import os import time import requests import re import threading import queue import hashlib import http.client import traceback from concurrent.futures import ThreadPoolExecutor, Future, CancelledError, as_completed import html # Import the html module for unescaping from PyQt5.QtCore import QObject, pyqtSignal, QThread, QMutex, QMutexLocker from urllib.parse import urlparse try: from PIL import Image except ImportError: print("ERROR: Pillow library not found. Please install it: pip install Pillow") Image = None from io import BytesIO fastapi_app = None # Placeholder, not used in this script KNOWN_NAMES = [] # Global list, populated by main.py IMAGE_EXTENSIONS = { '.jpg', '.jpeg', '.png', '.gif', '.bmp', '.tiff', '.tif', '.webp', '.heic', '.heif', '.svg', '.ico', '.jfif', '.pjpeg', '.pjp', '.avif' } VIDEO_EXTENSIONS = { '.mp4', '.mov', '.mkv', '.webm', '.avi', '.wmv', '.flv', '.mpeg', '.mpg', '.m4v', '.3gp', '.ogv', '.ts', '.vob' } def is_title_match_for_character(post_title, character_name_filter): """Checks if a post title contains a specific character name (case-insensitive, whole word).""" if not post_title or not character_name_filter: return False # Ensure character_name_filter is treated as a whole word, avoid partial matches within larger words. # Regex: \b matches word boundary. re.escape handles special characters in filter. pattern = r"(?i)\b" + re.escape(character_name_filter) + r"\b" return bool(re.search(pattern, post_title)) def is_filename_match_for_character(filename, character_name_filter): """Checks if a filename contains a specific character name (case-insensitive, substring).""" if not filename or not character_name_filter: return False # For filenames, substring matching is often more practical. return character_name_filter.lower() in filename.lower() def clean_folder_name(name): """Cleans a string to be suitable for a folder name.""" if not isinstance(name, str): name = str(name) # Remove characters that are generally problematic in folder names across OS cleaned = re.sub(r'[^\w\s\-\_\.\(\)]', '', name) # Allow letters, numbers, whitespace, hyphens, underscores, periods, parentheses cleaned = cleaned.strip() # Remove leading/trailing whitespace # Replace sequences of whitespace with a single underscore cleaned = re.sub(r'\s+', '_', cleaned) return cleaned if cleaned else "untitled_folder" def clean_filename(name): """Cleans a string to be suitable for a file name.""" if not isinstance(name, str): name = str(name) # Remove characters that are generally problematic in file names across OS cleaned = re.sub(r'[^\w\s\-\_\.\(\)]', '', name) # Allow letters, numbers, whitespace, hyphens, underscores, periods, parentheses cleaned = cleaned.strip() # Remove leading/trailing whitespace # Replace sequences of whitespace with a single underscore cleaned = re.sub(r'\s+', '_', cleaned) return cleaned if cleaned else "untitled_file" def extract_folder_name_from_title(title, unwanted_keywords): """Extracts a potential folder name from a title, avoiding unwanted keywords.""" if not title: return 'Uncategorized' title_lower = title.lower() # Try to find a meaningful token not in unwanted_keywords tokens = re.findall(r'\b[\w\-]+\b', title_lower) # Find words for token in tokens: clean_token = clean_folder_name(token) # Clean the token itself if clean_token and clean_token.lower() not in unwanted_keywords: # Check against lowercased unwanted keywords return clean_token # Fallback to cleaned full title if no suitable token found cleaned_full_title = clean_folder_name(title) return cleaned_full_title if cleaned_full_title else 'Uncategorized' def match_folders_from_title(title, names_to_match, unwanted_keywords): """ Matches names from a list against a title to determine potential folder names. Prioritizes longer matches. """ if not title or not names_to_match: return [] title_lower = title.lower() matched_cleaned_names = set() # Sort names by length (descending) to match longer names first (e.g., "Spider-Man" before "Spider") sorted_names_to_match = sorted(names_to_match, key=len, reverse=True) for name in sorted_names_to_match: name_lower = name.lower() if not name_lower: continue # Skip empty names # Use word boundary regex to ensure whole word matching pattern = r'\b' + re.escape(name_lower) + r'\b' if re.search(pattern, title_lower): # Clean the original casing 'name' for folder creation, then lowercase for unwanted keyword check cleaned_name_for_folder = clean_folder_name(name) if cleaned_name_for_folder.lower() not in unwanted_keywords: # Check against lowercased unwanted keywords matched_cleaned_names.add(cleaned_name_for_folder) # Add the cleaned name with original casing preserved as much as possible return sorted(list(matched_cleaned_names)) def is_image(filename): """Checks if the filename has a common image extension.""" if not filename: return False _, ext = os.path.splitext(filename) return ext.lower() in IMAGE_EXTENSIONS def is_video(filename): """Checks if the filename has a common video extension.""" if not filename: return False _, ext = os.path.splitext(filename) return ext.lower() in VIDEO_EXTENSIONS def is_zip(filename): """Checks if the filename ends with .zip (case-insensitive).""" if not filename: return False return filename.lower().endswith('.zip') def is_rar(filename): """Checks if the filename ends with .rar (case-insensitive).""" if not filename: return False return filename.lower().endswith('.rar') def is_post_url(url): """Checks if the URL likely points to a specific post.""" if not isinstance(url, str): return False return '/post/' in urlparse(url).path def extract_post_info(url_string): """Extracts service, user ID, and post ID from a Kemono/Coomer URL.""" service, user_id, post_id = None, None, None if not isinstance(url_string, str) or not url_string.strip(): return None, None, None try: parsed_url = urlparse(url_string.strip()) domain = parsed_url.netloc.lower() # Check if the domain is one of the known Kemono or Coomer domains is_kemono = any(d in domain for d in ['kemono.su', 'kemono.party']) is_coomer = any(d in domain for d in ['coomer.su', 'coomer.party']) if not (is_kemono or is_coomer): return None, None, None # Not a recognized service path_parts = [part for part in parsed_url.path.strip('/').split('/') if part] # Standard URL structure: /{service}/user/{user_id}/post/{post_id} # Or creator page: /{service}/user/{user_id} if len(path_parts) >= 3 and path_parts[1].lower() == 'user': service = path_parts[0] user_id = path_parts[2] if len(path_parts) >= 5 and path_parts[3].lower() == 'post': post_id = path_parts[4] return service, user_id, post_id # API URL structure: /api/v1/{service}/user/{user_id}/post/{post_id} # Or API creator page: /api/v1/{service}/user/{user_id} if len(path_parts) >= 5 and path_parts[0].lower() == 'api' and \ path_parts[1].lower() == 'v1' and path_parts[3].lower() == 'user': service = path_parts[2] user_id = path_parts[4] if len(path_parts) >= 7 and path_parts[5].lower() == 'post': post_id = path_parts[6] return service, user_id, post_id except Exception as e: # Log or handle unexpected errors during URL parsing if necessary print(f"Debug: Exception during extract_post_info for URL '{url_string}': {e}") return None, None, None # Return None for all if parsing fails or structure is not matched def fetch_posts_paginated(api_url_base, headers, offset, logger, cancellation_event=None): """Fetches a single page of posts from the API.""" if cancellation_event and cancellation_event.is_set(): logger(" Fetch cancelled before request.") raise RuntimeError("Fetch operation cancelled by user.") # Raise error to stop pagination paginated_url = f'{api_url_base}?o={offset}' logger(f" Fetching: {paginated_url}") try: response = requests.get(paginated_url, headers=headers, timeout=(10, 60)) # connect_timeout, read_timeout response.raise_for_status() # Raises HTTPError for bad responses (4XX or 5XX) # It's good practice to check content type before parsing JSON if 'application/json' not in response.headers.get('Content-Type', '').lower(): logger(f"⚠️ Unexpected content type from API: {response.headers.get('Content-Type')}. Body: {response.text[:200]}") return [] # Return empty list or raise error if JSON is strictly expected return response.json() except requests.exceptions.Timeout: # Log specific timeout and re-raise or handle as a specific error raise RuntimeError(f"Timeout fetching offset {offset} from {paginated_url}") except requests.exceptions.RequestException as e: # General request exception (includes HTTPError, ConnectionError, etc.) err_msg = f"Error fetching offset {offset} from {paginated_url}: {e}" if e.response is not None: err_msg += f" (Status: {e.response.status_code}, Body: {e.response.text[:200]})" raise RuntimeError(err_msg) except ValueError as e: # JSONDecodeError inherits from ValueError # Handle cases where response is not valid JSON raise RuntimeError(f"Error decoding JSON from offset {offset} ({paginated_url}): {e}. Response text: {response.text[:200]}") except Exception as e: # Catch any other unexpected errors raise RuntimeError(f"Unexpected error fetching offset {offset} ({paginated_url}): {e}") def download_from_api(api_url_input, logger=print, start_page=None, end_page=None, manga_mode=False, cancellation_event=None): """ Generator function to fetch post data from Kemono/Coomer API. Handles pagination and yields batches of posts. In Manga Mode, fetches all posts first, then yields them in reverse order (oldest first). """ headers = {'User-Agent': 'Mozilla/5.0', 'Accept': 'application/json'} # Standard headers service, user_id, target_post_id = extract_post_info(api_url_input) if cancellation_event and cancellation_event.is_set(): logger(" Download_from_api cancelled at start.") return if not service or not user_id: logger(f"❌ Invalid URL or could not extract service/user: {api_url_input}") return # Page range is ignored for single post URLs if target_post_id and (start_page or end_page): logger("⚠️ Page range (start/end page) is ignored when a specific post URL is provided.") start_page = end_page = None # Manga mode is only applicable for creator feeds (not single posts) is_creator_feed_for_manga = manga_mode and not target_post_id parsed_input = urlparse(api_url_input) api_domain = parsed_input.netloc # Ensure we use a valid API domain, default to kemono.su if unrecognized if not any(d in api_domain.lower() for d in ['kemono.su', 'kemono.party', 'coomer.su', 'coomer.party']): logger(f"⚠️ Unrecognized domain '{api_domain}'. Defaulting to kemono.su for API calls.") api_domain = "kemono.su" # Or "coomer.party" if that's preferred default api_base_url = f"https://{api_domain}/api/v1/{service}/user/{user_id}" page_size = 50 # Kemono API typically returns 50 posts per page # --- Manga Mode: Fetch all posts first, then reverse --- if is_creator_feed_for_manga: logger(" Manga Mode: Fetching all posts to reverse order (oldest posts processed first)...") all_posts_for_manga_mode = [] current_offset_manga = 0 while True: if cancellation_event and cancellation_event.is_set(): logger(" Manga mode post fetching cancelled.") break try: posts_batch_manga = fetch_posts_paginated(api_base_url, headers, current_offset_manga, logger, cancellation_event) if not isinstance(posts_batch_manga, list): # API should always return a list logger(f"❌ API Error (Manga Mode): Expected list of posts, got {type(posts_batch_manga)}.") break if not posts_batch_manga: # Empty list means no more posts logger("✅ Reached end of posts (Manga Mode fetch all).") break all_posts_for_manga_mode.extend(posts_batch_manga) current_offset_manga += len(posts_batch_manga) # API doesn't use page_size in offset, but number of posts time.sleep(0.6) # Be respectful to the API except RuntimeError as e: # Catch errors from fetch_posts_paginated if "cancelled by user" in str(e).lower(): logger(f"ℹ️ Manga mode pagination stopped due to cancellation: {e}") else: logger(f"❌ {e}\n Aborting manga mode pagination.") break # Stop fetching on error except Exception as e: # Catch any other unexpected errors logger(f"❌ Unexpected error during manga mode fetch: {e}") traceback.print_exc() break if cancellation_event and cancellation_event.is_set(): return # Early exit if cancelled if all_posts_for_manga_mode: logger(f" Manga Mode: Fetched {len(all_posts_for_manga_mode)} total posts. Reversing order...") all_posts_for_manga_mode.reverse() # Oldest posts first # Yield in batches of page_size for i in range(0, len(all_posts_for_manga_mode), page_size): if cancellation_event and cancellation_event.is_set(): logger(" Manga mode post yielding cancelled.") break yield all_posts_for_manga_mode[i:i + page_size] else: logger(" Manga Mode: No posts found to process.") return # End of Manga Mode logic # --- Normal Mode or Single Post Mode --- current_page_num = 1 current_offset = 0 processed_target_post_flag = False # For single post URLs if start_page and start_page > 1: current_offset = (start_page - 1) * page_size # Calculate offset for starting page current_page_num = start_page logger(f" Starting from page {current_page_num} (calculated offset {current_offset}).") while True: # Pagination loop if cancellation_event and cancellation_event.is_set(): logger(" Post fetching loop cancelled.") break if end_page and current_page_num > end_page: logger(f"✅ Reached specified end page ({end_page}). Stopping.") break if target_post_id and processed_target_post_flag: # If single post was found and processed logger(f"✅ Target post {target_post_id} has been processed.") break try: posts_batch = fetch_posts_paginated(api_base_url, headers, current_offset, logger, cancellation_event) if not isinstance(posts_batch, list): logger(f"❌ API Error: Expected list of posts, got {type(posts_batch)} at page {current_page_num}.") break except RuntimeError as e: # Catch errors from fetch_posts_paginated if "cancelled by user" in str(e).lower(): logger(f"ℹ️ Pagination stopped due to cancellation: {e}") else: logger(f"❌ {e}\n Aborting pagination at page {current_page_num}.") break except Exception as e: # Catch any other unexpected errors logger(f"❌ Unexpected error fetching page {current_page_num}: {e}") traceback.print_exc() break if not posts_batch: # No more posts if current_page_num == (start_page or 1) and not target_post_id : # No posts on first page of a creator feed logger("😕 No posts found on the first page checked.") elif not target_post_id: # End of creator feed logger("✅ Reached end of posts (no more content).") break # Exit pagination loop if target_post_id: # Processing a single post URL matching_post = next((p for p in posts_batch if str(p.get('id')) == str(target_post_id)), None) if matching_post: logger(f"🎯 Found target post {target_post_id}.") yield [matching_post] # Yield as a list containing one item processed_target_post_flag = True # Mark as processed else: # This case should ideally not happen if the post ID is valid and API is consistent. # If the API returns posts in pages, a specific post ID might not be on the first page if offset isn't 0. # However, for a direct post URL, we expect it or an error. logger(f"❌ Target post {target_post_id} not found in the batch from offset {current_offset}. This may indicate the post URL is incorrect or the API behavior is unexpected.") break # Stop if target post not found where expected else: # Processing a creator feed (not a single post) yield posts_batch # Yield the batch of posts if not (target_post_id and processed_target_post_flag): # If not a single post that was just processed if not posts_batch : break # Should be redundant due to check above, but safe current_offset += len(posts_batch) # Kemono API uses item offset, not page offset current_page_num += 1 time.sleep(0.6) # Be respectful to the API else: # Single