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| 1 | +using System.Net; |
| 2 | +using System.Net.Sockets; |
| 3 | +using System.Net.Security; |
| 4 | +using System.Security.Cryptography.X509Certificates; |
| 5 | +using System.Text; |
| 6 | +using Newtonsoft.Json; |
| 7 | +using System.Security.Cryptography; |
| 8 | +using System.IO.Compression; |
| 9 | + |
| 10 | +public class FileBackedTcpListener |
| 11 | +{ |
| 12 | + private readonly X509Certificate2 _certificate; |
| 13 | + private readonly string _packageDirectory; |
| 14 | + private readonly TcpListener _tcpListener; |
| 15 | + private readonly string _uri; |
| 16 | + |
| 17 | + public FileBackedTcpListener(string packageDirectory, X509Certificate2 certificate) |
| 18 | + { |
| 19 | + _packageDirectory = packageDirectory; |
| 20 | + _certificate = certificate; |
| 21 | + _tcpListener = new TcpListener(IPAddress.Loopback, 44444); // 0 for any available port |
| 22 | + _tcpListener.Start(); |
| 23 | + _uri = $"https://{_tcpListener.LocalEndpoint}/"; |
| 24 | + } |
| 25 | + |
| 26 | + // Starts the server and waits for client requests |
| 27 | + public async Task StartServer() |
| 28 | + { |
| 29 | + Console.WriteLine($"Server started. Listening on {_tcpListener.LocalEndpoint}"); |
| 30 | + |
| 31 | + while (true) |
| 32 | + { |
| 33 | + Console.WriteLine("Waiting for client connection..."); |
| 34 | + var client = await _tcpListener.AcceptTcpClientAsync(); |
| 35 | + Console.WriteLine("Client connected."); |
| 36 | + |
| 37 | + // Handling client in a new task to allow multiple client connections |
| 38 | + _ = Task.Run(() => HandleClient(client)); |
| 39 | + } |
| 40 | + } |
| 41 | + |
| 42 | + private async Task HandleClient(TcpClient client) |
| 43 | + { |
| 44 | + using (client) |
| 45 | + using (var sslStream = new SslStream(client.GetStream(), false)) |
| 46 | + { |
| 47 | + try |
| 48 | + { |
| 49 | + await sslStream.AuthenticateAsServerAsync(_certificate, clientCertificateRequired: false, checkCertificateRevocation: true); |
| 50 | + } |
| 51 | + catch (Exception ex) |
| 52 | + { |
| 53 | + Console.WriteLine($"{ex.Message}"); |
| 54 | + } |
| 55 | + using (var reader = new StreamReader(sslStream, Encoding.ASCII, false, 128)) |
| 56 | + using (var writer = new StreamWriter(sslStream, Encoding.ASCII, 128, false)) |
| 57 | + { |
| 58 | + try |
| 59 | + { |
| 60 | + var requestLine = await reader.ReadLineAsync(); |
| 61 | + var requestParts = requestLine?.Split(' '); |
| 62 | + if (requestParts == null || requestParts.Length < 2) |
| 63 | + { |
| 64 | + throw new InvalidOperationException("Invalid HTTP request line."); |
| 65 | + } |
| 66 | + Console.WriteLine($"bout to check {requestParts[0]} and {requestParts[1]}"); |
| 67 | + string method = requestParts[0]; |
| 68 | + string rawUrl = requestParts[1]; |
| 69 | + |
| 70 | + string path = requestParts[1]; |
| 71 | + var parts = path.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries); |
| 72 | + if (path == "/v3/index.json") |
| 73 | + { |
| 74 | + SendIndexJsonResponse(writer); |
| 75 | + } |
| 76 | + else if (parts.Length > 1 && parts[0] == "v3") |
