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ef416fc2 | 1 | /* |
2abf387c | 2 | * "$Id: client.c 6027 2006-10-11 21:04:58Z mike $" |
ef416fc2 | 3 | * |
4 | * Client routines for the Common UNIX Printing System (CUPS) scheduler. | |
5 | * | |
6 | * Copyright 1997-2006 by Easy Software Products, all rights reserved. | |
7 | * | |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE.txt" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * Contents: | |
25 | * | |
26 | * cupsdAcceptClient() - Accept a new client. | |
27 | * cupsdCloseAllClients() - Close all remote clients immediately. | |
28 | * cupsdCloseClient() - Close a remote client. | |
d09495fa | 29 | * cupsdFlushHeader() - Flush the header fields to the client. |
ef416fc2 | 30 | * cupsdReadClient() - Read data from a client. |
31 | * cupsdSendCommand() - Send output from a command via HTTP. | |
32 | * cupsdSendError() - Send an error message via HTTP. | |
ef416fc2 | 33 | * cupsdSendHeader() - Send an HTTP request. |
34 | * cupsdUpdateCGI() - Read status messages from CGI scripts and programs. | |
35 | * cupsdWriteClient() - Write data to a client as needed. | |
36 | * check_if_modified() - Decode an "If-Modified-Since" line. | |
e1d6a774 | 37 | * encrypt_client() - Enable encryption for the client... |
ef416fc2 | 38 | * get_cdsa_server_certs() - Convert a keychain name into the CFArrayRef |
39 | * required by SSLSetCertificate. | |
40 | * get_file() - Get a filename and state info. | |
41 | * install_conf_file() - Install a configuration file. | |
e1d6a774 | 42 | * is_cgi() - Is the resource a CGI script/program? |
ef416fc2 | 43 | * is_path_absolute() - Is a path absolute and free of relative elements. |
4744bd90 | 44 | * make_certificate() - Make a self-signed SSL/TLS certificate. |
ef416fc2 | 45 | * pipe_command() - Pipe the output of a command to the remote client. |
a74454a7 | 46 | * write_file() - Send a file via HTTP. |
ef416fc2 | 47 | */ |
48 | ||
49 | /* | |
50 | * Include necessary headers... | |
51 | */ | |
52 | ||
53 | #include <cups/http-private.h> | |
54 | #include "cupsd.h" | |
55 | ||
56 | #ifdef HAVE_CDSASSL | |
57 | # include <Security/Security.h> | |
ed486911 | 58 | # ifdef HAVE_SECBASEPRIV_H |
59 | # include <Security/SecBasePriv.h> | |
60 | # else | |
61 | extern const char *cssmErrorString(int error); | |
62 | # endif /* HAVE_SECBASEPRIV_H */ | |
ef416fc2 | 63 | #endif /* HAVE_CDSASSL */ |
4744bd90 | 64 | #ifdef HAVE_GNUTLS |
65 | # include <gnutls/x509.h> | |
66 | #endif /* HAVE_GNUTLS */ | |
ef416fc2 | 67 | |
68 | ||
69 | /* | |
70 | * Local functions... | |
71 | */ | |
72 | ||
73 | static int check_if_modified(cupsd_client_t *con, | |
74 | struct stat *filestats); | |
80ca4592 | 75 | #ifdef HAVE_SSL |
e1d6a774 | 76 | static int encrypt_client(cupsd_client_t *con); |
80ca4592 | 77 | #endif /* HAVE_SSL */ |
ef416fc2 | 78 | #ifdef HAVE_CDSASSL |
79 | static CFArrayRef get_cdsa_server_certs(void); | |
80 | #endif /* HAVE_CDSASSL */ | |
81 | static char *get_file(cupsd_client_t *con, struct stat *filestats, | |
82 | char *filename, int len); | |
83 | static http_status_t install_conf_file(cupsd_client_t *con); | |
e1d6a774 | 84 | static int is_cgi(cupsd_client_t *con, const char *filename, |
85 | struct stat *filestats, mime_type_t *type); | |
ef416fc2 | 86 | static int is_path_absolute(const char *path); |
8ca02f3c | 87 | #ifdef HAVE_SSL |
88 | static int make_certificate(void); | |
89 | #endif /* HAVE_SSL */ | |
ef416fc2 | 90 | static int pipe_command(cupsd_client_t *con, int infile, int *outfile, |
91 | char *command, char *options, int root); | |
a74454a7 | 92 | static int write_file(cupsd_client_t *con, http_status_t code, |
93 | char *filename, char *type, | |
94 | struct stat *filestats); | |
ef416fc2 | 95 | |
96 | ||
97 | /* | |
98 | * 'cupsdAcceptClient()' - Accept a new client. | |
99 | */ | |
100 | ||
101 | void | |
102 | cupsdAcceptClient(cupsd_listener_t *lis)/* I - Listener socket */ | |
103 | { | |
ef416fc2 | 104 | int count; /* Count of connections on a host */ |
105 | int val; /* Parameter value */ | |
bd7854cb | 106 | cupsd_client_t *con, /* New client pointer */ |
107 | *tempcon; /* Temporary client pointer */ | |
ef416fc2 | 108 | http_addrlist_t *addrlist, /* List of adddresses for host */ |
109 | *addr; /* Current address */ | |
110 | socklen_t addrlen; /* Length of address */ | |
111 | char *hostname; /* Hostname for address */ | |
112 | http_addr_t temp; /* Temporary address variable */ | |
113 | static time_t last_dos = 0; /* Time of last DoS attack */ | |
114 | ||
115 | ||
116 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
bd7854cb | 117 | "cupsdAcceptClient(lis=%p) %d Clients = %d", |
118 | lis, lis->fd, cupsArrayCount(Clients)); | |
ef416fc2 | 119 | |
120 | /* | |
121 | * Make sure we don't have a full set of clients already... | |
122 | */ | |
123 | ||
bd7854cb | 124 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 125 | return; |
126 | ||
127 | /* | |
128 | * Get a pointer to the next available client... | |
129 | */ | |
130 | ||
bd7854cb | 131 | if (!Clients) |
132 | Clients = cupsArrayNew(NULL, NULL); | |
133 | ||
134 | if (!Clients) | |
135 | return; | |
136 | ||
137 | con = calloc(1, sizeof(cupsd_client_t)); | |
ef416fc2 | 138 | |
ef416fc2 | 139 | con->http.activity = time(NULL); |
140 | con->file = -1; | |
141 | con->http.hostaddr = &(con->clientaddr); | |
142 | ||
143 | /* | |
144 | * Accept the client and get the remote address... | |
145 | */ | |
146 | ||
147 | addrlen = sizeof(http_addr_t); | |
148 | ||
149 | if ((con->http.fd = accept(lis->fd, (struct sockaddr *)con->http.hostaddr, | |
150 | &addrlen)) < 0) | |
151 | { | |
152 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to accept client connection - %s.", | |
153 | strerror(errno)); | |
bd7854cb | 154 | free(con); |
ef416fc2 | 155 | return; |
156 | } | |
157 | ||
158 | #ifdef AF_INET6 | |
159 | if (lis->address.addr.sa_family == AF_INET6) | |
160 | { | |
161 | /* | |
162 | * Save the connected port number... | |
163 | */ | |
164 | ||
165 | con->http.hostaddr->ipv6.sin6_port = lis->address.ipv6.sin6_port; | |
166 | ||
167 | /* | |
168 | * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we | |
169 | * can more easily use... | |
170 | */ | |
171 | ||
172 | if (con->http.hostaddr->ipv6.sin6_addr.s6_addr32[0] == 0 && | |
173 | con->http.hostaddr->ipv6.sin6_addr.s6_addr32[1] == 0 && | |
174 | ntohl(con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2]) == 0xffff) | |
175 | con->http.hostaddr->ipv6.sin6_addr.s6_addr32[2] = 0; | |
176 | } | |
177 | else | |
178 | #endif /* AF_INET6 */ | |
179 | if (lis->address.addr.sa_family == AF_INET) | |
180 | con->http.hostaddr->ipv4.sin_port = lis->address.ipv4.sin_port; | |
181 | ||
182 | /* | |
183 | * Check the number of clients on the same address... | |
184 | */ | |
185 | ||
bd7854cb | 186 | for (count = 0, tempcon = (cupsd_client_t *)cupsArrayFirst(Clients); |
187 | tempcon; | |
188 | tempcon = (cupsd_client_t *)cupsArrayNext(Clients)) | |
189 | if (httpAddrEqual(tempcon->http.hostaddr, con->http.hostaddr)) | |
ef416fc2 | 190 | { |
191 | count ++; | |
192 | if (count >= MaxClientsPerHost) | |
193 | break; | |
194 | } | |
195 | ||
196 | if (count >= MaxClientsPerHost) | |
197 | { | |
198 | if ((time(NULL) - last_dos) >= 60) | |
199 | { | |
200 | last_dos = time(NULL); | |
201 | cupsdLogMessage(CUPSD_LOG_WARN, | |
bd7854cb | 202 | "Possible DoS attack - more than %d clients connecting " |
203 | "from %s!", | |
204 | MaxClientsPerHost, tempcon->http.hostname); | |
ef416fc2 | 205 | } |
206 | ||
207 | #ifdef WIN32 | |
208 | closesocket(con->http.fd); | |
209 | #else | |
210 | close(con->http.fd); | |
211 | #endif /* WIN32 */ | |
212 | ||
bd7854cb | 213 | free(con); |
ef416fc2 | 214 | return; |
215 | } | |
216 | ||
217 | /* | |
218 | * Get the hostname or format the IP address as needed... | |
219 | */ | |
220 | ||
221 | if (httpAddrLocalhost(con->http.hostaddr)) | |
222 | { | |
223 | /* | |
224 | * Map accesses from the loopback interface to "localhost"... | |
225 | */ | |
226 | ||
227 | strlcpy(con->http.hostname, "localhost", sizeof(con->http.hostname)); | |
228 | hostname = con->http.hostname; | |
229 | } | |
230 | else | |
231 | { | |
232 | /* | |
233 | * Map accesses from the same host to the server name. | |
234 | */ | |
235 | ||
236 | for (addr = ServerAddrs; addr; addr = addr->next) | |
237 | if (httpAddrEqual(con->http.hostaddr, &(addr->addr))) | |
238 | break; | |
239 | ||
240 | if (addr) | |
241 | { | |
242 | strlcpy(con->http.hostname, ServerName, sizeof(con->http.hostname)); | |
243 | hostname = con->http.hostname; | |
244 | } | |
245 | else if (HostNameLookups) | |
246 | hostname = httpAddrLookup(con->http.hostaddr, con->http.hostname, | |
247 | sizeof(con->http.hostname)); | |
248 | else | |
249 | { | |
250 | hostname = NULL; | |
251 | httpAddrString(con->http.hostaddr, con->http.hostname, | |
252 | sizeof(con->http.hostname)); | |
253 | } | |
254 | } | |
255 | ||
256 | if (hostname == NULL && HostNameLookups == 2) | |
257 | { | |
258 | /* | |
259 | * Can't have an unresolved IP address with double-lookups enabled... | |
260 | */ | |
261 | ||
262 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
263 | "cupsdAcceptClient: Closing connection %d...", | |
264 | con->http.fd); | |
265 | ||
266 | #ifdef WIN32 | |
267 | closesocket(con->http.fd); | |
268 | #else | |
269 | close(con->http.fd); | |
270 | #endif /* WIN32 */ | |
271 | ||
272 | cupsdLogMessage(CUPSD_LOG_WARN, | |
273 | "Name lookup failed - connection from %s closed!", | |
274 | con->http.hostname); | |
bd7854cb | 275 | |
276 | free(con); | |
ef416fc2 | 277 | return; |
278 | } | |
279 | ||
280 | if (HostNameLookups == 2) | |
281 | { | |
282 | /* | |
283 | * Do double lookups as needed... | |
284 | */ | |
285 | ||
286 | if ((addrlist = httpAddrGetList(con->http.hostname, AF_UNSPEC, NULL)) != NULL) | |
287 | { | |
288 | /* | |
289 | * See if the hostname maps to the same IP address... | |
290 | */ | |
291 | ||
292 | for (addr = addrlist; addr; addr = addr->next) | |
293 | if (httpAddrEqual(con->http.hostaddr, &(addr->addr))) | |
294 | break; | |
295 | } | |
296 | else | |
297 | addr = NULL; | |
298 | ||
299 | httpAddrFreeList(addrlist); | |
300 | ||
301 | if (!addr) | |
302 | { | |
303 | /* | |
304 | * Can't have a hostname that doesn't resolve to the same IP address | |
305 | * with double-lookups enabled... | |
306 | */ | |
307 | ||
308 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
309 | "cupsdAcceptClient: Closing connection %d...", | |
310 | con->http.fd); | |
311 | ||
312 | #ifdef WIN32 | |
313 | closesocket(con->http.fd); | |
314 | #else | |
315 | close(con->http.fd); | |
316 | #endif /* WIN32 */ | |
317 | ||
318 | cupsdLogMessage(CUPSD_LOG_WARN, | |
319 | "IP lookup failed - connection from %s closed!", | |
320 | con->http.hostname); | |
bd7854cb | 321 | free(con); |
ef416fc2 | 322 | return; |
323 | } | |
324 | } | |
325 | ||
326 | #ifdef AF_INET6 | |
327 | if (con->http.hostaddr->addr.sa_family == AF_INET6) | |
328 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv6)", | |
329 | con->http.fd, con->http.hostname, | |
330 | ntohs(con->http.hostaddr->ipv6.sin6_port)); | |
331 | else | |
332 | #endif /* AF_INET6 */ | |
333 | #ifdef AF_LOCAL | |
334 | if (con->http.hostaddr->addr.sa_family == AF_LOCAL) | |
335 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s (Domain)", | |
336 | con->http.fd, con->http.hostname); | |
337 | else | |
338 | #endif /* AF_LOCAL */ | |
339 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdAcceptClient: %d from %s:%d (IPv4)", | |
340 | con->http.fd, con->http.hostname, | |
341 | ntohs(con->http.hostaddr->ipv4.sin_port)); | |
342 | ||
343 | /* | |
344 | * Get the local address the client connected to... | |
345 | */ | |
346 | ||
347 | addrlen = sizeof(temp); | |
348 | if (getsockname(con->http.fd, (struct sockaddr *)&temp, &addrlen)) | |
349 | { | |
350 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get local address - %s", | |
351 | strerror(errno)); | |
352 | ||
353 | strcpy(con->servername, "localhost"); | |
354 | con->serverport = LocalPort; | |
355 | } | |
356 | else | |
357 | { | |
358 | #ifdef AF_INET6 | |
359 | if (temp.addr.sa_family == AF_INET6) | |
360 | { | |
361 | httpAddrLookup(&temp, con->servername, sizeof(con->servername)); | |
362 | con->serverport = ntohs(lis->address.ipv6.sin6_port); | |
363 | } | |
364 | else | |
365 | #endif /* AF_INET6 */ | |
366 | if (temp.addr.sa_family == AF_INET) | |
367 | { | |
368 | httpAddrLookup(&temp, con->servername, sizeof(con->servername)); | |
369 | con->serverport = ntohs(lis->address.ipv4.sin_port); | |
370 | } | |
371 | else | |
372 | { | |
373 | strcpy(con->servername, "localhost"); | |
374 | con->serverport = LocalPort; | |
375 | } | |
376 | } | |
377 | ||
bd7854cb | 378 | cupsArrayAdd(Clients, con); |
379 | ||
ef416fc2 | 380 | cupsdLogMessage(CUPSD_LOG_DEBUG2, |
381 | "cupsdAcceptClient: %d connected to server on %s:%d", | |
382 | con->http.fd, con->servername, con->serverport); | |
383 | ||
384 | /* | |
385 | * Using TCP_NODELAY improves responsiveness, especially on systems | |
386 | * with a slow loopback interface... Since we write large buffers | |
387 | * when sending print files and requests, there shouldn't be any | |
388 | * performance penalty for this... | |
389 | */ | |
390 | ||
391 | val = 1; | |
392 | setsockopt(con->http.fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val)); | |
393 | ||
394 | /* | |
395 | * Close this file on all execs... | |
396 | */ | |
397 | ||
398 | fcntl(con->http.fd, F_SETFD, fcntl(con->http.fd, F_GETFD) | FD_CLOEXEC); | |
399 | ||
400 | /* | |
401 | * Add the socket to the select() input mask. | |
402 | */ | |
403 | ||
404 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
405 | "cupsdAcceptClient: Adding fd %d to InputSet...", | |
406 | con->http.fd); | |
407 | FD_SET(con->http.fd, InputSet); | |
408 | ||
ef416fc2 | 409 | /* |
410 | * Temporarily suspend accept()'s until we lose a client... | |
411 | */ | |
412 | ||
bd7854cb | 413 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 414 | cupsdPauseListening(); |
415 | ||
416 | #ifdef HAVE_SSL | |
417 | /* | |
418 | * See if we are connecting on a secure port... | |
419 | */ | |
420 | ||
421 | if (lis->encryption == HTTP_ENCRYPT_ALWAYS) | |
422 | { | |
423 | /* | |
424 | * https connection; go secure... | |
425 | */ | |
426 | ||
427 | con->http.encryption = HTTP_ENCRYPT_ALWAYS; | |
428 | ||
e1d6a774 | 429 | encrypt_client(con); |
ef416fc2 | 430 | } |
431 | else | |
432 | con->auto_ssl = 1; | |
433 | #endif /* HAVE_SSL */ | |
434 | } | |
435 | ||
436 | ||
437 | /* | |
438 | * 'cupsdCloseAllClients()' - Close all remote clients immediately. | |
439 | */ | |
440 | ||
441 | void | |
442 | cupsdCloseAllClients(void) | |
443 | { | |
bd7854cb | 444 | cupsd_client_t *con; /* Current client */ |
445 | ||
446 | ||
447 | for (con = (cupsd_client_t *)cupsArrayFirst(Clients); | |
448 | con; | |
449 | con = (cupsd_client_t *)cupsArrayNext(Clients)) | |
450 | cupsdCloseClient(con); | |
ef416fc2 | 451 | } |
452 | ||
453 | ||
454 | /* | |
455 | * 'cupsdCloseClient()' - Close a remote client. | |
456 | */ | |
457 | ||
458 | int /* O - 1 if partial close, 0 if fully closed */ | |
459 | cupsdCloseClient(cupsd_client_t *con) /* I - Client to close */ | |
460 | { | |
461 | int partial; /* Do partial close for SSL? */ | |
462 | #ifdef HAVE_LIBSSL | |
463 | SSL_CTX *context; /* Context for encryption */ | |
464 | SSL *conn; /* Connection for encryption */ | |
465 | unsigned long error; /* Error code */ | |
466 | #elif defined(HAVE_GNUTLS) | |
89d46774 | 467 | http_tls_t *conn; /* TLS connection information */ |
468 | int error; /* Error code */ | |
ef416fc2 | 469 | gnutls_certificate_server_credentials *credentials; |
470 | /* TLS credentials */ | |
89d46774 | 471 | # elif defined(HAVE_CDSASSL) |
472 | http_tls_t *conn; /* CDSA connection information */ | |
ef416fc2 | 473 | #endif /* HAVE_LIBSSL */ |
474 | ||
475 | ||
476 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdCloseClient: %d", con->http.fd); | |
477 | ||
478 | /* | |
479 | * Flush pending writes before closing... | |
480 | */ | |
481 | ||
482 | httpFlushWrite(HTTP(con)); | |
483 | ||
484 | partial = 0; | |
485 | ||
486 | #ifdef HAVE_SSL | |
487 | /* | |
488 | * Shutdown encryption as needed... | |
489 | */ | |
490 | ||
491 | if (con->http.tls) | |
492 | { | |
493 | partial = 1; | |
494 | ||
495 | # ifdef HAVE_LIBSSL | |
496 | conn = (SSL *)(con->http.tls); | |
497 | context = SSL_get_SSL_CTX(conn); | |
498 | ||
499 | switch (SSL_shutdown(conn)) | |
500 | { | |
501 | case 1 : | |
502 | cupsdLogMessage(CUPSD_LOG_INFO, | |
503 | "cupsdCloseClient: SSL shutdown successful!"); | |
504 | break; | |
505 | case -1 : | |
506 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
507 | "cupsdCloseClient: Fatal error during SSL shutdown!"); | |
508 | default : | |
509 | while ((error = ERR_get_error()) != 0) | |
510 | cupsdLogMessage(CUPSD_LOG_ERROR, "cupsdCloseClient: %s", | |
511 | ERR_error_string(error, NULL)); | |
512 | break; | |
513 | } | |
514 | ||
515 | SSL_CTX_free(context); | |
516 | SSL_free(conn); | |
517 | ||
518 | # elif defined(HAVE_GNUTLS) | |
519 | conn = (http_tls_t *)(con->http.tls); | |
520 | credentials = (gnutls_certificate_server_credentials *)(conn->credentials); | |
521 | ||
522 | error = gnutls_bye(conn->session, GNUTLS_SHUT_WR); | |
523 | switch (error) | |
524 | { | |
525 | case GNUTLS_E_SUCCESS: | |
526 | cupsdLogMessage(CUPSD_LOG_INFO, | |
527 | "cupsdCloseClient: SSL shutdown successful!"); | |
528 | break; | |
529 | default: | |
530 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
531 | "cupsdCloseClient: %s", gnutls_strerror(error)); | |
532 | break; | |
533 | } | |
534 | ||
535 | gnutls_deinit(conn->session); | |
536 | gnutls_certificate_free_credentials(*credentials); | |
537 | free(credentials); | |
538 | free(conn); | |
539 | ||
540 | # elif defined(HAVE_CDSASSL) | |
89d46774 | 541 | conn = (http_tls_t *)(con->http.tls); |
542 | ||
543 | while (SSLClose(conn->session) == errSSLWouldBlock) | |
b423cd4c | 544 | usleep(1000); |
545 | ||
89d46774 | 546 | SSLDisposeContext(conn->session); |
547 | ||
548 | if (conn->certsArray) | |
549 | CFRelease(conn->certsArray); | |
550 | ||
551 | free(conn); | |
ef416fc2 | 552 | # endif /* HAVE_LIBSSL */ |
553 | ||
554 | con->http.tls = NULL; | |
555 | } | |
556 | #endif /* HAVE_SSL */ | |
557 | ||
558 | if (con->pipe_pid != 0) | |
559 | { | |
560 | /* | |
561 | * Stop any CGI process... | |
562 | */ | |
563 | ||
564 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
565 | "cupsdCloseClient: %d Killing process ID %d...", | |
566 | con->http.fd, con->pipe_pid); | |
567 | cupsdEndProcess(con->pipe_pid, 1); | |
568 | con->pipe_pid = 0; | |
569 | } | |
570 | ||
571 | if (con->file >= 0) | |
572 | { | |
573 | if (FD_ISSET(con->file, InputSet)) | |
574 | { | |
575 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
576 | "cupsdCloseClient: %d Removing fd %d from InputSet...", | |
577 | con->http.fd, con->file); | |
578 | FD_CLR(con->file, InputSet); | |
579 | } | |
580 | ||
581 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
582 | "cupsdCloseClient: %d Closing data file %d.", | |
583 | con->http.fd, con->file); | |
584 | ||
585 | close(con->file); | |
586 | con->file = -1; | |
587 | } | |
588 | ||
589 | /* | |
590 | * Close the socket and clear the file from the input set for select()... | |
591 | */ | |
592 | ||
593 | if (con->http.fd > 0) | |
594 | { | |
595 | if (partial) | |
596 | { | |
597 | /* | |
598 | * Only do a partial close so that the encrypted client gets everything. | |
599 | */ | |
600 | ||
601 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
602 | "cupsdCloseClient: Removing fd %d from OutputSet...", | |
603 | con->http.fd); | |
604 | shutdown(con->http.fd, 0); | |
605 | FD_CLR(con->http.fd, OutputSet); | |
606 | } | |
607 | else | |
608 | { | |
609 | /* | |
610 | * Shut the socket down fully... | |
611 | */ | |
612 | ||
613 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
614 | "cupsdCloseClient: Removing fd %d from InputSet and OutputSet...", | |
615 | con->http.fd); | |
616 | close(con->http.fd); | |
617 | FD_CLR(con->http.fd, InputSet); | |
618 | FD_CLR(con->http.fd, OutputSet); | |
619 | con->http.fd = -1; | |
620 | } | |
621 | } | |
622 | ||
623 | if (!partial) | |
624 | { | |
625 | /* | |
626 | * Free memory... | |
627 | */ | |
628 | ||
629 | if (con->http.input_set) | |
630 | free(con->http.input_set); | |
631 | ||
632 | httpClearCookie(HTTP(con)); | |
633 | ||
634 | cupsdClearString(&con->filename); | |
635 | cupsdClearString(&con->command); | |
636 | cupsdClearString(&con->options); | |
637 | ||
638 | if (con->request) | |
639 | { | |
640 | ippDelete(con->request); | |
641 | con->request = NULL; | |
642 | } | |
643 | ||
644 | if (con->response) | |
645 | { | |
646 | ippDelete(con->response); | |
647 | con->response = NULL; | |
648 | } | |
649 | ||
650 | if (con->language) | |
651 | { | |
652 | cupsLangFree(con->language); | |
653 | con->language = NULL; | |
654 | } | |
655 | ||
656 | /* | |
657 | * Re-enable new client connections if we are going back under the | |
658 | * limit... | |
659 | */ | |
660 | ||
bd7854cb | 661 | if (cupsArrayCount(Clients) == MaxClients) |
ef416fc2 | 662 | cupsdResumeListening(); |
663 | ||
664 | /* | |
665 | * Compact the list of clients as necessary... | |
666 | */ | |
667 | ||
bd7854cb | 668 | cupsArrayRemove(Clients, con); |
ef416fc2 | 669 | |
bd7854cb | 670 | free(con); |
ef416fc2 | 671 | } |
672 | ||
673 | return (partial); | |
674 | } | |
675 | ||
676 | ||
d09495fa | 677 | /* |
678 | * 'cupsdFlushHeader()' - Flush the header fields to the client. | |
679 | */ | |
680 | ||
07725fee | 681 | int /* I - Bytes written or -1 on error */ |
d09495fa | 682 | cupsdFlushHeader(cupsd_client_t *con) /* I - Client to flush to */ |
683 | { | |
07725fee | 684 | int bytes = httpFlushWrite(HTTP(con)); |
d09495fa | 685 | |
686 | con->http.data_encoding = HTTP_ENCODE_LENGTH; | |
07725fee | 687 | |
688 | return (bytes); | |
d09495fa | 689 | } |
690 | ||
691 | ||
ef416fc2 | 692 | /* |
693 | * 'cupsdReadClient()' - Read data from a client. | |
694 | */ | |
695 | ||
696 | int /* O - 1 on success, 0 on error */ | |
697 | cupsdReadClient(cupsd_client_t *con) /* I - Client to read from */ | |
698 | { | |
699 | char line[32768], /* Line from client... */ | |
700 | operation[64], /* Operation code from socket */ | |
701 | version[64], /* HTTP version number string */ | |
702 | locale[64], /* Locale */ | |
703 | *ptr; /* Pointer into strings */ | |
704 | int major, minor; /* HTTP version numbers */ | |
705 | http_status_t status; /* Transfer status */ | |
706 | ipp_state_t ipp_state; /* State of IPP transfer */ | |
707 | int bytes; /* Number of bytes to POST */ | |
708 | char *filename; /* Name of file for GET/HEAD */ | |
709 | char buf[1024]; /* Buffer for real filename */ | |
710 | struct stat filestats; /* File information */ | |
711 | mime_type_t *type; /* MIME type of file */ | |
712 | cupsd_printer_t *p; /* Printer */ | |
713 | static unsigned request_id = 0; /* Request ID for temp files */ | |
714 | ||
715 | ||
716 | status = HTTP_CONTINUE; | |
717 | ||
718 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
719 | "cupsdReadClient: %d, used=%d, file=%d state=%d", | |
720 | con->http.fd, con->http.used, con->file, con->http.state); | |
721 | ||
722 | if (con->http.error) | |
723 | { | |
724 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: http error seen..."); | |
725 | return (cupsdCloseClient(con)); | |
726 | } | |
727 | ||
728 | #ifdef HAVE_SSL | |
729 | if (con->auto_ssl) | |
730 | { | |
731 | /* | |
732 | * Automatically check for a SSL/TLS handshake... | |
733 | */ | |
734 | ||
735 | con->auto_ssl = 0; | |
736 | ||
737 | if (recv(con->http.fd, buf, 1, MSG_PEEK) == 1 && | |
738 | (!buf[0] || !strchr("DGHOPT", buf[0]))) | |
739 | { | |
740 | /* | |
741 | * Encrypt this connection... | |
742 | */ | |
743 | ||
744 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
745 | "cupsdReadClient: Saw first byte %02X, auto-negotiating SSL/TLS session...", | |
746 | buf[0] & 255); | |
747 | ||
e1d6a774 | 748 | encrypt_client(con); |
ef416fc2 | 749 | return (1); |
750 | } | |
751 | } | |
752 | #endif /* HAVE_SSL */ | |
753 | ||
754 | switch (con->http.state) | |
755 | { | |
756 | case HTTP_WAITING : | |
757 | /* | |
758 | * See if we've received a request line... | |
759 | */ | |
760 | ||
761 | if (httpGets(line, sizeof(line) - 1, HTTP(con)) == NULL) | |
762 | { | |
763 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
764 | "cupsdReadClient: httpGets returned EOF..."); | |
765 | return (cupsdCloseClient(con)); | |
766 | } | |
767 | ||
768 | /* | |
769 | * Ignore blank request lines... | |
770 | */ | |
771 | ||
772 | if (line[0] == '\0') | |
773 | break; | |
774 | ||
775 | /* | |
776 | * Clear other state variables... | |
777 | */ | |
778 | ||
779 | httpClearFields(HTTP(con)); | |
780 | ||
781 | con->http.activity = time(NULL); | |
782 | con->http.version = HTTP_1_0; | |
783 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
784 | con->http.data_encoding = HTTP_ENCODE_LENGTH; | |
785 | con->http.data_remaining = 0; | |
786 | con->http._data_remaining = 0; | |
787 | con->operation = HTTP_WAITING; | |
788 | con->bytes = 0; | |
789 | con->file = -1; | |
790 | con->file_ready = 0; | |
791 | con->pipe_pid = 0; | |
792 | con->username[0] = '\0'; | |
793 | con->password[0] = '\0'; | |
794 | con->uri[0] = '\0'; | |
795 | ||
796 | cupsdClearString(&con->command); | |
797 | cupsdClearString(&con->options); | |
798 | ||
2abf387c | 799 | if (con->request) |
800 | { | |
801 | ippDelete(con->request); | |
802 | con->request = NULL; | |
803 | } | |
804 | ||
805 | if (con->response) | |
806 | { | |
807 | ippDelete(con->response); | |
808 | con->response = NULL; | |
809 | } | |
810 | ||
811 | if (con->language) | |
ef416fc2 | 812 | { |
813 | cupsLangFree(con->language); | |
814 | con->language = NULL; | |
815 | } | |
816 | ||
817 | /* | |
818 | * Grab the request line... | |
819 | */ | |
820 | ||
821 | switch (sscanf(line, "%63s%1023s%63s", operation, con->uri, version)) | |
822 | { | |
823 | case 1 : | |
824 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
825 | "Bad request line \"%s\" from %s!", line, | |
826 | con->http.hostname); | |
827 | cupsdSendError(con, HTTP_BAD_REQUEST); | |
828 | return (cupsdCloseClient(con)); | |
829 | case 2 : | |
830 | con->http.version = HTTP_0_9; | |
831 | break; | |
832 | case 3 : | |
833 | if (sscanf(version, "HTTP/%d.%d", &major, &minor) != 2) | |
834 | { | |
835 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
836 | "Bad request line \"%s\" from %s!", line, | |
837 | con->http.hostname); | |
838 | cupsdSendError(con, HTTP_BAD_REQUEST); | |
839 | return (cupsdCloseClient(con)); | |
840 | } | |
841 | ||
842 | if (major < 2) | |
843 | { | |
844 | con->http.version = (http_version_t)(major * 100 + minor); | |
845 | if (con->http.version == HTTP_1_1 && KeepAlive) | |
846 | con->http.keep_alive = HTTP_KEEPALIVE_ON; | |
847 | else | |
848 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
849 | } | |
850 | else | |
851 | { | |
852 | cupsdSendError(con, HTTP_NOT_SUPPORTED); | |
853 | return (cupsdCloseClient(con)); | |
854 | } | |
855 | break; | |
856 | } | |
857 | ||
858 | /* | |
859 | * Handle full URLs in the request line... | |
860 | */ | |
861 | ||
862 | if (strcmp(con->uri, "*")) | |
863 | { | |
864 | char method[HTTP_MAX_URI], /* Method/scheme */ | |
865 | userpass[HTTP_MAX_URI], /* Username:password */ | |
866 | hostname[HTTP_MAX_URI], /* Hostname */ | |
867 | resource[HTTP_MAX_URI]; /* Resource path */ | |
868 | int port; /* Port number */ | |
869 | ||
870 | ||
871 | /* | |
872 | * Separate the URI into its components... | |
873 | */ | |
874 | ||
a4d04587 | 875 | httpSeparateURI(HTTP_URI_CODING_MOST, con->uri, |
876 | method, sizeof(method), | |
ef416fc2 | 877 | userpass, sizeof(userpass), |
878 | hostname, sizeof(hostname), &port, | |
879 | resource, sizeof(resource)); | |
880 | ||
881 | /* | |
882 | * Only allow URIs with the servername, localhost, or an IP | |
883 | * address... | |
884 | */ | |
885 | ||
886 | if (strcmp(method, "file") && | |
887 | strcasecmp(hostname, ServerName) && | |
888 | strcasecmp(hostname, "localhost") && | |
889 | !isdigit(hostname[0])) | |
890 | { | |
891 | /* | |
892 | * Nope, we don't do proxies... | |
893 | */ | |
894 | ||
895 | cupsdLogMessage(CUPSD_LOG_ERROR, "Bad URI \"%s\" in request!", | |
896 | con->uri); | |
897 | cupsdSendError(con, HTTP_METHOD_NOT_ALLOWED); | |
898 | return (cupsdCloseClient(con)); | |
899 | } | |
900 | ||
901 | /* | |
902 | * Copy the resource portion back into the URI; both resource and | |
903 | * con->uri are HTTP_MAX_URI bytes in size... | |
904 | */ | |
905 | ||
906 | strcpy(con->uri, resource); | |
907 | } | |
908 | ||
909 | /* | |
910 | * Process the request... | |
911 | */ | |
912 | ||
913 | if (!strcmp(operation, "GET")) | |
914 | con->http.state = HTTP_GET; | |
915 | else if (!strcmp(operation, "PUT")) | |
916 | con->http.state = HTTP_PUT; | |
917 | else if (!strcmp(operation, "POST")) | |
918 | con->http.state = HTTP_POST; | |
919 | else if (!strcmp(operation, "DELETE")) | |
920 | con->http.state = HTTP_DELETE; | |
921 | else if (!strcmp(operation, "TRACE")) | |
922 | con->http.state = HTTP_TRACE; | |
923 | else if (!strcmp(operation, "OPTIONS")) | |
924 | con->http.state = HTTP_OPTIONS; | |
925 | else if (!strcmp(operation, "HEAD")) | |
926 | con->http.state = HTTP_HEAD; | |
927 | else | |
928 | { | |
929 | cupsdLogMessage(CUPSD_LOG_ERROR, "Bad operation \"%s\"!", operation); | |
930 | cupsdSendError(con, HTTP_BAD_REQUEST); | |
931 | return (cupsdCloseClient(con)); | |
932 | } | |
933 | ||
934 | con->start = time(NULL); | |
935 | con->operation = con->http.state; | |
936 | ||
89d46774 | 937 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdReadClient: %d %s %s HTTP/%d.%d", |
938 | con->http.fd, operation, con->uri, | |
ef416fc2 | 939 | con->http.version / 100, con->http.version % 100); |
940 | ||
941 | con->http.status = HTTP_OK; | |
942 | ||
943 | case HTTP_OPTIONS : | |
944 | case HTTP_DELETE : | |
945 | case HTTP_GET : | |
946 | case HTTP_HEAD : | |
947 | case HTTP_POST : | |
948 | case HTTP_PUT : | |
949 | case HTTP_TRACE : | |
950 | /* | |
951 | * Parse incoming parameters until the status changes... | |
952 | */ | |
953 | ||
954 | status = httpUpdate(HTTP(con)); | |
955 | ||
956 | if (status != HTTP_OK && status != HTTP_CONTINUE) | |
957 | { | |
958 | cupsdSendError(con, HTTP_BAD_REQUEST); | |
959 | return (cupsdCloseClient(con)); | |
960 | } | |
961 | break; | |
962 | ||
963 | default : | |
964 | break; /* Anti-compiler-warning-code */ | |
965 | } | |
966 | ||
967 | /* | |
968 | * Handle new transfers... | |
969 | */ | |
970 | ||
971 | if (status == HTTP_OK) | |
972 | { | |
973 | if (con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE][0]) | |
974 | { | |
975 | /* | |
976 | * Figure out the locale from the Accept-Language and Content-Type | |
977 | * fields... | |
978 | */ | |
979 | ||
980 | if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ',')) != NULL) | |
981 | *ptr = '\0'; | |
982 | ||
983 | if ((ptr = strchr(con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ';')) != NULL) | |
984 | *ptr = '\0'; | |
985 | ||
986 | if ((ptr = strstr(con->http.fields[HTTP_FIELD_CONTENT_TYPE], "charset=")) != NULL) | |
987 | { | |
988 | /* | |
989 | * Combine language and charset, and trim any extra params in the | |
990 | * content-type. | |
991 | */ | |
992 | ||
993 | snprintf(locale, sizeof(locale), "%s.%s", | |
994 | con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], ptr + 8); | |
995 | ||
996 | if ((ptr = strchr(locale, ',')) != NULL) | |
997 | *ptr = '\0'; | |
998 | } | |
999 | else | |
1000 | snprintf(locale, sizeof(locale), "%s.%s", | |
1001 | con->http.fields[HTTP_FIELD_ACCEPT_LANGUAGE], DefaultCharset); | |
d6ae789d | 1002 | |
89d46774 | 1003 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
1004 | "cupsdReadClient: %d Browser asked for language \"%s\"...", | |
1005 | con->http.fd, locale); | |
1006 | ||
ef416fc2 | 1007 | con->language = cupsLangGet(locale); |
1008 | } | |
1009 | else | |
1010 | con->language = cupsLangGet(DefaultLocale); | |
1011 | ||
1012 | cupsdAuthorize(con); | |
1013 | ||
1014 | if (!strncmp(con->http.fields[HTTP_FIELD_CONNECTION], "Keep-Alive", 10) && | |
1015 | KeepAlive) | |
1016 | con->http.keep_alive = HTTP_KEEPALIVE_ON; | |
1017 | ||
1018 | if (!con->http.fields[HTTP_FIELD_HOST][0] && | |
1019 | con->http.version >= HTTP_1_1) | |
1020 | { | |
1021 | /* | |
1022 | * HTTP/1.1 and higher require the "Host:" field... | |
1023 | */ | |
1024 | ||
1025 | if (!cupsdSendError(con, HTTP_BAD_REQUEST)) | |
1026 | return (cupsdCloseClient(con)); | |
1027 | } | |
1028 | else if (con->operation == HTTP_OPTIONS) | |
1029 | { | |
1030 | /* | |
1031 | * Do OPTIONS command... | |
1032 | */ | |
1033 | ||
1034 | if (con->best && con->best->type != AUTH_NONE) | |
1035 | { | |
1036 | if (!cupsdSendHeader(con, HTTP_UNAUTHORIZED, NULL)) | |
1037 | return (cupsdCloseClient(con)); | |
1038 | } | |
1039 | ||
1040 | if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") && | |
1041 | con->http.tls == NULL) | |
1042 | { | |
1043 | #ifdef HAVE_SSL | |
1044 | /* | |
1045 | * Do encryption stuff... | |
1046 | */ | |
1047 | ||
1048 | if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL)) | |
1049 | return (cupsdCloseClient(con)); | |
1050 | ||
1051 | httpPrintf(HTTP(con), "Connection: Upgrade\r\n"); | |
1052 | httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n"); | |
1053 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1054 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1055 | |
1056 | if (cupsdFlushHeader(con) < 0) | |
1057 | return (cupsdCloseClient(con)); | |
ef416fc2 | 1058 | |
e1d6a774 | 1059 | encrypt_client(con); |
ef416fc2 | 1060 | #else |
1061 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED)) | |
1062 | return (cupsdCloseClient(con)); | |
1063 | #endif /* HAVE_SSL */ | |
1064 | } | |
1065 | ||
ef416fc2 | 1066 | if (!cupsdSendHeader(con, HTTP_OK, NULL)) |
1067 | return (cupsdCloseClient(con)); | |
1068 | ||
1069 | httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n"); | |
1070 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1071 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1072 | |
1073 | if (cupsdFlushHeader(con) < 0) | |
1074 | return (cupsdCloseClient(con)); | |
ef416fc2 | 1075 | } |
1076 | else if (!is_path_absolute(con->uri)) | |
1077 | { | |
1078 | /* | |
1079 | * Protect against malicious users! | |
1080 | */ | |
1081 | ||
1082 | if (!cupsdSendError(con, HTTP_FORBIDDEN)) | |
