2 * "$Id: client.c 11642 2014-02-27 15:57:59Z msweet $"
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...
27 #endif /* __APPLE__ */
30 #endif /* HAVE_TCPD_H */
37 static const char * const http_states
[] =
38 { /* HTTP state strings */
43 "HTTP_STATE_GET_SEND",
46 "HTTP_STATE_POST_RECV",
47 "HTTP_STATE_POST_SEND",
49 "HTTP_STATE_PUT_RECV",
54 "HTTP_STATE_UNKNOWN_METHOD",
55 "HTTP_STATE_UNKNOWN_VERSION"
57 static const char * const ipp_states
[] =
58 { /* IPP state strings */
70 static int check_if_modified(cupsd_client_t
*con
,
71 struct stat
*filestats
);
72 static int compare_clients(cupsd_client_t
*a
, cupsd_client_t
*b
,
74 static int data_ready(cupsd_client_t
*con
);
75 static char *get_file(cupsd_client_t
*con
, struct stat
*filestats
,
76 char *filename
, int len
);
77 static http_status_t
install_cupsd_conf(cupsd_client_t
*con
);
78 static int is_cgi(cupsd_client_t
*con
, const char *filename
,
79 struct stat
*filestats
, mime_type_t
*type
);
80 static int is_path_absolute(const char *path
);
81 static int pipe_command(cupsd_client_t
*con
, int infile
, int *outfile
,
82 char *command
, char *options
, int root
);
83 static int valid_host(cupsd_client_t
*con
);
84 static int write_file(cupsd_client_t
*con
, http_status_t code
,
85 char *filename
, char *type
,
86 struct stat
*filestats
);
87 static void write_pipe(cupsd_client_t
*con
);
91 * 'cupsdAcceptClient()' - Accept a new client.
95 cupsdAcceptClient(cupsd_listener_t
*lis
)/* I - Listener socket */
97 int count
; /* Count of connections on a host */
98 int val
; /* Parameter value */
99 cupsd_client_t
*con
, /* New client pointer */
100 *tempcon
; /* Temporary client pointer */
101 http_addrlist_t
*addrlist
, /* List of adddresses for host */
102 *addr
; /* Current address */
103 socklen_t addrlen
; /* Length of address */
104 char *hostname
; /* Hostname for address */
105 http_addr_t temp
; /* Temporary address variable */
106 static time_t last_dos
= 0; /* Time of last DoS attack */
108 struct request_info wrap_req
; /* TCP wrappers request information */
109 #endif /* HAVE_TCPD_H */
112 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
113 "cupsdAcceptClient(lis=%p(%d)) Clients=%d",
114 lis
, lis
->fd
, cupsArrayCount(Clients
));
117 * Make sure we don't have a full set of clients already...
120 if (cupsArrayCount(Clients
) == MaxClients
)
124 * Get a pointer to the next available client...
128 Clients
= cupsArrayNew(NULL
, NULL
);
132 cupsdLogMessage(CUPSD_LOG_ERROR
,
133 "Unable to allocate memory for clients array!");
134 cupsdPauseListening();
139 ActiveClients
= cupsArrayNew((cups_array_func_t
)compare_clients
, NULL
);
143 cupsdLogMessage(CUPSD_LOG_ERROR
,
144 "Unable to allocate memory for active clients array!");
145 cupsdPauseListening();
149 if ((con
= calloc(1, sizeof(cupsd_client_t
))) == NULL
)
151 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to allocate memory for client!");
152 cupsdPauseListening();
157 con
->http
.activity
= time(NULL
);
158 con
->http
.hostaddr
= &(con
->clientaddr
);
159 con
->http
.wait_value
= 10000;
160 con
->http
.mode
= _HTTP_MODE_SERVER
;
163 * Accept the client and get the remote address...
166 addrlen
= sizeof(http_addr_t
);
168 if ((con
->http
.fd
= accept(lis
->fd
, (struct sockaddr
*)con
->http
.hostaddr
,
171 if (errno
== ENFILE
|| errno
== EMFILE
)
172 cupsdPauseListening();
174 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to accept client connection - %s.",
182 * Save the connected port number...
185 _httpAddrSetPort(con
->http
.hostaddr
, httpAddrPort(&(lis
->address
)));
189 * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we
190 * can more easily use...
193 if (lis
->address
.addr
.sa_family
== AF_INET6
&&
194 con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[0] == 0 &&
195 con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[1] == 0 &&
196 ntohl(con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[2]) == 0xffff)
197 con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[2] = 0;
198 #endif /* AF_INET6 */
201 * Check the number of clients on the same address...
204 for (count
= 0, tempcon
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
206 tempcon
= (cupsd_client_t
*)cupsArrayNext(Clients
))
207 if (httpAddrEqual(tempcon
->http
.hostaddr
, con
->http
.hostaddr
))
210 if (count
>= MaxClientsPerHost
)
214 if (count
>= MaxClientsPerHost
)
216 if ((time(NULL
) - last_dos
) >= 60)
218 last_dos
= time(NULL
);
219 cupsdLogMessage(CUPSD_LOG_WARN
,
220 "Possible DoS attack - more than %d clients connecting "
223 httpAddrString(con
->http
.hostaddr
, con
->http
.hostname
,
224 sizeof(con
->http
.hostname
)));
228 closesocket(con
->http
.fd
);
238 * Get the hostname or format the IP address as needed...
241 if (httpAddrLocalhost(con
->http
.hostaddr
))
244 * Map accesses from the loopback interface to "localhost"...
247 strlcpy(con
->http
.hostname
, "localhost", sizeof(con
->http
.hostname
));
248 hostname
= con
->http
.hostname
;
253 * Map accesses from the same host to the server name.
257 hostname
= httpAddrLookup(con
->http
.hostaddr
, con
->http
.hostname
,
258 sizeof(con
->http
.hostname
));
262 httpAddrString(con
->http
.hostaddr
, con
->http
.hostname
,
263 sizeof(con
->http
.hostname
));
267 if (hostname
== NULL
&& HostNameLookups
== 2)
270 * Can't have an unresolved IP address with double-lookups enabled...
274 closesocket(con
->http
.fd
);
279 cupsdLogMessage(CUPSD_LOG_WARN
,
280 "Name lookup failed - connection from %s closed!",
287 if (HostNameLookups
== 2)
290 * Do double lookups as needed...
293 if ((addrlist
= httpAddrGetList(con
->http
.hostname
, AF_UNSPEC
, NULL
))
297 * See if the hostname maps to the same IP address...
300 for (addr
= addrlist
; addr
; addr
= addr
->next
)
301 if (httpAddrEqual(con
->http
.hostaddr
, &(addr
->addr
)))
307 httpAddrFreeList(addrlist
);
312 * Can't have a hostname that doesn't resolve to the same IP address
313 * with double-lookups enabled...
317 closesocket(con
->http
.fd
);
322 cupsdLogMessage(CUPSD_LOG_WARN
,
323 "IP lookup failed - connection from %s closed!",
332 * See if the connection is denied by TCP wrappers...
335 request_init(&wrap_req
, RQ_DAEMON
, "cupsd", RQ_FILE
, con
->http
.fd
, NULL
);
338 if (!hosts_access(&wrap_req
))
341 closesocket(con
->http
.fd
);
346 cupsdLogMessage(CUPSD_LOG_WARN
,
347 "Connection from %s refused by /etc/hosts.allow and "
348 "/etc/hosts.deny rules.", con
->http
.hostname
);
352 #endif /* HAVE_TCPD_H */
355 if (con
->http
.hostaddr
->addr
.sa_family
== AF_LOCAL
)
358 socklen_t peersize
; /* Size of peer credentials */
359 pid_t peerpid
; /* Peer process ID */
360 char name
[256]; /* Name of process */
362 peersize
= sizeof(peerpid
);
363 if (!getsockopt(con
->http
.fd
, SOL_LOCAL
, LOCAL_PEERPID
, &peerpid
,
366 if (!proc_name(peerpid
, name
, sizeof(name
)))
367 cupsdLogMessage(CUPSD_LOG_DEBUG
,
368 "[Client %d] Accepted from %s (Domain ???[%d])",
369 con
->http
.fd
, con
->http
.hostname
, (int)peerpid
);
371 cupsdLogMessage(CUPSD_LOG_DEBUG
,
372 "[Client %d] Accepted from %s (Domain %s[%d])",
373 con
->http
.fd
, con
->http
.hostname
, name
, (int)peerpid
);
376 # endif /* __APPLE__ */
378 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Accepted from %s (Domain)",
379 con
->http
.fd
, con
->http
.hostname
);
382 #endif /* AF_LOCAL */
383 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Accepted from %s:%d (IPv%d)",
384 con
->http
.fd
, con
->http
.hostname
,
385 httpAddrPort(con
->http
.hostaddr
),
386 _httpAddrFamily(con
->http
.hostaddr
) == AF_INET
? 4 : 6);
389 * Get the local address the client connected to...
392 addrlen
= sizeof(temp
);
393 if (getsockname(con
->http
.fd
, (struct sockaddr
*)&temp
, &addrlen
))
395 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to get local address - %s",
398 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
399 con
->serverport
= LocalPort
;
402 else if (_httpAddrFamily(&temp
) == AF_LOCAL
)
404 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
405 con
->serverport
= LocalPort
;
407 #endif /* AF_LOCAL */
410 if (httpAddrLocalhost(&temp
))
411 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
412 else if (HostNameLookups
)
413 httpAddrLookup(&temp
, con
->servername
, sizeof(con
->servername
));
415 httpAddrString(&temp
, con
->servername
, sizeof(con
->servername
));
417 con
->serverport
= httpAddrPort(&(lis
->address
));
421 * Add the connection to the array of active clients...
424 cupsArrayAdd(Clients
, con
);
427 * Using TCP_NODELAY improves responsiveness, especially on systems with a slow
428 * loopback interface. Since we write large buffers when sending print files
429 * and requests there shouldn't be any performance penalty for this...
433 setsockopt(con
->http
.fd
, IPPROTO_TCP
, TCP_NODELAY
, &val
, sizeof(val
));
436 * Close this file on all execs...
439 fcntl(con
->http
.fd
, F_SETFD
, fcntl(con
->http
.fd
, F_GETFD
) | FD_CLOEXEC
);
442 * Add the socket to the server select.
445 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
, NULL
, con
);
447 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Waiting for request.",
451 * Temporarily suspend accept()'s until we lose a client...
454 if (cupsArrayCount(Clients
) == MaxClients
)
455 cupsdPauseListening();
459 * See if we are connecting on a secure port...
462 if (lis
->encryption
== HTTP_ENCRYPT_ALWAYS
)
465 * https connection; go secure...
468 con
->http
.encryption
= HTTP_ENCRYPT_ALWAYS
;
470 if (!cupsdStartTLS(con
))
471 cupsdCloseClient(con
);
475 #endif /* HAVE_SSL */
480 * 'cupsdCloseAllClients()' - Close all remote clients immediately.
484 cupsdCloseAllClients(void)
486 cupsd_client_t
*con
; /* Current client */
489 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "cupsdCloseAllClients() Clients=%d",
490 cupsArrayCount(Clients
));
492 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
494 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
495 if (cupsdCloseClient(con
))
496 cupsdCloseClient(con
);
501 * 'cupsdCloseClient()' - Close a remote client.
504 int /* O - 1 if partial close, 0 if fully closed */
505 cupsdCloseClient(cupsd_client_t
*con
) /* I - Client to close */
507 int partial
; /* Do partial close for SSL? */
509 #elif defined(HAVE_GNUTLS)
510 # elif defined(HAVE_CDSASSL)
511 #endif /* HAVE_LIBSSL */
514 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Closing connection.",
518 * Flush pending writes before closing...
521 httpFlushWrite(HTTP(con
));
527 * Shutdown encryption as needed...
536 #endif /* HAVE_SSL */
538 if (con
->pipe_pid
!= 0)
541 * Stop any CGI process...
544 cupsdEndProcess(con
->pipe_pid
, 1);
550 cupsdRemoveSelect(con
->file
);
557 * Close the socket and clear the file from the input set for select()...
560 if (con
->http
.fd
>= 0)
562 cupsArrayRemove(ActiveClients
, con
);
568 * Only do a partial close so that the encrypted client gets everything.
571 shutdown(con
->http
.fd
, 0);
572 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
, NULL
, con
);
574 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Waiting for socket close.",
580 * Shut the socket down fully...
583 cupsdRemoveSelect(con
->http
.fd
);
595 if (con
->http
.input_set
)
596 free(con
->http
.input_set
);
598 httpClearCookie(HTTP(con
));
599 httpClearFields(HTTP(con
));
601 cupsdClearString(&con
->filename
);
602 cupsdClearString(&con
->command
);
603 cupsdClearString(&con
->options
);
604 cupsdClearString(&con
->query_string
);
608 ippDelete(con
->request
);
614 ippDelete(con
->response
);
615 con
->response
= NULL
;
620 cupsLangFree(con
->language
);
621 con
->language
= NULL
;
624 #ifdef HAVE_AUTHORIZATION_H
627 AuthorizationFree(con
->authref
, kAuthorizationFlagDefaults
);
630 #endif /* HAVE_AUTHORIZATION_H */
633 * Re-enable new client connections if we are going back under the
637 if (cupsArrayCount(Clients
) == MaxClients
)
638 cupsdResumeListening();
641 * Compact the list of clients as necessary...