| 77 | + { |
| 78 | + if (parts[1] == "package") |
| 79 | + { |
| 80 | + if (parts.Length == 4) |
| 81 | + { |
| 82 | + ProcessPackageRequest(parts[2], writer); |
| 83 | + } |
| 84 | + else |
| 85 | + { |
| 86 | + SendPackageFile(parts[2], parts[3], parts[4], writer, sslStream); |
| 87 | + } |
| 88 | + } |
| 89 | + else |
| 90 | + { |
| 91 | + await writer.WriteLineAsync("HTTP/1.1 404 Not Found"); |
| 92 | + } |
| 93 | + } |
| 94 | + else |
| 95 | + { |
| 96 | + await writer.WriteLineAsync("HTTP/1.1 404 Not Found"); |
| 97 | + } |
| 98 | + } |
| 99 | + catch (Exception ex) |
| 100 | + { |
| 101 | + // Handle exception |
| 102 | + Console.WriteLine("Error processing request: " + ex.Message); |
| 103 | + } |
| 104 | + } |
| 105 | + } |
| 106 | + } |
| 107 | + |
| 108 | + private void ProcessPackageRequest(string id, StreamWriter writer) |
| 109 | + { |
| 110 | + try |
| 111 | + { |
| 112 | + var versions = GetVersionsFromDirectory(id); |
| 113 | + |
| 114 | + var json = JsonConvert.SerializeObject(new { versions }); |
| 115 | + writer.WriteLine("HTTP/1.1 200 OK"); |
| 116 | + writer.WriteLine("Content-Type: application/json"); |
| 117 | + writer.WriteLine(); |
| 118 | + writer.WriteLine(json); |
| 119 | + writer.Flush(); |
| 120 | + } |
| 121 | + catch (Exception ex) |
| 122 | + { |
| 123 | + Console.WriteLine($"Error processing request: {ex.Message}"); |
| 124 | + } |
| 125 | + } |
| 126 | + |
| 127 | + private void SendPackageFile(string id, string version, string nupkg, StreamWriter writer, SslStream sslStream) |
| 128 | + { |
| 129 | + var filePath = Path.Combine(_packageDirectory, id, version, nupkg); |
| 130 | + |
| 131 | + if (!File.Exists(filePath)) |
| 132 | + { |
| 133 | + writer.WriteLine("HTTP/1.1 404 Not Found"); |
| 134 | + return; |
| 135 | + } |
| 136 | + |
| 137 | + using (var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read)) |
| 138 | + { |
| 139 | + writer.WriteLine("HTTP/1.1 200 OK"); |
| 140 | + writer.WriteLine("Content-Type: application/octet-stream"); |
| 141 | + writer.WriteLine($"Content-Disposition: attachment; filename=\"{id}.{version}.nupkg\""); |
| 142 | + writer.WriteLine($"Content-Length: {new FileInfo(filePath).Length}"); |
| 143 | + writer.WriteLine(); |
| 144 | + writer.Flush(); |
| 145 | + |
| 146 | + fileStream.CopyTo(sslStream); |
| 147 | + } |
| 148 | + } |
| 149 | + |
| 150 | + private string[] GetVersionsFromDirectory(string id) |
| 151 | + { |
| 152 | + var directoryPath = Path.Combine(_packageDirectory, id); |
| 153 | + if (!Directory.Exists(directoryPath)) |
| 154 | + { |
| 155 | + throw new DirectoryNotFoundException($"Directory not found: {directoryPath}"); |
| 156 | + } |
| 157 | + |
| 158 | + var dirInfo = new DirectoryInfo(directoryPath); |
| 159 | + return dirInfo.GetDirectories().Select(d => d.Name).ToArray(); |
| 160 | + } |
| 161 | + |
| 162 | + private void SendIndexJsonResponse(StreamWriter writer) |
| 163 | + { |
| 164 | + var indexResponse = new |
| 165 | + { |
| 166 | + version = "3.0.0", |
| 167 | + resources = new object[] |
| 168 | + { |
| 169 | + new Resource { Type = "SearchQueryService", Id = $"{_uri}v3/query" }, |