post was processed, exit loop break # Final check if a specific target post was requested but not found if target_post_id and not processed_target_post_flag and not (cancellation_event and cancellation_event.is_set()): logger(f"❌ Target post {target_post_id} could not be found after checking relevant pages.") def get_link_platform(url): """Attempts to identify the platform of an external link from its domain.""" try: domain = urlparse(url).netloc.lower() # Specific known platforms (add more as needed) if 'drive.google.com' in domain: return 'google drive' if 'mega.nz' in domain or 'mega.io' in domain: return 'mega' if 'dropbox.com' in domain: return 'dropbox' if 'patreon.com' in domain: return 'patreon' if 'instagram.com' in domain: return 'instagram' if 'twitter.com' in domain or 'x.com' in domain: return 'twitter/x' if 'discord.gg' in domain or 'discord.com/invite' in domain: return 'discord invite' if 'pixiv.net' in domain: return 'pixiv' if 'kemono.su' in domain or 'kemono.party' in domain: return 'kemono' # Explicitly identify kemono if 'coomer.su' in domain or 'coomer.party' in domain: return 'coomer' # Explicitly identify coomer # Generic extraction for other domains (e.g., 'example' from 'www.example.com') parts = domain.split('.') if len(parts) >= 2: # Return the second-to-last part for common structures (e.g., 'google' from google.com) # Avoid returning generic TLDs like 'com', 'org', 'net' as the platform # Handle cases like 'google.co.uk' -> 'google' if parts[-2] not in ['com', 'org', 'net', 'gov', 'edu', 'co'] or len(parts) == 2: return parts[-2] elif len(parts) >= 3 and parts[-3] not in ['com', 'org', 'net', 'gov', 'edu', 'co']: return parts[-3] else: # Fallback to full domain if unsure or very short domain return domain return 'external' # Default if domain parsing fails or is too simple (e.g., 'localhost') except Exception: return 'unknown' # Error case class PostProcessorSignals(QObject): """Defines signals used by PostProcessorWorker to communicate with the GUI thread.""" progress_signal = pyqtSignal(str) # Generic log messages file_download_status_signal = pyqtSignal(bool) # True if a file download starts, False if ends/fails # Signal carries post_title, link_text, link_url, platform external_link_signal = pyqtSignal(str, str, str, str) # Signal carries filename, downloaded_bytes, total_bytes for progress bar file_progress_signal = pyqtSignal(str, int, int) class PostProcessorWorker: """Processes a single post: determines save paths, downloads files, handles compression.""" def __init__(self, post_data, download_root, known_names, filter_character_list, unwanted_keywords, filter_mode, skip_zip, skip_rar, use_subfolders, use_post_subfolders, target_post_id_from_initial_url, custom_folder_name, compress_images, download_thumbnails, service, user_id, api_url_input, cancellation_event, signals, downloaded_files, downloaded_file_hashes, downloaded_files_lock, downloaded_file_hashes_lock, skip_words_list=None, show_external_links=False, extract_links_only=False, num_file_threads=4, skip_current_file_flag=None, manga_mode_active=False ): self.post = post_data self.download_root = download_root self.known_names = known_names self.filter_character_list = filter_character_list if filter_character_list else [] self.unwanted_keywords = unwanted_keywords if unwanted_keywords is not None else set() self.filter_mode = filter_mode # 'image', 'video', or 'all' self.skip_zip = skip_zip self.skip_rar = skip_rar self.use_subfolders = use_subfolders self.use_post_subfolders = use_post_subfolders self.target_post_id_from_initial_url = target_post_id_from_initial_url # ID from initial URL if it was a post URL self.custom_folder_name = custom_folder_name # For single post downloads self.compress_images = compress_images self.download_thumbnails = download_thumbnails self.service = service self.user_id = user_id self.api_url_input = api_url_input # The original URL input by the user self.cancellation_event = cancellation_event self.signals = signals # For emitting progress, logs, etc. self.skip_current_file_flag = skip_current_file_flag # Event to skip current file download # Sets and locks for tracking downloaded files/hashes across threads/workers self.downloaded_files = downloaded_files if downloaded_files is not None else set() self.downloaded_file_hashes = downloaded_file_hashes if downloaded_file_hashes is not None else set() self.downloaded_files_lock = downloaded_files_lock if downloaded_files_lock is not None else threading.Lock() self.downloaded_file_hashes_lock = downloaded_file_hashes_lock if downloaded_file_hashes_lock is not None else threading.Lock() self.skip_words_list = skip_words_list if skip_words_list is not None else [] self.show_external_links = show_external_links # Whether to extract and log external links self.extract_links_only = extract_links_only # If true, only extracts links, no downloads self.num_file_threads = num_file_threads # Threads for downloading files within this post self.manga_mode_active = manga_mode_active # True if manga mode is on # Disable compression if Pillow is not available if self.compress_images and Image is None: self.logger("⚠️ Image compression disabled: Pillow library not found.") self.compress_images = False def logger(self, message): """Emits a log message via the progress_signal if available.""" if self.signals and hasattr(self.signals, 'progress_signal'): self.signals.progress_signal.emit(message) else: # Fallback if signals are not connected (e.g., testing) print(f"(Worker Log - No Signal): {message}") def check_cancel(self): """Checks if cancellation has been requested.""" return self.cancellation_event.is_set() def _download_single_file(self, file_info, target_folder_path, headers, original_post_id_for_log, skip_event, post_title="", file_index_in_post=0): # Added post_title here """Downloads a single file, handles retries, compression, and hash checking.""" if self.check_cancel() or (skip_event and skip_event.is_set()): return 0, 1 # Downloaded, Skipped file_url = file_info.get('url') # Use '_original_name_for_log' if available (set in process()), otherwise 'name' api_original_filename = file_info.get('_original_name_for_log', file_info.get('name')) if not file_url or not api_original_filename: self.logger(f"⚠️ Skipping file from post {original_post_id_for_log}: Missing URL or original filename. Info: {str(file_info)[:100]}") return 0, 1 # --- Skip Check 1: Skip Words (Always based on Filename) --- if self.skip_words_list: content_to_check_for_skip_words = api_original_filename.lower() # ALWAYS use filename for skip words log_source_for_skip_words = f"Filename '{api_original_filename}'" for skip_word in self.skip_words_list: if skip_word.lower() in content_to_check_for_skip_words: self.logger(f" -> Skip File (Keyword Match): {log_source_for_skip_words} contains '{skip_word}'.") return 0, 1 # --- Character Filter (Global Gate) --- # If character filters are active, the item (post for manga, file for normal) must match. if self.filter_character_list: matches_any_character_filter = False if self.manga_mode_active: # Manga Mode: Character filter applies to POST TITLE if any(is_title_match_for_character(post_title, char_filter) for char_filter in self.filter_character_list): matches_any_character_filter = True if not matches_any_character_filter: # This log might be redundant if the post-level check in process() already skipped it, # but it's a safeguard if a file somehow reaches here without its post title matching. self.logger(f" -> Skip File (Manga Mode - Post Title No Char Match): Title '{post_title[:30]}' doesn't match active character filters for this file.") return 0, 1 else: # Normal mode: Character filter applies to FILENAME if any(is_filename_match_for_character(api_original_filename, char_filter) for char_filter in self.filter_character_list): matches_any_character_filter = True if not matches_any_character_filter: self.logger(f" -> Skip File (Normal Mode - Filename No Char Match): '{api_original_filename}' doesn't match active character filters.") return 0, 1 # --- Filename Generation (Manga Mode vs Normal Mode) --- _, original_ext = os.path.splitext(api_original_filename) if original_ext and not original_ext.startswith('.'): original_ext = '.' + original_ext elif not original_ext: # Try to derive extension if missing _, temp_ext = os.path.splitext(clean_filename(api_original_filename)) # Clean first if temp_ext and not temp_ext.startswith('.'): original_ext = '.' + temp_ext elif temp_ext: original_ext = temp_ext else: original_ext = '' # No extension found filename_to_save = "" if self.manga_mode_active: # Manga mode renaming logic (uses post_title and sequence) if post_title and post_title.strip(): cleaned_post_title_full = clean_filename(post_title.strip()) # Clean the post title for filename use original_filename_base, _ = os.path.splitext(api_original_filename) # Get base of original API filename # Try to extract a sequence number from the original filename extracted_sequence_from_original = "" # Simple number at the end: e.g., "image_01", "pic123" simple_end_match = re.search(r'(\d+)$', original_filename_base) if simple_end_match: extracted_sequence_from_original = simple_end_match.group(1).zfill(2) # Pad with zero if needed else: # More complex patterns like "page 01", "ch-2", "ep_003" complex_match = re.search(r'(?:[ _.\-/]|^)(?:p|page|ch|chapter|ep|episode|v|vol|volume|no|num|number|pt|part)[ _.\-]*(\d+)', original_filename_base, re.IGNORECASE) if complex_match: extracted_sequence_from_original = complex_match.group(1).zfill(2) # Pad # Base for new filename from post title, removing existing page/chapter numbers from title cleaned_title_base = re.sub( r'[|\[\]()]*[ _.\-]*(?:page|p|ch|chapter|ep|episode|v|vol|volume|no|num|number|pt|part)s?[ _.\-]*\d+([ _.\-]+\d+)?([ _.\-]*(?:END|FIN))?$', '', cleaned_post_title_full, flags=re.IGNORECASE ).strip() if not cleaned_title_base: # Fallback if regex strips everything cleaned_title_base = cleaned_post_title_full cleaned_title_base = cleaned_title_base.rstrip(' _.-') # Clean trailing separators if extracted_sequence_from_original: filename_to_save = f"{cleaned_title_base} - {extracted_sequence_from_original}{original_ext}" else: # Fallback to file index in post if no sequence found in original filename fallback_sequence = str(file_index_in_post + 1).zfill(2) # Pad with zero filename_to_save = f"{cleaned_title_base} - {fallback_sequence}{original_ext}" # Handle potential filename collisions by appending a counter counter = 1 base_name_coll, ext_coll = os.path.splitext(filename_to_save) temp_filename_for_collision_check = filename_to_save while os.path.exists(os.path.join(target_folder_path, temp_filename_for_collision_check)): temp_filename_for_collision_check = f"{base_name_coll}_{counter}{ext_coll}" counter += 1 if temp_filename_for_collision_check != filename_to_save: # self.logger(f" Manga Mode: Collision detected. Adjusted filename to '{temp_filename_for_collision_check}'") filename_to_save = temp_filename_for_collision_check else: # Manga mode but post_title is missing (should be rare) filename_to_save = clean_filename(api_original_filename) # Fallback to cleaned original self.logger(f"⚠️ Manga mode: Post title missing for post {original_post_id_for_log}. Using cleaned original filename '{filename_to_save}'.") else: # Normal mode filename_to_save = clean_filename(api_original_filename) final_filename_for_sets_and_saving = filename_to_save # This is the name used for saving and duplicate checks # --- File Type Filtering (applies to both modes, based on original filename) --- if not self.download_thumbnails: # Thumbnail mode bypasses these filters is_img_type = is_image(api_original_filename) # Check original type is_vid_type = is_video(api_original_filename) is_zip_type = is_zip(api_original_filename) is_rar_type = is_rar(api_original_filename) if self.filter_mode == 'image' and not is_img_type: self.logger(f" -> Filter Skip: '{api_original_filename}' (Not Image).") return 0,1 if self.filter_mode == 'video' and not is_vid_type: self.logger(f" -> Filter Skip: '{api_original_filename}' (Not Video).") return 0,1 if self.skip_zip and is_zip_type: self.logger(f" -> Pref Skip: '{api_original_filename}' (ZIP).") return 0,1 if self.skip_rar and is_rar_type: self.logger(f" -> Pref Skip: '{api_original_filename}' (RAR).") return 0,1 target_folder_basename = os.path.basename(target_folder_path) # For logging current_save_path = os.path.join(target_folder_path, final_filename_for_sets_and_saving) # --- Duplicate Checks (Path, Global Filename, Hash) --- if os.path.exists(current_save_path) and os.path.getsize(current_save_path) > 0: self.logger(f" -> Exists (Path): '{final_filename_for_sets_and_saving}' in '{target_folder_basename}'.") with self.downloaded_files_lock: self.downloaded_files.add(final_filename_for_sets_and_saving) # Add to global set return 0, 1 with self.downloaded_files_lock: if final_filename_for_sets_and_saving in self.downloaded_files: self.logger(f" -> Global Skip (Filename): '{final_filename_for_sets_and_saving}' already recorded as downloaded this session.") return 0, 1 # --- Download Loop with Retries --- max_retries = 3 retry_delay = 5 # seconds downloaded_size_bytes = 0 calculated_file_hash = None file_content_bytes = None # BytesIO to hold downloaded content total_size_bytes = 0 # From Content-Length header, set on first attempt download_successful_flag = False for attempt_num in range(max_retries + 1): # max_retries means max_retries + 1 attempts total if self.check_cancel() or (skip_event and skip_event.is_set()): break # Exit retry loop if cancelled try: if attempt_num > 0: self.logger(f" Retrying '{api_original_filename}' (Attempt {attempt_num}/{max_retries})...") time.sleep(retry_delay * (2**(attempt_num - 1))) # Exponential backoff if self.signals and hasattr(self.signals, 'file_download_status_signal'): self.signals.file_download_status_signal.emit(True) # Signal download start response = requests.get(file_url, headers=headers, timeout=(15, 300), stream=True) # connect_timeout, read_timeout response.raise_for_status() # Check for HTTP errors current_total_size_bytes_from_headers = int(response.headers.get('Content-Length', 0)) if attempt_num == 0: # First attempt, log initial size total_size_bytes = current_total_size_bytes_from_headers size_str = f"{total_size_bytes / (1024 * 1024):.2f} MB" if total_size_bytes > 0 else "unknown size" self.logger(f"⬇️ Downloading: '{api_original_filename}' (Size: {size_str}) [Saving as: '{final_filename_for_sets_and_saving}']") # Use the size from the current attempt for progress reporting current_attempt_total_size = current_total_size_bytes_from_headers file_content_buffer = BytesIO() # Buffer for this attempt's content current_attempt_downloaded_bytes = 0 md5_hasher = hashlib.md5() last_progress_time = time.time() for chunk in response.iter_content(chunk_size=1 * 1024 * 1024): # 1MB chunks if self.check_cancel() or (skip_event and skip_event.is_set()): break # Stop reading chunks if cancelled if chunk: file_content_buffer.write(chunk) md5_hasher.update(chunk) current_attempt_downloaded_bytes += len(chunk) # Emit progress signal periodically if time.time() - last_progress_time > 1 and current_attempt_total_size > 0 and \ self.signals and hasattr(self.signals, 'file_progress_signal'): self.signals.file_progress_signal.emit( api_original_filename, # Show original name in progress current_attempt_downloaded_bytes, current_attempt_total_size ) last_progress_time = time.time() if self.check_cancel() or (skip_event and skip_event.is_set()): if file_content_buffer: file_content_buffer.close() break # Break from retry loop if cancelled during chunk iteration # Check if download was successful for