1083 | return (cupsdCloseClient(con)); | |
1084 | } | |
1085 | else | |
1086 | { | |
1087 | if (!strcasecmp(con->http.fields[HTTP_FIELD_CONNECTION], "Upgrade") && | |
1088 | con->http.tls == NULL) | |
1089 | { | |
1090 | #ifdef HAVE_SSL | |
1091 | /* | |
1092 | * Do encryption stuff... | |
1093 | */ | |
1094 | ||
1095 | if (!cupsdSendHeader(con, HTTP_SWITCHING_PROTOCOLS, NULL)) | |
1096 | return (cupsdCloseClient(con)); | |
1097 | ||
1098 | httpPrintf(HTTP(con), "Connection: Upgrade\r\n"); | |
1099 | httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n"); | |
1100 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1101 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1102 | |
1103 | if (cupsdFlushHeader(con) < 0) | |
1104 | return (cupsdCloseClient(con)); | |
ef416fc2 | 1105 | |
e1d6a774 | 1106 | encrypt_client(con); |
ef416fc2 | 1107 | #else |
1108 | if (!cupsdSendError(con, HTTP_NOT_IMPLEMENTED)) | |
1109 | return (cupsdCloseClient(con)); | |
1110 | #endif /* HAVE_SSL */ | |
1111 | } | |
1112 | ||
1113 | if ((status = cupsdIsAuthorized(con, NULL)) != HTTP_OK) | |
1114 | { | |
1115 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1116 | "cupsdReadClient: Unauthorized request for %s...\n", | |
1117 | con->uri); | |
1118 | cupsdSendError(con, status); | |
1119 | return (cupsdCloseClient(con)); | |
1120 | } | |
1121 | ||
b423cd4c | 1122 | if (con->http.expect && |
1123 | (con->operation == HTTP_POST || con->operation == HTTP_PUT)) | |
ef416fc2 | 1124 | { |
b423cd4c | 1125 | if (con->http.expect == HTTP_CONTINUE) |
1126 | { | |
1127 | /* | |
1128 | * Send 100-continue header... | |
1129 | */ | |
1130 | ||
1131 | if (!cupsdSendHeader(con, HTTP_CONTINUE, NULL)) | |
1132 | return (cupsdCloseClient(con)); | |
1133 | } | |
1134 | else | |
1135 | { | |
1136 | /* | |
1137 | * Send 417-expectation-failed header... | |
1138 | */ | |
1139 | ||
1140 | if (!cupsdSendHeader(con, HTTP_EXPECTATION_FAILED, NULL)) | |
1141 | return (cupsdCloseClient(con)); | |
1142 | ||
1143 | httpPrintf(HTTP(con), "Content-Length: 0\r\n"); | |
1144 | httpPrintf(HTTP(con), "\r\n"); | |
07725fee | 1145 | |
1146 | if (cupsdFlushHeader(con) < 0) | |
1147 | return (cupsdCloseClient(con)); | |
b423cd4c | 1148 | } |
ef416fc2 | 1149 | } |
1150 | ||
1151 | switch (con->http.state) | |
1152 | { | |
1153 | case HTTP_GET_SEND : | |
1154 | if (!strncmp(con->uri, "/printers/", 10) && | |
1155 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1156 | { | |
1157 | /* | |
1158 | * Send PPD file - get the real printer name since printer | |
1159 | * names are not case sensitive but filenames can be... | |
1160 | */ | |
1161 | ||
1162 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1163 | ||
1164 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1165 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1166 | else | |
1167 | { | |
1168 | if (!cupsdSendError(con, HTTP_NOT_FOUND)) | |
1169 | return (cupsdCloseClient(con)); | |
1170 | ||
1171 | break; | |
1172 | } | |
1173 | } | |
1174 | ||
1175 | if ((!strncmp(con->uri, "/admin", 6) && | |
1176 | strncmp(con->uri, "/admin/conf/", 12) && | |
1177 | strncmp(con->uri, "/admin/log/", 11)) || | |
1178 | !strncmp(con->uri, "/printers", 9) || | |
1179 | !strncmp(con->uri, "/classes", 8) || | |
1180 | !strncmp(con->uri, "/help", 5) || | |
1181 | !strncmp(con->uri, "/jobs", 5)) | |
1182 | { | |
1183 | /* | |
1184 | * Send CGI output... | |
1185 | */ | |
1186 | ||
1187 | if (!strncmp(con->uri, "/admin", 6)) | |
1188 | { | |
1189 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1190 | ServerBin); | |
1191 | ||
b423cd4c | 1192 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1193 | } |
1194 | else if (!strncmp(con->uri, "/printers", 9)) | |
1195 | { | |
1196 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1197 | ServerBin); | |
b423cd4c | 1198 | |
1199 | if (con->uri[9] && con->uri[10]) | |
1200 | cupsdSetString(&con->options, con->uri + 9); | |
1201 | else | |
1202 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1203 | } |
1204 | else if (!strncmp(con->uri, "/classes", 8)) | |
1205 | { | |
1206 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1207 | ServerBin); | |
b423cd4c | 1208 | |
1209 | if (con->uri[8] && con->uri[9]) | |
1210 | cupsdSetString(&con->options, con->uri + 8); | |
1211 | else | |
1212 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1213 | } |
1214 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1215 | { | |
1216 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1217 | ServerBin); | |
b423cd4c | 1218 | |
1219 | if (con->uri[5] && con->uri[6]) | |
1220 | cupsdSetString(&con->options, con->uri + 5); | |
1221 | else | |
1222 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1223 | } |
1224 | else | |
1225 | { | |
1226 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1227 | ServerBin); | |
ef416fc2 | 1228 | |
b423cd4c | 1229 | if (con->uri[5] && con->uri[6]) |
1230 | cupsdSetString(&con->options, con->uri + 5); | |
1231 | else | |
1232 | cupsdSetString(&con->options, NULL); | |
1233 | } | |
ef416fc2 | 1234 | |
1235 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1236 | { | |
1237 | if (!cupsdSendError(con, HTTP_NOT_FOUND)) | |
1238 | return (cupsdCloseClient(con)); | |
1239 | } | |
1240 | else | |
1241 | cupsdLogRequest(con, HTTP_OK); | |
1242 | ||
1243 | if (con->http.version <= HTTP_1_0) | |
1244 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1245 | } | |
1246 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1247 | (strchr(con->uri + 12, '/') || | |
1248 | strlen(con->uri) == 12)) || | |
1249 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1250 | (strchr(con->uri + 11, '/') || | |
1251 | strlen(con->uri) == 11))) | |
1252 | { | |
1253 | /* | |
1254 | * GET can only be done to configuration files under | |
1255 | * /admin/conf... | |
1256 | */ | |
1257 | ||
1258 | if (!cupsdSendError(con, HTTP_FORBIDDEN)) | |
1259 | return (cupsdCloseClient(con)); | |
1260 | ||
1261 | break; | |
1262 | } | |
1263 | else | |
1264 | { | |
1265 | /* | |
1266 | * Serve a file... | |
1267 | */ | |
1268 | ||
1269 | if ((filename = get_file(con, &filestats, buf, | |
1270 | sizeof(buf))) == NULL) | |
1271 | { | |
1272 | if (!cupsdSendError(con, HTTP_NOT_FOUND)) | |
1273 | return (cupsdCloseClient(con)); | |
1274 | ||
1275 | break; | |
1276 | } | |
1277 | ||
4400e98d | 1278 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1279 | |
e1d6a774 | 1280 | if (is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1281 | { |
1282 | /* | |
1283 | * Note: con->command and con->options were set by | |
e1d6a774 | 1284 | * is_cgi()... |
ef416fc2 | 1285 | */ |
1286 | ||
1287 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1288 | { | |
1289 | if (!cupsdSendError(con, HTTP_NOT_FOUND)) | |
1290 | return (cupsdCloseClient(con)); | |
1291 | } | |
1292 | else | |
1293 | cupsdLogRequest(con, HTTP_OK); | |
1294 | ||
1295 | if (con->http.version <= HTTP_1_0) | |
1296 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1297 | break; | |
1298 | } | |
1299 | ||
1300 | if (!check_if_modified(con, &filestats)) | |
1301 | { | |
1302 | if (!cupsdSendError(con, HTTP_NOT_MODIFIED)) | |
1303 | return (cupsdCloseClient(con)); | |
1304 | } | |
1305 | else | |
1306 | { | |
1307 | if (type == NULL) | |
1308 | strcpy(line, "text/plain"); | |
1309 | else | |
1310 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1311 | ||
a74454a7 | 1312 | if (!write_file(con, HTTP_OK, filename, line, &filestats)) |
ef416fc2 | 1313 | return (cupsdCloseClient(con)); |
1314 | } | |
1315 | } | |
1316 | break; | |
1317 | ||
1318 | case HTTP_POST_RECV : | |
1319 | /* | |
1320 | * See if the POST request includes a Content-Length field, and if | |
1321 | * so check the length against any limits that are set... | |
1322 | */ | |
1323 | ||
1324 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "POST %s", con->uri); | |
1325 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s", | |
1326 | con->http.fields[HTTP_FIELD_CONTENT_TYPE]); | |
1327 | ||
1328 | if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && | |
1329 | MaxRequestSize > 0 && | |
1330 | con->http.data_remaining > MaxRequestSize) | |
1331 | { | |
1332 | /* | |
1333 | * Request too large... | |
1334 | */ | |
1335 | ||
1336 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1337 | return (cupsdCloseClient(con)); | |
1338 | ||
1339 | break; | |
1340 | } | |
1341 | else if (con->http.data_remaining < 0) | |
1342 | { | |
1343 | /* | |
1344 | * Negative content lengths are invalid! | |
1345 | */ | |
1346 | ||
1347 | if (!cupsdSendError(con, HTTP_BAD_REQUEST)) | |
1348 | return (cupsdCloseClient(con)); | |
1349 | ||
1350 | break; | |
1351 | } | |
1352 | ||
1353 | /* | |
1354 | * See what kind of POST request this is; for IPP requests the | |
1355 | * content-type field will be "application/ipp"... | |
1356 | */ | |
1357 | ||
1358 | if (!strcmp(con->http.fields[HTTP_FIELD_CONTENT_TYPE], | |
1359 | "application/ipp")) | |
1360 | con->request = ippNew(); | |
1361 | else if ((!strncmp(con->uri, "/admin", 6) && | |
1362 | strncmp(con->uri, "/admin/conf/", 12) && | |
1363 | strncmp(con->uri, "/admin/log/", 11)) || | |
1364 | !strncmp(con->uri, "/printers", 9) || | |
1365 | !strncmp(con->uri, "/classes", 8) || | |
1366 | !strncmp(con->uri, "/help", 5) || | |
1367 | !strncmp(con->uri, "/jobs", 5)) | |
1368 | { | |
1369 | /* | |
1370 | * CGI request... | |
1371 | */ | |
1372 | ||
1373 | if (!strncmp(con->uri, "/admin", 6)) | |
1374 | { | |
1375 | cupsdSetStringf(&con->command, "%s/cgi-bin/admin.cgi", | |
1376 | ServerBin); | |
1377 | ||
b423cd4c | 1378 | cupsdSetString(&con->options, strchr(con->uri + 6, '?')); |
ef416fc2 | 1379 | } |
1380 | else if (!strncmp(con->uri, "/printers", 9)) | |
1381 | { | |
1382 | cupsdSetStringf(&con->command, "%s/cgi-bin/printers.cgi", | |
1383 | ServerBin); | |
b423cd4c | 1384 | |
1385 | if (con->uri[9] && con->uri[10]) | |
1386 | cupsdSetString(&con->options, con->uri + 9); | |
1387 | else | |
1388 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1389 | } |
1390 | else if (!strncmp(con->uri, "/classes", 8)) | |
1391 | { | |
1392 | cupsdSetStringf(&con->command, "%s/cgi-bin/classes.cgi", | |
1393 | ServerBin); | |
b423cd4c | 1394 | |
1395 | if (con->uri[8] && con->uri[9]) | |
1396 | cupsdSetString(&con->options, con->uri + 8); | |
1397 | else | |
1398 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1399 | } |
1400 | else if (!strncmp(con->uri, "/jobs", 5)) | |
1401 | { | |
1402 | cupsdSetStringf(&con->command, "%s/cgi-bin/jobs.cgi", | |
1403 | ServerBin); | |
b423cd4c | 1404 | |
1405 | if (con->uri[5] && con->uri[6]) | |
1406 | cupsdSetString(&con->options, con->uri + 5); | |
1407 | else | |
1408 | cupsdSetString(&con->options, NULL); | |
ef416fc2 | 1409 | } |
1410 | else | |
1411 | { | |
1412 | cupsdSetStringf(&con->command, "%s/cgi-bin/help.cgi", | |
1413 | ServerBin); | |
ef416fc2 | 1414 | |
b423cd4c | 1415 | if (con->uri[5] && con->uri[6]) |
1416 | cupsdSetString(&con->options, con->uri + 5); | |
1417 | else | |
1418 | cupsdSetString(&con->options, NULL); | |
1419 | } | |
ef416fc2 | 1420 | |
1421 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
b423cd4c | 1422 | "cupsdReadClient: %d command=\"%s\", " |
1423 | "options = \"%s\"", | |
f301802f | 1424 | con->http.fd, con->command, |
1425 | con->options ? con->options : "(null)"); | |
ef416fc2 | 1426 | |
1427 | if (con->http.version <= HTTP_1_0) | |
1428 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
1429 | } | |
1430 | else | |
1431 | { | |
1432 | /* | |
1433 | * POST to a file... | |
1434 | */ | |
1435 | ||
1436 | if ((filename = get_file(con, &filestats, buf, | |
1437 | sizeof(buf))) == NULL) | |
1438 | { | |
1439 | if (!cupsdSendError(con, HTTP_NOT_FOUND)) | |
1440 | return (cupsdCloseClient(con)); | |
1441 | ||
1442 | break; | |
1443 | } | |
1444 | ||
4400e98d | 1445 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1446 | |
e1d6a774 | 1447 | if (!is_cgi(con, filename, &filestats, type)) |
ef416fc2 | 1448 | { |
1449 | /* | |
1450 | * Only POST to CGI's... | |
1451 | */ | |
1452 | ||
1453 | if (!cupsdSendError(con, HTTP_UNAUTHORIZED)) | |
1454 | return (cupsdCloseClient(con)); | |
1455 | } | |
1456 | } | |
1457 | break; | |
1458 | ||
1459 | case HTTP_PUT_RECV : | |
1460 | /* | |
1461 | * Validate the resource name... | |
1462 | */ | |
1463 | ||
1464 | if (strncmp(con->uri, "/admin/conf/", 12) || | |
1465 | strchr(con->uri + 12, '/') || | |
1466 | strlen(con->uri) == 12) | |
1467 | { | |
1468 | /* | |
1469 | * PUT can only be done to configuration files under | |
1470 | * /admin/conf... | |
1471 | */ | |
1472 | ||
1473 | if (!cupsdSendError(con, HTTP_FORBIDDEN)) | |
1474 | return (cupsdCloseClient(con)); | |
1475 | ||
1476 | break; | |
1477 | } | |
1478 | ||
1479 | /* | |
1480 | * See if the PUT request includes a Content-Length field, and if | |
1481 | * so check the length against any limits that are set... | |
1482 | */ | |
1483 | ||
1484 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "PUT %s", con->uri); | |
1485 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "CONTENT_TYPE = %s", | |
1486 | con->http.fields[HTTP_FIELD_CONTENT_TYPE]); | |
1487 | ||
1488 | if (con->http.fields[HTTP_FIELD_CONTENT_LENGTH][0] && | |
1489 | MaxRequestSize > 0 && | |
1490 | con->http.data_remaining > MaxRequestSize) | |
1491 | { | |
1492 | /* | |
1493 | * Request too large... | |
1494 | */ | |
1495 | ||
1496 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1497 | return (cupsdCloseClient(con)); | |
1498 | ||
1499 | break; | |
1500 | } | |
1501 | else if (con->http.data_remaining < 0) | |
1502 | { | |
1503 | /* | |
1504 | * Negative content lengths are invalid! | |
1505 | */ | |
1506 | ||
1507 | if (!cupsdSendError(con, HTTP_BAD_REQUEST)) | |
1508 | return (cupsdCloseClient(con)); | |
1509 | ||
1510 | break; | |
1511 | } | |
1512 | ||
1513 | /* | |
1514 | * Open a temporary file to hold the request... | |
1515 | */ | |
1516 | ||
1517 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, | |
1518 | request_id ++); | |
1519 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); | |
1520 | ||
1521 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1522 | "cupsdReadClient: %d REQUEST %s=%d", con->http.fd, | |
1523 | con->filename, con->file); | |
1524 | ||
1525 | if (con->file < 0) | |
1526 | { | |
1527 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1528 | return (cupsdCloseClient(con)); | |
1529 | } | |
1530 | ||
1531 | fchmod(con->file, 0640); | |
1532 | fchown(con->file, RunUser, Group); | |
1533 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1534 | break; | |
1535 | ||
1536 | case HTTP_DELETE : | |
1537 | case HTTP_TRACE : | |
1538 | cupsdSendError(con, HTTP_NOT_IMPLEMENTED); | |
1539 | return (cupsdCloseClient(con)); | |
1540 | ||
1541 | case HTTP_HEAD : | |
1542 | if (!strncmp(con->uri, "/printers/", 10) && | |
1543 | !strcmp(con->uri + strlen(con->uri) - 4, ".ppd")) | |
1544 | { | |
1545 | /* | |
1546 | * Send PPD file - get the real printer name since printer | |
1547 | * names are not case sensitive but filenames can be... | |
1548 | */ | |
1549 | ||
1550 | con->uri[strlen(con->uri) - 4] = '\0'; /* Drop ".ppd" */ | |
1551 | ||
1552 | if ((p = cupsdFindPrinter(con->uri + 10)) != NULL) | |
1553 | snprintf(con->uri, sizeof(con->uri), "/ppd/%s.ppd", p->name); | |
1554 | else | |
1555 | { | |
1556 | if (!cupsdSendError(con, HTTP_NOT_FOUND)) | |
1557 | return (cupsdCloseClient(con)); | |
1558 | ||
1559 | break; | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | if ((!strncmp(con->uri, "/admin", 6) && | |
1564 | strncmp(con->uri, "/admin/conf/", 12) && | |
1565 | strncmp(con->uri, "/admin/log/", 11)) || | |
1566 | !strncmp(con->uri, "/printers", 9) || | |
1567 | !strncmp(con->uri, "/classes", 8) || | |
1568 | !strncmp(con->uri, "/help", 5) || | |
1569 | !strncmp(con->uri, "/jobs", 5)) | |
1570 | { | |
1571 | /* | |
1572 | * CGI output... | |
1573 | */ | |
1574 | ||
1575 | if (!cupsdSendHeader(con, HTTP_OK, "text/html")) | |
1576 | return (cupsdCloseClient(con)); | |
1577 | ||
1578 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
1579 | return (cupsdCloseClient(con)); | |
1580 | ||
07725fee | 1581 | if (cupsdFlushHeader(con) < 0) |
1582 | return (cupsdCloseClient(con)); | |
d09495fa | 1583 | |
ef416fc2 | 1584 | cupsdLogRequest(con, HTTP_OK); |
1585 | } | |
1586 | else if ((!strncmp(con->uri, "/admin/conf/", 12) && | |
1587 | (strchr(con->uri + 12, '/') || | |
1588 | strlen(con->uri) == 12)) || | |
1589 | (!strncmp(con->uri, "/admin/log/", 11) && | |
1590 | (strchr(con->uri + 11, '/') || | |
1591 | strlen(con->uri) == 11))) | |
1592 | { | |
1593 | /* | |
1594 | * HEAD can only be done to configuration files under | |
1595 | * /admin/conf... | |
1596 | */ | |
1597 | ||
1598 | if (!cupsdSendError(con, HTTP_FORBIDDEN)) | |
1599 | return (cupsdCloseClient(con)); | |
1600 | ||
1601 | break; | |
1602 | } | |
1603 | else if ((filename = get_file(con, &filestats, buf, | |
1604 | sizeof(buf))) == NULL) | |
1605 | { | |
1606 | if (!cupsdSendHeader(con, HTTP_NOT_FOUND, "text/html")) | |
1607 | return (cupsdCloseClient(con)); | |
1608 | ||
1609 | cupsdLogRequest(con, HTTP_NOT_FOUND); | |
1610 | } | |
1611 | else if (!check_if_modified(con, &filestats)) | |
1612 | { | |
1613 | if (!cupsdSendError(con, HTTP_NOT_MODIFIED)) | |
1614 | return (cupsdCloseClient(con)); | |
1615 | ||
