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1 | import atexit | |
2 | import contextlib | |
3 | import hashlib | |
4 | import json | |
5 | import os | |
6 | import platform | |
7 | import re | |
8 | import subprocess | |
9 | import sys | |
10 | import urllib.error | |
11 | from zipimport import zipimporter | |
12 | ||
13 | from .compat import functools # isort: split | |
14 | from .compat import compat_realpath, compat_shlex_quote | |
15 | from .utils import ( | |
16 | Popen, | |
17 | cached_method, | |
18 | deprecation_warning, | |
19 | remove_end, | |
20 | remove_start, | |
21 | sanitized_Request, | |
22 | shell_quote, | |
23 | system_identifier, | |
24 | version_tuple, | |
25 | ) | |
26 | from .version import CHANNEL, UPDATE_HINT, VARIANT, __version__ | |
27 | ||
28 | UPDATE_SOURCES = { | |
29 | 'stable': 'yt-dlp/yt-dlp', | |
30 | 'nightly': 'yt-dlp/yt-dlp-nightly-builds', | |
31 | } | |
32 | ||
33 | _VERSION_RE = re.compile(r'(\d+\.)*\d+') | |
34 | ||
35 | API_BASE_URL = 'https://api.github.com/repos' | |
36 | ||
37 | # Backwards compatibility variables for the current channel | |
38 | REPOSITORY = UPDATE_SOURCES[CHANNEL] | |
39 | API_URL = f'{API_BASE_URL}/{REPOSITORY}/releases' | |
40 | ||
41 | ||
42 | @functools.cache | |
43 | def _get_variant_and_executable_path(): | |
44 | """@returns (variant, executable_path)""" | |
45 | if getattr(sys, 'frozen', False): | |
46 | path = sys.executable | |
47 | if not hasattr(sys, '_MEIPASS'): | |
48 | return 'py2exe', path | |
49 | elif sys._MEIPASS == os.path.dirname(path): | |
50 | return f'{sys.platform}_dir', path | |
51 | elif sys.platform == 'darwin': | |
52 | machine = '_legacy' if version_tuple(platform.mac_ver()[0]) < (10, 15) else '' | |
53 | else: | |
54 | machine = f'_{platform.machine().lower()}' | |
55 | # Ref: https://en.wikipedia.org/wiki/Uname#Examples | |
56 | if machine[1:] in ('x86', 'x86_64', 'amd64', 'i386', 'i686'): | |
57 | machine = '_x86' if platform.architecture()[0][:2] == '32' else '' | |
58 | return f'{remove_end(sys.platform, "32")}{machine}_exe', path | |
59 | ||
60 | path = os.path.dirname(__file__) | |
61 | if isinstance(__loader__, zipimporter): | |
62 | return 'zip', os.path.join(path, '..') | |
63 | elif (os.path.basename(sys.argv[0]) in ('__main__.py', '-m') | |
64 | and os.path.exists(os.path.join(path, '../.git/HEAD'))): | |
65 | return 'source', path | |
66 | return 'unknown', path | |
67 | ||
68 | ||
69 | def detect_variant(): | |
70 | return VARIANT or _get_variant_and_executable_path()[0] | |
71 | ||
72 | ||
73 | @functools.cache | |
74 | def current_git_head(): | |
75 | if detect_variant() != 'source': | |
76 | return | |
77 | with contextlib.suppress(Exception): | |
78 | stdout, _, _ = Popen.run( | |
79 | ['git', 'rev-parse', '--short', 'HEAD'], | |
80 | text=True, cwd=os.path.dirname(os.path.abspath(__file__)), | |
81 | stdout=subprocess.PIPE, stderr=subprocess.PIPE) | |
82 | if re.fullmatch('[0-9a-f]+', stdout.strip()): | |
83 | return stdout.strip() | |
84 | ||
85 | ||
86 | _FILE_SUFFIXES = { | |
87 | 'zip': '', | |
88 | 'py2exe': '_min.exe', | |
89 | 'win_exe': '.exe', | |
90 | 'win_x86_exe': '_x86.exe', | |
91 | 'darwin_exe': '_macos', | |
92 | 'darwin_legacy_exe': '_macos_legacy', | |
93 | 'linux_exe': '_linux', | |
94 | 'linux_aarch64_exe': '_linux_aarch64', | |
95 | 'linux_armv7l_exe': '_linux_armv7l', | |
