public static void NotifyMessageRemoved(ForumMessageEntry forumMessage)
{
if (CachedMessagesDictionary.ContainsKey(forumMessage.TopicId))
{
foreach (var page in CachedMessagesDictionary[forumMessage.TopicId])
{
var index = page.Value.Messages.FindIndex(entry => entry.Id == forumMessage.Id);
if (index != -1)
{
page.Value.Messages.RemoveAt(index);
break;
}
}
}
}
public ForumTopicMessageEntryViewModel(ForumMessageEntry data)
{
Data = data;
_isStarred = ResourceLocator.HandyDataStorage.IsMessageStarred(data.Id, data.Poster.MalUser);
}
/// <summary>
/// Returns tons of data about topic.
/// </summary>
/// <param name="topicId">Self explanatory</param>
/// <param name="page">Page starting from 1</param>
/// <param name="lastpage">Override page to last page?</param>
/// <param name="messageId"></param>
/// <param name="force">Forces cache ignore</param>
/// <returns></returns>
public static async Task<ForumTopicData> GetTopicData(string topicId,int page,bool lastpage = false,long? messageId = null,bool force = false)
{
if(!force && !lastpage && messageId == null && topicId != null && CachedMessagesDictionary.ContainsKey(topicId))
if (CachedMessagesDictionary[topicId].ContainsKey(page))
return CachedMessagesDictionary[topicId][page];
try
{
var client = await ResourceLocator.MalHttpContextProvider.GetHttpContextAsync();
var response =
await client.GetAsync(
lastpage
? $"/forum/?topicid={topicId}&goto=lastpost"
: messageId != null
? $"/forum/message/{messageId}?goto=topic"
: $"/forum/?topicid={topicId}&show={(page - 1) * 50}");
if ((lastpage || messageId != null) && response.StatusCode == HttpStatusCode.RedirectMethod)
{
response =
await client.GetAsync(response.Headers.Location);
}
var doc = new HtmlDocument();
doc.Load(await response.Content.ReadAsStreamAsync());
var foundMembers = new Dictionary<string,MalForumUser>();
var output = new ForumTopicData {Id = topicId};
if (messageId != null && messageId != -1)
output.TargetMessageId = messageId.ToString();
try
{
var pager = doc.FirstOfDescendantsWithClass("div", "fl-r pb4");
var lastLinkNode = pager.Descendants("a").LastOrDefault(node => node.InnerText.Contains("Last"));
if (lastLinkNode != null)
{
output.AllPages = (int.Parse(lastLinkNode
.Attributes["href"]
.Value.Split('=').Last()) / 50) + 1;
}
else
{
var nodes = pager.ChildNodes.Where(node => !string.IsNullOrWhiteSpace(node.InnerText) && node.InnerText != "»");
output.AllPages = int.Parse(nodes.Last().InnerText.Replace("[","").Replace("]","").Trim());
}
}
catch (Exception)
{
output.AllPages = 1;
}
if(!lastpage)
try
{
var pageNodes = doc.FirstOfDescendantsWithClass("div", "fl-r pb4").ChildNodes.Where(node => node.Name != "a");
output.CurrentPage =
int.Parse(
pageNodes.First(node => Regex.IsMatch(node.InnerText.Trim(), @"\[.*\]"))
.InnerText.Replace("[", "").Replace("]", "").Trim());
}
catch (Exception e)
{
output.CurrentPage = output.AllPages;
}
else
{
output.CurrentPage = output.AllPages;
}
output.Title = WebUtility.HtmlDecode(doc.FirstOrDefaultOfDescendantsWithClass("h1", "forum_locheader")?.InnerText.Trim());
if (output.Title == null)
{
output.Title = WebUtility.HtmlDecode(doc.FirstOrDefaultOfDescendantsWithClass("h1", "forum_locheader icon-forum-locked")?.InnerText.Trim());
if (output.Title != null)
{
output.IsLocked = true;
}
}
foreach (var bradcrumb in doc.FirstOfDescendantsWithClass("div", "breadcrumb").ChildNodes.Where(node => node.Name == "div"))
{
output.Breadcrumbs.Add(new ForumBreadcrumb
{
Name = WebUtility.HtmlDecode(bradcrumb.InnerText.Trim()),
