private void ShowRequestHistory(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a list of recent requests received from the clients.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" History -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("History of requests received by {0}:", Name);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("Command".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("Received".PadRight(25));
responseMessage.Append(' ');
responseMessage.Append("Sender".PadRight(30));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 25));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 30));
foreach (ClientRequestInfo historicRequest in m_clientRequestHistory)
{
responseMessage.AppendLine();
responseMessage.Append(historicRequest.Request.Command.PadRight(20));
responseMessage.Append(' ');
responseMessage.Append(historicRequest.ReceivedAt.ToString().PadRight(25));
responseMessage.Append(' ');
responseMessage.Append(string.Format("{0} from {1}", historicRequest.Sender.UserName, historicRequest.Sender.MachineName).PadRight(30));
}
UpdateStatus(requestInfo.Sender.ClientID, responseMessage.ToString(), UpdateCrlfCount);
}
}
private void ShowRequestHelp(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a list of commands supported by the service.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Help -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
bool showAdvancedHelp = requestInfo.Request.Arguments.Exists("advanced");
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("Commands supported by {0}:", Name);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("Command".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("Description".PadRight(55));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 55));
foreach (ClientRequestHandlerInfo handler in m_clientRequestHandlers)
{
if (handler.IsAdvertised || showAdvancedHelp)
{
responseMessage.AppendLine();
responseMessage.Append(handler.Command.PadRight(20));
responseMessage.Append(' ');
responseMessage.Append(handler.CommandDescription.PadRight(55));
}
}
UpdateStatus(requestInfo.Sender.ClientID, responseMessage.ToString(), UpdateCrlfCount);
}
}
private void LoadSchedules(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Loads all process schedules from the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" LoadSchedules -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list of all process schedules");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
bool listSchedules = requestInfo.Request.Arguments.Exists("list");
UpdateStatus(requestInfo.Sender.ClientID, "Attempting to load process schedules from the config file...", UpdateCrlfCount);
m_scheduler.LoadSettings();
UpdateStatus(requestInfo.Sender.ClientID, "Successfully loaded process schedules from the config file.", UpdateCrlfCount);
if (listSchedules)
{
requestInfo.Request = ClientRequest.Parse("Schedules");
ShowSchedules(requestInfo);
}
}
}
private void ShowSettings(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a list of service settings from the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Settings -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -?".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.AppendLine();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, helpMessage.ToString());
}
else
{
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("Settings for {0}:", Name);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("Category".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("Name".PadRight(25));
responseMessage.Append(' ');
responseMessage.Append("Value".PadRight(30));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 25));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 30));
IPersistSettings typedComponent;
lock (m_serviceComponents)
{
foreach (object component in m_serviceComponents)
{
typedComponent = component as IPersistSettings;
if (typedComponent != null)
{
foreach (CategorizedSettingsElement setting in ConfigurationFile.Current.Settings[typedComponent.SettingsCategory])
{
// Skip encrypted settings for security purpose.
if (setting.Encrypted)
continue;
responseMessage.AppendLine();
responseMessage.Append(typedComponent.SettingsCategory.PadRight(20));
responseMessage.Append(' ');
responseMessage.Append(setting.Name.PadRight(25));
responseMessage.Append(' ');
if (!string.IsNullOrEmpty(setting.Value))
responseMessage.Append(setting.Value.PadRight(30));
else
responseMessage.Append("[Not Set]".PadRight(30));
}
}
}
}
responseMessage.AppendLine();
responseMessage.AppendLine();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, responseMessage.ToString());
}
}
private void StartProcess(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 1)
{
bool showAdvancedHelp = requestInfo.Request.Arguments.Exists("advanced");
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Starts execution of the specified service or system process.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Start \"Process Name\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -restart".PadRight(20));
helpMessage.Append("Aborts the process if executing and start it again");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list of all service or system processes");
if (showAdvancedHelp)
{
helpMessage.AppendLine();
helpMessage.Append(" -system".PadRight(20));
helpMessage.Append("Treats the specified process as a system process");
}
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
string processName = requestInfo.Request.Arguments["orderedarg1"];
bool systemProcess = requestInfo.Request.Arguments.Exists("system");
bool restartProcess = requestInfo.Request.Arguments.Exists("restart");
bool listProcesses = requestInfo.Request.Arguments.Exists("list");
if (restartProcess)
{
requestInfo.Request = ClientRequest.Parse(string.Format("Abort \"{0}\" {1}", processName, systemProcess ? "-system" : ""));
AbortProcess(requestInfo);
}
if (!systemProcess)
{
ServiceProcess processToStart = GetProcess(processName);
if (processToStart != null)
{
if (processToStart.CurrentState != ProcessState.Processing)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to start service process \"{0}\"...", processName), UpdateCrlfCount);
processToStart.Start();
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully started service process \"{0}\".", processName), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to start process \"{0}\". Process is already executing.", processName), UpdateCrlfCount);
}
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to start service process \"{0}\". Process is not defined.", processName), UpdateCrlfCount);
}
}
else
{
try
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to start system process \"{0}\"...", processName), UpdateCrlfCount);
Process startedProcess = Process.Start(processName);
if (startedProcess != null)
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully started system process \"{0}\".", processName), UpdateCrlfCount);
else
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to start system process \"{0}\".", processName), UpdateCrlfCount);
}
catch (Exception ex)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to start system process \"{0}\". {1}.", processName, ex.Message), UpdateCrlfCount);
}
}
if (listProcesses)
{
requestInfo.Request = ClientRequest.Parse(string.Format("Processes {0}", systemProcess ? "-system" : ""));
ShowProcesses(requestInfo);
}
}
}
private void RescheduleProcess(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 2)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Schedules or re-schedules an existing process defined in the service.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Reschedule \"Process Name\" \"Schedule Rule\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -save".PadRight(20));
helpMessage.Append("Saves all process schedules to the config file");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list of all process schedules");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("NOTE: The schedule rule uses UNIX crontab syntax which consists of 5 parts (For example, \"* * * * *\"). ");
helpMessage.Append("Following is a brief description of each of the 5 parts that make up the rule:");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Part 1 - Minute part; value range 0 to 59. ");
