import requests
from PIL import Image
import jsons
requests.packages.urllib3.disable_warnings()
headers = {
"User-Agent": 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36'
}
session = requests.session()
# 获取验证码位置
def get_captcha_position(img_name="12303_captcha.png"):
url = "https://kyfw.12306.cn/passport/captcha/captcha-image?login_site=E&module=login&rand=sjrand";
try:
response = session.get(url=url, headers=headers, verify=False)
except ConnectionError as e:
print(e)
else:
with open(img_name, "wb") as f:
f.write(response.content)
try:
# 人眼查看验证码
with Image.open(img_name) as img:
img.show()
except FileNotFoundError as e:
print(e)
else:
# =======================================================================
# 根据打开的图片识别验证码输入图片索引序号,有可以是1张、2张、3张图片的序号,序号之间用逗号隔开
# 例如2,4,6,表示第1排第2,第2排第4,6张
# ---------------------------------------
# | | |
# 0 | 1 | 2 | 3
# | | |
# ---------------------------------------
# | | |
# 4 | 5 | 6 | 7
# | | |
# ---------------------------------------
# =======================================================================
input_index = input('请输入验证码位置,以","分割(例如2,4,6):')
return input_index
# 校验验证码
def check_captcha(index):
index_list = str(index).split(",")
# 由于12306官方验证码是验证正确验证码的坐标范围,我们取每个验证码中点的坐标(大约值)
img_center_position = ['35,35', '105,35', '175,35', '245,35', '35,105', '105,105', '175,105', '245,105']
right_position = []
for i in index_list:
right_position.append(img_center_position[int(i)])
right_position_str = ",".join(right_position)
check_captcha_url = "https://kyfw.12306.cn/passport/captcha/captcha-check"
data = {
'login_site': 'E', # 固定的
'rand': 'sjrand', # 固定的
'answer': right_position_str # 验证码对应的中心坐标字符串序号
}
try:
response = session.post(url=check_captcha_url, data=data, headers=headers, verify=False)
except ConnectionError as e:
print(e)
else:
json_result = jsons.loads(response.content)
print(json_result)
check_code = int(json_result['result_code'])
# 取出验证结果,4:成功 5:验证失败 7:过期
if check_code == 4:
print(json_result['result_message'])
return True
elif check_code == 5:
print(json_result['result_message'])
else:
print(json_result['result_message'])
return False
def main():
img_index = get_captcha_position()
check_captcha(img_index)
if __name__ == '__main__':
main()
结果如图: