Message::getFrom() - Code Metrics - Inspection of "Finish all feature move on tests" - platine-php/mail - Measure and Improve Code Quality continuously with Scrutinizer

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Push — develop ( c34963...58e492 )

by nguereza

created 2021-03-28 16:10 UTC

Message::getFrom() A

↳ Parent: Message

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	0
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php

/**
 * Platine Mail
 *
 * Platine Mail provides a flexible and powerful PHP email sender
 *  with support of SMTP, Native Mail, sendmail, etc transport.
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2020 Platine Mail
 * Copyright (c) 2015, Sonia Marquette
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/**
 *  @file Message.php
 *
 *  The Message class
 *
 *  @package    Platine\Mail
 *  @author Platine Developers Team
 *  @copyright  Copyright (c) 2020
 *  @license    http://opensource.org/licenses/MIT  MIT License
 *  @link   http://www.iacademy.cf
 *  @version 1.0.0
 *  @filesource
 */

declare(strict_types=1);

namespace Platine\Mail;

use InvalidArgumentException;

/**
 * Class Message
 * @package Platine\Mail
 */
class Message implements MessageInterface
{

    /**
     *
     * @var string
     */
    protected string $from = '';

    /**
     *
     * @var string
     */
    protected string $replyTo = '';

    /**
     * The send mail receiver(s)
     * @var array<int, string>
     */
    protected array $to = [];

    /**
     * The send mail receiver(s) copy
     * @var array<int|string, string> $cc
     */
    protected array $cc = [];

    /**
     * The send mail receiver(s) hidden copy
     * @var array<int|string, string> $bcc
     */
    protected array $bcc = [];

    /**
     * The mail subject
     * @var string
     */
    protected string $subject = '';

    /**
     * The mail body
     * @var string
     */
    protected string $body = '';

     /**
     * The mail attachments
     * @var array<int, array<string, string>>
     */
    protected array $attachments = [];

     /**
     * The mail headers
     * @var array<string, mixed>
     */
    protected array $headers = [];

    /**
     * The mail boundary value
     * @var string
     */
    protected string $uid = '';

    /**
     * Maximum characters for each message line
     * @var int
     */
    protected int $wrap = 78;

    /**
     * Set mail priority
     * @var int
     */
    protected int $priority = 3;

    /**
     * Create new instance
     */
    public function __construct()
    {
        $this->reset();
    }

    /**
     * {@inheritedoc}
     */
    public function reset(): self
    {
        $this->from = '';
        $this->replyTo = '';
        $this->to = [];
        $this->cc = [];
        $this->bcc = [];
        $this->subject = '';
        $this->body = '';
        $this->attachments = [];
        $this->headers = [];
        $this->uid = md5(uniqid((string)time()));
        $this->wrap = 78;
        $this->priority = 3;

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function addAttachment(string $path, ?string $filename = null): self
    {
        if (!file_exists($path)) {
            throw new InvalidArgumentException(sprintf(
                'The email attachment file [%s] does not exists.',
                $path
            ));
        }

        if (empty($filename)) {
            $filename = basename($path);
        }

        $filename = $this->encodeUtf8($this->filterString($filename));
        $data = $this->getAttachmentData($path);

        if ($data !== null) {
            $this->attachments[] = [
                'file' => $filename,
                'path' => $path,
                'data' => chunk_split(base64_encode($data))
            ];
        }

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function setBcc(array $pairs): self
    {
        $this->bcc = $pairs;

        return $this->addMailHeaders('Bcc', $pairs);
    }

    /**
     * {@inheritedoc}
     */
    public function getBcc(): array
    {
        return $this->bcc;
    }

    /**
     * {@inheritedoc}
     */
    public function setCc(array $pairs): self
    {
        $this->cc = $pairs;

        return $this->addMailHeaders('Cc', $pairs);
    }

    /**
     * {@inheritedoc}
     */
    public function getCc(): array
    {
        return $this->cc;
    }

    /**
     * {@inheritedoc}
     */
    public function setBody(string $body): self
    {
        $this->body = str_replace("\n.", "\n..", $body);

