Develop Reference

C# MagnetLink to torrent file

I am going crazy right now. Since all other questions are several years old and the MonoTorrent developers have gone MIA I really need your help.
What I am really stuck with is parsing the magnet link and downloading it.
This is my code:
public static void DownloadTorrent(string magnetLink)
{
MagnetLink link = new MagnetLink(magnetLink);
//URL stores the magnetlink
EngineSettings settings = new EngineSettings();
settings.AllowedEncryption = EncryptionTypes.All;
settings.SavePath = destination;
string torrentFilePath = torrentDestination;
if (!Directory.Exists(settings.SavePath))
Directory.CreateDirectory(settings.SavePath);
if (!Directory.Exists(torrentFilePath))
Directory.CreateDirectory(torrentFilePath);
//Create a new engine, give it some settings and use it.
ClientEngine engine = new ClientEngine(settings);
engine.ChangeListenEndpoint(new IPEndPoint(IPAddress.Any, 6969));
TorrentManager manager = new TorrentManager(link, engine.Settings.SavePath, new TorrentSettings(), torrentFilePath);
engine.Register(manager);
manager.Start();
Console.ReadLine();
}
And my magnet link is: "magnet:?xt=urn:btih:c6df2f47d033d54b054cafe7ef683ba167222d92&dn=Windows+XP+Professional+SP3+-+Activated&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969&tr=udp%3A%2F%2Fzer0day.ch%3A1337&tr=udp%3A%2F%2Fopen.demonii.com%3A1337&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969&tr=udp%3A%2F%2Fexodus.desync.com%3A6969"
Now an error throws on the magnet link saying "No such host is known and referring to udp://exodus.desync.com:6969/"(Visual Studio is on swedish so that might not be a literal translation).
Visual Studio is marking tracker = new UdpClient(announceUrl.Host, announceUrl.Port); as the error source and it's located inside one of MonoTorrent's code files; UdpTracker.cs
I am trying to make a simple application and I am just stuck on this part.
Any help is greatly appreciated. It's one of my first times posting here so if I missed to mention anything just tell me and I will add it.
Thanks on forehand! Also pardon my english, I am not a native speaker.
Update: If you know another way of solving this even without MonoTorrnet - I will take any help I can.

Nancy.ViewEngines.ViewNotFoundException: Unable to locate view 'Index'

I know this question was asked month before but was never answered.
My program starts normally but after returning View["Index", blogPost] it could not find the Index.cshtml and raises an exception.
Get["/"] = parameters =>
{
var blogPost = new BlogPost
{
Id = 1,
Title = "Test",
Content = "Lorem ipsum...",
Tags = { "c#", "aspnetmvc", "nancy" }
};
return View["Index", blogPost];
};
Exception:
Nancy.RequestExecutionException: Oh noes! ---> Nancy.ViewEngines.ViewNotFoundException: Unable to locate view 'Index'
Currently available view engine extensions: sshtml,html,htm,cshtml,vbhtml
Locations inspected: views/Home/Index-de-DE,views/Home/Index,Home/Index-de-DE,Home/Index,views/Index-de-DE,views/Index,Index-de-DE,Index`

If the answer giving my Christian doesn't help you like it didn't help me there is a alternative issue/solution. The alternative is to make sure that the file you created is being copied to the output directory at compile time. You can check it under the properties tab like shown bellow

The exception message tells you where Nancy tried to look for the view:
Locations inspected: views/Home/Index-de-DE,views/Home/Index,Home/Index-de-DE,Home/Index,views/Index-de-DE,views/Index,Index-de-DE,Index
The exception also tells you which file extensions Nancy tried to look for:
Currently available view engine extensions: sshtml,html,htm,cshtml,vbhtml
That is Nancy looks for a file in one of the listed locations with one of the listed extensions.
So the question is if your index.cshtml is in one the listed folders. If not you can either move it there or set up a view location convention.

We ran into this error and noticed the .cshtml file it was complaining about was not getting copied to the server. The solution was in Visual Studio, in the file's properties, we changed the Build Action to Content. This forces it to get included in the build artifacts that are deployed to the server. Similarly you could change the Copy to Output Directory to Always as others have mentioned; either works, but I find setting the file as Content a bit more informative.
In your case, I'm guessing you have an Index.cshtml file which you need to set this property on.

Why did this happen after deploying my ASP.Net Dynamic Data Web App to a test server?

I deployed the web application that I've been developing to our test server for the first time today, and for some odd reason the "insert" hyperlink on the Insert.aspx page template is not functioning. It's not throwing an error, and I can insert into the tables in question on the remotely hosted SQL Server DB like so:
protected void btInsert_Click(object sender, EventArgs e)
{
BedType bt = new BedType();
bt.Value = "Twin";
bt.MaxSpace = 1;
using (OEContext context = new OEContext())
{
context.BedTypes.Add(bt);
context.SaveChanges();
}
}
But when attempting to insert using the default Insert.aspx template, the "insert" hyperlink just doesn't function ("cancel" works fine though!)
Google-fu has failed me all afternoon. I have no ideas and am totally stumped...

