2 * "$Id: client.c,v 1.91.2.91 2004/08/06 13:57:05 mike Exp $"
4 * Client routines for the Common UNIX Printing System (CUPS) scheduler.
6 * Copyright 1997-2004 by Easy Software Products, all rights reserved.
8 * These coded instructions, statements, and computer programs are the
9 * property of Easy Software Products and are protected by Federal
10 * copyright law. Distribution and use rights are outlined in the file
11 * "LICENSE.txt" which should have been included with this file. If this
12 * file is missing or damaged please contact Easy Software Products
15 * Attn: CUPS Licensing Information
16 * Easy Software Products
17 * 44141 Airport View Drive, Suite 204
18 * Hollywood, Maryland 20636-3142 USA
20 * Voice: (301) 373-9600
21 * EMail: cups-info@cups.org
22 * WWW: http://www.cups.org
26 * AcceptClient() - Accept a new client.
27 * CloseAllClients() - Close all remote clients immediately.
28 * CloseClient() - Close a remote client.
29 * EncryptClient() - Enable encryption for the client...
30 * IsCGI() - Is the resource a CGI script/program?
31 * ReadClient() - Read data from a client.
32 * SendCommand() - Send output from a command via HTTP.
33 * SendError() - Send an error message via HTTP.
34 * SendFile() - Send a file via HTTP.
35 * SendHeader() - Send an HTTP request.
36 * UpdateCGI() - Read status messages from CGI scripts and programs.
37 * WriteClient() - Write data to a client as needed.
38 * check_if_modified() - Decode an "If-Modified-Since" line.
39 * decode_auth() - Decode an authorization string.
40 * get_file() - Get a filename and state info.
41 * install_conf_file() - Install a configuration file.
42 * pipe_command() - Pipe the output of a command to the remote client.
43 * CDSAReadFunc() - Read function for CDSA decryption code.
44 * CDSAWriteFunc() - Write function for CDSA encryption code.
48 * Include necessary headers...
51 #include <cups/http-private.h>
60 static int check_if_modified(client_t
*con
,
61 struct stat
*filestats
);
62 static void decode_auth(client_t
*con
);
63 static char *get_file(client_t
*con
, struct stat
*filestats
,
64 char *filename
, int len
);
65 static http_status_t
install_conf_file(client_t
*con
);
66 static int pipe_command(client_t
*con
, int infile
, int *outfile
,
67 char *command
, char *options
);
70 static OSStatus
CDSAReadFunc(SSLConnectionRef connection
, void *data
,
72 static OSStatus
CDSAWriteFunc(SSLConnectionRef connection
,
73 const void *data
, size_t *dataLength
);
74 #endif /* HAVE_CDSASSL */
78 * 'AcceptClient()' - Accept a new client.
82 AcceptClient(listener_t
*lis
) /* I - Listener socket */
84 int i
; /* Looping var */
85 int count
; /* Count of connections on a host */
86 int val
; /* Parameter value */
87 client_t
*con
; /* New client pointer */
88 const struct hostent
*host
; /* Host entry for address */
89 char *hostname
;/* Hostname for address */
90 http_addr_t temp
; /* Temporary address variable */
91 static time_t last_dos
= 0;
92 /* Time of last DoS attack */
95 LogMessage(L_DEBUG2
, "AcceptClient(lis=%p) %d NumClients = %d",
96 lis
, lis
->fd
, NumClients
);
99 * Make sure we don't have a full set of clients already...
102 if (NumClients
== MaxClients
)
106 * Get a pointer to the next available client...
109 con
= Clients
+ NumClients
;
111 memset(con
, 0, sizeof(client_t
));
112 con
->http
.activity
= time(NULL
);
116 * Accept the client and get the remote address...
119 val
= sizeof(struct sockaddr_in
);
121 if ((con
->http
.fd
= accept(lis
->fd
, (struct sockaddr
*)&(con
->http
.hostaddr
),
124 LogMessage(L_ERROR
, "Unable to accept client connection - %s.",
130 if (lis
->address
.addr
.sa_family
== AF_INET6
)
131 con
->http
.hostaddr
.ipv6
.sin6_port
= lis
->address
.ipv6
.sin6_port
;
133 #endif /* AF_INET6 */
134 con
->http
.hostaddr
.ipv4
.sin_port
= lis
->address
.ipv4
.sin_port
;
137 * Check the number of clients on the same address...
140 for (i
= 0, count
= 0; i
< NumClients
; i
++)
141 if (memcmp(&(Clients
[i
].http
.hostaddr
), &(con
->http
.hostaddr
),
142 sizeof(con
->http
.hostaddr
)) == 0)
145 if (count
>= MaxClientsPerHost
)
149 if (count
>= MaxClientsPerHost
)
151 if ((time(NULL
) - last_dos
) >= 60)
153 last_dos
= time(NULL
);
154 LogMessage(L_WARN
, "Possible DoS attack - more than %d clients connecting from %s!",
155 MaxClientsPerHost
, Clients
[i
].http
.hostname
);
159 closesocket(con
->http
.fd
);
168 * Get the hostname or format the IP address as needed...
172 hostname
= httpAddrLookup(&(con
->http
.hostaddr
), con
->http
.hostname
,
173 sizeof(con
->http
.hostname
));
177 httpAddrString(&(con
->http
.hostaddr
), con
->http
.hostname
,
178 sizeof(con
->http
.hostname
));
181 if (httpAddrLocalhost(&(con
->http
.hostaddr
)))
184 * Map accesses from the loopback interface to "localhost"...
187 strlcpy(con
->http
.hostname
, "localhost", sizeof(con
->http
.hostname
));
189 else if (httpAddrEqual(&(con
->http
.hostaddr
), &ServerAddr
))
192 * Map accesses from the same host to the server name.
195 strlcpy(con
->http
.hostname
, ServerName
, sizeof(con
->http
.hostname
));
198 if (hostname
== NULL
&& HostNameLookups
== 2)
201 * Can't have an unresolved IP address with double-lookups enabled...
204 LogMessage(L_DEBUG2
, "AcceptClient: Closing connection %d...",
208 closesocket(con
->http
.fd
);
213 LogMessage(L_WARN
, "Name lookup failed - connection from %s closed!",
218 if (HostNameLookups
== 2)
221 * Do double lookups as needed...
224 if ((host
= httpGetHostByName(con
->http
.hostname
)) != NULL
)
227 * See if the hostname maps to the same IP address...
230 if (host
->h_addrtype
!= con
->http
.hostaddr
.addr
.sa_family
)
233 * Not the right type of address...
241 * Compare all of the addresses against this one...
244 for (i
= 0; host
->h_addr_list
[i
]; i
++)
246 httpAddrLoad(host
, 0, i
, &temp
);
248 if (httpAddrEqual(&(con
->http
.hostaddr
), &temp
))
252 if (!host
->h_addr_list
[i
])
260 * Can't have a hostname that doesn't resolve to the same IP address
261 * with double-lookups enabled...
264 LogMessage(L_DEBUG2
, "AcceptClient: Closing connection %d...",
268 closesocket(con
->http
.fd
);
273 LogMessage(L_WARN
, "IP lookup failed - connection from %s closed!",
280 if (con
->http
.hostaddr
.addr
.sa_family
== AF_INET6
)
281 LogMessage(L_DEBUG
, "AcceptClient: %d from %s:%d.", con
->http
.fd
,
282 con
->http
.hostname
, ntohs(con
->http
.hostaddr
.ipv6
.sin6_port
));
284 #endif /* AF_INET6 */
285 LogMessage(L_DEBUG
, "AcceptClient: %d from %s:%d.", con
->http
.fd
,
286 con
->http
.hostname
, ntohs(con
->http
.hostaddr
.ipv4
.sin_port
));
289 * Using TCP_NODELAY improves responsiveness, especially on systems
290 * with a slow loopback interface... Since we write large buffers
291 * when sending print files and requests, there shouldn't be any
292 * performance penalty for this...
296 setsockopt(con
->http
.fd
, IPPROTO_TCP
, TCP_NODELAY
, &val
, sizeof(val
));
300 * Close this file on all execs...
303 fcntl(con
->http
.fd
, F_SETFD
, FD_CLOEXEC
);
304 #endif /* FD_CLOEXEC */
307 * Add the socket to the select() input mask.
310 LogMessage(L_DEBUG2
, "AcceptClient: Adding fd %d to InputSet...",
312 FD_SET(con
->http
.fd
, InputSet
);
317 * Temporarily suspend accept()'s until we lose a client...
320 if (NumClients
== MaxClients
)
325 * See if we are connecting on a secure port...
328 if (lis
->encryption
== HTTP_ENCRYPT_ALWAYS
)
331 * https connection; go secure...
334 con
->http
.encryption
= HTTP_ENCRYPT_ALWAYS
;
338 #endif /* HAVE_SSL */
343 * 'CloseAllClients()' - Close all remote clients immediately.
347 CloseAllClients(void)
349 while (NumClients
> 0)
350 CloseClient(Clients
);
355 * 'CloseClient()' - Close a remote client.
358 int /* O - 1 if partial close, 0 if fully closed */
359 CloseClient(client_t
*con
) /* I - Client to close */
361 int partial
; /* Do partial close for SSL? */
362 #if defined(HAVE_LIBSSL)
363 SSL_CTX
*context
; /* Context for encryption */
364 SSL
*conn
; /* Connection for encryption */
365 unsigned long error
; /* Error code */
366 #elif defined(HAVE_GNUTLS)
367 http_tls_t
*conn
; /* TLS connection information */
368 int error
; /* Error code */
369 gnutls_certificate_server_credentials
*credentials
;
370 /* TLS credentials */
371 #endif /* HAVE_GNUTLS */
374 LogMessage(L_DEBUG
, "CloseClient: %d", con
->http
.fd
);
380 * Shutdown encryption as needed...
388 conn
= (SSL
*)(con
->http
.tls
);
389 context
= SSL_get_SSL_CTX(conn
);
391 switch (SSL_shutdown(conn
))
394 LogMessage(L_INFO
, "CloseClient: SSL shutdown successful!");
397 LogMessage(L_ERROR
, "CloseClient: Fatal error during SSL shutdown!");
399 while ((error
= ERR_get_error()) != 0)
400 LogMessage(L_ERROR
, "CloseClient: %s", ERR_error_string(error
, NULL
));
404 SSL_CTX_free(context
);
407 # elif defined(HAVE_GNUTLS)
408 conn
= (http_tls_t
*)(con
->http
.tls
);
409 credentials
= (gnutls_certificate_server_credentials
*)(conn
->credentials
);
411 error
= gnutls_bye(conn
->session
, GNUTLS_SHUT_WR
);
414 case GNUTLS_E_SUCCESS
:
415 LogMessage(L_INFO
, "CloseClient: SSL shutdown successful!");
418 LogMessage(L_ERROR
, "CloseClient: %s", gnutls_strerror(error
));
422 gnutls_deinit(conn
->session
);
423 gnutls_certificate_free_credentials(*credentials
);
427 # elif defined(HAVE_CDSASSL)
428 status
= SSLClose((SSLContextRef
)con
->http
.tls
);
429 SSLDisposeContext((SSLContextRef
)con
->http
.tls
);
430 # endif /* HAVE_LIBSSL */
432 con
->http
.tls
= NULL
;
434 #endif /* HAVE_SSL */
437 * Close the socket and clear the file from the input set for select()...
