public bool Connect(string server, int port, string vm_uuid, string username, string password, int width, int height, bool show_border)
{
// reinitiailize the VNC Control
initSubControl(width, height, true, show_border);
m_vncClient.ErrorOccurred += ConnectionErrorHandler;
try {
// Create a new XenAPI session
m_session = new Session(Session.STANDARD_TIMEOUT, server, port);
// Authenticate with username and password passed in.
// The third parameter tells the server which API version we support.
m_session.login_with_password(username, password, API_Version.LATEST);
m_vncPassword = password.ToCharArray();
// Find the VM in question
XenRef <VM> vmRef = VM.get_by_uuid(m_session, vm_uuid);
m_sourceVM = VM.get_record(m_session, vmRef);
// Check if this VM is PV or HVM
m_sourceIsPV = (m_sourceVM.PV_bootloader.Length != 0); /* No PV bootloader specified implies HVM */
// Get the console that uses the RFB (VNC) protocol
List <XenRef <XenAPI.Console> > consoleRefs = VM.get_consoles(m_session, vmRef);
XenAPI.Console console = null;
foreach (XenRef <XenAPI.Console> consoleRef in consoleRefs)
{
console = XenAPI.Console.get_record(m_session, consoleRef);
if (console.protocol == console_protocol.rfb)
{
break;
}
console = null;
}
if (console != null)
{
//ThreadPool.QueueUserWorkItem(new WaitCallback(ConnectToConsole), new KeyValuePair<VNCGraphicsClient, XenAPI.Console>(m_vncClient, console));
ConnectHostedConsole(m_vncClient, console, m_session.uuid);
}
// done with this session, log it out
m_session.logout();
}
catch (Exception exn)
{
// call the expcetion handler directly
this.ConnectionErrorHandler(this, exn);
}
return(m_vncClient.Connected);
}
public void runUpload(System.Threading.CancellationToken serviceStop)
{
DateTime startTime = DateTime.UtcNow;
string uploadToken = "";
Session session = new Session(connection.Hostname, 80);
session.APIVersion = API_Version.LATEST;
try
{
session.login_with_password(connection.Username, connection.Password);
connection.LoadCache(session);
var pool = Helpers.GetPoolOfOne(connection);
if (pool != null)
{
try
{
string opaqueref = Secret.get_by_uuid(session, pool.HealthCheckSettings.UploadTokenSecretUuid);
uploadToken = Secret.get_value(session, opaqueref);
}
catch (Exception e)
{
log.Error("Exception getting the upload token from the xapi secret", e);
uploadToken = null;
}
}
if (string.IsNullOrEmpty(uploadToken))
{
if (session != null)
session.logout();
session = null;
log.ErrorFormat("The upload token is not retrieved for {0}", connection.Hostname);
updateHealthCheckSettings(false, startTime);
server.task = null;
ServerListHelper.instance.UpdateServerInfo(server);
return;
}
}
catch (Exception e)
{
if (session != null)
session.logout();
session = null;
log.Error(e, e);
updateHealthCheckSettings(false, startTime);
server.task = null;
ServerListHelper.instance.UpdateServerInfo(server);
return;
}
try
{
CancellationTokenSource cts = new CancellationTokenSource();
Func<string> upload = delegate()
{
try
{
return bundleUpload(connection, session, uploadToken, cts.Token);
}
catch (OperationCanceledException)
{
return "";
}
};
System.Threading.Tasks.Task<string> task = new System.Threading.Tasks.Task<string>(upload);
task.Start();
// Check if the task runs to completion before timeout.
for (int i = 0; i < TIMEOUT; i += INTERVAL)
{
// If the task finishes, set HealthCheckSettings accordingly.
if (task.IsCompleted || task.IsCanceled || task.IsFaulted)
{
if (task.Status == System.Threading.Tasks.TaskStatus.RanToCompletion)
{
string upload_uuid = task.Result;
if (!string.IsNullOrEmpty(upload_uuid))
updateHealthCheckSettings(true, startTime, upload_uuid);
else
updateHealthCheckSettings(false, startTime);
}
else
updateHealthCheckSettings(false, startTime);
server.task = null;
ServerListHelper.instance.UpdateServerInfo(server);
return;
}
// If the main thread (XenServerHealthCheckService) stops,
// set the cancel token to notify the working task to return.
