private static string Get(cmSite site, string lang, string path)
{
if (site == null)
{
site = SiteManager.Current;
}
if (string.IsNullOrEmpty(lang))
{
lang = MultilingualMgr.GetCurrentCulture();
}
string cacheKey = string.Format("snippet_{0}_{1}_{2}", site.DistinctName, lang, path);
string value = HttpRuntime.Cache[cacheKey] as string;
if (value != null)
{
return(value);
}
PreparsedContent preparsedContent = GetPreparsedContent(site, path);
StringBuilder content = new StringBuilder();
int startIndex = 0;
int endIndex = 0;
int nextTagIndex = 0;
PreparsedContentTag tag = null;
if (!string.IsNullOrEmpty(preparsedContent.Content))
{
for (; ;)
{
if (nextTagIndex < preparsedContent.Tags.Count)
{
tag = preparsedContent.Tags[nextTagIndex];
endIndex = tag.StartIndex;
}
else
{
tag = null;
endIndex = preparsedContent.Content.Length;
}
if (endIndex > startIndex)
{
content.Append(preparsedContent.Content.Substring(startIndex, endIndex - startIndex));
}
if (tag == null)
{
break;
}
string metadata = Metadata.Get(site, tag.MetadataPath, lang);
switch (tag.Method)
{
case "htmlencode":
content.Append(metadata.SafeHtmlEncode());
break;
case "scriptencode":
content.Append(metadata.SafeJavascriptStringEncode());
break;
default:
content.Append(metadata);
break;
}
startIndex = tag.StartIndex + tag.Length;
nextTagIndex++;
}
}
HttpRuntime.Cache.Insert(cacheKey
, content
, new CacheDependencyEx(preparsedContent.DependedFiles.ToArray(), false)
, Cache.NoAbsoluteExpiration
, Cache.NoSlidingExpiration
, CacheItemPriority.NotRemovable
, null
);
return(content.ToString());
}
private static PreparsedContent GetPreparsedContent(cmSite site, string path)
{
string cacheKey = string.Format("snippet_{0}_preparsed_{1}", site.DistinctName, path);
PreparsedContent preparsedContent = HttpRuntime.Cache[cacheKey] as PreparsedContent;
if (preparsedContent != null)
{
return(preparsedContent);
}
preparsedContent = new PreparsedContent();
List <string> paths = new List <string>();
paths.Add(string.Format(CultureInfo.InvariantCulture, "~/Views/{0}/{1}", site.DistinctName, path.TrimStart('/')));
if (!string.IsNullOrEmpty(site.TemplateDomainDistinctName))
{
paths.Add(string.Format(CultureInfo.InvariantCulture, "~/Views/{0}/{1}", site.TemplateDomainDistinctName, path.TrimStart('/')));
}
string content = null;
foreach (string relativePath in paths)
{
string physicalPath = HostingEnvironment.MapPath(relativePath);
preparsedContent.DependedFiles.Add(physicalPath);
content = WinFileIO.ReadWithoutLock(physicalPath);
if (content == null)
{
continue;
}
break;
}
if (!string.IsNullOrEmpty(content))
{
// remove comments
content = Regex.Replace(content
, @"(\<\!\-\-)(.*?)(\-\-\>)"
, string.Empty
, RegexOptions.Compiled | RegexOptions.CultureInvariant | RegexOptions.Singleline
);
preparsedContent.Content = content;
// parse tags
string currentMetadataPath = Regex.Replace(path
, @"(\/[^\/]+)$"
, delegate(Match m) { return(string.Format(CultureInfo.InvariantCulture, "/_{0}", Regex.Replace(m.ToString().TrimStart('/'), @"[^\w\-_]", "_", RegexOptions.Compiled))); }
, RegexOptions.Compiled);
MatchCollection matches = Regex.Matches(content
, @"\[(\s*)metadata(\s*)\:(\s*)(?<method>((htmlencode)|(scriptencode)|(value)))(\s*)\((\s*)(?<path>(\w|\/|\-|\_|\.)+)(\s*)\)(\s*)\]"
, RegexOptions.Multiline | RegexOptions.ECMAScript | RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant
);
foreach (Match match in matches)
{
PreparsedContentTag tag = new PreparsedContentTag()
{
StartIndex = match.Index,
Length = match.Length,
Method = match.Groups["method"].Value.ToLowerInvariant(),
MetadataPath = Metadata.ResolvePath(currentMetadataPath, match.Groups["path"].Value)
};
preparsedContent.Tags.Add(tag);
}
preparsedContent.Tags.Sort((a, b) =>
{
if (a.StartIndex > b.StartIndex)
{
return(1);
}
else if (a.StartIndex < b.StartIndex)
{
return(-1);
}
else
{
return(0);
}
});
}
HttpRuntime.Cache.Insert(cacheKey
, preparsedContent
, new CacheDependencyEx(preparsedContent.DependedFiles.ToArray(), false)
, Cache.NoAbsoluteExpiration
, Cache.NoSlidingExpiration
, CacheItemPriority.NotRemovable
, null
);
return(preparsedContent);
}