440 if (con
->http
.fd
> 0)
445 * Only do a partial close so that the encrypted client gets everything.
448 LogMessage(L_DEBUG2
, "CloseClient: Removing fd %d from OutputSet...",
450 shutdown(con
->http
.fd
, 0);
451 FD_CLR(con
->http
.fd
, OutputSet
);
456 * Shut the socket down fully...
459 LogMessage(L_DEBUG2
, "CloseClient: Removing fd %d from InputSet and OutputSet...",
462 FD_CLR(con
->http
.fd
, InputSet
);
463 FD_CLR(con
->http
.fd
, OutputSet
);
468 if (con
->pipe_pid
!= 0)
471 * Stop any CGI process...
474 LogMessage(L_DEBUG2
, "CloseClient: %d Killing process ID %d...",
475 con
->http
.fd
, con
->pipe_pid
);
476 kill(con
->pipe_pid
, SIGKILL
);
481 if (FD_ISSET(con
->file
, InputSet
))
483 LogMessage(L_DEBUG2
, "CloseClient: %d Removing fd %d from InputSet...",
484 con
->http
.fd
, con
->file
);
485 FD_CLR(con
->file
, InputSet
);
488 LogMessage(L_DEBUG2
, "CloseClient: %d Closing data file %d.",
489 con
->http
.fd
, con
->file
);
501 if (con
->http
.input_set
)
502 free(con
->http
.input_set
);
504 httpClearCookie(HTTP(con
));
506 ClearString(&con
->filename
);
507 ClearString(&con
->command
);
508 ClearString(&con
->options
);
512 ippDelete(con
->request
);
518 ippDelete(con
->response
);
519 con
->response
= NULL
;
524 cupsLangFree(con
->language
);
525 con
->language
= NULL
;
529 * Re-enable new client connections if we are going back under the
533 if (NumClients
== MaxClients
)
537 * Compact the list of clients as necessary...
542 if (con
< (Clients
+ NumClients
))
543 memmove(con
, con
+ 1, (Clients
+ NumClients
- con
) * sizeof(client_t
));
551 * 'EncryptClient()' - Enable encryption for the client...
554 int /* O - 1 on success, 0 on error */
555 EncryptClient(client_t
*con
) /* I - Client to encrypt */
557 #if defined HAVE_LIBSSL
558 SSL_CTX
*context
; /* Context for encryption */
559 SSL
*conn
; /* Connection for encryption */
560 unsigned long error
; /* Error code */
564 * Create the SSL context and accept the connection...
567 context
= SSL_CTX_new(SSLv23_server_method());
569 SSL_CTX_use_PrivateKey_file(context
, ServerKey
, SSL_FILETYPE_PEM
);
570 SSL_CTX_use_certificate_file(context
, ServerCertificate
, SSL_FILETYPE_PEM
);
572 conn
= SSL_new(context
);
574 SSL_set_fd(conn
, con
->http
.fd
);
575 if (SSL_accept(conn
) != 1)
577 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
580 while ((error
= ERR_get_error()) != 0)
581 LogMessage(L_ERROR
, "EncryptClient: %s", ERR_error_string(error
, NULL
));
583 SSL_CTX_free(context
);
588 LogMessage(L_DEBUG
, "EncryptClient: %d Connection from %s now encrypted.",
589 con
->http
.fd
, con
->http
.hostname
);
591 con
->http
.tls
= conn
;
594 #elif defined(HAVE_GNUTLS)
595 http_tls_t
*conn
; /* TLS session object */
596 int error
; /* Error code */
597 gnutls_certificate_server_credentials
*credentials
;
598 /* TLS credentials */
601 * Create the SSL object and perform the SSL handshake...
604 conn
= (http_tls_t
*)malloc(sizeof(gnutls_session
));
609 credentials
= (gnutls_certificate_server_credentials
*)
610 malloc(sizeof(gnutls_certificate_server_credentials
));
611 if (credentials
== NULL
)
613 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
615 LogMessage(L_ERROR
, "EncryptClient: %s", strerror(errno
));
621 gnutls_certificate_allocate_credentials(credentials
);
622 gnutls_certificate_set_x509_key_file(*credentials
, ServerCertificate
,
623 ServerKey
, GNUTLS_X509_FMT_PEM
);
625 gnutls_init(&(conn
->session
), GNUTLS_SERVER
);
626 gnutls_set_default_priority(conn
->session
);
627 gnutls_credentials_set(conn
->session
, GNUTLS_CRD_CERTIFICATE
, *credentials
);
628 gnutls_transport_set_ptr(conn
->session
, con
->http
.fd
);
630 error
= gnutls_handshake(conn
->session
);
632 if (error
!= GNUTLS_E_SUCCESS
)
634 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
636 LogMessage(L_ERROR
, "EncryptClient: %s", gnutls_strerror(error
));
638 gnutls_deinit(conn
->session
);
639 gnutls_certificate_free_credentials(*credentials
);
645 LogMessage(L_DEBUG
, "EncryptClient: %d Connection from %s now encrypted.",
646 con
->http
.fd
, con
->http
.hostname
);
648 conn
->credentials
= credentials
;
649 con
->http
.tls
= conn
;
652 #elif defined(HAVE_CDSASSL)
653 OSStatus error
; /* Error info */
654 SSLContextRef conn
; /* New connection */
655 SSLProtocol tryVersion
; /* Protocol version */
656 const char *hostName
; /* Local hostname */
657 int allowExpired
; /* Allow expired certificates? */
658 int allowAnyRoot
; /* Allow any root certificate? */
659 SSLProtocol
*negVersion
; /* Negotiated protocol version */
660 SSLCipherSuite
*negCipher
; /* Negotiated cypher */
661 CFArrayRef
*peerCerts
; /* Certificates */
665 error
= SSLNewContext(true, &conn
);
670 error
= SSLSetIOFuncs(conn
, CDSAReadFunc
, CDSAWriteFunc
);
673 error
= SSLSetProtocolVersion(conn
, kSSLProtocol3
);
676 error
= SSLSetConnection(conn
, (SSLConnectionRef
)con
->http
.fd
);
680 hostName
= ServerName
; /* MRS: ??? */
681 error
= SSLSetPeerDomainName(conn
, hostName
, strlen(hostName
) + 1);
684 /* have to do these options befor setting server certs */
685 if (!error
&& allowExpired
)
686 error
= SSLSetAllowsExpiredCerts(conn
, true);
688 if (!error
&& allowAnyRoot
)
689 error
= SSLSetAllowsAnyRoot(conn
, true);
691 if (!error
&& ServerCertificatesArray
!= NULL
)
692 error
= SSLSetCertificate(conn
, ServerCertificatesArray
);
695 * Perform SSL/TLS handshake
700 error
= SSLHandshake(conn
);
702 while (error
== errSSLWouldBlock
);
706 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
709 LogMessage(L_ERROR
, "EncryptClient: CDSA error code is %d", error
);
711 con
->http
.error
= error
;
712 con
->http
.status
= HTTP_ERROR
;
715 SSLDisposeContext(conn
);
720 LogMessage(L_DEBUG
, "EncryptClient: %d Connection from %s now encrypted.",
721 con
->http
.fd
, con
->http
.hostname
);
723 con
->http
.tls
= conn
;
728 #endif /* HAVE_GNUTLS */
733 * 'IsCGI()' - Is the resource a CGI script/program?
736 int /* O - 1 = CGI, 0 = file */
737 IsCGI(client_t
*con
, /* I - Client connection */
738 const char *filename
, /* I - Real filename */
739 struct stat
*filestats
, /* I - File information */
740 mime_type_t
*type
) /* I - MIME type */
742 const char *options
; /* Options on URL */
745 LogMessage(L_DEBUG2
, "IsCGI(con=%p, filename=\"%s\", filestats=%p, type=%s/%s)\n",
746 con
, filename
, filestats
, type
? type
->super
: "unknown",
747 type
? type
->type
: "unknown");
750 * Get the options, if any...
753 if ((options
= strchr(con
->uri
, '?')) != NULL
)
757 * Check for known types...
760 if (!type
|| strcasecmp(type
->super
, "application"))
762 LogMessage(L_DEBUG2
, "IsCGI: Returning 0...");
766 if (!strcasecmp(type
->type
, "x-httpd-cgi") &&
767 (filestats
->st_mode
& 0111))
770 * "application/x-httpd-cgi" is a CGI script.
773 SetString(&con
->command
, filename
);
775 filename
= strrchr(filename
, '/') + 1; /* Filename always absolute */
778 SetStringf(&con
->options
, "%s %s", filename
, options
);
780 SetStringf(&con
->options
, "%s", filename
);
782 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
783 con
->command
, con
->options
);
788 else if (!strcasecmp(type
->type
, "x-httpd-java"))
791 * "application/x-httpd-java" is a Java servlet.
794 SetString(&con
->command
, CUPS_JAVA
);
797 SetStringf(&con
->options
, "java %s %s", filename
, options
);
799 SetStringf(&con
->options
, "java %s", filename
);
801 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
802 con
->command
, con
->options
);
806 #endif /* HAVE_JAVA */
808 else if (!strcasecmp(type
->type
, "x-httpd-perl"))
811 * "application/x-httpd-perl" is a Perl page.
814 SetString(&con
->command
, CUPS_PERL
);
817 SetStringf(&con
->options
, "perl %s %s", filename
, options
);
819 SetStringf(&con
->options
, "perl %s", filename
);
821 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
822 con
->command
, con
->options
);
826 #endif /* HAVE_PERL */
828 else if (!strcasecmp(type
->type
, "x-httpd-php"))
831 * "application/x-httpd-php" is a PHP page.
834 SetString(&con
->command
, CUPS_PHP
);
837 SetStringf(&con
->options
, "php %s %s", filename
, options
);
839 SetStringf(&con
->options
, "php %s", filename
);
841 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
842 con
->command
, con
->options
);
846 #endif /* HAVE_PHP */
848 else if (!strcasecmp(type
->type
, "x-httpd-python"))
851 * "application/x-httpd-python" is a Python page.
854 SetString(&con
->command
, CUPS_PYTHON
);
857 SetStringf(&con
->options
, "python %s %s", filename
, options
);
859 SetStringf(&con
->options
, "python %s", filename
);
861 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
862 con
->command
, con
->options
);
866 #endif /* HAVE_PYTHON */
868 LogMessage(L_DEBUG2
, "IsCGI: Returning 0...");
875 * 'ReadClient()' - Read data from a client.
