Commit

src/core/api_client.py

@@ -3,6 +3,7 @@ import traceback
 from urllib.parse import urlparse
 import json
 import requests
+import cloudscraper 
 from ..utils.network_utils import extract_post_info, prepare_cookies_for_request
 from ..config.constants import (
     STYLE_DATE_POST_TITLE
@@ -80,26 +81,26 @@ def fetch_posts_paginated(api_url_base, headers, offset, logger, cancellation_ev
 
 def fetch_single_post_data(api_domain, service, user_id, post_id, headers, logger, cookies_dict=None):
     """
-    --- NEW FUNCTION ---
-    Fetches the full data, including the 'content' field, for a single post.
+    --- MODIFIED FUNCTION ---
+    Fetches the full data, including the 'content' field, for a single post using cloudscraper.
     """
     post_api_url = f"https://{api_domain}/api/v1/{service}/user/{user_id}/post/{post_id}"
     logger(f"      Fetching full content for post ID {post_id}...")
-    try:
-        with requests.get(post_api_url, headers=headers, timeout=(15, 300), cookies=cookies_dict, stream=True) as response:
-            response.raise_for_status()
-            response_body = b""
-            for chunk in response.iter_content(chunk_size=8192):
-                response_body += chunk
-            
-            full_post_data = json.loads(response_body)
 
-            if isinstance(full_post_data, list) and full_post_data:
-                return full_post_data[0] 
-            if isinstance(full_post_data, dict) and 'post' in full_post_data:
-                return full_post_data['post'] 
-            return full_post_data 
-            
+    scraper = cloudscraper.create_scraper()
+
+    try:
+        response = scraper.get(post_api_url, headers=headers, timeout=(15, 300), cookies=cookies_dict)
+        response.raise_for_status()
+
+        full_post_data = response.json()
+
+        if isinstance(full_post_data, list) and full_post_data:
+            return full_post_data[0] 
+        if isinstance(full_post_data, dict) and 'post' in full_post_data:
+            return full_post_data['post'] 
+        return full_post_data 
+
     except Exception as e:
         logger(f"      ❌ Failed to fetch full content for post {post_id}: {e}")
         return None
@@ -138,8 +139,7 @@ def download_from_api(
     manga_filename_style_for_sort_check=None,
     processed_post_ids=None,
     fetch_all_first=False  
-):
-    # FIX: Define api_domain FIRST, before it is used in the headers
+    ):
     parsed_input_url_for_domain = urlparse(api_url_input)
     api_domain = parsed_input_url_for_domain.netloc
 

src/core/bunkr_client.py

@@ -0,0 +1,249 @@
+import logging
+import os
+import re
+import requests
+import html
+import time
+import datetime
+import urllib.parse
+import json
+import random
+import binascii
+import itertools
+
+class MockMessage:
+    Directory = 1
+    Url = 2
+    Version = 3
+
+class AlbumException(Exception): pass
+class ExtractionError(AlbumException): pass
+class HttpError(ExtractionError):
+    def __init__(self, message="", response=None):
+        self.response = response
+        self.status = response.status_code if response is not None else 0
+        super().__init__(message)
+class ControlException(AlbumException): pass
+class AbortExtraction(ExtractionError, ControlException): pass
+
+try:
+    re_compile = re._compiler.compile
+except AttributeError:
+    re_compile = re.sre_compile.compile
+HTML_RE = re_compile(r"<[^>]+>")
+def extr(txt, begin, end, default=""):
+    try:
+        first = txt.index(begin) + len(begin)
+        return txt[first:txt.index(end, first)]
+    except Exception: return default
+def extract_iter(txt, begin, end, pos=None):
+    try:
+        index = txt.index
+        lbeg = len(begin)
+        lend = len(end)
+        while True:
+            first = index(begin, pos) + lbeg
+            last = index(end, first)
+            pos = last + lend
+            yield txt[first:last]
+    except Exception: return
+def split_html(txt):
+    try: return [html.unescape(x).strip() for x in HTML_RE.split(txt) if x and not x.isspace()]
+    except TypeError: return []
+def parse_datetime(date_string, format="%Y-%m-%dT%H:%M:%S%z", utcoffset=0):
+    try:
+        d = datetime.datetime.strptime(date_string, format)
+        o = d.utcoffset()
+        if o is not None: d = d.replace(tzinfo=None, microsecond=0) - o
+        else:
+            if d.microsecond: d = d.replace(microsecond=0)
+            if utcoffset: d += datetime.timedelta(0, utcoffset * -3600)
+        return d
+    except (TypeError, IndexError, KeyError, ValueError, OverflowError): return None
+unquote = urllib.parse.unquote
+unescape = html.unescape
+
+# --- From: util.py ---
+def decrypt_xor(encrypted, key, base64=True, fromhex=False):
+    if base64: encrypted = binascii.a2b_base64(encrypted)
+    if fromhex: encrypted = bytes.fromhex(encrypted.decode())
+    div = len(key)
+    return bytes([encrypted[i] ^ key[i % div] for i in range(len(encrypted))]).decode()
+def advance(iterable, num):
+    iterator = iter(iterable)
+    next(itertools.islice(iterator, num, num), None)
+    return iterator
+def json_loads(s): return json.loads(s)
+def json_dumps(obj): return json.dumps(obj, separators=(",", ":"))
+
+# --- From: common.py ---
+class Extractor:
+    def __init__(self, match, logger):
+        self.log = logger
+        self.url = match.string
+        self.match = match
+        self.groups = match.groups()
+        self.session = requests.Session()
+        self.session.headers["User-Agent"] = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0"
+    @classmethod
+    def from_url(cls, url, logger):
+        if isinstance(cls.pattern, str): cls.pattern = re.compile(cls.pattern)
+        match = cls.pattern.match(url)
+        return cls(match, logger) if match else None
+    def __iter__(self): return self.items()
+    def items(self): yield MockMessage.Version, 1
+    def request(self, url, method="GET", fatal=True, **kwargs):
+        tries = 1
+        while True:
+            try:
+                response = self.session.request(method, url, **kwargs)
+                if response.status_code < 400: return response
+                msg = f"'{response.status_code} {response.reason}' for '{response.url}'"
+            except requests.exceptions.RequestException as exc:
+                msg = str(exc)
+            
+            self.log.info("%s (retrying...)", msg)
+            if tries > 4: break
+            time.sleep(tries)
+            tries += 1
+        if not fatal: return None
+        raise HttpError(msg)
+    def request_json(self, url, **kwargs):
+        response = self.request(url, **kwargs)
+        try: return json_loads(response.text)
+        except Exception as exc:
+            self.log.warning("%s: %s", exc.__class__.__name__, exc)
+            if not kwargs.get("fatal", True): return {}
+            raise
+
+# --- From: bunkr.py (Adapted) ---
+BASE_PATTERN_BUNKR = r"(?:https?://)?(?:[a-zA-Z0-9-]+\.)?(bunkr\.(?:si|la|ws|red|black|media|site|is|to|ac|cr|ci|fi|pk|ps|sk|ph|su)|bunkrr\.ru)"
+DOMAINS = ["bunkr.si", "bunkr.ws", "bunkr.la", "bunkr.red", "bunkr.black", "bunkr.media", "bunkr.site"]
+CF_DOMAINS = set()
+
+class BunkrAlbumExtractor(Extractor):
+    category = "bunkr"
+    root = "https://bunkr.si"
+    root_dl = "https://get.bunkrr.su"
+    root_api = "https://apidl.bunkr.ru"
+    pattern = re.compile(BASE_PATTERN_BUNKR + r"/a/([^/?#]+)")
+
+    def __init__(self, match, logger):
+        super().__init__(match, logger)
+        domain_match = re.search(BASE_PATTERN_BUNKR, match.string)
+        if domain_match:
+            self.root = "https://" + domain_match.group(1)
+        self.endpoint = self.root_api + "/api/_001_v2"
+        self.album_id = self.groups[-1]
+
+    def items(self):
+        page = self.request(self.url).text
+        title = unescape(unescape(extr(page, 'property="og:title" content="', '"')))
+        items_html = list(extract_iter(page, '<div class="grid-images_box', "</a>"))
+
+        album_data = {
+            "album_id": self.album_id, 
+            "album_name": title,
+            "count": len(items_html),
+        }
+        yield MockMessage.Directory, album_data, {}
+
+        for item_html in items_html:
+            try:
+                webpage_url = unescape(extr(item_html, ' href="', '"'))
+                if webpage_url.startswith("/"):
+                    webpage_url = self.root + webpage_url
+                
+                file_data = self._extract_file(webpage_url)
+                info = split_html(item_html)
+
+                if not file_data.get("name"):
+                    file_data["name"] = info[-3]
+                
+                yield MockMessage.Url, file_data, {}
+            except Exception as exc:
+                self.log.error("%s: %s", exc.__class__.__name__, exc)
+
+    def _extract_file(self, webpage_url):
+        page = self.request(webpage_url).text
+        data_id = extr(page, 'data-file-id="', '"')
+        referer = self.root_dl + "/file/" + data_id
+        headers = {"Referer": referer, "Origin": self.root_dl}
+        data = self.request_json(self.endpoint, method="POST", headers=headers, json={"id": data_id})
+        
+        file_url = decrypt_xor(data["url"], f"SECRET_KEY_{data['timestamp'] // 3600}".encode()) if data.get("encrypted") else data["url"]
+        file_name = extr(page, "<h1", "<").rpartition(">")[2]
+
+        return {
+            "url": file_url, 
+            "name": unescape(file_name), 
+            "_http_headers": {"Referer": referer}
+        }
+
+class BunkrMediaExtractor(BunkrAlbumExtractor):
+    pattern = re.compile(BASE_PATTERN_BUNKR + r"(/[fvid]/[^/?#]+)")
+    def items(self):
+        try:
+            media_path = self.groups[-1]
+            file_data = self._extract_file(self.root + media_path)
+            album_data = {"album_name": file_data.get("name", "bunkr_media"), "count": 1}
+
+            yield MockMessage.Directory, album_data, {}
+            yield MockMessage.Url, file_data, {}
+
+        except Exception as exc:
+            self.log.error("%s: %s", exc.__class__.__name__, exc)
+            yield MockMessage.Directory, {"album_name": "error", "count": 0}, {}
+
+# ==============================================================================
+# --- PUBLIC API FOR THE GUI ---
+# ==============================================================================
+
+def get_bunkr_extractor(url, logger):
+    """Selects the correct Bunkr extractor based on the URL pattern."""
+    if BunkrAlbumExtractor.pattern.match(url):
+        logger.info("Bunkr Album URL detected.")
+        return BunkrAlbumExtractor.from_url(url, logger)
+    elif BunkrMediaExtractor.pattern.match(url):
+        logger.info("Bunkr Media URL detected.")
+        return BunkrMediaExtractor.from_url(url, logger)
+    else:
+        logger.error(f"No suitable Bunkr extractor found for URL: {url}")
+        return None
+
+def fetch_bunkr_data(url, logger):
+    """
+    Main function to be called from the GUI.
+    It extracts all file information from a Bunkr URL.
+    
+    Returns:
+        A tuple of (album_name, list_of_files)
+        - album_name (str): The name of the album.
+        - list_of_files (list): A list of dicts, each containing 'url', 'name', and '_http_headers'.
+        Returns (None, None) on failure.
+    """
+    extractor = get_bunkr_extractor(url, logger)
+    if not extractor:
+        return None, None
+
+    try:
+        album_name = "default_bunkr_album"
+        files_to_download = []
+        for msg_type, data, metadata in extractor:
+            if msg_type == MockMessage.Directory:
+                raw_album_name = data.get('album_name', 'untitled')
+                album_name = re.sub(r'[<>:"/\\|?*]', '_', raw_album_name).strip() or "untitled"
+                logger.info(f"Processing Bunkr album: {album_name}")
+            elif msg_type == MockMessage.Url:
+                # data here is the file_data dictionary
+                files_to_download.append(data)
+        
+        if not files_to_download:
+            logger.warning("No files found to download from the Bunkr URL.")
+            return None, None
+            
+        return album_name, files_to_download
+    
+    except Exception as e:
+        logger.error(f"An error occurred while extracting Bunkr info: {e}", exc_info=True)
+        return None, None

src/core/discord_client.py

@@ -1,63 +1,70 @@
 import time
-import requests
+import cloudscraper
 import json
-from urllib.parse import urlparse
 
-def fetch_server_channels(server_id, logger, cookies=None, cancellation_event=None, pause_event=None):
+def fetch_server_channels(server_id, logger=print, cookies_dict=None):
     """
-    Fetches the list of channels for a given Discord server ID from the Kemono API.
-    UPDATED to be pausable and cancellable.
+    Fetches all channels for a given Discord server ID from the API.
+    Uses cloudscraper to bypass Cloudflare.
     """
-    domains_to_try = ["kemono.cr", "kemono.su"]
-    for domain in domains_to_try:
-        if cancellation_event and cancellation_event.is_set():
-            logger("   Channel fetching cancelled by user.")
-            return None
-        while pause_event and pause_event.is_set():
-            if cancellation_event and cancellation_event.is_set(): break
-            time.sleep(0.5)
+    api_url = f"https://kemono.cr/api/v1/discord/server/{server_id}"
+    logger(f"   Fetching channels for server: {api_url}")
 
-        lookup_url = f"https://{domain}/api/v1/discord/channel/lookup/{server_id}"
-        logger(f"   Attempting to fetch channel list from: {lookup_url}")
-        try:
-            response = requests.get(lookup_url, cookies=cookies, timeout=15)
-            response.raise_for_status()
-            channels = response.json()
-            if isinstance(channels, list):
-                logger(f"   ✅ Found {len(channels)} channels for server {server_id}.")
-                return channels
-        except (requests.exceptions.RequestException, json.JSONDecodeError):
-            # This is a silent failure, we'll just try the next domain
-            pass
-            
-    logger(f"   ❌ Failed to fetch channel list for server {server_id} from all available domains.")
-    return None
+    scraper = cloudscraper.create_scraper()
+    headers = {
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',
+        'Referer': f'https://kemono.cr/discord/server/{server_id}',
+        'Accept': 'text/css'
+    }
 
-def fetch_channel_messages(channel_id, logger, cancellation_event, pause_event, cookies=None):
+    try:
+        response = scraper.get(api_url, headers=headers, cookies=cookies_dict, timeout=30)
+        response.raise_for_status()
+        channels = response.json()
+        if isinstance(channels, list):
+            logger(f"   ✅ Found {len(channels)} channels for server {server_id}.")
+            return channels
+        return None
+    except Exception as e:
+        logger(f"   ❌ Error fetching server channels for {server_id}: {e}")
+        return None
+
+def fetch_channel_messages(channel_id, logger=print, cancellation_event=None, pause_event=None, cookies_dict=None):
     """
-    Fetches all messages from a Discord channel by looping through API pages (pagination).
-    Uses a page size of 150 and handles the specific offset logic.
+    A generator that fetches all messages for a specific Discord channel, handling pagination.
+    Uses cloudscraper and proper headers to bypass server protection.
     """
-    offset = 0
-    page_size = 150 # Corrected page size based on your findings
-    api_base_url = f"https://kemono.cr/api/v1/discord/channel/{channel_id}"
+    scraper = cloudscraper.create_scraper()
+    base_url = f"https://kemono.cr/api/v1/discord/channel/{channel_id}"
+    headers = {
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',
+        'Referer': f'https://kemono.cr/discord/channel/{channel_id}',
+        'Accept': 'text/css'
+    }
     
-    while not (cancellation_event and cancellation_event.is_set()):
-        if pause_event and pause_event.is_set():
-            logger("   Message fetching paused...")
-            while pause_event.is_set():
-                if cancellation_event and cancellation_event.is_set(): break
-                time.sleep(0.5)
-            logger("   Message fetching resumed.")
+    offset = 0
+    # --- FIX: Corrected the page size for Discord API pagination ---
+    page_size = 150 
+    # --- END FIX ---
 
+    while True:
         if cancellation_event and cancellation_event.is_set():
+            logger("   Discord message fetching cancelled.")
             break
-            
-        paginated_url = f"{api_base_url}?o={offset}"
+        if pause_event and pause_event.is_set():
+            logger("   Discord message fetching paused...")
+            while pause_event.is_set():
+                if cancellation_event and cancellation_event.is_set():
+                    break
+                time.sleep(0.5)
+            if not (cancellation_event and cancellation_event.is_set()):
+                logger("   Discord message fetching resumed.")
+
+        paginated_url = f"{base_url}?o={offset}"
         logger(f"   Fetching messages from API: page starting at offset {offset}")
 
         try:
-            response = requests.get(paginated_url, cookies=cookies, timeout=20)
+            response = scraper.get(paginated_url, headers=headers, cookies=cookies_dict, timeout=30)
             response.raise_for_status()
             messages_batch = response.json()
 
