iOS 如何为每个 UIWebView 请求添加 cookie？
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【中文标题】iOS 如何为每个 UIWebView 请求添加 cookie？【英文标题】：iOS How to add cookie to each UIWebView request? 【发布时间】：2018-01-17 06:40:06 【问题描述】：我需要在 UIWebView 中使用 Angular 打开 URL，并且我需要在每个 UIWebView 请求中发送 cookie。
我想做什么：
我尝试检查请求是否包含 cookie。如果它确实 UIWebView 执行请求，如果不是我创建相同的请求但使用 cookie 并执行它。为了替换请求，我使用了UIWebViewDelegate 的方法func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool。但它不像我预期的那样工作，一些请求在没有 cookie 的情况下执行。
我的代码：
final class FieldServiceViewController: UIViewController
private var webView = UIWebView()
private var sessionID = String()
override func viewDidLoad()
super.viewDidLoad()
_ = JSONAPI.getSessionID().subscribe(onNext: [weak self] sessionID in
self?.sessionID = sessionID
self?.configureUI()
let string = "https://someURL"
let url = URL(string: string)
let request = URLRequest(url: url!)
self?.webView.loadRequest(request)
)
override func viewDidLayoutSubviews()
super.viewDidLayoutSubviews()
webView.frame = view.bounds
private func configureUI()
webView.delegate = self
view.addSubview(webView)
private func cookedRequest(from: URLRequest) -> URLRequest?
let cookiesKey = "Cookie"
let headers = from.allHTTPHeaderFields ?? [:]
if (headers.contains $0.0 == cookiesKey )
return nil
var request = from
request.cachePolicy = .reloadIgnoringLocalAndRemoteCacheData
let cookiesToAdd = "SESSIONID=\(sessionID)"
request.addValue(cookiesToAdd, forHTTPHeaderField: cookiesKey)
return request
extension FieldServiceViewController: UIWebViewDelegate
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool
if let cooked = cookedRequest(from: request)
webView.loadRequest(cooked)
return false
return true
如何在每个 UIWebView 请求中添加 cookie？
附：我还在HTTPCookieStorage中保存了cookie，但看起来UIWebView的请求和共享存储之间根本没有联系。
【问题讨论】：
【参考方案1】：我更喜欢 WKWebView 而不是 UIWebView，因为 UIWebView 是 deprecated。
现在关于将会话 ID 添加到您的 Angular 发出的每个请求中 项目。
我建议不要通过从委托方法创建新请求来添加会话 ID，而是在 Angular 级别添加 request interceptor，这将使您能够更好地控制 Angular 项目发出的每个请求。
通过匿名工厂
注册拦截器$httpProvider.interceptors.push(function($q, dependency1, dependency2)
return
'request': function(config)
config.headers['SESSIONID'] = 'Your Session id here';
,
'response': function(response)
;
);
现在如何使用它。
您可以将上述代码转换为 Swift 字符串，当您拥有会话 ID 并加载 Angular 项目时，您可以通过 wkwebview 的 evaluatejavascript 方法执行此操作。
例如
var sessionId = "you id"
var s="\n" +
" $httpProvider.interceptors.push(function($q, dependency1, dependency2) \n" +
" return \n" +
" \'request\': function(config) \n" +
" config.headers[\'SESSIONID\'] = \'\(sessionId)\';\n" +
" ,\n" +
" \n" +
" \'response\': function(response) \n" +
" \n" +
" \n" +
" ;\n" +
" );"
webView.evaluateJavaScript(s, completionHandler: (message,error) in
print(error ?? "No Error")
)
【讨论】：
感谢您的回答。我尝试了您的解决方案，但现在我得到了白屏。页面根本不加载 webView.evaluateJavaScript() 返回错误：Error Domain=WKErrorDomain Code=4 "A JavaScript exception occurred" UserInfo=WKJavaScriptExceptionLineNumber=2, WKJavaScriptExceptionMessage=ReferenceError: Can't find variable: $httpProvider, WKJavaScriptExceptionColumnNumber=15, WKJavaScriptExceptionSourceURL=about:blank, NSLocalizedDescription=A JavaScript exception occurred
@BadCodeDeveloper 您需要在加载 Angular 项目后执行此操作【参考方案2】：
您可以将代码更改为：
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool
if request.allHTTPHeaderFields?["SESSIONID"] == nil
var request: URLRequest = request
request.allHTTPHeaderFields?["SESSIONID"] = "your_session_id"
webView.loadRequest(request)
return false
return true
更新
正如我所见，解决您的问题的最佳方法是使用URLProtocol 拦截您的请求。
创建下一个类：
class MyURLProtocol: URLProtocol, NSURLConnectionDelegate, NSURLConnectionDataDelegate
static let protocolKey = "MyURLProtocolKey"
private var connection: NSURLConnection?
