Develop Reference

C# ScrapySharp 'System.Net.CookieException: 'The 'Name'='HttpOnly, NID' part of the cookie is invalid.'

So i'm facing an unexpected issue with my code. For some reason, I am unable to download & print the links out of my Google search... Help is much appreciated as I'm really not sure what is going on here... I am also using the DotNET SDK
using System;
using System.Threading.Tasks;
using ScrapySharp;
using ScrapySharp.Extensions;
using ScrapySharp.Network;
using static System.Console;
namespace Test
{
class Program
{
static async Task Main(string[] args)
{
var query = "scrapysharp";
Console.WriteLine($"Searching '{query}' on google");
var browser = new ScrapingBrowser();
browser.UseDefaultCookiesParser = false;
var resultsPage = await browser.NavigateToPageAsync(new Uri($"https://www.google.fr/search?q={query}"));
Console.WriteLine($"Results");
foreach (var link in resultsPage.Html.CssSelect("h3.r a"))
{
Console.WriteLine($"- {link.InnerText}");
}
}
}
Error:
System.Net.CookieException: 'The 'Name'='HttpOnly, NID' part of the cookie is invalid.'

I was facing the same issue, the quick workaround for me was bellow one line code.
browser.IgnoreCookies = true;
Leave everything else as is, add this line after the line where you are creating browser object and try it out.

c# Core System.Management.Automation remote connection error

I am attempting to write a C# core program to run powershell scripts on remote linux systems. Running on .net core is a requirement for this project. I am trying to loosely follow a guide I found on CodeProject.
This is my code:
using System;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
SSHConnectionInfo connectionInfo = new SSHConnectionInfo(userName: "user", computerName: "server", keyFilePath: "id_rsa");
using (Runspace runspace = RunspaceFactory.CreateRunspace(connectionInfo))
{
runspace.Open(); // The program errors out here
runspace.Close();
}
}
}
}
I have the "id_rsa" file located int the same folder as the program. I have verified that openssh for windows, powershell core 6.0.2, and .net core 2 SDK are installed and working. I am using the following nuget packages from the Microsoft Powershell Core repository: Microsoft.PowerShell.SDK (6.0.2) and Sytem.Managment.Automation (6.0.2)
This is the error I am receiving:
Unhandled Exception: System.Management.Automation.Remoting.PSRemotingDataStructureException: An error has occurred which PowerShell cannot handle. A remote session might have ended. ---> System.ArgumentException: The path is not of a legal form.
Parameter name: path
at System.IO.Path.GetDirectoryName(String path)
at System.Management.Automation.Runspaces.SSHConnectionInfo.StartSSHProcess(StreamWriter& stdInWriterVar, StreamReader& stdOutReaderVar, StreamReader& stdErrReaderVar)
at System.Management.Automation.Remoting.Client.SSHClientSessionTransportManager.CreateAsync()
at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerImpl.SendNegotiationAsync(RemoteSessionState sessionState)
at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerImpl.HandleStateChanged(Object sender, RemoteSessionStateEventArgs arg)
at System.Management.Automation.ExtensionMethods.SafeInvoke[T](EventHandler`1 eventHandler, Object sender, T eventArgs)
at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerStateMachine.RaiseStateMachineEvents()
at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerStateMachine.ProcessEvents()
--- End of inner exception stack trace ---
at System.Management.Automation.Runspaces.AsyncResult.EndInvoke()
at System.Management.Automation.Runspaces.Internal.RunspacePoolInternal.EndOpen(IAsyncResult asyncResult)
at System.Management.Automation.Runspaces.Internal.RemoteRunspacePoolInternal.Open()
at System.Management.Automation.RemoteRunspace.Open()
at ConsoleApp1.Program.Main(String[] args) in C:\ConsoleApp1\ConsoleApp1\Program.cs:line 18
Press any key to continue . . .
At this point I am not sure what I am missing.

I ended up opening an issue on github for this error. To work around this issue currently you will need to add the following code to your program until this issue gets resolved in a future version of powershell core (>6.0.4 or >6.1.0-rc.1). Here is the specific post regarding the issue.
if (System.Management.Automation.Runspaces.Runspace.DefaultRunspace == null)
{
var defaultRunspace = RunspaceFactory.CreateRunspace();
defaultRunspace.Open();
System.Management.Automation.Runspaces.Runspace.DefaultRunspace = defaultRunspace;
}

The following answer is derived from the Bruc3 work-around answer above and the RemoteRunspace Sample 01 from the Powershell SDK.
namespace Sample.PowerShell.Runspace
{
using System;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
/// <summary>
/// This class contains the Main enrty point for the application.
/// </summary>
internal class SshRemoteRunspace
{
public static void Main(string[] args)
{
SSHConnectionInfo sshConnectionInfo = new
SSHConnectionInfo("Administrator", "remote-hyper-v-server.mydomain.com", #"C:\Users\myself\.ssh\id_ed25519.pub");
// Bruc3 Workaround
if (System.Management.Automation.Runspaces.Runspace.DefaultRunspace is null)
{
var defaultRunspace = RunspaceFactory.CreateRunspace();
defaultRunspace.Open();
System.Management.Automation.Runspaces.Runspace.DefaultRunspace = defaultRunspace;
}
// Create a remote runspace using the connection information.
using (Runspace remoteRunspace = RunspaceFactory.CreateRunspace(sshConnectionInfo))
{
remoteRunspace.Open();
// Powershell command
using (PowerShell powershell = PowerShell.Create().AddCommand("Get-VMReplication"))
{
// makes the Powershell command run in the remote runspace instead of locally
powershell.Runspace = remoteRunspace;
// display the results in the local console
foreach (PSObject result in powershell.Invoke())
{
Console.WriteLine(result.ToString());
}
}
Console.WriteLine("Press 'Enter' to exit > ");
Console.ReadKey();
remoteRunspace.Close();
}
}
}
}

