224 lines
8.3 KiB
Python
224 lines
8.3 KiB
Python
import base64
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from typing import Tuple, Optional
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from lxml import etree
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from playwright.sync_api import Page
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from app.helper.browser import PlaywrightHelper
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from app.helper.ocr import OcrHelper
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from app.log import logger
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from app.utils.http import RequestUtils
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from app.utils.site import SiteUtils
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from app.utils.string import StringUtils
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class CookieHelper:
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# 站点登录界面元素XPATH
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_SITE_LOGIN_XPATH = {
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"username": [
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'//input[@name="username"]',
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'//input[@id="form_item_username"]',
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'//input[@id="username"]'
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],
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"password": [
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'//input[@name="password"]',
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'//input[@id="form_item_password"]',
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'//input[@id="password"]'
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],
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"captcha": [
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'//input[@name="imagestring"]',
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'//input[@name="captcha"]',
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'//input[@id="form_item_captcha"]'
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],
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"captcha_img": [
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'//img[@alt="CAPTCHA"]/@src',
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'//img[@alt="SECURITY CODE"]/@src',
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'//img[@id="LAY-user-get-vercode"]/@src',
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'//img[contains(@src,"/api/getCaptcha")]/@src'
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],
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"submit": [
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'//input[@type="submit"]',
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'//button[@type="submit"]',
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'//button[@lay-filter="login"]',
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'//button[@lay-filter="formLogin"]',
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'//input[@type="button"][@value="登录"]'
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],
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"error": [
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"//table[@class='main']//td[@class='text']/text()"
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],
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"twostep": [
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'//input[@name="two_step_code"]',
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'//input[@name="2fa_secret"]'
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]
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}
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@staticmethod
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def parse_cookies(cookies: list) -> str:
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"""
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将浏览器返回的cookies转化为字符串
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"""
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if not cookies:
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return ""
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cookie_str = ""
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for cookie in cookies:
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cookie_str += f"{cookie['name']}={cookie['value']}; "
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return cookie_str
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def get_site_cookie_ua(self,
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url: str,
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username: str,
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password: str,
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proxies: dict = None) -> Tuple[Optional[str], Optional[str], str]:
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"""
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获取站点cookie和ua
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:param url: 站点地址
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:param username: 用户名
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:param password: 密码
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:param proxies: 代理
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:return: cookie、ua、message
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"""
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def __page_handler(page: Page) -> Tuple[Optional[str], Optional[str], str]:
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"""
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页面处理
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:return: Cookie和UA
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"""
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# 登录页面代码
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html_text = page.content()
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if not html_text:
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return None, None, "获取源码失败"
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# 查找用户名输入框
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html = etree.HTML(html_text)
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username_xpath = None
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for xpath in self._SITE_LOGIN_XPATH.get("username"):
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if html.xpath(xpath):
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username_xpath = xpath
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break
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if not username_xpath:
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return None, None, "未找到用户名输入框"
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# 查找密码输入框
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password_xpath = None
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for xpath in self._SITE_LOGIN_XPATH.get("password"):
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if html.xpath(xpath):
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password_xpath = xpath
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break
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if not password_xpath:
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return None, None, "未找到密码输入框"
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# 查找验证码输入框
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captcha_xpath = None
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for xpath in self._SITE_LOGIN_XPATH.get("captcha"):
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if html.xpath(xpath):
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captcha_xpath = xpath
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break
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# 查找验证码图片
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captcha_img_url = None
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if captcha_xpath:
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for xpath in self._SITE_LOGIN_XPATH.get("captcha_img"):
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if html.xpath(xpath):
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captcha_img_url = html.xpath(xpath)[0]
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break
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if not captcha_img_url:
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return None, None, "未找到验证码图片"
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# 查找登录按钮
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submit_xpath = None
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for xpath in self._SITE_LOGIN_XPATH.get("submit"):
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if html.xpath(xpath):
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submit_xpath = xpath
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break
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if not submit_xpath:
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return None, None, "未找到登录按钮"
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# 点击登录按钮
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try:
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# 等待登录按钮准备好
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page.wait_for_selector(submit_xpath)
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# 输入用户名
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page.fill(username_xpath, username)
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# 输入密码
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page.fill(password_xpath, password)
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# 识别验证码
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if captcha_xpath and captcha_img_url:
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captcha_element = page.query_selector(captcha_xpath)
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if captcha_element.is_visible():
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# 验证码图片地址
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code_url = self.__get_captcha_url(url, captcha_img_url)
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# 获取当前的cookie和ua
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cookie = self.parse_cookies(page.context.cookies())
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ua = page.evaluate("() => window.navigator.userAgent")
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# 自动OCR识别验证码
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captcha = self.get_captcha_text(cookie=cookie, ua=ua, code_url=code_url)
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if captcha:
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logger.info("验证码地址为：%s，识别结果：%s" % (code_url, captcha))
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else:
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return None, None, "验证码识别失败"
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# 输入验证码
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captcha_element.fill(captcha)
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else:
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# 不可见元素不处理
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pass
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# 点击登录按钮
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page.click(submit_xpath)
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page.wait_for_load_state("networkidle", timeout=30 * 1000)
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except Exception as e:
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logger.error(f"仿真登录失败：{e}")
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return None, None, f"仿真登录失败：{e}"
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# 登录后的源码
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html_text = page.content()
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if not html_text:
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return None, None, "获取网页源码失败"
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if SiteUtils.is_logged_in(html_text):
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return self.parse_cookies(page.context.cookies()), \
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page.evaluate("() => window.navigator.userAgent"), ""
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else:
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# 读取错误信息
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error_xpath = None
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for xpath in self._SITE_LOGIN_XPATH.get("error"):
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if html.xpath(xpath):
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error_xpath = xpath
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break
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if not error_xpath:
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return None, None, "登录失败"
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else:
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error_msg = html.xpath(error_xpath)[0]
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return None, None, error_msg
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if not url or not username or not password:
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return None, None, "参数错误"
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return PlaywrightHelper().action(url=url,
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callback=__page_handler,
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proxies=proxies)
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@staticmethod
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def get_captcha_base64(cookie: str, ua: str, image_url: str) -> str:
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"""
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根据图片地址，使用浏览器获取验证码图片base64编码
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"""
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if not image_url:
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return ""
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ret = RequestUtils(ua=ua, cookies=cookie).get_res(image_url)
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if ret:
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return base64.b64encode(ret.content).decode()
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return ""
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def get_captcha_text(self, cookie: str, ua: str, code_url: str) -> str:
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"""
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识别验证码图片的内容
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"""
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code_b64 = self.get_captcha_base64(cookie=cookie,
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ua=ua,
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image_url=code_url)
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if not code_b64:
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return ""
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return OcrHelper().get_captcha_text(image_b64=code_b64)
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@staticmethod
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def __get_captcha_url(siteurl: str, imageurl: str) -> str:
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"""
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获取验证码图片的URL
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"""
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if not siteurl or not imageurl:
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return ""
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if imageurl.startswith("/"):
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imageurl = imageurl[1:]
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return "%s/%s" % (StringUtils.get_base_url(siteurl), imageurl)
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