644 cupsArrayRemove(Clients
, con
);
654 * 'cupsdFlushHeader()' - Flush the header fields to the client.
657 int /* I - Bytes written or -1 on error */
658 cupsdFlushHeader(cupsd_client_t
*con
) /* I - Client to flush to */
660 int bytes
= httpFlushWrite(HTTP(con
));
662 con
->http
.data_encoding
= HTTP_ENCODING_LENGTH
;
669 * 'cupsdReadClient()' - Read data from a client.
673 cupsdReadClient(cupsd_client_t
*con
) /* I - Client to read from */
675 char line
[32768], /* Line from client... */
676 operation
[64], /* Operation code from socket */
677 version
[64], /* HTTP version number string */
678 locale
[64], /* Locale */
679 *ptr
; /* Pointer into strings */
680 int major
, minor
; /* HTTP version numbers */
681 http_status_t status
; /* Transfer status */
682 ipp_state_t ipp_state
; /* State of IPP transfer */
683 int bytes
; /* Number of bytes to POST */
684 char *filename
; /* Name of file for GET/HEAD */
685 char buf
[1024]; /* Buffer for real filename */
686 struct stat filestats
; /* File information */
687 mime_type_t
*type
; /* MIME type of file */
688 cupsd_printer_t
*p
; /* Printer */
689 static unsigned request_id
= 0; /* Request ID for temp files */
692 status
= HTTP_CONTINUE
;
694 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
695 "[Client %d] cupsdReadClient "
699 "data_encoding=HTTP_ENCODING_%s, "
700 "data_remaining=" CUPS_LLFMT
", "
703 con
->http
.fd
, con
->http
.error
, con
->http
.used
,
704 http_states
[con
->http
.state
+ 1],
705 con
->http
.data_encoding
== HTTP_ENCODING_CHUNKED
?
706 "CHUNKED" : "LENGTH",
707 CUPS_LLCAST con
->http
.data_remaining
,
709 con
->request
? ipp_states
[con
->request
->state
] : "",
716 * Automatically check for a SSL/TLS handshake...
721 if (recv(con
->http
.fd
, buf
, 1, MSG_PEEK
) == 1 &&
722 (!buf
[0] || !strchr("DGHOPT", buf
[0])))
725 * Encrypt this connection...
728 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
729 "[Client %d] Saw first byte %02X, auto-negotiating "
730 "SSL/TLS session.", con
->http
.fd
, buf
[0] & 255);
732 if (!cupsdStartTLS(con
))
733 cupsdCloseClient(con
);
738 #endif /* HAVE_SSL */
740 switch (con
->http
.state
)
742 case HTTP_STATE_WAITING
:
744 * See if we've received a request line...
747 if (httpGets(line
, sizeof(line
) - 1, HTTP(con
)) == NULL
)
749 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
750 cupsdLogMessage(CUPSD_LOG_DEBUG
,
751 "[Client %d] HTTP_STATE_WAITING Closing for error %d "
752 "(%s)", con
->http
.fd
, con
->http
.error
,
753 strerror(con
->http
.error
));
755 cupsdLogMessage(CUPSD_LOG_DEBUG
,
756 "[Client %d] HTTP_STATE_WAITING Closing on EOF",
759 cupsdCloseClient(con
);
764 * Ignore blank request lines...
771 * Clear other state variables...
774 httpClearFields(HTTP(con
));
776 con
->http
.activity
= time(NULL
);
777 con
->http
.version
= HTTP_1_0
;
778 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
779 con
->http
.data_encoding
= HTTP_ENCODING_LENGTH
;
780 con
->http
.data_remaining
= 0;
781 con
->http
._data_remaining
= 0;
782 con
->operation
= HTTP_STATE_WAITING
;
787 con
->username
[0] = '\0';
788 con
->password
[0] = '\0';
791 cupsdClearString(&con
->command
);
792 cupsdClearString(&con
->options
);
793 cupsdClearString(&con
->query_string
);
797 ippDelete(con
->request
);
803 ippDelete(con
->response
);
804 con
->response
= NULL
;
809 cupsLangFree(con
->language
);
810 con
->language
= NULL
;
816 #endif /* HAVE_GSSAPI */
819 * Grab the request line...
822 switch (sscanf(line
, "%63s%1023s%63s", operation
, con
->uri
, version
))
827 cupsdLogMessage(CUPSD_LOG_ERROR
,
828 "[Client %d] Bad request line \"%s\" from %s.",
830 _httpEncodeURI(buf
, line
, sizeof(buf
)),
832 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
833 cupsdCloseClient(con
);
837 con
->http
.version
= HTTP_0_9
;
840 if (sscanf(version
, "HTTP/%d.%d", &major
, &minor
) != 2)
842 cupsdLogMessage(CUPSD_LOG_ERROR
,
843 "[Client %d] Bad request line \"%s\" from %s.",
845 _httpEncodeURI(buf
, line
, sizeof(buf
)),
847 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
848 cupsdCloseClient(con
);
854 con
->http
.version
= (http_version_t
)(major
* 100 + minor
);
855 if (con
->http
.version
== HTTP_1_1
&& KeepAlive
)
856 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
858 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
862 cupsdLogMessage(CUPSD_LOG_ERROR
,
863 "[Client %d] Unsupported request line \"%s\" "
864 "from %s.", con
->http
.fd
,
865 _httpEncodeURI(buf
, line
, sizeof(buf
)),
867 cupsdSendError(con
, HTTP_NOT_SUPPORTED
, CUPSD_AUTH_NONE
);
868 cupsdCloseClient(con
);
875 * Handle full URLs in the request line...
878 if (strcmp(con
->uri
, "*"))
880 char scheme
[HTTP_MAX_URI
], /* Method/scheme */
881 userpass
[HTTP_MAX_URI
], /* Username:password */
882 hostname
[HTTP_MAX_URI
], /* Hostname */
883 resource
[HTTP_MAX_URI
]; /* Resource path */
884 int port
; /* Port number */
888 * Separate the URI into its components...
891 httpSeparateURI(HTTP_URI_CODING_MOST
, con
->uri
,
892 scheme
, sizeof(scheme
),
893 userpass
, sizeof(userpass
),
894 hostname
, sizeof(hostname
), &port
,
895 resource
, sizeof(resource
));
898 * Only allow URIs with the servername, localhost, or an IP
902 if (strcmp(scheme
, "file") &&
903 _cups_strcasecmp(hostname
, ServerName
) &&
904 _cups_strcasecmp(hostname
, "localhost") &&
905 !isdigit(hostname
[0]) && hostname
[0] != '[')
908 * Nope, we don't do proxies...
911 cupsdLogMessage(CUPSD_LOG_ERROR
,
912 "[Client %d] Bad URI \"%s\" in request.",
913 con
->http
.fd
, con
->uri
);
914 cupsdSendError(con
, HTTP_METHOD_NOT_ALLOWED
, CUPSD_AUTH_NONE
);
915 cupsdCloseClient(con
);
920 * Copy the resource portion back into the URI; both resource and
921 * con->uri are HTTP_MAX_URI bytes in size...
924 strlcpy(con
->uri
, resource
, sizeof(con
->uri
));
928 * Process the request...
931 if (!strcmp(operation
, "GET"))
932 con
->http
.state
= HTTP_STATE_GET
;
933 else if (!strcmp(operation
, "PUT"))
934 con
->http
.state
= HTTP_STATE_PUT
;
935 else if (!strcmp(operation
, "POST"))
936 con
->http
.state
= HTTP_STATE_POST
;
937 else if (!strcmp(operation
, "DELETE"))
938 con
->http
.state
= HTTP_STATE_DELETE
;
939 else if (!strcmp(operation
, "TRACE"))
940 con
->http
.state
= HTTP_STATE_TRACE
;
941 else if (!strcmp(operation
, "OPTIONS"))
942 con
->http
.state
= HTTP_STATE_OPTIONS
;
943 else if (!strcmp(operation
, "HEAD"))
944 con
->http
.state
= HTTP_STATE_HEAD
;
947 cupsdLogMessage(CUPSD_LOG_ERROR
,
948 "[Client %d] Bad operation \"%s\".", con
->http
.fd
,
950 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
951 cupsdCloseClient(con
);
955 gettimeofday(&(con
->start
), NULL
);
956 con
->operation
= con
->http
.state
;
958 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] %s %s HTTP/%d.%d",
959 con
->http
.fd
, operation
, con
->uri
,
960 con
->http
.version
/ 100, con
->http
.version
% 100);
962 con
->http
.status
= HTTP_OK
;
964 if (!cupsArrayFind(ActiveClients
, con
))
966 cupsArrayAdd(ActiveClients
, con
);
970 case HTTP_STATE_OPTIONS
:
971 case HTTP_STATE_DELETE
:
972 case HTTP_STATE_GET
:
973 case HTTP_STATE_HEAD
:
974 case HTTP_STATE_POST
:
975 case HTTP_STATE_PUT
:
976 case HTTP_STATE_TRACE
:
978 * Parse incoming parameters until the status changes...
981 while ((status
= httpUpdate(HTTP(con
))) == HTTP_CONTINUE
)
982 if (!data_ready(con
))
985 if (status
!= HTTP_OK
&& status
!= HTTP_CONTINUE
)
987 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
988 cupsdLogMessage(CUPSD_LOG_DEBUG
,
989 "[Client %d] Closing for error %d (%s) while "
991 con
->http
.fd
, con
->http
.error
,
992 strerror(con
->http
.error
));
994 cupsdLogMessage(CUPSD_LOG_DEBUG
,
995 "[Client %d] Closing on EOF while reading headers.",
998 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
999 cupsdCloseClient(con
);
1005 if (!data_ready(con
) && recv(con
->http
.fd
, buf
, 1, MSG_PEEK
) < 1)
1008 * Connection closed...
1011 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1012 "[Client %d] Closing on EOF", con
->http
.fd
);
1013 cupsdCloseClient(con
);
1016 break; /* Anti-compiler-warning-code */
1020 * Handle new transfers...
1023 if (status
== HTTP_OK
)
1025 if (con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
][0])
1028 * Figure out the locale from the Accept-Language and Content-Type
1032 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
],
1036 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
],
1040 if ((ptr
= strstr(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
],
1041 "charset=")) != NULL
)
1044 * Combine language and charset, and trim any extra params in the
1048 snprintf(locale
, sizeof(locale
), "%s.%s",
1049 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ptr
+ 8);
1051 if ((ptr
= strchr(locale
, ',')) != NULL
)
1055 snprintf(locale
, sizeof(locale
), "%s.UTF-8",
1056 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
]);
1058 con
->language
= cupsLangGet(locale
);
1061 con
->language
= cupsLangGet(DefaultLocale
);
1063 cupsdAuthorize(con
);
1065 if (!_cups_strncasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
],
1066 "Keep-Alive", 10) && KeepAlive
)
1067 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
1068 else if (!_cups_strncasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
],
1070 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1072 if (!con
->http
.fields
[HTTP_FIELD_HOST
][0] &&
1073 con
->http
.version
>= HTTP_1_1
)
1076 * HTTP/1.1 and higher require the "Host:" field...
1079 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1081 cupsdLogMessage(CUPSD_LOG_ERROR
,
1082 "[Client %d] Missing Host: field in request.",
1084 cupsdCloseClient(con
);
1088 else if (!valid_host(con
))
1091 * Access to localhost must use "localhost" or the corresponding IPv4
1092 * or IPv6 values in the Host: field.
1095 cupsdLogMessage(CUPSD_LOG_ERROR
,
1096 "[Client %d] Request from \"%s\" using invalid Host: "
1097 "field \"%s\"", con
->http
.fd
, con
->http
.hostname
,
1098 con
->http
.fields
[HTTP_FIELD_HOST
]);
1100 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1102 cupsdCloseClient(con
);
1106 else if (con
->operation
== HTTP_STATE_OPTIONS
)
1109 * Do OPTIONS command...
1112 if (con
->best
&& con
->best
->type
!= CUPSD_AUTH_NONE
)
1114 if (!cupsdSendHeader(con
, HTTP_UNAUTHORIZED
, NULL
, CUPSD_AUTH_NONE
))
1116 cupsdCloseClient(con
);
1121 if (!_cups_strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") &&
1122 con
->http
.tls
== NULL
)
1126 * Do encryption stuff...
1129 if (!cupsdSendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
, CUPSD_AUTH_NONE
))
1131 cupsdCloseClient(con
);
1135 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1136 httpPrintf(HTTP(con
), "Upgrade: TLS/1.2,TLS/1.1,TLS/1.0\r\n");
1137 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1138 httpPrintf(HTTP(con
), "\r\n");
1140 if (cupsdFlushHeader(con
) < 0)
1142 cupsdCloseClient(con
);
1146 if (!cupsdStartTLS(con
))
1148 cupsdCloseClient(con
);
1152 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
))
1154 cupsdCloseClient(con
);
1157 #endif /* HAVE_SSL */
1160 if (!cupsdSendHeader(con
, HTTP_OK
, NULL
, CUPSD_AUTH_NONE
))
1162 cupsdCloseClient(con
);
1166 httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n");
1167 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1168 httpPrintf(HTTP(con
), "\r\n");
1170 if (cupsdFlushHeader(con
) < 0)
1172 cupsdCloseClient(con
);
1176 else if (!is_path_absolute(con
->uri
))
1179 * Protect against malicious users!
