// InitAssetsTemplates initializes the router to use either a ricebox or the
// filesystem in case the ricebox couldn't be found.
func InitAssetsTemplates(r *gin.Engine, tbox, abox *rice.Box, verbose bool, names ...string) error {
var err error
if tbox != nil {
mt := multitemplate.New()
var tmpl string
var message *template.Template
for _, x := range names {
if tmpl, err = tbox.String(x); err != nil {
return err
}
if message, err = template.New(x).Parse(tmpl); err != nil {
return err
}
mt.Add(x, message)
}
logger.Debug("server", "Loaded templates from \"templates\" box")
r.HTMLRender = mt
} else {
r.LoadHTMLGlob("templates/*")
logger.Debug("server", "Loaded templates from disk")
}
if abox != nil {
r.StaticFS("/static", abox.HTTPBox())
logger.Debug("server", "Loaded assets from \"assets\" box")
} else {
r.Static("/static", "assets")
logger.Debug("server", "Loaded assets from disk")
}
return nil
}
// Initialize loads the previous state of the statistics
func Initialize() error {
logger.Debug("server", "Started Initialize on statistics object")
var cfiles uint64
var csize uint64
var err error
err = database.DB.View(func(tx *bolt.Tx) error {
S.Decode(tx.Bucket([]byte("statistics")).Get([]byte("main")))
return tx.Bucket([]byte("resources")).ForEach(func(k, v []byte) error {
r := &Resource{}
if err = r.Decode(v); err != nil {
return err
}
csize += uint64(r.Size)
cfiles++
return nil
})
})
if err != nil {
logger.Err("server", "Could not initialize statistics")
return err
}
S.CurrentFiles = cfiles
S.CurrentSize = csize
logger.Info("server", fmt.Sprintf("Total %d (%s)", S.TotalFiles, utils.HumanBytes(S.TotalSize)))
logger.Info("server", fmt.Sprintf("Current %d (%s)", cfiles, utils.HumanBytes(csize)))
logger.Debug("server", "Done Initialize on statistics object")
return err
}
// Get retrives the Resource from the bucket
func (r *Resource) Get(key string) error {
logger.Debug("server", "Started Get on Resource", key)
err := database.DB.View(func(tx *bolt.Tx) error {
return r.Decode(tx.Bucket([]byte("resources")).Get([]byte(key)))
})
logger.Debug("server", "Done Get on Resource", key)
return err
}
// Monit monitors the database and file system to remove old entries
func Monit() {
logger.Info("monitoring", "Started Monitoring")
var err error
tc := time.NewTicker(1 * time.Minute)
for {
logger.Debug("monitoring", "Started Monit on Resources")
now := time.Now()
found := 0
var sizeRemoved uint64
err = database.DB.Update(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte("resources"))
err = b.ForEach(func(k, v []byte) error {
var err error
r := &models.Resource{}
if err = r.Decode(v); err != nil {
return err
}
if r.DeleteAt.Before(now) {
if err = b.Delete([]byte(r.Key)); err != nil {
logger.Err("monitoring", "While deleting entry (skipped)", err)
} else {
if err = os.Remove(path.Join(conf.C.UploadDir, r.Key)); err != nil {
logger.Err("monitoring", "While deleting file (skipped)", err)
} else {
found++
sizeRemoved += uint64(r.Size)
}
}
}
return nil
})
if err != nil {
return err
}
if found > 0 {
var data []byte
models.S.CurrentFiles -= uint64(found)
models.S.CurrentSize -= sizeRemoved
if data, err = models.S.Encode(); err != nil {
return err
}
return tx.Bucket([]byte("statistics")).Put([]byte("main"), data)
}
return nil
})
if err != nil {
logger.Err("monitoring", "While monitoring", err)
} else {
if found > 0 {
logger.Info("monitoring", fmt.Sprintf("Deleted %d entries and files in %s", found, time.Since(now)))
logger.Info("monitoring", fmt.Sprintf("Serving %d (%s) files", models.S.CurrentFiles, utils.HumanBytes(models.S.CurrentSize)))
}
logger.Debug("monitoring", fmt.Sprintf("Serving %d (%s) files", models.S.CurrentFiles, utils.HumanBytes(models.S.CurrentSize)))
}
logger.Debug("monitoring", fmt.Sprintf("Done Monit on Resources (%s)", time.Since(now)))
<-tc.C
}
}
// Save writes the Resource to the bucket
func (s Statistics) Save() error {
logger.Debug("server", "Started Save on statistics object")
var err error
var data []byte
if data, err = s.Encode(); err != nil {
return err
}
err = database.DB.Update(func(tx *bolt.Tx) error {
return tx.Bucket([]byte("statistics")).Put([]byte("main"), data)
})
logger.Debug("server", "Done Save on statistics object")
return err
}
// Delete deletes a resource in database and on disk
func (r Resource) Delete() error {
logger.Debug("server", "Started Delete on Resource", r.Key)
var err error
err = database.DB.Update(func(tx *bolt.Tx) error {
if err = tx.Bucket([]byte("resources")).Delete([]byte(r.Key)); err != nil {
return err
}
S.CurrentFiles--
S.CurrentSize -= uint64(r.Size)
var data []byte
if data, err = S.Encode(); err != nil {
return err
}
return tx.Bucket([]byte("statistics")).Put([]byte("main"), data)
})
if err != nil {
return err
}
err = os.Remove(path.Join(conf.C.UploadDir, r.Key))
logger.Debug("server", "Done Delete on Resource", r.Key)
logger.Debug("server", fmt.Sprintf("Serving %d (%s) files", S.CurrentFiles, utils.HumanBytes(S.CurrentSize)))
return err
}
// Save writes the Resource to the bucket
func (r Resource) Save() error {
logger.Debug("server", "Started Save on Resource", r.Key)
var err error
var data []byte
if data, err = r.Encode(); err != nil {
return err
}
err = database.DB.Update(func(tx *bolt.Tx) error {
if err = tx.Bucket([]byte("resources")).Put([]byte(r.Key), data); err != nil {
return err
}
S.TotalFiles++
S.TotalSize += uint64(r.Size)
S.CurrentFiles++
S.CurrentSize += uint64(r.Size)
if data, err = S.Encode(); err != nil {
return err
}
return tx.Bucket([]byte("statistics")).Put([]byte("main"), data)
})
logger.Debug("server", "Done Save on Resource", r.Key)
return err
}