if (serviceStop.IsCancellationRequested)
{
cts.Cancel();
updateHealthCheckSettings(false, startTime);
task.Wait();
server.task = null;
ServerListHelper.instance.UpdateServerInfo(server);
return;
}
System.Threading.Thread.Sleep(INTERVAL);
}
// The task has run for 24h, cancel the task and mark it as a failure upload.
cts.Cancel();
updateHealthCheckSettings(false, startTime);
task.Wait();
server.task = null;
ServerListHelper.instance.UpdateServerInfo(server);
return;
}
catch (Exception e)
{
if (session != null)
session.logout();
session = null;
log.Error(e, e);
server.task = null;
ServerListHelper.instance.UpdateServerInfo(server);
}
}
public string bundleUpload(IXenConnection connection, Session session, string uploadToken, System.Threading.CancellationToken cancel)
{
// Collect the server status report and generate zip file to upload.
XenServerHealthCheckBugTool bugTool = new XenServerHealthCheckBugTool();
try
{
bugTool.RunBugtool(connection, session);
}
catch (Exception e)
{
if (session != null)
session.logout();
session = null;
log.Error(e, e);
return "";
}
string bundleToUpload = bugTool.outputFile;
if(string.IsNullOrEmpty(bundleToUpload) || !File.Exists(bundleToUpload))
{
log.ErrorFormat("Server Status Report is NOT collected");
return "";
}
// Upload the zip file to CIS uploading server.
string upload_url = Registry.HealthCheckUploadDomainName;
log.InfoFormat("Upload report to {0}", upload_url);
XenServerHealthCheckUpload upload = new XenServerHealthCheckUpload(uploadToken, VERBOSITY_LEVEL, upload_url, connection);
string upload_uuid = "";
try
{
upload_uuid = upload.UploadZip(bundleToUpload, cancel);
}
catch (Exception e)
{
if (session != null)
session.logout();
session = null;
log.Error(e, e);
return "";
}
if (File.Exists(bundleToUpload))
File.Delete(bundleToUpload);
// Return the uuid of upload.
if(string.IsNullOrEmpty(upload_uuid))
{
// Fail to upload the zip to CIS server.
log.ErrorFormat("Fail to upload the Server Status Report {0} to CIS server", bundleToUpload);
return "";
}
return upload_uuid;
}
public void updateHealthCheckSettings(bool success, DateTime time, string uploadUuid = "")
{
Session session = new Session(connection.Hostname, 80);
session.login_with_password(connection.Username, connection.Password);
connection.LoadCache(session);
// Round-trip format time
DateTime rtime = DateTime.SpecifyKind(time, DateTimeKind.Utc);
string stime = HealthCheckSettings.DateTimeToString(rtime);
// record upload_uuid,
// release the lock,
// set the time of LAST_SUCCESSFUL_UPLOAD or LAST_FAILED_UPLOAD
Dictionary<string, string> config = Pool.get_health_check_config(session, connection.Cache.Pools[0].opaque_ref);
config[HealthCheckSettings.UPLOAD_LOCK] = "";
if (success)
{
config[HealthCheckSettings.LAST_SUCCESSFUL_UPLOAD] = stime;
config[HealthCheckSettings.UPLOAD_UUID] = uploadUuid;
// reset the NEW_UPLOAD_REQUEST field, if the current successful upload was started after the request
DateTime newUploadRequestTime;
if (HealthCheckSettings.TryParseStringToDateTime(config[HealthCheckSettings.NEW_UPLOAD_REQUEST], out newUploadRequestTime))
{
if (rtime > newUploadRequestTime)
config[HealthCheckSettings.NEW_UPLOAD_REQUEST] = "";
}
}
else
config[HealthCheckSettings.LAST_FAILED_UPLOAD] = stime;
Pool.set_health_check_config(session, connection.Cache.Pools[0].opaque_ref, config);
if (session != null)
session.logout();
session = null;
}
public void OnTimer(object sender, System.Timers.ElapsedEventArgs args)
{
log.Info("XenServer Health Check Service start to refresh uploading tasks");
//We need to check if CIS can be accessed in current enviroment
List<ServerInfo> servers = ServerListHelper.instance.GetServerList();
foreach (ServerInfo server in servers)
{
if (server.task != null && (!server.task.IsCompleted || !server.task.IsCanceled || !server.task.IsFaulted))
{
continue;
}
XenConnection connectionInfo = new XenConnection();
connectionInfo.Hostname = server.HostName;
