0.3.8

Merge dev to master

.travis.yml

@@ -4,19 +4,17 @@ os:
 language: python
 python:
     - 2.7
-    - 3.6
-    - 3.5
-    - 3.4
+    - 3.7
 
 install:
     - python setup.py install
 
 script:
     - echo 268642 > /tmp/test.txt
-    - nhentai --cookie "csrftoken=3c4Mzn4f6NAI1awFqfIh495G3pv5Wade9n63Kx03mkSac8c2QR5vRR4jCwVzb3OR; sessionid=m034e2dyyxgbl9s07hbzgfhvadbap2tk"
+    - nhentai --cookie "csrftoken=xIh7s9d4NB8qSLN7eJZG9064zsV84aHEYFoAU49Ib9anqmoT0pZRw6TIdayLzQuT; sessionid=un101zfgpglsyffdnsm72le4euuisp7t"
     - nhentai --search umaru
     - nhentai --id=152503,146134 -t 10 --output=/tmp/ --cbz
-    - nhentai --tag lolicon
+    - nhentai --tag lolicon --sorting popular
     - nhentai -F
     - nhentai --file /tmp/test.txt
     - nhentai --id=152503,146134 --gen-main --output=/tmp/

MANIFEST.in

@@ -5,3 +5,4 @@ include nhentai/viewer/styles.css
 include nhentai/viewer/scripts.js
 include nhentai/viewer/main.html
 include nhentai/viewer/main.css
+include nhentai/viewer/main.js

README.rst

@@ -74,6 +74,42 @@ Download by tag name:
 
     nhentai --tag lolicon --download --page=2
 
+Download by language:
+
+.. code-block:: bash
+
+    nhentai --language english --download --page=2
+
+Download by artist name:
+
+.. code-block:: bash
+
+    nhentai --artist henreader --download
+
+Download by character name:
+
+.. code-block:: bash
+
+    nhentai --character "kuro von einsbern" --download
+
+Download by parody name:
+
+.. code-block:: bash
+
+    nhentai --parody "the idolmaster" --download
+
+Download by group name:
+
+.. code-block:: bash
+
+    nhentai --group clesta --download
+
+Download using multiple tags (--tag, --character, --paordy and --group supported):
+
+.. code-block:: bash
+
+    nhentai --tag "lolicon, teasing" --artist "tamano kedama, atte nanakusa"
+
 Download your favorites with delay:
 
 .. code-block:: bash
@@ -132,6 +168,7 @@ Other options:
       # Generating options
       --html                generate a html viewer at current directory
       --no-html             don't generate HTML after downloading
+      --gen-main            generate a main viewer contain all the doujin in the folder
       -C, --cbz             generate Comic Book CBZ File
       --rm-origin-dir       remove downloaded doujinshi dir when generated CBZ
                             file.

nhentai/__init__.py

@@ -1,3 +1,3 @@
-__version__ = '0.3.6'
+__version__ = '0.3.8'
 __author__ = 'RicterZ'
 __email__ = 'ricterzheng@gmail.com'

nhentai/cmdline.py

@@ -10,7 +10,7 @@ except ImportError:
 
 import nhentai.constant as constant
 from nhentai import __version__
-from nhentai.utils import urlparse, generate_html, generate_main_html
+from nhentai.utils import urlparse, generate_html, generate_main_html, DB
 from nhentai.logger import logger
 
 try:
@@ -48,8 +48,16 @@ def cmd_parser():
 
     # doujinshi options
     parser.add_option('--id', type='string', dest='id', action='store', help='doujinshi ids set, e.g. 1,2,3')
-    parser.add_option('--search', '-s', type='string', dest='keyword', action='store', help='search doujinshi by keyword')
+    parser.add_option('--search', '-s', type='string', dest='keyword', action='store',
+                      help='search doujinshi by keyword')
     parser.add_option('--tag', type='string', dest='tag', action='store', help='download doujinshi by tag')
+    parser.add_option('--artist', type='string', dest='artist', action='store', help='download doujinshi by artist')
+    parser.add_option('--character', type='string', dest='character', action='store',
+                      help='download doujinshi by character')
+    parser.add_option('--parody', type='string', dest='parody', action='store', help='download doujinshi by parody')
+    parser.add_option('--group', type='string', dest='group', action='store', help='download doujinshi by group')
+    parser.add_option('--language', type='string', dest='language', action='store',
+                      help='download doujinshi by language')
     parser.add_option('--favorites', '-F', action='store_true', dest='favorites',
                       help='list or download your favorites.')
 
@@ -58,6 +66,10 @@ def cmd_parser():
                       help='page number of search results')
     parser.add_option('--max-page', type='int', dest='max_page', action='store', default=1,
                       help='The max page when recursive download tagged doujinshi')
+    parser.add_option('--page-range', type='string', dest='page_range', action='store',
+                      help='page range of favorites.  e.g. 1,2-5,14')
+    parser.add_option('--sorting', dest='sorting', action='store', default='date',
+                      help='sorting of doujinshi (date / popular)', choices=['date', 'popular'])
 
     # download options
     parser.add_option('--output', '-o', type='string', dest='output_dir', action='store', default='',
@@ -89,9 +101,14 @@ def cmd_parser():
     # nhentai options
     parser.add_option('--cookie', type='str', dest='cookie', action='store',
                       help='set cookie of nhentai to bypass Google recaptcha')
+    parser.add_option('--save-download-history', dest='is_save_download_history', action='store_true',
+                      default=False, help='save downloaded doujinshis, whose will be skipped if you re-download them')
+    parser.add_option('--clean-download-history', action='store_true', default=False, dest='clean_download_history',
+                      help='clean download history')
 
     try:
-        sys.argv = list(map(lambda x: unicode(x.decode(sys.stdin.encoding)), sys.argv))
+        sys.argv = [unicode(i.decode(sys.stdin.encoding)) for i in sys.argv]
+        print()
     except (NameError, TypeError):
         pass
     except UnicodeDecodeError:
@@ -104,12 +121,20 @@ def cmd_parser():
         exit(0)
 
     if args.main_viewer and not args.id and not args.keyword and \
-            not args.tag and not args.favorites:
+            not args.tag and not args.artist and not args.character and \
+            not args.parody and not args.group and not args.language and not args.favorites:
         generate_main_html()
         exit(0)
 
-    if os.path.exists(os.path.join(constant.NHENTAI_HOME, 'cookie')):
-        with open(os.path.join(constant.NHENTAI_HOME, 'cookie'), 'r') as f:
+    if args.clean_download_history:
+        with DB() as db:
+            db.clean_all()
+
+        logger.info('Download history cleaned.')
+        exit(0)
+
+    if os.path.exists(constant.NHENTAI_COOKIE):
+        with open(constant.NHENTAI_COOKIE, 'r') as f:
             constant.COOKIE = f.read()
 
     if args.cookie:
@@ -117,7 +142,7 @@ def cmd_parser():
             if not os.path.exists(constant.NHENTAI_HOME):
                 os.mkdir(constant.NHENTAI_HOME)
 
-            with open(os.path.join(constant.NHENTAI_HOME, 'cookie'), 'w') as f:
+            with open(constant.NHENTAI_COOKIE, 'w') as f:
                 f.write(args.cookie)
         except Exception as e:
             logger.error('Cannot create NHENTAI_HOME: {}'.format(str(e)))
@@ -126,8 +151,8 @@ def cmd_parser():
         logger.info('Cookie saved.')
         exit(0)
 
