diff options
Diffstat (limited to 'youtube_dl/utils.py')
| -rw-r--r-- | youtube_dl/utils.py | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py index 69ca88c85..fcbfa0d76 100644 --- a/youtube_dl/utils.py +++ b/youtube_dl/utils.py @@ -42,6 +42,7 @@ from .compat import ( compat_html_entities_html5, compat_http_client, compat_kwargs, + compat_os_name, compat_parse_qs, compat_shlex_quote, compat_socket_create_connection, @@ -775,6 +776,25 @@ class ContentTooShortError(Exception): self.expected = expected +class XAttrMetadataError(Exception): + def __init__(self, code=None, msg='Unknown error'): + super(XAttrMetadataError, self).__init__(msg) + self.code = code + + # Parsing code and msg + if (self.code in (errno.ENOSPC, errno.EDQUOT) or + 'No space left' in self.msg or 'Disk quota excedded' in self.msg): + self.reason = 'NO_SPACE' + elif self.code == errno.E2BIG or 'Argument list too long' in self.msg: + self.reason = 'VALUE_TOO_LONG' + else: + self.reason = 'NOT_SUPPORTED' + + +class XAttrUnavailableError(Exception): + pass + + def _create_http_connection(ydl_handler, http_class, is_https, *args, **kwargs): # Working around python 2 bug (see http://bugs.python.org/issue17849) by limiting # expected HTTP responses to meet HTTP/1.0 or later (see also @@ -3131,3 +3151,82 @@ def decode_png(png_data): current_row.append(color) return width, height, pixels + + +def write_xattr(path, key, value): + # This mess below finds the best xattr tool for the job + try: + # try the pyxattr module... + import xattr + + # Unicode arguments are not supported in python-pyxattr until + # version 0.5.0 + # See https://github.com/rg3/youtube-dl/issues/5498 + pyxattr_required_version = '0.5.0' + if version_tuple(xattr.__version__) < version_tuple(pyxattr_required_version): + # TODO: fallback to CLI tools + raise XAttrUnavailableError( + 'python-pyxattr is detected but is too old. ' + 'youtube-dl requires %s or above while your version is %s. ' + 'Falling back to other xattr implementations' % ( + pyxattr_required_version, xattr.__version__)) + + try: + xattr.set(path, key, value) + except EnvironmentError as e: + raise XAttrMetadataError(e.errno, e.strerror) + + except ImportError: + if compat_os_name == 'nt': + # Write xattrs to NTFS Alternate Data Streams: + # http://en.wikipedia.org/wiki/NTFS#Alternate_data_streams_.28ADS.29 + assert ':' not in key + assert os.path.exists(path) + + ads_fn = path + ':' + key + try: + with open(ads_fn, 'wb') as f: + f.write(value) + except EnvironmentError as e: + raise XAttrMetadataError(e.errno, e.strerror) + else: + user_has_setfattr = check_executable('setfattr', ['--version']) + user_has_xattr = check_executable('xattr', ['-h']) + + if user_has_setfattr or user_has_xattr: + + value = value.decode('utf-8') + if user_has_setfattr: + executable = 'setfattr' + opts = ['-n', key, '-v', value] + elif user_has_xattr: + executable = 'xattr' + opts = ['-w', key, value] + + cmd = ([encodeFilename(executable, True)] + + [encodeArgument(o) for o in opts] + + [encodeFilename(path, True)]) + + try: + p = subprocess.Popen( + cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE) + except EnvironmentError as e: + raise XAttrMetadataError(e.errno, e.strerror) + stdout, stderr = p.communicate() + stderr = stderr.decode('utf-8', 'replace') + if p.returncode != 0: + raise XAttrMetadataError(p.returncode, stderr) + + else: + # On Unix, and can't find pyxattr, setfattr, or xattr. + if sys.platform.startswith('linux'): + raise XAttrUnavailableError( + "Couldn't find a tool to set the xattrs. " + "Install either the python 'pyxattr' or 'xattr' " + "modules, or the GNU 'attr' package " + "(which contains the 'setfattr' tool).") + else: + raise XAttrUnavailableError( + "Couldn't find a tool to set the xattrs. " + "Install either the python 'xattr' module, " + "or the 'xattr' binary.") |