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<title>[11045] sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-login/functions.php: Login: Add an additional layer of redirect location rememberance to the login site.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="http://meta.trac.wordpress.org/changeset/11045">11045</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"http://meta.trac.wordpress.org/changeset/11045","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>dd32</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-06-21 04:46:29 +0000 (Mon, 21 Jun 2021)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Login: Add an additional layer of redirect location rememberance to the login site.

This should help the login site recall the redirect_to location even when Jetpack's brute-force protections kick in.

See <a href="http://meta.trac.wordpress.org/ticket/5754">#5754</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#sitestrunkwordpressorgpublic_htmlwpcontentthemespubwporgloginfunctionsphp">sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-login/functions.php</a></li>
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<h3>Diff</h3>
<a id="sitestrunkwordpressorgpublic_htmlwpcontentthemespubwporgloginfunctionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-login/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-login/functions.php     2021-06-21 04:40:53 UTC (rev 11044)
+++ sites/trunk/wordpress.org/public_html/wp-content/themes/pub/wporg-login/functions.php       2021-06-21 04:46:29 UTC (rev 11045)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -517,4 +517,53 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        return esc_url( $url );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-}
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+}
+
+/**
+ * Remember the source of where the user came from,
+ * to allow redirects to be kept even when the redirect is lost.
+ */
+function wporg_remember_where_user_came_from() {
+       if ( ! empty( $_COOKIE['wporg_came_from'] ) ) {
+               return;
+       }
+
+       $came_from = $_REQUEST['redirect_to'] ?? ( $_SERVER['HTTP_REFERER'] ?? '' );
+       if ( ! $came_from ) {
+               return;
+       }
+
+       setcookie( 'wporg_came_from', $came_from, time() + 10*MINUTE_IN_SECONDS, '/', 'login.wordpress.org', true, true );
+}
+add_action( 'init', 'wporg_remember_where_user_came_from' );
+
+/**
+ * Override the ultimate login location with the cookie value, if the redirect
+ * is going to land the user on somewhere that they did not actually come from.
+ */
+function wporg_remember_where_user_came_from_redirect( $redirect, $requested_redirect_to, $user ) {
+       if ( empty( $_COOKIE['wporg_came_from'] ) || is_wp_error( $user ) ) {
+               return $redirect;
+       }
+
+       // If the redirect is to a url that doesn't seem right, override it.
+       $redirect_host = parse_url( $redirect, PHP_URL_HOST );
+       $proper_host   = parse_url( $_COOKIE['wporg_came_from'], PHP_URL_HOST );
+       if (
+               $redirect_host != $proper_host &&
+               in_array(
+                       $redirect_host,
+                       [
+                               'profiles.wordpress.org', // Default redirect for low-priv users.
+                               'login.wordpress.org',    // Default redirect for priv'd users.
+                       ]
+               )
+       ) {
+               if ( wp_validate_redirect( $_COOKIE['wporg_came_from'] ) ) {
+                       $redirect = $_COOKIE['wporg_came_from'];
+               }
+       }
+
+       return $redirect;
+}
+add_filter( 'login_redirect', 'wporg_remember_where_user_came_from_redirect', 100, 3 );
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span></span></pre>
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