Validate page 1 header

core/storage/encryption.rs

@@ -65,7 +65,7 @@ use turso_macros::{match_ignore_ascii_case, AtomicEnum};
 /// ```
 ///
 /// constants used for the Turso page header in the encrypted dbs.
-const TURSO_HEADER_PREFIX: &[u8] = b"Turso";
+pub const TURSO_HEADER_PREFIX: &[u8] = b"Turso";
 const TURSO_VERSION: u8 = 0x00;
 const VERSION_OFFSET: usize = 5;
 const CIPHER_OFFSET: usize = 6;

core/storage/page_cache.rs

@@ -294,7 +294,7 @@ impl PageCache {
         // However, if we do not evict that page from the page cache, we will return an unloaded page later which will trigger
         // assertions later on. This is worsened by the fact that page cache is not per `Statement`, so you can abort a completion
         // in one Statement, and trigger some error in the next one if we don't evict the page here.
-        if !page.is_loaded() && !page.is_locked() {
+        if (!page.is_loaded() || page.get().contents.is_none()) && !page.is_locked() {
             self.delete(*key)?;
             return Ok(None);
         }