public void Handle(CastVoteForPost command)
{
var user = _membershipService.GetUserById(command.UserId);
if (user == null)
{
return;
}
var post = _postService.GetPostById(command.PostId);
if (post == null)
{
return;
}
if (post.Deleted)
{
// if the post is deleted, any user other than the author can't cast a vote.
if (user.Id != post.UserId)
{
return;
}
// also, that vote that the author may cast can only be a unvote (remove vote).
if (command.VoteType != null)
{
return;
}
}
if (!user.IsAdmin)
{
if (_subUserBanService.IsUserBannedFromSub(post.SubId, user.Id))
{
return;
}
}
var currentVote = _voteService.GetVoteForUserOnPost(user.Id, post.Id);
if (currentVote == command.VoteType)
{
return; // already voted with that type!
}
if (command.VoteType.HasValue)
{
_voteService.VoteForPost(post.Id, user.Id, command.IpAddress, command.VoteType.Value, command.DateCasted);
}
else
{
_voteService.UnVotePost(post.Id, user.Id);
}
_eventBus.Publish(new VoteForPostCasted {
PostId = post.Id, UserId = user.Id, PreviousVote = currentVote, VoteType = command.VoteType
});
}
public void Handle(ReportComment command)
{
if (string.IsNullOrEmpty(command.Reason))
{
return;
}
if (command.Reason.Length > 200)
{
command.Reason = command.Reason.Substring(0, 200);
}
var user = _membershipService.GetUserById(command.ReportBy);
if (user == null)
{
return;
}
var comment = _commentService.GetCommentById(command.CommentId);
if (comment == null)
{
return;
}
// did a mod/admin configure this comment to ignore any reports?
if (comment.IgnoreReports)
{
return;
}
// the user can't report things in a sub they are banned from
if (_subUserBanService.IsUserBannedFromSub(comment.Id, user.Id))
{
return;
}
// make sure the user hasn't already report the comment
var currentReports = _reportService.GetReportsForComment(comment.Id);
if (currentReports.Any(x => x.ReportedBy == user.Id))
{
return;
}
_reportService.ReportComment(comment.Id, user.Id, command.Reason);
_commentService.UpdateNumberOfReportsForComment(comment.Id, currentReports.Count + 1);
}
public CreatePostResponse Handle(CreatePost command)
{
var response = new CreatePostResponse();
try
{
var user = _membershipService.GetUserById(command.CreatedByUserId);
if (user == null)
{
response.Error = "Invalid user.";
return(response);
}
if (string.IsNullOrEmpty(command.SubName))
{
response.Error = "The sub name is required.";
return(response);
}
var sub = _subService.GetSubByName(command.SubName);
if (sub == null)
{
response.Error = "That sub doesn't exist.";
return(response);
}
if (!user.IsAdmin)
{
// make sure the user isn't banned from this sub
if (_subUserBanService.IsUserBannedFromSub(sub.Id, user.Id))
{
response.Error = "You are currently banned from this sub.";
return(response);
}
}
// TODO: does user look like spam?
// todo: make sure the post type is allowed
if (string.IsNullOrEmpty(command.Title))
{
response.Error = "The title is required.";
return(response);
}
// remove extrenous white space, and trim whitespace from the edges
command.Title = Regex.Replace(command.Title, @"\s+", " ").Trim();
if (command.Title.Length > 300)
{
response.Error = "The title is too long.";
return(response);
}
string domain = null;
if (command.PostType == PostType.Link)
{
if (string.IsNullOrEmpty(command.Url))
{
response.Error = "You must provide a url.";
return(response);
}
// check https://github.com/skimur/skimur/issues/83
command.Url = command.Url.RemoveBOM();
// todo: improve url validation
string scheme;
string formattedUrl;
if (!UrlParser.TryParseUrl(command.Url, out formattedUrl, out domain, out scheme))
{
response.Error = "The url appears to be invalid.";
return(response);
}
command.Url = formattedUrl;
switch (scheme)
{
case "http":
case "https":
break;
default:
response.Error = "The scheme is invalid for the url.";
return(response);
}
// todo: make sure the domain isn't banned
// todo: make sure the url wasn't already submitted
}
else if (command.PostType == PostType.Text)
{
if (!user.IsAdmin)
{
if (!string.IsNullOrEmpty(command.Content) && command.Content.Length > 40000)
{
response.Error = "The post content is too long (maximum 40000 characters).";
return(response);
}
}
}
else
{
throw new Exception("unknown post type " + command.PostType);
}
bool isNsfw;
if (sub.Nsfw)
{
// NSFW by default
isNsfw = true;
}
else
{
// Let's see if the user marked this as NSFW.
isNsfw = Common.IsNsfw(command.Title);
}
var post = new Post
{
Id = GuidUtil.NewSequentialId(),
DateCreated = command.OverrideDateCreated.HasValue ? command.OverrideDateCreated.Value : Common.CurrentTime(),
LastEditDate = null,
SubId = sub.Id,
UserId = user.Id,
UserIp = command.IpAddress,
PostType = command.PostType,
Title = command.Title,
SendReplies = command.NotifyReplies,
Mirrored = command.Mirror,
Nsfw = isNsfw,
InAll = sub.InAll
};
List <string> mentions = null;
if (post.PostType == PostType.Link)
{
post.Url = command.Url;
post.Domain = domain;
}
else
{
post.Content = command.Content;
post.ContentFormatted = _markdownCompiler.Compile(post.Content, out mentions);
}
_postService.InsertPost(post);
_commandBus.Send(new CastVoteForPost {
DateCasted = post.DateCreated, IpAddress = command.IpAddress, PostId = post.Id, UserId = user.Id, VoteType = VoteType.Up
});
if (mentions != null && mentions.Count > 0)
{
_eventBus.Publish(new UsersMentioned {
PostId = post.Id, Users = mentions
});
}
_commandBus.Send(new GenerateThumbnailForPost {
PostId = post.Id
});
if (_embeddedProvider.IsEnabled)
{
_commandBus.Send(new GenerateEmbeddedMediaObject {
PostId = post.Id
});
}
response.Title = command.Title;
response.PostId = post.Id;
}
catch (Exception ex)
{
// todo: log
response.Error = ex.Message;
}
return(response);
}
