问题
I develop iOS app with Slack integration using Swift 3.0. How I pass login process:
func loginToSlackWithSafariBrowser() {
let scope = "channels%3Awrite+users%3Aread"
let clientId = "...myClientId"
let redirect_uri = "myAppDeepLink://"
let authURL = NSURL(string: "https://slack.com/oauth/authorize?client_id=\(clientId)&scope=\(scope)&redirect_uri=\(redirect_uri)")
guard let url = authURL else { return }
UIApplication.shared.openURL(url as URL)
}
Then Safari app opens, I enter credential, tap "Authorize" and have alert like "Open in your app?" I tap yes and redirecting to my app, where I send next request with gained from Slack code:
//AppDelegate.swift
extension UIApplicationDelegate {
func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: AnyObject) -> Bool {
self.exchangeCodeInURL(codeURL: url as NSURL)
return true
}
func exchangeCodeInURL(codeURL : NSURL) {
let clientId = "...myClientId"
let clientSecret = "...myclientSecret"
if let code = codeURL.query {
let request = NSMutableURLRequest(url: NSURL(string: "https://slack.com/api/oauth.access?client_id=\(clientId)&client_secret=\(clientSecret)&code=\(code)") as! URL)
request.httpMethod = "GET"
request.setValue("application/json", forHTTPHeaderField: "Accept")
URLSession.shared.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
print(response)
guard let unwrappedData = data else {return}
do {
if let rootObject = try JSONSerialization.jsonObject(with: unwrappedData, options: []) as? NSDictionary {
//Save and handle the token
print(rootObject)
}
}
catch {
print(error)
}
}).resume()
}
}
}
Code worked in Xcode 8 beta, but when I updated to Xcode 8 functions in extension are not called after redirect from Slack website.
What is wrong? Is there a better way to pass Slack login process?
回答1:
You may need to parse code before sending it to the oauth.access GET. When I run this on XCode 8 and Swift 2.3, my code contains "code=Xxxx&state=".
I'm working on the same problem, and appreciated your question as it helped me get started with the authentication process.
回答2:
Ok, mistake is really stupid... Instead of
func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: AnyObject) -> Bool
which is deprecated
func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool
has to be implemented.
So this should be in your AppDelegate
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool { //don't miss to implement this!
return true
}
func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool{
self.exchangeCodeInURL(codeURL: url)
return true
}
func exchangeCodeInURL(codeURL : URL) {
let clientId = "...myClientId"
let clientSecret = "...myclientSecret"
if let code = codeURL.query {
guard let url = URL(string: "https://slack.com/api/oauth.access?client_id=\(clientId)&client_secret=\(clientSecret)&\(code)") else {return} //as code = "code=Xxxx&state=" you don't have to extract code from string, this query works good
let request = NSMutableURLRequest(url: url)
request.setValue("application/json", forHTTPHeaderField: "Accept")
request.httpMethod = "GET"
URLSession.shared.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
print(response)
guard let unwrappedData = data else {return}
do {
if let rootObject = try JSONSerialization.jsonObject(with: unwrappedData, options: []) as? NSDictionary {
//Save and handle the token
print(rootObject)
}
}
catch {
print(error)
}
}).resume()
}
}
来源：https://stackoverflow.com/questions/39536851/slack-login-doest-work-swift-3-0