-    if os.path.exists(os.path.join(constant.NHENTAI_HOME, 'proxy')):
-        with open(os.path.join(constant.NHENTAI_HOME, 'proxy'), 'r') as f:
+    if os.path.exists(constant.NHENTAI_PROXY):
+        with open(constant.NHENTAI_PROXY, 'r') as f:
             link = f.read()
             constant.PROXY = {'http': link, 'https': link}
 
@@ -140,8 +165,9 @@ def cmd_parser():
             if proxy_url.scheme not in ('http', 'https'):
                 logger.error('Invalid protocol \'{0}\' of proxy, ignored'.format(proxy_url.scheme))
             else:
-                with open(os.path.join(constant.NHENTAI_HOME, 'proxy'), 'w') as f:
+                with open(constant.NHENTAI_PROXY, 'w') as f:
                     f.write(args.proxy)
+
         except Exception as e:
             logger.error('Cannot create NHENTAI_HOME: {}'.format(str(e)))
             exit(1)
@@ -155,21 +181,23 @@ def cmd_parser():
             exit(1)
 
     if args.id:
-        _ = map(lambda id_: id_.strip(), args.id.split(','))
-        args.id = set(map(int, filter(lambda id_: id_.isdigit(), _)))
+        _ = [i.strip() for i in args.id.split(',')]
+        args.id = set(int(i) for i in _ if i.isdigit())
 
     if args.file:
         with open(args.file, 'r') as f:
-            _ = map(lambda id: id.strip(), f.readlines())
-            args.id = set(map(int, filter(lambda id_: id_.isdigit(), _)))
+            _ = [i.strip() for i in f.readlines()]
+            args.id = set(int(i) for i in _ if i.isdigit())
 
     if (args.is_download or args.is_show) and not args.id and not args.keyword and \
-            not args.tag and not args.favorites:
+            not args.tag and not args.artist and not args.character and \
+            not args.parody and not args.group and not args.language and not args.favorites:
         logger.critical('Doujinshi id(s) are required for downloading')
         parser.print_help()
         exit(1)
 
-    if not args.keyword and not args.id and not args.tag and not args.favorites:
+    if not args.keyword and not args.id and not args.tag and not args.artist and \
+            not args.character and not args.parody and not args.group and not args.language and not args.favorites:
         parser.print_help()
         exit(1)
 

nhentai/command.py

@@ -6,12 +6,12 @@ import platform
 import time
 
 from nhentai.cmdline import cmd_parser, banner
-from nhentai.parser import doujinshi_parser, search_parser, print_doujinshi, favorites_parser, tag_parser, login
+from nhentai.parser import doujinshi_parser, search_parser, print_doujinshi, favorites_parser, tag_parser
 from nhentai.doujinshi import Doujinshi
 from nhentai.downloader import Downloader
 from nhentai.logger import logger
 from nhentai.constant import BASE_URL
-from nhentai.utils import generate_html, generate_cbz, generate_main_html, check_cookie
+from nhentai.utils import generate_html, generate_cbz, generate_main_html, check_cookie, signal_handler, DB
 
 
 def main():
@@ -19,7 +19,7 @@ def main():
     options = cmd_parser()
     logger.info('Using mirror: {0}'.format(BASE_URL))
 
-    from nhentai.constant import PROXY 
+    from nhentai.constant import PROXY
     # constant.PROXY will be changed after cmd_parser()
     if PROXY != {}:
         logger.info('Using proxy: {0}'.format(PROXY))
@@ -27,6 +27,7 @@ def main():
     # check your cookie
     check_cookie()
 
+    doujinshis = []
     doujinshi_ids = []
     doujinshi_list = []
 
@@ -34,46 +35,75 @@ def main():
         if not options.is_download:
             logger.warning('You do not specify --download option')
 
-        doujinshis = favorites_parser()
-        print_doujinshi(doujinshis)
-        if options.is_download and doujinshis:
-            doujinshi_ids = map(lambda d: d['id'], doujinshis)
+        doujinshis = favorites_parser(options.page_range)
 
     elif options.tag:
-        doujinshis = tag_parser(options.tag, max_page=options.max_page)
-        print_doujinshi(doujinshis)
-        if options.is_download and doujinshis:
-            doujinshi_ids = map(lambda d: d['id'], doujinshis)
+        doujinshis = tag_parser(options.tag, sorting=options.sorting, max_page=options.max_page)
+
+    elif options.artist:
+        doujinshis = tag_parser(options.artist, max_page=options.max_page, index=1)
+
+    elif options.character:
+        doujinshis = tag_parser(options.character, max_page=options.max_page, index=2)
+
+    elif options.parody:
+        doujinshis = tag_parser(options.parody, max_page=options.max_page, index=3)
+
+    elif options.group:
+        doujinshis = tag_parser(options.group, max_page=options.max_page, index=4)
+
+    elif options.language:
+        doujinshis = tag_parser(options.language, max_page=options.max_page, index=5)
 
     elif options.keyword:
-        doujinshis = search_parser(options.keyword, options.page)
-        print_doujinshi(doujinshis)
-        if options.is_download:
-            doujinshi_ids = map(lambda d: d['id'], doujinshis)
+        doujinshis = search_parser(options.keyword, sorting=options.sorting, page=options.page)
 
     elif not doujinshi_ids:
         doujinshi_ids = options.id
 
+    print_doujinshi(doujinshis)
+    if options.is_download and doujinshis:
+        doujinshi_ids = [i['id'] for i in doujinshis]
+
+        if options.is_save_download_history:
+            with DB() as db:
+                data = set(db.get_all())
+
+            doujinshi_ids = list(set(doujinshi_ids) - data)
+
     if doujinshi_ids:
-        for id_ in doujinshi_ids:
+        for i, id_ in enumerate(doujinshi_ids):
             if options.delay:
                 time.sleep(options.delay)
+
             doujinshi_info = doujinshi_parser(id_)
-            doujinshi_list.append(Doujinshi(name_format=options.name_format, **doujinshi_info))
+
+            if doujinshi_info:
+                doujinshi_list.append(Doujinshi(name_format=options.name_format, **doujinshi_info))
+
+            if (i + 1) % 10 == 0:
+                logger.info('Progress: %d / %d' % (i + 1, len(doujinshi_ids)))
 
     if not options.is_show:
-        downloader = Downloader(path=options.output_dir,
-                                thread=options.threads, timeout=options.timeout, delay=options.delay)
+        downloader = Downloader(path=options.output_dir, size=options.threads,
+                                timeout=options.timeout, delay=options.delay)
 
         for doujinshi in doujinshi_list:
+
             doujinshi.downloader = downloader
             doujinshi.download()
+            if options.is_save_download_history:
+                with DB() as db:
+                    db.add_one(doujinshi.id)
+
             if not options.is_nohtml and not options.is_cbz:
                 generate_html(options.output_dir, doujinshi)
             elif options.is_cbz:
                 generate_cbz(options.output_dir, doujinshi, options.rm_origin_dir)
+
         if options.main_viewer:
             generate_main_html(options.output_dir)
+
         if not platform.system() == 'Windows':
             logger.log(15, '🍻 All done.')
         else:
@@ -83,12 +113,8 @@ def main():
         [doujinshi.show() for doujinshi in doujinshi_list]
 
 
-def signal_handler(signal, frame):
-    logger.error('Ctrl-C signal received. Stopping...')
-    exit(1)
-
-
 signal.signal(signal.SIGINT, signal_handler)
 
+
 if __name__ == '__main__':
     main()

nhentai/constant.py

@@ -17,7 +17,13 @@ __api_suspended_SEARCH_URL = '%s/api/galleries/search' % BASE_URL
 DETAIL_URL = '%s/g' % BASE_URL
 SEARCH_URL = '%s/search/' % BASE_URL
 
