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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: client.c 7950 2008-09-17 00:21:59Z mike $" |
ef416fc2 | 3 | * |
4 | * Client routines for the Common UNIX Printing System (CUPS) scheduler. | |
5 | * | |
d1c13e16 | 6 | * Copyright 2007-2009 by Apple Inc. |
f7deaa1a | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
8 | * | |
9 | * This file contains Kerberos support code, copyright 2006 by | |
10 | * Jelmer Vernooij. | |
ef416fc2 | 11 | * |
12 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 13 | * property of Apple Inc. and are protected by Federal copyright |
14 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
15 | * which should have been included with this file. If this file is | |
16 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 17 | * |
18 | * Contents: | |
19 | * | |
20 | * cupsdAcceptClient() - Accept a new client. | |
21 | * cupsdCloseAllClients() - Close all remote clients immediately. | |
22 | * cupsdCloseClient() - Close a remote client. | |
d09495fa | 23 | * cupsdFlushHeader() - Flush the header fields to the client. |
ef416fc2 | 24 | * cupsdReadClient() - Read data from a client. |
25 | * cupsdSendCommand() - Send output from a command via HTTP. | |
26 | * cupsdSendError() - Send an error message via HTTP. | |
ef416fc2 | 27 | * cupsdSendHeader() - Send an HTTP request. |
28 | * cupsdUpdateCGI() - Read status messages from CGI scripts and programs. | |
29 | * cupsdWriteClient() - Write data to a client as needed. | |
30 | * check_if_modified() - Decode an "If-Modified-Since" line. | |
3dfe78b3 | 31 | * compare_clients() - Compare two client connections. |
ee571f26 | 32 | * data_ready() - Check whether data is available from a client. |
e1d6a774 | 33 | * encrypt_client() - Enable encryption for the client... |
b86bc4cf | 34 | * get_cdsa_certificate() - Convert a keychain name into the CFArrayRef |
ef416fc2 | 35 | * required by SSLSetCertificate. |
36 | * get_file() - Get a filename and state info. | |
37 | * install_conf_file() - Install a configuration file. | |
e1d6a774 | 38 | * is_cgi() - Is the resource a CGI script/program? |
ef416fc2 | 39 | * is_path_absolute() - Is a path absolute and free of relative elements. |
4744bd90 | 40 | * make_certificate() - Make a self-signed SSL/TLS certificate. |
ef416fc2 | 41 | * pipe_command() - Pipe the output of a command to the remote client. |
a74454a7 | 42 | * write_file() - Send a file via HTTP. |
f899b121 | 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 | ||
52 | #ifdef HAVE_CDSASSL | |
53 | # include <Security/Security.h> | |
b86bc4cf | 54 | # ifdef HAVE_SECIDENTITYSEARCHPRIV_H |
55 | # include <Security/SecIdentitySearchPriv.h> | |
56 | # else /* Declare prototype for function in that header... */ | |
57 | extern OSStatus SecIdentitySearchCreateWithPolicy(SecPolicyRef policy, | |
58 | CFStringRef idString, CSSM_KEYUSE keyUsage, | |
59 | CFTypeRef keychainOrArray, | |
60 | Boolean returnOnlyValidIdentities, | |
61 | SecIdentitySearchRef* searchRef); | |
62 | # endif /* HAVE_SECIDENTITYSEARCHPRIV_H */ | |
63 | # ifdef HAVE_SECPOLICYPRIV_H | |
64 | # include <Security/SecPolicyPriv.h> | |
65 | # else /* Declare prototype for function in that header... */ | |
66 | extern OSStatus SecPolicySetValue(SecPolicyRef policyRef, | |
67 | const CSSM_DATA *value); | |
68 | # endif /* HAVE_SECPOLICYPRIV_H */ | |
ed486911 | 69 | # ifdef HAVE_SECBASEPRIV_H |
70 | # include <Security/SecBasePriv.h> | |
b86bc4cf | 71 | # else /* Declare prototype for function in that header... */ |
72 | extern const char *cssmErrorString(int error); | |
ed486911 | 73 | # endif /* HAVE_SECBASEPRIV_H */ |
ef416fc2 | 74 | #endif /* HAVE_CDSASSL */ |
b86bc4cf | 75 | |
4744bd90 | 76 | #ifdef HAVE_GNUTLS |
77 | # include <gnutls/x509.h> | |
78 | #endif /* HAVE_GNUTLS */ | |
ef416fc2 | 79 | |
749b1e90 MS |
80 | #ifdef HAVE_TCPD_H |
81 | # include <tcpd.h> | |
82 | #endif /* HAVE_TCPD_H */ | |
83 | ||
ef416fc2 | 84 | |
85 | /* | |
86 | * Local functions... | |
87 | */ | |
88 | ||
89 | static int check_if_modified(cupsd_client_t *con, | |
90 | struct stat *filestats); | |
3dfe78b3 MS |
91 | static int compare_clients(cupsd_client_t *a, cupsd_client_t *b, |
92 | void *data); | |
ee571f26 | 93 | static int data_ready(cupsd_client_t *con); |
80ca4592 | 94 | #ifdef HAVE_SSL |
e1d6a774 | 95 | static int encrypt_client(cupsd_client_t *con); |
80ca4592 | 96 | #endif /* HAVE_SSL */ |
ef416fc2 | 97 | #ifdef HAVE_CDSASSL |
b86bc4cf | 98 | static CFArrayRef get_cdsa_certificate(cupsd_client_t *con); |
ef416fc2 | 99 | #endif /* HAVE_CDSASSL */ |
f7deaa1a | 100 | static char *get_file(cupsd_client_t *con, struct stat *filestats, |
ef416fc2 | 101 | char *filename, int len); |
102 | static http_status_t install_conf_file(cupsd_client_t *con); | |
e1d6a774 | 103 | static int is_cgi(cupsd_client_t *con, const char *filename, |
104 | struct stat *filestats, mime_type_t *type); | |
ef416fc2 | 105 | static int is_path_absolute(const char *path); |
8ca02f3c | 106 | #ifdef HAVE_SSL |
b86bc4cf | 107 | static int make_certificate(cupsd_client_t *con); |
8ca02f3c | 108 | #endif /* HAVE_SSL */ |
ef416fc2 | 109 | static int pipe_command(cupsd_client_t *con, int infile, int *outfile, |
110 | char *command, char *options, int root); | |
a74454a7 | 111 | static int write_file(cupsd_client_t *con, http_status_t code, |
112 | char *filename, char *type, | |
113 | struct stat *filestats); | |
f899b121 | 114 | static void write_pipe(cupsd_client_t *con); |
ef416fc2 | 115 | |
116 | ||
117 | /* | |
118 | * 'cupsdAcceptClient()' - Accept a new client. | |
119 | */ | |
120 | ||
121 | void | |
122 | cupsdAcceptClient(cupsd_listener_t *lis)/* I - Listener socket */ | |
123 | { | |
ef416fc2 | 124 | int count; /* Count of connections on a host */ |
125 | int val; /* Parameter value */ | |
bd7854cb | 126 | cupsd_client_t *con, /* New client pointer */ |
127 | *tempcon; /* Temporary client pointer */ | |
ef416fc2 | 128 | http_addrlist_t *addrlist, /* List of adddresses for host */ |
129 | *addr; /* Current address */ | |
130 | socklen_t addrlen; /* Length of address */ | |
131 | char *hostname; /* Hostname for address */ | |
132 | http_addr_t temp; /* Temporary address variable */ | |
133 | static time_t last_dos = 0; /* Time of last DoS attack */ | |
749b1e90 MS |
134 | #ifdef HAVE_TCPD_H |
135 | struct request_info wrap_req; /* TCP wrappers request information */ | |
136 | #endif /* HAVE_TCPD_H */ | |
ef416fc2 | 137 | |
138 | ||
139 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
bd7854cb | 140 | "cupsdAcceptClient(lis=%p) %d Clients = %d", |
141 | lis, lis->fd, cupsArrayCount(Clients)); | |
ef416fc2 | 142 | |
143 | /* | |
144 | * Make sure we don't have a full set of clients already... | |
145 | */ | |
146 | ||
bd7854cb | 147 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 148 | return; |
149 | ||
150 | /* | |
151 | * Get a pointer to the next available client... | |
152 | */ | |
153 | ||
bd7854cb | 154 | if (!Clients) |
155 | Clients = cupsArrayNew(NULL, NULL); | |
156 | ||
157 | if (!Clients) | |
91c84a35 MS |
158 | { |
159 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3dfe78b3 MS |
160 | "Unable to allocate memory for clients array!"); |
161 | cupsdPauseListening(); | |
162 | return; | |
163 | } | |
164 | ||
165 | if (!ActiveClients) | |
166 | ActiveClients = cupsArrayNew((cups_array_func_t)compare_clients, NULL); | |
167 | ||
168 | if (!ActiveClients) | |
169 | { | |
170 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
171 | "Unable to allocate memory for active clients array!"); | |
91c84a35 | 172 | cupsdPauseListening(); |
bd7854cb | 173 | return; |
91c84a35 | 174 | } |
bd7854cb | 175 | |
91c84a35 MS |
176 | if ((con = calloc(1, sizeof(cupsd_client_t))) == NULL) |
177 | { | |
178 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to allocate memory for client!"); | |
179 | cupsdPauseListening(); | |
180 | return; | |
181 | } | |
ef416fc2 | 182 | |
ef416fc2 | 183 | con->http.activity = time(NULL); |
184 | con->file = -1; | |
185 | con->http.hostaddr = &(con->clientaddr); | |
186 | ||
187 | /* | |
188 | * Accept the client and get the remote address... | |
189 | */ | |
190 | ||
191 | addrlen = sizeof(http_addr_t); | |
192 | ||
193 | if ((con->http.fd = accept(lis->fd, (struct sockaddr *)con->http.hostaddr, | |
194 | &addrlen)) < 0) | |
195 | { | |
76cd9e37 MS |
196 | if (errno == ENFILE || errno == EMFILE) |
197 | cupsdPauseListening(); | |
198 | ||
ef416fc2 | 199 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to accept client connection - %s.", |
200 | strerror(errno)); | |
bd7854cb | 201 | free(con); |
76cd9e37 | 202 | |
ef416fc2 | 203 | return; |
204 | } | |
205 | ||
206 | #ifdef AF_INET6 | |
207 | if (lis->address.addr.sa_family == AF_INET6) | |
208 | { | |
209 | /* | |
210 | * Save the connected port number... | |
211 | */ | |
212 | ||
213 | con->http.hostaddr->ipv6.sin6_port = lis->address.ipv6.sin6_port; | |
214 | ||
215 | /* | |
216 | * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we | |
217 | * can more easily use... | |
218 | */ | |
219 | ||
220 | if (con->http.hostaddr->ipv6.sin6_addr.s6_addr32[0] == 0 && | |
221 | con->http.hostaddr->ipv6.sin6_addr.s6_addr32[1] == 0 && | |
222 | ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2]) == 0xffff) | |
223 | con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2] = 0; | |
224 | } | |
225 | else | |
226 | #endif /* AF_INET6 */ | |
227 | if (lis->address.addr.sa_family == AF_INET) | |
228 | con->http.hostaddr->ipv4.sin_port = lis->address.ipv4.sin_port; | |
229 | ||
230 | /* | |
231 | * Check the number of clients on the same address... | |
232 | */ | |
233 | ||
bd7854cb | 234 | for (count = 0, tempcon = (cupsd_client_t *)cupsArrayFirst(Clients); |
235 | tempcon; | |
236 | tempcon = (cupsd_client_t *)cupsArrayNext(Clients)) | |
237 | if (httpAddrEqual(tempcon->http.hostaddr, con->http.hostaddr)) | |
ef416fc2 | 238 | { |
239 | count ++; | |
240 | if (count >= MaxClientsPerHost) | |
241 | break; | |
242 | } | |
243 | ||
244 | if (count >= MaxClientsPerHost) | |
245 | { | |
246 | if ((time(NULL) - last_dos) >= 60) | |
247 | { | |
248 | last_dos = time(NULL); | |
249 | cupsdLogMessage(CUPSD_LOG_WARN, | |
bd7854cb | 250 | "Possible DoS attack - more than %d clients connecting " |
251 | "from %s!", | |
749b1e90 MS |
252 | MaxClientsPerHost, |
253 | httpAddrString(con->http.hostaddr, con->http.hostname, | |
254 | sizeof(con->http.hostname))); | |
ef416fc2 | 255 | } |
256 | ||
257 | #ifdef WIN32 | |
258 | closesocket(con->http.fd); | |
259 | #else | |
260 | close(con->http.fd); | |
261 | #endif /* WIN32 */ | |
262 | ||
bd7854cb | 263 | free(con); |
ef416fc2 | 264 | return; |
265 | } | |
266 | ||
267 | /* | |
268 | * Get the hostname or format the IP address as needed... | |
269 | */ | |
270 | ||
271 | if (httpAddrLocalhost(con->http.hostaddr)) | |
272 | { | |
273 | /* | |
274 | * Map accesses from the loopback interface to "localhost"... | |
275 | */ | |
276 | ||
277 | strlcpy(con->http.hostname, "localhost", sizeof(con->http.hostname)); | |
278 | hostname = con->http.hostname; | |
279 | } | |
280 | else | |
281 | { | |
282 | /* | |
283 | * Map accesses from the same host to the server name. | |
284 | */ | |
285 | ||
d1c13e16 | 286 | if (HostNameLookups) |
ef416fc2 | 287 | hostname = httpAddrLookup(con->http.hostaddr, con->http.hostname, |
288 | sizeof(con->http.hostname)); | |
289 | else | |
290 | { | |
291 | hostname = NULL; | |
292 | httpAddrString(con->http.hostaddr, con->http.hostname, | |
293 | sizeof(con->http.hostname)); | |
294 | } | |
295 | } | |
296 | ||
297 | if (hostname == NULL && HostNameLookups == 2) | |
298 | { | |
299 | /* | |
300 | * Can't have an unresolved IP address with double-lookups enabled... | |
301 | */ | |
302 | ||
303 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
304 | "cupsdAcceptClient: Closing connection %d...", | |
305 | con->http.fd); | |
306 | ||
307 | #ifdef WIN32 | |
308 | closesocket(con->http.fd); | |
309 | #else | |
310 | close(con->http.fd); | |
311 | #endif /* WIN32 */ | |
312 | ||
313 | cupsdLogMessage(CUPSD_LOG_WARN, | |
314 | "Name lookup failed - connection from %s closed!", | |
315 | con->http.hostname); | |
bd7854cb | 316 | |
317 | free(con); | |
ef416fc2 | 318 | return; |
319 | } | |
320 | ||
321 | if (HostNameLookups == 2) | |
322 | { | |
323 | /* | |
324 | * Do double lookups as needed... | |
325 | */ | |
326 | ||
749b1e90 MS |
327 | if ((addrlist = httpAddrGetList(con->http.hostname, AF_UNSPEC, NULL)) |
328 | != NULL) | |
ef416fc2 | 329 | { |
330 | /* | |
331 | * See if the hostname maps to the same IP address... | |
332 | */ | |
333 | ||
334 | for (addr = addrlist; addr; addr = addr->next) | |
335 | if (httpAddrEqual(con->http.hostaddr, &(addr->addr))) | |
336 | break; | |
337 | } | |
338 | else | |
339 | addr = NULL; | |
340 | ||
341 | httpAddrFreeList(addrlist); | |
342 | ||
343 | if (!addr) | |
344 | { | |
345 | /* | |
346 | * Can't have a hostname that doesn't resolve to the same IP address | |
347 | * with double-lookups enabled... | |
348 | */ | |
349 | ||
350 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
351 | "cupsdAcceptClient: Closing connection %d...", | |
352 | con->http.fd); | |
353 | ||
354 | #ifdef WIN32 | |
355 | closesocket(con->http.fd); | |
356 | #else | |
357 | close(con->http.fd); | |
358 | #endif /* WIN32 */ | |
359 | ||
360 | cupsdLogMessage(CUPSD_LOG_WARN, | |
361 | "IP lookup failed - connection from %s closed!", | |
362 | con->http.hostname); | |
bd7854cb | 363 | free(con); |
ef416fc2 | 364 | return; |
365 | } | |
366 | } | |
367 | ||
749b1e90 MS |
368 | #ifdef HAVE_TCPD_H |
369 | /* | |
370 | * See if the connection is denied by TCP wrappers... | |
371 | */ | |
372 | ||
373 | request_init(&wrap_req, RQ_DAEMON, "cupsd", RQ_FILE, con->http.fd, NULL); | |
374 | fromhost(&wrap_req); | |
375 | ||
376 | if (!hosts_access(&wrap_req)) | |
377 | { | |
378 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
379 | "cupsdAcceptClient: Closing connection %d...", | |
380 | con->http.fd); | |
381 | ||
382 | #ifdef WIN32 | |
383 | closesocket(con->http.fd); | |
384 | #else | |
385 | close(con->http.fd); | |
386 | #endif /* WIN32 */ | |
387 | ||
388 | cupsdLogMessage(CUPSD_LOG_WARN, | |
389 | "Connection from %s refused by /etc/hosts.allow and " | |
390 | "/etc/hosts.deny rules.", con->http.hostname); | |
391 | free(con); | |
392 | return; | |
393 | } | |
394 | #endif /* HAVE_TCPD_H */ | |
395 | ||
ef416fc2 | 396 | #ifdef AF_INET6 |
397 | if (con->http.hostaddr->addr.sa_family == AF_INET6) | |
398 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv6)", | |
399 | con->http.fd, con->http.hostname, | |
400 | ntohs(con->http.hostaddr->ipv6.sin6_port)); | |
401 | else | |
402 | #endif /* AF_INET6 */ | |
403 | #ifdef AF_LOCAL | |
404 | if (con->http.hostaddr->addr.sa_family == AF_LOCAL) | |
405 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s (Domain)", | |
406 | con->http.fd, con->http.hostname); | |
407 | else | |
408 | #endif /* AF_LOCAL */ | |
409 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv4)", | |
410 | con->http.fd, con->http.hostname, | |
411 | ntohs(con->http.hostaddr->ipv4.sin_port)); | |
412 | ||
413 | /* | |
414 | * Get the local address the client connected to... | |
415 | */ | |
416 | ||
417 | addrlen = sizeof(temp); | |
418 | if (getsockname(con->http.fd, (struct sockaddr *)&temp, &addrlen)) | |
419 | { | |
420 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get local address - %s", | |
421 | strerror(errno)); | |
422 | ||
423 | strcpy(con->servername, "localhost"); | |
424 | con->serverport = LocalPort; | |
425 | } | |
426 | else | |
427 | { | |
428 | #ifdef AF_INET6 | |
429 | if (temp.addr.sa_family == AF_INET6) | |
430 | { | |
b19ccc9e MS |
431 | if (HostNameLookups) |
432 | httpAddrLookup(&temp, con->servername, sizeof(con->servername)); | |
0af14961 MS |
433 | else if (httpAddrLocalhost(&temp)) |
434 | strlcpy(con->servername, "localhost", sizeof(con->servername)); | |
b19ccc9e MS |
435 | else |
436 | httpAddrString(&temp, con->servername, sizeof(con->servername)); | |
437 | ||
ef416fc2 | 438 | con->serverport = ntohs(lis->address.ipv6.sin6_port); |
439 | } | |
440 | else | |
441 | #endif /* AF_INET6 */ | |
442 | if (temp.addr.sa_family == AF_INET) | |
443 | { | |
b19ccc9e MS |
444 | if (HostNameLookups) |
445 | httpAddrLookup(&temp, con->servername, sizeof(con->servername)); | |
0af14961 MS |
446 | else if (httpAddrLocalhost(&temp)) |
447 | strlcpy(con->servername, "localhost", sizeof(con->servername)); | |
b19ccc9e MS |
448 | else |
449 | httpAddrString(&temp, con->servername, sizeof(con->servername)); | |
450 | ||
ef416fc2 | 451 | con->serverport = ntohs(lis->address.ipv4.sin_port); |
452 | } | |
453 | else | |
454 | { | |
455 | strcpy(con->servername, "localhost"); | |
456 | con->serverport = LocalPort; | |
457 | } | |
458 | } | |
459 | ||
bd7854cb | 460 | cupsArrayAdd(Clients, con); |
461 | ||
ef416fc2 | 462 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
463 | "cupsdAcceptClient: %d connected to server on %s:%d", | |
464 | con->http.fd, con->servername, con->serverport); | |
465 | ||
466 | /* | |
467 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
468 | * with a slow loopback interface... Since we write large buffers | |
469 | * when sending print files and requests, there shouldn't be any | |
470 | * performance penalty for this... | |
471 | */ | |
472 | ||
473 | val = 1; | |
f7deaa1a | 474 | setsockopt(con->http.fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val)); |
ef416fc2 | 475 | |
476 | /* | |
477 | * Close this file on all execs... | |
478 | */ | |
479 | ||
480 | fcntl(con->http.fd, F_SETFD, fcntl(con->http.fd, F_GETFD) | FD_CLOEXEC); | |
481 | ||
482 | /* | |
483 | * Add the socket to the select() input mask. | |
484 | */ | |
485 | ||
f7deaa1a | 486 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 487 | |
ef416fc2 | 488 | /* |
489 | * Temporarily suspend accept()'s until we lose a client... | |
490 | */ | |
491 | ||
bd7854cb | 492 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 493 | cupsdPauseListening(); |
494 | ||
495 | #ifdef HAVE_SSL | |
496 | /* | |
497 | * See if we are connecting on a secure port... | |
498 | */ | |
499 | ||
500 | if (lis->encryption == HTTP_ENCRYPT_ALWAYS) | |
501 | { | |
502 | /* | |
503 | * https connection; go secure... | |
504 | */ | |
505 | ||
506 | con->http.encryption = HTTP_ENCRYPT_ALWAYS; | |
507 | ||
411affcf | 508 | if (!encrypt_client(con)) |
509 | cupsdCloseClient(con); | |
ef416fc2 | 510 | } |
511 | else | |
512 | con->auto_ssl = 1; | |
513 | #endif /* HAVE_SSL */ | |
514 | } | |
515 | ||
516 | ||
517 | /* | |
518 | * 'cupsdCloseAllClients()' - Close all remote clients immediately. | |
519 | */ | |
520 | ||
521 | void | |
522 | cupsdCloseAllClients(void) | |
523 | { | |
bd7854cb | 524 | cupsd_client_t *con; /* Current client */ |
525 | ||
526 | ||
527 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); | |
528 | con; | |
529 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
49d87452 MS |
530 | if (cupsdCloseClient(con)) |
531 | cupsdCloseClient(con); | |
ef416fc2 | 532 | } |
533 | ||
534 | ||
535 | /* | |
536 | * 'cupsdCloseClient()' - Close a remote client. | |
537 | */ | |
538 | ||
539 | int /* O - 1 if partial close, 0 if fully closed */ | |
540 | cupsdCloseClient(cupsd_client_t *con) /* I - Client to close */ | |
541 | { | |
542 | int partial; /* Do partial close for SSL? */ | |
543 | #ifdef HAVE_LIBSSL | |
544 | SSL_CTX *context; /* Context for encryption */ | |
545 | SSL *conn; /* Connection for encryption */ | |
546 | unsigned long error; /* Error code */ | |
547 | #elif defined(HAVE_GNUTLS) | |
89d46774 | 548 | http_tls_t *conn; /* TLS connection information */ |
549 | int error; /* Error code */ | |
ef416fc2 | 550 | gnutls_certificate_server_credentials *credentials; |
551 | /* TLS credentials */ | |
89d46774 | 552 | # elif defined(HAVE_CDSASSL) |
553 | http_tls_t *conn; /* CDSA connection information */ | |
ef416fc2 | 554 | #endif /* HAVE_LIBSSL */ |
555 | ||
556 | ||
557 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdCloseClient: %d", con->http.fd); | |
558 | ||
559 | /* | |
560 | * Flush pending writes before closing... | |
561 | */ | |
562 | ||
563 | httpFlushWrite(HTTP(con)); | |
564 | ||
565 | partial = 0; | |
566 | ||
567 | #ifdef HAVE_SSL | |
568 | /* | |
569 | * Shutdown encryption as needed... | |
570 | */ | |
571 | ||
572 | if (con->http.tls) | |
573 | { | |
574 | partial = 1; | |
575 | ||
576 | # ifdef HAVE_LIBSSL | |
577 | conn = (SSL *)(con->http.tls); | |
578 | context = SSL_get_SSL_CTX(conn); | |
579 | ||
580 | switch (SSL_shutdown(conn)) | |
581 | { | |
582 | case 1 : | |
c934a06c MS |
583 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
584 | "SSL shutdown successful!"); | |
ef416fc2 | 585 | break; |
586 | case -1 : | |
587 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
c934a06c | 588 | "Fatal error during SSL shutdown!"); |
ef416fc2 | 589 | default : |
590 | while ((error = ERR_get_error()) != 0) | |
c934a06c | 591 | cupsdLogMessage(CUPSD_LOG_ERROR, "SSL shutdown failed: %s", |
ef416fc2 | 592 | ERR_error_string(error, NULL)); |
593 | break; | |
594 | } | |
595 | ||
596 | SSL_CTX_free(context); | |
597 | SSL_free(conn); | |
598 | ||
599 | # elif defined(HAVE_GNUTLS) | |
