Proper support for changing User-Agents from IEs

[youtube-dl] / youtube_dl / utils.py

diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 91e1803265dd88d3c50943c44cbb598fd4a139b1..08be9e6373f6d4129327a6125b7d3b8c863273c0 100644 (file)
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -8,6 +8,7 @@ import locale
 import os
 import re
 import sys
+import traceback
 import zlib
 import email.utils
 import json
@@ -414,12 +415,15 @@ def encodeFilename(s):
 class ExtractorError(Exception):
     """Error during info extraction."""
     def __init__(self, msg, tb=None):
-        """ tb is the original traceback (so that it can be printed out) """
+        """ tb, if given, is the original traceback (so that it can be printed out). """
         super(ExtractorError, self).__init__(msg)
-        if tb is None:
-            tb = sys.exc_info()[2]
         self.traceback = tb
 
+    def format_traceback(self):
+        if self.traceback is None:
+            return None
+        return u''.join(traceback.format_tb(self.traceback))
+
 
 class DownloadError(Exception):
     """Download Error exception.
@@ -446,7 +450,8 @@ class PostProcessingError(Exception):
     This exception may be raised by PostProcessor's .run() method to
     indicate an error in the postprocessing task.
     """
-    pass
+    def __init__(self, msg):
+        self.msg = msg
 
 class MaxDownloadsReached(Exception):
     """ --max-downloads limit has been reached. """
@@ -519,6 +524,11 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
             if 'Accept-encoding' in req.headers:
                 del req.headers['Accept-encoding']
             del req.headers['Youtubedl-no-compression']
+        if 'Youtubedl-user-agent' in req.headers:
+            if 'User-Agent' in req.headers:
+                del req.headers['User-Agent']
+            req.headers['User-Agent'] = req.headers['Youtubedl-user-agent']
+            del req.headers['Youtubedl-user-agent']
         return req
 
     def http_response(self, req, resp):