import atexit import contextlib import hashlib import json import os import platform import re import subprocess import sys from zipimport import zipimporter from .compat import functools # isort: split from .compat import compat_realpath, compat_shlex_quote from .networking import Request from .networking.exceptions import HTTPError, network_exceptions from .utils import ( Popen, cached_method, deprecation_warning, remove_end, remove_start, shell_quote, system_identifier, version_tuple, ) from .version import CHANNEL, UPDATE_HINT, VARIANT, __version__ UPDATE_SOURCES = { 'stable': 'yt-dlp/yt-dlp', 'nightly': 'yt-dlp/yt-dlp-nightly-builds', } REPOSITORY = UPDATE_SOURCES['stable'] _VERSION_RE = re.compile(r'(\d+\.)*\d+') API_BASE_URL = 'https://api.github.com/repos' # Backwards compatibility variables for the current channel API_URL = f'{API_BASE_URL}/{REPOSITORY}/releases' @functools.cache def _get_variant_and_executable_path(): """@returns (variant, executable_path)""" if getattr(sys, 'frozen', False): path = sys.executable if not hasattr(sys, '_MEIPASS'): return 'py2exe', path elif sys._MEIPASS == os.path.dirname(path): return f'{sys.platform}_dir', path elif sys.platform == 'darwin': machine = '_legacy' if version_tuple(platform.mac_ver()[0]) < (10, 15) else '' else: machine = f'_{platform.machine().lower()}' # Ref: https://en.wikipedia.org/wiki/Uname#Examples if machine[1:] in ('x86', 'x86_64', 'amd64', 'i386', 'i686'): machine = '_x86' if platform.architecture()[0][:2] == '32' else '' return f'{remove_end(sys.platform, "32")}{machine}_exe', path path = os.path.dirname(__file__) if isinstance(__loader__, zipimporter): return 'zip', os.path.join(path, '..') elif (os.path.basename(sys.argv[0]) in ('__main__.py', '-m') and os.path.exists(os.path.join(path, '../.git/HEAD'))): return 'source', path return 'unknown', path def detect_variant(): return VARIANT or _get_variant_and_executable_path()[0] @functools.cache def current_git_head(): if detect_variant() != 'source': return with contextlib.suppress(Exception): stdout, _, _ = Popen.run( ['git', 'rev-parse', '--short', 'HEAD'], text=True, cwd=os.path.dirname(os.path.abspath(__file__)), stdout=subprocess.PIPE, stderr=subprocess.PIPE) if re.fullmatch('[0-9a-f]+', stdout.strip()): return stdout.strip() _FILE_SUFFIXES = { 'zip': '', 'py2exe': '_min.exe', 'win_exe': '.exe', 'win_x86_exe': '_x86.exe', 'darwin_exe': '_macos', 'darwin_legacy_exe': '_macos_legacy', 'linux_exe': '_linux', 'linux_aarch64_exe': '_linux_aarch64', 'linux_armv7l_exe': '_linux_armv7l', } _NON_UPDATEABLE_REASONS = { **{variant: None for variant in _FILE_SUFFIXES}, # Updatable **{variant: f'Auto-update is not supported for unpackaged {name} executable; Re-download the latest release' for variant, name in {'win32_dir': 'Windows', 'darwin_dir': 'MacOS', 'linux_dir': 'Linux'}.items()}, 'source': 'You cannot update when running from source code; Use git to pull the latest changes', 'unknown': 'You installed yt-dlp with a package manager or setup.py; Use that to update', 'other': 'You are using an unofficial build of yt-dlp; Build the executable again', } def is_non_updateable(): if UPDATE_HINT: return UPDATE_HINT return _NON_UPDATEABLE_REASONS.get( detect_variant(), _NON_UPDATEABLE_REASONS['unknown' if VARIANT else 'other']) def _sha256_file(path): h = hashlib.sha256() mv = memoryview(bytearray(128 * 1024)) with open(os.path.realpath(path), 'rb', buffering=0) as f: for n in iter(lambda: f.readinto(mv), 0): h.update(mv[:n]) return h.hexdigest() class Updater: _exact = True def __init__(self, ydl, target=None): self.ydl = ydl self.target_channel, sep, self.target_tag = (target or CHANNEL).rpartition('@') # stable => stable@latest if not sep and ('/' in self.target_tag or self.target_tag in UPDATE_SOURCES): self.target_channel = self.target_tag self.target_tag = None elif not self.target_channel: self.target_channel = CHANNEL.partition('@')[0] if not self.target_tag: self.target_tag = 'latest' self._exact = False elif self.target_tag != 'latest': self.target_tag = f'tags/{self.target_tag}' if '/' in self.target_channel: self._target_repo = self.target_channel if self.target_channel not in (CHANNEL, *UPDATE_SOURCES.values()): self.ydl.report_warning( f'You are switching to an {self.ydl._format_err("unofficial", "red")} executable ' f'from {self.ydl._format_err(self._target_repo, self.ydl.Styles.EMPHASIS)}. ' f'Run {self.ydl._format_err("at your own risk", "light red")}') self._block_restart('Automatically restarting into custom builds is disabled for security reasons') else: self._target_repo = UPDATE_SOURCES.get(self.target_channel) if not self._target_repo: self._report_error( f'Invalid update channel {self.target_channel!r} requested. ' f'Valid channels are {", ".join(UPDATE_SOURCES)}', True) def _version_compare(self, a, b, channel=CHANNEL): if self._exact and channel != self.target_channel: return False if _VERSION_RE.fullmatch(f'{a}.