fix localstorage error

src/misc.rs

@@ -1,3 +1,4 @@
+use base64::{engine::general_purpose, Engine as _};
 use egui_plot::{Line, PlotPoint, PlotPoints, Points};
 use emath::Pos2;
 use getrandom::getrandom;
@@ -165,24 +166,27 @@ pub type HashBytes = [u8; HASH_LENGTH];
 
 #[allow(dead_code)]
 pub fn hashed_storage_create(hashbytes: HashBytes, data: &[u8]) -> String {
-	unsafe { std::mem::transmute::<Vec<u8>, String>([hashbytes.to_vec(), data.to_vec()].concat()) }
+	let combined_data = [hashbytes.to_vec(), data.to_vec()].concat();
+	general_purpose::STANDARD.encode(combined_data)
 }
 
 #[allow(dead_code)]
-pub fn hashed_storage_read(data: &str) -> Option<(HashBytes, &[u8])> {
+pub fn hashed_storage_read(data: &str) -> Option<(HashBytes, Vec<u8>)> {
+	// Decode base64 data
+	let decoded_bytes = general_purpose::STANDARD.decode(data).ok()?;
+
 	// Make sure data is long enough to decode
-	if HASH_LENGTH >= data.len() {
+	if HASH_LENGTH > decoded_bytes.len() {
 		return None;
 	}
 
-	// Transmute data into slice
-	let decoded_1: &[u8] = unsafe { std::mem::transmute::<&str, &[u8]>(data) };
+	// Split hash and data
+	let (hash_bytes, data_bytes) = decoded_bytes.split_at(HASH_LENGTH);
 
-	// Return hash and decoded data
-	Some((
-		unsafe { *(decoded_1[..HASH_LENGTH].as_ptr() as *const HashBytes) },
-		&decoded_1[HASH_LENGTH..],
-	))
+	// Convert hash bytes to HashBytes
+	let hash: HashBytes = hash_bytes.try_into().ok()?;
+
+	Some((hash, data_bytes.to_vec()))
 }
 
 /// Creates and returns random u64