1182 cupsdLogMessage(CUPSD_LOG_ERROR
,
1183 "[Client %d] Request for non-absolute resource \"%s\".",
1184 con
->http
.fd
, con
->uri
);
1186 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1188 cupsdCloseClient(con
);
1194 if (!_cups_strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
],
1195 "Upgrade") && con
->http
.tls
== NULL
)
1199 * Do encryption stuff...
1202 if (!cupsdSendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
,
1205 cupsdCloseClient(con
);
1209 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1210 httpPrintf(HTTP(con
), "Upgrade: TLS/1.2,TLS/1.1,TLS/1.0\r\n");
1211 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1212 httpPrintf(HTTP(con
), "\r\n");
1214 if (cupsdFlushHeader(con
) < 0)
1216 cupsdCloseClient(con
);
1220 if (!cupsdStartTLS(con
))
1222 cupsdCloseClient(con
);
1226 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
))
1228 cupsdCloseClient(con
);
1231 #endif /* HAVE_SSL */
1234 if ((status
= cupsdIsAuthorized(con
, NULL
)) != HTTP_OK
)
1236 cupsdSendError(con
, status
, CUPSD_AUTH_NONE
);
1237 cupsdCloseClient(con
);
1241 if (con
->http
.expect
&&
1242 (con
->operation
== HTTP_STATE_POST
|| con
->operation
== HTTP_STATE_PUT
))
1244 if (con
->http
.expect
== HTTP_CONTINUE
)
1247 * Send 100-continue header...
1250 if (!cupsdSendHeader(con
, HTTP_CONTINUE
, NULL
, CUPSD_AUTH_NONE
))
1252 cupsdCloseClient(con
);
1259 * Send 417-expectation-failed header...
1262 if (!cupsdSendHeader(con
, HTTP_EXPECTATION_FAILED
, NULL
,
1265 cupsdCloseClient(con
);
1269 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1270 httpPrintf(HTTP(con
), "\r\n");
1272 if (cupsdFlushHeader(con
) < 0)
1274 cupsdCloseClient(con
);
1280 switch (con
->http
.state
)
1282 case HTTP_STATE_GET_SEND
:
1283 if ((!strncmp(con
->uri
, "/ppd/", 5) ||
1284 !strncmp(con
->uri
, "/printers/", 10) ||
1285 !strncmp(con
->uri
, "/classes/", 9)) &&
1286 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1289 * Send PPD file - get the real printer name since printer
1290 * names are not case sensitive but filenames can be...
1293 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1295 if (!strncmp(con
->uri
, "/ppd/", 5))
1296 p
= cupsdFindPrinter(con
->uri
+ 5);
1297 else if (!strncmp(con
->uri
, "/printers/", 10))
1298 p
= cupsdFindPrinter(con
->uri
+ 10);
1301 p
= cupsdFindClass(con
->uri
+ 9);
1305 int i
; /* Looping var */
1307 for (i
= 0; i
< p
->num_printers
; i
++)
1309 if (!(p
->printers
[i
]->type
& CUPS_PRINTER_CLASS
))
1311 char ppdname
[1024];/* PPD filename */
1313 snprintf(ppdname
, sizeof(ppdname
), "%s/ppd/%s.ppd",
1314 ServerRoot
, p
->printers
[i
]->name
);
1315 if (!access(ppdname
, 0))
1323 if (i
>= p
->num_printers
)
1330 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1334 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1336 cupsdCloseClient(con
);
1343 else if ((!strncmp(con
->uri
, "/icons/", 7) ||
1344 !strncmp(con
->uri
, "/printers/", 10) ||
1345 !strncmp(con
->uri
, "/classes/", 9)) &&
1346 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".png"))
1349 * Send icon file - get the real queue name since queue names are
1350 * not case sensitive but filenames can be...
1353 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".png" */
1355 if (!strncmp(con
->uri
, "/icons/", 7))
1356 p
= cupsdFindPrinter(con
->uri
+ 7);
1357 else if (!strncmp(con
->uri
, "/printers/", 10))
1358 p
= cupsdFindPrinter(con
->uri
+ 10);
1361 p
= cupsdFindClass(con
->uri
+ 9);
1365 int i
; /* Looping var */
1367 for (i
= 0; i
< p
->num_printers
; i
++)
1369 if (!(p
->printers
[i
]->type
& CUPS_PRINTER_CLASS
))
1371 char ppdname
[1024];/* PPD filename */
1373 snprintf(ppdname
, sizeof(ppdname
), "%s/ppd/%s.ppd",
1374 ServerRoot
, p
->printers
[i
]->name
);
1375 if (!access(ppdname
, 0))
1383 if (i
>= p
->num_printers
)
1389 snprintf(con
->uri
, sizeof(con
->uri
), "/icons/%s.png", p
->name
);
1392 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1394 cupsdCloseClient(con
);
1401 else if (!WebInterface
)
1404 * Web interface is disabled. Show an appropriate message...
1407 if (!cupsdSendError(con
, HTTP_WEBIF_DISABLED
, CUPSD_AUTH_NONE
))
1409 cupsdCloseClient(con
);
1416 if ((!strncmp(con
->uri
, "/admin", 6) &&
1417 strncmp(con
->uri
, "/admin/conf/", 12) &&
1418 strncmp(con
->uri
, "/admin/log/", 11)) ||
1419 !strncmp(con
->uri
, "/printers", 9) ||
1420 !strncmp(con
->uri
, "/classes", 8) ||
1421 !strncmp(con
->uri
, "/help", 5) ||
1422 !strncmp(con
->uri
, "/jobs", 5))
1425 * Send CGI output...
1428 if (!strncmp(con
->uri
, "/admin", 6))
1430 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1433 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1435 else if (!strncmp(con
->uri
, "/printers", 9))
1437 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1440 if (con
->uri
[9] && con
->uri
[10])
1441 cupsdSetString(&con
->options
, con
->uri
+ 9);
1443 cupsdSetString(&con
->options
, NULL
);
1445 else if (!strncmp(con
->uri
, "/classes", 8))
1447 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1450 if (con
->uri
[8] && con
->uri
[9])
1451 cupsdSetString(&con
->options
, con
->uri
+ 8);
1453 cupsdSetString(&con
->options
, NULL
);
1455 else if (!strncmp(con
->uri
, "/jobs", 5))
1457 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1460 if (con
->uri
[5] && con
->uri
[6])
1461 cupsdSetString(&con
->options
, con
->uri
+ 5);
1463 cupsdSetString(&con
->options
, NULL
);
1467 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1470 if (con
->uri
[5] && con
->uri
[6])
1471 cupsdSetString(&con
->options
, con
->uri
+ 5);
1473 cupsdSetString(&con
->options
, NULL
);
1476 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1478 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1480 cupsdCloseClient(con
);
1485 cupsdLogRequest(con
, HTTP_OK
);
1487 if (con
->http
.version
<= HTTP_1_0
)
1488 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1490 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1491 (strchr(con
->uri
+ 12, '/') ||
1492 strlen(con
->uri
) == 12)) ||
1493 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1494 (strchr(con
->uri
+ 11, '/') ||
1495 strlen(con
->uri
) == 11)))
1498 * GET can only be done to configuration files directly under
1502 cupsdLogMessage(CUPSD_LOG_ERROR
,
1503 "Request for subdirectory \"%s\"!", con
->uri
);
1505 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1507 cupsdCloseClient(con
);
1519 if ((filename
= get_file(con
, &filestats
, buf
,
1520 sizeof(buf
))) == NULL
)
1522 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1524 cupsdCloseClient(con
);
1531 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1533 if (is_cgi(con
, filename
, &filestats
, type
))
1536 * Note: con->command and con->options were set by
1540 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1542 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1544 cupsdCloseClient(con
);
1549 cupsdLogRequest(con
, HTTP_OK
);
1551 if (con
->http
.version
<= HTTP_1_0
)
1552 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1556 if (!check_if_modified(con
, &filestats
))
1558 if (!cupsdSendError(con
, HTTP_NOT_MODIFIED
, CUPSD_AUTH_NONE
))
1560 cupsdCloseClient(con
);
1567 strlcpy(line
, "text/plain", sizeof(line
));
1569 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1571 if (!write_file(con
, HTTP_OK
, filename
, line
, &filestats
))
1573 cupsdCloseClient(con
);
1580 case HTTP_STATE_POST_RECV
:
1582 * See if the POST request includes a Content-Length field, and if
1583 * so check the length against any limits that are set...
1586 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1587 MaxRequestSize
> 0 &&
1588 con
->http
.data_remaining
> MaxRequestSize
)
1591 * Request too large...
1594 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1596 cupsdCloseClient(con
);
1602 else if (con
->http
.data_remaining
< 0 ||
1603 (!con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1604 con
->http
.data_encoding
== HTTP_ENCODING_LENGTH
))
1607 * Negative content lengths are invalid!
1610 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1612 cupsdCloseClient(con
);
1620 * See what kind of POST request this is; for IPP requests the
1621 * content-type field will be "application/ipp"...
1624 if (!strcmp(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
],
1626 con
->request
= ippNew();
1627 else if (!WebInterface
)
1630 * Web interface is disabled. Show an appropriate message...
1633 if (!cupsdSendError(con
, HTTP_WEBIF_DISABLED
, CUPSD_AUTH_NONE
))
1635 cupsdCloseClient(con
);
1641 else if ((!strncmp(con
->uri
, "/admin", 6) &&
1642 strncmp(con
->uri
, "/admin/conf/", 12) &&
1643 strncmp(con
->uri
, "/admin/log/", 11)) ||
1644 !strncmp(con
->uri
, "/printers", 9) ||
1645 !strncmp(con
->uri
, "/classes", 8) ||
1646 !strncmp(con
->uri
, "/help", 5) ||
1647 !strncmp(con
->uri
, "/jobs", 5))
1653 if (!strncmp(con
->uri
, "/admin", 6))
1655 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1658 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1660 else if (!strncmp(con
->uri
, "/printers", 9))
1662 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1665 if (con
->uri
[9] && con
->uri
[10])
1666 cupsdSetString(&con
->options
, con
->uri
+ 9);
1668 cupsdSetString(&con
->options
, NULL
);
1670 else if (!strncmp(con
->uri
, "/classes", 8))
1672 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1675 if (con
->uri
[8] && con
->uri
[9])
1676 cupsdSetString(&con
->options
, con
->uri
+ 8);
1678 cupsdSetString(&con
->options
, NULL
);
1680 else if (!strncmp(con
->uri
, "/jobs", 5))
1682 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1685 if (con
->uri
[5] && con
->uri
[6])
1686 cupsdSetString(&con
->options
, con
->uri
+ 5);
1688 cupsdSetString(&con
->options
, NULL
);
1692 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1695 if (con
->uri
[5] && con
->uri
[6])
1696 cupsdSetString(&con
->options
, con
->uri
+ 5);
1698 cupsdSetString(&con
->options
, NULL
);
1701 if (con
->http
.version
<= HTTP_1_0
)
1702 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1710 if ((filename
= get_file(con
, &filestats
, buf
,
1711 sizeof(buf
))) == NULL
)
1713 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1715 cupsdCloseClient(con
);
1722 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1724 if (!is_cgi(con
, filename
, &filestats
, type
))
1727 * Only POST to CGI's...
1730 if (!cupsdSendError(con
, HTTP_UNAUTHORIZED
, CUPSD_AUTH_NONE
))
1732 cupsdCloseClient(con
);
1739 case HTTP_STATE_PUT_RECV
:
1741 * Validate the resource name...
1744 if (strcmp(con
->uri
, "/admin/conf/cupsd.conf"))
1747 * PUT can only be done to the cupsd.conf file...
1750 cupsdLogMessage(CUPSD_LOG_ERROR
,
1751 "[Client %d] Disallowed PUT request for \"%s\".",
1752 con
->http
.fd
, con
->uri
);
1754 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1756 cupsdCloseClient(con
);
1764 * See if the PUT request includes a Content-Length field, and if
1765 * so check the length against any limits that are set...
1768 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1769 MaxRequestSize
> 0 &&
1770 con
->http
.data_remaining
> MaxRequestSize
)
1773 * Request too large...
1776 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1778 cupsdCloseClient(con
);
1784 else if (con
->http
.data_remaining
< 0)
1787 * Negative content lengths are invalid!
1790 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1792 cupsdCloseClient(con
);
1800 * Open a temporary file to hold the request...
