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Fail to execute a specific cmd batch file in C#

I'm using Process to execute a batch file which will generate certificate file.
The code works great when I execute other file (which contains openssl command). But when I execute a file which contains keytool command, it executed, but no file was generated.
I've:
Set UseShellExecute true.
Set WaitForExit(-1) and find the return was true, so it did executed.
I clicked that batch file manually, and the file generates right away, so the command was fine :(
BTW I'm using .Net Core MVC.
I can't find any error code anywhere, so I'm at my wits' end now.
Does anyone has a clue? Any help would be very appriciated!
success code(openssl):
I generate a p12 file (a certificate format) in that folder first, and it works fine.
private string Gen_P12(string domain, string pwd)
{
//generate folder
string folder = #"D:\Temp\";
if (!Directory.Exists(folder))
Directory.CreateDirectory(folder);
//generate bat(p12)
string bat = "openssl.exe pkcs12 -export -inkey " + domain + ".key -in " + domain + ".cer -out " + domain + ".p12 -password pass:" + pwd +"\r\n";
//download in folder
var path = Path.Combine(folder, domain + "_P12.bat");
using (FileStream fs = System.IO.File.Create(path))
{
byte[] content = new UTF8Encoding(true).GetBytes(bat);
fs.Write(content, 0, content.Length);
}
Thread.Sleep(500);
//execute
ProcessStartInfo myBat = new ProcessStartInfo();
string name = domain + "_P12.bat";
myBat.FileName = name;
myBat.WorkingDirectory = folder;
myBat.UseShellExecute = true;
//Process.Start(myBat);
Process p = Process.Start(myBat);
p.WaitForExit(-1);
return folder;
}
fail code(keytool):
Trying to use that P12 file and keytool command to generate a keystore (also a certificate format) but fail.
private string Gen_KS(string domain, string folder, string CA_domain, byte[] cer, string pwd)
{
//generate bat
string bat = "keytool -importkeystore -srckeystore " + domain + ".p12 -srcstoretype PKCS12 -srcstorepass " + pwd + " -destkeystore " + domain + ".keystore -storepass " + pwd + "\r\n";
var path = Path.Combine(folder, domain + "_KS.bat");
using (FileStream fs = System.IO.File.Create(path))
{
byte[] content = new UTF8Encoding(true).GetBytes(bat);
fs.Write(content, 0, content.Length);
}
Thread.Sleep(700);
//execute
ProcessStartInfo myBat = new ProcessStartInfo();
myBat.WorkingDirectory = folder;
string name = domain + "_KS.bat";
myBat.FileName = name;
myBat.UseShellExecute = true;
Process p = Process.Start(myBat);
var a = p.WaitForExit(-1);
string route = folder + domain + ".keystore";
return route;
}
Thanks!

Thanks to #user9938, I solved the problem!
1. Brief conclusion:
I need to process the bat as administrator.
(And I still don't get why only do the keytool command needs administrator rights)
2. Find the errors: (How to apply StanderError when UseShellExecute=true)
In fact we don't have to set it true to execute commands.
Try this (replace execute section):
Process process = new Process();
try
{
process.StartInfo.UseShellExecute = false;
process.StartInfo.CreateNoWindow = true;
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.FileName = "cmd.exe";
process.Start();
process.StandardInput.WriteLine(bat); //command string, not the bat file
process.StandardInput.AutoFlush = true;
process.StandardInput.WriteLine("exit");
StreamReader reader = process.StandardError;
string curLine = reader.ReadLine();
reader.Close();
process.WaitForExit();
process.Close();
}catch (Exception e){}
Check the value of curLine through Breakpoints, the error message was: "'keytool' is not recognized as an internal or external command, operable program or batch file".
3. How to solve it:
Just set the Verb attribute as "runas".
//execute
ProcessStartInfo myBat = new ProcessStartInfo();
myBat.WorkingDirectory = folder;
string name = domain + "_KS.bat";
myBat.Verb = "runas";
myBat.FileName = name;
myBat.UseShellExecute = true;
Process p = Process.Start(myBat);
var a = p.WaitForExit(-1);
Done! Thank you user9938<3

