Add in software files and templates

root/opt/dmarc-srg/classes/Mail/MailAttachment.php

@@ -0,0 +1,110 @@
+<?php
+
+/**
+ * dmarc-srg - A php parser, viewer and summary report generator for incoming DMARC reports.
+ * Copyright (C) 2020 Aleksey Andreev (liuch)
+ *
+ * Available at:
+ * https://github.com/liuch/dmarc-srg
+ *
+ * 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.
+ *
+ * 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/>.
+ */
+
+namespace Liuch\DmarcSrg\Mail;
+
+use Liuch\DmarcSrg\ReportFile\ReportFile;
+use Liuch\DmarcSrg\Exception\SoftException;
+
+class MailAttachment
+{
+    private $conn;
+    private $filename;
+    private $bytes;
+    private $number;
+    private $mnumber;
+    private $encoding;
+    private $stream;
+    private $mime_type;
+
+    public function __construct($conn, $params)
+    {
+        $this->conn     = $conn;
+        $this->filename = $params['filename'];
+        $this->bytes    = $params['bytes'];
+        $this->number   = $params['number'];
+        $this->mnumber  = $params['mnumber'];
+        $this->encoding = $params['encoding'];
+        $this->stream    = null;
+        $this->mime_type = null;
+    }
+
+    public function __destruct()
+    {
+        if (!is_null($this->stream) && get_resource_type($this->stream) == 'stream') {
+            fclose($this->stream);
+        }
+    }
+
+    public function mimeType()
+    {
+        if (is_null($this->mime_type)) {
+            $this->mime_type = ReportFile::getMimeType($this->filename, $this->datastream());
+        }
+        return $this->mime_type;
+    }
+
+    public function size()
+    {
+        return $this->bytes;
+    }
+
+    public function filename()
+    {
+        return $this->filename;
+    }
+
+    public function extension()
+    {
+        return pathinfo($this->filename, PATHINFO_EXTENSION);
+    }
+
+    public function datastream()
+    {
+        if (is_null($this->stream)) {
+            $this->stream = fopen('php://temp', 'r+');
+            fwrite($this->stream, $this->toString());
+        }
+        rewind($this->stream);
+        return $this->stream;
+    }
+
+    private function fetchBody()
+    {
+        return imap_fetchbody($this->conn, $this->mnumber, strval($this->number), FT_PEEK);
+    }
+
+    private function toString()
+    {
+        switch ($this->encoding) {
+            case ENC7BIT:
+            case ENC8BIT:
+            case ENCBINARY:
+                return $this->fetchBody();
+            case ENCBASE64:
+                return base64_decode($this->fetchBody());
+            case ENCQUOTEDPRINTABLE:
+                return imap_qprint($this->fetchBody());
+        }
+        throw new SoftException('Encoding failed: Unknown encoding');
+    }
+}