/// <summary>
/// Starts a process or URI via the Windows shell.
/// </summary>
/// <param name="startInfo"></param>
/// <param name="callback"></param>
/// <returns></returns>
public static WardenProcess StartByShell(WardenStartInfo startInfo, Action <bool> callback = null)
{
if (!Initialized)
{
throw new WardenManageException(Resources.Exception_Not_Initialized);
}
if (string.IsNullOrWhiteSpace(startInfo.FileName))
{
throw new ArgumentException("fileName cannot be empty.");
}
if (startInfo.Track && string.IsNullOrWhiteSpace(startInfo.TargetFileName))
{
throw new ArgumentException("targetFileName cannot be empty.");
}
if (CheckForWardenProcess(startInfo.TargetFileName, out var existingProcess))
{
return(existingProcess);
}
if (string.IsNullOrWhiteSpace(startInfo.Arguments))
{
startInfo.Arguments = string.Empty;
}
var shellStartInfo = new ShellStartInfo(startInfo.FileName, startInfo.Arguments, startInfo.WorkingDirectory)
{
Verb = startInfo.RaisePrivileges ? "runas" : "open"
};
if (startInfo.Track)
{
var key = Guid.NewGuid();
var proc = new WardenProcess(System.IO.Path.GetFileNameWithoutExtension(startInfo.TargetFileName), GenerateProcessId(), startInfo.TargetFileName, ProcessState.Alive, startInfo.Arguments.SplitSpace(), startInfo.Filters)
{
FoundCallback = callback
};
if (ManagedProcesses.TryAdd(key, proc))
{
Api.StartByShell(shellStartInfo);
if (ManagedProcesses.TryGetValue(key, out var process))
{
return(process);
}
}
}
Api.StartByShell(shellStartInfo);
return(null);
}
/// <summary>
/// Launches a system URI and returns an empty Warden process set to Alive
/// This spawns an asynchronous loop that will execute a callback if the target process is found
/// However the function returns right away to ensure it does not block.
/// </summary>
/// <param name="startInfo"></param>
/// <param name="callback"></param>
/// <returns></returns>
public static WardenProcess StartUriDeferred(WardenStartInfo startInfo, Action <bool> callback)
{
if (!Initialized)
{
throw new WardenManageException(Resources.Exception_Not_Initialized);
}
if (string.IsNullOrWhiteSpace(startInfo.FileName))
{
throw new ArgumentException("fileName cannot be empty.");
}
if (string.IsNullOrWhiteSpace(startInfo.TargetFileName))
{
throw new ArgumentException("targetFileName cannot be empty.");
}
if (CheckForWardenProcess(startInfo.TargetFileName, out var existingProcess))
{
return(existingProcess);
}
if (string.IsNullOrWhiteSpace(startInfo.Arguments))
{
startInfo.Arguments = string.Empty;
}
//lets add it to the dictionary ahead of time in case our program launches faster than we can return
var key = Guid.NewGuid();
var warden = new WardenProcess(System.IO.Path.GetFileNameWithoutExtension(startInfo.TargetFileName),
GenerateProcessId(), startInfo.TargetFileName, ProcessState.Alive, startInfo.Arguments.SplitSpace(), startInfo.Filters)
{
FoundCallback = callback
};
if (ManagedProcesses.TryAdd(key, warden))
{
if (UriShell.LaunchUriDeferred(startInfo))
{
if (ManagedProcesses.TryGetValue(key, out var process))
{
return(process);
}
}
}
ManagedProcesses.TryRemove(key, out var failedProcess);
return(null);
}
/// <summary>
/// Checks if a process is currently running, if so we build the WardenProcess right away or fetch a monitored one.
/// </summary>
/// <param name="path"></param>
/// <param name="process"></param>
/// <returns></returns>
private static bool CheckForWardenProcess(string path, out WardenProcess process)
{
using (var runningProcess = GetProcess(path))
{
if (runningProcess == null)
{
process = null;
return(false);
}
foreach (var key in ManagedProcesses.Keys)
{
if (ManagedProcesses.TryGetValue(key, out process))
{
if (process.Id == runningProcess.Id)
{
return(true);
}
}
}
process = null;
return(false);
}
}