同步移动端工程、设备控制改进与发布资料
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"""Explicit mobile capability surface, sharing existing device business operations."""
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from __future__ import annotations
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import base64
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import json
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import time
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import threading
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from io import BytesIO
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from pathlib import Path
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from uuid import UUID, uuid4
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from contextlib import nullcontext
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from app.persistence import atomic_write_bytes
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from app.demo_library import demo_template, demo_animation
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from app.display.service import ANIMATION_PLAYBACK_SPEEDS, AnimationPlaybackConflictError
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from app.templates.store import TemplateConflictError, TemplateNotFoundError
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from .session import RpcError, checked_name
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SETTINGS = ("brightness", "orientation", "matrix_refresh_rate_limit_hz", "performance_mode_enabled")
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class MobileControl:
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def __init__(self, control, network, templates, animations, resolve, apply, get_default, set_default,
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status, storage, library_order=None):
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self.control, self.network = control, network
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self.templates, self.animations = templates, animations
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self.resolve, self.apply = resolve, apply
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self.get_default, self.set_default = get_default, set_default
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self.status, self.storage = status, storage
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self.tasks = {}
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self.library_order = library_order
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self.path = Path(control.store.data_dir) / "mobile/identity.json"
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if self.path.exists():
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identity = json.loads(self.path.read_text(encoding="utf-8"))
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if set(identity) != {"schema", "device_id", "name"} or identity["schema"] != 1:
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raise ValueError("Unsupported mobile identity")
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UUID(identity["device_id"])
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checked_name(identity["name"])
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self.identity_record = identity
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else:
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self.identity_record = dict(schema=1, device_id=str(uuid4()), name="奇妙小屏幕")
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self._persist_identity(self.identity_record)
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def _persist_identity(self, identity):
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atomic_write_bytes(self.path, (json.dumps(identity, ensure_ascii=False) + "\n").encode("utf-8"))
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def identity(self):
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record = self.identity_record
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return dict(device_id=record["device_id"], device_name=record["name"],
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short_id=record["device_id"].replace("-", "")[:8], protocol_major=1, protocol_minor=0,
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capabilities=["status", "settings", "library", "playback", "frame", "device_name", "wifi", "wifi_scan"],
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limits=dict(max_message_bytes=65536, library_page_size=50, preview_interval_ms=2000))
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def settings(self):
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config = self.control.store.config
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values = {key: config[key] for key in SETTINGS}
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values["prompt_delay_seconds"] = self.network.get_cached_status()["prompt_delay_seconds"]
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return dict(revision=self.control.revision(values), values=values, writable_fields=list(values),
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allowed=dict(orientation=[0, 90, 180, 270], matrix_refresh_rate_limit_hz=[15, 20, 30, 45, 60, 80, 100],
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playback_speeds=list(ANIMATION_PLAYBACK_SPEEDS)))
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def _content(self, params):
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reference = {key: params.get(key) for key in ("type", "id")}
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resolved = self.resolve(reference)
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if params.get("revision") != resolved["revision"]:
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raise RpcError("CONFLICT", "内容已改变，请刷新")
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return resolved
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@staticmethod
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def _png(image):
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output = BytesIO()
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image.save(output, format="PNG")
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return dict(mime="image/png", data_base64=base64.b64encode(output.getvalue()).decode("ascii"))
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def dispatch(self, method, params):
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try:
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with self.control.lock, (self.network.configuration_lock if method in ('wifi.get', 'wifi.set') else nullcontext()):
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return self._dispatch(method, params)
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except (TemplateConflictError, AnimationPlaybackConflictError):
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raise RpcError("CONFLICT", "内容或播放会话已改变，请刷新") from None
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except TemplateNotFoundError:
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raise RpcError("NOT_FOUND", "内容不存在") from None
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except (ValueError, TypeError, KeyError):
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raise RpcError("BAD_REQUEST", "参数无效，请检查后重试") from None
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def _dispatch(self, method, params):
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if method == 'wifi.scan':
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return dict(networks=self.network.backend.scan(), scanned_at_ms=int(time.time() * 1000))
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if method == 'wifi.get':
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return self.wifi()
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if method == 'wifi.set':
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before = self.wifi()
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if params.get('expected_revision') != before['revision']:
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raise RpcError('CONFLICT', '网络设置已改变，请刷新')
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action = params.get('password_action')
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security = params.get('security')
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if security not in ('open', 'wpa-psk') or action not in ('keep', 'replace', 'none'):
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raise ValueError()
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saved = before.get('saved') or {}
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if security == 'open':
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if action != 'none' or params.get('password'):
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raise ValueError()
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elif action == 'keep':
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if params.get('ssid') != saved.get('ssid') or not saved.get('password_configured') or params.get('password'):
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raise ValueError()
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elif action != 'replace' or not params.get('password'):
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raise ValueError()
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values = {key: params[key] for key in ('ssid', 'security', 'ipv4_mode', 'address', 'prefix', 'gateway', 'dns_servers', 'activation') if key in params}
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values['password'] = params.get('password') if action == 'replace' else None
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result = self.network.save_settings(values)
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task_id = result['operation_id']
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if len(self.tasks) >= 64:
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del self.tasks[next(iter(self.tasks))]
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self.tasks[task_id] = dict(state='pending' if result['activation'] == 'immediate' else 'succeeded', stage='saved')
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if result['activation'] == 'immediate':
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threading.Thread(target=self._activate, args=(task_id,), name='mobile-wifi', daemon=True).start()
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return dict(revision=self.wifi()['revision'], task_id=task_id)
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if method == 'task.get':
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task_id = params.get('task_id')
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if not isinstance(task_id, str) or task_id not in self.tasks:
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raise RpcError('NOT_FOUND', '任务不存在或已过期')
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return dict(self.tasks[task_id])
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if method == "device.rename":
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identity = {**self.identity_record, "name": checked_name(params.get("name"))}
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self._persist_identity(identity)
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self.identity_record = identity
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return self.identity()
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if method == "status.get":
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return self.status()
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if method == "storage.get":
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return self.storage()
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if method == "settings.get":
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return self.settings()
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if method == "settings.patch":
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if params.get("expected_revision") != self.settings()["revision"]:
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raise RpcError("CONFLICT", "设置已改变，请刷新")
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changes = params.get("changes")
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if not isinstance(changes, dict) or not changes or set(changes) - {*SETTINGS, "prompt_delay_seconds"}:
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raise RpcError("BAD_REQUEST", "不支持的设置字段")
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# Separate NetworkManager persistence from display configuration.
