Vito
f9835aa4d6
civitai.red and civitai.green (and their subdomains) are now allowed redirect targets under the civitai.com rules: HTTPS only, default port, no credentials, matched on the parsed host name, at most 3 hops, never with the key. Their www/api/image hosts are also allowed starting hosts, whose first request carries the key as image.civitai.com does. Each failed download now logs one warning with the URL without query or credentials and a short reason: HTTP status, refused redirect, hop limit, size cap, decode or save error, timeout or network error.
969 lines
32 KiB
Python
969 lines
32 KiB
Python
"""Utilities for LoraManager integration.
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Provides detection, metadata reading, and trigger word lookup for
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ComfyUI-Lora-Manager (https://github.com/willmiao/ComfyUI-Lora-Manager).
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All functions are safe to call when LoraManager is not installed — they
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return empty results rather than raising.
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"""
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import hashlib
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import http.client
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import json
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import os
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import re
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import threading
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import urllib.error
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import urllib.request
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from pathlib import Path
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from typing import Dict, List, Optional, Tuple
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from urllib.parse import urljoin, urlsplit
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try:
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from ..utils.logging_config import get_logger
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except ImportError:
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import sys
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from utils.logging_config import get_logger
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logger = get_logger("prompt_manager.lora_utils")
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# ── LoraManager detection ────────────────────────────────────────────
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def find_comfyui_root() -> Optional[Path]:
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"""Walk upward from this file to find the ComfyUI root (contains main.py).
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Tries both the resolved (real) path and the unresolved path to handle
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symlinked custom_nodes installations.
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"""
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start_paths = [Path(__file__).resolve().parent]
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# If installed via symlink, the unresolved path leads through custom_nodes/
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raw_path = Path(__file__).parent
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if raw_path.resolve() != raw_path:
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start_paths.append(raw_path)
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# Also try via folder_paths if available (ComfyUI runtime)
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try:
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import folder_paths
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base = Path(folder_paths.base_path)
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if base.is_dir():
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return base
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except (ImportError, AttributeError):
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# folder_paths unavailable — not running inside ComfyUI runtime
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pass
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for start in start_paths:
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current = start
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for _ in range(10):
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if (current / "main.py").exists() and (current / "custom_nodes").exists():
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return current
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parent = current.parent
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if parent == current:
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break
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current = parent
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return None
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def detect_lora_manager(custom_path: str = "") -> Optional[str]:
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"""Return the absolute path to ComfyUI-Lora-Manager if installed.
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Args:
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custom_path: User-provided override path. Checked first.
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Returns:
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Absolute path string, or None if not found.
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"""
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# 1. User override
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if custom_path:
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p = Path(custom_path)
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if p.is_dir() and _looks_like_lora_manager(p):
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return str(p.resolve())
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# 2. Auto-detect in every custom_nodes folder (case-insensitive scan):
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# ComfyUI's own first, then the extra ones it registered (#144).
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folders = []
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root = find_comfyui_root()
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if root:
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folders.append(root / "custom_nodes")
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folders.extend(custom_nodes_directories())
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seen = set()
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for custom_nodes in folders:
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key = os.path.normcase(os.path.abspath(str(custom_nodes)))
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if key in seen:
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continue
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seen.add(key)
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found = _lora_manager_in(Path(custom_nodes))
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if found:
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return found
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return None
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def _lora_manager_in(custom_nodes: Path) -> Optional[str]:
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"""The LoraManager install directly under ``custom_nodes``, or None."""
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try:
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entries = sorted(custom_nodes.iterdir()) if custom_nodes.is_dir() else []
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except OSError:
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return None
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for entry in entries:
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try:
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if (
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entry.is_dir()
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and "lora" in entry.name.lower()
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and "manager" in entry.name.lower()
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and _looks_like_lora_manager(entry)
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):
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return str(entry.resolve())
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except OSError:
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continue
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return None
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def _looks_like_lora_manager(path: Path) -> bool:
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"""Heuristic: does this directory look like a LoraManager install?"""
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# Must have __init__.py (ComfyUI extension) or README.md
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has_init = (path / "__init__.py").exists()
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if not has_init:
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return False
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# Check for characteristic structure: py/ dir, or any .metadata.json nearby
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return (path / "py").is_dir() or (path / "lora_manager").is_dir()
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def _public_path_anchors() -> List[str]:
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"""Directories the API's public (relative) paths are rendered against."""