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function getEncodedBody(): string
    {
        $body = wordwrap($this->body, $this->wrap);
        if ($this->hasAttachments()) {
            $this->setAttachmentHeaders();
            $body = $this->getAttachmentBody();
        }

        return $body;
    }

    /**
     * {@inheritedoc}
     */
    public function getFormattedHeaders(): string
    {
        $this->prepareHeaders();
        $content = '';
        foreach ($this->headers as $name => $value) {
            $content .= $name . ': ' . $value . PHP_EOL;
        }

        return $content;
    }

    /**
     * {@inheritedoc}
     */
    public function setFrom(string $email, ?string $name = null): self
    {
        $this->from = $this->formatHeader($email, $name);

        return $this->addMailHeader('From', $email, $name);
    }

    /**
     * {@inheritedoc}
     */
    public function getFrom(): string
    {
        return $this->from;
    }

    /**
    *  {@inheritedoc}
    */
    public function setReplyTo(string $email, ?string $name = null): self
    {
        $this->replyTo = $this->formatHeader($email, $name);

        return $this->addMailHeader('Reply-To', $email, $name);
    }

    /**
     * {@inheritedoc}
     */
    public function getSubject(): string
    {
        return $this->subject;
    }

    /**
     * {@inheritedoc}
     */
    public function setSubject(string $subject): self
    {
        $this->subject = $this->encodeUtf8($this->filterString($subject));

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function setTo(string $email, ?string $name = null): self
    {
        $this->to[] = $this->formatHeader($email, $name);

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function getTo(): array
    {
        return $this->to;
    }

    /**
     * {@inheritedoc}
     */
    public function setWrap(int $wrap = 78): self
    {
        if ($wrap < 1) {
            $wrap = 78;
        }

        $this->wrap = $wrap;

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function setPriority(int $priority = 3): self
    {
        if ($priority < 1 || $priority > 5) {
            $priority = 3;
        }

        $this->priority = $priority;

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function getHeader(string $name, $default = null)
    {
        $this->prepareHeaders();

        return array_key_exists($name, $this->headers)
                ? $this->headers[$name]
                : $default;
    }

    /**
     * {@inheritedoc}
     */
    public function addGenericHeader(string $name, $value): self
    {
        $this->headers[$name] = $value;

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function addMailHeader(string $header, string $email, ?string $name = null): self
    {
        $address = $this->formatHeader($email, $name);
        $this->headers[$header] = $address;

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function addMailHeaders(string $header, array $pairs): self
    {
        if (count($pairs) === 0) {
            throw new InvalidArgumentException('The mail headers is empty');
        }

        $addresses = [];
        foreach ($pairs as $name => $email) {
            if (is_numeric($name)) {
                $name = null;
            }
            $addresses[] = $this->formatHeader($email, $name);
        }

        $this->addGenericHeader($header, implode(', ', $addresses));

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function hasAttachments(): bool
    {
        return !empty($this->attachments);
    }

    /**
     * {@inheritedoc}
     */
    public function setHtml(): self
    {
        $this->addGenericHeader('Content-Type', 'text/html; charset="utf-8"');

        return $this;
    }

    /**
     * {@inheritedoc}
     */
    public function __toString(): string
    {
        $this->prepareHeaders();
        $content = $this->getFormattedHeaders();
        $content .= $this->getEncodedBody();
        $content .= PHP_EOL;

        return $content;
    }


    /**
     * Prepare mail headers
     * @return $this
     */
    protected function prepareHeaders(): self
    {
        $this->headers['Date'] = date('r');
        if (!array_key_exists('Return-Path', $this->headers)) {
            $this->headers['Return-Path'] = $this->from;
        }

        $this->headers['X-Priority'] = $this->priority;
        $this->headers['X-Mailer'] = 'Platine PHP Mail';
        $this->headers['Subject'] = $this->subject;
        $this->headers['To'] = join(', ', $this->to);

        return $this;
    }

    /**
     * Set mail attachments headers
     * @return $this
     */
    protected function setAttachmentHeaders(): self
    {
        $this->headers['MIME-Version'] = '1.0';
        $this->headers['Content-Type'] = sprintf('multipart/mixed; boundary="%s"', $this->uid);

        return $this;
    }

    /**
     * Get mail attachment data
     * @param string $path
     *
     * @return string|null
     */
    protected function getAttachmentData(string $path): ?string
    {
        $filesize = filesize($path);
        if ($filesize === false) {
            return null;
        }

