2 * "$Id: client.c 7950 2008-09-17 00:21:59Z mike $"
4 * Client routines for the Common UNIX Printing System (CUPS) scheduler.
6 * Copyright 2007-2009 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 * cupsdAcceptClient() - Accept a new client.
21 * cupsdCloseAllClients() - Close all remote clients immediately.
22 * cupsdCloseClient() - Close a remote client.
23 * cupsdFlushHeader() - Flush the header fields to the client.
24 * cupsdReadClient() - Read data from a client.
25 * cupsdSendCommand() - Send output from a command via HTTP.
26 * cupsdSendError() - Send an error message via HTTP.
27 * cupsdSendHeader() - Send an HTTP request.
28 * cupsdUpdateCGI() - Read status messages from CGI scripts and
30 * cupsdWriteClient() - Write data to a client as needed.
31 * check_if_modified() - Decode an "If-Modified-Since" line.
32 * compare_clients() - Compare two client connections.
33 * data_ready() - Check whether data is available from a client.
34 * encrypt_client() - Enable encryption for the client...
35 * get_cdsa_certificate() - Get a SSL/TLS certificate from the System
37 * get_file() - Get a filename and state info.
38 * install_conf_file() - Install a configuration file.
39 * is_cgi() - Is the resource a CGI script/program?
40 * is_path_absolute() - Is a path absolute and free of relative elements
42 * make_certificate() - Make a self-signed SSL/TLS certificate.
43 * pipe_command() - Pipe the output of a command to the remote client.
44 * valid_host() - Is the Host: field valid?
45 * write_file() - Send a file via HTTP.
46 * write_pipe() - Flag that data is available on the CGI pipe.
50 * Include necessary headers...
56 # include <Security/Security.h>
57 # ifdef HAVE_SECIDENTITYSEARCHPRIV_H
58 # include <Security/SecIdentitySearchPriv.h>
59 # else /* Declare prototype for function in that header... */
60 extern OSStatus
SecIdentitySearchCreateWithPolicy(SecPolicyRef policy
,
61 CFStringRef idString
, CSSM_KEYUSE keyUsage
,
62 CFTypeRef keychainOrArray
,
63 Boolean returnOnlyValidIdentities
,
64 SecIdentitySearchRef
* searchRef
);
65 # endif /* HAVE_SECIDENTITYSEARCHPRIV_H */
66 # ifdef HAVE_SECPOLICYPRIV_H
67 # include <Security/SecPolicyPriv.h>
68 # else /* Declare prototype for function in that header... */
69 extern OSStatus
SecPolicySetValue(SecPolicyRef policyRef
,
70 const CSSM_DATA
*value
);
71 # endif /* HAVE_SECPOLICYPRIV_H */
72 # ifdef HAVE_SECBASEPRIV_H
73 # include <Security/SecBasePriv.h>
74 # else /* Declare prototype for function in that header... */
75 extern const char *cssmErrorString(int error
);
76 # endif /* HAVE_SECBASEPRIV_H */
77 #endif /* HAVE_CDSASSL */
80 # include <gnutls/x509.h>
81 #endif /* HAVE_GNUTLS */
85 #endif /* HAVE_TCPD_H */
92 static int check_if_modified(cupsd_client_t
*con
,
93 struct stat
*filestats
);
94 static int compare_clients(cupsd_client_t
*a
, cupsd_client_t
*b
,
96 static int data_ready(cupsd_client_t
*con
);
98 static int encrypt_client(cupsd_client_t
*con
);
101 static CFArrayRef
get_cdsa_certificate(cupsd_client_t
*con
);
102 #endif /* HAVE_CDSASSL */
103 static char *get_file(cupsd_client_t
*con
, struct stat
*filestats
,
104 char *filename
, int len
);
105 static http_status_t
install_conf_file(cupsd_client_t
*con
);
106 static int is_cgi(cupsd_client_t
*con
, const char *filename
,
107 struct stat
*filestats
, mime_type_t
*type
);
108 static int is_path_absolute(const char *path
);
110 static int make_certificate(cupsd_client_t
*con
);
111 #endif /* HAVE_SSL */
112 static int pipe_command(cupsd_client_t
*con
, int infile
, int *outfile
,
113 char *command
, char *options
, int root
);
114 static int valid_host(cupsd_client_t
*con
);
115 static int write_file(cupsd_client_t
*con
, http_status_t code
,
116 char *filename
, char *type
,
117 struct stat
*filestats
);
118 static void write_pipe(cupsd_client_t
*con
);
122 * 'cupsdAcceptClient()' - Accept a new client.
126 cupsdAcceptClient(cupsd_listener_t
*lis
)/* I - Listener socket */
128 int count
; /* Count of connections on a host */
129 int val
; /* Parameter value */
130 cupsd_client_t
*con
, /* New client pointer */
131 *tempcon
; /* Temporary client pointer */
132 http_addrlist_t
*addrlist
, /* List of adddresses for host */
133 *addr
; /* Current address */
134 socklen_t addrlen
; /* Length of address */
135 char *hostname
; /* Hostname for address */
136 http_addr_t temp
; /* Temporary address variable */
137 static time_t last_dos
= 0; /* Time of last DoS attack */
139 struct request_info wrap_req
; /* TCP wrappers request information */
140 #endif /* HAVE_TCPD_H */
143 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
144 "cupsdAcceptClient(lis=%p(%d)) Clients=%d",
145 lis
, lis
->fd
, cupsArrayCount(Clients
));
148 * Make sure we don't have a full set of clients already...
151 if (cupsArrayCount(Clients
) == MaxClients
)
155 * Get a pointer to the next available client...
159 Clients
= cupsArrayNew(NULL
, NULL
);
163 cupsdLogMessage(CUPSD_LOG_ERROR
,
164 "Unable to allocate memory for clients array!");
165 cupsdPauseListening();
170 ActiveClients
= cupsArrayNew((cups_array_func_t
)compare_clients
, NULL
);
174 cupsdLogMessage(CUPSD_LOG_ERROR
,
175 "Unable to allocate memory for active clients array!");
176 cupsdPauseListening();
180 if ((con
= calloc(1, sizeof(cupsd_client_t
))) == NULL
)
182 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to allocate memory for client!");
183 cupsdPauseListening();
187 con
->http
.activity
= time(NULL
);
189 con
->http
.hostaddr
= &(con
->clientaddr
);
192 * Accept the client and get the remote address...
195 addrlen
= sizeof(http_addr_t
);
197 if ((con
->http
.fd
= accept(lis
->fd
, (struct sockaddr
*)con
->http
.hostaddr
,
200 if (errno
== ENFILE
|| errno
== EMFILE
)
201 cupsdPauseListening();
203 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to accept client connection - %s.",
211 if (lis
->address
.addr
.sa_family
== AF_INET6
)
214 * Save the connected port number...
217 con
->http
.hostaddr
->ipv6
.sin6_port
= lis
->address
.ipv6
.sin6_port
;
220 * Convert IPv4 over IPv6 addresses (::ffff:n.n.n.n) to IPv4 forms we
221 * can more easily use...
224 if (con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[0] == 0 &&
225 con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[1] == 0 &&
226 ntohl(con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[2]) == 0xffff)
227 con
->http
.hostaddr
->ipv6
.sin6_addr
.s6_addr32
[2] = 0;
230 #endif /* AF_INET6 */
231 if (lis
->address
.addr
.sa_family
== AF_INET
)
232 con
->http
.hostaddr
->ipv4
.sin_port
= lis
->address
.ipv4
.sin_port
;
235 * Check the number of clients on the same address...
238 for (count
= 0, tempcon
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
240 tempcon
= (cupsd_client_t
*)cupsArrayNext(Clients
))
241 if (httpAddrEqual(tempcon
->http
.hostaddr
, con
->http
.hostaddr
))
244 if (count
>= MaxClientsPerHost
)
248 if (count
>= MaxClientsPerHost
)
250 if ((time(NULL
) - last_dos
) >= 60)
252 last_dos
= time(NULL
);
253 cupsdLogMessage(CUPSD_LOG_WARN
,
254 "Possible DoS attack - more than %d clients connecting "
257 httpAddrString(con
->http
.hostaddr
, con
->http
.hostname
,
258 sizeof(con
->http
.hostname
)));
262 closesocket(con
->http
.fd
);
272 * Get the hostname or format the IP address as needed...
275 if (httpAddrLocalhost(con
->http
.hostaddr
))
278 * Map accesses from the loopback interface to "localhost"...
281 strlcpy(con
->http
.hostname
, "localhost", sizeof(con
->http
.hostname
));
282 hostname
= con
->http
.hostname
;
287 * Map accesses from the same host to the server name.
291 hostname
= httpAddrLookup(con
->http
.hostaddr
, con
->http
.hostname
,
292 sizeof(con
->http
.hostname
));
296 httpAddrString(con
->http
.hostaddr
, con
->http
.hostname
,
297 sizeof(con
->http
.hostname
));
301 if (hostname
== NULL
&& HostNameLookups
== 2)
304 * Can't have an unresolved IP address with double-lookups enabled...
308 closesocket(con
->http
.fd
);
313 cupsdLogMessage(CUPSD_LOG_WARN
,
314 "Name lookup failed - connection from %s closed!",
321 if (HostNameLookups
== 2)
324 * Do double lookups as needed...
327 if ((addrlist
= httpAddrGetList(con
->http
.hostname
, AF_UNSPEC
, NULL
))
331 * See if the hostname maps to the same IP address...
334 for (addr
= addrlist
; addr
; addr
= addr
->next
)
335 if (httpAddrEqual(con
->http
.hostaddr
, &(addr
->addr
)))
341 httpAddrFreeList(addrlist
);
346 * Can't have a hostname that doesn't resolve to the same IP address
347 * with double-lookups enabled...
351 closesocket(con
->http
.fd
);
356 cupsdLogMessage(CUPSD_LOG_WARN
,
357 "IP lookup failed - connection from %s closed!",
366 * See if the connection is denied by TCP wrappers...
369 request_init(&wrap_req
, RQ_DAEMON
, "cupsd", RQ_FILE
, con
->http
.fd
, NULL
);
372 if (!hosts_access(&wrap_req
))
375 closesocket(con
->http
.fd
);
380 cupsdLogMessage(CUPSD_LOG_WARN
,
381 "Connection from %s refused by /etc/hosts.allow and "
382 "/etc/hosts.deny rules.", con
->http
.hostname
);
386 #endif /* HAVE_TCPD_H */
389 if (con
->http
.hostaddr
->addr
.sa_family
== AF_INET6
)
390 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdAcceptClient: %d from %s:%d (IPv6)",
391 con
->http
.fd
, con
->http
.hostname
,
392 ntohs(con
->http
.hostaddr
->ipv6
.sin6_port
));
394 #endif /* AF_INET6 */
396 if (con
->http
.hostaddr
->addr
.sa_family
== AF_LOCAL
)
397 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdAcceptClient: %d from %s (Domain)",
398 con
->http
.fd
, con
->http
.hostname
);
400 #endif /* AF_LOCAL */
401 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdAcceptClient: %d from %s:%d (IPv4)",
402 con
->http
.fd
, con
->http
.hostname
,
403 ntohs(con
->http
.hostaddr
->ipv4
.sin_port
));
406 * Get the local address the client connected to...
409 addrlen
= sizeof(temp
);
410 if (getsockname(con
->http
.fd
, (struct sockaddr
*)&temp
, &addrlen
))
412 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to get local address - %s",
415 strcpy(con
->servername
, "localhost");
416 con
->serverport
= LocalPort
;
421 if (temp
.addr
.sa_family
== AF_INET6
)
423 if (httpAddrLocalhost(&temp
))
424 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
425 else if (HostNameLookups
|| RemotePort
)
426 httpAddrLookup(&temp
, con
->servername
, sizeof(con
->servername
));
428 httpAddrString(&temp
, con
->servername
, sizeof(con
->servername
));
430 con
->serverport
= ntohs(lis
->address
.ipv6
.sin6_port
);
433 #endif /* AF_INET6 */
434 if (temp
.addr
.sa_family
== AF_INET
)
436 if (httpAddrLocalhost(&temp
))
437 strlcpy(con
->servername
, "localhost", sizeof(con
->servername
));
438 else if (HostNameLookups
|| RemotePort
)
439 httpAddrLookup(&temp
, con
->servername
, sizeof(con
->servername
));
441 httpAddrString(&temp
, con
->servername
, sizeof(con
->servername
));
443 con
->serverport
= ntohs(lis
->address
.ipv4
.sin_port
);
447 strcpy(con
->servername
, "localhost");
448 con
->serverport
= LocalPort
;
452 cupsArrayAdd(Clients
, con
);
455 * Using TCP_NODELAY improves responsiveness, especially on systems with a slow
456 * loopback interface. Since we write large buffers when sending print files
457 * and requests there shouldn't be any performance penalty for this...
461 setsockopt(con
->http
.fd
, IPPROTO_TCP
, TCP_NODELAY
, &val
, sizeof(val
));
464 * Close this file on all execs...
467 fcntl(con
->http
.fd
, F_SETFD
, fcntl(con
->http
.fd
, F_GETFD
) | FD_CLOEXEC
);
470 * Add the socket to the server select.
473 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
, NULL
, con
);
476 * Temporarily suspend accept()'s until we lose a client...
479 if (cupsArrayCount(Clients
) == MaxClients
)
480 cupsdPauseListening();
484 * See if we are connecting on a secure port...
487 if (lis
->encryption
== HTTP_ENCRYPT_ALWAYS
)
490 * https connection; go secure...
493 con
->http
.encryption
= HTTP_ENCRYPT_ALWAYS
;
495 if (!encrypt_client(con
))
496 cupsdCloseClient(con
);
500 #endif /* HAVE_SSL */
505 * 'cupsdCloseAllClients()' - Close all remote clients immediately.
509 cupsdCloseAllClients(void)
511 cupsd_client_t
*con
; /* Current client */
514 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "cupsdCloseAllClients() Clients=%d",
515 cupsArrayCount(Clients
));
517 for (con
= (cupsd_client_t
*)cupsArrayFirst(Clients
);
519 con
= (cupsd_client_t
*)cupsArrayNext(Clients
))
520 if (cupsdCloseClient(con
))
521 cupsdCloseClient(con
);
526 * 'cupsdCloseClient()' - Close a remote client.
529 int /* O - 1 if partial close, 0 if fully closed */
530 cupsdCloseClient(cupsd_client_t
*con
) /* I - Client to close */
532 int partial
; /* Do partial close for SSL? */
534 SSL_CTX
*context
; /* Context for encryption */
535 SSL
*conn
; /* Connection for encryption */
536 unsigned long error
; /* Error code */
537 #elif defined(HAVE_GNUTLS)
538 http_tls_t
*conn
; /* TLS connection information */
539 int error
; /* Error code */
540 gnutls_certificate_server_credentials
*credentials
;
541 /* TLS credentials */
542 # elif defined(HAVE_CDSASSL)
543 http_tls_t
*conn
; /* CDSA connection information */
544 #endif /* HAVE_LIBSSL */
547 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdCloseClient: %d", con
->http
.fd
);
550 * Flush pending writes before closing...
553 httpFlushWrite(HTTP(con
));
559 * Shutdown encryption as needed...
567 conn
= (SSL
*)(con
->http
.tls
);
568 context
= SSL_get_SSL_CTX(conn
);
570 switch (SSL_shutdown(conn
))
573 cupsdLogMessage(CUPSD_LOG_DEBUG
,
574 "SSL shutdown successful!");
577 cupsdLogMessage(CUPSD_LOG_ERROR
,
578 "Fatal error during SSL shutdown!");
580 while ((error
= ERR_get_error()) != 0)
581 cupsdLogMessage(CUPSD_LOG_ERROR
, "SSL shutdown failed: %s",
582 ERR_error_string(error
, NULL
));
586 SSL_CTX_free(context
);
589 # elif defined(HAVE_GNUTLS)
590 conn
= (http_tls_t
*)(con
->http
.tls
);
591 credentials
= (gnutls_certificate_server_credentials
*)(conn
->credentials
);
593 error
= gnutls_bye(conn
->session
, GNUTLS_SHUT_WR
);
596 case GNUTLS_E_SUCCESS
:
597 cupsdLogMessage(CUPSD_LOG_DEBUG
,
598 "SSL shutdown successful!");
601 cupsdLogMessage(CUPSD_LOG_ERROR
,
602 "SSL shutdown failed: %s", gnutls_strerror(error
));
606 gnutls_deinit(conn
->session
);
607 gnutls_certificate_free_credentials(*credentials
);
611 # elif defined(HAVE_CDSASSL)
612 conn
= (http_tls_t
*)(con
->http
.tls
);
614 while (SSLClose(conn
->session
) == errSSLWouldBlock
)
617 SSLDisposeContext(conn
->session
);
619 if (conn
->certsArray
)
620 CFRelease(conn
->certsArray
);
623 # endif /* HAVE_LIBSSL */
625 con
->http
.tls
= NULL
;
627 #endif /* HAVE_SSL */
629 if (con
->pipe_pid
!= 0)
632 * Stop any CGI process...
