init

lib/web.go

@@ -0,0 +1,58 @@
+package lib
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+)
+
+func Run(bind string, f *Forgejo) (*http.Server, error) {
+	if f == nil {
+		return nil, errors.New("forgejo is nil")
+	}
+	s := &http.Server{
+		Addr:    bind,
+		Handler: http.HandlerFunc(f.handle),
+	}
+	return s, nil
+}
+
+func trySet(h http.Header, key, value string) {
+	if value == "" {
+		h.Del(key)
+		return
+	}
+	h.Set(key, value)
+}
+
+func (f *Forgejo) handle(w http.ResponseWriter, r *http.Request) {
+	arr := strings.Split(r.URL.Path[1:], "/")
+	if len(arr) < 2 {
+		w.WriteHeader(http.StatusBadRequest)
+		return
+	}
+	user, repo := arr[0], arr[1]
+	if user == "u" {
+		user, repo = repo, f.Branch
+	}
+	file := "index.html"
+	if l := len(arr); l > 2 {
+		if arr[l-1] == "" {
+			arr[l-1] = "index.html"
+		}
+		file = strings.Join(arr[2:], "/")
+	}
+
+	info, content, err := f.GetFile(r.Context(), user, repo, f.Branch, file)
+	if err != nil {
+		w.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	trySet(w.Header(), "Etag", info.ETag)
+	trySet(w.Header(), "Last-Modified", info.LastModified)
+	trySet(w.Header(), "Content-Length", info.Size)
+	w.WriteHeader(http.StatusOK)
+	io.Copy(w, content)
+}