I came across https://github.com/sshnet/SSH.NET library for connecting with sftp server, however It says its only compatible with .net framework while we use .net core for writing azure functions. Does anyone know any other way? Also how do I send the file to the server once I am connected to the server.
Have used Renci.SshNet with Azure Functions successfully.
Upload is as simple as:
var connectionInfo = new ConnectionInfo(
config["SftpHostname"],
username,
new PasswordAuthenticationMethod(username, config["SftpPassword"]
));
sftpClient = new SftpClient(connectionInfo);
sftpClient.Connect();
sftpClient.UploadFile(requestFile, filePath);
Related
Can any one suggest how to Upload a file to Azure File Share in.Net Core Web API?
I'm using IFormFile to Upload File.
Note: I'm trying to upload Excel(*.xlsx) File.
Did you had a look at the documentation already?
https://learn.microsoft.com/en-us/azure/storage/files/storage-dotnet-how-to-use-files
https://learn.microsoft.com/en-us/dotnet/api/azure.storage.files.shares.sharefileclient.uploadasync?view=azure-dotnet
It should look similar to this (Note: this code is not functionally, just made it up by memory)
var file = Request.Form.Files[0];
if (file.Length > 0)
{
Stream fileStream = file.OpenReadStream();
shareFileClient.UploadAsync(fileStream);
}
I created a simple Blazor WASM webapp using C# .NET5. It connects to some Functions which in turn get some data from a SQL Server database.
I followed the tutorial of BlazorTrain: https://www.youtube.com/watch?v=5QctDo9MWps
Locally using Azurite to emulate the Azure stuff it all works fine.
But after deployment using GitHub Action the webapp starts but then it needs to get some data using the Functions and that fails. Running the Function in Postman results in a 503: Function host is not running.
I'm not sure what I need to configure more. I can't find the logging from Functions. I use the injected ILog, but can find the log messages in Azure Portal.
In Azure portal I see my 3 GET functions, but no option to test or see the logging.
With the help of #Aravid I found my problem.
Because I locally needed to tell my client the URL of the API I added a configuration in Client\wwwroot\appsettings.Development.json.
Of course this file doesn't get deployed.
After changing my code in Program.cs to:
var apiAddress = builder.Configuration["ApiAddress"] ?? $"{builder.HostEnvironment.BaseAddress}/api/";
builder.Services.AddHttpClient("Api",(options) => {
options.BaseAddress = new Uri(apiAddress);
});
My client works again.
I also added my SqlServer connection string in the Application Settings of my Static Web App and the functions are working as well.
I hope somebody else will benefit from this. Took me several hours to figure it out ;)
I recently need to use .net core to do SOAP NTLM login.. to my horror.. I realized ,net core does not come with SOAP support.. fumbling around, I came across SOAPCore on nuget package which has SOAP middleware for .net core. My console app interfacing to .net core 2.1 SDK tries to do NTLM login. Below is the codes, very simple.. it's trying to login to Milestone VMS.
<----------codes--------------->
int MAX_BUFFERSIZE = 2 * 1024 * 1024;
string strURL = "http://192.168.51.207/ServerAPI/ServerCommandService.asmx";
BasicHttpBinding httpBinding = new BasicHttpBinding();
httpBinding.MaxBufferSize = MAX_BUFFERSIZE;
httpBinding.MaxReceivedMessageSize = MAX_BUFFERSIZE;
httpBinding.Security.Mode = BasicHttpSecurityMode.TransportCredentialOnly;
httpBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Ntlm; //changed Ntlm to Windows also don't help
EndpointAddress endpoint = new EndpointAddress(strURL);
var factory = new ChannelFactory(httpBinding, endpoint);
CredentialCache cc = new CredentialCache();
NetworkCredential ntcc = new NetworkCredential("user", "password", "domain");
cc.Add(strURL, 80, "ntlm", ntcc);
factory.Credentials.Windows.ClientCredential = cc.GetCredential(strURL, 80, "ntlm");
var client = factory.CreateChannel();
Guid guid = Guid.NewGuid();
LoginInfo lo = client.Login(guid, "");
Console.Write("\ntoken=" + lo.Token);
ConfigurationInfo config = client.GetConfiguration(lo.Token);
... //do something
client.Loguout(guid, lo.Token); //logout
<-------------end of code segment------------>
Now, running this in Windows 10 works fine.. it's able to login and get the info needed.. but funny thing is when it runs on Linux.. I installed BASH for Windows 10 and it's Ubuntu 18.04, and have installed .net core 2.1.300.. it gave an http code 401 exception: "The HTTP request is unauthorized with client authentication scheme 'Ntlm'. The authentication header received from the server was 'Negotiate, Ntlm'."
I've previously read on Stackoverflow about something quite similar and it was said that .net core 2.1 would resolve it.. I'm already using 2.1.300. Is it still not resolved? or am I doing something wrong?
Another question I have pertaining to this, the "ServerCommandServiceSoap" interface is generated using svcutil.exe from the wsdl file provided by Milestone in their SDK. Now, what is the difference between svcutil.exe and wsdl.exe? I noticed that the proxy class generated isn't the same usi ng these two tools.. using svcutil.exe has an interface class with dependencies on System.ServiceModel, while using wsdl.exe has no interface class and depends on System.Web.Services which is not available in .net core. why is it different when they are ran against the same wsdl document?
Can someone please enlighten me on this? thanks a lot.. :)
I am working on a project which involves gathering some sensor data and build a GUI on it, with controlling of sensors. It has following two basic requirements.
