Files
Azornes-Comfyui-Model-Resolver/core/linker.py
T
Dariusz L 3ab6a9cc55 Enhance Model Linker routes, downloader, and linker
Refactor and harden the Model Linker extension: normalize string quoting/formatting and improve logging and error responses across API routes. Make route registration more robust to missing PromptServer and dependencies. Add/expand download-related features: safer request parsing (including is_urn handling), CivitAI URN support & direct download URL resolution, popular/model-list/HuggingFace/CivitAI search fallbacks, improved header handling for HF/CivitAI, and better category/directory mapping. Improve downloader reliability and UX: folder_paths fallback, pre-initialize download progress entries, smoother speed calculation and CLI logging, cancellation cleanup on Windows, stronger exception handling, and consistent JSON responses from endpoints.
2026-04-17 21:23:25 +02:00

379 lines
14 KiB
Python

"""
Core Linker Module
Integrates all components to provide high-level API for model linking.
"""
import os
import re
import json
import logging
from typing import Dict, Any, List, Optional, Tuple
from urllib.parse import unquote
from .scanner import get_model_files
from .workflow_analyzer import analyze_workflow_models, identify_missing_models
from .matcher import find_matches
from .workflow_updater import update_workflow_nodes
from .sources.civitai import resolve_urn
logger = logging.getLogger(__name__)
# Regex patterns for URL extraction (matches HuggingFace and CivitAI URLs)
URL_PATTERN = re.compile(r'(https?://(?:huggingface\.co|civitai\.com)[^\s"\'<>\)\\]+)')
# Model file extensions to look for
MODEL_EXTENSIONS = (".safetensors", ".ckpt", ".pt", ".pth", ".bin", ".onnx")
def extract_workflow_urls(workflow_json: Dict[str, Any]) -> Dict[str, Dict[str, Any]]:
"""
Extract model URLs from workflow JSON.
Sources:
1. node.properties.models array - contains {name, url, directory}
2. Regex extraction from workflow JSON string - finds HuggingFace/CivitAI URLs
Args:
workflow_json: Complete workflow JSON dictionary
Returns:
Dict mapping model filename -> {url, directory, source}
"""
url_map = {}
# Convert to string for regex search
workflow_str = json.dumps(workflow_json)
# Collect all nodes including from subgraphs
all_nodes = list(workflow_json.get("nodes", []))
definitions = workflow_json.get("definitions", {})
subgraphs = definitions.get("subgraphs", [])
for subgraph in subgraphs:
subgraph_nodes = subgraph.get("nodes", [])
all_nodes.extend(subgraph_nodes)
# 1. Extract from node.properties.models (authoritative source)
for node in all_nodes:
node_type = node.get("type", "")
properties = node.get("properties", {})
models_list = properties.get("models", [])
for model_info in models_list:
if isinstance(model_info, dict):
name = model_info.get("name", "")
url = model_info.get("url", "")
directory = model_info.get("directory", "")
if name and name not in url_map:
url_map[name] = {
"url": url,
"directory": directory,
"node_type": node_type,
"source": "node_properties",
}
# 2. Extract URLs via regex from workflow JSON
urls_found = URL_PATTERN.findall(workflow_str)
# Clean URLs (remove trailing characters that may have been captured)
cleaned_urls = []
for url in urls_found:
url = url.split(")")[0].replace("\\n", "").replace("\n", "").strip()
if url:
cleaned_urls.append(url)
# 3. Extract model filenames via regex
model_pattern = re.compile(
r"([\w\-\.%]+\.(?:safetensors|ckpt|pt|pth|bin|onnx))", re.IGNORECASE
)
model_files_raw = model_pattern.findall(workflow_str)
# Clean and decode filenames
model_files = set()
model_name_map = {} # decoded -> original
for model in model_files_raw:
cleaned = model.strip()
if cleaned and cleaned[0].isalnum():
try:
decoded = unquote(cleaned)
except Exception:
decoded = cleaned
model_files.add(decoded)
model_name_map[decoded] = cleaned
# 4. Match URLs to model filenames
for model in model_files:
# Skip if already found in node.properties.models
if model in url_map and url_map[model].get("url"):
continue
original_name = model_name_map.get(model, model)
for url in cleaned_urls:
# Check decoded name in URL
if model in url:
if model not in url_map:
url_map[model] = {"url": url, "directory": "", "source": "regex"}
elif not url_map[model].get("url"):
url_map[model]["url"] = url
url_map[model]["source"] = "regex"
break
# Check original (possibly URL-encoded) name in URL
if original_name in url:
if model not in url_map:
url_map[model] = {"url": url, "directory": "", "source": "regex"}
elif not url_map[model].get("url"):
url_map[model]["url"] = url
url_map[model]["source"] = "regex"
break
# Check without extension
model_base = os.path.splitext(model)[0]
if model_base in url or unquote(model_base) in url:
if model not in url_map:
url_map[model] = {"url": url, "directory": "", "source": "regex"}
elif not url_map[model].get("url"):
url_map[model]["url"] = url
url_map[model]["source"] = "regex"
break
return url_map
def parse_huggingface_url(url: str) -> Tuple[Optional[str], Optional[str]]:
"""
Extract HuggingFace repo and path from URL.
Args:
url: HuggingFace URL
Returns:
Tuple of (repo_id, file_path) or (None, None) if not valid
"""
if not url or "huggingface.co" not in url:
return None, None
# Pattern: https://huggingface.co/user/repo/resolve/main/path/to/file.safetensors
match = re.match(
r"https?://huggingface\.co/([^/]+/[^/]+)/(?:resolve|blob)/[^/]+/(.+)", url
)
if match:
return match.group(1), match.group(2)
return None, None
def analyze_and_find_matches(
workflow_json: Dict[str, Any],
similarity_threshold: float = 0.0,
max_matches_per_model: int = 10,
) -> Dict[str, Any]:
"""
Main entry point: analyze workflow and find matches for missing models.
Args:
workflow_json: Complete workflow JSON dictionary
similarity_threshold: Minimum similarity score (0.0 to 1.0) for matches
max_matches_per_model: Maximum number of matches to return per missing model
Returns:
Dictionary with analysis results:
{
'missing_models': [
{
'node_id': node ID,
'node_type': node type,
'widget_index': widget index,
'original_path': original path from workflow,
'category': model category,
'workflow_url': URL from workflow if found,
'workflow_directory': directory from workflow if found,
'matches': [
{
'model': model dict from scanner,
'filename': model filename,
'similarity': similarity score (0.0-1.0),
'confidence': confidence percentage (0-100)
},
...
]
},
...
],
'total_missing': count of missing models,
'total_models_analyzed': count of all models in workflow
}
"""
# Extract URLs from workflow (node.properties.models + regex)
workflow_urls = extract_workflow_urls(workflow_json)
logger.debug(f"Extracted {len(workflow_urls)} URLs from workflow")
# Analyze workflow to find all model references
all_model_refs = analyze_workflow_models(workflow_json)
# Get available models
available_models = get_model_files()
# Identify missing models
missing_models = identify_missing_models(all_model_refs, available_models)
# Enrich missing models with workflow URLs
for missing in missing_models:
original_path = missing.get("original_path", "")
filename = os.path.basename(original_path)
if filename in workflow_urls:
url_info = workflow_urls[filename]
missing["workflow_url"] = url_info.get("url", "")
missing["workflow_directory"] = url_info.get("directory", "")
missing["url_source"] = url_info.get("source", "")
# Handle URNs: fetch expected filename from CivitAI
for missing in missing_models:
if missing.get("is_urn"):
urn = missing["urn"]
model_info = resolve_urn(urn["model_id"], urn["version_id"])
if model_info:
missing["civitai_info"] = {
"model_name": model_info.get("model_name"),
"version_name": model_info.get("version_name"),
}
if model_info:
missing["civitai_info"] = model_info
missing["expected_filename"] = model_info["expected_filename"]
logger.debug(