C# StreamWrite to Process not executing on flush

I'm executing a jar file from a c# process. This is how I start the process and redirect the Input & Output. Problem indicated at the bottom!
Process process = new Process();
process.EnableRaisingEvents = false;
if (isLinux)
{
process.StartInfo.WorkingDirectory = Directory.GetCurrentDirectory() + "/Servers/" + server.ServerLocation + "/";
}
else
{
process.StartInfo.WorkingDirectory = Directory.GetCurrentDirectory() + "\\Servers\\" + server.ServerLocation + "\\";
}
process.StartInfo.FileName = "java";
process.StartInfo.Arguments = "-Xms" + server.AllocatedRam + "M -Xmx" + server.AllocatedRam + "M -jar " + '"' + path + '"';
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.CreateNoWindow = true;
LogController.Notice("Server Starting", server.Name);
proc = process;
process.Start();
if (Write.ContainsKey(server.ID))
{
Write.Remove(server.ID);
Write.Add(server.ID, process.StandardInput);
}
else
{
Write.Add(server.ID, process.StandardInput);
}
if (Output.ContainsKey(server.ID))
{
Output.Remove(server.ID);
Output.Add(server.ID, process.StandardOutput);
}
else
{
Output.Add(server.ID, process.StandardOutput);
}
Dictionaries
public static Dictionary<string, StreamWriter> Write = new Dictionary<string, StreamWriter>();
public static Dictionary<string, StreamReader> Output = new Dictionary<string, StreamReader>();
Executing command without closing writer
StreamWriter w = ServerController.Write[ID];
w.Write(Command.command);
w.Flush();
^ Flushing this will not execute the write. If I dispose the writer then I cannot execute more than 1 command. The writer has to always be open for writes and be able to execute the write but flushing does not work.

Print a document passing arguments to Process

I'm working on sending documents to a specific printer, in this case the "Microsoft to PDF" one.
Everything work fine except that a prompt comes up asking for the folder where to save the pdf and its name.
Process printJob = new Process();
printJob.StartInfo.FileName = pathToFile;
printJob.StartInfo.UseShellExecute = true;
printJob.StartInfo.Verb = "printto";
printJob.StartInfo.CreateNoWindow = true;
printJob.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
printJob.StartInfo.Arguments = "\"" + pdfPrinter + "\"";
printJob.StartInfo.WorkingDirectory = Path.GetDirectoryName(destinationPath);
printJob.Start();
Is there a way to pass any paramenter to printJob.StartInfo.Arguments such destination path and filename and avoid the prompt?

.NET webservice attemp to print on a network printer not working

I am working on a c# web service using .net framwork 4.0
and I have a file (print.exe) which executes printing, the file works when I double click it manually, it prints, but when using the webservice it give an error that No printer installed.
this the code of the webmethod:
[WebMethod]
public String Print_In_Kitchen(Int32 OrderID, String Lang)
{
System.Security.SecureString secPass = new System.Security.SecureString();
string paswd = "96321";
for (int i = 0; i < paswd.Length; i++)
{
secPass.AppendChar(paswd[i]);
}
Process proc = new Process();
proc.StartInfo.FileName = #"C:\EXE_Print.exe";
proc.StartInfo.Arguments = #"" + OrderID + " " + Lang + " " + "\"" + ConfigurationManager.ConnectionStrings["constr"].ConnectionString + "\"";
proc.StartInfo.UserName = "omar";
proc.StartInfo.Password = secPass;
proc.StartInfo.Domain = "Futec";
proc.StartInfo.Verb = "runas";
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.Verb = "runas";
proc.StartInfo.RedirectStandardInput = true;
proc.Start();
string s = proc.StandardOutput.ReadToEnd();
proc.WaitForExit();
return s;
}
I have searched for a solution but haven't found any useful link or explanation for this, saw this question here but with no answer:pdf print through .net process
and I am new to .NET

My gut feeling is that the User that the Service is running as, doesn't have access to that printer.
You could try changing StartInfo.UseShellExecute to true but I would also check the permissions of your services user.

How to call ffmpeg.exe to convert audio files on Windows Azure?

I run a Web Role on Windows Azure to receive AAC audio files (uploaded by base64 string) and store them into blob. it works fine by now.
Next, I also have to convert them into MP3 and store the MP3s into blob too. I decided to use something like ffmpeg.exe -i path.aac path.mp3.
The problems are that:
How to call external ffmpeg.exe inside a web service of a web role?
what would be the path?
Please help me if you know. Thank you in advance.

