Update phpmailer/phpmailer requirement from 6.9.1 to 6.9.2 in /lib (#6968)

* Update phpmailer/phpmailer requirement from 6.9.1 to 6.9.2 in /lib

Updates the requirements on [phpmailer/phpmailer](https://github.com/PHPMailer/PHPMailer) to permit the latest version.
- [Release notes](https://github.com/PHPMailer/PHPMailer/releases)
- [Changelog](https://github.com/PHPMailer/PHPMailer/blob/master/changelog.md)
- [Commits](https://github.com/PHPMailer/PHPMailer/compare/v6.9.1...v6.9.2)

---
updated-dependencies:
- dependency-name: phpmailer/phpmailer
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update library code

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

6 files changed, 59 insertions, 51 deletions

diff --git a/lib/composer.json b/lib/composer.json
index 92ae71805..ef96db612 100644
--- a/lib/composer.json
+++ b/lib/composer.json
@@ -17,7 +17,7 @@
     "require": {
         "marienfressinaud/lib_opml": "0.5.1",
         "phpgt/cssxpath": "dev-master#45f3ac151fc21d459e2515c3aff97cd4bf877bf8",
-        "phpmailer/phpmailer": "6.9.1",
+        "phpmailer/phpmailer": "6.9.2",
         "simplepie/simplepie": "dev-freshrss#88f13f2df1ba17a7432a624d38884b1bd8f60e43"
     },
     "config": {
diff --git a/lib/phpmailer/phpmailer/README.md b/lib/phpmailer/phpmailer/README.md
index e3e4ecff3..8c2ec4543 100644
--- a/lib/phpmailer/phpmailer/README.md
+++ b/lib/phpmailer/phpmailer/README.md
@@ -41,13 +41,13 @@ you should look at before rolling your own. Try [SwiftMailer](https://swiftmaile
 , [Laminas/Mail](https://docs.laminas.dev/laminas-mail/), [ZetaComponents](https://github.com/zetacomponents/Mail), etc.
 
 ## License
-This software is distributed under the [LGPL 2.1](http://www.gnu.org/licenses/lgpl-2.1.html) license, along with the [GPL Cooperation Commitment](https://gplcc.github.io/gplcc/). Please read [LICENSE](https://github.com/PHPMailer/PHPMailer/blob/master/LICENSE) for information on the software availability and distribution.
+This software is distributed under the [LGPL 2.1](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html) license, along with the [GPL Cooperation Commitment](https://gplcc.github.io/gplcc/). Please read [LICENSE](https://github.com/PHPMailer/PHPMailer/blob/master/LICENSE) for information on the software availability and distribution.
 
 ## Installation & loading
 PHPMailer is available on [Packagist](https://packagist.org/packages/phpmailer/phpmailer) (using semantic versioning), and installation via [Composer](https://getcomposer.org) is the recommended way to install PHPMailer. Just add this line to your `composer.json` file:
 
 ```json
-"phpmailer/phpmailer": "^6.9.1"
+"phpmailer/phpmailer": "^6.9.2"
 ```
 
 or run
@@ -144,7 +144,7 @@ If you are re-using the instance (e.g. when sending to a mailing list), you may
 That's it. You should now be ready to use PHPMailer!
 
