ngx_http_variable_remote_user 63 http/ngx_http_variables.c static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r, ngx_http_variable_remote_user 202 http/ngx_http_variables.c { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 },