/// <summary>
/// 加载资源
/// </summary>
/// <param name="dashboardContext"></param>
/// <returns></returns>
public async Task LoadAsync(VirtualFileContext dashboardContext)
{
if (dashboardContext == null)
{
throw new ArgumentNullException(nameof(dashboardContext));
}
if (string.IsNullOrWhiteSpace(dashboardContext.ResourcesName))
{
throw new ArgumentNullException(nameof(dashboardContext.ResourcesName));
}
//加载程序集 获取指定的资源
using (var resourcesStream = assembly.GetManifestResourceStream(dashboardContext.ResourcesName))
{
if (resourcesStream == null)
{
return;
}
//添加响应类型
dashboardContext.HttpContext.Response.ContentType = dashboardContext.ContentType;
//设置缓存时间
dashboardContext.HttpContext.Response.GetTypedHeaders().CacheControl = new Microsoft.Net.Http.Headers.CacheControlHeaderValue
{
Public = true,
MaxAge = TimeSpan.FromMinutes(30)
};
await resourcesStream.CopyToAsync(dashboardContext.HttpContext.Response.Body);
}
}
/// <summary>
///
/// </summary>
/// <param name="httpContext"></param>
/// <param name="configurationOptions"></param>
/// <returns></returns>
public async Task InvokeAsync(HttpContext httpContext, IOptions <VirtualFileOptions> configurationOptions)
{
try
{
//匹配路由
if (!httpContext.Request.Path.StartsWithSegments(configurationOptions.Value.RequestPath, out PathString matched, out PathString remaining))
{
await next(httpContext);
return;
}
//获取面板路由服务
var virtualFileResource = httpContext.RequestServices.GetService <IVirtualFileResource>();
//接收请求地址
var requestPath = httpContext.Request.Path;
//路由集合服务
var routeCollections = httpContext.RequestServices.GetService <IVirtualFileRouteCollections>();
//验证当前文件是否存在
var resourceInfo = routeCollections.Get(requestPath);
if (resourceInfo == null)
{
await next(httpContext);
return;
}
//设置上下文
var virtualFileContext = new VirtualFileContext(virtualFileResource.GetContentResourceName(resourceInfo.Item1, virtualFileResource.GetFileName(requestPath, resourceInfo.Item1)), resourceInfo.Item2, httpContext);
//授权过滤器
var authorizationList = configurationOptions.Value?.Authorization;
if (authorizationList != null && authorizationList.Count() > 0)
{
//授权处理
foreach (var item in authorizationList)
{
if ((await item.AuthorizationAsync(virtualFileContext)))
{
continue;
}
else
{
httpContext.Response.StatusCode = Convert.ToInt32(HttpStatusCode.Unauthorized);
return;
}
}
}
//资源渲染服务
var virtualFileRender = httpContext.RequestServices.GetService <IVirtualFileRender>();
//处理响应
await virtualFileRender.LoadAsync(virtualFileContext);
}
catch (Exception ex)
{
var errorMsg = Encoding.UTF8.GetBytes(ex.Message);
await httpContext.Response.Body.WriteAsync(errorMsg, 0, errorMsg.Length);
}
}