-TAG_URL = '%s/tag' % BASE_URL
+TAG_URL = ['%s/tag' % BASE_URL,
+           '%s/artist' % BASE_URL,
+           '%s/character' % BASE_URL,
+           '%s/parody' % BASE_URL,
+           '%s/group' % BASE_URL,
+           '%s/language' % BASE_URL]
+
 TAG_API_URL = '%s/api/galleries/tagged' % BASE_URL
 LOGIN_URL = '%s/login/' % BASE_URL
 CHALLENGE_URL = '%s/challenge' % BASE_URL
@@ -27,6 +33,9 @@ u = urlparse(BASE_URL)
 IMAGE_URL = '%s://i.%s/galleries' % (u.scheme, u.hostname)
 
 NHENTAI_HOME = os.path.join(os.getenv('HOME', tempfile.gettempdir()), '.nhentai')
+NHENTAI_PROXY = os.path.join(NHENTAI_HOME, 'proxy')
+NHENTAI_COOKIE = os.path.join(NHENTAI_HOME, 'cookie')
+NHENTAI_HISTORY = os.path.join(NHENTAI_HOME, 'history.sqlite3')
 
 PROXY = {}
 

nhentai/downloader.py

@@ -1,10 +1,15 @@
 # coding: utf-
 from __future__ import unicode_literals, print_function
+
+import multiprocessing
+import signal
+
 from future.builtins import str as text
 import os
 import requests
 import threadpool
 import time
+import multiprocessing as mp
 
 try:
     from urllib.parse import urlparse
@@ -13,29 +18,25 @@ except ImportError:
 
 from nhentai.logger import logger
 from nhentai.parser import request
-from nhentai.utils import Singleton
-
+from nhentai.utils import Singleton, signal_handler
 
 requests.packages.urllib3.disable_warnings()
+semaphore = mp.Semaphore()
 
 
-class NhentaiImageNotExistException(Exception):
+class NHentaiImageNotExistException(Exception):
     pass
 
 
 class Downloader(Singleton):
 
-    def __init__(self, path='', thread=1, timeout=30, delay=0):
-        if not isinstance(thread, (int, )) or thread < 1 or thread > 15:
-            raise ValueError('Invalid threads count')
+    def __init__(self, path='', size=5, timeout=30, delay=0):
+        self.size = size
         self.path = str(path)
-        self.thread_count = thread
-        self.threads = []
-        self.thread_pool = None
         self.timeout = timeout
         self.delay = delay
 
-    def _download(self, url, folder='', filename='', retried=0):
+    def download_(self, url, folder='', filename='', retried=0):
         if self.delay:
             time.sleep(self.delay)
         logger.info('Starting to download {0} ...'.format(url))
@@ -54,9 +55,9 @@ class Downloader(Singleton):
                     try:
                         response = request('get', url, stream=True, timeout=self.timeout)
                         if response.status_code != 200:
-                            raise NhentaiImageNotExistException
+                            raise NHentaiImageNotExistException
 
-                    except NhentaiImageNotExistException as e:
+                    except NHentaiImageNotExistException as e:
                         raise e
 
                     except Exception as e:
@@ -78,27 +79,37 @@ class Downloader(Singleton):
         except (requests.HTTPError, requests.Timeout) as e:
             if retried < 3:
                 logger.warning('Warning: {0}, retrying({1}) ...'.format(str(e), retried))
-                return 0, self._download(url=url, folder=folder, filename=filename, retried=retried+1)
+                return 0, self.download_(url=url, folder=folder, filename=filename, retried=retried+1)
             else:
                 return 0, None
 
-        except NhentaiImageNotExistException as e:
+        except NHentaiImageNotExistException as e:
             os.remove(os.path.join(folder, base_filename.zfill(3) + extension))
             return -1, url
 
         except Exception as e:
+            import traceback
+            traceback.print_stack()
             logger.critical(str(e))
             return 0, None
 
+        except KeyboardInterrupt:
+            return -3, None
+
         return 1, url
 
-    def _download_callback(self, request, result):
+    def _download_callback(self, result):
         result, data = result
         if result == 0:
             logger.warning('fatal errors occurred, ignored')
             # exit(1)
         elif result == -1:
             logger.warning('url {} return status code 404'.format(data))
+        elif result == -2:
+            logger.warning('Ctrl-C pressed, exiting sub processes ...')
+        elif result == -3:
+            # workers wont be run, just pass
+            pass
         else:
             logger.log(15, '{0} downloaded successfully'.format(data))
 
@@ -115,14 +126,34 @@ class Downloader(Singleton):
                 os.makedirs(folder)
             except EnvironmentError as e:
                 logger.critical('{0}'.format(str(e)))
-                exit(1)
+
         else:
             logger.warn('Path \'{0}\' already exist.'.format(folder))
 
-        queue = [([url], {'folder': folder}) for url in queue]
+        queue = [(self, url, folder) for url in queue]
 
-        self.thread_pool = threadpool.ThreadPool(self.thread_count)
-        requests_ = threadpool.makeRequests(self._download, queue, self._download_callback)
-        [self.thread_pool.putRequest(req) for req in requests_]
+        pool = multiprocessing.Pool(self.size, init_worker)
 
-        self.thread_pool.wait()
+        for item in queue:
+            pool.apply_async(download_wrapper, args=item, callback=self._download_callback)
+
+        pool.close()
+        pool.join()
+
+
+def download_wrapper(obj, url, folder=''):
+    if semaphore.get_value():
+        return Downloader.download_(obj, url=url, folder=folder)
+    else:
+        return -3, None
+
+
+def init_worker():
+    signal.signal(signal.SIGINT, subprocess_signal)
+
+
+def subprocess_signal(signal, frame):
+    if semaphore.acquire(timeout=1):
+        logger.warning('Ctrl-C pressed, exiting sub processes ...')
+
+    raise KeyboardInterrupt

nhentai/parser.py

@@ -1,10 +1,9 @@
 # coding: utf-8
 from __future__ import unicode_literals, print_function
 
+import sys
 import os
 import re
-import threadpool
-import requests
 import time
 from bs4 import BeautifulSoup
 from tabulate import tabulate
@@ -65,7 +64,7 @@ def _get_title_and_id(response):
     return result
 
 
-def favorites_parser():
+def favorites_parser(page_range=''):
     result = []
     html = BeautifulSoup(request('get', constant.FAV_URL).content, 'html.parser')
     count = html.find('span', attrs={'class': 'count'})
@@ -89,7 +88,12 @@ def favorites_parser():
     if os.getenv('DEBUG'):
         pages = 1
 
-    for page in range(1, pages + 1):
+    page_range_list = range(1, pages + 1)
+    if page_range:
+        logger.info('page range is {0}'.format(page_range))
+        page_range_list = page_range_parser(page_range, pages)
+
+    for page in page_range_list:
         try:
             logger.info('Getting doujinshi ids of page %d' % page)
             resp = request('get', constant.FAV_URL + '?page=%d' % page).content
@@ -101,6 +105,32 @@ def favorites_parser():
     return result
 
