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<title>[57232] trunk: Canonical: Check if the `author` parameter is a string in `redirect_canonical()`.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/57232">57232</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/57232","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-12-29 13:52:57 +0000 (Fri, 29 Dec 2023)</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'>Canonical: Check if the `author` parameter is a string in `redirect_canonical()`.
This avoids a PHP warning or error when viewing an author on the front end, while an array is passed as `$_GET['author']`.
Follow-up to <a href="https://core.trac.wordpress.org/changeset/12034">[12034]</a>, <a href="https://core.trac.wordpress.org/changeset/12040">[12040]</a>, <a href="https://core.trac.wordpress.org/changeset/12202">[12202]</a>.
Props david.binda, antonvlasenko, azaozz, SergeyBiryukov.
Fixes <a href="https://core.trac.wordpress.org/ticket/60059">#60059</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludescanonicalphp">trunk/src/wp-includes/canonical.php</a></li>
<li><a href="#trunktestsphpunittestscanonicalphp">trunk/tests/phpunit/tests/canonical.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludescanonicalphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/canonical.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/canonical.php 2023-12-28 15:25:26 UTC (rev 57231)
+++ trunk/src/wp-includes/canonical.php 2023-12-29 13:52:57 UTC (rev 57232)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -316,7 +316,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $redirect['query'] = remove_query_arg( 'year', $redirect['query'] );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- } elseif ( is_author() && ! empty( $_GET['author'] ) && preg_match( '|^[0-9]+$|', $_GET['author'] ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ } elseif ( is_author() && ! empty( $_GET['author'] )
+ && is_string( $_GET['author'] ) && preg_match( '|^[0-9]+$|', $_GET['author'] )
+ ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> $author = get_userdata( get_query_var( 'author' ) );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( false !== $author
</span></span></pre></div>
<a id="trunktestsphpunittestscanonicalphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/canonical.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/canonical.php 2023-12-28 15:25:26 UTC (rev 57231)
+++ trunk/tests/phpunit/tests/canonical.php 2023-12-29 13:52:57 UTC (rev 57232)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -206,6 +206,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> array( '/?author=%d', '/author/canonical-author/' ),
</span><span class="cx" style="display: block; padding: 0 10px"> // array( '/?author=%d&year=2008', '/2008/?author=3'),
</span><span class="cx" style="display: block; padding: 0 10px"> // array( '/author/canonical-author/?year=2008', '/2008/?author=3'), // Either or, see previous testcase.
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ array( '/author/canonical-author/?author[1]=hello', '/author/canonical-author/?author[1]=hello', 60059 ),
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Feeds.
</span><span class="cx" style="display: block; padding: 0 10px"> array( '/?feed=atom', '/feed/atom/' ),
</span></span></pre>
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