4 * Client routines for the CUPS scheduler.
6 * Copyright 2007-2014 by Apple Inc.
7 * Copyright 1997-2007 by Easy Software Products, all rights reserved.
9 * This file contains Kerberos support code, copyright 2006 by
12 * These coded instructions, statements, and computer programs are the
13 * property of Apple Inc. and are protected by Federal copyright
14 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
15 * which should have been included with this file. If this file is
16 * file is missing or damaged, see the license at "http://www.cups.org/".
20 * Include necessary headers...
23 #define _CUPS_NO_DEPRECATED
24 #define _HTTP_NO_PRIVATE
29 #endif /* __APPLE__ */
32 #endif /* HAVE_TCPD_H */
39 static int check_if_modified(cupsd_client_t
*con
,
40 struct stat
*filestats
);
41 static int compare_clients(cupsd_client_t
*a
, cupsd_client_t
*b
,
44 static int cupsd_start_tls(cupsd_client_t
*con
, http_encryption_t e
);
46 static char *get_file(cupsd_client_t
*con
, struct stat
*filestats
,
47 char *filename
, size_t len
);
48 static http_status_t
install_cupsd_conf(cupsd_client_t
*con
);
49 static int is_cgi(cupsd_client_t
*con
, const char *filename
,
50 struct stat
*filestats
, mime_type_t
*type
);
51 static int is_path_absolute(const char *path
);
52 static int pipe_command(cupsd_client_t
*con
, int infile
, int *outfile
,
53 char *command
, char *options
, int root
);
54 static int valid_host(cupsd_client_t
*con
);
55 static int write_file(cupsd_client_t
*con
, http_status_t code
,
56 char *filename
, char *type
,
57 struct stat
*filestats
);
58 static void write_pipe(cupsd_client_t
*con
);
62 * 'cupsdAcceptClient()' - Accept a new client.
66 cupsdAcceptClient(cupsd_listener_t
*lis
)/* I - Listener socket */
68 const char *hostname
; /* Hostname of client */
69 char name
[256]; /* Hostname of client */
70 int count
; /* Count of connections on a host */
71 cupsd_client_t
*con
, /* New client pointer */
72 *tempcon
; /* Temporary client pointer */
73 socklen_t addrlen
; /* Length of address */
74 http_addr_t temp
; /* Temporary address variable */
75 static time_t last_dos
= 0; /* Time of last DoS attack */
77 struct request_info wrap_req
; /* TCP wrappers request information */
78 #endif /* HAVE_TCPD_H */
81 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
82 "cupsdAcceptClient(lis=%p(%d)) Clients=%d",
83 lis
, lis
->fd
, cupsArrayCount(Clients
));
86 * Make sure we don't have a full set of clients already...
89 if (cupsArrayCount(Clients
) == MaxClients
)
93 * Get a pointer to the next available client...
97 Clients
= cupsArrayNew(NULL
, NULL
);
101 cupsdLogMessage(CUPSD_LOG_ERROR
,
102 "Unable to allocate memory for clients array!");
103 cupsdPauseListening();
108 ActiveClients
= cupsArrayNew((cups_array_func_t
)compare_clients
, NULL
);
112 cupsdLogMessage(CUPSD_LOG_ERROR
,
113 "Unable to allocate memory for active clients array!");
114 cupsdPauseListening();
118 if ((con
= calloc(1, sizeof(cupsd_client_t
))) == NULL
)
120 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to allocate memory for client!");
121 cupsdPauseListening();
126 * Accept the client and get the remote address...
129 con
->number
= ++ LastClientNumber
;
132 if ((con
->http
= httpAcceptConnection(lis
->fd
, 0)) == NULL
)
134 if (errno
== ENFILE
|| errno
== EMFILE
)
135 cupsdPauseListening();
137 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to accept client connection - %s.",
145 * Save the connected address and port number...
148 con
->clientaddr
= lis
->address
;
151 * Check the number of clients on the same address...
154 for (count
= 0, tempcon
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
156 tempcon
= (cupsd_client_t
*)cupsArrayNext(Clients
))
157 if (httpAddrEqual(httpGetAddress(tempcon
->http
), httpGetAddress(con
->http
)))
160 if (count
>= MaxClientsPerHost
)
164 if (count
>= MaxClientsPerHost
)
166 if ((time(NULL
) - last_dos
) >= 60)
168 last_dos
= time(NULL
);
169 cupsdLogMessage(CUPSD_LOG_WARN
,
170 "Possible DoS attack - more than %d clients connecting "
173 httpGetHostname(con
->http
, name
, sizeof(name
)));
176 httpClose(con
->http
);
182 * Get the hostname or format the IP address as needed...
186 hostname
= httpResolveHostname(con
->http
, NULL
, 0);
188 hostname
= httpGetHostname(con
->http
, NULL
, 0);
190 if (hostname
== NULL
&& HostNameLookups
== 2)
193 * Can't have an unresolved IP address with double-lookups enabled...
196 httpClose(con
->http
);
198 cupsdLogClient(con
, CUPSD_LOG_WARN
,
199 "Name lookup failed - connection from %s closed!",
200 httpGetHostname(con
->http
, NULL
, 0));
206 if (HostNameLookups
== 2)
209 * Do double lookups as needed...
212 http_addrlist_t
*addrlist
, /* List of addresses */
213 *addr
; /* Current address */
215 if ((addrlist
= httpAddrGetList(hostname
, AF_UNSPEC
, NULL
)) != NULL
)
218 * See if the hostname maps to the same IP address...
221 for (addr
= addrlist
; addr
; addr
= addr
->next
)
222 if (httpAddrEqual(httpGetAddress(con
->http
), &(addr
->addr
)))
228 httpAddrFreeList(addrlist
);
233 * Can't have a hostname that doesn't resolve to the same IP address
234 * with double-lookups enabled...
237 httpClose(con
->http
);
239 cupsdLogClient(con
, CUPSD_LOG_WARN
,
240 "IP lookup failed - connection from %s closed!",
241 httpGetHostname(con
->http
, NULL
, 0));
249 * See if the connection is denied by TCP wrappers...
252 request_init(&wrap_req
, RQ_DAEMON
, "cupsd", RQ_FILE
, httpGetFd(con
->http
),
256 if (!hosts_access(&wrap_req
))
258 httpClose(con
->http
);
260 cupsdLogClient(con
, CUPSD_LOG_WARN
,
261 "Connection from %s refused by /etc/hosts.allow and "
262 "/etc/hosts.deny rules.", httpGetHostname(con
->http
, NULL
, 0));
266 #endif /* HAVE_TCPD_H */
269 if (httpAddrFamily(httpGetAddress(con
->http
)) == AF_LOCAL
)
272 socklen_t peersize
; /* Size of peer credentials */
273 pid_t peerpid
; /* Peer process ID */
274 char peername
[256]; /* Name of process */
276 peersize
= sizeof(peerpid
);
277 if (!getsockopt(httpGetFd(con
->http
), SOL_LOCAL
, LOCAL_PEERPID
, &peerpid
,
280 if (!proc_name((int)peerpid
, peername
, sizeof(peername
)))
281 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
282 "Accepted from %s (Domain ???[%d])",
283 httpGetHostname(con
->http
, NULL
, 0), (int)peerpid
);
285 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
286 "Accepted from %s (Domain %s[%d])",
287 httpGetHostname(con
->http
, NULL
, 0), peername
, (int)peerpid
);
290 # endif /* __APPLE__ */
292 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Accepted from %s (Domain)",
293 httpGetHostname(con
->http
, NULL
, 0));
296 #endif /* AF_LOCAL */
297 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Accepted from %s:%d (IPv%d)",
298 httpGetHostname(con
->http
, NULL
, 0),
299 httpAddrPort(httpGetAddress(con
->http
)),
300 httpAddrFamily(httpGetAddress(con
->http
)) == AF_INET
? 4 : 6);
303 * Get the local address the client connected to...
306 addrlen
= sizeof(temp
);
307 if (getsockname(httpGetFd(con
->http
), (struct sockaddr
*)&temp
, &addrlen
))
309 cupsdLogClient(con
, CUPSD_LOG_ERROR
, "Unable to get local address - %s",
312 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
313 con
->serverport
= LocalPort
;
316 else if (httpAddrFamily(&temp
) == AF_LOCAL
)
318 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
319 con
->serverport
= LocalPort
;
321 #endif /* AF_LOCAL */
324 if (httpAddrLocalhost(&temp
))
325 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
326 else if (HostNameLookups
)
327 httpAddrLookup(&temp
, con
->servername
, sizeof(con
->servername
));
329 httpAddrString(&temp
, con
->servername
, sizeof(con
->servername
));
331 con
->serverport
= httpAddrPort(&(lis
->address
));
335 * Add the connection to the array of active clients...
338 cupsArrayAdd(Clients
, con
);
341 * Add the socket to the server select.
344 cupsdAddSelect(httpGetFd(con
->http
), (cupsd_selfunc_t
)cupsdReadClient
, NULL
,
347 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Waiting for request.");
350 * Temporarily suspend accept()'s until we lose a client...
353 if (cupsArrayCount(Clients
) == MaxClients
)
354 cupsdPauseListening();
358 * See if we are connecting on a secure port...
361 if (lis
->encryption
== HTTP_ENCRYPTION_ALWAYS
)
364 * https connection; go secure...
367 if (cupsd_start_tls(con
, HTTP_ENCRYPTION_ALWAYS
))
368 cupsdCloseClient(con
);
372 #endif /* HAVE_SSL */
377 * 'cupsdCloseAllClients()' - Close all remote clients immediately.
381 cupsdCloseAllClients(void)
383 cupsd_client_t
*con
; /* Current client */
386 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "cupsdCloseAllClients() Clients=%d",
387 cupsArrayCount(Clients
));
389 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
391 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
392 if (cupsdCloseClient(con
))
393 cupsdCloseClient(con
);
398 * 'cupsdCloseClient()' - Close a remote client.
401 int /* O - 1 if partial close, 0 if fully closed */
402 cupsdCloseClient(cupsd_client_t
*con
) /* I - Client to close */
404 int partial
; /* Do partial close for SSL? */
407 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Closing connection.");
410 * Flush pending writes before closing...
413 httpFlushWrite(con
->http
);
417 if (con
->pipe_pid
!= 0)
420 * Stop any CGI process...
423 cupsdEndProcess(con
->pipe_pid
, 1);
429 cupsdRemoveSelect(con
->file
);
436 * Close the socket and clear the file from the input set for select()...
439 if (httpGetFd(con
->http
) >= 0)
441 cupsArrayRemove(ActiveClients
, con
);
446 * Shutdown encryption as needed...
449 if (httpIsEncrypted(con
->http
))
451 #endif /* HAVE_SSL */
456 * Only do a partial close so that the encrypted client gets everything.
459 httpShutdown(con
->http
);
460 cupsdAddSelect(httpGetFd(con
->http
), (cupsd_selfunc_t
)cupsdReadClient
,
463 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Waiting for socket close.");
468 * Shut the socket down fully...
471 cupsdRemoveSelect(httpGetFd(con
->http
));
472 httpClose(con
->http
);
483 cupsdRemoveSelect(httpGetFd(con
->http
));
485 httpClose(con
->http
);
487 cupsdClearString(&con
->filename
);
488 cupsdClearString(&con
->command
);
489 cupsdClearString(&con
->options
);
490 cupsdClearString(&con
->query_string
);
494 ippDelete(con
->request
);
500 ippDelete(con
->response
);
501 con
->response
= NULL
;
506 cupsLangFree(con
->language
);
507 con
->language
= NULL
;
510 #ifdef HAVE_AUTHORIZATION_H
513 AuthorizationFree(con
->authref
, kAuthorizationFlagDefaults
);
516 #endif /* HAVE_AUTHORIZATION_H */
519 * Re-enable new client connections if we are going back under the
523 if (cupsArrayCount(Clients
) == MaxClients
)
524 cupsdResumeListening();
527 * Compact the list of clients as necessary...
530 cupsArrayRemove(Clients
, con
);
540 * 'cupsdReadClient()' - Read data from a client.
