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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2006 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Mail;
\defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Log\Log;
use Joomla\CMS\Mail\Exception\MailDisabledException;
use PHPMailer\PHPMailer\Exception as phpmailerException;
use PHPMailer\PHPMailer\PHPMailer;
/**
* Email Class. Provides a common interface to send email from the Joomla! Platform
*
* @since 1.7.0
*/
class Mail extends PHPMailer
{
/**
* Mail instances container.
*
* @var Mail[]
* @since 1.7.3
*/
protected static $instances = array();
/**
* Charset of the message.
*
* @var string
* @since 1.7.0
*/
public $CharSet = 'utf-8';
/**
* Constructor
*
* @param boolean $exceptions Flag if Exceptions should be thrown
*
* @since 1.7.0
*/
public function __construct($exceptions = true)
{
parent::__construct($exceptions);
// PHPMailer has an issue using the relative path for its language files
$this->setLanguage('en_gb', __DIR__ . '/language/');
// Configure a callback function to handle errors when $this->debug() is called
$this->Debugoutput = function ($message, $level)
{
Log::add(sprintf('Error in Mail API: %s', $message), Log::ERROR, 'mail');
};
// If debug mode is enabled then set SMTPDebug to the maximum level
if (\defined('JDEBUG') && JDEBUG)
{
$this->SMTPDebug = 4;
}
// Don't disclose the PHPMailer version
$this->XMailer = ' ';
/**
* Which validator to use by default when validating email addresses.
* Validation patterns supported:
* `auto` Pick best pattern automatically;
* `pcre8` Use the squiloople.com pattern, requires PCRE > 8.0;
* `pcre` Use old PCRE implementation;
* `php` Use PHP built-in FILTER_VALIDATE_EMAIL;
* `html5` Use the pattern given by the HTML5 spec for 'email' type form input elements.
* `noregex` Don't use a regex: super fast, really dumb.
*
* The default used by phpmailer is `php` but this does not support dotless domains so instead we use `html5`
*
* @see PHPMailer::validateAddress()
*
* @var string|callable
*/
PHPMailer::$validator = 'html5';
}
/**
* Returns the global email object, only creating it if it doesn't already exist.
*
* NOTE: If you need an instance to use that does not have the global configuration
* values, use an id string that is not 'Joomla'.
*
* @param string $id The id string for the Mail instance [optional]
* @param boolean $exceptions Flag if Exceptions should be thrown [optional]
*
* @return Mail The global Mail object
*
* @since 1.7.0
*/
public static function getInstance($id = 'Joomla', $exceptions = true)
{
if (empty(static::$instances[$id]))
{
static::$instances[$id] = new static($exceptions);
}
return static::$instances[$id];
}
/**
* Send the mail
*
* @return boolean Boolean true if successful, false if exception throwing is disabled.
*
* @since 1.7.0
*
* @throws MailDisabledException if the mail function is disabled
* @throws phpmailerException if sending failed
*/
public function Send()
{
if (!Factory::getApplication()->get('mailonline', 1))
{
throw new MailDisabledException(
MailDisabledException::REASON_USER_DISABLED,
Text::_('JLIB_MAIL_FUNCTION_OFFLINE'),
500
);
}
if ($this->Mailer === 'mail' && !\function_exists('mail'))
{
throw new MailDisabledException(
MailDisabledException::REASON_MAIL_FUNCTION_NOT_AVAILABLE,
Text::_('JLIB_MAIL_FUNCTION_DISABLED'),
500
);
}
try
{
$result = parent::send();
}
catch (phpmailerException $e)
{
// If auto TLS is disabled just let this bubble up
if (!$this->SMTPAutoTLS)
{
throw $e;
}
$result = false;
}
/*
* If sending failed and auto TLS is enabled, retry sending with the feature disabled
*
* See https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting#opportunistic-tls for more info
*/
if (!$result && $this->SMTPAutoTLS)
{
$this->SMTPAutoTLS = false;
try
{
$result = parent::send();
}
finally
{
// Reset the value for any future emails
$this->SMTPAutoTLS = true;
}
}
return $result;
}
/**
* Set the email sender
*
* @param mixed $from email address and Name of sender
* <code>array([0] => email Address, [1] => Name)</code>
* or as a string
*
* @return Mail|boolean Returns this object for chaining on success or boolean false on failure.
