2 * "$Id: client.c 5373 2006-04-06 20:03:32Z mike $"
4 * Client routines for the Common UNIX Printing System (CUPS) scheduler.
6 * Copyright 1997-2006 by Easy Software Products, all rights reserved.
8 * These coded instructions, statements, and computer programs are the
9 * property of Easy Software Products and are protected by Federal
10 * copyright law. Distribution and use rights are outlined in the file
11 * "LICENSE.txt" which should have been included with this file. If this
12 * file is missing or damaged please contact Easy Software Products
15 * Attn: CUPS Licensing Information
16 * Easy Software Products
17 * 44141 Airport View Drive, Suite 204
18 * Hollywood, Maryland 20636 USA
20 * Voice: (301) 373-9600
21 * EMail: cups-info@cups.org
22 * WWW: http://www.cups.org
26 * cupsdAcceptClient() - Accept a new client.
27 * cupsdCloseAllClients() - Close all remote clients immediately.
28 * cupsdCloseClient() - Close a remote client.
29 * cupsdReadClient() - Read data from a client.
30 * cupsdSendCommand() - Send output from a command via HTTP.
31 * cupsdSendError() - Send an error message via HTTP.
32 * cupsdSendHeader() - Send an HTTP request.
33 * cupsdUpdateCGI() - Read status messages from CGI scripts and programs.
34 * cupsdWriteClient() - Write data to a client as needed.
35 * check_if_modified() - Decode an "If-Modified-Since" line.
36 * encrypt_client() - Enable encryption for the client...
37 * get_cdsa_server_certs() - Convert a keychain name into the CFArrayRef
38 * required by SSLSetCertificate.
39 * get_file() - Get a filename and state info.
40 * install_conf_file() - Install a configuration file.
41 * is_cgi() - Is the resource a CGI script/program?
42 * is_path_absolute() - Is a path absolute and free of relative elements.
43 * make_certificate() - Make a self-signed SSL/TLS certificate.
44 * pipe_command() - Pipe the output of a command to the remote client.
45 * send_file() - Send a file via HTTP.
49 * Include necessary headers...
52 #include <cups/http-private.h>
56 # include <Security/Security.h>
57 #endif /* HAVE_CDSASSL */
59 # include <gnutls/x509.h>
60 #endif /* HAVE_GNUTLS */
67 static int check_if_modified(cupsd_client_t
*con
,
68 struct stat
*filestats
);
70 static int encrypt_client(cupsd_client_t
*con
);
73 static CFArrayRef
get_cdsa_server_certs(void);
74 #endif /* HAVE_CDSASSL */
75 static char *get_file(cupsd_client_t
*con
, struct stat
*filestats
,
76 char *filename
, int len
);
77 static http_status_t
install_conf_file(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
);
82 static void make_certificate(void);
83 #endif /* HAVE_GNUTLS */
84 static int pipe_command(cupsd_client_t
*con
, int infile
, int *outfile
,
85 char *command
, char *options
, int root
);
86 static int send_file(cupsd_client_t
*con
, http_status_t code
,
87 char *filename
, char *type
,
88 struct stat
*filestats
);
92 * 'cupsdAcceptClient()' - Accept a new client.
96 cupsdAcceptClient(cupsd_listener_t
*lis
)/* I - Listener socket */
98 int count
; /* Count of connections on a host */
99 int val
; /* Parameter value */
100 cupsd_client_t
*con
, /* New client pointer */
101 *tempcon
; /* Temporary client pointer */
102 http_addrlist_t
*addrlist
, /* List of adddresses for host */
103 *addr
; /* Current address */
104 socklen_t addrlen
; /* Length of address */
105 char *hostname
; /* Hostname for address */
106 http_addr_t temp
; /* Temporary address variable */
107 static time_t last_dos
= 0; /* Time of last DoS attack */
110 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
111 "cupsdAcceptClient(lis=%p) %d Clients = %d",
112 lis
, lis
->fd
, cupsArrayCount(Clients
));
115 * Make sure we don't have a full set of clients already...
118 if (cupsArrayCount(Clients
) == MaxClients
)
122 * Get a pointer to the next available client...
126 Clients
= cupsArrayNew(NULL
, NULL
);
131 con
= calloc(1, sizeof(cupsd_client_t
));
133 con
->http
.activity
= time(NULL
);
135 con
->http
.hostaddr
= &(con
->clientaddr
);
138 * Accept the client and get the remote address...
141 addrlen
= sizeof(http_addr_t
);
143 if ((con
->http
.fd
= accept(lis
->fd
, (struct sockaddr
*)con
->http
.hostaddr
,
146 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to accept client connection - %s.",
153 if (lis
->address
.addr
.sa_family
== AF_INET6
)
156 * Save the connected port number...
159 con
->http
.hostaddr
->ipv6
.sin6_port
= lis
->address
.ipv6
.sin6_port
;
162 * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we
163 * can more easily use...
166 if (con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[0] == 0 &&
167 con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[1] == 0 &&
168 ntohl(con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[2]) == 0xffff)
169 con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[2] = 0;
172 #endif /* AF_INET6 */
173 if (lis
->address
.addr
.sa_family
== AF_INET
)
174 con
->http
.hostaddr
->ipv4
.sin_port
= lis
->address
.ipv4
.sin_port
;
177 * Check the number of clients on the same address...
180 for (count
= 0, tempcon
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
182 tempcon
= (cupsd_client_t
*)cupsArrayNext(Clients
))
183 if (httpAddrEqual(tempcon
->http
.hostaddr
, con
->http
.hostaddr
))
186 if (count
>= MaxClientsPerHost
)
190 if (count
>= MaxClientsPerHost
)
192 if ((time(NULL
) - last_dos
) >= 60)
194 last_dos
= time(NULL
);
195 cupsdLogMessage(CUPSD_LOG_WARN
,
196 "Possible DoS attack - more than %d clients connecting "
198 MaxClientsPerHost
, tempcon
->http
.hostname
);
202 closesocket(con
->http
.fd
);
212 * Get the hostname or format the IP address as needed...
215 if (httpAddrLocalhost(con
->http
.hostaddr
))
218 * Map accesses from the loopback interface to "localhost"...
221 strlcpy(con
->http
.hostname
, "localhost", sizeof(con
->http
.hostname
));
222 hostname
= con
->http
.hostname
;
227 * Map accesses from the same host to the server name.
230 for (addr
= ServerAddrs
; addr
; addr
= addr
->next
)
231 if (httpAddrEqual(con
->http
.hostaddr
, &(addr
->addr
)))
236 strlcpy(con
->http
.hostname
, ServerName
, sizeof(con
->http
.hostname
));
237 hostname
= con
->http
.hostname
;
239 else if (HostNameLookups
)
240 hostname
= httpAddrLookup(con
->http
.hostaddr
, con
->http
.hostname
,
241 sizeof(con
->http
.hostname
));
245 httpAddrString(con
->http
.hostaddr
, con
->http
.hostname
,
246 sizeof(con
->http
.hostname
));
250 if (hostname
== NULL
&& HostNameLookups
== 2)
253 * Can't have an unresolved IP address with double-lookups enabled...
256 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
257 "cupsdAcceptClient: Closing connection %d...",
261 closesocket(con
->http
.fd
);
266 cupsdLogMessage(CUPSD_LOG_WARN
,
267 "Name lookup failed - connection from %s closed!",
274 if (HostNameLookups
== 2)
277 * Do double lookups as needed...
280 if ((addrlist
= httpAddrGetList(con
->http
.hostname
, AF_UNSPEC
, NULL
)) != NULL
)
283 * See if the hostname maps to the same IP address...
286 for (addr
= addrlist
; addr
; addr
= addr
->next
)
287 if (httpAddrEqual(con
->http
.hostaddr
, &(addr
->addr
)))
293 httpAddrFreeList(addrlist
);
298 * Can't have a hostname that doesn't resolve to the same IP address
299 * with double-lookups enabled...
302 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
303 "cupsdAcceptClient: Closing connection %d...",
307 closesocket(con
->http
.fd
);
312 cupsdLogMessage(CUPSD_LOG_WARN
,
313 "IP lookup failed - connection from %s closed!",
321 if (con
->http
.hostaddr
->addr
.sa_family
== AF_INET6
)
322 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdAcceptClient: %d from %s:%d (IPv6)",
323 con
->http
.fd
, con
->http
.hostname
,
324 ntohs(con
->http
.hostaddr
->ipv6
.sin6_port
));
326 #endif /* AF_INET6 */
328 if (con
->http
.hostaddr
->addr
.sa_family
== AF_LOCAL
)
329 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdAcceptClient: %d from %s (Domain)",
330 con
->http
.fd
, con
->http
.hostname
);
332 #endif /* AF_LOCAL */
333 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdAcceptClient: %d from %s:%d (IPv4)",
334 con
->http
.fd
, con
->http
.hostname
,
335 ntohs(con
->http
.hostaddr
->ipv4
.sin_port
));
338 * Get the local address the client connected to...
341 addrlen
= sizeof(temp
);
342 if (getsockname(con
->http
.fd
, (struct sockaddr
*)&temp
, &addrlen
))
344 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to get local address - %s",
347 strcpy(con
->servername
, "localhost");
348 con
->serverport
= LocalPort
;
353 if (temp
.addr
.sa_family
== AF_INET6
)
355 httpAddrLookup(&temp
, con
->servername
, sizeof(con
->servername
));
356 con
->serverport
= ntohs(lis
->address
.ipv6
.sin6_port
);
359 #endif /* AF_INET6 */
360 if (temp
.addr
.sa_family
== AF_INET
)
362 httpAddrLookup(&temp
, con
->servername
, sizeof(con
->servername
));
363 con
->serverport
= ntohs(lis
->address
.ipv4
.sin_port
);
367 strcpy(con
->servername
, "localhost");
368 con
->serverport
= LocalPort
;
372 cupsArrayAdd(Clients
, con
);
374 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
375 "cupsdAcceptClient: %d connected to server on %s:%d",
376 con
->http
.fd
, con
->servername
, con
->serverport
);
379 * Using TCP_NODELAY improves responsiveness, especially on systems
380 * with a slow loopback interface... Since we write large buffers
381 * when sending print files and requests, there shouldn't be any
382 * performance penalty for this...
386 setsockopt(con
->http
.fd
, IPPROTO_TCP
, TCP_NODELAY
, &val
, sizeof(val
));
389 * Close this file on all execs...
392 fcntl(con
->http
.fd
, F_SETFD
, fcntl(con
->http
.fd
, F_GETFD
) | FD_CLOEXEC
);
395 * Add the socket to the select() input mask.
398 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
399 "cupsdAcceptClient: Adding fd %d to InputSet...",
401 FD_SET(con
->http
.fd
, InputSet
);
404 * Temporarily suspend accept()'s until we lose a client...
407 if (cupsArrayCount(Clients
) == MaxClients
)
408 cupsdPauseListening();
412 * See if we are connecting on a secure port...
415 if (lis
->encryption
== HTTP_ENCRYPT_ALWAYS
)
418 * https connection; go secure...
421 con
->http
.encryption
= HTTP_ENCRYPT_ALWAYS
;
427 #endif /* HAVE_SSL */
432 * 'cupsdCloseAllClients()' - Close all remote clients immediately.
436 cupsdCloseAllClients(void)
438 cupsd_client_t
*con
; /* Current client */
441 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
443 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
444 cupsdCloseClient(con
);
449 * 'cupsdCloseClient()' - Close a remote client.
452 int /* O - 1 if partial close, 0 if fully closed */
453 cupsdCloseClient(cupsd_client_t
*con
) /* I - Client to close */
455 int partial
; /* Do partial close for SSL? */
457 SSL_CTX
*context
; /* Context for encryption */
458 SSL
*conn
; /* Connection for encryption */
459 unsigned long error
; /* Error code */
460 #elif defined(HAVE_GNUTLS)
461 http_tls_t
*conn
; /* TLS connection information */
462 int error
; /* Error code */
463 gnutls_certificate_server_credentials
*credentials
;
464 /* TLS credentials */
465 #endif /* HAVE_LIBSSL */
468 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdCloseClient: %d", con
->http
.fd
);
471 * Flush pending writes before closing...
