/// <summary>
/// 向缓存中写入指定主题信息
/// </summary>
/// <param name="topic">指定主题信息</param>
public static void SetForumTopicCache(ForumTopicEntity topic)
{
if (topic != null)
{
CacheManager.Set(GetForumTopicCacheKey(topic.TopicID), topic);
}
}
public ActionResult Reply(Int32 id, FormCollection form)
{
ForumPostEntity post = ForumPostManager.GetForumPost(id);
ForumTopicEntity topic = ForumTopicManager.GetForumTopic(post.TopicID);
if (topic.Type == ForumTopicType.Contest)
{
return(RedirectToErrorMessagePage("This topic is not in the main disscus board!"));
}
ForumPostEntity reply = new ForumPostEntity()
{
Title = form["title"],
Content = form["content"]
};
String userip = this.GetCurrentUserIP();
String link = Url.Action("Reply", "Forum", new { id = post.PostID });
if (!ForumPostManager.InsertForumPost(reply, topic, post, userip, link))
{
return(RedirectToErrorMessagePage("Failed to post your reply!"));
}
return(RedirectToAction("Reply", "Forum", new { id = post.PostID }));
}
public ActionResult Reply(String id, FormCollection form)
{
ContestEntity contest = ViewData["Contest"] as ContestEntity;
ForumPostEntity post = ForumPostManager.GetForumPostByTopicID(id);
ForumTopicEntity topic = ForumTopicManager.GetForumTopic(post.TopicID);
if (topic.Type != ForumTopicType.Contest || topic.RelativeID != contest.ContestID)
{
return(RedirectToErrorMessagePage("This contest does not have this topic!"));
}
ForumPostEntity reply = new ForumPostEntity()
{
Title = form["title"],
Content = form["content"]
};
String userip = this.GetCurrentUserIP();
String link = Url.Action("Topic", "Forum", new { area = "Contest", cid = contest.ContestID, id = post.TopicID });
if (!ForumPostManager.InsertForumPost(reply, topic, post, userip, link))
{
return(RedirectToErrorMessagePage("Failed to post your reply!"));
}
return(RedirectToAction("Topic", "Forum", new { area = "Contest", cid = contest.ContestID, id = post.TopicID }));
}
/// <summary>
/// 根据ID得到一个对象实体
/// </summary>
/// <param name="id">实体ID</param>
/// <returns>对象实体</returns>
public static ForumTopicEntity GetForumTopic(Int32 id)
{
if (id <= 0)
{
throw new InvalidRequstException(RequestType.ForumTopic);
}
ForumTopicEntity topic = ForumTopicCache.GetForumTopicCache(id);
if (topic == null)
{
topic = ForumTopicRepository.Instance.GetEntity(id);
ForumTopicCache.SetForumTopicCache(topic);
}
if (topic == null)
{
throw new NullResponseException(RequestType.ForumTopic);
}
if (topic.IsHide && !AdminManager.HasPermission(PermissionType.ForumManage))
{
throw new NoPermissionException("You have no privilege to view the topic!");
}
return(topic);
}
/// <summary>
/// 获取帖子列表
/// </summary>
/// <param name="topic">主题实体</param>
/// <param name="includeHide">是否包含隐藏主题</param>
/// <returns>帖子列表</returns>
public static List <ForumPostEntity> GetForumPostList(ForumTopicEntity topic, Boolean includeHide)
{
List <ForumTopicEntity> topics = new List <ForumTopicEntity>()
{
topic
};
return(GetForumPostList(topics, includeHide));
}
/// <summary>
/// 讨论版主题页面
/// </summary>
/// <param name="id">主题ID</param>
/// <returns>操作后的结果</returns>
public ActionResult Topic(Int32 id = -1)
{
ContestEntity contest = ViewData["Contest"] as ContestEntity;
ForumPostEntity post = ForumPostManager.GetForumPostByTopicID(id.ToString());
ForumTopicEntity topic = ForumTopicManager.GetForumTopic(post.TopicID);
if (topic.Type != ForumTopicType.Contest || topic.RelativeID != contest.ContestID)
{
return(RedirectToErrorMessagePage("This contest does not have this topic!"));
}
List <ForumPostEntity> list = ForumPostManager.GetForumPostList(topic, false);
return(View(new Tuple <ForumTopicEntity, List <ForumPostEntity> >(topic, list)));
}
public ActionResult New(FormCollection form)
{
ContestEntity contest = ViewData["Contest"] as ContestEntity;
ForumTopicEntity topic = new ForumTopicEntity()
{
Title = form["title"],
};
String userip = this.GetCurrentUserIP();
if (!ForumTopicManager.InsertForumTopic(topic, contest.ContestID.ToString(), String.Empty, form["content"], userip))
{
