feat: implement Model Context Protocol (MCP) server and download manager capabilities

cmd/gopeed/flags.go

@@ -7,9 +7,11 @@ import (
 )
 
 type args struct {
-	url         string
-	connections *int
-	dir         *string
+	url          string
+	connections  *int
+	dir          *string
+	checksum     *string
+	checksumAlgo *string
 }
 
 func parse() *args {
@@ -20,6 +22,8 @@ func parse() *args {
 	var args args
 	args.connections = flag.Int("C", 16, "Concurrent connections.")
 	args.dir = flag.String("D", dir, "Store directory.")
+	args.checksum = flag.String("checksum", "", "Expected checksum hash (hex encoded).")
+	args.checksumAlgo = flag.String("checksum-algo", "md5", "Checksum algorithm: md5, sha1, or sha256.")
 	flag.Parse()
 	t := flag.Args()
 	if len(t) > 0 {

cmd/gopeed/main.go

@@ -19,6 +19,18 @@ func main() {
 
 	var wg sync.WaitGroup
 	wg.Add(1)
+	var checksumOpt *base.ChecksumOption
+	if args.checksum != nil && *args.checksum != "" {
+		algo := "md5"
+		if args.checksumAlgo != nil && *args.checksumAlgo != "" {
+			algo = *args.checksumAlgo
+		}
+		checksumOpt = &base.ChecksumOption{
+			Algorithm: algo,
+			Expected:  *args.checksum,
+		}
+	}
+
 	_, err := download.Boot().
 		URL(args.url).
 		Listener(func(event *download.Event) {
@@ -43,8 +55,9 @@ func main() {
 			}
 		}).
 		Create(&base.Options{
-			Path:  *args.dir,
-			Extra: http.OptsExtra{Connections: *args.connections},
+			Path:     *args.dir,
+			Extra:    http.OptsExtra{Connections: *args.connections},
+			Checksum: checksumOpt,
 		})
 	if err != nil {
 		panic(err)