private static void TranslateRuleEngine(RewriteEntry result, Parser.RawEntry entry)
{
Parser.RawRuleEngine rawRuleEngine = (Parser.RawRuleEngine)entry;
if (string.Equals(rawRuleEngine.Value, "On", StringComparison.OrdinalIgnoreCase))
{
result.Enabled = true;
}
else if (string.Equals(rawRuleEngine.Value, "Off", StringComparison.OrdinalIgnoreCase))
{
result.Enabled = false;
}
result.Raw = rawRuleEngine;
}
public static RewriteEntry Translate(string input, bool isServerLevel, int baseNumber)
{
Parser parser = new Parser(input);
IList <Parser.RawEntry> list = parser.Parse();
RewriteEntry rewriteEntry = new RewriteEntry(null, isServerLevel);
List <CommentEntry> list2 = null;
bool flag = false;
List <ConditionEntry> list3 = null;
for (int i = 0; i < list.Count; i++)
{
Parser.RawEntry rawEntry = list[i];
if (rawEntry is Parser.RawCondition)
{
if (list3 == null)
{
list3 = new List <ConditionEntry>();
}
ConditionEntry conditionEntry = ConditionLogic.Create((Parser.RawCondition)rawEntry);
if (list2 != null)
{
conditionEntry.Comments.AddRange(list2);
list2 = null;
}
list3.Add(conditionEntry);
}
else if (rawEntry is Parser.RawRule)
{
RuleEntry ruleEntry = RuleLogic.Create(rewriteEntry, (Parser.RawRule)rawEntry, isServerLevel);
ruleEntry.Name = string.Format(CultureInfo.InvariantCulture, "Imported Rule {0}", rewriteEntry.Rules.Count + baseNumber + 1);
if (list3 != null)
{
AddConditionsToRule(list3, ruleEntry);
}
list3 = null;
if (flag || ruleEntry.IsChained)
{
ruleEntry.ErrorInfo = new ErrorInfo("This rule was not converted because it is chained to other rules.");
flag = ruleEntry.IsChained;
}
if (list2 != null)
{
ruleEntry.Comments.AddRange(list2);
list2 = null;
}
rewriteEntry.Rules.Add(ruleEntry);
}
else if (rawEntry is Parser.RawComment)
{
if (list2 == null)
{
list2 = new List <CommentEntry>();
}
list2.Add(new CommentEntry((Parser.RawComment)rawEntry));
}
else if (rawEntry is Parser.RawRuleEngine)
{
TranslateRuleEngine(rewriteEntry, rawEntry);
}
else if (rawEntry is Parser.UnsupportedDirective)
{
rewriteEntry.UnsupportedDirectives.Add(new UnsupportedDirectiveEntry((Parser.UnsupportedDirective)rawEntry));
}
}
return(rewriteEntry);
}
internal static RuleEntry Create(RewriteEntry rewrite, Parser.RawRule rawRule, bool isServerLevel)
{
RuleEntry ruleEntry = new RuleEntry(rawRule);
if (rewrite.EnabledSet && !rewrite.Enabled)
{
ruleEntry.Enabled = false;
}
ErrorInfo errorInfo = null;
if (!string.IsNullOrEmpty(rawRule.Pattern))
{
ruleEntry.MatchNegate = rawRule.Pattern.StartsWith("!", StringComparison.Ordinal);
if (!ruleEntry.MatchNegate)
{
ruleEntry.MatchUrl = RuleLogic.SanitizePattern(rawRule.Pattern, isServerLevel, ref errorInfo);
}
else
{
ruleEntry.MatchUrl = RuleLogic.SanitizePattern(rawRule.Pattern.Substring(1), isServerLevel, ref errorInfo);
}
}
ruleEntry.ActionType = ActionType.Rewrite;
ruleEntry.ActionUrl = RuleLogic.SanitizeActionUrl(rawRule.Substitution, ref errorInfo);
bool flag = false;
if (!string.IsNullOrEmpty(rawRule.Flags))
{
string text = rawRule.Flags.Substring(1, rawRule.Flags.Length - 2);
string[] array = text.Split(new char[]
{
','
});
for (int i = 0; i < array.Length; i++)
{
string text2 = array[i];
int num = text2.IndexOf('=');
if (num != -1)
{
text2 = text2.Substring(0, num).Trim();
}
if (RuleLogic.Is(text2, "F") || RuleLogic.Is(text2, "forbidden"))
{
ruleEntry.ActionType = ActionType.CustomResponse;
ruleEntry.StatusCode = 403L;
ruleEntry.SubStatusCode = 0L;
ruleEntry.StatusReason = "Forbidden";
