private void OnDownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
BookEventArg file = e.UserState as BookEventArg;
file.Progress = e.ProgressPercentage;
BookDownloading?.Invoke(this, file);
}
protected void OnBookFound(BookEventArg e)
{
e.Category = _keyword;
BookFound?.Invoke(this, e);
if (e.Download)
{
DownloadBook(e);
}
}
private void browseToolStripMenuItem_Click(object sender, EventArgs e)
{
if (lvwBooks.SelectedItems.Count <= 0)
{
return;
}
ListViewItem item = lvwBooks.SelectedItems[0];
BookEventArg book = item.Tag as BookEventArg;
Process.Start(book.URL);
}
private void OnFileDownloading(object sender, BookEventArg e)
{
if (lvwBooks.InvokeRequired)
{
this.Invoke(new Provider.BookDownloadingEventHandler(OnFileDownloading), new object[] { sender, e });
}
else
{
ListViewItem item = lvwBooks.Items[e.Index];
item.SubItems[3].Text = e.Progress.ToString();
}
}
private void chbGroupByKeyword_CheckedChanged(object sender, EventArgs e)
{
foreach (ListViewItem item in lvwBooks.Items)
{
BookEventArg book = item.Tag as BookEventArg;
if (book != null)
{
book.Group = chbGroupByKeyword.Checked;
OnFileFound(this, book);
}
}
}
private void explorerToolStripMenuItem_Click(object sender, EventArgs e)
{
if (lvwBooks.SelectedItems.Count <= 0)
{
return;
}
ListViewItem item = lvwBooks.SelectedItems[0];
BookEventArg book = item.Tag as BookEventArg;
Process.Start("EXPLORER", "/SELECT," + book.Path);
}
private void OnFileDownloaded(object sender, BookEventArg e)
{
if (lvwBooks.InvokeRequired)
{
this.Invoke(new Provider.BookDownloadCompletedEventHandler(OnFileDownloaded), new object[] { sender, e });
}
else
{
ListViewItem item = lvwBooks.Items[e.Index];
item.SubItems[3].Text = e.Path;
item.ImageIndex = e.Status;
}
}
private void exportListMenuItem_Click(object sender, EventArgs e)
{
if (saveFileDialog.ShowDialog() != DialogResult.OK)
{
return;
}
XmlWriter xmlWriter = null;
try
{
xmlWriter = XmlWriter.Create(saveFileDialog.FileName);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "eBookDownloader", MessageBoxButtons.OK, MessageBoxIcon.Error);
xmlWriter = null;
return;
}
if (xmlWriter != null)
{
xmlWriter.WriteStartDocument();
xmlWriter.WriteStartElement("books");
Provider provider = cbbProviders.SelectedItem as Provider;
if (provider != null)
{
xmlWriter.WriteAttributeString("provider", provider.Name);
}
foreach (ListViewItem item in lvwBooks.Items)
{
BookEventArg book = item.Tag as BookEventArg;
if (book != null)
{
xmlWriter.WriteStartElement("book");
xmlWriter.WriteAttributeString("title", book.Title);
xmlWriter.WriteAttributeString("url", book.URL);
xmlWriter.WriteEndElement();
}
}
xmlWriter.WriteEndElement();
xmlWriter.WriteEndDocument();
xmlWriter.Flush();
xmlWriter.Close();
MessageBox.Show("Items are exported successfully.", "eBookDownloader", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void OnDownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
{
BookEventArg book = e.UserState as BookEventArg;
if (progressBar.InvokeRequired)
{
progressBar.Invoke(new MethodInvoker(delegate {
progressBar.Value++;
}));
}
else
{
progressBar.Value++;
}
}
private void copyLinkMenuItem_Click(object sender, EventArgs e)
{
if (lvwBooks.SelectedItems.Count <= 0)
{
return;
}
ListViewItem item = lvwBooks.SelectedItems[0];
BookEventArg book = item.Tag as BookEventArg;
try
{
Clipboard.Clear();
Clipboard.SetText(book.URL);
}
catch (Exception ex)
{
DebugPrint(ex.Message);
}
}
