From e1ae3601c42264ad77e7f753af258bb4f48b057c Mon Sep 17 00:00:00 2001
From: 21pages <pages21@163.com>
Date: Sat, 19 Aug 2023 20:44:54 +0800
Subject: [PATCH] encrypt return emtpy if exceed max len to avoid another
 encrypt

Signed-off-by: 21pages <pages21@163.com>
---
 libs/hbb_common/src/password_security.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libs/hbb_common/src/password_security.rs b/libs/hbb_common/src/password_security.rs
index 28b32e68e..64dce1fdc 100644
--- a/libs/hbb_common/src/password_security.rs
+++ b/libs/hbb_common/src/password_security.rs
@@ -89,6 +89,9 @@ pub fn encrypt_str_or_original(s: &str, version: &str, max_len: usize) -> String
         log::error!("Duplicate encryption!");
         return s.to_owned();
     }
+    if s.bytes().len() > max_len {
+        return String::default();
+    }
     if version == "00" {
         if let Ok(s) = encrypt(s.as_bytes(), max_len) {
             return version.to_owned() + &s;
@@ -122,6 +125,9 @@ pub fn encrypt_vec_or_original(v: &[u8], version: &str, max_len: usize) -> Vec<u
         log::error!("Duplicate encryption!");
         return v.to_owned();
     }
+    if v.len() > max_len {
+        return vec![];
+    }
     if version == "00" {
         if let Ok(s) = encrypt(v, max_len) {
             let mut version = version.to_owned().into_bytes();