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Program.cs
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using System.IO.Compression;
using System.Net;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Server.Kestrel.Core;
using Microsoft.Extensions.DependencyInjection;
using System.Runtime.InteropServices;
using McMaster.Extensions.CommandLineUtils;
using System.Linq;
using System.Security.Cryptography.X509Certificates;
using Microsoft.AspNetCore.ResponseCompression;
using System;
namespace Onllama.MyRegistry
{
internal class Program
{
static void Main(string[] args)
{
var hostname = string.Empty;
var isZh = Thread.CurrentThread.CurrentCulture.Name.Contains("zh");
var allowUA = new List<string> {"ollama", "go-http-client"};
var cmd = new CommandLineApplication
{
Name = "Onllama.MyRegistry",
Description = "Onllama.MyRegistry - Running your own Ollama Registry locally." +
Environment.NewLine +
$"Copyright (c) {DateTime.Now.Year} Milkey Tan. Code released under the MIT License"
};
cmd.HelpOption("-?|-h|--help|-he");
var ipOption = cmd.Option<string>("-l|--listen <IPEndPoint>",
isZh ? "监听的地址与端口。" : "Set server listening address and port",
CommandOptionType.SingleValue);
var modelPathOption = cmd.Option<string>("-m|--model <path>",
isZh ? "模型文件路径。" : "Set model path",
CommandOptionType.SingleValue);
var httpsOption = cmd.Option("-s|--https", isZh ? "启用 HTTPS。（默认自签名，不推荐）" : "Set enable HTTPS (Self-signed by default, not recommended)",
CommandOptionType.NoValue);
var compressionOption = cmd.Option("-c|--compression", isZh ? "启用压缩（gzip）" : "Set enable compression (gzip)",
CommandOptionType.NoValue);
var uaOption = cmd.Option("-u", isZh ? "限制客户端 UA" : "Limit client User-Agent",
CommandOptionType.NoValue);
var pemOption = cmd.Option<string>("-pem|--pemfile <FilePath>",
isZh ? "PEM 证书路径。 <./cert.pem>" : "Set your pem certificate file path <./cert.pem>",
CommandOptionType.SingleOrNoValue);
var keyOption = cmd.Option<string>("-key|--keyfile <FilePath>",
isZh ? "PEM 证书密钥路径。 <./cert.key>" : "Set your pem certificate key file path <./cert.key>",
CommandOptionType.SingleOrNoValue);
var hostOption = cmd.Option<string>("-h|--host <Hostname>",
isZh ? "设置允许的主机名。（默认全部允许）" : "Set the allowed host names. (Allow all by default)",
CommandOptionType.SingleOrNoValue); var listen = new IPEndPoint(IPAddress.Any, 80);
var modelPath = Environment.GetEnvironmentVariable("OLLAMA_MODELS") ??
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".ollama",
"models");
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux) &&
Directory.Exists("/usr/share/ollama/.ollama/models") &&
string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("OLLAMA_MODELS")))
modelPath = "/usr/share/ollama/.ollama/models";
cmd.OnExecute(() =>
{
if (httpsOption.HasValue()) listen.Port = 443;
if (ipOption.HasValue()) listen = IPEndPoint.Parse(ipOption.Value());
if (modelPathOption.HasValue()) modelPath = modelPathOption.Value();
if (hostOption.HasValue()) hostname = hostOption.Value();
Console.WriteLine("ModelPath:" + modelPath);
try
{
var host = new WebHostBuilder()
.UseKestrel()
.UseContentRoot(AppDomain.CurrentDomain.SetupInformation.ApplicationBase)
.ConfigureServices(services =>
{
services.AddRouting();
if (compressionOption.HasValue())
{
services.Configure<BrotliCompressionProviderOptions>(options => options.Level = CompressionLevel.Fastest);
services.Configure<GzipCompressionProviderOptions>(options => options.Level = CompressionLevel.Fastest);
services.AddResponseCompression(options =>
{
options.Providers.Add<BrotliCompressionProvider>();
options.Providers.Add<GzipCompressionProvider>();
options.MimeTypes = ResponseCompressionDefaults.MimeTypes.Concat(new[]
{
"application/octet-stream"
});