private void OnDownloadFinished(object sender, AsyncCompletedEventArgs e)
{
BookEventArg file = e.UserState as BookEventArg;
if (e.Cancelled)
{
file.Status = -1;
}
else if (e.Error != null) //Failed
{
file.Status = e.Error.HResult;
}
else //Success
{
file.Status = 0;
}
BookDownloadCompleted?.Invoke(this, file);
_downloaders.Remove(file.URL);
}
private void btnBrowseWorkingDir_Click(object sender, EventArgs e)
{
folderBrowserDialog.SelectedPath = txtWorkingDirectory.Text;
if (folderBrowserDialog.ShowDialog() != DialogResult.OK)
{
return;
}
if (txtWorkingDirectory.Text != folderBrowserDialog.SelectedPath)
{
txtWorkingDirectory.Text = folderBrowserDialog.SelectedPath;
foreach (ListViewItem item in lvwBooks.Items)
{
BookEventArg book = item.Tag as BookEventArg;
if (book != null)
{
OnFileFound(this, book);
}
}
}
}
protected override KeyValuePair <string, string> SearchLink(string link)
{
HttpWebRequest httpReq = WebRequest.Create(Home + link) as HttpWebRequest;
KeyValuePair <string, string> file = new KeyValuePair <string, string>();
if (httpReq != null)
{
if (IsCancel)
{
return(file);
}
WebResponse webResponse = httpReq.GetResponse();
Stream html = webResponse.GetResponseStream();
StreamReader reader = new StreamReader(html);
string htmlString = reader.ReadToEnd();
string strDIVOpen = "<div";
string strDIVClose = "</div>";
string signal = "<a target=\"_blank\" class=\"btn btn-block btn-sm btn-primary\" href=\"";
int first = htmlString.IndexOf(strDIVOpen, 0);
int last = 0;
string strLink = string.Empty;
bool bFoundCloseTag = false;
string strhRef = string.Empty;
string strTitle = string.Empty;
int ff = 0, ll = 0;
int ff2 = 0, ll2 = 0;
string bookPath = string.Empty;
while (first > 0 && first < htmlString.Length)
{
if (IsCancel)
{
return(file);
}
bFoundCloseTag = true;
last = htmlString.IndexOf(strDIVClose, first + strDIVOpen.Length + 1);
if ((last > htmlString.Length) || (-1 == last))
{
last = htmlString.Length;
bFoundCloseTag = false;
}
strhRef = htmlString.Substring(first + strDIVOpen.Length, last - first - (bFoundCloseTag ? strDIVClose.Length : 0));
ff = strhRef.IndexOf("class=\"book-image\"");
if (ff > 0)
{
ff = strhRef.IndexOf("<img alt=\"", ff);
if ((ff > 0) && (ff < strhRef.Length))
{
ff += "<img alt=\"".Length;
ll = strhRef.IndexOf("\"", ff);
if ((ll > strhRef.Length) || (-1 == ll))
{
ll = strhRef.Length;
}
strTitle = strhRef.Substring(ff, ll - ff).Trim();
}
}
ff2 = strhRef.IndexOf(signal);
if (ff2 > 0)
{
ff2 += signal.Length;
ll2 = strhRef.IndexOf("\"", ff2);
if (-1 != ll2)
{
strLink = strhRef.Substring(ff2, ll2 - ff2);
if (strLink.Length > 0)
{
string strID = string.Empty;
int nPos = strLink.LastIndexOf("/");
int nStart = 0;
int nEnd = strLink.Length;
if (nPos > 0)
{
nStart = nPos + 1;
}
nPos = strLink.LastIndexOf(".");
if (nPos <= nStart)
{
nPos = strLink.Length;
}
nEnd = nPos - 1;
strID = strLink.Substring(nStart, nEnd - nStart + 1);
file = new KeyValuePair <string, string>(strLink, WebUtility.HtmlDecode(WebUtility.HtmlDecode(strTitle)));
BookEventArg e = new BookEventArg(strID, file.Value, file.Key);
OnBookFound(e);
return(file);
}
}
}
first = htmlString.IndexOf(strDIVOpen, last + (bFoundCloseTag ? strDIVClose.Length : 0) + 1);
if (first < 0)
{
break;
}
}
}
return(new KeyValuePair <string, string>());
}
private void OnDownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
BookEventArg book = e.UserState as BookEventArg;
}
private void OnFileFound(object sender, BookEventArg e)
{
if (sender == this)
{