connectionInfo.Username = server.UserName;
connectionInfo.Password = server.Password;
log.InfoFormat("Check server {0} with user {1}", connectionInfo.Hostname, connectionInfo.Username);
Session session = new Session(server.HostName, 80);
session.APIVersion = API_Version.LATEST;
try
{
session.login_with_password(server.UserName, server.Password);
connectionInfo.LoadCache(session);
if (RequestUploadTask.Request(connectionInfo, session) || RequestUploadTask.OnDemandRequest(connectionInfo, session))
{
// Create a task to collect server status report and upload to CIS server
log.InfoFormat("Start to upload server status report for XenServer {0}", connectionInfo.Hostname);
XenServerHealthCheckBundleUpload upload = new XenServerHealthCheckBundleUpload(connectionInfo);
Action uploadAction = delegate()
{
upload.runUpload(cts.Token);
};
System.Threading.Tasks.Task task = new System.Threading.Tasks.Task(uploadAction);
task.Start();
server.task = task;
ServerListHelper.instance.UpdateServerInfo(server);
}
session.logout();
session = null;
}
catch (Exception exn)
{
if (session != null)
session.logout();
log.Error(exn, exn);
}
}
}
public void OnTimer(object sender, System.Timers.ElapsedEventArgs args)
{
log.Info("XenServer Health Check Service start to refresh uploading tasks");
//We need to check if CIS can be accessed in current enviroment
List<ServerInfo> servers = ServerListHelper.instance.GetServerList();
foreach (ServerInfo server in servers)
{
if (server.task != null && (!server.task.IsCompleted || !server.task.IsCanceled || !server.task.IsFaulted))
{
continue;
}
bool needReconnect = false;
log.InfoFormat("Check server {0} with user {1}", server.HostName, server.UserName);
Session session = new Session(server.HostName, 80);
session.APIVersion = API_Version.LATEST;
try
{
session.login_with_password(server.UserName, server.Password, Helper.APIVersionString(API_Version.LATEST), Session.UserAgent);
}
catch (Exception exn)
{
if (exn is Failure && ((Failure)exn).ErrorDescription[0] == Failure.HOST_IS_SLAVE)
{
string masterName = ((Failure)exn).ErrorDescription[1];
if (ServerListHelper.instance.UpdateServerCredential(server, masterName))
{
log.InfoFormat("Refresh credential to master {0} need refresh connection", masterName);
server.HostName = masterName;
needReconnect = true;
}
else
{
log.InfoFormat("Remove credential since it is the slave of master {0}", masterName);
if (session != null)
session.logout();
log.Error(exn, exn);
continue;
}
}
else
{
if (session != null)
session.logout();
log.Error(exn, exn);
continue;
}
}
try
{
if (needReconnect)
{
if (session != null)
session.logout();
log.InfoFormat("Reconnect to master {0}", server.HostName);
session = new Session(server.HostName, 80);
session.APIVersion = API_Version.LATEST;
session.login_with_password(server.UserName, server.Password, Helper.APIVersionString(API_Version.LATEST), Session.UserAgent);
}
XenConnection connectionInfo = new XenConnection();
connectionInfo.Hostname = server.HostName;
connectionInfo.Username = server.UserName;
connectionInfo.Password = server.Password;
connectionInfo.LoadCache(session);
if (RequestUploadTask.Request(connectionInfo, session) || RequestUploadTask.OnDemandRequest(connectionInfo, session))
{
// Create a task to collect server status report and upload to CIS server
log.InfoFormat("Start to upload server status report for XenServer {0}", connectionInfo.Hostname);
XenServerHealthCheckBundleUpload upload = new XenServerHealthCheckBundleUpload(connectionInfo);
Action uploadAction = delegate()
{
upload.runUpload(cts.Token);
};
System.Threading.Tasks.Task task = new System.Threading.Tasks.Task(uploadAction);
task.Start();
server.task = task;
ServerListHelper.instance.UpdateServerInfo(server);
}
session.logout();
session = null;
}
catch (Exception exn)
{
if (session != null)
session.logout();
log.Error(exn, exn);
}
}
}
/// <summary>
/// Try and run the delegate.
