef416fc2 | 545 | |
ef416fc2 | 546 | close(con->file); |
547 | con->file = -1; | |
548 | } | |
549 | ||
550 | /* | |
551 | * Close the socket and clear the file from the input set for select()... | |
552 | */ | |
553 | ||
3dfe78b3 | 554 | if (con->http.fd >= 0) |
ef416fc2 | 555 | { |
3dfe78b3 MS |
556 | cupsArrayRemove(ActiveClients, con); |
557 | cupsdSetBusyState(); | |
558 | ||
ef416fc2 | 559 | if (partial) |
560 | { | |
561 | /* | |
562 | * Only do a partial close so that the encrypted client gets everything. | |
563 | */ | |
564 | ||
ef416fc2 | 565 | shutdown(con->http.fd, 0); |
f7deaa1a | 566 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 567 | } |
568 | else | |
569 | { | |
570 | /* | |
571 | * Shut the socket down fully... | |
572 | */ | |
573 | ||
f7deaa1a | 574 | cupsdRemoveSelect(con->http.fd); |
ef416fc2 | 575 | close(con->http.fd); |
ef416fc2 | 576 | con->http.fd = -1; |
577 | } | |
578 | } | |
579 | ||
580 | if (!partial) | |
581 | { | |
582 | /* | |
583 | * Free memory... | |
584 | */ | |
585 | ||
586 | if (con->http.input_set) | |
587 | free(con->http.input_set); | |
588 | ||
589 | httpClearCookie(HTTP(con)); | |
9f5eb9be | 590 | httpClearFields(HTTP(con)); |
ef416fc2 | 591 | |
592 | cupsdClearString(&con->filename); | |
593 | cupsdClearString(&con->command); | |
594 | cupsdClearString(&con->options); | |
b86bc4cf | 595 | cupsdClearString(&con->query_string); |
ef416fc2 | 596 | |
597 | if (con->request) | |
598 | { | |
599 | ippDelete(con->request); | |
600 | con->request = NULL; | |
601 | } | |
602 | ||
603 | if (con->response) | |
604 | { | |
605 | ippDelete(con->response); | |
606 | con->response = NULL; | |
607 | } | |
608 | ||
609 | if (con->language) | |
610 | { | |
611 | cupsLangFree(con->language); | |
612 | con->language = NULL; | |
613 | } | |
614 | ||
f7deaa1a | 615 | #ifdef HAVE_AUTHORIZATION_H |
616 | if (con->authref) | |
617 | { | |
618 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
619 | con->authref = NULL; | |
620 | } | |
621 | #endif /* HAVE_AUTHORIZATION_H */ | |
622 | ||
ef416fc2 | 623 | /* |
624 | * Re-enable new client connections if we are going back under the | |
625 | * limit... | |
626 | */ | |
627 | ||
bd7854cb | 628 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 629 | cupsdResumeListening(); |
630 | ||
631 | /* | |
632 | * Compact the list of clients as necessary... | |
633 | */ | |
634 | ||
bd7854cb | 635 | cupsArrayRemove(Clients, con); |
ef416fc2 | 636 | |
bd7854cb | 637 | free(con); |
ef416fc2 | 638 | } |
639 | ||
640 | return (partial); | |
641 | } | |
642 | ||
643 | ||
d09495fa | 644 | /* |
645 | * 'cupsdFlushHeader()' - Flush the header fields to the client. | |
646 | */ | |
647 | ||
07725fee | 648 | int /* I - Bytes written or -1 on error */ |
d09495fa | 649 | cupsdFlushHeader(cupsd_client_t *con) /* I - Client to flush to */ |
650 | { | |
07725fee | 651 | int bytes = httpFlushWrite(HTTP(con)); |
d09495fa | 652 | |
653 | con->http.data_encoding = HTTP_ENCODE_LENGTH; | |
07725fee | 654 | |
655 | return (bytes); | |
d09495fa | 656 | } |
657 | ||
658 | ||
ef416fc2 | 659 | /* |
660 | * 'cupsdReadClient()' - Read data from a client. | |
661 | */ | |
662 | ||
f7deaa1a | 663 | void |
ef416fc2 | 664 | cupsdReadClient(cupsd_client_t *con) /* I - Client to read from */ |
665 | { | |
666 | char line[32768], /* Line from client... */ | |
667 | operation[64], /* Operation code from socket */ | |
668 | version[64], /* HTTP version number string */ | |
669 | locale[64], /* Locale */ | |
670 | *ptr; /* Pointer into strings */ | |
671 | int major, minor; /* HTTP version numbers */ | |
672 | http_status_t status; /* Transfer status */ | |
673 | ipp_state_t ipp_state; /* State of IPP transfer */ | |
674 | int bytes; /* Number of bytes to POST */ | |
675 | char *filename; /* Name of file for GET/HEAD */ | |
676 | char buf[1024]; /* Buffer for real filename */ | |
677 | struct stat filestats; /* File information */ | |
678 | mime_type_t *type; /* MIME type of file */ | |
679 | cupsd_printer_t *p; /* Printer */ | |
680 | static unsigned request_id = 0; /* Request ID for temp files */ | |
681 | ||
682 | ||
683 | status = HTTP_CONTINUE; | |
684 | ||
685 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
686 | "[Client %d] cupsdReadClient " |
687 | "error=%d, " | |
688 | "used=%d, " | |
689 | "state=%s, " | |
690 | "data_encoding=HTTP_ENCODE_%s, " | |
691 | "data_remaining=" CUPS_LLFMT ", " | |
692 | "request=%p(%s), " | |
693 | "file=%d", | |
694 | con->http.fd, con->http.error, con->http.used, | |
695 | http_states[con->http.state], | |
b9faaae1 MS |
696 | con->http.data_encoding == HTTP_ENCODE_CHUNKED ? |
697 | "CHUNKED" : "LENGTH", | |
85dda01c MS |
698 | CUPS_LLCAST con->http.data_remaining, |
699 | con->request, | |
700 | con->request ? ipp_states[con->request->state] : "", | |
701 | con->file); | |
ef416fc2 | 702 | |
ef416fc2 | 703 | #ifdef HAVE_SSL |
704 | if (con->auto_ssl) | |
705 | { | |
706 | /* | |
707 | * Automatically check for a SSL/TLS handshake... | |
708 | */ | |
709 | ||
710 | con->auto_ssl = 0; | |
711 | ||
712 | if (recv(con->http.fd, buf, 1, MSG_PEEK) == 1 && | |
713 | (!buf[0] || !strchr("DGHOPT", buf[0]))) | |
714 | { | |
715 | /* | |
716 | * Encrypt this connection... | |
717 | */ | |
718 | ||
719 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
720 | "[Client %d] Saw first byte %02X, auto-negotiating " |
721 | "SSL/TLS session.", con->http.fd, buf[0] & 255); | |
ef416fc2 | 722 | |
82cc1f9a | 723 | if (!cupsdStartTLS(con)) |
f7deaa1a | 724 | cupsdCloseClient(con); |
411affcf | 725 | |
f7deaa1a | 726 | return; |
ef416fc2 | 727 | } |
728 | } | |
729 | #endif /* HAVE_SSL */ | |
730 | ||
731 | switch (con->http.state) | |
732 | { | |
733 | case HTTP_WAITING : | |
734 | /* | |
735 | * See if we've received a request line... | |
736 | */ | |
737 | ||
738 | if (httpGets(line, sizeof(line) - 1, HTTP(con)) == NULL) | |
739 | { | |
f11a948a MS |
740 | if (con->http.error && con->http.error != EPIPE) |
741 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c | 742 | "[Client %d] HTTP_WAITING Closing for error %d " |
f11a948a MS |
743 | "(%s)", con->http.fd, con->http.error, |
744 | strerror(con->http.error)); | |
745 | else | |
746 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c | 747 | "[Client %d] HTTP_WAITING Closing on EOF", |
f11a948a MS |
748 | con->http.fd); |
749 | ||
f7deaa1a | 750 | cupsdCloseClient(con); |
751 | return; | |
ef416fc2 | 752 | } |
753 | ||
754 | /* | |
755 | * Ignore blank request lines... | |
756 | */ | |
757 | ||
758 | if (line[0] == '\0') | |
759 | break; | |
760 | ||
761 | /* | |
762 | * Clear other state variables... | |
763 | */ | |
764 | ||
765 | httpClearFields(HTTP(con)); | |
766 | ||
767 | con->http.activity = time(NULL); | |
768 | con->http.version = HTTP_1_0; | |
769 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
770 | con->http.data_encoding = HTTP_ENCODE_LENGTH; | |
771 | con->http.data_remaining = 0; | |
772 | con->http._data_remaining = 0; | |
773 | con->operation = HTTP_WAITING; | |
774 | con->bytes = 0; | |
775 | con->file = -1; | |
776 | con->file_ready = 0; | |
777 | con->pipe_pid = 0; | |
778 | con->username[0] = '\0'; | |
779 | con->password[0] = '\0'; | |
780 | con->uri[0] = '\0'; | |
781 | ||
782 | cupsdClearString(&con->command); | |
783 | cupsdClearString(&con->options); | |
b86bc4cf | 784 | cupsdClearString(&con->query_string); |
ef416fc2 | 785 | |
2abf387c | 786 | if (con->request) |
787 | { | |
788 | ippDelete(con->request); | |
789 | con->request = NULL; | |
790 | } | |
791 | ||
792 | if (con->response) | |
793 | { | |
794 | ippDelete(con->response); | |
795 | con->response = NULL; | |
796 | } | |
797 | ||
798 | if (con->language) | |
ef416fc2 | 799 | { |
800 | cupsLangFree(con->language); | |
801 | con->language = NULL; | |
802 | } | |
803 | ||
09a101d6 | 804 | #ifdef HAVE_GSSAPI |
97c9a8d7 | 805 | con->have_gss = 0; |
07ed0e9a | 806 | con->gss_uid = 0; |
09a101d6 | 807 | #endif /* HAVE_GSSAPI */ |
808 | ||
ef416fc2 | 809 | /* |
810 | * Grab the request line... | |
811 | */ | |
812 | ||
813 | switch (sscanf(line, "%63s%1023s%63s", operation, con->uri, version)) | |
814 | { | |
815 | case 1 : | |
c934a06c MS |
816 | if (line[0]) |
817 | { | |
818 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
85dda01c MS |
819 | "[Client %d] Bad request line \"%s\" from %s.", |
820 | con->http.fd, | |
c8fef167 | 821 | _httpEncodeURI(buf, line, sizeof(buf)), |
c934a06c MS |
822 | con->http.hostname); |
823 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); | |
824 | cupsdCloseClient(con); | |
825 | } | |
f7deaa1a | 826 | return; |
ef416fc2 | 827 | case 2 : |
828 | con->http.version = HTTP_0_9; | |
829 | break; | |
830 | case 3 : | |
831 | if (sscanf(version, "HTTP/%d.%d", &major, &minor) != 2) | |
832 | { | |
833 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
85dda01c MS |
834 | "[Client %d] Bad request line \"%s\" from %s.", |
835 | con->http.fd, | |
c8fef167 | 836 | _httpEncodeURI(buf, line, sizeof(buf)), |
ef416fc2 | 837 | con->http.hostname); |
5bd77a73 | 838 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 839 | cupsdCloseClient(con); |
840 | return; | |
ef416fc2 | 841 | } |
842 | ||
843 | if (major < 2) | |
844 | { | |
845 | con->http.version = (http_version_t)(major * 100 + minor); | |
846 | if (con->http.version == HTTP_1_1 && KeepAlive) | |
847 | con->http.keep_alive = HTTP_KEEPALIVE_ON; | |
848 | else | |
849 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
850 | } | |
851 | else | |
852 | { | |
f11a948a | 853 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
854 | "[Client %d] Unsupported request line \"%s\" " |
855 | "from %s.", con->http.fd, | |
c8fef167 MS |
856 | _httpEncodeURI(buf, line, sizeof(buf)), |
857 | con->http.hostname); | |
5bd77a73 | 858 | cupsdSendError(con, HTTP_NOT_SUPPORTED, CUPSD_AUTH_NONE); |
f7deaa1a | 859 | cupsdCloseClient(con); |
860 | return; | |
ef416fc2 | 861 | } |
862 | break; | |
863 | } | |
864 | ||
865 | /* | |
866 | * Handle full URLs in the request line... | |
867 | */ | |
868 | ||
869 | if (strcmp(con->uri, "*")) | |
870 | { | |
e6013cfa | 871 | char scheme[HTTP_MAX_URI], /* Method/scheme */ |
ef416fc2 | 872 | userpass[HTTP_MAX_URI], /* Username:password */ |
873 | hostname[HTTP_MAX_URI], /* Hostname */ | |
874 | resource[HTTP_MAX_URI]; /* Resource path */ | |
875 | int port; /* Port number */ | |
876 | ||
877 | ||
878 | /* | |
879 | * Separate the URI into its components... | |
880 | */ | |
881 | ||
a4d04587 | 882 | httpSeparateURI(HTTP_URI_CODING_MOST, con->uri, |
e6013cfa | 883 | scheme, sizeof(scheme), |
ef416fc2 | 884 | userpass, sizeof(userpass), |
885 | hostname, sizeof(hostname), &port, | |
886 | resource, sizeof(resource)); | |
887 | ||
888 | /* | |
889 | * Only allow URIs with the servername, localhost, or an IP | |
890 | * address... | |
891 | */ | |
892 | ||
e6013cfa | 893 | if (strcmp(scheme, "file") && |
88f9aafc MS |
894 | _cups_strcasecmp(hostname, ServerName) && |
895 | _cups_strcasecmp(hostname, "localhost") && | |
e6013cfa | 896 | !isdigit(hostname[0]) && hostname[0] != '[') |
ef416fc2 | 897 | { |
898 | /* | |
899 | * Nope, we don't do proxies... | |
900 | */ | |
901 | ||
85dda01c MS |
902 | cupsdLogMessage(CUPSD_LOG_ERROR, |
903 | "[Client %d] Bad URI \"%s\" in request.", | |
904 | con->http.fd, con->uri); | |
5bd77a73 | 905 | cupsdSendError(con, HTTP_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE); |
f7deaa1a | 906 | cupsdCloseClient(con); |
907 | return; | |
ef416fc2 | 908 | } |
909 | ||
910 | /* | |
911 | * Copy the resource portion back into the URI; both resource and | |
912 | * con->uri are HTTP_MAX_URI bytes in size... | |
913 | */ | |
914 | ||
5a9febac | 915 | strlcpy(con->uri, resource, sizeof(con->uri)); |
ef416fc2 | 916 | } |
917 | ||
918 | /* | |
919 | * Process the request... | |
920 | */ | |
921 | ||
922 | if (!strcmp(operation, "GET")) | |
923 | con->http.state = HTTP_GET; | |
924 | else if (!strcmp(operation, "PUT")) | |
925 | con->http.state = HTTP_PUT; | |
926 | else if (!strcmp(operation, "POST")) | |
927 | con->http.state = HTTP_POST; | |
928 | else if (!strcmp(operation, "DELETE")) | |
929 | con->http.state = HTTP_DELETE; | |
930 | else if (!strcmp(operation, "TRACE")) | |
931 | con->http.state = HTTP_TRACE; | |
932 | else if (!strcmp(operation, "OPTIONS")) | |
933 | con->http.state = HTTP_OPTIONS; | |
934 | else if (!strcmp(operation, "HEAD")) | |
935 | con->http.state = HTTP_HEAD; | |
936 | else | |
937 | { | |
85dda01c MS |
938 | cupsdLogMessage(CUPSD_LOG_ERROR, |
939 | "[Client %d] Bad operation \"%s\".", con->http.fd, | |
940 | operation); | |
5bd77a73 | 941 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 942 | cupsdCloseClient(con); |
943 | return; | |
ef416fc2 | 944 | } |
945 | ||
dfd5680b | 946 | gettimeofday(&(con->start), NULL); |
ef416fc2 | 947 | con->operation = con->http.state; |
948 | ||
85dda01c | 949 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] %s %s HTTP/%d.%d", |
89d46774 | 950 | con->http.fd, operation, con->uri, |
ef416fc2 | 951 | con->http.version / 100, con->http.version % 100); |
952 | ||
953 | con->http.status = HTTP_OK; | |
954 | ||
49d87452 MS |
955 | if (!cupsArrayFind(ActiveClients, con)) |
956 | { | |
957 | cupsArrayAdd(ActiveClients, con); | |
958 | cupsdSetBusyState(); | |
959 | } | |
3dfe78b3 | 960 | |
ef416fc2 | 961 | case HTTP_OPTIONS : |
962 | case HTTP_DELETE : | |
963 | case HTTP_GET : | |
964 | case HTTP_HEAD : | |
965 | case HTTP_POST : | |
966 | case HTTP_PUT : | |
967 | case HTTP_TRACE : | |
968 | /* | |
969 | * Parse incoming parameters until the status changes... | |
970 | */ | |
971 | ||
f7deaa1a | 972 | while ((status = httpUpdate(HTTP(con))) == HTTP_CONTINUE) |
ee571f26 | 973 | if (!data_ready(con)) |
f7deaa1a | 974 | break; |
ef416fc2 | 975 | |
976 | if (status != HTTP_OK && status != HTTP_CONTINUE) | |
977 | { | |
f11a948a MS |
978 | if (con->http.error && con->http.error != EPIPE) |
979 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c MS |
980 | "[Client %d] Closing for error %d (%s) while " |
981 | "reading headers.", | |
982 | con->http.fd, con->http.error, | |
f11a948a MS |
983 | strerror(con->http.error)); |
984 | else | |
985 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c MS |
986 | "[Client %d] Closing on EOF while reading headers.", |
987 | con->http.fd); | |
f11a948a | 988 | |
5bd77a73 | 989 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 990 | cupsdCloseClient(con); |
991 | return; | |
ef416fc2 | 992 | } |
993 | break; | |
994 | ||
995 | default : | |
e6013cfa MS |
996 | if (!data_ready(con) && recv(con->http.fd, buf, 1, MSG_PEEK) < 1) |
997 | { | |
998 | /* | |
999 | * Connection closed... | |
1000 | */ | |
1001 | ||
f11a948a | 1002 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
85dda01c | 1003 | "[Client %d] Closing on EOF", con->http.fd); |
e6013cfa MS |
1004 | cupsdCloseClient(con); |
1005 | return; | |
1006 | } | |
ef416fc2 | 1007 | break; /* Anti-compiler-warning-code */ |
1008 | } | |
1009 | ||
1010 | /* | |
1011 | * Handle new transfers... | |
1012 | */ | |
1013 | ||
1014 | if (status == HTTP_OK) | |
1015 | { | |
1016 | if (con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE][0]) | |
1017 | { | |
1018 | /* | |
1019 | * Figure out the locale from the Accept-Language and Content-Type | |
1020 | * fields... | |
1021 | */ | |
1022 | ||
f11a948a MS |
1023 | if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], |
1024 | ',')) != NULL) | |
