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FLocal/Common/BBCodes/helpers/UrlProcessor.cs

73 lines
1.7 KiB

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
namespace FLocal.Common.BBCodes {
class UrlProcessor {
public struct UrlInfo {
public readonly bool isLocal;
private readonly string rawRelativeUrl;
public string relativeUrl {
get {
return this.rawRelativeUrl;
//return HttpUtility.UrlEncode(this.rawRelativeUrl);
}
}
public UrlInfo(bool isLocal, string relativeUrl) {
this.isLocal = isLocal;
this.rawRelativeUrl = relativeUrl;
}
}
public static HashSet<string> KnownAliases = new HashSet<string> {
"forum.local",
"forum.b.gz.ru",
"www.snto-msu.net",
"hq.sectorb.msk.ru",
"petaflop.b.gz.ru",
"194.88.210.5",
"forumlocal.ru",
"forumbgz.ru",
"forum.hn",
};
public const string DOMAIN = ".forum.hn";
public static UrlInfo Process(string url) {
if (url.StartsWith("/")) {
return new UrlInfo(true, url);
}
Uri uri;
try {
uri = new Uri(url);
} catch(UriFormatException) {
throw new Core.FLocalException("wrong url: " + url);
}
if (KnownAliases.Contains(uri.Host.ToLower()) || uri.Host.ToLower().EndsWith(DOMAIN)) {
return new UrlInfo(true, uri.PathAndQuery);
} else {
return new UrlInfo(false, uri.ToString());
}
}
public static string ProcessLink(string link, string title, bool shortenRelative) {
if(title == null) {
title = link;
}
string url;
if(shortenRelative) {
var urlInfo = UrlProcessor.Process(link);
url = urlInfo.relativeUrl;
} else {
var urlInfo = new Uri(link);
url = urlInfo.ToString();
}
return "<a href=\"" + url + "\">" + title + "</a>";
}
}
}