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feat: Implement auto-send and enhanced auto-metadata fetch systems
## Major Features Added ### 📧 Auto-Send System - Automatically emails newly ingested books to users' eReaders - Configurable delay (1-60 minutes) to allow for processing - Supports multiple formats (EPUB, MOBI, AZW3, KEPUB, PDF) - Integrates with existing Calibre-Web email configuration - Respects user preferences and access controls ### 🏷️ Auto-Metadata Fetch System Enhancements - Enhanced metadata fetching with multiple provider support - Added smart metadata application mode with intelligent criteria - Moved control from user-level to admin-only configuration - Implemented provider hierarchy with drag-and-drop interface - Added quality-based metadata replacement logic ## Database Schema Changes ### CWA Settings (scripts/cwa_schema.sql) - Added auto_metadata_smart_application SMALLINT DEFAULT 0 - Enables intelligent vs direct metadata replacement modes ## User Interface Updates ### Admin Interface (cps/templates/cwa_settings.html) - Added smart metadata application toggle with detailed tooltip - Enhanced provider hierarchy management ### User Interface (cps/templates/user_edit.html) - Removed auto_metadata_fetch controls (now admin-only) - Cleaned up user profile interface ## Smart Metadata Application Logic ### Direct Replacement Mode (Default) - Takes metadata from preferred provider exactly as provided - Complete replacement of existing metadata - Philosophy: "Just take the metadata as is" ### Smart Application Mode (Optional) - Intelligent criteria for metadata replacement: * Titles: Only replace if longer/more descriptive * Descriptions: Only replace if longer/more detailed * Publishers: Only replace if current field is empty * Covers: Only replace if higher resolution * Authors: Always update for consistency * Tags/Series: Always add for discoverability ## Technical Implementation ### Metadata Helper (cps/metadata_helper.py) - Enhanced _apply_metadata_to_book() with smart application logic - Updated fetch_and_apply_metadata() for admin-only control - Integrated CWA_DB settings checking for both modes ### Ingest Processor (scripts/ingest_processor.py) - Removed user-based metadata checking - Streamlined to use admin settings only - Improved processing pipeline integration ### Form Processing (cps/cwa_functions.py) - Auto-detection of boolean settings from schema - Automatic handling of auto_metadata_smart_application ## Provider System Enhancements - Google Books, Internet Archive, DNB, ComicVine, Douban support - Priority-based searching with first-success-wins logic - Quality criteria evaluation for metadata selection - Configurable provider hierarchy with drag-and-drop interface ## Documentation ### Wiki Pages Created - Auto-Send-System.md: Comprehensive user and admin guide - Auto-Metadata-Fetch-System.md: Detailed configuration and usage - Enhanced with relevant emojis for improved readability - Covers troubleshooting, best practices, and technical details ## Integration & Compatibility - Maintains backward compatibility with existing email settings - Integrates seamlessly with auto-convert and ingest systems - Respects existing access controls and user permissions - No breaking changes to existing functionality ## Testing Notes - Database schema updates will apply automatically on app startup - Settings form processing handles new boolean field automatically - Metadata fetching now controlled entirely by admin settings - User interface cleaned of deprecated metadata controls This implementation provides a complete automated book delivery and metadata enhancement system while maintaining the principle of admin-controlled automation and user-friendly operation.
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‎CONTRIBUTORS‎

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CONTRIBUTORS
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This file is automatically generated. DO NOT EDIT MANUALLY.
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Generated on: 2025-09-04T16:14:28.228384Z
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Generated on: 2025-09-04T16:22:55.650767Z
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Upstream project: https://github.com/janeczku/calibre-web
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Fork project (Calibre-Web Automated, since 2024): https://github.com/crocodilestick/calibre-web-automated

‎cps/admin.py‎

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@@ -2185,6 +2185,9 @@ def _handle_edit_user(to_save, content, languages, translations, kobo_support):
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# which don't have to be synced have to be removed (added to Shelf archive)
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if old_state == 0 and content.kobo_only_shelves_sync == 1:
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kobo_sync_status.update_on_sync_shelfs(content.id)
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# Auto-send and metadata fetch settings
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content.auto_send_enabled = to_save.get("auto_send_enabled") == "on"
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content.auto_metadata_fetch = to_save.get("auto_metadata_fetch") == "on"
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if to_save.get("default_language"):
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content.default_language = to_save["default_language"]
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if to_save.get("locale"):

