Merge pull request #354 from normalizedwater546/master

asyncio: fix downloader being run sequentially + httpx: fix proxy and missing headers

.gitignore

@@ -8,3 +8,4 @@ dist/
 output/
 venv/
 .vscode/
+test-output

README.rst

@@ -161,25 +161,21 @@ Other options:
       NHENTAI                 nhentai mirror url
 
     Options:
-      # Operation options, control the program behaviors
       -h, --help            show this help message and exit
       -D, --download        download doujinshi (for search results)
       -S, --show            just show the doujinshi information
-
-      # Doujinshi options, specify id, keyword, etc.
       --id                  doujinshi ids set, e.g. 167680 167681 167682
       -s KEYWORD, --search=KEYWORD
                             search doujinshi by keyword
       -F, --favorites       list or download your favorites
-
-      # Page options, control the page to fetch / download
+      -a ARTIST, --artist=ARTIST
+                            list doujinshi by artist name
       --page-all            all search results
       --page=PAGE, --page-range=PAGE
                             page number of search results. e.g. 1,2-5,14
-      --sorting=SORTING     sorting of doujinshi (recent / popular /
+      --sorting=SORTING, --sort=SORTING
+                            sorting of doujinshi (recent / popular /
                             popular-[today|week])
-
-      # Download options, the output directory, threads, timeout, delay, etc.
       -o OUTPUT_DIR, --output=OUTPUT_DIR
                             output dir
       -t THREADS, --threads=THREADS
@@ -192,8 +188,6 @@ Other options:
       -f FILE, --file=FILE  read gallery IDs from file.
       --format=NAME_FORMAT  format the saved folder name
       --dry-run             Dry run, skip file download
-
-      # Generate options, for generate html viewer, cbz file, pdf file, etc
       --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
@@ -202,12 +196,10 @@ Other options:
       -P, --pdf             generate PDF file
       --rm-origin-dir       remove downloaded doujinshi dir when generated CBZ or
                             PDF file
-      --move-to-folder      remove files in doujinshi dir then move new file to folder 
-                            when generated CBZ or PDF file  
+      --move-to-folder      remove files in doujinshi dir then move new file to
+                            folder when generated CBZ or PDF file
       --meta                generate a metadata file in doujinshi format
-      --regenerate-cbz      regenerate the cbz file if exists
-
-      # nhentai options, set cookie, user-agent, language, remove caches, histories, etc
+      --regenerate          regenerate the cbz or pdf file if exists
       --cookie=COOKIE       set cookie of nhentai to bypass Cloudflare captcha
       --useragent=USERAGENT, --user-agent=USERAGENT
                             set useragent to bypass Cloudflare captcha
@@ -231,6 +223,9 @@ For example:
 .. code-block::
 
     i.h.loli.club -> i.nhentai.net
+    i3.h.loli.club -> i3.nhentai.net
+    i5.h.loli.club -> i5.nhentai.net
+    i7.h.loli.club -> i7.nhentai.net
     h.loli.club -> nhentai.net
 
 Set `NHENTAI` env var to your nhentai mirror.

nhentai/__init__.py

@@ -1,3 +1,3 @@
-__version__ = '0.5.8'
+__version__ = '0.5.12'
 __author__ = 'RicterZ'
 __email__ = 'ricterzheng@gmail.com'

nhentai/command.py

@@ -1,4 +1,6 @@
 # coding: utf-8
+import os
+import shutil
 import sys
 import signal
 import platform
@@ -12,7 +14,7 @@ from nhentai.downloader import Downloader
 from nhentai.logger import logger
 from nhentai.constant import BASE_URL
 from nhentai.utils import generate_html, generate_doc, generate_main_html, generate_metadata_file, \
-    paging, check_cookie, signal_handler, DB
+    paging, check_cookie, signal_handler, DB, move_to_folder
 
 
 def main():
@@ -75,7 +77,7 @@ def main():
         doujinshi_ids = list(set(map(int, doujinshi_ids)) - set(data))
 
     if not options.is_show:
-        downloader = Downloader(path=options.output_dir, size=options.threads,
+        downloader = Downloader(path=options.output_dir, threads=options.threads,
                                 timeout=options.timeout, delay=options.delay)
 
         for doujinshi_id in doujinshi_ids:
@@ -92,6 +94,7 @@ def main():
                     doujinshi.download()
                 else:
                     logger.info(f'Skip download doujinshi because a PDF/CBZ file exists of doujinshi {doujinshi.name}')
+                    continue
 
             if options.generate_metadata:
                 generate_metadata_file(options.output_dir, doujinshi)
@@ -104,12 +107,22 @@ def main():
                 generate_html(options.output_dir, doujinshi, template=constant.CONFIG['template'])
 