        $handle = fopen($path, 'r');
        $content = null;
        if (is_resource($handle)) {
            $result = fread($handle, $filesize);
            if ($result !== false) {
                $content = $result;
            }
            fclose($handle);
        }

        return $content;
    }

    /**
     * Return the attachment body
     * @return string
     */
    protected function getAttachmentBody(): string
    {
        $body = [];
        $body[] = 'This is a multi-part message in MIME format.';
        $body[] = sprintf('--%s', $this->uid);
        $body[] = 'Content-Type: text/html; charset="UTF-8"';
        $body[] = 'Content-Transfer-Encoding: base64';
        $body[] = PHP_EOL;
        $body[] = chunk_split(base64_encode($this->body));
        $body[] = PHP_EOL;
        $body[] = sprintf('--%s', $this->uid);

        foreach ($this->attachments as $attachment) {
            $body[] = $this->getAttachmentMimeTemplate($attachment);
        }

        return implode(PHP_EOL, $body) . '--';
    }

    /**
     * Get attachment mime template
     * @param array<string, string> $attachment
     * @return string
     */
    protected function getAttachmentMimeTemplate(array $attachment): string
    {
        $file = $attachment['file'];
        $data = $attachment['data'];

        $head = [];
        $head[] = sprintf('Content-Type: application/octet-stream; name="%s"', $file);
        $head[] = 'Content-Transfer-Encoding: base64';
        $head[] = sprintf('Content-Disposition: attachment; filename="%s"', $file);
        $head[] = '';
        $head[] = $data;
        $head[] = '';
        $head[] = sprintf('--%s', $this->uid);

        return implode(PHP_EOL, $head);
    }

    /**
     * Format mail header
     * @param string $email
     * @param string|null $name
     * @return string
     */
    protected function formatHeader(string $email, ?string $name = null): string
    {
        $email = $this->filterEmail($email);
        if (empty($name)) {
            return $email;
        }
        $name = $this->encodeUtf8($this->filterName($name));

        return sprintf('"%s" <%s>', $name, $email);
    }

    /**
     * Filter email address
     * @param string $email
     * @return string
     */
    protected function filterEmail(string $email): string
    {
        $rules = [
           "\r" => '',
            "\n" => '',
            "\t" => '',
            '"'  => '',
            ','  => '',
            '<'  => '',
            '>'  => ''
        ];

        $email = strtr($email, $rules);
        $email = filter_var($email, FILTER_SANITIZE_EMAIL);

        return $email === false ? '' : $email;
    }

    /**
     * Filter name address
     * @param string $name
     * @return string
     */
    protected function filterName(string $name): string
    {
        $rules = [
           "\r" => '',
            "\n" => '',
            "\t" => '',
            '"'  => "'",
            '<'  => '[',
            '>'  => ']',
        ];

        $filtered = filter_var(
            $name,
            FILTER_SANITIZE_STRING,
            FILTER_FLAG_NO_ENCODE_QUOTES
        );

        if ($filtered === false) {
            return '';
        }

        return trim(strtr($filtered, $rules));
    }

    /**
     * Filter the string other than email and name
     * @param string $value
     * @return string
     */
    protected function filterString(string $value): string
    {
        $filtered = filter_var(
            $value,
            FILTER_UNSAFE_RAW,
            FILTER_FLAG_STRIP_LOW
        );
        return $filtered === false ? '' : $filtered;
    }

    /**
     * Encode the UTF-8 value for the given string
     * @param string $value
     * @return string
     */
    protected function encodeUtf8(?string $value): string
    {
        $value = trim((string)$value);
        if (preg_match('/(\s)/', $value)) {
            return $this->encodeUtf8Words($value);
        }

        return $this->encodeUtf8Word($value);
    }

    /**
     * Encode the UTF-8 value for on word
     * @param string $value
     * @return string
     */
    protected function encodeUtf8Word(string $value): string
    {
        return sprintf('=?UTF-8?B?%s?=', base64_encode($value));
    }

