I have create a file upload project in silverlight
using FtpClient by following this link
(https://github.com/dittodhole/sharpLightFtp).
It works well in local development(visual studio) and local
iis server also.But when I host this into my server i get following problem.
var success = ftpClient.BasicConnect();
success becomes false.What may be the reason for this?
Actually I am the author of this library.
Did you read the README file? It explains the steps:
You need to follow this awesome tutorial to enable elevated trust in-browser, which is needed for socket-programming.
So, my guesses:
Missing signing/Missing reg-entry for the CA
or missing policy-file
Related
I have an application with the web browser launch properties set to open designated XPage (home.xsp).
It works fine on our test server but not on the new DMZ server where I get a 404 error (HTTP Web Server: Item Not Found Exception)
I've looked on Stack Overflow but haven't found anything to point me in the right direction. Would someone let me know how I can resolve this?
Thanks,
Dan
I would try some things
clean the project
manually build the project
check the data\Technical support folder and the data\Domino\workspace\logs folder on the server for clues
I'm trying to create a new solution with dot net nuke.
I installed the packages and configured IIS to work with it.
Then with visual studio i created a new solution. I want to import an old module already created, so i copied/pasted the folder in "DesktopModules".
Then with VS i right click on the solution and selects add existing project.
This way i get an error:
The web application project "name" is configured to use IIS. The web server "http://dnndev.me/desktopmodules/name" is not found.
It's probably because the corresponding projet is configured to use a web server depending on the URL you've got.
I suggest you to edit the project file with notepad (csproj or vbproj) and to remove the specified URL configuration. You also have to set the UseIIS value to false.
Note that this configuration could be stored in the users project file (.vbproj.user or .csproj.user).
Then, try again to add this project to your solution.
Does anybody have any experience with libcurl (C/C++) and Kerberos authentication?
I am able to set everything up and post data - however, now we have switched on SSO (via SPNEGO on a JBoss server) I am unable to authenticate properly, with authorization being downgraded to Basic.
At this stage I am using curl_easy_setopt(curl,CURLOPT_HTTPAUTH, CURLAUTH_GSSNEGOTIATE) and have also set the CURLOPT_KRBLEVEL to "private".
Looking at the headers in wireshark, the response from curl doesn't provide any credentials - which is throwing an EncryptionKey exception on the JBoss server. I am able to authenticate on the server via .NET using cached credentials and a httprequest object. Only problem is we can't use .NET on this project.
Thanks in advance for any help.
As an additional point. I have just seen that under libcurl Kerberos is only supported for ftp. I am trawling the source to try and confirm if this is the case. Anybody know of any other libraries that we might be able to use to perform our POST?
Ok - for anybody that reaches this point...
I downloaded this version: http://curl.haxx.se/download.html win 32 generic.
It is compiled to run under ssh, ntlm and kerberos etc. The download includes the relevant DLL's you will need to create apps for any environment that requires cached credentials.
If you want specific code - pertaining to using callbacks, chunking etc, drop me a line and I can forward it to you. Given the flexibility of the curl library - it would be a bit much to just drop a ton of code here. Once you have the curl.exe up and running, there is a cmd line switch that can output the equivalent code to a text file (although it doesn't include information regarding any writecallback functions etc - just the easy setup options required). Thanks to n.m for your help - much appreciated. G
I have a silverlight business aplication that gets data from silverlight enabled webservice.
When I run the application in dev environment, it works fine.
when i deploy the application and the Asp.net web development server is working, then to the application works fine.
But when I stop the development server, the application can't access a service.
My questions are:
When I deploy a silverlight business application, doesn't the service get deployed and get started.
The endpoint address in my ServiceReferences.Clientconfig file is endpoint address="http://localhost:9702/MyWebservice.scv. Do I need to change this?
The enpoint address in the web.config is blank.
Appreciate your help
Because the WCF client code is declared as a "partial" class, what I've been doing to this point is creating another c# partial class file to host a GetClient() method on it. You'll notice that the code is taking into account the port that the service is on... in a few of the environments that I've posted or will be posting to, as well as the development environment, the application is not always on port 80.
Namespace Project.Service
{
public partial class ServiceClient
{
public static ServiceClient GetClient()
{
return new ServiceClient("CustomBinding_Service",
new System.ServiceModel.EndpointAddress(new Uri(string.Format("{0}://{1}:{2}/Services/Service.svc",
Application.Current.Host.Source.Scheme, Application.Current.Host.Source.Host, Application.Current.Host.Source.Port), UriKind.Absolute)));
}
}
}
Hope this helps someone!