ef416fc2 | 1025 | *ptr = '\0'; |
1026 | ||
f11a948a MS |
1027 | if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], |
1028 | ';')) != NULL) | |
ef416fc2 | 1029 | *ptr = '\0'; |
1030 | ||
f11a948a MS |
1031 | if ((ptr = strstr(con->http.fields[HTTP_FIELD_CONTENT_TYPE], |
1032 | "charset=")) != NULL) | |
ef416fc2 | 1033 | { |
1034 | /* | |
1035 | * Combine language and charset, and trim any extra params in the | |
1036 | * content-type. | |
1037 | */ | |
1038 | ||
1039 | snprintf(locale, sizeof(locale), "%s.%s", | |
1040 | con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ptr + 8); | |
1041 | ||
1042 | if ((ptr = strchr(locale, ',')) != NULL) | |
1043 | *ptr = '\0'; | |
1044 | } | |
1045 | else | |
f8b3a85b MS |
1046 | snprintf(locale, sizeof(locale), "%s.UTF-8", |
1047 | con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE]); | |
d6ae789d | 1048 | |
ef416fc2 | 1049 | con->language = cupsLangGet(locale); |
1050 | } | |
1051 | else | |
1052 | con->language = cupsLangGet(DefaultLocale); | |
1053 | ||
1054 | cupsdAuthorize(con); | |
1055 | ||
85dda01c MS |
1056 | if (!_cups_strncasecmp(con->http.fields[HTTP_FIELD_CONNECTION], |
1057 | "Keep-Alive", 10) && KeepAlive) | |
ef416fc2 | 1058 | con->http.keep_alive = HTTP_KEEPALIVE_ON; |
85dda01c MS |
1059 | else if (!_cups_strncasecmp(con->http.fields[HTTP_FIELD_CONNECTION], |
1060 | "close", 5)) | |
52f6f666 | 1061 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; |
ef416fc2 | 1062 | |
1063 | if (!con->http.fields[HTTP_FIELD_HOST][0] && | |
1064 | con->http.version >= HTTP_1_1) | |
1065 | { | |
1066 | /* | |
1067 | * HTTP/1.1 and higher require the "Host:" field... | |
1068 | */ | |
1069 | ||
5bd77a73 | 1070 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1071 | { |
85dda01c MS |
1072 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1073 | "[Client %d] Missing Host: field in request.", | |
1074 | con->http.fd); | |
f7deaa1a | 1075 | cupsdCloseClient(con); |
1076 | return; | |
1077 | } | |
ef416fc2 | 1078 | } |
e07d4801 | 1079 | else if (!valid_host(con)) |
e6013cfa MS |
1080 | { |
1081 | /* | |
1082 | * Access to localhost must use "localhost" or the corresponding IPv4 | |
1083 | * or IPv6 values in the Host: field. | |
1084 | */ | |
1085 | ||
f11a948a | 1086 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
1087 | "[Client %d] Request from \"%s\" using invalid Host: " |
1088 | "field \"%s\"", con->http.fd, con->http.hostname, | |
1089 | con->http.fields[HTTP_FIELD_HOST]); | |
e6013cfa MS |
1090 | |
1091 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) | |
1092 | { | |
1093 | cupsdCloseClient(con); | |
1094 | return; | |
1095 | } | |
1096 | } | |
ef416fc2 | 1097 | else if (con->operation == HTTP_OPTIONS) |
1098 | { | |
1099 | /* | |
1100 | * Do OPTIONS command... | |
1101 | */ | |
1102 | ||
5bd77a73 | 1103 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
ef416fc2 | 1104 | { |
5bd77a73 | 1105 | if (!cupsdSendHeader(con, HTTP_UNAUTHORIZED, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1106 | { |
1107 | cupsdCloseClient(con); | |
1108 | return; | |
1109 | } | |
ef416fc2 | 1110 | } |
1111 | ||
88f9aafc | 1112 | if (!_cups_strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") && |
ef416fc2 | 1113 | con->http.tls == NULL) |
1114 | { | |
1115 | #ifdef HAVE_SSL | |
1116 | /* | |
1117 | * Do encryption stuff... | |
1118 | */ | |
1119 | ||
5bd77a73 | 1120 | if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1121 | { |
1122 | cupsdCloseClient(con); | |
1123 | return; | |
1124 | } | |
ef416fc2 | 1125 | |
1126 | httpPrintf(HTTP(con), "Connection: Upgrade\r\n"); | |
1127 | httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n"); | |
1128 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1129 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1130 | |
1131 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1132 | { |
1133 | cupsdCloseClient(con); | |
1134 | return; | |
1135 | } | |
ef416fc2 | 1136 | |
82cc1f9a | 1137 | if (!cupsdStartTLS(con)) |
f7deaa1a | 1138 | { |
1139 | cupsdCloseClient(con); | |
1140 | return; | |
1141 | } | |
ef416fc2 | 1142 | #else |
5bd77a73 | 1143 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1144 | { |
1145 | cupsdCloseClient(con); | |
1146 | return; | |
1147 | } | |
ef416fc2 | 1148 | #endif /* HAVE_SSL */ |
1149 | } | |
1150 | ||
5bd77a73 | 1151 | if (!cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1152 | { |
1153 | cupsdCloseClient(con); | |
1154 | return; | |
1155 | } | |
ef416fc2 | 1156 | |
1157 | httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n"); | |
1158 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1159 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1160 | |
1161 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1162 | { |
1163 | cupsdCloseClient(con); | |
1164 | return; | |
1165 | } | |
ef416fc2 | 1166 | } |
1167 | else if (!is_path_absolute(con->uri)) | |
1168 | { | |
1169 | /* | |
1170 | * Protect against malicious users! | |
1171 | */ | |
1172 | ||
bf3816c7 | 1173 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
1174 | "[Client %d] Request for non-absolute resource \"%s\".", |
1175 | con->http.fd, con->uri); | |
bf3816c7 | 1176 | |
5bd77a73 | 1177 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1178 | { |
1179 | cupsdCloseClient(con); | |
1180 | return; | |
1181 | } | |
ef416fc2 | 1182 | } |
1183 | else | |
1184 | { | |
85dda01c MS |
1185 | if (!_cups_strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], |
1186 | "Upgrade") && con->http.tls == NULL) | |
ef416fc2 | 1187 | { |
1188 | #ifdef HAVE_SSL | |
1189 | /* | |
1190 | * Do encryption stuff... | |
1191 | */ | |
1192 | ||
85dda01c MS |
1193 | if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, |
1194 | CUPSD_AUTH_NONE)) | |
f7deaa1a | 1195 | { |
1196 | cupsdCloseClient(con); | |
1197 | return; | |
1198 | } | |
ef416fc2 | 1199 | |
1200 | httpPrintf(HTTP(con), "Connection: Upgrade\r\n"); | |
1201 | httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n"); | |
1202 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1203 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1204 | |
1205 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1206 | { |
1207 | cupsdCloseClient(con); | |
1208 | return; | |
1209 | } | |
ef416fc2 | 1210 | |
82cc1f9a | 1211 | if (!cupsdStartTLS(con)) |
f7deaa1a | 1212 | { |
1213 | cupsdCloseClient(con); | |
1214 | return; | |
1215 | } | |
ef416fc2 | 1216 | #else |
5bd77a73 | 1217 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1218 | { |
1219 | cupsdCloseClient(con); | |
1220 | return; | |
1221 | } | |
ef416fc2 | 1222 | #endif /* HAVE_SSL */ |
1223 | } | |
1224 | ||
1225 | if ((status = cupsdIsAuthorized(con, NULL)) != HTTP_OK) | |
1226 | { | |
5bd77a73 | 1227 | cupsdSendError(con, status, CUPSD_AUTH_NONE); |
f7deaa1a | 1228 | cupsdCloseClient(con); |
1229 | return; | |
ef416fc2 | 1230 | } |
1231 | ||
b423cd4c | 1232 | if (con->http.expect && |
1233 | (con->operation == HTTP_POST || con->operation == HTTP_PUT)) | |
ef416fc2 | 1234 | { |
b423cd4c | 1235 | if (con->http.expect == HTTP_CONTINUE) |
1236 | { | |
1237 | /* | |
1238 | * Send 100-continue header... | |
1239 | */ | |
1240 | ||
5bd77a73 | 1241 | if (!cupsdSendHeader(con, HTTP_CONTINUE, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1242 | { |
1243 | cupsdCloseClient(con); | |
1244 | return; | |
1245 | } | |
b423cd4c | 1246 | } |
1247 | else | |
1248 | { | |
1249 | /* | |
1250 | * Send 417-expectation-failed header... | |
1251 | */ | |
1252 | ||
f11a948a MS |
1253 | if (!cupsdSendHeader(con, HTTP_EXPECTATION_FAILED, NULL, |
1254 | CUPSD_AUTH_NONE)) | |
f7deaa1a | 1255 | { |
1256 | cupsdCloseClient(con); | |
1257 | return; | |
1258 | } | |
b423cd4c | 1259 | |
1260 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1261 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1262 | |
1263 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1264 | { |
1265 | cupsdCloseClient(con); | |
1266 | return; | |
1267 | } | |
b423cd4c | 1268 | } |
ef416fc2 | 1269 | } |
1270 | ||
1271 | switch (con->http.state) | |
1272 | { | |
1273 | case HTTP_GET_SEND : | |
1274 | if (!strncmp(con->uri, "/printers/", 10) && | |
1275 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1276 | { | |
1277 | /* | |
1278 | * Send PPD file - get the real printer name since printer | |
1279 | * names are not case sensitive but filenames can be... | |
1280 | */ | |
1281 | ||
1282 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1283 | ||
1284 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1285 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1286 | else | |
1287 | { | |
5bd77a73 | 1288 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1289 | { |
1290 | cupsdCloseClient(con); | |
1291 | return; | |
1292 | } | |
ef416fc2 | 1293 | |
1294 | break; | |
1295 | } | |
1296 | } | |
7cf5915e MS |
1297 | else if ((!strncmp(con->uri, "/printers/", 10) || |
1298 | !strncmp(con->uri, "/classes/", 9)) && | |
1299 | !strcmp(con->uri + strlen(con->uri) - 4, ".png")) | |
1300 | { | |
1301 | /* | |
1302 | * Send icon file - get the real queue name since queue names are | |
1303 | * not case sensitive but filenames can be... | |
1304 | */ | |
1305 | ||
1306 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".png" */ | |
1307 | ||
1308 | if (!strncmp(con->uri, "/printers/", 10)) | |
1309 | p = cupsdFindPrinter(con->uri + 10); | |
1310 | else | |
1311 | p = cupsdFindClass(con->uri + 9); | |
1312 | ||
1313 | if (p) | |
1314 | snprintf(con->uri, sizeof(con->uri), "/icons/%s.png", p->name); | |
1315 | else | |
1316 | { | |
1317 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) | |
1318 | { | |
1319 | cupsdCloseClient(con); | |
1320 | return; | |
1321 | } | |
1322 | ||
1323 | break; | |
1324 | } | |
1325 | } | |
0268488e | 1326 | else if (!WebInterface) |
229681c1 MS |
1327 | { |
1328 | /* | |
1329 | * Web interface is disabled. Show an appropriate message... | |
1330 | */ | |
1331 | ||
1332 | if (!cupsdSendError(con, HTTP_WEBIF_DISABLED, CUPSD_AUTH_NONE)) | |
1333 | { | |
1334 | cupsdCloseClient(con); | |
1335 | return; | |
1336 | } | |
1337 | ||
1338 | break; | |
1339 | } | |
0268488e MS |
1340 | |
1341 | if ((!strncmp(con->uri, "/admin", 6) && | |
1342 | strncmp(con->uri, "/admin/conf/", 12) && | |
1343 | strncmp(con->uri, "/admin/log/", 11)) || | |
1344 | !strncmp(con->uri, "/printers", 9) || | |
1345 | !strncmp(con->uri, "/classes", 8) || | |
1346 | !strncmp(con->uri, "/help", 5) || | |
1347 | !strncmp(con->uri, "/jobs", 5)) | |
ef416fc2 | 1348 | { |
1349 | /* | |
1350 | * Send CGI output... | |
1351 | */ | |
1352 | ||
1353 | if (!strncmp(con->uri, "/admin", 6)) | |
1354 | { | |
1355 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1356 | ServerBin); | |
1357 | ||
b423cd4c | 1358 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1359 | } |
1360 | else if (!strncmp(con->uri, "/printers", 9)) | |
1361 | { | |
1362 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1363 | ServerBin); | |
b423cd4c | 1364 | |
1365 | if (con->uri[9] && con->uri[10]) | |
1366 | cupsdSetString(&con->options, con->uri + 9); | |
1367 | else | |
1368 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1369 | } |
1370 | else if (!strncmp(con->uri, "/classes", 8)) | |
1371 | { | |
1372 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1373 | ServerBin); | |
b423cd4c | 1374 | |
1375 | if (con->uri[8] && con->uri[9]) | |
1376 | cupsdSetString(&con->options, con->uri + 8); | |
1377 | else | |
1378 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1379 | } |
1380 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1381 | { | |
1382 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1383 | ServerBin); | |
b423cd4c | 1384 | |
1385 | if (con->uri[5] && con->uri[6]) | |
1386 | cupsdSetString(&con->options, con->uri + 5); | |
1387 | else | |
1388 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1389 | } |
1390 | else | |
1391 | { | |
1392 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1393 | ServerBin); | |
ef416fc2 | 1394 | |
b423cd4c | 1395 | if (con->uri[5] && con->uri[6]) |
1396 | cupsdSetString(&con->options, con->uri + 5); | |
1397 | else | |
1398 | cupsdSetString(&con->options, NULL); | |
1399 | } | |
ef416fc2 | 1400 | |
1401 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1402 | { | |
5bd77a73 | 1403 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1404 | { |
1405 | cupsdCloseClient(con); | |
1406 | return; | |
1407 | } | |
ef416fc2 | 1408 | } |
1409 | else | |
1410 | cupsdLogRequest(con, HTTP_OK); | |
1411 | ||
1412 | if (con->http.version <= HTTP_1_0) | |
1413 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1414 | } | |
1415 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1416 | (strchr(con->uri + 12, '/') || | |
1417 | strlen(con->uri) == 12)) || | |
1418 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1419 | (strchr(con->uri + 11, '/') || | |
1420 | strlen(con->uri) == 11))) | |
1421 | { | |
1422 | /* | |
bf3816c7 | 1423 | * GET can only be done to configuration files directly under |
ef416fc2 | 1424 | * /admin/conf... |
1425 | */ | |
1426 | ||
bf3816c7 MS |
1427 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1428 | "Request for subdirectory \"%s\"!", con->uri); | |
1429 | ||
5bd77a73 | 1430 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1431 | { |
1432 | cupsdCloseClient(con); | |
1433 | return; | |
1434 | } | |
ef416fc2 | 1435 | |
1436 | break; | |
1437 | } | |
1438 | else | |
1439 | { | |
1440 | /* | |
1441 | * Serve a file... | |
1442 | */ | |
1443 | ||
1444 | if ((filename = get_file(con, &filestats, buf, | |
1445 | sizeof(buf))) == NULL) | |
1446 | { | |
5bd77a73 | 1447 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1448 | { |
1449 | cupsdCloseClient(con); | |
1450 | return; | |
1451 | } | |
ef416fc2 | 1452 | |
1453 | break; | |
1454 | } | |
1455 | ||
4400e98d | 1456 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1457 | |
e1d6a774 | 1458 | if (is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1459 | { |
1460 | /* | |
1461 | * Note: con->command and con->options were set by | |
e1d6a774 | 1462 | * is_cgi()... |
ef416fc2 | 1463 | */ |
1464 | ||
1465 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1466 | { | |
5bd77a73 | 1467 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1468 | { |
1469 | cupsdCloseClient(con); | |
1470 | return; | |
1471 | } | |
ef416fc2 | 1472 | } |
1473 | else | |
1474 | cupsdLogRequest(con, HTTP_OK); | |
1475 | ||
1476 | if (con->http.version <= HTTP_1_0) | |
1477 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1478 | break; | |
1479 | } | |
1480 | ||
1481 | if (!check_if_modified(con, &filestats)) | |
1482 | { | |
5bd77a73 | 1483 | if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1484 | { |
1485 | cupsdCloseClient(con); | |
1486 | return; | |
1487 | } | |
ef416fc2 | 1488 | } |
1489 | else | |
1490 | { | |
1491 | if (type == NULL) | |
5a9febac | 1492 | strlcpy(line, "text/plain", sizeof(line)); |
ef416fc2 | 1493 | else |
1494 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1495 | ||
a74454a7 | 1496 | if (!write_file(con, HTTP_OK, filename, line, &filestats)) |
f7deaa1a | 1497 | { |
1498 | cupsdCloseClient(con); | |
1499 | return; | |
1500 | } | |
ef416fc2 | 1501 | } |
1502 | } | |
1503 | break; | |
1504 | ||
1505 | case HTTP_POST_RECV : | |
1506 | /* | |
1507 | * See if the POST request includes a Content-Length field, and if | |
1508 | * so check the length against any limits that are set... | |
