public static void AddDownload(byte[] fileHash, string fileName, long fileSize, string subFolder)
{
if (fileHash == null)
throw new ArgumentNullException("fileHash");
if (fileHash.Length != 64)
throw new ArgumentException();
if (fileName == null)
throw new ArgumentNullException("fileName");
if (fileSize < 0)
throw new ArgumentOutOfRangeException("fileSize");
try
{
m_DownloadsAndQueue.Lock();
if (m_DownloadsAndQueue.ContainsKey(ByteArrayToString(fileHash), DownloadCollection.KeyAccess.FileHash))
return;
Download download = new Download(fileHash, fileName, fileSize);
if (m_DownloadsAndQueue.Count >= Constants.MaximumDownloadsCount)
{
download.SetSubFolderAndTime(subFolder, null);
download.RemoveSources();
if (bool.Parse(Settings.Instance["NewDownloadsToBeginngingOfQueue"]))
m_DownloadsAndQueue.Insert(Constants.MaximumDownloadsCount, download);
else
m_DownloadsAndQueue.Add(download);
}
else
{
download.SetSubFolderAndTime(subFolder, DateTime.Now);
m_DownloadsAndQueue.Add(download);
}
}
finally
{
m_DownloadsAndQueue.Unlock();
}
DownloadsXmlWriter.Write(m_DownloadsFilePath, m_DownloadsAndQueue);
}
public static void AddDownload(Search.Result result, string subFolder)
{
if (result == null)
throw new ArgumentNullException("result");
try
{
m_DownloadsAndQueue.Lock();
if (m_DownloadsAndQueue.ContainsKey(ByteArrayToString(result.FileHash), DownloadCollection.KeyAccess.FileHash))
return;
Download download = new Download(result);
if (m_DownloadsAndQueue.Count >= Constants.MaximumDownloadsCount)
{
download.SetSubFolderAndTime(subFolder, null);
download.RemoveSources();
if (bool.Parse(Settings.Instance["NewDownloadsToBeginngingOfQueue"]))
m_DownloadsAndQueue.Insert(Constants.MaximumDownloadsCount, download);
else
m_DownloadsAndQueue.Add(download);
}
else
{
download.SetSubFolderAndTime(subFolder, DateTime.Now);
m_DownloadsAndQueue.Add(download);
}
}
finally
{
m_DownloadsAndQueue.Unlock();
}
DownloadsXmlWriter.Write(m_DownloadsFilePath, m_DownloadsAndQueue);
}
/// <summary>
/// Neue ResumeDownloads()
/// 10.06.2009 Lars
/// 03.07.2009 Lars (Neue Downloadwarteschlange)
/// 04.07.2009 Lars (Einfacheres und besseres Handling)
/// </summary>
private static void ResumeDownloads()
{
try
{
// Alle gesicherten Downloads einlesen
RIndexedHashtable<string, XmlNode> downloadsXml = new RIndexedHashtable<string, XmlNode>();
if (File.Exists(m_DownloadsFilePath))
{
XmlDocument downloadsXmlDocument = new XmlDocument();
downloadsXmlDocument.Load(m_DownloadsFilePath);
foreach (XmlNode downloadNode in downloadsXmlDocument.SelectSingleNode("downloads"))
try
{
downloadsXml.Add(downloadNode.Attributes["hash"].InnerText, downloadNode);
}
catch (Exception ex)
{
m_Logger.Log(ex, "A download cannot be resumed due to non existent information about it!");
continue;
}
}
// Alle vorhandenen Dateien durchgehen
RList<Download> temporary = new RList<Download>(downloadsXml.Count);
foreach (string filePath in Directory.GetFiles(Settings.Instance["TemporaryDirectory"]))
{
string fileName = new FileInfo(filePath).Name;
try
{
if (!Regex.IsMatch(fileName, "^[0-9A-F]{128,128}$", RegexOptions.IgnoreCase))
{
m_Logger.Log("The file \"{0}\" is no valid temporary download!", fileName);
}
XmlNode node;
if (!downloadsXml.TryGetValue(fileName, out node))
{
m_Logger.Log("The download of \"{0}\" cannot be resumed due to non existent information about it!", fileName);
continue;
}
bool hasInformation = true;
if ((node as XmlElement).HasAttribute("hasinformation") && (node as XmlElement).GetAttribute("hasinformation") == "none")
hasInformation = false;
string lastSeenString = null;
DateTime? lastSeen = null;
string lastReceptionString = null;
DateTime? lastReception = null;
String subfolder = string.Empty;
if (node.SelectSingleNode("lastseen") != null)
{
lastSeenString = node.SelectSingleNode("lastseen").InnerText;
if (lastSeenString != null && lastSeenString.Length > 0)
lastSeen = DateTime.Parse(lastSeenString);
}
if (node.SelectSingleNode("lastreception") != null)
{
lastReceptionString = node.SelectSingleNode("lastreception").InnerText;
if (lastReceptionString != null && lastReceptionString.Length > 0)
lastReception = DateTime.Parse(lastReceptionString);
}
if (node.SelectSingleNode("subfolder") != null)
subfolder = node.SelectSingleNode("subfolder").InnerText;
Download download = new Download(Core.FileHashStringToFileHash(fileName), node.SelectSingleNode("filename").InnerText, long.Parse(node.SelectSingleNode("filesize").InnerText), hasInformation, lastSeen, lastReception, hasInformation ? Convert.FromBase64String(node.SelectSingleNode("sectorsmap").InnerText) : null);
download.SetSubFolderAndTime(subfolder, null);
temporary.Add(download);
}
catch (Exception ex)
{
m_Logger.Log(ex, "An exception was thrown while resuming the download of \"{0}\"!", fileName);
}
}
// Wiederaufzunehmende Download sortieren
for (int n = 1; n <= temporary.Count - 1; n++)
for (int m = 0; m < temporary.Count - n; m++)
{
Download a = temporary[m];
Download b = temporary[m + 1];
if (downloadsXml.IndexOfKey(a.FileHashString) > downloadsXml.IndexOfKey(b.FileHashString))
{
temporary[m] = b;
temporary[m + 1] = a;
}
}
// Downloads wiederaufnehmen
try
{
m_DownloadsAndQueue.Lock();
foreach (Download download in temporary)
m_DownloadsAndQueue.Add(download);
}
finally
{
m_DownloadsAndQueue.Unlock();
}
}
catch (Exception ex)
{
m_Logger.Log(ex, "An exception was thrown while resuming downloads!");
}
finally
{
// Erst jetzt kann die downloads.xml wieder geschreiben werden...
DownloadsXmlWriter.SetIsReady();
}
}