Use KEYCLOAK_REMEMBER_ME as hint to prefill login form. Change lifespan of KEYCLOAK_IDENTITY to maxSsoSessionLifespan

forms/common-themes/src/main/resources/theme/login/base/login.ftl

@@ -40,7 +40,11 @@
                         <#if realm.rememberMe>
                             <div class="checkbox">
                                 <label>
-                                    <input id="rememberMe" name="rememberMe" type="checkbox" tabindex="3"> Remember Me
+                                    <#if login.rememberMe??>
+                                        <input id="rememberMe" name="rememberMe" type="checkbox" tabindex="3" checked> Remember Me
+                                    <#else>
+                                        <input id="rememberMe" name="rememberMe" type="checkbox" tabindex="3"> Remember Me
+                                    </#if>
                                 </label>
                             </div>
                         </#if>

forms/login-freemarker/src/main/java/org/keycloak/login/freemarker/model/LoginBean.java

@@ -34,11 +34,14 @@ public class LoginBean {
 
     private String passwordToken;
 
+    private String rememberMe;
+
     public LoginBean(MultivaluedMap<String, String> formData){
         if (formData != null) {
             username = formData.getFirst("username");
             password = formData.getFirst("password");
             passwordToken = formData.getFirst("password-token");
+            rememberMe = formData.getFirst("rememberMe");
         }
     }
 
@@ -53,4 +56,8 @@ public class LoginBean {
     public String getPasswordToken() {
         return passwordToken;
     }
+
+    public String getRememberMe() {
+        return rememberMe;
+    }
 }