Link = bradcrumb.Descendants("a").First().Attributes["href"].Value
});
}
if (topicId == null) //in case of redirection
{
var uri = response.RequestMessage.RequestUri.AbsoluteUri;
output.TargetMessageId = uri.Split('#').Last().Replace("msg", "");
var pos = uri.IndexOf('&');
if (pos != -1)
{
uri = uri.Substring(0, pos);
topicId = uri.Split('=').Last();
}
output.Id = topicId;
}
foreach (var row in doc.WhereOfDescendantsWithClass("div", "forum_border_around"))
{
var current = new ForumMessageEntry {TopicId = topicId};
current.Id = row.Attributes["id"].Value.Replace("forumMsg", "");
var divs = row.ChildNodes.Where(node => node.Name == "div").ToList();
var headerDivs = divs[0].Descendants("div").ToList();
current.CreateDate = WebUtility.HtmlDecode(headerDivs[2].InnerText.Trim());
current.MessageNumber = WebUtility.HtmlDecode(headerDivs[1].InnerText.Trim());
var tds = row.Descendants("tr").First().ChildNodes.Where(node => node.Name == "td").ToList();
var posterName = WebUtility.HtmlDecode(tds[0].Descendants("strong").First().InnerText.Trim());
if (foundMembers.ContainsKey(posterName))
{
current.Poster = foundMembers[posterName];
}
else
{
var poster = new MalForumUser();
poster.MalUser.Name = posterName;
poster.Title = WebUtility.HtmlDecode(tds[0].FirstOrDefaultOfDescendantsWithClass("div", "custom-forum-title")?.InnerText.Trim());
poster.MalUser.ImgUrl =
tds[0].Descendants("img")
.FirstOrDefault(
node =>
node.Attributes.Contains("src") &&
node.Attributes["src"].Value.Contains("useravatars"))?.Attributes["src"].Value;
if (tds[0].ChildNodes[1].ChildNodes.Count == 10)
{
poster.Status = tds[0].ChildNodes[1].ChildNodes[5].InnerText.Trim();
poster.Joined = tds[0].ChildNodes[1].ChildNodes[7].InnerText.Trim();
poster.Posts = tds[0].ChildNodes[1].ChildNodes[9].InnerText.Trim();
}
else if (tds[0].ChildNodes[1].ChildNodes.Count == 11)
{
poster.Status = tds[0].ChildNodes[1].ChildNodes[6].InnerText.Trim();
poster.Joined = tds[0].ChildNodes[1].ChildNodes[8].InnerText.Trim();
poster.Posts = tds[0].ChildNodes[1].ChildNodes[10].InnerText.Trim();
}
else
{
poster.Status = tds[0].ChildNodes[1].ChildNodes[2].InnerText.Trim();
poster.Joined = tds[0].ChildNodes[1].ChildNodes[4].InnerText.Trim();
poster.Posts = tds[0].ChildNodes[1].ChildNodes[6].InnerText.Trim();
}
try
{
poster.SignatureHtml = tds[1].FirstOfDescendantsWithClass("div", "sig").OuterHtml;
}
catch (Exception)
{
//no signature
}
foundMembers.Add(posterName,poster);
current.Poster = poster;
}
current.EditDate = WebUtility.HtmlDecode(tds[1].Descendants("em").FirstOrDefault()?.InnerText.Trim());
current.HtmlContent =
tds[1].Descendants("div")
.First(
node =>
node.Attributes.Contains("id") && node.Attributes["id"].Value == $"message{current.Id}")
.OuterHtml;
var actions = row.FirstOfDescendantsWithClass("div", "postActions");
current.CanEdit = actions.ChildNodes[0].ChildNodes.Any(node => node.InnerText?.Contains("Edit") ?? false);
current.CanDelete = actions.ChildNodes[0].ChildNodes.Any(node => node.InnerText?.Contains("Delete") ?? false);
output.Messages.Add(current);
}
if (!CachedMessagesDictionary.ContainsKey(topicId))
CachedMessagesDictionary.Add(topicId, new Dictionary<int, ForumTopicData>
{
{output.CurrentPage, output}
});
else
{
if (CachedMessagesDictionary[topicId].ContainsKey(output.CurrentPage))
CachedMessagesDictionary[topicId][output.CurrentPage] = output;
else
CachedMessagesDictionary[topicId].Add(output.CurrentPage, output);
}
return output;
}
catch (Exception)
{
return new ForumTopicData();
}
}