override class func canInit(with request: URLRequest) -> Bool
if let isCustom = URLProtocol.property(forKey: MyURLProtocol.protocolKey, in: request) as? Bool
return false
return true
override class func canonicalRequest(for request: URLRequest) -> URLRequest
//You can add headers here
var request = request
print("request: \(request.url?.absoluteString ?? " ")")
request.allHTTPHeaderFields?["SESSION_ID"] = "your_session_id"
return request
override class func requestIsCacheEquivalent(_ a: URLRequest, to b: URLRequest) -> Bool
return super.requestIsCacheEquivalent(a, to: b)
override func startLoading()
let newRequest: NSMutableURLRequest = self.request as! NSMutableURLRequest
URLProtocol.setProperty(true, forKey: MyURLProtocol.protocolKey, in: newRequest)
self.connection = NSURLConnection(request: newRequest as URLRequest, delegate: self, startImmediately: true)
override func stopLoading()
self.connection?.cancel()
self.connection = nil
//MARK: NSURLConnectionDataDelegate methods
func connection(_ connection: NSURLConnection, didReceive response: URLResponse)
self.client?.urlProtocol(self, didReceive: response, cacheStoragePolicy: .notAllowed)
func connection(_ connection: NSURLConnection, didReceive data: Data)
self.client?.urlProtocol(self, didLoad: data as Data)
func connectionDidFinishLoading(_ connection: NSURLConnection)
self.client?.urlProtocolDidFinishLoading(self)
func connection(_ connection: NSURLConnection, didFailWithError error: Error)
self.client?.urlProtocol(self, didFailWithError: error)
现在在您的AppDelegate
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool
URLProtocol.registerClass(MyURLProtocol.self)
return true
【讨论】：
感谢您的回答，但它的工作原理相同。一些请求在没有 cookie 的情况下执行 @BadCodeDeveloper 你能检查一下带cookie和不带cookie的btw请求有什么区别吗？ Angular 执行的请求没有 cookie。这就是我能看到的所有差异【参考方案3】：感谢您的帮助。通过创建具有特定域的 cookie 解决了问题：
final class FieldServiceViewController: UIViewController, DLHasHomeTitleView
private let fieldServiceEndPoint = Bundle.main.object(forInfoDictionaryKey: "FIELD_SERVICE_ENDPOINT") as! String
private var webView = UIWebView()
private var sessionID = String()
override func viewDidLoad()
super.viewDidLoad()
configureUI()
_ = JSONAPI.getSessionID().subscribe(onNext: [weak self] sessionID in
guard let `self` = self else return
self.sessionID = sessionID
let urlString = "https://\(self.fieldServiceEndPoint)"
let url = URL(string: urlString)
let request = URLRequest(url: url!)
let cookie = HTTPCookie(properties: [
.name: "JSESSIONID",
.value: sessionID,
.path: "/",
.domain: self.fieldServiceEndPoint])
HTTPCookieStorage.shared.setCookie(cookie!)
self.webView.loadRequest(request)
)
【讨论】：
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