 
+def page_range_parser(page_range, max_page_num):
+    pages = set()
+    ranges = str.split(page_range, ',')
+    for range_str in ranges:
+        idx = range_str.find('-')
+        if idx == -1:
+            try:
+                page = int(range_str)
+                if page <= max_page_num:
+                    pages.add(page)
+            except ValueError:
+                logger.error('page range({0}) is not valid'.format(page_range))
+        else:
+            try:
+                left = int(range_str[:idx])
+                right = int(range_str[idx+1:])
+                if right > max_page_num:
+                    right = max_page_num
+                for page in range(left, right+1):
+                    pages.add(page)
+            except ValueError:
+                logger.error('page range({0}) is not valid'.format(page_range))
+    
+    return list(pages)    
+
+
 def doujinshi_parser(id_):
     if not isinstance(id_, (int,)) and (isinstance(id_, (str,)) and not id_.isdigit()):
         raise Exception('Doujinshi id({0}) is not valid'.format(id_))
@@ -121,8 +151,8 @@ def doujinshi_parser(id_):
             return doujinshi_parser(str(id_))
 
     except Exception as e:
-        logger.critical(str(e))
-        raise SystemExit
+        logger.warn('Error: {}, ignored'.format(str(e)))
+        return None
 
     html = BeautifulSoup(response, 'html.parser')
     doujinshi_info = html.find('div', attrs={'id': 'info'})
@@ -134,7 +164,7 @@ def doujinshi_parser(id_):
     doujinshi['subtitle'] = subtitle.text if subtitle else ''
 
     doujinshi_cover = html.find('div', attrs={'id': 'cover'})
-    img_id = re.search('/galleries/([\d]+)/cover\.(jpg|png)$', doujinshi_cover.a.img.attrs['data-src'])
+    img_id = re.search('/galleries/([\d]+)/cover\.(jpg|png|gif)$', doujinshi_cover.a.img.attrs['data-src'])
 
     ext = []
     for i in html.find_all('div', attrs={'class': 'thumb-container'}):
@@ -158,7 +188,7 @@ def doujinshi_parser(id_):
 
     # gain information of the doujinshi
     information_fields = doujinshi_info.find_all('div', attrs={'class': 'field-name'})
-    needed_fields = ['Characters', 'Artists', 'Languages', 'Tags']
+    needed_fields = ['Characters', 'Artists', 'Languages', 'Tags', 'Parodies', 'Groups', 'Categories']
     for field in information_fields:
         field_name = field.contents[0].strip().strip(':')
         if field_name in needed_fields:
@@ -166,17 +196,15 @@ def doujinshi_parser(id_):
                     field.find_all('a', attrs={'class': 'tag'})]
             doujinshi[field_name.lower()] = ', '.join(data)
 
+    time_field = doujinshi_info.find('time')
+    if time_field.has_attr('datetime'):
+        doujinshi['date'] = time_field['datetime']
     return doujinshi
 
 
-def search_parser(keyword, page):
+def search_parser(keyword, sorting='date', page=1):
     logger.debug('Searching doujinshis of keyword {0}'.format(keyword))
-    try:
-        response = request('get', url=constant.SEARCH_URL, params={'q': keyword, 'page': page}).content
-    except requests.ConnectionError as e:
-        logger.critical(e)
-        logger.warn('If you are in China, please configure the proxy to fu*k GFW.')
-        raise SystemExit
+    response = request('get', url=constant.SEARCH_URL, params={'q': keyword, 'page': page, 'sort': sorting}).content
 
     result = _get_title_and_id(response)
     if not result:
@@ -194,16 +222,33 @@ def print_doujinshi(doujinshi_list):
                 tabulate(tabular_data=doujinshi_list, headers=headers, tablefmt='rst'))
 
 
-def tag_parser(tag_name, max_page=1):
+def tag_parser(tag_name, sorting='date', max_page=1, index=0):
     result = []
     tag_name = tag_name.lower()
-    tag_name = tag_name.replace(' ', '-')
+    if ',' in tag_name:
+        tag_name = [i.strip().replace(' ', '-') for i in tag_name.split(',')]
+    else:
+        tag_name = tag_name.strip().replace(' ', '-')
+    if sorting == 'date':
+        sorting = ''
 
     for p in range(1, max_page + 1):
-        logger.debug('Fetching page {0} for doujinshi with tag \'{1}\''.format(p, tag_name))
-        response = request('get', url='%s/%s/?page=%d' % (constant.TAG_URL, tag_name, p)).content
+        if sys.version_info >= (3, 0, 0):
+            unicode_ = str
+        else:
+            unicode_ = unicode
+
+        if isinstance(tag_name, (str, unicode_)):
+            logger.debug('Fetching page {0} for doujinshi with tag \'{1}\''.format(p, tag_name))
+            response = request('get', url='%s/%s/%s?page=%d' % (constant.TAG_URL[index], tag_name, sorting, p)).content
+            result += _get_title_and_id(response)
+        else:
+            for i in tag_name:
+                logger.debug('Fetching page {0} for doujinshi with tag \'{1}\''.format(p, i))
+                response = request('get',
+                                   url='%s/%s/%s?page=%d' % (constant.TAG_URL[index], i, sorting, p)).content
+                result += _get_title_and_id(response)
 
-        result += _get_title_and_id(response)
         if not result:
             logger.error('Cannot find doujinshi id of tag \'{0}\''.format(tag_name))
             return
@@ -214,13 +259,13 @@ def tag_parser(tag_name, max_page=1):
     return result
 
 
-def __api_suspended_search_parser(keyword, page):
+def __api_suspended_search_parser(keyword, sorting, page):
     logger.debug('Searching doujinshis using keywords {0}'.format(keyword))
     result = []
     i = 0
     while i < 5:
         try:
-            response = request('get', url=constant.SEARCH_URL, params={'query': keyword, 'page': page}).json()
+            response = request('get', url=constant.SEARCH_URL, params={'query': keyword, 'page': page, 'sort': sorting}).json()
         except Exception as e:
             i += 1
             if not i < 5:
@@ -244,10 +289,10 @@ def __api_suspended_search_parser(keyword, page):
     return result
 
 
-def __api_suspended_tag_parser(tag_id, max_page=1):
+def __api_suspended_tag_parser(tag_id, sorting, max_page=1):
     logger.info('Searching for doujinshi with tag id {0}'.format(tag_id))
     result = []
-    response = request('get', url=constant.TAG_API_URL, params={'sort': 'popular', 'tag_id': tag_id}).json()
+    response = request('get', url=constant.TAG_API_URL, params={'sort': sorting, 'tag_id': tag_id}).json()
     page = max_page if max_page <= response['num_pages'] else int(response['num_pages'])
 
     for i in range(1, page + 1):
@@ -255,7 +300,7 @@ def __api_suspended_tag_parser(tag_id, max_page=1):
 
         if page != 1:
             response = request('get', url=constant.TAG_API_URL,
-                               params={'sort': 'popular', 'tag_id': tag_id}).json()
+                               params={'sort': sorting, 'tag_id': tag_id}).json()
     for row in response['result']:
         title = row['title']['english']
         title = title[:85] + '..' if len(title) > 85 else title
@@ -291,11 +336,11 @@ def __api_suspended_doujinshi_parser(id_):
     doujinshi['name'] = response['title']['english']
     doujinshi['subtitle'] = response['title']['japanese']
     doujinshi['img_id'] = response['media_id']
-    doujinshi['ext'] = ''.join(map(lambda s: s['t'], response['images']['pages']))
+    doujinshi['ext'] = ''.join([i['t'] for i in response['images']['pages']])
     doujinshi['pages'] = len(response['images']['pages'])
 
