public static bool TryParse(string value, out ValidExternalVideoUrl externalVideoUrl, out IReadOnlyCollection <string> errorMessages)
{
var errorMessageList = new List <string>();
errorMessages = errorMessageList;
if (IsEmpty(value))
{
// TryParse should never fail, so report null as an error instead of ArgumentNullException.
errorMessageList.Add("Value required");
}
else
{
Uri uri;
if (!Uri.TryCreate(value, UriKind.Absolute, out uri))
{
errorMessageList.Add("Must be valid URL");
}
else
{
value = uri.ToString();
if (value.Length < MinLength || value.Length > MaxLength)
{
errorMessageList.Add(string.Format("Length must be from {0} to {1} characters", MinLength, MaxLength));
}
if (uri.Scheme != Uri.UriSchemeHttp && uri.Scheme != Uri.UriSchemeHttps)
{
errorMessageList.Add("Must be HTTP(S)");
}
if (!AllowedDomains.Contains(uri.Host))
{
errorMessageList.Add("Must be from " + AllowedDomainsMessage);
}
}
}
if (errorMessageList.Count > 0)
{
externalVideoUrl = null;
return(false);
}
externalVideoUrl = new ValidExternalVideoUrl(value);
return(true);
}
public static bool TryParse(string value, out ValidExternalVideoUrl externalVideoUrl)
{
IReadOnlyCollection <string> errorMessages;
return(TryParse(value, out externalVideoUrl, out errorMessages));
}