544 cupsdReadClient(cupsd_client_t
*con
) /* I - Client to read from */
546 char line
[32768], /* Line from client... */
547 locale
[64], /* Locale */
548 *ptr
; /* Pointer into strings */
549 http_status_t status
; /* Transfer status */
550 ipp_state_t ipp_state
; /* State of IPP transfer */
551 int bytes
; /* Number of bytes to POST */
552 char *filename
; /* Name of file for GET/HEAD */
553 char buf
[1024]; /* Buffer for real filename */
554 struct stat filestats
; /* File information */
555 mime_type_t
*type
; /* MIME type of file */
556 cupsd_printer_t
*p
; /* Printer */
557 static unsigned request_id
= 0; /* Request ID for temp files */
560 status
= HTTP_STATUS_CONTINUE
;
562 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
567 "data_encoding=HTTP_ENCODING_%s, "
568 "data_remaining=" CUPS_LLFMT
", "
571 httpError(con
->http
), (int)httpGetReady(con
->http
),
572 httpStateString(httpGetState(con
->http
)),
573 httpIsChunked(con
->http
) ? "CHUNKED" : "LENGTH",
574 CUPS_LLCAST
httpGetRemaining(con
->http
),
576 con
->request
? ippStateString(ippGetState(con
->request
)) : "",
579 if (httpGetState(con
->http
) == HTTP_STATE_GET_SEND
||
580 httpGetState(con
->http
) == HTTP_STATE_POST_SEND
||
581 httpGetState(con
->http
) == HTTP_STATE_STATUS
)
584 * If we get called in the wrong state, then something went wrong with the
585 * connection and we need to shut it down...
588 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Closing on unexpected HTTP read state %s.",
589 httpStateString(httpGetState(con
->http
)));
590 cupsdCloseClient(con
);
598 * Automatically check for a SSL/TLS handshake...
603 if (recv(httpGetFd(con
->http
), buf
, 1, MSG_PEEK
) == 1 &&
604 (!buf
[0] || !strchr("DGHOPT", buf
[0])))
607 * Encrypt this connection...
610 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
611 "Saw first byte %02X, auto-negotiating "
612 "SSL/TLS session.", buf
[0] & 255);
614 if (cupsd_start_tls(con
, HTTP_ENCRYPTION_ALWAYS
))
615 cupsdCloseClient(con
);
620 #endif /* HAVE_SSL */
622 switch (httpGetState(con
->http
))
624 case HTTP_STATE_WAITING
:
626 * See if we've received a request line...
629 con
->operation
= httpReadRequest(con
->http
, con
->uri
, sizeof(con
->uri
));
630 if (con
->operation
== HTTP_STATE_ERROR
||
631 con
->operation
== HTTP_STATE_UNKNOWN_METHOD
||
632 con
->operation
== HTTP_STATE_UNKNOWN_VERSION
)
634 if (httpError(con
->http
))
635 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
636 "HTTP_STATE_WAITING Closing for error %d (%s)",
637 httpError(con
->http
), strerror(httpError(con
->http
)));
639 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
640 "HTTP_STATE_WAITING Closing on error: %s",
641 cupsLastErrorString());
643 cupsdCloseClient(con
);
648 * Ignore blank request lines...
651 if (con
->operation
== HTTP_STATE_WAITING
)
655 * Clear other state variables...
662 con
->username
[0] = '\0';
663 con
->password
[0] = '\0';
665 cupsdClearString(&con
->command
);
666 cupsdClearString(&con
->options
);
667 cupsdClearString(&con
->query_string
);
671 ippDelete(con
->request
);
677 ippDelete(con
->response
);
678 con
->response
= NULL
;
683 cupsLangFree(con
->language
);
684 con
->language
= NULL
;
690 #endif /* HAVE_GSSAPI */
693 * Handle full URLs in the request line...
696 if (strcmp(con
->uri
, "*"))
698 char scheme
[HTTP_MAX_URI
], /* Method/scheme */
699 userpass
[HTTP_MAX_URI
], /* Username:password */
700 hostname
[HTTP_MAX_URI
], /* Hostname */
701 resource
[HTTP_MAX_URI
]; /* Resource path */
702 int port
; /* Port number */
705 * Separate the URI into its components...
708 if (httpSeparateURI(HTTP_URI_CODING_MOST
, con
->uri
,
709 scheme
, sizeof(scheme
),
710 userpass
, sizeof(userpass
),
711 hostname
, sizeof(hostname
), &port
,
712 resource
, sizeof(resource
)) < HTTP_URI_STATUS_OK
)
714 cupsdLogClient(con
, CUPSD_LOG_ERROR
, "Bad URI \"%s\" in request.",
716 cupsdSendError(con
, HTTP_STATUS_METHOD_NOT_ALLOWED
, CUPSD_AUTH_NONE
);
717 cupsdCloseClient(con
);
722 * Only allow URIs with the servername, localhost, or an IP
726 if (strcmp(scheme
, "file") &&
727 _cups_strcasecmp(hostname
, ServerName
) &&
728 _cups_strcasecmp(hostname
, "localhost") &&
729 !cupsArrayFind(ServerAlias
, hostname
) &&
730 !isdigit(hostname
[0]) && hostname
[0] != '[')
733 * Nope, we don't do proxies...
736 cupsdLogClient(con
, CUPSD_LOG_ERROR
, "Bad URI \"%s\" in request.",
738 cupsdSendError(con
, HTTP_STATUS_METHOD_NOT_ALLOWED
, CUPSD_AUTH_NONE
);
739 cupsdCloseClient(con
);
744 * Copy the resource portion back into the URI; both resource and
745 * con->uri are HTTP_MAX_URI bytes in size...
748 strlcpy(con
->uri
, resource
, sizeof(con
->uri
));
752 * Process the request...
755 gettimeofday(&(con
->start
), NULL
);
757 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "%s %s HTTP/%d.%d",
758 httpStateString(con
->operation
) + 11, con
->uri
,
759 httpGetVersion(con
->http
) / 100,
760 httpGetVersion(con
->http
) % 100);
762 if (!cupsArrayFind(ActiveClients
, con
))
764 cupsArrayAdd(ActiveClients
, con
);
768 case HTTP_STATE_OPTIONS
:
769 case HTTP_STATE_DELETE
:
770 case HTTP_STATE_GET
:
771 case HTTP_STATE_HEAD
:
772 case HTTP_STATE_POST
:
773 case HTTP_STATE_PUT
:
774 case HTTP_STATE_TRACE
:
776 * Parse incoming parameters until the status changes...
779 while ((status
= httpUpdate(con
->http
)) == HTTP_STATUS_CONTINUE
)
780 if (!httpGetReady(con
->http
))
783 if (status
!= HTTP_STATUS_OK
&& status
!= HTTP_STATUS_CONTINUE
)
785 if (httpError(con
->http
) && httpError(con
->http
) != EPIPE
)
786 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
787 "Closing for error %d (%s) while reading headers.",
788 httpError(con
->http
), strerror(httpError(con
->http
)));
790 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
791 "Closing on EOF while reading headers.");
793 cupsdSendError(con
, HTTP_STATUS_BAD_REQUEST
, CUPSD_AUTH_NONE
);
794 cupsdCloseClient(con
);
800 if (!httpGetReady(con
->http
) && recv(httpGetFd(con
->http
), buf
, 1, MSG_PEEK
) < 1)
803 * Connection closed...
806 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Closing on EOF.");
807 cupsdCloseClient(con
);
810 break; /* Anti-compiler-warning-code */
814 * Handle new transfers...
817 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Read: status=%d", status
);
819 if (status
== HTTP_STATUS_OK
)
821 if (httpGetField(con
->http
, HTTP_FIELD_ACCEPT_LANGUAGE
)[0])
824 * Figure out the locale from the Accept-Language and Content-Type
828 if ((ptr
= strchr(httpGetField(con
->http
, HTTP_FIELD_ACCEPT_LANGUAGE
),
832 if ((ptr
= strchr(httpGetField(con
->http
, HTTP_FIELD_ACCEPT_LANGUAGE
),
836 if ((ptr
= strstr(httpGetField(con
->http
, HTTP_FIELD_CONTENT_TYPE
),
837 "charset=")) != NULL
)
840 * Combine language and charset, and trim any extra params in the
844 snprintf(locale
, sizeof(locale
), "%s.%s",
845 httpGetField(con
->http
, HTTP_FIELD_ACCEPT_LANGUAGE
), ptr
+ 8);
847 if ((ptr
= strchr(locale
, ',')) != NULL
)
851 snprintf(locale
, sizeof(locale
), "%s.UTF-8",
852 httpGetField(con
->http
, HTTP_FIELD_ACCEPT_LANGUAGE
));
854 con
->language
= cupsLangGet(locale
);
857 con
->language
= cupsLangGet(DefaultLocale
);
861 if (!_cups_strncasecmp(httpGetField(con
->http
, HTTP_FIELD_CONNECTION
),
862 "Keep-Alive", 10) && KeepAlive
)
863 httpSetKeepAlive(con
->http
, HTTP_KEEPALIVE_ON
);
864 else if (!_cups_strncasecmp(httpGetField(con
->http
, HTTP_FIELD_CONNECTION
),
866 httpSetKeepAlive(con
->http
, HTTP_KEEPALIVE_OFF
);
868 if (!httpGetField(con
->http
, HTTP_FIELD_HOST
)[0] &&
869 httpGetVersion(con
->http
) >= HTTP_VERSION_1_1
)
872 * HTTP/1.1 and higher require the "Host:" field...
875 if (!cupsdSendError(con
, HTTP_STATUS_BAD_REQUEST
, CUPSD_AUTH_NONE
))
877 cupsdLogClient(con
, CUPSD_LOG_ERROR
, "Missing Host: field in request.");
878 cupsdCloseClient(con
);
882 else if (!valid_host(con
))
885 * Access to localhost must use "localhost" or the corresponding IPv4
886 * or IPv6 values in the Host: field.
889 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
890 "Request from \"%s\" using invalid Host: field \"%s\".",
891 httpGetHostname(con
->http
, NULL
, 0), httpGetField(con
->http
, HTTP_FIELD_HOST
));
893 if (!cupsdSendError(con
, HTTP_STATUS_BAD_REQUEST
, CUPSD_AUTH_NONE
))
895 cupsdCloseClient(con
);
899 else if (con
->operation
== HTTP_STATE_OPTIONS
)
902 * Do OPTIONS command...
905 if (con
->best
&& con
->best
->type
!= CUPSD_AUTH_NONE
)
907 httpClearFields(con
->http
);
909 if (!cupsdSendHeader(con
, HTTP_STATUS_UNAUTHORIZED
, NULL
, CUPSD_AUTH_NONE
))
911 cupsdCloseClient(con
);
916 if (!_cups_strcasecmp(httpGetField(con
->http
, HTTP_FIELD_CONNECTION
), "Upgrade") && strstr(httpGetField(con
->http
, HTTP_FIELD_UPGRADE
), "TLS/") != NULL
&& !httpIsEncrypted(con
->http
))
920 * Do encryption stuff...
923 httpClearFields(con
->http
);
925 if (!cupsdSendHeader(con
, HTTP_STATUS_SWITCHING_PROTOCOLS
, NULL
, CUPSD_AUTH_NONE
))
927 cupsdCloseClient(con
);
931 if (cupsd_start_tls(con
, HTTP_ENCRYPTION_REQUIRED
))
933 cupsdCloseClient(con
);
937 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
))
939 cupsdCloseClient(con
);
942 #endif /* HAVE_SSL */
945 httpClearFields(con
->http
);
946 httpSetField(con
->http
, HTTP_FIELD_ALLOW
,
947 "GET, HEAD, OPTIONS, POST, PUT");
948 httpSetField(con
->http
, HTTP_FIELD_CONTENT_LENGTH
, "0");
950 if (!cupsdSendHeader(con
, HTTP_STATUS_OK
, NULL
, CUPSD_AUTH_NONE
))
952 cupsdCloseClient(con
);
956 else if (!is_path_absolute(con
->uri
))
959 * Protect against malicious users!
962 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
963 "Request for non-absolute resource \"%s\".", con
->uri
);
965 if (!cupsdSendError(con
, HTTP_STATUS_FORBIDDEN
, CUPSD_AUTH_NONE
))
967 cupsdCloseClient(con
);
973 if (!_cups_strcasecmp(httpGetField(con
->http
, HTTP_FIELD_CONNECTION
),
974 "Upgrade") && !httpIsEncrypted(con
->http
))
978 * Do encryption stuff...
981 httpClearFields(con
->http
);
983 if (!cupsdSendHeader(con
, HTTP_STATUS_SWITCHING_PROTOCOLS
, NULL
,
986 cupsdCloseClient(con
);
990 if (cupsd_start_tls(con
, HTTP_ENCRYPTION_REQUIRED
))
992 cupsdCloseClient(con
);
996 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
))
998 cupsdCloseClient(con
);
1001 #endif /* HAVE_SSL */
1004 if ((status
= cupsdIsAuthorized(con
, NULL
)) != HTTP_STATUS_OK
)
1006 cupsdSendError(con
, status
, CUPSD_AUTH_NONE
);
1007 cupsdCloseClient(con
);
1011 if (httpGetExpect(con
->http
) &&
1012 (con
->operation
== HTTP_STATE_POST
|| con
->operation
== HTTP_STATE_PUT
))
1014 if (httpGetExpect(con
->http
) == HTTP_STATUS_CONTINUE
)
1017 * Send 100-continue header...