878 int /* O - 1 on success, 0 on error */
879 ReadClient(client_t
*con
) /* I - Client to read from */
881 char line
[32768], /* Line from client... */
882 operation
[64], /* Operation code from socket */
883 version
[64], /* HTTP version number string */
884 locale
[64], /* Locale */
885 *ptr
; /* Pointer into strings */
886 int major
, minor
; /* HTTP version numbers */
887 http_status_t status
; /* Transfer status */
888 ipp_state_t ipp_state
; /* State of IPP transfer */
889 int bytes
; /* Number of bytes to POST */
890 char *filename
; /* Name of file for GET/HEAD */
891 char buf
[1024]; /* Buffer for real filename */
892 struct stat filestats
; /* File information */
893 mime_type_t
*type
; /* MIME type of file */
894 printer_t
*p
; /* Printer */
895 location_t
*best
; /* Best match for authentication */
896 static unsigned request_id
= 0; /* Request ID for temp files */
899 status
= HTTP_CONTINUE
;
901 LogMessage(L_DEBUG2
, "ReadClient: %d, used=%d, file=%d", con
->http
.fd
,
902 con
->http
.used
, con
->file
);
906 LogMessage(L_DEBUG2
, "ReadClient: http error seen...");
907 return (CloseClient(con
));
910 switch (con
->http
.state
)
914 * See if we've received a request line...
917 if (httpGets(line
, sizeof(line
) - 1, HTTP(con
)) == NULL
)
919 LogMessage(L_DEBUG2
, "ReadClient: httpGets returned EOF...");
920 return (CloseClient(con
));
924 * Ignore blank request lines...
931 * Clear other state variables...
934 httpClearFields(HTTP(con
));
936 con
->http
.activity
= time(NULL
);
937 con
->http
.version
= HTTP_1_0
;
938 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
939 con
->http
.data_encoding
= HTTP_ENCODE_LENGTH
;
940 con
->http
.data_remaining
= 0;
941 con
->operation
= HTTP_WAITING
;
946 con
->username
[0] = '\0';
947 con
->password
[0] = '\0';
950 ClearString(&con
->command
);
951 ClearString(&con
->options
);
953 if (con
->language
!= NULL
)
955 cupsLangFree(con
->language
);
956 con
->language
= NULL
;
960 * Grab the request line...
963 switch (sscanf(line
, "%63s%1023s%63s", operation
, con
->uri
, version
))
966 LogMessage(L_ERROR
, "Bad request line \"%s\" from %s!", line
,
968 SendError(con
, HTTP_BAD_REQUEST
);
969 return (CloseClient(con
));
971 con
->http
.version
= HTTP_0_9
;
974 if (sscanf(version
, "HTTP/%d.%d", &major
, &minor
) != 2)
976 LogMessage(L_ERROR
, "Bad request line \"%s\" from %s!", line
,
978 SendError(con
, HTTP_BAD_REQUEST
);
979 return (CloseClient(con
));
984 con
->http
.version
= (http_version_t
)(major
* 100 + minor
);
985 if (con
->http
.version
== HTTP_1_1
&& KeepAlive
)
986 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
988 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
992 SendError(con
, HTTP_NOT_SUPPORTED
);
993 return (CloseClient(con
));
999 * Handle full URLs in the request line...
1002 if (con
->uri
[0] != '/' && strcmp(con
->uri
, "*"))
1004 char method
[HTTP_MAX_URI
], /* Method/scheme */
1005 userpass
[HTTP_MAX_URI
], /* Username:password */
1006 hostname
[HTTP_MAX_URI
], /* Hostname */
1007 resource
[HTTP_MAX_URI
]; /* Resource path */
1008 int port
; /* Port number */
1012 * Separate the URI into its components...
1015 httpSeparate(con
->uri
, method
, userpass
, hostname
, &port
, resource
);
1018 * Only allow URIs with the servername, localhost, or an IP
1022 if (strcasecmp(hostname
, ServerName
) &&
1023 strcasecmp(hostname
, "localhost") &&
1024 !isdigit(hostname
[0]))
1027 * Nope, we don't do proxies...
1030 LogMessage(L_ERROR
, "Bad URI \"%s\" in request!", con
->uri
);
1031 SendError(con
, HTTP_METHOD_NOT_ALLOWED
);
1032 return (CloseClient(con
));
1036 * Copy the resource portion back into the URI; both resource and
1037 * con->uri are HTTP_MAX_URI bytes in size...
1040 strcpy(con
->uri
, resource
);
1044 * Process the request...
1047 if (strcmp(operation
, "GET") == 0)
1048 con
->http
.state
= HTTP_GET
;
1049 else if (strcmp(operation
, "PUT") == 0)
1050 con
->http
.state
= HTTP_PUT
;
1051 else if (strcmp(operation
, "POST") == 0)
1052 con
->http
.state
= HTTP_POST
;
1053 else if (strcmp(operation
, "DELETE") == 0)
1054 con
->http
.state
= HTTP_DELETE
;
1055 else if (strcmp(operation
, "TRACE") == 0)
1056 con
->http
.state
= HTTP_TRACE
;
1057 else if (strcmp(operation
, "OPTIONS") == 0)
1058 con
->http
.state
= HTTP_OPTIONS
;
1059 else if (strcmp(operation
, "HEAD") == 0)
1060 con
->http
.state
= HTTP_HEAD
;
1063 LogMessage(L_ERROR
, "Bad operation \"%s\"!", operation
);
1064 SendError(con
, HTTP_BAD_REQUEST
);
1065 return (CloseClient(con
));
1068 con
->start
= time(NULL
);
1069 con
->operation
= con
->http
.state
;
1071 LogMessage(L_DEBUG
, "ReadClient: %d %s %s HTTP/%d.%d", con
->http
.fd
,
1072 operation
, con
->uri
,
1073 con
->http
.version
/ 100, con
->http
.version
% 100);
1075 con
->http
.status
= HTTP_OK
;
1085 * Parse incoming parameters until the status changes...
1088 status
= httpUpdate(HTTP(con
));
1090 if (status
!= HTTP_OK
&& status
!= HTTP_CONTINUE
)
1092 SendError(con
, HTTP_BAD_REQUEST
);
1093 return (CloseClient(con
));
1098 break; /* Anti-compiler-warning-code */
1102 * Handle new transfers...
1105 if (status
== HTTP_OK
)
1107 if (con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
][0])
1110 * Figure out the locale from the Accept-Language and Content-Type
1114 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ',')) != NULL
)
1117 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ';')) != NULL
)
1120 if ((ptr
= strstr(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
], "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
);
1144 if (strncmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Keep-Alive", 10) == 0 &&
1146 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
1148 if (con
->http
.fields
[HTTP_FIELD_HOST
][0] == '\0' &&
1149 con
->http
.version
>= HTTP_1_1
)
1152 * HTTP/1.1 and higher require the "Host:" field...
1155 if (!SendError(con
, HTTP_BAD_REQUEST
))
1156 return (CloseClient(con
));
1158 else if (con
->operation
== HTTP_OPTIONS
)
1161 * Do OPTIONS command...
1164 if ((best
= FindBest(con
->uri
, con
->http
.state
)) != NULL
&&
1165 best
->type
!= AUTH_NONE
)
1167 if (!SendHeader(con
, HTTP_UNAUTHORIZED
, NULL
))
1168 return (CloseClient(con
));
1171 if (strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") == 0 &&
1172 con
->http
.tls
== NULL
)
1176 * Do encryption stuff...
1179 if (!SendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
))
1180 return (CloseClient(con
));
1182 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1183 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1184 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1185 httpPrintf(HTTP(con
), "\r\n");
1189 if (!SendError(con
, HTTP_NOT_IMPLEMENTED
))
1190 return (CloseClient(con
));
1191 #endif /* HAVE_SSL */
1194 if (con
->http
.expect
)
1196 /**** TODO: send expected header ****/
1199 if (!SendHeader(con
, HTTP_OK
, NULL
))
1200 return (CloseClient(con
));
1202 httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n");
1203 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1204 httpPrintf(HTTP(con
), "\r\n");
1206 else if (strstr(con
->uri
, "..") != NULL
)
1209 * Protect against malicious users!
1212 if (!SendError(con
, HTTP_FORBIDDEN
))
1213 return (CloseClient(con
));
1217 if (strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") == 0 &&
1218 con
->http
.tls
== NULL
)
1222 * Do encryption stuff...
1225 if (!SendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
))
1226 return (CloseClient(con
));
1228 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1229 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1230 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1231 httpPrintf(HTTP(con
), "\r\n");
1235 status
= IsAuthorized(con
);
1237 if (!SendError(con
, HTTP_NOT_IMPLEMENTED
))
1238 return (CloseClient(con
));
1239 #endif /* HAVE_SSL */
1242 if (status
!= HTTP_OK
)
1244 LogMessage(L_DEBUG2
, "ReadClient: Unauthorized request for %s...\n",
1246 SendError(con
, status
);
1247 return (CloseClient(con
));
1250 if (con
->http
.expect
)
1252 /**** TODO: send expected header ****/
1255 switch (con
->http
.state
)
1257 case HTTP_GET_SEND
:
1258 if (strncmp(con
->uri
, "/printers/", 10) == 0 &&
1259 strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd") == 0)
1262 * Send PPD file - get the real printer name since printer
1263 * names are not case sensitive but filenames can be...
1266 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1268 if ((p
= FindPrinter(con
->uri
+ 10)) != NULL
)
1269 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1272 if (!SendError(con
, HTTP_NOT_FOUND
))
1273 return (CloseClient(con
));
1279 if ((strncmp(con
->uri
, "/admin", 6) == 0 &&
1280 strncmp(con
->uri
, "/admin/conf/", 12) != 0) ||
1281 strncmp(con
->uri
, "/printers", 9) == 0 ||
1282 strncmp(con
->uri
, "/classes", 8) == 0 ||
1283 strncmp(con
->uri
, "/jobs", 5) == 0)
1286 * Send CGI output...
