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<title>[9774] sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php: 400 Bad Request: Document core.trac tickets for functions, only throw notices in production, and allow another few array-containing fields through (even though we don't use them).</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/9774">9774</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/9774","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>2020-04-24 03:18:50 +0000 (Fri, 24 Apr 2020)</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'>400 Bad Request: Document core.trac tickets for functions, only throw notices in production, and allow another few array-containing fields through (even though we don't use them).</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#sitestrunkwordpressorgpublic_htmlwpcontentmupluginspubwporgbadrequestphp">sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php</a></li>
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<h3>Diff</h3>
<a id="sitestrunkwordpressorgpublic_htmlwpcontentmupluginspubwporgbadrequestphp"></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/mu-plugins/pub/wporg-bad-request.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/mu-plugins/pub/wporg-bad-request.php 2020-04-23 06:46:54 UTC (rev 9773)
+++ sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php 2020-04-24 03:18:50 UTC (rev 9774)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -18,6 +18,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'login_init', function() {
</span><span class="cx" style="display: block; padding: 0 10px"> $expected_string_fields = [
</span><span class="cx" style="display: block; padding: 0 10px"> 'log', 'pwd', 'redirect_to', 'rememberme',
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ 'user_login', 'user_email',
</ins><span class="cx" style="display: block; padding: 0 10px"> '_wp_http_referer', '_wpnonce',
</span><span class="cx" style="display: block; padding: 0 10px"> 'locale' // WordPress.org login localisation.
</span><span class="cx" style="display: block; padding: 0 10px"> ];
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -32,11 +33,13 @@
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Detect invalid query parameters being passed in Core query fields.
</span><span class="cx" style="display: block; padding: 0 10px"> * Generally causes WP_Query to throw a PHP Warning.
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ *
+ * @see https://core.trac.wordpress.org/ticket/17737
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'send_headers', function( $wp ) {
</span><span class="cx" style="display: block; padding: 0 10px"> // Assumption: WP::$public_query_vars will only ever contain non-array query vars.
</span><span class="cx" style="display: block; padding: 0 10px"> // Assumption invalid. Some fields are valid.
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $array_fields = [ 'post_type' => true ];
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $array_fields = [ 'post_type' => true, 'cat' => true, 'author' => true ];
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( (new \WP)->public_query_vars as $field ) {
</span><span class="cx" style="display: block; padding: 0 10px"> if ( isset( $wp->query_vars[ $field ] ) && ! is_scalar( $wp->query_vars[ $field ] ) && ! isset( $array_fields[ $field ] ) ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -48,6 +51,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Detect invalid parameters being passed to REST API Endpoints.
</span><span class="cx" style="display: block; padding: 0 10px"> * Not all API endpoints sanitization callbacks check variable types.
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ *
+ * @see https://core.trac.wordpress.org/ticket/49991
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'rest_api_init', function( $wp_rest_server ) {
</span><span class="cx" style="display: block; padding: 0 10px"> global $wp;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -79,9 +84,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $header_set_for_403 = true;
</span><span class="cx" style="display: block; padding: 0 10px"> include WPORGPATH . '/403.php';
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- // Log it if possible.
- if ( function_exists( 'wporg_error_reporter' ) ) {
- wporg_error_reporter( E_USER_NOTICE, "400 Bad Request: $reference", __FILE__, __LINE__ );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Log it if possible, and not on a sandbox
+ if ( ! defined( 'WPORG_SANDBOXED' ) || ! WPORG_SANDBOXED ) {
+ if ( function_exists( 'wporg_error_reporter' ) ) {
+ wporg_error_reporter( E_USER_NOTICE, "400 Bad Request: $reference", __FILE__, __LINE__ );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> exit;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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