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<title>[10578] sites/trunk/wordpress.org/public_html/wp-content/plugins/support-forums/inc/class-hooks.php: Support Forums: When a user is blocked on the forums, break their password hash to prevent logins and terminate all current sessions (WordPress & Trac).</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/10578">10578</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/10578","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>2021-01-14 05:44:38 +0000 (Thu, 14 Jan 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'>Support Forums: When a user is blocked on the forums, break their password hash to prevent logins and terminate all current sessions (WordPress & Trac).
See <a href="http://meta.trac.wordpress.org/ticket/4691">#4691</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#sitestrunkwordpressorgpublic_htmlwpcontentpluginssupportforumsincclasshooksphp">sites/trunk/wordpress.org/public_html/wp-content/plugins/support-forums/inc/class-hooks.php</a></li>
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<h3>Diff</h3>
<a id="sitestrunkwordpressorgpublic_htmlwpcontentpluginssupportforumsincclasshooksphp"></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/plugins/support-forums/inc/class-hooks.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/plugins/support-forums/inc/class-hooks.php 2021-01-14 04:49:17 UTC (rev 10577)
+++ sites/trunk/wordpress.org/public_html/wp-content/plugins/support-forums/inc/class-hooks.php 2021-01-14 05:44:38 UTC (rev 10578)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -127,6 +127,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Add a no-reply-to-email suggestion to topic subscription emails
</span><span class="cx" style="display: block; padding: 0 10px"> add_filter( 'bbp_subscription_mail_message', array( $this, 'bbp_subscription_mail_message'), 5, 3 );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ // Break users sessions / passwords when they get blocked.
+ add_action( 'bbp_set_user_role', array( $this, 'user_blocked_password_handler' ), 10, 3 );
</ins><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"> /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1278,4 +1281,60 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return $message;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ /**
+ * Catch a user being blocked / unblocked and set their password appropriately.
+ */
+ public function user_blocked_password_handler( $new_role, $user_id, \WP_User $user ) {
+ global $wpdb;
+
+ // ~~~ is a reset password on WordPress.org. Let's ignore those.
+ if ( '~~~' === $user->user_pass ) {
+ return;
+ }
+
+ // bbPress 1.x used `{$user_pass}---{$secret}` while we're using the reverse here.
+ // This is to ensure that anything that uses the password hash as part of a cookie no longer validates.
+ $blocked_prefix = 'BLOCKED' . substr( wp_hash( 'bb_break_password' ), 0, 13 ) . '---';
+ $blocked_role = bbp_get_blocked_role();
+ $password_broken = ( 0 === strpos( $user->user_pass, $blocked_prefix ) );
+
+ if ( $blocked_role === $new_role && ! $password_broken ) {
+ // User has been blocked, break their password and sessions.
+ // WordPress doesn't have a way to edit a user password without re-hashing it.
+ $wpdb->update(
+ $wpdb->users,
+ array(
+ 'user_pass' => $blocked_prefix . $user->user_pass,
+ ),
+ array(
+ 'ID' => $user->ID
+ )
+ );
+
+ clean_user_cache( $user );
+
+ // Destroy all of their WordPress sessions.
+ $manager = \WP_Session_Tokens::get_instance( $user->ID );
+ $manager->destroy_all();
+
+ } else if (
+ $password_broken &&
+ ! $user->has_role( $blocked_role )
+ ) {
+ // User was blocked (broken password) but no longer is.
+ // WordPress doesn't have a way to edit a user password without re-hashing it.
+ $wpdb->update(
+ $wpdb->users,
+ array(
+ 'user_pass' => substr( $user->user_pass, strlen( $blocked_prefix ) ),
+ ),
+ array(
+ 'ID' => $user->ID
+ )
+ );
+
+ clean_user_cache( $user );
+ }
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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