public string GetCoverImage(EBook book)
{
HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();
WebRequestHandler wrh = new WebRequestHandler();
WebClientHandler wch = new WebClientHandler();
EmailHandler eh = new EmailHandler();
//Search URL: https://www.goodreads.com/search?q=
//Search Result URL: /book/show/77566.Hyperion
//has the link to the page with the image we want
string hostSiteSearchPage = "https://www.goodreads.com/search?q=";
string htmlData = wrh.ProcessWebRequest(hostSiteSearchPage, book.uriBookTitle);
string coverImageLink = GetCoverImageLink(htmlData, book);
//Page that has the image we want
hostSiteSearchPage = "https://www.goodreads.com";
htmlData = wrh.ProcessWebRequest(hostSiteSearchPage, coverImageLink);
htmlDoc.LoadHtml(htmlData);
var link = htmlDoc.DocumentNode.Descendants("img")
.First(x => x.Attributes["id"] != null &&
x.Attributes["id"].Value == "coverImage");
string coverImageHref = link.Attributes["src"].Value;
if (coverImageHref != "")
{
var temp = coverImageHref.Split('.');
book.coverImageLocation += "." + temp[temp.Length - 1];
return(coverImageHref);
}
return("");
}
/*
* Main function for program.
* TODO: init
*/
public void DownloadBook()
{
EBook book = new EBook();
WebRequestHandler wrh = new WebRequestHandler();
HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();
HTMLScraper scraper = new HTMLScraper();
EmailHandler emailHandler = new EmailHandler();
WebClientHandler wch = new WebClientHandler();
string downloadFolder = "";
string coverImageHref = "";
string hostSiteSearchPage = "http://libgen.io/search.php?req=";
string htmlData = "";
string filePath = "";
string downloadPage = "";
string downloadLink = "";
try
{
tbLog.Text += "Initializing";
lblDownloadPercent.Text = "Downloading";
book.bookTitle = tbBookName.Text;
book.author = tbAuthor.Text;
downloadFolder = tbDownloadFolder.Text;
Directory.CreateDirectory(downloadFolder);
book.uriBookTitle = Regex.Replace(book.bookTitle + " - " + book.author, @"\s+", "+");
filePath = downloadFolder + "\\" + book.bookTitle + " - " + book.author + book.fileType; //C:\users\Alex\Downloads\Outliers-Malcolm Gladwell.mobi
book.coverImageLocation = downloadFolder + "\\" + book.bookTitle + " Cover";
//Parse htmldata with XPath and return link for file types mobi, epub, pdf
//returns htmlData page for initial search
htmlData = wrh.ProcessWebRequest(hostSiteSearchPage, book.uriBookTitle);
//Will set book.filetype, returns html with link to download
downloadPage = scraper.GetBookLinks(htmlData, book);
book.fileLocation = filePath + book.fileType;
htmlData = wrh.ProcessWebRequest(downloadPage, "");
downloadLink = scraper.GetDownloadLink(htmlData);
if (downloadLink != "")
{
lblDownloadPercent.Text = "Downloading " + book.fileType;
//Download the EBook
Download(downloadLink, book.fileLocation, book);
if (book.fileType == ".pdf" || book.fileType == ".epub")
{
coverImageHref = scraper.GetCoverImage(book);
Download(coverImageHref, book.coverImageLocation, book);
}
emailHandler.SendEmail(book, tbKindleEmail.Text);
}
else
{
tbLog.Text += "No link results";
}
}
catch (Exception s)
{
//TODO Log error
}
}