f"URN {missing['original_path']} → {missing['expected_filename']}"
)
# Add URN type to missing model for search functionality
if "urn" in missing:
missing["urn_type"] = missing["urn"].get("type", "")
# Find matches for each missing model
missing_with_matches = []
for missing in missing_models:
target_for_matching = missing.get("original_path", "")
# For URNs, prefer expected_filename for matching
if missing.get("is_urn") and missing.get("expected_filename"):
target_for_matching = missing["expected_filename"]
# Filter available models by category if known
category = missing.get("category")
if not category or category == "unknown":
from .workflow_analyzer import NODE_TYPE_TO_CATEGORY_HINTS
node_type = missing.get("node_type", "")
category = NODE_TYPE_TO_CATEGORY_HINTS.get(node_type, "unknown")
candidates = available_models
if category and category != "unknown":
candidates = [m for m in available_models if m.get("category") == category]
candidates.extend(
[m for m in available_models if m.get("category") != category]
)
# Find matches
matches = find_matches(
target_for_matching,
candidates,
threshold=similarity_threshold,
max_results=max_matches_per_model,
)
# Deduplicate matches by absolute path
seen_absolute_paths = {}
deduplicated_matches = []
for match in matches:
model_dict = match["model"]
absolute_path = model_dict.get("path", "")
if absolute_path:
absolute_path = os.path.normpath(absolute_path)
if absolute_path not in seen_absolute_paths:
seen_absolute_paths[absolute_path] = match
deduplicated_matches.append(match)
else:
existing_match = seen_absolute_paths[absolute_path]
if match["confidence"] > existing_match["confidence"]:
idx = deduplicated_matches.index(existing_match)
deduplicated_matches[idx] = match
seen_absolute_paths[absolute_path] = match
missing_with_matches.append({**missing, "matches": deduplicated_matches})
return {
"missing_models": missing_with_matches,
"total_missing": len(missing_with_matches),
"total_models_analyzed": len(all_model_refs),
}
def apply_resolution(
workflow_json: Dict[str, Any], resolutions: List[Dict[str, Any]]
) -> Dict[str, Any]:
"""
Apply model resolutions to workflow.
Args:
workflow_json: Workflow JSON dictionary (will be modified)
resolutions: List of resolution dictionaries:
{
'node_id': node ID,
'widget_index': widget index,
'resolved_path': absolute path to resolved model,
'category': model category (optional),
'resolved_model': model dict from scanner (optional)
}
Returns:
Updated workflow JSON dictionary
"""
# Prepare mappings for workflow_updater
mappings = []
for resolution in resolutions:
mapping = {
"node_id": resolution.get("node_id"),
"widget_index": resolution.get("widget_index"),
"resolved_path": resolution.get("resolved_path"),
"category": resolution.get("category"),
"resolved_model": resolution.get("resolved_model"),
"subgraph_id": resolution.get(
"subgraph_id"
), # Include subgraph_id for subgraph nodes
"is_top_level": resolution.get(
"is_top_level"
), # True for top-level nodes, False for nodes in subgraph definitions
}
# If resolved_model provided, extract path if needed
if "resolved_model" in resolution and resolution["resolved_model"]:
resolved_model = resolution["resolved_model"]
if "path" in resolved_model and not mapping.get("resolved_path"):
mapping["resolved_path"] = resolved_model["path"]
if "base_directory" in resolved_model:
mapping["base_directory"] = resolved_model["base_directory"]
mappings.append(mapping)
# Update workflow
updated_workflow = update_workflow_nodes(workflow_json, mappings)
return updated_workflow
def get_resolution_summary(workflow_json: Dict[str, Any]) -> Dict[str, Any]:
"""
Get summary of missing models and matches without applying resolutions.
This is a convenience method that calls analyze_and_find_matches with defaults.
Args:
workflow_json: Complete workflow JSON dictionary
Returns:
Same format as analyze_and_find_matches
"""
return analyze_and_find_matches(workflow_json)