From 4128880cf2b6a99101797d3335985aeba11eee3d Mon Sep 17 00:00:00 2001
From: qydysky <32743305+qydysky@users.noreply.github.com>
Date: Tue, 25 Oct 2022 14:30:09 +0800
Subject: [PATCH] =?utf8?q?=E6=94=AF=E6=8C=81=E8=A7=86=E9=A2=91=E5=88=86?=
 =?utf8?q?=E6=AE=B5=E5=8A=A0=E8=BD=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

---
 Reply/F.go | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/Reply/F.go b/Reply/F.go
index e195352..dfbec86 100644
--- a/Reply/F.go
+++ b/Reply/F.go
@@ -1157,13 +1157,32 @@ func init() {
 						} else {
 							v += referer.Path
 						}
-						if p.Checkfile().IsExist(v + "0.flv") {
+						if file.New(v+"0.flv", 0, true).IsExist() {
 							v += "0.flv"
-						} else if p.Checkfile().IsExist(v + "0.mp4") {
+						} else if file.New(v+"0.mp4", 0, true).IsExist() {
 							v += "0.mp4"
 						}
 
-						f := file.New(v, 0, false)
+						var rangeHeaderNum int
+						if rangeHeader := r.Header.Get(`range`); rangeHeader != "" {
+							if strings.Index(rangeHeader, "bytes=") != 0 {
+								w.WriteHeader(http.StatusRequestedRangeNotSatisfiable)
+								flog.L(`W: `, `请求的范围不合法:仅支持bytes`)
+								return
+							} else if strings.Contains(rangeHeader, ",") && strings.Index(rangeHeader, "-") != len(rangeHeader)-1 {
+								w.WriteHeader(http.StatusRequestedRangeNotSatisfiable)
+								flog.L(`W: `, `请求的范围不合法:仅支持向后范围`)
+								return
+							} else if rangeHeaderNum, e = strconv.Atoi(string(rangeHeader[6 : len(rangeHeader)-1])); e != nil {
+								w.WriteHeader(http.StatusRequestedRangeNotSatisfiable)
+								flog.L(`W: `, `请求的范围不合法:`, e)
+								return
+							} else {
+								w.WriteHeader(http.StatusPartialContent)
+							}
+						}
+
+						f := file.New(v, int64(rangeHeaderNum), false)
 						defer f.Close()
 
 						if e := f.CopyToIoWriter(w, 1000000, true); e != nil {
-- 
2.39.2