teafolio/page_imageredir.go

package main

import (
	"fmt"
	"net/http"
)

func (this *Application) Bannerpage(w http.ResponseWriter, r *http.Request, repoName string) {
	ctx := r.Context()

	images, err := this.gitea.ImageFilesForRepo(ctx, repoName)
	if err != nil {
		this.internalError(w, r, fmt.Errorf("listing images: %w", err))
		return
	}

	if len(images) == 0 {
		w.Header().Set(`Location`, `/static/no_image.png`)
		w.WriteHeader(301)
		return
	}

	w.Header().Set(`Location`, images[0].RawURL)
	w.WriteHeader(301)
}