// Builds a FilesViewDisplayModel
// folderId: ID of the folder to get files and folders from. If null, gets from the root
// pageRequestUrl: Used for paging requests to get the next set of results
private async Task <IActionResult> GetViewForFolder(string folderId = null,
string pageRequestUrl = null)
{
var model = new FilesViewDisplayModel();
try
{
var graphClient = GetGraphClientForScopes(_filesScopes);
// Get selected folder
IDriveItemRequest folderRequest;
if (string.IsNullOrEmpty(folderId))
{
// Get the root
// GET /me/drive/root
folderRequest = graphClient.Me
.Drive
.Root
.Request();
}
else
{
// GET /me/drive/items/folderId
folderRequest = graphClient.Me
.Drive
.Items[folderId]
.Request();
}
// Send the request
model.SelectedFolder = await folderRequest
// Only select the fields used by the app
.Select(d => new
{
d.Id,
d.Name,
d.ParentReference
})
.GetAsync();
// Get files and folders
IDriveItemChildrenCollectionRequest itemRequest;
// Is this a page request?
if (!string.IsNullOrEmpty(pageRequestUrl))
{
// Instead of using the request builders,
// initialize the request directly from the supplied
// URL
itemRequest = new DriveItemChildrenCollectionRequest(
pageRequestUrl, graphClient, null);
}
else if (string.IsNullOrEmpty(folderId))
{
// No folder ID specified, so use /me/drive/root/children
// to get all items in the root of user's drive
// GET /me/drive/root/children
itemRequest = graphClient.Me
.Drive
.Root
.Children
.Request();
}
else
{
// Folder ID specified
// GET /me/drive/items/folderId/children
itemRequest = graphClient.Me
.Drive
.Items[folderId]
.Children
.Request();
}
if (string.IsNullOrEmpty(pageRequestUrl))
{
itemRequest = itemRequest
.Top(GraphConstants.PageSize)
// Only get the fields used by the view
.Select(d => new
{
d.File,
d.FileSystemInfo,
d.Folder,
d.Id,
d.LastModifiedBy,
d.Name,
d.ParentReference
})
.Expand("thumbnails");
}
// Get max PageSize number of results
var driveItemPage = await itemRequest
.GetAsync();
model.Files = new List <DriveItem>();
model.Folders = new List <DriveItem>();
foreach (var item in driveItemPage.CurrentPage)
{
if (item.Folder != null)
{
model.Folders.Add(item);
}
else if (item.File != null)
{
model.Files.Add(item);
}
}
model.NextPageUrl = driveItemPage.NextPageRequest?
.GetHttpRequestMessage().RequestUri.ToString();
return(View("Index", model));
}
catch (ServiceException ex)
{
InvokeAuthIfNeeded(ex);
return(RedirectToAction("Error", "Home")
.WithError($"Error getting files", ex.Error.Message));
}
}
public async Task <IActionResult> SharedWithMe(string pageUrl = null)
{
var model = new FilesViewDisplayModel();
var scopes = new[] { GraphConstants.FilesReadWriteAll };
try
{
var graphClient = GetGraphClientForScopes(scopes);
IDriveSharedWithMeRequest sharedItemsRequest;
// Is this a page request?
if (string.IsNullOrEmpty(pageUrl))
{
// Not a page request, use the Graph client
// to build the request
// GET /me/drive/sharedWithMe
sharedItemsRequest = graphClient.Me
.Drive
.SharedWithMe()
.Request();
}
else
{
// This is a page request, so instead of using
// the request builders, initialize the request directly
// from the URL
sharedItemsRequest = new DriveSharedWithMeRequest(
pageUrl, graphClient, null);
}
// Send the request
var sharedItemPage = await sharedItemsRequest.GetAsync();
// Results can include folders and/or files, so
// go through them and add them to the appropriate list
model.Files = new List <DriveItem>();
model.Folders = new List <DriveItem>();
foreach (var item in sharedItemPage.CurrentPage)
{
if (item.RemoteItem.Folder != null)
{
model.Folders.Add(item);
}
else if (item.RemoteItem.File != null)
{
model.Files.Add(item);
}
}
model.NextPageUrl = sharedItemPage.NextPageRequest?
.GetHttpRequestMessage().RequestUri.ToString();
return(View(model));
}
catch (ServiceException ex)
{
InvokeAuthIfNeeded(ex);
return(RedirectToAction("Error", "Home")
.WithError("Error getting shared items",
ex.Error.Message));
}
}