4 * Client routines for the Common UNIX Printing System (CUPS) scheduler.
6 * Copyright 1997-2005 by Easy Software Products, all rights reserved.
8 * These coded instructions, statements, and computer programs are the
9 * property of Easy Software Products and are protected by Federal
10 * copyright law. Distribution and use rights are outlined in the file
11 * "LICENSE.txt" which should have been included with this file. If this
12 * file is missing or damaged please contact Easy Software Products
15 * Attn: CUPS Licensing Information
16 * Easy Software Products
17 * 44141 Airport View Drive, Suite 204
18 * Hollywood, Maryland 20636 USA
20 * Voice: (301) 373-9600
21 * EMail: cups-info@cups.org
22 * WWW: http://www.cups.org
26 * 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 * is_path_absolute() - Is a path absolute and free of relative elements.
43 * pipe_command() - Pipe the output of a command to the remote client.
44 * CDSAReadFunc() - Read function for CDSA decryption code.
45 * CDSAWriteFunc() - Write function for CDSA encryption code.
49 * Include necessary headers...
52 #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 is_path_absolute(const char *path
);
67 static int pipe_command(client_t
*con
, int infile
, int *outfile
,
68 char *command
, char *options
);
71 static OSStatus
CDSAReadFunc(SSLConnectionRef connection
, void *data
,
73 static OSStatus
CDSAWriteFunc(SSLConnectionRef connection
,
74 const void *data
, size_t *dataLength
);
75 #endif /* HAVE_CDSASSL */
79 * 'AcceptClient()' - Accept a new client.
83 AcceptClient(listener_t
*lis
) /* I - Listener socket */
85 int i
; /* Looping var */
86 int count
; /* Count of connections on a host */
87 int val
; /* Parameter value */
88 client_t
*con
; /* New client pointer */
89 const struct hostent
*host
; /* Host entry for address */
90 char *hostname
;/* Hostname for address */
91 http_addr_t temp
; /* Temporary address variable */
92 static time_t last_dos
= 0;
93 /* Time of last DoS attack */
96 LogMessage(L_DEBUG2
, "AcceptClient(lis=%p) %d NumClients = %d",
97 lis
, lis
->fd
, NumClients
);
100 * Make sure we don't have a full set of clients already...
103 if (NumClients
== MaxClients
)
107 * Get a pointer to the next available client...
110 con
= Clients
+ NumClients
;
112 memset(con
, 0, sizeof(client_t
));
113 con
->http
.activity
= time(NULL
);
117 * Accept the client and get the remote address...
120 val
= sizeof(struct sockaddr_in
);
122 if ((con
->http
.fd
= accept(lis
->fd
, (struct sockaddr
*)&(con
->http
.hostaddr
),
125 LogMessage(L_ERROR
, "Unable to accept client connection - %s.",
131 if (lis
->address
.addr
.sa_family
== AF_INET6
)
132 con
->http
.hostaddr
.ipv6
.sin6_port
= lis
->address
.ipv6
.sin6_port
;
134 #endif /* AF_INET6 */
135 con
->http
.hostaddr
.ipv4
.sin_port
= lis
->address
.ipv4
.sin_port
;
138 * Check the number of clients on the same address...
141 for (i
= 0, count
= 0; i
< NumClients
; i
++)
142 if (httpAddrEqual(&(Clients
[i
].http
.hostaddr
), &(con
->http
.hostaddr
)))
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
));
299 * Close this file on all execs...
302 fcntl(con
->http
.fd
, F_SETFD
, fcntl(con
->http
.fd
, F_GETFD
) | FD_CLOEXEC
);
305 * Add the socket to the select() input mask.
308 LogMessage(L_DEBUG2
, "AcceptClient: Adding fd %d to InputSet...",
310 FD_SET(con
->http
.fd
, InputSet
);
315 * Temporarily suspend accept()'s until we lose a client...
318 if (NumClients
== MaxClients
)
323 * See if we are connecting on a secure port...
326 if (lis
->encryption
== HTTP_ENCRYPT_ALWAYS
)
329 * https connection; go secure...
332 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 cupsdEndProcess(con
->pipe_pid
, 1);
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_set_options(context
, SSL_OP_NO_SSLv2
); /* Only use SSLv3 or TLS */
570 SSL_CTX_use_PrivateKey_file(context
, ServerKey
, SSL_FILETYPE_PEM
);
571 SSL_CTX_use_certificate_file(context
, ServerCertificate
, SSL_FILETYPE_PEM
);
573 conn
= SSL_new(context
);
575 SSL_set_fd(conn
, con
->http
.fd
);
576 if (SSL_accept(conn
) != 1)
578 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
581 while ((error
= ERR_get_error()) != 0)
582 LogMessage(L_ERROR
, "EncryptClient: %s", ERR_error_string(error
, NULL
));
584 SSL_CTX_free(context
);
589 LogMessage(L_DEBUG
, "EncryptClient: %d Connection from %s now encrypted.",
590 con
->http
.fd
, con
->http
.hostname
);
592 con
->http
.tls
= conn
;
595 #elif defined(HAVE_GNUTLS)
596 http_tls_t
*conn
; /* TLS session object */
597 int error
; /* Error code */
598 gnutls_certificate_server_credentials
*credentials
;
599 /* TLS credentials */
602 * Create the SSL object and perform the SSL handshake...
605 conn
= (http_tls_t
*)malloc(sizeof(gnutls_session
));
610 credentials
= (gnutls_certificate_server_credentials
*)
611 malloc(sizeof(gnutls_certificate_server_credentials
));
612 if (credentials
== NULL
)
614 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
616 LogMessage(L_ERROR
, "EncryptClient: %s", strerror(errno
));
622 gnutls_certificate_allocate_credentials(credentials
);
623 gnutls_certificate_set_x509_key_file(*credentials
, ServerCertificate
,
624 ServerKey
, GNUTLS_X509_FMT_PEM
);
626 gnutls_init(&(conn
->session
), GNUTLS_SERVER
);
627 gnutls_set_default_priority(conn
->session
);
628 gnutls_credentials_set(conn
->session
, GNUTLS_CRD_CERTIFICATE
, *credentials
);
629 gnutls_transport_set_ptr(conn
->session
, con
->http
.fd
);
631 error
= gnutls_handshake(conn
->session
);
633 if (error
!= GNUTLS_E_SUCCESS
)
635 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
637 LogMessage(L_ERROR
, "EncryptClient: %s", gnutls_strerror(error
));
639 gnutls_deinit(conn
->session
);
640 gnutls_certificate_free_credentials(*credentials
);
646 LogMessage(L_DEBUG
, "EncryptClient: %d Connection from %s now encrypted.",
647 con
->http
.fd
, con
->http
.hostname
);
649 conn
->credentials
= credentials
;
650 con
->http
.tls
= conn
;
653 #elif defined(HAVE_CDSASSL)
654 OSStatus error
; /* Error info */
655 SSLContextRef conn
; /* New connection */
656 SSLProtocol tryVersion
; /* Protocol version */
657 const char *hostName
; /* Local hostname */
658 int allowExpired
; /* Allow expired certificates? */
659 int allowAnyRoot
; /* Allow any root certificate? */
660 SSLProtocol
*negVersion
; /* Negotiated protocol version */
661 SSLCipherSuite
*negCipher
; /* Negotiated cypher */
662 CFArrayRef
*peerCerts
; /* Certificates */
666 error
= SSLNewContext(true, &conn
);
671 error
= SSLSetIOFuncs(conn
, CDSAReadFunc
, CDSAWriteFunc
);
674 error
= SSLSetProtocolVersion(conn
, kSSLProtocol3
);
677 error
= SSLSetConnection(conn
, (SSLConnectionRef
)con
->http
.fd
);
681 hostName
= ServerName
; /* MRS: ??? */
682 error
= SSLSetPeerDomainName(conn
, hostName
, strlen(hostName
) + 1);
685 /* have to do these options befor setting server certs */
686 if (!error
&& allowExpired
)
687 error
= SSLSetAllowsExpiredCerts(conn
, true);
689 if (!error
&& allowAnyRoot
)
690 error
= SSLSetAllowsAnyRoot(conn
, true);
692 if (!error
&& ServerCertificatesArray
!= NULL
)
693 error
= SSLSetCertificate(conn
, ServerCertificatesArray
);
696 * Perform SSL/TLS handshake
701 error
= SSLHandshake(conn
);
703 while (error
== errSSLWouldBlock
);
707 LogMessage(L_ERROR
, "EncryptClient: Unable to encrypt connection from %s!",
710 LogMessage(L_ERROR
, "EncryptClient: CDSA error code is %d", error
);
712 con
->http
.error
= error
;
713 con
->http
.status
= HTTP_ERROR
;
716 SSLDisposeContext(conn
);
721 LogMessage(L_DEBUG
, "EncryptClient: %d Connection from %s now encrypted.",
722 con
->http
.fd
, con
->http
.hostname
);
724 con
->http
.tls
= conn
;
729 #endif /* HAVE_GNUTLS */
734 * 'IsCGI()' - Is the resource a CGI script/program?
737 int /* O - 1 = CGI, 0 = file */
738 IsCGI(client_t
*con
, /* I - Client connection */
739 const char *filename
, /* I - Real filename */
740 struct stat
*filestats
, /* I - File information */
741 mime_type_t
*type
) /* I - MIME type */
743 const char *options
; /* Options on URL */
746 LogMessage(L_DEBUG2
, "IsCGI(con=%p, filename=\"%s\", filestats=%p, type=%s/%s)\n",
747 con
, filename
, filestats
, type
? type
->super
: "unknown",
748 type
? type
->type
: "unknown");
751 * Get the options, if any...
754 if ((options
= strchr(con
->uri
, '?')) != NULL
)
758 * Check for known types...
761 if (!type
|| strcasecmp(type
->super
, "application"))
763 LogMessage(L_DEBUG2
, "IsCGI: Returning 0...");
767 if (!strcasecmp(type
->type
, "x-httpd-cgi") &&
768 (filestats
->st_mode
& 0111))
771 * "application/x-httpd-cgi" is a CGI script.
