Realip: fixed duplicate processing on redirects (ticket #1098). Duplicate processing was possible if the address set by realip was listed in set_realip_from, and there was an internal redirect so module context was cleared. This resulted in exactly the same address being set, so this wasn't a problem before the $realip_remote_addr variable was introduced, though now results in incorrect $realip_remote_addr being picked. Fix is to use ngx_http_realip_get_module_ctx() to look up module context even if it was cleared. Additionally, the order of checks was switched to check the configuration first as it looks more effective.

/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_PARSE_H_INCLUDED_
#define _NGX_PARSE_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


ssize_t ngx_parse_size(ngx_str_t *line);
off_t ngx_parse_offset(ngx_str_t *line);
ngx_int_t ngx_parse_time(ngx_str_t *line, ngx_uint_t is_sec);


#endif /* _NGX_PARSE_H_INCLUDED_ */