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<?php |
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/** |
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* @author Christoph Wurst <[email protected]> |
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* @author Christoph Wurst <[email protected]> |
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* @author Lukas Reschke <[email protected]> |
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* @author Thomas Müller <[email protected]> |
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* |
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* Mail |
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* |
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* This code is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License, version 3, |
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* as published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OCA\Mail; |
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use Horde_Imap_Client_Data_Fetch; |
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use OCP\AppFramework\Db\DoesNotExistException; |
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class Attachment { |
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/** |
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* @param \Horde_Imap_Client_Socket $conn |
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* @param \Horde_Imap_Client_Mailbox $mailBox |
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* @param int $messageId |
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* @param string $attachmentId |
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*/ |
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public function __construct($conn, $mailBox, $messageId, $attachmentId) { |
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$this->conn = $conn; |
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$this->mailBox = $mailBox; |
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$this->messageId = $messageId; |
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$this->attachmentId = $attachmentId; |
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$this->load(); |
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} |
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/** |
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* @var \Horde_Imap_Client_Socket |
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*/ |
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private $conn; |
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/** |
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* @var \Horde_Imap_Client_Mailbox |
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*/ |
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private $mailBox; |
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private $messageId; |
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private $attachmentId; |
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/** |
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* @var \Horde_Mime_Part |
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*/ |
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private $mimePart; |
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private function load() { |
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$headers = []; |
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$fetch_query = new \Horde_Imap_Client_Fetch_Query(); |
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$fetch_query->bodyPart($this->attachmentId); |
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$fetch_query->mimeHeader($this->attachmentId); |
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$headers = array_merge($headers, [ |
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'importance', |
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'list-post', |
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'x-priority' |
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]); |
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$headers[] = 'content-type'; |
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$fetch_query->headers('imp', $headers, [ |
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'cache' => true |
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]); |
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// $list is an array of Horde_Imap_Client_Data_Fetch objects. |
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$ids = new \Horde_Imap_Client_Ids($this->messageId); |
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$headers = $this->conn->fetch($this->mailBox, $fetch_query, ['ids' => $ids]); |
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/** @var $fetch Horde_Imap_Client_Data_Fetch */ |
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if (!isset($headers[$this->messageId])) { |
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throw new DoesNotExistException('Unable to load the attachment.'); |
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} |
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$fetch = $headers[$this->messageId]; |
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$mimeHeaders = $fetch->getMimeHeader($this->attachmentId, Horde_Imap_Client_Data_Fetch::HEADER_PARSE); |
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$this->mimePart = new \Horde_Mime_Part(); |
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// To prevent potential problems with the SOP we serve all files with the |
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// MIME type "application/octet-stream" |
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$this->mimePart->setType('application/octet-stream'); |
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// Serve all files with a content-disposition of "attachment" to prevent Cross-Site Scripting |
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$this->mimePart->setDisposition('attachment'); |
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// Extract headers from part |
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$contentDisposition = $mimeHeaders->getValue('content-disposition', \Horde_Mime_Headers::VALUE_PARAMS); |
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if (!is_null($contentDisposition)) { |
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$vars = ['filename']; |
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foreach ($contentDisposition as $key => $val) { |
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if(in_array($key, $vars)) { |
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$this->mimePart->setDispositionParameter($key, $val); |
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} |
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} |
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} else { |
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$contentDisposition = $mimeHeaders->getValue('content-type', \Horde_Mime_Headers::VALUE_PARAMS); |
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$vars = ['name']; |
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foreach ($contentDisposition as $key => $val) { |
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if(in_array($key, $vars)) { |
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$this->mimePart->setContentTypeParameter($key, $val); |
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} |
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} |
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} |
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/* Content transfer encoding. */ |
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if ($tmp = $mimeHeaders->getValue('content-transfer-encoding')) { |
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$this->mimePart->setTransferEncoding($tmp); |
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} |
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$body = $fetch->getBodyPart($this->attachmentId); |
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$this->mimePart->setContents($body); |
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} |
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/** |
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* @return string |
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*/ |
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public function getContents() { |
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return $this->mimePart->getContents(); |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() { |
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return $this->mimePart->getName(); |
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} |
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/** |
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* @return string |
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*/ |
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public function getType() { |
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return $this->mimePart->getType(); |
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} |
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} |
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