774 SetString(&con
->command
, filename
);
776 filename
= strrchr(filename
, '/') + 1; /* Filename always absolute */
779 SetStringf(&con
->options
, "%s %s", filename
, options
);
781 SetStringf(&con
->options
, "%s", filename
);
783 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
784 con
->command
, con
->options
);
789 else if (!strcasecmp(type
->type
, "x-httpd-java"))
792 * "application/x-httpd-java" is a Java servlet.
795 SetString(&con
->command
, CUPS_JAVA
);
798 SetStringf(&con
->options
, "java %s %s", filename
, options
);
800 SetStringf(&con
->options
, "java %s", filename
);
802 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
803 con
->command
, con
->options
);
807 #endif /* HAVE_JAVA */
809 else if (!strcasecmp(type
->type
, "x-httpd-perl"))
812 * "application/x-httpd-perl" is a Perl page.
815 SetString(&con
->command
, CUPS_PERL
);
818 SetStringf(&con
->options
, "perl %s %s", filename
, options
);
820 SetStringf(&con
->options
, "perl %s", filename
);
822 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
823 con
->command
, con
->options
);
827 #endif /* HAVE_PERL */
829 else if (!strcasecmp(type
->type
, "x-httpd-php"))
832 * "application/x-httpd-php" is a PHP page.
835 SetString(&con
->command
, CUPS_PHP
);
838 SetStringf(&con
->options
, "php %s %s", filename
, options
);
840 SetStringf(&con
->options
, "php %s", filename
);
842 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
843 con
->command
, con
->options
);
847 #endif /* HAVE_PHP */
849 else if (!strcasecmp(type
->type
, "x-httpd-python"))
852 * "application/x-httpd-python" is a Python page.
855 SetString(&con
->command
, CUPS_PYTHON
);
858 SetStringf(&con
->options
, "python %s %s", filename
, options
);
860 SetStringf(&con
->options
, "python %s", filename
);
862 LogMessage(L_DEBUG2
, "IsCGI: Returning 1 with command=\"%s\" and options=\"%s\"",
863 con
->command
, con
->options
);
867 #endif /* HAVE_PYTHON */
869 LogMessage(L_DEBUG2
, "IsCGI: Returning 0...");
876 * 'ReadClient()' - Read data from a client.
879 int /* O - 1 on success, 0 on error */
880 ReadClient(client_t
*con
) /* I - Client to read from */
882 char line
[32768], /* Line from client... */
883 operation
[64], /* Operation code from socket */
884 version
[64], /* HTTP version number string */
885 locale
[64], /* Locale */
886 *ptr
; /* Pointer into strings */
887 int major
, minor
; /* HTTP version numbers */
888 http_status_t status
; /* Transfer status */
889 ipp_state_t ipp_state
; /* State of IPP transfer */
890 int bytes
; /* Number of bytes to POST */
891 char *filename
; /* Name of file for GET/HEAD */
892 char buf
[1024]; /* Buffer for real filename */
893 struct stat filestats
; /* File information */
894 mime_type_t
*type
; /* MIME type of file */
895 printer_t
*p
; /* Printer */
896 location_t
*best
; /* Best match for authentication */
897 static unsigned request_id
= 0; /* Request ID for temp files */
900 status
= HTTP_CONTINUE
;
902 LogMessage(L_DEBUG2
, "ReadClient: %d, used=%d, file=%d", con
->http
.fd
,
903 con
->http
.used
, con
->file
);
907 LogMessage(L_DEBUG2
, "ReadClient: http error seen...");
908 return (CloseClient(con
));
915 * Automatically check for a SSL/TLS handshake...
920 if (recv(con
->http
.fd
, buf
, 1, MSG_PEEK
) == 1 &&
921 (!buf
[0] || !strchr("DGHOPT", buf
[0])))
924 * Encrypt this connection...
927 LogMessage(L_DEBUG2
, "ReadClient: Saw first byte %02X, auto-negotiating SSL/TLS session...",
934 #endif /* HAVE_SSL */
936 switch (con
->http
.state
)
940 * See if we've received a request line...
943 if (httpGets(line
, sizeof(line
) - 1, HTTP(con
)) == NULL
)
945 LogMessage(L_DEBUG2
, "ReadClient: httpGets returned EOF...");
946 return (CloseClient(con
));
950 * Ignore blank request lines...
957 * Clear other state variables...
960 httpClearFields(HTTP(con
));
962 con
->http
.activity
= time(NULL
);
963 con
->http
.version
= HTTP_1_0
;
964 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
965 con
->http
.data_encoding
= HTTP_ENCODE_LENGTH
;
966 con
->http
.data_remaining
= 0;
967 con
->operation
= HTTP_WAITING
;
972 con
->username
[0] = '\0';
973 con
->password
[0] = '\0';
976 ClearString(&con
->command
);
977 ClearString(&con
->options
);
979 if (con
->language
!= NULL
)
981 cupsLangFree(con
->language
);
982 con
->language
= NULL
;
986 * Grab the request line...
989 switch (sscanf(line
, "%63s%1023s%63s", operation
, con
->uri
, version
))
992 LogMessage(L_ERROR
, "Bad request line \"%s\" from %s!", line
,
994 SendError(con
, HTTP_BAD_REQUEST
);
995 return (CloseClient(con
));
997 con
->http
.version
= HTTP_0_9
;
1000 if (sscanf(version
, "HTTP/%d.%d", &major
, &minor
) != 2)
1002 LogMessage(L_ERROR
, "Bad request line \"%s\" from %s!", line
,
1003 con
->http
.hostname
);
1004 SendError(con
, HTTP_BAD_REQUEST
);
1005 return (CloseClient(con
));
1010 con
->http
.version
= (http_version_t
)(major
* 100 + minor
);
1011 if (con
->http
.version
== HTTP_1_1
&& KeepAlive
)
1012 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
1014 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1018 SendError(con
, HTTP_NOT_SUPPORTED
);
1019 return (CloseClient(con
));
1025 * Handle full URLs in the request line...
1028 if (con
->uri
[0] != '/' && strcmp(con
->uri
, "*"))
1030 char method
[HTTP_MAX_URI
], /* Method/scheme */
1031 userpass
[HTTP_MAX_URI
], /* Username:password */
1032 hostname
[HTTP_MAX_URI
], /* Hostname */
1033 resource
[HTTP_MAX_URI
]; /* Resource path */
1034 int port
; /* Port number */
1038 * Separate the URI into its components...
1041 httpSeparate(con
->uri
, method
, userpass
, hostname
, &port
, resource
);
1044 * Only allow URIs with the servername, localhost, or an IP
1048 if (strcasecmp(hostname
, ServerName
) &&
1049 strcasecmp(hostname
, "localhost") &&
1050 !isdigit(hostname
[0]))
1053 * Nope, we don't do proxies...
1056 LogMessage(L_ERROR
, "Bad URI \"%s\" in request!", con
->uri
);
1057 SendError(con
, HTTP_METHOD_NOT_ALLOWED
);
1058 return (CloseClient(con
));
1062 * Copy the resource portion back into the URI; both resource and
1063 * con->uri are HTTP_MAX_URI bytes in size...
1066 strcpy(con
->uri
, resource
);
1070 * Process the request...
1073 if (strcmp(operation
, "GET") == 0)
1074 con
->http
.state
= HTTP_GET
;
1075 else if (strcmp(operation
, "PUT") == 0)
1076 con
->http
.state
= HTTP_PUT
;
1077 else if (strcmp(operation
, "POST") == 0)
1078 con
->http
.state
= HTTP_POST
;
1079 else if (strcmp(operation
, "DELETE") == 0)
1080 con
->http
.state
= HTTP_DELETE
;
1081 else if (strcmp(operation
, "TRACE") == 0)
1082 con
->http
.state
= HTTP_TRACE
;
1083 else if (strcmp(operation
, "OPTIONS") == 0)
1084 con
->http
.state
= HTTP_OPTIONS
;
1085 else if (strcmp(operation
, "HEAD") == 0)
1086 con
->http
.state
= HTTP_HEAD
;
1089 LogMessage(L_ERROR
, "Bad operation \"%s\"!", operation
);
1090 SendError(con
, HTTP_BAD_REQUEST
);
1091 return (CloseClient(con
));
1094 con
->start
= time(NULL
);
1095 con
->operation
= con
->http
.state
;
1097 LogMessage(L_DEBUG
, "ReadClient: %d %s %s HTTP/%d.%d", con
->http
.fd
,
1098 operation
, con
->uri
,
1099 con
->http
.version
/ 100, con
->http
.version
% 100);
1101 con
->http
.status
= HTTP_OK
;
1111 * Parse incoming parameters until the status changes...
1114 status
= httpUpdate(HTTP(con
));
1116 if (status
!= HTTP_OK
&& status
!= HTTP_CONTINUE
)
1118 SendError(con
, HTTP_BAD_REQUEST
);
1119 return (CloseClient(con
));
1124 break; /* Anti-compiler-warning-code */
1128 * Handle new transfers...
1131 if (status
== HTTP_OK
)
1133 if (con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
][0])
1136 * Figure out the locale from the Accept-Language and Content-Type
1140 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ',')) != NULL
)
1143 if ((ptr
= strchr(con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ';')) != NULL
)
1146 if ((ptr
= strstr(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
], "charset=")) != NULL
)
1149 * Combine language and charset, and trim any extra params in the
1153 snprintf(locale
, sizeof(locale
), "%s.%s",
1154 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], ptr
+ 8);
1156 if ((ptr
= strchr(locale
, ',')) != NULL
)
1160 snprintf(locale
, sizeof(locale
), "%s.%s",
1161 con
->http
.fields
[HTTP_FIELD_ACCEPT_LANGUAGE
], DefaultCharset
);
1163 con
->language
= cupsLangGet(locale
);
1166 con
->language
= cupsLangGet(DefaultLocale
);
1170 if (strncmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Keep-Alive", 10) == 0 &&
1172 con
->http
.keep_alive
= HTTP_KEEPALIVE_ON
;
1174 if (con
->http
.fields
[HTTP_FIELD_HOST
][0] == '\0' &&
1175 con
->http
.version
>= HTTP_1_1
)
1178 * HTTP/1.1 and higher require the "Host:" field...
1181 if (!SendError(con
, HTTP_BAD_REQUEST
))
1182 return (CloseClient(con
));
1184 else if (con
->operation
== HTTP_OPTIONS
)
1187 * Do OPTIONS command...
