2 * Copyright (c) 2000-2014 Dag-Erling Smørgrav
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
33 * The following copyright applies to the base64 code:
36 * Copyright 1997 Massachusetts Institute of Technology
38 * Permission to use, copy, modify, and distribute this software and
39 * its documentation for any purpose and without fee is hereby
40 * granted, provided that both the above copyright notice and this
41 * permission notice appear in all copies, that both the above
42 * copyright notice and this permission notice appear in all
43 * supporting documentation, and that the name of M.I.T. not be used
44 * in advertising or publicity pertaining to distribution of the
45 * software without specific, written prior permission. M.I.T. makes
46 * no representations about the suitability of this software for any
47 * purpose. It is provided "as is" without express or implied
50 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
51 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
52 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
53 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
54 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
57 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
58 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
59 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
60 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 #include <sys/param.h>
65 #include <sys/socket.h>
81 #include <openssl/md5.h>
82 #define MD5Init(c) MD5_Init(c)
83 #define MD5Update(c, data, len) MD5_Update(c, data, len)
84 #define MD5Final(md, c) MD5_Final(md, c)
89 #include <netinet/in.h>
90 #include <netinet/tcp.h>
96 /* Maximum number of redirects to follow */
97 #define MAX_REDIRECT 20
99 /* Symbolic names for reply codes we care about */
101 #define HTTP_PARTIAL 206
102 #define HTTP_MOVED_PERM 301
103 #define HTTP_MOVED_TEMP 302
104 #define HTTP_SEE_OTHER 303
105 #define HTTP_NOT_MODIFIED 304
106 #define HTTP_USE_PROXY 305
107 #define HTTP_TEMP_REDIRECT 307
108 #define HTTP_PERM_REDIRECT 308
109 #define HTTP_NEED_AUTH 401
110 #define HTTP_NEED_PROXY_AUTH 407
111 #define HTTP_BAD_RANGE 416
112 #define HTTP_PROTOCOL_ERROR 999
114 #define HTTP_REDIRECT(xyz) ((xyz) == HTTP_MOVED_PERM \
115 || (xyz) == HTTP_MOVED_TEMP \
116 || (xyz) == HTTP_TEMP_REDIRECT \
117 || (xyz) == HTTP_PERM_REDIRECT \
118 || (xyz) == HTTP_USE_PROXY \
119 || (xyz) == HTTP_SEE_OTHER)
121 #define HTTP_ERROR(xyz) ((xyz) >= 400 && (xyz) <= 599)
124 /*****************************************************************************
125 * I/O functions for decoding chunked streams
130 conn_t *conn; /* connection */
131 int chunked; /* chunked mode */
132 char *buf; /* chunk buffer */
133 size_t bufsize; /* size of chunk buffer */
134 size_t buflen; /* amount of data currently in buffer */
135 size_t bufpos; /* current read offset in buffer */
136 int eof; /* end-of-file flag */
137 int error; /* error flag */
138 size_t chunksize; /* remaining size of current chunk */
145 * Get next chunk header
148 http_new_chunk(struct httpio *io)
152 if (fetch_getln(io->conn) == -1)
155 if (io->conn->buflen < 2 || !isxdigit((unsigned char)*io->conn->buf))
158 for (p = io->conn->buf; *p && !isspace((unsigned char)*p); ++p) {
161 if (!isxdigit((unsigned char)*p))
163 if (isdigit((unsigned char)*p)) {
164 io->chunksize = io->chunksize * 16 +
167 io->chunksize = io->chunksize * 16 +
168 10 + tolower((unsigned char)*p) - 'a';
174 io->total += io->chunksize;
175 if (io->chunksize == 0)
176 fprintf(stderr, "%s(): end of last chunk\n", __func__);
178 fprintf(stderr, "%s(): new chunk: %lu (%lu)\n",
179 __func__, (unsigned long)io->chunksize,
180 (unsigned long)io->total);
184 return (io->chunksize);
188 * Grow the input buffer to at least len bytes
191 http_growbuf(struct httpio *io, size_t len)
195 if (io->bufsize >= len)
198 if ((tmp = realloc(io->buf, len)) == NULL)
206 * Fill the input buffer, do chunk decoding on the fly
209 http_fillbuf(struct httpio *io, size_t len)
219 /* not chunked: just fetch the requested amount */
220 if (io->chunked == 0) {
221 if (http_growbuf(io, len) == -1)
223 if ((nbytes = fetch_read(io->conn, io->buf, len)) == -1) {
232 /* chunked, but we ran out: get the next chunk header */
233 if (io->chunksize == 0) {
234 switch (http_new_chunk(io)) {
244 /* fetch the requested amount, but no more than the current chunk */
245 if (len > io->chunksize)
247 if (http_growbuf(io, len) == -1)
249 if ((nbytes = fetch_read(io->conn, io->buf, len)) == -1) {
255 io->chunksize -= nbytes;
257 if (io->chunksize == 0) {
258 if (fetch_read(io->conn, &ch, 1) != 1 || ch != '\r' ||
259 fetch_read(io->conn, &ch, 1) != 1 || ch != '\n')
270 http_readfn(void *v, char *buf, int len)
272 struct httpio *io = (struct httpio *)v;
281 if (!io->buf || io->bufpos == io->buflen) {
282 if ((rlen = http_fillbuf(io, len)) < 0) {
283 if ((errno = io->error) == EINTR)
286 } else if (rlen == 0) {
291 rlen = io->buflen - io->bufpos;
294 memcpy(buf, io->buf + io->bufpos, rlen);
303 http_writefn(void *v, const char *buf, int len)
305 struct httpio *io = (struct httpio *)v;
307 return (fetch_write(io->conn, buf, len));
314 http_closefn(void *v)
316 struct httpio *io = (struct httpio *)v;
319 r = fetch_close(io->conn);
327 * Wrap a file descriptor up
330 http_funopen(conn_t *conn, int chunked)
335 if ((io = calloc(1, sizeof(*io))) == NULL) {
340 io->chunked = chunked;
341 f = funopen(io, http_readfn, http_writefn, NULL, http_closefn);
351 /*****************************************************************************
352 * Helper functions for talking to the server and parsing its replies
365 hdr_transfer_encoding,
366 hdr_www_authenticate,
367 hdr_proxy_authenticate,
370 /* Names of interesting headers */
375 { hdr_content_length, "Content-Length" },
376 { hdr_content_range, "Content-Range" },
377 { hdr_last_modified, "Last-Modified" },
378 { hdr_location, "Location" },
379 { hdr_transfer_encoding, "Transfer-Encoding" },
380 { hdr_www_authenticate, "WWW-Authenticate" },
381 { hdr_proxy_authenticate, "Proxy-Authenticate" },
382 { hdr_unknown, NULL },
386 * Send a formatted line; optionally echo to terminal
389 http_cmd(conn_t *conn, const char *fmt, ...)