this attempt if current_attempt_downloaded_bytes > 0: # Successfully downloaded some data calculated_file_hash = md5_hasher.hexdigest() downloaded_size_bytes = current_attempt_downloaded_bytes if file_content_bytes: file_content_bytes.close() # Close previous attempt's buffer file_content_bytes = file_content_buffer # Keep this attempt's content file_content_bytes.seek(0) # Reset pointer for reading download_successful_flag = True break # Exit retry loop on success elif current_attempt_total_size == 0 and response.status_code == 200: # Handle 0-byte files self.logger(f" Note: '{api_original_filename}' is a 0-byte file according to server.") calculated_file_hash = md5_hasher.hexdigest() # Hash of empty content downloaded_size_bytes = 0 if file_content_bytes: file_content_bytes.close() file_content_bytes = file_content_buffer # Keep empty buffer file_content_bytes.seek(0) download_successful_flag = True break # Exit retry loop else: # No data or failed attempt (e.g. connection dropped before any data) if file_content_buffer: file_content_buffer.close() # Discard this attempt's buffer except (requests.exceptions.ConnectionError, requests.exceptions.Timeout, http.client.IncompleteRead) as e: self.logger(f" ❌ Download Error (Retryable): {api_original_filename}. Error: {e}") if 'file_content_buffer' in locals() and file_content_buffer: file_content_buffer.close() except requests.exceptions.RequestException as e: # Non-retryable (like 404) self.logger(f" ❌ Download Error (Non-Retryable): {api_original_filename}. Error: {e}") if 'file_content_buffer' in locals() and file_content_buffer: file_content_buffer.close() break # Break from retry loop except Exception as e: # Other unexpected errors self.logger(f" ❌ Unexpected Download Error: {api_original_filename}: {e}\n{traceback.format_exc(limit=2)}") if 'file_content_buffer' in locals() and file_content_buffer: file_content_buffer.close() break # Break from retry loop finally: if self.signals and hasattr(self.signals, 'file_download_status_signal'): self.signals.file_download_status_signal.emit(False) # Signal download end/attempt end # End of retry loop # Emit final progress update (e.g., 100% or 0/0 if failed) if self.signals and hasattr(self.signals, 'file_progress_signal'): # Use total_size_bytes from the first successful header read for consistency in total final_total_for_progress = total_size_bytes if download_successful_flag and total_size_bytes > 0 else downloaded_size_bytes self.signals.file_progress_signal.emit(api_original_filename, downloaded_size_bytes, final_total_for_progress) if self.check_cancel() or (skip_event and skip_event.is_set()): self.logger(f" ⚠️ Download interrupted for {api_original_filename}.") if file_content_bytes: file_content_bytes.close() return 0, 1 # Skipped due to interruption if not download_successful_flag: self.logger(f"❌ Download failed for '{api_original_filename}' after {max_retries + 1} attempts.") if file_content_bytes: file_content_bytes.close() return 0, 1 # Skipped due to download failure # --- Hash Check (post-download), Compression, Saving --- with self.downloaded_file_hashes_lock: if calculated_file_hash in self.downloaded_file_hashes: self.logger(f" -> Content Skip (Hash): '{api_original_filename}' (Hash: {calculated_file_hash[:8]}...) already downloaded this session.") with self.downloaded_files_lock: self.downloaded_files.add(final_filename_for_sets_and_saving) # Still mark filename as "processed" if file_content_bytes: file_content_bytes.close() return 0, 1 # Skipped due to hash duplicate bytes_to_write = file_content_bytes # This is the BytesIO from the successful download final_filename_after_processing = final_filename_for_sets_and_saving # May change if compressed current_save_path_final = current_save_path # May change if filename changes due to compression is_img_for_compress_check = is_image(api_original_filename) # Check original type for compression eligibility if is_img_for_compress_check and self.compress_images and Image and downloaded_size_bytes > (1.5 * 1024 * 1024): # Compress if > 1.5MB self.logger(f" Compressing '{api_original_filename}' ({downloaded_size_bytes / (1024*1024):.2f} MB)...") try: # Ensure bytes_to_write is at the beginning for Pillow bytes_to_write.seek(0) with Image.open(bytes_to_write) as img_obj: # Handle palette mode images and convert to RGB/RGBA for WebP if img_obj.mode == 'P': img_obj = img_obj.convert('RGBA') elif img_obj.mode not in ['RGB', 'RGBA', 'L']: img_obj = img_obj.convert('RGB') compressed_bytes_io = BytesIO() img_obj.save(compressed_bytes_io, format='WebP', quality=80, method=4) # method 4 is a good balance compressed_size = compressed_bytes_io.getbuffer().nbytes # Only use compressed if significantly smaller (e.g., >10% reduction) if compressed_size < downloaded_size_bytes * 0.9: self.logger(f" Compression success: {compressed_size / (1024*1024):.2f} MB.") bytes_to_write.close() # Close original downloaded content stream bytes_to_write = compressed_bytes_io # Use compressed content stream bytes_to_write.seek(0) # Reset pointer for writing base_name_orig, _ = os.path.splitext(final_filename_for_sets_and_saving) final_filename_after_processing = base_name_orig + '.webp' # Change extension current_save_path_final = os.path.join(target_folder_path, final_filename_after_processing) self.logger(f" Updated filename (compressed): {final_filename_after_processing}") else: self.logger(f" Compression skipped: WebP not significantly smaller."); bytes_to_write.seek(0) # Reset pointer if not using compressed except Exception as comp_e: self.logger(f"❌ Compression failed for '{api_original_filename}': {comp_e}. Saving original."); bytes_to_write.seek(0) # Reset pointer # Check for existence again if filename changed due to compression if final_filename_after_processing != final_filename_for_sets_and_saving and \ os.path.exists(current_save_path_final) and os.path.getsize(current_save_path_final) > 0: self.logger(f" -> Exists (Path - Post-Compress): '{final_filename_after_processing}' in '{target_folder_basename}'.") with self.downloaded_files_lock: self.downloaded_files.add(final_filename_after_processing) bytes_to_write.close() return 0, 1 # --- Save the file --- try: os.makedirs(os.path.dirname(current_save_path_final), exist_ok=True) # Ensure directory exists with open(current_save_path_final, 'wb') as f_out: f_out.write(bytes_to_write.getvalue()) # Write content # Add to downloaded sets upon successful save with self.downloaded_file_hashes_lock: self.downloaded_file_hashes.add(calculated_file_hash) with self.downloaded_files_lock: self.downloaded_files.add(final_filename_after_processing) self.logger(f"✅ Saved: '{final_filename_after_processing}' (from '{api_original_filename}', {downloaded_size_bytes / (1024*1024):.2f} MB) in '{target_folder_basename}'") time.sleep(0.05) # Small delay, can be removed if not needed return 1, 0 # Downloaded, Skipped except Exception as save_err: self.logger(f"❌ Save Fail for '{final_filename_after_processing}': {save_err}") if os.path.exists(current_save_path_final): # Attempt to remove partial file try: os.remove(current_save_path_final); except OSError: self.logger(f" -> Failed to remove partially saved file: {current_save_path_final}") return 0, 1 # Skipped due to save error finally: if bytes_to_write: bytes_to_write.close() # Ensure stream is closed def process(self): """Main processing logic for a single post.""" if self.check_cancel(): return 0, 0 # Downloaded, Skipped total_downloaded_this_post = 0 total_skipped_this_post = 0 # Prepare headers for file downloads parsed_api_url = urlparse(self.api_url_input) # Use the original input URL for referer base referer_url = f"https://{parsed_api_url.netloc}/" headers = {'User-Agent': 'Mozilla/5.0', 'Referer': referer_url, 'Accept': '*/*'} # Regex for finding links in HTML content link_pattern = re.compile(r"""]*>(.