return(RedirectToErrorMessagePage("Failed to post your topic!"));
}
return(RedirectToAction("List", "Forum", new { area = "Contest", cid = contest.ContestID }));
}
/// <summary>
/// 讨论版回复页面
/// </summary>
/// <param name="id">帖子ID</param>
/// <param name="tid">主题ID</param>
/// <returns>操作后的结果</returns>
public ActionResult Reply(Int32 id = -1, String tid = "")
{
ForumPostEntity post = (String.IsNullOrEmpty(tid) ? ForumPostManager.GetForumPost(id) : ForumPostManager.GetForumPostByTopicID(tid));
ForumTopicEntity topic = ForumTopicManager.GetForumTopic(post.TopicID);
if (topic.Type == ForumTopicType.Contest)
{
return(RedirectToErrorMessagePage("This topic is not in the main disscus board!"));
}
post.RelativeType = (topic.Type == ForumTopicType.Problem ? topic.Type : ForumTopicType.Default);
post.RelativeID = (topic.Type == ForumTopicType.Problem ? topic.RelativeID : -1);
List <TreeNode <ForumPostEntity> > listTreeNode = ForumPostManager.GetPostTreeList(topic, post.PostID);
ViewBag.IsLocked = topic.IsLocked;
return(View(new Tuple <ForumPostEntity, List <TreeNode <ForumPostEntity> > >(post, listTreeNode)));
}
/// <summary>
/// 创建树形列表
/// </summary>
/// <param name="topic">主题帖</param>
/// <param name="postID">帖子ID</param>
/// <returns>树形列表</returns>
public static List <TreeNode <ForumPostEntity> > GetPostTreeList(ForumTopicEntity topic, Int32 postID)
{
List <ForumPostEntity> listPost = ForumPostManager.GetForumPostList(topic, false);
if (listPost == null || listPost.Count == 0)
{
return(new List <TreeNode <ForumPostEntity> >());
}
//将主题帖放入树节点数组
List <TreeNode <ForumPostEntity> > listTreeNode = new List <TreeNode <ForumPostEntity> >();
//将父节点是帖子ID的节点放入树节点数组
for (Int32 i = 0; i < listPost.Count; i++)
{
if (listPost[i].ParentPostID == postID)
{
TreeNode <ForumPostEntity> node = new TreeNode <ForumPostEntity>(listPost[i].PostID.ToString(), listPost[i]);
listTreeNode.Add(node);
listPost.RemoveAt(i--);
}
}
//根据树节点数组创建树
if (listTreeNode.Count > 0)
{
for (Int32 i = 0; i < listTreeNode.Count; i++)
{
ForumPostManager.CreateTree(listTreeNode[i], listPost);
}
return(listTreeNode);
}
else
{
return(new List <TreeNode <ForumPostEntity> >());
}
}
public ActionResult New(FormCollection form)
{
ForumTopicEntity topic = new ForumTopicEntity()
{
Title = form["title"]
};
String pid = form["pid"];
String userip = this.GetCurrentUserIP();
if (!ForumTopicManager.InsertForumTopic(topic, String.Empty, pid, form["content"], userip))
{
return(RedirectToErrorMessagePage("Failed to post your topic!"));
}
if (String.IsNullOrEmpty(pid))
{
return(RedirectToAction("Main", "Forum"));
}
else
{
return(RedirectToAction("Problem", "Forum", new { pid = pid }));
}
}
/// <summary>
/// 增加一条回帖
/// </summary>
/// <param name="post">帖子实体</param>
/// <param name="topic">主题实体</param>
/// <param name="parentPost">回复的帖子实体</param>
/// <param name="postip">发布者IP</param>
/// <param name="link">当前页面地址</param>
/// <returns>是否成功增加</returns>
public static Boolean InsertForumPost(ForumPostEntity post, ForumTopicEntity topic, ForumPostEntity parentPost, String postip, String link)
{
if (!UserManager.IsUserLogined)
{
throw new UserUnLoginException();
}
if (String.IsNullOrEmpty(post.Title))
{
throw new InvalidInputException("Reply title can not be NULL!");
}
if (post.Title.Length > ForumPostRepository.TITLE_MAXLEN)
{
throw new InvalidInputException("Reply title is too long!");
}
if (!KeywordsFilterManager.IsForumPostContentLegal(post.Title))
{
throw new InvalidInputException("Reply title can not contain illegal keywords!");
}
if (String.IsNullOrEmpty(post.Content) || post.Content.Length < ForumPostRepository.POST_MINLEN)
{
throw new InvalidInputException("Reply content is too short!");
}
if (post.Content.Length > ForumPostRepository.POST_MAXLEN)
{
throw new InvalidInputException("Reply content is too long!");
}
if (!KeywordsFilterManager.IsForumPostContentLegal(post.Content))
{
throw new InvalidInputException("Reply content can not contain illegal keywords!");
}
if (parentPost.Deepth + 1 < ForumPostRepository.DEEPTH_MIN)
{