string strDir = txtWorkingDirectory.Text;
if (strDir.Substring(strDir.Length - 1, 1) != "\\")
{
strDir += "\\";
}
string strExt = string.Empty;
string strCategory = string.Empty;
int nPos = e.URL.LastIndexOf(".");
if (nPos > 0)
{
strExt = e.URL.Substring(nPos + 1);
}
if (e.Group)
{
strCategory = e.Category;
}
string strFullPath = strDir;
if (strExt != string.Empty)
{
if (strCategory != string.Empty)
{
strFullPath += ReplaceSpecialCharacters(strCategory);
strFullPath += "\\";
}
strFullPath += (ReplaceSpecialCharacters(e.Title) + "." + strExt);
}
else
{
strFullPath += ReplaceSpecialCharacters(e.Title);
}
e.Path = strFullPath;
lvwBooks.Items[e.Index].SubItems[3].Text = e.Path;
}
else
{
if (lvwBooks.InvokeRequired)
{
this.Invoke(new Provider.BookFoundEventHandler(OnFileFound), new object[] { sender, e });
}
else
{
ListViewItem item = lvwBooks.Items.Add((lvwBooks.Items.Count + 1).ToString());
item.ImageIndex = -1;
item.SubItems.Add(e.Title);
item.SubItems.Add(e.URL);
lvwBooks.EnsureVisible(item.Index);
if (!lblKeyword.Visible)
{
progressBar.Width = lblKeyword.Left - progressBar.Left;
lblKeyword.Visible = true;
}
string category = WebUtility.UrlDecode(WebUtility.UrlDecode(e.Category));
if (lblKeyword.Text != category)
{
lblKeyword.Text = category;
progressBar.Width = lblKeyword.Left - progressBar.Left;
}
e.Overwriten = chbOverwritenDownload.Checked;
e.Download = chbAutoDownload.Checked;
e.Group = chbGroupByKeyword.Checked;
string strDir = txtWorkingDirectory.Text;
if (strDir.Substring(strDir.Length - 1, 1) != "\\")
{
strDir += "\\";
}
string strExt = string.Empty;
string strCategory = string.Empty;
int nPos = e.URL.LastIndexOf(".");
if (nPos > 0)
{
strExt = e.URL.Substring(nPos + 1);
}
if (e.Group)
{
strCategory = e.Category;
}
string strFullPath = strDir;
if (strExt != string.Empty)
{
if (strCategory != string.Empty)
{
strFullPath += strCategory;
strFullPath += "\\";
}
strFullPath += (ReplaceSpecialCharacters(e.Title) + "." + strExt);
}
else
{
strFullPath += ReplaceSpecialCharacters(e.Title);
}
e.Path = strFullPath;
item.SubItems.Add(e.Path);
item.Tag = e;
e.Index = item.Index;
}
}
}
private void lvwBooks_DragDrop(object sender, DragEventArgs e)
{
string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
foreach (string file in files)
{
XmlDocument xmlDocument = new XmlDocument();
try
{
xmlDocument.Load(file);
XmlElement docElm = xmlDocument.DocumentElement;
if (docElm != null && docElm.ChildNodes.Count > 0)
{
XmlNode elm = docElm.FirstChild;
lvwBooks.Items.Clear();
string title = string.Empty;
string url = string.Empty;
string id = string.Empty;
int pos = -1;
while (elm != null)
{
title = string.Empty;
url = string.Empty;
id = string.Empty;
foreach (XmlAttribute xmlAttribute in elm.Attributes)
{
if (xmlAttribute.Name == "title")
{
title = xmlAttribute.Value;
}
else if (xmlAttribute.Name == "url")
{
url = xmlAttribute.Value;
}
}
if (url != string.Empty)
{
pos = url.LastIndexOf("/");
if (pos > 0)
{
id = url.Substring(pos + 1);
}
else
{
id = url;
}
ListViewItem item = lvwBooks.Items.Add(string.Format("{0}", lvwBooks.Items.Count + 1));
if (item != null)
{
BookEventArg book = new BookEventArg(id, title, url);
book.Index = item.Index;
item.Tag = book;
item.SubItems.Add(book.Title);
item.SubItems.Add(book.URL);
item.SubItems.Add(string.Empty);
this.OnFileFound(this, book);
}
}
elm = elm.NextSibling;
}
}
}
catch (Exception ex)
{
xmlDocument = null;
MessageBox.Show(ex.Message, "Import Files", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