397 len = vasprintf(&msg, fmt, ap);
406 r = fetch_putln(conn, msg, len);
418 * Get and parse status line
421 http_get_reply(conn_t *conn)
425 if (fetch_getln(conn) == -1)
428 * A valid status line looks like "HTTP/m.n xyz reason" where m
429 * and n are the major and minor protocol version numbers and xyz
431 * Unfortunately, there are servers out there (NCSA 1.5.1, to name
432 * just one) that do not send a version number, so we can't rely
433 * on finding one, but if we do, insist on it being 1.0 or 1.1.
434 * We don't care about the reason phrase.
436 if (strncmp(conn->buf, "HTTP", 4) != 0)
437 return (HTTP_PROTOCOL_ERROR);
440 if (p[1] != '1' || p[2] != '.' || (p[3] != '0' && p[3] != '1'))
441 return (HTTP_PROTOCOL_ERROR);
445 !isdigit((unsigned char)p[1]) ||
446 !isdigit((unsigned char)p[2]) ||
447 !isdigit((unsigned char)p[3]))
448 return (HTTP_PROTOCOL_ERROR);
450 conn->err = (p[1] - '0') * 100 + (p[2] - '0') * 10 + (p[3] - '0');
455 * Check a header; if the type matches the given string, return a pointer
456 * to the beginning of the value.
459 http_match(const char *str, const char *hdr)
461 while (*str && *hdr &&
462 tolower((unsigned char)*str++) == tolower((unsigned char)*hdr++))
464 if (*str || *hdr != ':')
466 while (*hdr && isspace((unsigned char)*++hdr))
473 * Get the next header and return the appropriate symbolic code. We
474 * need to read one line ahead for checking for a continuation line
475 * belonging to the current header (continuation lines start with
478 * We get called with a fresh line already in the conn buffer, either
479 * from the previous http_next_header() invocation, or, the first
480 * time, from a fetch_getln() performed by our caller.
482 * This stops when we encounter an empty line (we dont read beyond the header
485 * Note that the "headerbuf" is just a place to return the result. Its
486 * contents are not used for the next call. This means that no cleanup
487 * is needed when ie doing another connection, just call the cleanup when
488 * fully done to deallocate memory.
491 /* Limit the max number of continuation lines to some reasonable value */
492 #define HTTP_MAX_CONT_LINES 10
494 /* Place into which to build a header from one or several lines */
496 char *buf; /* buffer */
497 size_t bufsize; /* buffer size */
498 size_t buflen; /* length of buffer contents */
502 init_http_headerbuf(http_headerbuf_t *buf)
510 clean_http_headerbuf(http_headerbuf_t *buf)
514 init_http_headerbuf(buf);
517 /* Remove whitespace at the end of the buffer */
519 http_conn_trimright(conn_t *conn)
521 while (conn->buflen &&
522 isspace((unsigned char)conn->buf[conn->buflen - 1]))
524 conn->buf[conn->buflen] = '\0';
528 http_next_header(conn_t *conn, http_headerbuf_t *hbuf, const char **p)
533 * Have to do the stripping here because of the first line. So
534 * it's done twice for the subsequent lines. No big deal
536 http_conn_trimright(conn);
537 if (conn->buflen == 0)
540 /* Copy the line to the headerbuf */
541 if (hbuf->bufsize < conn->buflen + 1) {
542 if ((hbuf->buf = realloc(hbuf->buf, conn->buflen + 1)) == NULL)
543 return (hdr_syserror);
544 hbuf->bufsize = conn->buflen + 1;
546 strcpy(hbuf->buf, conn->buf);
547 hbuf->buflen = conn->buflen;
550 * Fetch possible continuation lines. Stop at 1st non-continuation
551 * and leave it in the conn buffer
553 for (i = 0; i < HTTP_MAX_CONT_LINES; i++) {
554 if (fetch_getln(conn) == -1)
555 return (hdr_syserror);
558 * Note: we carry on the idea from the previous version
559 * that a pure whitespace line is equivalent to an empty
560 * one (so it's not continuation and will be handled when
561 * we are called next)
563 http_conn_trimright(conn);
564 if (conn->buf[0] != ' ' && conn->buf[0] != "\t"[0])
567 /* Got a continuation line. Concatenate to previous */
568 len = hbuf->buflen + conn->buflen;
569 if (hbuf->bufsize < len + 1) {
571 if ((hbuf->buf = realloc(hbuf->buf, len + 1)) == NULL)
572 return (hdr_syserror);
573 hbuf->bufsize = len + 1;
575 strcpy(hbuf->buf + hbuf->buflen, conn->buf);
576 hbuf->buflen += conn->buflen;
580 * We could check for malformed headers but we don't really care.
581 * A valid header starts with a token immediately followed by a
582 * colon; a token is any sequence of non-control, non-whitespace
583 * characters except "()<>@,;:\\\"{}".
