Switch to gofrs/uuid

github.com/satori/go.uuid is unmaintained and contains
several critical flaws.

Author: foxcpp

go.mod

@@ -1,7 +1,7 @@
 module github.com/foxcpp/filedrop
 
 require (
+	github.com/gofrs/uuid/v3 v3.1.1
 	github.com/mattn/go-sqlite3 v1.9.0
 	github.com/pkg/errors v0.8.0
-	github.com/satori/go.uuid v1.2.0
 )

go.sum

@@ -1,6 +1,6 @@
+github.com/gofrs/uuid/v3 v3.1.1 h1:sqMK0jjyOJ7HV36lwG2GZ6TD2hK8RB7dJQVDakI65U4=
+github.com/gofrs/uuid/v3 v3.1.1/go.mod h1:xPwMqoocQ1L5G6pXX5BcE7N5jlzn2o19oqAKxwZW/kI=
 github.com/mattn/go-sqlite3 v1.9.0 h1:pDRiWfl+++eC2FEFRy6jXmQlvp4Yh3z1MJKg4UeYM/4=
 github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
 github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww=
-github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=

server.go

@@ -12,8 +12,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/gofrs/uuid/v3"
 	"github.com/pkg/errors"
-	"github.com/satori/go.uuid"
 )
 
 var ErrFileDoesntExists = errors.New("file doesn't exists")
@@ -44,10 +44,13 @@ func New(conf Config) (*Server, error) {
 // AddFile adds file to storage and returns assigned UUID which can be directly
 // substituted into URL.
 func (s *Server) AddFile(contents io.Reader, contentType string, maxUses uint, storeUntil time.Time) (string, error) {
-	fileUUID := uuid.NewV4()
+	fileUUID, err := uuid.NewV4()
+	if err != nil {
+		return "", errors.Wrap(err, "UUID generation")
+	}
 	outLocation := filepath.Join(s.Conf.StorageDir, fileUUID.String())
 
-	_, err := os.Stat(outLocation)
+	_, err = os.Stat(outLocation)
 	if err == nil {
 		return "", errors.New("UUID collision detected")
 	}