helpMessage.AppendLine();
helpMessage.Append(" Part 2 - Hour part; value range 0 to 23. ");
helpMessage.AppendLine();
helpMessage.Append(" Part 3 - Day of month part; value range 1 to 31. ");
helpMessage.AppendLine();
helpMessage.Append(" Part 4 - Month part; value range 1 to 12. ");
helpMessage.AppendLine();
helpMessage.Append(" Part 5 - Day of week part; value range 0 to 6 (0 = Sunday). ");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("Following is a description of valid syntax for all parts of the rule:");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" * - Any value in the range for the date-time part.");
helpMessage.AppendLine();
helpMessage.Append(" */n - Every nth value for the data-time part.");
helpMessage.AppendLine();
helpMessage.Append(" n1-n2 - Range of values (inclusive) for the date-time part.");
helpMessage.AppendLine();
helpMessage.Append(" n1,n2 - 1 or more specific values for the date-time part.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("Examples:");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" \"* * * * *\" - Process executes every minute.");
helpMessage.AppendLine();
helpMessage.Append(" \"*/5 * * * *\" - Process executes every 5 minutes.");
helpMessage.AppendLine();
helpMessage.Append(" \"5 * * * *\" - Process executes 5 past every hour.");
helpMessage.AppendLine();
helpMessage.Append(" \"0 0 * * *\" - Process executes every day at midnight.");
helpMessage.AppendLine();
helpMessage.Append(" \"0 0 1 * *\" - Process executes 1st of every month at midnight.");
helpMessage.AppendLine();
helpMessage.Append(" \"0 0 * * 0\" - Process executes every Sunday at midnight.");
helpMessage.AppendLine();
helpMessage.Append(" \"0 0 31 12 *\" - Process executes on December 31 at midnight.");
helpMessage.AppendLine();
helpMessage.Append(" \"5,10 0-2 * * *\" - Process executes 5 and 10 past hours 12am to 2am.");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
string processName = requestInfo.Request.Arguments["orderedarg1"];
string scheduleRule = requestInfo.Request.Arguments["orderedarg2"];
bool saveSchedules = requestInfo.Request.Arguments.Exists("save");
bool listSchedules = requestInfo.Request.Arguments.Exists("list");
try
{
// Schedule the process if not scheduled or update its schedule if scheduled.
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to schedule process \"{0}\" with rule \"{1}\"...", processName, scheduleRule), UpdateCrlfCount);
ScheduleProcess(processName, scheduleRule, true);
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully scheduled process \"{0}\" with rule \"{1}\".", processName, scheduleRule), UpdateCrlfCount);
if (saveSchedules)
{
requestInfo.Request = ClientRequest.Parse("SaveSchedules");
SaveSchedules(requestInfo);
}
}
catch (Exception ex)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to schedule process \"{0}\". {1}", processName, ex.Message), UpdateCrlfCount);
}
if (listSchedules)
{
requestInfo.Request = ClientRequest.Parse("Schedules");
ShowSchedules(requestInfo);
}
}
}
/// <summary>
/// Returns an <see cref="ClientRequestInfo"/> object for the specified <paramref name="requestCommand"/> that can be used
/// to invoke <see cref="ServiceHelper.ClientRequestHandlers"/> manually as if the request was sent by a <see cref="ClientHelper"/> remotely.
/// </summary>
/// <param name="requestCommand">Command for which an <see cref="ClientRequestInfo"/> object is to be created.</param>
/// <returns>An <see cref="ClientRequestInfo"/> object.</returns>
public static ClientRequestInfo PretendRequest(string requestCommand)
{
ClientRequest request = ClientRequest.Parse(requestCommand);
ClientRequestInfo requestInfo = new ClientRequestInfo(new ClientInfo(), request);
return requestInfo;
}
private void ReloadSettings(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 1)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Reloads settings of the component whose settings are saved under the specified category in the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" ReloadSettings \"Category Name\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("IMPORTANT: Category name must be defined as one of the queryable settings categories in the QueryableSettingsCategories property of ServiceHelper. ");
helpMessage.Append("Also, category name is case sensitive so it must be the same case as it appears in the settings listing.");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
string settingsTarget = null;
string categoryName = requestInfo.Request.Arguments["orderedarg1"];
if (m_queryableSettingsCategories.IndexOf(categoryName) >= 0)
{
if (m_settingsCategory == categoryName)
{
LoadSettings();
settingsTarget = categoryName;
}
else
{
if (settingsTarget != null)
{
// Check service components
foreach (IServiceComponent component in m_serviceComponents)
{
IPersistSettings reloadableComponent = component as IPersistSettings;
if (reloadableComponent != null && reloadableComponent.SettingsCategory == categoryName)
{
reloadableComponent.LoadSettings();
settingsTarget = component.Name;
break;
}
}
}
if (settingsTarget != null)
{
// Check containter components
foreach (Component component in Container.Components)
{
IPersistSettings reloadableComponent = component as IPersistSettings;
if (reloadableComponent != null && reloadableComponent.SettingsCategory == categoryName)
{
reloadableComponent.LoadSettings();
settingsTarget = component.GetType().Name;
break;
}
}
}
}
if (!string.IsNullOrEmpty(settingsTarget))
{
if (settingsTarget == categoryName)
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully loaded settings for category \"{1}\".", categoryName), UpdateCrlfCount);
else
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully loaded settings for component \"{0}\" from category \"{1}\".", settingsTarget, categoryName), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to load component settings from category \"{0}\". No corresponding settings category name found.", categoryName), UpdateCrlfCount);
}
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to load component settings from category \"{0}\". Category is not one of the queryable settings categories.", categoryName), UpdateCrlfCount);
}
}
}
private void SaveSchedules(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Saves all process schedules to the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" SaveSchedules -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -?".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list of all process schedules");
helpMessage.AppendLine();
helpMessage.AppendLine();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, helpMessage.ToString());
}
else
{
bool listSchedules = requestInfo.Request.Arguments.Exists("list");
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Attempting to save process schedules to the config file...\r\n\r\n");
m_processScheduler.SaveSettings();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Successfully saved process schedules to the config file.\r\n\r\n");
if (listSchedules)
{
requestInfo.Request = ClientRequest.Parse("Schedules");
ShowSchedules(requestInfo);
}
}
}
private void RemoteTelnetSession(ClientRequestInfo requestinfo)
{
if (m_remoteCommandProcess == null && requestinfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Allows for a telnet session to the service server.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Telnet -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -?".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -connect".PadRight(20));
helpMessage.Append("Establishes a telnet session (requires password)");
helpMessage.AppendLine();
helpMessage.Append(" -disconnect".PadRight(20));
helpMessage.Append("Terminates established telnet session");
helpMessage.AppendLine();
helpMessage.AppendLine();
UpdateStatus(requestinfo.Sender.ClientID, UpdateType.Information, helpMessage.ToString());
}
else
{
bool connectSession = requestinfo.Request.Arguments.Exists("connect");
bool disconnectSession = requestinfo.Request.Arguments.Exists("disconnect");
if (m_remoteCommandProcess == null && connectSession && !string.IsNullOrEmpty(requestinfo.Request.Arguments["connect"]))
{
// User wants to establish a remote command session.
