/// <summary>
/// Empaqquete un DIscoInfo
/// </summary>
/// <param name="info">DicoInfo</param>
/// <returns>Ampaquetage</returns>
public static string DiscoInfoToVersion(DiscoInfo info)
{
StringBuilder builder = new StringBuilder(256);
DiscoIdentity[] identities = info.GetIdentities();
string[] ids = new string[identities.Length];
for (int i = 0; i < identities.Length; i++)
{
ids[i] = string.Format("{0}/{1}", identities[i].Category, identities[i].Type);
}
Array.Sort(ids);
foreach (string id in ids)
{
builder.AppendFormat("{0}<", id);
}
DiscoFeature[] features = info.GetFeatures();
string[] feas = new string[features.Length];
for (int i = 0; i < features.Length; i++)
{
feas[i] = features[i].Var;
}
Array.Sort(feas);
foreach (string fea in feas)
{
builder.AppendFormat("{0}<", fea);
}
SHA1Managed sha1 = new SHA1Managed();
byte[] hash = sha1.ComputeHash(Encoding.Unicode.GetBytes(builder.ToString()));
return Convert.ToBase64String(hash);
}
public void AddToCache(Capabilities capabilities, DiscoInfo discoInfo)
{
if (discoInfo.GetFeatures().Length > 0)
{
lock (_cacheLock)
{
string caps = GetCapsString(capabilities);
_cache[GetCapsString(capabilities)] = discoInfo;
Database.SaveCapsCache(caps, discoInfo.ToString());
}
}
}
private string BuildCapsVersion(DiscoInfo di)
{
/*
1. Initialize an empty string S.
2. Sort the service discovery identities by category and then by type (if it exists), formatted as 'category' '/' 'type'.
3. For each identity, append the 'category/type' to S, followed by the '<' character.
4. Sort the supported features.
5. For each feature, append the feature to S, followed by the '<' character.
6. Compute ver by hashing S using the SHA-1 algorithm as specified in RFC 3174 [17] (with binary output) and
encoding the hash using Base64 as specified in Section 4 of RFC 4648 [18]
(note: the Base64 output MUST NOT include whitespace and MUST set padding bits to zero). [19]
*/
ArrayList features = new ArrayList();
ArrayList identities = new ArrayList();
foreach (DiscoIdentity did in di.GetIdentities())
identities.Add(did.Type == null ? did.Category : did.Category + "/" + did.Type);
foreach (DiscoFeature df in di.GetFeatures())
features.Add(df.Var);
identities.Sort();
features.Sort();
StringBuilder S = new StringBuilder();
foreach (string s in identities)
S.Append(s + "<");
foreach (string s in features)
S.Append(s + "<");
byte[] sha1 = util.Hash.Sha1HashBytes(S.ToString());
#if CF
return Convert.ToBase64String(sha1, 0, sha1.Length);
#else
return Convert.ToBase64String(sha1);
#endif
}
/// <summary>
/// Builds and sets the caps ver attribute from a DiscoInfo object
/// </summary>
/// <param name="di"></param>
public void SetVersion(DiscoInfo di)
{
Version = BuildCapsVersion(di);
}
public DiscoInfoIq(IqType type)
: this()
{
this.Type = type;
Query = new DiscoInfo();
}
/// <summary>
/// Retourne notre DiscoInfo
/// </summary>
/// <returns>DiscoInfo</returns>
public static DiscoInfo getDiscoInfo()
{
DiscoInfo di = new DiscoInfo();
di.AddIdentity(new DiscoIdentity("pc", "client", "nJim"));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.CLIENT));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.DISCO_INFO));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.IQ_AVATAR));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.VCARD));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.VCARD_UPDATE));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.X_AVATAR));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.X_DELAY));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.IQ_VERSION));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.IQ_TIME));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.IQ_LAST));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.PING));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.IQ_PRIVACY));
di.AddFeature(new DiscoFeature(agsXMPP.Uri.STORAGE_BOOKMARKS));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/mood"));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/mood+notify"));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/tune"));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/tune+notify"));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/geoloc"));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/geoloc+notify"));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/activity"));
di.AddFeature(new DiscoFeature("http://jabber.org/protocol/activity+notify"));
return di;
}
void FindGroupChatsChatInfoParse(Jid jid, DiscoInfo items, List<GroupChatModel> list)
{
var ident = items.SelectSingleElement<DiscoIdentity>();
string name;
if (ident != null && !String.IsNullOrEmpty(ident.Name)) {
name = ident.Name + " [" + jid + "]";
} else {
name = jid;
}
var chat = new GroupChatModel(jid, name, null);
chat.PersonCount = -1;
var x = items.SelectSingleElement<agsXMPP.protocol.x.data.Data>();
if (x != null) {
var users_field = x.GetField("muc#roominfo_occupants");
var topic_field = x.GetField("muc#roominfo_subject");
var desc_field = x.GetField("muc#roominfo_description");
if (users_field != null) {
chat.PersonCount = int.Parse(users_field.GetValue());
}
if (topic_field != null) {
chat.Topic = new MessageModel(topic_field.GetValue());
} else if (desc_field != null) {
chat.Topic = new MessageModel(desc_field.GetValue());
}
}
lock (list) {
list.Add(chat);
}
}
void AddCapabilityToResource(Jid jid, DiscoInfo info)
{
XmppPersonModel contact;
if (!Contacts.TryGetValue(jid.Bare, out contact)) {
return;
}
XmppResourceModel res;
if (!contact.Resources.TryGetValue(jid.Resource??"", out res)) {
return;
}
res.Disco = info;
}
/// <summary>
/// Builds and sets the caps ver attribute from a DiscoInfo object
/// </summary>
/// <param name="di"></param>
public void SetVersion(DiscoInfo di)
{
Hash = "sha-1";
Version = BuildCapsVersion(di);
}