1509 | */ | |
1510 | ||
ef416fc2 | 1511 | if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && |
1512 | MaxRequestSize > 0 && | |
1513 | con->http.data_remaining > MaxRequestSize) | |
1514 | { | |
1515 | /* | |
1516 | * Request too large... | |
1517 | */ | |
1518 | ||
5bd77a73 | 1519 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1520 | { |
1521 | cupsdCloseClient(con); | |
1522 | return; | |
1523 | } | |
ef416fc2 | 1524 | |
1525 | break; | |
1526 | } | |
839a51c8 MS |
1527 | else if (con->http.data_remaining < 0 || |
1528 | (!con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && | |
1529 | con->http.data_encoding == HTTP_ENCODE_LENGTH)) | |
ef416fc2 | 1530 | { |
1531 | /* | |
1532 | * Negative content lengths are invalid! | |
1533 | */ | |
1534 | ||
5bd77a73 | 1535 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1536 | { |
1537 | cupsdCloseClient(con); | |
1538 | return; | |
1539 | } | |
ef416fc2 | 1540 | |
1541 | break; | |
1542 | } | |
1543 | ||
1544 | /* | |
1545 | * See what kind of POST request this is; for IPP requests the | |
1546 | * content-type field will be "application/ipp"... | |
1547 | */ | |
1548 | ||
1549 | if (!strcmp(con->http.fields[HTTP_FIELD_CONTENT_TYPE], | |
1550 | "application/ipp")) | |
1551 | con->request = ippNew(); | |
229681c1 MS |
1552 | else if (!WebInterface) |
1553 | { | |
1554 | /* | |
1555 | * Web interface is disabled. Show an appropriate message... | |
1556 | */ | |
1557 | ||
1558 | if (!cupsdSendError(con, HTTP_WEBIF_DISABLED, CUPSD_AUTH_NONE)) | |
1559 | { | |
1560 | cupsdCloseClient(con); | |
1561 | return; | |
1562 | } | |
1563 | ||
1564 | break; | |
1565 | } | |
ef416fc2 | 1566 | else if ((!strncmp(con->uri, "/admin", 6) && |
1567 | strncmp(con->uri, "/admin/conf/", 12) && | |
1568 | strncmp(con->uri, "/admin/log/", 11)) || | |
1569 | !strncmp(con->uri, "/printers", 9) || | |
1570 | !strncmp(con->uri, "/classes", 8) || | |
1571 | !strncmp(con->uri, "/help", 5) || | |
1572 | !strncmp(con->uri, "/jobs", 5)) | |
1573 | { | |
1574 | /* | |
1575 | * CGI request... | |
1576 | */ | |
1577 | ||
1578 | if (!strncmp(con->uri, "/admin", 6)) | |
1579 | { | |
1580 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1581 | ServerBin); | |
1582 | ||
b423cd4c | 1583 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1584 | } |
1585 | else if (!strncmp(con->uri, "/printers", 9)) | |
1586 | { | |
1587 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1588 | ServerBin); | |
b423cd4c | 1589 | |
1590 | if (con->uri[9] && con->uri[10]) | |
1591 | cupsdSetString(&con->options, con->uri + 9); | |
1592 | else | |
1593 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1594 | } |
1595 | else if (!strncmp(con->uri, "/classes", 8)) | |
1596 | { | |
1597 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1598 | ServerBin); | |
b423cd4c | 1599 | |
1600 | if (con->uri[8] && con->uri[9]) | |
1601 | cupsdSetString(&con->options, con->uri + 8); | |
1602 | else | |
1603 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1604 | } |
1605 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1606 | { | |
1607 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1608 | ServerBin); | |
b423cd4c | 1609 | |
1610 | if (con->uri[5] && con->uri[6]) | |
1611 | cupsdSetString(&con->options, con->uri + 5); | |
1612 | else | |
1613 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1614 | } |
1615 | else | |
1616 | { | |
1617 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1618 | ServerBin); | |
ef416fc2 | 1619 | |
b423cd4c | 1620 | if (con->uri[5] && con->uri[6]) |
1621 | cupsdSetString(&con->options, con->uri + 5); | |
1622 | else | |
1623 | cupsdSetString(&con->options, NULL); | |
1624 | } | |
ef416fc2 | 1625 | |
ef416fc2 | 1626 | if (con->http.version <= HTTP_1_0) |
1627 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1628 | } | |
1629 | else | |
1630 | { | |
1631 | /* | |
1632 | * POST to a file... | |
1633 | */ | |
1634 | ||
1635 | if ((filename = get_file(con, &filestats, buf, | |
1636 | sizeof(buf))) == NULL) | |
1637 | { | |
5bd77a73 | 1638 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1639 | { |
1640 | cupsdCloseClient(con); | |
1641 | return; | |
1642 | } | |
ef416fc2 | 1643 | |
1644 | break; | |
1645 | } | |
1646 | ||
4400e98d | 1647 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1648 | |
e1d6a774 | 1649 | if (!is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1650 | { |
1651 | /* | |
1652 | * Only POST to CGI's... | |
1653 | */ | |
1654 | ||
5bd77a73 | 1655 | if (!cupsdSendError(con, HTTP_UNAUTHORIZED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1656 | { |
1657 | cupsdCloseClient(con); | |
1658 | return; | |
1659 | } | |
ef416fc2 | 1660 | } |
1661 | } | |
1662 | break; | |
1663 | ||
1664 | case HTTP_PUT_RECV : | |
1665 | /* | |
1666 | * Validate the resource name... | |
1667 | */ | |
1668 | ||
1669 | if (strncmp(con->uri, "/admin/conf/", 12) || | |
1670 | strchr(con->uri + 12, '/') || | |
1671 | strlen(con->uri) == 12) | |
1672 | { | |
1673 | /* | |
1674 | * PUT can only be done to configuration files under | |
1675 | * /admin/conf... | |
1676 | */ | |
1677 | ||
bf3816c7 | 1678 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
1679 | "[Client %d] Request for subdirectory \"%s\".", |
1680 | con->http.fd, con->uri); | |
bf3816c7 | 1681 | |
5bd77a73 | 1682 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1683 | { |
1684 | cupsdCloseClient(con); | |
1685 | return; | |
1686 | } | |
ef416fc2 | 1687 | |
1688 | break; | |
1689 | } | |
1690 | ||
1691 | /* | |
1692 | * See if the PUT request includes a Content-Length field, and if | |
1693 | * so check the length against any limits that are set... | |
1694 | */ | |
1695 | ||
ef416fc2 | 1696 | if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && |
1697 | MaxRequestSize > 0 && | |
1698 | con->http.data_remaining > MaxRequestSize) | |
1699 | { | |
1700 | /* | |
1701 | * Request too large... | |
1702 | */ | |
1703 | ||
5bd77a73 | 1704 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1705 | { |
1706 | cupsdCloseClient(con); | |
1707 | return; | |
1708 | } | |
ef416fc2 | 1709 | |
1710 | break; | |
1711 | } | |
1712 | else if (con->http.data_remaining < 0) | |
1713 | { | |
1714 | /* | |
1715 | * Negative content lengths are invalid! | |
1716 | */ | |
1717 | ||
5bd77a73 | 1718 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1719 | { |
1720 | cupsdCloseClient(con); | |
1721 | return; | |
1722 | } | |
ef416fc2 | 1723 | |
1724 | break; | |
1725 | } | |
1726 | ||
1727 | /* | |
1728 | * Open a temporary file to hold the request... | |
1729 | */ | |
1730 | ||
1731 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, | |
1732 | request_id ++); | |
1733 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); | |
1734 | ||
ef416fc2 | 1735 | if (con->file < 0) |
1736 | { | |
a4924f6c | 1737 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
1738 | "[Client %d] Unable to create request file " |
1739 | "\"%s\": %s", con->http.fd, con->filename, | |
1740 | strerror(errno)); | |
a4924f6c | 1741 | |
5bd77a73 | 1742 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1743 | { |
1744 | cupsdCloseClient(con); | |
1745 | return; | |
1746 | } | |
ef416fc2 | 1747 | } |
1748 | ||
1749 | fchmod(con->file, 0640); | |
1750 | fchown(con->file, RunUser, Group); | |
1751 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1752 | break; | |
1753 | ||
1754 | case HTTP_DELETE : | |
1755 | case HTTP_TRACE : | |
5bd77a73 | 1756 | cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE); |
f7deaa1a | 1757 | cupsdCloseClient(con); |
1758 | return; | |
ef416fc2 | 1759 | |
1760 | case HTTP_HEAD : | |
1761 | if (!strncmp(con->uri, "/printers/", 10) && | |
1762 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1763 | { | |
1764 | /* | |
1765 | * Send PPD file - get the real printer name since printer | |
1766 | * names are not case sensitive but filenames can be... | |
1767 | */ | |
1768 | ||
1769 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1770 | ||
1771 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1772 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1773 | else | |
1774 | { | |
5bd77a73 | 1775 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1776 | { |
1777 | cupsdCloseClient(con); | |
1778 | return; | |
1779 | } | |
ef416fc2 | 1780 | |
1781 | break; | |
1782 | } | |
1783 | } | |
229681c1 MS |
1784 | else if (!strncmp(con->uri, "/printers/", 10) && |
1785 | !strcmp(con->uri + strlen(con->uri) - 4, ".png")) | |
1786 | { | |
1787 | /* | |
1788 | * Send PNG file - get the real printer name since printer | |
1789 | * names are not case sensitive but filenames can be... | |
1790 | */ | |
1791 | ||
1792 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1793 | ||
1794 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1795 | snprintf(con->uri, sizeof(con->uri), "/icons/%s.png", p->name); | |
1796 | else | |
1797 | { | |
1798 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) | |
1799 | { | |
1800 | cupsdCloseClient(con); | |
1801 | return; | |
1802 | } | |
1803 | ||
1804 | break; | |
1805 | } | |
1806 | } | |
1807 | else if (!WebInterface) | |
1808 | { | |
1809 | if (!cupsdSendHeader(con, HTTP_OK, line, CUPSD_AUTH_NONE)) | |
1810 | { | |
1811 | cupsdCloseClient(con); | |
1812 | return; | |
1813 | } | |
1814 | ||
1815 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
1816 | { | |
1817 | cupsdCloseClient(con); | |
1818 | return; | |
1819 | } | |
1820 | ||
1821 | if (cupsdFlushHeader(con) < 0) | |
1822 | { | |
1823 | cupsdCloseClient(con); | |
1824 | return; | |
1825 | } | |
1826 | ||
1827 | con->http.state = HTTP_WAITING; | |
1828 | break; | |
1829 | } | |
ef416fc2 | 1830 | |
1831 | if ((!strncmp(con->uri, "/admin", 6) && | |
1832 | strncmp(con->uri, "/admin/conf/", 12) && | |
1833 | strncmp(con->uri, "/admin/log/", 11)) || | |
1834 | !strncmp(con->uri, "/printers", 9) || | |
1835 | !strncmp(con->uri, "/classes", 8) || | |
1836 | !strncmp(con->uri, "/help", 5) || | |
1837 | !strncmp(con->uri, "/jobs", 5)) | |
1838 | { | |
1839 | /* | |
1840 | * CGI output... | |
1841 | */ | |
1842 | ||
5bd77a73 | 1843 | if (!cupsdSendHeader(con, HTTP_OK, "text/html", CUPSD_AUTH_NONE)) |
f7deaa1a | 1844 | { |
1845 | cupsdCloseClient(con); | |
1846 | return; | |
1847 | } | |
ef416fc2 | 1848 | |
1849 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
f7deaa1a | 1850 | { |
1851 | cupsdCloseClient(con); | |
1852 | return; | |
1853 | } | |
ef416fc2 | 1854 | |
07725fee | 1855 | if (cupsdFlushHeader(con) < 0) |
f7deaa1a | 1856 | { |
1857 | cupsdCloseClient(con); | |
1858 | return; | |
1859 | } | |
d09495fa | 1860 | |
ef416fc2 | 1861 | cupsdLogRequest(con, HTTP_OK); |
1862 | } | |
1863 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1864 | (strchr(con->uri + 12, '/') || | |
1865 | strlen(con->uri) == 12)) || | |
1866 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1867 | (strchr(con->uri + 11, '/') || | |
1868 | strlen(con->uri) == 11))) | |
1869 | { | |
1870 | /* | |
1871 | * HEAD can only be done to configuration files under | |
1872 | * /admin/conf... | |
1873 | */ | |
1874 | ||
bf3816c7 | 1875 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
1876 | "[Client %d] Request for subdirectory \"%s\".", |
1877 | con->http.fd, con->uri); | |
bf3816c7 | 1878 | |
5bd77a73 | 1879 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1880 | { |
1881 | cupsdCloseClient(con); | |
1882 | return; | |
1883 | } | |
ef416fc2 | 1884 | |
1885 | break; | |
1886 | } | |
1887 | else if ((filename = get_file(con, &filestats, buf, | |
1888 | sizeof(buf))) == NULL) | |
1889 | { | |
f11a948a MS |
1890 | if (!cupsdSendHeader(con, HTTP_NOT_FOUND, "text/html", |
1891 | CUPSD_AUTH_NONE)) | |
f7deaa1a | 1892 | { |
1893 | cupsdCloseClient(con); | |
1894 | return; | |
1895 | } | |
ef416fc2 | 1896 | |
1897 | cupsdLogRequest(con, HTTP_NOT_FOUND); | |
1898 | } | |
1899 | else if (!check_if_modified(con, &filestats)) | |
1900 | { | |
5bd77a73 | 1901 | if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1902 | { |
1903 | cupsdCloseClient(con); | |
1904 | return; | |
1905 | } | |
ef416fc2 | 1906 | |
1907 | cupsdLogRequest(con, HTTP_NOT_MODIFIED); | |
1908 | } | |
1909 | else | |
1910 | { | |
1911 | /* | |
1912 | * Serve a file... | |
1913 | */ | |
1914 | ||
4400e98d | 1915 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1916 | if (type == NULL) |
5a9febac | 1917 | strlcpy(line, "text/plain", sizeof(line)); |
ef416fc2 | 1918 | else |
1919 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1920 | ||
5bd77a73 | 1921 | if (!cupsdSendHeader(con, HTTP_OK, line, CUPSD_AUTH_NONE)) |
f7deaa1a | 1922 | { |
1923 | cupsdCloseClient(con); | |
1924 | return; | |
1925 | } | |
ef416fc2 | 1926 | |
1927 | if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n", | |
1928 | httpGetDateString(filestats.st_mtime)) < 0) | |
f7deaa1a | 1929 | { |
1930 | cupsdCloseClient(con); | |
1931 | return; | |
1932 | } | |
ef416fc2 | 1933 | |
1934 | if (httpPrintf(HTTP(con), "Content-Length: %lu\r\n", | |
1935 | (unsigned long)filestats.st_size) < 0) | |
f7deaa1a | 1936 | { |
1937 | cupsdCloseClient(con); | |
1938 | return; | |
1939 | } | |
ef416fc2 | 1940 | |
1941 | cupsdLogRequest(con, HTTP_OK); | |
1942 | } | |
1943 | ||
1944 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
f7deaa1a | 1945 | { |
1946 | cupsdCloseClient(con); | |
1947 | return; | |
1948 | } | |
ef416fc2 | 1949 | |
07725fee | 1950 | if (cupsdFlushHeader(con) < 0) |
f7deaa1a | 1951 | { |
1952 | cupsdCloseClient(con); | |
1953 | return; | |
1954 | } | |
d09495fa | 1955 | |
ef416fc2 | 1956 | con->http.state = HTTP_WAITING; |
1957 | break; | |
1958 | ||
1959 | default : | |
1960 | break; /* Anti-compiler-warning-code */ | |
1961 | } | |
1962 | } | |
1963 | } | |
1964 | ||
1965 | /* | |
1966 | * Handle any incoming data... | |
1967 | */ | |
1968 | ||
1969 | switch (con->http.state) | |
1970 | { | |
1971 | case HTTP_PUT_RECV : | |
f7deaa1a | 1972 | do |
ef416fc2 | 1973 | { |
f7deaa1a | 1974 | if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0) |
1975 | { | |
f11a948a MS |
1976 | if (con->http.error && con->http.error != EPIPE) |
1977 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c | 1978 | "[Client %d] HTTP_PUT_RECV Closing for error " |
f11a948a MS |
1979 | "%d (%s)", con->http.fd, con->http.error, |
1980 | strerror(con->http.error)); | |
1981 | else | |
1982 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c | 1983 | "[Client %d] HTTP_PUT_RECV Closing on EOF", |
f11a948a MS |
1984 | con->http.fd); |
1985 | ||
f7deaa1a | 1986 | cupsdCloseClient(con); |
1987 | return; | |
1988 | } | |
1989 | else if (bytes > 0) | |
1990 | { | |
1991 | con->bytes += bytes; | |
ef416fc2 | 1992 | |
f7deaa1a | 1993 | if (write(con->file, line, bytes) < bytes) |
1994 | { | |
1995 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
85dda01c MS |
1996 | "[Client %d] Unable to write %d bytes to " |
1997 | "\"%s\": %s", con->http.fd, bytes, con->filename, | |
1998 | strerror(errno)); | |
ef416fc2 | 1999 | |
f7deaa1a | 2000 | close(con->file); |
2001 | con->file = -1; | |
2002 | unlink(con->filename); | |
2003 | cupsdClearString(&con->filename); | |
ef416fc2 | 2004 | |
5bd77a73 | 2005 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2006 | { |
2007 | cupsdCloseClient(con); | |
2008 | return; | |
2009 | } | |
2010 | } | |
ef416fc2 | 2011 | } |
f7deaa1a | 2012 | } |
ee571f26 | 2013 | while (con->http.state == HTTP_PUT_RECV && data_ready(con)); |