ruleEntry.StatusDescription = "Forbidden";
}
else if (RuleLogic.Is(text2, "Gone") || RuleLogic.Is(text2, "G"))
{
ruleEntry.ActionType = ActionType.CustomResponse;
ruleEntry.StatusCode = 410L;
ruleEntry.SubStatusCode = 0L;
ruleEntry.StatusReason = "Gone";
ruleEntry.StatusDescription = "The URL is gone";
}
else if (RuleLogic.Is(text2, "L") || RuleLogic.Is(text2, "last"))
{
ruleEntry.StopProcessing = true;
}
else if (RuleLogic.Is(text2, "nocase") || RuleLogic.Is(text2, "nc") || RuleLogic.Is(text2, "I"))
{
ruleEntry.MatchIgnoreCase = true;
}
else if (RuleLogic.Is(text2, "Proxy") || RuleLogic.Is(text2, "P"))
{
flag = true;
ruleEntry.ActionType = ActionType.Rewrite;
ruleEntry.StopProcessing = true;
if (string.IsNullOrEmpty(ruleEntry.ActionUrl))
{
ruleEntry.ActionUrl = "{R:0}";
}
}
else if (RuleLogic.Is(text2, "QSA") || RuleLogic.Is(text2, "qsappend"))
{
ruleEntry.ActionAppendQueryString = true;
}
else if (RuleLogic.Is(text2, "redirect") || RuleLogic.Is(text2, "r") || RuleLogic.Is(text2, "RP"))
{
flag = true;
ruleEntry.ActionType = ActionType.Redirect;
if (num != -1)
{
string value = array[i].Substring(num + 1).Trim();
if (RuleLogic.Is(value, "permanent") || RuleLogic.Is(value, "301"))
{
ruleEntry.ActionRedirectType = RedirectType.Permanent;
}
else if (RuleLogic.Is(value, "302") || RuleLogic.Is(value, "Found"))
{
ruleEntry.ActionRedirectType = RedirectType.Found;
}
else if (RuleLogic.Is(value, "303") || RuleLogic.Is(value, "seeother"))
{
ruleEntry.ActionRedirectType = RedirectType.SeeOther;
}
else
{
ruleEntry.ActionRedirectType = RedirectType.Temporary;
}
}
if (string.IsNullOrEmpty(ruleEntry.ActionUrl))
{
ruleEntry.ActionUrl = "{R:0}";
}
}
else if (RuleLogic.Is(text2, "cookie") || RuleLogic.Is(text2, "co") || RuleLogic.Is(text2, "env") || RuleLogic.Is(text2, "e") || RuleLogic.Is(text2, "noescape") || RuleLogic.Is(text2, "ne") || RuleLogic.Is(text2, "nosubreq") || RuleLogic.Is(text2, "ns") || RuleLogic.Is(text2, "type") || RuleLogic.Is(text2, "t"))
{
errorInfo = new ErrorInfo(string.Format(CultureInfo.InvariantCulture, "The rule cannot be converted into an equivalent IIS format because of unsupported flags: {0}", text2));
}
else if (RuleLogic.Is(text2, "chain") || RuleLogic.Is(text2, "c"))
{
ruleEntry.IsChained = true;
}
else
{
if (RuleLogic.Is(text2, "skip") || RuleLogic.Is(text2, "s") || RuleLogic.Is(text2, "next") || RuleLogic.Is(text2, "n"))
{
throw new NotSupportedException("The rule set cannot be converted into an equivalent IIS format because control flow flags (C, S, N) are not supported.");
}
if (!RuleLogic.Is(text2, "passthrough") && !RuleLogic.Is(text2, "PT"))
{
errorInfo = new ErrorInfo(string.Format(CultureInfo.InvariantCulture, "The rule contains a control flag that is not recognized: {0}.", text2), true);
}
}
}
}
if (string.IsNullOrEmpty(ruleEntry.ActionUrl) && ruleEntry.ActionType == ActionType.Rewrite)
{
ruleEntry.ActionType = ActionType.None;
}
if (!ruleEntry.ActionAppendQueryString && ruleEntry.ActionUrl != null && ruleEntry.ActionUrl.IndexOf('?') != -1)
{
ruleEntry.ActionAppendQueryString = false;
}
if (!flag && !string.IsNullOrEmpty(ruleEntry.ActionUrl) && (ruleEntry.ActionUrl.StartsWith("http://", StringComparison.OrdinalIgnoreCase) || ruleEntry.ActionUrl.StartsWith("https://", StringComparison.OrdinalIgnoreCase)))
{
ruleEntry.ActionType = ActionType.Redirect;
ruleEntry.ActionRedirectType = RedirectType.Found;
}
if (errorInfo != null)
{
ruleEntry.ErrorInfo = errorInfo;
}
return(ruleEntry);
}
