/// <summary>
/// Processes a RefreshLock request
/// </summary>
/// <remarks>
/// For full documentation on RefreshLock, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/RefreshLock.html
/// </remarks>
private static HttpResponseMessage RefreshLock(this HttpContext context, File file, Token AccessToken)
{
// Get the Lock value passed in on the request
string requestLock = context.Request.Headers[WopiRequestHeaders.LOCK];
// Ensure the file has a valid lock
if (String.IsNullOrEmpty(file.LockValue))
{
// File isn't locked...pass empty Lock in mismatch response
//ServerUtil.Log("File isn't locked");
return(context.returnLockMismatch(String.Empty, "File isn't locked"));
}
else if (file.LockExpires != null && file.LockExpires < DateTime.UtcNow)
{
// File lock expired, so clear it out
//file.LockValue = null;
//file.LockExpires = null;
////await DatabaseUtil<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
//DatabaseUtil<DetailedFileModel>.UpdateItem("Files", file);
file.UnLock();
// File isn't locked...pass empty Lock in mismatch response
//ServerUtil.Log("File isn't locked");
return(context.returnLockMismatch(String.Empty, "File isn't locked"));
}
else if (requestLock != file.LockValue)
{
// File lock mismatch...pass Lock in mismatch response
ServerUtil.Log("Lock mismatch");
return(context.returnLockMismatch(file.LockValue, "Lock mismatch"));
}
else
{
// Extend the expiration
//file.LockExpires = DateTime.Now.AddMinutes(30);
////await DatabaseUtil<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
//DatabaseUtil<FileModel>.UpdateItem("Files", (FileModel)file);
file.Lock(requestLock);
// Return success 200
return(returnStatus(HttpStatusCode.OK, "Success"));
}
}
/// <summary>
/// Processes a WOPI request using the HttpContext of the APIController
/// </summary>
public async static Task <HttpResponseMessage> ProcessWopiRequest(this HttpContext context)
{
// Parse the request
var request = ParseRequest(context.Request);
HttpResponseMessage response = null;
try
{
// Lookup the file in the database
var itemId = new Guid(request.Id);
var file = File.Get(itemId); //DatabaseUtil<DetailedFileModel>.GetItem("Files", i => i.id == itemId);
// Check for null file
if (file == null)
{
response = returnStatus(HttpStatusCode.NotFound, "File Unknown/User Unauthorized");
}
else
{
// Validate WOPI Proof (ie - ensure request came from Office Online)
if (true) //(await WopiUtil.ValidateWopiProof(context))
{
// Get discovery information
var fileExt = file.BaseFileName.Substring(file.BaseFileName.LastIndexOf('.') + 1).ToLower();
var actions = await WopiUtil.GetDiscoveryInfo();
// Augments the file with additional properties CloseUrl, HostViewUrl, HostEditUrl
file.CloseUrl = String.Format("http://{0}", context.Request.Url.Authority);
var view = actions.FirstOrDefault(i => i.ext == fileExt && i.name == "view");
if (view != null)
{
file.HostViewUrl = WopiUtil.GetActionUrl(view, file, context.Request.Url.Authority);
}
var edit = actions.FirstOrDefault(i => i.ext == fileExt && i.name == "edit");
if (edit != null)
{
file.HostEditUrl = WopiUtil.GetActionUrl(edit, file, context.Request.Url.Authority);
}
// Get the user from the token (token is already validated)
file.UserId = request.AccessToken.User; //WopiSecurity.GetUserFromToken(request.AccessToken);
// Call the appropriate handler for the WOPI request we received
ServerUtil.Log(request.RequestType.ToString());
switch (request.RequestType)
{
case WopiRequestType.CheckFileInfo:
response = context.CheckFileInfo(file, request.AccessToken);
break;
case WopiRequestType.GetFile:
response = context.GetFile(file, request.AccessToken);
break;
case WopiRequestType.Lock:
response = context.Lock(file, request.AccessToken);
break;
case WopiRequestType.GetLock:
response = context.GetLock(file, request.AccessToken);
break;
case WopiRequestType.RefreshLock:
response = context.RefreshLock(file, request.AccessToken);
break;
case WopiRequestType.Unlock:
response = context.Unlock(file, request.AccessToken);
break;
case WopiRequestType.UnlockAndRelock:
response = context.UnlockAndRelock(file, request.AccessToken);
break;
case WopiRequestType.PutFile:
response = context.PutFile(file, request.AccessToken);
break;
case WopiRequestType.PutRelativeFile:
response = await context.PutRelativeFile(file, actions, request.AccessToken);
break;
case WopiRequestType.RenameFile:
response = context.RenameFile(file, request.AccessToken);
break;
case WopiRequestType.PutUserInfo:
response = await context.PutUserInfo(file, request.AccessToken);
break;
default:
response = returnStatus(HttpStatusCode.NotImplemented, "Unsupported");
break;
}
}
//else
//{
// // Proof validation failed...return 500
// ServerUtil.Log("Proof validation failed!");
// response = returnStatus(HttpStatusCode.InternalServerError, "Server Error");
//}
}
}
catch (Exception ex)
{
// An unknown exception occurred...return 500
ServerUtil.LogException(ex);
response = returnStatus(HttpStatusCode.InternalServerError, "Server Error");
}
return(response);
}