/// <summary>
/// 用于“刷新到尾页”等功能
/// 直接打开指定主题的最后一页加载数据并返回最后一个回复的Index等数据，以便直接跳到此回复
/// </summary>
/// <param name="threadId"></param>
/// <param name="cts"></param>
/// <returns></returns>
public async Task <int[]> LoadReplyDataForRedirectToLastPostAsync(int threadId, CancellationTokenSource cts)
{
// 读取数据
string url = string.Format("http://www.hi-pda.com/forum/viewthread.php?tid={0}&page=9999999&_={1}", threadId, DateTime.Now.Ticks.ToString("x"));
string htmlStr = await _httpClient.GetAsync(url, cts);
// 实例化 HtmlAgilityPack.HtmlDocument 对象
HtmlDocument doc = new HtmlDocument();
// 载入HTML
doc.LoadHtml(htmlStr);
// 先清空本贴的回复数据，以便重新加载
_replyData.RemoveAll(r => r.ThreadId == threadId);
var threadReply = new ReplyPageModel {
ThreadId = threadId, Replies = new List <ReplyItemModel>()
};
_replyData.Add(threadReply);
// 获取当前页码，及最大页码
int pageNo = 1;
var forumControlNode = doc.DocumentNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("class", "").Equals("forumcontrol s_clear"));
var pagesNode = forumControlNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("class", "").Equals("pages"));
if (pagesNode != null)
{
var nodeList = pagesNode.Descendants().Where(n => n.Name.Equals("a") || n.Name.Equals("strong")).ToList();
nodeList.RemoveAll(n => n.InnerText.Equals("下一页"));
string lastPageNodeValue = nodeList.Last().InnerText.Replace("... ", string.Empty);
_maxPageNo = Convert.ToInt32(lastPageNodeValue);
var currentPageNode = nodeList.FirstOrDefault(n => n.Name.Equals("strong"));
if (currentPageNode != null)
{
pageNo = Convert.ToInt32(currentPageNode.InnerText);
}
}
int threadAuthorUserId = 0;
string threadAuthorUsername = string.Empty;
string threadTitle = string.Empty;
#region 如果第一项没有贴子及作者数据，则加载第一页读取贴子标题及作者数据
if (pageNo > 1)
{
var item = threadReply.Replies.FirstOrDefault();
if (item == null || item.ThreadAuthorUserId == 0 || string.IsNullOrEmpty(item.ThreadTitle))
{
string val = await LoadTopReplyDataAsync(threadId, cts);
string[] ary = val.Split(',');
threadAuthorUserId = Convert.ToInt32(ary[0]);
threadAuthorUsername = ary[1];
threadTitle = ary[2];
}
else
{
threadAuthorUserId = item.ThreadAuthorUserId;
threadAuthorUsername = item.AuthorUsername;
threadTitle = item.ThreadTitle;
}
}
#endregion
// 读取所属版块之名称及ID
int forumId = 0;
string forumName = string.Empty;
var navNode = doc.DocumentNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("id", "").Equals("nav"));
if (navNode != null)
{
var forumLinkNode = navNode.ChildNodes[3];
forumId = Convert.ToInt32(forumLinkNode.Attributes[0].Value.Substring("forumdisplay.php?fid=".Length).Split('&')[0]);
forumName = forumLinkNode.InnerText.Trim();
}
var data = doc.DocumentNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("id", "").Equals("postlist")).ChildNodes;
int i = 0;
int j = 1;
foreach (var item in data)
{
var mainTable = item.Descendants().FirstOrDefault(n => n.Name.Equals("table") && n.GetAttributeValue("summary", "").StartsWith("pid"));
var tableRowNode = mainTable.ChildNodes[1]; // tr
var postAuthorNode = tableRowNode.ChildNodes[1]; // td.postauthor
if (string.IsNullOrEmpty(postAuthorNode.InnerText))
{
tableRowNode = mainTable.ChildNodes[3]; // tr
postAuthorNode = tableRowNode.ChildNodes[1]; // td.postauthor
}
var postContentNode = tableRowNode.ChildNodes[3]; // td.postcontent
int authorUserId = 0;