string password = requestinfo.Request.Arguments["connect"];
if (password == m_telnetSessionPassword)
{
// Establish remote command session
m_remoteCommandProcess = new Process();
m_remoteCommandProcess.ErrorDataReceived += RemoteCommandProcess_ErrorDataReceived;
m_remoteCommandProcess.OutputDataReceived += RemoteCommandProcess_OutputDataReceived;
m_remoteCommandProcess.StartInfo.FileName = "cmd.exe";
m_remoteCommandProcess.StartInfo.UseShellExecute = false;
m_remoteCommandProcess.StartInfo.RedirectStandardInput = true;
m_remoteCommandProcess.StartInfo.RedirectStandardOutput = true;
m_remoteCommandProcess.StartInfo.RedirectStandardError = true;
m_remoteCommandProcess.Start();
m_remoteCommandProcess.BeginOutputReadLine();
m_remoteCommandProcess.BeginErrorReadLine();
UpdateStatus(UpdateType.Information, "Remote command session established - status updates are suspended.\r\n\r\n");
m_remoteCommandClientID = requestinfo.Sender.ClientID;
SendResponse(requestinfo.Sender.ClientID, new ServiceResponse("TelnetSession", "Established"));
}
else
{
UpdateStatus(requestinfo.Sender.ClientID, UpdateType.Alarm, "Failed to establish remote command session - Password is invalid.\r\n\r\n");
}
}
else if (string.Compare(requestinfo.Request.Command, "Telnet", true) == 0 && m_remoteCommandProcess != null && disconnectSession)
{
// User wants to terminate an established remote command session.
m_remoteCommandProcess.ErrorDataReceived -= RemoteCommandProcess_ErrorDataReceived;
m_remoteCommandProcess.OutputDataReceived -= RemoteCommandProcess_OutputDataReceived;
if (!m_remoteCommandProcess.HasExited)
m_remoteCommandProcess.Kill();
m_remoteCommandProcess.Dispose();
m_remoteCommandProcess = null;
m_remoteCommandClientID = Guid.Empty;
SendResponse(requestinfo.Sender.ClientID, new ServiceResponse("TelnetSession", "Terminated"));
UpdateStatus(UpdateType.Information, "Remote command session terminated - status updates are resumed.\r\n\r\n");
}
else if (m_remoteCommandProcess != null)
{
// User has entered commands that must be redirected to the established command session.
string input = requestinfo.Request.Command + " " + requestinfo.Request.Arguments.ToString();
m_remoteCommandProcess.StandardInput.WriteLine(input);
}
else
{
// User has provided insufficient information.
requestinfo.Request = ClientRequest.Parse("Telnet /?");
RemoteTelnetSession(requestinfo);
}
}
}
private void StartProcess(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 1)
{
bool showAdvancedHelp = requestInfo.Request.Arguments.Exists("advanced");
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Starts execution of the specified service or system process.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Start \"Process Name\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -?".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -args".PadRight(20));
helpMessage.Append("Arguments to be passed in to the process");
helpMessage.AppendLine();
helpMessage.Append(" -restart".PadRight(20));
helpMessage.Append("Aborts the process if executing and start it again");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list of all service or system processes");
if (showAdvancedHelp)
{
helpMessage.AppendLine();
helpMessage.Append(" -system".PadRight(20));
helpMessage.Append("Treats the specified process as a system process");
}
helpMessage.AppendLine();
helpMessage.AppendLine();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, helpMessage.ToString());
}
else
{
string processName = requestInfo.Request.Arguments["orderedarg1"];
string processArgs = requestInfo.Request.Arguments["args"];
bool systemProcess = requestInfo.Request.Arguments.Exists("system");
bool restartProcess = requestInfo.Request.Arguments.Exists("restart");
bool listProcesses = requestInfo.Request.Arguments.Exists("list");
if (restartProcess)
{
requestInfo.Request = ClientRequest.Parse(string.Format("Abort \"{0}\" {1}", processName, systemProcess ? "-system" : ""));
AbortProcess(requestInfo);
}
if (!systemProcess)
{
ServiceProcess processToStart = FindProcess(processName);
if (processToStart != null)
{
if (processToStart.CurrentState != ServiceProcessState.Processing)
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Attempting to start service process \"{0}\"...\r\n\r\n", processName);
if (string.IsNullOrEmpty(processArgs))
{
processToStart.Start();
}
else
{
// Prepare the arguments.
string[] splitArgs = processArgs.Split(',');
Array.ForEach<string>(splitArgs, (string arg) => arg.Trim());
// Start the service process.
processToStart.Start(splitArgs);
}
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Successfully started service process \"{0}\".\r\n\r\n", processName);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to start process \"{0}\". Process is already executing.\r\n\r\n", processName);
}
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to start service process \"{0}\". Process is not defined.\r\n\r\n", processName);
}
}
else
{
try
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Attempting to start system process \"{0}\"...\r\n\r\n", processName);
Process startedProcess = Process.Start(processName, processArgs);
if (startedProcess != null)
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Successfully started system process \"{0}\".\r\n\r\n", processName);
else
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to start system process \"{0}\".\r\n\r\n", processName);
}
catch (Exception ex)
{
m_errorLogger.Log(ex);
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to start system process \"{0}\". {1}.\r\n\r\n", processName, ex.Message);
}
}
if (listProcesses)
{
requestInfo.Request = ClientRequest.Parse(string.Format("Processes {0}", systemProcess ? "-system" : ""));
ShowProcesses(requestInfo);
}
}
}
private void UpdateSettings(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 3)
{
// We'll display help about the request since we either don't have the required arguments or the user
// has explicitly requested for the help to be displayed for this request type.