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try:
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from .config import GalleryConfig
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except ImportError:
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try:
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from config import GalleryConfig
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except ImportError:
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return []
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try:
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return list(GalleryConfig.path_anchors())
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except Exception:
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return []
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def custom_nodes_directories() -> List[Path]:
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"""ComfyUI ``custom_nodes`` directories a LoraManager install may live in.
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Inside ComfyUI these come from ``folder_paths`` (``base_path`` plus any
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registered ``custom_nodes`` folders); outside it, the parent of this
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package, which is ``custom_nodes`` for a normal install.
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"""
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found: List[Path] = []
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def add(candidate) -> None:
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try:
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resolved = Path(candidate).resolve()
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except (OSError, RuntimeError, ValueError):
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return
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if resolved not in found:
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found.append(resolved)
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try:
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import folder_paths
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except ImportError:
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folder_paths = None
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if folder_paths is not None:
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base = getattr(folder_paths, "base_path", None)
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if isinstance(base, str) and base:
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add(Path(base) / "custom_nodes")
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getter = getattr(folder_paths, "get_folder_paths", None)
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if callable(getter):
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try:
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registered = getter("custom_nodes") or []
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except Exception:
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registered = []
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for entry in registered:
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add(entry)
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if not found:
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add(Path(__file__).resolve().parent.parent.parent)
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return found
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def resolve_lora_manager_path(path) -> Optional[str]:
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"""Canonical form of ``path`` when it may be used as the LoraManager install.
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Accepted: an existing directory that is a direct child of one of
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:func:`custom_nodes_directories` and whose name contains ``lora``
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(case-insensitive). A relative path is tried against the ComfyUI root
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and each custom_nodes directory. Anything else, including a symlink
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that escapes custom_nodes, yields None.
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"""
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if not isinstance(path, str) or not path.strip():
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return None
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path = path.strip()
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roots = []
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for root in custom_nodes_directories():
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try:
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roots.append(Path(os.path.normcase(os.path.realpath(str(root)))))
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except (OSError, ValueError):
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continue
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candidates = [path]
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if not os.path.isabs(path):
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# Public (API) paths are relative to these anchors; the ComfyUI root
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# and the custom_nodes directories cover hand-typed relative paths.
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bases = list(_public_path_anchors())
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comfy_root = find_comfyui_root()
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if comfy_root:
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bases.append(comfy_root)
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bases.extend(root.parent for root in roots)
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bases.extend(roots)
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candidates = [os.path.join(str(base), path) for base in bases]
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for candidate in candidates:
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try:
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canonical = Path(os.path.normcase(os.path.realpath(candidate)))
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is_dir = canonical.is_dir()
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except (OSError, RuntimeError, ValueError):
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continue
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if not is_dir or "lora" not in canonical.name.lower():
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continue
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if canonical.parent in roots:
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return str(canonical)
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return None
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# ── Metadata reading ─────────────────────────────────────────────────
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def find_lora_directories(lora_manager_path: str) -> List[str]:
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"""Find directories that contain LoRA models (with .metadata.json files).
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Searches: ComfyUI models/loras, extra_model_paths.yaml lora dirs,
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and the LoraManager extension dir itself.
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"""
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dirs = set()
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lm_path = Path(lora_manager_path)
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root = find_comfyui_root()
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if root:
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# Default models/loras
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models_loras = root / "models" / "loras"
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if models_loras.is_dir():
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dirs.add(str(models_loras.resolve()))
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# Extra model paths from ComfyUI config
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for extra_dir in _get_extra_lora_paths(root):
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if extra_dir.is_dir():
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dirs.add(str(extra_dir.resolve()))
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# Also try folder_paths at runtime (catches all configured paths)
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try:
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import folder_paths
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for p in folder_paths.get_folder_paths("loras"):
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pp = Path(p)
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if pp.is_dir():
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dirs.add(str(pp.resolve()))
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except (ImportError, AttributeError):
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# folder_paths unavailable — not running inside ComfyUI runtime
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pass
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# Check for any .metadata.json in the LoraManager dir tree
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for meta in lm_path.rglob("*.metadata.json"):
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dirs.add(str(meta.parent.resolve()))
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return sorted(dirs)
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def _get_extra_lora_paths(comfyui_root: Path) -> List[Path]:
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"""Parse extra_model_paths.yaml for additional LoRA directories."""