    /**
     * Encode the UTF-8 for multiple word
     * @param string $value
     * @return string
     */
    protected function encodeUtf8Words(string $value): string
    {
        $words = explode(' ', $value);
        $encoded = [];
        foreach ($words as $word) {
            $encoded[] = $this->encodeUtf8Word($word);
        }
        return join($this->encodeUtf8Word(' '), $encoded);
    }
}


1			<?php
2
3			/**
4			* Platine Mail
5			*
6			* Platine Mail provides a flexible and powerful PHP email sender
7			* with support of SMTP, Native Mail, sendmail, etc transport.
8			*
9			* This content is released under the MIT License (MIT)
10			*
11			* Copyright (c) 2020 Platine Mail
12			* Copyright (c) 2015, Sonia Marquette
13			*
14			* Permission is hereby granted, free of charge, to any person obtaining a copy
15			* of this software and associated documentation files (the "Software"), to deal
16			* in the Software without restriction, including without limitation the rights
17			* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
18			* copies of the Software, and to permit persons to whom the Software is
19			* furnished to do so, subject to the following conditions:
20			*
21			* The above copyright notice and this permission notice shall be included in all
22			* copies or substantial portions of the Software.
23			*
24			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25			* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26			* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
27			* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28			* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
29			* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30			* SOFTWARE.
31			*/
32
33			/**
34			* @file Message.php
35			*
36			* The Message class
37			*
38			* @package Platine\Mail
39			* @author Platine Developers Team
40			* @copyright Copyright (c) 2020
41			* @license http://opensource.org/licenses/MIT MIT License
42			* @link http://www.iacademy.cf
43			* @version 1.0.0
44			* @filesource
45			*/
46
47			declare(strict_types=1);
48
49			namespace Platine\Mail;
50
51			use InvalidArgumentException;
52
53			/**
54			* Class Message
55			* @package Platine\Mail
56			*/
57			class Message implements MessageInterface
58			{
59
60			/**
61			*
62			* @var string
63			*/
64			protected string $from = '';
65
66			/**
67			*
68			* @var string
69			*/
70			protected string $replyTo = '';
71
72			/**
73			* The send mail receiver(s)
74			* @var array<int, string>
75			*/
76			protected array $to = [];
77
78			/**
79			* The send mail receiver(s) copy
80			* @var array<int\|string, string> $cc
81			*/
82			protected array $cc = [];
83
84			/**
85			* The send mail receiver(s) hidden copy
86			* @var array<int\|string, string> $bcc
87			*/
88			protected array $bcc = [];
89
90			/**
91			* The mail subject
92			* @var string
93			*/
94			protected string $subject = '';
95
96			/**
97			* The mail body
98			* @var string
99			*/
100			protected string $body = '';
101
102			/**
103			* The mail attachments
104			* @var array<int, array<string, string>>
105			*/
106			protected array $attachments = [];
107
108			/**
109			* The mail headers
110			* @var array<string, mixed>
111			*/
112			protected array $headers = [];
113
114			/**
115			* The mail boundary value
116			* @var string
117			*/
118			protected string $uid = '';
119
120			/**
121			* Maximum characters for each message line
122			* @var int
123			*/
124			protected int $wrap = 78;
125
126			/**
127			* Set mail priority
128			* @var int
129			*/
130			protected int $priority = 3;
131
132			/**
133			* Create new instance
134			*/
135			public function __construct()
136			{
137			$this->reset();
138			}
139
140			/**
141			* {@inheritedoc}
142			*/
143			public function reset(): self
144			{
145			$this->from = '';
146			$this->replyTo = '';
147			$this->to = [];
148			$this->cc = [];
149			$this->bcc = [];