     # gain information of the doujinshi
-    needed_fields = ['character', 'artist', 'language', 'tag']
+    needed_fields = ['character', 'artist', 'language', 'tag', 'parody', 'group', 'category']
     for tag in response['tags']:
         tag_type = tag['type']
         if tag_type in needed_fields:

nhentai/serializer.py

@@ -0,0 +1,80 @@
+# coding: utf-8
+import json
+import os
+
+
+def serialize(doujinshi, dir):
+    metadata = {'title': doujinshi.name,
+                'subtitle': doujinshi.info.subtitle}
+    if doujinshi.info.date:
+        metadata['upload_date'] = doujinshi.info.date
+    if doujinshi.info.parodies:
+        metadata['parody'] = [i.strip() for i in doujinshi.info.parodies.split(',')]
+    if doujinshi.info.characters:
+        metadata['character'] = [i.strip() for i in doujinshi.info.characters.split(',')]
+    if doujinshi.info.tags:
+        metadata['tag'] = [i.strip() for i in doujinshi.info.tags.split(',')]
+    if doujinshi.info.artists:
+        metadata['artist'] = [i.strip() for i in doujinshi.info.artists.split(',')]
+    if doujinshi.info.groups:
+        metadata['group'] = [i.strip() for i in doujinshi.info.groups.split(',')]
+    if doujinshi.info.languages:
+        metadata['language'] = [i.strip() for i in doujinshi.info.languages.split(',')]
+    metadata['category'] = doujinshi.info.categories
+    metadata['URL'] = doujinshi.url
+    metadata['Pages'] = doujinshi.pages
+
+    with open(os.path.join(dir, 'metadata.json'), 'w') as f:
+        json.dump(metadata, f, separators=','':')
+
+
+def merge_json():
+    lst = []
+    output_dir = "./"
+    os.chdir(output_dir)
+    doujinshi_dirs = next(os.walk('.'))[1]
+    for folder in doujinshi_dirs:
+        files = os.listdir(folder)
+        if 'metadata.json' not in files:
+            continue
+        data_folder = output_dir + folder + '/' + 'metadata.json'
+        json_file = open(data_folder, 'r')
+        json_dict = json.load(json_file)
+        json_dict['Folder'] = folder
+        lst.append(json_dict)
+    return lst
+
+
+def serialize_unique(lst):
+    dictionary = {}
+    parody = []
+    character = []
+    tag = []
+    artist = []
+    group = []
+    for dic in lst:
+        if 'parody' in dic:
+            parody.extend([i for i in dic['parody']])
+        if 'character' in dic:
+            character.extend([i for i in dic['character']])
+        if 'tag' in dic:
+            tag.extend([i for i in dic['tag']])
+        if 'artist' in dic:
+            artist.extend([i for i in dic['artist']])
+        if 'group' in dic:
+            group.extend([i for i in dic['group']])
+    dictionary['parody'] = list(set(parody))
+    dictionary['character'] = list(set(character))
+    dictionary['tag'] = list(set(tag))
+    dictionary['artist'] = list(set(artist))
+    dictionary['group'] = list(set(group))
+    return dictionary
+
+
+def set_js_database():
+    with open('data.js', 'w') as f:
+        indexed_json = merge_json()
+        unique_json = json.dumps(serialize_unique(indexed_json), separators=','':')
+        indexed_json = json.dumps(indexed_json, separators=','':')
+        f.write('var data = ' + indexed_json)
+        f.write(';\nvar tags = ' + unique_json)

nhentai/utils.py

@@ -8,9 +8,11 @@ import string
 import zipfile
 import shutil
 import requests
+import sqlite3
 
 from nhentai import constant
 from nhentai.logger import logger
+from nhentai.serializer import serialize, set_js_database
 
 
 def request(method, url, **kwargs):
@@ -79,19 +81,19 @@ def generate_html(output_dir='.', doujinshi_obj=None):
 
         image_html += '<img src="{0}" class="image-item"/>\n'\
             .format(image)
-
     html = readfile('viewer/index.html')
     css = readfile('viewer/styles.css')
     js = readfile('viewer/scripts.js')
 
     if doujinshi_obj is not None:
-        title = doujinshi_obj.name
+        serialize(doujinshi_obj, doujinshi_dir)
+        name = doujinshi_obj.name
         if sys.version_info < (3, 0):
-            title = title.encode('utf-8')
+            name = doujinshi_obj.name.encode('utf-8')
     else:
-        title = 'nHentai HTML Viewer'
+        name = {'title': 'nHentai HTML Viewer'}
 
-    data = html.format(TITLE=title, IMAGES=image_html, SCRIPTS=js, STYLES=css)
+    data = html.format(TITLE=name, IMAGES=image_html, SCRIPTS=js, STYLES=css)
     try:
         if sys.version_info < (3, 0):
             with open(os.path.join(doujinshi_dir, 'index.html'), 'w') as f:
@@ -112,10 +114,12 @@ def generate_main_html(output_dir='./'):
     Default output folder will be the CLI path.
     """
 
-    count = 0
     image_html = ''
+
     main = readfile('viewer/main.html')
     css = readfile('viewer/main.css')
+    js = readfile('viewer/main.js')
+
     element = '\n\
             <div class="gallery-favorite">\n\
                 <div class="gallery">\n\
@@ -130,12 +134,10 @@ def generate_main_html(output_dir='./'):
     doujinshi_dirs = next(os.walk('.'))[1]
 
     for folder in doujinshi_dirs:
-
         files = os.listdir(folder)
         files.sort()
 
         if 'index.html' in files:
-            count += 1
             logger.info('Add doujinshi \'{}\''.format(folder))
         else:
             continue
@@ -147,18 +149,19 @@ def generate_main_html(output_dir='./'):
             title = 'nHentai HTML Viewer'
 
         image_html += element.format(FOLDER=folder, IMAGE=image, TITLE=title)
-
     if image_html == '':
         logger.warning('None index.html found, --gen-main paused.')
         return
     try:
-        data = main.format(STYLES=css, COUNT=count, PICTURE=image_html)
+        data = main.format(STYLES=css, SCRIPTS=js, PICTURE=image_html)
         if sys.version_info < (3, 0):
             with open('./main.html', 'w') as f:
                 f.write(data)
         else:
             with open('./main.html', 'wb') as f:
                 f.write(data.encode('utf-8'))
+        shutil.copy(os.path.dirname(__file__)+'/viewer/logo.png', './')
+        set_js_database()
         logger.log(
             15, 'Main Viewer has been write to \'{0}main.html\''.format(output_dir))
     except Exception as e:
@@ -205,5 +208,37 @@ an invalid filename.
         filename = filename[:100] + '...]'
 
     # Remove [] from filename
-    filename = filename.replace('[]', '')
+    filename = filename.replace('[]', '').strip()
     return filename
+
+
+def signal_handler(signal, frame):
+    logger.error('Ctrl-C signal received. Stopping...')
+    exit(1)
+
+
+class DB(object):
+    conn = None
+    cur = None
+
+    def __enter__(self):
+        self.conn = sqlite3.connect(constant.NHENTAI_HISTORY)
+        self.cur = self.conn.cursor()
+        self.cur.execute('CREATE TABLE IF NOT EXISTS download_history (id text)')
+        self.conn.commit()
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.conn.close()
+
+    def clean_all(self):
+        self.cur.execute('DELETE FROM download_history WHERE 1')
+        self.conn.commit()
+
+    def add_one(self, data):
+        self.cur.execute('INSERT INTO download_history VALUES (?)', [data])
+        self.conn.commit()
+
+    def get_all(self):
+        data = self.cur.execute('SELECT id FROM download_history')
+        return [i[0] for i in data]

nhentai/viewer/index.html

@@ -2,6 +2,7 @@
 <html>
 <head>
     <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes, viewport-fit=cover" />
     <title>{TITLE}</title>
     <style>
 {STYLES}

nhentai/viewer/main.css

@@ -1,79 +1,14 @@
 /*! normalize.css v5.0.0 | MIT License | github.com/necolas/normalize.css */
 /* Original from https://static.nhentai.net/css/main_style.9bb9b703e601.css */
-html {
-    font-family: sans-serif;
-    line-height: 1.15;
-    -ms-text-size-adjust: 100%;
-    -webkit-text-size-adjust: 100%
-}
-
-body {
-    margin: 0
-}
-
-h1 {
-    font-size: 2em;
-    margin: .67em 0
-}
-
 a {
     background-color: transparent;
     -webkit-text-decoration-skip: objects
 }
 
