2 * HTTP support routines for CUPS.
4 * Copyright 2007-2017 by Apple Inc.
5 * Copyright 1997-2007 by Easy Software Products, all rights reserved.
7 * Licensed under Apache License v2.0. See the file "LICENSE" for more information.
11 * Include necessary headers...
14 #include "cups-private.h"
19 # elif defined(HAVE_POLL)
22 # include <sys/select.h>
24 #elif defined(HAVE_AVAHI)
25 # include <avahi-client/client.h>
26 # include <avahi-client/lookup.h>
27 # include <avahi-common/simple-watch.h>
28 #endif /* HAVE_DNSSD */
35 typedef struct _http_uribuf_s
/* URI buffer */
38 AvahiSimplePoll
*poll
; /* Poll state */
39 #endif /* HAVE_AVAHI */
40 char *buffer
; /* Pointer to buffer */
41 size_t bufsize
; /* Size of buffer */
42 int options
; /* Options passed to _httpResolveURI */
43 const char *resource
; /* Resource from URI */
44 const char *uuid
; /* UUID from URI */
52 static const char * const http_days
[7] =/* Days of the week */
62 static const char * const http_months
[12] =
63 { /* Months of the year */
77 static const char * const http_states
[] =
78 { /* HTTP state strings */
83 "HTTP_STATE_GET_SEND",
86 "HTTP_STATE_POST_RECV",
87 "HTTP_STATE_POST_SEND",
89 "HTTP_STATE_PUT_RECV",
94 "HTTP_STATE_UNKNOWN_METHOD",
95 "HTTP_STATE_UNKNOWN_VERSION"
103 static const char *http_copy_decode(char *dst
, const char *src
,
104 int dstsize
, const char *term
,
106 static char *http_copy_encode(char *dst
, const char *src
,
107 char *dstend
, const char *reserved
,
108 const char *term
, int encode
);
110 static void DNSSD_API
http_resolve_cb(DNSServiceRef sdRef
,
111 DNSServiceFlags flags
,
112 uint32_t interfaceIndex
,
113 DNSServiceErrorType errorCode
,
114 const char *fullName
,
115 const char *hostTarget
,
116 uint16_t port
, uint16_t txtLen
,
117 const unsigned char *txtRecord
,
119 #endif /* HAVE_DNSSD */
122 static void http_client_cb(AvahiClient
*client
,
123 AvahiClientState state
, void *simple_poll
);
124 static int http_poll_cb(struct pollfd
*pollfds
, unsigned int num_pollfds
,
125 int timeout
, void *context
);
126 static void http_resolve_cb(AvahiServiceResolver
*resolver
,
127 AvahiIfIndex interface
,
128 AvahiProtocol protocol
,
129 AvahiResolverEvent event
,
130 const char *name
, const char *type
,
131 const char *domain
, const char *host_name
,
132 const AvahiAddress
*address
, uint16_t port
,
133 AvahiStringList
*txt
,
134 AvahiLookupResultFlags flags
, void *context
);
135 #endif /* HAVE_AVAHI */
139 * 'httpAssembleURI()' - Assemble a uniform resource identifier from its
142 * This function escapes reserved characters in the URI depending on the
143 * value of the "encoding" argument. You should use this function in
144 * place of traditional string functions whenever you need to create a
147 * @since CUPS 1.2/macOS 10.5@
150 http_uri_status_t
/* O - URI status */
152 http_uri_coding_t encoding
, /* I - Encoding flags */
153 char *uri
, /* I - URI buffer */
154 int urilen
, /* I - Size of URI buffer */
155 const char *scheme
, /* I - Scheme name */
156 const char *username
, /* I - Username */
157 const char *host
, /* I - Hostname or address */
158 int port
, /* I - Port number */
159 const char *resource
) /* I - Resource */
161 char *ptr
, /* Pointer into URI buffer */
162 *end
; /* End of URI buffer */
166 * Range check input...
169 if (!uri
|| urilen
< 1 || !scheme
|| port
< 0)
174 return (HTTP_URI_STATUS_BAD_ARGUMENTS
);
178 * Assemble the URI starting with the scheme...
181 end
= uri
+ urilen
- 1;
182 ptr
= http_copy_encode(uri
, scheme
, end
, NULL
, NULL
, 0);
185 goto assemble_overflow
;
187 if (!strcmp(scheme
, "geo") || !strcmp(scheme
, "mailto") || !strcmp(scheme
, "tel"))
190 * geo:, mailto:, and tel: only have :, no //...
196 goto assemble_overflow
;
201 * Schemes other than geo:, mailto:, and tel: typically have //...
211 goto assemble_overflow
;
215 * Next the username and hostname, if any...
220 const char *hostptr
; /* Pointer into hostname */
221 int have_ipv6
; /* Do we have an IPv6 address? */
223 if (username
&& *username
)
226 * Add username@ first...
229 ptr
= http_copy_encode(ptr
, username
, end
, "/?#[]@", NULL
,
230 encoding
& HTTP_URI_CODING_USERNAME
);
233 goto assemble_overflow
;
238 goto assemble_overflow
;
242 * Then add the hostname. Since IPv6 is a particular pain to deal
243 * with, we have several special cases to deal with. If we get
244 * an IPv6 address with brackets around it, assume it is already in
245 * URI format. Since DNS-SD service names can sometimes look like
246 * raw IPv6 addresses, we specifically look for "._tcp" in the name,
251 have_ipv6
= strchr(host
, ':') && !strstr(host
, "._tcp");
252 *hostptr
&& have_ipv6
;
254 if (*hostptr
!= ':' && !isxdigit(*hostptr
& 255))
256 have_ipv6
= *hostptr
== '%';
263 * We have a raw IPv6 address...
266 if (strchr(host
, '%') && !(encoding
& HTTP_URI_CODING_RFC6874
))
269 * We have a link-local address, add "[v1." prefix...
280 goto assemble_overflow
;
285 * We have a normal (or RFC 6874 link-local) address, add "[" prefix...
291 goto assemble_overflow
;
295 * Copy the rest of the IPv6 address, and terminate with "]".
298 while (ptr
< end
&& *host
)
303 * Convert/encode zone separator
306 if (encoding
& HTTP_URI_CODING_RFC6874
)
308 if (ptr
>= (end
- 2))
309 goto assemble_overflow
;
325 goto assemble_overflow
;
330 goto assemble_overflow
;
335 * Otherwise, just copy the host string (the extra chars are not in the
336 * "reg-name" ABNF rule; anything <= SP or >= DEL plus % gets automatically
340 ptr
= http_copy_encode(ptr
, host
, end
, "\"#/:<>?@[\\]^`{|}", NULL
,
341 encoding
& HTTP_URI_CODING_HOSTNAME
);
344 goto assemble_overflow
;
348 * Finish things off with the port number...
353 snprintf(ptr
, (size_t)(end
- ptr
+ 1), ":%d", port
);
357 goto assemble_overflow
;
362 * Last but not least, add the resource string...
367 char *query
; /* Pointer to query string */
371 * Copy the resource string up to the query string if present...
374 query
= strchr(resource
, '?');
375 ptr
= http_copy_encode(ptr
, resource
, end
, NULL
, "?",
376 encoding
& HTTP_URI_CODING_RESOURCE
);
378 goto assemble_overflow
;
383 * Copy query string without encoding...
386 ptr
= http_copy_encode(ptr
, query
, end
, NULL
, NULL
,
387 encoding
& HTTP_URI_CODING_QUERY
);
389 goto assemble_overflow
;
395 goto assemble_overflow
;
398 * Nul-terminate the URI buffer and return with no errors...
403 return (HTTP_URI_STATUS_OK
);
406 * Clear the URI string and return an overflow error; I don't usually
407 * like goto's, but in this case it makes sense...
413 return (HTTP_URI_STATUS_OVERFLOW
);
418 * 'httpAssembleURIf()' - Assemble a uniform resource identifier from its
419 * components with a formatted resource.
421 * This function creates a formatted version of the resource string
422 * argument "resourcef" and escapes reserved characters in the URI
423 * depending on the value of the "encoding" argument. You should use
424 * this function in place of traditional string functions whenever
425 * you need to create a URI string.