585 for (i = 0; hdr_names[i].num != hdr_unknown; i++)
586 if ((*p = http_match(hdr_names[i].name, hbuf->buf)) != NULL)
587 return (hdr_names[i].num);
589 return (hdr_unknown);
592 /**************************
593 * [Proxy-]Authenticate header parsing
597 * Read doublequote-delimited string into output buffer obuf (allocated
598 * by caller, whose responsibility it is to ensure that it's big enough)
599 * cp points to the first char after the initial '"'
601 * Returns pointer to the first char after the terminating double quote, or
605 http_parse_headerstring(const char *cp, char *obuf)
609 case 0: /* Unterminated string */
612 case '"': /* Ending quote */
627 /* Http auth challenge schemes */
628 typedef enum {HTTPAS_UNKNOWN, HTTPAS_BASIC,HTTPAS_DIGEST} http_auth_schemes_t;
630 /* Data holder for a Basic or Digest challenge. */
632 http_auth_schemes_t scheme;
639 int nc; /* Nonce count */
640 } http_auth_challenge_t;
643 init_http_auth_challenge(http_auth_challenge_t *b)
645 b->scheme = HTTPAS_UNKNOWN;
646 b->realm = b->qop = b->nonce = b->opaque = b->algo = NULL;
647 b->stale = b->nc = 0;
651 clean_http_auth_challenge(http_auth_challenge_t *b)
663 init_http_auth_challenge(b);
666 /* Data holder for an array of challenges offered in an http response. */
667 #define MAX_CHALLENGES 10
669 http_auth_challenge_t *challenges[MAX_CHALLENGES];
670 int count; /* Number of parsed challenges in the array */
671 int valid; /* We did parse an authenticate header */
672 } http_auth_challenges_t;
675 init_http_auth_challenges(http_auth_challenges_t *cs)
678 for (i = 0; i < MAX_CHALLENGES; i++)
679 cs->challenges[i] = NULL;
680 cs->count = cs->valid = 0;
684 clean_http_auth_challenges(http_auth_challenges_t *cs)
687 /* We rely on non-zero pointers being allocated, not on the count */
688 for (i = 0; i < MAX_CHALLENGES; i++) {
689 if (cs->challenges[i] != NULL) {
690 clean_http_auth_challenge(cs->challenges[i]);
691 free(cs->challenges[i]);
694 init_http_auth_challenges(cs);
698 * Enumeration for lexical elements. Separators will be returned as their own
701 typedef enum {HTTPHL_WORD=256, HTTPHL_STRING=257, HTTPHL_END=258,
702 HTTPHL_ERROR = 259} http_header_lex_t;
705 * Determine what kind of token comes next and return possible value
706 * in buf, which is supposed to have been allocated big enough by
707 * caller. Advance input pointer and return element type.
710 http_header_lex(const char **cpp, char *buf)
713 /* Eat initial whitespace */
714 *cpp += strspn(*cpp, " \t");
719 if (**cpp == ',' || **cpp == '=')
720 return (*((*cpp)++));
724 *cpp = http_parse_headerstring(++*cpp, buf);
726 return (HTTPHL_ERROR);
727 return (HTTPHL_STRING);
730 /* Read other token, until separator or whitespace */
731 l = strcspn(*cpp, " \t,=");
732 memcpy(buf, *cpp, l);
735 return (HTTPHL_WORD);
739 * Read challenges from http xxx-authenticate header and accumulate them
740 * in the challenges list structure.
742 * Headers with multiple challenges are specified by rfc2617, but
743 * servers (ie: squid) often send them in separate headers instead,
744 * which in turn is forbidden by the http spec (multiple headers with
745 * the same name are only allowed for pure comma-separated lists, see
748 * We support both approaches anyway
751 http_parse_authenticate(const char *cp, http_auth_challenges_t *cs)
754 http_header_lex_t lex;
755 char *key = malloc(strlen(cp) + 1);
756 char *value = malloc(strlen(cp) + 1);
757 char *buf = malloc(strlen(cp) + 1);
759 if (key == NULL || value == NULL || buf == NULL) {
764 /* In any case we've seen the header and we set the valid bit */
767 /* Need word first */
768 lex = http_header_lex(&cp, key);
769 if (lex != HTTPHL_WORD)
772 /* Loop on challenges */
773 for (; cs->count < MAX_CHALLENGES; cs->count++) {
774 cs->challenges[cs->count] =
775 malloc(sizeof(http_auth_challenge_t));
776 if (cs->challenges[cs->count] == NULL) {
780 init_http_auth_challenge(cs->challenges[cs->count]);
781 if (!strcasecmp(key, "basic")) {
782 cs->challenges[cs->count]->scheme = HTTPAS_BASIC;
783 } else if (!strcasecmp(key, "digest")) {
784 cs->challenges[cs->count]->scheme = HTTPAS_DIGEST;
786 cs->challenges[cs->count]->scheme = HTTPAS_UNKNOWN;
788 * Continue parsing as basic or digest may
789 * follow, and the syntax is the same for
790 * all. We'll just ignore this one when
791 * looking at the list
795 /* Loop on attributes */
798 lex = http_header_lex(&cp, key);
799 if (lex != HTTPHL_WORD)
803 lex = http_header_lex(&cp, buf);
808 lex = http_header_lex(&cp, value);
809 if (lex != HTTPHL_WORD && lex != HTTPHL_STRING)
812 if (!strcasecmp(key, "realm"))
813 cs->challenges[cs->count]->realm =
815 else if (!strcasecmp(key, "qop"))
816 cs->challenges[cs->count]->qop =
818 else if (!strcasecmp(key, "nonce"))
819 cs->challenges[cs->count]->nonce =
821 else if (!strcasecmp(key, "opaque"))
822 cs->challenges[cs->count]->opaque =
824 else if (!strcasecmp(key, "algorithm"))
825 cs->challenges[cs->count]->algo =
827 else if (!strcasecmp(key, "stale"))
828 cs->challenges[cs->count]->stale =
829 strcasecmp(value, "no");
830 /* Else ignore unknown attributes */
832 /* Comma or Next challenge or End */
833 lex = http_header_lex(&cp, key);
835 * If we get a word here, this is the beginning of the
836 * next challenge. Break the attributes loop
838 if (lex == HTTPHL_WORD)
841 if (lex == HTTPHL_END) {
842 /* End while looking for ',' is normal exit */
847 /* Anything else is an error */
851 } /* End attributes loop */
852 } /* End challenge loop */
855 * Challenges max count exceeded. This really can't happen
856 * with normal data, something's fishy -> error
871 * Parse a last-modified header
874 http_parse_mtime(const char *p, time_t *mtime)
879 strlcpy(locale, setlocale(LC_TIME, NULL), sizeof(locale));
880 setlocale(LC_TIME, "C");
881 r = strptime(p, "%a, %d %b %Y %H:%M:%S GMT", &tm);
883 * Some proxies use UTC in response, but it should still be
884 * parsed. RFC2616 states GMT and UTC are exactly equal for HTTP.
