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#pragma once
#include <xmpp/adhoc_commands_handler.hpp>
#include <network/tcp_socket_handler.hpp>
#include <xmpp/xmpp_parser.hpp>
#include <xmpp/body.hpp>
#include <unordered_map>
#include <memory>
#include <string>
#include <ctime>
#include <map>
#define STREAM_NS "http://etherx.jabber.org/streams"
#define COMPONENT_NS "jabber:component:accept"
#define MUC_NS "http://jabber.org/protocol/muc"
#define MUC_USER_NS MUC_NS"#user"
#define MUC_ADMIN_NS MUC_NS"#admin"
#define DISCO_NS "http://jabber.org/protocol/disco"
#define DISCO_ITEMS_NS DISCO_NS"#items"
#define DISCO_INFO_NS DISCO_NS"#info"
#define XHTMLIM_NS "http://jabber.org/protocol/xhtml-im"
#define STANZA_NS "urn:ietf:params:xml:ns:xmpp-stanzas"
#define STREAMS_NS "urn:ietf:params:xml:ns:xmpp-streams"
#define VERSION_NS "jabber:iq:version"
#define ADHOC_NS "http://jabber.org/protocol/commands"
#define PING_NS "urn:xmpp:ping"
/**
* An XMPP component, communicating with an XMPP server using the protocole
* described in XEP-0114: Jabber Component Protocol
*
* TODO: implement XEP-0225: Component Connections
*/
class XmppComponent: public TCPSocketHandler
{
public:
explicit XmppComponent(std::shared_ptr<Poller> poller, const std::string& hostname, const std::string& secret);
virtual ~XmppComponent() = default;
XmppComponent(const XmppComponent&) = delete;
XmppComponent(XmppComponent&&) = delete;
XmppComponent& operator=(const XmppComponent&) = delete;
XmppComponent& operator=(XmppComponent&&) = delete;
void on_connection_failed(const std::string& reason) override final;
void on_connected() override final;
void on_connection_close(const std::string& error) override final;
void parse_in_buffer(const size_t size) override final;
/**
* Returns a unique id, to be used in the 'id' element of our iq stanzas.
*/
static std::string next_id();
bool is_document_open() const;
/**
* Connect to the XMPP server.
*/
void start();
/**
* Reset the component so we can use the component on a new XMPP stream
*/
void reset();
/**
* Serialize the stanza and add it to the out_buf to be sent to the
* server.
*/
void send_stanza(const Stanza& stanza);
/**
* Handle the opening of the remote stream
*/
void on_remote_stream_open(const XmlNode& node);
/**
* Handle the closing of the remote stream
*/
void on_remote_stream_close(const XmlNode& node);
/**
* Handle received stanzas
*/
void on_stanza(const Stanza& stanza);
/**
* Send an error stanza. Message being the name of the element inside the
* stanza, and explanation being a short human-readable sentence
* describing the error.
*/
void send_stream_error(const std::string& message, const std::string& explanation);
/**
* Send error stanza, described in http://xmpp.org/rfcs/rfc6120.html#stanzas-error
*/
void send_stanza_error(const std::string& kind, const std::string& to, const std::string& from,
const std::string& id, const std::string& error_type,
const std::string& defined_condition, const std::string& text,
const bool fulljid=true);
/**
* Send the closing signal for our document (not closing the connection though).
*/
void close_document();
/**
* Send a message from from@served_hostname, with the given body
*
* If fulljid is false, the provided 'from' doesn't contain the
* server-part of the JID and must be added.
*/
void send_message(const std::string& from, Xmpp::body&& body,
const std::string& to, const std::string& type,
const bool fulljid=false);
/**
* Send a join from a new participant
*/
void send_user_join(const std::string& from,
const std::string& nick,
const std::string& realjid,
const std::string& affiliation,
const std::string& role,
const std::string& to,
const bool self);
/**
* Send an error to indicate that the user tried to join an invalid room
*/
void send_invalid_room_error(const std::string& muc_jid,
const std::string& nick,
const std::string& to);
/**
* Send an error to indicate that the user tried to send a message to an
* invalid user.
