feat: make refresh update the signing key type of sessions (#180)

Author: porcellus

CHANGELOG.md

@@ -9,6 +9,9 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Replace `TotpNotEnabledError` with `UnknownUserIdTotpError`.
 - Support for MFA recipe
+- Adds a new `useStaticKey` param to `updateSessionInfo_Transaction`
+  - This enables smooth switching between `useDynamicAccessTokenSigningKey` settings by allowing refresh calls to
+    change the signing key type of a session
 
 ## [5.0.6] - 2023-12-05
 

src/main/java/io/supertokens/storage/postgresql/Start.java

@@ -644,11 +644,11 @@ public SessionInfo getSessionInfo_Transaction(TenantIdentifier tenantIdentifier,
     @Override
     public void updateSessionInfo_Transaction(TenantIdentifier tenantIdentifier, TransactionConnection con,
                                               String sessionHandle, String refreshTokenHash2,
-                                              long expiry) throws StorageQueryException {
+                                              long expiry, boolean useStaticKey) throws StorageQueryException {
         Connection sqlCon = (Connection) con.getConnection();
         try {
             SessionQueries.updateSessionInfo_Transaction(this, sqlCon, tenantIdentifier, sessionHandle,
-                    refreshTokenHash2, expiry);
+                    refreshTokenHash2, expiry, useStaticKey);
         } catch (SQLException e) {
             throw new StorageQueryException(e);
         }

src/main/java/io/supertokens/storage/postgresql/queries/SessionQueries.java

@@ -166,18 +166,19 @@ public static SessionInfo getSessionInfo_Transaction(Start start, Connection con
 
     public static void updateSessionInfo_Transaction(Start start, Connection con, TenantIdentifier tenantIdentifier,
                                                      String sessionHandle,
-                                                     String refreshTokenHash2, long expiry)
+                                                     String refreshTokenHash2, long expiry, boolean useStaticKey)
             throws SQLException, StorageQueryException {
         String QUERY = "UPDATE " + getConfig(start).getSessionInfoTable()
-                + " SET refresh_token_hash_2 = ?, expires_at = ?"
+                + " SET refresh_token_hash_2 = ?, expires_at = ?, use_static_key = ?"
                 + " WHERE app_id = ? AND tenant_id = ? AND session_handle = ?";
 
         update(con, QUERY, pst -> {
             pst.setString(1, refreshTokenHash2);
             pst.setLong(2, expiry);
-            pst.setString(3, tenantIdentifier.getAppId());
-            pst.setString(4, tenantIdentifier.getTenantId());
-            pst.setString(5, sessionHandle);
+            pst.setBoolean(3, useStaticKey);
+            pst.setString(4, tenantIdentifier.getAppId());
+            pst.setString(5, tenantIdentifier.getTenantId());
+            pst.setString(6, sessionHandle);
         });
     }