111 lines
3.0 KiB
PHP
111 lines
3.0 KiB
PHP
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<?php
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/**
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* dmarc-srg - A php parser, viewer and summary report generator for incoming DMARC reports.
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* Copyright (C) 2020 Aleksey Andreev (liuch)
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*
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* Available at:
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* https://github.com/liuch/dmarc-srg
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, either version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace Liuch\DmarcSrg\Mail;
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use Liuch\DmarcSrg\ReportFile\ReportFile;
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use Liuch\DmarcSrg\Exception\SoftException;
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class MailAttachment
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{
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private $conn;
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private $filename;
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private $bytes;
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private $number;
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private $mnumber;
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private $encoding;
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private $stream;
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private $mime_type;
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public function __construct($conn, $params)
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{
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$this->conn = $conn;
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$this->filename = $params['filename'];
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$this->bytes = $params['bytes'];
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$this->number = $params['number'];
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$this->mnumber = $params['mnumber'];
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$this->encoding = $params['encoding'];
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$this->stream = null;
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$this->mime_type = null;
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}
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public function __destruct()
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{
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if (!is_null($this->stream) && get_resource_type($this->stream) == 'stream') {
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fclose($this->stream);
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}
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}
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public function mimeType()
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{
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if (is_null($this->mime_type)) {
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$this->mime_type = ReportFile::getMimeType($this->filename, $this->datastream());
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}
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return $this->mime_type;
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}
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public function size()
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{
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return $this->bytes;
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}
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public function filename()
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{
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return $this->filename;
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}
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public function extension()
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{
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return pathinfo($this->filename, PATHINFO_EXTENSION);
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}
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public function datastream()
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{
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if (is_null($this->stream)) {
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$this->stream = fopen('php://temp', 'r+');
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fwrite($this->stream, $this->toString());
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}
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rewind($this->stream);
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return $this->stream;
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}
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private function fetchBody()
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{
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return imap_fetchbody($this->conn, $this->mnumber, strval($this->number), FT_PEEK);
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}
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private function toString()
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{
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switch ($this->encoding) {
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case ENC7BIT:
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case ENC8BIT:
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case ENCBINARY:
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return $this->fetchBody();
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case ENCBASE64:
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return base64_decode($this->fetchBody());
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case ENCQUOTEDPRINTABLE:
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return imap_qprint($this->fetchBody());
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}
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throw new SoftException('Encoding failed: Unknown encoding');
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}
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}
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