1020 if (httpWriteResponse(con
->http
, HTTP_STATUS_CONTINUE
))
1022 cupsdCloseClient(con
);
1029 * Send 417-expectation-failed header...
1032 httpClearFields(con
->http
);
1033 httpSetField(con
->http
, HTTP_FIELD_CONTENT_LENGTH
, "0");
1035 cupsdSendError(con
, HTTP_STATUS_EXPECTATION_FAILED
, CUPSD_AUTH_NONE
);
1036 cupsdCloseClient(con
);
1041 switch (httpGetState(con
->http
))
1043 case HTTP_STATE_GET_SEND
:
1044 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Processing GET %s", con
->uri
);
1046 if ((!strncmp(con
->uri
, "/ppd/", 5) ||
1047 !strncmp(con
->uri
, "/printers/", 10) ||
1048 !strncmp(con
->uri
, "/classes/", 9)) &&
1049 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1052 * Send PPD file - get the real printer name since printer
1053 * names are not case sensitive but filenames can be...
1056 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1058 if (!strncmp(con
->uri
, "/ppd/", 5))
1059 p
= cupsdFindPrinter(con
->uri
+ 5);
1060 else if (!strncmp(con
->uri
, "/printers/", 10))
1061 p
= cupsdFindPrinter(con
->uri
+ 10);
1064 p
= cupsdFindClass(con
->uri
+ 9);
1068 int i
; /* Looping var */
1070 for (i
= 0; i
< p
->num_printers
; i
++)
1072 if (!(p
->printers
[i
]->type
& CUPS_PRINTER_CLASS
))
1074 char ppdname
[1024];/* PPD filename */
1076 snprintf(ppdname
, sizeof(ppdname
), "%s/ppd/%s.ppd",
1077 ServerRoot
, p
->printers
[i
]->name
);
1078 if (!access(ppdname
, 0))
1086 if (i
>= p
->num_printers
)
1093 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1097 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1099 cupsdCloseClient(con
);
1106 else if ((!strncmp(con
->uri
, "/icons/", 7) ||
1107 !strncmp(con
->uri
, "/printers/", 10) ||
1108 !strncmp(con
->uri
, "/classes/", 9)) &&
1109 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".png"))
1112 * Send icon file - get the real queue name since queue names are
1113 * not case sensitive but filenames can be...
1116 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".png" */
1118 if (!strncmp(con
->uri
, "/icons/", 7))
1119 p
= cupsdFindPrinter(con
->uri
+ 7);
1120 else if (!strncmp(con
->uri
, "/printers/", 10))
1121 p
= cupsdFindPrinter(con
->uri
+ 10);
1124 p
= cupsdFindClass(con
->uri
+ 9);
1128 int i
; /* Looping var */
1130 for (i
= 0; i
< p
->num_printers
; i
++)
1132 if (!(p
->printers
[i
]->type
& CUPS_PRINTER_CLASS
))
1134 char ppdname
[1024];/* PPD filename */
1136 snprintf(ppdname
, sizeof(ppdname
), "%s/ppd/%s.ppd",
1137 ServerRoot
, p
->printers
[i
]->name
);
1138 if (!access(ppdname
, 0))
1146 if (i
>= p
->num_printers
)
1152 snprintf(con
->uri
, sizeof(con
->uri
), "/icons/%s.png", p
->name
);
1155 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1157 cupsdCloseClient(con
);
1164 else if (!WebInterface
)
1167 * Web interface is disabled. Show an appropriate message...
1170 if (!cupsdSendError(con
, HTTP_STATUS_CUPS_WEBIF_DISABLED
, CUPSD_AUTH_NONE
))
1172 cupsdCloseClient(con
);
1179 if ((!strncmp(con
->uri
, "/admin", 6) &&
1180 strncmp(con
->uri
, "/admin/conf/", 12) &&
1181 strncmp(con
->uri
, "/admin/log/", 11)) ||
1182 !strncmp(con
->uri
, "/printers", 9) ||
1183 !strncmp(con
->uri
, "/classes", 8) ||
1184 !strncmp(con
->uri
, "/help", 5) ||
1185 !strncmp(con
->uri
, "/jobs", 5))
1188 * Send CGI output...
1191 if (!strncmp(con
->uri
, "/admin", 6))
1193 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1196 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1198 else if (!strncmp(con
->uri
, "/printers", 9))
1200 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1203 if (con
->uri
[9] && con
->uri
[10])
1204 cupsdSetString(&con
->options
, con
->uri
+ 9);
1206 cupsdSetString(&con
->options
, NULL
);
1208 else if (!strncmp(con
->uri
, "/classes", 8))
1210 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1213 if (con
->uri
[8] && con
->uri
[9])
1214 cupsdSetString(&con
->options
, con
->uri
+ 8);
1216 cupsdSetString(&con
->options
, NULL
);
1218 else if (!strncmp(con
->uri
, "/jobs", 5))
1220 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1223 if (con
->uri
[5] && con
->uri
[6])
1224 cupsdSetString(&con
->options
, con
->uri
+ 5);
1226 cupsdSetString(&con
->options
, NULL
);
1230 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1233 if (con
->uri
[5] && con
->uri
[6])
1234 cupsdSetString(&con
->options
, con
->uri
+ 5);
1236 cupsdSetString(&con
->options
, NULL
);
1239 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1241 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1243 cupsdCloseClient(con
);
1248 cupsdLogRequest(con
, HTTP_STATUS_OK
);
1250 if (httpGetVersion(con
->http
) <= HTTP_VERSION_1_0
)
1251 httpSetKeepAlive(con
->http
, HTTP_KEEPALIVE_OFF
);
1253 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1254 (strchr(con
->uri
+ 12, '/') ||
1255 strlen(con
->uri
) == 12)) ||
1256 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1257 (strchr(con
->uri
+ 11, '/') ||
1258 strlen(con
->uri
) == 11)))
1261 * GET can only be done to configuration files directly under
1265 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
1266 "Request for subdirectory \"%s\"!", con
->uri
);
1268 if (!cupsdSendError(con
, HTTP_STATUS_FORBIDDEN
, CUPSD_AUTH_NONE
))
1270 cupsdCloseClient(con
);
1282 if ((filename
= get_file(con
, &filestats
, buf
,
1283 sizeof(buf
))) == NULL
)
1285 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1287 cupsdCloseClient(con
);
1294 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1296 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "filename=\"%s\", type=%s/%s", filename
, type
? type
->super
: "", type
? type
->type
: "");
1298 if (is_cgi(con
, filename
, &filestats
, type
))
1301 * Note: con->command and con->options were set by
1305 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1307 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1309 cupsdCloseClient(con
);
1314 cupsdLogRequest(con
, HTTP_STATUS_OK
);
1316 if (httpGetVersion(con
->http
) <= HTTP_VERSION_1_0
)
1317 httpSetKeepAlive(con
->http
, HTTP_KEEPALIVE_OFF
);
1321 if (!check_if_modified(con
, &filestats
))
1323 if (!cupsdSendError(con
, HTTP_STATUS_NOT_MODIFIED
, CUPSD_AUTH_NONE
))
1325 cupsdCloseClient(con
);
1332 strlcpy(line
, "text/plain", sizeof(line
));
1334 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1336 if (!write_file(con
, HTTP_STATUS_OK
, filename
, line
, &filestats
))
1338 cupsdCloseClient(con
);
1345 case HTTP_STATE_POST_RECV
:
1347 * See if the POST request includes a Content-Length field, and if
1348 * so check the length against any limits that are set...
1351 if (httpGetField(con
->http
, HTTP_FIELD_CONTENT_LENGTH
)[0] &&
1352 MaxRequestSize
> 0 &&
1353 httpGetLength2(con
->http
) > MaxRequestSize
)
1356 * Request too large...
1359 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1361 cupsdCloseClient(con
);
1367 else if (httpGetLength2(con
->http
) < 0)
1370 * Negative content lengths are invalid!
1373 if (!cupsdSendError(con
, HTTP_STATUS_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1375 cupsdCloseClient(con
);
1383 * See what kind of POST request this is; for IPP requests the
1384 * content-type field will be "application/ipp"...
1387 if (!strcmp(httpGetField(con
->http
, HTTP_FIELD_CONTENT_TYPE
),
1389 con
->request
= ippNew();
1390 else if (!WebInterface
)
1393 * Web interface is disabled. Show an appropriate message...
1396 if (!cupsdSendError(con
, HTTP_STATUS_CUPS_WEBIF_DISABLED
, CUPSD_AUTH_NONE
))
1398 cupsdCloseClient(con
);
1404 else if ((!strncmp(con
->uri
, "/admin", 6) &&
1405 strncmp(con
->uri
, "/admin/conf/", 12) &&
1406 strncmp(con
->uri
, "/admin/log/", 11)) ||
1407 !strncmp(con
->uri
, "/printers", 9) ||
1408 !strncmp(con
->uri
, "/classes", 8) ||
1409 !strncmp(con
->uri
, "/help", 5) ||
1410 !strncmp(con
->uri
, "/jobs", 5))
1416 if (!strncmp(con
->uri
, "/admin", 6))
1418 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1421 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1423 else if (!strncmp(con
->uri
, "/printers", 9))
1425 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1428 if (con
->uri
[9] && con
->uri
[10])
1429 cupsdSetString(&con
->options
, con
->uri
+ 9);
1431 cupsdSetString(&con
->options
, NULL
);
1433 else if (!strncmp(con
->uri
, "/classes", 8))
1435 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1438 if (con
->uri
[8] && con
->uri
[9])
1439 cupsdSetString(&con
->options
, con
->uri
+ 8);
1441 cupsdSetString(&con
->options
, NULL
);
1443 else if (!strncmp(con
->uri
, "/jobs", 5))
1445 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1448 if (con
->uri
[5] && con
->uri
[6])
1449 cupsdSetString(&con
->options
, con
->uri
+ 5);
1451 cupsdSetString(&con
->options
, NULL
);
1455 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1458 if (con
->uri
[5] && con
->uri
[6])
1459 cupsdSetString(&con
->options
, con
->uri
+ 5);
1461 cupsdSetString(&con
->options
, NULL
);
1464 if (httpGetVersion(con
->http
) <= HTTP_VERSION_1_0
)
1465 httpSetKeepAlive(con
->http
, HTTP_KEEPALIVE_OFF
);
1473 if ((filename
= get_file(con
, &filestats
, buf
,
1474 sizeof(buf
))) == NULL
)
1476 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1478 cupsdCloseClient(con
);
1485 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1487 if (!is_cgi(con
, filename
, &filestats
, type
))
1490 * Only POST to CGI's...
1493 if (!cupsdSendError(con
, HTTP_STATUS_UNAUTHORIZED
, CUPSD_AUTH_NONE
))
1495 cupsdCloseClient(con
);
1502 case HTTP_STATE_PUT_RECV
:
1504 * Validate the resource name...
1507 if (strcmp(con
->uri
, "/admin/conf/cupsd.conf"))
1510 * PUT can only be done to the cupsd.conf file...
1513 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
1514 "Disallowed PUT request for \"%s\".", con
->uri
);
1516 if (!cupsdSendError(con
, HTTP_STATUS_FORBIDDEN
, CUPSD_AUTH_NONE
))
1518 cupsdCloseClient(con
);
1526 * See if the PUT request includes a Content-Length field, and if
1527 * so check the length against any limits that are set...
1530 if (httpGetField(con
->http
, HTTP_FIELD_CONTENT_LENGTH
)[0] &&
1531 MaxRequestSize
> 0 &&
1532 httpGetLength2(con
->http
) > MaxRequestSize
)
1535 * Request too large...
1538 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1540 cupsdCloseClient(con
);
1546 else if (httpGetLength2(con
->http
) < 0)
1549 * Negative content lengths are invalid!
1552 if (!cupsdSendError(con
, HTTP_STATUS_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1554 cupsdCloseClient(con
);
1562 * Open a temporary file to hold the request...
1565 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
,
1567 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1571 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
1572 "Unable to create request file \"%s\": %s",
1573 con
->filename
, strerror(errno
));
1575 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1577 cupsdCloseClient(con
);
1582 fchmod(con
->file
, 0640);
1583 fchown(con
->file
, RunUser
, Group
);
1584 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1587 case HTTP_STATE_DELETE
:
1588 case HTTP_STATE_TRACE
:
1589 cupsdSendError(con
, HTTP_STATUS_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
);
1590 cupsdCloseClient(con
);
1593 case HTTP_STATE_HEAD
:
1594 if (!strncmp(con
->uri
, "/printers/", 10) &&
1595 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1598 * Send PPD file - get the real printer name since printer
1599 * names are not case sensitive but filenames can be...