@@ -73,8 +80,11 @@ def fetch_channel_messages(channel_id, logger, cancellation_event, pause_event,
                 break
 
             offset += page_size
-            time.sleep(0.5)
+            time.sleep(0.5) # Be respectful to the API
 
-        except (requests.exceptions.RequestException, json.JSONDecodeError) as e:
+        except (cloudscraper.exceptions.CloudflareException, json.JSONDecodeError) as e:
             logger(f"   ❌ Error fetching messages at offset {offset}: {e}")
-            break
+            break
+        except Exception as e:
+            logger(f"   ❌ An unexpected error occurred while fetching messages: {e}")
+            break

src/core/erome_client.py

@@ -0,0 +1,147 @@
+# src/core/erome_client.py
+
+import os
+import re
+import html
+import time
+import urllib.parse
+import requests
+from datetime import datetime
+
+# #############################################################################
+# SECTION: Utility functions adapted from the original script
+# #############################################################################
+
+def extr(txt, begin, end, default=""):
+    """Stripped-down version of 'extract()' to find text between two delimiters."""
+    try:
+        first = txt.index(begin) + len(begin)
+        return txt[first:txt.index(end, first)]
+    except (ValueError, IndexError):
+        return default
+
+def extract_iter(txt, begin, end):
+    """Yields all occurrences of text between two delimiters."""
+    try:
+        index = txt.index
+        lbeg = len(begin)
+        lend = len(end)
+        pos = 0
+        while True:
+            first = index(begin, pos) + lbeg
+            last = index(end, first)
+            pos = last + lend
+            yield txt[first:last]
+    except (ValueError, IndexError):
+        return
+
+def nameext_from_url(url):
+    """Extracts filename and extension from a URL."""
+    data = {}
+    filename = urllib.parse.unquote(url.partition("?")[0].rpartition("/")[2])
+    name, _, ext = filename.rpartition(".")
+    if name and len(ext) <= 16:
+        data["filename"], data["extension"] = name, ext.lower()
+    else:
+        data["filename"], data["extension"] = filename, ""
+    return data
+
+def parse_timestamp(ts, default=None):
+    """Creates a datetime object from a Unix timestamp."""
+    try:
+        # Use fromtimestamp for simplicity and compatibility
+        return datetime.fromtimestamp(int(ts))
+    except (ValueError, TypeError):
+        return default
+
+# #############################################################################
+# SECTION: Main Erome Fetching Logic
+# #############################################################################
+
+def fetch_erome_data(url, logger):
+    """
+    Identifies and extracts all media files from an Erome album URL.
+
+    Args:
+        url (str): The Erome album URL (e.g., https://www.erome.com/a/albumID).
+        logger (function): A function to log progress messages.
+
+    Returns:
+        tuple: A tuple containing (album_folder_name, list_of_file_dicts).
+               Returns (None, []) if data extraction fails.
+    """
+    album_id_match = re.search(r"/a/(\w+)", url)
+    if not album_id_match:
+        logger(f"Error: The URL '{url}' does not appear to be a valid Erome album link.")
+        return None, []
+
+    album_id = album_id_match.group(1)
+    page_url = f"https://www.erome.com/a/{album_id}"
+    
+    session = requests.Session()
+    session.headers.update({
+        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36",
+        "Referer": "https://www.erome.com/"
+    })
+
+    try:
+        logger(f"   Fetching Erome album page: {page_url}")
+        # Add a loop to handle "Please wait" pages
+        for attempt in range(5):
+            response = session.get(page_url, timeout=30)
+            response.raise_for_status()
+            page_content = response.text
+            if "<title>Please wait a few moments</title>" in page_content:
+                logger(f"   Cloudflare check detected. Waiting 5 seconds... (Attempt {attempt + 1}/5)")
+                time.sleep(5)
+                continue
+            break
+        else:
+            logger("   Error: Could not bypass Cloudflare check after several attempts.")
+            return None, []
+
+        title = html.unescape(extr(page_content, 'property="og:title" content="', '"'))
+        user = urllib.parse.unquote(extr(page_content, 'href="https://www.erome.com/', '"', default="unknown_user"))
+        
+        # Sanitize title and user for folder creation
+        sanitized_title = re.sub(r'[<>:"/\\|?*]', '_', title).strip()
+        sanitized_user = re.sub(r'[<>:"/\\|?*]', '_', user).strip()
+        
+        album_folder_name = f"Erome - {sanitized_user} - {sanitized_title} [{album_id}]"
+        
+        urls = []
+        # Split the page content by media groups to find all videos
+        media_groups = page_content.split('<div class="media-group"')
+        for group in media_groups[1:]: # Skip the part before the first media group
+            # Prioritize <source> tag, fall back to data-src for images
+            video_url = extr(group, '<source src="', '"') or extr(group, 'data-src="', '"')
+            if video_url:
+                urls.append(video_url)
+
+        if not urls:
+            logger("   Warning: No media URLs found on the album page.")
+            return album_folder_name, []
+
+        logger(f"   Found {len(urls)} media files in album '{title}'.")
+        
+        file_list = []
+        for i, file_url in enumerate(urls, 1):
+            filename_info = nameext_from_url(file_url)
+            # Create a clean, descriptive filename
+            filename = f"{album_id}_{sanitized_title}_{i:03d}.{filename_info.get('extension', 'mp4')}"
+            
+            file_data = {
+                "url": file_url,
+                "filename": filename,
+                "headers": {"Referer": page_url},
+            }
+            file_list.append(file_data)
+            
+        return album_folder_name, file_list
+
+    except requests.exceptions.RequestException as e:
+        logger(f"   Error fetching Erome page: {e}")
+        return None, []
+    except Exception as e:
+        logger(f"   An unexpected error occurred during Erome extraction: {e}")
+        return None, []

src/core/nhentai_client.py

@@ -0,0 +1,45 @@
+import requests
+import cloudscraper
+import json
+
+def fetch_nhentai_gallery(gallery_id, logger=print):
+    """
+    Fetches the metadata for a single nhentai gallery using cloudscraper to bypass Cloudflare.
+
+    Args:
+        gallery_id (str or int): The ID of the nhentai gallery.
+        logger (function): A function to log progress and error messages.
+
+    Returns:
+        dict: A dictionary containing the gallery's metadata if successful, otherwise None.
+    """
+    api_url = f"https://nhentai.net/api/gallery/{gallery_id}"
+    
+    # Create a cloudscraper instance
+    scraper = cloudscraper.create_scraper()
+    
+    logger(f"   Fetching nhentai gallery metadata from: {api_url}")
+
+    try:
+        # Use the scraper to make the GET request
+        response = scraper.get(api_url, timeout=20)
+        
+        if response.status_code == 404:
+            logger(f"   ❌ Gallery not found (404): ID {gallery_id}")
+            return None
+            
+        response.raise_for_status()
+
+        gallery_data = response.json()
+        
+        if "id" in gallery_data and "media_id" in gallery_data and "images" in gallery_data:
+            logger(f"   ✅ Successfully fetched metadata for '{gallery_data['title']['english']}'")
+            gallery_data['pages'] = gallery_data.pop('images')['pages']
+            return gallery_data
+        else:
+            logger("   ❌ API response is missing essential keys (id, media_id, or images).")
+            return None
+
+    except Exception as e:
+        logger(f"   ❌ An error occurred while fetching gallery {gallery_id}: {e}")
+        return None

src/core/saint2_client.py

@@ -0,0 +1,173 @@
+# src/core/saint2_client.py
+
+import os
+import re as re_module
+import html
+import urllib.parse
+import requests
+
+# ##############################################################################
+# SECTION: Utility functions adapted from the original script
+# ##############################################################################
+
+PATTERN_CACHE = {}
+
+def re(pattern):
+    """Compile a regular expression pattern and cache it."""
+    try:
+        return PATTERN_CACHE[pattern]
+    except KeyError:
+        p = PATTERN_CACHE[pattern] = re_module.compile(pattern)
+        return p
+
+def extract_from(txt, pos=None, default=""):
+    """Returns a function that extracts text between two delimiters from 'txt'."""
+    def extr(begin, end, index=txt.find, txt=txt):
+        nonlocal pos
+        try:
+            start_pos = pos if pos is not None else 0
+            first = index(begin, start_pos) + len(begin)
+            last = index(end, first)
+            if pos is not None:
+                pos = last + len(end)
+            return txt[first:last]
+        except (ValueError, IndexError):
+            return default
+    return extr
+
+def nameext_from_url(url):
+    """Extract filename and extension from a URL."""
+    data = {}
+    filename = urllib.parse.unquote(url.partition("?")[0].rpartition("/")[2])
+    name, _, ext = filename.rpartition(".")
+    if name and len(ext) <= 16:
+        data["filename"], data["extension"] = name, ext.lower()
+    else:
+        data["filename"], data["extension"] = filename, ""
+    return data
+
+# ##############################################################################
+# SECTION: Extractor Logic adapted for the main application
+# ##############################################################################
+
+class BaseExtractor:
+    """A simplified base class for extractors."""
+    def __init__(self, match, session, logger):
+        self.match = match
+        self.groups = match.groups()
+        self.session = session
+        self.log = logger
+
+    def request(self, url, **kwargs):
+        """Makes an HTTP request using the session."""
+        try:
+            response = self.session.get(url, **kwargs)
+            response.raise_for_status()
+            return response
+        except requests.exceptions.RequestException as e:
+            self.log(f"Error making request to {url}: {e}")
+            return None
+
+class SaintAlbumExtractor(BaseExtractor):
+    """Extractor for saint.su albums."""
+    root = "https://saint2.su"
+    pattern = re(r"(?:https?://)?saint\d*\.(?:su|pk|cr|to)/a/([^/?#]+)")
+
+    def items(self):
+        """Generator that yields all files from an album."""
+        album_id = self.groups[0]
+        response = self.request(f"{self.root}/a/{album_id}")
+        if not response:
+            return None, []
+
+        extr = extract_from(response.text)
+        title = extr("<title>", "<").rpartition(" - ")[0]
+        self.log(f"Downloading album: {title}")
+
+        files_html = re_module.findall(r'<a class="image".*?</a>', response.text, re_module.DOTALL)
+        file_list = []
+        for i, file_html in enumerate(files_html, 1):
+            file_extr = extract_from(file_html)
+            file_url = html.unescape(file_extr("onclick=\"play('", "'"))
+            if not file_url:
+                continue
+
+            filename_info = nameext_from_url(file_url)
+            filename = f"{filename_info['filename']}.{filename_info['extension']}"
+
+            file_data = {
+                "url": file_url,
+                "filename": filename,
+                "headers": {"Referer": response.url},
+            }
+            file_list.append(file_data)
+        
+        return title, file_list
+
+class SaintMediaExtractor(BaseExtractor):
+    """Extractor for single saint.su media links."""
+    root = "https://saint2.su"
+    pattern = re(r"(?:https?://)?saint\d*\.(?:su|pk|cr|to)(/(embe)?d/([^/?#]+))")
+
+    def items(self):
+        """Generator that yields the single file from a media page."""
+        path, embed, media_id = self.groups
+        url = self.root + path
+        response = self.request(url)
+        if not response:
+            return None, []
+
+        extr = extract_from(response.text)
+        file_url = ""
+        title = extr("<title>", "<").rpartition(" - ")[0] or media_id
+
+        if embed:  # /embed/ link
+            file_url = html.unescape(extr('<source src="', '"'))
+        else:  # /d/ link
+            file_url = html.unescape(extr('<a href="', '"'))
+
+        if not file_url:
+            self.log("Could not find video URL on the page.")
+            return title, []
+
+        filename_info = nameext_from_url(file_url)
+        filename = f"{filename_info['filename'] or media_id}.{filename_info['extension'] or 'mp4'}"
+
+        file_data = {
+            "url": file_url,
+            "filename": filename,
+            "headers": {"Referer": response.url}
+        }
+        
+        return title, [file_data]
+
+
+def fetch_saint2_data(url, logger):
+    """
+    Identifies the correct extractor for a saint2.su URL and returns the data.
+    
+    Args:
+        url (str): The saint2.su URL.
+        logger (function): A function to log progress messages.
+        
+    Returns:
+        tuple: A tuple containing (album_title, list_of_file_dicts).
+               Returns (None, []) if no data could be fetched.
+    """
+    extractors = [SaintMediaExtractor, SaintAlbumExtractor]
+    session = requests.Session()
+    session.headers.update({
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
+    })
+
+    for extractor_cls in extractors:
+        match = extractor_cls.pattern.match(url)
+        if match:
+            extractor = extractor_cls(match, session, logger)
+            album_title, files = extractor.items()
+            # Sanitize the album title to be a valid folder name
+            sanitized_title = re_module.sub(r'[<>:"/\\|?*]', '_', album_title) if album_title else "saint2_download"
+            return sanitized_title, files
+
+    logger(f"Error: The URL '{url}' does not match a known saint2 pattern.")
+    return None, []

src/core/workers.py

@@ -15,6 +15,8 @@ from concurrent.futures import ThreadPoolExecutor, as_completed, CancelledError,
 from io import BytesIO
 from urllib .parse import urlparse 
 import requests
+import cloudscraper 
+
 try:
     from PIL import Image
 except ImportError:
@@ -58,18 +60,13 @@ def robust_clean_name(name):
     """A more robust function to remove illegal characters for filenames and folders."""
     if not name:
         return ""
-    # Removes illegal characters for Windows, macOS, and Linux: < > : " / \ | ? *
-    # Also removes control characters (ASCII 0-31) which are invisible but invalid.
-    illegal_chars_pattern = r'[\x00-\x1f<>:"/\\|?*]'
+    illegal_chars_pattern = r'[\x00-\x1f<>:"/\\|?*\']'
     cleaned_name = re.sub(illegal_chars_pattern, '', name)
-    
-    # Remove leading/trailing spaces or periods, which can cause issues.
+
     cleaned_name = cleaned_name.strip(' .')
-    
-    # If the name is empty after cleaning (e.g., it was only illegal chars),
-    # provide a safe fallback name.
+
     if not cleaned_name:
-        return "untitled_folder" # Or "untitled_file" depending on context
+        return "untitled_folder"
     return cleaned_name
 
 class PostProcessorSignals (QObject ):
@@ -271,7 +268,9 @@ class PostProcessorWorker:
 
         file_download_headers = {
             'User-Agent': 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)',
-            'Referer': post_page_url
+            'Referer': post_page_url,
+            'Accept': 'text/css'
+
         }
 
         file_url = file_info.get('url')
@@ -429,8 +428,26 @@ class PostProcessorWorker:
                     self.logger(f"⚠️ Manga mode: Generated filename was empty. Using generic fallback: '{filename_to_save_in_main_path}'.")
                     was_original_name_kept_flag = False
             else:
-                filename_to_save_in_main_path = cleaned_original_api_filename
-                was_original_name_kept_flag = True
+                is_url_like = 'http' in api_original_filename.lower()
+                is_too_long = len(cleaned_original_api_filename) > 100
+
+                if is_url_like or is_too_long:
+                    self.logger(f"   ⚠️ Original filename is a URL or too long. Generating a shorter name.")
+                    name_hash = hashlib.md5(api_original_filename.encode()).hexdigest()[:12]
+                    _, ext = os.path.splitext(cleaned_original_api_filename)
+                    if not ext:
+                        try:
+                            path = urlparse(api_original_filename).path
+                            ext = os.path.splitext(path)[1] or ".file"
+                        except Exception:
+                            ext = ".file"
+
+                    cleaned_post_title = robust_clean_name(post_title.strip() if post_title else "post")[:40]
+                    filename_to_save_in_main_path = f"{cleaned_post_title}_{name_hash}{ext}"
+                    was_original_name_kept_flag = False
+                else:
+                    filename_to_save_in_main_path = cleaned_original_api_filename
+                    was_original_name_kept_flag = True
 
             if self.remove_from_filename_words_list and filename_to_save_in_main_path:
                 base_name_for_removal, ext_for_removal = os.path.splitext(filename_to_save_in_main_path)
@@ -854,9 +871,7 @@ class PostProcessorWorker:
                 return 0, 1, filename_to_save_in_main_path, was_original_name_kept_flag, FILE_DOWNLOAD_STATUS_FAILED_RETRYABLE_LATER, details_for_failure
 
     def process(self):
-        # --- START: REFACTORED PROCESS METHOD ---
 
-        # 1. DATA MAPPING: Map Discord Message or Creator Post fields to a consistent set of variables.
         if self.service == 'discord':
             # For Discord, self.post is a MESSAGE object from the API.
             post_title = self.post.get('content', '') or f"Message {self.post.get('id', 'N/A')}"
@@ -885,19 +900,26 @@ class PostProcessorWorker:
         )
 
         if content_is_needed and self.post.get('content') is None and self.service != 'discord':
+
             self.logger(f"   Post {post_id} is missing 'content' field, fetching full data...")
             parsed_url = urlparse(self.api_url_input)
             api_domain = parsed_url.netloc
-            headers = {'User-Agent': 'Mozilla/5.0'}
+            creator_page_url = f"https://{api_domain}/{self.service}/user/{self.user_id}"
+            headers = {
+                'User-Agent': 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)',
+                'Referer': creator_page_url,
+                'Accept': 'text/css'
+
+                }
+
+        
             cookies = prepare_cookies_for_request(self.use_cookie, self.cookie_text, self.selected_cookie_file, self.app_base_dir, self.logger, target_domain=api_domain)
 
             full_post_data = fetch_single_post_data(api_domain, self.service, self.user_id, post_id, headers, self.logger, cookies_dict=cookies)
             
             if full_post_data:
                 self.logger("   ✅ Full post data fetched successfully.")
-                # Update the worker's post object with the complete data
                 self.post = full_post_data
-                # Re-initialize local variables from the new, complete post data
                 post_title = self.post.get('title', '') or 'untitled_post'
                 post_main_file_info = self.post.get('file')
                 post_attachments = self.post.get('attachments', [])
@@ -905,9 +927,7 @@ class PostProcessorWorker:
                 post_data = self.post
             else:
                 self.logger(f"   ⚠️ Failed to fetch full content for post {post_id}. Content-dependent features may not work for this post.")
-        # --- END FIX ---
 