635 cupsdEndProcess(con
->pipe_pid
, 1);
641 cupsdRemoveSelect(con
->file
);
648 * Close the socket and clear the file from the input set for select()...
651 if (con
->http
.fd
>= 0)
653 cupsArrayRemove(ActiveClients
, con
);
659 * Only do a partial close so that the encrypted client gets everything.
662 shutdown(con
->http
.fd
, 0);
663 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
, NULL
, con
);
668 * Shut the socket down fully...
671 cupsdRemoveSelect(con
->http
.fd
);
683 if (con
->http
.input_set
)
684 free(con
->http
.input_set
);
686 httpClearCookie(HTTP(con
));
687 httpClearFields(HTTP(con
));
689 cupsdClearString(&con
->filename
);
690 cupsdClearString(&con
->command
);
691 cupsdClearString(&con
->options
);
692 cupsdClearString(&con
->query_string
);
696 ippDelete(con
->request
);
702 ippDelete(con
->response
);
703 con
->response
= NULL
;
708 cupsLangFree(con
->language
);
709 con
->language
= NULL
;
712 #ifdef HAVE_AUTHORIZATION_H
715 AuthorizationFree(con
->authref
, kAuthorizationFlagDefaults
);
718 #endif /* HAVE_AUTHORIZATION_H */
721 * Re-enable new client connections if we are going back under the
725 if (cupsArrayCount(Clients
) == MaxClients
)
726 cupsdResumeListening();
729 * Compact the list of clients as necessary...
732 cupsArrayRemove(Clients
, con
);
742 * 'cupsdFlushHeader()' - Flush the header fields to the client.
745 int /* I - Bytes written or -1 on error */
746 cupsdFlushHeader(cupsd_client_t
*con
) /* I - Client to flush to */
748 int bytes
= httpFlushWrite(HTTP(con
));
750 con
->http
.data_encoding
= HTTP_ENCODE_LENGTH
;
757 * 'cupsdReadClient()' - Read data from a client.
761 cupsdReadClient(cupsd_client_t
*con
) /* I - Client to read from */
763 char line
[32768], /* Line from client... */
764 operation
[64], /* Operation code from socket */
765 version
[64], /* HTTP version number string */
766 locale
[64], /* Locale */
767 *ptr
; /* Pointer into strings */
768 int major
, minor
; /* HTTP version numbers */
769 http_status_t status
; /* Transfer status */
770 ipp_state_t ipp_state
; /* State of IPP transfer */
771 int bytes
; /* Number of bytes to POST */
772 char *filename
; /* Name of file for GET/HEAD */
773 char buf
[1024]; /* Buffer for real filename */
774 struct stat filestats
; /* File information */
775 mime_type_t
*type
; /* MIME type of file */
776 cupsd_printer_t
*p
; /* Printer */
777 static unsigned request_id
= 0; /* Request ID for temp files */
780 status
= HTTP_CONTINUE
;
782 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
783 "cupsdReadClient(con=%p(%d)) "
784 "con->http.error=%d "
785 "con->http.used=%d, "
786 "con->http.state=%d "
787 "con->data_encoding=HTTP_ENCODE_%s, "
788 "con->data_remaining=" CUPS_LLFMT
", "
790 con
, con
->http
.fd
, con
->http
.error
, con
->http
.used
,
792 con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
?
793 "CHUNKED" : "LENGTH",
794 CUPS_LLCAST con
->http
.data_remaining
, con
->file
);
800 * Automatically check for a SSL/TLS handshake...
805 if (recv(con
->http
.fd
, buf
, 1, MSG_PEEK
) == 1 &&
806 (!buf
[0] || !strchr("DGHOPT", buf
[0])))
809 * Encrypt this connection...
812 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
813 "cupsdReadClient: Saw first byte %02X, auto-negotiating "
814 "SSL/TLS session...", buf
[0] & 255);
816 if (!encrypt_client(con
))
817 cupsdCloseClient(con
);
822 #endif /* HAVE_SSL */
824 switch (con
->http
.state
)
828 * See if we've received a request line...
831 if (httpGets(line
, sizeof(line
) - 1, HTTP(con
)) == NULL
)
833 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
834 cupsdLogMessage(CUPSD_LOG_DEBUG
,
835 "cupsdReadClient: %d WAITING Closing for error %d "
836 "(%s)", con
->http
.fd
, con
->http
.error
,
837 strerror(con
->http
.error
));
839 cupsdLogMessage(CUPSD_LOG_DEBUG
,
840 "cupsdReadClient: %d WAITING Closing on EOF",
843 cupsdCloseClient(con
);
848 * Ignore blank request lines...
855 * Clear other state variables...
858 httpClearFields(HTTP(con
));
860 con
->http
.activity
= time(NULL
);
861 con
->http
.version
= HTTP_1_0
;
862 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
863 con
->http
.data_encoding
= HTTP_ENCODE_LENGTH
;
864 con
->http
.data_remaining
= 0;
865 con
->http
._data_remaining
= 0;
866 con
->operation
= HTTP_WAITING
;
871 con
->username
[0] = '\0';
872 con
->password
[0] = '\0';
875 cupsdClearString(&con
->command
);
876 cupsdClearString(&con
->options
);
877 cupsdClearString(&con
->query_string
);
881 ippDelete(con
->request
);
887 ippDelete(con
->response
);
888 con
->response
= NULL
;
893 cupsLangFree(con
->language
);
894 con
->language
= NULL
;
902 OM_uint32 minor_status
;
903 gss_release_cred(&minor_status
, &con
->gss_creds
);
905 #endif /* HAVE_GSSAPI */
908 * Grab the request line...
911 switch (sscanf(line
, "%63s%1023s%63s", operation
, con
->uri
, version
))
916 cupsdLogMessage(CUPSD_LOG_ERROR
,
917 "Bad request line \"%s\" from %s!", line
,
919 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
920 cupsdCloseClient(con
);
924 con
->http
.version
= HTTP_0_9
;
927 if (sscanf(version
, "HTTP/%d.%d", &major
, &minor
) != 2)
929 cupsdLogMessage(CUPSD_LOG_ERROR
,
930 "Bad request line \"%s\" from %s!", line
,
932 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
933 cupsdCloseClient(con
);
939 con
->http
.version
= (http_version_t
)(major
* 100 + minor
);
940 if (con
->http
.version
== HTTP_1_1
&& KeepAlive
)
941 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
943 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
947 cupsdLogMessage(CUPSD_LOG_ERROR
,
948 "Unsupported request line \"%s\" from %s!",
949 line
, con
->http
.hostname
);
950 cupsdSendError(con
, HTTP_NOT_SUPPORTED
, CUPSD_AUTH_NONE
);
951 cupsdCloseClient(con
);
958 * Handle full URLs in the request line...
961 if (strcmp(con
->uri
, "*"))
963 char scheme
[HTTP_MAX_URI
], /* Method/scheme */
964 userpass
[HTTP_MAX_URI
], /* Username:password */
965 hostname
[HTTP_MAX_URI
], /* Hostname */
966 resource
[HTTP_MAX_URI
]; /* Resource path */
967 int port
; /* Port number */
971 * Separate the URI into its components...
974 httpSeparateURI(HTTP_URI_CODING_MOST
, con
->uri
,
975 scheme
, sizeof(scheme
),
976 userpass
, sizeof(userpass
),
977 hostname
, sizeof(hostname
), &port
,
978 resource
, sizeof(resource
));
981 * Only allow URIs with the servername, localhost, or an IP
985 if (strcmp(scheme
, "file") &&
986 strcasecmp(hostname
, ServerName
) &&
987 strcasecmp(hostname
, "localhost") &&
988 !isdigit(hostname
[0]) && hostname
[0] != '[')
991 * Nope, we don't do proxies...
994 cupsdLogMessage(CUPSD_LOG_ERROR
, "Bad URI \"%s\" in request!",
996 cupsdSendError(con
, HTTP_METHOD_NOT_ALLOWED
, CUPSD_AUTH_NONE
);
997 cupsdCloseClient(con
);
1002 * Copy the resource portion back into the URI; both resource and
1003 * con->uri are HTTP_MAX_URI bytes in size...
1006 strcpy(con
->uri
, resource
);
1010 * Process the request...
1013 if (!strcmp(operation
, "GET"))
1014 con
->http
.state
= HTTP_GET
;
1015 else if (!strcmp(operation
, "PUT"))
1016 con
->http
.state
= HTTP_PUT
;
1017 else if (!strcmp(operation
, "POST"))
1018 con
->http
.state
= HTTP_POST
;
1019 else if (!strcmp(operation
, "DELETE"))
1020 con
->http
.state
= HTTP_DELETE
;
1021 else if (!strcmp(operation
, "TRACE"))
1022 con
->http
.state
= HTTP_TRACE
;
1023 else if (!strcmp(operation
, "OPTIONS"))
1024 con
->http
.state
= HTTP_OPTIONS
;
1025 else if (!strcmp(operation
, "HEAD"))
1026 con
->http
.state
= HTTP_HEAD
;
1029 cupsdLogMessage(CUPSD_LOG_ERROR
, "Bad operation \"%s\"!", operation
);
1030 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
1031 cupsdCloseClient(con
);
1035 gettimeofday(&(con
->start
), NULL
);
1036 con
->operation
= con
->http
.state
;
1038 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdReadClient: %d %s %s HTTP/%d.%d",
1039 con
->http
.fd
, operation
, con
->uri
,
1040 con
->http
.version
/ 100, con
->http
.version
% 100);
1042 con
->http
.status
= HTTP_OK
;
1044 if (!cupsArrayFind(ActiveClients
, con
))
1046 cupsArrayAdd(ActiveClients
, con
);
1047 cupsdSetBusyState();
1058 * Parse incoming parameters until the status changes...
1061 while ((status
= httpUpdate(HTTP(con
))) == HTTP_CONTINUE
)
1062 if (!data_ready(con
))
1065 if (status
!= HTTP_OK
&& status
!= HTTP_CONTINUE
)
1067 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
1068 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1069 "cupsdReadClient: %d FIELDS Closing for error %d "
1070 "(%s)", con
->http
.fd
, con
->http
.error
,
1071 strerror(con
->http
.error
));
1073 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1074 "cupsdReadClient: %d FIELDS Closing on EOF",
1077 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
1078 cupsdCloseClient(con
);
1084 if (!data_ready(con
) && recv(con
->http
.fd
, buf
, 1, MSG_PEEK
) < 1)
1087 * Connection closed...
1090 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1091 "cupsdReadClient: %d Closing on EOF", con
->http
.fd
);
1092 cupsdCloseClient(con
);
1095 break; /* Anti-compiler-warning-code */
1099 * Handle new transfers...
1102 if (status
== HTTP_OK
)
1104 if (con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
][0])
1107 * Figure out the locale from the Accept-Language and Content-Type
1111 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
],
1115 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
],
1119 if ((ptr
= strstr(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
],
1120 "charset=")) != NULL
)
1123 * Combine language and charset, and trim any extra params in the
1127 snprintf(locale
, sizeof(locale
), "%s.%s",
1128 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ptr
+ 8);
1130 if ((ptr
= strchr(locale
, ',')) != NULL
)
1134 snprintf(locale
, sizeof(locale
), "%s.%s",
1135 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], DefaultCharset
);
1137 con
->language
= cupsLangGet(locale
);
1140 con
->language
= cupsLangGet(DefaultLocale
);
1142 cupsdAuthorize(con
);
1144 if (!strncasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Keep-Alive",
1146 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
1147 else if (!strncasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "close", 5))
1148 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1150 if (!con
->http
.fields
[HTTP_FIELD_HOST
][0] &&
1151 con
->http
.version
>= HTTP_1_1
)
1154 * HTTP/1.1 and higher require the "Host:" field...
1157 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1159 cupsdLogMessage(CUPSD_LOG_ERROR
, "Missing Host: field in request!");
1160 cupsdCloseClient(con
);
1164 else if (!valid_host(con
))
1167 * Access to localhost must use "localhost" or the corresponding IPv4
1168 * or IPv6 values in the Host: field.
1171 cupsdLogMessage(CUPSD_LOG_ERROR
,
1172 "Request from \"%s\" using invalid Host: field \"%s\"",
1173 con
->http
.hostname
, con
->http
.fields
[HTTP_FIELD_HOST
]);
1175 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1177 cupsdCloseClient(con
);
1181 else if (con
->operation
== HTTP_OPTIONS
)
1184 * Do OPTIONS command...
1187 if (con
->best
&& con
->best
->type
!= CUPSD_AUTH_NONE
)
1189 if (!cupsdSendHeader(con
, HTTP_UNAUTHORIZED
, NULL
, CUPSD_AUTH_NONE
))
1191 cupsdCloseClient(con
);
1196 if (!strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") &&
1197 con
->http
.tls
== NULL
)
1201 * Do encryption stuff...
1204 if (!cupsdSendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
, CUPSD_AUTH_NONE
))
1206 cupsdCloseClient(con
);
1210 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1211 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1212 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1213 httpPrintf(HTTP(con
), "\r\n");
1215 if (cupsdFlushHeader(con
) < 0)
1217 cupsdCloseClient(con
);
1221 if (!encrypt_client(con
))
1223 cupsdCloseClient(con
);
1227 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
))
1229 cupsdCloseClient(con
);
1232 #endif /* HAVE_SSL */
1235 if (!cupsdSendHeader(con
, HTTP_OK
, NULL
, CUPSD_AUTH_NONE
))
1237 cupsdCloseClient(con
);
1241 httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n");
1242 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1243 httpPrintf(HTTP(con
), "\r\n");
1245 if (cupsdFlushHeader(con
) < 0)
1247 cupsdCloseClient(con
);
1251 else if (!is_path_absolute(con
->uri
))
1254 * Protect against malicious users!
1257 cupsdLogMessage(CUPSD_LOG_ERROR
,
1258 "Request for non-absolute resource \"%s\"!", con
->uri
);
1260 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1262 cupsdCloseClient(con
);
1268 if (!strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") &&
1269 con
->http
.tls
== NULL
)
1273 * Do encryption stuff...
1276 if (!cupsdSendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
, CUPSD_AUTH_NONE
))
1278 cupsdCloseClient(con
);
1282 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1283 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1284 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1285 httpPrintf(HTTP(con
), "\r\n");
1287 if (cupsdFlushHeader(con
) < 0)
1289 cupsdCloseClient(con
);
1293 if (!encrypt_client(con
))
1295 cupsdCloseClient(con
);
1299 if (!cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
))
1301 cupsdCloseClient(con
);
1304 #endif /* HAVE_SSL */
1307 if ((status
= cupsdIsAuthorized(con
, NULL
)) != HTTP_OK
)
1309 cupsdSendError(con
, status
, CUPSD_AUTH_NONE
);
1310 cupsdCloseClient(con
);
1314 if (con
->http
.expect
&&
1315 (con
->operation
== HTTP_POST
|| con
->operation
== HTTP_PUT
))
1317 if (con
->http
.expect
== HTTP_CONTINUE
)
1320 * Send 100-continue header...
1323 if (!cupsdSendHeader(con
, HTTP_CONTINUE
, NULL
, CUPSD_AUTH_NONE
))
1325 cupsdCloseClient(con
);
1332 * Send 417-expectation-failed header...
1335 if (!cupsdSendHeader(con
, HTTP_EXPECTATION_FAILED
, NULL
,
1338 cupsdCloseClient(con
);
1342 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1343 httpPrintf(HTTP(con
), "\r\n");
1345 if (cupsdFlushHeader(con
) < 0)
1347 cupsdCloseClient(con
);
1353 switch (con
->http
.state
)
1355 case HTTP_GET_SEND
:
1356 if (!strncmp(con
->uri
, "/printers/", 10) &&
1357 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1360 * Send PPD file - get the real printer name since printer
1361 * names are not case sensitive but filenames can be...
