Initial commit

application/Espo/Tools/Attachment/AccessChecker.php

@@ -0,0 +1,125 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Espo\Core\Acl;
+use Espo\Core\Acl\Table;
+use Espo\Core\Exceptions\Forbidden;
+use Espo\Core\Utils\Metadata;
+use Espo\Entities\Attachment;
+use Espo\Entities\Settings;
+use Espo\Entities\User;
+use Espo\Core\ORM\Type\FieldType;
+
+class AccessChecker
+{
+    /** @var string[] */
+    private $adminOnlyHavingInlineAttachmentsEntityTypeList = ['TemplateManager'];
+
+    /** @var string[] */
+    private $attachmentFieldTypeList = [
+        FieldType::FILE,
+        FieldType::IMAGE,
+        FieldType::ATTACHMENT_MULTIPLE,
+    ];
+
+    /** @var string[] */
+    private $inlineAttachmentFieldTypeList = [
+        FieldType::WYSIWYG,
+    ];
+
+    /** @var string[] */
+    private $allowedRoleList = [
+        Attachment::ROLE_ATTACHMENT,
+        Attachment::ROLE_INLINE_ATTACHMENT,
+    ];
+
+    public function __construct(
+        private User $user,
+        private Acl $acl,
+        private Metadata $metadata
+    ) {}
+
+    /**
+     * Check access to a field and role allowance.
+     *
+     * @throws Forbidden
+     */
+    public function check(FieldData $fieldData, string $role = Attachment::ROLE_ATTACHMENT): void
+    {
+        if (!in_array($role, $this->allowedRoleList)) {
+            throw new Forbidden("Role not allowed.");
+        }
+
+        $relatedEntityType = $fieldData->getParentType() ?? $fieldData->getRelatedType();
+        $field = $fieldData->getField();
+
+        if (!$relatedEntityType) {
+            throw new Forbidden();
+        }
+
+        if (
+            $this->user->isAdmin() &&
+            $role === Attachment::ROLE_INLINE_ATTACHMENT &&
+            in_array($relatedEntityType, $this->adminOnlyHavingInlineAttachmentsEntityTypeList)
+        ) {
+            return;
+        }
+
+        $fieldType = $this->metadata->get(['entityDefs', $relatedEntityType, 'fields', $field, 'type']);
+
+        if (!$fieldType) {
+            throw new Forbidden("Field '$field' does not exist.");
+        }
+
+        $fieldTypeList = $role === Attachment::ROLE_INLINE_ATTACHMENT ?
+            $this->inlineAttachmentFieldTypeList :
+            $this->attachmentFieldTypeList;
+
+        if (!in_array($fieldType, $fieldTypeList)) {
+            throw new Forbidden("Field type '$fieldType' is not allowed for $role.");
+        }
+
+        if ($this->user->isAdmin() && $relatedEntityType === Settings::ENTITY_TYPE) {
+            return;
+        }
+
+        if (
+            !$this->acl->checkScope($relatedEntityType, Table::ACTION_CREATE) &&
+            !$this->acl->checkScope($relatedEntityType, Table::ACTION_EDIT)
+        ) {
+            throw new Forbidden("No access to " . $relatedEntityType . ".");
+        }
+
+        if (!$this->acl->checkField($relatedEntityType, $field, Table::ACTION_EDIT)) {
+            throw new Forbidden("No access to field '$field'.");
+        }
+    }
+}

application/Espo/Tools/Attachment/Api/GetFile.php

@@ -0,0 +1,67 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment\Api;
+
+use Espo\Core\Api\Action as ActionAlias;
+use Espo\Core\Api\Request;
+use Espo\Core\Api\Response;
+use Espo\Core\Api\ResponseComposer;
+use Espo\Core\Exceptions\BadRequest;
+use Espo\Tools\Attachment\Service;
+
+/**
+ * Download a file.
+ */
+class GetFile implements ActionAlias
+{
+    public function __construct(private Service $service) {}
+
+    public function process(Request $request): Response
+    {
+        $id = $request->getRouteParam('id');
+
+        if (!$id) {
+            throw new BadRequest();
+        }
+
+        $fileData = $this->service->getFileData($id);
+
+        $response = ResponseComposer::empty()
+            ->setHeader('Content-Disposition', 'attachment; filename="' . $fileData->getName() . '"')
+            ->setHeader('Content-Length', (string) $fileData->getSize())
+            ->setBody($fileData->getStream());
+
+        if ($fileData->getType()) {
+            $response->setHeader('Content-Type', $fileData->getType());
+        }
+
+        return $response;
+    }
+}

