Starting new process from ASP.NET fails - asp.net

I'm trying to start a new process from my WCF Service. For that purpose I use
var process = Process.Start(
new ProcessStartInfo { WorkingDirectory = config.WorkingDirectory,
FileName = config.WorkingDirectory,
Arguments = string.Format("{0} {1}", mpcName, jobId),
CreateNoWindow = false,
WindowStyle = ProcessWindowStyle.Hidden });
The WebApp is using a separate AppDomain whose Identity is set to a user account having administrator rights on the server.
Process.Start throws an exception telling
Server execution failed, at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
I also tested setting user and password in ProcessStartInfo. Specifying the password was quite tricky (SecureString) and then I received
The stub received bad data, at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
so I skipped this way.
Do you know what is the reason for my problem and how I can fix it.
I forgot: I'm using Windows Server 2008 R2, IIS 7

I got it!
It's very strange but the only change needed was to invoke
Process.Start(exeFullPath, args);
Obviously the combination of ProcessStartInfo props is important.

This q/a helped me fix this issue in one of my projects, but different cause --
was trying to start process as a Domain user from an integration test being run by nCrunch. Turns out MY problem was a really long argument string.
(same argument string works with no user/password)
Environment is Windows 8, 64 bit.
Anyway, just gonna have to pass the arg data a different way.

Related

IIS using Microsoft.Web.Administration and commiting changes

goal
Change IIS bindings and swap virtual directories on a per request basis. A simple application will open, replace and commit, using the Microsoft.Web.Administration. Following is a simplified flow:
code
ServerManager = New ServerManager()
config = ServerManager.GetApplicationHostConfiguration()
SiteList = config.GetSection("system.applicationHost/sites")
SitesCollection = SiteList.GetCollection()
_site = SitesCollection.FirstOrDefault(Function(f) f.GetAttributeValue("name").ToString() = "XXX")
_bindings = _site.GetCollection("bindings")
_bind As ConfigurationElement = _bindings.CreateElement("binding")
_bind("protocol") = "http"
_bind("bindingInformation") = String.Format("*:80:{0}", "www.zzz.yyy")
_bindings.Add(_bind)
ServerManager.CommitChanges()
problem
This code run on an administrator authenticated web page, and before the call, the thread is impersonated to make sure the privileges are in place. I'm allowed to read the .config but not to write! I also confirmed that, before any call, the thread is running as Administrator. I also tried using a LocalService pool but again, no luck.
the error
Filename: \\?\C:\Windows\system32\inetsrv\config\applicationHost.config
Error: Cannot write configuration file due to insufficient permissions
hresult: 0x80070005
at Microsoft.Web.Administration.Interop.AppHostWritableAdminManager.CommitChanges()
After some checking and experiment I find out that the way to make it work was
Do not use authentication on the application.
Do not use impersonation.
LocalService does not work.
Run it on a pool with enough privileges (administrator)
Looks like using impersonation breaks it again.
This is NOT the setting I wanted but I think I can survive and move the app to this unsecure pool, work the changes and the move it back to a generic ApplicationPoolIdentity.

Using X509Certificate2 to get PrivateKey causes CryptographicException "Invalid provider type specified"

everyone,
I am developing a web application that uses X509Certificate2 to get a private key from a certification file. Code snippet looks like following:
public static RSACryptoServiceProvider GetSignProviderFromPfx()
{
var strFileName = "c:\cer\mycerfile.pfx";
var strPassword = "000000";
X509Certificate2 pc = new X509Certificate2(strFileName, strPassword, X509KeyStorageFlags.MachineKeySet);
var ThePivateKey = pc.PrivateKey;
return (RSACryptoServiceProvider)ThePivateKey;
}
But the statement pc.Privatekey causes a System.Security.Cryptography.CryptographicException "Invalid provider type specified" . I'm sure the certification file has no problem, it really has a private key. And the property pc.HasPrivateKey is also return true.
The test environment is VS2013, window 7.
I also tried following:
a. I debugged it in VS2013 with iis express, the problem occured.
b. I debugged it in another computer with same enviroment with mine, the problem occured too.
c. I published the application to a server with iis running on Windows Web Server 2008 R2, it worked fine.
d. I published the application to widows azure website, it also worked fine.
Therefore, I guess the code snippet has no problem. The key reason raising the exception is that there may be some problem about running environment. I checked and compared the reading/writing right on the certification file in different environment, all of them are same.
Anybody can help?
Thanks.
I have been having the same problem and this is what I did to solve it. Hopefully this will help you too.
We had to set Load User Profile to True in the app pools advanced settings
You can also set it in the web.config I believe.
https://blogs.msdn.microsoft.com/vijaysk/2009/03/08/iis-7-tip-3-you-can-now-load-the-user-profile-of-the-application-pool-identity/
may be it useful to you;
On local try:
X509Certificate2 pc = new X509Certificate2(strFileName, strPassword);