1364 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1366 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1367 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1370 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1372 cupsdCloseClient(con
);
1380 if ((!strncmp(con
->uri
, "/admin", 6) &&
1381 strncmp(con
->uri
, "/admin/conf/", 12) &&
1382 strncmp(con
->uri
, "/admin/log/", 11)) ||
1383 !strncmp(con
->uri
, "/printers", 9) ||
1384 !strncmp(con
->uri
, "/classes", 8) ||
1385 !strncmp(con
->uri
, "/help", 5) ||
1386 !strncmp(con
->uri
, "/jobs", 5))
1389 * Send CGI output...
1392 if (!strncmp(con
->uri
, "/admin", 6))
1394 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1397 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1399 else if (!strncmp(con
->uri
, "/printers", 9))
1401 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1404 if (con
->uri
[9] && con
->uri
[10])
1405 cupsdSetString(&con
->options
, con
->uri
+ 9);
1407 cupsdSetString(&con
->options
, NULL
);
1409 else if (!strncmp(con
->uri
, "/classes", 8))
1411 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1414 if (con
->uri
[8] && con
->uri
[9])
1415 cupsdSetString(&con
->options
, con
->uri
+ 8);
1417 cupsdSetString(&con
->options
, NULL
);
1419 else if (!strncmp(con
->uri
, "/jobs", 5))
1421 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1424 if (con
->uri
[5] && con
->uri
[6])
1425 cupsdSetString(&con
->options
, con
->uri
+ 5);
1427 cupsdSetString(&con
->options
, NULL
);
1431 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1434 if (con
->uri
[5] && con
->uri
[6])
1435 cupsdSetString(&con
->options
, con
->uri
+ 5);
1437 cupsdSetString(&con
->options
, NULL
);
1440 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1442 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1444 cupsdCloseClient(con
);
1449 cupsdLogRequest(con
, HTTP_OK
);
1451 if (con
->http
.version
<= HTTP_1_0
)
1452 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1454 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1455 (strchr(con
->uri
+ 12, '/') ||
1456 strlen(con
->uri
) == 12)) ||
1457 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1458 (strchr(con
->uri
+ 11, '/') ||
1459 strlen(con
->uri
) == 11)))
1462 * GET can only be done to configuration files directly under
1466 cupsdLogMessage(CUPSD_LOG_ERROR
,
1467 "Request for subdirectory \"%s\"!", con
->uri
);
1469 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1471 cupsdCloseClient(con
);
1483 if ((filename
= get_file(con
, &filestats
, buf
,
1484 sizeof(buf
))) == NULL
)
1486 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1488 cupsdCloseClient(con
);
1495 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1497 if (is_cgi(con
, filename
, &filestats
, type
))
1500 * Note: con->command and con->options were set by
1504 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
1506 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1508 cupsdCloseClient(con
);
1513 cupsdLogRequest(con
, HTTP_OK
);
1515 if (con
->http
.version
<= HTTP_1_0
)
1516 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1520 if (!check_if_modified(con
, &filestats
))
1522 if (!cupsdSendError(con
, HTTP_NOT_MODIFIED
, CUPSD_AUTH_NONE
))
1524 cupsdCloseClient(con
);
1531 strcpy(line
, "text/plain");
1533 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1535 if (!write_file(con
, HTTP_OK
, filename
, line
, &filestats
))
1537 cupsdCloseClient(con
);
1544 case HTTP_POST_RECV
:
1546 * See if the POST request includes a Content-Length field, and if
1547 * so check the length against any limits that are set...
1550 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1551 MaxRequestSize
> 0 &&
1552 con
->http
.data_remaining
> MaxRequestSize
)
1555 * Request too large...
1558 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1560 cupsdCloseClient(con
);
1566 else if (con
->http
.data_remaining
< 0 ||
1567 (!con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1568 con
->http
.data_encoding
== HTTP_ENCODE_LENGTH
))
1571 * Negative content lengths are invalid!
1574 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1576 cupsdCloseClient(con
);
1584 * See what kind of POST request this is; for IPP requests the
1585 * content-type field will be "application/ipp"...
1588 if (!strcmp(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
],
1590 con
->request
= ippNew();
1591 else if ((!strncmp(con
->uri
, "/admin", 6) &&
1592 strncmp(con
->uri
, "/admin/conf/", 12) &&
1593 strncmp(con
->uri
, "/admin/log/", 11)) ||
1594 !strncmp(con
->uri
, "/printers", 9) ||
1595 !strncmp(con
->uri
, "/classes", 8) ||
1596 !strncmp(con
->uri
, "/help", 5) ||
1597 !strncmp(con
->uri
, "/jobs", 5))
1603 if (!strncmp(con
->uri
, "/admin", 6))
1605 cupsdSetStringf(&con
->command
, "%s/cgi-bin/admin.cgi",
1608 cupsdSetString(&con
->options
, strchr(con
->uri
+ 6, '?'));
1610 else if (!strncmp(con
->uri
, "/printers", 9))
1612 cupsdSetStringf(&con
->command
, "%s/cgi-bin/printers.cgi",
1615 if (con
->uri
[9] && con
->uri
[10])
1616 cupsdSetString(&con
->options
, con
->uri
+ 9);
1618 cupsdSetString(&con
->options
, NULL
);
1620 else if (!strncmp(con
->uri
, "/classes", 8))
1622 cupsdSetStringf(&con
->command
, "%s/cgi-bin/classes.cgi",
1625 if (con
->uri
[8] && con
->uri
[9])
1626 cupsdSetString(&con
->options
, con
->uri
+ 8);
1628 cupsdSetString(&con
->options
, NULL
);
1630 else if (!strncmp(con
->uri
, "/jobs", 5))
1632 cupsdSetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi",
1635 if (con
->uri
[5] && con
->uri
[6])
1636 cupsdSetString(&con
->options
, con
->uri
+ 5);
1638 cupsdSetString(&con
->options
, NULL
);
1642 cupsdSetStringf(&con
->command
, "%s/cgi-bin/help.cgi",
1645 if (con
->uri
[5] && con
->uri
[6])
1646 cupsdSetString(&con
->options
, con
->uri
+ 5);
1648 cupsdSetString(&con
->options
, NULL
);
1651 if (con
->http
.version
<= HTTP_1_0
)
1652 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1660 if ((filename
= get_file(con
, &filestats
, buf
,
1661 sizeof(buf
))) == NULL
)
1663 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1665 cupsdCloseClient(con
);
1672 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1674 if (!is_cgi(con
, filename
, &filestats
, type
))
1677 * Only POST to CGI's...
1680 if (!cupsdSendError(con
, HTTP_UNAUTHORIZED
, CUPSD_AUTH_NONE
))
1682 cupsdCloseClient(con
);
1689 case HTTP_PUT_RECV
:
1691 * Validate the resource name...
1694 if (strncmp(con
->uri
, "/admin/conf/", 12) ||
1695 strchr(con
->uri
+ 12, '/') ||
1696 strlen(con
->uri
) == 12)
1699 * PUT can only be done to configuration files under
1703 cupsdLogMessage(CUPSD_LOG_ERROR
,
1704 "Request for subdirectory \"%s\"!", con
->uri
);
1706 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1708 cupsdCloseClient(con
);
1716 * See if the PUT request includes a Content-Length field, and if
1717 * so check the length against any limits that are set...
1720 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1721 MaxRequestSize
> 0 &&
1722 con
->http
.data_remaining
> MaxRequestSize
)
1725 * Request too large...
1728 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1730 cupsdCloseClient(con
);
1736 else if (con
->http
.data_remaining
< 0)
1739 * Negative content lengths are invalid!
1742 if (!cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
))
1744 cupsdCloseClient(con
);
1752 * Open a temporary file to hold the request...
1755 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
,
1757 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1761 cupsdLogMessage(CUPSD_LOG_ERROR
,
1762 "Unable to create request file %s: %s",
1763 con
->filename
, strerror(errno
));
1765 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1767 cupsdCloseClient(con
);
1772 fchmod(con
->file
, 0640);
1773 fchown(con
->file
, RunUser
, Group
);
1774 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1779 cupsdSendError(con
, HTTP_NOT_IMPLEMENTED
, CUPSD_AUTH_NONE
);
1780 cupsdCloseClient(con
);
1784 if (!strncmp(con
->uri
, "/printers/", 10) &&
1785 !strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd"))
1788 * Send PPD file - get the real printer name since printer
1789 * names are not case sensitive but filenames can be...
1792 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1794 if ((p
= cupsdFindPrinter(con
->uri
+ 10)) != NULL
)
1795 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1798 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
1800 cupsdCloseClient(con
);
1808 if ((!strncmp(con
->uri
, "/admin", 6) &&
1809 strncmp(con
->uri
, "/admin/conf/", 12) &&
1810 strncmp(con
->uri
, "/admin/log/", 11)) ||
1811 !strncmp(con
->uri
, "/printers", 9) ||
1812 !strncmp(con
->uri
, "/classes", 8) ||
1813 !strncmp(con
->uri
, "/help", 5) ||
1814 !strncmp(con
->uri
, "/jobs", 5))
1820 if (!cupsdSendHeader(con
, HTTP_OK
, "text/html", CUPSD_AUTH_NONE
))
1822 cupsdCloseClient(con
);
1826 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1828 cupsdCloseClient(con
);
1832 if (cupsdFlushHeader(con
) < 0)
1834 cupsdCloseClient(con
);
1838 cupsdLogRequest(con
, HTTP_OK
);
1840 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1841 (strchr(con
->uri
+ 12, '/') ||
1842 strlen(con
->uri
) == 12)) ||
1843 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1844 (strchr(con
->uri
+ 11, '/') ||
1845 strlen(con
->uri
) == 11)))
1848 * HEAD can only be done to configuration files under
1852 cupsdLogMessage(CUPSD_LOG_ERROR
,
1853 "Request for subdirectory \"%s\"!", con
->uri
);
1855 if (!cupsdSendError(con
, HTTP_FORBIDDEN
, CUPSD_AUTH_NONE
))
1857 cupsdCloseClient(con
);
1863 else if ((filename
= get_file(con
, &filestats
, buf
,
1864 sizeof(buf
))) == NULL
)
1866 if (!cupsdSendHeader(con
, HTTP_NOT_FOUND
, "text/html",
1869 cupsdCloseClient(con
);
1873 cupsdLogRequest(con
, HTTP_NOT_FOUND
);
1875 else if (!check_if_modified(con
, &filestats
))
1877 if (!cupsdSendError(con
, HTTP_NOT_MODIFIED
, CUPSD_AUTH_NONE
))
1879 cupsdCloseClient(con
);
1883 cupsdLogRequest(con
, HTTP_NOT_MODIFIED
);
1891 type
= mimeFileType(MimeDatabase
, filename
, NULL
, NULL
);
1893 strcpy(line
, "text/plain");
1895 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1897 if (!cupsdSendHeader(con
, HTTP_OK
, line
, CUPSD_AUTH_NONE
))
1899 cupsdCloseClient(con
);
1903 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
1904 httpGetDateString(filestats
.st_mtime
)) < 0)
1906 cupsdCloseClient(con
);
1910 if (httpPrintf(HTTP(con
), "Content-Length: %lu\r\n",
1911 (unsigned long)filestats
.st_size
) < 0)
1913 cupsdCloseClient(con
);
1917 cupsdLogRequest(con
, HTTP_OK
);
1920 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1922 cupsdCloseClient(con
);
1926 if (cupsdFlushHeader(con
) < 0)
1928 cupsdCloseClient(con
);
1932 con
->http
.state
= HTTP_WAITING
;
1936 break; /* Anti-compiler-warning-code */
1942 * Handle any incoming data...
1945 switch (con
->http
.state
)
1947 case HTTP_PUT_RECV
:
1950 if ((bytes
= httpRead2(HTTP(con
), line
, sizeof(line
))) < 0)
1952 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
1953 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1954 "cupsdReadClient: %d PUT_RECV Closing for error "
1955 "%d (%s)", con
->http
.fd
, con
->http
.error
,
1956 strerror(con
->http
.error
));
1958 cupsdLogMessage(CUPSD_LOG_DEBUG
,
1959 "cupsdReadClient: %d PUT_RECV Closing on EOF",
1962 cupsdCloseClient(con
);
1967 con
->bytes
+= bytes
;
1969 if (write(con
->file
, line
, bytes
) < bytes
)
1971 cupsdLogMessage(CUPSD_LOG_ERROR
,
1972 "cupsdReadClient: Unable to write %d bytes to %s: %s",
1973 bytes
, con
->filename
, strerror(errno
));
1977 unlink(con
->filename
);
1978 cupsdClearString(&con
->filename
);
1980 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
1982 cupsdCloseClient(con
);
1988 while (con
->http
.state
== HTTP_PUT_RECV
&& data_ready(con
));
1990 if (con
->http
.state
== HTTP_WAITING
)
1993 * End of file, see how big it is...
1996 fstat(con
->file
, &filestats
);
2001 if (filestats
.st_size
> MaxRequestSize
&&
2005 * Request is too big; remove it and send an error...
2008 unlink(con
->filename
);
2009 cupsdClearString(&con
->filename
);
2011 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2013 cupsdCloseClient(con
);
2019 * Install the configuration file...
2022 status
= install_conf_file(con
);
2025 * Return the status to the client...
2028 if (!cupsdSendError(con
, status
, CUPSD_AUTH_NONE
))
2030 cupsdCloseClient(con
);
2036 case HTTP_POST_RECV
:
2039 if (con
->request
&& con
->file
< 0)
2042 * Grab any request data from the connection...
2045 if ((ipp_state
= ippRead(&(con
->http
), con
->request
)) == IPP_ERROR
)
2047 cupsdLogMessage(CUPSD_LOG_ERROR
,
2048 "cupsdReadClient: %d IPP Read Error!",
2051 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
2052 cupsdCloseClient(con
);
2055 else if (ipp_state
!= IPP_DATA
)
2057 if (con
->http
.state
== HTTP_POST_SEND
)
2059 cupsdSendError(con
, HTTP_BAD_REQUEST
, CUPSD_AUTH_NONE
);
2060 cupsdCloseClient(con
);
2068 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdReadClient: %d %d.%d %s %d",
2069 con
->http
.fd
, con
->request
->request
.op
.version
[0],
2070 con
->request
->request
.op
.version
[1],
2071 ippOpString(con
->request
->request
.op
.operation_id
),
2072 con
->request
->request
.op
.request_id
);
2073 con
->bytes
+= ippLength(con
->request
);
2077 if (con
->file
< 0 && con
->http
.state
!= HTTP_POST_SEND
)
2080 * Create a file as needed for the request data...
2083 cupsdSetStringf(&con
->filename
, "%s/%08x", RequestRoot
,
2085 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
2089 cupsdLogMessage(CUPSD_LOG_ERROR
,
2090 "Unable to create request file %s: %s",
2091 con
->filename
, strerror(errno
));
2093 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2095 cupsdCloseClient(con
);
2100 fchmod(con
->file
, 0640);
2101 fchown(con
->file
, RunUser
, Group
);
2102 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
2105 if (con
->http
.state
!= HTTP_POST_SEND
)
2107 if ((bytes
= httpRead2(HTTP(con
), line
, sizeof(line
))) < 0)
2109 if (con
->http
.error
&& con
->http
.error
!= EPIPE
)
2110 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2111 "cupsdReadClient: %d POST_SEND Closing for "
2112 "error %d (%s)", con
->http
.fd
, con
->http
.error
,
2113 strerror(con
->http
.error
));
2115 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2116 "cupsdReadClient: %d POST_SEND Closing on EOF",
2119 cupsdCloseClient(con
);
2124 con
->bytes
+= bytes
;
2126 if (write(con
->file
, line
, bytes
) < bytes
)
2128 cupsdLogMessage(CUPSD_LOG_ERROR
,
2129 "cupsdReadClient: Unable to write %d bytes to "
2130 "%s: %s", bytes
, con
->filename
,
2135 unlink(con
->filename
);
2136 cupsdClearString(&con
->filename
);
2138 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
,
2141 cupsdCloseClient(con
);
2146 else if (con
->http
.state
== HTTP_POST_RECV
)
2148 else if (con
->http
.state
!= HTTP_POST_SEND
)
2150 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2151 "cupsdReadClient: %d Closing on unknown HTTP "
2152 "state %d", con
->http
.fd
, con
->http
.state
);
2153 cupsdCloseClient(con
);
2158 while (con
->http
.state
== HTTP_POST_RECV
&& data_ready(con
));
2160 if (con
->http
.state
== HTTP_POST_SEND
)
2164 fstat(con
->file
, &filestats
);
2169 if (filestats
.st_size
> MaxRequestSize
&&
2173 * Request is too big; remove it and send an error...
