/// <summary>
/// Send an HTTP request, with authorization. If the request fails due to an unauthorized exception,
/// this method will try to renew the access token in serviceInfo and try again.
/// </summary>
public static async Task <HttpResponseMessage> SendRequestAsync(
Office365ServiceInfo serviceInfo, HttpClient client, Func <HttpRequestMessage> requestCreator)
{
using (HttpRequestMessage request = requestCreator.Invoke())
{
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", serviceInfo.AccessToken);
request.Headers.UserAgent.Add(new ProductInfoHeaderValue(AppPrincipalId, String.Empty));
HttpResponseMessage response = await client.SendAsync(request);
// Check if the server responded with "Unauthorized". If so, it might be a real authorization issue, or
// it might be due to an expired access token. To be sure, renew the token and try one more time:
if (response.StatusCode == HttpStatusCode.Unauthorized)
{
Office365Cache.GetAccessToken(serviceInfo.ResourceId).RemoveFromCache();
serviceInfo.AccessToken = GetAccessTokenFromRefreshToken(serviceInfo.ResourceId);
// Create and send a new request:
using (HttpRequestMessage retryRequest = requestCreator.Invoke())
{
retryRequest.Headers.Authorization = new AuthenticationHeaderValue("Bearer", serviceInfo.AccessToken);
retryRequest.Headers.UserAgent.Add(new ProductInfoHeaderValue(AppPrincipalId, String.Empty));
response = await client.SendAsync(retryRequest);
}
}
// Return either the original response, or the response from the second attempt:
return(response);
}
}
public static async Task <UserProfile> GetUserProfileRequest()
{
UserProfile userProfile = null;
string errorMessage = string.Empty;
try
{
// Obtain information for communicating with the service:
Office365ServiceInfo serviceInfo = await Office365ServiceInfo.GetActiveDirectoryServiceInfoAsync();
if (!serviceInfo.HasValidAccessToken)
{
throw new Exception("Unable to get AAD ServiceInfo");
}
// Create a URL for retrieving the data:
string[] queryParameters = { "api-version=2013-11-08" };
string requestUrl = String.Format(CultureInfo.InvariantCulture,
"{0}/me?{1}",
serviceInfo.ApiEndpoint,
String.Join("&", queryParameters));
// Prepare the HTTP request:
using (HttpClient client = new HttpClient())
{
Func <HttpRequestMessage> requestCreator = () =>
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
request.Headers.Add("Accept", "application/json;odata=minimalmetadata");
return(request);
};
using (HttpResponseMessage response = await Office365Helper.SendRequestAsync(
serviceInfo, client, requestCreator))
{
// Read the response and deserialize the data:
string responseString = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode)
{
await Office365Helper.ShowErrorMessageAsync(serviceInfo, responseString);
return(userProfile);
}
userProfile = JsonConvert.DeserializeObject <UserProfile>(responseString);
}
}
}
catch (Exception ex)
{
errorMessage = ex.Message;
}
return(userProfile);
}
private static async Task <SampleModel.Exchange.CalendarEvent[]> GetCalendarEvents()
{
// Obtain information for communicating with the service:
Office365ServiceInfo serviceInfo = await Office365ServiceInfo.GetExchangeServiceInfoAsync();
if (!serviceInfo.HasValidAccessToken)
{
return(null);
}
// Create a URL for retrieving the data:
string[] queryParameters =
{
String.Format(CultureInfo.InvariantCulture, "$filter=End ge {0}Z", DateTime.UtcNow.ToString("s")),
"$top=10",
"$select=Subject,Start,End"
};
string requestUrl = String.Format(CultureInfo.InvariantCulture,
"{0}/Me/Calendar/Events?{1}",
serviceInfo.ApiEndpoint,
String.Join("&", queryParameters));
// Prepare the HTTP request:
using (HttpClient client = new HttpClient())
{
Func <HttpRequestMessage> requestCreator = () =>
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
request.Headers.Add("Accept", "application/json;odata=minimalmetadata");
return(request);
};
// Send the request using a helper method, which will add an authorization header to the request,
// and automatically retry with a new token if the existing one has expired.
