gistfile1.nginxconf

worker_processes 1;
error_log stderr notice;
daemon off;

events {
  worker_connections 1024;
}

http {
  server {
    listen 8181;
    default_type text/html;

    location /proxy {
        internal;
        rewrite_by_lua "
          local req = ngx.req
          print(ngx.var._url)

          for k,v in pairs(req.get_headers()) do
            if k ~= 'content-length' then
              req.clear_header(k)
            end
          end

          if ngx.ctx.headers then
            for k,v in pairs(ngx.ctx.headers) do
              req.set_header(k, v)
            end
          end
        ";

        resolver 8.8.8.8;
        proxy_http_version 1.1;
        proxy_pass $_url;
    }


    # ../ngx_lua-0.9.2/src/ngx_http_lua_headers_in.c:706: ngx_http_lua_rm_header_helper: Assertion `cur->next != ((void *)0)' failed.
    # 2013/12/01 20:34:21 [notice] 1903#0: signal 17 (SIGCHLD) received
    # 2013/12/01 20:34:21 [alert] 1903#0: worker process 1926 exited on signal 6 (core dumped)
    # 2013/12/01 20:34:21 [notice] 1903#0: start worker process 1992
    location /first {
      set $_url "";
      content_by_lua '
        local res = ngx.location.capture("/proxy", {
          ctx = {
            headers = {
              ["Content-type"] = "application/x-www-form-urlencoded"
            }
          },
          vars = { _url = "http://leafo.net" }
        })

        local res = ngx.location.capture("/proxy", {
          ctx = {
            headers = {
              ["x-some-date"] = "Sun, 01 Dec 2013 11:47:41 GMT",
              ["x-hello-world-header"] = "123412341234",
              ["Authorization"] = "Hello"
            }
          },
          vars = { _url = "http://leafo.net" }
        })
      ';
    }


    # ../ngx_lua-0.9.2/src/ngx_http_lua_headers_in.c:176: ngx_http_set_header_helper: Assertion `!(r->headers_in.headers.part.next == ((void *)0) && r->headers_in.headers.last != &r->headers_in.headers.part)' failed.
    # 2013/12/01 20:33:34 [notice] 1903#0: signal 17 (SIGCHLD) received
    # 2013/12/01 20:33:34 [alert] 1903#0: worker process 1911 exited on signal 6 (core dumped)
    # 2013/12/01 20:33:34 [notice] 1903#0: start worker process 1926
    location /second {
      set $_url "";
      content_by_lua '
        local res = ngx.location.capture("/proxy", {
          method = ngx.HTTP_POST,
          body = ("x"):rep(600),
          ctx = {
            headers = {
              ["Content-type"] = "application/x-www-form-urlencoded"
            }
          },
          vars = { _url = "http://leafo.net" }
        })

        local res = ngx.location.capture("/proxy", {
          ctx = {
            headers = {
              ["x-some-date"] = "Sun, 01 Dec 2013 11:47:41 GMT",
              ["x-hello-world-header"] = "123412341234",
              ["Authorization"] = "Hello"
            }
          },
          vars = { _url = "http://leafo.net" }
        })

        local res = ngx.location.capture("/proxy", {
          vars = { _url = "http://leafo.net" }
        })
      ';

    }

  }
}