more tutorial

examples/tutorial/hotfunctions/http/func.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"strconv"
+)
+
+func main() {
+	for {
+		res := http.Response{
+			Proto:      "HTTP/1.1",
+			ProtoMajor: 1,
+			ProtoMinor: 1,
+			StatusCode: 200,
+			Status:     "OK",
+		}
+
+		r := bufio.NewReader(os.Stdin)
+		req, err := http.ReadRequest(r)
+
+		var buf bytes.Buffer
+		if err != nil {
+			res.StatusCode = 500
+			res.Status = http.StatusText(res.StatusCode)
+			fmt.Fprintln(&buf, err)
+		} else {
+			l, _ := strconv.Atoi(req.Header.Get("Content-Length"))
+			p := make([]byte, l)
+			r.Read(p)
+			fmt.Fprintf(&buf, "Hello %s\n", p)
+			for k, vs := range req.Header {
+				fmt.Fprintf(&buf, "ENV: %s %#v\n", k, vs)
+			}
+		}
+
+		res.Body = ioutil.NopCloser(&buf)
+		res.ContentLength = int64(buf.Len())
+		res.Write(os.Stdout)
+	}
+}