C#: How to use Service References in Visual Studio 2015 (Move from Linqpad)

I would like to migrate a C# Program to Visual Studio. I'm fairly new working with C#, however I could have learned some stuff in Linqpad.
In Linqpad I imported my dll as an additional Reference and could use it. The dll was generated with:
"wsdl http://localhost/WebService.asmx"
and
"csc /t:library WebService.cs"
Linqpad Code which worked was like:
WebService ws = new WebService();
void Main()
{
try
{
var connect = ws.Logon("localhost", Port, "", "username", "password);
var morefiles = false;
// do other stuff....
do
{
var results = ws.search(connect, "Culture", "Culture", searchCondition, morefiles);
} while (morefiles == true);
}
catch (Exception x)
{
Console.WriteLine(x.Message);
Console.WriteLine(x.StackTrace);
}
finally {
Console.WriteLine("Search done");
}
}
Now, I would like to use it in Visual Studio. In VS I imported it as a Service References with the given URL, and it showed me the necessary stuff.
Now when I try to use it in my code I get an error message which tells me:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Testproject.WebService;
namespace Testproject
{
class Program
{
static void Main(string[] args)
{
WebService ws = new WebService();
Console.WriteLine("Test");
Console.ReadKey();
}
}
}
The error message is in the line:
WebService ws = new WebService();
It shows me this error message:
WebService is a 'namespace' but is used like a 'type'
I also found out, that "Logon" which I used in Line 6 in Linqpad is in:
WebService.WebServiceSoap
However, if I change the line in:
WebService.WebServiceSoap ws = new WebService.WebServiceSoap();
I also get an error message:
Cannot create an instance of the abstract class or interface
I tried different combinations also, but I don't exactly no, what can be wrong. Can you help me?

Lucene.Net Query Error

I've just installed Solr/Lucene on a Windows machine simply to test its capability. I've indexed a couple hundred files and I'm able to successfully query the indexed content through the web interface. Given that the web interface isn't too user friendly I thought I'd try to create a simple application to do a full text search over the indexed content. So far I have:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using Lucene.Net;
namespace solrTest
{
class Program
{
static void Main(string[] args)
{
string indexFileLocation = #"C:\solr-5.3.1\server\solr\test\data\index";
Lucene.Net.Store.Directory dir = Lucene.Net.Store.FSDirectory.Open(indexFileLocation);
Lucene.Net.Search.IndexSearcher searcher = new Lucene.Net.Search.IndexSearcher(dir);
Lucene.Net.Index.Term searchTerm = new Lucene.Net.Index.Term("ID", "1");
Lucene.Net.Search.Query query = new Lucene.Net.Search.TermQuery(searchTerm);
Lucene.Net.Search.TopDocs results = searcher.Search(query, null, 10);
foreach(Lucene.Net.Search.ScoreDoc test in results.ScoreDocs)
{
Console.WriteLine(test.ToString());
Console.ReadLine();
}
}
}
}
When running the code I receive an error stating:
An unhandled exception of type 'System.IO.IOException' occurred in Lucene.Net.dll
Additional information: read past EOF
I know I'm missing something obvious. Your help would be greatly appreciated.
Edit: I downloaded Luke.Net and received the same error.

Running Python Script/application in Windows Phone 8

I want to run the Skeinforge slicer program written in Python inside my Windows Phone 8 C# application. I have determined that I should probably use IronPython to do this, I have already determined that I can run Skeinforge inside the ipy.exe terminal I got when I installed IronPython. My problem though is that I am struggling to figure out how to host and run a Python script with IronPython inside Windows Phone 8. I have also already managed to get a simple hello world script running inside a Desktop Windows Forms application that transfers the applications console output to the Debug console with the following code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Diagnostics;
using System.IO;
using IronPython.Hosting;
using Microsoft.Scripting.Hosting;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
DebugWriter debugW = new DebugWriter();
Console.SetOut(debugW);
}
private void button1_Click(object sender, EventArgs e)
{
TextWriter tw = new StreamWriter("Test.py");
tw.Write(scriptBox.Text);
tw.Close();
try
{
var ipy = Python.CreateRuntime();
dynamic test = ipy.UseFile("Test.py");
}
catch (Exception ex)
{
Debug.WriteLine("Error: " + ex.Message);
}
}
}
}
And this is the DebugWriter:
class DebugWriter : TextWriter
{
private StringBuilder content = new StringBuilder();
public DebugWriter()
{
Debug.WriteLine("Writing console to debug");
}
public override void Write(char value)
{
base.Write(value);
if (value == '\n')
{
Debug.WriteLine(content.ToString());
content = new StringBuilder();
}
else
{
content.Append(value);
}
}
public override Encoding Encoding
{
get { return System.Text.Encoding.UTF8; }
}
}
I have no idea how to even add the IronPython libraries to my Windows Phone 8 application though as the standard libraries won't import. I have though tried compiling the apparently now defunct Windows Phone 7 libraries with the master source code and I can import these libraries, but I get absolutely no response on the debug terminal when I try to run my hello world script.
Do any of you have any idea how to get this woring in Windows Phone 8, if you know how to do this in Windows 8/Metro/RT then that would also probably work for WP8.
UPDATE:
I have looked at the debug output again and I seem to get this error when trying to use the WP7 libraries to run a hello world script:
A first chance exception of type 'System.NotImplementedException' occurred in Microsoft.Scripting.DLL
Error: The method or operation is not implemented.

I managed to get Skeinforge running on a modified version of IPY. You can get the source for my application here: http://skeinforgewp8.codeplex.com/