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Updates the specified setting under the specified category in the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" UpdateSettings \"Category Name\" \"Setting Name\" \"Setting Value\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -?".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -add".PadRight(20));
helpMessage.Append("Adds specified setting to the specified category");
helpMessage.AppendLine();
helpMessage.Append(" -delete".PadRight(20));
helpMessage.Append("Deletes specified setting from the specified category");
helpMessage.AppendLine();
helpMessage.Append(" -reload".PadRight(20));
helpMessage.Append("Causes corresponding component to reload settings");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list all of the queryable settings");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("IMPORTANT: Only settings under the categories listed by the \"Settings\" command can be updated.");
helpMessage.AppendLine();
helpMessage.AppendLine();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, helpMessage.ToString());
}
else
{
string categoryName = requestInfo.Request.Arguments["orderedarg1"];
string settingName = requestInfo.Request.Arguments["orderedarg2"];
string settingValue = requestInfo.Request.Arguments["orderedarg3"];
bool addSetting = requestInfo.Request.Arguments.Exists("add");
bool deleteSetting = requestInfo.Request.Arguments.Exists("delete");
bool reloadSettings = requestInfo.Request.Arguments.Exists("reload");
bool listSettings = requestInfo.Request.Arguments.Exists("list");
IPersistSettings typedComponent;
lock (m_serviceComponents)
{
foreach (object component in m_serviceComponents)
{
typedComponent = component as IPersistSettings;
if (typedComponent != null &&
string.Compare(categoryName, typedComponent.SettingsCategory, true) == 0)
{
ConfigurationFile config = ConfigurationFile.Current;
CategorizedSettingsElementCollection settings = config.Settings[categoryName];
CategorizedSettingsElement setting = settings[settingName];
if (addSetting)
{
// Add new setting.
if (setting == null)
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Attempting to add setting \"{0}\" under category \"{1}\"...\r\n\r\n", settingName, categoryName);
settings.Add(settingName, settingValue);
config.Save();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Successfully added setting \"{0}\" under category \"{1}\".\r\n\r\n", settingName, categoryName);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to add setting \"{0}\" under category \"{1}\". Setting already exists.\r\n\r\n", settingName, categoryName);
return;
}
}
else if (deleteSetting)
{
// Delete existing setting.
if (setting != null)
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Attempting to delete setting \"{0}\" under category \"{1}\"...\r\n\r\n", settingName, categoryName);
settings.Remove(setting);
config.Save();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Successfully deleted setting \"{0}\" under category \"{1}\".\r\n\r\n", settingName, categoryName);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to delete setting \"{0}\" under category \"{1}\". Setting does not exist.\r\n\r\n", settingName, categoryName);
return;
}
}
else
{
// Update existing setting.
if (setting != null)
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Attempting to update setting \"{0}\" under category \"{1}\"...\r\n\r\n", settingName, categoryName);
setting.Value = settingValue;
config.Save();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Successfully updated setting \"{0}\" under category \"{1}\".\r\n\r\n", settingName, categoryName);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to update value of setting \"{0}\" under category \"{1}\" . Setting does not exist.\r\n\r\n", settingName, categoryName);
return;
}
}
if (reloadSettings)
{
// The user has requested to reload settings for all the components.
requestInfo.Request = ClientRequest.Parse(string.Format("ReloadSettings {0}", categoryName));
ReloadSettings(requestInfo);
}
if (listSettings)
{
// The user has requested to list all of the queryable settings.
requestInfo.Request = ClientRequest.Parse("Settings");
ShowSettings(requestInfo);
}
return;
}
}
}
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to update settings under category \"{0}\". No corresponding component exists.\r\n\r\n", categoryName);
}
}
private void ReloadSettings(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 1)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Reloads settings of the component whose settings are saved under the specified category in the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" ReloadSettings \"Category Name\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -?".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("IMPORTANT: Only settings under the categories listed by the \"Settings\" command can be reloaded.");
helpMessage.AppendLine();
helpMessage.AppendLine();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, helpMessage.ToString());
}
else
{
string categoryName = requestInfo.Request.Arguments["orderedarg1"];
IPersistSettings typedComponent;
lock (m_serviceComponents)
{
foreach (object component in m_serviceComponents)
{
typedComponent = component as IPersistSettings;
if (typedComponent != null &&
string.Compare(categoryName, typedComponent.SettingsCategory, true) == 0)
{
typedComponent.LoadSettings();
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Information, "Successfully loaded settings from category \"{0}\".\r\n\r\n", categoryName);
return;
}
}
}
UpdateStatus(requestInfo.Sender.ClientID, UpdateType.Alarm, "Failed to load settings from category \"{0}\". No corresponding component exists.\r\n\r\n", categoryName);
}
}
private void ShowHealthReport(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a resource utilization report for the service.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Health -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
if (m_performanceMonitor != null)
UpdateStatus(requestInfo.Sender.ClientID, m_performanceMonitor.Status, UpdateCrlfCount);
else
UpdateStatus(requestInfo.Sender.ClientID, "Performance monitor is not available.", UpdateCrlfCount);
}
}
private void m_remotingServer_ReceivedClientData(object sender, EventArgs<IdentifiableItem<Guid, byte[]>> e)
{
ClientInfo client = Serialization.GetObject<ClientInfo>(e.Argument.Item);
ClientRequest request = Serialization.GetObject<ClientRequest>(e.Argument.Item);
ClientInfo requestSender = GetConnectedClient(e.Argument.Source);
if (client != null)
{
// We've received client information from a recently connected client.
client.ConnectedAt = DateTime.Now;
m_connectedClients.Add(client);
UpdateStatus(string.Format("Remote client connected - {0} from {1}.", client.UserName, client.MachineName), UpdateCrlfCount);
}
else if (request != null)
{
try
{
ClientRequestInfo requestInfo = new ClientRequestInfo(requestSender, request);
if (m_remoteCommandClientID == Guid.Empty || requestSender.ClientID != m_remoteCommandClientID)
{
// Log the received request.
m_clientRequestHistory.Add(requestInfo);
// We'll remove old request entries if we've exceeded the limit for request history.
if (m_clientRequestHistory.Count > m_requestHistoryLimit)
m_clientRequestHistory.RemoveRange(0, (m_clientRequestHistory.Count - m_requestHistoryLimit));
// Notify the consumer about the incoming request from client.
