拦截请求

PyQt5 · Sep 24, 2019 · 0d37722 · 0d37722
1 parent 22c3bd1
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diff --git a/.settings/org.eclipse.core.resources.prefs b/.settings/org.eclipse.core.resources.prefs
@@ -62,6 +62,7 @@ encoding//QWebEngineView/GetCookie.py=utf-8
 encoding//QWebEngineView/JsSignals.py=utf-8
 encoding//QWebEngineView/ScreenShotPage.py=utf-8
 encoding//QWebEngineView/SiteDiffUser.py=utf-8
+encoding//QWebView/BlockRequest.py=utf-8
 encoding//QWebView/DreamTree.py=utf-8
 encoding//QWebView/GetCookie.py=utf-8
 encoding//QWebView/JsSignals.py=utf-8

diff --git a/QWebView/BlockRequest.py b/QWebView/BlockRequest.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Created on 2019年9月24日
+@author: Irony
+@site: https://pyqt5.com https://github.com/892768447
+@email: 892768447@qq.com
+@file: QWebView.BlockAds
+@description: 拦截请求
+"""
+from PyQt5.QtCore import QUrl
+from PyQt5.QtNetwork import QNetworkAccessManager
+from PyQt5.QtWebKitWidgets import QWebView
+
+
+__Author__ = 'Irony'
+__Copyright__ = 'Copyright (c) 2019'
+__Version__ = 'Version 1.0'
+
+
+class RequestInterceptor(QNetworkAccessManager):
+
+    def createRequest(self, op, originalReq, outgoingData):
+        """创建请求
+        :param op:           操作类型见http://doc.qt.io/qt-5/qnetworkaccessmanager.html#Operation-enum
+        :param originalReq:  原始请求
+        :param outgoingData: 输出数据
+        """
+        url = originalReq.url().toString()
+        if url.find('pos.baidu.com') > -1 and url.find('ltu=') > -1:
+            # 拦截百度联盟的广告
+            print('block:', url)
+            originalReq.setUrl(QUrl())
+
+        return super(RequestInterceptor, self).createRequest(op, originalReq, outgoingData)
+
+
+class Window(QWebView):
+
+    def __init__(self, *args, **kwargs):
+        super(Window, self).__init__(*args, **kwargs)
+        self.resize(800, 600)
+        self.page().setNetworkAccessManager(RequestInterceptor(self))
+
+
+if __name__ == '__main__':
+    import sys
+    from PyQt5.QtWidgets import QApplication
+    app = QApplication(sys.argv)
+    w = Window()
+    w.show()
+    w.load(QUrl('https://so.csdn.net/so/search/s.do?q=Qt&t=blog'))
+    sys.exit(app.exec_())
diff --git a/QWebView/README.md b/QWebView/README.md
@@ -6,6 +6,7 @@
   - [和Js交互操作](#3和Js交互操作)
   - [网页整体截图](#4网页整体截图)
   - [播放Flash](#5播放Flash)
+  - [拦截请求](#6拦截请求)
 
 ## 1、梦幻树
 [运行 DreamTree.py](DreamTree.py)
@@ -46,4 +47,11 @@
 1. 重点在于设置 `os.environ['QTWEBKIT_PLUGIN_PATH'] = os.path.abspath('Data')` ，非常重要，设置为NPSWF32.dll文件所在目录
 2. 其次是xp下ssl问题,具体参考代码
 
-![PlayFlash](ScreenShot/PlayFlash.gif)
+![PlayFlash](ScreenShot/PlayFlash.gif)
+
+## 6、拦截请求
+[运行 BlockRequest.py](BlockRequest.py)
+
+通过`QNetworkAccessManager`中的`createRequest`方法对每个请求做拦截过滤
+
+![BlockRequest](ScreenShot/BlockRequest.gif)
diff --git a/QWebView/ScreenShot/BlockRequest.png b/QWebView/ScreenShot/BlockRequest.png
diff --git a/README.md b/README.md
@@ -131,6 +131,7 @@ https://pyqt5.com 社区是专门针对PyQt5学习和提升开设的博客网站
     - [和Js交互操作](QWebView/JsSignals.py)
     - [网页整体截图](QWebView/ScreenShotPage.py)
     - [播放Flash](QWebView/PlayFlash.py)
+    - [拦截请求](QWebView/BlockRequest.py)
   - [QWebEngineView](QWebEngineView)
     - [获取Cookie](QWebEngineView/GetCookie.py)
     - [和Js交互操作](QWebEngineView/JsSignals.py)