2176 unlink(con
->filename
);
2177 cupsdClearString(&con
->filename
);
2182 * Delete any IPP request data...
2185 ippDelete(con
->request
);
2186 con
->request
= NULL
;
2189 if (!cupsdSendError(con
, HTTP_REQUEST_TOO_LARGE
, CUPSD_AUTH_NONE
))
2191 cupsdCloseClient(con
);
2198 if (!cupsdSendCommand(con
, con
->command
, con
->options
, 0))
2200 if (!cupsdSendError(con
, HTTP_NOT_FOUND
, CUPSD_AUTH_NONE
))
2202 cupsdCloseClient(con
);
2207 cupsdLogRequest(con
, HTTP_OK
);
2213 cupsdProcessIPPRequest(con
);
2217 unlink(con
->filename
);
2218 cupsdClearString(&con
->filename
);
2227 break; /* Anti-compiler-warning-code */
2230 if (con
->http
.state
== HTTP_WAITING
)
2232 if (!con
->http
.keep_alive
)
2234 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2235 "cupsdReadClient: %d Closing because Keep-Alive disabled",
2237 cupsdCloseClient(con
);
2241 cupsArrayRemove(ActiveClients
, con
);
2242 cupsdSetBusyState();
2249 * 'cupsdSendCommand()' - Send output from a command via HTTP.
2252 int /* O - 1 on success, 0 on failure */
2254 cupsd_client_t
*con
, /* I - Client connection */
2255 char *command
, /* I - Command to run */
2256 char *options
, /* I - Command-line options */
2257 int root
) /* I - Run as root? */
2259 int fd
; /* Standard input file descriptor */
2264 fd
= open(con
->filename
, O_RDONLY
);
2268 cupsdLogMessage(CUPSD_LOG_ERROR
,
2269 "cupsdSendCommand: %d Unable to open \"%s\" for reading: %s",
2270 con
->http
.fd
, con
->filename
? con
->filename
: "/dev/null",
2275 fcntl(fd
, F_SETFD
, fcntl(fd
, F_GETFD
) | FD_CLOEXEC
);
2280 con
->pipe_pid
= pipe_command(con
, fd
, &(con
->file
), command
, options
, root
);
2285 cupsdLogMessage(CUPSD_LOG_INFO
, "Started \"%s\" (pid=%d)", command
,
2288 cupsdLogMessage(CUPSD_LOG_DEBUG
, "cupsdSendCommand: %d file=%d",
2289 con
->http
.fd
, con
->file
);
2291 if (con
->pipe_pid
== 0)
2294 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
2296 cupsdAddSelect(con
->file
, (cupsd_selfunc_t
)write_pipe
, NULL
, con
);
2298 con
->sent_header
= 0;
2299 con
->file_ready
= 0;
2300 con
->got_fields
= 0;
2301 con
->header_used
= 0;
2308 * 'cupsdSendError()' - Send an error message via HTTP.
2311 int /* O - 1 if successful, 0 otherwise */
2312 cupsdSendError(cupsd_client_t
*con
, /* I - Connection */
2313 http_status_t code
, /* I - Error code */
2314 int auth_type
)/* I - Authentication type */
2316 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2317 "cupsdSendError(con=%p(%d), code=%d, auth_type=%d", con
,
2318 con
->http
.fd
, code
, auth_type
);
2322 * Force client to upgrade for authentication if that is how the
2323 * server is configured...
2326 if (code
== HTTP_UNAUTHORIZED
&&
2327 DefaultEncryption
== HTTP_ENCRYPT_REQUIRED
&&
2328 strcasecmp(con
->http
.hostname
, "localhost") &&
2331 code
= HTTP_UPGRADE_REQUIRED
;
2333 #endif /* HAVE_SSL */
2336 * Put the request in the access_log file...
2339 cupsdLogRequest(con
, code
);
2342 * To work around bugs in some proxies, don't use Keep-Alive for some
2345 * Kerberos authentication doesn't work without Keep-Alive, so
2346 * never disable it in that case.
2349 if (code
>= HTTP_BAD_REQUEST
&& con
->http
.auth_type
!= CUPSD_AUTH_NEGOTIATE
)
2350 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
2353 * Send an error message back to the client. If the error code is a
2354 * 400 or 500 series, make sure the message contains some text, too!
2357 if (!cupsdSendHeader(con
, code
, NULL
, auth_type
))
2361 if (code
== HTTP_UPGRADE_REQUIRED
)
2362 if (httpPrintf(HTTP(con
), "Connection: Upgrade\r\n") < 0)
2365 if (httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0)
2367 #endif /* HAVE_SSL */
2369 if (con
->http
.version
>= HTTP_1_1
&&
2370 con
->http
.keep_alive
== HTTP_KEEPALIVE_OFF
)
2372 if (httpPrintf(HTTP(con
), "Connection: close\r\n") < 0)
2376 if (code
>= HTTP_BAD_REQUEST
)
2379 * Send a human-readable error message.
2382 char message
[4096], /* Message for user */
2383 urltext
[1024], /* URL redirection text */
2384 redirect
[1024]; /* Redirection link */
2385 const char *text
; /* Status-specific text */
2390 if (code
== HTTP_UNAUTHORIZED
)
2391 text
= _cupsLangString(con
->language
,
2392 _("Enter your username and password or the "
2393 "root username and password to access this "
2394 "page. If you are using Kerberos authentication, "
2395 "make sure you have a valid Kerberos ticket."));
2396 else if (code
== HTTP_UPGRADE_REQUIRED
)
2400 snprintf(urltext
, sizeof(urltext
),
2401 _cupsLangString(con
->language
,
2402 _("You must access this page using the URL "
2403 "<A HREF=\"https://%s:%d%s\">"
2404 "https://%s:%d%s</A>.")),
2405 con
->servername
, con
->serverport
, con
->uri
,
2406 con
->servername
, con
->serverport
, con
->uri
);
2408 snprintf(redirect
, sizeof(redirect
),
2409 "<META HTTP-EQUIV=\"Refresh\" "
2410 "CONTENT=\"3;URL=https://%s:%d%s\">\n",
2411 con
->servername
, con
->serverport
, con
->uri
);
2416 snprintf(message
, sizeof(message
),
2417 "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" "
2418 "\"http://www.w3.org/TR/html4/loose.dtd\">\n"
2421 "\t<META HTTP-EQUIV=\"Content-Type\" "
2422 "CONTENT=\"text/html; charset=utf-8\">\n"
2423 "\t<TITLE>%d %s</TITLE>\n"
2424 "\t<LINK REL=\"STYLESHEET\" TYPE=\"text/css\" "
2425 "HREF=\"/cups.css\">\n"
2433 code
, httpStatus(code
), redirect
, code
, httpStatus(code
), text
);
2435 if (httpPrintf(HTTP(con
), "Content-Type: text/html; charset=utf-8\r\n") < 0)
2437 if (httpPrintf(HTTP(con
), "Content-Length: %d\r\n",
2438 (int)strlen(message
)) < 0)
2440 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2442 if (httpPrintf(HTTP(con
), "%s", message
) < 0)
2445 else if (httpPrintf(HTTP(con
), "\r\n") < 0)
2448 if (cupsdFlushHeader(con
) < 0)
2451 con
->http
.state
= HTTP_WAITING
;
2458 * 'cupsdSendHeader()' - Send an HTTP request.
2461 int /* O - 1 on success, 0 on failure */
2463 cupsd_client_t
*con
, /* I - Client to send to */
2464 http_status_t code
, /* I - HTTP status code */
2465 char *type
, /* I - MIME type of document */
2466 int auth_type
) /* I - Type of authentication */
2468 char auth_str
[1024]; /* Authorization string */
2470 static char *gss_buf
= NULL
; /* Kerberos auth data buffer */
2471 static int gss_bufsize
= 0; /* Size of Kerberos auth data buffer */
2472 #endif /* HAVE_GSSAPI */
2476 * Send the HTTP status header...
2479 if (code
== HTTP_CONTINUE
)
2482 * 100-continue doesn't send any headers...
2485 return (httpPrintf(HTTP(con
), "HTTP/%d.%d 100 Continue\r\n\r\n",
2486 con
->http
.version
/ 100, con
->http
.version
% 100) > 0);
2489 httpFlushWrite(HTTP(con
));
2491 con
->http
.data_encoding
= HTTP_ENCODE_FIELDS
;
2493 if (httpPrintf(HTTP(con
), "HTTP/%d.%d %d %s\r\n", con
->http
.version
/ 100,
2494 con
->http
.version
% 100, code
, httpStatus(code
)) < 0)
2496 if (httpPrintf(HTTP(con
), "Date: %s\r\n", httpGetDateString(time(NULL
))) < 0)
2499 if (httpPrintf(HTTP(con
), "Server: %s\r\n", ServerHeader
) < 0)
2501 if (con
->http
.keep_alive
&& con
->http
.version
>= HTTP_1_0
)
2503 if (httpPrintf(HTTP(con
), "Connection: Keep-Alive\r\n") < 0)
2505 if (httpPrintf(HTTP(con
), "Keep-Alive: timeout=%d\r\n",
2506 KeepAliveTimeout
) < 0)
2509 if (code
== HTTP_METHOD_NOT_ALLOWED
)
2510 if (httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n") < 0)
2513 if (code
== HTTP_UNAUTHORIZED
)
2515 if (auth_type
== CUPSD_AUTH_NONE
)
2517 if (!con
->best
|| con
->best
->type
<= CUPSD_AUTH_NONE
)
2518 auth_type
= DefaultAuthType
;
2520 auth_type
= con
->best
->type
;
2525 if (auth_type
== CUPSD_AUTH_BASIC
|| auth_type
== CUPSD_AUTH_BASICDIGEST
)
2526 strlcpy(auth_str
, "Basic realm=\"CUPS\"", sizeof(auth_str
));
2527 else if (auth_type
== CUPSD_AUTH_DIGEST
)
2528 snprintf(auth_str
, sizeof(auth_str
), "Digest realm=\"CUPS\", nonce=\"%s\"",
2529 con
->http
.hostname
);
2531 else if (auth_type
== CUPSD_AUTH_NEGOTIATE
&& con
->gss_output_token
.length
== 0)
2532 strlcpy(auth_str
, "Negotiate", sizeof(auth_str
));
2533 #endif /* HAVE_GSSAPI */
2535 if (con
->best
&& auth_type
!= CUPSD_AUTH_NEGOTIATE
&&
2536 !strcasecmp(con
->http
.hostname
, "localhost"))
2539 * Add a "trc" (try root certification) parameter for local non-Kerberos
2540 * requests when the request requires system group membership - then the
2541 * client knows the root certificate can/should be used.
2543 * Also, for Mac OS X we also look for @AUTHKEY and add an "authkey"
2544 * parameter as needed...
2547 int i
; /* Looping var */
2548 char *auth_key
; /* Auth key buffer */
2549 size_t auth_size
; /* Size of remaining buffer */
2551 auth_key
= auth_str
+ strlen(auth_str
);
2552 auth_size
= sizeof(auth_str
) - (auth_key
- auth_str
);
2554 for (i
= 0; i
< con
->best
->num_names
; i
++)
2556 #ifdef HAVE_AUTHORIZATION_H
2557 if (!strncasecmp(con
->best
->names
[i
], "@AUTHKEY(", 9))
2559 snprintf(auth_key
, auth_size
, ", authkey=\"%s\"",
2560 con
->best
->names
[i
] + 9);
2561 /* end parenthesis is stripped in conf.c */
2565 #endif /* HAVE_AUTHORIZATION_H */
2566 if (!strcasecmp(con
->best
->names
[i
], "@SYSTEM"))
2568 #ifdef HAVE_AUTHORIZATION_H
2569 if (SystemGroupAuthKey
)
2570 snprintf(auth_key
, auth_size
,
2571 ", authkey=\"%s\", trc=\"y\"",
2572 SystemGroupAuthKey
);
2575 strlcpy(auth_key
, ", trc=\"y\"", auth_size
);
2576 #endif /* HAVE_AUTHORIZATION_H */
2584 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2585 "cupsdSendHeader: %d WWW-Authenticate: %s", con
->http
.fd
,
2588 if (httpPrintf(HTTP(con
), "WWW-Authenticate: %s\r\n", auth_str
) < 0)
2595 * WWW-Authenticate: Negotiate can be included even for
2596 * non-401 replies...
2599 if (con
->gss_output_token
.length
> 0 && con
->gss_output_token
.length
<= 65536)
2601 OM_uint32 minor_status
; /* Minor status code */
2602 int bufsize
; /* Size of output token buffer */
2605 bufsize
= con
->gss_output_token
.length
* 4 / 3 + 2;
2607 if (bufsize
> gss_bufsize
)
2609 char *buf
; /* New buffer */
2612 bufsize
= (bufsize
+ 1023) & 1023;/* Round up */
2615 buf
= realloc(gss_buf
, bufsize
);
2617 buf
= malloc(bufsize
);
2621 cupsdLogMessage(CUPSD_LOG_ERROR
,
2622 "Unable to allocate %d bytes for Kerberos credentials!",
2628 gss_bufsize
= bufsize
;
2631 httpEncode64_2(gss_buf
, gss_bufsize
,
2632 con
->gss_output_token
.value
,
2633 con
->gss_output_token
.length
);
2634 gss_release_buffer(&minor_status
, &con
->gss_output_token
);
2636 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2637 "cupsdSendHeader: WWW-Authenticate: Negotiate %s", gss_buf
);
2639 if (httpPrintf(HTTP(con
), "WWW-Authenticate: Negotiate %s\r\n",
2643 else if (con
->gss_output_token
.length
> 65536)
2645 cupsdLogMessage(CUPSD_LOG_ERROR
,
2646 "Kerberos credentials larger than 64k (%d)!",
2647 (int)con
->gss_output_token
.length
);
2650 #endif /* HAVE_GSSAPI */
2652 if (con
->language
&& strcmp(con
->language
->language
, "C"))
2654 if (httpPrintf(HTTP(con
), "Content-Language: %s\r\n",
2655 con
->language
->language
) < 0)
2661 if (!strcmp(type
, "text/html"))
2663 if (httpPrintf(HTTP(con
),
2664 "Content-Type: text/html; charset=utf-8\r\n") < 0)
2667 else if (httpPrintf(HTTP(con
), "Content-Type: %s\r\n", type
) < 0)
2676 * 'cupsdUpdateCGI()' - Read status messages from CGI scripts and programs.
2680 cupsdUpdateCGI(void)
2682 char *ptr
, /* Pointer to end of line in buffer */
2683 message
[1024]; /* Pointer to message text */
2684 int loglevel
; /* Log level for message */
2687 while ((ptr
= cupsdStatBufUpdate(CGIStatusBuffer
, &loglevel
,
2688 message
, sizeof(message
))) != NULL
)
2690 if (loglevel
== CUPSD_LOG_INFO
)
2691 cupsdLogMessage(CUPSD_LOG_INFO
, "%s", message
);
2693 if (!strchr(CGIStatusBuffer
->buffer
, '\n'))
2697 if (ptr
== NULL
&& !CGIStatusBuffer
->bufused
)
2700 * Fatal error on pipe - should never happen!
2703 cupsdLogMessage(CUPSD_LOG_CRIT
,
2704 "cupsdUpdateCGI: error reading from CGI error pipe - %s",
2711 * 'cupsdWriteClient()' - Write data to a client as needed.
2715 cupsdWriteClient(cupsd_client_t
*con
) /* I - Client connection */
2717 int bytes
, /* Number of bytes written */
2718 field_col
; /* Current column */
2719 char *bufptr
, /* Pointer into buffer */
2720 *bufend
; /* Pointer to end of buffer */
2721 ipp_state_t ipp_state
; /* IPP state value */
2724 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
2725 "cupsdWriteClient(con=%p(%d)) response=%p(%d), file=%d "
2726 "pipe_pid=%d state=%d",
2727 con
, con
->http
.fd
, con
->response
,
2728 con
->response
? con
->response
->state
: -1,
2729 con
->file
, con
->pipe_pid
, con
->http
.state
);
2731 if (con
->http
.state
!= HTTP_GET_SEND
&&
2732 con
->http
.state
!= HTTP_POST_SEND
)
2735 * If we get called in the wrong state, then something went wrong with the
2736 * connection and we need to shut it down...
