Merge pull request #658 from willmiao/feature/global-license-refresh

Feature/global license refresh

locales/de.json

@@ -152,6 +152,13 @@
             "none": "Keine Beispielbild-Ordner mussten bereinigt werden",
             "partial": "Bereinigung abgeschlossen, {failures} Ordner übersprungen",
             "error": "Fehler beim Bereinigen der Beispielbild-Ordner: {message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/en.json

@@ -152,6 +152,13 @@
             "none": "No example image folders needed cleanup",
             "partial": "Cleanup completed with {failures} folder(s) skipped",
             "error": "Failed to clean example image folders: {message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/es.json

@@ -152,6 +152,13 @@
             "none": "No hay carpetas de imágenes de ejemplo que necesiten limpieza",
             "partial": "Limpieza completada con {failures} carpeta(s) omitidas",
             "error": "No se pudieron limpiar las carpetas de imágenes de ejemplo: {message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/fr.json

@@ -152,6 +152,13 @@
             "none": "Aucun dossier d'images d'exemple à nettoyer",
             "partial": "Nettoyage terminé avec {failures} dossier(s) ignoré(s)",
             "error": "Échec du nettoyage des dossiers d'images d'exemple : {message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/he.json

@@ -152,6 +152,13 @@
             "none": "אין תיקיות תמונות דוגמה שזקוקות לניקוי",
             "partial": "הניקוי הושלם עם דילוג על {failures} תיקיות",
             "error": "ניקוי תיקיות תמונות הדוגמה נכשל: {message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/ja.json

@@ -152,6 +152,13 @@
             "none": "クリーンアップが必要な例画像フォルダはありません",
             "partial": "クリーンアップが完了しましたが、{failures} 個のフォルダはスキップされました",
             "error": "例画像フォルダのクリーンアップに失敗しました：{message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/ko.json

@@ -152,6 +152,13 @@
             "none": "정리가 필요한 예시 이미지 폴더가 없습니다",
             "partial": "정리가 완료되었으나 {failures}개의 폴더가 건너뛰어졌습니다",
             "error": "예시 이미지 폴더 정리에 실패했습니다: {message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/ru.json

@@ -152,6 +152,13 @@
             "none": "Нет папок с примерами изображений, требующих очистки",
             "partial": "Очистка завершена, пропущено {failures} папок",
             "error": "Не удалось очистить папки с примерами изображений: {message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/zh-CN.json

@@ -152,6 +152,13 @@
             "none": "没有需要清理的示例图片文件夹",
             "partial": "清理完成，有 {failures} 个文件夹跳过",
             "error": "清理示例图片文件夹失败：{message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

locales/zh-TW.json

@@ -152,6 +152,13 @@
             "none": "沒有需要清理的範例圖片資料夾",
             "partial": "清理完成，有 {failures} 個資料夾略過",
             "error": "清理範例圖片資料夾失敗：{message}"
+        },
+        "fetchMissingLicenses": {
+            "label": "Refresh license metadata",
+            "loading": "Refreshing license metadata for {typePlural}...",
+            "success": "Updated license metadata for {count} {typePlural}",
+            "none": "All {typePlural} already have license metadata",
+            "error": "Failed to refresh license metadata for {typePlural}: {message}"
         }
     },
     "header": {

package-lock.json

@@ -114,6 +114,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=18"
       },
@@ -137,6 +138,7 @@
         }
       ],
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=18"
       }
@@ -1611,6 +1613,7 @@
       "integrity": "sha512-MyL55p3Ut3cXbeBEG7Hcv0mVM8pp8PBNWxRqchZnSfAiES1v1mRnMeFfaHWIPULpwsYfvO+ZmMZz5tGCnjzDUQ==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "cssstyle": "^4.0.1",
         "data-urls": "^5.0.0",

py/routes/handlers/model_handlers.py

@@ -6,7 +6,7 @@ import json
 import logging
 import os
 from dataclasses import dataclass
-from typing import Awaitable, Callable, Dict, Iterable, List, Mapping, Optional
+from typing import Any, Awaitable, Callable, Dict, Iterable, List, Mapping, Optional
 
 from aiohttp import web
 import jinja2
@@ -30,9 +30,17 @@ from ...services.use_cases import (
 from ...services.websocket_manager import WebSocketManager
 from ...services.websocket_progress_callback import WebSocketProgressCallback
 from ...services.errors import RateLimitError, ResourceNotFoundError
+from ...utils.civitai_utils import resolve_license_payload
 from ...utils.file_utils import calculate_sha256
 from ...utils.metadata_manager import MetadataManager
 