150			$this->subject = '';
151			$this->body = '';
152			$this->attachments = [];
153			$this->headers = [];
154			$this->uid = md5(uniqid((string)time()));
155			$this->wrap = 78;
156			$this->priority = 3;
157
158			return $this;
159			}
160
161			/**
162			* {@inheritedoc}
163			*/
164			public function addAttachment(string $path, ?string $filename = null): self
165			{
166			if (!file_exists($path)) {
167			throw new InvalidArgumentException(sprintf(
168			'The email attachment file [%s] does not exists.',
169			$path
170			));
171			}
172
173			if (empty($filename)) {
174			$filename = basename($path);
175			}
176
177			$filename = $this->encodeUtf8($this->filterString($filename));
178			$data = $this->getAttachmentData($path);
179
180			if ($data !== null) {
181			$this->attachments[] = [
182			'file' => $filename,
183			'path' => $path,
184			'data' => chunk_split(base64_encode($data))
185			];
186			}
187
188			return $this;
189			}
190
191			/**
192			* {@inheritedoc}
193			*/
194			public function setBcc(array $pairs): self
195			{
196			$this->bcc = $pairs;
197
198			return $this->addMailHeaders('Bcc', $pairs);
199			}
200
201			/**
202			* {@inheritedoc}
203			*/
204			public function getBcc(): array
205			{
206			return $this->bcc;
207			}
208
209			/**
210			* {@inheritedoc}
211			*/
212			public function setCc(array $pairs): self
213			{
214			$this->cc = $pairs;
215
216			return $this->addMailHeaders('Cc', $pairs);
217			}
218
219			/**
220			* {@inheritedoc}
221			*/
222			public function getCc(): array
223			{
224			return $this->cc;
225			}
226
227			/**
228			* {@inheritedoc}
229			*/
230			public function setBody(string $body): self
231			{
232			$this->body = str_replace("\n.", "\n..", $body);
233
234			return $this;
235			}
236
237			/**
238			* {@inheritedoc}
239			*/
240			public function getEncodedBody(): string
241			{
242			$body = wordwrap($this->body, $this->wrap);
243			if ($this->hasAttachments()) {
244			$this->setAttachmentHeaders();
245			$body = $this->getAttachmentBody();
246			}
247
248			return $body;
249			}
250
251			/**
252			* {@inheritedoc}
253			*/
254			public function getFormattedHeaders(): string
255			{
256			$this->prepareHeaders();
257			$content = '';
258			foreach ($this->headers as $name => $value) {
259			$content .= $name . ': ' . $value . PHP_EOL;
260			}
261
262			return $content;
263			}
264
265			/**
266			* {@inheritedoc}
267			*/
268			public function setFrom(string $email, ?string $name = null): self
269			{
270			$this->from = $this->formatHeader($email, $name);
271
272			return $this->addMailHeader('From', $email, $name);
273			}
274
275			/**
276			* {@inheritedoc}
277			*/
278			public function getFrom(): string
279			{
280			return $this->from;
281			}
282
283			/**
284			* {@inheritedoc}
285			*/
286			public function setReplyTo(string $email, ?string $name = null): self
287			{
288			$this->replyTo = $this->formatHeader($email, $name);
289
290			return $this->addMailHeader('Reply-To', $email, $name);
291			}
292
293			/**
294			* {@inheritedoc}
295			*/
296			public function getSubject(): string
297			{
298			return $this->subject;
299			}
300
301			/**
302			* {@inheritedoc}
303			*/
304			public function setSubject(string $subject): self
305			{
306			$this->subject = $this->encodeUtf8($this->filterString($subject));
307
308			return $this;
309			}
310
311			/**
312			* {@inheritedoc}
313			*/
314			public function setTo(string $email, ?string $name = null): self
315			{
316			$this->to[] = $this->formatHeader($email, $name);
317
318			return $this;
319			}
320
321			/**
322			* {@inheritedoc}
323			*/
324			public function getTo(): array
325			{
326			return $this->to;
327			}
328
329			/**
330			* {@inheritedoc}
331			*/
332			public function setWrap(int $wrap = 78): self
333			{
334			if ($wrap < 1) {
335			$wrap = 78;
336			}
337
338			$this->wrap = $wrap;
339
340			return $this;
341			}
342
343			/**
