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Referer module: fixed regex matching against HTTPS referers.

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When matching a compiled regex against value in the "Referer" header field,
the length was calculated incorrectly for strings that start from "https://".
This might cause matching to fail for regexes with end-of-line anchors.

Patch by Liangbin Li.
This commit is contained in:
Sergey Kandaurov 2013-08-13 17:47:04 +04:00
parent 65e37b4a12
commit 9aaf256e40
1 changed files with 3 additions and 1 deletions
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4
src/http/modules/ngx_http_referer_module.c
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@ -147,10 +147,12 @@ ngx_http_referer_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
if (ngx_strncasecmp(ref, (u_char *) "http://", 7) == 0) {
ref += 7;
len -= 7;
goto valid_scheme;
} else if (ngx_strncasecmp(ref, (u_char *) "https://", 8) == 0) {
ref += 8;
len -= 8;
goto valid_scheme;
}
}
@ -191,7 +193,7 @@ valid_scheme:
ngx_int_t rc;
ngx_str_t referer;
referer.len = len - 7;
referer.len = len;
referer.data = ref;
rc = ngx_regex_exec_array(rlcf->regex, &referer, r->connection->log);