自动填充用户名和密码 WKWebview Swift 3 Xcode

Posted 2023-02-24

【中文标题】自动填充用户名和密码 WKWebview Swift 3 Xcode

【英文标题】：Autofill Username and Password WKWebview Swift 3 Xcode

【发布时间】：2016-11-22 14:51:57

【问题描述】：

我正在尝试使用 WKWebView 类在 Swift 3 中制作应用程序以访问网站并自动填写用户名和密码。我已经尝试搜索了几天，但只能使用 Obj-C 和旧版本的 swift 找到答案。

我尝试使用这里提出的解决方案Autofill Username and Password UIWebView Swift

但是这在 Swift 3 中对我不起作用。这是我的示例代码：

import Foundation
import UIKit
import WebKit

class spot: UIViewController, UIWebViewDelegate 

@IBOutlet weak var container: UIView!
var webView: WKWebView!

override func viewDidLoad() 
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    webView = WKWebView()
    container.addSubview(webView)



override func viewDidAppear(_ animated: Bool) 
    let frame = CGRect(x:0, y:0, width:container.bounds.width, height:container.bounds.height)
    webView.frame = frame

    // Insert URL below to change launched page
    let urlStr = "https://login.salesforce.com/"
    let url = NSURL(string: urlStr)!
    let request = NSURLRequest(url: url as URL)
    webView.load(request as URLRequest)



func webViewDidFinishLoad(_ webView: UIWebView!) 

    let savedUsername = UserDefaults.standard.string(forKey: "USERNAME")
    let savedPassword = UserDefaults.standard.string(forKey: "PASSWORD")

    if savedUsername == nil || savedPassword == nil return

    if ( countElements(savedUsername!) != 0 && countElements(savedPassword!) != 0) 
        let loadUsernameJS = "var inputFields = document.querySelectorAll(\"input[name='username']\"); \\ for (var i = inputFields.length >>> 0; i--;)  inputFields[i].value = \'\(savedUsername)\';"
        let loadPasswordJS = "var inputFields = document.querySelectorAll(\"input[name='password']\"); \\ for (var i = inputFields.length >>> 0; i--;)  inputFields[i].value = \'\(savedPassword)\';"

        self.webView.stringByEvaluatingjavascriptFromString(loadUsernameJS)
        self.webView.stringByEvaluatingJavaScriptFromString(loadPasswordJS)
    



override func didReceiveMemoryWarning() 
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.

【参考方案1】：

这里有一点非常重要，即 id (getElementById)，请仔细检查您使用的 id 是否正确，该 id 用于您的 Web 表单。

func webViewDidFinishLoad(_ webView: UIWebView) 

    if (email == "" || password == "") return

    // fill data

    let fillForm = String(format: "document.getElementById('email').value = '\(email)';document.getElementById('pass').value = '\(password)';")
    webView.stringByEvaluatingJavaScript(from: fillForm)

【参考方案2】：

我知道它有点晚了，但这是我如何使它工作的代码。这就是说服务器在我构造它时期待该字符串，但我希望您了解您的特定服务器如何期望构造 URLRequest。

    @IBOutlet weak var loadingWebPage: UIActivityIndicatorView!


override func viewDidLoad() 
    super.viewDidLoad()

    let savedUsername = UserDefaults.standard.string(forKey: "USERNAME")
    let savedPassword = UserDefaults.standard.string(forKey: "PASSWORD")
    let urlStr = "https://login.salesforce.com/"

    myWebView = WKWebView()
    myWebView.uiDelegate = self
    myWebView.navigationDelegate = self

    setUrlString = "\(urlStr)?username=\(savedUsername)&password=\(savedPassword)"
    

override func viewWillAppear(_ animated: Bool) 

    view.addSubview(myWebView)
    myWebView.translatesAutoresizingMaskIntoConstraints = false
    let width = NSLayoutConstraint(item: myWebView, attribute: .width, relatedBy: .equal, toItem: view, attribute: .width, multiplier: 1.0, constant: 0)
    let height = NSLayoutConstraint(item: myWebView, attribute: .height, relatedBy: .equal, toItem: view, attribute: .height, multiplier: 1.0, constant: -70)
    let top = NSLayoutConstraint(item: myWebView, attribute: .top, relatedBy: .equal, toItem: view, attribute: .top, multiplier: 1.0, constant: 70)
    view.addConstraints([width,height,top])
    self.myWebView.addSubview(loadingWebPage)

    let myURL = URL(string: setUrlString)
    let myRequest = URLRequest(url: myURL!)
    myWebView.load(myRequest)

希望这会有所帮助。

【讨论】：

另外，您应该使用 KeyChain 而不是 UserDefaults 来安全地存储密码。