forked from Wavyzz/dolibarr
175 lines
4.2 KiB
PHP
175 lines
4.2 KiB
PHP
<?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) : $content_type;
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if(stripos($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 $part_number
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*
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* @return Part[]
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* @throws InvalidMessageDateException
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*/
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private function parsePart($context, $part_number = 0){
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$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 $part_number
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*
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* @return array
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* @throws InvalidMessageDateException
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*/
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private function detectParts($boundary, $context, $part_number = 0){
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$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 $final_parts;
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}
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/**
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* Find all available parts
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*
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* @return array
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* @throws MessageContentFetchingException
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* @throws InvalidMessageDateException
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*/
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public function find_parts(){
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if($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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