Directory.CreateDirectory failed on Remote Server

I am working on a small project, in asp.net mvc3, that would copy the deployment files from a local drive to a share drive on a window server 2008 R2 server. I am connected using WMI, and the connection is successful. However, I tried to create a folder, and I receive the message "Logon failure: unknown user name or bad password." Here is a sample code:
bool isConnected = false;
options.Username = user.Name.Trim();
options.Password = user.password.Trim();
mScope = new ManagementScope("\\\\xxx.xxx.xxx.xxx\\root\\cimv2", options);
mScope.Connect();
if (mScope.IsConnected == true)
{
//I've gotten to this point. Then, the code below throw the exception
Directory.CreateDirectory(#"\\\\xxx.xxx.xxx.xxx\Tester\shareFile.txt");
isConnected = true;
}
I'd like to know what am I doing? Is that the right way of doing it?
it is the correct way however it will be the current user you are trying to access that gets passed to the remote computer to create the directory. The management scope at this point has nothing to do with Directory.CreateDirectory. These are 2 different "worlds". you do give the creds to ManagementScope but this has no affect on Directory.CreateDirectory. you could use impersonation to do what you are wanting to:
How do you do Impersonation in .NET?
it is unclear though if you are doing this in ASP.NET/MVC or a different platform. your tags indicate ASP.NET MVC but not your main question.
remember, if you are using ASP.NET/MVC, the credentials of the app pool are being used to perform such actions.

Novell eDirectory with .NET DirectoryServices

In our company, we have a project which should use Novell eDirectory with .net applications.
I have tried Novell Api (http://www.novell.com/coolsolutions/feature/11204.html) to connect between .NET applications. It is working fine.
But, as per requirement, we specifically need .net API to connect not with Novell Api, which is not working. Connection and binding with .NET Api DirectoryServices not working.
Our Novell eDirectory is installed with following credentials:
IP address: 10.0.x.xx(witsxxx.companyname.com)
Tree : SXXXX
New Tree Context: WIxxxK01-NDS.OU=STATE.O=ORG
ADMIN Context is: ou=STATE,o=ORG
admin : admin
password: admin
I used Novell Api and used following code
String ldapHost ="10.0.x.xx";
String loginDN = "cn=admin,cn=WIxxxK01-NDS,OU=STATE,o=ORG";
String password = string.Empty;
String searchBase = "o=ORG";
String searchFilter = "(objectclass=*)";
Novell.Directory.Ldap.LdapConnection lc = new Novell.Directory.Ldap.LdapConnection();
try
{
// connect to the server
lc.Connect(ldapHost, LdapPort);
// bind to the server
lc.Bind(LdapVersion, loginDN, password);
}
This is binding correctly and searching can be done.
Now my issue is with when I trying to use .NET APi and to use System.DirectoryServices
or System.DirectoryServices.Protocols, it is not connecting or binding.
I can't even test the following DirectoryEntry.Exists method. It is going to exception.
string myADSPath = "LDAP://10.0.x.xx:636/OU=STATE,O=ORG";
// Determine whether the given path is correct for the DirectoryEntry.
if (DirectoryEntry.Exists(myADSPath))
{
Console.WriteLine("The path {0} is valid",myADSPath);
}
else
{
Console.WriteLine("The path {0} is invalid",myADSPath);
}
It is saying Server is not operational or Local error occurred etc. I don't know what is happening with directory path.
I tried
DirectoryEntry de = new DirectoryEntry("LDAP://10.0.x.xx:636/O=ORG,DC=witsxxx,DC=companyname,DC=com", "cn=admin,cn=WIxxxK01-NDS,o=ORG", "admin");
DirectorySearcher ds = new DirectorySearcher(de, "&(objectClass=user)");
var test = ds.FindAll();
All are going to exceptions.
Could you please help me to solve this? How should be the userDN for DirectoryEntry?
I used System.DirectoryServices.Protocols.LdapConnection too with LdapDirectoryIdentifier and System.Net.NetworkCredential but no result. Only same exceptions.
I appreciate your valuable time and help.
Thanks,
Binu
To diagnose your LDAP connection error, get access to the eDirectory server from the admins, and use iMonitor (serverIP:8028/nds and select Dstrace), in Dstrace clear all tabs and enable LDAP tracing, then do your bind see what happens on the LDAP side to see if there is a more descriptive error there. Or if you even get far enough to bind and make a connection.

How to use SharpSVN in ASP.NET?

Trying to use use SharpSVN in an ASP.NET app. So far, it's been nothing but trouble. First, I kept getting permission errors on "lock" files (that don't exist), even though NETWORK SERVICE has full permissions on the directories. Finally in frustration I just granted Everyone full control. Now I get a new error:
OPTIONS of 'https://server/svn/repo': authorization failed: Could not authenticate to server: rejected Basic challenge (https://server)
This happens whether I have the DefaultCredentials set below or not:
using (SvnClient client = new SvnClient())
{
//client.Authentication.DefaultCredentials = new System.Net.NetworkCredential("user", "password");
client.LoadConfiguration(#"C:\users\myuser\AppData\Roaming\Subversion");
SvnUpdateResult result;
client.Update(workingdir, out result);
}
Any clues? I wish there was SOME documentation with this library, as it seems so useful.
The user you need to grant permission is most likely the ASPNET user, as that's the user the ASP.NET code runs as by default.
ASPNET user is a local account, preferably youd'd want to run this code in an Impersonate block, using a network account set up for this specific reason

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