ef416fc2 | 2014 | |
2015 | if (con->http.state == HTTP_WAITING) | |
2016 | { | |
2017 | /* | |
2018 | * End of file, see how big it is... | |
2019 | */ | |
2020 | ||
2021 | fstat(con->file, &filestats); | |
2022 | ||
ef416fc2 | 2023 | close(con->file); |
2024 | con->file = -1; | |
2025 | ||
2026 | if (filestats.st_size > MaxRequestSize && | |
2027 | MaxRequestSize > 0) | |
2028 | { | |
2029 | /* | |
2030 | * Request is too big; remove it and send an error... | |
2031 | */ | |
2032 | ||
ef416fc2 | 2033 | unlink(con->filename); |
2034 | cupsdClearString(&con->filename); | |
2035 | ||
5bd77a73 | 2036 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2037 | { |
2038 | cupsdCloseClient(con); | |
2039 | return; | |
2040 | } | |
ef416fc2 | 2041 | } |
2042 | ||
2043 | /* | |
2044 | * Install the configuration file... | |
2045 | */ | |
2046 | ||
2047 | status = install_conf_file(con); | |
2048 | ||
2049 | /* | |
2050 | * Return the status to the client... | |
2051 | */ | |
2052 | ||
5bd77a73 | 2053 | if (!cupsdSendError(con, status, CUPSD_AUTH_NONE)) |
f7deaa1a | 2054 | { |
2055 | cupsdCloseClient(con); | |
2056 | return; | |
2057 | } | |
ef416fc2 | 2058 | } |
2059 | break; | |
2060 | ||
2061 | case HTTP_POST_RECV : | |
f7deaa1a | 2062 | do |
ef416fc2 | 2063 | { |
f11a948a | 2064 | if (con->request && con->file < 0) |
ef416fc2 | 2065 | { |
f7deaa1a | 2066 | /* |
2067 | * Grab any request data from the connection... | |
2068 | */ | |
ef416fc2 | 2069 | |
f7deaa1a | 2070 | if ((ipp_state = ippRead(&(con->http), con->request)) == IPP_ERROR) |
ef416fc2 | 2071 | { |
f7deaa1a | 2072 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
2073 | "[Client %d] IPP read error: %s", con->http.fd, |
2074 | cupsLastErrorString()); | |
f7deaa1a | 2075 | |
5bd77a73 | 2076 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 2077 | cupsdCloseClient(con); |
2078 | return; | |
ef416fc2 | 2079 | } |
f7deaa1a | 2080 | else if (ipp_state != IPP_DATA) |
2081 | { | |
2082 | if (con->http.state == HTTP_POST_SEND) | |
2083 | { | |
5bd77a73 | 2084 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 2085 | cupsdCloseClient(con); |
2086 | return; | |
2087 | } | |
ef416fc2 | 2088 | |
f7deaa1a | 2089 | break; |
2090 | } | |
2091 | else | |
f11a948a | 2092 | { |
85dda01c | 2093 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] %d.%d %s %d", |
f11a948a MS |
2094 | con->http.fd, con->request->request.op.version[0], |
2095 | con->request->request.op.version[1], | |
2096 | ippOpString(con->request->request.op.operation_id), | |
2097 | con->request->request.op.request_id); | |
f7deaa1a | 2098 | con->bytes += ippLength(con->request); |
f11a948a | 2099 | } |
f7deaa1a | 2100 | } |
ef416fc2 | 2101 | |
f7deaa1a | 2102 | if (con->file < 0 && con->http.state != HTTP_POST_SEND) |
2103 | { | |
2104 | /* | |
2105 | * Create a file as needed for the request data... | |
2106 | */ | |
ef416fc2 | 2107 | |
f11a948a MS |
2108 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, |
2109 | request_id ++); | |
f7deaa1a | 2110 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); |
ef416fc2 | 2111 | |
f7deaa1a | 2112 | if (con->file < 0) |
2113 | { | |
a4924f6c | 2114 | cupsdLogMessage(CUPSD_LOG_ERROR, |
85dda01c MS |
2115 | "[Client %d] Unable to create request file " |
2116 | "\"%s\": %s", con->http.fd, con->filename, | |
2117 | strerror(errno)); | |
a4924f6c | 2118 | |
5bd77a73 | 2119 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2120 | { |
2121 | cupsdCloseClient(con); | |
2122 | return; | |
2123 | } | |
2124 | } | |
ef416fc2 | 2125 | |
f7deaa1a | 2126 | fchmod(con->file, 0640); |
2127 | fchown(con->file, RunUser, Group); | |
2128 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
2129 | } | |
ef416fc2 | 2130 | |
f7deaa1a | 2131 | if (con->http.state != HTTP_POST_SEND) |
ef416fc2 | 2132 | { |
f7deaa1a | 2133 | if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0) |
2134 | { | |
f11a948a MS |
2135 | if (con->http.error && con->http.error != EPIPE) |
2136 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c | 2137 | "[Client %d] HTTP_POST_SEND Closing for " |
f11a948a MS |
2138 | "error %d (%s)", con->http.fd, con->http.error, |
2139 | strerror(con->http.error)); | |
2140 | else | |
2141 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c | 2142 | "[Client %d] HTTP_POST_SEND Closing on EOF", |
f11a948a MS |
2143 | con->http.fd); |
2144 | ||
f7deaa1a | 2145 | cupsdCloseClient(con); |
2146 | return; | |
2147 | } | |
2148 | else if (bytes > 0) | |
2149 | { | |
2150 | con->bytes += bytes; | |
ef416fc2 | 2151 | |
f7deaa1a | 2152 | if (write(con->file, line, bytes) < bytes) |
2153 | { | |
2154 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
85dda01c MS |
2155 | "[Client %d] Unable to write %d bytes to " |
2156 | "\"%s\": %s", con->http.fd, bytes, | |
2157 | con->filename, strerror(errno)); | |
ef416fc2 | 2158 | |
f7deaa1a | 2159 | close(con->file); |
2160 | con->file = -1; | |
2161 | unlink(con->filename); | |
2162 | cupsdClearString(&con->filename); | |
ef416fc2 | 2163 | |
f11a948a MS |
2164 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, |
2165 | CUPSD_AUTH_NONE)) | |
f7deaa1a | 2166 | { |
2167 | cupsdCloseClient(con); | |
2168 | return; | |
2169 | } | |
2170 | } | |
2171 | } | |
2172 | else if (con->http.state == HTTP_POST_RECV) | |
2173 | return; | |
2174 | else if (con->http.state != HTTP_POST_SEND) | |
2175 | { | |
f11a948a | 2176 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
85dda01c MS |
2177 | "[Client %d] Closing on unexpected state %s.", |
2178 | con->http.fd, http_states[con->http.state]); | |
f7deaa1a | 2179 | cupsdCloseClient(con); |
2180 | return; | |
ef416fc2 | 2181 | } |
2182 | } | |
f7deaa1a | 2183 | } |
ee571f26 | 2184 | while (con->http.state == HTTP_POST_RECV && data_ready(con)); |
ef416fc2 | 2185 | |
2186 | if (con->http.state == HTTP_POST_SEND) | |
2187 | { | |
2188 | if (con->file >= 0) | |
2189 | { | |
2190 | fstat(con->file, &filestats); | |
2191 | ||
ef416fc2 | 2192 | close(con->file); |
2193 | con->file = -1; | |
2194 | ||
2195 | if (filestats.st_size > MaxRequestSize && | |
2196 | MaxRequestSize > 0) | |
2197 | { | |
2198 | /* | |
2199 | * Request is too big; remove it and send an error... | |
2200 | */ | |
2201 | ||
ef416fc2 | 2202 | unlink(con->filename); |
2203 | cupsdClearString(&con->filename); | |
2204 | ||
2205 | if (con->request) | |
2206 | { | |
2207 | /* | |
2208 | * Delete any IPP request data... | |
2209 | */ | |
2210 | ||
2211 | ippDelete(con->request); | |
2212 | con->request = NULL; | |
2213 | } | |
2214 | ||
5bd77a73 | 2215 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2216 | { |
2217 | cupsdCloseClient(con); | |
2218 | return; | |
2219 | } | |
ef416fc2 | 2220 | } |
f8b3a85b MS |
2221 | else if (filestats.st_size == 0) |
2222 | { | |
2223 | /* | |
2224 | * Don't allow empty file... | |
2225 | */ | |
2226 | ||
2227 | unlink(con->filename); | |
2228 | cupsdClearString(&con->filename); | |
2229 | } | |
ef416fc2 | 2230 | |
2231 | if (con->command) | |
2232 | { | |
2233 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
2234 | { | |
5bd77a73 | 2235 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 2236 | { |
2237 | cupsdCloseClient(con); | |
2238 | return; | |
2239 | } | |
ef416fc2 | 2240 | } |
2241 | else | |
2242 | cupsdLogRequest(con, HTTP_OK); | |
2243 | } | |
2244 | } | |
2245 | ||
2246 | if (con->request) | |
f7deaa1a | 2247 | { |
2248 | cupsdProcessIPPRequest(con); | |
bc44d920 | 2249 | |
2250 | if (con->filename) | |
2251 | { | |
bc44d920 | 2252 | unlink(con->filename); |
2253 | cupsdClearString(&con->filename); | |
2254 | } | |
2255 | ||
f7deaa1a | 2256 | return; |
2257 | } | |
ef416fc2 | 2258 | } |
2259 | break; | |
2260 | ||
2261 | default : | |
2262 | break; /* Anti-compiler-warning-code */ | |
2263 | } | |
2264 | ||
3dfe78b3 MS |
2265 | if (con->http.state == HTTP_WAITING) |
2266 | { | |
2267 | if (!con->http.keep_alive) | |
f11a948a MS |
2268 | { |
2269 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
85dda01c | 2270 | "[Client %d] Closing because Keep-Alive disabled", |
f11a948a | 2271 | con->http.fd); |
3dfe78b3 | 2272 | cupsdCloseClient(con); |
f11a948a | 2273 | } |
3dfe78b3 MS |
2274 | else |
2275 | { | |
2276 | cupsArrayRemove(ActiveClients, con); | |
2277 | cupsdSetBusyState(); | |
2278 | } | |
2279 | } | |
ef416fc2 | 2280 | } |
2281 | ||
2282 | ||
2283 | /* | |
2284 | * 'cupsdSendCommand()' - Send output from a command via HTTP. | |
2285 | */ | |
2286 | ||
2287 | int /* O - 1 on success, 0 on failure */ | |
2288 | cupsdSendCommand( | |
2289 | cupsd_client_t *con, /* I - Client connection */ | |
2290 | char *command, /* I - Command to run */ | |
2291 | char *options, /* I - Command-line options */ | |
2292 | int root) /* I - Run as root? */ | |
2293 | { | |
2294 | int fd; /* Standard input file descriptor */ | |
2295 | ||
2296 | ||
2297 | if (con->filename) | |
ed486911 | 2298 | { |
ef416fc2 | 2299 | fd = open(con->filename, O_RDONLY); |
ef416fc2 | 2300 | |
ed486911 | 2301 | if (fd < 0) |
2302 | { | |
2303 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
85dda01c | 2304 | "[Client %d] Unable to open \"%s\" for reading: %s", |
ed486911 | 2305 | con->http.fd, con->filename ? con->filename : "/dev/null", |
2306 | strerror(errno)); | |
2307 | return (0); | |
2308 | } | |
ef416fc2 | 2309 | |
ed486911 | 2310 | fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); |
2311 | } | |
2312 | else | |
2313 | fd = -1; | |
ef416fc2 | 2314 | |
2315 | con->pipe_pid = pipe_command(con, fd, &(con->file), command, options, root); | |
2316 | ||
ed486911 | 2317 | if (fd >= 0) |
2318 | close(fd); | |
ef416fc2 | 2319 | |
85dda01c MS |
2320 | cupsdLogMessage(CUPSD_LOG_INFO, "[Client %d] Started \"%s\" (pid=%d)", |
2321 | con->http.fd, command, con->pipe_pid); | |
ef416fc2 | 2322 | |
85dda01c MS |
2323 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[Client %d] file=%d", con->http.fd, |
2324 | con->file); | |
ef416fc2 | 2325 | |
2326 | if (con->pipe_pid == 0) | |
2327 | return (0); | |
2328 | ||
2329 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
2330 | ||
f899b121 | 2331 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
ef416fc2 | 2332 | |
2333 | con->sent_header = 0; | |
2334 | con->file_ready = 0; | |
2335 | con->got_fields = 0; | |
68b10830 | 2336 | con->header_used = 0; |
ef416fc2 | 2337 | |
2338 | return (1); | |
2339 | } | |
2340 | ||
2341 | ||
2342 | /* | |
2343 | * 'cupsdSendError()' - Send an error message via HTTP. | |
2344 | */ | |
2345 | ||
2346 | int /* O - 1 if successful, 0 otherwise */ | |
2347 | cupsdSendError(cupsd_client_t *con, /* I - Connection */ | |
f899b121 | 2348 | http_status_t code, /* I - Error code */ |
2349 | int auth_type)/* I - Authentication type */ | |
ef416fc2 | 2350 | { |
b9faaae1 | 2351 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
85dda01c | 2352 | "[Client %d] cupsdSendError code=%d, auth_type=%d", |
b9faaae1 MS |
2353 | con->http.fd, code, auth_type); |
2354 | ||
4744bd90 | 2355 | #ifdef HAVE_SSL |
2356 | /* | |
2357 | * Force client to upgrade for authentication if that is how the | |
2358 | * server is configured... | |
2359 | */ | |
2360 | ||
2361 | if (code == HTTP_UNAUTHORIZED && | |
2362 | DefaultEncryption == HTTP_ENCRYPT_REQUIRED && | |
88f9aafc | 2363 | _cups_strcasecmp(con->http.hostname, "localhost") && |
4744bd90 | 2364 | !con->http.tls) |
2365 | { | |
4744bd90 | 2366 | code = HTTP_UPGRADE_REQUIRED; |
2367 | } | |
2368 | #endif /* HAVE_SSL */ | |
2369 | ||
ef416fc2 | 2370 | /* |
2371 | * Put the request in the access_log file... | |
2372 | */ | |
2373 | ||
2374 | cupsdLogRequest(con, code); | |
2375 | ||
ef416fc2 | 2376 | /* |
2377 | * To work around bugs in some proxies, don't use Keep-Alive for some | |
2378 | * error messages... | |
f7deaa1a | 2379 | * |
2380 | * Kerberos authentication doesn't work without Keep-Alive, so | |
2381 | * never disable it in that case. | |
ef416fc2 | 2382 | */ |
2383 | ||
5bd77a73 | 2384 | if (code >= HTTP_BAD_REQUEST && con->http.auth_type != CUPSD_AUTH_NEGOTIATE) |
ef416fc2 | 2385 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; |
2386 | ||
2387 | /* | |
2388 | * Send an error message back to the client. If the error code is a | |
2389 | * 400 or 500 series, make sure the message contains some text, too! | |
2390 | */ | |
2391 | ||
f899b121 | 2392 | if (!cupsdSendHeader(con, code, NULL, auth_type)) |
ef416fc2 | 2393 | return (0); |
2394 | ||
2395 | #ifdef HAVE_SSL | |
2396 | if (code == HTTP_UPGRADE_REQUIRED) | |
2397 | if (httpPrintf(HTTP(con), "Connection: Upgrade\r\n") < 0) | |
2398 | return (0); | |
2399 | ||
2400 | if (httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0) | |
2401 | return (0); | |
2402 | #endif /* HAVE_SSL */ | |
2403 | ||
f7deaa1a | 2404 | if (con->http.version >= HTTP_1_1 && |
2405 | con->http.keep_alive == HTTP_KEEPALIVE_OFF) | |
ef416fc2 | 2406 | { |
2407 | if (httpPrintf(HTTP(con), "Connection: close\r\n") < 0) | |
2408 | return (0); | |
2409 | } | |
2410 | ||
2411 | if (code >= HTTP_BAD_REQUEST) | |
2412 | { | |
2413 | /* | |
2414 | * Send a human-readable error message. | |
2415 | */ | |
2416 | ||
80ca4592 | 2417 | char message[4096], /* Message for user */ |
2418 | urltext[1024], /* URL redirection text */ | |
2419 | redirect[1024]; /* Redirection link */ | |
ef416fc2 | 2420 | const char *text; /* Status-specific text */ |
2421 | ||
80ca4592 | 2422 | |
2423 | redirect[0] = '\0'; | |
2424 | ||
ef416fc2 | 2425 | if (code == HTTP_UNAUTHORIZED) |
2426 | text = _cupsLangString(con->language, | |
2427 | _("Enter your username and password or the " | |
2428 | "root username and password to access this " | |
f7deaa1a | 2429 | "page. If you are using Kerberos authentication, " |
2430 | "make sure you have a valid Kerberos ticket.")); | |
ef416fc2 | 2431 | else if (code == HTTP_UPGRADE_REQUIRED) |
80ca4592 | 2432 | { |
2433 | text = urltext; | |
2434 | ||
2435 | snprintf(urltext, sizeof(urltext), | |
2436 | _cupsLangString(con->language, | |
2437 | _("You must access this page using the URL " | |
2438 | "<A HREF=\"https://%s:%d%s\">" | |
2439 | "https://%s:%d%s</A>.")), | |
2440 | con->servername, con->serverport, con->uri, | |
2441 | con->servername, con->serverport, con->uri); | |
2442 | ||
2443 | snprintf(redirect, sizeof(redirect), | |
b86bc4cf | 2444 | "<META HTTP-EQUIV=\"Refresh\" " |
2445 | "CONTENT=\"3;URL=https://%s:%d%s\">\n", | |
80ca4592 | 2446 | con->servername, con->serverport, con->uri); |
2447 | } | |
229681c1 MS |
2448 | else if (code == HTTP_WEBIF_DISABLED) |
2449 | text = _cupsLangString(con->language, | |
2450 | _("The web interface is currently disabled. Run " | |
2451 | "\"cupsctl WebInterface=yes\" to enable it.")); | |
ef416fc2 | 2452 | else |
2453 | text = ""; | |
2454 | ||
2455 | snprintf(message, sizeof(message), | |
745129be MS |
2456 | "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" " |
2457 | "\"http://www.w3.org/TR/html4/loose.dtd\">\n" | |
ef416fc2 | 2458 | "<HTML>\n" |
2459 | "<HEAD>\n" | |
2460 | "\t<META HTTP-EQUIV=\"Content-Type\" " | |
2461 | "CONTENT=\"text/html; charset=utf-8\">\n" | |
229681c1 | 2462 | "\t<TITLE>%s - " CUPS_SVERSION "</TITLE>\n" |
ef416fc2 | 2463 | "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" " |
2464 | "HREF=\"/cups.css\">\n" | |
80ca4592 | 2465 | "%s" |
ef416fc2 | 2466 | "</HEAD>\n" |
2467 | "<BODY>\n" | |
229681c1 | 2468 | "<H1>%s</H1>\n" |
ef416fc2 | 2469 | "<P>%s</P>\n" |
2470 | "</BODY>\n" | |
2471 | "</HTML>\n", | |