/// If it fails with a web exception or invalid session, try again.
/// Only retry 60 times.
/// </summary>
/// <param name="connection"></param>
/// <param name="session"></param>
/// <param name="f"></param>
/// <param name="p"></param>
/// <returns></returns>
public static Object DoWithSessionRetry(IXenConnection connection, ref Session session, Delegate f, params object[] p)
{
int retries = 60;
while (true)
{
try
{
object[] ps = new object[p.Length + 1];
ps[0] = session;
for (int i = 0; i < p.Length; i++)
{
ps[i + 1] = p[i];
}
try
{
return(f.DynamicInvoke(ps));
}
catch (TargetInvocationException exn)
{
throw exn.InnerException;
}
}
catch (WebException we)
{
log.ErrorFormat("WebException in DoWithSessionRetry, retry {0}", retries);
log.Error(we, we);
if (retries <= 0)
{
throw;
}
}
catch (Failure failure)
{
log.ErrorFormat("Failure in DoWithSessionRetry, retry {0}", retries);
log.Error(failure, failure);
if (retries <= 0)
{
throw;
}
if (failure.ErrorDescription.Count < 1 || failure.ErrorDescription[0] != XenAPI.Failure.SESSION_INVALID)
{
throw;
}
}
Session newSession = connection.DuplicateSession();
try
{
// Try and logout the old session using the new session
newSession.logout(session.opaque_ref);
}
catch
{
}
session = newSession;
retries--;
Thread.Sleep(connection.ExpectDisruption ? 500 : 100);
}
}
public void updateCallHomeSettings(bool success, DateTime time, string uploadUuid = "")
{
Session session = new Session(connection.Hostname, 80);
session.login_with_password(connection.Username, connection.Password);
connection.LoadCache(session);
// Round-trip format time
DateTime rtime = DateTime.SpecifyKind(time, DateTimeKind.Utc);
string stime = CallHomeSettings.DateTimeToString(rtime);
// record upload_uuid,
// release the lock,
// set the time of LAST_SUCCESSFUL_UPLOAD or LAST_FAILED_UPLOAD
Dictionary<string, string> config = Pool.get_health_check_config(session, connection.Cache.Pools[0].opaque_ref);
config[CallHomeSettings.UPLOAD_LOCK] = "";
if (success)
{
config[CallHomeSettings.LAST_SUCCESSFUL_UPLOAD] = stime;
config[CallHomeSettings.UPLOAD_UUID] = uploadUuid;
}
else
config[CallHomeSettings.LAST_FAILED_UPLOAD] = stime;
Pool.set_health_check_config(session, connection.Cache.Pools[0].opaque_ref, config);
if (session != null)
session.logout();
session = null;
}
/// <summary>
///
/// </summary>
/// <param name="text"></param>
/// <param name="hosts"></param>
/// <returns></returns>
private void btnSnapshotRevert_Click(object sender, EventArgs e)
{
ServicePointManager.ServerCertificateValidationCallback = delegate { return(true); };
ServicePointManager.SecurityProtocol = (SecurityProtocolType)(0xc0 | 0x300 | 0xc00);
string ipAddr = string.Empty;
if (!string.IsNullOrEmpty(this.txtBxIPAddr.Text))
{
ipAddr = this.txtBxIPAddr.Text;
}
else
{
ipAddr = string.Empty;
}
XenAPI.Session session = new XenAPI.Session(ipAddr, 443);
session.login_with_password("root", "dpsvl123", "", "XenSDKSample");
var vmRecords = VM.get_all_records(session);
var vmRef = (from KeyValuePair <XenRef <VM>, VM> kvp in vmRecords
let theVm = kvp.Value
where !theVm.is_a_template && !theVm.is_control_domain &&
theVm.name_label.ToLower().Contains("Window_7_64_M1".ToLower())
