How to Check Proxy - asp.net

I have a Web app calling a Web Service by IP with the following code:
ws.Proxy = System.Net.HttpWebRequest.DefaultWebProxy;
ws.Credentials = System.Net.CredentialCache.DefaultCredentials;
ws.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
I believe this uses the IE proxy settings. I'm trying to troubleshoot a separate issue and want to confirm the default proxy details being used.
How do I do that?
I tried making sense of this:
How to AutoDetect/Use IE proxy settings in .net HttpWebRequest

I failed to get the proxy uri back using Scotty's link in the comments or this one:
https://msdn.microsoft.com/en-us/library/vs/alm/system.net.iwebproxy.getproxy(v=vs.110)
So had to use another approach to troubleshoot my app. Not an answer, just closing this out.

Related

Stuck with woocommerce_rest_authentication_error: Invalid signature - provided signature does not match

Below issue was posted by me on https://github.com/XiaoFaye/WooCommerce.NET/issues/414 but since this may not be related at all to WooCommerce.Net but on a lowerlevel to Apache/Word/WooCommerc itself I am posting the same question here
I am really stuck with the famous error:
WebException: {"code":"woocommerce_rest_authentication_error","message":"Invalid signature - provided signature does not match.","data":{"status":401}}
FYI:
I have two wordpress instance running. One on my local machine and one on a remote server. The remote server is, as my local machine, in our company's LAN
I am running WAMP on both machines to run Apache and host Wordpress on port 80
The error ONLY occurs when trying to call the Rest api on the remote server. Connecting to the local rest api, the Rest Api/WooCommerceNet is working like a charm :-)
From my local browser I can login to the remote WooCommerce instance without any problem
On the remote server I have defined WP_SITEURL as 'http://[ip address]/webshop/ and WP_HOME as 'http://[ip address]/webshopin wp-config.php
Calling the api url (http://[ip address]/webshop/wp-json/wc/v3/) from my local browser works OK. I get the normal JSON response
Authentication is done through the WooCommerce.Net wrapper which only requires a consumer key, consumer secret and the api url. I am sure I am using the right consumer key and secret and the proper api url http://[ip address]/webshop/wp-json/wc/v3/ (see previous bullet)
I already played around with the authorizedHeader variable (true/false) when instantiating a WooCommerce RestApi but this has no effect
Is there anybody that can point me into the direction of a solution?
Your help will be much appreciated!
In my case, the problem was in my url adress. The URL Adress had two // begin wp-json
Url Before the solution: http://localhost:8080/wordpress//wp-json/wc/v3/
URL Now, and works ok: http://localhost:8080/wordpress/wp-json/wc/v3/
I use with this sentence.
RestAPI rest = new RestAPI(cUrlApi, Funciones.CK, Funciones.CS,false);
WCObject wc = new WCObject(rest);
var lstWooCategorias = await wc.Category.GetAll();
I hope my answer helps you.
Had the same issue. My fault was to define my url incorrect: http:// instead of https://.

IdentityModel.OidcClient library doesn't seem to work with UWP

We are using ASP.NET Identity with IdentityServer4. We've added a Client to use with Azure AD. This works great within a web page, that part is working.
Our end goal is a UWP app, so we found the IdentityModel.OidcClient which has a UWP sample. This sample has two browser classes. We configured HTTPS, but the WabBrowser class now refuses to connect to the site at all. If I change the config to hit https://demo.identityserver.io then it works, but all the other config is the same, so I'm not sure what the problem could be. It shows an error message in the pop up browser that it could not connect.
I looked at the SystemBrowser class, but this logs in fine, then the browser window does not close, and even if we close it, the code doesn't move on to get back a result. Looking at the source, this is not surprising, it calls:
Launcher.LaunchUriAsync(new Uri(options.StartUrl));
and that's all. The RedirectUri is not passed in, and mechanism appears to exist to use it. So, the behaviour we see appears to be the extent of what the class can do.
Looking at the console .NET Core sample, it has a SystemBrowser class that works. I updated the UWP sample to use the Fall Creators Update and was able to bring in the ASP.NET Core dlls needed to compile this code. It sets up a class like this:
public LoopbackHttpListener(int port, string path = null)
{
path = path ?? String.Empty;
if (path.StartsWith("/")) path = path.Substring(1);
_url = $"http://127.0.0.1:{port}/{path}";
_host = new WebHostBuilder()
.UseKestrel()
.UseUrls(_url)
.Configure(Configure)
.Build();
_host.Start();
}
and I can confirm this gets called only once, but even if I hard code an unused IP address, I get an error that the IP is in use.
So, at this stage, the sample that exists for UWP works for the demo server but not for ours (I suspect an HTTPS issue, but that's not the error I get), and importing code that works for a Core sample, does not work either. I've spent a couple of days on this and would appreciate a nudge in the right direction.
So, to recap, the WabBrowser seems the best bet but, for my localhost IdentityServer I get this:
and if I try to use a .NET Core library that works elsewhere, it thinks a port is in use. I suspect I need to work out why WabBrowser can't connect to my local site. I have turned off Fiddler. I can browse to my https URL and get a disco document, in the browser, at https://localhost:44305/.well-known/openid-configuration.
There are extra steps necessary to enable localhost in the Web Authentication Broker -
https://msdn.microsoft.com/en-us/library/windows/desktop/jj658959%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
This website gave me the fix. Here is a synopsis:
Remove loopback isolation
For security and reliability reasons, UWP applications are not allowed to send requests to the loopback interface. While Visual Studio automatically creates exemptions for debugged apps, this feature won't be helpful in this case, as the authentication broker always executes in a separate process.
If you see this (cryptic) error message in your Windows event logs, then you're likely facing this issue:
AuthHost encountered a navigation error at URL: [...] with StatusCode: 0x800C0005.
One option to fix it is to use the loopack exemption utility developed by Eric Lawrence. It's natively included in Fiddler 4 but can also be downloaded as a standalone software. To allow the authentication broker to communicate with the loopback interface, exempt the applications starting with microsoft.windows.authhost and save your changes:
If everything was properly configured, you should now see the login/consent page returned by your server.