1190 if ((best
= FindBest(con
->uri
, con
->http
.state
)) != NULL
&&
1191 best
->type
!= AUTH_NONE
)
1193 if (!SendHeader(con
, HTTP_UNAUTHORIZED
, NULL
))
1194 return (CloseClient(con
));
1197 if (strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") == 0 &&
1198 con
->http
.tls
== NULL
)
1202 * Do encryption stuff...
1205 if (!SendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
))
1206 return (CloseClient(con
));
1208 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1209 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1210 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1211 httpPrintf(HTTP(con
), "\r\n");
1215 if (!SendError(con
, HTTP_NOT_IMPLEMENTED
))
1216 return (CloseClient(con
));
1217 #endif /* HAVE_SSL */
1220 if (con
->http
.expect
)
1222 /**** TODO: send expected header ****/
1225 if (!SendHeader(con
, HTTP_OK
, NULL
))
1226 return (CloseClient(con
));
1228 httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST, PUT\r\n");
1229 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1230 httpPrintf(HTTP(con
), "\r\n");
1232 else if (!is_path_absolute(con
->uri
))
1235 * Protect against malicious users!
1238 if (!SendError(con
, HTTP_FORBIDDEN
))
1239 return (CloseClient(con
));
1243 if (strcasecmp(con
->http
.fields
[HTTP_FIELD_CONNECTION
], "Upgrade") == 0 &&
1244 con
->http
.tls
== NULL
)
1248 * Do encryption stuff...
1251 if (!SendHeader(con
, HTTP_SWITCHING_PROTOCOLS
, NULL
))
1252 return (CloseClient(con
));
1254 httpPrintf(HTTP(con
), "Connection: Upgrade\r\n");
1255 httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n");
1256 httpPrintf(HTTP(con
), "Content-Length: 0\r\n");
1257 httpPrintf(HTTP(con
), "\r\n");
1261 if (!SendError(con
, HTTP_NOT_IMPLEMENTED
))
1262 return (CloseClient(con
));
1263 #endif /* HAVE_SSL */
1266 if ((status
= IsAuthorized(con
)) != HTTP_OK
)
1268 LogMessage(L_DEBUG2
, "ReadClient: Unauthorized request for %s...\n",
1270 SendError(con
, status
);
1271 return (CloseClient(con
));
1274 if (con
->http
.expect
)
1276 /**** TODO: send expected header ****/
1279 switch (con
->http
.state
)
1281 case HTTP_GET_SEND
:
1282 if (strncmp(con
->uri
, "/printers/", 10) == 0 &&
1283 strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd") == 0)
1286 * Send PPD file - get the real printer name since printer
1287 * names are not case sensitive but filenames can be...
1290 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1292 if ((p
= FindPrinter(con
->uri
+ 10)) != NULL
)
1293 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1296 if (!SendError(con
, HTTP_NOT_FOUND
))
1297 return (CloseClient(con
));
1303 if ((!strncmp(con
->uri
, "/admin", 6) &&
1304 strncmp(con
->uri
, "/admin/conf/", 12) &&
1305 strncmp(con
->uri
, "/admin/log/", 11)) ||
1306 !strncmp(con
->uri
, "/printers", 9) ||
1307 !strncmp(con
->uri
, "/classes", 8) ||
1308 !strncmp(con
->uri
, "/jobs", 5))
1311 * Send CGI output...
1314 if (!strncmp(con
->uri
, "/admin", 6))
1316 SetStringf(&con
->command
, "%s/cgi-bin/admin.cgi", ServerBin
);
1318 if ((ptr
= strchr(con
->uri
+ 6, '?')) != NULL
)
1319 SetStringf(&con
->options
, "admin%s", ptr
);
1321 SetString(&con
->options
, "admin");
1323 else if (!strncmp(con
->uri
, "/printers", 9))
1325 SetStringf(&con
->command
, "%s/cgi-bin/printers.cgi", ServerBin
);
1326 SetString(&con
->options
, con
->uri
+ 9);
1328 else if (!strncmp(con
->uri
, "/classes", 8))
1330 SetStringf(&con
->command
, "%s/cgi-bin/classes.cgi", ServerBin
);
1331 SetString(&con
->options
, con
->uri
+ 8);
1335 SetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi", ServerBin
);
1336 SetString(&con
->options
, con
->uri
+ 5);
1339 if (con
->options
[0] == '/')
1340 cups_strcpy(con
->options
, con
->options
+ 1);
1342 if (!SendCommand(con
, con
->command
, con
->options
))
1344 if (!SendError(con
, HTTP_NOT_FOUND
))
1345 return (CloseClient(con
));
1348 LogRequest(con
, HTTP_OK
);
1350 if (con
->http
.version
<= HTTP_1_0
)
1351 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1353 else if ((!strncmp(con
->uri
, "/admin/conf/", 12) &&
1354 (strchr(con
->uri
+ 12, '/') ||
1355 strlen(con
->uri
) == 12)) ||
1356 (!strncmp(con
->uri
, "/admin/log/", 11) &&
1357 (strchr(con
->uri
+ 11, '/') ||
1358 strlen(con
->uri
) == 11)))
1361 * GET can only be done to configuration files under
1365 if (!SendError(con
, HTTP_FORBIDDEN
))
1366 return (CloseClient(con
));
1376 if ((filename
= get_file(con
, &filestats
, buf
,
1377 sizeof(buf
))) == NULL
)
1379 if (!SendError(con
, HTTP_NOT_FOUND
))
1380 return (CloseClient(con
));
1385 type
= mimeFileType(MimeDatabase
, filename
, NULL
);
1387 if (IsCGI(con
, filename
, &filestats
, type
))
1390 * Note: con->command and con->options were set by
1394 if (!SendCommand(con
, con
->command
, con
->options
))
1396 if (!SendError(con
, HTTP_NOT_FOUND
))
1397 return (CloseClient(con
));
1400 LogRequest(con
, HTTP_OK
);
1402 if (con
->http
.version
<= HTTP_1_0
)
1403 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1407 if (!check_if_modified(con
, &filestats
))
1409 if (!SendError(con
, HTTP_NOT_MODIFIED
))
1410 return (CloseClient(con
));
1415 strcpy(line
, "text/plain");
1417 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1419 if (!SendFile(con
, HTTP_OK
, filename
, line
, &filestats
))
1420 return (CloseClient(con
));
1425 case HTTP_POST_RECV
:
1427 * See if the POST request includes a Content-Length field, and if
1428 * so check the length against any limits that are set...
1431 LogMessage(L_DEBUG2
, "POST %s", con
->uri
);
1432 LogMessage(L_DEBUG2
, "CONTENT_TYPE = %s", con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
1434 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1435 atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) > MaxRequestSize
&&
1439 * Request too large...
1442 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1443 return (CloseClient(con
));
1447 else if (atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) < 0)
1450 * Negative content lengths are invalid!
1453 if (!SendError(con
, HTTP_BAD_REQUEST
))
1454 return (CloseClient(con
));
1460 * See what kind of POST request this is; for IPP requests the
1461 * content-type field will be "application/ipp"...
1464 if (strcmp(con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
], "application/ipp") == 0)
1465 con
->request
= ippNew();
1466 else if ((strncmp(con
->uri
, "/admin", 6) == 0 &&
1467 strncmp(con
->uri
, "/admin/conf/", 12) != 0) ||
1468 strncmp(con
->uri
, "/printers", 9) == 0 ||
1469 strncmp(con
->uri
, "/classes", 8) == 0 ||
1470 strncmp(con
->uri
, "/jobs", 5) == 0)
1476 if (strncmp(con
->uri
, "/admin", 6) == 0)
1478 SetStringf(&con
->command
, "%s/cgi-bin/admin.cgi", ServerBin
);
1480 if ((ptr
= strchr(con
->uri
+ 6, '?')) != NULL
)
1481 SetStringf(&con
->options
, "admin%s", ptr
);
1483 SetString(&con
->options
, "admin");
1485 else if (strncmp(con
->uri
, "/printers", 9) == 0)
1487 SetStringf(&con
->command
, "%s/cgi-bin/printers.cgi", ServerBin
);
1488 SetString(&con
->options
, con
->uri
+ 9);
1490 else if (strncmp(con
->uri
, "/classes", 8) == 0)
1492 SetStringf(&con
->command
, "%s/cgi-bin/classes.cgi", ServerBin
);
1493 SetString(&con
->options
, con
->uri
+ 8);
1497 SetStringf(&con
->command
, "%s/cgi-bin/jobs.cgi", ServerBin
);
1498 SetString(&con
->options
, con
->uri
+ 5);
1501 if (con
->options
[0] == '/')
1502 cups_strcpy(con
->options
, con
->options
+ 1);
1504 LogMessage(L_DEBUG2
, "ReadClient: %d command=\"%s\", options = \"%s\"",
1505 con
->http
.fd
, con
->command
, con
->options
);
1507 if (con
->http
.version
<= HTTP_1_0
)
1508 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
1516 if ((filename
= get_file(con
, &filestats
, buf
,
1517 sizeof(buf
))) == NULL
)
1519 if (!SendError(con
, HTTP_NOT_FOUND
))
1520 return (CloseClient(con
));
1525 type
= mimeFileType(MimeDatabase
, filename
, NULL
);
1527 if (!IsCGI(con
, filename
, &filestats
, type
))
1530 * Only POST to CGI's...
1533 if (!SendError(con
, HTTP_UNAUTHORIZED
))
1534 return (CloseClient(con
));
1539 case HTTP_PUT_RECV
:
1541 * Validate the resource name...
1544 if (strncmp(con
->uri
, "/admin/conf/", 12) != 0 ||
1545 strchr(con
->uri
+ 12, '/') != NULL
||
1546 strlen(con
->uri
) == 12)
1549 * PUT can only be done to configuration files under
1553 if (!SendError(con
, HTTP_FORBIDDEN
))
1554 return (CloseClient(con
));
1560 * See if the PUT request includes a Content-Length field, and if
1561 * so check the length against any limits that are set...
1564 LogMessage(L_DEBUG2
, "PUT %s", con
->uri
);
1565 LogMessage(L_DEBUG2
, "CONTENT_TYPE = %s", con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
1567 if (con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
][0] &&
1568 atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) > MaxRequestSize
&&
1572 * Request too large...
