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[MEDIUM] acl: support maching on 'path' component

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'path', 'path_reg', 'path_beg', 'path_end', 'path_sub', 'path_dir'
and 'path_dom' have been implemented to process the path component
of the URI. It starts after the host part, and stops before the
question mark.
This commit is contained in:
Willy Tarreau 2007-06-10 21:28:46 +02:00
parent 33a7e6901f
commit 737b0c12a6
1 changed files with 67 additions and 8 deletions
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75
src/proto_http.c
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@ -5457,6 +5457,64 @@ acl_fetch_hdr_val(struct proxy *px, struct session *l4, void *l7, int dir,
return 0;
}
/* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at
* the first '/' after the possible hostname, and ends before the possible '?'.
*/
static int
acl_fetch_path(struct proxy *px, struct session *l4, void *l7, int dir,
struct acl_expr *expr, struct acl_test *test)
{
struct http_txn *txn = l7;
char *ptr, *end;
ptr = txn->req.sol + txn->req.sl.rq.u;
end = ptr + txn->req.sl.rq.u_l;
if (ptr >= end)
return 0;
/* RFC2616, par. 5.1.2 :
* Request-URI = "*" | absuri | abspath | authority
*/
if (*ptr == '*')
return 0;
if (isalpha(*ptr)) {
/* this is a scheme as described by RFC3986, par. 3.1 */
ptr++;
while (ptr < end &&
(isalnum(*ptr) || *ptr == '+' || *ptr == '-' || *ptr == '.'))
ptr++;
/* skip '://' */
if (ptr == end || *ptr++ != ':')
return 0;
if (ptr == end || *ptr++ != '/')
return 0;
if (ptr == end || *ptr++ != '/')
return 0;
}
/* skip [user[:passwd]@]host[:[port]] */
while (ptr < end && *ptr != '/')
ptr++;
if (ptr == end)
return 0;
/* OK, we got the '/' ! */
test->ptr = ptr;
while (ptr < end && *ptr != '?')
ptr++;
test->len = ptr - test->ptr;
/* we do not need to set READ_ONLY because the data is in a buffer */
test->flags = ACL_TEST_F_VOL_1ST;
return 1;
}
/************************************************************************/
@ -5487,6 +5545,15 @@ static struct acl_kw_list acl_kws = {{ },{
{ "hdr_dom", acl_parse_str, acl_fetch_hdr, acl_match_dom },
{ "hdr_cnt", acl_parse_int, acl_fetch_hdr_cnt, acl_match_int },
{ "hdr_val", acl_parse_int, acl_fetch_hdr_val, acl_match_int },
{ "path", acl_parse_str, acl_fetch_path, acl_match_str },
{ "path_reg", acl_parse_reg, acl_fetch_path, acl_match_reg },
{ "path_beg", acl_parse_str, acl_fetch_path, acl_match_beg },
{ "path_end", acl_parse_str, acl_fetch_path, acl_match_end },
{ "path_sub", acl_parse_str, acl_fetch_path, acl_match_sub },
{ "path_dir", acl_parse_str, acl_fetch_path, acl_match_dir },
{ "path_dom", acl_parse_str, acl_fetch_path, acl_match_dom },
{ NULL, NULL, NULL, NULL },
#if 0
@ -5498,14 +5565,6 @@ static struct acl_kw_list acl_kws = {{ },{
{ "line_dir", acl_parse_str, acl_fetch_line, acl_match_dir },
{ "line_dom", acl_parse_str, acl_fetch_line, acl_match_dom },
{ "path", acl_parse_str, acl_fetch_path, acl_match_str },
{ "path_reg", acl_parse_reg, acl_fetch_path, acl_match_reg },
{ "path_beg", acl_parse_str, acl_fetch_path, acl_match_beg },
{ "path_end", acl_parse_str, acl_fetch_path, acl_match_end },
{ "path_sub", acl_parse_str, acl_fetch_path, acl_match_sub },
{ "path_dir", acl_parse_str, acl_fetch_path, acl_match_dir },
{ "path_dom", acl_parse_str, acl_fetch_path, acl_match_dom },
{ "cook", acl_parse_str, acl_fetch_cook, acl_match_str },
{ "cook_reg", acl_parse_reg, acl_fetch_cook, acl_match_reg },
{ "cook_beg", acl_parse_str, acl_fetch_cook, acl_match_beg },