-        # 2. SHARED PROCESSING LOGIC: The rest of the function now uses the consistent variables from above.
         result_tuple = (0, 0, [], [], [], None, None)
         total_downloaded_this_post = 0
         total_skipped_this_post = 0
@@ -936,7 +956,11 @@ class PostProcessorWorker:
             else:
                 post_page_url = f"https://{parsed_api_url.netloc}/{self.service}/user/{self.user_id}/post/{post_id}"
 
-            headers = {'User-Agent': 'Mozilla/5.0', 'Referer': post_page_url, 'Accept': '*/*'}
+            headers = {
+                'User-Agent': 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)',
+                'Referer': post_page_url, 
+                'Accept': 'text/css'
+                }
             link_pattern = re.compile(r"""<a\s+.*?href=["'](https?://[^"']+)["'][^>]*>(.*?)</a>""", re.IGNORECASE | re.DOTALL)
             
             effective_unwanted_keywords_for_folder_naming = self.unwanted_keywords.copy()

src/services/drive_downloader.py

@@ -5,9 +5,12 @@ import traceback
 import json
 import base64
 import time
+import zipfile
 from urllib.parse import urlparse, urlunparse, parse_qs, urlencode
 
+# --- Third-party Library Imports ---
 import requests
+import cloudscraper
 
 try:
     from Crypto.Cipher import AES
@@ -26,12 +29,12 @@ MEGA_API_URL = "https://g.api.mega.co.nz"
 def _get_filename_from_headers(headers):
     """
     Extracts a filename from the Content-Disposition header.
-    (This is from your original file and is kept for Dropbox downloads)
     """
     cd = headers.get('content-disposition')
     if not cd:
         return None
     
+    # Handles both filename="file.zip" and filename*=UTF-8''file%20name.zip
     fname_match = re.findall('filename="?([^"]+)"?', cd)
     if fname_match:
         sanitized_name = re.sub(r'[<>:"/\\|?*]', '_', fname_match[0].strip())
@@ -39,28 +42,23 @@ def _get_filename_from_headers(headers):
         
     return None
 
-# --- NEW: Helper functions for Mega decryption ---
+# --- Helper functions for Mega decryption ---
 
 def urlb64_to_b64(s):
-    """Converts a URL-safe base64 string to a standard base64 string."""
     s = s.replace('-', '+').replace('_', '/')
     s += '=' * (-len(s) % 4)
     return s
 
 def b64_to_bytes(s):
-    """Decodes a URL-safe base64 string to bytes."""
     return base64.b64decode(urlb64_to_b64(s))
 
 def bytes_to_hex(b):
-    """Converts bytes to a hex string."""
     return b.hex()
 
 def hex_to_bytes(h):
-    """Converts a hex string to bytes."""
     return bytes.fromhex(h)
 
 def hrk2hk(hex_raw_key):
-    """Derives the final AES key from the raw key components for Mega."""
     key_part1 = int(hex_raw_key[0:16], 16)
     key_part2 = int(hex_raw_key[16:32], 16)
     key_part3 = int(hex_raw_key[32:48], 16)
@@ -72,23 +70,20 @@ def hrk2hk(hex_raw_key):
     return f'{final_key_part1:016x}{final_key_part2:016x}'
 
 def decrypt_at(at_b64, key_bytes):
-    """Decrypts the 'at' attribute to get file metadata."""
     at_bytes = b64_to_bytes(at_b64)
     iv = b'\0' * 16
     cipher = AES.new(key_bytes, AES.MODE_CBC, iv)
     decrypted_at = cipher.decrypt(at_bytes)
     return decrypted_at.decode('utf-8').strip('\0').replace('MEGA', '')
 
-# --- NEW: Core Logic for Mega Downloads ---
+# --- Core Logic for Mega Downloads ---
 
 def get_mega_file_info(file_id, file_key, session, logger_func):
-    """Fetches file metadata and the temporary download URL from the Mega API."""
     try:
         hex_raw_key = bytes_to_hex(b64_to_bytes(file_key))
         hex_key = hrk2hk(hex_raw_key)
         key_bytes = hex_to_bytes(hex_key)
 
-        # Request file attributes
         payload = [{"a": "g", "p": file_id}]
         response = session.post(f"{MEGA_API_URL}/cs", json=payload, timeout=20)
         response.raise_for_status()
@@ -100,13 +95,10 @@ def get_mega_file_info(file_id, file_key, session, logger_func):
 
         file_size = res_json[0]['s']
         at_b64 = res_json[0]['at']
-
-        # Decrypt attributes to get the file name
         at_dec_json_str = decrypt_at(at_b64, key_bytes)
         at_dec_json = json.loads(at_dec_json_str)
         file_name = at_dec_json['n']
 
-        # Request the temporary download URL
         payload = [{"a": "g", "g": 1, "p": file_id}]
         response = session.post(f"{MEGA_API_URL}/cs", json=payload, timeout=20)
         response.raise_for_status()
@@ -124,19 +116,16 @@ def get_mega_file_info(file_id, file_key, session, logger_func):
         return None
 
 def download_and_decrypt_mega_file(info, download_path, logger_func):
-    """Downloads the file and decrypts it chunk by chunk, reporting progress."""
     file_name = info['file_name']
     file_size = info['file_size']
     dl_url = info['dl_url']
     hex_raw_key = info['hex_raw_key']
-
     final_path = os.path.join(download_path, file_name)
 
     if os.path.exists(final_path) and os.path.getsize(final_path) == file_size:
         logger_func(f"   [Mega] ℹ️ File '{file_name}' already exists with the correct size. Skipping.")
         return
 
-    # Prepare for decryption
     key = hex_to_bytes(hrk2hk(hex_raw_key))
     iv_hex = hex_raw_key[32:48] + '0000000000000000'
     iv_bytes = hex_to_bytes(iv_hex)
@@ -150,13 +139,11 @@ def download_and_decrypt_mega_file(info, download_path, logger_func):
             
             with open(final_path, 'wb') as f:
                 for chunk in r.iter_content(chunk_size=8192):
-                    if not chunk:
-                        continue
+                    if not chunk: continue
                     decrypted_chunk = cipher.decrypt(chunk)
                     f.write(decrypted_chunk)
                     downloaded_bytes += len(chunk)
                     
-                    # Log progress every second
                     current_time = time.time()
                     if current_time - last_log_time > 1:
                         progress_percent = (downloaded_bytes / file_size) * 100 if file_size > 0 else 0
@@ -164,28 +151,16 @@ def download_and_decrypt_mega_file(info, download_path, logger_func):
                         last_log_time = current_time
         
         logger_func(f"   [Mega] ✅ Successfully downloaded '{file_name}' to '{download_path}'")
-    except requests.RequestException as e:
-        logger_func(f"   [Mega] ❌ Download failed for '{file_name}': {e}")
-    except IOError as e:
-        logger_func(f"   [Mega] ❌ Could not write to file '{final_path}': {e}")
     except Exception as e:
         logger_func(f"   [Mega] ❌ An unexpected error occurred during download/decryption: {e}")
 
-
-# --- REPLACEMENT Main Service Downloader Function for Mega ---
-
 def download_mega_file(mega_url, download_path, logger_func=print):
-    """
-    Downloads a file from a Mega.nz URL using direct requests and decryption.
-    This replaces the old mega.py implementation.
-    """
     if not PYCRYPTODOME_AVAILABLE:
         logger_func("❌ Mega download failed: 'pycryptodome' library is not installed. Please run: pip install pycryptodome")
         return
 
     logger_func(f"   [Mega] Initializing download for: {mega_url}")
     
-    # Regex to capture file ID and key from both old and new URL formats
     match = re.search(r'mega(?:\.co)?\.nz/(?:file/|#!)?([a-zA-Z0-9]+)(?:#|!)([a-zA-Z0-9_.-]+)', mega_url)
     if not match:
         logger_func(f"   [Mega] ❌ Error: Invalid Mega URL format.")
@@ -199,18 +174,14 @@ def download_mega_file(mega_url, download_path, logger_func=print):
     
     file_info = get_mega_file_info(file_id, file_key, session, logger_func)
     if not file_info:
-        logger_func(f"   [Mega] ❌ Failed to get file info. The link may be invalid or expired. Aborting.")
+        logger_func(f"   [Mega] ❌ Failed to get file info. Aborting.")
         return
 
     logger_func(f"   [Mega] File found: '{file_info['file_name']}' (Size: {file_info['file_size'] / 1024 / 1024:.2f} MB)")
     
     download_and_decrypt_mega_file(file_info, download_path, logger_func)
 
-
-# --- ORIGINAL Functions for Google Drive and Dropbox (Unchanged) ---
-
 def download_gdrive_file(url, download_path, logger_func=print):
-    """Downloads a file from a Google Drive link."""
     if not GDRIVE_AVAILABLE:
         logger_func("❌ Google Drive download failed: 'gdown' library is not installed.")
         return
@@ -227,12 +198,15 @@ def download_gdrive_file(url, download_path, logger_func=print):
     except Exception as e:
         logger_func(f"   [G-Drive] ❌ An unexpected error occurred: {e}")
 
+# --- MODIFIED DROPBOX DOWNLOADER ---
 def download_dropbox_file(dropbox_link, download_path=".", logger_func=print):
     """
-    Downloads a file from a public Dropbox link by modifying the URL for direct download.
+    Downloads a file or a folder (as a zip) from a public Dropbox link.
+    Uses cloudscraper to handle potential browser checks and auto-extracts zip files.
     """
     logger_func(f"   [Dropbox] Attempting to download: {dropbox_link}")
     
+    # Modify URL to force download (works for both files and folders)
     parsed_url = urlparse(dropbox_link)
     query_params = parse_qs(parsed_url.query)
     query_params['dl'] = ['1']
@@ -241,26 +215,60 @@ def download_dropbox_file(dropbox_link, download_path=".", logger_func=print):
 
     logger_func(f"   [Dropbox] Using direct download URL: {direct_download_url}")
 
+    scraper = cloudscraper.create_scraper()
+
     try:
         if not os.path.exists(download_path):
             os.makedirs(download_path, exist_ok=True)
             logger_func(f"   [Dropbox] Created download directory: {download_path}")
 
-        with requests.get(direct_download_url, stream=True, allow_redirects=True, timeout=(10, 300)) as r:
+        with scraper.get(direct_download_url, stream=True, allow_redirects=True, timeout=(20, 600)) as r:
             r.raise_for_status()
             
-            filename = _get_filename_from_headers(r.headers) or os.path.basename(parsed_url.path) or "dropbox_file"
+            filename = _get_filename_from_headers(r.headers) or os.path.basename(parsed_url.path) or "dropbox_download"
+            # If it's a folder, Dropbox will name it FolderName.zip
+            if not os.path.splitext(filename)[1]:
+                 filename += ".zip"
+
             full_save_path = os.path.join(download_path, filename)
             
             logger_func(f"   [Dropbox] Starting download of '{filename}'...")
             
+            total_size = int(r.headers.get('content-length', 0))
+            downloaded_bytes = 0
+            last_log_time = time.time()
+
             with open(full_save_path, 'wb') as f:
                 for chunk in r.iter_content(chunk_size=8192):
                     f.write(chunk)
+                    downloaded_bytes += len(chunk)
+                    current_time = time.time()
+                    if total_size > 0 and current_time - last_log_time > 1:
+                        progress = (downloaded_bytes / total_size) * 100
+                        logger_func(f"      -> Downloading '{filename}'... {downloaded_bytes/1024/1024:.2f}MB / {total_size/1024/1024:.2f}MB ({progress:.1f}%)")
+                        last_log_time = current_time
                     
-            logger_func(f"   [Dropbox] ✅ Dropbox file downloaded successfully: {full_save_path}")
+            logger_func(f"   [Dropbox] ✅ Download complete: {full_save_path}")
+
+            # --- NEW: Auto-extraction logic ---
+            if zipfile.is_zipfile(full_save_path):
+                logger_func(f"   [Dropbox] ዚ Detected zip file. Attempting to extract...")
+                extract_folder_name = os.path.splitext(filename)[0]
+                extract_path = os.path.join(download_path, extract_folder_name)
+                os.makedirs(extract_path, exist_ok=True)
+                
+                with zipfile.ZipFile(full_save_path, 'r') as zip_ref:
+                    zip_ref.extractall(extract_path)
+                
+                logger_func(f"   [Dropbox] ✅ Successfully extracted to folder: '{extract_path}'")
+                
+                # Optional: remove the zip file after extraction
+                try:
+                    os.remove(full_save_path)
+                    logger_func(f"   [Dropbox] 🗑️ Removed original zip file.")
+                except OSError as e:
+                    logger_func(f"   [Dropbox] ⚠️ Could not remove original zip file: {e}")
 
     except Exception as e:
         logger_func(f"   [Dropbox] ❌ An error occurred during Dropbox download: {e}")
         traceback.print_exc(limit=2)
-        raise

src/services/updater.py

@@ -0,0 +1,125 @@
+import sys
+import os
+import requests
+import subprocess # Keep this for now, though it's not used in the final command
+from packaging.version import parse as parse_version
+from PyQt5.QtCore import QThread, pyqtSignal
+
+# Constants for the updater
+GITHUB_REPO_URL = "https://api.github.com/repos/Yuvi9587/Kemono-Downloader/releases/latest"
+EXE_NAME = "Kemono.Downloader.exe"
+
+class UpdateChecker(QThread):
+    """Checks for a new version on GitHub in a background thread."""
+    update_available = pyqtSignal(str, str)  # new_version, download_url
+    up_to_date = pyqtSignal(str)
+    update_error = pyqtSignal(str)
+
+    def __init__(self, current_version):
+        super().__init__()
+        self.current_version_str = current_version.lstrip('v')
+
+    def run(self):
+        try:
+            response = requests.get(GITHUB_REPO_URL, timeout=15)
+            response.raise_for_status()
+            data = response.json()
+
+            latest_version_str = data['tag_name'].lstrip('v')
+            current_version = parse_version(self.current_version_str)
+            latest_version = parse_version(latest_version_str)
+
+            if latest_version > current_version:
+                for asset in data.get('assets', []):
+                    if asset['name'] == EXE_NAME:
+                        self.update_available.emit(latest_version_str, asset['browser_download_url'])
+                        return
+                self.update_error.emit(f"Update found, but '{EXE_NAME}' is missing from the release assets.")
+            else:
+                self.up_to_date.emit("You are on the latest version.")
+
+        except requests.exceptions.RequestException as e:
+            self.update_error.emit(f"Network error: {e}")
+        except Exception as e:
+            self.update_error.emit(f"An error occurred: {e}")
+
+
+class UpdateDownloader(QThread):
+    """
+    Downloads the new executable and runs an updater script that kills the old process,
+    replaces the file, and displays a message in the terminal.
+    """
+    download_finished = pyqtSignal()
+    download_error = pyqtSignal(str)
+
+    def __init__(self, download_url, parent_app):
+        super().__init__()
+        self.download_url = download_url
+        self.parent_app = parent_app
+
+    def run(self):
+        try:
+            app_path = sys.executable
+            app_dir = os.path.dirname(app_path)
+            temp_path = os.path.join(app_dir, f"{EXE_NAME}.tmp")
+            old_path = os.path.join(app_dir, f"{EXE_NAME}.old")
+            updater_script_path = os.path.join(app_dir, "updater.bat")
+            
+            # --- NEW: Path for the PID file ---
+            pid_file_path = os.path.join(app_dir, "updater.pid")
+
+            # Download the new executable
+            with requests.get(self.download_url, stream=True, timeout=300) as r:
+                r.raise_for_status()
+                with open(temp_path, 'wb') as f:
+                    for chunk in r.iter_content(chunk_size=8192):
+                        f.write(chunk)
+
+            # --- NEW: Write the current Process ID to the pid file ---
+            with open(pid_file_path, "w") as f:
+                f.write(str(os.getpid()))
+
+            # --- NEW BATCH SCRIPT ---
+            # This script now reads the PID from the "updater.pid" file.
+            script_content = f"""
+@echo off
+SETLOCAL
+
+echo.
+echo Reading process information...
+set /p PID=<{pid_file_path}
+
+echo Closing the old application (PID: %PID%)...
+taskkill /F /PID %PID%
+
+echo Waiting for files to unlock...
+timeout /t 2 /nobreak > nul
+
+echo Replacing application files...
+if exist "{old_path}" del /F /Q "{old_path}"
+rename "{app_path}" "{os.path.basename(old_path)}"
+rename "{temp_path}" "{EXE_NAME}"
+
+echo.
+echo ============================================================
+echo      Update Complete!
+echo      You can now close this window and run {EXE_NAME}.
+echo ============================================================
+echo.
+pause
+
+echo Cleaning up helper files...
+del "{pid_file_path}"
+del "%~f0"
+ENDLOCAL
+"""
+            with open(updater_script_path, "w") as f:
+                f.write(script_content)
+
+            # --- Go back to the os.startfile command that we know works ---
+            os.startfile(updater_script_path)
+            
+            self.download_finished.emit()
+
+        except Exception as e:
+            self.download_error.emit(f"Failed to download or run updater: {e}")

src/ui/dialogs/FavoriteArtistsDialog.py

@@ -3,7 +3,7 @@ import html
 import re
 
 # --- Third-Party Library Imports ---
-import requests
+import cloudscraper # MODIFIED: Import cloudscraper
 from PyQt5.QtCore import QCoreApplication, Qt
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QLineEdit, QListWidget,
@@ -12,7 +12,6 @@ from PyQt5.QtWidgets import (
 