-a:active,a:hover {
-    outline-width: 0
-}
-
-abbr[title] {
-    border-bottom: none;
-    text-decoration: underline;
-    text-decoration: underline dotted
-}
-
-b,strong {
-    font-weight: inherit
-}
-
-b,strong {
-    font-weight: bolder
-}
-
-code,kbd,samp {
-    font-family: monospace,monospace;
-    font-size: 1em
-}
-
-small {
-    font-size: 80%
-}
-
-sub,sup {
-    font-size: 75%;
-    line-height: 0;
-    position: relative;
-    vertical-align: baseline
-}
-
-sub {
-    bottom: -.25em
-}
-
-sup {
-    top: -.5em
-}
-
 img {
     border-style: none
 }
 
-label {
-    display: block;
-    font-weight: 700;
-    text-align: justify;
-    white-space: nowrap
-}
-
 html {
     box-sizing: border-box
 }
@@ -82,10 +17,6 @@ html {
     box-sizing: inherit
 }
 
-h1,h2,h3,h4,h5,h6 {
-    font-weight: 700
-}
-
 body,html {
     font-family: 'Noto Sans',sans-serif;
     font-size: 14px;
@@ -104,25 +35,6 @@ a {
     color: #34495e
 }
 
-a:hover {
-    text-decoration: none;
-    color: #ed2553
-}
-
-a.count {
-    color: #999
-}
-
-a.bold {
-    font-weight: 700
-}
-
-code {
-    color: #ed2553;
-    border: 1px solid #fbd3dd;
-    background-color: #fef0f3
-}
-
 blockquote {
     border: 0
 }
@@ -130,15 +42,15 @@ blockquote {
 .container {
     display: block;
     clear: both;
-    margin-left: auto;
-    margin-right: auto;
-    margin-bottom: 10px;
-    margin-top: 10px;
-    padding: 10px;
+    margin-left: 15rem;
+    margin-right: 0.5rem;
+    margin-bottom: 5px;
+    margin-top: 5px;
+    padding: 4px;
     border-radius: 9px;
     background-color: #ecf0f1;
-    width: 100%;
-    max-width: 1200px
+    width: 100% - 15rem;
+    max-width: 1500px
 }
 
 .gallery,.gallery-favorite,.thumb-container {
@@ -156,7 +68,6 @@ blockquote {
     .gallery,.gallery-favorite,.thumb-container {
         width:19%;
         margin: 3px;
-        margin-bottom: 8px
     }
 }
 
@@ -222,6 +133,186 @@ blockquote {
     width: 100%
 }
 
+.sidenav {
+  height: 100%;
+  width: 15rem;
+  position: fixed;
+  z-index: 1;
+  top: 0;
+  left: 0;
+  background-color: #0d0d0d;
+  overflow: hidden;
+
+  padding-top: 20px;
+  -webkit-touch-callout: none; /* iOS Safari */
+  -webkit-user-select: none; /* Safari */
+  -khtml-user-select: none; /* Konqueror HTML */
+  -moz-user-select: none; /* Old versions of Firefox */
+  ms-user-select: none; /* Internet Explorer/Edge */
+  user-select: none;
+}
+
+.sidenav a {
+  background-color: #eee;
+  padding: 5px 0px 5px 15px;
+  text-decoration: none;
+  font-size: 15px;
+  color: #0d0d0d9;
+  display: block;
+  text-align: left;
+}
+.sidenav img {
+	width:100%;
+	padding: 0px 5px 0px 5px;
+
+}
+
+.sidenav h1 {
+    font-size: 1.5em;
+	margin: 0px 0px 10px;
+}
+
+.sidenav a:hover {
+  color: white;
+  background-color: #EC2754;
+}
+
+.accordion {
+  font-weight: bold;
+  background-color: #eee;
+  color: #444;
+  padding: 10px 0px 5px 8px;
+  width: 100%;
+  border: none;
+  text-align: left;
+  outline: none;
+  font-size: 15px;
+  transition: 0.4s;
+  cursor:pointer;
+}
+
+.accordion:hover {
+  background-color: #ddd;
+}
+
+.accordion.active{
+  background-color:#ddd;
+}
+
+.nav-btn {
+  font-weight: bold;
+  background-color: #eee;
+  color: #444;
+  padding: 8px 8px 5px 9px;
+  width: 100%;
+  border: none;
+  text-align: left;
+  outline: none;
+  font-size: 15px;
+}
+
+.hidden {
+  display:none;
+}
+
+.nav-btn a{
+  font-weight: normal;
+  padding-right: 10px;
+  border-radius: 15px;
+  cursor: crosshair
+}
+
+.options {
+  display:block;
+  padding: 0px 0px 0px 0px;
+  background-color: #eee;
+  max-height: 0;
+  overflow: hidden;
+  transition: max-height 0.2s ease-out;
+  cursor:pointer;
+}
+
+.search{
+  background-color: #eee;
+  padding-right:40px;
+  white-space: nowrap;
+  padding-top: 5px;
+  height:43px;
+
+}
+
+.search input{
+  border-top-right-radius:10px;
+  padding-top:0;
+  padding-bottom:0;
+  font-size:1em;
+  width:100%;
+  height:38px;
+  vertical-align:top;
+}
+
+.btn{
+  border-top-left-radius:10px;
+  color:#fff;
+  font-size:100%;
+  padding: 8px;
+  width:38px;
+  background-color:#ed2553;
+}
+
+#tags{
+    text-align:left;
+    display: flex;
+	width:15rem;
+    justify-content: start;
+	margin: 2px 2px 2px 0px;
+	flex-wrap: wrap;
+}
+
+.btn-2{
+  font-weight:700;
+  padding-right:0.5rem;
+  padding-left:0.5rem;
+  color:#fff;
+  border:0;
+  font-size:100%;
+  height:1.25rem;
+  outline: 0;
+  border-radius: 0.3rem;
+  cursor: pointer;
+  margin:0.15rem;
+  transition: all 1s linear;
+}
+
+.btn-2#parody{
+  background-color: red;
+}
+
+.btn-2#character{
+  background-color: blue;
+}
+
+.btn-2#tag{
+  background-color: green;
+}
+
+.btn-2#artist{
+  background-color: fuchsia;
+}
+
+.btn-2#group{
+  background-color: teal;
+}
+
+.btn-2.hover{
+  filter: saturate(20%)
+}
+
+input,input:focus{
+  border:none;
+  outline:0;
+}
+
 html.theme-black,html.theme-black body {
     color: #d9d9d9;
     background-color: #0d0d0d
@@ -231,14 +322,6 @@ html.theme-black #thumbnail-container,html.theme-black .container {
     background-color: #1f1f1f
 }
 
-html.theme-black #thumbnail-container .lazyload,html.theme-black .lazyload {
-    background-color: #262626
-}
-
-html.theme-black #thumbnail-container .lazyload-loading,html.theme-black .lazyload-loading {
-    background-color: #2e2e2e
-}
-
 html.theme-black .gallery:hover .caption {
     box-shadow: 0 10px 20px rgba(0,0,0,.5)
 }
@@ -246,10 +329,4 @@ html.theme-black .gallery:hover .caption {
 html.theme-black .caption {
     background-color: #404040;
     color: #d9d9d9
-}
-
-html.theme-black code {
-    color: #ed2553;
-    border: none;
-    background-color: #292929
 }

nhentai/viewer/main.html

@@ -5,7 +5,8 @@
     <meta charset="utf-8" />
     <meta name="theme-color" content="#1f1f1f" />
     <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes, viewport-fit=cover" />
-    <title>nHentai &raquo; Viewer</title>
+    <title>nHentai Viewer</title>
+    <script type="text/javascript" src="data.js"></script>
         <!-- <link rel="stylesheet" href="./main.css"> -->
 <style>
 {STYLES}
@@ -14,9 +15,27 @@
 
