protected virtual async Task ResolveFromHttpContextAsync(IBlobEntityResolveContext context, HttpContext httpContext)
{
var result = await GetBlobEntityFromHttpContextOrNullAsync(context, httpContext);
if (result != null)
{
context.EntityType = result.EntityType;
context.EntityId = result.EntityId;
}
}
public override async Task ResolveAsync(IBlobEntityResolveContext context)
{
var httpContext = context.GetHttpContext();
if (httpContext == null)
{
return;
}
try
{
await ResolveFromHttpContextAsync(context, httpContext);
}
catch (Exception e)
{
context.ServiceProvider
.GetRequiredService<ILogger<HttpBlobEntityResolveContributorBase>>()
.LogWarning(e.ToString());
}
}
protected abstract Task<BlobEntityResolveResult> GetBlobEntityFromHttpContextOrNullAsync([NotNull] IBlobEntityResolveContext context, [NotNull] HttpContext httpContext);
protected override Task <BlobEntityResolveResult> GetBlobEntityFromHttpContextOrNullAsync([NotNull] IBlobEntityResolveContext context, [NotNull] HttpContext httpContext)
{
var result = new BlobEntityResolveResult();
try
{
//StreamReader stream = new StreamReader(httpContext.Request.Body);
//string body = stream.ReadToEnd();
//httpContext.Request.EnableBuffering();
using (var reader = new StreamReader(httpContext.Request.Body, System.Text.Encoding.UTF8))
{
reader.BaseStream.Seek(0, SeekOrigin.Begin); //大概是== Request.Body.Position = 0;的意思
var readerStr = reader.ReadToEndAsync().Result;
var input = Newtonsoft.Json.JsonConvert.DeserializeObject <SaveBytesInput>(readerStr);
result.EntityType = input?.EntityType;
result.EntityId = input?.EntityId;
}
}
catch (Exception ex)
{
}
return(Task.FromResult(result));
}
protected override Task <BlobEntityResolveResult> GetBlobEntityFromHttpContextOrNullAsync([NotNull] IBlobEntityResolveContext context, [NotNull] HttpContext httpContext)
{
var result = new BlobEntityResolveResult();
if (httpContext.Request.QueryString.HasValue &&
httpContext.Request.Query.ContainsKey(BlobEntityResolverConsts.EntityTypeKey) &&
httpContext.Request.Query.ContainsKey(BlobEntityResolverConsts.EntityIdKey))
{
result.EntityType = httpContext.Request.Query[BlobEntityResolverConsts.EntityTypeKey].ToString();
result.EntityId = httpContext.Request.Query[BlobEntityResolverConsts.EntityIdKey].ToString();
return(Task.FromResult(result));
}
return(Task.FromResult(result));
}
public abstract Task ResolveAsync(IBlobEntityResolveContext context);
