forgot to close channels after use.

internal/utils/utils.go

@@ -22,7 +22,7 @@ var DcList = DCOptions{
 		2: {{"149.154.167.50:443", false}},
 		3: {{"149.154.175.100:443", false}},
 		4: {{"149.154.167.91:443", false},
-			{"[2001:067c:04e8:f002::a]:443", true}},
+			{"[2001:067c:04e8:f002::a]:443", true}}, // THIS IS DC2 IPv6
 		5: {{"91.108.56.151:443", false}},
 	},
 	TestDCs: map[int]string{
@@ -32,6 +32,8 @@ var DcList = DCOptions{
 	},
 }
 
+// TODO: Fix DC4 Ipv6 is Unreachable
+
 type DC struct {
 	Addr string
 	V    bool

telegram/helpers.go

@@ -20,38 +20,11 @@ import (
 	"github.com/pkg/errors"
 )
 
-var DataCenters = map[int]string{
-	1: "149.154.175.58:443",
-	2: "149.154.167.50:443",
-	3: "149.154.175.100:443",
-	4: "149.154.167.91:443",
-	5: "91.108.56.151:443",
-}
-
-var TestDataCenters = map[int]string{
-	1: "149.154.175.10:443",
-	2: "149.154.167.40:443",
-	3: "149.154.175.117:443",
-}
-
 func FileExists(path string) bool {
 	_, err := os.Stat(path)
 	return err == nil
 }
 
-func GetHostIp(dcID int, test bool) string {
-	if test {
-		if ip, ok := TestDataCenters[dcID]; ok {
-			return ip
-		}
-	}
-
-	if ip, ok := DataCenters[dcID]; ok {
-		return ip
-	}
-	panic("invalid dc-id provided")
-}
-
 func joinAbsWorkingDir(filename string) string {
 	if filename == "" {
 		filename = "session.dat" // default filename for session file

telegram/media.go

@@ -294,6 +294,9 @@ func (c *Client) UploadFile(src interface{}, Opts ...*UploadOptions) (InputFile,
 		}
 	}
 
+	close(sem)
+	close(progressTicker)
+
 	if opts.ProgressManager != nil {
 		opts.ProgressManager.editFunc(size, size)
 	}