所有iOS SDK示例均提供了用于访问邮件,日历,ODfB文件的工作代码,但没有一个示例显示如何访问SharePoint列表项.因此,我正在尝试在Swift中进行一个简单的REST调用,但始终出现以下错误：

[0](空)@“ error_description”：@“不支持的安全令牌.

这是我的应用程序启动时的部分代码：

var resourceID : String = "https://mytenant.sharepoint.com"

var authorityURL : String = "https://login.windows.net/common/"

var clientID : String = "xxd4200eb-7284-41be-a434-abb269b82f0f"

var redirectURI : NSURL = NSURL(string: "http://www.mycompanywebsite.com")!

override func viewDidLoad() {

super.viewDidLoad()

var defaults: NSUserDefaults = NSUserDefaults.standardUserDefaults()

var er : ADAuthenticationError? = nil

var authContext:ADAuthenticationContext = ADAuthenticationContext(authority: authorityURL, error: &er)

authContext.acquireTokenWithResource(resourceID, clientId: clientID, redirectUri: redirectURI) { (result: ADAuthenticationResult!) -> Void in

if (result.accessToken == nil) {

println("token nil")

} else {

defaults.setObject(result.accessToken, forKey: "accessTokenDefault")

defaults.synchronize()

println("accessToken: \(result.accessToken)")

}

}

}

然后,一旦获得令牌,便调用以下代码尝试http GET,但失败：

var resolver : MSODataDefaultDependencyResolver = MSODataDefaultDependencyResolver()

var credentials : MSODataOAuthCredentials = MSODataOAuthCredentials()

var defaults: NSUserDefaults = NSUserDefaults.standardUserDefaults()

credentials.addToken(defaults.objectForKey("accessTokenDefault") as! String)

var credentialsImpl : MSODataCredentialsImpl = MSODataCredentialsImpl()

credentialsImpl.setCredentials(credentials)

resolver.setCredentialsFactory(credentialsImpl)

//build API string to get a sample list info

let request = NSMutableURLRequest(URL: NSURL(string: "https://umaknow.sharepoint.com/_api/web?$select=Title")!)

request.HTTPMethod = "GET"

let token = defaults.stringForKey("accessTokenDefault")

request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")

request.setValue("application/json; odata=verbose", forHTTPHeaderField: "accept")

//make the call to the SharePoint REST API

NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue(), completionHandler:{ (response:NSURLResponse!, data: NSData!, error: NSError!) -> Void in

var error:NSError? = nil

let jsonResult: NSDictionary! = NSJSONSerialization.JSONObjectWithData(data, options:NSJSONReadingOptions.MutableContainers, error: &error) as? NSDictionary

if (jsonResult != nil) {

//parse the json into File objects in the table view

let results:NSArray = (jsonResult["d"] as! NSDictionary)["results"] as! NSArray

这就是失败并显示错误消息的地方.监视网络流量,以下是有关发生情况的更多详细信息：

这是我的要求(RAW)：

GET /_api/web?$select=Title HTTP/1.1

Host: mytenant.sharepoint.com

Connection: keep-alive

Proxy-Connection: keep-alive

Accept: application/json; odata=verbose

User-Agent: O365Demo/1 CFNetwork/711.3.18 Darwin/14.3.0

Accept-Language: en-us

Authorization: Bearer Optional("eyJ0eXAiOiJKV1QiLDJhbGciOiJSUzI1NiIsIng1dCI6Ik1uQ19WWmNBVGZNNXBPWWlKSE1iYTlnb0VLWSIsImtpZCI6Ik1uQ19WWmNBVGZNNXBPWWlKSE1iYTlnb0VLWSJ9.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.aAkaEIFuOeiI0ZRydzaOBTl5wyqLDYBHfvbSj6nZAk4jQKBZF6BhJsAAnhu9qj8oMR2gUdVr3vCNgzefvlZxcf3u0k6R8g4176M-bU3rAABri9DjyaZJ24jMs1u-kL0h5Ee8mvNXSI7BF7Qv9JoeHIiXLei_SXba1s8mhdwMaw9Se9tl8MbBFPLDDBLXUa4YgC_rYWO7G7rw3JEe3GmEV9NffZ7zklXxd55P8fxtbz0-KhI0wbRHIXN69wAuC0jiqhJ4FCCGzLvTuuUbirhURrhi4UizYpLWqqnr0I8zWAMvr8WUXCWtZhPkzOZ5teqbvBwp1UwYui42O6S0PfYKzQ")

Accept-Encoding: gzip, deflate

最后是网站的RAW回应

HTTP/1.1 401 Unauthorized

Server: Microsoft-IIS/8.5

x-ms-diagnostics: 3000006;reason="Token contains invalid signature.";category="invalid_client"

SPRequestGuid: 84c9139d-807c-2000-0e59-4caf75bd097f

request-id: 84c9139d-807c-2000-0e59-4caf75bd097f

SPRequestDuration: 19

SPIisLatency: 1

X-Powered-By: ASP.NET

MicrosoftSharePointTeamServices: 16.0.0.4107

X-Content-Type-Options: nosniff

X-MS-InvokeApp: 1; RequireReadOnly

P3P: CP="ALL IND DSP COR ADM CONo CUR CUSo IVAo IVDo PSA PSD TAI TELo OUR SAMo CNT COM INT NAV ONL PHY PRE PUR UNI"

WWW-Authenticate: Bearer realm="56fc9778-8aac-45d2-9305-b9171ffafa8c",client_id="00000003-0000-0ff1-ce00-000000000000",trusted_issuers="00000001-0000-0000-c000-000000000000@*,https://sts.windows.net/*/,00000003-0000-0ff1-ce00-000000000000@90140122-8516-11e1-8eff-49304924019b",authorization_uri="https://login.windows.net/common/oauth2/authorize"

Date: Thu, 25 Jun 2015 11:12:40 GMT

Content-Length: 51

{"error_description":"Unsupported security token."}

因此,我使用所提供的令牌的方式显然存在问题,但是由于我对OAuth2的了解非常有限且缺少示例,我迷失了方向.

任何帮助是极大的赞赏！