So, after much banging my head on the desk, I've figured out the answer to this rather strange issue and wanted to post it in case anyone else comes across the same problem.
When I installed the "AJAX Toolkit" using NuGet, my app stopped compiling because it wasn't finding the "MsAjaxBundle" Web Resource that the script manager was looking for:
<asp:ScriptReference name="MsAjaxBundle" />
This code was added to my Site.Master file when I added the reference to the ajax control toolkit. Because it was looking for that bundle, and it didn't exist, I did a bit of googling and found the web resource and registered it with my script manager in my Global.asax file:
ScriptManager.ScriptResourceMapping.AddDefinition("MsAjaxBundle", new ScriptResourceDefinition
{
Path = "~/bundles/MsAjaxJs",
CdnPath = "http://ajax.aspnetcdn.com/ajax/4.5/6/MsAjaxBundle.js",
LoadSuccessExpression = "window.Sys",
CdnSupportsSecureConnection = true
});
And it compiled and ran! But, for some reason, the app was suppressing a "WebForm_PostBackOptions not defined" error. Once I caught that and began digging, I was led back to my MsAjaxBundle and ultimately realized that it was the culprit. A bit more googling and came across this page:
http://stephenblog.wpengine.com/archive/2012/09/20/september-2012-release-of-the-ajax-control-toolkit
which pointed to some changes in the ScriptManager:
1) We need to replace the asp:ScriptManager with the ajaxToolkit:ToolkitScriptManager
2) We need to remove the MsAjaxBundle bundle from the ScriptReferences
3) We need to remove the Assembly=”System.Web” attributes from the ScriptReferences
And my problem was solved. If anyone that has more knowledge and experience than me could explain why this happened in the comments, then feel free! I'm just happy that I'm through this one, as it was particularly frustrating for me :P

How to use ASP.NET MVC 3 and Stack Overflow's Markdown

I couldn't find any real sources for this. I'm building a site in ASP.NET MVC 3 and would like to take advantage of the Markdown editor that Stack Overflow uses. Does anybody have a good tutorial?
Where do you download the latest markdown? What language is it written in? Where would I start in integrating this into an MVC 3 project? Even after all the searching and reading I've done I'm still pretty confused.
I came across this site. But this seems outlandishly old and it would seem I would have to learn a little something about CGI and Perl which I have absolutely no experience with. A JavaScript/jQuery version would be splendid.
Update
I noticed this question is getting a fair amount of views so I decided to update it with some helpful references. I managed to get a Markdown editor working nicely on my website, and I wrote a few blogs about it.
MarkdownSharp and Encoded HTML
JQuery WMD Plugin
Finding and implementing the WMD editor

Stackoverflow open sourced their version of Markdown to the world. Its called MarkdownSharp and is written in C#.
Somebody wrote a HtmlHelper here:
http://blog.dantup.com/2011/03/an-asp-net-mvc-htmlhelper-extension-method-for-markdown-using-markdownsharp
If you are looking for how to implement a javascript editor there is an existing question:
Integrate Markitup text editor to ASP.NET MVC project

You are probably looking for MarkdownSharp
Open source C# implementation of Markdown processor, as featured on Stack Overflow.
To integrate it into an MVC app:
In a until or common controller, add the following action method
public ActionResult FormatMarkdown(string markdownText)
{
var md = new MarkdownSharp.Markdown();
string html = md.Transform(markdownText);
return Json(html, JsonRequestBehavior.AllowGet);
}
in your client side view:
#Html.TextArea("mdText", new { rows = 12, cols = 60 })
<div id="mdFormatted"></div>
and client side JS:
$(function () {
var mdText = $("#mdText");
var mdFormatted = $("#mdFormatted");
function setFormatted(data) {
mdFormatted.html(data);
};
mdText.toObservable("keypress")
.Throttle(200)
.Subscribe(function () {
$.getJSON("#VirtualPathUtility.ToAbsolute("~/Util/FormatMarkdown/")", {
markdownText: mdText.val()
}, setFormatted);
})
Download RxJs (from MSDN) and include the following two js files
<script src="#Url.Content("~/Scripts/rx.js")" type="text/javascript"></script>
<script src="#Url.Content("~/Scripts/rx.jquery.js")" type="text/javascript"></script>