1575 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1576 return (CloseClient(con
));
1580 else if (atoi(con
->http
.fields
[HTTP_FIELD_CONTENT_LENGTH
]) < 0)
1583 * Negative content lengths are invalid!
1586 if (!SendError(con
, HTTP_BAD_REQUEST
))
1587 return (CloseClient(con
));
1593 * Open a temporary file to hold the request...
1596 SetStringf(&con
->filename
, "%s/%08x", RequestRoot
, request_id
++);
1597 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1599 LogMessage(L_DEBUG2
, "ReadClient: %d REQUEST %s=%d", con
->http
.fd
,
1600 con
->filename
, con
->file
);
1604 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1605 return (CloseClient(con
));
1608 fchmod(con
->file
, 0640);
1609 fchown(con
->file
, RunUser
, Group
);
1610 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1615 SendError(con
, HTTP_NOT_IMPLEMENTED
);
1616 return (CloseClient(con
));
1619 if (strncmp(con
->uri
, "/printers/", 10) == 0 &&
1620 strcmp(con
->uri
+ strlen(con
->uri
) - 4, ".ppd") == 0)
1623 * Send PPD file - get the real printer name since printer
1624 * names are not case sensitive but filenames can be...
1627 con
->uri
[strlen(con
->uri
) - 4] = '\0'; /* Drop ".ppd" */
1629 if ((p
= FindPrinter(con
->uri
+ 10)) != NULL
)
1630 snprintf(con
->uri
, sizeof(con
->uri
), "/ppd/%s.ppd", p
->name
);
1633 if (!SendError(con
, HTTP_NOT_FOUND
))
1634 return (CloseClient(con
));
1640 if ((strncmp(con
->uri
, "/admin/", 7) == 0 &&
1641 strncmp(con
->uri
, "/admin/conf/", 12) != 0) ||
1642 strncmp(con
->uri
, "/printers/", 10) == 0 ||
1643 strncmp(con
->uri
, "/classes/", 9) == 0 ||
1644 strncmp(con
->uri
, "/jobs/", 6) == 0)
1650 if (!SendHeader(con
, HTTP_OK
, "text/html"))
1651 return (CloseClient(con
));
1653 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1654 return (CloseClient(con
));
1656 LogRequest(con
, HTTP_OK
);
1658 else if (strncmp(con
->uri
, "/admin/conf/", 12) == 0 &&
1659 (strchr(con
->uri
+ 12, '/') != NULL
||
1660 strlen(con
->uri
) == 12))
1663 * HEAD can only be done to configuration files under
1667 if (!SendError(con
, HTTP_FORBIDDEN
))
1668 return (CloseClient(con
));
1672 else if ((filename
= get_file(con
, &filestats
, buf
,
1673 sizeof(buf
))) == NULL
)
1675 if (!SendHeader(con
, HTTP_NOT_FOUND
, "text/html"))
1676 return (CloseClient(con
));
1678 LogRequest(con
, HTTP_NOT_FOUND
);
1680 else if (!check_if_modified(con
, &filestats
))
1682 if (!SendError(con
, HTTP_NOT_MODIFIED
))
1683 return (CloseClient(con
));
1685 LogRequest(con
, HTTP_NOT_MODIFIED
);
1693 type
= mimeFileType(MimeDatabase
, filename
, NULL
);
1695 strcpy(line
, "text/plain");
1697 snprintf(line
, sizeof(line
), "%s/%s", type
->super
, type
->type
);
1699 if (!SendHeader(con
, HTTP_OK
, line
))
1700 return (CloseClient(con
));
1702 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n",
1703 httpGetDateString(filestats
.st_mtime
)) < 0)
1704 return (CloseClient(con
));
1706 if (httpPrintf(HTTP(con
), "Content-Length: %lu\r\n",
1707 (unsigned long)filestats
.st_size
) < 0)
1708 return (CloseClient(con
));
1710 LogRequest(con
, HTTP_OK
);
1713 if (httpPrintf(HTTP(con
), "\r\n") < 0)
1714 return (CloseClient(con
));
1716 con
->http
.state
= HTTP_WAITING
;
1720 break; /* Anti-compiler-warning-code */
1726 * Handle any incoming data...
1729 switch (con
->http
.state
)
1731 case HTTP_PUT_RECV
:
1732 LogMessage(L_DEBUG2
, "ReadClient: %d con->data_encoding = %s, con->data_remaining = %d, con->file = %d",
1734 con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
? "chunked" : "length",
1735 con
->http
.data_remaining
, con
->file
);
1737 if ((bytes
= httpRead(HTTP(con
), line
, sizeof(line
))) < 0)
1738 return (CloseClient(con
));
1741 con
->bytes
+= bytes
;
1743 LogMessage(L_DEBUG2
, "ReadClient: %d writing %d bytes to %d",
1744 con
->http
.fd
, bytes
, con
->file
);
1746 if (write(con
->file
, line
, bytes
) < bytes
)
1748 LogMessage(L_ERROR
, "ReadClient: Unable to write %d bytes to %s: %s",
1749 bytes
, con
->filename
, strerror(errno
));
1751 LogMessage(L_DEBUG2
, "ReadClient: Closing data file %d...",
1756 unlink(con
->filename
);
1757 ClearString(&con
->filename
);
1759 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1760 return (CloseClient(con
));
1764 if (con
->http
.state
== HTTP_WAITING
)
1767 * End of file, see how big it is...
1770 fstat(con
->file
, &filestats
);
1772 LogMessage(L_DEBUG2
, "ReadClient: %d Closing data file %d, size = %d.",
1773 con
->http
.fd
, con
->file
, (int)filestats
.st_size
);
1778 if (filestats
.st_size
> MaxRequestSize
&&
1782 * Request is too big; remove it and send an error...
1785 LogMessage(L_DEBUG2
, "ReadClient: %d Removing temp file %s",
1786 con
->http
.fd
, con
->filename
);
1787 unlink(con
->filename
);
1788 ClearString(&con
->filename
);
1790 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1791 return (CloseClient(con
));
1795 * Install the configuration file...
1798 status
= install_conf_file(con
);
1801 * Return the status to the client...
1804 if (!SendError(con
, status
))
1805 return (CloseClient(con
));
1809 case HTTP_POST_RECV
:
1810 LogMessage(L_DEBUG2
, "ReadClient: %d con->data_encoding = %s, con->data_remaining = %d, con->file = %d",
1812 con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
? "chunked" : "length",
1813 con
->http
.data_remaining
, con
->file
);
1815 if (con
->request
!= NULL
)
1818 * Grab any request data from the connection...
1821 if ((ipp_state
= ippRead(&(con
->http
), con
->request
)) == IPP_ERROR
)
1823 LogMessage(L_ERROR
, "ReadClient: %d IPP Read Error!",
1826 SendError(con
, HTTP_BAD_REQUEST
);
1827 return (CloseClient(con
));
1829 else if (ipp_state
!= IPP_DATA
)
1831 if (con
->http
.state
== HTTP_POST_SEND
)
1833 SendError(con
, HTTP_BAD_REQUEST
);
1834 return (CloseClient(con
));
1840 con
->bytes
+= ippLength(con
->request
);
1843 if (con
->file
< 0 && con
->http
.state
!= HTTP_POST_SEND
)
1846 * Create a file as needed for the request data...
1849 SetStringf(&con
->filename
, "%s/%08x", RequestRoot
, request_id
++);
1850 con
->file
= open(con
->filename
, O_WRONLY
| O_CREAT
| O_TRUNC
, 0640);
1852 LogMessage(L_DEBUG2
, "ReadClient: %d REQUEST %s=%d", con
->http
.fd
,
1853 con
->filename
, con
->file
);
1857 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1858 return (CloseClient(con
));
1861 fchmod(con
->file
, 0640);
1862 fchown(con
->file
, RunUser
, Group
);
1863 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
1866 if (con
->http
.state
!= HTTP_POST_SEND
)
1868 if ((bytes
= httpRead(HTTP(con
), line
, sizeof(line
))) < 0)
1869 return (CloseClient(con
));
1872 con
->bytes
+= bytes
;
1874 LogMessage(L_DEBUG2
, "ReadClient: %d writing %d bytes to %d",
1875 con
->http
.fd
, bytes
, con
->file
);
1877 if (write(con
->file
, line
, bytes
) < bytes
)
1879 LogMessage(L_ERROR
, "ReadClient: Unable to write %d bytes to %s: %s",
1880 bytes
, con
->filename
, strerror(errno
));
1882 LogMessage(L_DEBUG2
, "ReadClient: Closing file %d...",
1887 unlink(con
->filename
);
1888 ClearString(&con
->filename
);
1890 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1891 return (CloseClient(con
));
1894 else if (con
->http
.state
== HTTP_POST_RECV
)
1895 return (1); /* ??? */
1896 else if (con
->http
.state
!= HTTP_POST_SEND
)
1897 return (CloseClient(con
));
1900 if (con
->http
.state
== HTTP_POST_SEND
)
1904 fstat(con
->file
, &filestats
);
1906 LogMessage(L_DEBUG2
, "ReadClient: %d Closing data file %d, size = %d.",
1907 con
->http
.fd
, con
->file
, (int)filestats
.st_size
);
1912 if (filestats
.st_size
> MaxRequestSize
&&
1916 * Request is too big; remove it and send an error...
1919 LogMessage(L_DEBUG2
, "ReadClient: %d Removing temp file %s",
1920 con
->http
.fd
, con
->filename
);
1921 unlink(con
->filename
);
1922 ClearString(&con
->filename
);
1927 * Delete any IPP request data...
1930 ippDelete(con
->request
);
1931 con
->request
= NULL
;
1934 if (!SendError(con
, HTTP_REQUEST_TOO_LARGE
))
1935 return (CloseClient(con
));
1940 if (!SendCommand(con
, con
->command
, con
->options
))
1942 if (!SendError(con
, HTTP_NOT_FOUND
))
1943 return (CloseClient(con
));
1946 LogRequest(con
, HTTP_OK
);
1951 return (ProcessIPPRequest(con
));
1956 break; /* Anti-compiler-warning-code */
1959 if (!con
->http
.keep_alive
&& con
->http
.state
== HTTP_WAITING
)
1960 return (CloseClient(con
));
1967 * 'SendCommand()' - Send output from a command via HTTP.