 # --- Local Application Imports ---
 from ...i18n.translator import get_translation
-# Corrected Import: Get the icon from the new assets utility module
 from ..assets import get_app_icon_object 
 from ...utils.network_utils import prepare_cookies_for_request
 from .CookieHelpDialog import CookieHelpDialog
@@ -41,9 +40,9 @@ class FavoriteArtistsDialog (QDialog ):
         service_lower = service_name.lower()
         coomer_primary_services = {'onlyfans', 'fansly', 'manyvids', 'candfans'}
         if service_lower in coomer_primary_services:
-            return "coomer.st"  # Use the new domain
+            return "coomer.st"
         else:
-            return "kemono.cr"   # Use the new domain
+            return "kemono.cr"
 
     def _tr (self ,key ,default_text =""):
         """Helper to get translation based on current app language."""
@@ -126,9 +125,11 @@ class FavoriteArtistsDialog (QDialog ):
         self .artist_list_widget .setVisible (show )
 
     def _fetch_favorite_artists (self ):
+        # --- FIX: Use cloudscraper and add proper headers ---
+        scraper = cloudscraper.create_scraper()
+        # --- END FIX ---
 
         if self.cookies_config['use_cookie']:
-            # --- Kemono Check with Fallback ---
             kemono_cookies = prepare_cookies_for_request(
                 True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
                 self.cookies_config['app_base_dir'], self._logger, target_domain="kemono.cr"
@@ -140,7 +141,6 @@ class FavoriteArtistsDialog (QDialog ):
                     self.cookies_config['app_base_dir'], self._logger, target_domain="kemono.su"
                 )
 
-            # --- Coomer Check with Fallback ---
             coomer_cookies = prepare_cookies_for_request(
                 True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
                 self.cookies_config['app_base_dir'], self._logger, target_domain="coomer.st"
@@ -153,28 +153,21 @@ class FavoriteArtistsDialog (QDialog ):
                 )
 
             if not kemono_cookies and not coomer_cookies:
-                # If cookies are enabled but none could be loaded, show help and stop.
                 self.status_label.setText(self._tr("fav_artists_cookies_required_status", "Error: Cookies enabled but could not be loaded for any source."))
                 self._logger("Error: Cookies enabled but no valid cookies were loaded. Showing help dialog.")
                 cookie_help_dialog = CookieHelpDialog(self.parent_app, self)
                 cookie_help_dialog.exec_()
                 self.download_button.setEnabled(False)
-                return  # Stop further execution
-
-        kemono_fav_url ="https://kemono.su/api/v1/account/favorites?type=artist"
-        coomer_fav_url ="https://coomer.su/api/v1/account/favorites?type=artist"
+                return
 
         self .all_fetched_artists =[]
         fetched_any_successfully =False 
         errors_occurred =[]
         any_cookies_loaded_successfully_for_any_source =False 
 
-        kemono_cr_fav_url = "https://kemono.cr/api/v1/account/favorites?type=artist"
-        coomer_st_fav_url = "https://coomer.st/api/v1/account/favorites?type=artist"
-
         api_sources = [
-            {"name": "Kemono.cr", "url": kemono_cr_fav_url, "domain": "kemono.cr"},
-            {"name": "Coomer.st", "url": coomer_st_fav_url, "domain": "coomer.st"}
+            {"name": "Kemono.cr", "url": "https://kemono.cr/api/v1/account/favorites?type=artist", "domain": "kemono.cr"},
+            {"name": "Coomer.st", "url": "https://coomer.st/api/v1/account/favorites?type=artist", "domain": "coomer.st"}
         ]
 
         for source in api_sources :
@@ -185,41 +178,36 @@ class FavoriteArtistsDialog (QDialog ):
             cookies_dict_for_source = None
             if self.cookies_config['use_cookie']:
                 primary_domain = source['domain']
-                fallback_domain = None
-                if primary_domain == "kemono.cr":
-                    fallback_domain = "kemono.su"
-                elif primary_domain == "coomer.st":
-                    fallback_domain = "coomer.su"
+                fallback_domain = "kemono.su" if "kemono" in primary_domain else "coomer.su"
 
-                # First, try the primary domain
                 cookies_dict_for_source = prepare_cookies_for_request(
-                    True,
-                    self.cookies_config['cookie_text'],
-                    self.cookies_config['selected_cookie_file'],
-                    self.cookies_config['app_base_dir'],
-                    self._logger,
-                    target_domain=primary_domain
+                    True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                    self.cookies_config['app_base_dir'], self._logger, target_domain=primary_domain
                 )
-
-                # If no cookies found, try the fallback domain
-                if not cookies_dict_for_source and fallback_domain:
-                    self._logger(f"Warning ({source['name']}): No cookies found for '{primary_domain}'. Trying fallback '{fallback_domain}'...")
+                if not cookies_dict_for_source:
+                    self._logger(f"Warning ({source['name']}): No cookies for '{primary_domain}'. Trying fallback '{fallback_domain}'...")
                     cookies_dict_for_source = prepare_cookies_for_request(
-                        True,
-                        self.cookies_config['cookie_text'],
-                        self.cookies_config['selected_cookie_file'],
-                        self.cookies_config['app_base_dir'],
-                        self._logger,
-                        target_domain=fallback_domain
+                        True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                        self.cookies_config['app_base_dir'], self._logger, target_domain=fallback_domain
                     )
                 
                 if cookies_dict_for_source:
                     any_cookies_loaded_successfully_for_any_source = True
                 else:
-                    self._logger(f"Warning ({source['name']}): Cookies enabled but could not be loaded for this source (including fallbacks). Fetch might fail.")
+                    self._logger(f"Warning ({source['name']}): Cookies enabled but not loaded for this source. Fetch may fail.")
             try :
-                headers ={'User-Agent':'Mozilla/5.0'}
-                response =requests .get (source ['url'],headers =headers ,cookies =cookies_dict_for_source ,timeout =20 )
+                # --- FIX: Add Referer and Accept headers ---
+                headers = {
+                    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',
+                    'Referer': f"https://{source['domain']}/favorites",
+                    'Accept': 'text/css'
+                }
+                # --- END FIX ---
+                
+                # --- FIX: Use scraper instead of requests ---
+                response = scraper.get(source['url'], headers=headers, cookies=cookies_dict_for_source, timeout=20)
+                # --- END FIX ---
+
                 response .raise_for_status ()
                 artists_data_from_api =response .json ()
 
@@ -254,15 +242,10 @@ class FavoriteArtistsDialog (QDialog ):
                     fetched_any_successfully =True 
                 self ._logger (f"Fetched {processed_artists_from_source } artists from {source ['name']}.")
 
-            except requests .exceptions .RequestException as e :
+            except Exception as e :
                 error_msg =f"Error fetching favorites from {source ['name']}: {e }"
                 self ._logger (error_msg )
                 errors_occurred .append (error_msg )
-            except Exception as e :
-                error_msg =f"An unexpected error occurred with {source ['name']}: {e }"
-                self ._logger (error_msg )
-                errors_occurred .append (error_msg )
-
 
         if self .cookies_config ['use_cookie']and not any_cookies_loaded_successfully_for_any_source :
             self .status_label .setText (self ._tr ("fav_artists_cookies_required_status","Error: Cookies enabled but could not be loaded for any source."))
@@ -288,7 +271,7 @@ class FavoriteArtistsDialog (QDialog ):
             self ._show_content_elements (True )
             self .download_button .setEnabled (True )
         elif not fetched_any_successfully and not errors_occurred :
-             self .status_label .setText (self ._tr ("fav_artists_none_found_status","No favorite artists found on Kemono.su or Coomer.su."))
+             self .status_label .setText (self ._tr ("fav_artists_none_found_status","No favorite artists found on Kemono or Coomer."))
              self ._show_content_elements (False )
              self .download_button .setEnabled (False )
         else :
@@ -344,4 +327,4 @@ class FavoriteArtistsDialog (QDialog ):
         self .accept ()
 
     def get_selected_artists (self ):
-        return self .selected_artists_data     
+        return self .selected_artists_data

src/ui/dialogs/FavoritePostsDialog.py

@@ -7,7 +7,7 @@ import traceback
 import json
 import re
 from collections import defaultdict
-import requests
+import cloudscraper # MODIFIED: Import cloudscraper
 from PyQt5.QtCore import QCoreApplication, Qt, pyqtSignal, QThread
 from PyQt5.QtWidgets import (
     QApplication, QDialog, QHBoxLayout, QLabel, QLineEdit, QListWidget,
@@ -42,10 +42,9 @@ class FavoritePostsFetcherThread (QThread ):
         self .parent_logger_func (f"[FavPostsFetcherThread] {message }")
 
     def run(self):
-        kemono_su_fav_posts_url = "https://kemono.su/api/v1/account/favorites?type=post"
-        coomer_su_fav_posts_url = "https://coomer.su/api/v1/account/favorites?type=post"
-        kemono_cr_fav_posts_url = "https://kemono.cr/api/v1/account/favorites?type=post"
-        coomer_st_fav_posts_url = "https://coomer.st/api/v1/account/favorites?type=post"
+        # --- FIX: Use cloudscraper and add proper headers ---
+        scraper = cloudscraper.create_scraper()
+        # --- END FIX ---
 
         all_fetched_posts_temp = []
         error_messages_for_summary = []
@@ -56,8 +55,8 @@ class FavoritePostsFetcherThread (QThread ):
         self.progress_bar_update.emit(0, 0)
 
         api_sources = [
-            {"name": "Kemono.cr", "url": kemono_cr_fav_posts_url, "domain": "kemono.cr"},
-            {"name": "Coomer.st", "url": coomer_st_fav_posts_url, "domain": "coomer.st"}
+            {"name": "Kemono.cr", "url": "https://kemono.cr/api/v1/account/favorites?type=post", "domain": "kemono.cr"},
+            {"name": "Coomer.st", "url": "https://coomer.st/api/v1/account/favorites?type=post", "domain": "coomer.st"}
         ]
 
         api_sources_to_try =[]
@@ -81,32 +80,18 @@ class FavoritePostsFetcherThread (QThread ):
             cookies_dict_for_source = None
             if self.cookies_config['use_cookie']:
                 primary_domain = source['domain']
-                fallback_domain = None
-                if primary_domain == "kemono.cr":
-                    fallback_domain = "kemono.su"
-                elif primary_domain == "coomer.st":
-                    fallback_domain = "coomer.su"
+                fallback_domain = "kemono.su" if "kemono" in primary_domain else "coomer.su"
 
-                # First, try the primary domain
                 cookies_dict_for_source = prepare_cookies_for_request(
-                    True,
-                    self.cookies_config['cookie_text'],
-                    self.cookies_config['selected_cookie_file'],
-                    self.cookies_config['app_base_dir'],
-                    self._logger,
-                    target_domain=primary_domain
+                    True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                    self.cookies_config['app_base_dir'], self._logger, target_domain=primary_domain
                 )
 
-                # If no cookies found, try the fallback domain
                 if not cookies_dict_for_source and fallback_domain:
-                    self._logger(f"Warning ({source['name']}): No cookies found for '{primary_domain}'. Trying fallback '{fallback_domain}'...")
+                    self._logger(f"Warning ({source['name']}): No cookies for '{primary_domain}'. Trying fallback '{fallback_domain}'...")
                     cookies_dict_for_source = prepare_cookies_for_request(
-                        True,
-                        self.cookies_config['cookie_text'],
-                        self.cookies_config['selected_cookie_file'],
-                        self.cookies_config['app_base_dir'],
-                        self._logger,
-                        target_domain=fallback_domain
+                        True, self.cookies_config['cookie_text'], self.cookies_config['selected_cookie_file'],
+                        self.cookies_config['app_base_dir'], self._logger, target_domain=fallback_domain
                     )
 
                 if cookies_dict_for_source:
@@ -120,8 +105,18 @@ class FavoritePostsFetcherThread (QThread ):
             QCoreApplication .processEvents ()
 
             try :
-                headers ={'User-Agent':'Mozilla/5.0'}
-                response =requests .get (source ['url'],headers =headers ,cookies =cookies_dict_for_source ,timeout =20 )
+                # --- FIX: Add Referer and Accept headers ---
+                headers = {
+                    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',
+                    'Referer': f"https://{source['domain']}/favorites",
+                    'Accept': 'text/css'
+                }
+                # --- END FIX ---
+
+                # --- FIX: Use scraper instead of requests ---
+                response = scraper.get(source['url'], headers=headers, cookies=cookies_dict_for_source, timeout=20)
+                # --- END FIX ---
+
                 response .raise_for_status ()
                 posts_data_from_api =response .json ()
 
@@ -153,33 +148,24 @@ class FavoritePostsFetcherThread (QThread ):
                     fetched_any_successfully =True 
                 self ._logger (f"Fetched {processed_posts_from_source } posts from {source ['name']}.")
 
