use global commandline arguments to disable type detection by header

files/utils.go

@@ -5,7 +5,7 @@ import (
 	"unicode/utf8"
 )
 
-func isBinary(content []byte, _ int) bool {
+func isBinary(content []byte) bool {
 	maybeStr := string(content)
 	runeCnt := utf8.RuneCount(content)
 	runeIndex := 0

http/data.go

@@ -47,13 +47,9 @@ func (d *data) Check(path string) bool {
 	return allow
 }
 
-func (d *data) IsTypeDetectDisabled(path string) bool {
+// ReadHeader implements rules.ReadHeader.
-	for _, rule := range d.user.DisableTypeDetections {
+func (d *data) ReadHeader() bool {
-		if rule.Matches(path) {
+	return d.server.TypeDetectionByHeader
-			return true
-		}
-	}
-	return false
 }
 
 func handle(fn handleFunc, prefix string, store *storage.Storage, server *settings.Server) http.Handler {

rules/rules.go

@@ -9,7 +9,7 @@ import (
 // Checker is a Rules checker.
 type Checker interface {
 	Check(path string) bool
-	IsTypeDetectDisabled(path string) bool
+	ReadHeader() bool
 }
 
 // Rule is a allow/disallow rule.

settings/settings.go

@@ -41,6 +41,7 @@ type Server struct {
 	EnableThumbnails      bool   `json:"enableThumbnails"`
 	ResizePreview         bool   `json:"resizePreview"`
 	EnableExec            bool   `json:"enableExec"`
+	TypeDetectionByHeader bool   `json:"typeDetectionByHeader"`
 }
 
 // Clean cleans any variables that might need cleaning.