/// <summary>
/// Processes a PutUserInfo request
/// </summary>
/// <remarks>
/// For full documentation on PutUserInfo, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/PutUserInfo.html
/// </remarks>
private async static Task<HttpResponseMessage> PutUserInfo(this HttpContext context, FileModel file)
{
// Set and save the UserInfo on the file
var stream = context.Request.InputStream;
var bytes = new byte[stream.Length];
await stream.ReadAsync(bytes, 0, (int)stream.Length);
file.UserInfo = System.Text.Encoding.UTF8.GetString(bytes);
// Update the file in DocumentDB
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success
return returnStatus(HttpStatusCode.OK, "Success");
}
/// <summary>
/// Forms the correct action url for the file and host
/// </summary>
public static string GetActionUrl(WopiAction action, FileModel file, string authority)
{
// Initialize the urlsrc
var urlsrc = action.urlsrc;
// Look through the action placeholders
var phCnt = 0;
foreach (var p in WopiUrlPlaceholders.Placeholders)
{
if (urlsrc.Contains(p))
{
// Replace the placeholder value accordingly
var ph = WopiUrlPlaceholders.GetPlaceholderValue(p);
if (!String.IsNullOrEmpty(ph))
{
urlsrc = urlsrc.Replace(p, ph + "&");
phCnt++;
}
else
urlsrc = urlsrc.Replace(p, ph);
}
}
// Add the WOPISrc to the end of the request
urlsrc += ((phCnt > 0) ? "" : "?") + String.Format("WOPISrc=https://{0}/wopi/files/{1}", authority, file.id.ToString());
return urlsrc;
}
/// <summary>
/// Processes a PutFile request
/// </summary>
/// <remarks>
/// For full documentation on PutFile, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/PutFile.html
/// </remarks>
private async static Task<HttpResponseMessage> PutFile(this HttpContext context, FileModel file)
{
// 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))
{
// If the file is 0 bytes, this is document creation
if (context.Request.InputStream.Length == 0)
{
// Update the file in blob storage
var bytes = new byte[context.Request.InputStream.Length];
context.Request.InputStream.Read(bytes, 0, bytes.Length);
file.Size = bytes.Length;
await AzureStorageUtil.UploadFile(file.id.ToString(), file.Container, bytes);
// Update version
file.Version++;
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
else
{
// File isn't locked...pass empty Lock in mismatch response
return context.returnLockMismatch(String.Empty, "File isn't locked");
}
}
else if (file.LockExpires != null && file.LockExpires < DateTime.Now)
{
// File lock expired, so clear it out
file.LockValue = null;
file.LockExpires = null;
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// File isn't locked...pass empty Lock in mismatch response
return context.returnLockMismatch(String.Empty, "File isn't locked");
}
else if (requestLock != file.LockValue)
{
// File lock mismatch...pass Lock in mismatch response
return context.returnLockMismatch(file.LockValue, "Lock mismatch");
}
else
{
// Update the file in blob storage
var bytes = new byte[context.Request.InputStream.Length];
context.Request.InputStream.Read(bytes, 0, bytes.Length);
file.Size = bytes.Length;
await AzureStorageUtil.UploadFile(file.id.ToString(), file.Container, bytes);
// Update version
file.Version++;
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
}
/// <summary>
/// Processes a RenameFile request
/// </summary>
/// <remarks>
/// For full documentation on RenameFile, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/RenameFile.html
/// </remarks>
private async static Task<HttpResponseMessage> RenameFile(this HttpContext context, FileModel file)
{
// Get the Lock value passed in on the request
string requestLock = context.Request.Headers[WopiRequestHeaders.LOCK];
// Make sure the X-WOPI-RequestedName header is included
if (context.Request.Headers[WopiRequestHeaders.REQUESTED_NAME] != null)
{
// Get the new file name
var newFileName = context.Request.Headers[WopiRequestHeaders.REQUESTED_NAME];
// Ensure the file isn't locked
if (String.IsNullOrEmpty(file.LockValue) ||
(file.LockExpires != null &&
file.LockExpires < DateTime.Now))
{
// Update the file with a LockValue and LockExpiration
file.LockValue = requestLock;
file.LockExpires = DateTime.Now.AddMinutes(30);
file.BaseFileName = newFileName;
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
else if (file.LockValue == requestLock)
{
// File lock matches existing lock, so we can change the name
file.LockExpires = DateTime.Now.AddMinutes(30);
file.BaseFileName = newFileName;
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success 200
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
return returnStatus(HttpStatusCode.OK, "Success");
}
else
{
// The file is locked by someone else...return mismatch
return context.returnLockMismatch(file.LockValue, String.Format("File locked by {0}", file.LockValue));
}
}
else
{
// X-WOPI-RequestedName header wasn't included
return returnStatus(HttpStatusCode.BadRequest, "X-WOPI-RequestedName header wasn't included in request");
}
}
/// <summary>
/// Processes a UnlockAndRelock request
/// </summary>
/// <remarks>
