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from selenium import webdriver
# 导入配置
from selenium.webdriver.chrome.options import Options
import time
from PIL import Image
# 导入动作链
from selenium.webdriver.common.action_chains import ActionChains
import random, string
# 定义计算移动距离的函数
def get_difference(image1,image2):
    """
    循环每一个点，计算出对应的像素值
    """
    # 外层循环循环长度
    for i in range(image1.width):
        # 内层循环循环宽度
        for j in range(image1.height):
            # 找出缺口
            if not is_similar(image1,image2,i,j):
                return i

# 定义找出缺口位置的函数
def is_similar(image1,image2,x,y):
    # 计算RGB值
    pixel1 = image1.getpixel((x,y))
    pixel2 = image2.getpixel((x,y))
    # 设置一个容差范围，设置30位容差范围
    if abs(pixel1[0] - pixel2[0]) >30 and abs(pixel1[1] - pixel2[1]) > 30 and abs(pixel1[2] - pixel2[2])>30:
        return False
    return True

# 定义获取运动轨迹函数
def get_tracks(distance):
    """
    v = v0+at
    x = v0t+1/2at**2
    """
    # 定义存放运动轨迹的列表
    tracks = []
    # 定义初速度
    v = 0
    # 定义单位时间
    t = 0.5
    # 定义匀加速运动和匀减速运动的分界线
    mid = distance * 4/5
    # 定义当前位移
    current = 0
    # 为了一直移动，定义循环
    while current < distance:
        if mid > current:
            a = 2
        else:
            a = -3
        v0 = v
        # 计算位移
        x = v0 * t + 1/2*a*t**2
        # 计算滑块当前位移
        current += x
        # 计算末速度
        v = v0+a*t
        tracks.append(round(x))
    return tracks

# 实例化Options对象
options = Options()

# 启动开发者模式
options.add_experimental_option('excludeSwitches',['enable-automation'])
options.add_experimental_option('useAutomationExtension',False)

# 2. 调用浏览器
driver = webdriver.Chrome(executable_path=r'D:\chorme\Chrome\Application\chromedriver.exe',options=options)

# 将webdriver属性干掉
driver.execute_cdp_cmd(
    "Page.addScriptToEvaluateOnNewDocument",{
        "source":'Object.defineProperty(navigator,"webdriver",{get:()=>undefined})'
    }
)

# 最大化窗口
driver.maximize_window()

# 3. 请求
driver.get(url='https://www.sf-express.com/we/ow/chn/sc/waybill/waybill-detail/SF1638641302904')

# 出现滑块验证码
# 发现：每一个滑块移动的距离都是不同的，差距也比较大，所以，不能够写一个固定的移动距离
# 思路：将移动距离计算出来
# 核心：
# 1. 找出无缺口的图片
# 2. 使用有缺口的图片和无缺口的图片做对比
# 目的：获取移动的距离（确定缺口位置）

# 休眠，等待验证码加载
time.sleep(3)

# 截图，获取有缺口图片
driver.switch_to.frame('tcaptcha_iframe')
# elements = driver.find_element_by_xpath('//*[@id="tcWrap"]')
driver.save_screenshot('quekou.png')

# 找到图片
# driver.switch_to.frame('tcaptcha_iframe')
element = driver.find_element_by_xpath('//*[@id="tcWrap"]')

# 获取图片位置
# loaction：获取元素位置
# size：获取元素大小
print(element.location)
print(element.size)

# 计算截图范围
left = element.location['x']
right = element.location['x'] + element.size['width']
top = element.location['y']
bottom = element.location['y'] + element.size['height']

# 打开图片
im = Image.open('quekou.png')
# # 开始局部截图
im = im.crop((left+502,top+150,right+502,bottom+150))
im.save('quekou_jubu.png')


# 执行js，显示无缺口图片
# driver.execute_script('document.getElementsByClassName("geetest_canvas_fullbg")[0].style="display:block"')
driver.find_element_by_xpath('//*[@id="slideBlock"]')
#
# # 截取无缺口图片
driver.save_screenshot('wuque.png')
#
im = Image.open('wuque.png')
# 开始局部截图
im = im.crop((left+560,top+710,right,bottom))
# im.save('wuque_jubu.png')

# 将两张图片进行对比，计算移动距离
# wuque_jubu = Image.open('wuque_jubu.png')
# quekou_jubu = Image.open('quekou_jubu.png')
# distance = get_difference(wuque_jubu,quekou_jubu)
# 142 150 155

ua_list = [  142,150, 155,160]

for ii in ua_list:
    distance = ii

    # 获取滑块
    huakuai = driver.find_element_by_xpath('//*[@id="tcaptcha_drag_thumb"]')
    ActionChains(driver).click_and_hold(on_element=huakuai).perform()
    ActionChains(driver).move_by_offset(xoffset=(distance+54)*0.8,yoffset=0).perform()
    tracks = get_tracks((distance+54)*0.2)
    for track in tracks:
        ActionChains(driver).move_by_offset(xoffset=track,yoffset=0).perform()

    time.sleep(1)

    # 释放鼠标
    ActionChains(driver).release().perform()
    time.sleep(5)
    try:
        status = driver.find_element_by_xpath('//*[@id="app"]/div[3]/div/div[2]/div[3]/div[2]/div/div[2]/div/ul[1]/li[1]/span').text
        time = driver.find_element_by_xpath('//*[@id="app"]/div[3]/div/div[2]/div[3]/div[2]/div/div[2]/div/ul[1]/li[3]/span').text
        content = driver.find_element_by_xpath('//*[@id="app"]/div[3]/div/div[2]/div[3]/div[2]/div/div[2]/div/ul[1]/li[4]/span').text

        print(status,time,content)
        driver.quit()
        break
    except Exception:
        pass

print('succ')