Why won't OAuth work on web server?

I have an ASP.Net web application running on Windows Server 2012, and need to make calls to social networking sites using oauth to generate some of the page content. Everything works on my development machine, but I can't even get a single response back ("unable to connect to the remote server" error).
I disabled the firewall to test that. No luck. I created a console application to test it that way. A simple HttpWebRequest will get the html for any page I throw at it, but not any oauth request. I've used different libraries to try to achieve this, including Linq2Twitter, Spring.Social, and HigLabo. All work locally, but not on the server. I've found nothing useful in the server event log.
Can anyone give me some clues what might be happening?
EDIT: Here's some code I'm using with the HigLabo library to try to retrieve the user timeline.
using HigLabo.Net.Twitter;
var cl = new TwitterClient(consumerKey, consumerSecret, accessToken, accessTokenSecret);
var rr = cl.GetHomeTimeline();
foreach (var r in rr)
{
//Console.WriteLine(r.CreatedAt + ":" + r.Text);
}
I'm aware that accessToken & accessTokenSecret aren't/shouldn't be necessary for a simple timeline read, but this is just to make sure it works first.
This turned out to be a firewall issue, as had been suspected. But not the server firewall. This was a problem with the ISP. They had an internal firewall that was blocking all traffic to/from the social network sites. They were able to resolve it quickly with a phonecall, but it was not a coding or configuration error on my part.

Creating a url in controller in asp.net mvc 4

I am trying to send activation mail to the currently registered user.In mail body,I need to send a link like http://example.com/account/activation?username=d&email=g.Now, for debugging on local machine, I manually write it as localhost:30995/account/activation?username=d&email=g. But, when my port number changes, I need to rewrite it.
I tried another question
on this website,but, compiler gives error like url.action doesnot exist.
Please give me fresh solution as I am confused with that solution.
Use a Url.Action overload that takes a protocol parameter to generate your URLs:
Url.Action("Activation", "Account", new { username = "d", email = "g" }, "http")
This generates an absolute URL rather than a relative one. The protocol can be either "http" or "https". So this will return http://localhost:XXXXX/account/activation?username=d&email=g on your local machine, and http://example.com/account/activation?username=d&email=g on production.
In short, this will stick whatever domain you're hosting your app on in front of your URL; you can then change your hostname/port number/domain name as many times as you want. Your links will always point to the host they originated from. That should solve the problem you're facing.
Try using IIS / IIS-Express instead of Casinni web server that comes with visual studio.
You could add bindings to have the right URL (with host entries of course).
This will avoid the port numbers in your links.

Grails - SSL and Spring security core

I would like to have my application running exclusively with SSL turned on.
I am using the Spring Security core plugin.
This is how I attempt to do it in Config.groovy:
grails.plugins.springsecurity.portMapper.httpPort = 8080
grails.plugins.springsecurity.portMapper.httpsPort = 8443
grails.plugins.springsecurity.secureChannel.definition = [ '/**' : 'REQUIRES_SECURE_CHANNEL']
I was expecting this to cause redirects every time I would try to access a Url using HTTP.
However, I am never redirected, and can navigate through both HTTP and HTTPS. I may add I am starting my application using grails run-app -https
Am I getting this all wrong ?
Any suggestion is most welcome.
Do you have a custom filterchain declared in your config?
you might need to add 'channelProcessingFilter' to your chain in that case
http://static.springsource.org/spring-security/site/docs/3.0.x/reference/security-filter-chain.html
You can also try using the forceHttps option
grails.plugins.springsecurity.auth.forceHttps = true
You don't have any wildcards, so the definition is literally matching the root URL (/), but nothing below it (/foo). What you want is:
grails.plugins.springsecurity.secureChannel.definition = [ '/**' : 'REQUIRES_SECURE_CHANNEL']
^^
(You can clearly see the wildcards in the documentation :-)
Finally, if your server is behind a load balancer or other firewall that hides the protocol, check that same page for instructions on checking the header.

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