427 * @since CUPS 1.2/macOS 10.5@
430 http_uri_status_t
/* O - URI status */
432 http_uri_coding_t encoding
, /* I - Encoding flags */
433 char *uri
, /* I - URI buffer */
434 int urilen
, /* I - Size of URI buffer */
435 const char *scheme
, /* I - Scheme name */
436 const char *username
, /* I - Username */
437 const char *host
, /* I - Hostname or address */
438 int port
, /* I - Port number */
439 const char *resourcef
, /* I - Printf-style resource */
440 ...) /* I - Additional arguments as needed */
442 va_list ap
; /* Pointer to additional arguments */
443 char resource
[1024]; /* Formatted resource string */
444 int bytes
; /* Bytes in formatted string */
448 * Range check input...
451 if (!uri
|| urilen
< 1 || !scheme
|| port
< 0 || !resourcef
)
456 return (HTTP_URI_STATUS_BAD_ARGUMENTS
);
460 * Format the resource string and assemble the URI...
463 va_start(ap
, resourcef
);
464 bytes
= vsnprintf(resource
, sizeof(resource
), resourcef
, ap
);
467 if ((size_t)bytes
>= sizeof(resource
))
470 return (HTTP_URI_STATUS_OVERFLOW
);
473 return (httpAssembleURI(encoding
, uri
, urilen
, scheme
, username
, host
,
479 * 'httpAssembleUUID()' - Assemble a name-based UUID URN conforming to RFC 4122.
481 * This function creates a unique 128-bit identifying number using the server
482 * name, port number, random data, and optionally an object name and/or object
483 * number. The result is formatted as a UUID URN as defined in RFC 4122.
485 * The buffer needs to be at least 46 bytes in size.
487 * @since CUPS 1.7/macOS 10.9@
490 char * /* I - UUID string */
491 httpAssembleUUID(const char *server
, /* I - Server name */
492 int port
, /* I - Port number */
493 const char *name
, /* I - Object name or NULL */
494 int number
, /* I - Object number or 0 */
495 char *buffer
, /* I - String buffer */
496 size_t bufsize
) /* I - Size of buffer */
498 char data
[1024]; /* Source string for MD5 */
499 unsigned char md5sum
[16]; /* MD5 digest/sum */
503 * Build a version 3 UUID conforming to RFC 4122.
505 * Start with the MD5 sum of the server, port, object name and
506 * number, and some random data on the end.
509 snprintf(data
, sizeof(data
), "%s:%d:%s:%d:%04x:%04x", server
,
510 port
, name
? name
: server
, number
,
511 (unsigned)CUPS_RAND() & 0xffff, (unsigned)CUPS_RAND() & 0xffff);
513 cupsHashData("md5", (unsigned char *)data
, strlen(data
), md5sum
, sizeof(md5sum
));
516 * Generate the UUID from the MD5...
519 snprintf(buffer
, bufsize
,
520 "urn:uuid:%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
521 "%02x%02x%02x%02x%02x%02x",
522 md5sum
[0], md5sum
[1], md5sum
[2], md5sum
[3], md5sum
[4], md5sum
[5],
523 (md5sum
[6] & 15) | 0x30, md5sum
[7], (md5sum
[8] & 0x3f) | 0x40,
524 md5sum
[9], md5sum
[10], md5sum
[11], md5sum
[12], md5sum
[13],
525 md5sum
[14], md5sum
[15]);
532 * 'httpDecode64()' - Base64-decode a string.
534 * This function is deprecated. Use the httpDecode64_2() function instead
535 * which provides buffer length arguments.
537 * @deprecated@ @exclude all@
540 char * /* O - Decoded string */
541 httpDecode64(char *out
, /* I - String to write to */
542 const char *in
) /* I - String to read from */
544 int outlen
; /* Output buffer length */
548 * Use the old maximum buffer size for binary compatibility...
553 return (httpDecode64_2(out
, &outlen
, in
));
558 * 'httpDecode64_2()' - Base64-decode a string.
560 * The caller must initialize "outlen" to the maximum size of the decoded
561 * string before calling @code httpDecode64_2@. On return "outlen" contains the
562 * decoded length of the string.
564 * @since CUPS 1.1.21/macOS 10.4@
567 char * /* O - Decoded string */
568 httpDecode64_2(char *out
, /* I - String to write to */
569 int *outlen
, /* IO - Size of output string */
570 const char *in
) /* I - String to read from */
572 int pos
; /* Bit position */
573 unsigned base64
; /* Value of this character */
574 char *outptr
, /* Output pointer */
575 *outend
; /* End of output buffer */
579 * Range check input...
582 if (!out
|| !outlen
|| *outlen
< 1 || !in
)
594 * Convert from base-64 to bytes...
597 for (outptr
= out
, outend
= out
+ *outlen
- 1, pos
= 0; *in
!= '\0'; in
++)
600 * Decode this character into a number from 0 to 63...
603 if (*in
>= 'A' && *in
<= 'Z')
604 base64
= (unsigned)(*in
- 'A');
605 else if (*in
>= 'a' && *in
<= 'z')
606 base64
= (unsigned)(*in
- 'a' + 26);
607 else if (*in
>= '0' && *in
<= '9')
608 base64
= (unsigned)(*in
- '0' + 52);
619 * Store the result in the appropriate chars...
626 *outptr
= (char)(base64
<< 2);
631 *outptr
++ |= (char)((base64
>> 4) & 3);
633 *outptr
= (char)((base64
<< 4) & 255);
638 *outptr
++ |= (char)((base64
>> 2) & 15);
640 *outptr
= (char)((base64
<< 6) & 255);
645 *outptr
++ |= (char)base64
;
654 * Return the decoded string and size...
657 *outlen
= (int)(outptr
- out
);
664 * 'httpEncode64()' - Base64-encode a string.
666 * This function is deprecated. Use the httpEncode64_2() function instead
667 * which provides buffer length arguments.
669 * @deprecated@ @exclude all@
672 char * /* O - Encoded string */
673 httpEncode64(char *out
, /* I - String to write to */
674 const char *in
) /* I - String to read from */
676 return (httpEncode64_2(out
, 512, in
, (int)strlen(in
)));
681 * 'httpEncode64_2()' - Base64-encode a string.
683 * @since CUPS 1.1.21/macOS 10.4@
686 char * /* O - Encoded string */
687 httpEncode64_2(char *out
, /* I - String to write to */
688 int outlen
, /* I - Maximum size of output string */
689 const char *in
, /* I - String to read from */
690 int inlen
) /* I - Size of input string */
692 char *outptr
, /* Output pointer */
693 *outend
; /* End of output buffer */
694 static const char base64
[] = /* Base64 characters... */
696 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
697 "abcdefghijklmnopqrstuvwxyz"
704 * Range check input...
707 if (!out
|| outlen
< 1 || !in
)
711 * Convert bytes to base-64...
714 for (outptr
= out
, outend
= out
+ outlen
- 1; inlen
> 0; in
++, inlen
--)
717 * Encode the up to 3 characters as 4 Base64 numbers...
721 *outptr
++ = base64
[(in
[0] & 255) >> 2];
726 *outptr
++ = base64
[(((in
[0] & 255) << 4) | ((in
[1] & 255) >> 4)) & 63];
728 *outptr
++ = base64
[((in
[0] & 255) << 4) & 63];
745 *outptr
++ = base64
[(((in
[0] & 255) << 2) | ((in
[1] & 255) >> 6)) & 63];
747 *outptr
++ = base64
[((in
[0] & 255) << 2) & 63];
760 *outptr
++ = base64
[in
[0] & 63];
766 * Return the encoded string...
774 * 'httpGetDateString()' - Get a formatted date/time string from a time value.
776 * @deprecated@ @exclude all@
779 const char * /* O - Date/time string */
780 httpGetDateString(time_t t
) /* I - Time in seconds */
782 _cups_globals_t
*cg
= _cupsGlobals(); /* Pointer to library globals */
785 return (httpGetDateString2(t
, cg
->http_date
, sizeof(cg
->http_date
)));
790 * 'httpGetDateString2()' - Get a formatted date/time string from a time value.
