ASP.NET Core 2.0 开源Git HTTP Server，实现类似 GitHub、GitLab。
GitHub：https://github.com/linezero/GitServer
设置
?"GitSettings": { ???"BasePath": "D:\\Git", ???"GitPath": "git" ?}需要先安装Git,并确保git 命令可以执行，GitPath 可以是 git 的绝对路径。
目前实现的功能
- 创建仓库
- 浏览仓库
- git客户端push pull
- 数据库支持 SQLite、MSSQL、MySQL
- 支持用户管理仓库
更多功能可以查看readme,也欢迎大家贡献支持。
Git交互
LibGit2Sharp 用于操作Git库，实现创建读取仓库信息及删除仓库。
以下是主要代码：
???????public Repository CreateRepository(string name) ???????{ ???????????string path = Path.Combine(Settings.BasePath, name); ???????????Repository repo = new Repository(Repository.Init(path, true)); ???????????return repo; ???????} ???????public Repository CreateRepository(string name, string remoteUrl) ???????{ ???????????var path = Path.Combine(Settings.BasePath, name); ???????????try ???????????{ ???????????????using (var repo = new Repository(Repository.Init(path, true))) ???????????????{ ???????????????????repo.Config.Set("core.logallrefupdates", true); ???????????????????repo.Network.Remotes.Add("origin", remoteUrl, "+refs/*:refs/*"); ???????????????????var logMessage = ""; ???????????????????foreach (var remote in repo.Network.Remotes) ???????????????????{ ???????????????????????IEnumerable<string> refSpecs = remote.FetchRefSpecs.Select(x => x.Specification); ???????????????????????Commands.Fetch(repo, remote.Name, refSpecs, null, logMessage); ???????????????????} ???????????????????return repo; ???????????????} ???????????????????????????} ???????????catch ???????????{ ???????????????try ???????????????{ ???????????????????Directory.Delete(path, true); ???????????????} ???????????????catch { } ???????????????return null; ???????????} ???????} ???????public void DeleteRepository(string name) ???????{ ???????????Exception e = null; ???????????for(int i = 0; i < 3; i++) ???????????{ ???????????????try ???????????????{ ???????????????????string path = Path.Combine(Settings.BasePath, name); ???????????????????Directory.Delete(path, true); ???????????????} ???????????????catch(Exception ex) { e = ex; } ???????????} ???????????if (e != null) ???????????????throw new GitException("Failed to delete repository", e); ???????}执行Git命令
git-upload-pack
git-receive-pack
主要代码 GitCommandResult 实现IActionResult
public async Task ExecuteResultAsync(ActionContext context) ???????{ ???????????HttpResponse response = context.HttpContext.Response; ???????????Stream responseStream = GetOutputStream(context.HttpContext); ???????????string contentType = $"application/x-{Options.Service}"; ???????????if (Options.AdvertiseRefs) ???????????????contentType += "-advertisement"; ???????????response.ContentType = contentType; ???????????response.Headers.Add("Expires", "Fri, 01 Jan 1980 00:00:00 GMT"); ???????????response.Headers.Add("Pragma", "no-cache"); ???????????response.Headers.Add("Cache-Control", "no-cache, max-age=0, must-revalidate"); ???????????ProcessStartInfo info = new ProcessStartInfo(_gitPath, Options.ToString()) ???????????{ ???????????????UseShellExecute = false, ???????????????CreateNoWindow = true, ???????????????RedirectStandardInput = true, ???????????????RedirectStandardOutput = true, ???????????????RedirectStandardError = true ???????????}; ???????????using (Process process = Process.Start(info)) ???????????{ ???????????????GetInputStream(context.HttpContext).CopyTo(process.StandardInput.BaseStream); ???????????????if (Options.EndStreamWithNull) ???????????????????process.StandardInput.Write(‘\0‘); ???????????????process.StandardInput.Dispose(); ???????????????using (StreamWriter writer = new StreamWriter(responseStream)) ???????????????{ ???????????????????if (Options.AdvertiseRefs) ???????????????????{ ???????????????????????string service = $"# service={Options.Service}\n"; ???????????????????????writer.Write($"{service.Length + 4:x4}{service}0000"); ???????????????????????writer.Flush(); ???????????????????} ???????????????????process.StandardOutput.BaseStream.CopyTo(responseStream); ???????????????} ???????????????process.WaitForExit(); ???????????} ???????}BasicAuthentication 基本认证实现