1616 | cupsdLogRequest(con, HTTP_NOT_MODIFIED); | |
1617 | } | |
1618 | else | |
1619 | { | |
1620 | /* | |
1621 | * Serve a file... | |
1622 | */ | |
1623 | ||
4400e98d | 1624 | type = mimeFileType(MimeDatabase, filename, NULL, NULL); |
ef416fc2 | 1625 | if (type == NULL) |
1626 | strcpy(line, "text/plain"); | |
1627 | else | |
1628 | snprintf(line, sizeof(line), "%s/%s", type->super, type->type); | |
1629 | ||
1630 | if (!cupsdSendHeader(con, HTTP_OK, line)) | |
1631 | return (cupsdCloseClient(con)); | |
1632 | ||
1633 | if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n", | |
1634 | httpGetDateString(filestats.st_mtime)) < 0) | |
1635 | return (cupsdCloseClient(con)); | |
1636 | ||
1637 | if (httpPrintf(HTTP(con), "Content-Length: %lu\r\n", | |
1638 | (unsigned long)filestats.st_size) < 0) | |
1639 | return (cupsdCloseClient(con)); | |
1640 | ||
1641 | cupsdLogRequest(con, HTTP_OK); | |
1642 | } | |
1643 | ||
1644 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
1645 | return (cupsdCloseClient(con)); | |
1646 | ||
07725fee | 1647 | if (cupsdFlushHeader(con) < 0) |
1648 | return (cupsdCloseClient(con)); | |
d09495fa | 1649 | |
ef416fc2 | 1650 | con->http.state = HTTP_WAITING; |
1651 | break; | |
1652 | ||
1653 | default : | |
1654 | break; /* Anti-compiler-warning-code */ | |
1655 | } | |
1656 | } | |
1657 | } | |
1658 | ||
1659 | /* | |
1660 | * Handle any incoming data... | |
1661 | */ | |
1662 | ||
1663 | switch (con->http.state) | |
1664 | { | |
1665 | case HTTP_PUT_RECV : | |
1666 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1667 | "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_%s, " | |
1668 | "con->data_remaining=" CUPS_LLFMT ", con->file=%d", | |
1669 | con->http.fd, | |
1670 | con->http.data_encoding == HTTP_ENCODE_CHUNKED ? | |
1671 | "CHUNKED" : "LENGTH", | |
1672 | CUPS_LLCAST con->http.data_remaining, con->file); | |
1673 | ||
a4d04587 | 1674 | if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0) |
ef416fc2 | 1675 | return (cupsdCloseClient(con)); |
1676 | else if (bytes > 0) | |
1677 | { | |
1678 | con->bytes += bytes; | |
1679 | ||
1680 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1681 | "cupsdReadClient: %d writing %d bytes to %d", | |
1682 | con->http.fd, bytes, con->file); | |
1683 | ||
1684 | if (write(con->file, line, bytes) < bytes) | |
1685 | { | |
1686 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1687 | "cupsdReadClient: Unable to write %d bytes to %s: %s", | |
1688 | bytes, con->filename, strerror(errno)); | |
1689 | ||
1690 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1691 | "cupsdReadClient: Closing data file %d...", | |
1692 | con->file); | |
1693 | ||
1694 | close(con->file); | |
1695 | con->file = -1; | |
1696 | unlink(con->filename); | |
1697 | cupsdClearString(&con->filename); | |
1698 | ||
1699 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1700 | return (cupsdCloseClient(con)); | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | if (con->http.state == HTTP_WAITING) | |
1705 | { | |
1706 | /* | |
1707 | * End of file, see how big it is... | |
1708 | */ | |
1709 | ||
1710 | fstat(con->file, &filestats); | |
1711 | ||
1712 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1713 | "cupsdReadClient: %d Closing data file %d, size=" | |
1714 | CUPS_LLFMT ".", | |
1715 | con->http.fd, con->file, | |
1716 | CUPS_LLCAST filestats.st_size); | |
1717 | ||
1718 | close(con->file); | |
1719 | con->file = -1; | |
1720 | ||
1721 | if (filestats.st_size > MaxRequestSize && | |
1722 | MaxRequestSize > 0) | |
1723 | { | |
1724 | /* | |
1725 | * Request is too big; remove it and send an error... | |
1726 | */ | |
1727 | ||
1728 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1729 | "cupsdReadClient: %d Removing temp file %s", | |
1730 | con->http.fd, con->filename); | |
1731 | unlink(con->filename); | |
1732 | cupsdClearString(&con->filename); | |
1733 | ||
1734 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1735 | return (cupsdCloseClient(con)); | |
1736 | } | |
1737 | ||
1738 | /* | |
1739 | * Install the configuration file... | |
1740 | */ | |
1741 | ||
1742 | status = install_conf_file(con); | |
1743 | ||
1744 | /* | |
1745 | * Return the status to the client... | |
1746 | */ | |
1747 | ||
1748 | if (!cupsdSendError(con, status)) | |
1749 | return (cupsdCloseClient(con)); | |
1750 | } | |
1751 | break; | |
1752 | ||
1753 | case HTTP_POST_RECV : | |
1754 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1755 | "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_" | |
1756 | "%s, con->data_remaining=" CUPS_LLFMT ", con->file=%d", | |
1757 | con->http.fd, | |
1758 | con->http.data_encoding == HTTP_ENCODE_CHUNKED ? | |
1759 | "CHUNKED" : "LENGTH", | |
1760 | CUPS_LLCAST con->http.data_remaining, con->file); | |
1761 | ||
2abf387c | 1762 | if (con->request) |
ef416fc2 | 1763 | { |
1764 | /* | |
1765 | * Grab any request data from the connection... | |
1766 | */ | |
1767 | ||
1768 | if ((ipp_state = ippRead(&(con->http), con->request)) == IPP_ERROR) | |
1769 | { | |
1770 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1771 | "cupsdReadClient: %d IPP Read Error!", | |
1772 | con->http.fd); | |
1773 | ||
1774 | cupsdSendError(con, HTTP_BAD_REQUEST); | |
1775 | return (cupsdCloseClient(con)); | |
1776 | } | |
1777 | else if (ipp_state != IPP_DATA) | |
1778 | { | |
1779 | if (con->http.state == HTTP_POST_SEND) | |
1780 | { | |
1781 | cupsdSendError(con, HTTP_BAD_REQUEST); | |
1782 | return (cupsdCloseClient(con)); | |
1783 | } | |
1784 | ||
1785 | break; | |
1786 | } | |
1787 | else | |
1788 | con->bytes += ippLength(con->request); | |
1789 | } | |
1790 | ||
1791 | if (con->file < 0 && con->http.state != HTTP_POST_SEND) | |
1792 | { | |
1793 | /* | |
1794 | * Create a file as needed for the request data... | |
1795 | */ | |
1796 | ||
1797 | cupsdSetStringf(&con->filename, "%s/%08x", RequestRoot, request_id ++); | |
1798 | con->file = open(con->filename, O_WRONLY | O_CREAT | O_TRUNC, 0640); | |
1799 | ||
1800 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdReadClient: %d REQUEST %s=%d", con->http.fd, | |
1801 | con->filename, con->file); | |
1802 | ||
1803 | if (con->file < 0) | |
1804 | { | |
1805 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1806 | return (cupsdCloseClient(con)); | |
1807 | } | |
1808 | ||
1809 | fchmod(con->file, 0640); | |
1810 | fchown(con->file, RunUser, Group); | |
1811 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1812 | } | |
1813 | ||
1814 | if (con->http.state != HTTP_POST_SEND) | |
1815 | { | |
a4d04587 | 1816 | if ((bytes = httpRead2(HTTP(con), line, sizeof(line))) < 0) |
ef416fc2 | 1817 | return (cupsdCloseClient(con)); |
1818 | else if (bytes > 0) | |
1819 | { | |
1820 | con->bytes += bytes; | |
1821 | ||
1822 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1823 | "cupsdReadClient: %d writing %d bytes to %d", | |
1824 | con->http.fd, bytes, con->file); | |
1825 | ||
1826 | if (write(con->file, line, bytes) < bytes) | |
1827 | { | |
1828 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1829 | "cupsdReadClient: Unable to write %d bytes to %s: %s", | |
1830 | bytes, con->filename, strerror(errno)); | |
1831 | ||
1832 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1833 | "cupsdReadClient: Closing file %d...", | |
1834 | con->file); | |
1835 | ||
1836 | close(con->file); | |
1837 | con->file = -1; | |
1838 | unlink(con->filename); | |
1839 | cupsdClearString(&con->filename); | |
1840 | ||
1841 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1842 | return (cupsdCloseClient(con)); | |
1843 | } | |
1844 | } | |
1845 | else if (con->http.state == HTTP_POST_RECV) | |
1846 | return (1); /* ??? */ | |
1847 | else if (con->http.state != HTTP_POST_SEND) | |
1848 | return (cupsdCloseClient(con)); | |
1849 | } | |
1850 | ||
1851 | if (con->http.state == HTTP_POST_SEND) | |
1852 | { | |
1853 | if (con->file >= 0) | |
1854 | { | |
1855 | fstat(con->file, &filestats); | |
1856 | ||
1857 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1858 | "cupsdReadClient: %d Closing data file %d, " | |
1859 | "size=" CUPS_LLFMT ".", | |
1860 | con->http.fd, con->file, | |
1861 | CUPS_LLCAST filestats.st_size); | |
1862 | ||
1863 | close(con->file); | |
1864 | con->file = -1; | |
1865 | ||
1866 | if (filestats.st_size > MaxRequestSize && | |
1867 | MaxRequestSize > 0) | |
1868 | { | |
1869 | /* | |
1870 | * Request is too big; remove it and send an error... | |
1871 | */ | |
1872 | ||
1873 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1874 | "cupsdReadClient: %d Removing temp file %s", | |
1875 | con->http.fd, con->filename); | |
1876 | unlink(con->filename); | |
1877 | cupsdClearString(&con->filename); | |
1878 | ||
1879 | if (con->request) | |
1880 | { | |
1881 | /* | |
1882 | * Delete any IPP request data... | |
1883 | */ | |
1884 | ||
1885 | ippDelete(con->request); | |
1886 | con->request = NULL; | |
1887 | } | |
1888 | ||
1889 | if (!cupsdSendError(con, HTTP_REQUEST_TOO_LARGE)) | |
1890 | return (cupsdCloseClient(con)); | |
1891 | } | |
1892 | ||
1893 | if (con->command) | |
1894 | { | |
1895 | if (!cupsdSendCommand(con, con->command, con->options, 0)) | |
1896 | { | |
1897 | if (!cupsdSendError(con, HTTP_NOT_FOUND)) | |
1898 | return (cupsdCloseClient(con)); | |
1899 | } | |
1900 | else | |
1901 | cupsdLogRequest(con, HTTP_OK); | |
1902 | } | |
1903 | } | |
1904 | ||
1905 | if (con->request) | |
1906 | return (cupsdProcessIPPRequest(con)); | |
1907 | } | |
1908 | break; | |
1909 | ||
1910 | default : | |
1911 | break; /* Anti-compiler-warning-code */ | |
1912 | } | |
1913 | ||
1914 | if (!con->http.keep_alive && con->http.state == HTTP_WAITING) | |
1915 | return (cupsdCloseClient(con)); | |
1916 | else | |
1917 | return (1); | |
1918 | } | |
1919 | ||
1920 | ||
1921 | /* | |
1922 | * 'cupsdSendCommand()' - Send output from a command via HTTP. | |
1923 | */ | |
1924 | ||
1925 | int /* O - 1 on success, 0 on failure */ | |
1926 | cupsdSendCommand( | |
1927 | cupsd_client_t *con, /* I - Client connection */ | |
1928 | char *command, /* I - Command to run */ | |
1929 | char *options, /* I - Command-line options */ | |
1930 | int root) /* I - Run as root? */ | |
1931 | { | |
1932 | int fd; /* Standard input file descriptor */ | |
1933 | ||
1934 | ||
1935 | if (con->filename) | |
ed486911 | 1936 | { |
ef416fc2 | 1937 | fd = open(con->filename, O_RDONLY); |
ef416fc2 | 1938 | |
ed486911 | 1939 | if (fd < 0) |
1940 | { | |
1941 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
1942 | "cupsdSendCommand: %d Unable to open \"%s\" for reading: %s", | |
1943 | con->http.fd, con->filename ? con->filename : "/dev/null", | |
1944 | strerror(errno)); | |
1945 | return (0); | |
1946 | } | |
ef416fc2 | 1947 | |
ed486911 | 1948 | fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); |
1949 | } | |
1950 | else | |
1951 | fd = -1; | |
ef416fc2 | 1952 | |
1953 | con->pipe_pid = pipe_command(con, fd, &(con->file), command, options, root); | |
1954 | ||
ed486911 | 1955 | if (fd >= 0) |
1956 | close(fd); | |
ef416fc2 | 1957 | |
1958 | cupsdLogMessage(CUPSD_LOG_INFO, "Started \"%s\" (pid=%d)", command, | |
1959 | con->pipe_pid); | |
1960 | ||
1961 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendCommand: %d file=%d", | |
1962 | con->http.fd, con->file); | |
1963 | ||
1964 | if (con->pipe_pid == 0) | |
1965 | return (0); | |
1966 | ||
1967 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
1968 | ||
1969 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1970 | "cupsdSendCommand: Adding fd %d to InputSet...", con->file); | |
1971 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
1972 | "cupsdSendCommand: Adding fd %d to OutputSet...", | |
1973 | con->http.fd); | |
1974 | ||
1975 | FD_SET(con->file, InputSet); | |
1976 | FD_SET(con->http.fd, OutputSet); | |
1977 | ||
1978 | con->sent_header = 0; | |
1979 | con->file_ready = 0; | |
1980 | con->got_fields = 0; | |
1981 | con->field_col = 0; | |
1982 | ||
1983 | return (1); | |
1984 | } | |
1985 | ||
1986 | ||
1987 | /* | |
1988 | * 'cupsdSendError()' - Send an error message via HTTP. | |
1989 | */ | |
1990 | ||
1991 | int /* O - 1 if successful, 0 otherwise */ | |
1992 | cupsdSendError(cupsd_client_t *con, /* I - Connection */ | |
1993 | http_status_t code) /* I - Error code */ | |
1994 | { | |
4744bd90 | 1995 | #ifdef HAVE_SSL |
1996 | /* | |
1997 | * Force client to upgrade for authentication if that is how the | |
1998 | * server is configured... | |
1999 | */ | |
2000 | ||
2001 | if (code == HTTP_UNAUTHORIZED && | |
2002 | DefaultEncryption == HTTP_ENCRYPT_REQUIRED && | |
2003 | strcasecmp(con->http.hostname, "localhost") && | |
2004 | !con->http.tls) | |
2005 | { | |
2006 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2007 | "cupsdSendError: Encryption before authentication!"); | |
2008 | code = HTTP_UPGRADE_REQUIRED; | |
2009 | } | |
2010 | #endif /* HAVE_SSL */ | |
2011 | ||
ef416fc2 | 2012 | /* |
2013 | * Put the request in the access_log file... | |
2014 | */ | |
2015 | ||
2016 | cupsdLogRequest(con, code); | |
2017 | ||
2018 | cupsdLogMessage(CUPSD_LOG_DEBUG, "cupsdSendError: %d code=%d (%s)", | |
2019 | con->http.fd, code, httpStatus(code)); | |
2020 | ||
2021 | /* | |
2022 | * To work around bugs in some proxies, don't use Keep-Alive for some | |
2023 | * error messages... | |
2024 | */ | |
2025 | ||
2026 | if (code >= HTTP_BAD_REQUEST) | |
2027 | con->http.keep_alive = HTTP_KEEPALIVE_OFF; | |
2028 | ||
2029 | /* | |
2030 | * Send an error message back to the client. If the error code is a | |
2031 | * 400 or 500 series, make sure the message contains some text, too! | |
2032 | */ | |
2033 | ||
2034 | if (!cupsdSendHeader(con, code, NULL)) | |
2035 | return (0); | |
2036 | ||
2037 | #ifdef HAVE_SSL | |
2038 | if (code == HTTP_UPGRADE_REQUIRED) | |
2039 | if (httpPrintf(HTTP(con), "Connection: Upgrade\r\n") < 0) | |
2040 | return (0); | |
2041 | ||
2042 | if (httpPrintf(HTTP(con), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0) | |
2043 | return (0); | |
2044 | #endif /* HAVE_SSL */ | |
2045 | ||
2046 | if ((con->http.version >= HTTP_1_1 && !con->http.keep_alive) || | |
2047 | (code >= HTTP_BAD_REQUEST && code != HTTP_UPGRADE_REQUIRED)) | |
2048 | { | |
2049 | if (httpPrintf(HTTP(con), "Connection: close\r\n") < 0) | |
2050 | return (0); | |
2051 | } | |
2052 | ||
2053 | if (code >= HTTP_BAD_REQUEST) | |
2054 | { | |
2055 | /* | |
2056 | * Send a human-readable error message. | |
2057 | */ | |
2058 | ||
80ca4592 | 2059 | char message[4096], /* Message for user */ |
2060 | urltext[1024], /* URL redirection text */ | |
2061 | redirect[1024]; /* Redirection link */ | |
ef416fc2 | 2062 | const char *text; /* Status-specific text */ |
2063 | ||
80ca4592 | 2064 | |
2065 | redirect[0] = '\0'; | |
2066 | ||
ef416fc2 | 2067 | if (code == HTTP_UNAUTHORIZED) |
2068 | text = _cupsLangString(con->language, | |
2069 | _("Enter your username and password or the " | |
2070 | "root username and password to access this " | |
2071 | "page.")); | |
2072 | else if (code == HTTP_UPGRADE_REQUIRED) | |
80ca4592 | 2073 | { |
2074 | text = urltext; | |
2075 | ||
2076 | snprintf(urltext, sizeof(urltext), | |
2077 | _cupsLangString(con->language, | |
2078 | _("You must access this page using the URL " | |
2079 | "<A HREF=\"https://%s:%d%s\">" | |
2080 | "https://%s:%d%s</A>.")), | |
2081 | con->servername, con->serverport, con->uri, | |
2082 | con->servername, con->serverport, con->uri); | |
2083 | ||
2084 | snprintf(redirect, sizeof(redirect), | |
2085 | "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"3;https://%s:%d%s\">\n", | |
2086 | con->servername, con->serverport, con->uri); | |
2087 | } | |
ef416fc2 | 2088 | else |
2089 | text = ""; | |
2090 | ||
2091 | snprintf(message, sizeof(message), | |
2092 | "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" " | |
2093 | "\"http://www.w3.org/TR/REC-html40/loose.dtd\">\n" | |
2094 | "<HTML>\n" | |
2095 | "<HEAD>\n" | |
2096 | "\t<META HTTP-EQUIV=\"Content-Type\" " | |
2097 | "CONTENT=\"text/html; charset=utf-8\">\n" | |
2098 | "\t<TITLE>%d %s</TITLE>\n" | |
2099 | "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" " | |
2100 | "HREF=\"/cups.css\">\n" | |
80ca4592 | 2101 | "%s" |
ef416fc2 | 2102 | "</HEAD>\n" |
2103 | "<BODY>\n" | |
2104 | "<H1>%d %s</H1>\n" | |
2105 | "<P>%s</P>\n" | |
2106 | "</BODY>\n" | |
2107 | "</HTML>\n", | |
80ca4592 | 2108 | code, httpStatus(code), redirect, code, httpStatus(code), text); |
ef416fc2 | 2109 | |
2110 | if (httpPrintf(HTTP(con), "Content-Type: text/html; charset=utf-8\r\n") < 0) | |
2111 | return (0); | |
2112 | if (httpPrintf(HTTP(con), "Content-Length: %d\r\n", | |
2113 | (int)strlen(message)) < 0) | |
2114 | return (0); | |
2115 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
2116 | return (0); | |
2117 | if (httpPrintf(HTTP(con), "%s", message) < 0) | |
2118 | return (0); | |
2119 | } | |
2120 | else if (httpPrintf(HTTP(con), "\r\n") < 0) | |
2121 | return (0); | |
2122 | ||
07725fee | 2123 | if (cupsdFlushHeader(con) < 0) |
2124 | return (0); | |
d09495fa | 2125 | |
ef416fc2 | 2126 | con->http.state = HTTP_WAITING; |
2127 | ||
2128 | return (1); | |
2129 | } | |
2130 | ||
2131 | ||
ef416fc2 | 2132 | /* |
2133 | * 'cupsdSendHeader()' - Send an HTTP request. | |
2134 | */ | |
2135 | ||
2136 | int /* O - 1 on success, 0 on failure */ | |
2137 | cupsdSendHeader(cupsd_client_t *con, /* I - Client to send to */ | |
