added password generator function to permission editor, closes #265

static/moderator.js

@@ -191,8 +191,11 @@ var moderator = {
 							html += '<option value="none">Kein Zugriff</option>';
 						html += '</select>';
 						html += '<input class="col-xs-12 passwordinput authuser" type="text" placeholder="Benutzername">';
-						html += '<input class="col-xs-12 passwordinput authpassword" type="text" placeholder="Passwort">';
+						html += '<input class="col-xs-10 passwordinput authpassword" type="text" placeholder="Passwort">'
+						html += '<button class="col-xs-2 passwordinput authpgen" type="button" onclick="$(\'.authpassword\',this.parentNode).val(moderator.permissioneditor.randompw());"><span class="fa fa-plus" aria-hidden="true"></span></button>'
+
 						html += '<input class="col-xs-12 authl2p" type="text" placeholder="Lernraum" style="display: none;">';
+
 						html += '<button class="col-xs-6" onclick="moderator.permissioneditor.addbtnclick(this)">Add</button>';
 						//html += '<button class="col-xs-4" onclick="moderator.permissionedior.updatebtnclick(this)">Update</button>';
 						html += '<button class="col-xs-6" onclick="moderator.permissioneditor.delbtnclick(this)">Delete</button>';
@@ -248,6 +251,15 @@ var moderator = {
 					$(".authl2p",element.parentElement).hide();
 					break;
 			}
+		},
+		randompw: function () {;
+			var array = new Uint8Array(10);
+			window.crypto.getRandomValues(array);
+			var result = '';
+			for (var i = 0; i< array.length; i++) {
+				result += String.fromCharCode(48+ (array[i]/255.0)*74);
+			}
+			return result;
 		}
 	},
 	plots: {