+LICENSE_FIELDS = (
+    "allowNoCredit",
+    "allowCommercialUse",
+    "allowDerivatives",
+    "allowDifferentLicense",
+)
+
 
 class ModelPageView:
     """Render the HTML view for model listings."""
@@ -1083,6 +1091,77 @@ class ModelUpdateHandler:
         self._metadata_provider_selector = metadata_provider_selector
         self._logger = logger
 
+    async def fetch_missing_civitai_license_data(self, request: web.Request) -> web.Response:
+        payload = await self._read_json(request)
+        target_model_ids = self._extract_target_model_ids(payload)
+
+        provider = await self._get_civitai_provider()
+        if provider is None:
+            return web.json_response(
+                {"success": False, "error": "Civitai provider not available"},
+                status=503,
+            )
+
+        try:
+            cache = await self._service.scanner.get_cached_data()
+        except Exception as exc:
+            self._logger.error("Failed to load cache for license refresh: %s", exc, exc_info=True)
+            cache = None
+
+        target_set = set(target_model_ids) if target_model_ids is not None else None
+        candidates = await self._collect_models_missing_license(cache, target_set)
+        if not candidates:
+            return web.json_response({"success": True, "updated": []})
+
+        model_ids = sorted(candidates.keys())
+        try:
+            license_map = await self._fetch_license_info(provider, model_ids)
+        except RateLimitError as exc:
+            return web.json_response(
+                {"success": False, "error": str(exc) or "Rate limited"},
+                status=429,
+            )
+        except Exception as exc:  # pragma: no cover - defensive log
+            self._logger.error("Failed to fetch license info: %s", exc, exc_info=True)
+            return web.json_response({"success": False, "error": str(exc)}, status=500)
+
+        updated: List[Dict[str, str]] = []
+        errors: List[Dict[str, str]] = []
+        for model_id in model_ids:
+            license_payload = license_map.get(model_id)
+            if not license_payload:
+                continue
+            resolved_payload = resolve_license_payload(license_payload)
+            for context in candidates.get(model_id, []):
+                metadata_path = context["file_path"]
+                metadata_payload = context["metadata"]
+                civitai_section = metadata_payload.setdefault("civitai", {})
+                model_section = civitai_section.get("model")
+                if not isinstance(model_section, Mapping):
+                    model_section = {}
+                model_section.update(resolved_payload)
+                civitai_section["model"] = model_section
+                metadata_payload["civitai"] = civitai_section
+                try:
+                    await MetadataManager.save_metadata(metadata_path, metadata_payload)
+                    updated.append({"modelId": model_id, "filePath": metadata_path})
+                except Exception as exc:
+                    self._logger.error(
+                        "Failed to save metadata for %s: %s",
+                        metadata_path,
+                        exc,
+                        exc_info=True,
+                    )
+                    errors.append({"filePath": metadata_path, "error": str(exc)})
+
+        response_payload = {"success": True, "updated": updated}
+        missing_model_ids = [mid for mid in model_ids if mid not in license_map]
+        if missing_model_ids:
+            response_payload["missingModelIds"] = missing_model_ids
+        if errors:
+            response_payload["errors"] = errors
+        return web.json_response(response_payload)
+
     async def refresh_model_updates(self, request: web.Request) -> web.Response:
         payload = await self._read_json(request)
         force_refresh = self._parse_bool(request.query.get("force")) or self._parse_bool(
@@ -1247,6 +1326,132 @@ class ModelUpdateHandler:
             self._logger.error("Failed to acquire civitai provider: %s", exc, exc_info=True)
             return None
 