229681c1 | 2472 | httpStatus(code), redirect, httpStatus(code), text); |
ef416fc2 | 2473 | |
2474 | if (httpPrintf(HTTP(con), "Content-Type: text/html; charset=utf-8\r\n") < 0) | |
2475 | return (0); | |
2476 | if (httpPrintf(HTTP(con), "Content-Length: %d\r\n", | |
2477 | (int)strlen(message)) < 0) | |
2478 | return (0); | |
2479 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
2480 | return (0); | |
2481 | if (httpPrintf(HTTP(con), "%s", message) < 0) | |
2482 | return (0); | |
2483 | } | |
2484 | else if (httpPrintf(HTTP(con), "\r\n") < 0) | |
2485 | return (0); | |
2486 | ||
07725fee | 2487 | if (cupsdFlushHeader(con) < 0) |
2488 | return (0); | |
d09495fa | 2489 | |
ef416fc2 | 2490 | con->http.state = HTTP_WAITING; |
2491 | ||
2492 | return (1); | |
2493 | } | |
2494 | ||
2495 | ||
ef416fc2 | 2496 | /* |
2497 | * 'cupsdSendHeader()' - Send an HTTP request. | |
2498 | */ | |
2499 | ||
2500 | int /* O - 1 on success, 0 on failure */ | |
f899b121 | 2501 | cupsdSendHeader( |
2502 | cupsd_client_t *con, /* I - Client to send to */ | |
2503 | http_status_t code, /* I - HTTP status code */ | |
2504 | char *type, /* I - MIME type of document */ | |
2505 | int auth_type) /* I - Type of authentication */ | |
ef416fc2 | 2506 | { |
5a738aea | 2507 | char auth_str[1024]; /* Authorization string */ |
f7deaa1a | 2508 | |
2509 | ||
4744bd90 | 2510 | /* |
2511 | * Send the HTTP status header... | |
2512 | */ | |
2513 | ||
b423cd4c | 2514 | if (code == HTTP_CONTINUE) |
2515 | { | |
4744bd90 | 2516 | /* |
2517 | * 100-continue doesn't send any headers... | |
2518 | */ | |
2519 | ||
07725fee | 2520 | return (httpPrintf(HTTP(con), "HTTP/%d.%d 100 Continue\r\n\r\n", |
2521 | con->http.version / 100, con->http.version % 100) > 0); | |
b423cd4c | 2522 | } |
229681c1 MS |
2523 | else if (code == HTTP_WEBIF_DISABLED) |
2524 | { | |
2525 | /* | |
2526 | * Treat our special "web interface is disabled" status as "200 OK" for web | |
2527 | * browsers. | |
2528 | */ | |
2529 | ||
2530 | code = HTTP_OK; | |
2531 | } | |
b423cd4c | 2532 | |
07725fee | 2533 | httpFlushWrite(HTTP(con)); |
2534 | ||
2535 | con->http.data_encoding = HTTP_ENCODE_FIELDS; | |
2536 | ||
2537 | if (httpPrintf(HTTP(con), "HTTP/%d.%d %d %s\r\n", con->http.version / 100, | |
2538 | con->http.version % 100, code, httpStatus(code)) < 0) | |
2539 | return (0); | |
ef416fc2 | 2540 | if (httpPrintf(HTTP(con), "Date: %s\r\n", httpGetDateString(time(NULL))) < 0) |
2541 | return (0); | |
2542 | if (ServerHeader) | |
2543 | if (httpPrintf(HTTP(con), "Server: %s\r\n", ServerHeader) < 0) | |
2544 | return (0); | |
2545 | if (con->http.keep_alive && con->http.version >= HTTP_1_0) | |
2546 | { | |
2547 | if (httpPrintf(HTTP(con), "Connection: Keep-Alive\r\n") < 0) | |
2548 | return (0); | |
2549 | if (httpPrintf(HTTP(con), "Keep-Alive: timeout=%d\r\n", | |
2550 | KeepAliveTimeout) < 0) | |
2551 | return (0); | |
2552 | } | |
2553 | if (code == HTTP_METHOD_NOT_ALLOWED) | |
e6013cfa | 2554 | if (httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n") < 0) |
ef416fc2 | 2555 | return (0); |
2556 | ||
2557 | if (code == HTTP_UNAUTHORIZED) | |
2558 | { | |
5bd77a73 | 2559 | if (auth_type == CUPSD_AUTH_NONE) |
f899b121 | 2560 | { |
5bd77a73 | 2561 | if (!con->best || con->best->type <= CUPSD_AUTH_NONE) |
dcb445bc | 2562 | auth_type = cupsdDefaultAuthType(); |
f899b121 | 2563 | else |
2564 | auth_type = con->best->type; | |
2565 | } | |
f7deaa1a | 2566 | |
2567 | auth_str[0] = '\0'; | |
2568 | ||
5bd77a73 | 2569 | if (auth_type == CUPSD_AUTH_BASIC || auth_type == CUPSD_AUTH_BASICDIGEST) |
f7deaa1a | 2570 | strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str)); |
5bd77a73 | 2571 | else if (auth_type == CUPSD_AUTH_DIGEST) |
f7deaa1a | 2572 | snprintf(auth_str, sizeof(auth_str), "Digest realm=\"CUPS\", nonce=\"%s\"", |
2573 | con->http.hostname); | |
2574 | #ifdef HAVE_GSSAPI | |
eac3a0a0 MS |
2575 | else if (auth_type == CUPSD_AUTH_NEGOTIATE) |
2576 | { | |
2577 | # ifdef AF_LOCAL | |
2578 | if (_httpAddrFamily(con->http.hostaddr) == AF_LOCAL) | |
2579 | strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str)); | |
2580 | else | |
2581 | # endif /* AF_LOCAL */ | |
f7deaa1a | 2582 | strlcpy(auth_str, "Negotiate", sizeof(auth_str)); |
eac3a0a0 | 2583 | } |
f7deaa1a | 2584 | #endif /* HAVE_GSSAPI */ |
2585 | ||
e07d4801 | 2586 | if (con->best && auth_type != CUPSD_AUTH_NEGOTIATE && |
88f9aafc | 2587 | !_cups_strcasecmp(con->http.hostname, "localhost")) |
ef416fc2 | 2588 | { |
e07d4801 MS |
2589 | /* |
2590 | * Add a "trc" (try root certification) parameter for local non-Kerberos | |
2591 | * requests when the request requires system group membership - then the | |
2592 | * client knows the root certificate can/should be used. | |
2593 | * | |
f3c17241 | 2594 | * Also, for OS X we also look for @AUTHKEY and add an "authkey" |
e07d4801 MS |
2595 | * parameter as needed... |
2596 | */ | |
2597 | ||
10d09e33 MS |
2598 | char *name, /* Current user name */ |
2599 | *auth_key; /* Auth key buffer */ | |
f7deaa1a | 2600 | size_t auth_size; /* Size of remaining buffer */ |
2601 | ||
f7deaa1a | 2602 | auth_key = auth_str + strlen(auth_str); |
2603 | auth_size = sizeof(auth_str) - (auth_key - auth_str); | |
2604 | ||
10d09e33 MS |
2605 | for (name = (char *)cupsArrayFirst(con->best->names); |
2606 | name; | |
2607 | name = (char *)cupsArrayNext(con->best->names)) | |
f7deaa1a | 2608 | { |
e07d4801 | 2609 | #ifdef HAVE_AUTHORIZATION_H |
88f9aafc | 2610 | if (!_cups_strncasecmp(name, "@AUTHKEY(", 9)) |
f7deaa1a | 2611 | { |
10d09e33 | 2612 | snprintf(auth_key, auth_size, ", authkey=\"%s\"", name + 9); |
f7deaa1a | 2613 | /* end parenthesis is stripped in conf.c */ |
2614 | break; | |
2615 | } | |
e07d4801 MS |
2616 | else |
2617 | #endif /* HAVE_AUTHORIZATION_H */ | |
88f9aafc | 2618 | if (!_cups_strcasecmp(name, "@SYSTEM")) |
f7deaa1a | 2619 | { |
e07d4801 MS |
2620 | #ifdef HAVE_AUTHORIZATION_H |
2621 | if (SystemGroupAuthKey) | |
2622 | snprintf(auth_key, auth_size, | |
07ed0e9a | 2623 | ", authkey=\"%s\"", |
e07d4801 MS |
2624 | SystemGroupAuthKey); |
2625 | else | |
2626 | #else | |
f11a948a | 2627 | strlcpy(auth_key, ", trc=\"y\"", auth_size); |
e07d4801 | 2628 | #endif /* HAVE_AUTHORIZATION_H */ |
f7deaa1a | 2629 | break; |
2630 | } | |
2631 | } | |
ef416fc2 | 2632 | } |
f7deaa1a | 2633 | |
bc44d920 | 2634 | if (auth_str[0]) |
2635 | { | |
68b10830 | 2636 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
85dda01c | 2637 | "[Client %d] WWW-Authenticate: %s", con->http.fd, |
bc44d920 | 2638 | auth_str); |
2639 | ||
2640 | if (httpPrintf(HTTP(con), "WWW-Authenticate: %s\r\n", auth_str) < 0) | |
2641 | return (0); | |
2642 | } | |
ef416fc2 | 2643 | } |
2644 | ||
e1d6a774 | 2645 | if (con->language && strcmp(con->language->language, "C")) |
ef416fc2 | 2646 | { |
2647 | if (httpPrintf(HTTP(con), "Content-Language: %s\r\n", | |
2648 | con->language->language) < 0) | |
2649 | return (0); | |
2650 | } | |
2651 | ||
e1d6a774 | 2652 | if (type) |
ef416fc2 | 2653 | { |
2654 | if (!strcmp(type, "text/html")) | |
2655 | { | |
2656 | if (httpPrintf(HTTP(con), | |
2657 | "Content-Type: text/html; charset=utf-8\r\n") < 0) | |
2658 | return (0); | |
2659 | } | |
2660 | else if (httpPrintf(HTTP(con), "Content-Type: %s\r\n", type) < 0) | |
2661 | return (0); | |
2662 | } | |
2663 | ||
2664 | return (1); | |
2665 | } | |
2666 | ||
2667 | ||
2668 | /* | |
2669 | * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs. | |
2670 | */ | |
2671 | ||
2672 | void | |
2673 | cupsdUpdateCGI(void) | |
2674 | { | |
2675 | char *ptr, /* Pointer to end of line in buffer */ | |
2676 | message[1024]; /* Pointer to message text */ | |
2677 | int loglevel; /* Log level for message */ | |
2678 | ||
2679 | ||
2680 | while ((ptr = cupsdStatBufUpdate(CGIStatusBuffer, &loglevel, | |
2681 | message, sizeof(message))) != NULL) | |
f0ab5bff MS |
2682 | { |
2683 | if (loglevel == CUPSD_LOG_INFO) | |
2684 | cupsdLogMessage(CUPSD_LOG_INFO, "%s", message); | |
2685 | ||
ef416fc2 | 2686 | if (!strchr(CGIStatusBuffer->buffer, '\n')) |
2687 | break; | |
f0ab5bff | 2688 | } |
ef416fc2 | 2689 | |
d09495fa | 2690 | if (ptr == NULL && !CGIStatusBuffer->bufused) |
ef416fc2 | 2691 | { |
2692 | /* | |
2693 | * Fatal error on pipe - should never happen! | |
2694 | */ | |
2695 | ||
2696 | cupsdLogMessage(CUPSD_LOG_CRIT, | |
2697 | "cupsdUpdateCGI: error reading from CGI error pipe - %s", | |
2698 | strerror(errno)); | |
2699 | } | |
2700 | } | |
2701 | ||
2702 | ||
2703 | /* | |
2704 | * 'cupsdWriteClient()' - Write data to a client as needed. | |
2705 | */ | |
2706 | ||
f7deaa1a | 2707 | void |
ef416fc2 | 2708 | cupsdWriteClient(cupsd_client_t *con) /* I - Client connection */ |
2709 | { | |
68b10830 MS |
2710 | int bytes, /* Number of bytes written */ |
2711 | field_col; /* Current column */ | |
2712 | char *bufptr, /* Pointer into buffer */ | |
2713 | *bufend; /* Pointer to end of buffer */ | |
ef416fc2 | 2714 | ipp_state_t ipp_state; /* IPP state value */ |
2715 | ||
2716 | ||
ef416fc2 | 2717 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
85dda01c MS |
2718 | "[Client %d] cupsdWriteClient " |
2719 | "error=%d, " | |
2720 | "used=%d, " | |
2721 | "state=%s, " | |
2722 | "data_encoding=HTTP_ENCODE_%s, " | |
2723 | "data_remaining=" CUPS_LLFMT ", " | |
2724 | "response=%p(%s), " | |
2725 | "pipe_pid=%d, " | |
2726 | "file=%d", | |
2727 | con->http.fd, con->http.error, con->http.used, | |
2728 | http_states[con->http.state], | |
2729 | con->http.data_encoding == HTTP_ENCODE_CHUNKED ? | |
2730 | "CHUNKED" : "LENGTH", | |
2731 | CUPS_LLCAST con->http.data_remaining, | |
2732 | con->response, | |
2733 | con->response ? ipp_states[con->response->state] : "", | |
2734 | con->pipe_pid, con->file); | |
ef416fc2 | 2735 | |
2736 | if (con->http.state != HTTP_GET_SEND && | |
2737 | con->http.state != HTTP_POST_SEND) | |
8b116e60 MS |
2738 | { |
2739 | /* | |
2740 | * If we get called in the wrong state, then something went wrong with the | |
2741 | * connection and we need to shut it down... | |
2742 | */ | |
2743 | ||
f11a948a | 2744 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
85dda01c MS |
2745 | "[Client %d] Closing on unexpected HTTP state %s.", |
2746 | con->http.fd, http_states[con->http.state]); | |
8b116e60 | 2747 | cupsdCloseClient(con); |
f7deaa1a | 2748 | return; |
8b116e60 | 2749 | } |
f7deaa1a | 2750 | |
2751 | if (con->pipe_pid) | |
2752 | { | |
2753 | /* | |
2754 | * Make sure we select on the CGI output... | |
2755 | */ | |
2756 | ||
f899b121 | 2757 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
f7deaa1a | 2758 | |
2759 | if (!con->file_ready) | |
2760 | { | |
2761 | /* | |
2762 | * Try again later when there is CGI output available... | |
2763 | */ | |
2764 | ||
2765 | cupsdRemoveSelect(con->http.fd); | |
2766 | return; | |
2767 | } | |
2768 | ||
2769 | con->file_ready = 0; | |
2770 | } | |
ef416fc2 | 2771 | |
b94498cf | 2772 | if (con->response && con->response->state != IPP_DATA) |
ef416fc2 | 2773 | { |
07725fee | 2774 | ipp_state = ippWrite(HTTP(con), con->response); |
b94498cf | 2775 | bytes = ipp_state != IPP_ERROR && |
2776 | (con->file >= 0 || ipp_state != IPP_DATA); | |
ef416fc2 | 2777 | } |
a2326b5b | 2778 | else if ((bytes = read(con->file, con->header + con->header_used, |
68b10830 | 2779 | sizeof(con->header) - con->header_used)) > 0) |
ef416fc2 | 2780 | { |
68b10830 MS |
2781 | con->header_used += bytes; |
2782 | ||
ef416fc2 | 2783 | if (con->pipe_pid && !con->got_fields) |
2784 | { | |
2785 | /* | |
2786 | * Inspect the data for Content-Type and other fields. | |
2787 | */ | |
2788 | ||
68b10830 MS |
2789 | for (bufptr = con->header, bufend = con->header + con->header_used, |
2790 | field_col = 0; | |
2791 | !con->got_fields && bufptr < bufend; | |
2792 | bufptr ++) | |
d1c13e16 | 2793 | { |
ef416fc2 | 2794 | if (*bufptr == '\n') |
2795 | { | |
2796 | /* | |
2797 | * Send line to client... | |
2798 | */ | |
2799 | ||
68b10830 | 2800 | if (bufptr > con->header && bufptr[-1] == '\r') |
ef416fc2 | 2801 | bufptr[-1] = '\0'; |
2802 | *bufptr++ = '\0'; | |
2803 | ||
68b10830 | 2804 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Script header: %s", con->header); |
ef416fc2 | 2805 | |
2806 | if (!con->sent_header) | |
2807 | { | |
2808 | /* | |
2809 | * Handle redirection and CGI status codes... | |
2810 | */ | |
2811 | ||
88f9aafc | 2812 | if (!_cups_strncasecmp(con->header, "Location:", 9)) |
d6ae789d | 2813 | { |
321d8d57 MS |
2814 | if (!cupsdSendHeader(con, HTTP_SEE_OTHER, NULL, CUPSD_AUTH_NONE)) |
2815 | { | |
2816 | cupsdCloseClient(con); | |
2817 | return; | |
2818 | } | |
2819 | ||
07725fee | 2820 | con->sent_header = 2; |
2821 | ||
d6ae789d | 2822 | if (httpPrintf(HTTP(con), "Content-Length: 0\r\n") < 0) |
f7deaa1a | 2823 | return; |
d6ae789d | 2824 | } |
88f9aafc | 2825 | else if (!_cups_strncasecmp(con->header, "Status:", 7)) |
07725fee | 2826 | { |
68b10830 MS |
2827 | cupsdSendError(con, (http_status_t)atoi(con->header + 7), |
2828 | CUPSD_AUTH_NONE); | |
07725fee | 2829 | con->sent_header = 2; |
2830 | } | |
ef416fc2 | 2831 | else |
4744bd90 | 2832 | { |
321d8d57 MS |
2833 | if (!cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE)) |
2834 | { | |
2835 | cupsdCloseClient(con); | |
2836 | return; | |
2837 | } | |
2838 | ||
07725fee | 2839 | con->sent_header = 1; |
ef416fc2 | 2840 | |
4744bd90 | 2841 | if (con->http.version == HTTP_1_1) |
2842 | { | |
4744bd90 | 2843 | if (httpPrintf(HTTP(con), "Transfer-Encoding: chunked\r\n") < 0) |
f7deaa1a | 2844 | return; |
4744bd90 | 2845 | } |
2846 | } | |
ef416fc2 | 2847 | } |
2848 | ||
88f9aafc | 2849 | if (_cups_strncasecmp(con->header, "Status:", 7)) |
68b10830 | 2850 | httpPrintf(HTTP(con), "%s\r\n", con->header); |
ef416fc2 | 2851 | |
ef416fc2 | 2852 | /* |
2853 | * Update buffer... | |
2854 | */ | |
2855 | ||
68b10830 | 2856 | con->header_used -= bufptr - con->header; |
d1c13e16 | 2857 | |
68b10830 MS |
2858 | if (con->header_used > 0) |
2859 | memmove(con->header, bufptr, con->header_used); | |
d1c13e16 | 2860 | |
68b10830 | 2861 | bufptr = con->header - 1; |
ef416fc2 | 2862 | |
2863 | /* | |
2864 | * See if the line was empty... | |
2865 | */ | |
2866 | ||
68b10830 | 2867 | if (field_col == 0) |
d09495fa | 2868 | { |
ef416fc2 | 2869 | con->got_fields = 1; |
d09495fa | 2870 | |
07725fee | 2871 | if (cupsdFlushHeader(con) < 0) |
2872 | { | |
2873 | cupsdCloseClient(con); | |
f7deaa1a | 2874 | return; |
07725fee | 2875 | } |
d09495fa | 2876 | |
2877 | if (con->http.version == HTTP_1_1) | |
2878 | con->http.data_encoding = HTTP_ENCODE_CHUNKED; | |
2879 | } | |
ef416fc2 | 2880 | else |
68b10830 | 2881 | field_col = 0; |
ef416fc2 | 2882 | } |
2883 | else if (*bufptr != '\r') | |
68b10830 | 2884 | field_col ++; |
d1c13e16 | 2885 | } |
ef416fc2 | 2886 | |
68b10830 | 2887 | if (!con->got_fields) |
47879b8b | 2888 | { |
ef416fc2 | 2889 | con->http.activity = time(NULL); |
47879b8b MS |
2890 | return; |
2891 | } | |
ef416fc2 | 2892 | } |
2893 | ||
68b10830 | 2894 | if (con->header_used > 0) |
ef416fc2 | 2895 | { |
68b10830 | 2896 | if (httpWrite2(HTTP(con), con->header, con->header_used) < 0) |
4744bd90 | 2897 | { |
f11a948a | 2898 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
85dda01c | 2899 | "[Client %d] Closing for error %d (%s)", |
f11a948a MS |
2900 | con->http.fd, con->http.error, |
2901 | strerror(con->http.error)); | |
4744bd90 | 2902 | cupsdCloseClient(con); |
f7deaa1a | 2903 | return; |
