Fix various compatibility issues with PHP 8
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Frédéric Guillot
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Frédéric Guillot
Frédéric Guillot
parent
f5bb55bdb8
commit
4bf3b0d459
273
libs/swiftmailer/classes/Swift/Plugins/PopBeforeSmtpPlugin.php
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273
libs/swiftmailer/classes/Swift/Plugins/PopBeforeSmtpPlugin.php
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<?php
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/*
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* This file is part of SwiftMailer.
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* (c) 2004-2009 Chris Corbyn
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* Makes sure a connection to a POP3 host has been established prior to connecting to SMTP.
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*
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* @author Chris Corbyn
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*/
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class Swift_Plugins_PopBeforeSmtpPlugin implements Swift_Events_TransportChangeListener, Swift_Plugins_Pop_Pop3Connection
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{
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/** A delegate connection to use (mostly a test hook) */
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private $_connection;
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/** Hostname of the POP3 server */
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private $_host;
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/** Port number to connect on */
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private $_port;
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/** Encryption type to use (if any) */
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private $_crypto;
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/** Username to use (if any) */
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private $_username;
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/** Password to use (if any) */
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private $_password;
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/** Established connection via TCP socket */
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private $_socket;
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/** Connect timeout in seconds */
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private $_timeout = 10;
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/** SMTP Transport to bind to */
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private $_transport;
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/**
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* Create a new PopBeforeSmtpPlugin for $host and $port.
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*
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* @param string $host
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* @param int $port
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* @param string $crypto as "tls" or "ssl"
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*/
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public function __construct($host, $port = 110, $crypto = null)
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{
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$this->_host = $host;
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$this->_port = $port;
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$this->_crypto = $crypto;
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}
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/**
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* Create a new PopBeforeSmtpPlugin for $host and $port.
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*
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* @param string $host
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* @param int $port
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* @param string $crypto as "tls" or "ssl"
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*
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* @return self
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*/
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public static function newInstance($host, $port = 110, $crypto = null)
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{
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return new self($host, $port, $crypto);
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}
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/**
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* Set a Pop3Connection to delegate to instead of connecting directly.
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*
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* @param Swift_Plugins_Pop_Pop3Connection $connection
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*
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* @return $this
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*/
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public function setConnection(Swift_Plugins_Pop_Pop3Connection $connection)
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{
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$this->_connection = $connection;
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return $this;
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}
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/**
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* Bind this plugin to a specific SMTP transport instance.
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*
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* @param Swift_Transport
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*/
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public function bindSmtp(Swift_Transport $smtp)
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{
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$this->_transport = $smtp;
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}
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/**
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* Set the connection timeout in seconds (default 10).
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*
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* @param int $timeout
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*
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* @return $this
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*/
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public function setTimeout($timeout)
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{
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$this->_timeout = (int) $timeout;
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return $this;
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}
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/**
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* Set the username to use when connecting (if needed).
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*
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* @param string $username
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*
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* @return $this
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*/
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public function setUsername($username)
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{
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$this->_username = $username;
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return $this;
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}
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/**
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* Set the password to use when connecting (if needed).
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*
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* @param string $password
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*
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* @return $this
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*/
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public function setPassword($password)
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{
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$this->_password = $password;
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return $this;
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}
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/**
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* Connect to the POP3 host and authenticate.
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*
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* @throws Swift_Plugins_Pop_Pop3Exception if connection fails
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*/
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public function connect()
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{
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if (isset($this->_connection)) {
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$this->_connection->connect();
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} else {
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if (!isset($this->_socket)) {
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if (!$socket = fsockopen(
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$this->_getHostString(), $this->_port, $errno, $errstr, $this->_timeout)) {
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throw new Swift_Plugins_Pop_Pop3Exception(
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sprintf('Failed to connect to POP3 host [%s]: %s', $this->_host, $errstr)
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);
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}
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$this->_socket = $socket;
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if (false === $greeting = fgets($this->_socket)) {
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throw new Swift_Plugins_Pop_Pop3Exception(
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sprintf('Failed to connect to POP3 host [%s]', trim($greeting))
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);
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}
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$this->_assertOk($greeting);
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if ($this->_username) {
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$this->_command(sprintf("USER %s\r\n", $this->_username));
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$this->_command(sprintf("PASS %s\r\n", $this->_password));
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}
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}
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}
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}
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/**
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* Disconnect from the POP3 host.
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*/
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public function disconnect()
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{
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if (isset($this->_connection)) {
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$this->_connection->disconnect();
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} else {
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$this->_command("QUIT\r\n");
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if (!fclose($this->_socket)) {
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throw new Swift_Plugins_Pop_Pop3Exception(
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sprintf('POP3 host [%s] connection could not be stopped', $this->_host)
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);
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}
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$this->_socket = null;
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}
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}
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/**
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* Invoked just before a Transport is started.
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*
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* @param Swift_Events_TransportChangeEvent $evt
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*/
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public function beforeTransportStarted(Swift_Events_TransportChangeEvent $evt)
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{
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if (isset($this->_transport)) {
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if ($this->_transport !== $evt->getTransport()) {
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return;
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}
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}
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$this->connect();
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$this->disconnect();
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}
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/**
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* Not used.
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*/
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public function transportStarted(Swift_Events_TransportChangeEvent $evt)
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{
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}
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/**
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* Not used.
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*/
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public function beforeTransportStopped(Swift_Events_TransportChangeEvent $evt)
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{
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}
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/**
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* Not used.
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*/
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public function transportStopped(Swift_Events_TransportChangeEvent $evt)
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{
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}
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private function _command($command)
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{
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if (!fwrite($this->_socket, $command)) {
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throw new Swift_Plugins_Pop_Pop3Exception(
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sprintf('Failed to write command [%s] to POP3 host', trim($command))
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);
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}
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if (false === $response = fgets($this->_socket)) {
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throw new Swift_Plugins_Pop_Pop3Exception(
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sprintf('Failed to read from POP3 host after command [%s]', trim($command))
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);
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}
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$this->_assertOk($response);
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return $response;
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}
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private function _assertOk($response)
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{
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if (substr($response, 0, 3) != '+OK') {
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throw new Swift_Plugins_Pop_Pop3Exception(
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sprintf('POP3 command failed [%s]', trim($response))
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);
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}
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}
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private function _getHostString()
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{
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$host = $this->_host;
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switch (strtolower($this->_crypto)) {
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case 'ssl':
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$host = 'ssl://'.$host;
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break;
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case 'tls':
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$host = 'tls://'.$host;
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break;
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}
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return $host;
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}
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}
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