python 爬取百度文庫並下載(免費文章限定)
阿新 • • 發佈:2020-12-04
import requests import re import json import os session = requests.session() def fetch_url(url): return session.get(url).content.decode('gbk') def get_doc_id(url): return re.findall('view/(.*).html',url)[0] def parse_type(content): return re.findall(r"docType.*?\:.*?\'(.*?)\'\,",content)[0] def parse_title(content): return re.findall(r"title.*?\:.*?\'(.*?)\'\,content)[0] def parse_doc(content): result = '' url_list = re.findall('(https.*?0.json.*?)\\\\x22}',content) url_list = [addr.replace("\\\\\\/","/") for addr in url_list] for url in url_list[:-5]: content = fetch_url(url) y = 0 txtlists = re.findall('"c":"(.*?)".*?"y":(.*?),',content) for item in txtlists: if not y == item[1]: y = item[1] n = '\n' else: n = '' result += n result += item[0].encode('utf-8').decode('unicode_escape','ignore') return result def parse_txt(doc_id): content_url = 'https://wenku.baidu.com/api/doc/getdocinfo?callback=cb&doc_id=' + doc_id content = fetch_url(content_url) md5 = re.findall('"md5sum":"(.*?)"',content)[0] pn = re.findall('"totalPageNum":"(.*?)"',content)[0] rsign = re.findall('"rsign":"(.*?)"',content)[0] content_url = 'https://wkretype.bdimg.com/retype/text/' + doc_id + '?rn=' + pn + '&type=txt' + md5 + '&rsign=' + rsign content = json.loads(fetch_url(content_url)) result = '' for item in content: for i in item['parags']: result += i['c'].replace('\\r','\r').replace('\\n','\n') return result def parse_other(doc_id): content_url = "https://wenku.baidu.com/browse/getbcsurl?doc_id=" + doc_id + "&pn=1&rn=99999&type=ppt" content = fetch_url(content_url) url_list = re.findall('{"zoom":"(.*?)","page"',content) url_list = [item.replace("\\",'') for item in url_list] if not os.path.exists(doc_id): os.mkdir(doc_id) for index,url in enumerate(url_list): content = session.get(url).content path = os.path.join(doc_id,str(index) + '.jpg') with open(path,'wb') as f: f.write(content) print("圖片儲存在" + doc_id + "資料夾") def save_file(filename,content): with open(filename,'w',encoding='utf8') as f: f.write(content) print('已儲存為:' + filename) # test_txt_url = 'https://wenku.baidu.com/view/cbb4af8b783e0912a3162a89.html?from=search' # test_ppt_url = 'https://wenku.baidu.com/view/2b7046e3f78a6529657d5376.html?from=search' # test_pdf_url = 'https://wenku.baidu.com/view/dd6e15c1227916888586d795.html?from=search' # test_xls_url = 'https://wenku.baidu.com/view/eb4a5bb7312b3169a551a481.html?from=search' def main(): url = input('請輸入要下載的文庫URL地址') content = fetch_url(url) doc_id = get_doc_id(url) type = parse_type(content) title = parse_title(content) if type == 'doc': result = parse_doc(content) save_file(title + '.txt',result) elif type == 'txt': result = parse_txt(doc_id) save_file(title + '.txt',result) else: parse_other(doc_id) if __name__ == "__main__": main()
爬取結果
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