//使用RazorEngine解析 \Themes\[PresentAreaKey]\CustomStyle\css-dark.xml 或 css-light.xml
public override void ProcessRequest(HttpContext context)
{
string presentAreaKey = context.Request.QueryString.GetString("PresentAreaKey", string.Empty);
long ownerId = context.Request.QueryString.Get <long>("OwnerId", 0);
if (string.IsNullOrEmpty(presentAreaKey))
{
WebUtility.Return404(context);
}
CustomStyle customStyle = null;
if (ownerId > 0)
{
CustomStyleEntity entity = new CustomStyleService().Get(presentAreaKey, ownerId);
if (entity == null)
{
WebUtility.Return404(context);
}
customStyle = entity.CustomStyle;
//通过QueryString 传递PresentAreaKey、OwnerId 获取css （使用客户端缓存）
DateTime lastModified = customStyle.LastModified.ToUniversalTime();
if (IsCacheOK(context, lastModified))
{
WebUtility.Return304(context);
return;
}
context.Response.Cache.SetCacheability(HttpCacheability.Private);
context.Response.Cache.SetLastModified(lastModified);
context.Response.Cache.SetETag(lastModified.Ticks.ToString());
context.Response.Cache.SetAllowResponseInBrowserHistory(true);
context.Response.Cache.SetValidUntilExpires(true);
}
else
{
string customStyleJson = context.Request.QueryString.GetString("CustomStyle", string.Empty);
bool isDark = context.Request.QueryString.GetBool("isDark", false);
Dictionary <string, string> dictionary = Json.Decode <Dictionary <string, string> >(customStyleJson) ?? new Dictionary <string, string>();
customStyle = CustomStyle.New();
customStyle.IsDark = isDark;
customStyle.DefinedColours = dictionary;
context.Response.Cache.SetCacheability(HttpCacheability.NoCache);
//通过QueryString 传递PresentAreaKey、CustomStyle的json数据 获取css（自定义风格时使用，禁用客户端缓存）
}
dynamic model = new ExpandoObject();
if (customStyle.DefinedColours.ContainsKey(ColorLabel.PageBackground.ToString()))
{
model.PageBackground = customStyle.DefinedColours[ColorLabel.PageBackground.ToString()];
}
else
{
model.PageBackground = "#f2e3bf";
}
if (customStyle.DefinedColours.ContainsKey(ColorLabel.ContentBackground.ToString()))
{
model.ContentBackground = customStyle.DefinedColours[ColorLabel.ContentBackground.ToString()];
}
else
{
model.ContentBackground = "#f8f0e6";
}
if (customStyle.DefinedColours.ContainsKey(ColorLabel.BorderBackground.ToString()))
{
model.BorderBackground = customStyle.DefinedColours[ColorLabel.BorderBackground.ToString()];
}
else
{
model.BorderBackground = "#ebe6d9";
}
if (customStyle.DefinedColours.ContainsKey(ColorLabel.MainTextColor.ToString()))
{
model.MainTextColor = customStyle.DefinedColours[ColorLabel.MainTextColor.ToString()];
}
else
{
model.MainTextColor = "#666";
}
if (customStyle.DefinedColours.ContainsKey(ColorLabel.SubTextColor.ToString()))
{
model.SubTextColor = customStyle.DefinedColours[ColorLabel.SubTextColor.ToString()];
}
else
{
model.SubTextColor = "#ccc";
}
if (customStyle.DefinedColours.ContainsKey(ColorLabel.MainLinkColor.ToString()))
{
model.MainLinkColor = customStyle.DefinedColours[ColorLabel.MainLinkColor.ToString()];
}
else
{
model.MainLinkColor = "#cc6673";
}
if (customStyle.DefinedColours.ContainsKey(ColorLabel.SubLinkColor.ToString()))
{
model.SubLinkColor = customStyle.DefinedColours[ColorLabel.SubLinkColor.ToString()];
}
else
{
model.SubLinkColor = "#efc0ca";
}
string templateName = "css-dark";
if (customStyle.IsDark)
{
templateName = "css-light";
}
XElement rootElement = XElement.Load(WebUtility.GetPhysicalFilePath(string.Format("~/Themes/{0}/Custom/css-{1}.xml", presentAreaKey, customStyle.IsDark ? "dark" : "light")));
try
{
//编译模板
string result = Razor.Parse(rootElement.Value, model, templateName);
context.Response.Clear();
context.Response.ContentType = "text/css";
StreamWriter sw = new StreamWriter(context.Response.OutputStream, System.Text.Encoding.Default);
sw.Write(result);
sw.Flush();
}
catch (Exception ex)
{
context.Response.Write(ex.ToString());
}
}