96 | } | |
97 | ||
98 | _NON_UPDATEABLE_REASONS = { | |
99 | **{variant: None for variant in _FILE_SUFFIXES}, # Updatable | |
100 | **{variant: f'Auto-update is not supported for unpackaged {name} executable; Re-download the latest release' | |
101 | for variant, name in {'win32_dir': 'Windows', 'darwin_dir': 'MacOS', 'linux_dir': 'Linux'}.items()}, | |
102 | 'source': 'You cannot update when running from source code; Use git to pull the latest changes', | |
103 | 'unknown': 'You installed yt-dlp with a package manager or setup.py; Use that to update', | |
104 | 'other': 'You are using an unofficial build of yt-dlp; Build the executable again', | |
105 | } | |
106 | ||
107 | ||
108 | def is_non_updateable(): | |
109 | if UPDATE_HINT: | |
110 | return UPDATE_HINT | |
111 | return _NON_UPDATEABLE_REASONS.get( | |
112 | detect_variant(), _NON_UPDATEABLE_REASONS['unknown' if VARIANT else 'other']) | |
113 | ||
114 | ||
115 | def _sha256_file(path): | |
116 | h = hashlib.sha256() | |
117 | mv = memoryview(bytearray(128 * 1024)) | |
118 | with open(os.path.realpath(path), 'rb', buffering=0) as f: | |
119 | for n in iter(lambda: f.readinto(mv), 0): | |
120 | h.update(mv[:n]) | |
121 | return h.hexdigest() | |
122 | ||
123 | ||
124 | class Updater: | |
125 | _exact = True | |
126 | ||
127 | def __init__(self, ydl, target=None): | |
128 | self.ydl = ydl | |
129 | ||
130 | self.target_channel, sep, self.target_tag = (target or CHANNEL).rpartition('@') | |
131 | if not sep and self.target_tag in UPDATE_SOURCES: # stable => stable@latest | |
132 | self.target_channel, self.target_tag = self.target_tag, None | |
133 | elif not self.target_channel: | |
134 | self.target_channel = CHANNEL | |
135 | ||
136 | if not self.target_tag: | |
137 | self.target_tag, self._exact = 'latest', False | |
138 | elif self.target_tag != 'latest': | |
139 | self.target_tag = f'tags/{self.target_tag}' | |
140 | ||
141 | @property | |
142 | def _target_repo(self): | |
143 | try: | |
144 | return UPDATE_SOURCES[self.target_channel] | |
145 | except KeyError: | |
146 | return self._report_error( | |
147 | f'Invalid update channel {self.target_channel!r} requested. ' | |
148 | f'Valid channels are {", ".join(UPDATE_SOURCES)}', True) | |
149 | ||
150 | def _version_compare(self, a, b, channel=CHANNEL): | |
151 | if channel != self.target_channel: | |
152 | return False | |
153 | ||
154 | if _VERSION_RE.fullmatch(f'{a}.{b}'): | |
155 | a, b = version_tuple(a), version_tuple(b) | |
156 | return a == b if self._exact else a >= b | |
157 | return a == b | |
158 | ||
159 | @functools.cached_property | |
160 | def _tag(self): | |
161 | if self._version_compare(self.current_version, self.latest_version): | |
162 | return self.target_tag | |
163 | ||
164 | identifier = f'{detect_variant()} {self.target_channel} {system_identifier()}' | |
165 | for line in self._download('_update_spec', 'latest').decode().splitlines(): | |
166 | if not line.startswith('lock '): | |
167 | continue | |
168 | _, tag, pattern = line.split(' ', 2) | |
169 | if re.match(pattern, identifier): | |
170 | if not self._exact: | |
171 | return f'tags/{tag}' | |
172 | elif self.target_tag == 'latest' or not self._version_compare( | |
173 | tag, self.target_tag[5:], channel=self.target_channel): | |
174 | self._report_error( | |