I know this question is old but I stumbled upon another solution markdowndeep which is very friendly with MVC
It can be installed through nuget PM> Install-Package MarkdownDeep.Full
Markdown in C#
// Create an instance of Markdown
var md = new MarkdownDeep.Markdown();
// Set options
md.ExtraMode = true;
md.SafeMode = false;
string output = md.Transform(input);
Editor
1.Copy the supplied js, css, png and htm files to your server. Depending where you place these files on your server, you might need to update the image urls in the css file.
2.Update your page to reference jQuery, the MarkdownDeep library and the MarkdownDeep css file (again, you might need to change the paths).
<link rel="stylesheet" href="mdd_styles.css"
<script type="text/javascript" src="jQuery-1.4.2.min.js">
<script type="text/javascript" src="MarkdownDeepLib.min.js">
NB: MarkdownDeepLib.min.js is a packaged, minified version of MarkdownDeep.js, MarkdownDeepEditor.js and MarkdownDeepEditorUI.js. For debugging, you can reference these three files instead.
3.Insert the Markdown editor into your page like this:
<div class="mdd_toolbar"></div>
<textarea cols=50 rows=10 class="mdd_editor"></textarea>
<div class="mdd_resizer"></div>
<div class="mdd_preview"></div>
Note: the associated divs are all optional and if missing, the plugin will create them. However... you might experience the page jumping around during load if you do this. ie: it's recommended to explicitly include them.
4.Called the MarkdownDeep jQuery plugin to convert the textarea to a MarkdownEditor
$("textarea.mdd_editor").MarkdownDeep({
help_location: "/Content/mdd_help.html",
disableTabHandling:true
});
Although I really like their product I am not affiliated with the makers of markdowndeep. I just thought they made a good product

This question is old, but I'm just leaving an answer here so that future readers can benefit from it.
I have used MarkdownSharp v1.13, It does NOT sanitize your html output. For example, if you type:
<script type="text/javascript">alert("Hacked");</script>
Into your input field, the output from MarkdownSharp contains the same script. Thus it exposes your website to XSS vulnerability.
Read this from Stackoverflow's article on PageDown:
It should be noted that Markdown is not safe as far as user-entered input goes. Pretty much anything is valid in Markdown, in particular something like <script>doEvil();</script>. This PageDown repository includes the two plugins that Stack Exchange uses to sanitize the user's input; see the description of Markdown.Sanitizer.js below.
So, from other point of view, maybe Markdown was not supposed to sanitize your input in the first place and MarkdownSharp implementation of it just conformed with those principles. I should mention that Stackoverflow does uses MarkdownSharp on their server side.

IronPython and Nodebox in C#

My plan:
I'm trying to setup my C# project to communicate with Nodebox to call a certain function which populates a graph and draws it in a new window.
Current situation: [fixed... see Update2]
I have already included all python-modules needed, but im still getting a
Library 'GL' not found
it seems that the pyglet module needs a reference to GL/gl.h, but can't find it due to IronPython behaviour.
Requirement:
The project needs to stay as small as possible without installing new packages. Thats why i have copied all my modules into the project-folder and would like to keep it that or a similar way.
My question:
Is there a certain workaround for my problem or a fix for the library-folder missmatch.
Have read some articles about Tao-Opengl and OpenTK but can't find a good solution.
Update1:
Updated my sourcecode with a small pyglet window-rendering example. Problem is in pyglet and referenced c-Objects. How do i include them in my c# project to be called? No idea so far... experimenting alittle now. Keeping you updated.
SampleCode C#:
ScriptRuntimeSetup setup = Python.CreateRuntimeSetup(null);
ScriptRuntime runtime = new ScriptRuntime(setup);
ScriptEngine engine = Python.GetEngine(runtime);
ScriptSource source = engine.CreateScriptSourceFromFile("test.py");
ScriptScope scope = engine.CreateScope();
source.Execute(scope);
SampleCode Python (test.py):
from nodebox.graphics import *
from nodebox.graphics.physics import Vector, Boid, Flock, Obstacle
flock = Flock(50, x=-50, y=-50, width=700, height=400)
flock.sight(80)
def draw(canvas):
canvas.clear()
flock.update(separation=0.4, cohesion=0.6, alignment=0.1, teleport=True)
for boid in flock:
push()
translate(boid.x, boid.y)
scale(0.5 + boid.depth)
rotate(boid.heading)
arrow(0, 0, 15)
pop()
canvas.size = 600, 300
def main(canvas):
canvas.run(draw)
Update2:
Line 139 [pyglet/lib.py] sys.platform is not win32... there was the error. Fixed it by just using the line:
from pyglet.gl.lib_wgl import link_GL, link_GLU, link_WGL
Now the following Error:
'module' object has no attribute '_getframe'
Kind of a pain to fix it. Updating with results...
Update3:
Fixed by adding following line right after first line in C#-Code:
setup.Options["Frames"] = true;
Current Problem:
No module named unicodedata, but in Python26/DLLs is only a *.pyd file`. So.. how do i implement it now?!
Update4:
Fixed by surfing: link text and adding unicodedata.py and '.pyd to C# Projectfolder.
Current Problem:
'libGL.so not found'... guys.. im almost giving up on nodebox for C#.. to be continued
Update5:
i gave up :/ workaround: c# communicating with nodebox over xml and filesystemwatchers. Not optimal, but case solved.

-X:Frames enables the frames option as runtime (it slows code down a little to have access to the Python frames all the time).
To enable frames when hosting you just need to do:
ScriptRuntimeSetup setup = Python.CreateRuntimeSetup(new Dictionary<string, object>() {
{ "Frames", true }
});
Instead of the null that you're passing now. That's just creating a new dictionary for the options dictionary w/ the contents "Frames" set to true. You can set other options in there as well and in general the -X:Name option is the same here as it is for the command line.