firefly-iii/app/Models/Attachment.php

<?php
/**
 * Attachment.php
 * Copyright (C) 2016 thegrumpydictator@gmail.com
 *
 * This software may be modified and distributed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International License.
 *
 * See the LICENSE file for details.
 */

declare(strict_types = 1);

namespace FireflyIII\Models;

use Crypt;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\MorphTo;
use Illuminate\Database\Eloquent\SoftDeletes;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class Attachment extends Model
{
    use SoftDeletes;

    protected $fillable = ['attachable_id', 'attachable_type', 'user_id', 'md5', 'filename', 'mime', 'title', 'notes', 'description', 'size', 'uploaded'];

    /**
     * @param Attachment $value
     *
     * @return Attachment
     */
    public static function routeBinder(Attachment $value)
    {
        if (auth()->check()) {

            if ($value->user_id == auth()->user()->id) {
                return $value;
            }
        }
        throw new NotFoundHttpException;
    }

    /**
     * Get all of the owning imageable models.
     *
     * @return MorphTo
     */
    public function attachable(): MorphTo
    {
        return $this->morphTo();
    }

    /**
     * Returns the expected filename for this attachment.
     *
     * @return string
     */
    public function fileName(): string
    {
        return sprintf('at-%s.data', strval($this->id));
    }

    /**
     * @param $value
     *
     * @return null|string
     */
    public function getDescriptionAttribute($value)
    {
        if (is_null($value) || strlen($value) === 0) {
            return null;
        }

        return Crypt::decrypt($value);
    }

    /**
     * @param $value
     *
     * @return null|string
     */
    public function getFilenameAttribute($value)
    {
        if (is_null($value) || strlen($value) === 0) {
            return null;
        }

        return Crypt::decrypt($value);
    }

    /**
     * @param $value
     *
     * @return null|string
     */
    public function getMimeAttribute($value)
    {
        if (is_null($value) || strlen($value) === 0) {
            return null;
        }

        return Crypt::decrypt($value);
    }

    /**
     *
     * @param $value
     *
     * @return null|string
     */
    public function getNotesAttribute($value)
    {
        if (is_null($value) || strlen($value) === 0) {
            return null;
        }

        return Crypt::decrypt($value);
    }

    /**
     *
     * @param $value
     *
     * @return null|string
     */
    public function getTitleAttribute($value)
    {
        if (is_null($value) || strlen($value) === 0) {
            return null;
        }

        return Crypt::decrypt($value);
    }

    /**
     * @param string $value
     */
    public function setDescriptionAttribute(string $value)
    {
        $this->attributes['description'] = Crypt::encrypt($value);
    }

    /**
     * @param string $value
     */
    public function setFilenameAttribute(string $value)
    {
        $this->attributes['filename'] = Crypt::encrypt($value);
    }

    /**
     * @param string $value
     */
    public function setMimeAttribute(string $value)
    {
        $this->attributes['mime'] = Crypt::encrypt($value);
    }

    /**
     * @param string $value
     */
    public function setNotesAttribute(string $value)
    {
        $this->attributes['notes'] = Crypt::encrypt($value);
    }

    /**
     * @param string $value
     */
    public function setTitleAttribute(string $value)
    {
        $this->attributes['title'] = Crypt::encrypt($value);
    }

    /**
     * @return BelongsTo
     */
    public function user(): BelongsTo
    {
        return $this->belongsTo('FireflyIII\User');
    }

}