             if options.is_cbz:
-                generate_doc('cbz', options.output_dir, doujinshi, options.rm_origin_dir, options.move_to_folder,
-                             options.regenerate)
+                generate_doc('cbz', options.output_dir, doujinshi, options.regenerate)
 
             if options.is_pdf:
-                generate_doc('pdf', options.output_dir, doujinshi, options.rm_origin_dir, options.move_to_folder,
-                             options.regenerate)
+                generate_doc('pdf', options.output_dir, doujinshi, options.regenerate)
+
+            if options.move_to_folder:
+                if options.is_cbz:
+                    move_to_folder(options.output_dir, doujinshi, 'cbz')
+                if options.is_pdf:
+                    move_to_folder(options.output_dir, doujinshi, 'pdf')
+
+            if options.rm_origin_dir:
+                if options.move_to_folder:
+                    logger.critical('You specified both --move-to-folder and --rm-origin-dir options, '
+                                    'you will not get anything :(')
+                shutil.rmtree(os.path.join(options.output_dir, doujinshi.filename), ignore_errors=True)
 
         if options.main_viewer:
             generate_main_html(options.output_dir)

nhentai/constant.py

@@ -38,9 +38,9 @@ FAV_URL = f'{BASE_URL}/favorites/'
 
 IMAGE_URL = f'{urlparse(BASE_URL).scheme}://i.{urlparse(BASE_URL).hostname}/galleries'
 IMAGE_URL_MIRRORS = [
-    f'{urlparse(BASE_URL).scheme}://i3.{urlparse(BASE_URL).hostname}'
-    f'{urlparse(BASE_URL).scheme}://i5.{urlparse(BASE_URL).hostname}'
-    f'{urlparse(BASE_URL).scheme}://i7.{urlparse(BASE_URL).hostname}'
+    f'{urlparse(BASE_URL).scheme}://i3.{urlparse(BASE_URL).hostname}',
+    f'{urlparse(BASE_URL).scheme}://i5.{urlparse(BASE_URL).hostname}',
+    f'{urlparse(BASE_URL).scheme}://i7.{urlparse(BASE_URL).hostname}',
 ]
 
 NHENTAI_HOME = get_nhentai_home()

nhentai/doujinshi.py

@@ -12,6 +12,7 @@ EXT_MAP = {
     'j': 'jpg',
     'p': 'png',
     'g': 'gif',
+    'w': 'webp',
 }
 
 
@@ -75,26 +76,28 @@ class Doujinshi(object):
     def check_if_need_download(self, options):
         base_path = os.path.join(self.downloader.path, self.filename)
 
-        # doujinshi directory is not exist, we need to download definitely
-        if not (os.path.exists(base_path) and os.path.isdir(base_path)):
-            return True
-
-        # regenerate, we need to re-download from nhentai
+        # regenerate, re-download
         if options.regenerate:
             return True
 
+        # pdf or cbz file exists, skip re-download
+        # doujinshi directory may not exist b/c of --rm-origin-dir option set.
+        # user should pass --regenerate option to get back origin dir.
+        ret_pdf = ret_cbz = None
         if options.is_pdf:
-            file_ext = 'pdf'
-        elif options.is_cbz:
-            file_ext = 'cbz'
-        else:
-            # re-download
-            return True
+            ret_pdf = os.path.exists(f'{base_path}.pdf') or os.path.exists(f'{base_path}/{self.filename}.pdf')
 
-        # pdf or cbz file exists, we needn't to re-download it
-        if os.path.exists(f'{base_path}.{file_ext}') or os.path.exists(f'{base_path}/{self.filename}.{file_ext}'):
+        if options.is_cbz:
+            ret_cbz = os.path.exists(f'{base_path}.cbz') or os.path.exists(f'{base_path}/{self.filename}.cbz')
+
+        ret = list(filter(lambda s: s is not None, [ret_cbz, ret_pdf]))
+        if ret and all(ret):
             return False
 
+        # doujinshi directory doesn't exist, re-download
+        if not (os.path.exists(base_path) and os.path.isdir(base_path)):
+            return True
+
         # fallback
         return True
 

nhentai/downloader.py

@@ -1,24 +1,17 @@
 # coding: utf-
 
-import multiprocessing
-import signal
-
-import sys
 import os
-import requests
-import time
+import asyncio
+import httpx
 import urllib3.exceptions
 
 from urllib.parse import urlparse
 from nhentai import constant
 from nhentai.logger import logger
-from nhentai.parser import request
-from nhentai.utils import Singleton
+from nhentai.utils import Singleton, async_request
 
 
 urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
-semaphore = multiprocessing.Semaphore(1)
-
 
 class NHentaiImageNotExistException(Exception):
     pass
@@ -39,64 +32,66 @@ def download_callback(result):
         logger.log(16, f'{data} downloaded successfully')
 
