2020-02-01 17:58:45 +01:00
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package scanner
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import (
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"container/list"
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"database/sql"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path"
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2020-02-12 18:10:52 +01:00
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"strconv"
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"strings"
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2020-02-01 17:58:45 +01:00
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2020-06-22 23:52:41 +02:00
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"github.com/pkg/errors"
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2020-02-01 17:58:45 +01:00
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"github.com/viktorstrate/photoview/api/graphql/models"
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2020-02-21 20:51:50 +01:00
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"github.com/viktorstrate/photoview/api/graphql/notification"
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"github.com/viktorstrate/photoview/api/utils"
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2020-02-01 17:58:45 +01:00
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)
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2020-06-22 23:52:41 +02:00
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func findAlbumsForUser(db *sql.DB, user *models.User, album_cache *AlbumScannerCache) ([]*models.Album, []error) {
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2020-02-21 20:51:50 +01:00
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2020-04-16 11:23:34 +02:00
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// Check if user directory exists on the file system
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if _, err := os.Stat(user.RootPath); err != nil {
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if os.IsNotExist(err) {
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2020-06-22 23:52:41 +02:00
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return nil, []error{errors.Errorf("Photo directory for user '%s' does not exist '%s'\n", user.Username, user.RootPath)}
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2020-04-16 11:23:34 +02:00
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} else {
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2020-06-22 23:52:41 +02:00
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return nil, []error{errors.Errorf("Could not read photo directory for user '%s': %s\n", user.Username, user.RootPath)}
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2020-04-16 11:23:34 +02:00
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}
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}
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2020-02-01 17:58:45 +01:00
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type scanInfo struct {
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path string
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parentId *int
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}
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scanQueue := list.New()
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scanQueue.PushBack(scanInfo{
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path: user.RootPath,
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parentId: nil,
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})
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2020-06-22 23:52:41 +02:00
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userAlbums := make([]*models.Album, 0)
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albumErrors := make([]error, 0)
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// newPhotos := make([]*models.Photo, 0)
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2020-02-26 21:23:13 +01:00
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2020-02-01 17:58:45 +01:00
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for scanQueue.Front() != nil {
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albumInfo := scanQueue.Front().Value.(scanInfo)
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scanQueue.Remove(scanQueue.Front())
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albumPath := albumInfo.path
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albumParentId := albumInfo.parentId
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// Read path
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dirContent, err := ioutil.ReadDir(albumPath)
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if err != nil {
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2020-06-22 23:52:41 +02:00
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albumErrors = append(albumErrors, errors.Wrapf(err, "read directory (%s)", albumPath))
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2020-02-23 11:59:57 +01:00
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continue
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2020-02-01 17:58:45 +01:00
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}
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2020-06-22 23:52:41 +02:00
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tx, err := db.Begin()
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2020-02-01 17:58:45 +01:00
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if err != nil {
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2020-06-22 23:52:41 +02:00
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albumErrors = append(albumErrors, errors.Wrap(err, "begin database transaction"))
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2020-02-23 11:59:57 +01:00
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continue
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2020-02-01 17:58:45 +01:00
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}
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log.Printf("Scanning directory: %s", albumPath)
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// Make album if not exists
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albumTitle := path.Base(albumPath)
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_, err = tx.Exec("INSERT IGNORE INTO album (title, parent_album, owner_id, path) VALUES (?, ?, ?, ?)", albumTitle, albumParentId, user.UserID, albumPath)
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if err != nil {
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2020-06-22 23:52:41 +02:00
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albumErrors = append(albumErrors, errors.Wrap(err, "insert album into database"))
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2020-02-01 17:58:45 +01:00
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tx.Rollback()
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2020-02-23 11:59:57 +01:00
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continue
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2020-02-01 17:58:45 +01:00
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}
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2020-06-22 21:52:53 +02:00
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row := tx.QueryRow("SELECT * FROM album WHERE path = ?", albumPath)
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album, err := models.NewAlbumFromRow(row)
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if err != nil {
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2020-06-22 23:52:41 +02:00
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albumErrors = append(albumErrors, errors.Wrapf(err, "get album from database (%s)", albumPath))
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2020-02-01 17:58:45 +01:00
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tx.Rollback()
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2020-06-22 23:52:41 +02:00
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continue
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2020-02-01 17:58:45 +01:00
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}
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2020-06-22 23:52:41 +02:00
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userAlbums = append(userAlbums, album)
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2020-02-01 17:58:45 +01:00
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2020-02-02 18:18:38 +01:00
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// Commit album transaction
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if err := tx.Commit(); err != nil {
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2020-06-22 23:52:41 +02:00
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albumErrors = append(albumErrors, errors.Wrap(err, "commit database transaction"))
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continue
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2020-02-01 17:58:45 +01:00
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}
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// Scan for sub-albums
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for _, item := range dirContent {
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subalbumPath := path.Join(albumPath, item.Name())
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2020-03-07 15:34:32 +01:00
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// Skip if directory is hidden
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if path.Base(subalbumPath)[0:1] == "." {
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continue
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}
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2020-06-22 23:52:41 +02:00
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if item.IsDir() && directoryContainsPhotos(subalbumPath, album_cache) {
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2020-02-01 17:58:45 +01:00
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scanQueue.PushBack(scanInfo{
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path: subalbumPath,
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2020-06-22 21:52:53 +02:00
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parentId: &album.AlbumID,
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2020-02-01 17:58:45 +01:00
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})
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}
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}
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}
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2020-06-22 23:52:41 +02:00
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deleteErrors := deleteOldUserAlbums(db, userAlbums, user)
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albumErrors = append(albumErrors, deleteErrors...)
