Matching a href spec with Lua regex

[vamshi]

Sorry for the double post, but wanted to post the complete conf ... just in
case there was a mistake


    server {

        listen       80;
        server_name  127.0.0.1 10.0.9.44;

        set $_ActualTarget "";

        location / {

            rewrite_by_lua '
                local _args = ngx.req.get_uri_args()
                ngx.var._ActualTarget = _args["_url_"];
                _args["_url_"] = nil
                print(ngx.var._ActualTarget)
                ngx.req.set_uri_args(_args);
            ';

            resolver 8.8.8.8;
            proxy_pass_request_body on;
            proxy_pass_request_headers on;
            proxy_pass $scheme://$_ActualTarget;

            header_filter_by_lua '
                ngx.header.content_length = nil
                ngx.header.set_cookie = nil

                if ngx.header.location then
                    local _location = ngx.header.location
                    _location = ngx.escape_uri(_location)
                    _location = "http://10.0.9.44/?_url_=" .. _location
                    ngx.header.location = _location
                end
            ';

            body_filter_by_lua '
                local escUri = function (m)
                    local _str = "href=\\"http://10.0.9.44/?_url_="
                    _str = _str .. ngx.escape_uri(m[1]) .. "\\""
                    return _str
                end

                local newStr, n, err = ngx.re.gsub(ngx.arg[1],
"href=\\"(.*)\\"", escUri, "ijox")
                print(ngx.arg[1])
            ';
        }

        #
        # redirect server error pages to the static page /50x.html
        #

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /var/www/html;
        }
    }

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,251234,251245#msg-251245