/// <summary>
/// Creates an instance of this class. One instance is maintained per service principal.
/// </summary>
/// <param name="tenantId">tenantId of the tenant</param>
/// <param name="appId">appId of service principal instance</param>
/// <param name="key">key of service principal</param>
/// <returns>RmsContentPublisher instance</returns>
public static RmsContentPublisher Create(string tenantId, string appId, string key)
{
ServicePrincipalTuple servicePrincipalTuple;
servicePrincipalTuple.AppId = appId;
servicePrincipalTuple.TenantId = tenantId;
servicePrincipalTuple.Key = key;
//check if an instance exists in cache
lock (LockRmsContentPublisherInstances)
{
if (!RmsContentPublisherInstances.ContainsKey(servicePrincipalTuple))
{
RmsContentPublisherInstances.Add(servicePrincipalTuple, new RmsContentPublisher(servicePrincipalTuple.GetSymmetricKey()));
}
}
RmsContentPublisher rmsContentPublisher = RmsContentPublisherInstances[servicePrincipalTuple] as RmsContentPublisher;
return(rmsContentPublisher);
}
private void ProcessQueueMessage(object state)
{
CloudQueueMessage msg = state as CloudQueueMessage;
try
{
// Log and delete if this is a "poison" queue message (repeatedly processed
// and always causes an error that prevents processing from completing).
// Production applications should move the "poison" message to a "dead message"
// queue for analysis rather than deleting the message.
if (msg.DequeueCount > 5)
{
Trace.TraceError("Deleting poison message: message {0} Role Instance {1}.",
msg.ToString(), GetRoleInstance());
DataModel.StorageFactory.Instance.IpcAzureAppWorkerJobQueue.DeleteMessage(msg);
return;
}
RmsCommand rmsCommand = new RmsCommand(msg.AsString);
switch (rmsCommand.RmsOperationCommand)
{
case RmsCommand.Command.GetTemplate:
{
ServicePrincipalModel sp = ServicePrincipalModel.GetFromStorage(rmsCommand.Parameters.First <object>().ToString());
RMS.RmsContentPublisher rmsPublisher = RMS.RmsContentPublisher.Create(sp.TenantId, sp.AppId, sp.Key);
var templates = rmsPublisher.GetRmsTemplates();
List <TemplateModel> templateEntityList = new List <TemplateModel>();
foreach (var temp in templates)
{
TemplateModel templateEntity = new TemplateModel();
templateEntity.TenantId = sp.TenantId;
templateEntity.TemplateId = temp.TemplateId;
templateEntity.TemplateName = temp.Name;
templateEntity.TemplateDescription = temp.Description;
templateEntityList.Add(templateEntity);
}
TemplateModel.SaveToStorage(templateEntityList);
break;
}
case RmsCommand.Command.PublishTemplate:
{
PublishModel publishJob = PublishModel.GetFromStorage(rmsCommand.Parameters[0].ToString(), rmsCommand.Parameters[1].ToString());
ServicePrincipalModel sp = ServicePrincipalModel.GetFromStorage(rmsCommand.Parameters[0].ToString());
CloudBlockBlob originalFileBlob = DataModel.StorageFactory.Instance.IpcAzureAppFileBlobContainer.GetBlockBlobReference(publishJob.OriginalFileBlobRef);
Stream sinkStream = null;
string tempFilePath = null;
try
{
//if file length is less than 100,000 bytes, keep it in memory
if (publishJob.OriginalFileSizeInBytes < 100000)
{
sinkStream = new MemoryStream();
}
else
{
tempFilePath = Path.GetRandomFileName();
sinkStream = new FileStream(tempFilePath, FileMode.Create);
}
using (Stream sourceStream = originalFileBlob.OpenRead())
using (sinkStream)
{
RMS.RmsContent rmsContent = new RMS.RmsContent(sourceStream, sinkStream);
rmsContent.RmsTemplateId = publishJob.TemplateId;
rmsContent.OriginalFileNameWithExtension = publishJob.OriginalFileName;
RMS.RmsContentPublisher rmsContentPublisher = RMS.RmsContentPublisher.Create(sp.TenantId, sp.AppId, sp.Key);
rmsContentPublisher.PublishContent(rmsContent);
publishJob.PublishedFileName = rmsContent.PublishedFileNameWithExtension;
sinkStream.Flush();
sinkStream.Seek(0, SeekOrigin.Begin);
//published file is uploaded to blob storage.
//Note: This sample code doesn't manage lifetime of this original and published file blob
//Actual code must manage the lifetime as appropriate
CloudBlockBlob destFileBlob = DataModel.StorageFactory.Instance.IpcAzureAppFileBlobContainer.GetBlockBlobReference(publishJob.PublishedFileBlobRef);
using (CloudBlobStream blobStream = destFileBlob.OpenWrite())
{
int tempSize = 1024;
byte[] tempBuffer = new byte[tempSize];
while (true)
{
int readSize = sinkStream.Read(tempBuffer, 0, tempSize);
if (readSize <= 0)
{
break;
}
blobStream.Write(tempBuffer, 0, readSize);
}
blobStream.Flush();
}
}
publishJob.JState = PublishModel.JobState.Completed.ToString();
publishJob.SaveToStorage();
break;
}
finally
{
if (!string.IsNullOrWhiteSpace(tempFilePath) && File.Exists(tempFilePath))
{
File.Delete(tempFilePath);
}
}
}
}
//delete the message from the queue
DataModel.StorageFactory.Instance.IpcAzureAppWorkerJobQueue.DeleteMessage(msg);
}
catch (Exception ex)
{
Process p = Process.GetCurrentProcess();
string a = p.ProcessName;
string b = p.MainModule.FileName;
string err = ex.Message;
if (ex.InnerException != null)
{
err += " Inner Exception: " + ex.InnerException.Message;
}
if (msg != null)
{
err += " Last queue message retrieved: " + msg.AsString;
}
Trace.TraceError(err);
}
}