application/Espo/Tools/Attachment/Api/PostChunk.php

@@ -0,0 +1,59 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment\Api;
+
+use Espo\Core\Api\Action;
+use Espo\Core\Api\Request;
+use Espo\Core\Api\Response;
+use Espo\Core\Api\ResponseComposer;
+use Espo\Core\Exceptions\BadRequest;
+use Espo\Tools\Attachment\UploadService;
+
+/**
+ * Uploads attachment chunks.
+ */
+class PostChunk implements Action
+{
+    public function __construct(private UploadService $uploadService) {}
+
+    public function process(Request $request): Response
+    {
+        $id = $request->getRouteParam('id');
+        $body = $request->getBodyContents();
+
+        if (!$id || !$body) {
+            throw new BadRequest();
+        }
+
+        $this->uploadService->uploadChunk($id, $body);
+
+        return ResponseComposer::json(true);
+    }
+}

application/Espo/Tools/Attachment/Api/PostCopy.php

@@ -0,0 +1,76 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment\Api;
+
+use Espo\Core\Api\Action;
+use Espo\Core\Api\Request;
+use Espo\Core\Api\Response;
+use Espo\Core\Api\ResponseComposer;
+use Espo\Core\Exceptions\BadRequest;
+use Espo\Core\Exceptions\Error;
+use Espo\Tools\Attachment\FieldData;
+use Espo\Tools\Attachment\Service;
+
+/**
+ * Copies attachments.
+ */
+class PostCopy implements Action
+{
+    public function __construct(private Service $service) {}
+
+    public function process(Request $request): Response
+    {
+        $id = $request->getRouteParam('id');
+
+        if (!$id) {
+            throw new BadRequest();
+        }
+
+        $data = $request->getParsedBody();
+
+        $field = $data->field ?? null;
+        $parentType = $data->parentType ?? null;
+        $relatedType = $data->relatedType ?? null;
+
+        if (!$field) {
+            throw new BadRequest("No `field`.");
+        }
+
+        try {
+            $fieldData = new FieldData($field, $parentType, $relatedType);
+        } catch (Error $e) {
+            throw new BadRequest($e->getMessage());
+        }
+
+        $attachment = $this->service->copy($id, $fieldData);
+
+        return ResponseComposer::json($attachment->getValueMap());
+    }
+}

application/Espo/Tools/Attachment/Api/PostFromImageUrl.php

@@ -0,0 +1,71 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment\Api;
+
+use Espo\Core\Api\Action;
+use Espo\Core\Api\Request;
+use Espo\Core\Api\Response;
+use Espo\Core\Api\ResponseComposer;
+use Espo\Core\Exceptions\BadRequest;
+use Espo\Core\Exceptions\Error;
+use Espo\Tools\Attachment\FieldData;
+use Espo\Tools\Attachment\UploadUrlService;
+
+/**
+ * Crates attachments from image URLs.
+ */
+class PostFromImageUrl implements Action
+{
+    public function __construct(private UploadUrlService $uploadUrlService) {}
+
+    public function process(Request $request): Response
+    {
+        $data = $request->getParsedBody();
+
+        $url = $data->url ?? null;
+        $field = $data->field ?? null;
+        $parentType = $data->parentType ?? null;
+        $relatedType = $data->relatedType ?? null;
+
+        if (!$url || !$field) {
+            throw new BadRequest("No `url` or `field`.");
+        }
+
+        try {
+            $fieldData = new FieldData($field, $parentType, $relatedType);
+        } catch (Error $e) {
+            throw new BadRequest($e->getMessage());
+        }
+
+        $attachment = $this->uploadUrlService->uploadImage($url, $fieldData);
+
+        return ResponseComposer::json($attachment->getValueMap());
+    }
+}