1602 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1604 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1605 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1608 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1610 cupsdCloseClient(con
);
1614 cupsdLogRequest(con
, HTTP_STATUS_NOT_FOUND
);
1618 else if (!strncmp(con
->uri
, "/printers/", 10) &&
1619 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".png"))
1622 * Send PNG file - get the real printer name since printer
1623 * names are not case sensitive but filenames can be...
1626 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1628 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1629 snprintf(con
->uri
, sizeof(con
->uri
), "/icons/%s.png", p
->name
);
1632 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
1634 cupsdCloseClient(con
);
1638 cupsdLogRequest(con
, HTTP_STATUS_NOT_FOUND
);
1642 else if (!WebInterface
)
1644 httpClearFields(con
->http
);
1646 if (!cupsdSendHeader(con
, HTTP_STATUS_OK
, NULL
, CUPSD_AUTH_NONE
))
1648 cupsdCloseClient(con
);
1652 cupsdLogRequest(con
, HTTP_STATUS_OK
);
1656 if ((!strncmp(con
->uri
, "/admin", 6) &&
1657 strncmp(con
->uri
, "/admin/conf/", 12) &&
1658 strncmp(con
->uri
, "/admin/log/", 11)) ||
1659 !strncmp(con
->uri
, "/printers", 9) ||
1660 !strncmp(con
->uri
, "/classes", 8) ||
1661 !strncmp(con
->uri
, "/help", 5) ||
1662 !strncmp(con
->uri
, "/jobs", 5))
1668 httpClearFields(con
->http
);
1670 if (!cupsdSendHeader(con
, HTTP_STATUS_OK
, "text/html", CUPSD_AUTH_NONE
))
1672 cupsdCloseClient(con
);
1676 cupsdLogRequest(con
, HTTP_STATUS_OK
);
1678 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1679 (strchr(con
->uri
+ 12, '/') ||
1680 strlen(con
->uri
) == 12)) ||
1681 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1682 (strchr(con
->uri
+ 11, '/') ||
1683 strlen(con
->uri
) == 11)))
1686 * HEAD can only be done to configuration files under
1690 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
1691 "Request for subdirectory \"%s\".", con
->uri
);
1693 if (!cupsdSendError(con
, HTTP_STATUS_FORBIDDEN
, CUPSD_AUTH_NONE
))
1695 cupsdCloseClient(con
);
1699 cupsdLogRequest(con
, HTTP_STATUS_FORBIDDEN
);
1702 else if ((filename
= get_file(con
, &filestats
, buf
,
1703 sizeof(buf
))) == NULL
)
1705 httpClearFields(con
->http
);
1707 if (!cupsdSendHeader(con
, HTTP_STATUS_NOT_FOUND
, "text/html",
1710 cupsdCloseClient(con
);
1714 cupsdLogRequest(con
, HTTP_STATUS_NOT_FOUND
);
1716 else if (!check_if_modified(con
, &filestats
))
1718 if (!cupsdSendError(con
, HTTP_STATUS_NOT_MODIFIED
, CUPSD_AUTH_NONE
))
1720 cupsdCloseClient(con
);
1724 cupsdLogRequest(con
, HTTP_STATUS_NOT_MODIFIED
);
1732 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1734 strlcpy(line
, "text/plain", sizeof(line
));
1736 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1738 httpClearFields(con
->http
);
1740 httpSetField(con
->http
, HTTP_FIELD_LAST_MODIFIED
,
1741 httpGetDateString(filestats
.st_mtime
));
1742 httpSetLength(con
->http
, (size_t)filestats
.st_size
);
1744 if (!cupsdSendHeader(con
, HTTP_STATUS_OK
, line
, CUPSD_AUTH_NONE
))
1746 cupsdCloseClient(con
);
1750 cupsdLogRequest(con
, HTTP_STATUS_OK
);
1755 break; /* Anti-compiler-warning-code */
1761 * Handle any incoming data...
1764 switch (httpGetState(con
->http
))
1766 case HTTP_STATE_PUT_RECV
:
1769 if ((bytes
= httpRead2(con
->http
, line
, sizeof(line
))) < 0)
1771 if (httpError(con
->http
) && httpError(con
->http
) != EPIPE
)
1772 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
1773 "HTTP_STATE_PUT_RECV Closing for error %d (%s)",
1774 httpError(con
->http
), strerror(httpError(con
->http
)));
1776 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
1777 "HTTP_STATE_PUT_RECV Closing on EOF.");
1779 cupsdCloseClient(con
);
1784 con
->bytes
+= bytes
;
1786 if (write(con
->file
, line
, (size_t)bytes
) < bytes
)
1788 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
1789 "Unable to write %d bytes to \"%s\": %s", bytes
,
1790 con
->filename
, strerror(errno
));
1794 unlink(con
->filename
);
1795 cupsdClearString(&con
->filename
);
1797 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1799 cupsdCloseClient(con
);
1805 while (httpGetState(con
->http
) == HTTP_STATE_PUT_RECV
&& httpGetReady(con
->http
));
1807 if (httpGetState(con
->http
) == HTTP_STATE_STATUS
)
1810 * End of file, see how big it is...
1813 fstat(con
->file
, &filestats
);
1818 if (filestats
.st_size
> MaxRequestSize
&&
1822 * Request is too big; remove it and send an error...
1825 unlink(con
->filename
);
1826 cupsdClearString(&con
->filename
);
1828 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1830 cupsdCloseClient(con
);
1836 * Install the configuration file...
1839 status
= install_cupsd_conf(con
);
1842 * Return the status to the client...
1845 if (!cupsdSendError(con
, status
, CUPSD_AUTH_NONE
))
1847 cupsdCloseClient(con
);
1853 case HTTP_STATE_POST_RECV
:
1856 if (con
->request
&& con
->file
< 0)
1859 * Grab any request data from the connection...
1862 if ((ipp_state
= ippRead(con
->http
, con
->request
)) == IPP_STATE_ERROR
)
1864 cupsdLogClient(con
, CUPSD_LOG_ERROR
, "IPP read error: %s",
1865 cupsLastErrorString());
1867 cupsdSendError(con
, HTTP_STATUS_BAD_REQUEST
, CUPSD_AUTH_NONE
);
1868 cupsdCloseClient(con
);
1871 else if (ipp_state
!= IPP_STATE_DATA
)
1873 if (httpGetState(con
->http
) == HTTP_STATE_POST_SEND
)
1875 cupsdSendError(con
, HTTP_STATUS_BAD_REQUEST
, CUPSD_AUTH_NONE
);
1876 cupsdCloseClient(con
);
1880 if (httpGetReady(con
->http
))
1886 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "%d.%d %s %d",
1887 con
->request
->request
.op
.version
[0],
1888 con
->request
->request
.op
.version
[1],
1889 ippOpString(con
->request
->request
.op
.operation_id
),
1890 con
->request
->request
.op
.request_id
);
1891 con
->bytes
+= ippLength(con
->request
);
1895 if (con
->file
< 0 && httpGetState(con
->http
) != HTTP_STATE_POST_SEND
)
1898 * Create a file as needed for the request data...
1901 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
,
1903 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1907 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
1908 "Unable to create request file \"%s\": %s",
1909 con
->filename
, strerror(errno
));
1911 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1913 cupsdCloseClient(con
);
1918 fchmod(con
->file
, 0640);
1919 fchown(con
->file
, RunUser
, Group
);
1920 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1923 if (httpGetState(con
->http
) != HTTP_STATE_POST_SEND
)
1925 if (!httpWait(con
->http
, 0))
1927 else if ((bytes
= httpRead2(con
->http
, line
, sizeof(line
))) < 0)
1929 if (httpError(con
->http
) && httpError(con
->http
) != EPIPE
)
1930 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
1931 "HTTP_STATE_POST_SEND Closing for error %d (%s)",
1932 httpError(con
->http
), strerror(httpError(con
->http
)));
1934 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
1935 "HTTP_STATE_POST_SEND Closing on EOF.");
1937 cupsdCloseClient(con
);
1942 con
->bytes
+= bytes
;
1944 if (write(con
->file
, line
, (size_t)bytes
) < bytes
)
1946 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
1947 "Unable to write %d bytes to \"%s\": %s",
1948 bytes
, con
->filename
, strerror(errno
));
1952 unlink(con
->filename
);
1953 cupsdClearString(&con
->filename
);
1955 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
,
1958 cupsdCloseClient(con
);
1963 else if (httpGetState(con
->http
) == HTTP_STATE_POST_RECV
)
1965 else if (httpGetState(con
->http
) != HTTP_STATE_POST_SEND
)
1967 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
1968 "Closing on unexpected state %s.",
1969 httpStateString(httpGetState(con
->http
)));
1970 cupsdCloseClient(con
);
1975 while (httpGetState(con
->http
) == HTTP_STATE_POST_RECV
&& httpGetReady(con
->http
));
1977 if (httpGetState(con
->http
) == HTTP_STATE_POST_SEND
)
1981 fstat(con
->file
, &filestats
);
1986 if (filestats
.st_size
> MaxRequestSize
&&
1990 * Request is too big; remove it and send an error...
1993 unlink(con
->filename
);
1994 cupsdClearString(&con
->filename
);
1999 * Delete any IPP request data...
2002 ippDelete(con
->request
);
2003 con
->request
= NULL
;
2006 if (!cupsdSendError(con
, HTTP_STATUS_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2008 cupsdCloseClient(con
);
2012 else if (filestats
.st_size
== 0)
2015 * Don't allow empty file...
2018 unlink(con
->filename
);
2019 cupsdClearString(&con
->filename
);
2024 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
2026 if (!cupsdSendError(con
, HTTP_STATUS_NOT_FOUND
, CUPSD_AUTH_NONE
))
2028 cupsdCloseClient(con
);
2033 cupsdLogRequest(con
, HTTP_STATUS_OK
);
2039 cupsdProcessIPPRequest(con
);
2043 unlink(con
->filename
);
2044 cupsdClearString(&con
->filename
);
2053 break; /* Anti-compiler-warning-code */
2056 if (httpGetState(con
->http
) == HTTP_STATE_WAITING
)
2058 if (!httpGetKeepAlive(con
->http
))
2060 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
2061 "Closing because Keep-Alive is disabled.");
2062 cupsdCloseClient(con
);
2066 cupsArrayRemove(ActiveClients
, con
);
2067 cupsdSetBusyState();
2074 * 'cupsdSendCommand()' - Send output from a command via HTTP.
2077 int /* O - 1 on success, 0 on failure */
2079 cupsd_client_t
*con
, /* I - Client connection */
2080 char *command
, /* I - Command to run */
2081 char *options
, /* I - Command-line options */
2082 int root
) /* I - Run as root? */
2084 int fd
; /* Standard input file descriptor */
2089 fd
= open(con
->filename
, O_RDONLY
);
2093 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
2094 "Unable to open \"%s\" for reading: %s",
2095 con
->filename
? con
->filename
: "/dev/null",
2100 fcntl(fd
, F_SETFD
, fcntl(fd
, F_GETFD
) | FD_CLOEXEC
);
2105 con
->pipe_pid
= pipe_command(con
, fd
, &(con
->file
), command
, options
, root
);
2106 con
->pipe_status
= HTTP_STATUS_OK
;
2108 httpClearFields(con
->http
);
2113 cupsdLogClient(con
, CUPSD_LOG_INFO
, "Started \"%s\" (pid=%d, file=%d)",
2114 command
, con
->pipe_pid
, con
->file
);
2116 if (con
->pipe_pid
== 0)
2119 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
2121 cupsdAddSelect(con
->file
, (cupsd_selfunc_t
)write_pipe
, NULL
, con
);
2123 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Waiting for CGI data.");
2125 con
->sent_header
= 0;
2126 con
->file_ready
= 0;
2127 con
->got_fields
= 0;
2128 con
->header_used
= 0;
2135 * 'cupsdSendError()' - Send an error message via HTTP.
2138 int /* O - 1 if successful, 0 otherwise */
2139 cupsdSendError(cupsd_client_t
*con
, /* I - Connection */
2140 http_status_t code
, /* I - Error code */
2141 int auth_type
)/* I - Authentication type */
2143 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
, "cupsdSendError code=%d, auth_type=%d",
2148 * Force client to upgrade for authentication if that is how the
2149 * server is configured...