+    async def _collect_models_missing_license(
+        self,
+        cache,
+        target_model_ids: Optional[set[int]],
+    ) -> Dict[int, List[Dict[str, Any]]]:
+        entries: Dict[int, List[Dict[str, Any]]] = {}
+        if cache is None:
+            return entries
+
+        raw_data = getattr(cache, "raw_data", None) or []
+        seen_paths: set[str] = set()
+        target_set = target_model_ids
+
+        for item in raw_data:
+            if not isinstance(item, Mapping):
+                continue
+            file_path = item.get("file_path")
+            if not isinstance(file_path, str) or not file_path or file_path in seen_paths:
+                continue
+            seen_paths.add(file_path)
+
+            civitai_entry = item.get("civitai")
+            if not isinstance(civitai_entry, Mapping):
+                continue
+
+            model_id = self._normalize_model_id(civitai_entry.get("modelId"))
+            if model_id is None:
+                continue
+            if target_set is not None and model_id not in target_set:
+                continue
+
+            try:
+                metadata_obj, should_skip = await MetadataManager.load_metadata(file_path)
+            except Exception as exc:
+                self._logger.debug("Failed to load metadata for %s: %s", file_path, exc)
+                continue
+            if metadata_obj is None or should_skip:
+                continue
+
+            metadata_payload = self._convert_metadata_to_dict(metadata_obj)
+            civitai_payload = metadata_payload.get("civitai")
+            if not isinstance(civitai_payload, Mapping):
+                civitai_payload = {}
+
+            model_payload = civitai_payload.get("model")
+            if not isinstance(model_payload, Mapping):
+                model_payload = {}
+
+            missing = [key for key in LICENSE_FIELDS if key not in model_payload]
+            if not missing:
+                continue
+
+            civitai_payload["model"] = model_payload
+            metadata_payload["civitai"] = civitai_payload
+            entries.setdefault(model_id, []).append(
+                {"file_path": file_path, "metadata": metadata_payload}
+            )
+
+        return entries
+
+    async def _fetch_license_info(
+        self,
+        provider,
+        model_ids: List[int],
+    ) -> Dict[int, Dict[str, Any]]:
+        if not model_ids:
+            return {}
+
+        BATCH_SIZE = 100
+        aggregated: Dict[int, Dict[str, Any]] = {}
+        for start in range(0, len(model_ids), BATCH_SIZE):
+            chunk = model_ids[start : start + BATCH_SIZE]
+            response = await provider.get_model_versions_bulk(chunk)
+            if not isinstance(response, Mapping):
+                continue
+
+            for raw_id, payload in response.items():
+                normalized_id = self._normalize_model_id(raw_id)
+                if normalized_id is None or not isinstance(payload, Mapping):
+                    continue
+                license_data: Dict[str, Any] = {}
+                for field in LICENSE_FIELDS:
+                    license_data[field] = payload.get(field)
+                aggregated[normalized_id] = license_data
+
+        return aggregated
+
+    def _extract_target_model_ids(self, payload: Dict) -> Optional[List[int]]:
+        if not isinstance(payload, Mapping):
+            return None
+
+        raw_ids = payload.get("modelIds")
+        if raw_ids is None:
+            raw_ids = payload.get("model_ids")
+
+        if not isinstance(raw_ids, (list, tuple, set)):
+            return None
+
+        normalized: List[int] = []
+        for candidate in raw_ids:
+            model_id = self._normalize_model_id(candidate)
+            if model_id is not None:
+                normalized.append(model_id)
+
+        if not normalized:
+            return None
+
+        return sorted(set(normalized))
+
+    @staticmethod
+    def _convert_metadata_to_dict(metadata: Any) -> Dict[str, Any]:
+        if metadata is None:
+            return {}
+
+        to_dict = getattr(metadata, "to_dict", None)
+        if callable(to_dict):
+            try:
+                return to_dict()
+            except Exception:
+                pass
+
+        if isinstance(metadata, Mapping):
+            return dict(metadata)
+
+        return {}
+
     async def _read_json(self, request: web.Request) -> Dict:
         if not request.can_read_body:
             return {}
@@ -1401,6 +1606,7 @@ class ModelHandlerSet:
             "get_model_description": self.query.get_model_description,
             "get_relative_paths": self.query.get_relative_paths,
             "refresh_model_updates": self.updates.refresh_model_updates,
+            "fetch_missing_civitai_license_data": self.updates.fetch_missing_civitai_license_data,
             "set_model_update_ignore": self.updates.set_model_update_ignore,
             "set_version_update_ignore": self.updates.set_version_update_ignore,
             "get_model_update_status": self.updates.get_model_update_status,

