public void InfoHashTest()
{
MagnetLink link = MagnetLink.Parse("magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C");
Assert.AreEqual(InfoHash.FromBase32("YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C"), link.InfoHash, "#1");
//base32
InfoHash initial = new InfoHash(System.Text.Encoding.ASCII.GetBytes("foobafoobafoobafooba"));
link = MagnetLink.Parse("magnet:?xt=urn:sha1:MZXW6YTBMZXW6YTBMZXW6YTBMZXW6YTB");
Assert.AreEqual(initial, link.InfoHash, "#2");
//base40 = hex
InfoHash hash = Create();
string hex = hash.ToHex();
link = MagnetLink.Parse("magnet:?xt=urn:btih:" + hex);
Assert.AreEqual(hash, link.InfoHash, "#3");
}
void ParseMagnetLink(string url)
{
string[] 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
}
string[] parameters = splitStr[1].Split('&', ';');
for (int i = 0; i < parameters.Length; i++)
{
string[] keyval = parameters[i].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.");
}
string val = keyval[1].Substring(9);
switch (keyval[1].Substring(0, 9))
{
case "urn:sha1:": //base32 hash
case "urn:btih:":
if (val.Length == 32)
{
InfoHash = InfoHash.FromBase32(val);
}
else if (val.Length == 40)
{
InfoHash = InfoHash.FromHex(val);
}
else
{
throw new FormatException("Infohash must be base32 or hex encoded.");
}
break;
}
break;
case "tr": //address tracker
var bytes = UriHelper.UrlDecode(keyval[1]);
AnnounceUrls.Add(Encoding.UTF8.GetString(bytes));
break;
case "ws": //webseed
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;
}
}
}
protected void LoadInternal(BEncodedDictionary torrentInformation)
{
Check.TorrentInformation(torrentInformation);
originalDictionary = 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 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);
}
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);
RawTrackerTier collection = new RawTrackerTier();
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);
}
}
}
public void NullHex()
{
Assert.Throws <ArgumentNullException> (() => {
InfoHash.FromHex(null);
});
}
public override int GetHashCode()
{
return(InfoHash.GetHashCode());
}
public void InvalidBase32()
{
Assert.Throws <ArgumentException> (() => InfoHash.FromBase32("YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5"));
Assert.Throws <ArgumentException> (() => InfoHash.FromBase32("YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5?"));
}
public void InvalidHex()
{
Assert.Throws <ArgumentException> (() => {
InfoHash.FromHex("123123123123123123123");
});
}
public void NullHex()
{
InfoHash.FromHex(null);
}
public void InvalidHex()
{
InfoHash.FromHex("123123123123123123123");
}
//[ExpectedException(typeof(ArgumentNullException))]
public void NullHex()
{
Assert.Catch <ArgumentException>(() =>
InfoHash.FromHex(null));
}
//[ExpectedException (typeof(ArgumentException))]
public void InvalidHex()
{
Assert.Catch <ArgumentException>(() =>
InfoHash.FromHex("123123123123123123123"));
}
public void ParseFromMagnetLin()
{
var infoHash = InfoHash.FromMagnetLink("magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C&xl=12345");
Assert.IsNotNull(infoHash);
}