 <body>
     <div id="content">
-
-        <h1>Main Folder({COUNT})</h1>
-
+        <nav class="sidenav">
+			<img src="logo.png">
+			<h1>nHentai Viewer</h1>
+                        <button class="accordion">Language</button>
+            <div class="options" id="language">
+                    <a>English</a>
+                    <a>Japanese</a>
+                    <a>Chinese</a>
+            </div>
+			<button class="accordion">Category</button>
+            <div class="options" id ="category">
+                    <a>Doujinshi</a>
+                    <a>Manga</a>
+            </div>
+			<button class="nav-btn hidden">Filters</button>
+			<div class="search">
+				<input autocomplete="off" type="search" id="tagfilter" name="q" value="" autocapitalize="none" required="">
+				<svg class="btn" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="white" d="M505 442.7L405.3 343c-4.5-4.5-10.6-7-17-7H372c27.6-35.3 44-79.7 44-128C416 93.1 322.9 0 208 0S0 93.1 0 208s93.1 208 208 208c48.3 0 92.7-16.4 128-44v16.3c0 6.4 2.5 12.5 7 17l99.7 99.7c9.4 9.4 24.6 9.4 33.9 0l28.3-28.3c9.4-9.4 9.4-24.6.1-34zM208 336c-70.7 0-128-57.2-128-128 0-70.7 57.2-128 128-128 70.7 0 128 57.2 128 128 0 70.7-57.2 128-128 128z"/></svg>
+			<div id="tags">
+			</div>
+		</nav>
         <div class="container" id="favcontainer">
 
             {PICTURE}
@@ -24,7 +43,9 @@
         </div> <!-- container -->
 
     </div>
-
+<script>
+    {SCRIPTS}
+</script>
 </body>
 
 </html>

nhentai/viewer/main.js

@@ -0,0 +1,177 @@
+    //------------------------------------navbar script------------------------------------
+var menu = document.getElementsByClassName("accordion");
+for (var i = 0; i < menu.length; i++) {
+  menu[i].addEventListener("click", function() {
+    var panel = this.nextElementSibling;
+    if (panel.style.maxHeight) {
+	  this.classList.toggle("active");
+      panel.style.maxHeight = null;
+    } else {
+      panel.style.maxHeight = panel.scrollHeight + "px";
+	  this.classList.toggle("active");
+    }
+  });
+}
+var language = document.getElementById("language").children;
+for (var i = 0; i < language.length; i++){
+	language[i].addEventListener("click", function() {
+		toggler = document.getElementById("language")
+		toggler.style.maxHeight = null;
+		document.getElementsByClassName("accordion")[0].classList.toggle("active");
+		filter_maker(this.innerText, "language");
+});
+}
+var category = document.getElementById("category").children;
+for (var i = 0; i < category.length; i++){
+	category[i].addEventListener("click", function() {
+		document.getElementById("category").style.maxHeight = null;
+		document.getElementsByClassName("accordion")[1].classList.toggle("active");
+		filter_maker(this.innerText, "category");
+});
+}
+//-----------------------------------------------------------------------------------
+//----------------------------------Tags Script--------------------------------------
+tag_maker(tags);
+
+var tag = document.getElementsByClassName("btn-2");
+for (var i = 0; i < tag.length; i++){
+	tag[i].addEventListener("click", function() {
+	filter_maker(this.innerText, this.id);
+});
+}
+
+var input = document.getElementById("tagfilter");
+input.addEventListener("input", function() {
+	var tags = document.querySelectorAll(".btn-2");
+	if (this.value.length > 0) {
+        for (var i = 0; i < tags.length; i++) {
+            var tag = tags[i];
+            var nome = tag.innerText;
+            var exp = new RegExp(this.value, "i");;
+            if (exp.test(nome)) {
+                tag.classList.remove("hidden");
+		    }
+			else {
+				tag.classList.add("hidden");
+            }
+        }
+    } else {
+        for (var i = 0; i < tags.length; i++) {
+            var tag = tags[i];
+				tag.classList.add('hidden');
+        }
+    }
+});
+input.addEventListener('keypress', function (e) {
+	enter_search(e, this.value);
+});
+//-----------------------------------------------------------------------------------
+//------------------------------------Functions--------------------------------------
+function enter_search(e, input){
+	var count = 0;
+	var key = e.which || e.keyCode;
+	if (key === 13 && input.length > 0) {
+	  var all_tags = document.getElementById("tags").children;
+	  for(i = 0; i < all_tags.length; i++){
+		if (!all_tags[i].classList.contains("hidden")){
+			count++;
+			var tag_name = all_tags[i].innerText;
+			var tag_id   = all_tags[i].id;
+			if (count>1){break}
+		}
+	  }
+	  if (count == 1){
+		filter_maker(tag_name, tag_id);
+	  }
+	}
+}
+function filter_maker(text, class_value){
+    var check = filter_checker(text);
+	var nav_btn = document.getElementsByClassName("nav-btn")[0];
+	if (nav_btn.classList.contains("hidden")){
+	  nav_btn.classList.toggle("hidden");
+	}
+	if (check == true){
+		var node = document.createElement("a");
+		var textnode = document.createTextNode(text);
+		node.appendChild(textnode);
+		node.classList.add(class_value);
+		nav_btn.appendChild(node);
+		filter_searcher();
+	}
+}
+
+function filter_searcher(){
+	var verifier = null;
+	var tags_filter = [];
+	var doujinshi_id = [];
+	var filter_tag = document.getElementsByClassName("nav-btn")[0].children;
+	filter_tag[filter_tag.length-1].addEventListener("click", function() {
+		this.remove();
+		try{
+			filter_searcher();
+		}
+		catch{
+			var gallery = document.getElementsByClassName("gallery-favorite");
+			for (var i = 0; i < gallery.length; i++){
+				gallery[i].classList.remove("hidden");
+			}
+		}
+	});
+	for (var i=0; i < filter_tag.length; i++){
+		var fclass = filter_tag[i].className;
+		var fname = filter_tag[i].innerText.toLowerCase();
+		tags_filter.push([fclass, fname])
+	}
+	for (var i=0; i < data.length; i++){
+		for (var j=0; j < tags_filter.length; j++){
+			try{
+				if(data[i][tags_filter[j][0]].includes(tags_filter[j][1])){
+					verifier = true;
+				}
+				else{
+					verifier = false;
+					break
+				}
+			}
+			catch{
+				verifier = false;
+					break
+			}
+		}
+		if (verifier){doujinshi_id.push(data[i].Folder);}
+	}
+	var gallery = document.getElementsByClassName("gallery-favorite");
+	for (var i = 0; i < gallery.length; i++){
+		gtext = gallery	[i].children[0].children[0].children[1].innerText;
+		if(doujinshi_id.includes(gtext)){
+			gallery[i].classList.remove("hidden");
+		}
+		else{
+		gallery[i].classList.add("hidden");
+		}
+	}
+}
+
+function filter_checker(text){
+    var filter_tags = document.getElementsByClassName("nav-btn")[0].children;
+	if (filter_tags == null){return true;}
+	for (var i=0; i < filter_tags.length; i++){
+		if (filter_tags[i].innerText == text){return false;}
+	}
+	return true;
+}
+
+function tag_maker(data){
+	for (i in data){
+		for (j in data[i]){
+			var node = document.createElement("button");
+			var textnode = document.createTextNode(data[i][j]);
+			node.appendChild(textnode);
+			node.classList.add("btn-2");
+			node.setAttribute('id', i);
+			node.classList.add("hidden");
+			document.getElementById("tags").appendChild(node);
+		}
+	}
+}

