/// <summary>响应</summary>
/// <param name="context"></param>
/// <param name="attachment"></param>
/// <param name="stream"></param>
/// <param name="dispositionMode"></param>
protected virtual void OnResponse(HttpContext context, IAttachment attachment, Stream stream, String dispositionMode)
{
var wd = new WebDownload();
wd.Stream = stream;
wd.FileName = attachment.FileName;
if (!String.IsNullOrEmpty(dispositionMode))
{
wd.Mode = WebDownload.ParseMode(dispositionMode);
}
if (!String.IsNullOrEmpty(attachment.ContentType))
{
wd.ContentType = attachment.ContentType;
}
if (BrowserCache)
{
wd.BrowserCache = true;
wd.ModifyTime = attachment.UploadTime;
wd.BrowserCacheMaxAge = BrowserCacheMaxAge;
}
OnReader(wd);
wd.Render();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
AvatarSize avatarSize;
switch (DNTRequest.GetString("size").ToLower())
{
case "large":
avatarSize = AvatarSize.Large;
break;
case "medium":
avatarSize = AvatarSize.Medium;
break;
case "small":
avatarSize = AvatarSize.Small;
break;
default:
avatarSize = AvatarSize.Medium;
break;
}
var uid = DNTRequest.GetInt("uid");
// 如果物理文件存在，直接返回
var fi = Avatars.GetPhysicsAvatarPath(uid + "", avatarSize);
// 如果没有缓存，文件也不在，那么直接返回默认
if (!File.Exists(fi))
{
fi = Utils.GetMapPath(BaseConfigs.GetForumPath.CombinePath("avatars/avatar_" + avatarSize.ToString().ToLower() + ".jpg"));
}
if (File.Exists(fi))
{
var ci = GetData(fi);
// 检查缓存是否有效
var wd = new WebDownload();
wd.BrowserCache = true;
wd.ModifyTime = ci.ModifyTime;
if (wd.CheckCache())
{
return;
}
wd.Stream = new MemoryStream(ci.Data);
//wd.Mode = WebDownload.DispositionMode.Inline;
wd.ContentType = "image/" + Path.GetExtension(fi).TrimStart('.');
// 启用浏览器缓存
wd.BrowserCache = true;
wd.Speed = 0;
wd.Render();
return;
}
//var avatarUrl = Avatars.GetAvatarUrl(uid + "", avatarSize);
//XTrace.WriteLine("头像{0}未取到，跳转地址 {1}", fi, avatarUrl);
//HttpContext.Current.Response.Redirect(avatarUrl);
}