break; //Use first file only
}
}
protected void DownloadBook(BookEventArg e)
{
if (IsCancel)
{
e.Status = -1;
e.Progress = 100;
BookDownloadCompleted?.Invoke(this, e);
return;
}
WebClient webClient = null;
if (_downloaders.ContainsKey(e.URL))
{
webClient = _downloaders[e.URL];
}
else
{
webClient = new WebClient();
webClient.DownloadFileCompleted += new AsyncCompletedEventHandler(OnDownloadFinished);
webClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(OnDownloadProgressChanged);
_downloaders.Add(e.URL, webClient);
}
if (IsCancel)
{
e.Status = -1;
e.Progress = 100;
BookDownloadCompleted?.Invoke(this, e);
return;
}
if (webClient != null)
{
if (webClient.IsBusy)
{
webClient.CancelAsync();
}
if (File.Exists(e.Path))
{
System.IO.FileInfo fi = new FileInfo(e.Path);
if (fi.Length > 0)
{
BookDownloadingFileExist?.Invoke(this, e);
if (!e.Overwriten)
{
e.Status = 2;
e.Progress = 100;
BookDownloadCompleted?.Invoke(this, e);
return;
}
}
}
if (IsCancel)
{
e.Status = -1;
e.Progress = 100;
BookDownloadCompleted?.Invoke(this, e);
return;
}
try
{
if (EnsureDirectoryExist(e.Path))
{
webClient.DownloadFile(new Uri(e.URL), e.Path);
e.Status = 0;
}
else
{
e.Status = -1;
}
e.Progress = 100;
BookDownloadCompleted?.Invoke(this, e);
return;
}
catch (Exception ex)
{
e.Status = 1;
e.Progress = 100;
BookDownloadCompleted?.Invoke(this, e);
return;
}
}
}
protected override KeyValuePair <string, string> SearchLink(string link)
{
string strHome = link.Substring(0, Home.Length);
string strURL = Home + link;
if (string.Compare(strHome, Home, true) == 0)
{
strURL = link;
}
HttpWebRequest httpReq = WebRequest.Create(strURL) as HttpWebRequest;
KeyValuePair <string, string> file = new KeyValuePair <string, string>();
if (httpReq != null)
{
if (IsCancel)
{
return(file);
}
WebResponse webResponse = httpReq.GetResponse();
Stream html = webResponse.GetResponseStream();
StreamReader reader = new StreamReader(html);
string htmlString = reader.ReadToEnd();
string strDIVOpen = "<h1 class=\"single-title\">";
string strDIVClose = "</h1>";
int first = htmlString.IndexOf(strDIVOpen, 0);
int last = htmlString.IndexOf(strDIVClose, first + strDIVOpen.Length);
string strLink = string.Empty;
string strTemp = string.Empty;
string strTitle = string.Empty;
strURL = string.Empty;
if (first > 0)
{
if (last < first)
{
last = htmlString.Length;
}
strTitle = htmlString.Substring(first + strDIVOpen.Length, last - first - strDIVOpen.Length).Trim();
}
strDIVOpen = "<span class=\"download-links\">";
strDIVClose = "</span>";
first = htmlString.IndexOf(strDIVOpen, first);
if (first > 0)
{
last = htmlString.IndexOf(strDIVClose, first);
if (last > first)
{
strDIVOpen = "<a href=\"";
strDIVClose = "\"";
first = htmlString.IndexOf(strDIVOpen, first);
if (first > 0)
{
last = htmlString.IndexOf(strDIVClose, first + strDIVOpen.Length);
if (last > first)
{
strURL = htmlString.Substring(first + strDIVOpen.Length, last - first - strDIVOpen.Length);
if (strURL.Length > 0)
{
first = strURL.LastIndexOf("/");
last = strURL.LastIndexOf(".");
if (last < first)
{
last = strURL.Length;
}
string strID = strURL.Substring(first, last - first + 1);
if (strTitle == string.Empty)
{
strTitle = strID;
}
file = new KeyValuePair <string, string>(strURL, WebUtility.HtmlDecode(strTitle));
BookEventArg e = new BookEventArg(strID, file.Value, file.Key);
OnBookFound(e);
return(file);
}
}
}
}
}
}
return(new KeyValuePair <string, string>());
}