string authorUsername = string.Empty;
var authorNode = postAuthorNode.ChildNodes.FirstOrDefault(n => n.GetAttributeValue("class", "").Equals("postinfo"));
if (authorNode != null)
{
authorNode = authorNode.ChildNodes[1]; // a
string authorUserIdStr = authorNode.Attributes[1].Value.Substring("space.php?uid=".Length);
if (authorUserIdStr.Contains("&"))
{
authorUserId = Convert.ToInt32(authorUserIdStr.Split('&')[0]);
}
else
{
authorUserId = Convert.ToInt32(authorUserIdStr);
}
authorUsername = authorNode.InnerText;
}
// 判断当前用户是否已被屏蔽，是则跳过
if (_myRoamingSettings.BlockUsers.Any(u => u.UserId == authorUserId && u.ForumId == forumId))
{
j++;
continue;
}
var floorPostInfoNode = postContentNode.ChildNodes.FirstOrDefault(n => n.GetAttributeValue("class", "").StartsWith("postinfo")); // div
var floorLinkNode = floorPostInfoNode.ChildNodes[1].ChildNodes[0]; // a
int postId = Convert.ToInt32(floorLinkNode.Attributes["id"].Value.Replace("postnum", string.Empty));
var floorNumNode = floorLinkNode.ChildNodes[0]; // em
int floor = Convert.ToInt32(floorNumNode.InnerText);
if (floor == 1)
{
threadAuthorUserId = authorUserId;
threadAuthorUsername = authorUsername;
var threadTitleNode = postContentNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("id", "").Equals("threadtitle"));
if (threadTitleNode != null)
{
var h1 = threadTitleNode.ChildNodes[1];
var a = h1.Descendants().FirstOrDefault(n => n.Name.Equals("a"));
if (a != null)
{
h1.RemoveChild(a); // 移除版块名称
}
threadTitle = h1.InnerText.Trim();
threadTitle = CommonService.MyHtmlDecodeForLoad(threadTitle);
}
}
string postTime = string.Empty;
var postTimeNode = postContentNode.Descendants().FirstOrDefault(n => n.Name.Equals("em") && n.GetAttributeValue("id", "").StartsWith("authorposton")); // em
if (postTimeNode != null)
{
postTime = postTimeNode.InnerText
.Replace("发表于 ", string.Empty)
.Replace(string.Format("{0}-{1}-{2} ", DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day), string.Empty)
.Replace(string.Format("{0}-", DateTime.Now.Year), string.Empty);
}
string textContent = string.Empty;
string xamlContent = string.Empty;
int imageCount = 0;
int inAppLinkCount = 0;
var contentNode = postContentNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("class", "").Equals("t_msgfontfix"));
if (contentNode != null)
{
// 用于回复引用
textContent = contentNode.InnerText.Trim();
textContent = new Regex("\r\n").Replace(textContent, "↵");
textContent = new Regex("\r").Replace(textContent, "↵");
textContent = new Regex("\n").Replace(textContent, "↵");
textContent = new Regex(@"↵{1,}").Replace(textContent, "\r\n");
textContent = textContent.Replace(" ", " ");
// 转换HTML为XAML
string htmlContent = contentNode.InnerHtml.Trim();
var ary = Html.HtmlToXaml.ConvertPost(postId, threadId, forumId, forumName, htmlContent, _floorNoDic, ref InAppLinkUrlDic);
xamlContent = ary[0];
inAppLinkCount = Convert.ToInt32(ary[1]);
}
else
{
xamlContent = $@"<StackPanel xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation""><RichTextBlock><Paragraph>作者被禁止或删除 内容自动屏蔽</Paragraph></RichTextBlock></StackPanel>";
}
var reply = new ReplyItemModel(i, j, floor, postId, pageNo, forumId, forumName, threadId, threadTitle, threadAuthorUserId, authorUserId, authorUsername, textContent, xamlContent, postTime, imageCount, false, inAppLinkCount);