1289 if (strncmp(con
->uri
, "/admin", 6) == 0)
1291 SetStringf(&con
->command
, "%s/cgi-bin/admin.cgi", ServerBin
);
1293 if ((ptr
= strchr(con
->uri
+ 6, '?')) != NULL
)
1294 SetStringf(&con
->options
, "admin%s", ptr
);
1296 SetString(&con
->options
, "admin");
1298 else if (strncmp(con
->uri
, "/printers", 9) == 0)
1300 SetStringf(&con
->command
, "%s/cgi-bin/printers.cgi", ServerBin
);
1301 SetString(&con
->options
, con
->uri
+ 9);
1303 else if (strncmp(con
->uri
, "/classes", 8) == 0)
1305 SetStringf(&con
->command
, "%s/cgi-bin/classes.cgi", ServerBin
);
1306 SetString(&con
->options
, con
->uri
+ 8);
1310 SetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi", ServerBin
);
1312 if (con
->uri
[5] == '/')
1313 SetString(&con
->options
, con
->uri
+ 6);
1315 SetString(&con
->options
, con
->uri
+ 5);
1318 if (!SendCommand(con
, con
->command
, con
->options
))
1320 if (!SendError(con
, HTTP_NOT_FOUND
))
1321 return (CloseClient(con
));
1324 LogRequest(con
, HTTP_OK
);
1326 if (con
->http
.version
<= HTTP_1_0
)
1327 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1329 else if (strncmp(con
->uri
, "/admin/conf/", 12) == 0 &&
1330 (strchr(con
->uri
+ 12, '/') != NULL
||
1331 strlen(con
->uri
) == 12))
1334 * GET can only be done to configuration files under
1338 if (!SendError(con
, HTTP_FORBIDDEN
))
1339 return (CloseClient(con
));
1349 if ((filename
= get_file(con
, &filestats
, buf
,
1350 sizeof(buf
))) == NULL
)
1352 if (!SendError(con
, HTTP_NOT_FOUND
))
1353 return (CloseClient(con
));
1358 type
= mimeFileType(MimeDatabase
, filename
, NULL
);
1360 if (IsCGI(con
, filename
, &filestats
, type
))
1363 * Note: con->command and con->options were set by
1367 if (!SendCommand(con
, con
->command
, con
->options
))
1369 if (!SendError(con
, HTTP_NOT_FOUND
))
1370 return (CloseClient(con
));
1373 LogRequest(con
, HTTP_OK
);
1375 if (con
->http
.version
<= HTTP_1_0
)
1376 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1380 if (!check_if_modified(con
, &filestats
))
1382 if (!SendError(con
, HTTP_NOT_MODIFIED
))
1383 return (CloseClient(con
));
1388 strcpy(line
, "text/plain");
1390 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1392 if (!SendFile(con
, HTTP_OK
, filename
, line
, &filestats
))
1393 return (CloseClient(con
));
1398 case HTTP_POST_RECV
:
1400 * See if the POST request includes a Content-Length field, and if
1401 * so check the length against any limits that are set...
1404 LogMessage(L_DEBUG2
, "POST %s", con
->uri
);
1405 LogMessage(L_DEBUG2
, "CONTENT_TYPE = %s", con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
1407 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1408 atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) > MaxRequestSize
&&
1412 * Request too large...
1415 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1416 return (CloseClient(con
));
1420 else if (atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) < 0)
1423 * Negative content lengths are invalid!
1426 if (!SendError(con
, HTTP_BAD_REQUEST
))
1427 return (CloseClient(con
));
1433 * See what kind of POST request this is; for IPP requests the
1434 * content-type field will be "application/ipp"...
1437 if (strcmp(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
], "application/ipp") == 0)
1438 con
->request
= ippNew();
1439 else if ((strncmp(con
->uri
, "/admin", 6) == 0 &&
1440 strncmp(con
->uri
, "/admin/conf/", 12) != 0) ||
1441 strncmp(con
->uri
, "/printers", 9) == 0 ||
1442 strncmp(con
->uri
, "/classes", 8) == 0 ||
1443 strncmp(con
->uri
, "/jobs", 5) == 0)
1449 if (strncmp(con
->uri
, "/admin", 6) == 0)
1451 SetStringf(&con
->command
, "%s/cgi-bin/admin.cgi", ServerBin
);
1452 SetString(&con
->options
, con
->uri
+ 6);
1454 else if (strncmp(con
->uri
, "/printers", 9) == 0)
1456 SetStringf(&con
->command
, "%s/cgi-bin/printers.cgi", ServerBin
);
1457 SetString(&con
->options
, con
->uri
+ 9);
1459 else if (strncmp(con
->uri
, "/classes", 8) == 0)
1461 SetStringf(&con
->command
, "%s/cgi-bin/classes.cgi", ServerBin
);
1462 SetString(&con
->options
, con
->uri
+ 8);
1466 SetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi", ServerBin
);
1467 SetString(&con
->options
, con
->uri
+ 5);
1470 if (con
->options
[0] == '/')
1471 cups_strcpy(con
->options
, con
->options
+ 1);
1473 LogMessage(L_DEBUG2
, "ReadClient: %d command=\"%s\", options = \"%s\"",
1474 con
->http
.fd
, con
->command
, con
->options
);
1476 if (con
->http
.version
<= HTTP_1_0
)
1477 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1485 if ((filename
= get_file(con
, &filestats
, buf
,
1486 sizeof(buf
))) == NULL
)
1488 if (!SendError(con
, HTTP_NOT_FOUND
))
1489 return (CloseClient(con
));
1494 type
= mimeFileType(MimeDatabase
, filename
, NULL
);
1496 if (!IsCGI(con
, filename
, &filestats
, type
))
1499 * Only POST to CGI's...
1502 if (!SendError(con
, HTTP_UNAUTHORIZED
))
1503 return (CloseClient(con
));
1508 case HTTP_PUT_RECV
:
1510 * Validate the resource name...
1513 if (strncmp(con
->uri
, "/admin/conf/", 12) != 0 ||
1514 strchr(con
->uri
+ 12, '/') != NULL
||
1515 strlen(con
->uri
) == 12)
1518 * PUT can only be done to configuration files under
1522 if (!SendError(con
, HTTP_FORBIDDEN
))
1523 return (CloseClient(con
));
1529 * See if the PUT request includes a Content-Length field, and if
1530 * so check the length against any limits that are set...
1533 LogMessage(L_DEBUG2
, "PUT %s", con
->uri
);
1534 LogMessage(L_DEBUG2
, "CONTENT_TYPE = %s", con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
1536 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1537 atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) > MaxRequestSize
&&
1541 * Request too large...
1544 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1545 return (CloseClient(con
));
1549 else if (atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) < 0)
1552 * Negative content lengths are invalid!
1555 if (!SendError(con
, HTTP_BAD_REQUEST
))
1556 return (CloseClient(con
));
1562 * Open a temporary file to hold the request...
1565 SetStringf(&con
->filename
, "%s/%08x", RequestRoot
, request_id
++);
1566 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1567 fchmod(con
->file
, 0640);
1568 fchown(con
->file
, RunUser
, Group
);
1572 * Close this file when starting other processes...
1575 fcntl(con
->file
, F_SETFD
, FD_CLOEXEC
);
1576 #endif /* FD_CLOEXEC */
1578 LogMessage(L_DEBUG2
, "ReadClient: %d REQUEST %s=%d", con
->http
.fd
,
1579 con
->filename
, con
->file
);
1583 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1584 return (CloseClient(con
));
1590 SendError(con
, HTTP_NOT_IMPLEMENTED
);
1591 return (CloseClient(con
));
1594 if (strncmp(con
->uri
, "/printers/", 10) == 0 &&
1595 strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd") == 0)
1598 * Send PPD file - get the real printer name since printer
1599 * names are not case sensitive but filenames can be...
1602 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1604 if ((p
= FindPrinter(con
->uri
+ 10)) != NULL
)
1605 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1608 if (!SendError(con
, HTTP_NOT_FOUND
))
1609 return (CloseClient(con
));
1615 if ((strncmp(con
->uri
, "/admin/", 7) == 0 &&
1616 strncmp(con
->uri
, "/admin/conf/", 12) != 0) ||
1617 strncmp(con
->uri
, "/printers/", 10) == 0 ||
1618 strncmp(con
->uri
, "/classes/", 9) == 0 ||
1619 strncmp(con
->uri
, "/jobs/", 6) == 0)
1625 if (!SendHeader(con
, HTTP_OK
, "text/html"))
1626 return (CloseClient(con
));
1628 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1629 return (CloseClient(con
));
1631 LogRequest(con
, HTTP_OK
);
1633 else if (strncmp(con
->uri
, "/admin/conf/", 12) == 0 &&
1634 (strchr(con
->uri
+ 12, '/') != NULL
||
1635 strlen(con
->uri
) == 12))
1638 * HEAD can only be done to configuration files under
1642 if (!SendError(con
, HTTP_FORBIDDEN
))
1643 return (CloseClient(con
));
1647 else if ((filename
= get_file(con
, &filestats
, buf
,
1648 sizeof(buf
))) == NULL
)
1650 if (!SendHeader(con
, HTTP_NOT_FOUND
, "text/html"))
1651 return (CloseClient(con
));
1653 LogRequest(con
, HTTP_NOT_FOUND
);
1655 else if (!check_if_modified(con
, &filestats
))
1657 if (!SendError(con
, HTTP_NOT_MODIFIED
))
1658 return (CloseClient(con
));
1660 LogRequest(con
, HTTP_NOT_MODIFIED
);
1668 type
= mimeFileType(MimeDatabase
, filename
, NULL
);
1670 strcpy(line
, "text/plain");
1672 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1674 if (!SendHeader(con
, HTTP_OK
, line
))
1675 return (CloseClient(con
));
1677 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
1678 httpGetDateString(filestats
.st_mtime
)) < 0)
1679 return (CloseClient(con
));
1681 if (httpPrintf(HTTP(con
), "Content-Length: %lu\r\n",
1682 (unsigned long)filestats
.st_size
) < 0)
1683 return (CloseClient(con
));
1685 LogRequest(con
, HTTP_OK
);
1688 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1689 return (CloseClient(con
));
1691 con
->http
.state
= HTTP_WAITING
;
1695 break; /* Anti-compiler-warning-code */
1701 * Handle any incoming data...
1704 switch (con
->http
.state
)
1706 case HTTP_PUT_RECV
:
1707 LogMessage(L_DEBUG2
, "ReadClient: %d con->data_encoding = %s, con->data_remaining = %d, con->file = %d",
1709 con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
? "chunked" : "length",
1710 con
->http
.data_remaining
, con
->file
);
1712 if ((bytes
= httpRead(HTTP(con
), line
, sizeof(line
))) < 0)
1713 return (CloseClient(con
));
1716 con
->bytes
+= bytes
;
1718 LogMessage(L_DEBUG2
, "ReadClient: %d writing %d bytes to %d",
1719 con
->http
.fd
, bytes
, con
->file
);
1721 if (write(con
->file
, line
, bytes
) < bytes
)
1723 LogMessage(L_ERROR
, "ReadClient: Unable to write %d bytes to %s: %s",
1724 bytes
, con
->filename
, strerror(errno
));
1726 LogMessage(L_DEBUG2
, "ReadClient: Closing data file %d...",
1731 unlink(con
->filename
);
1732 ClearString(&con
->filename
);
1734 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1735 return (CloseClient(con
));
1739 if (con
->http
.state
== HTTP_WAITING
)
1742 * End of file, see how big it is...