600 | conn = (http_tls_t *)(con->http.tls); | |
601 | credentials = (gnutls_certificate_server_credentials *)(conn->credentials); | |
602 | ||
603 | error = gnutls_bye(conn->session, GNUTLS_SHUT_WR); | |
604 | switch (error) | |
605 | { | |
606 | case GNUTLS_E_SUCCESS: | |
c934a06c MS |
607 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
608 | "SSL shutdown successful!"); | |
ef416fc2 | 609 | break; |
610 | default: | |
611 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
c934a06c | 612 | "SSL shutdown failed: %s", gnutls_strerror(error)); |
ef416fc2 | 613 | break; |
614 | } | |
615 | ||
616 | gnutls_deinit(conn->session); | |
617 | gnutls_certificate_free_credentials(*credentials); | |
618 | free(credentials); | |
619 | free(conn); | |
620 | ||
621 | # elif defined(HAVE_CDSASSL) | |
89d46774 | 622 | conn = (http_tls_t *)(con->http.tls); |
623 | ||
624 | while (SSLClose(conn->session) == errSSLWouldBlock) | |
b423cd4c | 625 | usleep(1000); |
626 | ||
89d46774 | 627 | SSLDisposeContext(conn->session); |
628 | ||
629 | if (conn->certsArray) | |
630 | CFRelease(conn->certsArray); | |
631 | ||
632 | free(conn); | |
ef416fc2 | 633 | # endif /* HAVE_LIBSSL */ |
634 | ||
635 | con->http.tls = NULL; | |
636 | } | |
637 | #endif /* HAVE_SSL */ | |
638 | ||
639 | if (con->pipe_pid != 0) | |
640 | { | |
641 | /* | |
642 | * Stop any CGI process... | |
643 | */ | |
644 | ||
645 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
646 | "cupsdCloseClient: %d Killing process ID %d...", | |
647 | con->http.fd, con->pipe_pid); | |
648 | cupsdEndProcess(con->pipe_pid, 1); | |
649 | con->pipe_pid = 0; | |
650 | } | |
651 | ||
652 | if (con->file >= 0) | |
653 | { | |
f7deaa1a | 654 | cupsdRemoveSelect(con->file); |
ef416fc2 | 655 | |
656 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
657 | "cupsdCloseClient: %d Closing data file %d.", | |
658 | con->http.fd, con->file); | |
659 | ||
660 | close(con->file); | |
661 | con->file = -1; | |
662 | } | |
663 | ||
664 | /* | |
665 | * Close the socket and clear the file from the input set for select()... | |
666 | */ | |
667 | ||
3dfe78b3 | 668 | if (con->http.fd >= 0) |
ef416fc2 | 669 | { |
3dfe78b3 MS |
670 | cupsArrayRemove(ActiveClients, con); |
671 | cupsdSetBusyState(); | |
672 | ||
ef416fc2 | 673 | if (partial) |
674 | { | |
675 | /* | |
676 | * Only do a partial close so that the encrypted client gets everything. | |
677 | */ | |
678 | ||
ef416fc2 | 679 | shutdown(con->http.fd, 0); |
f7deaa1a | 680 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 681 | } |
682 | else | |
683 | { | |
684 | /* | |
685 | * Shut the socket down fully... | |
686 | */ | |
687 | ||
f7deaa1a | 688 | cupsdRemoveSelect(con->http.fd); |
ef416fc2 | 689 | close(con->http.fd); |
ef416fc2 | 690 | con->http.fd = -1; |
691 | } | |
692 | } | |
693 | ||
694 | if (!partial) | |
695 | { | |
696 | /* | |
697 | * Free memory... | |
698 | */ | |
699 | ||
700 | if (con->http.input_set) | |
701 | free(con->http.input_set); | |
702 | ||
703 | httpClearCookie(HTTP(con)); | |
9f5eb9be | 704 | httpClearFields(HTTP(con)); |
ef416fc2 | 705 | |
706 | cupsdClearString(&con->filename); | |
707 | cupsdClearString(&con->command); | |
708 | cupsdClearString(&con->options); | |
b86bc4cf | 709 | cupsdClearString(&con->query_string); |
ef416fc2 | 710 | |
711 | if (con->request) | |
712 | { | |
713 | ippDelete(con->request); | |
714 | con->request = NULL; | |
715 | } | |
716 | ||
717 | if (con->response) | |
718 | { | |
719 | ippDelete(con->response); | |
720 | con->response = NULL; | |
721 | } | |
722 | ||
723 | if (con->language) | |
724 | { | |
725 | cupsLangFree(con->language); | |
726 | con->language = NULL; | |
727 | } | |
728 | ||
f7deaa1a | 729 | #ifdef HAVE_AUTHORIZATION_H |
730 | if (con->authref) | |
731 | { | |
732 | AuthorizationFree(con->authref, kAuthorizationFlagDefaults); | |
733 | con->authref = NULL; | |
734 | } | |
735 | #endif /* HAVE_AUTHORIZATION_H */ | |
736 | ||
ef416fc2 | 737 | /* |
738 | * Re-enable new client connections if we are going back under the | |
739 | * limit... | |
740 | */ | |
741 | ||
bd7854cb | 742 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 743 | cupsdResumeListening(); |
744 | ||
745 | /* | |
746 | * Compact the list of clients as necessary... | |
747 | */ | |
748 | ||
bd7854cb | 749 | cupsArrayRemove(Clients, con); |
ef416fc2 | 750 | |
bd7854cb | 751 | free(con); |
ef416fc2 | 752 | } |
753 | ||
754 | return (partial); | |
755 | } | |
756 | ||
757 | ||
d09495fa | 758 | /* |
759 | * 'cupsdFlushHeader()' - Flush the header fields to the client. | |
760 | */ | |
761 | ||
07725fee | 762 | int /* I - Bytes written or -1 on error */ |
d09495fa | 763 | cupsdFlushHeader(cupsd_client_t *con) /* I - Client to flush to */ |
764 | { | |
07725fee | 765 | int bytes = httpFlushWrite(HTTP(con)); |
d09495fa | 766 | |
767 | con->http.data_encoding = HTTP_ENCODE_LENGTH; | |
07725fee | 768 | |
769 | return (bytes); | |
d09495fa | 770 | } |
771 | ||
772 | ||
ef416fc2 | 773 | /* |
774 | * 'cupsdReadClient()' - Read data from a client. | |
775 | */ | |
776 | ||
f7deaa1a | 777 | void |
ef416fc2 | 778 | cupsdReadClient(cupsd_client_t *con) /* I - Client to read from */ |
779 | { | |
780 | char line[32768], /* Line from client... */ | |
781 | operation[64], /* Operation code from socket */ | |
782 | version[64], /* HTTP version number string */ | |
783 | locale[64], /* Locale */ | |
784 | *ptr; /* Pointer into strings */ | |
785 | int major, minor; /* HTTP version numbers */ | |
786 | http_status_t status; /* Transfer status */ | |
787 | ipp_state_t ipp_state; /* State of IPP transfer */ | |
788 | int bytes; /* Number of bytes to POST */ | |
789 | char *filename; /* Name of file for GET/HEAD */ | |
790 | char buf[1024]; /* Buffer for real filename */ | |
791 | struct stat filestats; /* File information */ | |
792 | mime_type_t *type; /* MIME type of file */ | |
793 | cupsd_printer_t *p; /* Printer */ | |
794 | static unsigned request_id = 0; /* Request ID for temp files */ | |
795 | ||
796 | ||
797 | status = HTTP_CONTINUE; | |
798 | ||
799 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
800 | "cupsdReadClient: %d, used=%d, file=%d state=%d", | |
801 | con->http.fd, con->http.used, con->file, con->http.state); | |
802 | ||
803 | if (con->http.error) | |
804 | { | |
805 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: http error seen..."); | |
f7deaa1a | 806 | cupsdCloseClient(con); |
807 | return; | |
ef416fc2 | 808 | } |
809 | ||
810 | #ifdef HAVE_SSL | |
811 | if (con->auto_ssl) | |
812 | { | |
813 | /* | |
814 | * Automatically check for a SSL/TLS handshake... | |
815 | */ | |
816 | ||
817 | con->auto_ssl = 0; | |
818 | ||
819 | if (recv(con->http.fd, buf, 1, MSG_PEEK) == 1 && | |
820 | (!buf[0] || !strchr("DGHOPT", buf[0]))) | |
821 | { | |
822 | /* | |
823 | * Encrypt this connection... | |
824 | */ | |
825 | ||
826 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
827 | "cupsdReadClient: Saw first byte %02X, auto-negotiating SSL/TLS session...", | |
828 | buf[0] & 255); | |
829 | ||
411affcf | 830 | if (!encrypt_client(con)) |
f7deaa1a | 831 | cupsdCloseClient(con); |
411affcf | 832 | |
f7deaa1a | 833 | return; |
ef416fc2 | 834 | } |
835 | } | |
836 | #endif /* HAVE_SSL */ | |
837 | ||
838 | switch (con->http.state) | |
839 | { | |
840 | case HTTP_WAITING : | |
841 | /* | |
842 | * See if we've received a request line... | |
843 | */ | |
844 | ||
845 | if (httpGets(line, sizeof(line) - 1, HTTP(con)) == NULL) | |
846 | { | |
847 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
848 | "cupsdReadClient: httpGets returned EOF..."); | |
f7deaa1a | 849 | cupsdCloseClient(con); |
850 | return; | |
ef416fc2 | 851 | } |
852 | ||
853 | /* | |
854 | * Ignore blank request lines... | |
855 | */ | |
856 | ||
857 | if (line[0] == '\0') | |
858 | break; | |
859 | ||
860 | /* | |
861 | * Clear other state variables... | |
862 | */ | |
863 | ||
864 | httpClearFields(HTTP(con)); | |
865 | ||
866 | con->http.activity = time(NULL); | |
867 | con->http.version = HTTP_1_0; | |
868 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
869 | con->http.data_encoding = HTTP_ENCODE_LENGTH; | |
870 | con->http.data_remaining = 0; | |
871 | con->http._data_remaining = 0; | |
872 | con->operation = HTTP_WAITING; | |
873 | con->bytes = 0; | |
874 | con->file = -1; | |
875 | con->file_ready = 0; | |
876 | con->pipe_pid = 0; | |
877 | con->username[0] = '\0'; | |
878 | con->password[0] = '\0'; | |
879 | con->uri[0] = '\0'; | |
880 | ||
881 | cupsdClearString(&con->command); | |
882 | cupsdClearString(&con->options); | |
b86bc4cf | 883 | cupsdClearString(&con->query_string); |
ef416fc2 | 884 | |
2abf387c | 885 | if (con->request) |
886 | { | |
887 | ippDelete(con->request); | |
888 | con->request = NULL; | |
889 | } | |
890 | ||
891 | if (con->response) | |
892 | { | |
893 | ippDelete(con->response); | |
894 | con->response = NULL; | |
895 | } | |
896 | ||
897 | if (con->language) | |
ef416fc2 | 898 | { |
899 | cupsLangFree(con->language); | |
900 | con->language = NULL; | |
901 | } | |
902 | ||
09a101d6 | 903 | #ifdef HAVE_GSSAPI |
904 | con->gss_have_creds = 0; | |
905 | #endif /* HAVE_GSSAPI */ | |
906 | ||
ef416fc2 | 907 | /* |
908 | * Grab the request line... | |
909 | */ | |
910 | ||
911 | switch (sscanf(line, "%63s%1023s%63s", operation, con->uri, version)) | |
912 | { | |
913 | case 1 : | |
c934a06c MS |
914 | if (line[0]) |
915 | { | |
916 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
917 | "Bad request line \"%s\" from %s!", line, | |
918 | con->http.hostname); | |
919 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); | |
920 | cupsdCloseClient(con); | |
921 | } | |
f7deaa1a | 922 | return; |
ef416fc2 | 923 | case 2 : |
924 | con->http.version = HTTP_0_9; | |
925 | break; | |
926 | case 3 : | |
927 | if (sscanf(version, "HTTP/%d.%d", &major, &minor) != 2) | |
928 | { | |
929 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
930 | "Bad request line \"%s\" from %s!", line, | |
931 | con->http.hostname); | |
5bd77a73 | 932 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 933 | cupsdCloseClient(con); |
934 | return; | |
ef416fc2 | 935 | } |
936 | ||
937 | if (major < 2) | |
938 | { | |
939 | con->http.version = (http_version_t)(major * 100 + minor); | |
940 | if (con->http.version == HTTP_1_1 && KeepAlive) | |
941 | con->http.keep_alive = HTTP_KEEPALIVE_ON; | |
942 | else | |
943 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
944 | } | |
945 | else | |
946 | { | |
5bd77a73 | 947 | cupsdSendError(con, HTTP_NOT_SUPPORTED, CUPSD_AUTH_NONE); |
f7deaa1a | 948 | cupsdCloseClient(con); |
949 | return; | |
ef416fc2 | 950 | } |
951 | break; | |
952 | } | |
953 | ||
954 | /* | |
955 | * Handle full URLs in the request line... | |
956 | */ | |
957 | ||
958 | if (strcmp(con->uri, "*")) | |
959 | { | |
e6013cfa | 960 | char scheme[HTTP_MAX_URI], /* Method/scheme */ |
ef416fc2 | 961 | userpass[HTTP_MAX_URI], /* Username:password */ |
962 | hostname[HTTP_MAX_URI], /* Hostname */ | |
963 | resource[HTTP_MAX_URI]; /* Resource path */ | |
964 | int port; /* Port number */ | |
965 | ||
966 | ||
967 | /* | |
968 | * Separate the URI into its components... | |
969 | */ | |
970 | ||
a4d04587 | 971 | httpSeparateURI(HTTP_URI_CODING_MOST, con->uri, |
e6013cfa | 972 | scheme, sizeof(scheme), |
ef416fc2 | 973 | userpass, sizeof(userpass), |
974 | hostname, sizeof(hostname), &port, | |
975 | resource, sizeof(resource)); | |
976 | ||
977 | /* | |
978 | * Only allow URIs with the servername, localhost, or an IP | |
979 | * address... | |
980 | */ | |
981 | ||
e6013cfa | 982 | if (strcmp(scheme, "file") && |
ef416fc2 | 983 | strcasecmp(hostname, ServerName) && |
984 | strcasecmp(hostname, "localhost") && | |
e6013cfa | 985 | !isdigit(hostname[0]) && hostname[0] != '[') |
ef416fc2 | 986 | { |
987 | /* | |
988 | * Nope, we don't do proxies... | |
989 | */ | |
990 | ||
991 | cupsdLogMessage(CUPSD_LOG_ERROR, "Bad URI \"%s\" in request!", | |
992 | con->uri); | |
5bd77a73 | 993 | cupsdSendError(con, HTTP_METHOD_NOT_ALLOWED, CUPSD_AUTH_NONE); |
f7deaa1a | 994 | cupsdCloseClient(con); |
995 | return; | |
ef416fc2 | 996 | } |
997 | ||
998 | /* | |
999 | * Copy the resource portion back into the URI; both resource and | |
1000 | * con->uri are HTTP_MAX_URI bytes in size... | |
1001 | */ | |
1002 | ||
1003 | strcpy(con->uri, resource); | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * Process the request... | |
1008 | */ | |
1009 | ||
1010 | if (!strcmp(operation, "GET")) | |
1011 | con->http.state = HTTP_GET; | |
1012 | else if (!strcmp(operation, "PUT")) | |
1013 | con->http.state = HTTP_PUT; | |
1014 | else if (!strcmp(operation, "POST")) | |
1015 | con->http.state = HTTP_POST; | |
1016 | else if (!strcmp(operation, "DELETE")) | |
1017 | con->http.state = HTTP_DELETE; | |
1018 | else if (!strcmp(operation, "TRACE")) | |
1019 | con->http.state = HTTP_TRACE; | |
1020 | else if (!strcmp(operation, "OPTIONS")) | |
1021 | con->http.state = HTTP_OPTIONS; | |
1022 | else if (!strcmp(operation, "HEAD")) | |
1023 | con->http.state = HTTP_HEAD; | |
1024 | else | |
1025 | { | |
1026 | cupsdLogMessage(CUPSD_LOG_ERROR, "Bad operation \"%s\"!", operation); | |
5bd77a73 | 1027 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 1028 | cupsdCloseClient(con); |
1029 | return; | |
ef416fc2 | 1030 | } |
1031 | ||
dfd5680b | 1032 | gettimeofday(&(con->start), NULL); |
ef416fc2 | 1033 | con->operation = con->http.state; |
1034 | ||
89d46774 | 1035 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdReadClient: %d %s %s HTTP/%d.%d", |
1036 | con->http.fd, operation, con->uri, | |
ef416fc2 | 1037 | con->http.version / 100, con->http.version % 100); |
1038 | ||
1039 | con->http.status = HTTP_OK; | |
1040 | ||
49d87452 MS |
1041 | if (!cupsArrayFind(ActiveClients, con)) |
1042 | { | |
1043 | cupsArrayAdd(ActiveClients, con); | |
1044 | cupsdSetBusyState(); | |
1045 | } | |
3dfe78b3 | 1046 | |
ef416fc2 | 1047 | case HTTP_OPTIONS : |
1048 | case HTTP_DELETE : | |
1049 | case HTTP_GET : | |
1050 | case HTTP_HEAD : | |
1051 | case HTTP_POST : | |
1052 | case HTTP_PUT : | |
1053 | case HTTP_TRACE : | |
1054 | /* | |
1055 | * Parse incoming parameters until the status changes... | |
1056 | */ | |
1057 | ||
f7deaa1a | 1058 | while ((status = httpUpdate(HTTP(con))) == HTTP_CONTINUE) |
ee571f26 | 1059 | if (!data_ready(con)) |
f7deaa1a | 1060 | break; |
ef416fc2 | 1061 | |
1062 | if (status != HTTP_OK && status != HTTP_CONTINUE) | |
1063 | { | |
5bd77a73 | 1064 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 1065 | cupsdCloseClient(con); |
1066 | return; | |
ef416fc2 | 1067 | } |
1068 | break; | |
1069 | ||
1070 | default : | |
e6013cfa MS |
1071 | if (!data_ready(con) && recv(con->http.fd, buf, 1, MSG_PEEK) < 1) |
1072 | { | |
1073 | /* | |
1074 | * Connection closed... | |
1075 | */ | |
1076 | ||
1077 | cupsdCloseClient(con); | |
1078 | return; | |
1079 | } | |
ef416fc2 | 1080 | break; /* Anti-compiler-warning-code */ |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | * Handle new transfers... | |
1085 | */ | |
1086 | ||
1087 | if (status == HTTP_OK) | |
1088 | { | |
1089 | if (con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE][0]) | |
1090 | { | |
1091 | /* | |
1092 | * Figure out the locale from the Accept-Language and Content-Type | |
1093 | * fields... | |
1094 | */ | |
1095 | ||
1096 | if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ',')) != NULL) | |
1097 | *ptr = '\0'; | |
1098 | ||
1099 | if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ';')) != NULL) | |
1100 | *ptr = '\0'; | |
1101 | ||
1102 | if ((ptr = strstr(con->http.fields[HTTP_FIELD_CONTENT_TYPE], "charset=")) != NULL) | |
1103 | { | |
1104 | /* | |
1105 | * Combine language and charset, and trim any extra params in the | |
1106 | * content-type. | |
1107 | */ | |
1108 | ||
1109 | snprintf(locale, sizeof(locale), "%s.%s", | |
1110 | con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ptr + 8); | |
1111 | ||
1112 | if ((ptr = strchr(locale, ',')) != NULL) | |
1113 | *ptr = '\0'; | |
1114 | } | |
1115 | else | |
1116 | snprintf(locale, sizeof(locale), "%s.%s", | |
1117 | con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], DefaultCharset); | |
d6ae789d | 1118 | |
355e94dc | 1119 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
89d46774 | 1120 | "cupsdReadClient: %d Browser asked for language \"%s\"...", |
1121 | con->http.fd, locale); | |
1122 | ||
ef416fc2 | 1123 | con->language = cupsLangGet(locale); |
1124 | } | |
1125 | else | |
1126 | con->language = cupsLangGet(DefaultLocale); | |
1127 | ||
1128 | cupsdAuthorize(con); | |
1129 | ||
52f6f666 | 1130 | if (!strncasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Keep-Alive", 10) && |
ef416fc2 | 1131 | KeepAlive) |
1132 | con->http.keep_alive = HTTP_KEEPALIVE_ON; | |
52f6f666 MS |
1133 | else if (!strncasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "close", 5)) |
1134 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
ef416fc2 | 1135 | |
1136 | if (!con->http.fields[HTTP_FIELD_HOST][0] && | |
1137 | con->http.version >= HTTP_1_1) | |
1138 | { | |
1139 | /* | |
1140 | * HTTP/1.1 and higher require the "Host:" field... | |
1141 | */ | |
1142 | ||
5bd77a73 | 1143 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1144 | { |
1145 | cupsdCloseClient(con); | |
1146 | return; | |
1147 | } | |
ef416fc2 | 1148 | } |
e6013cfa MS |
1149 | else if (httpAddrLocalhost(con->http.hostaddr) && |
1150 | strcasecmp(con->http.fields[HTTP_FIELD_HOST], "localhost") && | |
1151 | strncasecmp(con->http.fields[HTTP_FIELD_HOST], "localhost:", 10) && | |
1152 | strcmp(con->http.fields[HTTP_FIELD_HOST], "127.0.0.1") && | |
1153 | strncmp(con->http.fields[HTTP_FIELD_HOST], "127.0.0.1:", 10) && | |
1154 | strcmp(con->http.fields[HTTP_FIELD_HOST], "[::1]") && | |
1155 | strncmp(con->http.fields[HTTP_FIELD_HOST], "[::1]:", 6)) | |
1156 | { | |
1157 | /* | |
1158 | * Access to localhost must use "localhost" or the corresponding IPv4 | |
1159 | * or IPv6 values in the Host: field. | |
1160 | */ | |
1161 | ||
1162 | cupsdLogMessage(CUPSD_LOG_WARN, | |
1163 | "Request from \"%s\" using invalid Host: field \"%s\"", | |
1164 | con->http.hostname, con->http.fields[HTTP_FIELD_HOST]); | |
1165 | ||
1166 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) | |
1167 | { | |
1168 | cupsdCloseClient(con); | |
1169 | return; | |
1170 | } | |
1171 | } | |
ef416fc2 | 1172 | else if (con->operation == HTTP_OPTIONS) |
1173 | { | |
1174 | /* | |
1175 | * Do OPTIONS command... | |
1176 | */ | |
1177 | ||
5bd77a73 | 1178 | if (con->best && con->best->type != CUPSD_AUTH_NONE) |
ef416fc2 | 1179 | { |
5bd77a73 | 1180 | if (!cupsdSendHeader(con, HTTP_UNAUTHORIZED, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1181 | { |
1182 | cupsdCloseClient(con); | |
1183 | return; | |
1184 | } | |
ef416fc2 | 1185 | } |
1186 | ||
1187 | if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") && | |
1188 | con->http.tls == NULL) | |
1189 | { | |
1190 | #ifdef HAVE_SSL | |
1191 | /* | |
1192 | * Do encryption stuff... | |
1193 | */ | |
1194 | ||
5bd77a73 | 1195 | if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1196 | { |
1197 | cupsdCloseClient(con); | |
1198 | return; | |
1199 | } | |
ef416fc2 | 1200 | |
1201 | httpPrintf(HTTP(con), "Connection: Upgrade\r\n"); | |
1202 | httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n"); | |
1203 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1204 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1205 | |
1206 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1207 | { |
1208 | cupsdCloseClient(con); | |
1209 | return; | |
1210 | } | |
ef416fc2 | 1211 | |
411affcf | 1212 | if (!encrypt_client(con)) |
f7deaa1a | 1213 | { |
1214 | cupsdCloseClient(con); | |
1215 | return; | |
1216 | } | |
ef416fc2 | 1217 | #else |
5bd77a73 | 1218 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1219 | { |
1220 | cupsdCloseClient(con); | |
1221 | return; | |
1222 | } | |
ef416fc2 | 1223 | #endif /* HAVE_SSL */ |
1224 | } | |
1225 | ||
5bd77a73 | 1226 | if (!cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1227 | { |
1228 | cupsdCloseClient(con); | |
1229 | return; | |
1230 | } | |
ef416fc2 | 1231 | |
1232 | httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n"); | |
1233 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1234 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1235 | |
1236 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1237 | { |
1238 | cupsdCloseClient(con); | |
1239 | return; | |
1240 | } | |
ef416fc2 | 1241 | } |
1242 | else if (!is_path_absolute(con->uri)) | |
1243 | { | |
1244 | /* | |
1245 | * Protect against malicious users! | |
1246 | */ | |
1247 | ||
5bd77a73 | 1248 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1249 | { |
1250 | cupsdCloseClient(con); | |
1251 | return; | |
1252 | } | |
ef416fc2 | 1253 | } |
1254 | else | |
1255 | { | |
1256 | if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") && | |
1257 | con->http.tls == NULL) | |
1258 | { | |
1259 | #ifdef HAVE_SSL | |
1260 | /* | |
1261 | * Do encryption stuff... | |
1262 | */ | |
1263 | ||
5bd77a73 | 1264 | if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1265 | { |
1266 | cupsdCloseClient(con); | |
1267 | return; | |
1268 | } | |
ef416fc2 | 1269 | |
1270 | httpPrintf(HTTP(con), "Connection: Upgrade\r\n"); | |
