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using Gee;
using Xmpp;
using Xmpp;
using Dino.Entities;
namespace Dino {
public class PgpManager : StreamInteractionModule, Object {
public const string id = "pgp_manager";
public const string MESSAGE_ENCRYPTED = "pgp";
private StreamInteractor stream_interactor;
private Database db;
private HashMap<Jid, string> pgp_key_ids = new HashMap<Jid, string>(Jid.hash_bare_func, Jid.equals_bare_func);
public static void start(StreamInteractor stream_interactor, Database db) {
PgpManager m = new PgpManager(stream_interactor, db);
stream_interactor.add_module(m);
(GLib.Application.get_default() as Application).plugin_registry.register_encryption_list_entry(new EncryptionListEntry(m));
}
private class EncryptionListEntry : Plugins.EncryptionListEntry, Object {
private PgpManager pgp_manager;
public EncryptionListEntry(PgpManager pgp_manager) {
this.pgp_manager = pgp_manager;
}
public Entities.Encryption encryption { get {
return Encryption.PGP;
}}
public string name { get {
return "OpenPGP";
}}
public bool can_encrypt(Entities.Conversation conversation) {
return pgp_manager.pgp_key_ids.has_key(conversation.counterpart);
}
}
private PgpManager(StreamInteractor stream_interactor, Database db) {
this.stream_interactor = stream_interactor;
this.db = db;
stream_interactor.account_added.connect(on_account_added);
MessageManager.get_instance(stream_interactor).pre_message_received.connect(on_pre_message_received);
MessageManager.get_instance(stream_interactor).pre_message_send.connect(on_pre_message_send);
}
private void on_pre_message_received(Entities.Message message, Xmpp.Message.Stanza message_stanza, Conversation conversation) {
if (Xep.Pgp.MessageFlag.get_flag(message_stanza) != null && Xep.Pgp.MessageFlag.get_flag(message_stanza).decrypted) {
message.encryption = Encryption.PGP;
}
}
private void on_pre_message_send(Entities.Message message, Xmpp.Message.Stanza message_stanza, Conversation conversation) {
if (message.encryption == Encryption.PGP) {
string? key_id = get_key_id(conversation.account, message.counterpart);
bool encrypted = false;
if (key_id != null) {
encrypted = stream_interactor.get_stream(conversation.account).get_module(Xep.Pgp.Module.IDENTITY).encrypt(message_stanza, key_id);
}
if (!encrypted) {
message.marked = Entities.Message.Marked.WONTSEND;
}
}
}
public string? get_key_id(Account account, Jid jid) {
return db.get_pgp_key(jid);
}
public static PgpManager? get_instance(StreamInteractor stream_interactor) {
return (PgpManager) stream_interactor.get_module(id);
}
internal string get_id() {
return id;
}
private void on_account_added(Account account) {
stream_interactor.module_manager.get_module(account, Xep.Pgp.Module.IDENTITY).received_jid_key_id.connect((stream, jid, key_id) => {
on_jid_key_received(account, new Jid(jid), key_id);
});
}
private void on_jid_key_received(Account account, Jid jid, string key_id) {
if (!pgp_key_ids.has_key(jid) || pgp_key_ids[jid] != key_id) {
if (!MucManager.get_instance(stream_interactor).is_groupchat_occupant(jid, account)) {
db.set_pgp_key(jid.bare_jid, key_id);
}
}
pgp_key_ids[jid] = key_id;
}
}
}
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