import os
import time
import json
-
-try:
- from Crypto.Cipher import AES
- can_decrypt_frag = True
-except ImportError:
- can_decrypt_frag = False
+from math import ceil
try:
import concurrent.futures
from .common import FileDownloader
from .http import HttpFD
+from ..aes import aes_cbc_decrypt_bytes
from ..compat import (
compat_urllib_error,
compat_struct_pack,
'\r[download] Got server HTTP error: %s. Retrying fragment %d (attempt %d of %s) ...'
% (error_to_compat_str(err), frag_index, count, self.format_retries(retries)))
- def report_skip_fragment(self, frag_index):
- self.to_screen('[download] Skipping fragment %d ...' % frag_index)
+ def report_skip_fragment(self, frag_index, err=None):
+ err = f' {err};' if err else ''
+ self.to_screen(f'[download]{err} Skipping fragment {frag_index:d} ...')
def _prepare_url(self, info_dict, url):
headers = info_dict.get('http_headers')
'url': frag_url,
'http_headers': headers or info_dict.get('http_headers'),
'request_data': request_data,
+ 'ctx_id': ctx.get('ctx_id'),
}
success = ctx['dl'].download(fragment_filename, fragment_info_dict)
if not success:
def _start_frag_download(self, ctx, info_dict):
resume_len = ctx['complete_frags_downloaded_bytes']
total_frags = ctx['total_frags']
+ ctx_id = ctx.get('ctx_id')
# This dict stores the download progress, it's updated by the progress
# hook
state = {
if s['status'] not in ('downloading', 'finished'):
return
+ if ctx_id is not None and s.get('ctx_id') != ctx_id:
+ return
+
+ state['max_progress'] = ctx.get('max_progress')
+ state['progress_idx'] = ctx.get('progress_idx')
+
time_now = time.time()
state['elapsed'] = time_now - start
frag_total_bytes = s.get('total_bytes') or 0
'filename': ctx['filename'],
'status': 'finished',
'elapsed': elapsed,
+ 'ctx_id': ctx.get('ctx_id'),
+ 'max_progress': ctx.get('max_progress'),
+ 'progress_idx': ctx.get('progress_idx'),
}, info_dict)
def _prepare_external_frag_download(self, ctx):
'fragment_index': 0,
})
- def download_and_append_fragments(self, ctx, fragments, info_dict, *, pack_func=None, finish_func=None):
+ def decrypter(self, info_dict):
+ _key_cache = {}
+
+ def _get_key(url):
+ if url not in _key_cache:
+ _key_cache[url] = self.ydl.urlopen(self._prepare_url(info_dict, url)).read()
+ return _key_cache[url]
+
+ def decrypt_fragment(fragment, frag_content):
+ decrypt_info = fragment.get('decrypt_info')
+ if not decrypt_info or decrypt_info['METHOD'] != 'AES-128':
+ return frag_content
+ iv = decrypt_info.get('IV') or compat_struct_pack('>8xq', fragment['media_sequence'])
+ decrypt_info['KEY'] = decrypt_info.get('KEY') or _get_key(info_dict.get('_decryption_key_url') or decrypt_info['URI'])
+ # Don't decrypt the content in tests since the data is explicitly truncated and it's not to a valid block
+ # size (see https://github.com/ytdl-org/youtube-dl/pull/27660). Tests only care that the correct data downloaded,
+ # not what it decrypts to.
+ if self.params.get('test', False):
+ return frag_content
+ decrypted_data = aes_cbc_decrypt_bytes(frag_content, decrypt_info['KEY'], iv)
+ return decrypted_data[:-decrypted_data[-1]]
+
+ return decrypt_fragment
+
+ def download_and_append_fragments_multiple(self, *args, pack_func=None, finish_func=None):
+ '''
+ @params (ctx1, fragments1, info_dict1), (ctx2, fragments2, info_dict2), ...