887 r = strptime(p, "%a, %d %b %Y %H:%M:%S UTC", &tm);
888 /* XXX should add support for date-2 and date-3 */
889 setlocale(LC_TIME, locale);
892 DEBUG(fprintf(stderr, "last modified: [%04d-%02d-%02d "
894 tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
895 tm.tm_hour, tm.tm_min, tm.tm_sec));
896 *mtime = timegm(&tm);
901 * Parse a content-length header
904 http_parse_length(const char *p, off_t *length)
908 for (len = 0; *p && isdigit((unsigned char)*p); ++p)
909 len = len * 10 + (*p - '0');
912 DEBUG(fprintf(stderr, "content length: [%lld]\n",
919 * Parse a content-range header
922 http_parse_range(const char *p, off_t *offset, off_t *length, off_t *size)
924 off_t first, last, len;
926 if (strncasecmp(p, "bytes ", 6) != 0)
933 for (first = 0; *p && isdigit((unsigned char)*p); ++p)
934 first = first * 10 + *p - '0';
937 for (last = 0, ++p; *p && isdigit((unsigned char)*p); ++p)
938 last = last * 10 + *p - '0';
940 if (first > last || *p != '/')
942 for (len = 0, ++p; *p && isdigit((unsigned char)*p); ++p)
943 len = len * 10 + *p - '0';
944 if (*p || len < last - first + 1)
947 DEBUG(fprintf(stderr, "content range: [*/%lld]\n",
951 DEBUG(fprintf(stderr, "content range: [%lld-%lld/%lld]\n",
952 (long long)first, (long long)last, (long long)len));
953 *length = last - first + 1;
961 /*****************************************************************************
962 * Helper functions for authorization
969 http_base64(const char *src)
971 static const char base64[] =
972 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
973 "abcdefghijklmnopqrstuvwxyz"
980 if ((str = malloc(((l + 2) / 3) * 4 + 1)) == NULL)
986 t = (src[0] << 16) | (src[1] << 8) | src[2];
987 dst[0] = base64[(t >> 18) & 0x3f];
988 dst[1] = base64[(t >> 12) & 0x3f];
989 dst[2] = base64[(t >> 6) & 0x3f];
990 dst[3] = base64[(t >> 0) & 0x3f];
997 t = (src[0] << 16) | (src[1] << 8);
998 dst[0] = base64[(t >> 18) & 0x3f];
999 dst[1] = base64[(t >> 12) & 0x3f];
1000 dst[2] = base64[(t >> 6) & 0x3f];
1007 dst[0] = base64[(t >> 18) & 0x3f];
1008 dst[1] = base64[(t >> 12) & 0x3f];
1009 dst[2] = dst[3] = '=';
1023 * Extract authorization parameters from environment value.
1024 * The value is like scheme:realm:user:pass
1031 } http_auth_params_t;
1034 init_http_auth_params(http_auth_params_t *s)
1036 s->scheme = s->realm = s->user = s->password = NULL;
1040 clean_http_auth_params(http_auth_params_t *s)
1050 init_http_auth_params(s);
1054 http_authfromenv(const char *p, http_auth_params_t *parms)
1058 char *str = strdup(p);
1066 if ((ve = strchr(v, ':')) == NULL)
1070 if ((parms->scheme = strdup(v)) == NULL) {
1076 if ((ve = strchr(v, ':')) == NULL)
1080 if ((parms->realm = strdup(v)) == NULL) {
1086 if ((ve = strchr(v, ':')) == NULL)
1090 if ((parms->user = strdup(v)) == NULL) {
1097 if ((parms->password = strdup(v)) == NULL) {
1104 clean_http_auth_params(parms);
1112 * Digest response: the code to compute the digest is taken from the
1113 * sample implementation in RFC2616
1119 typedef char HASH[HASHLEN];
1120 #define HASHHEXLEN 32
1121 typedef char HASHHEX[HASHHEXLEN+1];
1123 static const char *hexchars = "0123456789abcdef";
1125 CvtHex(IN HASH Bin, OUT HASHHEX Hex)
1130 for (i = 0; i < HASHLEN; i++) {
1131 j = (Bin[i] >> 4) & 0xf;
1132 Hex[i*2] = hexchars[j];
1134 Hex[i*2+1] = hexchars[j];
1136 Hex[HASHHEXLEN] = '\0';
1139 /* calculate H(A1) as per spec */
1143 IN char * pszUserName,
1145 IN char * pszPassword,
1147 IN char * pszCNonce,
1148 OUT HASHHEX SessionKey
1155 MD5Update(&Md5Ctx, pszUserName, strlen(pszUserName));
1156 MD5Update(&Md5Ctx, ":", 1);
1157 MD5Update(&Md5Ctx, pszRealm, strlen(pszRealm));
1158 MD5Update(&Md5Ctx, ":", 1);
1159 MD5Update(&Md5Ctx, pszPassword, strlen(pszPassword));
1160 MD5Final(HA1, &Md5Ctx);
1161 if (strcasecmp(pszAlg, "md5-sess") == 0) {
1164 MD5Update(&Md5Ctx, HA1, HASHLEN);
1165 MD5Update(&Md5Ctx, ":", 1);
1166 MD5Update(&Md5Ctx, pszNonce, strlen(pszNonce));
1167 MD5Update(&Md5Ctx, ":", 1);
1168 MD5Update(&Md5Ctx, pszCNonce, strlen(pszCNonce));
1169 MD5Final(HA1, &Md5Ctx);
1171 CvtHex(HA1, SessionKey);
1174 /* calculate request-digest/response-digest as per HTTP Digest spec */