-            except requests .exceptions .RequestException as e :
+            except Exception as e :
                 err_detail =f"Error fetching favorite posts from {source ['name']}: {e }"
                 self ._logger (err_detail )
                 error_messages_for_summary .append (err_detail )
-                if e .response is not None and e .response .status_code ==401 :
+                if hasattr(e, 'response') and e.response is not None and e.response.status_code == 401:
                     self .finished .emit ([],"KEY_AUTH_FAILED")
                     self ._logger (f"Authorization failed for {source ['name']}, emitting KEY_AUTH_FAILED.")
                     return 
-            except Exception as e :
-                err_detail =f"An unexpected error occurred with {source ['name']}: {e }"
-                self ._logger (err_detail )
-                error_messages_for_summary .append (err_detail )
 
         if self .cancellation_event .is_set ():
             self .finished .emit ([],"KEY_FETCH_CANCELLED_AFTER")
             return 
 
-
         if self .cookies_config ['use_cookie']and not any_cookies_loaded_successfully_for_any_source :
-
             if self .target_domain_preference and not any_cookies_loaded_successfully_for_any_source :
-
                  domain_key_part =self .error_key_map .get (self .target_domain_preference ,self .target_domain_preference .lower ().replace ('.','_'))
                  self .finished .emit ([],f"KEY_COOKIES_REQUIRED_BUT_NOT_FOUND_FOR_DOMAIN_{domain_key_part }")
                  return 
-
-
             self .finished .emit ([],"KEY_COOKIES_REQUIRED_BUT_NOT_FOUND_GENERIC")
             return 
 
@@ -643,4 +629,4 @@ class FavoritePostsDialog (QDialog ):
         self .accept ()
 
     def get_selected_posts (self ):
-        return self .selected_posts_data 
+        return self .selected_posts_data 

src/ui/dialogs/FutureSettingsDialog.py

@@ -1,6 +1,7 @@
 # --- Standard Library Imports ---
 import os
 import json
+import sys
 
 # --- PyQt5 Imports ---
 from PyQt5.QtCore import Qt, QStandardPaths
@@ -17,9 +18,9 @@ from ...config.constants import (
     THEME_KEY, LANGUAGE_KEY, DOWNLOAD_LOCATION_KEY,
     RESOLUTION_KEY, UI_SCALE_KEY, SAVE_CREATOR_JSON_KEY,
     COOKIE_TEXT_KEY, USE_COOKIE_KEY,
-    FETCH_FIRST_KEY ### ADDED ###
+    FETCH_FIRST_KEY
 )
-
+from ...services.updater import UpdateChecker, UpdateDownloader
 
 class FutureSettingsDialog(QDialog):
     """
@@ -30,6 +31,7 @@ class FutureSettingsDialog(QDialog):
         super().__init__(parent)
         self.parent_app = parent_app_ref
         self.setModal(True)
+        self.update_downloader_thread = None # To keep a reference
 
         app_icon = get_app_icon_object()
         if app_icon and not app_icon.isNull():
@@ -37,7 +39,7 @@ class FutureSettingsDialog(QDialog):
 
         screen_height = QApplication.primaryScreen().availableGeometry().height() if QApplication.primaryScreen() else 800
         scale_factor = screen_height / 800.0
-        base_min_w, base_min_h = 420, 390
+        base_min_w, base_min_h = 420, 480 # Increased height for update section
         scaled_min_w = int(base_min_w * scale_factor)
         scaled_min_h = int(base_min_h * scale_factor)
         self.setMinimumSize(scaled_min_w, scaled_min_h)
@@ -53,21 +55,19 @@ class FutureSettingsDialog(QDialog):
         self.interface_group_box = QGroupBox()
         interface_layout = QGridLayout(self.interface_group_box)
 
-        # Theme
+        # Theme, UI Scale, Language (unchanged)...
         self.theme_label = QLabel()
         self.theme_toggle_button = QPushButton()
         self.theme_toggle_button.clicked.connect(self._toggle_theme)
         interface_layout.addWidget(self.theme_label, 0, 0)
         interface_layout.addWidget(self.theme_toggle_button, 0, 1)
 
-        # UI Scale
         self.ui_scale_label = QLabel()
         self.ui_scale_combo_box = QComboBox()
         self.ui_scale_combo_box.currentIndexChanged.connect(self._display_setting_changed)
         interface_layout.addWidget(self.ui_scale_label, 1, 0)
         interface_layout.addWidget(self.ui_scale_combo_box, 1, 1)
-        
-        # Language
+
         self.language_label = QLabel()
         self.language_combo_box = QComboBox()
         self.language_combo_box.currentIndexChanged.connect(self._language_selection_changed)
@@ -78,6 +78,7 @@ class FutureSettingsDialog(QDialog):
 
         self.download_window_group_box = QGroupBox()
         download_window_layout = QGridLayout(self.download_window_group_box)
+        
         self.window_size_label = QLabel()
         self.resolution_combo_box = QComboBox()
         self.resolution_combo_box.currentIndexChanged.connect(self._display_setting_changed)
@@ -91,7 +92,7 @@ class FutureSettingsDialog(QDialog):
         download_window_layout.addWidget(self.save_path_button, 1, 1)
 
         self.save_creator_json_checkbox = QCheckBox()
-        self.save_creator_json_checkbox.stateChanged.connect(self._creator_json_setting_changed) 
+        self.save_creator_json_checkbox.stateChanged.connect(self._creator_json_setting_changed)
         download_window_layout.addWidget(self.save_creator_json_checkbox, 2, 0, 1, 2)
         
         self.fetch_first_checkbox = QCheckBox()
@@ -100,14 +101,96 @@ class FutureSettingsDialog(QDialog):
 
         main_layout.addWidget(self.download_window_group_box)
 
+        # --- NEW: Update Section ---
+        self.update_group_box = QGroupBox()
+        update_layout = QGridLayout(self.update_group_box)
+        self.version_label = QLabel()
+        self.update_status_label = QLabel()
+        self.check_update_button = QPushButton()
+        self.check_update_button.clicked.connect(self._check_for_updates)
+        update_layout.addWidget(self.version_label, 0, 0)
+        update_layout.addWidget(self.update_status_label, 0, 1)
+        update_layout.addWidget(self.check_update_button, 1, 0, 1, 2)
+        main_layout.addWidget(self.update_group_box)
+        # --- END: New Section ---
+
         main_layout.addStretch(1)
 
         self.ok_button = QPushButton()
         self.ok_button.clicked.connect(self.accept)
         main_layout.addWidget(self.ok_button, 0, Qt.AlignRight | Qt.AlignBottom)
 
+    def _retranslate_ui(self):
+        self.setWindowTitle(self._tr("settings_dialog_title", "Settings"))
+        self.interface_group_box.setTitle(self._tr("interface_group_title", "Interface Settings"))
+        self.download_window_group_box.setTitle(self._tr("download_window_group_title", "Download & Window Settings"))
+        self.theme_label.setText(self._tr("theme_label", "Theme:"))
+        self.ui_scale_label.setText(self._tr("ui_scale_label", "UI Scale:"))
+        self.language_label.setText(self._tr("language_label", "Language:"))
+        self.window_size_label.setText(self._tr("window_size_label", "Window Size:"))
+        self.default_path_label.setText(self._tr("default_path_label", "Default Path:"))
+        self.save_creator_json_checkbox.setText(self._tr("save_creator_json_label", "Save Creator.json file"))
+        self.fetch_first_checkbox.setText(self._tr("fetch_first_label", "Fetch First (Download after all pages are found)"))
+        self.fetch_first_checkbox.setToolTip(self._tr("fetch_first_tooltip", "If checked, the downloader will find all posts from a creator first before starting any downloads.\nThis can be slower to start but provides a more accurate progress bar."))
+        self._update_theme_toggle_button_text()
+        self.save_path_button.setText(self._tr("settings_save_cookie_path_button", "Save Cookie + Download Path"))
+        self.save_path_button.setToolTip(self._tr("settings_save_cookie_path_tooltip", "Save the current 'Download Location' and Cookie settings for future sessions."))
+        self.ok_button.setText(self._tr("ok_button", "OK"))
+
+        # --- NEW: Translations for Update Section ---
+        self.update_group_box.setTitle(self._tr("update_group_title", "Application Updates"))
+        current_version = self.parent_app.windowTitle().split(' v')[-1]
+        self.version_label.setText(self._tr("current_version_label", f"Current Version: v{current_version}"))
+        self.update_status_label.setText(self._tr("update_status_ready", "Ready to check."))
+        self.check_update_button.setText(self._tr("check_for_updates_button", "Check for Updates"))
+        # --- END: New Translations ---
+
+        self._populate_display_combo_boxes()
+        self._populate_language_combo_box()
+        self._load_checkbox_states()
+
+    def _check_for_updates(self):
+        """Starts the update check thread."""
+        self.check_update_button.setEnabled(False)
+        self.update_status_label.setText(self._tr("update_status_checking", "Checking..."))
+        current_version = self.parent_app.windowTitle().split(' v')[-1]
+        
+        self.update_checker_thread = UpdateChecker(current_version)
+        self.update_checker_thread.update_available.connect(self._on_update_available)
+        self.update_checker_thread.up_to_date.connect(self._on_up_to_date)
+        self.update_checker_thread.update_error.connect(self._on_update_error)
+        self.update_checker_thread.start()
+
+    def _on_update_available(self, new_version, download_url):
+        self.update_status_label.setText(self._tr("update_status_found", f"Update found: v{new_version}"))
+        self.check_update_button.setEnabled(True)
+        
+        reply = QMessageBox.question(self, self._tr("update_available_title", "Update Available"),
+                                     self._tr("update_available_message", f"A new version (v{new_version}) is available.\nWould you like to download and install it now?"),
+                                     QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
+        if reply == QMessageBox.Yes:
+            self.ok_button.setEnabled(False)
+            self.check_update_button.setEnabled(False)
+            self.update_status_label.setText(self._tr("update_status_downloading", "Downloading update..."))
+            self.update_downloader_thread = UpdateDownloader(download_url, self.parent_app)
+            self.update_downloader_thread.download_finished.connect(self._on_download_finished)
+            self.update_downloader_thread.download_error.connect(self._on_update_error)
+            self.update_downloader_thread.start()
+
+    def _on_download_finished(self):
+        QApplication.instance().quit()
+    
+    def _on_up_to_date(self, message):
+        self.update_status_label.setText(self._tr("update_status_latest", message))
+        self.check_update_button.setEnabled(True)
+    
+    def _on_update_error(self, message):
+        self.update_status_label.setText(self._tr("update_status_error", f"Error: {message}"))
+        self.check_update_button.setEnabled(True)
+        self.ok_button.setEnabled(True)
+
+    # --- (The rest of the file remains unchanged from your provided code) ---
     def _load_checkbox_states(self):
-        """Loads the initial state for all checkboxes from settings."""
         self.save_creator_json_checkbox.blockSignals(True)
         should_save = self.parent_app.settings.value(SAVE_CREATOR_JSON_KEY, True, type=bool)
         self.save_creator_json_checkbox.setChecked(should_save)
@@ -119,13 +202,11 @@ class FutureSettingsDialog(QDialog):
         self.fetch_first_checkbox.blockSignals(False)
 
     def _creator_json_setting_changed(self, state):
-        """Saves the state of the 'Save Creator.json' checkbox."""
         is_checked = state == Qt.Checked
         self.parent_app.settings.setValue(SAVE_CREATOR_JSON_KEY, is_checked)
         self.parent_app.settings.sync()
 
     def _fetch_first_setting_changed(self, state):
-        """Saves the state of the 'Fetch First' checkbox."""
         is_checked = state == Qt.Checked
         self.parent_app.settings.setValue(FETCH_FIRST_KEY, is_checked)
         self.parent_app.settings.sync()
@@ -135,34 +216,6 @@ class FutureSettingsDialog(QDialog):
             return get_translation(self.parent_app.current_selected_language, key, default_text)
         return default_text
 
-    def _retranslate_ui(self):
-        self.setWindowTitle(self._tr("settings_dialog_title", "Settings"))
-        
-        self.interface_group_box.setTitle(self._tr("interface_group_title", "Interface Settings"))
-        self.download_window_group_box.setTitle(self._tr("download_window_group_title", "Download & Window Settings"))
-
-        self.theme_label.setText(self._tr("theme_label", "Theme:"))
-        self.ui_scale_label.setText(self._tr("ui_scale_label", "UI Scale:"))
-        self.language_label.setText(self._tr("language_label", "Language:"))
-        
-        self.window_size_label.setText(self._tr("window_size_label", "Window Size:"))
-        self.default_path_label.setText(self._tr("default_path_label", "Default Path:"))
-        self.save_creator_json_checkbox.setText(self._tr("save_creator_json_label", "Save Creator.json file"))
-        
-        self.fetch_first_checkbox.setText(self._tr("fetch_first_label", "Fetch First (Download after all pages are found)"))
-        self.fetch_first_checkbox.setToolTip(self._tr("fetch_first_tooltip", "If checked, the downloader will find all posts from a creator first before starting any downloads.\nThis can be slower to start but provides a more accurate progress bar."))
-        
-        self._update_theme_toggle_button_text()
-        self.save_path_button.setText(self._tr("settings_save_cookie_path_button", "Save Cookie + Download Path"))
-        self.save_path_button.setToolTip(self._tr("settings_save_cookie_path_tooltip", "Save the current 'Download Location' and Cookie settings for future sessions."))
-        self.ok_button.setText(self._tr("ok_button", "OK"))
-
-        self._populate_display_combo_boxes()
-        self._populate_language_combo_box()
-        self._load_checkbox_states()
-
-    # --- (The rest of the file remains unchanged) ---
-
     def _apply_theme(self):
         if self.parent_app and self.parent_app.current_theme == "dark":
             scale = getattr(self.parent_app, 'scale_factor', 1)
@@ -188,14 +241,7 @@ class FutureSettingsDialog(QDialog):
     def _populate_display_combo_boxes(self):
         self.resolution_combo_box.blockSignals(True)
         self.resolution_combo_box.clear()
-        resolutions = [
-            ("Auto", self._tr("auto_resolution", "Auto (System Default)")),
-            ("1280x720", "1280 x 720"),
-            ("1600x900", "1600 x 900"),
-            ("1920x1080", "1920 x 1080 (Full HD)"),
-            ("2560x1440", "2560 x 1440 (2K)"),
-            ("3840x2160", "3840 x 2160 (4K)")
-        ]
+        resolutions = [("Auto", "Auto"), ("1280x720", "1280x720"), ("1600x900", "1600x900"), ("1920x1080", "1920x1080")]
         current_res = self.parent_app.settings.value(RESOLUTION_KEY, "Auto")
         for res_key, res_name in resolutions:
             self.resolution_combo_box.addItem(res_name, res_key)
@@ -214,35 +260,22 @@ class FutureSettingsDialog(QDialog):
             (1.50, "150%"),
             (1.75, "175%"),
             (2.0, "200%")
-        ]
-
-        current_scale = float(self.parent_app.settings.value(UI_SCALE_KEY, 1.0))
+            ]
+        current_scale = self.parent_app.settings.value(UI_SCALE_KEY, 1.0)
         for scale_val, scale_name in scales:
             self.ui_scale_combo_box.addItem(scale_name, scale_val)
-            if abs(current_scale - scale_val) < 0.01:
+            if abs(float(current_scale) - scale_val) < 0.01:
                 self.ui_scale_combo_box.setCurrentIndex(self.ui_scale_combo_box.count() - 1)
         self.ui_scale_combo_box.blockSignals(False)
 
     def _display_setting_changed(self):
         selected_res = self.resolution_combo_box.currentData()
         selected_scale = self.ui_scale_combo_box.currentData()
-
         self.parent_app.settings.setValue(RESOLUTION_KEY, selected_res)
         self.parent_app.settings.setValue(UI_SCALE_KEY, selected_scale)
         self.parent_app.settings.sync()
-
-        msg_box = QMessageBox(self)
-        msg_box.setIcon(QMessageBox.Information)
-        msg_box.setWindowTitle(self._tr("display_change_title", "Display Settings Changed"))
-        msg_box.setText(self._tr("language_change_message", "A restart is required for these changes to take effect."))
-        msg_box.setInformativeText(self._tr("language_change_informative", "Would you like to restart now?"))
-        restart_button = msg_box.addButton(self._tr("restart_now_button", "Restart Now"), QMessageBox.ApplyRole)
-        ok_button = msg_box.addButton(self._tr("ok_button", "OK"), QMessageBox.AcceptRole)
-        msg_box.setDefaultButton(ok_button)
-        msg_box.exec_()
-
-        if msg_box.clickedButton() == restart_button:
-            self.parent_app._request_restart_application()
+        QMessageBox.information(self, self._tr("display_change_title", "Display Settings Changed"),
+                                self._tr("language_change_message", "A restart is required..."))
 
     def _populate_language_combo_box(self):
         self.language_combo_box.blockSignals(True)
@@ -252,7 +285,7 @@ class FutureSettingsDialog(QDialog):
             ("de", "Deutsch (German)"), ("es", "Español (Spanish)"), ("pt", "Português (Portuguese)"),
             ("ru", "Русский (Russian)"), ("zh_CN", "简体中文 (Simplified Chinese)"),
             ("zh_TW", "繁體中文 (Traditional Chinese)"), ("ko", "한국어 (Korean)")
-        ]
+            ]
         current_lang = self.parent_app.current_selected_language
         for lang_code, lang_name in languages:
             self.language_combo_box.addItem(lang_name, lang_code)
@@ -266,59 +299,32 @@ class FutureSettingsDialog(QDialog):
             self.parent_app.settings.setValue(LANGUAGE_KEY, selected_lang_code)
             self.parent_app.settings.sync()
             self.parent_app.current_selected_language = selected_lang_code
-            
             self._retranslate_ui()
             if hasattr(self.parent_app, '_retranslate_main_ui'):
-                 self.parent_app._retranslate_main_ui()
-            
-            msg_box = QMessageBox(self)
-            msg_box.setIcon(QMessageBox.Information)
-            msg_box.setWindowTitle(self._tr("language_change_title", "Language Changed"))
-            msg_box.setText(self._tr("language_change_message", "A restart is required..."))
-            msg_box.setInformativeText(self._tr("language_change_informative", "Would you like to restart now?"))
-            restart_button = msg_box.addButton(self._tr("restart_now_button", "Restart Now"), QMessageBox.ApplyRole)
-            ok_button = msg_box.addButton(self._tr("ok_button", "OK"), QMessageBox.AcceptRole)
-            msg_box.setDefaultButton(ok_button)
-            msg_box.exec_()
-
-            if msg_box.clickedButton() == restart_button:
-                self.parent_app._request_restart_application()
+                self.parent_app._retranslate_main_ui()
+            QMessageBox.information(self, self._tr("language_change_title", "Language Changed"),
+                                    self._tr("language_change_message", "A restart is required..."))
 