4744bd90 | 2904 | } |
ef416fc2 | 2905 | |
01ce6322 MS |
2906 | if (con->http.data_encoding == HTTP_ENCODE_CHUNKED) |
2907 | httpFlushWrite(HTTP(con)); | |
ae71f5de | 2908 | |
68b10830 | 2909 | con->bytes += con->header_used; |
ef416fc2 | 2910 | |
4744bd90 | 2911 | if (con->http.state == HTTP_WAITING) |
2912 | bytes = 0; | |
68b10830 MS |
2913 | else |
2914 | bytes = con->header_used; | |
2915 | ||
2916 | con->header_used = 0; | |
4744bd90 | 2917 | } |
ef416fc2 | 2918 | } |
2919 | ||
8b116e60 MS |
2920 | if (bytes <= 0 || |
2921 | (con->http.state != HTTP_GET_SEND && con->http.state != HTTP_POST_SEND)) | |
ef416fc2 | 2922 | { |
38e73f87 | 2923 | if (!con->sent_header && con->pipe_pid) |
94da7e34 MS |
2924 | cupsdSendError(con, HTTP_SERVER_ERROR, CUPSD_AUTH_NONE); |
2925 | else | |
2926 | { | |
2927 | cupsdLogRequest(con, HTTP_OK); | |
ef416fc2 | 2928 | |
94da7e34 | 2929 | httpFlushWrite(HTTP(con)); |
ef416fc2 | 2930 | |
94da7e34 | 2931 | if (con->http.data_encoding == HTTP_ENCODE_CHUNKED && con->sent_header == 1) |
ef416fc2 | 2932 | { |
94da7e34 MS |
2933 | if (httpWrite2(HTTP(con), "", 0) < 0) |
2934 | { | |
f11a948a | 2935 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
85dda01c | 2936 | "[Client %d] Closing for error %d (%s)", |
f11a948a MS |
2937 | con->http.fd, con->http.error, |
2938 | strerror(con->http.error)); | |
94da7e34 MS |
2939 | cupsdCloseClient(con); |
2940 | return; | |
2941 | } | |
ef416fc2 | 2942 | } |
2943 | } | |
2944 | ||
2945 | con->http.state = HTTP_WAITING; | |
2946 | ||
f7deaa1a | 2947 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 2948 | |
2949 | if (con->file >= 0) | |
2950 | { | |
f7deaa1a | 2951 | cupsdRemoveSelect(con->file); |
ef416fc2 | 2952 | |
2953 | if (con->pipe_pid) | |
2954 | cupsdEndProcess(con->pipe_pid, 0); | |
2955 | ||
ef416fc2 | 2956 | close(con->file); |
2957 | con->file = -1; | |
2958 | con->pipe_pid = 0; | |
2959 | } | |
2960 | ||
2961 | if (con->filename) | |
2962 | { | |
ef416fc2 | 2963 | unlink(con->filename); |
2964 | cupsdClearString(&con->filename); | |
2965 | } | |
2966 | ||
2abf387c | 2967 | if (con->request) |
ef416fc2 | 2968 | { |
2969 | ippDelete(con->request); | |
2970 | con->request = NULL; | |
2971 | } | |
2972 | ||
2abf387c | 2973 | if (con->response) |
ef416fc2 | 2974 | { |
2975 | ippDelete(con->response); | |
2976 | con->response = NULL; | |
2977 | } | |
2978 | ||
2979 | cupsdClearString(&con->command); | |
2980 | cupsdClearString(&con->options); | |
b86bc4cf | 2981 | cupsdClearString(&con->query_string); |
ef416fc2 | 2982 | |
2983 | if (!con->http.keep_alive) | |
2984 | { | |
f11a948a | 2985 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
85dda01c | 2986 | "[Client %d] Closing because Keep-Alive disabled.", |
f11a948a | 2987 | con->http.fd); |
ef416fc2 | 2988 | cupsdCloseClient(con); |
f7deaa1a | 2989 | return; |
ef416fc2 | 2990 | } |
f11a948a MS |
2991 | else |
2992 | { | |
2993 | cupsArrayRemove(ActiveClients, con); | |
2994 | cupsdSetBusyState(); | |
2995 | } | |
ef416fc2 | 2996 | } |
2997 | ||
2998 | con->http.activity = time(NULL); | |
f7deaa1a | 2999 | } |
ef416fc2 | 3000 | |
f7deaa1a | 3001 | |
e1d6a774 | 3002 | /* |
3003 | * 'check_if_modified()' - Decode an "If-Modified-Since" line. | |
3004 | */ | |
3005 | ||
3006 | static int /* O - 1 if modified since */ | |
3007 | check_if_modified( | |
3008 | cupsd_client_t *con, /* I - Client connection */ | |
3009 | struct stat *filestats) /* I - File information */ | |
3010 | { | |
3011 | char *ptr; /* Pointer into field */ | |
3012 | time_t date; /* Time/date value */ | |
3013 | off_t size; /* Size/length value */ | |
3014 | ||
3015 | ||
3016 | size = 0; | |
3017 | date = 0; | |
3018 | ptr = con->http.fields[HTTP_FIELD_IF_MODIFIED_SINCE]; | |
3019 | ||
3020 | if (*ptr == '\0') | |
3021 | return (1); | |
3022 | ||
3023 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c | 3024 | "[Client %d] check_if_modified " |
b9faaae1 | 3025 | "filestats=%p(" CUPS_LLFMT ", %d)) If-Modified-Since=\"%s\"", |
85dda01c | 3026 | con->http.fd, filestats, CUPS_LLCAST filestats->st_size, |
b9faaae1 | 3027 | (int)filestats->st_mtime, ptr); |
e1d6a774 | 3028 | |
3029 | while (*ptr != '\0') | |
3030 | { | |
3031 | while (isspace(*ptr) || *ptr == ';') | |
3032 | ptr ++; | |
3033 | ||
88f9aafc | 3034 | if (_cups_strncasecmp(ptr, "length=", 7) == 0) |
e1d6a774 | 3035 | { |
3036 | ptr += 7; | |
3037 | size = strtoll(ptr, NULL, 10); | |
3038 | ||
3039 | while (isdigit(*ptr)) | |
3040 | ptr ++; | |
3041 | } | |
3042 | else if (isalpha(*ptr)) | |
3043 | { | |
3044 | date = httpGetDateTime(ptr); | |
3045 | while (*ptr != '\0' && *ptr != ';') | |
3046 | ptr ++; | |
3047 | } | |
e53920b9 | 3048 | else |
3049 | ptr ++; | |
e1d6a774 | 3050 | } |
3051 | ||
e1d6a774 | 3052 | return ((size != filestats->st_size && size != 0) || |
3053 | (date < filestats->st_mtime && date != 0) || | |
3054 | (size == 0 && date == 0)); | |
3055 | } | |
3056 | ||
3057 | ||
3dfe78b3 MS |
3058 | /* |
3059 | * 'compare_clients()' - Compare two client connections. | |
3060 | */ | |
3061 | ||
3062 | static int /* O - Result of comparison */ | |
3063 | compare_clients(cupsd_client_t *a, /* I - First client */ | |
3064 | cupsd_client_t *b, /* I - Second client */ | |
3065 | void *data) /* I - User data (not used) */ | |
3066 | { | |
3067 | (void)data; | |
3068 | ||
3069 | if (a == b) | |
3070 | return (0); | |
3071 | else if (a < b) | |
3072 | return (-1); | |
3073 | else | |
3074 | return (1); | |
3075 | } | |
3076 | ||
3077 | ||
85dda01c MS |
3078 | /* |
3079 | * 'data_ready()' - Check whether data is available from a client. | |
3080 | */ | |
ef416fc2 | 3081 | |
85dda01c MS |
3082 | static int /* O - 1 if data is ready, 0 otherwise */ |
3083 | data_ready(cupsd_client_t *con) /* I - Client */ | |
3084 | { | |
3085 | if (con->http.used > 0) | |
3086 | return (1); | |
3087 | #ifdef HAVE_SSL | |
3088 | else if (con->http.tls) | |
e1d6a774 | 3089 | { |
85dda01c MS |
3090 | # ifdef HAVE_LIBSSL |
3091 | if (SSL_pending((SSL *)(con->http.tls))) | |
3092 | return (1); | |
3093 | # elif defined(HAVE_GNUTLS) | |
3094 | if (gnutls_record_check_pending(con->http.tls)) | |
3095 | return (1); | |
3096 | # elif defined(HAVE_CDSASSL) | |
3097 | size_t bytes; /* Bytes that are available */ | |
ef416fc2 | 3098 | |
85dda01c MS |
3099 | if (!SSLGetBufferedReadSize(con->http.tls, &bytes) && bytes > 0) |
3100 | return (1); | |
3101 | # endif /* HAVE_LIBSSL */ | |
e1d6a774 | 3102 | } |
85dda01c | 3103 | #endif /* HAVE_SSL */ |
ef416fc2 | 3104 | |
85dda01c MS |
3105 | return (0); |
3106 | } | |
ef416fc2 | 3107 | |
ef416fc2 | 3108 | |
ef416fc2 | 3109 | /* |
3110 | * 'get_file()' - Get a filename and state info. | |
3111 | */ | |
3112 | ||
3113 | static char * /* O - Real filename */ | |
3114 | get_file(cupsd_client_t *con, /* I - Client connection */ | |
3115 | struct stat *filestats, /* O - File information */ | |
3116 | char *filename, /* IO - Filename buffer */ | |
3117 | int len) /* I - Buffer length */ | |
3118 | { | |
3119 | int status; /* Status of filesystem calls */ | |
3120 | char *ptr; /* Pointer info filename */ | |
3121 | int plen; /* Remaining length after pointer */ | |
db1f069b | 3122 | char language[7]; /* Language subdirectory, if any */ |
ef416fc2 | 3123 | |
3124 | ||
3125 | /* | |
f7deaa1a | 3126 | * Figure out the real filename... |
ef416fc2 | 3127 | */ |
3128 | ||
db1f069b MS |
3129 | language[0] = '\0'; |
3130 | ||
7cf5915e | 3131 | if (!strncmp(con->uri, "/ppd/", 5) && !strchr(con->uri + 5, '/')) |
ef416fc2 | 3132 | snprintf(filename, len, "%s%s", ServerRoot, con->uri); |
7cf5915e MS |
3133 | else if (!strncmp(con->uri, "/icons/", 7) && !strchr(con->uri + 7, '/')) |
3134 | { | |
3135 | snprintf(filename, len, "%s/%s", CacheDir, con->uri + 7); | |
3136 | if (access(filename, F_OK) < 0) | |
3137 | snprintf(filename, len, "%s/images/generic.png", DocumentRoot); | |
3138 | } | |
f7deaa1a | 3139 | else if (!strncmp(con->uri, "/rss/", 5) && !strchr(con->uri + 5, '/')) |
3140 | snprintf(filename, len, "%s/rss/%s", CacheDir, con->uri + 5); | |
ef416fc2 | 3141 | else if (!strncmp(con->uri, "/admin/conf/", 12)) |
3142 | snprintf(filename, len, "%s%s", ServerRoot, con->uri + 11); | |
3143 | else if (!strncmp(con->uri, "/admin/log/", 11)) | |
3144 | { | |
2e4ff8af | 3145 | if (!strncmp(con->uri + 11, "access_log", 10) && AccessLog[0] == '/') |
ef416fc2 | 3146 | strlcpy(filename, AccessLog, len); |
2e4ff8af | 3147 | else if (!strncmp(con->uri + 11, "error_log", 9) && ErrorLog[0] == '/') |
ef416fc2 | 3148 | strlcpy(filename, ErrorLog, len); |
2e4ff8af | 3149 | else if (!strncmp(con->uri + 11, "page_log", 8) && PageLog[0] == '/') |
ef416fc2 | 3150 | strlcpy(filename, PageLog, len); |
3151 | else | |
3152 | return (NULL); | |
3153 | } | |
d6ae789d | 3154 | else if (con->language) |
db1f069b MS |
3155 | { |
3156 | snprintf(language, sizeof(language), "/%s", con->language->language); | |
3157 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
3158 | } | |
ef416fc2 | 3159 | else |
3160 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); | |
3161 | ||
3162 | if ((ptr = strchr(filename, '?')) != NULL) | |
3163 | *ptr = '\0'; | |
3164 | ||
3165 | /* | |
3166 | * Grab the status for this language; if there isn't a language-specific file | |
3167 | * then fallback to the default one... | |
3168 | */ | |
3169 | ||
db1f069b | 3170 | if ((status = stat(filename, filestats)) != 0 && language[0] && |
7cf5915e | 3171 | strncmp(con->uri, "/icons/", 7) && |
d6ae789d | 3172 | strncmp(con->uri, "/ppd/", 5) && |
7cf5915e | 3173 | strncmp(con->uri, "/rss/", 5) && |
d6ae789d | 3174 | strncmp(con->uri, "/admin/conf/", 12) && |
3175 | strncmp(con->uri, "/admin/log/", 11)) | |
ef416fc2 | 3176 | { |
3177 | /* | |
d6ae789d | 3178 | * Drop the country code... |
ef416fc2 | 3179 | */ |
3180 | ||
db1f069b MS |
3181 | language[3] = '\0'; |
3182 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
d6ae789d | 3183 | |
3184 | if ((ptr = strchr(filename, '?')) != NULL) | |
3185 | *ptr = '\0'; | |
3186 | ||
3187 | if ((status = stat(filename, filestats)) != 0) | |
ef416fc2 | 3188 | { |
d6ae789d | 3189 | /* |
3190 | * Drop the language prefix and try the root directory... | |
3191 | */ | |
3192 | ||
db1f069b | 3193 | language[0] = '\0'; |
ef416fc2 | 3194 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); |
3195 | ||
3196 | if ((ptr = strchr(filename, '?')) != NULL) | |
3197 | *ptr = '\0'; | |
3198 | ||
3199 | status = stat(filename, filestats); | |
3200 | } | |
3201 | } | |
3202 | ||
3203 | /* | |
3204 | * If we're found a directory, get the index.html file instead... | |
3205 | */ | |
3206 | ||
3207 | if (!status && S_ISDIR(filestats->st_mode)) | |
3208 | { | |
db1f069b MS |
3209 | /* |
3210 | * Make sure the URI ends with a slash... | |
3211 | */ | |
ef416fc2 | 3212 | |
db1f069b MS |
3213 | if (con->uri[strlen(con->uri) - 1] != '/') |
3214 | strlcat(con->uri, "/", sizeof(con->uri)); | |
ef416fc2 | 3215 | |
db1f069b MS |
3216 | /* |
3217 | * Find the directory index file, trying every language... | |
3218 | */ | |
ef416fc2 | 3219 | |
db1f069b | 3220 | do |
ef416fc2 | 3221 | { |
db1f069b MS |
3222 | if (status && language[0]) |
3223 | { | |
3224 | /* | |
3225 | * Try a different language subset... | |
3226 | */ | |
3227 | ||
3228 | if (language[3]) | |
3229 | language[0] = '\0'; /* Strip country code */ | |
3230 | else | |
3231 | language[0] = '\0'; /* Strip language */ | |
3232 | } | |
3233 | ||
3234 | /* | |
3235 | * Look for the index file... | |
3236 | */ | |
3237 | ||
3238 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
3239 | ||
3240 | if ((ptr = strchr(filename, '?')) != NULL) | |
3241 | *ptr = '\0'; | |
3242 | ||
3243 | ptr = filename + strlen(filename); | |
3244 | plen = len - (ptr - filename); | |
3245 | ||
3246 | strlcpy(ptr, "index.html", plen); | |
ef416fc2 | 3247 | status = stat(filename, filestats); |
db1f069b MS |
3248 | |
3249 | #ifdef HAVE_JAVA | |
3250 | if (status) | |
3251 | { | |
3252 | strlcpy(ptr, "index.class", plen); | |
3253 | status = stat(filename, filestats); | |
3254 | } | |
ef416fc2 | 3255 | #endif /* HAVE_JAVA */ |
3256 | ||
3257 | #ifdef HAVE_PERL | |
db1f069b MS |
3258 | if (status) |
3259 | { | |
3260 | strlcpy(ptr, "index.pl", plen); | |
3261 | status = stat(filename, filestats); | |
3262 | } | |
ef416fc2 | 3263 | #endif /* HAVE_PERL */ |
3264 | ||
3265 | #ifdef HAVE_PHP | |
db1f069b MS |
3266 | if (status) |
3267 | { | |
3268 | strlcpy(ptr, "index.php", plen); | |
3269 | status = stat(filename, filestats); | |
3270 | } | |
ef416fc2 | 3271 | #endif /* HAVE_PHP */ |
3272 | ||
3273 | #ifdef HAVE_PYTHON | |
db1f069b MS |
3274 | if (status) |
3275 | { | |
3276 | strlcpy(ptr, "index.pyc", plen); | |
3277 | status = stat(filename, filestats); | |
3278 | } | |
ef416fc2 | 3279 | |
db1f069b MS |
3280 | if (status) |
3281 | { | |
3282 | strlcpy(ptr, "index.py", plen); | |
3283 | status = stat(filename, filestats); | |
3284 | } | |
ef416fc2 | 3285 | #endif /* HAVE_PYTHON */ |
db1f069b MS |
3286 | |
3287 | } | |
3288 | while (status && language[0]); | |
ef416fc2 | 3289 | } |
3290 | ||
b9faaae1 | 3291 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
85dda01c MS |
3292 | "[Client %d] get_file filestats=%p, filename=%p, len=%d, " |
3293 | "returning \"%s\".", con->http.fd, filestats, filename, len, | |
b9faaae1 | 3294 | status ? "(null)" : filename); |
ef416fc2 | 3295 | |
ef416fc2 | 3296 | if (status) |
3297 | return (NULL); | |
3298 | else | |
3299 | return (filename); | |
3300 | } | |
3301 | ||
3302 | ||
3303 | /* | |
3304 | * 'install_conf_file()' - Install a configuration file. | |
3305 | */ | |
3306 | ||
3307 | static http_status_t /* O - Status */ | |
3308 | install_conf_file(cupsd_client_t *con) /* I - Connection */ | |
3309 | { | |
321d8d57 MS |
3310 | char filename[1024]; /* Configuration filename */ |
3311 | mode_t mode; /* Permissions */ | |
ef416fc2 | 3312 | cups_file_t *in, /* Input file */ |
3313 | *out; /* Output file */ | |
321d8d57 MS |
3314 | char buffer[16384]; /* Copy buffer */ |
3315 | ssize_t bytes; /* Number of bytes */ | |
ef416fc2 | 3316 | |
3317 | ||
3318 | /* | |
321d8d57 | 3319 | * Open the request file... |
ef416fc2 | 3320 | */ |
3321 | ||
321d8d57 | 3322 | if ((in = cupsFileOpen(con->filename, "rb")) == NULL) |
ef416fc2 | 3323 | { |
321d8d57 MS |
3324 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open request file \"%s\": %s", |
3325 | con->filename, strerror(errno)); | |
3326 | return (HTTP_SERVER_ERROR); | |
ef416fc2 | 3327 | } |
3328 | ||
3329 | /* | |
321d8d57 | 3330 | * Open the new config file... |
ef416fc2 | 3331 | */ |
3332 | ||
321d8d57 MS |
3333 | snprintf(filename, sizeof(filename), "%s%s", ServerRoot, con->uri + 11); |
3334 | if (!strcmp(con->uri, "/admin/conf/printers.conf")) | |
3335 | mode = ConfigFilePerm & 0600; | |
3336 | else | |
3337 | mode = ConfigFilePerm; | |
ef416fc2 | 3338 | |
321d8d57 | 3339 | if ((out = cupsdCreateConfFile(filename, mode)) == NULL) |
ef416fc2 | 3340 | { |
3341 | cupsFileClose(in); | |
ef416fc2 | 3342 | return (HTTP_SERVER_ERROR); |
3343 | } | |
3344 | ||
321d8d57 | 3345 | cupsdLogMessage(CUPSD_LOG_INFO, "Installing config file \"%s\"...", filename); |
ef416fc2 | 3346 | |
3347 | /* | |
3348 | * Copy from the request to the new config file... | |
3349 | */ | |
3350 | ||
3351 | while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0) | |
3352 | if (cupsFileWrite(out, buffer, bytes) < bytes) | |
3353 | { | |
3354 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