1745 fstat(con
->file
, &filestats
);
1747 LogMessage(L_DEBUG2
, "ReadClient: %d Closing data file %d, size = %d.",
1748 con
->http
.fd
, con
->file
, (int)filestats
.st_size
);
1753 if (filestats
.st_size
> MaxRequestSize
&&
1757 * Request is too big; remove it and send an error...
1760 LogMessage(L_DEBUG2
, "ReadClient: %d Removing temp file %s",
1761 con
->http
.fd
, con
->filename
);
1762 unlink(con
->filename
);
1763 ClearString(&con
->filename
);
1765 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1766 return (CloseClient(con
));
1770 * Install the configuration file...
1773 status
= install_conf_file(con
);
1776 * Return the status to the client...
1779 if (!SendError(con
, status
))
1780 return (CloseClient(con
));
1784 case HTTP_POST_RECV
:
1785 LogMessage(L_DEBUG2
, "ReadClient: %d con->data_encoding = %s, con->data_remaining = %d, con->file = %d",
1787 con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
? "chunked" : "length",
1788 con
->http
.data_remaining
, con
->file
);
1790 if (con
->request
!= NULL
)
1793 * Grab any request data from the connection...
1796 if ((ipp_state
= ippRead(&(con
->http
), con
->request
)) == IPP_ERROR
)
1798 LogMessage(L_ERROR
, "ReadClient: %d IPP Read Error!",
1801 SendError(con
, HTTP_BAD_REQUEST
);
1802 return (CloseClient(con
));
1804 else if (ipp_state
!= IPP_DATA
)
1807 con
->bytes
+= ippLength(con
->request
);
1810 if (con
->file
< 0 && con
->http
.state
!= HTTP_POST_SEND
)
1813 * Create a file as needed for the request data...
1816 SetStringf(&con
->filename
, "%s/%08x", RequestRoot
, request_id
++);
1817 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1818 fchmod(con
->file
, 0640);
1819 fchown(con
->file
, RunUser
, Group
);
1823 * Close this file when starting other processes...
1826 fcntl(con
->file
, F_SETFD
, FD_CLOEXEC
);
1827 #endif /* FD_CLOEXEC */
1829 LogMessage(L_DEBUG2
, "ReadClient: %d REQUEST %s=%d", con
->http
.fd
,
1830 con
->filename
, con
->file
);
1834 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1835 return (CloseClient(con
));
1839 if (con
->http
.state
!= HTTP_POST_SEND
)
1841 if ((bytes
= httpRead(HTTP(con
), line
, sizeof(line
))) < 0)
1842 return (CloseClient(con
));
1845 con
->bytes
+= bytes
;
1847 LogMessage(L_DEBUG2
, "ReadClient: %d writing %d bytes to %d",
1848 con
->http
.fd
, bytes
, con
->file
);
1850 if (write(con
->file
, line
, bytes
) < bytes
)
1852 LogMessage(L_ERROR
, "ReadClient: Unable to write %d bytes to %s: %s",
1853 bytes
, con
->filename
, strerror(errno
));
1855 LogMessage(L_DEBUG2
, "ReadClient: Closing file %d...",
1860 unlink(con
->filename
);
1861 ClearString(&con
->filename
);
1863 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1864 return (CloseClient(con
));
1867 else if (con
->http
.state
== HTTP_POST_RECV
)
1868 return (1); /* ??? */
1869 else if (con
->http
.state
!= HTTP_POST_SEND
)
1870 return (CloseClient(con
));
1873 if (con
->http
.state
== HTTP_POST_SEND
)
1877 fstat(con
->file
, &filestats
);
1879 LogMessage(L_DEBUG2
, "ReadClient: %d Closing data file %d, size = %d.",
1880 con
->http
.fd
, con
->file
, (int)filestats
.st_size
);
1885 if (filestats
.st_size
> MaxRequestSize
&&
1889 * Request is too big; remove it and send an error...
1892 LogMessage(L_DEBUG2
, "ReadClient: %d Removing temp file %s",
1893 con
->http
.fd
, con
->filename
);
1894 unlink(con
->filename
);
1895 ClearString(&con
->filename
);
1900 * Delete any IPP request data...
1903 ippDelete(con
->request
);
1904 con
->request
= NULL
;
1907 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1908 return (CloseClient(con
));
1913 if (!SendCommand(con
, con
->command
, con
->options
))
1915 if (!SendError(con
, HTTP_NOT_FOUND
))
1916 return (CloseClient(con
));
1919 LogRequest(con
, HTTP_OK
);
1924 return (ProcessIPPRequest(con
));
1929 break; /* Anti-compiler-warning-code */
1932 if (!con
->http
.keep_alive
&& con
->http
.state
== HTTP_WAITING
)
1933 return (CloseClient(con
));
1940 * 'SendCommand()' - Send output from a command via HTTP.
1944 SendCommand(client_t
*con
,
1952 fd
= open(con
->filename
, O_RDONLY
);
1954 fd
= open("/dev/null", O_RDONLY
);
1956 con
->pipe_pid
= pipe_command(con
, fd
, &(con
->file
), command
, options
);
1960 LogMessage(L_INFO
, "Started \"%s\" (pid=%d)", command
, con
->pipe_pid
);
1962 LogMessage(L_DEBUG
, "SendCommand: %d file=%d", con
->http
.fd
, con
->file
);
1964 if (con
->pipe_pid
== 0)
1967 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1969 LogMessage(L_DEBUG2
, "SendCommand: Adding fd %d to InputSet...", con
->file
);
1970 LogMessage(L_DEBUG2
, "SendCommand: Adding fd %d to OutputSet...",
1973 FD_SET(con
->file
, InputSet
);
1974 FD_SET(con
->http
.fd
, OutputSet
);
1976 if (!SendHeader(con
, HTTP_OK
, NULL
))
1979 if (con
->http
.version
== HTTP_1_1
)
1981 con
->http
.data_encoding
= HTTP_ENCODE_CHUNKED
;
1983 if (httpPrintf(HTTP(con
), "Transfer-Encoding: chunked\r\n") < 0)
1987 con
->file_ready
= 0;
1988 con
->got_fields
= 0;
1996 * 'SendError()' - Send an error message via HTTP.
1999 int /* O - 1 if successful, 0 otherwise */
2000 SendError(client_t
*con
, /* I - Connection */
2001 http_status_t code
) /* I - Error code */
2003 char message
[1024]; /* Message for user */
2007 * Put the request in the access_log file...
2010 LogRequest(con
, code
);
2012 LogMessage(L_DEBUG
, "SendError: %d code=%d (%s)", con
->http
.fd
, code
,
2016 * To work around bugs in some proxies, don't use Keep-Alive for some
2020 if (code
>= HTTP_BAD_REQUEST
)
2021 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
2024 * Send an error message back to the client. If the error code is a
2025 * 400 or 500 series, make sure the message contains some text, too!
2028 if (!SendHeader(con
, code
, NULL
))
2032 if (code
== HTTP_UPGRADE_REQUIRED
)
2033 if (httpPrintf(HTTP(con
), "Connection: Upgrade\r\n") < 0)
2036 if (httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0)
2038 #endif /* HAVE_SSL */
2040 if ((con
->http
.version
>= HTTP_1_1
&& !con
->http
.keep_alive
) ||
2041 (code
>= HTTP_BAD_REQUEST
&& code
!= HTTP_UPGRADE_REQUIRED
))
2043 if (httpPrintf(HTTP(con
), "Connection: close\r\n") < 0)
2047 if (code
>= HTTP_BAD_REQUEST
)
2050 * Send a human-readable error message.
2053 snprintf(message
, sizeof(message
),
2054 "<HTML><HEAD><TITLE>%d %s</TITLE></HEAD>"
2055 "<BODY><H1>%s</H1>%s</BODY></HTML>\n",
2056 code
, httpStatus(code
), httpStatus(code
),
2057 con
->language
? con
->language
->messages
[code
] :
2060 if (httpPrintf(HTTP(con
), "Content-Type: text/html\r\n") < 0)
2062 if (httpPrintf(HTTP(con
), "Content-Length: %d\r\n",
2063 (int)strlen(message
)) < 0)
2065 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2067 if (httpPrintf(HTTP(con
), "%s", message
) < 0)
2070 else if (httpPrintf(HTTP(con
), "\r\n") < 0)
2073 con
->http
.state
= HTTP_WAITING
;
2080 * 'SendFile()' - Send a file via HTTP.
2084 SendFile(client_t
*con
,
2088 struct stat
*filestats
)
2090 con
->file
= open(filename
, O_RDONLY
);
2092 LogMessage(L_DEBUG
, "SendFile: %d file=%d", con
->http
.fd
, con
->file
);
2099 * Close this file when starting other processes...
2102 fcntl(con
->file
, F_SETFD
, FD_CLOEXEC
);
2103 #endif /* FD_CLOEXEC */
2107 if (!SendHeader(con
, code
, type
))
2110 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n", httpGetDateString(filestats
->st_mtime
)) < 0)
2112 if (httpPrintf(HTTP(con
), "Content-Length: %lu\r\n",
2113 (unsigned long)filestats
->st_size
) < 0)
2115 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2118 LogMessage(L_DEBUG2
, "SendFile: Adding fd %d to OutputSet...", con
->http
.fd
);
2120 FD_SET(con
->http
.fd
, OutputSet
);
2127 * 'SendHeader()' - Send an HTTP request.
2130 int /* O - 1 on success, 0 on failure */
2131 SendHeader(client_t
*con
, /* I - Client to send to */
2132 http_status_t code
, /* I - HTTP status code */
2133 char *type
) /* I - MIME type of document */
2135 location_t
*loc
; /* Authentication location */
2138 if (httpPrintf(HTTP(con
), "HTTP/%d.%d %d %s\r\n", con
->http
.version
/ 100,
2139 con
->http
.version
% 100, code
, httpStatus(code
)) < 0)
2141 if (httpPrintf(HTTP(con
), "Date: %s\r\n", httpGetDateString(time(NULL
))) < 0)
2144 if (httpPrintf(HTTP(con
), "Server: %s\r\n", ServerHeader
) < 0)
2146 if (con
->http
.keep_alive
&& con
->http
.version
>= HTTP_1_0
)
2148 if (httpPrintf(HTTP(con
), "Connection: Keep-Alive\r\n") < 0)
2150 if (httpPrintf(HTTP(con
), "Keep-Alive: timeout=%d\r\n", KeepAliveTimeout
) < 0)
2153 if (code
== HTTP_METHOD_NOT_ALLOWED
)
2154 if (httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST\r\n") < 0)
2157 if (code
== HTTP_UNAUTHORIZED
)
2160 * This already succeeded in IsAuthorized...
