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| import os import requests from bs4 import BeautifulSoup import sys import time import re import signal
novel_detail_url = ''
novel_chapter_url = [''] novel_chapter_url = [novel_detail_url]
rule_novel_name = ''
rule_novel_author = ''
rule_novel_intro = ''
rule_novel_chapter_div = ''
rule_novel_chapter_div_only = ''
rule_novel_chapter_name = rule_novel_chapter_div_only
rule_novel_chapter_url = rule_novel_chapter_div_only
rule_novel_chapter_content_div = ''
rule_novel_chapter_content_p = 'p'
indent_string = ' '
rule_novel_chapter_content_purify_text = [] rule_novel_chapter_content_purify_re = []
download_path = './'
novel_file_encoding = 'utf-8'
headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3' }
timeout = 5
max_retries = 5
request_interval_ms = 0
last_request_time = None
debug = False
def get_unique_file_path(file_path): base_path, ext = os.path.splitext(file_path) counter = 1 while os.path.exists(file_path): file_path = f"{base_path}({counter}){ext}" counter += 1 return file_path
def console_log(text, level='log',end='\n'): localtime = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()) if level == 'log': print(f"{localtime} [LOG]: {text}",end=end) elif level == 'info': print(f"{localtime} [INFO]: {text}",end=end) elif level == 'warn': print(f"{localtime} [WARN]: {text}",end=end) elif level == 'error': print(f"{localtime} [ERROR]: {text}",end=end) elif level == 'debug': print(f"{localtime} [DEBUG]: {text}",end=end) else: print(f"{localtime} [UNKNOWN LEVEL]: {text}",end=end)
def get_url(url): global last_request_time if last_request_time is not None: current_time = int(time.time() * 1000) if current_time - last_request_time < request_interval_ms: time.sleep((current_time - last_request_time) / 1000) retries = 0 while retries < max_retries: try: response = requests.get(url, headers=headers, timeout=timeout) return response except (requests.exceptions.Timeout, requests.exceptions.RequestException) as e: console_log(f"请求失败,正在重试 ({retries + 1}/{max_retries})...", level='warn') if debug: console_log(f"错误信息: {e}", level='debug') time.sleep(1) retries += 1 console_log("请求失败,已达到最大重试次数。", level='error') return None
def parse_html(html_content): soup = BeautifulSoup(html_content, 'lxml') return soup
def css_select(soup, rule): try: return soup.select(rule) except AttributeError: console_log(f"找不到符合规则 {rule} 的内容", level='error') return []
def exit_program(status_code=0): console_log("程序退出", level='info') sys.exit(status_code)
def safe_filename(filename): return re.sub(r'[\\/:*?"<>|]', '', filename)
def write_file_a(text, path, encoding='utf-8'): try: with open(path, 'a', encoding=encoding) as file_a: file_a.write(text) file_a.close() except Exception as e: console_log(f"写入文件失败: {e}", level='error') exit_program(1)
def purify_content(content): if content == '' or content is None: return '' if rule_novel_chapter_content_purify_text == []: for rule in rule_novel_chapter_content_purify_text: content = content.replace(rule, '') if rule_novel_chapter_content_purify_re == []: for rule in rule_novel_chapter_content_purify_re: content = re.sub(rule, '', content) return content
def get_base_url(url): url = re.sub(r'/[^/]*$', '/', url) return url
def get_root_url(url): match = re.match(r'(https?://[^/]+)', url) if match: return match.group(1) return None