1271 | httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n"); | |
1272 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1273 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1274 | |
1275 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1276 | { |
1277 | cupsdCloseClient(con); | |
1278 | return; | |
1279 | } | |
ef416fc2 | 1280 | |
411affcf | 1281 | if (!encrypt_client(con)) |
f7deaa1a | 1282 | { |
1283 | cupsdCloseClient(con); | |
1284 | return; | |
1285 | } | |
ef416fc2 | 1286 | #else |
5bd77a73 | 1287 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1288 | { |
1289 | cupsdCloseClient(con); | |
1290 | return; | |
1291 | } | |
ef416fc2 | 1292 | #endif /* HAVE_SSL */ |
1293 | } | |
1294 | ||
1295 | if ((status = cupsdIsAuthorized(con, NULL)) != HTTP_OK) | |
1296 | { | |
1297 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
75bd9771 | 1298 | "cupsdReadClient: Unauthorized request for %s...", |
ef416fc2 | 1299 | con->uri); |
5bd77a73 | 1300 | cupsdSendError(con, status, CUPSD_AUTH_NONE); |
f7deaa1a | 1301 | cupsdCloseClient(con); |
1302 | return; | |
ef416fc2 | 1303 | } |
1304 | ||
b423cd4c | 1305 | if (con->http.expect && |
1306 | (con->operation == HTTP_POST || con->operation == HTTP_PUT)) | |
ef416fc2 | 1307 | { |
b423cd4c | 1308 | if (con->http.expect == HTTP_CONTINUE) |
1309 | { | |
1310 | /* | |
1311 | * Send 100-continue header... | |
1312 | */ | |
1313 | ||
5bd77a73 | 1314 | if (!cupsdSendHeader(con, HTTP_CONTINUE, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1315 | { |
1316 | cupsdCloseClient(con); | |
1317 | return; | |
1318 | } | |
b423cd4c | 1319 | } |
1320 | else | |
1321 | { | |
1322 | /* | |
1323 | * Send 417-expectation-failed header... | |
1324 | */ | |
1325 | ||
5bd77a73 | 1326 | if (!cupsdSendHeader(con, HTTP_EXPECTATION_FAILED, NULL, CUPSD_AUTH_NONE)) |
f7deaa1a | 1327 | { |
1328 | cupsdCloseClient(con); | |
1329 | return; | |
1330 | } | |
b423cd4c | 1331 | |
1332 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1333 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1334 | |
1335 | if (cupsdFlushHeader(con) < 0) | |
f7deaa1a | 1336 | { |
1337 | cupsdCloseClient(con); | |
1338 | return; | |
1339 | } | |
b423cd4c | 1340 | } |
ef416fc2 | 1341 | } |
1342 | ||
1343 | switch (con->http.state) | |
1344 | { | |
1345 | case HTTP_GET_SEND : | |
1346 | if (!strncmp(con->uri, "/printers/", 10) && | |
1347 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1348 | { | |
1349 | /* | |
1350 | * Send PPD file - get the real printer name since printer | |
1351 | * names are not case sensitive but filenames can be... | |
1352 | */ | |
1353 | ||
1354 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1355 | ||
1356 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1357 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1358 | else | |
1359 | { | |
5bd77a73 | 1360 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1361 | { |
1362 | cupsdCloseClient(con); | |
1363 | return; | |
1364 | } | |
ef416fc2 | 1365 | |
1366 | break; | |
1367 | } | |
1368 | } | |
1369 | ||
1370 | if ((!strncmp(con->uri, "/admin", 6) && | |
1371 | strncmp(con->uri, "/admin/conf/", 12) && | |
1372 | strncmp(con->uri, "/admin/log/", 11)) || | |
1373 | !strncmp(con->uri, "/printers", 9) || | |
1374 | !strncmp(con->uri, "/classes", 8) || | |
1375 | !strncmp(con->uri, "/help", 5) || | |
1376 | !strncmp(con->uri, "/jobs", 5)) | |
1377 | { | |
1378 | /* | |
1379 | * Send CGI output... | |
1380 | */ | |
1381 | ||
1382 | if (!strncmp(con->uri, "/admin", 6)) | |
1383 | { | |
1384 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1385 | ServerBin); | |
1386 | ||
b423cd4c | 1387 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1388 | } |
1389 | else if (!strncmp(con->uri, "/printers", 9)) | |
1390 | { | |
1391 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1392 | ServerBin); | |
b423cd4c | 1393 | |
1394 | if (con->uri[9] && con->uri[10]) | |
1395 | cupsdSetString(&con->options, con->uri + 9); | |
1396 | else | |
1397 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1398 | } |
1399 | else if (!strncmp(con->uri, "/classes", 8)) | |
1400 | { | |
1401 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1402 | ServerBin); | |
b423cd4c | 1403 | |
1404 | if (con->uri[8] && con->uri[9]) | |
1405 | cupsdSetString(&con->options, con->uri + 8); | |
1406 | else | |
1407 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1408 | } |
1409 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1410 | { | |
1411 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1412 | ServerBin); | |
b423cd4c | 1413 | |
1414 | if (con->uri[5] && con->uri[6]) | |
1415 | cupsdSetString(&con->options, con->uri + 5); | |
1416 | else | |
1417 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1418 | } |
1419 | else | |
1420 | { | |
1421 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1422 | ServerBin); | |
ef416fc2 | 1423 | |
b423cd4c | 1424 | if (con->uri[5] && con->uri[6]) |
1425 | cupsdSetString(&con->options, con->uri + 5); | |
1426 | else | |
1427 | cupsdSetString(&con->options, NULL); | |
1428 | } | |
ef416fc2 | 1429 | |
1430 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1431 | { | |
5bd77a73 | 1432 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1433 | { |
1434 | cupsdCloseClient(con); | |
1435 | return; | |
1436 | } | |
ef416fc2 | 1437 | } |
1438 | else | |
1439 | cupsdLogRequest(con, HTTP_OK); | |
1440 | ||
1441 | if (con->http.version <= HTTP_1_0) | |
1442 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1443 | } | |
1444 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1445 | (strchr(con->uri + 12, '/') || | |
1446 | strlen(con->uri) == 12)) || | |
1447 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1448 | (strchr(con->uri + 11, '/') || | |
1449 | strlen(con->uri) == 11))) | |
1450 | { | |
1451 | /* | |
1452 | * GET can only be done to configuration files under | |
1453 | * /admin/conf... | |
1454 | */ | |
1455 | ||
5bd77a73 | 1456 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1457 | { |
1458 | cupsdCloseClient(con); | |
1459 | return; | |
1460 | } | |
ef416fc2 | 1461 | |
1462 | break; | |
1463 | } | |
1464 | else | |
1465 | { | |
1466 | /* | |
1467 | * Serve a file... | |
1468 | */ | |
1469 | ||
1470 | if ((filename = get_file(con, &filestats, buf, | |
1471 | sizeof(buf))) == NULL) | |
1472 | { | |
5bd77a73 | 1473 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1474 | { |
1475 | cupsdCloseClient(con); | |
1476 | return; | |
1477 | } | |
ef416fc2 | 1478 | |
1479 | break; | |
1480 | } | |
1481 | ||
4400e98d | 1482 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1483 | |
e1d6a774 | 1484 | if (is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1485 | { |
1486 | /* | |
1487 | * Note: con->command and con->options were set by | |
e1d6a774 | 1488 | * is_cgi()... |
ef416fc2 | 1489 | */ |
1490 | ||
1491 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1492 | { | |
5bd77a73 | 1493 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1494 | { |
1495 | cupsdCloseClient(con); | |
1496 | return; | |
1497 | } | |
ef416fc2 | 1498 | } |
1499 | else | |
1500 | cupsdLogRequest(con, HTTP_OK); | |
1501 | ||
1502 | if (con->http.version <= HTTP_1_0) | |
1503 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1504 | break; | |
1505 | } | |
1506 | ||
1507 | if (!check_if_modified(con, &filestats)) | |
1508 | { | |
5bd77a73 | 1509 | if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1510 | { |
1511 | cupsdCloseClient(con); | |
1512 | return; | |
1513 | } | |
ef416fc2 | 1514 | } |
1515 | else | |
1516 | { | |
1517 | if (type == NULL) | |
1518 | strcpy(line, "text/plain"); | |
1519 | else | |
1520 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1521 | ||
a74454a7 | 1522 | if (!write_file(con, HTTP_OK, filename, line, &filestats)) |
f7deaa1a | 1523 | { |
1524 | cupsdCloseClient(con); | |
1525 | return; | |
1526 | } | |
ef416fc2 | 1527 | } |
1528 | } | |
1529 | break; | |
1530 | ||
1531 | case HTTP_POST_RECV : | |
1532 | /* | |
1533 | * See if the POST request includes a Content-Length field, and if | |
1534 | * so check the length against any limits that are set... | |
1535 | */ | |
1536 | ||
1537 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "POST %s", con->uri); | |
1538 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s", | |
1539 | con->http.fields[HTTP_FIELD_CONTENT_TYPE]); | |
1540 | ||
1541 | if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && | |
1542 | MaxRequestSize > 0 && | |
1543 | con->http.data_remaining > MaxRequestSize) | |
1544 | { | |
1545 | /* | |
1546 | * Request too large... | |
1547 | */ | |
1548 | ||
5bd77a73 | 1549 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1550 | { |
1551 | cupsdCloseClient(con); | |
1552 | return; | |
1553 | } | |
ef416fc2 | 1554 | |
1555 | break; | |
1556 | } | |
839a51c8 MS |
1557 | else if (con->http.data_remaining < 0 || |
1558 | (!con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && | |
1559 | con->http.data_encoding == HTTP_ENCODE_LENGTH)) | |
ef416fc2 | 1560 | { |
1561 | /* | |
1562 | * Negative content lengths are invalid! | |
1563 | */ | |
1564 | ||
5bd77a73 | 1565 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1566 | { |
1567 | cupsdCloseClient(con); | |
1568 | return; | |
1569 | } | |
ef416fc2 | 1570 | |
1571 | break; | |
1572 | } | |
1573 | ||
1574 | /* | |
1575 | * See what kind of POST request this is; for IPP requests the | |
1576 | * content-type field will be "application/ipp"... | |
1577 | */ | |
1578 | ||
1579 | if (!strcmp(con->http.fields[HTTP_FIELD_CONTENT_TYPE], | |
1580 | "application/ipp")) | |
1581 | con->request = ippNew(); | |
1582 | else if ((!strncmp(con->uri, "/admin", 6) && | |
1583 | strncmp(con->uri, "/admin/conf/", 12) && | |
1584 | strncmp(con->uri, "/admin/log/", 11)) || | |
1585 | !strncmp(con->uri, "/printers", 9) || | |
1586 | !strncmp(con->uri, "/classes", 8) || | |
1587 | !strncmp(con->uri, "/help", 5) || | |
1588 | !strncmp(con->uri, "/jobs", 5)) | |
1589 | { | |
1590 | /* | |
1591 | * CGI request... | |
1592 | */ | |
1593 | ||
1594 | if (!strncmp(con->uri, "/admin", 6)) | |
1595 | { | |
1596 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1597 | ServerBin); | |
1598 | ||
b423cd4c | 1599 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1600 | } |
1601 | else if (!strncmp(con->uri, "/printers", 9)) | |
1602 | { | |
1603 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1604 | ServerBin); | |
b423cd4c | 1605 | |
1606 | if (con->uri[9] && con->uri[10]) | |
1607 | cupsdSetString(&con->options, con->uri + 9); | |
1608 | else | |
1609 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1610 | } |
1611 | else if (!strncmp(con->uri, "/classes", 8)) | |
1612 | { | |
1613 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1614 | ServerBin); | |
b423cd4c | 1615 | |
1616 | if (con->uri[8] && con->uri[9]) | |
1617 | cupsdSetString(&con->options, con->uri + 8); | |
1618 | else | |
1619 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1620 | } |
1621 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1622 | { | |
1623 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1624 | ServerBin); | |
b423cd4c | 1625 | |
1626 | if (con->uri[5] && con->uri[6]) | |
1627 | cupsdSetString(&con->options, con->uri + 5); | |
1628 | else | |
1629 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1630 | } |
1631 | else | |
1632 | { | |
1633 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1634 | ServerBin); | |
ef416fc2 | 1635 | |
b423cd4c | 1636 | if (con->uri[5] && con->uri[6]) |
1637 | cupsdSetString(&con->options, con->uri + 5); | |
1638 | else | |
1639 | cupsdSetString(&con->options, NULL); | |
1640 | } | |
ef416fc2 | 1641 | |
1642 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
b423cd4c | 1643 | "cupsdReadClient: %d command=\"%s\", " |
1644 | "options = \"%s\"", | |
f301802f | 1645 | con->http.fd, con->command, |
1646 | con->options ? con->options : "(null)"); | |
ef416fc2 | 1647 | |
1648 | if (con->http.version <= HTTP_1_0) | |
1649 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1650 | } | |
1651 | else | |
1652 | { | |
1653 | /* | |
1654 | * POST to a file... | |
1655 | */ | |
1656 | ||
1657 | if ((filename = get_file(con, &filestats, buf, | |
1658 | sizeof(buf))) == NULL) | |
1659 | { | |
5bd77a73 | 1660 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1661 | { |
1662 | cupsdCloseClient(con); | |
1663 | return; | |
1664 | } | |
ef416fc2 | 1665 | |
1666 | break; | |
1667 | } | |
1668 | ||
4400e98d | 1669 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1670 | |
e1d6a774 | 1671 | if (!is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1672 | { |
1673 | /* | |
1674 | * Only POST to CGI's... | |
1675 | */ | |
1676 | ||
5bd77a73 | 1677 | if (!cupsdSendError(con, HTTP_UNAUTHORIZED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1678 | { |
1679 | cupsdCloseClient(con); | |
1680 | return; | |
1681 | } | |
ef416fc2 | 1682 | } |
1683 | } | |
1684 | break; | |
1685 | ||
1686 | case HTTP_PUT_RECV : | |
1687 | /* | |
1688 | * Validate the resource name... | |
1689 | */ | |
1690 | ||
1691 | if (strncmp(con->uri, "/admin/conf/", 12) || | |
1692 | strchr(con->uri + 12, '/') || | |
1693 | strlen(con->uri) == 12) | |
1694 | { | |
1695 | /* | |
1696 | * PUT can only be done to configuration files under | |
1697 | * /admin/conf... | |
1698 | */ | |
1699 | ||
5bd77a73 | 1700 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1701 | { |
1702 | cupsdCloseClient(con); | |
1703 | return; | |
1704 | } | |
ef416fc2 | 1705 | |
1706 | break; | |
1707 | } | |
1708 | ||
1709 | /* | |
1710 | * See if the PUT request includes a Content-Length field, and if | |
1711 | * so check the length against any limits that are set... | |
1712 | */ | |
1713 | ||
1714 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "PUT %s", con->uri); | |
1715 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s", | |
1716 | con->http.fields[HTTP_FIELD_CONTENT_TYPE]); | |
1717 | ||
1718 | if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && | |
1719 | MaxRequestSize > 0 && | |
1720 | con->http.data_remaining > MaxRequestSize) | |
1721 | { | |
1722 | /* | |
1723 | * Request too large... | |
1724 | */ | |
1725 | ||
5bd77a73 | 1726 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1727 | { |
1728 | cupsdCloseClient(con); | |
1729 | return; | |
1730 | } | |
ef416fc2 | 1731 | |
1732 | break; | |
1733 | } | |
1734 | else if (con->http.data_remaining < 0) | |
1735 | { | |
1736 | /* | |
1737 | * Negative content lengths are invalid! | |
1738 | */ | |
1739 | ||
5bd77a73 | 1740 | if (!cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE)) |
f7deaa1a | 1741 | { |
1742 | cupsdCloseClient(con); | |
1743 | return; | |
1744 | } | |
ef416fc2 | 1745 | |
1746 | break; | |
1747 | } | |
1748 | ||
1749 | /* | |
1750 | * Open a temporary file to hold the request... | |
1751 | */ | |
1752 | ||
1753 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, | |
1754 | request_id ++); | |
1755 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); | |
1756 | ||
ef416fc2 | 1757 | if (con->file < 0) |
1758 | { | |
a4924f6c MS |
1759 | cupsdLogMessage(CUPSD_LOG_ERROR, |
1760 | "Unable to create request file %s: %s", | |
1761 | con->filename, strerror(errno)); | |
1762 | ||
5bd77a73 | 1763 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1764 | { |
1765 | cupsdCloseClient(con); | |
1766 | return; | |
1767 | } | |
ef416fc2 | 1768 | } |
1769 | ||
a4924f6c MS |
1770 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
1771 | "cupsdReadClient: %d REQUEST %s=%d", con->http.fd, | |
1772 | con->filename, con->file); | |
1773 | ||
ef416fc2 | 1774 | fchmod(con->file, 0640); |
1775 | fchown(con->file, RunUser, Group); | |
1776 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1777 | break; | |
1778 | ||
1779 | case HTTP_DELETE : | |
1780 | case HTTP_TRACE : | |
5bd77a73 | 1781 | cupsdSendError(con, HTTP_NOT_IMPLEMENTED, CUPSD_AUTH_NONE); |
f7deaa1a | 1782 | cupsdCloseClient(con); |
1783 | return; | |
ef416fc2 | 1784 | |
1785 | case HTTP_HEAD : | |
1786 | if (!strncmp(con->uri, "/printers/", 10) && | |
1787 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1788 | { | |
1789 | /* | |
1790 | * Send PPD file - get the real printer name since printer | |
1791 | * names are not case sensitive but filenames can be... | |
1792 | */ | |
1793 | ||
1794 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1795 | ||
1796 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1797 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1798 | else | |
1799 | { | |
5bd77a73 | 1800 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 1801 | { |
1802 | cupsdCloseClient(con); | |
1803 | return; | |
1804 | } | |
ef416fc2 | 1805 | |
1806 | break; | |
1807 | } | |
1808 | } | |
1809 | ||
1810 | if ((!strncmp(con->uri, "/admin", 6) && | |
1811 | strncmp(con->uri, "/admin/conf/", 12) && | |
1812 | strncmp(con->uri, "/admin/log/", 11)) || | |
1813 | !strncmp(con->uri, "/printers", 9) || | |
1814 | !strncmp(con->uri, "/classes", 8) || | |
1815 | !strncmp(con->uri, "/help", 5) || | |
1816 | !strncmp(con->uri, "/jobs", 5)) | |
1817 | { | |
1818 | /* | |
1819 | * CGI output... | |
1820 | */ | |
1821 | ||
5bd77a73 | 1822 | if (!cupsdSendHeader(con, HTTP_OK, "text/html", CUPSD_AUTH_NONE)) |
f7deaa1a | 1823 | { |
1824 | cupsdCloseClient(con); | |
1825 | return; | |
1826 | } | |
ef416fc2 | 1827 | |
1828 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
f7deaa1a | 1829 | { |
1830 | cupsdCloseClient(con); | |
1831 | return; | |
1832 | } | |
ef416fc2 | 1833 | |
07725fee | 1834 | if (cupsdFlushHeader(con) < 0) |
f7deaa1a | 1835 | { |
1836 | cupsdCloseClient(con); | |
1837 | return; | |
1838 | } | |
d09495fa | 1839 | |
ef416fc2 | 1840 | cupsdLogRequest(con, HTTP_OK); |
1841 | } | |
1842 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1843 | (strchr(con->uri + 12, '/') || | |
1844 | strlen(con->uri) == 12)) || | |
1845 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1846 | (strchr(con->uri + 11, '/') || | |
1847 | strlen(con->uri) == 11))) | |
1848 | { | |
1849 | /* | |
1850 | * HEAD can only be done to configuration files under | |
1851 | * /admin/conf... | |
1852 | */ | |
1853 | ||
5bd77a73 | 1854 | if (!cupsdSendError(con, HTTP_FORBIDDEN, CUPSD_AUTH_NONE)) |
f7deaa1a | 1855 | { |
1856 | cupsdCloseClient(con); | |
1857 | return; | |
1858 | } | |
ef416fc2 | 1859 | |
1860 | break; | |
1861 | } | |
1862 | else if ((filename = get_file(con, &filestats, buf, | |
1863 | sizeof(buf))) == NULL) | |
1864 | { | |
5bd77a73 | 1865 | if (!cupsdSendHeader(con, HTTP_NOT_FOUND, "text/html", CUPSD_AUTH_NONE)) |
f7deaa1a | 1866 | { |
1867 | cupsdCloseClient(con); | |
1868 | return; | |
1869 | } | |
ef416fc2 | 1870 | |
1871 | cupsdLogRequest(con, HTTP_NOT_FOUND); | |
1872 | } | |
1873 | else if (!check_if_modified(con, &filestats)) | |
1874 | { | |
5bd77a73 | 1875 | if (!cupsdSendError(con, HTTP_NOT_MODIFIED, CUPSD_AUTH_NONE)) |
f7deaa1a | 1876 | { |
1877 | cupsdCloseClient(con); | |
1878 | return; | |
1879 | } | |
ef416fc2 | 1880 | |
1881 | cupsdLogRequest(con, HTTP_NOT_MODIFIED); | |
1882 | } | |
1883 | else | |
1884 | { | |
1885 | /* | |
1886 | * Serve a file... | |
1887 | */ | |
1888 | ||
4400e98d | 1889 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1890 | if (type == NULL) |
1891 | strcpy(line, "text/plain"); | |
1892 | else | |
1893 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1894 | ||
5bd77a73 | 1895 | if (!cupsdSendHeader(con, HTTP_OK, line, CUPSD_AUTH_NONE)) |
f7deaa1a | 1896 | { |
1897 | cupsdCloseClient(con); | |
1898 | return; | |
1899 | } | |
ef416fc2 | 1900 | |
1901 | if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n", | |
1902 | httpGetDateString(filestats.st_mtime)) < 0) | |
f7deaa1a | 1903 | { |
1904 | cupsdCloseClient(con); | |
1905 | return; | |
1906 | } | |
ef416fc2 | 1907 | |
1908 | if (httpPrintf(HTTP(con), "Content-Length: %lu\r\n", | |
1909 | (unsigned long)filestats.st_size) < 0) | |
f7deaa1a | 1910 | { |
1911 | cupsdCloseClient(con); | |
1912 | return; | |
1913 | } | |
ef416fc2 | 1914 | |
1915 | cupsdLogRequest(con, HTTP_OK); | |
1916 | } | |
1917 | ||
1918 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
f7deaa1a | 1919 | { |
1920 | cupsdCloseClient(con); | |
1921 | return; | |
1922 | } | |
ef416fc2 | 1923 | |
07725fee | 1924 | if (cupsdFlushHeader(con) < 0) |
f7deaa1a | 1925 | { |
1926 | cupsdCloseClient(con); | |
1927 | return; | |
1928 | } | |
d09495fa | 1929 | |
ef416fc2 | 1930 | con->http.state = HTTP_WAITING; |
1931 | break; | |
1932 | ||
1933 | default : | |
1934 | break; /* Anti-compiler-warning-code */ | |
1935 | } | |
1936 | } | |
1937 | } | |
1938 | ||
1939 | /* | |
1940 | * Handle any incoming data... | |
1941 | */ | |
1942 | ||
1943 | switch (con->http.state) | |
1944 | { | |
1945 | case HTTP_PUT_RECV : | |
1946 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1947 | "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_%s, " | |
1948 | "con->data_remaining=" CUPS_LLFMT ", con->file=%d", | |
1949 | con->http.fd, | |
1950 | con->http.data_encoding == HTTP_ENCODE_CHUNKED ? | |
1951 | "CHUNKED" : "LENGTH", | |
1952 | CUPS_LLCAST con->http.data_remaining, con->file); | |
1953 | ||
f7deaa1a | 1954 | do |
ef416fc2 | 1955 | { |
f7deaa1a | 1956 | if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0) |
1957 | { | |
1958 | cupsdCloseClient(con); | |
