Yuri Kuznetsov
442 lines
12 KiB
PHP
442 lines
12 KiB
PHP
<?php
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/************************************************************************
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* This file is part of EspoCRM.
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*
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* EspoCRM - Open Source CRM application.
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* Copyright (C) 2014-2023 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
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* Website: https://www.espocrm.com
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*
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* EspoCRM is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* EspoCRM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
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************************************************************************/
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namespace Espo\Core\Mail\Parsers;
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use Psr\Http\Message\StreamInterface;
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use Espo\Entities\Email;
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use Espo\Entities\Attachment;
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use Espo\Core\Mail\Message;
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use Espo\Core\Mail\Parser;
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use Espo\Core\Mail\Message\Part;
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use Espo\Core\Mail\Message\MailMimeParser\Part as WrapperPart;
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use Espo\ORM\EntityManager;
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use ZBateson\MailMimeParser\Header\AddressHeader;
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use ZBateson\MailMimeParser\MailMimeParser as WrappeeParser;
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use ZBateson\MailMimeParser\Message\Part\MessagePart;
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use ZBateson\MailMimeParser\Message\Part\MimePart;
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use ZBateson\MailMimeParser\Message as ParserMessage;
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use stdClass;
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/**
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* An adapter for MailMimeParser library.
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*/
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class MailMimeParser implements Parser
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{
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/** @var array<string, string> */
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private array $extMimeTypeMap = [
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'jpg' => 'image/jpg',
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'jpeg' => 'image/jpeg',
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'png' => 'image/png',
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'gif' => 'image/gif',
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'webp' => 'image/webp',
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];
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private EntityManager $entityManager;
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private ?WrappeeParser $parser = null;
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/**
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* @var array<string, ParserMessage>
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*/
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private array $messageHash = [];
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public function __construct(EntityManager $entityManager)
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{
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$this->entityManager = $entityManager;
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}
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protected function getParser(): WrappeeParser
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{
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if (!$this->parser) {
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$this->parser = new WrappeeParser();
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}
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return $this->parser;
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}
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protected function loadContent(Message $message): void
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{
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$raw = $message->getFullRawContent();
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$key = spl_object_hash($message);
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$this->messageHash[$key] = $this->getParser()->parse($raw);
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}
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/**
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* @return ParserMessage
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*/
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protected function getMessage(Message $message)
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{
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$key = spl_object_hash($message);
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if (!array_key_exists($key, $this->messageHash)) {
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$raw = $message->getRawHeader();
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if (!$raw) {
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$raw = $message->getFullRawContent();
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}
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$this->messageHash[$key] = $this->getParser()->parse($raw);
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}
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return $this->messageHash[$key];
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}
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public function hasHeader(Message $message, string $name): bool
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{
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return $this->getMessage($message)->getHeaderValue($name) !== null;
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}
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public function getHeader(Message $message, string $name): ?string
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{
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if (!$this->hasHeader($message, $name)) {
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return null;
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}
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return $this->getMessage($message)->getHeaderValue($name);
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}
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public function getMessageId(Message $message): ?string
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{
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$messageId = $this->getHeader($message, 'Message-ID');
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if (!$messageId) {
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return null;
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}
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if ($messageId[0] !== '<') {
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$messageId = '<' . $messageId . '>';
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}
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return $messageId;
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}
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public function getAddressNameMap(Message $message): stdClass
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{
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$map = (object) [];
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foreach (['from', 'to', 'cc', 'reply-To'] as $type) {
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$header = $this->getMessage($message)->getHeader($type);
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if (!$header || !method_exists($header, 'getAddresses')) {
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continue;
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}
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/** @var AddressHeader $header */
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$list = $header->getAddresses();
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foreach ($list as $item) {
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$address = $item->getEmail();
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$name = $item->getName();
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if ($name && $address) {
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$map->$address = $name;
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}
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}
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}
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return $map;
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}
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public function getAddressData(Message $message, string $type): ?object
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{
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$header = $this->getMessage($message)->getHeader($type);
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/** @var ?AddressHeader $header */
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if ($header && method_exists($header, 'getAddresses')) {
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foreach ($header->getAddresses() as $item) {
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return (object) [
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'address' => $item->getEmail(),
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'name' => $item->getName(),
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];
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}
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}
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return null;
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}
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/**
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* @return string[]
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*/
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public function getAddressList(Message $message, string $type): array
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{
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$addressList = [];
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$header = $this->getMessage($message)->getHeader($type);
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/** @var ?AddressHeader $header */
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if ($header && method_exists($header, 'getAddresses')) {
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$list = $header->getAddresses();
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foreach ($list as $address) {
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$addressList[] = $address->getEmail();
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}
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}
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return $addressList;
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}
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/**
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* @return Part[]
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*/
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public function getPartList(Message $message): array
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{
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$wrappeeList = $this->getMessage($message)->getChildParts();
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$partList = [];
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foreach ($wrappeeList as $wrappee) {
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$partList[] = new WrapperPart($wrappee);
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}