1177 IN HASHHEX HA1, /* H(A1) */
1178 IN char * pszNonce, /* nonce from server */
1179 IN char * pszNonceCount, /* 8 hex digits */
1180 IN char * pszCNonce, /* client nonce */
1181 IN char * pszQop, /* qop-value: "", "auth", "auth-int" */
1182 IN char * pszMethod, /* method from the request */
1183 IN char * pszDigestUri, /* requested URL */
1184 IN HASHHEX HEntity, /* H(entity body) if qop="auth-int" */
1185 OUT HASHHEX Response /* request-digest or response-digest */
1188 /* DEBUG(fprintf(stderr,
1189 "Calc: HA1[%s] Nonce[%s] qop[%s] method[%s] URI[%s]\n",
1190 HA1, pszNonce, pszQop, pszMethod, pszDigestUri));*/
1198 MD5Update(&Md5Ctx, pszMethod, strlen(pszMethod));
1199 MD5Update(&Md5Ctx, ":", 1);
1200 MD5Update(&Md5Ctx, pszDigestUri, strlen(pszDigestUri));
1201 if (strcasecmp(pszQop, "auth-int") == 0) {
1202 MD5Update(&Md5Ctx, ":", 1);
1203 MD5Update(&Md5Ctx, HEntity, HASHHEXLEN);
1205 MD5Final(HA2, &Md5Ctx);
1206 CvtHex(HA2, HA2Hex);
1208 // calculate response
1210 MD5Update(&Md5Ctx, HA1, HASHHEXLEN);
1211 MD5Update(&Md5Ctx, ":", 1);
1212 MD5Update(&Md5Ctx, pszNonce, strlen(pszNonce));
1213 MD5Update(&Md5Ctx, ":", 1);
1215 MD5Update(&Md5Ctx, pszNonceCount, strlen(pszNonceCount));
1216 MD5Update(&Md5Ctx, ":", 1);
1217 MD5Update(&Md5Ctx, pszCNonce, strlen(pszCNonce));
1218 MD5Update(&Md5Ctx, ":", 1);
1219 MD5Update(&Md5Ctx, pszQop, strlen(pszQop));
1220 MD5Update(&Md5Ctx, ":", 1);
1222 MD5Update(&Md5Ctx, HA2Hex, HASHHEXLEN);
1223 MD5Final(RespHash, &Md5Ctx);
1224 CvtHex(RespHash, Response);
1228 * Generate/Send a Digest authorization header
1229 * This looks like: [Proxy-]Authorization: credentials
1231 * credentials = "Digest" digest-response
1232 * digest-response = 1#( username | realm | nonce | digest-uri
1233 * | response | [ algorithm ] | [cnonce] |
1234 * [opaque] | [message-qop] |
1235 * [nonce-count] | [auth-param] )
1236 * username = "username" "=" username-value
1237 * username-value = quoted-string
1238 * digest-uri = "uri" "=" digest-uri-value
1239 * digest-uri-value = request-uri ; As specified by HTTP/1.1
1240 * message-qop = "qop" "=" qop-value
1241 * cnonce = "cnonce" "=" cnonce-value
1242 * cnonce-value = nonce-value
1243 * nonce-count = "nc" "=" nc-value
1245 * response = "response" "=" request-digest
1246 * request-digest = <"> 32LHEX <">
1249 http_digest_auth(conn_t *conn, const char *hdr, http_auth_challenge_t *c,
1250 http_auth_params_t *parms, struct url *url)
1253 char noncecount[10];
1255 char *options = NULL;
1257 if (!c->realm || !c->nonce) {
1258 DEBUG(fprintf(stderr, "realm/nonce not set in challenge\n"));
1262 c->algo = strdup("");
1264 if (asprintf(&options, "%s%s%s%s",
1265 *c->algo? ",algorithm=" : "", c->algo,
1266 c->opaque? ",opaque=" : "", c->opaque?c->opaque:"")== -1)
1270 c->qop = strdup("");
1275 sprintf(noncecount, "%08x", c->nc);
1276 /* We don't try very hard with the cnonce ... */
1277 sprintf(cnonce, "%x%lx", getpid(), (unsigned long)time(0));
1281 DigestCalcHA1(c->algo, parms->user, c->realm,
1282 parms->password, c->nonce, cnonce, HA1);
1283 DEBUG(fprintf(stderr, "HA1: [%s]\n", HA1));
1285 DigestCalcResponse(HA1, c->nonce, noncecount, cnonce, c->qop,
1286 "GET", url->doc, "", digest);
1289 r = http_cmd(conn, "%s: Digest username=\"%s\",realm=\"%s\","
1290 "nonce=\"%s\",uri=\"%s\",response=\"%s\","
1291 "qop=\"auth\", cnonce=\"%s\", nc=%s%s",
1292 hdr, parms->user, c->realm,
1293 c->nonce, url->doc, digest,
1294 cnonce, noncecount, options);
1296 r = http_cmd(conn, "%s: Digest username=\"%s\",realm=\"%s\","
1297 "nonce=\"%s\",uri=\"%s\",response=\"%s\"%s",
1298 hdr, parms->user, c->realm,
1299 c->nonce, url->doc, digest, options);
1307 * Encode username and password
1310 http_basic_auth(conn_t *conn, const char *hdr, const char *usr, const char *pwd)
1315 DEBUG(fprintf(stderr, "basic: usr: [%s]\n", usr));
1316 DEBUG(fprintf(stderr, "basic: pwd: [%s]\n", pwd));
1317 if (asprintf(&upw, "%s:%s", usr, pwd) == -1)
1319 auth = http_base64(upw);
1323 r = http_cmd(conn, "%s: Basic %s", hdr, auth);
1329 * Chose the challenge to answer and call the appropriate routine to
1330 * produce the header.
