如何在webkitgtk中获取响应体？

#include <webkit2/webkit2.h>

static void responseReceivedCallback(WebKitWebView* webView, WebKitWebResource* resource, WebKitURIRequest* request, WebKitNetworkResponse* response, gpointer userData) {
    GBytes* responseBody = webkit_network_response_get_body(response);
    gsize dataSize = 0;
    const guint8* data = g_bytes_get_data(responseBody, &dataSize);
    
    // 处理响应体的数据，比如将其转换为字符串
    gchar* responseBodyString = g_strndup((gchar*)data, dataSize);
    
    // 打印响应体
    g_print("Response Body: %s\n", responseBodyString);
    
    // 释放资源
    g_free(responseBodyString);
    g_bytes_unref(responseBody);
}

int main(int argc, char** argv) {
    // 初始化GTK+
    gtk_init(&argc, &argv);
    
    // 创建一个Web视图
    GtkWidget* webView = webkit_web_view_new();
    
    // 注册响应接收的回调函数
    g_signal_connect(webView, "resource-response-received", G_CALLBACK(responseReceivedCallback), NULL);
    
    // 加载网页
    webkit_web_view_load_uri(WEBKIT_WEB_VIEW(webView), "https://example.com");
    
    // 运行主循环
    gtk_main();
    
    return 0;
}