py/routes/model_route_registrar.py

@@ -56,6 +56,7 @@ COMMON_ROUTE_DEFINITIONS: tuple[RouteDefinition, ...] = (
     RouteDefinition("GET", "/api/lm/{prefix}/civitai/model/version/{modelVersionId}", "get_civitai_model_by_version"),
     RouteDefinition("GET", "/api/lm/{prefix}/civitai/model/hash/{hash}", "get_civitai_model_by_hash"),
     RouteDefinition("POST", "/api/lm/{prefix}/updates/refresh", "refresh_model_updates"),
+    RouteDefinition("POST", "/api/lm/{prefix}/updates/fetch-missing-license", "fetch_missing_civitai_license_data"),
     RouteDefinition("POST", "/api/lm/{prefix}/updates/ignore", "set_model_update_ignore"),
     RouteDefinition("POST", "/api/lm/{prefix}/updates/ignore-version", "set_version_update_ignore"),
     RouteDefinition("GET", "/api/lm/{prefix}/updates/status/{model_id}", "get_model_update_status"),
@@ -103,4 +104,3 @@ class ModelRouteRegistrar:
         add_method_name = self._METHOD_MAP[method.upper()]
         add_method = getattr(self._app.router, add_method_name)
         add_method(path, handler)
-

py/services/civitai_client.py

@@ -246,6 +246,10 @@ class CivitaiClient:
                     'modelVersions': item.get('modelVersions', []),
                     'type': item.get('type', ''),
                     'name': item.get('name', ''),
+                    'allowNoCredit': item.get('allowNoCredit'),
+                    'allowCommercialUse': item.get('allowCommercialUse'),
+                    'allowDerivatives': item.get('allowDerivatives'),
+                    'allowDifferentLicense': item.get('allowDifferentLicense'),
                 }
             return payload
         except RateLimitError:

py/utils/metadata_manager.py

@@ -22,7 +22,7 @@ class MetadataManager:
     """
     
     @staticmethod
-    async def load_metadata(file_path: str, model_class: Type[BaseModelMetadata] = LoraMetadata) -> Optional[BaseModelMetadata]:
+    async def load_metadata(file_path: str, model_class: Type[BaseModelMetadata] = LoraMetadata) -> tuple[Optional[BaseModelMetadata], bool]:
         """
         Load metadata safely.
         

static/js/api/apiConfig.js

@@ -77,6 +77,7 @@ export function getApiEndpoints(modelType) {
         relinkCivitai: `/api/lm/${modelType}/relink-civitai`,
         civitaiVersions: `/api/lm/${modelType}/civitai/versions`,
         refreshUpdates: `/api/lm/${modelType}/updates/refresh`,
+        fetchMissingLicenses: `/api/lm/${modelType}/updates/fetch-missing-license`,
         modelUpdateStatus: `/api/lm/${modelType}/updates/status`,
         modelUpdateVersions: `/api/lm/${modelType}/updates/versions`,
         ignoreModelUpdate: `/api/lm/${modelType}/updates/ignore`,

static/js/components/ContextMenu/GlobalContextMenu.js

@@ -1,6 +1,8 @@
 import { BaseContextMenu } from './BaseContextMenu.js';
 import { showToast } from '../../utils/uiHelpers.js';
+import { translate } from '../../utils/i18nHelpers.js';
 import { state } from '../../state/index.js';
+import { getCompleteApiConfig, getCurrentModelType } from '../../api/apiConfig.js';
 import { performModelUpdateCheck } from '../../utils/updateCheckHelpers.js';
 
 export class GlobalContextMenu extends BaseContextMenu {
@@ -8,6 +10,7 @@ export class GlobalContextMenu extends BaseContextMenu {
         super('globalContextMenu');
         this._cleanupInProgress = false;
         this._updateCheckInProgress = false;
+        this._licenseRefreshInProgress = false;
     }
 