474 httpFlushWrite(HTTP(con
));
480 * Shutdown encryption as needed...
488 conn
= (SSL
*)(con
->http
.tls
);
489 context
= SSL_get_SSL_CTX(conn
);
491 switch (SSL_shutdown(conn
))
494 cupsdLogMessage(CUPSD_LOG_INFO
,
495 "cupsdCloseClient: SSL shutdown successful!");
498 cupsdLogMessage(CUPSD_LOG_ERROR
,
499 "cupsdCloseClient: Fatal error during SSL shutdown!");
501 while ((error
= ERR_get_error()) != 0)
502 cupsdLogMessage(CUPSD_LOG_ERROR
, "cupsdCloseClient: %s",
503 ERR_error_string(error
, NULL
));
507 SSL_CTX_free(context
);
510 # elif defined(HAVE_GNUTLS)
511 conn
= (http_tls_t
*)(con
->http
.tls
);
512 credentials
= (gnutls_certificate_server_credentials
*)(conn
->credentials
);
514 error
= gnutls_bye(conn
->session
, GNUTLS_SHUT_WR
);
517 case GNUTLS_E_SUCCESS
:
518 cupsdLogMessage(CUPSD_LOG_INFO
,
519 "cupsdCloseClient: SSL shutdown successful!");
522 cupsdLogMessage(CUPSD_LOG_ERROR
,
523 "cupsdCloseClient: %s", gnutls_strerror(error
));
527 gnutls_deinit(conn
->session
);
528 gnutls_certificate_free_credentials(*credentials
);
532 # elif defined(HAVE_CDSASSL)
533 while (SSLClose((SSLContextRef
)con
->http
.tls
) == errSSLWouldBlock
)
536 SSLDisposeContext((SSLContextRef
)con
->http
.tls
);
537 # endif /* HAVE_LIBSSL */
539 con
->http
.tls
= NULL
;
541 #endif /* HAVE_SSL */
543 if (con
->pipe_pid
!= 0)
546 * Stop any CGI process...
549 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
550 "cupsdCloseClient: %d Killing process ID %d...",
551 con
->http
.fd
, con
->pipe_pid
);
552 cupsdEndProcess(con
->pipe_pid
, 1);
558 if (FD_ISSET(con
->file
, InputSet
))
560 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
561 "cupsdCloseClient: %d Removing fd %d from InputSet...",
562 con
->http
.fd
, con
->file
);
563 FD_CLR(con
->file
, InputSet
);
566 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
567 "cupsdCloseClient: %d Closing data file %d.",
568 con
->http
.fd
, con
->file
);
575 * Close the socket and clear the file from the input set for select()...
578 if (con
->http
.fd
> 0)
583 * Only do a partial close so that the encrypted client gets everything.
586 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
587 "cupsdCloseClient: Removing fd %d from OutputSet...",
589 shutdown(con
->http
.fd
, 0);
590 FD_CLR(con
->http
.fd
, OutputSet
);
595 * Shut the socket down fully...
598 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
599 "cupsdCloseClient: Removing fd %d from InputSet and OutputSet...",
602 FD_CLR(con
->http
.fd
, InputSet
);
603 FD_CLR(con
->http
.fd
, OutputSet
);
614 if (con
->http
.input_set
)
615 free(con
->http
.input_set
);
617 httpClearCookie(HTTP(con
));
619 cupsdClearString(&con
->filename
);
620 cupsdClearString(&con
->command
);
621 cupsdClearString(&con
->options
);
625 ippDelete(con
->request
);
631 ippDelete(con
->response
);
632 con
->response
= NULL
;
637 cupsLangFree(con
->language
);
638 con
->language
= NULL
;
642 * Re-enable new client connections if we are going back under the
646 if (cupsArrayCount(Clients
) == MaxClients
)
647 cupsdResumeListening();
650 * Compact the list of clients as necessary...
653 cupsArrayRemove(Clients
, con
);
663 * 'cupsdReadClient()' - Read data from a client.
666 int /* O - 1 on success, 0 on error */
667 cupsdReadClient(cupsd_client_t
*con
) /* I - Client to read from */
669 char line
[32768], /* Line from client... */
670 operation
[64], /* Operation code from socket */
671 version
[64], /* HTTP version number string */
672 locale
[64], /* Locale */
673 *ptr
; /* Pointer into strings */
674 int major
, minor
; /* HTTP version numbers */
675 http_status_t status
; /* Transfer status */
676 ipp_state_t ipp_state
; /* State of IPP transfer */
677 int bytes
; /* Number of bytes to POST */
678 char *filename
; /* Name of file for GET/HEAD */
679 char buf
[1024]; /* Buffer for real filename */
680 struct stat filestats
; /* File information */
681 mime_type_t
*type
; /* MIME type of file */
682 cupsd_printer_t
*p
; /* Printer */
683 static unsigned request_id
= 0; /* Request ID for temp files */
686 status
= HTTP_CONTINUE
;
688 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
689 "cupsdReadClient: %d, used=%d, file=%d state=%d",
690 con
->http
.fd
, con
->http
.used
, con
->file
, con
->http
.state
);
694 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "cupsdReadClient: http error seen...");
695 return (cupsdCloseClient(con
));
702 * Automatically check for a SSL/TLS handshake...
707 if (recv(con
->http
.fd
, buf
, 1, MSG_PEEK
) == 1 &&
708 (!buf
[0] || !strchr("DGHOPT", buf
[0])))
711 * Encrypt this connection...
714 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
715 "cupsdReadClient: Saw first byte %02X, auto-negotiating SSL/TLS session...",
722 #endif /* HAVE_SSL */
724 switch (con
->http
.state
)
728 * See if we've received a request line...
731 if (httpGets(line
, sizeof(line
) - 1, HTTP(con
)) == NULL
)
733 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
734 "cupsdReadClient: httpGets returned EOF...");
735 return (cupsdCloseClient(con
));
739 * Ignore blank request lines...
746 * Clear other state variables...
749 httpClearFields(HTTP(con
));
751 con
->http
.activity
= time(NULL
);
752 con
->http
.version
= HTTP_1_0
;
753 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
754 con
->http
.data_encoding
= HTTP_ENCODE_LENGTH
;
755 con
->http
.data_remaining
= 0;
756 con
->http
._data_remaining
= 0;
757 con
->operation
= HTTP_WAITING
;
762 con
->username
[0] = '\0';
763 con
->password
[0] = '\0';
766 cupsdClearString(&con
->command
);
767 cupsdClearString(&con
->options
);
769 if (con
->language
!= NULL
)
771 cupsLangFree(con
->language
);
772 con
->language
= NULL
;
776 * Grab the request line...
779 switch (sscanf(line
, "%63s%1023s%63s", operation
, con
->uri
, version
))
782 cupsdLogMessage(CUPSD_LOG_ERROR
,
783 "Bad request line \"%s\" from %s!", line
,
785 cupsdSendError(con
, HTTP_BAD_REQUEST
);
786 return (cupsdCloseClient(con
));
788 con
->http
.version
= HTTP_0_9
;
791 if (sscanf(version
, "HTTP/%d.%d", &major
, &minor
) != 2)
793 cupsdLogMessage(CUPSD_LOG_ERROR
,
794 "Bad request line \"%s\" from %s!", line
,
796 cupsdSendError(con
, HTTP_BAD_REQUEST
);
797 return (cupsdCloseClient(con
));
802 con
->http
.version
= (http_version_t
)(major
* 100 + minor
);
803 if (con
->http
.version
== HTTP_1_1
&& KeepAlive
)
804 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
806 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
810 cupsdSendError(con
, HTTP_NOT_SUPPORTED
);
811 return (cupsdCloseClient(con
));
817 * Handle full URLs in the request line...
820 if (strcmp(con
->uri
, "*"))
822 char method
[HTTP_MAX_URI
], /* Method/scheme */
823 userpass
[HTTP_MAX_URI
], /* Username:password */
824 hostname
[HTTP_MAX_URI
], /* Hostname */
825 resource
[HTTP_MAX_URI
]; /* Resource path */
826 int port
; /* Port number */
830 * Separate the URI into its components...
833 httpSeparateURI(HTTP_URI_CODING_MOST
, con
->uri
,
834 method
, sizeof(method
),
835 userpass
, sizeof(userpass
),
836 hostname
, sizeof(hostname
), &port
,
837 resource
, sizeof(resource
));
840 * Only allow URIs with the servername, localhost, or an IP
844 if (strcmp(method
, "file") &&
845 strcasecmp(hostname
, ServerName
) &&
846 strcasecmp(hostname
, "localhost") &&
847 !isdigit(hostname
[0]))
850 * Nope, we don't do proxies...
853 cupsdLogMessage(CUPSD_LOG_ERROR
, "Bad URI \"%s\" in request!",
855 cupsdSendError(con
, HTTP_METHOD_NOT_ALLOWED
);
856 return (cupsdCloseClient(con
));
860 * Copy the resource portion back into the URI; both resource and
861 * con->uri are HTTP_MAX_URI bytes in size...
864 strcpy(con
->uri
, resource
);
868 * Process the request...
871 if (!strcmp(operation
, "GET"))
872 con
->http
.state
= HTTP_GET
;
873 else if (!strcmp(operation
, "PUT"))
874 con
->http
.state
= HTTP_PUT
;
875 else if (!strcmp(operation
, "POST"))
876 con
->http
.state
= HTTP_POST
;
877 else if (!strcmp(operation
, "DELETE"))
878 con
->http
.state
= HTTP_DELETE
;
879 else if (!strcmp(operation
, "TRACE"))
880 con
->http
.state
= HTTP_TRACE
;
881 else if (!strcmp(operation
, "OPTIONS"))
882 con
->http
.state
= HTTP_OPTIONS
;
883 else if (!strcmp(operation
, "HEAD"))
884 con
->http
.state
= HTTP_HEAD
;
887 cupsdLogMessage(CUPSD_LOG_ERROR
, "Bad operation \"%s\"!", operation
);
888 cupsdSendError(con
, HTTP_BAD_REQUEST
);
889 return (cupsdCloseClient(con
));
892 con
->start
= time(NULL
);
893 con
->operation
= con
->http
.state
;
895 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdReadClient: %d %s %s HTTP/%d.%d", con
->http
.fd
,
897 con
->http
.version
/ 100, con
->http
.version
% 100);
899 con
->http
.status
= HTTP_OK
;
909 * Parse incoming parameters until the status changes...
912 status
= httpUpdate(HTTP(con
));
914 if (status
!= HTTP_OK
&& status
!= HTTP_CONTINUE
)
916 cupsdSendError(con
, HTTP_BAD_REQUEST
);
917 return (cupsdCloseClient(con
));
922 break; /* Anti-compiler-warning-code */
926 * Handle new transfers...
929 if (status
== HTTP_OK
)
931 if (con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
][0])
934 * Figure out the locale from the Accept-Language and Content-Type
938 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ',')) != NULL
)
941 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ';')) != NULL
)
944 if ((ptr
= strstr(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
], "charset=")) != NULL
)
947 * Combine language and charset, and trim any extra params in the
951 snprintf(locale
, sizeof(locale
), "%s.%s",
952 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ptr
+ 8);
954 if ((ptr
= strchr(locale
, ',')) != NULL
)
958 snprintf(locale
, sizeof(locale
), "%s.%s",
959 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], DefaultCharset
);
961 con
->language
= cupsLangGet(locale
);
964 con
->language
= cupsLangGet(DefaultLocale
);
968 if (!strncmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Keep-Alive", 10) &&
970 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
972 if (!con
->http
.fields
[HTTP_FIELD_HOST
][0] &&
973 con
->http
.version
>= HTTP_1_1
)
976 * HTTP/1.1 and higher require the "Host:" field...
979 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
))
980 return (cupsdCloseClient(con
));
982 else if (con
->operation
== HTTP_OPTIONS
)
985 * Do OPTIONS command...
988 if (con
->best
&& con
->best
->type
!= AUTH_NONE
)
990 if (!cupsdSendHeader(con
, HTTP_UNAUTHORIZED
, NULL
))
991 return (cupsdCloseClient(con
));
994 if (!strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") &&
995 con
->http
.tls
== NULL
)
999 * Do encryption stuff...