     def _save_cookie_and_path(self):
-        """Saves the current download path and/or cookie settings from the main window."""
         path_saved = False
         cookie_saved = False
-        
         if hasattr(self.parent_app, 'dir_input') and self.parent_app.dir_input:
             current_path = self.parent_app.dir_input.text().strip()
             if current_path and os.path.isdir(current_path):
                 self.parent_app.settings.setValue(DOWNLOAD_LOCATION_KEY, current_path)
                 path_saved = True
-        
         if hasattr(self.parent_app, 'use_cookie_checkbox'):
             use_cookie = self.parent_app.use_cookie_checkbox.isChecked()
             cookie_content = self.parent_app.cookie_text_input.text().strip()
-            
             if use_cookie and cookie_content:
                 self.parent_app.settings.setValue(USE_COOKIE_KEY, True)
                 self.parent_app.settings.setValue(COOKIE_TEXT_KEY, cookie_content)
                 cookie_saved = True
-            else: 
+            else:
                 self.parent_app.settings.setValue(USE_COOKIE_KEY, False)
                 self.parent_app.settings.setValue(COOKIE_TEXT_KEY, "")
-
         self.parent_app.settings.sync()
-
-        # --- User Feedback ---
-        if path_saved and cookie_saved:
-            message = self._tr("settings_save_both_success", "Download location and cookie settings saved.")
-        elif path_saved:
-            message = self._tr("settings_save_path_only_success", "Download location saved. No cookie settings were active to save.")
-        elif cookie_saved:
-            message = self._tr("settings_save_cookie_only_success", "Cookie settings saved. Download location was not set.")
+        if path_saved or cookie_saved:
+            QMessageBox.information(self, "Settings Saved", "Settings have been saved.")
         else:
-            QMessageBox.warning(self, self._tr("settings_save_nothing_title", "Nothing to Save"),
-                                self._tr("settings_save_nothing_message", "The download location is not a valid directory and no cookie was active."))
-            return
-
-        QMessageBox.information(self, self._tr("settings_save_success_title", "Settings Saved"), message)
+            QMessageBox.warning(self, "Nothing to Save", "No valid settings to save.")

src/ui/main_window.py

@@ -10,6 +10,7 @@ import re
 import subprocess
 import datetime
 import requests
+import cloudscraper
 import unicodedata
 from collections import deque, defaultdict
 import threading
@@ -36,6 +37,10 @@ from ..core.workers import PostProcessorSignals
 from ..core.api_client import download_from_api
 from ..core.discord_client import fetch_server_channels, fetch_channel_messages 
 from ..core.manager import DownloadManager
+from ..core.nhentai_client import fetch_nhentai_gallery
+from ..core.bunkr_client import fetch_bunkr_data
+from ..core.saint2_client import fetch_saint2_data 
+from ..core.erome_client import fetch_erome_data
 from .assets import get_app_icon_object
 from ..config.constants import *
 from ..utils.file_utils import KNOWN_NAMES, clean_folder_name
@@ -281,19 +286,15 @@ class DownloaderApp (QWidget ):
         self.download_location_label_widget = None
         self.remove_from_filename_label_widget = None
         self.skip_words_label_widget = None
-        self.setWindowTitle("Kemono Downloader v6.4.3")
+        self.setWindowTitle("Kemono Downloader v7.0.0")
         setup_ui(self)
         self._connect_signals()
-        self.log_signal.emit("ℹ️ Local API server functionality has been removed.")
-        self.log_signal.emit("ℹ️ 'Skip Current File' button has been removed.")
         if hasattr(self, 'character_input'):
             self.character_input.setToolTip(self._tr("character_input_tooltip", "Enter character names (comma-separated)..."))
         self.log_signal.emit(f"ℹ️ Manga filename style loaded: '{self.manga_filename_style}'")
         self.log_signal.emit(f"ℹ️ Skip words scope loaded: '{self.skip_words_scope}'")
         self.log_signal.emit(f"ℹ️ Character filter scope set to default: '{self.char_filter_scope}'")
         self.log_signal.emit(f"ℹ️ Multi-part download defaults to: {'Enabled' if self.allow_multipart_download_setting else 'Disabled'}")
-        self.log_signal.emit(f"ℹ️ Cookie text defaults to: Empty on launch")
-        self.log_signal.emit(f"ℹ️ 'Use Cookie' setting defaults to: Disabled on launch")
         self.log_signal.emit(f"ℹ️ Scan post content for images defaults to: {'Enabled' if self.scan_content_images_setting else 'Disabled'}")
         self.log_signal.emit(f"ℹ️ Application language loaded: '{self.current_selected_language.upper()}' (UI may not reflect this yet).")
         self._retranslate_main_ui()
@@ -302,6 +303,18 @@ class DownloaderApp (QWidget ):
         self._load_saved_cookie_settings() 
         self._update_button_states_and_connections()
         self._check_for_interrupted_session()
+        self._cleanup_after_update() 
+
+    def _cleanup_after_update(self):
+        """Deletes the old executable after a successful update."""
+        try:
+            app_path = sys.executable
+            old_app_path = os.path.join(os.path.dirname(app_path), "Kemono.Downloader.exe.old")
+            if os.path.exists(old_app_path):
+                os.remove(old_app_path)
+                self.log_signal.emit("ℹ️ Cleaned up old application file after update.")
+        except Exception as e:
+            self.log_signal.emit(f"⚠️ Could not remove old application file: {e}")
 
     def _apply_theme_and_restart_prompt(self):
         """Applies the theme and prompts the user to restart."""
@@ -923,7 +936,7 @@ class DownloaderApp (QWidget ):
         if hasattr (self ,'use_cookie_checkbox'):
             self .use_cookie_checkbox .toggled .connect (self ._update_cookie_input_visibility )
         if hasattr (self ,'link_input'):
-            self .link_input .textChanged .connect (self ._sync_queue_with_link_input )
+            self.link_input.textChanged.connect(self._update_ui_for_url_change)
             self.link_input.textChanged.connect(self._update_contextual_ui_elements) 
             self.link_input.textChanged.connect(self._update_button_states_and_connections)
         if hasattr(self, 'discord_scope_toggle_button'):
@@ -2215,12 +2228,21 @@ class DownloaderApp (QWidget ):
         if not button or not checked:
             return
         is_only_links = (button == self.radio_only_links)
-        if hasattr(self, 'use_multithreading_checkbox'):
+
+        if hasattr(self, 'use_multithreading_checkbox') and hasattr(self, 'thread_count_input'):
             if is_only_links:
-                self.use_multithreading_checkbox.setChecked(False)
-                self.use_multithreading_checkbox.setEnabled(False)
+                # When "Only Links" is selected, enable multithreading, set threads to 20, and lock the input.
+                self.use_multithreading_checkbox.setChecked(True)
+                self.thread_count_input.setText("20")
+                self.thread_count_input.setEnabled(False) 
+                self.thread_count_label.setEnabled(False)
+                self.update_multithreading_label("20")
             else:
-                self.use_multithreading_checkbox.setEnabled(True)
+                # When another mode is selected, re-enable the input for user control.
+                is_multithreading_checked = self.use_multithreading_checkbox.isChecked()
+                self.thread_count_input.setEnabled(is_multithreading_checked)
+                self.thread_count_label.setEnabled(is_multithreading_checked)
+
         if button != self.radio_more and checked:
             self.radio_more.setText("More")
             self.more_filter_scope = None
@@ -3114,15 +3136,75 @@ class DownloaderApp (QWidget ):
         if total_posts >0 or processed_posts >0 :
             self .file_progress_label .setText ("")
 
+    def _set_ui_for_specialized_downloader(self, is_specialized):
+        """Disables or enables UI elements for non-standard downloaders."""
+        widgets_to_disable = [
+            self.page_range_label, self.start_page_input, self.to_label, self.end_page_input,
+            self.character_filter_widget, self.skip_words_input, self.skip_scope_toggle_button,
+            self.remove_from_filename_input, self.radio_images, self.radio_videos,
+            self.radio_only_archives, self.radio_only_links, self.radio_only_audio, self.radio_more,
+            self.skip_zip_checkbox, self.download_thumbnails_checkbox, self.compress_images_checkbox,
+            self.use_subfolders_checkbox, self.use_subfolder_per_post_checkbox,
+            self.scan_content_images_checkbox, self.external_links_checkbox, self.manga_mode_checkbox,
+            self.use_cookie_checkbox, self.keep_duplicates_checkbox, self.date_prefix_checkbox,
+            self.manga_rename_toggle_button, self.manga_date_prefix_input,
+            self.multipart_toggle_button, self.custom_folder_input, self.custom_folder_label,
+            self.discord_scope_toggle_button, self.save_discord_as_pdf_btn
+        ]
+
+        enable_state = not is_specialized
+
+        for widget in widgets_to_disable:
+            if widget:
+                widget.setEnabled(enable_state)
+        
+        # When disabling, force 'All' to be checked and disable it too
+        if is_specialized and self.radio_all:
+            self.radio_all.setChecked(True)
+            self.radio_all.setEnabled(False)
+        elif self.radio_all:
+            self.radio_all.setEnabled(True)
+
+        # Re-run standard UI logic when re-enabling to restore correct states
+        if enable_state:
+            self._update_all_ui_states()
+
+    def _update_all_ui_states(self):
+        """A single function to call all UI update methods to restore state."""
+        is_manga_checked = self.manga_mode_checkbox.isChecked() if self.manga_mode_checkbox else False
+        is_subfolder_checked = self.use_subfolders_checkbox.isChecked() if self.use_subfolders_checkbox else False
+        is_cookie_checked = self.use_cookie_checkbox.isChecked() if self.use_cookie_checkbox else False
+        
+        self.update_ui_for_manga_mode(is_manga_checked)
+        self.update_custom_folder_visibility()
+        self.update_page_range_enabled_state()
+        if self.radio_group.checkedButton():
+             self._handle_filter_mode_change(self.radio_group.checkedButton(), True)
+        self.update_ui_for_subfolders(is_subfolder_checked)
+        self._update_cookie_input_visibility(is_cookie_checked)
+
     def _update_contextual_ui_elements(self, text=""):
         """Shows or hides UI elements based on the URL, like the Discord scope button."""
         if not hasattr(self, 'discord_scope_toggle_button'): return
+        
         url_text = self.link_input.text().strip()
         service, _, _ = extract_post_info(url_text) 
+        
+        # Handle specialized downloaders (Bunkr, nhentai)
+        is_saint2 = 'saint2.su' in url_text or 'saint2.pk' in url_text
+        is_erome = 'erome.com' in url_text 
+        is_specialized = service in ['bunkr', 'nhentai'] or is_saint2 or is_erome 
+        self._set_ui_for_specialized_downloader(is_specialized)
+
+        # Handle Discord UI
         is_discord = (service == 'discord')
         self.discord_scope_toggle_button.setVisible(is_discord)
-        if is_discord: self._update_discord_scope_button_text()
-        else: self.download_btn.setText(self._tr("start_download_button_text", "⬇️ Start Download"))
+        self.save_discord_as_pdf_btn.setVisible(is_discord)
+
+        if is_discord: 
+            self._update_discord_scope_button_text()
+        elif not is_specialized: # Don't change button text for specialized downloaders
+             self.download_btn.setText(self._tr("start_download_button_text", "⬇️ Start Download"))
 
     def _update_discord_scope_button_text(self):
         """Updates the text of the discord scope button and the main download button."""
@@ -3146,8 +3228,8 @@ class DownloaderApp (QWidget ):
             self._start_download_of_fetched_posts()
             return True
 
-        self.finish_lock = threading.Lock() 
-        self.is_finishing = False                  
+        self.finish_lock = threading.Lock()
+        self.is_finishing = False
         if self.active_update_profile:
             if not self.new_posts_for_update:
                 return self._check_for_updates()
@@ -3169,13 +3251,13 @@ class DownloaderApp (QWidget ):
 
         processed_post_ids_for_restore = []
         manga_counters_for_restore = None
-        start_offset_for_restore = 0 
+        start_offset_for_restore = 0
 
         if is_restore and self.interrupted_session_data:
             self.log_signal.emit("   Restoring session state...")
             download_state = self.interrupted_session_data.get("download_state", {})
             processed_post_ids_for_restore = download_state.get("processed_post_ids", [])
-            start_offset_for_restore = download_state.get("last_processed_offset", 0) 
+            start_offset_for_restore = download_state.get("last_processed_offset", 0)
             restored_hashes = download_state.get("successfully_downloaded_hashes", [])
             if restored_hashes:
                 with self.downloaded_file_hashes_lock:
@@ -3184,7 +3266,7 @@ class DownloaderApp (QWidget ):
             manga_counters_for_restore = download_state.get("manga_counters")
             if processed_post_ids_for_restore:
                 self.log_signal.emit(f"   Will skip {len(processed_post_ids_for_restore)} already processed posts.")
-            if start_offset_for_restore > 0: 
+            if start_offset_for_restore > 0:
                 self.log_signal.emit(f"   Resuming fetch from page offset: {start_offset_for_restore}")
             if manga_counters_for_restore:
                 self.log_signal.emit(f"   Restoring manga counters: {manga_counters_for_restore}")
@@ -3207,6 +3289,8 @@ class DownloaderApp (QWidget ):
 
         api_url = direct_api_url if direct_api_url else self.link_input.text().strip()
 
+        # --- START: MOVED AND CORRECTED LOGIC ---
+        # This block is moved to run before any special URL checks.
         main_ui_download_dir = self.dir_input.text().strip()
         extract_links_only = (self.radio_only_links and self.radio_only_links.isChecked())
         effective_output_dir_for_run = ""
@@ -3229,8 +3313,10 @@ class DownloaderApp (QWidget ):
                 return False
             effective_output_dir_for_run = os.path.normpath(override_output_dir)
         else:
+            is_special_downloader = 'saint2.su' in api_url or 'saint2.pk' in api_url or 'nhentai.net' in api_url or 'bunkr' in api_url or 'erome.com' in api_url
+            
             if not extract_links_only and not main_ui_download_dir:
-                QMessageBox.critical(self, "Input Error", "Download Directory is required when not in 'Only Links' mode.")
+                QMessageBox.critical(self, "Input Error", "Download Directory is required.")
                 return False
 