{b}'): a, b = version_tuple(a), version_tuple(b) return a == b if self._exact else a >= b return a == b @functools.cached_property def _tag(self): if self._version_compare(self.current_version, self.latest_version): return self.target_tag identifier = f'{detect_variant()} {self.target_channel} {system_identifier()}' for line in self._download('_update_spec', 'latest').decode().splitlines(): if not line.startswith('lock '): continue _, tag, pattern = line.split(' ', 2) if re.match(pattern, identifier): if not self._exact: return f'tags/{tag}' elif self.target_tag == 'latest' or not self._version_compare( tag, self.target_tag[5:], channel=self.target_channel): self._report_error( f'yt-dlp cannot be updated above {tag} since you are on an older Python version', True) return f'tags/{self.current_version}' return self.target_tag @cached_method def _get_version_info(self, tag): url = f'{API_BASE_URL}/{self._target_repo}/releases/{tag}' self.ydl.write_debug(f'Fetching release info: {url}') return json.loads(self.ydl.urlopen(Request(url, headers={ 'Accept': 'application/vnd.github+json', 'User-Agent': 'yt-dlp', 'X-GitHub-Api-Version': '2022-11-28', })).read().decode()) @property def current_version(self): """Current version""" return __version__ @staticmethod def _label(channel, tag): """Label for a given channel and tag""" return f'{channel}@{remove_start(tag, "tags/")}' def _get_actual_tag(self, tag): if tag.startswith('tags/'): return tag[5:] return self._get_version_info(tag)['tag_name'] @property def new_version(self): """Version of the latest release we can update to""" return self._get_actual_tag(self._tag) @property def latest_version(self): """Version of the target release""" return self._get_actual_tag(self.target_tag) @property def has_update(self): """Whether there is an update available""" return not self._version_compare(self.current_version, self.new_version) @functools.cached_property def filename(self): """Filename of the executable""" return compat_realpath(_get_variant_and_executable_path()[1]) def _download(self, name, tag): slug = 'latest/download' if tag == 'latest' else f'download/{tag[5:]}' url = f'https://github.com/{self._target_repo}/releases/{slug}/{name}' self.ydl.write_debug(f'Downloading {name} from {url}') return self.ydl.urlopen(url).read() @functools.cached_property def release_name(self): """The release filename""" return f'yt-dlp{_FILE_SUFFIXES[detect_variant()]}' @functools.cached_property def release_hash(self): """Hash of the latest release""" hash_data = dict(ln.split()[::-1] for ln in self._download('SHA2-256SUMS', self._tag).decode().splitlines()) return hash_data[self.release_name] def _report_error(self, msg, expected=False): self.ydl.report_error(msg, tb=False if expected else None) self.ydl._download_retcode = 100 def _report_permission_error(self, file): self._report_error(f'Unable to write to {file}; Try running as administrator', True) def _report_network_error(self, action, delim=';'): self._report_error( f'Unable to {action}{delim} visit ' f'https://github.com/{self._target_repo}/releases/{self.target_tag.replace("tags/", "tag/")}', True) def check_update(self): """Report whether there is an update available""" if not self._target_repo: return False try: self.ydl.to_screen(( f'Available version: {self._label(self.target_channel, self.latest_version)}, ' if self.target_tag == 'latest' else '' ) + f'Current version: {self._label(CHANNEL, self.current_version)}') except network_exceptions as e: return self._report_network_error(f'obtain version info ({e})', delim='; Please try again later or') if not is_non_updateable(): self.ydl.to_screen(f'Current Build Hash: {_sha256_file(self.filename)}') if self.has_update: return True if self.target_tag == self._tag: self.ydl.to_screen(f'yt-dlp is up to date ({self._label(CHANNEL, self.current_version)})') elif not self._exact: self.ydl.report_warning('yt-dlp cannot be updated any further since you are on an older Python version') return False def update(self): """Update yt-dlp executable to the latest version""" if not self.check_update(): return