319 lines
11 KiB
PHP
319 lines
11 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace OCA\Memories\Db;
|
|
|
|
use OCA\Memories\Exif;
|
|
use OCA\Memories\Service\Index;
|
|
use OCP\DB\QueryBuilder\IQueryBuilder;
|
|
use OCP\Files\File;
|
|
use OCP\IDBConnection;
|
|
use OCP\Lock\ILockingProvider;
|
|
|
|
require_once __DIR__.'/../ExifFields.php';
|
|
|
|
const DELETE_TABLES = ['memories', 'memories_livephoto', 'memories_places'];
|
|
const TRUNCATE_TABLES = ['memories_mapclusters'];
|
|
|
|
class TimelineWrite
|
|
{
|
|
use TimelineWriteMap;
|
|
use TimelineWriteOrphans;
|
|
use TimelineWritePlaces;
|
|
protected IDBConnection $connection;
|
|
protected LivePhoto $livePhoto;
|
|
protected ILockingProvider $lockingProvider;
|
|
|
|
public function __construct(
|
|
IDBConnection $connection,
|
|
LivePhoto $livePhoto,
|
|
ILockingProvider $lockingProvider
|
|
) {
|
|
$this->connection = $connection;
|
|
$this->livePhoto = $livePhoto;
|
|
$this->lockingProvider = $lockingProvider;
|
|
}
|
|
|
|
/**
|
|
* Process a file to insert Exif data into the database.
|
|
*
|
|
* @param File $file File node to process
|
|
* @param bool $lock Lock the file before processing
|
|
* @param bool $force Update the record even if the file has not changed
|
|
*
|
|
* @return bool True if the file was processed
|
|
*
|
|
* @throws \OCP\Lock\LockedException If the file is locked
|
|
* @throws \OCP\DB\Exception If the database query fails
|
|
*/
|
|
public function processFile(
|
|
File $file,
|
|
bool $lock = true,
|
|
bool $force = false
|
|
): bool {
|
|
// Check if we want to process this file
|
|
if (!Index::isSupported($file)) {
|
|
return false;
|
|
}
|
|
|
|
// Check if we need to lock the file
|
|
if ($lock) {
|
|
$lockKey = '/memories/'.$file->getId();
|
|
$lockType = ILockingProvider::LOCK_EXCLUSIVE;
|
|
|
|
// Throw directly to caller if we can't get the lock
|
|
// This way we don't release someone else's lock
|
|
$this->lockingProvider->acquireLock($lockKey, $lockType);
|
|
|
|
try {
|
|
return $this->processFile($file, false, $force);
|
|
} finally {
|
|
$this->lockingProvider->releaseLock($lockKey, $lockType);
|
|
}
|
|
}
|
|
|
|
// Get parameters
|
|
$mtime = $file->getMtime();
|
|
$fileId = $file->getId();
|
|
$isvideo = Index::isVideo($file);
|
|
|
|
// Get previous row
|
|
$prevRow = $this->getCurrentRow($fileId);
|
|
|
|
// Skip if all of the following:
|
|
// - not forced
|
|
// - the record exists
|
|
// - the file has not changed
|
|
// - the record is not an orphan
|
|
if (!$force && $prevRow && ((int) $prevRow['mtime'] === $mtime) && (!(bool) $prevRow['orphan'])) {
|
|
return false;
|
|
}
|
|
|
|
// Get exif data
|
|
$exif = Exif::getExifFromFile($file);
|
|
|
|
// Check if EXIF is blank, which is probably wrong
|
|
if (0 === \count($exif)) {
|
|
throw new \Exception('No EXIF data could be read: '.$file->getPath());
|
|
}
|
|
|
|
// Hand off if Live Photo video part
|
|
if ($isvideo && $this->livePhoto->isVideoPart($exif)) {
|
|
$this->livePhoto->processVideoPart($file, $exif);
|
|
|
|
return true;
|
|
}
|
|
|
|
// Delete video part if it is no longer valid
|
|
if ($prevRow && !\array_key_exists('mapcluster', $prevRow)) {
|
|
$this->livePhoto->deleteVideoPart($file);
|
|
$prevRow = null;
|
|
}
|
|
|
|
// Video parameters
|
|
$videoDuration = round((float) ($isvideo ? ($exif['Duration'] ?? $exif['TrackDuration'] ?? 0) : 0));
|
|
|
|
// Process location data
|
|
