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<title>[48645] trunk: Mail: PHPMailer swap to use is_email for the default validator.</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/48645">48645</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/48645","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>whyisjake</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2020-07-27 20:17:36 +0000 (Mon, 27 Jul 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'>Mail: PHPMailer swap to use is_email for the default validator.
Prior to the PHPMailer update in 5.5, old version of the PHPMailer was setting the validator to 'auto' resulting in a sophisticated logic for determining what email address validation should be used. But the new version defaults to 'php', possibly leading to rejection of email addresses which were fine prior to the upgrade. Let's use the WordPress core function `is_email()` so that it can be fully pluggable.
Fixes <a href="https://core.trac.wordpress.org/ticket/50720">#50720</a>.
Props david.binda, ayeshrajans, Synchro, SergeyBiryukov, whyisjake.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludespluggablephp">trunk/src/wp-includes/pluggable.php</a></li>
<li><a href="#trunktestsphpunitincludesmockmailerphp">trunk/tests/phpunit/includes/mock-mailer.php</a></li>
<li><a href="#trunktestsphpunittestsmailphp">trunk/tests/phpunit/tests/mail.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludespluggablephp"></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/pluggable.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/pluggable.php 2020-07-27 20:08:53 UTC (rev 48644)
+++ trunk/src/wp-includes/pluggable.php 2020-07-27 20:17:36 UTC (rev 48645)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -216,6 +216,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> require_once ABSPATH . WPINC . '/PHPMailer/SMTP.php';
</span><span class="cx" style="display: block; padding: 0 10px"> require_once ABSPATH . WPINC . '/PHPMailer/Exception.php';
</span><span class="cx" style="display: block; padding: 0 10px"> $phpmailer = new PHPMailer\PHPMailer\PHPMailer( true );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ $phpmailer::$validator = static function ( $email ) {
+ return (bool) is_email( $email );
+ };
</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"> // Headers.
</span></span></pre></div>
<a id="trunktestsphpunitincludesmockmailerphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/includes/mock-mailer.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/includes/mock-mailer.php 2020-07-27 20:08:53 UTC (rev 48644)
+++ trunk/tests/phpunit/includes/mock-mailer.php 2020-07-27 20:17:36 UTC (rev 48645)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -96,7 +96,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> function reset_phpmailer_instance() {
</span><span class="cx" style="display: block; padding: 0 10px"> $mailer = tests_retrieve_phpmailer_instance();
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $mailer ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $GLOBALS['phpmailer'] = new MockPHPMailer( true );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $mailer = new MockPHPMailer( true );
+ $mailer::$validator = static function ( $email ) {
+ return (bool) is_email( $email );
+ };
+
+ $GLOBALS['phpmailer'] = $mailer;
</ins><span class="cx" style="display: block; padding: 0 10px"> return true;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunktestsphpunittestsmailphp"></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/mail.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/mail.php 2020-07-27 20:08:53 UTC (rev 48644)
+++ trunk/tests/phpunit/tests/mail.php 2020-07-27 20:17:36 UTC (rev 48645)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -407,4 +407,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( 'wp_mail_failed', $call_args[0]->get_error_code() );
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( $expected_error_data, $call_args[0]->get_error_data() );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ /**
+ * @ticket 50720
+ */
+ function test_phpmailer_validator() {
+ $phpmailer = $GLOBALS['phpmailer'];
+ $this->assertTrue( $phpmailer->validateAddress( 'foo@192.168.1.1' ), 'Assert PHPMailer accepts IP address email addresses' );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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