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https://github.com/yt-dlp/yt-dlp.git
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de015e9307
The shell escape function is now using `""` instead of `\"`. `utils.Popen` has been patched to properly quote commands. Prior to this fix using `--exec` together with `%q` when on Windows could cause remote code to execute. See https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-42h4-v29r-42qg for reference. Authored by: Grub4K
41 lines
1.5 KiB
Python
41 lines
1.5 KiB
Python
from .common import PostProcessor
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from ..compat import compat_shlex_quote
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from ..utils import Popen, PostProcessingError, variadic
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class ExecPP(PostProcessor):
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def __init__(self, downloader, exec_cmd):
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PostProcessor.__init__(self, downloader)
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self.exec_cmd = variadic(exec_cmd)
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def parse_cmd(self, cmd, info):
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tmpl, tmpl_dict = self._downloader.prepare_outtmpl(cmd, info)
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if tmpl_dict: # if there are no replacements, tmpl_dict = {}
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return self._downloader.escape_outtmpl(tmpl) % tmpl_dict
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filepath = info.get('filepath', info.get('_filename'))
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# If video, and no replacements are found, replace {} for backard compatibility
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if filepath:
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if '{}' not in cmd:
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cmd += ' {}'
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cmd = cmd.replace('{}', compat_shlex_quote(filepath))
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return cmd
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def run(self, info):
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for tmpl in self.exec_cmd:
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cmd = self.parse_cmd(tmpl, info)
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self.to_screen(f'Executing command: {cmd}')
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_, _, return_code = Popen.run(cmd, shell=True)
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if return_code != 0:
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raise PostProcessingError(f'Command returned error code {return_code}')
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return [], info
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# Deprecated
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class ExecAfterDownloadPP(ExecPP):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.deprecation_warning(
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'yt_dlp.postprocessor.ExecAfterDownloadPP is deprecated '
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'and may be removed in a future version. Use yt_dlp.postprocessor.ExecPP instead')
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