2163 loc
= FindBest(con
->uri
, con
->http
.state
);
2165 if (loc
->type
!= AUTH_DIGEST
)
2167 if (httpPrintf(HTTP(con
), "WWW-Authenticate: Basic realm=\"CUPS\"\r\n") < 0)
2172 if (httpPrintf(HTTP(con
), "WWW-Authenticate: Digest realm=\"CUPS\" "
2173 "nonce=\"%s\"\r\n", con
->http
.hostname
) < 0)
2177 if (con
->language
!= NULL
)
2179 if (httpPrintf(HTTP(con
), "Content-Language: %s\r\n",
2180 con
->language
->language
) < 0)
2184 if (httpPrintf(HTTP(con
), "Content-Type: %s; charset=%s\r\n", type
,
2185 cupsLangEncoding(con
->language
)) < 0)
2188 else if (type
!= NULL
)
2189 if (httpPrintf(HTTP(con
), "Content-Type: %s\r\n", type
) < 0)
2197 * 'UpdateCGI()' - Read status messages from CGI scripts and programs.
2203 char *ptr
, /* Pointer to end of line in buffer */
2204 message
[1024]; /* Pointer to message text */
2205 int loglevel
; /* Log level for message */
2208 while ((ptr
= cupsdStatBufUpdate(CGIStatusBuffer
, &loglevel
,
2209 message
, sizeof(message
))) != NULL
)
2210 if (!strchr(CGIStatusBuffer
->buffer
, '\n'))
2216 * Fatal error on pipe - should never happen!
2219 LogMessage(L_CRIT
, "UpdateCGI: error reading from CGI error pipe - %s",
2226 * 'WriteClient()' - Write data to a client as needed.
2229 int /* O - 1 if success, 0 if fail */
2230 WriteClient(client_t
*con
) /* I - Client connection */
2232 int bytes
; /* Number of bytes written */
2233 char buf
[HTTP_MAX_BUFFER
+ 1];/* Data buffer */
2234 char *bufptr
; /* Pointer into buffer */
2235 ipp_state_t ipp_state
; /* IPP state value */
2239 LogMessage(L_DEBUG2
, "WriteClient(con=%p) %d response=%p, file=%d pipe_pid=%d",
2240 con
, con
->http
.fd
, con
->response
, con
->file
, con
->pipe_pid
);
2243 if (con
->http
.state
!= HTTP_GET_SEND
&&
2244 con
->http
.state
!= HTTP_POST_SEND
)
2247 if (con
->response
!= NULL
)
2249 ipp_state
= ippWrite(&(con
->http
), con
->response
);
2250 bytes
= ipp_state
!= IPP_ERROR
&& ipp_state
!= IPP_DATA
;
2252 else if ((bytes
= read(con
->file
, buf
, HTTP_MAX_BUFFER
)) > 0)
2255 LogMessage(L_DEBUG2
, "WriteClient: Read %d bytes from file %d...",
2259 if (con
->pipe_pid
&& !con
->got_fields
)
2262 * Inspect the data for Content-Type and other fields.
2267 for (bufptr
= buf
; !con
->got_fields
&& *bufptr
; bufptr
++)
2268 if (*bufptr
== '\n')
2271 * Send line to client...
2274 if (bufptr
> buf
&& bufptr
[-1] == '\r')
2278 httpPrintf(HTTP(con
), "%s\r\n", buf
);
2279 LogMessage(L_DEBUG2
, "WriteClient: %d %s", con
->http
.fd
, buf
);
2285 bytes
-= (bufptr
- buf
);
2286 memmove(buf
, bufptr
, bytes
+ 1);
2290 * See if the line was empty...
2293 if (con
->field_col
== 0)
2294 con
->got_fields
= 1;
2298 else if (*bufptr
!= '\r')
2301 if (bytes
> 0 && !con
->got_fields
)
2304 * Remaining text needs to go out...
2307 httpPrintf(HTTP(con
), "%s", buf
);
2309 con
->http
.activity
= time(NULL
);
2312 else if (bytes
== 0)
2314 con
->http
.activity
= time(NULL
);
2319 if (httpWrite(HTTP(con
), buf
, bytes
) < 0)
2325 con
->bytes
+= bytes
;
2330 LogRequest(con
, HTTP_OK
);
2332 if (con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
)
2334 if (httpPrintf(HTTP(con
), "0\r\n\r\n") < 0)
2341 con
->http
.state
= HTTP_WAITING
;
2343 LogMessage(L_DEBUG2
, "WriteClient: Removing fd %d from OutputSet...",
2346 FD_CLR(con
->http
.fd
, OutputSet
);
2350 if (FD_ISSET(con
->file
, InputSet
))
2352 LogMessage(L_DEBUG2
, "WriteClient: Removing fd %d from InputSet...",
2354 FD_CLR(con
->file
, InputSet
);
2358 kill(con
->pipe_pid
, SIGTERM
);
2360 LogMessage(L_DEBUG2
, "WriteClient() %d Closing data file %d.",
2361 con
->http
.fd
, con
->file
);
2370 LogMessage(L_DEBUG2
, "WriteClient() %d Removing temp file %s",
2371 con
->http
.fd
, con
->filename
);
2372 unlink(con
->filename
);
2373 ClearString(&con
->filename
);
2376 if (con
->request
!= NULL
)
2378 ippDelete(con
->request
);
2379 con
->request
= NULL
;
2382 if (con
->response
!= NULL
)
2384 ippDelete(con
->response
);
2385 con
->response
= NULL
;
2388 ClearString(&con
->command
);
2389 ClearString(&con
->options
);
2391 if (!con
->http
.keep_alive
)
2399 con
->file_ready
= 0;
2401 if (con
->pipe_pid
&& !FD_ISSET(con
->file
, InputSet
))
2403 LogMessage(L_DEBUG2
, "WriteClient: Adding fd %d to InputSet...", con
->file
);
2404 FD_SET(con
->file
, InputSet
);
2409 LogMessage(L_DEBUG2
, "WriteClient: %d %d bytes", con
->http
.fd
, bytes
);
2411 con
->http
.activity
= time(NULL
);
2418 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
2421 static int /* O - 1 if modified since */
2422 check_if_modified(client_t
*con
, /* I - Client connection */
2423 struct stat
*filestats
) /* I - File information */
2425 char *ptr
; /* Pointer into field */
2426 time_t date
; /* Time/date value */
2427 int size
; /* Size/length value */
2432 ptr
= con
->http
.fields
[HTTP_FIELD_IF_MODIFIED_SINCE
];
2437 LogMessage(L_DEBUG2
, "check_if_modified: %d If-Modified-Since=\"%s\"",
2440 while (*ptr
!= '\0')
2442 while (isspace(*ptr
) || *ptr
== ';')
2445 if (strncasecmp(ptr
, "length=", 7) == 0)
2450 while (isdigit(*ptr
))
2453 else if (isalpha(*ptr
))
2455 date
= httpGetDateTime(ptr
);
2456 while (*ptr
!= '\0' && *ptr
!= ';')
2461 LogMessage(L_DEBUG2
, "check_if_modified: %d sizes=%d,%d dates=%d,%d",
2462 con
->http
.fd
, size
, (int)filestats
->st_size
, (int)date
,
2463 (int)filestats
->st_mtime
);
2465 return ((size
!= filestats
->st_size
&& size
!= 0) ||
2466 (date
< filestats
->st_mtime
&& date
!= 0) ||
2467 (size
== 0 && date
== 0));
2472 * 'decode_auth()' - Decode an authorization string.
2476 decode_auth(client_t
*con
) /* I - Client to decode to */
2478 char *s
, /* Authorization string */
2479 value
[1024]; /* Value string */
2480 const char *username
; /* Certificate username */
2484 * Decode the string...
2487 s
= con
->http
.fields
[HTTP_FIELD_AUTHORIZATION
];
2489 LogMessage(L_DEBUG2
, "decode_auth(%p): Authorization string = \"%s\"",
2492 if (strncmp(s
, "Basic", 5) == 0)
2498 httpDecode64(value
, s
);
2501 * Pull the username and password out...
2504 if ((s
= strchr(value
, ':')) == NULL
)
2506 LogMessage(L_DEBUG
, "decode_auth: %d no colon in auth string \"%s\"",
2507 con
->http
.fd
, value
);
2513 strlcpy(con
->username
, value
, sizeof(con
->username
));
2514 strlcpy(con
->password
, s
, sizeof(con
->password
));
2516 else if (strncmp(s
, "Local", 5) == 0)
2522 if ((username
= FindCert(s
)) != NULL
)
2523 strlcpy(con
->username
, username
, sizeof(con
->username
));
2525 else if (strncmp(s
, "Digest", 5) == 0)
2528 * Get the username and password from the Digest attributes...
2531 if (httpGetSubField(&(con
->http
), HTTP_FIELD_WWW_AUTHENTICATE
, "username",
2533 strlcpy(con
->username
, value
, sizeof(con
->username
));
2535 if (httpGetSubField(&(con
->http
), HTTP_FIELD_WWW_AUTHENTICATE
, "response",
2537 strlcpy(con
->password
, value
, sizeof(con
->password
) - 1);
2540 LogMessage(L_DEBUG2
, "decode_auth: %d username=\"%s\"",
2541 con
->http
.fd
, con
->username
);
2545 static char * /* O - Real filename */
2546 get_file(client_t
*con
, /* I - Client connection */
2547 struct stat
*filestats
, /* O - File information */
2548 char *filename
, /* IO - Filename buffer */
2549 int len
) /* I - Buffer length */
2551 int status
; /* Status of filesystem calls */
2552 char *ptr
; /* Pointer info filename */
2553 int plen
; /* Remaining length after pointer */
2557 * Need to add DocumentRoot global...
2560 if (strncmp(con
->uri
, "/ppd/", 5) == 0)
2561 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
);
2562 else if (strncmp(con
->uri
, "/admin/conf/", 12) == 0)
2563 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
+ 11);
2564 else if (con
->language
!= NULL
)
2565 snprintf(filename
, len
, "%s/%s%s", DocumentRoot
, con
->language
->language
,
2568 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2570 if ((ptr
= strchr(filename
, '?')) != NULL
)
2574 * Grab the status for this language; if there isn't a language-specific file
2575 * then fallback to the default one...
2578 if ((status
= stat(filename
, filestats
)) != 0 && con
->language
!= NULL
)
2581 * Drop the language prefix and try the current directory...
2584 if (strncmp(con
->uri
, "/ppd/", 5) != 0 &&
2585 strncmp(con
->uri
, "/admin/conf/", 12) != 0)
2587 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2589 if ((ptr
= strchr(filename
, '?')) != NULL
)
2592 status
= stat(filename
, filestats
);
2597 * If we're found a directory, get the index.html file instead...