     showMenu(x, y, origin = null) {
@@ -32,6 +35,11 @@ export class GlobalContextMenu extends BaseContextMenu {
                     console.error('Failed to check model updates:', error);
                 });
                 break;
+            case 'fetch-missing-licenses':
+                this.fetchMissingLicenses(menuItem).catch((error) => {
+                    console.error('Failed to refresh missing license metadata:', error);
+                });
+                break;
             default:
                 console.warn(`Unhandled global context menu action: ${action}`);
                 break;
@@ -133,4 +141,98 @@ export class GlobalContextMenu extends BaseContextMenu {
             }
         }
     }
+
+    async fetchMissingLicenses(menuItem) {
+        if (this._licenseRefreshInProgress) {
+            return;
+        }
+
+        const modelType = getCurrentModelType();
+        const apiConfig = getCompleteApiConfig(modelType);
+        const displayName = apiConfig?.config?.displayName ?? 'Model';
+        const typePlural = this._buildTypePlural(displayName);
+        const loadingMessage = translate(
+            'globalContextMenu.fetchMissingLicenses.loading',
+            { type: displayName, typePlural },
+            `Refreshing license metadata for ${typePlural}...`
+        );
+
+        const endpoint = apiConfig?.endpoints?.fetchMissingLicenses;
+        if (!endpoint) {
+            console.warn('Fetch missing license endpoint not configured for model type:', modelType);
+            showToast(
+                'globalContextMenu.fetchMissingLicenses.error',
+                { message: 'Endpoint unavailable', type: displayName, typePlural },
+                'warning'
+            );
+            return;
+        }
+
+        this._licenseRefreshInProgress = true;
+        menuItem?.classList?.add('disabled');
+        state.loadingManager?.showSimpleLoading?.(loadingMessage);
+
+        try {
+            const response = await fetch(endpoint, {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({}),
+            });
+
+            let payload = {};
+            try {
+                payload = await response.json();
+            } catch {
+                payload = {};
+            }
+
+            if (!response.ok || payload.success !== true) {
+                const errorMessage = payload?.error || response.statusText || 'Unknown error';
+                throw new Error(errorMessage);
+            }
+
+            const updated = Array.isArray(payload.updated) ? payload.updated : [];
+            if (updated.length > 0) {
+                showToast(
+                    'globalContextMenu.fetchMissingLicenses.success',
+                    { count: updated.length, type: displayName, typePlural },
+                    'success'
+                );
+            } else {
+                showToast(
+                    'globalContextMenu.fetchMissingLicenses.none',
+                    { type: displayName, typePlural },
+                    'info'
+                );
+            }
+        } catch (error) {
+            console.error('Failed to refresh missing license metadata:', error);
+            showToast(
+                'globalContextMenu.fetchMissingLicenses.error',
+                { message: error?.message ?? 'Unknown error', type: displayName, typePlural },
+                'error'
+            );
+        } finally {
+            state.loadingManager?.hide?.();
+            if (typeof state.loadingManager?.restoreProgressBar === 'function') {
+                state.loadingManager.restoreProgressBar();
+            }
+
+            this._licenseRefreshInProgress = false;
+            menuItem?.classList?.remove('disabled');
+        }
+    }
+
+    _buildTypePlural(displayName) {
+        if (!displayName) {
+            return 'models';
+        }
+
+        const lower = displayName.toLowerCase();
+        if (lower.endsWith('s')) {
+            return displayName;
+        }
+
+        return `${displayName}s`;
+    }
 }

templates/components/context_menu.html

@@ -93,6 +93,9 @@
     <div class="context-menu-item" data-action="check-model-updates">
         <i class="fas fa-sync-alt"></i> <span>{{ t('globalContextMenu.checkModelUpdates.label') }}</span>
     </div>
+    <div class="context-menu-item" data-action="fetch-missing-licenses">
+        <i class="fas fa-shield-alt"></i> <span>{{ t('globalContextMenu.fetchMissingLicenses.label') }}</span>
+    </div>
     <div class="context-menu-item" data-action="cleanup-example-images-folders">
         <i class="fas fa-trash-restore"></i> <span>{{ t('globalContextMenu.cleanupExampleImages.label') }}</span>
     </div>

tests/frontend/components/contextMenu.interactions.test.js

@@ -44,7 +44,10 @@ const refreshSingleModelMetadataMock = vi.fn();
 const resetAndReloadMock = vi.fn();
 const getCompleteApiConfigMock = vi.fn(() => ({
   config: { displayName: 'LoRA' },
-  endpoints: { refreshUpdates: '/api/lm/loras/updates/refresh' },
+  endpoints: {
+    refreshUpdates: '/api/lm/loras/updates/refresh',
+    fetchMissingLicenses: '/api/lm/loras/updates/fetch-missing-license',
+  },
 }));
 const getCurrentModelTypeMock = vi.fn(() => 'loras');
 
