make updates

single.go

@@ -1,10 +1,67 @@
 package filemanager
 
-import "net/http"
+import (
+	"encoding/base64"
+	"html"
+	"io/ioutil"
+	"mime"
+	"net/http"
+	"path/filepath"
+	"regexp"
+)
+
+var (
+	videoRegex = regexp.MustCompile("video[/]")
+	audioRegex = regexp.MustCompile("audio[/]")
+	imageRegex = regexp.MustCompile("image[/]")
+)
+
+type File struct {
+	*FileInfo
+	Content string
+}
 
 // ServeSingleFile redirects the request for the respective method
-func (f FileManager) ServeSingleFile(w http.ResponseWriter, r *http.Request, file http.File, c *Config) (int, error) {
-	w.Header().Set("Content-Type", "text/plain")
-	w.Write([]byte("Hello"))
-	return 200, nil
+func (f FileManager) ServeSingleFile(w http.ResponseWriter, r *http.Request, file *InfoRequest, c *Config) (int, error) {
+	fullpath := c.PathScope + file.Path
+	fullpath = filepath.Clean(fullpath)
+
+	raw, err := ioutil.ReadFile(fullpath)
+	if err != nil {
+		return http.StatusInternalServerError, err
+	}
+
+	base := base64.StdEncoding.EncodeToString(raw)
+	mimetype := mime.TypeByExtension(filepath.Ext(file.Path))
+	data := "data:" + mimetype + ";base64," + base
+
+	page := &Page{
+		Info: &PageInfo{
+			Name: file.Path,
+			Path: file.Path,
+			Data: map[string]string{
+				"Type":    RetrieveContentType(mimetype),
+				"Base64":  data,
+				"Content": html.EscapeString(string(raw)),
+			},
+		},
+	}
+
+	return page.PrintAsHTML(w, "single")
+}
+
+func RetrieveContentType(name string) string {
+	if videoRegex.FindString(name) != "" {
+		return "video"
+	}
+
+	if audioRegex.FindString(name) != "" {
+		return "audio"
+	}
+
+	if imageRegex.FindString(name) != "" {
+		return "image"
+	}
+
+	return "text"
 }