1803 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
,
1805 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1809 cupsdLogMessage(CUPSD_LOG_ERROR
,
1810 "[Client %d] Unable to create request file "
1811 "\"%s\": %s", con
->http
.fd
, con
->filename
,
1814 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1816 cupsdCloseClient(con
);
1821 fchmod(con
->file
, 0640);
1822 fchown(con
->file
, RunUser
, Group
);
1823 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1826 case HTTP_STATE_DELETE
:
1827 case HTTP_STATE_TRACE
:
1828 cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
);
1829 cupsdCloseClient(con
);
1832 case HTTP_STATE_HEAD
:
1833 if (!strncmp(con
->uri
, "/printers/", 10) &&
1834 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1837 * Send PPD file - get the real printer name since printer
1838 * names are not case sensitive but filenames can be...
1841 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1843 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1844 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1847 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1849 cupsdCloseClient(con
);
1856 else if (!strncmp(con
->uri
, "/printers/", 10) &&
1857 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".png"))
1860 * Send PNG file - get the real printer name since printer
1861 * names are not case sensitive but filenames can be...
1864 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1866 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1867 snprintf(con
->uri
, sizeof(con
->uri
), "/icons/%s.png", p
->name
);
1870 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1872 cupsdCloseClient(con
);
1879 else if (!WebInterface
)
1881 if (!cupsdSendHeader(con
, HTTP_OK
, NULL
, CUPSD_AUTH_NONE
))
1883 cupsdCloseClient(con
);
1887 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1889 cupsdCloseClient(con
);
1893 if (cupsdFlushHeader(con
) < 0)
1895 cupsdCloseClient(con
);
1899 con
->http
.state
= HTTP_STATE_WAITING
;
1900 DEBUG_puts("cupsdReadClient: Set state to HTTP_STATE_WAITING "
1905 if ((!strncmp(con
->uri
, "/admin", 6) &&
1906 strncmp(con
->uri
, "/admin/conf/", 12) &&
1907 strncmp(con
->uri
, "/admin/log/", 11)) ||
1908 !strncmp(con
->uri
, "/printers", 9) ||
1909 !strncmp(con
->uri
, "/classes", 8) ||
1910 !strncmp(con
->uri
, "/help", 5) ||
1911 !strncmp(con
->uri
, "/jobs", 5))
1917 if (!cupsdSendHeader(con
, HTTP_OK
, "text/html", CUPSD_AUTH_NONE
))
1919 cupsdCloseClient(con
);
1923 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1925 cupsdCloseClient(con
);
1929 if (cupsdFlushHeader(con
) < 0)
1931 cupsdCloseClient(con
);
1935 cupsdLogRequest(con
, HTTP_OK
);
1937 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1938 (strchr(con
->uri
+ 12, '/') ||
1939 strlen(con
->uri
) == 12)) ||
1940 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1941 (strchr(con
->uri
+ 11, '/') ||
1942 strlen(con
->uri
) == 11)))
1945 * HEAD can only be done to configuration files under
1949 cupsdLogMessage(CUPSD_LOG_ERROR
,
1950 "[Client %d] Request for subdirectory \"%s\".",
1951 con
->http
.fd
, con
->uri
);
1953 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1955 cupsdCloseClient(con
);
1961 else if ((filename
= get_file(con
, &filestats
, buf
,
1962 sizeof(buf
))) == NULL
)
1964 if (!cupsdSendHeader(con
, HTTP_NOT_FOUND
, "text/html",
1967 cupsdCloseClient(con
);
1971 cupsdLogRequest(con
, HTTP_NOT_FOUND
);
1973 else if (!check_if_modified(con
, &filestats
))
1975 if (!cupsdSendError(con
, HTTP_NOT_MODIFIED
, CUPSD_AUTH_NONE
))
1977 cupsdCloseClient(con
);
1981 cupsdLogRequest(con
, HTTP_NOT_MODIFIED
);
1989 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1991 strlcpy(line
, "text/plain", sizeof(line
));
1993 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1995 if (!cupsdSendHeader(con
, HTTP_OK
, line
, CUPSD_AUTH_NONE
))
1997 cupsdCloseClient(con
);
2001 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
2002 httpGetDateString(filestats
.st_mtime
)) < 0)
2004 cupsdCloseClient(con
);
2008 if (httpPrintf(HTTP(con
), "Content-Length: %lu\r\n",
2009 (unsigned long)filestats
.st_size
) < 0)
2011 cupsdCloseClient(con
);
2015 cupsdLogRequest(con
, HTTP_OK
);
2018 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2020 cupsdCloseClient(con
);
2024 if (cupsdFlushHeader(con
) < 0)
2026 cupsdCloseClient(con
);
2030 con
->http
.state
= HTTP_STATE_WAITING
;
2031 DEBUG_puts("cupsdReadClient: Set state to HTTP_STATE_WAITING "
2036 break; /* Anti-compiler-warning-code */
2042 * Handle any incoming data...
2045 switch (con
->http
.state
)
2047 case HTTP_STATE_PUT_RECV
:
2050 if ((bytes
= httpRead2(HTTP(con
), line
, sizeof(line
))) < 0)
2052 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
2053 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2054 "[Client %d] HTTP_STATE_PUT_RECV Closing for error "
2055 "%d (%s)", con
->http
.fd
, con
->http
.error
,
2056 strerror(con
->http
.error
));
2058 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2059 "[Client %d] HTTP_STATE_PUT_RECV Closing on EOF",
2062 cupsdCloseClient(con
);
2067 con
->bytes
+= bytes
;
2069 if (write(con
->file
, line
, bytes
) < bytes
)
2071 cupsdLogMessage(CUPSD_LOG_ERROR
,
2072 "[Client %d] Unable to write %d bytes to "
2073 "\"%s\": %s", con
->http
.fd
, bytes
, con
->filename
,
2078 unlink(con
->filename
);
2079 cupsdClearString(&con
->filename
);
2081 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2083 cupsdCloseClient(con
);
2089 while (con
->http
.state
== HTTP_STATE_PUT_RECV
&& data_ready(con
));
2091 if (con
->http
.state
== HTTP_STATE_STATUS
)
2094 * End of file, see how big it is...
2097 fstat(con
->file
, &filestats
);
2102 if (filestats
.st_size
> MaxRequestSize
&&
2106 * Request is too big; remove it and send an error...
2109 unlink(con
->filename
);
2110 cupsdClearString(&con
->filename
);
2112 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2114 cupsdCloseClient(con
);
2120 * Install the configuration file...
2123 status
= install_cupsd_conf(con
);
2126 * Return the status to the client...
2129 if (!cupsdSendError(con
, status
, CUPSD_AUTH_NONE
))
2131 cupsdCloseClient(con
);
2137 case HTTP_STATE_POST_RECV
:
2140 if (con
->request
&& con
->file
< 0)
2143 * Grab any request data from the connection...
2146 if ((ipp_state
= ippRead(&(con
->http
), con
->request
)) == IPP_ERROR
)
2148 cupsdLogMessage(CUPSD_LOG_ERROR
,
2149 "[Client %d] IPP read error: %s", con
->http
.fd
,
2150 cupsLastErrorString());
2152 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
2153 cupsdCloseClient(con
);
2156 else if (ipp_state
!= IPP_DATA
)
2158 if (con
->http
.state
== HTTP_STATE_POST_SEND
)
2160 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
2161 cupsdCloseClient(con
);
2165 if (data_ready(con
))
2171 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] %d.%d %s %d",
2172 con
->http
.fd
, con
->request
->request
.op
.version
[0],
2173 con
->request
->request
.op
.version
[1],
2174 ippOpString(con
->request
->request
.op
.operation_id
),
2175 con
->request
->request
.op
.request_id
);
2176 con
->bytes
+= ippLength(con
->request
);
2180 if (con
->file
< 0 && con
->http
.state
!= HTTP_STATE_POST_SEND
)
2183 * Create a file as needed for the request data...
2186 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
,
2188 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
2192 cupsdLogMessage(CUPSD_LOG_ERROR
,
2193 "[Client %d] Unable to create request file "
2194 "\"%s\": %s", con
->http
.fd
, con
->filename
,
2197 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2199 cupsdCloseClient(con
);
2204 fchmod(con
->file
, 0640);
2205 fchown(con
->file
, RunUser
, Group
);
2206 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
2209 if (con
->http
.state
!= HTTP_STATE_POST_SEND
)
2211 if (!httpWait(HTTP(con
), 0))
2213 else if ((bytes
= httpRead2(HTTP(con
), line
, sizeof(line
))) < 0)
2215 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
2216 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2217 "[Client %d] HTTP_STATE_POST_SEND Closing for "
2218 "error %d (%s)", con
->http
.fd
, con
->http
.error
,
2219 strerror(con
->http
.error
));
2221 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2222 "[Client %d] HTTP_STATE_POST_SEND Closing on EOF",
2225 cupsdCloseClient(con
);
2230 con
->bytes
+= bytes
;
2232 if (write(con
->file
, line
, bytes
) < bytes
)
2234 cupsdLogMessage(CUPSD_LOG_ERROR
,
2235 "[Client %d] Unable to write %d bytes to "
2236 "\"%s\": %s", con
->http
.fd
, bytes
,
2237 con
->filename
, strerror(errno
));
2241 unlink(con
->filename
);
2242 cupsdClearString(&con
->filename
);
2244 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
,
2247 cupsdCloseClient(con
);
2252 else if (con
->http
.state
== HTTP_STATE_POST_RECV
)
2254 else if (con
->http
.state
!= HTTP_STATE_POST_SEND
)
2256 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2257 "[Client %d] Closing on unexpected state %s.",
2258 con
->http
.fd
, http_states
[con
->http
.state
+ 1]);
2259 cupsdCloseClient(con
);
2264 while (con
->http
.state
== HTTP_STATE_POST_RECV
&& data_ready(con
));
2266 if (con
->http
.state
== HTTP_STATE_POST_SEND
)
2270 fstat(con
->file
, &filestats
);
2275 if (filestats
.st_size
> MaxRequestSize
&&
2279 * Request is too big; remove it and send an error...
2282 unlink(con
->filename
);
2283 cupsdClearString(&con
->filename
);
2288 * Delete any IPP request data...
2291 ippDelete(con
->request
);
2292 con
->request
= NULL
;
2295 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2297 cupsdCloseClient(con
);
2301 else if (filestats
.st_size
== 0)
2304 * Don't allow empty file...
2307 unlink(con
->filename
);
2308 cupsdClearString(&con
->filename
);
2313 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
2315 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
2317 cupsdCloseClient(con
);
2322 cupsdLogRequest(con
, HTTP_OK
);
2328 cupsdProcessIPPRequest(con
);
2332 unlink(con
->filename
);
2333 cupsdClearString(&con
->filename
);
2342 break; /* Anti-compiler-warning-code */
2345 if (con
->http
.state
== HTTP_STATE_WAITING
)
2347 if (!con
->http
.keep_alive
)
2349 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2350 "[Client %d] Closing because Keep-Alive disabled",
2352 cupsdCloseClient(con
);
2356 cupsArrayRemove(ActiveClients
, con
);
2357 cupsdSetBusyState();
2364 * 'cupsdSendCommand()' - Send output from a command via HTTP.
2367 int /* O - 1 on success, 0 on failure */
2369 cupsd_client_t
*con
, /* I - Client connection */
2370 char *command
, /* I - Command to run */
2371 char *options
, /* I - Command-line options */
2372 int root
) /* I - Run as root? */
2374 int fd
; /* Standard input file descriptor */
2379 fd
= open(con
->filename
, O_RDONLY
);
2383 cupsdLogMessage(CUPSD_LOG_ERROR
,
2384 "[Client %d] Unable to open \"%s\" for reading: %s",
2385 con
->http
.fd
, con
->filename
? con
->filename
: "/dev/null",
2390 fcntl(fd
, F_SETFD
, fcntl(fd
, F_GETFD
) | FD_CLOEXEC
);
2395 con
->pipe_pid
= pipe_command(con
, fd
, &(con
->file
), command
, options
, root
);
2400 cupsdLogMessage(CUPSD_LOG_INFO
, "[Client %d] Started \"%s\" (pid=%d)",
2401 con
->http
.fd
, command
, con
->pipe_pid
);
2403 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] file=%d", con
->http
.fd
,
2406 if (con
->pipe_pid
== 0)
2409 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
2411 cupsdAddSelect(con
->file
, (cupsd_selfunc_t
)write_pipe
, NULL
, con
);
2413 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Waiting for CGI data.",
2416 con
->sent_header
= 0;
2417 con
->file_ready
= 0;
2418 con
->got_fields
= 0;
2419 con
->header_used
= 0;
2426 * 'cupsdSendError()' - Send an error message via HTTP.
2429 int /* O - 1 if successful, 0 otherwise */
2430 cupsdSendError(cupsd_client_t
*con
, /* I - Connection */
2431 http_status_t code
, /* I - Error code */
2432 int auth_type
)/* I - Authentication type */
2434 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2435 "[Client %d] cupsdSendError code=%d, auth_type=%d",
2436 con
->http
.fd
, code
, auth_type
);
2440 * Force client to upgrade for authentication if that is how the
2441 * server is configured...