792 * @since CUPS 1.2/macOS 10.5@
795 const char * /* O - Date/time string */
796 httpGetDateString2(time_t t
, /* I - Time in seconds */
797 char *s
, /* I - String buffer */
798 int slen
) /* I - Size of string buffer */
800 struct tm
*tdate
; /* UNIX date/time data */
805 snprintf(s
, (size_t)slen
, "%s, %02d %s %d %02d:%02d:%02d GMT", http_days
[tdate
->tm_wday
], tdate
->tm_mday
, http_months
[tdate
->tm_mon
], tdate
->tm_year
+ 1900, tdate
->tm_hour
, tdate
->tm_min
, tdate
->tm_sec
);
814 * 'httpGetDateTime()' - Get a time value from a formatted date/time string.
817 time_t /* O - Time in seconds */
818 httpGetDateTime(const char *s
) /* I - Date/time string */
820 int i
; /* Looping var */
821 char mon
[16]; /* Abbreviated month name */
822 int day
, year
; /* Day of month and year */
823 int hour
, min
, sec
; /* Time */
824 int days
; /* Number of days since 1970 */
825 static const int normal_days
[] = /* Days to a month, normal years */
826 { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 };
827 static const int leap_days
[] = /* Days to a month, leap years */
828 { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 };
831 DEBUG_printf(("2httpGetDateTime(s=\"%s\")", s
));
834 * Extract the date and time from the formatted string...
837 if (sscanf(s
, "%*s%d%15s%d%d:%d:%d", &day
, mon
, &year
, &hour
, &min
, &sec
) < 6)
840 DEBUG_printf(("4httpGetDateTime: day=%d, mon=\"%s\", year=%d, hour=%d, "
841 "min=%d, sec=%d", day
, mon
, year
, hour
, min
, sec
));
844 * Convert the month name to a number from 0 to 11.
847 for (i
= 0; i
< 12; i
++)
848 if (!_cups_strcasecmp(mon
, http_months
[i
]))
854 DEBUG_printf(("4httpGetDateTime: i=%d", i
));
857 * Now convert the date and time to a UNIX time value in seconds since
858 * 1970. We can't use mktime() since the timezone may not be UTC but
859 * the date/time string *is* UTC.
862 if ((year
& 3) == 0 && ((year
% 100) != 0 || (year
% 400) == 0))
863 days
= leap_days
[i
] + day
- 1;
865 days
= normal_days
[i
] + day
- 1;
867 DEBUG_printf(("4httpGetDateTime: days=%d", days
));
869 days
+= (year
- 1970) * 365 + /* 365 days per year (normally) */
870 ((year
- 1) / 4 - 492) - /* + leap days */
871 ((year
- 1) / 100 - 19) + /* - 100 year days */
872 ((year
- 1) / 400 - 4); /* + 400 year days */
874 DEBUG_printf(("4httpGetDateTime: days=%d\n", days
));
876 return (days
* 86400 + hour
* 3600 + min
* 60 + sec
);
881 * 'httpSeparate()' - Separate a Universal Resource Identifier into its
884 * This function is deprecated; use the httpSeparateURI() function instead.
886 * @deprecated@ @exclude all@
890 httpSeparate(const char *uri
, /* I - Universal Resource Identifier */
891 char *scheme
, /* O - Scheme [32] (http, https, etc.) */
892 char *username
, /* O - Username [1024] */
893 char *host
, /* O - Hostname [1024] */
894 int *port
, /* O - Port number to use */
895 char *resource
) /* O - Resource/filename [1024] */
897 httpSeparateURI(HTTP_URI_CODING_ALL
, uri
, scheme
, 32, username
,
898 HTTP_MAX_URI
, host
, HTTP_MAX_URI
, port
, resource
,
904 * 'httpSeparate2()' - Separate a Universal Resource Identifier into its
907 * This function is deprecated; use the httpSeparateURI() function instead.
909 * @since CUPS 1.1.21/macOS 10.4@
910 * @deprecated@ @exclude all@
914 httpSeparate2(const char *uri
, /* I - Universal Resource Identifier */
915 char *scheme
, /* O - Scheme (http, https, etc.) */
916 int schemelen
, /* I - Size of scheme buffer */
917 char *username
, /* O - Username */
918 int usernamelen
, /* I - Size of username buffer */
919 char *host
, /* O - Hostname */
920 int hostlen
, /* I - Size of hostname buffer */
921 int *port
, /* O - Port number to use */
922 char *resource
, /* O - Resource/filename */
923 int resourcelen
) /* I - Size of resource buffer */
925 httpSeparateURI(HTTP_URI_CODING_ALL
, uri
, scheme
, schemelen
, username
,
926 usernamelen
, host
, hostlen
, port
, resource
, resourcelen
);
931 * 'httpSeparateURI()' - Separate a Universal Resource Identifier into its
934 * @since CUPS 1.2/macOS 10.5@
937 http_uri_status_t
/* O - Result of separation */
939 http_uri_coding_t decoding
, /* I - Decoding flags */
940 const char *uri
, /* I - Universal Resource Identifier */
941 char *scheme
, /* O - Scheme (http, https, etc.) */
942 int schemelen
, /* I - Size of scheme buffer */
943 char *username
, /* O - Username */
944 int usernamelen
, /* I - Size of username buffer */
945 char *host
, /* O - Hostname */
946 int hostlen
, /* I - Size of hostname buffer */
947 int *port
, /* O - Port number to use */
948 char *resource
, /* O - Resource/filename */
949 int resourcelen
) /* I - Size of resource buffer */
951 char *ptr
, /* Pointer into string... */
952 *end
; /* End of string */
953 const char *sep
; /* Separator character */
954 http_uri_status_t status
; /* Result of separation */
958 * Initialize everything to blank...
961 if (scheme
&& schemelen
> 0)
964 if (username
&& usernamelen
> 0)
967 if (host
&& hostlen
> 0)
973 if (resource
&& resourcelen
> 0)
977 * Range check input...
980 if (!uri
|| !port
|| !scheme
|| schemelen
<= 0 || !username
||
981 usernamelen
<= 0 || !host
|| hostlen
<= 0 || !resource
||
983 return (HTTP_URI_STATUS_BAD_ARGUMENTS
);
986 return (HTTP_URI_STATUS_BAD_URI
);
989 * Grab the scheme portion of the URI...
992 status
= HTTP_URI_STATUS_OK
;
994 if (!strncmp(uri
, "//", 2))
997 * Workaround for HP IPP client bug...
1000 strlcpy(scheme
, "ipp", (size_t)schemelen
);
1001 status
= HTTP_URI_STATUS_MISSING_SCHEME
;
1003 else if (*uri
== '/')
1009 strlcpy(scheme
, "file", (size_t)schemelen
);
1010 status
= HTTP_URI_STATUS_MISSING_SCHEME
;
1015 * Standard URI with scheme...
1018 for (ptr
= scheme
, end
= scheme
+ schemelen
- 1;
1019 *uri
&& *uri
!= ':' && ptr
< end
;)
1020 if (strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1021 "abcdefghijklmnopqrstuvwxyz"
1022 "0123456789-+.", *uri
) != NULL
)
1032 return (HTTP_URI_STATUS_BAD_SCHEME
);
1039 * Set the default port number...
1042 if (!strcmp(scheme
, "http"))
1044 else if (!strcmp(scheme
, "https"))
1046 else if (!strcmp(scheme
, "ipp") || !strcmp(scheme
, "ipps"))
1048 else if (!_cups_strcasecmp(scheme
, "lpd"))
1050 else if (!strcmp(scheme
, "socket")) /* Not yet registered with IANA... */
1052 else if (strcmp(scheme
, "file") && strcmp(scheme
, "mailto") && strcmp(scheme
, "tel"))
1053 status
= HTTP_URI_STATUS_UNKNOWN_SCHEME
;
1056 * Now see if we have a hostname...
1059 if (!strncmp(uri
, "//", 2))
1062 * Yes, extract it...
1068 * Grab the username, if any...
1071 if ((sep
= strpbrk(uri
, "@/")) != NULL
&& *sep
== '@')
1074 * Get a username:password combo...
1077 uri
= http_copy_decode(username
, uri
, usernamelen
, "@",
1078 decoding
& HTTP_URI_CODING_USERNAME
);
1083 return (HTTP_URI_STATUS_BAD_USERNAME
);
1090 * Then the hostname/IP address...
1096 * Grab IPv6 address...