application/Espo/Tools/Attachment/Checker.php

@@ -0,0 +1,161 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Espo\Core\Exceptions\Forbidden;
+use Espo\Core\Exceptions\ForbiddenSilent;
+use Espo\Core\Utils\File\MimeType;
+use Espo\Core\Utils\Metadata;
+use Espo\Entities\Attachment;
+use Espo\Core\ORM\Type\FieldType;
+
+class Checker
+{
+    public function __construct(
+        private Metadata $metadata,
+        private MimeType $mimeType,
+        private DetailsObtainer $detailsObtainer
+    ) {}
+
+    /**
+     * Check a mine-type for allowance.
+     *
+     * @throws Forbidden
+     */
+    public function checkType(Attachment $attachment): void
+    {
+        $field = $attachment->getTargetField();
+        $entityType = $attachment->getParentType() ?? $attachment->getRelatedType();
+
+        if (!$field || !$entityType) {
+            return;
+        }
+
+        if (
+            $this->detailsObtainer->getFieldType($attachment) === FieldType::IMAGE ||
+            $attachment->getRole() === Attachment::ROLE_INLINE_ATTACHMENT
+        ) {
+            $this->checkTypeImage($attachment);
+
+            return;
+        }
+
+        $extension = strtolower(DetailsObtainer::getFileExtension($attachment) ?? '');
+
+        $mimeType = $this->mimeType->getMimeTypeByExtension($extension) ??
+            $attachment->getType();
+
+        /** @var string[] $accept */
+        $accept = $this->metadata->get(['entityDefs', $entityType, 'fields', $field, 'accept']) ?? [];
+
+        if ($accept === []) {
+            return;
+        }
+
+        $found = false;
+
+        foreach ($accept as $token) {
+            if (strtolower($token) === '.' . $extension) {
+                $found = true;
+
+                break;
+            }
+
+            if ($mimeType && MimeType::matchMimeTypeToAcceptToken($mimeType, $token)) {
+                $found = true;
+
+                break;
+            }
+        }
+
+        if (!$found) {
+            throw new ForbiddenSilent("Not allowed file type.");
+        }
+    }
+
+    /**
+     * Check a mime-time for allowance for an image.
+     *
+     * @throws Forbidden
+     */
+    public function checkTypeImage(Attachment $attachment, ?string $filePath = null): void
+    {
+        $extension = DetailsObtainer::getFileExtension($attachment) ?? '';
+
+        $mimeType = $this->mimeType->getMimeTypeByExtension($extension);
+
+        /** @var string[] $imageTypeList */
+        $imageTypeList = $this->metadata->get(['app', 'image', 'allowedFileTypeList']) ?? [];
+
+        if (!in_array($mimeType, $imageTypeList)) {
+            throw new ForbiddenSilent("Not allowed file type.");
+        }
+
+        $setMimeType = $attachment->getType();
+
+        if (strtolower($setMimeType ?? '') !== $mimeType) {
+            throw new ForbiddenSilent("Passed type does not correspond to extension.");
+        }
+
+        $this->checkDetectedMimeType($attachment, $filePath);
+    }
+
+    /**
+     * @throws Forbidden
+     */
+    private function checkDetectedMimeType(Attachment $attachment, ?string $filePath = null): void
+    {
+        // ext-fileinfo required, otherwise bypass.
+        if (!class_exists('\finfo') || !defined('FILEINFO_MIME_TYPE')) {
+            return;
+        }
+
+        /** @var ?string $contents */
+        $contents = $attachment->get('contents');
+
+        if (!$contents && !$filePath) {
+            return;
+        }
+
+        $extension = DetailsObtainer::getFileExtension($attachment) ?? '';
+
+        $mimeTypeList = $this->mimeType->getMimeTypeListByExtension($extension);
+
+        $fileInfo = new \finfo(FILEINFO_MIME_TYPE);
+
+        $detectedMimeType = $filePath ?
+            $fileInfo->file($filePath) :
+            $fileInfo->buffer($contents);
+
+        if (!in_array($detectedMimeType, $mimeTypeList)) {
+            throw new ForbiddenSilent("Detected mime type does not correspond to extension.");
+        }
+    }
+}

