/// <summary>
/// Check if ngrok present in current directory or Windows PATH variable. If not, download from CDN, and throw exception if download fails
/// </summary>
/// <exception cref="NgrokUnsupportedException">Throws if platform not supported by ngrok</exception>
/// <exception cref="NgrokNotFoundException">Throws if ngrok not found and failed to download from CDN</exception>
/// <returns></returns>
public async Task <string> EnsureNgrokInstalled(NgrokOptions options)
{
bool fileExists = File.Exists(Path.Combine(Directory.GetCurrentDirectory(), "ngrok.exe"));
if (fileExists)
{
return(Path.Combine(Directory.GetCurrentDirectory(), "ngrok.exe"));
}
bool fileInPath = false; // TODO parse this from windows PATH variable if on windows
if (fileInPath)
{
return(""); // TODO get actual path from PATH variable if on windows
}
bool fileInOptions = !string.IsNullOrWhiteSpace(options.NgrokPath) && File.Exists(options.NgrokPath);
if (fileInOptions)
{
return(options.NgrokPath);
}
if (!(fileExists || fileInPath || fileInOptions))
{
await DownloadNgrokAsync();
return("ngrok.exe");
}
throw new NgrokNotFoundException();
}
public static void AddNgrok(this IServiceCollection services, NgrokOptions options = null)
{
services.TryAddSingleton <NgrokProcess>();
services.AddHttpClient <NgrokDownloader>();
services.AddHttpClient <NgrokLocalApiClient>();
services.TryAddSingleton <NgrokOptions>(options ?? new NgrokOptions());
services.AddLogging();
}
public NgrokLocalApiClient(HttpClient httpClient, NgrokProcess ngrokProcess, NgrokOptions options, ILogger <NgrokLocalApiClient> logger)
{
_ngrokApi = httpClient;
_options = options;
_ngrokProcess = ngrokProcess;
_logger = logger;
// TODO some of this can be moved to the DI registration
_ngrokApi.BaseAddress = new Uri("http://localhost:4040");
_ngrokApi.DefaultRequestHeaders.Accept.Clear();
_ngrokApi.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
}
/// <summary>
/// Check if ngrok present in current directory or Windows PATH variable. If not, download from CDN, and throw exception if download fails
/// </summary>
/// <exception cref="NgrokUnsupportedException">Throws if platform not supported by ngrok</exception>
/// <exception cref="NgrokNotFoundException">Throws if ngrok not found and failed to download from CDN</exception>
/// <returns></returns>
public async Task <string> EnsureNgrokInstalled(NgrokOptions options)
{
// Search options
bool fileInOptions = !string.IsNullOrWhiteSpace(options.NgrokPath) && File.Exists(options.NgrokPath);
if (fileInOptions)
{
return(options.NgrokPath);
}
// Search execution directory
bool fileExists = File.Exists(Path.Combine(Directory.GetCurrentDirectory(), "ngrok.exe"));
if (fileExists)
{
return(Path.Combine(Directory.GetCurrentDirectory(), "ngrok.exe"));
}
// Search Windows PATH
var envFullPath = PathExtensions.GetFullPathFromEnvPath("ngrok.exe");
if (!string.IsNullOrWhiteSpace(envFullPath) && File.Exists(envFullPath))
{
return(envFullPath);
}
// Throw exception if not found yet and downloading is disabled
if (!options.DownloadNgrok)
{
throw new NgrokNotFoundException();
}
await DownloadNgrokAsync();
return("ngrok.exe");
}
public static async Task <IEnumerable <Tunnel> > StartNgrokAsyncWorker(IServiceProvider services, NgrokOptions options)
{
// Start Ngrok
var ngrokClient = services.GetRequiredService <NgrokLocalApiClient>();
return(await ngrokClient.StartTunnelsAsync(options.NgrokPath));
}
