feat: some updates

server/internal/handlers/post.go

@@ -0,0 +1,47 @@
+package handlers
+
+import (
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+
+	"git.max-richter.dev/max/marka/server/internal/httpx"
+)
+
+func (h *File) post(w http.ResponseWriter, r *http.Request, target string) {
+	if err := os.MkdirAll(filepath.Dir(target), 0o755); err != nil {
+		httpx.WriteError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	tmpPath := target + ".tmp~"
+	f, err := os.Create(tmpPath)
+	if err != nil {
+		httpx.WriteError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	_, copyErr := io.Copy(f, r.Body)
+	closeErr := f.Close()
+
+	if copyErr != nil {
+		os.Remove(tmpPath)
+		httpx.WriteError(w, http.StatusInternalServerError, copyErr)
+		return
+	}
+	if closeErr != nil {
+		os.Remove(tmpPath)
+		httpx.WriteError(w, http.StatusInternalServerError, closeErr)
+		return
+	}
+
+	if err := os.Rename(tmpPath, target); err != nil {
+		os.Remove(tmpPath)
+		httpx.WriteError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	w.Header().Set("Location", r.URL.Path)
+	w.WriteHeader(http.StatusCreated)
+}