application/Espo/Tools/Attachment/DetailsObtainer.php

@@ -0,0 +1,99 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Espo\Core\Utils\Config;
+use Espo\Core\Utils\Metadata;
+use Espo\Entities\Attachment;
+
+class DetailsObtainer
+{
+    private Metadata $metadata;
+    private Config $config;
+
+    public function __construct(
+        Metadata $metadata,
+        Config $config
+    ) {
+        $this->metadata = $metadata;
+        $this->config = $config;
+    }
+
+    /**
+     * Get a file extension.
+     */
+    public static function getFileExtension(Attachment $attachment): ?string
+    {
+        $name = $attachment->getName() ?? '';
+
+        return array_slice(explode('.', $name), -1)[0] ?? null;
+    }
+
+    /**
+     * Get an upload max size allowed for an attachment (depending on a field it's related to).
+     *
+     * @return int A size in bytes.
+     */
+    public function getUploadMaxSize(Attachment $attachment): int
+    {
+        if ($attachment->getRole() === Attachment::ROLE_INLINE_ATTACHMENT) {
+            return $this->config->get('inlineAttachmentUploadMaxSize') * 1024 * 1024;
+        }
+
+        $field = $attachment->getTargetField();
+        $parentType = $attachment->getParentType() ?? $attachment->getRelatedType();
+
+        if ($field && $parentType) {
+            $maxSize = ($this->metadata
+                ->get(['entityDefs', $parentType, 'fields', $field, 'maxFileSize']) ?? 0) * 1024 * 1024;
+
+            if ($maxSize) {
+                return $maxSize;
+            }
+        }
+
+        return (int) $this->config->get('attachmentUploadMaxSize', 0) * 1024 * 1024;
+    }
+
+    /**
+     * Get a field type (an attachment if related to another record through the field).
+     */
+    public function getFieldType(Attachment $attachment): ?string
+    {
+        $field = $attachment->getTargetField();
+        $entityType = $attachment->getParentType() ?? $attachment->getRelatedType();
+
+        if (!$field || !$entityType) {
+            return null;
+        }
+
+        return $this->metadata->get(['entityDefs', $entityType, 'fields', $field, 'type']);
+    }
+}

application/Espo/Tools/Attachment/FieldData.php

@@ -0,0 +1,74 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Espo\Core\Exceptions\Error;
+
+/**
+ * Immutable.
+ */
+class FieldData
+{
+    private string $field;
+    private ?string $parentType;
+    private ?string $relatedType;
+
+    /**
+     * @throws Error
+     */
+    public function __construct(
+        string $field,
+        ?string $parentType,
+        ?string $relatedType
+    ) {
+        $this->field = $field;
+        $this->parentType = $parentType;
+        $this->relatedType = $relatedType;
+
+        if (!$parentType && !$relatedType) {
+            throw new Error("No parentType and relatedType.");
+        }
+    }
+
+    public function getField(): string
+    {
+        return $this->field;
+    }
+
+    public function getParentType(): ?string
+    {
+        return $this->parentType;
+    }
+
+    public function getRelatedType(): ?string
+    {
+        return $this->relatedType;
+    }
+}

application/Espo/Tools/Attachment/FileData.php

@@ -0,0 +1,75 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Immutable.
+ */
+class FileData
+{
+    private ?string $name;
+    private ?string $type;
+    private StreamInterface $stream;
+    private int $size;
+
+    public function __construct(
+        ?string $name,
+        ?string $type,
+        StreamInterface $stream,
+        int $size
+    ) {
+        $this->name = $name;
+        $this->type = $type;
+        $this->stream = $stream;
+        $this->size = $size;
+    }
+
+    public function getName(): ?string
+    {
+        return $this->name;
+    }
+
+    public function getType(): ?string
+    {
+        return $this->type;
+    }
+
+    public function getStream(): StreamInterface
+    {
+        return $this->stream;
+    }
+
+    public function getSize(): int
+    {
+        return $this->size;
+    }
+}