1333 http_authorize(conn_t *conn, const char *hdr, http_auth_challenges_t *cs,
1334 http_auth_params_t *parms, struct url *url)
1336 http_auth_challenge_t *digest = NULL;
1339 /* If user or pass are null we're not happy */
1340 if (!parms->user || !parms->password) {
1341 DEBUG(fprintf(stderr, "NULL usr or pass\n"));
1345 /* Look for a Digest */
1346 for (i = 0; i < cs->count; i++) {
1347 if (cs->challenges[i]->scheme == HTTPAS_DIGEST)
1348 digest = cs->challenges[i];
1351 /* Error if "Digest" was specified and there is no Digest challenge */
1352 if (!digest && (parms->scheme &&
1353 !strcasecmp(parms->scheme, "digest"))) {
1354 DEBUG(fprintf(stderr,
1355 "Digest auth in env, not supported by peer\n"));
1359 * If "basic" was specified in the environment, or there is no Digest
1360 * challenge, do the basic thing. Don't need a challenge for this,
1361 * so no need to check basic!=NULL
1363 if (!digest || (parms->scheme && !strcasecmp(parms->scheme,"basic")))
1364 return (http_basic_auth(conn,hdr,parms->user,parms->password));
1366 /* Else, prefer digest. We just checked that it's not NULL */
1367 return (http_digest_auth(conn, hdr, digest, parms, url));
1370 /*****************************************************************************
1371 * Helper functions for connecting to a server or proxy
1375 * Connect to the correct HTTP server or proxy.
1378 http_connect(struct url *URL, struct url *purl, const char *flags)
1383 http_headerbuf_t headerbuf;
1395 verbose = CHECK_FLAG('v');
1396 if (CHECK_FLAG('4'))
1399 else if (CHECK_FLAG('6'))
1403 curl = (purl != NULL) ? purl : URL;
1405 if ((conn = fetch_connect(curl->host, curl->port, af, verbose)) == NULL)
1406 /* fetch_connect() has already set an error code */
1408 init_http_headerbuf(&headerbuf);
1409 if (strcasecmp(URL->scheme, SCHEME_HTTPS) == 0 && purl) {
1410 http_cmd(conn, "CONNECT %s:%d HTTP/1.1",
1411 URL->host, URL->port);
1412 http_cmd(conn, "Host: %s:%d",
1413 URL->host, URL->port);
1415 if (http_get_reply(conn) != HTTP_OK) {
1416 http_seterr(conn->err);
1419 /* Read and discard the rest of the proxy response */
1420 if (fetch_getln(conn) < 0) {
1425 switch ((h = http_next_header(conn, &headerbuf, &p))) {
1430 http_seterr(HTTP_PROTOCOL_ERROR);
1435 } while (h > hdr_end);
1437 if (strcasecmp(URL->scheme, SCHEME_HTTPS) == 0 &&
1438 fetch_ssl(conn, URL, verbose) == -1) {
1446 setsockopt(conn->sd, IPPROTO_TCP, TCP_NOPUSH, &val, sizeof(val));
1448 clean_http_headerbuf(&headerbuf);
1452 clean_http_headerbuf(&headerbuf);
1459 http_get_proxy(struct url * url, const char *flags)
1464 if (flags != NULL && strchr(flags, 'd') != NULL)
1466 if (fetch_no_proxy_match(url->host))
1468 if (((p = getenv("HTTP_PROXY")) || (p = getenv("http_proxy"))) &&
1469 *p && (purl = fetchParseURL(p))) {
1471 strcpy(purl->scheme, SCHEME_HTTP);
1473 purl->port = fetch_default_proxy_port(purl->scheme);
1474 if (strcasecmp(purl->scheme, SCHEME_HTTP) == 0)
1482 http_print_html(FILE *out, FILE *in)
1489 while ((line = fgetln(in, &len)) != NULL) {
1490 while (len && isspace((unsigned char)line[len - 1]))
1492 for (p = q = line; q < line + len; ++q) {
1493 if (comment && *q == '-') {
1494 if (q + 2 < line + len &&
1495 strcmp(q, "-->") == 0) {
1499 } else if (tag && !comment && *q == '>') {
1502 } else if (!tag && *q == '<') {
1504 fwrite(p, q - p, 1, out);
1506 if (q + 3 < line + len &&
1507 strcmp(q, "<!--") == 0) {
1514 fwrite(p, q - p, 1, out);
1520 /*****************************************************************************
1525 http_request(struct url *URL, const char *op, struct url_stat *us,
1526 struct url *purl, const char *flags)
1529 return (http_request_body(URL, op, us, purl, flags, NULL, NULL));
1533 * Send a request and process the reply
1535 * XXX This function is way too long, the do..while loop should be split
1536 * XXX off into a separate function.
1539 http_request_body(struct url *URL, const char *op, struct url_stat *us,
1540 struct url *purl, const char *flags, const char *content_type,
1544 char hbuf[MAXHOSTNAMELEN + 7], *host;
1546 struct url *url, *new;
1547 int chunked, direct, ims, noredirect, verbose;
1549 off_t offset, clength, length, size;
1554 struct tm *timestruct;
1555 http_headerbuf_t headerbuf;
1556 http_auth_challenges_t server_challenges;
1557 http_auth_challenges_t proxy_challenges;
1560 /* The following calls don't allocate anything */
1561 init_http_headerbuf(&headerbuf);
1562 init_http_auth_challenges(&server_challenges);
1563 init_http_auth_challenges(&proxy_challenges);
1565 direct = CHECK_FLAG('d');
1566 noredirect = CHECK_FLAG('A');
1567 verbose = CHECK_FLAG('v');
1568 ims = CHECK_FLAG('i');
1570 if (direct && purl) {
1575 /* try the provided URL first */
1581 e = HTTP_PROTOCOL_ERROR;
1593 url->port = fetch_default_port(url->scheme);
1595 /* were we redirected to an FTP URL? */
1596 if (purl == NULL && strcmp(url->scheme, SCHEME_FTP) == 0) {
1597 if (strcmp(op, "GET") == 0)
1598 return (ftp_request(url, "RETR", us, purl, flags));
1599 else if (strcmp(op, "HEAD") == 0)
1600 return (ftp_request(url, "STAT", us, purl, flags));
1603 /* connect to server or proxy */