| 170 | + new Resource { Type = "RegistrationsBaseUrl", Id = $"{_uri}v3/registration" }, |
| 171 | + new Resource { Type = "PackageBaseAddress/3.0.0", Id = $"{_uri}v3/package" }, |
| 172 | + new Resource { Type = "PackagePublish/2.0.0", Id = $"{_uri}v3/packagepublish" } |
| 173 | + } |
| 174 | + }; |
| 175 | + |
| 176 | + string jsonResponse = JsonConvert.SerializeObject(indexResponse); |
| 177 | + |
| 178 | + writer.WriteLine("HTTP/1.1 200 OK"); |
| 179 | + writer.WriteLine("Content-Type: application/json"); |
| 180 | + writer.WriteLine(); |
| 181 | + writer.WriteLine(jsonResponse); |
| 182 | + writer.Flush(); |
| 183 | + } |
| 184 | + |
| 185 | + public static void Main(string[] args) |
| 186 | + { |
| 187 | + X509Certificate2 certificate = GenerateSelfSignedCertificate(); |
| 188 | + string packageDirectory = "packages/abcdefghijkl/1.0.0"; |
| 189 | + |
| 190 | + if (!Directory.Exists(packageDirectory)) |
| 191 | + { |
| 192 | + Directory.CreateDirectory(packageDirectory); |
| 193 | + } |
| 194 | + |
| 195 | + // Create test.nuspec file |
| 196 | + string nuspecPath = Path.Combine(packageDirectory, "abcdefghijkl.nuspec"); |
| 197 | + File.WriteAllText(nuspecPath, @" |
| 198 | +<package> |
| 199 | + <metadata> |
| 200 | + <id>abcdefghijkl</id> |
| 201 | + <version>1.0.0</version> |
| 202 | + <description>Testing</description> |
| 203 | + <authors>NuGetTest</authors> |
| 204 | + <title /> |
| 205 | + </metadata> |
| 206 | +</package>"); |
| 207 | + |
| 208 | + // Create the .nupkg file |
| 209 | + string nupkgPath = Path.Combine(packageDirectory, "abcdefghijkl.1.0.0.nupkg"); |
| 210 | + if (File.Exists(nupkgPath)) |
| 211 | + { |
| 212 | + File.Delete(nupkgPath); |
| 213 | + } |
| 214 | + using (var archive = ZipFile.Open(nupkgPath, ZipArchiveMode.Create)) |
| 215 | + { |
| 216 | + archive.CreateEntryFromFile(nuspecPath, "abcdefghijkl.nuspec"); |
| 217 | + } |
| 218 | + |
| 219 | + // Delete the nuspec file after creating the .nupkg file |
| 220 | + File.Delete(nuspecPath); |
| 221 | + |
| 222 | + var listener = new FileBackedTcpListener("./packages/", certificate); |
| 223 | + listener.StartServer().Wait(); |
| 224 | + } |
| 225 | + |
| 226 | + private static X509Certificate2 GenerateSelfSignedCertificate() |
| 227 | + { |
| 228 | + using (var rsa = RSA.Create(2048)) |
| 229 | + { |
| 230 | + var request = new CertificateRequest("cn=test", rsa, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1); |
| 231 | + var start = DateTime.UtcNow; |
| 232 | + var end = DateTime.UtcNow.AddYears(1); |
| 233 | + var cert = request.CreateSelfSigned(start, end); |
| 234 | + var certBytes = cert.Export(X509ContentType.Pfx, "password"); |
| 235 | + |
| 236 | + return new X509Certificate2(certBytes, "password", X509KeyStorageFlags.Exportable); |
| 237 | + } |
| 238 | + } |
| 239 | +} |
| 240 | + |
| 241 | +public class Resource |
| 242 | +{ |
| 243 | + [JsonProperty("@type")] |
| 244 | + public string Type { get; set; } |
| 245 | + |
| 246 | + [JsonProperty("@id")] |
| 247 | + public string Id { get; set; } |
| 248 | +} |
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