if (ReceivedClientRequest != null)
ReceivedClientRequest(this, new EventArgs<IdentifiableItem<Guid, ClientRequest>>(new IdentifiableItem<Guid, ClientRequest>(requestSender.ClientID, request)));
ClientRequestHandlerInfo requestHandler = GetClientRequestHandler(request.Command);
if (requestHandler != null)
requestHandler.HandlerMethod(requestInfo);
else
UpdateStatus(requestSender.ClientID, string.Format("Failed to process request \"{0}\". Request is invalid.", request.Command), UpdateCrlfCount);
}
else
{
RemoteCommandSession(requestInfo);
}
}
catch (Exception ex)
{
m_errorLogger.Log(ex);
UpdateStatus(requestSender.ClientID, string.Format("Failed to process request \"{0}\". {1}.", request.Command, ex.Message), UpdateCrlfCount);
}
}
else
{
UpdateStatus(requestSender.ClientID, "Failed to process request - Request could not be deserialized.", UpdateCrlfCount);
}
}
private void ShowServiceStatus(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays status of this service and its components.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Status -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, Status, UpdateCrlfCount);
}
}
private void ShowClients(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a list of clients currently connected to the service.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Clients -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
if (m_connectedClients.Count > 0)
{
// Display info about all of the clients connected to the service.
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("Clients connected to {0}:", Name);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("Client".PadRight(25));
responseMessage.Append(' ');
responseMessage.Append("Machine".PadRight(15));
responseMessage.Append(' ');
responseMessage.Append("User".PadRight(15));
responseMessage.Append(' ');
responseMessage.Append("Connected".PadRight(20));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 25));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 15));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 15));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 20));
foreach (ClientInfo clientInfo in m_connectedClients)
{
responseMessage.AppendLine();
if (!string.IsNullOrEmpty(clientInfo.ClientName))
responseMessage.Append(clientInfo.ClientName.PadRight(25));
else
responseMessage.Append("[Not Available]".PadRight(25));
responseMessage.Append(' ');
if (!string.IsNullOrEmpty(clientInfo.MachineName))
responseMessage.Append(clientInfo.MachineName.PadRight(15));
else
responseMessage.Append("[Not Available]".PadRight(15));
responseMessage.Append(' ');
if (!string.IsNullOrEmpty(clientInfo.UserName))
responseMessage.Append(clientInfo.UserName.PadRight(15));
else
responseMessage.Append("[Not Available]".PadRight(15));
responseMessage.Append(' ');
responseMessage.Append(clientInfo.ConnectedAt.ToString("MM/dd/yy hh:mm:ss tt").PadRight(20));
}
UpdateStatus(requestInfo.Sender.ClientID, responseMessage.ToString(), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("No clients are connected to {0}", Name), UpdateCrlfCount);
}
}
}
private void UpdateSettings(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 3)
{
// We'll display help about the request since we either don't have the required arguments or the user
// has explicitly requested for the help to be displayed for this request type.
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Updates the specified setting under the specified category in the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" UpdateSettings \"Category Name\" \"Setting Name\" \"Setting Value\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -add".PadRight(20));
helpMessage.Append("Adds specified setting to the specified category");
helpMessage.AppendLine();
helpMessage.Append(" -delete".PadRight(20));
helpMessage.Append("Deletes specified setting from the specified category");
helpMessage.AppendLine();
helpMessage.Append(" -reload".PadRight(20));
helpMessage.Append("Causes corresponding component to reload settings");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list all of the queryable settings");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("IMPORTANT: Category name must be defined as one of the queryable settings categories in the QueryableSettingsCategories property of ServiceHelper. ");
helpMessage.Append("Also, category and setting names are case sensitive so they must be the same case as they appears in the settings listing.");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
string categoryName = requestInfo.Request.Arguments["orderedarg1"];
string settingName = requestInfo.Request.Arguments["orderedarg2"];
string settingValue = requestInfo.Request.Arguments["orderedarg3"];
bool addSetting = requestInfo.Request.Arguments.Exists("add");
bool deleteSetting = requestInfo.Request.Arguments.Exists("delete");
bool reloadSettings = requestInfo.Request.Arguments.Exists("reload");
bool listSettings = requestInfo.Request.Arguments.Exists("list");
if (m_queryableSettingsCategories.IndexOf(categoryName) >= 0)
{
CategorizedSettingsElementCollection settings = ConfigurationFile.Current.Settings[categoryName];
CategorizedSettingsElement setting;
if (settings != null)
{
// The specified category is one of the defined queryable categories.
if (true == addSetting)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to add setting \"{0}\" under category \"{1}\"...", settingName, categoryName), UpdateCrlfCount);
settings.Add(settingName, settingValue);
ConfigurationFile.Current.Save();
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully added setting \"{0}\" under category \"{1}\".", settingName, categoryName), UpdateCrlfCount);
}
else if (true == deleteSetting)
{
setting = settings[settingName];
if (setting != null)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to delete setting \"{0}\" under category \"{1}\"...", settingName, categoryName), UpdateCrlfCount);
settings.Remove(setting);
ConfigurationFile.Current.Save();
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully deleted setting \"{0}\" under category \"{1}\".", settingName, categoryName), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to delete setting \"{0}\" under category \"{1}\". Setting does not exist.", settingName, categoryName), UpdateCrlfCount);
}
}
else
{
setting = settings[settingName];
if (setting != null)
{
// The requested setting does exist under the specified category.
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to update setting \"{0}\" under category \"{1}\"...", settingName, categoryName), UpdateCrlfCount);
setting.Value = settingValue;
ConfigurationFile.Current.Save();
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully updated setting \"{0}\" under category \"{1}\".", settingName, categoryName), UpdateCrlfCount);
}
else
{
// The requested setting does not exist under the specified category.
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to update value of setting \"{0}\" under category \"{1}\" . Setting does not exist.", settingName, categoryName), UpdateCrlfCount);
}
}
if (reloadSettings)
{
// The user has requested to reload settings for all the components.
requestInfo.Request = ClientRequest.Parse(string.Format("ReloadSettings {0}", categoryName));
ReloadSettings(requestInfo);
}
if (listSettings)
{
// The user has requested to list all of the queryable settings.
requestInfo.Request = ClientRequest.Parse("Settings");
ShowSettings(requestInfo);
}
}
else
{
// The specified category does not exist.