1002 if (!cupsdSendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
))
1003 return (cupsdCloseClient(con
));
1005 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1006 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1007 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1008 httpPrintf(HTTP(con
), "\r\n");
1010 encrypt_client(con
);
1012 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
))
1013 return (cupsdCloseClient(con
));
1014 #endif /* HAVE_SSL */
1017 if (!cupsdSendHeader(con
, HTTP_OK
, NULL
))
1018 return (cupsdCloseClient(con
));
1020 httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n");
1021 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1022 httpPrintf(HTTP(con
), "\r\n");
1024 else if (!is_path_absolute(con
->uri
))
1027 * Protect against malicious users!
1030 if (!cupsdSendError(con
, HTTP_FORBIDDEN
))
1031 return (cupsdCloseClient(con
));
1035 if (!strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") &&
1036 con
->http
.tls
== NULL
)
1040 * Do encryption stuff...
1043 if (!cupsdSendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
))
1044 return (cupsdCloseClient(con
));
1046 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1047 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1048 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1049 httpPrintf(HTTP(con
), "\r\n");
1051 encrypt_client(con
);
1053 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
))
1054 return (cupsdCloseClient(con
));
1055 #endif /* HAVE_SSL */
1058 if ((status
= cupsdIsAuthorized(con
, NULL
)) != HTTP_OK
)
1060 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1061 "cupsdReadClient: Unauthorized request for %s...\n",
1063 cupsdSendError(con
, status
);
1064 return (cupsdCloseClient(con
));
1067 if (con
->http
.expect
&&
1068 (con
->operation
== HTTP_POST
|| con
->operation
== HTTP_PUT
))
1070 if (con
->http
.expect
== HTTP_CONTINUE
)
1073 * Send 100-continue header...
1076 if (!cupsdSendHeader(con
, HTTP_CONTINUE
, NULL
))
1077 return (cupsdCloseClient(con
));
1082 * Send 417-expectation-failed header...
1085 if (!cupsdSendHeader(con
, HTTP_EXPECTATION_FAILED
, NULL
))
1086 return (cupsdCloseClient(con
));
1088 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1089 httpPrintf(HTTP(con
), "\r\n");
1093 switch (con
->http
.state
)
1095 case HTTP_GET_SEND
:
1096 if (!strncmp(con
->uri
, "/printers/", 10) &&
1097 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1100 * Send PPD file - get the real printer name since printer
1101 * names are not case sensitive but filenames can be...
1104 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1106 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1107 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1110 if (!cupsdSendError(con
, HTTP_NOT_FOUND
))
1111 return (cupsdCloseClient(con
));
1117 if ((!strncmp(con
->uri
, "/admin", 6) &&
1118 strncmp(con
->uri
, "/admin/conf/", 12) &&
1119 strncmp(con
->uri
, "/admin/log/", 11)) ||
1120 !strncmp(con
->uri
, "/printers", 9) ||
1121 !strncmp(con
->uri
, "/classes", 8) ||
1122 !strncmp(con
->uri
, "/help", 5) ||
1123 !strncmp(con
->uri
, "/jobs", 5))
1126 * Send CGI output...
1129 if (!strncmp(con
->uri
, "/admin", 6))
1131 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1134 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1136 else if (!strncmp(con
->uri
, "/printers", 9))
1138 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1141 if (con
->uri
[9] && con
->uri
[10])
1142 cupsdSetString(&con
->options
, con
->uri
+ 9);
1144 cupsdSetString(&con
->options
, NULL
);
1146 else if (!strncmp(con
->uri
, "/classes", 8))
1148 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1151 if (con
->uri
[8] && con
->uri
[9])
1152 cupsdSetString(&con
->options
, con
->uri
+ 8);
1154 cupsdSetString(&con
->options
, NULL
);
1156 else if (!strncmp(con
->uri
, "/jobs", 5))
1158 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1161 if (con
->uri
[5] && con
->uri
[6])
1162 cupsdSetString(&con
->options
, con
->uri
+ 5);
1164 cupsdSetString(&con
->options
, NULL
);
1168 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1171 if (con
->uri
[5] && con
->uri
[6])
1172 cupsdSetString(&con
->options
, con
->uri
+ 5);
1174 cupsdSetString(&con
->options
, NULL
);
1177 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1179 if (!cupsdSendError(con
, HTTP_NOT_FOUND
))
1180 return (cupsdCloseClient(con
));
1183 cupsdLogRequest(con
, HTTP_OK
);
1185 if (con
->http
.version
<= HTTP_1_0
)
1186 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1188 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1189 (strchr(con
->uri
+ 12, '/') ||
1190 strlen(con
->uri
) == 12)) ||
1191 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1192 (strchr(con
->uri
+ 11, '/') ||
1193 strlen(con
->uri
) == 11)))
1196 * GET can only be done to configuration files under
1200 if (!cupsdSendError(con
, HTTP_FORBIDDEN
))
1201 return (cupsdCloseClient(con
));
1211 if ((filename
= get_file(con
, &filestats
, buf
,
1212 sizeof(buf
))) == NULL
)
1214 if (!cupsdSendError(con
, HTTP_NOT_FOUND
))
1215 return (cupsdCloseClient(con
));
1220 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1222 if (is_cgi(con
, filename
, &filestats
, type
))
1225 * Note: con->command and con->options were set by
1229 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1231 if (!cupsdSendError(con
, HTTP_NOT_FOUND
))
1232 return (cupsdCloseClient(con
));
1235 cupsdLogRequest(con
, HTTP_OK
);
1237 if (con
->http
.version
<= HTTP_1_0
)
1238 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1242 if (!check_if_modified(con
, &filestats
))
1244 if (!cupsdSendError(con
, HTTP_NOT_MODIFIED
))
1245 return (cupsdCloseClient(con
));
1250 strcpy(line
, "text/plain");
1252 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1254 if (!send_file(con
, HTTP_OK
, filename
, line
, &filestats
))
1255 return (cupsdCloseClient(con
));
1260 case HTTP_POST_RECV
:
1262 * See if the POST request includes a Content-Length field, and if
1263 * so check the length against any limits that are set...
1266 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "POST %s", con
->uri
);
1267 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "CONTENT_TYPE = %s",
1268 con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
1270 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1271 MaxRequestSize
> 0 &&
1272 con
->http
.data_remaining
> MaxRequestSize
)
1275 * Request too large...
1278 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1279 return (cupsdCloseClient(con
));
1283 else if (con
->http
.data_remaining
< 0)
1286 * Negative content lengths are invalid!
1289 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
))
1290 return (cupsdCloseClient(con
));
1296 * See what kind of POST request this is; for IPP requests the
1297 * content-type field will be "application/ipp"...
1300 if (!strcmp(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
],
1302 con
->request
= ippNew();
1303 else if ((!strncmp(con
->uri
, "/admin", 6) &&
1304 strncmp(con
->uri
, "/admin/conf/", 12) &&
1305 strncmp(con
->uri
, "/admin/log/", 11)) ||
1306 !strncmp(con
->uri
, "/printers", 9) ||
1307 !strncmp(con
->uri
, "/classes", 8) ||
1308 !strncmp(con
->uri
, "/help", 5) ||
1309 !strncmp(con
->uri
, "/jobs", 5))
1315 if (!strncmp(con
->uri
, "/admin", 6))
1317 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1320 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1322 else if (!strncmp(con
->uri
, "/printers", 9))
1324 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1327 if (con
->uri
[9] && con
->uri
[10])
1328 cupsdSetString(&con
->options
, con
->uri
+ 9);
1330 cupsdSetString(&con
->options
, NULL
);
1332 else if (!strncmp(con
->uri
, "/classes", 8))
1334 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1337 if (con
->uri
[8] && con
->uri
[9])
1338 cupsdSetString(&con
->options
, con
->uri
+ 8);
1340 cupsdSetString(&con
->options
, NULL
);
1342 else if (!strncmp(con
->uri
, "/jobs", 5))
1344 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1347 if (con
->uri
[5] && con
->uri
[6])
1348 cupsdSetString(&con
->options
, con
->uri
+ 5);
1350 cupsdSetString(&con
->options
, NULL
);
1354 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1357 if (con
->uri
[5] && con
->uri
[6])
1358 cupsdSetString(&con
->options
, con
->uri
+ 5);
1360 cupsdSetString(&con
->options
, NULL
);
1363 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1364 "cupsdReadClient: %d command=\"%s\", "
1366 con
->http
.fd
, con
->command
, con
->options
);
1368 if (con
->http
.version
<= HTTP_1_0
)
1369 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1377 if ((filename
= get_file(con
, &filestats
, buf
,
1378 sizeof(buf
))) == NULL
)
1380 if (!cupsdSendError(con
, HTTP_NOT_FOUND
))
1381 return (cupsdCloseClient(con
));
1386 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1388 if (!is_cgi(con
, filename
, &filestats
, type
))
1391 * Only POST to CGI's...
1394 if (!cupsdSendError(con
, HTTP_UNAUTHORIZED
))
1395 return (cupsdCloseClient(con
));
1400 case HTTP_PUT_RECV
:
1402 * Validate the resource name...
1405 if (strncmp(con
->uri
, "/admin/conf/", 12) ||
1406 strchr(con
->uri
+ 12, '/') ||
1407 strlen(con
->uri
) == 12)
1410 * PUT can only be done to configuration files under
1414 if (!cupsdSendError(con
, HTTP_FORBIDDEN
))
1415 return (cupsdCloseClient(con
));
1421 * See if the PUT request includes a Content-Length field, and if
1422 * so check the length against any limits that are set...
1425 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "PUT %s", con
->uri
);
1426 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "CONTENT_TYPE = %s",
1427 con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
1429 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1430 MaxRequestSize
> 0 &&
1431 con
->http
.data_remaining
> MaxRequestSize
)
1434 * Request too large...
1437 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1438 return (cupsdCloseClient(con
));
1442 else if (con
->http
.data_remaining
< 0)
1445 * Negative content lengths are invalid!
1448 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
))
1449 return (cupsdCloseClient(con
));
1455 * Open a temporary file to hold the request...
1458 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
,
1460 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1462 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1463 "cupsdReadClient: %d REQUEST %s=%d", con
->http
.fd
,
1464 con
->filename
, con
->file
);
1468 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1469 return (cupsdCloseClient(con
));
1472 fchmod(con
->file
, 0640);
1473 fchown(con
->file
, RunUser
, Group
);
1474 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1479 cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
);
1480 return (cupsdCloseClient(con
));
1483 if (!strncmp(con
->uri
, "/printers/", 10) &&
1484 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1487 * Send PPD file - get the real printer name since printer
1488 * names are not case sensitive but filenames can be...
