利用python怎么模拟一个B站登录功能？很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。
需要将模拟的浏览器，添加到环境变量中哦。代码中用的是chrome
from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By
from selenium.webdriver.common.action_chains import ActionChains
from selenium.common.exceptions import TimeoutException
from PIL import Image
from io import BytesIO
from time import sleep
import random
"""
info:
author:CriseLYJ
github:https://github.com/CriseLYJ/
update_time:2019-3-7
"""
class BiliBili():
"""
登陆B站, 处理验证码
电脑的缩放比例需要为100%, 否则验证码图片的获取会出现问题
"""
def __init__(self, username, password):
"""
初始化
"""
options = webdriver.ChromeOptions()
# 设置为开发者模式，避免被识别
options.add_experimental_option('excludeSwitches',
['enable-automation'])
self.browser = webdriver.Chrome(options=options)
self.url = 'https://passport.bilibili.com/login'
self.browser.get(self.url)
self.wait = WebDriverWait(self.browser, 5, 0.2)
self.username = username
self.password = password
def get_button(self):
"""
获取滑动块, 并且返回
:return: button
"""
button = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'gt_slider_knob')))
return button
def get_screenshot(self, button):
"""
获取网页两次截图:
1. 鼠标悬停于button的截图
2. 鼠标点击button后的截图
:param button: 滑动块
:return: 两次截图的结果
"""
ActionChains(self.browser).move_to_element(button).perform()
screenshot1 = self.browser.get_screenshot_as_png()
screenshot1 = Image.open(BytesIO(screenshot1))
ActionChains(self.browser).click_and_hold(button).perform()
screenshot2 = self.browser.get_screenshot_as_png()
screenshot2 = Image.open(BytesIO(screenshot2))
return (screenshot1, screenshot2)
def get_position(self, button):
"""
获取验证码图片的位置
:return: 位置的四个点参数
"""
ActionChains(self.browser).move_to_element(button).perform()
img = self.wait.until(EC.presence_of_element_located((By.CLASS_NAME, 'gt_box')))
sleep(2)
location = img.location
size = img.size
print(location, size)
top, bottom, left, right = location['y'], location['y'] + size['height'], location['x'], \
location['x'] + size['width']
return top, bottom, left, right
def get_geetest_image(self, button, name1='captcha1.png', name2='captcha2.png'):
"""
获取两次验证码的截图:
1. 鼠标悬停于button的截图
2. 鼠标点击button后的截图
:param button: 滑动块
:param name1: 原始验证码保存的名字
:param name2: 缺块验证码保存的名字
:return: 两次验证码截图的结果
"""
top, bottom, left, right = self.get_position(button)
print('验证码位置', top, bottom, left, right)
screenshot = self.get_screenshot(button)
captcha1 = screenshot[0].crop((left, top, right, bottom))
captcha1.save(name1)
captcha2 = screenshot[1].crop((left, top, right, bottom))
captcha2.save(name2)
return (captcha1, captcha2)
def login(self):
"""
打开浏览器,并且输入账号密码
:return: None
"""
self.browser.get(self.url)
username = self.wait.until(EC.element_to_be_clickable((By.ID, 'login-username')))
password = self.wait.until(EC.element_to_be_clickable((By.ID, 'login-passwd')))
sleep(1)
username.send_keys(self.username)
sleep(1)
password.send_keys(self.password)
def is_pixel_equal(self, img1, img2, x, y):
"""
判断两个像素是否相同
:param img1: 原始验证码
:param img2: 缺块验证码
:param x: 像素点的x坐标
:param y: 像素点的y坐标
:return: 像素是否相同
"""
pixel1 = img1.load()[x-1, y]
pixel2 = img2.load()[x-1, y]
threshold = 100
if abs(pixel1[0] - pixel2[0]) < threshold and abs(pixel1[1] - pixel2[1]) < threshold and abs(
pixel1[2] - pixel2[2]) < threshold:
return True
else:
return False
def get_gap(self, img1, img2):
"""
获取缺口偏移量
:param img1: 原始验证码
:param img2: 缺块验证码
:return: 第二个缺块的左侧的x坐标
"""
left = 60 # 大致忽略掉第一个缺块
for i in range(left, img1.size[0]):
for j in range(img1.size[1]):
if not self.is_pixel_equal(img1, img2, i, j):
left = i
return left
return left
def get_track(self, distance):
"""
获取滑块移动轨迹的列表
:param distance: 第二个缺块的左侧的x坐标
:return: 滑块移动轨迹列表
"""
track = []
current = 0
mid = distance * 2 / 3
t = 0.2
v = 0
distance += 10 # 使滑块划过目标地点, 然后回退
while current < distance:
if current < mid:
a = random.randint(1, 3)
else:
a = -random.randint(3, 5)
v0 = v
v = v0 + a * t
move = v0 * t + 0.5 * a * t * t
current += move
track.append(round(move))
for i in range(2):
track.append(-random.randint(2, 3))
for i in range(2):
track.append(-random.randint(1, 4))
print(track)
return track
def move_button(self, button, track):
"""
将滑块拖动到指定位置
:param button: 滑动块
:param track: 滑块运动轨迹列表
:return: None
"""
ActionChains(self.browser).click_and_hold(button).perform()
for i in track:
ActionChains(self.browser).move_by_offset(xoffset=i, yoffset=0).perform()
sleep(0.0005)
sleep(0.5)
ActionChains(self.browser).release().perform()
def crack(self):
"""
串接整个流程:
1. 输入账号密码
2. 获取滑动块
3. 获取两张验证码图片
4. 获取滑块移动轨迹
5. 将滑块拖动至指定位置
:return:
"""
self.login()
button = self.get_button()
captcha = self.get_geetest_image(button)
left = self.get_gap(captcha[0], captcha[1])
print(left)
track = self.get_track(left)
# 如果尝试登陆失败, 则重新验证, 最多三次
times = 0
while times < 3:
self.move_button(button, track)
try:
success = self.wait.until(EC.text_to_be_present_in_element((By.CLASS_NAME, 'gt_info_type'), '验证通过:'))
print(success)
except TimeoutException as e:
times += 1
print('fail')
else:
print('success')
return None
if __name__ == '__main__':
ACCOUNT = input('请输入您的账号:')
PASSWORD = input('请输入您的密码:')
test = BiliBili(ACCOUNT, PASSWORD) # 输入账号和密码
test.crack()看完上述内容是否对您有帮助呢？如果还想对相关知识有进一步的了解或阅读更多相关文章，请关注亿速云行业资讯频道，感谢您对亿速云的支持。
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