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results = []
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for name in ("extra_model_paths.yaml", "extra_model_paths.yml"):
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config_file = comfyui_root / name
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if not config_file.exists():
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continue
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try:
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import yaml
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config = yaml.safe_load(config_file.read_text())
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if not isinstance(config, dict):
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continue
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for section in config.values():
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if not isinstance(section, dict):
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continue
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base = Path(section.get("base_path", ""))
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loras_val = section.get("loras", "")
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if not loras_val:
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continue
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for line in str(loras_val).strip().splitlines():
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line = line.strip()
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if not line:
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continue
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p = Path(line)
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if not p.is_absolute():
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p = base / line
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if p.is_dir():
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results.append(p)
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except Exception as e:
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logger.debug(f"Failed to parse {config_file}: {e}")
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return results
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def read_lora_metadata(metadata_path: Path) -> Optional[Dict]:
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"""Read and parse a single .metadata.json file.
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Returns:
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Parsed dict, or None on failure.
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"""
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try:
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with open(metadata_path, "r", encoding="utf-8") as f:
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return json.load(f)
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except (json.JSONDecodeError, OSError) as e:
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logger.debug(f"Failed to read {metadata_path}: {e}")
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return None
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def _get_civitai(metadata: Dict) -> Dict:
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"""Safely get the civitai dict, handling None values."""
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return metadata.get("civitai") or {}
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def get_trigger_words_from_metadata(metadata: Dict) -> List[str]:
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"""Extract trigger words from a parsed LoraManager metadata dict."""
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civitai = _get_civitai(metadata)
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words = civitai.get("trainedWords", [])
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if isinstance(words, list):
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return [w.strip() for w in words if isinstance(w, str) and w.strip()]
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return []
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def get_example_prompt_from_metadata(metadata: Dict) -> Optional[str]:
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"""Extract an example prompt from civitai image metadata.
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Looks at civitai.images[].meta.prompt for the first available example.
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"""
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civitai = _get_civitai(metadata)
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images = civitai.get("images", []) or []
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for img in images:
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if not isinstance(img, dict):
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continue
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meta = img.get("meta")
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if isinstance(meta, dict):
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prompt = meta.get("prompt", "")
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if isinstance(prompt, str) and prompt.strip():
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return prompt.strip()
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return None
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def get_civitai_image_urls(metadata: Dict) -> List[str]:
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"""Extract all civitai example image URLs from metadata."""
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civitai = _get_civitai(metadata)
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urls = []
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for img in civitai.get("images", []) or []:
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if not isinstance(img, dict):
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continue
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url = img.get("url", "")
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if isinstance(url, str) and url.strip():
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urls.append(url.strip())
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return urls
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def get_model_name_from_metadata(metadata: Dict) -> str:
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"""Extract the model display name from metadata."""
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name = metadata.get("model_name", "")
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if not name:
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civitai = _get_civitai(metadata)
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model = civitai.get("model") or {}
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name = model.get("name", "")
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if not name:
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name = metadata.get("file_name", "unknown")
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return name
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def get_preview_images_from_metadata(metadata: Dict, metadata_path: Path) -> List[str]:
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"""Find all local preview/example image paths for a LoRA.
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Returns:
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List of absolute path strings to image files.
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"""
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results = []
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lora_dir = metadata_path.parent
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file_name = metadata.get("file_name", "")
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if not file_name:
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stem = metadata_path.name.replace(".metadata.json", "")
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file_name = stem
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base_name = Path(file_name).stem
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# Check standard preview naming conventions
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for ext in (
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".png",
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".jpg",
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".jpeg",
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".webp",
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".preview.png",
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".preview.jpg",
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".preview.jpeg",
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):
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candidate = lora_dir / f"{base_name}{ext}"
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if candidate.exists():
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results.append(str(candidate.resolve()))
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return results
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def get_preview_image_from_metadata(
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metadata: Dict, metadata_path: Path
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) -> Optional[str]:
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"""Find the first preview image path for a LoRA (backward compat)."""
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images = get_preview_images_from_metadata(metadata, metadata_path)
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return images[0] if images else None
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_THUMB_MAX_SIZE = 512
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# CivitAI's own domains (#340: civitai.red and civitai.green serve the same
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# content as civitai.com).
