Import project

handlers.go

@@ -0,0 +1,117 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"mime"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strconv"
+)
+
+func HandleRoot(w http.ResponseWriter, r *http.Request) {
+	if r.RequestURI != "/" {
+		http.Error(w, "", http.StatusNotFound)
+		return
+	}
+
+	type FileInfo struct {
+		Name string
+		Size string
+		Date string
+	}
+
+	var data []FileInfo
+
+	err := filepath.Walk(config.StoragePath, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+		data = append(data, FileInfo{filepath.Base(path), sizeToApproxHuman(info.Size()), info.ModTime().Format("02.01.2006 15:04")})
+
+		return nil
+	})
+
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	err = templates.ExecuteTemplate(w, "index.htm", data)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}
+
+func HandleUpload(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		http.Error(w, "wrong method", http.StatusBadRequest)
+		return
+	}
+
+	err := r.ParseMultipartForm(32 << 20)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	file, header, err := r.FormFile("file")
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	defer file.Close()
+
+	filePath := filepath.Join(config.StoragePath, header.Filename)
+	if _, err := os.Stat(filePath); !os.IsNotExist(err) {
+		http.Error(w, "файл с таким именем уже существует", http.StatusBadRequest)
+		return
+	}
+
+	f, err := os.Create(filePath)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer f.Close()
+
+	_, err = io.Copy(f, file)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}
+
+func HandleDownload(w http.ResponseWriter, r *http.Request) {
+	filename := filepath.Base(r.FormValue("filename"))
+
+	if filename == "" {
+		http.Error(w, `"filename" field can not be empty`, http.StatusBadRequest)
+		return
+	}
+
+	f, err := os.Open(filepath.Join(config.StoragePath, filename))
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer f.Close()
+
+	fileStat, err := f.Stat()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, filename))
+	w.Header().Set("Content-Type", mime.TypeByExtension(filepath.Ext(filename)))
+	w.Header().Set("Accept-Ranges", "none")
+	w.Header().Set("Content-Length", strconv.Itoa(int(fileStat.Size())))
+
+	io.CopyBuffer(w, f, make([]byte, 4096))
+}