rdx\imap\IMAPMessagePart

Complexity

Total Complexity

29

Size/Duplication

Total Lines	132
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	4

Importance

Changes

0

13 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	8	1
B	parts()	0	22	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	headerString()	0	8	2
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 ( $this->parts === null ) {
			$this->parts = [];

			if ( !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 string */
	public function headerString() {
		$x = explode("\r\n\r\n", $this->content());
		if ( count($x) > 1 ) {
			return trim($x[0]);
		}

		return '';
	}

	/** @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 strtoupper($this->subtype);
	}

}