1491 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1493 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1494 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1497 if (!cupsdSendError(con
, HTTP_NOT_FOUND
))
1498 return (cupsdCloseClient(con
));
1504 if ((!strncmp(con
->uri
, "/admin", 6) &&
1505 strncmp(con
->uri
, "/admin/conf/", 12) &&
1506 strncmp(con
->uri
, "/admin/log/", 11)) ||
1507 !strncmp(con
->uri
, "/printers", 9) ||
1508 !strncmp(con
->uri
, "/classes", 8) ||
1509 !strncmp(con
->uri
, "/help", 5) ||
1510 !strncmp(con
->uri
, "/jobs", 5))
1516 if (!cupsdSendHeader(con
, HTTP_OK
, "text/html"))
1517 return (cupsdCloseClient(con
));
1519 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1520 return (cupsdCloseClient(con
));
1522 cupsdLogRequest(con
, HTTP_OK
);
1524 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1525 (strchr(con
->uri
+ 12, '/') ||
1526 strlen(con
->uri
) == 12)) ||
1527 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1528 (strchr(con
->uri
+ 11, '/') ||
1529 strlen(con
->uri
) == 11)))
1532 * HEAD can only be done to configuration files under
1536 if (!cupsdSendError(con
, HTTP_FORBIDDEN
))
1537 return (cupsdCloseClient(con
));
1541 else if ((filename
= get_file(con
, &filestats
, buf
,
1542 sizeof(buf
))) == NULL
)
1544 if (!cupsdSendHeader(con
, HTTP_NOT_FOUND
, "text/html"))
1545 return (cupsdCloseClient(con
));
1547 cupsdLogRequest(con
, HTTP_NOT_FOUND
);
1549 else if (!check_if_modified(con
, &filestats
))
1551 if (!cupsdSendError(con
, HTTP_NOT_MODIFIED
))
1552 return (cupsdCloseClient(con
));
1554 cupsdLogRequest(con
, HTTP_NOT_MODIFIED
);
1562 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1564 strcpy(line
, "text/plain");
1566 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1568 if (!cupsdSendHeader(con
, HTTP_OK
, line
))
1569 return (cupsdCloseClient(con
));
1571 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
1572 httpGetDateString(filestats
.st_mtime
)) < 0)
1573 return (cupsdCloseClient(con
));
1575 if (httpPrintf(HTTP(con
), "Content-Length: %lu\r\n",
1576 (unsigned long)filestats
.st_size
) < 0)
1577 return (cupsdCloseClient(con
));
1579 cupsdLogRequest(con
, HTTP_OK
);
1582 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1583 return (cupsdCloseClient(con
));
1585 con
->http
.state
= HTTP_WAITING
;
1589 break; /* Anti-compiler-warning-code */
1595 * Handle any incoming data...
1598 switch (con
->http
.state
)
1600 case HTTP_PUT_RECV
:
1601 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1602 "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_%s, "
1603 "con->data_remaining=" CUPS_LLFMT
", con->file=%d",
1605 con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
?
1606 "CHUNKED" : "LENGTH",
1607 CUPS_LLCAST con
->http
.data_remaining
, con
->file
);
1609 if ((bytes
= httpRead2(HTTP(con
), line
, sizeof(line
))) < 0)
1610 return (cupsdCloseClient(con
));
1613 con
->bytes
+= bytes
;
1615 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1616 "cupsdReadClient: %d writing %d bytes to %d",
1617 con
->http
.fd
, bytes
, con
->file
);
1619 if (write(con
->file
, line
, bytes
) < bytes
)
1621 cupsdLogMessage(CUPSD_LOG_ERROR
,
1622 "cupsdReadClient: Unable to write %d bytes to %s: %s",
1623 bytes
, con
->filename
, strerror(errno
));
1625 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1626 "cupsdReadClient: Closing data file %d...",
1631 unlink(con
->filename
);
1632 cupsdClearString(&con
->filename
);
1634 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1635 return (cupsdCloseClient(con
));
1639 if (con
->http
.state
== HTTP_WAITING
)
1642 * End of file, see how big it is...
1645 fstat(con
->file
, &filestats
);
1647 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1648 "cupsdReadClient: %d Closing data file %d, size="
1650 con
->http
.fd
, con
->file
,
1651 CUPS_LLCAST filestats
.st_size
);
1656 if (filestats
.st_size
> MaxRequestSize
&&
1660 * Request is too big; remove it and send an error...
1663 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1664 "cupsdReadClient: %d Removing temp file %s",
1665 con
->http
.fd
, con
->filename
);
1666 unlink(con
->filename
);
1667 cupsdClearString(&con
->filename
);
1669 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1670 return (cupsdCloseClient(con
));
1674 * Install the configuration file...
1677 status
= install_conf_file(con
);
1680 * Return the status to the client...
1683 if (!cupsdSendError(con
, status
))
1684 return (cupsdCloseClient(con
));
1688 case HTTP_POST_RECV
:
1689 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1690 "cupsdReadClient: %d con->data_encoding=HTTP_ENCODE_"
1691 "%s, con->data_remaining=" CUPS_LLFMT
", con->file=%d",
1693 con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
?
1694 "CHUNKED" : "LENGTH",
1695 CUPS_LLCAST con
->http
.data_remaining
, con
->file
);
1697 if (con
->request
!= NULL
)
1700 * Grab any request data from the connection...
1703 if ((ipp_state
= ippRead(&(con
->http
), con
->request
)) == IPP_ERROR
)
1705 cupsdLogMessage(CUPSD_LOG_ERROR
,
1706 "cupsdReadClient: %d IPP Read Error!",
1709 cupsdSendError(con
, HTTP_BAD_REQUEST
);
1710 return (cupsdCloseClient(con
));
1712 else if (ipp_state
!= IPP_DATA
)
1714 if (con
->http
.state
== HTTP_POST_SEND
)
1716 cupsdSendError(con
, HTTP_BAD_REQUEST
);
1717 return (cupsdCloseClient(con
));
1723 con
->bytes
+= ippLength(con
->request
);
1726 if (con
->file
< 0 && con
->http
.state
!= HTTP_POST_SEND
)
1729 * Create a file as needed for the request data...
1732 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
, request_id
++);
1733 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1735 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "cupsdReadClient: %d REQUEST %s=%d", con
->http
.fd
,
1736 con
->filename
, con
->file
);
1740 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1741 return (cupsdCloseClient(con
));
1744 fchmod(con
->file
, 0640);
1745 fchown(con
->file
, RunUser
, Group
);
1746 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1749 if (con
->http
.state
!= HTTP_POST_SEND
)
1751 if ((bytes
= httpRead2(HTTP(con
), line
, sizeof(line
))) < 0)
1752 return (cupsdCloseClient(con
));
1755 con
->bytes
+= bytes
;
1757 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1758 "cupsdReadClient: %d writing %d bytes to %d",
1759 con
->http
.fd
, bytes
, con
->file
);
1761 if (write(con
->file
, line
, bytes
) < bytes
)
1763 cupsdLogMessage(CUPSD_LOG_ERROR
,
1764 "cupsdReadClient: Unable to write %d bytes to %s: %s",
1765 bytes
, con
->filename
, strerror(errno
));
1767 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1768 "cupsdReadClient: Closing file %d...",
1773 unlink(con
->filename
);
1774 cupsdClearString(&con
->filename
);
1776 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1777 return (cupsdCloseClient(con
));
1780 else if (con
->http
.state
== HTTP_POST_RECV
)
1781 return (1); /* ??? */
1782 else if (con
->http
.state
!= HTTP_POST_SEND
)
1783 return (cupsdCloseClient(con
));
1786 if (con
->http
.state
== HTTP_POST_SEND
)
1790 fstat(con
->file
, &filestats
);
1792 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1793 "cupsdReadClient: %d Closing data file %d, "
1794 "size=" CUPS_LLFMT
".",
1795 con
->http
.fd
, con
->file
,
1796 CUPS_LLCAST filestats
.st_size
);
1801 if (filestats
.st_size
> MaxRequestSize
&&
1805 * Request is too big; remove it and send an error...
1808 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1809 "cupsdReadClient: %d Removing temp file %s",
1810 con
->http
.fd
, con
->filename
);
1811 unlink(con
->filename
);
1812 cupsdClearString(&con
->filename
);
1817 * Delete any IPP request data...
1820 ippDelete(con
->request
);
1821 con
->request
= NULL
;
1824 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
))
1825 return (cupsdCloseClient(con
));
1830 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1832 if (!cupsdSendError(con
, HTTP_NOT_FOUND
))
1833 return (cupsdCloseClient(con
));
1836 cupsdLogRequest(con
, HTTP_OK
);
1841 return (cupsdProcessIPPRequest(con
));
1846 break; /* Anti-compiler-warning-code */
1849 if (!con
->http
.keep_alive
&& con
->http
.state
== HTTP_WAITING
)
1850 return (cupsdCloseClient(con
));
1857 * 'cupsdSendCommand()' - Send output from a command via HTTP.
1860 int /* O - 1 on success, 0 on failure */
1862 cupsd_client_t
*con
, /* I - Client connection */
1863 char *command
, /* I - Command to run */
1864 char *options
, /* I - Command-line options */
1865 int root
) /* I - Run as root? */
1867 int fd
; /* Standard input file descriptor */
1871 fd
= open(con
->filename
, O_RDONLY
);
1873 fd
= open("/dev/null", O_RDONLY
);
1877 cupsdLogMessage(CUPSD_LOG_ERROR
,
1878 "cupsdSendCommand: %d Unable to open \"%s\" for reading: %s",
1879 con
->http
.fd
, con
->filename
? con
->filename
: "/dev/null",
1884 fcntl(fd
, F_SETFD
, fcntl(fd
, F_GETFD
) | FD_CLOEXEC
);
1886 con
->pipe_pid
= pipe_command(con
, fd
, &(con
->file
), command
, options
, root
);
1890 cupsdLogMessage(CUPSD_LOG_INFO
, "Started \"%s\" (pid=%d)", command
,
1893 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdSendCommand: %d file=%d",
1894 con
->http
.fd
, con
->file
);
1896 if (con
->pipe_pid
== 0)
1899 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1901 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1902 "cupsdSendCommand: Adding fd %d to InputSet...", con
->file
);
1903 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1904 "cupsdSendCommand: Adding fd %d to OutputSet...",
1907 FD_SET(con
->file
, InputSet
);
1908 FD_SET(con
->http
.fd
, OutputSet
);
1910 con
->sent_header
= 0;
1911 con
->file_ready
= 0;
1912 con
->got_fields
= 0;
1920 * 'cupsdSendError()' - Send an error message via HTTP.
1923 int /* O - 1 if successful, 0 otherwise */
1924 cupsdSendError(cupsd_client_t
*con
, /* I - Connection */
1925 http_status_t code
) /* I - Error code */
1929 * Force client to upgrade for authentication if that is how the
1930 * server is configured...
1933 if (code
== HTTP_UNAUTHORIZED
&&
1934 DefaultEncryption
== HTTP_ENCRYPT_REQUIRED
&&
1935 strcasecmp(con
->http
.hostname
, "localhost") &&
1938 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
1939 "cupsdSendError: Encryption before authentication!");
1940 code
= HTTP_UPGRADE_REQUIRED
;
1942 #endif /* HAVE_SSL */
1945 * Put the request in the access_log file...
1948 cupsdLogRequest(con
, code
);
1950 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdSendError: %d code=%d (%s)",
1951 con
->http
.fd
, code
, httpStatus(code
));
1954 * To work around bugs in some proxies, don't use Keep-Alive for some
1958 if (code
>= HTTP_BAD_REQUEST
)
1959 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1962 * Send an error message back to the client. If the error code is a
1963 * 400 or 500 series, make sure the message contains some text, too!
1966 if (!cupsdSendHeader(con
, code
, NULL
))
1970 if (code
== HTTP_UPGRADE_REQUIRED
)
1971 if (httpPrintf(HTTP(con
), "Connection: Upgrade\r\n") < 0)
1974 if (httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0)
1976 #endif /* HAVE_SSL */
1978 if ((con
->http
.version
>= HTTP_1_1
&& !con
->http
.keep_alive
) ||
1979 (code
>= HTTP_BAD_REQUEST
&& code
!= HTTP_UPGRADE_REQUIRED
))
1981 if (httpPrintf(HTTP(con
), "Connection: close\r\n") < 0)
1985 if (code
>= HTTP_BAD_REQUEST
)
1988 * Send a human-readable error message.