application/Espo/Tools/Attachment/Jobs/MoveToStorage.php

@@ -0,0 +1,118 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment\Jobs;
+
+use Espo\Core\Job\Job;
+use Espo\Core\Job\Job\Data;
+use Espo\Core\Job\JobSchedulerFactory;
+
+use Espo\Core\Field\DateTime;
+
+use Espo\Core\FileStorage\Storages\EspoUploadDir;
+use Espo\Core\Utils\Config;
+use Espo\Core\FileStorage\Manager as FileStorageManager;
+
+use Espo\ORM\EntityManager;
+
+use Espo\Entities\Attachment;
+
+use LogicException;
+
+class MoveToStorage implements Job
+{
+    private const REMOVE_FILE_PERIOD = '3 hours';
+
+    private EntityManager $entityManager;
+
+    private Config $config;
+
+    private FileStorageManager $fileStorageManager;
+
+    private JobSchedulerFactory $jobSchedulerFactory;
+
+    public function __construct(
+        EntityManager $entityManager,
+        Config $config,
+        FileStorageManager $fileStorageManager,
+        JobSchedulerFactory $jobSchedulerFactory
+    ) {
+        $this->entityManager = $entityManager;
+        $this->config = $config;
+        $this->fileStorageManager = $fileStorageManager;
+        $this->jobSchedulerFactory = $jobSchedulerFactory;
+    }
+
+    public function run(Data $data): void
+    {
+        $id = $data->getTargetId();
+
+        if (!$id) {
+            throw new LogicException();
+        }
+
+        /** @var Attachment|null $attachment */
+        $attachment = $this->entityManager->getEntityById(Attachment::ENTITY_TYPE, $id);
+
+        if (!$attachment) {
+            return;
+        }
+
+        if ($attachment->getStorage() !== EspoUploadDir::NAME) {
+            return;
+        }
+
+        $defaultFileStorage = $this->config->get('defaultFileStorage');
+
+        if (!$defaultFileStorage || $defaultFileStorage === EspoUploadDir::NAME) {
+            return;
+        }
+
+        $stream = $this->fileStorageManager->getStream($attachment);
+
+        $attachment->set('storage', $defaultFileStorage);
+
+        $this->fileStorageManager->putStream($attachment, $stream);
+
+        $this->entityManager->saveEntity($attachment);
+
+        $this->jobSchedulerFactory->create()
+            ->setClassName(RemoveUploadDirFile::class)
+            ->setData(
+                Data::create()
+                    ->withTargetId($attachment->getId())
+            )
+            ->setTime(
+                DateTime::createNow()
+                    ->modify('+' . self::REMOVE_FILE_PERIOD)
+                    ->toDateTime()
+            )
+            ->schedule();
+    }
+}

application/Espo/Tools/Attachment/Jobs/RemoveUploadDirFile.php

@@ -0,0 +1,102 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment\Jobs;
+
+use Espo\Core\Job\Job;
+use Espo\Core\Job\Job\Data;
+
+use Espo\Core\Utils\File\Manager as FileManager;
+
+use Espo\Core\FileStorage\Factory as FileStorageFactory;
+use Espo\Core\FileStorage\Storages\EspoUploadDir;
+use Espo\Core\FileStorage\Local;
+
+use Espo\Entities\Attachment;
+
+use Espo\Core\FileStorage\AttachmentEntityWrapper;
+
+use Espo\ORM\EntityManager;
+
+use LogicException;
+
+class RemoveUploadDirFile implements Job
+{
+    private FileManager $fileManager;
+
+    private FileStorageFactory $fileStorageFactory;
+
+    private EntityManager $entityManager;
+
+    public function __construct(
+        FileManager $fileManager,
+        FileStorageFactory $fileStorageFactory,
+        EntityManager $entityManager
+    ) {
+        $this->fileManager = $fileManager;
+        $this->fileStorageFactory = $fileStorageFactory;
+        $this->entityManager = $entityManager;
+    }
+
+    public function run(Data $data): void
+    {
+        $id = $data->getTargetId();
+
+        if (!$id) {
+            throw new LogicException();
+        }
+
+        /** @var Attachment|null $attachment */
+        $attachment = $this->entityManager->getEntityById(Attachment::ENTITY_TYPE, $id);
+
+        if (!$attachment) {
+            return;
+        }
+
+        if ($attachment->getStorage() === EspoUploadDir::NAME) {
+            return;
+        }
+
+        $storage = $this->fileStorageFactory->create(EspoUploadDir::NAME);
+
+        if (!$storage instanceof Local) {
+            throw new LogicException();
+        }
+
+        $filePath = $storage->getLocalFilePath(
+            new AttachmentEntityWrapper($attachment)
+        );
+
+        if (!$this->fileManager->isFile($filePath)) {
+            return;
+        }
+
+        $this->fileManager->remove($filePath);
+    }
+}