1959 | return; | |
1960 | } | |
1961 | else if (bytes > 0) | |
1962 | { | |
1963 | con->bytes += bytes; | |
ef416fc2 | 1964 | |
f7deaa1a | 1965 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
1966 | "cupsdReadClient: %d writing %d bytes to %d", | |
1967 | con->http.fd, bytes, con->file); | |
ef416fc2 | 1968 | |
f7deaa1a | 1969 | if (write(con->file, line, bytes) < bytes) |
1970 | { | |
1971 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1972 | "cupsdReadClient: Unable to write %d bytes to %s: %s", | |
1973 | bytes, con->filename, strerror(errno)); | |
ef416fc2 | 1974 | |
f7deaa1a | 1975 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
1976 | "cupsdReadClient: Closing data file %d...", | |
1977 | con->file); | |
ef416fc2 | 1978 | |
f7deaa1a | 1979 | close(con->file); |
1980 | con->file = -1; | |
1981 | unlink(con->filename); | |
1982 | cupsdClearString(&con->filename); | |
ef416fc2 | 1983 | |
5bd77a73 | 1984 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 1985 | { |
1986 | cupsdCloseClient(con); | |
1987 | return; | |
1988 | } | |
1989 | } | |
ef416fc2 | 1990 | } |
f7deaa1a | 1991 | } |
ee571f26 | 1992 | while (con->http.state == HTTP_PUT_RECV && data_ready(con)); |
ef416fc2 | 1993 | |
1994 | if (con->http.state == HTTP_WAITING) | |
1995 | { | |
1996 | /* | |
1997 | * End of file, see how big it is... | |
1998 | */ | |
1999 | ||
2000 | fstat(con->file, &filestats); | |
2001 | ||
2002 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2003 | "cupsdReadClient: %d Closing data file %d, size=" | |
2004 | CUPS_LLFMT ".", | |
2005 | con->http.fd, con->file, | |
2006 | CUPS_LLCAST filestats.st_size); | |
2007 | ||
2008 | close(con->file); | |
2009 | con->file = -1; | |
2010 | ||
2011 | if (filestats.st_size > MaxRequestSize && | |
2012 | MaxRequestSize > 0) | |
2013 | { | |
2014 | /* | |
2015 | * Request is too big; remove it and send an error... | |
2016 | */ | |
2017 | ||
2018 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2019 | "cupsdReadClient: %d Removing temp file %s", | |
2020 | con->http.fd, con->filename); | |
2021 | unlink(con->filename); | |
2022 | cupsdClearString(&con->filename); | |
2023 | ||
5bd77a73 | 2024 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2025 | { |
2026 | cupsdCloseClient(con); | |
2027 | return; | |
2028 | } | |
ef416fc2 | 2029 | } |
2030 | ||
2031 | /* | |
2032 | * Install the configuration file... | |
2033 | */ | |
2034 | ||
2035 | status = install_conf_file(con); | |
2036 | ||
2037 | /* | |
2038 | * Return the status to the client... | |
2039 | */ | |
2040 | ||
5bd77a73 | 2041 | if (!cupsdSendError(con, status, CUPSD_AUTH_NONE)) |
f7deaa1a | 2042 | { |
2043 | cupsdCloseClient(con); | |
2044 | return; | |
2045 | } | |
ef416fc2 | 2046 | } |
2047 | break; | |
2048 | ||
2049 | case HTTP_POST_RECV : | |
2050 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2051 | "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_" | |
2052 | "%s, con->data_remaining=" CUPS_LLFMT ", con->file=%d", | |
2053 | con->http.fd, | |
2054 | con->http.data_encoding == HTTP_ENCODE_CHUNKED ? | |
2055 | "CHUNKED" : "LENGTH", | |
2056 | CUPS_LLCAST con->http.data_remaining, con->file); | |
2057 | ||
f7deaa1a | 2058 | do |
ef416fc2 | 2059 | { |
f7deaa1a | 2060 | if (con->request) |
ef416fc2 | 2061 | { |
f7deaa1a | 2062 | /* |
2063 | * Grab any request data from the connection... | |
2064 | */ | |
ef416fc2 | 2065 | |
f7deaa1a | 2066 | if ((ipp_state = ippRead(&(con->http), con->request)) == IPP_ERROR) |
ef416fc2 | 2067 | { |
f7deaa1a | 2068 | cupsdLogMessage(CUPSD_LOG_ERROR, |
2069 | "cupsdReadClient: %d IPP Read Error!", | |
2070 | con->http.fd); | |
2071 | ||
5bd77a73 | 2072 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 2073 | cupsdCloseClient(con); |
2074 | return; | |
ef416fc2 | 2075 | } |
f7deaa1a | 2076 | else if (ipp_state != IPP_DATA) |
2077 | { | |
2078 | if (con->http.state == HTTP_POST_SEND) | |
2079 | { | |
5bd77a73 | 2080 | cupsdSendError(con, HTTP_BAD_REQUEST, CUPSD_AUTH_NONE); |
f7deaa1a | 2081 | cupsdCloseClient(con); |
2082 | return; | |
2083 | } | |
ef416fc2 | 2084 | |
f7deaa1a | 2085 | break; |
2086 | } | |
2087 | else | |
2088 | con->bytes += ippLength(con->request); | |
2089 | } | |
ef416fc2 | 2090 | |
f7deaa1a | 2091 | if (con->file < 0 && con->http.state != HTTP_POST_SEND) |
2092 | { | |
2093 | /* | |
2094 | * Create a file as needed for the request data... | |
2095 | */ | |
ef416fc2 | 2096 | |
f7deaa1a | 2097 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, request_id ++); |
2098 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); | |
ef416fc2 | 2099 | |
f7deaa1a | 2100 | if (con->file < 0) |
2101 | { | |
a4924f6c MS |
2102 | cupsdLogMessage(CUPSD_LOG_ERROR, |
2103 | "Unable to create request file %s: %s", | |
2104 | con->filename, strerror(errno)); | |
2105 | ||
5bd77a73 | 2106 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2107 | { |
2108 | cupsdCloseClient(con); | |
2109 | return; | |
2110 | } | |
2111 | } | |
ef416fc2 | 2112 | |
a4924f6c MS |
2113 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: %d REQUEST %s=%d", con->http.fd, |
2114 | con->filename, con->file); | |
2115 | ||
f7deaa1a | 2116 | fchmod(con->file, 0640); |
2117 | fchown(con->file, RunUser, Group); | |
2118 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
2119 | } | |
ef416fc2 | 2120 | |
f7deaa1a | 2121 | if (con->http.state != HTTP_POST_SEND) |
ef416fc2 | 2122 | { |
f7deaa1a | 2123 | if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0) |
2124 | { | |
2125 | cupsdCloseClient(con); | |
2126 | return; | |
2127 | } | |
2128 | else if (bytes > 0) | |
2129 | { | |
2130 | con->bytes += bytes; | |
ef416fc2 | 2131 | |
f7deaa1a | 2132 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
2133 | "cupsdReadClient: %d writing %d bytes to %d", | |
2134 | con->http.fd, bytes, con->file); | |
ef416fc2 | 2135 | |
f7deaa1a | 2136 | if (write(con->file, line, bytes) < bytes) |
2137 | { | |
2138 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2139 | "cupsdReadClient: Unable to write %d bytes to %s: %s", | |
2140 | bytes, con->filename, strerror(errno)); | |
ef416fc2 | 2141 | |
f7deaa1a | 2142 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
2143 | "cupsdReadClient: Closing file %d...", | |
2144 | con->file); | |
ef416fc2 | 2145 | |
f7deaa1a | 2146 | close(con->file); |
2147 | con->file = -1; | |
2148 | unlink(con->filename); | |
2149 | cupsdClearString(&con->filename); | |
ef416fc2 | 2150 | |
5bd77a73 | 2151 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2152 | { |
2153 | cupsdCloseClient(con); | |
2154 | return; | |
2155 | } | |
2156 | } | |
2157 | } | |
2158 | else if (con->http.state == HTTP_POST_RECV) | |
2159 | return; | |
2160 | else if (con->http.state != HTTP_POST_SEND) | |
2161 | { | |
2162 | cupsdCloseClient(con); | |
2163 | return; | |
ef416fc2 | 2164 | } |
2165 | } | |
f7deaa1a | 2166 | } |
ee571f26 | 2167 | while (con->http.state == HTTP_POST_RECV && data_ready(con)); |
ef416fc2 | 2168 | |
2169 | if (con->http.state == HTTP_POST_SEND) | |
2170 | { | |
2171 | if (con->file >= 0) | |
2172 | { | |
2173 | fstat(con->file, &filestats); | |
2174 | ||
2175 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2176 | "cupsdReadClient: %d Closing data file %d, " | |
2177 | "size=" CUPS_LLFMT ".", | |
2178 | con->http.fd, con->file, | |
2179 | CUPS_LLCAST filestats.st_size); | |
2180 | ||
2181 | close(con->file); | |
2182 | con->file = -1; | |
2183 | ||
2184 | if (filestats.st_size > MaxRequestSize && | |
2185 | MaxRequestSize > 0) | |
2186 | { | |
2187 | /* | |
2188 | * Request is too big; remove it and send an error... | |
2189 | */ | |
2190 | ||
2191 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2192 | "cupsdReadClient: %d Removing temp file %s", | |
2193 | con->http.fd, con->filename); | |
2194 | unlink(con->filename); | |
2195 | cupsdClearString(&con->filename); | |
2196 | ||
2197 | if (con->request) | |
2198 | { | |
2199 | /* | |
2200 | * Delete any IPP request data... | |
2201 | */ | |
2202 | ||
2203 | ippDelete(con->request); | |
2204 | con->request = NULL; | |
2205 | } | |
2206 | ||
5bd77a73 | 2207 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE, CUPSD_AUTH_NONE)) |
f7deaa1a | 2208 | { |
2209 | cupsdCloseClient(con); | |
2210 | return; | |
2211 | } | |
ef416fc2 | 2212 | } |
2213 | ||
2214 | if (con->command) | |
2215 | { | |
2216 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
2217 | { | |
5bd77a73 | 2218 | if (!cupsdSendError(con, HTTP_NOT_FOUND, CUPSD_AUTH_NONE)) |
f7deaa1a | 2219 | { |
2220 | cupsdCloseClient(con); | |
2221 | return; | |
2222 | } | |
ef416fc2 | 2223 | } |
2224 | else | |
2225 | cupsdLogRequest(con, HTTP_OK); | |
2226 | } | |
2227 | } | |
2228 | ||
2229 | if (con->request) | |
f7deaa1a | 2230 | { |
2231 | cupsdProcessIPPRequest(con); | |
bc44d920 | 2232 | |
2233 | if (con->filename) | |
2234 | { | |
2235 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2236 | "cupsdReadClient: %d Removing temp file %s", | |
2237 | con->http.fd, con->filename); | |
2238 | unlink(con->filename); | |
2239 | cupsdClearString(&con->filename); | |
2240 | } | |
2241 | ||
f7deaa1a | 2242 | return; |
2243 | } | |
ef416fc2 | 2244 | } |
2245 | break; | |
2246 | ||
2247 | default : | |
2248 | break; /* Anti-compiler-warning-code */ | |
2249 | } | |
2250 | ||
3dfe78b3 MS |
2251 | if (con->http.state == HTTP_WAITING) |
2252 | { | |
2253 | if (!con->http.keep_alive) | |
2254 | cupsdCloseClient(con); | |
2255 | else | |
2256 | { | |
2257 | cupsArrayRemove(ActiveClients, con); | |
2258 | cupsdSetBusyState(); | |
2259 | } | |
2260 | } | |
ef416fc2 | 2261 | } |
2262 | ||
2263 | ||
2264 | /* | |
2265 | * 'cupsdSendCommand()' - Send output from a command via HTTP. | |
2266 | */ | |
2267 | ||
2268 | int /* O - 1 on success, 0 on failure */ | |
2269 | cupsdSendCommand( | |
2270 | cupsd_client_t *con, /* I - Client connection */ | |
2271 | char *command, /* I - Command to run */ | |
2272 | char *options, /* I - Command-line options */ | |
2273 | int root) /* I - Run as root? */ | |
2274 | { | |
2275 | int fd; /* Standard input file descriptor */ | |
2276 | ||
2277 | ||
2278 | if (con->filename) | |
ed486911 | 2279 | { |
ef416fc2 | 2280 | fd = open(con->filename, O_RDONLY); |
ef416fc2 | 2281 | |
ed486911 | 2282 | if (fd < 0) |
2283 | { | |
2284 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2285 | "cupsdSendCommand: %d Unable to open \"%s\" for reading: %s", | |
2286 | con->http.fd, con->filename ? con->filename : "/dev/null", | |
2287 | strerror(errno)); | |
2288 | return (0); | |
2289 | } | |
ef416fc2 | 2290 | |
ed486911 | 2291 | fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); |
2292 | } | |
2293 | else | |
2294 | fd = -1; | |
ef416fc2 | 2295 | |
2296 | con->pipe_pid = pipe_command(con, fd, &(con->file), command, options, root); | |
2297 | ||
ed486911 | 2298 | if (fd >= 0) |
2299 | close(fd); | |
ef416fc2 | 2300 | |
2301 | cupsdLogMessage(CUPSD_LOG_INFO, "Started \"%s\" (pid=%d)", command, | |
2302 | con->pipe_pid); | |
2303 | ||
2304 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendCommand: %d file=%d", | |
2305 | con->http.fd, con->file); | |
2306 | ||
2307 | if (con->pipe_pid == 0) | |
2308 | return (0); | |
2309 | ||
2310 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
2311 | ||
f899b121 | 2312 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
ef416fc2 | 2313 | |
2314 | con->sent_header = 0; | |
2315 | con->file_ready = 0; | |
2316 | con->got_fields = 0; | |
2317 | con->field_col = 0; | |
2318 | ||
2319 | return (1); | |
2320 | } | |
2321 | ||
2322 | ||
2323 | /* | |
2324 | * 'cupsdSendError()' - Send an error message via HTTP. | |
2325 | */ | |
2326 | ||
2327 | int /* O - 1 if successful, 0 otherwise */ | |
2328 | cupsdSendError(cupsd_client_t *con, /* I - Connection */ | |
f899b121 | 2329 | http_status_t code, /* I - Error code */ |
2330 | int auth_type)/* I - Authentication type */ | |
ef416fc2 | 2331 | { |
4744bd90 | 2332 | #ifdef HAVE_SSL |
2333 | /* | |
2334 | * Force client to upgrade for authentication if that is how the | |
2335 | * server is configured... | |
2336 | */ | |
2337 | ||
2338 | if (code == HTTP_UNAUTHORIZED && | |
2339 | DefaultEncryption == HTTP_ENCRYPT_REQUIRED && | |
2340 | strcasecmp(con->http.hostname, "localhost") && | |
2341 | !con->http.tls) | |
2342 | { | |
2343 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2344 | "cupsdSendError: Encryption before authentication!"); | |
2345 | code = HTTP_UPGRADE_REQUIRED; | |
2346 | } | |
2347 | #endif /* HAVE_SSL */ | |
2348 | ||
ef416fc2 | 2349 | /* |
2350 | * Put the request in the access_log file... | |
2351 | */ | |
2352 | ||
2353 | cupsdLogRequest(con, code); | |
2354 | ||
2355 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendError: %d code=%d (%s)", | |
2356 | con->http.fd, code, httpStatus(code)); | |
2357 | ||
2358 | /* | |
2359 | * To work around bugs in some proxies, don't use Keep-Alive for some | |
2360 | * error messages... | |
f7deaa1a | 2361 | * |
2362 | * Kerberos authentication doesn't work without Keep-Alive, so | |
2363 | * never disable it in that case. | |
ef416fc2 | 2364 | */ |
2365 | ||
5bd77a73 | 2366 | if (code >= HTTP_BAD_REQUEST && con->http.auth_type != CUPSD_AUTH_NEGOTIATE) |
ef416fc2 | 2367 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; |
2368 | ||
2369 | /* | |
2370 | * Send an error message back to the client. If the error code is a | |
2371 | * 400 or 500 series, make sure the message contains some text, too! | |
2372 | */ | |
2373 | ||
f899b121 | 2374 | if (!cupsdSendHeader(con, code, NULL, auth_type)) |
ef416fc2 | 2375 | return (0); |
2376 | ||
2377 | #ifdef HAVE_SSL | |
2378 | if (code == HTTP_UPGRADE_REQUIRED) | |
2379 | if (httpPrintf(HTTP(con), "Connection: Upgrade\r\n") < 0) | |
2380 | return (0); | |
2381 | ||
2382 | if (httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0) | |
2383 | return (0); | |
2384 | #endif /* HAVE_SSL */ | |
2385 | ||
f7deaa1a | 2386 | if (con->http.version >= HTTP_1_1 && |
2387 | con->http.keep_alive == HTTP_KEEPALIVE_OFF) | |
ef416fc2 | 2388 | { |
2389 | if (httpPrintf(HTTP(con), "Connection: close\r\n") < 0) | |
2390 | return (0); | |
2391 | } | |
2392 | ||
2393 | if (code >= HTTP_BAD_REQUEST) | |
2394 | { | |
2395 | /* | |
2396 | * Send a human-readable error message. | |
2397 | */ | |
2398 | ||
80ca4592 | 2399 | char message[4096], /* Message for user */ |
2400 | urltext[1024], /* URL redirection text */ | |
2401 | redirect[1024]; /* Redirection link */ | |
ef416fc2 | 2402 | const char *text; /* Status-specific text */ |
2403 | ||
80ca4592 | 2404 | |
2405 | redirect[0] = '\0'; | |
2406 | ||
ef416fc2 | 2407 | if (code == HTTP_UNAUTHORIZED) |
2408 | text = _cupsLangString(con->language, | |
2409 | _("Enter your username and password or the " | |
2410 | "root username and password to access this " | |
f7deaa1a | 2411 | "page. If you are using Kerberos authentication, " |
2412 | "make sure you have a valid Kerberos ticket.")); | |
ef416fc2 | 2413 | else if (code == HTTP_UPGRADE_REQUIRED) |
80ca4592 | 2414 | { |
2415 | text = urltext; | |
2416 | ||
2417 | snprintf(urltext, sizeof(urltext), | |
2418 | _cupsLangString(con->language, | |
2419 | _("You must access this page using the URL " | |
2420 | "<A HREF=\"https://%s:%d%s\">" | |
2421 | "https://%s:%d%s</A>.")), | |
2422 | con->servername, con->serverport, con->uri, | |
2423 | con->servername, con->serverport, con->uri); | |
2424 | ||
2425 | snprintf(redirect, sizeof(redirect), | |
b86bc4cf | 2426 | "<META HTTP-EQUIV=\"Refresh\" " |
2427 | "CONTENT=\"3;URL=https://%s:%d%s\">\n", | |
80ca4592 | 2428 | con->servername, con->serverport, con->uri); |
2429 | } | |
ef416fc2 | 2430 | else |
2431 | text = ""; | |
2432 | ||
2433 | snprintf(message, sizeof(message), | |
2434 | "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" " | |
2435 | "\"http://www.w3.org/TR/REC-html40/loose.dtd\">\n" | |
2436 | "<HTML>\n" | |
2437 | "<HEAD>\n" | |
2438 | "\t<META HTTP-EQUIV=\"Content-Type\" " | |
2439 | "CONTENT=\"text/html; charset=utf-8\">\n" | |
2440 | "\t<TITLE>%d %s</TITLE>\n" | |
2441 | "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" " | |
2442 | "HREF=\"/cups.css\">\n" | |
80ca4592 | 2443 | "%s" |
ef416fc2 | 2444 | "</HEAD>\n" |
2445 | "<BODY>\n" | |
2446 | "<H1>%d %s</H1>\n" | |
2447 | "<P>%s</P>\n" | |
2448 | "</BODY>\n" | |
2449 | "</HTML>\n", | |
80ca4592 | 2450 | code, httpStatus(code), redirect, code, httpStatus(code), text); |
ef416fc2 | 2451 | |
2452 | if (httpPrintf(HTTP(con), "Content-Type: text/html; charset=utf-8\r\n") < 0) | |
2453 | return (0); | |
2454 | if (httpPrintf(HTTP(con), "Content-Length: %d\r\n", | |
2455 | (int)strlen(message)) < 0) | |
2456 | return (0); | |
2457 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
2458 | return (0); | |
2459 | if (httpPrintf(HTTP(con), "%s", message) < 0) | |
2460 | return (0); | |
2461 | } | |
2462 | else if (httpPrintf(HTTP(con), "\r\n") < 0) | |
2463 | return (0); | |
2464 | ||
07725fee | 2465 | if (cupsdFlushHeader(con) < 0) |
2466 | return (0); | |
d09495fa | 2467 | |
ef416fc2 | 2468 | con->http.state = HTTP_WAITING; |
2469 | ||
2470 | return (1); | |
2471 | } | |
2472 | ||
2473 | ||
ef416fc2 | 2474 | /* |
2475 | * 'cupsdSendHeader()' - Send an HTTP request. | |
2476 | */ | |
2477 | ||
2478 | int /* O - 1 on success, 0 on failure */ | |
f899b121 | 2479 | cupsdSendHeader( |
2480 | cupsd_client_t *con, /* I - Client to send to */ | |
2481 | http_status_t code, /* I - HTTP status code */ | |
2482 | char *type, /* I - MIME type of document */ | |
2483 | int auth_type) /* I - Type of authentication */ | |
ef416fc2 | 2484 | { |
5a738aea MS |
2485 | char auth_str[1024]; /* Authorization string */ |
2486 | #ifdef HAVE_GSSAPI | |
2487 | static char *gss_buf = NULL; /* Kerberos auth data buffer */ | |
2488 | static int gss_bufsize = 0; /* Size of Kerberos auth data buffer */ | |
2489 | #endif /* HAVE_GSSAPI */ | |
f7deaa1a | 2490 | |
2491 | ||
4744bd90 | 2492 | /* |
2493 | * Send the HTTP status header... | |
2494 | */ | |
2495 | ||
b423cd4c | 2496 | if (code == HTTP_CONTINUE) |
2497 | { | |
4744bd90 | 2498 | /* |
2499 | * 100-continue doesn't send any headers... | |
2500 | */ | |
2501 | ||
07725fee | 2502 | return (httpPrintf(HTTP(con), "HTTP/%d.%d 100 Continue\r\n\r\n", |
2503 | con->http.version / 100, con->http.version % 100) > 0); | |
b423cd4c | 2504 | } |
2505 | ||
07725fee | 2506 | httpFlushWrite(HTTP(con)); |
2507 | ||
2508 | con->http.data_encoding = HTTP_ENCODE_FIELDS; | |
2509 | ||
2510 | if (httpPrintf(HTTP(con), "HTTP/%d.%d %d %s\r\n", con->http.version / 100, | |
2511 | con->http.version % 100, code, httpStatus(code)) < 0) | |
2512 | return (0); | |
ef416fc2 | 2513 | if (httpPrintf(HTTP(con), "Date: %s\r\n", httpGetDateString(time(NULL))) < 0) |
2514 | return (0); | |
2515 | if (ServerHeader) | |
2516 | if (httpPrintf(HTTP(con), "Server: %s\r\n", ServerHeader) < 0) | |
2517 | return (0); | |
2518 | if (con->http.keep_alive && con->http.version >= HTTP_1_0) | |
2519 | { | |
2520 | if (httpPrintf(HTTP(con), "Connection: Keep-Alive\r\n") < 0) | |
2521 | return (0); | |
2522 | if (httpPrintf(HTTP(con), "Keep-Alive: timeout=%d\r\n", | |
2523 | KeepAliveTimeout) < 0) | |
2524 | return (0); | |
2525 | } | |
2526 | if (code == HTTP_METHOD_NOT_ALLOWED) | |
e6013cfa | 2527 | if (httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n") < 0) |
ef416fc2 | 2528 | return (0); |
2529 | ||
2530 | if (code == HTTP_UNAUTHORIZED) | |
2531 | { | |
5bd77a73 | 2532 | if (auth_type == CUPSD_AUTH_NONE) |
f899b121 | 2533 | { |
5bd77a73 | 2534 | if (!con->best || con->best->type <= CUPSD_AUTH_NONE) |
f899b121 | 2535 | auth_type = DefaultAuthType; |
2536 | else | |
2537 | auth_type = con->best->type; | |
2538 | } | |
f7deaa1a | 2539 | |
2540 | auth_str[0] = '\0'; | |
2541 | ||
5bd77a73 | 2542 | if (auth_type == CUPSD_AUTH_BASIC || auth_type == CUPSD_AUTH_BASICDIGEST) |
f7deaa1a | 2543 | strlcpy(auth_str, "Basic realm=\"CUPS\"", sizeof(auth_str)); |
5bd77a73 | 2544 | else if (auth_type == CUPSD_AUTH_DIGEST) |
f7deaa1a | 2545 | snprintf(auth_str, sizeof(auth_str), "Digest realm=\"CUPS\", nonce=\"%s\"", |
2546 | con->http.hostname); | |
2547 | #ifdef HAVE_GSSAPI | |
5bd77a73 | 2548 | else if (auth_type == CUPSD_AUTH_NEGOTIATE && con->gss_output_token.length == 0) |
f7deaa1a | 2549 | strlcpy(auth_str, "Negotiate", sizeof(auth_str)); |
2550 | #endif /* HAVE_GSSAPI */ | |
2551 | ||
2552 | #ifdef HAVE_AUTHORIZATION_H | |
5bd77a73 | 2553 | if (con->best && auth_type != CUPSD_AUTH_NEGOTIATE) |
ef416fc2 | 2554 | { |
f7deaa1a | 2555 | int i; /* Looping var */ |
2556 | char *auth_key; /* Auth key buffer */ | |
2557 | size_t auth_size; /* Size of remaining buffer */ | |
2558 | ||
2559 | ||
2560 | auth_key = auth_str + strlen(auth_str); | |
2561 | auth_size = sizeof(auth_str) - (auth_key - auth_str); | |
2562 | ||
2563 | for (i = 0; i < con->best->num_names; i ++) | |
2564 | { | |
2565 | if (!strncasecmp(con->best->names[i], "@AUTHKEY(", 9)) | |
2566 | { | |
2567 | snprintf(auth_key, auth_size, ", authkey=\"%s\"", | |
2568 | con->best->names[i] + 9); | |
2569 | /* end parenthesis is stripped in conf.c */ | |
2570 | break; | |
2571 | } | |
2572 | else if (!strcasecmp(con->best->names[i], "@SYSTEM") && | |
2573 | SystemGroupAuthKey) | |
2574 | { | |
2575 | snprintf(auth_key, auth_size, ", authkey=\"%s\"", SystemGroupAuthKey); | |
