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Dir : ~/usr/share/psa-horde/imp/lib/Mime/Viewer/
View File Name : Related.php

<?php
/**
 * Copyright 2002-2017 Horde LLC (http://www.horde.org/)
 *
 * See the enclosed file COPYING for license information (GPL). If you
 * did not receive this file, see http://www.horde.org/licenses/gpl.
 *
 * @category  Horde
 * @copyright 2002-2017 Horde LLC
 * @license   http://www.horde.org/licenses/gpl GPL
 * @package   IMP
 */

/**
 * Renderer for multipart/related messages (RFC 2387).
 *
 * @author    Michael Slusarz <slusarz@horde.org>
 * @category  Horde
 * @copyright 2002-2017 Horde LLC
 * @license   http://www.horde.org/licenses/gpl GPL
 * @package   IMP
 */
class IMP_Mime_Viewer_Related extends Horde_Mime_Viewer_Base
{
    /**
     */
    protected $_capability = array(
        'full' => true,
        'info' => false,
        'inline' => true,
        'raw' => false
    );

    /**
     */
    protected $_metadata = array(
        'compressed' => false,
        'embedded' => false,
        'forceinline' => true
    );

    /**
     * The multipart/related info object.
     *
     * @var Horde_Mime_Related
     */
    protected $_related;

    /**
     */
    protected function _render()
    {
        return $this->_IMPrender(false);
    }

    /**
     */
    protected function _renderInline()
    {
        return $this->_IMPrender(true);
    }

    /**
     * Render out the currently set contents.
     *
     * @param boolean $inline  Are we viewing inline?
     *
     * @return array  See self::render().
     */
    protected function _IMPrender($inline)
    {
        $related_id = $this->_mimepart->getMimeId();
        $used = array($related_id);

        if (!($id = $this->_init($inline))) {
            return array();
        }

        $render = $this->getConfigParam('imp_contents')->renderMIMEPart($id, $inline ? IMP_Contents::RENDER_INLINE : IMP_Contents::RENDER_FULL);

        if (!$inline) {
            foreach (array_keys($render) as $key) {
                if (!is_null($render[$key])) {
                    return array($related_id => $render[$key]);
                }
            }
            return null;
        }

        $data_id = null;
        $ret = array_fill_keys(array_keys($this->_mimepart->contentTypeMap()), null);

        foreach (array_keys($render) as $val) {
            $ret[$val] = $render[$val];
            if ($ret[$val]) {
                $data_id = $val;
            }
        }

        if (!is_null($data_id)) {
            $this->_mimepart->setMetadata('viewable_part', $data_id);

            /* We want the inline display to show multipart/related vs. the
             * viewable MIME part.  This is because a multipart/related part
             * is not downloadable and clicking on the MIME part may not
             * produce the desired result in the full display (i.e. HTML parts
             * with related images). */
            if ($data_id !== $related_id) {
                $ret[$related_id] = $ret[$data_id];
                $ret[$data_id] = null;
            }
        }

        /* Fix for broken messages that don't refer to a related CID part
         * within the base part. */
        if ($cids_used = $this->_mimepart->getMetadata('related_cids_used')) {
            $used = array_merge($used, $cids_used);
        }

        foreach (array_diff(array_keys($ret), $used) as $val) {
            if (($val !== $id) && !Horde_Mime::isChild($id, $val)) {
                $summary = $this->getConfigParam('imp_contents')->getSummary(
                    $val,
                    IMP_Contents::SUMMARY_SIZE |
                    IMP_Contents::SUMMARY_ICON |
                    IMP_Contents::SUMMARY_DESCRIP_LINK |
                    IMP_Contents::SUMMARY_DOWNLOAD
                );

                $status = new IMP_Mime_Status(array(
                    _("This part contains an attachment that can not be displayed within this part:"),
                    implode(' ', array(
                        $summary['icon'],
                        $summary['description'],
                        $summary['size'],
                        $summary['download']
                    ))
                ));
                $status->action(IMP_Mime_Status::WARNING);

                if (isset($ret[$related_id]['status'])) {
                    if (!is_array($ret[$related_id]['status'])) {
                        $ret[$related_id]['status'] = array($ret[$related_id]['status']);
                    }
                } else {
                    $ret[$related_id]['status'] = array();
                }
                $ret[$related_id]['status'][] = $status;
            }
        }

        return $ret;
    }

    /**
     * Initialization: determine start MIME ID.
     *
     * @param boolean $inline  Are we viewing inline?
     *
     * @return string  The start MIME ID, or null if the part is not viewable.
     */
    protected function _init($inline)
    {
        if (!isset($this->_related)) {
            $this->_related = new Horde_Mime_Related($this->_mimepart);

            /* Set related information in message metadata. */
            $this->_mimepart->setMetadata('related_ob', $this->_related);
        }

        $start_id = $this->_related->startId();

        /* Only display if the start part (normally text/html) can be
         * displayed inline -OR- we are viewing this part as an attachment. */
        return ($inline && !is_null($start_id) && !$this->getConfigParam('imp_contents')->canDisplay($start_id, IMP_Contents::RENDER_INLINE))
            ? null
            : $start_id;
    }

    /**
     */
    public function canRender($mode)
    {
        return (($mode == 'inline') && !$this->_init(true))
            ? false
            : parent::canRender($mode);
    }

}