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bebe819 95a405f bebe819 95a405f bebe819 95a405f bebe819 95a405f bebe819 95a405f bebe819 95a405f bebe819 fa26615 bebe819 fa26615 95a405f bebe819 95a405f bebe819 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | """Trusted worker watchdog; distinguish startup failures from candidate hangs."""
import json
import os
from pathlib import Path
import signal
import subprocess
import sys
import tempfile
import time
def supervise(request, worker='/opt/smolscript/worker.py', worker_uid=None, worker_gid=None,
startup_seconds=45, candidate_seconds=None, total_seconds=240, workspace=None):
request=Path(request).resolve()
workspace=Path(workspace).resolve() if workspace is not None else request.parent
payload=json.loads(request.read_text())
if candidate_seconds is None:candidate_seconds=max(6,3*payload.get('timeout_seconds',3))
with tempfile.TemporaryDirectory(dir=workspace,prefix='watchdog-') as directory:
os.chmod(directory,0o777)
state_path=Path(directory)/'state.json'
env={k:v for k,v in os.environ.items() if k in ('PATH','HOME','LANG','LC_ALL','TZ','PYTHONHASHSEED','PYTHONPATH','PLAYWRIGHT_BROWSERS_PATH')}
env['SMOLSCRIPT_WORKER_STATE']=str(state_path)
env['HOME']=str(workspace)
for key,name in (('XDG_CACHE_HOME','cache'),('XDG_CONFIG_HOME','config'),('TMPDIR','tmp')):
target=Path(directory)/name;target.mkdir(mode=0o777);target.chmod(0o777);env[key]=str(target)
credentials={}
if worker_uid is not None:credentials.update(user=worker_uid,group=worker_gid,extra_groups=[])
with tempfile.TemporaryFile() as stdout,tempfile.TemporaryFile() as stderr:
process=subprocess.Popen([sys.executable,str(worker),str(request)],cwd=workspace,
stdout=stdout,stderr=stderr,env=env,start_new_session=True,**credentials)
started=time.monotonic();phase_started=started;previous=None;state={}
try:
while process.poll() is None:
try:state=json.loads(state_path.read_text())
except (FileNotFoundError,json.JSONDecodeError):pass
phase=(state.get('phase'),state.get('scenario'),state.get('operation'))
if phase!=previous:previous=phase;phase_started=time.monotonic()
now=time.monotonic()
candidate=state.get('phase')=='candidate' and not payload.get('diagnostic')
browser=payload.get('diagnostic') or payload.get('kind') in ('html','css','dom')
limit=(candidate_seconds if candidate else startup_seconds) if browser else total_seconds
if now-phase_started>limit or now-started>total_seconds:
if candidate and isinstance(state.get('syntax_success'),bool):
observations=list(state.get('observations',[]))
for _ in range(len(payload.get('scenarios',[]))-len(observations)):
observations.append({'actual':[],'baseline':[],
'error':'CandidateTimeout: browser execution exceeded its wall-time limit'})
return {'syntax_success':state['syntax_success'],'observations':observations,'candidate_timeout':True}
stderr.seek(0)
detail=stderr.read(2000).decode('utf8','replace')
raise RuntimeError('SmolScript worker timed out during browser/runtime setup; evaluation incomplete; '
f"phase={state.get('phase','worker_start')} operation={state.get('operation')} "
f"scenario={state.get('scenario')} language={payload.get('language',payload.get('kind'))}; stderr={detail}")
try:process.wait(timeout=.1)
except subprocess.TimeoutExpired:pass
stdout.seek(0);stderr.seek(0)
if process.returncode:
raise RuntimeError('SmolScript sandbox worker failed: '+stderr.read(2000).decode('utf8','replace'))
response=json.loads(stdout.read(8*1024*1024))
if response.get('infrastructure_error'):raise RuntimeError(response['infrastructure_error'])
return response
finally:
# Kill descendants even if the worker exited but left children alive.
try:os.killpg(process.pid,signal.SIGKILL)
except ProcessLookupError:pass
process.wait(timeout=5)
if __name__=='__main__':
try:response=supervise(sys.argv[1],workspace=Path.cwd())
except Exception as exc:response={'infrastructure_error':type(exc).__name__+': '+str(exc)[:2000]}
print(json.dumps(response,allow_nan=False))
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