2576 | break; | |
2577 | } | |
2578 | } | |
ef416fc2 | 2579 | } |
f7deaa1a | 2580 | #endif /* HAVE_AUTHORIZATION_H */ |
2581 | ||
bc44d920 | 2582 | if (auth_str[0]) |
2583 | { | |
355e94dc | 2584 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendHeader: WWW-Authenticate: %s", |
bc44d920 | 2585 | auth_str); |
2586 | ||
2587 | if (httpPrintf(HTTP(con), "WWW-Authenticate: %s\r\n", auth_str) < 0) | |
2588 | return (0); | |
2589 | } | |
ef416fc2 | 2590 | } |
2591 | ||
f7deaa1a | 2592 | #ifdef HAVE_GSSAPI |
2593 | /* | |
2594 | * WWW-Authenticate: Negotiate can be included even for | |
2595 | * non-401 replies... | |
2596 | */ | |
2597 | ||
5a738aea | 2598 | if (con->gss_output_token.length > 0 && con->gss_output_token.length <= 65536) |
f7deaa1a | 2599 | { |
f7deaa1a | 2600 | OM_uint32 minor_status; /* Minor status code */ |
5a738aea MS |
2601 | int bufsize; /* Size of output token buffer */ |
2602 | ||
2603 | ||
2604 | bufsize = con->gss_output_token.length * 4 / 3 + 2; | |
2605 | ||
2606 | if (bufsize > gss_bufsize) | |
2607 | { | |
2608 | char *buf; /* New buffer */ | |
2609 | ||
f7deaa1a | 2610 | |
5a738aea | 2611 | bufsize = (bufsize + 1023) & 1023;/* Round up */ |
f7deaa1a | 2612 | |
5a738aea MS |
2613 | if (gss_buf) |
2614 | buf = realloc(gss_buf, bufsize); | |
2615 | else | |
2616 | buf = malloc(bufsize); | |
2617 | ||
2618 | if (!buf) | |
2619 | { | |
2620 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2621 | "Unable to allocate %d bytes for Kerberos credentials!", | |
2622 | bufsize); | |
2623 | return (0); | |
2624 | } | |
2625 | ||
2626 | gss_buf = buf; | |
2627 | gss_bufsize = bufsize; | |
2628 | } | |
2629 | ||
2630 | httpEncode64_2(gss_buf, gss_bufsize, | |
2631 | con->gss_output_token.value, | |
f7deaa1a | 2632 | con->gss_output_token.length); |
2633 | gss_release_buffer(&minor_status, &con->gss_output_token); | |
2634 | ||
355e94dc | 2635 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
5a738aea | 2636 | "cupsdSendHeader: WWW-Authenticate: Negotiate %s", gss_buf); |
355e94dc | 2637 | |
5a738aea MS |
2638 | if (httpPrintf(HTTP(con), "WWW-Authenticate: Negotiate %s\r\n", |
2639 | gss_buf) < 0) | |
f7deaa1a | 2640 | return (0); |
2641 | } | |
5a738aea MS |
2642 | else if (con->gss_output_token.length > 65536) |
2643 | { | |
2644 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2645 | "Kerberos credentials larger than 64k (%d)!", | |
ac884b6a | 2646 | (int)con->gss_output_token.length); |
5a738aea MS |
2647 | return (0); |
2648 | } | |
f7deaa1a | 2649 | #endif /* HAVE_GSSAPI */ |
2650 | ||
e1d6a774 | 2651 | if (con->language && strcmp(con->language->language, "C")) |
ef416fc2 | 2652 | { |
2653 | if (httpPrintf(HTTP(con), "Content-Language: %s\r\n", | |
2654 | con->language->language) < 0) | |
2655 | return (0); | |
2656 | } | |
2657 | ||
e1d6a774 | 2658 | if (type) |
ef416fc2 | 2659 | { |
2660 | if (!strcmp(type, "text/html")) | |
2661 | { | |
2662 | if (httpPrintf(HTTP(con), | |
2663 | "Content-Type: text/html; charset=utf-8\r\n") < 0) | |
2664 | return (0); | |
2665 | } | |
2666 | else if (httpPrintf(HTTP(con), "Content-Type: %s\r\n", type) < 0) | |
2667 | return (0); | |
2668 | } | |
2669 | ||
2670 | return (1); | |
2671 | } | |
2672 | ||
2673 | ||
2674 | /* | |
2675 | * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs. | |
2676 | */ | |
2677 | ||
2678 | void | |
2679 | cupsdUpdateCGI(void) | |
2680 | { | |
2681 | char *ptr, /* Pointer to end of line in buffer */ | |
2682 | message[1024]; /* Pointer to message text */ | |
2683 | int loglevel; /* Log level for message */ | |
2684 | ||
2685 | ||
2686 | while ((ptr = cupsdStatBufUpdate(CGIStatusBuffer, &loglevel, | |
2687 | message, sizeof(message))) != NULL) | |
2688 | if (!strchr(CGIStatusBuffer->buffer, '\n')) | |
2689 | break; | |
2690 | ||
d09495fa | 2691 | if (ptr == NULL && !CGIStatusBuffer->bufused) |
ef416fc2 | 2692 | { |
2693 | /* | |
2694 | * Fatal error on pipe - should never happen! | |
2695 | */ | |
2696 | ||
2697 | cupsdLogMessage(CUPSD_LOG_CRIT, | |
2698 | "cupsdUpdateCGI: error reading from CGI error pipe - %s", | |
2699 | strerror(errno)); | |
2700 | } | |
2701 | } | |
2702 | ||
2703 | ||
2704 | /* | |
2705 | * 'cupsdWriteClient()' - Write data to a client as needed. | |
2706 | */ | |
2707 | ||
f7deaa1a | 2708 | void |
ef416fc2 | 2709 | cupsdWriteClient(cupsd_client_t *con) /* I - Client connection */ |
2710 | { | |
2711 | int bytes; /* Number of bytes written */ | |
2712 | char buf[16385]; /* Data buffer */ | |
2713 | char *bufptr; /* Pointer into buffer */ | |
2714 | ipp_state_t ipp_state; /* IPP state value */ | |
2715 | ||
2716 | ||
2717 | #ifdef DEBUG | |
2718 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
b94498cf | 2719 | "cupsdWriteClient(con=%p) %d response=%p(%d), file=%d " |
ef416fc2 | 2720 | "pipe_pid=%d state=%d", |
ae71f5de MS |
2721 | con, con->http.fd, con->response, |
2722 | con->response ? con->response->state : -1, | |
b94498cf | 2723 | con->file, con->pipe_pid, con->http.state); |
ef416fc2 | 2724 | #endif /* DEBUG */ |
2725 | ||
2726 | if (con->http.state != HTTP_GET_SEND && | |
2727 | con->http.state != HTTP_POST_SEND) | |
f7deaa1a | 2728 | return; |
2729 | ||
2730 | if (con->pipe_pid) | |
2731 | { | |
2732 | /* | |
2733 | * Make sure we select on the CGI output... | |
2734 | */ | |
2735 | ||
f899b121 | 2736 | cupsdAddSelect(con->file, (cupsd_selfunc_t)write_pipe, NULL, con); |
f7deaa1a | 2737 | |
2738 | if (!con->file_ready) | |
2739 | { | |
2740 | /* | |
2741 | * Try again later when there is CGI output available... | |
2742 | */ | |
2743 | ||
2744 | cupsdRemoveSelect(con->http.fd); | |
2745 | return; | |
2746 | } | |
2747 | ||
2748 | con->file_ready = 0; | |
2749 | } | |
ef416fc2 | 2750 | |
b94498cf | 2751 | if (con->response && con->response->state != IPP_DATA) |
ef416fc2 | 2752 | { |
07725fee | 2753 | ipp_state = ippWrite(HTTP(con), con->response); |
b94498cf | 2754 | bytes = ipp_state != IPP_ERROR && |
2755 | (con->file >= 0 || ipp_state != IPP_DATA); | |
ef416fc2 | 2756 | } |
2757 | else if ((bytes = read(con->file, buf, sizeof(buf) - 1)) > 0) | |
2758 | { | |
2759 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2760 | "cupsdWriteClient: Read %d bytes from file %d...", | |
2761 | bytes, con->file); | |
2762 | ||
2763 | if (con->pipe_pid && !con->got_fields) | |
2764 | { | |
2765 | /* | |
2766 | * Inspect the data for Content-Type and other fields. | |
2767 | */ | |
2768 | ||
2769 | buf[bytes] = '\0'; | |
2770 | ||
2771 | for (bufptr = buf; !con->got_fields && *bufptr; bufptr ++) | |
d1c13e16 | 2772 | { |
ef416fc2 | 2773 | if (*bufptr == '\n') |
2774 | { | |
2775 | /* | |
2776 | * Send line to client... | |
2777 | */ | |
2778 | ||
2779 | if (bufptr > buf && bufptr[-1] == '\r') | |
2780 | bufptr[-1] = '\0'; | |
2781 | *bufptr++ = '\0'; | |
2782 | ||
d1c13e16 | 2783 | cupsdLogMessage(CUPSD_LOG_DEBUG, "Script header: %s", buf); |
ef416fc2 | 2784 | |
2785 | if (!con->sent_header) | |
2786 | { | |
2787 | /* | |
2788 | * Handle redirection and CGI status codes... | |
2789 | */ | |
2790 | ||
2791 | if (!strncasecmp(buf, "Location:", 9)) | |
d6ae789d | 2792 | { |
5bd77a73 | 2793 | cupsdSendHeader(con, HTTP_SEE_OTHER, NULL, CUPSD_AUTH_NONE); |
07725fee | 2794 | con->sent_header = 2; |
2795 | ||
d6ae789d | 2796 | if (httpPrintf(HTTP(con), "Content-Length: 0\r\n") < 0) |
f7deaa1a | 2797 | return; |
d6ae789d | 2798 | } |
ef416fc2 | 2799 | else if (!strncasecmp(buf, "Status:", 7)) |
07725fee | 2800 | { |
5bd77a73 | 2801 | cupsdSendError(con, (http_status_t)atoi(buf + 7), CUPSD_AUTH_NONE); |
07725fee | 2802 | con->sent_header = 2; |
2803 | } | |
ef416fc2 | 2804 | else |
4744bd90 | 2805 | { |
5bd77a73 | 2806 | cupsdSendHeader(con, HTTP_OK, NULL, CUPSD_AUTH_NONE); |
07725fee | 2807 | con->sent_header = 1; |
ef416fc2 | 2808 | |
4744bd90 | 2809 | if (con->http.version == HTTP_1_1) |
2810 | { | |
4744bd90 | 2811 | if (httpPrintf(HTTP(con), "Transfer-Encoding: chunked\r\n") < 0) |
f7deaa1a | 2812 | return; |
4744bd90 | 2813 | } |
2814 | } | |
ef416fc2 | 2815 | } |
2816 | ||
2817 | if (strncasecmp(buf, "Status:", 7)) | |
2818 | httpPrintf(HTTP(con), "%s\r\n", buf); | |
2819 | ||
2820 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d %s", | |
2821 | con->http.fd, buf); | |
2822 | ||
2823 | /* | |
2824 | * Update buffer... | |
2825 | */ | |
2826 | ||
2827 | bytes -= (bufptr - buf); | |
d1c13e16 MS |
2828 | |
2829 | if (bytes > 0) | |
2830 | memmove(buf, bufptr, bytes + 1); | |
2831 | else | |
2832 | buf[0] = '\0'; | |
2833 | ||
ef416fc2 | 2834 | bufptr = buf - 1; |
2835 | ||
2836 | /* | |
2837 | * See if the line was empty... | |
2838 | */ | |
2839 | ||
2840 | if (con->field_col == 0) | |
d09495fa | 2841 | { |
ef416fc2 | 2842 | con->got_fields = 1; |
d09495fa | 2843 | |
07725fee | 2844 | if (cupsdFlushHeader(con) < 0) |
2845 | { | |
2846 | cupsdCloseClient(con); | |
f7deaa1a | 2847 | return; |
07725fee | 2848 | } |
d09495fa | 2849 | |
2850 | if (con->http.version == HTTP_1_1) | |
2851 | con->http.data_encoding = HTTP_ENCODE_CHUNKED; | |
2852 | } | |
ef416fc2 | 2853 | else |
2854 | con->field_col = 0; | |
2855 | } | |
2856 | else if (*bufptr != '\r') | |
2857 | con->field_col ++; | |
d1c13e16 | 2858 | } |
ef416fc2 | 2859 | |
2860 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2861 | "cupsdWriteClient: %d bytes=%d, got_fields=%d", | |
2862 | con->http.fd, bytes, con->got_fields); | |
2863 | ||
2864 | if (bytes > 0 && !con->got_fields) | |
2865 | { | |
2866 | /* | |
2867 | * Remaining text needs to go out... | |
2868 | */ | |
2869 | ||
2870 | httpPrintf(HTTP(con), "%s", buf); | |
2871 | ||
2872 | con->http.activity = time(NULL); | |
f7deaa1a | 2873 | return; |
ef416fc2 | 2874 | } |
2875 | else if (bytes == 0) | |
47879b8b | 2876 | { |
ef416fc2 | 2877 | con->http.activity = time(NULL); |
47879b8b MS |
2878 | return; |
2879 | } | |
ef416fc2 | 2880 | } |
2881 | ||
4744bd90 | 2882 | if (bytes > 0) |
ef416fc2 | 2883 | { |
4744bd90 | 2884 | if (httpWrite2(HTTP(con), buf, bytes) < 0) |
2885 | { | |
2886 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2887 | "cupsdWriteClient: %d Write of %d bytes failed!", | |
2888 | con->http.fd, bytes); | |
ef416fc2 | 2889 | |
4744bd90 | 2890 | cupsdCloseClient(con); |
f7deaa1a | 2891 | return; |
4744bd90 | 2892 | } |
ef416fc2 | 2893 | |
01ce6322 MS |
2894 | if (con->http.data_encoding == HTTP_ENCODE_CHUNKED) |
2895 | httpFlushWrite(HTTP(con)); | |
ae71f5de | 2896 | |
4744bd90 | 2897 | con->bytes += bytes; |
ef416fc2 | 2898 | |
4744bd90 | 2899 | if (con->http.state == HTTP_WAITING) |
2900 | bytes = 0; | |
2901 | } | |
ef416fc2 | 2902 | } |
2903 | ||
2904 | if (bytes <= 0) | |
2905 | { | |
2906 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d bytes < 0", | |
2907 | con->http.fd); | |
2908 | ||
2909 | cupsdLogRequest(con, HTTP_OK); | |
2910 | ||
2911 | httpFlushWrite(HTTP(con)); | |
2912 | ||
07725fee | 2913 | if (con->http.data_encoding == HTTP_ENCODE_CHUNKED && con->sent_header == 1) |
ef416fc2 | 2914 | { |
07725fee | 2915 | if (httpWrite2(HTTP(con), "", 0) < 0) |
ef416fc2 | 2916 | { |
2917 | cupsdCloseClient(con); | |
f7deaa1a | 2918 | return; |
ef416fc2 | 2919 | } |
2920 | } | |
2921 | ||
2922 | con->http.state = HTTP_WAITING; | |
2923 | ||
f7deaa1a | 2924 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, NULL, con); |
ef416fc2 | 2925 | |
2926 | if (con->file >= 0) | |
2927 | { | |
f7deaa1a | 2928 | cupsdRemoveSelect(con->file); |
ef416fc2 | 2929 | |
2930 | if (con->pipe_pid) | |
2931 | cupsdEndProcess(con->pipe_pid, 0); | |
2932 | ||
2933 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2934 | "cupsdWriteClient: %d Closing data file %d.", | |
2935 | con->http.fd, con->file); | |
2936 | ||
2937 | close(con->file); | |
2938 | con->file = -1; | |
2939 | con->pipe_pid = 0; | |
2940 | } | |
2941 | ||
2942 | if (con->filename) | |
2943 | { | |
2944 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2945 | "cupsdWriteClient: %d Removing temp file %s", | |
2946 | con->http.fd, con->filename); | |
2947 | unlink(con->filename); | |
2948 | cupsdClearString(&con->filename); | |
2949 | } | |
2950 | ||
2abf387c | 2951 | if (con->request) |
ef416fc2 | 2952 | { |
2953 | ippDelete(con->request); | |
2954 | con->request = NULL; | |
2955 | } | |
2956 | ||
2abf387c | 2957 | if (con->response) |
ef416fc2 | 2958 | { |
2959 | ippDelete(con->response); | |
2960 | con->response = NULL; | |
2961 | } | |
2962 | ||
2963 | cupsdClearString(&con->command); | |
2964 | cupsdClearString(&con->options); | |
b86bc4cf | 2965 | cupsdClearString(&con->query_string); |
ef416fc2 | 2966 | |
2967 | if (!con->http.keep_alive) | |
2968 | { | |
2969 | cupsdCloseClient(con); | |
f7deaa1a | 2970 | return; |
ef416fc2 | 2971 | } |
2972 | } | |
2973 | ||
2974 | con->http.activity = time(NULL); | |
f7deaa1a | 2975 | } |
ef416fc2 | 2976 | |
f7deaa1a | 2977 | |
e1d6a774 | 2978 | /* |
2979 | * 'check_if_modified()' - Decode an "If-Modified-Since" line. | |
2980 | */ | |
2981 | ||
2982 | static int /* O - 1 if modified since */ | |
2983 | check_if_modified( | |
2984 | cupsd_client_t *con, /* I - Client connection */ | |
2985 | struct stat *filestats) /* I - File information */ | |
2986 | { | |
2987 | char *ptr; /* Pointer into field */ | |
2988 | time_t date; /* Time/date value */ | |
2989 | off_t size; /* Size/length value */ | |
2990 | ||
2991 | ||
2992 | size = 0; | |
2993 | date = 0; | |
2994 | ptr = con->http.fields[HTTP_FIELD_IF_MODIFIED_SINCE]; | |
2995 | ||
2996 | if (*ptr == '\0') | |
2997 | return (1); | |
2998 | ||
2999 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3000 | "check_if_modified: %d If-Modified-Since=\"%s\"", | |
3001 | con->http.fd, ptr); | |
3002 | ||
3003 | while (*ptr != '\0') | |
3004 | { | |
3005 | while (isspace(*ptr) || *ptr == ';') | |
3006 | ptr ++; | |
3007 | ||
3008 | if (strncasecmp(ptr, "length=", 7) == 0) | |
3009 | { | |
3010 | ptr += 7; | |
3011 | size = strtoll(ptr, NULL, 10); | |
3012 | ||
3013 | while (isdigit(*ptr)) | |
3014 | ptr ++; | |
3015 | } | |
3016 | else if (isalpha(*ptr)) | |
3017 | { | |
3018 | date = httpGetDateTime(ptr); | |
3019 | while (*ptr != '\0' && *ptr != ';') | |
3020 | ptr ++; | |
3021 | } | |
e53920b9 | 3022 | else |
3023 | ptr ++; | |
e1d6a774 | 3024 | } |
3025 | ||
3026 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3027 | "check_if_modified: %d sizes=" CUPS_LLFMT "," | |
3028 | CUPS_LLFMT " dates=%d,%d", | |
3029 | con->http.fd, CUPS_LLCAST size, | |
3030 | CUPS_LLCAST filestats->st_size, (int)date, | |
3031 | (int)filestats->st_mtime); | |
3032 | ||
3033 | return ((size != filestats->st_size && size != 0) || | |
3034 | (date < filestats->st_mtime && date != 0) || | |
3035 | (size == 0 && date == 0)); | |
3036 | } | |
3037 | ||
3038 | ||
3dfe78b3 MS |
3039 | /* |
3040 | * 'compare_clients()' - Compare two client connections. | |
3041 | */ | |
3042 | ||
3043 | static int /* O - Result of comparison */ | |
3044 | compare_clients(cupsd_client_t *a, /* I - First client */ | |
3045 | cupsd_client_t *b, /* I - Second client */ | |
3046 | void *data) /* I - User data (not used) */ | |
3047 | { | |
3048 | (void)data; | |
3049 | ||
3050 | if (a == b) | |
3051 | return (0); | |
3052 | else if (a < b) | |
3053 | return (-1); | |
3054 | else | |
3055 | return (1); | |
3056 | } | |
3057 | ||
3058 | ||
ee571f26 MS |
3059 | /* |
3060 | * 'data_ready()' - Check whether data is available from a client. | |
3061 | */ | |
3062 | ||
3063 | static int /* O - 1 if data is ready, 0 otherwise */ | |
3064 | data_ready(cupsd_client_t *con) /* I - Client */ | |
3065 | { | |
3066 | if (con->http.used > 0) | |
3067 | return (1); | |
3068 | #ifdef HAVE_SSL | |
3069 | else if (con->http.tls) | |
3070 | { | |
3071 | # ifdef HAVE_LIBSSL | |
3072 | if (SSL_pending((SSL *)(con->http.tls))) | |
3073 | return (1); | |
3074 | # elif defined(HAVE_GNUTLS) | |
3075 | if (gnutls_record_check_pending(((http_tls_t *)(con->http.tls))->session)) | |
3076 | return (1); | |
3077 | # elif defined(HAVE_CDSASSL) | |
3078 | size_t bytes; /* Bytes that are available */ | |
3079 | ||
3080 | if (!SSLGetBufferedReadSize(((http_tls_t *)(con->http.tls))->session, | |
3081 | &bytes) && bytes > 0) | |
3082 | return (1); | |
3083 | # endif /* HAVE_LIBSSL */ | |
3084 | } | |
3085 | #endif /* HAVE_SSL */ | |
3086 | ||
3087 | return (0); | |
3088 | } | |
3089 | ||
3090 | ||
80ca4592 | 3091 | #ifdef HAVE_SSL |
e1d6a774 | 3092 | /* |
3093 | * 'encrypt_client()' - Enable encryption for the client... | |
3094 | */ | |
3095 | ||
3096 | static int /* O - 1 on success, 0 on error */ | |
3097 | encrypt_client(cupsd_client_t *con) /* I - Client to encrypt */ | |
3098 | { | |
80ca4592 | 3099 | # ifdef HAVE_LIBSSL |
e1d6a774 | 3100 | SSL_CTX *context; /* Context for encryption */ |
3101 | SSL *conn; /* Connection for encryption */ | |
411affcf | 3102 | BIO *bio; /* BIO data */ |
e1d6a774 | 3103 | unsigned long error; /* Error code */ |
3104 | ||
3105 | ||
8ca02f3c | 3106 | /* |
3107 | * Verify that we have a certificate... | |
3108 | */ | |
3109 | ||
3110 | if (access(ServerKey, 0) || access(ServerCertificate, 0)) | |
3111 | { | |
3112 | /* | |
3113 | * Nope, make a self-signed certificate... | |
3114 | */ | |
3115 | ||
b86bc4cf | 3116 | if (!make_certificate(con)) |
8ca02f3c | 3117 | return (0); |
3118 | } | |
3119 | ||
e1d6a774 | 3120 | /* |
3121 | * Create the SSL context and accept the connection... | |
3122 | */ | |
3123 | ||
3124 | context = SSL_CTX_new(SSLv23_server_method()); | |
3125 | ||
3126 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
b19ccc9e | 3127 | if (SSLOptions & CUPSD_SSL_NOEMPTY) |
58dc1933 | 3128 | SSL_CTX_set_options(context, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS); |
e1d6a774 | 3129 | SSL_CTX_use_PrivateKey_file(context, ServerKey, SSL_FILETYPE_PEM); |
58dc1933 | 3130 | SSL_CTX_use_certificate_chain_file(context, ServerCertificate); |
e1d6a774 | 3131 | |
411affcf | 3132 | bio = BIO_new(_httpBIOMethods()); |
3133 | BIO_ctrl(bio, BIO_C_SET_FILE_PTR, 0, (char *)HTTP(con)); | |
3134 | ||
e1d6a774 | 3135 | conn = SSL_new(context); |
411affcf | 3136 | SSL_set_bio(conn, bio, bio); |
e1d6a774 | 3137 | |
e1d6a774 | 3138 | if (SSL_accept(conn) != 1) |
3139 | { | |
3140 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3141 | "encrypt_client: Unable to encrypt connection from %s!", | |
3142 | con->http.hostname); | |
3143 | ||
3144 | while ((error = ERR_get_error()) != 0) | |
3145 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", | |
3146 | ERR_error_string(error, NULL)); | |
3147 | ||
3148 | SSL_CTX_free(context); | |
3149 | SSL_free(conn); | |
3150 | return (0); | |
3151 | } | |
3152 | ||
3153 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
3154 | "encrypt_client: %d Connection from %s now encrypted.", | |
3155 | con->http.fd, con->http.hostname); | |
3156 | ||
3157 | con->http.tls = conn; | |
3158 | return (1); | |
f7deaa1a | 3159 | |
80ca4592 | 3160 | # elif defined(HAVE_GNUTLS) |
e1d6a774 | 3161 | http_tls_t *conn; /* TLS session object */ |
3162 | int error; /* Error code */ | |
3163 | gnutls_certificate_server_credentials *credentials; | |
3164 | /* TLS credentials */ | |
3165 | ||
3166 | ||
3167 | /* | |
3168 | * Verify that we have a certificate... | |
3169 | */ | |
3170 | ||
3171 | if (access(ServerKey, 0) || access(ServerCertificate, 0)) | |
3172 | { | |
3173 | /* | |
3174 | * Nope, make a self-signed certificate... | |
3175 | */ | |
3176 | ||
b86bc4cf | 3177 | if (!make_certificate(con)) |
8ca02f3c | 3178 | return (0); |
e1d6a774 | 3179 | } |
3180 | ||
3181 | /* | |
3182 | * Create the SSL object and perform the SSL handshake... | |
3183 | */ | |
3184 | ||
89d46774 | 3185 | conn = (http_tls_t *)malloc(sizeof(http_tls_t)); |
e1d6a774 | 3186 | |
3187 | if (conn == NULL) | |
3188 | return (0); | |
3189 | ||
3190 | credentials = (gnutls_certificate_server_credentials *) | |
3191 | malloc(sizeof(gnutls_certificate_server_credentials)); | |
3192 | if (credentials == NULL) | |
3193 | { | |
3194 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3195 | "encrypt_client: Unable to encrypt connection from %s!", | |
3196 | con->http.hostname); | |
3197 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", strerror(errno)); | |
3198 | ||
3199 | free(conn); | |
3200 | return (0); | |
3201 | } | |
3202 | ||
3203 | gnutls_certificate_allocate_credentials(credentials); | |
f7deaa1a | 3204 | gnutls_certificate_set_x509_key_file(*credentials, ServerCertificate, |
e1d6a774 | 3205 | ServerKey, GNUTLS_X509_FMT_PEM); |
3206 | ||
3207 | gnutls_init(&(conn->session), GNUTLS_SERVER); | |
3208 | gnutls_set_default_priority(conn->session); | |
3209 | gnutls_credentials_set(conn->session, GNUTLS_CRD_CERTIFICATE, *credentials); | |
411affcf | 3210 | gnutls_transport_set_ptr(conn->session, (gnutls_transport_ptr)HTTP(con)); |
3211 | gnutls_transport_set_pull_function(conn->session, _httpReadGNUTLS); | |
3212 | gnutls_transport_set_push_function(conn->session, _httpWriteGNUTLS); | |
e1d6a774 | 3213 | |
3214 | error = gnutls_handshake(conn->session); | |
3215 | ||
3216 | if (error != GNUTLS_E_SUCCESS) | |
3217 | { | |
3218 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3219 | "encrypt_client: Unable to encrypt connection from %s!", | |
3220 | con->http.hostname); | |
3221 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", | |
3222 | gnutls_strerror(error)); | |
3223 | ||
3224 | gnutls_deinit(conn->session); | |
