Initial API and entities for link sharing

Signed-off-by: Michael Mayer <michael@liquidbytes.net>

internal/api/file.go

@@ -5,13 +5,15 @@ import (
 
 	"github.com/gin-gonic/gin"
 	"github.com/photoprism/photoprism/internal/config"
+	"github.com/photoprism/photoprism/internal/event"
 	"github.com/photoprism/photoprism/internal/query"
+	"github.com/photoprism/photoprism/pkg/txt"
 )
 
 // GET /api/v1/files/:hash
 //
 // Parameters:
-//   hash: string The sha1 hash of a file
+//   hash: string SHA-1 hash of the file
 func GetFile(router *gin.RouterGroup, conf *config.Config) {
 	router.GET("/files/:hash", func(c *gin.Context) {
 		if Unauthorized(c, conf) {
@@ -30,3 +32,37 @@ func GetFile(router *gin.RouterGroup, conf *config.Config) {
 		c.JSON(http.StatusOK, p)
 	})
 }
+
+// POST /api/v1/files/:hash/link
+//
+// Parameters:
+//   hash: string SHA-1 hash of the file
+func LinkFile(router *gin.RouterGroup, conf *config.Config) {
+	router.POST("/files/:hash/link", func(c *gin.Context) {
+		if Unauthorized(c, conf) {
+			c.AbortWithStatusJSON(http.StatusUnauthorized, ErrUnauthorized)
+			return
+		}
+
+		db := conf.Db()
+		q := query.New(db)
+
+		m, err := q.FileByUUID(c.Param("hash"))
+
+		if err != nil {
+			c.AbortWithStatusJSON(http.StatusNotFound, ErrAlbumNotFound)
+			return
+		}
+
+		if link, err := newLink(c); err != nil {
+			c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": txt.UcFirst(err.Error())})
+			return
+		} else {
+			db.Model(&m).Association("Links").Append(link)
+		}
+
+		event.Success("created file share link")
+
+		c.JSON(http.StatusOK, m)
+	})
+}