*
* @since 1.7.0
*
* @throws \UnexpectedValueException if the sender is not a valid address
* @throws phpmailerException if setting the sender failed and exception throwing is enabled
*/
public function setSender($from)
{
if (\is_array($from))
{
// If $from is an array we assume it has an address and a name
if (isset($from[2]))
{
// If it is an array with entries, use them
$result = $this->setFrom(MailHelper::cleanLine($from[0]), MailHelper::cleanLine($from[1]), (bool) $from[2]);
}
else
{
$result = $this->setFrom(MailHelper::cleanLine($from[0]), MailHelper::cleanLine($from[1]));
}
}
elseif (\is_string($from))
{
// If it is a string we assume it is just the address
$result = $this->setFrom(MailHelper::cleanLine($from));
}
else
{
// If it is neither, we log a message and throw an exception
Log::add(Text::sprintf('JLIB_MAIL_INVALID_EMAIL_SENDER', $from), Log::WARNING, 'jerror');
throw new \UnexpectedValueException(sprintf('Invalid email sender: %s', $from));
}
if ($result === false)
{
return false;
}
return $this;
}
/**
* Set the email subject
*
* @param string $subject Subject of the email
*
* @return Mail Returns this object for chaining.
*
* @since 1.7.0
*/
public function setSubject($subject)
{
$this->Subject = MailHelper::cleanLine($subject);
return $this;
}
/**
* Set the email body
*
* @param string $content Body of the email
*
* @return Mail Returns this object for chaining.
*
* @since 1.7.0
*/
public function setBody($content)
{
/*
* Filter the Body
* TODO: Check for XSS
*/
$this->Body = MailHelper::cleanText($content);
return $this;
}
/**
* Add recipients to the email.
*
* @param mixed $recipient Either a string or array of strings [email address(es)]
* @param mixed $name Either a string or array of strings [name(s)]
* @param string $method The parent method's name.
*
* @return Mail|boolean Returns this object for chaining on success or boolean false on failure.
*
* @since 1.7.0
*
* @throws \InvalidArgumentException if the argument array counts do not match
* @throws phpmailerException if setting the address failed and exception throwing is enabled
*/
protected function add($recipient, $name = '', $method = 'addAddress')
{
$method = lcfirst($method);
// If the recipient is an array, add each recipient... otherwise just add the one
if (\is_array($recipient))
{
if (\is_array($name))
{
$combined = array_combine($recipient, $name);
if ($combined === false)
{
throw new \InvalidArgumentException("The number of elements for each array isn't equal.");
}
foreach ($combined as $recipientEmail => $recipientName)
{
$recipientEmail = MailHelper::cleanLine($recipientEmail);
$recipientName = MailHelper::cleanLine($recipientName);
// Check for boolean false return if exception handling is disabled
if (\call_user_func('parent::' . $method, $recipientEmail, $recipientName) === false)
{
return false;
}
}
}
else
{
$name = MailHelper::cleanLine($name);
foreach ($recipient as $to)
{
$to = MailHelper::cleanLine($to);
// Check for boolean false return if exception handling is disabled
if (\call_user_func('parent::' . $method, $to, $name) === false)
{
return false;
}
}
}
}
else
{
$recipient = MailHelper::cleanLine($recipient);
// Check for boolean false return if exception handling is disabled
if (\call_user_func('parent::' . $method, $recipient, $name) === false)
{
return false;
}
}
return $this;
}
/**
* Add recipients to the email
*
* @param mixed $recipient Either a string or array of strings [email address(es)]
* @param mixed $name Either a string or array of strings [name(s)]
*
* @return Mail|boolean Returns this object for chaining on success or false on failure when exception throwing is disabled.
*
* @since 1.7.0
*
* @throws phpmailerException if exception throwing is enabled
*/
public function addRecipient($recipient, $name = '')
{
return $this->add($recipient, $name, 'addAddress');
}
/**
* Add carbon copy recipients to the email
*
* @param mixed $cc Either a string or array of strings [email address(es)]
* @param mixed $name Either a string or array of strings [name(s)]
*
* @return Mail|boolean Returns this object for chaining on success or boolean false on failure when exception throwing is enabled.
