"""Serialised ESPHome CLI jobs. YAML/secrets stay local; no shell or arbitrary commands.""" import asyncio from collections import deque import glob import json import os from pathlib import Path import re import shutil import signal import time import yaml from core import installation_yaml class LenientLoader(yaml.SafeLoader): """Reads profile metadata without resolving !secret or !include.""" LenientLoader.add_multi_constructor('!', lambda loader, suffix, node: None) class Firmware: def __init__(self, root, data): self.root, self.data = Path(root).resolve(), Path(data) self.job = None self.task = None self.logs = deque(maxlen=300) self.process = None def profiles(self): if not self.root.exists(): return [] return [{'file': p.name} for p in sorted(self.root.glob('*.yaml')) if p.name != 'secrets.yaml' and p.is_file() and not p.is_symlink()] def profile_names(self): """{file: {'node': esphome name, 'friendly': friendly name}} for every readable profile.""" found = {} for entry in self.profiles(): try: data = yaml.load((self.root / entry['file']).read_text(), Loader=LenientLoader) except (OSError, yaml.YAMLError, UnicodeError): continue block = data.get('esphome') if isinstance(data, dict) else None if not isinstance(block, dict): continue substitutions = data.get('substitutions') if isinstance(data.get('substitutions'), dict) else {} def resolve(value): if isinstance(value, str) and value.startswith('${') and value.endswith('}'): value = substitutions.get(value[2:-1]) return value if isinstance(value, str) else None found[entry['file']] = {'node': resolve(block.get('name')), 'friendly': resolve(block.get('friendly_name'))} return found def ports(self): return sorted(set(glob.glob('/dev/serial/by-id/*') or glob.glob('/dev/ttyUSB*') + glob.glob('/dev/ttyACM*'))) def profile(self, name): if not isinstance(name,str) or not re.fullmatch(r'[a-zA-Z0-9_-]+\.yaml', name): raise ValueError('Kies een bestaand YAML-profiel.') p = self.root / name if p.is_symlink() or p.resolve().parent != self.root or not p.is_file(): raise ValueError('Profiel bestaat niet in de ESPHome-map.') return p def wifi_status(self): # Return availability only; never send secret values to the browser. path = self.root / 'secrets.yaml' if not path.exists(): return {'state': 'new', 'missing': ['wifi_ssid', 'wifi_password']} try: values = yaml.safe_load(path.read_text()) if not isinstance(values, dict): return {'state': 'invalid'} missing = [key for key in ('wifi_ssid', 'wifi_password') if not isinstance(values.get(key), str)] if isinstance(values.get('wifi_ssid'), str) and not values['wifi_ssid'].strip(): missing.append('wifi_ssid') return {'state': 'missing' if missing else 'ready', 'missing': missing} except (OSError, yaml.YAMLError, UnicodeError): return {'state': 'invalid'} def status(self): return {'available': bool(shutil.which('esphome')), 'profiles': self.profiles(), 'ports': self.ports(), 'job': self.job, 'logs': list(self.logs), 'wifi': self.wifi_status()} def create(self, data): content = installation_yaml(data) self.root.mkdir(parents=True,exist_ok=True) # Existing wifi secrets remain untouched. New owners can supply them once. secret_path = self.root / 'secrets.yaml' wifi = self.wifi_status() if wifi['state'] in ('missing', 'invalid'): raise ValueError('Controleer wifi_ssid en wifi_password in ESPHome secrets.yaml. Bestaande secrets blijven behouden.') if wifi['state'] == 'new': ssid, password = data.get('wifi_ssid'), data.get('wifi_password') if not isinstance(ssid,str) or not ssid.strip() or not isinstance(password,str): raise ValueError('Vul wifi in voor deze eerste installatie.') with secret_path.open('x') as f: os.chmod(secret_path,0o600) yaml.safe_dump({'wifi_ssid':ssid,'wifi_password':password}, f) profile = self.root / (data['name']+'.yaml') try: with profile.open('x') as f: os.chmod(profile,0o600);f.write(content) except FileExistsError: raise ValueError('Deze naam bestaat al. Gebruik het bestaande profiel voor updates.') return {'file':profile.name, 'yaml':content} def redact(self, text): text = re.sub(r'\x1b\[[0-?]