2739 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2740 "cupsdWriteClient: %d Closing on unknown HTTP state %d",
2741 con
->http
.fd
, con
->http
.state
);
2742 cupsdCloseClient(con
);
2749 * Make sure we select on the CGI output...
2752 cupsdAddSelect(con
->file
, (cupsd_selfunc_t
)write_pipe
, NULL
, con
);
2754 if (!con
->file_ready
)
2757 * Try again later when there is CGI output available...
2760 cupsdRemoveSelect(con
->http
.fd
);
2764 con
->file_ready
= 0;
2767 if (con
->response
&& con
->response
->state
!= IPP_DATA
)
2769 ipp_state
= ippWrite(HTTP(con
), con
->response
);
2770 bytes
= ipp_state
!= IPP_ERROR
&&
2771 (con
->file
>= 0 || ipp_state
!= IPP_DATA
);
2773 else if ((bytes
= read(con
->file
, con
->header
,
2774 sizeof(con
->header
) - con
->header_used
)) > 0)
2776 con
->header_used
+= bytes
;
2778 if (con
->pipe_pid
&& !con
->got_fields
)
2781 * Inspect the data for Content-Type and other fields.
2784 for (bufptr
= con
->header
, bufend
= con
->header
+ con
->header_used
,
2786 !con
->got_fields
&& bufptr
< bufend
;
2789 if (*bufptr
== '\n')
2792 * Send line to client...
2795 if (bufptr
> con
->header
&& bufptr
[-1] == '\r')
2799 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Script header: %s", con
->header
);
2801 if (!con
->sent_header
)
2804 * Handle redirection and CGI status codes...
2807 if (!strncasecmp(con
->header
, "Location:", 9))
2809 cupsdSendHeader(con
, HTTP_SEE_OTHER
, NULL
, CUPSD_AUTH_NONE
);
2810 con
->sent_header
= 2;
2812 if (httpPrintf(HTTP(con
), "Content-Length: 0\r\n") < 0)
2815 else if (!strncasecmp(con
->header
, "Status:", 7))
2817 cupsdSendError(con
, (http_status_t
)atoi(con
->header
+ 7),
2819 con
->sent_header
= 2;
2823 cupsdSendHeader(con
, HTTP_OK
, NULL
, CUPSD_AUTH_NONE
);
2824 con
->sent_header
= 1;
2826 if (con
->http
.version
== HTTP_1_1
)
2828 if (httpPrintf(HTTP(con
), "Transfer-Encoding: chunked\r\n") < 0)
2834 if (strncasecmp(con
->header
, "Status:", 7))
2835 httpPrintf(HTTP(con
), "%s\r\n", con
->header
);
2841 con
->header_used
-= bufptr
- con
->header
;
2843 if (con
->header_used
> 0)
2844 memmove(con
->header
, bufptr
, con
->header_used
);
2846 bufptr
= con
->header
- 1;
2849 * See if the line was empty...
2854 con
->got_fields
= 1;
2856 if (cupsdFlushHeader(con
) < 0)
2858 cupsdCloseClient(con
);
2862 if (con
->http
.version
== HTTP_1_1
)
2863 con
->http
.data_encoding
= HTTP_ENCODE_CHUNKED
;
2868 else if (*bufptr
!= '\r')
2872 if (!con
->got_fields
)
2874 con
->http
.activity
= time(NULL
);
2879 if (con
->header_used
> 0)
2881 if (httpWrite2(HTTP(con
), con
->header
, con
->header_used
) < 0)
2883 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2884 "cupsdWriteClient: %d Closing for error %d (%s)",
2885 con
->http
.fd
, con
->http
.error
,
2886 strerror(con
->http
.error
));
2887 cupsdCloseClient(con
);
2891 if (con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
)
2892 httpFlushWrite(HTTP(con
));
2894 con
->bytes
+= con
->header_used
;
2896 if (con
->http
.state
== HTTP_WAITING
)
2899 bytes
= con
->header_used
;
2901 con
->header_used
= 0;
2906 (con
->http
.state
!= HTTP_GET_SEND
&& con
->http
.state
!= HTTP_POST_SEND
))
2908 if (!con
->sent_header
&& con
->pipe_pid
)
2909 cupsdSendError(con
, HTTP_SERVER_ERROR
, CUPSD_AUTH_NONE
);
2912 cupsdLogRequest(con
, HTTP_OK
);
2914 httpFlushWrite(HTTP(con
));
2916 if (con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
&& con
->sent_header
== 1)
2918 if (httpWrite2(HTTP(con
), "", 0) < 0)
2920 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2921 "cupsdWriteClient: %d Closing for error %d (%s)",
2922 con
->http
.fd
, con
->http
.error
,
2923 strerror(con
->http
.error
));
2924 cupsdCloseClient(con
);
2930 con
->http
.state
= HTTP_WAITING
;
2932 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
, NULL
, con
);
2936 cupsdRemoveSelect(con
->file
);
2939 cupsdEndProcess(con
->pipe_pid
, 0);
2948 unlink(con
->filename
);
2949 cupsdClearString(&con
->filename
);
2954 ippDelete(con
->request
);
2955 con
->request
= NULL
;
2960 ippDelete(con
->response
);
2961 con
->response
= NULL
;
2964 cupsdClearString(&con
->command
);
2965 cupsdClearString(&con
->options
);
2966 cupsdClearString(&con
->query_string
);
2968 if (!con
->http
.keep_alive
)
2970 cupsdLogMessage(CUPSD_LOG_DEBUG
,
2971 "cupsdWriteClient: %d Closing because Keep-Alive disabled",
2973 cupsdCloseClient(con
);
2978 cupsArrayRemove(ActiveClients
, con
);
2979 cupsdSetBusyState();
2983 con
->http
.activity
= time(NULL
);
2988 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
2991 static int /* O - 1 if modified since */
2993 cupsd_client_t
*con
, /* I - Client connection */
2994 struct stat
*filestats
) /* I - File information */
2996 char *ptr
; /* Pointer into field */
2997 time_t date
; /* Time/date value */
2998 off_t size
; /* Size/length value */
3003 ptr
= con
->http
.fields
[HTTP_FIELD_IF_MODIFIED_SINCE
];
3008 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3009 "check_if_modified(con=%p(%d), "
3010 "filestats=%p(" CUPS_LLFMT
", %d)) If-Modified-Since=\"%s\"",
3011 con
, con
->http
.fd
, filestats
, CUPS_LLCAST filestats
->st_size
,
3012 (int)filestats
->st_mtime
, ptr
);
3014 while (*ptr
!= '\0')
3016 while (isspace(*ptr
) || *ptr
== ';')
3019 if (strncasecmp(ptr
, "length=", 7) == 0)
3022 size
= strtoll(ptr
, NULL
, 10);
3024 while (isdigit(*ptr
))
3027 else if (isalpha(*ptr
))
3029 date
= httpGetDateTime(ptr
);
3030 while (*ptr
!= '\0' && *ptr
!= ';')
3037 return ((size
!= filestats
->st_size
&& size
!= 0) ||
3038 (date
< filestats
->st_mtime
&& date
!= 0) ||
3039 (size
== 0 && date
== 0));
3044 * 'compare_clients()' - Compare two client connections.
3047 static int /* O - Result of comparison */
3048 compare_clients(cupsd_client_t
*a
, /* I - First client */
3049 cupsd_client_t
*b
, /* I - Second client */
3050 void *data
) /* I - User data (not used) */
3064 * 'data_ready()' - Check whether data is available from a client.
3067 static int /* O - 1 if data is ready, 0 otherwise */
3068 data_ready(cupsd_client_t
*con
) /* I - Client */
3070 if (con
->http
.used
> 0)
3073 else if (con
->http
.tls
)
3076 if (SSL_pending((SSL
*)(con
->http
.tls
)))
3078 # elif defined(HAVE_GNUTLS)
3079 if (gnutls_record_check_pending(((http_tls_t
*)(con
->http
.tls
))->session
))
3081 # elif defined(HAVE_CDSASSL)
3082 size_t bytes
; /* Bytes that are available */
3084 if (!SSLGetBufferedReadSize(((http_tls_t
*)(con
->http
.tls
))->session
,
3085 &bytes
) && bytes
> 0)
3087 # endif /* HAVE_LIBSSL */
3089 #endif /* HAVE_SSL */
3097 * 'encrypt_client()' - Enable encryption for the client...
3100 static int /* O - 1 on success, 0 on error */
3101 encrypt_client(cupsd_client_t
*con
) /* I - Client to encrypt */
3104 SSL_CTX
*context
; /* Context for encryption */
3105 SSL
*conn
; /* Connection for encryption */
3106 BIO
*bio
; /* BIO data */
3107 unsigned long error
; /* Error code */
3110 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "encrypt_client(con=%p(%d))", con
,
3114 * Verify that we have a certificate...
3117 if (access(ServerKey
, 0) || access(ServerCertificate
, 0))
3120 * Nope, make a self-signed certificate...
3123 if (!make_certificate(con
))
3128 * Create the SSL context and accept the connection...
3131 context
= SSL_CTX_new(SSLv23_server_method());
3133 SSL_CTX_set_options(context
, SSL_OP_NO_SSLv2
); /* Only use SSLv3 or TLS */
3134 if (SSLOptions
& CUPSD_SSL_NOEMPTY
)
3135 SSL_CTX_set_options(context
, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
);
3136 SSL_CTX_use_PrivateKey_file(context
, ServerKey
, SSL_FILETYPE_PEM
);
3137 SSL_CTX_use_certificate_chain_file(context
, ServerCertificate
);
3139 bio
= BIO_new(_httpBIOMethods());
3140 BIO_ctrl(bio
, BIO_C_SET_FILE_PTR
, 0, (char *)HTTP(con
));
3142 conn
= SSL_new(context
);
3143 SSL_set_bio(conn
, bio
, bio
);
3145 if (SSL_accept(conn
) != 1)
3147 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to encrypt connection from %s!",
3148 con
->http
.hostname
);
3150 while ((error
= ERR_get_error()) != 0)
3151 cupsdLogMessage(CUPSD_LOG_ERROR
, "%s", ERR_error_string(error
, NULL
));
3153 SSL_CTX_free(context
);
3158 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Connection from %s now encrypted.",
3159 con
->http
.hostname
);
3161 con
->http
.tls
= conn
;
3164 # elif defined(HAVE_GNUTLS)
3165 http_tls_t
*conn
; /* TLS session object */
3166 int error
; /* Error code */
3167 gnutls_certificate_server_credentials
*credentials
;
3168 /* TLS credentials */
3171 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "encrypt_client(con=%p(%d))", con
,
3175 * Verify that we have a certificate...
3178 if (access(ServerKey
, 0) || access(ServerCertificate
, 0))
3181 * Nope, make a self-signed certificate...
3184 if (!make_certificate(con
))
3189 * Create the SSL object and perform the SSL handshake...
3192 conn
= (http_tls_t
*)malloc(sizeof(http_tls_t
));
3197 credentials
= (gnutls_certificate_server_credentials
*)
3198 malloc(sizeof(gnutls_certificate_server_credentials
));
3199 if (credentials
== NULL
)
3201 cupsdLogMessage(CUPSD_LOG_ERROR
,
3202 "Unable to encrypt connection from %s - %s",
3203 con
->http
.hostname
, strerror(errno
));
3209 gnutls_certificate_allocate_credentials(credentials
);
3210 gnutls_certificate_set_x509_key_file(*credentials
, ServerCertificate
,
3211 ServerKey
, GNUTLS_X509_FMT_PEM
);
3213 gnutls_init(&(conn
->session
), GNUTLS_SERVER
);
3214 gnutls_set_default_priority(conn
->session
);
3215 gnutls_credentials_set(conn
->session
, GNUTLS_CRD_CERTIFICATE
, *credentials
);
3216 gnutls_transport_set_ptr(conn
->session
, (gnutls_transport_ptr
)HTTP(con
));
3217 gnutls_transport_set_pull_function(conn
->session
, _httpReadGNUTLS
);
3218 gnutls_transport_set_push_function(conn
->session
, _httpWriteGNUTLS
);
3220 error
= gnutls_handshake(conn
->session
);
3222 if (error
!= GNUTLS_E_SUCCESS
)
3224 cupsdLogMessage(CUPSD_LOG_ERROR
,
3225 "Unable to encrypt connection from %s - %s",
3226 con
->http
.hostname
, gnutls_strerror(error
));
3228 gnutls_deinit(conn
->session
);
3229 gnutls_certificate_free_credentials(*credentials
);
3235 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Connection from %s now encrypted.",
3236 con
->http
.hostname
);
3238 conn
->credentials
= credentials
;
3239 con
->http
.tls
= conn
;
3242 # elif defined(HAVE_CDSASSL)
3243 OSStatus error
; /* Error code */
3244 http_tls_t
*conn
; /* CDSA connection information */
3247 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "encrypt_client(con=%p(%d))", con
,
3250 if ((conn
= (http_tls_t
*)malloc(sizeof(http_tls_t
))) == NULL
)
3254 conn
->session
= NULL
;
3255 conn
->certsArray
= get_cdsa_certificate(con
);
3257 if (!conn
->certsArray
)
3260 * No keychain (yet), make a self-signed certificate...
3263 if (make_certificate(con
))
3264 conn
->certsArray
= get_cdsa_certificate(con
);
3267 if (!conn
->certsArray
)
3269 cupsdLogMessage(CUPSD_LOG_ERROR
,
3270 "Could not find signing key in keychain \"%s\"",
3272 error
= errSSLBadCert
; /* errSSLBadConfiguration is a better choice, but not available on 10.2.x */
3276 error
= SSLNewContext(true, &conn
->session
);
3279 error
= SSLSetIOFuncs(conn
->session
, _httpReadCDSA
, _httpWriteCDSA
);
3282 error
= SSLSetProtocolVersionEnabled(conn
->session
, kSSLProtocol2
, false);
3285 error
= SSLSetConnection(conn
->session
, HTTP(con
));
3288 error
= SSLSetAllowsExpiredCerts(conn
->session
, true);
3291 error
= SSLSetAllowsAnyRoot(conn
->session
, true);
3294 error
= SSLSetCertificate(conn
->session
, conn
->certsArray
);
3299 * Perform SSL/TLS handshake
3302 while ((error
= SSLHandshake(conn
->session
)) == errSSLWouldBlock
)
3308 cupsdLogMessage(CUPSD_LOG_ERROR
,
3309 "Unable to encrypt connection from %s - %s (%d)",
3310 con
->http
.hostname
, cssmErrorString(error
), (int)error
);
3312 con
->http
.error
= error
;
3313 con
->http
.status
= HTTP_ERROR
;
3316 SSLDisposeContext(conn
->session
);
3318 if (conn
->certsArray
)
3319 CFRelease(conn
->certsArray
);
3326 cupsdLogMessage(CUPSD_LOG_DEBUG
, "Connection from %s now encrypted.",
3327 con
->http
.hostname
);
3329 con
->http
.tls
= conn
;
3332 # endif /* HAVE_LIBSSL */
3334 #endif /* HAVE_SSL */
3339 * 'get_cdsa_certificate()' - Get a SSL/TLS certificate from the System keychain.