2600 if (!status
&& S_ISDIR(filestats
->st_mode
))
2602 if (filename
[strlen(filename
) - 1] != '/')
2603 strlcat(filename
, "/", len
);
2605 ptr
= filename
+ strlen(filename
);
2606 plen
= len
- (ptr
- filename
);
2608 strlcpy(ptr
, "index.html", plen
);
2609 status
= stat(filename
, filestats
);
2614 strlcpy(ptr
, "index.class", plen
);
2615 status
= stat(filename
, filestats
);
2617 #endif /* HAVE_JAVA */
2622 strlcpy(ptr
, "index.pl", plen
);
2623 status
= stat(filename
, filestats
);
2625 #endif /* HAVE_PERL */
2630 strlcpy(ptr
, "index.php", plen
);
2631 status
= stat(filename
, filestats
);
2633 #endif /* HAVE_PHP */
2638 strlcpy(ptr
, "index.pyc", plen
);
2639 status
= stat(filename
, filestats
);
2644 strlcpy(ptr
, "index.py", plen
);
2645 status
= stat(filename
, filestats
);
2647 #endif /* HAVE_PYTHON */
2650 LogMessage(L_DEBUG2
, "get_file: %d filename=%s size=%d",
2651 con
->http
.fd
, filename
, status
? -1 : (int)filestats
->st_size
);
2661 * 'install_conf_file()' - Install a configuration file.
2664 static http_status_t
/* O - Status */
2665 install_conf_file(client_t
*con
) /* I - Connection */
2667 cups_file_t
*in
, /* Input file */
2668 *out
; /* Output file */
2669 char buffer
[1024]; /* Copy buffer */
2670 int bytes
; /* Number of bytes */
2671 char conffile
[1024], /* Configuration filename */
2672 newfile
[1024], /* New config filename */
2673 oldfile
[1024]; /* Old config filename */
2674 struct stat confinfo
; /* Config file info */
2678 * First construct the filenames...
2681 snprintf(conffile
, sizeof(conffile
), "%s%s", ServerRoot
, con
->uri
+ 11);
2682 snprintf(newfile
, sizeof(newfile
), "%s%s.N", ServerRoot
, con
->uri
+ 11);
2683 snprintf(oldfile
, sizeof(oldfile
), "%s%s.O", ServerRoot
, con
->uri
+ 11);
2685 LogMessage(L_INFO
, "Installing config file \"%s\"...", conffile
);
2688 * Get the owner, group, and permissions of the configuration file.
2689 * If it doesn't exist, assign it to the User and Group in the
2690 * cupsd.conf file with mode 0640 permissions.
2693 if (stat(conffile
, &confinfo
))
2695 confinfo
.st_uid
= User
;
2696 confinfo
.st_gid
= Group
;
2697 confinfo
.st_mode
= ConfigFilePerm
;
2701 * Open the request file and new config file...
2704 if ((in
= cupsFileOpen(con
->filename
, "rb")) == NULL
)
2706 LogMessage(L_ERROR
, "Unable to open request file \"%s\" - %s",
2707 con
->filename
, strerror(errno
));
2708 return (HTTP_SERVER_ERROR
);
2711 if ((out
= cupsFileOpen(newfile
, "wb")) == NULL
)
2714 LogMessage(L_ERROR
, "Unable to open config file \"%s\" - %s",
2715 newfile
, strerror(errno
));
2716 return (HTTP_SERVER_ERROR
);
2719 fchmod(cupsFileNumber(out
), confinfo
.st_mode
);
2720 fchown(cupsFileNumber(out
), confinfo
.st_uid
, confinfo
.st_gid
);
2723 * Copy from the request to the new config file...
2726 while ((bytes
= cupsFileRead(in
, buffer
, sizeof(buffer
))) > 0)
2727 if (cupsFileWrite(out
, buffer
, bytes
) < bytes
)
2729 LogMessage(L_ERROR
, "Unable to copy to config file \"%s\" - %s",
2730 newfile
, strerror(errno
));
2736 return (HTTP_SERVER_ERROR
);
2740 * Close the files...
2744 if (cupsFileClose(out
))
2746 LogMessage(L_ERROR
, "Error file closing config file \"%s\" - %s",
2747 newfile
, strerror(errno
));
2751 return (HTTP_SERVER_ERROR
);
2755 * Remove the request file...
2758 unlink(con
->filename
);
2759 ClearString(&con
->filename
);
2762 * Unlink the old backup, rename the current config file to the backup
2763 * filename, and rename the new config file to the config file name...
2766 if (unlink(oldfile
))
2767 if (errno
!= ENOENT
)
2769 LogMessage(L_ERROR
, "Unable to remove backup config file \"%s\" - %s",
2770 oldfile
, strerror(errno
));
2774 return (HTTP_SERVER_ERROR
);
2777 if (rename(conffile
, oldfile
))
2778 if (errno
!= ENOENT
)
2780 LogMessage(L_ERROR
, "Unable to rename old config file \"%s\" - %s",
2781 conffile
, strerror(errno
));
2785 return (HTTP_SERVER_ERROR
);
2788 if (rename(newfile
, conffile
))
2790 LogMessage(L_ERROR
, "Unable to rename new config file \"%s\" - %s",
2791 newfile
, strerror(errno
));
2793 rename(oldfile
, conffile
);
2796 return (HTTP_SERVER_ERROR
);
2800 * If the cupsd.conf file was updated, set the NeedReload flag...
2803 if (strcmp(con
->uri
, "/admin/conf/cupsd.conf") == 0)
2804 NeedReload
= RELOAD_CUPSD
;
2806 NeedReload
= RELOAD_ALL
;
2808 ReloadTime
= time(NULL
);
2811 * Return that the file was created successfully...
2814 return (HTTP_CREATED
);
2819 * 'pipe_command()' - Pipe the output of a command to the remote client.
2822 static int /* O - Process ID */
2823 pipe_command(client_t
*con
, /* I - Client connection */
2824 int infile
, /* I - Standard input for command */
2825 int *outfile
, /* O - Standard output for command */
2826 char *command
, /* I - Command to run */
2827 char *options
) /* I - Options for command */
2829 int i
; /* Looping var */
2830 int pid
; /* Process ID */
2831 char *commptr
; /* Command string pointer */
2832 char *uriptr
; /* URI string pointer */
2833 int fds
[2]; /* Pipe FDs */
2834 int argc
; /* Number of arguments */
2835 int envc
; /* Number of environment variables */
2836 char argbuf
[10240], /* Argument buffer */
2837 *argv
[100], /* Argument strings */
2838 *envp
[100]; /* Environment variables */
2839 char content_length
[1024], /* CONTENT_LENGTH environment variable */
2840 content_type
[1024], /* CONTENT_TYPE environment variable */
2841 cups_datadir
[1024], /* CUPS_DATADIR environment variable */
2842 cups_serverroot
[1024], /* CUPS_SERVERROOT environment variable */
2843 http_cookie
[1024], /* HTTP_COOKIE environment variable */
2844 http_user_agent
[1024], /* HTTP_USER_AGENT environment variable */
2845 ipp_port
[1024], /* IPP_PORT environment variable */
2846 lang
[1024], /* LANG environment variable */
2847 ld_library_path
[1024], /* LD_LIBRARY_PATH environment variable */
2848 ld_preload
[1024], /* LD_PRELOAD environment variable */
2849 dyld_library_path
[1024],/* DYLD_LIBRARY_PATH environment variable */
2850 shlib_path
[1024], /* SHLIB_PATH environment variable */
2851 nlspath
[1024], /* NLSPATH environment variable */
2852 *query_string
, /* QUERY_STRING env variable */
2853 remote_addr
[1024], /* REMOTE_ADDR environment variable */
2854 remote_host
[1024], /* REMOTE_HOST environment variable */
2855 remote_user
[1024], /* REMOTE_USER environment variable */
2856 script_name
[1024], /* SCRIPT_NAME environment variable */
2857 server_name
[1024], /* SERVER_NAME environment variable */
2858 server_port
[1024], /* SERVER_PORT environment variable */
2859 tmpdir
[1024], /* TMPDIR environment variable */
2860 vg_args
[1024], /* VG_ARGS environment variable */
2861 ld_assume_kernel
[1024]; /* LD_ASSUME_KERNEL environment variable */
2862 #if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
2863 struct sigaction action
; /* POSIX signal handler */
2864 #endif /* HAVE_SIGACTION && !HAVE_SIGSET */
2865 static const char * const locale_encodings
[] =
2866 { /* Locale charset names */
2867 "ASCII", "ISO8859-1", "ISO8859-2", "ISO8859-3",
2868 "ISO8859-4", "ISO8859-5", "ISO8859-6", "ISO8859-7",
2869 "ISO8859-8", "ISO8859-9", "ISO8859-10", "UTF-8",
2870 "ISO8859-13", "ISO8859-14", "ISO8859-15", "CP874",
2871 "CP1250", "CP1251", "CP1252", "CP1253",
2872 "CP1254", "CP1255", "CP1256", "CP1257",
2873 "CP1258", "KOI8R", "KOI8U", "ISO8859-11",
2874 "ISO8859-16", "", "", "",
2885 "CP932", "CP936", "CP949", "CP950",
2886 "CP1361", "", "", "",
2903 "EUC-CN", "EUC-JP", "EUC-KR", "EUC-TW"
2905 static const char * const encryptions
[] =
2907 "CUPS_ENCRYPTION=IfRequested",
2908 "CUPS_ENCRYPTION=Never",
2909 "CUPS_ENCRYPTION=Required",
2910 "CUPS_ENCRYPTION=Always"
2915 * Parse a copy of the options string, which is of the form:
2917 * name argument+argument+argument
2918 * name?argument+argument+argument
2919 * name param=value¶m=value
2920 * name?param=value¶m=value
2922 * If the string contains an "=" character after the initial name,
2923 * then we treat it as a HTTP GET form request and make a copy of
2924 * the remaining string for the environment variable.
2926 * The string is always parsed out as command-line arguments, to
2927 * be consistent with Apache...
2930 LogMessage(L_DEBUG2
, "pipe_command: command=\"%s\", options=\"%s\"",
2933 strlcpy(argbuf
, options
, sizeof(argbuf
));
2936 query_string
= NULL
;
2938 for (commptr
= argbuf
, argc
= 1; *commptr
!= '\0' && argc
< 99; commptr
++)
2941 * Break arguments whenever we see a + or space...
2944 if (*commptr
== ' ' || *commptr
== '+' || (*commptr
== '?' && argc
== 1))
2947 * Terminate the current string and skip trailing whitespace...
2952 while (*commptr
== ' ')
2956 * If we don't have a blank string, save it as another argument...
2961 argv
[argc
] = commptr
;
2968 * If we see an "=" in the remaining string, make a copy of it since
2969 * it will be query data...
2972 if (argc
== 2 && strchr(commptr
, '=') && con
->operation
== HTTP_GET
)
2973 SetStringf(&query_string
, "QUERY_STRING=%s", commptr
);
2976 * Don't skip the first non-blank character...
2981 else if (*commptr
== '%' && isxdigit(commptr
[1] & 255) &&
2982 isxdigit(commptr
[2] & 255))
2985 * Convert the %xx notation to the individual character.