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to update value of setting \"{0}\" under category \"{1}\". Category does not exist.", settingName, categoryName), UpdateCrlfCount);
}
}
else
{
// The specified category is not one of the defined queryable categories.
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to update value of setting \"{0}\" under category \"{1}\". Category is not one of the queryable categories.", settingName, categoryName), UpdateCrlfCount);
}
}
}
private void ShowSettings(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a list of queryable settings of the service from the config file.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Settings -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
string[] settingsCategories = m_queryableSettingsCategories.Replace(" ", "").Split(',');
if (settingsCategories.Length > 0)
{
// Display info about all of the queryable settings defined in the service.
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("Queryable settings of {0}:", Name);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("Category".PadRight(25));
responseMessage.Append(' ');
responseMessage.Append("Name".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("Value".PadRight(30));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 25));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 30));
foreach (string category in settingsCategories)
{
foreach (CategorizedSettingsElement setting in ConfigurationFile.Current.Settings[category])
{
responseMessage.AppendLine();
responseMessage.Append(category.PadRight(25));
responseMessage.Append(' ');
responseMessage.Append(setting.Name.PadRight(20));
responseMessage.Append(' ');
if (!string.IsNullOrEmpty(setting.Value))
responseMessage.Append(setting.Value.PadRight(30));
else
responseMessage.Append("[Not Set]".PadRight(30));
}
}
UpdateStatus(requestInfo.Sender.ClientID, responseMessage.ToString(), UpdateCrlfCount);
}
else
{
// No queryable settings are defined in the service.
UpdateStatus(requestInfo.Sender.ClientID, string.Format("No queryable settings are defined in {0}.", Name), UpdateCrlfCount);
}
}
}
private void AbortProcess(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 1)
{
bool showAdvancedHelp = requestInfo.Request.Arguments.Exists("advanced");
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Aborts the specified service or system process if executing.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Abort \"Process Name\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list of all service or system processes");
if (showAdvancedHelp)
{
helpMessage.AppendLine();
helpMessage.Append(" -system".PadRight(20));
helpMessage.Append("Treats the specified process as a system process");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append("NOTE: Specify process name of \"Me\" to kill current service process. ");
}
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
string processName = requestInfo.Request.Arguments["orderedarg1"];
bool systemProcess = requestInfo.Request.Arguments.Exists("system");
bool listProcesses = requestInfo.Request.Arguments.Exists("list");
if (!systemProcess)
{
ServiceProcess processToAbort = GetProcess(processName);
if (processToAbort != null)
{
if (processToAbort.CurrentState == ProcessState.Processing)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to abort service process \"{0}\"...", processName), UpdateCrlfCount);
processToAbort.Abort();
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully aborted service process \"{0}\".", processName), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to abort service process \"{0}\". Process is not executing.", processName), UpdateCrlfCount);
}
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to abort service process \"{0}\". Process is not defined.", processName), UpdateCrlfCount);
}
}
else
{
Process processToAbort = null;
if (string.Compare(processName, "Me", true) == 0)
{
processName = Process.GetCurrentProcess().ProcessName;
}
foreach (Process process in Process.GetProcessesByName(processName))
{
// Lookup for the system process by name.
processToAbort = process;
break;
}
if (processToAbort == null)
{
int processID;
if (int.TryParse(processName, out processID) && processID > 0)
{
processToAbort = Process.GetProcessById(processID);
processName = processToAbort.ProcessName;
}
}
if (processToAbort != null)
{
try
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to abort system process \"{0}\"...", processName), UpdateCrlfCount);
processToAbort.Kill();
if (processToAbort.WaitForExit(10000))
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully aborted system process \"{0}\".", processName), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to abort system process \"{0}\". Process not responding.", processName), UpdateCrlfCount);
}
}
catch (Exception ex)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to abort system process \"{0}\". {1}.", processName, ex.Message), UpdateCrlfCount);
}
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to abort system process \"{0}\". Process is not running.", processName), UpdateCrlfCount);
}
}
if (listProcesses)
{
requestInfo.Request = ClientRequest.Parse(string.Format("Processes {0}", systemProcess ? "-system" : ""));
ShowProcesses(requestInfo);
}
}
}
private void ShowProcesses(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
bool showAdvancedHelp = requestInfo.Request.Arguments.Exists("advanced");
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a list of defined service processes or running system processes.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Processes -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
if (showAdvancedHelp)
{
helpMessage.AppendLine();
helpMessage.Append(" -system".PadRight(20));
helpMessage.Append("Displays system processes instead of service processes");
}
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
bool listSystemProcesses = requestInfo.Request.Arguments.Exists("system");
if (!listSystemProcesses)
{
if (m_processes.Count > 0)
{
// Display info about all the processes defined in the service.
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("Processes defined in {0}:", Name);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("Name".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("State".PadRight(15));
responseMessage.Append(' ');
responseMessage.Append("Last Exec. Start".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("Last Exec. Stop".PadRight(20));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 15));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 20));
foreach (ServiceProcess process in m_processes)
{
responseMessage.AppendLine();
responseMessage.Append(process.Name.PadRight(20));
responseMessage.Append(' ');
responseMessage.Append(process.CurrentState.ToString().PadRight(15));
responseMessage.Append(' ');
if (process.ExecutionStartTime != DateTime.MinValue)
responseMessage.Append(process.ExecutionStartTime.ToString("MM/dd/yy hh:mm:ss tt").PadRight(20));
else
responseMessage.Append("[Not Executed]".PadRight(20));
responseMessage.Append(' ');
if (process.ExecutionStopTime != DateTime.MinValue)
{
responseMessage.Append(process.ExecutionStopTime.ToString("MM/dd/yy hh:mm:ss tt").PadRight(20));
}
else
{
if (process.ExecutionStartTime != DateTime.MinValue)
responseMessage.Append("[Executing]".PadRight(20));
else
responseMessage.Append("[Not Executed]".PadRight(20));
}
}
UpdateStatus(requestInfo.Sender.ClientID, responseMessage.ToString(), UpdateCrlfCount);
}
else
{
// No processes defined in the service to be displayed.