175 | f'yt-dlp cannot be updated above {tag} since you are on an older Python version', True) | |
176 | return f'tags/{self.current_version}' | |
177 | return self.target_tag | |
178 | ||
179 | @cached_method | |
180 | def _get_version_info(self, tag): | |
181 | url = f'{API_BASE_URL}/{self._target_repo}/releases/{tag}' | |
182 | self.ydl.write_debug(f'Fetching release info: {url}') | |
183 | return json.loads(self.ydl.urlopen(sanitized_Request(url, headers={ | |
184 | 'Accept': 'application/vnd.github+json', | |
185 | 'User-Agent': 'yt-dlp', | |
186 | 'X-GitHub-Api-Version': '2022-11-28', | |
187 | })).read().decode()) | |
188 | ||
189 | @property | |
190 | def current_version(self): | |
191 | """Current version""" | |
192 | return __version__ | |
193 | ||
194 | @staticmethod | |
195 | def _label(channel, tag): | |
196 | """Label for a given channel and tag""" | |
197 | return f'{channel}@{remove_start(tag, "tags/")}' | |
198 | ||
199 | def _get_actual_tag(self, tag): | |
200 | if tag.startswith('tags/'): | |
201 | return tag[5:] | |
202 | return self._get_version_info(tag)['tag_name'] | |
203 | ||
204 | @property | |
205 | def new_version(self): | |
206 | """Version of the latest release we can update to""" | |
207 | return self._get_actual_tag(self._tag) | |
208 | ||
209 | @property | |
210 | def latest_version(self): | |
211 | """Version of the target release""" | |
212 | return self._get_actual_tag(self.target_tag) | |
213 | ||
214 | @property | |
215 | def has_update(self): | |
216 | """Whether there is an update available""" | |
217 | return not self._version_compare(self.current_version, self.new_version) | |
218 | ||
219 | @functools.cached_property | |
220 | def filename(self): | |
221 | """Filename of the executable""" | |
222 | return compat_realpath(_get_variant_and_executable_path()[1]) | |
223 | ||
224 | def _download(self, name, tag): | |
225 | slug = 'latest/download' if tag == 'latest' else f'download/{tag[5:]}' | |
226 | url = f'https://github.com/{self._target_repo}/releases/{slug}/{name}' | |
227 | self.ydl.write_debug(f'Downloading {name} from {url}') | |
228 | return self.ydl.urlopen(url).read() | |
229 | ||
230 | @functools.cached_property | |
231 | def release_name(self): | |
232 | """The release filename""" | |
233 | return f'yt-dlp{_FILE_SUFFIXES[detect_variant()]}' | |
234 | ||
235 | @functools.cached_property | |
236 | def release_hash(self): | |
237 | """Hash of the latest release""" | |
238 | hash_data = dict(ln.split()[::-1] for ln in self._download('SHA2-256SUMS', self._tag).decode().splitlines()) | |
239 | return hash_data[self.release_name] | |
240 | ||
241 | def _report_error(self, msg, expected=False): | |
242 | self.ydl.report_error(msg, tb=False if expected else None) | |
243 | self.ydl._download_retcode = 100 | |
244 | ||
245 | def _report_permission_error(self, file): | |
246 | self._report_error(f'Unable to write to {file}; Try running as administrator', True) | |
247 | ||
248 | def _report_network_error(self, action, delim=';'): | |
249 | self._report_error( | |
250 | f'Unable to {action}{delim} visit ' | |
251 | f'https://github.com/{self._target_repo}/releases/{self.target_tag.replace("tags/", "tag/")}', True) | |
252 | ||
253 | def check_update(self): | |
254 | """Report whether there is an update available""" | |
255 | if not self._target_repo: | |
256 | return False | |