2152 if (code
== HTTP_STATUS_UNAUTHORIZED
&&
2153 DefaultEncryption
== HTTP_ENCRYPTION_REQUIRED
&&
2154 _cups_strcasecmp(httpGetHostname(con
->http
, NULL
, 0), "localhost") &&
2155 !httpIsEncrypted(con
->http
))
2157 code
= HTTP_STATUS_UPGRADE_REQUIRED
;
2159 #endif /* HAVE_SSL */
2162 * Put the request in the access_log file...
2165 cupsdLogRequest(con
, code
);
2168 * To work around bugs in some proxies, don't use Keep-Alive for some
2171 * Kerberos authentication doesn't work without Keep-Alive, so
2172 * never disable it in that case.
2175 httpClearFields(con
->http
);
2177 if (code
>= HTTP_STATUS_BAD_REQUEST
&& con
->type
!= CUPSD_AUTH_NEGOTIATE
)
2178 httpSetKeepAlive(con
->http
, HTTP_KEEPALIVE_OFF
);
2180 if (httpGetVersion(con
->http
) >= HTTP_VERSION_1_1
&&
2181 httpGetKeepAlive(con
->http
) == HTTP_KEEPALIVE_OFF
)
2182 httpSetField(con
->http
, HTTP_FIELD_CONNECTION
, "close");
2184 if (code
>= HTTP_STATUS_BAD_REQUEST
)
2187 * Send a human-readable error message.
2190 char message
[4096], /* Message for user */
2191 urltext
[1024], /* URL redirection text */
2192 redirect
[1024]; /* Redirection link */
2193 const char *text
; /* Status-specific text */
2198 if (code
== HTTP_STATUS_UNAUTHORIZED
)
2199 text
= _cupsLangString(con
->language
,
2200 _("Enter your username and password or the "
2201 "root username and password to access this "
2202 "page. If you are using Kerberos authentication, "
2203 "make sure you have a valid Kerberos ticket."));
2204 else if (code
== HTTP_STATUS_UPGRADE_REQUIRED
)
2208 snprintf(urltext
, sizeof(urltext
),
2209 _cupsLangString(con
->language
,
2210 _("You must access this page using the URL "
2211 "<A HREF=\"https://%s:%d%s\">"
2212 "https://%s:%d%s</A>.")),
2213 con
->servername
, con
->serverport
, con
->uri
,
2214 con
->servername
, con
->serverport
, con
->uri
);
2216 snprintf(redirect
, sizeof(redirect
),
2217 "<META HTTP-EQUIV=\"Refresh\" "
2218 "CONTENT=\"3;URL=https://%s:%d%s\">\n",
2219 con
->servername
, con
->serverport
, con
->uri
);
2221 else if (code
== HTTP_STATUS_CUPS_WEBIF_DISABLED
)
2222 text
= _cupsLangString(con
->language
,
2223 _("The web interface is currently disabled. Run "
2224 "\"cupsctl WebInterface=yes\" to enable it."));
2228 snprintf(message
, sizeof(message
),
2229 "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" "
2230 "\"http://www.w3.org/TR/html4/loose.dtd\">\n"
2233 "\t<META HTTP-EQUIV=\"Content-Type\" "
2234 "CONTENT=\"text/html; charset=utf-8\">\n"
2235 "\t<TITLE>%s - " CUPS_SVERSION
"</TITLE>\n"
2236 "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" "
2237 "HREF=\"/cups.css\">\n"
2245 _httpStatus(con
->language
, code
), redirect
,
2246 _httpStatus(con
->language
, code
), text
);
2249 * Send an error message back to the client. If the error code is a
2250 * 400 or 500 series, make sure the message contains some text, too!
2253 size_t length
= strlen(message
); /* Length of message */
2255 httpSetLength(con
->http
, length
);
2257 if (!cupsdSendHeader(con
, code
, "text/html", auth_type
))
2260 if (httpWrite2(con
->http
, message
, length
) < 0)
2263 if (httpFlushWrite(con
->http
) < 0)
2268 httpSetField(con
->http
, HTTP_FIELD_CONTENT_LENGTH
, "0");
2270 if (!cupsdSendHeader(con
, code
, NULL
, auth_type
))
2279 * 'cupsdSendHeader()' - Send an HTTP request.
2282 int /* O - 1 on success, 0 on failure */
2284 cupsd_client_t
*con
, /* I - Client to send to */
2285 http_status_t code
, /* I - HTTP status code */
2286 char *type
, /* I - MIME type of document */
2287 int auth_type
) /* I - Type of authentication */
2289 char auth_str
[1024]; /* Authorization string */
2293 * Send the HTTP status header...
2296 if (code
== HTTP_STATUS_CUPS_WEBIF_DISABLED
)
2299 * Treat our special "web interface is disabled" status as "200 OK" for web
2303 code
= HTTP_STATUS_OK
;
2307 httpSetField(con
->http
, HTTP_FIELD_SERVER
, ServerHeader
);
2309 if (code
== HTTP_STATUS_METHOD_NOT_ALLOWED
)
2310 httpSetField(con
->http
, HTTP_FIELD_ALLOW
, "GET, HEAD, OPTIONS, POST, PUT");
2312 if (code
== HTTP_STATUS_UNAUTHORIZED
)
2314 if (auth_type
== CUPSD_AUTH_NONE
)
2316 if (!con
->best
|| con
->best
->type
<= CUPSD_AUTH_NONE
)
2317 auth_type
= cupsdDefaultAuthType();
2319 auth_type
= con
->best
->type
;
2324 if (auth_type
== CUPSD_AUTH_BASIC
|| auth_type
== CUPSD_AUTH_BASICDIGEST
)
2325 strlcpy(auth_str
, "Basic realm=\"CUPS\"", sizeof(auth_str
));
2326 else if (auth_type
== CUPSD_AUTH_DIGEST
)
2327 snprintf(auth_str
, sizeof(auth_str
), "Digest realm=\"CUPS\", nonce=\"%s\"",
2328 httpGetHostname(con
->http
, NULL
, 0));
2330 else if (auth_type
== CUPSD_AUTH_NEGOTIATE
)
2333 if (httpAddrFamily(httpGetAddress(con
->http
)) == AF_LOCAL
)
2334 strlcpy(auth_str
, "Basic realm=\"CUPS\"", sizeof(auth_str
));
2336 # endif /* AF_LOCAL */
2337 strlcpy(auth_str
, "Negotiate", sizeof(auth_str
));
2339 #endif /* HAVE_GSSAPI */
2341 if (con
->best
&& auth_type
!= CUPSD_AUTH_NEGOTIATE
&&
2342 !_cups_strcasecmp(httpGetHostname(con
->http
, NULL
, 0), "localhost"))
2345 * Add a "trc" (try root certification) parameter for local non-Kerberos
2346 * requests when the request requires system group membership - then the
2347 * client knows the root certificate can/should be used.
2349 * Also, for OS X we also look for @AUTHKEY and add an "authkey"
2350 * parameter as needed...
2353 char *name
, /* Current user name */
2354 *auth_key
; /* Auth key buffer */
2355 size_t auth_size
; /* Size of remaining buffer */
2357 auth_key
= auth_str
+ strlen(auth_str
);
2358 auth_size
= sizeof(auth_str
) - (size_t)(auth_key
- auth_str
);
2360 for (name
= (char *)cupsArrayFirst(con
->best
->names
);
2362 name
= (char *)cupsArrayNext(con
->best
->names
))
2364 #ifdef HAVE_AUTHORIZATION_H
2365 if (!_cups_strncasecmp(name
, "@AUTHKEY(", 9))
2367 snprintf(auth_key
, auth_size
, ", authkey=\"%s\"", name
+ 9);
2368 /* end parenthesis is stripped in conf.c */
2372 #endif /* HAVE_AUTHORIZATION_H */
2373 if (!_cups_strcasecmp(name
, "@SYSTEM"))
2375 #ifdef HAVE_AUTHORIZATION_H
2376 if (SystemGroupAuthKey
)
2377 snprintf(auth_key
, auth_size
,
2379 SystemGroupAuthKey
);
2382 strlcpy(auth_key
, ", trc=\"y\"", auth_size
);
2383 #endif /* HAVE_AUTHORIZATION_H */
2391 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "WWW-Authenticate: %s", auth_str
);
2393 httpSetField(con
->http
, HTTP_FIELD_WWW_AUTHENTICATE
, auth_str
);
2397 if (con
->language
&& strcmp(con
->language
->language
, "C"))
2398 httpSetField(con
->http
, HTTP_FIELD_CONTENT_LANGUAGE
, con
->language
->language
);
2402 if (!strcmp(type
, "text/html"))
2403 httpSetField(con
->http
, HTTP_FIELD_CONTENT_TYPE
, "text/html; charset=utf-8");
2405 httpSetField(con
->http
, HTTP_FIELD_CONTENT_TYPE
, type
);
2408 return (!httpWriteResponse(con
->http
, code
));
2413 * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs.
2417 cupsdUpdateCGI(void)
2419 char *ptr
, /* Pointer to end of line in buffer */
2420 message
[1024]; /* Pointer to message text */
2421 int loglevel
; /* Log level for message */
2424 while ((ptr
= cupsdStatBufUpdate(CGIStatusBuffer
, &loglevel
,
2425 message
, sizeof(message
))) != NULL
)
2427 if (loglevel
== CUPSD_LOG_INFO
)
2428 cupsdLogMessage(CUPSD_LOG_INFO
, "%s", message
);
2430 if (!strchr(CGIStatusBuffer
->buffer
, '\n'))
2434 if (ptr
== NULL
&& !CGIStatusBuffer
->bufused
)
2437 * Fatal error on pipe - should never happen!
2440 cupsdLogMessage(CUPSD_LOG_CRIT
,
2441 "cupsdUpdateCGI: error reading from CGI error pipe - %s",
2448 * 'cupsdWriteClient()' - Write data to a client as needed.
2452 cupsdWriteClient(cupsd_client_t
*con
) /* I - Client connection */
2454 int bytes
, /* Number of bytes written */
2455 field_col
; /* Current column */
2456 char *bufptr
, /* Pointer into buffer */
2457 *bufend
; /* Pointer to end of buffer */
2458 ipp_state_t ipp_state
; /* IPP state value */
2461 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "con->http=%p", con
->http
);
2462 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
2467 "data_encoding=HTTP_ENCODING_%s, "
2468 "data_remaining=" CUPS_LLFMT
", "
2472 httpError(con
->http
), (int)httpGetReady(con
->http
),
2473 httpStateString(httpGetState(con
->http
)),
2474 httpIsChunked(con
->http
) ? "CHUNKED" : "LENGTH",
2475 CUPS_LLCAST
httpGetLength2(con
->http
),
2477 con
->response
? ippStateString(ippGetState(con
->request
)) : "",
2478 con
->pipe_pid
, con
->file
);
2480 if (httpGetState(con
->http
) != HTTP_STATE_GET_SEND
&&
2481 httpGetState(con
->http
) != HTTP_STATE_POST_SEND
)
2484 * If we get called in the wrong state, then something went wrong with the
2485 * connection and we need to shut it down...
2488 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Closing on unexpected HTTP write state %s.",
2489 httpStateString(httpGetState(con
->http
)));
2490 cupsdCloseClient(con
);
2497 * Make sure we select on the CGI output...
2500 cupsdAddSelect(con
->file
, (cupsd_selfunc_t
)write_pipe
, NULL
, con
);
2502 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Waiting for CGI data.");
2504 if (!con
->file_ready
)
2507 * Try again later when there is CGI output available...
2510 cupsdRemoveSelect(httpGetFd(con
->http
));
2514 con
->file_ready
= 0;
2517 bytes
= (ssize_t
)(sizeof(con
->header
) - (size_t)con
->header_used
);
2519 if (!con
->pipe_pid
&& bytes
> (ssize_t
)httpGetRemaining(con
->http
))
2522 * Limit GET bytes to original size of file (STR #3265)...
2525 bytes
= (ssize_t
)httpGetRemaining(con
->http
);
2528 if (con
->response
&& con
->response
->state
!= IPP_STATE_DATA
)
2530 size_t wused
= httpGetPending(con
->http
); /* Previous write buffer use */
2535 * Write a single attribute or the IPP message header...
2538 ipp_state
= ippWrite(con
->http
, con
->response
);
2541 * If the write buffer has been flushed, stop buffering up attributes...