1970 int /* O - 1 on success, 0 on failure */
1971 SendCommand(client_t
*con
, /* I - Client connection */
1972 char *command
, /* I - Command to run */
1973 char *options
) /* I - Command-line options */
1975 int fd
; /* Standard input file descriptor */
1979 fd
= open(con
->filename
, O_RDONLY
);
1981 fd
= open("/dev/null", O_RDONLY
);
1985 LogMessage(L_ERROR
, "SendCommand: %d Unable to open \"%s\" for reading: %s",
1986 con
->http
.fd
, con
->filename
? con
->filename
: "/dev/null",
1991 fcntl(fd
, F_SETFD
, fcntl(fd
, F_GETFD
) | FD_CLOEXEC
);
1993 con
->pipe_pid
= pipe_command(con
, fd
, &(con
->file
), command
, options
);
1997 LogMessage(L_INFO
, "Started \"%s\" (pid=%d)", command
, con
->pipe_pid
);
1999 LogMessage(L_DEBUG
, "SendCommand: %d file=%d", con
->http
.fd
, con
->file
);
2001 if (con
->pipe_pid
== 0)
2004 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
2006 LogMessage(L_DEBUG2
, "SendCommand: Adding fd %d to InputSet...", con
->file
);
2007 LogMessage(L_DEBUG2
, "SendCommand: Adding fd %d to OutputSet...",
2010 FD_SET(con
->file
, InputSet
);
2011 FD_SET(con
->http
.fd
, OutputSet
);
2013 con
->sent_header
= 0;
2014 con
->file_ready
= 0;
2015 con
->got_fields
= 0;
2023 * 'SendError()' - Send an error message via HTTP.
2026 int /* O - 1 if successful, 0 otherwise */
2027 SendError(client_t
*con
, /* I - Connection */
2028 http_status_t code
) /* I - Error code */
2030 char message
[1024]; /* Message for user */
2034 * Put the request in the access_log file...
2037 LogRequest(con
, code
);
2039 LogMessage(L_DEBUG
, "SendError: %d code=%d (%s)", con
->http
.fd
, code
,
2043 * To work around bugs in some proxies, don't use Keep-Alive for some
2047 if (code
>= HTTP_BAD_REQUEST
)
2048 con
->http
.keep_alive
= HTTP_KEEPALIVE_OFF
;
2051 * Send an error message back to the client. If the error code is a
2052 * 400 or 500 series, make sure the message contains some text, too!
2055 if (!SendHeader(con
, code
, NULL
))
2059 if (code
== HTTP_UPGRADE_REQUIRED
)
2060 if (httpPrintf(HTTP(con
), "Connection: Upgrade\r\n") < 0)
2063 if (httpPrintf(HTTP(con
), "Upgrade: TLS/1.0,HTTP/1.1\r\n") < 0)
2065 #endif /* HAVE_SSL */
2067 if ((con
->http
.version
>= HTTP_1_1
&& !con
->http
.keep_alive
) ||
2068 (code
>= HTTP_BAD_REQUEST
&& code
!= HTTP_UPGRADE_REQUIRED
))
2070 if (httpPrintf(HTTP(con
), "Connection: close\r\n") < 0)
2074 if (code
>= HTTP_BAD_REQUEST
)
2077 * Send a human-readable error message.
2080 snprintf(message
, sizeof(message
),
2081 "<HTML><HEAD><TITLE>%d %s</TITLE></HEAD>"
2082 "<BODY><H1>%s</H1>%s</BODY></HTML>\n",
2083 code
, httpStatus(code
), httpStatus(code
),
2084 con
->language
? con
->language
->messages
[code
] :
2087 if (httpPrintf(HTTP(con
), "Content-Type: text/html; charset=utf-8\r\n") < 0)
2089 if (httpPrintf(HTTP(con
), "Content-Length: %d\r\n",
2090 (int)strlen(message
)) < 0)
2092 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2094 if (httpPrintf(HTTP(con
), "%s", message
) < 0)
2097 else if (httpPrintf(HTTP(con
), "\r\n") < 0)
2100 con
->http
.state
= HTTP_WAITING
;
2107 * 'SendFile()' - Send a file via HTTP.
2111 SendFile(client_t
*con
,
2115 struct stat
*filestats
)
2117 con
->file
= open(filename
, O_RDONLY
);
2119 LogMessage(L_DEBUG
, "SendFile: %d file=%d", con
->http
.fd
, con
->file
);
2124 fcntl(con
->file
, F_SETFD
, fcntl(con
->file
, F_GETFD
) | FD_CLOEXEC
);
2128 if (!SendHeader(con
, code
, type
))
2131 if (httpPrintf(HTTP(con
), "Last-Modified: %s\r\n", httpGetDateString(filestats
->st_mtime
)) < 0)
2133 if (httpPrintf(HTTP(con
), "Content-Length: %lu\r\n",
2134 (unsigned long)filestats
->st_size
) < 0)
2136 if (httpPrintf(HTTP(con
), "\r\n") < 0)
2139 LogMessage(L_DEBUG2
, "SendFile: Adding fd %d to OutputSet...", con
->http
.fd
);
2141 FD_SET(con
->http
.fd
, OutputSet
);
2148 * 'SendHeader()' - Send an HTTP request.
2151 int /* O - 1 on success, 0 on failure */
2152 SendHeader(client_t
*con
, /* I - Client to send to */
2153 http_status_t code
, /* I - HTTP status code */
2154 char *type
) /* I - MIME type of document */
2156 location_t
*loc
; /* Authentication location */
2159 if (httpPrintf(HTTP(con
), "HTTP/%d.%d %d %s\r\n", con
->http
.version
/ 100,
2160 con
->http
.version
% 100, code
, httpStatus(code
)) < 0)
2162 if (httpPrintf(HTTP(con
), "Date: %s\r\n", httpGetDateString(time(NULL
))) < 0)
2165 if (httpPrintf(HTTP(con
), "Server: %s\r\n", ServerHeader
) < 0)
2167 if (con
->http
.keep_alive
&& con
->http
.version
>= HTTP_1_0
)
2169 if (httpPrintf(HTTP(con
), "Connection: Keep-Alive\r\n") < 0)
2171 if (httpPrintf(HTTP(con
), "Keep-Alive: timeout=%d\r\n", KeepAliveTimeout
) < 0)
2174 if (code
== HTTP_METHOD_NOT_ALLOWED
)
2175 if (httpPrintf(HTTP(con
), "Allow: GET, HEAD, OPTIONS, POST\r\n") < 0)
2178 if (code
== HTTP_UNAUTHORIZED
)
2181 * This already succeeded in IsAuthorized...
2184 loc
= FindBest(con
->uri
, con
->http
.state
);
2186 if (loc
->type
!= AUTH_DIGEST
)
2188 if (httpPrintf(HTTP(con
), "WWW-Authenticate: Basic realm=\"CUPS\"\r\n") < 0)
2193 if (httpPrintf(HTTP(con
), "WWW-Authenticate: Digest realm=\"CUPS\", "
2194 "nonce=\"%s\"\r\n", con
->http
.hostname
) < 0)
2199 if (con
->language
!= NULL
)
2201 if (httpPrintf(HTTP(con
), "Content-Language: %s\r\n",
2202 con
->language
->language
) < 0)
2208 if (!strcmp(type
, "text/html"))
2210 if (httpPrintf(HTTP(con
), "Content-Type: text/html; charset=utf-8\r\n") < 0)
2213 else if (httpPrintf(HTTP(con
), "Content-Type: %s\r\n", type
) < 0)
2222 * 'UpdateCGI()' - Read status messages from CGI scripts and programs.
2228 char *ptr
, /* Pointer to end of line in buffer */
2229 message
[1024]; /* Pointer to message text */
2230 int loglevel
; /* Log level for message */
2233 while ((ptr
= cupsdStatBufUpdate(CGIStatusBuffer
, &loglevel
,
2234 message
, sizeof(message
))) != NULL
)
2235 if (!strchr(CGIStatusBuffer
->buffer
, '\n'))
2241 * Fatal error on pipe - should never happen!
2244 LogMessage(L_CRIT
, "UpdateCGI: error reading from CGI error pipe - %s",
2251 * 'WriteClient()' - Write data to a client as needed.
2254 int /* O - 1 if success, 0 if fail */
2255 WriteClient(client_t
*con
) /* I - Client connection */
2257 int bytes
; /* Number of bytes written */
2258 char buf
[HTTP_MAX_BUFFER
+ 1];/* Data buffer */
2259 char *bufptr
; /* Pointer into buffer */
2260 ipp_state_t ipp_state
; /* IPP state value */
2264 LogMessage(L_DEBUG2
, "WriteClient(con=%p) %d response=%p, file=%d pipe_pid=%d",
2265 con
, con
->http
.fd
, con
->response
, con
->file
, con
->pipe_pid
);
2268 if (con
->http
.state
!= HTTP_GET_SEND
&&
2269 con
->http
.state
!= HTTP_POST_SEND
)
2272 if (con
->response
!= NULL
)
2274 ipp_state
= ippWrite(&(con
->http
), con
->response
);
2275 bytes
= ipp_state
!= IPP_ERROR
&& ipp_state
!= IPP_DATA
;
2277 else if ((bytes
= read(con
->file
, buf
, HTTP_MAX_BUFFER
)) > 0)
2280 LogMessage(L_DEBUG2
, "WriteClient: Read %d bytes from file %d...",
2284 if (con
->pipe_pid
&& !con
->got_fields
)
2287 * Inspect the data for Content-Type and other fields.
2292 for (bufptr
= buf
; !con
->got_fields
&& *bufptr
; bufptr
++)
2293 if (*bufptr
== '\n')
2296 * Send line to client...
2299 if (bufptr
> buf
&& bufptr
[-1] == '\r')
2303 if (!con
->sent_header
)
2306 * Handle redirection and CGI status codes...