2444 if (code
== HTTP_UNAUTHORIZED
&&
2445 DefaultEncryption
== HTTP_ENCRYPT_REQUIRED
&&
2446 _cups_strcasecmp(con
->http
.hostname
, "localhost") &&
2449 code
= HTTP_UPGRADE_REQUIRED
;
2451 #endif /* HAVE_SSL */
2454 * Put the request in the access_log file...
2457 cupsdLogRequest(con
, code
);
2460 * To work around bugs in some proxies, don't use Keep-Alive for some
2463 * Kerberos authentication doesn't work without Keep-Alive, so
2464 * never disable it in that case.
2467 if (code
>= HTTP_BAD_REQUEST
&& con
->http
.auth_type
!= CUPSD_AUTH_NEGOTIATE
)
2468 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
2471 * Send an error message back to the client. If the error code is a
2472 * 400 or 500 series, make sure the message contains some text, too!
2475 if (!cupsdSendHeader(con
, code
, NULL
, auth_type
))
2479 if (code
== HTTP_UPGRADE_REQUIRED
)
2480 if (httpPrintf(HTTP(con
), "Connection: Upgrade\r\n") < 0)
2483 if (httpPrintf(HTTP(con
), "Upgrade: TLS/1.2,TLS/1.1,TLS/1.0\r\n") < 0)
2485 #endif /* HAVE_SSL */
2487 if (con
->http
.version
>= HTTP_1_1
&&
2488 con
->http
.keep_alive
== HTTP_KEEPALIVE_OFF
)
2490 if (httpPrintf(HTTP(con
), "Connection: close\r\n") < 0)
2494 if (code
>= HTTP_BAD_REQUEST
)
2497 * Send a human-readable error message.
2500 char message
[4096], /* Message for user */
2501 urltext
[1024], /* URL redirection text */
2502 redirect
[1024]; /* Redirection link */
2503 const char *text
; /* Status-specific text */
2508 if (code
== HTTP_UNAUTHORIZED
)
2509 text
= _cupsLangString(con
->language
,
2510 _("Enter your username and password or the "
2511 "root username and password to access this "
2512 "page. If you are using Kerberos authentication, "
2513 "make sure you have a valid Kerberos ticket."));
2514 else if (code
== HTTP_UPGRADE_REQUIRED
)
2518 snprintf(urltext
, sizeof(urltext
),
2519 _cupsLangString(con
->language
,
2520 _("You must access this page using the URL "
2521 "<A HREF=\"https://%s:%d%s\">"
2522 "https://%s:%d%s</A>.")),
2523 con
->servername
, con
->serverport
, con
->uri
,
2524 con
->servername
, con
->serverport
, con
->uri
);
2526 snprintf(redirect
, sizeof(redirect
),
2527 "<META HTTP-EQUIV=\"Refresh\" "
2528 "CONTENT=\"3;URL=https://%s:%d%s\">\n",
2529 con
->servername
, con
->serverport
, con
->uri
);
2531 else if (code
== HTTP_WEBIF_DISABLED
)
2532 text
= _cupsLangString(con
->language
,
2533 _("The web interface is currently disabled. Run "
2534 "\"cupsctl WebInterface=yes\" to enable it."));
2538 snprintf(message
, sizeof(message
),
2539 "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" "
2540 "\"http://www.w3.org/TR/html4/loose.dtd\">\n"
2543 "\t<META HTTP-EQUIV=\"Content-Type\" "
2544 "CONTENT=\"text/html; charset=utf-8\">\n"
2545 "\t<TITLE>%s - " CUPS_SVERSION
"</TITLE>\n"
2546 "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" "
2547 "HREF=\"/cups.css\">\n"
2555 httpStatus(code
), redirect
, httpStatus(code
), text
);
2557 if (httpPrintf(HTTP(con
), "Content-Type: text/html; charset=utf-8\r\n") < 0)
2559 if (httpPrintf(HTTP(con
), "Content-Length: %d\r\n",
2560 (int)strlen(message
)) < 0)
2562 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2564 if (httpPrintf(HTTP(con
), "%s", message
) < 0)
2567 else if (httpPrintf(HTTP(con
), "\r\n") < 0)
2570 if (cupsdFlushHeader(con
) < 0)
2573 con
->http
.state
= HTTP_STATE_WAITING
;
2575 DEBUG_puts("cupsdSendError: Set state to HTTP_STATE_WAITING.");
2582 * 'cupsdSendHeader()' - Send an HTTP request.
2585 int /* O - 1 on success, 0 on failure */
2587 cupsd_client_t
*con
, /* I - Client to send to */
2588 http_status_t code
, /* I - HTTP status code */
2589 char *type
, /* I - MIME type of document */
2590 int auth_type
) /* I - Type of authentication */
2592 char auth_str
[1024]; /* Authorization string */
2596 * Send the HTTP status header...
2599 if (code
== HTTP_CONTINUE
)
2602 * 100-continue doesn't send any headers...
2605 return (httpPrintf(HTTP(con
), "HTTP/%d.%d 100 Continue\r\n\r\n",
2606 con
->http
.version
/ 100, con
->http
.version
% 100) > 0);
2608 else if (code
== HTTP_WEBIF_DISABLED
)
2611 * Treat our special "web interface is disabled" status as "200 OK" for web
2618 httpFlushWrite(HTTP(con
));
2620 con
->http
.data_encoding
= HTTP_ENCODING_FIELDS
;
2622 if (httpPrintf(HTTP(con
), "HTTP/%d.%d %d %s\r\n", con
->http
.version
/ 100,
2623 con
->http
.version
% 100, code
, httpStatus(code
)) < 0)
2625 if (httpPrintf(HTTP(con
), "Date: %s\r\n", httpGetDateString(time(NULL
))) < 0)
2628 if (httpPrintf(HTTP(con
), "Server: %s\r\n", ServerHeader
) < 0)
2630 if (con
->http
.keep_alive
&& con
->http
.version
>= HTTP_1_0
)
2632 if (httpPrintf(HTTP(con
), "Connection: Keep-Alive\r\n") < 0)
2634 if (httpPrintf(HTTP(con
), "Keep-Alive: timeout=%d\r\n",
2635 KeepAliveTimeout
) < 0)
2638 if (code
== HTTP_METHOD_NOT_ALLOWED
)
2639 if (httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n") < 0)
2642 if (code
== HTTP_UNAUTHORIZED
)
2644 if (auth_type
== CUPSD_AUTH_NONE
)
2646 if (!con
->best
|| con
->best
->type
<= CUPSD_AUTH_NONE
)
2647 auth_type
= cupsdDefaultAuthType();
2649 auth_type
= con
->best
->type
;
2654 if (auth_type
== CUPSD_AUTH_BASIC
|| auth_type
== CUPSD_AUTH_BASICDIGEST
)
2655 strlcpy(auth_str
, "Basic realm=\"CUPS\"", sizeof(auth_str
));
2656 else if (auth_type
== CUPSD_AUTH_DIGEST
)
2657 snprintf(auth_str
, sizeof(auth_str
), "Digest realm=\"CUPS\", nonce=\"%s\"",
2658 con
->http
.hostname
);
2660 else if (auth_type
== CUPSD_AUTH_NEGOTIATE
)
2663 if (_httpAddrFamily(con
->http
.hostaddr
) == AF_LOCAL
)
2664 strlcpy(auth_str
, "Basic realm=\"CUPS\"", sizeof(auth_str
));
2666 # endif /* AF_LOCAL */
2667 strlcpy(auth_str
, "Negotiate", sizeof(auth_str
));
2669 #endif /* HAVE_GSSAPI */
2671 if (con
->best
&& auth_type
!= CUPSD_AUTH_NEGOTIATE
&&
2672 !_cups_strcasecmp(con
->http
.hostname
, "localhost"))
2675 * Add a "trc" (try root certification) parameter for local non-Kerberos
2676 * requests when the request requires system group membership - then the
2677 * client knows the root certificate can/should be used.
2679 * Also, for OS X we also look for @AUTHKEY and add an "authkey"
2680 * parameter as needed...
2683 char *name
, /* Current user name */
2684 *auth_key
; /* Auth key buffer */
2685 size_t auth_size
; /* Size of remaining buffer */
2687 auth_key
= auth_str
+ strlen(auth_str
);
2688 auth_size
= sizeof(auth_str
) - (auth_key
- auth_str
);
2690 for (name
= (char *)cupsArrayFirst(con
->best
->names
);
2692 name
= (char *)cupsArrayNext(con
->best
->names
))
2694 #ifdef HAVE_AUTHORIZATION_H
2695 if (!_cups_strncasecmp(name
, "@AUTHKEY(", 9))
2697 snprintf(auth_key
, auth_size
, ", authkey=\"%s\"", name
+ 9);
2698 /* end parenthesis is stripped in conf.c */
2702 #endif /* HAVE_AUTHORIZATION_H */
2703 if (!_cups_strcasecmp(name
, "@SYSTEM"))
2705 #ifdef HAVE_AUTHORIZATION_H
2706 if (SystemGroupAuthKey
)
2707 snprintf(auth_key
, auth_size
,
2709 SystemGroupAuthKey
);
2712 strlcpy(auth_key
, ", trc=\"y\"", auth_size
);
2713 #endif /* HAVE_AUTHORIZATION_H */
2721 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2722 "[Client %d] WWW-Authenticate: %s", con
->http
.fd
,
2725 if (httpPrintf(HTTP(con
), "WWW-Authenticate: %s\r\n", auth_str
) < 0)
2730 if (con
->language
&& strcmp(con
->language
->language
, "C"))
2732 if (httpPrintf(HTTP(con
), "Content-Language: %s\r\n",
2733 con
->language
->language
) < 0)
2739 if (!strcmp(type
, "text/html"))
2741 if (httpPrintf(HTTP(con
),
2742 "Content-Type: text/html; charset=utf-8\r\n") < 0)
2745 else if (httpPrintf(HTTP(con
), "Content-Type: %s\r\n", type
) < 0)
2754 * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs.
2758 cupsdUpdateCGI(void)
2760 char *ptr
, /* Pointer to end of line in buffer */
2761 message
[1024]; /* Pointer to message text */
2762 int loglevel
; /* Log level for message */
2765 while ((ptr
= cupsdStatBufUpdate(CGIStatusBuffer
, &loglevel
,
2766 message
, sizeof(message
))) != NULL
)
2768 if (loglevel
== CUPSD_LOG_INFO
)
2769 cupsdLogMessage(CUPSD_LOG_INFO
, "%s", message
);
2771 if (!strchr(CGIStatusBuffer
->buffer
, '\n'))
2775 if (ptr
== NULL
&& !CGIStatusBuffer
->bufused
)
2778 * Fatal error on pipe - should never happen!
2781 cupsdLogMessage(CUPSD_LOG_CRIT
,
2782 "cupsdUpdateCGI: error reading from CGI error pipe - %s",
2789 * 'cupsdWriteClient()' - Write data to a client as needed.
2793 cupsdWriteClient(cupsd_client_t
*con
) /* I - Client connection */
2795 int bytes
, /* Number of bytes written */
2796 field_col
; /* Current column */
2797 char *bufptr
, /* Pointer into buffer */
2798 *bufend
; /* Pointer to end of buffer */
2799 ipp_state_t ipp_state
; /* IPP state value */
2802 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2803 "[Client %d] cupsdWriteClient "
2807 "data_encoding=HTTP_ENCODING_%s, "
2808 "data_remaining=" CUPS_LLFMT
", "
2812 con
->http
.fd
, con
->http
.error
, con
->http
.used
,
2813 http_states
[con
->http
.state
+ 1],
2814 con
->http
.data_encoding
== HTTP_ENCODING_CHUNKED
?
2815 "CHUNKED" : "LENGTH",
2816 CUPS_LLCAST con
->http
.data_remaining
,
2818 con
->response
? ipp_states
[con
->response
->state
] : "",
2819 con
->pipe_pid
, con
->file
);
2821 if (con
->http
.state
!= HTTP_STATE_GET_SEND
&&
2822 con
->http
.state
!= HTTP_STATE_POST_SEND
)
2825 * If we get called in the wrong state, then something went wrong with the
2826 * connection and we need to shut it down...
2829 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2830 "[Client %d] Closing on unexpected HTTP state %s.",
2831 con
->http
.fd
, http_states
[con
->http
.state
+ 1]);
2832 cupsdCloseClient(con
);
2839 * Make sure we select on the CGI output...
2842 cupsdAddSelect(con
->file
, (cupsd_selfunc_t
)write_pipe
, NULL
, con
);
2844 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Waiting for CGI data.",
2847 if (!con
->file_ready
)
2850 * Try again later when there is CGI output available...
2853 cupsdRemoveSelect(con
->http
.fd
);
2857 con
->file_ready
= 0;
2860 bytes
= (ssize_t
)(sizeof(con
->header
) - (size_t)con
->header_used
);
2862 if (!con
->pipe_pid
&& bytes
> con
->http
.data_remaining
)
2865 * Limit GET bytes to original size of file (STR #3265)...
2868 bytes
= (ssize_t
)con
->http
.data_remaining
;
2871 if (con
->response
&& con
->response
->state
!= IPP_DATA
)
2873 int wused
= con
->http
.wused
; /* Previous write buffer use */
2878 * Write a single attribute or the IPP message header...