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CIVITAI_DOMAINS = ("civitai.com", "civitai.red", "civitai.green")
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# Only these hosts may ever receive the CivitAI API key, and only over HTTPS.
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CIVITAI_HOSTS = frozenset(
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f"{prefix}{domain}"
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for domain in CIVITAI_DOMAINS
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for prefix in ("", "www.", "api.", "image.")
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)
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MAX_CIVITAI_DOWNLOAD_BYTES = 50 * 1024 * 1024
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_DOWNLOAD_CHUNK_BYTES = 64 * 1024
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# A redirect is followed (#337: image.civitai.com now answers with a redirect
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# to blobs-b2.civitai.com) only over HTTPS to one of CIVITAI_DOMAINS or a
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# subdomain of one, at most this many hops, and never with the API key.
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MAX_CIVITAI_REDIRECTS = 3
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_REDIRECT_CODES = frozenset({301, 302, 303, 307, 308})
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_USER_AGENT = "ComfyUI-PromptManager/1.0"
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class _DownloadFailed(Exception):
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"""A download failed for the short, loggable ``reason`` it carries."""
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def __init__(self, reason: str):
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super().__init__(reason)
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self.reason = reason
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class _RefuseRedirects(urllib.request.HTTPRedirectHandler):
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"""Never follow a redirect inside urllib: it would re-send the Bearer
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header. A 3xx surfaces as ``HTTPError``; ``_download_one`` decides."""
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def redirect_request(self, req, fp, code, msg, headers, newurl):
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return None
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def _build_opener(*handlers) -> urllib.request.OpenerDirector:
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"""Build the outbound opener; extra handlers let tests serve canned responses."""
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return urllib.request.build_opener(_RefuseRedirects, *handlers)
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_opener = _build_opener()
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def _open_url(req: urllib.request.Request, timeout: float = 10):
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"""Open ``req`` through the redirect-refusing opener."""
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return _opener.open(req, timeout=timeout)
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def _loggable(url: str) -> str:
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"""``url`` without its query, fragment or credentials (signed URLs)."""
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try:
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parts = urlsplit(url)
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host = parts.hostname or ""
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except ValueError:
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return "<unparsable URL>"
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return f"{parts.scheme}://{host}{parts.path}"
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def _on_civitai_domain(hostname: str) -> bool:
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"""True when ``hostname`` is one of CIVITAI_DOMAINS or a subdomain of one."""
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return any(
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hostname == domain or hostname.endswith(f".{domain}")
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for domain in CIVITAI_DOMAINS
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)
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def is_civitai_redirect_target(url: str) -> bool:
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"""True when a redirect to ``url`` may be followed: HTTPS on one of
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CIVITAI_DOMAINS or a subdomain of one, matched on the parsed host name,
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default port and no credentials in the URL."""
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try:
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parts = urlsplit(url)
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port = parts.port
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except ValueError:
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return False
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hostname = (parts.hostname or "").lower()
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return (
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parts.scheme == "https"
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and _on_civitai_domain(hostname)
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and parts.username is None
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and parts.password is None
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and port in (None, 443)
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)
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def _redirect_target(url: str, error) -> Optional[str]:
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"""The URL a 3xx ``error`` for ``url`` points to, or None when absent."""
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if error.code not in _REDIRECT_CODES:
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return None
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location = (error.headers.get("Location") or "").strip()
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if not location:
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return None
|
|
return urljoin(url, location)
|
|
|
|
|
|
def _open_following_civitai_redirects(url: str, api_key: str):
|
|
"""Open ``url``, following only allowed CivitAI redirects (keyless).
|
|
|
|
The first request carries the key; every redirected one carries the
|
|
User-Agent alone. Returns the open response; raises ``_DownloadFailed``
|
|
when a redirect is refused or the hop limit is reached. Other HTTP
|
|
errors propagate.
