protected void LoadInternal(BEncodedDictionary torrentInformation)
{
Check.TorrentInformation(torrentInformation);
_originalDictionary = torrentInformation;
TorrentPath = "";
try
{
foreach (var 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 RawTrackerTier());
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);
}
if (e is FormatException)
{
throw new BEncodingException(
string.Format("Could not parse {0} into a number", keypair.Value), e);
}
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"):
InfoHash = new InfoHash(SHA1Helper.ComputeHash(keypair.Value.Encode()));
ProcessInfo(((BEncodedDictionary)keypair.Value));
break;
case ("name"): // Handled elsewhere
break;
case ("announce-list"):
if (keypair.Value is BEncodedString)
{
break;
}
var announces = (BEncodedList)keypair.Value;
for (var j = 0; j < announces.Count; j++)
{
if (announces[j] is BEncodedList)
{
var bencodedTier = (BEncodedList)announces[j];
var tier = new List <string>(bencodedTier.Count);
for (var k = 0; k < bencodedTier.Count; k++)
{
tier.Add(bencodedTier[k].ToString());
}
Toolbox.Randomize(tier);
var collection = new RawTrackerTier();
for (var 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;
}
throw new BEncodingException("", e);
}
}
private void ParseMagnetLink(string url)
{
var splitStr = url.Split('?');
if (splitStr.Length == 0 || splitStr[0] != "magnet:")
{
throw new FormatException("The magnet link must start with 'magnet:?'.");
}
if (splitStr.Length == 1)
{
return; //no parametter
}
var parameters = splitStr[1].Split('&', ';');
foreach (var keyval in parameters.Select(t => t.Split('=')))
{
if (keyval.Length != 2)
{
throw new FormatException("A field-value pair of the magnet link contain more than one equal'.");
}
switch (keyval[0].Substring(0, 2))
{
case "xt": //exact topic
if (InfoHash != null)
{
throw new FormatException("More than one infohash in magnet link is not allowed.");
}
var val = keyval[1].Substring(9);
if (keyval[1].Substring(0, 9) == "urn:sha1:" || keyval[1].Substring(0, 9) == "urn:btih:")
{
switch (val.Length)
{
case 32:
InfoHash = InfoHash.FromBase32(val);
break;
case 40:
InfoHash = InfoHash.FromHex(val);
break;
default:
throw new FormatException("Infohash must be base32 or hex encoded.");
}
}
break;
case "tr": //address tracker
var bytes = UriHelper.UrlDecode(keyval[1]);
AnnounceUrls.Add(Encoding.UTF8.GetString(bytes));
break;
case "as": //Acceptable Source
Webseeds.Add(keyval[1]);
break;
case "dn": //display name
var name = UriHelper.UrlDecode(keyval[1]);
Name = Encoding.UTF8.GetString(name);
break;
case "xl": //exact length
case "xs": // eXact Source - P2P link.
case "kt": //keyword topic
case "mt": //manifest topic
//not supported for moment
break;
default:
//not supported
break;
}
}
}
public override int GetHashCode()
{
return(InfoHash.GetHashCode());
}
