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<title>[53917] trunk/src/wp-includes/PHPMailer: External Libraries: Upgrade PHPMailer to version 6.6.4.</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/53917">53917</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/53917","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>2022-08-22 12:24:30 +0000 (Mon, 22 Aug 2022)</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'>External Libraries: Upgrade PHPMailer to version 6.6.4.
This is a maintenance release with minor changes:
* Add `text/csv` MIME type.
* Fix DKIM when sending to anonymous group via `mail()`.
Release notes:
https://github.com/PHPMailer/PHPMailer/releases/tag/v6.6.4
For a full list of changes in this update, see the PHPMailer GitHub:
https://github.com/PHPMailer/PHPMailer/compare/v6.6.3...v6.6.4
Follow-up to <a href="https://core.trac.wordpress.org/changeset/50628">[50628]</a>, <a href="https://core.trac.wordpress.org/changeset/50799">[50799]</a>, <a href="https://core.trac.wordpress.org/changeset/51169">[51169]</a>, <a href="https://core.trac.wordpress.org/changeset/51634">[51634]</a>, <a href="https://core.trac.wordpress.org/changeset/51635">[51635]</a>, <a href="https://core.trac.wordpress.org/changeset/52252">[52252]</a>, <a href="https://core.trac.wordpress.org/changeset/52749">[52749]</a>, <a href="https://core.trac.wordpress.org/changeset/52811">[52811]</a>, <a href="https://core.trac.wordpress.org/changeset/53500">[53500]</a>, <a href="https://core.trac.wordpress.org/changeset/53535">[53535]</a>.
Props jrf, Synchro.
Fixes <a href="https://core.trac.wordpress.org/ticket/56016">#56016</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesPHPMailerPHPMailerphp">trunk/src/wp-includes/PHPMailer/PHPMailer.php</a></li>
<li><a href="#trunksrcwpincludesPHPMailerSMTPphp">trunk/src/wp-includes/PHPMailer/SMTP.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesPHPMailerPHPMailerphp"></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/PHPMailer/PHPMailer.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/PHPMailer/PHPMailer.php 2022-08-21 16:55:18 UTC (rev 53916)
+++ trunk/src/wp-includes/PHPMailer/PHPMailer.php 2022-08-22 12:24:30 UTC (rev 53917)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -350,8 +350,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> public $Password = '';
</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">- * SMTP auth type.
- * Options are CRAM-MD5, LOGIN, PLAIN, XOAUTH2, attempted in that order if not specified.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * SMTP authentication type. Options are CRAM-MD5, LOGIN, PLAIN, XOAUTH2.
+ * If not specified, the first one from that list that the server supports will be selected.
</ins><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @var string
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -750,7 +750,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @var string
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- const VERSION = '6.6.3';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ const VERSION = '6.6.4';
</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"> * Error severity: message only, continue processing.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1096,7 +1096,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return false;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ($name !== null) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ($name !== null && is_string($name)) {
</ins><span class="cx" style="display: block; padding: 0 10px"> $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
</span><span class="cx" style="display: block; padding: 0 10px"> } else {
</span><span class="cx" style="display: block; padding: 0 10px"> $name = '';
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1288,7 +1288,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public function setFrom($address, $name = '', $auto = true)
</span><span class="cx" style="display: block; padding: 0 10px"> {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $address = trim($address);
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $address = trim((string)$address);
</ins><span class="cx" style="display: block; padding: 0 10px"> $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
</span><span class="cx" style="display: block; padding: 0 10px"> //Don't validate now addresses with IDN. Will be done in send().
</span><span class="cx" style="display: block; padding: 0 10px"> $pos = strrpos($address, '@');
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1893,8 +1893,15 @@
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ($this->to as $toaddr) {
</span><span class="cx" style="display: block; padding: 0 10px"> $toArr[] = $this->addrFormat($toaddr);
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $to = implode(', ', $toArr);
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $to = trim(implode(', ', $toArr));
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ //If there are no To-addresses (e.g. when sending only to BCC-addresses)
+ //the following should be added to get a correct DKIM-signature.
+ //Compare with $this->preSend()
+ if ($to === '') {
+ $to = 'undisclosed-recipients:;';
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $params = null;
</span><span class="cx" style="display: block; padding: 0 10px"> //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
</span><span class="cx" style="display: block; padding: 0 10px"> //A space after `-f` is optional, but there is a long history of its presence
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4472,6 +4479,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 'ics' => 'text/calendar',
</span><span class="cx" style="display: block; padding: 0 10px"> 'xml' => 'text/xml',
</span><span class="cx" style="display: block; padding: 0 10px"> 'xsl' => 'text/xml',
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ 'csv' => 'text/csv',
</ins><span class="cx" style="display: block; padding: 0 10px"> 'wmv' => 'video/x-ms-wmv',
</span><span class="cx" style="display: block; padding: 0 10px"> 'mpeg' => 'video/mpeg',
</span><span class="cx" style="display: block; padding: 0 10px"> 'mpe' => 'video/mpeg',
</span></span></pre></div>
<a id="trunksrcwpincludesPHPMailerSMTPphp"></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/PHPMailer/SMTP.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/PHPMailer/SMTP.php 2022-08-21 16:55:18 UTC (rev 53916)
+++ trunk/src/wp-includes/PHPMailer/SMTP.php 2022-08-22 12:24:30 UTC (rev 53917)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -35,7 +35,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @var string
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- const VERSION = '6.6.3';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ const VERSION = '6.6.4';
</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"> * SMTP line break constant.
</span></span></pre>
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