protected virtual async void GetNextFriendsAsync (LoginOptions options, Page<IEnumerable<ServiceUser>> previous = null)
{
Page<IEnumerable<ServiceUser>> friendsPage;
try {
friendsPage = await Service.GetFriendsAsync (previous: previous, options: options);
} catch {
Console.WriteLine ("Failed to retrieve friends for {0}. (Maybe we're logged out?)", Service);
return;
}
var friends = friendsPage.Value;
if (TableView.Source == null) {
TableView.Source = new ServiceUserSource (friends);
} else {
((ServiceUserSource) TableView.Source).Add (friends);
}
TableView.ReloadData ();
if (friendsPage.HasNextPage) {
NSTimer.CreateScheduledTimer (1, () => {
GetNextFriendsAsync (options, friendsPage);
});
}
}
async void GetRootFolder (LoginOptions options)
{
tableView.Source = null;
tableView.ReloadData ();
try {
var profile = await Services.Dropbox.GetProfileAsync (options: options);
new UIAlertView ("Profile", profile.ToString (), null, "OK").Show ();
} catch (UriFormatException) {
new UIAlertView ("Specify your API keys", "Open Services.cs and specify your API keys for each provider.", null, "OK").Show ();
return;
} catch {
Console.WriteLine ("Failed to retrieve Dropbox profile. (Maybe we're logged out?)");
return;
}
DropboxManager.Metadata metadata;
try {
metadata = await Services.Dropbox.GetMetadataAsync ("/", includeContent: true, hash: null, options: options);
} catch {
Console.WriteLine ("Failed to retrieve Dropbox metadata");
return;
}
if (tableView.Source == null) {
var source = new MetadataSource (metadata.Contents) {
Controller = new WeakReference (this)
};
tableView.Source = source;
} else {
((MetadataSource)tableView.Source).Add (metadata.Contents);
}
tableView.ReloadData ();
}
public override Task<ServiceUser> GetProfileAsync (CancellationToken token = default (CancellationToken), LoginOptions options = default (LoginOptions))
{
return this.WithSession (
() => this.GetProfile (token),
options,
token
);
}
public Task<Metadata> GetMetadataAsync (string path, bool includeContent, string hash, CancellationToken token = default (CancellationToken), LoginOptions options = default (LoginOptions))
{
return this.WithSession (
() => this.GetMetadata (path, includeContent, hash, token),
options,
token
);
}
public Task<Metadata> LoadThumbnailAsync (string path, string size, string destPath, CancellationToken token = default (CancellationToken), LoginOptions options = default (LoginOptions))
{
return this.WithSession (
() => this.LoadThumbnail (path, size, destPath, token),
options,
token
);
}
public Task<Metadata> LoadFileAsync (string path, string destPath, Action<float> progress, CancellationToken token = default (CancellationToken), LoginOptions options = default (LoginOptions))
{
return this.WithSession (
() => this.LoadFile (path, destPath, progress, token),
options,
token
);
}
protected virtual async void GetProfileAndFriendsAsync (LoginOptions options)
{
TableView.Source = null;
TableView.ReloadData ();
try {
var profile = await Service.GetProfileAsync (options: options);
new UIAlertView ("Profile", profile.ToString (), null, "OK").Show ();
} catch (UriFormatException) {
new UIAlertView ("Specify your API keys", "Open Services.cs and specify your API keys for each provider.", null, "OK").Show ();
return;
} catch {
Console.WriteLine ("Couldn't retrieve profile for {0}. (Maybe we're logged out?)", Service);
return;
}
GetNextFriendsAsync (options);
}
public virtual Task <IDictionary <string, string> > GetTokenDataAsync(CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions))
{
return(this.WithSession(
() => this.GetTokenData(token),
options,
token
));
}
public Task<Session> GetSessionAsync (LoginOptions options, string [] scope = null)
{
return GetSessionAsync (token =>
_provider.Login (options, scope, token)
);
}
public abstract Task ShareAsync(Item item, CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions));
public abstract Task <Page <IEnumerable <ServiceUser> > > GetFriendsAsync(Page <IEnumerable <ServiceUser> > previous = null, CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions));
public override Task<Page<IEnumerable<ServiceUser>>> GetFriendsAsync (Page<IEnumerable<ServiceUser>> previous = null, CancellationToken token = default (CancellationToken), LoginOptions options = default (LoginOptions))
{
throw new NotImplementedException ();
}
public abstract Task <ServiceUser> GetProfileAsync(CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions));
internal static Task WithSession(this ServiceManager manager, Func <Task> call, LoginOptions options, CancellationToken token, string [] scope = null)
{
return(WithSession(manager, async() => { await call(); return true; }, scope, options, token));
}
public Task <Metadata> LoadThumbnailAsync(string path, string size, string destPath, CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions))
{
return(this.WithSession(
() => this.LoadThumbnail(path, size, destPath, token),
options,
token
));
}
public Task <Session> GetSessionAsync(LoginOptions options, string [] scope = null)
{
return(GetSessionAsync(token =>
_provider.Login(options, scope, token)
));
}
public Task <Metadata> LoadFileAsync(string path, string destPath, Action <float> progress, CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions))
{
return(this.WithSession(
() => this.LoadFile(path, destPath, progress, token),
options,
token
));
}
public override Task <ServiceUser> GetProfileAsync(CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions))
{
return(this.WithSession(
() => this.GetProfile(token),
options,
token
));
}
public override Task <Page <IEnumerable <ServiceUser> > > GetFriendsAsync(Page <IEnumerable <ServiceUser> > previous = null, CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions))
{
throw new NotImplementedException();
}
public override Task ShareAsync(Item item, CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions))
{
throw new NotImplementedException();
}
static async Task <T> WithSession <T> (ServiceManager manager, Func <Task <T> > call, string [] scope, LoginOptions options, CancellationToken token, bool allowReauthorizeOrLogout = true)
{
if (!SessionManager.NetworkMonitor.IsNetworkAvailable)
{
throw new OfflineException();
}
var session = await manager.GetSessionAsync(options, scope);
ApiException ex = null;
try {
return(await call());
} catch (ApiException aex) {
if (!allowReauthorizeOrLogout)
{
throw;
}
ex = aex;
} catch (Exception) {
throw;
}
bool tryReauthorize = (ex.Kind == ApiExceptionKind.Unauthorized);
if (tryReauthorize)
{
token.ThrowIfCancellationRequested();
if (await Reauthorize(manager, session))
{
token.ThrowIfCancellationRequested();
return(await call());
}
}
token.ThrowIfCancellationRequested();
bool tryLogout = (ex.Kind == ApiExceptionKind.Unauthorized || ex.Kind == ApiExceptionKind.Forbidden);
if (tryLogout)
{
token.ThrowIfCancellationRequested();
manager.CloseSession();
return(await WithSession(manager, call, scope, options, token, false));
}
throw ex;
}
public override Task ShareAsync (Item item, CancellationToken token = default(CancellationToken), LoginOptions options = default (LoginOptions))
{
throw new NotImplementedException ();
}
internal static Task <T> WithSession <T> (this ServiceManager manager, Func <Task <T> > call, LoginOptions options, CancellationToken token, string [] scope = null)
{
return(WithSession(manager, call, scope, options, token));
}
public Task <Metadata> GetMetadataAsync(string path, bool includeContent, string hash, CancellationToken token = default(CancellationToken), LoginOptions options = default(LoginOptions))
{
return(this.WithSession(
() => this.GetMetadata(path, includeContent, hash, token),
options,
token
));
}