2544 if (httpGetPending(con
->http
) <= wused
)
2547 while (ipp_state
!= IPP_STATE_DATA
&& ipp_state
!= IPP_STATE_ERROR
);
2549 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
2550 "Writing IPP response, ipp_state=%s, old "
2551 "wused=" CUPS_LLFMT
", new wused=" CUPS_LLFMT
,
2552 ippStateString(ipp_state
),
2553 CUPS_LLCAST wused
, CUPS_LLCAST
httpGetPending(con
->http
));
2555 if (httpGetPending(con
->http
) > 0)
2556 httpFlushWrite(con
->http
);
2558 bytes
= ipp_state
!= IPP_STATE_ERROR
&&
2559 (con
->file
>= 0 || ipp_state
!= IPP_STATE_DATA
);
2561 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
2562 "bytes=%d, http_state=%d, data_remaining=" CUPS_LLFMT
,
2563 (int)bytes
, httpGetState(con
->http
),
2564 CUPS_LLCAST
httpGetLength2(con
->http
));
2566 else if ((bytes
= read(con
->file
, con
->header
+ con
->header_used
, (size_t)bytes
)) > 0)
2568 con
->header_used
+= bytes
;
2570 if (con
->pipe_pid
&& !con
->got_fields
)
2573 * Inspect the data for Content-Type and other fields.
2576 for (bufptr
= con
->header
, bufend
= con
->header
+ con
->header_used
,
2578 !con
->got_fields
&& bufptr
< bufend
;
2581 if (*bufptr
== '\n')
2584 * Send line to client...
2587 if (bufptr
> con
->header
&& bufptr
[-1] == '\r')
2591 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Script header: %s", con
->header
);
2593 if (!con
->sent_header
)
2596 * Handle redirection and CGI status codes...
2599 http_field_t field
; /* HTTP field */
2600 char *value
= strchr(con
->header
, ':');
2601 /* Value of field */
2606 while (isspace(*value
& 255))
2610 field
= httpFieldValue(con
->header
);
2612 if (field
!= HTTP_FIELD_UNKNOWN
&& value
)
2614 httpSetField(con
->http
, field
, value
);
2616 if (field
== HTTP_FIELD_LOCATION
)
2618 con
->pipe_status
= HTTP_STATUS_SEE_OTHER
;
2619 con
->sent_header
= 2;
2622 con
->sent_header
= 1;
2624 else if (!_cups_strcasecmp(con
->header
, "Status") && value
)
2626 con
->pipe_status
= (http_status_t
)atoi(value
);
2627 con
->sent_header
= 2;
2629 else if (!_cups_strcasecmp(con
->header
, "Set-Cookie") && value
)
2631 char *sep
= strchr(value
, ';');
2632 /* Separator between name=value and the rest */
2637 httpSetCookie(con
->http
, value
);
2638 con
->sent_header
= 1;
2646 con
->header_used
-= bufptr
- con
->header
;
2648 if (con
->header_used
> 0)
2649 memmove(con
->header
, bufptr
, (size_t)con
->header_used
);
2651 bufptr
= con
->header
- 1;
2654 * See if the line was empty...
2659 con
->got_fields
= 1;
2661 if (httpGetVersion(con
->http
) == HTTP_VERSION_1_1
&&
2662 !httpGetField(con
->http
, HTTP_FIELD_CONTENT_LENGTH
)[0])
2663 httpSetLength(con
->http
, 0);
2665 if (!cupsdSendHeader(con
, con
->pipe_status
, NULL
, CUPSD_AUTH_NONE
))
2667 cupsdCloseClient(con
);
2674 else if (*bufptr
!= '\r')
2678 if (!con
->got_fields
)
2682 if (con
->header_used
> 0)
2684 if (httpWrite2(con
->http
, con
->header
, (size_t)con
->header_used
) < 0)
2686 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Closing for error %d (%s)",
2687 httpError(con
->http
), strerror(httpError(con
->http
)));
2688 cupsdCloseClient(con
);
2692 if (httpIsChunked(con
->http
))
2693 httpFlushWrite(con
->http
);
2695 con
->bytes
+= con
->header_used
;
2697 if (httpGetState(con
->http
) == HTTP_STATE_WAITING
)
2700 bytes
= con
->header_used
;
2702 con
->header_used
= 0;
2707 (httpGetState(con
->http
) != HTTP_STATE_GET_SEND
&&
2708 httpGetState(con
->http
) != HTTP_STATE_POST_SEND
))
2710 if (!con
->sent_header
&& con
->pipe_pid
)
2711 cupsdSendError(con
, HTTP_STATUS_SERVER_ERROR
, CUPSD_AUTH_NONE
);
2714 cupsdLogRequest(con
, HTTP_STATUS_OK
);
2716 if (httpIsChunked(con
->http
) && (!con
->pipe_pid
|| con
->sent_header
== 1))
2718 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Sending 0-length chunk.");
2720 if (httpWrite2(con
->http
, "", 0) < 0)
2722 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Closing for error %d (%s)",
2723 httpError(con
->http
), strerror(httpError(con
->http
)));
2724 cupsdCloseClient(con
);
2729 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Flushing write buffer.");
2730 httpFlushWrite(con
->http
);
2731 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "New state is %s", httpStateString(httpGetState(con
->http
)));
2734 cupsdAddSelect(httpGetFd(con
->http
), (cupsd_selfunc_t
)cupsdReadClient
, NULL
, con
);
2736 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Waiting for request.");
2740 cupsdRemoveSelect(con
->file
);
2743 cupsdEndProcess(con
->pipe_pid
, 0);
2752 unlink(con
->filename
);
2753 cupsdClearString(&con
->filename
);
2758 ippDelete(con
->request
);
2759 con
->request
= NULL
;
2764 ippDelete(con
->response
);
2765 con
->response
= NULL
;
2768 cupsdClearString(&con
->command
);
2769 cupsdClearString(&con
->options
);
2770 cupsdClearString(&con
->query_string
);
2772 if (!httpGetKeepAlive(con
->http
))
2774 cupsdLogClient(con
, CUPSD_LOG_DEBUG
,
2775 "Closing because Keep-Alive is disabled.");
2776 cupsdCloseClient(con
);
2781 cupsArrayRemove(ActiveClients
, con
);
2782 cupsdSetBusyState();
2789 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
2792 static int /* O - 1 if modified since */
2794 cupsd_client_t
*con
, /* I - Client connection */
2795 struct stat
*filestats
) /* I - File information */
2797 const char *ptr
; /* Pointer into field */
2798 time_t date
; /* Time/date value */
2799 off_t size
; /* Size/length value */
2804 ptr
= httpGetField(con
->http
, HTTP_FIELD_IF_MODIFIED_SINCE
);
2809 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
2810 "check_if_modified "
2811 "filestats=%p(" CUPS_LLFMT
", %d)) If-Modified-Since=\"%s\"",
2812 filestats
, CUPS_LLCAST filestats
->st_size
,
2813 (int)filestats
->st_mtime
, ptr
);
2815 while (*ptr
!= '\0')
2817 while (isspace(*ptr
) || *ptr
== ';')
2820 if (_cups_strncasecmp(ptr
, "length=", 7) == 0)
2823 size
= strtoll(ptr
, NULL
, 10);
2825 while (isdigit(*ptr
))
2828 else if (isalpha(*ptr
))
2830 date
= httpGetDateTime(ptr
);
2831 while (*ptr
!= '\0' && *ptr
!= ';')
2838 return ((size
!= filestats
->st_size
&& size
!= 0) ||
2839 (date
< filestats
->st_mtime
&& date
!= 0) ||
2840 (size
== 0 && date
== 0));
2845 * 'compare_clients()' - Compare two client connections.
2848 static int /* O - Result of comparison */
2849 compare_clients(cupsd_client_t
*a
, /* I - First client */
2850 cupsd_client_t
*b
, /* I - Second client */
2851 void *data
) /* I - User data (not used) */
2866 * 'cupsd_start_tls()' - Start encryption on a connection.
2869 static int /* O - 0 on success, -1 on error */
2870 cupsd_start_tls(cupsd_client_t
*con
, /* I - Client connection */
2871 http_encryption_t e
) /* I - Encryption mode */
2873 if (httpEncryption(con
->http
, e
))
2875 cupsdLogClient(con
, CUPSD_LOG_ERROR
, "Unable to encrypt connection: %s",
2876 cupsLastErrorString());
2880 cupsdLogClient(con
, CUPSD_LOG_INFO
, "Connection now encrypted.");
2883 #endif /* HAVE_SSL */
2887 * 'get_file()' - Get a filename and state info.
2890 static char * /* O - Real filename */
2891 get_file(cupsd_client_t
*con
, /* I - Client connection */
2892 struct stat
*filestats
, /* O - File information */
2893 char *filename
, /* IO - Filename buffer */
2894 size_t len
) /* I - Buffer length */
2896 int status
; /* Status of filesystem calls */
2897 char *ptr
; /* Pointer info filename */
2898 size_t plen
; /* Remaining length after pointer */
2899 char language
[7]; /* Language subdirectory, if any */
2903 * Figure out the real filename...
2908 if (!strncmp(con
->uri
, "/ppd/", 5) && !strchr(con
->uri
+ 5, '/'))
2909 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
);
2910 else if (!strncmp(con
->uri
, "/icons/", 7) && !strchr(con
->uri
+ 7, '/'))
2912 snprintf(filename
, len
, "%s/%s", CacheDir
, con
->uri
+ 7);
2913 if (access(filename
, F_OK
) < 0)
2914 snprintf(filename
, len
, "%s/images/generic.png", DocumentRoot
);
2916 else if (!strncmp(con
->uri
, "/rss/", 5) && !strchr(con
->uri
+ 5, '/'))
2917 snprintf(filename
, len
, "%s/rss/%s", CacheDir
, con
->uri
+ 5);
2918 else if (!strncmp(con
->uri
, "/admin/conf/", 12))
2919 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
+ 11);
2920 else if (!strncmp(con
->uri
, "/admin/log/", 11))
2922 if (!strncmp(con
->uri
+ 11, "access_log", 10) && AccessLog
[0] == '/')
2923 strlcpy(filename
, AccessLog
, len
);
2924 else if (!strncmp(con
->uri
+ 11, "error_log", 9) && ErrorLog
[0] == '/')
2925 strlcpy(filename
, ErrorLog
, len
);
2926 else if (!strncmp(con
->uri
+ 11, "page_log", 8) && PageLog
[0] == '/')
2927 strlcpy(filename
, PageLog
, len
);
2931 else if (con
->language
)
2933 snprintf(language
, sizeof(language
), "/%s", con
->language
->language
);
2934 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
2937 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2939 if ((ptr
= strchr(filename
, '?')) != NULL
)
2943 * Grab the status for this language; if there isn't a language-specific file
2944 * then fallback to the default one...
2947 if ((status
= stat(filename
, filestats
)) != 0 && language
[0] &&
2948 strncmp(con
->uri
, "/icons/", 7) &&
2949 strncmp(con
->uri
, "/ppd/", 5) &&
2950 strncmp(con
->uri
, "/rss/", 5) &&
2951 strncmp(con
->uri
, "/admin/conf/", 12) &&
2952 strncmp(con
->uri
, "/admin/log/", 11))
2955 * Drop the country code...
2959 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
2961 if ((ptr
= strchr(filename
, '?')) != NULL
)
2964 if ((status
= stat(filename
, filestats
)) != 0)
2967 * Drop the language prefix and try the root directory...
2971 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2973 if ((ptr
= strchr(filename
, '?')) != NULL
)
2976 status
= stat(filename
, filestats
);
2981 * If we're found a directory, get the index.html file instead...
2984 if (!status
&& S_ISDIR(filestats
->st_mode
))
2987 * Make sure the URI ends with a slash...
2990 if (con
->uri
[strlen(con
->uri
) - 1] != '/')
2991 strlcat(con
->uri
, "/", sizeof(con
->uri
));
2994 * Find the directory index file, trying every language...
2999 if (status
&& language
[0])
3002 * Try a different language subset...
3006 language
[0] = '\0'; /* Strip country code */
3008 language
[0] = '\0'; /* Strip language */
3012 * Look for the index file...
3015 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
3017 if ((ptr
= strchr(filename
, '?')) != NULL
)
3020 ptr
= filename
+ strlen(filename
);
3021 plen
= len
- (size_t)(ptr
- filename
);
3023 strlcpy(ptr
, "index.html", plen
);
3024 status
= stat(filename
, filestats
);
3029 strlcpy(ptr
, "index.class", plen
);
3030 status
= stat(filename
, filestats
);
3032 #endif /* HAVE_JAVA */
3037 strlcpy(ptr
, "index.pl", plen
);
3038 status
= stat(filename
, filestats
);
3040 #endif /* HAVE_PERL */
3045 strlcpy(ptr
, "index.php", plen
);
3046 status
= stat(filename
, filestats
);
3048 #endif /* HAVE_PHP */
3053 strlcpy(ptr
, "index.pyc", plen
);
3054 status
= stat(filename
, filestats
);
3059 strlcpy(ptr
, "index.py", plen
);
3060 status
= stat(filename
, filestats
);
3062 #endif /* HAVE_PYTHON */
3065 while (status
&& language
[0]);
3068 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
, "get_file filestats=%p, filename=%p, len=" CUPS_LLFMT
", returning \"%s\".", filestats
, filename
, CUPS_LLCAST len
, status
? "(null)" : filename
);
3078 * 'install_cupsd_conf()' - Install a configuration file.