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if "prompt_delay_seconds" in changes and len(changes) != 1:
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raise RpcError("BAD_REQUEST", "网络提示延迟须单独提交")
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if "prompt_delay_seconds" in changes:
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self.network.save_prompt_delay(changes["prompt_delay_seconds"])
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else:
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self.control.update_config(changes)
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return self.settings()
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if method == "library.list":
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items = []
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for kind, records in (("template", [demo_template()] + self.templates.list()["templates"]),
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("animation", [demo_animation()] + self.animations.list()["animations"])):
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for item in records:
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items.append(dict(type=kind, id=item["id"], name=item["name"], revision=item["revision"],
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is_demo=bool(item.get("is_demo", False)), playable=kind == "template" or item.get("frame_count", 0) > 0,
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thumbnail_revision=item["revision"]))
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if self.library_order is not None:
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user_items = [item for item in items if not item['is_demo']]
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order = self.library_order.get([{'type': item['type'], 'id': item['id']} for item in user_items])['items']
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by_key = {(item['type'], item['id']): item for item in user_items}
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items = [item for item in items if item['is_demo']] + [by_key[(ref['type'], ref['id'])] for ref in order]
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revision = self.control.revision(items)
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limit = params.get("limit", 20)
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if type(limit) is not int or not 1 <= limit <= 50:
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raise ValueError()
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offset = 0
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if params.get("cursor"):
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cursor = params["cursor"].split(":")
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if len(cursor) != 2 or cursor[0] != revision:
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raise RpcError("CONFLICT", "内容列表已改变，请重新加载")
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offset = int(cursor[1])
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if not 0 <= offset <= len(items):
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raise ValueError()
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next_offset = offset + limit
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return dict(library_revision=revision, items=items[offset:next_offset],
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next_cursor=f"{revision}:{next_offset}" if next_offset < len(items) else None)
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if method == "library.thumbnail":
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content = self._content(params)
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return self._png(content["image"] if content["type"] == "template" else content["frames"][0]["image"])
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if method in ("content.play", "content.default.set"):
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content = self._content(params)
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if method == "content.default.set":
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return self.set_default({"type": content["type"], "id": content["id"]})
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self.apply(content, notify_activity=True)
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return {key: content[key] for key in ("type", "id", "name", "revision", "is_demo")}
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if method == "content.default.get":
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content = self.get_default()
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return {key: content[key] for key in ("type", "id", "name", "revision", "is_demo")}
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if method == "playback.patch":
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if set(params) - {"session_id", "paused", "position_ms", "speed"}:
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raise ValueError()
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playback = self.control.display.control_animation_playback(params.get("session_id"),
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paused=params.get("paused"), position_ms=params.get("position_ms"), speed=params.get("speed"))
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return dict(animation_playback=playback, state_revision=self.control.display.get_state_revision())
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if method == "frame.get":
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image = self.control.display.get_current_frame()
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revision = self.control.revision(base64.b64encode(image.tobytes()).decode("ascii"))
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if params.get("known_revision") == revision:
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return dict(unchanged=True, frame_revision=revision)
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return dict(unchanged=False, frame_revision=revision, sampled_at_ms=int(time.time() * 1000), **self._png(image))
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raise RpcError("UNSUPPORTED_CAPABILITY", "设备不支持此操作")
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def wifi(self):
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status = self.network.get_status(include_secret=False)
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saved = status.get('saved')
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if saved:
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saved = {key: value for key, value in saved.items() if key != 'password'}
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saved.setdefault('security', 'wpa-psk' if saved.get('password_configured') else 'open')
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revision = self.control.revision(dict(saved=saved, generation=self.network.settings_revision))
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return {**status, 'saved': saved, 'revision': revision}
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def _activate(self, task_id):
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self.tasks[task_id] = dict(state='running', stage='connecting')
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try:
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self.network.activate_saved(task_id)
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operation = self.network.get_cached_status().get('operation') or {}
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state = operation.get('state') if operation.get('id') == task_id else 'failed'
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self.tasks[task_id] = dict(state='succeeded' if state == 'succeeded' else 'failed', stage='finished')
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if state != 'succeeded':
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code = operation.get('error_code', 'UNKNOWN')
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self.tasks[task_id]['error_code'] = code if code in {'AUTH_FAILED', 'NETWORK_UNAVAILABLE', 'IP_CONFIG_FAILED', 'UNKNOWN'} else 'UNKNOWN'
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except Exception:
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self.tasks[task_id] = dict(state='failed', stage='finished', error_code='UNKNOWN')
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