1991 char message
[4096], /* Message for user */
1992 urltext
[1024], /* URL redirection text */
1993 redirect
[1024]; /* Redirection link */
1994 const char *text
; /* Status-specific text */
1999 if (code
== HTTP_UNAUTHORIZED
)
2000 text
= _cupsLangString(con
->language
,
2001 _("Enter your username and password or the "
2002 "root username and password to access this "
2004 else if (code
== HTTP_UPGRADE_REQUIRED
)
2008 snprintf(urltext
, sizeof(urltext
),
2009 _cupsLangString(con
->language
,
2010 _("You must access this page using the URL "
2011 "<A HREF=\"https://%s:%d%s\">"
2012 "https://%s:%d%s</A>.")),
2013 con
->servername
, con
->serverport
, con
->uri
,
2014 con
->servername
, con
->serverport
, con
->uri
);
2016 snprintf(redirect
, sizeof(redirect
),
2017 "<META HTTP-EQUIV=\"Refresh\" CONTENT=\"3;https://%s:%d%s\">\n",
2018 con
->servername
, con
->serverport
, con
->uri
);
2023 snprintf(message
, sizeof(message
),
2024 "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" "
2025 "\"http://www.w3.org/TR/REC-html40/loose.dtd\">\n"
2028 "\t<META HTTP-EQUIV=\"Content-Type\" "
2029 "CONTENT=\"text/html; charset=utf-8\">\n"
2030 "\t<TITLE>%d %s</TITLE>\n"
2031 "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" "
2032 "HREF=\"/cups.css\">\n"
2040 code
, httpStatus(code
), redirect
, code
, httpStatus(code
), text
);
2042 if (httpPrintf(HTTP(con
), "Content-Type: text/html; charset=utf-8\r\n") < 0)
2044 if (httpPrintf(HTTP(con
), "Content-Length: %d\r\n",
2045 (int)strlen(message
)) < 0)
2047 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2049 if (httpPrintf(HTTP(con
), "%s", message
) < 0)
2052 else if (httpPrintf(HTTP(con
), "\r\n") < 0)
2055 con
->http
.state
= HTTP_WAITING
;
2062 * 'cupsdSendHeader()' - Send an HTTP request.
2065 int /* O - 1 on success, 0 on failure */
2066 cupsdSendHeader(cupsd_client_t
*con
, /* I - Client to send to */
2067 http_status_t code
, /* I - HTTP status code */
2068 char *type
) /* I - MIME type of document */
2071 * Send the HTTP status header...
2074 if (httpPrintf(HTTP(con
), "HTTP/%d.%d %d %s\r\n", con
->http
.version
/ 100,
2075 con
->http
.version
% 100, code
, httpStatus(code
)) < 0)
2078 if (code
== HTTP_CONTINUE
)
2081 * 100-continue doesn't send any headers...
2084 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2090 if (httpPrintf(HTTP(con
), "Date: %s\r\n", httpGetDateString(time(NULL
))) < 0)
2093 if (httpPrintf(HTTP(con
), "Server: %s\r\n", ServerHeader
) < 0)
2095 if (con
->http
.keep_alive
&& con
->http
.version
>= HTTP_1_0
)
2097 if (httpPrintf(HTTP(con
), "Connection: Keep-Alive\r\n") < 0)
2099 if (httpPrintf(HTTP(con
), "Keep-Alive: timeout=%d\r\n",
2100 KeepAliveTimeout
) < 0)
2103 if (code
== HTTP_METHOD_NOT_ALLOWED
)
2104 if (httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST\r\n") < 0)
2107 if (code
== HTTP_UNAUTHORIZED
)
2109 int auth_type
; /* Authentication type */
2112 if (!con
->best
|| con
->best
->type
== AUTH_NONE
)
2113 auth_type
= DefaultAuthType
;
2115 auth_type
= con
->best
->type
;
2117 if (auth_type
!= AUTH_DIGEST
)
2119 if (httpPrintf(HTTP(con
),
2120 "WWW-Authenticate: Basic realm=\"CUPS\"\r\n") < 0)
2125 if (httpPrintf(HTTP(con
),
2126 "WWW-Authenticate: Digest realm=\"CUPS\", nonce=\"%s\"\r\n",
2127 con
->http
.hostname
) < 0)
2132 if (con
->language
&& strcmp(con
->language
->language
, "C"))
2134 if (httpPrintf(HTTP(con
), "Content-Language: %s\r\n",
2135 con
->language
->language
) < 0)
2141 if (!strcmp(type
, "text/html"))
2143 if (httpPrintf(HTTP(con
),
2144 "Content-Type: text/html; charset=utf-8\r\n") < 0)
2147 else if (httpPrintf(HTTP(con
), "Content-Type: %s\r\n", type
) < 0)
2156 * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs.
2160 cupsdUpdateCGI(void)
2162 char *ptr
, /* Pointer to end of line in buffer */
2163 message
[1024]; /* Pointer to message text */
2164 int loglevel
; /* Log level for message */
2167 while ((ptr
= cupsdStatBufUpdate(CGIStatusBuffer
, &loglevel
,
2168 message
, sizeof(message
))) != NULL
)
2169 if (!strchr(CGIStatusBuffer
->buffer
, '\n'))
2172 if (ptr
== NULL
&& errno
)
2175 * Fatal error on pipe - should never happen!
2178 cupsdLogMessage(CUPSD_LOG_CRIT
,
2179 "cupsdUpdateCGI: error reading from CGI error pipe - %s",
2186 * 'cupsdWriteClient()' - Write data to a client as needed.
2189 int /* O - 1 if success, 0 if fail */
2190 cupsdWriteClient(cupsd_client_t
*con
) /* I - Client connection */
2192 int bytes
; /* Number of bytes written */
2193 char buf
[16385]; /* Data buffer */
2194 char *bufptr
; /* Pointer into buffer */
2195 ipp_state_t ipp_state
; /* IPP state value */
2199 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2200 "cupsdWriteClient(con=%p) %d response=%p, file=%d "
2201 "pipe_pid=%d state=%d",
2202 con
, con
->http
.fd
, con
->response
, con
->file
, con
->pipe_pid
,
2206 if (con
->http
.state
!= HTTP_GET_SEND
&&
2207 con
->http
.state
!= HTTP_POST_SEND
)
2210 if (con
->response
!= NULL
)
2212 ipp_state
= ippWrite(&(con
->http
), con
->response
);
2213 bytes
= ipp_state
!= IPP_ERROR
&& ipp_state
!= IPP_DATA
;
2215 else if ((bytes
= read(con
->file
, buf
, sizeof(buf
) - 1)) > 0)
2217 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2218 "cupsdWriteClient: Read %d bytes from file %d...",
2221 if (con
->pipe_pid
&& !con
->got_fields
)
2224 * Inspect the data for Content-Type and other fields.
2229 for (bufptr
= buf
; !con
->got_fields
&& *bufptr
; bufptr
++)
2230 if (*bufptr
== '\n')
2233 * Send line to client...
2236 if (bufptr
> buf
&& bufptr
[-1] == '\r')
2240 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "Script header: %s", buf
);
2242 if (!con
->sent_header
)
2245 * Handle redirection and CGI status codes...
2248 if (!strncasecmp(buf
, "Location:", 9))
2250 cupsdSendHeader(con
, HTTP_SEE_OTHER
, NULL
);
2251 if (httpPrintf(HTTP(con
), "Content-Length: 0\r\n") < 0)
2254 else if (!strncasecmp(buf
, "Status:", 7))
2255 cupsdSendError(con
, atoi(buf
+ 7));
2258 cupsdSendHeader(con
, HTTP_OK
, NULL
);
2260 if (con
->http
.version
== HTTP_1_1
)
2262 con
->http
.data_encoding
= HTTP_ENCODE_CHUNKED
;
2264 if (httpPrintf(HTTP(con
), "Transfer-Encoding: chunked\r\n") < 0)
2269 con
->sent_header
= 1;
2272 if (strncasecmp(buf
, "Status:", 7))
2273 httpPrintf(HTTP(con
), "%s\r\n", buf
);
2275 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "cupsdWriteClient: %d %s",
2282 bytes
-= (bufptr
- buf
);
2283 memmove(buf
, bufptr
, bytes
+ 1);
2287 * See if the line was empty...
2290 if (con
->field_col
== 0)
2291 con
->got_fields
= 1;
2295 else if (*bufptr
!= '\r')
2298 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2299 "cupsdWriteClient: %d bytes=%d, got_fields=%d",
2300 con
->http
.fd
, bytes
, con
->got_fields
);
2302 if (bytes
> 0 && !con
->got_fields
)
2305 * Remaining text needs to go out...
2308 httpPrintf(HTTP(con
), "%s", buf
);
2310 con
->http
.activity
= time(NULL
);
2313 else if (bytes
== 0)
2314 con
->http
.activity
= time(NULL
);
2319 if (httpWrite2(HTTP(con
), buf
, bytes
) < 0)
2321 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2322 "cupsdWriteClient: %d Write of %d bytes failed!",
2323 con
->http
.fd
, bytes
);
2325 cupsdCloseClient(con
);
2329 con
->bytes
+= bytes
;
2331 if (con
->http
.state
== HTTP_WAITING
)
2338 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "cupsdWriteClient: %d bytes < 0",
2341 cupsdLogRequest(con
, HTTP_OK
);
2343 httpFlushWrite(HTTP(con
));
2345 if (con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
)
2347 if (httpPrintf(HTTP(con
), "0\r\n\r\n") < 0)
2349 cupsdCloseClient(con
);
2354 con
->http
.state
= HTTP_WAITING
;
2356 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2357 "cupsdWriteClient: Removing fd %d from OutputSet...",
2360 FD_CLR(con
->http
.fd
, OutputSet
);
2364 if (FD_ISSET(con
->file
, InputSet
))
2366 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2367 "cupsdWriteClient: Removing fd %d from InputSet...",
2369 FD_CLR(con
->file
, InputSet
);
2373 cupsdEndProcess(con
->pipe_pid
, 0);
2375 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2376 "cupsdWriteClient: %d Closing data file %d.",
2377 con
->http
.fd
, con
->file
);
2386 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2387 "cupsdWriteClient: %d Removing temp file %s",
2388 con
->http
.fd
, con
->filename
);
2389 unlink(con
->filename
);
2390 cupsdClearString(&con
->filename
);
2393 if (con
->request
!= NULL
)
2395 ippDelete(con
->request
);
2396 con
->request
= NULL
;
2399 if (con
->response
!= NULL
)
2401 ippDelete(con
->response
);
2402 con
->response
= NULL
;
2405 cupsdClearString(&con
->command
);
2406 cupsdClearString(&con
->options
);
2408 if (!con
->http
.keep_alive
)
2410 cupsdCloseClient(con
);
2416 con
->file_ready
= 0;
2418 if (con
->pipe_pid
&& !FD_ISSET(con
->file
, InputSet
))
2420 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2421 "cupsdWriteClient: Adding fd %d to InputSet...",
2423 FD_SET(con
->file
, InputSet
);
2427 con
->http
.activity
= time(NULL
);
2434 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
2437 static int /* O - 1 if modified since */
2439 cupsd_client_t
*con
, /* I - Client connection */
2440 struct stat
*filestats
) /* I - File information */
2442 char *ptr
; /* Pointer into field */
2443 time_t date
; /* Time/date value */
2444 off_t size
; /* Size/length value */
2449 ptr
= con
->http
.fields
[HTTP_FIELD_IF_MODIFIED_SINCE
];
2454 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2455 "check_if_modified: %d If-Modified-Since=\"%s\"",
2458 while (*ptr
!= '\0')
2460 while (isspace(*ptr
) || *ptr
== ';')
2463 if (strncasecmp(ptr
, "length=", 7) == 0)
2466 size
= strtoll(ptr
, NULL
, 10);
2468 while (isdigit(*ptr
))
2471 else if (isalpha(*ptr
))
2473 date
= httpGetDateTime(ptr
);
2474 while (*ptr
!= '\0' && *ptr
!= ';')
2481 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2482 "check_if_modified: %d sizes=" CUPS_LLFMT
","
2483 CUPS_LLFMT
" dates=%d,%d",
2484 con
->http
.fd
, CUPS_LLCAST size
,
2485 CUPS_LLCAST filestats
->st_size
, (int)date
,
2486 (int)filestats
->st_mtime
);
2488 return ((size
!= filestats
->st_size
&& size
!= 0) ||
2489 (date
< filestats
->st_mtime
&& date
!= 0) ||
2490 (size
== 0 && date
== 0));
2496 * 'encrypt_client()' - Enable encryption for the client...
2499 static int /* O - 1 on success, 0 on error */
2500 encrypt_client(cupsd_client_t
*con
) /* I - Client to encrypt */
2503 SSL_CTX
*context
; /* Context for encryption */
2504 SSL
*conn
; /* Connection for encryption */
2505 unsigned long error
; /* Error code */
2509 * Create the SSL context and accept the connection...