err = is_non_updateable() if err: return self._report_error(err, True) self.ydl.to_screen(f'Updating to {self._label(self.target_channel, self.new_version)} ...') if (_VERSION_RE.fullmatch(self.target_tag[5:]) and version_tuple(self.target_tag[5:]) < (2023, 3, 2)): self.ydl.report_warning('You are downgrading to a version without --update-to') self._block_restart('Cannot automatically restart to a version without --update-to') directory = os.path.dirname(self.filename) if not os.access(self.filename, os.W_OK): return self._report_permission_error(self.filename) elif not os.access(directory, os.W_OK): return self._report_permission_error(directory) new_filename, old_filename = f'{self.filename}.new', f'{self.filename}.old' if detect_variant() == 'zip': # Can be replaced in-place new_filename, old_filename = self.filename, None try: if os.path.exists(old_filename or ''): os.remove(old_filename) except OSError: return self._report_error('Unable to remove the old version') try: newcontent = self._download(self.release_name, self._tag) except network_exceptions as e: if isinstance(e, HTTPError) and e.status == 404: return self._report_error( f'The requested tag {self._label(self.target_channel, self.target_tag)} does not exist', True) return self._report_network_error(f'fetch updates: {e}') try: expected_hash = self.release_hash except Exception: self.ydl.report_warning('no hash information found for the release') else: if hashlib.sha256(newcontent).hexdigest() != expected_hash: return self._report_network_error('verify the new executable') try: with open(new_filename, 'wb') as outf: outf.write(newcontent) except OSError: return self._report_permission_error(new_filename) if old_filename: mask = os.stat(self.filename).st_mode try: os.rename(self.filename, old_filename) except OSError: return self._report_error('Unable to move current version') try: os.rename(new_filename, self.filename) except OSError: self._report_error('Unable to overwrite current version') return os.rename(old_filename, self.filename) variant = detect_variant() if variant.startswith('win') or variant == 'py2exe': atexit.register(Popen, f'ping 127.0.0.1 -n 5 -w 1000 & del /F "{old_filename}"', shell=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) elif old_filename: try: os.remove(old_filename) except OSError: self._report_error('Unable to remove the old version') try: os.chmod(self.filename, mask) except OSError: return self._report_error( f'Unable to set permissions. Run: sudo chmod a+rx {compat_shlex_quote(self.filename)}') self.ydl.to_screen(f'Updated yt-dlp to {self._label(self.target_channel, self.new_version)}') return True @functools.cached_property def cmd(self): """The command-line to run the executable, if known""" # There is no sys.orig_argv in py < 3.10. Also, it can be [] when frozen if getattr(sys, 'orig_argv', None): return sys.orig_argv elif getattr(sys, 'frozen', False): return sys.argv def restart(self): """Restart the executable""" assert self.cmd, 'Must be frozen or Py >= 3.10' self.ydl.write_debug(f'Restarting: {shell_quote(self.cmd)}') _, _, returncode = Popen.run(self.cmd) return returncode def _block_restart(self, msg): def wrapper(): self._report_error(f'{msg}. Restart yt-dlp to use the updated version', expected=True) return self.ydl._download_retcode self.restart = wrapper def run_update(ydl): """Update the program file with the latest version from the repository @returns Whether there was a successful update (No update = False) """ return Updater(ydl).update() # Deprecated def update_self(to_screen, verbose, opener): import traceback deprecation_warning(f'"{__name__}.update_self" is deprecated and may be removed ' f'in a future version. Use "{__name__}.run_update(ydl)" instead') printfn = to_screen class FakeYDL(): to_screen = printfn def report_warning(self, msg, *args, **kwargs): return printfn(f'WARNING: {msg}', *args, **kwargs) def report_error(self, msg, tb=None): printfn(f'ERROR: {msg}') if not verbose: return if tb is None: # Copied from YoutubeDL.trouble if sys.exc_info()[0]: tb = '' if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]: tb += ''.join(traceback.format_exception(*sys.exc_info()[1].exc_info)) tb += traceback.format_exc() else: tb_data = traceback.format_list(traceback.extract_stack()) tb = ''.join(tb_data) if tb: printfn(tb) def write_debug(self, msg, *args, **kwargs): printfn(f'[debug] {msg}', *args, **kwargs) def urlopen(self, url): return opener.open(url) return run_update(FakeYDL()) __all__ = ['Updater']