344			* {@inheritedoc}
345			*/
346			public function setPriority(int $priority = 3): self
347			{
348			if ($priority < 1 \|\| $priority > 5) {
349			$priority = 3;
350			}
351
352			$this->priority = $priority;
353
354			return $this;
355			}
356
357			/**
358			* {@inheritedoc}
359			*/
360			public function getHeader(string $name, $default = null)
361			{
362			$this->prepareHeaders();
363
364			return array_key_exists($name, $this->headers)
365			? $this->headers[$name]
366			: $default;
367			}
368
369			/**
370			* {@inheritedoc}
371			*/
372			public function addGenericHeader(string $name, $value): self
373			{
374			$this->headers[$name] = $value;
375
376			return $this;
377			}
378
379			/**
380			* {@inheritedoc}
381			*/
382			public function addMailHeader(string $header, string $email, ?string $name = null): self
383			{
384			$address = $this->formatHeader($email, $name);
385			$this->headers[$header] = $address;
386
387			return $this;
388			}
389
390			/**
391			* {@inheritedoc}
392			*/
393			public function addMailHeaders(string $header, array $pairs): self
394			{
395			if (count($pairs) === 0) {
396			throw new InvalidArgumentException('The mail headers is empty');
397			}
398
399			$addresses = [];
400			foreach ($pairs as $name => $email) {
401			if (is_numeric($name)) {
402			$name = null;
403			}
404			$addresses[] = $this->formatHeader($email, $name);
405			}
406
407			$this->addGenericHeader($header, implode(', ', $addresses));
408
409			return $this;
410			}
411
412			/**
413			* {@inheritedoc}
414			*/
415			public function hasAttachments(): bool
416			{
417			return !empty($this->attachments);
418			}
419
420			/**
421			* {@inheritedoc}
422			*/
423			public function setHtml(): self
424			{
425			$this->addGenericHeader('Content-Type', 'text/html; charset="utf-8"');
426
427			return $this;
428			}
429
430			/**
431			* {@inheritedoc}
432			*/
433			public function __toString(): string
434			{
435			$this->prepareHeaders();
436			$content = $this->getFormattedHeaders();
437			$content .= $this->getEncodedBody();
438			$content .= PHP_EOL;
439
440			return $content;
441			}
442
443
444			/**
445			* Prepare mail headers
446			* @return $this
447			*/
448			protected function prepareHeaders(): self
449			{
450			$this->headers['Date'] = date('r');
451			if (!array_key_exists('Return-Path', $this->headers)) {
452			$this->headers['Return-Path'] = $this->from;
453			}
454
455			$this->headers['X-Priority'] = $this->priority;
456			$this->headers['X-Mailer'] = 'Platine PHP Mail';
457			$this->headers['Subject'] = $this->subject;
458			$this->headers['To'] = join(', ', $this->to);
459
460			return $this;
461			}
462
463			/**
464			* Set mail attachments headers
465			* @return $this
466			*/
467			protected function setAttachmentHeaders(): self
468			{
469			$this->headers['MIME-Version'] = '1.0';
470			$this->headers['Content-Type'] = sprintf('multipart/mixed; boundary="%s"', $this->uid);
471
472			return $this;
473			}
474
475			/**
476			* Get mail attachment data
477			* @param string $path
478			*
479			* @return string\|null
480			*/
481			protected function getAttachmentData(string $path): ?string
482			{
483			$filesize = filesize($path);
484			if ($filesize === false) {
485			return null;
486			}
487
488			$handle = fopen($path, 'r');
489			$content = null;
490			if (is_resource($handle)) {
491			$result = fread($handle, $filesize);
492			if ($result !== false) {
493			$content = $result;
494			}
495			fclose($handle);
496			}
497
498			return $content;
499			}
500
501			/**
502			* Return the attachment body
503			* @return string
504			*/
505			protected function getAttachmentBody(): string
506			{
507			$body = [];
508			$body[] = 'This is a multi-part message in MIME format.';
509			$body[] = sprintf('--%s', $this->uid);
510			$body[] = 'Content-Type: text/html; charset="UTF-8"';
511			$body[] = 'Content-Transfer-Encoding: base64';
512			$body[] = PHP_EOL;