*[ -/]*[@-~]', '', text) for value in self._secret_values: if len(value) >= 3: text=text.replace(value,'[redacted]') return re.sub(r'(?i)((?:password|encryption.key|token|ssid)\s*[:=]\s*).+',r'\1[redacted]',text)[:1500] def start(self, data): if self.task and not self.task.done(): raise ValueError('Er loopt al een build of installatie.') profile = self.profile(data.get('file')) action = data.get('action') if action not in ('validate','build','install'): raise ValueError('Onbekende firmwareactie.') if not shutil.which('esphome'): raise ValueError('ESPHome CLI ontbreekt in deze installatie.') target = data.get('target','') if action == 'install': if target.startswith('/dev/'): if target not in self.ports(): raise ValueError('Kies de aangesloten USB-poort uit de lijst.') elif not re.fullmatch(r'[a-zA-Z0-9][a-zA-Z0-9.-]{0,252}',target): raise ValueError('Vul het IP-adres of de hostnaam van het bedoelde scherm in.') self._secret_values=set() # Collect scalar literals, including !secret values, without executing YAML tags. def collect(node): if isinstance(node,yaml.ScalarNode): if node.value: self._secret_values.add(node.value) elif isinstance(node,yaml.SequenceNode): for child in node.value: collect(child) elif isinstance(node,yaml.MappingNode): for key,value in node.value: if key.value in ('password','key','ssid','token') or profile.name=='secrets.yaml':collect(value) elif isinstance(value,(yaml.MappingNode,yaml.SequenceNode)):collect(value) collect(yaml.compose(profile.read_text())) secret_file=self.root/'secrets.yaml' if secret_file.exists(): node=yaml.compose(secret_file.read_text()) if isinstance(node,yaml.MappingNode): for _,v in node.value:collect(v) self.logs.clear() self.job={'file':profile.name,'action':action,'target':target,'state':'running','started':time.time()} self.task=asyncio.create_task(self.run(profile,action,target)) return dict(self.job) async def run(self, profile, action, target): env={**os.environ, 'PLATFORMIO_CORE_DIR':str(self.data/'platformio'), 'ESPHOME_BUILD_PATH':str(self.data/'build'/profile.stem), 'NO_COLOR':'1'} try: stages = ['config'] if action=='validate' else ['compile'] + (['upload'] if action=='install' else []) for stage in stages: cmd=['esphome']+(['--quiet'] if stage=='config' else [])+[stage,str(profile)] if stage=='upload': cmd += ['--device',target] self.logs.append('ESPHome: '+stage) self.process=await asyncio.create_subprocess_exec(*cmd,cwd=self.root,env=env,stdout=asyncio.subprocess.PIPE,stderr=asyncio.subprocess.STDOUT,limit=1024*1024,start_new_session=True) async with asyncio.timeout(7200): async for line in self.process.stdout: self.logs.append(self.redact(line.decode(errors='replace').rstrip())) code=await self.process.wait() if code: raise RuntimeError('ESPHome '+stage+' mislukt; bekijk het log.') self.job['state']='success'; self.logs.append('Geslaagd: '+action) except asyncio.CancelledError: self.job['state']='interrupted' raise except Exception as error: self.job['state']='failed';self.logs.append(self.redact(str(error))) finally: if self.process and self.process.returncode is None: os.killpg(self.process.pid,signal.SIGTERM) try: await asyncio.wait_for(self.process.wait(),10) except TimeoutError: os.killpg(self.process.pid,signal.SIGKILL);await self.process.wait() self.process=None self.job['finished']=time.time()