// This also modifies the exif array in-place to set the LocationTZID
|
|
// and drop the GPS data if it is not valid
|
|
[$lat, $lon, $mapCluster] = $this->processExifLocation($fileId, $exif, $prevRow);
|
|
|
|
// Get date parameters (after setting timezone offset)
|
|
$dateTaken = Exif::getDateTaken($file, $exif);
|
|
|
|
// Store the acutal epoch with the EXIF data
|
|
$epoch = $exif['DateTimeEpoch'] = $dateTaken->getTimestamp();
|
|
|
|
// Store the date taken in the database as UTC (local date) only
|
|
// Basically, assume everything happens in Greenwich
|
|
$dateLocalUtc = Exif::forgetTimezone($dateTaken)->getTimestamp();
|
|
$dateTakenStr = gmdate('Y-m-d H:i:s', $dateLocalUtc);
|
|
|
|
// We need to use the local time in UTC for the dayId
|
|
// This way two photos in different timezones on the same date locally
|
|
// end up in the same dayId group
|
|
$dayId = floor($dateLocalUtc / 86400);
|
|
|
|
// Get size of image
|
|
[$w, $h] = Exif::getDimensions($exif);
|
|
|
|
// Get live photo ID of video part
|
|
$liveid = $this->livePhoto->getLivePhotoId($file, $exif);
|
|
|
|
// Get BUID from ImageUniqueId if not present
|
|
$buid = $prevRow ? $prevRow['buid'] : '';
|
|
if (empty($buid)) {
|
|
$imageUniqueId = \array_key_exists('ImageUniqueID', $exif) ? $exif['ImageUniqueID'] : null;
|
|
$buid = Exif::getBUID($file->getName(), $imageUniqueId, $file->getSize());
|
|
}
|
|
|
|
// Get exif json
|
|
$exifJson = $this->getExifJson($exif);
|
|
|
|
// Parameters for insert or update
|
|
$query = $this->connection->getQueryBuilder();
|
|
$params = [
|
|
'fileid' => $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT),
|
|
'objectid' => $query->createNamedParameter((string) $fileId, IQueryBuilder::PARAM_STR),
|
|
'dayid' => $query->createNamedParameter($dayId, IQueryBuilder::PARAM_INT),
|
|
'datetaken' => $query->createNamedParameter($dateTakenStr, IQueryBuilder::PARAM_STR),
|
|
'epoch' => $query->createNamedParameter($epoch, IQueryBuilder::PARAM_INT),
|
|
'mtime' => $query->createNamedParameter($mtime, IQueryBuilder::PARAM_INT),
|
|
'isvideo' => $query->createNamedParameter($isvideo, IQueryBuilder::PARAM_INT),
|
|
'video_duration' => $query->createNamedParameter($videoDuration, IQueryBuilder::PARAM_INT),
|
|
'w' => $query->createNamedParameter($w, IQueryBuilder::PARAM_INT),
|
|
'h' => $query->createNamedParameter($h, IQueryBuilder::PARAM_INT),
|
|
'exif' => $query->createNamedParameter($exifJson, IQueryBuilder::PARAM_STR),
|
|
'liveid' => $query->createNamedParameter($liveid, IQueryBuilder::PARAM_STR),
|
|
'lat' => $query->createNamedParameter($lat, IQueryBuilder::PARAM_STR),
|
|
'lon' => $query->createNamedParameter($lon, IQueryBuilder::PARAM_STR),
|
|
'mapcluster' => $query->createNamedParameter($mapCluster, IQueryBuilder::PARAM_INT),
|
|
'orphan' => $query->createNamedParameter(false, IQueryBuilder::PARAM_BOOL),
|
|
'buid' => $query->createNamedParameter($buid, IQueryBuilder::PARAM_STR),
|
|
];
|
|
|
|
// There is no easy way to UPSERT in standard SQL
|
|
// https://stackoverflow.com/questions/15252213/sql-standard-upsert-call
|
|
if ($prevRow) {
|
|
$query->update('memories')
|
|
->where($query->expr()->eq('fileid', $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)))
|
|
;
|
|
foreach ($params as $key => $value) {
|
|
$query->set($key, $value);
|
|
}
|
|
} else {
|
|
$query->insert('memories')->values($params);
|
|
}
|
|
|
|
return $query->executeStatement() > 0;
|
|
}
|
|
|
|
/**
|
|
* Remove a file from the exif database.
