QWebEngineView实现HTTP请求的拦截

365开发网 • 2020年10月14日 am7:15 • 未分类 • 阅读 18

在配置文件上实现QWebEngineUrlRequestInterceptor接口并安装拦截器，在它们到达 Chromium的网络堆栈之前，可以拦截。阻塞和修改URL请求。它是一个抽象类，意味着需要子类化它才能得到所需的内容。

#include <QWebEngineUrlRequestInterceptor>
#include <QDebug>

class RequestInterceptor : public QWebEngineUrlRequestInterceptor
{
public:
 explicit RequestInterceptor(QObject * parent = Q_NULLPTR) : QWebEngineUrlRequestInterceptor(parent) {}
 virtual void interceptRequest(QWebEngineUrlRequestInfo & info) Q_DECL_OVERRIDE;
};

void RequestInterceptor::interceptRequest(QWebEngineUrlRequestInfo & info)
{
//Intercepting the requested URL
 QUrl url = info.requestUrl();
 qDebug() <<"Request URL:" <<url;
//Optionally redirect the request URL but it only works for requests 
//without payload data such as GET ones
 info.redirect(QUrl("https://www.google.com"));
//Set HTTP header
 QByteArray httpHeaderName ="SomeHeaderName";
 QByteArray httpHeaderValue ="SomeHeaderValue";
 info.setHttpHeader(httpHeaderName, httpHeaderValue);
}

然后，需要在中为特定的QWebEnginePage 指定指向该拦截器的指针，如下所示：

QWebEngineView * view = new QWebEngineView;
RequestInterceptor * interceptor = new RequestInterceptor(view);
QWebEngineProfile * profile = new QWebEngineProfile(view);
profile->setRequestInterceptor(interceptor);
QWebEnginePage * page = new QWebEnginePage(profile, view);
view->setPage(page);

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QWebEngineView实现HTTP请求的拦截

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