2512 context
= SSL_CTX_new(SSLv23_server_method());
2514 SSL_CTX_set_options(context
, SSL_OP_NO_SSLv2
); /* Only use SSLv3 or TLS */
2515 SSL_CTX_use_PrivateKey_file(context
, ServerKey
, SSL_FILETYPE_PEM
);
2516 SSL_CTX_use_certificate_file(context
, ServerCertificate
, SSL_FILETYPE_PEM
);
2518 conn
= SSL_new(context
);
2520 SSL_set_fd(conn
, con
->http
.fd
);
2521 if (SSL_accept(conn
) != 1)
2523 cupsdLogMessage(CUPSD_LOG_ERROR
,
2524 "encrypt_client: Unable to encrypt connection from %s!",
2525 con
->http
.hostname
);
2527 while ((error
= ERR_get_error()) != 0)
2528 cupsdLogMessage(CUPSD_LOG_ERROR
, "encrypt_client: %s",
2529 ERR_error_string(error
, NULL
));
2531 SSL_CTX_free(context
);
2536 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2537 "encrypt_client: %d Connection from %s now encrypted.",
2538 con
->http
.fd
, con
->http
.hostname
);
2540 con
->http
.tls
= conn
;
2543 # elif defined(HAVE_GNUTLS)
2544 http_tls_t
*conn
; /* TLS session object */
2545 int error
; /* Error code */
2546 gnutls_certificate_server_credentials
*credentials
;
2547 /* TLS credentials */
2551 * Verify that we have a certificate...
2554 if (access(ServerKey
, 0) || access(ServerCertificate
, 0))
2557 * Nope, make a self-signed certificate...
2564 * Create the SSL object and perform the SSL handshake...
2567 conn
= (http_tls_t
*)malloc(sizeof(gnutls_session
));
2572 credentials
= (gnutls_certificate_server_credentials
*)
2573 malloc(sizeof(gnutls_certificate_server_credentials
));
2574 if (credentials
== NULL
)
2576 cupsdLogMessage(CUPSD_LOG_ERROR
,
2577 "encrypt_client: Unable to encrypt connection from %s!",
2578 con
->http
.hostname
);
2579 cupsdLogMessage(CUPSD_LOG_ERROR
, "encrypt_client: %s", strerror(errno
));
2585 gnutls_certificate_allocate_credentials(credentials
);
2586 gnutls_certificate_set_x509_key_file(*credentials
, ServerCertificate
,
2587 ServerKey
, GNUTLS_X509_FMT_PEM
);
2589 gnutls_init(&(conn
->session
), GNUTLS_SERVER
);
2590 gnutls_set_default_priority(conn
->session
);
2591 gnutls_credentials_set(conn
->session
, GNUTLS_CRD_CERTIFICATE
, *credentials
);
2592 gnutls_transport_set_ptr(conn
->session
,
2593 (gnutls_transport_ptr
)((long)con
->http
.fd
));
2595 error
= gnutls_handshake(conn
->session
);
2597 if (error
!= GNUTLS_E_SUCCESS
)
2599 cupsdLogMessage(CUPSD_LOG_ERROR
,
2600 "encrypt_client: Unable to encrypt connection from %s!",
2601 con
->http
.hostname
);
2602 cupsdLogMessage(CUPSD_LOG_ERROR
, "encrypt_client: %s",
2603 gnutls_strerror(error
));
2605 gnutls_deinit(conn
->session
);
2606 gnutls_certificate_free_credentials(*credentials
);
2612 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2613 "encrypt_client: %d Connection from %s now encrypted.",
2614 con
->http
.fd
, con
->http
.hostname
);
2616 conn
->credentials
= credentials
;
2617 con
->http
.tls
= conn
;
2620 # elif defined(HAVE_CDSASSL)
2621 OSStatus error
; /* Error info */
2622 SSLContextRef conn
; /* New connection */
2623 CFArrayRef certificatesArray
;
2624 /* Array containing certificates */
2625 int allowExpired
; /* Allow expired certificates? */
2626 int allowAnyRoot
; /* Allow any root certificate? */
2627 cdsa_conn_ref_t u
; /* Connection reference union */
2631 error
= SSLNewContext(true, &conn
);
2635 certificatesArray
= get_cdsa_server_certs();
2637 if (!certificatesArray
)
2639 cupsdLogMessage(CUPSD_LOG_ERROR
,
2640 "EncryptClient: Could not find signing key in keychain "
2641 "\"%s\"", ServerCertificate
);
2642 error
= errSSLBadCert
; /* errSSLBadConfiguration is a better choice, but not available on 10.2.x */
2646 error
= SSLSetIOFuncs(conn
, _httpReadCDSA
, _httpWriteCDSA
);
2649 error
= SSLSetProtocolVersion(conn
, kSSLProtocol3
);
2654 * Use a union to resolve warnings about int/pointer size mismatches...
2657 u
.connection
= NULL
;
2658 u
.sock
= con
->http
.fd
;
2659 error
= SSLSetConnection(conn
, u
.connection
);
2663 error
= SSLSetPeerDomainName(conn
, ServerName
, strlen(ServerName
) + 1);
2666 * Have to set these options before setting server certs...
2669 if (!error
&& allowExpired
)
2670 error
= SSLSetAllowsExpiredCerts(conn
, true);
2672 if (!error
&& allowAnyRoot
)
2673 error
= SSLSetAllowsAnyRoot(conn
, true);
2676 error
= SSLSetCertificate(conn
, certificatesArray
);
2678 if (certificatesArray
)
2680 CFRelease(certificatesArray
);
2681 certificatesArray
= NULL
;
2687 * Perform SSL/TLS handshake
2690 while ((error
= SSLHandshake(conn
)) == errSSLWouldBlock
)
2696 cupsdLogMessage(CUPSD_LOG_ERROR
,
2697 "encrypt_client: Unable to encrypt connection from %s!",
2698 con
->http
.hostname
);
2700 cupsdLogMessage(CUPSD_LOG_ERROR
,
2701 "encrypt_client: CDSA error code is %d", (int)error
);
2703 con
->http
.error
= error
;
2704 con
->http
.status
= HTTP_ERROR
;
2707 SSLDisposeContext(conn
);
2712 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2713 "encrypt_client: %d Connection from %s now encrypted.",
2714 con
->http
.fd
, con
->http
.hostname
);
2716 con
->http
.tls
= conn
;
2719 # endif /* HAVE_LIBSSL */
2721 #endif /* HAVE_SSL */
2726 * 'get_cdsa_server_certs()' - Convert a keychain name into the CFArrayRef
2727 * required by SSLSetCertificate.
2729 * For now we assumes that there is exactly one SecIdentity in the
2730 * keychain - i.e. there is exactly one matching cert/private key pair.
2731 * In the future we will search a keychain for a SecIdentity matching a
2732 * specific criteria. We also skip the operation of adding additional
2733 * non-signing certs from the keychain to the CFArrayRef.
2735 * To create a self-signed certificate for testing use the certtool.
2736 * Executing the following as root will do it:
2738 * certtool c k=/Library/Keychains/System.keychain
2741 static CFArrayRef
/* O - Array of certificates */
2742 get_cdsa_server_certs(void)
2744 OSStatus err
; /* Error info */
2745 SecKeychainRef kcRef
; /* Keychain reference */
2746 SecIdentitySearchRef srchRef
; /* Search reference */
2747 SecIdentityRef identity
; /* Identity */
2748 CFArrayRef ca
; /* Certificate array */
2755 err
= SecKeychainOpen(ServerCertificate
, &kcRef
);
2758 cupsdLogMessage(CUPSD_LOG_ERROR
, "Cannot open keychain \"%s\", error %d.",
2759 ServerCertificate
, (int)err
);
2763 * Search for "any" identity matching specified key use;
2764 * in this app, we expect there to be exactly one.
2767 err
= SecIdentitySearchCreate(kcRef
, CSSM_KEYUSE_SIGN
, &srchRef
);
2770 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2771 "Cannot find signing key in keychain \"%s\", error %d",
2772 ServerCertificate
, (int)err
);
2775 err
= SecIdentitySearchCopyNext(srchRef
, &identity
);
2778 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2779 "Cannot find signing key in keychain \"%s\", error %d",
2780 ServerCertificate
, (int)err
);
2783 if (CFGetTypeID(identity
) != SecIdentityGetTypeID())
2784 cupsdLogMessage(CUPSD_LOG_ERROR
,
2785 "SecIdentitySearchCopyNext CFTypeID failure!");
2789 * Found one. Place it in a CFArray.
2790 * TBD: snag other (non-identity) certs from keychain and add them
2794 ca
= CFArrayCreate(NULL
, (const void **)&identity
, 1, &kCFTypeArrayCallBacks
);
2797 cupsdLogMessage(CUPSD_LOG_ERROR
, "CFArrayCreate error");
2800 CFRelease(identity
);
2811 #endif /* HAVE_CDSASSL */
2815 * 'get_file()' - Get a filename and state info.
2818 static char * /* O - Real filename */
2819 get_file(cupsd_client_t
*con
, /* I - Client connection */
2820 struct stat
*filestats
, /* O - File information */
2821 char *filename
, /* IO - Filename buffer */
2822 int len
) /* I - Buffer length */
2824 int status
; /* Status of filesystem calls */
2825 char *ptr
; /* Pointer info filename */
2826 int plen
; /* Remaining length after pointer */
2830 * Need to add DocumentRoot global...
2833 if (!strncmp(con
->uri
, "/ppd/", 5))
2834 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
);
2835 else if (!strncmp(con
->uri
, "/admin/conf/", 12))
2836 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
+ 11);
2837 else if (!strncmp(con
->uri
, "/admin/log/", 11))
2839 if (!strcmp(con
->uri
+ 11, "access_log") && AccessLog
[0] == '/')
2840 strlcpy(filename
, AccessLog
, len
);
2841 else if (!strcmp(con
->uri
+ 11, "error_log") && ErrorLog
[0] == '/')
2842 strlcpy(filename
, ErrorLog
, len
);
2843 else if (!strcmp(con
->uri
+ 11, "page_log") && PageLog
[0] == '/')
2844 strlcpy(filename
, PageLog
, len
);
2848 else if (con
->language
)
2849 snprintf(filename
, len
, "%s/%s%s", DocumentRoot
, con
->language
->language
,
2852 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2854 if ((ptr
= strchr(filename
, '?')) != NULL
)
2858 * Grab the status for this language; if there isn't a language-specific file
2859 * then fallback to the default one...
2862 if ((status
= stat(filename
, filestats
)) != 0 && con
->language
&&
2863 strncmp(con
->uri
, "/ppd/", 5) &&
2864 strncmp(con
->uri
, "/admin/conf/", 12) &&
2865 strncmp(con
->uri
, "/admin/log/", 11))
2868 * Drop the country code...
2871 char ll
[3]; /* Short language name */
2874 strlcpy(ll
, con
->language
->language
, sizeof(ll
));
2875 snprintf(filename
, len
, "%s/%s%s", DocumentRoot
, ll
, con
->uri
);
2877 if ((ptr
= strchr(filename
, '?')) != NULL
)
2880 if ((status
= stat(filename
, filestats
)) != 0)
2883 * Drop the language prefix and try the root directory...
2886 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2888 if ((ptr
= strchr(filename
, '?')) != NULL
)
2891 status
= stat(filename
, filestats
);
2896 * If we're found a directory, get the index.html file instead...
2899 if (!status
&& S_ISDIR(filestats
->st_mode
))
2901 if (filename
[strlen(filename
) - 1] != '/')
2902 strlcat(filename
, "/", len
);
2904 ptr
= filename
+ strlen(filename
);
2905 plen
= len
- (ptr
- filename
);
2907 strlcpy(ptr
, "index.html", plen
);
2908 status
= stat(filename
, filestats
);
2913 strlcpy(ptr
, "index.class", plen
);
2914 status
= stat(filename
, filestats
);
2916 #endif /* HAVE_JAVA */
2921 strlcpy(ptr
, "index.pl", plen
);
2922 status
= stat(filename
, filestats
);
2924 #endif /* HAVE_PERL */
2929 strlcpy(ptr
, "index.php", plen
);
2930 status
= stat(filename
, filestats
);
2932 #endif /* HAVE_PHP */
2937 strlcpy(ptr
, "index.pyc", plen
);
2938 status
= stat(filename
, filestats
);
2943 strlcpy(ptr
, "index.py", plen
);
2944 status
= stat(filename
, filestats
);
2946 #endif /* HAVE_PYTHON */
2949 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "get_file: %d filename=%s size=%d",
2950 con
->http
.fd
, filename
,
2951 status
? -1 : (int)filestats
->st_size
);
2954 con
->http
.data_remaining
= (int)filestats
->st_size
;
2964 * 'install_conf_file()' - Install a configuration file.
