X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fdownloader%2Fhttp.py;h=af405b9509572bfd42bb11bd48bec5300d8105b3;hb=9218a6b4f5292cc3d7761484e6b5dbe1e7a1a998;hp=6dec528f268c9da4eb8ac534b2da8f247ec7cf4b;hpb=a91a2c1a83fdd195e850d4ad9c298c01a145ebf0;p=youtube-dl

diff --git a/youtube_dl/downloader/http.py b/youtube_dl/downloader/http.py
index 6dec528f2..af405b950 100644
--- a/youtube_dl/downloader/http.py
+++ b/youtube_dl/downloader/http.py
@@ -1,20 +1,21 @@
 from __future__ import unicode_literals
 
+import errno
 import os
+import socket
 import time
-
-from socket import error as SocketError
-import errno
+import re
 
 from .common import FileDownloader
-from ..compat import (
-    compat_urllib_request,
-    compat_urllib_error,
-)
+from ..compat import compat_urllib_error
 from ..utils import (
     ContentTooShortError,
     encodeFilename,
     sanitize_open,
+    sanitized_Request,
+    write_xattr,
+    XAttrMetadataError,
+    XAttrUnavailableError,
 )
 
 
@@ -29,13 +30,8 @@ class HttpFD(FileDownloader):
         add_headers = info_dict.get('http_headers')
         if add_headers:
             headers.update(add_headers)
-        data = info_dict.get('http_post_data')
-        http_method = info_dict.get('http_method')
-        basic_request = compat_urllib_request.Request(url, data, headers)
-        request = compat_urllib_request.Request(url, data, headers)
-        if http_method is not None:
-            basic_request.get_method = lambda: http_method
-            request.get_method = lambda: http_method
+        basic_request = sanitized_Request(url, None, headers)
+        request = sanitized_Request(url, None, headers)
 
         is_test = self.params.get('test', False)
 
@@ -50,7 +46,7 @@ class HttpFD(FileDownloader):
 
         open_mode = 'wb'
         if resume_len != 0:
-            if self.params.get('continuedl', False):
+            if self.params.get('continuedl', True):
                 self.report_resuming_byte(resume_len)
                 request.add_header('Range', 'bytes=%d-' % resume_len)
                 open_mode = 'ab'
@@ -63,6 +59,24 @@ class HttpFD(FileDownloader):
             # Establish connection
             try:
                 data = self.ydl.urlopen(request)
+                # When trying to resume, Content-Range HTTP header of response has to be checked
+                # to match the value of requested Range HTTP header. This is due to a webservers
+                # that don't support resuming and serve a whole file with no Content-Range
+                # set in response despite of requested Range (see
+                # https://github.com/rg3/youtube-dl/issues/6057#issuecomment-126129799)
+                if resume_len > 0:
+                    content_range = data.headers.get('Content-Range')
+                    if content_range:
+                        content_range_m = re.search(r'bytes (\d+)-', content_range)
+                        # Content-Range is present and matches requested Range, resume is possible
+                        if content_range_m and resume_len == int(content_range_m.group(1)):
+                            break
+                    # Content-Range is either not present or invalid. Assuming remote webserver is
+                    # trying to send the whole file, resume is not possible, so wiping the local file
+                    # and performing entire redownload
+                    self.report_unable_to_resume()
+                    resume_len = 0
+                    open_mode = 'wb'
                 break
             except (compat_urllib_error.HTTPError, ) as err:
                 if (err.code < 500 or err.code >= 600) and err.code != 416:
@@ -93,6 +107,8 @@ class HttpFD(FileDownloader):
                             self._hook_progress({
                                 'filename': filename,
                                 'status': 'finished',
+                                'downloaded_bytes': resume_len,
+                                'total_bytes': resume_len,
                             })
                             return True
                         else:
@@ -101,7 +117,7 @@ class HttpFD(FileDownloader):
                             resume_len = 0
                             open_mode = 'wb'
                             break
-            except SocketError as e:
+            except socket.error as e:
                 if e.errno != errno.ECONNRESET:
                     # Connection reset is no problem, just retry
                     raise
@@ -127,8 +143,8 @@ class HttpFD(FileDownloader):
 
         if data_len is not None:
             data_len = int(data_len) + resume_len
-            min_data_len = self.params.get("min_filesize", None)
-            max_data_len = self.params.get("max_filesize", None)
+            min_data_len = self.params.get('min_filesize')
+            max_data_len = self.params.get('max_filesize')
             if min_data_len is not None and data_len < min_data_len:
                 self.to_screen('\r[download] File is smaller than min-filesize (%s bytes < %s bytes). Aborting.' % (data_len, min_data_len))
                 return False
@@ -166,9 +182,8 @@ class HttpFD(FileDownloader):
 
                 if self.params.get('xattr_set_filesize', False) and data_len is not None:
                     try:
-                        import xattr
-                        xattr.setxattr(tmpfilename, 'user.ytdl.filesize', str(data_len))
-                    except(OSError, IOError, ImportError) as err:
+                        write_xattr(tmpfilename, 'user.ytdl.filesize', str(data_len).encode('utf-8'))
+                    except (XAttrUnavailableError, XAttrMetadataError) as err:
                         self.report_error('unable to set filesize xattr: %s' % str(err))
 
             try:
@@ -219,12 +234,6 @@ class HttpFD(FileDownloader):
         if tmpfilename != '-':
             stream.close()
 
-        self._hook_progress({
-            'downloaded_bytes': byte_counter,
-            'total_bytes': data_len,
-            'tmpfilename': tmpfilename,
-            'status': 'error',
-        })
         if data_len is not None and byte_counter != data_len:
             raise ContentTooShortError(byte_counter, int(data_len))
         self.try_rename(tmpfilename, filename)