using (HttpResponseMessage response = await Office365Helper.SendRequestAsync(
serviceInfo, client, requestCreator))
{
// Read the response and deserialize the data:
string responseString = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode)
{
await Office365Helper.ShowErrorMessageAsync(serviceInfo, responseString);
return(null);
}
var events = JObject.Parse(responseString)["value"].ToObject <SampleModel.Exchange.CalendarEvent[]>();
events = events.OrderBy(e => e.Start).ToArray();
return(events);
}
}
}
private static async Task <SampleModel.SharePoint.SharePointFile[]> GetSharePointFiles()
{
// Obtain information for communicating with the service:
Office365ServiceInfo serviceInfo = await Office365ServiceInfo.GetSharePointOneDriveServiceInfoAsync();
if (!serviceInfo.HasValidAccessToken)
{
return(null);
}
// Create a URL for retrieving the data:
string[] queryParameters =
{
"$orderby=Name",
"$expand=Author",
"$select=Name,Author,TimeLastModified"
};
string requestUrl = String.Format(CultureInfo.InvariantCulture,
"{0}/Folders('Shared%20with%20Everyone')/Files?{1}",
serviceInfo.ApiEndpoint,
String.Join("&", queryParameters));
// Prepare the HTTP request:
using (HttpClient client = new HttpClient())
{
Func <HttpRequestMessage> requestCreator = () =>
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
request.Headers.Add("Accept", "application/json;odata=verbose");
return(request);
};
// Send the request using a helper method, which will add an authorization header to the request,
// and automatically retry with a new token if the existing one has expired.
using (HttpResponseMessage response = await Office365Helper.SendRequestAsync(
serviceInfo, client, requestCreator))
{
// Read the response and deserialize the data:
string responseString = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode)
{
await Office365Helper.ShowErrorMessageAsync(serviceInfo, responseString);
return(null);
}
return(JObject.Parse(responseString)["d"]["results"].ToObject <SampleModel.SharePoint.SharePointFile[]>());
}
}
}
public static async Task SendMail(Message mailMessage)
{
// Obtain information for communicating with the service:
Office365ServiceInfo serviceInfo = await Office365ServiceInfo.GetExchangeServiceInfoAsync();
if (!serviceInfo.HasValidAccessToken)
{
await Office365Helper.ShowErrorMessageAsync("Unable to get Exchange ServiceInfo", string.Empty);
return;
}
HttpClient client = new HttpClient();
// Create a URL for retrieving the data:
string[] queryParameters = new string[]
{
"MessageDisposition=SendOnly"
};
string requestUrl = String.Format(CultureInfo.InvariantCulture,
"{0}/Me/Messages?{1}",
serviceInfo.ApiEndpoint,
String.Join("&", queryParameters));
// string postData = JsonConvert.SerializeObject(mailMessage);
string postData = CommonCode.Serialize(mailMessage);
Func <HttpRequestMessage> requestCreator = () =>
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, requestUrl);
request.Content = new StringContent(postData);
request.Headers.Add("Accept", "application/json;odata=minimalmetadata");
request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
return(request);
};
using (HttpResponseMessage response = await Office365Helper.SendRequestAsync(
serviceInfo, client, requestCreator))
{
// Read the response and deserialize the data:
string responseString = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode)
{
await Office365Helper.ShowErrorMessageAsync(serviceInfo, responseString);
}
// TODO maybe display a confirmation.
}
}
private static async Task <SampleModel.ActiveDirectory.UserProfile> GetActiveDirectoryProfile()
{
// Obtain information for communicating with the service:
Office365ServiceInfo serviceInfo = await Office365ServiceInfo.GetActiveDirectoryServiceInfoAsync();
if (!serviceInfo.HasValidAccessToken)
{
return(null);
}
// Create a URL for retrieving the data:
string[] queryParameters = { "api-version=2013-11-08" };
string requestUrl = String.Format(CultureInfo.InvariantCulture,
"{0}/{1}/users/{2}?{3}",
serviceInfo.ApiEndpoint,
WebUtility.UrlEncode(Office365Helper.TenantId),
WebUtility.UrlEncode(Office365Helper.UserId),
String.Join("&", queryParameters));
// Prepare the HTTP request:
using (HttpClient client = new HttpClient())
{
Func <HttpRequestMessage> requestCreator = () =>
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
request.Headers.Add("Accept", "application/json;odata=minimalmetadata");
return(request);
};
// Send the request using a helper method, which will add an authorization header to the request,
// and automatically retry with a new token if the existing one has expired.
