33 lines
1.5 KiB
Python
33 lines
1.5 KiB
Python
#!/usr/bin/env python3
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"""Prism Java wrapper: inject the camera secret without putting it in launcher arguments/logs."""
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import os
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from pathlib import Path
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import re
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import sys
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ROOT = Path(__file__).resolve().parents[1]
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RUNTIME = Path(os.environ.get('MCB_RUNTIME_DIR') or ROOT / '.runtime').expanduser().resolve()
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def main():
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if len(sys.argv) < 2:
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raise SystemExit('This helper is a Prism WrapperCommand; it requires the Java command.')
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config = Path(os.environ.get('MCB_CAMERA_PAPER_CONFIG') or RUNTIME / 'server/plugins/MinecraftBuilderMCP/config.yml').expanduser()
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try:
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data = config.read_text()
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token_match = re.search(r'^camera-token:[ \t]*([^\r\n]+)$', data, re.M)
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port_match = re.search(r'^camera-port:[ \t]*(\d+)[ \t]*$', data, re.M)
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token = token_match.group(1).strip().strip("'\"") if token_match else ''
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port = int(port_match.group(1)) if port_match else 8766
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if not re.fullmatch(r'[A-Za-z0-9._~-]{32,512}', token) or not 1024 <= port <= 65535:
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raise ValueError('Invalid camera configuration')
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except (OSError, ValueError):
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raise SystemExit('Cannot read a valid camera token/port from the private Paper config.')
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environment = dict(os.environ, MCB_CAMERA_TOKEN=token, MCB_CAMERA_PORT=str(port))
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auto = re.search(r'^camera-auto-connect:[ \t]*[\'\"]?(127\.0\.0\.1:[0-9]{1,5})[\'\"]?[ \t]*$', data, re.M)
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if auto:
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environment['MCB_CAMERA_AUTO_CONNECT'] = auto.group(1)
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os.execvpe(sys.argv[1], sys.argv[1:], environment)
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if __name__ == '__main__':
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main()
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