|
|
"""
|
|
headers = {"User-Agent": _USER_AGENT}
|
|
if api_key:
|
|
headers["Authorization"] = f"Bearer {api_key}"
|
|
current = url
|
|
for hop in range(MAX_CIVITAI_REDIRECTS + 1):
|
|
req = urllib.request.Request(current, headers=headers)
|
|
try:
|
|
return _open_url(req, timeout=10)
|
|
except urllib.error.HTTPError as error:
|
|
with error:
|
|
target = _redirect_target(current, error)
|
|
if target is None:
|
|
raise
|
|
if hop == MAX_CIVITAI_REDIRECTS:
|
|
raise _DownloadFailed(f"more than {MAX_CIVITAI_REDIRECTS} redirects")
|
|
if not is_civitai_redirect_target(target):
|
|
raise _DownloadFailed(f"redirect refused to {_loggable(target)}")
|
|
logger.debug(f"Following redirect to {_loggable(target)}")
|
|
current = target
|
|
headers = {"User-Agent": _USER_AGENT} # never the key across a redirect
|
|
raise AssertionError("unreachable") # pragma: no cover - loop ends above
|
|
|
|
|
|
def is_civitai_url(url: str) -> bool:
|
|
"""True when ``url`` is an HTTPS URL on an allow-listed CivitAI host."""
|
|
try:
|
|
parts = urlsplit(url)
|
|
port = parts.port
|
|
except ValueError:
|
|
return False
|
|
hostname = (parts.hostname or "").lower()
|
|
return (
|
|
parts.scheme == "https"
|
|
and hostname in CIVITAI_HOSTS
|
|
and parts.username is None
|
|
and parts.password is None
|
|
and port in (None, 443)
|
|
)
|
|
|
|
|
|
def _read_capped(resp, cap: int) -> Optional[bytes]:
|
|
"""Read a response body, refusing anything larger than ``cap`` bytes."""
|
|
declared = resp.headers.get("Content-Length")
|
|
if declared is not None:
|
|
try:
|
|
if int(declared) > cap:
|
|
return None
|
|
except ValueError:
|
|
pass
|
|
|
|
chunks = []
|
|
total = 0
|
|
while True:
|
|
chunk = resp.read(_DOWNLOAD_CHUNK_BYTES)
|
|
if not chunk:
|
|
break
|
|
total += len(chunk)
|
|
if total > cap:
|
|
return None
|
|
chunks.append(chunk)
|
|
return b"".join(chunks)
|
|
|
|
|
|
def _network_reason(error: BaseException) -> str:
|
|
"""A short reason for a failed request: a timeout or a network error."""
|
|
cause = getattr(error, "reason", error) # URLError wraps the socket error
|
|
if isinstance(cause, TimeoutError):
|
|
return "timed out"
|
|
return f"network error: {cause}"
|
|
|
|
|
|
def _fetch_civitai_body(url: str, api_key: str) -> bytes:
|
|
"""The body behind ``url`` (redirects as allowed, size capped), or
|
|
``_DownloadFailed`` with the reason it could not be fetched."""
|
|
try:
|
|
with _open_following_civitai_redirects(url, api_key) as resp:
|
|
raw = _read_capped(resp, MAX_CIVITAI_DOWNLOAD_BYTES)
|
|
except urllib.error.HTTPError as error:
|
|
error.close()
|
|
raise _DownloadFailed(f"HTTP {error.code}") from None
|
|
except (urllib.error.URLError, OSError, http.client.HTTPException) as error:
|
|
raise _DownloadFailed(_network_reason(error)) from None
|
|
if raw is None:
|
|
cap = MAX_CIVITAI_DOWNLOAD_BYTES
|
|
size = f"{cap // (1024 * 1024)} MB" if cap >= 1024 * 1024 else f"{cap} byte"
|
|
raise _DownloadFailed(f"larger than the {size} cap")
|
|
return raw
|
|
|
|
|
|
def _thumbnail(raw: bytes):
|
|
"""``raw`` decoded and shrunk to an RGB thumbnail, or ``_DownloadFailed``."""
|
|
from io import BytesIO
|
|
|
|
from PIL import Image
|
|
|
|
try:
|
|
with Image.open(BytesIO(raw)) as img:
|
|
img.thumbnail((_THUMB_MAX_SIZE, _THUMB_MAX_SIZE), Image.LANCZOS)
|
|
return img.convert("RGB")
|
|
except Exception as error: # PIL raises several types for bad data
|
|
raise _DownloadFailed(
|
|
f"image could not be decoded ({type(error).__name__})"
|
|
) from None
|
|
|
|
|
|
def _download_one(url: str, local_path: Path, api_key: str) -> Optional[str]:
|
|
"""Download a single CivitAI image, resize to thumbnail, save as JPEG.