*?)""", re.IGNORECASE | re.DOTALL) # Extract post details post_data = self.post post_title = post_data.get('title', '') or 'untitled_post' post_id = post_data.get('id', 'unknown_id') post_main_file_info = post_data.get('file') # Main file object for the post post_attachments = post_data.get('attachments', []) # List of attachment objects post_content_html = post_data.get('content', '') # HTML content of the post # Log post processing start self.logger(f"\n--- Processing Post {post_id} ('{post_title[:50]}...') (Thread: {threading.current_thread().name}) ---") num_potential_files = len(post_attachments or []) + (1 if post_main_file_info and post_main_file_info.get('path') else 0) # --- Post-Level Skip Word Check (REMOVED for Manga Mode based on Title) --- # Skip words are now ALWAYS checked at the file level based on FILENAME in _download_single_file. # The old Manga Mode post-level skip based on title is removed. # --- Post-Level Character Filter Check (Only for Manga Mode, based on Title) --- # If Manga Mode is active and character filters are set, the post title MUST match one of them. # This acts as a gate for processing files from this post in Manga Mode. if not self.extract_links_only and self.manga_mode_active and self.filter_character_list: if not any(is_title_match_for_character(post_title, char_name) for char_name in self.filter_character_list): self.logger(f" -> Skip Post (Manga Mode - Title No Char Match): Title '{post_title[:50]}' doesn't match active character filters.") return 0, num_potential_files # Skip all files in this post # Validate attachments structure if not isinstance(post_attachments, list): self.logger(f"⚠️ Corrupt attachment data for post {post_id} (expected list, got {type(post_attachments)}). Skipping attachments.") post_attachments = [] # --- Determine Base Save Folders --- potential_base_save_folders = [] # List of base folder names (not full paths yet) if not self.extract_links_only: # Folder logic only applies if not just extracting links if self.use_subfolders: if self.filter_character_list: # User specified character names for folders if self.manga_mode_active: # Manga Mode: Only consider character folders if post title matches that character for char_filter_name in self.filter_character_list: if is_title_match_for_character(post_title, char_filter_name): cleaned_folder = clean_folder_name(char_filter_name) if cleaned_folder: potential_base_save_folders.append(cleaned_folder) # If in manga mode and title didn't match any char filter, this list will be empty. # The post-level skip above should have already caught this. else: # Normal Mode: Create folders for all specified character filters for char_filter_name in self.filter_character_list: cleaned_folder = clean_folder_name(char_filter_name) if cleaned_folder: potential_base_save_folders.append(cleaned_folder) if potential_base_save_folders: self.logger(f" Folder Target(s) (from Character Filter list): {', '.join(potential_base_save_folders)}") elif self.filter_character_list: self.logger(f" Note: Post {post_id} title did not match character filters for folder assignment (Manga Mode) or no valid char folders.") else: # No character filter list from UI, derive folders from title using known_names derived_folders = match_folders_from_title(post_title, self.known_names, self.unwanted_keywords) if derived_folders: potential_base_save_folders.extend(derived_folders) self.logger(f" Folder Target(s) (Derived from Title & Known Names): {', '.join(derived_folders)}") else: # Fallback if no known_names match fallback_folder = extract_folder_name_from_title(post_title, self.unwanted_keywords) potential_base_save_folders.append(fallback_folder) self.logger(f" Folder Target (Fallback from Title): {fallback_folder}") if not potential_base_save_folders: # If still no folders, use a generic one based on post title or default potential_base_save_folders.append(clean_folder_name(post_title if post_title else "untitled_creator_content")) self.logger(f" Folder Target (Final Fallback): {potential_base_save_folders[0]}") else: # Not using subfolders, all files go to download_root potential_base_save_folders = [""] # Represents the root download directory # --- Post-Level Skip Words in Folder Name --- # This applies if subfolders are used and a folder name itself contains a skip word. if not self.extract_links_only and self.use_subfolders and self.skip_words_list: for folder_name_to_check in potential_base_save_folders: if not folder_name_to_check: continue # Skip root "" if any(skip_word.lower() in folder_name_to_check.lower() for skip_word in self.skip_words_list): matched_skip = next((sw for sw in self.skip_words_list if sw.lower() in folder_name_to_check.lower()), "unknown_skip_word") self.logger(f" -> Skip Post (Folder Keyword): Potential folder '{folder_name_to_check}' contains '{matched_skip}'.") return 0, num_potential_files # --- Extract and Log External Links --- if (self.show_external_links or self.extract_links_only) and post_content_html: try: unique_links_data = {} # Store unique URLs and their text for match in link_pattern.finditer(post_content_html): link_url = match.group(1).strip() link_inner_text = match.group(2) # Raw inner HTML of the tag if not any(ext in link_url.lower() for ext in ['.css', '.js', '.ico', '.xml', '.svg']) \ and not link_url.startswith('javascript:') \ and link_url not in unique_links_data: clean_link_text = re.sub(r'<.*?>', '', link_inner_text) clean_link_text = html.unescape(clean_link_text).strip() display_text = clean_link_text if clean_link_text else "[Link]" unique_links_data[link_url] = display_text links_emitted_count = 0 scraped_platforms = {'kemono', 'coomer', 'patreon'} for link_url, link_text in unique_links_data.items(): platform = get_link_platform(link_url) if platform not in scraped_platforms: if self.signals and hasattr(self.signals, 'external_link_signal'): self.signals.external_link_signal.emit(post_title, link_text, link_url, platform) links_emitted_count +=1 if links_emitted_count > 0: self.logger(f" 🔗 Found {links_emitted_count} potential external link(s) in post content.") except Exception as e: self.logger(f"⚠️ Error parsing post content for links: {e}\n{traceback.format_exc(limit=2)}") if self.extract_links_only: self.logger(f" Extract Links Only mode: Finished processing post {post_id} for links.") return 0, 0 # --- Prepare List of Files to Download --- files_to_download_info_list = [] api_file_domain = urlparse(self.api_url_input).netloc if not api_file_domain: api_file_domain = "kemono.su" if "kemono" in self.service.lower() else "coomer.party" if self.download_thumbnails: self.logger(f" Thumbnail-only mode for Post {post_id}.") if post_main_file_info and isinstance(post_main_file_info, dict) and post_main_file_info.get('path'): if is_image(post_main_file_info.get('name')): file_path = post_main_file_info['path'].lstrip('/') original_api_name = post_main_file_info.get('name') or os.path.basename(file_path) if original_api_name: files_to_download_info_list.append({ 'url': f"https://{api_file_domain}{file_path}" if file_path.startswith('/') else f"https://{api_file_domain}/data/{file_path}", 'name': original_api_name, '_original_name_for_log': original_api_name, '_is_thumbnail': True }) for att_info in post_attachments: if isinstance(att_info, dict) and att_info.get('path') and is_image(att_info.get('name')): att_path = att_info['path'].lstrip('/') original_api_att_name = att_info.get('name') or os.path.basename(att_path) if original_api_att_name: files_to_download_info_list.append({ 'url': f"https://{api_file_domain}{att_path}" if att_path.startswith('/') else f"https://{api_file_domain}/data/{att_path}", 'name': original_api_att_name, '_original_name_for_log': original_api_att_name, '_is_thumbnail': True }) if not files_to_download_info_list: self.logger(f" -> No image thumbnails found for post {post_id} in