@@ -150,7 +153,10 @@ describe('Interaction-level regression coverage', () => {
     resetAndReloadMock.mockResolvedValue(undefined);
     getCompleteApiConfigMock.mockReturnValue({
       config: { displayName: 'LoRA' },
-      endpoints: { refreshUpdates: '/api/lm/loras/updates/refresh' },
+      endpoints: {
+        refreshUpdates: '/api/lm/loras/updates/refresh',
+        fetchMissingLicenses: '/api/lm/loras/updates/fetch-missing-license',
+      },
     });
     getCurrentModelTypeMock.mockReturnValue('loras');
     translateMock.mockImplementation((key, params, fallback) => (typeof fallback === 'string' ? fallback : key));
@@ -322,8 +328,9 @@ describe('Interaction-level regression coverage', () => {
     document.body.innerHTML = `
       <div id="globalContextMenu" class="context-menu">
         <div class="context-menu-item" data-action="download-example-images"></div>
-        <div class="context-menu-item" data-action="cleanup-example-images-folders"></div>
         <div class="context-menu-item" data-action="check-model-updates"></div>
+        <div class="context-menu-item" data-action="fetch-missing-licenses"></div>
+        <div class="context-menu-item" data-action="cleanup-example-images-folders"></div>
       </div>
     `;
 
@@ -354,6 +361,10 @@ describe('Interaction-level regression coverage', () => {
       .mockResolvedValueOnce({
         ok: true,
         json: async () => ({ success: true, records: [{ id: 1 }] }),
+      })
+      .mockResolvedValueOnce({
+        ok: true,
+        json: async () => ({ success: true, updated: [{ modelId: 42 }] }),
       });
 
     menu.showMenu(240, 320);
@@ -379,7 +390,7 @@ describe('Interaction-level regression coverage', () => {
 
     await flushAsyncTasks();
 
-    expect(global.fetch).toHaveBeenLastCalledWith('/api/lm/loras/updates/refresh', {
+    expect(global.fetch).toHaveBeenNthCalledWith(2, '/api/lm/loras/updates/refresh', {
       method: 'POST',
       headers: { 'Content-Type': 'application/json' },
       body: JSON.stringify({ force: false }),
@@ -398,5 +409,28 @@ describe('Interaction-level regression coverage', () => {
     expect(loadingManagerStub.hide).toHaveBeenCalled();
     expect(resetAndReloadMock).toHaveBeenCalledWith(false);
     expect(checkUpdatesItem.classList.contains('disabled')).toBe(false);
+
+    menu.showMenu(480, 520);
+    const fetchMissingItem = document.querySelector('[data-action="fetch-missing-licenses"]');
+    fetchMissingItem.dispatchEvent(new Event('click', { bubbles: true }));
+    expect(fetchMissingItem.classList.contains('disabled')).toBe(true);
+
+    const fetchMissingResponse = await global.fetch.mock.results[2].value;
+    await fetchMissingResponse.json();
+    await flushAsyncTasks();
+
+    expect(global.fetch).toHaveBeenNthCalledWith(3, '/api/lm/loras/updates/fetch-missing-license', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({}),
+    });
+
+    expect(showToastMock).toHaveBeenCalledWith(
+      'globalContextMenu.fetchMissingLicenses.success',
+      { count: 1, type: 'LoRA', typePlural: 'LoRAs' },
+      'success'
+    );
+    expect(loadingManagerStub.showSimpleLoading).toHaveBeenNthCalledWith(2, 'Refreshing license metadata for LoRAs...');
+    expect(fetchMissingItem.classList.contains('disabled')).toBe(false);
   });
 });

tests/routes/test_model_update_handler.py

@@ -1,3 +1,4 @@
+import copy
 import json
 import logging
 from types import SimpleNamespace
@@ -6,6 +7,7 @@ import pytest
 
 from py.config import config
 from py.routes.handlers.model_handlers import ModelUpdateHandler
+from py.utils.metadata_manager import MetadataManager
 from py.services.model_update_service import ModelUpdateRecord, ModelVersionRecord
 
 
@@ -264,3 +266,171 @@ async def test_refresh_model_updates_accepts_snake_case_ids():
 
     call = update_service.calls[0]
     assert call["target_model_ids"] == [3, 4]
+
+
+@pytest.mark.asyncio
+async def test_fetch_missing_license_data_updates_metadata(monkeypatch):
+    cache = SimpleNamespace(
+        raw_data=[
+            {"file_path": "/tmp/model1.safetensors", "civitai": {"modelId": 10}},
+            {"file_path": "/tmp/model2.safetensors", "civitai": {"modelId": 10}},
+            {"file_path": "/tmp/model3.safetensors", "civitai": {"modelId": 20}},
+        ],
+        version_index={},
+    )
+
+    metadata_store = {
+        "/tmp/model1.safetensors": {"civitai": {"model": {}}},
+        "/tmp/model2.safetensors": {"civitai": {"model": {}}},
+        "/tmp/model3.safetensors": {"civitai": {"model": {}}},
+    }
+
+    async def fake_load(path: str):
+        data = metadata_store.get(path)
+        if data is None:
+            return None, False
+        return SimpleNamespace(to_dict=lambda: copy.deepcopy(data)), False
+
+    saved: list[tuple[str, dict]] = []
+
+    async def fake_save(path: str, metadata: dict):
+        saved.append((path, copy.deepcopy(metadata)))
+        return True
+
+    monkeypatch.setattr(MetadataManager, "load_metadata", staticmethod(fake_load))
+    monkeypatch.setattr(MetadataManager, "save_metadata", staticmethod(fake_save))
+
+    provider_calls: list[list[int]] = []
+
+    async def fake_bulk(model_ids):
+        provider_calls.append(list(model_ids))
+        return {
+            10: {
+                "allowNoCredit": True,
+                "allowCommercialUse": ["Sell"],
+                "allowDerivatives": True,
+                "allowDifferentLicense": True,
+            },
+            20: {
+                "allowNoCredit": False,
+                "allowCommercialUse": ["Image"],
+                "allowDerivatives": False,
+                "allowDifferentLicense": False,
+            },
+        }
+
+    provider = SimpleNamespace()
+    provider.get_model_versions_bulk = fake_bulk
+
+    async def metadata_selector(name):
+        assert name == "civitai_api"
+        return provider
+
+    handler = ModelUpdateHandler(
+        service=DummyService(cache),
+        update_service=SimpleNamespace(),
+        metadata_provider_selector=metadata_selector,
+        logger=logging.getLogger(__name__),
+    )
+
+    class DummyRequest:
+        can_read_body = True
+        query = {}
+
+        async def json(self):
+            return {}
+
+    response = await handler.fetch_missing_civitai_license_data(DummyRequest())
+    assert response.status == 200
+
+    payload = json.loads(response.text)
+    assert payload["success"] is True
+    assert len(payload["updated"]) == 3
+    assert provider_calls == [[10, 20]]
+    assert len(saved) == 3
+
+    first_metadata = saved[0][1]
+    assert first_metadata["civitai"]["model"]["allowNoCredit"] is True
+    assert first_metadata["civitai"]["model"]["allowCommercialUse"] == ["Sell"]
+    assert "missingModelIds" not in payload
+    assert "errors" not in payload
+
+
+@pytest.mark.asyncio
+async def test_fetch_missing_license_data_filters_model_ids(monkeypatch):
+    cache = SimpleNamespace(
+        raw_data=[
+            {"file_path": "/tmp/model1.safetensors", "civitai": {"modelId": 10}},
+            {"file_path": "/tmp/model2.safetensors", "civitai": {"modelId": 20}},
+        ],
+        version_index={},
+    )
+
+    metadata_store = {
+        "/tmp/model1.safetensors": {"civitai": {"model": {}}},
+        "/tmp/model2.safetensors": {"civitai": {"model": {}}},
+    }
+
+    async def fake_load(path: str):
+        data = metadata_store.get(path)
+        if data is None:
+            return None, False
+        return SimpleNamespace(to_dict=lambda: copy.deepcopy(data)), False
+
+    saved: list[tuple[str, dict]] = []
+
+    async def fake_save(path: str, metadata: dict):
+        saved.append((path, copy.deepcopy(metadata)))
+        return True
+
+    monkeypatch.setattr(MetadataManager, "load_metadata", staticmethod(fake_load))
+    monkeypatch.setattr(MetadataManager, "save_metadata", staticmethod(fake_save))
+
+    provider_calls: list[list[int]] = []
+
+    async def fake_bulk(model_ids):
+        provider_calls.append(list(model_ids))
+        return {
+            10: {
+                "allowNoCredit": True,
+                "allowCommercialUse": ["Sell"],
+                "allowDerivatives": True,
+                "allowDifferentLicense": True,
+            },
+            20: {
+                "allowNoCredit": False,
+                "allowCommercialUse": ["Image"],
+                "allowDerivatives": False,
+                "allowDifferentLicense": False,
+            },
+        }
+
+    provider = SimpleNamespace()
+    provider.get_model_versions_bulk = fake_bulk
+
+    async def metadata_selector(name):
+        assert name == "civitai_api"
+        return provider
+
+    handler = ModelUpdateHandler(
+        service=DummyService(cache),
+        update_service=SimpleNamespace(),
+        metadata_provider_selector=metadata_selector,
+        logger=logging.getLogger(__name__),
+    )
+
+    class DummyRequest:
+        can_read_body = True
+        query = {}
+
+        async def json(self):
+            return {"modelIds": [20]}
+
+    response = await handler.fetch_missing_civitai_license_data(DummyRequest())
+    assert response.status == 200
+
+    payload = json.loads(response.text)
+    assert payload["success"] is True
+    assert len(payload["updated"]) == 1
+    assert provider_calls == [[20]]
+    assert len(saved) == 1