2309 if (!strncasecmp(buf
, "Location:", 9))
2310 SendHeader(con
, HTTP_SEE_OTHER
, NULL
);
2311 else if (!strncasecmp(buf
, "Status:", 7))
2312 SendHeader(con
, atoi(buf
+ 7), NULL
);
2314 SendHeader(con
, HTTP_OK
, NULL
);
2316 if (con
->http
.version
== HTTP_1_1
)
2318 con
->http
.data_encoding
= HTTP_ENCODE_CHUNKED
;
2320 if (httpPrintf(HTTP(con
), "Transfer-Encoding: chunked\r\n") < 0)
2324 con
->sent_header
= 1;
2327 if (strncasecmp(buf
, "Status:", 7))
2328 httpPrintf(HTTP(con
), "%s\r\n", buf
);
2330 LogMessage(L_DEBUG2
, "WriteClient: %d %s", con
->http
.fd
, buf
);
2336 bytes
-= (bufptr
- buf
);
2337 memmove(buf
, bufptr
, bytes
+ 1);
2341 * See if the line was empty...
2344 if (con
->field_col
== 0)
2345 con
->got_fields
= 1;
2349 else if (*bufptr
!= '\r')
2352 if (bytes
> 0 && !con
->got_fields
)
2355 * Remaining text needs to go out...
2358 httpPrintf(HTTP(con
), "%s", buf
);
2360 con
->http
.activity
= time(NULL
);
2363 else if (bytes
== 0)
2365 con
->http
.activity
= time(NULL
);
2370 if (httpWrite(HTTP(con
), buf
, bytes
) < 0)
2376 con
->bytes
+= bytes
;
2381 LogRequest(con
, HTTP_OK
);
2383 if (con
->http
.data_encoding
== HTTP_ENCODE_CHUNKED
)
2385 if (httpPrintf(HTTP(con
), "0\r\n\r\n") < 0)
2392 con
->http
.state
= HTTP_WAITING
;
2394 LogMessage(L_DEBUG2
, "WriteClient: Removing fd %d from OutputSet...",
2397 FD_CLR(con
->http
.fd
, OutputSet
);
2401 if (FD_ISSET(con
->file
, InputSet
))
2403 LogMessage(L_DEBUG2
, "WriteClient: Removing fd %d from InputSet...",
2405 FD_CLR(con
->file
, InputSet
);
2409 cupsdEndProcess(con
->pipe_pid
, 0);
2411 LogMessage(L_DEBUG2
, "WriteClient: %d Closing data file %d.",
2412 con
->http
.fd
, con
->file
);
2421 LogMessage(L_DEBUG2
, "WriteClient: %d Removing temp file %s",
2422 con
->http
.fd
, con
->filename
);
2423 unlink(con
->filename
);
2424 ClearString(&con
->filename
);
2427 if (con
->request
!= NULL
)
2429 ippDelete(con
->request
);
2430 con
->request
= NULL
;
2433 if (con
->response
!= NULL
)
2435 ippDelete(con
->response
);
2436 con
->response
= NULL
;
2439 ClearString(&con
->command
);
2440 ClearString(&con
->options
);
2442 if (!con
->http
.keep_alive
)
2450 con
->file_ready
= 0;
2452 if (con
->pipe_pid
&& !FD_ISSET(con
->file
, InputSet
))
2454 LogMessage(L_DEBUG2
, "WriteClient: Adding fd %d to InputSet...", con
->file
);
2455 FD_SET(con
->file
, InputSet
);
2460 LogMessage(L_DEBUG2
, "WriteClient: %d %d bytes", con
->http
.fd
, bytes
);
2462 con
->http
.activity
= time(NULL
);
2469 * 'check_if_modified()' - Decode an "If-Modified-Since" line.
2472 static int /* O - 1 if modified since */
2473 check_if_modified(client_t
*con
, /* I - Client connection */
2474 struct stat
*filestats
) /* I - File information */
2476 char *ptr
; /* Pointer into field */
2477 time_t date
; /* Time/date value */
2478 int size
; /* Size/length value */
2483 ptr
= con
->http
.fields
[HTTP_FIELD_IF_MODIFIED_SINCE
];
2488 LogMessage(L_DEBUG2
, "check_if_modified: %d If-Modified-Since=\"%s\"",
2491 while (*ptr
!= '\0')
2493 while (isspace(*ptr
) || *ptr
== ';')
2496 if (strncasecmp(ptr
, "length=", 7) == 0)
2501 while (isdigit(*ptr
))
2504 else if (isalpha(*ptr
))
2506 date
= httpGetDateTime(ptr
);
2507 while (*ptr
!= '\0' && *ptr
!= ';')
2512 LogMessage(L_DEBUG2
, "check_if_modified: %d sizes=%d,%d dates=%d,%d",
2513 con
->http
.fd
, size
, (int)filestats
->st_size
, (int)date
,
2514 (int)filestats
->st_mtime
);
2516 return ((size
!= filestats
->st_size
&& size
!= 0) ||
2517 (date
< filestats
->st_mtime
&& date
!= 0) ||
2518 (size
== 0 && date
== 0));
2523 * 'decode_auth()' - Decode an authorization string.
2527 decode_auth(client_t
*con
) /* I - Client to decode to */
2529 char *s
, /* Authorization string */
2530 value
[1024]; /* Value string */
2531 const char *username
; /* Certificate username */
2535 * Decode the string...
2538 s
= con
->http
.fields
[HTTP_FIELD_AUTHORIZATION
];
2540 LogMessage(L_DEBUG2
, "decode_auth(%p): Authorization string = \"%s\"",
2543 if (strncmp(s
, "Basic", 5) == 0)
2549 httpDecode64(value
, s
);
2552 * Pull the username and password out...
2555 if ((s
= strchr(value
, ':')) == NULL
)
2557 LogMessage(L_DEBUG
, "decode_auth: %d no colon in auth string \"%s\"",
2558 con
->http
.fd
, value
);
2564 strlcpy(con
->username
, value
, sizeof(con
->username
));
2565 strlcpy(con
->password
, s
, sizeof(con
->password
));
2567 else if (strncmp(s
, "Local", 5) == 0)
2573 if ((username
= FindCert(s
)) != NULL
)
2574 strlcpy(con
->username
, username
, sizeof(con
->username
));
2576 else if (strncmp(s
, "Digest", 5) == 0)
2579 * Get the username and password from the Digest attributes...
2582 if (httpGetSubField(&(con
->http
), HTTP_FIELD_AUTHORIZATION
, "username",
2584 strlcpy(con
->username
, value
, sizeof(con
->username
));
2586 if (httpGetSubField(&(con
->http
), HTTP_FIELD_AUTHORIZATION
, "response",
2588 strlcpy(con
->password
, value
, sizeof(con
->password
));
2591 LogMessage(L_DEBUG2
, "decode_auth: %d username=\"%s\"",
2592 con
->http
.fd
, con
->username
);
2597 * 'get_file()' - Get a filename and state info.
2600 static char * /* O - Real filename */
2601 get_file(client_t
*con
, /* I - Client connection */
2602 struct stat
*filestats
, /* O - File information */
2603 char *filename
, /* IO - Filename buffer */
2604 int len
) /* I - Buffer length */
2606 int status
; /* Status of filesystem calls */
2607 char *ptr
; /* Pointer info filename */
2608 int plen
; /* Remaining length after pointer */
2612 * Need to add DocumentRoot global...
2615 if (!strncmp(con
->uri
, "/ppd/", 5))
2616 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
);
2617 else if (!strncmp(con
->uri
, "/admin/conf/", 12))
2618 snprintf(filename
, len
, "%s%s", ServerRoot
, con
->uri
+ 11);
2619 else if (!strncmp(con
->uri
, "/admin/log/", 11))
2621 if (!strcmp(con
->uri
+ 11, "access_log") && AccessLog
[0] == '/')
2622 strlcpy(filename
, AccessLog
, len
);
2623 else if (!strcmp(con
->uri
+ 11, "error_log") && ErrorLog
[0] == '/')
2624 strlcpy(filename
, ErrorLog
, len
);
2625 else if (!strcmp(con
->uri
+ 11, "page_log") && PageLog
[0] == '/')
2626 strlcpy(filename
, PageLog
, len
);
2630 else if (con
->language
!= NULL
)
2631 snprintf(filename
, len
, "%s/%s%s", DocumentRoot
, con
->language
->language
,
2634 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2636 if ((ptr
= strchr(filename
, '?')) != NULL
)
2640 * Grab the status for this language; if there isn't a language-specific file
2641 * then fallback to the default one...
2644 if ((status
= stat(filename
, filestats
)) != 0 && con
->language
!= NULL
)
2647 * Drop the language prefix and try the current directory...
2650 if (strncmp(con
->uri
, "/ppd/", 5) != 0 &&
2651 strncmp(con
->uri
, "/admin/conf/", 12) != 0)
2653 snprintf(filename
, len
, "%s%s", DocumentRoot
, con
->uri
);
2655 if ((ptr
= strchr(filename
, '?')) != NULL
)
2658 status
= stat(filename
, filestats
);
2663 * If we're found a directory, get the index.html file instead...
2666 if (!status
&& S_ISDIR(filestats
->st_mode
))
2668 if (filename
[strlen(filename
) - 1] != '/')
2669 strlcat(filename
, "/", len
);
2671 ptr
= filename
+ strlen(filename
);
2672 plen
= len
- (ptr
- filename
);
2674 strlcpy(ptr
, "index.html", plen
);
2675 status
= stat(filename
, filestats
);
2680 strlcpy(ptr
, "index.class", plen
);
2681 status
= stat(filename
, filestats
);
2683 #endif /* HAVE_JAVA */
2688 strlcpy(ptr
, "index.pl", plen
);
2689 status
= stat(filename
, filestats
);
2691 #endif /* HAVE_PERL */
2696 strlcpy(ptr
, "index.php", plen
);
2697 status
= stat(filename
, filestats
);
2699 #endif /* HAVE_PHP */
2704 strlcpy(ptr
, "index.pyc", plen
);
2705 status
= stat(filename
, filestats
);
2710 strlcpy(ptr
, "index.py", plen
);
2711 status
= stat(filename
, filestats
);
2713 #endif /* HAVE_PYTHON */
2716 LogMessage(L_DEBUG2
, "get_file: %d filename=%s size=%d",
2717 con
->http
.fd
, filename
, status
? -1 : (int)filestats
->st_size
);
2727 * 'install_conf_file()' - Install a configuration file.
