python爬蟲如何防止被封ip（python爬蟲實戰一鍵檢測前女友是否屏蔽你的空間）
2023-04-25 08:44:00 5
最近發現有人QQ空間對我展開了屏蔽，咱們也不知道怎麼惹到人家了，一氣之下寫了一個小爬蟲看看到底誰把我屏蔽了。寫小本本記下來！！！
準備工作
python環境：python3.7.4第三方庫環境：requestslxmlthreadpoolselenium
利用selenium模擬登陸獲取cookie並保存到本地
def search_cookie: # 先檢測一下是否運行過 if not __import__('os').path.exists('cookie_dict.txt'): get_cookie_json with open('cookie_dict.txt', 'r') as f: cookie=json.load(f) return cookie def get_cookie_json: # 無頭selenium登陸 qq_number = input('請輸入qq號:') password = __import__('getpass').getpass('請輸入qq密碼:') from selenium import webdriver login_url = 'https://i.qq.com/' chrome_options =Options chrome_options.add_argument('--headless') driver = webdriver.Chrome(options=chrome_options) driver.get(login_url) driver.switch_to_frame('login_frame') ]').click time.sleep(1) ]').send_keys(qq_number) ]').send_keys(password) time.sleep(1) ]').click time.sleep(1) cookie_list = driver.get_cookies cookie_dict = {} for cookie in cookie_list: if 'name' in cookie and 'value' in cookie: cookie_dict[cookie['name']] = cookie['value'] with open('cookie_dict.txt', 'w') as f: json.dump(cookie_dict, f) return True
找到查看好友的接口
進入我的空間，點擊 F12 檢查界面，將 Network 清空後點擊好友界面。
首選盲猜好友列表含有friend欄位。直接選擇搜索發現出來一些數據，挨個查找之後發現好友欄位。保存當前獲得的 url 供日後查詢。
破解data裡面的加密參數
看到只有一個 g_tk 加密參數就很激動，就一個加密！去 Sources 裡面搜索 g_tk 取值到底是什麼加密，發現是個函數點進去看後發現是個簡單的小加密。可以寫 python 代碼。
Python代碼如下：
def get_g_tk: # QQ空間的加密算法 p_skey = cookie['p_skey'] h = 5381 for i in p_skey: h = (h << 5) ord(i) g_tk = h & 214748364 return g_tk
在QQ空間好友欄獲取好友列表
拿到加密參數後，接下來我們就只需要進剛才所說的空間好友欄頁面將所有的好友的QQ號抓下來，用urllib.parse.urlencode(data)將參數轉成我們常見的url後面綴了一長串&&&的形式與原始連結拼接，然後就可以帶上cookies發送請求獲取json數據，
def get_friends_uin(g_tk): # 獲得好友的QQ號信息 yurl = 'https://user.qzone.qq.com/proxy/domain/r.qzone.qq.com/cgi-bin/tfriend/friend_ship_manager.cgi?' data = { 'uin': cookie['ptui_loginuin'], 'do': 1, 'g_tk': g_tk } url = yurl urllib.parse.urlencode(data) res=requests.get(url, headers = headers, cookies = cookie) r = res.text.split('(')[1].split(')')[0] friends_list=json.loads(r)['data']['items_list'] friends_uin=[] for f in friends_list: friends_uin.append(f['uin']) return friends_uin
找到屏蔽我的"狠人"
拿到好友的QQ號之後，咱們就能直接訪問好友的空間了，但是好友設置了拒絕訪問，一定要拿小本本記下來！
def get_blacklist(friends): # 查詢被擋好友的QQ號，用小本本記下來! access_denied=[] # 拉黑筆記，小本本記下來！ yurl = 'https://user.qzone.qq.com/' for friend in friends: print("開始檢查:" str(friend)) url = yurl str(friend) res = requests.get(url,headers=headers,cookies=cookie) tip = etree.HTML(res.text).xpath('/html/body/div/div/div[1]/p/text') if len(tip) > 0: #if tip[0][:7] == "主人設置了權限": print(str(friend) "把我拉黑了!") access_denied.append(friend) return access_denied
拉黑這幫重色輕友的人！進入自己心靈想進去的地方，拉黑他們！
發現只有一個 post 請求，那應該就只能是這個了。
看了眼所需要的參數，自己的號，拉黑的號，自己的空間，加上一個無用參數和剛才所獲得加密參數。
越想越氣，寫代碼！
def pull_black: # 拉黑，必須拉黑！ global cookie cookie = search_cookie with open('access_denied.txt', 'r') as f: access_denied = f.readlines for fake_friend in access_denied: fake_friend = fake_friend.split('\n')[0] yurl = "https://user.qzone.qq.com/proxy/domain/w.qzone.qq.com/cgi-bin/right/cgi_black_action_new?" g_tk = get_g_tk url_data = {'g_tk': g_tk} data = { 'uin': cookie['ptui_loginuin'], 'action': '1', 'act_uin': fake_friend, 'fupdate': '1', 'qzreferrer': 'https://user.qzone.qq.com/1223411083' } url = yurl urllib.parse.urlencode(url_data) res=requests.post(url, headers = headers, data=data, cookies = cookie) print(str(fake_friend) "已被您拉黑") print("都拉黑了！解氣！！")