def format_time(seconds): """ 将秒数转换为更人性化的时间格式(时:分:秒) """ hours = int(seconds // 3600) seconds %= 3600 minutes = int(seconds // 60) seconds = int(seconds % 60) if hours > 0: return f"{hours} 小时 {minutes} 分钟 {seconds} 秒" elif minutes > 0: return f"{minutes} 分钟 {seconds} 秒" else: return f"{seconds} 秒"
def signal_handler(sig, frame): console_log("\n程序被中断,正在退出...", level='info') exit_program(1)
def main(): start_time = time.time() response_novel_detail = get_url(novel_detail_url) if response_novel_detail is None: console_log("获取小说详情页面失败", level='error') exit_program(1) soup = parse_html(response_novel_detail.content)
if rule_novel_name == '' or rule_novel_name is None: console_log("小说名称的规则表达式为空,使用“小说”作为小说名称", level='warn') novel_name = "小说" else: novel_name = css_select(soup, rule_novel_name)[0].text.strip() console_log(f"小说名称: {novel_name}", level='info')
if rule_novel_author == '' or rule_novel_author is None: console_log("小说作者的规则表达式为空,使用“佚名”作为小说作者", level='warn') novel_author = "佚名" else: novel_author = css_select(soup, rule_novel_author)[0].text.strip() console_log(f"小说作者: {novel_author}", level='info')
if rule_novel_intro == '' or rule_novel_intro is None: console_log("小说简介的规则表达式为空,使用“暂无简介”作为小说简介", level='warn') novel_intro = "暂无简介" else: novel_intro = css_select(soup, rule_novel_intro)[0].text.strip() console_log(f"小说简介: {novel_intro}", level='info')
chapter_list = [] if not (novel_chapter_url and rule_novel_chapter_div and rule_novel_chapter_div_only and rule_novel_chapter_name and rule_novel_chapter_url): console_log("小说章节列表页面的 URL 列表、小说章节区域、小说单个章节的区域、小说章节名称、小说章节 URL的规则表达式不可为空", level='error') exit_program(1) else: console_log("开始获取章节列表", level='info') for chapter_url in novel_chapter_url: response_chapter_list = get_url(chapter_url) response_chapter_list = parse_html(response_chapter_list.content) response_chapter_list_base_url = get_base_url(chapter_url) response_chapter_list_root_url = get_root_url(chapter_url) chapter_divs_list = css_select(response_chapter_list, rule_novel_chapter_div) if len(chapter_divs_list) == 0: console_log("找不到符合规则的章节区域", level='error') console_log("请检查规则表达式是否正确", level='info') if debug: console_log(f"章节区域规则: {rule_novel_chapter_div}", level='debug') console_log(f"chapter_divs_list: {chapter_divs_list}", level='debug') console_log(f"页面内容: {response_chapter_list.text}", level='debug') exit_program(1) elif len(chapter_divs_list) > 1: console_log("找到多个符合规则的章节区域", level='warn') console_log("将遍历所用章节区域", level='info')
chapter_div_list = [] for chapter_div in chapter_divs_list: chapter_div_list += css_select(chapter_div, rule_novel_chapter_div_only) if len(chapter_div_list) == 0: console_log("找不到符合规则的单个章节区域", level='error') exit_program(1) elif len(chapter_div_list) == 1: console_log("找到一个符合规则的单个章节区域", level='warn') console_log("只有一章?", level='info')
for chapter_div in chapter_div_list: chapter_name = css_select(chapter_div, rule_novel_chapter_name)[0].text.strip()
chapter_url = css_select(chapter_div, rule_novel_chapter_url)[0].get('href') if chapter_url.startswith('/'): chapter_url = response_chapter_list_root_url + chapter_url elif chapter_url.startswith("./"): chapter_url = response_chapter_list_base_url + chapter_url[2:] elif chapter_url.startswith("."): chapter_url = response_chapter_list_base_url + chapter_url[1:] else: chapter_url = chapter_url if chapter_url == '' or chapter_url is None: console_log("章节URL为空,跳过该章节", level='warn') continue chapter_list.append((chapter_name, chapter_url))
chapter_count = len(chapter_list)
console_log(f"章节列表获取完成,共 {chapter_count} 章", level='info')
if chapter_count == 0: console_log("章节列表为空,无法下载小说", level='error') exit_program(1)
