rdx\imap\IMAPMessagePart

Complexity

Total Complexity

27

Size/Duplication

Total Lines	118
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	4

Importance

Changes

0

12 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	8	1
B	parts()	0	18	7
A	structure()	0	3	1
A	filename()	0	3	2
A	safeFilename()	0	5	2
A	content()	0	6	1
A	decodedContent()	0	15	6
A	saveAttachment()	0	10	3
A	message()	0	3	1
A	mailbox()	0	3	1
A	section()	0	3	1
A	subtype()	0	3	1

<?php

namespace rdx\imap;

class IMAPMessagePart extends IMAPMessageContent implements IMAPMessagePartInterface {

	/** @var int[] */
	protected $section = [];

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

	/** @var IMAPMessage */
	protected $message;

	/** @var object[] */
	protected $skippedParts = [];

	public function __construct( IMAPMessage $message, $structure, array $section ) {
		$this->message = $message;
		$this->structure = $structure;
		$this->section = $section;
		$this->subtype = strtoupper($structure->subtype);

		$this->parts();
	}

	/** @return IMAPMessagePart[] */
	public function parts() {
		if ( empty($this->parts) && !empty($this->structure()->parts) ) {
			$parts = $this->structure()->parts;
			while ( count($parts) == 1 && empty($parts[0]->bytes) && !empty($parts[0]->parts) ) {
				$this->skippedParts[] = $parts[0];
				$parts = $parts[0]->parts;
			}

			foreach ( $parts as $n => $part ) {
				$this->parts[] = $this->message()->createMessagePart(
					$part,
					array_merge($this->section(), [$n + 1])
				);
			}
		}

		return $this->parts;
	}

	/** @return object */
	public function structure() {
		return $this->structure;
	}

	/** @return string */
	public function filename() {
		return $this->parameter('filename') ?: $this->parameter('name');
	}

	/** @return string */
	public function safeFilename() {
		if ($filename = $this->filename()) {
			return trim(preg_replace('#_+#', '_', preg_replace('#[^a-z0-9\-_\.]+#i', '', $filename)), '_');
		}
	}

	/** @return string */
	public function content() {
		return $this->message()->mailbox()->imap()->fetchbody(
			$this->message()->msgNumber(),
			implode('.', $this->section())
		);
	}

	/** @return string */
	public function decodedContent() {
		if ($raw = $this->content()) {
			switch ($this->parameter('encoding')) {
				case ENC7BIT:
				case ENC8BIT:
				case ENCQUOTEDPRINTABLE:
					return quoted_printable_decode($raw);

				case ENCBASE64:
					return base64_decode($raw);
			}

			return $raw;
		}
	}

	/** @return bool */
	public function saveAttachment($dir, $filenameOverride = null) {
		if ($filename = $this->safeFilename()) {
			$filepath = realpath($dir) . '/' . ($filenameOverride ?? $filename);
			if (file_put_contents($filepath, $this->decodedContent())) {
				return true;
			}
		}

		return false;
	}

	/** @return IMAPMessage */
	public function message() {
		return $this->message;
	}

	/** @return IMAPMailbox */
	public function mailbox() {
		return $this->message()->mailbox();
	}

	/** @return int[] */
	public function section() {
		return $this->section;
	}

	/** @return string */
	public function subtype() {
		return $this->subtype;
	}

}