3342 static CFArrayRef
/* O - Array of certificates */
3343 get_cdsa_certificate(
3344 cupsd_client_t
*con
) /* I - Client connection */
3346 OSStatus err
; /* Error info */
3347 SecKeychainRef keychain
; /* Keychain reference */
3348 SecIdentitySearchRef search
; /* Search reference */
3349 SecIdentityRef identity
; /* Identity */
3350 CFArrayRef certificates
= NULL
;
3351 /* Certificate array */
3354 if ((err
= SecKeychainOpen(ServerCertificate
, &keychain
)))
3356 cupsdLogMessage(CUPSD_LOG_ERROR
, "Cannot open keychain \"%s\" - %s (%d)",
3357 ServerCertificate
, cssmErrorString(err
), (int)err
);
3361 # if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY
3363 * Use a policy to search for valid certificates who's common name matches the
3367 SecPolicySearchRef policy_search
; /* Policy search ref */
3368 SecPolicyRef policy
; /* Policy ref */
3369 CSSM_DATA options
; /* Policy options */
3370 CSSM_APPLE_TP_SSL_OPTIONS
3371 ssl_options
; /* SSL Option for hostname */
3372 char localname
[1024];/* Local hostname */
3375 if (SecPolicySearchCreate(CSSM_CERT_X_509v3
, &CSSMOID_APPLE_TP_SSL
,
3376 NULL
, &policy_search
))
3378 cupsdLogMessage(CUPSD_LOG_ERROR
, "Cannot create a policy search reference");
3379 CFRelease(keychain
);
3383 if (SecPolicySearchCopyNext(policy_search
, &policy
))
3385 cupsdLogMessage(CUPSD_LOG_ERROR
,
3386 "Cannot find a policy to use for searching");
3387 CFRelease(keychain
);
3388 CFRelease(policy_search
);
3392 memset(&ssl_options
, 0, sizeof(ssl_options
));
3393 ssl_options
.Version
= CSSM_APPLE_TP_SSL_OPTS_VERSION
;
3394 ssl_options
.ServerName
= con
->servername
;
3395 ssl_options
.ServerNameLen
= strlen(con
->servername
);
3397 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3398 "get_cdsa_certificate: Looking for certs for \"%s\"...",
3401 options
.Data
= (uint8
*)&ssl_options
;
3402 options
.Length
= sizeof(ssl_options
);
3404 if (SecPolicySetValue(policy
, &options
))
3406 cupsdLogMessage(CUPSD_LOG_ERROR
,
3407 "Cannot set policy value to use for searching");
3408 CFRelease(keychain
);
3409 CFRelease(policy_search
);
3413 err
= SecIdentitySearchCreateWithPolicy(policy
, NULL
, CSSM_KEYUSE_SIGN
,
3414 keychain
, FALSE
, &search
);
3415 if (err
&& DNSSDHostName
)
3418 * Search for the connection server name failed; try the DNS-SD .local
3419 * hostname instead...
3422 snprintf(localname
, sizeof(localname
), "%s.local", DNSSDHostName
);
3424 ssl_options
.ServerName
= localname
;
3425 ssl_options
.ServerNameLen
= strlen(localname
);
3427 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3428 "get_cdsa_certificate: Looking for certs for \"%s\"...",
3431 if (SecPolicySetValue(policy
, &options
))
3433 cupsdLogMessage(CUPSD_LOG_ERROR
,
3434 "Cannot set policy value to use for searching");
3435 CFRelease(keychain
);
3436 CFRelease(policy_search
);
3440 err
= SecIdentitySearchCreateWithPolicy(policy
, NULL
, CSSM_KEYUSE_SIGN
,
3441 keychain
, FALSE
, &search
);
3446 * Assume there is exactly one SecIdentity in the keychain...
3449 err
= SecIdentitySearchCreate(keychain
, CSSM_KEYUSE_SIGN
, &search
);
3450 # endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */
3453 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3454 "Cannot create keychain search reference: %s (%d)",
3455 cssmErrorString(err
), (int)err
);
3458 if ((err
= SecIdentitySearchCopyNext(search
, &identity
)))
3460 cupsdLogMessage(CUPSD_LOG_DEBUG
,
3461 "Cannot find signing key in keychain \"%s\": %s (%d)",
3462 ServerCertificate
, cssmErrorString(err
), (int)err
);
3466 if (CFGetTypeID(identity
) != SecIdentityGetTypeID())
3467 cupsdLogMessage(CUPSD_LOG_ERROR
,
3468 "SecIdentitySearchCopyNext CFTypeID failure!");
3471 if ((certificates
= CFArrayCreate(NULL
, (const void **)&identity
,
3472 1, &kCFTypeArrayCallBacks
)) == NULL
)
3473 cupsdLogMessage(CUPSD_LOG_ERROR
, "Cannot create certificate array");
3476 CFRelease(identity
);
3482 # if HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY
3484 CFRelease(policy_search
);
3485 # endif /* HAVE_SECIDENTITYSEARCHCREATEWITHPOLICY */
3487 return (certificates
);
3489 #endif /* HAVE_CDSASSL */
3493 * 'get_file()' - Get a filename and state info.
3496 static char * /* O - Real filename */
3497 get_file(cupsd_client_t
*con
, /* I - Client connection */
3498 struct stat
*filestats
, /* O - File information */
3499 char *filename
, /* IO - Filename buffer */
3500 int len
) /* I - Buffer length */
3502 int status
; /* Status of filesystem calls */
3503 char *ptr
; /* Pointer info filename */
3504 int plen
; /* Remaining length after pointer */
3505 char language
[7]; /* Language subdirectory, if any */
3509 * Figure out the real filename...
3514 if (!strncmp(con
->uri
, "/ppd/", 5))
3515 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
);
3516 else if (!strncmp(con
->uri
, "/rss/", 5) && !strchr(con
->uri
+ 5, '/'))
3517 snprintf(filename
, len
, "%s/rss/%s", CacheDir
, con
->uri
+ 5);
3518 else if (!strncmp(con
->uri
, "/admin/conf/", 12))
3519 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
+ 11);
3520 else if (!strncmp(con
->uri
, "/admin/log/", 11))
3522 if (!strncmp(con
->uri
+ 11, "access_log", 10) && AccessLog
[0] == '/')
3523 strlcpy(filename
, AccessLog
, len
);
3524 else if (!strncmp(con
->uri
+ 11, "error_log", 9) && ErrorLog
[0] == '/')
3525 strlcpy(filename
, ErrorLog
, len
);
3526 else if (!strncmp(con
->uri
+ 11, "page_log", 8) && PageLog
[0] == '/')
3527 strlcpy(filename
, PageLog
, len
);
3531 else if (con
->language
)
3533 snprintf(language
, sizeof(language
), "/%s", con
->language
->language
);
3534 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
3537 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
3539 if ((ptr
= strchr(filename
, '?')) != NULL
)
3543 * Grab the status for this language; if there isn't a language-specific file
3544 * then fallback to the default one...
3547 if ((status
= stat(filename
, filestats
)) != 0 && language
[0] &&
3548 strncmp(con
->uri
, "/ppd/", 5) &&
3549 strncmp(con
->uri
, "/admin/conf/", 12) &&
3550 strncmp(con
->uri
, "/admin/log/", 11))
3553 * Drop the country code...
3557 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
3559 if ((ptr
= strchr(filename
, '?')) != NULL
)
3562 if ((status
= stat(filename
, filestats
)) != 0)
3565 * Drop the language prefix and try the root directory...
3569 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
3571 if ((ptr
= strchr(filename
, '?')) != NULL
)
3574 status
= stat(filename
, filestats
);
3579 * If we're found a directory, get the index.html file instead...
3582 if (!status
&& S_ISDIR(filestats
->st_mode
))
3585 * Make sure the URI ends with a slash...
3588 if (con
->uri
[strlen(con
->uri
) - 1] != '/')
3589 strlcat(con
->uri
, "/", sizeof(con
->uri
));
3592 * Find the directory index file, trying every language...
3597 if (status
&& language
[0])
3600 * Try a different language subset...
3604 language
[0] = '\0'; /* Strip country code */
3606 language
[0] = '\0'; /* Strip language */
3610 * Look for the index file...
3613 snprintf(filename
, len
, "%s%s%s", DocumentRoot
, language
, con
->uri
);
3615 if ((ptr
= strchr(filename
, '?')) != NULL
)
3618 ptr
= filename
+ strlen(filename
);
3619 plen
= len
- (ptr
- filename
);
3621 strlcpy(ptr
, "index.html", plen
);
3622 status
= stat(filename
, filestats
);
3627 strlcpy(ptr
, "index.class", plen
);
3628 status
= stat(filename
, filestats
);
3630 #endif /* HAVE_JAVA */
3635 strlcpy(ptr
, "index.pl", plen
);
3636 status
= stat(filename
, filestats
);
3638 #endif /* HAVE_PERL */
3643 strlcpy(ptr
, "index.php", plen
);
3644 status
= stat(filename
, filestats
);
3646 #endif /* HAVE_PHP */
3651 strlcpy(ptr
, "index.pyc", plen
);
3652 status
= stat(filename
, filestats
);
3657 strlcpy(ptr
, "index.py", plen
);
3658 status
= stat(filename
, filestats
);
3660 #endif /* HAVE_PYTHON */
3663 while (status
&& language
[0]);
3666 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3667 "get_file(con=%p(%d), filestats=%p, filename=%p, len=%d) = "
3668 "%s", con
, con
->http
.fd
, filestats
, filename
, len
,
3669 status
? "(null)" : filename
);
3679 * 'install_conf_file()' - Install a configuration file.
3682 static http_status_t
/* O - Status */
3683 install_conf_file(cupsd_client_t
*con
) /* I - Connection */
3685 cups_file_t
*in
, /* Input file */
3686 *out
; /* Output file */
3687 char buffer
[1024]; /* Copy buffer */
3688 int bytes
; /* Number of bytes */
3689 char conffile
[1024], /* Configuration filename */
3690 newfile
[1024], /* New config filename */
3691 oldfile
[1024]; /* Old config filename */
3692 struct stat confinfo
; /* Config file info */
3696 * First construct the filenames...
3699 snprintf(conffile
, sizeof(conffile
), "%s%s", ServerRoot
, con
->uri
+ 11);
3700 snprintf(newfile
, sizeof(newfile
), "%s%s.N", ServerRoot
, con
->uri
+ 11);
3701 snprintf(oldfile
, sizeof(oldfile
), "%s%s.O", ServerRoot
, con
->uri
+ 11);
3703 cupsdLogMessage(CUPSD_LOG_INFO
, "Installing config file \"%s\"...", conffile
);
3706 * Get the owner, group, and permissions of the configuration file.
3707 * If it doesn't exist, assign it to the User and Group in the
3708 * cupsd.conf file with mode 0640 permissions.
3711 if (stat(conffile
, &confinfo
))
3713 confinfo
.st_uid
= User
;
3714 confinfo
.st_gid
= Group
;
3715 confinfo
.st_mode
= ConfigFilePerm
;
3719 * Open the request file and new config file...
3722 if ((in
= cupsFileOpen(con
->filename
, "rb")) == NULL
)
3724 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to open request file \"%s\" - %s",
3725 con
->filename
, strerror(errno
));
3726 return (HTTP_SERVER_ERROR
);
3729 if ((out
= cupsFileOpen(newfile
, "wb")) == NULL
)
3732 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to open config file \"%s\" - %s",
3733 newfile
, strerror(errno
));
3734 return (HTTP_SERVER_ERROR
);
3737 fchmod(cupsFileNumber(out
), confinfo
.st_mode
);
3738 fchown(cupsFileNumber(out
), confinfo
.st_uid
, confinfo
.st_gid
);
3741 * Copy from the request to the new config file...
3744 while ((bytes
= cupsFileRead(in
, buffer
, sizeof(buffer
))) > 0)
3745 if (cupsFileWrite(out
, buffer
, bytes
) < bytes
)
3747 cupsdLogMessage(CUPSD_LOG_ERROR
,
3748 "Unable to copy to config file \"%s\" - %s",
3749 newfile
, strerror(errno
));
3755 return (HTTP_SERVER_ERROR
);
3759 * Close the files...
3763 if (cupsFileClose(out
))
3765 cupsdLogMessage(CUPSD_LOG_ERROR
,
3766 "Error file closing config file \"%s\" - %s",
3767 newfile
, strerror(errno
));
3771 return (HTTP_SERVER_ERROR
);
3775 * Remove the request file...
3778 unlink(con
->filename
);
3779 cupsdClearString(&con
->filename
);
3782 * Unlink the old backup, rename the current config file to the backup
3783 * filename, and rename the new config file to the config file name...
3786 if (unlink(oldfile
))
3787 if (errno
!= ENOENT
)
3789 cupsdLogMessage(CUPSD_LOG_ERROR
,
3790 "Unable to remove backup config file \"%s\" - %s",
3791 oldfile
, strerror(errno
));
3795 return (HTTP_SERVER_ERROR
);
3798 if (rename(conffile
, oldfile
))
3799 if (errno
!= ENOENT
)
3801 cupsdLogMessage(CUPSD_LOG_ERROR
,
3802 "Unable to rename old config file \"%s\" - %s",
3803 conffile
, strerror(errno
));
3807 return (HTTP_SERVER_ERROR
);
3810 if (rename(newfile
, conffile
))
3812 cupsdLogMessage(CUPSD_LOG_ERROR
,
3813 "Unable to rename new config file \"%s\" - %s",
3814 newfile
, strerror(errno
));
3816 rename(oldfile
, conffile
);
3819 return (HTTP_SERVER_ERROR
);
3823 * If the cupsd.conf file was updated, set the NeedReload flag...
3826 if (!strcmp(con
->uri
, "/admin/conf/cupsd.conf"))
3827 NeedReload
= RELOAD_CUPSD
;
3829 NeedReload
= RELOAD_ALL
;
3831 ReloadTime
= time(NULL
);
3834 * Return that the file was created successfully...
3837 return (HTTP_CREATED
);
3842 * 'is_cgi()' - Is the resource a CGI script/program?
3845 static int /* O - 1 = CGI, 0 = file */
3846 is_cgi(cupsd_client_t
*con
, /* I - Client connection */
3847 const char *filename
, /* I - Real filename */
3848 struct stat
*filestats
, /* I - File information */
3849 mime_type_t
*type
) /* I - MIME type */
3851 const char *options
; /* Options on URL */
3855 * Get the options, if any...
3858 if ((options
= strchr(con
->uri
, '?')) != NULL
)
3861 cupsdSetStringf(&(con
->query_string
), "QUERY_STRING=%s", options
);
3865 * Check for known types...
3868 if (!type
|| strcasecmp(type
->super
, "application"))
3870 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3871 "is_cgi(con=%p(%d), filename=\"%s\", filestats=%p, "
3872 "type=%s/%s) = 0", con
, con
->http
.fd
, filename
, filestats
,
3873 type
? type
->super
: "unknown",
3874 type
? type
->type
: "unknown");
3878 if (!strcasecmp(type
->type
, "x-httpd-cgi") &&
3879 (filestats
->st_mode
& 0111))
3882 * "application/x-httpd-cgi" is a CGI script.
3885 cupsdSetString(&con
->command
, filename
);
3888 cupsdSetStringf(&con
->options
, " %s", options
);
3890 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3891 "is_cgi(con=%p(%d), filename=\"%s\", filestats=%p, "
3892 "type=%s/%s) = 1", con
, con
->http
.fd
, filename
, filestats
,
3893 type
? type
->super
: "unknown",
3894 type
? type
->type
: "unknown");
3898 else if (!strcasecmp(type
->type
, "x-httpd-java"))
3901 * "application/x-httpd-java" is a Java servlet.
3904 cupsdSetString(&con
->command
, CUPS_JAVA
);
3907 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3909 cupsdSetStringf(&con
->options
, " %s", filename
);
3911 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3912 "is_cgi(con=%p(%d), filename=\"%s\", filestats=%p, "
3913 "type=%s/%s) = 1", con
, con
->http
.fd
, filename
, filestats
,
3914 type
? type
->super
: "unknown",
3915 type
? type
->type
: "unknown");
3918 #endif /* HAVE_JAVA */
3920 else if (!strcasecmp(type
->type
, "x-httpd-perl"))
3923 * "application/x-httpd-perl" is a Perl page.
3926 cupsdSetString(&con
->command
, CUPS_PERL
);
3929 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3931 cupsdSetStringf(&con
->options
, " %s", filename
);
3933 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3934 "is_cgi(con=%p(%d), filename=\"%s\", filestats=%p, "
3935 "type=%s/%s) = 1", con
, con
->http
.fd
, filename
, filestats
,
3936 type
? type
->super
: "unknown",
3937 type
? type
->type
: "unknown");
3940 #endif /* HAVE_PERL */
3942 else if (!strcasecmp(type
->type
, "x-httpd-php"))
3945 * "application/x-httpd-php" is a PHP page.
3948 cupsdSetString(&con
->command
, CUPS_PHP
);
3951 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3953 cupsdSetStringf(&con
->options
, " %s", filename
);
3955 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3956 "is_cgi(con=%p(%d), filename=\"%s\", filestats=%p, "
3957 "type=%s/%s) = 1", con
, con
->http
.fd
, filename
, filestats
,
3958 type
? type
->super
: "unknown",
3959 type
? type
->type
: "unknown");
3962 #endif /* HAVE_PHP */
3964 else if (!strcasecmp(type
->type
, "x-httpd-python"))
3967 * "application/x-httpd-python" is a Python page.
