/// <summary>
/// 直接下載一冊txt檔案至指定路徑
/// </summary>
public async Task <bool> DownloadIssueAsync(IssueLink issueLink, string path)
{
try
{
if (!path.EndsWith(".txt"))
{
path += ".txt";
}
string firstChapterUrl = issueLink.ChapterLinks.First().Url;
var(aidString, vidString) = ParseAidVid(firstChapterUrl);
// vid -1
if (int.TryParse(vidString, out int vid))
{
vid--;
string download = $"http://dl.wenku8.com/packtxt.php?aid={aidString}&vid={vid}&charset=big5";
Uri uri = new Uri(download);
using (WebClient client = new WebClient())
{
await client.DownloadFileTaskAsync(uri, path);
}
return(true);
}
Console.WriteLine("Cannot parse vid: " + vidString);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
return(false);
}
/// <summary>
/// 下載一冊書
/// </summary>
public async Task <Issue> GetIssueAsync(IssueLink issueLink, CodePage codePage)
{
if (issueLink == null || issueLink.ChapterLinks.Count == 0)
{
return(null);
}
Issue issue = new Issue();
issue.Title = issueLink.Title;
foreach (var chapterLink in issueLink.ChapterLinks)
{
if (OnlyReturnNew)
{
if (!chapterLink.Downloaded || string.IsNullOrEmpty(chapterLink.Content))
{
issue.Chapters.Add(await GetChapterContent(chapterLink, codePage));
}
}
else
{
issue.Chapters.Add(await GetChapterContent(chapterLink, codePage));
}
await Task.Delay(SLEEP_MS);
}
return(issue);
}
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);
}
/// <summary>
/// 下載一冊書
/// </summary>
public async Task <Issue> GetIssueAsync(IssueLink issueLink)
{
if (issueLink == null || issueLink.ChapterLinks.Count == 0)
{
return(null);
}
Issue issue = new Issue();
issue.Title = issueLink.Title;
foreach (var chapterLink in issueLink.ChapterLinks)
{
issue.Chapters.Add(await GetChapterContent(chapterLink.Url));
await Task.Delay(SLEEP_MS);
}
return(issue);
}
public void TryAddNewIssues(BookLink newBook)
{
if (newBook == null || object.ReferenceEquals(this, newBook))
{
return;
}
if (newBook.IndexPage == IndexPage)
{
foreach (var newIssueLink in newBook.IssueLinks)
{
IssueLink sameIssue = IssueLinks.FirstOrDefault(i => i.Title == newIssueLink.Title && i.IndexNumber == newIssueLink.IndexNumber);
if (sameIssue == null)
{ // 沒有同一冊，直接加入
IssueLinks.Add(newIssueLink);
}
else
{ // 有同一冊，但是內部章節需要更新
sameIssue.TryAddNewChapters(newIssueLink);
}
}
}
}