git http 默认的认证为Basic 基本认证，所以这里实现Basic 基本认证。
在ASP.NET Core 2.0 中 Authentication 变化很大之前1.0的一些代码是无法使用。
首先实现 AuthenticationHandler，然后实现 AuthenticationSchemeOptions，创建 BasicAuthenticationOptions。
最主要就是这两个类，下面两个类为辅助类，用于配置和中间件注册。
更多可以查看官方文档
身份验证
https://docs.microsoft.com/zh-cn/aspnet/core/security/authentication/
https://docs.microsoft.com/zh-cn/aspnet/core/migration/1x-to-2x/identity-2x
1 ???public class BasicAuthenticationHandler : AuthenticationHandler<BasicAuthenticationOptions> 2 ????{ 3 ????????public BasicAuthenticationHandler(IOptionsMonitor<BasicAuthenticationOptions> options, ILoggerFactory logger, UrlEncoder encoder, ISystemClock clock) 4 ????????????: base(options, logger, encoder, clock) 5 ????????{ } 6 ????????protected async override Task<AuthenticateResult> HandleAuthenticateAsync() 7 ????????{ 8 ????????????if (!Request.Headers.ContainsKey("Authorization")) 9 ????????????????return AuthenticateResult.NoResult();10 11 ????????????string authHeader = Request.Headers["Authorization"];12 ????????????if (!authHeader.StartsWith("Basic ", StringComparison.OrdinalIgnoreCase))13 ????????????????return AuthenticateResult.NoResult();14 15 ????????????string token = authHeader.Substring("Basic ".Length).Trim();16 ????????????string credentialString = Encoding.UTF8.GetString(Convert.FromBase64String(token));17 ????????????string[] credentials = credentialString.Split(‘:‘);18 19 ????????????if (credentials.Length != 2)20 ????????????????return AuthenticateResult.Fail("More than two strings seperated by colons found");21 22 ????????????ClaimsPrincipal principal = await Options.SignInAsync(credentials[0], credentials[1]);23 24 ????????????if (principal != null)25 ????????????{26 ????????????????AuthenticationTicket ticket = new AuthenticationTicket(principal, new AuthenticationProperties(), BasicAuthenticationDefaults.AuthenticationScheme);27 ????????????????return AuthenticateResult.Success(ticket);28 ????????????}29 30 ????????????return AuthenticateResult.Fail("Wrong credentials supplied");31 ????????}32 ????????protected override Task HandleForbiddenAsync(AuthenticationProperties properties)33 ????????{34 ????????????Response.StatusCode = 403;35 ????????????return base.HandleForbiddenAsync(properties);36 ????????}37 38 ????????protected override Task HandleChallengeAsync(AuthenticationProperties properties)39 ????????{40 ????????????Response.StatusCode = 401;41 ????????????string headerValue = $"{BasicAuthenticationDefaults.AuthenticationScheme} realm=\"{Options.Realm}\"";42 ????????????Response.Headers.Append(Microsoft.Net.Http.Headers.HeaderNames.WWWAuthenticate, headerValue);43 ????????????return base.HandleChallengeAsync(properties);44 ????????}45 ????}46 47 ????public class BasicAuthenticationOptions : AuthenticationSchemeOptions, IOptions<BasicAuthenticationOptions>48 ????{49 ????????private string _realm;50 51 ????????public IServiceCollection ServiceCollection { get; set; }52 ????????public BasicAuthenticationOptions Value => this;53 ????????public string Realm54 ????????{55 ????????????get { return _realm; }56 ????????????set57 ????????????{58 ????????????????_realm = value;59 ????????????}60 ????????}61 62 ????????public async Task<ClaimsPrincipal> SignInAsync(string userName, string password)63 ????????{64 ????????????using (var serviceScope = ServiceCollection.BuildServiceProvider().CreateScope())65 ????????????