photoprism/internal/api/photo_thumbnail.go

78 lines
2.3 KiB
Go
Raw Normal View History

package api
import (
"fmt"
"net/http"
"path"
"github.com/gin-gonic/gin"
"github.com/photoprism/photoprism/internal/config"
"github.com/photoprism/photoprism/internal/file"
"github.com/photoprism/photoprism/internal/query"
"github.com/photoprism/photoprism/internal/thumb"
)
// GET /api/v1/thumbnails/:hash/:type
//
// Parameters:
// hash: string The file hash as returned by the search API
// type: string Thumbnail type, see photoprism.ThumbnailTypes
func GetThumbnail(router *gin.RouterGroup, conf *config.Config) {
router.GET("/thumbnails/:hash/:type", func(c *gin.Context) {
fileHash := c.Param("hash")
typeName := c.Param("type")
thumbType, ok := thumb.Types[typeName]
if !ok {
log.Errorf("invalid type: %s", typeName)
c.Data(http.StatusBadRequest, "image/svg+xml", photoIconSvg)
return
}
q := query.New(conf.OriginalsPath(), conf.Db())
f, err := q.FindFileByHash(fileHash)
if err != nil {
c.AbortWithStatusJSON(http.StatusNotFound, gin.H{"error": err.Error()})
return
}
fileName := path.Join(conf.OriginalsPath(), f.FileName)
if !file.Exists(fileName) {
log.Errorf("could not find original for thumbnail: %s", fileName)
c.Data(http.StatusNotFound, "image/svg+xml", photoIconSvg)
// Set missing flag so that the file doesn't show up in search results anymore
f.FileMissing = true
conf.Db().Save(&f)
return
}
// Use original file if thumb size exceeds limit, see https://github.com/photoprism/photoprism/issues/157
if thumbType.Height > thumb.MaxHeight || thumbType.Width > thumb.MaxWidth {
log.Debugf("photo: using original, thumbnail size exceeds limit (width %d, height %d)", thumbType.Width, thumbType.Height)
if c.Query("download") != "" {
c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=%s", f.DownloadFileName()))
}
c.File(fileName)
return
}
if thumbnail, err := thumb.FromFile(fileName, f.FileHash, conf.ThumbnailsPath(), thumbType.Width, thumbType.Height, thumbType.Options...); err == nil {
if c.Query("download") != "" {
c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=%s", f.DownloadFileName()))
}
c.File(thumbnail)
} else {
log.Errorf("could not create thumbnail: %s", err)
c.Data(http.StatusBadRequest, "image/svg+xml", photoIconSvg)
}
})
}