2730 static http_status_t
/* O - Status */
2731 install_conf_file(client_t
*con
) /* I - Connection */
2733 cups_file_t
*in
, /* Input file */
2734 *out
; /* Output file */
2735 char buffer
[1024]; /* Copy buffer */
2736 int bytes
; /* Number of bytes */
2737 char conffile
[1024], /* Configuration filename */
2738 newfile
[1024], /* New config filename */
2739 oldfile
[1024]; /* Old config filename */
2740 struct stat confinfo
; /* Config file info */
2744 * First construct the filenames...
2747 snprintf(conffile
, sizeof(conffile
), "%s%s", ServerRoot
, con
->uri
+ 11);
2748 snprintf(newfile
, sizeof(newfile
), "%s%s.N", ServerRoot
, con
->uri
+ 11);
2749 snprintf(oldfile
, sizeof(oldfile
), "%s%s.O", ServerRoot
, con
->uri
+ 11);
2751 LogMessage(L_INFO
, "Installing config file \"%s\"...", conffile
);
2754 * Get the owner, group, and permissions of the configuration file.
2755 * If it doesn't exist, assign it to the User and Group in the
2756 * cupsd.conf file with mode 0640 permissions.
2759 if (stat(conffile
, &confinfo
))
2761 confinfo
.st_uid
= User
;
2762 confinfo
.st_gid
= Group
;
2763 confinfo
.st_mode
= ConfigFilePerm
;
2767 * Open the request file and new config file...
2770 if ((in
= cupsFileOpen(con
->filename
, "rb")) == NULL
)
2772 LogMessage(L_ERROR
, "Unable to open request file \"%s\" - %s",
2773 con
->filename
, strerror(errno
));
2774 return (HTTP_SERVER_ERROR
);
2777 if ((out
= cupsFileOpen(newfile
, "wb")) == NULL
)
2780 LogMessage(L_ERROR
, "Unable to open config file \"%s\" - %s",
2781 newfile
, strerror(errno
));
2782 return (HTTP_SERVER_ERROR
);
2785 fchmod(cupsFileNumber(out
), confinfo
.st_mode
);
2786 fchown(cupsFileNumber(out
), confinfo
.st_uid
, confinfo
.st_gid
);
2789 * Copy from the request to the new config file...
2792 while ((bytes
= cupsFileRead(in
, buffer
, sizeof(buffer
))) > 0)
2793 if (cupsFileWrite(out
, buffer
, bytes
) < bytes
)
2795 LogMessage(L_ERROR
, "Unable to copy to config file \"%s\" - %s",
2796 newfile
, strerror(errno
));
2802 return (HTTP_SERVER_ERROR
);
2806 * Close the files...
2810 if (cupsFileClose(out
))
2812 LogMessage(L_ERROR
, "Error file closing config file \"%s\" - %s",
2813 newfile
, strerror(errno
));
2817 return (HTTP_SERVER_ERROR
);
2821 * Remove the request file...
2824 unlink(con
->filename
);
2825 ClearString(&con
->filename
);
2828 * Unlink the old backup, rename the current config file to the backup
2829 * filename, and rename the new config file to the config file name...
2832 if (unlink(oldfile
))
2833 if (errno
!= ENOENT
)
2835 LogMessage(L_ERROR
, "Unable to remove backup config file \"%s\" - %s",
2836 oldfile
, strerror(errno
));
2840 return (HTTP_SERVER_ERROR
);
2843 if (rename(conffile
, oldfile
))
2844 if (errno
!= ENOENT
)
2846 LogMessage(L_ERROR
, "Unable to rename old config file \"%s\" - %s",
2847 conffile
, strerror(errno
));
2851 return (HTTP_SERVER_ERROR
);
2854 if (rename(newfile
, conffile
))
2856 LogMessage(L_ERROR
, "Unable to rename new config file \"%s\" - %s",
2857 newfile
, strerror(errno
));
2859 rename(oldfile
, conffile
);
2862 return (HTTP_SERVER_ERROR
);
2866 * If the cupsd.conf file was updated, set the NeedReload flag...
2869 if (strcmp(con
->uri
, "/admin/conf/cupsd.conf") == 0)
2870 NeedReload
= RELOAD_CUPSD
;
2872 NeedReload
= RELOAD_ALL
;
2874 ReloadTime
= time(NULL
);
2877 * Return that the file was created successfully...
2880 return (HTTP_CREATED
);
2885 * 'is_path_absolute()' - Is a path absolute and free of relative elements (i.e. "..").
2888 static int /* O - 0 if relative, 1 if absolute */
2889 is_path_absolute(const char *path
) /* I - Input path */
2892 * Check for a leading slash...
2899 * Check for "/.." in the path...
2902 while ((path
= strstr(path
, "/..")) != NULL
)
2904 if (!path
[3] || path
[3] == '/')
2911 * If we haven't found any relative paths, return 1 indicating an
2920 * 'pipe_command()' - Pipe the output of a command to the remote client.
2923 static int /* O - Process ID */
2924 pipe_command(client_t
*con
, /* I - Client connection */
2925 int infile
, /* I - Standard input for command */
2926 int *outfile
, /* O - Standard output for command */
2927 char *command
, /* I - Command to run */
2928 char *options
) /* I - Options for command */
2930 int i
; /* Looping var */
2931 int pid
; /* Process ID */
2932 char *commptr
; /* Command string pointer */
2933 char *uriptr
; /* URI string pointer */
2934 int fds
[2]; /* Pipe FDs */
2935 int argc
; /* Number of arguments */
2936 int envc
; /* Number of environment variables */
2937 char argbuf
[10240], /* Argument buffer */
2938 *argv
[100], /* Argument strings */
2939 *envp
[100]; /* Environment variables */
2940 char content_length
[1024], /* CONTENT_LENGTH environment variable */
2941 content_type
[1024], /* CONTENT_TYPE environment variable */
2942 cups_datadir
[1024], /* CUPS_DATADIR environment variable */
2943 cups_serverbin
[1024], /* CUPS_SERVERBIN environment variable */
2944 cups_serverroot
[1024], /* CUPS_SERVERROOT environment variable */
2945 cups_statedir
[1024], /* CUPS_STATEDIR environment variable */
2946 http_cookie
[1024], /* HTTP_COOKIE environment variable */
2947 http_user_agent
[1024], /* HTTP_USER_AGENT environment variable */
2948 ipp_port
[1024], /* IPP_PORT environment variable */
2949 lang
[1024], /* LANG environment variable */
2950 ld_library_path
[1024], /* LD_LIBRARY_PATH environment variable */
2951 ld_preload
[1024], /* LD_PRELOAD environment variable */
2952 dyld_library_path
[1024],/* DYLD_LIBRARY_PATH environment variable */
2953 shlib_path
[1024], /* SHLIB_PATH environment variable */
2954 nlspath
[1024], /* NLSPATH environment variable */
2955 *query_string
, /* QUERY_STRING env variable */
2956 remote_addr
[1024], /* REMOTE_ADDR environment variable */
2957 remote_host
[1024], /* REMOTE_HOST environment variable */
2958 remote_user
[1024], /* REMOTE_USER environment variable */
2959 script_name
[1024], /* SCRIPT_NAME environment variable */
2960 server_name
[1024], /* SERVER_NAME environment variable */
2961 server_port
[1024], /* SERVER_PORT environment variable */
2962 tmpdir
[1024], /* TMPDIR environment variable */
2963 vg_args
[1024], /* VG_ARGS environment variable */
2964 ld_assume_kernel
[1024]; /* LD_ASSUME_KERNEL environment variable */
2965 static const char * const locale_encodings
[] =
2966 { /* Locale charset names */
2967 "ASCII", "ISO8859-1", "ISO8859-2", "ISO8859-3",
2968 "ISO8859-4", "ISO8859-5", "ISO8859-6", "ISO8859-7",
2969 "ISO8859-8", "ISO8859-9", "ISO8859-10", "UTF-8",
2970 "ISO8859-13", "ISO8859-14", "ISO8859-15", "CP874",
2971 "CP1250", "CP1251", "CP1252", "CP1253",
2972 "CP1254", "CP1255", "CP1256", "CP1257",
2973 "CP1258", "KOI8R", "KOI8U", "ISO8859-11",
2974 "ISO8859-16", "", "", "",
2985 "CP932", "CP936", "CP949", "CP950",
2986 "CP1361", "", "", "",
3003 "EUC-CN", "EUC-JP", "EUC-KR", "EUC-TW"
3005 static const char * const encryptions
[] =
3007 "CUPS_ENCRYPTION=IfRequested",
3008 "CUPS_ENCRYPTION=Never",
3009 "CUPS_ENCRYPTION=Required",
3010 "CUPS_ENCRYPTION=Always"
3015 * Parse a copy of the options string, which is of the form:
3017 * name argument+argument+argument
3018 * name?argument+argument+argument
3019 * name param=value¶m=value
3020 * name?param=value¶m=value
3022 * If the string contains an "=" character after the initial name,
3023 * then we treat it as a HTTP GET form request and make a copy of
3024 * the remaining string for the environment variable.
3026 * The string is always parsed out as command-line arguments, to
3027 * be consistent with Apache...
3030 LogMessage(L_DEBUG2
, "pipe_command: command=\"%s\", options=\"%s\"",
3033 strlcpy(argbuf
, options
, sizeof(argbuf
));
3036 query_string
= NULL
;
3038 for (commptr
= argbuf
, argc
= 1; *commptr
!= '\0' && argc
< 99; commptr
++)
3041 * Break arguments whenever we see a + or space...
3044 if (*commptr
== ' ' || *commptr
== '+' || (*commptr
== '?' && argc
== 1))
3047 * Terminate the current string and skip trailing whitespace...
3052 while (*commptr
== ' ')
3056 * If we don't have a blank string, save it as another argument...
3061 argv
[argc
] = commptr
;
3068 * If we see an "=" in the remaining string, make a copy of it since
3069 * it will be query data...
3072 if (argc
== 2 && strchr(commptr
, '=') && con
->operation
== HTTP_GET
)
3073 SetStringf(&query_string
, "QUERY_STRING=%s", commptr
);
3076 * Don't skip the first non-blank character...
3081 else if (*commptr
== '%' && isxdigit(commptr
[1] & 255) &&
3082 isxdigit(commptr
[2] & 255))
3085 * Convert the %xx notation to the individual character.