 ## Localization
-PHPMailer defaults to English, but in the [language](https://github.com/PHPMailer/PHPMailer/tree/master/language/) folder, you'll find many translations for PHPMailer error messages that you may encounter. Their filenames contain [ISO 639-1](http://en.wikipedia.org/wiki/ISO_639-1) language code for the translations, for example `fr` for French. To specify a language, you need to tell PHPMailer which one to use, like this:
+PHPMailer defaults to English, but in the [language](https://github.com/PHPMailer/PHPMailer/tree/master/language/) folder, you'll find many translations for PHPMailer error messages that you may encounter. Their filenames contain [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) language code for the translations, for example `fr` for French. To specify a language, you need to tell PHPMailer which one to use, like this:
 
 ```php
 //To load the French version
@@ -162,9 +162,9 @@ To reduce PHPMailer's deployed code footprint, examples are not included if you
 
 Complete generated API documentation is [available online](https://phpmailer.github.io/PHPMailer/).
 
-You can generate complete API-level documentation by running `phpdoc` in the top-level folder, and documentation will appear in the `docs` folder, though you'll need to have [PHPDocumentor](http://www.phpdoc.org) installed. You may find [the unit tests](https://github.com/PHPMailer/PHPMailer/blob/master/test/PHPMailerTest.php) a good reference for how to do various operations such as encryption.
+You can generate complete API-level documentation by running `phpdoc` in the top-level folder, and documentation will appear in the `docs` folder, though you'll need to have [PHPDocumentor](https://www.phpdoc.org) installed. You may find [the unit tests](https://github.com/PHPMailer/PHPMailer/blob/master/test/PHPMailerTest.php) a good reference for how to do various operations such as encryption.
 
-If the documentation doesn't cover what you need, search the [many questions on Stack Overflow](http://stackoverflow.com/questions/tagged/phpmailer), and before you ask a question about "SMTP Error: Could not connect to SMTP host.", [read the troubleshooting guide](https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting).
+If the documentation doesn't cover what you need, search the [many questions on Stack Overflow](https://stackoverflow.com/questions/tagged/phpmailer), and before you ask a question about "SMTP Error: Could not connect to SMTP host.", [read the troubleshooting guide](https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting).
 
 ## Tests
 [PHPMailer tests](https://github.com/PHPMailer/PHPMailer/tree/master/test/) use PHPUnit 9, with [a polyfill](https://github.com/Yoast/PHPUnit-Polyfills) to let 9-style tests run on older PHPUnit and PHP versions.
@@ -213,7 +213,7 @@ use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-phpmailer-php
 See [changelog](changelog.md).
 
 ## History
-- PHPMailer was originally written in 2001 by Brent R. Matzelle as a [SourceForge project](http://sourceforge.net/projects/phpmailer/).
+- PHPMailer was originally written in 2001 by Brent R. Matzelle as a [SourceForge project](https://sourceforge.net/projects/phpmailer/).
 - [Marcus Bointon](https://github.com/Synchro) (`coolbru` on SF) and Andy Prevost (`codeworxtech`) took over the project in 2004.
 - Became an Apache incubator project on Google Code in 2010, managed by Jim Jagielski.
 - Marcus created [his fork on GitHub](https://github.com/Synchro/PHPMailer) in 2008.
diff --git a/lib/phpmailer/phpmailer/VERSION b/lib/phpmailer/phpmailer/VERSION
index dc3829f5e..6b9255cf0 100644
--- a/lib/phpmailer/phpmailer/VERSION
+++ b/lib/phpmailer/phpmailer/VERSION
@@ -1 +1 @@
-6.9.1
+6.9.2
diff --git a/lib/phpmailer/phpmailer/src/Exception.php b/lib/phpmailer/phpmailer/src/Exception.php
index 52eaf9515..09c1a2cfe 100644
--- a/lib/phpmailer/phpmailer/src/Exception.php
+++ b/lib/phpmailer/phpmailer/src/Exception.php
@@ -13,7 +13,7 @@
  * @copyright 2012 - 2020 Marcus Bointon
  * @copyright 2010 - 2012 Jim Jagielski
  * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
  * @note      This program is distributed in the hope that it will be useful - WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.
diff --git a/lib/phpmailer/phpmailer/src/PHPMailer.php b/lib/phpmailer/phpmailer/src/PHPMailer.php
index ba4bcd472..12da10354 100644
--- a/lib/phpmailer/phpmailer/src/PHPMailer.php
+++ b/lib/phpmailer/phpmailer/src/PHPMailer.php
@@ -13,7 +13,7 @@