1103 * Skip IPvFuture ("vXXXX.") prefix...
1108 while (isxdigit(*uri
& 255))
1114 return (HTTP_URI_STATUS_BAD_HOSTNAME
);
1120 uri
= http_copy_decode(host
, uri
, hostlen
, "]",
1121 decoding
& HTTP_URI_CODING_HOSTNAME
);
1126 return (HTTP_URI_STATUS_BAD_HOSTNAME
);
1136 return (HTTP_URI_STATUS_BAD_HOSTNAME
);
1141 for (ptr
= host
; *ptr
; ptr
++)
1145 * Convert zone separator to % and stop here...
1151 else if (*ptr
== '%')
1154 * Stop at zone separator (RFC 6874)
1159 else if (*ptr
!= ':' && *ptr
!= '.' && !isxdigit(*ptr
& 255))
1162 return (HTTP_URI_STATUS_BAD_HOSTNAME
);
1168 * Validate the hostname or IPv4 address first...
1171 for (ptr
= (char *)uri
; *ptr
; ptr
++)
1172 if (strchr(":?/", *ptr
))
1174 else if (!strchr("abcdefghijklmnopqrstuvwxyz" /* unreserved */
1175 "ABCDEFGHIJKLMNOPQRSTUVWXYZ" /* unreserved */
1176 "0123456789" /* unreserved */
1177 "-._~" /* unreserved */
1178 "%" /* pct-encoded */
1179 "!$&'()*+,;=" /* sub-delims */
1180 "\\", *ptr
)) /* SMB domain */
1183 return (HTTP_URI_STATUS_BAD_HOSTNAME
);
1187 * Then copy the hostname or IPv4 address to the buffer...
1190 uri
= http_copy_decode(host
, uri
, hostlen
, ":?/",
1191 decoding
& HTTP_URI_CODING_HOSTNAME
);
1196 return (HTTP_URI_STATUS_BAD_HOSTNAME
);
1201 * Validate hostname for file scheme - only empty and localhost are
1205 if (!strcmp(scheme
, "file") && strcmp(host
, "localhost") && host
[0])
1208 return (HTTP_URI_STATUS_BAD_HOSTNAME
);
1212 * See if we have a port number...
1218 * Yes, collect the port number...
1221 if (!isdigit(uri
[1] & 255))
1224 return (HTTP_URI_STATUS_BAD_PORT
);
1227 *port
= (int)strtol(uri
+ 1, (char **)&uri
, 10);
1229 if (*port
<= 0 || *port
> 65535)
1232 return (HTTP_URI_STATUS_BAD_PORT
);
1235 if (*uri
!= '/' && *uri
)
1238 return (HTTP_URI_STATUS_BAD_PORT
);
1244 * The remaining portion is the resource string...
1247 if (*uri
== '?' || !*uri
)
1250 * Hostname but no path...
1253 status
= HTTP_URI_STATUS_MISSING_RESOURCE
;
1257 * Copy any query string...
1261 uri
= http_copy_decode(resource
+ 1, uri
, resourcelen
- 1, NULL
,
1262 decoding
& HTTP_URI_CODING_QUERY
);
1268 uri
= http_copy_decode(resource
, uri
, resourcelen
, "?",
1269 decoding
& HTTP_URI_CODING_RESOURCE
);
1271 if (uri
&& *uri
== '?')
1274 * Concatenate any query string...
1277 char *resptr
= resource
+ strlen(resource
);
1279 uri
= http_copy_decode(resptr
, uri
,
1280 resourcelen
- (int)(resptr
- resource
), NULL
,
1281 decoding
& HTTP_URI_CODING_QUERY
);
1288 return (HTTP_URI_STATUS_BAD_RESOURCE
);
1292 * Return the URI separation status...
1300 * 'httpStateString()' - Return the string describing a HTTP state value.
1302 * @since CUPS 2.0/OS 10.10@
1305 const char * /* O - State string */
1306 httpStateString(http_state_t state
) /* I - HTTP state value */
1308 if (state
< HTTP_STATE_ERROR
|| state
> HTTP_STATE_UNKNOWN_VERSION
)
1309 return ("HTTP_STATE_???");
1311 return (http_states
[state
- HTTP_STATE_ERROR
]);
1316 * '_httpStatus()' - Return the localized string describing a HTTP status code.
1318 * The returned string is localized using the passed message catalog.
1321 const char * /* O - Localized status string */
1322 _httpStatus(cups_lang_t
*lang
, /* I - Language */
1323 http_status_t status
) /* I - HTTP status code */
1325 const char *s
; /* Status string */
1330 case HTTP_STATUS_ERROR
:
1331 s
= strerror(errno
);
1333 case HTTP_STATUS_CONTINUE
:
1336 case HTTP_STATUS_SWITCHING_PROTOCOLS
:
1337 s
= _("Switching Protocols");
1339 case HTTP_STATUS_OK
:
1342 case HTTP_STATUS_CREATED
:
1345 case HTTP_STATUS_ACCEPTED
:
1348 case HTTP_STATUS_NO_CONTENT
:
1349 s
= _("No Content");
1351 case HTTP_STATUS_MOVED_PERMANENTLY
:
1352 s
= _("Moved Permanently");
1354 case HTTP_STATUS_FOUND
:
1357 case HTTP_STATUS_SEE_OTHER
:
1360 case HTTP_STATUS_NOT_MODIFIED
:
1361 s
= _("Not Modified");
1363 case HTTP_STATUS_BAD_REQUEST
:
1364 s
= _("Bad Request");
1366 case HTTP_STATUS_UNAUTHORIZED
:
1367 case HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED
:
1368 s
= _("Unauthorized");
1370 case HTTP_STATUS_FORBIDDEN
:
1373 case HTTP_STATUS_NOT_FOUND
:
1376 case HTTP_STATUS_REQUEST_TOO_LARGE
:
1377 s
= _("Request Entity Too Large");
1379 case HTTP_STATUS_URI_TOO_LONG
:
1380 s
= _("URI Too Long");
1382 case HTTP_STATUS_UPGRADE_REQUIRED
:
1383 s
= _("Upgrade Required");
1385 case HTTP_STATUS_NOT_IMPLEMENTED
:
1386 s
= _("Not Implemented");
1388 case HTTP_STATUS_NOT_SUPPORTED
:
1389 s
= _("Not Supported");
1391 case HTTP_STATUS_EXPECTATION_FAILED
:
1392 s
= _("Expectation Failed");
1394 case HTTP_STATUS_SERVICE_UNAVAILABLE
:
1395 s
= _("Service Unavailable");
1397 case HTTP_STATUS_SERVER_ERROR
:
1398 s
= _("Internal Server Error");
1400 case HTTP_STATUS_CUPS_PKI_ERROR
:
1401 s
= _("SSL/TLS Negotiation Error");
1403 case HTTP_STATUS_CUPS_WEBIF_DISABLED
:
1404 s
= _("Web Interface is Disabled");
1412 return (_cupsLangString(lang
, s
));
1417 * 'httpStatus()' - Return a short string describing a HTTP status code.
1419 * The returned string is localized to the current POSIX locale and is based
1420 * on the status strings defined in RFC 7231.
1423 const char * /* O - Localized status string */
1424 httpStatus(http_status_t status
) /* I - HTTP status code */
1426 _cups_globals_t
*cg
= _cupsGlobals(); /* Global data */
1429 if (!cg
->lang_default
)
1430 cg
->lang_default
= cupsLangDefault();
1432 return (_httpStatus(cg
->lang_default
, status
));
1436 * 'httpURIStatusString()' - Return a string describing a URI status code.