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2020-02-26 19:44:47 +01:00
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2020-06-22 23:52:41 +02:00
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return userAlbums, albumErrors
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2020-02-01 17:58:45 +01:00
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}
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2020-06-22 23:52:41 +02:00
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func directoryContainsPhotos(rootPath string, cache *AlbumScannerCache) bool {
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2020-02-12 18:45:58 +01:00
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2020-06-22 23:52:41 +02:00
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if contains_image := cache.AlbumContainsPhotos(rootPath); contains_image != nil {
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2020-02-12 18:45:58 +01:00
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return *contains_image
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}
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2020-02-01 17:58:45 +01:00
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scanQueue := list.New()
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scanQueue.PushBack(rootPath)
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2020-02-12 18:45:58 +01:00
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scanned_directories := make([]string, 0)
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2020-02-01 17:58:45 +01:00
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for scanQueue.Front() != nil {
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dirPath := scanQueue.Front().Value.(string)
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scanQueue.Remove(scanQueue.Front())
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2020-02-12 18:45:58 +01:00
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scanned_directories = append(scanned_directories, dirPath)
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2020-02-01 17:58:45 +01:00
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dirContent, err := ioutil.ReadDir(dirPath)
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if err != nil {
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2020-02-23 11:59:57 +01:00
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ScannerError("Could not read directory: %s\n", err.Error())
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2020-02-01 17:58:45 +01:00
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return false
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}
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for _, fileInfo := range dirContent {
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filePath := path.Join(dirPath, fileInfo.Name())
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if fileInfo.IsDir() {
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scanQueue.PushBack(filePath)
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} else {
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2020-02-09 14:21:53 +01:00
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if isPathImage(filePath, cache) {
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2020-06-22 23:52:41 +02:00
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cache.InsertAlbumPaths(dirPath, rootPath, true)
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2020-02-01 17:58:45 +01:00
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return true
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}
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}
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}
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}
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2020-02-12 18:45:58 +01:00
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for _, scanned_path := range scanned_directories {
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2020-06-22 23:52:41 +02:00
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cache.InsertAlbumPath(scanned_path, false)
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2020-02-12 18:45:58 +01:00
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}
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2020-02-01 17:58:45 +01:00
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return false
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}
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2020-02-12 18:10:52 +01:00
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2020-06-22 23:52:41 +02:00
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func deleteOldUserAlbums(db *sql.DB, scannedAlbums []*models.Album, user *models.User) []error {
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if len(scannedAlbums) == 0 {
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return nil
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2020-02-27 16:26:53 +01:00
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}
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2020-06-22 23:52:41 +02:00
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albumPaths := make([]interface{}, len(scannedAlbums))
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for i, album := range scannedAlbums {
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albumPaths[i] = album.AlbumID
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2020-02-12 18:10:52 +01:00
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}
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2020-03-10 18:30:23 +01:00
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// Delete old albums
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album_args := make([]interface{}, 0)
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album_args = append(album_args, user.UserID)
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2020-06-22 23:52:41 +02:00
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album_args = append(album_args, albumPaths...)
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2020-02-12 18:19:16 +01:00
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2020-06-22 23:52:41 +02:00
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albums_questions := strings.Repeat("?,", len(albumPaths))[:len(albumPaths)*2-1]
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rows, err := db.Query("SELECT album_id FROM album WHERE album.owner_id = ? AND path NOT IN ("+albums_questions+")", album_args...)