using (HttpResponseMessage response = await Office365Helper.SendRequestAsync(
serviceInfo, client, requestCreator))
{
// Read the response and deserialize the data:
string responseString = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode)
{
await Office365Helper.ShowErrorMessageAsync(serviceInfo, responseString);
return(null);
}
return(JsonConvert.DeserializeObject <SampleModel.ActiveDirectory.UserProfile>(responseString));
}
}
}
public async Task <ActionResult> Index()
{
// Obtain information for communicating with the service:
Office365ServiceInfo serviceInfo = Office365ServiceInfo.GetExchangeServiceInfo();
if (!serviceInfo.HasValidAccessToken)
{
return(Redirect(serviceInfo.GetAuthorizationUrl(Request.Url)));
}
string requestUrl = String.Format(CultureInfo.InvariantCulture,
"{0}/Me/Inbox/Messages",
serviceInfo.ApiEndpoint
);
// Prepare the HTTP request:
using (HttpClient client = new HttpClient())
{
Func <HttpRequestMessage> requestCreator = () =>
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
request.Headers.Add("Accept", "application/json;odata.metadata=full");
return(request);
};
// Send the request using a helper method, which will add an authorization header to the request,
// and automatically retry with a new token if the existing one has expired.
using (HttpResponseMessage response = await Office365CommonController.SendRequestAsync(
serviceInfo, client, requestCreator))
{
// Read the response and deserialize the data:
string responseString = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode)
{
return(Office365CommonController.ShowErrorMessage(serviceInfo, responseString));
}
var messageContext = Newtonsoft.Json.JsonConvert.DeserializeObject <Message_odataContext>(responseString);
var messages = messageContext.Messages;
return(View(messages));
}
}
}
/// <summary>
/// A static method that routes errors to a single centralized error-handler.
/// This method will attempt to extract a human-readable error from the response string,
/// based on the the format of the data and the error handling scheme of the service.
/// </summary>
public static ActionResult ShowErrorMessage(Office365ServiceInfo serviceInfo, string responseString)
{
string message, errorDetails;
try
{
message = serviceInfo.ParseErrorMessage(responseString);
errorDetails = responseString;
}
catch (Exception e)
{
message = "An unexpected error has occurred.";
errorDetails = "Exception when parsing response string: " + e.ToString() +
"\n\nResponse string was " + responseString;
}
return(ShowErrorMessage(message, errorDetails));
}
public static async Task <CalendarEvents> CreateCalendarInstance()
{
CalendarEvents calendarEvents = new CalendarEvents();
// Obtain information for communicating with the service:
calendarEvents._serviceInfo = await Office365ServiceInfo.GetExchangeServiceInfoAsync();
if (!calendarEvents._serviceInfo.HasValidAccessToken)
{
await Office365Helper.ShowErrorMessageAsync("Unable to get Exchange ServiceInfo", string.Empty);
return(null);
}
calendarEvents._httpClient = new HttpClient();
return(calendarEvents);
}
public async Task <List <Session> > GetSessions()
{
List <Session> sessionList = new List <Session>();
string errorMessage = String.Empty;
try
{
// Obtain information for communicating with the service:
Office365ServiceInfo serviceInfo = await Office365ServiceInfo.GetSharePointServiceInfoAsync(
AppSettings.SharePointHostResourceId,
AppSettings.SharePointSessionListUri);
if (!serviceInfo.HasValidAccessToken)
{
throw new Exception("Unable to get SharePoint ServiceInfo");
}
// Create a URL for retrieving the data:
string[] queryParameters = new string[]
{
"select=title,start,end,description,code"
};
string requestUrl = String.Format(CultureInfo.InvariantCulture,
"{0}/items?{1}",
serviceInfo.ApiEndpoint,
String.Join("&", queryParameters));
// Prepare the HTTP request:
using (HttpClient client = new HttpClient())
{
Func <HttpRequestMessage> requestCreator = () =>
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, requestUrl);
request.Headers.Add("Accept", "application/json;odata=verbose");
return(request);
};
// Send the request using a helper method, which will add an authorization header to the request,
// and automatically retry with a new token if the existing one has expired.
using (HttpResponseMessage response = await Office365Helper.SendRequestAsync(
serviceInfo, client, requestCreator))
{
// Read the response and deserialize the data:
string responseString = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode)
{
await Office365Helper.ShowErrorMessageAsync(serviceInfo, responseString);
return(sessionList);
}
//sessionList = JObject.Parse(responseString)["d"]["results"].ToObject<List<Session>>();
JsonValue jsonResponse = JsonValue.Parse(responseString);
JsonObject d = jsonResponse.GetObject().GetNamedObject("d");
JsonArray sessionsArray = d.GetObject().GetNamedArray("results");
if (sessionsArray.Count > 0)
{
foreach (JsonValue o in sessionsArray)
{
Session s = CommonCode.Deserialize <Session>(o.Stringify());
sessionList.Add(s);
}
}
}
}
}
catch (Exception ex)
{
errorMessage = ex.Message;
}
if (!sessionList.Any())
{
await Office365Helper.ShowErrorMessageAsync("No Sessions Available.", errorMessage);
}
return(sessionList);
}