*
* @since 1.7.0
*
* @throws phpmailerException if exception throwing is enabled
*/
public function addCc($cc, $name = '')
{
// If the carbon copy recipient is an array, add each recipient... otherwise just add the one
if (isset($cc))
{
return $this->add($cc, $name, 'addCC');
}
return $this;
}
/**
* Add blind carbon copy recipients to the email
*
* @param mixed $bcc Either a string or array of strings [email address(es)]
* @param mixed $name Either a string or array of strings [name(s)]
*
* @return Mail|boolean Returns this object for chaining on success or boolean false on failure when exception throwing is disabled.
*
* @since 1.7.0
*
* @throws phpmailerException if exception throwing is enabled
*/
public function addBcc($bcc, $name = '')
{
// If the blind carbon copy recipient is an array, add each recipient... otherwise just add the one
if (isset($bcc))
{
return $this->add($bcc, $name, 'addBCC');
}
return $this;
}
/**
* Add file attachment to the email
*
* @param mixed $path Either a string or array of strings [filenames]
* @param mixed $name Either a string or array of strings [names]. N.B. if this is an array it must contain the same
* number of elements as the array of paths supplied.
* @param mixed $encoding The encoding of the attachment
* @param mixed $type The mime type
* @param string $disposition The disposition of the attachment
*
* @return Mail|boolean Returns this object for chaining on success or boolean false on failure when exception throwing is disabled.
*
* @since 3.0.1
* @throws \InvalidArgumentException if the argument array counts do not match
* @throws phpmailerException if setting the attachment failed and exception throwing is enabled
*/
public function addAttachment($path, $name = '', $encoding = 'base64', $type = 'application/octet-stream', $disposition = 'attachment')
{
// If the file attachments is an array, add each file... otherwise just add the one
if (isset($path))
{
$result = true;
if (\is_array($path))
{
if (!empty($name) && \count($path) != \count($name))
{
throw new \InvalidArgumentException('The number of attachments must be equal with the number of name');
}
foreach ($path as $key => $file)
{
if (!empty($name))
{
$result = parent::addAttachment($file, $name[$key], $encoding, $type);
}
else
{
if (!empty($name))
{
$result = parent::addAttachment($file, $name[$key], $encoding, $type, $disposition);
}
else
{
$result = parent::addAttachment($file, $name, $encoding, $type, $disposition);
}
}
}
// Check for boolean false return if exception handling is disabled
if ($result === false)
{
return false;
}
}
else
{
$result = parent::addAttachment($path, $name, $encoding, $type);
}
// Check for boolean false return if exception handling is disabled
if ($result === false)
{
return false;
}
}
return $this;
}
/**
* Unset all file attachments from the email
*
* @return Mail Returns this object for chaining.
*
* @since 3.0.1
*/
public function clearAttachments()
{
parent::clearAttachments();
return $this;
}
/**
* Unset file attachments specified by array index.
*
* @param integer $index The numerical index of the attachment to remove
*
* @return Mail Returns this object for chaining.
*
* @since 3.0.1
*/
public function removeAttachment($index = 0)
{
if (isset($this->attachment[$index]))
{
unset($this->attachment[$index]);
}
return $this;
}
/**
* Add Reply to email address(es) to the email
*
* @param mixed $replyto Either a string or array of strings [email address(es)]
* @param mixed $name Either a string or array of strings [name(s)]
*
* @return Mail|boolean Returns this object for chaining on success or boolean false on failure when exception throwing is disabled.
*
* @since 1.7.0
*
* @throws phpmailerException if exception throwing is enabled
*/
public function addReplyTo($replyto, $name = '')
{
return $this->add($replyto, $name, 'addReplyTo');
}
/**
* Sets message type to HTML
*
* @param boolean $ishtml Boolean true or false.
*
* @return Mail Returns this object for chaining.
*
* @since 3.1.4
*/
public function isHtml($ishtml = true)
{
parent::isHTML($ishtml);
return $this;
}
/**
* Send messages using $Sendmail.