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2020-02-12 18:10:52 +01:00
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if err != nil {
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2020-06-22 23:52:41 +02:00
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return []error{errors.Wrap(err, "get albums to be deleted from database")}
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2020-02-12 18:10:52 +01:00
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}
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2020-02-29 09:21:41 +01:00
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defer rows.Close()
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2020-02-12 18:10:52 +01:00
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2020-06-22 23:52:41 +02:00
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deleteErrors := make([]error, 0)
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2020-03-10 18:30:23 +01:00
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deleted_album_ids := make([]interface{}, 0)
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2020-02-12 18:10:52 +01:00
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for rows.Next() {
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var album_id int
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2020-02-26 21:23:13 +01:00
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if err := rows.Scan(&album_id); err != nil {
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2020-06-22 23:52:41 +02:00
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deleteErrors = append(deleteErrors, errors.Wrapf(err, "parse album to be removed (album_id %d)", album_id))
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continue
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2020-02-26 21:23:13 +01:00
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}
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2020-03-10 18:30:23 +01:00
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deleted_album_ids = append(deleted_album_ids, album_id)
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2020-02-26 21:23:13 +01:00
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cache_path := path.Join("./photo_cache", strconv.Itoa(album_id))
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2020-02-12 18:10:52 +01:00
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err := os.RemoveAll(cache_path)
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if err != nil {
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2020-06-22 23:52:41 +02:00
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deleteErrors = append(deleteErrors, errors.Wrapf(err, "delete unused cache folder (%s)", cache_path))
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2020-02-12 18:10:52 +01:00
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}
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}
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2020-03-10 18:30:23 +01:00
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if len(deleted_album_ids) > 0 {
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albums_questions = strings.Repeat("?,", len(deleted_album_ids))[:len(deleted_album_ids)*2-1]
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2020-02-26 19:44:47 +01:00
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2020-06-22 23:52:41 +02:00
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if _, err := db.Exec("DELETE FROM album WHERE album_id IN ("+albums_questions+")", deleted_album_ids...); err != nil {
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2020-02-26 19:44:47 +01:00
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ScannerError("Could not delete old albums from database:\n%s\n", err)
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2020-06-22 23:52:41 +02:00
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deleteErrors = append(deleteErrors, errors.Wrap(err, "delete old albums from database"))
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2020-02-12 18:10:52 +01:00
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}
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2020-03-10 18:30:23 +01:00
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}
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2020-06-22 23:52:41 +02:00
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return deleteErrors
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2020-02-12 18:10:52 +01:00
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}
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2020-02-23 11:59:57 +01:00
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2020-06-22 23:52:41 +02:00
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// func cleanupCache(database *sql.DB, cache *ScannerCache, user *models.User) {
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// // Delete old photos
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// photo_args := make([]interface{}, 0)
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// photo_args = append(photo_args, user.UserID)
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// photo_args = append(photo_args, cache.photo_paths_scanned...)
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// photo_questions := strings.Repeat("?,", len(cache.photo_paths_scanned))[:len(cache.photo_paths_scanned)*2-1]
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// rows, err = database.Query(`
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// SELECT photo.photo_id as photo_id, album.album_id as album_id FROM photo JOIN album ON photo.album_id = album.album_id
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// WHERE album.owner_id = ? AND photo.path NOT IN (`+photo_questions+`)
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// `, photo_args...)
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// if err != nil {
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// ScannerError("Could not get deleted photos from database: %s\n", err)
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// return
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// }
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// defer rows.Close()
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// deleted_photo_ids := make([]interface{}, 0)
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// for rows.Next() {
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// var photo_id int
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// var album_id int
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// if err := rows.Scan(&photo_id, &album_id); err != nil {
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// ScannerError("Could not parse photo to be removed (album_id %d, photo_id %d): %s\n", album_id, photo_id, err)
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// }
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// deleted_photo_ids = append(deleted_photo_ids, photo_id)
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// cache_path := path.Join("./photo_cache", strconv.Itoa(album_id), strconv.Itoa(photo_id))
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// err := os.RemoveAll(cache_path)
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// if err != nil {
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// ScannerError("Could not delete unused cache photo folder: %s\n%s\n", cache_path, err)
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// }
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// }
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// if len(deleted_photo_ids) > 0 {
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// photo_questions = strings.Repeat("?,", len(deleted_photo_ids))[:len(deleted_photo_ids)*2-1]
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// if _, err := database.Exec("DELETE FROM photo WHERE photo_id IN ("+photo_questions+")", deleted_photo_ids...); err != nil {
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// ScannerError("Could not delete old photos from database:\n%s\n", err)
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// }
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// }
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// if len(deleted_album_ids) > 0 || len(deleted_photo_ids) > 0 {
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// timeout := 3000
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// notification.BroadcastNotification(&models.Notification{
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// Key: utils.GenerateToken(),
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// Type: models.NotificationTypeMessage,
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// Header: "Deleted old photos",
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// Content: fmt.Sprintf("Deleted %d albums and %d photos, that was not found on disk", len(deleted_album_ids), len(deleted_photo_ids)),
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// Timeout: &timeout,
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// })
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// }
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// }
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2020-02-23 11:59:57 +01:00
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func ScannerError(format string, args ...interface{}) {
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message := fmt.Sprintf(format, args...)
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log.Printf("ERROR: %s", message)
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notification.BroadcastNotification(&models.Notification{
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Key: utils.GenerateToken(),
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Type: models.NotificationTypeMessage,
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Header: "Scanner error",
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Content: message,
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Negative: true,
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})
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}
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2020-02-23 12:43:45 +01:00
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func PhotoCache() string {
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photoCache := os.Getenv("PHOTO_CACHE")
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if photoCache == "" {
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photoCache = "./photo_cache"
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}
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return photoCache
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}
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