finnally doooo and close #11

_embed/public/css/styles.css

@@ -45,7 +45,6 @@ button {
   padding: .5em 1em;
   margin-left: .5em;
   border-radius: .1em;
-  background-color;
   cursor: pointer;
   background: #2196f3;
   color: #fff;
@@ -376,10 +375,6 @@ header>div div {
   position: relative;
 }
 
-header .actions {
-  /* margin-left: auto; */
-}
-
 #logout {
   border-radius: 0;
   margin-left: auto;
@@ -1010,6 +1005,10 @@ header .actions {
   padding: .3em;
 }
 
+.prompt code {
+  word-wrap: break-word;
+}
+
 .prompt div,
 .help div {
   margin-top: 1em;

_embed/public/js/common.js

@@ -302,17 +302,40 @@ function openEvent (event) {
   return false
 }
 
+function getHash (event, hash) {
+  event.preventDefault()
+
+  let request = new window.XMLHttpRequest()
+  request.open('GET', `${window.location.pathname}?checksum=${hash}`, true)
+
+  request.onload = () => {
+    if (request.status >= 300) {
+      console.log(request.statusText)
+      return
+    }
+    event.target.parentElement.innerHTML = request.responseText
+  }
+  request.onerror = (e) => console.log(e)
+  request.send()
+}
+
 function infoEvent (event) {
   event.preventDefault()
   if (event.currentTarget.classList.contains('disabled')) {
     return
   }
 
+  let dir = false
   let link
 
   if (selectedItems.length) {
     link = document.getElementById(selectedItems[0]).dataset.url
+    dir = document.getElementById(selectedItems[0]).dataset.dir
   } else {
+    if (document.getElementById('listing') !== null) {
+      dir = true
+    }
+
     link = window.location.pathname
   }
 
@@ -326,6 +349,10 @@ function infoEvent (event) {
       clone.getElementById('content_length').innerHTML = xml.getElementsByTagName('getcontentlength')[0].innerHTML
       clone.getElementById('last_modified').innerHTML = xml.getElementsByTagName('getlastmodified')[0].innerHTML
 
+      if (dir === true || dir === 'true') {
+        clone.querySelector('.file-only').style.display = 'none'
+      }
+
       document.querySelector('body').appendChild(clone)
       document.querySelector('.overlay').classList.add('active')
       document.querySelector('.prompt').classList.add('active')

_embed/templates/base.tmpl

@@ -215,6 +215,14 @@
             <p><strong>Display Name:</strong> <span id="display_name"></span></p>
             <p><strong>Content Length:</strong> <span id="content_length"></span> Bytes</p>
             <p><strong>Last Modified:</strong> <span id="last_modified"></span></p>
+
+            <section class="file-only">
+                <p><strong>MD5:</strong> <code id="md5"><a href="#" onclick="getHash(event, 'md5')">show</a></code></p>
+                <p><strong>SHA1:</strong> <code id="sha1"><a href="#" onclick="getHash(event, 'sha1')">show</a></code></p>
+                <p><strong>SHA256:</strong> <code id="sha256"><a href="#" onclick="getHash(event, 'sha256')">show</a></code></p>
+                <p><strong>SHA512:</strong> <code id="sha512"><a href="#" onclick="getHash(event, 'sha512')">show</a></code></p>
+            </section>
+
             <div>
                 <button type="submit" onclick="closePrompt(event);" class="ok">OK</button>
             </div>

filemanager.go

@@ -173,6 +173,8 @@ func (f FileManager) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, err
 			case r.URL.Query().Get("raw") == "true" && !fi.IsDir:
 				http.ServeFile(w, r, fi.Path)
 				code, err = 0, nil
+			case !fi.IsDir && r.URL.Query().Get("checksum") != "":
+				code, err = handlers.Checksum(w, r, c, fi)
 			case fi.IsDir:
 				code, err = handlers.ServeListing(w, r, c, user, fi)
 			default:

handlers/checksum.go

@@ -0,0 +1,54 @@
+package handlers
+
+import (
+	"crypto/md5"
+	"crypto/sha1"
+	"crypto/sha256"
+	"crypto/sha512"
+	"encoding/hex"
+	e "errors"
+	"hash"
+	"io"
+	"net/http"
+	"os"
+
+	"github.com/hacdias/caddy-filemanager/config"
+	"github.com/hacdias/caddy-filemanager/file"
+	"github.com/hacdias/caddy-filemanager/utils/errors"
+)
+
+// Checksum calculates the hash of a file. Supports MD5, SHA1, SHA256 and SHA512.
+func Checksum(w http.ResponseWriter, r *http.Request, c *config.Config, i *file.Info) (int, error) {
+	query := r.URL.Query().Get("checksum")
+
+	file, err := os.Open(i.Path)
+	if err != nil {
+		return errors.ErrorToHTTPCode(err, true), err
+	}
+
+	defer file.Close()
+
+	var h hash.Hash
+
+	switch query {
+	case "md5":
+		h = md5.New()
+	case "sha1":
+		h = sha1.New()
+	case "sha256":
+		h = sha256.New()
+	case "sha512":
+		h = sha512.New()
+	default:
+		return http.StatusBadRequest, e.New("Unknown HASH type")
+	}
+
+	_, err = io.Copy(h, file)
+	if err != nil {
+		return http.StatusInternalServerError, err
+	}
+
+	val := hex.EncodeToString(h.Sum(nil))
+	w.Write([]byte(val))
+	return http.StatusOK, nil
+}