*/
void send_invalid_user_error(const std::string& user_name,
const std::string& to);
/**
* Send the MUC topic to the user
*/
void send_topic(const std::string& from, Xmpp::body&& xmpp_topic, const std::string& to, const std::string& who);
/**
* Send a (non-private) message to the MUC
*/
void send_muc_message(const std::string& muc_name, const std::string& nick, Xmpp::body&& body, const std::string& jid_to);
/**
* Send a message, with a <delay/> element, part of a MUC history
*/
void send_history_message(const std::string& muc_name, const std::string& nick, const std::string& body,
const std::string& jid_to, const std::time_t timestamp);
/**
* Send an unavailable presence for this nick
*/
void send_muc_leave(const std::string& muc_name, std::string&& nick, Xmpp::body&& message, const std::string& jid_to, const bool self);
/**
* Indicate that a participant changed his nick
*/
void send_nick_change(const std::string& muc_name,
const std::string& old_nick,
const std::string& new_nick,
const std::string& affiliation,
const std::string& role,
const std::string& jid_to,
const bool self);
/**
* An user is kicked from a room
*/
void kick_user(const std::string& muc_name,
const std::string& target,
const std::string& reason,
const std::string& author,
const std::string& jid_to);
/**
* Send a generic presence error
*/
void send_presence_error(const std::string& muc_name,
const std::string& nickname,
const std::string& jid_to,
const std::string& type,
const std::string& condition,
const std::string& error_code,
const std::string& text);
/**
* Send a presence from the MUC indicating a change in the role and/or
* affiliation of a participant
*/
void send_affiliation_role_change(const std::string& muc_name,
const std::string& target,
const std::string& affiliation,
const std::string& role,
const std::string& jid_to);
/**
* Send a result IQ with the gateway disco informations.
*/
void send_self_disco_info(const std::string& id, const std::string& jid_to);
/**
* Send a result IQ with the given version, or the gateway version if the
* passed string is empty.
*/
void send_version(const std::string& id, const std::string& jid_to, const std::string& jid_from,
const std::string& version="");
/**
* Send the list of all available ad-hoc commands to that JID. The list is
* different depending on what JID made the request.
*/
void send_adhoc_commands_list(const std::string& id, const std::string& requester_jid, const std::string& from_jid,
const bool with_admin_only, const AdhocCommandsHandler& adhoc_handler);
/**
* Send an iq version request
*/
void send_iq_version_request(const std::string& from,
const std::string& jid_to);
/**
* Send an empty iq of type result
*/
void send_iq_result(const std::string& id, const std::string& to_jid, const std::string& from);
void send_iq_result_full_jid(const std::string& id, const std::string& to_jid,
const std::string& from_full_jid);
void handle_handshake(const Stanza& stanza);
void handle_error(const Stanza& stanza);
virtual void after_handshake() {}
/**
* Whether or not we ever succeeded our authentication to the XMPP server
*/
bool ever_auth;
/**
* Whether or not this is the first consecutive try on connecting to the
* XMPP server. We use this to delay the connection attempt for a few
* seconds, if it is not the first try.
*/
bool first_connection_try;
private:
/**
* Return a buffer provided by the XML parser, to read data directly into
* it, and avoiding some unnecessary copy.
*/
void* get_receive_buffer(const size_t size) const override final;
XmppParser parser;
std::string stream_id;
std::string secret;
bool authenticated;
/**
* Whether or not OUR XMPP document is open
*/
bool doc_open;
protected:
std::string served_hostname;
std::unordered_map<std::string, std::function<void(const Stanza&)>> stanza_handlers;
AdhocCommandsHandler adhoc_commands_handler;
};
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