{66 ????????????????var _user = serviceScope.ServiceProvider.GetService<IRepository<User>>();67 ????????????????var user = _user.List(r => r.Name == userName && r.Password == password).FirstOrDefault();68 ????????????????if (user == null)69 ????????????????????return null;70 ????????????????var identity = new ClaimsIdentity(BasicAuthenticationDefaults.AuthenticationScheme, ClaimTypes.Name, ClaimTypes.Role);71 ????????????????identity.AddClaim(new Claim(ClaimTypes.Name, user.Name));72 ????????????????var principal = new ClaimsPrincipal(identity);73 ????????????????return principal;74 ????????????}75 ????????}76 ????}77 78 ????public static class BasicAuthenticationDefaults79 ????{80 ????????public const string AuthenticationScheme = "Basic";81 ????}82 ????public static class BasicAuthenticationExtensions83 ????{84 ????????public static AuthenticationBuilder AddBasic(this AuthenticationBuilder builder)85 ????????????=> builder.AddBasic(BasicAuthenticationDefaults.AuthenticationScheme, _ => { _.ServiceCollection = builder.Services;_.Realm = "GitServer"; });86 87 ????????public static AuthenticationBuilder AddBasic(this AuthenticationBuilder builder, Action<BasicAuthenticationOptions> configureOptions)88 ????????????=> builder.AddBasic(BasicAuthenticationDefaults.AuthenticationScheme, configureOptions);89 90 ????????public static AuthenticationBuilder AddBasic(this AuthenticationBuilder builder, string authenticationScheme, Action<BasicAuthenticationOptions> configureOptions)91 ????????????=> builder.AddBasic(authenticationScheme, displayName: null, configureOptions: configureOptions);92 93 ????????public static AuthenticationBuilder AddBasic(this AuthenticationBuilder builder, string authenticationScheme, string displayName, Action<BasicAuthenticationOptions> configureOptions)94 ????????{95 ????????????builder.Services.TryAddEnumerable(ServiceDescriptor.Singleton<IOptions<BasicAuthenticationOptions>, BasicAuthenticationOptions>());96 ????????????return builder.AddScheme<BasicAuthenticationOptions, BasicAuthenticationHandler>(authenticationScheme, displayName, configureOptions);97 ????????}98 ????}CookieAuthentication Cookie认证
实现自定义登录，无需identity ，实现注册登录。
主要代码：
启用Cookie
https://github.com/linezero/GitServer/blob/master/GitServer/Startup.cs#L60
services.AddAuthentication(options => ???????????{ ???????????????options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme; ???????????????options.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme; ???????????}).AddCookie(options=> { ???????????????options.AccessDeniedPath = "/User/Login"; ???????????????options.LoginPath = "/User/Login"; ???????????})登录
https://github.com/linezero/GitServer/blob/master/GitServer/Controllers/UserController.cs#L34
???????????????????var identity = new ClaimsIdentity(CookieAuthenticationDefaults.AuthenticationScheme, ClaimTypes.Name, ClaimTypes.Role); ???????????????????identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, user.Name)); ???????????????????identity.AddClaim(new Claim(ClaimTypes.Name, user.Name)); ???????????????????identity.AddClaim(new Claim(ClaimTypes.Email, user.Email)); ???????????????????var principal = new ClaimsPrincipal(identity); ???????????????????await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, principal);
官方文档介绍：https://docs.microsoft.com/zh-cn/aspnet/core/security/authentication/cookie?tabs=aspnetcore2x
部署说明
发布后配置数据库及git目录(可以为绝对地址和命令)、git 仓库目录。
{ ?"ConnectionStrings": { ???"ConnectionType": "Sqlite", //Sqlite,MSSQL,MySQL ???"DefaultConnection": "Filename=gitserver.db" ?}, ?"GitSettings": { ???"BasePath": "D:\\Git", ???"GitPath": "git" ?}}运行后注册账户，登录账户创建仓库，然后根据提示操作，随后git push、git pull 都可以。
ASP.NET Core 开源GitServer 实现自己的GitHub
原文地址：http://www.cnblogs.com/linezero/p/gitserver.html