thumbnail-only mode.") return 0, 0 else: # Normal download mode if post_main_file_info and isinstance(post_main_file_info, dict) and post_main_file_info.get('path'): file_path = post_main_file_info['path'].lstrip('/') original_api_name = post_main_file_info.get('name') or os.path.basename(file_path) if original_api_name: files_to_download_info_list.append({ 'url': f"https://{api_file_domain}{file_path}" if file_path.startswith('/') else f"https://{api_file_domain}/data/{file_path}", 'name': original_api_name, '_original_name_for_log': original_api_name, '_is_thumbnail': False }) else: self.logger(f" ⚠️ Skipping main file for post {post_id}: Missing name (Path: {file_path})") for idx, att_info in enumerate(post_attachments): if isinstance(att_info, dict) and att_info.get('path'): att_path = att_info['path'].lstrip('/') original_api_att_name = att_info.get('name') or os.path.basename(att_path) if original_api_att_name: files_to_download_info_list.append({ 'url': f"https://{api_file_domain}{att_path}" if att_path.startswith('/') else f"https://{api_file_domain}/data/{att_path}", 'name': original_api_att_name, '_original_name_for_log': original_api_att_name, '_is_thumbnail': False }) else: self.logger(f" ⚠️ Skipping attachment {idx+1} for post {post_id}: Missing name (Path: {att_path})") else: self.logger(f" ⚠️ Skipping invalid attachment {idx+1} for post {post_id}: {str(att_info)[:100]}") if not files_to_download_info_list: self.logger(f" No files found to download for post {post_id}.") return 0, 0 self.logger(f" Identified {len(files_to_download_info_list)} file(s) for potential download from post {post_id}.") # --- File Download Loop (using ThreadPoolExecutor for individual files) --- with ThreadPoolExecutor(max_workers=self.num_file_threads, thread_name_prefix=f'P{post_id}File_') as file_pool: futures_list = [] for file_idx, file_info_to_dl in enumerate(files_to_download_info_list): if self.check_cancel(): break actual_target_full_paths_for_this_file = [] if self.use_subfolders: if self.filter_character_list: for char_name_from_filter_list in self.filter_character_list: assign_to_this_char_folder = False if self.manga_mode_active: # Manga Mode: Folder assignment is based on post_title matching char_name_from_filter_list # This check is somewhat redundant if the post-level title check passed, # but ensures files from this post go into the matched character's folder. if is_title_match_for_character(post_title, char_name_from_filter_list): assign_to_this_char_folder = True else: # Normal mode if is_filename_match_for_character(file_info_to_dl.get('_original_name_for_log'), char_name_from_filter_list): assign_to_this_char_folder = True if assign_to_this_char_folder: base_char_folder_path = os.path.join(self.download_root, clean_folder_name(char_name_from_filter_list)) if self.use_post_subfolders: cleaned_title_for_subfolder = clean_folder_name(post_title) post_specific_subfolder_name = f"{post_id}_{cleaned_title_for_subfolder}" if cleaned_title_for_subfolder else f"{post_id}_untitled" actual_target_full_paths_for_this_file.append(os.path.join(base_char_folder_path, post_specific_subfolder_name)) else: actual_target_full_paths_for_this_file.append(base_char_folder_path) else: for base_folder_name in potential_base_save_folders: base_folder_path = os.path.join(self.download_root, base_folder_name) if self.use_post_subfolders: cleaned_title_for_subfolder = clean_folder_name(post_title) post_specific_subfolder_name = f"{post_id}_{cleaned_title_for_subfolder}" if cleaned_title_for_subfolder else f"{post_id}_untitled" actual_target_full_paths_for_this_file.append(os.path.join(base_folder_path, post_specific_subfolder_name)) else: actual_target_full_paths_for_this_file.append(base_folder_path) else: actual_target_full_paths_for_this_file = [self.download_root] if self.target_post_id_from_initial_url and self.custom_folder_name: custom_full_path = os.path.join(self.download_root, self.custom_folder_name) actual_target_full_paths_for_this_file = [custom_full_path] # self.logger(f" Using custom folder for single post: {custom_full_path}") # Logged once is enough if not actual_target_full_paths_for_this_file: self.logger(f" -> File Skip (No Target Folder): '{file_info_to_dl.get('_original_name_for_log')}' for post '{post_title[:30]}'. No character folder match or other path error.") total_skipped_this_post +=1 continue for target_path in set(actual_target_full_paths_for_this_file): if self.check_cancel(): break futures_list.append(file_pool.submit( self._download_single_file, file_info_to_dl, target_path, headers, post_id, self.skip_current_file_flag, post_title, file_idx )) if self.check_cancel(): break for future in as_completed(futures_list): if self.check_cancel(): for f_to_cancel in futures_list: if not f_to_cancel.done(): f_to_cancel.cancel() break try: dl_count, skip_count = future.result() total_downloaded_this_post += dl_count total_skipped_this_post += skip_count except CancelledError: total_skipped_this_post += 1 except Exception as exc_f: self.logger(f"❌ File download task for post {post_id} resulted in error: {exc_f}") total_skipped_this_post += 1 if self.signals and hasattr(self.signals, 'file_progress_signal'): self.signals.file_progress_signal.emit("", 0, 0) if self.check_cancel(): self.logger(f" Post {post_id} processing interrupted/cancelled."); else: self.logger(f" Post {post_id} Summary: Downloaded={total_downloaded_this_post}, Skipped Files={total_skipped_this_post}") return total_downloaded_this_post, total_skipped_this_post class DownloadThread(QThread): """ Manages the overall download process. Fetches posts using download_from_api and then processes each post using PostProcessorWorker. This class is typically used when the GUI needs a separate thread for the entire download operation (e.g., when not using the multi-threaded PostFetcher model from the main app). """ progress_signal = pyqtSignal(str) # For general log messages add_character_prompt_signal = pyqtSignal(str) # To ask user to add character to known list file_download_status_signal = pyqtSignal(bool) # True when a file download starts, False when it ends finished_signal = pyqtSignal(int, int, bool) # (total_downloaded, total_skipped, was_cancelled) external_link_signal = pyqtSignal(str, str, str, str) # (post_title, link_text, link_url, platform) file_progress_signal = pyqtSignal(str, int, int) # (filename, downloaded_bytes, total_bytes) def __init__(self, api_url_input, output_dir, known_names_copy, cancellation_event, # threading.Event() filter_character_list=None, filter_mode='all', skip_zip=True, skip_rar=True, use_subfolders=True, use_post_subfolders=False, custom_folder_name=None, compress_images=False, download_thumbnails=False, service=None, user_id=None, downloaded_files=None, downloaded_file_hashes=None, downloaded_files_lock=None, downloaded_file_hashes_lock=None, skip_words_list=None, show_external_links=False, extract_links_only=False, num_file_threads_for_worker=1, # Threads per PostProcessorWorker instance skip_current_file_flag=None, # threading.Event() to skip one file start_page=None, end_page=None, target_post_id_from_initial_url=None, # If the input URL was a specific post manga_mode_active=False, unwanted_keywords=None # Set of keywords to avoid in auto-generated folder names ): super().