threadReply.Replies.Add(reply);
if (!_floorNoDic.ContainsKey(postId))
{
_floorNoDic.Add(postId, new string[] { authorUserId.ToString(), floor.ToString() });
}
i++;
j++;
}
// 如果本次有加载到数据，则为数据列表的末尾添加一项“载入已完成”的标记项
// 方便在加载完成时显示“---完---”
// 注意在下一页开始加载前移除此标记项
if (i > 0)
{
var lastItem = threadReply.Replies.Last();
var flag = new ReplyItemModel(lastItem.Index + 1, lastItem.Index2, -1, -1, lastItem.PageNo, -1, string.Empty, lastItem.ThreadId, string.Empty, -1, -1, string.Empty, string.Empty, string.Empty, string.Empty, -1, false, 0);
flag.IsLast = true;
threadReply.Replies.Add(flag);
}
// 加入历史记录
ApplicationView.GetForCurrentView().Title = $"{CommonService.ReplaceEmojiLabel(threadTitle)} - {CommonService.ReplaceEmojiLabel(forumName)}";
_threadHistoryListBoxViewModel.Add(new ThreadItemModelBase {
ThreadId = threadId, Title = threadTitle, ForumId = forumId, ForumName = forumName, AuthorUserId = threadAuthorUserId, AuthorUsername = threadAuthorUsername
});
int index = threadReply.Replies.Last().Index;
return(new int[] { pageNo, index, threadId });
}
public static async Task <PostEditDataModel> LoadContentForEditAsync(CancellationTokenSource cts, int postId, int threadId)
{
string url = $"http://www.hi-pda.com/forum/post.php?action=edit&tid={threadId}&pid={postId}&_={DateTime.Now.Ticks.ToString("x")}";
string htmlContent = await _httpClient.GetAsync(url, cts);
// 实例化 HtmlAgilityPack.HtmlDocument 对象
HtmlDocument doc = new HtmlDocument();
// 载入HTML
doc.LoadHtml(htmlContent);
// 标题
string title = string.Empty;
var subjectInput = doc.DocumentNode.Descendants().FirstOrDefault(n => n.Name.Equals("input") && n.GetAttributeValue("prompt", string.Empty).Equals("post_subject"));
if (subjectInput != null)
{
title = subjectInput.Attributes["value"].Value;
title = CommonService.MyHtmlDecodeForLoad(title);
}
// 内容
string content = string.Empty;
var contentTextArea = doc.DocumentNode.Descendants().FirstOrDefault(n => n.Name.Equals("textarea") && n.GetAttributeValue("prompt", string.Empty).Equals("post_message"));
if (contentTextArea != null)
{
content = contentTextArea.InnerText.Replace(SendService.MessageTail, string.Empty).TrimEnd();
content = CommonService.MyHtmlDecodeForLoad(content);
}
// 读取图片附件
var attachFileList = new ObservableCollection <AttachFileItemModel>();
var uploadFileListNodes = doc.DocumentNode.Descendants().Where(n => n.Name.Equals("div") && n.GetAttributeValue("class", string.Empty).Equals("upfilelist"));
var imgList = uploadFileListNodes.First()?.ChildNodes.FirstOrDefault(n => n.Name.Equals("table") && n.GetAttributeValue("class", string.Empty).Equals("imglist"));
if (imgList != null)
{
var images = imgList.Descendants().Where(n => n.Name.Equals("img") && n.GetAttributeValue("src", string.Empty).StartsWith("attachments/day_") && n.GetAttributeValue("id", string.Empty).StartsWith("image_"));
if (images != null)
{
foreach (var img in images)
{
string id = img.GetAttributeValue("id", string.Empty).Replace("image_", string.Empty);
string src = img.GetAttributeValue("src", string.Empty);
//src = $"http://www.hi-pda.com/forum/{src}";
attachFileList.Add(new AttachFileItemModel(0, id, src, true));
}
}
}
// 读取文件附件
var fileList = uploadFileListNodes.Last()?.ChildNodes.FirstOrDefault(n => n.Name.Equals("table") && n.GetAttributeValue("summary", string.Empty).Equals("post_attachbody"));
