mirror of
https://git.datalinker.icu/comfyanonymous/ComfyUI
synced 2026-09-02 22:47:20 +08:00
bd78a3455f
We now only send 1 preview message of the latest type the client can support. We'll add a console warning when the client fails to send a feature flags message at some point in the future.
70 lines
1.8 KiB
Python
70 lines
1.8 KiB
Python
"""
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Feature flags module for ComfyUI WebSocket protocol negotiation.
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This module handles capability negotiation between frontend and backend,
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allowing graceful protocol evolution while maintaining backward compatibility.
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"""
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from typing import Any, Dict
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from comfy.cli_args import args
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# Default server capabilities
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SERVER_FEATURE_FLAGS: Dict[str, Any] = {
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"supports_preview_metadata": True,
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"max_upload_size": args.max_upload_size * 1024 * 1024, # Convert MB to bytes
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}
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def get_connection_feature(
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sockets_metadata: Dict[str, Dict[str, Any]],
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sid: str,
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feature_name: str,
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default: Any = False
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) -> Any:
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"""
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Get a feature flag value for a specific connection.
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Args:
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sockets_metadata: Dictionary of socket metadata
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sid: Session ID of the connection
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feature_name: Name of the feature to check
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default: Default value if feature not found
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Returns:
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Feature value or default if not found
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"""
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if sid not in sockets_metadata:
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return default
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return sockets_metadata[sid].get("feature_flags", {}).get(feature_name, default)
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def supports_feature(
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sockets_metadata: Dict[str, Dict[str, Any]],
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sid: str,
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feature_name: str
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) -> bool:
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"""
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Check if a connection supports a specific feature.
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Args:
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sockets_metadata: Dictionary of socket metadata
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sid: Session ID of the connection
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feature_name: Name of the feature to check
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Returns:
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Boolean indicating if feature is supported
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"""
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return get_connection_feature(sockets_metadata, sid, feature_name, False) is True
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def get_server_features() -> Dict[str, Any]:
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"""
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Get the server's feature flags.
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Returns:
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Dictionary of server feature flags
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"""
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return SERVER_FEATURE_FLAGS.copy()
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