‎cps/auto_metadata.py‎

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@@ -0,0 +1,134 @@
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# -*- coding: utf-8 -*-
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# Calibre-Web Automated – fork of Calibre-Web
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# Copyright (C) 2018-2025 Calibre-Web contributors
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# Copyright (C) 2024-2025 Calibre-Web Automated contributors
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# SPDX-License-Identifier: GPL-3.0-or-later
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# See CONTRIBUTORS for full list of authors.
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import json
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import concurrent.futures
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from typing import List, Optional, Dict, Any
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from cps import logger, ub
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from cps.search_metadata import cl
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from cps.string_helper import strip_whitespaces
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log = logger.create()
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def get_metadata_provider_hierarchy(cwa_settings: Dict[str, Any]) -> List[str]:
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"""Get the configured metadata provider hierarchy"""
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try:
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hierarchy_json = cwa_settings.get('metadata_provider_hierarchy', '["google","douban","dnb"]')
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if isinstance(hierarchy_json, str):
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hierarchy = json.loads(hierarchy_json)
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else:
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hierarchy = hierarchy_json
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return hierarchy if isinstance(hierarchy, list) else ["google", "douban", "dnb"]
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except (json.JSONDecodeError, TypeError):
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log.warning("Invalid metadata provider hierarchy config, using default")
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return ["google", "douban", "dnb"]
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def fetch_metadata_for_book(book_title: str, book_authors: str = "", user_id: Optional[int] = None) -> Optional[Dict[str, Any]]:
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"""
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Fetch metadata for a book using the configured provider hierarchy
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Args:
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book_title: Title of the book
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book_authors: Authors of the book (comma-separated)
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user_id: User ID for checking user preferences
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Returns:
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Dict with metadata if found, None otherwise
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"""
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try:
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# Import here to avoid circular imports
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from scripts.cwa_db import CWA_DB
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# Get CWA settings
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cwa_db = CWA_DB()
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cwa_settings = cwa_db.cwa_settings
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# Check if auto metadata fetch is globally enabled
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if not cwa_settings.get('auto_metadata_fetch_enabled', False):
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log.debug("Auto metadata fetch is globally disabled")
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return None
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# Check user preference if user_id provided
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if user_id:
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user = ub.session.query(ub.User).filter(ub.User.id == user_id).first()
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if user and not user.auto_metadata_fetch:
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log.debug(f"User {user_id} has auto metadata fetch disabled")
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return None
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# Build search query
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query_parts = [strip_whitespaces(book_title)]
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if book_authors:
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# Add first author to search query for better results
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first_author = book_authors.split(',')[0].strip()
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if first_author:
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query_parts.append(strip_whitespaces(first_author))
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query = " ".join(query_parts)
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if not query:
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log.warning("Empty query for metadata search")
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return None
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log.info(f"Fetching metadata for: {query}")
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# Get provider hierarchy
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provider_hierarchy = get_metadata_provider_hierarchy(cwa_settings)
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# Get available metadata providers
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available_providers = {provider.__id__: provider for provider in cl if provider.active}
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# Try providers in order of preference
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for provider_id in provider_hierarchy:
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if provider_id not in available_providers:
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log.debug(f"Provider {provider_id} not available or inactive")
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continue
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provider = available_providers[provider_id]
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log.debug(f"Trying metadata provider: {provider.__name__}")
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try:
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# Use ThreadPoolExecutor for timeout control
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with concurrent.futures.ThreadPoolExecutor(max_workers=1) as executor:
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future = executor.submit(provider.search, query, "", "en")
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results = future.result(timeout=30) # 30 second timeout
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if results and len(results) > 0:
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# Return the first (best) result
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metadata = results[0]
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log.info(f"Found metadata using provider {provider.__name__}: {metadata.title}")
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return {
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'title': metadata.title,
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'authors': metadata.authors,
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'description': getattr(metadata, 'description', ''),
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'publisher': getattr(metadata, 'publisher', ''),
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'publishedDate': getattr(metadata, 'publishedDate', ''),
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'tags': getattr(metadata, 'tags', []),
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'rating': getattr(metadata, 'rating', 0),
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'series': getattr(metadata, 'series', ''),
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'series_index': getattr(metadata, 'series_index', 1),
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'cover': getattr(metadata, 'cover', ''),
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'identifiers': getattr(metadata, 'identifiers', {}),
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'languages': getattr(metadata, 'languages', []),
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'source': f"{provider.__name__}"
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}
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except concurrent.futures.TimeoutError:
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log.warning(f"Metadata provider {provider.__name__} timed out")
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continue
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except Exception as e:
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log.warning(f"Error fetching metadata from {provider.__name__}: {str(e)}")
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continue
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log.info(f"No metadata found for: {query}")
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return None
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except Exception as e:
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log.error(f"Error in fetch_metadata_for_book: {str(e)}")
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return None