全部代碼
import timeimport jsonimport reimport urllibimport requestsfrom lxml import etreeimport threadpoolheaders = {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36'}def search_cookie: if not __import__('os').path.exists('cookie_dict.txt'): get_cookie_json with open('cookie_dict.txt', 'r') as f: cookie=json.load(f) return cookiedef get_cookie_json: # 無頭selenium登陸 qq_number = input('請輸入qq號:') password = __import__('getpass').getpass('請輸入qq密碼:') from selenium import webdriver from selenium.webdriver.chrome.options import Options login_url = 'https://i.qq.com/' chrome_options =Options chrome_options.add_argument('--headless') driver = webdriver.Chrome(options=chrome_options) driver.get(login_url) driver.switch_to_frame('login_frame') ]').click time.sleep(1) ]').send_keys(qq_number) ]').send_keys(password) time.sleep(1) ]').click time.sleep(1) cookie_list = driver.get_cookies cookie_dict = {} for cookie in cookie_list: if 'name' in cookie and 'value' in cookie: cookie_dict[cookie['name']] = cookie['value'] with open('cookie_dict.txt', 'w') as f: json.dump(cookie_dict, f) return Truedef get_g_tk: # QQ空間的加密算法 p_skey = cookie['p_skey'] h = 5381 for i in p_skey: h = (h << 5) ord(i) g_tk = h & 214748364 return g_tkdef get_friends_uin(g_tk): # 獲得好友的QQ號信息 yurl = 'https://user.qzone.qq.com/proxy/domain/r.qzone.qq.com/cgi-bin/tfriend/friend_ship_manager.cgi?' data = { 'uin': cookie['ptui_loginuin'], 'do': 1, 'g_tk': g_tk } url = yurl urllib.parse.urlencode(data) res=requests.get(url, headers = headers, cookies = cookie) r = res.text.split('(')[1].split(')')[0] friends_list=json.loads(r)['data']['items_list'] friends_uin=[] for f in friends_list: friends_uin.append(f['uin']) return friends_uindef get_blacklist(friends): # 查詢被擋好友的QQ號，用小本本記下來! access_denied=[] # 拉黑筆記，小本本記下來！ yurl = 'https://user.qzone.qq.com/' for friend in friends: print("開始檢查:" str(friend)) url = yurl str(friend) res = requests.get(url,headers=headers,cookies=cookie) tip = etree.HTML(res.text).xpath('/html/body/div/div/div[1]/p/text') if len(tip) > 0: #if tip[0][:7] == "主人設置了權限": print(str(friend) "把我拉黑了!") access_denied.append(friend) return access_denied def pull_black: # 拉黑，必須拉黑！ global cookie cookie = search_cookie with open('access_denied.txt', 'r') as f: access_denied = f.readlines for fake_friend in access_denied: fake_friend = fake_friend.split('\n')[0] yurl = "https://user.qzone.qq.com/proxy/domain/w.qzone.qq.com/cgi-bin/right/cgi_black_action_new?" g_tk = get_g_tk url_data = { 'g_tk': g_tk } data = { 'uin': cookie['ptui_loginuin'], 'action': '1', 'act_uin': fake_friend, 'fupdate': '1', 'qzreferrer': 'https://user.qzone.qq.com/1223411083' } url = yurl urllib.parse.urlencode(url_data) res=requests.post(url, headers = headers, data=data, cookies = cookie) print(str(fake_friend) "已被您拉黑") print("都拉黑了！解氣！！") def recording: # 主函數 global cookie cookie = search_cookie g_tk = get_g_tk friends_uin = get_friends_uin(g_tk) access_denied = get_blacklist(friends_uin) print(f"一共有{len(access_denied)}人把你拉黑了！") with open('access_denied.txt', 'w') as f: for a in access_denied: f.write(str(a) '\n')if __name__ == '__main__': # 運行 recording pull_black
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