Initial YakPanel commit

class_v2/panel_video_V2.py

@@ -0,0 +1,62 @@
+#coding: utf-8
+# +-------------------------------------------------------------------
+# | YakPanel
+# +-------------------------------------------------------------------
+# | Copyright (c) 2015-2099 YakPanel(www.yakpanel.com) All rights reserved.
+# +-------------------------------------------------------------------
+# | Author: hwliang <2020-05-18>
+# +-------------------------------------------------------------------
+
+# +-------------------------------------------------------------------
+# | 流媒体模块
+# +-------------------------------------------------------------------
+
+import os,sys,re
+import mimetypes
+import public
+from YakPanel import Response
+
+def get_buff_size(file_size):
+    buff_size = 2097152
+    if file_size > 1073741824:
+        buff_size = 4194304
+    return buff_size
+
+def partial_response(path, start, end=None):
+    if not os.path.exists(path):
+        return Response("file not fount!",404)
+    file_size = os.path.getsize(path)
+    buff_size = get_buff_size(file_size)
+
+    if end is None:
+        end = start + buff_size - 1
+    end = min(end, file_size - 1)
+    end = min(end, start + buff_size - 1)
+    length = end - start + 1
+
+    with open(path, 'rb') as fd:
+        fd.seek(start)
+        bytes = fd.read(length)
+    assert len(bytes) == length
+
+    response = Response(bytes,206,mimetype=mimetypes.guess_type(path)[0],direct_passthrough=True,)
+    response.headers.add('Content-Range', 'bytes {0}-{1}/{2}'.format(start, end, file_size,),)
+    response.headers.add('Accept-Ranges', 'bytes')
+    return response
+
+def get_range(request):
+    range = request.headers.get('Range')
+    m = None
+    if range:
+        m = re.match(r'bytes=(?P<start>\d+)-(?P<end>\d+)?', range)
+    if m:
+        start = m.group('start')
+        end = m.group('end')
+        start = int(start)
+        if end is not None:
+            end = int(end)
+        return start, end
+    else:
+        return 0, None
+
+