hls url token handling without delimiter

src/processing/parser/hls.rs

@@ -6,16 +6,18 @@ use std::str;
 
 fn create_hls_session_token_and_url(secret: &[u8], session_token: u32, stream_url: &str) -> Option<String> {
     let token = hash_utils::u32_to_base64(session_token);
-    if let Ok(cookie_value) = obfuscate_text(secret, &format!("{token}@{stream_url}")) {
+    if let Ok(cookie_value) = obfuscate_text(secret, &format!("{token}{stream_url}")) {
         return Some(cookie_value);
     }
     None
 }
 
+const TOKEN_LEN: usize = 6;
 pub fn get_hls_session_token_and_url_from_token(secret: &[u8], token: &str) -> Option<(Option<u32>, String)> {
     if let Ok(decrypted) = deobfuscate_text(secret, token) {
-        let (session_token, stream_url) = decrypted.split_once('@')?;
-        return Some((hash_utils::base64_to_u32(session_token), stream_url.to_owned()));
+        let session_token: String = decrypted.chars().take(TOKEN_LEN).collect();
+        let stream_url: String = decrypted.chars().skip(TOKEN_LEN).collect();
+        return Some((hash_utils::base64_to_u32(&session_token), stream_url));
     }
     None
 }
@@ -96,3 +98,18 @@ pub fn rewrite_hls(user: &ProxyUserCredentials, props: &RewriteHlsProps) -> Stri
     result.push("\r\n".to_string());
     result.join("\r\n")
 }
+
+#[cfg(test)]
+mod test {
+    use rand::RngCore;
+    use crate::utils::hash_utils;
+
+    #[test]
+    fn test_token_size() {
+        for _i in 0..10_000 {
+            let session_token = rand::rng().next_u32();
+            assert_eq!(hash_utils::u32_to_base64(session_token).len(), 6);
+        }
+    }
+
+}