if (fileList != null)
{
var fileLinks = fileList.Descendants().Where(n => n.Name.Equals("a") && (n.GetAttributeValue("onclick", string.Empty).StartsWith("insertAttachTag(") || n.GetAttributeValue("onclick", string.Empty).StartsWith("insertAttachimgTag(")));
if (fileLinks != null)
{
foreach (var link in fileLinks)
{
string attr = link.GetAttributeValue("onclick", string.Empty);
if (attr.StartsWith("insertAttachTag("))
{
string id = attr.Replace("insertAttachTag('", string.Empty).Replace("')", string.Empty);
string fileName = link.InnerText.Trim();
attachFileList.Add(new AttachFileItemModel(1, id, fileName, true));
}
else if (attr.StartsWith("insertAttachimgTag("))
{
string id = attr.Replace("insertAttachimgTag('", string.Empty).Replace("')", string.Empty);
var imgNode = fileList.Descendants().FirstOrDefault(f => f.Name.Equals("img") && f.GetAttributeValue("id", string.Empty).StartsWith($"image_{id}"));
string src = imgNode.Attributes[0].Value;
//src = $"http://www.hi-pda.com/forum/{src}";
attachFileList.Add(new AttachFileItemModel(0, id, src, true));
}
}
}
}
return(new PostEditDataModel(postId, threadId, title, content, attachFileList));
}
async Task <string> LoadTopReplyDataAsync(int threadId, CancellationTokenSource cts)
{
string threadTitle = string.Empty;
int threadAuthorUserId = 0;
string threadAuthorUsername = string.Empty;
// 读取数据
string url = string.Format("http://www.hi-pda.com/forum/viewthread.php?tid={0}&page=1", threadId);
string htmlStr = await _httpClient.GetAsync(url, cts);
// 实例化 HtmlAgilityPack.HtmlDocument 对象
HtmlDocument doc = new HtmlDocument();
// 载入HTML
doc.LoadHtml(htmlStr);
var data = doc.DocumentNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("id", "").Equals("postlist"))?.ChildNodes;
if (data == null)
{
return(null);
}
var item = data[0];
var mainTable = item.Descendants().FirstOrDefault(n => n.Name.Equals("table") && n.GetAttributeValue("summary", "").StartsWith("pid") && n.GetAttributeValue("id", "").Equals(n.GetAttributeValue("summary", "")));
var postAuthorNode = mainTable // table
.ChildNodes[1] // tr
.ChildNodes[1]; // td.postauthor
var postContentNode = mainTable // table
.ChildNodes[1] // tr
.ChildNodes[3]; // td.postcontent
int authorUserId = 0;
var authorNode = postAuthorNode.ChildNodes.FirstOrDefault(n => n.GetAttributeValue("class", "").Equals("postinfo"));
if (authorNode != null)
{
authorNode = authorNode.ChildNodes[1]; // a
string authorUserIdStr = authorNode.Attributes[1].Value.Substring("space.php?uid=".Length);
if (authorUserIdStr.Contains("&"))
{
authorUserId = Convert.ToInt32(authorUserIdStr.Split('&')[0]);
}
else
{
authorUserId = Convert.ToInt32(authorUserIdStr);
}
threadAuthorUserId = authorUserId;
threadAuthorUsername = authorNode.InnerText.Trim();
}
var threadTitleNode = postContentNode.Descendants().FirstOrDefault(n => n.Name.Equals("div") && n.GetAttributeValue("id", "").Equals("threadtitle"));
if (threadTitleNode != null)
{
var h1 = threadTitleNode.ChildNodes[1];
var a = h1.Descendants().FirstOrDefault(n => n.Name.Equals("a"));
if (a != null)
{
h1.RemoveChild(a); // 移除版块名称
}
threadTitle = h1.InnerText.Trim();
threadTitle = CommonService.MyHtmlDecodeForLoad(threadTitle);
}
return($"{threadAuthorUserId},{threadAuthorUsername},{threadTitle}");
}
