/// <summary>
/// Gets the character encoding for the response. This will look at the content of the response if it is not set in the http headers.
/// </summary>
/// <returns></returns>
public Encoding GetEncoding()
{
try
{
if (!ContentEncoding.IsEmpty())
{
return(Encoding.GetEncoding(ContentEncoding));
}
if (!CharacterSet.IsEmpty())
{
return(Encoding.GetEncoding(CharacterSet));
}
var bytes = Result as byte[];
if (bytes == null)
{
return(Options.ResponseEncoding);
}
var meta = Encoding.ASCII.GetString(bytes).Trim();
if (meta.StartsWith("<?xml"))
{
var startPos = meta.IndexOf("encoding=\"");
if (startPos > 0)
{
var endPos = meta.IndexOf("\"", startPos + 1);
var charset = meta.Substring(startPos + 10, endPos - startPos + 1);
charset = charset.TrimEnd(new Char[] { '>', '"', '?' });
return(Encoding.GetEncoding(charset));
}
}
else
{
var startPos = meta.IndexOf("charset=");
if (startPos != -1)
{
var endPos = meta.IndexOf("\"", startPos);
if (endPos != -1)
{
var start = startPos + 8;
var charset = meta.Substring(start, endPos - start + 1);
charset = charset.TrimEnd(new Char[] { '>', '"' });
return(Encoding.GetEncoding(charset));
}
}
}
return(Options.ResponseEncoding);
}
catch (ArgumentException ex)
{
// The character encoding is not a valid code page name or the code page is not supported by the underlying platform.
// Just return the default encoding.
Debug.WriteLine("Error getting the encoding: {0}".Fmt(ex.Message));
return(Options.ResponseEncoding);
}
}