I suggest that you use a Local Storage Resource for your webrole where you can download the AAC files from the blob storage, and have them converted to MP3. Then upload back to blob storage.
Side note is that you can also use the Path.GetTempFileName() to get a temporary file name for your AAC / MP3 files, but I don't encourage to do so (even if I've done it before).
As for the actuall ffmpeg running, you might want to browse the code for AzureVideoConv, which I've built some time ago. You will find a lot of useful code there.
Here is a sample of the actual ffmpeg call (note that I download the exe from a blob storage, to avoid bloating my azure package with external exe files, and to easily update the ffmpeg.exe when required):
internal void ConvertFile(string inputFileName, Guid taskID)
{
string tmpName = string.Format(
"{0}\\{1}.flv",
Path.GetTempPath(), inputFileName.Substring(inputFileName.LastIndexOf("\\")+1));
ProcessStartInfo psi = new ProcessStartInfo();
psi.FileName = this._processorExecutable;
psi.Arguments = string.Format(#"-i ""{0}"" -y ""{1}""", inputFileName, tmpName);
psi.CreateNoWindow = true;
psi.ErrorDialog = false;
psi.UseShellExecute = false;
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.RedirectStandardOutput = true;
psi.RedirectStandardInput = false;
psi.RedirectStandardError = true;
try
{
// Start the process with the info we specified.
// Call WaitForExit and then the using statement will close.
using (Process exeProcess = Process.Start(psi))
{
exeProcess.PriorityClass = ProcessPriorityClass.High;
string outString = string.Empty;
// use ansynchronous reading for at least one of the streams
// to avoid deadlock
exeProcess.OutputDataReceived += (s, e) => {
outString += e.Data;
};
exeProcess.BeginOutputReadLine();
// now read the StandardError stream to the end
// this will cause our main thread to wait for the
// stream to close (which is when ffmpeg quits)
string errString = exeProcess.StandardError.ReadToEnd();
Trace.WriteLine(outString);
Trace.TraceError(errString);
byte[] fileBytes = File.ReadAllBytes(tmpName);
if (fileBytes.Length > 0)
{
this._sSystem.SaveOutputFile(
fileBytes,
tmpName.Substring(tmpName.LastIndexOf("\\")+1),
taskID
);
}
}
}
catch (Exception e)
{
Trace.TraceError(e.Message);
}
}
NOTE the last check in of the project is using Windows Azure SDK 1.3

Thank you a lot #astaykov. You did a good job. Though It's not specific for my case(I need a specific piece of code instead of a whole large project), but it really inspired me. For specifying into my case, I am going to answer this question by my own - note that I did this based on #astaykov's code with somewhere directly copy&paste.
Firstly, configure the role with a Local Storage Resource. Then get its path by these code:
LocalResource converter_path =
RoleEnvironment.GetLocalResource("AudioConvertSpace");
string rootPathName = converter_path.RootPath;
get the path of ffmpeg.exe, xxx.aac and xxx.mp3 in the local storage:
string aac_path = rootPathName + "\\" + "fmwa-" + guidguid + ".aac";
string mp3_path = rootPathName + "\\" + "fmwa-" + guidguid + ".mp3";
string exe_path = rootPathName + "\\" + "ffmpeg.exe";
write the .aac file to local storage:
System.IO.File.WriteAllBytes(aac_path, decoded_audio_byte_array);
keep in mind that the local storage is not guaranteed to be stable or durable, so check the existence of the ffmpeg.exe -- if it doesn't exist, download it from blob.
if (System.IO.File.Exists(exe_path) == false)
{
var exeblob = _BlobContainer.GetBlobReference("ffmpeg.exe");
exeblob.DownloadToFile(exe_path, null);
}
initial and run the ffmpeg.exe process:
ProcessStartInfo psi = new ProcessStartInfo();
psi.FileName = exe_path;
psi.Arguments = string.Format(#"-i ""{0}"" -y ""{1}""",
aac_path, mp3_path);
psi.CreateNoWindow = true;
psi.ErrorDialog = false;
psi.UseShellExecute = false;
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.RedirectStandardOutput = true;
psi.RedirectStandardInput = false;
psi.RedirectStandardError = true;
Process exeProcess = Process.Start(psi);
exeProcess.PriorityClass = ProcessPriorityClass.High;
string outString = string.Empty;
exeProcess.OutputDataReceived += (s, e) => {
outString += e.Data;
};
exeProcess.BeginOutputReadLine();
string errString = exeProcess.StandardError.ReadToEnd();
Trace.WriteLine(outString);
Trace.TraceError(errString);
exeProcess.WaitForExit();
upload the output of ffmpeg.exe into the blob storage:
byte[] mp3_audio_byte_array = System.IO.File.ReadAllBytes(mp3_path);
var mp3blob = _BlobContainer.GetBlobReference("fmwa-"+guidguid+".mp3");
mp3blob.Properties.ContentType = "audio/mp3";
mp3blob.UploadByteArray(mp3_audio_byte_array);
clean the temp files:
System.IO.File.Delete(aac_path);
System.IO.File.Delete(mp3_path);