ServiceStack/src/ServiceStack/AppHostBase.NetCore.cs at master · csharpbuilder/ServiceStack · GitHub

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#if NETSTANDARD2_0

using System;

using System.IO;

using System.Reflection;

using System.Threading.Tasks;

using ServiceStack.Web;

using ServiceStack.Logging;

using ServiceStack.NetCore;

using ServiceStack.Host;

using ServiceStack.Host.NetCore;

using ServiceStack.Host.Handlers;

using Microsoft.AspNetCore.Builder;

using Microsoft.AspNetCore.Http;

using Microsoft.Extensions.Logging;

using Microsoft.AspNetCore.Hosting;

using Microsoft.Extensions.DependencyInjection;

using ServiceStack.Configuration;

using ServiceStack.IO;

namespace ServiceStack

{

public abstract class AppHostBase : ServiceStackHost

{

protected AppHostBase(string serviceName, params Assembly[] assembliesWithServices)

: base(serviceName, assembliesWithServices)

{

Platforms.PlatformNetCore.HostInstance = this;

}

IApplicationBuilder app;

public virtual void Bind(IApplicationBuilder app)

{

this.app = app;

BindHost(this, app);

app.Use(ProcessRequest);

}

public static void BindHost(ServiceStackHost appHost, IApplicationBuilder app)

{

var logFactory = app.ApplicationServices.GetService<ILoggerFactory>();

if (logFactory != null)

{

LogManager.LogFactory = new NetCoreLogFactory(logFactory);

}

appHost.Container.Adapter = new NetCoreContainerAdapter(app.ApplicationServices);

}

/// <summary>

/// The FilePath used in Virtual File Sources

/// </summary>

public override string GetWebRootPath()

{

if (app == null)

return base.GetWebRootPath();

var env = app.ApplicationServices.GetService<IHostingEnvironment>();

return env.WebRootPath ?? env.ContentRootPath;

}

public override void OnConfigLoad()

{

base.OnConfigLoad();

if (app != null)

{

//Initialize VFS

var env = app.ApplicationServices.GetService<IHostingEnvironment>();

Config.WebHostPhysicalPath = env.ContentRootPath;

Config.DebugMode = env.IsDevelopment();

//Set VirtualFiles to point to ContentRootPath (Project Folder)

VirtualFiles = new FileSystemVirtualFiles(env.ContentRootPath);

RegisterLicenseFromAppSettings(AppSettings);

}

public static void RegisterLicenseFromAppSettings(IAppSettings appSettings)

{

//Automatically register license key stored in <appSettings/>

var licenceKeyText = appSettings.GetString(NetStandardPclExport.AppSettingsKey);

if (!string.IsNullOrEmpty(licenceKeyText))

{

LicenseUtils.RegisterLicense(licenceKeyText);

}

public Func<HttpContext, Task<bool>> NetCoreHandler { get; set; }

public virtual async Task ProcessRequest(HttpContext context, Func<Task> next)

{

if (NetCoreHandler != null)

{

var handled = await NetCoreHandler(context);

if (handled)

return;

}

//Keep in sync with Kestrel/AppSelfHostBase.cs

var operationName = context.Request.GetOperationName().UrlDecode() ?? "Home";

var pathInfo = context.Request.Path.HasValue

? context.Request.Path.Value

: "/";

var mode = Config.HandlerFactoryPath;

if (!string.IsNullOrEmpty(mode))

{

var includedInPathInfo = pathInfo.IndexOf(mode, StringComparison.Ordinal) == 1;

var includedInPathPase = context.Request.PathBase.HasValue &&

context.Request.PathBase.Value.IndexOf(mode, StringComparison.Ordinal) == 1;

if (!includedInPathInfo && !includedInPathPase)

{

await next();

return;

}

if (includedInPathInfo)

pathInfo = pathInfo.Substring(mode.Length + 1);

}

RequestContext.Instance.StartRequestContext();

NetCoreRequest httpReq;

IResponse httpRes;