2881 ipp_state
= ippWrite(HTTP(con
), con
->response
);
2884 * If the write buffer has been flushed, stop buffering up attributes...
2887 if (con
->http
.wused
<= wused
)
2890 while (ipp_state
!= IPP_STATE_DATA
&& ipp_state
!= IPP_STATE_ERROR
);
2892 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2893 "[Client %d] Writing IPP response, ipp_state=%s, old "
2894 "wused=%d, new wused=%d", con
->http
.fd
,
2895 ipp_state
== IPP_STATE_ERROR
? "ERROR" :
2896 ipp_state
== IPP_STATE_IDLE
? "IDLE" :
2897 ipp_state
== IPP_STATE_HEADER
? "HEADER" :
2898 ipp_state
== IPP_STATE_ATTRIBUTE
? "ATTRIBUTE" : "DATA",
2899 wused
, con
->http
.wused
);
2901 if (con
->http
.wused
> 0)
2902 httpFlushWrite(HTTP(con
));
2904 bytes
= ipp_state
!= IPP_STATE_ERROR
&&
2905 (con
->file
>= 0 || ipp_state
!= IPP_STATE_DATA
);
2907 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2908 "[Client %d] bytes=%d, http_state=%d, "
2909 "data_remaining=" CUPS_LLFMT
,
2910 con
->http
.fd
, (int)bytes
, con
->http
.state
,
2911 CUPS_LLCAST con
->http
.data_remaining
);
2913 else if ((bytes
= read(con
->file
, con
->header
+ con
->header_used
, (size_t)bytes
)) > 0)
2915 con
->header_used
+= bytes
;
2917 if (con
->pipe_pid
&& !con
->got_fields
)
2920 * Inspect the data for Content-Type and other fields.
2923 for (bufptr
= con
->header
, bufend
= con
->header
+ con
->header_used
,
2925 !con
->got_fields
&& bufptr
< bufend
;
2928 if (*bufptr
== '\n')
2931 * Send line to client...
2934 if (bufptr
> con
->header
&& bufptr
[-1] == '\r')
2938 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Script header: %s", con
->header
);
2940 if (!con
->sent_header
)
2943 * Handle redirection and CGI status codes...
2946 if (!_cups_strncasecmp(con
->header
, "Location:", 9))
2948 if (!cupsdSendHeader(con
, HTTP_SEE_OTHER
, NULL
, CUPSD_AUTH_NONE
))
2950 cupsdCloseClient(con
);
2954 con
->sent_header
= 2;
2956 if (httpPrintf(HTTP(con
), "Content-Length: 0\r\n") < 0)
2959 else if (!_cups_strncasecmp(con
->header
, "Status:", 7))
2961 cupsdSendError(con
, (http_status_t
)atoi(con
->header
+ 7),
2963 con
->sent_header
= 2;
2967 if (!cupsdSendHeader(con
, HTTP_OK
, NULL
, CUPSD_AUTH_NONE
))
2969 cupsdCloseClient(con
);
2973 con
->sent_header
= 1;
2975 if (con
->http
.version
== HTTP_1_1
)
2977 if (httpPrintf(HTTP(con
), "Transfer-Encoding: chunked\r\n") < 0)
2983 if (_cups_strncasecmp(con
->header
, "Status:", 7))
2984 httpPrintf(HTTP(con
), "%s\r\n", con
->header
);
2990 con
->header_used
-= bufptr
- con
->header
;
2992 if (con
->header_used
> 0)
2993 memmove(con
->header
, bufptr
, con
->header_used
);
2995 bufptr
= con
->header
- 1;
2998 * See if the line was empty...
3003 con
->got_fields
= 1;
3005 if (cupsdFlushHeader(con
) < 0)
3007 cupsdCloseClient(con
);
3011 if (con
->http
.version
== HTTP_1_1
)
3012 con
->http
.data_encoding
= HTTP_ENCODING_CHUNKED
;
3017 else if (*bufptr
!= '\r')
3021 if (!con
->got_fields
)
3023 con
->http
.activity
= time(NULL
);
3028 if (con
->header_used
> 0)
3030 if (httpWrite2(HTTP(con
), con
->header
, con
->header_used
) < 0)
3032 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3033 "[Client %d] Closing for error %d (%s)",
3034 con
->http
.fd
, con
->http
.error
,
3035 strerror(con
->http
.error
));
3036 cupsdCloseClient(con
);
3040 if (con
->http
.data_encoding
== HTTP_ENCODING_CHUNKED
)
3041 httpFlushWrite(HTTP(con
));
3043 con
->bytes
+= con
->header_used
;
3045 if (con
->http
.state
== HTTP_STATE_WAITING
)
3048 bytes
= con
->header_used
;
3050 con
->header_used
= 0;
3055 (con
->http
.state
!= HTTP_STATE_GET_SEND
&&
3056 con
->http
.state
!= HTTP_STATE_POST_SEND
))
3058 if (!con
->sent_header
&& con
->pipe_pid
)
3059 cupsdSendError(con
, HTTP_SERVER_ERROR
, CUPSD_AUTH_NONE
);
3062 cupsdLogRequest(con
, HTTP_OK
);
3064 httpFlushWrite(HTTP(con
));
3066 if (con
->http
.data_encoding
== HTTP_ENCODING_CHUNKED
&&
3067 con
->sent_header
== 1)
3069 if (httpWrite2(HTTP(con
), "", 0) < 0)
3071 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3072 "[Client %d] Closing for error %d (%s)",
3073 con
->http
.fd
, con
->http
.error
,
3074 strerror(con
->http
.error
));
3075 cupsdCloseClient(con
);
3081 con
->http
.state
= HTTP_STATE_WAITING
;
3083 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
, NULL
, con
);
3085 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Waiting for request.",
3090 cupsdRemoveSelect(con
->file
);
3093 cupsdEndProcess(con
->pipe_pid
, 0);
3102 unlink(con
->filename
);
3103 cupsdClearString(&con
->filename
);
3108 ippDelete(con
->request
);
3109 con
->request
= NULL
;
3114 ippDelete(con
->response
);
3115 con
->response
= NULL
;
3118 cupsdClearString(&con
->command
);
3119 cupsdClearString(&con
->options
);
3120 cupsdClearString(&con
->query_string
);
3122 if (!con
->http
.keep_alive
)
3124 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3125 "[Client %d] Closing because Keep-Alive disabled.",
3127 cupsdCloseClient(con
);
3132 cupsArrayRemove(ActiveClients
, con
);
3133 cupsdSetBusyState();
3137 con
->http
.activity
= time(NULL
);
3142 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
3145 static int /* O - 1 if modified since */
3147 cupsd_client_t
*con
, /* I - Client connection */
3148 struct stat
*filestats
) /* I - File information */
3150 char *ptr
; /* Pointer into field */
3151 time_t date
; /* Time/date value */
3152 off_t size
; /* Size/length value */
3157 ptr
= con
->http
.fields
[HTTP_FIELD_IF_MODIFIED_SINCE
];
3162 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3163 "[Client %d] check_if_modified "
3164 "filestats=%p(" CUPS_LLFMT
", %d)) If-Modified-Since=\"%s\"",
3165 con
->http
.fd
, filestats
, CUPS_LLCAST filestats
->st_size
,
3166 (int)filestats
->st_mtime
, ptr
);
3168 while (*ptr
!= '\0')
3170 while (isspace(*ptr
) || *ptr
== ';')
3173 if (_cups_strncasecmp(ptr
, "length=", 7) == 0)
3176 size
= strtoll(ptr
, NULL
, 10);
3178 while (isdigit(*ptr
))
3181 else if (isalpha(*ptr
))
3183 date
= httpGetDateTime(ptr
);
3184 while (*ptr
!= '\0' && *ptr
!= ';')
3191 return ((size
!= filestats
->st_size
&& size
!= 0) ||
3192 (date
< filestats
->st_mtime
&& date
!= 0) ||
3193 (size
== 0 && date
== 0));
3198 * 'compare_clients()' - Compare two client connections.
3201 static int /* O - Result of comparison */
3202 compare_clients(cupsd_client_t
*a
, /* I - First client */
3203 cupsd_client_t
*b
, /* I - Second client */
3204 void *data
) /* I - User data (not used) */
3218 * 'data_ready()' - Check whether data is available from a client.
3221 static int /* O - 1 if data is ready, 0 otherwise */
3222 data_ready(cupsd_client_t
*con
) /* I - Client */
3224 if (con
->http
.used
> 0)
3227 else if (con
->http
.tls
)
3230 if (SSL_pending((SSL
*)(con
->http
.tls
)))
3232 # elif defined(HAVE_GNUTLS)
3233 if (gnutls_record_check_pending(con
->http
.tls
))
3235 # elif defined(HAVE_CDSASSL)
3236 size_t bytes
; /* Bytes that are available */
3238 if (!SSLGetBufferedReadSize(con
->http
.tls
, &bytes
) && bytes
> 0)
3240 # endif /* HAVE_LIBSSL */
3242 #endif /* HAVE_SSL */
3249 * 'get_file()' - Get a filename and state info.
3252 static char * /* O - Real filename */
3253 get_file(cupsd_client_t
*con
, /* I - Client connection */
3254 struct stat
*filestats
, /* O - File information */
3255 char *filename
, /* IO - Filename buffer */
3256 int len
) /* I - Buffer length */
3258 int status
; /* Status of filesystem calls */
3259 char *ptr
; /* Pointer info filename */
3260 int plen
; /* Remaining length after pointer */
3261 char language
[7]; /* Language subdirectory, if any */
3265 * Figure out the real filename...
3270 if (!strncmp(con
->uri
, "/ppd/", 5) && !strchr(con
->uri
+ 5, '/'))
3271 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
);
3272 else if (!strncmp(con
->uri
, "/icons/", 7) && !strchr(con
->uri
+ 7, '/'))
3274 snprintf(filename
, len
, "%s/%s", CacheDir
, con
->uri
+ 7);
3275 if (access(filename
, F_OK
) < 0)
3276 snprintf(filename
, len
, "%s/images/generic.png", DocumentRoot
);
3278 else if (!strncmp(con
->uri
, "/rss/", 5) && !strchr(con
->uri
+ 5, '/'))
3279 snprintf(filename
, len
, "%s/rss/%s", CacheDir
, con
->uri
+ 5);
3280 else if (!strncmp(con
->uri
, "/admin/conf/", 12))
3281 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
+ 11);
3282 else if (!strncmp(con
->uri
, "/admin/log/", 11))
3284 if (!strncmp(con
->uri
+ 11, "access_log", 10) && AccessLog
[0] == '/')
3285 strlcpy(filename
, AccessLog
, len
);
3286 else if (!strncmp(con
->uri
+ 11, "error_log", 9) && ErrorLog
[0] == '/')
3287 strlcpy(filename
, ErrorLog
, len
);
3288 else if (!strncmp(con
->uri
+ 11, "page_log", 8) && PageLog
[0] == '/')
3289 strlcpy(filename
, PageLog
, len
);
3293 else if (con
->language
)
3295 snprintf(language
, sizeof(language
), "/%s", con
->language
->language
);
3296 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
3299 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
3301 if ((ptr
= strchr(filename
, '?')) != NULL
)
3305 * Grab the status for this language; if there isn't a language-specific file
3306 * then fallback to the default one...
3309 if ((status
= stat(filename
, filestats
)) != 0 && language
[0] &&
3310 strncmp(con
->uri
, "/icons/", 7) &&
3311 strncmp(con
->uri
, "/ppd/", 5) &&
3312 strncmp(con
->uri
, "/rss/", 5) &&
3313 strncmp(con
->uri
, "/admin/conf/", 12) &&
3314 strncmp(con
->uri
, "/admin/log/", 11))
3317 * Drop the country code...
3321 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
3323 if ((ptr
= strchr(filename
, '?')) != NULL
)
3326 if ((status
= stat(filename
, filestats
)) != 0)
3329 * Drop the language prefix and try the root directory...
3333 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
3335 if ((ptr
= strchr(filename
, '?')) != NULL
)
3338 status
= stat(filename
, filestats
);
3343 * If we're found a directory, get the index.html file instead...
3346 if (!status
&& S_ISDIR(filestats
->st_mode
))
3349 * Make sure the URI ends with a slash...
3352 if (con
->uri
[strlen(con
->uri
) - 1] != '/')
3353 strlcat(con
->uri
, "/", sizeof(con
->uri
));
3356 * Find the directory index file, trying every language...
3361 if (status
&& language
[0])
3364 * Try a different language subset...
3368 language
[0] = '\0'; /* Strip country code */
3370 language
[0] = '\0'; /* Strip language */
3374 * Look for the index file...