UpdateStatus(requestInfo.Sender.ClientID, string.Format("No processes are defined in {0}.", Name), UpdateCrlfCount);
}
}
else
{
// We enumerate "system" processes when -system parameter is specified
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("Processes running on {0}:", Environment.MachineName);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("ID".PadRight(5));
responseMessage.Append(' ');
responseMessage.Append("Name".PadRight(25));
responseMessage.Append(' ');
responseMessage.Append("Priority".PadRight(15));
responseMessage.Append(' ');
responseMessage.Append("Responding".PadRight(10));
responseMessage.Append(' ');
responseMessage.Append("Start Time".PadRight(20));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 5));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 25));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 15));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 10));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 20));
foreach (Process process in Process.GetProcesses())
{
try
{
responseMessage.Append(process.StartInfo.UserName);
responseMessage.AppendLine();
responseMessage.Append(process.Id.ToString().PadRight(5));
responseMessage.Append(' ');
responseMessage.Append(process.ProcessName.PadRight(25));
responseMessage.Append(' ');
responseMessage.Append(process.PriorityClass.ToString().PadRight(15));
responseMessage.Append(' ');
responseMessage.Append((process.Responding ? "Yes" : "No").PadRight(10));
responseMessage.Append(' ');
responseMessage.Append(process.StartTime.ToString("MM/dd/yy hh:mm:ss tt").PadRight(20));
}
catch
{
}
}
UpdateStatus(requestInfo.Sender.ClientID, responseMessage.ToString(), UpdateCrlfCount);
}
}
}
private void UnscheduleProcess(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest || requestInfo.Request.Arguments.OrderedArgCount < 1)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Unschedules a scheduled process defined in the service.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Unschedule \"Process Name\" -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -save".PadRight(20));
helpMessage.Append("Saves all process schedules to the config file");
helpMessage.AppendLine();
helpMessage.Append(" -list".PadRight(20));
helpMessage.Append("Displays list of all process schedules");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
string processName = requestInfo.Request.Arguments["orderedarg1"];
bool saveSchedules = requestInfo.Request.Arguments.Exists("save");
bool listSchedules = requestInfo.Request.Arguments.Exists("list");
Schedule scheduleToRemove = m_scheduler.GetSchedule(processName);
if (scheduleToRemove != null)
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Attempting to unschedule process \"{0}\"...", processName), UpdateCrlfCount);
m_scheduler.Schedules.Remove(scheduleToRemove);
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Successfully unscheduled process \"{0}\".", processName), UpdateCrlfCount);
if (saveSchedules)
{
requestInfo.Request = ClientRequest.Parse("SaveSchedules");
SaveSchedules(requestInfo);
}
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("Failed to unschedule process \"{0}\". Process is not scheduled.", null), UpdateCrlfCount);
}
if (listSchedules)
{
requestInfo.Request = ClientRequest.Parse("Schedules");
ShowSchedules(requestInfo);
}
}
}
private void ShowSchedules(ClientRequestInfo requestInfo)
{
if (requestInfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Displays a list of schedules for processes defined in the service.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Schedules -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
UpdateStatus(requestInfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
if (m_scheduler.Schedules.Count > 0)
{
// Display info about all the process schedules defined in the service.
StringBuilder responseMessage = new StringBuilder();
responseMessage.AppendFormat("Process schedules defined in {0}:", Name);
responseMessage.AppendLine();
responseMessage.AppendLine();
responseMessage.Append("Name".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("Rule".PadRight(20));
responseMessage.Append(' ');
responseMessage.Append("Last Due".PadRight(30));
responseMessage.AppendLine();
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 20));
responseMessage.Append(' ');
responseMessage.Append(new string('-', 30));
foreach (Schedule schedule in m_scheduler.Schedules)
{
responseMessage.AppendLine();
responseMessage.Append(schedule.Name.PadRight(20));
responseMessage.Append(' ');
responseMessage.Append(schedule.Rule.PadRight(20));
responseMessage.Append(' ');
if (schedule.LastDueAt != DateTime.MinValue)
responseMessage.Append(schedule.LastDueAt.ToString().PadRight(30));
else
responseMessage.Append("[Never]".PadRight(30));
}
UpdateStatus(requestInfo.Sender.ClientID, responseMessage.ToString(), UpdateCrlfCount);
}
else
{
UpdateStatus(requestInfo.Sender.ClientID, string.Format("No process schedules are defined in {0}.", Name), UpdateCrlfCount);
}
}
}
private void RemoteCommandSession(ClientRequestInfo requestinfo)
{
if (m_remoteCommandProcess == null && requestinfo.Request.Arguments.ContainsHelpRequest)
{
StringBuilder helpMessage = new StringBuilder();
helpMessage.Append("Allows for a telnet-like remote command session.");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Usage:");
helpMessage.AppendLine();
helpMessage.Append(" Command -options");
helpMessage.AppendLine();
helpMessage.AppendLine();
helpMessage.Append(" Options:");
helpMessage.AppendLine();
helpMessage.Append(" -".PadRight(20));
helpMessage.Append("Displays this help message");
helpMessage.AppendLine();
helpMessage.Append(" -connect".PadRight(20));
helpMessage.Append("Established a remote command session");
helpMessage.AppendLine();
helpMessage.Append(" -disconnect".PadRight(20));
helpMessage.Append("Terminates established remote command session");
helpMessage.AppendLine();
helpMessage.Append(" -password=\"Command Session Password\"".PadRight(20));
helpMessage.Append("Password required to establish a remote command session");
UpdateStatus(requestinfo.Sender.ClientID, helpMessage.ToString(), UpdateCrlfCount);
}
else
{
bool connectSession = requestinfo.Request.Arguments.Exists("connect");
bool disconnectSession = requestinfo.Request.Arguments.Exists("disconnect");
bool passwordProvided = requestinfo.Request.Arguments.Exists("password");
if (string.Compare(requestinfo.Request.Command, "Command", true) == 0 && m_remoteCommandProcess == null && connectSession && passwordProvided)
{
// User wants to establish a remote command session.