321d8d57 MS |
3355 | "Unable to copy to config file \"%s\": %s", |
3356 | filename, strerror(errno)); | |
ef416fc2 | 3357 | |
3358 | cupsFileClose(in); | |
3359 | cupsFileClose(out); | |
321d8d57 MS |
3360 | |
3361 | snprintf(filename, sizeof(filename), "%s%s.N", ServerRoot, con->uri + 11); | |
3362 | cupsdRemoveFile(filename); | |
ef416fc2 | 3363 | |
3364 | return (HTTP_SERVER_ERROR); | |
3365 | } | |
3366 | ||
3367 | /* | |
3368 | * Close the files... | |
3369 | */ | |
3370 | ||
3371 | cupsFileClose(in); | |
ef416fc2 | 3372 | |
321d8d57 | 3373 | if (cupsdCloseCreatedConfFile(out, filename)) |
ef416fc2 | 3374 | return (HTTP_SERVER_ERROR); |
ef416fc2 | 3375 | |
3376 | /* | |
3377 | * Remove the request file... | |
3378 | */ | |
3379 | ||
321d8d57 | 3380 | cupsdRemoveFile(con->filename); |
ef416fc2 | 3381 | cupsdClearString(&con->filename); |
3382 | ||
ef416fc2 | 3383 | /* |
3384 | * If the cupsd.conf file was updated, set the NeedReload flag... | |
3385 | */ | |
3386 | ||
3387 | if (!strcmp(con->uri, "/admin/conf/cupsd.conf")) | |
3388 | NeedReload = RELOAD_CUPSD; | |
3389 | else | |
3390 | NeedReload = RELOAD_ALL; | |
3391 | ||
3392 | ReloadTime = time(NULL); | |
3393 | ||
3394 | /* | |
3395 | * Return that the file was created successfully... | |
3396 | */ | |
3397 | ||
3398 | return (HTTP_CREATED); | |
3399 | } | |
3400 | ||
3401 | ||
e1d6a774 | 3402 | /* |
3403 | * 'is_cgi()' - Is the resource a CGI script/program? | |
3404 | */ | |
3405 | ||
3406 | static int /* O - 1 = CGI, 0 = file */ | |
3407 | is_cgi(cupsd_client_t *con, /* I - Client connection */ | |
3408 | const char *filename, /* I - Real filename */ | |
3409 | struct stat *filestats, /* I - File information */ | |
3410 | mime_type_t *type) /* I - MIME type */ | |
3411 | { | |
3412 | const char *options; /* Options on URL */ | |
3413 | ||
3414 | ||
e1d6a774 | 3415 | /* |
3416 | * Get the options, if any... | |
3417 | */ | |
3418 | ||
3419 | if ((options = strchr(con->uri, '?')) != NULL) | |
a0f6818e MS |
3420 | { |
3421 | options ++; | |
3422 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", options); | |
3423 | } | |
b86bc4cf | 3424 | |
e1d6a774 | 3425 | /* |
3426 | * Check for known types... | |
3427 | */ | |
3428 | ||
88f9aafc | 3429 | if (!type || _cups_strcasecmp(type->super, "application")) |
e1d6a774 | 3430 | { |
b9faaae1 | 3431 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
85dda01c MS |
3432 | "[Client %d] is_cgi filename=\"%s\", filestats=%p, " |
3433 | "type=%s/%s, returning 0", con->http.fd, filename, | |
3434 | filestats, type ? type->super : "unknown", | |
b9faaae1 | 3435 | type ? type->type : "unknown"); |
e1d6a774 | 3436 | return (0); |
3437 | } | |
3438 | ||
88f9aafc | 3439 | if (!_cups_strcasecmp(type->type, "x-httpd-cgi") && |
e1d6a774 | 3440 | (filestats->st_mode & 0111)) |
3441 | { | |
3442 | /* | |
3443 | * "application/x-httpd-cgi" is a CGI script. | |
3444 | */ | |
3445 | ||
3446 | cupsdSetString(&con->command, filename); | |
3447 | ||
a0f6818e MS |
3448 | if (options) |
3449 | cupsdSetStringf(&con->options, " %s", options); | |
e1d6a774 | 3450 | |
3451 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
3452 | "[Client %d] is_cgi filename=\"%s\", filestats=%p, " |
3453 | "type=%s/%s, returning 1", con->http.fd, filename, | |
3454 | filestats, type->super, type->type); | |
e1d6a774 | 3455 | return (1); |
3456 | } | |
3457 | #ifdef HAVE_JAVA | |
88f9aafc | 3458 | else if (!_cups_strcasecmp(type->type, "x-httpd-java")) |
e1d6a774 | 3459 | { |
3460 | /* | |
3461 | * "application/x-httpd-java" is a Java servlet. | |
3462 | */ | |
3463 | ||
3464 | cupsdSetString(&con->command, CUPS_JAVA); | |
3465 | ||
3466 | if (options) | |
b94498cf | 3467 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3468 | else |
b94498cf | 3469 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3470 | |
3471 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
3472 | "[Client %d] is_cgi filename=\"%s\", filestats=%p, " |
3473 | "type=%s/%s, returning 1", con->http.fd, filename, | |
3474 | filestats, type->super, type->type); | |
e1d6a774 | 3475 | return (1); |
3476 | } | |
3477 | #endif /* HAVE_JAVA */ | |
3478 | #ifdef HAVE_PERL | |
88f9aafc | 3479 | else if (!_cups_strcasecmp(type->type, "x-httpd-perl")) |
e1d6a774 | 3480 | { |
3481 | /* | |
3482 | * "application/x-httpd-perl" is a Perl page. | |
3483 | */ | |
3484 | ||
3485 | cupsdSetString(&con->command, CUPS_PERL); | |
3486 | ||
3487 | if (options) | |
b94498cf | 3488 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3489 | else |
b94498cf | 3490 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3491 | |
3492 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
3493 | "[Client %d] is_cgi filename=\"%s\", filestats=%p, " |
3494 | "type=%s/%s, returning 1", con->http.fd, filename, | |
3495 | filestats, type->super, type->type); | |
e1d6a774 | 3496 | return (1); |
3497 | } | |
3498 | #endif /* HAVE_PERL */ | |
3499 | #ifdef HAVE_PHP | |
88f9aafc | 3500 | else if (!_cups_strcasecmp(type->type, "x-httpd-php")) |
e1d6a774 | 3501 | { |
3502 | /* | |
3503 | * "application/x-httpd-php" is a PHP page. | |
3504 | */ | |
3505 | ||
3506 | cupsdSetString(&con->command, CUPS_PHP); | |
3507 | ||
3508 | if (options) | |
b94498cf | 3509 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3510 | else |
b94498cf | 3511 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3512 | |
3513 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
3514 | "[Client %d] is_cgi filename=\"%s\", filestats=%p, " |
3515 | "type=%s/%s, returning 1", con->http.fd, filename, | |
3516 | filestats, type->super, type->type); | |
e1d6a774 | 3517 | return (1); |
3518 | } | |
3519 | #endif /* HAVE_PHP */ | |
3520 | #ifdef HAVE_PYTHON | |
88f9aafc | 3521 | else if (!_cups_strcasecmp(type->type, "x-httpd-python")) |
e1d6a774 | 3522 | { |
3523 | /* | |
3524 | * "application/x-httpd-python" is a Python page. | |
3525 | */ | |
3526 | ||
3527 | cupsdSetString(&con->command, CUPS_PYTHON); | |
3528 | ||
3529 | if (options) | |
b94498cf | 3530 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3531 | else |
b94498cf | 3532 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3533 | |
3534 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
3535 | "[Client %d] is_cgi filename=\"%s\", filestats=%p, " |
3536 | "type=%s/%s, returning 1", con->http.fd, filename, | |
3537 | filestats, type->super, type->type); | |
e1d6a774 | 3538 | return (1); |
3539 | } | |
3540 | #endif /* HAVE_PYTHON */ | |
3541 | ||
b9faaae1 | 3542 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
85dda01c MS |
3543 | "[Client %d] is_cgi filename=\"%s\", filestats=%p, " |
3544 | "type=%s/%s, returning 0", con->http.fd, filename, | |
3545 | filestats, type->super, type->type); | |
e1d6a774 | 3546 | return (0); |
3547 | } | |
3548 | ||
3549 | ||
ef416fc2 | 3550 | /* |
3551 | * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. ".."). | |
3552 | */ | |
3553 | ||
3554 | static int /* O - 0 if relative, 1 if absolute */ | |
3555 | is_path_absolute(const char *path) /* I - Input path */ | |
3556 | { | |
3557 | /* | |
3558 | * Check for a leading slash... | |
3559 | */ | |
3560 | ||
3561 | if (path[0] != '/') | |
3562 | return (0); | |
3563 | ||
3564 | /* | |
3565 | * Check for "/.." in the path... | |
3566 | */ | |
3567 | ||
3568 | while ((path = strstr(path, "/..")) != NULL) | |
3569 | { | |
3570 | if (!path[3] || path[3] == '/') | |
3571 | return (0); | |
3572 | ||
3573 | path ++; | |
3574 | } | |
3575 | ||
3576 | /* | |
3577 | * If we haven't found any relative paths, return 1 indicating an | |
3578 | * absolute path... | |
3579 | */ | |
3580 | ||
3581 | return (1); | |
3582 | } | |
3583 | ||
3584 | ||
3585 | /* | |
3586 | * 'pipe_command()' - Pipe the output of a command to the remote client. | |
3587 | */ | |
3588 | ||
3589 | static int /* O - Process ID */ | |
3590 | pipe_command(cupsd_client_t *con, /* I - Client connection */ | |
3591 | int infile, /* I - Standard input for command */ | |
3592 | int *outfile, /* O - Standard output for command */ | |
3593 | char *command, /* I - Command to run */ | |
3594 | char *options, /* I - Options for command */ | |
3595 | int root) /* I - Run as root? */ | |
3596 | { | |
3597 | int i; /* Looping var */ | |
3598 | int pid; /* Process ID */ | |
b423cd4c | 3599 | char *commptr, /* Command string pointer */ |
3600 | commch; /* Command string character */ | |
ef416fc2 | 3601 | char *uriptr; /* URI string pointer */ |
3602 | int fds[2]; /* Pipe FDs */ | |
3603 | int argc; /* Number of arguments */ | |
3604 | int envc; /* Number of environment variables */ | |
3605 | char argbuf[10240], /* Argument buffer */ | |
3606 | *argv[100], /* Argument strings */ | |
b94498cf | 3607 | *envp[MAX_ENV + 20]; /* Environment variables */ |
c7017ecc | 3608 | char auth_type[256], /* AUTH_TYPE environment variable */ |
b94498cf | 3609 | content_length[1024], /* CONTENT_LENGTH environment variable */ |
ef416fc2 | 3610 | content_type[1024], /* CONTENT_TYPE environment variable */ |
3611 | http_cookie[32768], /* HTTP_COOKIE environment variable */ | |
f7deaa1a | 3612 | http_referer[1024], /* HTTP_REFERER environment variable */ |
ef416fc2 | 3613 | http_user_agent[1024], /* HTTP_USER_AGENT environment variable */ |
3614 | lang[1024], /* LANG environment variable */ | |
b423cd4c | 3615 | path_info[1024], /* PATH_INFO environment variable */ |
ef416fc2 | 3616 | remote_addr[1024], /* REMOTE_ADDR environment variable */ |
3617 | remote_host[1024], /* REMOTE_HOST environment variable */ | |
3618 | remote_user[1024], /* REMOTE_USER environment variable */ | |
b94498cf | 3619 | script_filename[1024], /* SCRIPT_FILENAME environment variable */ |
ef416fc2 | 3620 | script_name[1024], /* SCRIPT_NAME environment variable */ |
3621 | server_name[1024], /* SERVER_NAME environment variable */ | |
3622 | server_port[1024]; /* SERVER_PORT environment variable */ | |
7dfedb92 | 3623 | ipp_attribute_t *attr; /* attributes-natural-language attribute */ |
e07d4801 | 3624 | void *ccache = NULL; /* Kerberos credentials */ |
ef416fc2 | 3625 | |
3626 | ||
3627 | /* | |
3628 | * Parse a copy of the options string, which is of the form: | |
3629 | * | |
b423cd4c | 3630 | * argument+argument+argument |
3631 | * ?argument+argument+argument | |
3632 | * param=value¶m=value | |
3633 | * ?param=value¶m=value | |
3634 | * /name?argument+argument+argument | |
3635 | * /name?param=value¶m=value | |
ef416fc2 | 3636 | * |
3637 | * If the string contains an "=" character after the initial name, | |
3638 | * then we treat it as a HTTP GET form request and make a copy of | |
3639 | * the remaining string for the environment variable. | |
3640 | * | |
3641 | * The string is always parsed out as command-line arguments, to | |
3642 | * be consistent with Apache... | |
3643 | */ | |
3644 | ||
3645 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
85dda01c MS |
3646 | "[Client %d] pipe_command infile=%d, outfile=%p, " |
3647 | "command=\"%s\", options=\"%s\", root=%d", | |
3648 | con->http.fd, infile, outfile, command, | |
b9faaae1 | 3649 | options ? options : "(null)", root); |
ef416fc2 | 3650 | |
b86bc4cf | 3651 | argv[0] = command; |
ef416fc2 | 3652 | |
b423cd4c | 3653 | if (options) |
c7017ecc MS |
3654 | { |
3655 | commptr = options; | |
3656 | if (*commptr == ' ') | |
3657 | commptr ++; | |
3658 | strlcpy(argbuf, commptr, sizeof(argbuf)); | |
3659 | } | |
b423cd4c | 3660 | else |
3661 | argbuf[0] = '\0'; | |
3662 | ||
3663 | if (argbuf[0] == '/') | |
ef416fc2 | 3664 | { |
3665 | /* | |
b423cd4c | 3666 | * Found some trailing path information, set PATH_INFO... |
ef416fc2 | 3667 | */ |
3668 | ||
b423cd4c | 3669 | if ((commptr = strchr(argbuf, '?')) == NULL) |
3670 | commptr = argbuf + strlen(argbuf); | |
ef416fc2 | 3671 | |
b423cd4c | 3672 | commch = *commptr; |
3673 | *commptr = '\0'; | |
3674 | snprintf(path_info, sizeof(path_info), "PATH_INFO=%s", argbuf); | |
3675 | *commptr = commch; | |
3676 | } | |
3677 | else | |
3678 | { | |
3679 | commptr = argbuf; | |
3680 | path_info[0] = '\0'; | |
b94498cf | 3681 | |
3682 | if (*commptr == ' ') | |
3683 | commptr ++; | |
b423cd4c | 3684 | } |
ef416fc2 | 3685 | |
b86bc4cf | 3686 | if (*commptr == '?' && con->operation == HTTP_GET && !con->query_string) |
b423cd4c | 3687 | { |
3688 | commptr ++; | |
b86bc4cf | 3689 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", commptr); |
b423cd4c | 3690 | } |
ef416fc2 | 3691 | |
b423cd4c | 3692 | argc = 1; |
ef416fc2 | 3693 | |
b423cd4c | 3694 | if (*commptr) |
3695 | { | |
3696 | argv[argc ++] = commptr; | |
ef416fc2 | 3697 | |
b423cd4c | 3698 | for (; *commptr && argc < 99; commptr ++) |
3699 | { | |
ef416fc2 | 3700 | /* |
b423cd4c | 3701 | * Break arguments whenever we see a + or space... |
ef416fc2 | 3702 | */ |
3703 | ||
b423cd4c | 3704 | if (*commptr == ' ' || *commptr == '+') |
3705 | { | |
3706 | while (*commptr == ' ' || *commptr == '+') | |
3707 | *commptr++ = '\0'; | |
ef416fc2 | 3708 | |
b423cd4c | 3709 | /* |
3710 | * If we don't have a blank string, save it as another argument... | |
3711 | */ | |
ef416fc2 | 3712 | |
b423cd4c | 3713 | if (*commptr) |
3714 | { | |
3715 | argv[argc] = commptr; | |
3716 | argc ++; | |
3717 | } | |
3718 | else | |
3719 | break; | |
3720 | } | |
3721 | else if (*commptr == '%' && isxdigit(commptr[1] & 255) && | |
3722 | isxdigit(commptr[2] & 255)) | |
3723 | { | |
3724 | /* | |
3725 | * Convert the %xx notation to the individual character. | |
3726 | */ | |
ef416fc2 | 3727 | |
b423cd4c | 3728 | if (commptr[1] >= '0' && commptr[1] <= '9') |
3729 | *commptr = (commptr[1] - '0') << 4; | |
3730 | else | |
3731 | *commptr = (tolower(commptr[1]) - 'a' + 10) << 4; | |
ef416fc2 | 3732 | |
b423cd4c | 3733 | if (commptr[2] >= '0' && commptr[2] <= '9') |
3734 | *commptr |= commptr[2] - '0'; | |
3735 | else | |
3736 | *commptr |= tolower(commptr[2]) - 'a' + 10; | |
ef416fc2 | 3737 | |
b423cd4c | 3738 | _cups_strcpy(commptr + 1, commptr + 3); |
ef416fc2 | 3739 | |
b423cd4c | 3740 | /* |
3741 | * Check for a %00 and break if that is the case... | |
3742 | */ | |
ef416fc2 | 3743 | |
b423cd4c | 3744 | if (!*commptr) |
3745 | break; | |
3746 | } | |
ef416fc2 | 3747 | } |
3748 | } | |
3749 | ||
3750 | argv[argc] = NULL; | |
3751 | ||
ef416fc2 | 3752 | /* |
3753 | * Setup the environment variables as needed... | |
3754 | */ | |
3755 | ||
b94498cf | 3756 | if (con->username[0]) |
3757 | { | |
c7017ecc | 3758 | snprintf(auth_type, sizeof(auth_type), "AUTH_TYPE=%s", |
b94498cf | 3759 | httpGetField(HTTP(con), HTTP_FIELD_AUTHORIZATION)); |
3760 | ||
3761 | if ((uriptr = strchr(auth_type + 10, ' ')) != NULL) | |
3762 | *uriptr = '\0'; | |
3763 | } | |
3764 | else | |
3765 | auth_type[0] = '\0'; | |
3766 | ||
7dfedb92 MS |
3767 | if (con->request && |
3768 | (attr = ippFindAttribute(con->request, "attributes-natural-language", | |
3769 | IPP_TAG_LANGUAGE)) != NULL) | |
3770 | { | |
3771 | switch (strlen(attr->values[0].string.text)) | |
3772 | { | |
3773 | default : | |
3774 | /* | |
3775 | * This is an unknown or badly formatted language code; use | |
3776 | * the POSIX locale... | |
3777 | */ | |
3778 | ||
5a9febac | 3779 | strlcpy(lang, "LANG=C", sizeof(lang)); |
7dfedb92 MS |
3780 | break; |
3781 | ||
3782 | case 2 : | |
3783 | /* | |
3784 | * Just the language code (ll)... | |
3785 | */ | |
3786 | ||
3787 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", | |
3788 | attr->values[0].string.text); | |