__init__() # --- Store all passed arguments as instance attributes --- self.api_url_input = api_url_input self.output_dir = output_dir self.known_names = list(known_names_copy) # Use a copy self.cancellation_event = cancellation_event self.skip_current_file_flag = skip_current_file_flag self.initial_target_post_id = target_post_id_from_initial_url self.filter_character_list = filter_character_list if filter_character_list else [] self.filter_mode = filter_mode self.skip_zip = skip_zip self.skip_rar = skip_rar self.use_subfolders = use_subfolders self.use_post_subfolders = use_post_subfolders self.custom_folder_name = custom_folder_name self.compress_images = compress_images self.download_thumbnails = download_thumbnails self.service = service self.user_id = user_id self.skip_words_list = skip_words_list if skip_words_list is not None else [] # Shared sets and locks for tracking downloads across potential multiple workers (if this thread spawns them) self.downloaded_files = downloaded_files if downloaded_files is not None else set() self.downloaded_files_lock = downloaded_files_lock if downloaded_files_lock is not None else threading.Lock() self.downloaded_file_hashes = downloaded_file_hashes if downloaded_file_hashes is not None else set() self.downloaded_file_hashes_lock = downloaded_file_hashes_lock if downloaded_file_hashes_lock is not None else threading.Lock() self._add_character_response = None # For handling synchronous prompt results self.prompt_mutex = QMutex() # Mutex for _add_character_response self.show_external_links = show_external_links self.extract_links_only = extract_links_only self.num_file_threads_for_worker = num_file_threads_for_worker self.start_page = start_page self.end_page = end_page self.manga_mode_active = manga_mode_active self.unwanted_keywords = unwanted_keywords if unwanted_keywords is not None else \ {'spicy', 'hd', 'nsfw', '4k', 'preview', 'teaser', 'clip'} # Default unwanted keywords # Disable compression if Pillow is not available if self.compress_images and Image is None: self.logger("⚠️ Image compression disabled: Pillow library not found (DownloadThread).") self.compress_images = False def logger(self, message): """Emits a log message via the progress_signal.""" self.progress_signal.emit(str(message)) def isInterruptionRequested(self): """Checks if Qt interruption or manual cancellation event is set.""" return super().isInterruptionRequested() or self.cancellation_event.is_set() def skip_file(self): """Sets the flag to skip the currently processing file (if any).""" if self.isRunning() and self.skip_current_file_flag: self.logger("⏭️ Skip requested for current file (single-thread mode).") self.skip_current_file_flag.set() # Signal the PostProcessorWorker else: self.logger("ℹ️ Skip file: No download active or skip flag not available.") def run(self): """Main execution logic for the download thread.""" grand_total_downloaded_files = 0 grand_total_skipped_files = 0 was_process_cancelled = False # Create a signals object for PostProcessorWorker instances # This allows PostProcessorWorker to emit signals that this DownloadThread can connect to. worker_signals_obj = PostProcessorSignals() try: # Connect signals from the worker_signals_obj to this thread's signals # This effectively forwards signals from PostProcessorWorker up to the GUI worker_signals_obj.progress_signal.connect(self.progress_signal) worker_signals_obj.file_download_status_signal.connect(self.file_download_status_signal) worker_signals_obj.file_progress_signal.connect(self.file_progress_signal) worker_signals_obj.external_link_signal.connect(self.external_link_signal) self.logger(" Starting post fetch (single-threaded download process)...") # Get the generator for fetching posts post_generator = download_from_api( self.api_url_input, logger=self.logger, # Pass this thread's logger start_page=self.start_page, end_page=self.end_page, manga_mode=self.manga_mode_active, cancellation_event=self.cancellation_event # Pass cancellation event ) for posts_batch_data in post_generator: # Iterate through batches of posts if self.isInterruptionRequested(): was_process_cancelled = True; break for individual_post_data in posts_batch_data: # Iterate through posts in a batch if self.isInterruptionRequested(): was_process_cancelled = True; break # Create a PostProcessorWorker for each post post_processing_worker = PostProcessorWorker( post_data=individual_post_data, download_root=self.output_dir, known_names=self.known_names, # Pass copy filter_character_list=self.filter_character_list, unwanted_keywords=self.unwanted_keywords, filter_mode=self.filter_mode, skip_zip=self.skip_zip, skip_rar=self.skip_rar, use_subfolders=self.use_subfolders, use_post_subfolders=self.use_post_subfolders, target_post_id_from_initial_url=self.initial_target_post_id, custom_folder_name=self.custom_folder_name, compress_images=self.compress_images, download_thumbnails=self.download_thumbnails, service=self.service, user_id=self.user_id, api_url_input=self.api_url_input, cancellation_event=self.cancellation_event, signals=worker_signals_obj, # Pass the shared signals object downloaded_files=self.downloaded_files, # Pass shared sets and locks downloaded_file_hashes=self.downloaded_file_hashes, downloaded_files_lock=self.downloaded_files_lock, downloaded_file_hashes_lock=self.downloaded_file_hashes_lock, skip_words_list=self.skip_words_list, show_external_links=self.show_external_links, extract_links_only=self.extract_links_only, num_file_threads=self.num_file_threads_for_worker, skip_current_file_flag=self.skip_current_file_flag, manga_mode_active=self.manga_mode_active ) try: # Process the post (this will block until the worker is done with this post) dl_count, skip_count = post_processing_worker.process() grand_total_downloaded_files += dl_count grand_total_skipped_files += skip_count except Exception as proc_err: post_id_for_err = individual_post_data.get('id', 'N/A') self.logger(f"❌ Error processing post {post_id_for_err} in DownloadThread: {proc_err}") traceback.print_exc() # Estimate skipped files for this post if worker failed catastrophically num_potential_files_est = len(individual_post_data.get('attachments', [])) + \ (1 if individual_post_data.get('file') else 0) grand_total_skipped_files += num_potential_files_est # Clear the skip_current_file_flag if it was set and processed if self.skip_current_file_flag and self.skip_current_file_flag.is_set(): self.skip_current_file_flag.clear() self.logger(" Skip current file flag was processed and cleared by DownloadThread.") self.msleep(10) # Small delay to allow GUI to update, if needed if was_process_cancelled: break # Break from batch loop if cancelled if not was_process_cancelled: self.logger("✅ All posts processed or end of content reached.") except Exception as main_thread_err: self.logger(f"\n❌ Critical error within DownloadThread run loop: {main_thread_err}") traceback.print_exc() # Ensure was_process_cancelled reflects the state if error wasn't due to user cancellation if not self.isInterruptionRequested(): was_process_cancelled = False # Error, not user cancel finally: # Clean up: Disconnect signals to avoid issues if the thread is somehow reused or objects persist try: if worker_signals_obj: # Check if it was initialized worker_signals_obj.progress_signal.disconnect(self.progress_signal) worker_signals_obj.file_download_status_signal.disconnect(self.file_download_status_signal) worker_signals_obj.external_link_signal.disconnect(self.external_link_signal) worker_signals_obj.file_progress_signal.disconnect(self.file_progress_signal) except (TypeError, RuntimeError) as e: # Catch if signals were already disconnected or other issues self.logger(f"ℹ️ Note during DownloadThread signal disconnection: {e}") # Emit the finished signal with totals and cancellation status self.finished_signal.emit(grand_total_downloaded_files, grand_total_skipped_files, was_process_cancelled) def receive_add_character_result(self, result): """Slot to receive the result from a character add prompt shown in the main thread.""" with QMutexLocker(self.prompt_mutex): # Ensure thread-safe access self._add_character_response = result self.logger(f" (DownloadThread) Received character prompt response: {'Yes (added/confirmed)' if result else 'No (declined/failed)'}") # This response might be used by logic within the thread if it was waiting for it, # though typically prompts are handled by the main GUI thread.