  * @copyright 2012 - 2020 Marcus Bointon
  * @copyright 2010 - 2012 Jim Jagielski
  * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
  * @note      This program is distributed in the hope that it will be useful - WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.
@@ -152,8 +152,7 @@ class PHPMailer
      * Only supported in simple alt or alt_inline message types
      * To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator.
      *
-     * @see http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
-     * @see http://kigkonsult.se/iCalcreator/
+     * @see https://kigkonsult.se/iCalcreator/
      *
      * @var string
      */
@@ -358,7 +357,7 @@ class PHPMailer
     public $AuthType = '';
 
     /**
-     * SMTP SMTPXClient command attibutes
+     * SMTP SMTPXClient command attributes
      *
      * @var array
      */
@@ -468,7 +467,7 @@ class PHPMailer
      * Only applicable when sending via SMTP.
      *
      * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path
-     * @see http://www.postfix.org/VERP_README.html Postfix VERP info
+     * @see https://www.postfix.org/VERP_README.html Postfix VERP info
      *
      * @var bool
      */
@@ -551,10 +550,10 @@ class PHPMailer
      * The function that handles the result of the send email action.
      * It is called out by send() for each email sent.
      *
-     * Value can be any php callable: http://www.php.net/is_callable
+     * Value can be any php callable: https://www.php.net/is_callable
      *
      * Parameters:
-     *   bool $result        result of the send action
+     *   bool $result           result of the send action
      *   array   $to            email addresses of the recipients
      *   array   $cc            cc email addresses
      *   array   $bcc           bcc email addresses
@@ -757,7 +756,7 @@ class PHPMailer
      *
      * @var string
      */
-    const VERSION = '6.9.1';
+    const VERSION = '6.9.2';
 
     /**
      * Error severity: message only, continue processing.
@@ -903,7 +902,7 @@ class PHPMailer
         }
         //Is this a PSR-3 logger?
         if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) {
-            $this->Debugoutput->debug($str);
+            $this->Debugoutput->debug(rtrim($str, "\r\n"));
 
             return;
         }
@@ -1072,7 +1071,7 @@ class PHPMailer
      * be modified after calling this function), addition of such addresses is delayed until send().
      * Addresses that have been added already return false, but do not throw exceptions.
      *
-     * @param string $kind    One of 'to', 'cc', 'bcc', or 'ReplyTo'
+     * @param string $kind    One of 'to', 'cc', 'bcc', or 'Reply-To'
      * @param string $address The email address
      * @param string $name    An optional username associated with the address
      *
@@ -1212,7 +1211,7 @@ class PHPMailer
      * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available.
      * Note that quotes in the name part are removed.
      *
-     * @see http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
+     * @see https://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
      *
      * @param string $addrstr The address list string
      * @param bool   $useimap Whether to use the IMAP extension to parse the list
@@ -1407,7 +1406,6 @@ class PHPMailer
                  *  * IPv6 literals: 'first.last@[IPv6:a1::]'
                  * Not all of these will necessarily work for sending!
                  *
-                 * @see       http://squiloople.com/2009/12/20/email-address-validation/
                  * @copyright 2009-2010 Michael Rushton
                  * Feel free to use and redistribute this code. But please keep this copyright notice.
                  */
@@ -1734,9 +1732,8 @@ class PHPMailer
         //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
         //A space after `-f` is optional, but there is a long history of its presence
         //causing problems, so we don't use one
-        //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
-        //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html
-        //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html
+        //Exim docs: https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
+        //Sendmail docs: https://www.sendmail.org/~ca/email/man/sendmail.html
         //Example problem: https://www.drupal.org/node/1057954
 
         //PHP 5.6 workaround
@@ -1901,7 +1898,7 @@ class PHPMailer
     /**
      * Send mail using the PHP mail() function.
      *