1438 * @since CUPS 2.0/OS 10.10@
1441 const char * /* O - Localized status string */
1442 httpURIStatusString(
1443 http_uri_status_t status
) /* I - URI status code */
1445 const char *s
; /* Status string */
1446 _cups_globals_t
*cg
= _cupsGlobals(); /* Global data */
1449 if (!cg
->lang_default
)
1450 cg
->lang_default
= cupsLangDefault();
1454 case HTTP_URI_STATUS_OVERFLOW
:
1455 s
= _("URI too large");
1457 case HTTP_URI_STATUS_BAD_ARGUMENTS
:
1458 s
= _("Bad arguments to function");
1460 case HTTP_URI_STATUS_BAD_RESOURCE
:
1461 s
= _("Bad resource in URI");
1463 case HTTP_URI_STATUS_BAD_PORT
:
1464 s
= _("Bad port number in URI");
1466 case HTTP_URI_STATUS_BAD_HOSTNAME
:
1467 s
= _("Bad hostname/address in URI");
1469 case HTTP_URI_STATUS_BAD_USERNAME
:
1470 s
= _("Bad username in URI");
1472 case HTTP_URI_STATUS_BAD_SCHEME
:
1473 s
= _("Bad scheme in URI");
1475 case HTTP_URI_STATUS_BAD_URI
:
1476 s
= _("Bad/empty URI");
1478 case HTTP_URI_STATUS_OK
:
1481 case HTTP_URI_STATUS_MISSING_SCHEME
:
1482 s
= _("Missing scheme in URI");
1484 case HTTP_URI_STATUS_UNKNOWN_SCHEME
:
1485 s
= _("Unknown scheme in URI");
1487 case HTTP_URI_STATUS_MISSING_RESOURCE
:
1488 s
= _("Missing resource in URI");
1496 return (_cupsLangString(cg
->lang_default
, s
));
1500 #ifndef HAVE_HSTRERROR
1502 * '_cups_hstrerror()' - hstrerror() emulation function for Solaris and others.
1505 const char * /* O - Error string */
1506 _cups_hstrerror(int error
) /* I - Error number */
1508 static const char * const errors
[] = /* Error strings */
1513 "Unrecoverable lookup error.",
1514 "No data associated with name."
1518 if (error
< 0 || error
> 4)
1519 return ("Unknown hostname lookup error.");
1521 return (errors
[error
]);
1523 #endif /* !HAVE_HSTRERROR */
1527 * '_httpDecodeURI()' - Percent-decode a HTTP request URI.
1530 char * /* O - Decoded URI or NULL on error */
1531 _httpDecodeURI(char *dst
, /* I - Destination buffer */
1532 const char *src
, /* I - Source URI */
1533 size_t dstsize
) /* I - Size of destination buffer */
1535 if (http_copy_decode(dst
, src
, (int)dstsize
, NULL
, 1))
1543 * '_httpEncodeURI()' - Percent-encode a HTTP request URI.
1546 char * /* O - Encoded URI */
1547 _httpEncodeURI(char *dst
, /* I - Destination buffer */
1548 const char *src
, /* I - Source URI */
1549 size_t dstsize
) /* I - Size of destination buffer */
1551 http_copy_encode(dst
, src
, dst
+ dstsize
- 1, NULL
, NULL
, 1);
1557 * '_httpResolveURI()' - Resolve a DNS-SD URI.
1560 const char * /* O - Resolved URI */
1562 const char *uri
, /* I - DNS-SD URI */
1563 char *resolved_uri
, /* I - Buffer for resolved URI */
1564 size_t resolved_size
, /* I - Size of URI buffer */
1565 int options
, /* I - Resolve options */
1566 int (*cb
)(void *context
), /* I - Continue callback function */
1567 void *context
) /* I - Context pointer for callback */
1569 char scheme
[32], /* URI components... */
1575 http_uri_status_t status
; /* URI decode status */
1579 DEBUG_printf(("_httpResolveURI(uri=\"%s\", resolved_uri=%p, resolved_size=" CUPS_LLFMT
", options=0x%x, cb=%p, context=%p)", uri
, (void *)resolved_uri
, CUPS_LLCAST resolved_size
, options
, (void *)cb
, context
));
1582 * Get the device URI...
1586 if ((status
= httpSeparateURI(HTTP_URI_CODING_ALL
, uri
, scheme
,
1587 sizeof(scheme
), userpass
, sizeof(userpass
),
1588 hostname
, sizeof(hostname
), &port
, resource
,
1589 sizeof(resource
))) < HTTP_URI_STATUS_OK
)
1591 if (httpSeparateURI(HTTP_URI_CODING_ALL
, uri
, scheme
,
1592 sizeof(scheme
), userpass
, sizeof(userpass
),
1593 hostname
, sizeof(hostname
), &port
, resource
,
1594 sizeof(resource
)) < HTTP_URI_STATUS_OK
)
1597 if (options
& _HTTP_RESOLVE_STDERR
)
1598 _cupsLangPrintFilter(stderr
, "ERROR", _("Bad device-uri \"%s\"."), uri
);
1600 DEBUG_printf(("2_httpResolveURI: httpSeparateURI returned %d!", status
));
1601 DEBUG_puts("2_httpResolveURI: Returning NULL");
1606 * Resolve it as needed...
1609 if (strstr(hostname
, "._tcp"))
1611 #if defined(HAVE_DNSSD) || defined(HAVE_AVAHI)
1612 char *regtype
, /* Pointer to type in hostname */
1613 *domain
, /* Pointer to domain in hostname */
1614 *uuid
, /* Pointer to UUID in URI */
1615 *uuidend
; /* Pointer to end of UUID in URI */
1616 _http_uribuf_t uribuf
; /* URI buffer */
1617 int offline
= 0; /* offline-report state set? */
1620 # pragma comment(lib, "dnssd.lib")
1622 DNSServiceRef ref
, /* DNS-SD master service reference */
1623 domainref
= NULL
,/* DNS-SD service reference for domain */
1624 ippref
= NULL
, /* DNS-SD service reference for network IPP */
1625 ippsref
= NULL
, /* DNS-SD service reference for network IPPS */
1626 localref
; /* DNS-SD service reference for .local */
1627 int extrasent
= 0; /* Send the domain/IPP/IPPS resolves? */
1629 struct pollfd polldata
; /* Polling data */
1630 # else /* select() */
1631 fd_set input_set
; /* Input set for select() */
1632 struct timeval stimeout
; /* Timeout value for select() */
1633 # endif /* HAVE_POLL */
1634 # elif defined(HAVE_AVAHI)
1635 AvahiClient
*client
; /* Client information */
1636 int error
; /* Status */
1637 # endif /* HAVE_DNSSD */
1639 if (options
& _HTTP_RESOLVE_STDERR
)
1640 fprintf(stderr
, "DEBUG: Resolving \"%s\"...\n", hostname
);
1643 * Separate the hostname into service name, registration type, and domain...
1646 for (regtype
= strstr(hostname
, "._tcp") - 2;
1649 if (regtype
[0] == '.' && regtype
[1] == '_')
1652 * Found ._servicetype in front of ._tcp...
1659 if (regtype
<= hostname
)
1661 DEBUG_puts("2_httpResolveURI: Bad hostname, returning NULL");
1665 for (domain
= strchr(regtype
, '.');
1667 domain
= strchr(domain
+ 1, '.'))
1668 if (domain
[1] != '_')
1674 if ((uuid
= strstr(resource
, "?uuid=")) != NULL
)
1678 if ((uuidend
= strchr(uuid
, '&')) != NULL
)
1682 resolved_uri
[0] = '\0';
1684 uribuf
.buffer
= resolved_uri
;
1685 uribuf
.bufsize
= resolved_size
;
1686 uribuf
.options
= options
;
1687 uribuf
.resource
= resource
;
1690 DEBUG_printf(("2_httpResolveURI: Resolving hostname=\"%s\", regtype=\"%s\", "
1691 "domain=\"%s\"\n", hostname
, regtype
, domain
));
1692 if (options
& _HTTP_RESOLVE_STDERR
)
1694 fputs("STATE: +connecting-to-device\n", stderr
);
1695 fprintf(stderr
, "DEBUG: Resolving \"%s\", regtype=\"%s\", "
1696 "domain=\"local.\"...\n", hostname
, regtype
);
1702 if (DNSServiceCreateConnection(&ref
) == kDNSServiceErr_NoError
)
1704 uint32_t myinterface
= kDNSServiceInterfaceIndexAny
;
1705 /* Lookup on any interface */
1707 if (!strcmp(scheme
, "ippusb"))
1708 myinterface
= kDNSServiceInterfaceIndexLocalOnly
;
1711 if (DNSServiceResolve(&localref
,
1712 kDNSServiceFlagsShareConnection
, myinterface
,
1713 hostname
, regtype
, "local.", http_resolve_cb
,
1714 &uribuf
) == kDNSServiceErr_NoError
)
1716 int fds
; /* Number of ready descriptors */
1717 time_t timeout
, /* Poll timeout */
1718 start_time
= time(NULL
),/* Start time */
1719 end_time
= start_time
+ 90;
1722 while (time(NULL
) < end_time
)
1724 if (options
& _HTTP_RESOLVE_STDERR
)
1725 _cupsLangPrintFilter(stderr
, "INFO", _("Looking for printer."));
1727 if (cb
&& !(*cb
)(context
))
1729 DEBUG_puts("2_httpResolveURI: callback returned 0 (stop)");
1734 * Wakeup every 2 seconds to emit a "looking for printer" message...
