protected void LoadInternal(BEncodedDictionary torrentInformation)
{
Check.TorrentInformation(torrentInformation);
torrentPath = "";
try
{
foreach (KeyValuePair <BEncodedString, BEncodedValue> keypair in torrentInformation)
{
switch (keypair.Key.Text)
{
case ("announce"):
// Ignore this if we have an announce-list
if (torrentInformation.ContainsKey("announce-list"))
{
break;
}
announceUrls.Add(new MonoTorrentCollection <string>());
announceUrls[0].Add(keypair.Value.ToString());
break;
case ("creation date"):
try
{
try
{
creationDate = creationDate.AddSeconds(long.Parse(keypair.Value.ToString()));
}
catch (Exception e)
{
if (e is ArgumentOutOfRangeException)
{
creationDate = creationDate.AddMilliseconds(long.Parse(keypair.Value.ToString()));
}
else
{
throw;
}
}
}
catch (Exception e)
{
if (e is ArgumentOutOfRangeException)
{
throw new BEncodingException("Argument out of range exception when adding seconds to creation date.", e);
}
else if (e is FormatException)
{
throw new BEncodingException(String.Format("Could not parse {0} into a number", keypair.Value), e);
}
else
{
throw;
}
}
break;
case ("nodes"):
nodes = (BEncodedList)keypair.Value;
break;
case ("comment.utf-8"):
if (keypair.Value.ToString().Length != 0)
{
comment = keypair.Value.ToString(); // Always take the UTF-8 version
}
break; // even if there's an existing value
case ("comment"):
if (String.IsNullOrEmpty(comment))
{
comment = keypair.Value.ToString();
}
break;
case ("publisher-url.utf-8"): // Always take the UTF-8 version
publisherUrl = keypair.Value.ToString(); // even if there's an existing value
break;
case ("publisher-url"):
if (String.IsNullOrEmpty(publisherUrl))
{
publisherUrl = keypair.Value.ToString();
}
break;
case ("azureus_properties"):
azureusProperties = keypair.Value;
break;
case ("created by"):
createdBy = keypair.Value.ToString();
break;
case ("encoding"):
encoding = keypair.Value.ToString();
break;
case ("info"):
using (SHA1 s = HashAlgoFactory.Create <SHA1>())
infoHash = new InfoHash(s.ComputeHash(keypair.Value.Encode()));
ProcessInfo(((BEncodedDictionary)keypair.Value));
break;
case ("name"): // Handled elsewhere
break;
case ("announce-list"):
if (keypair.Value is BEncodedString)
{
break;
}
BEncodedList announces = (BEncodedList)keypair.Value;
for (int j = 0; j < announces.Count; j++)
{
if (announces[j] is BEncodedList)
{
BEncodedList bencodedTier = (BEncodedList)announces[j];
List <string> tier = new List <string>(bencodedTier.Count);
for (int k = 0; k < bencodedTier.Count; k++)
{
tier.Add(bencodedTier[k].ToString());
}
Toolbox.Randomize <string>(tier);
MonoTorrentCollection <string> collection = new MonoTorrentCollection <string>(tier.Count);
for (int k = 0; k < tier.Count; k++)
{
collection.Add(tier[k]);
}
if (collection.Count != 0)
{
announceUrls.Add(collection);
}
}
else
{
throw new BEncodingException(String.Format("Non-BEncodedList found in announce-list (found {0})",
announces[j].GetType()));
}
}
break;
case ("httpseeds"):
// This form of web-seeding is not supported.
break;
case ("url-list"):
if (keypair.Value is BEncodedString)
{
getRightHttpSeeds.Add(((BEncodedString)keypair.Value).Text);
}
else if (keypair.Value is BEncodedList)
{
foreach (BEncodedString str in (BEncodedList)keypair.Value)
{
GetRightHttpSeeds.Add(str.Text);
}
}
break;
default:
break;
}
}
}
catch (Exception e)
{
if (e is BEncodingException)
{
throw;
}
else
{
throw new BEncodingException("", e);
}
}
}
/// <summary>
/// This method is called internally to load in all the files found within the "Files" section
/// of the .torrents infohash
/// </summary>
/// <param name="list">The list containing the files available to download</param>
private void LoadTorrentFiles(BEncodedList list)
{
List <TorrentFile> files = new List <TorrentFile>();
int endIndex;
long length;
string path;
byte[] md5sum;
byte[] ed2k;
byte[] sha1;
int startIndex;
StringBuilder sb = new StringBuilder(32);
foreach (BEncodedDictionary dict in list)
{
length = 0;
path = null;
md5sum = null;
ed2k = null;
sha1 = null;
foreach (KeyValuePair <BEncodedString, BEncodedValue> keypair in dict)
{
switch (keypair.Key.Text)
{
case ("sha1"):
sha1 = ((BEncodedString)keypair.Value).TextBytes;
break;
case ("ed2k"):
ed2k = ((BEncodedString)keypair.Value).TextBytes;
break;
case ("length"):
length = long.Parse(keypair.Value.ToString());
break;
case ("path.utf-8"):
foreach (BEncodedString str in ((BEncodedList)keypair.Value))
{
sb.Append(str.Text);
sb.Append(Path.DirectorySeparatorChar);
}
path = sb.ToString(0, sb.Length - 1);
sb.Remove(0, sb.Length);
break;
case ("path"):
if (string.IsNullOrEmpty(path))
{
foreach (BEncodedString str in ((BEncodedList)keypair.Value))
{
sb.Append(str.Text);
sb.Append(Path.DirectorySeparatorChar);
}
path = sb.ToString(0, sb.Length - 1);
sb.Remove(0, sb.Length);
}
break;
case ("md5sum"):
md5sum = ((BEncodedString)keypair.Value).TextBytes;
break;
default:
break; //FIXME: Log unknown values
}
}
// A zero length file always belongs to the same piece as the previous file
if (length == 0)
{
if (files.Count > 0)
{
startIndex = files[files.Count - 1].EndPieceIndex;
endIndex = files[files.Count - 1].EndPieceIndex;
}
else
{
startIndex = 0;
endIndex = 0;
}
}
else
{
startIndex = (int)(size / pieceLength);
endIndex = (int)((size + length) / pieceLength);
if ((size + length) % pieceLength == 0)
{
endIndex--;
}
}
size += length;
files.Add(new TorrentFile(path, length, startIndex, endIndex, md5sum, ed2k, sha1));
}
torrentFiles = files.ToArray();
}