3377 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
3379 if ((ptr
= strchr(filename
, '?')) != NULL
)
3382 ptr
= filename
+ strlen(filename
);
3383 plen
= len
- (ptr
- filename
);
3385 strlcpy(ptr
, "index.html", plen
);
3386 status
= stat(filename
, filestats
);
3391 strlcpy(ptr
, "index.class", plen
);
3392 status
= stat(filename
, filestats
);
3394 #endif /* HAVE_JAVA */
3399 strlcpy(ptr
, "index.pl", plen
);
3400 status
= stat(filename
, filestats
);
3402 #endif /* HAVE_PERL */
3407 strlcpy(ptr
, "index.php", plen
);
3408 status
= stat(filename
, filestats
);
3410 #endif /* HAVE_PHP */
3415 strlcpy(ptr
, "index.pyc", plen
);
3416 status
= stat(filename
, filestats
);
3421 strlcpy(ptr
, "index.py", plen
);
3422 status
= stat(filename
, filestats
);
3424 #endif /* HAVE_PYTHON */
3427 while (status
&& language
[0]);
3430 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3431 "[Client %d] get_file filestats=%p, filename=%p, len=%d, "
3432 "returning \"%s\".", con
->http
.fd
, filestats
, filename
, len
,
3433 status
? "(null)" : filename
);
3443 * 'install_cupsd_conf()' - Install a configuration file.
3446 static http_status_t
/* O - Status */
3447 install_cupsd_conf(cupsd_client_t
*con
) /* I - Connection */
3449 char filename
[1024]; /* Configuration filename */
3450 cups_file_t
*in
, /* Input file */
3451 *out
; /* Output file */
3452 char buffer
[16384]; /* Copy buffer */
3453 ssize_t bytes
; /* Number of bytes */
3457 * Open the request file...
3460 if ((in
= cupsFileOpen(con
->filename
, "rb")) == NULL
)
3462 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to open request file \"%s\": %s",
3463 con
->filename
, strerror(errno
));
3464 return (HTTP_SERVER_ERROR
);
3468 * Open the new config file...
3471 if ((out
= cupsdCreateConfFile(ConfigurationFile
, ConfigFilePerm
)) == NULL
)
3474 return (HTTP_SERVER_ERROR
);
3477 cupsdLogMessage(CUPSD_LOG_INFO
, "Installing config file \"%s\"...",
3481 * Copy from the request to the new config file...
3484 while ((bytes
= cupsFileRead(in
, buffer
, sizeof(buffer
))) > 0)
3485 if (cupsFileWrite(out
, buffer
, bytes
) < bytes
)
3487 cupsdLogMessage(CUPSD_LOG_ERROR
,
3488 "Unable to copy to config file \"%s\": %s",
3489 ConfigurationFile
, strerror(errno
));
3494 snprintf(filename
, sizeof(filename
), "%s.N", ConfigurationFile
);
3495 cupsdUnlinkOrRemoveFile(filename
);
3497 return (HTTP_SERVER_ERROR
);
3501 * Close the files...
3506 if (cupsdCloseCreatedConfFile(out
, ConfigurationFile
))
3507 return (HTTP_SERVER_ERROR
);
3510 * Remove the request file...
3513 cupsdUnlinkOrRemoveFile(con
->filename
);
3514 cupsdClearString(&con
->filename
);
3517 * Set the NeedReload flag...
3520 NeedReload
= RELOAD_CUPSD
;
3521 ReloadTime
= time(NULL
);
3524 * Return that the file was created successfully...
3527 return (HTTP_CREATED
);
3532 * 'is_cgi()' - Is the resource a CGI script/program?
3535 static int /* O - 1 = CGI, 0 = file */
3536 is_cgi(cupsd_client_t
*con
, /* I - Client connection */
3537 const char *filename
, /* I - Real filename */
3538 struct stat
*filestats
, /* I - File information */
3539 mime_type_t
*type
) /* I - MIME type */
3541 const char *options
; /* Options on URL */
3545 * Get the options, if any...
3548 if ((options
= strchr(con
->uri
, '?')) != NULL
)
3551 cupsdSetStringf(&(con
->query_string
), "QUERY_STRING=%s", options
);
3555 * Check for known types...
3558 if (!type
|| _cups_strcasecmp(type
->super
, "application"))
3560 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3561 "[Client %d] is_cgi filename=\"%s\", filestats=%p, "
3562 "type=%s/%s, returning 0", con
->http
.fd
, filename
,
3563 filestats
, type
? type
->super
: "unknown",
3564 type
? type
->type
: "unknown");
3568 if (!_cups_strcasecmp(type
->type
, "x-httpd-cgi") &&
3569 (filestats
->st_mode
& 0111))
3572 * "application/x-httpd-cgi" is a CGI script.
3575 cupsdSetString(&con
->command
, filename
);
3578 cupsdSetStringf(&con
->options
, " %s", options
);
3580 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3581 "[Client %d] is_cgi filename=\"%s\", filestats=%p, "
3582 "type=%s/%s, returning 1", con
->http
.fd
, filename
,
3583 filestats
, type
->super
, type
->type
);
3587 else if (!_cups_strcasecmp(type
->type
, "x-httpd-java"))
3590 * "application/x-httpd-java" is a Java servlet.
3593 cupsdSetString(&con
->command
, CUPS_JAVA
);
3596 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3598 cupsdSetStringf(&con
->options
, " %s", filename
);
3600 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3601 "[Client %d] is_cgi filename=\"%s\", filestats=%p, "
3602 "type=%s/%s, returning 1", con
->http
.fd
, filename
,
3603 filestats
, type
->super
, type
->type
);
3606 #endif /* HAVE_JAVA */
3608 else if (!_cups_strcasecmp(type
->type
, "x-httpd-perl"))
3611 * "application/x-httpd-perl" is a Perl page.
3614 cupsdSetString(&con
->command
, CUPS_PERL
);
3617 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3619 cupsdSetStringf(&con
->options
, " %s", filename
);
3621 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3622 "[Client %d] is_cgi filename=\"%s\", filestats=%p, "
3623 "type=%s/%s, returning 1", con
->http
.fd
, filename
,
3624 filestats
, type
->super
, type
->type
);
3627 #endif /* HAVE_PERL */
3629 else if (!_cups_strcasecmp(type
->type
, "x-httpd-php"))
3632 * "application/x-httpd-php" is a PHP page.
3635 cupsdSetString(&con
->command
, CUPS_PHP
);
3638 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3640 cupsdSetStringf(&con
->options
, " %s", filename
);
3642 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3643 "[Client %d] is_cgi filename=\"%s\", filestats=%p, "
3644 "type=%s/%s, returning 1", con
->http
.fd
, filename
,
3645 filestats
, type
->super
, type
->type
);
3648 #endif /* HAVE_PHP */
3650 else if (!_cups_strcasecmp(type
->type
, "x-httpd-python"))
3653 * "application/x-httpd-python" is a Python page.
3656 cupsdSetString(&con
->command
, CUPS_PYTHON
);
3659 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3661 cupsdSetStringf(&con
->options
, " %s", filename
);
3663 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3664 "[Client %d] is_cgi filename=\"%s\", filestats=%p, "
3665 "type=%s/%s, returning 1", con
->http
.fd
, filename
,
3666 filestats
, type
->super
, type
->type
);
3669 #endif /* HAVE_PYTHON */
3671 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3672 "[Client %d] is_cgi filename=\"%s\", filestats=%p, "
3673 "type=%s/%s, returning 0", con
->http
.fd
, filename
,
3674 filestats
, type
->super
, type
->type
);
3680 * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. "..").
3683 static int /* O - 0 if relative, 1 if absolute */
3684 is_path_absolute(const char *path
) /* I - Input path */
3687 * Check for a leading slash...
3694 * Check for "<" or quotes in the path and reject since this is probably
3695 * someone trying to inject HTML...
3698 if (strchr(path
, '<') != NULL
|| strchr(path
, '\"') != NULL
|| strchr(path
, '\'') != NULL
)
3702 * Check for "/.." in the path...
3705 while ((path
= strstr(path
, "/..")) != NULL
)
3707 if (!path
[3] || path
[3] == '/')
3714 * If we haven't found any relative paths, return 1 indicating an
3723 * 'pipe_command()' - Pipe the output of a command to the remote client.
3726 static int /* O - Process ID */
3727 pipe_command(cupsd_client_t
*con
, /* I - Client connection */
3728 int infile
, /* I - Standard input for command */
3729 int *outfile
, /* O - Standard output for command */
3730 char *command
, /* I - Command to run */
3731 char *options
, /* I - Options for command */
3732 int root
) /* I - Run as root? */
3734 int i
; /* Looping var */
3735 int pid
; /* Process ID */
3736 char *commptr
, /* Command string pointer */
3737 commch
; /* Command string character */
3738 char *uriptr
; /* URI string pointer */
3739 int fds
[2]; /* Pipe FDs */
3740 int argc
; /* Number of arguments */
3741 int envc
; /* Number of environment variables */
3742 char argbuf
[10240], /* Argument buffer */
3743 *argv
[100], /* Argument strings */
3744 *envp
[MAX_ENV
+ 20]; /* Environment variables */
3745 char auth_type
[256], /* AUTH_TYPE environment variable */
3746 content_length
[1024], /* CONTENT_LENGTH environment variable */
3747 content_type
[1024], /* CONTENT_TYPE environment variable */
3748 http_cookie
[32768], /* HTTP_COOKIE environment variable */
3749 http_referer
[1024], /* HTTP_REFERER environment variable */
3750 http_user_agent
[1024], /* HTTP_USER_AGENT environment variable */
3751 lang
[1024], /* LANG environment variable */
3752 path_info
[1024], /* PATH_INFO environment variable */
3753 remote_addr
[1024], /* REMOTE_ADDR environment variable */
3754 remote_host
[1024], /* REMOTE_HOST environment variable */
3755 remote_user
[1024], /* REMOTE_USER environment variable */
3756 script_filename
[1024], /* SCRIPT_FILENAME environment variable */
3757 script_name
[1024], /* SCRIPT_NAME environment variable */
3758 server_name
[1024], /* SERVER_NAME environment variable */
3759 server_port
[1024]; /* SERVER_PORT environment variable */
3760 ipp_attribute_t
*attr
; /* attributes-natural-language attribute */
3764 * Parse a copy of the options string, which is of the form:
3766 * argument+argument+argument
3767 * ?argument+argument+argument
3768 * param=value¶m=value
3769 * ?param=value¶m=value
3770 * /name?argument+argument+argument
3771 * /name?param=value¶m=value
3773 * If the string contains an "=" character after the initial name,
3774 * then we treat it as a HTTP GET form request and make a copy of
3775 * the remaining string for the environment variable.
3777 * The string is always parsed out as command-line arguments, to
3778 * be consistent with Apache...
3781 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3782 "[Client %d] pipe_command infile=%d, outfile=%p, "
3783 "command=\"%s\", options=\"%s\", root=%d",
3784 con
->http
.fd
, infile
, outfile
, command
,
3785 options
? options
: "(null)", root
);
3792 if (*commptr
== ' ')
3794 strlcpy(argbuf
, commptr
, sizeof(argbuf
));
3799 if (argbuf
[0] == '/')
3802 * Found some trailing path information, set PATH_INFO...
3805 if ((commptr
= strchr(argbuf
, '?')) == NULL
)
3806 commptr
= argbuf
+ strlen(argbuf
);
3810 snprintf(path_info
, sizeof(path_info
), "PATH_INFO=%s", argbuf
);
3816 path_info
[0] = '\0';
3818 if (*commptr
== ' ')
3822 if (*commptr
== '?' && con
->operation
== HTTP_STATE_GET
&& !con
->query_string
)
3825 cupsdSetStringf(&(con
->query_string
), "QUERY_STRING=%s", commptr
);
3832 argv
[argc
++] = commptr
;
3834 for (; *commptr
&& argc
< 99; commptr
++)
3837 * Break arguments whenever we see a + or space...
3840 if (*commptr
== ' ' || *commptr
== '+')
3842 while (*commptr
== ' ' || *commptr
== '+')
3846 * If we don't have a blank string, save it as another argument...
3851 argv
[argc
] = commptr
;
3857 else if (*commptr
== '%' && isxdigit(commptr
[1] & 255) &&
3858 isxdigit(commptr
[2] & 255))
3861 * Convert the %xx notation to the individual character.
3864 if (commptr
[1] >= '0' && commptr
[1] <= '9')
3865 *commptr
= (commptr
[1] - '0') << 4;
3867 *commptr
= (tolower(commptr
[1]) - 'a' + 10) << 4;
3869 if (commptr
[2] >= '0' && commptr
[2] <= '9')
3870 *commptr
|= commptr
[2] - '0';
3872 *commptr
|= tolower(commptr
[2]) - 'a' + 10;
3874 _cups_strcpy(commptr
+ 1, commptr
+ 3);
3877 * Check for a %00 and break if that is the case...
3889 * Setup the environment variables as needed...
3892 if (con
->username
[0])
3894 snprintf(auth_type
, sizeof(auth_type
), "AUTH_TYPE=%s",
3895 httpGetField(HTTP(con
), HTTP_FIELD_AUTHORIZATION
));
3897 if ((uriptr
= strchr(auth_type
+ 10, ' ')) != NULL
)
3901 auth_type
[0] = '\0';
3904 (attr
= ippFindAttribute(con
->request
, "attributes-natural-language",
3905 IPP_TAG_LANGUAGE
)) != NULL
)
3907 switch (strlen(attr
->values
[0].string
.text
))
3911 * This is an unknown or badly formatted language code; use
3912 * the POSIX locale...