 
-class Downloader(Singleton):
+async def fiber(tasks):
+    for completed_task in asyncio.as_completed(tasks):
+        try:
+            result = await completed_task
+            logger.info(f'{result[1]} download completed')
+        except Exception as e:
+            logger.error(f'An error occurred: {e}')
 
-    def __init__(self, path='', size=5, timeout=30, delay=0):
-        self.size = size
+
+class Downloader(Singleton):
+    def __init__(self, path='', threads=5, timeout=30, delay=0):
+        self.threads = threads
         self.path = str(path)
         self.timeout = timeout
         self.delay = delay
 
-    def download(self, url, folder='', filename='', retried=0, proxy=None):
-        if self.delay:
-            time.sleep(self.delay)
-        logger.info(f'Starting to download {url} ...')
-        filename = filename if filename else os.path.basename(urlparse(url).path)
-        base_filename, extension = os.path.splitext(filename)
+    async def _semaphore_download(self, semaphore, *args, **kwargs):
+        async with semaphore:
+            return await self.download(*args, **kwargs)
+
+    async def download(self, url, folder='', filename='', retried=0, proxy=None):
+        logger.info(f'Starting to download {url} ...')
+
+        if self.delay:
+            await asyncio.sleep(self.delay)
+
+        filename = filename if filename else os.path.basename(urlparse(url).path)
+
+        save_file_path = os.path.join(self.folder, filename)
 
-        save_file_path = os.path.join(folder, base_filename.zfill(3) + extension)
         try:
             if os.path.exists(save_file_path):
                 logger.warning(f'Skipped download: {save_file_path} already exists')
                 return 1, url
 
-            response = None
-            with open(save_file_path, "wb") as f:
-                i = 0
-                while i < 10:
-                    try:
-                        response = request('get', url, stream=True, timeout=self.timeout, proxies=proxy)
+            response = await async_request('GET', url, timeout=self.timeout, proxies=proxy)
+
             if response.status_code != 200:
                 path = urlparse(url).path
                 for mirror in constant.IMAGE_URL_MIRRORS:
-                                print(f'{mirror}{path}')
+                    logger.info(f"Try mirror: {mirror}{path}")
                     mirror_url = f'{mirror}{path}'
-                                response = request('get', mirror_url, stream=True,
-                                                   timeout=self.timeout, proxies=proxy)
+                    response = await async_request('GET', mirror_url, timeout=self.timeout, proxies=proxy)
                     if response.status_code == 200:
                         break
 
-                    except Exception as e:
-                        i += 1
-                        if not i < 10:
-                            logger.critical(str(e))
-                            return 0, None
-                        continue
+            if not await self.save(filename, response):
+                logger.error(f'Can not download image {url}')
+                return 1, None
 
-                    break
-
-                length = response.headers.get('content-length')
-                if length is None:
-                    f.write(response.content)
-                else:
-                    for chunk in response.iter_content(2048):
-                        f.write(chunk)
-
-        except (requests.HTTPError, requests.Timeout) as e:
+        except (httpx.HTTPStatusError, httpx.TimeoutException, httpx.ConnectError) as e:
             if retried < 3:
-                logger.warning(f'Warning: {e}, retrying({retried}) ...')
-                return 0, self.download(url=url, folder=folder, filename=filename,
-                                        retried=retried+1, proxy=proxy)
+                logger.info(f'Download {filename} failed, retrying({retried + 1}) times...')
+                return await self.download(
+                    url=url,
+                    folder=folder,
+                    filename=filename,
+                    retried=retried + 1,
+                    proxy=proxy,
+                )
             else:
                 return 0, None
 
