288 lines
10 KiB
PHP
288 lines
10 KiB
PHP
<?php
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declare(strict_types=1);
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namespace OCA\Memories\Db;
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use OCA\Memories\AppInfo\Application;
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use OCA\Memories\Exif;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCP\Files\File;
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use OCP\IDBConnection;
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use OCP\IPreview;
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use Psr\Log\LoggerInterface;
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require_once __DIR__.'/../ExifFields.php';
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const DELETE_TABLES = ['memories', 'memories_livephoto', 'memories_places'];
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const TRUNCATE_TABLES = ['memories_mapclusters'];
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class TimelineWrite
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{
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use TimelineWriteMap;
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use TimelineWriteOrphans;
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use TimelineWritePlaces;
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protected IDBConnection $connection;
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protected IPreview $preview;
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protected LivePhoto $livePhoto;
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public function __construct(IDBConnection $connection)
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{
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$this->connection = $connection;
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$this->preview = \OC::$server->get(IPreview::class);
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$this->livePhoto = new LivePhoto($connection);
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}
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/**
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* Check if a file has a valid mimetype for processing.
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*
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* @return int 0 for invalid, 1 for image, 2 for video
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*/
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public function getFileType(File $file): int
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{
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$mime = $file->getMimeType();
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if (\in_array($mime, Application::IMAGE_MIMES, true)) {
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// Make sure preview generator supports the mime type
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if (!$this->preview->isMimeSupported($mime)) {
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return 0;
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}
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return 1;
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}
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if (\in_array($mime, Application::VIDEO_MIMES, true)) {
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return 2;
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}
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return 0;
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}
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/**
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* Process a file to insert Exif data into the database.
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*
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* @param File $file File node to process
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* @param int $force 0 = none, 1 = force, 2 = force if orphan
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*
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* @return int 2 if processed, 1 if skipped, 0 if not valid
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*/
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public function processFile(
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File &$file,
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int $force = 0
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): int {
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// There is no easy way to UPSERT in a standard SQL way, so just
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// do multiple calls. The worst that can happen is more updates,
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// but that's not a big deal.
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// https://stackoverflow.com/questions/15252213/sql-standard-upsert-call
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// Check if we want to process this file
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$fileType = $this->getFileType($file);
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$isvideo = (2 === $fileType);
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if (!$fileType) {
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return 0;
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}
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// Get parameters
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$mtime = $file->getMtime();
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$fileId = $file->getId();
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// Check if need to update
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$query = $this->connection->getQueryBuilder();
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$query->select('fileid', 'mtime', 'mapcluster', 'orphan', 'lat', 'lon')
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->from('memories')
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->where($query->expr()->eq('fileid', $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)))
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;
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$cursor = $query->executeQuery();
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$prevRow = $cursor->fetch();
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$cursor->closeCursor();
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// Check in live-photo table in case this is a video part of a Live Photo
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if (!$prevRow) {
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$query = $this->connection->getQueryBuilder();
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$query->select('fileid', 'mtime')
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->from('memories_livephoto')
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->where($query->expr()->eq('fileid', $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)))
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;
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$cursor = $query->executeQuery();
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$prevRow = $cursor->fetch();
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$cursor->closeCursor();
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}
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// Check if a forced update is required
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$isForced = (1 === $force);
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if (2 === $force) {
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$isForced = !$prevRow
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// Could be live video, force regardless
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|| !\array_key_exists('orphan', $prevRow)
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// If orphan, force for sure
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|| $prevRow['orphan'];
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}
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// Skip if not forced and file has not changed
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if (!$isForced && $prevRow && ((int) $prevRow['mtime'] === $mtime)) {
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return 1;
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}
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// Get exif data
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$exif = [];
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try {
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$exif = Exif::getExifFromFile($file);
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} catch (\Exception $e) {
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}
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// Hand off if Live Photo video part
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if ($isvideo && $this->livePhoto->isVideoPart($exif)) {
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$this->livePhoto->processVideoPart($file, $exif);
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return 2;
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}
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// Get more parameters
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$dateTaken = Exif::getDateTaken($file, $exif);
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$dayId = floor($dateTaken / 86400);
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$dateTaken = gmdate('Y-m-d H:i:s', $dateTaken);
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[$w, $h] = Exif::getDimensions($exif);
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$liveid = $this->livePhoto->getLivePhotoId($file, $exif);
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// Video parameters
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$videoDuration = 0;
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if ($isvideo) {
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$videoDuration = round((float) ($exif['Duration'] ?? $exif['TrackDuration'] ?? 0));
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}
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// Clean up EXIF to keep only useful metadata
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$filteredExif = [];
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foreach ($exif as $key => $value) {