257 | try: | |
258 | self.ydl.to_screen(( | |
259 | f'Available version: {self._label(self.target_channel, self.latest_version)}, ' if self.target_tag == 'latest' else '' | |
260 | ) + f'Current version: {self._label(CHANNEL, self.current_version)}') | |
261 | except Exception: | |
262 | return self._report_network_error('obtain version info', delim='; Please try again later or') | |
263 | ||
264 | if not is_non_updateable(): | |
265 | self.ydl.to_screen(f'Current Build Hash: {_sha256_file(self.filename)}') | |
266 | ||
267 | if self.has_update: | |
268 | return True | |
269 | ||
270 | if self.target_tag == self._tag: | |
271 | self.ydl.to_screen(f'yt-dlp is up to date ({self._label(CHANNEL, self.current_version)})') | |
272 | elif not self._exact: | |
273 | self.ydl.report_warning('yt-dlp cannot be updated any further since you are on an older Python version') | |
274 | return False | |
275 | ||
276 | def update(self): | |
277 | """Update yt-dlp executable to the latest version""" | |
278 | if not self.check_update(): | |
279 | return | |
280 | err = is_non_updateable() | |
281 | if err: | |
282 | return self._report_error(err, True) | |
283 | self.ydl.to_screen(f'Updating to {self._label(self.target_channel, self.new_version)} ...') | |
284 | if (_VERSION_RE.fullmatch(self.target_tag[5:]) | |
285 | and version_tuple(self.target_tag[5:]) < (2023, 3, 2)): | |
286 | self.ydl.report_warning('You are downgrading to a version without --update-to') | |
287 | ||
288 | directory = os.path.dirname(self.filename) | |
289 | if not os.access(self.filename, os.W_OK): | |
290 | return self._report_permission_error(self.filename) | |
291 | elif not os.access(directory, os.W_OK): | |
292 | return self._report_permission_error(directory) | |
293 | ||
294 | new_filename, old_filename = f'{self.filename}.new', f'{self.filename}.old' | |
295 | if detect_variant() == 'zip': # Can be replaced in-place | |
296 | new_filename, old_filename = self.filename, None | |
297 | ||
298 | try: | |
299 | if os.path.exists(old_filename or ''): | |
300 | os.remove(old_filename) | |
301 | except OSError: | |
302 | return self._report_error('Unable to remove the old version') | |
303 | ||
304 | try: | |
305 | newcontent = self._download(self.release_name, self._tag) | |
306 | except Exception as e: | |
307 | if isinstance(e, urllib.error.HTTPError) and e.code == 404: | |
308 | return self._report_error( | |
309 | f'The requested tag {self._label(self.target_channel, self.target_tag)} does not exist', True) | |
310 | return self._report_network_error(f'fetch updates: {e}') | |
311 | ||
312 | try: | |
313 | expected_hash = self.release_hash | |
314 | except Exception: | |
315 | self.ydl.report_warning('no hash information found for the release') | |
316 | else: | |
317 | if hashlib.sha256(newcontent).hexdigest() != expected_hash: | |
318 | return self._report_network_error('verify the new executable') | |
319 | ||
320 | try: | |
321 | with open(new_filename, 'wb') as outf: | |
322 | outf.write(newcontent) | |
323 | except OSError: | |
324 | return self._report_permission_error(new_filename) | |
325 | ||
326 | if old_filename: | |
327 | mask = os.stat(self.filename).st_mode | |
328 | try: | |
329 | os.rename(self.filename, old_filename) | |
330 | except OSError: | |
331 | return self._report_error('Unable to move current version') | |