-     * @see http://www.php.net/manual/en/book.mail.php
+     * @see https://www.php.net/manual/en/book.mail.php
      *
      * @param string $header The message headers
      * @param string $body   The message body
@@ -1931,9 +1928,8 @@ class PHPMailer
         //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
         //A space after `-f` is optional, but there is a long history of its presence
         //causing problems, so we don't use one
-        //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
-        //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html
-        //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html
+        //Exim docs: https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
+        //Sendmail docs: https://www.sendmail.org/~ca/email/man/sendmail.html
         //Example problem: https://www.drupal.org/node/1057954
         //CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.
 
@@ -3634,7 +3630,7 @@ class PHPMailer
      * without breaking lines within a character.
      * Adapted from a function by paravoid.
      *
-     * @see http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
+     * @see https://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
      *
      * @param string $str       multi-byte text to wrap encode
      * @param string $linebreak string to use as linefeed/end-of-line
@@ -3690,7 +3686,7 @@ class PHPMailer
     /**
      * Encode a string using Q encoding.
      *
-     * @see http://tools.ietf.org/html/rfc2047#section-4.2
+     * @see https://www.rfc-editor.org/rfc/rfc2047#section-4.2
      *
      * @param string $str      the text to encode
      * @param string $position Where the text is going to be used, see the RFC for what that means
@@ -4228,7 +4224,7 @@ class PHPMailer
             $result = $_SERVER['SERVER_NAME'];
         } elseif (function_exists('gethostname') && gethostname() !== false) {
             $result = gethostname();
-        } elseif (php_uname('n') !== false) {
+        } elseif (php_uname('n') !== '') {
             $result = php_uname('n');
         }
         if (!static::isValidHost($result)) {
@@ -4253,7 +4249,7 @@ class PHPMailer
             empty($host)
             || !is_string($host)
             || strlen($host) > 256
-            || !preg_match('/^([a-zA-Z\d.-]*|\[[a-fA-F\d:]+\])$/', $host)
+            || !preg_match('/^([a-z\d.-]*|\[[a-f\d:]+\])$/i', $host)
         ) {
             return false;
         }
@@ -4267,8 +4263,8 @@ class PHPMailer
             //Is it a valid IPv4 address?
             return filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false;
         }
-        //Is it a syntactically valid hostname (when embeded in a URL)?
-        return filter_var('http://' . $host, FILTER_VALIDATE_URL) !== false;
+        //Is it a syntactically valid hostname (when embedded in a URL)?
+        return filter_var('https://' . $host, FILTER_VALIDATE_URL) !== false;
     }
 
     /**
@@ -4679,7 +4675,7 @@ class PHPMailer
      * Multi-byte-safe pathinfo replacement.
      * Drop-in replacement for pathinfo(), but multibyte- and cross-platform-safe.
      *
-     * @see http://www.php.net/manual/en/function.pathinfo.php#107461
+     * @see https://www.php.net/manual/en/function.pathinfo.php#107461
      *
      * @param string     $path    A filename or path, does not need to exist as a file
      * @param int|string $options Either a PATHINFO_* constant,
diff --git a/lib/phpmailer/phpmailer/src/SMTP.php b/lib/phpmailer/phpmailer/src/SMTP.php
index 1b5b00771..5b238b527 100644
--- a/lib/phpmailer/phpmailer/src/SMTP.php
+++ b/lib/phpmailer/phpmailer/src/SMTP.php
@@ -13,7 +13,7 @@
  * @copyright 2012 - 2020 Marcus Bointon
  * @copyright 2010 - 2012 Jim Jagielski
  * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
  * @note      This program is distributed in the hope that it will be useful - WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.
@@ -35,7 +35,7 @@ class SMTP
      *
      * @var string
      */
-    const VERSION = '6.9.1';
+    const VERSION = '6.9.2';
 
     /**
      * SMTP line break constant.
@@ -152,8 +152,8 @@ class SMTP
     /**
      * Whether to use VERP.
      *
-     * @see http://en.wikipedia.org/wiki/Variable_envelope_return_path
-     * @see http://www.postfix.org/VERP_README.html Info on VERP
+     * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path
+     * @see https://www.postfix.org/VERP_README.html Info on VERP
      *
      * @var bool
      */