2138 | http_status_t code, /* I - HTTP status code */ | |
2139 | char *type) /* I - MIME type of document */ | |
2140 | { | |
4744bd90 | 2141 | /* |
2142 | * Send the HTTP status header... | |
2143 | */ | |
2144 | ||
b423cd4c | 2145 | if (code == HTTP_CONTINUE) |
2146 | { | |
4744bd90 | 2147 | /* |
2148 | * 100-continue doesn't send any headers... | |
2149 | */ | |
2150 | ||
07725fee | 2151 | return (httpPrintf(HTTP(con), "HTTP/%d.%d 100 Continue\r\n\r\n", |
2152 | con->http.version / 100, con->http.version % 100) > 0); | |
b423cd4c | 2153 | } |
2154 | ||
07725fee | 2155 | httpFlushWrite(HTTP(con)); |
2156 | ||
2157 | con->http.data_encoding = HTTP_ENCODE_FIELDS; | |
2158 | ||
2159 | if (httpPrintf(HTTP(con), "HTTP/%d.%d %d %s\r\n", con->http.version / 100, | |
2160 | con->http.version % 100, code, httpStatus(code)) < 0) | |
2161 | return (0); | |
ef416fc2 | 2162 | if (httpPrintf(HTTP(con), "Date: %s\r\n", httpGetDateString(time(NULL))) < 0) |
2163 | return (0); | |
2164 | if (ServerHeader) | |
2165 | if (httpPrintf(HTTP(con), "Server: %s\r\n", ServerHeader) < 0) | |
2166 | return (0); | |
2167 | if (con->http.keep_alive && con->http.version >= HTTP_1_0) | |
2168 | { | |
2169 | if (httpPrintf(HTTP(con), "Connection: Keep-Alive\r\n") < 0) | |
2170 | return (0); | |
2171 | if (httpPrintf(HTTP(con), "Keep-Alive: timeout=%d\r\n", | |
2172 | KeepAliveTimeout) < 0) | |
2173 | return (0); | |
2174 | } | |
2175 | if (code == HTTP_METHOD_NOT_ALLOWED) | |
2176 | if (httpPrintf(HTTP(con), "Allow: GET, HEAD, OPTIONS, POST\r\n") < 0) | |
2177 | return (0); | |
2178 | ||
2179 | if (code == HTTP_UNAUTHORIZED) | |
2180 | { | |
2181 | int auth_type; /* Authentication type */ | |
2182 | ||
2183 | ||
2184 | if (!con->best || con->best->type == AUTH_NONE) | |
2185 | auth_type = DefaultAuthType; | |
2186 | else | |
2187 | auth_type = con->best->type; | |
2188 | ||
2189 | if (auth_type != AUTH_DIGEST) | |
2190 | { | |
2191 | if (httpPrintf(HTTP(con), | |
2192 | "WWW-Authenticate: Basic realm=\"CUPS\"\r\n") < 0) | |
2193 | return (0); | |
2194 | } | |
2195 | else | |
2196 | { | |
2197 | if (httpPrintf(HTTP(con), | |
2198 | "WWW-Authenticate: Digest realm=\"CUPS\", nonce=\"%s\"\r\n", | |
2199 | con->http.hostname) < 0) | |
2200 | return (0); | |
2201 | } | |
2202 | } | |
2203 | ||
e1d6a774 | 2204 | if (con->language && strcmp(con->language->language, "C")) |
ef416fc2 | 2205 | { |
2206 | if (httpPrintf(HTTP(con), "Content-Language: %s\r\n", | |
2207 | con->language->language) < 0) | |
2208 | return (0); | |
2209 | } | |
2210 | ||
e1d6a774 | 2211 | if (type) |
ef416fc2 | 2212 | { |
2213 | if (!strcmp(type, "text/html")) | |
2214 | { | |
2215 | if (httpPrintf(HTTP(con), | |
2216 | "Content-Type: text/html; charset=utf-8\r\n") < 0) | |
2217 | return (0); | |
2218 | } | |
2219 | else if (httpPrintf(HTTP(con), "Content-Type: %s\r\n", type) < 0) | |
2220 | return (0); | |
2221 | } | |
2222 | ||
2223 | return (1); | |
2224 | } | |
2225 | ||
2226 | ||
2227 | /* | |
2228 | * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs. | |
2229 | */ | |
2230 | ||
2231 | void | |
2232 | cupsdUpdateCGI(void) | |
2233 | { | |
2234 | char *ptr, /* Pointer to end of line in buffer */ | |
2235 | message[1024]; /* Pointer to message text */ | |
2236 | int loglevel; /* Log level for message */ | |
2237 | ||
2238 | ||
2239 | while ((ptr = cupsdStatBufUpdate(CGIStatusBuffer, &loglevel, | |
2240 | message, sizeof(message))) != NULL) | |
2241 | if (!strchr(CGIStatusBuffer->buffer, '\n')) | |
2242 | break; | |
2243 | ||
d09495fa | 2244 | if (ptr == NULL && !CGIStatusBuffer->bufused) |
ef416fc2 | 2245 | { |
2246 | /* | |
2247 | * Fatal error on pipe - should never happen! | |
2248 | */ | |
2249 | ||
2250 | cupsdLogMessage(CUPSD_LOG_CRIT, | |
2251 | "cupsdUpdateCGI: error reading from CGI error pipe - %s", | |
2252 | strerror(errno)); | |
2253 | } | |
2254 | } | |
2255 | ||
2256 | ||
2257 | /* | |
2258 | * 'cupsdWriteClient()' - Write data to a client as needed. | |
2259 | */ | |
2260 | ||
2261 | int /* O - 1 if success, 0 if fail */ | |
2262 | cupsdWriteClient(cupsd_client_t *con) /* I - Client connection */ | |
2263 | { | |
2264 | int bytes; /* Number of bytes written */ | |
2265 | char buf[16385]; /* Data buffer */ | |
2266 | char *bufptr; /* Pointer into buffer */ | |
2267 | ipp_state_t ipp_state; /* IPP state value */ | |
2268 | ||
2269 | ||
2270 | #ifdef DEBUG | |
2271 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2272 | "cupsdWriteClient(con=%p) %d response=%p, file=%d " | |
2273 | "pipe_pid=%d state=%d", | |
2274 | con, con->http.fd, con->response, con->file, con->pipe_pid, | |
2275 | con->http.state); | |
2276 | #endif /* DEBUG */ | |
2277 | ||
2278 | if (con->http.state != HTTP_GET_SEND && | |
2279 | con->http.state != HTTP_POST_SEND) | |
2280 | return (1); | |
2281 | ||
2abf387c | 2282 | if (con->response) |
ef416fc2 | 2283 | { |
07725fee | 2284 | ipp_state = ippWrite(HTTP(con), con->response); |
ef416fc2 | 2285 | bytes = ipp_state != IPP_ERROR && ipp_state != IPP_DATA; |
2286 | } | |
2287 | else if ((bytes = read(con->file, buf, sizeof(buf) - 1)) > 0) | |
2288 | { | |
2289 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2290 | "cupsdWriteClient: Read %d bytes from file %d...", | |
2291 | bytes, con->file); | |
2292 | ||
2293 | if (con->pipe_pid && !con->got_fields) | |
2294 | { | |
2295 | /* | |
2296 | * Inspect the data for Content-Type and other fields. | |
2297 | */ | |
2298 | ||
2299 | buf[bytes] = '\0'; | |
2300 | ||
2301 | for (bufptr = buf; !con->got_fields && *bufptr; bufptr ++) | |
2302 | if (*bufptr == '\n') | |
2303 | { | |
2304 | /* | |
2305 | * Send line to client... | |
2306 | */ | |
2307 | ||
2308 | if (bufptr > buf && bufptr[-1] == '\r') | |
2309 | bufptr[-1] = '\0'; | |
2310 | *bufptr++ = '\0'; | |
2311 | ||
2312 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "Script header: %s", buf); | |
2313 | ||
2314 | if (!con->sent_header) | |
2315 | { | |
2316 | /* | |
2317 | * Handle redirection and CGI status codes... | |
2318 | */ | |
2319 | ||
2320 | if (!strncasecmp(buf, "Location:", 9)) | |
d6ae789d | 2321 | { |
ef416fc2 | 2322 | cupsdSendHeader(con, HTTP_SEE_OTHER, NULL); |
07725fee | 2323 | con->sent_header = 2; |
2324 | ||
d6ae789d | 2325 | if (httpPrintf(HTTP(con), "Content-Length: 0\r\n") < 0) |
2326 | return (0); | |
2327 | } | |
ef416fc2 | 2328 | else if (!strncasecmp(buf, "Status:", 7)) |
07725fee | 2329 | { |
d09495fa | 2330 | cupsdSendError(con, (http_status_t)atoi(buf + 7)); |
07725fee | 2331 | con->sent_header = 2; |
2332 | } | |
ef416fc2 | 2333 | else |
4744bd90 | 2334 | { |
ef416fc2 | 2335 | cupsdSendHeader(con, HTTP_OK, NULL); |
07725fee | 2336 | con->sent_header = 1; |
ef416fc2 | 2337 | |
4744bd90 | 2338 | if (con->http.version == HTTP_1_1) |
2339 | { | |
4744bd90 | 2340 | if (httpPrintf(HTTP(con), "Transfer-Encoding: chunked\r\n") < 0) |
2341 | return (0); | |
2342 | } | |
2343 | } | |
ef416fc2 | 2344 | } |
2345 | ||
2346 | if (strncasecmp(buf, "Status:", 7)) | |
2347 | httpPrintf(HTTP(con), "%s\r\n", buf); | |
2348 | ||
2349 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d %s", | |
2350 | con->http.fd, buf); | |
2351 | ||
2352 | /* | |
2353 | * Update buffer... | |
2354 | */ | |
2355 | ||
2356 | bytes -= (bufptr - buf); | |
2357 | memmove(buf, bufptr, bytes + 1); | |
2358 | bufptr = buf - 1; | |
2359 | ||
2360 | /* | |
2361 | * See if the line was empty... | |
2362 | */ | |
2363 | ||
2364 | if (con->field_col == 0) | |
d09495fa | 2365 | { |
ef416fc2 | 2366 | con->got_fields = 1; |
d09495fa | 2367 | |
07725fee | 2368 | if (cupsdFlushHeader(con) < 0) |
2369 | { | |
2370 | cupsdCloseClient(con); | |
2371 | return (0); | |
2372 | } | |
d09495fa | 2373 | |
2374 | if (con->http.version == HTTP_1_1) | |
2375 | con->http.data_encoding = HTTP_ENCODE_CHUNKED; | |
2376 | } | |
ef416fc2 | 2377 | else |
2378 | con->field_col = 0; | |
2379 | } | |
2380 | else if (*bufptr != '\r') | |
2381 | con->field_col ++; | |
2382 | ||
2383 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2384 | "cupsdWriteClient: %d bytes=%d, got_fields=%d", | |
2385 | con->http.fd, bytes, con->got_fields); | |
2386 | ||
2387 | if (bytes > 0 && !con->got_fields) | |
2388 | { | |
2389 | /* | |
2390 | * Remaining text needs to go out... | |
2391 | */ | |
2392 | ||
2393 | httpPrintf(HTTP(con), "%s", buf); | |
2394 | ||
2395 | con->http.activity = time(NULL); | |
2396 | return (1); | |
2397 | } | |
2398 | else if (bytes == 0) | |
ef416fc2 | 2399 | con->http.activity = time(NULL); |
ef416fc2 | 2400 | } |
2401 | ||
4744bd90 | 2402 | if (bytes > 0) |
ef416fc2 | 2403 | { |
4744bd90 | 2404 | if (httpWrite2(HTTP(con), buf, bytes) < 0) |
2405 | { | |
2406 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2407 | "cupsdWriteClient: %d Write of %d bytes failed!", | |
2408 | con->http.fd, bytes); | |
ef416fc2 | 2409 | |
4744bd90 | 2410 | cupsdCloseClient(con); |
2411 | return (0); | |
2412 | } | |
ef416fc2 | 2413 | |
4744bd90 | 2414 | con->bytes += bytes; |
ef416fc2 | 2415 | |
4744bd90 | 2416 | if (con->http.state == HTTP_WAITING) |
2417 | bytes = 0; | |
2418 | } | |
ef416fc2 | 2419 | } |
2420 | ||
2421 | if (bytes <= 0) | |
2422 | { | |
2423 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdWriteClient: %d bytes < 0", | |
2424 | con->http.fd); | |
2425 | ||
2426 | cupsdLogRequest(con, HTTP_OK); | |
2427 | ||
2428 | httpFlushWrite(HTTP(con)); | |
2429 | ||
07725fee | 2430 | if (con->http.data_encoding == HTTP_ENCODE_CHUNKED && con->sent_header == 1) |
ef416fc2 | 2431 | { |
07725fee | 2432 | if (httpWrite2(HTTP(con), "", 0) < 0) |
ef416fc2 | 2433 | { |
2434 | cupsdCloseClient(con); | |
2435 | return (0); | |
2436 | } | |
2437 | } | |
2438 | ||
2439 | con->http.state = HTTP_WAITING; | |
2440 | ||
2441 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2442 | "cupsdWriteClient: Removing fd %d from OutputSet...", | |
2443 | con->http.fd); | |
2444 | ||
2445 | FD_CLR(con->http.fd, OutputSet); | |
2446 | ||
2447 | if (con->file >= 0) | |
2448 | { | |
2449 | if (FD_ISSET(con->file, InputSet)) | |
2450 | { | |
2451 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2452 | "cupsdWriteClient: Removing fd %d from InputSet...", | |
2453 | con->file); | |
2454 | FD_CLR(con->file, InputSet); | |
2455 | } | |
2456 | ||
2457 | if (con->pipe_pid) | |
2458 | cupsdEndProcess(con->pipe_pid, 0); | |
2459 | ||
2460 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2461 | "cupsdWriteClient: %d Closing data file %d.", | |
2462 | con->http.fd, con->file); | |
2463 | ||
2464 | close(con->file); | |
2465 | con->file = -1; | |
2466 | con->pipe_pid = 0; | |
2467 | } | |
2468 | ||
2469 | if (con->filename) | |
2470 | { | |
2471 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2472 | "cupsdWriteClient: %d Removing temp file %s", | |
2473 | con->http.fd, con->filename); | |
2474 | unlink(con->filename); | |
2475 | cupsdClearString(&con->filename); | |
2476 | } | |
2477 | ||
2abf387c | 2478 | if (con->request) |
ef416fc2 | 2479 | { |
2480 | ippDelete(con->request); | |
2481 | con->request = NULL; | |
2482 | } | |
2483 | ||
2abf387c | 2484 | if (con->response) |
ef416fc2 | 2485 | { |
2486 | ippDelete(con->response); | |
2487 | con->response = NULL; | |
2488 | } | |
2489 | ||
2490 | cupsdClearString(&con->command); | |
2491 | cupsdClearString(&con->options); | |
2492 | ||
2493 | if (!con->http.keep_alive) | |
2494 | { | |
2495 | cupsdCloseClient(con); | |
2496 | return (0); | |
2497 | } | |
2498 | } | |
2499 | else | |
2500 | { | |
2501 | con->file_ready = 0; | |
2502 | ||
2503 | if (con->pipe_pid && !FD_ISSET(con->file, InputSet)) | |
2504 | { | |
2505 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2506 | "cupsdWriteClient: Adding fd %d to InputSet...", | |
2507 | con->file); | |
2508 | FD_SET(con->file, InputSet); | |
2509 | } | |
2510 | } | |
2511 | ||
2512 | con->http.activity = time(NULL); | |
2513 | ||
2514 | return (1); | |
2515 | } | |
2516 | ||
2517 | ||
e1d6a774 | 2518 | /* |
2519 | * 'check_if_modified()' - Decode an "If-Modified-Since" line. | |
2520 | */ | |
2521 | ||
2522 | static int /* O - 1 if modified since */ | |
2523 | check_if_modified( | |
2524 | cupsd_client_t *con, /* I - Client connection */ | |
2525 | struct stat *filestats) /* I - File information */ | |
2526 | { | |
2527 | char *ptr; /* Pointer into field */ | |
2528 | time_t date; /* Time/date value */ | |
2529 | off_t size; /* Size/length value */ | |
2530 | ||
2531 | ||
2532 | size = 0; | |
2533 | date = 0; | |
2534 | ptr = con->http.fields[HTTP_FIELD_IF_MODIFIED_SINCE]; | |
2535 | ||
2536 | if (*ptr == '\0') | |
2537 | return (1); | |
2538 | ||
2539 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2540 | "check_if_modified: %d If-Modified-Since=\"%s\"", | |
2541 | con->http.fd, ptr); | |
2542 | ||
2543 | while (*ptr != '\0') | |
2544 | { | |
2545 | while (isspace(*ptr) || *ptr == ';') | |
2546 | ptr ++; | |
2547 | ||
2548 | if (strncasecmp(ptr, "length=", 7) == 0) | |
2549 | { | |
2550 | ptr += 7; | |
2551 | size = strtoll(ptr, NULL, 10); | |
2552 | ||
2553 | while (isdigit(*ptr)) | |
2554 | ptr ++; | |
2555 | } | |
2556 | else if (isalpha(*ptr)) | |
2557 | { | |
2558 | date = httpGetDateTime(ptr); | |
2559 | while (*ptr != '\0' && *ptr != ';') | |
2560 | ptr ++; | |
2561 | } | |
e53920b9 | 2562 | else |
2563 | ptr ++; | |
e1d6a774 | 2564 | } |
2565 | ||
2566 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2567 | "check_if_modified: %d sizes=" CUPS_LLFMT "," | |
2568 | CUPS_LLFMT " dates=%d,%d", | |
2569 | con->http.fd, CUPS_LLCAST size, | |
2570 | CUPS_LLCAST filestats->st_size, (int)date, | |
2571 | (int)filestats->st_mtime); | |
2572 | ||
2573 | return ((size != filestats->st_size && size != 0) || | |
2574 | (date < filestats->st_mtime && date != 0) || | |
2575 | (size == 0 && date == 0)); | |
2576 | } | |
2577 | ||
2578 | ||
80ca4592 | 2579 | #ifdef HAVE_SSL |
e1d6a774 | 2580 | /* |
2581 | * 'encrypt_client()' - Enable encryption for the client... | |
2582 | */ | |
2583 | ||
2584 | static int /* O - 1 on success, 0 on error */ | |
2585 | encrypt_client(cupsd_client_t *con) /* I - Client to encrypt */ | |
2586 | { | |
80ca4592 | 2587 | # ifdef HAVE_LIBSSL |
e1d6a774 | 2588 | SSL_CTX *context; /* Context for encryption */ |
2589 | SSL *conn; /* Connection for encryption */ | |
2590 | unsigned long error; /* Error code */ | |
2591 | ||
2592 | ||
8ca02f3c | 2593 | /* |
2594 | * Verify that we have a certificate... | |
2595 | */ | |
2596 | ||
2597 | if (access(ServerKey, 0) || access(ServerCertificate, 0)) | |
2598 | { | |
2599 | /* | |
2600 | * Nope, make a self-signed certificate... | |
2601 | */ | |
2602 | ||
2603 | if (!make_certificate()) | |
2604 | return (0); | |
2605 | } | |
2606 | ||
e1d6a774 | 2607 | /* |
2608 | * Create the SSL context and accept the connection... | |
2609 | */ | |
2610 | ||
2611 | context = SSL_CTX_new(SSLv23_server_method()); | |
2612 | ||
2613 | SSL_CTX_set_options(context, SSL_OP_NO_SSLv2); /* Only use SSLv3 or TLS */ | |
2614 | SSL_CTX_use_PrivateKey_file(context, ServerKey, SSL_FILETYPE_PEM); | |
2615 | SSL_CTX_use_certificate_file(context, ServerCertificate, SSL_FILETYPE_PEM); | |
2616 | ||
2617 | conn = SSL_new(context); | |
2618 | ||
2619 | SSL_set_fd(conn, con->http.fd); | |
2620 | if (SSL_accept(conn) != 1) | |
2621 | { | |
2622 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2623 | "encrypt_client: Unable to encrypt connection from %s!", | |
2624 | con->http.hostname); | |
2625 | ||
2626 | while ((error = ERR_get_error()) != 0) | |
2627 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", | |
2628 | ERR_error_string(error, NULL)); | |
2629 | ||
2630 | SSL_CTX_free(context); | |
2631 | SSL_free(conn); | |
2632 | return (0); | |
2633 | } | |
2634 | ||
2635 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
2636 | "encrypt_client: %d Connection from %s now encrypted.", | |
2637 | con->http.fd, con->http.hostname); | |
2638 | ||
2639 | con->http.tls = conn; | |
2640 | return (1); | |
2641 | ||
80ca4592 | 2642 | # elif defined(HAVE_GNUTLS) |
e1d6a774 | 2643 | http_tls_t *conn; /* TLS session object */ |
2644 | int error; /* Error code */ | |
2645 | gnutls_certificate_server_credentials *credentials; | |
2646 | /* TLS credentials */ | |
2647 | ||
2648 | ||
2649 | /* | |
2650 | * Verify that we have a certificate... | |
2651 | */ | |
2652 | ||
2653 | if (access(ServerKey, 0) || access(ServerCertificate, 0)) | |
2654 | { | |
2655 | /* | |
2656 | * Nope, make a self-signed certificate... | |
2657 | */ | |
2658 | ||
8ca02f3c | 2659 | if (!make_certificate()) |
2660 | return (0); | |
e1d6a774 | 2661 | } |
2662 | ||
2663 | /* | |
2664 | * Create the SSL object and perform the SSL handshake... | |
2665 | */ | |
2666 | ||
89d46774 | 2667 | conn = (http_tls_t *)malloc(sizeof(http_tls_t)); |
e1d6a774 | 2668 | |
2669 | if (conn == NULL) | |
2670 | return (0); | |
2671 | ||
2672 | credentials = (gnutls_certificate_server_credentials *) | |
2673 | malloc(sizeof(gnutls_certificate_server_credentials)); | |
2674 | if (credentials == NULL) | |
2675 | { | |
2676 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2677 | "encrypt_client: Unable to encrypt connection from %s!", | |
2678 | con->http.hostname); | |
2679 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", strerror(errno)); | |
2680 | ||
2681 | free(conn); | |
2682 | return (0); | |
2683 | } | |
2684 | ||
