I am trying to run a jar in C# by running this code:
System.Diagnostics.ProcessStartInfo processInfo = new System.Diagnostics.ProcessStartInfo(pathForjre+"java.exe", "-jar "+jar+" "+argsforjar);
processInfo.CreateNoWindow = true;
processInfo.UseShellExecute = false;
System.Diagnostics.Process proc = new System.Diagnostics.Process();
proc.StartInfo = processInfo;
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.RedirectStandardError = false;
string out = "";
proc.Start();
proc.WaitForExit();
while (!proc.StandardOutput.EndOfStream)
out += proc.StandardOutput.ReadLine();
proc.Close();
return out;
When the jar runs I get an access denied exception with the path the jar is trying to write the log file to. I can manually run the jar from the command line and the log file writes no problem. How do I give the process permission to do things like write a file?
ASP.NET apps by default don't impersonate the identity of the user that is hitting the site. Typically then run as the local Network Service account unless you specifically have the process run under a different identity (you can determine the identity it's using by looking at Environment.UserName).
You can either set up the site (or use impersonation) to run under an identity that has permission to write to that location, or give write permision to the account that it's currently using.
Setting the working directory of the process resolved the issue.
proc.StartInfo.WorkingDirectory = path;
Related
I am calling an exe program, when invoked requires inputfile.txt and its generates outputfile.txt in same folder. exe is working fine.
Now I want to convert same thing in web application but there I am getting issues.
Code I am using is as below
// Prepare the process to run
ProcessStartInfo start = new ProcessStartInfo();
// Enter in the command line arguments, everything you would enter after the executable name itself
start.Arguments = #"C:\Program Files\AET_Calculator\application\InputFile.txt"; ;
// Enter the executable to run, including the complete path
start.FileName = #"C:\Program Files\AET_Calculator\application\AET_Calculator.exe";
// Do you want to show a console window?
start.WindowStyle = ProcessWindowStyle.Hidden;
start.Verb = "runas";
start.UseShellExecute = true;
int exitCode;
// Run the external process & wait for it to finish
using (Process proc = Process.Start(start))
{
proc.WaitForExit();
// Retrieve the app's exit code
exitCode = proc.ExitCode;
}
Its throwing error. How can I call exe from web application passing input txt file
Here is error I am getting :
You need to grant execute access on the .exe file to the user in IIS is going to use to access the file, most of the time app pool identity or in IIS the IIS_WPG user.
I have c# web application project in which i want to install user uploaded .ttf font files into system.
I am using FontReg for the same. We can execute by using command line parameters as D:\TFS\Dev\Sprint_18_III\UI\Web\FontFiles>FontReg /copy so it will install all .ttf files present in directory
same this i am trying to achieve in c# code
using (Process process = new Process())
{
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.Verb = "runas";
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
startInfo.FileName = "D:\\TFS\\Dev\\Sprint_18_III\\UI\\Web\\FontFiles\\FontReg.exe";
startInfo.Arguments = "/copy";
process.StartInfo = startInfo;
process.Start();
process.WaitForExit();
}
Process gets completed but font doesn't install. What i am missing here ?
I dont want to give admin rights to entire web application running. It should be specific to one method only.
I believe that you are running the program with a under-privileged user... the IIS user, by default is "Network Authority", and this account cannot perform changes in the windows directory... try running this with a admin account...
Want to execute a exe within Application directory, in Dev system it works fine. In IIS, it is not executed, I have tried below points:
set default application pool to local system
set defualtpool, NETWORK_SERVICE, Everyone access to exe
Enabled 32 bit application to application pool
Server Version : Windows Server 2012
IIS Version: IIS 8.0
Below is my code
p.StartInfo = new ProcessStartInfo();
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.FileName = System.AppDomain.CurrentDomain.BaseDirectory.ToString() + "wkhtmltopdf\\wkhtmltopdf.exe";
string arg1 = "";
arg1 = "www.google.com" + " test.pdf";
p.StartInfo.Arguments = arg1;
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
p.StartInfo.CreateNoWindow = true;
p.Start();
p.WaitForExit(60000);
p.Close();
p.Dispose();
Make sure that the location at which your pdf file is getting generated "everyone has access to it"
it seems you are trying to convert html data to pdf file on your iis server. Make sure IIS server can access the site which your are trying to convert "Check if you can access those site using IE on your IIS server as there could be proxy issues"
Consider to set the working path of your exe:
p.StartInfo.WorkingDirectory = System.AppDomain.CurrentDomain.BaseDirectory.ToString() + "wkhtmltopdf";
Also check task manager if the exe is in memory.