3081 static http_status_t
/* O - Status */
3082 install_cupsd_conf(cupsd_client_t
*con
) /* I - Connection */
3084 char filename
[1024]; /* Configuration filename */
3085 cups_file_t
*in
, /* Input file */
3086 *out
; /* Output file */
3087 char buffer
[16384]; /* Copy buffer */
3088 ssize_t bytes
; /* Number of bytes */
3092 * Open the request file...
3095 if ((in
= cupsFileOpen(con
->filename
, "rb")) == NULL
)
3097 cupsdLogClient(con
, CUPSD_LOG_ERROR
, "Unable to open request file \"%s\": %s",
3098 con
->filename
, strerror(errno
));
3099 return (HTTP_STATUS_SERVER_ERROR
);
3103 * Open the new config file...
3106 if ((out
= cupsdCreateConfFile(ConfigurationFile
, ConfigFilePerm
)) == NULL
)
3109 return (HTTP_STATUS_SERVER_ERROR
);
3112 cupsdLogClient(con
, CUPSD_LOG_INFO
, "Installing config file \"%s\"...",
3116 * Copy from the request to the new config file...
3119 while ((bytes
= cupsFileRead(in
, buffer
, sizeof(buffer
))) > 0)
3120 if (cupsFileWrite(out
, buffer
, (size_t)bytes
) < bytes
)
3122 cupsdLogClient(con
, CUPSD_LOG_ERROR
,
3123 "Unable to copy to config file \"%s\": %s",
3124 ConfigurationFile
, strerror(errno
));
3129 snprintf(filename
, sizeof(filename
), "%s.N", ConfigurationFile
);
3130 cupsdUnlinkOrRemoveFile(filename
);
3132 return (HTTP_STATUS_SERVER_ERROR
);
3136 * Close the files...
3141 if (cupsdCloseCreatedConfFile(out
, ConfigurationFile
))
3142 return (HTTP_STATUS_SERVER_ERROR
);
3145 * Remove the request file...
3148 cupsdUnlinkOrRemoveFile(con
->filename
);
3149 cupsdClearString(&con
->filename
);
3152 * Set the NeedReload flag...
3155 NeedReload
= RELOAD_CUPSD
;
3156 ReloadTime
= time(NULL
);
3159 * Return that the file was created successfully...
3162 return (HTTP_STATUS_CREATED
);
3167 * 'is_cgi()' - Is the resource a CGI script/program?
3170 static int /* O - 1 = CGI, 0 = file */
3171 is_cgi(cupsd_client_t
*con
, /* I - Client connection */
3172 const char *filename
, /* I - Real filename */
3173 struct stat
*filestats
, /* I - File information */
3174 mime_type_t
*type
) /* I - MIME type */
3176 const char *options
; /* Options on URL */
3180 * Get the options, if any...
3183 if ((options
= strchr(con
->uri
, '?')) != NULL
)
3186 cupsdSetStringf(&(con
->query_string
), "QUERY_STRING=%s", options
);
3190 * Check for known types...
3193 if (!type
|| _cups_strcasecmp(type
->super
, "application"))
3195 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3196 "is_cgi filename=\"%s\", filestats=%p, "
3197 "type=%s/%s, returning 0", filename
,
3198 filestats
, type
? type
->super
: "unknown",
3199 type
? type
->type
: "unknown");
3203 if (!_cups_strcasecmp(type
->type
, "x-httpd-cgi") &&
3204 (filestats
->st_mode
& 0111))
3207 * "application/x-httpd-cgi" is a CGI script.
3210 cupsdSetString(&con
->command
, filename
);
3213 cupsdSetStringf(&con
->options
, " %s", options
);
3215 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3216 "is_cgi filename=\"%s\", filestats=%p, "
3217 "type=%s/%s, returning 1", filename
,
3218 filestats
, type
->super
, type
->type
);
3222 else if (!_cups_strcasecmp(type
->type
, "x-httpd-java"))
3225 * "application/x-httpd-java" is a Java servlet.
3228 cupsdSetString(&con
->command
, CUPS_JAVA
);
3231 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3233 cupsdSetStringf(&con
->options
, " %s", filename
);
3235 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3236 "is_cgi filename=\"%s\", filestats=%p, "
3237 "type=%s/%s, returning 1", filename
,
3238 filestats
, type
->super
, type
->type
);
3241 #endif /* HAVE_JAVA */
3243 else if (!_cups_strcasecmp(type
->type
, "x-httpd-perl"))
3246 * "application/x-httpd-perl" is a Perl page.
3249 cupsdSetString(&con
->command
, CUPS_PERL
);
3252 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3254 cupsdSetStringf(&con
->options
, " %s", filename
);
3256 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3257 "is_cgi filename=\"%s\", filestats=%p, "
3258 "type=%s/%s, returning 1", filename
,
3259 filestats
, type
->super
, type
->type
);
3262 #endif /* HAVE_PERL */
3264 else if (!_cups_strcasecmp(type
->type
, "x-httpd-php"))
3267 * "application/x-httpd-php" is a PHP page.
3270 cupsdSetString(&con
->command
, CUPS_PHP
);
3273 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3275 cupsdSetStringf(&con
->options
, " %s", filename
);
3277 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3278 "is_cgi filename=\"%s\", filestats=%p, "
3279 "type=%s/%s, returning 1", filename
,
3280 filestats
, type
->super
, type
->type
);
3283 #endif /* HAVE_PHP */
3285 else if (!_cups_strcasecmp(type
->type
, "x-httpd-python"))
3288 * "application/x-httpd-python" is a Python page.
3291 cupsdSetString(&con
->command
, CUPS_PYTHON
);
3294 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3296 cupsdSetStringf(&con
->options
, " %s", filename
);
3298 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3299 "is_cgi filename=\"%s\", filestats=%p, "
3300 "type=%s/%s, returning 1", filename
,
3301 filestats
, type
->super
, type
->type
);
3304 #endif /* HAVE_PYTHON */
3306 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3307 "is_cgi filename=\"%s\", filestats=%p, "
3308 "type=%s/%s, returning 0", filename
,
3309 filestats
, type
->super
, type
->type
);
3315 * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. "..").
3318 static int /* O - 0 if relative, 1 if absolute */
3319 is_path_absolute(const char *path
) /* I - Input path */
3322 * Check for a leading slash...
3329 * Check for "<" or quotes in the path and reject since this is probably
3330 * someone trying to inject HTML...
3333 if (strchr(path
, '<') != NULL
|| strchr(path
, '\"') != NULL
|| strchr(path
, '\'') != NULL
)
3337 * Check for "/.." in the path...
3340 while ((path
= strstr(path
, "/..")) != NULL
)
3342 if (!path
[3] || path
[3] == '/')
3349 * If we haven't found any relative paths, return 1 indicating an
3358 * 'pipe_command()' - Pipe the output of a command to the remote client.
3361 static int /* O - Process ID */
3362 pipe_command(cupsd_client_t
*con
, /* I - Client connection */
3363 int infile
, /* I - Standard input for command */
3364 int *outfile
, /* O - Standard output for command */
3365 char *command
, /* I - Command to run */
3366 char *options
, /* I - Options for command */
3367 int root
) /* I - Run as root? */
3369 int i
; /* Looping var */
3370 int pid
; /* Process ID */
3371 char *commptr
, /* Command string pointer */
3372 commch
; /* Command string character */
3373 char *uriptr
; /* URI string pointer */
3374 int fds
[2]; /* Pipe FDs */
3375 int argc
; /* Number of arguments */
3376 int envc
; /* Number of environment variables */
3377 char argbuf
[10240], /* Argument buffer */
3378 *argv
[100], /* Argument strings */
3379 *envp
[MAX_ENV
+ 20]; /* Environment variables */
3380 char auth_type
[256], /* AUTH_TYPE environment variable */
3381 content_length
[1024], /* CONTENT_LENGTH environment variable */
3382 content_type
[1024], /* CONTENT_TYPE environment variable */
3383 http_cookie
[32768], /* HTTP_COOKIE environment variable */
3384 http_referer
[1024], /* HTTP_REFERER environment variable */
3385 http_user_agent
[1024], /* HTTP_USER_AGENT environment variable */
3386 lang
[1024], /* LANG environment variable */
3387 path_info
[1024], /* PATH_INFO environment variable */
3388 remote_addr
[1024], /* REMOTE_ADDR environment variable */
3389 remote_host
[1024], /* REMOTE_HOST environment variable */
3390 remote_user
[1024], /* REMOTE_USER environment variable */
3391 script_filename
[1024], /* SCRIPT_FILENAME environment variable */
3392 script_name
[1024], /* SCRIPT_NAME environment variable */
3393 server_name
[1024], /* SERVER_NAME environment variable */
3394 server_port
[1024]; /* SERVER_PORT environment variable */
3395 ipp_attribute_t
*attr
; /* attributes-natural-language attribute */
3399 * Parse a copy of the options string, which is of the form:
3401 * argument+argument+argument
3402 * ?argument+argument+argument
3403 * param=value¶m=value
3404 * ?param=value¶m=value
3405 * /name?argument+argument+argument
3406 * /name?param=value¶m=value
3408 * If the string contains an "=" character after the initial name,
3409 * then we treat it as a HTTP GET form request and make a copy of
3410 * the remaining string for the environment variable.
3412 * The string is always parsed out as command-line arguments, to
3413 * be consistent with Apache...
3416 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3417 "pipe_command infile=%d, outfile=%p, "
3418 "command=\"%s\", options=\"%s\", root=%d",
3419 infile
, outfile
, command
,
3420 options
? options
: "(null)", root
);
3427 if (*commptr
== ' ')
3429 strlcpy(argbuf
, commptr
, sizeof(argbuf
));
3434 if (argbuf
[0] == '/')
3437 * Found some trailing path information, set PATH_INFO...
3440 if ((commptr
= strchr(argbuf
, '?')) == NULL
)
3441 commptr
= argbuf
+ strlen(argbuf
);
3445 snprintf(path_info
, sizeof(path_info
), "PATH_INFO=%s", argbuf
);
3451 path_info
[0] = '\0';
3453 if (*commptr
== ' ')
3457 if (*commptr
== '?' && con
->operation
== HTTP_STATE_GET
&& !con
->query_string
)
3460 cupsdSetStringf(&(con
->query_string
), "QUERY_STRING=%s", commptr
);
3467 argv
[argc
++] = commptr
;
3469 for (; *commptr
&& argc
< 99; commptr
++)
3472 * Break arguments whenever we see a + or space...
3475 if (*commptr
== ' ' || *commptr
== '+')
3477 while (*commptr
== ' ' || *commptr
== '+')
3481 * If we don't have a blank string, save it as another argument...
3486 argv
[argc
] = commptr
;
3492 else if (*commptr
== '%' && isxdigit(commptr
[1] & 255) &&
3493 isxdigit(commptr
[2] & 255))
3496 * Convert the %xx notation to the individual character.
3499 if (commptr
[1] >= '0' && commptr
[1] <= '9')
3500 *commptr
= (char)((commptr
[1] - '0') << 4);
3502 *commptr
= (char)((tolower(commptr
[1]) - 'a' + 10) << 4);
3504 if (commptr
[2] >= '0' && commptr
[2] <= '9')
3505 *commptr
|= commptr
[2] - '0';
3507 *commptr
|= tolower(commptr
[2]) - 'a' + 10;
3509 _cups_strcpy(commptr
+ 1, commptr
+ 3);
3512 * Check for a %00 and break if that is the case...
3524 * Setup the environment variables as needed...
3527 if (con
->username
[0])
3529 snprintf(auth_type
, sizeof(auth_type
), "AUTH_TYPE=%s",
3530 httpGetField(con
->http
, HTTP_FIELD_AUTHORIZATION
));
3532 if ((uriptr
= strchr(auth_type
+ 10, ' ')) != NULL
)
3536 auth_type
[0] = '\0';
3539 (attr
= ippFindAttribute(con
->request
, "attributes-natural-language",
3540 IPP_TAG_LANGUAGE
)) != NULL
)
3542 switch (strlen(attr
->values
[0].string
.text
))
3546 * This is an unknown or badly formatted language code; use
3547 * the POSIX locale...
3550 strlcpy(lang
, "LANG=C", sizeof(lang
));
3555 * Just the language code (ll)...