|
|
|
|
Refuses any URL that is not HTTPS on an allow-listed CivitAI host so the
|
|
API key is never sent elsewhere, follows a redirect only as
|
|
``_open_following_civitai_redirects`` allows (without the key), and
|
|
refuses bodies larger than MAX_CIVITAI_DOWNLOAD_BYTES. A failure logs
|
|
one warning with a short reason and the URL without query or
|
|
credentials (#340), and returns None.
|
|
"""
|
|
try:
|
|
if not is_civitai_url(url):
|
|
raise _DownloadFailed("not an allowed CivitAI URL")
|
|
image = _thumbnail(_fetch_civitai_body(url, api_key))
|
|
try:
|
|
_save_atomically(image, local_path)
|
|
except OSError as error:
|
|
raise _DownloadFailed(
|
|
f"image could not be saved ({error.strerror or type(error).__name__})"
|
|
) from None
|
|
except _DownloadFailed as failure:
|
|
reason = failure.reason
|
|
except Exception as error: # best effort: an import never fails on one image
|
|
reason = f"unexpected {type(error).__name__}"
|
|
else:
|
|
return str(local_path.resolve())
|
|
logger.warning(f"CivitAI image download failed: {_loggable(url)}: {reason}")
|
|
return None
|
|
|
|
|
|
_PART_PREFIX = ".pm-"
|
|
_PART_SUFFIX = ".part"
|
|
# A temp download older than this was left by a killed process, not a live one
|
|
# (each download has a 10 s timeout).
|
|
STALE_PART_SECONDS = 3600
|
|
|
|
|
|
def _save_atomically(image, local_path: Path) -> None:
|
|
"""Write ``image`` as JPEG so ``local_path`` only ever names a whole file.
|
|
|
|
The image goes to a ``.pm-*.part`` file in the same folder, which is
|
|
closed before ``os.replace`` puts it in place (Windows cannot replace an
|
|
open file); a failure removes the temp file. A reader (another import's
|
|
cache check) never sees a half-written image. The temp file is opened
|
|
like ``img.save`` opens a file, so the image keeps the umask's mode.
|
|
"""
|
|
import secrets
|
|
|
|
while True:
|
|
temp = local_path.parent / (
|
|
f"{_PART_PREFIX}{secrets.token_hex(8)}{_PART_SUFFIX}"
|
|
)
|
|
try:
|
|
handle = open(temp, "xb")
|
|
except FileExistsError:
|
|
continue
|
|
break
|
|
try:
|
|
with handle:
|
|
image.save(handle, "JPEG", quality=85)
|
|
os.replace(temp, local_path)
|
|
except BaseException:
|
|
try:
|
|
os.remove(temp)
|
|
except OSError:
|
|
pass
|
|
raise
|
|
|
|
|
|
def sweep_stale_downloads(cache_dir: Path) -> None:
|
|
"""Remove ``.pm-*.part`` files a killed download left in the image cache.
|
|
|
|
Only that exact pattern, only in ``cache_dir`` and its LoRA folders, and
|
|
only once older than ``STALE_PART_SECONDS``; a file that cannot be read
|
|
or removed is left for a later import.
|
|
"""
|
|
import time
|
|
|
|
cutoff = time.time() - STALE_PART_SECONDS
|
|
try:
|
|
folders = [cache_dir] + [p for p in cache_dir.iterdir() if p.is_dir()]
|
|
except OSError:
|
|
return
|
|
for folder in folders:
|
|
try:
|
|
candidates = list(folder.glob(f"{_PART_PREFIX}*{_PART_SUFFIX}"))
|
|
except OSError:
|
|
continue
|
|
for path in candidates:
|
|
try:
|
|
if path.is_file() and path.stat().st_mtime < cutoff:
|
|
os.remove(path)
|
|
except OSError:
|
|
logger.debug(f"Could not remove stale download {path}")
|
|
|
|
|
|
def _civitai_cache_plan(
|
|
metadata: Dict, metadata_path: Path, cache_dir: Path
|
|
) -> Tuple[Path, List[str], List[Tuple[str, Path]]]:
|
|
"""``(lora_cache, cached, tasks)`` for a LoRA's CivitAI example images.
|
|
|
|
``cached`` are the images already in the cache, ``tasks`` the
|
|
``(url, local_path)`` downloads still needed. Reads only; creates nothing.