3915 strlcpy(lang
, "LANG=C", sizeof(lang
));
3920 * Just the language code (ll)...
3923 snprintf(lang
, sizeof(lang
), "LANG=%s.UTF8",
3924 attr
->values
[0].string
.text
);
3929 * Language and country code (ll-cc)...
3932 snprintf(lang
, sizeof(lang
), "LANG=%c%c_%c%c.UTF8",
3933 attr
->values
[0].string
.text
[0],
3934 attr
->values
[0].string
.text
[1],
3935 toupper(attr
->values
[0].string
.text
[3] & 255),
3936 toupper(attr
->values
[0].string
.text
[4] & 255));
3940 else if (con
->language
)
3941 snprintf(lang
, sizeof(lang
), "LANG=%s.UTF8", con
->language
->language
);
3943 strlcpy(lang
, "LANG=C", sizeof(lang
));
3945 strlcpy(remote_addr
, "REMOTE_ADDR=", sizeof(remote_addr
));
3946 httpAddrString(con
->http
.hostaddr
, remote_addr
+ 12,
3947 sizeof(remote_addr
) - 12);
3949 snprintf(remote_host
, sizeof(remote_host
), "REMOTE_HOST=%s",
3950 con
->http
.hostname
);
3952 snprintf(script_name
, sizeof(script_name
), "SCRIPT_NAME=%s", con
->uri
);
3953 if ((uriptr
= strchr(script_name
, '?')) != NULL
)
3956 snprintf(script_filename
, sizeof(script_filename
), "SCRIPT_FILENAME=%s%s",
3957 DocumentRoot
, script_name
+ 12);
3959 sprintf(server_port
, "SERVER_PORT=%d", con
->serverport
);
3961 if (con
->http
.fields
[HTTP_FIELD_HOST
][0])
3963 char *nameptr
; /* Pointer to ":port" */
3965 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s",
3966 con
->http
.fields
[HTTP_FIELD_HOST
]);
3967 if ((nameptr
= strrchr(server_name
, ':')) != NULL
&& !strchr(nameptr
, ']'))
3968 *nameptr
= '\0'; /* Strip trailing ":port" */
3971 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s",
3974 envc
= cupsdLoadEnv(envp
, (int)(sizeof(envp
) / sizeof(envp
[0])));
3977 envp
[envc
++] = auth_type
;
3979 envp
[envc
++] = lang
;
3980 envp
[envc
++] = "REDIRECT_STATUS=1";
3981 envp
[envc
++] = "GATEWAY_INTERFACE=CGI/1.1";
3982 envp
[envc
++] = server_name
;
3983 envp
[envc
++] = server_port
;
3984 envp
[envc
++] = remote_addr
;
3985 envp
[envc
++] = remote_host
;
3986 envp
[envc
++] = script_name
;
3987 envp
[envc
++] = script_filename
;
3990 envp
[envc
++] = path_info
;
3992 if (con
->username
[0])
3994 snprintf(remote_user
, sizeof(remote_user
), "REMOTE_USER=%s", con
->username
);
3996 envp
[envc
++] = remote_user
;
3999 if (con
->http
.version
== HTTP_1_1
)
4000 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.1";
4001 else if (con
->http
.version
== HTTP_1_0
)
4002 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.0";
4004 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/0.9";
4006 if (con
->http
.cookie
)
4008 snprintf(http_cookie
, sizeof(http_cookie
), "HTTP_COOKIE=%s",
4010 envp
[envc
++] = http_cookie
;
4013 if (con
->http
.fields
[HTTP_FIELD_USER_AGENT
][0])
4015 snprintf(http_user_agent
, sizeof(http_user_agent
), "HTTP_USER_AGENT=%s",
4016 con
->http
.fields
[HTTP_FIELD_USER_AGENT
]);
4017 envp
[envc
++] = http_user_agent
;
4020 if (con
->http
.fields
[HTTP_FIELD_REFERER
][0])
4022 snprintf(http_referer
, sizeof(http_referer
), "HTTP_REFERER=%s",
4023 con
->http
.fields
[HTTP_FIELD_REFERER
]);
4024 envp
[envc
++] = http_referer
;
4027 if (con
->operation
== HTTP_STATE_GET
)
4029 envp
[envc
++] = "REQUEST_METHOD=GET";
4031 if (con
->query_string
)
4034 * Add GET form variables after ?...
4037 envp
[envc
++] = con
->query_string
;
4040 envp
[envc
++] = "QUERY_STRING=";
4044 sprintf(content_length
, "CONTENT_LENGTH=" CUPS_LLFMT
,
4045 CUPS_LLCAST con
->bytes
);
4046 snprintf(content_type
, sizeof(content_type
), "CONTENT_TYPE=%s",
4047 con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
4049 envp
[envc
++] = "REQUEST_METHOD=POST";
4050 envp
[envc
++] = content_length
;
4051 envp
[envc
++] = content_type
;
4055 * Tell the CGI if we are using encryption...
4059 envp
[envc
++] = "HTTPS=ON";
4062 * Terminate the environment array...
4067 if (LogLevel
>= CUPSD_LOG_DEBUG
)
4069 for (i
= 0; i
< argc
; i
++)
4070 cupsdLogMessage(CUPSD_LOG_DEBUG
,
4071 "[CGI] argv[%d] = \"%s\"", i
, argv
[i
]);
4072 for (i
= 0; i
< envc
; i
++)
4073 cupsdLogMessage(CUPSD_LOG_DEBUG
,
4074 "[CGI] envp[%d] = \"%s\"", i
, envp
[i
]);
4078 * Create a pipe for the output...
4081 if (cupsdOpenPipe(fds
))
4083 cupsdLogMessage(CUPSD_LOG_ERROR
, "[CGI] Unable to create pipe for %s - %s",
4084 argv
[0], strerror(errno
));
4089 * Then execute the command...
4092 if (cupsdStartProcess(command
, argv
, envp
, infile
, fds
[1], CGIPipes
[1],
4093 -1, -1, root
, DefaultProfile
, NULL
, &pid
) < 0)
4096 * Error - can't fork!
4099 cupsdLogMessage(CUPSD_LOG_ERROR
, "[CGI] Unable to start %s - %s", argv
[0],
4102 cupsdClosePipe(fds
);
4108 * Fork successful - return the PID...
4111 if (con
->username
[0])
4112 cupsdAddCert(pid
, con
->username
, con
->type
);
4114 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[CGI] Started %s (PID %d)", command
, pid
);
4125 * 'valid_host()' - Is the Host: field valid?
4128 static int /* O - 1 if valid, 0 if not */
4129 valid_host(cupsd_client_t
*con
) /* I - Client connection */
4131 cupsd_alias_t
*a
; /* Current alias */
4132 cupsd_netif_t
*netif
; /* Current network interface */
4133 const char *end
; /* End character */
4134 char *ptr
; /* Pointer into host value */
4138 * Copy the Host: header for later use...
4141 strlcpy(con
->clientname
, con
->http
.fields
[HTTP_FIELD_HOST
],
4142 sizeof(con
->clientname
));
4143 if ((ptr
= strrchr(con
->clientname
, ':')) != NULL
&& !strchr(ptr
, ']'))
4146 con
->clientport
= atoi(ptr
);
4149 con
->clientport
= con
->serverport
;
4155 if (httpAddrLocalhost(con
->http
.hostaddr
))
4158 * Only allow "localhost" or the equivalent IPv4 or IPv6 numerical
4159 * addresses when accessing CUPS via the loopback interface...
4162 return (!_cups_strcasecmp(con
->clientname
, "localhost") ||
4163 !_cups_strcasecmp(con
->clientname
, "localhost.") ||
4165 !_cups_strcasecmp(con
->clientname
, "localhost.localdomain") ||
4166 #endif /* __linux */
4167 !strcmp(con
->clientname
, "127.0.0.1") ||
4168 !strcmp(con
->clientname
, "[::1]"));
4171 #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
4173 * Check if the hostname is something.local (Bonjour); if so, allow it.
4176 if ((end
= strrchr(con
->clientname
, '.')) != NULL
&& end
> con
->clientname
&&
4180 * "." on end, work back to second-to-last "."...
4183 for (end
--; end
> con
->clientname
&& *end
!= '.'; end
--);
4186 if (end
&& (!_cups_strcasecmp(end
, ".local") ||
4187 !_cups_strcasecmp(end
, ".local.")))
4189 #endif /* HAVE_DNSSD || HAVE_AVAHI */
4192 * Check if the hostname is an IP address...
4195 if (isdigit(con
->clientname
[0] & 255) || con
->clientname
[0] == '[')
4198 * Possible IPv4/IPv6 address...
4201 http_addrlist_t
*addrlist
; /* List of addresses */
4204 if ((addrlist
= httpAddrGetList(con
->clientname
, AF_UNSPEC
, NULL
)) != NULL
)
4207 * Good IPv4/IPv6 address...
4210 httpAddrFreeList(addrlist
);
4216 * Check for (alias) name matches...
4219 for (a
= (cupsd_alias_t
*)cupsArrayFirst(ServerAlias
);
4221 a
= (cupsd_alias_t
*)cupsArrayNext(ServerAlias
))
4224 * "ServerAlias *" allows all host values through...
4227 if (!strcmp(a
->name
, "*"))
4230 if (!_cups_strncasecmp(con
->clientname
, a
->name
, a
->namelen
))
4233 * Prefix matches; check the character at the end - it must be "." or nul.
4236 end
= con
->clientname
+ a
->namelen
;
4238 if (!*end
|| (*end
== '.' && !end
[1]))
4243 #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
4244 for (a
= (cupsd_alias_t
*)cupsArrayFirst(DNSSDAlias
);
4246 a
= (cupsd_alias_t
*)cupsArrayNext(DNSSDAlias
))
4249 * "ServerAlias *" allows all host values through...
4252 if (!strcmp(a
->name
, "*"))
4255 if (!_cups_strncasecmp(con
->clientname
, a
->name
, a
->namelen
))
4258 * Prefix matches; check the character at the end - it must be "." or nul.
4261 end
= con
->clientname
+ a
->namelen
;
4263 if (!*end
|| (*end
== '.' && !end
[1]))
4267 #endif /* HAVE_DNSSD || HAVE_AVAHI */
4270 * Check for interface hostname matches...
4273 for (netif
= (cupsd_netif_t
*)cupsArrayFirst(NetIFList
);
4275 netif
= (cupsd_netif_t
*)cupsArrayNext(NetIFList
))
4277 if (!_cups_strncasecmp(con
->clientname
, netif
->hostname
, netif
->hostlen
))
4280 * Prefix matches; check the character at the end - it must be "." or nul.
4283 end
= con
->clientname
+ netif
->hostlen
;
4285 if (!*end
|| (*end
== '.' && !end
[1]))
4295 * 'write_file()' - Send a file via HTTP.
4298 static int /* O - 0 on failure, 1 on success */
4299 write_file(cupsd_client_t
*con
, /* I - Client connection */
4300 http_status_t code
, /* I - HTTP status */
4301 char *filename
, /* I - Filename */
4302 char *type
, /* I - File type */
4303 struct stat
*filestats
) /* O - File information */
4305 con
->file
= open(filename
, O_RDONLY
);
4307 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
4308 "[Client %d] write_file code=%d, filename=\"%s\" (%d), "
4309 "type=\"%s\", filestats=%p", con
->http
.fd
,
4310 code
, filename
, con
->file
, type
? type
: "(null)", filestats
);
4315 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
4319 if (!cupsdSendHeader(con
, code
, type
, CUPSD_AUTH_NONE
))
4322 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
4323 httpGetDateString(filestats
->st_mtime
)) < 0)
4325 if (httpPrintf(HTTP(con
), "Content-Length: " CUPS_LLFMT
"\r\n",
4326 CUPS_LLCAST filestats
->st_size
) < 0)
4328 if (httpPrintf(HTTP(con
), "\r\n") < 0)
4331 if (cupsdFlushHeader(con
) < 0)
4334 con
->http
.data_encoding
= HTTP_ENCODING_LENGTH
;
4335 con
->http
.data_remaining
= filestats
->st_size
;
4337 if (con
->http
.data_remaining
<= INT_MAX
)
4338 con
->http
._data_remaining
= con
->http
.data_remaining
;
4340 con
->http
._data_remaining
= INT_MAX
;
4342 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
,
4343 (cupsd_selfunc_t
)cupsdWriteClient
, con
);
4345 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] Sending file.", con
->http
.fd
);
4352 * 'write_pipe()' - Flag that data is available on the CGI pipe.
4356 write_pipe(cupsd_client_t
*con
) /* I - Client connection */
4358 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
4359 "[Client %d] write_pipe CGI output on fd %d",
4360 con
->http
.fd
, con
->file
);
4362 con
->file_ready
= 1;
4364 cupsdRemoveSelect(con
->file
);
4365 cupsdAddSelect(con
->http
.fd
, NULL
, (cupsd_selfunc_t
)cupsdWriteClient
, con
);
4367 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[Client %d] CGI data ready to be sent.",
4373 * End of "$Id: client.c 11642 2014-02-27 15:57:59Z msweet $".