3225 | gnutls_certificate_free_credentials(*credentials); | |
3226 | free(conn); | |
3227 | free(credentials); | |
3228 | return (0); | |
3229 | } | |
3230 | ||
3231 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
3232 | "encrypt_client: %d Connection from %s now encrypted.", | |
3233 | con->http.fd, con->http.hostname); | |
3234 | ||
3235 | conn->credentials = credentials; | |
3236 | con->http.tls = conn; | |
3237 | return (1); | |
3238 | ||
80ca4592 | 3239 | # elif defined(HAVE_CDSASSL) |
89d46774 | 3240 | OSStatus error; /* Error code */ |
3241 | http_tls_t *conn; /* CDSA connection information */ | |
e1d6a774 | 3242 | |
3243 | ||
89d46774 | 3244 | if ((conn = (http_tls_t *)malloc(sizeof(http_tls_t))) == NULL) |
3245 | return (0); | |
e1d6a774 | 3246 | |
89d46774 | 3247 | error = 0; |
3248 | conn->session = NULL; | |
b86bc4cf | 3249 | conn->certsArray = get_cdsa_certificate(con); |
e1d6a774 | 3250 | |
8ca02f3c | 3251 | if (!conn->certsArray) |
3252 | { | |
3253 | /* | |
3254 | * No keychain (yet), make a self-signed certificate... | |
3255 | */ | |
3256 | ||
b86bc4cf | 3257 | if (make_certificate(con)) |
3258 | conn->certsArray = get_cdsa_certificate(con); | |
8ca02f3c | 3259 | } |
3260 | ||
89d46774 | 3261 | if (!conn->certsArray) |
e1d6a774 | 3262 | { |
3263 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
411affcf | 3264 | "encrypt_client: Could not find signing key in keychain " |
e1d6a774 | 3265 | "\"%s\"", ServerCertificate); |
3266 | error = errSSLBadCert; /* errSSLBadConfiguration is a better choice, but not available on 10.2.x */ | |
3267 | } | |
3268 | ||
3269 | if (!error) | |
89d46774 | 3270 | error = SSLNewContext(true, &conn->session); |
e1d6a774 | 3271 | |
3272 | if (!error) | |
89d46774 | 3273 | error = SSLSetIOFuncs(conn->session, _httpReadCDSA, _httpWriteCDSA); |
3274 | ||
3275 | if (!error) | |
ed486911 | 3276 | error = SSLSetProtocolVersionEnabled(conn->session, kSSLProtocol2, false); |
e1d6a774 | 3277 | |
3278 | if (!error) | |
411affcf | 3279 | error = SSLSetConnection(conn->session, HTTP(con)); |
e1d6a774 | 3280 | |
3281 | if (!error) | |
89d46774 | 3282 | error = SSLSetAllowsExpiredCerts(conn->session, true); |
e1d6a774 | 3283 | |
3284 | if (!error) | |
89d46774 | 3285 | error = SSLSetAllowsAnyRoot(conn->session, true); |
ef416fc2 | 3286 | |
89d46774 | 3287 | if (!error) |
3288 | error = SSLSetCertificate(conn->session, conn->certsArray); | |
ef416fc2 | 3289 | |
e1d6a774 | 3290 | if (!error) |
3291 | { | |
3292 | /* | |
3293 | * Perform SSL/TLS handshake | |
3294 | */ | |
ef416fc2 | 3295 | |
89d46774 | 3296 | while ((error = SSLHandshake(conn->session)) == errSSLWouldBlock) |
e1d6a774 | 3297 | usleep(1000); |
3298 | } | |
ef416fc2 | 3299 | |
e1d6a774 | 3300 | if (error) |
3301 | { | |
3302 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3303 | "encrypt_client: Unable to encrypt connection from %s!", | |
3304 | con->http.hostname); | |
ef416fc2 | 3305 | |
ed486911 | 3306 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s (%d)", |
3307 | cssmErrorString(error), (int)error); | |
ef416fc2 | 3308 | |
e1d6a774 | 3309 | con->http.error = error; |
3310 | con->http.status = HTTP_ERROR; | |
ef416fc2 | 3311 | |
89d46774 | 3312 | if (conn->session) |
3313 | SSLDisposeContext(conn->session); | |
3314 | ||
3315 | if (conn->certsArray) | |
3316 | CFRelease(conn->certsArray); | |
3317 | ||
3318 | free(conn); | |
ef416fc2 | 3319 | |
e1d6a774 | 3320 | return (0); |
ef416fc2 | 3321 | } |
3322 | ||
e1d6a774 | 3323 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
3324 | "encrypt_client: %d Connection from %s now encrypted.", | |
3325 | con->http.fd, con->http.hostname); | |
ef416fc2 | 3326 | |
e1d6a774 | 3327 | con->http.tls = conn; |
3328 | return (1); | |
3329 | ||
80ca4592 | 3330 | # endif /* HAVE_LIBSSL */ |
ef416fc2 | 3331 | } |
80ca4592 | 3332 | #endif /* HAVE_SSL */ |
ef416fc2 | 3333 | |
3334 | ||
3335 | #ifdef HAVE_CDSASSL | |
3336 | /* | |
b86bc4cf | 3337 | * 'get_cdsa_certificate()' - Get a SSL/TLS certificate from the System keychain. |
ef416fc2 | 3338 | */ |
3339 | ||
b86bc4cf | 3340 | static CFArrayRef /* O - Array of certificates */ |
3341 | get_cdsa_certificate(cupsd_client_t *con) /* I - Client connection */ | |
ef416fc2 | 3342 | { |
3343 | OSStatus err; /* Error info */ | |
b86bc4cf | 3344 | SecKeychainRef keychain; /* Keychain reference */ |
3345 | SecIdentitySearchRef search; /* Search reference */ | |
ef416fc2 | 3346 | SecIdentityRef identity; /* Identity */ |
b86bc4cf | 3347 | CFArrayRef certificates = NULL; |
3348 | /* Certificate array */ | |
ef416fc2 | 3349 | |
3350 | ||
b86bc4cf | 3351 | if ((err = SecKeychainOpen(ServerCertificate, &keychain))) |
3352 | { | |
3353 | cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot open keychain \"%s\", %s", | |
3354 | ServerCertificate, cssmErrorString(err)); | |
3355 | return (NULL); | |
3356 | } | |
ef416fc2 | 3357 | |
b86bc4cf | 3358 | # if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY |
3359 | /* | |
3360 | * Use a policy to search for valid certificates who's common name matches the | |
3361 | * servername... | |
3362 | */ | |
3363 | ||
3364 | SecPolicySearchRef policy_search; /* Policy search ref */ | |
3365 | SecPolicyRef policy; /* Policy ref */ | |
3366 | CSSM_DATA options; /* Policy options */ | |
3367 | CSSM_APPLE_TP_SSL_OPTIONS | |
3368 | ssl_options; /* SSL Option for hostname */ | |
3369 | ||
3370 | ||
1f0275e3 MS |
3371 | if (SecPolicySearchCreate(CSSM_CERT_X_509v3, &CSSMOID_APPLE_TP_SSL, |
3372 | NULL, &policy_search)) | |
ef416fc2 | 3373 | { |
b86bc4cf | 3374 | cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot create a policy search reference"); |
3375 | CFRelease(keychain); | |
3376 | return (NULL); | |
3377 | } | |
ef416fc2 | 3378 | |
1f0275e3 | 3379 | if (SecPolicySearchCopyNext(policy_search, &policy)) |
b86bc4cf | 3380 | { |
3381 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3382 | "Cannot find a policy to use for searching"); | |
3383 | CFRelease(keychain); | |
3384 | CFRelease(policy_search); | |
3385 | return (NULL); | |
3386 | } | |
ef416fc2 | 3387 | |
b86bc4cf | 3388 | memset(&ssl_options, 0, sizeof(ssl_options)); |
3389 | ssl_options.Version = CSSM_APPLE_TP_SSL_OPTS_VERSION; | |
3390 | ssl_options.ServerName = con->servername; | |
3391 | ssl_options.ServerNameLen = strlen(con->servername); | |
ef416fc2 | 3392 | |
b86bc4cf | 3393 | options.Data = (uint8 *)&ssl_options; |
3394 | options.Length = sizeof(ssl_options); | |
3395 | ||
1f0275e3 | 3396 | if (SecPolicySetValue(policy, &options)) |
b86bc4cf | 3397 | { |
3398 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3399 | "Cannot set policy value to use for searching"); | |
3400 | CFRelease(keychain); | |
3401 | CFRelease(policy_search); | |
3402 | return (NULL); | |
3403 | } | |
3404 | ||
3405 | err = SecIdentitySearchCreateWithPolicy(policy, NULL, CSSM_KEYUSE_SIGN, | |
3406 | keychain, FALSE, &search); | |
3407 | # else | |
3408 | /* | |
3409 | * Assume there is exactly one SecIdentity in the keychain... | |
3410 | */ | |
3411 | ||
3412 | err = SecIdentitySearchCreate(keychain, CSSM_KEYUSE_SIGN, &search); | |
3413 | # endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */ | |
3414 | ||
3415 | if (err) | |
3416 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
3417 | "Cannot create keychain search reference: %s", | |
3418 | cssmErrorString(err)); | |
3419 | else | |
3420 | { | |
3421 | if ((err = SecIdentitySearchCopyNext(search, &identity))) | |
3422 | { | |
3423 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
ef416fc2 | 3424 | "Cannot find signing key in keychain \"%s\", error %d", |
3425 | ServerCertificate, (int)err); | |
b86bc4cf | 3426 | } |
3427 | else | |
3428 | { | |
3429 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
3430 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3431 | "SecIdentitySearchCopyNext CFTypeID failure!"); | |
ef416fc2 | 3432 | else |
3433 | { | |
b86bc4cf | 3434 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, |
3435 | 1, &kCFTypeArrayCallBacks)) == NULL) | |
3436 | cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot create certificate array"); | |
ef416fc2 | 3437 | } |
3438 | ||
b86bc4cf | 3439 | CFRelease(identity); |
ef416fc2 | 3440 | } |
3441 | ||
b86bc4cf | 3442 | CFRelease(search); |
ef416fc2 | 3443 | } |
3444 | ||
b86bc4cf | 3445 | # if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY |
3446 | CFRelease(policy); | |
3447 | CFRelease(policy_search); | |
3448 | # endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */ | |
3449 | ||
3450 | return (certificates); | |
ef416fc2 | 3451 | } |
3452 | #endif /* HAVE_CDSASSL */ | |
3453 | ||
3454 | ||
3455 | /* | |
3456 | * 'get_file()' - Get a filename and state info. | |
3457 | */ | |
3458 | ||
3459 | static char * /* O - Real filename */ | |
3460 | get_file(cupsd_client_t *con, /* I - Client connection */ | |
3461 | struct stat *filestats, /* O - File information */ | |
3462 | char *filename, /* IO - Filename buffer */ | |
3463 | int len) /* I - Buffer length */ | |
3464 | { | |
3465 | int status; /* Status of filesystem calls */ | |
3466 | char *ptr; /* Pointer info filename */ | |
3467 | int plen; /* Remaining length after pointer */ | |
db1f069b | 3468 | char language[7]; /* Language subdirectory, if any */ |
ef416fc2 | 3469 | |
3470 | ||
3471 | /* | |
f7deaa1a | 3472 | * Figure out the real filename... |
ef416fc2 | 3473 | */ |
3474 | ||
db1f069b MS |
3475 | language[0] = '\0'; |
3476 | ||
ef416fc2 | 3477 | if (!strncmp(con->uri, "/ppd/", 5)) |
3478 | snprintf(filename, len, "%s%s", ServerRoot, con->uri); | |
f7deaa1a | 3479 | else if (!strncmp(con->uri, "/rss/", 5) && !strchr(con->uri + 5, '/')) |
3480 | snprintf(filename, len, "%s/rss/%s", CacheDir, con->uri + 5); | |
ef416fc2 | 3481 | else if (!strncmp(con->uri, "/admin/conf/", 12)) |
3482 | snprintf(filename, len, "%s%s", ServerRoot, con->uri + 11); | |
3483 | else if (!strncmp(con->uri, "/admin/log/", 11)) | |
3484 | { | |
2e4ff8af | 3485 | if (!strncmp(con->uri + 11, "access_log", 10) && AccessLog[0] == '/') |
ef416fc2 | 3486 | strlcpy(filename, AccessLog, len); |
2e4ff8af | 3487 | else if (!strncmp(con->uri + 11, "error_log", 9) && ErrorLog[0] == '/') |
ef416fc2 | 3488 | strlcpy(filename, ErrorLog, len); |
2e4ff8af | 3489 | else if (!strncmp(con->uri + 11, "page_log", 8) && PageLog[0] == '/') |
ef416fc2 | 3490 | strlcpy(filename, PageLog, len); |
3491 | else | |
3492 | return (NULL); | |
3493 | } | |
d6ae789d | 3494 | else if (con->language) |
db1f069b MS |
3495 | { |
3496 | snprintf(language, sizeof(language), "/%s", con->language->language); | |
3497 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
3498 | } | |
ef416fc2 | 3499 | else |
3500 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); | |
3501 | ||
3502 | if ((ptr = strchr(filename, '?')) != NULL) | |
3503 | *ptr = '\0'; | |
3504 | ||
3505 | /* | |
3506 | * Grab the status for this language; if there isn't a language-specific file | |
3507 | * then fallback to the default one... | |
3508 | */ | |
3509 | ||
db1f069b | 3510 | if ((status = stat(filename, filestats)) != 0 && language[0] && |
d6ae789d | 3511 | strncmp(con->uri, "/ppd/", 5) && |
3512 | strncmp(con->uri, "/admin/conf/", 12) && | |
3513 | strncmp(con->uri, "/admin/log/", 11)) | |
ef416fc2 | 3514 | { |
3515 | /* | |
d6ae789d | 3516 | * Drop the country code... |
ef416fc2 | 3517 | */ |
3518 | ||
db1f069b MS |
3519 | language[3] = '\0'; |
3520 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
d6ae789d | 3521 | |
3522 | if ((ptr = strchr(filename, '?')) != NULL) | |
3523 | *ptr = '\0'; | |
3524 | ||
3525 | if ((status = stat(filename, filestats)) != 0) | |
ef416fc2 | 3526 | { |
d6ae789d | 3527 | /* |
3528 | * Drop the language prefix and try the root directory... | |
3529 | */ | |
3530 | ||
db1f069b | 3531 | language[0] = '\0'; |
ef416fc2 | 3532 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); |
3533 | ||
3534 | if ((ptr = strchr(filename, '?')) != NULL) | |
3535 | *ptr = '\0'; | |
3536 | ||
3537 | status = stat(filename, filestats); | |
3538 | } | |
3539 | } | |
3540 | ||
3541 | /* | |
3542 | * If we're found a directory, get the index.html file instead... | |
3543 | */ | |
3544 | ||
3545 | if (!status && S_ISDIR(filestats->st_mode)) | |
3546 | { | |
db1f069b MS |
3547 | /* |
3548 | * Make sure the URI ends with a slash... | |
3549 | */ | |
ef416fc2 | 3550 | |
db1f069b MS |
3551 | if (con->uri[strlen(con->uri) - 1] != '/') |
3552 | strlcat(con->uri, "/", sizeof(con->uri)); | |
ef416fc2 | 3553 | |
db1f069b MS |
3554 | /* |
3555 | * Find the directory index file, trying every language... | |
3556 | */ | |
ef416fc2 | 3557 | |
db1f069b | 3558 | do |
ef416fc2 | 3559 | { |
db1f069b MS |
3560 | if (status && language[0]) |
3561 | { | |
3562 | /* | |
3563 | * Try a different language subset... | |
3564 | */ | |
3565 | ||
3566 | if (language[3]) | |
3567 | language[0] = '\0'; /* Strip country code */ | |
3568 | else | |
3569 | language[0] = '\0'; /* Strip language */ | |
3570 | } | |
3571 | ||
3572 | /* | |
3573 | * Look for the index file... | |
3574 | */ | |
3575 | ||
3576 | snprintf(filename, len, "%s%s%s", DocumentRoot, language, con->uri); | |
3577 | ||
3578 | if ((ptr = strchr(filename, '?')) != NULL) | |
3579 | *ptr = '\0'; | |
3580 | ||
3581 | ptr = filename + strlen(filename); | |
3582 | plen = len - (ptr - filename); | |
3583 | ||
3584 | strlcpy(ptr, "index.html", plen); | |
ef416fc2 | 3585 | status = stat(filename, filestats); |
db1f069b MS |
3586 | |
3587 | #ifdef HAVE_JAVA | |
3588 | if (status) | |
3589 | { | |
3590 | strlcpy(ptr, "index.class", plen); | |
3591 | status = stat(filename, filestats); | |
3592 | } | |
ef416fc2 | 3593 | #endif /* HAVE_JAVA */ |
3594 | ||
3595 | #ifdef HAVE_PERL | |
db1f069b MS |
3596 | if (status) |
3597 | { | |
3598 | strlcpy(ptr, "index.pl", plen); | |
3599 | status = stat(filename, filestats); | |
3600 | } | |
ef416fc2 | 3601 | #endif /* HAVE_PERL */ |
3602 | ||
3603 | #ifdef HAVE_PHP | |
db1f069b MS |
3604 | if (status) |
3605 | { | |
3606 | strlcpy(ptr, "index.php", plen); | |
3607 | status = stat(filename, filestats); | |
3608 | } | |
ef416fc2 | 3609 | #endif /* HAVE_PHP */ |
3610 | ||
3611 | #ifdef HAVE_PYTHON | |
db1f069b MS |
3612 | if (status) |
3613 | { | |
3614 | strlcpy(ptr, "index.pyc", plen); | |
3615 | status = stat(filename, filestats); | |
3616 | } | |
ef416fc2 | 3617 | |
db1f069b MS |
3618 | if (status) |
3619 | { | |
3620 | strlcpy(ptr, "index.py", plen); | |
3621 | status = stat(filename, filestats); | |
3622 | } | |
ef416fc2 | 3623 | #endif /* HAVE_PYTHON */ |
db1f069b MS |
3624 | |
3625 | } | |
3626 | while (status && language[0]); | |
ef416fc2 | 3627 | } |
3628 | ||
3629 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "get_file: %d filename=%s size=%d", | |
3630 | con->http.fd, filename, | |
3631 | status ? -1 : (int)filestats->st_size); | |
3632 | ||
3633 | if (!status) | |
3634 | con->http.data_remaining = (int)filestats->st_size; | |
3635 | ||
3636 | if (status) | |
3637 | return (NULL); | |
3638 | else | |
3639 | return (filename); | |
3640 | } | |
3641 | ||
3642 | ||
3643 | /* | |
3644 | * 'install_conf_file()' - Install a configuration file. | |
3645 | */ | |
3646 | ||
3647 | static http_status_t /* O - Status */ | |
3648 | install_conf_file(cupsd_client_t *con) /* I - Connection */ | |
3649 | { | |
3650 | cups_file_t *in, /* Input file */ | |
3651 | *out; /* Output file */ | |
3652 | char buffer[1024]; /* Copy buffer */ | |
3653 | int bytes; /* Number of bytes */ | |
3654 | char conffile[1024], /* Configuration filename */ | |
3655 | newfile[1024], /* New config filename */ | |
3656 | oldfile[1024]; /* Old config filename */ | |
3657 | struct stat confinfo; /* Config file info */ | |
3658 | ||
3659 | ||
3660 | /* | |
3661 | * First construct the filenames... | |
3662 | */ | |
3663 | ||
3664 | snprintf(conffile, sizeof(conffile), "%s%s", ServerRoot, con->uri + 11); | |
3665 | snprintf(newfile, sizeof(newfile), "%s%s.N", ServerRoot, con->uri + 11); | |
3666 | snprintf(oldfile, sizeof(oldfile), "%s%s.O", ServerRoot, con->uri + 11); | |
3667 | ||
3668 | cupsdLogMessage(CUPSD_LOG_INFO, "Installing config file \"%s\"...", conffile); | |
3669 | ||
3670 | /* | |
3671 | * Get the owner, group, and permissions of the configuration file. | |
3672 | * If it doesn't exist, assign it to the User and Group in the | |
3673 | * cupsd.conf file with mode 0640 permissions. | |
3674 | */ | |
3675 | ||
3676 | if (stat(conffile, &confinfo)) | |
3677 | { | |
3678 | confinfo.st_uid = User; | |
3679 | confinfo.st_gid = Group; | |
3680 | confinfo.st_mode = ConfigFilePerm; | |
3681 | } | |
3682 | ||
3683 | /* | |
3684 | * Open the request file and new config file... | |
3685 | */ | |
3686 | ||
3687 | if ((in = cupsFileOpen(con->filename, "rb")) == NULL) | |
3688 | { | |
3689 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open request file \"%s\" - %s", | |
3690 | con->filename, strerror(errno)); | |
3691 | return (HTTP_SERVER_ERROR); | |
3692 | } | |
3693 | ||
3694 | if ((out = cupsFileOpen(newfile, "wb")) == NULL) | |
3695 | { | |
3696 | cupsFileClose(in); | |
3697 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open config file \"%s\" - %s", | |
3698 | newfile, strerror(errno)); | |
3699 | return (HTTP_SERVER_ERROR); | |
3700 | } | |
3701 | ||
3702 | fchmod(cupsFileNumber(out), confinfo.st_mode); | |
3703 | fchown(cupsFileNumber(out), confinfo.st_uid, confinfo.st_gid); | |
3704 | ||
3705 | /* | |
3706 | * Copy from the request to the new config file... | |
3707 | */ | |
3708 | ||
3709 | while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0) | |
3710 | if (cupsFileWrite(out, buffer, bytes) < bytes) | |
3711 | { | |
3712 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3713 | "Unable to copy to config file \"%s\" - %s", | |
3714 | newfile, strerror(errno)); | |
3715 | ||
3716 | cupsFileClose(in); | |
3717 | cupsFileClose(out); | |
3718 | unlink(newfile); | |
3719 | ||
3720 | return (HTTP_SERVER_ERROR); | |
3721 | } | |
3722 | ||
3723 | /* | |
3724 | * Close the files... | |
3725 | */ | |
3726 | ||
3727 | cupsFileClose(in); | |
3728 | if (cupsFileClose(out)) | |
3729 | { | |
3730 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3731 | "Error file closing config file \"%s\" - %s", | |
3732 | newfile, strerror(errno)); | |
3733 | ||
3734 | unlink(newfile); | |
3735 | ||
3736 | return (HTTP_SERVER_ERROR); | |
3737 | } | |
3738 | ||
3739 | /* | |
3740 | * Remove the request file... | |
3741 | */ | |
3742 | ||
3743 | unlink(con->filename); | |
3744 | cupsdClearString(&con->filename); | |
3745 | ||
3746 | /* | |
3747 | * Unlink the old backup, rename the current config file to the backup | |
3748 | * filename, and rename the new config file to the config file name... | |
3749 | */ | |
3750 | ||
3751 | if (unlink(oldfile)) | |
3752 | if (errno != ENOENT) | |
3753 | { | |
3754 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3755 | "Unable to remove backup config file \"%s\" - %s", | |
3756 | oldfile, strerror(errno)); | |
3757 | ||
3758 | unlink(newfile); | |
3759 | ||
3760 | return (HTTP_SERVER_ERROR); | |
3761 | } | |
3762 | ||
3763 | if (rename(conffile, oldfile)) | |
3764 | if (errno != ENOENT) | |
3765 | { | |
3766 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3767 | "Unable to rename old config file \"%s\" - %s", | |
3768 | conffile, strerror(errno)); | |
3769 | ||
3770 | unlink(newfile); | |
3771 | ||
3772 | return (HTTP_SERVER_ERROR); | |
3773 | } | |
3774 | ||
3775 | if (rename(newfile, conffile)) | |
3776 | { | |
3777 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3778 | "Unable to rename new config file \"%s\" - %s", | |
3779 | newfile, strerror(errno)); | |
3780 | ||
3781 | rename(oldfile, conffile); | |
3782 | unlink(newfile); | |
3783 | ||
3784 | return (HTTP_SERVER_ERROR); | |
3785 | } | |
3786 | ||
3787 | /* | |
3788 | * If the cupsd.conf file was updated, set the NeedReload flag... | |
3789 | */ | |
3790 | ||
3791 | if (!strcmp(con->uri, "/admin/conf/cupsd.conf")) | |
3792 | NeedReload = RELOAD_CUPSD; | |
3793 | else | |
3794 | NeedReload = RELOAD_ALL; | |
3795 | ||
3796 | ReloadTime = time(NULL); | |
3797 | ||
3798 | /* | |
3799 | * Return that the file was created successfully... | |
3800 | */ | |
3801 | ||
3802 | return (HTTP_CREATED); | |
3803 | } | |
3804 | ||
3805 | ||
e1d6a774 | 3806 | /* |
3807 | * 'is_cgi()' - Is the resource a CGI script/program? | |
3808 | */ | |
3809 | ||
3810 | static int /* O - 1 = CGI, 0 = file */ | |
3811 | is_cgi(cupsd_client_t *con, /* I - Client connection */ | |
3812 | const char *filename, /* I - Real filename */ | |
3813 | struct stat *filestats, /* I - File information */ | |
3814 | mime_type_t *type) /* I - MIME type */ | |
3815 | { | |
3816 | const char *options; /* Options on URL */ | |
3817 | ||
3818 | ||
3819 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
75bd9771 | 3820 | "is_cgi(con=%p, filename=\"%s\", filestats=%p, type=%s/%s)", |
e1d6a774 | 3821 | con, filename, filestats, type ? type->super : "unknown", |
3822 | type ? type->type : "unknown"); | |
3823 | ||
3824 | /* | |
3825 | * Get the options, if any... | |
3826 | */ | |
3827 | ||
3828 | if ((options = strchr(con->uri, '?')) != NULL) | |
a0f6818e MS |
3829 | { |
3830 | options ++; | |
3831 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", options); | |
