EmailService::localDomain() - Code Metrics - Inspection of "Fix: #2719 cannot send messages using ugly urls; r..." - fisharebest/webtrees - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 149810...e381f9 )

by Greg

created 2019-11-01 19:45 UTC

EmailService::localDomain() A

↳ Parent: EmailService

Complexity

Conditions	3
Paths	2

Size

Total Lines	12
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	6
c	0
b	0
f	0
nc	2
nop	0
dl	0
loc	12
rs	10

<?php

/**
 * webtrees: online genealogy
 * Copyright (C) 2019 webtrees development team
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

declare(strict_types=1);

namespace Fisharebest\Webtrees\Services;

use Exception;
use Fisharebest\Webtrees\Contracts\UserInterface;
use Fisharebest\Webtrees\I18N;
use Fisharebest\Webtrees\Log;
use Fisharebest\Webtrees\Site;
use Swift_Mailer;
use Swift_Message;
use Swift_NullTransport;
use Swift_SendmailTransport;
use Swift_Signers_DKIMSigner;
use Swift_SmtpTransport;
use Swift_Transport;
use Throwable;

use function filter_var;
use function function_exists;
use function gethostbyaddr;
use function gethostbyname;
use function gethostname;
use function getmxrr;
use function str_replace;
use function strrchr;
use function substr;

use const FILTER_VALIDATE_DOMAIN;
use const FILTER_VALIDATE_EMAIL;

/**
 * Send emails.
 */
class EmailService
{
    /**
     * Send an external email message
     * Caution! gmail may rewrite the "From" header unless you have added the address to your account.
     *
     * @param UserInterface $from
     * @param UserInterface $to
     * @param UserInterface $reply_to
     * @param string        $subject
     * @param string        $message_text
     * @param string        $message_html
     *
     * @return bool
     */
    public function send(UserInterface $from, UserInterface $to, UserInterface $reply_to, string $subject, string $message_text, string $message_html): bool
    {
        // Mail needs MSDOS line endings
        $message_text = str_replace("\n", "\r\n", $message_text);
        $message_html = str_replace("\n", "\r\n", $message_html);

        // Special accounts do not have an email address.  Use the system one.
        $from_email     = $from->email() ?: $this->senderEmail();
        $reply_to_email = $reply_to->email() ?: $this->senderEmail();

        $message = (new Swift_Message())
            ->setSubject($subject)
            ->setFrom($from_email, $from->realName())
            ->setTo($to->email(), $to->realName())
            ->setBody($message_html, 'text/html');

        if ($from_email !== $reply_to_email) {
            $message->setReplyTo($reply_to_email, $reply_to->realName());
        }

        $dkim_domain   = Site::getPreference('DKIM_DOMAIN');
        $dkim_selector = Site::getPreference('DKIM_SELECTOR');
        $dkim_key      = Site::getPreference('DKIM_KEY');

        if ($dkim_domain !== '' && $dkim_selector !== '' && $dkim_key !== '') {
            $signer = new Swift_Signers_DKIMSigner($dkim_key, $dkim_domain, $dkim_selector);
            $signer
                ->setHeaderCanon('relaxed')
                ->setBodyCanon('relaxed');

            $message->attachSigner($signer);
        } else {
            // DKIM body hashes don't work with multipart/alternative content.
            $message->addPart($message_text, 'text/plain');
        }

        $mailer = new Swift_Mailer($this->transport());

        try {
            $mailer->send($message);
        } catch (Exception $ex) {
            Log::addErrorLog('MailService: ' . $ex->getMessage());

            return false;
        }

        return true;
    }

    /**
     * Create a transport mechanism for sending mail
     *
     * @return Swift_Transport
     */
    private function transport(): Swift_Transport
    {
        switch (Site::getPreference('SMTP_ACTIVE')) {
            case 'sendmail':
                // Local sendmail (requires PHP proc_* functions)
                return new Swift_SendmailTransport();

            case 'external':
                // SMTP
                $smtp_host = Site::getPreference('SMTP_HOST');
                $smtp_port = (int) Site::getPreference('SMTP_PORT', '25');
                $smtp_auth = (bool) Site::getPreference('SMTP_AUTH');
                $smtp_user = Site::getPreference('SMTP_AUTH_USER');
                $smtp_pass = Site::getPreference('SMTP_AUTH_PASS');
                $smtp_encr = Site::getPreference('SMTP_SSL');

                $transport = new Swift_SmtpTransport($smtp_host, $smtp_port, $smtp_encr);

                $transport->setLocalDomain($this->localDomain());

                if ($smtp_auth) {
                    $transport
                        ->setUsername($smtp_user)
                        ->setPassword($smtp_pass);
                }

                return $transport;

            default:
                // For testing
                return new Swift_NullTransport();
        }
    }

