/// <summary>
/// 從正文網頁內取得章節標題和內文
/// </summary>
public async Task <Chapter> GetChapterContent(ChapterLink chapterLink, CodePage codePage)
{
if (chapterLink == null || string.IsNullOrEmpty(chapterLink.Url))
{
return(null);
}
Chapter chapterGot;
if (IgnoreDownloaded && !string.IsNullOrEmpty(chapterLink.Content))
{
chapterGot = new Chapter(chapterLink.Title, chapterLink.Content);
}
else
{
string htmlString = await GetPageBodyAsync(chapterLink.Url, codePage);
HtmlDocument bookDocument = new HtmlDocument();
bookDocument.LoadHtml(htmlString);
chapterGot = GetChapterContent(bookDocument, chapterLink.Url);
chapterLink.Content = chapterGot.Content;
if (!string.IsNullOrEmpty(chapterGot.Content))
{
chapterLink.Downloaded = true; // mark as downloaded
}
}
return(chapterGot);
}
protected override BookLink GetChapterLinks(HtmlDocument htmlDoc, string baseUrl)
{
var titleNode = htmlDoc.DocumentNode.SelectSingleNode("//div[@id='title']");
var authorNode = htmlDoc.DocumentNode.SelectSingleNode("//div[@id='info']");
BookLink bookLink = new BookLink
{
IndexPage = baseUrl,
Title = Utilities.ToTraditional(titleNode?.InnerText),
Author = authorNode?.InnerText
};
baseUrl = Utilities.TrimEnd(baseUrl.ToLower(), "index.htm");
List <HtmlNode> tableRows = new List <HtmlNode>();
var tables = htmlDoc.DocumentNode.SelectNodes("//table[@class='css']");
foreach (var tableNode in tables)
{
tableRows.AddRange(tableNode.Descendants("tr"));
}
List <IssueLink> issueLinks = new List <IssueLink>();
foreach (var node in tableRows)
{
var titleRow = node.SelectSingleNode(".//td[@class='vcss']");
if (titleRow != null)
{
IssueLink b = new IssueLink
{
Title = Utilities.ToTraditional(titleRow.InnerText)
};
issueLinks.Add(b);
continue;
}
// 一個章節的 tr 裡面會有一個以上的 ccss 文章超連結
var chapterRows = node.SelectNodes(".//td[@class='ccss']");
foreach (var chapterRow in chapterRows)
{
var link = chapterRow.Descendants("a").FirstOrDefault();
if (link != null)
{
ChapterLink chapterLink = new ChapterLink();
chapterLink.Title = Utilities.ToTraditional(link.InnerText);
chapterLink.Url = baseUrl + link.Attributes["href"]?.Value;
issueLinks.Last()?.ChapterLinks.Add(chapterLink);
}
}
}
bookLink.IssueLinks = issueLinks;
return(bookLink);
}