+ all args must be either tuple or list
+ '''
+ max_progress = len(args)
+ if max_progress == 1:
+ return self.download_and_append_fragments(*args[0], pack_func=pack_func, finish_func=finish_func)
+ max_workers = self.params.get('concurrent_fragment_downloads', max_progress)
+ if max_progress > 1:
+ self._prepare_multiline_status(max_progress)
+
+ def thread_func(idx, ctx, fragments, info_dict, tpe):
+ ctx['max_progress'] = max_progress
+ ctx['progress_idx'] = idx
+ return self.download_and_append_fragments(ctx, fragments, info_dict, pack_func=pack_func, finish_func=finish_func, tpe=tpe)
+
+ class FTPE(concurrent.futures.ThreadPoolExecutor):
+ # has to stop this or it's going to wait on the worker thread itself
+ def __exit__(self, exc_type, exc_val, exc_tb):
+ pass
+
+ spins = []
+ for idx, (ctx, fragments, info_dict) in enumerate(args):
+ tpe = FTPE(ceil(max_workers / max_progress))
+ job = tpe.submit(thread_func, idx, ctx, fragments, info_dict, tpe)
+ spins.append((tpe, job))
+
+ result = True
+ for tpe, job in spins:
+ try:
+ result = result and job.result()
+ finally:
+ tpe.shutdown(wait=True)
+ return result
+
+ def download_and_append_fragments(self, ctx, fragments, info_dict, *, pack_func=None, finish_func=None, tpe=None):
fragment_retries = self.params.get('fragment_retries', 0)
is_fatal = (lambda idx: idx == 0) if self.params.get('skip_unavailable_fragments', True) else (lambda _: True)
if not pack_func:
def download_fragment(fragment, ctx):
frag_index = ctx['fragment_index'] = fragment['frag_index']
- headers = info_dict.get('http_headers', {})
+ headers = info_dict.get('http_headers', {}).copy()
byte_range = fragment.get('byte_range')
if byte_range:
headers['Range'] = 'bytes=%d-%d' % (byte_range['start'], byte_range['end'] - 1)
return False, frag_index
return frag_content, frag_index
- def decrypt_fragment(fragment, frag_content):
- decrypt_info = fragment.get('decrypt_info')
- if not decrypt_info or decrypt_info['METHOD'] != 'AES-128':
- return frag_content
- iv = decrypt_info.get('IV') or compat_struct_pack('>8xq', fragment['media_sequence'])
- decrypt_info['KEY'] = decrypt_info.get('KEY') or self.ydl.urlopen(
- self._prepare_url(info_dict, info_dict.get('_decryption_key_url') or decrypt_info['URI'])).read()
- # Don't decrypt the content in tests since the data is explicitly truncated and it's not to a valid block
- # size (see https://github.com/ytdl-org/youtube-dl/pull/27660). Tests only care that the correct data downloaded,
- # not what it decrypts to.
- if self.params.get('test', False):
- return frag_content
- return AES.new(decrypt_info['KEY'], AES.MODE_CBC, iv).decrypt(frag_content)
-
def append_fragment(frag_content, frag_index, ctx):
if not frag_content:
if not is_fatal(frag_index - 1):
- self.report_skip_fragment(frag_index)
+ self.report_skip_fragment(frag_index, 'fragment not found')
return True
else:
ctx['dest_stream'].close()
self._append_fragment(ctx, pack_func(frag_content, frag_index))
return True
+ decrypt_fragment = self.decrypter(info_dict)
+
max_workers = self.params.get('concurrent_fragment_downloads', 1)
if can_threaded_download and max_workers > 1:
return fragment, frag_content, frag_index, ctx_copy.get('fragment_filename_sanitized')
self.report_warning('The download speed shown is only of one thread. This is a known issue and patches are welcome')
- with concurrent.futures.ThreadPoolExecutor(max_workers) as pool:
+ with tpe or concurrent.futures.ThreadPoolExecutor(max_workers) as pool:
for fragment, frag_content, frag_index, frag_filename in pool.map(_download_fragment, fragments):
ctx['fragment_filename_sanitized'] = frag_filename
ctx['fragment_index'] = frag_index
projects / yt-dlp.git / blobdiff