fix previous link; add more stuff

internal/file/upload.go

@@ -0,0 +1,57 @@
+package file
+
+import (
+	"io"
+	"log"
+	"mime/multipart"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/hacdias/caddy-filemanager/internal/config"
+)
+
+// Upload is used to handle the upload requests to the server
+func Upload(w http.ResponseWriter, r *http.Request, c *config.Config) (int, error) {
+	// Parse the multipart form in the request
+	err := r.ParseMultipartForm(100000)
+	if err != nil {
+		log.Println(err)
+		return http.StatusInternalServerError, err
+	}
+
+	// For each file header in the multipart form
+	for _, headers := range r.MultipartForm.File {
+		// Handle each file
+		for _, header := range headers {
+			// Open the first file
+			var src multipart.File
+			if src, err = header.Open(); nil != err {
+				return http.StatusInternalServerError, err
+			}
+
+			filename := strings.Replace(r.URL.Path, c.BaseURL, c.PathScope, 1)
+			filename = filename + header.Filename
+			filename = filepath.Clean(filename)
+
+			// Create the file
+			var dst *os.File
+			if dst, err = os.Create(filename); nil != err {
+				if os.IsExist(err) {
+					return http.StatusConflict, err
+				}
+				return http.StatusInternalServerError, err
+			}
+
+			// Copy the file content
+			if _, err = io.Copy(dst, src); nil != err {
+				return http.StatusInternalServerError, err
+			}
+
+			defer dst.Close()
+		}
+	}
+
+	return http.StatusOK, nil
+}