/// <summary>
/// This method is called by the JavaScript on the home page to activate the data robot
/// </summary>
/// <param name="driveId"></param>
/// <returns></returns>
public async Task <IHttpActionResult> ActivateRobot(string driveId)
{
// Make sure we still have a user signed in before we do anything (we'll need this to get auth tokens for MS Graph)
var signedInUserId = AuthHelper.GetUserId();
if (string.IsNullOrEmpty(signedInUserId))
{
return(Ok(new DataRobotSetup {
Success = false, Error = "User needs to sign in."
}));
}
// Setup a Microsoft Graph client for calls to the graph
var client = GetGraphClient();
// Configure the document library with the custom columns, if they don't already exist.
try
{
await ProvisionDocumentLibraryAsync(driveId, client);
}
catch (Exception ex)
{
return(Ok(new DataRobotSetup {
Success = false, Error = $"Unable to provision the selected document library: {ex.Message}"
}));
}
// Check to see if this user already has a subscription, so we avoid duplicate subscriptions (this sample only allows a user to hook up the data robot to a single document library)
var storedState = StoredSubscriptionState.FindUser(signedInUserId, AzureTableContext.Default.SyncStateTable);
var subscription = await CreateOrRefreshSubscriptionAsync(driveId, client, signedInUserId, storedState?.SubscriptionId);
var results = new DataRobotSetup {
SubscriptionId = subscription.Id
};
if (storedState == null)
{
storedState = StoredSubscriptionState.CreateNew(subscription.Id, driveId);
storedState.SignInUserId = signedInUserId;
}
// Catch up our delta link so we only start working on files modified starting now
var latestDeltaResponse = await client.Drives[driveId].Root.Delta("latest").Request().GetAsync();
storedState.LastDeltaToken = latestDeltaResponse.AdditionalData["@odata.deltaLink"] as string;
// Once we have a subscription, then we need to store that information into our Azure Table
storedState.Insert(AzureTableContext.Default.SyncStateTable);
results.Success = true;
results.ExpirationDateTime = subscription.ExpirationDateTime;
return(Ok(results));
}
public async Task <IHttpActionResult> ActivateRobot()
{
// Setup a Microsoft Graph client for calls to the graph
string graphBaseUrl = SettingsHelper.MicrosoftGraphBaseUrl;
GraphServiceClient client = new GraphServiceClient(new DelegateAuthenticationProvider(async(req) =>
{
// Get a fresh auth token
var authToken = await AuthHelper.GetUserAccessTokenSilentAsync(graphBaseUrl);
req.Headers.TryAddWithoutValidation("Authorization", $"Bearer {authToken.AccessToken}");
}));
// Get an access token and signedInUserId
AuthTokens tokens = null;
try
{
tokens = await AuthHelper.GetUserAccessTokenSilentAsync(graphBaseUrl);
}
catch (Exception ex)
{
return(Ok(new DataRobotSetup {
Success = false, Error = ex.Message
}));
}
// Check to see if this user is already wired up, so we avoid duplicate subscriptions
var robotSubscription = StoredSubscriptionState.FindUser(tokens.SignInUserId, AzureTableContext.Default.SyncStateTable);
var notificationSubscription = new Subscription()
{
ChangeType = "updated",
NotificationUrl = SettingsHelper.NotificationUrl,
Resource = "/me/drive/root",
ExpirationDateTime = DateTime.UtcNow.AddDays(3),
ClientState = "SecretClientState"
};
Subscription createdSubscription = null;
if (null != robotSubscription)
{
// See if our existing subscription can be extended to today + 3 days
try
{
createdSubscription = await client.Subscriptions[robotSubscription.SubscriptionId].Request().UpdateAsync(notificationSubscription);
}
catch { }
}
if (null == createdSubscription)
{
// No existing subscription or we failed to update the existing subscription, so create a new one
createdSubscription = await client.Subscriptions.Request().AddAsync(notificationSubscription);
}
var results = new DataRobotSetup()
{
SubscriptionId = createdSubscription.Id
};
if (robotSubscription == null)
{
robotSubscription = StoredSubscriptionState.CreateNew(createdSubscription.Id);
robotSubscription.SignInUserId = tokens.SignInUserId;
}
// Get the latest delta URL
var latestDeltaResponse = await client.Me.Drive.Root.Delta("latest").Request().GetAsync();
robotSubscription.LastDeltaToken = latestDeltaResponse.AdditionalData["@odata.deltaLink"] as string;
// Once we have a subscription, then we need to store that information into our Azure Table
robotSubscription.Insert(AzureTableContext.Default.SyncStateTable);
results.Success = true;
results.ExpirationDateTime = createdSubscription.ExpirationDateTime;
return(Ok(results));
}