application/Espo/Tools/Attachment/Service.php

@@ -0,0 +1,117 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Espo\Core\Exceptions\Error;
+use Espo\Core\Exceptions\Forbidden;
+use Espo\Core\Exceptions\NotFound;
+use Espo\Core\Record\ServiceContainer;
+use Espo\Entities\Attachment;
+use Espo\ORM\EntityManager;
+use Espo\Repositories\Attachment as AttachmentRepository;
+
+class Service
+{
+    private ServiceContainer $recordServiceContainer;
+    private EntityManager $entityManager;
+    private AccessChecker $accessChecker;
+
+    public function __construct(
+        ServiceContainer $recordServiceContainer,
+        EntityManager $entityManager,
+        AccessChecker $accessChecker
+    ) {
+        $this->recordServiceContainer = $recordServiceContainer;
+        $this->entityManager = $entityManager;
+        $this->accessChecker = $accessChecker;
+    }
+
+    /**
+     * Get file data (for downloading).
+     *
+     * @throws NotFound
+     * @throws Forbidden
+     */
+    public function getFileData(string $id): FileData
+    {
+        /** @var ?Attachment $attachment */
+        $attachment = $this->recordServiceContainer
+            ->get(Attachment::ENTITY_TYPE)
+            ->getEntity($id);
+
+        if (!$attachment) {
+            throw new NotFound();
+        }
+
+        return new FileData(
+            $attachment->getName(),
+            $attachment->getType(),
+            $this->getAttachmentRepository()->getStream($attachment),
+            $this->getAttachmentRepository()->getSize($attachment)
+        );
+    }
+
+    /**
+     * Copy an attachment record (to reuse the same file w/o copying it in the storage).
+     *
+     * @throws Forbidden
+     * @throws NotFound
+     */
+    public function copy(string $id, FieldData $data): Attachment
+    {
+        $this->accessChecker->check($data);
+
+        /** @var ?Attachment $attachment */
+        $attachment = $this->recordServiceContainer
+            ->get(Attachment::ENTITY_TYPE)
+            ->getEntity($id);
+
+        if (!$attachment) {
+            throw new NotFound();
+        }
+
+        $copied = $this->getAttachmentRepository()->getCopiedAttachment($attachment);
+
+        $copied->set('parentType', $data->getParentType());
+        $copied->set('relatedType', $data->getRelatedType());
+        $copied->setTargetField($data->getField());
+        $copied->setRole(Attachment::ROLE_ATTACHMENT);
+
+        $this->getAttachmentRepository()->save($copied);
+
+        return $copied;
+    }
+
+    private function getAttachmentRepository(): AttachmentRepository
+    {
+        /** @var AttachmentRepository */
+        return $this->entityManager->getRepositoryByClass(Attachment::class);
+    }
+}