string password = requestinfo.Request.Arguments["password"];
if (password == m_pursip)
{
// Establish remote command session
m_remoteCommandProcess = new Process();
m_remoteCommandProcess.ErrorDataReceived += m_remoteCommandProcess_ErrorDataReceived;
m_remoteCommandProcess.OutputDataReceived += m_remoteCommandProcess_OutputDataReceived;
m_remoteCommandProcess.StartInfo.FileName = "cmd.exe";
m_remoteCommandProcess.StartInfo.UseShellExecute = false;
m_remoteCommandProcess.StartInfo.RedirectStandardInput = true;
m_remoteCommandProcess.StartInfo.RedirectStandardOutput = true;
m_remoteCommandProcess.StartInfo.RedirectStandardError = true;
m_remoteCommandProcess.Start();
m_remoteCommandProcess.BeginOutputReadLine();
m_remoteCommandProcess.BeginErrorReadLine();
m_remoteCommandClientID = requestinfo.Sender.ClientID;
UpdateStatus(requestinfo.Sender.ClientID, "Remote command session established - all entry will now be redirected to command session.", UpdateCrlfCount);
SendResponse(requestinfo.Sender.ClientID, new ServiceResponse("CommandSession", "Established"));
}
else
{
UpdateStatus(requestinfo.Sender.ClientID, "Failed to establish remote command session - Password is invalid.", UpdateCrlfCount);
}
}
else if (string.Compare(requestinfo.Request.Command, "Command", true) == 0 && m_remoteCommandProcess != null && disconnectSession)
{
// User wants to terminate an established remote command session.
m_remoteCommandProcess.ErrorDataReceived -= m_remoteCommandProcess_ErrorDataReceived;
m_remoteCommandProcess.OutputDataReceived -= m_remoteCommandProcess_OutputDataReceived;
if (!m_remoteCommandProcess.HasExited)
m_remoteCommandProcess.Kill();
m_remoteCommandProcess.Dispose();
m_remoteCommandProcess = null;
m_remoteCommandClientID = Guid.Empty;
UpdateStatus(requestinfo.Sender.ClientID, "Remote command session terminated - all entry will now be redirected back to service session.", UpdateCrlfCount);
SendResponse(requestinfo.Sender.ClientID, new ServiceResponse("CommandSession", "Terminated"));
}
else if (m_remoteCommandProcess != null)
{
// User has entered commands that must be redirected to the established command session.
string input = requestinfo.Request.Command + " " + requestinfo.Request.Arguments.ToString();
m_remoteCommandProcess.StandardInput.WriteLine(input);
}
else
{
// User has provided insufficient information.
requestinfo.Request = ClientRequest.Parse("Command /");
RemoteCommandSession(requestinfo);
}
}
}
private void RemotingServer_ReceiveClientDataComplete(object sender, EventArgs<Guid, byte[], int> e)
{
// Set thread principal to current windows principal.
Thread.CurrentPrincipal = new WindowsPrincipal(WindowsIdentity.GetCurrent());
ClientInfo requestSender = FindConnectedClient(e.Argument1);
if (requestSender == null)
{
// First message from a remote client should be its info.
ClientInfo client = null;
Serialization.TryGetObject<ClientInfo>(e.Argument2.BlockCopy(0, e.Argument3), out client);
try
{
if (client != null)
{
client.ClientID = e.Argument1;
client.ConnectedAt = DateTime.Now;
// Engage security for the remote client connection if configured.
if (!m_secureRemoteInteractions || (m_secureRemoteInteractions && VerifySecurity(client)))
{
lock (m_remoteClients)
{
m_remoteClients.Add(client);
}
SendAuthenticationSuccessResponse(client.ClientID);
UpdateStatus(UpdateType.Information, "Remote client connected - {0} from {1}.\r\n\r\n", client.ClientUser.Identity.Name, client.MachineName);
}
else
{
throw new SecurityException(string.Format("Authentication failed for user '{0}'", Thread.CurrentPrincipal.Identity.Name));
}
}
else
{
// Required client information is missing.
throw new SecurityException("Remote client failed to transmit the required information");
}
}
catch (Exception ex)
{
try
{
SendResponse(e.Argument1, new ServiceResponse("AuthenticationFailure"));
m_remotingServer.DisconnectOne(e.Argument1);
UpdateStatus(UpdateType.Warning, "Remote client connection rejected - {0} from {1}.\r\n\r\n", client.ClientUser.Identity.Name, client.MachineName);
m_errorLogger.Log(ex);
}
catch
{
}
}
}
else
{
// All subsequest messages from a remote client would be requests.
ClientRequest request = null;
Serialization.TryGetObject<ClientRequest>(e.Argument2.BlockCopy(0, e.Argument3), out request);
if (request != null)
{
try
{
ClientRequestInfo requestInfo = new ClientRequestInfo(requestSender, request);
if (m_remoteCommandClientID == Guid.Empty)
{
// Process incoming requests when remote command session is not in progress.
lock (m_clientRequestHistory)
{
m_clientRequestHistory.Add(requestInfo);
if (m_clientRequestHistory.Count > m_requestHistoryLimit)
m_clientRequestHistory.RemoveRange(0, (m_clientRequestHistory.Count - m_requestHistoryLimit));
}
// Check if remote client has permission to invoke the requested command.
if (m_secureRemoteInteractions && VerifySecurity(requestInfo.Sender) &&
SecurityProviderUtility.IsResourceSecurable(requestInfo.Request.Command) &&
!SecurityProviderUtility.IsResourceAccessible(requestInfo.Request.Command))
throw new SecurityException(string.Format("Access to '{0}' is denied", requestInfo.Request.Command));
// Notify the consumer about the incoming request from client.
OnReceivedClientRequest(request, requestSender);
ClientRequestHandler requestHandler = FindClientRequestHandler(request.Command);
if (requestHandler != null)
{
// Request handler exists.
requestHandler.HandlerMethod(requestInfo);
}
else
{
// No request handler exists.
throw new InvalidOperationException("Request is not supported");
}
}
else if (requestSender.ClientID == m_remoteCommandClientID)
{
// Redirect requests to remote command session if requests are from its originator.
RemoteTelnetSession(requestInfo);
}
else
{
// Reject all request from other clients since remote command session is in progress.
throw new InvalidOperationException("Remote telnet session is in progress");
}
}
catch (Exception ex)
{
m_errorLogger.Log(ex);
UpdateStatus(requestSender.ClientID, UpdateType.Alarm, "Failed to process request \"{0}\" - {1}.\r\n\r\n", request.Command, ex.Message);
}
}
else
{
UpdateStatus(requestSender.ClientID, UpdateType.Alarm, "Failed to process request - Request could not be deserialized.\r\n\r\n");
}
}
}