chapter_show_count = 8 chapter_show_status = True console_log("章节列表:", level='info') for chapter_name, chapter_url in chapter_list: if chapter_show_status: if chapter_show_count > 0: chapter_show_count -= 1 console_log(f"章节名称: {chapter_name}, 章节链接: {chapter_url}", level='info') else: console_log("......", level='info') chapter_show_status = False else: pass
console_log("小说信息获取完成,即将开始下载小说", level='info')
user_confirm = input("是否开始下载?(Y/N)") if user_confirm.lower() not in ['y', 'yes', '']: print("用户取消下载") exit(0) else: print("开始下载")
novel_file = f"{novel_name} - {novel_author}.txt" novel_file = safe_filename(novel_file) novel_file_path = download_path + novel_file if os.path.exists(novel_file_path): console_log(f"文件 {novel_file_path} 已存在", level='warn') user_confirm = input(f"文件 {novel_file_path} 已存在,是否覆盖下载?(Y/N)") if user_confirm.lower() in ['y', 'yes', '']: console_log("用户选择覆盖下载", level='info') else: user_confirm = input("是否跳过该文件名,使用“小说名(序号).txt”下载?(Y/N)") if user_confirm.lower() in ['y', 'yes', '']: console_log("用户选择跳过下载", level='info') novel_file_path = get_unique_file_path(novel_file_path) else: console_log("那就取消下载吧", level='info') exit_program(0) console_log(f"小说保存文件路径: {novel_file_path}", level='info')
try: with open(novel_file_path, 'w', encoding=novel_file_encoding) as novel_file_x: novel_file_x.write(f"书名:{novel_name}\n") novel_file_x.write(f"来源:{novel_detail_url}\n") novel_file_x.write(f"作者:{novel_author}\n") novel_file_x.write(f"简介:\n{indent_string}{novel_intro}\n\n") except Exception as e: console_log(f"写入文件失败: {e}", level='error') exit_program(1) for i, (chapter_name, chapter_url) in enumerate(chapter_list): chapter_content = '' console_log(f"[{i}/{chapter_count}]下载章节中: {chapter_name}", level='info',end='\r') chapter_response = get_url(chapter_url) if chapter_response is None: console_log("获取章节内容失败", level='error') user_confirm = input("是否跳过该章节?(Y)或者取消下载(N)") if user_confirm.lower() not in ['y', 'yes', '']: console_log("用户选择跳过该章节", level='info') continue else: console_log("那就取消下载吧", level='info') exit_program(1) chapter_soup = parse_html(chapter_response.content) chapter_content_div = css_select(chapter_soup, rule_novel_chapter_content_div) if len(chapter_content_div) == 0: console_log("找不到符合规则的章节内容区域,将跳过该章节", level='error') continue elif len(chapter_content_div) > 1: console_log("找到多个符合规则的章节内容区域", level='warn') console_log("将遍历爬取", level='info') elif len(chapter_content_div) == 1: pass else: console_log("未知错误", level='error') exit_program(1) for chapter_content_div_only in chapter_content_div: chapter_content_p_list = css_select(chapter_content_div_only, rule_novel_chapter_content_p) if len(chapter_content_p_list) == 0: console_log("找不到符合规则的章节内容段落", level='warn') continue else: for chapter_content_p in css_select(chapter_content_div_only, rule_novel_chapter_content_p): chapter_content_p = chapter_content_p.text.strip() if chapter_content_p == '': console_log("章节内容为空", level='warn') else: chapter_content += f"{indent_string}{chapter_content_p}\n"
chapter_content = purify_content(chapter_content)
write_file_a(f"{chapter_name}\n\n{chapter_content}\n\n", novel_file_path, encoding=novel_file_encoding) console_log(f"[{i}/{chapter_count}]下载章节完成: {chapter_name}", level='info') end_time = time.time() download_time = end_time - start_time console_log(f"下载完成,用时 {download_time} 秒", level='info')
if __name__ == '__main__': signal.signal(signal.SIGINT, signal_handler) main()
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