*
* This overrides the parent class to remove the restriction on the executable's name containing the word "sendmail"
*
* @return void
*
* @since 1.7.0
*/
public function isSendmail()
{
// Prefer the Joomla configured sendmail path and default to the configured PHP path otherwise
$sendmail = Factory::getApplication()->get('sendmail', ini_get('sendmail_path'));
// And if we still don't have a path, then use the system default for Linux
if (empty($sendmail))
{
$sendmail = '/usr/sbin/sendmail';
}
$this->Sendmail = $sendmail;
$this->Mailer = 'sendmail';
}
/**
* Use sendmail for sending the email
*
* @param string $sendmail Path to sendmail [optional]
*
* @return boolean True on success
*
* @since 1.7.0
*/
public function useSendmail($sendmail = null)
{
$this->Sendmail = $sendmail;
if (!empty($this->Sendmail))
{
$this->isSendmail();
return true;
}
else
{
$this->isMail();
return false;
}
}
/**
* Use SMTP for sending the email
*
* @param string $auth SMTP Authentication [optional]
* @param string $host SMTP Host [optional]
* @param string $user SMTP Username [optional]
* @param string $pass SMTP Password [optional]
* @param string $secure Use secure methods
* @param integer $port The SMTP port
*
* @return boolean True on success
*
* @since 1.7.0
*/
public function useSmtp($auth = null, $host = null, $user = null, $pass = null, $secure = null, $port = 25)
{
$this->SMTPAuth = $auth;
$this->Host = $host;
$this->Username = $user;
$this->Password = $pass;
$this->Port = $port;
if ($secure === 'ssl' || $secure === 'tls')
{
$this->SMTPSecure = $secure;
}
if (($this->SMTPAuth !== null && $this->Host !== null && $this->Username !== null && $this->Password !== null)
|| ($this->SMTPAuth === null && $this->Host !== null))
{
$this->isSMTP();
return true;
}
else
{
$this->isMail();
return false;
}
}
/**
* Function to send an email
*
* @param string $from From email address
* @param string $fromName From name
* @param mixed $recipient Recipient email address(es)
* @param string $subject email subject
* @param string $body Message body
* @param boolean $mode false = plain text, true = HTML
* @param mixed $cc CC email address(es)
* @param mixed $bcc BCC email address(es)
* @param mixed $attachment Attachment file name(s)
* @param mixed $replyTo Reply to email address(es)
* @param mixed $replyToName Reply to name(s)
*
* @return boolean True on success, false on failure when exception throwing is disabled.
*
* @since 1.7.0
*
* @throws MailDisabledException if the mail function is disabled
* @throws phpmailerException if exception throwing is enabled
*/
public function sendMail($from, $fromName, $recipient, $subject, $body, $mode = false, $cc = null, $bcc = null, $attachment = null,
$replyTo = null, $replyToName = null
)
{
// Create config object
$app = Factory::getApplication();
$this->setSubject($subject);
$this->setBody($body);
// Are we sending the email as HTML?
$this->isHtml($mode);
/*
* Do not send the message if adding any of the below items fails
*/
if ($this->addRecipient($recipient) === false)
{
return false;
}
if ($this->addCc($cc) === false)
{
return false;
}
if ($this->addBcc($bcc) === false)
{
return false;
}
if ($this->addAttachment($attachment) === false)
{
return false;
}
// Take care of reply email addresses
if (\is_array($replyTo))
{
$numReplyTo = \count($replyTo);
for ($i = 0; $i < $numReplyTo; $i++)
{
if ($this->addReplyTo($replyTo[$i], $replyToName[$i]) === false)
{
return false;
}
}
}
elseif (isset($replyTo))
{
if ($this->addReplyTo($replyTo, $replyToName) === false)
{
return false;
}
}
elseif ($app->get('replyto'))
{
$this->addReplyTo($app->get('replyto'), $app->get('replytoname'));
}
// Add sender to replyTo only if no replyTo received
$autoReplyTo = empty($this->ReplyTo);
if ($this->setSender(array($from, $fromName, $autoReplyTo)) === false)
{
return false;
}
return $this->Send();
}
}