/// <summary>
/// Checks the comment and returns true if it is spam, otherwise false.
/// </summary>
/// <param name="currentStartPage"></param>
/// <param name="comment"></param>
/// <returns></returns>
public bool CheckCommentForSpam(ContentItem currentStartPage, IAntiSpamComment comment)
{
string result = SubmitComment(currentStartPage, comment, _checkUrl);
if (string.IsNullOrEmpty(result))
throw new InvalidResponseException("Akismet returned an empty response");
if (result != "true" && result != "false")
throw new InvalidResponseException(string.Format(CultureInfo.InvariantCulture,
"Received the response '{0}' from Akismet. Probably a bad API key.",
result));
return bool.Parse(result);
}
/// <summary>
/// Submits a comment to Akismet that should have been
/// flagged as SPAM, but was not flagged by Akismet.
/// </summary>
/// <param name="currentStartPage"></param>
/// <param name="comment"></param>
/// <returns></returns>
public virtual void SubmitSpam(ContentItem currentStartPage, IAntiSpamComment comment)
{
SubmitComment(currentStartPage, comment, _submitSpamUrl);
}
string SubmitComment(ContentItem currentStartPage, IAntiSpamComment comment, Url url)
{
// Not too many concatenations. Might not need a string builder.
string parameters = "blog=" + HttpUtility.UrlEncode(_webContext.GetFullyQualifiedUrl(currentStartPage.Url))
+ "&user_ip=" + comment.IPAddress
+ "&user_agent=" + HttpUtility.UrlEncode(comment.UserAgent);
if (!string.IsNullOrEmpty(comment.Referrer))
parameters += "&referer=" + HttpUtility.UrlEncode(comment.Referrer);
if (comment.Permalink != null)
parameters += "&permalink=" + HttpUtility.UrlEncode(comment.Permalink.ToString());
if (!string.IsNullOrEmpty(comment.CommentType))
parameters += "&comment_type=" + HttpUtility.UrlEncode(comment.CommentType);
if (!string.IsNullOrEmpty(comment.Author))
parameters += "&comment_author=" + HttpUtility.UrlEncode(comment.Author);
if (!string.IsNullOrEmpty(comment.AuthorEmail))
parameters += "&comment_author_email=" + HttpUtility.UrlEncode(comment.AuthorEmail);
if (comment.AuthorUrl != null)
parameters += "&comment_author_url=" + HttpUtility.UrlEncode(comment.AuthorUrl.ToString());
if (!string.IsNullOrEmpty(comment.Content))
parameters += "&comment_content=" + HttpUtility.UrlEncode(comment.Content);
if (comment.ServerEnvironmentVariables != null)
foreach (string key in comment.ServerEnvironmentVariables)
parameters += "&" + key + "=" + HttpUtility.UrlEncode(comment.ServerEnvironmentVariables[key]);
return _httpClient.PostRequest(url, _userAgent, _configuration.Timeout, parameters).ToLowerInvariant();
}