nhentai/viewer/scripts.js

@@ -1,81 +1,85 @@
-const pages = Array.from(document.querySelectorAll('img.image-item'));
-let currentPage = 0;
-
-function changePage(pageNum) {
-    const previous = pages[currentPage];
-    const current = pages[pageNum];
-
-    if (current == null) {
-        return;
-    }
-    
-    previous.classList.remove('current');
-    current.classList.add('current');
-
-    currentPage = pageNum;
-
-    const display = document.getElementById('dest');
-    display.style.backgroundImage = `url("${current.src}")`;
-
-    document.getElementById('page-num')
-        .innerText = [
-                (pageNum + 1).toLocaleString(),
-                pages.length.toLocaleString()
-            ].join('\u200a/\u200a');
-}
-
-changePage(0);
-
-document.getElementById('list').onclick = event => {
-    if (pages.includes(event.target)) {
-        changePage(pages.indexOf(event.target));
-    }
-};
-
-document.getElementById('image-container').onclick = event => {
-    const width = document.getElementById('image-container').clientWidth;
-    const clickPos = event.clientX / width;
-
-    if (clickPos < 0.5) {
-        changePage(currentPage - 1);
-    } else {
-        changePage(currentPage + 1);
-    }
-};
-
-document.onkeypress = event => {
-    switch (event.key.toLowerCase()) {
-        // Previous Image
-        case 'w':
-        case 'a':
-            changePage(currentPage - 1);
-            break;
-        // Return to previous page
-        case 'q':
-            window.history.go(-1);
-            break;
-        // Next Image
-        case ' ':
-        case 's':
-        case 'd':
-            changePage(currentPage + 1);
-            break;
-    }// remove arrow cause it won't work
-};
-
-document.onkeydown = event =>{
-    switch (event.keyCode) {
-        case 37: //left
-            changePage(currentPage - 1);
-            break;
-        case 38: //up
-            changePage(currentPage - 1);
-            break;
-        case 39: //right
-            changePage(currentPage + 1);
-            break;
-        case 40: //down
-            changePage(currentPage + 1);
-            break;
-    }
+const pages = Array.from(document.querySelectorAll('img.image-item'));
+let currentPage = 0;
+
+function changePage(pageNum) {
+    const previous = pages[currentPage];
+    const current = pages[pageNum];
+
+    if (current == null) {
+        return;
+    }
+    
+    previous.classList.remove('current');
+    current.classList.add('current');
+
+    currentPage = pageNum;
+
+    const display = document.getElementById('dest');
+    display.style.backgroundImage = `url("${current.src}")`;
+
+    scroll(0,0)
+
+    document.getElementById('page-num')
+        .innerText = [
+                (pageNum + 1).toLocaleString(),
+                pages.length.toLocaleString()
+            ].join('\u200a/\u200a');
+}
+
+changePage(0);
+
+document.getElementById('list').onclick = event => {
+    if (pages.includes(event.target)) {
+        changePage(pages.indexOf(event.target));
+    }
+};
+
+document.getElementById('image-container').onclick = event => {
+    const width = document.getElementById('image-container').clientWidth;
+    const clickPos = event.clientX / width;
+
+    if (clickPos < 0.5) {
+        changePage(currentPage - 1);
+    } else {
+        changePage(currentPage + 1);
+    }
+};
+
+document.onkeypress = event => {
+    switch (event.key.toLowerCase()) {
+        // Previous Image
+        case 'w':
+	   scrollBy(0, -40);
+	   break;
+        case 'a':
+            changePage(currentPage - 1);
+            break;
+        // Return to previous page
+        case 'q':
+            window.history.go(-1);
+            break;
+        // Next Image
+        case ' ':
+        case 's':
+	    scrollBy(0, 40);
+            break;
+        case 'd':
+            changePage(currentPage + 1);
+            break;
+    }// remove arrow cause it won't work
+};
+
+document.onkeydown = event =>{
+    switch (event.keyCode) {
+        case 37: //left
+            changePage(currentPage - 1);
+            break;
+        case 38: //up
+            break;
+        case 39: //right
+            changePage(currentPage + 1);
+            break;
+        case 40: //down
+            break;
+    }
 };

nhentai/viewer/styles.css

@@ -1,69 +1,70 @@
-*, *::after, *::before {
-    box-sizing: border-box;
-}
-
-img {
-    vertical-align: middle;
-}
-
-html, body {
-    display: flex;
-    background-color: #e8e6e6;
-    height: 100%;
-    width: 100%;
-    padding: 0;
-    margin: 0;
-    font-family: sans-serif;
-}
-
-#list {
-    height: 100%;
-    overflow: auto;
-    width: 260px;
-    text-align: center;
-}
-
-#list img {
-    width: 200px;
-    padding: 10px;
-    border-radius: 10px;
-    margin: 15px 0;
-    cursor: pointer;
-}
-
-#list img.current {
-    background: #0003;
-}
-
-#image-container {
-    flex: auto;
-    height: 100vh;
-    background: #222;
-    color: #fff;
-    text-align: center;
-    cursor: pointer;
-    -webkit-user-select: none;
-    user-select: none;
-    position: relative;
-}
-
-#image-container #dest {
-    height: 100%;
-    width: 100%;
-    background-size: contain;
-    background-repeat: no-repeat;
-    background-position: center;
-}
-
-#image-container #page-num {
-    position: absolute;
-    font-size: 18pt;
-    left: 10px;
-    bottom: 5px;
-    font-weight: bold;
-    opacity: 0.75;
-    text-shadow: /* Duplicate the same shadow to make it very strong */
-        0 0 2px #222,
-        0 0 2px #222,
-        0 0 2px #222;
+  
+*, *::after, *::before {
+    box-sizing: border-box;
+}
+
+img {
+    vertical-align: middle;
+}
+
+html, body {
+    display: flex;
+    background-color: #e8e6e6;
+    height: 100%;
+    width: 100%;
+    padding: 0;
+    margin: 0;
+    font-family: sans-serif;
+}
+
+#list {
+    height: 2000px;
+    overflow: scroll;
+    width: 260px;
+    text-align: center;
+}
+
+#list img {
+    width: 200px;
+    padding: 10px;
+    border-radius: 10px;
+    margin: 15px 0;
+    cursor: pointer;
+}
+
+#list img.current {
+    background: #0003;
+}
+
+#image-container {
+    flex: auto;
+    height: 2000px;
+    background: #222;
+    color: #fff;
+    text-align: center;
+    cursor: pointer;
+    -webkit-user-select: none;
+    user-select: none;
+    position: relative;
+}
+
+#image-container #dest {
+    height: 2000px;
+    width: 100%;
+    background-size: contain;
+    background-repeat: no-repeat;
+    background-position: top;
+}
+
+#image-container #page-num {
+    position: static;
+    font-size: 14pt;
+    left: 10px;
+    bottom: 5px;
+    font-weight: bold;
+    opacity: 0.75;
+    text-shadow: /* Duplicate the same shadow to make it very strong */
+        0 0 2px #222,
+        0 0 2px #222,
+        0 0 2px #222;
 }