3832 | } | |
b86bc4cf | 3833 | |
e1d6a774 | 3834 | /* |
3835 | * Check for known types... | |
3836 | */ | |
3837 | ||
3838 | if (!type || strcasecmp(type->super, "application")) | |
3839 | { | |
3840 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0..."); | |
3841 | return (0); | |
3842 | } | |
3843 | ||
3844 | if (!strcasecmp(type->type, "x-httpd-cgi") && | |
3845 | (filestats->st_mode & 0111)) | |
3846 | { | |
3847 | /* | |
3848 | * "application/x-httpd-cgi" is a CGI script. | |
3849 | */ | |
3850 | ||
3851 | cupsdSetString(&con->command, filename); | |
3852 | ||
a0f6818e MS |
3853 | if (options) |
3854 | cupsdSetStringf(&con->options, " %s", options); | |
e1d6a774 | 3855 | |
3856 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3857 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3858 | con->command, con->options); | |
3859 | ||
3860 | return (1); | |
3861 | } | |
3862 | #ifdef HAVE_JAVA | |
3863 | else if (!strcasecmp(type->type, "x-httpd-java")) | |
3864 | { | |
3865 | /* | |
3866 | * "application/x-httpd-java" is a Java servlet. | |
3867 | */ | |
3868 | ||
3869 | cupsdSetString(&con->command, CUPS_JAVA); | |
3870 | ||
3871 | if (options) | |
b94498cf | 3872 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3873 | else |
b94498cf | 3874 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3875 | |
3876 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3877 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3878 | con->command, con->options); | |
3879 | ||
3880 | return (1); | |
3881 | } | |
3882 | #endif /* HAVE_JAVA */ | |
3883 | #ifdef HAVE_PERL | |
3884 | else if (!strcasecmp(type->type, "x-httpd-perl")) | |
3885 | { | |
3886 | /* | |
3887 | * "application/x-httpd-perl" is a Perl page. | |
3888 | */ | |
3889 | ||
3890 | cupsdSetString(&con->command, CUPS_PERL); | |
3891 | ||
3892 | if (options) | |
b94498cf | 3893 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3894 | else |
b94498cf | 3895 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3896 | |
3897 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3898 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3899 | con->command, con->options); | |
3900 | ||
3901 | return (1); | |
3902 | } | |
3903 | #endif /* HAVE_PERL */ | |
3904 | #ifdef HAVE_PHP | |
3905 | else if (!strcasecmp(type->type, "x-httpd-php")) | |
3906 | { | |
3907 | /* | |
3908 | * "application/x-httpd-php" is a PHP page. | |
3909 | */ | |
3910 | ||
3911 | cupsdSetString(&con->command, CUPS_PHP); | |
3912 | ||
3913 | if (options) | |
b94498cf | 3914 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3915 | else |
b94498cf | 3916 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3917 | |
3918 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3919 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3920 | con->command, con->options); | |
3921 | ||
3922 | return (1); | |
3923 | } | |
3924 | #endif /* HAVE_PHP */ | |
3925 | #ifdef HAVE_PYTHON | |
3926 | else if (!strcasecmp(type->type, "x-httpd-python")) | |
3927 | { | |
3928 | /* | |
3929 | * "application/x-httpd-python" is a Python page. | |
3930 | */ | |
3931 | ||
3932 | cupsdSetString(&con->command, CUPS_PYTHON); | |
3933 | ||
3934 | if (options) | |
b94498cf | 3935 | cupsdSetStringf(&con->options, " %s %s", filename, options); |
e1d6a774 | 3936 | else |
b94498cf | 3937 | cupsdSetStringf(&con->options, " %s", filename); |
e1d6a774 | 3938 | |
3939 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3940 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3941 | con->command, con->options); | |
3942 | ||
3943 | return (1); | |
3944 | } | |
3945 | #endif /* HAVE_PYTHON */ | |
3946 | ||
3947 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0..."); | |
3948 | ||
3949 | return (0); | |
3950 | } | |
3951 | ||
3952 | ||
ef416fc2 | 3953 | /* |
3954 | * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. ".."). | |
3955 | */ | |
3956 | ||
3957 | static int /* O - 0 if relative, 1 if absolute */ | |
3958 | is_path_absolute(const char *path) /* I - Input path */ | |
3959 | { | |
3960 | /* | |
3961 | * Check for a leading slash... | |
3962 | */ | |
3963 | ||
3964 | if (path[0] != '/') | |
3965 | return (0); | |
3966 | ||
3967 | /* | |
3968 | * Check for "/.." in the path... | |
3969 | */ | |
3970 | ||
3971 | while ((path = strstr(path, "/..")) != NULL) | |
3972 | { | |
3973 | if (!path[3] || path[3] == '/') | |
3974 | return (0); | |
3975 | ||
3976 | path ++; | |
3977 | } | |
3978 | ||
3979 | /* | |
3980 | * If we haven't found any relative paths, return 1 indicating an | |
3981 | * absolute path... | |
3982 | */ | |
3983 | ||
3984 | return (1); | |
3985 | } | |
3986 | ||
3987 | ||
8ca02f3c | 3988 | #ifdef HAVE_SSL |
4744bd90 | 3989 | /* |
3990 | * 'make_certificate()' - Make a self-signed SSL/TLS certificate. | |
3991 | */ | |
3992 | ||
8ca02f3c | 3993 | static int /* O - 1 on success, 0 on failure */ |
b86bc4cf | 3994 | make_certificate(cupsd_client_t *con) /* I - Client connection */ |
4744bd90 | 3995 | { |
8ca02f3c | 3996 | #if defined(HAVE_LIBSSL) && defined(HAVE_WAITPID) |
d09495fa | 3997 | int pid, /* Process ID of command */ |
3998 | status; /* Status of command */ | |
3999 | char command[1024], /* Command */ | |
f7deaa1a | 4000 | *argv[12], /* Command-line arguments */ |
d09495fa | 4001 | *envp[MAX_ENV + 1], /* Environment variables */ |
4002 | home[1024], /* HOME environment variable */ | |
4003 | infofile[1024], /* Type-in information for cert */ | |
4004 | seedfile[1024]; /* Random number seed file */ | |
4005 | int envc, /* Number of environment variables */ | |
4006 | bytes; /* Bytes written */ | |
4007 | cups_file_t *fp; /* Seed/info file */ | |
4008 | int infofd; /* Info file descriptor */ | |
8ca02f3c | 4009 | |
4010 | ||
4011 | /* | |
d09495fa | 4012 | * Run the "openssl" command to seed the random number generator and |
4013 | * generate a self-signed certificate that is good for 10 years: | |
4014 | * | |
4015 | * openssl rand -rand seedfile 1 | |
8ca02f3c | 4016 | * |
4017 | * openssl req -new -x509 -keyout ServerKey \ | |
4018 | * -out ServerCertificate -days 3650 -nodes | |
d09495fa | 4019 | * |
4020 | * The seeding step is crucial in ensuring that the openssl command | |
4021 | * does not block on systems without sufficient entropy... | |
8ca02f3c | 4022 | */ |
4023 | ||
4024 | if (!cupsFileFind("openssl", getenv("PATH"), 1, command, sizeof(command))) | |
4025 | { | |
4026 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4027 | "No SSL certificate and openssl command not found!"); | |
4028 | return (0); | |
4029 | } | |
4030 | ||
d09495fa | 4031 | if (access("/dev/urandom", 0)) |
4032 | { | |
4033 | /* | |
4034 | * If the system doesn't provide /dev/urandom, then any random source | |
4035 | * will probably be blocking-style, so generate some random data to | |
4036 | * use as a seed for the certificate. Note that we have already | |
4037 | * seeded the random number generator in cupsdInitCerts()... | |
4038 | */ | |
4039 | ||
4040 | cupsdLogMessage(CUPSD_LOG_INFO, | |
4041 | "Seeding the random number generator..."); | |
4042 | ||
4043 | snprintf(home, sizeof(home), "HOME=%s", TempDir); | |
4044 | ||
4045 | /* | |
4046 | * Write the seed file... | |
4047 | */ | |
4048 | ||
4049 | if ((fp = cupsTempFile2(seedfile, sizeof(seedfile))) == NULL) | |
4050 | { | |
4051 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create seed file %s - %s", | |
4052 | seedfile, strerror(errno)); | |
4053 | return (0); | |
4054 | } | |
4055 | ||
4056 | for (bytes = 0; bytes < 262144; bytes ++) | |
4057 | cupsFilePutChar(fp, random()); | |
4058 | ||
4059 | cupsFileClose(fp); | |
4060 | ||
4061 | /* | |
4062 | * Run the openssl command to seed its random number generator... | |
4063 | */ | |
4064 | ||
4065 | argv[0] = "openssl"; | |
4066 | argv[1] = "rand"; | |
4067 | argv[2] = "-rand"; | |
4068 | argv[3] = seedfile; | |
4069 | argv[4] = "1"; | |
4070 | argv[5] = NULL; | |
4071 | ||
4072 | envc = cupsdLoadEnv(envp, MAX_ENV); | |
4073 | envp[envc++] = home; | |
4074 | envp[envc] = NULL; | |
4075 | ||
a4924f6c MS |
4076 | if (!cupsdStartProcess(command, argv, envp, -1, -1, -1, -1, -1, 1, NULL, |
4077 | &pid)) | |
d09495fa | 4078 | { |
4079 | unlink(seedfile); | |
4080 | return (0); | |
4081 | } | |
4082 | ||
4083 | while (waitpid(pid, &status, 0) < 0) | |
4084 | if (errno != EINTR) | |
4085 | { | |
4086 | status = 1; | |
4087 | break; | |
4088 | } | |
4089 | ||
4090 | cupsdFinishProcess(pid, command, sizeof(command)); | |
4091 | ||
4092 | /* | |
4093 | * Remove the seed file, as it is no longer needed... | |
4094 | */ | |
4095 | ||
4096 | unlink(seedfile); | |
4097 | ||
4098 | if (status) | |
4099 | { | |
4100 | if (WIFEXITED(status)) | |
4101 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4102 | "Unable to seed random number generator - " | |
4103 | "the openssl command stopped with status %d!", | |
4104 | WEXITSTATUS(status)); | |
4105 | else | |
4106 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4107 | "Unable to seed random number generator - " | |
4108 | "the openssl command crashed on signal %d!", | |
4109 | WTERMSIG(status)); | |
4110 | ||
4111 | return (0); | |
4112 | } | |
4113 | } | |
4114 | ||
4115 | /* | |
4116 | * Create a file with the certificate information fields... | |
4117 | * | |
4118 | * Note: This assumes that the default questions are asked by the openssl | |
4119 | * command... | |
4120 | */ | |
4121 | ||
4122 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
4123 | { | |
4124 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4125 | "Unable to create certificate information file %s - %s", | |
4126 | infofile, strerror(errno)); | |
4127 | return (0); | |
4128 | } | |
4129 | ||
4130 | cupsFilePrintf(fp, ".\n.\n.\n%s\n.\n%s\n%s\n", | |
4131 | ServerName, ServerName, ServerAdmin); | |
4132 | cupsFileClose(fp); | |
4133 | ||
8ca02f3c | 4134 | cupsdLogMessage(CUPSD_LOG_INFO, |
4135 | "Generating SSL server key and certificate..."); | |
4136 | ||
4137 | argv[0] = "openssl"; | |
4138 | argv[1] = "req"; | |
4139 | argv[2] = "-new"; | |
4140 | argv[3] = "-x509"; | |
4141 | argv[4] = "-keyout"; | |
4142 | argv[5] = ServerKey; | |
4143 | argv[6] = "-out"; | |
4144 | argv[7] = ServerCertificate; | |
4145 | argv[8] = "-days"; | |
4146 | argv[9] = "3650"; | |
4147 | argv[10] = "-nodes"; | |
4148 | argv[11] = NULL; | |
4149 | ||
4150 | cupsdLoadEnv(envp, MAX_ENV); | |
4151 | ||
d09495fa | 4152 | infofd = open(infofile, O_RDONLY); |
4153 | ||
a4924f6c MS |
4154 | if (!cupsdStartProcess(command, argv, envp, infofd, -1, -1, -1, -1, 1, NULL, |
4155 | &pid)) | |
d09495fa | 4156 | { |
4157 | close(infofd); | |
4158 | unlink(infofile); | |
8ca02f3c | 4159 | return (0); |
d09495fa | 4160 | } |
4161 | ||
4162 | close(infofd); | |
4163 | unlink(infofile); | |
8ca02f3c | 4164 | |
4165 | while (waitpid(pid, &status, 0) < 0) | |
4166 | if (errno != EINTR) | |
4167 | { | |
4168 | status = 1; | |
4169 | break; | |
4170 | } | |
4171 | ||
4172 | cupsdFinishProcess(pid, command, sizeof(command)); | |
4173 | ||
4174 | if (status) | |
4175 | { | |
4176 | if (WIFEXITED(status)) | |
4177 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4178 | "Unable to create SSL server key and certificate - " | |
4179 | "the openssl command stopped with status %d!", | |
4180 | WEXITSTATUS(status)); | |
4181 | else | |
4182 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4183 | "Unable to create SSL server key and certificate - " | |
4184 | "the openssl command crashed on signal %d!", | |
4185 | WTERMSIG(status)); | |
4186 | } | |
4187 | else | |
4188 | { | |
4189 | cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...", | |
4190 | ServerKey); | |
4191 | cupsdLogMessage(CUPSD_LOG_INFO, | |
4192 | "Created SSL server certificate file \"%s\"...", | |
4193 | ServerCertificate); | |
4194 | } | |
4195 | ||
4196 | return (!status); | |
4197 | ||
4198 | #elif defined(HAVE_GNUTLS) | |
4744bd90 | 4199 | gnutls_x509_crt crt; /* Self-signed certificate */ |
4200 | gnutls_x509_privkey key; /* Encryption key */ | |
4201 | cups_lang_t *language; /* Default language info */ | |
4202 | cups_file_t *fp; /* Key/cert file */ | |
4203 | unsigned char buffer[8192]; /* Buffer for x509 data */ | |
4204 | size_t bytes; /* Number of bytes of data */ | |
4205 | unsigned char serial[4]; /* Serial number buffer */ | |
4206 | time_t curtime; /* Current time */ | |
4207 | int result; /* Result of GNU TLS calls */ | |
4208 | ||
4209 | ||
4210 | /* | |
4211 | * Create the encryption key... | |
4212 | */ | |
4213 | ||
8ca02f3c | 4214 | cupsdLogMessage(CUPSD_LOG_INFO, "Generating SSL server key..."); |
4744bd90 | 4215 | |
4216 | gnutls_x509_privkey_init(&key); | |
4217 | gnutls_x509_privkey_generate(key, GNUTLS_PK_RSA, 2048, 0); | |
4218 | ||
4219 | /* | |
4220 | * Save it... | |
4221 | */ | |
4222 | ||
4223 | bytes = sizeof(buffer); | |
4224 | ||
4225 | if ((result = gnutls_x509_privkey_export(key, GNUTLS_X509_FMT_PEM, | |
4226 | buffer, &bytes)) < 0) | |
4227 | { | |
8ca02f3c | 4228 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to export SSL server key - %s", |
4744bd90 | 4229 | gnutls_strerror(result)); |
4230 | gnutls_x509_privkey_deinit(key); | |
8ca02f3c | 4231 | return (0); |
4744bd90 | 4232 | } |
4233 | else if ((fp = cupsFileOpen(ServerKey, "w")) != NULL) | |
4234 | { | |
4235 | cupsFileWrite(fp, (char *)buffer, bytes); | |
4236 | cupsFileClose(fp); | |
4237 | ||
8ca02f3c | 4238 | cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...", |
4744bd90 | 4239 | ServerKey); |
4240 | } | |
4241 | else | |
4242 | { | |
4243 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
8ca02f3c | 4244 | "Unable to create SSL server key file \"%s\" - %s", |
4744bd90 | 4245 | ServerKey, strerror(errno)); |
4246 | gnutls_x509_privkey_deinit(key); | |
8ca02f3c | 4247 | return (0); |
4744bd90 | 4248 | } |
4249 | ||
4250 | /* | |
4251 | * Create the self-signed certificate... | |
4252 | */ | |
4253 | ||
8ca02f3c | 4254 | cupsdLogMessage(CUPSD_LOG_INFO, "Generating self-signed SSL certificate..."); |
4744bd90 | 4255 | |
4256 | language = cupsLangDefault(); | |
4257 | curtime = time(NULL); | |
4258 | serial[0] = curtime >> 24; | |
4259 | serial[1] = curtime >> 16; | |
4260 | serial[2] = curtime >> 8; | |
4261 | serial[3] = curtime; | |
4262 | ||
4263 | gnutls_x509_crt_init(&crt); | |
4264 | if (strlen(language->language) == 5) | |
4265 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0, | |
4266 | language->language + 3, 2); | |
4267 | else | |
4268 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0, | |
4269 | "US", 2); | |
4270 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COMMON_NAME, 0, | |
4271 | ServerName, strlen(ServerName)); | |
4272 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATION_NAME, 0, | |
4273 | ServerName, strlen(ServerName)); | |
4274 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME, | |
4275 | 0, "Unknown", 7); | |
4276 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME, 0, | |
4277 | "Unknown", 7); | |
4278 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_LOCALITY_NAME, 0, | |
4279 | "Unknown", 7); | |
4280 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_PKCS9_EMAIL, 0, | |
4281 | ServerAdmin, strlen(ServerAdmin)); | |
4282 | gnutls_x509_crt_set_key(crt, key); | |
4283 | gnutls_x509_crt_set_serial(crt, serial, sizeof(serial)); | |
4284 | gnutls_x509_crt_set_activation_time(crt, curtime); | |
4285 | gnutls_x509_crt_set_expiration_time(crt, curtime + 10 * 365 * 86400); | |
4286 | gnutls_x509_crt_set_ca_status(crt, 0); | |
4287 | gnutls_x509_crt_set_subject_alternative_name(crt, GNUTLS_SAN_DNSNAME, | |
4288 | ServerName); | |
4289 | gnutls_x509_crt_set_key_purpose_oid(crt, GNUTLS_KP_TLS_WWW_SERVER, 0); | |
4290 | gnutls_x509_crt_set_key_usage(crt, GNUTLS_KEY_KEY_ENCIPHERMENT); | |
4291 | gnutls_x509_crt_set_version(crt, 3); | |
4292 | ||
4293 | bytes = sizeof(buffer); | |
4294 | if (gnutls_x509_crt_get_key_id(crt, 0, buffer, &bytes) >= 0) | |
4295 | gnutls_x509_crt_set_subject_key_id(crt, buffer, bytes); | |
4296 | ||
4297 | gnutls_x509_crt_sign(crt, crt, key); | |
4298 | ||
4299 | /* | |
4300 | * Save it... | |
4301 | */ | |
4302 | ||
4303 | bytes = sizeof(buffer); | |
4304 | if ((result = gnutls_x509_crt_export(crt, GNUTLS_X509_FMT_PEM, | |
4305 | buffer, &bytes)) < 0) | |
4306 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
8ca02f3c | 4307 | "Unable to export SSL server certificate - %s", |
4744bd90 | 4308 | gnutls_strerror(result)); |
4309 | else if ((fp = cupsFileOpen(ServerCertificate, "w")) != NULL) | |
4310 | { | |
4311 | cupsFileWrite(fp, (char *)buffer, bytes); | |
4312 | cupsFileClose(fp); | |
4313 | ||
4314 | cupsdLogMessage(CUPSD_LOG_INFO, | |
8ca02f3c | 4315 | "Created SSL server certificate file \"%s\"...", |
4744bd90 | 4316 | ServerCertificate); |
4317 | } | |
4318 | else | |
4319 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
8ca02f3c | 4320 | "Unable to create SSL server certificate file \"%s\" - %s", |
4744bd90 | 4321 | ServerCertificate, strerror(errno)); |
4322 | ||
4323 | /* | |
4324 | * Cleanup... | |
4325 | */ | |
4326 | ||
4327 | gnutls_x509_crt_deinit(crt); | |
4328 | gnutls_x509_privkey_deinit(key); | |
8ca02f3c | 4329 | |
4330 | return (1); | |
4331 | ||
4332 | #elif defined(HAVE_CDSASSL) && defined(HAVE_WAITPID) | |
b86bc4cf | 4333 | int pid, /* Process ID of command */ |
4334 | status; /* Status of command */ | |
4335 | char command[1024], /* Command */ | |
4336 | *argv[4], /* Command-line arguments */ | |
4337 | *envp[MAX_ENV + 1], /* Environment variables */ | |
4338 | keychain[1024], /* Keychain argument */ | |
4339 | infofile[1024]; /* Type-in information for cert */ | |
4340 | cups_file_t *fp; /* Seed/info file */ | |
4341 | int infofd; /* Info file descriptor */ | |
8ca02f3c | 4342 | |
4343 | ||
4344 | /* | |
b86bc4cf | 4345 | * Run the "certtool" command to generate a self-signed certificate... |
8ca02f3c | 4346 | */ |
4347 | ||
4348 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
4349 | { | |
4350 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4351 | "No SSL certificate and certtool command not found!"); | |
4352 | return (0); | |
4353 | } | |
4354 | ||
b86bc4cf | 4355 | /* |
4356 | * Create a file with the certificate information fields... | |
4357 | * | |
4358 | * Note: This assumes that the default questions are asked by the certtool | |
4359 | * command... | |
4360 | */ | |
4361 | ||
4362 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
4363 | { | |
4364 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4365 | "Unable to create certificate information file %s - %s", | |
4366 | infofile, strerror(errno)); | |
4367 | return (0); | |
4368 | } | |
4369 | ||
4370 | cupsFilePrintf(fp, "%s\nr\n\ny\nb\ns\ny\n%s\n\n\n\n\n%s\ny\n", | |
4371 | con->servername, con->servername, ServerAdmin); | |
4372 | cupsFileClose(fp); | |
4373 | ||
8ca02f3c | 4374 | cupsdLogMessage(CUPSD_LOG_INFO, |
4375 | "Generating SSL server key and certificate..."); | |
4376 | ||
4377 | snprintf(keychain, sizeof(keychain), "k=%s", ServerCertificate); | |
4378 | ||
4379 | argv[0] = "certtool"; | |
4380 | argv[1] = "c"; | |
b86bc4cf | 4381 | argv[2] = keychain; |
4382 | argv[3] = NULL; | |
8ca02f3c | 4383 | |
4384 | cupsdLoadEnv(envp, MAX_ENV); | |
4385 | ||
b86bc4cf | 4386 | infofd = open(infofile, O_RDONLY); |
4387 | ||
a4924f6c MS |
4388 | if (!cupsdStartProcess(command, argv, envp, infofd, -1, -1, -1, -1, 1, NULL, |
4389 | &pid)) | |
b86bc4cf | 4390 | { |
4391 | close(infofd); | |
4392 | unlink(infofile); | |
8ca02f3c | 4393 | return (0); |
b86bc4cf | 4394 | } |
4395 | ||
4396 | close(infofd); | |
4397 | unlink(infofile); | |
8ca02f3c | 4398 | |
4399 | while (waitpid(pid, &status, 0) < 0) | |
4400 | if (errno != EINTR) | |
4401 | { | |
4402 | status = 1; | |
4403 | break; | |
4404 | } | |
4405 | ||
4406 | cupsdFinishProcess(pid, command, sizeof(command)); | |
4407 | ||
4408 | if (status) | |
4409 | { | |
4410 | if (WIFEXITED(status)) | |
4411 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4412 | "Unable to create SSL server key and certificate - " | |
4413 | "the certtool command stopped with status %d!", | |
4414 | WEXITSTATUS(status)); | |
4415 | else | |
4416 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4417 | "Unable to create SSL server key and certificate - " | |
4418 | "the certtool command crashed on signal %d!", | |
4419 | WTERMSIG(status)); | |
4420 | } | |
4421 | else | |
4422 | { | |
4423 | cupsdLogMessage(CUPSD_LOG_INFO, | |
4424 | "Created SSL server certificate file \"%s\"...", | |
4425 | ServerCertificate); | |
4426 | } | |
4427 | ||
4428 | return (!status); | |
4429 | ||
4430 | #else | |
4431 | return (0); | |
4432 | #endif /* HAVE_LIBSSL && HAVE_WAITPID */ | |
4744bd90 | 4433 | } |
8ca02f3c | 4434 | #endif /* HAVE_SSL */ |
4744bd90 | 4435 | |
4436 | ||
ef416fc2 | 4437 | /* |
4438 | * 'pipe_command()' - Pipe the output of a command to the remote client. | |
4439 | */ | |
4440 | ||
4441 | static int /* O - Process ID */ | |
4442 | pipe_command(cupsd_client_t *con, /* I - Client connection */ | |
4443 | int infile, /* I - Standard input for command */ | |
4444 | int *outfile, /* O - Standard output for command */ | |
4445 | char *command, /* I - Command to run */ | |
4446 | char *options, /* I - Options for command */ | |
4447 | int root) /* I - Run as root? */ | |