|
|
"""
|
|
civitai = _get_civitai(metadata)
|
|
images = civitai.get("images", []) or []
|
|
|
|
file_name = metadata.get("file_name", "")
|
|
if not file_name:
|
|
file_name = metadata_path.name.replace(".metadata.json", "")
|
|
lora_cache = cache_dir / Path(file_name).stem
|
|
|
|
cached = []
|
|
tasks = [] # (url, local_path)
|
|
for img in images:
|
|
if not isinstance(img, dict):
|
|
continue
|
|
url = img.get("url", "")
|
|
if not isinstance(url, str) or not is_civitai_url(url):
|
|
continue
|
|
|
|
url_hash = hashlib.md5(url.encode(), usedforsecurity=False).hexdigest()[:12]
|
|
local_path = lora_cache / f"{url_hash}.jpg"
|
|
|
|
if local_path.exists():
|
|
cached.append(str(local_path.resolve()))
|
|
else:
|
|
tasks.append((url, local_path))
|
|
return lora_cache, cached, tasks
|
|
|
|
|
|
def planned_civitai_downloads(
|
|
metadata: Dict, metadata_path: Path, cache_dir: Path
|
|
) -> int:
|
|
"""How many example images an import would download (no request, no write)."""
|
|
return len(_civitai_cache_plan(metadata, metadata_path, cache_dir)[2])
|
|
|
|
|
|
def download_civitai_images(
|
|
metadata: Dict,
|
|
metadata_path: Path,
|
|
cache_dir: Path,
|
|
api_key: str = "",
|
|
stats: Optional[Dict[str, int]] = None,
|
|
) -> List[str]:
|
|
"""Download civitai example images to a local cache directory.
|
|
|
|
Uses thumbnail URLs (512px) instead of full-size originals, and
|
|
downloads in parallel (up to 8 concurrent) for speed.
|
|
|
|
Args:
|
|
api_key: CivitAI API key for authenticated downloads (NSFW content).
|
|
stats: When given, ``downloaded`` and ``download_errors`` are
|
|
increased by the downloads that succeeded and failed.
|
|
|
|
Returns:
|
|
List of absolute paths to downloaded image files.
|
|
"""
|
|
from concurrent.futures import ThreadPoolExecutor
|
|
|
|
lora_cache, cached, tasks = _civitai_cache_plan(metadata, metadata_path, cache_dir)
|
|
if not tasks:
|
|
return cached
|
|
lora_cache.mkdir(parents=True, exist_ok=True)
|
|
|
|
# Download in parallel
|
|
downloaded = []
|
|
with ThreadPoolExecutor(max_workers=8) as pool:
|
|
futures = [
|
|
pool.submit(_download_one, url, path, api_key) for url, path in tasks
|
|
]
|
|
for fut in futures:
|
|
result = fut.result()
|
|
if result:
|
|
downloaded.append(result)
|
|
|
|
if stats is not None:
|
|
stats["downloaded"] = stats.get("downloaded", 0) + len(downloaded)
|
|
stats["download_errors"] = (
|
|
stats.get("download_errors", 0) + len(tasks) - len(downloaded)
|
|
)
|
|
return cached + downloaded
|
|
|
|
|
|
def get_lora_image_cache_dir(create: bool = True) -> Path:
|
|
"""Get the directory used to cache downloaded LoRA example images.
|
|
|
|
``<data folder>/data/lora_images`` (``utils.library_location``): the node
|
|
folder for a library that was not moved, else ComfyUI's
|
|
``user/__promptmanager``. ``create=False`` only names it (a preview
|
|
writes nothing).
|
|
"""
|
|
try:
|
|
from ..utils import library_location
|
|
except ImportError:
|
|
from utils import library_location
|
|
|
|
ext_root = Path(__file__).resolve().parent.parent
|
|
cache = Path(
|
|
library_location.cache_dir("lora_images", extension_root=str(ext_root))
|
|
)
|
|
if create:
|
|
cache.mkdir(parents=True, exist_ok=True)
|
|
return cache
|
|
|
|
|
|
def get_example_images_dir(lora_manager_path: str) -> Optional[str]:
|
|
"""Find the LoraManager example_images directory."""