Should be a web based solution (Although it will only be used on LAN or even same PC)
It should be executable on both windows IoT core and standard windows PC (Windows 7 and above)
I have decided to use Embedded webserver for Windows IoT, which seems to be a good embedded server based on PCL targeting .NET 4.5 and UWP. So I can execute it on both environments. That is great! But the problem is this web server doesn't support SSL, I have tried to search other servers and have come up with Restup for UWP, which is also a good REST based web server, but it also doesn't support SSL.
I needs an expert opinion, that if there is any possibility I can use SSL protocol in these web servers. Is it possible that it can be implemented using some libraries like OpenSSL etc? (Although I think that it would be too complex and much time taking to implement it correctly)
Edit
I would even like to know about ASP.NET core on Windows 10 IoT Core, if I can build an application for both windows. I found one example but it is DNXbased, and I don't want to follow this way, as DNX is deprecated.
Any help is highly appreciated.
Late answer, but .NET Core 2.0 looks promising with Kestrel. I successfully created a .Net Core 2.0 app on the PI 3 this morning. Pretty nifty and If you already have an Apache web server, you’re almost done. I’m actually going to embed (might not be the right term) my .Net Core 2.0 web application into a UWP app, rather than create multiple unique apps for the touchscreens around the house.
.Net Core 2.0 is still in preview though.
https://learn.microsoft.com/en-us/aspnet/core/fundamentals/servers/kestrel?tabs=aspnetcore2x
I know this post is pretty old, but I have built the solution which you are asking bout. I’m currently running .Net 5.0 on a Raspberry pi. When you build the .net core web project, select the correct target framework and the target runtime to win-arm. Copy the output some directory on the pi and you will have to access the device using powershell to create a scheduled task to start the web project. Something like this:
schtasks /create /tn "Startup Web" /tr c:\startup.bat /sc onstart /ru SYSTEM
That starts a bat file which runs a powershell command which has the following command:
Set-Location C:\apps\vradWebServer\ .\VradTrackerWeb.exe (the .\VradTrackerWeb.exe is on a second line in the file) - the name of the webapp.
That starts the server. If you have any web or apps posting to the webserver you will need an ssl cert. I used no-ip and let’s encrypt for this. For let’s encrypt to work, you will need an external facing web server and have the domain name point to it. Run let’s encrypt on the external server and then copy out the cert and place it in your web directory on the pi. I then have a uwp program that runs on the pi and when it starts, it gets it’s local address and then updates no-ip with the local address, so the local devices communicating will be correctly routed and have the ssl cert. Side note, my uwp app is the startup app on the device. The scheduled task is important because it allows you to run you app and the web server. The following snip is how I get the ip address and then update no-ip.
private string GetLocalIP()
{
string localIP = "";
using (Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, 0))
{
socket.Connect("8.8.8.8", 65530);
IPEndPoint endPoint = socket.LocalEndPoint as IPEndPoint;
localIP = endPoint.Address.ToString();
}
return localIP;
}//GetLocalIP
private async void UpdateIP()
{
string localIP = "";
string msg = "";
var client = new HttpClient(new HttpClientHandler { Credentials = new NetworkCredential("YourUserName", "YourPassword") });
try
{
localIP = GetLocalIP();
string noipuri = "http://dynupdate.no-ip.com/nic/update?hostname=YourDoman.hopto.org&myip=" + localIP;
using (var response = await client.GetAsync(noipuri))
using (var content = response.Content)
{
msg= await content.ReadAsStringAsync();
}
if (msg.Contains("good") == true || msg.Contains("nochg")==true)
{
SentDynamicIP = true;
LastIPAddress = localIP;
}
else
{
SentDynamicIP = false;
}
}
catch(Exception ex)
{
string x = ex.Message;
}
finally
{
client.Dispose();
}
}//UpdateIP
Trying to run SQL Server CE on an Azure website, but I am getting error:
Unable to load the native components of SQL Server Compact corresponding to the ADO.NET provider of version 8876. Install the correct version of SQL Server Compact. Refer to KB article 974247 for more details
You cannot use SQL Server CE on Azure Web Sites. Using Azure Web Sites you have to use external database - such as Azure SQL Database or MySQL.
Generally speaking for the cloud and any cloud service (IaaS, PaaS, SaaS), you shall never rely on local file system, but rather persist your files on a durable storage such as Azure Blob Storage. Thus you can't (shall not) use services like SQL Server CE.
This seems to work:
Reference System.Data.SqlServerCe 4.0, set "Copy Local" = true.
Azure runs as a an x86 process (not Amd):
Environment.GetEnvironmentVariable("PROCESSOR_ARCHITECTURE");
On dev machine find SQLServerCE dependencies:
C:\ProgramFiles\Microsoft SQL Server Compact Edition\v4.0\Private\x86
Create SqlServerCE\x86 folder in web project.
Copy x86 files into new x86 folder:
sqlceca40.dll
sqlcecompact40.dll
sqlceer40EN.dll
sqlceme40.dll
sqlceqp40.dll
sqlcese40.dll
Add this block to top of application_start in global.asax
string dest = AppDomain.CurrentDomain.SetupInformation.PrivateBinPath;
string src = AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "SqlServerCE\\x86";
foreach (var file in Directory.GetFiles(src))
{
var fileinfo = new FileInfo(file);
string destpath = Path.Combine(dest, fileinfo.Name);
if (!File.Exists(destpath))
{
fileinfo.CopyTo(destpath);
}
}
Note: I am not happy with this solution but I can't figure out how to get the files into the bin folder on deployment. post build events don't seem to work. If anyone has a better solution please suggest it.