127 lines
4.7 KiB
Python
127 lines
4.7 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Created on 2019年9月24日
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@author: Irony
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@site: https://pyqt5.com https://github.com/892768447
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@email: 892768447@qq.com
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@file: QWebEngineView.BlockAds
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@description: 拦截请求
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"""
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from PyQt5.QtCore import QUrl
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from PyQt5.QtNetwork import QNetworkAccessManager, QNetworkRequest
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from PyQt5.QtWebEngineCore import QWebEngineUrlSchemeHandler, QWebEngineUrlScheme, \
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QWebEngineUrlRequestInterceptor
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from PyQt5.QtWebEngineWidgets import QWebEngineView, QWebEngineProfile
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__Author__ = 'Irony'
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__Copyright__ = 'Copyright (c) 2019'
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__Version__ = 'Version 1.0'
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class UrlSchemeHandler(QWebEngineUrlSchemeHandler):
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AttrType = QNetworkRequest.User + 1
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def __init__(self, *args, **kwargs):
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super(UrlSchemeHandler, self).__init__(*args, **kwargs)
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self._manager = QNetworkAccessManager(self)
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self._manager.finished.connect(self.onFinished)
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def requestStarted(self, request):
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# 拦截
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# request.fail(QWebEngineUrlRequestJob.RequestDenied)
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# print('initiator:', request.initiator())
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print('requestMethod:', request.requestMethod())
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print('requestHeaders:', request.requestHeaders())
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url = request.requestUrl()
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if url.scheme().startswith('myurl'):
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url.setScheme(url.scheme().replace('myurl', 'http'))
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print('requestUrl:', url)
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# 构造真实请求
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req = QNetworkRequest(url)
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req.setAttribute(self.AttrType, request) # 记录
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for headerName, headerValue in request.requestHeaders().items():
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req.setRawHeader(headerName, headerValue)
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method = request.requestMethod()
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# TODO: 这里需要把浏览器内部的cookie获取出来重新设置
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if method == b'GET':
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self._manager.get(req)
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# TODO: 这里貌似没法得到POST的数据，ajax的请求貌似也有问题
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elif method == b'POST':
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self._manager.post(req)
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def onFinished(self, reply):
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req = reply.request() # 获取请求
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o_req = req.attribute(self.AttrType, None)
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if o_req:
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# Notice: 这里可以对数据做修改再返回
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# TODO: 可能还存在 QNetworkAccessManager 与浏览器之间的 cookie 同步问题
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o_req.reply(req.header(QNetworkRequest.ContentTypeHeader) or b'text/html', reply)
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o_req.destroyed.connect(reply.deleteLater)
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# 把所有请求重定向到myurl
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class RequestInterceptor(QWebEngineUrlRequestInterceptor):
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def interceptRequest(self, info):
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url = info.requestUrl()
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if url.scheme() == 'http':
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# 重定向
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url.setScheme('myurl')
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info.redirect(url)
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elif url.scheme() == 'https':
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# 重定向
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url.setScheme('myurls')
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info.redirect(url)
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class Window(QWebEngineView):
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def __init__(self, *args, **kwargs):
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super(Window, self).__init__(*args, **kwargs)
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self.resize(800, 600)
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profile = QWebEngineProfile.defaultProfile()
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# 首先获取默认的url协议
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o_http = QWebEngineUrlScheme.schemeByName(b'http')
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o_https = QWebEngineUrlScheme.schemeByName(b'https')
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print('scheme:', o_http, o_https)
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# 这里需要修改增加本地文件和跨域支持
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CorsEnabled = 0x80 # 5.14才增加
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o_http.setFlags(
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o_http.flags() | QWebEngineUrlScheme.SecureScheme | QWebEngineUrlScheme.LocalScheme | QWebEngineUrlScheme.LocalAccessAllowed | CorsEnabled)
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o_https.setFlags(
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o_https.flags() | QWebEngineUrlScheme.SecureScheme | QWebEngineUrlScheme.LocalScheme | QWebEngineUrlScheme.LocalAccessAllowed | CorsEnabled)
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# 安装url拦截器和自定义url协议处理
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de = QWebEngineProfile.defaultProfile() # @UndefinedVariable
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de.setRequestInterceptor(RequestInterceptor(self))
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self.urlSchemeHandler = UrlSchemeHandler(self)
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de.installUrlSchemeHandler(b'myurl', self.urlSchemeHandler) # for http
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de.installUrlSchemeHandler(b'myurls', self.urlSchemeHandler) # for https
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if __name__ == '__main__':
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import sys
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import os
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import webbrowser
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import cgitb
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cgitb.enable(format='text')
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from PyQt5.QtWidgets import QApplication
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app = QApplication(sys.argv)
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# 开启F12 控制台功能，需要单独通过浏览器打开这个页面
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# 这里可以做个保护, 发布软件,启动时把这个环境变量删掉。防止他人通过环境变量开启
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os.environ['QTWEBENGINE_REMOTE_DEBUGGING'] = '9966'
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# 打开调试页面
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webbrowser.open_new_tab('http://127.0.0.1:9966')
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w = Window()
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w.show()
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w.load(QUrl('https://pyqt.site'))
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sys.exit(app.exec_())
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