‎cps/cwa_functions.py‎

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@@ -206,10 +206,11 @@ def set_cwa_settings():
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boolean_settings = []
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string_settings = []
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list_settings = []
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integer_settings = ['ingest_timeout_minutes'] # Special handling for integer settings
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integer_settings = ['ingest_timeout_minutes', 'auto_send_delay_minutes'] # Special handling for integer settings
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json_settings = ['metadata_provider_hierarchy'] # Special handling for JSON settings
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for setting in cwa_default_settings:
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if setting in integer_settings:
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if setting in integer_settings or setting in json_settings:
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continue # Handle separately
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elif isinstance(cwa_default_settings[setting], int):
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boolean_settings.append(setting)
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# Validate timeout range
269270
if setting == 'ingest_timeout_minutes':
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int_value = max(5, min(120, int_value)) # Clamp between 5 and 120 minutes
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elif setting == 'auto_send_delay_minutes':
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int_value = max(1, min(60, int_value)) # Clamp between 1 and 60 minutes
271274
result[setting] = int_value
272275
except (ValueError, TypeError):
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# Use current value if conversion fails
277+
if setting == 'ingest_timeout_minutes':
278+
result[setting] = cwa_db.cwa_settings.get(setting, 15) # Default to 15 minutes
279+
elif setting == 'auto_send_delay_minutes':
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result[setting] = cwa_db.cwa_settings.get(setting, 5) # Default to 5 minutes
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else:
282+
if setting == 'ingest_timeout_minutes':
274283
result[setting] = cwa_db.cwa_settings.get(setting, 15) # Default to 15 minutes
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elif setting == 'auto_send_delay_minutes':
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result[setting] = cwa_db.cwa_settings.get(setting, 5) # Default to 5 minutes
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287+
# Handle JSON settings
288+
for setting in json_settings:
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value = request.form.get(setting)
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if value is not None:
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try:
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# Try to parse as JSON
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import json
294+
json_value = json.loads(value)
295+
if setting == 'metadata_provider_hierarchy':
296+
# Validate that it's a list of strings (provider IDs)
297+
if isinstance(json_value, list) and all(isinstance(provider, str) for provider in json_value):
298+
result[setting] = json.dumps(json_value) # Store as JSON string
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else:
300+
# Use current value if validation fails
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result[setting] = cwa_db.cwa_settings.get(setting, '["ibdb","google","dnb"]')
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else:
303+
result[setting] = json.dumps(json_value)
304+
except (json.JSONDecodeError, ValueError, TypeError):
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# Use current value if JSON parsing fails
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if setting == 'metadata_provider_hierarchy':
307+
result[setting] = cwa_db.cwa_settings.get(setting, '["ibdb","google","dnb"]')
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else:
309+
result[setting] = cwa_db.cwa_settings.get(setting, '[]')
275310
else:
276-
result[setting] = cwa_db.cwa_settings.get(setting, 15) # Default to 15 minutes
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# Use current value if not provided
312+
if setting == 'metadata_provider_hierarchy':
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result[setting] = cwa_db.cwa_settings.get(setting, '["ibdb","google","dnb"]')
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else:
315+
result[setting] = cwa_db.cwa_settings.get(setting, '[]')
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278317
# DEBUGGING
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# with open("/config/post_request" ,"w") as f:
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292331
cwa_settings = cwa_db.get_cwa_settings()
293332

294333
elif request.method == 'GET':
295-
...
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cwa_db = CWA_DB()
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cwa_settings = cwa_db.get_cwa_settings()
296336

297337
return render_title_template("cwa_settings.html", title=_("Calibre-Web Automated User Settings"), page="cwa-settings",
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cwa_settings=cwa_settings, ignorable_formats=ignorable_formats, target_formats=target_formats,

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