memories/lib/Controller/FacesController.php

156 lines
4.9 KiB
PHP
Raw Normal View History

2022-10-29 18:05:05 +00:00
<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2022 Varun Patil <radialapps@gmail.com>
* @author Varun Patil <radialapps@gmail.com>
* @license AGPL-3.0-or-later
*
* 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 <http://www.gnu.org/licenses/>.
*/
namespace OCA\Memories\Controller;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\DataDisplayResponse;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\Http\JSONResponse;
use OCP\Files\FileInfo;
class FacesController extends ApiBase
{
/**
* @NoAdminRequired
*
* Get list of faces with counts of images
*/
public function faces(): JSONResponse
{
$user = $this->userSession->getUser();
if (null === $user) {
return new JSONResponse([], Http::STATUS_PRECONDITION_FAILED);
}
// Check faces enabled for this user
if (!$this->recognizeIsEnabled()) {
return new JSONResponse(['message' => 'Recognize app not enabled or not v3+'], Http::STATUS_PRECONDITION_FAILED);
}
// If this isn't the timeline folder then things aren't going to work
$folder = $this->getRequestFolder();
if (null === $folder) {
return new JSONResponse([], Http::STATUS_NOT_FOUND);
}
// Run actual query
$list = $this->timelineQuery->getFaces(
$folder,
);
return new JSONResponse($list, Http::STATUS_OK);
}
/**
* @NoAdminRequired
*
* @NoCSRFRequired
*
* Get face preview image cropped with imagick
*
* @return DataResponse
*/
public function preview(string $id): Http\Response
{
$user = $this->userSession->getUser();
if (null === $user) {
return new DataResponse([], Http::STATUS_PRECONDITION_FAILED);
}
// Check faces enabled for this user
if (!$this->recognizeIsEnabled()) {
return new DataResponse([], Http::STATUS_PRECONDITION_FAILED);
}
// Get folder to search for
$folder = $this->getRequestFolder();
if (null === $folder) {
return new JSONResponse([], Http::STATUS_NOT_FOUND);
}
// Run actual query
$detections = $this->timelineQuery->getFacePreviewDetection($folder, (int) $id);
if (null === $detections || 0 === \count($detections)) {
return new DataResponse([], Http::STATUS_NOT_FOUND);
}
// Find the first detection that has a preview
$preview = null;
foreach ($detections as &$detection) {
// Get the file (also checks permissions)
$files = $folder->getById($detection['file_id']);
if (0 === \count($files) || FileInfo::TYPE_FILE !== $files[0]->getType()) {
continue;
}
2022-11-15 13:40:46 +00:00
// Check read permission
if (!($files[0]->getPermissions() & \OCP\Constants::PERMISSION_READ)) {
continue;
}
2022-10-29 18:05:05 +00:00
// Get (hopefully cached) preview image
try {
$preview = $this->previewManager->getPreview($files[0], 2048, 2048, false);
} catch (\Exception $e) {
continue;
}
// Got the preview
break;
}
// Make sure the preview is valid
if (null === $preview) {
return new DataResponse([], Http::STATUS_NOT_FOUND);
}
// Crop image
$image = new \Imagick();
$image->readImageBlob($preview->getContent());
$iw = $image->getImageWidth();
$ih = $image->getImageHeight();
$dw = (float) $detection['width'];
$dh = (float) $detection['height'];
$dcx = (float) $detection['x'] + (float) $detection['width'] / 2;
$dcy = (float) $detection['y'] + (float) $detection['height'] / 2;
$faceDim = max($dw * $iw, $dh * $ih) * 1.5;
$image->cropImage(
(int) $faceDim,
(int) $faceDim,
(int) ($dcx * $iw - $faceDim / 2),
(int) ($dcy * $ih - $faceDim / 2),
);
$image->scaleImage(256, 256, true);
$blob = $image->getImageBlob();
// Create and send response
$response = new DataDisplayResponse($blob, Http::STATUS_OK, [
'Content-Type' => $image->getImageMimeType(),
]);
$response->cacheFor(3600 * 24, false, false);
return $response;
}
}