1737 if ((timeout
= end_time
- time(NULL
)) > 2)
1741 polldata
.fd
= DNSServiceRefSockFD(ref
);
1742 polldata
.events
= POLLIN
;
1744 fds
= poll(&polldata
, 1, (int)(1000 * timeout
));
1746 # else /* select() */
1747 FD_ZERO(&input_set
);
1748 FD_SET(DNSServiceRefSockFD(ref
), &input_set
);
1751 stimeout
.tv_sec
= (long)timeout
;
1753 stimeout
.tv_sec
= timeout
;
1755 stimeout
.tv_usec
= 0;
1757 fds
= select(DNSServiceRefSockFD(ref
)+1, &input_set
, NULL
, NULL
,
1759 # endif /* HAVE_POLL */
1763 if (errno
!= EINTR
&& errno
!= EAGAIN
)
1765 DEBUG_printf(("2_httpResolveURI: poll error: %s", strerror(errno
)));
1772 * Wait 2 seconds for a response to the local resolve; if nothing
1773 * comes in, do an additional domain resolution...
1776 if (extrasent
== 0 && domain
&& _cups_strcasecmp(domain
, "local."))
1778 if (options
& _HTTP_RESOLVE_STDERR
)
1780 "DEBUG: Resolving \"%s\", regtype=\"%s\", "
1781 "domain=\"%s\"...\n", hostname
, regtype
,
1782 domain
? domain
: "");
1785 if (DNSServiceResolve(&domainref
,
1786 kDNSServiceFlagsShareConnection
,
1787 myinterface
, hostname
, regtype
, domain
,
1789 &uribuf
) == kDNSServiceErr_NoError
)
1792 else if (extrasent
== 0 && !strcmp(scheme
, "ippusb"))
1794 if (options
& _HTTP_RESOLVE_STDERR
)
1795 fprintf(stderr
, "DEBUG: Resolving \"%s\", regtype=\"_ipps._tcp\", domain=\"local.\"...\n", hostname
);
1798 if (DNSServiceResolve(&ippsref
,
1799 kDNSServiceFlagsShareConnection
,
1800 kDNSServiceInterfaceIndexAny
, hostname
,
1801 "_ipps._tcp", domain
, http_resolve_cb
,
1802 &uribuf
) == kDNSServiceErr_NoError
)
1805 else if (extrasent
== 1 && !strcmp(scheme
, "ippusb"))
1807 if (options
& _HTTP_RESOLVE_STDERR
)
1808 fprintf(stderr
, "DEBUG: Resolving \"%s\", regtype=\"_ipp._tcp\", domain=\"local.\"...\n", hostname
);
1811 if (DNSServiceResolve(&ippref
,
1812 kDNSServiceFlagsShareConnection
,
1813 kDNSServiceInterfaceIndexAny
, hostname
,
1814 "_ipp._tcp", domain
, http_resolve_cb
,
1815 &uribuf
) == kDNSServiceErr_NoError
)
1820 * If it hasn't resolved within 5 seconds set the offline-report
1821 * printer-state-reason...
1824 if ((options
& _HTTP_RESOLVE_STDERR
) && offline
== 0 &&
1825 time(NULL
) > (start_time
+ 5))
1827 fputs("STATE: +offline-report\n", stderr
);
1833 if (DNSServiceProcessResult(ref
) == kDNSServiceErr_NoError
&&
1845 DNSServiceRefDeallocate(domainref
);
1847 DNSServiceRefDeallocate(ippref
);
1849 DNSServiceRefDeallocate(ippsref
);
1852 DNSServiceRefDeallocate(localref
);
1855 DNSServiceRefDeallocate(ref
);
1857 # else /* HAVE_AVAHI */
1858 if ((uribuf
.poll
= avahi_simple_poll_new()) != NULL
)
1860 avahi_simple_poll_set_func(uribuf
.poll
, http_poll_cb
, NULL
);
1862 if ((client
= avahi_client_new(avahi_simple_poll_get(uribuf
.poll
),
1864 &uribuf
, &error
)) != NULL
)
1866 if (avahi_service_resolver_new(client
, AVAHI_IF_UNSPEC
,
1867 AVAHI_PROTO_UNSPEC
, hostname
,
1868 regtype
, "local.", AVAHI_PROTO_UNSPEC
, 0,
1869 http_resolve_cb
, &uribuf
) != NULL
)
1871 time_t start_time
= time(NULL
),
1873 end_time
= start_time
+ 90;
1875 int pstatus
; /* Poll status */
1877 pstatus
= avahi_simple_poll_iterate(uribuf
.poll
, 2000);
1879 if (pstatus
== 0 && !resolved_uri
[0] && domain
&&
1880 _cups_strcasecmp(domain
, "local."))
1883 * Resolve for .local hasn't returned anything, try the listed
1887 avahi_service_resolver_new(client
, AVAHI_IF_UNSPEC
,
1888 AVAHI_PROTO_UNSPEC
, hostname
,
1889 regtype
, domain
, AVAHI_PROTO_UNSPEC
, 0,
1890 http_resolve_cb
, &uribuf
);
1893 while (!pstatus
&& !resolved_uri
[0] && time(NULL
) < end_time
)
1895 if ((pstatus
= avahi_simple_poll_iterate(uribuf
.poll
, 2000)) != 0)
1899 * If it hasn't resolved within 5 seconds set the offline-report
1900 * printer-state-reason...
1903 if ((options
& _HTTP_RESOLVE_STDERR
) && offline
== 0 &&
1904 time(NULL
) > (start_time
+ 5))
1906 fputs("STATE: +offline-report\n", stderr
);
1912 * Collect the result (if we got one).
1915 if (resolved_uri
[0])
1919 avahi_client_free(client
);
1922 avahi_simple_poll_free(uribuf
.poll
);
1924 # endif /* HAVE_DNSSD */
1926 if (options
& _HTTP_RESOLVE_STDERR
)
1930 fprintf(stderr
, "DEBUG: Resolved as \"%s\"...\n", uri
);
1931 fputs("STATE: -connecting-to-device,offline-report\n", stderr
);
1935 fputs("DEBUG: Unable to resolve URI\n", stderr
);
1936 fputs("STATE: -connecting-to-device\n", stderr
);
1940 #else /* HAVE_DNSSD || HAVE_AVAHI */
1942 * No DNS-SD support...
1946 #endif /* HAVE_DNSSD || HAVE_AVAHI */
1948 if ((options
& _HTTP_RESOLVE_STDERR
) && !uri
)
1949 _cupsLangPrintFilter(stderr
, "INFO", _("Unable to find printer."));
1954 * Nothing more to do...
1957 strlcpy(resolved_uri
, uri
, resolved_size
);
1961 DEBUG_printf(("2_httpResolveURI: Returning \"%s\"", uri
));
1969 * 'http_client_cb()' - Client callback for resolving URI.
1974 AvahiClient
*client
, /* I - Client information */
1975 AvahiClientState state
, /* I - Current state */
1976 void *context
) /* I - Pointer to URI buffer */
1978 DEBUG_printf(("7http_client_cb(client=%p, state=%d, context=%p)", client
,
1982 * If the connection drops, quit.
1985 if (state
== AVAHI_CLIENT_FAILURE
)
1987 _http_uribuf_t
*uribuf
= (_http_uribuf_t
*)context
;
1990 avahi_simple_poll_quit(uribuf
->poll
);
1993 #endif /* HAVE_AVAHI */
1997 * 'http_copy_decode()' - Copy and decode a URI.
