/// <summary>
/// Finds the peers that have the file and add them in the list of peers.
/// </summary>
public void FindPeers()
{
// search the file in net
Utilities.FileSearcher.SearchFile(this.Name);
// get the file from the list of found files
Lists.FilesFoundList.File file = Lists.FilesFoundList.GetFile(this.Name, this.SHA1);
if (file != null)
{
for (int i = 0; i < file.ListPeers.Count; i++)
{
try
{
Objects.Peer peer = Lists.PeersList.GetPeerByIP(file.ListPeers[i].IP);
if (peer != null)
{
AddPeer(peer);
}
}
catch
{
}
}
}
}
/// <summary>
/// Creates a new download from a exist file in the list of the found files.
/// </summary>
/// <param name="FileName">The name of the file.</param>
/// <param name="FileID">The ID of the file.</param>
public static void AddDownload(string FileName, string FileID)
{
Lists.FilesFoundList.File file = Lists.FilesFoundList.GetFile(FileName, FileID);
Objects.Download download = new Objects.Download(file.Name, file.Size, file.SHA1);
download.Active = true;
download.FindPeers();
if (List.Count > 0)
{
int n = 0;
int max = List.Count - 1;
int min = 0;
int compare = 0;
while (max >= min)
{
n = (max + min) / 2;
compare = FileID.CompareTo(List[n].SHA1);
if (compare > 0)
{
min = n + 1;
}
else if (compare < 0)
{
max = n - 1;
}
else
{
return;
}
}
if (compare < 0)
{
n--;
}
List.Add(List[List.Count - 1]);
for (int i = List.Count - 1; i > n + 1; i--)
{
List[i] = List[i - 1];
}
List[n + 1] = download;
}
else
{
List.Add(download);
}
NewOrUpdatedDownload = true;
}
/// <summary>
/// Updates a old file with a new file.
/// </summary>
/// <param name="OldFile">The old file.</param>
/// <param name="NewFile">The new file.</param>
public static Lists.FilesFoundList.File UpdateFile(Lists.FilesFoundList.File OldFile, Lists.FilesFoundList.File NewFile)
{
List <int> peerToAdd = new List <int>();
for (int i = 0; i < NewFile.ListPeers.Count; i++)
{
if (OldFile.GetPeerByIP(NewFile.ListPeers[i].IP) == null)
{
peerToAdd.Add(i);
}
}
for (int n = 0; n < peerToAdd.Count; n++)
{
OldFile.AddPeer(NewFile.ListPeers[peerToAdd[n]]);
}
return(OldFile);
}