select kvp.Key).FirstOrDefault();
var vmRefValue = (from KeyValuePair <XenRef <VM>, VM> kvp in vmRecords
let theVm = kvp.Value
where !theVm.is_a_template && !theVm.is_control_domain &&
theVm.name_label.ToLower().Contains("window")
select kvp.Value).FirstOrDefault();
var vmRefSnapShot = (from KeyValuePair <XenRef <VM>, VM> kvp in vmRecords
let theVm = kvp.Value
where !theVm.is_a_template && !theVm.is_control_domain &&
theVm.name_label.ToLower().Contains("inita")
select kvp.Value).FirstOrDefault();
if (vmRef == null)
{
MessageBox.Show("Cannot find a halted linux VM. Please create one.");
}
VM vm = VM.get_record(session, vmRef);
var snapshotRef = VM.get_snapshots(session, vmRef).FirstOrDefault();
//var snapshotUUID = VM.get_uuid(session, snapshotRef);
//VM.destroy(session, snapshotRef);
//MessageBox.Show("Here is the vm I destroyed! ");
//var newVM = VM.snapshot(session, vmRef, "inita");
//VM vm = VM.get_record(session, newVM);
//VM.shutdown(session, vmRef);
//VM.start(session, vmRef, false, true);
VM.revert(session, snapshotRef);
//MessageBox.Show("The current state " + VM.get_power_state(session, vmRef));
VM.resume(session, vmRef, false, true);
//VM.start(session, vmRef, false, true);
//MessageBox.Show("The current state " + VM.get_power_state(session, vmRef));
//MessageBox.Show("Here is the vm I want to revert "+vm.name_label);
//MessageBox.Show("Here is the vm I created" + vm.name_label);
MessageBox.Show("Here is the vm I rebooted" + vm.name_label);
session.logout();
//GC.SuppressFinalize(this);
}
public bool Connect(string server, int port, string vm_uuid, string username, string password, int width, int height, bool show_border)
{
// reinitiailize the VNC Control
initSubControl(width, height, true, show_border);
m_vncClient.ErrorOccurred += ConnectionErrorHandler;
try {
// Create a new XenAPI session
m_session = new Session(Session.STANDARD_TIMEOUT, server, port);
// Authenticate with username and password passed in.
// The third parameter tells the server which API version we support.
m_session.login_with_password(username, password, API_Version.LATEST);
m_vncPassword = password.ToCharArray();
// Find the VM in question
XenRef<VM> vmRef = VM.get_by_uuid(m_session, vm_uuid);
m_sourceVM = VM.get_record(m_session, vmRef);
// Check if this VM is PV or HVM
m_sourceIsPV = (m_sourceVM.PV_bootloader.Length != 0); /* No PV bootloader specified implies HVM */
// Get the console that uses the RFB (VNC) protocol
List<XenRef<XenAPI.Console>> consoleRefs = VM.get_consoles(m_session, vmRef);
XenAPI.Console console = null;
foreach (XenRef<XenAPI.Console> consoleRef in consoleRefs)
{
console = XenAPI.Console.get_record(m_session, consoleRef);
if (console.protocol == console_protocol.rfb)
break;
console = null;
}
if (console != null)
//ThreadPool.QueueUserWorkItem(new WaitCallback(ConnectToConsole), new KeyValuePair<VNCGraphicsClient, XenAPI.Console>(m_vncClient, console));
ConnectHostedConsole(m_vncClient, console, m_session.uuid);
// done with this session, log it out
m_session.logout();
}
catch (Exception exn)
{
// call the expcetion handler directly
this.ConnectionErrorHandler(this, exn);
}
return m_vncClient.Connected;
}