在 iOS WKWebView 中保留“Referer”标头？

Posted 2023-02-23

【中文标题】在 iOS WKWebView 中保留“Referer”标头？

【英文标题】：Persist “Referer” header in iOS WKWebView?

【发布时间】：2021-07-16 06:32:24

【问题描述】：

我在 WKWebView 中传递自定义标题。但是在重定向标头上会更新为新标头。 例如，我在浏览器中输入了“MyName”，现在打印语句Referer 已更改“Referer”，它将打开搜索结果：“https://www.google.com/” 如何在重定向中保留自定义标头。

在 WKWebView, decidePolicyFor navigationAction: WKNavigationAction 中，函数头在重定向时得到更新。

navigationAction.request.setValue("/App/app/ios", forHTTPHeaderField: "Referer")这不行

import WebKit

class WKWEBViewController: UIViewController, WKNavigationDelegate 
    
    private var wkWebView: WKWebView!
    var loadURLString = "https://www.google.com"
    
    var customHeaders:[String:String] = ["Referer":"/AppleApp/app/iOS"]
    
    override func viewDidLoad() 
    
    
    override func viewWillAppear(_ animated: Bool) 
        super.viewWillAppear(true)
        loadURL()
    
    
    private func loadURL() 
        let config = WKWebViewConfiguration()
        wkWebView = WKWebView(frame: UIScreen.main.bounds, configuration: config)
        wkWebView.navigationDelegate = self
        wkWebView.backgroundColor = .white
        wkWebView.scrollView.backgroundColor = .white
        view.backgroundColor = .white
        view.addSubview(wkWebView)
        
        if let pdfurl = URL(string: loadURLString) 
            var urlRequest = URLRequest(url: pdfurl)
            if customHeaders.count != 0 
                for obj in customHeaders 
                    urlRequest.addValue(obj.value, forHTTPHeaderField: obj.key)
                
            
            wkWebView.load(urlRequest)
        
    


extension WKWEBViewController 
    
    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) 
        let request = navigationAction.request
        print("URl--->", request.url)
        if let headers = request.allHTTPHeaderFields 
            print("Headers: \(headers)")
         else 
            print("Nope, sir")
        
        decisionHandler(.allow)
    

【问题讨论】：

那些客户标题是什么？

之前var customHeaders:[String:String] = ["Referer":"/AppleApp/app/iOS"]之后"Referer": "https://www.google.com/"@ElTomato

【参考方案1】：

喜欢下面的？

import UIKit
import WebKit

class ViewController: UIViewController, WKNavigationDelegate 
    // MARK: - IBOutlet
    @IBOutlet weak var webView: WKWebView!
    
    
    // MARK: - Life cycle
    override func viewDidLoad() 
        super.viewDidLoad()
        webView.navigationDelegate = self
    
    
    override func viewDidAppear(_ animated: Bool) 
        super.viewDidAppear(animated)
        
        let urlStr = "https://www.google.com/"
        if let url = URL(string: urlStr) 
            let request = URLRequest(url: url)
            webView.load(request)
        
    
    
    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) 
        var request = navigationAction.request
        if let host = navigationAction.request.url?.host 
            if host == "www.google.com" 
                request.setValue("https://www.google.com/", forHTTPHeaderField: "Referer")
                if let headers = request.allHTTPHeaderFields 
                    print("Google Headers: \(headers)")
                
            
        
        decisionHandler(.allow)
    

以下是结果

Google 标头：[“Referer”：“https://www.google.com/”、“User-Agent”： “Mozilla/5.0（iPhone；CPU iPhone OS 14_4 像 Mac OS X） AppleWebKit/605.1.15（Khtml，如 Gecko）”、“接受”： "text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8"]

【讨论】：

但是您没有将标题分配给navigationAction & in WKWebView

我明白了。我不知道你能不能做到。

我试过navigationAction.request.setValue("/App/app/iOS", forHTTPHeaderField: "Referer") 不行