initial

.gitignore

@@ -0,0 +1 @@
+welhproxy

Makefile

@@ -0,0 +1,2 @@
+all:
+	go build welhproxy.go

go.mod

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+module git.dynatron.me/amigan/welhproxy
+
+go 1.21.6

welhproxy.go

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+package main
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"log"
+	"net/http"
+	"strings"
+)
+
+type WELHProxy struct {
+	Listen string
+}
+
+func (p *WELHProxy) String() string {
+	return p.Listen
+}
+
+func (p *WELHProxy) fetchSite(_ http.ResponseWriter, r *http.Request) (url string, err error) {
+	req, err := http.NewRequestWithContext(r.Context(), "GET", "https://welh.radio12345.com/openfire.ajax.php?radio_id=1172158", nil)
+	if err != nil {
+		return "", err
+	}
+
+	getResp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return "", err
+	}
+
+	getResp.Body.Close()
+	req, err = http.NewRequestWithContext(r.Context(), "GET", "https://welh.radio12345.com/", nil)
+	if err != nil {
+		return "", err
+	}
+
+	getResp, err = http.DefaultClient.Do(req)
+	if err != nil {
+		return "", err
+	}
+
+	defer getResp.Body.Close()
+
+	if getResp.StatusCode < 300 && getResp.StatusCode >= 200 {
+		s := bufio.NewScanner(getResp.Body)
+		for s.Scan() {
+			t := strings.TrimSpace(s.Text())
+			if strings.Contains(t, `<div style="display:none" id="urladdress">`) {
+				if !s.Scan() {
+					return "", errors.New("scan")
+				}
+				return strings.TrimSpace(strings.ReplaceAll(s.Text(), "</div>", "")), nil
+			}
+		}
+		return "", fmt.Errorf("could not find stream URL")
+	}
+
+	return "", fmt.Errorf("failed to get url: %+v", getResp)
+}
+
+func (p *WELHProxy) handle(w http.ResponseWriter, r *http.Request) {
+	log.Println(r)
+	url, err := p.fetchSite(w, r)
+	if err != nil {
+		log.Println(err)
+	}
+	http.Redirect(w, r, url, http.StatusFound)
+}
+
+func (p *WELHProxy) Go() {
+	http.HandleFunc("/", p.handle)
+	log.Fatal(http.ListenAndServe(p.Listen, nil))
+}
+
+func NewWELHProxy(addr string) *WELHProxy {
+	return &WELHProxy{
+		Listen: addr,
+	}
+}
+
+func main() {
+	server := NewWELHProxy(":8534")
+	log.Printf("welhproxy starting on %s", server)
+	server.Go()
+}