             if not extract_links_only and main_ui_download_dir and not os.path.isdir(main_ui_download_dir):
@@ -3247,7 +3333,122 @@ class DownloaderApp (QWidget ):
                 else:
                     self.log_signal.emit("❌ Download cancelled: Output directory does not exist and was not created.")
                     return False
-            effective_output_dir_for_run = os.path.normpath(main_ui_download_dir)
+            effective_output_dir_for_run = os.path.normpath(main_ui_download_dir) if main_ui_download_dir else ""
+
+        if 'erome.com' in api_url:
+            self.log_signal.emit("ℹ️ Erome.com URL detected. Starting dedicated Erome download.")
+            self.set_ui_enabled(False)
+
+            self.download_thread = EromeDownloadThread(api_url, effective_output_dir_for_run, self)
+            self.download_thread.progress_signal.connect(self.handle_main_log)
+            self.download_thread.file_progress_signal.connect(self.update_file_progress_display)
+            self.download_thread.finished_signal.connect(
+                lambda dl, skip, cancelled: self.download_finished(dl, skip, cancelled, [])
+            )
+            self.download_thread.start()
+            self._update_button_states_and_connections()
+            return True
+
+        if 'nhentai.net' in api_url and not re.search(r'/g/(\d+)', api_url):
+            self.log_signal.emit("=" * 40)
+            self.log_signal.emit("🚀 nhentai batch download mode detected.")
+            
+            nhentai_txt_path = os.path.join(self.app_base_dir, "appdata", "nhentai.txt")
+            self.log_signal.emit(f"   Looking for batch file at: {nhentai_txt_path}")
+
+            if not os.path.exists(nhentai_txt_path):
+                QMessageBox.warning(self, "File Not Found", f"To use batch mode, create a file named 'nhentai.txt' in your 'appdata' folder.\n\nPlace one nhentai URL on each line.")
+                self.log_signal.emit(f"   ❌ 'nhentai.txt' not found. Aborting batch download.")
+                return False
+
+            urls_to_download = []
+            try:
+                with open(nhentai_txt_path, 'r', encoding='utf-8') as f:
+                    for line in f:
+                        found_urls = re.findall(r'https?://nhentai\.net/g/\d+/?', line)
+                        if found_urls:
+                            urls_to_download.extend(found_urls)
+            except Exception as e:
+                QMessageBox.critical(self, "File Error", f"Could not read 'nhentai.txt':\n{e}")
+                self.log_signal.emit(f"   ❌ Error reading 'nhentai.txt': {e}")
+                return False
+
+            if not urls_to_download:
+                QMessageBox.information(self, "Empty File", "No valid nhentai gallery URLs were found in 'nhentai.txt'.")
+                self.log_signal.emit("   'nhentai.txt' was found but contained no valid URLs.")
+                return False
+            
+            self.log_signal.emit(f"   Found {len(urls_to_download)} URLs to process.")
+            self.favorite_download_queue.clear()
+            for url in urls_to_download:
+                self.favorite_download_queue.append({
+                    'url': url,
+                    'name': f"nhentai gallery from batch",
+                    'type': 'post'
+                })
+            
+            if not self.is_processing_favorites_queue:
+                self._process_next_favorite_download()
+            return True
+
+        is_saint2_url = 'saint2.su' in api_url or 'saint2.pk' in api_url
+        if is_saint2_url:
+            # First, check if it's the batch command. If so, do nothing here and let the next block handle it.
+            if api_url.strip().lower() != 'saint2.su':
+                self.log_signal.emit("ℹ️ Saint2.su URL detected. Starting dedicated Saint2 download.")
+                self.set_ui_enabled(False)
+                self.download_thread = Saint2DownloadThread(api_url, effective_output_dir_for_run, self)
+                self.download_thread.progress_signal.connect(self.handle_main_log)
+                self.download_thread.file_progress_signal.connect(self.update_file_progress_display)
+                self.download_thread.finished_signal.connect(
+                    lambda dl, skip, cancelled: self.download_finished(dl, skip, cancelled, [])
+                )
+                self.download_thread.start()
+                self._update_button_states_and_connections()
+                return True
+
+        if api_url.strip().lower() == 'saint2.su':
+            self.log_signal.emit("=" * 40)
+            self.log_signal.emit("🚀 Saint2.su batch download mode detected.")
+            
+            saint2_txt_path = os.path.join(self.app_base_dir, "appdata", "saint2.su.txt")
+            self.log_signal.emit(f"   Looking for batch file at: {saint2_txt_path}")
+
+            if not os.path.exists(saint2_txt_path):
+                QMessageBox.warning(self, "File Not Found", f"To use batch mode, create a file named 'saint2.su.txt' in your 'appdata' folder.\n\nPlace one saint2.su URL on each line.")
+                self.log_signal.emit(f"   ❌ 'saint2.su.txt' not found. Aborting batch download.")
+                return False
+
+            urls_to_download = []
+            try:
+                with open(saint2_txt_path, 'r', encoding='utf-8') as f:
+                    for line in f:
+                        # Find valid saint2 URLs in the line
+                        found_urls = re.findall(r'https?://saint\d*\.(?:su|pk|cr|to)/(?:a|d|embed)/[^/?#\s]+', line)
+                        if found_urls:
+                            urls_to_download.extend(found_urls)
+            except Exception as e:
+                QMessageBox.critical(self, "File Error", f"Could not read 'saint2.su.txt':\n{e}")
+                self.log_signal.emit(f"   ❌ Error reading 'saint2.su.txt': {e}")
+                return False
+
+            if not urls_to_download:
+                QMessageBox.information(self, "Empty File", "No valid saint2.su URLs were found in 'saint2.su.txt'.")
+                self.log_signal.emit("   'saint2.su.txt' was found but contained no valid URLs.")
+                return False
+            
+            self.log_signal.emit(f"   Found {len(urls_to_download)} URLs to process.")
+            self.favorite_download_queue.clear()
+            for url in urls_to_download:
+                self.favorite_download_queue.append({
+                    'url': url,
+                    'name': f"saint2.su link from batch",
+                    'type': 'post' # Treat each URL as a single post-like item
+                })
+            
+            if not self.is_processing_favorites_queue:
+                self._process_next_favorite_download()
+            return True
 
         if not is_restore:
             self._create_initial_session_file(api_url, effective_output_dir_for_run, remaining_queue=self.favorite_download_queue)
@@ -3274,6 +3475,44 @@ class DownloaderApp (QWidget ):
         
         service, id1, id2 = extract_post_info(api_url)
 
+        if service == 'nhentai':
+            gallery_id = id1
+            self.log_signal.emit("=" * 40)
+            self.log_signal.emit(f"🚀 Detected nhentai gallery ID: {gallery_id}")
+
+            if not effective_output_dir_for_run or not os.path.isdir(effective_output_dir_for_run):
+                QMessageBox.critical(self, "Input Error", "A valid Download Location is required.")
+                return False
+
+            gallery_data = fetch_nhentai_gallery(gallery_id, self.log_signal.emit)
+            if not gallery_data:
+                QMessageBox.critical(self, "Error", f"Could not retrieve gallery data for ID {gallery_id}.")
+                return False
+
+            self.set_ui_enabled(False)
+            self.download_thread = NhentaiDownloadThread(gallery_data, effective_output_dir_for_run, self)
+            self.download_thread.progress_signal.connect(self.handle_main_log)
+            self.download_thread.finished_signal.connect(
+                lambda dl, skip, cancelled: self.download_finished(dl, skip, cancelled, [])
+            )
+            self.download_thread.start()
+            self._update_button_states_and_connections()
+            return True
+
+        if service == 'bunkr':
+            self.log_signal.emit("ℹ️ Bunkr URL detected. Starting dedicated Bunkr download.")
+            self.set_ui_enabled(False)
+            
+            self.download_thread = BunkrDownloadThread(id1, effective_output_dir_for_run, self)
+            self.download_thread.progress_signal.connect(self.handle_main_log)
+            self.download_thread.file_progress_signal.connect(self.update_file_progress_display)
+            self.download_thread.finished_signal.connect(
+                lambda dl, skip, cancelled: self.download_finished(dl, skip, cancelled, [])
+            )
+            self.download_thread.start()
+            self._update_button_states_and_connections()
+            return True
+
         if not service or not id1:
             QMessageBox.critical(self, "Input Error", "Invalid or unsupported URL format.")
             return False
@@ -3282,7 +3521,6 @@ class DownloaderApp (QWidget ):
             server_id, channel_id = id1, id2
             
             def discord_processing_task():
-                # --- FIX: Wrap the entire task in a try...finally block ---
                 try:
                     def queue_logger(message):
                         self.worker_to_gui_queue.put({'type': 'progress', 'payload': (message,)})
@@ -3295,7 +3533,6 @@ class DownloaderApp (QWidget ):
                         self.selected_cookie_filepath, self.app_base_dir, queue_logger
                     )
                     
-                    # --- SCOPE: MESSAGES (PDF CREATION) ---
                     if self.discord_download_scope == 'messages':
                         queue_logger("=" * 40)
                         queue_logger(f"🚀 Starting Discord PDF export for: {api_url}")
@@ -3307,7 +3544,7 @@ class DownloaderApp (QWidget ):
                             return
 
                         default_filename = f"discord_{server_id}_{channel_id or 'server'}.pdf"
-                        output_filepath = os.path.join(output_dir, default_filename)  # We'll save with a default name
+                        output_filepath = os.path.join(output_dir, default_filename)
                         
                         all_messages, channels_to_process = [], []
                         server_name_for_pdf = server_id
@@ -3346,7 +3583,6 @@ class DownloaderApp (QWidget ):
                         self.finished_signal.emit(0, len(all_messages), self.cancellation_event.is_set(), [])
                         return
 
-                    # --- SCOPE: FILES (DOWNLOAD) ---
                     elif self.discord_download_scope == 'files':
                         worker_args = {
                             'download_root': effective_output_dir_for_run, 'known_names': list(KNOWN_NAMES),
@@ -3406,10 +3642,8 @@ class DownloaderApp (QWidget ):
                         
                         self.finished_signal.emit(total_dl, total_skip, self.cancellation_event.is_set(), [])
                 finally:
-                    # This ensures the flag is reset, allowing the UI to finalize correctly
                     self.is_fetcher_thread_running = False
 
-            # --- FIX: Set the fetcher running flag to prevent premature finalization ---
             self.is_fetcher_thread_running = True
             
             self.set_ui_enabled(False)
@@ -4057,6 +4291,79 @@ class DownloaderApp (QWidget ):
         self.is_restore_pending = True
         self.start_download(direct_api_url=restore_url, override_output_dir=restore_dir, is_restore=True)
 
+    def _update_ui_for_url_change(self, text=""):
+        """A single, authoritative function to update all UI states based on the URL."""
+        url_text = self.link_input.text().strip()
+        service, _, _ = extract_post_info(url_text)
+
+        # A list of all widgets that are context-dependent
+        widgets_to_manage = [
+            self.page_range_label, self.start_page_input, self.to_label, self.end_page_input,
+            self.character_filter_widget, self.skip_words_input, self.skip_scope_toggle_button,
+            self.remove_from_filename_input, self.radio_all, self.radio_images, self.radio_videos,
+            self.radio_only_archives, self.radio_only_links, self.radio_only_audio, self.radio_more,
+            self.skip_zip_checkbox, self.download_thumbnails_checkbox, self.compress_images_checkbox,
+            self.use_subfolders_checkbox, self.use_subfolder_per_post_checkbox,
+            self.scan_content_images_checkbox, self.external_links_checkbox, self.manga_mode_checkbox,
+            self.use_cookie_checkbox, self.keep_duplicates_checkbox, self.date_prefix_checkbox,
+            self.manga_rename_toggle_button, self.manga_date_prefix_input,
+            self.multipart_toggle_button, self.custom_folder_input, self.custom_folder_label
+        ]
+
+        # --- Logic for Specialized Downloaders (Bunkr, nhentai) ---
+        if service in ['bunkr', 'nhentai']:
+            self.progress_log_label.setText("📜 Progress Log:")
+            self.download_btn.setText(self._tr("start_download_button_text", "⬇️ Start Download"))
+            
+            # Disable all complex settings
+            for widget in widgets_to_manage:
+                if widget:
+                    widget.setEnabled(False)
+
+            # Force 'All' filter and disable it
+            if self.radio_all:
+                self.radio_all.setChecked(True)
+
+            # Ensure Discord UI is hidden
+            if hasattr(self, 'discord_scope_toggle_button'):
+                self.discord_scope_toggle_button.setVisible(False)
+            if hasattr(self, 'save_discord_as_pdf_btn'):
+                self.save_discord_as_pdf_btn.setVisible(False)
+            
+            return  # CRUCIAL: Stop here for specialized URLs
+
+        # --- Logic for Standard Downloaders (Kemono, Coomer, Discord) ---
+        
+        # First, re-enable all managed widgets as a baseline
+        for widget in widgets_to_manage:
+            if widget:
+                widget.setEnabled(True)
+
+        # Now, apply context-specific rules for the standard downloaders
+        is_discord = (service == 'discord')
+        if hasattr(self, 'discord_scope_toggle_button'):
+            self.discord_scope_toggle_button.setVisible(is_discord)
+        if hasattr(self, 'save_discord_as_pdf_btn'):
+            self.save_discord_as_pdf_btn.setVisible(is_discord)
+
+        if is_discord:
+            self._update_discord_scope_button_text()
+        else:
+            self.download_btn.setText(self._tr("start_download_button_text", "⬇️ Start Download"))
+
+        # Re-run all the standard UI state functions to apply the correct logic
+        is_manga_checked = self.manga_mode_checkbox.isChecked() if self.manga_mode_checkbox else False
+        is_subfolder_checked = self.use_subfolders_checkbox.isChecked() if self.use_subfolders_checkbox else False
+        is_cookie_checked = self.use_cookie_checkbox.isChecked() if self.use_cookie_checkbox else False
+        
+        self.update_ui_for_manga_mode(is_manga_checked)
+        self.update_custom_folder_visibility()
+        self.update_page_range_enabled_state()
+        if self.radio_group and self.radio_group.checkedButton():
+             self._handle_filter_mode_change(self.radio_group.checkedButton(), True)
+        self.update_ui_for_subfolders(is_subfolder_checked)
+        self._update_cookie_input_visibility(is_cookie_checked)
+
     def start_single_threaded_download (self ,**kwargs ):
         global BackendDownloadThread 
         try :
@@ -4741,6 +5048,22 @@ class DownloaderApp (QWidget ):
             self.log_signal.emit("    Cancelling active External Link download thread...")
             self.external_link_download_thread.cancel()
 
+        if isinstance(self.download_thread, NhentaiDownloadThread): 
+            self.log_signal.emit("    Signaling nhentai download thread to cancel.")
+            self.download_thread.cancel()
+
+        if isinstance(self.download_thread, BunkrDownloadThread):
+            self.log_signal.emit("    Signaling Bunkr download thread to cancel.")
+            self.download_thread.cancel()
+
+        if isinstance(self.download_thread, Saint2DownloadThread):
+            self.log_signal.emit("    Signaling Saint2 download thread to cancel.")
+            self.download_thread.cancel()
+
+        if isinstance(self.download_thread, EromeDownloadThread):
+            self.log_signal.emit("    Signaling Erome download thread to cancel.")
+            self.download_thread.cancel()
+
     def _get_domain_for_service(self, service_name: str) -> str:
         """Determines the base domain for a given service."""
         if not isinstance(service_name, str):
@@ -4836,6 +5159,7 @@ class DownloaderApp (QWidget ):
             if self.download_thread:
                 if isinstance(self.download_thread, QThread):
                     try:
+                        # Disconnect signals to prevent any lingering connections
                         if hasattr(self.download_thread, 'progress_signal'): self.download_thread.progress_signal.disconnect(self.handle_main_log)
                         if hasattr(self.download_thread, 'add_character_prompt_signal'): self.download_thread.add_character_prompt_signal.disconnect(self.add_character_prompt_signal)
                         if hasattr(self.download_thread, 'finished_signal'): self.download_thread.finished_signal.disconnect(self.download_finished)
@@ -4849,9 +5173,8 @@ class DownloaderApp (QWidget ):
                     except (TypeError, RuntimeError) as e:
                         self.log_signal.emit(f"ℹ️ Note during single-thread signal disconnection: {e}")
 
-                    if not self.download_thread.isRunning():
-                        self.download_thread.deleteLater()
-                        self.download_thread = None
+                    self.download_thread.deleteLater()
+                    self.download_thread = None
                 else:
                     self.download_thread = None
 
@@ -5855,6 +6178,325 @@ class DownloaderApp (QWidget ):
             # Use a QTimer to avoid deep recursion and correctly move to the next item.
             QTimer.singleShot(100, self._process_next_favorite_download)
 