4448 | { | |
4449 | int i; /* Looping var */ | |
4450 | int pid; /* Process ID */ | |
b423cd4c | 4451 | char *commptr, /* Command string pointer */ |
4452 | commch; /* Command string character */ | |
ef416fc2 | 4453 | char *uriptr; /* URI string pointer */ |
4454 | int fds[2]; /* Pipe FDs */ | |
4455 | int argc; /* Number of arguments */ | |
4456 | int envc; /* Number of environment variables */ | |
4457 | char argbuf[10240], /* Argument buffer */ | |
4458 | *argv[100], /* Argument strings */ | |
b94498cf | 4459 | *envp[MAX_ENV + 20]; /* Environment variables */ |
5bd77a73 | 4460 | char auth_type[256], /* CUPSD_AUTH_TYPE environment variable */ |
b94498cf | 4461 | content_length[1024], /* CONTENT_LENGTH environment variable */ |
ef416fc2 | 4462 | content_type[1024], /* CONTENT_TYPE environment variable */ |
4463 | http_cookie[32768], /* HTTP_COOKIE environment variable */ | |
f7deaa1a | 4464 | http_referer[1024], /* HTTP_REFERER environment variable */ |
ef416fc2 | 4465 | http_user_agent[1024], /* HTTP_USER_AGENT environment variable */ |
4466 | lang[1024], /* LANG environment variable */ | |
b423cd4c | 4467 | path_info[1024], /* PATH_INFO environment variable */ |
ef416fc2 | 4468 | remote_addr[1024], /* REMOTE_ADDR environment variable */ |
4469 | remote_host[1024], /* REMOTE_HOST environment variable */ | |
4470 | remote_user[1024], /* REMOTE_USER environment variable */ | |
b94498cf | 4471 | script_filename[1024], /* SCRIPT_FILENAME environment variable */ |
ef416fc2 | 4472 | script_name[1024], /* SCRIPT_NAME environment variable */ |
4473 | server_name[1024], /* SERVER_NAME environment variable */ | |
4474 | server_port[1024]; /* SERVER_PORT environment variable */ | |
7dfedb92 | 4475 | ipp_attribute_t *attr; /* attributes-natural-language attribute */ |
5bd77a73 MS |
4476 | #ifdef HAVE_GSSAPI |
4477 | krb5_ccache ccache = NULL; /* Kerberos credentials */ | |
e6013cfa | 4478 | # if defined(HAVE_KRB5_CC_NEW_UNIQUE) || defined(HAVE_HEIMDAL) |
5bd77a73 | 4479 | char krb5ccname[1024]; /* KRB5CCNAME environment variable */ |
e6013cfa | 4480 | # endif /* HAVE_KRB5_CC_NEW_UNIQUE || HAVE_HEIMDAL */ |
5bd77a73 | 4481 | #endif /* HAVE_GSSAPI */ |
ef416fc2 | 4482 | |
4483 | ||
4484 | /* | |
4485 | * Parse a copy of the options string, which is of the form: | |
4486 | * | |
b423cd4c | 4487 | * argument+argument+argument |
4488 | * ?argument+argument+argument | |
4489 | * param=value¶m=value | |
4490 | * ?param=value¶m=value | |
4491 | * /name?argument+argument+argument | |
4492 | * /name?param=value¶m=value | |
ef416fc2 | 4493 | * |
4494 | * If the string contains an "=" character after the initial name, | |
4495 | * then we treat it as a HTTP GET form request and make a copy of | |
4496 | * the remaining string for the environment variable. | |
4497 | * | |
4498 | * The string is always parsed out as command-line arguments, to | |
4499 | * be consistent with Apache... | |
4500 | */ | |
4501 | ||
4502 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
4503 | "pipe_command: command=\"%s\", options=\"%s\"", | |
f301802f | 4504 | command, options ? options : "(null)"); |
ef416fc2 | 4505 | |
b86bc4cf | 4506 | argv[0] = command; |
ef416fc2 | 4507 | |
b423cd4c | 4508 | if (options) |
4509 | strlcpy(argbuf, options, sizeof(argbuf)); | |
4510 | else | |
4511 | argbuf[0] = '\0'; | |
4512 | ||
4513 | if (argbuf[0] == '/') | |
ef416fc2 | 4514 | { |
4515 | /* | |
b423cd4c | 4516 | * Found some trailing path information, set PATH_INFO... |
ef416fc2 | 4517 | */ |
4518 | ||
b423cd4c | 4519 | if ((commptr = strchr(argbuf, '?')) == NULL) |
4520 | commptr = argbuf + strlen(argbuf); | |
ef416fc2 | 4521 | |
b423cd4c | 4522 | commch = *commptr; |
4523 | *commptr = '\0'; | |
4524 | snprintf(path_info, sizeof(path_info), "PATH_INFO=%s", argbuf); | |
4525 | *commptr = commch; | |
4526 | } | |
4527 | else | |
4528 | { | |
4529 | commptr = argbuf; | |
4530 | path_info[0] = '\0'; | |
b94498cf | 4531 | |
4532 | if (*commptr == ' ') | |
4533 | commptr ++; | |
b423cd4c | 4534 | } |
ef416fc2 | 4535 | |
b86bc4cf | 4536 | if (*commptr == '?' && con->operation == HTTP_GET && !con->query_string) |
b423cd4c | 4537 | { |
4538 | commptr ++; | |
b86bc4cf | 4539 | cupsdSetStringf(&(con->query_string), "QUERY_STRING=%s", commptr); |
b423cd4c | 4540 | } |
ef416fc2 | 4541 | |
b423cd4c | 4542 | argc = 1; |
ef416fc2 | 4543 | |
b423cd4c | 4544 | if (*commptr) |
4545 | { | |
4546 | argv[argc ++] = commptr; | |
ef416fc2 | 4547 | |
b423cd4c | 4548 | for (; *commptr && argc < 99; commptr ++) |
4549 | { | |
ef416fc2 | 4550 | /* |
b423cd4c | 4551 | * Break arguments whenever we see a + or space... |
ef416fc2 | 4552 | */ |
4553 | ||
b423cd4c | 4554 | if (*commptr == ' ' || *commptr == '+') |
4555 | { | |
4556 | while (*commptr == ' ' || *commptr == '+') | |
4557 | *commptr++ = '\0'; | |
ef416fc2 | 4558 | |
b423cd4c | 4559 | /* |
4560 | * If we don't have a blank string, save it as another argument... | |
4561 | */ | |
ef416fc2 | 4562 | |
b423cd4c | 4563 | if (*commptr) |
4564 | { | |
4565 | argv[argc] = commptr; | |
4566 | argc ++; | |
4567 | } | |
4568 | else | |
4569 | break; | |
4570 | } | |
4571 | else if (*commptr == '%' && isxdigit(commptr[1] & 255) && | |
4572 | isxdigit(commptr[2] & 255)) | |
4573 | { | |
4574 | /* | |
4575 | * Convert the %xx notation to the individual character. | |
4576 | */ | |
ef416fc2 | 4577 | |
b423cd4c | 4578 | if (commptr[1] >= '0' && commptr[1] <= '9') |
4579 | *commptr = (commptr[1] - '0') << 4; | |
4580 | else | |
4581 | *commptr = (tolower(commptr[1]) - 'a' + 10) << 4; | |
ef416fc2 | 4582 | |
b423cd4c | 4583 | if (commptr[2] >= '0' && commptr[2] <= '9') |
4584 | *commptr |= commptr[2] - '0'; | |
4585 | else | |
4586 | *commptr |= tolower(commptr[2]) - 'a' + 10; | |
ef416fc2 | 4587 | |
b423cd4c | 4588 | _cups_strcpy(commptr + 1, commptr + 3); |
ef416fc2 | 4589 | |
b423cd4c | 4590 | /* |
4591 | * Check for a %00 and break if that is the case... | |
4592 | */ | |
ef416fc2 | 4593 | |
b423cd4c | 4594 | if (!*commptr) |
4595 | break; | |
4596 | } | |
ef416fc2 | 4597 | } |
4598 | } | |
4599 | ||
4600 | argv[argc] = NULL; | |
4601 | ||
ef416fc2 | 4602 | /* |
4603 | * Setup the environment variables as needed... | |
4604 | */ | |
4605 | ||
b94498cf | 4606 | if (con->username[0]) |
4607 | { | |
5bd77a73 | 4608 | snprintf(auth_type, sizeof(auth_type), "CUPSD_AUTH_TYPE=%s", |
b94498cf | 4609 | httpGetField(HTTP(con), HTTP_FIELD_AUTHORIZATION)); |
4610 | ||
4611 | if ((uriptr = strchr(auth_type + 10, ' ')) != NULL) | |
4612 | *uriptr = '\0'; | |
4613 | } | |
4614 | else | |
4615 | auth_type[0] = '\0'; | |
4616 | ||
7dfedb92 MS |
4617 | if (con->request && |
4618 | (attr = ippFindAttribute(con->request, "attributes-natural-language", | |
4619 | IPP_TAG_LANGUAGE)) != NULL) | |
4620 | { | |
4621 | switch (strlen(attr->values[0].string.text)) | |
4622 | { | |
4623 | default : | |
4624 | /* | |
4625 | * This is an unknown or badly formatted language code; use | |
4626 | * the POSIX locale... | |
4627 | */ | |
4628 | ||
4629 | strcpy(lang, "LANG=C"); | |
4630 | break; | |
4631 | ||
4632 | case 2 : | |
4633 | /* | |
4634 | * Just the language code (ll)... | |
4635 | */ | |
4636 | ||
4637 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", | |
4638 | attr->values[0].string.text); | |
4639 | break; | |
4640 | ||
4641 | case 5 : | |
4642 | /* | |
4643 | * Language and country code (ll-cc)... | |
4644 | */ | |
4645 | ||
4646 | snprintf(lang, sizeof(lang), "LANG=%c%c_%c%c.UTF8", | |
4647 | attr->values[0].string.text[0], | |
4648 | attr->values[0].string.text[1], | |
4649 | toupper(attr->values[0].string.text[3] & 255), | |
4650 | toupper(attr->values[0].string.text[4] & 255)); | |
4651 | break; | |
4652 | } | |
4653 | } | |
4654 | else if (con->language) | |
4655 | snprintf(lang, sizeof(lang), "LANG=%s.UTF8", con->language->language); | |
ef416fc2 | 4656 | else |
4657 | strcpy(lang, "LANG=C"); | |
4658 | ||
4659 | strcpy(remote_addr, "REMOTE_ADDR="); | |
4660 | httpAddrString(con->http.hostaddr, remote_addr + 12, | |
4661 | sizeof(remote_addr) - 12); | |
4662 | ||
4663 | snprintf(remote_host, sizeof(remote_host), "REMOTE_HOST=%s", | |
4664 | con->http.hostname); | |
4665 | ||
4666 | snprintf(script_name, sizeof(script_name), "SCRIPT_NAME=%s", con->uri); | |
4667 | if ((uriptr = strchr(script_name, '?')) != NULL) | |
4668 | *uriptr = '\0'; | |
4669 | ||
b94498cf | 4670 | snprintf(script_filename, sizeof(script_filename), "SCRIPT_FILENAME=%s%s", |
4671 | DocumentRoot, script_name + 12); | |
4672 | ||
ef416fc2 | 4673 | sprintf(server_port, "SERVER_PORT=%d", con->serverport); |
4674 | ||
4675 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
4676 | con->servername); | |
4677 | ||
4678 | envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0]))); | |
4679 | ||
b94498cf | 4680 | if (auth_type[0]) |
4681 | envp[envc ++] = auth_type; | |
4682 | ||
ef416fc2 | 4683 | envp[envc ++] = lang; |
4684 | envp[envc ++] = "REDIRECT_STATUS=1"; | |
b94498cf | 4685 | envp[envc ++] = "GATEWAY_INTERFACE=CGI/1.1"; |
ef416fc2 | 4686 | envp[envc ++] = server_name; |
4687 | envp[envc ++] = server_port; | |
4688 | envp[envc ++] = remote_addr; | |
4689 | envp[envc ++] = remote_host; | |
4690 | envp[envc ++] = script_name; | |
b94498cf | 4691 | envp[envc ++] = script_filename; |
ef416fc2 | 4692 | |
b423cd4c | 4693 | if (path_info[0]) |
4694 | envp[envc ++] = path_info; | |
4695 | ||
ef416fc2 | 4696 | if (con->username[0]) |
4697 | { | |
4698 | snprintf(remote_user, sizeof(remote_user), "REMOTE_USER=%s", con->username); | |
4699 | ||
4700 | envp[envc ++] = remote_user; | |
5bd77a73 MS |
4701 | |
4702 | /* | |
4703 | * Save Kerberos credentials, if any... | |
4704 | */ | |
4705 | ||
4706 | #ifdef HAVE_GSSAPI | |
4707 | if (con->gss_have_creds) | |
4708 | { | |
4709 | # if !defined(HAVE_KRB5_CC_NEW_UNIQUE) && !defined(HAVE_HEIMDAL) | |
4710 | cupsdLogMessage(CUPSD_LOG_INFO, | |
4711 | "Sorry, your version of Kerberos does not support " | |
4712 | "delegated credentials!"); | |
4713 | ||
4714 | # else | |
4715 | krb5_error_code error; /* Kerberos error code */ | |
4716 | OM_uint32 major_status, /* Major status code */ | |
4717 | minor_status; /* Minor status code */ | |
4718 | krb5_principal principal; /* Kerberos principal */ | |
4719 | ||
4720 | ||
4721 | # ifdef __APPLE__ | |
4722 | /* | |
4723 | * If the weak-linked GSSAPI/Kerberos library is not present, don't try | |
4724 | * to use it... | |
4725 | */ | |
4726 | ||
4727 | if (krb5_init_context != NULL) | |
4728 | { | |
4729 | # endif /* __APPLE__ */ | |
4730 | ||
0af14961 MS |
4731 | if (!KerberosInitialized) |
4732 | { | |
4733 | /* | |
4734 | * Setup a Kerberos context for the scheduler to use... | |
4735 | */ | |
4736 | ||
4737 | KerberosInitialized = 1; | |
4738 | ||
4739 | if (krb5_init_context(&KerberosContext)) | |
4740 | { | |
4741 | KerberosContext = NULL; | |
4742 | ||
4743 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to initialize Kerberos context"); | |
4744 | } | |
4745 | } | |
4746 | ||
5bd77a73 MS |
4747 | /* |
4748 | * We MUST create a file-based cache because memory-based caches are | |
4749 | * only valid for the current process/address space. | |
4750 | * | |
4751 | * Due to various bugs/features in different versions of Kerberos, we | |
4752 | * need either the krb5_cc_new_unique() function or Heimdal's version | |
4753 | * of krb5_cc_gen_new() to create a new FILE: credential cache that | |
4754 | * can be passed to the backend. These functions create a temporary | |
4755 | * file (typically in /tmp) containing the cached credentials, which | |
4756 | * are removed when we have successfully printed a job. | |
4757 | */ | |
4758 | ||
0af14961 MS |
4759 | if (KerberosContext) |
4760 | { | |
5bd77a73 | 4761 | # ifdef HAVE_KRB5_CC_NEW_UNIQUE |
0af14961 MS |
4762 | if ((error = krb5_cc_new_unique(KerberosContext, "FILE", NULL, |
4763 | &ccache)) != 0) | |
5bd77a73 | 4764 | # else /* HAVE_HEIMDAL */ |
0af14961 MS |
4765 | if ((error = krb5_cc_gen_new(KerberosContext, &krb5_fcc_ops, |
4766 | &ccache)) != 0) | |
5bd77a73 | 4767 | # endif /* HAVE_KRB5_CC_NEW_UNIQUE */ |
5bd77a73 | 4768 | { |
0af14961 MS |
4769 | cupsdLogMessage(CUPSD_LOG_ERROR, |
4770 | "Unable to create new credentials cache (%d/%s)", | |
4771 | error, strerror(errno)); | |
4772 | ccache = NULL; | |
4773 | } | |
4774 | else if ((error = krb5_parse_name(KerberosContext, con->username, | |
4775 | &principal)) != 0) | |
4776 | { | |
4777 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4778 | "Unable to parse kerberos username (%d/%s)", error, | |
4779 | strerror(errno)); | |
4780 | krb5_cc_destroy(KerberosContext, ccache); | |
4781 | ccache = NULL; | |
4782 | } | |
4783 | else if ((error = krb5_cc_initialize(KerberosContext, ccache, | |
4784 | principal))) | |
4785 | { | |
4786 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
4787 | "Unable to initialize credentials cache (%d/%s)", error, | |
4788 | strerror(errno)); | |
5bd77a73 | 4789 | krb5_cc_destroy(KerberosContext, ccache); |
0af14961 | 4790 | krb5_free_principal(KerberosContext, principal); |
5bd77a73 MS |
4791 | ccache = NULL; |
4792 | } | |
4793 | else | |
4794 | { | |
0af14961 MS |
4795 | krb5_free_principal(KerberosContext, principal); |
4796 | ||
5bd77a73 | 4797 | /* |
0af14961 | 4798 | * Copy the user's credentials to the new cache file... |
5bd77a73 MS |
4799 | */ |
4800 | ||
0af14961 MS |
4801 | major_status = gss_krb5_copy_ccache(&minor_status, |
4802 | con->gss_delegated_cred, ccache); | |
5bd77a73 | 4803 | |
0af14961 MS |
4804 | if (GSS_ERROR(major_status)) |
4805 | { | |
4806 | cupsdLogGSSMessage(CUPSD_LOG_ERROR, major_status, minor_status, | |
4807 | "Unable to import client credentials cache"); | |
4808 | krb5_cc_destroy(KerberosContext, ccache); | |
4809 | ccache = NULL; | |
4810 | } | |
4811 | else | |
4812 | { | |
4813 | /* | |
4814 | * Add the KRB5CCNAME environment variable to the job so that the | |
4815 | * backend can use the credentials when printing. | |
4816 | */ | |
4817 | ||
4818 | snprintf(krb5ccname, sizeof(krb5ccname), "KRB5CCNAME=FILE:%s", | |
4819 | krb5_cc_get_name(KerberosContext, ccache)); | |
4820 | envp[envc++] = krb5ccname; | |
4821 | ||
4822 | if (!RunUser) | |
4823 | chown(krb5_cc_get_name(KerberosContext, ccache), User, Group); | |
4824 | } | |
4825 | } | |
5bd77a73 MS |
4826 | } |
4827 | # ifdef __APPLE__ | |
4828 | } | |
4829 | # endif /* __APPLE__ */ | |
4830 | # endif /* HAVE_KRB5_CC_NEW_UNIQUE || HAVE_HEIMDAL */ | |
4831 | } | |
4832 | #endif /* HAVE_GSSAPI */ | |
ef416fc2 | 4833 | } |
4834 | ||
4835 | if (con->http.version == HTTP_1_1) | |
4836 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.1"; | |
4837 | else if (con->http.version == HTTP_1_0) | |
4838 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.0"; | |
4839 | else | |
4840 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/0.9"; | |
4841 | ||
4842 | if (con->http.cookie) | |
4843 | { | |
4844 | snprintf(http_cookie, sizeof(http_cookie), "HTTP_COOKIE=%s", | |
4845 | con->http.cookie); | |
4846 | envp[envc ++] = http_cookie; | |
4847 | } | |
4848 | ||
4849 | if (con->http.fields[HTTP_FIELD_USER_AGENT][0]) | |
4850 | { | |
4851 | snprintf(http_user_agent, sizeof(http_user_agent), "HTTP_USER_AGENT=%s", | |
4852 | con->http.fields[HTTP_FIELD_USER_AGENT]); | |
4853 | envp[envc ++] = http_user_agent; | |
4854 | } | |
4855 | ||
f7deaa1a | 4856 | if (con->http.fields[HTTP_FIELD_REFERER][0]) |
4857 | { | |
4858 | snprintf(http_referer, sizeof(http_referer), "HTTP_REFERER=%s", | |
4859 | con->http.fields[HTTP_FIELD_REFERER]); | |
4860 | envp[envc ++] = http_referer; | |
4861 | } | |
4862 | ||
ef416fc2 | 4863 | if (con->operation == HTTP_GET) |
4864 | { | |
ef416fc2 | 4865 | envp[envc ++] = "REQUEST_METHOD=GET"; |
4866 | ||
b86bc4cf | 4867 | if (con->query_string) |
ef416fc2 | 4868 | { |
4869 | /* | |
4870 | * Add GET form variables after ?... | |
4871 | */ | |
4872 | ||
b86bc4cf | 4873 | envp[envc ++] = con->query_string; |
ef416fc2 | 4874 | } |
3dfe78b3 MS |
4875 | else |
4876 | envp[envc ++] = "QUERY_STRING="; | |
ef416fc2 | 4877 | } |
4878 | else | |
4879 | { | |
e1d6a774 | 4880 | sprintf(content_length, "CONTENT_LENGTH=" CUPS_LLFMT, |
4881 | CUPS_LLCAST con->bytes); | |
ef416fc2 | 4882 | snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s", |
4883 | con->http.fields[HTTP_FIELD_CONTENT_TYPE]); | |
4884 | ||
4885 | envp[envc ++] = "REQUEST_METHOD=POST"; | |
4886 | envp[envc ++] = content_length; | |
4887 | envp[envc ++] = content_type; | |
4888 | } | |
4889 | ||
4890 | /* | |
4891 | * Tell the CGI if we are using encryption... | |
4892 | */ | |
4893 | ||
a74454a7 | 4894 | if (con->http.tls) |
ef416fc2 | 4895 | envp[envc ++] = "HTTPS=ON"; |
4896 | ||
4897 | /* | |
4898 | * Terminate the environment array... | |
4899 | */ | |
4900 | ||
4901 | envp[envc] = NULL; | |
4902 | ||
4903 | if (LogLevel == CUPSD_LOG_DEBUG2) | |
4904 | { | |
4905 | for (i = 0; i < argc; i ++) | |
4906 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
4907 | "pipe_command: argv[%d] = \"%s\"", i, argv[i]); | |
4908 | for (i = 0; i < envc; i ++) | |
4909 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
4910 | "pipe_command: envp[%d] = \"%s\"", i, envp[i]); | |
4911 | } | |
4912 | ||
4913 | /* | |
4914 | * Create a pipe for the output... | |
4915 | */ | |
4916 | ||
4917 | if (cupsdOpenPipe(fds)) | |
4918 | { | |
ef416fc2 | 4919 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create pipes for CGI %s - %s", |
4920 | argv[0], strerror(errno)); | |
4921 | return (0); | |
4922 | } | |
4923 | ||
4924 | /* | |
4925 | * Then execute the command... | |
4926 | */ | |
4927 | ||
4928 | if (cupsdStartProcess(command, argv, envp, infile, fds[1], CGIPipes[1], | |
a4924f6c | 4929 | -1, -1, root, DefaultProfile, &pid) < 0) |
ef416fc2 | 4930 | { |
4931 | /* | |
4932 | * Error - can't fork! | |
4933 | */ | |
4934 | ||
4935 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to fork for CGI %s - %s", argv[0], | |
4936 | strerror(errno)); | |
4937 | ||
4938 | cupsdClosePipe(fds); | |
4939 | pid = 0; | |
4940 | } | |
4941 | else | |
4942 | { | |
4943 | /* | |
4944 | * Fork successful - return the PID... | |
4945 | */ | |
4946 | ||
4947 | if (con->username[0]) | |
5bd77a73 MS |
4948 | #ifdef HAVE_GSSAPI |
4949 | cupsdAddCert(pid, con->username, ccache); | |
4950 | #else | |
4951 | cupsdAddCert(pid, con->username, NULL); | |
4952 | #endif /* HAVE_GSSAPI */ | |
ef416fc2 | 4953 | |
355e94dc MS |
4954 | cupsdLogMessage(CUPSD_LOG_DEBUG, "[CGI] %s started - PID = %d", |
4955 | command, pid); | |
ef416fc2 | 4956 | |
4957 | *outfile = fds[0]; | |
4958 | close(fds[1]); | |
4959 | } | |
4960 | ||
ef416fc2 | 4961 | return (pid); |
4962 | } | |
4963 | ||
4964 | ||
4965 | /* | |
a74454a7 | 4966 | * 'write_file()' - Send a file via HTTP. |
e1d6a774 | 4967 | */ |
4968 | ||
4969 | static int /* O - 0 on failure, 1 on success */ | |
a74454a7 | 4970 | write_file(cupsd_client_t *con, /* I - Client connection */ |
4971 | http_status_t code, /* I - HTTP status */ | |
4972 | char *filename, /* I - Filename */ | |
4973 | char *type, /* I - File type */ | |
4974 | struct stat *filestats) /* O - File information */ | |
e1d6a774 | 4975 | { |
4976 | con->file = open(filename, O_RDONLY); | |
4977 | ||
355e94dc | 4978 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "write_file: %d file=%d", con->http.fd, |
e1d6a774 | 4979 | con->file); |
4980 | ||
4981 | if (con->file < 0) | |
4982 | return (0); | |
4983 | ||
4984 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
4985 | ||
4986 | con->pipe_pid = 0; | |
4987 | ||
5bd77a73 | 4988 | if (!cupsdSendHeader(con, code, type, CUPSD_AUTH_NONE)) |
e1d6a774 | 4989 | return (0); |
4990 | ||
4991 | if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n", | |
4992 | httpGetDateString(filestats->st_mtime)) < 0) | |
4993 | return (0); | |
4994 | if (httpPrintf(HTTP(con), "Content-Length: " CUPS_LLFMT "\r\n", | |
4995 | CUPS_LLCAST filestats->st_size) < 0) | |
4996 | return (0); | |
4997 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
4998 | return (0); | |
4999 | ||
07725fee | 5000 | if (cupsdFlushHeader(con) < 0) |
5001 | return (0); | |
d09495fa | 5002 | |
e1d6a774 | 5003 | con->http.data_encoding = HTTP_ENCODE_LENGTH; |
5004 | con->http.data_remaining = filestats->st_size; | |
5005 | ||
5006 | if (con->http.data_remaining <= INT_MAX) | |
5007 | con->http._data_remaining = con->http.data_remaining; | |
5008 | else | |
5009 | con->http._data_remaining = INT_MAX; | |
5010 | ||
f7deaa1a | 5011 | cupsdAddSelect(con->http.fd, (cupsd_selfunc_t)cupsdReadClient, |
5012 | (cupsd_selfunc_t)cupsdWriteClient, con); | |
e1d6a774 | 5013 | |
5014 | return (1); | |
5015 | } | |
5016 | ||
5017 | ||
5018 | /* | |
f899b121 | 5019 | * 'write_pipe()' - Flag that data is available on the CGI pipe. |
5020 | */ | |
5021 | ||
5022 | static void | |
5023 | write_pipe(cupsd_client_t *con) /* I - Client connection */ | |
5024 | { | |
5025 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "write_pipe: CGI output on fd %d...", | |
5026 | con->file); | |
5027 | ||
5028 | con->file_ready = 1; | |
5029 | ||
5030 | cupsdRemoveSelect(con->file); | |
5031 | cupsdAddSelect(con->http.fd, NULL, (cupsd_selfunc_t)cupsdWriteClient, con); | |
5032 | } | |
5033 | ||
5034 | ||
5035 | /* | |
b19ccc9e | 5036 | * End of "$Id: client.c 7950 2008-09-17 00:21:59Z mike $". |
ef416fc2 | 5037 | */ |