ios - 我需要帮助将代码移植到 Alamofire 5.0
问题描述
我想快速实现 OAuth2。我听说过 Alamofire,所以我在网上搜索了一些实现。
最后,我在 Stackoverflow 上找到了一篇文章,其中有一段代码:Understanding AlamoFire OAuth Example
class OAuth2Handler: RequestAdapter, RequestRetrier {
private typealias RefreshCompletion = (_ succeeded: Bool, _ accessToken: String?, _ refreshToken: String?) -> Void
private let sessionManager: SessionManager = {
let configuration = URLSessionConfiguration.default
configuration.httpAdditionalHeaders = SessionManager.defaultHTTPHeaders
return SessionManager(configuration: configuration)
}()
private let lock = NSLock()
private var clientID: String
private var baseURLString: String
private var accessToken: String
private var refreshToken: String
private var isRefreshing = false
private var requestsToRetry: [RequestRetryCompletion] = []
// MARK: - Initialization
public init(clientID: String, baseURLString: String, accessToken: String, refreshToken: String) {
self.clientID = clientID
self.baseURLString = baseURLString
self.accessToken = accessToken
self.refreshToken = refreshToken
}
// MARK: - RequestAdapter
func adapt(_ urlRequest: URLRequest) throws -> URLRequest {
if let urlString = urlRequest.url?.absoluteString, urlString.hasPrefix(baseURLString) {
var urlRequest = urlRequest
urlRequest.setValue("Bearer " + accessToken, forHTTPHeaderField: "Authorization")
return urlRequest
}
return urlRequest
}
// MARK: - RequestRetrier
func should(_ manager: SessionManager, retry request: Request, with error: Error, completion: @escaping RequestRetryCompletion) {
lock.lock() ; defer { lock.unlock() }
if let response = request.task?.response as? HTTPURLResponse, response.statusCode == 401 {
requestsToRetry.append(completion)
if !isRefreshing {
refreshTokens { [weak self] succeeded, accessToken, refreshToken in
guard let strongSelf = self else { return }
strongSelf.lock.lock() ; defer { strongSelf.lock.unlock() }
if let accessToken = accessToken, let refreshToken = refreshToken {
strongSelf.accessToken = accessToken
strongSelf.refreshToken = refreshToken
}
strongSelf.requestsToRetry.forEach { $0(succeeded, 0.0) }
strongSelf.requestsToRetry.removeAll()
}
}
} else {
completion(false, 0.0)
}
}
// MARK: - Private - Refresh Tokens
private func refreshTokens(completion: @escaping RefreshCompletion) {
guard !isRefreshing else { return }
isRefreshing = true
let urlString = "\(baseURLString)/oauth2/token"
let parameters: [String: Any] = [
"access_token": accessToken,
"refresh_token": refreshToken,
"client_id": clientID,
"grant_type": "refresh_token"
]
sessionManager.request(urlString, method: .post, parameters: parameters, encoding: JSONEncoding.default)
.responseJSON { [weak self] response in
guard let strongSelf = self else { return }
if
let json = response.result.value as? [String: Any],
let accessToken = json["access_token"] as? String,
let refreshToken = json["refresh_token"] as? String
{
completion(true, accessToken, refreshToken)
} else {
completion(false, nil, nil)
}
strongSelf.isRefreshing = false
}
}
}
问题是它已经被 Alamofire 4 编码,所以它不会再编译最新版本的 Alamofire 有人可以帮我将它移植到 AlamoFire 5
提前致谢
解决方案
实际上我已经下载了 Alamofire 4.9.1,它就像一个魅力
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