/// For full documentation on UnlockAndRelock, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/UnlockAndRelock.html
/// </remarks>
private async static Task<HttpResponseMessage> UnlockAndRelock(this HttpContext context, FileModel file)
{
// Get the Lock and OldLock values passed in on the request
string requestLock = context.Request.Headers[WopiRequestHeaders.LOCK];
string requestOldLock = context.Request.Headers[WopiRequestHeaders.OLD_LOCK];
// Ensure the file has a valid lock
if (String.IsNullOrEmpty(file.LockValue))
{
// File isn't locked...pass empty Lock in mismatch response
return context.returnLockMismatch(String.Empty, "File isn't locked");
}
else if (file.LockExpires != null && file.LockExpires < DateTime.Now)
{
// File lock expired, so clear it out
file.LockValue = null;
file.LockExpires = null;
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// File isn't locked...pass empty Lock in mismatch response
return context.returnLockMismatch(String.Empty, "File isn't locked");
}
else if (requestOldLock != file.LockValue)
{
// File lock mismatch...pass Lock in mismatch response
return context.returnLockMismatch(file.LockValue, "Lock mismatch");
}
else
{
// Update the file with a LockValue and LockExpiration
file.LockValue = requestLock;
file.LockExpires = DateTime.Now.AddMinutes(30);
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
}
/// <summary>
/// Processes a GetLock request
/// </summary>
/// <remarks>
/// For full documentation on GetLock, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/GetLock.html
/// </remarks>
private async static Task<HttpResponseMessage> GetLock(this HttpContext context, FileModel file)
{
// Check for valid lock on file
if (String.IsNullOrEmpty(file.LockValue))
{
// File is not locked...return empty X-WOPI-Lock header
context.Response.Headers[WopiResponseHeaders.LOCK] = String.Empty;
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
else if (file.LockExpires != null && file.LockExpires < DateTime.Now)
{
// File lock expired, so clear it out
file.LockValue = null;
file.LockExpires = null;
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// File is not locked...return empty X-WOPI-Lock header
context.Response.Headers[WopiResponseHeaders.LOCK] = String.Empty;
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
else
{
// File has a valid lock, so we need to return it
context.Response.Headers[WopiResponseHeaders.LOCK] = file.LockValue;
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
}
/// <summary>
/// Processes a Lock request
/// </summary>
/// <remarks>
/// For full documentation on Lock, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/Lock.html
/// </remarks>
private async static Task<HttpResponseMessage> Lock(this HttpContext context, FileModel file)
{
// Get the Lock value passed in on the request
string requestLock = context.Request.Headers[WopiRequestHeaders.LOCK];
// Ensure the file isn't already locked or expired
if (String.IsNullOrEmpty(file.LockValue) ||
(file.LockExpires != null &&
file.LockExpires < DateTime.Now))
{
// Update the file with a LockValue and LockExpiration
file.LockValue = requestLock;
file.LockExpires = DateTime.Now.AddMinutes(30);
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success 200
return returnStatus(HttpStatusCode.OK, "Success");
}
else if (file.LockValue == requestLock)
{
// File lock matches existing lock, so refresh lock by extending expiration
file.LockExpires = DateTime.Now.AddMinutes(30);
await DocumentDBRepository<FileModel>.UpdateItemAsync("Files", file.id.ToString(), (FileModel)file);
// Return success 200
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);
return returnStatus(HttpStatusCode.OK, "Success");
}
else
{
// The file is locked by someone else...return mismatch
return context.returnLockMismatch(file.LockValue, String.Format("File already locked by {0}", file.LockValue));
}
}
/// <summary>
/// Processes a GetFile request
/// </summary>
/// <remarks>
/// For full documentation on GetFile, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/GetFile.html
/// </remarks>
private async static Task<HttpResponseMessage> GetFile(this HttpContext context, FileModel file)
{
// Get the file from blob storage
var bytes = await AzureStorageUtil.GetFile(file.id.ToString(), file.Container);
// Write the response and return success 200
var response = returnStatus(HttpStatusCode.OK, "Success");
response.Content = new ByteArrayContent(bytes);
return response;
}
/// <summary>
/// Processes a CheckFileInfo request
/// </summary>
/// <remarks>
/// For full documentation on CheckFileInfo, see https://wopi.readthedocs.org/projects/wopirest/en/latest/files/CheckFileInfo.html
/// </remarks>
private static HttpResponseMessage CheckFileInfo(this HttpContext context, FileModel file)
{
// Serialize the response object
string jsonString = JsonConvert.SerializeObject(file);
// Write the response and return a success 200
var response = returnStatus(HttpStatusCode.OK, "Success");
response.Content = new StringContent(jsonString);
return response;
}
