astraproxy/pages.go

package main

import (
	"bytes"
	"io"
	"net/http"
	"os"
	"strconv"

	_ "embed"
)

var index string = ""

func SendIndex(wr http.ResponseWriter, req *http.Request) {
	if index == "" {
		bytes, err := os.ReadFile("index.html")
		if err != nil {
			http.Error(wr, err.Error(), http.StatusInternalServerError)
			return
		}
		index = string(bytes)
	}

	resp := http.Response{
		Body:       io.NopCloser(bytes.NewBufferString(index)),
		StatusCode: 200,
	}
	resp.Header = http.Header{}
	resp.Header.Add("Content-Type", "text/html")
	resp.Header.Add("Content-Length", strconv.Itoa(len(index)))
	resp.Header.Add("Server", "astra")
	req.Response = &resp
	copyHeader(wr.Header(), resp.Header)
	wr.WriteHeader(resp.StatusCode)
	flush(wr)
	copyBody(wr, resp.Body)
}