throw new InvalidInputException("Reply deepth is INVALID!");
}
if (parentPost.Deepth + 1 > ForumPostRepository.DEEPTH_MAX)
{
throw new InvalidInputException("Reply deepth is too deep!");
}
if (topic.IsLocked)
{
throw new NoPermissionException("You have no privilege to reply the post!");
}
if (!UserSubmitStatus.CheckLastSubmitForumPostTime(UserManager.CurrentUserName))
{
throw new InvalidInputException(String.Format("You can not submit post more than twice in {0} seconds!", ConfigurationManager.SubmitInterval.ToString()));
}
post.TopicID = parentPost.TopicID;
post.Title = HtmlEncoder.HtmlEncode(post.Title);
post.Content = HtmlEncoder.HtmlEncode(post.Content);
post.UserName = UserManager.CurrentUserName;
post.Deepth = parentPost.Deepth + 1;
post.ParentPostID = parentPost.PostID;
post.PostDate = DateTime.Now;
post.PostIP = postip;
Boolean success = ForumPostRepository.Instance.InsertEntity(post) > 0;
if (success && !String.Equals(parentPost.UserName, post.UserName))
{
if (ConfigurationManager.ReplyPostMailNotification)
{
try
{
UserMailEntity mail = new UserMailEntity();
String url = ConfigurationManager.DomainUrl + ((link[0] == '/') ? link.Substring(1) : link);
mail.FromUserName = ConfigurationManager.SystemAccount;
mail.ToUserName = parentPost.UserName;
mail.Title = "Your post has new reply!";
mail.Content =
String.Format("Your post \"{0}\" has new reply, <br/>", parentPost.Title) +
String.Format("Please visit <a href=\"{0}\" target=\"_blank\">{0}</a>", url);
UserMailManager.InternalSendUserMail(mail);
}
catch { }
}
}
return(success);
}
/// <summary>
/// 发布新主题
/// </summary>
/// <param name="topic">主题实体</param>
/// <param name="cid">竞赛ID</param>
/// <param name="pid">题目ID</param>
/// <param name="content">主题帖内容</param>
/// <param name="postip">发布者IP</param>
/// <returns>是否成功发布</returns>
public static Boolean InsertForumTopic(ForumTopicEntity topic, String cid, String pid, String content, String postip)
{
if (!UserManager.IsUserLogined)
{
throw new UserUnLoginException();
}
if (String.IsNullOrEmpty(topic.Title))
{
throw new InvalidInputException("Topic title can not be NULL!");
}
if (topic.Title.Length > ForumPostRepository.TITLE_MAXLEN)
{
throw new InvalidInputException("Topic title is too long!");
}
if (!KeywordsFilterManager.IsForumPostContentLegal(topic.Title))
{
throw new InvalidInputException("Topic title can not contain illegal keywords!");
}
if (String.IsNullOrEmpty(content) || content.Length < ForumPostRepository.POST_MINLEN)
{
throw new InvalidInputException("Topic content is too short!");
}
if (content.Length > ForumPostRepository.POST_MAXLEN)
{
throw new InvalidInputException("Topic content is too long!");
}
if (!KeywordsFilterManager.IsForumPostContentLegal(content))
{
throw new InvalidInputException("Topic content can not contain illegal keywords!");
}
if (!UserSubmitStatus.CheckLastSubmitForumPostTime(UserManager.CurrentUserName))
{
throw new InvalidInputException(String.Format("You can not submit post more than twice in {0} seconds!", ConfigurationManager.SubmitInterval.ToString()));
}
topic.Type = ForumTopicManager.GetForumTopicType(cid, pid);
topic.RelativeID = (topic.Type == ForumTopicType.Default ? 0 : ForumTopicManager.GetRelativeID(cid, pid));
if (topic.Type == ForumTopicType.Problem && !ProblemManager.InternalExistsProblem(topic.RelativeID))
{
throw new InvalidRequstException(RequestType.Problem);
}
else if (topic.Type == ForumTopicType.Contest && !ContestManager.InternalExistsContest(topic.RelativeID))
{
throw new InvalidRequstException(RequestType.Contest);
}
topic.UserName = UserManager.CurrentUserName;
topic.LastDate = DateTime.Now;
topic.Title = HtmlEncoder.HtmlEncode(topic.Title);
content = HtmlEncoder.HtmlEncode(content);
Boolean success = ForumTopicRepository.Instance.InsertEntity(topic, content, postip) > 0;
if (success)
{
ForumTopicCache.IncreaseForumTopicCountCache(topic.Type, topic.RelativeID);//更新缓存
if (topic.Type == ForumTopicType.Problem)
{
ForumTopicCache.IncreaseForumTopicCountCache(ForumTopicType.Default, 0);//更新缓存
}
}
return(success);
}