2685 | gnutls_certificate_allocate_credentials(credentials); | |
2686 | gnutls_certificate_set_x509_key_file(*credentials, ServerCertificate, | |
2687 | ServerKey, GNUTLS_X509_FMT_PEM); | |
2688 | ||
2689 | gnutls_init(&(conn->session), GNUTLS_SERVER); | |
2690 | gnutls_set_default_priority(conn->session); | |
2691 | gnutls_credentials_set(conn->session, GNUTLS_CRD_CERTIFICATE, *credentials); | |
2692 | gnutls_transport_set_ptr(conn->session, | |
2693 | (gnutls_transport_ptr)((long)con->http.fd)); | |
2694 | ||
2695 | error = gnutls_handshake(conn->session); | |
2696 | ||
2697 | if (error != GNUTLS_E_SUCCESS) | |
2698 | { | |
2699 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2700 | "encrypt_client: Unable to encrypt connection from %s!", | |
2701 | con->http.hostname); | |
2702 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s", | |
2703 | gnutls_strerror(error)); | |
2704 | ||
2705 | gnutls_deinit(conn->session); | |
2706 | gnutls_certificate_free_credentials(*credentials); | |
2707 | free(conn); | |
2708 | free(credentials); | |
2709 | return (0); | |
2710 | } | |
2711 | ||
2712 | cupsdLogMessage(CUPSD_LOG_DEBUG, | |
2713 | "encrypt_client: %d Connection from %s now encrypted.", | |
2714 | con->http.fd, con->http.hostname); | |
2715 | ||
2716 | conn->credentials = credentials; | |
2717 | con->http.tls = conn; | |
2718 | return (1); | |
2719 | ||
80ca4592 | 2720 | # elif defined(HAVE_CDSASSL) |
89d46774 | 2721 | OSStatus error; /* Error code */ |
2722 | http_tls_t *conn; /* CDSA connection information */ | |
2723 | cdsa_conn_ref_t u; /* Connection reference union */ | |
e1d6a774 | 2724 | |
2725 | ||
89d46774 | 2726 | if ((conn = (http_tls_t *)malloc(sizeof(http_tls_t))) == NULL) |
2727 | return (0); | |
e1d6a774 | 2728 | |
89d46774 | 2729 | error = 0; |
2730 | conn->session = NULL; | |
2731 | conn->certsArray = get_cdsa_server_certs(); | |
e1d6a774 | 2732 | |
8ca02f3c | 2733 | if (!conn->certsArray) |
2734 | { | |
2735 | /* | |
2736 | * No keychain (yet), make a self-signed certificate... | |
2737 | */ | |
2738 | ||
2739 | if (make_certificate()) | |
2740 | conn->certsArray = get_cdsa_server_certs(); | |
2741 | } | |
2742 | ||
89d46774 | 2743 | if (!conn->certsArray) |
e1d6a774 | 2744 | { |
2745 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2746 | "EncryptClient: Could not find signing key in keychain " | |
2747 | "\"%s\"", ServerCertificate); | |
2748 | error = errSSLBadCert; /* errSSLBadConfiguration is a better choice, but not available on 10.2.x */ | |
2749 | } | |
2750 | ||
2751 | if (!error) | |
89d46774 | 2752 | error = SSLNewContext(true, &conn->session); |
e1d6a774 | 2753 | |
2754 | if (!error) | |
89d46774 | 2755 | error = SSLSetIOFuncs(conn->session, _httpReadCDSA, _httpWriteCDSA); |
2756 | ||
2757 | if (!error) | |
ed486911 | 2758 | error = SSLSetProtocolVersionEnabled(conn->session, kSSLProtocol2, false); |
e1d6a774 | 2759 | |
2760 | if (!error) | |
e53920b9 | 2761 | { |
2762 | /* | |
2763 | * Use a union to resolve warnings about int/pointer size mismatches... | |
2764 | */ | |
2765 | ||
2766 | u.connection = NULL; | |
2767 | u.sock = con->http.fd; | |
89d46774 | 2768 | error = SSLSetConnection(conn->session, u.connection); |
e53920b9 | 2769 | } |
e1d6a774 | 2770 | |
2771 | if (!error) | |
89d46774 | 2772 | error = SSLSetAllowsExpiredCerts(conn->session, true); |
e1d6a774 | 2773 | |
2774 | if (!error) | |
89d46774 | 2775 | error = SSLSetAllowsAnyRoot(conn->session, true); |
ef416fc2 | 2776 | |
89d46774 | 2777 | if (!error) |
2778 | error = SSLSetCertificate(conn->session, conn->certsArray); | |
ef416fc2 | 2779 | |
e1d6a774 | 2780 | if (!error) |
2781 | { | |
2782 | /* | |
2783 | * Perform SSL/TLS handshake | |
2784 | */ | |
ef416fc2 | 2785 | |
89d46774 | 2786 | while ((error = SSLHandshake(conn->session)) == errSSLWouldBlock) |
e1d6a774 | 2787 | usleep(1000); |
2788 | } | |
ef416fc2 | 2789 | |
e1d6a774 | 2790 | if (error) |
2791 | { | |
2792 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2793 | "encrypt_client: Unable to encrypt connection from %s!", | |
2794 | con->http.hostname); | |
ef416fc2 | 2795 | |
ed486911 | 2796 | cupsdLogMessage(CUPSD_LOG_ERROR, "encrypt_client: %s (%d)", |
2797 | cssmErrorString(error), (int)error); | |
ef416fc2 | 2798 | |
e1d6a774 | 2799 | con->http.error = error; |
2800 | con->http.status = HTTP_ERROR; | |
ef416fc2 | 2801 | |
89d46774 | 2802 | if (conn->session) |
2803 | SSLDisposeContext(conn->session); | |
2804 | ||
2805 | if (conn->certsArray) | |
2806 | CFRelease(conn->certsArray); | |
2807 | ||
2808 | free(conn); | |
ef416fc2 | 2809 | |
e1d6a774 | 2810 | return (0); |
ef416fc2 | 2811 | } |
2812 | ||
e1d6a774 | 2813 | cupsdLogMessage(CUPSD_LOG_DEBUG, |
2814 | "encrypt_client: %d Connection from %s now encrypted.", | |
2815 | con->http.fd, con->http.hostname); | |
ef416fc2 | 2816 | |
e1d6a774 | 2817 | con->http.tls = conn; |
2818 | return (1); | |
2819 | ||
80ca4592 | 2820 | # endif /* HAVE_LIBSSL */ |
ef416fc2 | 2821 | } |
80ca4592 | 2822 | #endif /* HAVE_SSL */ |
ef416fc2 | 2823 | |
2824 | ||
2825 | #ifdef HAVE_CDSASSL | |
2826 | /* | |
2827 | * 'get_cdsa_server_certs()' - Convert a keychain name into the CFArrayRef | |
2828 | * required by SSLSetCertificate. | |
2829 | * | |
2830 | * For now we assumes that there is exactly one SecIdentity in the | |
2831 | * keychain - i.e. there is exactly one matching cert/private key pair. | |
2832 | * In the future we will search a keychain for a SecIdentity matching a | |
2833 | * specific criteria. We also skip the operation of adding additional | |
2834 | * non-signing certs from the keychain to the CFArrayRef. | |
2835 | * | |
2836 | * To create a self-signed certificate for testing use the certtool. | |
2837 | * Executing the following as root will do it: | |
2838 | * | |
b423cd4c | 2839 | * certtool c k=/Library/Keychains/System.keychain |
ef416fc2 | 2840 | */ |
2841 | ||
2842 | static CFArrayRef /* O - Array of certificates */ | |
2843 | get_cdsa_server_certs(void) | |
2844 | { | |
2845 | OSStatus err; /* Error info */ | |
2846 | SecKeychainRef kcRef; /* Keychain reference */ | |
2847 | SecIdentitySearchRef srchRef; /* Search reference */ | |
2848 | SecIdentityRef identity; /* Identity */ | |
2849 | CFArrayRef ca; /* Certificate array */ | |
2850 | ||
2851 | ||
2852 | kcRef = NULL; | |
2853 | srchRef = NULL; | |
2854 | identity = NULL; | |
2855 | ca = NULL; | |
2856 | err = SecKeychainOpen(ServerCertificate, &kcRef); | |
2857 | ||
2858 | if (err) | |
2859 | cupsdLogMessage(CUPSD_LOG_ERROR, "Cannot open keychain \"%s\", error %d.", | |
2860 | ServerCertificate, (int)err); | |
2861 | else | |
2862 | { | |
2863 | /* | |
2864 | * Search for "any" identity matching specified key use; | |
2865 | * in this app, we expect there to be exactly one. | |
2866 | */ | |
2867 | ||
2868 | err = SecIdentitySearchCreate(kcRef, CSSM_KEYUSE_SIGN, &srchRef); | |
2869 | ||
2870 | if (err) | |
2871 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2872 | "Cannot find signing key in keychain \"%s\", error %d", | |
2873 | ServerCertificate, (int)err); | |
2874 | else | |
2875 | { | |
2876 | err = SecIdentitySearchCopyNext(srchRef, &identity); | |
2877 | ||
2878 | if (err) | |
2879 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
2880 | "Cannot find signing key in keychain \"%s\", error %d", | |
2881 | ServerCertificate, (int)err); | |
2882 | else | |
2883 | { | |
2884 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
2885 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
2886 | "SecIdentitySearchCopyNext CFTypeID failure!"); | |
2887 | else | |
2888 | { | |
2889 | /* | |
2890 | * Found one. Place it in a CFArray. | |
2891 | * TBD: snag other (non-identity) certs from keychain and add them | |
2892 | * to array as well. | |
2893 | */ | |
2894 | ||
b423cd4c | 2895 | ca = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks); |
ef416fc2 | 2896 | |
2897 | if (ca == nil) | |
2898 | cupsdLogMessage(CUPSD_LOG_ERROR, "CFArrayCreate error"); | |
2899 | } | |
2900 | ||
b423cd4c | 2901 | CFRelease(identity); |
ef416fc2 | 2902 | } |
2903 | ||
b423cd4c | 2904 | CFRelease(srchRef); |
ef416fc2 | 2905 | } |
2906 | ||
b423cd4c | 2907 | CFRelease(kcRef); |
ef416fc2 | 2908 | } |
2909 | ||
2910 | return (ca); | |
2911 | } | |
2912 | #endif /* HAVE_CDSASSL */ | |
2913 | ||
2914 | ||
2915 | /* | |
2916 | * 'get_file()' - Get a filename and state info. | |
2917 | */ | |
2918 | ||
2919 | static char * /* O - Real filename */ | |
2920 | get_file(cupsd_client_t *con, /* I - Client connection */ | |
2921 | struct stat *filestats, /* O - File information */ | |
2922 | char *filename, /* IO - Filename buffer */ | |
2923 | int len) /* I - Buffer length */ | |
2924 | { | |
2925 | int status; /* Status of filesystem calls */ | |
2926 | char *ptr; /* Pointer info filename */ | |
2927 | int plen; /* Remaining length after pointer */ | |
2928 | ||
2929 | ||
2930 | /* | |
2931 | * Need to add DocumentRoot global... | |
2932 | */ | |
2933 | ||
2934 | if (!strncmp(con->uri, "/ppd/", 5)) | |
2935 | snprintf(filename, len, "%s%s", ServerRoot, con->uri); | |
2936 | else if (!strncmp(con->uri, "/admin/conf/", 12)) | |
2937 | snprintf(filename, len, "%s%s", ServerRoot, con->uri + 11); | |
2938 | else if (!strncmp(con->uri, "/admin/log/", 11)) | |
2939 | { | |
2940 | if (!strcmp(con->uri + 11, "access_log") && AccessLog[0] == '/') | |
2941 | strlcpy(filename, AccessLog, len); | |
2942 | else if (!strcmp(con->uri + 11, "error_log") && ErrorLog[0] == '/') | |
2943 | strlcpy(filename, ErrorLog, len); | |
2944 | else if (!strcmp(con->uri + 11, "page_log") && PageLog[0] == '/') | |
2945 | strlcpy(filename, PageLog, len); | |
2946 | else | |
2947 | return (NULL); | |
2948 | } | |
d6ae789d | 2949 | else if (con->language) |
ef416fc2 | 2950 | snprintf(filename, len, "%s/%s%s", DocumentRoot, con->language->language, |
d6ae789d | 2951 | con->uri); |
ef416fc2 | 2952 | else |
2953 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); | |
2954 | ||
2955 | if ((ptr = strchr(filename, '?')) != NULL) | |
2956 | *ptr = '\0'; | |
2957 | ||
2958 | /* | |
2959 | * Grab the status for this language; if there isn't a language-specific file | |
2960 | * then fallback to the default one... | |
2961 | */ | |
2962 | ||
d6ae789d | 2963 | if ((status = stat(filename, filestats)) != 0 && con->language && |
2964 | strncmp(con->uri, "/ppd/", 5) && | |
2965 | strncmp(con->uri, "/admin/conf/", 12) && | |
2966 | strncmp(con->uri, "/admin/log/", 11)) | |
ef416fc2 | 2967 | { |
2968 | /* | |
d6ae789d | 2969 | * Drop the country code... |
ef416fc2 | 2970 | */ |
2971 | ||
d6ae789d | 2972 | char ll[3]; /* Short language name */ |
2973 | ||
2974 | ||
2975 | strlcpy(ll, con->language->language, sizeof(ll)); | |
2976 | snprintf(filename, len, "%s/%s%s", DocumentRoot, ll, con->uri); | |
2977 | ||
2978 | if ((ptr = strchr(filename, '?')) != NULL) | |
2979 | *ptr = '\0'; | |
2980 | ||
2981 | if ((status = stat(filename, filestats)) != 0) | |
ef416fc2 | 2982 | { |
d6ae789d | 2983 | /* |
2984 | * Drop the language prefix and try the root directory... | |
2985 | */ | |
2986 | ||
ef416fc2 | 2987 | snprintf(filename, len, "%s%s", DocumentRoot, con->uri); |
2988 | ||
2989 | if ((ptr = strchr(filename, '?')) != NULL) | |
2990 | *ptr = '\0'; | |
2991 | ||
2992 | status = stat(filename, filestats); | |
2993 | } | |
2994 | } | |
2995 | ||
2996 | /* | |
2997 | * If we're found a directory, get the index.html file instead... | |
2998 | */ | |
2999 | ||
3000 | if (!status && S_ISDIR(filestats->st_mode)) | |
3001 | { | |
3002 | if (filename[strlen(filename) - 1] != '/') | |
3003 | strlcat(filename, "/", len); | |
3004 | ||
3005 | ptr = filename + strlen(filename); | |
3006 | plen = len - (ptr - filename); | |
3007 | ||
3008 | strlcpy(ptr, "index.html", plen); | |
3009 | status = stat(filename, filestats); | |
3010 | ||
3011 | #ifdef HAVE_JAVA | |
3012 | if (status) | |
3013 | { | |
3014 | strlcpy(ptr, "index.class", plen); | |
3015 | status = stat(filename, filestats); | |
3016 | } | |
3017 | #endif /* HAVE_JAVA */ | |
3018 | ||
3019 | #ifdef HAVE_PERL | |
3020 | if (status) | |
3021 | { | |
3022 | strlcpy(ptr, "index.pl", plen); | |
3023 | status = stat(filename, filestats); | |
3024 | } | |
3025 | #endif /* HAVE_PERL */ | |
3026 | ||
3027 | #ifdef HAVE_PHP | |
3028 | if (status) | |
3029 | { | |
3030 | strlcpy(ptr, "index.php", plen); | |
3031 | status = stat(filename, filestats); | |
3032 | } | |
3033 | #endif /* HAVE_PHP */ | |
3034 | ||
3035 | #ifdef HAVE_PYTHON | |
3036 | if (status) | |
3037 | { | |
3038 | strlcpy(ptr, "index.pyc", plen); | |
3039 | status = stat(filename, filestats); | |
3040 | } | |
3041 | ||
3042 | if (status) | |
3043 | { | |
3044 | strlcpy(ptr, "index.py", plen); | |
3045 | status = stat(filename, filestats); | |
3046 | } | |
3047 | #endif /* HAVE_PYTHON */ | |
3048 | } | |
3049 | ||
3050 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "get_file: %d filename=%s size=%d", | |
3051 | con->http.fd, filename, | |
3052 | status ? -1 : (int)filestats->st_size); | |
3053 | ||
3054 | if (!status) | |
3055 | con->http.data_remaining = (int)filestats->st_size; | |
3056 | ||
3057 | if (status) | |
3058 | return (NULL); | |
3059 | else | |
3060 | return (filename); | |
3061 | } | |
3062 | ||
3063 | ||
3064 | /* | |
3065 | * 'install_conf_file()' - Install a configuration file. | |
3066 | */ | |
3067 | ||
3068 | static http_status_t /* O - Status */ | |
3069 | install_conf_file(cupsd_client_t *con) /* I - Connection */ | |
3070 | { | |
3071 | cups_file_t *in, /* Input file */ | |
3072 | *out; /* Output file */ | |
3073 | char buffer[1024]; /* Copy buffer */ | |
3074 | int bytes; /* Number of bytes */ | |
3075 | char conffile[1024], /* Configuration filename */ | |
3076 | newfile[1024], /* New config filename */ | |
3077 | oldfile[1024]; /* Old config filename */ | |
3078 | struct stat confinfo; /* Config file info */ | |
3079 | ||
3080 | ||
3081 | /* | |
3082 | * First construct the filenames... | |
3083 | */ | |
3084 | ||
3085 | snprintf(conffile, sizeof(conffile), "%s%s", ServerRoot, con->uri + 11); | |
3086 | snprintf(newfile, sizeof(newfile), "%s%s.N", ServerRoot, con->uri + 11); | |
3087 | snprintf(oldfile, sizeof(oldfile), "%s%s.O", ServerRoot, con->uri + 11); | |
3088 | ||
3089 | cupsdLogMessage(CUPSD_LOG_INFO, "Installing config file \"%s\"...", conffile); | |
3090 | ||
3091 | /* | |
3092 | * Get the owner, group, and permissions of the configuration file. | |
3093 | * If it doesn't exist, assign it to the User and Group in the | |
3094 | * cupsd.conf file with mode 0640 permissions. | |
3095 | */ | |
3096 | ||
3097 | if (stat(conffile, &confinfo)) | |
3098 | { | |
3099 | confinfo.st_uid = User; | |
3100 | confinfo.st_gid = Group; | |
3101 | confinfo.st_mode = ConfigFilePerm; | |
3102 | } | |
3103 | ||
3104 | /* | |
3105 | * Open the request file and new config file... | |
3106 | */ | |
3107 | ||
3108 | if ((in = cupsFileOpen(con->filename, "rb")) == NULL) | |
3109 | { | |
3110 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open request file \"%s\" - %s", | |
3111 | con->filename, strerror(errno)); | |
3112 | return (HTTP_SERVER_ERROR); | |
3113 | } | |
3114 | ||
3115 | if ((out = cupsFileOpen(newfile, "wb")) == NULL) | |
3116 | { | |
3117 | cupsFileClose(in); | |
3118 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to open config file \"%s\" - %s", | |
3119 | newfile, strerror(errno)); | |
3120 | return (HTTP_SERVER_ERROR); | |
3121 | } | |
3122 | ||
3123 | fchmod(cupsFileNumber(out), confinfo.st_mode); | |
3124 | fchown(cupsFileNumber(out), confinfo.st_uid, confinfo.st_gid); | |
3125 | ||
3126 | /* | |
3127 | * Copy from the request to the new config file... | |
3128 | */ | |
3129 | ||
3130 | while ((bytes = cupsFileRead(in, buffer, sizeof(buffer))) > 0) | |
3131 | if (cupsFileWrite(out, buffer, bytes) < bytes) | |
3132 | { | |
3133 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3134 | "Unable to copy to config file \"%s\" - %s", | |
3135 | newfile, strerror(errno)); | |
3136 | ||
3137 | cupsFileClose(in); | |
3138 | cupsFileClose(out); | |
3139 | unlink(newfile); | |
3140 | ||
3141 | return (HTTP_SERVER_ERROR); | |
3142 | } | |
3143 | ||
3144 | /* | |
3145 | * Close the files... | |
3146 | */ | |
3147 | ||
3148 | cupsFileClose(in); | |
3149 | if (cupsFileClose(out)) | |
3150 | { | |
3151 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3152 | "Error file closing config file \"%s\" - %s", | |
3153 | newfile, strerror(errno)); | |
3154 | ||
3155 | unlink(newfile); | |
3156 | ||
3157 | return (HTTP_SERVER_ERROR); | |
3158 | } | |
3159 | ||
3160 | /* | |
3161 | * Remove the request file... | |
3162 | */ | |
3163 | ||
3164 | unlink(con->filename); | |
3165 | cupsdClearString(&con->filename); | |
3166 | ||
3167 | /* | |
3168 | * Unlink the old backup, rename the current config file to the backup | |
3169 | * filename, and rename the new config file to the config file name... | |
3170 | */ | |
3171 | ||
3172 | if (unlink(oldfile)) | |
3173 | if (errno != ENOENT) | |
3174 | { | |
3175 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3176 | "Unable to remove backup config file \"%s\" - %s", | |
3177 | oldfile, strerror(errno)); | |
3178 | ||
3179 | unlink(newfile); | |
3180 | ||
3181 | return (HTTP_SERVER_ERROR); | |
3182 | } | |
3183 | ||
3184 | if (rename(conffile, oldfile)) | |
3185 | if (errno != ENOENT) | |
3186 | { | |
