EWS GetUserPhoto 从 Basic Auth 切换到 OAuth

如何解决EWS GetUserPhoto 从 Basic Auth 切换到 OAuth

我一直在使用基本身份验证来获取用户照片，如下所示。

string email = "[e-mail]";

HttpWebRequest request = WebRequest.Create(string.Format("https://outlook.office365.com/EWS/Exchange.asmx/s/GetUserPhoto?email={0}&size=HR648x648",email)) as HttpWebRequest;
request.Credentials = new NetworkCredential("SomeID","SomePwd");

using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
       Stream stream = response.GetResponseStream();
       using (MemoryStream ms = new MemoryStream())
       {
           string encodedPhoto = Convert.ToBase64String((ms.ToArray()));
       }
}

但由于 EWS 的基本身份验证将被停用，我正在尝试将 OAuth 2.0 用于同一请求。这是我迄今为止尝试过的。

var pcaOptions = new PublicClientApplicationOptions
{
     ClientId = ConfigurationManager.AppSettings["appId"],TenantId = ConfigurationManager.AppSettings["tenantId"]
};

var pca = PublicClientApplicationBuilder.CreateWithApplicationOptions(pcaOptions).Build();
var ewsScopes = new string[] { "https://outlook.office365.com/EWS.AccessAsUser.All" };
var authResult = await pca.AcquireTokenInteractive(ewsScopes).ExecuteAsync();

var ewsClient = new ExchangeService();

string email = "[e-mail]";
ewsClient.Url = new Uri(string.Format("https://outlook.office365.com/EWS/Exchange.asmx/s/GetUserPhoto?email={0}&size=HR648x648",email));
ewsClient.Credentials = new OAuthCredentials(authResult.AccessToken);

我如何才能从这里获取用户照片？任何帮助或信息将不胜感激。

解决方法

我建议您使用 Microsoft Graph API 来获取用户照片。参考，https://docs.microsoft.com/en-us/graph/api/profilephoto-get?view=graph-rest-1.0

使用 Graph Explorer 试试

https://developer.microsoft.com/en-us/graph/graph-explorer?request=me%2Fphoto%2F%24value&method=GET&version=v1.0&GraphUrl=https://graph.microsoft.com

Graph .Net SDK 入门 https://docs.microsoft.com/en-us/graph/sdks/sdks-overview

GraphServiceClient graphClient = new GraphServiceClient( authProvider );
var stream = await graphClient.Me.Photo.Content
            .Request()
            .GetAsync();

,

您不需要使用 EWS 托管 API，您只需修改现有代码以包含访问令牌，例如

ar

或者如果您确实想使用 EWS 托管 API，您可以使用类似

   string email = "[e-mail]";

   HttpWebRequest request = WebRequest.Create(string.Format("https://outlook.office365.com/EWS/Exchange.asmx/s/GetUserPhoto?email={0}&size=HR648x648",email)) as HttpWebRequest;
   request.Headers.Add("Authorization","Bearer " + authResult.AccessToken);

 using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
 {
    Stream stream = response.GetResponseStream();
    using (MemoryStream ms = new MemoryStream())
    {
        string encodedPhoto = Convert.ToBase64String((ms.ToArray()));
    }
 }