3789 | break; | |
3790 | ||
3791 | case 5 : | |
3792 | /* | |
3793 | * Language and country code (ll-cc)... | |
3794 | */ | |
3795 | ||
3796 | snprintf(lang, sizeof(lang), "LANG=%c%c_%c%c.UTF8", | |
3797 | attr->values[0].string.text[0], | |
3798 | attr->values[0].string.text[1], | |
3799 | toupper(attr->values[0].string.text[3] & 255), | |
3800 | toupper(attr->values[0].string.text[4] & 255)); | |
3801 | break; | |
3802 | } | |
3803 | } | |
3804 | else if (con->language) | |
3805 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", con->language->language); | |
ef416fc2 | 3806 | else |
5a9febac | 3807 | strlcpy(lang, "LANG=C", sizeof(lang)); |
ef416fc2 | 3808 | |
5a9febac | 3809 | strlcpy(remote_addr, "REMOTE_ADDR=", sizeof(remote_addr)); |
ef416fc2 | 3810 | httpAddrString(con->http.hostaddr, remote_addr + 12, |
3811 | sizeof(remote_addr) - 12); | |
3812 | ||
3813 | snprintf(remote_host, sizeof(remote_host), "REMOTE_HOST=%s", | |
3814 | con->http.hostname); | |
3815 | ||
3816 | snprintf(script_name, sizeof(script_name), "SCRIPT_NAME=%s", con->uri); | |
3817 | if ((uriptr = strchr(script_name, '?')) != NULL) | |
3818 | *uriptr = '\0'; | |
3819 | ||
b94498cf | 3820 | snprintf(script_filename, sizeof(script_filename), "SCRIPT_FILENAME=%s%s", |
3821 | DocumentRoot, script_name + 12); | |
3822 | ||
ef416fc2 | 3823 | sprintf(server_port, "SERVER_PORT=%d", con->serverport); |
3824 | ||
0268488e MS |
3825 | if (con->http.fields[HTTP_FIELD_HOST][0]) |
3826 | { | |
3827 | char *nameptr; /* Pointer to ":port" */ | |
3828 | ||
3829 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
3830 | con->http.fields[HTTP_FIELD_HOST]); | |
3831 | if ((nameptr = strrchr(server_name, ':')) != NULL && !strchr(nameptr, ']')) | |
3832 | *nameptr = '\0'; /* Strip trailing ":port" */ | |
3833 | } | |
3834 | else | |
3835 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
3836 | con->servername); | |
ef416fc2 | 3837 | |
3838 | envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0]))); | |
3839 | ||
b94498cf | 3840 | if (auth_type[0]) |
3841 | envp[envc ++] = auth_type; | |
3842 | ||
ef416fc2 | 3843 | envp[envc ++] = lang; |
3844 | envp[envc ++] = "REDIRECT_STATUS=1"; | |
b94498cf | 3845 | envp[envc ++] = "GATEWAY_INTERFACE=CGI/1.1"; |
ef416fc2 | 3846 | envp[envc ++] = server_name; |
3847 | envp[envc ++] = server_port; | |
3848 | envp[envc ++] = remote_addr; | |
3849 | envp[envc ++] = remote_host; | |
3850 | envp[envc ++] = script_name; | |
b94498cf | 3851 | envp[envc ++] = script_filename; |
ef416fc2 | 3852 | |
b423cd4c | 3853 | if (path_info[0]) |
3854 | envp[envc ++] = path_info; | |
3855 | ||
ef416fc2 | 3856 | if (con->username[0]) |
3857 | { | |
3858 | snprintf(remote_user, sizeof(remote_user), "REMOTE_USER=%s", con->username); | |
3859 | ||
3860 | envp[envc ++] = remote_user; | |
3861 | } | |
3862 | ||
3863 | if (con->http.version == HTTP_1_1) | |
3864 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.1"; | |
3865 | else if (con->http.version == HTTP_1_0) | |
3866 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.0"; | |
3867 | else | |
3868 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/0.9"; | |
3869 | ||
3870 | if (con->http.cookie) | |
3871 | { | |
3872 | snprintf(http_cookie, sizeof(http_cookie), "HTTP_COOKIE=%s", | |
3873 | con->http.cookie); | |
3874 | envp[envc ++] = http_cookie; | |
3875 | } | |
3876 | ||
3877 | if (con->http.fields[HTTP_FIELD_USER_AGENT][0]) | |
3878 | { | |
3879 | snprintf(http_user_agent, sizeof(http_user_agent), "HTTP_USER_AGENT=%s", | |
3880 | con->http.fields[HTTP_FIELD_USER_AGENT]); | |
3881 | envp[envc ++] = http_user_agent; | |
3882 | } | |
3883 | ||
f7deaa1a | 3884 | if (con->http.fields[HTTP_FIELD_REFERER][0]) |
3885 | { | |
3886 | snprintf(http_referer, sizeof(http_referer), "HTTP_REFERER=%s", | |
3887 | con->http.fields[HTTP_FIELD_REFERER]); | |
3888 | envp[envc ++] = http_referer; | |
3889 | } | |
3890 | ||
ef416fc2 | 3891 | if (con->operation == HTTP_GET) |
3892 | { | |
ef416fc2 | 3893 | envp[envc ++] = "REQUEST_METHOD=GET"; |
3894 | ||
b86bc4cf | 3895 | if (con->query_string) |
ef416fc2 | 3896 | { |
3897 | /* | |
3898 | * Add GET form variables after ?... | |
3899 | */ | |
3900 | ||
b86bc4cf | 3901 | envp[envc ++] = con->query_string; |
ef416fc2 | 3902 | } |
3dfe78b3 MS |
3903 | else |
3904 | envp[envc ++] = "QUERY_STRING="; | |
ef416fc2 | 3905 | } |
3906 | else | |
3907 | { | |
e1d6a774 | 3908 | sprintf(content_length, "CONTENT_LENGTH=" CUPS_LLFMT, |
3909 | CUPS_LLCAST con->bytes); | |
ef416fc2 | 3910 | snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s", |
3911 | con->http.fields[HTTP_FIELD_CONTENT_TYPE]); | |
3912 | ||
3913 | envp[envc ++] = "REQUEST_METHOD=POST"; | |
3914 | envp[envc ++] = content_length; | |
3915 | envp[envc ++] = content_type; | |
3916 | } | |
3917 | ||
3918 | /* | |
3919 | * Tell the CGI if we are using encryption... | |
3920 | */ | |
3921 | ||
a74454a7 | 3922 | if (con->http.tls) |
ef416fc2 | 3923 | envp[envc ++] = "HTTPS=ON"; |
3924 | ||
3925 | /* | |
3926 | * Terminate the environment array... | |
3927 | */ | |
3928 | ||
3929 | envp[envc] = NULL; | |
3930 | ||
38e73f87 | 3931 | if (LogLevel >= CUPSD_LOG_DEBUG) |
ef416fc2 | 3932 | { |
3933 | for (i = 0; i < argc; i ++) | |
38e73f87 MS |
3934 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
3935 | "[CGI] argv[%d] = \"%s\"", i, argv[i]); | |
ef416fc2 | 3936 | for (i = 0; i < envc; i ++) |
38e73f87 MS |
3937 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
3938 | "[CGI] envp[%d] = \"%s\"", i, envp[i]); | |
ef416fc2 | 3939 | } |
3940 | ||
3941 | /* | |
3942 | * Create a pipe for the output... | |
3943 | */ | |
3944 | ||
3945 | if (cupsdOpenPipe(fds)) | |
3946 | { | |
38e73f87 | 3947 | cupsdLogMessage(CUPSD_LOG_ERROR, "[CGI] Unable to create pipe for %s - %s", |
ef416fc2 | 3948 | argv[0], strerror(errno)); |
3949 | return (0); | |
3950 | } | |
3951 | ||
3952 | /* | |
3953 | * Then execute the command... | |
3954 | */ | |
3955 | ||
3956 | if (cupsdStartProcess(command, argv, envp, infile, fds[1], CGIPipes[1], | |
38e73f87 | 3957 | -1, -1, root, DefaultProfile, NULL, &pid) < 0) |
ef416fc2 | 3958 | { |
3959 | /* | |
3960 | * Error - can't fork! | |
3961 | */ | |
3962 | ||
38e73f87 | 3963 | cupsdLogMessage(CUPSD_LOG_ERROR, "[CGI] Unable to start %s - %s", argv[0], |
ef416fc2 | 3964 | strerror(errno)); |
3965 | ||
3966 | cupsdClosePipe(fds); | |
3967 | pid = 0; | |
3968 | } | |
3969 | else | |
3970 | { | |
3971 | /* | |
3972 | * Fork successful - return the PID... | |
3973 | */ | |
3974 | ||
3975 | if (con->username[0]) | |
5bd77a73 | 3976 | cupsdAddCert(pid, con->username, ccache); |
ef416fc2 | 3977 | |
38e73f87 | 3978 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[CGI] Started %s (PID %d)", command, pid); |
ef416fc2 | 3979 | |
3980 | *outfile = fds[0]; | |
3981 | close(fds[1]); | |
3982 | } | |
3983 | ||
ef416fc2 | 3984 | return (pid); |
3985 | } | |
3986 | ||
3987 | ||
e07d4801 MS |
3988 | /* |
3989 | * 'valid_host()' - Is the Host: field valid? | |
3990 | */ | |
3991 | ||
3992 | static int /* O - 1 if valid, 0 if not */ | |
3993 | valid_host(cupsd_client_t *con) /* I - Client connection */ | |
3994 | { | |
3995 | cupsd_alias_t *a; /* Current alias */ | |
3996 | cupsd_netif_t *netif; /* Current network interface */ | |
3997 | const char *host, /* Host field */ | |
3998 | *end; /* End character */ | |
3999 | ||
4000 | ||
4001 | host = con->http.fields[HTTP_FIELD_HOST]; | |
4002 | ||
4003 | if (httpAddrLocalhost(con->http.hostaddr)) | |
4004 | { | |
4005 | /* | |
4006 | * Only allow "localhost" or the equivalent IPv4 or IPv6 numerical | |
4007 | * addresses when accessing CUPS via the loopback interface... | |
4008 | */ | |
4009 | ||
88f9aafc MS |
4010 | return (!_cups_strcasecmp(host, "localhost") || |
4011 | !_cups_strncasecmp(host, "localhost:", 10) || | |
4012 | !_cups_strcasecmp(host, "localhost.") || | |
4013 | !_cups_strncasecmp(host, "localhost.:", 11) || | |
e07d4801 | 4014 | #ifdef __linux |
88f9aafc MS |
4015 | !_cups_strcasecmp(host, "localhost.localdomain") || |
4016 | !_cups_strncasecmp(host, "localhost.localdomain:", 22) || | |
e07d4801 MS |
4017 | #endif /* __linux */ |
4018 | !strcmp(host, "127.0.0.1") || | |
4019 | !strncmp(host, "127.0.0.1:", 10) || | |
4020 | !strcmp(host, "[::1]") || | |
4021 | !strncmp(host, "[::1]:", 6)); | |
4022 | } | |
4023 | ||
37e7e6e0 | 4024 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
e07d4801 MS |
4025 | /* |
4026 | * Check if the hostname is something.local (Bonjour); if so, allow it. | |
4027 | */ | |
4028 | ||
a29fd7dd MS |
4029 | if ((end = strrchr(host, '.')) != NULL && end > host && |
4030 | (!end[1] || end[1] == ':')) | |
4031 | { | |
4032 | /* | |
4033 | * "." on end, work back to second-to-last "."... | |
4034 | */ | |
4035 | for (end --; end > host && *end != '.'; end --); | |
4036 | } | |
4037 | ||
4038 | if (end && (!_cups_strcasecmp(end, ".local") || | |
4039 | !_cups_strncasecmp(end, ".local:", 7) || | |
4040 | !_cups_strcasecmp(end, ".local.") || | |
4041 | !_cups_strncasecmp(end, ".local.:", 8))) | |
e07d4801 | 4042 | return (1); |
37e7e6e0 | 4043 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
e07d4801 MS |
4044 | |
4045 | /* | |
4046 | * Check if the hostname is an IP address... | |
4047 | */ | |
4048 | ||
4049 | if (isdigit(*host & 255) || *host == '[') | |
4050 | { | |
4051 | /* | |
4052 | * Possible IPv4/IPv6 address... | |
4053 | */ | |
4054 | ||
4055 | char temp[1024], /* Temporary string */ | |
4056 | *ptr; /* Pointer into temporary string */ | |
4057 | http_addrlist_t *addrlist; /* List of addresses */ | |
4058 | ||
4059 | ||
4060 | strlcpy(temp, host, sizeof(temp)); | |
4061 | if ((ptr = strrchr(temp, ':')) != NULL && !strchr(ptr, ']')) | |
4062 | *ptr = '\0'; /* Strip :port from host value */ | |
4063 | ||
4064 | if ((addrlist = httpAddrGetList(temp, AF_UNSPEC, NULL)) != NULL) | |
4065 | { | |
4066 | /* | |
4067 | * Good IPv4/IPv6 address... | |
4068 | */ | |
4069 | ||
4070 | httpAddrFreeList(addrlist); | |
4071 | return (1); | |
4072 | } | |
4073 | } | |
4074 | ||
4075 | /* | |
4076 | * Check for (alias) name matches... | |
4077 | */ | |
4078 | ||
4079 | for (a = (cupsd_alias_t *)cupsArrayFirst(ServerAlias); | |
4080 | a; | |
4081 | a = (cupsd_alias_t *)cupsArrayNext(ServerAlias)) | |
4082 | { | |
4083 | /* | |
4084 | * "ServerAlias *" allows all host values through... | |
4085 | */ | |
4086 | ||
4087 | if (!strcmp(a->name, "*")) | |
4088 | return (1); | |
4089 | ||
88f9aafc | 4090 | if (!_cups_strncasecmp(host, a->name, a->namelen)) |
e07d4801 MS |
4091 | { |
4092 | /* | |
4093 | * Prefix matches; check the character at the end - it must be ":", ".", | |
4094 | * ".:", or nul... | |
4095 | */ | |
4096 | ||
4097 | end = host + a->namelen; | |
4098 | ||
4099 | if (!*end || *end == ':' || (*end == '.' && (!end[1] || end[1] == ':'))) | |
4100 | return (1); | |
4101 | } | |
4102 | } | |
4103 | ||
37e7e6e0 | 4104 | #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI) |
e07d4801 MS |
4105 | for (a = (cupsd_alias_t *)cupsArrayFirst(DNSSDAlias); |
4106 | a; | |
4107 | a = (cupsd_alias_t *)cupsArrayNext(DNSSDAlias)) | |
4108 | { | |
4109 | /* | |
4110 | * "ServerAlias *" allows all host values through... | |
4111 | */ | |
4112 | ||
4113 | if (!strcmp(a->name, "*")) | |
4114 | return (1); | |
4115 | ||
88f9aafc | 4116 | if (!_cups_strncasecmp(host, a->name, a->namelen)) |
e07d4801 MS |
4117 | { |
4118 | /* | |
4119 | * Prefix matches; check the character at the end - it must be ":", ".", | |
4120 | * ".:", or nul... | |
4121 | */ | |
4122 | ||
4123 | end = host + a->namelen; | |
4124 | ||
4125 | if (!*end || *end == ':' || (*end == '.' && (!end[1] || end[1] == ':'))) | |
4126 | return (1); | |
4127 | } | |
4128 | } | |
37e7e6e0 | 4129 | #endif /* HAVE_DNSSD || HAVE_AVAHI */ |
e07d4801 MS |
4130 | |
4131 | /* | |
4132 | * Check for interface hostname matches... | |
4133 | */ | |
4134 | ||
4135 | for (netif = (cupsd_netif_t *)cupsArrayFirst(NetIFList); | |
4136 | netif; | |
4137 | netif = (cupsd_netif_t *)cupsArrayNext(NetIFList)) | |
4138 | { | |
88f9aafc | 4139 | if (!_cups_strncasecmp(host, netif->hostname, netif->hostlen)) |
e07d4801 MS |
4140 | { |
4141 | /* | |
4142 | * Prefix matches; check the character at the end - it must be ":", ".", | |
4143 | * ".:", or nul... | |
4144 | */ | |
4145 | ||
4146 | end = host + netif->hostlen; | |
4147 | ||
4148 | if (!*end || *end == ':' || (*end == '.' && (!end[1] || end[1] == ':'))) | |
4149 | return (1); | |
4150 | } | |
4151 | } | |
4152 | ||
4153 | return (0); | |
4154 | } | |
4155 | ||
4156 | ||
ef416fc2 | 4157 | /* |
a74454a7 | 4158 | * 'write_file()' - Send a file via HTTP. |
e1d6a774 | 4159 | */ |
4160 | ||
4161 | static int /* O - 0 on failure, 1 on success */ | |
a74454a7 | 4162 | write_file(cupsd_client_t *con, /* I - Client connection */ |
4163 | http_status_t code, /* I - HTTP status */ | |
4164 | char *filename, /* I - Filename */ | |
4165 | char *type, /* I - File type */ | |
4166 | struct stat *filestats) /* O - File information */ | |
e1d6a774 | 4167 | { |
4168 | con->file = open(filename, O_RDONLY); | |
4169 | ||
b9faaae1 | 4170 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
85dda01c MS |
4171 | "[Client %d] write_file code=%d, filename=\"%s\" (%d), " |
4172 | "type=\"%s\", filestats=%p", con->http.fd, | |
b9faaae1 | 4173 | code, filename, con->file, type ? type : "(null)", filestats); |
e1d6a774 | 4174 | |
4175 | if (con->file < 0) | |
4176 | return (0); | |
4177 | ||
4178 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
4179 | ||
4180 | con->pipe_pid = 0; | |
4181 | ||
5bd77a73 | 4182 | if (!cupsdSendHeader(con, code, type, CUPSD_AUTH_NONE)) |
e1d6a774 | 4183 | return (0); |
4184 | ||
4185 | if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n", | |
4186 | httpGetDateString(filestats->st_mtime)) < 0) | |
4187 | return (0); | |
4188 | if (httpPrintf(HTTP(con), "Content-Length: " CUPS_LLFMT "\r\n", | |
4189 | CUPS_LLCAST filestats->st_size) < 0) | |
4190 | return (0); | |
4191 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
4192 | return (0); | |
4193 | ||
07725fee | 4194 | if (cupsdFlushHeader(con) < 0) |
4195 | return (0); | |
d09495fa | 4196 | |
e1d6a774 | 4197 | con->http.data_encoding = HTTP_ENCODE_LENGTH; |
4198 | con->http.data_remaining = filestats->st_size; | |
4199 | ||
4200 | if (con->http.data_remaining <= INT_MAX) | |
4201 | con->http._data_remaining = con->http.data_remaining; | |
4202 | else | |
4203 | con->http._data_remaining = INT_MAX; | |
4204 | ||
f7deaa1a | 4205 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, |
4206 | (cupsd_selfunc_t)cupsdWriteClient, con); | |
e1d6a774 | 4207 | |
4208 | return (1); | |
4209 | } | |
4210 | ||
4211 | ||
4212 | /* | |
f899b121 | 4213 | * 'write_pipe()' - Flag that data is available on the CGI pipe. |
4214 | */ | |
4215 | ||
4216 | static void | |
4217 | write_pipe(cupsd_client_t *con) /* I - Client connection */ | |
4218 | { | |
b9faaae1 | 4219 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
85dda01c MS |
4220 | "[Client %d] write_pipe CGI output on fd %d", |
4221 | con->http.fd, con->file); | |
f899b121 | 4222 | |
4223 | con->file_ready = 1; | |
4224 | ||
4225 | cupsdRemoveSelect(con->file); | |
4226 | cupsdAddSelect(con->http.fd, NULL, (cupsd_selfunc_t)cupsdWriteClient, con); | |
4227 | } | |
4228 | ||
4229 | ||
4230 | /* | |
b19ccc9e | 4231 | * End of "$Id: client.c 7950 2008-09-17 00:21:59Z mike $". |
ef416fc2 | 4232 | */ |