init

selenium/base/fileserver/main.go

@@ -0,0 +1,84 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+)
+
+func main() {
+	dir, err := downloadsDir()
+	if err != nil {
+		log.Fatal(err)
+	}
+	log.Fatal(http.ListenAndServe(":8080", mux(dir)))
+}
+
+func downloadsDir() (string, error) {
+	homeDir := os.Getenv("HOME")
+	if homeDir == "" {
+		homeDir = "/home/selenium"
+	}
+	dir := filepath.Join(homeDir, "Downloads")
+	err := os.MkdirAll(dir, 0755)
+	if err != nil {
+		return "", fmt.Errorf("failed to create downloads dir: %v", err)
+	}
+	return dir, nil
+}
+
+const jsonParam = "json"
+
+func mux(dir string) http.Handler {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		if r.Method == http.MethodDelete {
+			deleteFileIfExists(w, r, dir)
+			return
+		}
+		if _, ok := r.URL.Query()[jsonParam]; ok {
+			listFilesAsJson(w, dir)
+			return
+		}
+		http.FileServer(http.Dir(dir)).ServeHTTP(w, r)
+	})
+	return mux
+}
+
+func listFilesAsJson(w http.ResponseWriter, dir string) {
+	files, err := ioutil.ReadDir(dir)
+	sort.Slice(files, func(i, j int) bool {
+		return files[i].ModTime().After(files[j].ModTime())
+	})
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	ret := []string{}
+	for _, f := range files {
+		ret = append(ret, f.Name())
+	}
+	w.Header().Add("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(ret)
+}
+
+func deleteFileIfExists(w http.ResponseWriter, r *http.Request, dir string) {
+	fileName := strings.TrimPrefix(r.URL.Path, "/")
+	filePath := filepath.Join(dir, fileName)
+	_, err := os.Stat(filePath)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("Unknown file %s", fileName), http.StatusNotFound)
+		return
+	}
+	err = os.Remove(filePath)
+	if err != nil {
+		http.Error(w, fmt.Sprintf("Failed to delete file %s: %v", fileName, err), http.StatusInternalServerError)
+		return
+	}
+}