@@ -164,7 +164,7 @@ class SMTP
      * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2.
      * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure.
      *
-     * @see http://tools.ietf.org/html/rfc2821#section-4.5.3.2
+     * @see https://www.rfc-editor.org/rfc/rfc2821#section-4.5.3.2
      *
      * @var int
      */
@@ -187,12 +187,12 @@ class SMTP
      */
     protected $smtp_transaction_id_patterns = [
         'exim' => '/[\d]{3} OK id=(.*)/',
-        'sendmail' => '/[\d]{3} 2.0.0 (.*) Message/',
-        'postfix' => '/[\d]{3} 2.0.0 Ok: queued as (.*)/',
-        'Microsoft_ESMTP' => '/[0-9]{3} 2.[\d].0 (.*)@(?:.*) Queued mail for delivery/',
+        'sendmail' => '/[\d]{3} 2\.0\.0 (.*) Message/',
+        'postfix' => '/[\d]{3} 2\.0\.0 Ok: queued as (.*)/',
+        'Microsoft_ESMTP' => '/[0-9]{3} 2\.[\d]\.0 (.*)@(?:.*) Queued mail for delivery/',
         'Amazon_SES' => '/[\d]{3} Ok (.*)/',
         'SendGrid' => '/[\d]{3} Ok: queued as (.*)/',
-        'CampaignMonitor' => '/[\d]{3} 2.0.0 OK:([a-zA-Z\d]{48})/',
+        'CampaignMonitor' => '/[\d]{3} 2\.0\.0 OK:([a-zA-Z\d]{48})/',
         'Haraka' => '/[\d]{3} Message Queued \((.*)\)/',
         'ZoneMTA' => '/[\d]{3} Message queued as (.*)/',
         'Mailjet' => '/[\d]{3} OK queued as (.*)/',
@@ -280,7 +280,8 @@ class SMTP
         }
         //Is this a PSR-3 logger?
         if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) {
-            $this->Debugoutput->debug($str);
+            //Remove trailing line breaks potentially added by calls to SMTP::client_send()
+            $this->Debugoutput->debug(rtrim($str, "\r\n"));
 
             return;
         }
@@ -293,6 +294,7 @@ class SMTP
         switch ($this->Debugoutput) {
             case 'error_log':
                 //Don't output, just log
+                /** @noinspection ForgottenDebugOutputInspection */
                 error_log($str);
                 break;
             case 'html':
@@ -404,7 +406,9 @@ class SMTP
         $errstr = '';
         if ($streamok) {
             $socket_context = stream_context_create($options);
-            set_error_handler([$this, 'errorHandler']);
+            set_error_handler(function () {
+                call_user_func_array([$this, 'errorHandler'], func_get_args());
+            });
             $connection = stream_socket_client(
                 $host . ':' . $port,
                 $errno,
@@ -419,7 +423,9 @@ class SMTP
                 'Connection: stream_socket_client not available, falling back to fsockopen',
                 self::DEBUG_CONNECTION
             );
-            set_error_handler([$this, 'errorHandler']);
+            set_error_handler(function () {
+                call_user_func_array([$this, 'errorHandler'], func_get_args());
+            });
             $connection = fsockopen(
                 $host,
                 $port,
@@ -483,7 +489,9 @@ class SMTP
         }
 
         //Begin encrypted connection
-        set_error_handler([$this, 'errorHandler']);
+            set_error_handler(function () {
+                call_user_func_array([$this, 'errorHandler'], func_get_args());
+            });
         $crypto_ok = stream_socket_enable_crypto(
             $this->smtp_conn,
             true,
@@ -648,7 +656,7 @@ class SMTP
         }
 
         //The following borrowed from
-        //http://php.net/manual/en/function.mhash.php#27225
+        //https://www.php.net/manual/en/function.mhash.php#27225
 
         //RFC 2104 HMAC implementation for php.
         //Creates an md5 HMAC.
@@ -1162,7 +1170,9 @@ class SMTP
         } else {
             $this->edebug('CLIENT -> SERVER: ' . $data, self::DEBUG_CLIENT);
         }
-        set_error_handler([$this, 'errorHandler']);
+        set_error_handler(function () {
+            call_user_func_array([$this, 'errorHandler'], func_get_args());
+        });
         $result = fwrite($this->smtp_conn, $data);
         restore_error_handler();
 
@@ -1265,7 +1275,9 @@ class SMTP
         while (is_resource($this->smtp_conn) && !feof($this->smtp_conn)) {
             //Must pass vars in here as params are by reference
             //solution for signals inspired by https://github.com/symfony/symfony/pull/6540
-            set_error_handler([$this, 'errorHandler']);
+            set_error_handler(function () {
+                call_user_func_array([$this, 'errorHandler'], func_get_args());
+            });
             $n = stream_select($selR, $selW, $selW, $this->Timelimit);
             restore_error_handler();