/// <summary>
/// Explicitly test to see if a user is shadow-banned,
/// which means the user is a known spammer.
/// </summary>
/// <remarks>
/// <para>
/// This is done by HTTP GET on /user/Foo . If that link returns a
/// 404, then the user is shadow-banned.
/// </para>
/// </remarks>
public bool IsUserDead(string username)
{
if (!checkedUserCache.ContainsKey(username))
{
Data.Listing list = mGetUserRecentPosts(username);
checkedUserCache[username] = (list != null && list.error != null);
}
return(checkedUserCache[username]);
}
/// <summary>
/// Report a user as a spammer, maybe.
/// </summary>
/// <remarks>
/// <para>
/// This method submits a user to /r/reportthespammers, maybe.
/// </para>
/// <para>
/// The method first queries the user. If the user is
/// already shadow-banned, this method does nothing further,
/// and returns.
/// </para>
/// <para>
/// If the user has an age of over 15 days, and has posted more than 3 items,
// and has a link karma below 20, then the account gets
// reported as a spammer.
/// </para>
/// </remarks>
public void MaybeReportUserAsSpammer(string username)
{
if (GetDeadUsers().Contains(username))
{
return;
}
Data.Listing list = mGetUserRecentPosts(username);
if (list == null || list.error != null)
{
return;
}
Data.Account acct = mGetAccount(username);
if (acct == null || acct.data == null)
{
return;
}
// report as spammer if....
// .... account is older than 15 days
// .... has link karma less than 20
// .... has posted more than 3 items
// .... has not been reported already
var age = DateTime.Now - acct.data.createdTime;
if (age > fifteenDays &&
//!acct.data.is_mod &&
acct.data.link_karma < 20 &&
list.data.children.Count(x => x.kind.Equals("t3")) > 3 &&
!reportedUsers.Contains(username) &&
(!checkedUserCache.ContainsKey(username) ||
!checkedUserCache[username]))
{
ReportUserAsSpammer(username);
reportedUsers.Add(username);
if (ExternalDeadList != null)
{
if (!ExternalDeadList.Contains(username))
{
ExternalDeadList.Add(username);
}
}
checkedUserCache[username] = true; // dead
}
}