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dotnet: Support .env files and autoselect authenticator in example #928

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70 changes: 43 additions & 27 deletions dotnet/examples/VaasExample/Program.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,18 +6,9 @@ namespace VaasExample;

public static class Program
{
private static string ClientId => Environment.GetEnvironmentVariable("CLIENT_ID") ?? string.Empty;
private static string ClientIdForResourceOwnerPasswordGrant => Environment.GetEnvironmentVariable("VAAS_CLIENT_ID") ?? "vaas-customer";
private static string ClientSecret => Environment.GetEnvironmentVariable("CLIENT_SECRET") ?? string.Empty;
private static string UserName => Environment.GetEnvironmentVariable("VAAS_USER_NAME") ?? string.Empty;
private static string Password => Environment.GetEnvironmentVariable("VAAS_PASSWORD") ?? string.Empty;
private static Uri VaasUrl => new(Environment.GetEnvironmentVariable("VAAS_URL") ??
"wss://gateway.production.vaas.gdatasecurity.de");
private static Uri TokenUrl => new(Environment.GetEnvironmentVariable("TOKEN_URL") ??
"https://account.gdata.de/realms/vaas-production/protocol/openid-connect/token");

public static async Task Main(string[] args)
{
DotNetEnv.Env.TraversePath().Load();
if (args.Contains("UrlScan"))
await UrlScan();
if (args.Contains("FileScan"))
Expand All @@ -42,7 +33,7 @@ private static async Task HashsumScan()

Console.WriteLine($"{verdict.Sha256} is detected as {verdict.Verdict}");
}

private static async Task UrlScan()
{
var vaas = CreateVaas();
Expand All @@ -55,27 +46,52 @@ private static async Task UrlScan()

private static IVaas CreateVaas()
{
// If you got a username and password from us, you can use the GrantType.Password like this
// You may use self registration and create a new username and password for the
// Credentials by yourself like the example above on https://vaas.gdata.de/login
var authenticator = new ResourceOwnerPasswordGrantAuthenticator(
ClientIdForResourceOwnerPasswordGrant,
UserName,
Password,
TokenUrl
);
// // Else if you got a client id and client secret from us, you should use the GrantType.ClientCredentials like this
// var authenticator = new ClientCredentialsGrantAuthenticator(
// ClientId,
// ClientSecret,
// TokenUrl
// );
var clientId = Environment.GetEnvironmentVariable("CLIENT_ID");
var clientIdForResourceOwnerPasswordGrant = Environment.GetEnvironmentVariable("VAAS_CLIENT_ID") ?? "vaas-customer";
var clientSecret = Environment.GetEnvironmentVariable("CLIENT_SECRET");
var userName = Environment.GetEnvironmentVariable("VAAS_USER_NAME");
var password = Environment.GetEnvironmentVariable("VAAS_PASSWORD");
var vaasUrl = new Uri(Environment.GetEnvironmentVariable("VAAS_URL") ??
"https://gateway.production.vaas.gdatasecurity.de");
var tokenUrl = new Uri(Environment.GetEnvironmentVariable("TOKEN_URL") ??
"https://account.gdata.de/realms/vaas-production/protocol/openid-connect/token");

IAuthenticator authenticator;
if (userName is not null)
{
if (password is null)
throw new ArgumentNullException("VAAS_PASSWORD", "Password must be set when using Resource Owner Password Grant");
// If you got a username and password from us, you can use the GrantType.Password like this
// You may use self registration and create a new username and password for the
// Credentials by yourself like the example above on https://vaas.gdata.de/login
authenticator = new ResourceOwnerPasswordGrantAuthenticator(
clientIdForResourceOwnerPasswordGrant,
userName,
password,
tokenUrl
);

}
else
{
if (string.IsNullOrEmpty(clientId) || string.IsNullOrEmpty(clientSecret))
{
throw new ArgumentNullException("CLIENT_ID or CLIENT_SECRET", "CLIENT_ID and CLIENT_SECRET must be set when using Client Credentials Grant");
}

// Else if you got a client id and client secret from us, you should use the GrantType.ClientCredentials like this
authenticator = new ClientCredentialsGrantAuthenticator(
clientId,
clientSecret,
tokenUrl
);
}

var options = new VaasOptions
{
UseCache = true,
UseHashLookup = true,
VaasUrl = VaasUrl,
VaasUrl = vaasUrl,
Timeout = TimeSpan.FromSeconds(300)
};

Expand Down
5 changes: 3 additions & 2 deletions dotnet/examples/VaasExample/VaasExample.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -2,14 +2,15 @@

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<PackageReadmeFile>Readme.md</PackageReadmeFile>
</PropertyGroup>

<ItemGroup>
<PackageReference Include="GDataCyberDefense.Vaas" Version="8.1.10" />
<PackageReference Include="DotNetEnv" Version="3.1.1" />
<PackageReference Include="GDataCyberDefense.Vaas" Version="8.1.11" />
</ItemGroup>

</Project>
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