3187 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3188 | "Unable to rename old config file \"%s\" - %s", | |
3189 | conffile, strerror(errno)); | |
3190 | ||
3191 | unlink(newfile); | |
3192 | ||
3193 | return (HTTP_SERVER_ERROR); | |
3194 | } | |
3195 | ||
3196 | if (rename(newfile, conffile)) | |
3197 | { | |
3198 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3199 | "Unable to rename new config file \"%s\" - %s", | |
3200 | newfile, strerror(errno)); | |
3201 | ||
3202 | rename(oldfile, conffile); | |
3203 | unlink(newfile); | |
3204 | ||
3205 | return (HTTP_SERVER_ERROR); | |
3206 | } | |
3207 | ||
3208 | /* | |
3209 | * If the cupsd.conf file was updated, set the NeedReload flag... | |
3210 | */ | |
3211 | ||
3212 | if (!strcmp(con->uri, "/admin/conf/cupsd.conf")) | |
3213 | NeedReload = RELOAD_CUPSD; | |
3214 | else | |
3215 | NeedReload = RELOAD_ALL; | |
3216 | ||
3217 | ReloadTime = time(NULL); | |
3218 | ||
3219 | /* | |
3220 | * Return that the file was created successfully... | |
3221 | */ | |
3222 | ||
3223 | return (HTTP_CREATED); | |
3224 | } | |
3225 | ||
3226 | ||
e1d6a774 | 3227 | /* |
3228 | * 'is_cgi()' - Is the resource a CGI script/program? | |
3229 | */ | |
3230 | ||
3231 | static int /* O - 1 = CGI, 0 = file */ | |
3232 | is_cgi(cupsd_client_t *con, /* I - Client connection */ | |
3233 | const char *filename, /* I - Real filename */ | |
3234 | struct stat *filestats, /* I - File information */ | |
3235 | mime_type_t *type) /* I - MIME type */ | |
3236 | { | |
3237 | const char *options; /* Options on URL */ | |
3238 | ||
3239 | ||
3240 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3241 | "is_cgi(con=%p, filename=\"%s\", filestats=%p, type=%s/%s)\n", | |
3242 | con, filename, filestats, type ? type->super : "unknown", | |
3243 | type ? type->type : "unknown"); | |
3244 | ||
3245 | /* | |
3246 | * Get the options, if any... | |
3247 | */ | |
3248 | ||
3249 | if ((options = strchr(con->uri, '?')) != NULL) | |
3250 | options ++; | |
3251 | ||
3252 | /* | |
3253 | * Check for known types... | |
3254 | */ | |
3255 | ||
3256 | if (!type || strcasecmp(type->super, "application")) | |
3257 | { | |
3258 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0..."); | |
3259 | return (0); | |
3260 | } | |
3261 | ||
3262 | if (!strcasecmp(type->type, "x-httpd-cgi") && | |
3263 | (filestats->st_mode & 0111)) | |
3264 | { | |
3265 | /* | |
3266 | * "application/x-httpd-cgi" is a CGI script. | |
3267 | */ | |
3268 | ||
3269 | cupsdSetString(&con->command, filename); | |
3270 | ||
3271 | filename = strrchr(filename, '/') + 1; /* Filename always absolute */ | |
3272 | ||
3273 | cupsdSetString(&con->options, options); | |
3274 | ||
3275 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3276 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3277 | con->command, con->options); | |
3278 | ||
3279 | return (1); | |
3280 | } | |
3281 | #ifdef HAVE_JAVA | |
3282 | else if (!strcasecmp(type->type, "x-httpd-java")) | |
3283 | { | |
3284 | /* | |
3285 | * "application/x-httpd-java" is a Java servlet. | |
3286 | */ | |
3287 | ||
3288 | cupsdSetString(&con->command, CUPS_JAVA); | |
3289 | ||
3290 | if (options) | |
3291 | cupsdSetStringf(&con->options, "%s %s", filename, options); | |
3292 | else | |
3293 | cupsdSetString(&con->options, filename); | |
3294 | ||
3295 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3296 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3297 | con->command, con->options); | |
3298 | ||
3299 | return (1); | |
3300 | } | |
3301 | #endif /* HAVE_JAVA */ | |
3302 | #ifdef HAVE_PERL | |
3303 | else if (!strcasecmp(type->type, "x-httpd-perl")) | |
3304 | { | |
3305 | /* | |
3306 | * "application/x-httpd-perl" is a Perl page. | |
3307 | */ | |
3308 | ||
3309 | cupsdSetString(&con->command, CUPS_PERL); | |
3310 | ||
3311 | if (options) | |
3312 | cupsdSetStringf(&con->options, "%s %s", filename, options); | |
3313 | else | |
3314 | cupsdSetString(&con->options, filename); | |
3315 | ||
3316 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3317 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3318 | con->command, con->options); | |
3319 | ||
3320 | return (1); | |
3321 | } | |
3322 | #endif /* HAVE_PERL */ | |
3323 | #ifdef HAVE_PHP | |
3324 | else if (!strcasecmp(type->type, "x-httpd-php")) | |
3325 | { | |
3326 | /* | |
3327 | * "application/x-httpd-php" is a PHP page. | |
3328 | */ | |
3329 | ||
3330 | cupsdSetString(&con->command, CUPS_PHP); | |
3331 | ||
3332 | if (options) | |
3333 | cupsdSetStringf(&con->options, "%s %s", filename, options); | |
3334 | else | |
3335 | cupsdSetString(&con->options, filename); | |
3336 | ||
3337 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3338 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3339 | con->command, con->options); | |
3340 | ||
3341 | return (1); | |
3342 | } | |
3343 | #endif /* HAVE_PHP */ | |
3344 | #ifdef HAVE_PYTHON | |
3345 | else if (!strcasecmp(type->type, "x-httpd-python")) | |
3346 | { | |
3347 | /* | |
3348 | * "application/x-httpd-python" is a Python page. | |
3349 | */ | |
3350 | ||
3351 | cupsdSetString(&con->command, CUPS_PYTHON); | |
3352 | ||
3353 | if (options) | |
3354 | cupsdSetStringf(&con->options, "%s %s", filename, options); | |
3355 | else | |
3356 | cupsdSetString(&con->options, filename); | |
3357 | ||
3358 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3359 | "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"", | |
3360 | con->command, con->options); | |
3361 | ||
3362 | return (1); | |
3363 | } | |
3364 | #endif /* HAVE_PYTHON */ | |
3365 | ||
3366 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "is_cgi: Returning 0..."); | |
3367 | ||
3368 | return (0); | |
3369 | } | |
3370 | ||
3371 | ||
ef416fc2 | 3372 | /* |
3373 | * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. ".."). | |
3374 | */ | |
3375 | ||
3376 | static int /* O - 0 if relative, 1 if absolute */ | |
3377 | is_path_absolute(const char *path) /* I - Input path */ | |
3378 | { | |
3379 | /* | |
3380 | * Check for a leading slash... | |
3381 | */ | |
3382 | ||
3383 | if (path[0] != '/') | |
3384 | return (0); | |
3385 | ||
3386 | /* | |
3387 | * Check for "/.." in the path... | |
3388 | */ | |
3389 | ||
3390 | while ((path = strstr(path, "/..")) != NULL) | |
3391 | { | |
3392 | if (!path[3] || path[3] == '/') | |
3393 | return (0); | |
3394 | ||
3395 | path ++; | |
3396 | } | |
3397 | ||
3398 | /* | |
3399 | * If we haven't found any relative paths, return 1 indicating an | |
3400 | * absolute path... | |
3401 | */ | |
3402 | ||
3403 | return (1); | |
3404 | } | |
3405 | ||
3406 | ||
8ca02f3c | 3407 | #ifdef HAVE_SSL |
4744bd90 | 3408 | /* |
3409 | * 'make_certificate()' - Make a self-signed SSL/TLS certificate. | |
3410 | */ | |
3411 | ||
8ca02f3c | 3412 | static int /* O - 1 on success, 0 on failure */ |
4744bd90 | 3413 | make_certificate(void) |
3414 | { | |
8ca02f3c | 3415 | #if defined(HAVE_LIBSSL) && defined(HAVE_WAITPID) |
d09495fa | 3416 | int pid, /* Process ID of command */ |
3417 | status; /* Status of command */ | |
3418 | char command[1024], /* Command */ | |
3419 | *argv[11], /* Command-line arguments */ | |
3420 | *envp[MAX_ENV + 1], /* Environment variables */ | |
3421 | home[1024], /* HOME environment variable */ | |
3422 | infofile[1024], /* Type-in information for cert */ | |
3423 | seedfile[1024]; /* Random number seed file */ | |
3424 | int envc, /* Number of environment variables */ | |
3425 | bytes; /* Bytes written */ | |
3426 | cups_file_t *fp; /* Seed/info file */ | |
3427 | int infofd; /* Info file descriptor */ | |
8ca02f3c | 3428 | |
3429 | ||
3430 | /* | |
d09495fa | 3431 | * Run the "openssl" command to seed the random number generator and |
3432 | * generate a self-signed certificate that is good for 10 years: | |
3433 | * | |
3434 | * openssl rand -rand seedfile 1 | |
8ca02f3c | 3435 | * |
3436 | * openssl req -new -x509 -keyout ServerKey \ | |
3437 | * -out ServerCertificate -days 3650 -nodes | |
d09495fa | 3438 | * |
3439 | * The seeding step is crucial in ensuring that the openssl command | |
3440 | * does not block on systems without sufficient entropy... | |
8ca02f3c | 3441 | */ |
3442 | ||
3443 | if (!cupsFileFind("openssl", getenv("PATH"), 1, command, sizeof(command))) | |
3444 | { | |
3445 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3446 | "No SSL certificate and openssl command not found!"); | |
3447 | return (0); | |
3448 | } | |
3449 | ||
d09495fa | 3450 | if (access("/dev/urandom", 0)) |
3451 | { | |
3452 | /* | |
3453 | * If the system doesn't provide /dev/urandom, then any random source | |
3454 | * will probably be blocking-style, so generate some random data to | |
3455 | * use as a seed for the certificate. Note that we have already | |
3456 | * seeded the random number generator in cupsdInitCerts()... | |
3457 | */ | |
3458 | ||
3459 | cupsdLogMessage(CUPSD_LOG_INFO, | |
3460 | "Seeding the random number generator..."); | |
3461 | ||
3462 | snprintf(home, sizeof(home), "HOME=%s", TempDir); | |
3463 | ||
3464 | /* | |
3465 | * Write the seed file... | |
3466 | */ | |
3467 | ||
3468 | if ((fp = cupsTempFile2(seedfile, sizeof(seedfile))) == NULL) | |
3469 | { | |
3470 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create seed file %s - %s", | |
3471 | seedfile, strerror(errno)); | |
3472 | return (0); | |
3473 | } | |
3474 | ||
3475 | for (bytes = 0; bytes < 262144; bytes ++) | |
3476 | cupsFilePutChar(fp, random()); | |
3477 | ||
3478 | cupsFileClose(fp); | |
3479 | ||
3480 | /* | |
3481 | * Run the openssl command to seed its random number generator... | |
3482 | */ | |
3483 | ||
3484 | argv[0] = "openssl"; | |
3485 | argv[1] = "rand"; | |
3486 | argv[2] = "-rand"; | |
3487 | argv[3] = seedfile; | |
3488 | argv[4] = "1"; | |
3489 | argv[5] = NULL; | |
3490 | ||
3491 | envc = cupsdLoadEnv(envp, MAX_ENV); | |
3492 | envp[envc++] = home; | |
3493 | envp[envc] = NULL; | |
3494 | ||
3495 | if (!cupsdStartProcess(command, argv, envp, -1, -1, -1, -1, 1, &pid)) | |
3496 | { | |
3497 | unlink(seedfile); | |
3498 | return (0); | |
3499 | } | |
3500 | ||
3501 | while (waitpid(pid, &status, 0) < 0) | |
3502 | if (errno != EINTR) | |
3503 | { | |
3504 | status = 1; | |
3505 | break; | |
3506 | } | |
3507 | ||
3508 | cupsdFinishProcess(pid, command, sizeof(command)); | |
3509 | ||
3510 | /* | |
3511 | * Remove the seed file, as it is no longer needed... | |
3512 | */ | |
3513 | ||
3514 | unlink(seedfile); | |
3515 | ||
3516 | if (status) | |
3517 | { | |
3518 | if (WIFEXITED(status)) | |
3519 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3520 | "Unable to seed random number generator - " | |
3521 | "the openssl command stopped with status %d!", | |
3522 | WEXITSTATUS(status)); | |
3523 | else | |
3524 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3525 | "Unable to seed random number generator - " | |
3526 | "the openssl command crashed on signal %d!", | |
3527 | WTERMSIG(status)); | |
3528 | ||
3529 | return (0); | |
3530 | } | |
3531 | } | |
3532 | ||
3533 | /* | |
3534 | * Create a file with the certificate information fields... | |
3535 | * | |
3536 | * Note: This assumes that the default questions are asked by the openssl | |
3537 | * command... | |
3538 | */ | |
3539 | ||
3540 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
3541 | { | |
3542 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3543 | "Unable to create certificate information file %s - %s", | |
3544 | infofile, strerror(errno)); | |
3545 | return (0); | |
3546 | } | |
3547 | ||
3548 | cupsFilePrintf(fp, ".\n.\n.\n%s\n.\n%s\n%s\n", | |
3549 | ServerName, ServerName, ServerAdmin); | |
3550 | cupsFileClose(fp); | |
3551 | ||
8ca02f3c | 3552 | cupsdLogMessage(CUPSD_LOG_INFO, |
3553 | "Generating SSL server key and certificate..."); | |
3554 | ||
3555 | argv[0] = "openssl"; | |
3556 | argv[1] = "req"; | |
3557 | argv[2] = "-new"; | |
3558 | argv[3] = "-x509"; | |
3559 | argv[4] = "-keyout"; | |
3560 | argv[5] = ServerKey; | |
3561 | argv[6] = "-out"; | |
3562 | argv[7] = ServerCertificate; | |
3563 | argv[8] = "-days"; | |
3564 | argv[9] = "3650"; | |
3565 | argv[10] = "-nodes"; | |
3566 | argv[11] = NULL; | |
3567 | ||
3568 | cupsdLoadEnv(envp, MAX_ENV); | |
3569 | ||
d09495fa | 3570 | infofd = open(infofile, O_RDONLY); |
3571 | ||
3572 | if (!cupsdStartProcess(command, argv, envp, infofd, -1, -1, -1, 1, &pid)) | |
3573 | { | |
3574 | close(infofd); | |
3575 | unlink(infofile); | |
8ca02f3c | 3576 | return (0); |
d09495fa | 3577 | } |
3578 | ||
3579 | close(infofd); | |
3580 | unlink(infofile); | |
8ca02f3c | 3581 | |
3582 | while (waitpid(pid, &status, 0) < 0) | |
3583 | if (errno != EINTR) | |
3584 | { | |
3585 | status = 1; | |
3586 | break; | |
3587 | } | |
3588 | ||
3589 | cupsdFinishProcess(pid, command, sizeof(command)); | |
3590 | ||
3591 | if (status) | |
3592 | { | |
3593 | if (WIFEXITED(status)) | |
3594 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3595 | "Unable to create SSL server key and certificate - " | |
3596 | "the openssl command stopped with status %d!", | |
3597 | WEXITSTATUS(status)); | |
3598 | else | |
3599 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3600 | "Unable to create SSL server key and certificate - " | |
3601 | "the openssl command crashed on signal %d!", | |
3602 | WTERMSIG(status)); | |
3603 | } | |
3604 | else | |
3605 | { | |
3606 | cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...", | |
3607 | ServerKey); | |
3608 | cupsdLogMessage(CUPSD_LOG_INFO, | |
3609 | "Created SSL server certificate file \"%s\"...", | |
3610 | ServerCertificate); | |
3611 | } | |
3612 | ||
3613 | return (!status); | |
3614 | ||
3615 | #elif defined(HAVE_GNUTLS) | |
4744bd90 | 3616 | gnutls_x509_crt crt; /* Self-signed certificate */ |
3617 | gnutls_x509_privkey key; /* Encryption key */ | |
3618 | cups_lang_t *language; /* Default language info */ | |
3619 | cups_file_t *fp; /* Key/cert file */ | |
3620 | unsigned char buffer[8192]; /* Buffer for x509 data */ | |
3621 | size_t bytes; /* Number of bytes of data */ | |
3622 | unsigned char serial[4]; /* Serial number buffer */ | |
3623 | time_t curtime; /* Current time */ | |
3624 | int result; /* Result of GNU TLS calls */ | |
3625 | ||
3626 | ||
3627 | /* | |
3628 | * Create the encryption key... | |
3629 | */ | |
3630 | ||
8ca02f3c | 3631 | cupsdLogMessage(CUPSD_LOG_INFO, "Generating SSL server key..."); |
4744bd90 | 3632 | |
3633 | gnutls_x509_privkey_init(&key); | |
3634 | gnutls_x509_privkey_generate(key, GNUTLS_PK_RSA, 2048, 0); | |
3635 | ||
3636 | /* | |
3637 | * Save it... | |
3638 | */ | |
3639 | ||
3640 | bytes = sizeof(buffer); | |
3641 | ||
3642 | if ((result = gnutls_x509_privkey_export(key, GNUTLS_X509_FMT_PEM, | |
3643 | buffer, &bytes)) < 0) | |
3644 | { | |
8ca02f3c | 3645 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to export SSL server key - %s", |
4744bd90 | 3646 | gnutls_strerror(result)); |
3647 | gnutls_x509_privkey_deinit(key); | |
8ca02f3c | 3648 | return (0); |
4744bd90 | 3649 | } |
3650 | else if ((fp = cupsFileOpen(ServerKey, "w")) != NULL) | |
3651 | { | |
3652 | cupsFileWrite(fp, (char *)buffer, bytes); | |
3653 | cupsFileClose(fp); | |
3654 | ||
8ca02f3c | 3655 | cupsdLogMessage(CUPSD_LOG_INFO, "Created SSL server key file \"%s\"...", |
4744bd90 | 3656 | ServerKey); |
3657 | } | |
3658 | else | |
3659 | { | |
3660 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
8ca02f3c | 3661 | "Unable to create SSL server key file \"%s\" - %s", |
4744bd90 | 3662 | ServerKey, strerror(errno)); |
3663 | gnutls_x509_privkey_deinit(key); | |
8ca02f3c | 3664 | return (0); |
4744bd90 | 3665 | } |
3666 | ||
3667 | /* | |
3668 | * Create the self-signed certificate... | |
3669 | */ | |
3670 | ||
8ca02f3c | 3671 | cupsdLogMessage(CUPSD_LOG_INFO, "Generating self-signed SSL certificate..."); |
4744bd90 | 3672 | |
3673 | language = cupsLangDefault(); | |
3674 | curtime = time(NULL); | |
3675 | serial[0] = curtime >> 24; | |
3676 | serial[1] = curtime >> 16; | |
3677 | serial[2] = curtime >> 8; | |
3678 | serial[3] = curtime; | |
3679 | ||
3680 | gnutls_x509_crt_init(&crt); | |
3681 | if (strlen(language->language) == 5) | |
3682 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0, | |
3683 | language->language + 3, 2); | |
3684 | else | |
3685 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COUNTRY_NAME, 0, | |
3686 | "US", 2); | |
3687 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_COMMON_NAME, 0, | |
3688 | ServerName, strlen(ServerName)); | |
3689 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATION_NAME, 0, | |
3690 | ServerName, strlen(ServerName)); | |
3691 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME, | |
3692 | 0, "Unknown", 7); | |
3693 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME, 0, | |
3694 | "Unknown", 7); | |
3695 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_X520_LOCALITY_NAME, 0, | |
3696 | "Unknown", 7); | |
3697 | gnutls_x509_crt_set_dn_by_oid(crt, GNUTLS_OID_PKCS9_EMAIL, 0, | |
3698 | ServerAdmin, strlen(ServerAdmin)); | |
3699 | gnutls_x509_crt_set_key(crt, key); | |
3700 | gnutls_x509_crt_set_serial(crt, serial, sizeof(serial)); | |
3701 | gnutls_x509_crt_set_activation_time(crt, curtime); | |
3702 | gnutls_x509_crt_set_expiration_time(crt, curtime + 10 * 365 * 86400); | |
3703 | gnutls_x509_crt_set_ca_status(crt, 0); | |