application/Espo/Tools/Attachment/UploadService.php

@@ -0,0 +1,179 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Espo\Core\Acl;
+use Espo\Core\Acl\Table;
+use Espo\Core\Exceptions\BadRequest;
+use Espo\Core\Exceptions\Error;
+use Espo\Core\Exceptions\Forbidden;
+use Espo\Core\Exceptions\ForbiddenSilent;
+use Espo\Core\Exceptions\NotFound;
+use Espo\Core\FileStorage\Storages\EspoUploadDir;
+use Espo\Core\Job\Job\Data as JobData;
+use Espo\Core\Job\JobSchedulerFactory;
+use Espo\Core\Record\ServiceContainer;
+use Espo\Core\Utils\File\Manager as FileManager;
+use Espo\Entities\Attachment;
+use Espo\ORM\EntityManager;
+use Espo\Repositories\Attachment as AttachmentRepository;
+use Espo\Tools\Attachment\Jobs\MoveToStorage;
+use Espo\Core\ORM\Type\FieldType;
+
+class UploadService
+{
+    private JobSchedulerFactory $jobSchedulerFactory;
+    private ServiceContainer $recordServiceContainer;
+    private Acl $acl;
+    private EntityManager $entityManager;
+    private FileManager $fileManager;
+    private DetailsObtainer $detailsObtainer;
+    private Checker $checker;
+
+    public function __construct(
+        JobSchedulerFactory $jobSchedulerFactory,
+        ServiceContainer $recordServiceContainer,
+        Acl $acl,
+        EntityManager $entityManager,
+        FileManager $fileManager,
+        DetailsObtainer $detailsObtainer,
+        Checker $checker
+    ) {
+        $this->jobSchedulerFactory = $jobSchedulerFactory;
+        $this->recordServiceContainer = $recordServiceContainer;
+        $this->acl = $acl;
+        $this->entityManager = $entityManager;
+        $this->fileManager = $fileManager;
+        $this->detailsObtainer = $detailsObtainer;
+        $this->checker = $checker;
+    }
+
+    /**
+     * Upload a chunk.
+     *
+     * @throws BadRequest
+     * @throws Forbidden
+     * @throws Error
+     * @throws NotFound
+     */
+    public function uploadChunk(string $id, string $fileData): void
+    {
+        if (!$this->acl->checkScope(Attachment::ENTITY_TYPE, Table::ACTION_CREATE)) {
+            throw new Forbidden();
+        }
+
+        /** @var ?Attachment $attachment */
+        $attachment = $this->recordServiceContainer
+            ->get(Attachment::ENTITY_TYPE)
+            ->getEntity($id);
+
+        if (!$attachment) {
+            throw new NotFound();
+        }
+
+        if (!$attachment->isBeingUploaded()) {
+            throw new Forbidden("Attachment is not being-uploaded.");
+        }
+
+        if ($attachment->getStorage() !== EspoUploadDir::NAME) {
+            throw new Forbidden("Attachment storage is not 'EspoUploadDir'.");
+        }
+
+        $arr = explode(';base64,', $fileData);
+
+        if (count($arr) < 2) {
+            throw new BadRequest("Bad file data.");
+        }
+
+        $contents = base64_decode($arr[1]);
+
+        $filePath = $this->getAttachmentRepository()->getFilePath($attachment);
+
+        $chunkSize = strlen($contents);
+
+        $actualFileSize = 0;
+
+        if ($this->fileManager->isFile($filePath)) {
+            $actualFileSize = $this->fileManager->getSize($filePath);
+        }
+
+        $maxFileSize = $this->detailsObtainer->getUploadMaxSize($attachment);
+
+        if ($actualFileSize + $chunkSize > $maxFileSize) {
+            throw new Forbidden("Max attachment size exceeded.");
+        }
+
+        $this->fileManager->appendContents($filePath, $contents);
+
+        if ($actualFileSize + $chunkSize > $attachment->getSize()) {
+            throw new Error("File size mismatch.");
+        }
+
+        $isLastChunk = $actualFileSize + $chunkSize === $attachment->getSize();
+
+        if (!$isLastChunk) {
+            return;
+        }
+
+        if ($this->detailsObtainer->getFieldType($attachment) === FieldType::IMAGE) {
+            try {
+                $this->checker->checkTypeImage($attachment, $filePath);
+            } catch (Forbidden $e) {
+                $this->entityManager->removeEntity($attachment);
+
+                throw new ForbiddenSilent($e->getMessage());
+            }
+        }
+
+        $attachment->set('isBeingUploaded', false);
+
+        $this->entityManager->saveEntity($attachment);
+
+        $this->createJobMoveToStorage($attachment);
+    }
+
+    private function getAttachmentRepository(): AttachmentRepository
+    {
+        /** @var AttachmentRepository */
+        return $this->entityManager->getRepositoryByClass(Attachment::class);
+    }
+
+    private function createJobMoveToStorage(Attachment $attachment): void
+    {
+         $this->jobSchedulerFactory
+            ->create()
+            ->setClassName(MoveToStorage::class)
+            ->setData(
+                JobData::create()
+                    ->withTargetId($attachment->getId())
+            )
+            ->schedule();
+    }
+}