3970 cupsdSetString(&con
->command
, CUPS_PYTHON
);
3973 cupsdSetStringf(&con
->options
, " %s %s", filename
, options
);
3975 cupsdSetStringf(&con
->options
, " %s", filename
);
3977 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3978 "is_cgi(con=%p(%d), filename=\"%s\", filestats=%p, "
3979 "type=%s/%s) = 1", con
, con
->http
.fd
, filename
, filestats
,
3980 type
? type
->super
: "unknown",
3981 type
? type
->type
: "unknown");
3984 #endif /* HAVE_PYTHON */
3986 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
3987 "is_cgi(con=%p(%d), filename=\"%s\", filestats=%p, "
3988 "type=%s/%s) = 0", con
, con
->http
.fd
, filename
, filestats
,
3989 type
? type
->super
: "unknown",
3990 type
? type
->type
: "unknown");
3996 * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. "..").
3999 static int /* O - 0 if relative, 1 if absolute */
4000 is_path_absolute(const char *path
) /* I - Input path */
4003 * Check for a leading slash...
4010 * Check for "/.." in the path...
4013 while ((path
= strstr(path
, "/..")) != NULL
)
4015 if (!path
[3] || path
[3] == '/')
4022 * If we haven't found any relative paths, return 1 indicating an
4032 * 'make_certificate()' - Make a self-signed SSL/TLS certificate.
4035 static int /* O - 1 on success, 0 on failure */
4036 make_certificate(cupsd_client_t
*con
) /* I - Client connection */
4038 #if defined(HAVE_LIBSSL) && defined(HAVE_WAITPID)
4039 int pid
, /* Process ID of command */
4040 status
; /* Status of command */
4041 char command
[1024], /* Command */
4042 *argv
[12], /* Command-line arguments */
4043 *envp
[MAX_ENV
+ 1], /* Environment variables */
4044 infofile
[1024], /* Type-in information for cert */
4045 seedfile
[1024]; /* Random number seed file */
4046 int envc
, /* Number of environment variables */
4047 bytes
; /* Bytes written */
4048 cups_file_t
*fp
; /* Seed/info file */
4049 int infofd
; /* Info file descriptor */
4053 * Run the "openssl" command to seed the random number generator and
4054 * generate a self-signed certificate that is good for 10 years:
4056 * openssl rand -rand seedfile 1
4058 * openssl req -new -x509 -keyout ServerKey \
4059 * -out ServerCertificate -days 3650 -nodes
4061 * The seeding step is crucial in ensuring that the openssl command
4062 * does not block on systems without sufficient entropy...
4065 if (!cupsFileFind("openssl", getenv("PATH"), 1, command
, sizeof(command
)))
4067 cupsdLogMessage(CUPSD_LOG_ERROR
,
4068 "No SSL certificate and openssl command not found!");
4072 if (access("/dev/urandom", 0))
4075 * If the system doesn't provide /dev/urandom, then any random source
4076 * will probably be blocking-style, so generate some random data to
4077 * use as a seed for the certificate. Note that we have already
4078 * seeded the random number generator in cupsdInitCerts()...
4081 cupsdLogMessage(CUPSD_LOG_INFO
,
4082 "Seeding the random number generator...");
4085 * Write the seed file...
4088 if ((fp
= cupsTempFile2(seedfile
, sizeof(seedfile
))) == NULL
)
4090 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to create seed file %s - %s",
4091 seedfile
, strerror(errno
));
4095 for (bytes
= 0; bytes
< 262144; bytes
++)
4096 cupsFilePutChar(fp
, random());
4101 * Run the openssl command to seed its random number generator...
4104 argv
[0] = "openssl";
4111 envc
= cupsdLoadEnv(envp
, MAX_ENV
);
4114 if (!cupsdStartProcess(command
, argv
, envp
, -1, -1, -1, -1, -1, 1, NULL
,
4121 while (waitpid(pid
, &status
, 0) < 0)
4128 cupsdFinishProcess(pid
, command
, sizeof(command
), NULL
);
4131 * Remove the seed file, as it is no longer needed...
4138 if (WIFEXITED(status
))
4139 cupsdLogMessage(CUPSD_LOG_ERROR
,
4140 "Unable to seed random number generator - "
4141 "the openssl command stopped with status %d!",
4142 WEXITSTATUS(status
));
4144 cupsdLogMessage(CUPSD_LOG_ERROR
,
4145 "Unable to seed random number generator - "
4146 "the openssl command crashed on signal %d!",
4154 * Create a file with the certificate information fields...
4156 * Note: This assumes that the default questions are asked by the openssl
4160 if ((fp
= cupsTempFile2(infofile
, sizeof(infofile
))) == NULL
)
4162 cupsdLogMessage(CUPSD_LOG_ERROR
,
4163 "Unable to create certificate information file %s - %s",
4164 infofile
, strerror(errno
));
4168 cupsFilePrintf(fp
, ".\n.\n.\n%s\n.\n%s\n%s\n",
4169 ServerName
, ServerName
, ServerAdmin
);
4172 cupsdLogMessage(CUPSD_LOG_INFO
,
4173 "Generating SSL server key and certificate...");
4175 argv
[0] = "openssl";
4179 argv
[4] = "-keyout";
4180 argv
[5] = ServerKey
;
4182 argv
[7] = ServerCertificate
;
4185 argv
[10] = "-nodes";
4188 cupsdLoadEnv(envp
, MAX_ENV
);
4190 infofd
= open(infofile
, O_RDONLY
);
4192 if (!cupsdStartProcess(command
, argv
, envp
, infofd
, -1, -1, -1, -1, 1, NULL
,
4203 while (waitpid(pid
, &status
, 0) < 0)
4210 cupsdFinishProcess(pid
, command
, sizeof(command
), NULL
);
4214 if (WIFEXITED(status
))
4215 cupsdLogMessage(CUPSD_LOG_ERROR
,
4216 "Unable to create SSL server key and certificate - "
4217 "the openssl command stopped with status %d!",
4218 WEXITSTATUS(status
));
4220 cupsdLogMessage(CUPSD_LOG_ERROR
,
4221 "Unable to create SSL server key and certificate - "
4222 "the openssl command crashed on signal %d!",
4227 cupsdLogMessage(CUPSD_LOG_INFO
, "Created SSL server key file \"%s\"...",
4229 cupsdLogMessage(CUPSD_LOG_INFO
,
4230 "Created SSL server certificate file \"%s\"...",
4236 #elif defined(HAVE_GNUTLS)
4237 gnutls_x509_crt crt
; /* Self-signed certificate */
4238 gnutls_x509_privkey key
; /* Encryption key */
4239 cups_lang_t
*language
; /* Default language info */
4240 cups_file_t
*fp
; /* Key/cert file */
4241 unsigned char buffer
[8192]; /* Buffer for x509 data */
4242 size_t bytes
; /* Number of bytes of data */
4243 unsigned char serial
[4]; /* Serial number buffer */
4244 time_t curtime
; /* Current time */
4245 int result
; /* Result of GNU TLS calls */
4249 * Create the encryption key...
4252 cupsdLogMessage(CUPSD_LOG_INFO
, "Generating SSL server key...");
4254 gnutls_x509_privkey_init(&key
);
4255 gnutls_x509_privkey_generate(key
, GNUTLS_PK_RSA
, 2048, 0);
4261 bytes
= sizeof(buffer
);
4263 if ((result
= gnutls_x509_privkey_export(key
, GNUTLS_X509_FMT_PEM
,
4264 buffer
, &bytes
)) < 0)
4266 cupsdLogMessage(CUPSD_LOG_ERROR
, "Unable to export SSL server key - %s",
4267 gnutls_strerror(result
));
4268 gnutls_x509_privkey_deinit(key
);
4271 else if ((fp
= cupsFileOpen(ServerKey
, "w")) != NULL
)
4273 cupsFileWrite(fp
, (char *)buffer
, bytes
);
4276 cupsdLogMessage(CUPSD_LOG_INFO
, "Created SSL server key file \"%s\"...",
4281 cupsdLogMessage(CUPSD_LOG_ERROR
,
4282 "Unable to create SSL server key file \"%s\" - %s",
4283 ServerKey
, strerror(errno
));
4284 gnutls_x509_privkey_deinit(key
);
4289 * Create the self-signed certificate...
4292 cupsdLogMessage(CUPSD_LOG_INFO
, "Generating self-signed SSL certificate...");
4294 language
= cupsLangDefault();
4295 curtime
= time(NULL
);
4296 serial
[0] = curtime
>> 24;
4297 serial
[1] = curtime
>> 16;
4298 serial
[2] = curtime
>> 8;
4299 serial
[3] = curtime
;
4301 gnutls_x509_crt_init(&crt
);
4302 if (strlen(language
->language
) == 5)
4303 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_COUNTRY_NAME
, 0,
4304 language
->language
+ 3, 2);
4306 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_COUNTRY_NAME
, 0,
4308 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_COMMON_NAME
, 0,
4309 ServerName
, strlen(ServerName
));
4310 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_ORGANIZATION_NAME
, 0,
4311 ServerName
, strlen(ServerName
));
4312 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_ORGANIZATIONAL_UNIT_NAME
,
4314 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_STATE_OR_PROVINCE_NAME
, 0,
4316 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_X520_LOCALITY_NAME
, 0,
4318 gnutls_x509_crt_set_dn_by_oid(crt
, GNUTLS_OID_PKCS9_EMAIL
, 0,
4319 ServerAdmin
, strlen(ServerAdmin
));
4320 gnutls_x509_crt_set_key(crt
, key
);
4321 gnutls_x509_crt_set_serial(crt
, serial
, sizeof(serial
));
4322 gnutls_x509_crt_set_activation_time(crt
, curtime
);
4323 gnutls_x509_crt_set_expiration_time(crt
, curtime
+ 10 * 365 * 86400);
4324 gnutls_x509_crt_set_ca_status(crt
, 0);
4325 gnutls_x509_crt_set_subject_alternative_name(crt
, GNUTLS_SAN_DNSNAME
,
4327 gnutls_x509_crt_set_key_purpose_oid(crt
, GNUTLS_KP_TLS_WWW_SERVER
, 0);
4328 gnutls_x509_crt_set_key_usage(crt
, GNUTLS_KEY_KEY_ENCIPHERMENT
);
4329 gnutls_x509_crt_set_version(crt
, 3);
4331 bytes
= sizeof(buffer
);
4332 if (gnutls_x509_crt_get_key_id(crt
, 0, buffer
, &bytes
) >= 0)
4333 gnutls_x509_crt_set_subject_key_id(crt
, buffer
, bytes
);
4335 gnutls_x509_crt_sign(crt
, crt
, key
);
4341 bytes
= sizeof(buffer
);
4342 if ((result
= gnutls_x509_crt_export(crt
, GNUTLS_X509_FMT_PEM
,
4343 buffer
, &bytes
)) < 0)
4344 cupsdLogMessage(CUPSD_LOG_ERROR
,
4345 "Unable to export SSL server certificate - %s",
4346 gnutls_strerror(result
));
4347 else if ((fp
= cupsFileOpen(ServerCertificate
, "w")) != NULL
)
4349 cupsFileWrite(fp
, (char *)buffer
, bytes
);
4352 cupsdLogMessage(CUPSD_LOG_INFO
,
4353 "Created SSL server certificate file \"%s\"...",
4357 cupsdLogMessage(CUPSD_LOG_ERROR
,
4358 "Unable to create SSL server certificate file \"%s\" - %s",
4359 ServerCertificate
, strerror(errno
));
4365 gnutls_x509_crt_deinit(crt
);
4366 gnutls_x509_privkey_deinit(key
);
4370 #elif defined(HAVE_CDSASSL) && defined(HAVE_WAITPID)
4371 int pid
, /* Process ID of command */
4372 status
; /* Status of command */
4373 char command
[1024], /* Command */
4374 *argv
[4], /* Command-line arguments */
4375 *envp
[MAX_ENV
+ 1], /* Environment variables */
4376 keychain
[1024], /* Keychain argument */
4377 infofile
[1024]; /* Type-in information for cert */
4378 cups_file_t
*fp
; /* Seed/info file */
4379 int infofd
; /* Info file descriptor */
4383 * Run the "certtool" command to generate a self-signed certificate...
4386 if (!cupsFileFind("certtool", getenv("PATH"), 1, command
, sizeof(command
)))
4388 cupsdLogMessage(CUPSD_LOG_ERROR
,
4389 "No SSL certificate and certtool command not found!");
4394 * Create a file with the certificate information fields...
4396 * Note: This assumes that the default questions are asked by the certtool
4400 if ((fp
= cupsTempFile2(infofile
, sizeof(infofile
))) == NULL
)
4402 cupsdLogMessage(CUPSD_LOG_ERROR
,
4403 "Unable to create certificate information file %s - %s",
4404 infofile
, strerror(errno
));
4408 cupsFilePrintf(fp
, "%s\nr\n\ny\nb\ns\ny\n%s\n\n\n\n\n%s\ny\n",
4409 con
->servername
, con
->servername
, ServerAdmin
);
4412 cupsdLogMessage(CUPSD_LOG_INFO
,
4413 "Generating SSL server key and certificate...");
4415 snprintf(keychain
, sizeof(keychain
), "k=%s", ServerCertificate
);
4417 argv
[0] = "certtool";
4422 cupsdLoadEnv(envp
, MAX_ENV
);
4424 infofd
= open(infofile
, O_RDONLY
);
4426 if (!cupsdStartProcess(command
, argv
, envp
, infofd
, -1, -1, -1, -1, 1, NULL
,
4437 while (waitpid(pid
, &status
, 0) < 0)
4444 cupsdFinishProcess(pid
, command
, sizeof(command
), NULL
);
4448 if (WIFEXITED(status
))
4449 cupsdLogMessage(CUPSD_LOG_ERROR
,
4450 "Unable to create SSL server key and certificate - "
4451 "the certtool command stopped with status %d!",
4452 WEXITSTATUS(status
));
4454 cupsdLogMessage(CUPSD_LOG_ERROR
,
4455 "Unable to create SSL server key and certificate - "
4456 "the certtool command crashed on signal %d!",
4461 cupsdLogMessage(CUPSD_LOG_INFO
,
4462 "Created SSL server certificate file \"%s\"...",
4470 #endif /* HAVE_LIBSSL && HAVE_WAITPID */
4472 #endif /* HAVE_SSL */
4476 * 'pipe_command()' - Pipe the output of a command to the remote client.
4479 static int /* O - Process ID */
4480 pipe_command(cupsd_client_t
*con
, /* I - Client connection */
4481 int infile
, /* I - Standard input for command */
4482 int *outfile
, /* O - Standard output for command */
4483 char *command
, /* I - Command to run */
4484 char *options
, /* I - Options for command */
4485 int root
) /* I - Run as root? */
4487 int i
; /* Looping var */
4488 int pid
; /* Process ID */
4489 char *commptr
, /* Command string pointer */
4490 commch
; /* Command string character */
4491 char *uriptr
; /* URI string pointer */
4492 int fds
[2]; /* Pipe FDs */
4493 int argc
; /* Number of arguments */
4494 int envc
; /* Number of environment variables */
4495 char argbuf
[10240], /* Argument buffer */
4496 *argv
[100], /* Argument strings */
4497 *envp
[MAX_ENV
+ 20]; /* Environment variables */
4498 char auth_type
[256], /* CUPSD_AUTH_TYPE environment variable */
4499 content_length
[1024], /* CONTENT_LENGTH environment variable */
4500 content_type
[1024], /* CONTENT_TYPE environment variable */
4501 http_cookie
[32768], /* HTTP_COOKIE environment variable */
4502 http_referer
[1024], /* HTTP_REFERER environment variable */
4503 http_user_agent
[1024], /* HTTP_USER_AGENT environment variable */
4504 lang
[1024], /* LANG environment variable */
4505 path_info
[1024], /* PATH_INFO environment variable */
4506 remote_addr
[1024], /* REMOTE_ADDR environment variable */
4507 remote_host
[1024], /* REMOTE_HOST environment variable */
4508 remote_user
[1024], /* REMOTE_USER environment variable */
4509 script_filename
[1024], /* SCRIPT_FILENAME environment variable */
4510 script_name
[1024], /* SCRIPT_NAME environment variable */
4511 server_name
[1024], /* SERVER_NAME environment variable */
4512 server_port
[1024]; /* SERVER_PORT environment variable */
4513 ipp_attribute_t
*attr
; /* attributes-natural-language attribute */
4514 void *ccache
= NULL
; /* Kerberos credentials */
4518 * Parse a copy of the options string, which is of the form:
4520 * argument+argument+argument
4521 * ?argument+argument+argument
4522 * param=value¶m=value
4523 * ?param=value¶m=value
4524 * /name?argument+argument+argument
4525 * /name?param=value¶m=value
4527 * If the string contains an "=" character after the initial name,
4528 * then we treat it as a HTTP GET form request and make a copy of
4529 * the remaining string for the environment variable.
