Created
September 30, 2017 09:08
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CrackGeetest
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#-*- coding:utf-8 -*- | |
# from Python3WebSpider/CrackGeetest | |
# and did some little changes to fix python2 | |
import time | |
from io import BytesIO | |
from PIL import Image | |
from selenium import webdriver | |
from selenium.webdriver import ActionChains | |
from selenium.webdriver.common.by import By | |
from selenium.webdriver.support.ui import WebDriverWait | |
from selenium.webdriver.support import expected_conditions as EC | |
EMAIL = 'cqc@cuiqingcai.com' | |
PASSWORD = '' | |
BORDER = 6 | |
INIT_LEFT = 60 | |
class CrackGeetest(): | |
def __init__(self): | |
self.url = 'https://account.geetest.com/login' | |
self.browser = webdriver.Chrome() | |
self.wait = WebDriverWait(self.browser, 20) | |
self.email = EMAIL | |
self.password = PASSWORD | |
def __del__(self): | |
self.browser.close() | |
def get_geetest_button(self): | |
""" | |
获取初始验证按钮 | |
:return: | |
""" | |
button = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'geetest_radar_tip'))) | |
return button | |
def get_position(self): | |
""" | |
获取验证码位置 | |
:return: 验证码位置元组 | |
""" | |
img = self.wait.until(EC.presence_of_element_located((By.CLASS_NAME, 'geetest_canvas_img'))) | |
time.sleep(2) | |
location = img.location | |
size = img.size | |
top, bottom, left, right = location['y'], location['y'] + size['height'], location['x'], location['x'] + size[ | |
'width'] | |
return (top, bottom, left, right) | |
def get_screenshot(self): | |
""" | |
获取网页截图 | |
:return: 截图对象 | |
""" | |
screenshot = self.browser.get_screenshot_as_png() | |
screenshot = Image.open(BytesIO(screenshot)) | |
return screenshot | |
def get_slider(self): | |
""" | |
获取滑块 | |
:return: 滑块对象 | |
""" | |
slider = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'geetest_slider_button'))) | |
return slider | |
def get_geetest_image(self, name='captcha.png'): | |
""" | |
获取验证码图片 | |
:return: 图片对象 | |
""" | |
top, bottom, left, right = self.get_position() | |
println(u'验证码位置', top, bottom, left, right) | |
screenshot = self.get_screenshot() | |
captcha = screenshot.crop((int(left), int(top), int(right), int(bottom))) | |
captcha.save(name) | |
return captcha | |
def open(self): | |
""" | |
打开网页输入用户名密码 | |
:return: None | |
""" | |
self.browser.get(self.url) | |
email = self.wait.until(EC.presence_of_element_located((By.ID, 'email'))) | |
password = self.wait.until(EC.presence_of_element_located((By.ID, 'password'))) | |
email.send_keys(self.email) | |
password.send_keys(self.password) | |
def get_gap(self, image1, image2): | |
""" | |
获取缺口偏移量 | |
:param image1: 不带缺口图片 | |
:param image2: 带缺口图片 | |
:return: | |
""" | |
left = 60 | |
for i in range(left, image1.size[0]): | |
for j in range(image1.size[1]): | |
if not self.is_pixel_equal(image1, image2, i, j): | |
left = i | |
return left | |
return left | |
def is_pixel_equal(self, image1, image2, x, y): | |
""" | |
判断两个像素是否相同 | |
:param image1: 图片1 | |
:param image2: 图片2 | |
:param x: 位置x | |
:param y: 位置y | |
:return: 像素是否相同 | |
""" | |
# 取两个图片的像素点 | |
pixel1 = image1.load()[x, y] | |
pixel2 = image2.load()[x, y] | |
threshold = 60 | |
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_track(self, distance): | |
""" | |
根据偏移量获取移动轨迹 | |
:param distance: 偏移量 | |
:return: 移动轨迹 | |
""" | |
# 移动轨迹 | |
track = [] | |
# 当前位移 | |
current = 0 | |
# 减速阈值 | |
mid = distance * 4 / 5 | |
# 计算间隔 | |
t = 0.2 | |
# 初速度 | |
v = 0 | |
while current < distance: | |
if current < mid: | |
# 加速度为正2 | |
a = 2 | |
else: | |
# 加速度为负3 | |
a = -3 | |
# 初速度v0 | |
v0 = v | |
# 当前速度v = v0 + at | |
v = v0 + a * t | |
# 移动距离x = v0t + 1/2 * a * t^2 | |
move = v0 * t + 1 / 2 * a * t * t | |
# 当前位移 | |
current += move | |
# 加入轨迹 | |
track.append(round(move)) | |
return track | |
def move_to_gap(self, slider, track): | |
""" | |
拖动滑块到缺口处 | |
:param slider: 滑块 | |
:param track: 轨迹 | |
:return: | |
""" | |
ActionChains(self.browser).click_and_hold(slider).perform() | |
for x in track: | |
ActionChains(self.browser).move_by_offset(xoffset=x, yoffset=0).perform() | |
time.sleep(0.5) | |
ActionChains(self.browser).release().perform() | |
def login(self): | |
""" | |
登录 | |
:return: None | |
""" | |
submit = self.wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'login-btn'))) | |
submit.click() | |
time.sleep(10) | |
println(u'登录成功') | |
def crack(self): | |
# 输入用户名密码 | |
self.open() | |
# 点击验证按钮 | |
button = self.get_geetest_button() | |
button.click() | |
# 获取验证码图片 | |
image1 = self.get_geetest_image('captcha1.png') | |
# 点按呼出缺口 | |
slider = self.get_slider() | |
slider.click() | |
# 获取带缺口的验证码图片 | |
image2 = self.get_geetest_image('captcha2.png') | |
# 获取缺口位置 | |
gap = self.get_gap(image1, image2) | |
println(u'缺口位置', gap) | |
# 减去缺口位移 | |
gap -= BORDER | |
# 获取移动轨迹 | |
track = self.get_track(gap) | |
println(u'滑动轨迹', track) | |
# 拖动滑块 | |
self.move_to_gap(slider, track) | |
success = self.wait.until( | |
EC.text_to_be_present_in_element((By.CLASS_NAME, 'geetest_success_radar_tip_content'), u'验证成功')) | |
println(success) | |
# 失败后重试 | |
if not success: | |
self.crack() | |
else: | |
self.login() | |
# 兼容python2,python3 | |
def println(*args): | |
a = [] | |
for x in args: | |
if type(x) == unicode: | |
a.append( x ) | |
else: | |
a.append( str(x).decode() ) | |
print(u" ".join(a)) | |
if __name__ == '__main__': | |
crack = CrackGeetest() | |
crack.crack() |
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