application/Espo/Tools/Attachment/UploadUrlService.php

@@ -0,0 +1,208 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment;
+
+use Espo\Core\Exceptions\Error;
+use Espo\Core\Exceptions\ErrorSilent;
+use Espo\Core\Exceptions\Forbidden;
+use Espo\Core\Exceptions\ForbiddenSilent;
+use Espo\Core\Utils\File\MimeType;
+use Espo\Core\Utils\Metadata;
+use Espo\Core\Utils\Security\UrlCheck;
+use Espo\Entities\Attachment as Attachment;
+use Espo\ORM\EntityManager;
+use Espo\Repositories\Attachment as AttachmentRepository;
+
+class UploadUrlService
+{
+    private AccessChecker $accessChecker;
+    private Metadata $metadata;
+    private EntityManager $entityManager;
+    private MimeType $mimeType;
+    private DetailsObtainer $detailsObtainer;
+
+    public function __construct(
+        AccessChecker $accessChecker,
+        Metadata $metadata,
+        EntityManager $entityManager,
+        MimeType $mimeType,
+        DetailsObtainer $detailsObtainer,
+        private UrlCheck $urlCheck
+    ) {
+        $this->accessChecker = $accessChecker;
+        $this->metadata = $metadata;
+        $this->entityManager = $entityManager;
+        $this->mimeType = $mimeType;
+        $this->detailsObtainer = $detailsObtainer;
+    }
+
+    /**
+     * Upload an image from and URL and store as attachment.
+     *
+     * @throws Forbidden
+     * @throws Error
+     */
+    public function uploadImage(string $url, FieldData $data): Attachment
+    {
+        if (!$this->urlCheck->isNotInternalUrl($url)) {
+            throw new ForbiddenSilent("Not allowed URL.");
+        }
+
+        $attachment = $this->getAttachmentRepository()->getNew();
+
+        $this->accessChecker->check($data);
+
+        [$type, $contents] = $this->getImageDataByUrl($url) ?? [null, null];
+
+        if (!$type || !$contents) {
+            throw new ErrorSilent("Bad image data.");
+        }
+
+        $attachment->set([
+            'name' => $url,
+            'type' => $type,
+            'contents' => $contents,
+            'role' => Attachment::ROLE_ATTACHMENT,
+        ]);
+
+        $attachment->set('parentType', $data->getParentType());
+        $attachment->set('relatedType', $data->getRelatedType());
+        $attachment->set('field', $data->getField());
+
+        $size = mb_strlen($contents, '8bit');
+        $maxSize = $this->detailsObtainer->getUploadMaxSize($attachment);
+
+        if ($maxSize && $size > $maxSize) {
+            throw new Error("File size should not exceed {$maxSize}Mb.");
+        }
+
+        $this->getAttachmentRepository()->save($attachment);
+
+        $attachment->clear('contents');
+
+        return $attachment;
+    }
+
+    /**
+     * @param string $url
+     * @return ?array{string, string} A type and contents.
+     */
+    private function getImageDataByUrl(string $url): ?array
+    {
+        $type = null;
+
+        if (!function_exists('curl_init')) {
+            return null;
+        }
+
+        $opts = [];
+
+        $httpHeaders = [];
+        $httpHeaders[] = 'Expect:';
+
+        $opts[\CURLOPT_URL]  = $url;
+        $opts[\CURLOPT_HTTPHEADER] = $httpHeaders;
+        $opts[\CURLOPT_CONNECTTIMEOUT] = 10;
+        $opts[\CURLOPT_TIMEOUT] = 10;
+        $opts[\CURLOPT_HEADER] = true;
+        $opts[\CURLOPT_VERBOSE] = true;
+        $opts[\CURLOPT_SSL_VERIFYPEER] = true;
+        $opts[\CURLOPT_SSL_VERIFYHOST] = 2;
+        $opts[\CURLOPT_RETURNTRANSFER] = true;
+        // Prevents Server Side Request Forgery by redirecting to an internal host.
+        $opts[\CURLOPT_FOLLOWLOCATION] = false;
+        $opts[\CURLOPT_MAXREDIRS] = 2;
+        $opts[\CURLOPT_IPRESOLVE] = \CURL_IPRESOLVE_V4;
+        $opts[\CURLOPT_PROTOCOLS] = \CURLPROTO_HTTPS | \CURLPROTO_HTTP;
+        $opts[\CURLOPT_REDIR_PROTOCOLS] = \CURLPROTO_HTTPS;
+
+        $ch = curl_init();
+
+        curl_setopt_array($ch, $opts);
+
+        /** @var string|false $response */
+        $response = curl_exec($ch);
+
+        if ($response === false) {
+            curl_close($ch);
+
+            return null;
+        }
+
+        $headerSize = curl_getinfo($ch, \CURLINFO_HEADER_SIZE);
+
+        $header = substr($response, 0, $headerSize);
+        $body = substr($response, $headerSize);
+
+        $headLineList = explode("\n", $header);
+
+        foreach ($headLineList as $i => $line) {
+            if ($i === 0) {
+                continue;
+            }
+
+            if (strpos(strtolower($line), strtolower('Content-Type:')) === 0) {
+                $part = trim(substr($line, 13));
+
+                if ($part) {
+                    $type = trim(explode(";", $part)[0]);
+                }
+            }
+        }
+
+        if (!$type) {
+            /** @var string $extension */
+            $extension = preg_replace('#\?.*#', '', pathinfo($url, \PATHINFO_EXTENSION));
+
+            $type = $this->mimeType->getMimeTypeByExtension($extension);
+        }
+
+        curl_close($ch);
+
+        if (!$type) {
+            return null;
+        }
+
+        /** @var string[] $imageTypeList */
+        $imageTypeList = $this->metadata->get(['app', 'image', 'allowedFileTypeList']) ?? [];
+
+        if (!in_array($type, $imageTypeList)) {
+            return null;
+        }
+
+        return [$type, $body];
+    }
+
+    private function getAttachmentRepository(): AttachmentRepository
+    {
+        /** @var AttachmentRepository */
+        return $this->entityManager->getRepositoryByClass(Attachment::class);
+    }
+}