3558 snprintf(lang
, sizeof(lang
), "LANG=%s.UTF8",
3559 attr
->values
[0].string
.text
);
3564 * Language and country code (ll-cc)...
3567 snprintf(lang
, sizeof(lang
), "LANG=%c%c_%c%c.UTF8",
3568 attr
->values
[0].string
.text
[0],
3569 attr
->values
[0].string
.text
[1],
3570 toupper(attr
->values
[0].string
.text
[3] & 255),
3571 toupper(attr
->values
[0].string
.text
[4] & 255));
3575 else if (con
->language
)
3576 snprintf(lang
, sizeof(lang
), "LANG=%s.UTF8", con
->language
->language
);
3578 strlcpy(lang
, "LANG=C", sizeof(lang
));
3580 strlcpy(remote_addr
, "REMOTE_ADDR=", sizeof(remote_addr
));
3581 httpAddrString(httpGetAddress(con
->http
), remote_addr
+ 12,
3582 sizeof(remote_addr
) - 12);
3584 snprintf(remote_host
, sizeof(remote_host
), "REMOTE_HOST=%s",
3585 httpGetHostname(con
->http
, NULL
, 0));
3587 snprintf(script_name
, sizeof(script_name
), "SCRIPT_NAME=%s", con
->uri
);
3588 if ((uriptr
= strchr(script_name
, '?')) != NULL
)
3591 snprintf(script_filename
, sizeof(script_filename
), "SCRIPT_FILENAME=%s%s",
3592 DocumentRoot
, script_name
+ 12);
3594 sprintf(server_port
, "SERVER_PORT=%d", con
->serverport
);
3596 if (httpGetField(con
->http
, HTTP_FIELD_HOST
)[0])
3598 char *nameptr
; /* Pointer to ":port" */
3600 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s",
3601 httpGetField(con
->http
, HTTP_FIELD_HOST
));
3602 if ((nameptr
= strrchr(server_name
, ':')) != NULL
&& !strchr(nameptr
, ']'))
3603 *nameptr
= '\0'; /* Strip trailing ":port" */
3606 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s",
3609 envc
= cupsdLoadEnv(envp
, (int)(sizeof(envp
) / sizeof(envp
[0])));
3612 envp
[envc
++] = auth_type
;
3614 envp
[envc
++] = lang
;
3615 envp
[envc
++] = "REDIRECT_STATUS=1";
3616 envp
[envc
++] = "GATEWAY_INTERFACE=CGI/1.1";
3617 envp
[envc
++] = server_name
;
3618 envp
[envc
++] = server_port
;
3619 envp
[envc
++] = remote_addr
;
3620 envp
[envc
++] = remote_host
;
3621 envp
[envc
++] = script_name
;
3622 envp
[envc
++] = script_filename
;
3625 envp
[envc
++] = path_info
;
3627 if (con
->username
[0])
3629 snprintf(remote_user
, sizeof(remote_user
), "REMOTE_USER=%s", con
->username
);
3631 envp
[envc
++] = remote_user
;
3634 if (httpGetVersion(con
->http
) == HTTP_VERSION_1_1
)
3635 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.1";
3636 else if (httpGetVersion(con
->http
) == HTTP_VERSION_1_0
)
3637 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.0";
3639 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/0.9";
3641 if (httpGetCookie(con
->http
))
3643 snprintf(http_cookie
, sizeof(http_cookie
), "HTTP_COOKIE=%s",
3644 httpGetCookie(con
->http
));
3645 envp
[envc
++] = http_cookie
;
3648 if (httpGetField(con
->http
, HTTP_FIELD_USER_AGENT
)[0])
3650 snprintf(http_user_agent
, sizeof(http_user_agent
), "HTTP_USER_AGENT=%s",
3651 httpGetField(con
->http
, HTTP_FIELD_USER_AGENT
));
3652 envp
[envc
++] = http_user_agent
;
3655 if (httpGetField(con
->http
, HTTP_FIELD_REFERER
)[0])
3657 snprintf(http_referer
, sizeof(http_referer
), "HTTP_REFERER=%s",
3658 httpGetField(con
->http
, HTTP_FIELD_REFERER
));
3659 envp
[envc
++] = http_referer
;
3662 if (con
->operation
== HTTP_STATE_GET
)
3664 envp
[envc
++] = "REQUEST_METHOD=GET";
3666 if (con
->query_string
)
3669 * Add GET form variables after ?...
3672 envp
[envc
++] = con
->query_string
;
3675 envp
[envc
++] = "QUERY_STRING=";
3679 sprintf(content_length
, "CONTENT_LENGTH=" CUPS_LLFMT
,
3680 CUPS_LLCAST con
->bytes
);
3681 snprintf(content_type
, sizeof(content_type
), "CONTENT_TYPE=%s",
3682 httpGetField(con
->http
, HTTP_FIELD_CONTENT_TYPE
));
3684 envp
[envc
++] = "REQUEST_METHOD=POST";
3685 envp
[envc
++] = content_length
;
3686 envp
[envc
++] = content_type
;
3690 * Tell the CGI if we are using encryption...
3693 if (httpIsEncrypted(con
->http
))
3694 envp
[envc
++] = "HTTPS=ON";
3697 * Terminate the environment array...
3702 if (LogLevel
>= CUPSD_LOG_DEBUG
)
3704 for (i
= 0; i
< argc
; i
++)
3705 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3706 "[CGI] argv[%d] = \"%s\"", i
, argv
[i
]);
3707 for (i
= 0; i
< envc
; i
++)
3708 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3709 "[CGI] envp[%d] = \"%s\"", i
, envp
[i
]);
3713 * Create a pipe for the output...
3716 if (cupsdOpenPipe(fds
))
3718 cupsdLogMessage(CUPSD_LOG_ERROR
, "[CGI] Unable to create pipe for %s - %s",
3719 argv
[0], strerror(errno
));
3724 * Then execute the command...
3727 if (cupsdStartProcess(command
, argv
, envp
, infile
, fds
[1], CGIPipes
[1],
3728 -1, -1, root
, DefaultProfile
, NULL
, &pid
) < 0)
3731 * Error - can't fork!
3734 cupsdLogMessage(CUPSD_LOG_ERROR
, "[CGI] Unable to start %s - %s", argv
[0],
3737 cupsdClosePipe(fds
);
3743 * Fork successful - return the PID...
3746 if (con
->username
[0])
3747 cupsdAddCert(pid
, con
->username
, con
->type
);
3749 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[CGI] Started %s (PID %d)", command
, pid
);
3760 * 'valid_host()' - Is the Host: field valid?
3763 static int /* O - 1 if valid, 0 if not */
3764 valid_host(cupsd_client_t
*con
) /* I - Client connection */
3766 cupsd_alias_t
*a
; /* Current alias */
3767 cupsd_netif_t
*netif
; /* Current network interface */
3768 const char *end
; /* End character */
3769 char *ptr
; /* Pointer into host value */
3773 * Copy the Host: header for later use...
3776 strlcpy(con
->clientname
, httpGetField(con
->http
, HTTP_FIELD_HOST
),
3777 sizeof(con
->clientname
));
3778 if ((ptr
= strrchr(con
->clientname
, ':')) != NULL
&& !strchr(ptr
, ']'))
3781 con
->clientport
= atoi(ptr
);
3784 con
->clientport
= con
->serverport
;
3790 if (httpAddrLocalhost(httpGetAddress(con
->http
)))
3793 * Only allow "localhost" or the equivalent IPv4 or IPv6 numerical
3794 * addresses when accessing CUPS via the loopback interface...
3797 return (!_cups_strcasecmp(con
->clientname
, "localhost") ||
3798 !_cups_strcasecmp(con
->clientname
, "localhost.") ||
3800 !_cups_strcasecmp(con
->clientname
, "localhost.localdomain") ||
3801 #endif /* __linux */
3802 !strcmp(con
->clientname
, "127.0.0.1") ||
3803 !strcmp(con
->clientname
, "[::1]"));
3806 #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
3808 * Check if the hostname is something.local (Bonjour); if so, allow it.
3811 if ((end
= strrchr(con
->clientname
, '.')) != NULL
&& end
> con
->clientname
&&
3815 * "." on end, work back to second-to-last "."...
3818 for (end
--; end
> con
->clientname
&& *end
!= '.'; end
--);
3821 if (end
&& (!_cups_strcasecmp(end
, ".local") ||
3822 !_cups_strcasecmp(end
, ".local.")))
3824 #endif /* HAVE_DNSSD || HAVE_AVAHI */
3827 * Check if the hostname is an IP address...
3830 if (isdigit(con
->clientname
[0] & 255) || con
->clientname
[0] == '[')
3833 * Possible IPv4/IPv6 address...
3836 http_addrlist_t
*addrlist
; /* List of addresses */
3839 if ((addrlist
= httpAddrGetList(con
->clientname
, AF_UNSPEC
, NULL
)) != NULL
)
3842 * Good IPv4/IPv6 address...
3845 httpAddrFreeList(addrlist
);
3851 * Check for (alias) name matches...
3854 for (a
= (cupsd_alias_t
*)cupsArrayFirst(ServerAlias
);
3856 a
= (cupsd_alias_t
*)cupsArrayNext(ServerAlias
))
3859 * "ServerAlias *" allows all host values through...
3862 if (!strcmp(a
->name
, "*"))
3865 if (!_cups_strncasecmp(con
->clientname
, a
->name
, a
->namelen
))
3868 * Prefix matches; check the character at the end - it must be "." or nul.
3871 end
= con
->clientname
+ a
->namelen
;
3873 if (!*end
|| (*end
== '.' && !end
[1]))
3878 #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
3879 for (a
= (cupsd_alias_t
*)cupsArrayFirst(DNSSDAlias
);
3881 a
= (cupsd_alias_t
*)cupsArrayNext(DNSSDAlias
))
3884 * "ServerAlias *" allows all host values through...
3887 if (!strcmp(a
->name
, "*"))
3890 if (!_cups_strncasecmp(con
->clientname
, a
->name
, a
->namelen
))
3893 * Prefix matches; check the character at the end - it must be "." or nul.
3896 end
= con
->clientname
+ a
->namelen
;
3898 if (!*end
|| (*end
== '.' && !end
[1]))
3902 #endif /* HAVE_DNSSD || HAVE_AVAHI */
3905 * Check for interface hostname matches...
3908 for (netif
= (cupsd_netif_t
*)cupsArrayFirst(NetIFList
);
3910 netif
= (cupsd_netif_t
*)cupsArrayNext(NetIFList
))
3912 if (!_cups_strncasecmp(con
->clientname
, netif
->hostname
, netif
->hostlen
))
3915 * Prefix matches; check the character at the end - it must be "." or nul.
3918 end
= con
->clientname
+ netif
->hostlen
;
3920 if (!*end
|| (*end
== '.' && !end
[1]))
3930 * 'write_file()' - Send a file via HTTP.
3933 static int /* O - 0 on failure, 1 on success */
3934 write_file(cupsd_client_t
*con
, /* I - Client connection */
3935 http_status_t code
, /* I - HTTP status */
3936 char *filename
, /* I - Filename */
3937 char *type
, /* I - File type */
3938 struct stat
*filestats
) /* O - File information */
3940 con
->file
= open(filename
, O_RDONLY
);
3942 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
,
3943 "write_file code=%d, filename=\"%s\" (%d), "
3944 "type=\"%s\", filestats=%p",
3945 code
, filename
, con
->file
, type
? type
: "(null)", filestats
);
3950 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
3953 con
->sent_header
= 1;
3955 httpClearFields(con
->http
);
3957 httpSetLength(con
->http
, (size_t)filestats
->st_size
);
3959 httpSetField(con
->http
, HTTP_FIELD_LAST_MODIFIED
,
3960 httpGetDateString(filestats
->st_mtime
));
3962 if (!cupsdSendHeader(con
, code
, type
, CUPSD_AUTH_NONE
))
3965 cupsdAddSelect(httpGetFd(con
->http
), NULL
, (cupsd_selfunc_t
)cupsdWriteClient
, con
);
3967 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "Sending file.");
3974 * 'write_pipe()' - Flag that data is available on the CGI pipe.
3978 write_pipe(cupsd_client_t
*con
) /* I - Client connection */
3980 cupsdLogClient(con
, CUPSD_LOG_DEBUG2
, "write_pipe CGI output on fd %d",
3983 con
->file_ready
= 1;
3985 cupsdRemoveSelect(con
->file
);
3986 cupsdAddSelect(httpGetFd(con
->http
), NULL
, (cupsd_selfunc_t
)cupsdWriteClient
, con
);
3988 cupsdLogClient(con
, CUPSD_LOG_DEBUG
, "CGI data ready to be sent.");