@@ -106,6 +101,8 @@ class Downloader(Singleton):
 
         except Exception as e:
             import traceback
+
+            logger.error(f"Exception type: {type(e)}")
             traceback.print_stack()
             logger.critical(str(e))
             return 0, None
@@ -115,6 +112,22 @@ class Downloader(Singleton):
 
         return 1, url
 
+    async def save(self, save_file_path, response) -> bool:
+        if response is None:
+            logger.error('Error: Response is None')
+            return False
+        save_file_path = os.path.join(self.folder, save_file_path)
+        with open(save_file_path, 'wb') as f:
+            if response is not None:
+                length = response.headers.get('content-length')
+                if length is None:
+                    f.write(response.content)
+                else:
+                    async for chunk in response.aiter_bytes(2048):
+                        f.write(chunk)
+        return True
+
+
     def start_download(self, queue, folder='') -> bool:
         if not isinstance(folder, (str,)):
             folder = str(folder)
@@ -128,34 +141,20 @@ class Downloader(Singleton):
                 os.makedirs(folder)
             except EnvironmentError as e:
                 logger.critical(str(e))
+        self.folder = folder
 
         if os.getenv('DEBUG', None) == 'NODOWNLOAD':
             # Assuming we want to continue with rest of process.
             return True
-        queue = [(self, url, folder, constant.CONFIG['proxy']) for url in queue]
 
-        pool = multiprocessing.Pool(self.size, init_worker)
-        [pool.apply_async(download_wrapper, args=item) for item in queue]
+        semaphore = asyncio.Semaphore(self.threads)
 
-        pool.close()
-        pool.join()
+        coroutines = [
+            self._semaphore_download(semaphore, url, filename=os.path.basename(urlparse(url).path))
+            for url in queue
+        ]
+
+        # Prevent coroutines infection
+        asyncio.run(fiber(coroutines))
 
         return True
-
-
-def download_wrapper(obj, url, folder='', proxy=None):
-    if sys.platform == 'darwin' or semaphore.get_value():
-        return Downloader.download(obj, url=url, folder=folder, proxy=proxy)
-    else:
-        return -3, None
-
-
-def init_worker():
-    signal.signal(signal.SIGINT, subprocess_signal)
-
-
-def subprocess_signal(sig, frame):
-    if semaphore.acquire(timeout=1):
-        logger.warning('Ctrl-C pressed, exiting sub processes ...')
-
-    raise KeyboardInterrupt

nhentai/parser.py

@@ -148,7 +148,7 @@ def doujinshi_parser(id_, counter=0):
     doujinshi['subtitle'] = subtitle.text if subtitle else ''
 
     doujinshi_cover = html.find('div', attrs={'id': 'cover'})
-    img_id = re.search('/galleries/([0-9]+)/cover.(jpg|png|gif)$',
+    img_id = re.search('/galleries/([0-9]+)/cover.(jpg|png|gif|webp)$',
                        doujinshi_cover.a.img.attrs['data-src'])
 
     ext = []

nhentai/utils.py

@@ -6,6 +6,7 @@ import os
 import zipfile
 import shutil
 
+import httpx
 import requests
 import sqlite3
 import urllib.parse
@@ -32,8 +33,28 @@ def request(method, url, **kwargs):
     return getattr(session, method)(url, verify=False, **kwargs)
 
 
+async def async_request(method, url, proxies = None, **kwargs):
+    headers = {
+        'Referer': constant.LOGIN_URL,
+        'User-Agent': constant.CONFIG['useragent'],
+        'Cookie': constant.CONFIG['cookie'],
+    }
+
+    if proxies is None:
+        proxies = constant.CONFIG['proxy']
+
+    if proxies.get('http') == '' and proxies.get('https') == '':
+        proxies = None
+
+    async with httpx.AsyncClient(headers=headers, verify=False, proxies=proxies, **kwargs) as client:
+        response = await client.request(method, url, **kwargs)
+
+    return response
+
+
 def check_cookie():
     response = request('get', constant.BASE_URL)
+
     if response.status_code == 403 and 'Just a moment...' in response.text:
         logger.error('Blocked by Cloudflare captcha, please set your cookie and useragent')
         sys.exit(1)
@@ -72,8 +93,8 @@ def parse_doujinshi_obj(
         doujinshi_obj=None,
         file_type: str = ''
 ) -> Tuple[str, str]:
-    filename = './doujinshi' + file_type
 
+    filename = f'./doujinshi.{file_type}'
     doujinshi_dir = os.path.join(output_dir, doujinshi_obj.filename)
     if doujinshi_obj is not None:
         _filename = f'{doujinshi_obj.filename}.{file_type}'
@@ -104,7 +125,7 @@ def generate_html(output_dir='.', doujinshi_obj=None, template='default'):
     file_list.sort()
 
     for image in file_list:
-        if not os.path.splitext(image)[1] in ('.jpg', '.png'):
+        if not os.path.splitext(image)[1] in ('.jpg', '.png', '.webp'):
             continue
         image_html += f'<img src="{image}" class="image-item"/>\n'
 
@@ -128,6 +149,27 @@ def generate_html(output_dir='.', doujinshi_obj=None, template='default'):
         logger.warning(f'Writing HTML Viewer failed ({e})')
 