513			$body[] = chunk_split(base64_encode($this->body));
514			$body[] = PHP_EOL;
515			$body[] = sprintf('--%s', $this->uid);
516
517			foreach ($this->attachments as $attachment) {
518			$body[] = $this->getAttachmentMimeTemplate($attachment);
519			}
520
521			return implode(PHP_EOL, $body) . '--';
522			}
523
524			/**
525			* Get attachment mime template
526			* @param array<string, string> $attachment
527			* @return string
528			*/
529			protected function getAttachmentMimeTemplate(array $attachment): string
530			{
531			$file = $attachment['file'];
532			$data = $attachment['data'];
533
534			$head = [];
535			$head[] = sprintf('Content-Type: application/octet-stream; name="%s"', $file);
536			$head[] = 'Content-Transfer-Encoding: base64';
537			$head[] = sprintf('Content-Disposition: attachment; filename="%s"', $file);
538			$head[] = '';
539			$head[] = $data;
540			$head[] = '';
541			$head[] = sprintf('--%s', $this->uid);
542
543			return implode(PHP_EOL, $head);
544			}
545
546			/**
547			* Format mail header
548			* @param string $email
549			* @param string\|null $name
550			* @return string
551			*/
552			protected function formatHeader(string $email, ?string $name = null): string
553			{
554			$email = $this->filterEmail($email);
555			if (empty($name)) {
556			return $email;
557			}
558			$name = $this->encodeUtf8($this->filterName($name));
559
560			return sprintf('"%s" <%s>', $name, $email);
561			}
562
563			/**
564			* Filter email address
565			* @param string $email
566			* @return string
567			*/
568			protected function filterEmail(string $email): string
569			{
570			$rules = [
571			"\r" => '',
572			"\n" => '',
573			"\t" => '',
574			'"' => '',
575			',' => '',
576			'<' => '',
577			'>' => ''
578			];
579
580			$email = strtr($email, $rules);
581			$email = filter_var($email, FILTER_SANITIZE_EMAIL);
582
583			return $email === false ? '' : $email;
584			}
585
586			/**
587			* Filter name address
588			* @param string $name
589			* @return string
590			*/
591			protected function filterName(string $name): string
592			{
593			$rules = [
594			"\r" => '',
595			"\n" => '',
596			"\t" => '',
597			'"' => "'",
598			'<' => '[',
599			'>' => ']',
600			];
601
602			$filtered = filter_var(
603			$name,
604			FILTER_SANITIZE_STRING,
605			FILTER_FLAG_NO_ENCODE_QUOTES
606			);
607
608			if ($filtered === false) {
609			return '';
610			}
611
612			return trim(strtr($filtered, $rules));
613			}
614
615			/**
616			* Filter the string other than email and name
617			* @param string $value
618			* @return string
619			*/
620			protected function filterString(string $value): string
621			{
622			$filtered = filter_var(
623			$value,
624			FILTER_UNSAFE_RAW,
625			FILTER_FLAG_STRIP_LOW
626			);
627			return $filtered === false ? '' : $filtered;
628			}
629
630			/**
631			* Encode the UTF-8 value for the given string
632			* @param string $value
633			* @return string
634			*/
635			protected function encodeUtf8(?string $value): string
636			{
637			$value = trim((string)$value);
638			if (preg_match('/(\s)/', $value)) {
639			return $this->encodeUtf8Words($value);
640			}
641
642			return $this->encodeUtf8Word($value);
643			}
644
645			/**
646			* Encode the UTF-8 value for on word
647			* @param string $value
648			* @return string
649			*/
650			protected function encodeUtf8Word(string $value): string
651			{
652			return sprintf('=?UTF-8?B?%s?=', base64_encode($value));
653			}
654
655			/**
656			* Encode the UTF-8 for multiple word
657			* @param string $value
658			* @return string
659			*/
660			protected function encodeUtf8Words(string $value): string
661			{
662			$words = explode(' ', $value);
663			$encoded = [];
664			foreach ($words as $word) {
665			$encoded[] = $this->encodeUtf8Word($word);
666			}
667			return join($this->encodeUtf8Word(' '), $encoded);
668			}
669			}
670

platine-php / mail

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