Direct proxy works

_utils/read_current_data.go

@@ -0,0 +1,21 @@
+package utils
+
+import "io"
+
+const readCurrentDataBufferSize = 1024 + 1 // + 1 because telegram operates with blocks mod 4
+
+// ReadCurrentData reads all data from io.Reader which is ready to be read.
+func ReadCurrentData(src io.Reader) (rv []byte, err error) {
+	buf := make([]byte, readCurrentDataBufferSize)
+	n := readCurrentDataBufferSize
+
+	for n == len(buf) {
+		n, err = src.Read(buf)
+		if err != nil {
+			return nil, err
+		}
+		rv = append(rv, buf[:n]...)
+	}
+
+	return rv, nil
+}