python 爬虫 user-agent 生成
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2023-11-06 23:54:46
有些网站做了反爬技术,如:比较初级的通过判断请求头部中的user-agent字段来检测是否通过浏览器访问的。 在爬这类网站时需要模拟user-agent user-agent.txt 百度网盘 链接:https://pan.baidu.com/s/1ramkIyjVSI2_GXbxypj1Dg 提取 ......
有些网站做了反爬技术,如:比较初级的通过判断请求头部中的user-agent字段来检测是否通过浏览器访问的。
在爬这类网站时需要模拟user-agent
import random import re from typing import dict, list class useragent: ''' 代理 ''' __filepath = 'user-agent.txt' ''' 对象实例 ''' __instance = none ''' 代理浏览器 ''' __dict: dict[str, list] = {} ''' 代理浏览器 ''' __list: list[str] = [] ''' 初始化 ''' def __init__(self): reg = re.compile(r'firefox|chrome|msie|opera', re.i) with open(self.__filepath, 'r', encoding='utf_8_sig') as f: for r in f: result = reg.search(r) and reg.search(r).group().lower() if result and (not result in self.__dict): self.__dict[result] = [] result and self.__dict[result].append(r.strip()) self.__list.append(r.strip()) ''' 单例 - 构造函数 ''' def __new__(cls): if not cls.__instance: cls.__instance = super(useragent, cls).__new__(cls) return cls.__instance ''' 谷歌 ''' @property def chrome(self) -> str: return random.choice(self.__dict['chrome']) ''' 火狐 ''' @property def firefox(self) -> str: return random.choice(self.__dict['firefox']) ''' ie ''' @property def ie(self) -> str: return random.choice(self.__dict['msie']) ''' opera 浏览器 ''' @property def opera(self) -> str: return random.choice(self.__dict['opera']) ''' 随机 ''' def random(self) -> str: return random.choice(self.__list) ''' 迭代 ''' def __iter__(self): self.__iter = iter(self.__list) return self ''' 下一个 ''' def __next__(self): return next(self.__iter) ''' 索引 ''' def __getitem__(self, index) -> str or list(str): return self.__list[index] useragent = useragent() print(useragent.random()) ''' for n in useragent: print(n) '''
user-agent.txt
mozilla/5.0 (windows nt 6.1) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2228.0 safari/537.36 mozilla/5.0 (macintosh; intel mac os x 10_10_1) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2227.1 safari/537.36 mozilla/5.0 (x11; linux x86_64) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2227.0 safari/537.36 mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2227.0 safari/537.36 mozilla/5.0 (windows nt 6.3; wow64) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2226.0 safari/537.36 mozilla/5.0 (windows nt 6.4; wow64) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2225.0 safari/537.36 mozilla/5.0 (windows nt 6.3; wow64) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2225.0 safari/537.36 mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/41.0.2224.3 safari/537.36 mozilla/5.0 (windows nt 10.0) applewebkit/537.36 (khtml, like gecko) chrome/40.0.2214.93 safari/537.36 mozilla/5.0 (macintosh; intel mac os x 10_10_1) applewebkit/537.36 (khtml, like gecko) chrome/37.0.2062.124 safari/537.36 mozilla/5.0 (windows nt 6.3; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/37.0.2049.0 safari/537.36 mozilla/5.0 (windows nt 4.0; wow64) applewebkit/537.36 (khtml, like gecko) chrome/37.0.2049.0 safari/537.36 mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, like gecko) chrome/36.0.1985.67 safari/537.36 mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/36.0.1985.67 safari/537.36 mozilla/5.0 (x11; openbsd i386) applewebkit/537.36 (khtml, like gecko) chrome/36.0.1985.125 safari/537.36 mozilla/5.0 (macintosh; intel mac os x 10_9_2) applewebkit/537.36 (khtml, like gecko) chrome/36.0.1944.0 safari/537.36 mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/35.0.3319.102 safari/537.36 mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/35.0.2309.372 safari/537.36 mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/35.0.2117.157 safari/537.36 mozilla/5.0 (macintosh; intel mac os x 10_9_3) applewebkit/537.36 (khtml, like gecko) chrome/35.0.1916.47 safari/537.36 mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/34.0.1866.237 safari/537.36 mozilla/5.0 (x11; linux x86_64) applewebkit/537.36 (khtml, like gecko) chrome/34.0.1847.137 safari/4e423f mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/34.0.1847.116 safari/537.36 mozilla/5.0 (ipad; u; cpu os 3_2 like mac os x; en-us) applewebkit/531.21.10 (khtml, like gecko) version/4.0.4 mobile/7b334b safari/531.21.10 mozilla/5.0 (x11; linux x86_64) applewebkit/537.36 (khtml, like gecko) chrome/33.0.1750.517 safari/537.36 mozilla/5.0 (windows nt 6.2; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/32.0.1667.0 safari/537.36 mozilla/5.0 (macintosh; intel mac os x 10_9_0) applewebkit/537.36 (khtml, like gecko) chrome/32.0.1664.3 safari/537.36 mozilla/5.0 (macintosh; intel mac os x 10_8_0) applewebkit/537.36 (khtml, like gecko) chrome/32.0.1664.3 safari/537.36 mozilla/5.0 (windows nt 5.1) applewebkit/537.36 (khtml, like gecko) chrome/31.0.1650.16 safari/537.36 mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, like gecko) chrome/31.0.1623.0 safari/537.36
...... mozilla/5.0 (macintosh; u; intel mac os x 10_5_8; zh-cn) applewebkit/533.18.1 (khtml, like gecko) version/5.0.2 safari/533.18.5
百度网盘
链接:https://pan.baidu.com/s/1ramkiyjvsi2_gxbxypj1dg
提取码:hak8