2967 static http_status_t
/* O - Status */
2968 install_conf_file(cupsd_client_t
*con
) /* I - Connection */
2970 cups_file_t
*in
, /* Input file */
2971 *out
; /* Output file */
2972 char buffer
[1024]; /* Copy buffer */
2973 int bytes
; /* Number of bytes */
2974 char conffile
[1024], /* Configuration filename */
2975 newfile
[1024], /* New config filename */
2976 oldfile
[1024]; /* Old config filename */
2977 struct stat confinfo
; /* Config file info */
2981 * First construct the filenames...
2984 snprintf(conffile
, sizeof(conffile
), "%s%s", ServerRoot
, con
->uri
+ 11);
2985 snprintf(newfile
, sizeof(newfile
), "%s%s.N", ServerRoot
, con
->uri
+ 11);
2986 snprintf(oldfile
, sizeof(oldfile
), "%s%s.O", ServerRoot
, con
->uri
+ 11);
2988 cupsdLogMessage(CUPSD_LOG_INFO
, "Installing config file \"%s\"...", conffile
);
2991 * Get the owner, group, and permissions of the configuration file.
2992 * If it doesn't exist, assign it to the User and Group in the
2993 * cupsd.conf file with mode 0640 permissions.
2996 if (stat(conffile
, &confinfo
))
2998 confinfo
.st_uid
= User
;
2999 confinfo
.st_gid
= Group
;
3000 confinfo
.st_mode
= ConfigFilePerm
;
3004 * Open the request file and new config file...
3007 if ((in
= cupsFileOpen(con
->filename
, "rb")) == NULL
)
3009 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to open request file \"%s\" - %s",
3010 con
->filename
, strerror(errno
));
3011 return (HTTP_SERVER_ERROR
);
3014 if ((out
= cupsFileOpen(newfile
, "wb")) == NULL
)
3017 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to open config file \"%s\" - %s",
3018 newfile
, strerror(errno
));
3019 return (HTTP_SERVER_ERROR
);
3022 fchmod(cupsFileNumber(out
), confinfo
.st_mode
);
3023 fchown(cupsFileNumber(out
), confinfo
.st_uid
, confinfo
.st_gid
);
3026 * Copy from the request to the new config file...
3029 while ((bytes
= cupsFileRead(in
, buffer
, sizeof(buffer
))) > 0)
3030 if (cupsFileWrite(out
, buffer
, bytes
) < bytes
)
3032 cupsdLogMessage(CUPSD_LOG_ERROR
,
3033 "Unable to copy to config file \"%s\" - %s",
3034 newfile
, strerror(errno
));
3040 return (HTTP_SERVER_ERROR
);
3044 * Close the files...
3048 if (cupsFileClose(out
))
3050 cupsdLogMessage(CUPSD_LOG_ERROR
,
3051 "Error file closing config file \"%s\" - %s",
3052 newfile
, strerror(errno
));
3056 return (HTTP_SERVER_ERROR
);
3060 * Remove the request file...
3063 unlink(con
->filename
);
3064 cupsdClearString(&con
->filename
);
3067 * Unlink the old backup, rename the current config file to the backup
3068 * filename, and rename the new config file to the config file name...
3071 if (unlink(oldfile
))
3072 if (errno
!= ENOENT
)
3074 cupsdLogMessage(CUPSD_LOG_ERROR
,
3075 "Unable to remove backup config file \"%s\" - %s",
3076 oldfile
, strerror(errno
));
3080 return (HTTP_SERVER_ERROR
);
3083 if (rename(conffile
, oldfile
))
3084 if (errno
!= ENOENT
)
3086 cupsdLogMessage(CUPSD_LOG_ERROR
,
3087 "Unable to rename old config file \"%s\" - %s",
3088 conffile
, strerror(errno
));
3092 return (HTTP_SERVER_ERROR
);
3095 if (rename(newfile
, conffile
))
3097 cupsdLogMessage(CUPSD_LOG_ERROR
,
3098 "Unable to rename new config file \"%s\" - %s",
3099 newfile
, strerror(errno
));
3101 rename(oldfile
, conffile
);
3104 return (HTTP_SERVER_ERROR
);
3108 * If the cupsd.conf file was updated, set the NeedReload flag...
3111 if (!strcmp(con
->uri
, "/admin/conf/cupsd.conf"))
3112 NeedReload
= RELOAD_CUPSD
;
3114 NeedReload
= RELOAD_ALL
;
3116 ReloadTime
= time(NULL
);
3119 * Return that the file was created successfully...
3122 return (HTTP_CREATED
);
3127 * 'is_cgi()' - Is the resource a CGI script/program?
3130 static int /* O - 1 = CGI, 0 = file */
3131 is_cgi(cupsd_client_t
*con
, /* I - Client connection */
3132 const char *filename
, /* I - Real filename */
3133 struct stat
*filestats
, /* I - File information */
3134 mime_type_t
*type
) /* I - MIME type */
3136 const char *options
; /* Options on URL */
3139 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3140 "is_cgi(con=%p, filename=\"%s\", filestats=%p, type=%s/%s)\n",
3141 con
, filename
, filestats
, type
? type
->super
: "unknown",
3142 type
? type
->type
: "unknown");
3145 * Get the options, if any...
3148 if ((options
= strchr(con
->uri
, '?')) != NULL
)
3152 * Check for known types...
3155 if (!type
|| strcasecmp(type
->super
, "application"))
3157 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "is_cgi: Returning 0...");
3161 if (!strcasecmp(type
->type
, "x-httpd-cgi") &&
3162 (filestats
->st_mode
& 0111))
3165 * "application/x-httpd-cgi" is a CGI script.
3168 cupsdSetString(&con
->command
, filename
);
3170 filename
= strrchr(filename
, '/') + 1; /* Filename always absolute */
3172 cupsdSetString(&con
->options
, options
);
3174 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3175 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3176 con
->command
, con
->options
);
3181 else if (!strcasecmp(type
->type
, "x-httpd-java"))
3184 * "application/x-httpd-java" is a Java servlet.
3187 cupsdSetString(&con
->command
, CUPS_JAVA
);
3190 cupsdSetStringf(&con
->options
, "%s %s", filename
, options
);
3192 cupsdSetString(&con
->options
, filename
);
3194 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3195 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3196 con
->command
, con
->options
);
3200 #endif /* HAVE_JAVA */
3202 else if (!strcasecmp(type
->type
, "x-httpd-perl"))
3205 * "application/x-httpd-perl" is a Perl page.
3208 cupsdSetString(&con
->command
, CUPS_PERL
);
3211 cupsdSetStringf(&con
->options
, "%s %s", filename
, options
);
3213 cupsdSetString(&con
->options
, filename
);
3215 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3216 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3217 con
->command
, con
->options
);
3221 #endif /* HAVE_PERL */
3223 else if (!strcasecmp(type
->type
, "x-httpd-php"))
3226 * "application/x-httpd-php" is a PHP page.
3229 cupsdSetString(&con
->command
, CUPS_PHP
);
3232 cupsdSetStringf(&con
->options
, "%s %s", filename
, options
);
3234 cupsdSetString(&con
->options
, filename
);
3236 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3237 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3238 con
->command
, con
->options
);
3242 #endif /* HAVE_PHP */
3244 else if (!strcasecmp(type
->type
, "x-httpd-python"))
3247 * "application/x-httpd-python" is a Python page.
3250 cupsdSetString(&con
->command
, CUPS_PYTHON
);
3253 cupsdSetStringf(&con
->options
, "%s %s", filename
, options
);
3255 cupsdSetString(&con
->options
, filename
);
3257 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3258 "is_cgi: Returning 1 with command=\"%s\" and options=\"%s\"",
3259 con
->command
, con
->options
);
3263 #endif /* HAVE_PYTHON */
3265 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "is_cgi: Returning 0...");
3272 * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. "..").
3275 static int /* O - 0 if relative, 1 if absolute */
3276 is_path_absolute(const char *path
) /* I - Input path */
3279 * Check for a leading slash...
3286 * Check for "/.." in the path...
3289 while ((path
= strstr(path
, "/..")) != NULL
)
3291 if (!path
[3] || path
[3] == '/')
3298 * If we haven't found any relative paths, return 1 indicating an
3308 * 'make_certificate()' - Make a self-signed SSL/TLS certificate.
3312 make_certificate(void)
3314 gnutls_x509_crt crt
; /* Self-signed certificate */
3315 gnutls_x509_privkey key
; /* Encryption key */
3316 cups_lang_t
*language
; /* Default language info */
3317 cups_file_t
*fp
; /* Key/cert file */
3318 unsigned char buffer
[8192]; /* Buffer for x509 data */
3319 size_t bytes
; /* Number of bytes of data */
3320 unsigned char serial
[4]; /* Serial number buffer */
3321 time_t curtime
; /* Current time */
3322 int result
; /* Result of GNU TLS calls */
3326 * Create the encryption key...
3329 cupsdLogMessage(CUPSD_LOG_INFO
, "Generating server key...");
3331 gnutls_x509_privkey_init(&key
);
3332 gnutls_x509_privkey_generate(key
, GNUTLS_PK_RSA
, 2048, 0);
3338 bytes
= sizeof(buffer
);
3340 if ((result
= gnutls_x509_privkey_export(key
, GNUTLS_X509_FMT_PEM
,
3341 buffer
, &bytes
)) < 0)
3343 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to export server key - %s",
3344 gnutls_strerror(result
));
3345 gnutls_x509_privkey_deinit(key
);
3348 else if ((fp
= cupsFileOpen(ServerKey
, "w")) != NULL
)
3350 cupsFileWrite(fp
, (char *)buffer
, bytes
);
3353 cupsdLogMessage(CUPSD_LOG_INFO
, "Created server key file \"%s\"...",
3358 cupsdLogMessage(CUPSD_LOG_ERROR
,
3359 "Unable to create server key file \"%s\" - %s",
3360 ServerKey
, strerror(errno
));
3361 gnutls_x509_privkey_deinit(key
);
3366 * Create the self-signed certificate...