3704 | gnutls_x509_crt_set_subject_alternative_name(crt, GNUTLS_SAN_DNSNAME, | |
3705 | ServerName); | |
3706 | gnutls_x509_crt_set_key_purpose_oid(crt, GNUTLS_KP_TLS_WWW_SERVER, 0); | |
3707 | gnutls_x509_crt_set_key_usage(crt, GNUTLS_KEY_KEY_ENCIPHERMENT); | |
3708 | gnutls_x509_crt_set_version(crt, 3); | |
3709 | ||
3710 | bytes = sizeof(buffer); | |
3711 | if (gnutls_x509_crt_get_key_id(crt, 0, buffer, &bytes) >= 0) | |
3712 | gnutls_x509_crt_set_subject_key_id(crt, buffer, bytes); | |
3713 | ||
3714 | gnutls_x509_crt_sign(crt, crt, key); | |
3715 | ||
3716 | /* | |
3717 | * Save it... | |
3718 | */ | |
3719 | ||
3720 | bytes = sizeof(buffer); | |
3721 | if ((result = gnutls_x509_crt_export(crt, GNUTLS_X509_FMT_PEM, | |
3722 | buffer, &bytes)) < 0) | |
3723 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
8ca02f3c | 3724 | "Unable to export SSL server certificate - %s", |
4744bd90 | 3725 | gnutls_strerror(result)); |
3726 | else if ((fp = cupsFileOpen(ServerCertificate, "w")) != NULL) | |
3727 | { | |
3728 | cupsFileWrite(fp, (char *)buffer, bytes); | |
3729 | cupsFileClose(fp); | |
3730 | ||
3731 | cupsdLogMessage(CUPSD_LOG_INFO, | |
8ca02f3c | 3732 | "Created SSL server certificate file \"%s\"...", |
4744bd90 | 3733 | ServerCertificate); |
3734 | } | |
3735 | else | |
3736 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
8ca02f3c | 3737 | "Unable to create SSL server certificate file \"%s\" - %s", |
4744bd90 | 3738 | ServerCertificate, strerror(errno)); |
3739 | ||
3740 | /* | |
3741 | * Cleanup... | |
3742 | */ | |
3743 | ||
3744 | gnutls_x509_crt_deinit(crt); | |
3745 | gnutls_x509_privkey_deinit(key); | |
8ca02f3c | 3746 | |
3747 | return (1); | |
3748 | ||
3749 | #elif defined(HAVE_CDSASSL) && defined(HAVE_WAITPID) | |
3750 | int pid, /* Process ID of command */ | |
3751 | status; /* Status of command */ | |
3752 | char command[1024], /* Command */ | |
3753 | keychain[1024], /* Keychain argument */ | |
3754 | *argv[5], /* Command-line arguments */ | |
3755 | *envp[MAX_ENV]; /* Environment variables */ | |
3756 | ||
3757 | ||
3758 | /* | |
3759 | * Run the "certtool" command to generate a self-signed certificate: | |
3760 | * | |
3761 | * certtool c Z k=ServerCertificate | |
3762 | */ | |
3763 | ||
3764 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
3765 | { | |
3766 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3767 | "No SSL certificate and certtool command not found!"); | |
3768 | return (0); | |
3769 | } | |
3770 | ||
3771 | cupsdLogMessage(CUPSD_LOG_INFO, | |
3772 | "Generating SSL server key and certificate..."); | |
3773 | ||
3774 | snprintf(keychain, sizeof(keychain), "k=%s", ServerCertificate); | |
3775 | ||
3776 | argv[0] = "certtool"; | |
3777 | argv[1] = "c"; | |
3778 | argv[2] = "Z"; | |
3779 | argv[3] = keychain; | |
3780 | argv[4] = NULL; | |
3781 | ||
3782 | cupsdLoadEnv(envp, MAX_ENV); | |
3783 | ||
3784 | if (!cupsdStartProcess(command, argv, envp, -1, -1, -1, -1, 1, &pid)) | |
3785 | return (0); | |
3786 | ||
3787 | while (waitpid(pid, &status, 0) < 0) | |
3788 | if (errno != EINTR) | |
3789 | { | |
3790 | status = 1; | |
3791 | break; | |
3792 | } | |
3793 | ||
3794 | cupsdFinishProcess(pid, command, sizeof(command)); | |
3795 | ||
3796 | if (status) | |
3797 | { | |
3798 | if (WIFEXITED(status)) | |
3799 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3800 | "Unable to create SSL server key and certificate - " | |
3801 | "the certtool command stopped with status %d!", | |
3802 | WEXITSTATUS(status)); | |
3803 | else | |
3804 | cupsdLogMessage(CUPSD_LOG_ERROR, | |
3805 | "Unable to create SSL server key and certificate - " | |
3806 | "the certtool command crashed on signal %d!", | |
3807 | WTERMSIG(status)); | |
3808 | } | |
3809 | else | |
3810 | { | |
3811 | cupsdLogMessage(CUPSD_LOG_INFO, | |
3812 | "Created SSL server certificate file \"%s\"...", | |
3813 | ServerCertificate); | |
3814 | } | |
3815 | ||
3816 | return (!status); | |
3817 | ||
3818 | #else | |
3819 | return (0); | |
3820 | #endif /* HAVE_LIBSSL && HAVE_WAITPID */ | |
4744bd90 | 3821 | } |
8ca02f3c | 3822 | #endif /* HAVE_SSL */ |
4744bd90 | 3823 | |
3824 | ||
ef416fc2 | 3825 | /* |
3826 | * 'pipe_command()' - Pipe the output of a command to the remote client. | |
3827 | */ | |
3828 | ||
3829 | static int /* O - Process ID */ | |
3830 | pipe_command(cupsd_client_t *con, /* I - Client connection */ | |
3831 | int infile, /* I - Standard input for command */ | |
3832 | int *outfile, /* O - Standard output for command */ | |
3833 | char *command, /* I - Command to run */ | |
3834 | char *options, /* I - Options for command */ | |
3835 | int root) /* I - Run as root? */ | |
3836 | { | |
3837 | int i; /* Looping var */ | |
3838 | int pid; /* Process ID */ | |
b423cd4c | 3839 | char *commptr, /* Command string pointer */ |
3840 | commch; /* Command string character */ | |
ef416fc2 | 3841 | char *uriptr; /* URI string pointer */ |
3842 | int fds[2]; /* Pipe FDs */ | |
3843 | int argc; /* Number of arguments */ | |
3844 | int envc; /* Number of environment variables */ | |
3845 | char argbuf[10240], /* Argument buffer */ | |
3846 | *argv[100], /* Argument strings */ | |
b423cd4c | 3847 | *envp[MAX_ENV + 17]; /* Environment variables */ |
ef416fc2 | 3848 | char content_length[1024], /* CONTENT_LENGTH environment variable */ |
3849 | content_type[1024], /* CONTENT_TYPE environment variable */ | |
3850 | http_cookie[32768], /* HTTP_COOKIE environment variable */ | |
3851 | http_user_agent[1024], /* HTTP_USER_AGENT environment variable */ | |
3852 | lang[1024], /* LANG environment variable */ | |
b423cd4c | 3853 | path_info[1024], /* PATH_INFO environment variable */ |
ef416fc2 | 3854 | *query_string, /* QUERY_STRING env variable */ |
3855 | remote_addr[1024], /* REMOTE_ADDR environment variable */ | |
3856 | remote_host[1024], /* REMOTE_HOST environment variable */ | |
3857 | remote_user[1024], /* REMOTE_USER environment variable */ | |
3858 | script_name[1024], /* SCRIPT_NAME environment variable */ | |
3859 | server_name[1024], /* SERVER_NAME environment variable */ | |
3860 | server_port[1024]; /* SERVER_PORT environment variable */ | |
3861 | ||
3862 | ||
3863 | /* | |
3864 | * Parse a copy of the options string, which is of the form: | |
3865 | * | |
b423cd4c | 3866 | * argument+argument+argument |
3867 | * ?argument+argument+argument | |
3868 | * param=value¶m=value | |
3869 | * ?param=value¶m=value | |
3870 | * /name?argument+argument+argument | |
3871 | * /name?param=value¶m=value | |
ef416fc2 | 3872 | * |
3873 | * If the string contains an "=" character after the initial name, | |
3874 | * then we treat it as a HTTP GET form request and make a copy of | |
3875 | * the remaining string for the environment variable. | |
3876 | * | |
3877 | * The string is always parsed out as command-line arguments, to | |
3878 | * be consistent with Apache... | |
3879 | */ | |
3880 | ||
3881 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
3882 | "pipe_command: command=\"%s\", options=\"%s\"", | |
f301802f | 3883 | command, options ? options : "(null)"); |
ef416fc2 | 3884 | |
b423cd4c | 3885 | argv[0] = command; |
ef416fc2 | 3886 | query_string = NULL; |
3887 | ||
b423cd4c | 3888 | if (options) |
3889 | strlcpy(argbuf, options, sizeof(argbuf)); | |
3890 | else | |
3891 | argbuf[0] = '\0'; | |
3892 | ||
3893 | if (argbuf[0] == '/') | |
ef416fc2 | 3894 | { |
3895 | /* | |
b423cd4c | 3896 | * Found some trailing path information, set PATH_INFO... |
ef416fc2 | 3897 | */ |
3898 | ||
b423cd4c | 3899 | if ((commptr = strchr(argbuf, '?')) == NULL) |
3900 | commptr = argbuf + strlen(argbuf); | |
ef416fc2 | 3901 | |
b423cd4c | 3902 | commch = *commptr; |
3903 | *commptr = '\0'; | |
3904 | snprintf(path_info, sizeof(path_info), "PATH_INFO=%s", argbuf); | |
3905 | *commptr = commch; | |
3906 | } | |
3907 | else | |
3908 | { | |
3909 | commptr = argbuf; | |
3910 | path_info[0] = '\0'; | |
3911 | } | |
ef416fc2 | 3912 | |
b423cd4c | 3913 | if (*commptr == '?' && con->operation == HTTP_GET) |
3914 | { | |
3915 | commptr ++; | |
3916 | cupsdSetStringf(&query_string, "QUERY_STRING=%s", commptr); | |
3917 | } | |
ef416fc2 | 3918 | |
b423cd4c | 3919 | argc = 1; |
ef416fc2 | 3920 | |
b423cd4c | 3921 | if (*commptr) |
3922 | { | |
3923 | argv[argc ++] = commptr; | |
ef416fc2 | 3924 | |
b423cd4c | 3925 | for (; *commptr && argc < 99; commptr ++) |
3926 | { | |
ef416fc2 | 3927 | /* |
b423cd4c | 3928 | * Break arguments whenever we see a + or space... |
ef416fc2 | 3929 | */ |
3930 | ||
b423cd4c | 3931 | if (*commptr == ' ' || *commptr == '+') |
3932 | { | |
3933 | while (*commptr == ' ' || *commptr == '+') | |
3934 | *commptr++ = '\0'; | |
ef416fc2 | 3935 | |
b423cd4c | 3936 | /* |
3937 | * If we don't have a blank string, save it as another argument... | |
3938 | */ | |
ef416fc2 | 3939 | |
b423cd4c | 3940 | if (*commptr) |
3941 | { | |
3942 | argv[argc] = commptr; | |
3943 | argc ++; | |
3944 | } | |
3945 | else | |
3946 | break; | |
3947 | } | |
3948 | else if (*commptr == '%' && isxdigit(commptr[1] & 255) && | |
3949 | isxdigit(commptr[2] & 255)) | |
3950 | { | |
3951 | /* | |
3952 | * Convert the %xx notation to the individual character. | |
3953 | */ | |
ef416fc2 | 3954 | |
b423cd4c | 3955 | if (commptr[1] >= '0' && commptr[1] <= '9') |
3956 | *commptr = (commptr[1] - '0') << 4; | |
3957 | else | |
3958 | *commptr = (tolower(commptr[1]) - 'a' + 10) << 4; | |
ef416fc2 | 3959 | |
b423cd4c | 3960 | if (commptr[2] >= '0' && commptr[2] <= '9') |
3961 | *commptr |= commptr[2] - '0'; | |
3962 | else | |
3963 | *commptr |= tolower(commptr[2]) - 'a' + 10; | |
ef416fc2 | 3964 | |
b423cd4c | 3965 | _cups_strcpy(commptr + 1, commptr + 3); |
ef416fc2 | 3966 | |
b423cd4c | 3967 | /* |
3968 | * Check for a %00 and break if that is the case... | |
3969 | */ | |
ef416fc2 | 3970 | |
b423cd4c | 3971 | if (!*commptr) |
3972 | break; | |
3973 | } | |
ef416fc2 | 3974 | } |
3975 | } | |
3976 | ||
3977 | argv[argc] = NULL; | |
3978 | ||
ef416fc2 | 3979 | /* |
3980 | * Setup the environment variables as needed... | |
3981 | */ | |
3982 | ||
3983 | if (con->language) | |
3984 | snprintf(lang, sizeof(lang), "LANG=%s.UTF-8", con->language->language); | |
3985 | else | |
3986 | strcpy(lang, "LANG=C"); | |
3987 | ||
3988 | strcpy(remote_addr, "REMOTE_ADDR="); | |
3989 | httpAddrString(con->http.hostaddr, remote_addr + 12, | |
3990 | sizeof(remote_addr) - 12); | |
3991 | ||
3992 | snprintf(remote_host, sizeof(remote_host), "REMOTE_HOST=%s", | |
3993 | con->http.hostname); | |
3994 | ||
3995 | snprintf(script_name, sizeof(script_name), "SCRIPT_NAME=%s", con->uri); | |
3996 | if ((uriptr = strchr(script_name, '?')) != NULL) | |
3997 | *uriptr = '\0'; | |
3998 | ||
3999 | sprintf(server_port, "SERVER_PORT=%d", con->serverport); | |
4000 | ||
4001 | snprintf(server_name, sizeof(server_name), "SERVER_NAME=%s", | |
4002 | con->servername); | |
4003 | ||
4004 | envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0]))); | |
4005 | ||
4006 | envp[envc ++] = lang; | |
4007 | envp[envc ++] = "REDIRECT_STATUS=1"; | |
4008 | envp[envc ++] = server_name; | |
4009 | envp[envc ++] = server_port; | |
4010 | envp[envc ++] = remote_addr; | |
4011 | envp[envc ++] = remote_host; | |
4012 | envp[envc ++] = script_name; | |
4013 | ||
b423cd4c | 4014 | if (path_info[0]) |
4015 | envp[envc ++] = path_info; | |
4016 | ||
ef416fc2 | 4017 | if (con->username[0]) |
4018 | { | |
4019 | snprintf(remote_user, sizeof(remote_user), "REMOTE_USER=%s", con->username); | |
4020 | ||
4021 | envp[envc ++] = remote_user; | |
4022 | } | |
4023 | ||
4024 | if (con->http.version == HTTP_1_1) | |
4025 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.1"; | |
4026 | else if (con->http.version == HTTP_1_0) | |
4027 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/1.0"; | |
4028 | else | |
4029 | envp[envc ++] = "SERVER_PROTOCOL=HTTP/0.9"; | |
4030 | ||
4031 | if (con->http.cookie) | |
4032 | { | |
4033 | snprintf(http_cookie, sizeof(http_cookie), "HTTP_COOKIE=%s", | |
4034 | con->http.cookie); | |
4035 | envp[envc ++] = http_cookie; | |
4036 | } | |
4037 | ||
4038 | if (con->http.fields[HTTP_FIELD_USER_AGENT][0]) | |
4039 | { | |
4040 | snprintf(http_user_agent, sizeof(http_user_agent), "HTTP_USER_AGENT=%s", | |
4041 | con->http.fields[HTTP_FIELD_USER_AGENT]); | |
4042 | envp[envc ++] = http_user_agent; | |
4043 | } | |
4044 | ||
4045 | if (con->operation == HTTP_GET) | |
4046 | { | |
4047 | for (i = 0; i < argc; i ++) | |
4048 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "argv[%d] = \"%s\"", i, argv[i]); | |
4049 | ||
4050 | envp[envc ++] = "REQUEST_METHOD=GET"; | |
4051 | ||
4052 | if (query_string) | |
4053 | { | |
4054 | /* | |
4055 | * Add GET form variables after ?... | |
4056 | */ | |
4057 | ||
4058 | envp[envc ++] = query_string; | |
4059 | } | |
4060 | } | |
4061 | else | |
4062 | { | |
e1d6a774 | 4063 | sprintf(content_length, "CONTENT_LENGTH=" CUPS_LLFMT, |
4064 | CUPS_LLCAST con->bytes); | |
ef416fc2 | 4065 | snprintf(content_type, sizeof(content_type), "CONTENT_TYPE=%s", |
4066 | con->http.fields[HTTP_FIELD_CONTENT_TYPE]); | |
4067 | ||
4068 | envp[envc ++] = "REQUEST_METHOD=POST"; | |
4069 | envp[envc ++] = content_length; | |
4070 | envp[envc ++] = content_type; | |
4071 | } | |
4072 | ||
4073 | /* | |
4074 | * Tell the CGI if we are using encryption... | |
4075 | */ | |
4076 | ||
a74454a7 | 4077 | if (con->http.tls) |
ef416fc2 | 4078 | envp[envc ++] = "HTTPS=ON"; |
4079 | ||
4080 | /* | |
4081 | * Terminate the environment array... | |
4082 | */ | |
4083 | ||
4084 | envp[envc] = NULL; | |
4085 | ||
4086 | if (LogLevel == CUPSD_LOG_DEBUG2) | |
4087 | { | |
4088 | for (i = 0; i < argc; i ++) | |
4089 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
4090 | "pipe_command: argv[%d] = \"%s\"", i, argv[i]); | |
4091 | for (i = 0; i < envc; i ++) | |
4092 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
4093 | "pipe_command: envp[%d] = \"%s\"", i, envp[i]); | |
4094 | } | |
4095 | ||
4096 | /* | |
4097 | * Create a pipe for the output... | |
4098 | */ | |
4099 | ||
4100 | if (cupsdOpenPipe(fds)) | |
4101 | { | |
4102 | cupsdClearString(&query_string); | |
4103 | ||
4104 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to create pipes for CGI %s - %s", | |
4105 | argv[0], strerror(errno)); | |
4106 | return (0); | |
4107 | } | |
4108 | ||
4109 | /* | |
4110 | * Then execute the command... | |
4111 | */ | |
4112 | ||
4113 | if (cupsdStartProcess(command, argv, envp, infile, fds[1], CGIPipes[1], | |
4114 | -1, root, &pid) < 0) | |
4115 | { | |
4116 | /* | |
4117 | * Error - can't fork! | |
4118 | */ | |
4119 | ||
4120 | cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to fork for CGI %s - %s", argv[0], | |
4121 | strerror(errno)); | |
4122 | ||
4123 | cupsdClosePipe(fds); | |
4124 | pid = 0; | |
4125 | } | |
4126 | else | |
4127 | { | |
4128 | /* | |
4129 | * Fork successful - return the PID... | |
4130 | */ | |
4131 | ||
4132 | if (con->username[0]) | |
4133 | cupsdAddCert(pid, con->username); | |
4134 | ||
4135 | cupsdLogMessage(CUPSD_LOG_DEBUG, "CGI %s started - PID = %d", command, pid); | |
4136 | ||
4137 | *outfile = fds[0]; | |
4138 | close(fds[1]); | |
4139 | } | |
4140 | ||
4141 | cupsdClearString(&query_string); | |
4142 | ||
4143 | return (pid); | |
4144 | } | |
4145 | ||
4146 | ||
4147 | /* | |
a74454a7 | 4148 | * 'write_file()' - Send a file via HTTP. |
e1d6a774 | 4149 | */ |
4150 | ||
4151 | static int /* O - 0 on failure, 1 on success */ | |
a74454a7 | 4152 | write_file(cupsd_client_t *con, /* I - Client connection */ |
4153 | http_status_t code, /* I - HTTP status */ | |
4154 | char *filename, /* I - Filename */ | |
4155 | char *type, /* I - File type */ | |
4156 | struct stat *filestats) /* O - File information */ | |
e1d6a774 | 4157 | { |
4158 | con->file = open(filename, O_RDONLY); | |
4159 | ||
a74454a7 | 4160 | cupsdLogMessage(CUPSD_LOG_DEBUG, "write_file: %d file=%d", con->http.fd, |
e1d6a774 | 4161 | con->file); |
4162 | ||
4163 | if (con->file < 0) | |
4164 | return (0); | |
4165 | ||
4166 | fcntl(con->file, F_SETFD, fcntl(con->file, F_GETFD) | FD_CLOEXEC); | |
4167 | ||
4168 | con->pipe_pid = 0; | |
4169 | ||
4170 | if (!cupsdSendHeader(con, code, type)) | |
4171 | return (0); | |
4172 | ||
4173 | if (httpPrintf(HTTP(con), "Last-Modified: %s\r\n", | |
4174 | httpGetDateString(filestats->st_mtime)) < 0) | |
4175 | return (0); | |
4176 | if (httpPrintf(HTTP(con), "Content-Length: " CUPS_LLFMT "\r\n", | |
4177 | CUPS_LLCAST filestats->st_size) < 0) | |
4178 | return (0); | |
4179 | if (httpPrintf(HTTP(con), "\r\n") < 0) | |
4180 | return (0); | |
4181 | ||
07725fee | 4182 | if (cupsdFlushHeader(con) < 0) |
4183 | return (0); | |
d09495fa | 4184 | |
e1d6a774 | 4185 | con->http.data_encoding = HTTP_ENCODE_LENGTH; |
4186 | con->http.data_remaining = filestats->st_size; | |
4187 | ||
4188 | if (con->http.data_remaining <= INT_MAX) | |
4189 | con->http._data_remaining = con->http.data_remaining; | |
4190 | else | |
4191 | con->http._data_remaining = INT_MAX; | |
4192 | ||
4193 | cupsdLogMessage(CUPSD_LOG_DEBUG2, | |
a74454a7 | 4194 | "write_file: Adding fd %d to OutputSet...", con->http.fd); |
e1d6a774 | 4195 | |
4196 | FD_SET(con->http.fd, OutputSet); | |
4197 | ||
4198 | return (1); | |
4199 | } | |
4200 | ||
4201 | ||
4202 | /* | |
2abf387c | 4203 | * End of "$Id: client.c 6027 2006-10-11 21:04:58Z mike $". |
ef416fc2 | 4204 | */ |