3088 if (commptr
[1] >= '0' && commptr
[1] <= '9')
3089 *commptr
= (commptr
[1] - '0') << 4;
3091 *commptr
= (tolower(commptr
[1]) - 'a' + 10) << 4;
3093 if (commptr
[2] >= '0' && commptr
[2] <= '9')
3094 *commptr
|= commptr
[2] - '0';
3096 *commptr
|= tolower(commptr
[2]) - 'a' + 10;
3098 cups_strcpy(commptr
+ 1, commptr
+ 3);
3101 * Check for a %00 and break if that is the case...
3111 if (argv
[0][0] == '\0')
3112 argv
[0] = strrchr(command
, '/') + 1;
3115 * Setup the environment variables as needed...
3119 snprintf(lang
, sizeof(lang
), "LANG=%s.%s", con
->language
->language
,
3120 locale_encodings
[con
->language
->encoding
]);
3122 strcpy(lang
, "LANG=C");
3124 sprintf(ipp_port
, "IPP_PORT=%d", LocalPort
);
3126 if (con
->http
.hostaddr
.addr
.sa_family
== AF_INET6
)
3127 sprintf(server_port
, "SERVER_PORT=%d",
3128 ntohs(con
->http
.hostaddr
.ipv6
.sin6_port
));
3130 #endif /* AF_INET6 */
3131 sprintf(server_port
, "SERVER_PORT=%d",
3132 ntohs(con
->http
.hostaddr
.ipv4
.sin_port
));
3134 if (strcmp(con
->http
.hostname
, "localhost") == 0)
3135 strlcpy(server_name
, "SERVER_NAME=localhost", sizeof(server_name
));
3137 snprintf(server_name
, sizeof(server_name
), "SERVER_NAME=%s", ServerName
);
3138 snprintf(remote_host
, sizeof(remote_host
), "REMOTE_HOST=%s", con
->http
.hostname
);
3139 strcpy(remote_addr
, "REMOTE_ADDR=");
3140 httpAddrString(&(con
->http
.hostaddr
), remote_addr
+ 12,
3141 sizeof(remote_addr
) - 12);
3142 snprintf(remote_user
, sizeof(remote_user
), "REMOTE_USER=%s", con
->username
);
3143 snprintf(tmpdir
, sizeof(tmpdir
), "TMPDIR=%s", TempDir
);
3144 snprintf(cups_datadir
, sizeof(cups_datadir
), "CUPS_DATADIR=%s", DataDir
);
3145 snprintf(cups_serverbin
, sizeof(cups_serverbin
), "CUPS_SERVERBIN=%s", ServerBin
);
3146 snprintf(cups_serverroot
, sizeof(cups_serverroot
), "CUPS_SERVERROOT=%s", ServerRoot
);
3147 snprintf(cups_statedir
, sizeof(cups_statedir
), "CUPS_STATEDIR=%s", StateDir
);
3151 envp
[envc
++] = "PATH=/bin:/usr/bin";
3152 envp
[envc
++] = "SERVER_SOFTWARE=CUPS/1.1";
3153 envp
[envc
++] = "GATEWAY_INTERFACE=CGI/1.1";
3154 if (con
->http
.version
== HTTP_1_1
)
3155 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.1";
3156 else if (con
->http
.version
== HTTP_1_0
)
3157 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/1.0";
3159 envp
[envc
++] = "SERVER_PROTOCOL=HTTP/0.9";
3160 envp
[envc
++] = "REDIRECT_STATUS=1";
3161 envp
[envc
++] = "CUPS_SERVER=localhost";
3162 envp
[envc
++] = ipp_port
;
3163 envp
[envc
++] = server_name
;
3164 envp
[envc
++] = server_port
;
3165 envp
[envc
++] = remote_addr
;
3166 envp
[envc
++] = remote_host
;
3167 if (con
->username
[0])
3168 envp
[envc
++] = remote_user
;
3169 envp
[envc
++] = lang
;
3171 envp
[envc
++] = tmpdir
;
3172 envp
[envc
++] = cups_datadir
;
3173 envp
[envc
++] = cups_serverbin
;
3174 envp
[envc
++] = cups_serverroot
;
3175 envp
[envc
++] = cups_statedir
;
3177 if (getenv("VG_ARGS") != NULL
)
3179 snprintf(vg_args
, sizeof(vg_args
), "VG_ARGS=%s", getenv("VG_ARGS"));
3180 envp
[envc
++] = vg_args
;
3183 if (getenv("LD_ASSUME_KERNEL") != NULL
)
3185 snprintf(ld_assume_kernel
, sizeof(ld_assume_kernel
), "LD_ASSUME_KERNEL=%s",
3186 getenv("LD_ASSUME_KERNEL"));
3187 envp
[envc
++] = ld_assume_kernel
;
3190 if (getenv("LD_LIBRARY_PATH") != NULL
)
3192 snprintf(ld_library_path
, sizeof(ld_library_path
), "LD_LIBRARY_PATH=%s",
3193 getenv("LD_LIBRARY_PATH"));
3194 envp
[envc
++] = ld_library_path
;
3197 if (getenv("LD_PRELOAD") != NULL
)
3199 snprintf(ld_preload
, sizeof(ld_preload
), "LD_PRELOAD=%s",
3200 getenv("LD_PRELOAD"));
3201 envp
[envc
++] = ld_preload
;
3204 if (getenv("DYLD_LIBRARY_PATH") != NULL
)
3206 snprintf(dyld_library_path
, sizeof(dyld_library_path
), "DYLD_LIBRARY_PATH=%s",
3207 getenv("DYLD_LIBRARY_PATH"));
3208 envp
[envc
++] = dyld_library_path
;
3211 if (getenv("SHLIB_PATH") != NULL
)
3213 snprintf(shlib_path
, sizeof(shlib_path
), "SHLIB_PATH=%s",
3214 getenv("SHLIB_PATH"));
3215 envp
[envc
++] = shlib_path
;
3218 if (getenv("NLSPATH") != NULL
)
3220 snprintf(nlspath
, sizeof(nlspath
), "NLSPATH=%s", getenv("NLSPATH"));
3221 envp
[envc
++] = nlspath
;
3224 if (con
->http
.cookie
)
3226 snprintf(http_cookie
, sizeof(http_cookie
), "HTTP_COOKIE=%s",
3228 envp
[envc
++] = http_cookie
;
3231 if (con
->http
.fields
[HTTP_FIELD_USER_AGENT
][0])
3233 snprintf(http_user_agent
, sizeof(http_user_agent
), "HTTP_USER_AGENT=%s",
3234 con
->http
.fields
[HTTP_FIELD_USER_AGENT
]);
3235 envp
[envc
++] = http_user_agent
;
3238 snprintf(script_name
, sizeof(script_name
), "SCRIPT_NAME=%s", con
->uri
);
3239 if ((uriptr
= strchr(script_name
, '?')) != NULL
)
3241 envp
[envc
++] = script_name
;
3243 if (con
->operation
== HTTP_GET
)
3245 for (i
= 0; i
< argc
; i
++)
3246 LogMessage(L_DEBUG2
, "argv[%d] = \"%s\"", i
, argv
[i
]);
3247 envp
[envc
++] = "REQUEST_METHOD=GET";
3252 * Add GET form variables after ?...
3255 envp
[envc
++] = query_string
;
3260 sprintf(content_length
, "CONTENT_LENGTH=%d", con
->bytes
);
3261 snprintf(content_type
, sizeof(content_type
), "CONTENT_TYPE=%s",
3262 con
->http
.fields
[HTTP_FIELD_CONTENT_TYPE
]);
3264 envp
[envc
++] = "REQUEST_METHOD=POST";
3265 envp
[envc
++] = content_length
;
3266 envp
[envc
++] = content_type
;
3270 * Tell the CGI if we are using encryption...
3273 if (con
->http
.encryption
== HTTP_ENCRYPT_ALWAYS
)
3274 envp
[envc
++] = "HTTPS=ON";
3276 envp
[envc
++] = (char *)encryptions
[LocalEncryption
];
3279 * Terminate the environment array...
3284 if (LogLevel
== L_DEBUG2
)
3286 for (i
= 0; i
< argc
; i
++)
3287 LogMessage(L_DEBUG2
, "pipe_command: argv[%d] = \"%s\"", i
, argv
[i
]);
3288 for (i
= 0; i
< envc
; i
++)
3289 LogMessage(L_DEBUG2
, "pipe_command: envp[%d] = \"%s\"", i
, envp
[i
]);
3293 * Create a pipe for the output...
3296 if (cupsdOpenPipe(fds
))
3298 ClearString(&query_string
);
3300 LogMessage(L_ERROR
, "Unable to create pipes for CGI %s - %s",
3301 argv
[0], strerror(errno
));
3306 * Then execute the command...
3309 if (cupsdStartProcess(command
, argv
, envp
, infile
, fds
[1], CGIPipes
[1],
3313 * Error - can't fork!
3316 LogMessage(L_ERROR
, "Unable to fork for CGI %s - %s", argv
[0],
3319 cupsdClosePipe(fds
);
3325 * Fork successful - return the PID...
3328 AddCert(pid
, con
->username
);
3330 LogMessage(L_DEBUG
, "CGI %s started - PID = %d", command
, pid
);
3336 ClearString(&query_string
);
3342 #if defined(HAVE_CDSASSL)
3344 * 'CDSAReadFunc()' - Read function for CDSA decryption code.
3347 static OSStatus
/* O - -1 on error, 0 on success */
3348 CDSAReadFunc(SSLConnectionRef connection
, /* I - SSL/TLS connection */
3349 void *data
, /* I - Data buffer */
3350 size_t *dataLength
) /* IO - Number of bytes */
3352 ssize_t bytes
; /* Number of bytes read */
3355 bytes
= recv((int)connection
, data
, *dataLength
, 0);
3358 *dataLength
= bytes
;
3367 * 'CDSAWriteFunc()' - Write function for CDSA encryption code.
3370 static OSStatus
/* O - -1 on error, 0 on success */
3371 CDSAWriteFunc(SSLConnectionRef connection
, /* I - SSL/TLS connection */
3372 const void *data
, /* I - Data buffer */
3373 size_t *dataLength
) /* IO - Number of bytes */
3378 bytes
= write((int)connection
, data
, *dataLength
);
3381 *dataLength
= bytes
;
3387 #endif /* HAVE_CDSASSL */