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return $partList;
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}
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/**
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* @return Attachment[]
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*/
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public function getInlineAttachmentList(Message $message, Email $email): array
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{
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$inlineAttachmentList = [];
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$this->loadContent($message);
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$bodyPlain = '';
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$bodyHtml = '';
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$htmlPartCount = $this->getMessage($message)->getHtmlPartCount();
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$textPartCount = $this->getMessage($message)->getTextPartCount();
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if (!$htmlPartCount) {
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$bodyHtml = $this->getMessage($message)->getHtmlContent();
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}
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if (!$textPartCount) {
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$bodyPlain = $this->getMessage($message)->getTextContent();
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}
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for ($i = 0; $i < $htmlPartCount; $i++) {
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if ($i) {
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$bodyHtml .= "<br>";
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}
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$inlinePart = $this->getMessage($message)->getHtmlPart($i);
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$bodyHtml .= $inlinePart->getContent();
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}
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for ($i = 0; $i < $textPartCount; $i++) {
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if ($i) {
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$bodyPlain .= "\n";
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}
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$inlinePart = $this->getMessage($message)->getTextPart($i);
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$bodyPlain .= $inlinePart->getContent();
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}
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if ($bodyHtml) {
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$email->setIsHtml(true);
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$email->setBody($bodyHtml);
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if ($bodyPlain) {
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$email->setBodyPlain($bodyPlain);
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}
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}
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else {
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$email->setIsHtml(false);
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$email->setBody($bodyPlain);
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$email->setBodyPlain($bodyPlain);
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}
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if (!$email->getBody() && $email->hasBodyPlain()) {
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$email->setBody($email->getBodyPlain());
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}
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$attachmentPartList = $this->getMessage($message)->getAllAttachmentParts();
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$inlineIds = [];
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foreach ($attachmentPartList as $attachmentPart) {
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if (!$attachmentPart instanceof MimePart) {
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continue;
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}
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/** @var Attachment $attachment */
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$attachment = $this->entityManager->getNewEntity(Attachment::ENTITY_TYPE);
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$contentType = $this->detectAttachmentContentType($attachmentPart);
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$disposition = $attachmentPart->getHeaderValue('Content-Disposition');
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/** @var ?string $filename */
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$filename = $attachmentPart->getHeaderParameter('Content-Disposition', 'filename', null);
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if ($filename === null) {
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$filename = $attachmentPart->getHeaderParameter('Content-Type', 'name', 'unnamed');
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}
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if ($contentType) {
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$contentType = strtolower($contentType);
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}
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$attachment->setName($filename);
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$attachment->setType($contentType);
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$content = '';
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/** @var StreamInterface|null $binaryContentStream */
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$binaryContentStream = $attachmentPart->getBinaryContentStream();
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if ($binaryContentStream) {
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$content = $binaryContentStream->getContents();
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}
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$contentId = $attachmentPart->getHeaderValue('Content-ID');
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if ($contentId) {
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$contentId = trim($contentId, '<>');
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}
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if ($disposition === 'inline') {
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$attachment->setRole(Attachment::ROLE_INLINE_ATTACHMENT);
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$attachment->setTargetField('body');
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}
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else {
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$disposition = 'attachment';
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$attachment->setRole(Attachment::ROLE_ATTACHMENT);
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$attachment->setTargetField('attachments');
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}
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$attachment->setContents($content);
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$this->entityManager->saveEntity($attachment);
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if ($disposition === 'attachment') {
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$email->addLinkMultipleId('attachments', $attachment->getId());
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if ($contentId) {
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$inlineIds[$contentId] = $attachment->getId();
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}
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continue;
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}
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// inline disposition
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if ($contentId) {
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$inlineIds[$contentId] = $attachment->getId();
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$inlineAttachmentList[] = $attachment;
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continue;
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}
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$email->addLinkMultipleId('attachments', $attachment->getId());
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}
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$body = $email->getBody();
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if (!empty($body)) {
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foreach ($inlineIds as $cid => $attachmentId) {
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if (str_contains($body, 'cid:' . $cid)) {
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$body = str_replace('cid:' . $cid, '?entryPoint=attachment&id=' . $attachmentId, $body);
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continue;
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}
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$email->addLinkMultipleId('attachments', $attachmentId);
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}
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$email->setBody($body);
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}
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/** @var ?MessagePart $textCalendarPart */
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$textCalendarPart =
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$this->getMessage($message)->getAllPartsByMimeType('text/calendar')[0] ??
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$this->getMessage($message)->getAllPartsByMimeType('application/ics')[0] ??
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null;
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if ($textCalendarPart && $textCalendarPart->hasContent()) {
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$email->set('icsContents', $textCalendarPart->getContent());
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}
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return $inlineAttachmentList;
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}
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private function detectAttachmentContentType(MimePart $part): ?string
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{
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$contentType = $part->getHeaderValue('Content-Type');
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if ($contentType && strtolower($contentType) !== 'application/octet-stream') {
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return $contentType;
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}
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$ext = $this->getAttachmentFilenameExtension($part);
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if (!$ext) {
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return null;
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}
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return $this->extMimeTypeMap[$ext] ?? null;
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}
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private function getAttachmentFilenameExtension(MimePart $part): ?string
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{
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/** @var ?string $filename */
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$filename = $part->getHeaderParameter('Content-Disposition', 'filename', null);
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if ($filename === null) {
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$filename = $part->getHeaderParameter('Content-Type', 'name', 'unnamed');
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}
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if (!$filename) {
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return null;
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}
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$ext = explode('.', $filename)[1] ?? null;
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if (!$ext) {
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return null;
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}
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return strtolower($ext);
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}
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}
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