public async Task <AppSettings> GetAppSettings()
{
try
{
if (!Settings.HasAzureSiteName)
{
throw new InvalidOperationException("`Settings.AzureAppName` must have a value before getting or updating app settings");
}
NetworkIndicator.ToggleVisibility(true);
var response = await HttpClient.GetAsync(Routes.GetAppSettings);
var stringContent = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode || string.IsNullOrEmpty(stringContent))
{
throw new Exception($"Error getting app settings from server");
}
return(JsonConvert.DeserializeObject <AppSettings> (stringContent));
}
catch (Exception ex)
{
Log.Error(ex);
throw;
}
finally
{
NetworkIndicator.ToggleVisibility(false);
}
}
public async Task <bool> AddNewFileAsync(AvContent avContent, StorageToken storageToken)
{
try
{
Log.Debug(storageToken?.ToString());
var sasUri = new Uri(storageToken.SasUri);
var blockBlob = new CloudBlockBlob(sasUri);
blockBlob.Metadata [DocumentUpdatedMessage.DocumentIdKey] = avContent.Id;
blockBlob.Metadata [DocumentUpdatedMessage.CollectionIdKey] = typeof(AvContent).Name;
NetworkIndicator.ToggleVisibility(true);
await blockBlob.UploadFromFileAsync(avContent.LocalInboxPath);
Log.Debug($"Finished uploading new file.");
return(true);
}
catch (Exception ex)
{
Log.Error(ex);
return(false);
}
finally
{
NetworkIndicator.ToggleVisibility(false);
}
}
public async Task <StorageToken> GetStorageToken <T> (T content)
where T : Content
{
var collectionId = typeof(T).Name;
if (content?.HasId ?? false)
{
try
{
NetworkIndicator.ToggleVisibility(true);
var response = await HttpClient.GetAsync(Routes.StorageToken(collectionId, content.Id));
var stringContent = await response.Content.ReadAsStringAsync();
if (!response.IsSuccessStatusCode || string.IsNullOrEmpty(stringContent))
{
throw new Exception($"Error getting new storage token from server for {collectionId} with Id: {content.Id}");
}
return(JsonConvert.DeserializeObject <StorageToken> (stringContent));
}
catch (Exception ex)
{
Log.Error(ex);
throw;
}
finally
{
NetworkIndicator.ToggleVisibility(false);
}
}
return(null);
}
public async Task Publish <T> (T content, string notificationTitle = null, string notificationMessage = null, UserRoles?publishTo = null)
where T : Content
{
if (content?.HasId ?? false)
{
try
{
var updateMessage = new DocumentUpdatedMessage(content.Id, typeof(T).Name, publishTo ?? content.PublishedTo)
{
Title = notificationTitle,
Message = notificationMessage
};
Log.Debug(updateMessage.NotificationTags);
NetworkIndicator.ToggleVisibility(true);
var response = await HttpClient.PostAsync(Routes.PublishContent, new StringContent (JsonConvert.SerializeObject(updateMessage), Encoding.UTF8, Routes.Json));
if (!response.IsSuccessStatusCode)
{
throw new Exception($"Error posting document update message: {updateMessage}");
}
}
catch (Exception ex)
{
Log.Error(ex);
throw;
}
finally
{
NetworkIndicator.ToggleVisibility(false);
}
}
}
public async Task AuthenticateUser(string providerToken, string providerAuthCode)
{
try
{
if (string.IsNullOrEmpty(providerToken))
{
throw new ArgumentNullException(nameof(providerToken));
}
if (string.IsNullOrEmpty(providerAuthCode))
{
throw new ArgumentNullException(nameof(providerAuthCode));
}
ResetUser();
var auth = JObject.Parse($"{{'id_token':'{providerToken}','authorization_code':'{providerAuthCode}'}}").ToString();
NetworkIndicator.ToggleVisibility(true);
var authResponse = await HttpClient.PostAsync(Routes.LoginGoogle, new StringContent (auth, Encoding.UTF8, Routes.Json));
if (authResponse.IsSuccessStatusCode)
{
var azureUser = JsonConvert.DeserializeObject <AzureAppServiceUser> (await authResponse.Content.ReadAsStringAsync());
Keychain.SaveItemToKeychain(AzureAppServiceUser.AuthenticationHeader, "azure", azureUser.AuthenticationToken);
_httpClient = null;
var userConfigJson = await HttpClient.GetStringAsync(Routes.AuthenticateUser);
authUser = JsonConvert.DeserializeObject <AuthUserConfig> (userConfigJson);
authUser.SaveToKeychain(Keychain);
Log.Debug(authUser.ToString());
_user = null;
CurrentUserChanged?.Invoke(this, User);
}
else
{
Log.Error(auth);
Log.Error(authResponse?.ToString());
}
}
catch (Exception ex)
{
Log.Error(ex);
throw;
}
finally
{
NetworkIndicator.ToggleVisibility(false);
}
}
public async Task <string> GetContentToken <T> (bool refresh = false)
where T : Entity
{
const string errorToken = "{\"Message\":\"An error has occurred.\"}";
var collectionId = typeof(T).Name;
try
{
var resourceToken = Settings.GetContentToken <T> ();
if (refresh || string.IsNullOrEmpty(resourceToken) || resourceToken == errorToken)
{
Log.Info($"Getting new content token from server for {collectionId}");
NetworkIndicator.ToggleVisibility(true);
var response = await HttpClient.GetAsync(Routes.ContentToken(collectionId));
var stringContent = await response.Content.ReadAsStringAsync();
resourceToken = stringContent.Trim('"');
if (!response.IsSuccessStatusCode || resourceToken == errorToken)
{
throw new Exception($"Error getting new content token from server for {collectionId}");
}
Settings.SetContentToken <T> (resourceToken);
}
else
{
Log.Info($"Found existing content token for {collectionId}");
}
return(resourceToken);
}
catch (Exception ex)
{
Log.Error(ex);
throw;
}
finally
{
NetworkIndicator.ToggleVisibility(false);
}
}
async Task <List <T> > ExecuteWithRetry <T> (Func <Task <List <T> > > task)
where T : Entity
{
try
{
if (client == null)
{
await RefreshResourceToken <T> (false);
}
NetworkIndicator.ToggleVisibility(true);
return(await task());
}
catch (DocumentClientException dex)
{
Log.Debug(dex.Print());
switch (dex.StatusCode)
{
case HttpStatusCode.NotFound: return(null);
case HttpStatusCode.Forbidden:
await RefreshResourceToken <T> ();
return(await task());
default: throw;
}
}
catch (Exception ex)
{
Log.Error(ex);
throw;
}
finally
{
NetworkIndicator.ToggleVisibility(false);
}
}