    /**
     * Where are we sending mail from?
     *
     * @return string
     */
    public function localDomain(): string
    {
        $local_domain = Site::getPreference('SMTP_HELO');

        try {
            // Look ourself up using DNS.
            $default = gethostbyaddr(gethostbyname(gethostname()));
        } catch (Throwable $ex) {
            $default = 'localhost';
        }

        return $local_domain ?: $default;
    }

    /**
     * Who are we sending mail from?
     *
     * @return string
     */
    public function senderEmail(): string
    {
        $sender  = Site::getPreference('SMTP_FROM_NAME');
        $default = 'no-reply@' . $this->localDomain();

        return $sender ?: $default;
    }

    /**
     * Many mail relays require a valid sender email.
     *
     * @param string $email
     *
     * @return bool
     */
    public function isValidEmail(string $email): bool
    {
        if (filter_var($email, FILTER_VALIDATE_EMAIL) === false) {
            return false;
        }

        $domain = substr(strrchr($email, '@'), 1);

        if (filter_var($domain, FILTER_VALIDATE_DOMAIN) === false) {
            return false;
        }

        return getmxrr($domain, $mxhosts);
    }

    /**
     * A list SSL modes (e.g. for an edit control).
     *
     * @return string[]
     */
    public function mailSslOptions(): array
    {
        return [
            'none' => I18N::translate('none'),
            /* I18N: Secure Sockets Layer - a secure communications protocol*/
            'ssl'  => I18N::translate('ssl'),
            /* I18N: Transport Layer Security - a secure communications protocol */
            'tls'  => I18N::translate('tls'),
        ];
    }

    /**
     * A list SSL modes (e.g. for an edit control).
     *
     * @return string[]
     */
    public function mailTransportOptions(): array
    {
        $options = [
            /* I18N: "sendmail" is the name of some mail software */
            'sendmail' => I18N::translate('Use sendmail to send messages'),
            'external' => I18N::translate('Use SMTP to send messages'),
        ];

        if (!function_exists('proc_open')) {
            unset($options['sendmail']);
        }