Yes you are going to want to change your endpoint address. I recommend doing it in the silverlight code when creating the connection to the WCF service. The service itself lives on the web server, whereas the silverlight application lives on the clients computer. If the web server stops, the web service stops but the silverlight app can keep running.
edit:
To do this in code, as long as the path is always in the same domain as the app you can use do like so:
BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.None) //Use whatever security you need here
{
MaxReceivedMessageSize = int.MaxValue,
MaxBufferSize = int.MaxValue
};
Client client = new Client(binding, new EndpointAddress(new Uri(Application.Current.Host.Source, "../MyService.svc")));
Thanks so much for your help. I tried your approach to create the client code but that didn't work. And that's because the problem seems to be somewhere else.
So I installed fiddler to see the traffic.
Fiddler showed that the service was being accessed but the http response code was 302 showing that there was some redirection involved.
The address of my application is like this http:///Silverlightapp/(S(oirppxrwzhlf2a2vbia1ui45))/Default.aspx#/Home and it is hosted on IIS 6.
So I had to employ a workaround by installing the service on machine with IIS7 (and there was no session id involved like in the above url).I still kept the silverlight application hosted on IIS 6.
Anyway, in summary, to anyone who reads the thread, I did the following to troubleshoot and solve issue(temporarily)
Changed the end point address in the ServiceReferences.ClientConfig file. When you add the service using discover option in VS, the endpoint address is of the localhost and this must be changed.
Registered the service model using ServiceModelReg -i command. (this solved my problem that my applicaiton was only working from development server and not IIS)
-Put the CrossDomain and ClientAccessPolicy files in c:]inetpub\wwwroot folders.
-Used fiddler to look at http response codes. I had to do no configuration in fiddler.
Changed the binarymessageEncoding to textMessageEncoding iin the web.config file of the silverlight web project that also hosted the ecf service. I did this becasue adding a silverlight enabled wcf service creates a custom binding configuration in the web.config file by default uses binary encoding. I needed text encoding to see errors in fidder. But this didn't help much becasue I only saw the name of the operation in the Inspector>xml tab in fiddler. This was the same even after my issues was resolved by workaround.
Thanks for the help
Don't do it in code. Otherwise you won't be able to change it later without recompiling the application (when the address will need to change, perhaps years down the road when you've lost the source code :)
Change the address in ServiceReferences.ClientConfig to where the service is actually hosted... e.g. http://example.com/myVdir/MyWebservice.svc
If later on you need to change the address without recompiling:
- Open the .xap file (it's just a zip file with a different extension)
- Find the .ClientConfig file and change the address
- Put it back together as a .zip file and rename to .xap
Also, I can't remember anymore whether the .ClientConfig supports relative addresses (e.g. just "MyWebService.svc"), but if it does it may be a good solution as well.
I'm working on trying to ftp a file to the server through a silverlight application. Where the location to upload the file on server file system, exists outside the sandbox area for the web server. In this case the web server root exists at "C:\test\www\" and the location to upload the file will exist at "C:\User\Uploads". In this scenerio i'm not sure if Http POST will work (doesn't that use the web server root). I just need to upload the file selected by the user to a different location that may exist outside the sandbox. With silverlight i'm thinking sockets are my last option based on the limited port range for silverlight being 4502-4532. Can i do this using WebClient and Http POST? Can i make an ftp connection through silverlight or javascript?
This is an interesting scenario, since it sounds like you are doing this all on the same machine (both client and server). I am responding to the vague original question, and would love additional data to help answer this completely.
FTP uploading itself is not supported by Silverlight, but the concept of uploading a file is, through an HTTP stream of data.
If you want to do an HTTP upload from a client machine to the server: You can use the OpenFileDialog control in Silverlight 2 and 3 to read that data, then use WebClient to upload it.
If you want to do a download from something your web server can send, to the client machine, then you'd need to use Silverlight 3 or newer, which features a SaveFileDialog control.
All Silverlight file dialogs require a user-initiated action for them to work, function, and the user will need to select the file name(s) for security purposes.
Hope this helps!
Assuming your server is ASP.NET based I would use a simple WebClient POST into a .ashx handler. Have the handler write the body of the post to a file in "C:\User\Uploads".
As long as the ftp server is on the same host as the silverlight app you can use sockets and code your own ftp client, its not very hard and there's plenty of examples out there.
In the meantime, name it Silverlight 5, Sockets got an update: with ClientAccessPolicy.xml the port-range got boosted and an in-browser elevated-trust mode is available.
Therefore I've created sharpLightFtp to enable rudimental Ftp.