 
+def move_to_folder(output_dir='.', doujinshi_obj=None, file_type=None):
+    if not file_type:
+        raise RuntimeError('no file_type specified')
+
+    doujinshi_dir, filename = parse_doujinshi_obj(output_dir, doujinshi_obj, file_type)
+
+    for fn in os.listdir(doujinshi_dir):
+        file_path = os.path.join(doujinshi_dir, fn)
+        _, ext = os.path.splitext(file_path)
+        if ext in ['.pdf', '.cbz']:
+            continue
+
+        if os.path.isfile(file_path):
+            try:
+                os.remove(file_path)
+            except Exception as e:
+                print(f"Error deleting file: {e}")
+
+    shutil.move(filename, os.path.join(doujinshi_dir, os.path.basename(filename)))
+
+
 def generate_main_html(output_dir='./'):
     """
     Generate a main html to show all the contains doujinshi.
@@ -185,8 +227,7 @@ def generate_main_html(output_dir='./'):
         logger.warning(f'Writing Main Viewer failed ({e})')
 
 
-def generate_doc(file_type='', output_dir='.', doujinshi_obj=None, rm_origin_dir=False,
-                 move_to_folder=False, regenerate=False):
+def generate_doc(file_type='', output_dir='.', doujinshi_obj=None, regenerate=False):
 
     doujinshi_dir, filename = parse_doujinshi_obj(output_dir, doujinshi_obj, file_type)
 
@@ -210,7 +251,7 @@ def generate_doc(file_type='', output_dir='.', doujinshi_obj=None, rm_origin_dir
             import img2pdf
 
             """Write images to a PDF file using img2pdf."""
-            file_list = [f for f in os.listdir(doujinshi_dir) if f.lower().endswith(('.png', '.jpg', '.jpeg', '.gif'))]
+            file_list = [f for f in os.listdir(doujinshi_dir) if f.lower().endswith(('.png', '.jpg', '.jpeg', '.gif', '.webp'))]
             file_list.sort()
 
             logger.info(f'Writing PDF file to path: {filename}')
@@ -225,20 +266,6 @@ def generate_doc(file_type='', output_dir='.', doujinshi_obj=None, rm_origin_dir
         except ImportError:
             logger.error("Please install img2pdf package by using pip.")
 
-    if rm_origin_dir:
-        shutil.rmtree(doujinshi_dir, ignore_errors=True)
-
-    if move_to_folder:
-        for filename in os.listdir(doujinshi_dir):
-            file_path = os.path.join(doujinshi_dir, filename)
-            if os.path.isfile(file_path):
-                try:
-                    os.remove(file_path)
-                except Exception as e:
-                    print(f"Error deleting file: {e}")
-
-        shutil.move(filename, doujinshi_dir)
-
 
 def format_filename(s, length=MAX_FIELD_LENGTH, _truncate_only=False):
     """
@@ -303,7 +330,7 @@ def generate_metadata_file(output_dir, doujinshi_obj):
               'TRANSLATOR', 'PUBLISHER', 'DESCRIPTION', 'STATUS', 'CHAPTERS', 'PAGES',
               'TAGS', 'TYPE', 'LANGUAGE', 'RELEASED', 'READING DIRECTION', 'CHARACTERS',
               'SERIES', 'PARODY', 'URL']
-    special_fields = ['PARODY', 'TITLE', 'ORIGINAL TITLE', 'CHARACTERS', 'AUTHOR', 'GROUPS',
+    special_fields = ['PARODY', 'TITLE', 'ORIGINAL TITLE', 'DATE', 'CHARACTERS', 'AUTHOR', 'GROUPS',
                       'LANGUAGE', 'TAGS', 'URL', 'PAGES']
 
     for i in range(len(fields)):

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "nhentai"
-version = "0.5.8"
+version = "0.5.12"
 description = "nhentai doujinshi downloader"
 authors = ["Ricter Z <ricterzheng@gmail.com>"]
 license = "MIT"

requirements.txt

@@ -1,3 +1,4 @@
+httpx
 requests
 soupsieve
 setuptools

setup.cfg

@@ -1,3 +1,3 @@
 [metadata]
-description-file = README.rst
+description_file = README.rst
 

tests/test_download.py

@@ -20,7 +20,7 @@ class TestDownload(unittest.TestCase):
     def test_download(self):
         did = 440546
         info = Doujinshi(**doujinshi_parser(did), name_format='%i')
-        info.downloader = Downloader(path='/tmp', size=5)
+        info.downloader = Downloader(path='/tmp', threads=5)
         info.download()
 
         self.assertTrue(os.path.exists(f'/tmp/{did}/001.jpg'))