/// <summary>
/// Check whether a topic is spam or not
/// </summary>
/// <param name="topic"></param>
/// <returns></returns>
public bool IsSpam(Topic topic)
{
// If akisment is is not enable always return false
if (_settingsService.GetSettings().EnableAkisment == null || _settingsService.GetSettings().EnableAkisment == false) return false;
// Akisment must be enabled
var firstOrDefault = topic.Posts.FirstOrDefault(x => x.IsTopicStarter);
if (firstOrDefault != null)
{
var comment = new Comment
{
blog = StringUtils.CheckLinkHasHttp(_settingsService.GetSettings().ForumUrl),
comment_type = "comment",
comment_author = topic.User.UserName,
comment_author_email = topic.User.Email,
comment_content = firstOrDefault.PostContent,
permalink = String.Empty,
referrer = HttpContext.Current.Request.ServerVariables["HTTP_REFERER"],
user_agent = HttpContext.Current.Request.ServerVariables["HTTP_USER_AGENT"],
user_ip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]
};
var validator = new Validator(_settingsService.GetSettings().AkismentKey);
return validator.IsSpam(comment);
}
return true;
}
/// <summary>
/// Check if the input comment is valid or not.
/// </summary>
/// <param name="comment">The input comment to be checked.</param>
/// <returns>True if the comment is valid, false otherwise.</returns>
public Boolean IsSpam(Comment comment)
{
// prepare pars for the request
NameValueCollection pars = PreparePars(comment);
if (null != pars)
{
// extract result from the request
return ExtractResult(PostRequest(String.Format("http://{0}.rest.akismet.com/1.1/comment-check", m_key), pars));
}
// return no spam
return false;
}
/// <summary>
/// Prepare request parameters based on the input comment.
/// </summary>
/// <param name="comment">The input comment.</param>
/// <returns>The prepared parameters if any.</returns>
protected virtual NameValueCollection PreparePars(Comment comment)
{
// check the input parameters
if ((null != comment) && (!comment.IsValid))
return null;
// initialize result
var result = new NameValueCollection();
// add required information
result["blog"] = HttpUtility.UrlEncode(comment.blog);
result["user_ip"] = HttpUtility.UrlEncode(comment.user_ip);
result["user_agent"] = HttpUtility.UrlEncode(comment.user_agent);
// add optional information
result["referrer"] = String.IsNullOrEmpty(comment.referrer) ? String.Empty : HttpUtility.UrlEncode(comment.referrer);
result["permalink"] = String.IsNullOrEmpty(comment.permalink) ? String.Empty : HttpUtility.UrlEncode(comment.permalink);
result["comment_type"] = String.IsNullOrEmpty(comment.comment_type) ? String.Empty : HttpUtility.UrlEncode(comment.comment_type);
result["comment_author"] = String.IsNullOrEmpty(comment.comment_author) ? String.Empty : HttpUtility.UrlEncode(comment.comment_author);
result["comment_author_email"] = String.IsNullOrEmpty(comment.comment_author_email) ? String.Empty : HttpUtility.UrlEncode(comment.comment_author_email);
result["comment_author_url"] = String.IsNullOrEmpty(comment.comment_author_url) ? String.Empty : HttpUtility.UrlEncode(comment.comment_author_url);
result["comment_content"] = String.IsNullOrEmpty(comment.comment_content) ? String.Empty : HttpUtility.UrlEncode(comment.comment_content);
// return result
return result;
}
/// <summary>
/// This call is intended for the marking of false positives, things that were incorrectly marked as spam.
/// </summary>
/// <param name="comment">The input comment to be sent as ham.</param>
/// <returns>True if the comment was successfully sent, false otherwise.</returns>
public void SubmitHam(Comment comment)
{
// prepare pars for the request
NameValueCollection pars = PreparePars(comment);
if (null != pars)
{
PostRequest(String.Format("http://{0}.rest.akismet.com/1.1/submit-spam", m_key), pars);
}
}