|
|
*/
|
|
public function deleteFile(File &$file): void
|
|
{
|
|
// Get full record
|
|
$query = $this->connection->getQueryBuilder();
|
|
$query->select('*')
|
|
->from('memories')
|
|
->where($query->expr()->eq('fileid', $query->createNamedParameter($file->getId(), IQueryBuilder::PARAM_INT)))
|
|
;
|
|
$record = $query->executeQuery()->fetch();
|
|
|
|
// Begin transaction
|
|
$this->connection->beginTransaction();
|
|
|
|
// Delete all records regardless of existence
|
|
foreach (DELETE_TABLES as $table) {
|
|
$query = $this->connection->getQueryBuilder();
|
|
$query->delete($table)
|
|
->where($query->expr()->eq('fileid', $query->createNamedParameter($file->getId(), IQueryBuilder::PARAM_INT)))
|
|
;
|
|
$query->executeStatement();
|
|
}
|
|
|
|
// Delete from map cluster
|
|
if ($record && ($cid = (int) $record['mapcluster']) > 0) {
|
|
$this->mapRemoveFromCluster($cid, (float) $record['lat'], (float) $record['lon']);
|
|
}
|
|
|
|
// Commit transaction
|
|
$this->connection->commit();
|
|
}
|
|
|
|
/**
|
|
* Clean up the table for entries not present in filecache.
|
|
*/
|
|
public function cleanupStale(): void
|
|
{
|
|
// Begin transaction
|
|
$this->connection->beginTransaction();
|
|
|
|
// Delete all stale records
|
|
foreach (DELETE_TABLES as $table) {
|
|
$query = $this->connection->getQueryBuilder();
|
|
$clause = $query
|
|
->select($query->expr()->literal('1'))
|
|
->from('filecache', 'f')
|
|
->where($query->expr()->eq('f.fileid', "*PREFIX*{$table}.fileid"))
|
|
->getSQL()
|
|
;
|
|
|
|
$query = $this->connection->getQueryBuilder();
|
|
$query->delete($table)
|
|
->where($query->createFunction("NOT EXISTS({$clause})"))
|
|
->executeStatement()
|
|
;
|
|
}
|
|
|
|
// Commit transaction
|
|
$this->connection->commit();
|
|
}
|
|
|
|
/**
|
|
* Clear the entire index. Does not need confirmation!
|
|
*/
|
|
public function clear(): void
|
|
{
|
|
$p = $this->connection->getDatabasePlatform();
|
|
foreach (array_merge(DELETE_TABLES, TRUNCATE_TABLES) as $table) {
|
|
$this->connection->executeStatement($p->getTruncateTableSQL('*PREFIX*'.$table, false));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get the current row for a file_id, from either table.
|
|
*/
|
|
private function getCurrentRow(int $fileId): ?array
|
|
{
|
|
$fetch = function (string $table) use ($fileId) {
|
|
$query = $this->connection->getQueryBuilder();
|
|
|
|
return $query->select('*')
|
|
->from($table)
|
|
->where($query->expr()->eq('fileid', $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)))
|
|
->executeQuery()
|
|
->fetch()
|
|
;
|
|
};
|
|
|
|
return $fetch('memories') ?: $fetch('memories_livephoto') ?: null;
|
|
}
|
|
|
|
/**
|
|
* Convert EXIF data to filtered JSON string.
|
|
*/
|
|
private function getExifJson(array $exif): string
|
|
{
|
|
// Clean up EXIF to keep only useful metadata
|
|
$filteredExif = [];
|
|
foreach ($exif as $key => $value) {
|
|
// Truncate any fields > 2048 chars
|
|
if (\is_string($value) && \strlen($value) > 2048) {
|
|
$value = substr($value, 0, 2048);
|
|
}
|
|
|
|
// Only keep fields in the whitelist
|
|
if (\array_key_exists($key, EXIF_FIELDS_LIST)) {
|
|
$filteredExif[$key] = $value;
|
|
}
|
|
}
|
|
|
|
// Store JSON string
|
|
$exifJson = json_encode($filteredExif);
|
|
|
|
// Store error if data > 64kb
|
|
if (\is_string($exifJson)) {
|
|
if (\strlen($exifJson) > 65535) {
|
|
$exifJson = json_encode(['error' => 'Exif data too large']);
|
|
}
|
|
} else {
|
|
$exifJson = json_encode(['error' => 'Exif data encoding error']);
|
|
}
|
|
|
|
return $exifJson;
|
|
}
|
|
}
|