public static bool IsCombinedUriWithin(Uri first, Uri second)
{
if (first == (Uri)null || second == (Uri)null)
{
return(false);
}
if (!second.IsAbsoluteUri)
{
Uri combinedUri = (Uri)null;
if (!UriHelperUtility.TryCombineUris(first, second, out combinedUri))
{
return(false);
}
second = combinedUri;
}
return(UriHelperUtility.IsUriWithin(second, first));
}
public static bool TryCombineUris(Uri rootUri, Uri relativeUri, out Uri combinedUri)
{
combinedUri = (Uri)null;
if (rootUri == (Uri)null && relativeUri == (Uri)null)
{
return(false);
}
if (relativeUri == (Uri)null)
{
combinedUri = rootUri;
return(true);
}
if (relativeUri.IsAbsoluteUri || UriHelperUtility.IsSdkUri(relativeUri))
{
return(false);
}
if (rootUri == (Uri)null)
{
combinedUri = relativeUri;
return(true);
}
if (UriHelperUtility.IsSdkUri(rootUri))
{
return(UriHelperUtility.TryCombineSdkUris(rootUri, relativeUri, out combinedUri));
}
rootUri = UriHelperUtility.EnsureUriEndsWithDirectorySeperator(rootUri);
string originalString = relativeUri.OriginalString;
if (Path.IsPathRooted(originalString))
{
string pathRoot = Path.GetPathRoot(originalString);
relativeUri = new Uri(originalString.Substring(pathRoot.Length), UriKind.Relative);
}
if (rootUri.IsAbsoluteUri)
{
return(Uri.TryCreate(rootUri, relativeUri, out combinedUri));
}
string fromPath = "C:\\";
int length = rootUri.OriginalString.Split(new string[1]
{
".."
}, StringSplitOptions.None).Length;
while (length-- > 0)
{
fromPath = fromPath + (object)"dummy" + (string)(object)Path.DirectorySeparatorChar;
}
rootUri = new Uri(fromPath + rootUri.ToString(), UriKind.Absolute);
if (!UriHelperUtility.TryCombineUris(rootUri, relativeUri, out combinedUri))
{
combinedUri = (Uri)null;
return(false);
}
string relativePath = PathHelper.GetRelativePath(fromPath, combinedUri.LocalPath);
if (string.IsNullOrEmpty(relativePath))
{
combinedUri = (Uri)null;
return(false);
}
combinedUri = new Uri(relativePath, UriKind.Relative);
return(true);
}