public static void Delete(BlogSystemContext dataBaseContext, IHostingEnvironment hostingEnvironment,
IEnumerable <Guid> deleteGuid)
{
deleteGuid.ToList().ForEach(e =>
{
var template = dataBaseContext.Templates.FirstOrDefault(q => q.Guid == e);
if (template == null)
{
return;
}
var uploadUnit = new UploadUnit(dataBaseContext, hostingEnvironment);
//清除所有模板文件
dataBaseContext.TemplateFiles
.Where(t => t.TemplateGuid == template.Guid)
.Select(o => o.Guid)
.ToList().ForEach(d =>
{
var templateFile = dataBaseContext.TemplateFiles.FirstOrDefault(q => q.Guid == d);
if (templateFile == null)
{
return;
}
var uploadedFileGuid = templateFile.UploadedFileGuid;
dataBaseContext.TemplateFiles.Remove(templateFile);
uploadUnit.CheckAndDeleteFile(uploadedFileGuid);
});
dataBaseContext.Templates.Remove(template);
});
}
public static void Delete(BlogSystemContext dataBaseContext, IHostingEnvironment hostingEnvironment,
IEnumerable <Guid> deleteGuid)
{
var uploadUnit = new UploadUnit(dataBaseContext, hostingEnvironment);
deleteGuid.ToList().ForEach(d =>
{
var article = dataBaseContext.Articles.FirstOrDefault(q => q.Guid == d);
if (article == null)
{
return;
}
dataBaseContext.Articles.Remove(article);
});
}
public static List <Guid> Delete(BlogSystemContext dataBaseContext, IHostingEnvironment hostingEnvironment,
IEnumerable <Guid> deleteGuid)
{
var templateGuids = new List <Guid>();
var uploadUnit = new UploadUnit(dataBaseContext, hostingEnvironment);
deleteGuid.ToList().ForEach(d =>
{
var templateFile = dataBaseContext.TemplateFiles.FirstOrDefault(q => q.Guid == d);
if (templateFile == null)
{
return;
}
var uploadedFileGuid = templateFile.UploadedFileGuid;
dataBaseContext.TemplateFiles.Remove(templateFile);
uploadUnit.CheckAndDeleteFile(uploadedFileGuid);
templateGuids.Add(templateFile.Guid);
});
return(templateGuids);
}
public async Task InvokeAsync(HttpContext context, BlogSystemContext dataBaseContext,
IOptions <SiteOptions> options, IHostingEnvironment hostingEnvironment, IDistributedCache cache)
{
var requestUrl = HttpUtility.UrlDecode(context.Request.Path);
//如果路径不是以/blog就跳过
if (!requestUrl.ToLower().StartsWith("/blog", StringComparison.Ordinal))
{
await _next(context);
return;
}
//如果没有设置模板直接返回404
Guid?templateGuid;
try
{
if ((templateGuid = new ConfigUnit(dataBaseContext, cache).TemplateGuid) == null)
{
context.Response.StatusCode = 404;
return;
}
}
catch (NotDataBaseException)
{
//数据库不存在，跳转到初始化页面
context.Response.Redirect(options.Value.GetAdminUrl("Setup", context.Request.PathBase));
return;
}
requestUrl = requestUrl.Remove(0, 5);
if (string.IsNullOrEmpty(requestUrl))
{
requestUrl = "/";
}
var templateFile =
GetUploadedFile(GetUploadedFiles(dataBaseContext, cache, templateGuid.Value), requestUrl);
if (templateFile == null)
{
await _next(context);
return;
}
var uploadUnit = new UploadUnit(dataBaseContext, hostingEnvironment);
var enableGzip = false;
var acceptEncoding = context.Request.Headers["Accept-Encoding"].FirstOrDefault();
if (acceptEncoding != null && acceptEncoding.Split(',').Any(q => q == "gzip"))
{
enableGzip = true;
}
var fileInfo = uploadUnit.GetFileInfo(templateFile.UploadedFile, enableGzip);
if (fileInfo == null || !fileInfo.Exists)
{
enableGzip = !enableGzip;
fileInfo = uploadUnit.GetFileInfo(templateFile.UploadedFile, enableGzip);
if (fileInfo == null || !fileInfo.Exists)
{
context.Response.StatusCode = 404;
return;
}
}
//向Cookie添加站点设置信息
context.Response.Cookies.Append("SimpleBlog_Settings", JsonConvert.SerializeObject(new
{
adminUrl = options.Value.GetAdminUrl(string.Empty, context.Request.PathBase),
apiUrl = options.Value.GetApiUrl(string.Empty, context.Request.PathBase)
}), new CookieOptions()
{
HttpOnly = false,
Path = string.IsNullOrEmpty(options.Value.HomeUrl)
? options.Value.GetHomeUrl(string.Empty, context.Request.PathBase)
: "/"
});
context.Response.ContentType = templateFile.MIME;
context.Response.ContentLength = fileInfo.Length;
if (enableGzip)
{
context.Response.Headers.Add("Content-Encoding", "gzip");
}
context.Response.Headers.Add("Content-Disposition",
$"{(context.Request.Query["download"].Any() ? "attachment;" : string.Empty)}filename*={Encoding.Default.BodyName}''{HttpUtility.UrlEncode(templateFile.Name)}");
await context.Response.SendFileAsync(fileInfo.FullName);
}