Option to lock user's password #215

Former-commit-id: e4f0afef51c437bd55c58f12f2f45ce8e8c84bb0 [formerly 549235edf9d6c43d1454a8a00d7b6f832bb8a3ca] [formerly 12d099aa44bff7d995b05680e405d8040f1e1850 [formerly fc9ca4f6a4]]
Former-commit-id: e9666db20e2b473095f21c03d59f2a8fbf07929e [formerly 87ee9eb83daed5180c6a3714c0ddc861668d747b]
Former-commit-id: 5a15b05320c1eb28324e50cad7ca980d3eebcb02

filemanager.go

@@ -286,6 +286,7 @@ var DefaultUser = User{
 	AllowEdit:     true,
 	AllowNew:      true,
 	AllowPublish:  true,
+	LockPassword:  false,
 	Commands:      []string{},
 	Rules:         []*Rule{},
 	CSS:           "",
@@ -325,6 +326,9 @@ type User struct {
 	// Locale is the language of the user.
 	Locale string `json:"locale"`
 
+	// Prevents the user to change its password.
+	LockPassword bool `json:"lockPassword"`
+
 	// These indicate if the user can perform certain actions.
 	AllowNew      bool `json:"allowNew"`      // Create files and folders
 	AllowEdit     bool `json:"allowEdit"`     // Edit/rename files