1604 if ((conn = http_connect(url, purl, flags)) == NULL)
1607 /* append port number only if necessary */
1609 if (url->port != fetch_default_port(url->scheme)) {
1610 snprintf(hbuf, sizeof(hbuf), "%s:%d", host, url->port);
1616 fetch_info("requesting %s://%s%s",
1617 url->scheme, host, url->doc);
1618 if (purl && strcasecmp(URL->scheme, SCHEME_HTTPS) != 0) {
1619 http_cmd(conn, "%s %s://%s%s HTTP/1.1",
1620 op, url->scheme, host, url->doc);
1622 http_cmd(conn, "%s %s HTTP/1.1",
1626 if (ims && url->ims_time) {
1627 timestruct = gmtime((time_t *)&url->ims_time);
1628 (void)strftime(timebuf, 80, "%a, %d %b %Y %T GMT",
1631 fetch_info("If-Modified-Since: %s", timebuf);
1632 http_cmd(conn, "If-Modified-Since: %s", timebuf);
1635 http_cmd(conn, "Host: %s", host);
1638 * Proxy authorization: we only send auth after we received
1639 * a 407 error. We do not first try basic anyway (changed
1640 * when support was added for digest-auth)
1642 if (purl && proxy_challenges.valid) {
1643 http_auth_params_t aparams;
1644 init_http_auth_params(&aparams);
1645 if (*purl->user || *purl->pwd) {
1646 aparams.user = strdup(purl->user);
1647 aparams.password = strdup(purl->pwd);
1648 } else if ((p = getenv("HTTP_PROXY_AUTH")) != NULL &&
1650 if (http_authfromenv(p, &aparams) < 0) {
1651 http_seterr(HTTP_NEED_PROXY_AUTH);
1654 } else if (fetch_netrc_auth(purl) == 0) {
1655 aparams.user = strdup(purl->user);
1656 aparams.password = strdup(purl->pwd);
1658 http_authorize(conn, "Proxy-Authorization",
1659 &proxy_challenges, &aparams, url);
1660 clean_http_auth_params(&aparams);
1664 * Server authorization: we never send "a priori"
1665 * Basic auth, which used to be done if user/pass were
1666 * set in the url. This would be weird because we'd send the
1667 * password in the clear even if Digest is finally to be
1668 * used (it would have made more sense for the
1669 * pre-digest version to do this when Basic was specified
1670 * in the environment)
1672 if (server_challenges.valid) {
1673 http_auth_params_t aparams;
1674 init_http_auth_params(&aparams);
1675 if (*url->user || *url->pwd) {
1676 aparams.user = strdup(url->user);
1677 aparams.password = strdup(url->pwd);
1678 } else if ((p = getenv("HTTP_AUTH")) != NULL &&
1680 if (http_authfromenv(p, &aparams) < 0) {
1681 http_seterr(HTTP_NEED_AUTH);
1684 } else if (fetch_netrc_auth(url) == 0) {
1685 aparams.user = strdup(url->user);
1686 aparams.password = strdup(url->pwd);
1687 } else if (fetchAuthMethod &&
1688 fetchAuthMethod(url) == 0) {
1689 aparams.user = strdup(url->user);
1690 aparams.password = strdup(url->pwd);
1692 http_seterr(HTTP_NEED_AUTH);
1695 http_authorize(conn, "Authorization",
1696 &server_challenges, &aparams, url);
1697 clean_http_auth_params(&aparams);
1701 if ((p = getenv("HTTP_ACCEPT")) != NULL) {
1703 http_cmd(conn, "Accept: %s", p);
1705 http_cmd(conn, "Accept: */*");
1707 if ((p = getenv("HTTP_REFERER")) != NULL && *p != '\0') {
1708 if (strcasecmp(p, "auto") == 0)
1709 http_cmd(conn, "Referer: %s://%s%s",
1710 url->scheme, host, url->doc);
1712 http_cmd(conn, "Referer: %s", p);
1714 if ((p = getenv("HTTP_USER_AGENT")) != NULL) {
1715 /* no User-Agent if defined but empty */
1717 http_cmd(conn, "User-Agent: %s", p);
1719 /* default User-Agent */
1720 http_cmd(conn, "User-Agent: %s " _LIBFETCH_VER,
1723 if (url->offset > 0)
1724 http_cmd(conn, "Range: bytes=%lld-", (long long)url->offset);
1725 http_cmd(conn, "Connection: close");
1728 body_len = strlen(body);
1729 http_cmd(conn, "Content-Length: %zu", body_len);
1730 if (content_type != NULL)
1731 http_cmd(conn, "Content-Type: %s", content_type);
1737 fetch_write(conn, body, body_len);
1740 * Force the queued request to be dispatched. Normally, one
1741 * would do this with shutdown(2) but squid proxies can be
1742 * configured to disallow such half-closed connections. To
1743 * be compatible with such configurations, fiddle with socket
1744 * options to force the pending data to be written.
1747 setsockopt(conn->sd, IPPROTO_TCP, TCP_NOPUSH, &val,
1750 setsockopt(conn->sd, IPPROTO_TCP, TCP_NODELAY, &val,
1754 switch (http_get_reply(conn)) {
1757 case HTTP_NOT_MODIFIED:
1760 case HTTP_MOVED_PERM:
1761 case HTTP_MOVED_TEMP:
1762 case HTTP_TEMP_REDIRECT:
1763 case HTTP_PERM_REDIRECT:
1764 case HTTP_SEE_OTHER:
1765 case HTTP_USE_PROXY:
1767 * Not so fine, but we still have to read the
1768 * headers to get the new location.
1771 case HTTP_NEED_AUTH:
1772 if (server_challenges.valid) {
1774 * We already sent out authorization code,
1775 * so there's nothing more we can do.
1777 http_seterr(conn->err);
1780 /* try again, but send the password this time */
1782 fetch_info("server requires authorization");
1784 case HTTP_NEED_PROXY_AUTH:
1785 if (proxy_challenges.valid) {
1787 * We already sent our proxy
1788 * authorization code, so there's
1789 * nothing more we can do. */
1790 http_seterr(conn->err);
1793 /* try again, but send the password this time */
1795 fetch_info("proxy requires authorization");
1797 case HTTP_BAD_RANGE:
1799 * This can happen if we ask for 0 bytes because
1800 * we already have the whole file. Consider this
1801 * a success for now, and check sizes later.