4531 * The string is always parsed out as command-line arguments, to
4532 * be consistent with Apache...
4535 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
4536 "pipe_command(con=%p(%d), infile=%d, outfile=%p, "
4537 "command=\"%s\", options=\"%s\", root=%d)",
4538 con
, con
->http
.fd
, infile
, outfile
, command
,
4539 options
? options
: "(null)", root
);
4544 strlcpy(argbuf
, options
, sizeof(argbuf
));
4548 if (argbuf
[0] == '/')
4551 * Found some trailing path information, set PATH_INFO...
4554 if ((commptr
= strchr(argbuf
, '?')) == NULL
)
4555 commptr
= argbuf
+ strlen(argbuf
);
4559 snprintf(path_info
, sizeof(path_info
), "PATH_INFO=%s", argbuf
);
4565 path_info
[0] = '\0';
4567 if (*commptr
== ' ')
4571 if (*commptr
== '?' && con
->operation
== HTTP_GET
&& !con
->query_string
)
4574 cupsdSetStringf(&(con
->query_string
), "QUERY_STRING=%s", commptr
);
4581 argv
[argc
++] = commptr
;
4583 for (; *commptr
&& argc
< 99; commptr
++)
4586 * Break arguments whenever we see a + or space...
4589 if (*commptr
== ' ' || *commptr
== '+')
4591 while (*commptr
== ' ' || *commptr
== '+')
4595 * If we don't have a blank string, save it as another argument...
4600 argv
[argc
] = commptr
;
4606 else if (*commptr
== '%' && isxdigit(commptr
[1] & 255) &&
4607 isxdigit(commptr
[2] & 255))
4610 * Convert the %xx notation to the individual character.
4613 if (commptr
[1] >= '0' && commptr
[1] <= '9')
4614 *commptr
= (commptr
[1] - '0') << 4;
4616 *commptr
= (tolower(commptr
[1]) - 'a' + 10) << 4;
4618 if (commptr
[2] >= '0' && commptr
[2] <= '9')
4619 *commptr
|= commptr
[2] - '0';
4621 *commptr
|= tolower(commptr
[2]) - 'a' + 10;
4623 _cups_strcpy(commptr
+ 1, commptr
+ 3);
4626 * Check for a %00 and break if that is the case...
4638 * Setup the environment variables as needed...
4641 if (con
->username
[0])
4643 snprintf(auth_type
, sizeof(auth_type
), "CUPSD_AUTH_TYPE=%s",
4644 httpGetField(HTTP(con
), HTTP_FIELD_AUTHORIZATION
));
4646 if ((uriptr
= strchr(auth_type
+ 10, ' ')) != NULL
)
4650 auth_type
[0] = '\0';
4653 (attr
= ippFindAttribute(con
->request
, "attributes-natural-language",
4654 IPP_TAG_LANGUAGE
)) != NULL
)
4656 switch (strlen(attr
->values
[0].string
.text
))
4660 * This is an unknown or badly formatted language code; use
4661 * the POSIX locale...
4664 strcpy(lang
, "LANG=C");
4669 * Just the language code (ll)...
4672 snprintf(lang
, sizeof(lang
), "LANG=%s.UTF8",
4673 attr
->values
[0].string
.text
);
4678 * Language and country code (ll-cc)...
4681 snprintf(lang
, sizeof(lang
), "LANG=%c%c_%c%c.UTF8",
4682 attr
->values
[0].string
.text
[0],
4683 attr
->values
[0].string
.text
[1],
4684 toupper(attr
->values
[0].string
.text
[3] & 255),
4685 toupper(attr
->values
[0].string
.text
[4] & 255));
4689 else if (con
->language
)
4690 snprintf(lang
, sizeof(lang
), "LANG=%s.UTF8", con
->language
->language
);
4692 strcpy(lang
, "LANG=C");
4694 strcpy(remote_addr
, "REMOTE_ADDR=");
4695 httpAddrString(con
->http
.hostaddr
, remote_addr
+ 12,
4696 sizeof(remote_addr
) - 12);
4698 snprintf(remote_host
, sizeof(remote_host
), "REMOTE_HOST=%s",
4699 con
->http
.hostname
);
4701 snprintf(script_name
, sizeof(script_name
), "SCRIPT_NAME=%s", con
->uri
);
4702 if ((uriptr
= strchr(script_name
, '?')) != NULL
)
4705 snprintf(script_filename
, sizeof(script_filename
), "SCRIPT_FILENAME=%s%s",
4706 DocumentRoot
, script_name
+ 12);
4708 sprintf(server_port
, "SERVER_PORT=%d", con
->serverport
);
4710 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s",
4713 envc
= cupsdLoadEnv(envp
, (int)(sizeof(envp
) / sizeof(envp
[0])));
4716 envp
[envc
++] = auth_type
;
4718 envp
[envc
++] = lang
;
4719 envp
[envc
++] = "REDIRECT_STATUS=1";
4720 envp
[envc
++] = "GATEWAY_INTERFACE=CGI/1.1";
4721 envp
[envc
++] = server_name
;
4722 envp
[envc
++] = server_port
;
4723 envp
[envc
++] = remote_addr
;
4724 envp
[envc
++] = remote_host
;
4725 envp
[envc
++] = script_name
;
4726 envp
[envc
++] = script_filename
;
4729 envp
[envc
++] = path_info
;
4731 if (con
->username
[0])
4733 snprintf(remote_user
, sizeof(remote_user
), "REMOTE_USER=%s", con
->username
);
4735 envp
[envc
++] = remote_user
;
4738 * Save Kerberos credentials, if any...
4743 ccache
= cupsdCopyKrb5Creds(con
);
4744 #endif /* HAVE_GSSAPI */
4747 if (con
->http
.version
== HTTP_1_1
)
4748 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.1";
4749 else if (con
->http
.version
== HTTP_1_0
)
4750 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.0";
4752 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/0.9";
4754 if (con
->http
.cookie
)
4756 snprintf(http_cookie
, sizeof(http_cookie
), "HTTP_COOKIE=%s",
4758 envp
[envc
++] = http_cookie
;
4761 if (con
->http
.fields
[HTTP_FIELD_USER_AGENT
][0])
4763 snprintf(http_user_agent
, sizeof(http_user_agent
), "HTTP_USER_AGENT=%s",
4764 con
->http
.fields
[HTTP_FIELD_USER_AGENT
]);
4765 envp
[envc
++] = http_user_agent
;
4768 if (con
->http
.fields
[HTTP_FIELD_REFERER
][0])
4770 snprintf(http_referer
, sizeof(http_referer
), "HTTP_REFERER=%s",
4771 con
->http
.fields
[HTTP_FIELD_REFERER
]);
4772 envp
[envc
++] = http_referer
;
4775 if (con
->operation
== HTTP_GET
)
4777 envp
[envc
++] = "REQUEST_METHOD=GET";
4779 if (con
->query_string
)
4782 * Add GET form variables after ?...
4785 envp
[envc
++] = con
->query_string
;
4788 envp
[envc
++] = "QUERY_STRING=";
4792 sprintf(content_length
, "CONTENT_LENGTH=" CUPS_LLFMT
,
4793 CUPS_LLCAST con
->bytes
);
4794 snprintf(content_type
, sizeof(content_type
), "CONTENT_TYPE=%s",
4795 con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
4797 envp
[envc
++] = "REQUEST_METHOD=POST";
4798 envp
[envc
++] = content_length
;
4799 envp
[envc
++] = content_type
;
4803 * Tell the CGI if we are using encryption...
4807 envp
[envc
++] = "HTTPS=ON";
4810 * Terminate the environment array...
4815 if (LogLevel
>= CUPSD_LOG_DEBUG
)
4817 for (i
= 0; i
< argc
; i
++)
4818 cupsdLogMessage(CUPSD_LOG_DEBUG
,
4819 "[CGI] argv[%d] = \"%s\"", i
, argv
[i
]);
4820 for (i
= 0; i
< envc
; i
++)
4821 cupsdLogMessage(CUPSD_LOG_DEBUG
,
4822 "[CGI] envp[%d] = \"%s\"", i
, envp
[i
]);
4826 * Create a pipe for the output...
4829 if (cupsdOpenPipe(fds
))
4831 cupsdLogMessage(CUPSD_LOG_ERROR
, "[CGI] Unable to create pipe for %s - %s",
4832 argv
[0], strerror(errno
));
4837 * Then execute the command...
4840 if (cupsdStartProcess(command
, argv
, envp
, infile
, fds
[1], CGIPipes
[1],
4841 -1, -1, root
, DefaultProfile
, NULL
, &pid
) < 0)
4844 * Error - can't fork!
4847 cupsdLogMessage(CUPSD_LOG_ERROR
, "[CGI] Unable to start %s - %s", argv
[0],
4850 cupsdClosePipe(fds
);
4856 * Fork successful - return the PID...
4859 if (con
->username
[0])
4860 cupsdAddCert(pid
, con
->username
, ccache
);
4862 cupsdLogMessage(CUPSD_LOG_DEBUG
, "[CGI] Started %s (PID %d)", command
, pid
);
4873 * 'valid_host()' - Is the Host: field valid?
4876 static int /* O - 1 if valid, 0 if not */
4877 valid_host(cupsd_client_t
*con
) /* I - Client connection */
4879 cupsd_alias_t
*a
; /* Current alias */
4880 cupsd_netif_t
*netif
; /* Current network interface */
4881 const char *host
, /* Host field */
4882 *end
; /* End character */
4885 host
= con
->http
.fields
[HTTP_FIELD_HOST
];
4887 if (httpAddrLocalhost(con
->http
.hostaddr
))
4890 * Only allow "localhost" or the equivalent IPv4 or IPv6 numerical
4891 * addresses when accessing CUPS via the loopback interface...
4894 return (!strcasecmp(host
, "localhost") ||
4895 !strncasecmp(host
, "localhost:", 10) ||
4896 !strcasecmp(host
, "localhost.") ||
4897 !strncasecmp(host
, "localhost.:", 11) ||
4899 !strcasecmp(host
, "localhost.localdomain") ||
4900 !strncasecmp(host
, "localhost.localdomain:", 22) ||
4901 #endif /* __linux */
4902 !strcmp(host
, "127.0.0.1") ||
4903 !strncmp(host
, "127.0.0.1:", 10) ||
4904 !strcmp(host
, "[::1]") ||
4905 !strncmp(host
, "[::1]:", 6));
4910 * Check if the hostname is something.local (Bonjour); if so, allow it.
4913 if ((end
= strrchr(host
, '.')) != NULL
&&
4914 (!strcasecmp(end
, ".local") || !strncasecmp(end
, ".local:", 7) ||
4915 !strcasecmp(end
, ".local.") || !strncasecmp(end
, ".local.:", 8)))
4917 #endif /* HAVE_DNSSD */
4920 * Check if the hostname is an IP address...
4923 if (isdigit(*host
& 255) || *host
== '[')
4926 * Possible IPv4/IPv6 address...
4929 char temp
[1024], /* Temporary string */
4930 *ptr
; /* Pointer into temporary string */
4931 http_addrlist_t
*addrlist
; /* List of addresses */
4934 strlcpy(temp
, host
, sizeof(temp
));
4935 if ((ptr
= strrchr(temp
, ':')) != NULL
&& !strchr(ptr
, ']'))
4936 *ptr
= '\0'; /* Strip :port from host value */
4938 if ((addrlist
= httpAddrGetList(temp
, AF_UNSPEC
, NULL
)) != NULL
)
4941 * Good IPv4/IPv6 address...
4944 httpAddrFreeList(addrlist
);
4950 * Check for (alias) name matches...
4953 for (a
= (cupsd_alias_t
*)cupsArrayFirst(ServerAlias
);
4955 a
= (cupsd_alias_t
*)cupsArrayNext(ServerAlias
))
4958 * "ServerAlias *" allows all host values through...
4961 if (!strcmp(a
->name
, "*"))
4964 if (!strncasecmp(host
, a
->name
, a
->namelen
))
4967 * Prefix matches; check the character at the end - it must be ":", ".",
4971 end
= host
+ a
->namelen
;
4973 if (!*end
|| *end
== ':' || (*end
== '.' && (!end
[1] || end
[1] == ':')))
4979 for (a
= (cupsd_alias_t
*)cupsArrayFirst(DNSSDAlias
);
4981 a
= (cupsd_alias_t
*)cupsArrayNext(DNSSDAlias
))
4984 * "ServerAlias *" allows all host values through...
4987 if (!strcmp(a
->name
, "*"))
4990 if (!strncasecmp(host
, a
->name
, a
->namelen
))
4993 * Prefix matches; check the character at the end - it must be ":", ".",
4997 end
= host
+ a
->namelen
;
4999 if (!*end
|| *end
== ':' || (*end
== '.' && (!end
[1] || end
[1] == ':')))
5003 #endif /* HAVE_DNSSD */
5006 * Check for interface hostname matches...
5009 for (netif
= (cupsd_netif_t
*)cupsArrayFirst(NetIFList
);
5011 netif
= (cupsd_netif_t
*)cupsArrayNext(NetIFList
))
5013 if (!strncasecmp(host
, netif
->hostname
, netif
->hostlen
))
5016 * Prefix matches; check the character at the end - it must be ":", ".",
5020 end
= host
+ netif
->hostlen
;
5022 if (!*end
|| *end
== ':' || (*end
== '.' && (!end
[1] || end
[1] == ':')))
5032 * 'write_file()' - Send a file via HTTP.
5035 static int /* O - 0 on failure, 1 on success */
5036 write_file(cupsd_client_t
*con
, /* I - Client connection */
5037 http_status_t code
, /* I - HTTP status */
5038 char *filename
, /* I - Filename */
5039 char *type
, /* I - File type */
5040 struct stat
*filestats
) /* O - File information */
5042 con
->file
= open(filename
, O_RDONLY
);
5044 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
5045 "write_file(con=%p(%d), code=%d, filename=\"%s\" (%d), "
5046 "type=\"%s\", filestats=%p)", con
, con
->http
.fd
,
5047 code
, filename
, con
->file
, type
? type
: "(null)", filestats
);
5052 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
5056 if (!cupsdSendHeader(con
, code
, type
, CUPSD_AUTH_NONE
))
5059 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
5060 httpGetDateString(filestats
->st_mtime
)) < 0)
5062 if (httpPrintf(HTTP(con
), "Content-Length: " CUPS_LLFMT
"\r\n",
5063 CUPS_LLCAST filestats
->st_size
) < 0)
5065 if (httpPrintf(HTTP(con
), "\r\n") < 0)
5068 if (cupsdFlushHeader(con
) < 0)
5071 con
->http
.data_encoding
= HTTP_ENCODE_LENGTH
;
5072 con
->http
.data_remaining
= filestats
->st_size
;
5074 if (con
->http
.data_remaining
<= INT_MAX
)
5075 con
->http
._data_remaining
= con
->http
.data_remaining
;
5077 con
->http
._data_remaining
= INT_MAX
;
5079 cupsdAddSelect(con
->http
.fd
, (cupsd_selfunc_t
)cupsdReadClient
,
5080 (cupsd_selfunc_t
)cupsdWriteClient
, con
);
5087 * 'write_pipe()' - Flag that data is available on the CGI pipe.
5091 write_pipe(cupsd_client_t
*con
) /* I - Client connection */
5093 cupsdLogMessage(CUPSD_LOG_DEBUG2
,
5094 "write_pipe(con=%p(%d)) CGI output on fd %d",
5095 con
, con
->http
.fd
, con
->file
);
5097 con
->file_ready
= 1;
5099 cupsdRemoveSelect(con
->file
);
5100 cupsdAddSelect(con
->http
.fd
, NULL
, (cupsd_selfunc_t
)cupsdWriteClient
, con
);
5105 * End of "$Id: client.c 7950 2008-09-17 00:21:59Z mike $".