func processFile(req uploadRequest, db *database.DB, store *storage.Store) {
defer req.file.Close()
epub, err := openMultipartEpub(req.file)
if err != nil {
log.Warn("Not valid epub uploaded file ", req.filename, ": ", err)
return
}
defer epub.Close()
book, id := parseFile(epub, store)
req.file.Seek(0, 0)
size, err := store.Store(id, req.file, EPUB_FILE)
if err != nil {
log.Error("Error storing book (", id, "): ", err)
return
}
book["filesize"] = size
err = db.AddBook(book)
if err != nil {
log.Error("Error storing metadata (", id, "): ", err)
return
}
log.Info("File uploaded: ", req.filename)
}
func storeImg(img io.Reader, id string, store *storage.Store) bool {
/* open the files */
fBig, err := store.Create(id, COVER_FILE)
if err != nil {
log.Error("Error creating cover ", id, ": ", err.Error())
return false
}
defer fBig.Close()
fSmall, err := store.Create(id, COVER_SMALL_FILE)
if err != nil {
log.Error("Error creating small cover ", id, ": ", err.Error())
return false
}
defer fSmall.Close()
/* resize img */
var img2 bytes.Buffer
img1 := io.TeeReader(img, &img2)
jpgOptions := jpeg.Options{IMG_QUALITY}
imgResized, err := resizeImg(img1, IMG_WIDTH_BIG)
if err != nil {
log.Error("Error resizing big image: ", err.Error())
return false
}
err = jpeg.Encode(fBig, imgResized, &jpgOptions)
if err != nil {
log.Error("Error encoding big image: ", err.Error())
return false
}
imgSmallResized, err := resizeImg(&img2, IMG_WIDTH_SMALL)
if err != nil {
log.Error("Error resizing small image: ", err.Error())
return false
}
err = jpeg.Encode(fSmall, imgSmallResized, &jpgOptions)
if err != nil {
log.Error("Error encoding small image: ", err.Error())
return false
}
return true
}