public ValidationResult Validate(Uri url)
{
if (url == null)
{
throw new ArgumentException("url cannot be null");
}
var webClient = new WebClient();
var xml = webClient.DownloadString(string.Format("http://achecker.ca/checkacc.php?uri={0}&id={1}&output=rest", url, _apiKey));
xml = _weirdCharsCompensator.Replace(xml, string.Empty);
var xmlReader = XmlReader.Create(new MemoryStream(Encoding.ASCII.GetBytes(xml)),
new XmlReaderSettings {DtdProcessing = DtdProcessing.Parse});
var document = XDocument.Load(xmlReader);
var result = new ValidationResult {Status = ValidationStatus.Success};
HandleStatus(document, result);
HandleErrorsAndWarnings(document, result);
return result;
}
private void HandleErrorsAndWarnings(XDocument document, ValidationResult validationResult)
{
var results = from result in document.Descendants("result")
select new
{
Type = result.Element("resultType").Value,
LineNumber = int.Parse(result.Element("lineNum").Value),
ColumnNumber = int.Parse(result.Element("columnNum").Value),
ErrorMessage = result.Element("errorMsg").Value.Substring(1 + result.Element("errorMsg").Value.LastIndexOf("=")),
SourceCode = result.Element("errorSourceCode") != null ? result.Element("errorSourceCode").Value : null,
};
validationResult.Errors = results
.Where(x => x.Type == "Error")
.Select(
x =>
new ValidationIssue
{
Title = x.ErrorMessage,
Column = x.ColumnNumber,
Row = x.LineNumber,
Source = x.SourceCode
})
.ToList();
validationResult.Warnings = results
.Where(x => x.Type == "Warning")
.Select(
x =>
new ValidationIssue
{
Title = x.ErrorMessage,
Column = x.ColumnNumber,
Row = x.LineNumber,
Source = x.SourceCode
})
.ToList();
}
private void HandleStatus(XDocument document, ValidationResult validationResult)
{
if (!document.Root.Name.LocalName.Equals("errors")) return;
var firstError = document.Descendants("error").FirstOrDefault();
if (firstError == null) return;
var errorCode = int.Parse(firstError.Attribute("code").Value);
validationResult.Status = (ValidationStatus) errorCode;
}