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<title>[37581] trunk/src/wp-admin/setup-config.php: Setup: Sanity check for invalid table prefixes.</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/37581">37581</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/37581","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>pento</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-05-27 01:53:09 +0000 (Fri, 27 May 2016)</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'>Setup: Sanity check for invalid table prefixes.
There are some table prefixes (for example, `7e1_`), which MySQL will try and parse as values when they're note quoted in backticks. Because not everything remembers to quote their table names, it's best if we just discourage their use during setup.
Fixes <a href="https://core.trac.wordpress.org/ticket/36422">#36422</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunksrcwpadminsetupconfigphp">trunk/src/wp-admin/setup-config.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpadminsetupconfigphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/setup-config.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/setup-config.php 2016-05-26 23:14:52 UTC (rev 37580)
+++ trunk/src/wp-admin/setup-config.php 2016-05-27 01:53:09 UTC (rev 37581)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -278,6 +278,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> if ( ! empty( $wpdb->error ) )
</span><span class="cx" style="display: block; padding: 0 10px"> wp_die( $wpdb->error->get_error_message() . $tryagain_link );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $wpdb->query( "SELECT $prefix" );
+ if ( ! $wpdb->last_error ) {
+ // MySQL was able to parse the prefix as a value, which we don't want. Bail.
+ wp_die( __( '<strong>ERROR</strong>: "Table Prefix" is invalid.' ) );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Generate keys and salts using secure CSPRNG; fallback to API if enabled; further fallback to original wp_generate_password().
</span><span class="cx" style="display: block; padding: 0 10px"> try {
</span><span class="cx" style="display: block; padding: 0 10px"> $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:/?|';
</span></span></pre>
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