1804 case HTTP_PROTOCOL_ERROR:
1810 http_seterr(conn->err);
1813 /* fall through so we can get the full error message */
1816 /* get headers. http_next_header expects one line readahead */
1817 if (fetch_getln(conn) == -1) {
1822 switch ((h = http_next_header(conn, &headerbuf, &p))) {
1827 http_seterr(HTTP_PROTOCOL_ERROR);
1829 case hdr_content_length:
1830 http_parse_length(p, &clength);
1832 case hdr_content_range:
1833 http_parse_range(p, &offset, &length, &size);
1835 case hdr_last_modified:
1836 http_parse_mtime(p, &mtime);
1839 if (!HTTP_REDIRECT(conn->err))
1842 * if the A flag is set, we don't follow
1843 * temporary redirects.
1846 conn->err != HTTP_MOVED_PERM &&
1847 conn->err != HTTP_PERM_REDIRECT &&
1848 conn->err != HTTP_USE_PROXY) {
1855 fetch_info("%d redirect to %s", conn->err, p);
1858 new = fetchMakeURL(url->scheme, url->host, url->port, p,
1859 url->user, url->pwd);
1861 new = fetchParseURL(p);
1863 /* XXX should set an error code */
1864 DEBUG(fprintf(stderr, "failed to parse new URL\n"));
1868 /* Only copy credentials if the host matches */
1869 if (!strcmp(new->host, url->host) && !*new->user && !*new->pwd) {
1870 strcpy(new->user, url->user);
1871 strcpy(new->pwd, url->pwd);
1873 new->offset = url->offset;
1874 new->length = url->length;
1876 case hdr_transfer_encoding:
1878 chunked = (strcasecmp(p, "chunked") == 0);
1880 case hdr_www_authenticate:
1881 if (conn->err != HTTP_NEED_AUTH)
1883 if (http_parse_authenticate(p, &server_challenges) == 0)
1886 case hdr_proxy_authenticate:
1887 if (conn->err != HTTP_NEED_PROXY_AUTH)
1889 if (http_parse_authenticate(p, &proxy_challenges) == 0)
1898 } while (h > hdr_end);
1900 /* we need to provide authentication */
1901 if (conn->err == HTTP_NEED_AUTH ||
1902 conn->err == HTTP_NEED_PROXY_AUTH) {
1904 if ((conn->err == HTTP_NEED_AUTH &&
1905 !server_challenges.valid) ||
1906 (conn->err == HTTP_NEED_PROXY_AUTH &&
1907 !proxy_challenges.valid)) {
1908 /* 401/7 but no www/proxy-authenticate ?? */
1909 DEBUG(fprintf(stderr, "401/7 and no auth header\n"));
1917 /* requested range not satisfiable */
1918 if (conn->err == HTTP_BAD_RANGE) {
1919 if (url->offset > 0 && url->length == 0) {
1920 /* asked for 0 bytes; fake it */
1921 offset = url->offset;
1923 conn->err = HTTP_OK;
1926 http_seterr(conn->err);
1931 /* we have a hit or an error */
1932 if (conn->err == HTTP_OK
1933 || conn->err == HTTP_NOT_MODIFIED
1934 || conn->err == HTTP_PARTIAL
1935 || HTTP_ERROR(conn->err))
1938 /* all other cases: we got a redirect */
1940 clean_http_auth_challenges(&server_challenges);
1944 DEBUG(fprintf(stderr, "redirect with no new location\n"));
1952 /* we failed, or ran out of retries */
1958 DEBUG(fprintf(stderr, "offset %lld, length %lld,"
1959 " size %lld, clength %lld\n",
1960 (long long)offset, (long long)length,
1961 (long long)size, (long long)clength));
1963 if (conn->err == HTTP_NOT_MODIFIED) {
1964 http_seterr(HTTP_NOT_MODIFIED);
1968 /* check for inconsistencies */
1969 if (clength != -1 && length != -1 && clength != length) {
1970 http_seterr(HTTP_PROTOCOL_ERROR);
1976 length = offset + clength;
1977 if (length != -1 && size != -1 && length != size) {
1978 http_seterr(HTTP_PROTOCOL_ERROR);
1987 us->atime = us->mtime = mtime;
1991 if (URL->offset > 0 && offset > URL->offset) {
1992 http_seterr(HTTP_PROTOCOL_ERROR);
1996 /* report back real offset and size */
1997 URL->offset = offset;
1998 URL->length = clength;
2000 /* wrap it up in a FILE */
2001 if ((f = http_funopen(conn, chunked)) == NULL) {
2011 if (HTTP_ERROR(conn->err)) {
2012 http_print_html(stderr, f);
2016 clean_http_headerbuf(&headerbuf);
2017 clean_http_auth_challenges(&server_challenges);
2018 clean_http_auth_challenges(&proxy_challenges);
2028 clean_http_headerbuf(&headerbuf);
2029 clean_http_auth_challenges(&server_challenges);
2030 clean_http_auth_challenges(&proxy_challenges);
2035 /*****************************************************************************
2040 * Retrieve and stat a file by HTTP
2043 fetchXGetHTTP(struct url *URL, struct url_stat *us, const char *flags)
2045 return (http_request(URL, "GET", us, http_get_proxy(URL, flags), flags));
2049 * Retrieve a file by HTTP
2052 fetchGetHTTP(struct url *URL, const char *flags)
2054 return (fetchXGetHTTP(URL, NULL, flags));
2058 * Store a file by HTTP
2061 fetchPutHTTP(struct url *URL __unused, const char *flags __unused)
2063 warnx("fetchPutHTTP(): not implemented");
2068 * Get an HTTP document's metadata
2071 fetchStatHTTP(struct url *URL, struct url_stat *us, const char *flags)
2075 f = http_request(URL, "HEAD", us, http_get_proxy(URL, flags), flags);
2086 fetchListHTTP(struct url *url __unused, const char *flags __unused)
2088 warnx("fetchListHTTP(): not implemented");
2093 fetchReqHTTP(struct url *URL, const char *method, const char *flags,
2094 const char *content_type, const char *body)
2097 return (http_request_body(URL, method, NULL, http_get_proxy(URL, flags),
2098 flags, content_type, body));