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<?php |
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/* |
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* File: Structure.php |
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* Category: - |
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* Author: M.Goldenbaum |
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* Created: 17.09.20 20:38 |
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* Updated: - |
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* |
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* Description: |
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* - |
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*/ |
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namespace Webklex\PHPIMAP; |
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use Webklex\PHPIMAP\Exceptions\InvalidMessageDateException; |
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use Webklex\PHPIMAP\Exceptions\MessageContentFetchingException; |
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/** |
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* Class Structure |
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* |
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* @package Webklex\PHPIMAP |
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*/ |
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class Structure { |
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/** |
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* Raw structure |
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* |
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* @var string $raw |
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*/ |
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public $raw = ""; |
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/** |
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* @var Header $header |
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*/ |
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private $header = null; |
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/** |
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* Message type (if multipart or not) |
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* |
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* @var int $type |
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*/ |
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public $type = IMAP::MESSAGE_TYPE_TEXT; |
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/** |
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* All available parts |
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* |
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* @var Part[] $parts |
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*/ |
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public $parts = []; |
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/** |
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* Config holder |
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* |
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* @var array $config |
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*/ |
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protected $config = []; |
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/** |
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* Structure constructor. |
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* @param $raw_structure |
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* @param Header $header |
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* |
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* @throws MessageContentFetchingException |
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* @throws InvalidMessageDateException |
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*/ |
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public function __construct($raw_structure, Header $header) { |
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$this->raw = $raw_structure; |
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$this->header = $header; |
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$this->config = ClientManager::get('options'); |
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$this->parse(); |
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} |
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/** |
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* Parse the given raw structure |
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* |
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* @throws MessageContentFetchingException |
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* @throws InvalidMessageDateException |
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*/ |
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protected function parse(){ |
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$this->findContentType(); |
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$this->parts = $this->find_parts(); |
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} |
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/** |
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* Determine the message content type |
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*/ |
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public function findContentType(){ |
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$content_type = $this->header->get("content_type"); |
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$content_type = (is_array($content_type)) ? implode(' ', $content_type) : $content_type; |
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if($content_type && stripos($content_type, 'multipart') === 0) { |
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$this->type = IMAP::MESSAGE_TYPE_MULTIPART; |
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}else{ |
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$this->type = IMAP::MESSAGE_TYPE_TEXT; |
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} |
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} |
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/** |
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* Find all available headers and return the left over body segment |
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* @var string $context |
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* @var integer $part_number |
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* |
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* @return Part[] |
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* @throws InvalidMessageDateException |
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*/ |
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private function parsePart(string $context, int $part_number = 0): array { |
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$body = $context; |
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while (($pos = strpos($body, "\r\n")) > 0) { |
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$body = substr($body, $pos + 2); |
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} |
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$headers = substr($context, 0, strlen($body) * -1); |
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$body = substr($body, 0, -2); |
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$headers = new Header($headers); |
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if (($boundary = $headers->getBoundary()) !== null) { |
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return $this->detectParts($boundary, $body, $part_number); |
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} |
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return [new Part($body, $headers, $part_number)]; |
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} |
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/** |
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* @param string $boundary |
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* @param string $context |
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* @param int $part_number |
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* |
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* @return array |
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* @throws InvalidMessageDateException |
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*/ |
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private function detectParts(string $boundary, string $context, int $part_number = 0): array { |
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$base_parts = explode( $boundary, $context); |
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$final_parts = []; |
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foreach($base_parts as $ctx) { |
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$ctx = substr($ctx, 2); |
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if ($ctx !== "--" && $ctx != "") { |
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$parts = $this->parsePart($ctx, $part_number); |
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foreach ($parts as $part) { |
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$final_parts[] = $part; |
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$part_number = $part->part_number; |
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} |
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$part_number++; |
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} |
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} |
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return $final_parts; |
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} |
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/** |
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* Find all available parts |
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* |
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* @return array |
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* @throws MessageContentFetchingException |
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* @throws InvalidMessageDateException |
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*/ |
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public function find_parts(): array { |
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if($this->type === IMAP::MESSAGE_TYPE_MULTIPART) { |
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if (($boundary = $this->header->getBoundary()) === null) { |
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throw new MessageContentFetchingException("no content found", 0); |
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} |
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return $this->detectParts($boundary, $this->raw); |
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} |
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return [new Part($this->raw, $this->header)]; |
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} |
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/** |
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* Try to find a boundary if possible |
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* |
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* @return string|null |
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* @Depricated since version 2.4.4 |
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*/ |
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public function getBoundary(){ |
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return $this->header->getBoundary(); |
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} |
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} |
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Webklex /
php-imap
