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[extractor] Add dev option `--load-pages`

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pull/3939/head
pukkandan 2 years ago
parent 617f658b7e
commit f95b9dee45
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GPG Key ID: 7EEE9E1E817D0A39
4 changed files with 54 additions and 36 deletions
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1
README.md
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@ -2022,6 +2022,7 @@ While these options still work, their use is not recommended since there are oth
These options are not intended to be used by the end-user
--test Download only part of video for testing extractors
--load-pages Load pages dumped by --write-pages
--youtube-print-sig-code For testing youtube signatures
--allow-unplayable-formats List unplayable formats also
--no-allow-unplayable-formats Default

1
yt_dlp/__init__.py
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@ -758,6 +758,7 @@ def parse_options(argv=None):
'verbose': opts.verbose,
'dump_intermediate_pages': opts.dump_intermediate_pages,
'write_pages': opts.write_pages,
'load_pages': opts.load_pages,
'test': opts.test,
'keepvideo': opts.keepvideo,
'min_filesize': opts.min_filesize,

80
yt_dlp/extractor/common.py
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@ -75,7 +75,6 @@ from ..utils import (
unified_strdate,
unified_timestamp,
update_Request,
update_url_query,
url_basename,
url_or_none,
urljoin,
@ -724,6 +723,11 @@ class InfoExtractor:
else:
return err.code in variadic(expected_status)
def _create_request(self, url_or_request, data=None, headers={}, query={}):
if not isinstance(url_or_request, compat_urllib_request.Request):
url_or_request = sanitized_Request(url_or_request)
return update_Request(url_or_request, data=data, headers=headers, query=query)
def _request_webpage(self, url_or_request, video_id, note=None, errnote=None, fatal=True, data=None, headers={}, query={}, expected_status=None):
"""
Return the response handle.
@ -755,16 +759,8 @@ class InfoExtractor:
if 'X-Forwarded-For' not in headers:
headers['X-Forwarded-For'] = self._x_forwarded_for_ip
if isinstance(url_or_request, compat_urllib_request.Request):
url_or_request = update_Request(
url_or_request, data=data, headers=headers, query=query)
else:
if query:
url_or_request = update_url_query(url_or_request, query)
if data is not None or headers:
url_or_request = sanitized_Request(url_or_request, data, headers)
try:
return self._downloader.urlopen(url_or_request)
return self._downloader.urlopen(self._create_request(url_or_request, data, headers, query))
except network_exceptions as err:
if isinstance(err, compat_urllib_error.HTTPError):
if self.__can_accept_status_code(err, expected_status):
@ -876,40 +872,44 @@ class InfoExtractor:
'Visit http://blocklist.rkn.gov.ru/ for a block reason.',
expected=True)
def _webpage_read_content(self, urlh, url_or_request, video_id, note=None, errnote=None, fatal=True, prefix=None, encoding=None):
content_type = urlh.headers.get('Content-Type', '')
webpage_bytes = urlh.read()
if prefix is not None:
webpage_bytes = prefix + webpage_bytes
if not encoding:
encoding = self._guess_encoding_from_content(content_type, webpage_bytes)
if self.get_param('dump_intermediate_pages', False):
self.to_screen('Dumping request to ' + urlh.geturl())
dump = base64.b64encode(webpage_bytes).decode('ascii')
self._downloader.to_screen(dump)
if self.get_param('write_pages', False):
basen = f'{video_id}_{urlh.geturl()}'
def _request_dump_filename(self, url, video_id):
basen = f'{video_id}_{url}'
trim_length = self.get_param('trim_file_name') or 240
if len(basen) > trim_length:
h = '___' + hashlib.md5(basen.encode('utf-8')).hexdigest()
basen = basen[:trim_length - len(h)] + h
raw_filename = basen + '.dump'
filename = sanitize_filename(raw_filename, restricted=True)
self.to_screen('Saving request to ' + filename)
filename = sanitize_filename(f'{basen}.dump', restricted=True)
# Working around MAX_PATH limitation on Windows (see
# http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx)
if compat_os_name == 'nt':
absfilepath = os.path.abspath(filename)
if len(absfilepath) > 259:
filename = '\\\\?\\' + absfilepath
with open(filename, 'wb') as outf:
outf.write(webpage_bytes)
filename = fR'\\?\{absfilepath}'
return filename
def __decode_webpage(self, webpage_bytes, encoding, headers):
if not encoding:
encoding = self._guess_encoding_from_content(headers.get('Content-Type', ''), webpage_bytes)
try:
content = webpage_bytes.decode(encoding, 'replace')
return webpage_bytes.decode(encoding, 'replace')
except LookupError:
content = webpage_bytes.decode('utf-8', 'replace')
return webpage_bytes.decode('utf-8', 'replace')
def _webpage_read_content(self, urlh, url_or_request, video_id, note=None, errnote=None, fatal=True, prefix=None, encoding=None):
webpage_bytes = urlh.read()
if prefix is not None:
webpage_bytes = prefix + webpage_bytes
if self.get_param('dump_intermediate_pages', False):
self.to_screen('Dumping request to ' + urlh.geturl())
dump = base64.b64encode(webpage_bytes).decode('ascii')
self._downloader.to_screen(dump)
if self.get_param('write_pages'):
filename = self._request_dump_filename(video_id, urlh.geturl())
self.to_screen(f'Saving request to {filename}')
with open(filename, 'wb') as outf:
outf.write(webpage_bytes)
content = self.__decode_webpage(webpage_bytes, encoding, urlh.headers)
self.__check_blocked(content)
return content
@ -967,9 +967,21 @@ class InfoExtractor:
content, urlh = res
return parse(self, content, video_id, transform_source, fatal), urlh
def download_content(
self, url_or_request, video_id, note=note, errnote=errnote, transform_source=None, *args, **kwargs):
args = [url_or_request, video_id, note, errnote, transform_source, *args]
def download_content(self, url_or_request, video_id, note=note, errnote=errnote, transform_source=None,
fatal=True, encoding=None, data=None, headers={}, query={}, *args, **kwargs):
if self.get_param('load_pages'):
url_or_request = self._create_request(url_or_request, data, headers, query)
filename = self._request_dump_filename(url_or_request.full_url, video_id)
self.to_screen(f'Loading request from {filename}')
try:
with open(filename, 'rb') as dumpf:
webpage_bytes = dumpf.read()
except OSError as e:
self.report_warning(f'Unable to load request from disk: {e}')
else:
content = self.__decode_webpage(webpage_bytes, encoding, url_or_request.headers)
return parse(self, content, video_id, transform_source, fatal)
args = [url_or_request, video_id, note, errnote, transform_source, fatal, encoding, data, headers, query, *args]
if parser is None:
args.pop(4) # transform_source
# The method is fetched by name so subclasses can override _download_..._handle

4
yt_dlp/options.py
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@ -1154,6 +1154,10 @@ def create_parser():
'--write-pages',
action='store_true', dest='write_pages', default=False,
help='Write downloaded intermediary pages to files in the current directory to debug problems')
verbosity.add_option(
'--load-pages',
action='store_true', dest='load_pages', default=False,
help=optparse.SUPPRESS_HELP)
verbosity.add_option(
'--youtube-print-sig-code',
action='store_true', dest='youtube_print_sig_code', default=False,

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