+class Saint2DownloadThread(QThread):
+    """A dedicated QThread for handling saint2.su downloads."""
+    progress_signal = pyqtSignal(str)
+    file_progress_signal = pyqtSignal(str, object)
+    finished_signal = pyqtSignal(int, int, bool) # dl_count, skip_count, cancelled
+
+    def __init__(self, url, output_dir, parent=None):
+        super().__init__(parent)
+        self.saint2_url = url
+        self.output_dir = output_dir
+        self.is_cancelled = False
+
+    def run(self):
+        download_count = 0
+        skip_count = 0
+        self.progress_signal.emit("=" * 40)
+        self.progress_signal.emit(f"🚀 Starting Saint2.su Download for: {self.saint2_url}")
+        
+        # Use the new client to get the download info
+        album_name, files_to_download = fetch_saint2_data(self.saint2_url, self.progress_signal.emit)
+        
+        if not files_to_download:
+            self.progress_signal.emit("❌ Failed to extract file information from Saint2. Aborting.")
+            self.finished_signal.emit(0, 0, self.is_cancelled)
+            return
+
+        # For single media, album_name is the title; for albums, it's the album title
+        album_path = os.path.join(self.output_dir, album_name)
+        try:
+            os.makedirs(album_path, exist_ok=True)
+            self.progress_signal.emit(f"   Saving to folder: '{album_path}'")
+        except OSError as e:
+            self.progress_signal.emit(f"❌ Critical error creating directory: {e}")
+            self.finished_signal.emit(0, len(files_to_download), self.is_cancelled)
+            return
+
+        total_files = len(files_to_download)
+        session = requests.Session()
+
+        for i, file_data in enumerate(files_to_download):
+            if self.is_cancelled:
+                self.progress_signal.emit("   Download cancelled by user.")
+                skip_count = total_files - download_count
+                break
+
+            filename = file_data.get('filename', f'untitled_{i+1}.mp4')
+            file_url = file_data.get('url')
+            headers = file_data.get('headers')
+            filepath = os.path.join(album_path, filename)
+            
+            if os.path.exists(filepath):
+                self.progress_signal.emit(f"   -> Skip ({i+1}/{total_files}): '{filename}' already exists.")
+                skip_count += 1
+                continue
+
+            self.progress_signal.emit(f"   Downloading ({i+1}/{total_files}): '{filename}'...")
+            
+            try:
+                response = session.get(file_url, stream=True, headers=headers, timeout=60)
+                response.raise_for_status()
+
+                total_size = int(response.headers.get('content-length', 0))
+                downloaded_size = 0
+                last_update_time = time.time()
+
+                with open(filepath, 'wb') as f:
+                    for chunk in response.iter_content(chunk_size=8192):
+                        if self.is_cancelled:
+                            break
+                        if chunk:
+                            f.write(chunk)
+                            downloaded_size += len(chunk)
+                            current_time = time.time()
+                            if total_size > 0 and (current_time - last_update_time) > 0.5:
+                                self.file_progress_signal.emit(filename, (downloaded_size, total_size))
+                                last_update_time = current_time
+                
+                if self.is_cancelled:
+                    if os.path.exists(filepath): os.remove(filepath)
+                    continue
+                
+                if total_size > 0:
+                    self.file_progress_signal.emit(filename, (total_size, total_size))
+
+                download_count += 1
+            except requests.exceptions.RequestException as e:
+                self.progress_signal.emit(f"   ❌ Failed to download '{filename}'. Error: {e}")
+                if os.path.exists(filepath): os.remove(filepath)
+                skip_count += 1
+            except Exception as e:
+                self.progress_signal.emit(f"   ❌ An unexpected error occurred with '{filename}': {e}")
+                if os.path.exists(filepath): os.remove(filepath)
+                skip_count += 1
+        
+        self.file_progress_signal.emit("", None)
+        self.finished_signal.emit(download_count, skip_count, self.is_cancelled)
+
+    def cancel(self):
+        self.is_cancelled = True
+        self.progress_signal.emit("   Cancellation signal received by Saint2 thread.")
+
+class EromeDownloadThread(QThread):
+    """A dedicated QThread for handling erome.com downloads."""
+    progress_signal = pyqtSignal(str)
+    file_progress_signal = pyqtSignal(str, object)
+    finished_signal = pyqtSignal(int, int, bool) # dl_count, skip_count, cancelled
+
+    def __init__(self, url, output_dir, parent=None):
+        super().__init__(parent)
+        self.erome_url = url
+        self.output_dir = output_dir
+        self.is_cancelled = False
+
+    def run(self):
+        download_count = 0
+        skip_count = 0
+        self.progress_signal.emit("=" * 40)
+        self.progress_signal.emit(f"🚀 Starting Erome.com Download for: {self.erome_url}")
+        
+        album_name, files_to_download = fetch_erome_data(self.erome_url, self.progress_signal.emit)
+        
+        if not files_to_download:
+            self.progress_signal.emit("❌ Failed to extract file information from Erome. Aborting.")
+            self.finished_signal.emit(0, 0, self.is_cancelled)
+            return
+
+        album_path = os.path.join(self.output_dir, album_name)
+        try:
+            os.makedirs(album_path, exist_ok=True)
+            self.progress_signal.emit(f"   Saving to folder: '{album_path}'")
+        except OSError as e:
+            self.progress_signal.emit(f"❌ Critical error creating directory: {e}")
+            self.finished_signal.emit(0, len(files_to_download), self.is_cancelled)
+            return
+
+        total_files = len(files_to_download)
+        session = requests.Session()
+
+        for i, file_data in enumerate(files_to_download):
+            if self.is_cancelled:
+                self.progress_signal.emit("   Download cancelled by user.")
+                skip_count = total_files - download_count
+                break
+
+            filename = file_data.get('filename', f'untitled_{i+1}.mp4')
+            file_url = file_data.get('url')
+            headers = file_data.get('headers')
+            filepath = os.path.join(album_path, filename)
+            
+            if os.path.exists(filepath):
+                self.progress_signal.emit(f"   -> Skip ({i+1}/{total_files}): '{filename}' already exists.")
+                skip_count += 1
+                continue
+
+            self.progress_signal.emit(f"   Downloading ({i+1}/{total_files}): '{filename}'...")
+            
+            try:
+                response = session.get(file_url, stream=True, headers=headers, timeout=60)
+                response.raise_for_status()
+
+                total_size = int(response.headers.get('content-length', 0))
+                downloaded_size = 0
+                last_update_time = time.time()
+
+                with open(filepath, 'wb') as f:
+                    for chunk in response.iter_content(chunk_size=8192):
+                        if self.is_cancelled:
+                            break
+                        if chunk:
+                            f.write(chunk)
+                            downloaded_size += len(chunk)
+                            current_time = time.time()
+                            if total_size > 0 and (current_time - last_update_time) > 0.5:
+                                self.file_progress_signal.emit(filename, (downloaded_size, total_size))
+                                last_update_time = current_time
+                
+                if self.is_cancelled:
+                    if os.path.exists(filepath): os.remove(filepath)
+                    continue
+                
+                if total_size > 0:
+                    self.file_progress_signal.emit(filename, (total_size, total_size))
+
+                download_count += 1
+            except requests.exceptions.RequestException as e:
+                self.progress_signal.emit(f"   ❌ Failed to download '{filename}'. Error: {e}")
+                if os.path.exists(filepath): os.remove(filepath)
+                skip_count += 1
+            except Exception as e:
+                self.progress_signal.emit(f"   ❌ An unexpected error occurred with '{filename}': {e}")
+                if os.path.exists(filepath): os.remove(filepath)
+                skip_count += 1
+        
+        self.file_progress_signal.emit("", None)
+        self.finished_signal.emit(download_count, skip_count, self.is_cancelled)
+
+    def cancel(self):
+        self.is_cancelled = True
+        self.progress_signal.emit("   Cancellation signal received by Erome thread.")
+
+class BunkrDownloadThread(QThread):
+    """A dedicated QThread for handling Bunkr downloads."""
+    progress_signal = pyqtSignal(str)
+    # --- ADD THIS SIGNAL for detailed file progress ---
+    file_progress_signal = pyqtSignal(str, object)
+    finished_signal = pyqtSignal(int, int, bool, list)
+
+    def __init__(self, url, output_dir, parent=None):
+        super().__init__(parent)
+        self.bunkr_url = url
+        self.output_dir = output_dir
+        self.is_cancelled = False
+
+        class ThreadLogger:
+            def __init__(self, signal_emitter):
+                self.signal_emitter = signal_emitter
+            def info(self, msg, *args, **kwargs):
+                self.signal_emitter.emit(str(msg))
+            def error(self, msg, *args, **kwargs):
+                self.signal_emitter.emit(f"❌ ERROR: {msg}")
+            def warning(self, msg, *args, **kwargs):
+                self.signal_emitter.emit(f"⚠️ WARNING: {msg}")
+            def debug(self, msg, *args, **kwargs):
+                pass
+
+        self.logger = ThreadLogger(self.progress_signal)
+
+    def run(self):
+        download_count = 0
+        skip_count = 0
+        self.progress_signal.emit("=" * 40)
+        self.progress_signal.emit(f"🚀 Starting Bunkr Download for: {self.bunkr_url}")
+        
+        album_name, files_to_download = fetch_bunkr_data(self.bunkr_url, self.logger)
+        
+        if not files_to_download:
+            self.progress_signal.emit("❌ Failed to extract file information from Bunkr. Aborting.")
+            self.finished_signal.emit(0, 0, self.is_cancelled, [])
+            return
+
+        album_path = os.path.join(self.output_dir, album_name)
+        try:
+            os.makedirs(album_path, exist_ok=True)
+            self.progress_signal.emit(f"   Saving to folder: '{album_path}'")
+        except OSError as e:
+            self.progress_signal.emit(f"❌ Critical error creating directory: {e}")
+            self.finished_signal.emit(0, len(files_to_download), self.is_cancelled, [])
+            return
+
+        total_files = len(files_to_download)
+        for i, file_data in enumerate(files_to_download):
+            if self.is_cancelled:
+                self.progress_signal.emit("   Download cancelled by user.")
+                skip_count = total_files - download_count
+                break
+
+            filename = file_data.get('name', 'untitled_file')
+            file_url = file_data.get('url')
+            headers = file_data.get('_http_headers')
+            
+            filename = re.sub(r'[<>:"/\\|?*]', '_', filename).strip()
+            filepath = os.path.join(album_path, filename)
+            
+            if os.path.exists(filepath):
+                self.progress_signal.emit(f"   -> Skip ({i+1}/{total_files}): '{filename}' already exists.")
+                skip_count += 1
+                continue
+
+            self.progress_signal.emit(f"   Downloading ({i+1}/{total_files}): '{filename}'...")
+            
+            try:
+                response = requests.get(file_url, stream=True, headers=headers, timeout=60)
+                response.raise_for_status()
+
+                # --- MODIFY THIS BLOCK to calculate and emit progress ---
+                total_size = int(response.headers.get('content-length', 0))
+                downloaded_size = 0
+                last_update_time = time.time()
+
+                with open(filepath, 'wb') as f:
+                    for chunk in response.iter_content(chunk_size=8192):
+                        if self.is_cancelled:
+                            break
+                        if chunk:
+                            f.write(chunk)
+                            downloaded_size += len(chunk)
+                            current_time = time.time()
+                            if total_size > 0 and (current_time - last_update_time) > 0.5:
+                                self.file_progress_signal.emit(filename, (downloaded_size, total_size))
+                                last_update_time = current_time
+                
+                if self.is_cancelled:
+                    if os.path.exists(filepath): os.remove(filepath)
+                    continue
+
+                # Emit final progress to show 100%
+                if total_size > 0:
+                    self.file_progress_signal.emit(filename, (total_size, total_size))
+
+                download_count += 1
+                # --- END MODIFICATION ---
+
+            except requests.exceptions.RequestException as e:
+                self.progress_signal.emit(f"   ❌ Failed to download '{filename}'. Error: {e}")
+                if os.path.exists(filepath): os.remove(filepath)
+                skip_count += 1
+            except Exception as e:
+                self.progress_signal.emit(f"   ❌ An unexpected error occurred with '{filename}': {e}")
+                if os.path.exists(filepath): os.remove(filepath)
+                skip_count += 1
+        
+        # Clear the progress label when finished
+        self.file_progress_signal.emit("", None)
+        self.finished_signal.emit(download_count, skip_count, self.is_cancelled, [])
+
+    def cancel(self):
+        self.is_cancelled = True
+        self.progress_signal.emit("   Cancellation signal received by Bunkr thread.")
+
 class ExternalLinkDownloadThread (QThread ):
     """A QThread to handle downloading multiple external links sequentially."""
     progress_signal =pyqtSignal (str )
@@ -5911,4 +6553,104 @@ class ExternalLinkDownloadThread (QThread ):
         self .finished_signal .emit ()
 
     def cancel (self ):
-        self .is_cancelled =True 
+        self .is_cancelled =True 
+
+class NhentaiDownloadThread(QThread):
+    progress_signal = pyqtSignal(str)
+    finished_signal = pyqtSignal(int, int, bool)
+
+    IMAGE_SERVERS = [
+        "https://i.nhentai.net", "https://i2.nhentai.net", "https://i3.nhentai.net",
+        "https://i5.nhentai.net", "https://i7.nhentai.net"
+    ]
+    
+    EXTENSION_MAP = {'j': 'jpg', 'p': 'png', 'g': 'gif', 'w': 'webp' }
+
+    def __init__(self, gallery_data, output_dir, parent=None):
+        super().__init__(parent)
+        self.gallery_data = gallery_data
+        self.output_dir = output_dir
+        self.is_cancelled = False
+
+    def run(self):
+        title = self.gallery_data.get("title", {}).get("english", f"gallery_{self.gallery_data.get('id')}")
+        gallery_id = self.gallery_data.get("id")
+        media_id = self.gallery_data.get("media_id")
+        pages_info = self.gallery_data.get("pages", [])
+
+        folder_name = clean_folder_name(title)
+        gallery_path = os.path.join(self.output_dir, folder_name)
+
+        try:
+            os.makedirs(gallery_path, exist_ok=True)
+        except OSError as e:
+            self.progress_signal.emit(f"❌ Critical error creating directory: {e}")
+            self.finished_signal.emit(0, len(pages_info), False)
+            return
+
+        self.progress_signal.emit(f"⬇️ Downloading '{title}' to folder '{folder_name}'...")
+
+        # Create a single cloudscraper instance for the entire download
+        scraper = cloudscraper.create_scraper()
+        download_count = 0
+        skip_count = 0
+
+        for i, page_data in enumerate(pages_info):
+            if self.is_cancelled:
+                break
+
+            page_num = i + 1
+            
+            ext_char = page_data.get('t', 'j')
+            extension = self.EXTENSION_MAP.get(ext_char, 'jpg')
+            
+            relative_path = f"/galleries/{media_id}/{page_num}.{extension}"
+            
+            local_filename = f"{page_num:03d}.{extension}"
+            filepath = os.path.join(gallery_path, local_filename)
+
+            if os.path.exists(filepath):
+                self.progress_signal.emit(f"   -> Skip (Exists): {local_filename}")
+                skip_count += 1
+                continue
+
+            download_successful = False
+            for server in self.IMAGE_SERVERS:
+                if self.is_cancelled:
+                    break
+                
+                full_url = f"{server}{relative_path}"
+                try:
+                    self.progress_signal.emit(f"   Downloading page {page_num}/{len(pages_info)} from {server} ...")
+                    
+                    headers = {
+                        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36',
+                        'Referer': f'https://nhentai.net/g/{gallery_id}/'
+                    }
+
+                    # Use the scraper instance to get the image
+                    response = scraper.get(full_url, headers=headers, timeout=60, stream=True)
+                    
+                    if response.status_code == 200:
+                        with open(filepath, 'wb') as f:
+                            for chunk in response.iter_content(chunk_size=8192):
+                                f.write(chunk)
+                        download_count += 1
+                        download_successful = True
+                        break
+                    else:
+                        self.progress_signal.emit(f"      -> {server} returned status {response.status_code}. Trying next server...")
+
+                except Exception as e:
+                    self.progress_signal.emit(f"      -> {server} failed to connect or timed out: {e}. Trying next server...")
+            
+            if not download_successful:
+                self.progress_signal.emit(f"   ❌ Failed to download {local_filename} from all servers.")
+                skip_count += 1
+
+            time.sleep(0.5)
+
+        self.finished_signal.emit(download_count, skip_count, self.is_cancelled)
+
+    def cancel(self):
+        self.is_cancelled = True

src/utils/network_utils.py

@@ -138,42 +138,54 @@ def prepare_cookies_for_request(use_cookie_flag, cookie_text_input, selected_coo
     return None
 
 
+# In src/utils/network_utils.py
+
 def extract_post_info(url_string):
     """
     Parses a URL string to extract the service, user ID, and post ID.
-    UPDATED to support Discord server/channel URLs.
+    UPDATED to support Discord, Bunkr, and nhentai URLs.
 
     Args:
         url_string (str): The URL to parse.
 
     Returns:
-        tuple: A tuple containing (service, id1, id2). 
+        tuple: A tuple containing (service, id1, id2).
                For posts: (service, user_id, post_id).
                For Discord: ('discord', server_id, channel_id).
+               For Bunkr: ('bunkr', full_url, None).
+               For nhentai: ('nhentai', gallery_id, None).
     """
     if not isinstance(url_string, str) or not url_string.strip():
         return None, None, None
-    
-    try:
-        parsed_url = urlparse(url_string.strip())
-        path_parts = [part for part in parsed_url.path.strip('/').split('/') if part]
-        
-        # Check for new Discord URL format first
-        # e.g., /discord/server/891670433978531850/1252332668805189723
-        if len(path_parts) >= 3 and path_parts[0].lower() == 'discord' and path_parts[1].lower() == 'server':
-            service = 'discord'
-            server_id = path_parts[2]
-            channel_id = path_parts[3] if len(path_parts) >= 4 else None
-            return service, server_id, channel_id
 
-        # Standard creator/post format: /<service>/user/<user_id>/post/<post_id>
+    stripped_url = url_string.strip()
+
+    # --- Bunkr Check ---
+    bunkr_pattern = re.compile(
+        r"(?:https?://)?(?:[a-zA-Z0-9-]+\.)?bunkr\.(?:si|la|ws|red|black|media|site|is|to|ac|cr|ci|fi|pk|ps|sk|ph|su|ru)|bunkrr\.ru"
+    )
+    if bunkr_pattern.search(stripped_url):
+        return 'bunkr', stripped_url, None
+
+    # --- nhentai Check ---
+    nhentai_match = re.search(r'nhentai\.net/g/(\d+)', stripped_url)
+    if nhentai_match:
+        return 'nhentai', nhentai_match.group(1), None
+
+    # --- Kemono/Coomer/Discord Parsing ---
+    try:
+        parsed_url = urlparse(stripped_url)
+        path_parts = [part for part in parsed_url.path.strip('/').split('/') if part]
+
+        if len(path_parts) >= 3 and path_parts[0].lower() == 'discord' and path_parts[1].lower() == 'server':
+            return 'discord', path_parts[2], path_parts[3] if len(path_parts) >= 4 else None
+
         if len(path_parts) >= 3 and path_parts[1].lower() == 'user':
             service = path_parts[0]
             user_id = path_parts[2]
             post_id = path_parts[4] if len(path_parts) >= 5 and path_parts[3].lower() == 'post' else None
             return service, user_id, post_id
-            
-        # API format: /api/v1/<service>/user/<user_id>...
+
         if len(path_parts) >= 5 and path_parts[0:2] == ['api', 'v1'] and path_parts[3].lower() == 'user':
             service = path_parts[2]
             user_id = path_parts[4]
@@ -184,7 +196,7 @@ def extract_post_info(url_string):
         print(f"Debug: Exception during URL parsing for '{url_string}': {e}")
 
     return None, None, None
-
+    
 def get_link_platform(url):
     """
     Identifies the platform of a given URL based on its domain.