2000 static const char * /* O - New source pointer or NULL on error */
2001 http_copy_decode(char *dst
, /* O - Destination buffer */
2002 const char *src
, /* I - Source pointer */
2003 int dstsize
, /* I - Destination size */
2004 const char *term
, /* I - Terminating characters */
2005 int decode
) /* I - Decode %-encoded values */
2007 char *ptr
, /* Pointer into buffer */
2008 *end
; /* End of buffer */
2009 int quoted
; /* Quoted character */
2013 * Copy the src to the destination until we hit a terminating character
2014 * or the end of the string.
2017 for (ptr
= dst
, end
= dst
+ dstsize
- 1;
2018 *src
&& (!term
|| !strchr(term
, *src
));
2022 if (*src
== '%' && decode
)
2024 if (isxdigit(src
[1] & 255) && isxdigit(src
[2] & 255))
2027 * Grab a hex-encoded character...
2032 quoted
= (tolower(*src
) - 'a' + 10) << 4;
2034 quoted
= (*src
- '0') << 4;
2038 quoted
|= tolower(*src
) - 'a' + 10;
2040 quoted
|= *src
- '0';
2042 *ptr
++ = (char)quoted
;
2047 * Bad hex-encoded character...
2054 else if ((*src
& 255) <= 0x20 || (*src
& 255) >= 0x7f)
2070 * 'http_copy_encode()' - Copy and encode a URI.
2073 static char * /* O - End of current URI */
2074 http_copy_encode(char *dst
, /* O - Destination buffer */
2075 const char *src
, /* I - Source pointer */
2076 char *dstend
, /* I - End of destination buffer */
2077 const char *reserved
, /* I - Extra reserved characters */
2078 const char *term
, /* I - Terminating characters */
2079 int encode
) /* I - %-encode reserved chars? */
2081 static const char hex
[] = "0123456789ABCDEF";
2084 while (*src
&& dst
< dstend
)
2086 if (term
&& *src
== *term
)
2089 if (encode
&& (*src
== '%' || *src
<= ' ' || *src
& 128 ||
2090 (reserved
&& strchr(reserved
, *src
))))
2093 * Hex encode reserved characters...
2096 if ((dst
+ 2) >= dstend
)
2100 *dst
++ = hex
[(*src
>> 4) & 15];
2101 *dst
++ = hex
[*src
& 15];
2120 * 'http_resolve_cb()' - Build a device URI for the given service name.
2123 static void DNSSD_API
2125 DNSServiceRef sdRef
, /* I - Service reference */
2126 DNSServiceFlags flags
, /* I - Results flags */
2127 uint32_t interfaceIndex
, /* I - Interface number */
2128 DNSServiceErrorType errorCode
, /* I - Error, if any */
2129 const char *fullName
, /* I - Full service name */
2130 const char *hostTarget
, /* I - Hostname */
2131 uint16_t port
, /* I - Port number */
2132 uint16_t txtLen
, /* I - Length of TXT record */
2133 const unsigned char *txtRecord
, /* I - TXT record data */
2134 void *context
) /* I - Pointer to URI buffer */
2136 _http_uribuf_t
*uribuf
= (_http_uribuf_t
*)context
;
2138 const char *scheme
, /* URI scheme */
2139 *hostptr
, /* Pointer into hostTarget */
2140 *reskey
, /* "rp" or "rfo" */
2141 *resdefault
; /* Default path */
2142 char resource
[257], /* Remote path */
2143 fqdn
[256]; /* FQDN of the .local name */
2144 const void *value
; /* Value from TXT record */
2145 uint8_t valueLen
; /* Length of value */
2148 DEBUG_printf(("4http_resolve_cb(sdRef=%p, flags=%x, interfaceIndex=%u, errorCode=%d, fullName=\"%s\", hostTarget=\"%s\", port=%u, txtLen=%u, txtRecord=%p, context=%p)", (void *)sdRef
, flags
, interfaceIndex
, errorCode
, fullName
, hostTarget
, port
, txtLen
, (void *)txtRecord
, context
));
2151 * If we have a UUID, compare it...
2155 (value
= TXTRecordGetValuePtr(txtLen
, txtRecord
, "UUID",
2156 &valueLen
)) != NULL
)
2158 char uuid
[256]; /* UUID value */
2160 memcpy(uuid
, value
, valueLen
);
2161 uuid
[valueLen
] = '\0';
2163 if (_cups_strcasecmp(uuid
, uribuf
->uuid
))
2165 if (uribuf
->options
& _HTTP_RESOLVE_STDERR
)
2166 fprintf(stderr
, "DEBUG: Found UUID %s, looking for %s.", uuid
,
2169 DEBUG_printf(("5http_resolve_cb: Found UUID %s, looking for %s.", uuid
,
2176 * Figure out the scheme from the full name...
2179 if (strstr(fullName
, "._ipps") || strstr(fullName
, "._ipp-tls"))
2181 else if (strstr(fullName
, "._ipp") || strstr(fullName
, "._fax-ipp"))
2183 else if (strstr(fullName
, "._http."))
2185 else if (strstr(fullName
, "._https."))
2187 else if (strstr(fullName
, "._printer."))
2189 else if (strstr(fullName
, "._pdl-datastream."))
2192 scheme
= "riousbprint";
2195 * Extract the "remote printer" key from the TXT record...
2198 if ((uribuf
->options
& _HTTP_RESOLVE_FAXOUT
) &&
2199 (!strcmp(scheme
, "ipp") || !strcmp(scheme
, "ipps")) &&
2200 !TXTRecordGetValuePtr(txtLen
, txtRecord
, "printer-type", &valueLen
))
2203 resdefault
= "/ipp/faxout";
2211 if ((value
= TXTRecordGetValuePtr(txtLen
, txtRecord
, reskey
,
2212 &valueLen
)) != NULL
)
2214 if (((char *)value
)[0] == '/')
2217 * Value (incorrectly) has a leading slash already...
2220 memcpy(resource
, value
, valueLen
);
2221 resource
[valueLen
] = '\0';
2226 * Convert to resource by concatenating with a leading "/"...
2230 memcpy(resource
+ 1, value
, valueLen
);
2231 resource
[valueLen
+ 1] = '\0';
2237 * Use the default value...
2240 strlcpy(resource
, resdefault
, sizeof(resource
));
2244 * Lookup the FQDN if needed...
2247 if ((uribuf
->options
& _HTTP_RESOLVE_FQDN
) &&
2248 (hostptr
= hostTarget
+ strlen(hostTarget
) - 7) > hostTarget
&&
2249 !_cups_strcasecmp(hostptr
, ".local."))
2252 * OK, we got a .local name but the caller needs a real domain. Start by
2253 * getting the IP address of the .local name and then do reverse-lookups...
2256 http_addrlist_t
*addrlist
, /* List of addresses */
2257 *addr
; /* Current address */
2259 DEBUG_printf(("5http_resolve_cb: Looking up \"%s\".", hostTarget
));
2261 snprintf(fqdn
, sizeof(fqdn
), "%d", ntohs(port
));
2262 if ((addrlist
= httpAddrGetList(hostTarget
, AF_UNSPEC
, fqdn
)) != NULL
)
2264 for (addr
= addrlist
; addr
; addr
= addr
->next
)
2266 int error
= getnameinfo(&(addr
->addr
.addr
), (socklen_t
)httpAddrLength(&(addr
->addr
)), fqdn
, sizeof(fqdn
), NULL
, 0, NI_NAMEREQD
);
2270 DEBUG_printf(("5http_resolve_cb: Found \"%s\".", fqdn
));
2272 if ((hostptr
= fqdn
+ strlen(fqdn
) - 6) <= fqdn
||
2273 _cups_strcasecmp(hostptr
, ".local"))
2281 DEBUG_printf(("5http_resolve_cb: \"%s\" did not resolve: %d",
2282 httpAddrString(&(addr
->addr
), fqdn
, sizeof(fqdn
)),
2287 httpAddrFreeList(addrlist
);
2292 * Assemble the final device URI...