});
}
})
.ConfigureKestrel(options =>
{
options.Listen(listen,
listenOptions =>
{
listenOptions.Protocols = HttpProtocols.Http1AndHttp2;
if (httpsOption.HasValue()) listenOptions.UseHttps();
if (pemOption.HasValue() && keyOption.HasValue())
listenOptions.UseHttps(X509Certificate2.CreateFromPem(
File.ReadAllText(pemOption.Value()), File.ReadAllText(keyOption.Value())));
});
})
.Configure(app =>
{
app.Map("/v2", svr =>
{
app.UseRouting().UseEndpoints(endpoint =>
{
app.Use(async (context, next) =>
{
Console.WriteLine(context.Request.Path);
await next.Invoke();
});
app.Use(async (context, next) =>
{
if (!string.IsNullOrWhiteSpace(hostname) &&
!string.Equals(context.Request.Host.Host, hostname,
StringComparison.CurrentCultureIgnoreCase))
{
context.Response.StatusCode = 403;
context.Response.ContentType = "text/plain";
await context.Response.WriteAsync("Host Not Found");
return;
}
if (uaOption.HasValue() && !allowUA.Any(x =>
context.Request.Headers.UserAgent.ToString().ToLower().Contains(x)))
{
context.Response.StatusCode = 403;
context.Response.ContentType = "text/plain";
await context.Response.WriteAsync("Unsupported Client");
return;
}
await next.Invoke();
});
endpoint.Map(
"/v2/{repo}/{model}/blobs/{hash}",
async context =>
{
Console.WriteLine("Blobs:" + context.Connection.RemoteIpAddress + "|" + string.Join(
' ', context.Request.Headers.Select(x => x.Key + ":" + x.Value)));
var hash = context.Request.RouteValues["hash"].ToString().Replace(':', '-');
var path = Path.Combine(modelPath, "blobs", hash);
if (File.Exists(path))
{
var fileLength = new FileInfo(path).Length;
context.Response.Headers.Location = context.Request.Path.ToString();
context.Response.ContentType = "application/octet-stream";
context.Response.Headers.AcceptRanges = "bytes";
if (context.Request.Headers.ContainsKey("Range"))
{
var rangeHeader = context.Request.Headers["Range"].ToString();
var range = rangeHeader.Replace("bytes=", "").Split('-');
var start = long.Parse(range[0]);
var end = range.Length > 1 ? long.Parse(range[1]) : fileLength - 1;
var length = end - start + 1;
if (start >= fileLength || end >= fileLength)
{
context.Response.StatusCode =
StatusCodes.Status416RequestedRangeNotSatisfiable;
return;
}
context.Response.ContentLength = length;
context.Response.StatusCode = StatusCodes.Status206PartialContent;
context.Response.Headers.Add("Content-Range",
$"bytes {start}-{end}/{fileLength}");
if (context.Request.Method.ToUpper() != "HEAD")
await context.Response.SendFileAsync(path, start, length);
}
else
{
context.Response.ContentLength = fileLength;
context.Response.StatusCode = StatusCodes.Status200OK;
context.Response.Headers.Add("Content-Disposition",
$"attachment; filename={hash}");
if (context.Request.Method.ToUpper() != "HEAD")
await context.Response.SendFileAsync(path);
}
}
else
context.Response.StatusCode = 404;
});
endpoint.Map(
"/v2/{repo}/{model}/manifests/{tag}",
async context =>
{
Console.WriteLine("Manifests:" + context.Connection.RemoteIpAddress + "|" + string.Join(
' ', context.Request.Headers.Select(x => x.Key + ":" + x.Value)));
var repo = context.Request.RouteValues["repo"].ToString();
var model = context.Request.RouteValues["model"].ToString();
var tag = context.Request.RouteValues["tag"].ToString();
foreach (var path in Directory
.GetDirectories(Path.Combine(modelPath, "manifests")).ToList()
.Select(subs => Path.Combine(subs, repo, model, tag)))
{
if (!File.Exists(path)) continue;
Console.WriteLine("Manifests:" + path);
if (context.Request.Method.ToUpper() != "HEAD")
await context.Response.SendFileAsync(path);
return;
}
context.Response.StatusCode = 404;
});
});
});
}).Build();
host.Run();
}
catch (Exception e)
{
Console.WriteLine(e);
}
});
cmd.Execute(args);
}
}
}