/// <summary>
/// Performs the app launch flow for the current request
/// </summary>
/// <param name="args">An <see cref="AppLauncherFunctionArgs"/> instance specifying the location of the client configuration in Azure storage.</param>
/// <returns>If launch succeeds the response is a 302 redirect back to the SharePoint site's home page.</returns>
public HttpResponseMessage Execute(AppLauncherFunctionArgs args)
{
try
{
_clientClientConfiguration = GetConfiguration(ClientId, args.StorageAccount, args.StorageAccountKey);
var spContextToken = TokenHelper.ReadAndValidateContextToken(ContextToken, _requestAuthority, ClientId,
_clientClientConfiguration.AcsClientConfig.ClientSecret);
var spHostUri = new Uri(SPWebUrl);
var accessToken = TokenHelper.GetACSAccessTokens(spContextToken, spHostUri.Authority,
_clientClientConfiguration.ClientId,
_clientClientConfiguration.AcsClientConfig.ClientSecret);
var ctx = ConnectToSPWeb(accessToken);
var securityTokens = new SecurityTokens()
{
ClientId = ClientId,
AccessToken = accessToken.AccessToken,
AccessTokenExpires = accessToken.ExpiresOn,
AppWebUrl = SPWebUrl,
Realm = spContextToken.Realm,
RefreshToken = spContextToken.RefreshToken
};
var encodedCacheKey = TokenHelper.Base64UrlEncode(spContextToken.CacheKey);
Log($"Storing tokens for {ClientId}/{encodedCacheKey}");
StoreSecurityTokens(securityTokens, encodedCacheKey, args.StorageAccount, args.StorageAccountKey);
Log($"Ensuring web properties for {ctx.Web.Url}");
EnsureBaseConfiguration(encodedCacheKey);
Log($"Sending app launch event for {ctx.Web.Url}");
SendQueueMessage(new QueuedAppLaunchEvent()
{
ClientId = ClientId,
AppWebUrl = ctx.Web.Url,
UserAccessToken = securityTokens.AccessToken,
AppAccessToken = GetACSAccessTokens(ClientId, encodedCacheKey, true),
RetryCount = 5
});
_response.StatusCode = HttpStatusCode.Moved;
// TODO: add Doug worthy validation on SPHostUrl, whatever that means
_response.Headers.Location = new Uri($"{ctx.Web.Url}?cId={ClientId}&cKey={encodedCacheKey}&SPHostUrl={_queryParams["SPHostUrl"]}");
return(_response);
}
catch (Exception ex)
{
_response.StatusCode = HttpStatusCode.OK;
_response.Content = new StringContent(GetErrorPage(ex.ToString()));
_response.Content.Headers.ContentType = new MediaTypeHeaderValue("text/html");
return(_response);
}
}
public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "AppLaunch")] HttpRequestMessage req, TraceWriter log)
{
Log(log, $"C# HTTP trigger function processed a request! RequestUri={req.RequestUri}");
var func = new AppLaunchHandler(req);
func.FunctionNotify += (sender, args) => Log(log, args.Message);
var appLauncherFunctionArgs = new AppLauncherFunctionArgs
{
StorageAccount = ConfigurationManager.AppSettings["ConfigurationStorageAccount"],
StorageAccountKey = ConfigurationManager.AppSettings["ConfigurationStorageAccountKey"]
};
return(await Task.Run(() => func.Execute(appLauncherFunctionArgs)));
}
public static Task <HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log)
{
Log(log, $"C# HTTP trigger function processed a request! RequestUri={req.RequestUri}");
var func = new AppLaunchHandler(req);
func.FunctionNotify += (sender, args) => Log(log, args.Message);
var appLauncherFunctionArgs = new AppLauncherFunctionArgs()
{
StorageAccount = ConfigurationManager.AppSettings["ConfigurationStorageAccount"],
StorageAccountKey = ConfigurationManager.AppSettings["ConfigurationStorageAccountKey"]
};
return(Task.FromResult(func.Execute(appLauncherFunctionArgs)));
}