2988 if (commptr
[1] >= '0' && commptr
[1] <= '9')
2989 *commptr
= (commptr
[1] - '0') << 4;
2991 *commptr
= (tolower(commptr
[1]) - 'a' + 10) << 4;
2993 if (commptr
[2] >= '0' && commptr
[2] <= '9')
2994 *commptr
|= commptr
[2] - '0';
2996 *commptr
|= tolower(commptr
[2]) - 'a' + 10;
2998 cups_strcpy(commptr
+ 1, commptr
+ 3);
3001 * Check for a %00 and break if that is the case...
3011 if (argv
[0][0] == '\0')
3012 argv
[0] = strrchr(command
, '/') + 1;
3015 * Setup the environment variables as needed...
3019 snprintf(lang
, sizeof(lang
), "LANG=%s.%s", con
->language
->language
,
3020 locale_encodings
[con
->language
->encoding
]);
3022 strcpy(lang
, "LANG=C");
3024 sprintf(ipp_port
, "IPP_PORT=%d", LocalPort
);
3026 if (con
->http
.hostaddr
.addr
.sa_family
== AF_INET6
)
3027 sprintf(server_port
, "SERVER_PORT=%d",
3028 ntohs(con
->http
.hostaddr
.ipv6
.sin6_port
));
3030 #endif /* AF_INET6 */
3031 sprintf(server_port
, "SERVER_PORT=%d",
3032 ntohs(con
->http
.hostaddr
.ipv4
.sin_port
));
3034 if (strcmp(con
->http
.hostname
, "localhost") == 0)
3035 strlcpy(server_name
, "SERVER_NAME=localhost", sizeof(server_name
));
3037 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s", ServerName
);
3038 snprintf(remote_host
, sizeof(remote_host
), "REMOTE_HOST=%s", con
->http
.hostname
);
3039 strcpy(remote_addr
, "REMOTE_ADDR=");
3040 httpAddrString(&(con
->http
.hostaddr
), remote_addr
+ 12,
3041 sizeof(remote_addr
) - 12);
3042 snprintf(remote_user
, sizeof(remote_user
), "REMOTE_USER=%s", con
->username
);
3043 snprintf(tmpdir
, sizeof(tmpdir
), "TMPDIR=%s", TempDir
);
3044 snprintf(cups_datadir
, sizeof(cups_datadir
), "CUPS_DATADIR=%s", DataDir
);
3045 snprintf(cups_serverroot
, sizeof(cups_serverroot
), "CUPS_SERVERROOT=%s", ServerRoot
);
3049 envp
[envc
++] = "PATH=/bin:/usr/bin";
3050 envp
[envc
++] = "SERVER_SOFTWARE=CUPS/1.1";
3051 envp
[envc
++] = "GATEWAY_INTERFACE=CGI/1.1";
3052 if (con
->http
.version
== HTTP_1_1
)
3053 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.1";
3054 else if (con
->http
.version
== HTTP_1_0
)
3055 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.0";
3057 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/0.9";
3058 envp
[envc
++] = "REDIRECT_STATUS=1";
3059 envp
[envc
++] = "CUPS_SERVER=localhost";
3060 envp
[envc
++] = ipp_port
;
3061 envp
[envc
++] = server_name
;
3062 envp
[envc
++] = server_port
;
3063 envp
[envc
++] = remote_addr
;
3064 envp
[envc
++] = remote_host
;
3065 envp
[envc
++] = remote_user
;
3066 envp
[envc
++] = lang
;
3068 envp
[envc
++] = tmpdir
;
3069 envp
[envc
++] = cups_datadir
;
3070 envp
[envc
++] = cups_serverroot
;
3072 if (getenv("VG_ARGS") != NULL
)
3074 snprintf(vg_args
, sizeof(vg_args
), "VG_ARGS=%s", getenv("VG_ARGS"));
3075 envp
[envc
++] = vg_args
;
3078 if (getenv("LD_ASSUME_KERNEL") != NULL
)
3080 snprintf(ld_assume_kernel
, sizeof(ld_assume_kernel
), "LD_ASSUME_KERNEL=%s",
3081 getenv("LD_ASSUME_KERNEL"));
3082 envp
[envc
++] = ld_assume_kernel
;
3085 if (getenv("LD_LIBRARY_PATH") != NULL
)
3087 snprintf(ld_library_path
, sizeof(ld_library_path
), "LD_LIBRARY_PATH=%s",
3088 getenv("LD_LIBRARY_PATH"));
3089 envp
[envc
++] = ld_library_path
;
3092 if (getenv("LD_PRELOAD") != NULL
)
3094 snprintf(ld_preload
, sizeof(ld_preload
), "LD_PRELOAD=%s",
3095 getenv("LD_PRELOAD"));
3096 envp
[envc
++] = ld_preload
;
3099 if (getenv("DYLD_LIBRARY_PATH") != NULL
)
3101 snprintf(dyld_library_path
, sizeof(dyld_library_path
), "DYLD_LIBRARY_PATH=%s",
3102 getenv("DYLD_LIBRARY_PATH"));
3103 envp
[envc
++] = dyld_library_path
;
3106 if (getenv("SHLIB_PATH") != NULL
)
3108 snprintf(shlib_path
, sizeof(shlib_path
), "SHLIB_PATH=%s",
3109 getenv("SHLIB_PATH"));
3110 envp
[envc
++] = shlib_path
;
3113 if (getenv("NLSPATH") != NULL
)
3115 snprintf(nlspath
, sizeof(nlspath
), "NLSPATH=%s", getenv("NLSPATH"));
3116 envp
[envc
++] = nlspath
;
3119 if (con
->http
.cookie
)
3121 snprintf(http_cookie
, sizeof(http_cookie
), "HTTP_COOKIE=%s",
3123 envp
[envc
++] = http_cookie
;
3126 if (con
->http
.fields
[HTTP_FIELD_USER_AGENT
][0])
3128 snprintf(http_user_agent
, sizeof(http_user_agent
), "HTTP_USER_AGENT=%s",
3129 con
->http
.fields
[HTTP_FIELD_USER_AGENT
]);
3130 envp
[envc
++] = http_user_agent
;
3133 snprintf(script_name
, sizeof(script_name
), "SCRIPT_NAME=%s", con
->uri
);
3134 if ((uriptr
= strchr(script_name
, '?')) != NULL
)
3136 envp
[envc
++] = script_name
;
3138 if (con
->operation
== HTTP_GET
)
3140 for (i
= 0; i
< argc
; i
++)
3141 LogMessage(L_DEBUG2
, "argv[%d] = \"%s\"", i
, argv
[i
]);
3142 envp
[envc
++] = "REQUEST_METHOD=GET";
3147 * Add GET form variables after ?...
3150 envp
[envc
++] = query_string
;
3155 sprintf(content_length
, "CONTENT_LENGTH=%d", con
->bytes
);
3156 snprintf(content_type
, sizeof(content_type
), "CONTENT_TYPE=%s",
3157 con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
3159 envp
[envc
++] = "REQUEST_METHOD=POST";
3160 envp
[envc
++] = content_length
;
3161 envp
[envc
++] = content_type
;
3165 * Tell the CGI if we are using encryption...
3168 if (con
->http
.encryption
== HTTP_ENCRYPT_ALWAYS
)
3169 envp
[envc
++] = "HTTPS=ON";
3171 envp
[envc
++] = (char *)encryptions
[LocalEncryption
];
3174 * Terminate the environment array...
3179 if (LogLevel
== L_DEBUG2
)
3181 for (i
= 0; i
< argc
; i
++)
3182 LogMessage(L_DEBUG2
, "pipe_command: argv[%d] = \"%s\"", i
, argv
[i
]);
3183 for (i
= 0; i
< envc
; i
++)
3184 LogMessage(L_DEBUG2
, "pipe_command: envp[%d] = \"%s\"", i
, envp
[i
]);
3188 * Create a pipe for the output...
3193 ClearString(&query_string
);
3195 LogMessage(L_ERROR
, "Unable to create pipes for CGI %s - %s",
3196 argv
[0], strerror(errno
));
3201 * Block signals before forking...
3207 * Then execute the command...
3210 if ((pid
= fork()) == 0)
3213 * Child comes here... Close stdin if necessary and dup the pipe to stdout.
3219 * Running as root, so change to a non-priviledged user...
3225 if (setgroups(1, &Group
))
3234 * Reset group membership to just the main one we belong to.
3237 setgroups(1, &Group
);
3241 * Update stdin/stdout/stderr...
3247 if (dup(infile
) < 0)
3253 if (dup(fds
[1]) < 0)
3262 * Change umask to restrict permissions on created files...
3268 * Unblock signals before doing the exec...
3272 sigset(SIGTERM
, SIG_DFL
);
3273 sigset(SIGCHLD
, SIG_DFL
);
3274 #elif defined(HAVE_SIGACTION)
3275 memset(&action
, 0, sizeof(action
));
3277 sigemptyset(&action
.sa_mask
);
3278 action
.sa_handler
= SIG_DFL
;
3280 sigaction(SIGTERM
, &action
, NULL
);
3281 sigaction(SIGCHLD
, &action
, NULL
);
3283 signal(SIGTERM
, SIG_DFL
);
3284 signal(SIGCHLD
, SIG_DFL
);
3285 #endif /* HAVE_SIGSET */
3290 * Execute the pipe program; if an error occurs, exit with status 1...
3293 execve(command
, argv
, envp
);
3300 * Error - can't fork!
3303 LogMessage(L_ERROR
, "Unable to fork for CGI %s - %s", argv
[0],
3313 * Fork successful - return the PID...
3316 AddCert(pid
, con
->username
);
3318 LogMessage(L_DEBUG
, "CGI %s started - PID = %d", command
, pid
);
3326 ClearString(&query_string
);
3332 #if defined(HAVE_CDSASSL)
3334 * 'CDSAReadFunc()' - Read function for CDSA decryption code.
3337 static OSStatus
/* O - -1 on error, 0 on success */
3338 CDSAReadFunc(SSLConnectionRef connection
, /* I - SSL/TLS connection */
3339 void *data
, /* I - Data buffer */
3340 size_t *dataLength
) /* IO - Number of bytes */
3342 ssize_t bytes
; /* Number of bytes read */
3345 bytes
= recv((int)connection
, data
, *dataLength
, 0);
3348 *dataLength
= bytes
;
3357 * 'CDSAWriteFunc()' - Write function for CDSA encryption code.
3360 static OSStatus
/* O - -1 on error, 0 on success */
3361 CDSAWriteFunc(SSLConnectionRef connection
, /* I - SSL/TLS connection */
3362 const void *data
, /* I - Data buffer */
3363 size_t *dataLength
) /* IO - Number of bytes */
3368 bytes
= write((int)connection
, data
, *dataLength
);
3371 *dataLength
= bytes
;
3377 #endif /* HAVE_CDSASSL */
3381 * End of "$Id: client.c,v 1.91.2.91 2004/08/06 13:57:05 mike Exp $".