|
|
lm_path = Path(lora_manager_path)
|
|
|
|
# Direct subdirectory
|
|
candidate = lm_path / "example_images"
|
|
if candidate.is_dir():
|
|
return str(candidate.resolve())
|
|
|
|
# Search one level in user data dirs
|
|
for child in lm_path.iterdir():
|
|
if child.is_dir():
|
|
sub = child / "example_images"
|
|
if sub.is_dir():
|
|
return str(sub.resolve())
|
|
|
|
return None
|
|
|
|
|
|
# ── Trigger word cache & injection ───────────────────────────────────
|
|
|
|
_LORA_PATTERN = re.compile(r"<lora:([^:>]+):[^>]+>", re.IGNORECASE)
|
|
|
|
|
|
class TriggerWordCache:
|
|
"""Thread-safe cache mapping LoRA names to their trigger words.
|
|
|
|
Built lazily on first access, refreshable on demand.
|
|
"""
|
|
|
|
def __init__(self):
|
|
self._cache: Dict[str, List[str]] = {}
|
|
self._lock = threading.Lock()
|
|
self._loaded = False
|
|
|
|
def load(self, lora_manager_path: str) -> int:
|
|
"""Scan LoRA metadata files and build the trigger word mapping.
|
|
|
|
Returns:
|
|
Number of LoRAs with trigger words found.
|
|
"""
|
|
new_cache: Dict[str, List[str]] = {}
|
|
|
|
lora_dirs = find_lora_directories(lora_manager_path)
|
|
for lora_dir in lora_dirs:
|
|
dir_path = Path(lora_dir)
|
|
for meta_file in dir_path.rglob("*.metadata.json"):
|
|
metadata = read_lora_metadata(meta_file)
|
|
if not metadata:
|
|
continue
|
|
|
|
words = get_trigger_words_from_metadata(metadata)
|
|
if not words:
|
|
continue
|
|
|
|
# Key by filename stem (what appears in <lora:NAME:weight>)
|
|
file_name = metadata.get("file_name", "")
|
|
if file_name:
|
|
stem = Path(file_name).stem
|
|
new_cache[stem.lower()] = words
|
|
|
|
# Also key by the metadata file stem
|
|
meta_stem = meta_file.name.replace(".metadata.json", "")
|
|
if meta_stem.lower() not in new_cache:
|
|
new_cache[meta_stem.lower()] = words
|
|
|
|
with self._lock:
|
|
self._cache = new_cache
|
|
self._loaded = True
|
|
|
|
logger.info(
|
|
f"Trigger word cache loaded: {len(new_cache)} LoRAs with trigger words"
|
|
)
|
|
return len(new_cache)
|
|
|
|
def get_trigger_words(self, lora_name: str) -> List[str]:
|
|
"""Look up trigger words for a LoRA by name (case-insensitive)."""
|
|
with self._lock:
|
|
return self._cache.get(lora_name.lower(), [])
|
|
|
|
@property
|
|
def is_loaded(self) -> bool:
|
|
with self._lock:
|
|
return self._loaded
|
|
|
|
def clear(self):
|
|
with self._lock:
|
|
self._cache.clear()
|
|
self._loaded = False
|
|
|
|
|
|
# Module-level singleton
|
|
_trigger_cache = TriggerWordCache()
|
|
|
|
|
|
def get_trigger_cache() -> TriggerWordCache:
|
|
return _trigger_cache
|
|
|
|
|
|
def inject_trigger_words(text: str, cache: TriggerWordCache) -> Tuple[str, List[str]]:
|
|
"""Scan text for <lora:NAME:WEIGHT> tags and append trigger words.
|
|
|
|
Args:
|
|
text: The prompt text potentially containing lora tags.
|
|
cache: Populated TriggerWordCache instance.
|
|
|
|
Returns:
|
|
Tuple of (modified_text, list_of_injected_words).
|
|
If no trigger words found, returns the original text unchanged.
|
|
"""
|
|
if not cache.is_loaded:
|
|
return text, []
|
|
|
|
matches = _LORA_PATTERN.findall(text)
|
|
if not matches:
|
|
return text, []
|
|
|
|
all_words = []
|
|
for lora_name in matches:
|
|
words = cache.get_trigger_words(lora_name)
|
|
for w in words:
|
|
if w.lower() not in text.lower() and w not in all_words:
|
|
all_words.append(w)
|
|
|
|
if not all_words:
|
|
return text, []
|
|
|
|
injected = ", ".join(all_words)
|
|
return f"{text}, {injected}", all_words
|