        return $options;
    }
}


1			<?php
2
3			/**
4			* webtrees: online genealogy
5			* Copyright (C) 2019 webtrees development team
6			* This program is free software: you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation, either version 3 of the License, or
9			* (at your option) any later version.
10			* This program is distributed in the hope that it will be useful,
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13			* GNU General Public License for more details.
14			* You should have received a copy of the GNU General Public License
15			* along with this program. If not, see <http://www.gnu.org/licenses/>.
16			*/
17
18			declare(strict_types=1);
19
20			namespace Fisharebest\Webtrees\Services;
21
22			use Exception;
23			use Fisharebest\Webtrees\Contracts\UserInterface;
24			use Fisharebest\Webtrees\I18N;
25			use Fisharebest\Webtrees\Log;
26			use Fisharebest\Webtrees\Site;
27			use Swift_Mailer;
28			use Swift_Message;
29			use Swift_NullTransport;
30			use Swift_SendmailTransport;
31			use Swift_Signers_DKIMSigner;
32			use Swift_SmtpTransport;
33			use Swift_Transport;
34			use Throwable;
35
36			use function filter_var;
37			use function function_exists;
38			use function gethostbyaddr;
39			use function gethostbyname;
40			use function gethostname;
41			use function getmxrr;
42			use function str_replace;
43			use function strrchr;
44			use function substr;
45
46			use const FILTER_VALIDATE_DOMAIN;
47			use const FILTER_VALIDATE_EMAIL;
48
49			/**
50			* Send emails.
51			*/
52			class EmailService
53			{
54			/**
55			* Send an external email message
56			* Caution! gmail may rewrite the "From" header unless you have added the address to your account.
57			*
58			* @param UserInterface $from
59			* @param UserInterface $to
60			* @param UserInterface $reply_to
61			* @param string $subject
62			* @param string $message_text
63			* @param string $message_html
64			*
65			* @return bool
66			*/
67			public function send(UserInterface $from, UserInterface $to, UserInterface $reply_to, string $subject, string $message_text, string $message_html): bool
68			{
69			// Mail needs MSDOS line endings
70			$message_text = str_replace("\n", "\r\n", $message_text);
71			$message_html = str_replace("\n", "\r\n", $message_html);
72
73			// Special accounts do not have an email address. Use the system one.
74			$from_email = $from->email() ?: $this->senderEmail();
75			$reply_to_email = $reply_to->email() ?: $this->senderEmail();
76
77			$message = (new Swift_Message())
78			->setSubject($subject)
79			->setFrom($from_email, $from->realName())
80			->setTo($to->email(), $to->realName())
81			->setBody($message_html, 'text/html');
82
83			if ($from_email !== $reply_to_email) {
84			$message->setReplyTo($reply_to_email, $reply_to->realName());
85			}
86
87			$dkim_domain = Site::getPreference('DKIM_DOMAIN');
88			$dkim_selector = Site::getPreference('DKIM_SELECTOR');
89			$dkim_key = Site::getPreference('DKIM_KEY');
90
91			if ($dkim_domain !== '' && $dkim_selector !== '' && $dkim_key !== '') {
92			$signer = new Swift_Signers_DKIMSigner($dkim_key, $dkim_domain, $dkim_selector);
93			$signer
94			->setHeaderCanon('relaxed')
95			->setBodyCanon('relaxed');
96
97			$message->attachSigner($signer);
98			} else {
99			// DKIM body hashes don't work with multipart/alternative content.
100			$message->addPart($message_text, 'text/plain');
101			}
102
103			$mailer = new Swift_Mailer($this->transport());
104
105			try {
106			$mailer->send($message);
107			} catch (Exception $ex) {
108			Log::addErrorLog('MailService: ' . $ex->getMessage());
109
110			return false;
111			}
112
113			return true;
114			}
115
116			/**
117			* Create a transport mechanism for sending mail
118			*
119			* @return Swift_Transport
120			*/
121			private function transport(): Swift_Transport
122			{
123			switch (Site::getPreference('SMTP_ACTIVE')) {
124			case 'sendmail':
125			// Local sendmail (requires PHP proc_* functions)
126			return new Swift_SendmailTransport();
127
128			case 'external':
129			// SMTP
130			$smtp_host = Site::getPreference('SMTP_HOST');
131			$smtp_port = (int) Site::getPreference('SMTP_PORT', '25');
132			$smtp_auth = (bool) Site::getPreference('SMTP_AUTH');
133			$smtp_user = Site::getPreference('SMTP_AUTH_USER');
134			$smtp_pass = Site::getPreference('SMTP_AUTH_PASS');
135			$smtp_encr = Site::getPreference('SMTP_SSL');
136
137			$transport = new Swift_SmtpTransport($smtp_host, $smtp_port, $smtp_encr);
138
139			$transport->setLocalDomain($this->localDomain());
140
141			if ($smtp_auth) {
142			$transport
143			->setUsername($smtp_user)
144			->setPassword($smtp_pass);
145			}
146
147			return $transport;
148
149			default:
150			// For testing
151			return new Swift_NullTransport();
152			}
153			}
154
155			/**
156			* Where are we sending mail from?
157			*
158			* @return string
159			*/
160			public function localDomain(): string
161			{
162			$local_domain = Site::getPreference('SMTP_HELO');
163
164			try {
165			// Look ourself up using DNS.
166			$default = gethostbyaddr(gethostbyname(gethostname()));
167			} catch (Throwable $ex) {
168			$default = 'localhost';
169			}
170
171			return $local_domain ?: $default;
172			}
173
174			/**
175			* Who are we sending mail from?
176			*
177			* @return string
178			*/
179			public function senderEmail(): string
180			{
181			$sender = Site::getPreference('SMTP_FROM_NAME');
182			$default = 'no-reply@' . $this->localDomain();
183
184			return $sender ?: $default;
185			}
186
187			/**
188			* Many mail relays require a valid sender email.
189			*
190			* @param string $email
191			*
192			* @return bool
193			*/
194			public function isValidEmail(string $email): bool
195			{
196			if (filter_var($email, FILTER_VALIDATE_EMAIL) === false) {
197			return false;
198			}
199
200			$domain = substr(strrchr($email, '@'), 1);
201
202			if (filter_var($domain, FILTER_VALIDATE_DOMAIN) === false) {
203			return false;
204			}
205
206			return getmxrr($domain, $mxhosts);
207			}
208
209			/**
210			* A list SSL modes (e.g. for an edit control).
211			*
212			* @return string[]
213			*/
214			public function mailSslOptions(): array
215			{
216			return [
217			'none' => I18N::translate('none'),
218			/* I18N: Secure Sockets Layer - a secure communications protocol*/
219			'ssl' => I18N::translate('ssl'),
220			/* I18N: Transport Layer Security - a secure communications protocol */
221			'tls' => I18N::translate('tls'),
222			];
223			}
224
225			/**
226			* A list SSL modes (e.g. for an edit control).
227			*
228			* @return string[]
229			*/
230			public function mailTransportOptions(): array
231			{
232			$options = [
233			/* I18N: "sendmail" is the name of some mail software */
234			'sendmail' => I18N::translate('Use sendmail to send messages'),
235			'external' => I18N::translate('Use SMTP to send messages'),
236			];
237
238			if (!function_exists('proc_open')) {
239			unset($options['sendmail']);
240			}
241
242			return $options;
243			}
244			}
245

fisharebest / webtrees

Push — master ( 149810...e381f9 )

EmailService::localDomain() A

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