photoprism/internal/workers/share.go

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package workers
import (
"fmt"
"path/filepath"
"runtime/debug"
"github.com/photoprism/photoprism/internal/config"
"github.com/photoprism/photoprism/internal/entity"
"github.com/photoprism/photoprism/internal/form"
"github.com/photoprism/photoprism/internal/mutex"
"github.com/photoprism/photoprism/internal/photoprism"
"github.com/photoprism/photoprism/internal/query"
"github.com/photoprism/photoprism/internal/remote"
"github.com/photoprism/photoprism/internal/remote/webdav"
"github.com/photoprism/photoprism/internal/thumb"
)
// Share represents a share worker.
type Share struct {
conf *config.Config
}
// NewShare returns a new share worker.
func NewShare(conf *config.Config) *Share {
return &Share{conf: conf}
}
// logError logs an error message if err is not nil.
func (worker *Share) logError(err error) {
if err != nil {
log.Errorf("share: %s", err.Error())
}
}
// Start starts the share worker.
func (worker *Share) Start() (err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("share: %s (panic)\nstack: %s", r, debug.Stack())
log.Error(err)
}
}()
if err := mutex.ShareWorker.Start(); err != nil {
return err
}
defer mutex.ShareWorker.Stop()
f := form.AccountSearch{
Share: true,
}
// Find accounts for which sharing is enabled
accounts, err := query.AccountSearch(f)
// Upload newly shared files
for _, a := range accounts {
if mutex.ShareWorker.Canceled() {
return nil
}
if a.AccType != remote.ServiceWebDAV {
continue
}
files, err := query.FileShares(a.ID, entity.FileShareNew)
if err != nil {
worker.logError(err)
continue
}
if len(files) == 0 {
// No files to upload for this account
continue
}
client := webdav.New(a.AccURL, a.AccUser, a.AccPass)
existingDirs := make(map[string]string)
for _, file := range files {
if mutex.ShareWorker.Canceled() {
return nil
}
dir := filepath.Dir(file.RemoteName)
if _, ok := existingDirs[dir]; !ok {
if err := client.CreateDir(dir); err != nil {
log.Errorf("share: failed creating folder %s", dir)
continue
}
}
srcFileName := photoprism.FileName(file.File.FileRoot, file.File.FileName)
if a.ShareSize != "" {
thumbType, ok := thumb.Types[a.ShareSize]
if !ok {
log.Errorf("share: invalid size %s", a.ShareSize)
continue
}
srcFileName, err = thumb.FromFile(srcFileName, file.File.FileHash, worker.conf.ThumbPath(), thumbType.Width, thumbType.Height, thumbType.Options...)
if err != nil {
worker.logError(err)
continue
}
}
if err := client.Upload(srcFileName, file.RemoteName); err != nil {
worker.logError(err)
file.Errors++
file.Error = err.Error()
} else {
log.Infof("share: uploaded %s to %s", file.RemoteName, a.AccName)
file.Errors = 0
file.Error = ""
file.Status = entity.FileShareShared
}
if a.RetryLimit >= 0 && file.Errors > a.RetryLimit {
file.Status = entity.FileShareError
}
if mutex.ShareWorker.Canceled() {
return nil
}
worker.logError(entity.Db().Save(&file).Error)
}
}
// Remove previously shared files if expired
for _, a := range accounts {
if mutex.ShareWorker.Canceled() {
return nil
}
if a.AccType != remote.ServiceWebDAV {
continue
}
files, err := query.ExpiredFileShares(a)
if err != nil {
worker.logError(err)
continue
}
if len(files) == 0 {
// No files to remove for this account
continue
}
client := webdav.New(a.AccURL, a.AccUser, a.AccPass)
for _, file := range files {
if mutex.ShareWorker.Canceled() {
return nil
}
if err := client.Delete(file.RemoteName); err != nil {
file.Errors++
file.Error = err.Error()
} else {
log.Infof("share: removed %s from %s", file.RemoteName, a.AccName)
file.Errors = 0
file.Error = ""
file.Status = entity.FileShareRemoved
}
if err := entity.Db().Save(&file).Error; err != nil {
worker.logError(err)
}
}
}
return err
}