3369 cupsdLogMessage(CUPSD_LOG_INFO
, "Generating self-signed certificate...");
3371 language
= cupsLangDefault();
3372 curtime
= time(NULL
);
3373 serial
[0] = curtime
>> 24;
3374 serial
[1] = curtime
>> 16;
3375 serial
[2] = curtime
>> 8;
3376 serial
[3] = curtime
;
3378 gnutls_x509_crt_init(&crt
);
3379 if (strlen(language
->language
) == 5)
3380 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_COUNTRY_NAME
, 0,
3381 language
->language
+ 3, 2);
3383 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_COUNTRY_NAME
, 0,
3385 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_COMMON_NAME
, 0,
3386 ServerName
, strlen(ServerName
));
3387 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_ORGANIZATION_NAME
, 0,
3388 ServerName
, strlen(ServerName
));
3389 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME
,
3391 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME
, 0,
3393 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_LOCALITY_NAME
, 0,
3395 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_PKCS9_EMAIL
, 0,
3396 ServerAdmin
, strlen(ServerAdmin
));
3397 gnutls_x509_crt_set_key(crt
, key
);
3398 gnutls_x509_crt_set_serial(crt
, serial
, sizeof(serial
));
3399 gnutls_x509_crt_set_activation_time(crt
, curtime
);
3400 gnutls_x509_crt_set_expiration_time(crt
, curtime
+ 10 * 365 * 86400);
3401 gnutls_x509_crt_set_ca_status(crt
, 0);
3402 gnutls_x509_crt_set_subject_alternative_name(crt
, GNUTLS_SAN_DNSNAME
,
3404 gnutls_x509_crt_set_key_purpose_oid(crt
, GNUTLS_KP_TLS_WWW_SERVER
, 0);
3405 gnutls_x509_crt_set_key_usage(crt
, GNUTLS_KEY_KEY_ENCIPHERMENT
);
3406 gnutls_x509_crt_set_version(crt
, 3);
3408 bytes
= sizeof(buffer
);
3409 if (gnutls_x509_crt_get_key_id(crt
, 0, buffer
, &bytes
) >= 0)
3410 gnutls_x509_crt_set_subject_key_id(crt
, buffer
, bytes
);
3412 gnutls_x509_crt_sign(crt
, crt
, key
);
3418 bytes
= sizeof(buffer
);
3419 if ((result
= gnutls_x509_crt_export(crt
, GNUTLS_X509_FMT_PEM
,
3420 buffer
, &bytes
)) < 0)
3421 cupsdLogMessage(CUPSD_LOG_ERROR
,
3422 "Unable to export server certificate - %s",
3423 gnutls_strerror(result
));
3424 else if ((fp
= cupsFileOpen(ServerCertificate
, "w")) != NULL
)
3426 cupsFileWrite(fp
, (char *)buffer
, bytes
);
3429 cupsdLogMessage(CUPSD_LOG_INFO
,
3430 "Created 10-year server certificate file \"%s\"...",
3434 cupsdLogMessage(CUPSD_LOG_ERROR
,
3435 "Unable to create server certificate file \"%s\" - %s",
3436 ServerCertificate
, strerror(errno
));
3442 gnutls_x509_crt_deinit(crt
);
3443 gnutls_x509_privkey_deinit(key
);
3445 #endif /* HAVE_GNUTLS */
3449 * 'pipe_command()' - Pipe the output of a command to the remote client.
3452 static int /* O - Process ID */
3453 pipe_command(cupsd_client_t
*con
, /* I - Client connection */
3454 int infile
, /* I - Standard input for command */
3455 int *outfile
, /* O - Standard output for command */
3456 char *command
, /* I - Command to run */
3457 char *options
, /* I - Options for command */
3458 int root
) /* I - Run as root? */
3460 int i
; /* Looping var */
3461 int pid
; /* Process ID */
3462 char *commptr
, /* Command string pointer */
3463 commch
; /* Command string character */
3464 char *uriptr
; /* URI string pointer */
3465 int fds
[2]; /* Pipe FDs */
3466 int argc
; /* Number of arguments */
3467 int envc
; /* Number of environment variables */
3468 char argbuf
[10240], /* Argument buffer */
3469 *argv
[100], /* Argument strings */
3470 *envp
[MAX_ENV
+ 17]; /* Environment variables */
3471 char content_length
[1024], /* CONTENT_LENGTH environment variable */
3472 content_type
[1024], /* CONTENT_TYPE environment variable */
3473 http_cookie
[32768], /* HTTP_COOKIE environment variable */
3474 http_user_agent
[1024], /* HTTP_USER_AGENT environment variable */
3475 lang
[1024], /* LANG environment variable */
3476 path_info
[1024], /* PATH_INFO environment variable */
3477 *query_string
, /* QUERY_STRING env variable */
3478 remote_addr
[1024], /* REMOTE_ADDR environment variable */
3479 remote_host
[1024], /* REMOTE_HOST environment variable */
3480 remote_user
[1024], /* REMOTE_USER environment variable */
3481 script_name
[1024], /* SCRIPT_NAME environment variable */
3482 server_name
[1024], /* SERVER_NAME environment variable */
3483 server_port
[1024]; /* SERVER_PORT environment variable */
3487 * Parse a copy of the options string, which is of the form:
3489 * argument+argument+argument
3490 * ?argument+argument+argument
3491 * param=value¶m=value
3492 * ?param=value¶m=value
3493 * /name?argument+argument+argument
3494 * /name?param=value¶m=value
3496 * If the string contains an "=" character after the initial name,
3497 * then we treat it as a HTTP GET form request and make a copy of
3498 * the remaining string for the environment variable.
3500 * The string is always parsed out as command-line arguments, to
3501 * be consistent with Apache...
3504 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3505 "pipe_command: command=\"%s\", options=\"%s\"",
3509 query_string
= NULL
;
3512 strlcpy(argbuf
, options
, sizeof(argbuf
));
3516 if (argbuf
[0] == '/')
3519 * Found some trailing path information, set PATH_INFO...
3522 if ((commptr
= strchr(argbuf
, '?')) == NULL
)
3523 commptr
= argbuf
+ strlen(argbuf
);
3527 snprintf(path_info
, sizeof(path_info
), "PATH_INFO=%s", argbuf
);
3533 path_info
[0] = '\0';
3536 if (*commptr
== '?' && con
->operation
== HTTP_GET
)
3539 cupsdSetStringf(&query_string
, "QUERY_STRING=%s", commptr
);
3546 argv
[argc
++] = commptr
;
3548 for (; *commptr
&& argc
< 99; commptr
++)
3551 * Break arguments whenever we see a + or space...
3554 if (*commptr
== ' ' || *commptr
== '+')
3556 while (*commptr
== ' ' || *commptr
== '+')
3560 * If we don't have a blank string, save it as another argument...
3565 argv
[argc
] = commptr
;
3571 else if (*commptr
== '%' && isxdigit(commptr
[1] & 255) &&
3572 isxdigit(commptr
[2] & 255))
3575 * Convert the %xx notation to the individual character.
3578 if (commptr
[1] >= '0' && commptr
[1] <= '9')
3579 *commptr
= (commptr
[1] - '0') << 4;
3581 *commptr
= (tolower(commptr
[1]) - 'a' + 10) << 4;
3583 if (commptr
[2] >= '0' && commptr
[2] <= '9')
3584 *commptr
|= commptr
[2] - '0';
3586 *commptr
|= tolower(commptr
[2]) - 'a' + 10;
3588 _cups_strcpy(commptr
+ 1, commptr
+ 3);
3591 * Check for a %00 and break if that is the case...
3603 * Setup the environment variables as needed...
3607 snprintf(lang
, sizeof(lang
), "LANG=%s.UTF-8", con
->language
->language
);
3609 strcpy(lang
, "LANG=C");
3611 strcpy(remote_addr
, "REMOTE_ADDR=");
3612 httpAddrString(con
->http
.hostaddr
, remote_addr
+ 12,
3613 sizeof(remote_addr
) - 12);
3615 snprintf(remote_host
, sizeof(remote_host
), "REMOTE_HOST=%s",
3616 con
->http
.hostname
);
3618 snprintf(script_name
, sizeof(script_name
), "SCRIPT_NAME=%s", con
->uri
);
3619 if ((uriptr
= strchr(script_name
, '?')) != NULL
)
3622 sprintf(server_port
, "SERVER_PORT=%d", con
->serverport
);
3624 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s",
3627 envc
= cupsdLoadEnv(envp
, (int)(sizeof(envp
) / sizeof(envp
[0])));
3629 envp
[envc
++] = lang
;
3630 envp
[envc
++] = "REDIRECT_STATUS=1";
3631 envp
[envc
++] = server_name
;
3632 envp
[envc
++] = server_port
;
3633 envp
[envc
++] = remote_addr
;
3634 envp
[envc
++] = remote_host
;
3635 envp
[envc
++] = script_name
;
3638 envp
[envc
++] = path_info
;
3640 if (con
->username
[0])
3642 snprintf(remote_user
, sizeof(remote_user
), "REMOTE_USER=%s", con
->username
);
3644 envp
[envc
++] = remote_user
;
3647 if (con
->http
.version
== HTTP_1_1
)
3648 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.1";
3649 else if (con
->http
.version
== HTTP_1_0
)
3650 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.0";
3652 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/0.9";
3654 if (con
->http
.cookie
)
3656 snprintf(http_cookie
, sizeof(http_cookie
), "HTTP_COOKIE=%s",
3658 envp
[envc
++] = http_cookie
;
3661 if (con
->http
.fields
[HTTP_FIELD_USER_AGENT
][0])
3663 snprintf(http_user_agent
, sizeof(http_user_agent
), "HTTP_USER_AGENT=%s",
3664 con
->http
.fields
[HTTP_FIELD_USER_AGENT
]);
3665 envp
[envc
++] = http_user_agent
;
3668 if (con
->operation
== HTTP_GET
)
3670 for (i
= 0; i
< argc
; i
++)
3671 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "argv[%d] = \"%s\"", i
, argv
[i
]);
3673 envp
[envc
++] = "REQUEST_METHOD=GET";
3678 * Add GET form variables after ?...
3681 envp
[envc
++] = query_string
;
3686 sprintf(content_length
, "CONTENT_LENGTH=" CUPS_LLFMT
,
3687 CUPS_LLCAST con
->bytes
);
3688 snprintf(content_type
, sizeof(content_type
), "CONTENT_TYPE=%s",
3689 con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
3691 envp
[envc
++] = "REQUEST_METHOD=POST";
3692 envp
[envc
++] = content_length
;
3693 envp
[envc
++] = content_type
;
3697 * Tell the CGI if we are using encryption...
3700 if (con
->http
.encryption
== HTTP_ENCRYPT_ALWAYS
)
3701 envp
[envc
++] = "HTTPS=ON";
3704 * Terminate the environment array...
3709 if (LogLevel
== CUPSD_LOG_DEBUG2
)
3711 for (i
= 0; i
< argc
; i
++)
3712 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3713 "pipe_command: argv[%d] = \"%s\"", i
, argv
[i
]);
3714 for (i
= 0; i
< envc
; i
++)
3715 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3716 "pipe_command: envp[%d] = \"%s\"", i
, envp
[i
]);
3720 * Create a pipe for the output...
3723 if (cupsdOpenPipe(fds
))
3725 cupsdClearString(&query_string
);
3727 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to create pipes for CGI %s - %s",
3728 argv
[0], strerror(errno
));
3733 * Then execute the command...
3736 if (cupsdStartProcess(command
, argv
, envp
, infile
, fds
[1], CGIPipes
[1],
3737 -1, root
, &pid
) < 0)
3740 * Error - can't fork!
3743 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to fork for CGI %s - %s", argv
[0],
3746 cupsdClosePipe(fds
);
3752 * Fork successful - return the PID...
3755 if (con
->username
[0])
3756 cupsdAddCert(pid
, con
->username
);
3758 cupsdLogMessage(CUPSD_LOG_DEBUG
, "CGI %s started - PID = %d", command
, pid
);
3764 cupsdClearString(&query_string
);
3771 * 'send_file()' - Send a file via HTTP.
3774 static int /* O - 0 on failure, 1 on success */
3775 send_file(cupsd_client_t
*con
, /* I - Client connection */
3776 http_status_t code
, /* I - HTTP status */
3777 char *filename
, /* I - Filename */
3778 char *type
, /* I - File type */
3779 struct stat
*filestats
) /* O - File information */
3781 con
->file
= open(filename
, O_RDONLY
);
3783 cupsdLogMessage(CUPSD_LOG_DEBUG
, "send_file: %d file=%d", con
->http
.fd
,
3789 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
3793 if (!cupsdSendHeader(con
, code
, type
))
3796 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
3797 httpGetDateString(filestats
->st_mtime
)) < 0)
3799 if (httpPrintf(HTTP(con
), "Content-Length: " CUPS_LLFMT
"\r\n",
3800 CUPS_LLCAST filestats
->st_size
) < 0)
3802 if (httpPrintf(HTTP(con
), "\r\n") < 0)
3805 con
->http
.data_encoding
= HTTP_ENCODE_LENGTH
;
3806 con
->http
.data_remaining
= filestats
->st_size
;
3808 if (con
->http
.data_remaining
<= INT_MAX
)
3809 con
->http
._data_remaining
= con
->http
.data_remaining
;
3811 con
->http
._data_remaining
= INT_MAX
;
3813 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3814 "send_file: Adding fd %d to OutputSet...", con
->http
.fd
);
3816 FD_SET(con
->http
.fd
, OutputSet
);
3823 * End of "$Id: client.c 5373 2006-04-06 20:03:32Z mike $".