+global\PHPMailer::smtpConnect()

Complexity

Conditions	20
Paths	538

Size

Total Lines	90
Code Lines	54

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function smtpConnect($options = [])
    {
        if (is_null($this->smtp)) {
            $this->smtp = $this->getSMTPInstance();
        }

        //Already connected?
        if ($this->smtp->connected()) {
            return true;
        }

        $this->smtp->setTimeout($this->Timeout);
        $this->smtp->setDebugLevel($this->SMTPDebug);
        $this->smtp->setDebugOutput($this->Debugoutput);
        $this->smtp->setVerp($this->do_verp);
        $hosts = explode(';', $this->Host);
        $lastexception = null;

        foreach ($hosts as $hostentry) {
            $hostinfo = [];
            if (!preg_match('/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*):?([0-9]*)$/', trim($hostentry), $hostinfo)) {
                //Not a valid host entry
                continue;
            }
            //$hostinfo[2]: optional ssl or tls prefix
            //$hostinfo[3]: the hostname
            //$hostinfo[4]: optional port number
            //The host string prefix can temporarily override the current setting for SMTPSecure
            //If it's not specified, the default value is used
            $prefix = '';
            $tls = ($this->SMTPSecure == 'tls');
            if ($hostinfo[2] == 'ssl' or ($hostinfo[2] == '' and $this->SMTPSecure == 'ssl')) {
                $prefix = 'ssl://';
                $tls = false; //Can't have SSL and TLS at once
            } elseif ($hostinfo[2] == 'tls') {
                $tls = true;
                //tls doesn't use a prefix
            }
            $host = $hostinfo[3];
            $port = $this->Port;
            $tport = (int) $hostinfo[4];
            if ($tport > 0 and $tport < 65536) {
                $port = $tport;
            }
            if ($this->smtp->connect($prefix.$host, $port, $this->Timeout, $options)) {
                try {
                    if ($this->Helo) {
                        $hello = $this->Helo;
                    } else {
                        $hello = $this->serverHostname();
                    }
                    $this->smtp->hello($hello);

                    if ($tls) {
                        if (!$this->smtp->startTLS()) {
                            throw new phpmailerException($this->lang('connect_host'));
                        }
                        //We must resend HELO after tls negotiation
                        $this->smtp->hello($hello);
                    }
                    if ($this->SMTPAuth) {
                        if (!$this->smtp->authenticate(
                            $this->Username,
                            $this->Password,
                            $this->AuthType,
                            $this->Realm,
                            $this->Workstation
                        )
                        ) {
                            throw new phpmailerException($this->lang('authenticate'));
                        }
                    }

                    return true;
                } catch (phpmailerException $e) {
                    $lastexception = $e;
                    //We must have connected, but then failed TLS or Auth, so close connection nicely
                    $this->smtp->quit();
                }
            }
        }
        //If we get here, all connection attempts have failed, so close connection hard
        $this->smtp->close();
        //As we've caught all exceptions, just report whatever the last one was
        if ($this->exceptions and !is_null($lastexception)) {
            throw $lastexception;
        }

        return false;
    }