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// Truncate any fields > 2048 chars
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if (\is_string($value) && \strlen($value) > 2048) {
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$value = substr($value, 0, 2048);
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}
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// Only keep fields in the whitelist
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if (\array_key_exists($key, EXIF_FIELDS_LIST)) {
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$filteredExif[$key] = $value;
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}
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}
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// Store JSON string
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$exifJson = json_encode($filteredExif);
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// Store error if data > 64kb
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if (\is_string($exifJson)) {
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if (\strlen($exifJson) > 65535) {
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$exifJson = json_encode(['error' => 'Exif data too large']);
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}
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} else {
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$exifJson = json_encode(['error' => 'Exif data encoding error']);
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}
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// Store location data
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$lat = \array_key_exists('GPSLatitude', $exif) ? (float) $exif['GPSLatitude'] : null;
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$lon = \array_key_exists('GPSLongitude', $exif) ? (float) $exif['GPSLongitude'] : null;
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$oldLat = $prevRow ? (float) $prevRow['lat'] : null;
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$oldLon = $prevRow ? (float) $prevRow['lon'] : null;
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$mapCluster = $prevRow ? (int) $prevRow['mapcluster'] : -1;
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if ($lat || $lon || $oldLat || $oldLon) {
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try {
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$mapCluster = $this->mapGetCluster($mapCluster, $lat, $lon, $oldLat, $oldLon);
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} catch (\Error $e) {
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$logger = \OC::$server->get(LoggerInterface::class);
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$logger->log(3, 'Error updating map cluster data: '.$e->getMessage(), ['app' => 'memories']);
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}
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try {
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$this->updatePlacesData($fileId, $lat, $lon);
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} catch (\Error $e) {
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$logger = \OC::$server->get(LoggerInterface::class);
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$logger->log(3, 'Error updating places data: '.$e->getMessage(), ['app' => 'memories']);
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}
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}
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// NULL if invalid
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$mapCluster = $mapCluster <= 0 ? null : $mapCluster;
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// Parameters for insert or update
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$params = [
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'fileid' => $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT),
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'objectid' => $query->createNamedParameter((string) $fileId, IQueryBuilder::PARAM_STR),
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'dayid' => $query->createNamedParameter($dayId, IQueryBuilder::PARAM_INT),
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'datetaken' => $query->createNamedParameter($dateTaken, IQueryBuilder::PARAM_STR),
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'mtime' => $query->createNamedParameter($mtime, IQueryBuilder::PARAM_INT),
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'isvideo' => $query->createNamedParameter($isvideo, IQueryBuilder::PARAM_INT),
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'video_duration' => $query->createNamedParameter($videoDuration, IQueryBuilder::PARAM_INT),
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'w' => $query->createNamedParameter($w, IQueryBuilder::PARAM_INT),
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'h' => $query->createNamedParameter($h, IQueryBuilder::PARAM_INT),
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'exif' => $query->createNamedParameter($exifJson, IQueryBuilder::PARAM_STR),
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'liveid' => $query->createNamedParameter($liveid, IQueryBuilder::PARAM_STR),
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'lat' => $query->createNamedParameter($lat, IQueryBuilder::PARAM_STR),
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'lon' => $query->createNamedParameter($lon, IQueryBuilder::PARAM_STR),
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'mapcluster' => $query->createNamedParameter($mapCluster, IQueryBuilder::PARAM_INT),
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];
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if ($prevRow) {
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// Update existing row
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// No need to set objectid again
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$query->update('memories')
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->where($query->expr()->eq('fileid', $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)))
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;
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foreach ($params as $key => $value) {
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if ('objectid' !== $key && 'fileid' !== $key) {
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$query->set($key, $value);
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}
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}
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$query->executeStatement();
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} else {
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// Try to create new row
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try {
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$query->insert('memories')->values($params);
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$query->executeStatement();
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} catch (\Exception $ex) {
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error_log('Failed to create memories record: '.$ex->getMessage());
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}
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}
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return 2;
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}
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/**
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* Remove a file from the exif database.
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*/
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public function deleteFile(File &$file)
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{
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// Get full record
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$query = $this->connection->getQueryBuilder();
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$query->select('*')
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->from('memories')
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->where($query->expr()->eq('fileid', $query->createNamedParameter($file->getId(), IQueryBuilder::PARAM_INT)))
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;
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$record = $query->executeQuery()->fetch();
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// Delete all records regardless of existence
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foreach (DELETE_TABLES as $table) {
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$query = $this->connection->getQueryBuilder();
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$query->delete($table)
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->where($query->expr()->eq('fileid', $query->createNamedParameter($file->getId(), IQueryBuilder::PARAM_INT)))
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;
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$query->executeStatement();
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}
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// Delete from map cluster
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if ($record && ($cid = (int) $record['mapcluster']) > 0) {
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$this->mapRemoveFromCluster($cid, (float) $record['lat'], (float) $record['lon']);
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}
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}
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/**
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* Clear the entire index. Does not need confirmation!
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*
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* @param File $file
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*/
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public function clear()
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{
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$p = $this->connection->getDatabasePlatform();
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foreach (array_merge(DELETE_TABLES, TRUNCATE_TABLES) as $table) {
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$this->connection->executeStatement($p->getTruncateTableSQL('*PREFIX*'.$table, false));
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}
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}
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}
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