2295 if ((!strcmp(scheme
, "ipp") || !strcmp(scheme
, "ipps")) &&
2296 !strcmp(uribuf
->resource
, "/cups"))
2297 httpAssembleURIf(HTTP_URI_CODING_ALL
, uribuf
->buffer
, (int)uribuf
->bufsize
, scheme
, NULL
, hostTarget
, ntohs(port
), "%s?snmp=false", resource
);
2299 httpAssembleURI(HTTP_URI_CODING_ALL
, uribuf
->buffer
, (int)uribuf
->bufsize
, scheme
, NULL
, hostTarget
, ntohs(port
), resource
);
2301 DEBUG_printf(("5http_resolve_cb: Resolved URI is \"%s\"...", uribuf
->buffer
));
2304 #elif defined(HAVE_AVAHI)
2306 * 'http_poll_cb()' - Wait for input on the specified file descriptors.
2308 * Note: This function is needed because avahi_simple_poll_iterate is broken
2309 * and always uses a timeout of 0 (!) milliseconds.
2310 * (Avahi Ticket #364)
2315 static int /* O - Number of file descriptors matching */
2317 struct pollfd
*pollfds
, /* I - File descriptors */
2318 unsigned int num_pollfds
, /* I - Number of file descriptors */
2319 int timeout
, /* I - Timeout in milliseconds (used) */
2320 void *context
) /* I - User data (unused) */
2325 return (poll(pollfds
, num_pollfds
, 2000));
2330 * 'http_resolve_cb()' - Build a device URI for the given service name.
2335 AvahiServiceResolver
*resolver
, /* I - Resolver (unused) */
2336 AvahiIfIndex interface
, /* I - Interface index (unused) */
2337 AvahiProtocol protocol
, /* I - Network protocol (unused) */
2338 AvahiResolverEvent event
, /* I - Event (found, etc.) */
2339 const char *name
, /* I - Service name */
2340 const char *type
, /* I - Registration type */
2341 const char *domain
, /* I - Domain (unused) */
2342 const char *hostTarget
, /* I - Hostname */
2343 const AvahiAddress
*address
, /* I - Address (unused) */
2344 uint16_t port
, /* I - Port number */
2345 AvahiStringList
*txt
, /* I - TXT record */
2346 AvahiLookupResultFlags flags
, /* I - Lookup flags (unused) */
2347 void *context
) /* I - Pointer to URI buffer */
2349 _http_uribuf_t
*uribuf
= (_http_uribuf_t
*)context
;
2351 const char *scheme
, /* URI scheme */
2352 *hostptr
, /* Pointer into hostTarget */
2353 *reskey
, /* "rp" or "rfo" */
2354 *resdefault
; /* Default path */
2355 char resource
[257], /* Remote path */
2356 fqdn
[256]; /* FQDN of the .local name */
2357 AvahiStringList
*pair
; /* Current TXT record key/value pair */
2358 char *value
; /* Value for "rp" key */
2359 size_t valueLen
= 0; /* Length of "rp" key */
2362 DEBUG_printf(("4http_resolve_cb(resolver=%p, "
2363 "interface=%d, protocol=%d, event=%d, name=\"%s\", "
2364 "type=\"%s\", domain=\"%s\", hostTarget=\"%s\", address=%p, "
2365 "port=%d, txt=%p, flags=%d, context=%p)",
2366 resolver
, interface
, protocol
, event
, name
, type
, domain
,
2367 hostTarget
, address
, port
, txt
, flags
, context
));
2369 if (event
!= AVAHI_RESOLVER_FOUND
)
2371 avahi_service_resolver_free(resolver
);
2372 avahi_simple_poll_quit(uribuf
->poll
);
2377 * If we have a UUID, compare it...
2380 if (uribuf
->uuid
&& (pair
= avahi_string_list_find(txt
, "UUID")) != NULL
)
2382 char uuid
[256]; /* UUID value */
2384 avahi_string_list_get_pair(pair
, NULL
, &value
, &valueLen
);
2386 memcpy(uuid
, value
, valueLen
);
2387 uuid
[valueLen
] = '\0';
2389 if (_cups_strcasecmp(uuid
, uribuf
->uuid
))
2391 if (uribuf
->options
& _HTTP_RESOLVE_STDERR
)
2392 fprintf(stderr
, "DEBUG: Found UUID %s, looking for %s.", uuid
,
2395 DEBUG_printf(("5http_resolve_cb: Found UUID %s, looking for %s.", uuid
,
2402 * Figure out the scheme from the full name...
2405 if (strstr(type
, "_ipp."))
2407 else if (strstr(type
, "_printer."))
2409 else if (strstr(type
, "_pdl-datastream."))
2412 scheme
= "riousbprint";
2414 if (!strncmp(type
, "_ipps.", 6) || !strncmp(type
, "_ipp-tls.", 9))
2416 else if (!strncmp(type
, "_ipp.", 5) || !strncmp(type
, "_fax-ipp.", 9))
2418 else if (!strncmp(type
, "_http.", 6))
2420 else if (!strncmp(type
, "_https.", 7))
2422 else if (!strncmp(type
, "_printer.", 9))
2424 else if (!strncmp(type
, "_pdl-datastream.", 16))
2428 avahi_service_resolver_free(resolver
);
2429 avahi_simple_poll_quit(uribuf
->poll
);
2434 * Extract the remote resource key from the TXT record...
2437 if ((uribuf
->options
& _HTTP_RESOLVE_FAXOUT
) &&
2438 (!strcmp(scheme
, "ipp") || !strcmp(scheme
, "ipps")) &&
2439 !avahi_string_list_find(txt
, "printer-type"))
2442 resdefault
= "/ipp/faxout";
2450 if ((pair
= avahi_string_list_find(txt
, reskey
)) != NULL
)
2452 avahi_string_list_get_pair(pair
, NULL
, &value
, &valueLen
);
2454 if (value
[0] == '/')
2457 * Value (incorrectly) has a leading slash already...
2460 memcpy(resource
, value
, valueLen
);
2461 resource
[valueLen
] = '\0';
2466 * Convert to resource by concatenating with a leading "/"...
2470 memcpy(resource
+ 1, value
, valueLen
);
2471 resource
[valueLen
+ 1] = '\0';
2477 * Use the default value...
2480 strlcpy(resource
, resdefault
, sizeof(resource
));
2484 * Lookup the FQDN if needed...
2487 if ((uribuf
->options
& _HTTP_RESOLVE_FQDN
) &&
2488 (hostptr
= hostTarget
+ strlen(hostTarget
) - 6) > hostTarget
&&
2489 !_cups_strcasecmp(hostptr
, ".local"))
2492 * OK, we got a .local name but the caller needs a real domain. Start by
2493 * getting the IP address of the .local name and then do reverse-lookups...
2496 http_addrlist_t
*addrlist
, /* List of addresses */
2497 *addr
; /* Current address */
2499 DEBUG_printf(("5http_resolve_cb: Looking up \"%s\".", hostTarget
));
2501 snprintf(fqdn
, sizeof(fqdn
), "%d", ntohs(port
));
2502 if ((addrlist
= httpAddrGetList(hostTarget
, AF_UNSPEC
, fqdn
)) != NULL
)
2504 for (addr
= addrlist
; addr
; addr
= addr
->next
)
2506 int error
= getnameinfo(&(addr
->addr
.addr
), (socklen_t
)httpAddrLength(&(addr
->addr
)), fqdn
, sizeof(fqdn
), NULL
, 0, NI_NAMEREQD
);
2510 DEBUG_printf(("5http_resolve_cb: Found \"%s\".", fqdn
));
2512 if ((hostptr
= fqdn
+ strlen(fqdn
) - 6) <= fqdn
||
2513 _cups_strcasecmp(hostptr
, ".local"))
2521 DEBUG_printf(("5http_resolve_cb: \"%s\" did not resolve: %d",
2522 httpAddrString(&(addr
->addr
), fqdn
, sizeof(fqdn
)),
2527 httpAddrFreeList(addrlist
);
2532 * Assemble the final device URI using the resolved hostname...
2535 httpAssembleURI(HTTP_URI_CODING_ALL
, uribuf
->buffer
, (int)uribuf
->bufsize
, scheme
,
2536 NULL
, hostTarget
, port
, resource
);
2537 DEBUG_printf(("5http_resolve_cb: Resolved URI is \"%s\".", uribuf
->buffer
));
2539 avahi_simple_poll_quit(uribuf
->poll
);
2541 #endif /* HAVE_DNSSD */