System.Web.IHttpHandler handler;

try

{

httpReq = new NetCoreRequest(context, operationName, RequestAttributes.None, pathInfo);

httpReq.RequestAttributes = httpReq.GetAttributes() | RequestAttributes.Http;

httpRes = httpReq.Response;

handler = HttpHandlerFactory.GetHandler(httpReq);

}

catch (Exception ex) //Request Initialization error

{

var logFactory = context.Features.Get<ILoggerFactory>();

if (logFactory != null)

{

var log = logFactory.CreateLogger(GetType());

log.LogError(default(EventId), ex, ex.Message);

}

context.Response.ContentType = MimeTypes.PlainText;

await context.Response.WriteAsync($"{ex.GetType().Name}: {ex.Message}");

if (Config.DebugMode)

await context.Response.WriteAsync($"\nStackTrace:\n{ex.StackTrace}");

return;

}

if (handler is IServiceStackHandler serviceStackHandler)

{

if (serviceStackHandler is NotFoundHttpHandler)

{

await next();

return;

}

if (!string.IsNullOrEmpty(serviceStackHandler.RequestName))

operationName = serviceStackHandler.RequestName;

if (serviceStackHandler is RestHandler restHandler)

{

httpReq.OperationName = operationName = restHandler.RestPath.RequestType.GetOperationName();

}

try

{

await serviceStackHandler.ProcessRequestAsync(httpReq, httpRes, operationName);

}

catch (Exception ex)

{

var logFactory = context.Features.Get<ILoggerFactory>();

if (logFactory != null)

{

var log = logFactory.CreateLogger(GetType());

log.LogError(default(EventId), ex, ex.Message);

}

finally

{

httpRes.Close();

}

//Matches Exceptions handled in HttpListenerBase.InitTask()

return;

}

await next();

}

public override string MapProjectPath(string relativePath)

{

var env = app?.ApplicationServices.GetService<IHostingEnvironment>();

if (env?.ContentRootPath != null && relativePath?.StartsWith("~") == true)

return Path.GetFullPath(env.ContentRootPath.CombineWith(relativePath.Substring(1)));

return relativePath.MapHostAbsolutePath();

}

public override IRequest TryGetCurrentRequest()

{

return GetOrCreateRequest(app.ApplicationServices.GetService<IHttpContextAccessor>());

}

/// <summary>

/// Creates an IRequest from IHttpContextAccessor if it's been registered as a singleton

/// </summary>

public static IRequest GetOrCreateRequest(IHttpContextAccessor httpContextAccessor)

{

return GetOrCreateRequest(httpContextAccessor?.HttpContext);

}

public static IRequest GetOrCreateRequest(HttpContext httpContext)

{

if (httpContext != null)

{

if (httpContext.Items.TryGetValue(Keywords.IRequest, out var oRequest))

return (IRequest) oRequest;

var req = httpContext.ToRequest();

httpContext.Items[Keywords.IRequest] = req;

return req;

}

return null;

}

protected override void Dispose(bool disposing)

{

base.Dispose(disposing);

LogManager.LogFactory = null;

}

public static class NetCoreAppHostExtensions

{

public static IApplicationBuilder UseServiceStack(this IApplicationBuilder app, AppHostBase appHost)

{

appHost.Bind(app);

appHost.Init();

return app;

}

public static IApplicationBuilder Use(this IApplicationBuilder app, System.Web.IHttpAsyncHandler httpHandler)

{

return app.Use(httpHandler.Middleware);

}

public static IHttpRequest ToRequest(this HttpContext httpContext, string operationName = null)

{

var req = new NetCoreRequest(httpContext, operationName, RequestAttributes.None);

req.RequestAttributes = req.GetAttributes() | RequestAttributes.Http;

return req;

}

public static IHttpRequest ToRequest(this HttpRequest request, string operationName = null) => request.HttpContext.ToRequest();

}

#endif

ServiceStack/src/ServiceStack/AppHostBase.NetCore.cs at master · csharpbuilder/ServiceStack · GitHub

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