tests/services/test_civitai_client.py

@@ -204,8 +204,26 @@ async def test_get_model_versions_bulk_success(monkeypatch, downloader):
         assert kwargs.get("params") == {"ids": "1,2"}
         return True, {
             "items": [
-                {"id": 1, "modelVersions": [{"id": 11}], "type": "LORA", "name": "One"},
-                {"id": 2, "modelVersions": [], "type": "Checkpoint", "name": "Two"},
+                {
+                    "id": 1,
+                    "modelVersions": [{"id": 11}],
+                    "type": "LORA",
+                    "name": "One",
+                    "allowNoCredit": True,
+                    "allowCommercialUse": ["Sell"],
+                    "allowDerivatives": True,
+                    "allowDifferentLicense": True,
+                },
+                {
+                    "id": 2,
+                    "modelVersions": [],
+                    "type": "Checkpoint",
+                    "name": "Two",
+                    "allowNoCredit": False,
+                    "allowCommercialUse": ["Image"],
+                    "allowDerivatives": False,
+                    "allowDifferentLicense": False,
+                },
             ]
         }
 
@@ -216,8 +234,24 @@ async def test_get_model_versions_bulk_success(monkeypatch, downloader):
     result = await client.get_model_versions_bulk([1, "2", 2])
 
     assert result == {
-        1: {"modelVersions": [{"id": 11}], "type": "LORA", "name": "One"},
-        2: {"modelVersions": [], "type": "Checkpoint", "name": "Two"},
+        1: {
+            "modelVersions": [{"id": 11}],
+            "type": "LORA",
+            "name": "One",
+            "allowNoCredit": True,
+            "allowCommercialUse": ["Sell"],
+            "allowDerivatives": True,
+            "allowDifferentLicense": True,
+        },
+        2: {
+            "modelVersions": [],
+            "type": "Checkpoint",
+            "name": "Two",
+            "allowNoCredit": False,
+            "allowCommercialUse": ["Image"],
+            "allowDerivatives": False,
+            "allowDifferentLicense": False,
+        },
     }