332 | ||
333 | try: | |
334 | os.rename(new_filename, self.filename) | |
335 | except OSError: | |
336 | self._report_error('Unable to overwrite current version') | |
337 | return os.rename(old_filename, self.filename) | |
338 | ||
339 | variant = detect_variant() | |
340 | if variant.startswith('win') or variant == 'py2exe': | |
341 | atexit.register(Popen, f'ping 127.0.0.1 -n 5 -w 1000 & del /F "{old_filename}"', | |
342 | shell=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) | |
343 | elif old_filename: | |
344 | try: | |
345 | os.remove(old_filename) | |
346 | except OSError: | |
347 | self._report_error('Unable to remove the old version') | |
348 | ||
349 | try: | |
350 | os.chmod(self.filename, mask) | |
351 | except OSError: | |
352 | return self._report_error( | |
353 | f'Unable to set permissions. Run: sudo chmod a+rx {compat_shlex_quote(self.filename)}') | |
354 | ||
355 | self.ydl.to_screen(f'Updated yt-dlp to {self._label(self.target_channel, self.new_version)}') | |
356 | return True | |
357 | ||
358 | @functools.cached_property | |
359 | def cmd(self): | |
360 | """The command-line to run the executable, if known""" | |
361 | # There is no sys.orig_argv in py < 3.10. Also, it can be [] when frozen | |
362 | if getattr(sys, 'orig_argv', None): | |
363 | return sys.orig_argv | |
364 | elif getattr(sys, 'frozen', False): | |
365 | return sys.argv | |
366 | ||
367 | def restart(self): | |
368 | """Restart the executable""" | |
369 | assert self.cmd, 'Must be frozen or Py >= 3.10' | |
370 | self.ydl.write_debug(f'Restarting: {shell_quote(self.cmd)}') | |
371 | _, _, returncode = Popen.run(self.cmd) | |
372 | return returncode | |
373 | ||
374 | ||
375 | def run_update(ydl): | |
376 | """Update the program file with the latest version from the repository | |
377 | @returns Whether there was a successful update (No update = False) | |
378 | """ | |
379 | return Updater(ydl).update() | |
380 | ||
381 | ||
382 | # Deprecated | |
383 | def update_self(to_screen, verbose, opener): | |
384 | import traceback | |
385 | ||
386 | deprecation_warning(f'"{__name__}.update_self" is deprecated and may be removed ' | |
387 | f'in a future version. Use "{__name__}.run_update(ydl)" instead') | |
388 | ||
389 | printfn = to_screen | |
390 | ||
391 | class FakeYDL(): | |
392 | to_screen = printfn | |
393 | ||
394 | def report_warning(self, msg, *args, **kwargs): | |
395 | return printfn(f'WARNING: {msg}', *args, **kwargs) | |
396 | ||
397 | def report_error(self, msg, tb=None): | |
398 | printfn(f'ERROR: {msg}') | |
399 | if not verbose: | |
400 | return | |
401 | if tb is None: | |
402 | # Copied from YoutubeDL.trouble | |
403 | if sys.exc_info()[0]: | |
404 | tb = '' | |
405 | if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]: | |
406 | tb += ''.join(traceback.format_exception(*sys.exc_info()[1].exc_info)) | |
407 | tb += traceback.format_exc() | |
408 | else: | |
409 | tb_data = traceback.format_list(traceback.extract_stack()) | |
410 | tb = ''.join(tb_data) | |
411 | if tb: | |
412 | printfn(tb) | |
413 | ||
414 | def write_debug(self, msg, *args, **kwargs): | |
415 | printfn(f'[debug] {msg}', *args, **kwargs) | |
416 | ||
417 | def urlopen(self, url): | |
418 | return opener.open(url) | |
419 | ||
420 | return run_update(FakeYDL()) | |
421 | ||
422 | ||
423 | __all__ = ['Updater'] |