Sometimes when a batch got a low level error open a prompt, and IIS do not capture it, so the process is freezed in memory.
Consider also the set a log in the exe in order to understand what goes wrong.
I had similar problem. Solved moving the exe in another folder outside IIS application. This folder should have execution rights.
I've got an aps.net site. Can I start a print request for a pdf from a client to a printer connected only to the server?
In my server I use this code in a web api
[HttpPost]
public void Print()
{
ProcessStartInfo info = new ProcessStartInfo();
info.Verb = "print";
info.FileName = #"C:\Users\Me\Documents\Doc.pdf";
info.CreateNoWindow = true;
info.WindowStyle = ProcessWindowStyle.Hidden;
Process p = new Process();
p.StartInfo = info;
p.Start();
}
If I run this request while debugging it works (i mean it prints the doc correctly), but if I start the request with with postman from a virtual machine (to simulate a network request) and debug the process attached to a IIS site no error will rise but no print done. The debug steps correctly all the instructions.
I set my application pool with my user identity (admin) and "connect as" on the site as well as my user.
I don't know if It can't be done cause on ASP.NET or cause I'm missing something.
This will do. I print with foxit reader. Maybe my default, Acrobat, have some isseus or asking for user interaction.
SHORT VERSION
How do you figure out which DLL is failing to load (and potentially why) when a process exits with error code -1073741502?
LONG VERSION
I'm trying to write a pretxnchangegroup hook for Mercurial, and as a part of that hook I need to get the output of running the command:
hg log
The code that I'm using to start and run the hg.exe process is as follows:
string Command = "log";
Process p = new Process();
ProcessStartInfo psi = p.StartInfo;
p.StartInfo.FileName = #"C:\Program Files (x86)\Mercurial\hg.exe";
psi.CreateNoWindow = true;
psi.LoadUserProfile = true;
psi.RedirectStandardError = true;
psi.RedirectStandardOutput = true;
psi.UseShellExecute = false;
psi.WorkingDirectory = Environment.CurrentDirectory;
p.StartInfo.Arguments = Command;
// Pass-through environment variables
psi.UserName = Properties.Settings.Default.HG_User;
psi.Domain = Properties.Settings.Default.HG_Domain;
psi.Password = new System.Security.SecureString();
foreach (char c in Properties.Settings.Default.HG_Pass)
{
psi.Password.AppendChar(c);
}
p.Start();
p.WaitForExit();
The problem is that the process keeps exiting with error code -1073741502, without outputting anything on Standard Output or Standard Error. After some research online, I discovered that this error code has something to do with the application failing to initialize properly (couldn't find DLL's, maybe?), but I have no idea how to go about figuring out how to fix it.
Keep in mind that this hook is being called for when I'm pushing to the repository over the web (so, IIS is calling the Mercurial CGI via Python, which has this program configured as a hook).
In a totally different web application, I'm able to run HG commands just fine, and I'm also able to run this by doing
runas /user:<same account as in the code> /noprofile cmd.exe and then manually typing in the hg command line.
Also, if I set UseShellExecute = true, then it executes just fine, but then I can't get the Standard Output. I'm really tempted to just make a web service call to the web app which is able to execute this command successfully, but that'd be a really ugly solution.
Any ideas why this thing isn't executing?
I was able to resolve this by disabling UAC so it sounds like a permissions problem even though I do not know the exact details.