add ability to remember logged in user after browser closes

boot.php

@@ -947,6 +947,7 @@ if(! function_exists('login')) {
 	
 			'$lname'	 	=> array('username', t('Nickname or Email address: ') , '', ''),
 			'$lpassword' 	=> array('password', t('Password: '), '', ''),
+			'$lremember'	=> array('remember', t('Remember me'), 0, ''),
 	
 			'$openid'		=> !$noid,
 			'$lopenid'      => array('openid_url', t('Or login using OpenID: '),'',''),

include/auth.php

@@ -162,6 +162,33 @@ else {
 			goaway(z_root());
   		}
 
+		// If the user specified to remember the authentication, then change the cookie
+		// to expire after one year (the default is when the browser is closed).
+		// If the user did not specify to remember, change the cookie to expire when the
+		// browser is closed. The reason this is necessary is because if the user
+		// specifies to remember, then logs out and logs back in without specifying to
+		// remember, the old "remember" cookie may remain and prevent the session from
+		// expiring when the browser is closed.
+		//
+		// It seems like I should be able to test for the old cookie, but for some reason when
+		// I read the lifetime value from session_get_cookie_params(), I always get '0'
+		// (i.e. expire when the browser is closed), even when there's a time expiration
+		// on the cookie
+		if($_POST['remember']) {
+			$old_sid = session_id();
+			session_set_cookie_params('31449600'); // one year
+			session_regenerate_id(false);
+
+			q("UPDATE session SET sid = '%s' WHERE sid = '%s'", dbesc(session_id()), dbesc($old_sid));
+		}
+		else {
+			$old_sid = session_id();
+			session_set_cookie_params('0');
+			session_regenerate_id(false);
+
+			q("UPDATE session SET sid = '%s' WHERE sid = '%s'", dbesc(session_id()), dbesc($old_sid));
+		}
+
 		// if we haven't failed up this point, log them in.
 
 		authenticate_success($record, true, true);

view/theme/frost-mobile/login-style.css

@@ -87,6 +87,10 @@ div.section-wrapper {
 	margin-left: 30px;
 }
 
+#div_id_remember {
+	margin-top: 10px;
+}
+
 #login_openid {
 	margin-top: 50px;
 }

view/theme/frost-mobile/login.tpl

@@ -25,6 +25,8 @@
 		<input type="submit" name="submit" id="login-submit-button" value="$login" />
 	</div>
 
+	{{ inc field_checkbox.tpl with $field=$lremember }}{{ endinc }}
+
 	<br /><br />
 	<div class="login-extra-links">
 		{{ if $register }}<a href="register" title="$register.title" id="register-link">$register.desc</a>{{ endif }}

view/theme/frost/login-style.css

@@ -87,6 +87,10 @@ div.section-wrapper {
 	margin-left: 140px;
 }
 
+#div_id_remember {
+	margin-top: 10px;
+}
+
 /*.openid input {*/
 #id_openid_url, .openid input {
 	background: url(login-bg.gif) no-repeat;

view/theme/frost/login.tpl

@@ -25,7 +25,9 @@
 		<input type="submit" name="submit" id="login-submit-button" value="$login" />
 	</div>
 
-	<br /><br /><br /><br />
+	{{ inc field_checkbox.tpl with $field=$lremember }}{{ endinc }}
+
+	<br /><br /><br />
 	<div class="login-extra-links">
 		{{ if $register }}<a href="register" title="$register.title" id="register-link">$register.desc</a>{{ endif }}
         <a href="lostpass" title="$lostpass" id="lost-password-link" >$lostlink</a>